diff options
| author | Tiago Gomes <tiago.gomes@codethink.co.uk> | 2015-02-09 16:56:45 +0000 |
|---|---|---|
| committer | Tiago Gomes <tiago.gomes@codethink.co.uk> | 2015-02-09 16:56:45 +0000 |
| commit | ca205b6dc7dea34141cb4acd129a3d272d7961c2 (patch) | |
| tree | ff040dce1d79f870f61ccf90e7a8a557a2a4f004 | |
| parent | 233514106dcde5ac61a70f1043de563122e2f1c9 (diff) | |
| parent | eab087969b5a57ab226d714fb7e3a1471d6f8dac (diff) | |
| download | openssh-baserock/tiagogomes/armv8l64.tar.gz | |
Merge remote-tracking branch 'origin/V_6_5' into baserock/tiagogomes/armv8l64baserock/tiagogomes/armv8l64
Conflicts:
ssh_config
sshd_config
306 files changed, 24084 insertions, 8184 deletions
@@ -1,2019 +1,2666 @@ -20120215 - - (tim) [openbsd-compat/bsd-misc.h sshd.c] Fix conflicting return type for - unsetenv due to rev 1.14 change to setenv.c. Cast unsetenv to void in sshd.c +20140130 + - (djm) [configure.ac] Only check for width-specified integer types + in headers that actually exist. patch from Tom G. Christensen; ok dtucker@ - - (tim) [defines.h] move chunk introduced in 1.125 before MAXPATHLEN so - it actually works. - - (tim) [regress/keytype.sh] stderr redirection needs to be inside back quote - to work. Spotted by Angel Gonzalez + - (djm) [configure.ac atomicio.c] Kludge around NetBSD offering + different symbols for 'read' when various compiler flags are + in use, causing atomicio.c comparisons against it to break and + read/write operations to hang; ok dtucker + - (djm) Release openssh-6.5p1 + +20140129 + - (djm) [configure.ac] Fix broken shell test '==' vs '='; patch from + Tom G. Christensen + +20140128 + - (djm) [configure.ac] Search for inet_ntop in libnsl and libresovl; + ok dtucker + - (djm) [sshd.c] Use kill(0, ...) instead of killpg(0, ...); the + latter being specified to have undefined behaviour in SUSv3; + ok dtucker + - (tim) [regress/agent.sh regress/agent-ptrace.sh] Assign $? to a variable + when used as an error message inside an if statement so we display the + correct into. agent.sh patch from Petr Lautrbach. -20120214 - - (djm) [openbsd-compat/bsd-cygwin_util.c] Add PROGRAMFILES to list of - preserved Cygwin environment variables; from Corinna Vinschen +20140127 + - (dtucker) [Makefile.in] Remove trailing backslash which some make + implementations (eg older Solaris) do not cope with. -20120211 +20140126 + - OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2014/01/25 10:12:50 + [cipher.c cipher.h kex.c kex.h kexgexc.c] + Add a special case for the DH group size for 3des-cbc, which has an + effective strength much lower than the key size. This causes problems + with some cryptlib implementations, which don't support group sizes larger + than 4k but also don't use the largest group size it does support as + specified in the RFC. Based on a patch from Petr Lautrbach at Redhat, + reduced by me with input from Markus. ok djm@ markus@ + - markus@cvs.openbsd.org 2014/01/25 20:35:37 + [kex.c] + dh_need needs to be set to max(seclen, blocksize, ivlen, mac_len) + ok dtucker@, noted by mancha + - (djm) [configure.ac sandbox-capsicum.c sandbox-rlimit.c] Disable + RLIMIT_NOFILE pseudo-sandbox on FreeBSD. In some configurations, + libc will attempt to open additional file descriptors for crypto + offload and crash if they cannot be opened. + - (djm) [configure.ac] correct AC_DEFINE for previous. + +20140125 + - (djm) [configure.ac] Fix detection of capsicum sandbox on FreeBSD + - (djm) [configure.ac] Do not attempt to use capsicum sandbox unless + sys/capability.h exists and cap_rights_limit is in libc. Fixes + build on FreeBSD9x which provides the header but not the libc + support. + - (djm) [configure.ac] autoconf sets finds to 'yes' not '1', so test + against the correct thing. + +20140124 + - (djm) [Makefile.in regress/scp-ssh-wrapper.sh regress/scp.sh] Make + the scp regress test actually test the built scp rather than the one + in $PATH. ok dtucker@ + +20140123 + - (tim) [session.c] Improve error reporting on set_id(). + - (dtucker) [configure.ac] NetBSD's (and FreeBSD's) strnvis is gratuitously + incompatible with OpenBSD's despite post-dating it by more than a decade. + Declare it as broken, and document FreeBSD's as the same. ok djm@ + +20140122 + - (djm) [openbsd-compat/setproctitle.c] Don't fail to compile if a + platform that is expected to use the reuse-argv style setproctitle + hack surprises us by providing a setproctitle in libc; ok dtucker + - (djm) [configure.ac] Unless specifically requested, only attempt + to build Position Independent Executables on gcc >= 4.x; ok dtucker + - (djm) [configure.ac aclocal.m4] More tests to detect fallout from + platform hardening options: include some long long int arithmatic + to detect missing support functions for -ftrapv in libgcc and + equivalents, actually test linking when -ftrapv is supplied and + set either both -pie/-fPIE or neither. feedback and ok dtucker@ + +20140121 + - (dtucker) [configure.ac] Make PIE a configure-time option which defaults + to on platforms where it's known to be reliably detected and off elsewhere. + Works around platforms such as FreeBSD 9.1 where it does not interop with + -ftrapv (it seems to work but fails when trying to link ssh). ok djm@ + - (dtucker) [aclocal.m4] Differentiate between compile-time and link-time + tests in the configure output. ok djm. + - (tim) [platform.c session.c] Fix bug affecting SVR5 platforms introduced + with sftp chroot support. Move set_id call after chroot. + - (djm) [aclocal.m4] Flesh out the code run in the OSSH_CHECK_CFLAG_COMPILE + and OSSH_CHECK_LDFLAG_LINK tests to give them a better chance of + detecting toolchain-related problems; ok dtucker + +20140120 + - (dtucker) [gss-serv-krb5.c] Fall back to krb5_cc_gen_new if the Kerberos + implementation does not have krb5_cc_new_unique, similar to what we do + in auth-krb5.c. + - (djm) [regress/cert-hostkey.sh] Fix regress failure on platforms that + skip one or more key types (e.g. RHEL/CentOS 6.5); ok dtucker@ - (djm) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2012/01/05 00:16:56 - [monitor.c] - memleak on error path - - djm@cvs.openbsd.org 2012/01/07 21:11:36 - [mux.c] - fix double-free in new session handler - - miod@cvs.openbsd.org 2012/01/08 13:17:11 - [ssh-ecdsa.c] - Fix memory leak in ssh_ecdsa_verify(); from Loganaden Velvindron, - ok markus@ - - miod@cvs.openbsd.org 2012/01/16 20:34:09 - [ssh-pkcs11-client.c] - Fix a memory leak in pkcs11_rsa_private_encrypt(), reported by Jan Klemkow. - While there, be sure to buffer_clear() between send_msg() and recv_msg(). + - djm@cvs.openbsd.org 2014/01/20 00:08:48 + [digest.c] + memleak; found by Loganaden Velvindron @ AfriNIC; ok markus@ + +20140119 + - (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2014/01/17 06:23:24 + [sftp-server.c] + fix log message statvfs. ok djm + - dtucker@cvs.openbsd.org 2014/01/18 09:36:26 + [session.c] + explicitly define USE_PIPES to 1 to prevent redefinition warnings in + portable on platforms that use pipes for everything. From vinschen at + redhat. + - dtucker@cvs.openbsd.org 2014/01/19 04:17:29 + [canohost.c addrmatch.c] + Cast socklen_t when comparing to size_t and use socklen_t to iterate over + the ip options, both to prevent signed/unsigned comparison warnings. + Patch from vinschen at redhat via portable openssh, begrudging ok deraadt. + - djm@cvs.openbsd.org 2014/01/19 04:48:08 + [ssh_config.5] + fix inverted meaning of 'no' and 'yes' for CanonicalizeFallbackLocal + - dtucker@cvs.openbsd.org 2014/01/19 11:21:51 + [addrmatch.c] + Cast the sizeof to socklen_t so it'll work even if the supplied len is + negative. Suggested by and ok djm, ok deraadt. + +20140118 + - (dtucker) [uidswap.c] Prevent unused variable warnings on Cygwin. Patch + from vinschen at redhat.com + - (dtucker) [openbsd-compat/bsd-cygwin_util.h] Add missing function + declarations that stopped being included when we stopped including + <windows.h> from openbsd-compat/bsd-cygwin_util.h. Patch from vinschen at + redhat.com. + - (dtucker) [configure.ac] On Cygwin the getopt variables (like optargs, + optind) are defined in getopt.h already. Unfortunately they are defined as + "declspec(dllimport)" for historical reasons, because the GNU linker didn't + allow auto-import on PE/COFF targets way back when. The problem is the + dllexport attributes collide with the definitions in the various source + files in OpenSSH, which obviousy define the variables without + declspec(dllimport). The least intrusive way to get rid of these warnings + is to disable warnings for GCC compiler attributes when building on Cygwin. + Patch from vinschen at redhat.com. + - (dtucker) [sandbox-capsicum.c] Correct some error messages and make the + return value check for cap_enter() consistent with the other uses in + FreeBSD. From by Loganaden Velvindron @ AfriNIC via bz#2140. + +20140117 + - (dtucker) [aclocal.m4 configure.ac] Add some additional compiler/toolchain + hardening flags including -fstack-protector-strong. These default to on + if the toolchain supports them, but there is a configure-time knob + (--without-hardening) to disable them if necessary. ok djm@ + - (djm) [sftp-client.c] signed/unsigned comparison fix + - (dtucker) [loginrec.c] Cast to the types specfied in the format + specification to prevent warnings. + - (dtucker) [crypto_api.h] Wrap stdlib.h include inside #ifdef HAVE_STDINT_H. + - (dtucker) [poly1305.c] Wrap stdlib.h include inside #ifdef HAVE_STDINT_H. + - (dtucker) [blocks.c fe25519.c ge25519.c hash.c sc25519.c verify.c] Include + includes.h to pull in all of the compatibility stuff. + - (dtucker) [openbsd-compat/bcrypt_pbkdf.c] Wrap stdlib.h include inside + #ifdef HAVE_STDINT_H. + - (dtucker) [defines.h] Add typedefs for uintXX_t types for platforms that + don't have them. + - (dtucker) [configure.ac] Split AC_CHECK_FUNCS for OpenSSL functions into + separate lines and alphabetize for easier diffing of changes. + - (dtucker) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2014/01/17 00:21:06 + [sftp-client.c] + signed/unsigned comparison warning fix; from portable (Id sync only) + - dtucker@cvs.openbsd.org 2014/01/17 05:26:41 + [digest.c] + remove unused includes. ok djm@ + - (djm) [Makefile.in configure.ac sandbox-capsicum.c sandbox-darwin.c] + [sandbox-null.c sandbox-rlimit.c sandbox-seccomp-filter.c] + [sandbox-systrace.c ssh-sandbox.h sshd.c] Support preauth sandboxing + using the Capsicum API introduced in FreeBSD 10. Patch by Dag-Erling + Smorgrav, updated by Loganaden Velvindron @ AfriNIC; ok dtucker@ + - (dtucker) [configure.ac digest.c openbsd-compat/openssl-compat.c + openbsd-compat/openssl-compat.h] Add compatibility layer for older + openssl versions. ok djm@ + - (dtucker) Fix typo in #ifndef. + - (dtucker) [configure.ac openbsd-compat/bsd-statvfs.c + openbsd-compat/bsd-statvfs.h] Implement enough of statvfs on top of statfs + to be useful (and for the regression tests to pass) on platforms that + have statfs and fstatfs. ok djm@ + - (dtucker) [openbsd-compat/bsd-statvfs.h] Only start including headers if we + need them to cut down on the name collisions. + - (dtucker) [configure.ac] Also look in inttypes.h for uintXX_t types. + - (dtucker) [configure.ac] Have --without-hardening not turn off + stack-protector since that has a separate flag that's been around a while. + - (dtucker) [readconf.c] Wrap paths.h inside an ifdef. Allows building on + Solaris. + - (dtucker) [defines.h] Move our definitions of uintXX_t types down to after + they're defined if we have to define them ourselves. Fixes builds on old + AIX. + +20140118 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2014/01/16 07:31:09 + [sftp-client.c] + needless and incorrect cast to size_t can break resumption of + large download; patch from tobias@ + - djm@cvs.openbsd.org 2014/01/16 07:32:00 + [version.h] + openssh-6.5 + - (djm) [contrib/caldera/openssh.spec contrib/redhat/openssh.spec] + [contrib/suse/openssh.spec] Crank RPM spec version numbers. + - (djm) [README] update release notes URL. + +20140112 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2014/01/10 05:59:19 + [sshd_config] + the /etc/ssh/ssh_host_ed25519_key is loaded by default too + - djm@cvs.openbsd.org 2014/01/12 08:13:13 + [bufaux.c buffer.h kex.c kex.h kexc25519.c kexc25519c.c kexc25519s.c] + [kexdhc.c kexdhs.c kexecdhc.c kexecdhs.c kexgexc.c kexgexs.c] + avoid use of OpenSSL BIGNUM type and functions for KEX with + Curve25519 by adding a buffer_put_bignum2_from_string() that stores + a string using the bignum encoding rules. Will make it easier to + build a reduced-feature OpenSSH without OpenSSL in the future; ok markus@ - - dtucker@cvs.openbsd.org 2012/01/18 21:46:43 - [clientloop.c] - Ensure that $DISPLAY contains only valid characters before using it to - extract xauth data so that it can't be used to play local shell - metacharacter games. Report from r00t_ati at ihteam.net, ok markus. - - markus@cvs.openbsd.org 2012/01/25 19:26:43 - [packet.c] - do not permit SSH2_MSG_SERVICE_REQUEST/ACCEPT during rekeying; - ok dtucker@, djm@ - - markus@cvs.openbsd.org 2012/01/25 19:36:31 + +20140110 + - (djm) OpenBSD CVS Sync + - tedu@cvs.openbsd.org 2014/01/04 17:50:55 + [mac.c monitor_mm.c monitor_mm.h xmalloc.c] + use standard types and formats for size_t like variables. ok dtucker + - guenther@cvs.openbsd.org 2014/01/09 03:26:00 + [sftp-common.c] + When formating the time for "ls -l"-style output, show dates in the future + with the year, and rearrange a comparison to avoid a potentional signed + arithmetic overflow that would give the wrong result. + ok djm@ + - djm@cvs.openbsd.org 2014/01/09 23:20:00 + [digest.c digest.h hostfile.c kex.c kex.h kexc25519.c kexc25519c.c] + [kexc25519s.c kexdh.c kexecdh.c kexecdhc.c kexecdhs.c kexgex.c kexgexc.c] + [kexgexs.c key.c key.h roaming_client.c roaming_common.c schnorr.c] + [schnorr.h ssh-dss.c ssh-ecdsa.c ssh-rsa.c sshconnect2.c] + Introduce digest API and use it to perform all hashing operations + rather than calling OpenSSL EVP_Digest* directly. Will make it easier + to build a reduced-feature OpenSSH without OpenSSL in future; + feedback, ok markus@ + - djm@cvs.openbsd.org 2014/01/09 23:26:48 + [sshconnect.c sshd.c] + ban clients/servers that suffer from SSH_BUG_DERIVEKEY, they are ancient, + deranged and might make some attacks on KEX easier; ok markus@ + +20140108 + - (djm) [regress/.cvsignore] Ignore regress test droppings; ok dtucker@ + +20131231 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/12/30 23:52:28 + [auth2-hostbased.c auth2-pubkey.c compat.c compat.h ssh-rsa.c] + [sshconnect.c sshconnect2.c sshd.c] + refuse RSA keys from old proprietary clients/servers that use the + obsolete RSA+MD5 signature scheme. it will still be possible to connect + with these clients/servers but only DSA keys will be accepted, and we'll + deprecate them entirely in a future release. ok markus@ + +20131229 + - (djm) [loginrec.c] Check for username truncation when looking up lastlog + entries + - (djm) [regress/Makefile] Add some generated files for cleaning + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/12/19 00:10:30 + [ssh-add.c] + skip requesting smartcard PIN when removing keys from agent; bz#2187 + patch from jay AT slushpupie.com; ok dtucker + - dtucker@cvs.openbsd.org 2013/12/19 00:19:12 + [serverloop.c] + Cast client_alive_interval to u_int64_t before assinging to + max_time_milliseconds to avoid potential integer overflow in the timeout. + bz#2170, patch from Loganaden Velvindron, ok djm@ + - djm@cvs.openbsd.org 2013/12/19 00:27:57 + [auth-options.c] + simplify freeing of source-address certificate restriction + - djm@cvs.openbsd.org 2013/12/19 01:04:36 + [channels.c] + bz#2147: fix multiple remote forwardings with dynamically assigned + listen ports. In the s->c message to open the channel we were sending + zero (the magic number to request a dynamic port) instead of the actual + listen port. The client therefore had no way of discriminating between + them. + + Diagnosis and fix by ronf AT timeheart.net + - djm@cvs.openbsd.org 2013/12/19 01:19:41 + [ssh-agent.c] + bz#2186: don't crash (NULL deref) when deleting PKCS#11 keys from an agent + that has a mix of normal and PKCS#11 keys; fix from jay AT slushpupie.com; + ok dtucker + - djm@cvs.openbsd.org 2013/12/19 22:57:13 + [poly1305.c poly1305.h] + use full name for author, with his permission + - tedu@cvs.openbsd.org 2013/12/21 07:10:47 + [ssh-keygen.1] + small typo + - djm@cvs.openbsd.org 2013/12/27 22:30:17 + [ssh-dss.c ssh-ecdsa.c ssh-rsa.c] + make the original RSA and DSA signing/verification code look more like + the ECDSA/Ed25519 ones: use key_type_plain() when checking the key type + rather than tediously listing all variants, use __func__ for debug/ + error messages + - djm@cvs.openbsd.org 2013/12/27 22:37:18 + [ssh-rsa.c] + correct comment + - djm@cvs.openbsd.org 2013/12/29 02:28:10 + [key.c] + allow ed25519 keys to appear as certificate authorities + - djm@cvs.openbsd.org 2013/12/29 02:37:04 + [key.c] + correct comment for key_to_certified() + - djm@cvs.openbsd.org 2013/12/29 02:49:52 + [key.c] + correct comment for key_drop_cert() + - djm@cvs.openbsd.org 2013/12/29 04:20:04 + [key.c] + to make sure we don't omit any key types as valid CA keys again, + factor the valid key type check into a key_type_is_valid_ca() + function + - djm@cvs.openbsd.org 2013/12/29 04:29:25 + [authfd.c] + allow deletion of ed25519 keys from the agent + - djm@cvs.openbsd.org 2013/12/29 04:35:50 [authfile.c] - memleak in key_load_file(); from Jan Klemkow - - markus@cvs.openbsd.org 2012/01/25 19:40:09 - [packet.c packet.h] - packet_read_poll() is not used anymore. - - markus@cvs.openbsd.org 2012/02/09 20:00:18 - [version.h] - move from 6.0-beta to 6.0 + don't refuse to load Ed25519 certificates + - djm@cvs.openbsd.org 2013/12/29 05:42:16 + [ssh.c] + don't forget to load Ed25519 certs too + - djm@cvs.openbsd.org 2013/12/29 05:57:02 + [sshconnect.c] + when showing other hostkeys, don't forget Ed25519 keys -20120206 - - (djm) [ssh-keygen.c] Don't fail in do_gen_all_hostkeys on platforms - that don't support ECC. Patch from Phil Oleson +20131221 + - (dtucker) [regress/keytype.sh] Actually test ecdsa key types. -20111219 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/12/02 00:41:56 - [mux.c] - fix bz#1948: ssh -f doesn't fork for multiplexed connection. - ok dtucker@ - - djm@cvs.openbsd.org 2011/12/02 00:43:57 - [mac.c] - fix bz#1934: newer OpenSSL versions will require HMAC_CTX_Init before - HMAC_init (this change in policy seems insane to me) - ok dtucker@ - - djm@cvs.openbsd.org 2011/12/04 23:16:12 - [mux.c] - revert: - > revision 1.32 - > date: 2011/12/02 00:41:56; author: djm; state: Exp; lines: +4 -1 - > fix bz#1948: ssh -f doesn't fork for multiplexed connection. - > ok dtucker@ - it interacts badly with ControlPersist - - djm@cvs.openbsd.org 2011/12/07 05:44:38 - [auth2.c dh.c packet.c roaming.h roaming_client.c roaming_common.c] - fix some harmless and/or unreachable int overflows; - reported Xi Wang, ok markus@ +20131219 + - (dtucker) [configure.ac] bz#2178: Don't try to use BSM on Solaris versions + greater than 11 either rather than just 11. Patch from Tomas Kuthan. + - (dtucker) [auth-pam.c] bz#2163: check return value from pam_get_item(). + Patch from Loganaden Velvindron. -20111125 - - OpenBSD CVS Sync - - oga@cvs.openbsd.org 2011/11/16 12:24:28 - [sftp.c] - Don't leak list in complete_cmd_parse if there are no commands found. - Discovered when I was ``borrowing'' this code for something else. +20131218 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/12/07 08:08:26 + [ssh-keygen.1] + document -a and -o wrt new key format + - naddy@cvs.openbsd.org 2013/12/07 11:58:46 + [ssh-add.1 ssh-agent.1 ssh-keygen.1 ssh-keyscan.1 ssh-keysign.8 ssh.1] + [ssh_config.5 sshd.8 sshd_config.5] + add missing mentions of ed25519; ok djm@ + - dtucker@cvs.openbsd.org 2013/12/08 09:53:27 + [sshd_config.5] + Use a literal for the default value of KEXAlgorithms. ok deraadt jmc + - markus@cvs.openbsd.org 2013/12/09 11:03:45 + [blocks.c ed25519.c fe25519.c fe25519.h ge25519.c ge25519.h] + [ge25519_base.data hash.c sc25519.c sc25519.h verify.c] + Add Authors for the public domain ed25519/nacl code. + see also http://nacl.cr.yp.to/features.html + All of the NaCl software is in the public domain. + and http://ed25519.cr.yp.to/software.html + The Ed25519 software is in the public domain. + - markus@cvs.openbsd.org 2013/12/09 11:08:17 + [crypto_api.h] + remove unused defines + - pascal@cvs.openbsd.org 2013/12/15 18:17:26 + [ssh-add.c] + Make ssh-add also add .ssh/id_ed25519; fixes lie in manual page. + ok markus@ + - djm@cvs.openbsd.org 2013/12/15 21:42:35 + [cipher-chachapoly.c] + add some comments and constify a constant + - markus@cvs.openbsd.org 2013/12/17 10:36:38 + [crypto_api.h] + I've assempled the header file by cut&pasting from generated headers + and the source files. + +20131208 + - (djm) [openbsd-compat/bsd-setres_id.c] Missing header; from Corinna + Vinschen + - (djm) [Makefile.in regress/Makefile regress/agent-ptrace.sh] + [regress/setuid-allowed.c] Check that ssh-agent is not on a no-setuid + filesystem before running agent-ptrace.sh; ok dtucker + +20131207 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/12/05 22:59:45 + [sftp-client.c] + fix memory leak in error path in do_readdir(); pointed out by + Loganaden Velvindron @ AfriNIC in bz#2163 + - djm@cvs.openbsd.org 2013/12/06 03:40:51 + [ssh-keygen.c] + remove duplicated character ('g') in getopt() string; + document the (few) remaining option characters so we don't have to + rummage next time. + - markus@cvs.openbsd.org 2013/12/06 13:30:08 + [authfd.c key.c key.h ssh-agent.c] + move private key (de)serialization to key.c; ok djm + - markus@cvs.openbsd.org 2013/12/06 13:34:54 + [authfile.c authfile.h cipher.c cipher.h key.c packet.c ssh-agent.c] + [ssh-keygen.c PROTOCOL.key] new private key format, bcrypt as KDF by + default; details in PROTOCOL.key; feedback and lots help from djm; ok djm@ + - markus@cvs.openbsd.org 2013/12/06 13:39:49 + [authfd.c authfile.c key.c key.h myproposal.h pathnames.h readconf.c] + [servconf.c ssh-agent.c ssh-keygen.c ssh-keyscan.1 ssh-keyscan.c] + [ssh-keysign.c ssh.c ssh_config.5 sshd.8 sshd.c verify.c ssh-ed25519.c] + [sc25519.h sc25519.c hash.c ge25519_base.data ge25519.h ge25519.c] + [fe25519.h fe25519.c ed25519.c crypto_api.h blocks.c] + support ed25519 keys (hostkeys and user identities) using the public + domain ed25519 reference code from SUPERCOP, see + http://ed25519.cr.yp.to/software.html + feedback, help & ok djm@ + - jmc@cvs.openbsd.org 2013/12/06 15:29:07 + [sshd.8] + missing comma; + - djm@cvs.openbsd.org 2013/12/07 00:19:15 + [key.c] + set k->cert = NULL after freeing it + - markus@cvs.openbsd.org 2013/12/06 13:52:46 + [regress/Makefile regress/agent.sh regress/cert-hostkey.sh] + [regress/cert-userkey.sh regress/keytype.sh] + test ed25519 support; from djm@ + - (djm) [blocks.c ed25519.c fe25519.c fe25519.h ge25519.c ge25519.h] + [ge25519_base.data hash.c sc25519.c sc25519.h verify.c] Fix RCS idents + - (djm) [Makefile.in] Add ed25519 sources + - (djm) [authfile.c] Conditionalise inclusion of util.h + - (djm) [configure.ac openbsd-compat/Makefile.in openbsd-compat/bcrypt_pbkdf.c] + [openbsd-compat/blf.h openbsd-compat/blowfish.c] + [openbsd-compat/openbsd-compat.h] Start at supporting bcrypt_pbkdf in + portable. + - (djm) [ed25519.c ssh-ed25519.c openbsd-compat/Makefile.in] + [openbsd-compat/bcrypt_pbkdf.c] Make ed25519/new key format compile on + Linux + - (djm) [regress/cert-hostkey.sh] Fix merge botch + - (djm) [Makefile.in] PATHSUBS and keygen bits for Ed25519; from + Loganaden Velvindron @ AfriNIC in bz#2179 + +20131205 + - (djm) OpenBSD CVS Sync + - jmc@cvs.openbsd.org 2013/11/21 08:05:09 + [ssh_config.5 sshd_config.5] + no need for .Pp before displays; + - deraadt@cvs.openbsd.org 2013/11/25 18:04:21 + [ssh.1 ssh.c] + improve -Q usage and such. One usage change is that the option is now + case-sensitive + ok dtucker markus djm + - jmc@cvs.openbsd.org 2013/11/26 12:14:54 + [ssh.1 ssh.c] + - put -Q in the right place + - Ar was a poor choice for the arguments to -Q. i've chosen an + admittedly equally poor Cm, at least consistent with the rest + of the docs. also no need for multiple instances + - zap a now redundant Nm + - usage() sync + - deraadt@cvs.openbsd.org 2013/11/26 19:15:09 + [pkcs11.h] + cleanup 1 << 31 idioms. Resurrection of this issue pointed out by + Eitan Adler ok markus for ssh, implies same change in kerberosV + - djm@cvs.openbsd.org 2013/12/01 23:19:05 + [PROTOCOL] + mention curve25519-sha256@libssh.org key exchange algorithm + - djm@cvs.openbsd.org 2013/12/02 02:50:27 + [PROTOCOL.chacha20poly1305] + typo; from Jon Cave + - djm@cvs.openbsd.org 2013/12/02 02:56:17 + [ssh-pkcs11-helper.c] + use-after-free; bz#2175 patch from Loganaden Velvindron @ AfriNIC + - djm@cvs.openbsd.org 2013/12/02 03:09:22 + [key.c] + make key_to_blob() return a NULL blob on failure; part of + bz#2175 from Loganaden Velvindron @ AfriNIC + - djm@cvs.openbsd.org 2013/12/02 03:13:14 + [cipher.c] + correct bzero of chacha20+poly1305 key context. bz#2177 from + Loganaden Velvindron @ AfriNIC + + Also make it a memset for consistency with the rest of cipher.c + - djm@cvs.openbsd.org 2013/12/04 04:20:01 + [sftp-client.c] + bz#2171: don't leak local_fd on error; from Loganaden Velvindron @ + AfriNIC + - djm@cvs.openbsd.org 2013/12/05 01:16:41 + [servconf.c servconf.h] + bz#2161 - fix AuthorizedKeysCommand inside a Match block and + rearrange things so the same error is harder to make next time; + with and ok dtucker@ + - (dtucker) [configure.ac] bz#2173: use pkg-config --libs to include correct + -L location for libedit. Patch from Serge van den Boom. + +20131121 + - (djm) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2013/11/08 11:15:19 + [bufaux.c bufbn.c buffer.c sftp-client.c sftp-common.c sftp-glob.c] + [uidswap.c] Include stdlib.h for free() as per the man page. + - markus@cvs.openbsd.org 2013/11/13 13:48:20 + [ssh-pkcs11.c] + add missing braces found by pedro + - djm@cvs.openbsd.org 2013/11/20 02:19:01 + [sshd.c] + delay closure of in/out fds until after "Bad protocol version + identification..." message, as get_remote_ipaddr/get_remote_port + require them open. + - deraadt@cvs.openbsd.org 2013/11/20 20:53:10 + [scp.c] + unsigned casts for ctype macros where neccessary + ok guenther millert markus + - deraadt@cvs.openbsd.org 2013/11/20 20:54:10 + [canohost.c clientloop.c match.c readconf.c sftp.c] + unsigned casts for ctype macros where neccessary + ok guenther millert markus + - djm@cvs.openbsd.org 2013/11/21 00:45:44 + [Makefile.in PROTOCOL PROTOCOL.chacha20poly1305 authfile.c chacha.c] + [chacha.h cipher-chachapoly.c cipher-chachapoly.h cipher.c cipher.h] + [dh.c myproposal.h packet.c poly1305.c poly1305.h servconf.c ssh.1] + [ssh.c ssh_config.5 sshd_config.5] Add a new protocol 2 transport + cipher "chacha20-poly1305@openssh.com" that combines Daniel + Bernstein's ChaCha20 stream cipher and Poly1305 MAC to build an + authenticated encryption mode. + + Inspired by and similar to Adam Langley's proposal for TLS: + http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-03 + but differs in layout used for the MAC calculation and the use of a + second ChaCha20 instance to separately encrypt packet lengths. + Details are in the PROTOCOL.chacha20poly1305 file. + + Feedback markus@, naddy@; manpage bits Loganden Velvindron @ AfriNIC + ok markus@ naddy@ + - naddy@cvs.openbsd.org 2013/11/18 05:09:32 + [regress/forward-control.sh] + bump timeout to 10 seconds to allow slow machines (e.g. Alpha PC164) + to successfully run this; ok djm@ + - djm@cvs.openbsd.org 2013/11/21 03:15:46 + [regress/krl.sh] + add some reminders for additional tests that I'd like to implement + - djm@cvs.openbsd.org 2013/11/21 03:16:47 + [regress/modpipe.c] + use unsigned long long instead of u_int64_t here to avoid warnings + on some systems portable OpenSSH is built on. + - djm@cvs.openbsd.org 2013/11/21 03:18:51 + [regress/cipher-speed.sh regress/integrity.sh regress/rekey.sh] + [regress/try-ciphers.sh] + use new "ssh -Q cipher-auth" query to obtain lists of authenticated + encryption ciphers instead of specifying them manually; ensures that + the new chacha20poly1305@openssh.com mode is tested; + + ok markus@ and naddy@ as part of the diff to add + chacha20poly1305@openssh.com -20111121 - - (dtucker) [configure.ac] Set _FORTIFY_SOURCE. ok djm@ +20131110 + - (dtucker) [regress/keytype.sh] Populate ECDSA key types to be tested by + querying the ones that are compiled in. -20111104 +20131109 + - (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2013/11/09 05:41:34 + [regress/test-exec.sh regress/rekey.sh] + Use smaller test data files to speed up tests. Grow test datafiles + where necessary for a specific test. + - (dtucker) [configure.ac kex.c key.c myproposal.h] Test for the presence of + NID_X9_62_prime256v1, NID_secp384r1 and NID_secp521r1 and test that the + latter actually works before using it. Fedora (at least) has NID_secp521r1 + that doesn't work (see https://bugzilla.redhat.com/show_bug.cgi?id=1021897). + - (dtucker) [configure.ac] Fix brackets in NID_secp521r1 test. + - (dtucker) [configure.ac] Add missing "test". + - (dtucker) [key.c] Check for the correct defines for NID_secp521r1. + +20131108 + - (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2013/11/08 01:06:14 + [regress/rekey.sh] + Rekey less frequently during tests to speed them up + - (djm) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2013/11/07 11:58:27 + [cipher.c cipher.h kex.c kex.h mac.c mac.h servconf.c ssh.c] + Output the effective values of Ciphers, MACs and KexAlgorithms when + the default has not been overridden. ok markus@ + - djm@cvs.openbsd.org 2013/11/08 00:39:15 + [auth-options.c auth2-chall.c authfd.c channels.c cipher-3des1.c] + [clientloop.c gss-genr.c monitor_mm.c packet.c schnorr.c umac.c] + [sftp-client.c sftp-glob.c] + use calloc for all structure allocations; from markus@ + - djm@cvs.openbsd.org 2013/11/08 01:38:11 + [version.h] + openssh-6.4 + - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec] + [contrib/suse/openssh.spec] Update version numbers following release. + - (dtucker) [openbsd-compat/openbsd-compat.h] Add null implementation of + arc4random_stir for platforms that have arc4random but don't have + arc4random_stir (right now this is only OpenBSD -current). + - (dtucker) [kex.c] Only enable CURVE25519_SHA256 if we actually have + EVP_sha256. + - (dtucker) [myproposal.h] Conditionally enable CURVE25519_SHA256. + - (dtucker) [openbsd-compat/bsd-poll.c] Add headers to prevent compile + warnings. + - (dtucker) [Makefile.in configure.ac] Set MALLOC_OPTIONS per platform + and pass in TEST_ENV. use stderr to get polluted + and the stderr-data test to fail. + - (dtucker) [contrib/cygwin/ssh-host-config] Simplify host key generation: + rather than testing and generating each key, call ssh-keygen -A. + Patch from vinschen at redhat.com. + - (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2013/11/09 05:41:34 + [regress/test-exec.sh regress/rekey.sh] + Use smaller test data files to speed up tests. Grow test datafiles + where necessary for a specific test. + +20131107 + - (djm) [ssh-pkcs11.c] Bring back "non-constant initialiser" fix (rev 1.5) + that got lost in recent merge. + - (djm) [Makefile.in monitor.c] Missed chunks of curve25519 KEX diff + - (djm) [regress/modpipe.c regress/rekey.sh] Never intended to commit these + - (djm) [configure.ac defines.h] Skip arc4random_stir() calls on platforms + that lack it but have arc4random_uniform() + - (djm) OpenBSD CVS Sync + - markus@cvs.openbsd.org 2013/11/04 11:51:16 + [monitor.c] + fix rekeying for KEX_C25519_SHA256; noted by dtucker@ + RCSID sync only; I thought this was a merge botch and fixed it already + - markus@cvs.openbsd.org 2013/11/06 16:52:11 + [monitor_wrap.c] + fix rekeying for AES-GCM modes; ok deraadt + - djm@cvs.openbsd.org 2013/11/06 23:05:59 + [ssh-pkcs11.c] + from portable: s/true/true_val/ to avoid name collisions on dump platforms + RCSID sync only - (dtucker) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/10/18 05:15:28 + - djm@cvs.openbsd.org 2013/10/09 23:44:14 + [regress/Makefile] (ID sync only) + regression test for sftp request white/blacklisting and readonly mode. + - markus@cvs.openbsd.org 2013/11/02 22:39:53 + [regress/kextype.sh] + add curve25519-sha256@libssh.org + - dtucker@cvs.openbsd.org 2013/11/04 12:27:42 + [regress/rekey.sh] + Test rekeying with all KexAlgorithms. + - dtucker@cvs.openbsd.org 2013/11/07 00:12:05 + [regress/rekey.sh] + Test rekeying for every Cipher, MAC and KEX, plus test every KEX with + the GCM ciphers. + - dtucker@cvs.openbsd.org 2013/11/07 01:12:51 + [regress/rekey.sh] + Factor out the data transfer rekey tests + - dtucker@cvs.openbsd.org 2013/11/07 02:48:38 + [regress/integrity.sh regress/cipher-speed.sh regress/try-ciphers.sh] + Use ssh -Q instead of hardcoding lists of ciphers or MACs. + - dtucker@cvs.openbsd.org 2013/11/07 03:55:41 + [regress/kextype.sh] + Use ssh -Q to get kex types instead of a static list. + - dtucker@cvs.openbsd.org 2013/11/07 04:26:56 + [regress/kextype.sh] + trailing space + - (dtucker) [Makefile.in configure.ac] Remove TEST_SSH_SHA256 environment + variable. It's no longer used now that we get the supported MACs from + ssh -Q. + +20131104 + - (djm) OpenBSD CVS Sync + - markus@cvs.openbsd.org 2013/11/02 20:03:54 + [ssh-pkcs11.c] + support pkcs#11 tokes that only provide x509 zerts instead of raw pubkeys; + fixes bz#1908; based on patch from Laurent Barbe; ok djm + - markus@cvs.openbsd.org 2013/11/02 21:59:15 + [kex.c kex.h myproposal.h ssh-keyscan.c sshconnect2.c sshd.c] + use curve25519 for default key exchange (curve25519-sha256@libssh.org); + initial patch from Aris Adamantiadis; ok djm@ + - markus@cvs.openbsd.org 2013/11/02 22:10:15 + [kexdhs.c kexecdhs.c] + no need to include monitor_wrap.h + - markus@cvs.openbsd.org 2013/11/02 22:24:24 + [kexdhs.c kexecdhs.c] + no need to include ssh-gss.h + - markus@cvs.openbsd.org 2013/11/02 22:34:01 + [auth-options.c] + no need to include monitor_wrap.h and ssh-gss.h + - markus@cvs.openbsd.org 2013/11/02 22:39:19 + [ssh_config.5 sshd_config.5] + the default kex is now curve25519-sha256@libssh.org + - djm@cvs.openbsd.org 2013/11/03 10:37:19 + [roaming_common.c] + fix a couple of function definitions foo() -> foo(void) + (-Wold-style-definition) + - (djm) [kexc25519.c kexc25519c.c kexc25519s.c] Import missed files from + KEX/curve25519 change + +20131103 + - (dtucker) [openbsd-compat/bsd-misc.c] Include time.h for nanosleep. + From OpenSMTPD where it prevents "implicit declaration" warnings (it's + a no-op in OpenSSH). From chl at openbsd. + - (dtucker) [openbsd-compat/setproctitle.c] Handle error case form the 2nd + vsnprintf. From eric at openbsd via chl@. + - (dtucker) [configure.ac defines.h] Add typedefs for intmax_t and uintmax_t + for platforms that don't have them. + +20131030 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/10/29 09:42:11 + [key.c key.h] + fix potential stack exhaustion caused by nested certificates; + report by Mateusz Kocielski; ok dtucker@ markus@ + - djm@cvs.openbsd.org 2013/10/29 09:48:02 + [servconf.c servconf.h session.c sshd_config sshd_config.5] + shd_config PermitTTY to disallow TTY allocation, mirroring the + longstanding no-pty authorized_keys option; + bz#2070, patch from Teran McKinney; ok markus@ + - jmc@cvs.openbsd.org 2013/10/29 18:49:32 + [sshd_config.5] + pty(4), not pty(7); + +20131026 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/10/25 23:04:51 [ssh.c] - ssh(1): skip attempting to create ~/.ssh when -F is passed; ok markus@ - - djm@cvs.openbsd.org 2011/10/18 23:37:42 - [ssh-add.c] - add -k to usage(); reminded by jmc@ - - djm@cvs.openbsd.org 2011/10/19 00:06:10 + fix crash when using ProxyCommand caused by previous commit - was calling + freeaddrinfo(NULL); spotted by sthen@ and Tim Ruehsen, patch by sthen@ + +20131025 + - (djm) [ssh-keygen.c ssh-keysign.c sshconnect1.c sshd.c] Remove + unnecessary arc4random_stir() calls. The only ones left are to ensure + that the PRNG gets a different state after fork() for platforms that + have broken the API. + +20131024 + - (djm) [auth-krb5.c] bz#2032 - use local username in krb5_kuserok check + rather than full client name which may be of form user@REALM; + patch from Miguel Sanders; ok dtucker@ + - (djm) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2013/10/23 05:40:58 + [servconf.c] + fix comment + - djm@cvs.openbsd.org 2013/10/23 23:35:32 + [sshd.c] + include local address and port in "Connection from ..." message (only + shown at loglevel>=verbose) + - dtucker@cvs.openbsd.org 2013/10/24 00:49:49 [moduli.c] - s/tmpfile/tmp/ to make this -Wshadow clean - - djm@cvs.openbsd.org 2011/10/19 10:39:48 - [umac.c] - typo in comment; patch from Michael W. Bombardieri - - djm@cvs.openbsd.org 2011/10/24 02:10:46 + Periodically print progress and, if possible, expected time to completion + when screening moduli for DH groups. ok deraadt djm + - dtucker@cvs.openbsd.org 2013/10/24 00:51:48 + [readconf.c servconf.c ssh_config.5 sshd_config.5] + Disallow empty Match statements and add "Match all" which matches + everything. ok djm, man page help jmc@ + - djm@cvs.openbsd.org 2013/10/24 08:19:36 [ssh.c] - bz#1943: unbreak stdio forwarding when ControlPersist is in user - ssh - was incorrectly requesting the forward in both the control master and - slave. skip requesting it in the master to fix. ok markus@ - - djm@cvs.openbsd.org 2011/10/24 02:13:13 - [session.c] - bz#1859: send tty break to pty master instead of (probably already - closed) slave side; "looks good" markus@ - - dtucker@cvs.openbsd.org 011/11/04 00:09:39 - [moduli] - regenerated moduli file; ok deraadt - - (dtucker) [INSTALL LICENCE configure.ac openbsd-compat/Makefile.in - openbsd-compat/getrrsetbyname-ldns.c openbsd-compat/getrrsetbyname.c] - bz 1320: Add optional support for LDNS, a BSD licensed DNS resolver library - which supports DNSSEC. Patch from Simon Vallet (svallet at genoscope cns fr) - with some rework from myself and djm. ok djm. - -20111025 - - (dtucker) [contrib/cygwin/Makefile] Continue if installing a doc file - fails. Patch from Corinna Vinschen. - -20111018 + fix bug introduced in hostname canonicalisation commit: don't try to + resolve hostnames when a ProxyCommand is set unless the user has forced + canonicalisation; spotted by Iain Morgan + - (tim) [regress/sftp-perm.sh] We need a shell that understands "! somecmd" + +20131023 - (djm) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/10/04 14:17:32 - [sftp-glob.c] - silence error spam for "ls */foo" in directory with files; bz#1683 - - dtucker@cvs.openbsd.org 2011/10/16 11:02:46 - [moduli.c ssh-keygen.1 ssh-keygen.c] - Add optional checkpoints for moduli screening. feedback & ok deraadt - - jmc@cvs.openbsd.org 2011/10/16 15:02:41 + - djm@cvs.openbsd.org 2013/10/20 04:39:28 + [ssh_config.5] + document % expansions performed by "Match command ..." + - djm@cvs.openbsd.org 2013/10/20 06:19:28 + [readconf.c ssh_config.5] + rename "command" subclause of the recently-added "Match" keyword to + "exec"; it's shorter, clearer in intent and we might want to add the + ability to match against the command being executed at the remote end in + the future. + - djm@cvs.openbsd.org 2013/10/20 09:51:26 + [scp.1 sftp.1] + add canonicalisation options to -o lists + - jmc@cvs.openbsd.org 2013/10/20 18:00:13 + [ssh_config.5] + tweak the "exec" description, as worded by djm; + - djm@cvs.openbsd.org 2013/10/23 03:03:07 + [readconf.c] + Hostname may have %h sequences that should be expanded prior to Match + evaluation; spotted by Iain Morgan + - djm@cvs.openbsd.org 2013/10/23 03:05:19 + [readconf.c ssh.c] + comment + - djm@cvs.openbsd.org 2013/10/23 04:16:22 [ssh-keygen.c] - put -K in the right place (usage()); - - stsp@cvs.openbsd.org 2011/10/16 15:51:39 - [moduli.c] - add missing includes to unbreak tree; fix from rpointel - - djm@cvs.openbsd.org 2011/10/18 04:58:26 - [auth-options.c key.c] - remove explict search for \0 in packet strings, this job is now done - implicitly by buffer_get_cstring; ok markus - - djm@cvs.openbsd.org 2011/10/18 05:00:48 - [ssh-add.1 ssh-add.c] - new "ssh-add -k" option to load plain keys (skipping certificates); - "looks ok" markus@ + Make code match documentation: relative-specified certificate expiry time + should be relative to current time and not the validity start time. + Reported by Petr Lautrbach; ok deraadt@ -20111001 - - (dtucker) [openbsd-compat/mktemp.c] Fix compiler warning. ok djm - - (dtucker) OpenBSD CVS Sync - - dtucker@cvs.openbsd.org 2011/09/23 00:22:04 - [channels.c auth-options.c servconf.c channels.h sshd.8] - Add wildcard support to PermitOpen, allowing things like "PermitOpen - localhost:*". bz #1857, ok djm markus. - - markus@cvs.openbsd.org 2011/09/23 07:45:05 - [mux.c readconf.h channels.h compat.h compat.c ssh.c readconf.c channels.c - version.h] - unbreak remote portforwarding with dynamic allocated listen ports: - 1) send the actual listen port in the open message (instead of 0). - this allows multiple forwardings with a dynamic listen port - 2) update the matching permit-open entry, so we can identify where - to connect to - report: den at skbkontur.ru and P. Szczygielski - feedback and ok djm@ - - djm@cvs.openbsd.org 2011/09/25 05:44:47 - [auth2-pubkey.c] - improve the AuthorizedPrincipalsFile debug log message to include - file and line number - - dtucker@cvs.openbsd.org 2011/09/30 00:47:37 - [sshd.c] - don't attempt privsep cleanup when not using privsep; ok markus@ - - djm@cvs.openbsd.org 2011/09/30 21:22:49 +20131018 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/10/09 23:44:14 + [regress/Makefile regress/sftp-perm.sh] + regression test for sftp request white/blacklisting and readonly mode. + - jmc@cvs.openbsd.org 2013/10/17 07:35:48 + [sftp.1 sftp.c] + tweak previous; + - djm@cvs.openbsd.org 2013/10/17 22:08:04 [sshd.c] - fix inverted test that caused logspam; spotted by henning@ - -20110929 - - (djm) [configure.ac defines.h] No need to detect sizeof(char); patch - from des AT des.no - - (dtucker) [configure.ac openbsd-compat/Makefile.in - openbsd-compat/strnlen.c] Add strnlen to the compat library. - -20110923 - - (djm) [openbsd-compat/getcwd.c] Remove OpenBSD rcsid marker since we no - longer want to sync this file (OpenBSD uses a __getcwd syscall now, we - want this longhand version) - - (djm) [openbsd-compat/getgrouplist.c] Remove OpenBSD rcsid marker: the - upstream version is YPified and we don't want this - - (djm) [openbsd-compat/mktemp.c] forklift upgrade to -current version. - The file was totally rewritten between what we had in tree and -current. - - (djm) [openbsd-compat/sha2.c openbsd-compat/sha2.h] Remove OpenBSD rcsid - marker. The upstream API has changed (function and structure names) - enough to put it out of sync with other providers of this interface. - - (djm) [openbsd-compat/setenv.c] Forklift upgrade, including inclusion - of static __findenv() function from upstream setenv.c - - OpenBSD CVS Sync - - millert@cvs.openbsd.org 2006/05/05 15:27:38 - [openbsd-compat/strlcpy.c] - Convert do {} while loop -> while {} for clarity. No binary change - on most architectures. From Oliver Smith. OK deraadt@ and henning@ - - tobias@cvs.openbsd.org 2007/10/21 11:09:30 - [openbsd-compat/mktemp.c] - Comment fix about time consumption of _gettemp. - FreeBSD did this in revision 1.20. - OK deraadt@, krw@ - - deraadt@cvs.openbsd.org 2008/07/22 21:47:45 - [openbsd-compat/mktemp.c] - use arc4random_uniform(); ok djm millert - - millert@cvs.openbsd.org 2008/08/21 16:54:44 - [openbsd-compat/mktemp.c] - Remove useless code, the kernel will set errno appropriately if an - element in the path does not exist. OK deraadt@ pvalchev@ - - otto@cvs.openbsd.org 2008/12/09 19:38:38 - [openbsd-compat/inet_ntop.c] - fix inet_ntop(3) prototype; ok millert@ libc to be bumbed very soon - -20110922 - - OpenBSD CVS Sync - - pyr@cvs.openbsd.org 2011/05/12 07:15:10 - [openbsd-compat/glob.c] - When the max number of items for a directory has reached GLOB_LIMIT_READDIR - an error is returned but closedir() is not called. - spotted and fix provided by Frank Denis obsd-tech@pureftpd.org - ok otto@, millert@ - - stsp@cvs.openbsd.org 2011/09/20 10:18:46 - [glob.c] - In glob(3), limit recursion during matching attempts. Similar to - fnmatch fix. Also collapse consecutive '*' (from NetBSD). - ok miod deraadt - - djm@cvs.openbsd.org 2011/09/22 06:27:29 - [glob.c] - fix GLOB_KEEPSTAT without GLOB_NOSORT; the implicit sort was being - applied only to the gl_pathv vector and not the corresponding gl_statv - array. reported in OpenSSH bz#1935; feedback and okay matthew@ - - djm@cvs.openbsd.org 2011/08/26 01:45:15 - [ssh.1] - Add some missing ssh_config(5) options that can be used in ssh(1)'s - -o argument. Patch from duclare AT guu.fi - - djm@cvs.openbsd.org 2011/09/05 05:56:13 - [scp.1 sftp.1] - mention ControlPersist and KbdInteractiveAuthentication in the -o - verbiage in these pages too (prompted by jmc@) - - djm@cvs.openbsd.org 2011/09/05 05:59:08 - [misc.c] - fix typo in IPQoS parsing: there is no "AF14" class, but there is - an "AF21" class. Spotted by giesen AT snickers.org; ok markus stevesk - - jmc@cvs.openbsd.org 2011/09/05 07:01:44 - [scp.1] - knock out a useless Ns; - - deraadt@cvs.openbsd.org 2011/09/07 02:18:31 - [ssh-keygen.1] - typo (they vs the) found by Lawrence Teo - - djm@cvs.openbsd.org 2011/09/09 00:43:00 - [ssh_config.5 sshd_config.5] - fix typo in IPQoS parsing: there is no "AF14" class, but there is - an "AF21" class. Spotted by giesen AT snickers.org; ok markus stevesk - - djm@cvs.openbsd.org 2011/09/09 00:44:07 - [PROTOCOL.mux] - MUX_C_CLOSE_FWD includes forward type in message (though it isn't - implemented anyway) - - djm@cvs.openbsd.org 2011/09/09 22:37:01 - [scp.c] - suppress adding '--' to remote commandlines when the first argument - does not start with '-'. saves breakage on some difficult-to-upgrade - embedded/router platforms; feedback & ok dtucker ok markus - - djm@cvs.openbsd.org 2011/09/09 22:38:21 + include remote port in bad banner message; bz#2162 + +20131017 + - (djm) OpenBSD CVS Sync + - jmc@cvs.openbsd.org 2013/10/15 14:10:25 + [ssh.1 ssh_config.5] + tweak previous; + - djm@cvs.openbsd.org 2013/10/16 02:31:47 + [readconf.c readconf.h roaming_client.c ssh.1 ssh.c ssh_config.5] + [sshconnect.c sshconnect.h] + Implement client-side hostname canonicalisation to allow an explicit + search path of domain suffixes to use to convert unqualified host names + to fully-qualified ones for host key matching. + This is particularly useful for host certificates, which would otherwise + need to list unqualified names alongside fully-qualified ones (and this + causes a number of problems). + "looks fine" markus@ + - jmc@cvs.openbsd.org 2013/10/16 06:42:25 + [ssh_config.5] + tweak previous; + - djm@cvs.openbsd.org 2013/10/16 22:49:39 + [readconf.c readconf.h ssh.1 ssh.c ssh_config.5] + s/canonicalise/canonicalize/ for consistency with existing spelling, + e.g. authorized_keys; pointed out by naddy@ + - djm@cvs.openbsd.org 2013/10/16 22:58:01 + [ssh.c ssh_config.5] + one I missed in previous: s/isation/ization/ + - djm@cvs.openbsd.org 2013/10/17 00:30:13 + [PROTOCOL sftp-client.c sftp-client.h sftp-server.c sftp.1 sftp.c] + fsync@openssh.com protocol extension for sftp-server + client support to allow calling fsync() faster successful transfer + patch mostly by imorgan AT nas.nasa.gov; bz#1798 + "fine" markus@ "grumble OK" deraadt@ "doesn't sound bad to me" millert@ + - djm@cvs.openbsd.org 2013/10/17 00:46:49 + [ssh.c] + rearrange check to reduce diff against -portable + (Id sync only) + +20131015 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/10/09 23:42:17 + [sftp-server.8 sftp-server.c] + Add ability to whitelist and/or blacklist sftp protocol requests by name. + Refactor dispatch loop and consolidate read-only mode checks. + Make global variables static, since sftp-server is linked into sshd(8). + ok dtucker@ + - djm@cvs.openbsd.org 2013/10/10 00:53:25 + [sftp-server.c] + add -Q, -P and -p to usage() before jmc@ catches me + - djm@cvs.openbsd.org 2013/10/10 01:43:03 [sshd.c] - kill the preauth privsep child on fatal errors in the monitor; - ok markus@ - - djm@cvs.openbsd.org 2011/09/09 22:46:44 - [channels.c channels.h clientloop.h mux.c ssh.c] - support for cancelling local and remote port forwards via the multiplex - socket. Use ssh -O cancel -L xx:xx:xx -R yy:yy:yy user@host" to request - the cancellation of the specified forwardings; ok markus@ - - markus@cvs.openbsd.org 2011/09/10 22:26:34 - [channels.c channels.h clientloop.c ssh.1] - support cancellation of local/dynamic forwardings from ~C commandline; - ok & feedback djm@ - - okan@cvs.openbsd.org 2011/09/11 06:59:05 - [ssh.1] - document new -O cancel command; ok djm@ - - markus@cvs.openbsd.org 2011/09/11 16:07:26 + bz#2139: fix re-exec fallback by ensuring that startup_pipe is correctly + updated; ok dtucker@ + - djm@cvs.openbsd.org 2013/10/11 02:45:36 [sftp-client.c] - fix leaks in do_hardlink() and do_readlink(); bz#1921 - from Loganaden Velvindron - - markus@cvs.openbsd.org 2011/09/12 08:46:15 + rename flag arguments to be more clear and consistent. + reorder some internal function arguments to make adding additional flags + easier. + no functional change + - djm@cvs.openbsd.org 2013/10/11 02:52:23 [sftp-client.c] - fix leak in do_lsreaddir(); ok djm - - djm@cvs.openbsd.org 2011/09/22 06:29:03 - [sftp.c] - don't let remote_glob() implicitly sort its results in do_globbed_ls() - - in all likelihood, they will be resorted anyway - -20110909 - - (dtucker) [entropy.h] Bug #1932: remove old definition of init_rng. From - Colin Watson. - -20110906 - - (djm) [README version.h] Correct version - - (djm) [contrib/redhat/openssh.spec] Correct restorcon => restorecon - - (djm) Respin OpenSSH-5.9p1 release - -20110905 - - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec] - [contrib/suse/openssh.spec] Update version numbers. - -20110904 - - (djm) [regress/connect-privsep.sh regress/test-exec.sh] demote fatal - regress errors for the sandbox to warnings. ok tim dtucker - - (dtucker) [ssh-keygen.c ssh-pkcs11.c] Bug #1929: add null implementations - ofsh-pkcs11.cpkcs_init and pkcs_terminate for building without dlopen - support. + missed one arg reorder + - djm@cvs.openbsd.org 2013/10/11 02:53:45 + [sftp-client.h] + obsolete comment + - jmc@cvs.openbsd.org 2013/10/14 14:18:56 + [sftp-server.8 sftp-server.c] + tweak previous; + ok djm + - djm@cvs.openbsd.org 2013/10/14 21:20:52 + [session.c session.h] + Add logging of session starts in a useful format; ok markus@ feedback and + ok dtucker@ + - djm@cvs.openbsd.org 2013/10/14 22:22:05 + [readconf.c readconf.h ssh-keysign.c ssh.c ssh_config.5] + add a "Match" keyword to ssh_config that allows matching on hostname, + user and result of arbitrary commands. "nice work" markus@ + - djm@cvs.openbsd.org 2013/10/14 23:28:23 + [canohost.c misc.c misc.h readconf.c sftp-server.c ssh.c] + refactor client config code a little: + add multistate option partsing to readconf.c, similar to servconf.c's + existing code. + move checking of options that accept "none" as an argument to readconf.c + add a lowercase() function and use it instead of explicit tolower() in + loops + part of a larger diff that was ok markus@ + - djm@cvs.openbsd.org 2013/10/14 23:31:01 + [ssh.c] + whitespace at EOL; pointed out by markus@ + - [ssh.c] g/c unused variable. -20110829 - - (djm) [openbsd-compat/port-linux.c] Suppress logging when attempting - to switch SELinux context away from unconfined_t, based on patch from - Jan Chadima; bz#1919 ok dtucker@ - -20110827 - - (dtucker) [auth-skey.c] Add log.h to fix build --with-skey. - -20110818 - - (tim) [configure.ac] Typo in error message spotted by Andy Tsouladze - -20110817 - - (tim) [mac.c myproposal.h] Wrap SHA256 and SHA512 in ifdefs for - OpenSSL 0.9.7. ok djm - - (djm) [ openbsd-compat/bsd-cygwin_util.c openbsd-compat/bsd-cygwin_util.h] - binary_pipe is no longer required on Cygwin; patch from Corinna Vinschen - - (djm) [configure.ac] error out if the host lacks the necessary bits for - an explicitly requested sandbox type - - (djm) [contrib/ssh-copy-id] Missing backlslash; spotted by - bisson AT archlinux.org - - (djm) OpenBSD CVS Sync - - dtucker@cvs.openbsd.org 2011/06/03 05:35:10 - [regress/cfgmatch.sh] - use OBJ to find test configs, patch from Tim Rice - - markus@cvs.openbsd.org 2011/06/30 22:44:43 - [regress/connect-privsep.sh] - test with sandbox enabled; ok djm@ - - djm@cvs.openbsd.org 2011/08/02 01:23:41 - [regress/cipher-speed.sh regress/try-ciphers.sh] - add SHA256/SHA512 based HMAC modes - - (djm) [regress/cipher-speed.sh regress/try-ciphers.sh] disable HMAC-SHA2 - MAC tests for platforms that hack EVP_SHA2 support - -20110812 - - (dtucker) [openbsd-compat/port-linux.c] Bug 1924: Improve selinux context - change error by reporting old and new context names Patch from - jchadima at redhat. - - (djm) [contrib/redhat/openssh.spec contrib/redhat/sshd.init] - [contrib/suse/openssh.spec contrib/suse/rc.sshd] Updated RHEL and SLES - init scrips from imorgan AT nas.nasa.gov; bz#1920 - - (djm) [contrib/ssh-copy-id] Fix failure for cases where the path to the - identify file contained whitespace. bz#1828 patch from gwenael.lambrouin - AT gmail.com; ok dtucker@ - -20110807 +20131010 - (dtucker) OpenBSD CVS Sync - - jmc@cvs.openbsd.org 2008/06/26 06:59:39 - [moduli.5] - tweak previous; - - sobrado@cvs.openbsd.org 2009/10/28 08:56:54 - [moduli.5] - "Diffie-Hellman" is the usual spelling for the cryptographic protocol - first published by Whitfield Diffie and Martin Hellman in 1976. - ok jmc@ - - jmc@cvs.openbsd.org 2010/10/14 20:41:28 - [moduli.5] - probabalistic -> probabilistic; from naddy - - dtucker@cvs.openbsd.org 2011/08/07 12:55:30 + - sthen@cvs.openbsd.org 2013/09/16 11:35:43 + [ssh_config] + Remove gssapi config parts from ssh_config, as was already done for + sshd_config. Req by/ok ajacoutot@ + ID SYNC ONLY for portable; kerberos/gssapi is still pretty popular + - djm@cvs.openbsd.org 2013/09/19 00:24:52 + [progressmeter.c] + store the initial file offset so the progress meter doesn't freak out + when resuming sftp transfers. bz#2137; patch from Iain Morgan; ok dtucker@` + - djm@cvs.openbsd.org 2013/09/19 00:49:12 + [sftp-client.c] + fix swapped pflag and printflag in sftp upload_dir; from Iain Morgan + - djm@cvs.openbsd.org 2013/09/19 01:24:46 + [channels.c] + bz#1297 - tell the client (via packet_send_debug) when their preferred + listen address has been overridden by the server's GatewayPorts; + ok dtucker@ + - djm@cvs.openbsd.org 2013/09/19 01:26:29 + [sshconnect.c] + bz#1211: make BindAddress work with UsePrivilegedPort=yes; patch from + swp AT swp.pp.ru; ok dtucker@ + - dtucker@cvs.openbsd.org 2013/10/08 11:42:13 + [dh.c dh.h] + Increase the size of the Diffie-Hellman groups requested for a each + symmetric key size. New values from NIST Special Publication 800-57 with + the upper limit specified by RFC4419. Pointed out by Peter Backes, ok + djm@. + +20131009 + - (djm) [openbsd-compat/arc4random.c openbsd-compat/chacha_private.h] Pull + in OpenBSD implementation of arc4random, shortly to replace the existing + bsd-arc4random.c + - (djm) [openbsd-compat/Makefile.in openbsd-compat/arc4random.c] + [openbsd-compat/bsd-arc4random.c] Replace old RC4-based arc4random + implementation with recent OpenBSD's ChaCha-based PRNG. ok dtucker@, + tested tim@ + +20130922 + - (dtucker) [platform.c platform.h sshd.c] bz#2156: restore Linux oom_adj + setting when handling SIGHUP to maintain behaviour over retart. Patch + from Matthew Ife. + +20130918 + - (dtucker) [sshd_config] Trailing whitespace; from jstjohn at purdue edu. + +20130914 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/08/22 19:02:21 + [sshd.c] + Stir PRNG after post-accept fork. The child gets a different PRNG state + anyway via rexec and explicit privsep reseeds, but it's good to be sure. + ok markus@ + - mikeb@cvs.openbsd.org 2013/08/28 12:34:27 + [ssh-keygen.c] + improve batch processing a bit by making use of the quite flag a bit + more often and exit with a non zero code if asked to find a hostname + in a known_hosts file and it wasn't there; + originally from reyk@, ok djm + - djm@cvs.openbsd.org 2013/08/31 00:13:54 + [sftp.c] + make ^w match ksh behaviour (delete previous word instead of entire line) + - deraadt@cvs.openbsd.org 2013/09/02 22:00:34 + [ssh-keygen.c sshconnect1.c sshd.c] + All the instances of arc4random_stir() are bogus, since arc4random() + does this itself, inside itself, and has for a very long time.. Actually, + this was probably reducing the entropy available. + ok djm + ID SYNC ONLY for portable; we don't trust other arc4random implementations + to do this right. + - sthen@cvs.openbsd.org 2013/09/07 13:53:11 + [sshd_config] + Remove commented-out kerberos/gssapi config options from sample config, + kerberos support is currently not enabled in ssh in OpenBSD. Discussed with + various people; ok deraadt@ + ID SYNC ONLY for portable; kerberos/gssapi is still pretty popular + - djm@cvs.openbsd.org 2013/09/12 01:41:12 + [clientloop.c] + fix connection crash when sending break (~B) on ControlPersist'd session; + ok dtucker@ + - djm@cvs.openbsd.org 2013/09/13 06:54:34 + [channels.c] + avoid unaligned access in code that reused a buffer to send a + struct in_addr in a reply; simpler just use use buffer_put_int(); + from portable; spotted by and ok dtucker@ + +20130828 + - (djm) [openbsd-compat/bsd-snprintf.c] teach our local snprintf code the + 'j' (intmax_t/uintmax_t) and 'z' (size_t/ssize_t) conversions in case we + start to use them in the future. + - (djm) [openbsd-compat/bsd-snprintf.c] #ifdef noytet for intmax_t bits + until we have configure support. + +20130821 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/08/06 23:03:49 + [sftp.c] + fix some whitespace at EOL + make list of commands an enum rather than a long list of defines + add -a to usage() + - djm@cvs.openbsd.org 2013/08/06 23:05:01 [sftp.1] - typo, fix from Laurent Gautrot - -20110805 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/06/23 23:35:42 - [monitor.c] - ignore EINTR errors from poll() - - tedu@cvs.openbsd.org 2011/07/06 18:09:21 - [authfd.c] - bzero the agent address. the kernel was for a while very cranky about - these things. evne though that's fixed, always good to initialize - memory. ok deraadt djm - - djm@cvs.openbsd.org 2011/07/29 14:42:45 - [sandbox-systrace.c] - fail open(2) with EPERM rather than SIGKILLing the whole process. libc - will call open() to do strerror() when NLS is enabled; - feedback and ok markus@ - - markus@cvs.openbsd.org 2011/08/01 19:18:15 - [gss-serv.c] - prevent post-auth resource exhaustion (int overflow leading to 4GB malloc); - report Adam Zabrock; ok djm@, deraadt@ - - djm@cvs.openbsd.org 2011/08/02 01:22:11 - [mac.c myproposal.h ssh.1 ssh_config.5 sshd.8 sshd_config.5] - Add new SHA256 and SHA512 based HMAC modes from - http://www.ietf.org/id/draft-dbider-sha2-mac-for-ssh-02.txt - Patch from mdb AT juniper.net; feedback and ok markus@ - - djm@cvs.openbsd.org 2011/08/02 23:13:01 + document top-level -a option (the -a option to 'get' was already + documented) + - djm@cvs.openbsd.org 2013/08/06 23:06:01 + [servconf.c] + add cast to avoid format warning; from portable + - jmc@cvs.openbsd.org 2013/08/07 06:24:51 + [sftp.1 sftp.c] + sort -a; + - djm@cvs.openbsd.org 2013/08/08 04:52:04 + [sftp.c] + fix two year old regression: symlinking a file would incorrectly + canonicalise the target path. bz#2129 report from delphij AT freebsd.org + - djm@cvs.openbsd.org 2013/08/08 05:04:03 + [sftp-client.c sftp-client.h sftp.c] + add a "-l" flag for the rename command to force it to use the silly + standard SSH_FXP_RENAME command instead of the POSIX-rename- like + posix-rename@openssh.com extension. + + intended for use in regress tests, so no documentation. + - djm@cvs.openbsd.org 2013/08/09 03:37:25 + [sftp.c] + do getopt parsing for all sftp commands (with an empty optstring for + commands without arguments) to ensure consistent behaviour + - djm@cvs.openbsd.org 2013/08/09 03:39:13 + [sftp-client.c] + two problems found by a to-be-committed regress test: 1) msg_id was not + being initialised so was starting at a random value from the heap + (harmless, but confusing). 2) some error conditions were not being + propagated back to the caller + - djm@cvs.openbsd.org 2013/08/09 03:56:42 + [sftp.c] + enable ctrl-left-arrow and ctrl-right-arrow to move forward/back a word; + matching ksh's relatively recent change. + - djm@cvs.openbsd.org 2013/08/13 18:32:08 + [ssh-keygen.c] + typo in error message; from Stephan Rickauer + - djm@cvs.openbsd.org 2013/08/13 18:33:08 + [ssh-keygen.c] + another of the same typo + - jmc@cvs.openbsd.org 2013/08/14 08:39:27 + [scp.1 ssh.1] + some Bx/Ox conversion; + From: Jan Stary + - djm@cvs.openbsd.org 2013/08/20 00:11:38 + [readconf.c readconf.h ssh_config.5 sshconnect.c] + Add a ssh_config ProxyUseFDPass option that supports the use of + ProxyCommands that establish a connection and then pass a connected + file descriptor back to ssh(1). This allows the ProxyCommand to exit + rather than have to shuffle data back and forth and enables ssh to use + getpeername, etc. to obtain address information just like it does with + regular directly-connected sockets. ok markus@ + - jmc@cvs.openbsd.org 2013/08/20 06:56:07 + [ssh.1 ssh_config.5] + some proxyusefdpass tweaks; + +20130808 + - (dtucker) [regress/Makefile regress/test-exec.sh] Don't try to use test -nt + since some platforms (eg really old FreeBSD) don't have it. Instead, + run "make clean" before a complete regress run. ok djm. + - (dtucker) [misc.c] Fall back to time(2) at runtime if clock_gettime( + CLOCK_MONOTONIC...) fails. Some older versions of RHEL have the + CLOCK_MONOTONIC define but don't actually support it. Found and tested + by Kevin Brott, ok djm. + - (dtucker) [misc.c] Remove define added for fallback testing that was + mistakenly included in the previous commit. + - (dtucker) [regress/Makefile regress/test-exec.sh] Roll back the -nt + removal. The "make clean" removes modpipe which is built by the top-level + directory before running the tests. Spotted by tim@ + - (djm) Release 6.3p1 + +20130804 + - (dtucker) [auth-krb5.c configure.ac openbsd-compat/bsd-misc.h] Add support + for building with older Heimdal versions. ok djm. + +20130801 + - (djm) [channels.c channels.h] bz#2135: On Solaris, isatty() on a non- + blocking connecting socket will clear any stored errno that might + otherwise have been retrievable via getsockopt(). A hack to limit writes + to TTYs on AIX was triggering this. Since only AIX needs the hack, wrap + it in an #ifdef. Diagnosis and patch from Ivo Raisr. + - (djm) [sshlogin.h] Fix prototype merge botch from 2006; bz#2134 + +20130725 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/07/20 22:20:42 + [krl.c] + fix verification error in (as-yet usused) KRL signature checking path + - djm@cvs.openbsd.org 2013/07/22 05:00:17 + [umac.c] + make MAC key, data to be hashed and nonce for final hash const; + checked with -Wcast-qual + - djm@cvs.openbsd.org 2013/07/22 12:20:02 + [umac.h] + oops, forgot to commit corresponding header change; + spotted by jsg and jasper + - djm@cvs.openbsd.org 2013/07/25 00:29:10 + [ssh.c] + daemonise backgrounded (ControlPersist'ed) multiplexing master to ensure + it is fully detached from its controlling terminal. based on debugging + - djm@cvs.openbsd.org 2013/07/25 00:56:52 + [sftp-client.c sftp-client.h sftp.1 sftp.c] + sftp support for resuming partial downloads; patch mostly by Loganaden + Velvindron/AfriNIC with some tweaks by me; feedback and ok dtucker@ + "Just be careful" deraadt@ + - djm@cvs.openbsd.org 2013/07/25 00:57:37 [version.h] - crank now, release later - - djm@cvs.openbsd.org 2011/08/02 23:15:03 + openssh-6.3 for release + - dtucker@cvs.openbsd.org 2013/05/30 20:12:32 + [regress/test-exec.sh] + use ssh and sshd as testdata since it needs to be >256k for the rekey test + - dtucker@cvs.openbsd.org 2013/06/10 21:56:43 + [regress/forwarding.sh] + Add test for forward config parsing + - djm@cvs.openbsd.org 2013/06/21 02:26:26 + [regress/sftp-cmds.sh regress/test-exec.sh] + unbreak sftp-cmds for renamed test data (s/ls/data/) + - (tim) [sftp-client.c] Use of a gcc extension trips up native compilers on + Solaris and UnixWare. Feedback and OK djm@ + - (tim) [regress/forwarding.sh] Fix for building outside source tree. + +20130720 + - (djm) OpenBSD CVS Sync + - markus@cvs.openbsd.org 2013/07/19 07:37:48 + [auth.h kex.h kexdhs.c kexecdhs.c kexgexs.c monitor.c servconf.c] + [servconf.h session.c sshd.c sshd_config.5] + add ssh-agent(1) support to sshd(8); allows encrypted hostkeys, + or hostkeys on smartcards; most of the work by Zev Weiss; bz #1974 + ok djm@ + - djm@cvs.openbsd.org 2013/07/20 01:43:46 + [umac.c] + use a union to ensure correct alignment; ok deraadt + - djm@cvs.openbsd.org 2013/07/20 01:44:37 + [ssh-keygen.c ssh.c] + More useful error message on missing current user in /etc/passwd + - djm@cvs.openbsd.org 2013/07/20 01:50:20 + [ssh-agent.c] + call cleanup_handler on SIGINT when in debug mode to ensure sockets + are cleaned up on manual exit; bz#2120 + - djm@cvs.openbsd.org 2013/07/20 01:55:13 + [auth-krb5.c gss-serv-krb5.c gss-serv.c] + fix kerberos/GSSAPI deprecation warnings and linking; "looks okay" millert@ + +20130718 + - (djm) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2013/06/10 19:19:44 + [readconf.c] + revert 1.203 while we investigate crashes reported by okan@ + - guenther@cvs.openbsd.org 2013/06/17 04:48:42 + [scp.c] + Handle time_t values as long long's when formatting them and when + parsing them from remote servers. + Improve error checking in parsing of 'T' lines. + ok dtucker@ deraadt@ + - markus@cvs.openbsd.org 2013/06/20 19:15:06 + [krl.c] + don't leak the rdata blob on errors; ok djm@ + - djm@cvs.openbsd.org 2013/06/21 00:34:49 + [auth-rsa.c auth.h auth2-hostbased.c auth2-pubkey.c monitor.c] + for hostbased authentication, print the client host and user on + the auth success/failure line; bz#2064, ok dtucker@ + - djm@cvs.openbsd.org 2013/06/21 00:37:49 + [ssh_config.5] + explicitly mention that IdentitiesOnly can be used with IdentityFile + to control which keys are offered from an agent. + - djm@cvs.openbsd.org 2013/06/21 05:42:32 + [dh.c] + sprinkle in some error() to explain moduli(5) parse failures + - djm@cvs.openbsd.org 2013/06/21 05:43:10 + [scp.c] + make this -Wsign-compare clean after time_t conversion + - djm@cvs.openbsd.org 2013/06/22 06:31:57 + [scp.c] + improved time_t overflow check suggested by guenther@ + - jmc@cvs.openbsd.org 2013/06/27 14:05:37 + [ssh-keygen.1 ssh.1 ssh_config.5 sshd.8 sshd_config.5] + do not use Sx for sections outwith the man page - ingo informs me that + stuff like html will render with broken links; + issue reported by Eric S. Raymond, via djm + - markus@cvs.openbsd.org 2013/07/02 12:31:43 + [dh.c] + remove extra whitespace + - djm@cvs.openbsd.org 2013/07/12 00:19:59 + [auth-options.c auth-rsa.c bufaux.c buffer.h channels.c hostfile.c] + [hostfile.h mux.c packet.c packet.h roaming_common.c serverloop.c] + fix pointer-signedness warnings from clang/llvm-3.3; "seems nice" deraadt@ + - djm@cvs.openbsd.org 2013/07/12 00:20:00 + [sftp.c ssh-keygen.c ssh-pkcs11.c] + fix pointer-signedness warnings from clang/llvm-3.3; "seems nice" deraadt@ + - djm@cvs.openbsd.org 2013/07/12 00:43:50 + [misc.c] + in ssh_gai_strerror() don't fallback to strerror for EAI_SYSTEM when + errno == 0. Avoids confusing error message in some broken resolver + cases. bz#2122 patch from plautrba AT redhat.com; ok dtucker + - djm@cvs.openbsd.org 2013/07/12 05:42:03 + [ssh-keygen.c] + do_print_resource_record() can never be called with a NULL filename, so + don't attempt (and bungle) asking for one if it has not been specified + bz#2127 ok dtucker@ + - djm@cvs.openbsd.org 2013/07/12 05:48:55 [ssh.c] - typo in comment + set TCP nodelay for connections started with -N; bz#2124 ok dtucker@ + - schwarze@cvs.openbsd.org 2013/07/16 00:07:52 + [scp.1 sftp-server.8 ssh-keyscan.1 ssh-keysign.8 ssh-pkcs11-helper.8] + use .Mt for email addresses; from Jan Stary <hans at stare dot cz>; ok jmc@ + - djm@cvs.openbsd.org 2013/07/18 01:12:26 + [ssh.1] + be more exact wrt perms for ~/.ssh/config; bz#2078 -20110624 - - (djm) [configure.ac Makefile.in sandbox-darwin.c] Add a sandbox for - Darwin/OS X using sandbox_init() + setrlimit(); feedback and testing - markus@ +20130702 + - (dtucker) [contrib/cygwin/README contrib/cygwin/ssh-host-config + contrib/cygwin/ssh-user-config] Modernizes and improve readability of + the Cygwin README file (which hasn't been updated for ages), drop + unsupported OSes from the ssh-host-config help text, and drop an + unneeded option from ssh-user-config. Patch from vinschen at redhat com. -20110623 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/06/22 21:47:28 - [servconf.c] - reuse the multistate option arrays to pretty-print options for "sshd -T" - - djm@cvs.openbsd.org 2011/06/22 21:57:01 - [servconf.c servconf.h sshd.c sshd_config.5] - [configure.ac Makefile.in] - introduce sandboxing of the pre-auth privsep child using systrace(4). - - This introduces a new "UsePrivilegeSeparation=sandbox" option for - sshd_config that applies mandatory restrictions on the syscalls the - privsep child can perform. This prevents a compromised privsep child - from being used to attack other hosts (by opening sockets and proxying) - or probing local kernel attack surface. - - The sandbox is implemented using systrace(4) in unsupervised "fast-path" - mode, where a list of permitted syscalls is supplied. Any syscall not - on the list results in SIGKILL being sent to the privsep child. Note - that this requires a kernel with the new SYSTR_POLICY_KILL option. - - UsePrivilegeSeparation=sandbox will become the default in the future - so please start testing it now. - - feedback dtucker@; ok markus@ - - djm@cvs.openbsd.org 2011/06/22 22:08:42 - [channels.c channels.h clientloop.c clientloop.h mux.c ssh.c] - hook up a channel confirm callback to warn the user then requested X11 - forwarding was refused by the server; ok markus@ - - djm@cvs.openbsd.org 2011/06/23 09:34:13 - [sshd.c ssh-sandbox.h sandbox.h sandbox-rlimit.c sandbox-systrace.c] - [sandbox-null.c] - rename sandbox.h => ssh-sandbox.h to make things easier for portable - - (djm) [sandbox-null.c] Dummy sandbox for platforms that don't support - setrlimit(2) - -20110620 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/06/04 00:10:26 - [ssh_config.5] - explain IdentifyFile's semantics a little better, prompted by bz#1898 - ok dtucker jmc - - markus@cvs.openbsd.org 2011/06/14 22:49:18 - [authfile.c] - make sure key_parse_public/private_rsa1() no longer consumes its input - buffer. fixes ssh-add for passphrase-protected ssh1-keys; - noted by naddy@; ok djm@ - - djm@cvs.openbsd.org 2011/06/17 21:44:31 - [log.c log.h monitor.c monitor.h monitor_wrap.c monitor_wrap.h sshd.c] - make the pre-auth privsep slave log via a socketpair shared with the - monitor rather than /var/empty/dev/log; ok dtucker@ deraadt@ markus@ - - djm@cvs.openbsd.org 2011/06/17 21:46:16 - [sftp-server.c] - the protocol version should be unsigned; bz#1913 reported by mb AT - smartftp.com - - djm@cvs.openbsd.org 2011/06/17 21:47:35 - [servconf.c] - factor out multi-choice option parsing into a parse_multistate label - and some support structures; ok dtucker@ - - djm@cvs.openbsd.org 2011/06/17 21:57:25 - [clientloop.c] - setproctitle for a mux master that has been gracefully stopped; - bz#1911 from Bert.Wesarg AT googlemail.com - -20110603 - - (dtucker) [README version.h contrib/caldera/openssh.spec - contrib/redhat/openssh.spec contrib/suse/openssh.spec] Pull the version - bumps from the 5.8p2 branch into HEAD. ok djm. - - (tim) [configure.ac defines.h] Run test program to detect system mail - directory. Add --with-maildir option to override. Fixed OpenServer 6 - getting it wrong. Fixed many systems having MAIL=/var/mail//username - ok dtucker - - (dtucker) [monitor.c] Remove the !HAVE_SOCKETPAIR case. We use socketpair - unconditionally in other places and the survey data we have does not show - any systems that use it. "nuke it" djm@ - - (djm) [configure.ac] enable setproctitle emulation for OS X +20130610 - (djm) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/06/03 00:54:38 - [ssh.c] - bz#1883 - setproctitle() to identify mux master; patch from Bert.Wesarg - AT googlemail.com; ok dtucker@ - NB. includes additional portability code to enable setproctitle emulation - on platforms that don't support it. - - dtucker@cvs.openbsd.org 2011/06/03 01:37:40 + - dtucker@cvs.openbsd.org 2013/06/07 15:37:52 + [channels.c channels.h clientloop.c] + Add an "ABANDONED" channel state and use for mux sessions that are + disconnected via the ~. escape sequence. Channels in this state will + be able to close if the server responds, but do not count as active channels. + This means that if you ~. all of the mux clients when using ControlPersist + on a broken network, the backgrounded mux master will exit when the + Control Persist time expires rather than hanging around indefinitely. + bz#1917, also reported and tested by tedu@. ok djm@ markus@. + - (dtucker) [Makefile.in configure.ac fixalgorithms] Remove unsupported + algorithms (Ciphers, MACs and HostKeyAlgorithms) from man pages. + - (dtucker) [myproposal.h] Do not advertise AES GSM ciphers if we don't have + the required OpenSSL support. Patch from naddy at freebsd. + - (dtucker) [myproposal.h] Make the conditional algorithm support consistent + and add some comments so it's clear what goes where. + +20130605 + - (dtucker) [myproposal.h] Enable sha256 kex methods based on the presence of + the necessary functions, not from the openssl version. + - (dtucker) [contrib/ssh-copy-id] bz#2117: Use portable operator in test. + Patch from cjwatson at debian. + - (dtucker) [regress/forwarding.sh] For (as yet unknown) reason, the + forwarding test is extremely slow copying data on some machines so switch + back to copying the much smaller ls binary until we can figure out why + this is. + - (dtucker) [Makefile.in] append $CFLAGS to compiler options when building + modpipe in case there's anything in there we need. + - (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2013/06/02 21:01:51 + [channels.h] + typo in comment + - dtucker@cvs.openbsd.org 2013/06/02 23:36:29 + [clientloop.h clientloop.c mux.c] + No need for the mux cleanup callback to be visible so restore it to static + and call it through the detach_user function pointer. ok djm@ + - dtucker@cvs.openbsd.org 2013/06/03 00:03:18 + [mac.c] + force the MAC output to be 64-bit aligned so umac won't see unaligned + accesses on strict-alignment architectures. bz#2101, patch from + tomas.kuthan at oracle.com, ok djm@ + - dtucker@cvs.openbsd.org 2013/06/04 19:12:23 + [scp.c] + use MAXPATHLEN for buffer size instead of fixed value. ok markus + - dtucker@cvs.openbsd.org 2013/06/04 20:42:36 + [sftp.c] + Make sftp's libedit interface marginally multibyte aware by building up + the quoted string by character instead of by byte. Prevents failures + when linked against a libedit built with wide character support (bz#1990). + "looks ok" djm + - dtucker@cvs.openbsd.org 2013/06/05 02:07:29 + [mux.c] + fix leaks in mux error paths, from Zhenbo Xu, found by Melton. bz#1967, + ok djm + - dtucker@cvs.openbsd.org 2013/06/05 02:27:50 + [sshd.c] + When running sshd -D, close stderr unless we have explicitly requesting + logging to stderr. From james.hunt at ubuntu.com via bz#1976, djm's patch + so, err, ok dtucker. + - dtucker@cvs.openbsd.org 2013/06/05 12:52:38 + [sshconnect2.c] + Fix memory leaks found by Zhenbo Xu and the Melton tool. bz#1967, ok djm + - dtucker@cvs.openbsd.org 2013/06/05 22:00:28 + [readconf.c] + plug another memleak. bz#1967, from Zhenbo Xu, detected by Melton, ok djm + - (dtucker) [configure.ac sftp.c openbsd-compat/openbsd-compat.h] Cater for + platforms that don't have multibyte character support (specifically, + mblen). + +20130602 + - (tim) [Makefile.in] Make Solaris, UnixWare, & OpenServer linkers happy + linking regress/modpipe. + - (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2013/06/02 13:33:05 + [progressmeter.c] + Add misc.h for monotime prototype. (ID sync only). + - dtucker@cvs.openbsd.org 2013/06/02 13:35:58 [ssh-agent.c] - Check current parent process ID against saved one to determine if the parent - has exited, rather than attempting to send a zero signal, since the latter - won't work if the parent has changed privs. bz#1905, patch from Daniel Kahn - Gillmor, ok djm@ - - dtucker@cvs.openbsd.org 2011/05/31 02:01:58 - [regress/dynamic-forward.sh] - back out revs 1.6 and 1.5 since it's not reliable - - dtucker@cvs.openbsd.org 2011/05/31 02:03:34 - [regress/dynamic-forward.sh] - work around startup and teardown races; caught by deraadt - - dtucker@cvs.openbsd.org 2011/06/03 00:29:52 - [regress/dynamic-forward.sh] - Retry establishing the port forwarding after a small delay, should make - the tests less flaky when the previous test is slow to shut down and free - up the port. - - (tim) [regress/cfgmatch.sh] Build/test out of tree fix. - -20110529 - - (djm) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/05/23 03:30:07 - [auth-rsa.c auth.c auth.h auth2-pubkey.c monitor.c monitor_wrap.c] - [pathnames.h servconf.c servconf.h sshd.8 sshd_config sshd_config.5] - allow AuthorizedKeysFile to specify multiple files, separated by spaces. - Bring back authorized_keys2 as a default search path (to avoid breaking - existing users of this file), but override this in sshd_config so it will - be no longer used on fresh installs. Maybe in 2015 we can remove it - entierly :) - - feedback and ok markus@ dtucker@ - - djm@cvs.openbsd.org 2011/05/23 03:33:38 - [auth.c] - make secure_filename() spam debug logs less - - djm@cvs.openbsd.org 2011/05/23 03:52:55 - [sshconnect.c] - remove extra newline - - jmc@cvs.openbsd.org 2011/05/23 07:10:21 - [sshd.8 sshd_config.5] - tweak previous; ok djm - - djm@cvs.openbsd.org 2011/05/23 07:24:57 - [authfile.c] - read in key comments for v.2 keys (though note that these are not - passed over the agent protocol); bz#439, based on patch from binder - AT arago.de; ok markus@ - - djm@cvs.openbsd.org 2011/05/24 07:15:47 - [readconf.c readconf.h ssh.c ssh_config.5 sshconnect.c sshconnect2.c] - Remove undocumented legacy options UserKnownHostsFile2 and - GlobalKnownHostsFile2 by making UserKnownHostsFile/GlobalKnownHostsFile - accept multiple paths per line and making their defaults include - known_hosts2; ok markus - - djm@cvs.openbsd.org 2011/05/23 03:31:31 - [regress/cfgmatch.sh] - include testing of multiple/overridden AuthorizedKeysFiles - refactor to simply daemon start/stop and get rid of racy constructs - -20110520 - - (djm) [session.c] call setexeccon() before executing passwd for pw - changes; bz#1891 reported by jchadima AT redhat.com; ok dtucker@ - - (djm) [aclocal.m4 configure.ac] since gcc-4.x ignores all -Wno-options - options, we should corresponding -W-option when trying to determine - whether it is accepted. Also includes a warning fix on the program - fragment uses (bad main() return type). - bz#1900 and bz#1901 reported by g.esp AT free.fr; ok dtucker@ - - (djm) [servconf.c] remove leftover droppings of AuthorizedKeysFile2 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/05/15 08:09:01 - [authfd.c monitor.c serverloop.c] - use FD_CLOEXEC consistently; patch from zion AT x96.org - - djm@cvs.openbsd.org 2011/05/17 07:13:31 + Make parent_alive_interval time_t to avoid signed/unsigned comparison + - (dtucker) [configure.ac] sys/un.h needs sys/socket.h on some platforms + to prevent noise from configure. Patch from Nathan Osman. (bz#2114). + - (dtucker) [configure.ac] bz#2111: don't try to use lastlog on Android. + Patch from Nathan Osman. + - (tim) [configure.ac regress/Makefile] With rev 1.47 of test-exec.sh we + need a shell that can handle "[ file1 -nt file2 ]". Rather than keep + dealing with shell portability issues in regression tests, we let + configure find us a capable shell on those platforms with an old /bin/sh. + - (tim) [aclocal.m4] Enhance OSSH_CHECK_CFLAG_COMPILE to check stderr. + feedback and ok dtucker + - (tim) [regress/sftp-chroot.sh] skip if no sudo. ok dtucker + - (dtucker) [configure.ac] Some platforms need sys/types.h before sys/un.h. + - (dtucker) [configure.ac] Some other platforms need sys/types.h before + sys/socket.h. + +20130601 + - (dtucker) [configure.ac openbsd-compat/xcrypt.c] bz#2112: fall back to + using openssl's DES_crypt function on platorms that don't have a native + one, eg Android. Based on a patch from Nathan Osman. + - (dtucker) [configure.ac defines.h] Test for fd_mask, howmany and NFDBITS + rather than trying to enumerate the plaforms that don't have them. + Based on a patch from Nathan Osman, with help from tim@. + - (dtucker) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/05/17 00:13:13 + [xmalloc.h cipher.c sftp-glob.c ssh-keyscan.c ssh.c sftp-common.c + ssh-ecdsa.c auth2-chall.c compat.c readconf.c kexgexs.c monitor.c + gss-genr.c cipher-3des1.c kex.c monitor_wrap.c ssh-pkcs11-client.c + auth-options.c rsa.c auth2-pubkey.c sftp.c hostfile.c auth2.c + servconf.c auth.c authfile.c xmalloc.c uuencode.c sftp-client.c + auth2-gss.c sftp-server.c bufaux.c mac.c session.c jpake.c kexgexc.c + sshconnect.c auth-chall.c auth2-passwd.c sshconnect1.c buffer.c + kexecdhs.c kexdhs.c ssh-rsa.c auth1.c ssh-pkcs11.c auth2-kbdint.c + kexdhc.c sshd.c umac.c ssh-dss.c auth2-jpake.c bufbn.c clientloop.c + monitor_mm.c scp.c roaming_client.c serverloop.c key.c auth-rsa.c + ssh-pkcs11-helper.c ssh-keysign.c ssh-keygen.c match.c channels.c + sshconnect2.c addrmatch.c mux.c canohost.c kexecdhc.c schnorr.c + ssh-add.c misc.c auth2-hostbased.c ssh-agent.c bufec.c groupaccess.c + dns.c packet.c readpass.c authfd.c moduli.c] + bye, bye xfree(); ok markus@ + - djm@cvs.openbsd.org 2013/05/19 02:38:28 + [auth2-pubkey.c] + fix failure to recognise cert-authority keys if a key of a different type + appeared in authorized_keys before it; ok markus@ + - djm@cvs.openbsd.org 2013/05/19 02:42:42 + [auth.h auth.c key.c monitor.c auth-rsa.c auth2.c auth1.c key.h] + Standardise logging of supplemental information during userauth. Keys + and ruser is now logged in the auth success/failure message alongside + the local username, remote host/port and protocol in use. Certificates + contents and CA are logged too. + Pushing all logging onto a single line simplifies log analysis as it is + no longer necessary to relate information scattered across multiple log + entries. "I like it" markus@ + - dtucker@cvs.openbsd.org 2013/05/31 12:28:10 + [ssh-agent.c] + Use time_t where appropriate. ok djm + - dtucker@cvs.openbsd.org 2013/06/01 13:15:52 + [ssh-agent.c clientloop.c misc.h packet.c progressmeter.c misc.c + channels.c sandbox-systrace.c] + Use clock_gettime(CLOCK_MONOTONIC ...) for ssh timers so that things like + keepalives and rekeying will work properly over clock steps. Suggested by + markus@, "looks good" djm@. + - dtucker@cvs.openbsd.org 2013/06/01 20:59:25 + [scp.c sftp-client.c] + Replace S_IWRITE, which isn't standardized, with S_IWUSR, which is. Patch + from Nathan Osman via bz#2085. ok deraadt. + - dtucker@cvs.openbsd.org 2013/06/01 22:34:50 + [sftp-client.c] + Update progressmeter when data is acked, not when it's sent. bz#2108, from + Debian via Colin Watson, ok djm@ + - (dtucker) [M auth-chall.c auth-krb5.c auth-pam.c cipher-aes.c cipher-ctr.c + groupaccess.c loginrec.c monitor.c monitor_wrap.c session.c sshd.c + sshlogin.c uidswap.c openbsd-compat/bsd-cygwin_util.c + openbsd-compat/getrrsetbyname-ldns.c openbsd-compat/port-aix.c + openbsd-compat/port-linux.c] Replace portable-specific instances of xfree + with the equivalent calls to free. + - (dtucker) [configure.ac misc.c] Look for clock_gettime in librt and fall + back to time(NULL) if we can't find it anywhere. + - (dtucker) [sandbox-seccomp-filter.c] Allow clock_gettimeofday. + +20130529 + - (dtucker) [configure.ac openbsd-compat/bsd-misc.h] bz#2087: Add a null + implementation of endgrent for platforms that don't have it (eg Android). + Loosely based on a patch from Nathan Osman, ok djm + + 20130517 + - (dtucker) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/03/07 00:20:34 + [regress/proxy-connect.sh] + repeat test with a style appended to the username + - dtucker@cvs.openbsd.org 2013/03/23 11:09:43 + [regress/test-exec.sh] + Only regenerate host keys if they don't exist or if ssh-keygen has changed + since they were. Reduces test runtime by 5-30% depending on machine + speed. + - dtucker@cvs.openbsd.org 2013/04/06 06:00:22 + [regress/rekey.sh regress/test-exec.sh regress/integrity.sh + regress/multiplex.sh Makefile regress/cfgmatch.sh] + Split the regress log into 3 parts: the debug output from ssh, the debug + log from sshd and the output from the client command (ssh, scp or sftp). + Somewhat functional now, will become more useful when ssh/sshd -E is added. + - dtucker@cvs.openbsd.org 2013/04/07 02:16:03 + [regress/Makefile regress/rekey.sh regress/integrity.sh + regress/sshd-log-wrapper.sh regress/forwarding.sh regress/test-exec.sh] + use -E option for ssh and sshd to write debuging logs to ssh{,d}.log and + save the output from any failing tests. If a test fails the debug output + from ssh and sshd for the failing tests (and only the failing tests) should + be available in failed-ssh{,d}.log. + - djm@cvs.openbsd.org 2013/04/18 02:46:12 + [regress/Makefile regress/sftp-chroot.sh] + test sshd ChrootDirectory+internal-sftp; feedback & ok dtucker@ + - dtucker@cvs.openbsd.org 2013/04/22 07:23:08 + [regress/multiplex.sh] + Write mux master logs to regress.log instead of ssh.log to keep separate + - djm@cvs.openbsd.org 2013/05/10 03:46:14 + [regress/modpipe.c] + sync some portability changes from portable OpenSSH (id sync only) + - dtucker@cvs.openbsd.org 2013/05/16 02:10:35 + [regress/rekey.sh] + Add test for time-based rekeying + - dtucker@cvs.openbsd.org 2013/05/16 03:33:30 + [regress/rekey.sh] + test rekeying when there's no data being transferred + - dtucker@cvs.openbsd.org 2013/05/16 04:26:10 + [regress/rekey.sh] + add server-side rekey test + - dtucker@cvs.openbsd.org 2013/05/16 05:48:31 + [regress/rekey.sh] + add tests for RekeyLimit parsing + - dtucker@cvs.openbsd.org 2013/05/17 00:37:40 + [regress/agent.sh regress/keytype.sh regress/cfgmatch.sh + regress/forcecommand.sh regress/proto-version.sh regress/test-exec.sh + regress/cipher-speed.sh regress/cert-hostkey.sh regress/cert-userkey.sh + regress/ssh-com.sh] + replace 'echo -n' with 'printf' since it's more portable + also remove "echon" hack. + - dtucker@cvs.openbsd.org 2013/05/17 01:16:09 + [regress/agent-timeout.sh] + Pull back some portability changes from -portable: + - TIMEOUT is a read-only variable in some shells + - not all greps have -q so redirect to /dev/null instead. + (ID sync only) + - dtucker@cvs.openbsd.org 2013/05/17 01:32:11 + [regress/integrity.sh] + don't print output from ssh before getting it (it's available in ssh.log) + - dtucker@cvs.openbsd.org 2013/05/17 04:29:14 + [regress/sftp.sh regress/putty-ciphers.sh regress/cipher-speed.sh + regress/test-exec.sh regress/sftp-batch.sh regress/dynamic-forward.sh + regress/putty-transfer.sh regress/conch-ciphers.sh regress/sftp-cmds.sh + regress/scp.sh regress/ssh-com-sftp.sh regress/rekey.sh + regress/putty-kex.sh regress/stderr-data.sh regress/stderr-after-eof.sh + regress/sftp-badcmds.sh regress/reexec.sh regress/ssh-com-client.sh + regress/sftp-chroot.sh regress/forwarding.sh regress/transfer.sh + regress/multiplex.sh] + Move the setting of DATA and COPY into test-exec.sh + - dtucker@cvs.openbsd.org 2013/05/17 10:16:26 + [regress/try-ciphers.sh] + use expr for math to keep diffs vs portable down + (id sync only) + - dtucker@cvs.openbsd.org 2013/05/17 10:23:52 + [regress/login-timeout.sh regress/reexec.sh regress/test-exec.sh] + Use SUDO when cat'ing pid files and running the sshd log wrapper so that + it works with a restrictive umask and the pid files are not world readable. + Changes from -portable. (id sync only) + - dtucker@cvs.openbsd.org 2013/05/17 10:24:48 + [regress/localcommand.sh] + use backticks for portability. (id sync only) + - dtucker@cvs.openbsd.org 2013/05/17 10:26:26 + [regress/sftp-badcmds.sh] + remove unused BATCH variable. (id sync only) + - dtucker@cvs.openbsd.org 2013/05/17 10:28:11 + [regress/sftp.sh] + only compare copied data if sftp succeeds. from portable (id sync only) + - dtucker@cvs.openbsd.org 2013/05/17 10:30:07 + [regress/test-exec.sh] + wait a bit longer for startup and use case for absolute path. + from portable (id sync only) + - dtucker@cvs.openbsd.org 2013/05/17 10:33:09 + [regress/agent-getpeereid.sh] + don't redirect stdout from sudo. from portable (id sync only) + - dtucker@cvs.openbsd.org 2013/05/17 10:34:30 + [regress/portnum.sh] + use a more portable negated if structure. from portable (id sync only) + - dtucker@cvs.openbsd.org 2013/05/17 10:35:43 + [regress/scp.sh] + use a file extention that's not special on some platforms. from portable + (id sync only) + - (dtucker) [regress/bsd.regress.mk] Remove unused file. We've never used it + in portable and it's long gone in openbsd. + - (dtucker) [regress/integrity.sh]. Force fixed Diffie-Hellman key exchange + methods. When the openssl version doesn't support ECDH then next one on + the list is DH group exchange, but that causes a bit more traffic which can + mean that the tests flip bits in the initial exchange rather than the MACed + traffic and we get different errors to what the tests look for. + - (dtucker) [openbsd-compat/getopt.h] Remove unneeded bits. + - (dtucker) [regress/cfgmatch.sh] Resync config file setup with openbsd. + - (dtucker) [regress/agent-getpeereid.sh] Resync spaces with openbsd. + - (dtucker) [regress/integrity.sh regress/krl.sh regress/test-exec.sh] + Move the jot helper function to portable-specific part of test-exec.sh. + - (dtucker) [regress/test-exec.sh] Move the portable-specific functions + together and add a couple of missing lines from openbsd. + - (dtucker) [regress/stderr-after-eof.sh regress/test-exec.sh] Move the md5 + helper function to the portable part of test-exec.sh. + - (dtucker) [regress/runtests.sh] Remove obsolete test driver script. + - (dtucker) [regress/cfgmatch.sh] Remove unneeded sleep renderd obsolete by + rev 1.6 which calls wait. + +20130516 + - (djm) [contrib/ssh-copy-id] Fix bug that could cause "rm *" to be + executed if mktemp failed; bz#2105 ok dtucker@ + - (dtucker) OpenBSD CVS Sync + - tedu@cvs.openbsd.org 2013/04/23 17:49:45 + [misc.c] + use xasprintf instead of a series of strlcats and strdup. ok djm + - tedu@cvs.openbsd.org 2013/04/24 16:01:46 + [misc.c] + remove extra parens noticed by nicm + - dtucker@cvs.openbsd.org 2013/05/06 07:35:12 + [sftp-server.8] + Reference the version of the sftp draft we actually implement. ok djm@ + - djm@cvs.openbsd.org 2013/05/10 03:40:07 + [sshconnect2.c] + fix bzero(ptr_to_struct, sizeof(ptr_to_struct)); bz#2100 from + Colin Watson + - djm@cvs.openbsd.org 2013/05/10 04:08:01 [key.c] - fatal() if asked to generate a legacy ECDSA cert (these don't exist) - and fix the regress test that was trying to generate them :) - - djm@cvs.openbsd.org 2011/05/20 00:55:02 - [servconf.c] - the options TrustedUserCAKeys, RevokedKeysFile, AuthorizedKeysFile - and AuthorizedPrincipalsFile were not being correctly applied in - Match blocks, despite being overridable there; ok dtucker@ - - dtucker@cvs.openbsd.org 2011/05/20 02:00:19 + memleak in cert_free(), wasn't actually freeing the struct; + bz#2096 from shm AT digitalsun.pl + - dtucker@cvs.openbsd.org 2013/05/10 10:13:50 + [ssh-pkcs11-helper.c] + remove unused extern optarg. ok markus@ + - dtucker@cvs.openbsd.org 2013/05/16 02:00:34 + [ssh_config sshconnect2.c packet.c readconf.h readconf.c clientloop.c + ssh_config.5 packet.h] + Add an optional second argument to RekeyLimit in the client to allow + rekeying based on elapsed time in addition to amount of traffic. + with djm@ jmc@, ok djm + - dtucker@cvs.openbsd.org 2013/05/16 04:09:14 + [sshd_config.5 servconf.c servconf.h packet.c serverloop.c monitor.c sshd_config + sshd.c] Add RekeyLimit to sshd with the same syntax as the client allowing + rekeying based on traffic volume or time. ok djm@, help & ok jmc@ for the man + page. + - djm@cvs.openbsd.org 2013/05/16 04:27:50 + [ssh_config.5 readconf.h readconf.c] + add the ability to ignore specific unrecognised ssh_config options; + bz#866; ok markus@ + - jmc@cvs.openbsd.org 2013/05/16 06:28:45 + [ssh_config.5] + put IgnoreUnknown in the right place; + - jmc@cvs.openbsd.org 2013/05/16 06:30:06 + [sshd_config.5] + oops! avoid Xr to self; + - dtucker@cvs.openbsd.org 2013/05/16 09:08:41 + [log.c scp.c sshd.c serverloop.c schnorr.c sftp.c] + Fix some "unused result" warnings found via clang and -portable. + ok markus@ + - dtucker@cvs.openbsd.org 2013/05/16 09:12:31 + [readconf.c servconf.c] + switch RekeyLimit traffic volume parsing to scan_scaled. ok djm@ + - dtucker@cvs.openbsd.org 2013/05/16 10:43:34 + [servconf.c readconf.c] + remove now-unused variables + - dtucker@cvs.openbsd.org 2013/05/16 10:44:06 [servconf.c] - Add comment documenting what should be after the preauth check. ok djm - - djm@cvs.openbsd.org 2011/05/20 03:25:45 - [monitor.c monitor_wrap.c servconf.c servconf.h] - use a macro to define which string options to copy between configs - for Match. This avoids problems caused by forgetting to keep three - code locations in perfect sync and ordering - - "this is at once beautiful and horrible" + ok dtucker@ - - djm@cvs.openbsd.org 2011/05/17 07:13:31 - [regress/cert-userkey.sh] - fatal() if asked to generate a legacy ECDSA cert (these don't exist) - and fix the regress test that was trying to generate them :) - - djm@cvs.openbsd.org 2011/05/20 02:43:36 - [cert-hostkey.sh] - another attempt to generate a v00 ECDSA key that broke the test - ID sync only - portable already had this somehow - - dtucker@cvs.openbsd.org 2011/05/20 05:19:50 - [dynamic-forward.sh] - Prevent races in dynamic forwarding test; ok djm - - dtucker@cvs.openbsd.org 2011/05/20 06:32:30 - [dynamic-forward.sh] - fix dumb error in dynamic-forward test - -20110515 + remove another now-unused variable + - (dtucker) [configure.ac readconf.c servconf.c + openbsd-compat/openbsd-compat.h] Add compat bits for scan_scaled. + +20130510 + - (dtucker) [configure.ac] Enable -Wsizeof-pointer-memaccess if the compiler + supports it. Mentioned by Colin Watson in bz#2100, ok djm. + - (dtucker) [openbsd-compat/getopt.c] Factor out portibility changes to + getopt.c. Preprocessed source is identical other than line numbers. + - (dtucker) [openbsd-compat/getopt_long.c] Import from OpenBSD. No + portability changes yet. + - (dtucker) [openbsd-compat/Makefile.in openbsd-compat/getopt.c + openbsd-compat/getopt_long.c regress/modpipe.c] Remove getopt.c, add + portability code to getopt_long.c and switch over Makefile and the ugly + hack in modpipe.c. Fixes bz#1448. + - (dtucker) [openbsd-compat/getopt.h openbsd-compat/getopt_long.c + openbsd-compat/openbsd-compat.h] pull in getopt.h from openbsd and plumb + in to use it when we're using our own getopt. + - (dtucker) [kex.c] Only include sha256 and ECC key exchange methods when the + underlying libraries support them. + - (dtucker) [configure.ac] Add -Werror to the -Qunused-arguments test so + we don't get a warning on compilers that *don't* support it. Add + -Wno-unknown-warning-option. Move both to the start of the list for + maximum noise suppression. Tested with gcc 4.6.3, gcc 2.95.4 and clang 2.9. + +20130423 + - (djm) [auth.c configure.ac misc.c monitor.c monitor_wrap.c] Support + platforms, such as Android, that lack struct passwd.pw_gecos. Report + and initial patch from Nathan Osman bz#2086; feedback tim@ ok dtucker@ - (djm) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/05/05 05:12:08 - [mux.c] - gracefully fall back when ControlPath is too large for a - sockaddr_un. ok markus@ as part of a larger diff - - dtucker@cvs.openbsd.org 2011/05/06 01:03:35 - [sshd_config] - clarify language about overriding defaults. bz#1892, from Petr Cerny - - djm@cvs.openbsd.org 2011/05/06 01:09:53 - [sftp.1] - mention that IPv6 addresses must be enclosed in square brackets; - bz#1845 - - djm@cvs.openbsd.org 2011/05/06 02:05:41 + - markus@cvs.openbsd.org 2013/03/05 20:16:09 [sshconnect2.c] - fix memory leak; bz#1849 ok dtucker@ - - djm@cvs.openbsd.org 2011/05/06 21:14:05 - [packet.c packet.h] - set traffic class for IPv6 traffic as we do for IPv4 TOS; - patch from lionel AT mamane.lu via Colin Watson in bz#1855; - ok markus@ - - djm@cvs.openbsd.org 2011/05/06 21:18:02 - [ssh.c ssh_config.5] - add a %L expansion (short-form of the local host name) for ControlPath; - sync some more expansions with LocalCommand; ok markus@ - - djm@cvs.openbsd.org 2011/05/06 21:31:38 - [readconf.c ssh_config.5] - support negated Host matching, e.g. - - Host *.example.org !c.example.org - User mekmitasdigoat - - Will match "a.example.org", "b.example.org", but not "c.example.org" + reset pubkey order on partial success; ok djm@ + - djm@cvs.openbsd.org 2013/03/06 23:35:23 + [session.c] + fatal() when ChrootDirectory specified by running without root privileges; ok markus@ - - djm@cvs.openbsd.org 2011/05/06 21:34:32 - [clientloop.c mux.c readconf.c readconf.h ssh.c ssh_config.5] - Add a RequestTTY ssh_config option to allow configuration-based - control over tty allocation (like -t/-T); ok markus@ - - djm@cvs.openbsd.org 2011/05/06 21:38:58 + - djm@cvs.openbsd.org 2013/03/06 23:36:53 + [readconf.c] + g/c unused variable (-Wunused) + - djm@cvs.openbsd.org 2013/03/07 00:19:59 + [auth2-pubkey.c monitor.c] + reconstruct the original username that was sent by the client, which may + have included a style (e.g. "root:skey") when checking public key + signatures. Fixes public key and hostbased auth when the client specified + a style; ok markus@ + - markus@cvs.openbsd.org 2013/03/07 19:27:25 + [auth.h auth2-chall.c auth2.c monitor.c sshd_config.5] + add submethod support to AuthenticationMethods; ok and freedback djm@ + - djm@cvs.openbsd.org 2013/03/08 06:32:58 [ssh.c] - fix dropping from previous diff - - djm@cvs.openbsd.org 2011/05/06 22:20:10 - [PROTOCOL.mux] - fix numbering; from bert.wesarg AT googlemail.com - - jmc@cvs.openbsd.org 2011/05/07 23:19:39 - [ssh_config.5] - - tweak previous - - come consistency fixes - ok djm - - jmc@cvs.openbsd.org 2011/05/07 23:20:25 - [ssh.1] - +.It RequestTTY - - djm@cvs.openbsd.org 2011/05/08 12:52:01 - [PROTOCOL.mux clientloop.c clientloop.h mux.c] - improve our behaviour when TTY allocation fails: if we are in - RequestTTY=auto mode (the default), then do not treat at TTY - allocation error as fatal but rather just restore the local TTY - to cooked mode and continue. This is more graceful on devices that - never allocate TTYs. - - If RequestTTY is set to "yes" or "force", then failure to allocate - a TTY is fatal. - - ok markus@ - - djm@cvs.openbsd.org 2011/05/10 05:46:46 - [authfile.c] - despam debug() logs by detecting that we are trying to load a private key - in key_try_load_public() and returning early; ok markus@ - - djm@cvs.openbsd.org 2011/05/11 04:47:06 - [auth.c auth.h auth2-pubkey.c pathnames.h servconf.c servconf.h] - remove support for authorized_keys2; it is a relic from the early days - of protocol v.2 support and has been undocumented for many years; - ok markus@ - - djm@cvs.openbsd.org 2011/05/13 00:05:36 - [authfile.c] - warn on unexpected key type in key_parse_private_type() - - (djm) [packet.c] unbreak portability #endif - -20110510 - - (dtucker) [openbsd-compat/openssl-compat.{c,h}] Bug #1882: fix - --with-ssl-engine which was broken with the change from deprecated - SSLeay_add_all_algorithms(). ok djm - -20110506 - - (dtucker) [openbsd-compat/regress/closefromtest.c] Bug #1875: add prototype - for closefrom() in test code. Report from Dan Wallis via Gentoo. - -20110505 - - (djm) [defines.h] Move up include of netinet/ip.h for IPTOS - definitions. From des AT des.no - - (djm) [Makefile.in WARNING.RNG aclocal.m4 buildpkg.sh.in configure.ac] - [entropy.c ssh-add.c ssh-agent.c ssh-keygen.c ssh-keyscan.c] - [ssh-keysign.c ssh-pkcs11-helper.c ssh-rand-helper.8 ssh-rand-helper.c] - [ssh.c ssh_prng_cmds.in sshd.c contrib/aix/buildbff.sh] - [regress/README.regress] Remove ssh-rand-helper and all its - tentacles. PRNGd seeding has been rolled into entropy.c directly. - Thanks to tim@ for testing on affected platforms. - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/03/10 02:52:57 - [auth2-gss.c auth2.c auth.h] - allow GSSAPI authentication to detect when a server-side failure causes - authentication failure and don't count such failures against MaxAuthTries; - bz#1244 from simon AT sxw.org.uk; ok markus@ before lock - - okan@cvs.openbsd.org 2011/03/15 10:36:02 - [ssh-keyscan.c] - use timerclear macro - ok djm@ - - stevesk@cvs.openbsd.org 2011/03/23 15:16:22 - [ssh-keygen.1 ssh-keygen.c] - Add -A option. For each of the key types (rsa1, rsa, dsa and ecdsa) - for which host keys do not exist, generate the host keys with the - default key file path, an empty passphrase, default bits for the key - type, and default comment. This will be used by /etc/rc to generate - new host keys. Idea from deraadt. - ok deraadt - - stevesk@cvs.openbsd.org 2011/03/23 16:24:56 - [ssh-keygen.1] - -q not used in /etc/rc now so remove statement. - - stevesk@cvs.openbsd.org 2011/03/23 16:50:04 - [ssh-keygen.c] - remove -d, documentation removed >10 years ago; ok markus - - jmc@cvs.openbsd.org 2011/03/24 15:29:30 - [ssh-keygen.1] - zap trailing whitespace; - - stevesk@cvs.openbsd.org 2011/03/24 22:14:54 - [ssh-keygen.c] - use strcasecmp() for "clear" cert permission option also; ok djm - - stevesk@cvs.openbsd.org 2011/03/29 18:54:17 - [misc.c misc.h servconf.c] - print ipqos friendly string for sshd -T; ok markus - # sshd -Tf sshd_config|grep ipqos - ipqos lowdelay throughput - - djm@cvs.openbsd.org 2011/04/12 04:23:50 + allow "ssh -f none ..." ok markus@ + - djm@cvs.openbsd.org 2013/04/05 00:14:00 + [auth2-gss.c krl.c sshconnect2.c] + hush some {unused, printf type} warnings + - djm@cvs.openbsd.org 2013/04/05 00:31:49 + [pathnames.h] + use the existing _PATH_SSH_USER_RC define to construct the other + pathnames; bz#2077, ok dtucker@ (no binary change) + - djm@cvs.openbsd.org 2013/04/05 00:58:51 + [mux.c] + cleanup mux-created channels that are in SSH_CHANNEL_OPENING state too + (in addition to ones already in OPEN); bz#2079, ok dtucker@ + - markus@cvs.openbsd.org 2013/04/06 16:07:00 + [channels.c sshd.c] + handle ECONNABORTED for accept(); ok deraadt some time ago... + - dtucker@cvs.openbsd.org 2013/04/07 02:10:33 + [log.c log.h ssh.1 ssh.c sshd.8 sshd.c] + Add -E option to ssh and sshd to append debugging logs to a specified file + instead of stderr or syslog. ok markus@, man page help jmc@ + - dtucker@cvs.openbsd.org 2013/04/07 09:40:27 + [sshd.8] + clarify -e text. suggested by & ok jmc@ + - djm@cvs.openbsd.org 2013/04/11 02:27:50 + [packet.c] + quiet disconnect notifications on the server from error() back to logit() + if it is a normal client closure; bz#2057 ok+feedback dtucker@ + - dtucker@cvs.openbsd.org 2013/04/17 09:04:09 + [session.c] + revert rev 1.262; it fails because uid is already set here. ok djm@ + - djm@cvs.openbsd.org 2013/04/18 02:16:07 + [sftp.c] + make "sftp -q" do what it says on the sticker: hush everything but errors; + ok dtucker@ + - djm@cvs.openbsd.org 2013/04/19 01:00:10 + [sshd_config.5] + document the requirment that the AuthorizedKeysCommand be owned by root; + ok dtucker@ markus@ + - djm@cvs.openbsd.org 2013/04/19 01:01:00 [ssh-keygen.c] - fix -Wshadow - - djm@cvs.openbsd.org 2011/04/12 05:32:49 - [sshd.c] - exit with 0 status on SIGTERM; bz#1879 - - djm@cvs.openbsd.org 2011/04/13 04:02:48 - [ssh-keygen.1] - improve wording; bz#1861 - - djm@cvs.openbsd.org 2011/04/13 04:09:37 - [ssh-keygen.1] - mention valid -b sizes for ECDSA keys; bz#1862 - - djm@cvs.openbsd.org 2011/04/17 22:42:42 - [PROTOCOL.mux clientloop.c clientloop.h mux.c ssh.1 ssh.c] - allow graceful shutdown of multiplexing: request that a mux server - removes its listener socket and refuse future multiplexing requests; + fix some memory leaks; bz#2088 ok dtucker@ + - djm@cvs.openbsd.org 2013/04/19 01:03:01 + [session.c] + reintroduce 1.262 without the connection-killing bug: + fatal() when ChrootDirectory specified by running without root privileges; ok markus@ - - djm@cvs.openbsd.org 2011/04/18 00:46:05 - [ssh-keygen.c] - certificate options are supposed to be packed in lexical order of - option name (though we don't actually enforce this at present). - Move one up that was out of sequence - - djm@cvs.openbsd.org 2011/05/04 21:15:29 - [authfile.c authfile.h ssh-add.c] - allow "ssh-add - < key"; feedback and ok markus@ - - (tim) [configure.ac] Add AC_LANG_SOURCE to OPENSSH_CHECK_CFLAG_COMPILE - so autoreconf 2.68 is happy. - - (tim) [defines.h] Deal with platforms that do not have S_IFSOCK ok djm@ - -20110221 - - (dtucker) [contrib/cygwin/ssh-host-config] From Corinna: revamp of the - Cygwin-specific service installer script ssh-host-config. The actual - functionality is the same, the revisited version is just more - exact when it comes to check for problems which disallow to run - certain aspects of the script. So, part of this script and the also - rearranged service helper script library "csih" is to check if all - the tools required to run the script are available on the system. - The new script also is more thorough to inform the user why the - script failed. Patch from vinschen at redhat com. - -20110218 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/02/16 00:31:14 - [ssh-keysign.c] - make hostbased auth with ECDSA keys work correctly. Based on patch - by harvey.eneman AT oracle.com in bz#1858; ok markus@ (pre-lock) - -20110206 - - (dtucker) [openbsd-compat/port-linux.c] Bug #1851: fix syntax error in - selinux code. Patch from Leonardo Chiquitto - - (dtucker) [contrib/cygwin/ssh-{host,user}-config] Add ECDSA key - generation and simplify. Patch from Corinna Vinschen. - -20110204 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/01/31 21:42:15 - [PROTOCOL.mux] - cut'n'pasto; from bert.wesarg AT googlemail.com - - djm@cvs.openbsd.org 2011/02/04 00:44:21 - [key.c] - fix uninitialised nonce variable; reported by Mateusz Kocielski - - djm@cvs.openbsd.org 2011/02/04 00:44:43 - [version.h] - openssh-5.8 - - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec] - [contrib/suse/openssh.spec] update versions in docs and spec files. - - Release OpenSSH 5.8p1 - -20110128 - - (djm) [openbsd-compat/port-linux.c] Check whether SELinux is enabled - before attempting setfscreatecon(). Check whether matchpathcon() - succeeded before using its result. Patch from cjwatson AT debian.org; - bz#1851 - -20110127 - - (tim) [config.guess config.sub] Sync with upstream. - - (tim) [configure.ac] Consistent M4 quoting throughout, updated obsolete - AC_TRY_COMPILE with AC_COMPILE_IFELSE, updated obsolete AC_TRY_LINK with - AC_LINK_IFELSE, updated obsolete AC_TRY_RUN with AC_RUN_IFELSE, misc white - space changes for consistency/readability. Makes autoconf 2.68 happy. - "Nice work" djm - -20110125 - - (djm) [configure.ac Makefile.in ssh.c openbsd-compat/port-linux.c - openbsd-compat/port-linux.h] Move SELinux-specific code from ssh.c to - port-linux.c to avoid compilation errors. Add -lselinux to ssh when - building with SELinux support to avoid linking failure; report from - amk AT spamfence.net; ok dtucker - -20110122 - - (dtucker) [configure.ac openbsd-compat/openssl-compat.{c,h}] Add - RSA_get_default_method() for the benefit of openssl versions that don't - have it (at least openssl-engine-0.9.6b). Found and tested by Kevin Brott, - ok djm@. - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/01/22 09:18:53 - [version.h] - crank to OpenSSH-5.7 - - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec] - [contrib/suse/openssh.spec] update versions in docs and spec files. - - (djm) Release 5.7p1 - -20110119 - - (tim) [contrib/caldera/openssh.spec] Use CFLAGS from Makefile instead - of RPM so build completes. Signatures were changed to .asc since 4.1p1. - - (djm) [configure.ac] Disable ECC on OpenSSL <0.9.8g. Releases prior to - 0.9.8 lacked it, and 0.9.8a through 0.9.8d have proven buggy in pre- - release testing (random crashes and failure to load ECC keys). - ok dtucker@ + - djm@cvs.openbsd.org 2013/04/19 01:06:50 + [authfile.c cipher.c cipher.h kex.c kex.h kexecdh.c kexecdhc.c kexecdhs.c] + [key.c key.h mac.c mac.h packet.c ssh.1 ssh.c] + add the ability to query supported ciphers, MACs, key type and KEX + algorithms to ssh. Includes some refactoring of KEX and key type handling + to be table-driven; ok markus@ + - djm@cvs.openbsd.org 2013/04/19 11:10:18 + [ssh.c] + add -Q to usage; reminded by jmc@ + - djm@cvs.openbsd.org 2013/04/19 12:07:08 + [kex.c] + remove duplicated list entry pointed out by naddy@ + - dtucker@cvs.openbsd.org 2013/04/22 01:17:18 + [mux.c] + typo in debug output: evitval->exitval -20110117 - - (djm) [regress/Makefile] use $TEST_SSH_KEYGEN instead of the one in - $PATH, fix cleanup of droppings; reported by openssh AT - roumenpetrov.info; ok dtucker@ - - (djm) [regress/agent-ptrace.sh] Fix false failure on OS X by adding - its unique snowflake of a gdb error to the ones we look for. - - (djm) [regress/agent-getpeereid.sh] leave stdout attached when running - ssh-add to avoid $SUDO failures on Linux - - (dtucker) [openbsd-compat/port-linux.c] Bug #1838: Add support for the new - Linux OOM-killer magic values that changed in 2.6.36 kernels, with fallback - to the old values. Feedback from vapier at gentoo org and djm, ok djm. - - (djm) [configure.ac regress/agent-getpeereid.sh regress/multiplex.sh] - [regress/sftp-glob.sh regress/test-exec.sh] Rework how feature tests are - disabled on platforms that do not support them; add a "config_defined()" - shell function that greps for defines in config.h and use them to decide - on feature tests. - Convert a couple of existing grep's over config.h to use the new function - Add a define "FILESYSTEM_NO_BACKSLASH" for filesystem that can't represent - backslash characters in filenames, enable it for Cygwin and use it to turn - of tests for quotes backslashes in sftp-glob.sh. - based on discussion with vinschen AT redhat.com and dtucker@; ok dtucker@ - - (tim) [regress/agent-getpeereid.sh] shell portability fix. - - (dtucker) [openbsd-compat/port-linux.c] Fix minor bug caught by -Werror on - the tinderbox. - - (dtucker) [LICENCE Makefile.in audit-bsm.c audit-linux.c audit.c audit.h - configure.ac defines.h loginrec.c] Bug #1402: add linux audit subsystem - support, based on patches from Tomas Mraz and jchadima at redhat. - -20110116 - - (dtucker) [Makefile.in configure.ac regress/kextype.sh] Skip sha256-based - on configurations that don't have it. - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/01/16 11:50:05 - [clientloop.c] - Use atomicio when flushing protocol 1 std{out,err} buffers at - session close. This was a latent bug exposed by setting a SIGCHLD - handler and spotted by kevin.brott AT gmail.com; ok dtucker@ - - djm@cvs.openbsd.org 2011/01/16 11:50:36 - [sshconnect.c] - reset the SIGPIPE handler when forking to execute child processes; - ok dtucker@ - - djm@cvs.openbsd.org 2011/01/16 12:05:59 - [clientloop.c] - a couple more tweaks to the post-close protocol 1 stderr/stdout flush: - now that we use atomicio(), convert them from while loops to if statements - add test and cast to compile cleanly with -Wsigned +20130418 + - (djm) [config.guess config.sub] Update to last versions before they switch + to GPL3. ok dtucker@ + - (dtucker) [configure.ac] Use -Qunused-arguments to suppress warnings from + unused argument warnings (in particular, -fno-builtin-memset) from clang. -20110114 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/01/13 21:54:53 - [mux.c] - correct error messages; patch from bert.wesarg AT googlemail.com - - djm@cvs.openbsd.org 2011/01/13 21:55:25 - [PROTOCOL.mux] - correct protocol names and add a couple of missing protocol number - defines; patch from bert.wesarg AT googlemail.com - - (djm) [Makefile.in] Use shell test to disable ecdsa key generating in - host-key-force target rather than a substitution that is replaced with a - comment so that the Makefile.in is still a syntactically valid Makefile - (useful to run the distprep target) - - (tim) [regress/cert-hostkey.sh] Typo. Missing $ on variable name. - - (tim) [regress/cert-hostkey.sh] Add missing TEST_SSH_ECC guard around some - ecdsa bits. - -20110113 - - (djm) [misc.c] include time.h for nanosleep() prototype - - (tim) [Makefile.in] test the ECC bits if we have the capability. ok djm - - (tim) [Makefile.in configure.ac opensshd.init.in] Add support for generating - ecdsa keys. ok djm. - - (djm) [entropy.c] cast OPENSSL_VERSION_NUMBER to u_long to avoid - gcc warning on platforms where it defaults to int - - (djm) [regress/Makefile] add a few more generated files to the clean - target - - (djm) [myproposal.h] Fix reversed OPENSSL_VERSION_NUMBER test and bad - #define that was causing diffie-hellman-group-exchange-sha256 to be - incorrectly disabled - - (djm) [regress/kextype.sh] Testing diffie-hellman-group-exchange-sha256 - should not depend on ECC support - -20110112 - - OpenBSD CVS Sync - - nicm@cvs.openbsd.org 2010/10/08 21:48:42 - [openbsd-compat/glob.c] - Extend GLOB_LIMIT to cover readdir and stat and bump the malloc limit - from ARG_MAX to 64K. - Fixes glob-using programs (notably ftp) able to be triggered to hit - resource limits. - Idea from a similar NetBSD change, original problem reported by jasper@. - ok millert tedu jasper - - djm@cvs.openbsd.org 2011/01/12 01:53:14 - avoid some integer overflows mostly with GLOB_APPEND and GLOB_DOOFFS - and sanity check arguments (these will be unnecessary when we switch - struct glob members from being type into to size_t in the future); - "looks ok" tedu@ feedback guenther@ - - (djm) [configure.ac] Turn on -Wno-unused-result for gcc >= 4.4 to avoid - silly warnings on write() calls we don't care succeed or not. - - (djm) [configure.ac] Fix broken test for gcc >= 4.4 with per-compiler - flag tests that don't depend on gcc version at all; suggested by and +20130404 + - (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2013/02/17 23:16:57 + [readconf.c ssh.c readconf.h sshconnect2.c] + Keep track of which IndentityFile options were manually supplied and which + were default options, and don't warn if the latter are missing. + ok markus@ + - dtucker@cvs.openbsd.org 2013/02/19 02:12:47 + [krl.c] + Remove bogus include. ok djm + - dtucker@cvs.openbsd.org 2013/02/22 04:45:09 + [ssh.c readconf.c readconf.h] + Don't complain if IdentityFiles specified in system-wide configs are + missing. ok djm, deraadt. + - markus@cvs.openbsd.org 2013/02/22 19:13:56 + [sshconnect.c] + support ProxyCommand=- (stdin/out already point to the proxy); ok djm@ + - djm@cvs.openbsd.org 2013/02/22 22:09:01 + [ssh.c] + Allow IdenityFile=none; ok markus deraadt (and dtucker for an earlier + version) + +20130401 + - (dtucker) [openbsd-compat/bsd-cygwin_util.{c,h}] Don't include windows.h + to avoid conflicting definitions of __int64, adding the required bits. + Patch from Corinna Vinschen. + +20130323 + - (tim) [Makefile.in] remove some duplication introduced in 20130220 commit. + +20130322 + - (djm) [contrib/ssh-copy-id contrib/ssh-copy-id.1] Updated to Phil + Hands' greatly revised version. + - (djm) Release 6.2p1 + - (dtucker) [configure.ac] Add stdlib.h to zlib check for exit() prototype. + - (dtucker) [includes.h] Check if _GNU_SOURCE is already defined before + defining it again. Prevents warnings if someone, eg, sets it in CFLAGS. + +20130318 + - (djm) [configure.ac log.c scp.c sshconnect2.c openbsd-compat/vis.c] + [openbsd-compat/vis.h] FreeBSD's strnvis isn't compatible with OpenBSD's + so mark it as broken. Patch from des AT des.no + +20130317 + - (tim) [configure.ac] OpenServer 5 wants lastlog even though it has none + of the bits the configure test looks for. + +20130316 + - (djm) [configure.ac] Disable utmp, wtmp and/or lastlog if the platform + is unable to successfully compile them. Based on patch from des AT + des.no + - (djm) [configure.ac openbsd-compat/bsd-misc.c openbsd-compat/bsd-misc.h] + Add a usleep replacement for platforms that lack it; ok dtucker + - (djm) [session.c] FreeBSD needs setusercontext(..., LOGIN_SETUMASK) to + occur after UID switch; patch from John Marshall via des AT des.no; ok dtucker@ -20110111 - - (tim) [regress/host-expand.sh] Fix for building outside of read only - source tree. - - (djm) [platform.c] Some missing includes that show up under -Werror - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2011/01/08 10:51:51 - [clientloop.c] - use host and not options.hostname, as the latter may have unescaped - substitution characters - - djm@cvs.openbsd.org 2011/01/11 06:06:09 - [sshlogin.c] - fd leak on error paths; from zinovik@ - NB. Id sync only; we use loginrec.c that was also audited and fixed - recently - - djm@cvs.openbsd.org 2011/01/11 06:13:10 - [clientloop.c ssh-keygen.c sshd.c] - some unsigned long long casts that make things a bit easier for - portable without resorting to dropping PRIu64 formats everywhere - -20110109 - - (djm) [Makefile.in] list ssh_host_ecdsa key in PATHSUBS; spotted by - openssh AT roumenpetrov.info - -20110108 - - (djm) [regress/keytype.sh] s/echo -n/echon/ to repair failing regress - test on OSX and others. Reported by imorgan AT nas.nasa.gov - -20110107 - - (djm) [regress/cert-hostkey.sh regress/cert-userkey.sh] fix shell test - for no-ECC case. Patch from cristian.ionescu-idbohrn AT axis.com - - djm@cvs.openbsd.org 2011/01/06 22:23:53 - [ssh.c] - unbreak %n expansion in LocalCommand; patch from bert.wesarg AT - googlemail.com; ok markus@ - - djm@cvs.openbsd.org 2011/01/06 22:23:02 - [clientloop.c] - when exiting due to ServerAliveTimeout, mention the hostname that caused - it (useful with backgrounded controlmaster) - - djm@cvs.openbsd.org 2011/01/06 22:46:21 - [regress/Makefile regress/host-expand.sh] - regress test for LocalCommand %n expansion from bert.wesarg AT - googlemail.com; ok markus@ - - djm@cvs.openbsd.org 2011/01/06 23:01:35 - [sshconnect.c] - reset SIGCHLD handler to SIG_DFL when execuring LocalCommand; - ok markus@ +20130312 + - (dtucker) [regress/Makefile regress/cipher-speed.sh regress/test-exec.sh] + Improve portability of cipher-speed test, based mostly on a patch from + Iain Morgan. + - (dtucker) [auth.c configure.ac platform.c platform.h] Accept uid 2 ("bin") + in addition to root as an owner of system directories on AIX and HP-UX. + ok djm@ -20110106 - - (djm) OpenBSD CVS Sync - - markus@cvs.openbsd.org 2010/12/08 22:46:03 - [scp.1 scp.c] - add a new -3 option to scp: Copies between two remote hosts are - transferred through the local host. Without this option the data - is copied directly between the two remote hosts. ok djm@ (bugzilla #1837) - - jmc@cvs.openbsd.org 2010/12/09 14:13:33 - [scp.1 scp.c] - scp.1: grammer fix - scp.c: add -3 to usage() - - markus@cvs.openbsd.org 2010/12/14 11:59:06 - [sshconnect.c] - don't mention key type in key-changed-warning, since we also print - this warning if a new key type appears. ok djm@ - - djm@cvs.openbsd.org 2010/12/15 00:49:27 - [readpass.c] - fix ControlMaster=ask regression - reset SIGCHLD handler before fork (and restore it after) so we don't miss - the the askpass child's exit status. Correct test for exit status/signal to - account for waitpid() failure; with claudio@ ok claudio@ markus@ - - djm@cvs.openbsd.org 2010/12/24 21:41:48 - [auth-options.c] - don't send the actual forced command in a debug message; ok markus deraadt - - otto@cvs.openbsd.org 2011/01/04 20:44:13 - [ssh-keyscan.c] - handle ecdsa-sha2 with various key lengths; hint and ok djm@ - -20110104 - - (djm) [configure.ac Makefile.in] Use mandoc as preferred manpage - formatter if it is present, followed by nroff and groff respectively. - Fixes distprep target on OpenBSD (which has bumped groff/nroff to ports - in favour of mandoc). feedback and ok tim - -20110103 - - (djm) [Makefile.in] revert local hack I didn't intend to commit - -20110102 - - (djm) [loginrec.c] Fix some fd leaks on error paths. ok dtucker - - (djm) [configure.ac] Check whether libdes is needed when building - with Heimdal krb5 support. On OpenBSD this library no longer exists, - so linking it unconditionally causes a build failure; ok dtucker - -20101226 - - (dtucker) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/12/08 04:02:47 - [ssh_config.5 sshd_config.5] - explain that IPQoS arguments are separated by whitespace; iirc requested - by jmc@ a while back +20130307 + - (dtucker) [INSTALL] Bump documented autoconf version to what we're + currently using. + - (dtucker) [defines.h] Remove SIZEOF_CHAR bits since the test for it + was removed in configure.ac rev 1.481 as it was redundant. + - (tim) [Makefile.in] Add another missing $(EXEEXT) I should have seen 3 days + ago. + - (djm) [configure.ac] Add a timeout to the select/rlimit test to give it a + chance to complete on broken systems; ok dtucker@ + +20130306 + - (dtucker) [regress/forward-control.sh] Wait longer for the forwarding + connection to start so that the test works on slower machines. + - (dtucker) [configure.ac] test that we can set number of file descriptors + to zero with setrlimit before enabling the rlimit sandbox. This affects + (at least) HPUX 11.11. + +20130305 + - (djm) [regress/modpipe.c] Compilation fix for AIX and parsing fix for + HP/UX. Spotted by Kevin Brott + - (dtucker) [configure.ac] use "=" for shell test and not "==". Spotted by + Amit Kulkarni and Kevin Brott. + - (dtucker) [Makefile.in] Remove trailing "\" on PATHS, which caused obscure + build breakage on (at least) HP-UX 11.11. Found by Amit Kulkarni and Kevin + Brott. + - (tim) [Makefile.in] Add missing $(EXEEXT). Found by Roumen Petrov. + +20130227 + - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec] + [contrib/suse/openssh.spec] Crank version numbers + - (tim) [regress/forward-control.sh] use sh in case login shell is csh. + - (tim) [regress/integrity.sh] shell portability fix. + - (tim) [regress/integrity.sh] keep old solaris awk from hanging. + - (tim) [regress/krl.sh] keep old solaris awk from hanging. -20101205 - - (dtucker) openbsd-compat/openssl-compat.c] remove sleep leftover from - debugging. Spotted by djm. - - (dtucker) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/12/03 23:49:26 - [schnorr.c] - check that g^x^q === 1 mod p; recommended by JPAKE author Feng Hao - (this code is still disabled, but apprently people are treating it as - a reference implementation) - - djm@cvs.openbsd.org 2010/12/03 23:55:27 - [auth-rsa.c] - move check for revoked keys to run earlier (in auth_rsa_key_allowed) - bz#1829; patch from ldv AT altlinux.org; ok markus@ - - djm@cvs.openbsd.org 2010/12/04 00:18:01 - [sftp-server.c sftp.1 sftp-client.h sftp.c PROTOCOL sftp-client.c] - add a protocol extension to support a hard link operation. It is - available through the "ln" command in the client. The old "ln" - behaviour of creating a symlink is available using its "-s" option - or through the preexisting "symlink" command; based on a patch from - miklos AT szeredi.hu in bz#1555; ok markus@ - - djm@cvs.openbsd.org 2010/12/04 13:31:37 - [hostfile.c] - fix fd leak; spotted and ok dtucker - - djm@cvs.openbsd.org 2010/12/04 00:21:19 - [regress/sftp-cmds.sh] - adjust for hard-link support - - (dtucker) [regress/Makefile] Id sync. +20130226 + - OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/02/20 08:27:50 + [integrity.sh] + Add an option to modpipe that warns if the modification offset it not + reached in it's stream and turn it on for t-integrity. This should catch + cases where the session is not fuzzed for being too short (cf. my last + "oops" commit) + - (djm) [regress/integrity.sh] Run sshd via $SUDO; fixes tinderbox breakage + for UsePAM=yes configuration + +20130225 + - (dtucker) [configure.ac ssh-gss.h] bz#2073: additional #includes needed + to use Solaris native GSS libs. Patch from Pierre Ossman. + +20130223 + - (djm) [configure.ac includes.h loginrec.c mux.c sftp.c] Prefer + bsd/libutil.h to libutil.h to avoid deprecation warnings on Ubuntu. + ok tim + +20130222 + - (dtucker) [Makefile.in configure.ac] bz#2072: don't link krb5 libs to + ssh(1) since they're not needed. Patch from Pierre Ossman, ok djm. + - (dtucker) [configure.ac] bz#2073: look for Solaris' differently-named + libgss too. Patch from Pierre Ossman, ok djm. + - (djm) [configure.ac sandbox-seccomp-filter.c] Support for Linux + seccomp-bpf sandbox on ARM. Patch from shawnlandden AT gmail.com; + ok dtucker -20101204 - - (djm) [openbsd-compat/bindresvport.c] Use arc4random_uniform(range) - instead of (arc4random() % range) - - (dtucker) [configure.ac moduli.c openbsd-compat/openssl-compat.{c,h}] Add - shims for the new, non-deprecated OpenSSL key generation functions for - platforms that don't have the new interfaces. +20130221 + - (tim) [regress/forward-control.sh] shell portability fix. -20101201 +20130220 + - (tim) [regress/cipher-speed.sh regress/try-ciphers.sh] shell portability fix. + - (tim) [krl.c Makefile.in regress/Makefile regress/modpipe.c] remove unneeded + err.h include from krl.c. Additional portability fixes for modpipe. OK djm - OpenBSD CVS Sync - - deraadt@cvs.openbsd.org 2010/11/20 05:12:38 - [auth2-pubkey.c] - clean up cases of ;; - - djm@cvs.openbsd.org 2010/11/21 01:01:13 - [clientloop.c misc.c misc.h ssh-agent.1 ssh-agent.c] - honour $TMPDIR for client xauth and ssh-agent temporary directories; - feedback and ok markus@ - - djm@cvs.openbsd.org 2010/11/21 10:57:07 - [authfile.c] - Refactor internals of private key loading and saving to work on memory - buffers rather than directly on files. This will make a few things - easier to do in the future; ok markus@ - - djm@cvs.openbsd.org 2010/11/23 02:35:50 - [auth.c] - use strict_modes already passed as function argument over referencing - global options.strict_modes - - djm@cvs.openbsd.org 2010/11/23 23:57:24 - [clientloop.c] - avoid NULL deref on receiving a channel request on an unknown or invalid - channel; report bz#1842 from jchadima AT redhat.com; ok dtucker@ - - djm@cvs.openbsd.org 2010/11/24 01:24:14 - [channels.c] - remove a debug() that pollutes stderr on client connecting to a server - in debug mode (channel_close_fds is called transitively from the session - code post-fork); bz#1719, ok dtucker - - djm@cvs.openbsd.org 2010/11/25 04:10:09 - [session.c] - replace close() loop for fds 3->64 with closefrom(); - ok markus deraadt dtucker - - djm@cvs.openbsd.org 2010/11/26 05:52:49 - [scp.c] - Pass through ssh command-line flags and options when doing remote-remote - transfers, e.g. to enable agent forwarding which is particularly useful - in this case; bz#1837 ok dtucker@ - - markus@cvs.openbsd.org 2010/11/29 18:57:04 - [authfile.c] - correctly load comment for encrypted rsa1 keys; - report/fix Joachim Schipper; ok djm@ - - djm@cvs.openbsd.org 2010/11/29 23:45:51 - [auth.c hostfile.c hostfile.h ssh.c ssh_config.5 sshconnect.c] - [sshconnect.h sshconnect2.c] - automatically order the hostkeys requested by the client based on - which hostkeys are already recorded in known_hosts. This avoids - hostkey warnings when connecting to servers with new ECDSA keys - that are preferred by default; with markus@ - -20101124 - - (dtucker) [platform.c session.c] Move the getluid call out of session.c and - into the platform-specific code Only affects SCO, tested by and ok tim@. - - (djm) [loginrec.c] Relax permission requirement on btmp logs to allow - group read/write. ok dtucker@ - - (dtucker) [packet.c] Remove redundant local declaration of "int tos". - - (djm) [defines.h] Add IP DSCP defines - -20101122 - - (dtucker) Bug #1840: fix warning when configuring --with-ssl-engine, patch - from vapier at gentoo org. - -20101120 + - djm@cvs.openbsd.org 2013/02/20 08:27:50 + [regress/integrity.sh regress/modpipe.c] + Add an option to modpipe that warns if the modification offset it not + reached in it's stream and turn it on for t-integrity. This should catch + cases where the session is not fuzzed for being too short (cf. my last + "oops" commit) + - djm@cvs.openbsd.org 2013/02/20 08:29:27 + [regress/modpipe.c] + s/Id/OpenBSD/ in RCS tag + +20130219 - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/11/05 02:46:47 - [packet.c] - whitespace KNF - - djm@cvs.openbsd.org 2010/11/10 01:33:07 - [kexdhc.c kexdhs.c kexgexc.c kexgexs.c key.c moduli.c] - use only libcrypto APIs that are retained with OPENSSL_NO_DEPRECATED. - these have been around for years by this time. ok markus - - djm@cvs.openbsd.org 2010/11/13 23:27:51 - [clientloop.c misc.c misc.h packet.c packet.h readconf.c readconf.h] - [servconf.c servconf.h session.c ssh.c ssh_config.5 sshd_config.5] - allow ssh and sshd to set arbitrary TOS/DSCP/QoS values instead of - hardcoding lowdelay/throughput. - - bz#1733 patch from philipp AT redfish-solutions.com; ok markus@ deraadt@ - - jmc@cvs.openbsd.org 2010/11/15 07:40:14 - [ssh_config.5] - libary -> library; - - jmc@cvs.openbsd.org 2010/11/18 15:01:00 - [scp.1 sftp.1 ssh.1 sshd_config.5] - add IPQoS to the various -o lists, and zap some trailing whitespace; - -20101111 - - (djm) [servconf.c ssh-add.c ssh-keygen.c] don't look for ECDSA keys on - platforms that don't support ECC. Fixes some spurious warnings reported - by tim@ - -20101109 - - (tim) [regress/kextype.sh] Not all platforms have time in /usr/bin. - Feedback from dtucker@ - - (tim) [configure.ac openbsd-compat/bsd-misc.h openbsd-compat/bsd-misc.c] Add - support for platforms missing isblank(). ok djm@ - -20101108 - - (tim) [regress/Makefile] Fixes to allow building/testing outside source - tree. - - (tim) [regress/kextype.sh] Shell portability fix. - -20101107 - - (dtucker) [platform.c] includes.h instead of defines.h so that we get - the correct typedefs. - -20101105 - - (djm) [loginrec.c loginrec.h] Use correct uid_t/pid_t types instead of - int. Should fix bz#1817 cleanly; ok dtucker@ + - djm@cvs.openbsd.org 2013/02/18 22:26:47 + [integrity.sh] + crank the offset yet again; it was still fuzzing KEX one of Darren's + portable test hosts at 2800 + - djm@cvs.openbsd.org 2013/02/19 02:14:09 + [integrity.sh] + oops, forgot to increase the output of the ssh command to ensure that + we actually reach $offset + - (djm) [regress/integrity.sh] Skip SHA2-based MACs on configurations that + lack support for SHA2. + - (djm) [regress/modpipe.c] Add local err, and errx functions for platforms + that do not have them. + +20130217 - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/09/22 12:26:05 - [regress/Makefile regress/kextype.sh] - regress test for each of the key exchange algorithms that we support - - djm@cvs.openbsd.org 2010/10/28 11:22:09 - [authfile.c key.c key.h ssh-keygen.c] - fix a possible NULL deref on loading a corrupt ECDH key - - store ECDH group information in private keys files as "named groups" - rather than as a set of explicit group parameters (by setting - the OPENSSL_EC_NAMED_CURVE flag). This makes for shorter key files and - retrieves the group's OpenSSL NID that we need for various things. - - jmc@cvs.openbsd.org 2010/10/28 18:33:28 - [scp.1 ssh-add.1 ssh-keygen.1 ssh.1 ssh_config.5 sshd.8 sshd_config.5] - knock out some "-*- nroff -*-" lines; - - djm@cvs.openbsd.org 2010/11/04 02:45:34 - [sftp-server.c] - umask should be parsed as octal. reported by candland AT xmission.com; - ok markus@ - - (dtucker) [configure.ac platform.{c,h} session.c - openbsd-compat/port-solaris.{c,h}] Bug #1824: Add Solaris Project support. - Patch from cory.erickson at csu mnscu edu with a bit of rework from me. - ok djm@ - - (dtucker) [platform.c platform.h session.c] Add a platform hook to run - after the user's groups are established and move the selinux calls into it. - - (dtucker) [platform.c session.c] Move the AIX setpcred+chroot hack into - platform.c - - (dtucker) [platform.c session.c] Move the BSDI setpgrp into platform.c. - - (dtucker) [platform.c] Only call setpgrp on BSDI if running as root to - retain previous behavior. - - (dtucker) [platform.c session.c] Move the PAM credential establishment for - the LOGIN_CAP case into platform.c. - - (dtucker) platform.c session.c] Move the USE_LIBIAF fragment into - platform.c - - (dtucker) [platform.c session.c] Move aix_usrinfo frament into platform.c. - - (dtucker) [platform.c session.c] Move irix setusercontext fragment into - platform.c. - - (dtucker) [platform.c session.c] Move PAM credential establishment for the - non-LOGIN_CAP case into platform.c. - - (dtucker) [platform.c platform.h session.c] Move the Cygwin special-case - check into platform.c - - (dtucker) [regress/keytype.sh] Import new test. - - (dtucker) [Makefile configure.ac regress/Makefile regress/keytype.sh] - Import recent changes to regress/Makefile, pass a flag to enable ECC tests - from configure through to regress/Makefile and use it in the tests. - - (dtucker) [regress/kextype.sh] Add missing "test". - - (dtucker) [regress/kextype.sh] Make sha256 test depend on ECC. This is not - strictly correct since while ECC requires sha256 the reverse is not true - however it does prevent spurious test failures. - - (dtucker) [platform.c] Need servconf.h and extern options. - -20101025 - - (tim) [openbsd-compat/glob.h] Remove sys/cdefs.h include that came with - 1.12 to unbreak Solaris build. - ok djm@ - - (dtucker) [defines.h] Use SIZE_T_MAX for SIZE_MAX for platforms that have a - native one. - -20101024 - - (dtucker) [includes.h] Add missing ifdef GLOB_HAS_GL_STATV to fix build. - - (dtucker) [regress/cert-hostkey.sh] Disable ECC-based tests on platforms - which don't have ECC support in libcrypto. - - (dtucker) [regress/cert-userkey.sh] Disable ECC-based tests on platforms - which don't have ECC support in libcrypto. - - (dtucker) [defines.h] Add SIZE_MAX for the benefit of platforms that don't - have it. - - (dtucker) OpenBSD CVS Sync - - sthen@cvs.openbsd.org 2010/10/23 22:06:12 - [sftp.c] - escape '[' in filename tab-completion; fix a type while there. - ok djm@ + - djm@cvs.openbsd.org 2013/02/17 23:16:55 + [integrity.sh] + make the ssh command generates some output to ensure that there are at + least offset+tries bytes in the stream. -20101021 +20130216 - OpenBSD CVS Sync - - dtucker@cvs.openbsd.org 2010/10/12 02:22:24 - [mux.c] - Typo in confirmation message. bz#1827, patch from imorgan at - nas nasa gov - - djm@cvs.openbsd.org 2010/08/31 12:24:09 - [regress/cert-hostkey.sh regress/cert-userkey.sh] - tests for ECDSA certificates - -20101011 - - (djm) [canohost.c] Zero a4 instead of addr to better match type. - bz#1825, reported by foo AT mailinator.com - - (djm) [sshconnect.c] Need signal.h for prototype for kill(2) - -20101011 - - (djm) [configure.ac] Use = instead of == in shell tests. Patch from - dr AT vasco.com - -20101007 - - (djm) [ssh-agent.c] Fix type for curve name. + - djm@cvs.openbsd.org 2013/02/16 06:08:45 + [integrity.sh] + make sure the fuzz offset is actually past the end of KEX for all KEX + types. diffie-hellman-group-exchange-sha256 requires an offset around + 2700. Noticed via test failures in portable OpenSSH on platforms that + lack ECC and this the more byte-frugal ECDH KEX algorithms. + +20130215 + - (djm) [contrib/suse/rc.sshd] Use SSHD_BIN consistently; bz#2056 from + Iain Morgan + - (dtucker) [configure.ac openbsd-compat/bsd-misc.c openbsd-compat/bsd-misc.h] + Use getpgrp() if we don't have getpgid() (old BSDs, maybe others). + - (dtucker) [configure.ac openbsd-compat/Makefile.in openbsd-compat/strtoull.c + openbsd-compat/openbsd-compat.h] Add strtoull to compat library for + platforms that don't have it. + - (dtucker) [openbsd-compat/openbsd-compat.h] Add prototype for strtoul, + group strto* function prototypes together. + - (dtucker) [openbsd-compat/bsd-misc.c] Handle the case where setpgrp() takes + an argument. Pointed out by djm. - (djm) OpenBSD CVS Sync - - matthew@cvs.openbsd.org 2010/09/24 13:33:00 - [misc.c misc.h configure.ac openbsd-compat/openbsd-compat.h] - [openbsd-compat/timingsafe_bcmp.c] - Add timingsafe_bcmp(3) to libc, mention that it's already in the - kernel in kern(9), and remove it from OpenSSH. - ok deraadt@, djm@ - NB. re-added under openbsd-compat/ for portable OpenSSH - - djm@cvs.openbsd.org 2010/09/25 09:30:16 - [sftp.c configure.ac openbsd-compat/glob.c openbsd-compat/glob.h] - make use of new glob(3) GLOB_KEEPSTAT extension to save extra server - rountrips to fetch per-file stat(2) information. - NB. update openbsd-compat/ glob(3) implementation from OpenBSD libc to - match. - - djm@cvs.openbsd.org 2010/09/26 22:26:33 - [sftp.c] - when performing an "ls" in columnated (short) mode, only call - ioctl(TIOCGWINSZ) once to get the window width instead of per- - filename - - djm@cvs.openbsd.org 2010/09/30 11:04:51 - [servconf.c] - prevent free() of string in .rodata when overriding AuthorizedKeys in - a Match block; patch from rein AT basefarm.no - - djm@cvs.openbsd.org 2010/10/01 23:05:32 - [cipher-3des1.c cipher-bf1.c cipher-ctr.c openbsd-compat/openssl-compat.h] - adapt to API changes in openssl-1.0.0a - NB. contains compat code to select correct API for older OpenSSL - - djm@cvs.openbsd.org 2010/10/05 05:13:18 - [sftp.c sshconnect.c] - use default shell /bin/sh if $SHELL is ""; ok markus@ - - djm@cvs.openbsd.org 2010/10/06 06:39:28 - [clientloop.c ssh.c sshconnect.c sshconnect.h] - kill proxy command on fatal() (we already kill it on clean exit); - ok markus@ - - djm@cvs.openbsd.org 2010/10/06 21:10:21 - [sshconnect.c] - swapped args to kill(2) - - (djm) [openbsd-compat/glob.c] restore ARG_MAX compat code. - - (djm) [cipher-acss.c] Add missing header. - - (djm) [openbsd-compat/Makefile.in] Actually link timingsafe_bcmp + - djm@cvs.openbsd.org 2013/02/14 21:35:59 + [auth2-pubkey.c] + Correct error message that had a typo and was logging the wrong thing; + patch from Petr Lautrbach + - dtucker@cvs.openbsd.org 2013/02/15 00:21:01 + [sshconnect2.c] + Warn more loudly if an IdentityFile provided by the user cannot be read. + bz #1981, ok djm@ -20100924 +20130214 + - (djm) [regress/krl.sh] Don't use ecdsa keys in environment that lack ECC. + - (djm) [regress/krl.sh] typo; found by Iain Morgan + - (djm) [regress/integrity.sh] Start fuzzing from offset 2500 (instead + of 2300) to avoid clobbering the end of (non-MAC'd) KEX. Verified by + Iain Morgan + +20130212 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/01/24 21:45:37 + [krl.c] + fix handling of (unused) KRL signatures; skip string in correct buffer + - djm@cvs.openbsd.org 2013/01/24 22:08:56 + [krl.c] + skip serial lookup when cert's serial number is zero + - krw@cvs.openbsd.org 2013/01/25 05:00:27 + [krl.c] + Revert last. Breaks due to likely typo. Let djm@ fix later. + ok djm@ via dlg@ + - djm@cvs.openbsd.org 2013/01/25 10:22:19 + [krl.c] + redo last commit without the vi-vomit that snuck in: + skip serial lookup when cert's serial number is zero + (now with 100% better comment) + - djm@cvs.openbsd.org 2013/01/26 06:11:05 + [Makefile.in acss.c acss.h cipher-acss.c cipher.c] + [openbsd-compat/openssl-compat.h] + remove ACSS, now that it is gone from libcrypto too + - djm@cvs.openbsd.org 2013/01/27 10:06:12 + [krl.c] + actually use the xrealloc() return value; spotted by xi.wang AT gmail.com + - dtucker@cvs.openbsd.org 2013/02/06 00:20:42 + [servconf.c sshd_config sshd_config.5] + Change default of MaxStartups to 10:30:100 to start doing random early + drop at 10 connections up to 100 connections. This will make it harder + to DoS as CPUs have come a long way since the original value was set + back in 2000. Prompted by nion at debian org, ok markus@ + - dtucker@cvs.openbsd.org 2013/02/06 00:22:21 + [auth.c] + Fix comment, from jfree.e1 at gmail + - djm@cvs.openbsd.org 2013/02/08 00:41:12 + [sftp.c] + fix NULL deref when built without libedit and control characters + entered as command; debugging and patch from Iain Morgan an + Loganaden Velvindron in bz#1956 + - markus@cvs.openbsd.org 2013/02/10 21:19:34 + [version.h] + openssh 6.2 + - djm@cvs.openbsd.org 2013/02/10 23:32:10 + [ssh-keygen.c] + append to moduli file when screening candidates rather than overwriting. + allows resumption of interrupted screen; patch from Christophe Garault + in bz#1957; ok dtucker@ + - djm@cvs.openbsd.org 2013/02/10 23:35:24 + [packet.c] + record "Received disconnect" messages at ERROR rather than INFO priority, + since they are abnormal and result in a non-zero ssh exit status; patch + from Iain Morgan in bz#2057; ok dtucker@ + - dtucker@cvs.openbsd.org 2013/02/11 21:21:58 + [sshd.c] + Add openssl version to debug output similar to the client. ok markus@ + - djm@cvs.openbsd.org 2013/02/11 23:58:51 + [regress/try-ciphers.sh] + remove acss here too + - (djm) [regress/try-ciphers.sh] clean up CVS merge botch + +20130211 + - (djm) [configure.ac openbsd-compat/openssl-compat.h] Repair build on old + libcrypto that lacks EVP_CIPHER_CTX_ctrl + +20130208 + - (djm) [contrib/redhat/sshd.init] treat RETVAL as an integer; + patch from Iain Morgan in bz#2059 + - (dtucker) [configure.ac openbsd-compat/sys-tree.h] Test if compiler allows + __attribute__ on return values and work around if necessary. ok djm@ + +20130207 + - (djm) [configure.ac] Don't probe seccomp capability of running kernel + at configure time; the seccomp sandbox will fall back to rlimit at + runtime anyway. Patch from plautrba AT redhat.com in bz#2011 + +20130120 + - (djm) [cipher-aes.c cipher-ctr.c openbsd-compat/openssl-compat.h] + Move prototypes for replacement ciphers to openssl-compat.h; fix EVP + prototypes for openssl-1.0.0-fips. - (djm) OpenBSD CVS Sync - - naddy@cvs.openbsd.org 2010/09/10 15:19:29 + - jmc@cvs.openbsd.org 2013/01/18 07:57:47 [ssh-keygen.1] - * mention ECDSA in more places - * less repetition in FILES section - * SSHv1 keys are still encrypted with 3DES - help and ok jmc@ - - djm@cvs.openbsd.org 2010/09/11 21:44:20 - [ssh.1] - mention RFC 5656 for ECC stuff - - jmc@cvs.openbsd.org 2010/09/19 21:30:05 - [sftp.1] - more wacky macro fixing; - - djm@cvs.openbsd.org 2010/09/20 04:41:47 - [ssh.c] - install a SIGCHLD handler to reap expiried child process; ok markus@ - - djm@cvs.openbsd.org 2010/09/20 04:50:53 - [jpake.c schnorr.c] - check that received values are smaller than the group size in the - disabled and unfinished J-PAKE code. - avoids catastrophic security failure found by Sebastien Martini - - djm@cvs.openbsd.org 2010/09/20 04:54:07 - [jpake.c] - missing #include - - djm@cvs.openbsd.org 2010/09/20 07:19:27 - [mux.c] - "atomically" create the listening mux socket by binding it on a temorary - name and then linking it into position after listen() has succeeded. - this allows the mux clients to determine that the server socket is - either ready or stale without races. stale server sockets are now - automatically removed - ok deraadt - - djm@cvs.openbsd.org 2010/09/22 05:01:30 - [kex.c kex.h kexecdh.c kexecdhc.c kexecdhs.c readconf.c readconf.h] - [servconf.c servconf.h ssh_config.5 sshconnect2.c sshd.c sshd_config.5] - add a KexAlgorithms knob to the client and server configuration to allow - selection of which key exchange methods are used by ssh(1) and sshd(8) - and their order of preference. + tweak previous; + - jmc@cvs.openbsd.org 2013/01/18 07:59:46 + [ssh-keygen.c] + -u before -V in usage(); + - jmc@cvs.openbsd.org 2013/01/18 08:00:49 + [sshd_config.5] + tweak previous; + - jmc@cvs.openbsd.org 2013/01/18 08:39:04 + [ssh-keygen.1] + add -Q to the options list; ok djm + - jmc@cvs.openbsd.org 2013/01/18 21:48:43 + [ssh-keygen.1] + command-line (adj.) -> command line (n.); + - jmc@cvs.openbsd.org 2013/01/19 07:13:25 + [ssh-keygen.1] + fix some formatting; ok djm + - markus@cvs.openbsd.org 2013/01/19 12:34:55 + [krl.c] + RB_INSERT does not remove existing elments; ok djm@ + - (djm) [openbsd-compat/sys-tree.h] Sync with OpenBSD. krl.c needs newer + version. + - (djm) [regress/krl.sh] replacement for jot; most platforms lack it + +20130118 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/01/17 23:00:01 + [auth.c key.c key.h ssh-keygen.1 ssh-keygen.c sshd_config.5] + [krl.c krl.h PROTOCOL.krl] + add support for Key Revocation Lists (KRLs). These are a compact way to + represent lists of revoked keys and certificates, taking as little as + a single bit of incremental cost to revoke a certificate by serial number. + KRLs are loaded via the existing RevokedKeys sshd_config option. + feedback and ok markus@ + - djm@cvs.openbsd.org 2013/01/18 00:45:29 + [regress/Makefile regress/cert-userkey.sh regress/krl.sh] + Tests for Key Revocation Lists (KRLs) + - djm@cvs.openbsd.org 2013/01/18 03:00:32 + [krl.c] + fix KRL generation bug for list sections + +20130117 + - (djm) [regress/cipher-speed.sh regress/integrity.sh regress/try-ciphers.sh] + check for GCM support before testing GCM ciphers. + +20130112 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2013/01/12 11:22:04 + [cipher.c] + improve error message for integrity failure in AES-GCM modes; ok markus@ + - djm@cvs.openbsd.org 2013/01/12 11:23:53 + [regress/cipher-speed.sh regress/integrity.sh regress/try-ciphers.sh] + test AES-GCM modes; feedback markus@ + - (djm) [regress/integrity.sh] repair botched merge + +20130109 + - (djm) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2012/12/14 05:26:43 + [auth.c] + use correct string in error message; from rustybsd at gmx.fr + - djm@cvs.openbsd.org 2013/01/02 00:32:07 + [clientloop.c mux.c] + channel_setup_local_fwd_listener() returns 0 on failure, not -ve + bz#2055 reported by mathieu.lacage AT gmail.com + - djm@cvs.openbsd.org 2013/01/02 00:33:49 + [PROTOCOL.agent] + correct format description for SSH_AGENTC_ADD_RSA_ID_CONSTRAINED + bz#2051 from david AT lechnology.com + - djm@cvs.openbsd.org 2013/01/03 05:49:36 + [servconf.h] + add a couple of ServerOptions members that should be copied to the privsep + child (for consistency, in this case they happen only to be accessed in + the monitor); ok dtucker@ + - djm@cvs.openbsd.org 2013/01/03 12:49:01 + [PROTOCOL] + fix description of MAC calculation for EtM modes; ok markus@ + - djm@cvs.openbsd.org 2013/01/03 12:54:49 + [sftp-server.8 sftp-server.c] + allow specification of an alternate start directory for sftp-server(8) + "I like this" markus@ + - djm@cvs.openbsd.org 2013/01/03 23:22:58 + [ssh-keygen.c] + allow fingerprinting of keys hosted in PKCS#11 tokens: ssh-keygen -lD ... ok markus@ - - jmc@cvs.openbsd.org 2010/09/22 08:30:08 - [ssh.1 ssh_config.5] - ssh.1: add kexalgorithms to the -o list - ssh_config.5: format the kexalgorithms in a more consistent - (prettier!) way + - jmc@cvs.openbsd.org 2013/01/04 19:26:38 + [sftp-server.8 sftp-server.c] + sftp-server.8: add argument name to -d + sftp-server.c: add -d to usage() ok djm - - djm@cvs.openbsd.org 2010/09/22 22:58:51 - [atomicio.c atomicio.h misc.c misc.h scp.c sftp-client.c] - [sftp-client.h sftp.1 sftp.c] - add an option per-read/write callback to atomicio + - markus@cvs.openbsd.org 2013/01/08 18:49:04 + [PROTOCOL authfile.c cipher.c cipher.h kex.c kex.h monitor_wrap.c] + [myproposal.h packet.c ssh_config.5 sshd_config.5] + support AES-GCM as defined in RFC 5647 (but with simpler KEX handling) + ok and feedback djm@ + - djm@cvs.openbsd.org 2013/01/09 05:40:17 + [ssh-keygen.c] + correctly initialise fingerprint type for fingerprinting PKCS#11 keys + - (djm) [cipher.c configure.ac openbsd-compat/openssl-compat.h] + Fix merge botch, automatically detect AES-GCM in OpenSSL, move a little + cipher compat code to openssl-compat.h - factor out bandwidth limiting code from scp(1) into a generic bandwidth - limiter that can be attached using the atomicio callback mechanism +20121217 + - (dtucker) [Makefile.in] Add some scaffolding so that the new regress + tests will work with VPATH directories. - add a bandwidth limit option to sftp(1) using the above - "very nice" markus@ - - jmc@cvs.openbsd.org 2010/09/23 13:34:43 - [sftp.c] - add [-l limit] to usage(); - - jmc@cvs.openbsd.org 2010/09/23 13:36:46 - [scp.1 sftp.1] - add KexAlgorithms to the -o list; - -20100910 - - (dtucker) [openbsd-compat/port-linux.c] Check is_selinux_enabled for exact - return code since it can apparently return -1 under some conditions. From - openssh bugs werbittewas de, ok djm@ - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/08/31 12:33:38 - [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c] - reintroduce commit from tedu@, which I pulled out for release - engineering: - OpenSSL_add_all_algorithms is the name of the function we have a - man page for, so use that. ok djm - - jmc@cvs.openbsd.org 2010/08/31 17:40:54 - [ssh-agent.1] - fix some macro abuse; - - jmc@cvs.openbsd.org 2010/08/31 21:14:58 - [ssh.1] - small text tweak to accommodate previous; - - naddy@cvs.openbsd.org 2010/09/01 15:21:35 - [servconf.c] - pick up ECDSA host key by default; ok djm@ - - markus@cvs.openbsd.org 2010/09/02 16:07:25 - [ssh-keygen.c] - permit -b 256, 384 or 521 as key size for ECDSA; ok djm@ - - markus@cvs.openbsd.org 2010/09/02 16:08:39 - [ssh.c] - unbreak ControlPersist=yes for ControlMaster=yes; ok djm@ - - naddy@cvs.openbsd.org 2010/09/02 17:21:50 +20121213 + - (djm) OpenBSD CVS Sync + - markus@cvs.openbsd.org 2012/12/12 16:45:52 + [packet.c] + reset incoming_packet buffer for each new packet in EtM-case, too; + this happens if packets are parsed only parially (e.g. ignore + messages sent when su/sudo turn off echo); noted by sthen/millert + - naddy@cvs.openbsd.org 2012/12/12 16:46:10 + [cipher.c] + use OpenSSL's EVP_aes_{128,192,256}_ctr() API and remove our hand-rolled + counter mode code; ok djm@ + - (djm) [configure.ac cipher-ctr.c] Adapt EVP AES CTR change to retain our + compat code for older OpenSSL + - (djm) [cipher.c] Fix missing prototype for compat code + +20121212 + - (djm) OpenBSD CVS Sync + - markus@cvs.openbsd.org 2012/12/11 22:16:21 + [monitor.c] + drain the log messages after receiving the keystate from the unpriv + child. otherwise it might block while sending. ok djm@ + - markus@cvs.openbsd.org 2012/12/11 22:31:18 + [PROTOCOL authfile.c cipher.c cipher.h kex.h mac.c myproposal.h] + [packet.c ssh_config.5 sshd_config.5] + add encrypt-then-mac (EtM) modes to openssh by defining new mac algorithms + that change the packet format and compute the MAC over the encrypted + message (including the packet size) instead of the plaintext data; + these EtM modes are considered more secure and used by default. + feedback and ok djm@ + - sthen@cvs.openbsd.org 2012/12/11 22:51:45 + [mac.c] + fix typo, s/tem/etm in hmac-ripemd160-tem. ok markus@ + - markus@cvs.openbsd.org 2012/12/11 22:32:56 + [regress/try-ciphers.sh] + add etm modes + - markus@cvs.openbsd.org 2012/12/11 22:42:11 + [regress/Makefile regress/modpipe.c regress/integrity.sh] + test the integrity of the packets; with djm@ + - markus@cvs.openbsd.org 2012/12/11 23:12:13 + [try-ciphers.sh] + add hmac-ripemd160-etm@openssh.com + - (djm) [mac.c] fix merge botch + - (djm) [regress/Makefile regress/integrity.sh] Make the integrity.sh test + work on platforms without 'jot' + - (djm) [regress/integrity.sh] Fix awk quoting, packet length skip + - (djm) [regress/Makefile] fix t-exec rule + +20121207 + - (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2012/12/06 06:06:54 + [regress/keys-command.sh] + Fix some problems with the keys-command test: + - use string comparison rather than numeric comparison + - check for existing KEY_COMMAND file and don't clobber if it exists + - clean up KEY_COMMAND file if we do create it. + - check that KEY_COMMAND is executable (which it won't be if eg /var/run + is mounted noexec). + ok djm. + - jmc@cvs.openbsd.org 2012/12/03 08:33:03 + [ssh-add.1 sshd_config.5] + tweak previous; + - markus@cvs.openbsd.org 2012/12/05 15:42:52 + [ssh-add.c] + prevent double-free of comment; ok djm@ + - dtucker@cvs.openbsd.org 2012/12/07 01:51:35 + [serverloop.c] + Cast signal to int for logging. A no-op on openbsd (they're always ints) + but will prevent warnings in portable. ok djm@ + +20121205 + - (tim) [defines.h] Some platforms are missing ULLONG_MAX. Feedback djm@. + +20121203 + - (djm) [openbsd-compat/sys-queue.h] Sync with OpenBSD to get + TAILQ_FOREACH_SAFE needed for upcoming changes. + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2012/12/02 20:26:11 + [ssh_config.5 sshconnect2.c] + Make IdentitiesOnly apply to keys obtained from a PKCS11Provider. + This allows control of which keys are offered from tokens using + IdentityFile. ok markus@ + - djm@cvs.openbsd.org 2012/12/02 20:42:15 + [ssh-add.1 ssh-add.c] + make deleting explicit keys "ssh-add -d" symmetric with adding keys - + try to delete the corresponding certificate too and respect the -k option + to allow deleting of the key only; feedback and ok markus@ + - djm@cvs.openbsd.org 2012/12/02 20:46:11 + [auth-options.c channels.c servconf.c servconf.h serverloop.c session.c] + [sshd_config.5] + make AllowTcpForwarding accept "local" and "remote" in addition to its + current "yes"/"no" to allow the server to specify whether just local or + remote TCP forwarding is enabled. ok markus@ + - dtucker@cvs.openbsd.org 2012/10/05 02:20:48 + [regress/cipher-speed.sh regress/try-ciphers.sh] + Add umac-128@openssh.com to the list of MACs to be tested + - djm@cvs.openbsd.org 2012/10/19 05:10:42 + [regress/cert-userkey.sh] + include a serial number when generating certs + - djm@cvs.openbsd.org 2012/11/22 22:49:30 + [regress/Makefile regress/keys-command.sh] + regress for AuthorizedKeysCommand; hints from markus@ + - djm@cvs.openbsd.org 2012/12/02 20:47:48 + [Makefile regress/forward-control.sh] + regress for AllowTcpForwarding local/remote; ok markus@ + - djm@cvs.openbsd.org 2012/12/03 00:14:06 + [auth2-chall.c ssh-keygen.c] + Fix compilation with -Wall -Werror (trivial type fixes) + - (djm) [configure.ac] Turn on -g for gcc compilers. Helps pre-installation + debugging. ok dtucker@ + - (djm) [configure.ac] Revert previous. configure.ac already does this + for us. + +20121114 + - (djm) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2012/11/14 02:24:27 + [auth2-pubkey.c] + fix username passed to helper program + prepare stdio fds before closefrom() + spotted by landry@ + - djm@cvs.openbsd.org 2012/11/14 02:32:15 [ssh-keygen.c] - Switch ECDSA default key size to 256 bits, which according to RFC5656 - should still be better than our current RSA-2048 default. - ok djm@, markus@ - - jmc@cvs.openbsd.org 2010/09/03 11:09:29 - [scp.1] - add an EXIT STATUS section for /usr/bin; - - jmc@cvs.openbsd.org 2010/09/04 09:38:34 - [ssh-add.1 ssh.1] - two more EXIT STATUS sections; - - naddy@cvs.openbsd.org 2010/09/06 17:10:19 - [sshd_config] - add ssh_host_ecdsa_key to /etc; from Mattieu Baptiste - <mattieu.b@gmail.com> - ok deraadt@ - - djm@cvs.openbsd.org 2010/09/08 03:54:36 - [authfile.c] - typo - - deraadt@cvs.openbsd.org 2010/09/08 04:13:31 - [compress.c] - work around name-space collisions some buggy compilers (looking at you - gcc, at least in earlier versions, but this does not forgive your current - transgressions) seen between zlib and openssl - ok djm - - djm@cvs.openbsd.org 2010/09/09 10:45:45 - [kex.c kex.h kexecdh.c key.c key.h monitor.c ssh-ecdsa.c] - ECDH/ECDSA compliance fix: these methods vary the hash function they use - (SHA256/384/512) depending on the length of the curve in use. The previous - code incorrectly used SHA256 in all cases. - - This fix will cause authentication failure when using 384 or 521-bit curve - keys if one peer hasn't been upgraded and the other has. (256-bit curve - keys work ok). In particular you may need to specify HostkeyAlgorithms - when connecting to a server that has not been upgraded from an upgraded - client. - - ok naddy@ - - (djm) [authfd.c authfile.c bufec.c buffer.h configure.ac kex.h kexecdh.c] - [kexecdhc.c kexecdhs.c key.c key.h myproposal.h packet.c readconf.c] - [ssh-agent.c ssh-ecdsa.c ssh-keygen.c ssh.c] Disable ECDH and ECDSA on - platforms that don't have the requisite OpenSSL support. ok dtucker@ - - (dtucker) [kex.h key.c packet.h ssh-agent.c ssh.c] A few more ECC ifdefs - for missing headers and compiler warnings. - -20100831 - - OpenBSD CVS Sync - - jmc@cvs.openbsd.org 2010/08/08 19:36:30 - [ssh-keysign.8 ssh.1 sshd.8] - use the same template for all FILES sections; i.e. -compact/.Pp where we - have multiple items, and .Pa for path names; - - tedu@cvs.openbsd.org 2010/08/12 23:34:39 - [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c] - OpenSSL_add_all_algorithms is the name of the function we have a man page - for, so use that. ok djm - - djm@cvs.openbsd.org 2010/08/16 04:06:06 - [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c] - backout previous temporarily; discussed with deraadt@ - - djm@cvs.openbsd.org 2010/08/31 09:58:37 - [auth-options.c auth1.c auth2.c bufaux.c buffer.h kex.c key.c packet.c] - [packet.h ssh-dss.c ssh-rsa.c] - Add buffer_get_cstring() and related functions that verify that the - string extracted from the buffer contains no embedded \0 characters* - This prevents random (possibly malicious) crap from being appended to - strings where it would not be noticed if the string is used with - a string(3) function. - - Use the new API in a few sensitive places. - - * actually, we allow a single one at the end of the string for now because - we don't know how many deployed implementations get this wrong, but don't - count on this to remain indefinitely. - - djm@cvs.openbsd.org 2010/08/31 11:54:45 - [PROTOCOL PROTOCOL.agent PROTOCOL.certkeys auth2-jpake.c authfd.c] - [authfile.c buffer.h dns.c kex.c kex.h key.c key.h monitor.c] - [monitor_wrap.c myproposal.h packet.c packet.h pathnames.h readconf.c] - [ssh-add.1 ssh-add.c ssh-agent.1 ssh-agent.c ssh-keygen.1 ssh-keygen.c] - [ssh-keyscan.1 ssh-keyscan.c ssh-keysign.8 ssh.1 ssh.c ssh2.h] - [ssh_config.5 sshconnect.c sshconnect2.c sshd.8 sshd.c sshd_config.5] - [uuencode.c uuencode.h bufec.c kexecdh.c kexecdhc.c kexecdhs.c ssh-ecdsa.c] - Implement Elliptic Curve Cryptography modes for key exchange (ECDH) and - host/user keys (ECDSA) as specified by RFC5656. ECDH and ECDSA offer - better performance than plain DH and DSA at the same equivalent symmetric - key length, as well as much shorter keys. - - Only the mandatory sections of RFC5656 are implemented, specifically the - three REQUIRED curves nistp256, nistp384 and nistp521 and only ECDH and - ECDSA. Point compression (optional in RFC5656 is NOT implemented). + allow the full range of unsigned serial numbers; 'fine' deraadt@ + - djm@cvs.openbsd.org 2012/12/02 20:34:10 + [auth.c auth.h auth1.c auth2-chall.c auth2-gss.c auth2-jpake.c auth2.c] + [monitor.c monitor.h] + Fixes logging of partial authentication when privsep is enabled + Previously, we recorded "Failed xxx" since we reset authenticated before + calling auth_log() in auth2.c. This adds an explcit "Partial" state. - Certificate host and user keys using the new ECDSA key types are supported. + Add a "submethod" to auth_log() to report which submethod is used + for keyboard-interactive. - Note that this code has not been tested for interoperability and may be - subject to change. + Fix multiple authentication when one of the methods is + keyboard-interactive. + ok markus@ + - dtucker@cvs.openbsd.org 2012/10/05 02:05:30 + [regress/multiplex.sh] + Use 'kill -0' to test for the presence of a pid since it's more portable + +20121107 + - (djm) OpenBSD CVS Sync + - eric@cvs.openbsd.org 2011/11/28 08:46:27 + [moduli.5] + fix formula + ok djm@ + - jmc@cvs.openbsd.org 2012/09/26 17:34:38 + [moduli.5] + last stage of rfc changes, using consistent Rs/Re blocks, and moving the + references into a STANDARDS section; + +20121105 + - (dtucker) [uidswap.c openbsd-compat/Makefile.in + openbsd-compat/bsd-setres_id.c openbsd-compat/bsd-setres_id.h + openbsd-compat/openbsd-compat.h] Move the fallback code for setting uids + and gids from uidswap.c to the compat library, which allows it to work with + the new setresuid calls in auth2-pubkey. with tim@, ok djm@ + - (dtucker) [auth2-pubkey.c] wrap paths.h in an ifdef for platforms that + don't have it. Spotted by tim@. + +20121104 + - (djm) OpenBSD CVS Sync + - jmc@cvs.openbsd.org 2012/10/31 08:04:50 + [sshd_config.5] + tweak previous; + - djm@cvs.openbsd.org 2012/11/04 10:38:43 + [auth2-pubkey.c sshd.c sshd_config.5] + Remove default of AuthorizedCommandUser. Administrators are now expected + to explicitly specify a user. feedback and ok markus@ + - djm@cvs.openbsd.org 2012/11/04 11:09:15 + [auth.h auth1.c auth2.c monitor.c servconf.c servconf.h sshd.c] + [sshd_config.5] + Support multiple required authentication via an AuthenticationMethods + option. This option lists one or more comma-separated lists of + authentication method names. Successful completion of all the methods in + any list is required for authentication to complete; feedback and ok markus@ - - (djm) [Makefile.in] Add new ECC files - - (djm) [bufec.c kexecdh.c kexecdhc.c kexecdhs.c ssh-ecdsa.c] include - includes.h - -20100827 - - (dtucker) [contrib/redhat/sshd.init] Bug #1810: initlog is deprecated, - remove. Patch from martynas at venck us - -20100823 - - (djm) Release OpenSSH-5.6p1 - -20100816 - - (dtucker) [configure.ac openbsd-compat/Makefile.in - openbsd-compat/openbsd-compat.h openbsd-compat/strptime.c] Add strptime to - the compat library which helps on platforms like old IRIX. Based on work - by djm, tested by Tom Christensen. - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/08/12 21:49:44 - [ssh.c] - close any extra file descriptors inherited from parent at start and - reopen stdin/stdout to /dev/null when forking for ControlPersist. - - prevents tools that fork and run a captive ssh for communication from - failing to exit when the ssh completes while they wait for these fds to - close. The inherited fds may persist arbitrarily long if a background - mux master has been started by ControlPersist. cvs and scp were effected - by this. - - "please commit" markus@ - - (djm) [regress/README.regress] typo - -20100812 - - (tim) [regress/login-timeout.sh regress/reconfigure.sh regress/reexec.sh - regress/test-exec.sh] Under certain conditions when testing with sudo - tests would fail because the pidfile could not be read by a regular user. - "cat: cannot open ...../regress/pidfile: Permission denied (error 13)" - Make sure cat is run by $SUDO. no objection from me. djm@ - - (tim) [auth.c] add cast to quiet compiler. Change only affects SVR5 systems. - -20100809 - - (djm) bz#1561: don't bother setting IFF_UP on tun(4) device if it is - already set. Makes FreeBSD user openable tunnels useful; patch from - richard.burakowski+ossh AT mrburak.net, ok dtucker@ - - (dtucker) bug #1530: strip trailing ":" from hostname in ssh-copy-id. - based in part on a patch from Colin Watson, ok djm@ - -20100809 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/08/08 16:26:42 - [version.h] - crank to 5.6 - - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec] - [contrib/suse/openssh.spec] Crank version numbers -20100805 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/08/04 05:37:01 - [ssh.1 ssh_config.5 sshd.8] - Remove mentions of weird "addr/port" alternate address format for IPv6 - addresses combinations. It hasn't worked for ages and we have supported - the more commen "[addr]:port" format for a long time. ok jmc@ markus@ - - djm@cvs.openbsd.org 2010/08/04 05:40:39 - [PROTOCOL.certkeys ssh-keygen.c] - tighten the rules for certificate encoding by requiring that options - appear in lexical order and make our ssh-keygen comply. ok markus@ - - djm@cvs.openbsd.org 2010/08/04 05:42:47 - [auth.c auth2-hostbased.c authfile.c authfile.h ssh-keysign.8] - [ssh-keysign.c ssh.c] - enable certificates for hostbased authentication, from Iain Morgan; - "looks ok" markus@ - - djm@cvs.openbsd.org 2010/08/04 05:49:22 - [authfile.c] - commited the wrong version of the hostbased certificate diff; this - version replaces some strlc{py,at} verbosity with xasprintf() at - the request of markus@ - - djm@cvs.openbsd.org 2010/08/04 06:07:11 - [ssh-keygen.1 ssh-keygen.c] - Support CA keys in PKCS#11 tokens; feedback and ok markus@ - - djm@cvs.openbsd.org 2010/08/04 06:08:40 - [ssh-keysign.c] - clean for -Wuninitialized (Id sync only; portable had this change) - - djm@cvs.openbsd.org 2010/08/05 13:08:42 - [channels.c] - Fix a trio of bugs in the local/remote window calculation for datagram - data channels (i.e. TunnelForward): - - Calculate local_consumed correctly in channel_handle_wfd() by measuring - the delta to buffer_len(c->output) from when we start to when we finish. - The proximal problem here is that the output_filter we use in portable - modified the length of the dequeued datagram (to futz with the headers - for !OpenBSD). - - In channel_output_poll(), don't enqueue datagrams that won't fit in the - peer's advertised packet size (highly unlikely to ever occur) or which - won't fit in the peer's remaining window (more likely). - - In channel_input_data(), account for the 4-byte string header in - datagram packets that we accept from the peer and enqueue in c->output. +20121030 + - (djm) OpenBSD CVS Sync + - markus@cvs.openbsd.org 2012/10/05 12:34:39 + [sftp.c] + fix signed vs unsigned warning; feedback & ok: djm@ + - djm@cvs.openbsd.org 2012/10/30 21:29:55 + [auth-rsa.c auth.c auth.h auth2-pubkey.c servconf.c servconf.h] + [sshd.c sshd_config sshd_config.5] + new sshd_config option AuthorizedKeysCommand to support fetching + authorized_keys from a command in addition to (or instead of) from + the filesystem. The command is run as the target server user unless + another specified via a new AuthorizedKeysCommandUser option. - report, analysis and testing 2/3 cases from wierbows AT us.ibm.com; - "looks good" markus@ + patch originally by jchadima AT redhat.com, reworked by me; feedback + and ok markus@ -20100803 - - (dtucker) [monitor.c] Bug #1795: Initialize the values to be returned from - PAM to sane values in case the PAM method doesn't write to them. Spotted by - Bitman Zhou, ok djm@. - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/07/16 04:45:30 - [ssh-keygen.c] - avoid bogus compiler warning - - djm@cvs.openbsd.org 2010/07/16 14:07:35 - [ssh-rsa.c] - more timing paranoia - compare all parts of the expected decrypted - data before returning. AFAIK not exploitable in the SSH protocol. - "groovy" deraadt@ - - djm@cvs.openbsd.org 2010/07/19 03:16:33 - [sftp-client.c] - bz#1797: fix swapped args in upload_dir_internal(), breaking recursive - upload depth checks and causing verbose printing of transfers to always - be turned on; patch from imorgan AT nas.nasa.gov - - djm@cvs.openbsd.org 2010/07/19 09:15:12 - [clientloop.c readconf.c readconf.h ssh.c ssh_config.5] - add a "ControlPersist" option that automatically starts a background - ssh(1) multiplex master when connecting. This connection can stay alive - indefinitely, or can be set to automatically close after a user-specified - duration of inactivity. bz#1330 - patch by dwmw2 AT infradead.org, but - further hacked on by wmertens AT cisco.com, apb AT cequrux.com, - martin-mindrot-bugzilla AT earth.li and myself; "looks ok" markus@ - - djm@cvs.openbsd.org 2010/07/21 02:10:58 - [misc.c] - sync timingsafe_bcmp() with the one dempsky@ committed to sys/lib/libkern - - dtucker@cvs.openbsd.org 2010/07/23 08:49:25 - [ssh.1] - Ciphers is documented in ssh_config(5) these days - -20100819 - - (dtucker) [contrib/ssh-copy-ud.1] Bug #1786: update ssh-copy-id.1 with more - details about its behaviour WRT existing directories. Patch from - asguthrie at gmail com, ok djm. +20121019 + - (tim) [buildpkg.sh.in] Double up on some backslashes so they end up in + the generated file as intended. -20100716 - - (djm) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/07/02 04:32:44 - [misc.c] - unbreak strdelim() skipping past quoted strings, e.g. - AllowUsers "blah blah" blah - was broken; report and fix in bz#1757 from bitman.zhou AT centrify.com - ok dtucker; - - djm@cvs.openbsd.org 2010/07/12 22:38:52 - [ssh.c] - Make ExitOnForwardFailure work with fork-after-authentication ("ssh -f") - for protocol 2. ok markus@ - - djm@cvs.openbsd.org 2010/07/12 22:41:13 - [ssh.c ssh_config.5] - expand %h to the hostname in ssh_config Hostname options. While this - sounds useless, it is actually handy for working with unqualified - hostnames: - - Host *.* - Hostname %h - Host * - Hostname %h.example.org - - "I like it" markus@ - - djm@cvs.openbsd.org 2010/07/13 11:52:06 - [auth-rsa.c channels.c jpake.c key.c misc.c misc.h monitor.c] - [packet.c ssh-rsa.c] - implement a timing_safe_cmp() function to compare memory without leaking - timing information by short-circuiting like memcmp() and use it for - some of the more sensitive comparisons (though nothing high-value was - readily attackable anyway); "looks ok" markus@ - - djm@cvs.openbsd.org 2010/07/13 23:13:16 - [auth-rsa.c channels.c jpake.c key.c misc.c misc.h monitor.c packet.c] - [ssh-rsa.c] - s/timing_safe_cmp/timingsafe_bcmp/g - - jmc@cvs.openbsd.org 2010/07/14 17:06:58 +20121005 + - (dtucker) OpenBSD CVS Sync + - djm@cvs.openbsd.org 2012/09/17 09:54:44 + [sftp.c] + an XXX for later + - markus@cvs.openbsd.org 2012/09/17 13:04:11 + [packet.c] + clear old keys on rekeing; ok djm + - dtucker@cvs.openbsd.org 2012/09/18 10:36:12 + [sftp.c] + Add bounds check on sftp tab-completion. Part of a patch from from + Jean-Marc Robert via tech@, ok djm + - dtucker@cvs.openbsd.org 2012/09/21 10:53:07 + [sftp.c] + Fix improper handling of absolute paths when PWD is part of the completed + path. Patch from Jean-Marc Robert via tech@, ok djm. + - dtucker@cvs.openbsd.org 2012/09/21 10:55:04 + [sftp.c] + Fix handling of filenames containing escaped globbing characters and + escape "#" and "*". Patch from Jean-Marc Robert via tech@, ok djm. + - jmc@cvs.openbsd.org 2012/09/26 16:12:13 [ssh.1] - finally ssh synopsis looks nice again! this commit just removes a ton of - hacks we had in place to make it work with old groff; - - schwarze@cvs.openbsd.org 2010/07/15 21:20:38 - [ssh-keygen.1] - repair incorrect block nesting, which screwed up indentation; - problem reported and fix OK by jmc@ + last stage of rfc changes, using consistent Rs/Re blocks, and moving the + references into a STANDARDS section; + - naddy@cvs.openbsd.org 2012/10/01 13:59:51 + [monitor_wrap.c] + pasto; ok djm@ + - djm@cvs.openbsd.org 2012/10/02 07:07:45 + [ssh-keygen.c] + fix -z option, broken in revision 1.215 + - markus@cvs.openbsd.org 2012/10/04 13:21:50 + [myproposal.h ssh_config.5 umac.h sshd_config.5 ssh.1 sshd.8 mac.c] + add umac128 variant; ok djm@ at n2k12 + - dtucker@cvs.openbsd.org 2012/09/06 04:11:07 + [regress/try-ciphers.sh] + Restore missing space. (Id sync only). + - dtucker@cvs.openbsd.org 2012/09/09 11:51:25 + [regress/multiplex.sh] + Add test for ssh -Ostop + - dtucker@cvs.openbsd.org 2012/09/10 00:49:21 + [regress/multiplex.sh] + Log -O cmd output to the log file and make logging consistent with the + other tests. Test clean shutdown of an existing channel when testing + "stop". + - dtucker@cvs.openbsd.org 2012/09/10 01:51:19 + [regress/multiplex.sh] + use -Ocheck and waiting for completions by PID to make multiplexing test + less racy and (hopefully) more reliable on slow hardware. + - [Makefile umac.c] Add special-case target to build umac128.o. + - [umac.c] Enforce allowed umac output sizes. From djm@. + - [Makefile.in] "Using $< in a non-suffix rule context is a GNUmake idiom". + +20120917 + - (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2012/09/13 23:37:36 + [servconf.c] + Fix comment line length + - markus@cvs.openbsd.org 2012/09/14 16:51:34 + [sshconnect.c] + remove unused variable -20100714 - - (tim) [contrib/redhat/openssh.spec] Bug 1796: Test for skip_x11_askpass - (line 77) should have been for no_x11_askpass. +20120907 + - (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2012/09/06 09:50:13 + [clientloop.c] + Make the escape command help (~?) context sensitive so that only commands + that will work in the current session are shown. ok markus@ + - jmc@cvs.openbsd.org 2012/09/06 13:57:42 + [ssh.1] + missing letter in previous; + - dtucker@cvs.openbsd.org 2012/09/07 00:30:19 + [clientloop.c] + Print '^Z' instead of a raw ^Z when the sequence is not supported. ok djm@ + - dtucker@cvs.openbsd.org 2012/09/07 01:10:21 + [clientloop.c] + Merge escape help text for ~v and ~V; ok djm@ + - dtucker@cvs.openbsd.org 2012/09/07 06:34:21 + [clientloop.c] + when muxmaster is run with -N, make it shut down gracefully when a client + sends it "-O stop" rather than hanging around (bz#1985). ok djm@ -20100702 - - (djm) OpenBSD CVS Sync - - jmc@cvs.openbsd.org 2010/06/26 00:57:07 - [ssh_config.5] - tweak previous; - - djm@cvs.openbsd.org 2010/06/26 23:04:04 - [ssh.c] - oops, forgot to #include <canohost.h>; spotted and patch from chl@ - - djm@cvs.openbsd.org 2010/06/29 23:15:30 - [ssh-keygen.1 ssh-keygen.c] - allow import (-i) and export (-e) of PEM and PKCS#8 encoded keys; - bz#1749; ok markus@ - - djm@cvs.openbsd.org 2010/06/29 23:16:46 - [auth2-pubkey.c sshd_config.5] - allow key options (command="..." and friends) in AuthorizedPrincipals; - ok markus@ - - jmc@cvs.openbsd.org 2010/06/30 07:24:25 +20120906 + - (dtucker) OpenBSD CVS Sync + - jmc@cvs.openbsd.org 2012/08/15 18:25:50 [ssh-keygen.1] - tweak previous; - - jmc@cvs.openbsd.org 2010/06/30 07:26:03 + a little more info on certificate validity; + requested by Ross L Richardson, and provided by djm + - dtucker@cvs.openbsd.org 2012/08/17 00:45:45 + [clientloop.c clientloop.h mux.c] + Force a clean shutdown of ControlMaster client sessions when the ~. escape + sequence is used. This means that ~. should now work in mux clients even + if the server is no longer responding. Found by tedu, ok djm. + - djm@cvs.openbsd.org 2012/08/17 01:22:56 + [kex.c] + add some comments about better handling first-KEX-follows notifications + from the server. Nothing uses these right now. No binary change + - djm@cvs.openbsd.org 2012/08/17 01:25:58 [ssh-keygen.c] - sort usage(); - - jmc@cvs.openbsd.org 2010/06/30 07:28:34 - [sshd_config.5] - tweak previous; - - millert@cvs.openbsd.org 2010/07/01 13:06:59 - [scp.c] - Fix a longstanding problem where if you suspend scp at the - password/passphrase prompt the terminal mode is not restored. - OK djm@ - - phessler@cvs.openbsd.org 2010/06/27 19:19:56 - [regress/Makefile] - fix how we run the tests so we can successfully use SUDO='sudo -E' - in our env - - djm@cvs.openbsd.org 2010/06/29 23:59:54 - [cert-userkey.sh] - regress tests for key options in AuthorizedPrincipals - -20100627 - - (tim) [openbsd-compat/port-uw.c] Reorder includes. auth-options.h now needs - key.h. - -20100626 + print details of which host lines were deleted when using + "ssh-keygen -R host"; ok markus@ + - djm@cvs.openbsd.org 2012/08/17 01:30:00 + [compat.c sshconnect.c] + Send client banner immediately, rather than waiting for the server to + move first for SSH protocol 2 connections (the default). Patch based on + one in bz#1999 by tls AT panix.com, feedback dtucker@ ok markus@ + - dtucker@cvs.openbsd.org 2012/09/06 04:37:39 + [clientloop.c log.c ssh.1 log.h] + Add ~v and ~V escape sequences to raise and lower the logging level + respectively. Man page help from jmc, ok deraadt jmc + +20120830 + - (dtucker) [moduli] Import new moduli file. + +20120828 + - (djm) Release openssh-6.1 + +20120828 + - (dtucker) [openbsd-compat/bsd-cygwin_util.h] define WIN32_LEAN_AND_MEAN + for compatibility with future mingw-w64 headers. Patch from vinschen at + redhat com. + +20120822 + - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec] + [contrib/suse/openssh.spec] Update version numbers + +20120731 - (djm) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/05/21 05:00:36 - [misc.c] - colon() returns char*, so s/return (0)/return NULL/ - - markus@cvs.openbsd.org 2010/06/08 21:32:19 - [ssh-pkcs11.c] - check length of value returned C_GetAttributValue for != 0 - from mdrtbugzilla@codefive.co.uk; bugzilla #1773; ok dtucker@ - - djm@cvs.openbsd.org 2010/06/17 07:07:30 - [mux.c] - Correct sizing of object to be allocated by calloc(), replacing - sizeof(state) with sizeof(*state). This worked by accident since - the struct contained a single int at present, but could have broken - in the future. patch from hyc AT symas.com - - djm@cvs.openbsd.org 2010/06/18 00:58:39 - [sftp.c] - unbreak ls in working directories that contains globbing characters in - their pathnames. bz#1655 reported by vgiffin AT apple.com - - djm@cvs.openbsd.org 2010/06/18 03:16:03 - [session.c] - Missing check for chroot_director == "none" (we already checked against - NULL); bz#1564 from Jan.Pechanec AT Sun.COM - - djm@cvs.openbsd.org 2010/06/18 04:43:08 - [sftp-client.c] - fix memory leak in do_realpath() error path; bz#1771, patch from - anicka AT suse.cz - - djm@cvs.openbsd.org 2010/06/22 04:22:59 - [servconf.c sshd_config.5] - expose some more sshd_config options inside Match blocks: - AuthorizedKeysFile AuthorizedPrincipalsFile - HostbasedUsesNameFromPacketOnly PermitTunnel - bz#1764; feedback from imorgan AT nas.nasa.gov; ok dtucker@ - - djm@cvs.openbsd.org 2010/06/22 04:32:06 - [ssh-keygen.c] - standardise error messages when attempting to open private key - files to include "progname: filename: error reason" - bz#1783; ok dtucker@ - - djm@cvs.openbsd.org 2010/06/22 04:49:47 - [auth.c] - queue auth debug messages for bad ownership or permissions on the user's - keyfiles. These messages will be sent after the user has successfully - authenticated (where our client will display them with LogLevel=debug). - bz#1554; ok dtucker@ - - djm@cvs.openbsd.org 2010/06/22 04:54:30 - [ssh-keyscan.c] - replace verbose and overflow-prone Linebuf code with read_keyfile_line() - based on patch from joachim AT joachimschipper.nl; bz#1565; ok dtucker@ - - djm@cvs.openbsd.org 2010/06/22 04:59:12 - [session.c] - include the user name on "subsystem request for ..." log messages; - bz#1571; ok dtucker@ - - djm@cvs.openbsd.org 2010/06/23 02:59:02 + - jmc@cvs.openbsd.org 2012/07/06 06:38:03 [ssh-keygen.c] - fix printing of extensions in v01 certificates that I broke in r1.190 - - djm@cvs.openbsd.org 2010/06/25 07:14:46 - [channels.c mux.c readconf.c readconf.h ssh.h] - bz#1327: remove hardcoded limit of 100 permitopen clauses and port - forwards per direction; ok markus@ stevesk@ - - djm@cvs.openbsd.org 2010/06/25 07:20:04 - [channels.c session.c] - bz#1750: fix requirement for /dev/null inside ChrootDirectory for - internal-sftp accidentally introduced in r1.253 by removing the code - that opens and dup /dev/null to stderr and modifying the channels code - to read stderr but discard it instead; ok markus@ - - djm@cvs.openbsd.org 2010/06/25 08:46:17 - [auth1.c auth2-none.c] - skip the initial check for access with an empty password when - PermitEmptyPasswords=no; bz#1638; ok markus@ - - djm@cvs.openbsd.org 2010/06/25 23:10:30 + missing full stop in usage(); + - djm@cvs.openbsd.org 2012/07/10 02:19:15 + [servconf.c servconf.h sshd.c sshd_config] + Turn on systrace sandboxing of pre-auth sshd by default for new installs + by shipping a config that overrides the current UsePrivilegeSeparation=yes + default. Make it easier to flip the default in the future by adding too. + prodded markus@ feedback dtucker@ "get it in" deraadt@ + - dtucker@cvs.openbsd.org 2012/07/13 01:35:21 + [servconf.c] + handle long comments in config files better. bz#2025, ok markus + - markus@cvs.openbsd.org 2012/07/22 18:19:21 + [version.h] + openssh 6.1 + +20120720 + - (dtucker) Import regened moduli file. + +20120706 + - (djm) [sandbox-seccomp-filter.c] fallback to rlimit if seccomp filter is + not available. Allows use of sshd compiled on host with a filter-capable + kernel on hosts that lack the support. bz#2011 ok dtucker@ + - (djm) [configure.ac] Recursively expand $(bindir) to ensure it has no + unexpanded $(prefix) embedded. bz#2007 patch from nix-corp AT + esperi.org.uk; ok dtucker@ +- (djm) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2012/07/06 00:41:59 + [moduli.c ssh-keygen.1 ssh-keygen.c] + Add options to specify starting line number and number of lines to process + when screening moduli candidates. This allows processing of different + parts of a candidate moduli file in parallel. man page help jmc@, ok djm@ + - djm@cvs.openbsd.org 2012/07/06 01:37:21 + [mux.c] + fix memory leak of passed-in environment variables and connection + context when new session message is malformed; bz#2003 from Bert.Wesarg + AT googlemail.com + - djm@cvs.openbsd.org 2012/07/06 01:47:38 [ssh.c] - log the hostname and address that we connected to at LogLevel=verbose - after authentication is successful to mitigate "phishing" attacks by - servers with trusted keys that accept authentication silently and - automatically before presenting fake password/passphrase prompts; - "nice!" markus@ - - djm@cvs.openbsd.org 2010/06/25 23:10:30 + move setting of tty_flag to after config parsing so RequestTTY options + are correctly picked up. bz#1995 patch from przemoc AT gmail.com; + ok dtucker@ + +20120704 + - (dtucker) [configure.ac openbsd-compat/bsd-misc.h] Add setlinebuf for + platforms that don't have it. "looks good" tim@ + +20120703 + - (dtucker) [configure.ac] Detect platforms that can't use select(2) with + setrlimit(RLIMIT_NOFILE, rl_zero) and disable the rlimit sandbox on those. + - (dtucker) [configure.ac sandbox-rlimit.c] Test whether or not + setrlimit(RLIMIT_FSIZE, rl_zero) and skip it if it's not supported. Its + benefit is minor, so it's not worth disabling the sandbox if it doesn't + work. + +20120702 +- (dtucker) OpenBSD CVS Sync + - naddy@cvs.openbsd.org 2012/06/29 13:57:25 + [ssh_config.5 sshd_config.5] + match the documented MAC order of preference to the actual one; + ok dtucker@ + - markus@cvs.openbsd.org 2012/06/30 14:35:09 + [sandbox-systrace.c sshd.c] + fix a during the load of the sandbox policies (child can still make + the read-syscall and wait forever for systrace-answers) by replacing + the read/write synchronisation with SIGSTOP/SIGCONT; + report and help hshoexer@; ok djm@, dtucker@ + - dtucker@cvs.openbsd.org 2012/07/02 08:50:03 [ssh.c] - log the hostname and address that we connected to at LogLevel=verbose - after authentication is successful to mitigate "phishing" attacks by - servers with trusted keys that accept authentication silently and - automatically before presenting fake password/passphrase prompts; - "nice!" markus@ - -20100622 - - (djm) [loginrec.c] crank LINFO_NAMESIZE (username length) to 512 - bz#1579; ok dtucker - -20100618 - - (djm) [contrib/ssh-copy-id] Update key file explicitly under ~ - rather than assuming that $CWD == $HOME. bz#1500, patch from - timothy AT gelter.com - -20100617 - - (tim) [contrib/cygwin/README] Remove a reference to the obsolete - minires-devel package, and to add the reference to the libedit-devel - package since CYgwin now provides libedit. Patch from Corinna Vinschen. - -20100521 + set interactive ToS for forwarded X11 sessions. ok djm@ + - dtucker@cvs.openbsd.org 2012/07/02 12:13:26 + [ssh-pkcs11-helper.c sftp-client.c] + fix a couple of "assigned but not used" warnings. ok markus@ + - dtucker@cvs.openbsd.org 2012/07/02 14:37:06 + [regress/connect-privsep.sh] + remove exit from end of test since it prevents reporting failure + - (dtucker) [regress/reexec.sh regress/sftp-cmds.sh regress/test-exec.sh] + Move cygwin detection to test-exec and use to skip reexec test on cygwin. + - (dtucker) [regress/test-exec.sh] Correct uname for cygwin/w2k. + +20120629 + - OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2012/06/21 00:16:07 + [addrmatch.c] + fix strlcpy truncation check. from carsten at debian org, ok markus + - dtucker@cvs.openbsd.org 2012/06/22 12:30:26 + [monitor.c sshconnect2.c] + remove dead code following 'for (;;)' loops. + From Steve.McClellan at radisys com, ok markus@ + - dtucker@cvs.openbsd.org 2012/06/22 14:36:33 + [sftp.c] + Remove unused variable leftover from tab-completion changes. + From Steve.McClellan at radisys com, ok markus@ + - dtucker@cvs.openbsd.org 2012/06/26 11:02:30 + [sandbox-systrace.c] + Add mquery to the list of allowed syscalls for "UsePrivilegeSeparation + sandbox" since malloc now uses it. From johnw.mail at gmail com. + - dtucker@cvs.openbsd.org 2012/06/28 05:07:45 + [mac.c myproposal.h ssh_config.5 sshd_config.5] + Remove hmac-sha2-256-96 and hmac-sha2-512-96 MACs since they were removed + from draft6 of the spec and will not be in the RFC when published. Patch + from mdb at juniper net via bz#2023, ok markus. + - naddy@cvs.openbsd.org 2012/06/29 13:57:25 + [ssh_config.5 sshd_config.5] + match the documented MAC order of preference to the actual one; ok dtucker@ + - dtucker@cvs.openbsd.org 2012/05/13 01:42:32 + [regress/addrmatch.sh] + Add "Match LocalAddress" and "Match LocalPort" to sshd and adjust tests + to match. Feedback and ok djm@ markus@. + - djm@cvs.openbsd.org 2012/06/01 00:47:35 + [regress/multiplex.sh regress/forwarding.sh] + append to rather than truncate test log; bz#2013 from openssh AT + roumenpetrov.info + - djm@cvs.openbsd.org 2012/06/01 00:52:52 + [regress/sftp-cmds.sh] + don't delete .* on cleanup due to unintended env expansion; pointed out in + bz#2014 by openssh AT roumenpetrov.info + - dtucker@cvs.openbsd.org 2012/06/26 12:06:59 + [regress/connect-privsep.sh] + test sandbox with every malloc option + - dtucker@cvs.openbsd.org 2012/06/28 05:07:45 + [regress/try-ciphers.sh regress/cipher-speed.sh] + Remove hmac-sha2-256-96 and hmac-sha2-512-96 MACs since they were removed + from draft6 of the spec and will not be in the RFC when published. Patch + from mdb at juniper net via bz#2023, ok markus. + - (dtucker) [myproposal.h] Remove trailing backslash to fix compile error. + - (dtucker) [key.c] ifdef out sha256 key types on platforms that don't have + the required functions in libcrypto. + +20120628 + - (dtucker) [openbsd-compat/getrrsetbyname-ldns.c] bz #2022: prevent null + pointer deref in the client when built with LDNS and using DNSSEC with a + CNAME. Patch from gregdlg+mr at hochet info. + +20120622 + - (dtucker) [contrib/cygwin/ssh-host-config] Ensure that user sshd runs as + can logon as a service. Patch from vinschen at redhat com. + +20120620 - (djm) OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/05/07 11:31:26 - [regress/Makefile regress/cert-userkey.sh] - regress tests for AuthorizedPrincipalsFile and "principals=" key option. - feedback and ok markus@ - - djm@cvs.openbsd.org 2010/05/11 02:58:04 - [auth-rsa.c] - don't accept certificates marked as "cert-authority" here; ok markus@ - - djm@cvs.openbsd.org 2010/05/14 00:47:22 - [ssh-add.c] - check that the certificate matches the corresponding private key before - grafting it on - - djm@cvs.openbsd.org 2010/05/14 23:29:23 - [channels.c channels.h mux.c ssh.c] - Pause the mux channel while waiting for reply from aynch callbacks. - Prevents misordering of replies if new requests arrive while waiting. - - Extend channel open confirm callback to allow signalling failure - conditions as well as success. Use this to 1) fix a memory leak, 2) - start using the above pause mechanism and 3) delay sending a success/ - failure message on mux slave session open until we receive a reply from - the server. - - motivated by and with feedback from markus@ - - markus@cvs.openbsd.org 2010/05/16 12:55:51 - [PROTOCOL.mux clientloop.h mux.c readconf.c readconf.h ssh.1 ssh.c] - mux support for remote forwarding with dynamic port allocation, - use with - LPORT=`ssh -S muxsocket -R0:localhost:25 -O forward somehost` - feedback and ok djm@ - - djm@cvs.openbsd.org 2010/05/20 11:25:26 - [auth2-pubkey.c] - fix logspam when key options (from="..." especially) deny non-matching - keys; reported by henning@ also bz#1765; ok markus@ dtucker@ - - djm@cvs.openbsd.org 2010/05/20 23:46:02 - [PROTOCOL.certkeys auth-options.c ssh-keygen.c] - Move the permit-* options to the non-critical "extensions" field for v01 - certificates. The logic is that if another implementation fails to - implement them then the connection just loses features rather than fails - outright. - - ok markus@ + - djm@cvs.openbsd.org 2011/12/02 00:41:56 + [mux.c] + fix bz#1948: ssh -f doesn't fork for multiplexed connection. + ok dtucker@ + - djm@cvs.openbsd.org 2011/12/04 23:16:12 + [mux.c] + revert: + > revision 1.32 + > date: 2011/12/02 00:41:56; author: djm; state: Exp; lines: +4 -1 + > fix bz#1948: ssh -f doesn't fork for multiplexed connection. + > ok dtucker@ + it interacts badly with ControlPersist + - djm@cvs.openbsd.org 2012/01/07 21:11:36 + [mux.c] + fix double-free in new session handler + NB. Id sync only + - djm@cvs.openbsd.org 2012/05/23 03:28:28 + [dns.c dns.h key.c key.h ssh-keygen.c] + add support for RFC6594 SSHFP DNS records for ECDSA key types. + patch from bugzilla-m67 AT nulld.me in bz#1978; ok + tweak markus@ + (Original authors OndÅ™ej Surý, OndÅ™ej Caletka and Daniel Black) + - djm@cvs.openbsd.org 2012/06/01 00:49:35 + [PROTOCOL.mux] + correct types of port numbers (integers, not strings); bz#2004 from + bert.wesarg AT googlemail.com + - djm@cvs.openbsd.org 2012/06/01 01:01:22 + [mux.c] + fix memory leak when mux socket creation fails; bz#2002 from bert.wesarg + AT googlemail.com + - dtucker@cvs.openbsd.org 2012/06/18 11:43:53 + [jpake.c] + correct sizeof usage. patch from saw at online.de, ok deraadt + - dtucker@cvs.openbsd.org 2012/06/18 11:49:58 + [ssh_config.5] + RSA instead of DSA twice. From Steve.McClellan at radisys com + - dtucker@cvs.openbsd.org 2012/06/18 12:07:07 + [ssh.1 sshd.8] + Remove mention of 'three' key files since there are now four. From + Steve.McClellan at radisys com. + - dtucker@cvs.openbsd.org 2012/06/18 12:17:18 + [ssh.1] + Clarify description of -W. Noted by Steve.McClellan at radisys com, + ok jmc + - markus@cvs.openbsd.org 2012/06/19 18:25:28 + [servconf.c servconf.h sshd_config.5] + sshd_config: extend Match to allow AcceptEnv and {Allow,Deny}{Users,Groups} + this allows 'Match LocalPort 1022' combined with 'AllowUser bauer' + ok djm@ (back in March) + - jmc@cvs.openbsd.org 2012/06/19 21:35:54 + [sshd_config.5] + tweak previous; ok markus + - djm@cvs.openbsd.org 2012/06/20 04:42:58 + [clientloop.c serverloop.c] + initialise accept() backoff timer to avoid EINVAL from select(2) in + rekeying + +20120519 + - (dtucker) [configure.ac] bz#2010: fix non-portable shell construct. Patch + from cjwatson at debian org. + - (dtucker) [configure.ac contrib/Makefile] bz#1996: use AC_PATH_TOOL to find + pkg-config so it does the right thing when cross-compiling. Patch from + cjwatson at debian org. +- (dtucker) OpenBSD CVS Sync + - dtucker@cvs.openbsd.org 2012/05/13 01:42:32 + [servconf.h servconf.c sshd.8 sshd.c auth.c sshd_config.5] + Add "Match LocalAddress" and "Match LocalPort" to sshd and adjust tests + to match. Feedback and ok djm@ markus@. + - dtucker@cvs.openbsd.org 2012/05/19 06:30:30 + [sshd_config.5] + Document PermitOpen none. bz#2001, patch from Loganaden Velvindron + +20120504 + - (dtucker) [configure.ac] Include <sys/param.h> rather than <sys/types.h> + to fix building on some plaforms. Fom bowman at math utah edu and + des at des no. + +20120427 + - (dtucker) [regress/addrmatch.sh] skip tests when running on a non-ipv6 + platform rather than exiting early, so that we still clean up and return + success or failure to test-exec.sh + +20120426 + - (djm) [auth-passwd.c] Handle crypt() returning NULL; from Paul Wouters + via Niels + - (djm) [auth-krb5.c] Save errno across calls that might modify it; + ok dtucker@ -20100511 - - (dtucker) [Makefile.in] Bug #1770: Link libopenbsd-compat twice to solve - circular dependency problem on old or odd platforms. From Tom Lane, ok - djm@. - - (djm) [openbsd-compat/openssl-compat.h] Fix build breakage on older - libcrypto by defining OPENSSL_[DR]SA_MAX_MODULUS_BITS if they aren't - already. ok dtucker@ +20120423 + - OpenBSD CVS Sync + - djm@cvs.openbsd.org 2012/04/23 08:18:17 + [channels.c] + fix function proto/source mismatch -20100510 +20120422 - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/04/23 01:47:41 + - djm@cvs.openbsd.org 2012/02/29 11:21:26 [ssh-keygen.c] - bz#1740: display a more helpful error message when $HOME is - inaccessible while trying to create .ssh directory. Based on patch - from jchadima AT redhat.com; ok dtucker@ - - djm@cvs.openbsd.org 2010/04/23 22:27:38 - [mux.c] - set "detach_close" flag when registering channel cleanup callbacks. - This causes the channel to close normally when its fds close and - hangs when terminating a mux slave using ~. bz#1758; ok markus@ - - djm@cvs.openbsd.org 2010/04/23 22:42:05 + allow conversion of RSA1 keys to public PEM and PKCS8; "nice" markus@ + - guenther@cvs.openbsd.org 2012/03/15 03:10:27 [session.c] - set stderr to /dev/null for subsystems rather than just closing it. - avoids hangs if a subsystem or shell initialisation writes to stderr. - bz#1750; ok markus@ - - djm@cvs.openbsd.org 2010/04/23 22:48:31 - [ssh-keygen.c] - refuse to generate keys longer than OPENSSL_[RD]SA_MAX_MODULUS_BITS, - since we would refuse to use them anyway. bz#1516; ok dtucker@ - - djm@cvs.openbsd.org 2010/04/26 22:28:24 - [sshconnect2.c] - bz#1502: authctxt.success is declared as an int, but passed by - reference to function that accepts sig_atomic_t*. Convert it to - the latter; ok markus@ dtucker@ - - djm@cvs.openbsd.org 2010/05/01 02:50:50 + root should always be excluded from the test for /etc/nologin instead + of having it always enforced even when marked as ignorenologin. This + regressed when the logic was incompletely flipped around in rev 1.251 + ok halex@ millert@ + - djm@cvs.openbsd.org 2012/03/28 07:23:22 [PROTOCOL.certkeys] - typo; jmeltzer@ - - dtucker@cvs.openbsd.org 2010/05/05 04:22:09 + explain certificate extensions/crit split rationale. Mention requirement + that each appear at most once per cert. + - dtucker@cvs.openbsd.org 2012/03/29 23:54:36 + [channels.c channels.h servconf.c] + Add PermitOpen none option based on patch from Loganaden Velvindron + (bz #1949). ok djm@ + - djm@cvs.openbsd.org 2012/04/11 13:16:19 + [channels.c channels.h clientloop.c serverloop.c] + don't spin in accept() when out of fds (ENFILE/ENFILE) - back off for a + while; ok deraadt@ markus@ + - djm@cvs.openbsd.org 2012/04/11 13:17:54 + [auth.c] + Support "none" as an argument for AuthorizedPrincipalsFile to indicate + no file should be read. + - djm@cvs.openbsd.org 2012/04/11 13:26:40 + [sshd.c] + don't spin in accept() when out of fds (ENFILE/ENFILE) - back off for a + while; ok deraadt@ markus@ + - djm@cvs.openbsd.org 2012/04/11 13:34:17 + [ssh-keyscan.1 ssh-keyscan.c] + now that sshd defaults to offering ECDSA keys, ssh-keyscan should also + look for them by default; bz#1971 + - djm@cvs.openbsd.org 2012/04/12 02:42:32 + [servconf.c servconf.h sshd.c sshd_config sshd_config.5] + VersionAddendum option to allow server operators to append some arbitrary + text to the SSH-... banner; ok deraadt@ "don't care" markus@ + - djm@cvs.openbsd.org 2012/04/12 02:43:55 + [sshd_config sshd_config.5] + mention AuthorizedPrincipalsFile=none default + - djm@cvs.openbsd.org 2012/04/20 03:24:23 [sftp.c] - restore mput and mget which got lost in the tab-completion changes. - found by Kenneth Whitaker, ok djm@ - - djm@cvs.openbsd.org 2010/05/07 11:30:30 - [auth-options.c auth-options.h auth.c auth.h auth2-pubkey.c] - [key.c servconf.c servconf.h sshd.8 sshd_config.5] - add some optional indirection to matching of principal names listed - in certificates. Currently, a certificate must include the a user's name - to be accepted for authentication. This change adds the ability to - specify a list of certificate principal names that are acceptable. - - When authenticating using a CA trusted through ~/.ssh/authorized_keys, - this adds a new principals="name1[,name2,...]" key option. - - For CAs listed through sshd_config's TrustedCAKeys option, a new config - option "AuthorizedPrincipalsFile" specifies a per-user file containing - the list of acceptable names. - - If either option is absent, the current behaviour of requiring the - username to appear in principals continues to apply. - - These options are useful for role accounts, disjoint account namespaces - and "user@realm"-style naming policies in certificates. - - feedback and ok markus@ - - jmc@cvs.openbsd.org 2010/05/07 12:49:17 - [sshd_config.5] - tweak previous; + setlinebuf(3) is more readable than setvbuf(.., _IOLBF, ...) + - jmc@cvs.openbsd.org 2012/04/20 16:26:22 + [ssh.1] + use "brackets" instead of "braces", for consistency; -20100423 - - (dtucker) [configure.ac] Bug #1756: Check for the existence of a lib64 dir - in the openssl install directory (some newer openssl versions do this on at - least some amd64 platforms). +20120420 + - (djm) [contrib/caldera/openssh.spec contrib/redhat/openssh.spec] + [contrib/suse/openssh.spec] Update for release 6.0 + - (djm) [README] Update URL to release notes. + - (djm) Release openssh-6.0 -20100418 - - OpenBSD CVS Sync - - jmc@cvs.openbsd.org 2010/04/16 06:45:01 - [ssh_config.5] - tweak previous; ok djm - - jmc@cvs.openbsd.org 2010/04/16 06:47:04 - [ssh-keygen.1 ssh-keygen.c] - tweak previous; ok djm - - djm@cvs.openbsd.org 2010/04/16 21:14:27 - [sshconnect.c] - oops, %r => remote username, not %u - - djm@cvs.openbsd.org 2010/04/16 01:58:45 - [regress/cert-hostkey.sh regress/cert-userkey.sh] - regression tests for v01 certificate format - includes interop tests for v00 certs - - (dtucker) [contrib/aix/buildbff.sh] Fix creation of ssh_prng_cmds.default - file. - -20100416 - - (djm) Release openssh-5.5p1 - - OpenBSD CVS Sync - - djm@cvs.openbsd.org 2010/03/26 03:13:17 - [bufaux.c] - allow buffer_get_int_ret/buffer_get_int64_ret to take a NULL pointer - argument to allow skipping past values in a buffer - - jmc@cvs.openbsd.org 2010/03/26 06:54:36 - [ssh.1] - tweak previous; - - jmc@cvs.openbsd.org 2010/03/27 14:26:55 - [ssh_config.5] - tweak previous; ok dtucker - - djm@cvs.openbsd.org 2010/04/10 00:00:16 - [ssh.c] - bz#1746 - suppress spurious tty warning when using -O and stdin - is not a tty; ok dtucker@ markus@ - - djm@cvs.openbsd.org 2010/04/10 00:04:30 - [sshconnect.c] - fix terminology: we didn't find a certificate in known_hosts, we found - a CA key - - djm@cvs.openbsd.org 2010/04/10 02:08:44 - [clientloop.c] - bz#1698: kill channel when pty allocation requests fail. Fixed - stuck client if the server refuses pty allocation. - ok dtucker@ "think so" markus@ - - djm@cvs.openbsd.org 2010/04/10 02:10:56 - [sshconnect2.c] - show the key type that we are offering in debug(), helps distinguish - between certs and plain keys as the path to the private key is usually - the same. - - djm@cvs.openbsd.org 2010/04/10 05:48:16 - [mux.c] - fix NULL dereference; from matthew.haub AT alumni.adelaide.edu.au - - djm@cvs.openbsd.org 2010/04/14 22:27:42 - [ssh_config.5 sshconnect.c] - expand %r => remote username in ssh_config:ProxyCommand; - ok deraadt markus - - markus@cvs.openbsd.org 2010/04/15 20:32:55 - [ssh-pkcs11.c] - retry lookup for private key if there's no matching key with CKA_SIGN - attribute enabled; this fixes fixes MuscleCard support (bugzilla #1736) - ok djm@ - - djm@cvs.openbsd.org 2010/04/16 01:47:26 - [PROTOCOL.certkeys auth-options.c auth-options.h auth-rsa.c] - [auth2-pubkey.c authfd.c key.c key.h myproposal.h ssh-add.c] - [ssh-agent.c ssh-dss.c ssh-keygen.1 ssh-keygen.c ssh-rsa.c] - [sshconnect.c sshconnect2.c sshd.c] - revised certificate format ssh-{dss,rsa}-cert-v01@openssh.com with the - following changes: - - move the nonce field to the beginning of the certificate where it can - better protect against chosen-prefix attacks on the signature hash - - Rename "constraints" field to "critical options" - - Add a new non-critical "extensions" field - - Add a serial number - - The older format is still support for authentication and cert generation - (use "ssh-keygen -t v00 -s ca_key ..." to generate a v00 certificate) - - ok markus@ @@ -89,7 +89,7 @@ http://nlnetlabs.nl/projects/ldns/ Autoconf: If you modify configure.ac or configure doesn't exist (eg if you checked -the code out of CVS yourself) then you will need autoconf-2.61 to rebuild +the code out of CVS yourself) then you will need autoconf-2.68 to rebuild the automatically generated files by running "autoreconf". Earlier versions may also work but this is not guaranteed. @@ -266,4 +266,4 @@ Please refer to the "reporting bugs" section of the webpage at http://www.openssh.com/ -$Id: INSTALL,v 1.87 2011/11/04 00:25:25 dtucker Exp $ +$Id: INSTALL,v 1.88 2013/03/07 01:33:35 dtucker Exp $ diff --git a/Makefile.in b/Makefile.in index 3be3aa61..a8aa1272 100644 --- a/Makefile.in +++ b/Makefile.in @@ -1,4 +1,4 @@ -# $Id: Makefile.in,v 1.325 2011/08/05 20:15:18 djm Exp $ +# $Id: Makefile.in,v 1.352 2014/01/27 06:35:04 dtucker Exp $ # uncomment if you run a non bourne compatable shell. Ie. csh #SHELL = @SH@ @@ -37,13 +37,15 @@ PATHS= -DSSHDIR=\"$(sysconfdir)\" \ -D_PATH_SSH_KEY_SIGN=\"$(SSH_KEYSIGN)\" \ -D_PATH_SSH_PKCS11_HELPER=\"$(SSH_PKCS11_HELPER)\" \ -D_PATH_SSH_PIDDIR=\"$(piddir)\" \ - -D_PATH_PRIVSEP_CHROOT_DIR=\"$(PRIVSEP_PATH)\" \ + -D_PATH_PRIVSEP_CHROOT_DIR=\"$(PRIVSEP_PATH)\" CC=@CC@ LD=@LD@ CFLAGS=@CFLAGS@ CPPFLAGS=-I. -I$(srcdir) @CPPFLAGS@ $(PATHS) @DEFS@ LIBS=@LIBS@ +K5LIBS=@K5LIBS@ +GSSLIBS=@GSSLIBS@ SSHLIBS=@SSHLIBS@ SSHDLIBS=@SSHDLIBS@ LIBEDIT=@LIBEDIT@ @@ -61,8 +63,8 @@ MANFMT=@MANFMT@ TARGETS=ssh$(EXEEXT) sshd$(EXEEXT) ssh-add$(EXEEXT) ssh-keygen$(EXEEXT) ssh-keyscan${EXEEXT} ssh-keysign${EXEEXT} ssh-pkcs11-helper$(EXEEXT) ssh-agent$(EXEEXT) scp$(EXEEXT) sftp-server$(EXEEXT) sftp$(EXEEXT) -LIBSSH_OBJS=acss.o authfd.o authfile.o bufaux.o bufbn.o buffer.o \ - canohost.o channels.o cipher.o cipher-acss.o cipher-aes.o \ +LIBSSH_OBJS=authfd.o authfile.o bufaux.o bufbn.o buffer.o \ + canohost.o channels.o cipher.o cipher-aes.o \ cipher-bf1.o cipher-ctr.o cipher-3des1.o cleanup.o \ compat.o compress.o crc32.o deattack.o fatal.o hostfile.o \ log.o match.o md-sha256.o moduli.o nchan.o packet.o \ @@ -70,8 +72,11 @@ LIBSSH_OBJS=acss.o authfd.o authfile.o bufaux.o bufbn.o buffer.o \ atomicio.o key.o dispatch.o kex.o mac.o uidswap.o uuencode.o misc.o \ monitor_fdpass.o rijndael.o ssh-dss.o ssh-ecdsa.o ssh-rsa.o dh.o \ kexdh.o kexgex.o kexdhc.o kexgexc.o bufec.o kexecdh.o kexecdhc.o \ - msg.o progressmeter.o dns.o entropy.o gss-genr.o umac.o jpake.o \ - schnorr.o ssh-pkcs11.o + msg.o progressmeter.o dns.o entropy.o gss-genr.o umac.o umac128.o \ + jpake.o schnorr.o ssh-pkcs11.o krl.o smult_curve25519_ref.o \ + kexc25519.o kexc25519c.o poly1305.o chacha.o cipher-chachapoly.o \ + ssh-ed25519.o digest.o \ + sc25519.o ge25519.o fe25519.o ed25519.o verify.o hash.o blocks.o SSHOBJS= ssh.o readconf.o clientloop.o sshtty.o \ sshconnect.o sshconnect1.o sshconnect2.o mux.o \ @@ -85,12 +90,13 @@ SSHDOBJS=sshd.o auth-rhosts.o auth-passwd.o auth-rsa.o auth-rh-rsa.o \ auth-skey.o auth-bsdauth.o auth2-hostbased.o auth2-kbdint.o \ auth2-none.o auth2-passwd.o auth2-pubkey.o auth2-jpake.o \ monitor_mm.o monitor.o monitor_wrap.o kexdhs.o kexgexs.o kexecdhs.o \ - auth-krb5.o \ + kexc25519s.o auth-krb5.o \ auth2-gss.o gss-serv.o gss-serv-krb5.o \ loginrec.o auth-pam.o auth-shadow.o auth-sia.o md5crypt.o \ sftp-server.o sftp-common.o \ roaming_common.o roaming_serv.o \ - sandbox-null.o sandbox-rlimit.o sandbox-systrace.o sandbox-darwin.o + sandbox-null.o sandbox-rlimit.o sandbox-systrace.o sandbox-darwin.o \ + sandbox-seccomp-filter.o sandbox-capsicum.o MANPAGES = moduli.5.out scp.1.out ssh-add.1.out ssh-agent.1.out ssh-keygen.1.out ssh-keyscan.1.out ssh.1.out sshd.8.out sftp-server.8.out sftp.1.out ssh-keysign.8.out ssh-pkcs11-helper.8.out sshd_config.5.out ssh_config.5.out MANPAGES_IN = moduli.5 scp.1 ssh-add.1 ssh-agent.1 ssh-keygen.1 ssh-keyscan.1 ssh.1 sshd.8 sftp-server.8 sftp.1 ssh-keysign.8 ssh-pkcs11-helper.8 sshd_config.5 ssh_config.5 @@ -109,6 +115,7 @@ PATHSUBS = \ -e 's|/etc/ssh/ssh_host_ecdsa_key|$(sysconfdir)/ssh_host_ecdsa_key|g' \ -e 's|/etc/ssh/ssh_host_dsa_key|$(sysconfdir)/ssh_host_dsa_key|g' \ -e 's|/etc/ssh/ssh_host_rsa_key|$(sysconfdir)/ssh_host_rsa_key|g' \ + -e 's|/etc/ssh/ssh_host_ed25519_key|$(sysconfdir)/ssh_host_ed25519_key|g' \ -e 's|/var/run/sshd.pid|$(piddir)/sshd.pid|g' \ -e 's|/etc/moduli|$(sysconfdir)/moduli|g' \ -e 's|/etc/ssh/moduli|$(sysconfdir)/moduli|g' \ @@ -118,6 +125,8 @@ PATHSUBS = \ -e 's|/usr/bin:/bin:/usr/sbin:/sbin|@user_path@|g' FIXPATHSCMD = $(SED) $(PATHSUBS) +FIXALGORITHMSCMD= $(SHELL) $(srcdir)/fixalgorithms $(SED) \ + @UNSUPPORTED_ALGORITHMS@ all: $(CONFIGFILES) $(MANPAGES) $(TARGETS) @@ -138,10 +147,10 @@ libssh.a: $(LIBSSH_OBJS) $(RANLIB) $@ ssh$(EXEEXT): $(LIBCOMPAT) libssh.a $(SSHOBJS) - $(LD) -o $@ $(SSHOBJS) $(LDFLAGS) -lssh -lopenbsd-compat $(SSHLIBS) $(LIBS) + $(LD) -o $@ $(SSHOBJS) $(LDFLAGS) -lssh -lopenbsd-compat $(SSHLIBS) $(LIBS) $(GSSLIBS) sshd$(EXEEXT): libssh.a $(LIBCOMPAT) $(SSHDOBJS) - $(LD) -o $@ $(SSHDOBJS) $(LDFLAGS) -lssh -lopenbsd-compat $(SSHDLIBS) $(LIBS) + $(LD) -o $@ $(SSHDOBJS) $(LDFLAGS) -lssh -lopenbsd-compat $(SSHDLIBS) $(LIBS) $(GSSLIBS) $(K5LIBS) scp$(EXEEXT): $(LIBCOMPAT) libssh.a scp.o progressmeter.o $(LD) -o $@ scp.o progressmeter.o bufaux.o $(LDFLAGS) -lssh -lopenbsd-compat $(LIBS) @@ -181,9 +190,10 @@ $(MANPAGES): $(MANPAGES_IN) manpage=$(srcdir)/`echo $@ | sed 's/\.out$$//'`; \ fi; \ if test "$(MANTYPE)" = "man"; then \ - $(FIXPATHSCMD) $${manpage} | $(AWK) -f $(srcdir)/mdoc2man.awk > $@; \ + $(FIXPATHSCMD) $${manpage} | $(FIXALGORITHMSCMD) | \ + $(AWK) -f $(srcdir)/mdoc2man.awk > $@; \ else \ - $(FIXPATHSCMD) $${manpage} > $@; \ + $(FIXPATHSCMD) $${manpage} | $(FIXALGORITHMSCMD) > $@; \ fi $(CONFIGFILES): $(CONFIGFILES_IN) @@ -194,6 +204,13 @@ $(CONFIGFILES): $(CONFIGFILES_IN) moduli: echo +# special case target for umac128 +umac128.o: umac.c + $(CC) $(CFLAGS) $(CPPFLAGS) -o umac128.o -c $(srcdir)/umac.c \ + -DUMAC_OUTPUT_LEN=16 -Dumac_new=umac128_new \ + -Dumac_update=umac128_update -Dumac_final=umac128_final \ + -Dumac_delete=umac128_delete + clean: regressclean rm -f *.o *.a $(TARGETS) logintest config.cache config.log rm -f *.out core survey @@ -319,6 +336,11 @@ host-key: ssh-keygen$(EXEEXT) else \ ./ssh-keygen -t rsa -f $(sysconfdir)/ssh_host_rsa_key -N "" ; \ fi ; \ + if [ -f $(sysconfdir)/ssh_host_ed25519_key ] ; then \ + echo "$(sysconfdir)/ssh_host_ed25519_key already exists, skipping." ; \ + else \ + ./ssh-keygen -t ed25519 -f $(sysconfdir)/ssh_host_ed25519_key -N "" ; \ + fi ; \ if [ -z "@COMMENT_OUT_ECC@" ] ; then \ if [ -f $(sysconfdir)/ssh_host_ecdsa_key ] ; then \ echo "$(sysconfdir)/ssh_host_ecdsa_key already exists, skipping." ; \ @@ -332,6 +354,7 @@ host-key-force: ssh-keygen$(EXEEXT) ./ssh-keygen -t rsa1 -f $(DESTDIR)$(sysconfdir)/ssh_host_key -N "" ./ssh-keygen -t dsa -f $(DESTDIR)$(sysconfdir)/ssh_host_dsa_key -N "" ./ssh-keygen -t rsa -f $(DESTDIR)$(sysconfdir)/ssh_host_rsa_key -N "" + ./ssh-keygen -t ed25519 -f $(DESTDIR)$(sysconfdir)/ssh_host_ed25519_key -N "" test -z "@COMMENT_OUT_ECC@" && ./ssh-keygen -t ecdsa -f $(DESTDIR)$(sysconfdir)/ssh_host_ecdsa_key -N "" uninstallall: uninstall @@ -371,12 +394,24 @@ uninstall: -rm -f $(DESTDIR)$(mandir)/$(mansubdir)8/ssh-pkcs11-helper.8 -rm -f $(DESTDIR)$(mandir)/$(mansubdir)1/slogin.1 -tests interop-tests: $(TARGETS) - BUILDDIR=`pwd`; \ - [ -d `pwd`/regress ] || mkdir -p `pwd`/regress; \ +regress/modpipe$(EXEEXT): $(srcdir)/regress/modpipe.c + [ -d `pwd`/regress ] || mkdir -p `pwd`/regress [ -f `pwd`/regress/Makefile ] || \ - ln -s `cd $(srcdir) && pwd`/regress/Makefile `pwd`/regress/Makefile ; \ + ln -s `cd $(srcdir) && pwd`/regress/Makefile `pwd`/regress/Makefile + $(CC) $(CFLAGS) $(CPPFLAGS) -o $@ $? \ + $(LDFLAGS) -lssh -lopenbsd-compat -lssh -lopenbsd-compat $(LIBS) + +regress/setuid-allowed$(EXEEXT): $(srcdir)/regress/setuid-allowed.c + [ -d `pwd`/regress ] || mkdir -p `pwd`/regress + [ -f `pwd`/regress/Makefile ] || \ + ln -s `cd $(srcdir) && pwd`/regress/Makefile `pwd`/regress/Makefile + $(CC) $(CFLAGS) $(CPPFLAGS) -o $@ $? \ + $(LDFLAGS) -lssh -lopenbsd-compat -lssh -lopenbsd-compat $(LIBS) + +tests interop-tests: $(TARGETS) regress/modpipe$(EXEEXT) + BUILDDIR=`pwd`; \ TEST_SHELL="@TEST_SHELL@"; \ + TEST_SSH_SCP="$${BUILDDIR}/scp"; \ TEST_SSH_SSH="$${BUILDDIR}/ssh"; \ TEST_SSH_SSHD="$${BUILDDIR}/sshd"; \ TEST_SSH_SSHAGENT="$${BUILDDIR}/ssh-agent"; \ @@ -391,7 +426,6 @@ tests interop-tests: $(TARGETS) TEST_SSH_CONCH="conch"; \ TEST_SSH_IPV6="@TEST_SSH_IPV6@" ; \ TEST_SSH_ECC="@TEST_SSH_ECC@" ; \ - TEST_SSH_SHA256="@TEST_SSH_SHA256@" ; \ cd $(srcdir)/regress || exit $$?; \ $(MAKE) \ .OBJDIR="$${BUILDDIR}/regress" \ @@ -399,7 +433,9 @@ tests interop-tests: $(TARGETS) BUILDDIR="$${BUILDDIR}" \ OBJ="$${BUILDDIR}/regress/" \ PATH="$${BUILDDIR}:$${PATH}" \ + TEST_ENV=MALLOC_OPTIONS="@TEST_MALLOC_OPTIONS@" \ TEST_SHELL="$${TEST_SHELL}" \ + TEST_SSH_SCP="$${TEST_SSH_SCP}" \ TEST_SSH_SSH="$${TEST_SSH_SSH}" \ TEST_SSH_SSHD="$${TEST_SSH_SSHD}" \ TEST_SSH_SSHAGENT="$${TEST_SSH_SSHAGENT}" \ @@ -414,7 +450,6 @@ tests interop-tests: $(TARGETS) TEST_SSH_CONCH="$${TEST_SSH_CONCH}" \ TEST_SSH_IPV6="$${TEST_SSH_IPV6}" \ TEST_SSH_ECC="$${TEST_SSH_ECC}" \ - TEST_SSH_SHA256="$${TEST_SSH_SHA256}" \ EXEEXT="$(EXEEXT)" \ $@ && echo all tests passed @@ -439,4 +474,3 @@ package: $(CONFIGFILES) $(MANPAGES) $(TARGETS) if [ "@MAKE_PACKAGE_SUPPORTED@" = yes ]; then \ sh buildpkg.sh; \ fi - @@ -51,6 +51,57 @@ and ecdsa-sha2-nistp521 curves over GF(p) are supported. Elliptic curve points encoded using point compression are NOT accepted or generated. +1.5 transport: Protocol 2 Encrypt-then-MAC MAC algorithms + +OpenSSH supports MAC algorithms, whose names contain "-etm", that +perform the calculations in a different order to that defined in RFC +4253. These variants use the so-called "encrypt then MAC" ordering, +calculating the MAC over the packet ciphertext rather than the +plaintext. This ordering closes a security flaw in the SSH transport +protocol, where decryption of unauthenticated ciphertext provided a +"decryption oracle" that could, in conjunction with cipher flaws, reveal +session plaintext. + +Specifically, the "-etm" MAC algorithms modify the transport protocol +to calculate the MAC over the packet ciphertext and to send the packet +length unencrypted. This is necessary for the transport to obtain the +length of the packet and location of the MAC tag so that it may be +verified without decrypting unauthenticated data. + +As such, the MAC covers: + + mac = MAC(key, sequence_number || packet_length || encrypted_packet) + +where "packet_length" is encoded as a uint32 and "encrypted_packet" +contains: + + byte padding_length + byte[n1] payload; n1 = packet_length - padding_length - 1 + byte[n2] random padding; n2 = padding_length + +1.6 transport: AES-GCM + +OpenSSH supports the AES-GCM algorithm as specified in RFC 5647. +Because of problems with the specification of the key exchange +the behaviour of OpenSSH differs from the RFC as follows: + +AES-GCM is only negotiated as the cipher algorithms +"aes128-gcm@openssh.com" or "aes256-gcm@openssh.com" and never as +an MAC algorithm. Additionally, if AES-GCM is selected as the cipher +the exchanged MAC algorithms are ignored and there doesn't have to be +a matching MAC. + +1.7 transport: chacha20-poly1305@openssh.com authenticated encryption + +OpenSSH supports authenticated encryption using ChaCha20 and Poly1305 +as described in PROTOCOL.chacha20poly1305. + +1.8 transport: curve25519-sha256@libssh.org key exchange algorithm + +OpenSSH supports the use of ECDH in Curve25519 for key exchange as +described at: +http://git.libssh.org/users/aris/libssh.git/plain/doc/curve25519-sha256@libssh.org.txt?h=curve25519 + 2. Connection protocol changes 2.1. connection: Channel write close extension "eow@openssh.com" @@ -291,4 +342,18 @@ link(oldpath, newpath) and will respond with a SSH_FXP_STATUS message. This extension is advertised in the SSH_FXP_VERSION hello with version "1". -$OpenBSD: PROTOCOL,v 1.17 2010/12/04 00:18:01 djm Exp $ +10. sftp: Extension request "fsync@openssh.com" + +This request asks the server to call fsync(2) on an open file handle. + + uint32 id + string "fsync@openssh.com" + string handle + +One receiving this request, a server will call fsync(handle_fd) and will +respond with a SSH_FXP_STATUS message. + +This extension is advertised in the SSH_FXP_VERSION hello with version +"1". + +$OpenBSD: PROTOCOL,v 1.23 2013/12/01 23:19:05 djm Exp $ diff --git a/PROTOCOL.agent b/PROTOCOL.agent index de94d037..3fcaa14d 100644 --- a/PROTOCOL.agent +++ b/PROTOCOL.agent @@ -152,7 +152,7 @@ fully specified using just rsa_q, rsa_p and rsa_e at the cost of extra computation. "key_constraints" may only be present if the request type is -SSH_AGENTC_ADD_RSA_IDENTITY. +SSH_AGENTC_ADD_RSA_ID_CONSTRAINED. The agent will reply with a SSH_AGENT_SUCCESS if the key has been successfully added or a SSH_AGENT_FAILURE if an error occurred. @@ -557,4 +557,4 @@ Locking and unlocking affects both protocol 1 and protocol 2 keys. SSH_AGENT_CONSTRAIN_LIFETIME 1 SSH_AGENT_CONSTRAIN_CONFIRM 2 -$OpenBSD: PROTOCOL.agent,v 1.6 2010/08/31 11:54:45 djm Exp $ +$OpenBSD: PROTOCOL.agent,v 1.7 2013/01/02 00:33:49 djm Exp $ diff --git a/PROTOCOL.certkeys b/PROTOCOL.certkeys index 2f976498..c9859109 100644 --- a/PROTOCOL.certkeys +++ b/PROTOCOL.certkeys @@ -162,6 +162,13 @@ extensions is a set of zero or more optional extensions. These extensions are not critical, and an implementation that encounters one that it does not recognise may safely ignore it. +Generally, critical options are used to control features that restrict +access where extensions are used to enable features that grant access. +This ensures that certificates containing unknown restrictions do not +inadvertently grant access while allowing new protocol features to be +enabled via extensions without breaking certificates' backwards +compatibility. + The reserved field is currently unused and is ignored in this version of the protocol. @@ -189,7 +196,7 @@ is a sequence of zero or more tuples: string data Options must be lexically ordered by "name" if they appear in the -sequence. +sequence. Each named option may only appear once in a certificate. The name field identifies the option and the data field encodes option-specific information (see below). All options are @@ -220,7 +227,9 @@ Extensions The extensions section of the certificate specifies zero or more non-critical certificate extensions. The encoding and ordering of -extensions in this field is identical to that of the critical options. +extensions in this field is identical to that of the critical options, +as is the requirement that each name appear only once. + If an implementation does not recognise an extension, then it should ignore it. @@ -253,4 +262,4 @@ permit-user-rc empty Flag indicating that execution of of this script will not be permitted if this option is not present. -$OpenBSD: PROTOCOL.certkeys,v 1.8 2010/08/31 11:54:45 djm Exp $ +$OpenBSD: PROTOCOL.certkeys,v 1.9 2012/03/28 07:23:22 djm Exp $ diff --git a/PROTOCOL.chacha20poly1305 b/PROTOCOL.chacha20poly1305 new file mode 100644 index 00000000..9cf73a92 --- /dev/null +++ b/PROTOCOL.chacha20poly1305 @@ -0,0 +1,105 @@ +This document describes the chacha20-poly1305@openssh.com authenticated +encryption cipher supported by OpenSSH. + +Background +---------- + +ChaCha20 is a stream cipher designed by Daniel Bernstein and described +in [1]. It operates by permuting 128 fixed bits, 128 or 256 bits of key, +a 64 bit nonce and a 64 bit counter into 64 bytes of output. This output +is used as a keystream, with any unused bytes simply discarded. + +Poly1305[2], also by Daniel Bernstein, is a one-time Carter-Wegman MAC +that computes a 128 bit integrity tag given a message and a single-use +256 bit secret key. + +The chacha20-poly1305@openssh.com combines these two primitives into an +authenticated encryption mode. The construction used is based on that +proposed for TLS by Adam Langley in [3], but differs in the layout of +data passed to the MAC and in the addition of encyption of the packet +lengths. + +Negotiation +----------- + +The chacha20-poly1305@openssh.com offers both encryption and +authentication. As such, no separate MAC is required. If the +chacha20-poly1305@openssh.com cipher is selected in key exchange, +the offered MAC algorithms are ignored and no MAC is required to be +negotiated. + +Detailed Construction +--------------------- + +The chacha20-poly1305@openssh.com cipher requires 512 bits of key +material as output from the SSH key exchange. This forms two 256 bit +keys (K_1 and K_2), used by two separate instances of chacha20. + +The instance keyed by K_1 is a stream cipher that is used only +to encrypt the 4 byte packet length field. The second instance, +keyed by K_2, is used in conjunction with poly1305 to build an AEAD +(Authenticated Encryption with Associated Data) that is used to encrypt +and authenticate the entire packet. + +Two separate cipher instances are used here so as to keep the packet +lengths confidential but not create an oracle for the packet payload +cipher by decrypting and using the packet length prior to checking +the MAC. By using an independently-keyed cipher instance to encrypt the +length, an active attacker seeking to exploit the packet input handling +as a decryption oracle can learn nothing about the payload contents or +its MAC (assuming key derivation, ChaCha20 and Poly1305 are secure). + +The AEAD is constructed as follows: for each packet, generate a Poly1305 +key by taking the first 256 bits of ChaCha20 stream output generated +using K_2, an IV consisting of the packet sequence number encoded as an +uint64 under the SSH wire encoding rules and a ChaCha20 block counter of +zero. The K_2 ChaCha20 block counter is then set to the little-endian +encoding of 1 (i.e. {1, 0, 0, 0, 0, 0, 0, 0}) and this instance is used +for encryption of the packet payload. + +Packet Handling +--------------- + +When receiving a packet, the length must be decrypted first. When 4 +bytes of ciphertext length have been received, they may be decrypted +using the K_1 key, a nonce consisting of the packet sequence number +encoded as a uint64 under the usual SSH wire encoding and a zero block +counter to obtain the plaintext length. + +Once the entire packet has been received, the MAC MUST be checked +before decryption. A per-packet Poly1305 key is generated as described +above and the MAC tag calculated using Poly1305 with this key over the +ciphertext of the packet length and the payload together. The calculated +MAC is then compared in constant time with the one appended to the +packet and the packet decrypted using ChaCha20 as described above (with +K_2, the packet sequence number as nonce and a starting block counter of +1). + +To send a packet, first encode the 4 byte length and encrypt it using +K_1. Encrypt the packet payload (using K_2) and append it to the +encrypted length. Finally, calculate a MAC tag and append it. + +Rekeying +-------- + +ChaCha20 must never reuse a {key, nonce} for encryption nor may it be +used to encrypt more than 2^70 bytes under the same {key, nonce}. The +SSH Transport protocol (RFC4253) recommends a far more conservative +rekeying every 1GB of data sent or received. If this recommendation +is followed, then chacha20-poly1305@openssh.com requires no special +handling in this area. + +References +---------- + +[1] "ChaCha, a variant of Salsa20", Daniel Bernstein + http://cr.yp.to/chacha/chacha-20080128.pdf + +[2] "The Poly1305-AES message-authentication code", Daniel Bernstein + http://cr.yp.to/mac/poly1305-20050329.pdf + +[3] "ChaCha20 and Poly1305 based Cipher Suites for TLS", Adam Langley + http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-03 + +$OpenBSD: PROTOCOL.chacha20poly1305,v 1.2 2013/12/02 02:50:27 djm Exp $ + diff --git a/PROTOCOL.key b/PROTOCOL.key new file mode 100644 index 00000000..959bd7ae --- /dev/null +++ b/PROTOCOL.key @@ -0,0 +1,68 @@ +This document describes the private key format for OpenSSH. + +1. Overall format + +The key consists of a header, a list of public keys, and +an encrypted list of matching private keys. + +#define AUTH_MAGIC "openssh-key-v1" + + byte[] AUTH_MAGIC + string ciphername + string kdfname + string kdfoptions + int number of keys N + string publickey1 + string publickey2 + ... + string publickeyN + string encrypted, padded list of private keys + +2. KDF options for kdfname "bcrypt" + +The options: + + string salt + uint32 rounds + +are concatenated and represented as a string. + +3. Unencrypted list of N private keys + +The list of privatekey/comment pairs is padded with the +bytes 1, 2, 3, ... until the total length is a multiple +of the cipher block size. + + uint32 checkint + uint32 checkint + string privatekey1 + string comment1 + string privatekey2 + string comment2 + ... + string privatekeyN + string commentN + char 1 + char 2 + char 3 + ... + char padlen % 255 + +Before the key is encrypted, a random integer is assigned +to both checkint fields so successful decryption can be +quickly checked by verifying that both checkint fields +hold the same value. + +4. Encryption + +The KDF is used to derive a key, IV (and other values required by +the cipher) from the passphrase. These values are then used to +encrypt the unencrypted list of private keys. + +5. No encryption + +For unencrypted keys the cipher "none" and the KDF "none" +are used with empty passphrases. The options if the KDF "none" +are the empty string. + +$OpenBSD: PROTOCOL.key,v 1.1 2013/12/06 13:34:54 markus Exp $ diff --git a/PROTOCOL.krl b/PROTOCOL.krl new file mode 100644 index 00000000..e8caa452 --- /dev/null +++ b/PROTOCOL.krl @@ -0,0 +1,164 @@ +This describes the key/certificate revocation list format for OpenSSH. + +1. Overall format + +The KRL consists of a header and zero or more sections. The header is: + +#define KRL_MAGIC 0x5353484b524c0a00ULL /* "SSHKRL\n\0" */ +#define KRL_FORMAT_VERSION 1 + + uint64 KRL_MAGIC + uint32 KRL_FORMAT_VERSION + uint64 krl_version + uint64 generated_date + uint64 flags + string reserved + string comment + +Where "krl_version" is a version number that increases each time the KRL +is modified, "generated_date" is the time in seconds since 1970-01-01 +00:00:00 UTC that the KRL was generated, "comment" is an optional comment +and "reserved" an extension field whose contents are currently ignored. +No "flags" are currently defined. + +Following the header are zero or more sections, each consisting of: + + byte section_type + string section_data + +Where "section_type" indicates the type of the "section_data". An exception +to this is the KRL_SECTION_SIGNATURE section, that has a slightly different +format (see below). + +The available section types are: + +#define KRL_SECTION_CERTIFICATES 1 +#define KRL_SECTION_EXPLICIT_KEY 2 +#define KRL_SECTION_FINGERPRINT_SHA1 3 +#define KRL_SECTION_SIGNATURE 4 + +3. Certificate serial section + +These sections use type KRL_SECTION_CERTIFICATES to revoke certificates by +serial number or key ID. The consist of the CA key that issued the +certificates to be revoked and a reserved field whose contents is currently +ignored. + + string ca_key + string reserved + +Followed by one or more sections: + + byte cert_section_type + string cert_section_data + +The certificate section types are: + +#define KRL_SECTION_CERT_SERIAL_LIST 0x20 +#define KRL_SECTION_CERT_SERIAL_RANGE 0x21 +#define KRL_SECTION_CERT_SERIAL_BITMAP 0x22 +#define KRL_SECTION_CERT_KEY_ID 0x23 + +2.1 Certificate serial list section + +This section is identified as KRL_SECTION_CERT_SERIAL_LIST. It revokes +certificates by listing their serial numbers. The cert_section_data in this +case contains: + + uint64 revoked_cert_serial + uint64 ... + +This section may appear multiple times. + +2.2. Certificate serial range section + +These sections use type KRL_SECTION_CERT_SERIAL_RANGE and hold +a range of serial numbers of certificates: + + uint64 serial_min + uint64 serial_max + +All certificates in the range serial_min <= serial <= serial_max are +revoked. + +This section may appear multiple times. + +2.3. Certificate serial bitmap section + +Bitmap sections use type KRL_SECTION_CERT_SERIAL_BITMAP and revoke keys +by listing their serial number in a bitmap. + + uint64 serial_offset + mpint revoked_keys_bitmap + +A bit set at index N in the bitmap corresponds to revocation of a keys with +serial number (serial_offset + N). + +This section may appear multiple times. + +2.4. Revoked key ID sections + +KRL_SECTION_CERT_KEY_ID sections revoke particular certificate "key +ID" strings. This may be useful in revoking all certificates +associated with a particular identity, e.g. a host or a user. + + string key_id[0] + ... + +This section must contain at least one "key_id". This section may appear +multiple times. + +3. Explicit key sections + +These sections, identified as KRL_SECTION_EXPLICIT_KEY, revoke keys +(not certificates). They are less space efficient than serial numbers, +but are able to revoke plain keys. + + string public_key_blob[0] + .... + +This section must contain at least one "public_key_blob". The blob +must be a raw key (i.e. not a certificate). + +This section may appear multiple times. + +4. SHA1 fingerprint sections + +These sections, identified as KRL_SECTION_FINGERPRINT_SHA1, revoke +plain keys (i.e. not certificates) by listing their SHA1 hashes: + + string public_key_hash[0] + .... + +This section must contain at least one "public_key_hash". The hash blob +is obtained by taking the SHA1 hash of the public key blob. Hashes in +this section must appear in numeric order, treating each hash as a big- +endian integer. + +This section may appear multiple times. + +5. KRL signature sections + +The KRL_SECTION_SIGNATURE section serves a different purpose to the +preceeding ones: to provide cryptographic authentication of a KRL that +is retrieved over a channel that does not provide integrity protection. +Its format is slightly different to the previously-described sections: +in order to simplify the signature generation, it includes as a "body" +two string components instead of one. + + byte KRL_SECTION_SIGNATURE + string signature_key + string signature + +The signature is calculated over the entire KRL from the KRL_MAGIC +to this subsection's "signature_key", including both and using the +signature generation rules appropriate for the type of "signature_key". + +This section must appear last in the KRL. If multiple signature sections +appear, they must appear consecutively at the end of the KRL file. + +Implementations that retrieve KRLs over untrusted channels must verify +signatures. Signature sections are optional for KRLs distributed by +trusted means. + +$OpenBSD: PROTOCOL.krl,v 1.2 2013/01/18 00:24:58 djm Exp $ diff --git a/PROTOCOL.mux b/PROTOCOL.mux index 49cbe5b4..b5832561 100644 --- a/PROTOCOL.mux +++ b/PROTOCOL.mux @@ -110,9 +110,9 @@ A client may request the master to establish a port forward: uint32 request id uint32 forwarding type string listen host - string listen port + uint32 listen port string connect host - string connect port + uint32 connect port forwarding type may be MUX_FWD_LOCAL, MUX_FWD_REMOTE, MUX_FWD_DYNAMIC. @@ -135,9 +135,9 @@ A client may request the master to close a port forward: uint32 request id uint32 forwarding type string listen host - string listen port + uint32 listen port string connect host - string connect port + uint32 connect port A server may reply with a MUX_S_OK, a MUX_S_PERMISSION_DENIED or a MUX_S_FAILURE. @@ -219,4 +219,4 @@ XXX inject packet (what about replies) XXX server->client error/warning notifications XXX send signals via mux -$OpenBSD: PROTOCOL.mux,v 1.8 2011/09/09 00:44:07 djm Exp $ +$OpenBSD: PROTOCOL.mux,v 1.9 2012/06/01 00:49:35 djm Exp $ @@ -1,4 +1,4 @@ -See http://www.openssh.com/txt/release-5.9 for the release notes. +See http://www.openssh.com/txt/release-6.5 for the release notes. - A Japanese translation of this document and of the OpenSSH FAQ is - available at http://www.unixuser.org/~haruyama/security/openssh/index.html @@ -62,4 +62,4 @@ References - [6] http://www.openbsd.org/cgi-bin/man.cgi?query=style&sektion=9 [7] http://www.openssh.com/faq.html -$Id: README,v 1.79 2011/09/06 23:11:54 djm Exp $ +$Id: README,v 1.85 2014/01/16 07:51:45 djm Exp $ @@ -1,4 +1,4 @@ -dnl $Id: aclocal.m4,v 1.8 2011/05/20 01:45:25 djm Exp $ +dnl $Id: aclocal.m4,v 1.13 2014/01/22 10:30:12 djm Exp $ dnl dnl OpenSSH-specific autoconf macros dnl @@ -8,19 +8,104 @@ dnl Check that $CC accepts a flag 'check_flag'. If it is supported append dnl 'define_flag' to $CFLAGS. If 'define_flag' is not specified, then append dnl 'check_flag'. AC_DEFUN([OSSH_CHECK_CFLAG_COMPILE], [{ - AC_MSG_CHECKING([if $CC supports $1]) + AC_MSG_CHECKING([if $CC supports compile flag $1]) saved_CFLAGS="$CFLAGS" - CFLAGS="$CFLAGS $1" + CFLAGS="$CFLAGS $WERROR $1" _define_flag="$2" test "x$_define_flag" = "x" && _define_flag="$1" - AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int main(void) { return 0; }]])], - [ AC_MSG_RESULT([yes]) - CFLAGS="$saved_CFLAGS $_define_flag"], + AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ +#include <stdlib.h> +#include <stdio.h> +int main(int argc, char **argv) { + /* Some math to catch -ftrapv problems in the toolchain */ + int i = 123 * argc, j = 456 + argc, k = 789 - argc; + float l = i * 2.1; + double m = l / 0.5; + long long int n = argc * 12345LL, o = 12345LL * (long long int)argc; + printf("%d %d %d %f %f %lld %lld\n", i, j, k, l, m, n, o); + exit(0); +} + ]])], + [ +if `grep -i "unrecognized option" conftest.err >/dev/null` +then + AC_MSG_RESULT([no]) + CFLAGS="$saved_CFLAGS" +else + AC_MSG_RESULT([yes]) + CFLAGS="$saved_CFLAGS $_define_flag" +fi], [ AC_MSG_RESULT([no]) CFLAGS="$saved_CFLAGS" ] ) }]) +dnl OSSH_CHECK_CFLAG_LINK(check_flag[, define_flag]) +dnl Check that $CC accepts a flag 'check_flag'. If it is supported append +dnl 'define_flag' to $CFLAGS. If 'define_flag' is not specified, then append +dnl 'check_flag'. +AC_DEFUN([OSSH_CHECK_CFLAG_LINK], [{ + AC_MSG_CHECKING([if $CC supports compile flag $1 and linking succeeds]) + saved_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $WERROR $1" + _define_flag="$2" + test "x$_define_flag" = "x" && _define_flag="$1" + AC_LINK_IFELSE([AC_LANG_SOURCE([[ +#include <stdlib.h> +#include <stdio.h> +int main(int argc, char **argv) { + /* Some math to catch -ftrapv problems in the toolchain */ + int i = 123 * argc, j = 456 + argc, k = 789 - argc; + float l = i * 2.1; + double m = l / 0.5; + long long int n = argc * 12345LL, o = 12345LL * (long long int)argc; + printf("%d %d %d %f %f %lld %lld\n", i, j, k, l, m, n, o); + exit(0); +} + ]])], + [ +if `grep -i "unrecognized option" conftest.err >/dev/null` +then + AC_MSG_RESULT([no]) + CFLAGS="$saved_CFLAGS" +else + AC_MSG_RESULT([yes]) + CFLAGS="$saved_CFLAGS $_define_flag" +fi], + [ AC_MSG_RESULT([no]) + CFLAGS="$saved_CFLAGS" ] + ) +}]) + +dnl OSSH_CHECK_LDFLAG_LINK(check_flag[, define_flag]) +dnl Check that $LD accepts a flag 'check_flag'. If it is supported append +dnl 'define_flag' to $LDFLAGS. If 'define_flag' is not specified, then append +dnl 'check_flag'. +AC_DEFUN([OSSH_CHECK_LDFLAG_LINK], [{ + AC_MSG_CHECKING([if $LD supports link flag $1]) + saved_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS $WERROR $1" + _define_flag="$2" + test "x$_define_flag" = "x" && _define_flag="$1" + AC_LINK_IFELSE([AC_LANG_SOURCE([[ +#include <stdlib.h> +#include <stdio.h> +int main(int argc, char **argv) { + /* Some math to catch -ftrapv problems in the toolchain */ + int i = 123 * argc, j = 456 + argc, k = 789 - argc; + float l = i * 2.1; + double m = l / 0.5; + long long int n = argc * 12345LL, o = 12345LL * (long long int)argc; + printf("%d %d %d %f %f %lld %lld\n", i, j, k, l, m, n, o); + exit(0); +} + ]])], + [ AC_MSG_RESULT([yes]) + LDFLAGS="$saved_LDFLAGS $_define_flag"], + [ AC_MSG_RESULT([no]) + LDFLAGS="$saved_LDFLAGS" ] + ) +}]) dnl OSSH_CHECK_HEADER_FOR_FIELD(field, header, symbol) dnl Does AC_EGREP_HEADER on 'header' for the string 'field' diff --git a/acss.c b/acss.c deleted file mode 100644 index 86e2c01a..00000000 --- a/acss.c +++ /dev/null @@ -1,267 +0,0 @@ -/* $Id: acss.c,v 1.4 2006/07/24 04:51:01 djm Exp $ */ -/* - * Copyright (c) 2004 The OpenBSD project - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include "includes.h" - -#include <string.h> - -#include <openssl/evp.h> - -#if !defined(EVP_CTRL_SET_ACSS_MODE) && (OPENSSL_VERSION_NUMBER >= 0x00906000L) - -#include "acss.h" - -/* decryption sbox */ -static unsigned char sboxdec[] = { - 0x33, 0x73, 0x3b, 0x26, 0x63, 0x23, 0x6b, 0x76, - 0x3e, 0x7e, 0x36, 0x2b, 0x6e, 0x2e, 0x66, 0x7b, - 0xd3, 0x93, 0xdb, 0x06, 0x43, 0x03, 0x4b, 0x96, - 0xde, 0x9e, 0xd6, 0x0b, 0x4e, 0x0e, 0x46, 0x9b, - 0x57, 0x17, 0x5f, 0x82, 0xc7, 0x87, 0xcf, 0x12, - 0x5a, 0x1a, 0x52, 0x8f, 0xca, 0x8a, 0xc2, 0x1f, - 0xd9, 0x99, 0xd1, 0x00, 0x49, 0x09, 0x41, 0x90, - 0xd8, 0x98, 0xd0, 0x01, 0x48, 0x08, 0x40, 0x91, - 0x3d, 0x7d, 0x35, 0x24, 0x6d, 0x2d, 0x65, 0x74, - 0x3c, 0x7c, 0x34, 0x25, 0x6c, 0x2c, 0x64, 0x75, - 0xdd, 0x9d, 0xd5, 0x04, 0x4d, 0x0d, 0x45, 0x94, - 0xdc, 0x9c, 0xd4, 0x05, 0x4c, 0x0c, 0x44, 0x95, - 0x59, 0x19, 0x51, 0x80, 0xc9, 0x89, 0xc1, 0x10, - 0x58, 0x18, 0x50, 0x81, 0xc8, 0x88, 0xc0, 0x11, - 0xd7, 0x97, 0xdf, 0x02, 0x47, 0x07, 0x4f, 0x92, - 0xda, 0x9a, 0xd2, 0x0f, 0x4a, 0x0a, 0x42, 0x9f, - 0x53, 0x13, 0x5b, 0x86, 0xc3, 0x83, 0xcb, 0x16, - 0x5e, 0x1e, 0x56, 0x8b, 0xce, 0x8e, 0xc6, 0x1b, - 0xb3, 0xf3, 0xbb, 0xa6, 0xe3, 0xa3, 0xeb, 0xf6, - 0xbe, 0xfe, 0xb6, 0xab, 0xee, 0xae, 0xe6, 0xfb, - 0x37, 0x77, 0x3f, 0x22, 0x67, 0x27, 0x6f, 0x72, - 0x3a, 0x7a, 0x32, 0x2f, 0x6a, 0x2a, 0x62, 0x7f, - 0xb9, 0xf9, 0xb1, 0xa0, 0xe9, 0xa9, 0xe1, 0xf0, - 0xb8, 0xf8, 0xb0, 0xa1, 0xe8, 0xa8, 0xe0, 0xf1, - 0x5d, 0x1d, 0x55, 0x84, 0xcd, 0x8d, 0xc5, 0x14, - 0x5c, 0x1c, 0x54, 0x85, 0xcc, 0x8c, 0xc4, 0x15, - 0xbd, 0xfd, 0xb5, 0xa4, 0xed, 0xad, 0xe5, 0xf4, - 0xbc, 0xfc, 0xb4, 0xa5, 0xec, 0xac, 0xe4, 0xf5, - 0x39, 0x79, 0x31, 0x20, 0x69, 0x29, 0x61, 0x70, - 0x38, 0x78, 0x30, 0x21, 0x68, 0x28, 0x60, 0x71, - 0xb7, 0xf7, 0xbf, 0xa2, 0xe7, 0xa7, 0xef, 0xf2, - 0xba, 0xfa, 0xb2, 0xaf, 0xea, 0xaa, 0xe2, 0xff -}; - -/* encryption sbox */ -static unsigned char sboxenc[] = { - 0x33, 0x3b, 0x73, 0x15, 0x53, 0x5b, 0x13, 0x75, - 0x3d, 0x35, 0x7d, 0x1b, 0x5d, 0x55, 0x1d, 0x7b, - 0x67, 0x6f, 0x27, 0x81, 0xc7, 0xcf, 0x87, 0x21, - 0x69, 0x61, 0x29, 0x8f, 0xc9, 0xc1, 0x89, 0x2f, - 0xe3, 0xeb, 0xa3, 0x05, 0x43, 0x4b, 0x03, 0xa5, - 0xed, 0xe5, 0xad, 0x0b, 0x4d, 0x45, 0x0d, 0xab, - 0xea, 0xe2, 0xaa, 0x00, 0x4a, 0x42, 0x0a, 0xa0, - 0xe8, 0xe0, 0xa8, 0x02, 0x48, 0x40, 0x08, 0xa2, - 0x3e, 0x36, 0x7e, 0x14, 0x5e, 0x56, 0x1e, 0x74, - 0x3c, 0x34, 0x7c, 0x16, 0x5c, 0x54, 0x1c, 0x76, - 0x6a, 0x62, 0x2a, 0x80, 0xca, 0xc2, 0x8a, 0x20, - 0x68, 0x60, 0x28, 0x82, 0xc8, 0xc0, 0x88, 0x22, - 0xee, 0xe6, 0xae, 0x04, 0x4e, 0x46, 0x0e, 0xa4, - 0xec, 0xe4, 0xac, 0x06, 0x4c, 0x44, 0x0c, 0xa6, - 0xe7, 0xef, 0xa7, 0x01, 0x47, 0x4f, 0x07, 0xa1, - 0xe9, 0xe1, 0xa9, 0x0f, 0x49, 0x41, 0x09, 0xaf, - 0x63, 0x6b, 0x23, 0x85, 0xc3, 0xcb, 0x83, 0x25, - 0x6d, 0x65, 0x2d, 0x8b, 0xcd, 0xc5, 0x8d, 0x2b, - 0x37, 0x3f, 0x77, 0x11, 0x57, 0x5f, 0x17, 0x71, - 0x39, 0x31, 0x79, 0x1f, 0x59, 0x51, 0x19, 0x7f, - 0xb3, 0xbb, 0xf3, 0x95, 0xd3, 0xdb, 0x93, 0xf5, - 0xbd, 0xb5, 0xfd, 0x9b, 0xdd, 0xd5, 0x9d, 0xfb, - 0xba, 0xb2, 0xfa, 0x90, 0xda, 0xd2, 0x9a, 0xf0, - 0xb8, 0xb0, 0xf8, 0x92, 0xd8, 0xd0, 0x98, 0xf2, - 0x6e, 0x66, 0x2e, 0x84, 0xce, 0xc6, 0x8e, 0x24, - 0x6c, 0x64, 0x2c, 0x86, 0xcc, 0xc4, 0x8c, 0x26, - 0x3a, 0x32, 0x7a, 0x10, 0x5a, 0x52, 0x1a, 0x70, - 0x38, 0x30, 0x78, 0x12, 0x58, 0x50, 0x18, 0x72, - 0xbe, 0xb6, 0xfe, 0x94, 0xde, 0xd6, 0x9e, 0xf4, - 0xbc, 0xb4, 0xfc, 0x96, 0xdc, 0xd4, 0x9c, 0xf6, - 0xb7, 0xbf, 0xf7, 0x91, 0xd7, 0xdf, 0x97, 0xf1, - 0xb9, 0xb1, 0xf9, 0x9f, 0xd9, 0xd1, 0x99, 0xff -}; - -static unsigned char reverse[] = { - 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, - 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, - 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, - 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, - 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, - 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, - 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, - 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, - 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, - 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, - 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, - 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, - 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, - 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, - 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, - 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, - 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, - 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, - 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, - 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, - 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, - 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, - 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, - 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, - 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, - 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, - 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, - 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, - 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, - 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, - 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, - 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff -}; - -/* - * Two linear feedback shift registers are used: - * - * lfsr17: polynomial of degree 17, primitive modulo 2 (listed in Schneier) - * x^15 + x + 1 - * lfsr25: polynomial of degree 25, not know if primitive modulo 2 - * x^13 + x^5 + x^4 + x^1 + 1 - * - * Output bits are discarded, instead the feedback bits are added to produce - * the cipher stream. Depending on the mode, feedback bytes may be inverted - * bit-wise before addition. - * - * The lfsrs are seeded with bytes from the raw key: - * - * lfsr17: byte 0[0:7] at bit 9 - * byte 1[0:7] at bit 0 - * - * lfsr25: byte 2[0:4] at bit 16 - * byte 2[5:7] at bit 22 - * byte 3[0:7] at bit 8 - * byte 4[0:7] at bit 0 - * - * To prevent 0 cycles, 1's are inject at bit 8 in lfrs17 and bit 21 in - * lfsr25. - * - */ - -int -acss(ACSS_KEY *key, unsigned long len, const unsigned char *in, - unsigned char *out) -{ - unsigned long i; - unsigned long lfsr17tmp, lfsr25tmp, lfsrsumtmp; - - lfsrsumtmp = lfsr17tmp = lfsr25tmp = 0; - - /* keystream is sum of lfsrs */ - for (i = 0; i < len; i++) { - lfsr17tmp = key->lfsr17 ^ (key->lfsr17 >> 14); - key->lfsr17 = (key->lfsr17 >> 8) - ^ (lfsr17tmp << 9) - ^ (lfsr17tmp << 12) - ^ (lfsr17tmp << 15); - key->lfsr17 &= 0x1ffff; /* 17 bit LFSR */ - - lfsr25tmp = key->lfsr25 - ^ (key->lfsr25 >> 3) - ^ (key->lfsr25 >> 4) - ^ (key->lfsr25 >> 12); - key->lfsr25 = (key->lfsr25 >> 8) ^ (lfsr25tmp << 17); - key->lfsr25 &= 0x1ffffff; /* 25 bit LFSR */ - - lfsrsumtmp = key->lfsrsum; - - /* addition */ - switch (key->mode) { - case ACSS_AUTHENTICATE: - case ACSS_DATA: - key->lfsrsum = 0xff & ~(key->lfsr17 >> 9); - key->lfsrsum += key->lfsr25 >> 17; - break; - case ACSS_SESSIONKEY: - key->lfsrsum = key->lfsr17 >> 9; - key->lfsrsum += key->lfsr25 >> 17; - break; - case ACSS_TITLEKEY: - key->lfsrsum = key->lfsr17 >> 9; - key->lfsrsum += 0xff & ~(key->lfsr25 >> 17); - break; - default: - return 1; - } - key->lfsrsum += (lfsrsumtmp >> 8); - - if (key->encrypt) { - out[i] = sboxenc[(in[i] ^ key->lfsrsum) & 0xff]; - } else { - out[i] = (sboxdec[in[i]] ^ key->lfsrsum) & 0xff; - } - } - - return 0; -} - -static void -acss_seed(ACSS_KEY *key) -{ - int i; - - /* if available, mangle with subkey */ - if (key->subkey_avilable) { - for (i = 0; i < ACSS_KEYSIZE; i++) - key->seed[i] = reverse[key->data[i] ^ key->subkey[i]]; - } else { - for (i = 0; i < ACSS_KEYSIZE; i++) - key->seed[i] = reverse[key->data[i]]; - } - - /* seed lfsrs */ - key->lfsr17 = key->seed[1] - | (key->seed[0] << 9) - | (1 << 8); /* inject 1 at bit 9 */ - key->lfsr25 = key->seed[4] - | (key->seed[3] << 8) - | ((key->seed[2] & 0x1f) << 16) - | ((key->seed[2] & 0xe0) << 17) - | (1 << 21); /* inject 1 at bit 22 */ - - key->lfsrsum = 0; -} - -void -acss_setkey(ACSS_KEY *key, const unsigned char *data, int enc, int mode) -{ - memcpy(key->data, data, sizeof(key->data)); - memset(key->subkey, 0, sizeof(key->subkey)); - - if (enc != -1) - key->encrypt = enc; - key->mode = mode; - key->subkey_avilable = 0; - - acss_seed(key); -} - -void -acss_setsubkey(ACSS_KEY *key, const unsigned char *subkey) -{ - memcpy(key->subkey, subkey, sizeof(key->subkey)); - key->subkey_avilable = 1; - acss_seed(key); -} -#endif diff --git a/acss.h b/acss.h deleted file mode 100644 index 91b48954..00000000 --- a/acss.h +++ /dev/null @@ -1,47 +0,0 @@ -/* $Id: acss.h,v 1.2 2004/02/06 04:22:43 dtucker Exp $ */ -/* - * Copyright (c) 2004 The OpenBSD project - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#ifndef _ACSS_H_ -#define _ACSS_H_ - -/* 40bit key */ -#define ACSS_KEYSIZE 5 - -/* modes of acss */ -#define ACSS_AUTHENTICATE 0 -#define ACSS_SESSIONKEY 1 -#define ACSS_TITLEKEY 2 -#define ACSS_DATA 3 - -typedef struct acss_key_st { - unsigned int lfsr17; /* current state of lfsrs */ - unsigned int lfsr25; - unsigned int lfsrsum; - unsigned char seed[ACSS_KEYSIZE]; - unsigned char data[ACSS_KEYSIZE]; - unsigned char subkey[ACSS_KEYSIZE]; - int encrypt; /* XXX make these bit flags? */ - int mode; - int seeded; - int subkey_avilable; -} ACSS_KEY; - -void acss_setkey(ACSS_KEY *, const unsigned char *, int, int); -void acss_setsubkey(ACSS_KEY *, const unsigned char *); -int acss(ACSS_KEY *, unsigned long, const unsigned char *, unsigned char *); - -#endif /* ifndef _ACSS_H_ */ diff --git a/addrmatch.c b/addrmatch.c index 5b6773cc..c4431463 100644 --- a/addrmatch.c +++ b/addrmatch.c @@ -1,4 +1,4 @@ -/* $OpenBSD: addrmatch.c,v 1.5 2010/02/26 20:29:54 djm Exp $ */ +/* $OpenBSD: addrmatch.c,v 1.9 2014/01/19 11:21:51 dtucker Exp $ */ /* * Copyright (c) 2004-2008 Damien Miller <djm@mindrot.org> @@ -88,13 +88,13 @@ addr_sa_to_xaddr(struct sockaddr *sa, socklen_t slen, struct xaddr *xa) switch (sa->sa_family) { case AF_INET: - if (slen < sizeof(*in4)) + if (slen < (socklen_t)sizeof(*in4)) return -1; xa->af = AF_INET; memcpy(&xa->v4, &in4->sin_addr, sizeof(xa->v4)); break; case AF_INET6: - if (slen < sizeof(*in6)) + if (slen < (socklen_t)sizeof(*in6)) return -1; xa->af = AF_INET6; memcpy(&xa->v6, &in6->sin6_addr, sizeof(xa->v6)); @@ -318,7 +318,7 @@ addr_pton_cidr(const char *p, struct xaddr *n, u_int *l) char addrbuf[64], *mp, *cp; /* Don't modify argument */ - if (p == NULL || strlcpy(addrbuf, p, sizeof(addrbuf)) > sizeof(addrbuf)) + if (p == NULL || strlcpy(addrbuf, p, sizeof(addrbuf)) >= sizeof(addrbuf)) return -1; if ((mp = strchr(addrbuf, '/')) != NULL) { @@ -420,7 +420,7 @@ addr_match_list(const char *addr, const char *_list) goto foundit; } } - xfree(o); + free(o); return ret; } @@ -494,7 +494,7 @@ addr_match_cidr_list(const char *addr, const char *_list) continue; } } - xfree(o); + free(o); return ret; } @@ -56,8 +56,10 @@ atomicio6(ssize_t (*f) (int, void *, size_t), int fd, void *_s, size_t n, ssize_t res; struct pollfd pfd; +#ifndef BROKEN_READ_COMPARISON pfd.fd = fd; pfd.events = f == read ? POLLIN : POLLOUT; +#endif while (n > pos) { res = (f) (fd, s + pos, n - pos); switch (res) { @@ -65,7 +67,9 @@ atomicio6(ssize_t (*f) (int, void *, size_t), int fd, void *_s, size_t n, if (errno == EINTR) continue; if (errno == EAGAIN || errno == EWOULDBLOCK) { +#ifndef BROKEN_READ_COMPARISON (void)poll(&pfd, 1, -1); +#endif continue; } return 0; diff --git a/audit-bsm.c b/audit-bsm.c index f196d4f1..61355914 100644 --- a/audit-bsm.c +++ b/audit-bsm.c @@ -1,4 +1,4 @@ -/* $Id: audit-bsm.c,v 1.7 2011/01/17 10:15:29 dtucker Exp $ */ +/* $Id: audit-bsm.c,v 1.8 2012/02/23 23:40:43 dtucker Exp $ */ /* * TODO @@ -45,6 +45,10 @@ #include <string.h> #include <unistd.h> +#ifdef BROKEN_BSM_API +#include <libscf.h> +#endif + #include "ssh.h" #include "log.h" #include "key.h" @@ -114,6 +118,12 @@ extern int aug_daemon_session(void); extern Authctxt *the_authctxt; static AuditInfoTermID ssh_bsm_tid; +#ifdef BROKEN_BSM_API +/* For some reason this constant is no longer defined + in Solaris 11. */ +#define BSM_TEXTBUFSZ 256 +#endif + /* Below is the low-level BSM interface code */ /* @@ -161,6 +171,65 @@ aug_get_machine(char *host, u_int32_t *addr, u_int32_t *type) } #endif +#ifdef BROKEN_BSM_API +/* + In Solaris 11 the audit daemon has been moved to SMF. In the process + they simply dropped getacna() from the API, since it read from a now + non-existent config file. This function re-implements getacna() to + read from the SMF repository instead. + */ +int +getacna(char *auditstring, int len) +{ + scf_handle_t *handle = NULL; + scf_property_t *property = NULL; + scf_value_t *value = NULL; + int ret = 0; + + handle = scf_handle_create(SCF_VERSION); + if (handle == NULL) + return -2; /* The man page for getacna on Solaris 10 states + we should return -2 in case of error and set + errno to indicate the error. We don't bother + with errno here, though, since the only use + of this function below doesn't check for errors + anyway. + */ + + ret = scf_handle_bind(handle); + if (ret == -1) + return -2; + + property = scf_property_create(handle); + if (property == NULL) + return -2; + + ret = scf_handle_decode_fmri(handle, + "svc:/system/auditd:default/:properties/preselection/naflags", + NULL, NULL, NULL, NULL, property, 0); + if (ret == -1) + return -2; + + value = scf_value_create(handle); + if (value == NULL) + return -2; + + ret = scf_property_get_value(property, value); + if (ret == -1) + return -2; + + ret = scf_value_get_astring(value, auditstring, len); + if (ret == -1) + return -2; + + scf_value_destroy(value); + scf_property_destroy(property); + scf_handle_destroy(handle); + + return 0; +} +#endif + /* * Check if the specified event is selected (enabled) for auditing. * Returns 1 if the event is selected, 0 if not and -1 on failure. @@ -213,7 +282,15 @@ bsm_audit_record(int typ, char *string, au_event_t event_no) (void) au_write(ad, au_to_text(string)); (void) au_write(ad, AUToReturnFunc(typ, rc)); +#ifdef BROKEN_BSM_API + /* The last argument is the event modifier flags. For + some seemingly undocumented reason it was added in + Solaris 11. */ + rc = au_close(ad, AU_TO_WRITE, event_no, 0); +#else rc = au_close(ad, AU_TO_WRITE, event_no); +#endif + if (rc < 0) error("BSM audit: %s failed to write \"%s\" record: %s", __func__, string, strerror(errno)); diff --git a/auth-chall.c b/auth-chall.c index 919b1eaa..0005aa88 100644 --- a/auth-chall.c +++ b/auth-chall.c @@ -1,4 +1,4 @@ -/* $OpenBSD: auth-chall.c,v 1.12 2006/08/03 03:34:41 deraadt Exp $ */ +/* $OpenBSD: auth-chall.c,v 1.13 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * @@ -69,11 +69,11 @@ get_challenge(Authctxt *authctxt) fatal("get_challenge: numprompts < 1"); challenge = xstrdup(prompts[0]); for (i = 0; i < numprompts; i++) - xfree(prompts[i]); - xfree(prompts); - xfree(name); - xfree(echo_on); - xfree(info); + free(prompts[i]); + free(prompts); + free(name); + free(echo_on); + free(info); return (challenge); } @@ -102,11 +102,11 @@ verify_response(Authctxt *authctxt, const char *response) authenticated = 1; for (i = 0; i < numprompts; i++) - xfree(prompts[i]); - xfree(prompts); - xfree(name); - xfree(echo_on); - xfree(info); + free(prompts[i]); + free(prompts); + free(name); + free(echo_on); + free(info); break; } device->free_ctx(authctxt->kbdintctxt); diff --git a/auth-krb5.c b/auth-krb5.c index d019fe20..6c62bdf5 100644 --- a/auth-krb5.c +++ b/auth-krb5.c @@ -1,4 +1,4 @@ -/* $OpenBSD: auth-krb5.c,v 1.19 2006/08/03 03:34:41 deraadt Exp $ */ +/* $OpenBSD: auth-krb5.c,v 1.20 2013/07/20 01:55:13 djm Exp $ */ /* * Kerberos v5 authentication and ticket-passing routines. * @@ -79,6 +79,7 @@ auth_krb5_password(Authctxt *authctxt, const char *password) krb5_ccache ccache = NULL; int len; char *client, *platform_client; + const char *errmsg; /* get platform-specific kerberos client principal name (if it exists) */ platform_client = platform_krb5_get_principal_name(authctxt->pw->pw_name); @@ -96,7 +97,12 @@ auth_krb5_password(Authctxt *authctxt, const char *password) goto out; #ifdef HEIMDAL +# ifdef HAVE_KRB5_CC_NEW_UNIQUE + problem = krb5_cc_new_unique(authctxt->krb5_ctx, + krb5_mcc_ops.prefix, NULL, &ccache); +# else problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_mcc_ops, &ccache); +# endif if (problem) goto out; @@ -115,8 +121,13 @@ auth_krb5_password(Authctxt *authctxt, const char *password) if (problem) goto out; +# ifdef HAVE_KRB5_CC_NEW_UNIQUE + problem = krb5_cc_new_unique(authctxt->krb5_ctx, + krb5_fcc_ops.prefix, NULL, &authctxt->krb5_fwd_ccache); +# else problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_fcc_ops, &authctxt->krb5_fwd_ccache); +# endif if (problem) goto out; @@ -146,7 +157,8 @@ auth_krb5_password(Authctxt *authctxt, const char *password) if (problem) goto out; - if (!krb5_kuserok(authctxt->krb5_ctx, authctxt->krb5_user, client)) { + if (!krb5_kuserok(authctxt->krb5_ctx, authctxt->krb5_user, + authctxt->pw->pw_name)) { problem = -1; goto out; } @@ -181,17 +193,19 @@ auth_krb5_password(Authctxt *authctxt, const char *password) out: restore_uid(); - if (platform_client != NULL) - xfree(platform_client); + free(platform_client); if (problem) { if (ccache) krb5_cc_destroy(authctxt->krb5_ctx, ccache); - if (authctxt->krb5_ctx != NULL && problem!=-1) - debug("Kerberos password authentication failed: %s", - krb5_get_err_text(authctxt->krb5_ctx, problem)); - else + if (authctxt->krb5_ctx != NULL && problem!=-1) { + errmsg = krb5_get_error_message(authctxt->krb5_ctx, + problem); + debug("Kerberos password authentication failed: %s", + errmsg); + krb5_free_error_message(authctxt->krb5_ctx, errmsg); + } else debug("Kerberos password authentication failed: %d", problem); @@ -226,7 +240,7 @@ krb5_cleanup_proc(Authctxt *authctxt) #ifndef HEIMDAL krb5_error_code ssh_krb5_cc_gen(krb5_context ctx, krb5_ccache *ccache) { - int tmpfd, ret; + int tmpfd, ret, oerrno; char ccname[40]; mode_t old_umask; @@ -237,16 +251,18 @@ ssh_krb5_cc_gen(krb5_context ctx, krb5_ccache *ccache) { old_umask = umask(0177); tmpfd = mkstemp(ccname + strlen("FILE:")); + oerrno = errno; umask(old_umask); if (tmpfd == -1) { - logit("mkstemp(): %.100s", strerror(errno)); - return errno; + logit("mkstemp(): %.100s", strerror(oerrno)); + return oerrno; } if (fchmod(tmpfd,S_IRUSR | S_IWUSR) == -1) { - logit("fchmod(): %.100s", strerror(errno)); + oerrno = errno; + logit("fchmod(): %.100s", strerror(oerrno)); close(tmpfd); - return errno; + return oerrno; } close(tmpfd); diff --git a/auth-options.c b/auth-options.c index 0e67bd8c..fa209eaa 100644 --- a/auth-options.c +++ b/auth-options.c @@ -1,4 +1,4 @@ -/* $OpenBSD: auth-options.c,v 1.56 2011/10/18 04:58:26 djm Exp $ */ +/* $OpenBSD: auth-options.c,v 1.62 2013/12/19 00:27:57 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -33,10 +33,6 @@ #include "auth-options.h" #include "hostfile.h" #include "auth.h" -#ifdef GSSAPI -#include "ssh-gss.h" -#endif -#include "monitor_wrap.h" /* Flags set authorized_keys flags */ int no_port_forwarding_flag = 0; @@ -72,15 +68,15 @@ auth_clear_options(void) while (custom_environment) { struct envstring *ce = custom_environment; custom_environment = ce->next; - xfree(ce->s); - xfree(ce); + free(ce->s); + free(ce); } if (forced_command) { - xfree(forced_command); + free(forced_command); forced_command = NULL; } if (authorized_principals) { - xfree(authorized_principals); + free(authorized_principals); authorized_principals = NULL; } forced_tun_device = -1; @@ -149,7 +145,7 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) if (strncasecmp(opts, cp, strlen(cp)) == 0) { opts += strlen(cp); if (forced_command != NULL) - xfree(forced_command); + free(forced_command); forced_command = xmalloc(strlen(opts) + 1); i = 0; while (*opts) { @@ -167,7 +163,7 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) file, linenum); auth_debug_add("%.100s, line %lu: missing end quote", file, linenum); - xfree(forced_command); + free(forced_command); forced_command = NULL; goto bad_option; } @@ -180,7 +176,7 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) if (strncasecmp(opts, cp, strlen(cp)) == 0) { opts += strlen(cp); if (authorized_principals != NULL) - xfree(authorized_principals); + free(authorized_principals); authorized_principals = xmalloc(strlen(opts) + 1); i = 0; while (*opts) { @@ -198,7 +194,7 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) file, linenum); auth_debug_add("%.100s, line %lu: missing end quote", file, linenum); - xfree(authorized_principals); + free(authorized_principals); authorized_principals = NULL; goto bad_option; } @@ -232,14 +228,14 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) file, linenum); auth_debug_add("%.100s, line %lu: missing end quote", file, linenum); - xfree(s); + free(s); goto bad_option; } s[i] = '\0'; auth_debug_add("Adding to environment: %.900s", s); debug("Adding to environment: %.900s", s); opts++; - new_envstring = xmalloc(sizeof(struct envstring)); + new_envstring = xcalloc(1, sizeof(struct envstring)); new_envstring->s = s; new_envstring->next = custom_environment; custom_environment = new_envstring; @@ -269,7 +265,7 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) file, linenum); auth_debug_add("%.100s, line %lu: missing end quote", file, linenum); - xfree(patterns); + free(patterns); goto bad_option; } patterns[i] = '\0'; @@ -277,7 +273,7 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) switch (match_host_and_ip(remote_host, remote_ip, patterns)) { case 1: - xfree(patterns); + free(patterns); /* Host name matches. */ goto next_option; case -1: @@ -287,7 +283,7 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) "invalid criteria", file, linenum); /* FALLTHROUGH */ case 0: - xfree(patterns); + free(patterns); logit("Authentication tried for %.100s with " "correct key but not from a permitted " "host (host=%.200s, ip=%.200s).", @@ -323,7 +319,7 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) file, linenum); auth_debug_add("%.100s, line %lu: missing " "end quote", file, linenum); - xfree(patterns); + free(patterns); goto bad_option; } patterns[i] = '\0'; @@ -337,7 +333,7 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) auth_debug_add("%.100s, line %lu: " "Bad permitopen specification", file, linenum); - xfree(patterns); + free(patterns); goto bad_option; } host = cleanhostname(host); @@ -346,12 +342,12 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) "<%.100s>", file, linenum, p ? p : ""); auth_debug_add("%.100s, line %lu: " "Bad permitopen port", file, linenum); - xfree(patterns); + free(patterns); goto bad_option; } - if (options.allow_tcp_forwarding) + if ((options.allow_tcp_forwarding & FORWARD_LOCAL) != 0) channel_add_permitted_opens(host, port); - xfree(patterns); + free(patterns); goto next_option; } cp = "tunnel=\""; @@ -370,13 +366,13 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) file, linenum); auth_debug_add("%.100s, line %lu: missing end quote", file, linenum); - xfree(tun); + free(tun); forced_tun_device = -1; goto bad_option; } tun[i] = '\0'; forced_tun_device = a2tun(tun, NULL); - xfree(tun); + free(tun); if (forced_tun_device == SSH_TUNID_ERR) { debug("%.100s, line %lu: invalid tun device", file, linenum); @@ -432,10 +428,11 @@ parse_option_list(u_char *optblob, size_t optblob_len, struct passwd *pw, { char *command, *allowed; const char *remote_ip; - u_char *name = NULL, *data_blob = NULL; + char *name = NULL; + u_char *data_blob = NULL; u_int nlen, dlen, clen; Buffer c, data; - int ret = -1, found; + int ret = -1, result, found; buffer_init(&data); @@ -484,7 +481,7 @@ parse_option_list(u_char *optblob, size_t optblob_len, struct passwd *pw, if (*cert_forced_command != NULL) { error("Certificate has multiple " "force-command options"); - xfree(command); + free(command); goto out; } *cert_forced_command = command; @@ -500,15 +497,16 @@ parse_option_list(u_char *optblob, size_t optblob_len, struct passwd *pw, if ((*cert_source_address_done)++) { error("Certificate has multiple " "source-address options"); - xfree(allowed); + free(allowed); goto out; } remote_ip = get_remote_ipaddr(); - switch (addr_match_cidr_list(remote_ip, - allowed)) { + result = addr_match_cidr_list(remote_ip, + allowed); + free(allowed); + switch (result) { case 1: /* accepted */ - xfree(allowed); break; case 0: /* no match */ @@ -521,12 +519,11 @@ parse_option_list(u_char *optblob, size_t optblob_len, struct passwd *pw, "is not permitted to use this " "certificate for login.", remote_ip); - xfree(allowed); goto out; case -1: + default: error("Certificate source-address " "contents invalid"); - xfree(allowed); goto out; } found = 1; @@ -548,9 +545,10 @@ parse_option_list(u_char *optblob, size_t optblob_len, struct passwd *pw, goto out; } buffer_clear(&data); - xfree(name); - xfree(data_blob); - name = data_blob = NULL; + free(name); + free(data_blob); + name = NULL; + data_blob = NULL; } /* successfully parsed all options */ ret = 0; @@ -559,13 +557,13 @@ parse_option_list(u_char *optblob, size_t optblob_len, struct passwd *pw, if (ret != 0 && cert_forced_command != NULL && *cert_forced_command != NULL) { - xfree(*cert_forced_command); + free(*cert_forced_command); *cert_forced_command = NULL; } if (name != NULL) - xfree(name); + free(name); if (data_blob != NULL) - xfree(data_blob); + free(data_blob); buffer_free(&data); buffer_free(&c); return ret; @@ -627,7 +625,7 @@ auth_cert_options(Key *k, struct passwd *pw) /* CA-specified forced command supersedes key option */ if (cert_forced_command != NULL) { if (forced_command != NULL) - xfree(forced_command); + free(forced_command); forced_command = cert_forced_command; } return 0; @@ -412,10 +412,9 @@ sshpam_thread_conv(int n, sshpam_const struct pam_message **msg, fail: for(i = 0; i < n; i++) { - if (reply[i].resp != NULL) - xfree(reply[i].resp); + free(reply[i].resp); } - xfree(reply); + free(reply); buffer_free(&buffer); return (PAM_CONV_ERR); } @@ -439,8 +438,10 @@ sshpam_thread(void *ctxtp) const char **ptr_pam_user = &pam_user; char *tz = getenv("TZ"); - pam_get_item(sshpam_handle, PAM_USER, + sshpam_err = pam_get_item(sshpam_handle, PAM_USER, (sshpam_const void **)ptr_pam_user); + if (sshpam_err != PAM_SUCCESS) + goto auth_fail; environ[0] = NULL; if (tz != NULL) @@ -586,10 +587,9 @@ sshpam_store_conv(int n, sshpam_const struct pam_message **msg, fail: for(i = 0; i < n; i++) { - if (reply[i].resp != NULL) - xfree(reply[i].resp); + free(reply[i].resp); } - xfree(reply); + free(reply); return (PAM_CONV_ERR); } @@ -693,7 +693,7 @@ sshpam_init_ctx(Authctxt *authctxt) /* Start the authentication thread */ if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, socks) == -1) { error("PAM: failed create sockets: %s", strerror(errno)); - xfree(ctxt); + free(ctxt); return (NULL); } ctxt->pam_psock = socks[0]; @@ -703,7 +703,7 @@ sshpam_init_ctx(Authctxt *authctxt) strerror(errno)); close(socks[0]); close(socks[1]); - xfree(ctxt); + free(ctxt); return (NULL); } cleanup_ctxt = ctxt; @@ -742,7 +742,7 @@ sshpam_query(void *ctx, char **name, char **info, strlcpy(**prompts + plen, msg, len - plen); plen += mlen; **echo_on = (type == PAM_PROMPT_ECHO_ON); - xfree(msg); + free(msg); return (0); case PAM_ERROR_MSG: case PAM_TEXT_INFO: @@ -753,7 +753,7 @@ sshpam_query(void *ctx, char **name, char **info, plen += mlen; strlcat(**prompts + plen, "\n", len - plen); plen++; - xfree(msg); + free(msg); break; case PAM_ACCT_EXPIRED: sshpam_account_status = 0; @@ -766,7 +766,7 @@ sshpam_query(void *ctx, char **name, char **info, *num = 0; **echo_on = 0; ctxt->pam_done = -1; - xfree(msg); + free(msg); return 0; } /* FALLTHROUGH */ @@ -776,7 +776,7 @@ sshpam_query(void *ctx, char **name, char **info, debug("PAM: %s", **prompts); buffer_append(&loginmsg, **prompts, strlen(**prompts)); - xfree(**prompts); + free(**prompts); **prompts = NULL; } if (type == PAM_SUCCESS) { @@ -790,7 +790,7 @@ sshpam_query(void *ctx, char **name, char **info, *num = 0; **echo_on = 0; ctxt->pam_done = 1; - xfree(msg); + free(msg); return (0); } error("PAM: %s for %s%.100s from %.100s", msg, @@ -801,7 +801,7 @@ sshpam_query(void *ctx, char **name, char **info, default: *num = 0; **echo_on = 0; - xfree(msg); + free(msg); ctxt->pam_done = -1; return (-1); } @@ -852,7 +852,7 @@ sshpam_free_ctx(void *ctxtp) debug3("PAM: %s entering", __func__); sshpam_thread_cleanup(); - xfree(ctxt); + free(ctxt); /* * We don't call sshpam_cleanup() here because we may need the PAM * handle at a later stage, e.g. when setting up a session. It's @@ -1006,10 +1006,9 @@ sshpam_tty_conv(int n, sshpam_const struct pam_message **msg, fail: for(i = 0; i < n; i++) { - if (reply[i].resp != NULL) - xfree(reply[i].resp); + free(reply[i].resp); } - xfree(reply); + free(reply); return (PAM_CONV_ERR); } @@ -1081,7 +1080,7 @@ do_pam_putenv(char *name, char *value) snprintf(compound, len, "%s=%s", name, value); ret = pam_putenv(sshpam_handle, compound); - xfree(compound); + free(compound); #endif return (ret); @@ -1108,8 +1107,8 @@ free_pam_environment(char **env) return; for (envp = env; *envp; envp++) - xfree(*envp); - xfree(env); + free(*envp); + free(env); } /* @@ -1165,10 +1164,9 @@ sshpam_passwd_conv(int n, sshpam_const struct pam_message **msg, fail: for(i = 0; i < n; i++) { - if (reply[i].resp != NULL) - xfree(reply[i].resp); + free(reply[i].resp); } - xfree(reply); + free(reply); return (PAM_CONV_ERR); } diff --git a/auth-passwd.c b/auth-passwd.c index b1c6ce09..68bbd18d 100644 --- a/auth-passwd.c +++ b/auth-passwd.c @@ -209,6 +209,7 @@ sys_auth_passwd(Authctxt *authctxt, const char *password) * Authentication is accepted if the encrypted passwords * are identical. */ - return (strcmp(encrypted_password, pw_password) == 0); + return encrypted_password != NULL && + strcmp(encrypted_password, pw_password) == 0; } #endif @@ -1,4 +1,4 @@ -/* $OpenBSD: auth-rsa.c,v 1.80 2011/05/23 03:30:07 djm Exp $ */ +/* $OpenBSD: auth-rsa.c,v 1.85 2013/07/12 00:19:58 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -164,9 +164,8 @@ static int rsa_key_allowed_in_file(struct passwd *pw, char *file, const BIGNUM *client_n, Key **rkey) { - char line[SSH_MAX_PUBKEY_BYTES]; - int allowed = 0; - u_int bits; + char *fp, line[SSH_MAX_PUBKEY_BYTES]; + int allowed = 0, bits; FILE *f; u_long linenum = 0; Key *key; @@ -227,11 +226,16 @@ rsa_key_allowed_in_file(struct passwd *pw, char *file, /* check the real bits */ keybits = BN_num_bits(key->rsa->n); - if (keybits < 0 || bits != (u_int)keybits) + if (keybits < 0 || bits != keybits) logit("Warning: %s, line %lu: keysize mismatch: " "actual %d vs. announced %d.", file, linenum, BN_num_bits(key->rsa->n), bits); + fp = key_fingerprint(key, SSH_FP_MD5, SSH_FP_HEX); + debug("matching key found: file %s, line %lu %s %s", + file, linenum, key_type(key), fp); + free(fp); + /* Never accept a revoked key */ if (auth_key_is_revoked(key)) break; @@ -276,10 +280,12 @@ auth_rsa_key_allowed(struct passwd *pw, BIGNUM *client_n, Key **rkey) temporarily_use_uid(pw); for (i = 0; !allowed && i < options.num_authkeys_files; i++) { + if (strcasecmp(options.authorized_keys_files[i], "none") == 0) + continue; file = expand_authorized_keys( options.authorized_keys_files[i], pw); allowed = rsa_key_allowed_in_file(pw, file, client_n, rkey); - xfree(file); + free(file); } restore_uid(); @@ -296,7 +302,6 @@ int auth_rsa(Authctxt *authctxt, BIGNUM *client_n) { Key *key; - char *fp; struct passwd *pw = authctxt->pw; /* no user given */ @@ -326,11 +331,7 @@ auth_rsa(Authctxt *authctxt, BIGNUM *client_n) * options; this will be reset if the options cause the * authentication to be rejected. */ - fp = key_fingerprint(key, SSH_FP_MD5, SSH_FP_HEX); - verbose("Found matching %s key: %s", - key_type(key), fp); - xfree(fp); - key_free(key); + pubkey_auth_info(authctxt, key, NULL); packet_send_debug("RSA authentication accepted."); return (1); @@ -1,4 +1,4 @@ -/* $OpenBSD: auth.c,v 1.94 2011/05/23 03:33:38 djm Exp $ */ +/* $OpenBSD: auth.c,v 1.103 2013/05/19 02:42:42 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * @@ -71,6 +71,8 @@ #endif #include "authfile.h" #include "monitor_wrap.h" +#include "krl.h" +#include "compat.h" /* import */ extern ServerOptions options; @@ -164,17 +166,17 @@ allowed_user(struct passwd * pw) if (stat(shell, &st) != 0) { logit("User %.100s not allowed because shell %.100s " "does not exist", pw->pw_name, shell); - xfree(shell); + free(shell); return 0; } if (S_ISREG(st.st_mode) == 0 || (st.st_mode & (S_IXOTH|S_IXUSR|S_IXGRP)) == 0) { logit("User %.100s not allowed because shell %.100s " "is not executable", pw->pw_name, shell); - xfree(shell); + free(shell); return 0; } - xfree(shell); + free(shell); } if (options.num_deny_users > 0 || options.num_allow_users > 0 || @@ -251,7 +253,25 @@ allowed_user(struct passwd * pw) } void -auth_log(Authctxt *authctxt, int authenticated, char *method, char *info) +auth_info(Authctxt *authctxt, const char *fmt, ...) +{ + va_list ap; + int i; + + free(authctxt->info); + authctxt->info = NULL; + + va_start(ap, fmt); + i = vasprintf(&authctxt->info, fmt, ap); + va_end(ap); + + if (i < 0 || authctxt->info == NULL) + fatal("vasprintf failed"); +} + +void +auth_log(Authctxt *authctxt, int authenticated, int partial, + const char *method, const char *submethod) { void (*authlog) (const char *fmt,...) = verbose; char *authmsg; @@ -268,17 +288,24 @@ auth_log(Authctxt *authctxt, int authenticated, char *method, char *info) if (authctxt->postponed) authmsg = "Postponed"; + else if (partial) + authmsg = "Partial"; else authmsg = authenticated ? "Accepted" : "Failed"; - authlog("%s %s for %s%.100s from %.200s port %d%s", + authlog("%s %s%s%s for %s%.100s from %.200s port %d %s%s%s", authmsg, method, + submethod != NULL ? "/" : "", submethod == NULL ? "" : submethod, authctxt->valid ? "" : "invalid user ", authctxt->user, get_remote_ipaddr(), get_remote_port(), - info); + compat20 ? "ssh2" : "ssh1", + authctxt->info != NULL ? ": " : "", + authctxt->info != NULL ? authctxt->info : ""); + free(authctxt->info); + authctxt->info = NULL; #ifdef CUSTOM_FAILED_LOGIN if (authenticated == 0 && !authctxt->postponed && @@ -303,7 +330,7 @@ auth_log(Authctxt *authctxt, int authenticated, char *method, char *info) * Check whether root logins are disallowed. */ int -auth_root_allowed(char *method) +auth_root_allowed(const char *method) { switch (options.permit_root_login) { case PERMIT_YES: @@ -350,14 +377,15 @@ expand_authorized_keys(const char *filename, struct passwd *pw) i = snprintf(ret, sizeof(ret), "%s/%s", pw->pw_dir, file); if (i < 0 || (size_t)i >= sizeof(ret)) fatal("expand_authorized_keys: path too long"); - xfree(file); + free(file); return (xstrdup(ret)); } char * authorized_principals_file(struct passwd *pw) { - if (options.authorized_principals_file == NULL) + if (options.authorized_principals_file == NULL || + strcasecmp(options.authorized_principals_file, "none") == 0) return NULL; return expand_authorized_keys(options.authorized_principals_file, pw); } @@ -391,7 +419,7 @@ check_key_in_hostfiles(struct passwd *pw, Key *key, const char *host, load_hostkeys(hostkeys, host, user_hostfile); restore_uid(); } - xfree(user_hostfile); + free(user_hostfile); } host_status = check_key_in_hostkeys(hostkeys, key, &found); if (host_status == HOST_REVOKED) @@ -408,41 +436,42 @@ check_key_in_hostfiles(struct passwd *pw, Key *key, const char *host, return host_status; } - /* - * Check a given file for security. This is defined as all components + * Check a given path for security. This is defined as all components * of the path to the file must be owned by either the owner of * of the file or root and no directories must be group or world writable. * * XXX Should any specific check be done for sym links ? * - * Takes an open file descriptor, the file name, a uid and and + * Takes a file name, its stat information (preferably from fstat() to + * avoid races), the uid of the expected owner, their home directory and an * error buffer plus max size as arguments. * * Returns 0 on success and -1 on failure */ -static int -secure_filename(FILE *f, const char *file, struct passwd *pw, - char *err, size_t errlen) +int +auth_secure_path(const char *name, struct stat *stp, const char *pw_dir, + uid_t uid, char *err, size_t errlen) { - uid_t uid = pw->pw_uid; char buf[MAXPATHLEN], homedir[MAXPATHLEN]; char *cp; int comparehome = 0; struct stat st; - if (realpath(file, buf) == NULL) { - snprintf(err, errlen, "realpath %s failed: %s", file, + if (realpath(name, buf) == NULL) { + snprintf(err, errlen, "realpath %s failed: %s", name, strerror(errno)); return -1; } - if (realpath(pw->pw_dir, homedir) != NULL) + if (pw_dir != NULL && realpath(pw_dir, homedir) != NULL) comparehome = 1; - /* check the open file to avoid races */ - if (fstat(fileno(f), &st) < 0 || - (st.st_uid != 0 && st.st_uid != uid) || - (st.st_mode & 022) != 0) { + if (!S_ISREG(stp->st_mode)) { + snprintf(err, errlen, "%s is not a regular file", buf); + return -1; + } + if ((!platform_sys_dir_uid(stp->st_uid) && stp->st_uid != uid) || + (stp->st_mode & 022) != 0) { snprintf(err, errlen, "bad ownership or modes for file %s", buf); return -1; @@ -457,7 +486,7 @@ secure_filename(FILE *f, const char *file, struct passwd *pw, strlcpy(buf, cp, sizeof(buf)); if (stat(buf, &st) < 0 || - (st.st_uid != 0 && st.st_uid != uid) || + (!platform_sys_dir_uid(st.st_uid) && st.st_uid != uid) || (st.st_mode & 022) != 0) { snprintf(err, errlen, "bad ownership or modes for directory %s", buf); @@ -478,6 +507,27 @@ secure_filename(FILE *f, const char *file, struct passwd *pw, return 0; } +/* + * Version of secure_path() that accepts an open file descriptor to + * avoid races. + * + * Returns 0 on success and -1 on failure + */ +static int +secure_filename(FILE *f, const char *file, struct passwd *pw, + char *err, size_t errlen) +{ + struct stat st; + + /* check the open file to avoid races */ + if (fstat(fileno(f), &st) < 0) { + snprintf(err, errlen, "cannot stat file %s: %s", + file, strerror(errno)); + return -1; + } + return auth_secure_path(file, &st, pw->pw_dir, pw->pw_uid, err, errlen); +} + static FILE * auth_openfile(const char *file, struct passwd *pw, int strict_modes, int log_missing, char *file_type) @@ -544,9 +594,10 @@ getpwnamallow(const char *user) #endif #endif struct passwd *pw; + struct connection_info *ci = get_connection_info(1, options.use_dns); - parse_server_match_config(&options, user, - get_canonical_hostname(options.use_dns), get_remote_ipaddr()); + ci->user = user; + parse_server_match_config(&options, ci); #if defined(_AIX) && defined(HAVE_SETAUTHDB) aix_setauthdb(user); @@ -612,7 +663,16 @@ auth_key_is_revoked(Key *key) if (options.revoked_keys_file == NULL) return 0; - + switch (ssh_krl_file_contains_key(options.revoked_keys_file, key)) { + case 0: + return 0; /* Not revoked */ + case -2: + break; /* Not a KRL */ + default: + goto revoked; + } + debug3("%s: treating %s as a key list", __func__, + options.revoked_keys_file); switch (key_in_file(key, options.revoked_keys_file, 0)) { case 0: /* key not revoked */ @@ -623,11 +683,12 @@ auth_key_is_revoked(Key *key) "authentication"); return 1; case 1: + revoked: /* Key revoked */ key_fp = key_fingerprint(key, SSH_FP_MD5, SSH_FP_HEX); error("WARNING: authentication attempt with a revoked " "%s key %s ", key_type(key), key_fp); - xfree(key_fp); + free(key_fp); return 1; } fatal("key_in_file returned junk"); @@ -658,7 +719,7 @@ auth_debug_send(void) while (buffer_len(&auth_debug)) { msg = buffer_get_string(&auth_debug, NULL); packet_send_debug("%s", msg); - xfree(msg); + free(msg); } } @@ -682,10 +743,12 @@ fakepw(void) fake.pw_name = "NOUSER"; fake.pw_passwd = "$2a$06$r3.juUaHZDlIbQaO2dS9FuYxL1W9M81R1Tc92PoSNmzvpEqLkLGrK"; +#ifdef HAVE_STRUCT_PASSWD_PW_GECOS fake.pw_gecos = "NOUSER"; +#endif fake.pw_uid = privsep_pw == NULL ? (uid_t)-1 : privsep_pw->pw_uid; fake.pw_gid = privsep_pw == NULL ? (gid_t)-1 : privsep_pw->pw_gid; -#ifdef HAVE_PW_CLASS_IN_PASSWD +#ifdef HAVE_STRUCT_PASSWD_PW_CLASS fake.pw_class = ""; #endif fake.pw_dir = "/nonexist"; @@ -1,4 +1,4 @@ -/* $OpenBSD: auth.h,v 1.69 2011/05/23 03:30:07 djm Exp $ */ +/* $OpenBSD: auth.h,v 1.76 2013/07/19 07:37:48 markus Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. @@ -60,10 +60,13 @@ struct Authctxt { struct passwd *pw; /* set if 'valid' */ char *style; void *kbdintctxt; + char *info; /* Extra info for next auth_log */ void *jpake_ctx; #ifdef BSD_AUTH auth_session_t *as; #endif + char **auth_methods; /* modified from server config */ + u_int num_auth_methods; #ifdef KRB5 krb5_context krb5_ctx; krb5_ccache krb5_fwd_ccache; @@ -119,6 +122,12 @@ int auth_rsa_key_allowed(struct passwd *, BIGNUM *, Key **); int auth_rhosts_rsa_key_allowed(struct passwd *, char *, char *, Key *); int hostbased_key_allowed(struct passwd *, const char *, char *, Key *); int user_key_allowed(struct passwd *, Key *); +void pubkey_auth_info(Authctxt *, const Key *, const char *, ...) + __attribute__((__format__ (printf, 3, 4))); + +struct stat; +int auth_secure_path(const char *, struct stat *, const char *, uid_t, + char *, size_t); #ifdef KRB5 int auth_krb5(Authctxt *authctxt, krb5_data *auth, char **client, krb5_data *); @@ -142,12 +151,20 @@ void disable_forwarding(void); void do_authentication(Authctxt *); void do_authentication2(Authctxt *); -void auth_log(Authctxt *, int, char *, char *); -void userauth_finish(Authctxt *, int, char *); +void auth_info(Authctxt *authctxt, const char *, ...) + __attribute__((__format__ (printf, 2, 3))) + __attribute__((__nonnull__ (2))); +void auth_log(Authctxt *, int, int, const char *, const char *); +void userauth_finish(Authctxt *, int, const char *, const char *); +int auth_root_allowed(const char *); + void userauth_send_banner(const char *); -int auth_root_allowed(char *); char *auth2_read_banner(void); +int auth2_methods_valid(const char *, int); +int auth2_update_methods_lists(Authctxt *, const char *, const char *); +int auth2_setup_methods_lists(Authctxt *); +int auth2_method_allowed(Authctxt *, const char *, const char *); void privsep_challenge_enable(void); @@ -181,10 +198,12 @@ check_key_in_hostfiles(struct passwd *, Key *, const char *, /* hostkey handling */ Key *get_hostkey_by_index(int); +Key *get_hostkey_public_by_index(int); Key *get_hostkey_public_by_type(int); Key *get_hostkey_private_by_type(int); int get_hostkey_index(Key *); int ssh1_session_key(BIGNUM *); +void sshd_hostkey_sign(Key *, Key *, u_char **, u_int *, u_char *, u_int); /* debug messages during authentication */ void auth_debug_add(const char *fmt,...) __attribute__((format(printf, 1, 2))); @@ -1,4 +1,4 @@ -/* $OpenBSD: auth1.c,v 1.75 2010/08/31 09:58:37 djm Exp $ */ +/* $OpenBSD: auth1.c,v 1.79 2013/05/19 02:42:42 djm Exp $ */ /* * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland * All rights reserved @@ -45,11 +45,11 @@ extern ServerOptions options; extern Buffer loginmsg; -static int auth1_process_password(Authctxt *, char *, size_t); -static int auth1_process_rsa(Authctxt *, char *, size_t); -static int auth1_process_rhosts_rsa(Authctxt *, char *, size_t); -static int auth1_process_tis_challenge(Authctxt *, char *, size_t); -static int auth1_process_tis_response(Authctxt *, char *, size_t); +static int auth1_process_password(Authctxt *); +static int auth1_process_rsa(Authctxt *); +static int auth1_process_rhosts_rsa(Authctxt *); +static int auth1_process_tis_challenge(Authctxt *); +static int auth1_process_tis_response(Authctxt *); static char *client_user = NULL; /* Used to fill in remote user for PAM */ @@ -57,7 +57,7 @@ struct AuthMethod1 { int type; char *name; int *enabled; - int (*method)(Authctxt *, char *, size_t); + int (*method)(Authctxt *); }; const struct AuthMethod1 auth1_methods[] = { @@ -112,7 +112,7 @@ get_authname(int type) /*ARGSUSED*/ static int -auth1_process_password(Authctxt *authctxt, char *info, size_t infolen) +auth1_process_password(Authctxt *authctxt) { int authenticated = 0; char *password; @@ -130,14 +130,14 @@ auth1_process_password(Authctxt *authctxt, char *info, size_t infolen) authenticated = PRIVSEP(auth_password(authctxt, password)); memset(password, 0, dlen); - xfree(password); + free(password); return (authenticated); } /*ARGSUSED*/ static int -auth1_process_rsa(Authctxt *authctxt, char *info, size_t infolen) +auth1_process_rsa(Authctxt *authctxt) { int authenticated = 0; BIGNUM *n; @@ -155,7 +155,7 @@ auth1_process_rsa(Authctxt *authctxt, char *info, size_t infolen) /*ARGSUSED*/ static int -auth1_process_rhosts_rsa(Authctxt *authctxt, char *info, size_t infolen) +auth1_process_rhosts_rsa(Authctxt *authctxt) { int keybits, authenticated = 0; u_int bits; @@ -187,14 +187,14 @@ auth1_process_rhosts_rsa(Authctxt *authctxt, char *info, size_t infolen) client_host_key); key_free(client_host_key); - snprintf(info, infolen, " ruser %.100s", client_user); + auth_info(authctxt, "ruser %.100s", client_user); return (authenticated); } /*ARGSUSED*/ static int -auth1_process_tis_challenge(Authctxt *authctxt, char *info, size_t infolen) +auth1_process_tis_challenge(Authctxt *authctxt) { char *challenge; @@ -204,7 +204,7 @@ auth1_process_tis_challenge(Authctxt *authctxt, char *info, size_t infolen) debug("sending challenge '%s'", challenge); packet_start(SSH_SMSG_AUTH_TIS_CHALLENGE); packet_put_cstring(challenge); - xfree(challenge); + free(challenge); packet_send(); packet_write_wait(); @@ -213,7 +213,7 @@ auth1_process_tis_challenge(Authctxt *authctxt, char *info, size_t infolen) /*ARGSUSED*/ static int -auth1_process_tis_response(Authctxt *authctxt, char *info, size_t infolen) +auth1_process_tis_response(Authctxt *authctxt) { int authenticated = 0; char *response; @@ -223,7 +223,7 @@ auth1_process_tis_response(Authctxt *authctxt, char *info, size_t infolen) packet_check_eom(); authenticated = verify_response(authctxt, response); memset(response, 'r', dlen); - xfree(response); + free(response); return (authenticated); } @@ -236,7 +236,6 @@ static void do_authloop(Authctxt *authctxt) { int authenticated = 0; - char info[1024]; int prev = 0, type = 0; const struct AuthMethod1 *meth; @@ -253,7 +252,8 @@ do_authloop(Authctxt *authctxt) if (options.use_pam && (PRIVSEP(do_pam_account()))) #endif { - auth_log(authctxt, 1, "without authentication", ""); + auth_log(authctxt, 1, 0, "without authentication", + NULL); return; } } @@ -267,7 +267,6 @@ do_authloop(Authctxt *authctxt) /* default to fail */ authenticated = 0; - info[0] = '\0'; /* Get a packet from the client. */ prev = type; @@ -297,7 +296,7 @@ do_authloop(Authctxt *authctxt) goto skip; } - authenticated = meth->method(authctxt, info, sizeof(info)); + authenticated = meth->method(authctxt); if (authenticated == -1) continue; /* "postponed" */ @@ -352,12 +351,10 @@ do_authloop(Authctxt *authctxt) skip: /* Log before sending the reply */ - auth_log(authctxt, authenticated, get_authname(type), info); + auth_log(authctxt, authenticated, 0, get_authname(type), NULL); - if (client_user != NULL) { - xfree(client_user); - client_user = NULL; - } + free(client_user); + client_user = NULL; if (authenticated) return; @@ -406,6 +403,11 @@ do_authentication(Authctxt *authctxt) authctxt->pw = fakepw(); } + /* Configuration may have changed as a result of Match */ + if (options.num_auth_methods != 0) + fatal("AuthenticationMethods is not supported with SSH " + "protocol 1"); + setproctitle("%s%s", authctxt->valid ? user : "unknown", use_privsep ? " [net]" : ""); diff --git a/auth2-chall.c b/auth2-chall.c index e6dbffe2..98f3093c 100644 --- a/auth2-chall.c +++ b/auth2-chall.c @@ -1,4 +1,4 @@ -/* $OpenBSD: auth2-chall.c,v 1.34 2008/12/09 04:32:22 djm Exp $ */ +/* $OpenBSD: auth2-chall.c,v 1.38 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * Copyright (c) 2001 Per Allansson. All rights reserved. @@ -147,15 +147,13 @@ kbdint_free(KbdintAuthctxt *kbdintctxt) { if (kbdintctxt->device) kbdint_reset_device(kbdintctxt); - if (kbdintctxt->devices) { - xfree(kbdintctxt->devices); - kbdintctxt->devices = NULL; - } - xfree(kbdintctxt); + free(kbdintctxt->devices); + bzero(kbdintctxt, sizeof(*kbdintctxt)); + free(kbdintctxt); } /* get next device */ static int -kbdint_next_device(KbdintAuthctxt *kbdintctxt) +kbdint_next_device(Authctxt *authctxt, KbdintAuthctxt *kbdintctxt) { size_t len; char *t; @@ -169,12 +167,16 @@ kbdint_next_device(KbdintAuthctxt *kbdintctxt) if (len == 0) break; - for (i = 0; devices[i]; i++) + for (i = 0; devices[i]; i++) { + if (!auth2_method_allowed(authctxt, + "keyboard-interactive", devices[i]->name)) + continue; if (strncmp(kbdintctxt->devices, devices[i]->name, len) == 0) kbdintctxt->device = devices[i]; + } t = kbdintctxt->devices; kbdintctxt->devices = t[len] ? xstrdup(t+len+1) : NULL; - xfree(t); + free(t); debug2("kbdint_next_device: devices %s", kbdintctxt->devices ? kbdintctxt->devices : "<empty>"); } while (kbdintctxt->devices && !kbdintctxt->device); @@ -221,7 +223,7 @@ auth2_challenge_start(Authctxt *authctxt) debug2("auth2_challenge_start: devices %s", kbdintctxt->devices ? kbdintctxt->devices : "<empty>"); - if (kbdint_next_device(kbdintctxt) == 0) { + if (kbdint_next_device(authctxt, kbdintctxt) == 0) { auth2_challenge_stop(authctxt); return 0; } @@ -268,11 +270,11 @@ send_userauth_info_request(Authctxt *authctxt) packet_write_wait(); for (i = 0; i < kbdintctxt->nreq; i++) - xfree(prompts[i]); - xfree(prompts); - xfree(echo_on); - xfree(name); - xfree(instr); + free(prompts[i]); + free(prompts); + free(echo_on); + free(name); + free(instr); return 1; } @@ -283,7 +285,8 @@ input_userauth_info_response(int type, u_int32_t seq, void *ctxt) KbdintAuthctxt *kbdintctxt; int authenticated = 0, res; u_int i, nresp; - char **response = NULL, *method; + const char *devicename = NULL; + char **response = NULL; if (authctxt == NULL) fatal("input_userauth_info_response: no authctxt"); @@ -310,10 +313,9 @@ input_userauth_info_response(int type, u_int32_t seq, void *ctxt) for (i = 0; i < nresp; i++) { memset(response[i], 'r', strlen(response[i])); - xfree(response[i]); + free(response[i]); } - if (response) - xfree(response); + free(response); switch (res) { case 0: @@ -329,9 +331,7 @@ input_userauth_info_response(int type, u_int32_t seq, void *ctxt) /* Failure! */ break; } - - xasprintf(&method, "keyboard-interactive/%s", kbdintctxt->device->name); - + devicename = kbdintctxt->device->name; if (!authctxt->postponed) { if (authenticated) { auth2_challenge_stop(authctxt); @@ -341,8 +341,8 @@ input_userauth_info_response(int type, u_int32_t seq, void *ctxt) auth2_challenge_start(authctxt); } } - userauth_finish(authctxt, authenticated, method); - xfree(method); + userauth_finish(authctxt, authenticated, "keyboard-interactive", + devicename); } void diff --git a/auth2-gss.c b/auth2-gss.c index 0d59b217..638d8f88 100644 --- a/auth2-gss.c +++ b/auth2-gss.c @@ -1,4 +1,4 @@ -/* $OpenBSD: auth2-gss.c,v 1.17 2011/03/10 02:52:57 djm Exp $ */ +/* $OpenBSD: auth2-gss.c,v 1.20 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2001-2003 Simon Wilkinson. All rights reserved. @@ -81,8 +81,7 @@ userauth_gssapi(Authctxt *authctxt) do { mechs--; - if (doid) - xfree(doid); + free(doid); present = 0; doid = packet_get_string(&len); @@ -101,7 +100,7 @@ userauth_gssapi(Authctxt *authctxt) gss_release_oid_set(&ms, &supported); if (!present) { - xfree(doid); + free(doid); authctxt->server_caused_failure = 1; return (0); } @@ -109,7 +108,7 @@ userauth_gssapi(Authctxt *authctxt) if (GSS_ERROR(PRIVSEP(ssh_gssapi_server_ctx(&ctxt, &goid)))) { if (ctxt != NULL) ssh_gssapi_delete_ctx(&ctxt); - xfree(doid); + free(doid); authctxt->server_caused_failure = 1; return (0); } @@ -122,7 +121,7 @@ userauth_gssapi(Authctxt *authctxt) packet_put_string(doid, len); packet_send(); - xfree(doid); + free(doid); dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_TOKEN, &input_gssapi_token); dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_ERRTOK, &input_gssapi_errtok); @@ -153,7 +152,7 @@ input_gssapi_token(int type, u_int32_t plen, void *ctxt) maj_status = PRIVSEP(ssh_gssapi_accept_ctx(gssctxt, &recv_tok, &send_tok, &flags)); - xfree(recv_tok.value); + free(recv_tok.value); if (GSS_ERROR(maj_status)) { if (send_tok.length != 0) { @@ -163,7 +162,7 @@ input_gssapi_token(int type, u_int32_t plen, void *ctxt) } authctxt->postponed = 0; dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_TOKEN, NULL); - userauth_finish(authctxt, 0, "gssapi-with-mic"); + userauth_finish(authctxt, 0, "gssapi-with-mic", NULL); } else { if (send_tok.length != 0) { packet_start(SSH2_MSG_USERAUTH_GSSAPI_TOKEN); @@ -208,7 +207,7 @@ input_gssapi_errtok(int type, u_int32_t plen, void *ctxt) maj_status = PRIVSEP(ssh_gssapi_accept_ctx(gssctxt, &recv_tok, &send_tok, NULL)); - xfree(recv_tok.value); + free(recv_tok.value); /* We can't return anything to the client, even if we wanted to */ dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_TOKEN, NULL); @@ -229,14 +228,11 @@ static void input_gssapi_exchange_complete(int type, u_int32_t plen, void *ctxt) { Authctxt *authctxt = ctxt; - Gssctxt *gssctxt; int authenticated; if (authctxt == NULL || (authctxt->methoddata == NULL && !use_privsep)) fatal("No authentication or GSSAPI context"); - gssctxt = authctxt->methoddata; - /* * We don't need to check the status, because we're only enabled in * the dispatcher once the exchange is complete @@ -251,7 +247,7 @@ input_gssapi_exchange_complete(int type, u_int32_t plen, void *ctxt) dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_ERRTOK, NULL); dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_MIC, NULL); dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE, NULL); - userauth_finish(authctxt, authenticated, "gssapi-with-mic"); + userauth_finish(authctxt, authenticated, "gssapi-with-mic", NULL); } static void @@ -284,14 +280,14 @@ input_gssapi_mic(int type, u_int32_t plen, void *ctxt) logit("GSSAPI MIC check failed"); buffer_free(&b); - xfree(mic.value); + free(mic.value); authctxt->postponed = 0; dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_TOKEN, NULL); dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_ERRTOK, NULL); dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_MIC, NULL); dispatch_set(SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE, NULL); - userauth_finish(authctxt, authenticated, "gssapi-with-mic"); + userauth_finish(authctxt, authenticated, "gssapi-with-mic", NULL); } Authmethod method_gssapi = { diff --git a/auth2-hostbased.c b/auth2-hostbased.c index cdf442f9..488008f6 100644 --- a/auth2-hostbased.c +++ b/auth2-hostbased.c @@ -1,4 +1,4 @@ -/* $OpenBSD: auth2-hostbased.c,v 1.14 2010/08/04 05:42:47 djm Exp $ */ +/* $OpenBSD: auth2-hostbased.c,v 1.17 2013/12/30 23:52:27 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * @@ -100,6 +100,12 @@ userauth_hostbased(Authctxt *authctxt) "(received %d, expected %d)", key->type, pktype); goto done; } + if (key_type_plain(key->type) == KEY_RSA && + (datafellows & SSH_BUG_RSASIGMD5) != 0) { + error("Refusing RSA key because peer uses unsafe " + "signature format"); + goto done; + } service = datafellows & SSH_BUG_HBSERVICE ? "ssh-userauth" : authctxt->service; buffer_init(&b); @@ -116,6 +122,10 @@ userauth_hostbased(Authctxt *authctxt) #ifdef DEBUG_PK buffer_dump(&b); #endif + + pubkey_auth_info(authctxt, key, + "client user \"%.100s\", client host \"%.100s\"", cuser, chost); + /* test for allowed key and correct signature */ authenticated = 0; if (PRIVSEP(hostbased_key_allowed(authctxt->pw, cuser, chost, key)) && @@ -128,11 +138,11 @@ done: debug2("userauth_hostbased: authenticated %d", authenticated); if (key != NULL) key_free(key); - xfree(pkalg); - xfree(pkblob); - xfree(cuser); - xfree(chost); - xfree(sig); + free(pkalg); + free(pkblob); + free(cuser); + free(chost); + free(sig); return authenticated; } @@ -207,7 +217,7 @@ hostbased_key_allowed(struct passwd *pw, const char *cuser, char *chost, verbose("Accepted %s public key %s from %s@%s", key_type(key), fp, cuser, lookup); } - xfree(fp); + free(fp); } return (host_status == HOST_OK); diff --git a/auth2-jpake.c b/auth2-jpake.c index a460e821..78a6b881 100644 --- a/auth2-jpake.c +++ b/auth2-jpake.c @@ -1,4 +1,4 @@ -/* $OpenBSD: auth2-jpake.c,v 1.4 2010/08/31 11:54:45 djm Exp $ */ +/* $OpenBSD: auth2-jpake.c,v 1.6 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2008 Damien Miller. All rights reserved. * @@ -179,7 +179,7 @@ derive_rawsalt(const char *username, u_char *rawsalt, u_int len) __func__, len, digest_len); memcpy(rawsalt, digest, len); bzero(digest, digest_len); - xfree(digest); + free(digest); } /* ASCII an integer [0, 64) for inclusion in a password/salt */ @@ -258,7 +258,7 @@ fake_salt_and_scheme(Authctxt *authctxt, char **salt, char **scheme) makesalt(22, authctxt->user)); *scheme = xstrdup("bcrypt"); } - xfree(style); + free(style); debug3("%s: fake %s salt for user %s: %s", __func__, *scheme, authctxt->user, *salt); } @@ -361,7 +361,7 @@ auth2_jpake_get_pwdata(Authctxt *authctxt, BIGNUM **s, JPAKE_DEBUG_BN((*s, "%s: s = ", __func__)); #endif bzero(secret, secret_len); - xfree(secret); + free(secret); } /* @@ -403,12 +403,12 @@ auth2_jpake_start(Authctxt *authctxt) bzero(hash_scheme, strlen(hash_scheme)); bzero(salt, strlen(salt)); - xfree(hash_scheme); - xfree(salt); + free(hash_scheme); + free(salt); bzero(x3_proof, x3_proof_len); bzero(x4_proof, x4_proof_len); - xfree(x3_proof); - xfree(x4_proof); + free(x3_proof); + free(x4_proof); /* Expect step 1 packet from peer */ dispatch_set(SSH2_MSG_USERAUTH_JPAKE_CLIENT_STEP1, @@ -455,8 +455,8 @@ input_userauth_jpake_client_step1(int type, u_int32_t seq, void *ctxt) bzero(x1_proof, x1_proof_len); bzero(x2_proof, x2_proof_len); - xfree(x1_proof); - xfree(x2_proof); + free(x1_proof); + free(x2_proof); if (!use_privsep) JPAKE_DEBUG_CTX((pctx, "step 2 sending in %s", __func__)); @@ -469,7 +469,7 @@ input_userauth_jpake_client_step1(int type, u_int32_t seq, void *ctxt) packet_write_wait(); bzero(x4_s_proof, x4_s_proof_len); - xfree(x4_s_proof); + free(x4_s_proof); /* Expect step 2 packet from peer */ dispatch_set(SSH2_MSG_USERAUTH_JPAKE_CLIENT_STEP2, @@ -510,7 +510,7 @@ input_userauth_jpake_client_step2(int type, u_int32_t seq, void *ctxt) &pctx->h_k_sid_sessid, &pctx->h_k_sid_sessid_len)); bzero(x2_s_proof, x2_s_proof_len); - xfree(x2_s_proof); + free(x2_s_proof); if (!use_privsep) JPAKE_DEBUG_CTX((pctx, "confirm sending in %s", __func__)); @@ -556,7 +556,7 @@ input_userauth_jpake_client_confirm(int type, u_int32_t seq, void *ctxt) authctxt->postponed = 0; jpake_free(authctxt->jpake_ctx); authctxt->jpake_ctx = NULL; - userauth_finish(authctxt, authenticated, method_jpake.name); + userauth_finish(authctxt, authenticated, method_jpake.name, NULL); } #endif /* JPAKE */ diff --git a/auth2-kbdint.c b/auth2-kbdint.c index fae67da6..c39bdc62 100644 --- a/auth2-kbdint.c +++ b/auth2-kbdint.c @@ -1,4 +1,4 @@ -/* $OpenBSD: auth2-kbdint.c,v 1.5 2006/08/03 03:34:41 deraadt Exp $ */ +/* $OpenBSD: auth2-kbdint.c,v 1.6 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * @@ -56,8 +56,8 @@ userauth_kbdint(Authctxt *authctxt) if (options.challenge_response_authentication) authenticated = auth2_challenge(authctxt, devs); - xfree(devs); - xfree(lang); + free(devs); + free(lang); return authenticated; } diff --git a/auth2-passwd.c b/auth2-passwd.c index 5f1f3635..21bc5047 100644 --- a/auth2-passwd.c +++ b/auth2-passwd.c @@ -1,4 +1,4 @@ -/* $OpenBSD: auth2-passwd.c,v 1.9 2006/08/03 03:34:41 deraadt Exp $ */ +/* $OpenBSD: auth2-passwd.c,v 1.10 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * @@ -60,7 +60,7 @@ userauth_passwd(Authctxt *authctxt) /* discard new password from packet */ newpass = packet_get_string(&newlen); memset(newpass, 0, newlen); - xfree(newpass); + free(newpass); } packet_check_eom(); @@ -69,7 +69,7 @@ userauth_passwd(Authctxt *authctxt) else if (PRIVSEP(auth_password(authctxt, password)) == 1) authenticated = 1; memset(password, 0, len); - xfree(password); + free(password); return authenticated; } diff --git a/auth2-pubkey.c b/auth2-pubkey.c index 5bccb5d7..0fd27bb9 100644 --- a/auth2-pubkey.c +++ b/auth2-pubkey.c @@ -1,4 +1,4 @@ -/* $OpenBSD: auth2-pubkey.c,v 1.30 2011/09/25 05:44:47 djm Exp $ */ +/* $OpenBSD: auth2-pubkey.c,v 1.39 2013/12/30 23:52:27 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * @@ -27,9 +27,15 @@ #include <sys/types.h> #include <sys/stat.h> +#include <sys/wait.h> +#include <errno.h> #include <fcntl.h> +#ifdef HAVE_PATHS_H +# include <paths.h> +#endif #include <pwd.h> +#include <signal.h> #include <stdio.h> #include <stdarg.h> #include <string.h> @@ -69,7 +75,7 @@ userauth_pubkey(Authctxt *authctxt) { Buffer b; Key *key = NULL; - char *pkalg; + char *pkalg, *userstyle; u_char *pkblob, *sig; u_int alen, blen, slen; int have_sig, pktype; @@ -110,6 +116,12 @@ userauth_pubkey(Authctxt *authctxt) "(received %d, expected %d)", key->type, pktype); goto done; } + if (key_type_plain(key->type) == KEY_RSA && + (datafellows & SSH_BUG_RSASIGMD5) != 0) { + logit("Refusing RSA key because client uses unsafe " + "signature scheme"); + goto done; + } if (have_sig) { sig = packet_get_string(&slen); packet_check_eom(); @@ -121,7 +133,11 @@ userauth_pubkey(Authctxt *authctxt) } /* reconstruct packet */ buffer_put_char(&b, SSH2_MSG_USERAUTH_REQUEST); - buffer_put_cstring(&b, authctxt->user); + xasprintf(&userstyle, "%s%s%s", authctxt->user, + authctxt->style ? ":" : "", + authctxt->style ? authctxt->style : ""); + buffer_put_cstring(&b, userstyle); + free(userstyle); buffer_put_cstring(&b, datafellows & SSH_BUG_PKSERVICE ? "ssh-userauth" : @@ -137,6 +153,8 @@ userauth_pubkey(Authctxt *authctxt) #ifdef DEBUG_PK buffer_dump(&b); #endif + pubkey_auth_info(authctxt, key, NULL); + /* test for correct signature */ authenticated = 0; if (PRIVSEP(user_key_allowed(authctxt->pw, key)) && @@ -144,7 +162,7 @@ userauth_pubkey(Authctxt *authctxt) buffer_len(&b))) == 1) authenticated = 1; buffer_free(&b); - xfree(sig); + free(sig); } else { debug("test whether pkalg/pkblob are acceptable"); packet_check_eom(); @@ -172,11 +190,45 @@ done: debug2("userauth_pubkey: authenticated %d pkalg %s", authenticated, pkalg); if (key != NULL) key_free(key); - xfree(pkalg); - xfree(pkblob); + free(pkalg); + free(pkblob); return authenticated; } +void +pubkey_auth_info(Authctxt *authctxt, const Key *key, const char *fmt, ...) +{ + char *fp, *extra; + va_list ap; + int i; + + extra = NULL; + if (fmt != NULL) { + va_start(ap, fmt); + i = vasprintf(&extra, fmt, ap); + va_end(ap); + if (i < 0 || extra == NULL) + fatal("%s: vasprintf failed", __func__); + } + + if (key_is_cert(key)) { + fp = key_fingerprint(key->cert->signature_key, + SSH_FP_MD5, SSH_FP_HEX); + auth_info(authctxt, "%s ID %s (serial %llu) CA %s %s%s%s", + key_type(key), key->cert->key_id, + (unsigned long long)key->cert->serial, + key_type(key->cert->signature_key), fp, + extra == NULL ? "" : ", ", extra == NULL ? "" : extra); + free(fp); + } else { + fp = key_fingerprint(key, SSH_FP_MD5, SSH_FP_HEX); + auth_info(authctxt, "%s %s%s%s", key_type(key), fp, + extra == NULL ? "" : ", ", extra == NULL ? "" : extra); + free(fp); + } + free(extra); +} + static int match_principals_option(const char *principal_list, struct KeyCert *cert) { @@ -190,7 +242,7 @@ match_principals_option(const char *principal_list, struct KeyCert *cert) principal_list, NULL)) != NULL) { debug3("matched principal from key options \"%.100s\"", result); - xfree(result); + free(result); return 1; } } @@ -240,7 +292,7 @@ match_principals_file(char *file, struct passwd *pw, struct KeyCert *cert) if (strcmp(cp, cert->principals[i]) == 0) { debug3("matched principal \"%.100s\" " "from file \"%s\" on line %lu", - cert->principals[i], file, linenum); + cert->principals[i], file, linenum); if (auth_parse_options(pw, line_opts, file, linenum) != 1) continue; @@ -253,37 +305,30 @@ match_principals_file(char *file, struct passwd *pw, struct KeyCert *cert) fclose(f); restore_uid(); return 0; -} +} -/* return 1 if user allows given key */ +/* + * Checks whether key is allowed in authorized_keys-format file, + * returns 1 if the key is allowed or 0 otherwise. + */ static int -user_key_allowed2(struct passwd *pw, Key *key, char *file) +check_authkeys_file(FILE *f, char *file, Key* key, struct passwd *pw) { char line[SSH_MAX_PUBKEY_BYTES]; const char *reason; int found_key = 0; - FILE *f; u_long linenum = 0; Key *found; char *fp; - /* Temporarily use the user's uid. */ - temporarily_use_uid(pw); - - debug("trying public key file %s", file); - f = auth_openkeyfile(file, pw, options.strict_modes); - - if (!f) { - restore_uid(); - return 0; - } - found_key = 0; - found = key_new(key_is_cert(key) ? KEY_UNSPEC : key->type); + found = NULL; while (read_keyfile_line(f, file, line, sizeof(line), &linenum) != -1) { char *cp, *key_options = NULL; - + if (found != NULL) + key_free(found); + found = key_new(key_is_cert(key) ? KEY_UNSPEC : key->type); auth_clear_options(); /* Skip leading whitespace, empty and comment lines. */ @@ -335,7 +380,7 @@ user_key_allowed2(struct passwd *pw, Key *key, char *file) reason = "Certificate does not contain an " "authorized principal"; fail_reason: - xfree(fp); + free(fp); error("%s", reason); auth_debug_add("%s", reason); continue; @@ -345,13 +390,13 @@ user_key_allowed2(struct passwd *pw, Key *key, char *file) &reason) != 0) goto fail_reason; if (auth_cert_options(key, pw) != 0) { - xfree(fp); + free(fp); continue; } verbose("Accepted certificate ID \"%s\" " "signed by %s CA %s via %s", key->cert->key_id, key_type(found), fp, file); - xfree(fp); + free(fp); found_key = 1; break; } else if (key_equal(found, key)) { @@ -361,18 +406,15 @@ user_key_allowed2(struct passwd *pw, Key *key, char *file) if (key_is_cert_authority) continue; found_key = 1; - debug("matching key found: file %s, line %lu", - file, linenum); fp = key_fingerprint(found, SSH_FP_MD5, SSH_FP_HEX); - verbose("Found matching %s key: %s", - key_type(found), fp); - xfree(fp); + debug("matching key found: file %s, line %lu %s %s", + file, linenum, key_type(found), fp); + free(fp); break; } } - restore_uid(); - fclose(f); - key_free(found); + if (found != NULL) + key_free(found); if (!found_key) debug2("key not found"); return found_key; @@ -426,14 +468,185 @@ user_cert_trusted_ca(struct passwd *pw, Key *key) ret = 1; out: - if (principals_file != NULL) - xfree(principals_file); - if (ca_fp != NULL) - xfree(ca_fp); + free(principals_file); + free(ca_fp); return ret; } -/* check whether given key is in .ssh/authorized_keys* */ +/* + * Checks whether key is allowed in file. + * returns 1 if the key is allowed or 0 otherwise. + */ +static int +user_key_allowed2(struct passwd *pw, Key *key, char *file) +{ + FILE *f; + int found_key = 0; + + /* Temporarily use the user's uid. */ + temporarily_use_uid(pw); + + debug("trying public key file %s", file); + if ((f = auth_openkeyfile(file, pw, options.strict_modes)) != NULL) { + found_key = check_authkeys_file(f, file, key, pw); + fclose(f); + } + + restore_uid(); + return found_key; +} + +/* + * Checks whether key is allowed in output of command. + * returns 1 if the key is allowed or 0 otherwise. + */ +static int +user_key_command_allowed2(struct passwd *user_pw, Key *key) +{ + FILE *f; + int ok, found_key = 0; + struct passwd *pw; + struct stat st; + int status, devnull, p[2], i; + pid_t pid; + char *username, errmsg[512]; + + if (options.authorized_keys_command == NULL || + options.authorized_keys_command[0] != '/') + return 0; + + if (options.authorized_keys_command_user == NULL) { + error("No user for AuthorizedKeysCommand specified, skipping"); + return 0; + } + + username = percent_expand(options.authorized_keys_command_user, + "u", user_pw->pw_name, (char *)NULL); + pw = getpwnam(username); + if (pw == NULL) { + error("AuthorizedKeysCommandUser \"%s\" not found: %s", + username, strerror(errno)); + free(username); + return 0; + } + free(username); + + temporarily_use_uid(pw); + + if (stat(options.authorized_keys_command, &st) < 0) { + error("Could not stat AuthorizedKeysCommand \"%s\": %s", + options.authorized_keys_command, strerror(errno)); + goto out; + } + if (auth_secure_path(options.authorized_keys_command, &st, NULL, 0, + errmsg, sizeof(errmsg)) != 0) { + error("Unsafe AuthorizedKeysCommand: %s", errmsg); + goto out; + } + + if (pipe(p) != 0) { + error("%s: pipe: %s", __func__, strerror(errno)); + goto out; + } + + debug3("Running AuthorizedKeysCommand: \"%s %s\" as \"%s\"", + options.authorized_keys_command, user_pw->pw_name, pw->pw_name); + + /* + * Don't want to call this in the child, where it can fatal() and + * run cleanup_exit() code. + */ + restore_uid(); + + switch ((pid = fork())) { + case -1: /* error */ + error("%s: fork: %s", __func__, strerror(errno)); + close(p[0]); + close(p[1]); + return 0; + case 0: /* child */ + for (i = 0; i < NSIG; i++) + signal(i, SIG_DFL); + + if ((devnull = open(_PATH_DEVNULL, O_RDWR)) == -1) { + error("%s: open %s: %s", __func__, _PATH_DEVNULL, + strerror(errno)); + _exit(1); + } + /* Keep stderr around a while longer to catch errors */ + if (dup2(devnull, STDIN_FILENO) == -1 || + dup2(p[1], STDOUT_FILENO) == -1) { + error("%s: dup2: %s", __func__, strerror(errno)); + _exit(1); + } + closefrom(STDERR_FILENO + 1); + + /* Don't use permanently_set_uid() here to avoid fatal() */ + if (setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) != 0) { + error("setresgid %u: %s", (u_int)pw->pw_gid, + strerror(errno)); + _exit(1); + } + if (setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid) != 0) { + error("setresuid %u: %s", (u_int)pw->pw_uid, + strerror(errno)); + _exit(1); + } + /* stdin is pointed to /dev/null at this point */ + if (dup2(STDIN_FILENO, STDERR_FILENO) == -1) { + error("%s: dup2: %s", __func__, strerror(errno)); + _exit(1); + } + + execl(options.authorized_keys_command, + options.authorized_keys_command, user_pw->pw_name, NULL); + + error("AuthorizedKeysCommand %s exec failed: %s", + options.authorized_keys_command, strerror(errno)); + _exit(127); + default: /* parent */ + break; + } + + temporarily_use_uid(pw); + + close(p[1]); + if ((f = fdopen(p[0], "r")) == NULL) { + error("%s: fdopen: %s", __func__, strerror(errno)); + close(p[0]); + /* Don't leave zombie child */ + kill(pid, SIGTERM); + while (waitpid(pid, NULL, 0) == -1 && errno == EINTR) + ; + goto out; + } + ok = check_authkeys_file(f, options.authorized_keys_command, key, pw); + fclose(f); + + while (waitpid(pid, &status, 0) == -1) { + if (errno != EINTR) { + error("%s: waitpid: %s", __func__, strerror(errno)); + goto out; + } + } + if (WIFSIGNALED(status)) { + error("AuthorizedKeysCommand %s exited on signal %d", + options.authorized_keys_command, WTERMSIG(status)); + goto out; + } else if (WEXITSTATUS(status) != 0) { + error("AuthorizedKeysCommand %s returned status %d", + options.authorized_keys_command, WEXITSTATUS(status)); + goto out; + } + found_key = ok; + out: + restore_uid(); + return found_key; +} + +/* + * Check whether key authenticates and authorises the user. + */ int user_key_allowed(struct passwd *pw, Key *key) { @@ -449,11 +662,19 @@ user_key_allowed(struct passwd *pw, Key *key) if (success) return success; + success = user_key_command_allowed2(pw, key); + if (success > 0) + return success; + for (i = 0; !success && i < options.num_authkeys_files; i++) { + + if (strcasecmp(options.authorized_keys_files[i], "none") == 0) + continue; file = expand_authorized_keys( options.authorized_keys_files[i], pw); + success = user_key_allowed2(pw, key, file); - xfree(file); + free(file); } return success; @@ -1,4 +1,4 @@ -/* $OpenBSD: auth2.c,v 1.124 2011/12/07 05:44:38 djm Exp $ */ +/* $OpenBSD: auth2.c,v 1.129 2013/05/19 02:42:42 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * @@ -96,8 +96,14 @@ static void input_service_request(int, u_int32_t, void *); static void input_userauth_request(int, u_int32_t, void *); /* helper */ -static Authmethod *authmethod_lookup(const char *); -static char *authmethods_get(void); +static Authmethod *authmethod_lookup(Authctxt *, const char *); +static char *authmethods_get(Authctxt *authctxt); + +#define MATCH_NONE 0 /* method or submethod mismatch */ +#define MATCH_METHOD 1 /* method matches (no submethod specified) */ +#define MATCH_BOTH 2 /* method and submethod match */ +#define MATCH_PARTIAL 3 /* method matches, submethod can't be checked */ +static int list_starts_with(const char *, const char *, const char *); char * auth2_read_banner(void) @@ -124,7 +130,7 @@ auth2_read_banner(void) close(fd); if (n != len) { - xfree(banner); + free(banner); return (NULL); } banner[n] = '\0'; @@ -160,8 +166,7 @@ userauth_banner(void) userauth_send_banner(banner); done: - if (banner) - xfree(banner); + free(banner); } /* @@ -206,7 +211,7 @@ input_service_request(int type, u_int32_t seq, void *ctxt) debug("bad service request %s", service); packet_disconnect("bad service request %s", service); } - xfree(service); + free(service); } /*ARGSUSED*/ @@ -255,6 +260,8 @@ input_userauth_request(int type, u_int32_t seq, void *ctxt) if (use_privsep) mm_inform_authserv(service, style); userauth_banner(); + if (auth2_setup_methods_lists(authctxt) != 0) + packet_disconnect("no authentication methods enabled"); } else if (strcmp(user, authctxt->user) != 0 || strcmp(service, authctxt->service) != 0) { packet_disconnect("Change of username or service not allowed: " @@ -277,26 +284,30 @@ input_userauth_request(int type, u_int32_t seq, void *ctxt) authctxt->server_caused_failure = 0; /* try to authenticate user */ - m = authmethod_lookup(method); + m = authmethod_lookup(authctxt, method); if (m != NULL && authctxt->failures < options.max_authtries) { debug2("input_userauth_request: try method %s", method); authenticated = m->userauth(authctxt); } - userauth_finish(authctxt, authenticated, method); + userauth_finish(authctxt, authenticated, method, NULL); - xfree(service); - xfree(user); - xfree(method); + free(service); + free(user); + free(method); } void -userauth_finish(Authctxt *authctxt, int authenticated, char *method) +userauth_finish(Authctxt *authctxt, int authenticated, const char *method, + const char *submethod) { char *methods; + int partial = 0; if (!authctxt->valid && authenticated) fatal("INTERNAL ERROR: authenticated invalid user %s", authctxt->user); + if (authenticated && authctxt->postponed) + fatal("INTERNAL ERROR: authenticated and postponed"); /* Special handling for root */ if (authenticated && authctxt->pw->pw_uid == 0 && @@ -307,6 +318,19 @@ userauth_finish(Authctxt *authctxt, int authenticated, char *method) #endif } + if (authenticated && options.num_auth_methods != 0) { + if (!auth2_update_methods_lists(authctxt, method, submethod)) { + authenticated = 0; + partial = 1; + } + } + + /* Log before sending the reply */ + auth_log(authctxt, authenticated, partial, method, submethod); + + if (authctxt->postponed) + return; + #ifdef USE_PAM if (options.use_pam && authenticated) { if (!PRIVSEP(do_pam_account())) { @@ -325,17 +349,10 @@ userauth_finish(Authctxt *authctxt, int authenticated, char *method) #ifdef _UNICOS if (authenticated && cray_access_denied(authctxt->user)) { authenticated = 0; - fatal("Access denied for user %s.",authctxt->user); + fatal("Access denied for user %s.", authctxt->user); } #endif /* _UNICOS */ - /* Log before sending the reply */ - auth_log(authctxt, authenticated, method, " ssh2"); - - if (authctxt->postponed) - return; - - /* XXX todo: check if multiple auth methods are needed */ if (authenticated == 1) { /* turn off userauth */ dispatch_set(SSH2_MSG_USERAUTH_REQUEST, &dispatch_protocol_ignore); @@ -356,34 +373,64 @@ userauth_finish(Authctxt *authctxt, int authenticated, char *method) #endif packet_disconnect(AUTH_FAIL_MSG, authctxt->user); } - methods = authmethods_get(); + methods = authmethods_get(authctxt); + debug3("%s: failure partial=%d next methods=\"%s\"", __func__, + partial, methods); packet_start(SSH2_MSG_USERAUTH_FAILURE); packet_put_cstring(methods); - packet_put_char(0); /* XXX partial success, unused */ + packet_put_char(partial); packet_send(); packet_write_wait(); - xfree(methods); + free(methods); + } +} + +/* + * Checks whether method is allowed by at least one AuthenticationMethods + * methods list. Returns 1 if allowed, or no methods lists configured. + * 0 otherwise. + */ +int +auth2_method_allowed(Authctxt *authctxt, const char *method, + const char *submethod) +{ + u_int i; + + /* + * NB. authctxt->num_auth_methods might be zero as a result of + * auth2_setup_methods_lists(), so check the configuration. + */ + if (options.num_auth_methods == 0) + return 1; + for (i = 0; i < authctxt->num_auth_methods; i++) { + if (list_starts_with(authctxt->auth_methods[i], method, + submethod) != MATCH_NONE) + return 1; } + return 0; } static char * -authmethods_get(void) +authmethods_get(Authctxt *authctxt) { Buffer b; char *list; - int i; + u_int i; buffer_init(&b); for (i = 0; authmethods[i] != NULL; i++) { if (strcmp(authmethods[i]->name, "none") == 0) continue; - if (authmethods[i]->enabled != NULL && - *(authmethods[i]->enabled) != 0) { - if (buffer_len(&b) > 0) - buffer_append(&b, ",", 1); - buffer_append(&b, authmethods[i]->name, - strlen(authmethods[i]->name)); - } + if (authmethods[i]->enabled == NULL || + *(authmethods[i]->enabled) == 0) + continue; + if (!auth2_method_allowed(authctxt, authmethods[i]->name, + NULL)) + continue; + if (buffer_len(&b) > 0) + buffer_append(&b, ",", 1); + buffer_append(&b, authmethods[i]->name, + strlen(authmethods[i]->name)); } buffer_append(&b, "\0", 1); list = xstrdup(buffer_ptr(&b)); @@ -392,7 +439,7 @@ authmethods_get(void) } static Authmethod * -authmethod_lookup(const char *name) +authmethod_lookup(Authctxt *authctxt, const char *name) { int i; @@ -400,10 +447,181 @@ authmethod_lookup(const char *name) for (i = 0; authmethods[i] != NULL; i++) if (authmethods[i]->enabled != NULL && *(authmethods[i]->enabled) != 0 && - strcmp(name, authmethods[i]->name) == 0) + strcmp(name, authmethods[i]->name) == 0 && + auth2_method_allowed(authctxt, + authmethods[i]->name, NULL)) return authmethods[i]; debug2("Unrecognized authentication method name: %s", name ? name : "NULL"); return NULL; } +/* + * Check a comma-separated list of methods for validity. Is need_enable is + * non-zero, then also require that the methods are enabled. + * Returns 0 on success or -1 if the methods list is invalid. + */ +int +auth2_methods_valid(const char *_methods, int need_enable) +{ + char *methods, *omethods, *method, *p; + u_int i, found; + int ret = -1; + + if (*_methods == '\0') { + error("empty authentication method list"); + return -1; + } + omethods = methods = xstrdup(_methods); + while ((method = strsep(&methods, ",")) != NULL) { + for (found = i = 0; !found && authmethods[i] != NULL; i++) { + if ((p = strchr(method, ':')) != NULL) + *p = '\0'; + if (strcmp(method, authmethods[i]->name) != 0) + continue; + if (need_enable) { + if (authmethods[i]->enabled == NULL || + *(authmethods[i]->enabled) == 0) { + error("Disabled method \"%s\" in " + "AuthenticationMethods list \"%s\"", + method, _methods); + goto out; + } + } + found = 1; + break; + } + if (!found) { + error("Unknown authentication method \"%s\" in list", + method); + goto out; + } + } + ret = 0; + out: + free(omethods); + return ret; +} + +/* + * Prune the AuthenticationMethods supplied in the configuration, removing + * any methods lists that include disabled methods. Note that this might + * leave authctxt->num_auth_methods == 0, even when multiple required auth + * has been requested. For this reason, all tests for whether multiple is + * enabled should consult options.num_auth_methods directly. + */ +int +auth2_setup_methods_lists(Authctxt *authctxt) +{ + u_int i; + + if (options.num_auth_methods == 0) + return 0; + debug3("%s: checking methods", __func__); + authctxt->auth_methods = xcalloc(options.num_auth_methods, + sizeof(*authctxt->auth_methods)); + authctxt->num_auth_methods = 0; + for (i = 0; i < options.num_auth_methods; i++) { + if (auth2_methods_valid(options.auth_methods[i], 1) != 0) { + logit("Authentication methods list \"%s\" contains " + "disabled method, skipping", + options.auth_methods[i]); + continue; + } + debug("authentication methods list %d: %s", + authctxt->num_auth_methods, options.auth_methods[i]); + authctxt->auth_methods[authctxt->num_auth_methods++] = + xstrdup(options.auth_methods[i]); + } + if (authctxt->num_auth_methods == 0) { + error("No AuthenticationMethods left after eliminating " + "disabled methods"); + return -1; + } + return 0; +} + +static int +list_starts_with(const char *methods, const char *method, + const char *submethod) +{ + size_t l = strlen(method); + int match; + const char *p; + + if (strncmp(methods, method, l) != 0) + return MATCH_NONE; + p = methods + l; + match = MATCH_METHOD; + if (*p == ':') { + if (!submethod) + return MATCH_PARTIAL; + l = strlen(submethod); + p += 1; + if (strncmp(submethod, p, l)) + return MATCH_NONE; + p += l; + match = MATCH_BOTH; + } + if (*p != ',' && *p != '\0') + return MATCH_NONE; + return match; +} + +/* + * Remove method from the start of a comma-separated list of methods. + * Returns 0 if the list of methods did not start with that method or 1 + * if it did. + */ +static int +remove_method(char **methods, const char *method, const char *submethod) +{ + char *omethods = *methods, *p; + size_t l = strlen(method); + int match; + + match = list_starts_with(omethods, method, submethod); + if (match != MATCH_METHOD && match != MATCH_BOTH) + return 0; + p = omethods + l; + if (submethod && match == MATCH_BOTH) + p += 1 + strlen(submethod); /* include colon */ + if (*p == ',') + p++; + *methods = xstrdup(p); + free(omethods); + return 1; +} + +/* + * Called after successful authentication. Will remove the successful method + * from the start of each list in which it occurs. If it was the last method + * in any list, then authentication is deemed successful. + * Returns 1 if the method completed any authentication list or 0 otherwise. + */ +int +auth2_update_methods_lists(Authctxt *authctxt, const char *method, + const char *submethod) +{ + u_int i, found = 0; + + debug3("%s: updating methods list after \"%s\"", __func__, method); + for (i = 0; i < authctxt->num_auth_methods; i++) { + if (!remove_method(&(authctxt->auth_methods[i]), method, + submethod)) + continue; + found = 1; + if (*authctxt->auth_methods[i] == '\0') { + debug2("authentication methods list %d complete", i); + return 1; + } + debug3("authentication methods list %d remaining: \"%s\"", + i, authctxt->auth_methods[i]); + } + /* This should not happen, but would be bad if it did */ + if (!found) + fatal("%s: method not in AuthenticationMethods", __func__); + return 0; +} + + @@ -1,4 +1,4 @@ -/* $OpenBSD: authfd.c,v 1.86 2011/07/06 18:09:21 tedu Exp $ */ +/* $OpenBSD: authfd.c,v 1.91 2013/12/29 04:29:25 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -42,8 +42,8 @@ #include <sys/socket.h> #include <openssl/evp.h> - #include <openssl/crypto.h> + #include <fcntl.h> #include <stdlib.h> #include <signal.h> @@ -206,7 +206,7 @@ ssh_get_authentication_connection(void) if (sock < 0) return NULL; - auth = xmalloc(sizeof(*auth)); + auth = xcalloc(1, sizeof(*auth)); auth->fd = sock; buffer_init(&auth->identities); auth->howmany = 0; @@ -224,7 +224,7 @@ ssh_close_authentication_connection(AuthenticationConnection *auth) { buffer_free(&auth->identities); close(auth->fd); - xfree(auth); + free(auth); } /* Lock/unlock agent */ @@ -343,7 +343,7 @@ ssh_get_next_identity(AuthenticationConnection *auth, char **comment, int versio blob = buffer_get_string(&auth->identities, &blen); *comment = buffer_get_string(&auth->identities, NULL); key = key_from_blob(blob, blen); - xfree(blob); + free(blob); break; default: return NULL; @@ -436,7 +436,7 @@ ssh_agent_sign(AuthenticationConnection *auth, buffer_put_string(&msg, blob, blen); buffer_put_string(&msg, data, datalen); buffer_put_int(&msg, flags); - xfree(blob); + free(blob); if (ssh_request_reply(auth, &msg, &msg) == 0) { buffer_free(&msg); @@ -474,58 +474,7 @@ ssh_encode_identity_rsa1(Buffer *b, RSA *key, const char *comment) static void ssh_encode_identity_ssh2(Buffer *b, Key *key, const char *comment) { - buffer_put_cstring(b, key_ssh_name(key)); - switch (key->type) { - case KEY_RSA: - buffer_put_bignum2(b, key->rsa->n); - buffer_put_bignum2(b, key->rsa->e); - buffer_put_bignum2(b, key->rsa->d); - buffer_put_bignum2(b, key->rsa->iqmp); - buffer_put_bignum2(b, key->rsa->p); - buffer_put_bignum2(b, key->rsa->q); - break; - case KEY_RSA_CERT_V00: - case KEY_RSA_CERT: - if (key->cert == NULL || buffer_len(&key->cert->certblob) == 0) - fatal("%s: no cert/certblob", __func__); - buffer_put_string(b, buffer_ptr(&key->cert->certblob), - buffer_len(&key->cert->certblob)); - buffer_put_bignum2(b, key->rsa->d); - buffer_put_bignum2(b, key->rsa->iqmp); - buffer_put_bignum2(b, key->rsa->p); - buffer_put_bignum2(b, key->rsa->q); - break; - case KEY_DSA: - buffer_put_bignum2(b, key->dsa->p); - buffer_put_bignum2(b, key->dsa->q); - buffer_put_bignum2(b, key->dsa->g); - buffer_put_bignum2(b, key->dsa->pub_key); - buffer_put_bignum2(b, key->dsa->priv_key); - break; - case KEY_DSA_CERT_V00: - case KEY_DSA_CERT: - if (key->cert == NULL || buffer_len(&key->cert->certblob) == 0) - fatal("%s: no cert/certblob", __func__); - buffer_put_string(b, buffer_ptr(&key->cert->certblob), - buffer_len(&key->cert->certblob)); - buffer_put_bignum2(b, key->dsa->priv_key); - break; -#ifdef OPENSSL_HAS_ECC - case KEY_ECDSA: - buffer_put_cstring(b, key_curve_nid_to_name(key->ecdsa_nid)); - buffer_put_ecpoint(b, EC_KEY_get0_group(key->ecdsa), - EC_KEY_get0_public_key(key->ecdsa)); - buffer_put_bignum2(b, EC_KEY_get0_private_key(key->ecdsa)); - break; - case KEY_ECDSA_CERT: - if (key->cert == NULL || buffer_len(&key->cert->certblob) == 0) - fatal("%s: no cert/certblob", __func__); - buffer_put_string(b, buffer_ptr(&key->cert->certblob), - buffer_len(&key->cert->certblob)); - buffer_put_bignum2(b, EC_KEY_get0_private_key(key->ecdsa)); - break; -#endif - } + key_private_serialize(key, b); buffer_put_cstring(b, comment); } @@ -559,6 +508,8 @@ ssh_add_identity_constrained(AuthenticationConnection *auth, Key *key, case KEY_DSA_CERT_V00: case KEY_ECDSA: case KEY_ECDSA_CERT: + case KEY_ED25519: + case KEY_ED25519_CERT: type = constrained ? SSH2_AGENTC_ADD_ID_CONSTRAINED : SSH2_AGENTC_ADD_IDENTITY; @@ -606,13 +557,11 @@ ssh_remove_identity(AuthenticationConnection *auth, Key *key) buffer_put_int(&msg, BN_num_bits(key->rsa->n)); buffer_put_bignum(&msg, key->rsa->e); buffer_put_bignum(&msg, key->rsa->n); - } else if (key_type_plain(key->type) == KEY_DSA || - key_type_plain(key->type) == KEY_RSA || - key_type_plain(key->type) == KEY_ECDSA) { + } else if (key->type != KEY_UNSPEC) { key_to_blob(key, &blob, &blen); buffer_put_char(&msg, SSH2_AGENTC_REMOVE_IDENTITY); buffer_put_string(&msg, blob, blen); - xfree(blob); + free(blob); } else { buffer_free(&msg); return 0; @@ -1,4 +1,4 @@ -/* $OpenBSD: authfile.c,v 1.93 2012/01/25 19:36:31 markus Exp $ */ +/* $OpenBSD: authfile.c,v 1.101 2013/12/29 04:35:50 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -13,7 +13,7 @@ * called by a name other than "ssh" or "Secure Shell". * * - * Copyright (c) 2000 Markus Friedl. All rights reserved. + * Copyright (c) 2000, 2013 Markus Friedl. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -50,6 +50,8 @@ /* compatibility with old or broken OpenSSL versions */ #include "openbsd-compat/openssl-compat.h" +#include "crypto_api.h" + #include <errno.h> #include <fcntl.h> #include <stdarg.h> @@ -58,6 +60,10 @@ #include <string.h> #include <unistd.h> +#ifdef HAVE_UTIL_H +#include <util.h> +#endif + #include "xmalloc.h" #include "cipher.h" #include "buffer.h" @@ -68,6 +74,16 @@ #include "rsa.h" #include "misc.h" #include "atomicio.h" +#include "uuencode.h" + +/* openssh private key file format */ +#define MARK_BEGIN "-----BEGIN OPENSSH PRIVATE KEY-----\n" +#define MARK_END "-----END OPENSSH PRIVATE KEY-----\n" +#define KDFNAME "bcrypt" +#define AUTH_MAGIC "openssh-key-v1" +#define SALT_LEN 16 +#define DEFAULT_CIPHERNAME "aes256-cbc" +#define DEFAULT_ROUNDS 16 #define MAX_KEY_FILE_SIZE (1024 * 1024) @@ -75,6 +91,333 @@ static const char authfile_id_string[] = "SSH PRIVATE KEY FILE FORMAT 1.1\n"; +static int +key_private_to_blob2(Key *prv, Buffer *blob, const char *passphrase, + const char *comment, const char *ciphername, int rounds) +{ + u_char *key, *cp, salt[SALT_LEN]; + size_t keylen, ivlen, blocksize, authlen; + u_int len, check; + int i, n; + const Cipher *c; + Buffer encoded, b, kdf; + CipherContext ctx; + const char *kdfname = KDFNAME; + + if (rounds <= 0) + rounds = DEFAULT_ROUNDS; + if (passphrase == NULL || !strlen(passphrase)) { + ciphername = "none"; + kdfname = "none"; + } else if (ciphername == NULL) + ciphername = DEFAULT_CIPHERNAME; + else if (cipher_number(ciphername) != SSH_CIPHER_SSH2) + fatal("invalid cipher"); + + if ((c = cipher_by_name(ciphername)) == NULL) + fatal("unknown cipher name"); + buffer_init(&kdf); + blocksize = cipher_blocksize(c); + keylen = cipher_keylen(c); + ivlen = cipher_ivlen(c); + authlen = cipher_authlen(c); + key = xcalloc(1, keylen + ivlen); + if (strcmp(kdfname, "none") != 0) { + arc4random_buf(salt, SALT_LEN); + if (bcrypt_pbkdf(passphrase, strlen(passphrase), + salt, SALT_LEN, key, keylen + ivlen, rounds) < 0) + fatal("bcrypt_pbkdf failed"); + buffer_put_string(&kdf, salt, SALT_LEN); + buffer_put_int(&kdf, rounds); + } + cipher_init(&ctx, c, key, keylen, key + keylen , ivlen, 1); + memset(key, 0, keylen + ivlen); + free(key); + + buffer_init(&encoded); + buffer_append(&encoded, AUTH_MAGIC, sizeof(AUTH_MAGIC)); + buffer_put_cstring(&encoded, ciphername); + buffer_put_cstring(&encoded, kdfname); + buffer_put_string(&encoded, buffer_ptr(&kdf), buffer_len(&kdf)); + buffer_put_int(&encoded, 1); /* number of keys */ + key_to_blob(prv, &cp, &len); /* public key */ + buffer_put_string(&encoded, cp, len); + + memset(cp, 0, len); + free(cp); + + buffer_free(&kdf); + + /* set up the buffer that will be encrypted */ + buffer_init(&b); + + /* Random check bytes */ + check = arc4random(); + buffer_put_int(&b, check); + buffer_put_int(&b, check); + + /* append private key and comment*/ + key_private_serialize(prv, &b); + buffer_put_cstring(&b, comment); + + /* padding */ + i = 0; + while (buffer_len(&b) % blocksize) + buffer_put_char(&b, ++i & 0xff); + + /* length */ + buffer_put_int(&encoded, buffer_len(&b)); + + /* encrypt */ + cp = buffer_append_space(&encoded, buffer_len(&b) + authlen); + if (cipher_crypt(&ctx, 0, cp, buffer_ptr(&b), buffer_len(&b), 0, + authlen) != 0) + fatal("%s: cipher_crypt failed", __func__); + buffer_free(&b); + cipher_cleanup(&ctx); + + /* uuencode */ + len = 2 * buffer_len(&encoded); + cp = xmalloc(len); + n = uuencode(buffer_ptr(&encoded), buffer_len(&encoded), + (char *)cp, len); + if (n < 0) + fatal("%s: uuencode", __func__); + + buffer_clear(blob); + buffer_append(blob, MARK_BEGIN, sizeof(MARK_BEGIN) - 1); + for (i = 0; i < n; i++) { + buffer_put_char(blob, cp[i]); + if (i % 70 == 69) + buffer_put_char(blob, '\n'); + } + if (i % 70 != 69) + buffer_put_char(blob, '\n'); + buffer_append(blob, MARK_END, sizeof(MARK_END) - 1); + free(cp); + + return buffer_len(blob); +} + +static Key * +key_parse_private2(Buffer *blob, int type, const char *passphrase, + char **commentp) +{ + u_char *key = NULL, *cp, *salt = NULL, pad, last; + char *comment = NULL, *ciphername = NULL, *kdfname = NULL, *kdfp; + u_int keylen = 0, ivlen, blocksize, slen, klen, len, rounds, nkeys; + u_int check1, check2, m1len, m2len; + size_t authlen; + const Cipher *c; + Buffer b, encoded, copy, kdf; + CipherContext ctx; + Key *k = NULL; + int dlen, ret, i; + + buffer_init(&b); + buffer_init(&kdf); + buffer_init(&encoded); + buffer_init(©); + + /* uudecode */ + m1len = sizeof(MARK_BEGIN) - 1; + m2len = sizeof(MARK_END) - 1; + cp = buffer_ptr(blob); + len = buffer_len(blob); + if (len < m1len || memcmp(cp, MARK_BEGIN, m1len)) { + debug("%s: missing begin marker", __func__); + goto out; + } + cp += m1len; + len -= m1len; + while (len) { + if (*cp != '\n' && *cp != '\r') + buffer_put_char(&encoded, *cp); + last = *cp; + len--; + cp++; + if (last == '\n') { + if (len >= m2len && !memcmp(cp, MARK_END, m2len)) { + buffer_put_char(&encoded, '\0'); + break; + } + } + } + if (!len) { + debug("%s: no end marker", __func__); + goto out; + } + len = buffer_len(&encoded); + if ((cp = buffer_append_space(©, len)) == NULL) { + error("%s: buffer_append_space", __func__); + goto out; + } + if ((dlen = uudecode(buffer_ptr(&encoded), cp, len)) < 0) { + error("%s: uudecode failed", __func__); + goto out; + } + if ((u_int)dlen > len) { + error("%s: crazy uudecode length %d > %u", __func__, dlen, len); + goto out; + } + buffer_consume_end(©, len - dlen); + if (buffer_len(©) < sizeof(AUTH_MAGIC) || + memcmp(buffer_ptr(©), AUTH_MAGIC, sizeof(AUTH_MAGIC))) { + error("%s: bad magic", __func__); + goto out; + } + buffer_consume(©, sizeof(AUTH_MAGIC)); + + ciphername = buffer_get_cstring_ret(©, NULL); + if (ciphername == NULL || + (c = cipher_by_name(ciphername)) == NULL) { + error("%s: unknown cipher name", __func__); + goto out; + } + if ((passphrase == NULL || !strlen(passphrase)) && + strcmp(ciphername, "none") != 0) { + /* passphrase required */ + goto out; + } + kdfname = buffer_get_cstring_ret(©, NULL); + if (kdfname == NULL || + (!strcmp(kdfname, "none") && !strcmp(kdfname, "bcrypt"))) { + error("%s: unknown kdf name", __func__); + goto out; + } + if (!strcmp(kdfname, "none") && strcmp(ciphername, "none") != 0) { + error("%s: cipher %s requires kdf", __func__, ciphername); + goto out; + } + /* kdf options */ + kdfp = buffer_get_string_ptr_ret(©, &klen); + if (kdfp == NULL) { + error("%s: kdf options not set", __func__); + goto out; + } + if (klen > 0) { + if ((cp = buffer_append_space(&kdf, klen)) == NULL) { + error("%s: kdf alloc failed", __func__); + goto out; + } + memcpy(cp, kdfp, klen); + } + /* number of keys */ + if (buffer_get_int_ret(&nkeys, ©) < 0) { + error("%s: key counter missing", __func__); + goto out; + } + if (nkeys != 1) { + error("%s: only one key supported", __func__); + goto out; + } + /* pubkey */ + if ((cp = buffer_get_string_ret(©, &len)) == NULL) { + error("%s: pubkey not found", __func__); + goto out; + } + free(cp); /* XXX check pubkey against decrypted private key */ + + /* size of encrypted key blob */ + len = buffer_get_int(©); + blocksize = cipher_blocksize(c); + authlen = cipher_authlen(c); + if (len < blocksize) { + error("%s: encrypted data too small", __func__); + goto out; + } + if (len % blocksize) { + error("%s: length not multiple of blocksize", __func__); + goto out; + } + + /* setup key */ + keylen = cipher_keylen(c); + ivlen = cipher_ivlen(c); + key = xcalloc(1, keylen + ivlen); + if (!strcmp(kdfname, "bcrypt")) { + if ((salt = buffer_get_string_ret(&kdf, &slen)) == NULL) { + error("%s: salt not set", __func__); + goto out; + } + if (buffer_get_int_ret(&rounds, &kdf) < 0) { + error("%s: rounds not set", __func__); + goto out; + } + if (bcrypt_pbkdf(passphrase, strlen(passphrase), salt, slen, + key, keylen + ivlen, rounds) < 0) { + error("%s: bcrypt_pbkdf failed", __func__); + goto out; + } + } + + cp = buffer_append_space(&b, len); + cipher_init(&ctx, c, key, keylen, key + keylen, ivlen, 0); + ret = cipher_crypt(&ctx, 0, cp, buffer_ptr(©), len, 0, authlen); + cipher_cleanup(&ctx); + buffer_consume(©, len); + + /* fail silently on decryption errors */ + if (ret != 0) { + debug("%s: decrypt failed", __func__); + goto out; + } + + if (buffer_len(©) != 0) { + error("%s: key blob has trailing data (len = %u)", __func__, + buffer_len(©)); + goto out; + } + + /* check bytes */ + if (buffer_get_int_ret(&check1, &b) < 0 || + buffer_get_int_ret(&check2, &b) < 0) { + error("check bytes missing"); + goto out; + } + if (check1 != check2) { + debug("%s: decrypt failed: 0x%08x != 0x%08x", __func__, + check1, check2); + goto out; + } + + k = key_private_deserialize(&b); + + /* comment */ + comment = buffer_get_cstring_ret(&b, NULL); + + i = 0; + while (buffer_len(&b)) { + if (buffer_get_char_ret(&pad, &b) == -1 || + pad != (++i & 0xff)) { + error("%s: bad padding", __func__); + key_free(k); + k = NULL; + goto out; + } + } + + if (k && commentp) { + *commentp = comment; + comment = NULL; + } + + /* XXX decode pubkey and check against private */ + out: + free(ciphername); + free(kdfname); + free(salt); + free(comment); + if (key) + memset(key, 0, keylen + ivlen); + free(key); + buffer_free(&encoded); + buffer_free(©); + buffer_free(&kdf); + buffer_free(&b); + return k; +} + /* * Serialises the authentication (private) key to a blob, encrypting it with * passphrase. The identification of the blob (lowest 64 bits of n) will @@ -89,7 +432,7 @@ key_private_rsa1_to_blob(Key *key, Buffer *blob, const char *passphrase, u_char buf[100], *cp; int i, cipher_num; CipherContext ciphercontext; - Cipher *cipher; + const Cipher *cipher; u_int32_t rnd; /* @@ -149,8 +492,9 @@ key_private_rsa1_to_blob(Key *key, Buffer *blob, const char *passphrase, cipher_set_key_string(&ciphercontext, cipher, passphrase, CIPHER_ENCRYPT); - cipher_crypt(&ciphercontext, cp, - buffer_ptr(&buffer), buffer_len(&buffer)); + if (cipher_crypt(&ciphercontext, 0, cp, + buffer_ptr(&buffer), buffer_len(&buffer), 0, 0) != 0) + fatal("%s: cipher_crypt failed", __func__); cipher_cleanup(&ciphercontext); memset(&ciphercontext, 0, sizeof(ciphercontext)); @@ -239,7 +583,8 @@ key_save_private_blob(Buffer *keybuf, const char *filename) /* Serialise "key" to buffer "blob" */ static int key_private_to_blob(Key *key, Buffer *blob, const char *passphrase, - const char *comment) + const char *comment, int force_new_format, const char *new_format_cipher, + int new_format_rounds) { switch (key->type) { case KEY_RSA1: @@ -247,7 +592,14 @@ key_private_to_blob(Key *key, Buffer *blob, const char *passphrase, case KEY_DSA: case KEY_ECDSA: case KEY_RSA: + if (force_new_format) { + return key_private_to_blob2(key, blob, passphrase, + comment, new_format_cipher, new_format_rounds); + } return key_private_pem_to_blob(key, blob, passphrase, comment); + case KEY_ED25519: + return key_private_to_blob2(key, blob, passphrase, + comment, new_format_cipher, new_format_rounds); default: error("%s: cannot save key type %d", __func__, key->type); return 0; @@ -256,13 +608,15 @@ key_private_to_blob(Key *key, Buffer *blob, const char *passphrase, int key_save_private(Key *key, const char *filename, const char *passphrase, - const char *comment) + const char *comment, int force_new_format, const char *new_format_cipher, + int new_format_rounds) { Buffer keyblob; int success = 0; buffer_init(&keyblob); - if (!key_private_to_blob(key, &keyblob, passphrase, comment)) + if (!key_private_to_blob(key, &keyblob, passphrase, comment, + force_new_format, new_format_cipher, new_format_rounds)) goto out; if (!key_save_private_blob(&keyblob, filename)) goto out; @@ -421,7 +775,7 @@ key_parse_private_rsa1(Buffer *blob, const char *passphrase, char **commentp) Buffer decrypted; u_char *cp; CipherContext ciphercontext; - Cipher *cipher; + const Cipher *cipher; Key *prv = NULL; Buffer copy; @@ -473,8 +827,9 @@ key_parse_private_rsa1(Buffer *blob, const char *passphrase, char **commentp) /* Rest of the buffer is encrypted. Decrypt it using the passphrase. */ cipher_set_key_string(&ciphercontext, cipher, passphrase, CIPHER_DECRYPT); - cipher_crypt(&ciphercontext, cp, - buffer_ptr(©), buffer_len(©)); + if (cipher_crypt(&ciphercontext, 0, cp, + buffer_ptr(©), buffer_len(©), 0, 0) != 0) + fatal("%s: cipher_crypt failed", __func__); cipher_cleanup(&ciphercontext); memset(&ciphercontext, 0, sizeof(ciphercontext)); buffer_free(©); @@ -509,8 +864,8 @@ key_parse_private_rsa1(Buffer *blob, const char *passphrase, char **commentp) return prv; fail: - if (commentp) - xfree(*commentp); + if (commentp != NULL) + free(*commentp); key_free(prv); return NULL; } @@ -641,13 +996,20 @@ static Key * key_parse_private_type(Buffer *blob, int type, const char *passphrase, char **commentp) { + Key *k; + switch (type) { case KEY_RSA1: return key_parse_private_rsa1(blob, passphrase, commentp); case KEY_DSA: case KEY_ECDSA: case KEY_RSA: + return key_parse_private_pem(blob, type, passphrase, commentp); + case KEY_ED25519: + return key_parse_private2(blob, type, passphrase, commentp); case KEY_UNSPEC: + if ((k = key_parse_private2(blob, type, passphrase, commentp))) + return k; return key_parse_private_pem(blob, type, passphrase, commentp); default: error("%s: cannot parse key type %d", __func__, type); @@ -832,10 +1194,10 @@ key_load_cert(const char *filename) pub = key_new(KEY_UNSPEC); xasprintf(&file, "%s-cert.pub", filename); if (key_try_load_public(pub, file, NULL) == 1) { - xfree(file); + free(file); return pub; } - xfree(file); + free(file); key_free(pub); return NULL; } @@ -851,6 +1213,7 @@ key_load_private_cert(int type, const char *filename, const char *passphrase, case KEY_RSA: case KEY_DSA: case KEY_ECDSA: + case KEY_ED25519: break; default: error("%s: unsupported key type", __func__); @@ -943,4 +1306,3 @@ key_in_file(Key *key, const char *filename, int strict_type) fclose(f); return ret; } - @@ -1,4 +1,4 @@ -/* $OpenBSD: authfile.h,v 1.16 2011/05/04 21:15:29 djm Exp $ */ +/* $OpenBSD: authfile.h,v 1.17 2013/12/06 13:34:54 markus Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -15,7 +15,8 @@ #ifndef AUTHFILE_H #define AUTHFILE_H -int key_save_private(Key *, const char *, const char *, const char *); +int key_save_private(Key *, const char *, const char *, const char *, + int, const char *, int); int key_load_file(int, const char *, Buffer *); Key *key_load_cert(const char *); Key *key_load_public(const char *, char **); diff --git a/blocks.c b/blocks.c new file mode 100644 index 00000000..ad93fe50 --- /dev/null +++ b/blocks.c @@ -0,0 +1,248 @@ +/* $OpenBSD: blocks.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* + * Public Domain, Author: Daniel J. Bernstein + * Copied from nacl-20110221/crypto_hashblocks/sha512/ref/blocks.c + */ + +#include "includes.h" + +#include "crypto_api.h" + +typedef unsigned long long uint64; + +static uint64 load_bigendian(const unsigned char *x) +{ + return + (uint64) (x[7]) \ + | (((uint64) (x[6])) << 8) \ + | (((uint64) (x[5])) << 16) \ + | (((uint64) (x[4])) << 24) \ + | (((uint64) (x[3])) << 32) \ + | (((uint64) (x[2])) << 40) \ + | (((uint64) (x[1])) << 48) \ + | (((uint64) (x[0])) << 56) + ; +} + +static void store_bigendian(unsigned char *x,uint64 u) +{ + x[7] = u; u >>= 8; + x[6] = u; u >>= 8; + x[5] = u; u >>= 8; + x[4] = u; u >>= 8; + x[3] = u; u >>= 8; + x[2] = u; u >>= 8; + x[1] = u; u >>= 8; + x[0] = u; +} + +#define SHR(x,c) ((x) >> (c)) +#define ROTR(x,c) (((x) >> (c)) | ((x) << (64 - (c)))) + +#define Ch(x,y,z) ((x & y) ^ (~x & z)) +#define Maj(x,y,z) ((x & y) ^ (x & z) ^ (y & z)) +#define Sigma0(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39)) +#define Sigma1(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41)) +#define sigma0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x,7)) +#define sigma1(x) (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x,6)) + +#define M(w0,w14,w9,w1) w0 = sigma1(w14) + w9 + sigma0(w1) + w0; + +#define EXPAND \ + M(w0 ,w14,w9 ,w1 ) \ + M(w1 ,w15,w10,w2 ) \ + M(w2 ,w0 ,w11,w3 ) \ + M(w3 ,w1 ,w12,w4 ) \ + M(w4 ,w2 ,w13,w5 ) \ + M(w5 ,w3 ,w14,w6 ) \ + M(w6 ,w4 ,w15,w7 ) \ + M(w7 ,w5 ,w0 ,w8 ) \ + M(w8 ,w6 ,w1 ,w9 ) \ + M(w9 ,w7 ,w2 ,w10) \ + M(w10,w8 ,w3 ,w11) \ + M(w11,w9 ,w4 ,w12) \ + M(w12,w10,w5 ,w13) \ + M(w13,w11,w6 ,w14) \ + M(w14,w12,w7 ,w15) \ + M(w15,w13,w8 ,w0 ) + +#define F(w,k) \ + T1 = h + Sigma1(e) + Ch(e,f,g) + k + w; \ + T2 = Sigma0(a) + Maj(a,b,c); \ + h = g; \ + g = f; \ + f = e; \ + e = d + T1; \ + d = c; \ + c = b; \ + b = a; \ + a = T1 + T2; + +int crypto_hashblocks_sha512(unsigned char *statebytes,const unsigned char *in,unsigned long long inlen) +{ + uint64 state[8]; + uint64 a; + uint64 b; + uint64 c; + uint64 d; + uint64 e; + uint64 f; + uint64 g; + uint64 h; + uint64 T1; + uint64 T2; + + a = load_bigendian(statebytes + 0); state[0] = a; + b = load_bigendian(statebytes + 8); state[1] = b; + c = load_bigendian(statebytes + 16); state[2] = c; + d = load_bigendian(statebytes + 24); state[3] = d; + e = load_bigendian(statebytes + 32); state[4] = e; + f = load_bigendian(statebytes + 40); state[5] = f; + g = load_bigendian(statebytes + 48); state[6] = g; + h = load_bigendian(statebytes + 56); state[7] = h; + + while (inlen >= 128) { + uint64 w0 = load_bigendian(in + 0); + uint64 w1 = load_bigendian(in + 8); + uint64 w2 = load_bigendian(in + 16); + uint64 w3 = load_bigendian(in + 24); + uint64 w4 = load_bigendian(in + 32); + uint64 w5 = load_bigendian(in + 40); + uint64 w6 = load_bigendian(in + 48); + uint64 w7 = load_bigendian(in + 56); + uint64 w8 = load_bigendian(in + 64); + uint64 w9 = load_bigendian(in + 72); + uint64 w10 = load_bigendian(in + 80); + uint64 w11 = load_bigendian(in + 88); + uint64 w12 = load_bigendian(in + 96); + uint64 w13 = load_bigendian(in + 104); + uint64 w14 = load_bigendian(in + 112); + uint64 w15 = load_bigendian(in + 120); + + F(w0 ,0x428a2f98d728ae22ULL) + F(w1 ,0x7137449123ef65cdULL) + F(w2 ,0xb5c0fbcfec4d3b2fULL) + F(w3 ,0xe9b5dba58189dbbcULL) + F(w4 ,0x3956c25bf348b538ULL) + F(w5 ,0x59f111f1b605d019ULL) + F(w6 ,0x923f82a4af194f9bULL) + F(w7 ,0xab1c5ed5da6d8118ULL) + F(w8 ,0xd807aa98a3030242ULL) + F(w9 ,0x12835b0145706fbeULL) + F(w10,0x243185be4ee4b28cULL) + F(w11,0x550c7dc3d5ffb4e2ULL) + F(w12,0x72be5d74f27b896fULL) + F(w13,0x80deb1fe3b1696b1ULL) + F(w14,0x9bdc06a725c71235ULL) + F(w15,0xc19bf174cf692694ULL) + + EXPAND + + F(w0 ,0xe49b69c19ef14ad2ULL) + F(w1 ,0xefbe4786384f25e3ULL) + F(w2 ,0x0fc19dc68b8cd5b5ULL) + F(w3 ,0x240ca1cc77ac9c65ULL) + F(w4 ,0x2de92c6f592b0275ULL) + F(w5 ,0x4a7484aa6ea6e483ULL) + F(w6 ,0x5cb0a9dcbd41fbd4ULL) + F(w7 ,0x76f988da831153b5ULL) + F(w8 ,0x983e5152ee66dfabULL) + F(w9 ,0xa831c66d2db43210ULL) + F(w10,0xb00327c898fb213fULL) + F(w11,0xbf597fc7beef0ee4ULL) + F(w12,0xc6e00bf33da88fc2ULL) + F(w13,0xd5a79147930aa725ULL) + F(w14,0x06ca6351e003826fULL) + F(w15,0x142929670a0e6e70ULL) + + EXPAND + + F(w0 ,0x27b70a8546d22ffcULL) + F(w1 ,0x2e1b21385c26c926ULL) + F(w2 ,0x4d2c6dfc5ac42aedULL) + F(w3 ,0x53380d139d95b3dfULL) + F(w4 ,0x650a73548baf63deULL) + F(w5 ,0x766a0abb3c77b2a8ULL) + F(w6 ,0x81c2c92e47edaee6ULL) + F(w7 ,0x92722c851482353bULL) + F(w8 ,0xa2bfe8a14cf10364ULL) + F(w9 ,0xa81a664bbc423001ULL) + F(w10,0xc24b8b70d0f89791ULL) + F(w11,0xc76c51a30654be30ULL) + F(w12,0xd192e819d6ef5218ULL) + F(w13,0xd69906245565a910ULL) + F(w14,0xf40e35855771202aULL) + F(w15,0x106aa07032bbd1b8ULL) + + EXPAND + + F(w0 ,0x19a4c116b8d2d0c8ULL) + F(w1 ,0x1e376c085141ab53ULL) + F(w2 ,0x2748774cdf8eeb99ULL) + F(w3 ,0x34b0bcb5e19b48a8ULL) + F(w4 ,0x391c0cb3c5c95a63ULL) + F(w5 ,0x4ed8aa4ae3418acbULL) + F(w6 ,0x5b9cca4f7763e373ULL) + F(w7 ,0x682e6ff3d6b2b8a3ULL) + F(w8 ,0x748f82ee5defb2fcULL) + F(w9 ,0x78a5636f43172f60ULL) + F(w10,0x84c87814a1f0ab72ULL) + F(w11,0x8cc702081a6439ecULL) + F(w12,0x90befffa23631e28ULL) + F(w13,0xa4506cebde82bde9ULL) + F(w14,0xbef9a3f7b2c67915ULL) + F(w15,0xc67178f2e372532bULL) + + EXPAND + + F(w0 ,0xca273eceea26619cULL) + F(w1 ,0xd186b8c721c0c207ULL) + F(w2 ,0xeada7dd6cde0eb1eULL) + F(w3 ,0xf57d4f7fee6ed178ULL) + F(w4 ,0x06f067aa72176fbaULL) + F(w5 ,0x0a637dc5a2c898a6ULL) + F(w6 ,0x113f9804bef90daeULL) + F(w7 ,0x1b710b35131c471bULL) + F(w8 ,0x28db77f523047d84ULL) + F(w9 ,0x32caab7b40c72493ULL) + F(w10,0x3c9ebe0a15c9bebcULL) + F(w11,0x431d67c49c100d4cULL) + F(w12,0x4cc5d4becb3e42b6ULL) + F(w13,0x597f299cfc657e2aULL) + F(w14,0x5fcb6fab3ad6faecULL) + F(w15,0x6c44198c4a475817ULL) + + a += state[0]; + b += state[1]; + c += state[2]; + d += state[3]; + e += state[4]; + f += state[5]; + g += state[6]; + h += state[7]; + + state[0] = a; + state[1] = b; + state[2] = c; + state[3] = d; + state[4] = e; + state[5] = f; + state[6] = g; + state[7] = h; + + in += 128; + inlen -= 128; + } + + store_bigendian(statebytes + 0,state[0]); + store_bigendian(statebytes + 8,state[1]); + store_bigendian(statebytes + 16,state[2]); + store_bigendian(statebytes + 24,state[3]); + store_bigendian(statebytes + 32,state[4]); + store_bigendian(statebytes + 40,state[5]); + store_bigendian(statebytes + 48,state[6]); + store_bigendian(statebytes + 56,state[7]); + + return inlen; +} @@ -1,4 +1,4 @@ -/* $OpenBSD: bufaux.c,v 1.50 2010/08/31 09:58:37 djm Exp $ */ +/* $OpenBSD: bufaux.c,v 1.54 2014/01/12 08:13:13 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -45,6 +45,7 @@ #include <string.h> #include <stdarg.h> +#include <stdlib.h> #include "xmalloc.h" #include "buffer.h" @@ -181,7 +182,7 @@ buffer_get_string_ret(Buffer *buffer, u_int *length_ptr) /* Get the string. */ if (buffer_get_ret(buffer, value, len) == -1) { error("buffer_get_string_ret: buffer_get failed"); - xfree(value); + free(value); return (NULL); } /* Append a null character to make processing easier. */ @@ -216,7 +217,7 @@ buffer_get_cstring_ret(Buffer *buffer, u_int *length_ptr) error("buffer_get_cstring_ret: string contains \\0"); else { bzero(ret, length); - xfree(ret); + free(ret); return NULL; } } @@ -285,7 +286,7 @@ buffer_put_cstring(Buffer *buffer, const char *s) * Returns a character from the buffer (0 - 255). */ int -buffer_get_char_ret(char *ret, Buffer *buffer) +buffer_get_char_ret(u_char *ret, Buffer *buffer) { if (buffer_get_ret(buffer, ret, 1) == -1) { error("buffer_get_char_ret: buffer_get_ret failed"); @@ -297,11 +298,11 @@ buffer_get_char_ret(char *ret, Buffer *buffer) int buffer_get_char(Buffer *buffer) { - char ch; + u_char ch; if (buffer_get_char_ret(&ch, buffer) == -1) fatal("buffer_get_char: buffer error"); - return (u_char) ch; + return ch; } /* @@ -314,3 +315,76 @@ buffer_put_char(Buffer *buffer, int value) buffer_append(buffer, &ch, 1); } + +/* Pseudo bignum functions */ + +void * +buffer_get_bignum2_as_string_ret(Buffer *buffer, u_int *length_ptr) +{ + u_int len; + u_char *bin, *p, *ret; + + if ((p = bin = buffer_get_string_ret(buffer, &len)) == NULL) { + error("%s: invalid bignum", __func__); + return NULL; + } + + if (len > 0 && (bin[0] & 0x80)) { + error("%s: negative numbers not supported", __func__); + free(bin); + return NULL; + } + if (len > 8 * 1024) { + error("%s: cannot handle BN of size %d", __func__, len); + free(bin); + return NULL; + } + /* Skip zero prefix on numbers with the MSB set */ + if (len > 1 && bin[0] == 0x00 && (bin[1] & 0x80) != 0) { + p++; + len--; + } + ret = xmalloc(len); + memcpy(ret, p, len); + memset(p, '\0', len); + free(bin); + return ret; +} + +void * +buffer_get_bignum2_as_string(Buffer *buffer, u_int *l) +{ + void *ret = buffer_get_bignum2_as_string_ret(buffer, l); + + if (ret == NULL) + fatal("%s: buffer error", __func__); + return ret; +} + +/* + * Stores a string using the bignum encoding rules (\0 pad if MSB set). + */ +void +buffer_put_bignum2_from_string(Buffer *buffer, const u_char *s, u_int l) +{ + u_char *buf, *p; + int pad = 0; + + if (l > 8 * 1024) + fatal("%s: length %u too long", __func__, l); + p = buf = xmalloc(l + 1); + /* + * If most significant bit is set then prepend a zero byte to + * avoid interpretation as a negative number. + */ + if (l > 0 && (s[0] & 0x80) != 0) { + *p++ = '\0'; + pad = 1; + } + memcpy(p, s, l); + buffer_put_string(buffer, buf, l + pad); + memset(buf, '\0', l + pad); + free(buf); +} + + @@ -1,4 +1,4 @@ -/* $OpenBSD: bufbn.c,v 1.6 2007/06/02 09:04:58 djm Exp $*/ +/* $OpenBSD: bufbn.c,v 1.8 2013/11/08 11:15:19 dtucker Exp $*/ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -45,6 +45,7 @@ #include <string.h> #include <stdarg.h> +#include <stdlib.h> #include "xmalloc.h" #include "buffer.h" @@ -69,7 +70,7 @@ buffer_put_bignum_ret(Buffer *buffer, const BIGNUM *value) if (oi != bin_size) { error("buffer_put_bignum_ret: BN_bn2bin() failed: oi %d != bin_size %d", oi, bin_size); - xfree(buf); + free(buf); return (-1); } @@ -80,7 +81,7 @@ buffer_put_bignum_ret(Buffer *buffer, const BIGNUM *value) buffer_append(buffer, buf, oi); memset(buf, 0, bin_size); - xfree(buf); + free(buf); return (0); } @@ -167,13 +168,13 @@ buffer_put_bignum2_ret(Buffer *buffer, const BIGNUM *value) if (oi < 0 || (u_int)oi != bytes - 1) { error("buffer_put_bignum2_ret: BN_bn2bin() failed: " "oi %d != bin_size %d", oi, bytes); - xfree(buf); + free(buf); return (-1); } hasnohigh = (buf[1] & 0x80) ? 0 : 1; buffer_put_string(buffer, buf+hasnohigh, bytes-hasnohigh); memset(buf, 0, bytes); - xfree(buf); + free(buf); return (0); } @@ -197,21 +198,21 @@ buffer_get_bignum2_ret(Buffer *buffer, BIGNUM *value) if (len > 0 && (bin[0] & 0x80)) { error("buffer_get_bignum2_ret: negative numbers not supported"); - xfree(bin); + free(bin); return (-1); } if (len > 8 * 1024) { error("buffer_get_bignum2_ret: cannot handle BN of size %d", len); - xfree(bin); + free(bin); return (-1); } if (BN_bin2bn(bin, len, value) == NULL) { error("buffer_get_bignum2_ret: BN_bin2bn failed"); - xfree(bin); + free(bin); return (-1); } - xfree(bin); + free(bin); return (0); } @@ -1,4 +1,4 @@ -/* $OpenBSD: bufec.c,v 1.1 2010/08/31 11:54:45 djm Exp $ */ +/* $OpenBSD: bufec.c,v 1.2 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2010 Damien Miller <djm@mindrot.org> * @@ -78,7 +78,7 @@ buffer_put_ecpoint_ret(Buffer *buffer, const EC_GROUP *curve, out: if (buf != NULL) { bzero(buf, len); - xfree(buf); + free(buf); } BN_CTX_free(bnctx); return ret; @@ -131,7 +131,7 @@ buffer_get_ecpoint_ret(Buffer *buffer, const EC_GROUP *curve, out: BN_CTX_free(bnctx); bzero(buf, len); - xfree(buf); + free(buf); return ret; } @@ -1,4 +1,4 @@ -/* $OpenBSD: buffer.c,v 1.32 2010/02/09 03:56:28 djm Exp $ */ +/* $OpenBSD: buffer.c,v 1.34 2013/11/08 11:15:19 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -19,6 +19,7 @@ #include <stdio.h> #include <string.h> #include <stdarg.h> +#include <stdlib.h> #include "xmalloc.h" #include "buffer.h" @@ -50,7 +51,7 @@ buffer_free(Buffer *buffer) if (buffer->alloc > 0) { memset(buffer->buf, 0, buffer->alloc); buffer->alloc = 0; - xfree(buffer->buf); + free(buffer->buf); } } @@ -1,4 +1,4 @@ -/* $OpenBSD: buffer.h,v 1.21 2010/08/31 11:54:45 djm Exp $ */ +/* $OpenBSD: buffer.h,v 1.23 2014/01/12 08:13:13 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -84,7 +84,11 @@ int buffer_get_int64_ret(u_int64_t *, Buffer *); void *buffer_get_string_ret(Buffer *, u_int *); char *buffer_get_cstring_ret(Buffer *, u_int *); void *buffer_get_string_ptr_ret(Buffer *, u_int *); -int buffer_get_char_ret(char *, Buffer *); +int buffer_get_char_ret(u_char *, Buffer *); + +void *buffer_get_bignum2_as_string_ret(Buffer *, u_int *); +void *buffer_get_bignum2_as_string(Buffer *, u_int *); +void buffer_put_bignum2_from_string(Buffer *, const u_char *, u_int); #ifdef OPENSSL_HAS_ECC #include <openssl/ec.h> diff --git a/buildpkg.sh.in b/buildpkg.sh.in index 4de9d42e..4b842b3f 100644 --- a/buildpkg.sh.in +++ b/buildpkg.sh.in @@ -337,17 +337,17 @@ then else if [ "\${USE_SYM_LINKS}" = yes ] then - [ "$RCS_D" = yes ] && \ + [ "$RCS_D" = yes ] && \\ installf ${PKGNAME} \${PKG_INSTALL_ROOT}$TEST_DIR/etc/rcS.d/${SYSVINITSTOPT}${SYSVINIT_NAME}=../init.d/${SYSVINIT_NAME} s installf ${PKGNAME} \${PKG_INSTALL_ROOT}$TEST_DIR/etc/rc0.d/${SYSVINITSTOPT}${SYSVINIT_NAME}=../init.d/${SYSVINIT_NAME} s - [ "$RC1_D" = no ] || \ + [ "$RC1_D" = no ] || \\ installf ${PKGNAME} \${PKG_INSTALL_ROOT}$TEST_DIR/etc/rc1.d/${SYSVINITSTOPT}${SYSVINIT_NAME}=../init.d/${SYSVINIT_NAME} s installf ${PKGNAME} \${PKG_INSTALL_ROOT}$TEST_DIR/etc/rc2.d/${SYSVINITSTART}${SYSVINIT_NAME}=../init.d/${SYSVINIT_NAME} s else - [ "$RCS_D" = yes ] && \ + [ "$RCS_D" = yes ] && \\ installf ${PKGNAME} \${PKG_INSTALL_ROOT}$TEST_DIR/etc/rcS.d/${SYSVINITSTOPT}${SYSVINIT_NAME}=\${PKG_INSTALL_ROOT}$TEST_DIR/etc/init.d/${SYSVINIT_NAME} l installf ${PKGNAME} \${PKG_INSTALL_ROOT}$TEST_DIR/etc/rc0.d/${SYSVINITSTOPT}${SYSVINIT_NAME}=\${PKG_INSTALL_ROOT}$TEST_DIR/etc/init.d/${SYSVINIT_NAME} l - [ "$RC1_D" = no ] || \ + [ "$RC1_D" = no ] || \\ installf ${PKGNAME} \${PKG_INSTALL_ROOT}$TEST_DIR/etc/rc1.d/${SYSVINITSTOPT}${SYSVINIT_NAME}=\${PKG_INSTALL_ROOT}$TEST_DIR/etc/init.d/${SYSVINIT_NAME} l installf ${PKGNAME} \${PKG_INSTALL_ROOT}$TEST_DIR/etc/rc2.d/${SYSVINITSTART}${SYSVINIT_NAME}=\${PKG_INSTALL_ROOT}$TEST_DIR/etc/init.d/${SYSVINIT_NAME} l fi @@ -538,10 +538,10 @@ then PRE_INS_STOP=no POST_INS_START=no # determine if should restart the daemon -if [ -s ${piddir}/sshd.pid ] && \ +if [ -s ${piddir}/sshd.pid ] && \\ /usr/bin/svcs -H $OPENSSH_FMRI 2>&1 | egrep "^online" > /dev/null 2>&1 then - ans=\`ckyorn -d n \ + ans=\`ckyorn -d n \\ -p "Should the running sshd daemon be restarted? ${DEF_MSG}"\` || exit \$? case \$ans in [y,Y]*) PRE_INS_STOP=yes @@ -552,7 +552,7 @@ then else # determine if we should start sshd - ans=\`ckyorn -d n \ + ans=\`ckyorn -d n \\ -p "Start the sshd daemon after installing this package? ${DEF_MSG}"\` || exit \$? case \$ans in [y,Y]*) POST_INS_START=yes ;; @@ -573,7 +573,7 @@ USE_SYM_LINKS=no PRE_INS_STOP=no POST_INS_START=no # Use symbolic links? -ans=\`ckyorn -d n \ +ans=\`ckyorn -d n \\ -p "Do you want symbolic links for the start/stop scripts? ${DEF_MSG}"\` || exit \$? case \$ans in [y,Y]*) USE_SYM_LINKS=yes ;; @@ -582,7 +582,7 @@ esac # determine if should restart the daemon if [ -s ${piddir}/sshd.pid -a -f ${TEST_DIR}/etc/init.d/${SYSVINIT_NAME} ] then - ans=\`ckyorn -d n \ + ans=\`ckyorn -d n \\ -p "Should the running sshd daemon be restarted? ${DEF_MSG}"\` || exit \$? case \$ans in [y,Y]*) PRE_INS_STOP=yes @@ -593,7 +593,7 @@ then else # determine if we should start sshd - ans=\`ckyorn -d n \ + ans=\`ckyorn -d n \\ -p "Start the sshd daemon after installing this package? ${DEF_MSG}"\` || exit \$? case \$ans in [y,Y]*) POST_INS_START=yes ;; @@ -1,4 +1,4 @@ -/* $OpenBSD: canohost.c,v 1.66 2010/01/13 01:20:20 dtucker Exp $ */ +/* $OpenBSD: canohost.c,v 1.70 2014/01/19 04:17:29 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -20,7 +20,6 @@ #include <netinet/in.h> #include <arpa/inet.h> -#include <ctype.h> #include <errno.h> #include <netdb.h> #include <stdio.h> @@ -41,14 +40,13 @@ static int cached_port = -1; /* * Return the canonical name of the host at the other end of the socket. The - * caller should free the returned string with xfree. + * caller should free the returned string. */ static char * get_remote_hostname(int sock, int use_dns) { struct sockaddr_storage from; - int i; socklen_t fromlen; struct addrinfo hints, *ai, *aitop; char name[NI_MAXHOST], ntop[NI_MAXHOST], ntop2[NI_MAXHOST]; @@ -99,13 +97,9 @@ get_remote_hostname(int sock, int use_dns) return xstrdup(ntop); } - /* - * Convert it to all lowercase (which is expected by the rest - * of this software). - */ - for (i = 0; name[i]; i++) - if (isupper(name[i])) - name[i] = (char)tolower(name[i]); + /* Names are stores in lowercase. */ + lowercase(name); + /* * Map it back to an IP address and check that the given * address actually is an address of this host. This is @@ -160,8 +154,7 @@ check_ip_options(int sock, char *ipaddr) #ifdef IP_OPTIONS u_char options[200]; char text[sizeof(options) * 3 + 1]; - socklen_t option_size; - u_int i; + socklen_t option_size, i; int ipproto; struct protoent *ip; @@ -323,10 +316,8 @@ get_local_name(int fd) void clear_cached_addr(void) { - if (canonical_host_ip != NULL) { - xfree(canonical_host_ip); - canonical_host_ip = NULL; - } + free(canonical_host_ip); + canonical_host_ip = NULL; cached_port = -1; } diff --git a/chacha.c b/chacha.c new file mode 100644 index 00000000..a84c25ea --- /dev/null +++ b/chacha.c @@ -0,0 +1,219 @@ +/* +chacha-merged.c version 20080118 +D. J. Bernstein +Public domain. +*/ + +#include "includes.h" + +#include "chacha.h" + +/* $OpenBSD: chacha.c,v 1.1 2013/11/21 00:45:44 djm Exp $ */ + +typedef unsigned char u8; +typedef unsigned int u32; + +typedef struct chacha_ctx chacha_ctx; + +#define U8C(v) (v##U) +#define U32C(v) (v##U) + +#define U8V(v) ((u8)(v) & U8C(0xFF)) +#define U32V(v) ((u32)(v) & U32C(0xFFFFFFFF)) + +#define ROTL32(v, n) \ + (U32V((v) << (n)) | ((v) >> (32 - (n)))) + +#define U8TO32_LITTLE(p) \ + (((u32)((p)[0]) ) | \ + ((u32)((p)[1]) << 8) | \ + ((u32)((p)[2]) << 16) | \ + ((u32)((p)[3]) << 24)) + +#define U32TO8_LITTLE(p, v) \ + do { \ + (p)[0] = U8V((v) ); \ + (p)[1] = U8V((v) >> 8); \ + (p)[2] = U8V((v) >> 16); \ + (p)[3] = U8V((v) >> 24); \ + } while (0) + +#define ROTATE(v,c) (ROTL32(v,c)) +#define XOR(v,w) ((v) ^ (w)) +#define PLUS(v,w) (U32V((v) + (w))) +#define PLUSONE(v) (PLUS((v),1)) + +#define QUARTERROUND(a,b,c,d) \ + a = PLUS(a,b); d = ROTATE(XOR(d,a),16); \ + c = PLUS(c,d); b = ROTATE(XOR(b,c),12); \ + a = PLUS(a,b); d = ROTATE(XOR(d,a), 8); \ + c = PLUS(c,d); b = ROTATE(XOR(b,c), 7); + +static const char sigma[16] = "expand 32-byte k"; +static const char tau[16] = "expand 16-byte k"; + +void +chacha_keysetup(chacha_ctx *x,const u8 *k,u32 kbits) +{ + const char *constants; + + x->input[4] = U8TO32_LITTLE(k + 0); + x->input[5] = U8TO32_LITTLE(k + 4); + x->input[6] = U8TO32_LITTLE(k + 8); + x->input[7] = U8TO32_LITTLE(k + 12); + if (kbits == 256) { /* recommended */ + k += 16; + constants = sigma; + } else { /* kbits == 128 */ + constants = tau; + } + x->input[8] = U8TO32_LITTLE(k + 0); + x->input[9] = U8TO32_LITTLE(k + 4); + x->input[10] = U8TO32_LITTLE(k + 8); + x->input[11] = U8TO32_LITTLE(k + 12); + x->input[0] = U8TO32_LITTLE(constants + 0); + x->input[1] = U8TO32_LITTLE(constants + 4); + x->input[2] = U8TO32_LITTLE(constants + 8); + x->input[3] = U8TO32_LITTLE(constants + 12); +} + +void +chacha_ivsetup(chacha_ctx *x, const u8 *iv, const u8 *counter) +{ + x->input[12] = counter == NULL ? 0 : U8TO32_LITTLE(counter + 0); + x->input[13] = counter == NULL ? 0 : U8TO32_LITTLE(counter + 4); + x->input[14] = U8TO32_LITTLE(iv + 0); + x->input[15] = U8TO32_LITTLE(iv + 4); +} + +void +chacha_encrypt_bytes(chacha_ctx *x,const u8 *m,u8 *c,u32 bytes) +{ + u32 x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15; + u32 j0, j1, j2, j3, j4, j5, j6, j7, j8, j9, j10, j11, j12, j13, j14, j15; + u8 *ctarget = NULL; + u8 tmp[64]; + u_int i; + + if (!bytes) return; + + j0 = x->input[0]; + j1 = x->input[1]; + j2 = x->input[2]; + j3 = x->input[3]; + j4 = x->input[4]; + j5 = x->input[5]; + j6 = x->input[6]; + j7 = x->input[7]; + j8 = x->input[8]; + j9 = x->input[9]; + j10 = x->input[10]; + j11 = x->input[11]; + j12 = x->input[12]; + j13 = x->input[13]; + j14 = x->input[14]; + j15 = x->input[15]; + + for (;;) { + if (bytes < 64) { + for (i = 0;i < bytes;++i) tmp[i] = m[i]; + m = tmp; + ctarget = c; + c = tmp; + } + x0 = j0; + x1 = j1; + x2 = j2; + x3 = j3; + x4 = j4; + x5 = j5; + x6 = j6; + x7 = j7; + x8 = j8; + x9 = j9; + x10 = j10; + x11 = j11; + x12 = j12; + x13 = j13; + x14 = j14; + x15 = j15; + for (i = 20;i > 0;i -= 2) { + QUARTERROUND( x0, x4, x8,x12) + QUARTERROUND( x1, x5, x9,x13) + QUARTERROUND( x2, x6,x10,x14) + QUARTERROUND( x3, x7,x11,x15) + QUARTERROUND( x0, x5,x10,x15) + QUARTERROUND( x1, x6,x11,x12) + QUARTERROUND( x2, x7, x8,x13) + QUARTERROUND( x3, x4, x9,x14) + } + x0 = PLUS(x0,j0); + x1 = PLUS(x1,j1); + x2 = PLUS(x2,j2); + x3 = PLUS(x3,j3); + x4 = PLUS(x4,j4); + x5 = PLUS(x5,j5); + x6 = PLUS(x6,j6); + x7 = PLUS(x7,j7); + x8 = PLUS(x8,j8); + x9 = PLUS(x9,j9); + x10 = PLUS(x10,j10); + x11 = PLUS(x11,j11); + x12 = PLUS(x12,j12); + x13 = PLUS(x13,j13); + x14 = PLUS(x14,j14); + x15 = PLUS(x15,j15); + + x0 = XOR(x0,U8TO32_LITTLE(m + 0)); + x1 = XOR(x1,U8TO32_LITTLE(m + 4)); + x2 = XOR(x2,U8TO32_LITTLE(m + 8)); + x3 = XOR(x3,U8TO32_LITTLE(m + 12)); + x4 = XOR(x4,U8TO32_LITTLE(m + 16)); + x5 = XOR(x5,U8TO32_LITTLE(m + 20)); + x6 = XOR(x6,U8TO32_LITTLE(m + 24)); + x7 = XOR(x7,U8TO32_LITTLE(m + 28)); + x8 = XOR(x8,U8TO32_LITTLE(m + 32)); + x9 = XOR(x9,U8TO32_LITTLE(m + 36)); + x10 = XOR(x10,U8TO32_LITTLE(m + 40)); + x11 = XOR(x11,U8TO32_LITTLE(m + 44)); + x12 = XOR(x12,U8TO32_LITTLE(m + 48)); + x13 = XOR(x13,U8TO32_LITTLE(m + 52)); + x14 = XOR(x14,U8TO32_LITTLE(m + 56)); + x15 = XOR(x15,U8TO32_LITTLE(m + 60)); + + j12 = PLUSONE(j12); + if (!j12) { + j13 = PLUSONE(j13); + /* stopping at 2^70 bytes per nonce is user's responsibility */ + } + + U32TO8_LITTLE(c + 0,x0); + U32TO8_LITTLE(c + 4,x1); + U32TO8_LITTLE(c + 8,x2); + U32TO8_LITTLE(c + 12,x3); + U32TO8_LITTLE(c + 16,x4); + U32TO8_LITTLE(c + 20,x5); + U32TO8_LITTLE(c + 24,x6); + U32TO8_LITTLE(c + 28,x7); + U32TO8_LITTLE(c + 32,x8); + U32TO8_LITTLE(c + 36,x9); + U32TO8_LITTLE(c + 40,x10); + U32TO8_LITTLE(c + 44,x11); + U32TO8_LITTLE(c + 48,x12); + U32TO8_LITTLE(c + 52,x13); + U32TO8_LITTLE(c + 56,x14); + U32TO8_LITTLE(c + 60,x15); + + if (bytes <= 64) { + if (bytes < 64) { + for (i = 0;i < bytes;++i) ctarget[i] = c[i]; + } + x->input[12] = j12; + x->input[13] = j13; + return; + } + bytes -= 64; + c += 64; + m += 64; + } +} diff --git a/chacha.h b/chacha.h new file mode 100644 index 00000000..4ef42cc7 --- /dev/null +++ b/chacha.h @@ -0,0 +1,35 @@ +/* $OpenBSD: chacha.h,v 1.1 2013/11/21 00:45:44 djm Exp $ */ + +/* +chacha-merged.c version 20080118 +D. J. Bernstein +Public domain. +*/ + +#ifndef CHACHA_H +#define CHACHA_H + +#include <sys/types.h> + +struct chacha_ctx { + u_int input[16]; +}; + +#define CHACHA_MINKEYLEN 16 +#define CHACHA_NONCELEN 8 +#define CHACHA_CTRLEN 8 +#define CHACHA_STATELEN (CHACHA_NONCELEN+CHACHA_CTRLEN) +#define CHACHA_BLOCKLEN 64 + +void chacha_keysetup(struct chacha_ctx *x, const u_char *k, u_int kbits) + __attribute__((__bounded__(__minbytes__, 2, CHACHA_MINKEYLEN))); +void chacha_ivsetup(struct chacha_ctx *x, const u_char *iv, const u_char *ctr) + __attribute__((__bounded__(__minbytes__, 2, CHACHA_NONCELEN))) + __attribute__((__bounded__(__minbytes__, 3, CHACHA_CTRLEN))); +void chacha_encrypt_bytes(struct chacha_ctx *x, const u_char *m, + u_char *c, u_int bytes) + __attribute__((__bounded__(__buffer__, 2, 4))) + __attribute__((__bounded__(__buffer__, 3, 4))); + +#endif /* CHACHA_H */ + @@ -1,4 +1,4 @@ -/* $OpenBSD: channels.c,v 1.315 2011/09/23 07:45:05 markus Exp $ */ +/* $OpenBSD: channels.c,v 1.328 2013/12/19 01:04:36 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -213,6 +213,7 @@ channel_lookup(int id) case SSH_CHANNEL_OPEN: case SSH_CHANNEL_INPUT_DRAINING: case SSH_CHANNEL_OUTPUT_DRAINING: + case SSH_CHANNEL_ABANDONED: return (c); } logit("Non-public channel %d, type %d.", id, c->type); @@ -247,7 +248,10 @@ channel_register_fds(Channel *c, int rfd, int wfd, int efd, if ((c->isatty = is_tty) != 0) debug2("channel %d: rfd %d isatty", c->self, c->rfd); +#ifdef _AIX + /* XXX: Later AIX versions can't push as much data to tty */ c->wfd_isatty = is_tty || isatty(c->wfd); +#endif /* enable nonblocking mode */ if (nonblock) { @@ -311,6 +315,7 @@ channel_new(char *ctype, int type, int rfd, int wfd, int efd, c->istate = CHAN_INPUT_OPEN; c->flags = 0; channel_register_fds(c, rfd, wfd, efd, extusage, nonblock, 0); + c->notbefore = 0; c->self = found; c->type = type; c->ctype = ctype; @@ -400,7 +405,7 @@ channel_free(Channel *c) s = channel_open_message(); debug3("channel %d: status: %s", c->self, s); - xfree(s); + free(s); if (c->sock != -1) shutdown(c->sock, SHUT_RDWR); @@ -408,29 +413,23 @@ channel_free(Channel *c) buffer_free(&c->input); buffer_free(&c->output); buffer_free(&c->extended); - if (c->remote_name) { - xfree(c->remote_name); - c->remote_name = NULL; - } - if (c->path) { - xfree(c->path); - c->path = NULL; - } - if (c->listening_addr) { - xfree(c->listening_addr); - c->listening_addr = NULL; - } + free(c->remote_name); + c->remote_name = NULL; + free(c->path); + c->path = NULL; + free(c->listening_addr); + c->listening_addr = NULL; while ((cc = TAILQ_FIRST(&c->status_confirms)) != NULL) { if (cc->abandon_cb != NULL) cc->abandon_cb(c, cc->ctx); TAILQ_REMOVE(&c->status_confirms, cc, entry); bzero(cc, sizeof(*cc)); - xfree(cc); + free(cc); } if (c->filter_cleanup != NULL && c->filter_ctx != NULL) c->filter_cleanup(c->self, c->filter_ctx); channels[c->self] = NULL; - xfree(c); + free(c); } void @@ -535,6 +534,7 @@ channel_still_open(void) case SSH_CHANNEL_DYNAMIC: case SSH_CHANNEL_CONNECTING: case SSH_CHANNEL_ZOMBIE: + case SSH_CHANNEL_ABANDONED: continue; case SSH_CHANNEL_LARVAL: if (!compat20) @@ -580,6 +580,7 @@ channel_find_open(void) case SSH_CHANNEL_OPENING: case SSH_CHANNEL_CONNECTING: case SSH_CHANNEL_ZOMBIE: + case SSH_CHANNEL_ABANDONED: continue; case SSH_CHANNEL_LARVAL: case SSH_CHANNEL_AUTH_SOCKET: @@ -627,6 +628,7 @@ channel_open_message(void) case SSH_CHANNEL_CLOSED: case SSH_CHANNEL_AUTH_SOCKET: case SSH_CHANNEL_ZOMBIE: + case SSH_CHANNEL_ABANDONED: case SSH_CHANNEL_MUX_CLIENT: case SSH_CHANNEL_MUX_LISTENER: continue; @@ -702,7 +704,7 @@ channel_register_status_confirm(int id, channel_confirm_cb *cb, if ((c = channel_lookup(id)) == NULL) fatal("channel_register_expect: %d: bad id", id); - cc = xmalloc(sizeof(*cc)); + cc = xcalloc(1, sizeof(*cc)); cc->cb = cb; cc->abandon_cb = abandon_cb; cc->ctx = ctx; @@ -1079,10 +1081,8 @@ channel_decode_socks4(Channel *c, fd_set *readset, fd_set *writeset) strlcpy(username, p, sizeof(username)); buffer_consume(&c->input, len); - if (c->path != NULL) { - xfree(c->path); - c->path = NULL; - } + free(c->path); + c->path = NULL; if (need == 1) { /* SOCKS4: one string */ host = inet_ntoa(s4_req.dest_addr); c->path = xstrdup(host); @@ -1142,7 +1142,8 @@ channel_decode_socks5(Channel *c, fd_set *readset, fd_set *writeset) u_int8_t atyp; } s5_req, s5_rsp; u_int16_t dest_port; - u_char *p, dest_addr[255+1], ntop[INET6_ADDRSTRLEN]; + char dest_addr[255+1], ntop[INET6_ADDRSTRLEN]; + u_char *p; u_int have, need, i, found, nmethods, addrlen, af; debug2("channel %d: decode socks5", c->self); @@ -1212,13 +1213,11 @@ channel_decode_socks5(Channel *c, fd_set *readset, fd_set *writeset) buffer_consume(&c->input, sizeof(s5_req)); if (s5_req.atyp == SSH_SOCKS5_DOMAIN) buffer_consume(&c->input, 1); /* host string length */ - buffer_get(&c->input, (char *)&dest_addr, addrlen); + buffer_get(&c->input, &dest_addr, addrlen); buffer_get(&c->input, (char *)&dest_port, 2); dest_addr[addrlen] = '\0'; - if (c->path != NULL) { - xfree(c->path); - c->path = NULL; - } + free(c->path); + c->path = NULL; if (s5_req.atyp == SSH_SOCKS5_DOMAIN) { if (addrlen >= NI_MAXHOST) { error("channel %d: dynamic request: socks5 hostname " @@ -1240,11 +1239,10 @@ channel_decode_socks5(Channel *c, fd_set *readset, fd_set *writeset) s5_rsp.command = SSH_SOCKS5_SUCCESS; s5_rsp.reserved = 0; /* ignored */ s5_rsp.atyp = SSH_SOCKS5_IPV4; - ((struct in_addr *)&dest_addr)->s_addr = INADDR_ANY; dest_port = 0; /* ignored */ buffer_append(&c->output, &s5_rsp, sizeof(s5_rsp)); - buffer_append(&c->output, &dest_addr, sizeof(struct in_addr)); + buffer_put_int(&c->output, ntohl(INADDR_ANY)); /* bind address */ buffer_append(&c->output, &dest_port, sizeof(dest_port)); return 1; } @@ -1323,7 +1321,7 @@ channel_post_x11_listener(Channel *c, fd_set *readset, fd_set *writeset) { Channel *nc; struct sockaddr_storage addr; - int newsock; + int newsock, oerrno; socklen_t addrlen; char buf[16384], *remote_ipaddr; int remote_port; @@ -1333,12 +1331,18 @@ channel_post_x11_listener(Channel *c, fd_set *readset, fd_set *writeset) addrlen = sizeof(addr); newsock = accept(c->sock, (struct sockaddr *)&addr, &addrlen); if (c->single_connection) { + oerrno = errno; debug2("single_connection: closing X11 listener."); channel_close_fd(&c->sock); chan_mark_dead(c); + errno = oerrno; } if (newsock < 0) { - error("accept: %.100s", strerror(errno)); + if (errno != EINTR && errno != EWOULDBLOCK && + errno != ECONNABORTED) + error("accept: %.100s", strerror(errno)); + if (errno == EMFILE || errno == ENFILE) + c->notbefore = monotime() + 1; return; } set_nodelay(newsock); @@ -1372,7 +1376,7 @@ channel_post_x11_listener(Channel *c, fd_set *readset, fd_set *writeset) packet_put_cstring(buf); packet_send(); } - xfree(remote_ipaddr); + free(remote_ipaddr); } } @@ -1381,12 +1385,14 @@ port_open_helper(Channel *c, char *rtype) { int direct; char buf[1024]; + char *local_ipaddr = get_local_ipaddr(c->sock); + int local_port = get_sock_port(c->sock, 1); char *remote_ipaddr = get_peer_ipaddr(c->sock); int remote_port = get_peer_port(c->sock); if (remote_port == -1) { /* Fake addr/port to appease peers that validate it (Tectia) */ - xfree(remote_ipaddr); + free(remote_ipaddr); remote_ipaddr = xstrdup("127.0.0.1"); remote_port = 65535; } @@ -1395,11 +1401,11 @@ port_open_helper(Channel *c, char *rtype) snprintf(buf, sizeof buf, "%s: listening port %d for %.100s port %d, " - "connect from %.200s port %d", + "connect from %.200s port %d to %.100s port %d", rtype, c->listening_port, c->path, c->host_port, - remote_ipaddr, remote_port); + remote_ipaddr, remote_port, local_ipaddr, local_port); - xfree(c->remote_name); + free(c->remote_name); c->remote_name = xstrdup(buf); if (compat20) { @@ -1415,7 +1421,7 @@ port_open_helper(Channel *c, char *rtype) } else { /* listen address, port */ packet_put_cstring(c->path); - packet_put_int(c->listening_port); + packet_put_int(local_port); } /* originator host and port */ packet_put_cstring(remote_ipaddr); @@ -1431,7 +1437,8 @@ port_open_helper(Channel *c, char *rtype) packet_put_cstring(c->remote_name); packet_send(); } - xfree(remote_ipaddr); + free(remote_ipaddr); + free(local_ipaddr); } static void @@ -1481,7 +1488,11 @@ channel_post_port_listener(Channel *c, fd_set *readset, fd_set *writeset) addrlen = sizeof(addr); newsock = accept(c->sock, (struct sockaddr *)&addr, &addrlen); if (newsock < 0) { - error("accept: %.100s", strerror(errno)); + if (errno != EINTR && errno != EWOULDBLOCK && + errno != ECONNABORTED) + error("accept: %.100s", strerror(errno)); + if (errno == EMFILE || errno == ENFILE) + c->notbefore = monotime() + 1; return; } set_nodelay(newsock); @@ -1514,7 +1525,10 @@ channel_post_auth_listener(Channel *c, fd_set *readset, fd_set *writeset) addrlen = sizeof(addr); newsock = accept(c->sock, (struct sockaddr *)&addr, &addrlen); if (newsock < 0) { - error("accept from auth socket: %.100s", strerror(errno)); + error("accept from auth socket: %.100s", + strerror(errno)); + if (errno == EMFILE || errno == ENFILE) + c->notbefore = monotime() + 1; return; } nc = channel_new("accepted auth socket", @@ -1677,7 +1691,7 @@ channel_handle_wfd(Channel *c, fd_set *readset, fd_set *writeset) if (c->datagram) { /* ignore truncated writes, datagrams might get lost */ len = write(c->wfd, buf, dlen); - xfree(data); + free(data); if (len < 0 && (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK)) return 1; @@ -1917,6 +1931,8 @@ channel_post_mux_listener(Channel *c, fd_set *readset, fd_set *writeset) if ((newsock = accept(c->sock, (struct sockaddr*)&addr, &addrlen)) == -1) { error("%s accept: %s", __func__, strerror(errno)); + if (errno == EMFILE || errno == ENFILE) + c->notbefore = monotime() + 1; return; } @@ -2067,16 +2083,21 @@ channel_garbage_collect(Channel *c) } static void -channel_handler(chan_fn *ftab[], fd_set *readset, fd_set *writeset) +channel_handler(chan_fn *ftab[], fd_set *readset, fd_set *writeset, + time_t *unpause_secs) { static int did_init = 0; u_int i, oalloc; Channel *c; + time_t now; if (!did_init) { channel_handler_init(); did_init = 1; } + now = monotime(); + if (unpause_secs != NULL) + *unpause_secs = 0; for (i = 0, oalloc = channels_alloc; i < oalloc; i++) { c = channels[i]; if (c == NULL) @@ -2087,10 +2108,30 @@ channel_handler(chan_fn *ftab[], fd_set *readset, fd_set *writeset) else continue; } - if (ftab[c->type] != NULL) - (*ftab[c->type])(c, readset, writeset); + if (ftab[c->type] != NULL) { + /* + * Run handlers that are not paused. + */ + if (c->notbefore <= now) + (*ftab[c->type])(c, readset, writeset); + else if (unpause_secs != NULL) { + /* + * Collect the time that the earliest + * channel comes off pause. + */ + debug3("%s: chan %d: skip for %d more seconds", + __func__, c->self, + (int)(c->notbefore - now)); + if (*unpause_secs == 0 || + (c->notbefore - now) < *unpause_secs) + *unpause_secs = c->notbefore - now; + } + } channel_garbage_collect(c); } + if (unpause_secs != NULL && *unpause_secs != 0) + debug3("%s: first channel unpauses in %d seconds", + __func__, (int)*unpause_secs); } /* @@ -2099,7 +2140,7 @@ channel_handler(chan_fn *ftab[], fd_set *readset, fd_set *writeset) */ void channel_prepare_select(fd_set **readsetp, fd_set **writesetp, int *maxfdp, - u_int *nallocp, int rekeying) + u_int *nallocp, time_t *minwait_secs, int rekeying) { u_int n, sz, nfdset; @@ -2122,7 +2163,8 @@ channel_prepare_select(fd_set **readsetp, fd_set **writesetp, int *maxfdp, memset(*writesetp, 0, sz); if (!rekeying) - channel_handler(channel_pre, *readsetp, *writesetp); + channel_handler(channel_pre, *readsetp, *writesetp, + minwait_secs); } /* @@ -2132,7 +2174,7 @@ channel_prepare_select(fd_set **readsetp, fd_set **writesetp, int *maxfdp, void channel_after_select(fd_set *readset, fd_set *writeset) { - channel_handler(channel_post, readset, writeset); + channel_handler(channel_post, readset, writeset, NULL); } @@ -2183,7 +2225,7 @@ channel_output_poll(void) debug("channel %d: datagram " "too big for channel", c->self); - xfree(data); + free(data); continue; } packet_start(SSH2_MSG_CHANNEL_DATA); @@ -2191,7 +2233,7 @@ channel_output_poll(void) packet_put_string(data, dlen); packet_send(); c->remote_window -= dlen + 4; - xfree(data); + free(data); } continue; } @@ -2363,13 +2405,13 @@ channel_input_extended_data(int type, u_int32_t seq, void *ctxt) if (data_len > c->local_window) { logit("channel %d: rcvd too much extended_data %d, win %d", c->self, data_len, c->local_window); - xfree(data); + free(data); return; } debug2("channel %d: rcvd ext data %d", c->self, data_len); c->local_window -= data_len; buffer_append(&c->extended, data, data_len); - xfree(data); + free(data); } /* ARGSUSED */ @@ -2459,7 +2501,7 @@ channel_input_close_confirmation(int type, u_int32_t seq, void *ctxt) if (c == NULL) packet_disconnect("Received close confirmation for " "out-of-range channel %d.", id); - if (c->type != SSH_CHANNEL_CLOSED) + if (c->type != SSH_CHANNEL_CLOSED && c->type != SSH_CHANNEL_ABANDONED) packet_disconnect("Received close confirmation for " "non-closed channel %d (type %d).", id, c->type); channel_free(c); @@ -2535,10 +2577,8 @@ channel_input_open_failure(int type, u_int32_t seq, void *ctxt) } logit("channel %d: open failed: %s%s%s", id, reason2txt(reason), msg ? ": ": "", msg ? msg : ""); - if (msg != NULL) - xfree(msg); - if (lang != NULL) - xfree(lang); + free(msg); + free(lang); if (c->open_confirm) { debug2("callback start"); c->open_confirm(c->self, 0, c->open_confirm_ctx); @@ -2596,8 +2636,8 @@ channel_input_port_open(int type, u_int32_t seq, void *ctxt) packet_check_eom(); c = channel_connect_to(host, host_port, "connected socket", originator_string); - xfree(originator_string); - xfree(host); + free(originator_string); + free(host); if (c == NULL) { packet_start(SSH_MSG_CHANNEL_OPEN_FAILURE); packet_put_int(remote_id); @@ -2632,7 +2672,7 @@ channel_input_status_confirm(int type, u_int32_t seq, void *ctxt) cc->cb(type, c, cc->ctx); TAILQ_REMOVE(&c->status_confirms, cc, entry); bzero(cc, sizeof(*cc)); - xfree(cc); + free(cc); } /* -- tcp forwarding */ @@ -2673,8 +2713,20 @@ channel_fwd_bind_addr(const char *listen_addr, int *wildcardp, if (((datafellows & SSH_OLD_FORWARD_ADDR) && strcmp(listen_addr, "0.0.0.0") == 0 && is_client == 0) || *listen_addr == '\0' || strcmp(listen_addr, "*") == 0 || - (!is_client && gateway_ports == 1)) + (!is_client && gateway_ports == 1)) { wildcard = 1; + /* + * Notify client if they requested a specific listen + * address and it was overridden. + */ + if (*listen_addr != '\0' && + strcmp(listen_addr, "0.0.0.0") != 0 && + strcmp(listen_addr, "*") != 0) { + packet_send_debug("Forwarding listen address " + "\"%s\" overridden by server " + "GatewayPorts", listen_addr); + } + } else if (strcmp(listen_addr, "localhost") != 0) addr = listen_addr; } @@ -3012,7 +3064,7 @@ channel_request_rforward_cancel(const char *host, u_short port) permitted_opens[i].listen_port = 0; permitted_opens[i].port_to_connect = 0; - xfree(permitted_opens[i].host_to_connect); + free(permitted_opens[i].host_to_connect); permitted_opens[i].host_to_connect = NULL; return 0; @@ -3053,7 +3105,7 @@ channel_input_port_forward_request(int is_root, int gateway_ports) host_port, gateway_ports); /* Free the argument string. */ - xfree(hostname); + free(hostname); return (success ? 0 : -1); } @@ -3108,7 +3160,7 @@ channel_update_permitted_opens(int idx, int newport) } else { permitted_opens[idx].listen_port = 0; permitted_opens[idx].port_to_connect = 0; - xfree(permitted_opens[idx].host_to_connect); + free(permitted_opens[idx].host_to_connect); permitted_opens[idx].host_to_connect = NULL; } } @@ -3127,17 +3179,23 @@ channel_add_adm_permitted_opens(char *host, int port) } void +channel_disable_adm_local_opens(void) +{ + channel_clear_adm_permitted_opens(); + permitted_adm_opens = xmalloc(sizeof(*permitted_adm_opens)); + permitted_adm_opens[num_adm_permitted_opens].host_to_connect = NULL; + num_adm_permitted_opens = 1; +} + +void channel_clear_permitted_opens(void) { int i; for (i = 0; i < num_permitted_opens; i++) - if (permitted_opens[i].host_to_connect != NULL) - xfree(permitted_opens[i].host_to_connect); - if (num_permitted_opens > 0) { - xfree(permitted_opens); - permitted_opens = NULL; - } + free(permitted_opens[i].host_to_connect); + free(permitted_opens); + permitted_opens = NULL; num_permitted_opens = 0; } @@ -3147,12 +3205,9 @@ channel_clear_adm_permitted_opens(void) int i; for (i = 0; i < num_adm_permitted_opens; i++) - if (permitted_adm_opens[i].host_to_connect != NULL) - xfree(permitted_adm_opens[i].host_to_connect); - if (num_adm_permitted_opens > 0) { - xfree(permitted_adm_opens); - permitted_adm_opens = NULL; - } + free(permitted_adm_opens[i].host_to_connect); + free(permitted_adm_opens); + permitted_adm_opens = NULL; num_adm_permitted_opens = 0; } @@ -3167,7 +3222,9 @@ channel_print_adm_permitted_opens(void) return; } for (i = 0; i < num_adm_permitted_opens; i++) - if (permitted_adm_opens[i].host_to_connect != NULL) + if (permitted_adm_opens[i].host_to_connect == NULL) + printf(" none"); + else printf(" %s:%d", permitted_adm_opens[i].host_to_connect, permitted_adm_opens[i].port_to_connect); printf("\n"); @@ -3244,7 +3301,7 @@ connect_next(struct channel_connect *cctx) static void channel_connect_ctx_free(struct channel_connect *cctx) { - xfree(cctx->host); + free(cctx->host); if (cctx->aitop) freeaddrinfo(cctx->aitop); bzero(cctx, sizeof(*cctx)); @@ -3639,7 +3696,7 @@ x11_input_open(int type, u_int32_t seq, void *ctxt) c->remote_id = remote_id; c->force_drain = 1; } - xfree(remote_host); + free(remote_host); if (c == NULL) { /* Send refusal to the remote host. */ packet_start(SSH_MSG_CHANNEL_OPEN_FAILURE); @@ -3747,7 +3804,7 @@ x11_request_forwarding_with_spoofing(int client_session_id, const char *disp, packet_put_int(screen_number); packet_send(); packet_write_wait(); - xfree(new_data); + free(new_data); } @@ -1,4 +1,4 @@ -/* $OpenBSD: channels.h,v 1.109 2011/09/23 07:45:05 markus Exp $ */ +/* $OpenBSD: channels.h,v 1.113 2013/06/07 15:37:52 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -55,7 +55,8 @@ #define SSH_CHANNEL_ZOMBIE 14 /* Almost dead. */ #define SSH_CHANNEL_MUX_LISTENER 15 /* Listener for mux conn. */ #define SSH_CHANNEL_MUX_CLIENT 16 /* Conn. to mux slave */ -#define SSH_CHANNEL_MAX_TYPE 17 +#define SSH_CHANNEL_ABANDONED 17 /* Abandoned session, eg mux */ +#define SSH_CHANNEL_MAX_TYPE 18 #define CHANNEL_CANCEL_PORT_STATIC -1 @@ -102,14 +103,17 @@ struct Channel { int sock; /* sock fd */ int ctl_chan; /* control channel (multiplexed connections) */ int isatty; /* rfd is a tty */ +#ifdef _AIX int wfd_isatty; /* wfd is a tty */ +#endif int client_tty; /* (client) TTY has been requested */ int force_drain; /* force close on iEOF */ + time_t notbefore; /* Pause IO until deadline (time_t) */ int delayed; /* post-select handlers for newly created * channels are delayed until the first call * to a matching pre-select handler. * this way post-select handlers are not - * accidenly called if a FD gets reused */ + * accidentally called if a FD gets reused */ Buffer input; /* data read from socket, to be sent over * encrypted connection */ Buffer output; /* data received over encrypted connection for @@ -238,7 +242,8 @@ void channel_input_status_confirm(int, u_int32_t, void *); /* file descriptor handling (read/write) */ -void channel_prepare_select(fd_set **, fd_set **, int *, u_int*, int); +void channel_prepare_select(fd_set **, fd_set **, int *, u_int*, + time_t*, int); void channel_after_select(fd_set *, fd_set *); void channel_output_poll(void); @@ -253,6 +258,7 @@ void channel_set_af(int af); void channel_permit_all_opens(void); void channel_add_permitted_opens(char *, int); int channel_add_adm_permitted_opens(char *, int); +void channel_disable_adm_local_opens(void); void channel_update_permitted_opens(int, int); void channel_clear_permitted_opens(void); void channel_clear_adm_permitted_opens(void); diff --git a/cipher-3des1.c b/cipher-3des1.c index b7aa588c..c8a70244 100644 --- a/cipher-3des1.c +++ b/cipher-3des1.c @@ -1,4 +1,4 @@ -/* $OpenBSD: cipher-3des1.c,v 1.7 2010/10/01 23:05:32 djm Exp $ */ +/* $OpenBSD: cipher-3des1.c,v 1.8 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2003 Markus Friedl. All rights reserved. * @@ -94,7 +94,7 @@ ssh1_3des_init(EVP_CIPHER_CTX *ctx, const u_char *key, const u_char *iv, EVP_CipherInit(&c->k2, EVP_des_cbc(), k2, NULL, !enc) == 0 || EVP_CipherInit(&c->k3, EVP_des_cbc(), k3, NULL, enc) == 0) { memset(c, 0, sizeof(*c)); - xfree(c); + free(c); EVP_CIPHER_CTX_set_app_data(ctx, NULL); return (0); } @@ -135,7 +135,7 @@ ssh1_3des_cleanup(EVP_CIPHER_CTX *ctx) EVP_CIPHER_CTX_cleanup(&c->k2); EVP_CIPHER_CTX_cleanup(&c->k3); memset(c, 0, sizeof(*c)); - xfree(c); + free(c); EVP_CIPHER_CTX_set_app_data(ctx, NULL); } return (1); diff --git a/cipher-acss.c b/cipher-acss.c deleted file mode 100644 index e755f92b..00000000 --- a/cipher-acss.c +++ /dev/null @@ -1,86 +0,0 @@ -/* - * Copyright (c) 2004 The OpenBSD project - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include "includes.h" - -#include <openssl/evp.h> - -#include <string.h> - -#if !defined(EVP_CTRL_SET_ACSS_MODE) && (OPENSSL_VERSION_NUMBER >= 0x00907000L) - -#include "acss.h" -#include "openbsd-compat/openssl-compat.h" - -#define data(ctx) ((EVP_ACSS_KEY *)(ctx)->cipher_data) - -typedef struct { - ACSS_KEY ks; -} EVP_ACSS_KEY; - -#define EVP_CTRL_SET_ACSS_MODE 0xff06 -#define EVP_CTRL_SET_ACSS_SUBKEY 0xff07 - -static int -acss_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) -{ - acss_setkey(&data(ctx)->ks,key,enc,ACSS_DATA); - return 1; -} - -static int -acss_ciph(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, - LIBCRYPTO_EVP_INL_TYPE inl) -{ - acss(&data(ctx)->ks,inl,in,out); - return 1; -} - -static int -acss_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr) -{ - switch(type) { - case EVP_CTRL_SET_ACSS_MODE: - data(ctx)->ks.mode = arg; - return 1; - case EVP_CTRL_SET_ACSS_SUBKEY: - acss_setsubkey(&data(ctx)->ks,(unsigned char *)ptr); - return 1; - default: - return -1; - } -} - -const EVP_CIPHER * -evp_acss(void) -{ - static EVP_CIPHER acss_cipher; - - memset(&acss_cipher, 0, sizeof(EVP_CIPHER)); - - acss_cipher.nid = NID_undef; - acss_cipher.block_size = 1; - acss_cipher.key_len = 5; - acss_cipher.init = acss_init_key; - acss_cipher.do_cipher = acss_ciph; - acss_cipher.ctx_size = sizeof(EVP_ACSS_KEY); - acss_cipher.ctrl = acss_ctrl; - - return (&acss_cipher); -} -#endif - diff --git a/cipher-aes.c b/cipher-aes.c index bfda6d2f..8b101727 100644 --- a/cipher-aes.c +++ b/cipher-aes.c @@ -46,9 +46,6 @@ struct ssh_rijndael_ctx u_char r_iv[RIJNDAEL_BLOCKSIZE]; }; -const EVP_CIPHER * evp_rijndael(void); -void ssh_rijndael_iv(EVP_CIPHER_CTX *, int, u_char *, u_int); - static int ssh_rijndael_init(EVP_CIPHER_CTX *ctx, const u_char *key, const u_char *iv, int enc) @@ -123,7 +120,7 @@ ssh_rijndael_cleanup(EVP_CIPHER_CTX *ctx) if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) != NULL) { memset(c, 0, sizeof(*c)); - xfree(c); + free(c); EVP_CIPHER_CTX_set_app_data(ctx, NULL); } return (1); diff --git a/cipher-chachapoly.c b/cipher-chachapoly.c new file mode 100644 index 00000000..91b0830f --- /dev/null +++ b/cipher-chachapoly.c @@ -0,0 +1,114 @@ +/* + * Copyright (c) 2013 Damien Miller <djm@mindrot.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* $OpenBSD: cipher-chachapoly.c,v 1.3 2013/12/15 21:42:35 djm Exp $ */ + +#include "includes.h" + +#include <sys/types.h> +#include <stdarg.h> /* needed for log.h */ +#include <string.h> +#include <stdio.h> /* needed for misc.h */ + +#include "log.h" +#include "misc.h" +#include "cipher-chachapoly.h" + +void chachapoly_init(struct chachapoly_ctx *ctx, + const u_char *key, u_int keylen) +{ + if (keylen != (32 + 32)) /* 2 x 256 bit keys */ + fatal("%s: invalid keylen %u", __func__, keylen); + chacha_keysetup(&ctx->main_ctx, key, 256); + chacha_keysetup(&ctx->header_ctx, key + 32, 256); +} + +/* + * chachapoly_crypt() operates as following: + * En/decrypt with header key 'aadlen' bytes from 'src', storing result + * to 'dest'. The ciphertext here is treated as additional authenticated + * data for MAC calculation. + * En/decrypt 'len' bytes at offset 'aadlen' from 'src' to 'dest'. Use + * POLY1305_TAGLEN bytes at offset 'len'+'aadlen' as the authentication + * tag. This tag is written on encryption and verified on decryption. + */ +int +chachapoly_crypt(struct chachapoly_ctx *ctx, u_int seqnr, u_char *dest, + const u_char *src, u_int len, u_int aadlen, u_int authlen, int do_encrypt) +{ + u_char seqbuf[8]; + const u_char one[8] = { 1, 0, 0, 0, 0, 0, 0, 0 }; /* NB little-endian */ + u_char expected_tag[POLY1305_TAGLEN], poly_key[POLY1305_KEYLEN]; + int r = -1; + + /* + * Run ChaCha20 once to generate the Poly1305 key. The IV is the + * packet sequence number. + */ + bzero(poly_key, sizeof(poly_key)); + put_u64(seqbuf, seqnr); + chacha_ivsetup(&ctx->main_ctx, seqbuf, NULL); + chacha_encrypt_bytes(&ctx->main_ctx, + poly_key, poly_key, sizeof(poly_key)); + /* Set Chacha's block counter to 1 */ + chacha_ivsetup(&ctx->main_ctx, seqbuf, one); + + /* If decrypting, check tag before anything else */ + if (!do_encrypt) { + const u_char *tag = src + aadlen + len; + + poly1305_auth(expected_tag, src, aadlen + len, poly_key); + if (timingsafe_bcmp(expected_tag, tag, POLY1305_TAGLEN) != 0) + goto out; + } + /* Crypt additional data */ + if (aadlen) { + chacha_ivsetup(&ctx->header_ctx, seqbuf, NULL); + chacha_encrypt_bytes(&ctx->header_ctx, src, dest, aadlen); + } + chacha_encrypt_bytes(&ctx->main_ctx, src + aadlen, + dest + aadlen, len); + + /* If encrypting, calculate and append tag */ + if (do_encrypt) { + poly1305_auth(dest + aadlen + len, dest, aadlen + len, + poly_key); + } + r = 0; + + out: + bzero(expected_tag, sizeof(expected_tag)); + bzero(seqbuf, sizeof(seqbuf)); + bzero(poly_key, sizeof(poly_key)); + return r; +} + +/* Decrypt and extract the encrypted packet length */ +int +chachapoly_get_length(struct chachapoly_ctx *ctx, + u_int *plenp, u_int seqnr, const u_char *cp, u_int len) +{ + u_char buf[4], seqbuf[8]; + + if (len < 4) + return -1; /* Insufficient length */ + put_u64(seqbuf, seqnr); + chacha_ivsetup(&ctx->header_ctx, seqbuf, NULL); + chacha_encrypt_bytes(&ctx->header_ctx, cp, buf, 4); + *plenp = get_u32(buf); + return 0; +} + diff --git a/cipher-chachapoly.h b/cipher-chachapoly.h new file mode 100644 index 00000000..1628693b --- /dev/null +++ b/cipher-chachapoly.h @@ -0,0 +1,41 @@ +/* $OpenBSD: cipher-chachapoly.h,v 1.1 2013/11/21 00:45:44 djm Exp $ */ + +/* + * Copyright (c) Damien Miller 2013 <djm@mindrot.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +#ifndef CHACHA_POLY_AEAD_H +#define CHACHA_POLY_AEAD_H + +#include <sys/types.h> +#include "chacha.h" +#include "poly1305.h" + +#define CHACHA_KEYLEN 32 /* Only 256 bit keys used here */ + +struct chachapoly_ctx { + struct chacha_ctx main_ctx, header_ctx; +}; + +void chachapoly_init(struct chachapoly_ctx *cpctx, + const u_char *key, u_int keylen) + __attribute__((__bounded__(__buffer__, 2, 3))); +int chachapoly_crypt(struct chachapoly_ctx *cpctx, u_int seqnr, + u_char *dest, const u_char *src, u_int len, u_int aadlen, u_int authlen, + int do_encrypt); +int chachapoly_get_length(struct chachapoly_ctx *cpctx, + u_int *plenp, u_int seqnr, const u_char *cp, u_int len) + __attribute__((__bounded__(__buffer__, 4, 5))); + +#endif /* CHACHA_POLY_AEAD_H */ diff --git a/cipher-ctr.c b/cipher-ctr.c index 04975b4b..ea0f9b3b 100644 --- a/cipher-ctr.c +++ b/cipher-ctr.c @@ -16,6 +16,7 @@ */ #include "includes.h" +#ifndef OPENSSL_HAVE_EVPCTR #include <sys/types.h> #include <stdarg.h> @@ -33,9 +34,6 @@ #include <openssl/aes.h> #endif -const EVP_CIPHER *evp_aes_128_ctr(void); -void ssh_aes_ctr_iv(EVP_CIPHER_CTX *, int, u_char *, size_t); - struct ssh_aes_ctr_ctx { AES_KEY aes_ctx; @@ -106,7 +104,7 @@ ssh_aes_ctr_cleanup(EVP_CIPHER_CTX *ctx) if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) != NULL) { memset(c, 0, sizeof(*c)); - xfree(c); + free(c); EVP_CIPHER_CTX_set_app_data(ctx, NULL); } return (1); @@ -144,3 +142,5 @@ evp_aes_128_ctr(void) #endif return (&aes_ctr); } + +#endif /* OPENSSL_HAVE_EVPCTR */ @@ -1,4 +1,4 @@ -/* $OpenBSD: cipher.c,v 1.82 2009/01/26 09:58:15 markus Exp $ */ +/* $OpenBSD: cipher.c,v 1.94 2014/01/25 10:12:50 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -43,9 +43,11 @@ #include <string.h> #include <stdarg.h> +#include <stdio.h> #include "xmalloc.h" #include "log.h" +#include "misc.h" #include "cipher.h" /* compatibility with old or broken OpenSSL versions */ @@ -54,45 +56,79 @@ extern const EVP_CIPHER *evp_ssh1_bf(void); extern const EVP_CIPHER *evp_ssh1_3des(void); extern void ssh1_3des_iv(EVP_CIPHER_CTX *, int, u_char *, int); -extern const EVP_CIPHER *evp_aes_128_ctr(void); -extern void ssh_aes_ctr_iv(EVP_CIPHER_CTX *, int, u_char *, u_int); struct Cipher { char *name; int number; /* for ssh1 only */ u_int block_size; u_int key_len; + u_int iv_len; /* defaults to block_size */ + u_int auth_len; u_int discard_len; - u_int cbc_mode; + u_int flags; +#define CFLAG_CBC (1<<0) +#define CFLAG_CHACHAPOLY (1<<1) const EVP_CIPHER *(*evptype)(void); -} ciphers[] = { - { "none", SSH_CIPHER_NONE, 8, 0, 0, 0, EVP_enc_null }, - { "des", SSH_CIPHER_DES, 8, 8, 0, 1, EVP_des_cbc }, - { "3des", SSH_CIPHER_3DES, 8, 16, 0, 1, evp_ssh1_3des }, - { "blowfish", SSH_CIPHER_BLOWFISH, 8, 32, 0, 1, evp_ssh1_bf }, - - { "3des-cbc", SSH_CIPHER_SSH2, 8, 24, 0, 1, EVP_des_ede3_cbc }, - { "blowfish-cbc", SSH_CIPHER_SSH2, 8, 16, 0, 1, EVP_bf_cbc }, - { "cast128-cbc", SSH_CIPHER_SSH2, 8, 16, 0, 1, EVP_cast5_cbc }, - { "arcfour", SSH_CIPHER_SSH2, 8, 16, 0, 0, EVP_rc4 }, - { "arcfour128", SSH_CIPHER_SSH2, 8, 16, 1536, 0, EVP_rc4 }, - { "arcfour256", SSH_CIPHER_SSH2, 8, 32, 1536, 0, EVP_rc4 }, - { "aes128-cbc", SSH_CIPHER_SSH2, 16, 16, 0, 1, EVP_aes_128_cbc }, - { "aes192-cbc", SSH_CIPHER_SSH2, 16, 24, 0, 1, EVP_aes_192_cbc }, - { "aes256-cbc", SSH_CIPHER_SSH2, 16, 32, 0, 1, EVP_aes_256_cbc }, +}; + +static const struct Cipher ciphers[] = { + { "none", SSH_CIPHER_NONE, 8, 0, 0, 0, 0, 0, EVP_enc_null }, + { "des", SSH_CIPHER_DES, 8, 8, 0, 0, 0, 1, EVP_des_cbc }, + { "3des", SSH_CIPHER_3DES, 8, 16, 0, 0, 0, 1, evp_ssh1_3des }, + { "blowfish", SSH_CIPHER_BLOWFISH, 8, 32, 0, 0, 0, 1, evp_ssh1_bf }, + + { "3des-cbc", SSH_CIPHER_SSH2, 8, 24, 0, 0, 0, 1, EVP_des_ede3_cbc }, + { "blowfish-cbc", + SSH_CIPHER_SSH2, 8, 16, 0, 0, 0, 1, EVP_bf_cbc }, + { "cast128-cbc", + SSH_CIPHER_SSH2, 8, 16, 0, 0, 0, 1, EVP_cast5_cbc }, + { "arcfour", SSH_CIPHER_SSH2, 8, 16, 0, 0, 0, 0, EVP_rc4 }, + { "arcfour128", SSH_CIPHER_SSH2, 8, 16, 0, 0, 1536, 0, EVP_rc4 }, + { "arcfour256", SSH_CIPHER_SSH2, 8, 32, 0, 0, 1536, 0, EVP_rc4 }, + { "aes128-cbc", SSH_CIPHER_SSH2, 16, 16, 0, 0, 0, 1, EVP_aes_128_cbc }, + { "aes192-cbc", SSH_CIPHER_SSH2, 16, 24, 0, 0, 0, 1, EVP_aes_192_cbc }, + { "aes256-cbc", SSH_CIPHER_SSH2, 16, 32, 0, 0, 0, 1, EVP_aes_256_cbc }, { "rijndael-cbc@lysator.liu.se", - SSH_CIPHER_SSH2, 16, 32, 0, 1, EVP_aes_256_cbc }, - { "aes128-ctr", SSH_CIPHER_SSH2, 16, 16, 0, 0, evp_aes_128_ctr }, - { "aes192-ctr", SSH_CIPHER_SSH2, 16, 24, 0, 0, evp_aes_128_ctr }, - { "aes256-ctr", SSH_CIPHER_SSH2, 16, 32, 0, 0, evp_aes_128_ctr }, -#ifdef USE_CIPHER_ACSS - { "acss@openssh.org", SSH_CIPHER_SSH2, 16, 5, 0, 0, EVP_acss }, + SSH_CIPHER_SSH2, 16, 32, 0, 0, 0, 1, EVP_aes_256_cbc }, + { "aes128-ctr", SSH_CIPHER_SSH2, 16, 16, 0, 0, 0, 0, EVP_aes_128_ctr }, + { "aes192-ctr", SSH_CIPHER_SSH2, 16, 24, 0, 0, 0, 0, EVP_aes_192_ctr }, + { "aes256-ctr", SSH_CIPHER_SSH2, 16, 32, 0, 0, 0, 0, EVP_aes_256_ctr }, +#ifdef OPENSSL_HAVE_EVPGCM + { "aes128-gcm@openssh.com", + SSH_CIPHER_SSH2, 16, 16, 12, 16, 0, 0, EVP_aes_128_gcm }, + { "aes256-gcm@openssh.com", + SSH_CIPHER_SSH2, 16, 32, 12, 16, 0, 0, EVP_aes_256_gcm }, #endif - { NULL, SSH_CIPHER_INVALID, 0, 0, 0, 0, NULL } + { "chacha20-poly1305@openssh.com", + SSH_CIPHER_SSH2, 8, 64, 0, 16, 0, CFLAG_CHACHAPOLY, NULL }, + { NULL, SSH_CIPHER_INVALID, 0, 0, 0, 0, 0, 0, NULL } }; /*--*/ +/* Returns a list of supported ciphers separated by the specified char. */ +char * +cipher_alg_list(char sep, int auth_only) +{ + char *ret = NULL; + size_t nlen, rlen = 0; + const Cipher *c; + + for (c = ciphers; c->name != NULL; c++) { + if (c->number != SSH_CIPHER_SSH2) + continue; + if (auth_only && c->auth_len == 0) + continue; + if (ret != NULL) + ret[rlen++] = sep; + nlen = strlen(c->name); + ret = xrealloc(ret, 1, rlen + nlen + 2); + memcpy(ret + rlen, c->name, nlen + 1); + rlen += nlen; + } + return ret; +} + u_int cipher_blocksize(const Cipher *c) { @@ -106,6 +142,31 @@ cipher_keylen(const Cipher *c) } u_int +cipher_seclen(const Cipher *c) +{ + if (strcmp("3des-cbc", c->name) == 0) + return 14; + return cipher_keylen(c); +} + +u_int +cipher_authlen(const Cipher *c) +{ + return (c->auth_len); +} + +u_int +cipher_ivlen(const Cipher *c) +{ + /* + * Default is cipher block size, except for chacha20+poly1305 that + * needs no IV. XXX make iv_len == -1 default? + */ + return (c->iv_len != 0 || (c->flags & CFLAG_CHACHAPOLY) != 0) ? + c->iv_len : c->block_size; +} + +u_int cipher_get_number(const Cipher *c) { return (c->number); @@ -114,7 +175,7 @@ cipher_get_number(const Cipher *c) u_int cipher_is_cbc(const Cipher *c) { - return (c->cbc_mode); + return (c->flags & CFLAG_CBC) != 0; } u_int @@ -129,20 +190,20 @@ cipher_mask_ssh1(int client) return mask; } -Cipher * +const Cipher * cipher_by_name(const char *name) { - Cipher *c; + const Cipher *c; for (c = ciphers; c->name != NULL; c++) if (strcmp(c->name, name) == 0) return c; return NULL; } -Cipher * +const Cipher * cipher_by_number(int id) { - Cipher *c; + const Cipher *c; for (c = ciphers; c->name != NULL; c++) if (c->number == id) return c; @@ -153,7 +214,7 @@ cipher_by_number(int id) int ciphers_valid(const char *names) { - Cipher *c; + const Cipher *c; char *cipher_list, *cp; char *p; @@ -165,14 +226,14 @@ ciphers_valid(const char *names) c = cipher_by_name(p); if (c == NULL || c->number != SSH_CIPHER_SSH2) { debug("bad cipher %s [%s]", p, names); - xfree(cipher_list); + free(cipher_list); return 0; } else { debug3("cipher ok: %s [%s]", p, names); } } debug3("ciphers ok: [%s]", names); - xfree(cipher_list); + free(cipher_list); return 1; } @@ -184,7 +245,7 @@ ciphers_valid(const char *names) int cipher_number(const char *name) { - Cipher *c; + const Cipher *c; if (name == NULL) return -1; for (c = ciphers; c->name != NULL; c++) @@ -196,12 +257,12 @@ cipher_number(const char *name) char * cipher_name(int id) { - Cipher *c = cipher_by_number(id); + const Cipher *c = cipher_by_number(id); return (c==NULL) ? "<unknown>" : c->name; } void -cipher_init(CipherContext *cc, Cipher *cipher, +cipher_init(CipherContext *cc, const Cipher *cipher, const u_char *key, u_int keylen, const u_char *iv, u_int ivlen, int do_encrypt) { @@ -224,17 +285,21 @@ cipher_init(CipherContext *cc, Cipher *cipher, keylen = 8; } cc->plaintext = (cipher->number == SSH_CIPHER_NONE); + cc->encrypt = do_encrypt; if (keylen < cipher->key_len) fatal("cipher_init: key length %d is insufficient for %s.", keylen, cipher->name); - if (iv != NULL && ivlen < cipher->block_size) + if (iv != NULL && ivlen < cipher_ivlen(cipher)) fatal("cipher_init: iv length %d is insufficient for %s.", ivlen, cipher->name); cc->cipher = cipher; + if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0) { + chachapoly_init(&cc->cp_ctx, key, keylen); + return; + } type = (*cipher->evptype)(); - EVP_CIPHER_CTX_init(&cc->evp); #ifdef SSH_OLD_EVP if (type->key_len > 0 && type->key_len != keylen) { @@ -249,6 +314,11 @@ cipher_init(CipherContext *cc, Cipher *cipher, (do_encrypt == CIPHER_ENCRYPT)) == 0) fatal("cipher_init: EVP_CipherInit failed for %s", cipher->name); + if (cipher_authlen(cipher) && + !EVP_CIPHER_CTX_ctrl(&cc->evp, EVP_CTRL_GCM_SET_IV_FIXED, + -1, (u_char *)iv)) + fatal("cipher_init: EVP_CTRL_GCM_SET_IV_FIXED failed for %s", + cipher->name); klen = EVP_CIPHER_CTX_key_length(&cc->evp); if (klen > 0 && keylen != (u_int)klen) { debug2("cipher_init: set keylen (%d -> %d)", klen, keylen); @@ -268,24 +338,92 @@ cipher_init(CipherContext *cc, Cipher *cipher, cipher->discard_len) == 0) fatal("evp_crypt: EVP_Cipher failed during discard"); memset(discard, 0, cipher->discard_len); - xfree(junk); - xfree(discard); + free(junk); + free(discard); } } -void -cipher_crypt(CipherContext *cc, u_char *dest, const u_char *src, u_int len) +/* + * cipher_crypt() operates as following: + * Copy 'aadlen' bytes (without en/decryption) from 'src' to 'dest'. + * Theses bytes are treated as additional authenticated data for + * authenticated encryption modes. + * En/Decrypt 'len' bytes at offset 'aadlen' from 'src' to 'dest'. + * Use 'authlen' bytes at offset 'len'+'aadlen' as the authentication tag. + * This tag is written on encryption and verified on decryption. + * Both 'aadlen' and 'authlen' can be set to 0. + * cipher_crypt() returns 0 on success and -1 if the decryption integrity + * check fails. + */ +int +cipher_crypt(CipherContext *cc, u_int seqnr, u_char *dest, const u_char *src, + u_int len, u_int aadlen, u_int authlen) { + if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0) + return chachapoly_crypt(&cc->cp_ctx, seqnr, dest, src, len, + aadlen, authlen, cc->encrypt); + if (authlen) { + u_char lastiv[1]; + + if (authlen != cipher_authlen(cc->cipher)) + fatal("%s: authlen mismatch %d", __func__, authlen); + /* increment IV */ + if (!EVP_CIPHER_CTX_ctrl(&cc->evp, EVP_CTRL_GCM_IV_GEN, + 1, lastiv)) + fatal("%s: EVP_CTRL_GCM_IV_GEN", __func__); + /* set tag on decyption */ + if (!cc->encrypt && + !EVP_CIPHER_CTX_ctrl(&cc->evp, EVP_CTRL_GCM_SET_TAG, + authlen, (u_char *)src + aadlen + len)) + fatal("%s: EVP_CTRL_GCM_SET_TAG", __func__); + } + if (aadlen) { + if (authlen && + EVP_Cipher(&cc->evp, NULL, (u_char *)src, aadlen) < 0) + fatal("%s: EVP_Cipher(aad) failed", __func__); + memcpy(dest, src, aadlen); + } if (len % cc->cipher->block_size) - fatal("cipher_encrypt: bad plaintext length %d", len); - if (EVP_Cipher(&cc->evp, dest, (u_char *)src, len) == 0) - fatal("evp_crypt: EVP_Cipher failed"); + fatal("%s: bad plaintext length %d", __func__, len); + if (EVP_Cipher(&cc->evp, dest + aadlen, (u_char *)src + aadlen, + len) < 0) + fatal("%s: EVP_Cipher failed", __func__); + if (authlen) { + /* compute tag (on encrypt) or verify tag (on decrypt) */ + if (EVP_Cipher(&cc->evp, NULL, NULL, 0) < 0) { + if (cc->encrypt) + fatal("%s: EVP_Cipher(final) failed", __func__); + else + return -1; + } + if (cc->encrypt && + !EVP_CIPHER_CTX_ctrl(&cc->evp, EVP_CTRL_GCM_GET_TAG, + authlen, dest + aadlen + len)) + fatal("%s: EVP_CTRL_GCM_GET_TAG", __func__); + } + return 0; +} + +/* Extract the packet length, including any decryption necessary beforehand */ +int +cipher_get_length(CipherContext *cc, u_int *plenp, u_int seqnr, + const u_char *cp, u_int len) +{ + if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0) + return chachapoly_get_length(&cc->cp_ctx, plenp, seqnr, + cp, len); + if (len < 4) + return -1; + *plenp = get_u32(cp); + return 0; } void cipher_cleanup(CipherContext *cc) { - if (EVP_CIPHER_CTX_cleanup(&cc->evp) == 0) + if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0) + memset(&cc->cp_ctx, 0, sizeof(cc->cp_ctx)); + else if (EVP_CIPHER_CTX_cleanup(&cc->evp) == 0) error("cipher_cleanup: EVP_CIPHER_CTX_cleanup failed"); } @@ -295,7 +433,7 @@ cipher_cleanup(CipherContext *cc) */ void -cipher_set_key_string(CipherContext *cc, Cipher *cipher, +cipher_set_key_string(CipherContext *cc, const Cipher *cipher, const char *passphrase, int do_encrypt) { MD5_CTX md; @@ -320,11 +458,13 @@ cipher_set_key_string(CipherContext *cc, Cipher *cipher, int cipher_get_keyiv_len(const CipherContext *cc) { - Cipher *c = cc->cipher; + const Cipher *c = cc->cipher; int ivlen; if (c->number == SSH_CIPHER_3DES) ivlen = 24; + else if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0) + ivlen = 0; else ivlen = EVP_CIPHER_CTX_iv_length(&cc->evp); return (ivlen); @@ -333,9 +473,15 @@ cipher_get_keyiv_len(const CipherContext *cc) void cipher_get_keyiv(CipherContext *cc, u_char *iv, u_int len) { - Cipher *c = cc->cipher; + const Cipher *c = cc->cipher; int evplen; + if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0) { + if (len != 0) + fatal("%s: wrong iv length %d != %d", __func__, len, 0); + return; + } + switch (c->number) { case SSH_CIPHER_SSH2: case SSH_CIPHER_DES: @@ -351,10 +497,12 @@ cipher_get_keyiv(CipherContext *cc, u_char *iv, u_int len) ssh_rijndael_iv(&cc->evp, 0, iv, len); else #endif +#ifndef OPENSSL_HAVE_EVPCTR if (c->evptype == evp_aes_128_ctr) ssh_aes_ctr_iv(&cc->evp, 0, iv, len); else - memcpy(iv, cc->evp.iv, len); +#endif + memcpy(iv, cc->evp.iv, len); break; case SSH_CIPHER_3DES: ssh1_3des_iv(&cc->evp, 0, iv, 24); @@ -367,9 +515,12 @@ cipher_get_keyiv(CipherContext *cc, u_char *iv, u_int len) void cipher_set_keyiv(CipherContext *cc, u_char *iv) { - Cipher *c = cc->cipher; + const Cipher *c = cc->cipher; int evplen = 0; + if ((cc->cipher->flags & CFLAG_CHACHAPOLY) != 0) + return; + switch (c->number) { case SSH_CIPHER_SSH2: case SSH_CIPHER_DES: @@ -382,10 +533,12 @@ cipher_set_keyiv(CipherContext *cc, u_char *iv) ssh_rijndael_iv(&cc->evp, 1, iv, evplen); else #endif +#ifndef OPENSSL_HAVE_EVPCTR if (c->evptype == evp_aes_128_ctr) ssh_aes_ctr_iv(&cc->evp, 1, iv, evplen); else - memcpy(cc->evp.iv, iv, evplen); +#endif + memcpy(cc->evp.iv, iv, evplen); break; case SSH_CIPHER_3DES: ssh1_3des_iv(&cc->evp, 1, iv, 24); @@ -395,21 +548,13 @@ cipher_set_keyiv(CipherContext *cc, u_char *iv) } } -#if OPENSSL_VERSION_NUMBER < 0x00907000L -#define EVP_X_STATE(evp) &(evp).c -#define EVP_X_STATE_LEN(evp) sizeof((evp).c) -#else -#define EVP_X_STATE(evp) (evp).cipher_data -#define EVP_X_STATE_LEN(evp) (evp).cipher->ctx_size -#endif - int cipher_get_keycontext(const CipherContext *cc, u_char *dat) { - Cipher *c = cc->cipher; + const Cipher *c = cc->cipher; int plen = 0; - if (c->evptype == EVP_rc4 || c->evptype == EVP_acss) { + if (c->evptype == EVP_rc4) { plen = EVP_X_STATE_LEN(cc->evp); if (dat == NULL) return (plen); @@ -421,10 +566,10 @@ cipher_get_keycontext(const CipherContext *cc, u_char *dat) void cipher_set_keycontext(CipherContext *cc, u_char *dat) { - Cipher *c = cc->cipher; + const Cipher *c = cc->cipher; int plen; - if (c->evptype == EVP_rc4 || c->evptype == EVP_acss) { + if (c->evptype == EVP_rc4) { plen = EVP_X_STATE_LEN(cc->evp); memcpy(EVP_X_STATE(cc->evp), dat, plen); } @@ -1,4 +1,4 @@ -/* $OpenBSD: cipher.h,v 1.37 2009/01/26 09:58:15 markus Exp $ */ +/* $OpenBSD: cipher.h,v 1.44 2014/01/25 10:12:50 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -38,6 +38,8 @@ #define CIPHER_H #include <openssl/evp.h> +#include "cipher-chachapoly.h" + /* * Cipher types for SSH-1. New types can be added, but old types should not * be removed for compatibility. The maximum allowed value is 31. @@ -64,23 +66,32 @@ typedef struct CipherContext CipherContext; struct Cipher; struct CipherContext { int plaintext; + int encrypt; EVP_CIPHER_CTX evp; - Cipher *cipher; + struct chachapoly_ctx cp_ctx; /* XXX union with evp? */ + const Cipher *cipher; }; u_int cipher_mask_ssh1(int); -Cipher *cipher_by_name(const char *); -Cipher *cipher_by_number(int); +const Cipher *cipher_by_name(const char *); +const Cipher *cipher_by_number(int); int cipher_number(const char *); char *cipher_name(int); int ciphers_valid(const char *); -void cipher_init(CipherContext *, Cipher *, const u_char *, u_int, +char *cipher_alg_list(char, int); +void cipher_init(CipherContext *, const Cipher *, const u_char *, u_int, const u_char *, u_int, int); -void cipher_crypt(CipherContext *, u_char *, const u_char *, u_int); +int cipher_crypt(CipherContext *, u_int, u_char *, const u_char *, + u_int, u_int, u_int); +int cipher_get_length(CipherContext *, u_int *, u_int, + const u_char *, u_int); void cipher_cleanup(CipherContext *); -void cipher_set_key_string(CipherContext *, Cipher *, const char *, int); +void cipher_set_key_string(CipherContext *, const Cipher *, const char *, int); u_int cipher_blocksize(const Cipher *); u_int cipher_keylen(const Cipher *); +u_int cipher_seclen(const Cipher *); +u_int cipher_authlen(const Cipher *); +u_int cipher_ivlen(const Cipher *); u_int cipher_is_cbc(const Cipher *); u_int cipher_get_number(const Cipher *); diff --git a/clientloop.c b/clientloop.c index f69a9b02..f30c8b6b 100644 --- a/clientloop.c +++ b/clientloop.c @@ -1,4 +1,4 @@ -/* $OpenBSD: clientloop.c,v 1.238 2012/01/18 21:46:43 dtucker Exp $ */ +/* $OpenBSD: clientloop.c,v 1.256 2013/11/20 20:54:10 deraadt Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -273,7 +273,7 @@ set_control_persist_exit_time(void) control_persist_exit_time = 0; } else if (control_persist_exit_time <= 0) { /* a client connection has recently closed */ - control_persist_exit_time = time(NULL) + + control_persist_exit_time = monotime() + (time_t)options.control_persist_timeout; debug2("%s: schedule exit in %d seconds", __func__, options.control_persist_timeout); @@ -289,7 +289,7 @@ client_x11_display_valid(const char *display) dlen = strlen(display); for (i = 0; i < dlen; i++) { - if (!isalnum(display[i]) && + if (!isalnum((u_char)display[i]) && strchr(SSH_X11_VALID_DISPLAY_CHARS, display[i]) == NULL) { debug("Invalid character '%c' in DISPLAY", display[i]); return 0; @@ -356,7 +356,7 @@ client_x11_get_proto(const char *display, const char *xauth_path, if (system(cmd) == 0) generated = 1; if (x11_refuse_time == 0) { - now = time(NULL) + 1; + now = monotime() + 1; if (UINT_MAX - timeout < now) x11_refuse_time = UINT_MAX; else @@ -393,10 +393,8 @@ client_x11_get_proto(const char *display, const char *xauth_path, unlink(xauthfile); rmdir(xauthdir); } - if (xauthdir) - xfree(xauthdir); - if (xauthfile) - xfree(xauthfile); + free(xauthdir); + free(xauthfile); /* * If we didn't get authentication data, just make up some @@ -552,7 +550,7 @@ client_global_request_reply(int type, u_int32_t seq, void *ctxt) if (--gc->ref_count <= 0) { TAILQ_REMOVE(&global_confirms, gc, entry); bzero(gc, sizeof(*gc)); - xfree(gc); + free(gc); } packet_set_alive_timeouts(0); @@ -583,10 +581,12 @@ client_wait_until_can_do_something(fd_set **readsetp, fd_set **writesetp, { struct timeval tv, *tvp; int timeout_secs; + time_t minwait_secs = 0, server_alive_time = 0, now = monotime(); int ret; /* Add any selections by the channel mechanism. */ - channel_prepare_select(readsetp, writesetp, maxfdp, nallocp, rekeying); + channel_prepare_select(readsetp, writesetp, maxfdp, nallocp, + &minwait_secs, rekeying); if (!compat20) { /* Read from the connection, unless our buffers are full. */ @@ -630,15 +630,21 @@ client_wait_until_can_do_something(fd_set **readsetp, fd_set **writesetp, */ timeout_secs = INT_MAX; /* we use INT_MAX to mean no timeout */ - if (options.server_alive_interval > 0 && compat20) + if (options.server_alive_interval > 0 && compat20) { timeout_secs = options.server_alive_interval; + server_alive_time = now + options.server_alive_interval; + } + if (options.rekey_interval > 0 && compat20 && !rekeying) + timeout_secs = MIN(timeout_secs, packet_get_rekey_timeout()); set_control_persist_exit_time(); if (control_persist_exit_time > 0) { timeout_secs = MIN(timeout_secs, - control_persist_exit_time - time(NULL)); + control_persist_exit_time - now); if (timeout_secs < 0) timeout_secs = 0; } + if (minwait_secs != 0) + timeout_secs = MIN(timeout_secs, (int)minwait_secs); if (timeout_secs == INT_MAX) tvp = NULL; else { @@ -665,8 +671,15 @@ client_wait_until_can_do_something(fd_set **readsetp, fd_set **writesetp, snprintf(buf, sizeof buf, "select: %s\r\n", strerror(errno)); buffer_append(&stderr_buffer, buf, strlen(buf)); quit_pending = 1; - } else if (ret == 0) - server_alive_check(); + } else if (ret == 0) { + /* + * Timeout. Could have been either keepalive or rekeying. + * Keepalive we check here, rekeying is checked in clientloop. + */ + if (server_alive_time != 0 && server_alive_time <= monotime()) + server_alive_check(); + } + } static void @@ -811,20 +824,20 @@ client_status_confirm(int type, Channel *c, void *ctx) chan_write_failed(c); } } - xfree(cr); + free(cr); } static void client_abandon_status_confirm(Channel *c, void *ctx) { - xfree(ctx); + free(ctx); } void client_expect_confirm(int id, const char *request, enum confirm_action action) { - struct channel_reply_ctx *cr = xmalloc(sizeof(*cr)); + struct channel_reply_ctx *cr = xcalloc(1, sizeof(*cr)); cr->request_type = request; cr->action = action; @@ -847,7 +860,7 @@ client_register_global_confirm(global_confirm_cb *cb, void *ctx) return; } - gc = xmalloc(sizeof(*gc)); + gc = xcalloc(1, sizeof(*gc)); gc->cb = cb; gc->ctx = ctx; gc->ref_count = 1; @@ -871,7 +884,7 @@ process_cmdline(void) cmd = s = read_passphrase("\r\nssh> ", RP_ECHO); if (s == NULL) goto out; - while (isspace(*s)) + while (isspace((u_char)*s)) s++; if (*s == '-') s++; /* Skip cmdline '-', if any */ @@ -925,7 +938,7 @@ process_cmdline(void) goto out; } - while (isspace(*++s)) + while (isspace((u_char)*++s)) ; /* XXX update list of forwards in options */ @@ -964,9 +977,9 @@ process_cmdline(void) goto out; } if (local || dynamic) { - if (channel_setup_local_fwd_listener(fwd.listen_host, + if (!channel_setup_local_fwd_listener(fwd.listen_host, fwd.listen_port, fwd.connect_host, - fwd.connect_port, options.gateway_ports) < 0) { + fwd.connect_port, options.gateway_ports)) { logit("Port forwarding failed."); goto out; } @@ -984,12 +997,66 @@ process_cmdline(void) out: signal(SIGINT, handler); enter_raw_mode(options.request_tty == REQUEST_TTY_FORCE); - if (cmd) - xfree(cmd); - if (fwd.listen_host != NULL) - xfree(fwd.listen_host); - if (fwd.connect_host != NULL) - xfree(fwd.connect_host); + free(cmd); + free(fwd.listen_host); + free(fwd.connect_host); +} + +/* reasons to suppress output of an escape command in help output */ +#define SUPPRESS_NEVER 0 /* never suppress, always show */ +#define SUPPRESS_PROTO1 1 /* don't show in protocol 1 sessions */ +#define SUPPRESS_MUXCLIENT 2 /* don't show in mux client sessions */ +#define SUPPRESS_MUXMASTER 4 /* don't show in mux master sessions */ +#define SUPPRESS_SYSLOG 8 /* don't show when logging to syslog */ +struct escape_help_text { + const char *cmd; + const char *text; + unsigned int flags; +}; +static struct escape_help_text esc_txt[] = { + {".", "terminate session", SUPPRESS_MUXMASTER}, + {".", "terminate connection (and any multiplexed sessions)", + SUPPRESS_MUXCLIENT}, + {"B", "send a BREAK to the remote system", SUPPRESS_PROTO1}, + {"C", "open a command line", SUPPRESS_MUXCLIENT}, + {"R", "request rekey", SUPPRESS_PROTO1}, + {"V/v", "decrease/increase verbosity (LogLevel)", SUPPRESS_MUXCLIENT}, + {"^Z", "suspend ssh", SUPPRESS_MUXCLIENT}, + {"#", "list forwarded connections", SUPPRESS_NEVER}, + {"&", "background ssh (when waiting for connections to terminate)", + SUPPRESS_MUXCLIENT}, + {"?", "this message", SUPPRESS_NEVER}, +}; + +static void +print_escape_help(Buffer *b, int escape_char, int protocol2, int mux_client, + int using_stderr) +{ + unsigned int i, suppress_flags; + char string[1024]; + + snprintf(string, sizeof string, "%c?\r\n" + "Supported escape sequences:\r\n", escape_char); + buffer_append(b, string, strlen(string)); + + suppress_flags = (protocol2 ? 0 : SUPPRESS_PROTO1) | + (mux_client ? SUPPRESS_MUXCLIENT : 0) | + (mux_client ? 0 : SUPPRESS_MUXMASTER) | + (using_stderr ? 0 : SUPPRESS_SYSLOG); + + for (i = 0; i < sizeof(esc_txt)/sizeof(esc_txt[0]); i++) { + if (esc_txt[i].flags & suppress_flags) + continue; + snprintf(string, sizeof string, " %c%-3s - %s\r\n", + escape_char, esc_txt[i].cmd, esc_txt[i].text); + buffer_append(b, string, strlen(string)); + } + + snprintf(string, sizeof string, + " %c%c - send the escape character by typing it twice\r\n" + "(Note that escapes are only recognized immediately after " + "newline.)\r\n", escape_char, escape_char); + buffer_append(b, string, strlen(string)); } /* @@ -1042,6 +1109,11 @@ process_escapes(Channel *c, Buffer *bin, Buffer *bout, Buffer *berr, if (c && c->ctl_chan != -1) { chan_read_failed(c); chan_write_failed(c); + if (c->detach_user) + c->detach_user(c->self, NULL); + c->type = SSH_CHANNEL_ABANDONED; + buffer_clear(&c->input); + chan_ibuf_empty(c); return 0; } else quit_pending = 1; @@ -1050,11 +1122,16 @@ process_escapes(Channel *c, Buffer *bin, Buffer *bout, Buffer *berr, case 'Z' - 64: /* XXX support this for mux clients */ if (c && c->ctl_chan != -1) { + char b[16]; noescape: + if (ch == 'Z' - 64) + snprintf(b, sizeof b, "^Z"); + else + snprintf(b, sizeof b, "%c", ch); snprintf(string, sizeof string, - "%c%c escape not available to " + "%c%s escape not available to " "multiplexed sessions\r\n", - escape_char, ch); + escape_char, b); buffer_append(berr, string, strlen(string)); continue; @@ -1076,7 +1153,7 @@ process_escapes(Channel *c, Buffer *bin, Buffer *bout, Buffer *berr, "%cB\r\n", escape_char); buffer_append(berr, string, strlen(string)); - channel_request_start(session_ident, + channel_request_start(c->self, "break", 0); packet_put_int(1000); packet_send(); @@ -1093,6 +1170,31 @@ process_escapes(Channel *c, Buffer *bin, Buffer *bout, Buffer *berr, } continue; + case 'V': + /* FALLTHROUGH */ + case 'v': + if (c && c->ctl_chan != -1) + goto noescape; + if (!log_is_on_stderr()) { + snprintf(string, sizeof string, + "%c%c [Logging to syslog]\r\n", + escape_char, ch); + buffer_append(berr, string, + strlen(string)); + continue; + } + if (ch == 'V' && options.log_level > + SYSLOG_LEVEL_QUIET) + log_change_level(--options.log_level); + if (ch == 'v' && options.log_level < + SYSLOG_LEVEL_DEBUG3) + log_change_level(++options.log_level); + snprintf(string, sizeof string, + "%c%c [LogLevel %s]\r\n", escape_char, ch, + log_level_name(options.log_level)); + buffer_append(berr, string, strlen(string)); + continue; + case '&': if (c && c->ctl_chan != -1) goto noescape; @@ -1146,43 +1248,9 @@ process_escapes(Channel *c, Buffer *bin, Buffer *bout, Buffer *berr, continue; case '?': - if (c && c->ctl_chan != -1) { - snprintf(string, sizeof string, -"%c?\r\n\ -Supported escape sequences:\r\n\ - %c. - terminate session\r\n\ - %cB - send a BREAK to the remote system\r\n\ - %cR - Request rekey (SSH protocol 2 only)\r\n\ - %c# - list forwarded connections\r\n\ - %c? - this message\r\n\ - %c%c - send the escape character by typing it twice\r\n\ -(Note that escapes are only recognized immediately after newline.)\r\n", - escape_char, escape_char, - escape_char, escape_char, - escape_char, escape_char, - escape_char, escape_char); - } else { - snprintf(string, sizeof string, -"%c?\r\n\ -Supported escape sequences:\r\n\ - %c. - terminate connection (and any multiplexed sessions)\r\n\ - %cB - send a BREAK to the remote system\r\n\ - %cC - open a command line\r\n\ - %cR - Request rekey (SSH protocol 2 only)\r\n\ - %c^Z - suspend ssh\r\n\ - %c# - list forwarded connections\r\n\ - %c& - background ssh (when waiting for connections to terminate)\r\n\ - %c? - this message\r\n\ - %c%c - send the escape character by typing it twice\r\n\ -(Note that escapes are only recognized immediately after newline.)\r\n", - escape_char, escape_char, - escape_char, escape_char, - escape_char, escape_char, - escape_char, escape_char, - escape_char, escape_char, - escape_char); - } - buffer_append(berr, string, strlen(string)); + print_escape_help(berr, escape_char, compat20, + (c && c->ctl_chan != -1), + log_is_on_stderr()); continue; case '#': @@ -1191,7 +1259,7 @@ Supported escape sequences:\r\n\ buffer_append(berr, string, strlen(string)); s = channel_open_message(); buffer_append(berr, s, strlen(s)); - xfree(s); + free(s); continue; case 'C': @@ -1370,7 +1438,7 @@ client_new_escape_filter_ctx(int escape_char) { struct escape_filter_ctx *ret; - ret = xmalloc(sizeof(*ret)); + ret = xcalloc(1, sizeof(*ret)); ret->escape_pending = 0; ret->escape_char = escape_char; return (void *)ret; @@ -1380,7 +1448,7 @@ client_new_escape_filter_ctx(int escape_char) void client_filter_cleanup(int cid, void *ctx) { - xfree(ctx); + free(ctx); } int @@ -1585,16 +1653,14 @@ client_loop(int have_pty, int escape_char_arg, int ssh2_chan_id) * connections, then quit. */ if (control_persist_exit_time > 0) { - if (time(NULL) >= control_persist_exit_time) { + if (monotime() >= control_persist_exit_time) { debug("ControlPersist timeout expired"); break; } } } - if (readset) - xfree(readset); - if (writeset) - xfree(writeset); + free(readset); + free(writeset); /* Terminate the session. */ @@ -1696,7 +1762,7 @@ client_input_stdout_data(int type, u_int32_t seq, void *ctxt) packet_check_eom(); buffer_append(&stdout_buffer, data, data_len); memset(data, 0, data_len); - xfree(data); + free(data); } static void client_input_stderr_data(int type, u_int32_t seq, void *ctxt) @@ -1706,7 +1772,7 @@ client_input_stderr_data(int type, u_int32_t seq, void *ctxt) packet_check_eom(); buffer_append(&stderr_buffer, data, data_len); memset(data, 0, data_len); - xfree(data); + free(data); } static void client_input_exit_status(int type, u_int32_t seq, void *ctxt) @@ -1786,8 +1852,8 @@ client_request_forwarded_tcpip(const char *request_type, int rchan) c = channel_connect_by_listen_address(listen_port, "forwarded-tcpip", originator_address); - xfree(originator_address); - xfree(listen_address); + free(originator_address); + free(listen_address); return c; } @@ -1805,7 +1871,7 @@ client_request_x11(const char *request_type, int rchan) "malicious server."); return NULL; } - if (x11_refuse_time != 0 && time(NULL) >= x11_refuse_time) { + if (x11_refuse_time != 0 && monotime() >= x11_refuse_time) { verbose("Rejected X11 connection after ForwardX11Timeout " "expired"); return NULL; @@ -1821,7 +1887,7 @@ client_request_x11(const char *request_type, int rchan) /* XXX check permission */ debug("client_request_x11: request from %s %d", originator, originator_port); - xfree(originator); + free(originator); sock = x11_connect_display(); if (sock < 0) return NULL; @@ -1948,7 +2014,7 @@ client_input_channel_open(int type, u_int32_t seq, void *ctxt) } packet_send(); } - xfree(ctype); + free(ctype); } static void client_input_channel_req(int type, u_int32_t seq, void *ctxt) @@ -1994,7 +2060,7 @@ client_input_channel_req(int type, u_int32_t seq, void *ctxt) packet_put_int(c->remote_id); packet_send(); } - xfree(rtype); + free(rtype); } static void client_input_global_request(int type, u_int32_t seq, void *ctxt) @@ -2013,7 +2079,7 @@ client_input_global_request(int type, u_int32_t seq, void *ctxt) packet_send(); packet_write_wait(); } - xfree(rtype); + free(rtype); } void @@ -2063,7 +2129,7 @@ client_session2_setup(int id, int want_tty, int want_subsystem, /* Split */ name = xstrdup(env[i]); if ((val = strchr(name, '=')) == NULL) { - xfree(name); + free(name); continue; } *val++ = '\0'; @@ -2077,7 +2143,7 @@ client_session2_setup(int id, int want_tty, int want_subsystem, } if (!matched) { debug3("Ignored env %s", name); - xfree(name); + free(name); continue; } @@ -2086,7 +2152,7 @@ client_session2_setup(int id, int want_tty, int want_subsystem, packet_put_cstring(name); packet_put_cstring(val); packet_send(); - xfree(name); + free(name); } } @@ -2185,10 +2251,10 @@ client_stop_mux(void) if (options.control_path != NULL && muxserver_sock != -1) unlink(options.control_path); /* - * If we are in persist mode, signal that we should close when all - * active channels are closed. + * If we are in persist mode, or don't have a shell, signal that we + * should close when all active channels are closed. */ - if (options.control_persist) { + if (options.control_persist || no_shell_flag) { session_closed = 1; setproctitle("[stopped mux]"); } diff --git a/clientloop.h b/clientloop.h index 3bb79487..338d4518 100644 --- a/clientloop.h +++ b/clientloop.h @@ -1,4 +1,4 @@ -/* $OpenBSD: clientloop.h,v 1.29 2011/09/09 22:46:44 djm Exp $ */ +/* $OpenBSD: clientloop.h,v 1.31 2013/06/02 23:36:29 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -1,4 +1,4 @@ -/* $OpenBSD: compat.c,v 1.79 2011/09/23 07:45:05 markus Exp $ */ +/* $OpenBSD: compat.c,v 1.82 2013/12/30 23:52:27 djm Exp $ */ /* * Copyright (c) 1999, 2000, 2001, 2002 Markus Friedl. All rights reserved. * @@ -45,6 +45,8 @@ int datafellows = 0; void enable_compat20(void) { + if (compat20) + return; debug("Enabling compatibility mode for protocol 2.0"); compat20 = 1; } @@ -169,8 +171,9 @@ compat_datafellows(const char *version) for (i = 0; check[i].pat; i++) { if (match_pattern_list(version, check[i].pat, strlen(check[i].pat), 0) == 1) { - debug("match: %s pat %s", version, check[i].pat); datafellows = check[i].bugs; + debug("match: %s pat %s compat 0x%08x", + version, check[i].pat, datafellows); return; } } @@ -202,37 +205,63 @@ proto_spec(const char *spec) break; } } - xfree(s); + free(s); return ret; } -char * -compat_cipher_proposal(char *cipher_prop) +/* + * Filters a proposal string, excluding any algorithm matching the 'filter' + * pattern list. + */ +static char * +filter_proposal(char *proposal, const char *filter) { Buffer b; - char *orig_prop, *fix_ciphers; + char *orig_prop, *fix_prop; char *cp, *tmp; - if (!(datafellows & SSH_BUG_BIGENDIANAES)) - return(cipher_prop); - buffer_init(&b); - tmp = orig_prop = xstrdup(cipher_prop); + tmp = orig_prop = xstrdup(proposal); while ((cp = strsep(&tmp, ",")) != NULL) { - if (strncmp(cp, "aes", 3) != 0) { + if (match_pattern_list(cp, filter, strlen(cp), 0) != 1) { if (buffer_len(&b) > 0) buffer_append(&b, ",", 1); buffer_append(&b, cp, strlen(cp)); - } + } else + debug2("Compat: skipping algorithm \"%s\"", cp); } buffer_append(&b, "\0", 1); - fix_ciphers = xstrdup(buffer_ptr(&b)); + fix_prop = xstrdup(buffer_ptr(&b)); buffer_free(&b); - xfree(orig_prop); - debug2("Original cipher proposal: %s", cipher_prop); - debug2("Compat cipher proposal: %s", fix_ciphers); - if (!*fix_ciphers) - fatal("No available ciphers found."); + free(orig_prop); - return(fix_ciphers); + return fix_prop; } + +char * +compat_cipher_proposal(char *cipher_prop) +{ + if (!(datafellows & SSH_BUG_BIGENDIANAES)) + return cipher_prop; + debug2("%s: original cipher proposal: %s", __func__, cipher_prop); + cipher_prop = filter_proposal(cipher_prop, "aes*"); + debug2("%s: compat cipher proposal: %s", __func__, cipher_prop); + if (*cipher_prop == '\0') + fatal("No supported ciphers found"); + return cipher_prop; +} + + +char * +compat_pkalg_proposal(char *pkalg_prop) +{ + if (!(datafellows & SSH_BUG_RSASIGMD5)) + return pkalg_prop; + debug2("%s: original public key proposal: %s", __func__, pkalg_prop); + pkalg_prop = filter_proposal(pkalg_prop, "ssh-rsa"); + debug2("%s: compat public key proposal: %s", __func__, pkalg_prop); + if (*pkalg_prop == '\0') + fatal("No supported PK algorithms found"); + return pkalg_prop; +} + @@ -1,4 +1,4 @@ -/* $OpenBSD: compat.h,v 1.43 2011/09/23 07:45:05 markus Exp $ */ +/* $OpenBSD: compat.h,v 1.44 2013/12/30 23:52:27 djm Exp $ */ /* * Copyright (c) 1999, 2000, 2001 Markus Friedl. All rights reserved. @@ -65,6 +65,7 @@ void enable_compat20(void); void compat_datafellows(const char *); int proto_spec(const char *); char *compat_cipher_proposal(char *); +char *compat_pkalg_proposal(char *); extern int compat13; extern int compat20; diff --git a/config.guess b/config.guess index 78553c4e..b94cde8e 100755 --- a/config.guess +++ b/config.guess @@ -2,9 +2,9 @@ # Attempt to guess a canonical system name. # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, # 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, -# 2011 Free Software Foundation, Inc. +# 2011, 2012, 2013 Free Software Foundation, Inc. -timestamp='2011-01-23' +timestamp='2012-12-23' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by @@ -17,9 +17,7 @@ timestamp='2011-01-23' # General Public License for more details. # # You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA -# 02110-1301, USA. +# along with this program; if not, see <http://www.gnu.org/licenses/>. # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a @@ -57,8 +55,8 @@ GNU config.guess ($timestamp) Originally written by Per Bothner. Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, -2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free -Software Foundation, Inc. +2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, +2012, 2013 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." @@ -145,7 +143,7 @@ UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in *:NetBSD:*:*) # NetBSD (nbsd) targets should (where applicable) match one or - # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*, + # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*, # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently # switched to ELF, *-*-netbsd* would select the old # object file format. This provides both forward @@ -181,7 +179,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in fi ;; *) - os=netbsd + os=netbsd ;; esac # The OS release @@ -202,6 +200,10 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used. echo "${machine}-${os}${release}" exit ;; + *:Bitrig:*:*) + UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'` + echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE} + exit ;; *:OpenBSD:*:*) UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'` echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE} @@ -224,7 +226,7 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'` ;; *5.*) - UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'` + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'` ;; esac # According to Compaq, /usr/sbin/psrinfo has been available on @@ -299,12 +301,12 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in echo s390-ibm-zvmoe exit ;; *:OS400:*:*) - echo powerpc-ibm-os400 + echo powerpc-ibm-os400 exit ;; arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) echo arm-acorn-riscix${UNAME_RELEASE} exit ;; - arm:riscos:*:*|arm:RISCOS:*:*) + arm*:riscos:*:*|arm*:RISCOS:*:*) echo arm-unknown-riscos exit ;; SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*) @@ -398,23 +400,23 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in # MiNT. But MiNT is downward compatible to TOS, so this should # be no problem. atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) - echo m68k-atari-mint${UNAME_RELEASE} + echo m68k-atari-mint${UNAME_RELEASE} exit ;; atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} - exit ;; + exit ;; *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) - echo m68k-atari-mint${UNAME_RELEASE} + echo m68k-atari-mint${UNAME_RELEASE} exit ;; milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) - echo m68k-milan-mint${UNAME_RELEASE} - exit ;; + echo m68k-milan-mint${UNAME_RELEASE} + exit ;; hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) - echo m68k-hades-mint${UNAME_RELEASE} - exit ;; + echo m68k-hades-mint${UNAME_RELEASE} + exit ;; *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) - echo m68k-unknown-mint${UNAME_RELEASE} - exit ;; + echo m68k-unknown-mint${UNAME_RELEASE} + exit ;; m68k:machten:*:*) echo m68k-apple-machten${UNAME_RELEASE} exit ;; @@ -484,8 +486,8 @@ EOF echo m88k-motorola-sysv3 exit ;; AViiON:dgux:*:*) - # DG/UX returns AViiON for all architectures - UNAME_PROCESSOR=`/usr/bin/uname -p` + # DG/UX returns AViiON for all architectures + UNAME_PROCESSOR=`/usr/bin/uname -p` if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] then if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ @@ -498,7 +500,7 @@ EOF else echo i586-dg-dgux${UNAME_RELEASE} fi - exit ;; + exit ;; M88*:DolphinOS:*:*) # DolphinOS (SVR3) echo m88k-dolphin-sysv3 exit ;; @@ -598,52 +600,52 @@ EOF 9000/[678][0-9][0-9]) if [ -x /usr/bin/getconf ]; then sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` - sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` - case "${sc_cpu_version}" in - 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 - 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 - 532) # CPU_PA_RISC2_0 - case "${sc_kernel_bits}" in - 32) HP_ARCH="hppa2.0n" ;; - 64) HP_ARCH="hppa2.0w" ;; + sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` + case "${sc_cpu_version}" in + 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 + 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 + 532) # CPU_PA_RISC2_0 + case "${sc_kernel_bits}" in + 32) HP_ARCH="hppa2.0n" ;; + 64) HP_ARCH="hppa2.0w" ;; '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 - esac ;; - esac + esac ;; + esac fi if [ "${HP_ARCH}" = "" ]; then eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c + sed 's/^ //' << EOF >$dummy.c - #define _HPUX_SOURCE - #include <stdlib.h> - #include <unistd.h> + #define _HPUX_SOURCE + #include <stdlib.h> + #include <unistd.h> - int main () - { - #if defined(_SC_KERNEL_BITS) - long bits = sysconf(_SC_KERNEL_BITS); - #endif - long cpu = sysconf (_SC_CPU_VERSION); + int main () + { + #if defined(_SC_KERNEL_BITS) + long bits = sysconf(_SC_KERNEL_BITS); + #endif + long cpu = sysconf (_SC_CPU_VERSION); - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1"); break; - case CPU_PA_RISC2_0: - #if defined(_SC_KERNEL_BITS) - switch (bits) - { - case 64: puts ("hppa2.0w"); break; - case 32: puts ("hppa2.0n"); break; - default: puts ("hppa2.0"); break; - } break; - #else /* !defined(_SC_KERNEL_BITS) */ - puts ("hppa2.0"); break; - #endif - default: puts ("hppa1.0"); break; - } - exit (0); - } + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1"); break; + case CPU_PA_RISC2_0: + #if defined(_SC_KERNEL_BITS) + switch (bits) + { + case 64: puts ("hppa2.0w"); break; + case 32: puts ("hppa2.0n"); break; + default: puts ("hppa2.0"); break; + } break; + #else /* !defined(_SC_KERNEL_BITS) */ + puts ("hppa2.0"); break; + #endif + default: puts ("hppa1.0"); break; + } + exit (0); + } EOF (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` test -z "$HP_ARCH" && HP_ARCH=hppa @@ -734,22 +736,22 @@ EOF exit ;; C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) echo c1-convex-bsd - exit ;; + exit ;; C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi - exit ;; + exit ;; C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) echo c34-convex-bsd - exit ;; + exit ;; C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) echo c38-convex-bsd - exit ;; + exit ;; C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) echo c4-convex-bsd - exit ;; + exit ;; CRAY*Y-MP:*:*:*) echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; @@ -773,14 +775,14 @@ EOF exit ;; F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` - echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; + FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` + FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` + echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit ;; 5000:UNIX_System_V:4.*:*) - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` - echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` + FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` + echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} @@ -792,30 +794,35 @@ EOF echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} exit ;; *:FreeBSD:*:*) - case ${UNAME_MACHINE} in - pc98) - echo i386-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; + UNAME_PROCESSOR=`/usr/bin/uname -p` + case ${UNAME_PROCESSOR} in amd64) echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; *) - echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; + echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; esac exit ;; i*:CYGWIN*:*) echo ${UNAME_MACHINE}-pc-cygwin exit ;; + *:MINGW64*:*) + echo ${UNAME_MACHINE}-pc-mingw64 + exit ;; *:MINGW*:*) echo ${UNAME_MACHINE}-pc-mingw32 exit ;; + i*:MSYS*:*) + echo ${UNAME_MACHINE}-pc-msys + exit ;; i*:windows32*:*) - # uname -m includes "-pc" on this system. - echo ${UNAME_MACHINE}-mingw32 + # uname -m includes "-pc" on this system. + echo ${UNAME_MACHINE}-mingw32 exit ;; i*:PW*:*) echo ${UNAME_MACHINE}-pc-pw32 exit ;; *:Interix*:*) - case ${UNAME_MACHINE} in + case ${UNAME_MACHINE} in x86) echo i586-pc-interix${UNAME_RELEASE} exit ;; @@ -861,6 +868,13 @@ EOF i*86:Minix:*:*) echo ${UNAME_MACHINE}-pc-minix exit ;; + aarch64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + aarch64_be:Linux:*:*) + UNAME_MACHINE=aarch64_be + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; alpha:Linux:*:*) case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in EV5) UNAME_MACHINE=alphaev5 ;; @@ -870,7 +884,7 @@ EOF EV6) UNAME_MACHINE=alphaev6 ;; EV67) UNAME_MACHINE=alphaev67 ;; EV68*) UNAME_MACHINE=alphaev68 ;; - esac + esac objdump --private-headers /bin/sh | grep -q ld.so.1 if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC} @@ -882,20 +896,29 @@ EOF then echo ${UNAME_MACHINE}-unknown-linux-gnu else - echo ${UNAME_MACHINE}-unknown-linux-gnueabi + if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep -q __ARM_PCS_VFP + then + echo ${UNAME_MACHINE}-unknown-linux-gnueabi + else + echo ${UNAME_MACHINE}-unknown-linux-gnueabihf + fi fi exit ;; avr32*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; cris:Linux:*:*) - echo cris-axis-linux-gnu + echo ${UNAME_MACHINE}-axis-linux-gnu exit ;; crisv32:Linux:*:*) - echo crisv32-axis-linux-gnu + echo ${UNAME_MACHINE}-axis-linux-gnu exit ;; frv:Linux:*:*) - echo frv-unknown-linux-gnu + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit ;; + hexagon:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; i*86:Linux:*:*) LIBC=gnu @@ -937,7 +960,7 @@ EOF test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; } ;; or32:Linux:*:*) - echo or32-unknown-linux-gnu + echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; padre:Linux:*:*) echo sparc-unknown-linux-gnu @@ -963,7 +986,7 @@ EOF echo ${UNAME_MACHINE}-ibm-linux exit ;; sh64*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu + echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; sh*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu @@ -972,16 +995,16 @@ EOF echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; tile*:Linux:*:*) - echo ${UNAME_MACHINE}-tilera-linux-gnu + echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; vax:Linux:*:*) echo ${UNAME_MACHINE}-dec-linux-gnu exit ;; x86_64:Linux:*:*) - echo x86_64-unknown-linux-gnu + echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; xtensa*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu + echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; i*86:DYNIX/ptx:4*:*) # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. @@ -990,11 +1013,11 @@ EOF echo i386-sequent-sysv4 exit ;; i*86:UNIX_SV:4.2MP:2.*) - # Unixware is an offshoot of SVR4, but it has its own version - # number series starting with 2... - # I am not positive that other SVR4 systems won't match this, + # Unixware is an offshoot of SVR4, but it has its own version + # number series starting with 2... + # I am not positive that other SVR4 systems won't match this, # I just have to hope. -- rms. - # Use sysv4.2uw... so that sysv4* matches it. + # Use sysv4.2uw... so that sysv4* matches it. echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} exit ;; i*86:OS/2:*:*) @@ -1026,7 +1049,7 @@ EOF fi exit ;; i*86:*:5:[678]*) - # UnixWare 7.x, OpenUNIX and OpenServer 6. + # UnixWare 7.x, OpenUNIX and OpenServer 6. case `/bin/uname -X | grep "^Machine"` in *486*) UNAME_MACHINE=i486 ;; *Pentium) UNAME_MACHINE=i586 ;; @@ -1054,13 +1077,13 @@ EOF exit ;; pc:*:*:*) # Left here for compatibility: - # uname -m prints for DJGPP always 'pc', but it prints nothing about - # the processor, so we play safe by assuming i586. + # uname -m prints for DJGPP always 'pc', but it prints nothing about + # the processor, so we play safe by assuming i586. # Note: whatever this is, it MUST be the same as what config.sub # prints for the "djgpp" host, or else GDB configury will decide that # this is a cross-build. echo i586-pc-msdosdjgpp - exit ;; + exit ;; Intel:Mach:3*:*) echo i386-pc-mach3 exit ;; @@ -1095,8 +1118,8 @@ EOF /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) - /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ - && { echo i486-ncr-sysv4; exit; } ;; + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && { echo i486-ncr-sysv4; exit; } ;; NCR*:*:4.2:* | MPRAS*:*:4.2:*) OS_REL='.3' test -r /etc/.relid \ @@ -1139,10 +1162,10 @@ EOF echo ns32k-sni-sysv fi exit ;; - PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort - # says <Richard.M.Bartel@ccMail.Census.GOV> - echo i586-unisys-sysv4 - exit ;; + PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort + # says <Richard.M.Bartel@ccMail.Census.GOV> + echo i586-unisys-sysv4 + exit ;; *:UNIX_System_V:4*:FTX*) # From Gerald Hewes <hewes@openmarket.com>. # How about differentiating between stratus architectures? -djm @@ -1168,11 +1191,11 @@ EOF exit ;; R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) if [ -d /usr/nec ]; then - echo mips-nec-sysv${UNAME_RELEASE} + echo mips-nec-sysv${UNAME_RELEASE} else - echo mips-unknown-sysv${UNAME_RELEASE} + echo mips-unknown-sysv${UNAME_RELEASE} fi - exit ;; + exit ;; BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. echo powerpc-be-beos exit ;; @@ -1185,6 +1208,9 @@ EOF BePC:Haiku:*:*) # Haiku running on Intel PC compatible. echo i586-pc-haiku exit ;; + x86_64:Haiku:*:*) + echo x86_64-unknown-haiku + exit ;; SX-4:SUPER-UX:*:*) echo sx4-nec-superux${UNAME_RELEASE} exit ;; @@ -1240,7 +1266,7 @@ EOF NEO-?:NONSTOP_KERNEL:*:*) echo neo-tandem-nsk${UNAME_RELEASE} exit ;; - NSE-?:NONSTOP_KERNEL:*:*) + NSE-*:NONSTOP_KERNEL:*:*) echo nse-tandem-nsk${UNAME_RELEASE} exit ;; NSR-?:NONSTOP_KERNEL:*:*) @@ -1285,13 +1311,13 @@ EOF echo pdp10-unknown-its exit ;; SEI:*:*:SEIUX) - echo mips-sei-seiux${UNAME_RELEASE} + echo mips-sei-seiux${UNAME_RELEASE} exit ;; *:DragonFly:*:*) echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` exit ;; *:*VMS:*:*) - UNAME_MACHINE=`(uname -p) 2>/dev/null` + UNAME_MACHINE=`(uname -p) 2>/dev/null` case "${UNAME_MACHINE}" in A*) echo alpha-dec-vms ; exit ;; I*) echo ia64-dec-vms ; exit ;; @@ -1309,11 +1335,11 @@ EOF i*86:AROS:*:*) echo ${UNAME_MACHINE}-pc-aros exit ;; + x86_64:VMkernel:*:*) + echo ${UNAME_MACHINE}-unknown-esx + exit ;; esac -#echo '(No uname command or uname output not recognized.)' 1>&2 -#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 - eval $set_cc_for_build cat >$dummy.c <<EOF #ifdef _SEQUENT_ @@ -1331,11 +1357,11 @@ main () #include <sys/param.h> printf ("m68k-sony-newsos%s\n", #ifdef NEWSOS4 - "4" + "4" #else - "" + "" #endif - ); exit (0); + ); exit (0); #endif #endif @@ -2,9 +2,9 @@ # Configuration validation subroutine script. # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, # 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, -# 2011 Free Software Foundation, Inc. +# 2011, 2012, 2013 Free Software Foundation, Inc. -timestamp='2011-01-01' +timestamp='2012-12-23' # This file is (in principle) common to ALL GNU software. # The presence of a machine in this file suggests that SOME GNU software @@ -21,9 +21,7 @@ timestamp='2011-01-01' # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA -# 02110-1301, USA. +# along with this program; if not, see <http://www.gnu.org/licenses/>. # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a @@ -76,8 +74,8 @@ version="\ GNU config.sub ($timestamp) Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, -2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free -Software Foundation, Inc. +2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, +2012, 2013 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." @@ -125,13 +123,17 @@ esac maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'` case $maybe_os in nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \ - linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \ + linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \ knetbsd*-gnu* | netbsd*-gnu* | \ kopensolaris*-gnu* | \ storm-chaos* | os2-emx* | rtmk-nova*) os=-$maybe_os basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'` ;; + android-linux) + os=-linux-android + basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown + ;; *) basic_machine=`echo $1 | sed 's/-[^-]*$//'` if [ $basic_machine != $1 ] @@ -154,12 +156,12 @@ case $os in -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ - -apple | -axis | -knuth | -cray | -microblaze) + -apple | -axis | -knuth | -cray | -microblaze*) os= basic_machine=$1 ;; - -bluegene*) - os=-cnk + -bluegene*) + os=-cnk ;; -sim | -cisco | -oki | -wec | -winbond) os= @@ -175,10 +177,10 @@ case $os in os=-chorusos basic_machine=$1 ;; - -chorusrdb) - os=-chorusrdb + -chorusrdb) + os=-chorusrdb basic_machine=$1 - ;; + ;; -hiux*) os=-hiuxwe2 ;; @@ -223,6 +225,12 @@ case $os in -isc*) basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; + -lynx*178) + os=-lynxos178 + ;; + -lynx*5) + os=-lynxos5 + ;; -lynx*) os=-lynxos ;; @@ -247,20 +255,27 @@ case $basic_machine in # Some are omitted here because they have special meanings below. 1750a | 580 \ | a29k \ + | aarch64 | aarch64_be \ | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ | am33_2.0 \ - | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \ + | arc \ + | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \ + | avr | avr32 \ + | be32 | be64 \ | bfin \ | c4x | clipper \ | d10v | d30v | dlx | dsp16xx \ + | epiphany \ | fido | fr30 | frv \ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ + | hexagon \ | i370 | i860 | i960 | ia64 \ | ip2k | iq2000 \ + | le32 | le64 \ | lm32 \ | m32c | m32r | m32rle | m68000 | m68k | m88k \ - | maxq | mb | microblaze | mcore | mep | metag \ + | maxq | mb | microblaze | microblazeel | mcore | mep | metag \ | mips | mipsbe | mipseb | mipsel | mipsle \ | mips16 \ | mips64 | mips64el \ @@ -286,22 +301,23 @@ case $basic_machine in | nds32 | nds32le | nds32be \ | nios | nios2 \ | ns16k | ns32k \ + | open8 \ | or32 \ | pdp10 | pdp11 | pj | pjl \ - | powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \ + | powerpc | powerpc64 | powerpc64le | powerpcle \ | pyramid \ - | rx \ + | rl78 | rx \ | score \ | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ | sh64 | sh64le \ | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ - | spu | strongarm \ - | tahoe | thumb | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ + | spu \ + | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ | ubicom32 \ - | v850 | v850e \ + | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ | we32k \ - | x86 | xc16x | xscale | xscalee[bl] | xstormy16 | xtensa \ + | x86 | xc16x | xstormy16 | xtensa \ | z8k | z80) basic_machine=$basic_machine-unknown ;; @@ -314,8 +330,7 @@ case $basic_machine in c6x) basic_machine=tic6x-unknown ;; - m6811 | m68hc11 | m6812 | m68hc12 | picochip) - # Motorola 68HC11/12. + m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip) basic_machine=$basic_machine-unknown os=-none ;; @@ -325,6 +340,21 @@ case $basic_machine in basic_machine=mt-unknown ;; + strongarm | thumb | xscale) + basic_machine=arm-unknown + ;; + xgate) + basic_machine=$basic_machine-unknown + os=-none + ;; + xscaleeb) + basic_machine=armeb-unknown + ;; + + xscaleel) + basic_machine=armel-unknown + ;; + # We use `pc' rather than `unknown' # because (1) that's what they normally are, and # (2) the word "unknown" tends to confuse beginning users. @@ -339,11 +369,13 @@ case $basic_machine in # Recognize the basic CPU types with company name. 580-* \ | a29k-* \ + | aarch64-* | aarch64_be-* \ | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \ | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ | avr-* | avr32-* \ + | be32-* | be64-* \ | bfin-* | bs2000-* \ | c[123]* | c30-* | [cjt]90-* | c4x-* \ | clipper-* | craynv-* | cydra-* \ @@ -352,12 +384,15 @@ case $basic_machine in | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ | h8300-* | h8500-* \ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ + | hexagon-* \ | i*86-* | i860-* | i960-* | ia64-* \ | ip2k-* | iq2000-* \ + | le32-* | le64-* \ | lm32-* \ | m32c-* | m32r-* | m32rle-* \ | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ - | m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \ + | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \ + | microblaze-* | microblazeel-* \ | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ | mips16-* \ | mips64-* | mips64el-* \ @@ -382,24 +417,26 @@ case $basic_machine in | nds32-* | nds32le-* | nds32be-* \ | nios-* | nios2-* \ | none-* | np1-* | ns16k-* | ns32k-* \ + | open8-* \ | orion-* \ | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ - | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \ + | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ | pyramid-* \ - | romp-* | rs6000-* | rx-* \ + | rl78-* | romp-* | rs6000-* | rx-* \ | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ | sparclite-* \ - | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \ - | tahoe-* | thumb-* \ + | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \ + | tahoe-* \ | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ - | tile-* | tilegx-* \ + | tile*-* \ | tron-* \ | ubicom32-* \ - | v850-* | v850e-* | vax-* \ + | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ + | vax-* \ | we32k-* \ - | x86-* | x86_64-* | xc16x-* | xps100-* | xscale-* | xscalee[bl]-* \ + | x86-* | x86_64-* | xc16x-* | xps100-* \ | xstormy16-* | xtensa*-* \ | ymp-* \ | z8k-* | z80-*) @@ -424,7 +461,7 @@ case $basic_machine in basic_machine=a29k-amd os=-udi ;; - abacus) + abacus) basic_machine=abacus-unknown ;; adobe68k) @@ -507,7 +544,7 @@ case $basic_machine in basic_machine=c90-cray os=-unicos ;; - cegcc) + cegcc) basic_machine=arm-unknown os=-cegcc ;; @@ -697,7 +734,6 @@ case $basic_machine in i370-ibm* | ibm*) basic_machine=i370-ibm ;; -# I'm not sure what "Sysv32" means. Should this be sysv3.2? i*86v32) basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` os=-sysv32 @@ -755,9 +791,13 @@ case $basic_machine in basic_machine=ns32k-utek os=-sysv ;; - microblaze) + microblaze*) basic_machine=microblaze-xilinx ;; + mingw64) + basic_machine=x86_64-pc + os=-mingw64 + ;; mingw32) basic_machine=i386-pc os=-mingw32 @@ -794,10 +834,18 @@ case $basic_machine in ms1-*) basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'` ;; + msys) + basic_machine=i386-pc + os=-msys + ;; mvs) basic_machine=i370-ibm os=-mvs ;; + nacl) + basic_machine=le32-unknown + os=-nacl + ;; ncr3000) basic_machine=i486-ncr os=-sysv4 @@ -862,10 +910,10 @@ case $basic_machine in np1) basic_machine=np1-gould ;; - neo-tandem) + neo-tandem) basic_machine=neo-tandem ;; - nse-tandem) + nse-tandem) basic_machine=nse-tandem ;; nsr-tandem) @@ -950,9 +998,10 @@ case $basic_machine in ;; power) basic_machine=power-ibm ;; - ppc) basic_machine=powerpc-unknown + ppc | ppcbe) basic_machine=powerpc-unknown ;; - ppc-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` + ppc-* | ppcbe-*) + basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` ;; ppcle | powerpclittle | ppc-le | powerpc-little) basic_machine=powerpcle-unknown @@ -977,7 +1026,11 @@ case $basic_machine in basic_machine=i586-unknown os=-pw32 ;; - rdos) + rdos | rdos64) + basic_machine=x86_64-pc + os=-rdos + ;; + rdos32) basic_machine=i386-pc os=-rdos ;; @@ -1046,6 +1099,9 @@ case $basic_machine in basic_machine=i860-stratus os=-sysv4 ;; + strongarm-* | thumb-*) + basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; sun2) basic_machine=m68000-sun ;; @@ -1102,13 +1158,8 @@ case $basic_machine in basic_machine=t90-cray os=-unicos ;; - # This must be matched before tile*. - tilegx*) - basic_machine=tilegx-unknown - os=-linux-gnu - ;; tile*) - basic_machine=tile-unknown + basic_machine=$basic_machine-unknown os=-linux-gnu ;; tx39) @@ -1178,6 +1229,9 @@ case $basic_machine in xps | xps100) basic_machine=xps100-honeywell ;; + xscale-* | xscalee[bl]-*) + basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'` + ;; ymp) basic_machine=ymp-cray os=-unicos @@ -1275,11 +1329,11 @@ esac if [ x"$os" != x"" ] then case $os in - # First match some system type aliases - # that might get confused with valid system types. + # First match some system type aliases + # that might get confused with valid system types. # -solaris* is a basic system type, with this one exception. - -auroraux) - os=-auroraux + -auroraux) + os=-auroraux ;; -solaris1 | -solaris1.*) os=`echo $os | sed -e 's|solaris1|sunos4|'` @@ -1309,15 +1363,15 @@ case $os in | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \ | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \ | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \ - | -openbsd* | -solidbsd* \ + | -bitrig* | -openbsd* | -solidbsd* \ | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \ | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \ | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \ | -chorusos* | -chorusrdb* | -cegcc* \ - | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ - | -mingw32* | -linux-gnu* | -linux-android* \ - | -linux-newlib* | -linux-uclibc* \ + | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ + | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \ + | -linux-newlib* | -linux-musl* | -linux-uclibc* \ | -uxpv* | -beos* | -mpeix* | -udk* \ | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \ | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \ @@ -1364,7 +1418,7 @@ case $os in -opened*) os=-openedition ;; - -os400*) + -os400*) os=-os400 ;; -wince*) @@ -1413,7 +1467,7 @@ case $os in -sinix*) os=-sysv4 ;; - -tpf*) + -tpf*) os=-tpf ;; -triton*) @@ -1458,8 +1512,8 @@ case $os in -dicos*) os=-dicos ;; - -nacl*) - ;; + -nacl*) + ;; -none) ;; *) @@ -1482,10 +1536,10 @@ else # system, and we'll never get to this point. case $basic_machine in - score-*) + score-*) os=-elf ;; - spu-*) + spu-*) os=-elf ;; *-acorn) @@ -1497,8 +1551,11 @@ case $basic_machine in arm*-semi) os=-aout ;; - c4x-* | tic4x-*) - os=-coff + c4x-* | tic4x-*) + os=-coff + ;; + hexagon-*) + os=-elf ;; tic54x-*) os=-coff @@ -1527,14 +1584,11 @@ case $basic_machine in ;; m68000-sun) os=-sunos3 - # This also exists in the configure program, but was not the - # default. - # os=-sunos4 ;; m68*-cisco) os=-aout ;; - mep-*) + mep-*) os=-elf ;; mips*-cisco) @@ -1561,7 +1615,7 @@ case $basic_machine in *-ibm) os=-aix ;; - *-knuth) + *-knuth) os=-mmixware ;; *-wec) diff --git a/configure.ac b/configure.ac index 54fc7d0c..dfd32cd8 100644 --- a/configure.ac +++ b/configure.ac @@ -1,4 +1,4 @@ -# $Id: configure.ac,v 1.486 2012/01/17 03:03:37 dtucker Exp $ +# $Id: configure.ac,v 1.568 2014/01/30 00:26:46 djm Exp $ # # Copyright (c) 1999-2004 Damien Miller # @@ -15,7 +15,7 @@ # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. AC_INIT([OpenSSH], [Portable], [openssh-unix-dev@mindrot.org]) -AC_REVISION($Revision: 1.486 $) +AC_REVISION($Revision: 1.568 $) AC_CONFIG_SRCDIR([ssh.c]) AC_LANG([C]) @@ -116,25 +116,61 @@ AC_CHECK_DECL([RLIMIT_NPROC], #include <sys/types.h> #include <sys/resource.h> ]) +AC_CHECK_DECL([PR_SET_NO_NEW_PRIVS], [have_linux_no_new_privs=1], , [ + #include <sys/types.h> + #include <linux/prctl.h> +]) use_stack_protector=1 +use_toolchain_hardening=1 AC_ARG_WITH([stackprotect], [ --without-stackprotect Don't use compiler's stack protection], [ if test "x$withval" = "xno"; then use_stack_protector=0 fi ]) +AC_ARG_WITH([hardening], + [ --without-hardening Don't use toolchain hardening flags], [ + if test "x$withval" = "xno"; then + use_toolchain_hardening=0 + fi ]) +# We use -Werror for the tests only so that we catch warnings like "this is +# on by default" for things like -fPIE. +AC_MSG_CHECKING([if $CC supports -Werror]) +saved_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -Werror" +AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int main(void) { return 0; }]])], + [ AC_MSG_RESULT([yes]) + WERROR="-Werror"], + [ AC_MSG_RESULT([no]) + WERROR="" ] +) +CFLAGS="$saved_CFLAGS" if test "$GCC" = "yes" || test "$GCC" = "egcs"; then + OSSH_CHECK_CFLAG_COMPILE([-Qunused-arguments]) + OSSH_CHECK_CFLAG_COMPILE([-Wunknown-warning-option]) OSSH_CHECK_CFLAG_COMPILE([-Wall]) OSSH_CHECK_CFLAG_COMPILE([-Wpointer-arith]) OSSH_CHECK_CFLAG_COMPILE([-Wuninitialized]) OSSH_CHECK_CFLAG_COMPILE([-Wsign-compare]) OSSH_CHECK_CFLAG_COMPILE([-Wformat-security]) + OSSH_CHECK_CFLAG_COMPILE([-Wsizeof-pointer-memaccess]) OSSH_CHECK_CFLAG_COMPILE([-Wpointer-sign], [-Wno-pointer-sign]) OSSH_CHECK_CFLAG_COMPILE([-Wunused-result], [-Wno-unused-result]) OSSH_CHECK_CFLAG_COMPILE([-fno-strict-aliasing]) OSSH_CHECK_CFLAG_COMPILE([-D_FORTIFY_SOURCE=2]) + if test "x$use_toolchain_hardening" = "x1"; then + OSSH_CHECK_LDFLAG_LINK([-Wl,-z,relro]) + OSSH_CHECK_LDFLAG_LINK([-Wl,-z,now]) + OSSH_CHECK_LDFLAG_LINK([-Wl,-z,noexecstack]) + # NB. -ftrapv expects certain support functions to be present in + # the compiler library (libgcc or similar) to detect integer operations + # that can overflow. We must check that the result of enabling it + # actually links. The test program compiled/linked includes a number + # of integer operations that should exercise this. + OSSH_CHECK_CFLAG_LINK([-ftrapv]) + fi AC_MSG_CHECKING([gcc version]) GCC_VER=`$CC -v 2>&1 | $AWK '/gcc version /{print $3}'` case $GCC_VER in @@ -161,7 +197,8 @@ if test "$GCC" = "yes" || test "$GCC" = "egcs"; then # and/or platforms, so we test if we can. If it's not supported # on a given platform gcc will emit a warning so we use -Werror. if test "x$use_stack_protector" = "x1"; then - for t in -fstack-protector-all -fstack-protector; do + for t in -fstack-protector-strong -fstack-protector-all \ + -fstack-protector; do AC_MSG_CHECKING([if $CC supports $t]) saved_CFLAGS="$CFLAGS" saved_LDFLAGS="$LDFLAGS" @@ -210,6 +247,18 @@ if test "$GCC" = "yes" || test "$GCC" = "egcs"; then fi fi +AC_MSG_CHECKING([if compiler allows __attribute__ on return types]) +AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ +#include <stdlib.h> +__attribute__((__unused__)) static void foo(void){return;}]], + [[ exit(0); ]])], + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_RESULT([no]) + AC_DEFINE(NO_ATTRIBUTE_ON_RETURN_TYPE, 1, + [compiler does not accept __attribute__ on return types]) ] +) + if test "x$no_attrib_nonnull" != "x1" ; then AC_DEFINE([HAVE_ATTRIBUTE__NONNULL__], [1], [Have attribute nonnull]) fi @@ -276,11 +325,13 @@ AC_ARG_WITH([Werror], ) AC_CHECK_HEADERS([ \ + blf.h \ bstring.h \ crypt.h \ crypto/sha2.h \ dirent.h \ endian.h \ + elf.h \ features.h \ fcntl.h \ floatingpoint.h \ @@ -288,7 +339,9 @@ AC_CHECK_HEADERS([ \ glob.h \ ia.h \ iaf.h \ + inttypes.h \ limits.h \ + locale.h \ login.h \ maillock.h \ ndir.h \ @@ -311,6 +364,7 @@ AC_CHECK_HEADERS([ \ sys/audit.h \ sys/bitypes.h \ sys/bsdtty.h \ + sys/capability.h \ sys/cdefs.h \ sys/dir.h \ sys/mman.h \ @@ -327,7 +381,6 @@ AC_CHECK_HEADERS([ \ sys/sysmacros.h \ sys/time.h \ sys/timers.h \ - sys/un.h \ time.h \ tmpdir.h \ ttyent.h \ @@ -365,6 +418,12 @@ AC_CHECK_HEADERS([sys/mount.h], [], [], [ #include <sys/param.h> ]) +# Android requires sys/socket.h to be included before sys/un.h +AC_CHECK_HEADERS([sys/un.h], [], [], [ +#include <sys/types.h> +#include <sys/socket.h> +]) + # Messages for features tested for in target-specific section SIA_MSG="no" SPC_MSG="no" @@ -464,6 +523,11 @@ case "$host" in AC_DEFINE([SSHPAM_CHAUTHTOK_NEEDS_RUID], [1], [AIX 5.2 and 5.3 (and presumably newer) require this]) AC_DEFINE([PTY_ZEROREAD], [1], [read(1) can return 0 for a non-closed fd]) + AC_DEFINE([PLATFORM_SYS_DIR_UID], 2, [System dirs owned by bin (uid 2)]) + ;; +*-*-android*) + AC_DEFINE([DISABLE_UTMP], [1], [Define if you don't want to use utmp]) + AC_DEFINE([DISABLE_WTMP], [1], [Define if you don't want to use wtmp]) ;; *-*-cygwin*) check_for_libcrypt_later=1 @@ -481,7 +545,10 @@ case "$host" in [Define if your platform needs to skip post auth file descriptor passing]) AC_DEFINE([SSH_IOBUFSZ], [65535], [Windows is sensitive to read buffer size]) - AC_DEFINE([FILESYSTEM_NO_BACKSLASH], [1], [File names may not contain backslash characters]) + AC_DEFINE([FILESYSTEM_NO_BACKSLASH], [1], [File names may not contain backslash characters]) + # Cygwin defines optargs, optargs as declspec(dllimport) for historical + # reasons which cause compile warnings, so we disable those warnings. + OSSH_CHECK_CFLAG_COMPILE([-Wno-attributes]) ;; *-*-dgux*) AC_DEFINE([IP_TOS_IS_BROKEN], [1], @@ -491,6 +558,7 @@ case "$host" in AC_DEFINE([BROKEN_SETREGID]) ;; *-*-darwin*) + use_pie=auto AC_MSG_CHECKING([if we have working getaddrinfo]) AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include <mach-o/dyld.h> main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16)) @@ -531,6 +599,7 @@ main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16)) ;; *-*-dragonfly*) SSHDLIBS="$SSHDLIBS -lcrypt" + TEST_MALLOC_OPTIONS="AFGJPRX" ;; *-*-haiku*) LIBS="$LIBS -lbsd " @@ -549,6 +618,7 @@ main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16)) AC_DEFINE([LOCKED_PASSWD_STRING], ["*"], [String used in /etc/passwd to denote locked account]) AC_DEFINE([SPT_TYPE], [SPT_PSTAT]) + AC_DEFINE([PLATFORM_SYS_DIR_UID], 2, [System dirs owned by bin (uid 2)]) maildir="/var/mail" LIBS="$LIBS -lsec" AC_CHECK_LIB([xnet], [t_error], , @@ -627,6 +697,7 @@ main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16)) ;; *-*-linux*) no_dev_ptmx=1 + use_pie=auto check_for_libcrypt_later=1 check_for_openpty_ctty_bug=1 AC_DEFINE([PAM_TTY_KLUDGE], [1], @@ -657,6 +728,29 @@ main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16)) AC_DEFINE([SSH_TUN_PREPEND_AF], [1], [Prepend the address family to IP tunnel traffic]) fi + AC_CHECK_HEADERS([linux/seccomp.h linux/filter.h linux/audit.h], [], + [], [#include <linux/types.h>]) + AC_CHECK_FUNCS([prctl]) + AC_MSG_CHECKING([for seccomp architecture]) + seccomp_audit_arch= + case "$host" in + x86_64-*) + seccomp_audit_arch=AUDIT_ARCH_X86_64 + ;; + i*86-*) + seccomp_audit_arch=AUDIT_ARCH_I386 + ;; + arm*-*) + seccomp_audit_arch=AUDIT_ARCH_ARM + ;; + esac + if test "x$seccomp_audit_arch" != "x" ; then + AC_MSG_RESULT(["$seccomp_audit_arch"]) + AC_DEFINE_UNQUOTED([SECCOMP_AUDIT_ARCH], [$seccomp_audit_arch], + [Specify the system call convention in use]) + else + AC_MSG_RESULT([architecture not supported]) + fi ;; mips-sony-bsd|mips-sony-newsos4) AC_DEFINE([NEED_SETPGRP], [1], [Need setpgrp to acquire controlling tty]) @@ -672,6 +766,11 @@ mips-sony-bsd|mips-sony-newsos4) AC_DEFINE([SSH_TUN_NO_L2], [1], [No layer 2 tunnel support])) AC_DEFINE([SSH_TUN_PREPEND_AF], [1], [Prepend the address family to IP tunnel traffic]) + TEST_MALLOC_OPTIONS="AJRX" + AC_DEFINE([BROKEN_STRNVIS], [1], + [NetBSD strnvis argument order is swapped compared to OpenBSD]) + AC_DEFINE([BROKEN_READ_COMPARISON], [1], + [NetBSD read function is sometimes redirected, breaking atomicio comparisons against it]) ;; *-*-freebsd*) check_for_libcrypt_later=1 @@ -680,6 +779,13 @@ mips-sony-bsd|mips-sony-newsos4) AC_CHECK_HEADER([net/if_tap.h], , AC_DEFINE([SSH_TUN_NO_L2], [1], [No layer 2 tunnel support])) AC_DEFINE([BROKEN_GLOB], [1], [FreeBSD glob does not do what we need]) + AC_DEFINE([BROKEN_STRNVIS], [1], + [FreeBSD strnvis argument order is swapped compared to OpenBSD]) + TEST_MALLOC_OPTIONS="AJRX" + # Preauth crypto occasionally uses file descriptors for crypto offload + # and will crash if they cannot be opened. + AC_DEFINE([SANDBOX_SKIP_RLIMIT_NOFILE], [1], + [define if setrlimit RLIMIT_NOFILE breaks things])], ;; *-*-bsdi*) AC_DEFINE([SETEUID_BREAKS_SETUID]) @@ -697,11 +803,13 @@ mips-sony-bsd|mips-sony-newsos4) AC_DEFINE([BROKEN_SAVED_UIDS], [1], [Needed for NeXT]) ;; *-*-openbsd*) + use_pie=auto AC_DEFINE([HAVE_ATTRIBUTE__SENTINEL__], [1], [OpenBSD's gcc has sentinel]) AC_DEFINE([HAVE_ATTRIBUTE__BOUNDED__], [1], [OpenBSD's gcc has bounded]) AC_DEFINE([SSH_TUN_OPENBSD], [1], [Open tunnel devices the OpenBSD way]) AC_DEFINE([SYSLOG_R_SAFE_IN_SIGHAND], [1], [syslog_r function is safe to use in in a signal handler]) + TEST_MALLOC_OPTIONS="AFGJPRX" ;; *-*-solaris*) if test "x$withval" != "xno" ; then @@ -757,6 +865,7 @@ mips-sony-bsd|mips-sony-newsos4) SP_MSG="yes" ], ) ], ) + TEST_SHELL=$SHELL # let configure find us a capable shell ;; *-*-sunos4*) CPPFLAGS="$CPPFLAGS -DSUNOS4" @@ -800,6 +909,7 @@ mips-sony-bsd|mips-sony-newsos4) AC_DEFINE([BROKEN_SETREGID]) AC_DEFINE([PASSWD_NEEDS_USERNAME], [1], [must supply username to passwd]) AC_DEFINE([LOCKED_PASSWD_STRING], ["*LK*"]) + TEST_SHELL=$SHELL # let configure find us a capable shell ;; # UnixWare 7.x, OpenUNIX 8 *-*-sysv5*) @@ -811,10 +921,10 @@ mips-sony-bsd|mips-sony-newsos4) AC_DEFINE([BROKEN_SETREUID]) AC_DEFINE([BROKEN_SETREGID]) AC_DEFINE([PASSWD_NEEDS_USERNAME]) + TEST_SHELL=$SHELL # let configure find us a capable shell case "$host" in *-*-sysv5SCO_SV*) # SCO OpenServer 6.x maildir=/var/spool/mail - TEST_SHELL=/u95/bin/sh AC_DEFINE([BROKEN_LIBIAF], [1], [ia_uinfo routines not supported by OS yet]) AC_DEFINE([BROKEN_UPDWTMPX]) @@ -855,7 +965,8 @@ mips-sony-bsd|mips-sony-newsos4) AC_DEFINE([PASSWD_NEEDS_USERNAME]) AC_CHECK_FUNCS([getluid setluid]) MANTYPE=man - TEST_SHELL=ksh + TEST_SHELL=$SHELL # let configure find us a capable shell + SKIP_DISABLE_LASTLOG_DEFINE=yes ;; *-*-unicosmk*) AC_DEFINE([NO_SSH_LASTLOG], [1], @@ -931,9 +1042,6 @@ mips-sony-bsd|mips-sony-newsos4) *-*-nto-qnx*) AC_DEFINE([USE_PIPES]) AC_DEFINE([NO_X11_UNIX_SOCKETS]) - AC_DEFINE([MISSING_NFDBITS], [1], [Define on *nto-qnx systems]) - AC_DEFINE([MISSING_HOWMANY], [1], [Define on *nto-qnx systems]) - AC_DEFINE([MISSING_FD_MASK], [1], [Define on *nto-qnx systems]) AC_DEFINE([DISABLE_LASTLOG]) AC_DEFINE([SSHD_ACQUIRES_CTTY]) AC_DEFINE([BROKEN_SHADOW_EXPIRE], [1], [QNX shadow support is broken]) @@ -954,7 +1062,6 @@ mips-sony-bsd|mips-sony-newsos4) *-*-lynxos) CFLAGS="$CFLAGS -D__NO_INCLUDE_WARN__" - AC_DEFINE([MISSING_HOWMANY]) AC_DEFINE([BROKEN_SETVBUF], [1], [LynxOS has broken setvbuf() implementation]) ;; esac @@ -1077,6 +1184,7 @@ AC_ARG_WITH([zlib-version-check], AC_MSG_CHECKING([for possibly buggy zlib]) AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h> +#include <stdlib.h> #include <zlib.h> ]], [[ @@ -1124,10 +1232,18 @@ AC_CHECK_FUNCS([utimes], ) dnl Checks for libutil functions -AC_CHECK_HEADERS([libutil.h]) -AC_SEARCH_LIBS([login], [util bsd], [AC_DEFINE([HAVE_LOGIN], [1], - [Define if your libraries define login()])]) -AC_CHECK_FUNCS([fmt_scaled logout updwtmp logwtmp]) +AC_CHECK_HEADERS([bsd/libutil.h libutil.h]) +AC_SEARCH_LIBS([fmt_scaled], [util bsd]) +AC_SEARCH_LIBS([scan_scaled], [util bsd]) +AC_SEARCH_LIBS([login], [util bsd]) +AC_SEARCH_LIBS([logout], [util bsd]) +AC_SEARCH_LIBS([logwtmp], [util bsd]) +AC_SEARCH_LIBS([openpty], [util bsd]) +AC_SEARCH_LIBS([updwtmp], [util bsd]) +AC_CHECK_FUNCS([fmt_scaled scan_scaled login logout openpty updwtmp logwtmp]) + +# On some platforms, inet_ntop may be found in libresolv or libnsl. +AC_SEARCH_LIBS([inet_ntop], [resolv nsl]) AC_FUNC_STRFTIME @@ -1361,7 +1477,7 @@ AC_ARG_WITH([libedit], [ --with-libedit[[=PATH]] Enable libedit support for sftp], [ if test "x$withval" != "xno" ; then if test "x$withval" = "xyes" ; then - AC_PATH_PROG([PKGCONFIG], [pkg-config], [no]) + AC_PATH_TOOL([PKGCONFIG], [pkg-config], [no]) if test "x$PKGCONFIG" != "xno"; then AC_MSG_CHECKING([if $PKGCONFIG knows about libedit]) if "$PKGCONFIG" libedit; then @@ -1380,7 +1496,7 @@ AC_ARG_WITH([libedit], fi fi if test "x$use_pkgconfig_for_libedit" = "xyes"; then - LIBEDIT=`$PKGCONFIG --libs-only-l libedit` + LIBEDIT=`$PKGCONFIG --libs libedit` CPPFLAGS="$CPPFLAGS `$PKGCONFIG --cflags libedit`" else LIBEDIT="-ledit -lcurses" @@ -1434,6 +1550,11 @@ AC_ARG_WITH([audit], # These are optional AC_CHECK_FUNCS([getaudit_addr aug_get_machine]) AC_DEFINE([USE_BSM_AUDIT], [1], [Use BSM audit module]) + if test "$sol2ver" -ge 11; then + SSHDLIBS="$SSHDLIBS -lscf" + AC_DEFINE([BROKEN_BSM_API], [1], + [The system has incomplete BSM API]) + fi ;; linux) AC_MSG_RESULT([linux]) @@ -1457,10 +1578,62 @@ AC_ARG_WITH([audit], esac ] ) +AC_ARG_WITH([pie], + [ --with-pie Build Position Independent Executables if possible], [ + if test "x$withval" = "xno"; then + use_pie=no + fi + if test "x$withval" = "xyes"; then + use_pie=yes + fi + ] +) +if test "x$use_pie" = "x"; then + use_pie=no +fi +if test "x$use_toolchain_hardening" != "x1" && test "x$use_pie" = "xauto"; then + # Turn off automatic PIE when toolchain hardening is off. + use_pie=no +fi +if test "x$use_pie" = "xauto"; then + # Automatic PIE requires gcc >= 4.x + AC_MSG_CHECKING([for gcc >= 4.x]) + AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ +#if !defined(__GNUC__) || __GNUC__ < 4 +#error gcc is too old +#endif +]])], + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_RESULT([no]) + use_pie=no ] +) +fi +if test "x$use_pie" != "xno"; then + SAVED_CFLAGS="$CFLAGS" + SAVED_LDFLAGS="$LDFLAGS" + OSSH_CHECK_CFLAG_COMPILE([-fPIE]) + OSSH_CHECK_LDFLAG_LINK([-pie]) + # We use both -fPIE and -pie or neither. + AC_MSG_CHECKING([whether both -fPIE and -pie are supported]) + if echo "x $CFLAGS" | grep ' -fPIE' >/dev/null 2>&1 && \ + echo "x $LDFLAGS" | grep ' -pie' >/dev/null 2>&1 ; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + CFLAGS="$SAVED_CFLAGS" + LDFLAGS="$SAVED_LDFLAGS" + fi +fi + dnl Checks for library functions. Please keep in alphabetical order AC_CHECK_FUNCS([ \ + Blowfish_initstate \ + Blowfish_expandstate \ + Blowfish_expand0state \ + Blowfish_stream2word \ arc4random \ arc4random_buf \ + arc4random_stir \ arc4random_uniform \ asprintf \ b64_ntop \ @@ -1468,13 +1641,18 @@ AC_CHECK_FUNCS([ \ b64_pton \ __b64_pton \ bcopy \ + bcrypt_pbkdf \ bindresvport_sa \ + blf_enc \ + cap_rights_limit \ clock \ closefrom \ dirfd \ + endgrent \ fchmod \ fchown \ freeaddrinfo \ + fstatfs \ fstatvfs \ futimes \ getaddrinfo \ @@ -1484,6 +1662,8 @@ AC_CHECK_FUNCS([ \ getopt \ getpeereid \ getpeerucred \ + getpgid \ + getpgrp \ _getpty \ getrlimit \ getttyent \ @@ -1494,6 +1674,7 @@ AC_CHECK_FUNCS([ \ inet_ntop \ innetgr \ login_getcapbool \ + mblen \ md5_crypt \ memmove \ mkdtemp \ @@ -1502,7 +1683,6 @@ AC_CHECK_FUNCS([ \ nsleep \ ogetaddrinfo \ openlog_r \ - openpty \ poll \ prctl \ pstat \ @@ -1517,6 +1697,7 @@ AC_CHECK_FUNCS([ \ seteuid \ setgroupent \ setgroups \ + setlinebuf \ setlogin \ setpassent\ setpcred \ @@ -1543,6 +1724,7 @@ AC_CHECK_FUNCS([ \ strtonum \ strtoll \ strtoul \ + strtoull \ swap32 \ sysconf \ tcgetpgrp \ @@ -1551,6 +1733,7 @@ AC_CHECK_FUNCS([ \ unsetenv \ updwtmpx \ user_from_uid \ + usleep \ vasprintf \ vhangup \ vsnprintf \ @@ -1588,6 +1771,9 @@ const char *gai_strerror(int); AC_SEARCH_LIBS([nanosleep], [rt posix4], [AC_DEFINE([HAVE_NANOSLEEP], [1], [Some systems put nanosleep outside of libc])]) +AC_SEARCH_LIBS([clock_gettime], [rt], + [AC_DEFINE([HAVE_CLOCK_GETTIME], [1], [Have clock_gettime])]) + dnl Make sure prototypes are defined for these before using them. AC_CHECK_DECL([getrusage], [AC_CHECK_FUNCS([getrusage])]) AC_CHECK_DECL([strsep], @@ -1639,6 +1825,37 @@ AC_CHECK_DECLS([offsetof], , , [ #include <stddef.h> ]) +# extra bits for select(2) +AC_CHECK_DECLS([howmany, NFDBITS], [], [], [[ +#include <sys/param.h> +#include <sys/types.h> +#ifdef HAVE_SYS_SYSMACROS_H +#include <sys/sysmacros.h> +#endif +#ifdef HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#endif +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + ]]) +AC_CHECK_TYPES([fd_mask], [], [], [[ +#include <sys/param.h> +#include <sys/types.h> +#ifdef HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#endif +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + ]]) + AC_CHECK_FUNCS([setresuid], [ dnl Some platorms have setresuid that isn't implemented, test for this AC_MSG_CHECKING([if setresuid seems to work]) @@ -2205,7 +2422,17 @@ AC_LINK_IFELSE( ] ) -AC_CHECK_FUNCS([RSA_generate_key_ex DSA_generate_parameters_ex BN_is_prime_ex RSA_get_default_method HMAC_CTX_init]) +AC_CHECK_FUNCS([ \ + BN_is_prime_ex \ + DSA_generate_parameters_ex \ + EVP_DigestInit_ex \ + EVP_DigestFinal_ex \ + EVP_MD_CTX_init \ + EVP_MD_CTX_cleanup \ + HMAC_CTX_init \ + RSA_generate_key_ex \ + RSA_get_default_method \ +]) AC_ARG_WITH([ssl-engine], [ --with-ssl-engine Enable OpenSSL (hardware) ENGINE support ], @@ -2244,6 +2471,58 @@ AC_LINK_IFELSE( ] ) +# Check for OpenSSL with EVP_aes_*ctr +AC_MSG_CHECKING([whether OpenSSL has AES CTR via EVP]) +AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[ +#include <string.h> +#include <openssl/evp.h> + ]], [[ + exit(EVP_aes_128_ctr() == NULL || + EVP_aes_192_cbc() == NULL || + EVP_aes_256_cbc() == NULL); + ]])], + [ + AC_MSG_RESULT([yes]) + AC_DEFINE([OPENSSL_HAVE_EVPCTR], [1], + [libcrypto has EVP AES CTR]) + ], + [ + AC_MSG_RESULT([no]) + ] +) + +# Check for OpenSSL with EVP_aes_*gcm +AC_MSG_CHECKING([whether OpenSSL has AES GCM via EVP]) +AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[ +#include <string.h> +#include <openssl/evp.h> + ]], [[ + exit(EVP_aes_128_gcm() == NULL || + EVP_aes_256_gcm() == NULL || + EVP_CTRL_GCM_SET_IV_FIXED == 0 || + EVP_CTRL_GCM_IV_GEN == 0 || + EVP_CTRL_GCM_SET_TAG == 0 || + EVP_CTRL_GCM_GET_TAG == 0 || + EVP_CIPHER_CTX_ctrl(NULL, 0, 0, NULL) == 0); + ]])], + [ + AC_MSG_RESULT([yes]) + AC_DEFINE([OPENSSL_HAVE_EVPGCM], [1], + [libcrypto has EVP AES GCM]) + ], + [ + AC_MSG_RESULT([no]) + unsupported_algorithms="$unsupported_cipers \ + aes128-gcm@openssh.com aes256-gcm@openssh.com" + ] +) + +AC_SEARCH_LIBS([EVP_CIPHER_CTX_ctrl], [crypto], + [AC_DEFINE([HAVE_EVP_CIPHER_CTX_CTRL], [1], + [Define if libcrypto has EVP_CIPHER_CTX_ctrl])]) + AC_MSG_CHECKING([if EVP_DigestUpdate returns an int]) AC_LINK_IFELSE( [AC_LANG_PROGRAM([[ @@ -2274,14 +2553,61 @@ fi if test "x$check_for_libcrypt_later" = "x1"; then AC_CHECK_LIB([crypt], [crypt], [LIBS="$LIBS -lcrypt"]) fi +AC_CHECK_FUNCS([crypt DES_crypt]) # Search for SHA256 support in libc and/or OpenSSL -AC_CHECK_FUNCS([SHA256_Update EVP_sha256], [TEST_SSH_SHA256=yes], - [TEST_SSH_SHA256=no]) -AC_SUBST([TEST_SSH_SHA256]) +AC_CHECK_FUNCS([SHA256_Update EVP_sha256], , + [unsupported_algorithms="$unsupported_algorithms \ + hmac-sha2-256 hmac-sha2-512 \ + diffie-hellman-group-exchange-sha256 \ + hmac-sha2-256-etm@openssh.com hmac-sha2-512-etm@openssh.com" + ] +) # Check complete ECC support in OpenSSL -AC_MSG_CHECKING([whether OpenSSL has complete ECC support]) +AC_MSG_CHECKING([whether OpenSSL has NID_X9_62_prime256v1]) +AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[ +#include <openssl/ec.h> +#include <openssl/ecdh.h> +#include <openssl/ecdsa.h> +#include <openssl/evp.h> +#include <openssl/objects.h> +#include <openssl/opensslv.h> +#if OPENSSL_VERSION_NUMBER < 0x0090807f /* 0.9.8g */ +# error "OpenSSL < 0.9.8g has unreliable ECC code" +#endif + ]], [[ + EC_KEY *e = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); + const EVP_MD *m = EVP_sha256(); /* We need this too */ + ]])], + [ AC_MSG_RESULT([yes]) + enable_nistp256=1 ], + [ AC_MSG_RESULT([no]) ] +) + +AC_MSG_CHECKING([whether OpenSSL has NID_secp384r1]) +AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[ +#include <openssl/ec.h> +#include <openssl/ecdh.h> +#include <openssl/ecdsa.h> +#include <openssl/evp.h> +#include <openssl/objects.h> +#include <openssl/opensslv.h> +#if OPENSSL_VERSION_NUMBER < 0x0090807f /* 0.9.8g */ +# error "OpenSSL < 0.9.8g has unreliable ECC code" +#endif + ]], [[ + EC_KEY *e = EC_KEY_new_by_curve_name(NID_secp384r1); + const EVP_MD *m = EVP_sha384(); /* We need this too */ + ]])], + [ AC_MSG_RESULT([yes]) + enable_nistp384=1 ], + [ AC_MSG_RESULT([no]) ] +) + +AC_MSG_CHECKING([whether OpenSSL has NID_secp521r1]) AC_LINK_IFELSE( [AC_LANG_PROGRAM([[ #include <openssl/ec.h> @@ -2297,19 +2623,63 @@ AC_LINK_IFELSE( EC_KEY *e = EC_KEY_new_by_curve_name(NID_secp521r1); const EVP_MD *m = EVP_sha512(); /* We need this too */ ]])], - [ - AC_MSG_RESULT([yes]) - AC_DEFINE([OPENSSL_HAS_ECC], [1], - [libcrypto includes complete ECC support]) - TEST_SSH_ECC=yes - COMMENT_OUT_ECC="" - ], - [ - AC_MSG_RESULT([no]) - TEST_SSH_ECC=no - COMMENT_OUT_ECC="#no ecc#" - ] + [ AC_MSG_RESULT([yes]) + AC_MSG_CHECKING([if OpenSSL's NID_secp521r1 is functional]) + AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +#include <openssl/ec.h> +#include <openssl/ecdh.h> +#include <openssl/ecdsa.h> +#include <openssl/evp.h> +#include <openssl/objects.h> +#include <openssl/opensslv.h> + ]],[[ + EC_KEY *e = EC_KEY_new_by_curve_name(NID_secp521r1); + const EVP_MD *m = EVP_sha512(); /* We need this too */ + exit(e == NULL || m == NULL); + ]])], + [ AC_MSG_RESULT([yes]) + enable_nistp521=1 ], + [ AC_MSG_RESULT([no]) ], + [ AC_MSG_WARN([cross-compiling: assuming yes]) + enable_nistp521=1 ] + )], + AC_MSG_RESULT([no]) ) + +COMMENT_OUT_ECC="#no ecc#" +TEST_SSH_ECC=no + +if test x$enable_nistp256 = x1 || test x$enable_nistp384 = x1 || \ + test x$enable_nistp521 = x1; then + AC_DEFINE(OPENSSL_HAS_ECC, [1], [OpenSSL has ECC]) +fi +if test x$enable_nistp256 = x1; then + AC_DEFINE([OPENSSL_HAS_NISTP256], [1], + [libcrypto has NID_X9_62_prime256v1]) + TEST_SSH_ECC=yes + COMMENT_OUT_ECC="" +else + unsupported_algorithms="$unsupported_algorithms ecdsa-sha2-nistp256 \ + ecdh-sha2-nistp256 ecdsa-sha2-nistp256-cert-v01@openssh.com" +fi +if test x$enable_nistp384 = x1; then + AC_DEFINE([OPENSSL_HAS_NISTP384], [1], [libcrypto has NID_secp384r1]) + TEST_SSH_ECC=yes + COMMENT_OUT_ECC="" +else + unsupported_algorithms="$unsupported_algorithms ecdsa-sha2-nistp384 \ + ecdh-sha2-nistp384 ecdsa-sha2-nistp384-cert-v01@openssh.com" +fi +if test x$enable_nistp521 = x1; then + AC_DEFINE([OPENSSL_HAS_NISTP521], [1], [libcrypto has NID_secp521r1]) + TEST_SSH_ECC=yes + COMMENT_OUT_ECC="" +else + unsupported_algorithms="$unsupported_algorithms ecdh-sha2-nistp521 \ + ecdsa-sha2-nistp521 ecdsa-sha2-nistp521-cert-v01@openssh.com" +fi + AC_SUBST([TEST_SSH_ECC]) AC_SUBST([COMMENT_OUT_ECC]) @@ -2510,10 +2880,38 @@ AC_DEFINE_UNQUOTED([SSH_PRIVSEP_USER], ["$SSH_PRIVSEP_USER"], [non-privileged user for privilege separation]) AC_SUBST([SSH_PRIVSEP_USER]) +if test "x$have_linux_no_new_privs" = "x1" ; then +AC_CHECK_DECL([SECCOMP_MODE_FILTER], [have_seccomp_filter=1], , [ + #include <sys/types.h> + #include <linux/seccomp.h> +]) +fi +if test "x$have_seccomp_filter" = "x1" ; then +AC_MSG_CHECKING([kernel for seccomp_filter support]) +AC_LINK_IFELSE([AC_LANG_PROGRAM([[ + #include <errno.h> + #include <elf.h> + #include <linux/audit.h> + #include <linux/seccomp.h> + #include <stdlib.h> + #include <sys/prctl.h> + ]], + [[ int i = $seccomp_audit_arch; + errno = 0; + prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, NULL, 0, 0); + exit(errno == EFAULT ? 0 : 1); ]])], + [ AC_MSG_RESULT([yes]) ], [ + AC_MSG_RESULT([no]) + # Disable seccomp filter as a target + have_seccomp_filter=0 + ] +) +fi + # Decide which sandbox style to use sandbox_arg="" AC_ARG_WITH([sandbox], - [ --with-sandbox=style Specify privilege separation sandbox (no, darwin, rlimit, systrace)], + [ --with-sandbox=style Specify privilege separation sandbox (no, darwin, rlimit, systrace, seccomp_filter, capsicum)], [ if test "x$withval" = "xyes" ; then sandbox_arg="" @@ -2522,6 +2920,93 @@ AC_ARG_WITH([sandbox], fi ] ) + +# Some platforms (seems to be the ones that have a kernel poll(2)-type +# function with which they implement select(2)) use an extra file descriptor +# when calling select(2), which means we can't use the rlimit sandbox. +AC_MSG_CHECKING([if select works with descriptor rlimit]) +AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +#include <sys/types.h> +#ifdef HAVE_SYS_TIME_H +# include <sys/time.h> +#endif +#include <sys/resource.h> +#ifdef HAVE_SYS_SELECT_H +# include <sys/select.h> +#endif +#include <errno.h> +#include <fcntl.h> +#include <stdlib.h> + ]],[[ + struct rlimit rl_zero; + int fd, r; + fd_set fds; + struct timeval tv; + + fd = open("/dev/null", O_RDONLY); + FD_ZERO(&fds); + FD_SET(fd, &fds); + rl_zero.rlim_cur = rl_zero.rlim_max = 0; + setrlimit(RLIMIT_FSIZE, &rl_zero); + setrlimit(RLIMIT_NOFILE, &rl_zero); + tv.tv_sec = 1; + tv.tv_usec = 0; + r = select(fd+1, &fds, NULL, NULL, &tv); + exit (r == -1 ? 1 : 0); + ]])], + [AC_MSG_RESULT([yes]) + select_works_with_rlimit=yes], + [AC_MSG_RESULT([no]) + select_works_with_rlimit=no], + [AC_MSG_WARN([cross compiling: assuming yes])] +) + +AC_MSG_CHECKING([if setrlimit(RLIMIT_NOFILE,{0,0}) works]) +AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +#include <sys/types.h> +#ifdef HAVE_SYS_TIME_H +# include <sys/time.h> +#endif +#include <sys/resource.h> +#include <errno.h> +#include <stdlib.h> + ]],[[ + struct rlimit rl_zero; + int fd, r; + fd_set fds; + + rl_zero.rlim_cur = rl_zero.rlim_max = 0; + r = setrlimit(RLIMIT_NOFILE, &rl_zero); + exit (r == -1 ? 1 : 0); + ]])], + [AC_MSG_RESULT([yes]) + rlimit_nofile_zero_works=yes], + [AC_MSG_RESULT([no]) + rlimit_nofile_zero_works=no], + [AC_MSG_WARN([cross compiling: assuming yes])] +) + +AC_MSG_CHECKING([if setrlimit RLIMIT_FSIZE works]) +AC_RUN_IFELSE( + [AC_LANG_PROGRAM([[ +#include <sys/types.h> +#include <sys/resource.h> +#include <stdlib.h> + ]],[[ + struct rlimit rl_zero; + + rl_zero.rlim_cur = rl_zero.rlim_max = 0; + exit(setrlimit(RLIMIT_FSIZE, &rl_zero) != 0); + ]])], + [AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no]) + AC_DEFINE(SANDBOX_SKIP_RLIMIT_FSIZE, 1, + [setrlimit RLIMIT_FSIZE works])], + [AC_MSG_WARN([cross compiling: assuming yes])] +) + if test "x$sandbox_arg" = "xsystrace" || \ ( test -z "$sandbox_arg" && test "x$have_systr_policy_kill" = "x1" ) ; then test "x$have_systr_policy_kill" != "x1" && \ @@ -2536,10 +3021,43 @@ elif test "x$sandbox_arg" = "xdarwin" || \ AC_MSG_ERROR([Darwin seatbelt sandbox requires sandbox.h and sandbox_init function]) SANDBOX_STYLE="darwin" AC_DEFINE([SANDBOX_DARWIN], [1], [Sandbox using Darwin sandbox_init(3)]) +elif test "x$sandbox_arg" = "xseccomp_filter" || \ + ( test -z "$sandbox_arg" && \ + test "x$have_seccomp_filter" = "x1" && \ + test "x$ac_cv_header_elf_h" = "xyes" && \ + test "x$ac_cv_header_linux_audit_h" = "xyes" && \ + test "x$ac_cv_header_linux_filter_h" = "xyes" && \ + test "x$seccomp_audit_arch" != "x" && \ + test "x$have_linux_no_new_privs" = "x1" && \ + test "x$ac_cv_func_prctl" = "xyes" ) ; then + test "x$seccomp_audit_arch" = "x" && \ + AC_MSG_ERROR([seccomp_filter sandbox not supported on $host]) + test "x$have_linux_no_new_privs" != "x1" && \ + AC_MSG_ERROR([seccomp_filter sandbox requires PR_SET_NO_NEW_PRIVS]) + test "x$have_seccomp_filter" != "x1" && \ + AC_MSG_ERROR([seccomp_filter sandbox requires seccomp headers]) + test "x$ac_cv_func_prctl" != "xyes" && \ + AC_MSG_ERROR([seccomp_filter sandbox requires prctl function]) + SANDBOX_STYLE="seccomp_filter" + AC_DEFINE([SANDBOX_SECCOMP_FILTER], [1], [Sandbox using seccomp filter]) +elif test "x$sandbox_arg" = "xcapsicum" || \ + ( test -z "$sandbox_arg" && \ + test "x$ac_cv_header_sys_capability_h" = "xyes" && \ + test "x$ac_cv_func_cap_rights_limit" = "xyes") ; then + test "x$ac_cv_header_sys_capability_h" != "xyes" && \ + AC_MSG_ERROR([capsicum sandbox requires sys/capability.h header]) + test "x$ac_cv_func_cap_rights_limit" != "xyes" && \ + AC_MSG_ERROR([capsicum sandbox requires cap_rights_limit function]) + SANDBOX_STYLE="capsicum" + AC_DEFINE([SANDBOX_CAPSICUM], [1], [Sandbox using capsicum]) elif test "x$sandbox_arg" = "xrlimit" || \ - ( test -z "$sandbox_arg" && test "x$ac_cv_func_setrlimit" = "xyes" ) ; then + ( test -z "$sandbox_arg" && test "x$ac_cv_func_setrlimit" = "xyes" && \ + test "x$select_works_with_rlimit" = "xyes" && \ + test "x$rlimit_nofile_zero_works" = "xyes" ) ; then test "x$ac_cv_func_setrlimit" != "xyes" && \ AC_MSG_ERROR([rlimit sandbox requires setrlimit function]) + test "x$select_works_with_rlimit" != "xyes" && \ + AC_MSG_ERROR([rlimit sandbox requires select to work with rlimit]) SANDBOX_STYLE="rlimit" AC_DEFINE([SANDBOX_RLIMIT], [1], [Sandbox using setrlimit(2)]) elif test -z "$sandbox_arg" || test "x$sandbox_arg" = "xno" || \ @@ -2755,7 +3273,9 @@ if test "x$ac_cv_have_u_int64_t" = "xyes" ; then have_u_int64_t=1 fi -if test -z "$have_u_int64_t" ; then +if (test -z "$have_u_int64_t" && \ + test "x$ac_cv_header_sys_bitypes_h" = "xyes") +then AC_MSG_CHECKING([for u_int64_t type in sys/bitypes.h]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/bitypes.h> ]], [[ u_int64_t a; a = 1]])], @@ -2785,7 +3305,9 @@ if test -z "$have_u_intxx_t" ; then fi fi -if test -z "$have_uintxx_t" ; then +if (test -z "$have_uintxx_t" && \ + test "x$ac_cv_header_stdint_h" = "xyes") +then AC_MSG_CHECKING([for uintXX_t types in stdint.h]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <stdint.h> ]], [[ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1;]])], @@ -2796,6 +3318,19 @@ if test -z "$have_uintxx_t" ; then ]) fi +if (test -z "$have_uintxx_t" && \ + test "x$ac_cv_header_inttypes_h" = "xyes") +then + AC_MSG_CHECKING([for uintXX_t types in inttypes.h]) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <inttypes.h> ]], + [[ uint8_t a; uint16_t b; uint32_t c; a = b = c = 1;]])], + [ + AC_DEFINE([HAVE_UINTXX_T]) + AC_MSG_RESULT([yes]) + ], [ AC_MSG_RESULT([no]) + ]) +fi + if (test -z "$have_u_intxx_t" || test -z "$have_intxx_t" && \ test "x$ac_cv_header_sys_bitypes_h" = "xyes") then @@ -2826,6 +3361,11 @@ if test "x$ac_cv_have_u_char" = "xyes" ; then AC_DEFINE([HAVE_U_CHAR], [1], [define if you have u_char data type]) fi +AC_CHECK_TYPES([intmax_t, uintmax_t], , , [ +#include <sys/types.h> +#include <stdint.h> +]) + TYPE_SOCKLEN_T AC_CHECK_TYPES([sig_atomic_t], , , [#include <signal.h>]) @@ -3057,9 +3597,16 @@ OSSH_CHECK_HEADER_FOR_FIELD([ut_time], [utmpx.h], [HAVE_TIME_IN_UTMPX]) OSSH_CHECK_HEADER_FOR_FIELD([ut_tv], [utmpx.h], [HAVE_TV_IN_UTMPX]) AC_CHECK_MEMBERS([struct stat.st_blksize]) +AC_CHECK_MEMBERS([struct passwd.pw_gecos, struct passwd.pw_class, +struct passwd.pw_change, struct passwd.pw_expire], +[], [], [[ +#include <sys/types.h> +#include <pwd.h> +]]) + AC_CHECK_MEMBER([struct __res_state.retrans], [], [AC_DEFINE([__res_state], [state], [Define if we don't have struct __res_state in resolv.h])], -[ +[[ #include <stdio.h> #if HAVE_SYS_TYPES_H # include <sys/types.h> @@ -3067,7 +3614,7 @@ AC_CHECK_MEMBER([struct __res_state.retrans], [], [AC_DEFINE([__res_state], [sta #include <netinet/in.h> #include <arpa/nameser.h> #include <resolv.h> -]) +]]) AC_CACHE_CHECK([for ss_family field in struct sockaddr_storage], ac_cv_have_ss_family_in_struct_ss, [ @@ -3097,45 +3644,6 @@ if test "x$ac_cv_have___ss_family_in_struct_ss" = "xyes" ; then [Fields in struct sockaddr_storage]) fi -AC_CACHE_CHECK([for pw_class field in struct passwd], - ac_cv_have_pw_class_in_struct_passwd, [ - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <pwd.h> ]], - [[ struct passwd p; p.pw_class = 0; ]])], - [ ac_cv_have_pw_class_in_struct_passwd="yes" ], - [ ac_cv_have_pw_class_in_struct_passwd="no" - ]) -]) -if test "x$ac_cv_have_pw_class_in_struct_passwd" = "xyes" ; then - AC_DEFINE([HAVE_PW_CLASS_IN_PASSWD], [1], - [Define if your password has a pw_class field]) -fi - -AC_CACHE_CHECK([for pw_expire field in struct passwd], - ac_cv_have_pw_expire_in_struct_passwd, [ - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <pwd.h> ]], - [[ struct passwd p; p.pw_expire = 0; ]])], - [ ac_cv_have_pw_expire_in_struct_passwd="yes" ], - [ ac_cv_have_pw_expire_in_struct_passwd="no" - ]) -]) -if test "x$ac_cv_have_pw_expire_in_struct_passwd" = "xyes" ; then - AC_DEFINE([HAVE_PW_EXPIRE_IN_PASSWD], [1], - [Define if your password has a pw_expire field]) -fi - -AC_CACHE_CHECK([for pw_change field in struct passwd], - ac_cv_have_pw_change_in_struct_passwd, [ - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <pwd.h> ]], - [[ struct passwd p; p.pw_change = 0; ]])], - [ ac_cv_have_pw_change_in_struct_passwd="yes" ], - [ ac_cv_have_pw_change_in_struct_passwd="no" - ]) -]) -if test "x$ac_cv_have_pw_change_in_struct_passwd" = "xyes" ; then - AC_DEFINE([HAVE_PW_CHANGE_IN_PASSWD], [1], - [Define if your password has a pw_change field]) -fi - dnl make sure we're using the real structure members and not defines AC_CACHE_CHECK([for msg_accrights field in struct msghdr], ac_cv_have_accrights_in_msghdr, [ @@ -3164,7 +3672,7 @@ fi AC_MSG_CHECKING([if struct statvfs.f_fsid is integral type]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ -#include <sys/types.h> +#include <sys/param.h> #include <sys/stat.h> #ifdef HAVE_SYS_TIME_H # include <sys/time.h> @@ -3427,6 +3935,9 @@ AC_ARG_WITH([kerberos5], [$KRB5ROOT/bin/krb5-config], [$KRB5ROOT/bin:$PATH]) if test -x $KRB5CONF ; then + K5CFLAGS="`$KRB5CONF --cflags`" + K5LIBS="`$KRB5CONF --libs`" + CPPFLAGS="$CPPFLAGS $K5CFLAGS" AC_MSG_CHECKING([for gssapi support]) if $KRB5CONF | grep gssapi >/dev/null ; then @@ -3434,14 +3945,12 @@ AC_ARG_WITH([kerberos5], AC_DEFINE([GSSAPI], [1], [Define this if you want GSSAPI support in the version 2 protocol]) - k5confopts=gssapi + GSSCFLAGS="`$KRB5CONF --cflags gssapi`" + GSSLIBS="`$KRB5CONF --libs gssapi`" + CPPFLAGS="$CPPFLAGS $GSSCFLAGS" else AC_MSG_RESULT([no]) - k5confopts="" fi - K5CFLAGS="`$KRB5CONF --cflags $k5confopts`" - K5LIBS="`$KRB5CONF --libs $k5confopts`" - CPPFLAGS="$CPPFLAGS $K5CFLAGS" AC_MSG_CHECKING([whether we are using Heimdal]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <krb5.h> ]], [[ char *tmp = heimdal_version; ]])], @@ -3473,14 +3982,16 @@ AC_ARG_WITH([kerberos5], AC_CHECK_LIB([gssapi_krb5], [gss_init_sec_context], [ AC_DEFINE([GSSAPI]) - K5LIBS="-lgssapi_krb5 $K5LIBS" ], + GSSLIBS="-lgssapi_krb5" ], [ AC_CHECK_LIB([gssapi], [gss_init_sec_context], [ AC_DEFINE([GSSAPI]) - K5LIBS="-lgssapi $K5LIBS" ], - AC_MSG_WARN([Cannot find any suitable gss-api library - build may fail]), - $K5LIBS) - ], - $K5LIBS) + GSSLIBS="-lgssapi" ], + [ AC_CHECK_LIB([gss], [gss_init_sec_context], + [ AC_DEFINE([GSSAPI]) + GSSLIBS="-lgss" ], + AC_MSG_WARN([Cannot find any suitable gss-api library - build may fail])) + ]) + ]) AC_CHECK_HEADER([gssapi.h], , [ unset ac_cv_header_gssapi_h @@ -3508,12 +4019,32 @@ AC_ARG_WITH([kerberos5], AC_CHECK_HEADERS([gssapi_krb5.h gssapi/gssapi_krb5.h]) AC_CHECK_HEADERS([gssapi_generic.h gssapi/gssapi_generic.h]) - LIBS="$LIBS $K5LIBS" AC_SEARCH_LIBS([k_hasafs], [kafs], [AC_DEFINE([USE_AFS], [1], [Define this if you want to use libkafs' AFS support])]) + + AC_CHECK_DECLS([GSS_C_NT_HOSTBASED_SERVICE], [], [], [[ +#ifdef HAVE_GSSAPI_H +# include <gssapi.h> +#elif defined(HAVE_GSSAPI_GSSAPI_H) +# include <gssapi/gssapi.h> +#endif + +#ifdef HAVE_GSSAPI_GENERIC_H +# include <gssapi_generic.h> +#elif defined(HAVE_GSSAPI_GSSAPI_GENERIC_H) +# include <gssapi/gssapi_generic.h> +#endif + ]]) + saved_LIBS="$LIBS" + LIBS="$LIBS $K5LIBS" + AC_CHECK_FUNCS([krb5_cc_new_unique krb5_get_error_message krb5_free_error_message]) + LIBS="$saved_LIBS" + fi ] ) +AC_SUBST([GSSLIBS]) +AC_SUBST([K5LIBS]) # Looking for programs, paths and files @@ -3872,13 +4403,16 @@ otherwise scp will not work.]) [ user_path="/usr/bin:/bin:/usr/sbin:/sbin" ] ) # make sure $bindir is in USER_PATH so scp will work - t_bindir=`eval echo ${bindir}` - case $t_bindir in - NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$prefix~"` ;; - esac - case $t_bindir in - NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$ac_default_prefix~"` ;; - esac + t_bindir="${bindir}" + while echo "${t_bindir}" | egrep '\$\{|NONE/' >/dev/null 2>&1; do + t_bindir=`eval echo ${t_bindir}` + case $t_bindir in + NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$prefix~"` ;; + esac + case $t_bindir in + NONE/*) t_bindir=`echo $t_bindir | sed "s~NONE~$ac_default_prefix~"` ;; + esac + done echo $user_path | grep ":$t_bindir" > /dev/null 2>&1 if test $? -ne 0 ; then echo $user_path | grep "^$t_bindir" > /dev/null 2>&1 @@ -4177,7 +4711,6 @@ if test -n "$conf_wtmp_location"; then [Define if you want to specify the path to your wtmp file]) fi - dnl wtmpx detection AC_MSG_CHECKING([if your system defines WTMPX_FILE]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ @@ -4209,6 +4742,43 @@ if test ! -z "$blibpath" ; then AC_MSG_WARN([Please check and edit blibpath in LDFLAGS in Makefile]) fi +AC_CHECK_MEMBER([struct lastlog.ll_line], [], [ + if test x$SKIP_DISABLE_LASTLOG_DEFINE != "xyes" ; then + AC_DEFINE([DISABLE_LASTLOG]) + fi + ], [ +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_UTMP_H +#include <utmp.h> +#endif +#ifdef HAVE_UTMPX_H +#include <utmpx.h> +#endif +#ifdef HAVE_LASTLOG_H +#include <lastlog.h> +#endif + ]) + +AC_CHECK_MEMBER([struct utmp.ut_line], [], [ + AC_DEFINE([DISABLE_UTMP]) + AC_DEFINE([DISABLE_WTMP]) + ], [ +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_UTMP_H +#include <utmp.h> +#endif +#ifdef HAVE_UTMPX_H +#include <utmpx.h> +#endif +#ifdef HAVE_LASTLOG_H +#include <lastlog.h> +#endif + ]) + dnl Adding -Werror to CFLAGS early prevents configure tests from running. dnl Add now. CFLAGS="$CFLAGS $werror_flags" @@ -4220,6 +4790,8 @@ else fi AC_CHECK_DECL([BROKEN_GETADDRINFO], [TEST_SSH_IPV6=no]) AC_SUBST([TEST_SSH_IPV6], [$TEST_SSH_IPV6]) +AC_SUBST([TEST_MALLOC_OPTIONS], [$TEST_MALLOC_OPTIONS]) +AC_SUBST([UNSUPPORTED_ALGORITHMS], [$unsupported_algorithms]) AC_EXEEXT AC_CONFIG_FILES([Makefile buildpkg.sh opensshd.init openssh.xml \ diff --git a/contrib/Makefile b/contrib/Makefile index 8b34eb22..c6c48e78 100644 --- a/contrib/Makefile +++ b/contrib/Makefile @@ -1,3 +1,5 @@ +PKG_CONFIG = pkg-config + all: @echo "Valid targets: gnome-ssh-askpass1 gnome-ssh-askpass2" @@ -7,9 +9,9 @@ gnome-ssh-askpass1: gnome-ssh-askpass1.c `gnome-config --libs gnome gnomeui` gnome-ssh-askpass2: gnome-ssh-askpass2.c - $(CC) `pkg-config --cflags gtk+-2.0` \ + $(CC) `$(PKG_CONFIG) --cflags gtk+-2.0` \ gnome-ssh-askpass2.c -o gnome-ssh-askpass2 \ - `pkg-config --libs gtk+-2.0 x11` + `$(PKG_CONFIG) --libs gtk+-2.0 x11` clean: rm -f *.o gnome-ssh-askpass1 gnome-ssh-askpass2 gnome-ssh-askpass diff --git a/contrib/caldera/openssh.spec b/contrib/caldera/openssh.spec index 29129917..3c417bb8 100644 --- a/contrib/caldera/openssh.spec +++ b/contrib/caldera/openssh.spec @@ -16,7 +16,7 @@ #old cvs stuff. please update before use. may be deprecated. %define use_stable 1 -%define version 5.9p1 +%define version 6.5p1 %if %{use_stable} %define cvs %{nil} %define release 1 @@ -363,4 +363,4 @@ fi * Mon Jan 01 1998 ... Template Version: 1.31 -$Id: openssh.spec,v 1.76 2011/09/05 00:29:06 djm Exp $ +$Id: openssh.spec,v 1.82 2014/01/16 07:51:10 djm Exp $ diff --git a/contrib/cygwin/README b/contrib/cygwin/README index 5f911e92..2562b618 100644 --- a/contrib/cygwin/README +++ b/contrib/cygwin/README @@ -4,115 +4,18 @@ The binary package is usually built for recent Cygwin versions and might not run on older versions. Please check http://cygwin.com/ for information about current Cygwin releases. -Build instructions are at the end of the file. - -=========================================================================== -Important change since 3.7.1p2-2: - -The ssh-host-config file doesn't create the /etc/ssh_config and -/etc/sshd_config files from builtin here-scripts anymore, but it uses -skeleton files installed in /etc/defaults/etc. - -Also it now tries hard to create appropriate permissions on files. -Same applies for ssh-user-config. - -After creating the sshd service with ssh-host-config, it's advisable to -call ssh-user-config for all affected users, also already exising user -configurations. In the latter case, file and directory permissions are -checked and changed, if requireed to match the host configuration. - -Important note for Windows 2003 Server users: ---------------------------------------------- - -2003 Server has a funny new feature. When starting services under SYSTEM -account, these services have nearly all user rights which SYSTEM holds... -except for the "Create a token object" right, which is needed to allow -public key authentication :-( - -There's no way around this, except for creating a substitute account which -has the appropriate privileges. Basically, this account should be member -of the administrators group, plus it should have the following user rights: - - Create a token object - Logon as a service - Replace a process level token - Increase Quota - -The ssh-host-config script asks you, if it should create such an account, -called "sshd_server". If you say "no" here, you're on your own. Please -follow the instruction in ssh-host-config exactly if possible. Note that -ssh-user-config sets the permissions on 2003 Server machines dependent of -whether a sshd_server account exists or not. -=========================================================================== - -=========================================================================== -Important change since 3.4p1-2: - -This version adds privilege separation as default setting, see -/usr/doc/openssh/README.privsep. According to that document the -privsep feature requires a non-privileged account called 'sshd'. - -The new ssh-host-config file which is part of this version asks -to create 'sshd' as local user if you want to use privilege -separation. If you confirm, it creates that NT user and adds -the necessary entry to /etc/passwd. - -On 9x/Me systems the script just sets UsePrivilegeSeparation to "no" -since that feature doesn't make any sense on a system which doesn't -differ between privileged and unprivileged users. - -The new ssh-host-config script also adds the /var/empty directory -needed by privilege separation. When creating the /var/empty directory -by yourself, please note that in contrast to the README.privsep document -the owner sshould not be "root" but the user which is running sshd. So, -in the standard configuration this is SYSTEM. The ssh-host-config script -chowns /var/empty accordingly. -=========================================================================== - -=========================================================================== -Important change since 3.0.1p1-2: - -This version introduces the ability to register sshd as service on -Windows 9x/Me systems. This is done only when the options -D and/or --d are not given. -=========================================================================== - -=========================================================================== -Important change since 2.9p2: - -Since Cygwin is able to switch user context without password beginning -with version 1.3.2, OpenSSH now allows to do so when it's running under -a version >= 1.3.2. Keep in mind that `ntsec' has to be activated to -allow that feature. -=========================================================================== - -=========================================================================== -Important change since 2.3.0p1: - -When using `ntea' or `ntsec' you now have to care for the ownership -and permission bits of your host key files and your private key files. -The host key files have to be owned by the NT account which starts -sshd. The user key files have to be owned by the user. The permission -bits of the private key files (host and user) have to be at least -rw------- (0600)! - -Note that this is forced under `ntsec' only if the files are on a NTFS -filesystem (which is recommended) due to the lack of any basic security -features of the FAT/FAT32 filesystems. -=========================================================================== +================== +Host configuration +================== If you are installing OpenSSH the first time, you can generate global config -files and server keys by running +files and server keys, as well as installing sshd as a service, by running /usr/bin/ssh-host-config Note that this binary archive doesn't contain default config files in /etc. That files are only created if ssh-host-config is started. -If you are updating your installation you may run the above ssh-host-config -as well to move your configuration files to the new location and to -erase the files at the old location. - To support testing and unattended installation ssh-host-config got some options: @@ -123,16 +26,25 @@ Options: --no -n Answer all questions with "no" automatically. --cygwin -c <options> Use "options" as value for CYGWIN environment var. --port -p <n> sshd listens on port n. - --pwd -w <passwd> Use "pwd" as password for user 'sshd_server'. + --user -u <account> privileged user for service, default 'cyg_server'. + --pwd -w <passwd> Use "pwd" as password for privileged user. + --privileged On Windows XP, require privileged user + instead of LocalSystem for sshd service. -Additionally ssh-host-config now asks if it should install sshd as a -service when running under NT/W2K. This requires cygrunsrv installed. +Installing sshd as daemon via ssh-host-config is recommended. -You can create the private and public keys for a user now by running +Alternatively you can start sshd via inetd, if you have the inetutils +package installed. Just run ssh-host-config, but answer "no" when asked +to install sshd as service. The ssh-host-config script also adds the +required lines to /etc/inetd.conf and /etc/services. - /usr/bin/ssh-user-config +================== +User configuration +================== + +Any user can simplify creating the own private and public keys by running -under the users account. + /usr/bin/ssh-user-config To support testing and unattended installation ssh-user-config got some options as well: @@ -144,88 +56,30 @@ Options: --no -n Answer all questions with "no" automatically. --passphrase -p word Use "word" as passphrase automatically. -Install sshd as daemon via cygrunsrv.exe (recommended on NT/W2K), via inetd -(results in very slow deamon startup!) or from the command line (recommended -on 9X/ME). - -If you start sshd as deamon via cygrunsrv.exe you MUST give the -"-D" option to sshd. Otherwise the service can't get started at all. - -If starting via inetd, copy sshd to eg. /usr/sbin/in.sshd and add the -following line to your inetd.conf file: - -ssh stream tcp nowait root /usr/sbin/in.sshd sshd -i - -Moreover you'll have to add the following line to your -${SYSTEMROOT}/system32/drivers/etc/services file: - - ssh 22/tcp #SSH daemon - Please note that OpenSSH does never use the value of $HOME to search for the users configuration files! It always uses the value of the pw_dir field in /etc/passwd as the home directory. If no home diretory is set in /etc/passwd, the root directory is used instead! -You may use all features of the CYGWIN=ntsec setting the same -way as they are used by Cygwin's login(1) port: - - The pw_gecos field may contain an additional field, that begins - with (upper case!) "U-", followed by the domain and the username - separated by a backslash. - CAUTION: The SID _must_ remain the _last_ field in pw_gecos! - BTW: The field separator in pw_gecos is the comma. - The username in pw_name itself may be any nice name: - - domuser::1104:513:John Doe,U-domain\user,S-1-5-21-... - - Now you may use `domuser' as your login name with telnet! - This is possible additionally for local users, if you don't like - your NT login name ;-) You only have to leave out the domain: - - locuser::1104:513:John Doe,U-user,S-1-5-21-... - -Note that the CYGWIN=ntsec setting is required for public key authentication. - -SSH2 server and user keys are generated by the `ssh-*-config' scripts -as well. - -If you want to build from source, the following options to -configure are used for the Cygwin binary distribution: - - --prefix=/usr \ - --sysconfdir=/etc \ - --libexecdir='${sbindir}' \ - --localstatedir=/var \ - --datadir='${prefix}/share' \ - --mandir='${datadir}/man' \ - --infodir='${datadir}/info' - --with-tcp-wrappers - --with-libedit - -If you want to create a Cygwin package, equivalent to the one -in the Cygwin binary distribution, install like this: - - mkdir /tmp/cygwin-ssh - cd ${builddir} - make install DESTDIR=/tmp/cygwin-ssh - cd ${srcdir}/contrib/cygwin - make cygwin-postinstall DESTDIR=/tmp/cygwin-ssh - cd /tmp/cygwin-ssh - find * \! -type d | tar cvjfT my-openssh.tar.bz2 - - -You must have installed the following packages to be able to build OpenSSH: - -- zlib -- openssl-devel +================ +Building OpenSSH +================ -If you want to build with --with-tcp-wrappers, you also need the package +Building from source is easy. Just unpack the source archive, cd to that +directory, and call cygport: -- tcp_wrappers + cygport openssh.cygport almostall -If you want to build with --with-libedit, you also need the package +You must have installed the following packages to be able to build OpenSSH +with the aforementioned cygport script: -- libedit-devel + zlib + crypt + openssl-devel + libwrap-devel + libedit-devel + libkrb5-devel Please send requests, error reports etc. to cygwin@cygwin.com. diff --git a/contrib/cygwin/ssh-host-config b/contrib/cygwin/ssh-host-config index 3ac39a62..05efd3b3 100644 --- a/contrib/cygwin/ssh-host-config +++ b/contrib/cygwin/ssh-host-config @@ -68,54 +68,6 @@ password_value= opt_force=no # ====================================================================== -# Routine: create_host_keys -# ====================================================================== -create_host_keys() { - local ret=0 - - if [ ! -f "${SYSCONFDIR}/ssh_host_key" ] - then - csih_inform "Generating ${SYSCONFDIR}/ssh_host_key" - if ! /usr/bin/ssh-keygen -t rsa1 -f ${SYSCONFDIR}/ssh_host_key -N '' > /dev/null - then - csih_warning "Generating ${SYSCONFDIR}/ssh_host_key failed!" - let ++ret - fi - fi - - if [ ! -f "${SYSCONFDIR}/ssh_host_rsa_key" ] - then - csih_inform "Generating ${SYSCONFDIR}/ssh_host_rsa_key" - if ! /usr/bin/ssh-keygen -t rsa -f ${SYSCONFDIR}/ssh_host_rsa_key -N '' > /dev/null - then - csih_warning "Generating ${SYSCONFDIR}/ssh_host_key failed!" - let ++ret - fi - fi - - if [ ! -f "${SYSCONFDIR}/ssh_host_dsa_key" ] - then - csih_inform "Generating ${SYSCONFDIR}/ssh_host_dsa_key" - if ! /usr/bin/ssh-keygen -t dsa -f ${SYSCONFDIR}/ssh_host_dsa_key -N '' > /dev/null - then - csih_warning "Generating ${SYSCONFDIR}/ssh_host_key failed!" - let ++ret - fi - fi - - if [ ! -f "${SYSCONFDIR}/ssh_host_ecdsa_key" ] - then - csih_inform "Generating ${SYSCONFDIR}/ssh_host_ecdsa_key" - if ! /usr/bin/ssh-keygen -t ecdsa -f ${SYSCONFDIR}/ssh_host_ecdsa_key -N '' > /dev/null - then - csih_warning "Generating ${SYSCONFDIR}/ssh_host_key failed!" - let ++ret - fi - fi - return $ret -} # --- End of create_host_keys --- # - -# ====================================================================== # Routine: update_services_file # ====================================================================== update_services_file() { @@ -493,6 +445,7 @@ install_service() { -a "-D" -y tcpip "${cygwin_env[@]}" \ -u "${run_service_as}" -w "${password}" then + /usr/bin/editrights -u "${run_service_as}" -a SeServiceLogonRight echo csih_inform "The sshd service has been installed under the '${run_service_as}'" csih_inform "account. To start the service now, call \`net start sshd' or" @@ -605,9 +558,9 @@ do echo " --no -n Answer all questions with \"no\" automatically." echo " --cygwin -c <options> Use \"options\" as value for CYGWIN environment var." echo " --port -p <n> sshd listens on port n." - echo " --user -u <account> privileged user for service." + echo " --user -u <account> privileged user for service, default 'cyg_server'." echo " --pwd -w <passwd> Use \"pwd\" as password for privileged user." - echo " --privileged On Windows NT/2k/XP, require privileged user" + echo " --privileged On Windows XP, require privileged user" echo " instead of LocalSystem for sshd service." echo exit 1 @@ -718,8 +671,8 @@ then let ++warning_cnt fi -# host keys -create_host_keys || let warning_cnt+=$? +# generate missing host keys +/usr/bin/ssh-keygen -A || let warning_cnt+=$? # handle ssh_config csih_install_config "${SYSCONFDIR}/ssh_config" "${SYSCONFDIR}/defaults" || let ++warning_cnt diff --git a/contrib/cygwin/ssh-user-config b/contrib/cygwin/ssh-user-config index 027ae603..8708b7a5 100644 --- a/contrib/cygwin/ssh-user-config +++ b/contrib/cygwin/ssh-user-config @@ -222,10 +222,6 @@ do shift ;; - --privileged ) - csih_FORCE_PRIVILEGED_USER=yes - ;; - *) echo "usage: ${PROGNAME} [OPTION]..." echo @@ -236,8 +232,6 @@ do echo " --yes -y Answer all questions with \"yes\" automatically." echo " --no -n Answer all questions with \"no\" automatically." echo " --passphrase -p word Use \"word\" as passphrase automatically." - echo " --privileged On Windows NT/2k/XP, assume privileged user" - echo " instead of LocalSystem for sshd service." echo exit 1 ;; diff --git a/contrib/redhat/openssh.spec b/contrib/redhat/openssh.spec index be6de088..d47cf386 100644 --- a/contrib/redhat/openssh.spec +++ b/contrib/redhat/openssh.spec @@ -1,4 +1,4 @@ -%define ver 5.9p1 +%define ver 6.5p1 %define rel 1 # OpenSSH privilege separation requires a user & group ID @@ -335,7 +335,7 @@ fi %files %defattr(-,root,root) -%doc CREDITS ChangeLog INSTALL LICENCE OVERVIEW README* PROTOCOL* TODO WARNING* +%doc CREDITS ChangeLog INSTALL LICENCE OVERVIEW README* PROTOCOL* TODO %attr(0755,root,root) %{_bindir}/scp %attr(0644,root,root) %{_mandir}/man1/scp.1* %attr(0755,root,root) %dir %{_sysconfdir}/ssh diff --git a/contrib/redhat/sshd.init b/contrib/redhat/sshd.init index e9a75179..40c8dfd9 100755 --- a/contrib/redhat/sshd.init +++ b/contrib/redhat/sshd.init @@ -29,7 +29,7 @@ do_restart_sanity_check() { $SSHD -t RETVAL=$? - if [ ! "$RETVAL" = 0 ]; then + if [ $RETVAL -ne 0 ]; then failure $"Configuration file or keys are invalid" echo fi @@ -49,7 +49,7 @@ start() echo -n $"Starting $prog:" $SSHD $OPTIONS && success || failure RETVAL=$? - [ "$RETVAL" = 0 ] && touch /var/lock/subsys/sshd + [ $RETVAL -eq 0 ] && touch /var/lock/subsys/sshd echo } @@ -58,7 +58,7 @@ stop() echo -n $"Stopping $prog:" killproc $SSHD -TERM RETVAL=$? - [ "$RETVAL" = 0 ] && rm -f /var/lock/subsys/sshd + [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/sshd echo } @@ -87,7 +87,7 @@ case "$1" in condrestart) if [ -f /var/lock/subsys/sshd ] ; then do_restart_sanity_check - if [ "$RETVAL" = 0 ] ; then + if [ $RETVAL -eq 0 ] ; then stop # avoid race sleep 3 diff --git a/contrib/ssh-copy-id b/contrib/ssh-copy-id index 9451acee..ae88e995 100644 --- a/contrib/ssh-copy-id +++ b/contrib/ssh-copy-id @@ -1,54 +1,300 @@ #!/bin/sh -# Shell script to install your public key on a remote machine -# Takes the remote machine name as an argument. -# Obviously, the remote machine must accept password authentication, -# or one of the other keys in your ssh-agent, for this to work. - -ID_FILE="${HOME}/.ssh/id_rsa.pub" - -if [ "-i" = "$1" ]; then - shift - # check if we have 2 parameters left, if so the first is the new ID file - if [ -n "$2" ]; then - if expr "$1" : ".*\.pub" > /dev/null ; then - ID_FILE="$1" - else - ID_FILE="$1.pub" - fi - shift # and this should leave $1 as the target name +# Copyright (c) 1999-2013 Philip Hands <phil@hands.com> +# 2013 Martin Kletzander <mkletzan@redhat.com> +# 2010 Adeodato =?iso-8859-1?Q?Sim=F3?= <asp16@alu.ua.es> +# 2010 Eric Moret <eric.moret@gmail.com> +# 2009 Xr <xr@i-jeuxvideo.com> +# 2007 Justin Pryzby <justinpryzby@users.sourceforge.net> +# 2004 Reini Urban <rurban@x-ray.at> +# 2003 Colin Watson <cjwatson@debian.org> +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +# Shell script to install your public key(s) on a remote machine +# See the ssh-copy-id(1) man page for details + +# check that we have something mildly sane as our shell, or try to find something better +if false ^ printf "%s: WARNING: ancient shell, hunting for a more modern one... " "$0" +then + SANE_SH=${SANE_SH:-/usr/bin/ksh} + if printf 'true ^ false\n' | "$SANE_SH" + then + printf "'%s' seems viable.\n" "$SANE_SH" + exec "$SANE_SH" "$0" "$@" + else + cat <<-EOF + oh dear. + + If you have a more recent shell available, that supports \$(...) etc. + please try setting the environment variable SANE_SH to the path of that + shell, and then retry running this script. If that works, please report + a bug describing your setup, and the shell you used to make it work. + + EOF + printf "%s: ERROR: Less dimwitted shell required.\n" "$0" + exit 1 fi -else - if [ x$SSH_AUTH_SOCK != x ] && ssh-add -L >/dev/null 2>&1; then - GET_ID="$GET_ID ssh-add -L" +fi + +DEFAULT_PUB_ID_FILE=$(ls -t ${HOME}/.ssh/id*.pub 2>/dev/null | grep -v -- '-cert.pub$' | head -n 1) + +usage () { + printf 'Usage: %s [-h|-?|-n] [-i [identity_file]] [-p port] [[-o <ssh -o options>] ...] [user@]hostname\n' "$0" >&2 + exit 1 +} + +# escape any single quotes in an argument +quote() { + printf "%s\n" "$1" | sed -e "s/'/'\\\\''/g" +} + +use_id_file() { + local L_ID_FILE="$1" + + if expr "$L_ID_FILE" : ".*\.pub$" >/dev/null ; then + PUB_ID_FILE="$L_ID_FILE" + else + PUB_ID_FILE="$L_ID_FILE.pub" fi + + PRIV_ID_FILE=$(dirname "$PUB_ID_FILE")/$(basename "$PUB_ID_FILE" .pub) + + # check that the files are readable + for f in $PUB_ID_FILE $PRIV_ID_FILE ; do + ErrMSG=$( { : < $f ; } 2>&1 ) || { + printf "\n%s: ERROR: failed to open ID file '%s': %s\n\n" "$0" "$f" "$(printf "%s\n" "$ErrMSG" | sed -e 's/.*: *//')" + exit 1 + } + done + GET_ID="cat \"$PUB_ID_FILE\"" +} + +if [ -n "$SSH_AUTH_SOCK" ] && ssh-add -L >/dev/null 2>&1 ; then + GET_ID="ssh-add -L" fi -if [ -z "`eval $GET_ID`" ] && [ -r "${ID_FILE}" ] ; then - GET_ID="cat \"${ID_FILE}\"" +while test "$#" -gt 0 +do + [ "${SEEN_OPT_I}" ] && expr "$1" : "[-]i" >/dev/null && { + printf "\n%s: ERROR: -i option must not be specified more than once\n\n" "$0" + usage + } + + OPT= OPTARG= + # implement something like getopt to avoid Solaris pain + case "$1" in + -i?*|-o?*|-p?*) + OPT="$(printf -- "$1"|cut -c1-2)" + OPTARG="$(printf -- "$1"|cut -c3-)" + shift + ;; + -o|-p) + OPT="$1" + OPTARG="$2" + shift 2 + ;; + -i) + OPT="$1" + test "$#" -le 2 || expr "$2" : "[-]" >/dev/null || { + OPTARG="$2" + shift + } + shift + ;; + -n|-h|-\?) + OPT="$1" + OPTARG= + shift + ;; + --) + shift + while test "$#" -gt 0 + do + SAVEARGS="${SAVEARGS:+$SAVEARGS }'$(quote "$1")'" + shift + done + break + ;; + -*) + printf "\n%s: ERROR: invalid option (%s)\n\n" "$0" "$1" + usage + ;; + *) + SAVEARGS="${SAVEARGS:+$SAVEARGS }'$(quote "$1")'" + shift + continue + ;; + esac + + case "$OPT" in + -i) + SEEN_OPT_I="yes" + use_id_file "${OPTARG:-$DEFAULT_PUB_ID_FILE}" + ;; + -o|-p) + SSH_OPTS="${SSH_OPTS:+$SSH_OPTS }$OPT '$(quote "$OPTARG")'" + ;; + -n) + DRY_RUN=1 + ;; + -h|-\?) + usage + ;; + esac +done + +eval set -- "$SAVEARGS" + +if [ $# = 0 ] ; then + usage +fi +if [ $# != 1 ] ; then + printf '%s: ERROR: Too many arguments. Expecting a target hostname, got: %s\n\n' "$0" "$SAVEARGS" >&2 + usage fi -if [ -z "`eval $GET_ID`" ]; then - echo "$0: ERROR: No identities found" >&2 - exit 1 +# drop trailing colon +USER_HOST=$(printf "%s\n" "$1" | sed 's/:$//') +# tack the hostname onto SSH_OPTS +SSH_OPTS="${SSH_OPTS:+$SSH_OPTS }'$(quote "$USER_HOST")'" +# and populate "$@" for later use (only way to get proper quoting of options) +eval set -- "$SSH_OPTS" + +if [ -z "$(eval $GET_ID)" ] && [ -r "${PUB_ID_FILE:=$DEFAULT_PUB_ID_FILE}" ] ; then + use_id_file "$PUB_ID_FILE" fi -if [ "$#" -lt 1 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then - echo "Usage: $0 [-i [identity_file]] [user@]machine" >&2 +if [ -z "$(eval $GET_ID)" ] ; then + printf '%s: ERROR: No identities found\n' "$0" >&2 exit 1 fi -# strip any trailing colon -host=`echo $1 | sed 's/:$//'` +# populate_new_ids() uses several global variables ($USER_HOST, $SSH_OPTS ...) +# and has the side effect of setting $NEW_IDS +populate_new_ids() { + local L_SUCCESS="$1" + + # repopulate "$@" inside this function + eval set -- "$SSH_OPTS" + + umask 0177 + local L_TMP_ID_FILE=$(mktemp ~/.ssh/ssh-copy-id_id.XXXXXXXXXX) + if test $? -ne 0 || test "x$L_TMP_ID_FILE" = "x" ; then + echo "mktemp failed" 1>&2 + exit 1 + fi + trap "rm -f $L_TMP_ID_FILE ${L_TMP_ID_FILE}.pub" EXIT TERM INT QUIT + printf '%s: INFO: attempting to log in with the new key(s), to filter out any that are already installed\n' "$0" >&2 + NEW_IDS=$( + eval $GET_ID | { + while read ID ; do + printf '%s\n' "$ID" > $L_TMP_ID_FILE + + # the next line assumes $PRIV_ID_FILE only set if using a single id file - this + # assumption will break if we implement the possibility of multiple -i options. + # The point being that if file based, ssh needs the private key, which it cannot + # find if only given the contents of the .pub file in an unrelated tmpfile + ssh -i "${PRIV_ID_FILE:-$L_TMP_ID_FILE}" \ + -o PreferredAuthentications=publickey \ + -o IdentitiesOnly=yes "$@" exit 2>$L_TMP_ID_FILE.stderr </dev/null + if [ "$?" = "$L_SUCCESS" ] ; then + : > $L_TMP_ID_FILE + else + grep 'Permission denied' $L_TMP_ID_FILE.stderr >/dev/null || { + sed -e 's/^/ERROR: /' <$L_TMP_ID_FILE.stderr >$L_TMP_ID_FILE + cat >/dev/null #consume the other keys, causing loop to end + } + fi -{ eval "$GET_ID" ; } | ssh $host "umask 077; test -d ~/.ssh || mkdir ~/.ssh ; cat >> ~/.ssh/authorized_keys" || exit 1 + cat $L_TMP_ID_FILE + done + } + ) + rm -f $L_TMP_ID_FILE* && trap - EXIT TERM INT QUIT -cat <<EOF -Now try logging into the machine, with "ssh '$host'", and check in: + if expr "$NEW_IDS" : "^ERROR: " >/dev/null ; then + printf '\n%s: %s\n\n' "$0" "$NEW_IDS" >&2 + exit 1 + fi + if [ -z "$NEW_IDS" ] ; then + printf '\n%s: WARNING: All keys were skipped because they already exist on the remote system.\n\n' "$0" >&2 + exit 0 + fi + printf '%s: INFO: %d key(s) remain to be installed -- if you are prompted now it is to install the new keys\n' "$0" "$(printf '%s\n' "$NEW_IDS" | wc -l)" >&2 +} - ~/.ssh/authorized_keys +REMOTE_VERSION=$(ssh -v -o PreferredAuthentications=',' "$@" 2>&1 | + sed -ne 's/.*remote software version //p') -to make sure we haven't added extra keys that you weren't expecting. +case "$REMOTE_VERSION" in + NetScreen*) + populate_new_ids 1 + for KEY in $(printf "%s" "$NEW_IDS" | cut -d' ' -f2) ; do + KEY_NO=$(($KEY_NO + 1)) + printf "%s\n" "$KEY" | grep ssh-dss >/dev/null || { + printf '%s: WARNING: Non-dsa key (#%d) skipped (NetScreen only supports DSA keys)\n' "$0" "$KEY_NO" >&2 + continue + } + [ "$DRY_RUN" ] || printf 'set ssh pka-dsa key %s\nsave\nexit\n' "$KEY" | ssh -T "$@" >/dev/null 2>&1 + if [ $? = 255 ] ; then + printf '%s: ERROR: installation of key #%d failed (please report a bug describing what caused this, so that we can make this message useful)\n' "$0" "$KEY_NO" >&2 + else + ADDED=$(($ADDED + 1)) + fi + done + if [ -z "$ADDED" ] ; then + exit 1 + fi + ;; + *) + # Assuming that the remote host treats ~/.ssh/authorized_keys as one might expect + populate_new_ids 0 + [ "$DRY_RUN" ] || printf '%s\n' "$NEW_IDS" | ssh "$@" " + umask 077 ; + mkdir -p .ssh && cat >> .ssh/authorized_keys || exit 1 ; + if type restorecon >/dev/null 2>&1 ; then restorecon -F .ssh .ssh/authorized_keys ; fi" \ + || exit 1 + ADDED=$(printf '%s\n' "$NEW_IDS" | wc -l) + ;; +esac -EOF +if [ "$DRY_RUN" ] ; then + cat <<-EOF + =-=-=-=-=-=-=-= + Would have added the following key(s): + + $NEW_IDS + =-=-=-=-=-=-=-= + EOF +else + cat <<-EOF + + Number of key(s) added: $ADDED + + Now try logging into the machine, with: "ssh $SSH_OPTS" + and check to make sure that only the key(s) you wanted were added. + + EOF +fi +# =-=-=-= diff --git a/contrib/ssh-copy-id.1 b/contrib/ssh-copy-id.1 index cb15ab24..67a59e49 100644 --- a/contrib/ssh-copy-id.1 +++ b/contrib/ssh-copy-id.1 @@ -1,75 +1,186 @@ .ig \" -*- nroff -*- -Copyright (c) 1999 Philip Hands Computing <http://www.hands.com/> +Copyright (c) 1999-2013 hands.com Ltd. <http://hands.com/> -Permission is granted to make and distribute verbatim copies of -this manual provided the copyright notice and this permission notice -are preserved on all copies. +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. -Permission is granted to copy and distribute modified versions of this -manual under the conditions for verbatim copying, provided that the -entire resulting derived work is distributed under the terms of a -permission notice identical to this one. - -Permission is granted to copy and distribute translations of this -manual into another language, under the above conditions for modified -versions, except that this permission notice may be included in -translations approved by the Free Software Foundation instead of in -the original English. +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .. -.TH SSH-COPY-ID 1 "14 November 1999" "OpenSSH" -.SH NAME -ssh-copy-id \- install your public key in a remote machine's authorized_keys -.SH SYNOPSIS -.B ssh-copy-id [-i [identity_file]] -.I "[user@]machine" +.Dd $Mdocdate: June 17 2010 $ +.Dt SSH-COPY-ID 1 +.Os +.Sh NAME +.Nm ssh-copy-id +.Nd use locally available keys to authorise logins on a remote machine +.Sh SYNOPSIS +.Nm +.Op Fl n +.Op Fl i Op Ar identity_file +.Op Fl p Ar port +.Op Fl o Ar ssh_option +.Op Ar user Ns @ Ns +.Ar hostname +.Nm +.Fl h | Fl ? .br -.SH DESCRIPTION -.BR ssh-copy-id -is a script that uses ssh to log into a remote machine and -append the indicated identity file to that machine's -.B ~/.ssh/authorized_keys -file. -.PP -If the -.B -i -option is given then the identity file (defaults to -.BR ~/.ssh/id_rsa.pub ) -is used, regardless of whether there are any keys in your -.BR ssh-agent . -Otherwise, if this: -.PP -.B " ssh-add -L" -.PP -provides any output, it uses that in preference to the identity file. -.PP -If the -.B -i -option is used, or the -.B ssh-add -produced no output, then it uses the contents of the identity -file. Once it has one or more fingerprints (by whatever means) it -uses ssh to append them to -.B ~/.ssh/authorized_keys -on the remote machine (creating the file, and directory, if necessary.) - -.SH NOTES -This program does not modify the permissions of any -pre-existing files or directories. Therefore, if the remote -.B sshd -has -.B StrictModes -set in its -configuration, then the user's home, -.B ~/.ssh -folder, and -.B ~/.ssh/authorized_keys -file may need to have group writability disabled manually, e.g. via - -.B " chmod go-w ~ ~/.ssh ~/.ssh/authorized_keys" - -on the remote machine. - -.SH "SEE ALSO" -.BR ssh (1), -.BR ssh-agent (1), -.BR sshd (8) +.Sh DESCRIPTION +.Nm +is a script that uses +.Xr ssh 1 +to log into a remote machine (presumably using a login password, +so password authentication should be enabled, unless you've done some +clever use of multiple identities). It assembles a list of one or more +fingerprints (as described below) and tries to log in with each key, to +see if any of them are already installed (of course, if you are not using +.Xr ssh-agent 1 +this may result in you being repeatedly prompted for pass-phrases). +It then assembles a list of those that failed to log in, and using ssh, +enables logins with those keys on the remote server. By default it adds +the keys by appending them to the remote user's +.Pa ~/.ssh/authorized_keys +(creating the file, and directory, if necessary). It is also capable +of detecting if the remote system is a NetScreen, and using its +.Ql set ssh pka-dsa key ... +command instead. +.Pp +The options are as follows: +.Bl -tag -width Ds +.It Fl i Ar identity_file +Use only the key(s) contained in +.Ar identity_file +(rather than looking for identities via +.Xr ssh-add 1 +or in the +.Ic default_ID_file ) . +If the filename does not end in +.Pa .pub +this is added. If the filename is omitted, the +.Ic default_ID_file +is used. +.Pp +Note that this can be used to ensure that the keys copied have the +comment one prefers and/or extra options applied, by ensuring that the +key file has these set as preferred before the copy is attempted. +.It Fl n +do a dry-run. Instead of installing keys on the remote system simply +prints the key(s) that would have been installed. +.It Fl h , Fl ? +Print Usage summary +.It Fl p Ar port , Fl o Ar ssh_option +These two options are simply passed through untouched, along with their +argument, to allow one to set the port or other +.Xr ssh 1 +options, respectively. +.Pp +Rather than specifying these as command line options, it is often better to use (per-host) settings in +.Xr ssh 1 Ns 's +configuration file: +.Xr ssh_config 5 . +.El +.Pp +Default behaviour without +.Fl i , +is to check if +.Ql ssh-add -L +provides any output, and if so those keys are used. Note that this results in +the comment on the key being the filename that was given to +.Xr ssh-add 1 +when the key was loaded into your +.Xr ssh-agent 1 +rather than the comment contained in that file, which is a bit of a shame. +Otherwise, if +.Xr ssh-add 1 +provides no keys contents of the +.Ic default_ID_file +will be used. +.Pp +The +.Ic default_ID_file +is the most recent file that matches: +.Pa ~/.ssh/id*.pub , +(excluding those that match +.Pa ~/.ssh/*-cert.pub ) +so if you create a key that is not the one you want +.Nm +to use, just use +.Xr touch 1 +on your preferred key's +.Pa .pub +file to reinstate it as the most recent. +.Pp +.Sh EXAMPLES +If you have already installed keys from one system on a lot of remote +hosts, and you then create a new key, on a new client machine, say, +it can be difficult to keep track of which systems on which you've +installed the new key. One way of dealing with this is to load both +the new key and old key(s) into your +.Xr ssh-agent 1 . +Load the new key first, without the +.Fl c +option, then load one or more old keys into the agent, possibly by +ssh-ing to the client machine that has that old key, using the +.Fl A +option to allow agent forwarding: +.Pp +.D1 user@newclient$ ssh-add +.D1 user@newclient$ ssh -A old.client +.D1 user@oldl$ ssh-add -c +.D1 No ... prompt for pass-phrase ... +.D1 user@old$ logoff +.D1 user@newclient$ ssh someserver +.Pp +now, if the new key is installed on the server, you'll be allowed in +unprompted, whereas if you only have the old key(s) enabled, you'll be +asked for confirmation, which is your cue to log back out and run +.Pp +.D1 user@newclient$ ssh-copy-id -i someserver +.Pp +The reason you might want to specify the -i option in this case is to +ensure that the comment on the installed key is the one from the +.Pa .pub +file, rather than just the filename that was loaded into you agent. +It also ensures that only the id you intended is installed, rather than +all the keys that you have in your +.Xr ssh-agent 1 . +Of course, you can specify another id, or use the contents of the +.Xr ssh-agent 1 +as you prefer. +.Pp +Having mentioned +.Xr ssh-add 1 Ns 's +.Fl c +option, you might consider using this whenever using agent forwarding +to avoid your key being hijacked, but it is much better to instead use +.Xr ssh 1 Ns 's +.Ar ProxyCommand +and +.Fl W +option, +to bounce through remote servers while always doing direct end-to-end +authentication. This way the middle hop(s) don't get access to your +.Xr ssh-agent 1 . +A web search for +.Ql ssh proxycommand nc +should prove enlightening (N.B. the modern approach is to use the +.Fl W +option, rather than +.Xr nc 1 ) . +.Sh "SEE ALSO" +.Xr ssh 1 , +.Xr ssh-agent 1 , +.Xr sshd 8 diff --git a/contrib/suse/openssh.spec b/contrib/suse/openssh.spec index 3a4dfea3..6693fe2b 100644 --- a/contrib/suse/openssh.spec +++ b/contrib/suse/openssh.spec @@ -13,7 +13,7 @@ Summary: OpenSSH, a free Secure Shell (SSH) protocol implementation Name: openssh -Version: 5.9p1 +Version: 6.5p1 URL: http://www.openssh.com/ Release: 1 Source0: openssh-%{version}.tar.gz diff --git a/contrib/suse/rc.sshd b/contrib/suse/rc.sshd index 4a3bc41d..28f28e41 100644 --- a/contrib/suse/rc.sshd +++ b/contrib/suse/rc.sshd @@ -49,7 +49,7 @@ case "$1" in ## Start daemon with startproc(8). If this fails ## the echo return value is set appropriate. - startproc -f -p $SSHD_PIDFILE /usr/sbin/sshd $SSHD_OPTS -o "PidFile=$SSHD_PIDFILE" + startproc -f -p $SSHD_PIDFILE $SSHD_BIN $SSHD_OPTS -o "PidFile=$SSHD_PIDFILE" # Remember status and be verbose rc_status -v @@ -59,7 +59,7 @@ case "$1" in ## Stop daemon with killproc(8) and if this fails ## set echo the echo return value. - killproc -p $SSHD_PIDFILE -TERM /usr/sbin/sshd + killproc -p $SSHD_PIDFILE -TERM $SSHD_BIN # Remember status and be verbose rc_status -v @@ -87,7 +87,7 @@ case "$1" in echo -n "Reload service sshd" - killproc -p $SSHD_PIDFILE -HUP /usr/sbin/sshd + killproc -p $SSHD_PIDFILE -HUP $SSHD_BIN rc_status -v @@ -103,7 +103,7 @@ case "$1" in # 2 - service dead, but /var/lock/ lock file exists # 3 - service not running - checkproc -p $SSHD_PIDFILE /usr/sbin/sshd + checkproc -p $SSHD_PIDFILE $SSHD_BIN rc_status -v ;; diff --git a/crypto_api.h b/crypto_api.h new file mode 100644 index 00000000..5820ce8f --- /dev/null +++ b/crypto_api.h @@ -0,0 +1,44 @@ +/* $OpenBSD: crypto_api.h,v 1.3 2013/12/17 10:36:38 markus Exp $ */ + +/* + * Assembled from generated headers and source files by Markus Friedl. + * Placed in the public domain. + */ + +#ifndef crypto_api_h +#define crypto_api_h + +#ifdef HAVE_STDINT_H +# include <stdint.h> +#endif +#include <stdlib.h> + +typedef int32_t crypto_int32; +typedef uint32_t crypto_uint32; + +#define randombytes(buf, buf_len) arc4random_buf((buf), (buf_len)) + +#define crypto_hashblocks_sha512_STATEBYTES 64U +#define crypto_hashblocks_sha512_BLOCKBYTES 128U + +int crypto_hashblocks_sha512(unsigned char *, const unsigned char *, + unsigned long long); + +#define crypto_hash_sha512_BYTES 64U + +int crypto_hash_sha512(unsigned char *, const unsigned char *, + unsigned long long); + +int crypto_verify_32(const unsigned char *, const unsigned char *); + +#define crypto_sign_ed25519_SECRETKEYBYTES 64U +#define crypto_sign_ed25519_PUBLICKEYBYTES 32U +#define crypto_sign_ed25519_BYTES 64U + +int crypto_sign_ed25519(unsigned char *, unsigned long long *, + const unsigned char *, unsigned long long, const unsigned char *); +int crypto_sign_ed25519_open(unsigned char *, unsigned long long *, + const unsigned char *, unsigned long long, const unsigned char *); +int crypto_sign_ed25519_keypair(unsigned char *, unsigned char *); + +#endif /* crypto_api_h */ @@ -25,7 +25,7 @@ #ifndef _DEFINES_H #define _DEFINES_H -/* $Id: defines.h,v 1.169 2012/02/15 04:13:06 tim Exp $ */ +/* $Id: defines.h,v 1.176 2014/01/17 13:12:38 dtucker Exp $ */ /* Constants */ @@ -171,11 +171,6 @@ enum # define MAP_FAILED ((void *)-1) #endif -/* *-*-nto-qnx doesn't define this constant in the system headers */ -#ifdef MISSING_NFDBITS -# define NFDBITS (8 * sizeof(unsigned long)) -#endif - /* SCO Open Server 3 has INADDR_LOOPBACK defined in rpc/rpc.h but including rpc/rpc.h breaks Solaris 6 @@ -227,11 +222,7 @@ typedef uint16_t u_int16_t; typedef uint32_t u_int32_t; # define HAVE_U_INTXX_T 1 # else -# if (SIZEOF_CHAR == 1) typedef unsigned char u_int8_t; -# else -# error "8 bit int type not found." -# endif # if (SIZEOF_SHORT_INT == 2) typedef unsigned short int u_int16_t; # else @@ -278,11 +269,30 @@ typedef unsigned long long int u_int64_t; # endif #endif +#ifndef HAVE_UINTXX_T +typedef u_int8_t uint8_t; +typedef u_int16_t uint16_t; +typedef u_int32_t uint32_t; +typedef u_int64_t uint64_t; +#endif + +#ifndef HAVE_INTMAX_T +typedef long long intmax_t; +#endif + +#ifndef HAVE_UINTMAX_T +typedef unsigned long long uintmax_t; +#endif + #ifndef HAVE_U_CHAR typedef unsigned char u_char; # define HAVE_U_CHAR #endif /* HAVE_U_CHAR */ +#ifndef ULLONG_MAX +# define ULLONG_MAX ((unsigned long long)-1) +#endif + #ifndef SIZE_T_MAX #define SIZE_T_MAX ULONG_MAX #endif /* SIZE_T_MAX */ @@ -355,11 +365,19 @@ struct winsize { }; #endif -/* *-*-nto-qnx does not define this type in the system headers */ -#ifdef MISSING_FD_MASK +/* bits needed for select that may not be in the system headers */ +#ifndef HAVE_FD_MASK typedef unsigned long int fd_mask; #endif +#if defined(HAVE_DECL_NFDBITS) && HAVE_DECL_NFDBITS == 0 +# define NFDBITS (8 * sizeof(unsigned long)) +#endif + +#if defined(HAVE_DECL_HOWMANY) && HAVE_DECL_HOWMANY == 0 +# define howmany(x,y) (((x)+((y)-1))/(y)) +#endif + /* Paths */ #ifndef _PATH_BSHELL @@ -484,11 +502,6 @@ struct winsize { # define __nonnull__(x) #endif -/* *-*-nto-qnx doesn't define this macro in the system headers */ -#ifdef MISSING_HOWMANY -# define howmany(x,y) (((x)+((y)-1))/(y)) -#endif - #ifndef OSSH_ALIGNBYTES #define OSSH_ALIGNBYTES (sizeof(int) - 1) #endif @@ -804,4 +817,13 @@ struct winsize { # endif #endif +/* + * Platforms that have arc4random_uniform() and not arc4random_stir() + * shouldn't need the latter. + */ +#if defined(HAVE_ARC4RANDOM) && defined(HAVE_ARC4RANDOM_UNIFORM) && \ + !defined(HAVE_ARC4RANDOM_STIR) +# define arc4random_stir() +#endif + #endif /* _DEFINES_H */ @@ -1,4 +1,4 @@ -/* $OpenBSD: dh.c,v 1.49 2011/12/07 05:44:38 djm Exp $ */ +/* $OpenBSD: dh.c,v 1.53 2013/11/21 00:45:44 djm Exp $ */ /* * Copyright (c) 2000 Niels Provos. All rights reserved. * @@ -48,6 +48,7 @@ parse_prime(int linenum, char *line, struct dhgroup *dhg) const char *errstr = NULL; long long n; + dhg->p = dhg->g = NULL; cp = line; if ((arg = strdelim(&cp)) == NULL) return 0; @@ -59,66 +60,85 @@ parse_prime(int linenum, char *line, struct dhgroup *dhg) /* time */ if (cp == NULL || *arg == '\0') - goto fail; + goto truncated; arg = strsep(&cp, " "); /* type */ if (cp == NULL || *arg == '\0') - goto fail; + goto truncated; /* Ensure this is a safe prime */ n = strtonum(arg, 0, 5, &errstr); - if (errstr != NULL || n != MODULI_TYPE_SAFE) + if (errstr != NULL || n != MODULI_TYPE_SAFE) { + error("moduli:%d: type is not %d", linenum, MODULI_TYPE_SAFE); goto fail; + } arg = strsep(&cp, " "); /* tests */ if (cp == NULL || *arg == '\0') - goto fail; + goto truncated; /* Ensure prime has been tested and is not composite */ n = strtonum(arg, 0, 0x1f, &errstr); if (errstr != NULL || - (n & MODULI_TESTS_COMPOSITE) || !(n & ~MODULI_TESTS_COMPOSITE)) + (n & MODULI_TESTS_COMPOSITE) || !(n & ~MODULI_TESTS_COMPOSITE)) { + error("moduli:%d: invalid moduli tests flag", linenum); goto fail; + } arg = strsep(&cp, " "); /* tries */ if (cp == NULL || *arg == '\0') - goto fail; + goto truncated; n = strtonum(arg, 0, 1<<30, &errstr); - if (errstr != NULL || n == 0) + if (errstr != NULL || n == 0) { + error("moduli:%d: invalid primality trial count", linenum); goto fail; + } strsize = strsep(&cp, " "); /* size */ if (cp == NULL || *strsize == '\0' || (dhg->size = (int)strtonum(strsize, 0, 64*1024, &errstr)) == 0 || - errstr) + errstr) { + error("moduli:%d: invalid prime length", linenum); goto fail; + } /* The whole group is one bit larger */ dhg->size++; gen = strsep(&cp, " "); /* gen */ if (cp == NULL || *gen == '\0') - goto fail; + goto truncated; prime = strsep(&cp, " "); /* prime */ - if (cp != NULL || *prime == '\0') + if (cp != NULL || *prime == '\0') { + truncated: + error("moduli:%d: truncated", linenum); goto fail; + } if ((dhg->g = BN_new()) == NULL) fatal("parse_prime: BN_new failed"); if ((dhg->p = BN_new()) == NULL) fatal("parse_prime: BN_new failed"); - if (BN_hex2bn(&dhg->g, gen) == 0) - goto failclean; - - if (BN_hex2bn(&dhg->p, prime) == 0) - goto failclean; - - if (BN_num_bits(dhg->p) != dhg->size) - goto failclean; - - if (BN_is_zero(dhg->g) || BN_is_one(dhg->g)) - goto failclean; + if (BN_hex2bn(&dhg->g, gen) == 0) { + error("moduli:%d: could not parse generator value", linenum); + goto fail; + } + if (BN_hex2bn(&dhg->p, prime) == 0) { + error("moduli:%d: could not parse prime value", linenum); + goto fail; + } + if (BN_num_bits(dhg->p) != dhg->size) { + error("moduli:%d: prime has wrong size: actual %d listed %d", + linenum, BN_num_bits(dhg->p), dhg->size - 1); + goto fail; + } + if (BN_cmp(dhg->g, BN_value_one()) <= 0) { + error("moduli:%d: generator is invalid", linenum); + goto fail; + } - return (1); + return 1; - failclean: - BN_clear_free(dhg->g); - BN_clear_free(dhg->p); fail: + if (dhg->g != NULL) + BN_clear_free(dhg->g); + if (dhg->p != NULL) + BN_clear_free(dhg->p); + dhg->g = dhg->p = NULL; error("Bad prime description in line %d", linenum); - return (0); + return 0; } DH * @@ -234,33 +254,19 @@ dh_pub_is_valid(DH *dh, BIGNUM *dh_pub) void dh_gen_key(DH *dh, int need) { - int i, bits_set, tries = 0; + int pbits; - if (need < 0) - fatal("dh_gen_key: need < 0"); + if (need <= 0) + fatal("%s: need <= 0", __func__); if (dh->p == NULL) - fatal("dh_gen_key: dh->p == NULL"); - if (need > INT_MAX / 2 || 2 * need >= BN_num_bits(dh->p)) - fatal("dh_gen_key: group too small: %d (2*need %d)", - BN_num_bits(dh->p), 2*need); - do { - if (dh->priv_key != NULL) - BN_clear_free(dh->priv_key); - if ((dh->priv_key = BN_new()) == NULL) - fatal("dh_gen_key: BN_new failed"); - /* generate a 2*need bits random private exponent */ - if (!BN_rand(dh->priv_key, 2*need, 0, 0)) - fatal("dh_gen_key: BN_rand failed"); - if (DH_generate_key(dh) == 0) - fatal("DH_generate_key"); - for (i = 0, bits_set = 0; i <= BN_num_bits(dh->priv_key); i++) - if (BN_is_bit_set(dh->priv_key, i)) - bits_set++; - debug2("dh_gen_key: priv key bits set: %d/%d", - bits_set, BN_num_bits(dh->priv_key)); - if (tries++ > 10) - fatal("dh_gen_key: too many bad keys: giving up"); - } while (!dh_pub_is_valid(dh, dh->pub_key)); + fatal("%s: dh->p == NULL", __func__); + if ((pbits = BN_num_bits(dh->p)) <= 0) + fatal("%s: bits(p) <= 0", __func__); + dh->length = MIN(need * 2, pbits - 1); + if (DH_generate_key(dh) == 0) + fatal("%s: key generation failed", __func__); + if (!dh_pub_is_valid(dh, dh->pub_key)) + fatal("%s: generated invalid key", __func__); } DH * @@ -332,17 +338,20 @@ dh_new_group14(void) /* * Estimates the group order for a Diffie-Hellman group that has an - * attack complexity approximately the same as O(2**bits). Estimate - * with: O(exp(1.9223 * (ln q)^(1/3) (ln ln q)^(2/3))) + * attack complexity approximately the same as O(2**bits). + * Values from NIST Special Publication 800-57: Recommendation for Key + * Management Part 1 (rev 3) limited by the recommended maximum value + * from RFC4419 section 3. */ int dh_estimate(int bits) { - + if (bits <= 112) + return 2048; if (bits <= 128) - return (1024); /* O(2**86) */ + return 3072; if (bits <= 192) - return (2048); /* O(2**116) */ - return (4096); /* O(2**156) */ + return 7680; + return 8192; } @@ -1,4 +1,4 @@ -/* $OpenBSD: dh.h,v 1.10 2008/06/26 09:19:40 djm Exp $ */ +/* $OpenBSD: dh.h,v 1.11 2013/10/08 11:42:13 dtucker Exp $ */ /* * Copyright (c) 2000 Niels Provos. All rights reserved. @@ -43,6 +43,7 @@ int dh_pub_is_valid(DH *, BIGNUM *); int dh_estimate(int); +/* Min and max values from RFC4419. */ #define DH_GRP_MIN 1024 #define DH_GRP_MAX 8192 diff --git a/digest.c b/digest.c new file mode 100644 index 00000000..a221819e --- /dev/null +++ b/digest.c @@ -0,0 +1,149 @@ +/* $OpenBSD: digest.c,v 1.3 2014/01/20 00:08:48 djm Exp $ */ +/* + * Copyright (c) 2013 Damien Miller <djm@mindrot.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "includes.h" + +#include <sys/types.h> +#include <limits.h> +#include <stdlib.h> +#include <string.h> + +#include <openssl/evp.h> + +#include "openbsd-compat/openssl-compat.h" + +#include "buffer.h" +#include "digest.h" + +struct ssh_digest_ctx { + int alg; + EVP_MD_CTX mdctx; +}; + +struct ssh_digest { + int id; + const char *name; + size_t digest_len; + const EVP_MD *(*mdfunc)(void); +}; + +/* NB. Indexed directly by algorithm number */ +const struct ssh_digest digests[] = { + { SSH_DIGEST_MD5, "MD5", 16, EVP_md5 }, + { SSH_DIGEST_RIPEMD160, "RIPEMD160", 20, EVP_ripemd160 }, + { SSH_DIGEST_SHA1, "SHA1", 20, EVP_sha1 }, +#ifdef HAVE_EVP_SHA256 /* XXX replace with local if missing */ + { SSH_DIGEST_SHA256, "SHA256", 32, EVP_sha256 }, + { SSH_DIGEST_SHA384, "SHA384", 48, EVP_sha384 }, + { SSH_DIGEST_SHA512, "SHA512", 64, EVP_sha512 }, +#endif + { -1, NULL, 0, NULL }, +}; + +static const struct ssh_digest * +ssh_digest_by_alg(int alg) +{ + if (alg < 0 || alg >= SSH_DIGEST_MAX) + return NULL; + if (digests[alg].id != alg) /* sanity */ + return NULL; + return &(digests[alg]); +} + +size_t +ssh_digest_bytes(int alg) +{ + const struct ssh_digest *digest = ssh_digest_by_alg(alg); + + return digest == NULL ? 0 : digest->digest_len; +} + +struct ssh_digest_ctx * +ssh_digest_start(int alg) +{ + const struct ssh_digest *digest = ssh_digest_by_alg(alg); + struct ssh_digest_ctx *ret; + + if (digest == NULL || ((ret = calloc(1, sizeof(*ret))) == NULL)) + return NULL; + ret->alg = alg; + EVP_MD_CTX_init(&ret->mdctx); + if (EVP_DigestInit_ex(&ret->mdctx, digest->mdfunc(), NULL) != 1) { + free(ret); + return NULL; + } + return ret; +} + +int +ssh_digest_update(struct ssh_digest_ctx *ctx, const void *m, size_t mlen) +{ + if (EVP_DigestUpdate(&ctx->mdctx, m, mlen) != 1) + return -1; + return 0; +} + +int +ssh_digest_update_buffer(struct ssh_digest_ctx *ctx, const Buffer *b) +{ + return ssh_digest_update(ctx, buffer_ptr(b), buffer_len(b)); +} + +int +ssh_digest_final(struct ssh_digest_ctx *ctx, u_char *d, size_t dlen) +{ + const struct ssh_digest *digest = ssh_digest_by_alg(ctx->alg); + u_int l = dlen; + + if (dlen > UINT_MAX) + return -1; + if (dlen < digest->digest_len) /* No truncation allowed */ + return -1; + if (EVP_DigestFinal_ex(&ctx->mdctx, d, &l) != 1) + return -1; + if (l != digest->digest_len) /* sanity */ + return -1; + return 0; +} + +void +ssh_digest_free(struct ssh_digest_ctx *ctx) +{ + EVP_MD_CTX_cleanup(&ctx->mdctx); + memset(ctx, 0, sizeof(*ctx)); + free(ctx); +} + +int +ssh_digest_memory(int alg, const void *m, size_t mlen, u_char *d, size_t dlen) +{ + struct ssh_digest_ctx *ctx = ssh_digest_start(alg); + + if (ctx == NULL) + return -1; + if (ssh_digest_update(ctx, m, mlen) != 0 || + ssh_digest_final(ctx, d, dlen) != 0) + return -1; + ssh_digest_free(ctx); + return 0; +} + +int +ssh_digest_buffer(int alg, const Buffer *b, u_char *d, size_t dlen) +{ + return ssh_digest_memory(alg, buffer_ptr(b), buffer_len(b), d, dlen); +} diff --git a/digest.h b/digest.h new file mode 100644 index 00000000..faefda3f --- /dev/null +++ b/digest.h @@ -0,0 +1,55 @@ +/* $OpenBSD: digest.h,v 1.1 2014/01/09 23:20:00 djm Exp $ */ +/* + * Copyright (c) 2013 Damien Miller <djm@mindrot.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _DIGEST_H +#define _DIGEST_H + +/* Maximum digest output length */ +#define SSH_DIGEST_MAX_LENGTH 64 + +/* Digest algorithms */ +#define SSH_DIGEST_MD5 0 +#define SSH_DIGEST_RIPEMD160 1 +#define SSH_DIGEST_SHA1 2 +#define SSH_DIGEST_SHA256 3 +#define SSH_DIGEST_SHA384 4 +#define SSH_DIGEST_SHA512 5 +#define SSH_DIGEST_MAX 6 + +/* Returns the algorithm's digest length in bytes or 0 for invalid algorithm */ +size_t ssh_digest_bytes(int alg); + +/* One-shot API */ +int ssh_digest_memory(int alg, const void *m, size_t mlen, + u_char *d, size_t dlen) + __attribute__((__bounded__(__buffer__, 2, 3))) + __attribute__((__bounded__(__buffer__, 4, 5))); +int ssh_digest_buffer(int alg, const Buffer *b, u_char *d, size_t dlen) + __attribute__((__bounded__(__buffer__, 3, 4))); + +/* Update API */ +struct ssh_digest_ctx; +struct ssh_digest_ctx *ssh_digest_start(int alg); +int ssh_digest_update(struct ssh_digest_ctx *ctx, const void *m, size_t mlen) + __attribute__((__bounded__(__buffer__, 2, 3))); +int ssh_digest_update_buffer(struct ssh_digest_ctx *ctx, const Buffer *b); +int ssh_digest_final(struct ssh_digest_ctx *ctx, u_char *d, size_t dlen) + __attribute__((__bounded__(__buffer__, 2, 3))); +void ssh_digest_free(struct ssh_digest_ctx *ctx); + +#endif /* _DIGEST_H */ + @@ -1,4 +1,4 @@ -/* $OpenBSD: dns.c,v 1.27 2010/08/31 11:54:45 djm Exp $ */ +/* $OpenBSD: dns.c,v 1.29 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2003 Wesley Griffin. All rights reserved. @@ -78,27 +78,46 @@ dns_read_key(u_int8_t *algorithm, u_int8_t *digest_type, u_char **digest, u_int *digest_len, Key *key) { int success = 0; + enum fp_type fp_type = 0; switch (key->type) { case KEY_RSA: *algorithm = SSHFP_KEY_RSA; + if (!*digest_type) + *digest_type = SSHFP_HASH_SHA1; break; case KEY_DSA: *algorithm = SSHFP_KEY_DSA; + if (!*digest_type) + *digest_type = SSHFP_HASH_SHA1; + break; + case KEY_ECDSA: + *algorithm = SSHFP_KEY_ECDSA; + if (!*digest_type) + *digest_type = SSHFP_HASH_SHA256; break; - /* XXX KEY_ECDSA */ default: *algorithm = SSHFP_KEY_RESERVED; /* 0 */ + *digest_type = SSHFP_HASH_RESERVED; /* 0 */ + } + + switch (*digest_type) { + case SSHFP_HASH_SHA1: + fp_type = SSH_FP_SHA1; + break; + case SSHFP_HASH_SHA256: + fp_type = SSH_FP_SHA256; + break; + default: + *digest_type = SSHFP_HASH_RESERVED; /* 0 */ } - if (*algorithm) { - *digest_type = SSHFP_HASH_SHA1; - *digest = key_fingerprint_raw(key, SSH_FP_SHA1, digest_len); + if (*algorithm && *digest_type) { + *digest = key_fingerprint_raw(key, fp_type, digest_len); if (*digest == NULL) fatal("dns_read_key: null from key_fingerprint_raw()"); success = 1; } else { - *digest_type = SSHFP_HASH_RESERVED; *digest = NULL; *digest_len = 0; success = 0; @@ -180,7 +199,7 @@ verify_host_key_dns(const char *hostname, struct sockaddr *address, struct rrsetinfo *fingerprints = NULL; u_int8_t hostkey_algorithm; - u_int8_t hostkey_digest_type; + u_int8_t hostkey_digest_type = SSHFP_HASH_RESERVED; u_char *hostkey_digest; u_int hostkey_digest_len; @@ -216,7 +235,7 @@ verify_host_key_dns(const char *hostname, struct sockaddr *address, fingerprints->rri_nrdatas); } - /* Initialize host key parameters */ + /* Initialize default host key parameters */ if (!dns_read_key(&hostkey_algorithm, &hostkey_digest_type, &hostkey_digest, &hostkey_digest_len, hostkey)) { error("Error calculating host key fingerprint."); @@ -240,21 +259,32 @@ verify_host_key_dns(const char *hostname, struct sockaddr *address, continue; } + if (hostkey_digest_type != dnskey_digest_type) { + hostkey_digest_type = dnskey_digest_type; + free(hostkey_digest); + + /* Initialize host key parameters */ + if (!dns_read_key(&hostkey_algorithm, + &hostkey_digest_type, &hostkey_digest, + &hostkey_digest_len, hostkey)) { + error("Error calculating key fingerprint."); + freerrset(fingerprints); + return -1; + } + } + /* Check if the current key is the same as the given key */ if (hostkey_algorithm == dnskey_algorithm && hostkey_digest_type == dnskey_digest_type) { - if (hostkey_digest_len == dnskey_digest_len && - memcmp(hostkey_digest, dnskey_digest, - hostkey_digest_len) == 0) { - + timingsafe_bcmp(hostkey_digest, dnskey_digest, + hostkey_digest_len) == 0) *flags |= DNS_VERIFY_MATCH; - } } - xfree(dnskey_digest); + free(dnskey_digest); } - xfree(hostkey_digest); /* from key_fingerprint_raw() */ + free(hostkey_digest); /* from key_fingerprint_raw() */ freerrset(fingerprints); if (*flags & DNS_VERIFY_FOUND) @@ -275,31 +305,36 @@ int export_dns_rr(const char *hostname, Key *key, FILE *f, int generic) { u_int8_t rdata_pubkey_algorithm = 0; - u_int8_t rdata_digest_type = SSHFP_HASH_SHA1; + u_int8_t rdata_digest_type = SSHFP_HASH_RESERVED; + u_int8_t dtype; u_char *rdata_digest; - u_int rdata_digest_len; - - u_int i; + u_int i, rdata_digest_len; int success = 0; - if (dns_read_key(&rdata_pubkey_algorithm, &rdata_digest_type, - &rdata_digest, &rdata_digest_len, key)) { - - if (generic) - fprintf(f, "%s IN TYPE%d \\# %d %02x %02x ", hostname, - DNS_RDATATYPE_SSHFP, 2 + rdata_digest_len, - rdata_pubkey_algorithm, rdata_digest_type); - else - fprintf(f, "%s IN SSHFP %d %d ", hostname, - rdata_pubkey_algorithm, rdata_digest_type); + for (dtype = SSHFP_HASH_SHA1; dtype < SSHFP_HASH_MAX; dtype++) { + rdata_digest_type = dtype; + if (dns_read_key(&rdata_pubkey_algorithm, &rdata_digest_type, + &rdata_digest, &rdata_digest_len, key)) { + if (generic) { + fprintf(f, "%s IN TYPE%d \\# %d %02x %02x ", + hostname, DNS_RDATATYPE_SSHFP, + 2 + rdata_digest_len, + rdata_pubkey_algorithm, rdata_digest_type); + } else { + fprintf(f, "%s IN SSHFP %d %d ", hostname, + rdata_pubkey_algorithm, rdata_digest_type); + } + for (i = 0; i < rdata_digest_len; i++) + fprintf(f, "%02x", rdata_digest[i]); + fprintf(f, "\n"); + free(rdata_digest); /* from key_fingerprint_raw() */ + success = 1; + } + } - for (i = 0; i < rdata_digest_len; i++) - fprintf(f, "%02x", rdata_digest[i]); - fprintf(f, "\n"); - xfree(rdata_digest); /* from key_fingerprint_raw() */ - success = 1; - } else { - error("export_dns_rr: unsupported algorithm"); + /* No SSHFP record was generated at all */ + if (success == 0) { + error("%s: unsupported algorithm and/or digest_type", __func__); } return success; @@ -1,4 +1,4 @@ -/* $OpenBSD: dns.h,v 1.11 2010/02/26 20:29:54 djm Exp $ */ +/* $OpenBSD: dns.h,v 1.12 2012/05/23 03:28:28 djm Exp $ */ /* * Copyright (c) 2003 Wesley Griffin. All rights reserved. @@ -29,14 +29,17 @@ #define DNS_H enum sshfp_types { - SSHFP_KEY_RESERVED, - SSHFP_KEY_RSA, - SSHFP_KEY_DSA + SSHFP_KEY_RESERVED = 0, + SSHFP_KEY_RSA = 1, + SSHFP_KEY_DSA = 2, + SSHFP_KEY_ECDSA = 3 }; enum sshfp_hashes { - SSHFP_HASH_RESERVED, - SSHFP_HASH_SHA1 + SSHFP_HASH_RESERVED = 0, + SSHFP_HASH_SHA1 = 1, + SSHFP_HASH_SHA256 = 2, + SSHFP_HASH_MAX = 3 }; #define DNS_RDATACLASS_IN 1 diff --git a/ed25519.c b/ed25519.c new file mode 100644 index 00000000..767ec24d --- /dev/null +++ b/ed25519.c @@ -0,0 +1,144 @@ +/* $OpenBSD: ed25519.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* + * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, + * Peter Schwabe, Bo-Yin Yang. + * Copied from supercop-20130419/crypto_sign/ed25519/ref/ed25519.c + */ + +#include "includes.h" +#include "crypto_api.h" + +#include "ge25519.h" + +static void get_hram(unsigned char *hram, const unsigned char *sm, const unsigned char *pk, unsigned char *playground, unsigned long long smlen) +{ + unsigned long long i; + + for (i = 0;i < 32;++i) playground[i] = sm[i]; + for (i = 32;i < 64;++i) playground[i] = pk[i-32]; + for (i = 64;i < smlen;++i) playground[i] = sm[i]; + + crypto_hash_sha512(hram,playground,smlen); +} + + +int crypto_sign_ed25519_keypair( + unsigned char *pk, + unsigned char *sk + ) +{ + sc25519 scsk; + ge25519 gepk; + unsigned char extsk[64]; + int i; + + randombytes(sk, 32); + crypto_hash_sha512(extsk, sk, 32); + extsk[0] &= 248; + extsk[31] &= 127; + extsk[31] |= 64; + + sc25519_from32bytes(&scsk,extsk); + + ge25519_scalarmult_base(&gepk, &scsk); + ge25519_pack(pk, &gepk); + for(i=0;i<32;i++) + sk[32 + i] = pk[i]; + return 0; +} + +int crypto_sign_ed25519( + unsigned char *sm,unsigned long long *smlen, + const unsigned char *m,unsigned long long mlen, + const unsigned char *sk + ) +{ + sc25519 sck, scs, scsk; + ge25519 ger; + unsigned char r[32]; + unsigned char s[32]; + unsigned char extsk[64]; + unsigned long long i; + unsigned char hmg[crypto_hash_sha512_BYTES]; + unsigned char hram[crypto_hash_sha512_BYTES]; + + crypto_hash_sha512(extsk, sk, 32); + extsk[0] &= 248; + extsk[31] &= 127; + extsk[31] |= 64; + + *smlen = mlen+64; + for(i=0;i<mlen;i++) + sm[64 + i] = m[i]; + for(i=0;i<32;i++) + sm[32 + i] = extsk[32+i]; + + crypto_hash_sha512(hmg, sm+32, mlen+32); /* Generate k as h(extsk[32],...,extsk[63],m) */ + + /* Computation of R */ + sc25519_from64bytes(&sck, hmg); + ge25519_scalarmult_base(&ger, &sck); + ge25519_pack(r, &ger); + + /* Computation of s */ + for(i=0;i<32;i++) + sm[i] = r[i]; + + get_hram(hram, sm, sk+32, sm, mlen+64); + + sc25519_from64bytes(&scs, hram); + sc25519_from32bytes(&scsk, extsk); + sc25519_mul(&scs, &scs, &scsk); + + sc25519_add(&scs, &scs, &sck); + + sc25519_to32bytes(s,&scs); /* cat s */ + for(i=0;i<32;i++) + sm[32 + i] = s[i]; + + return 0; +} + +int crypto_sign_ed25519_open( + unsigned char *m,unsigned long long *mlen, + const unsigned char *sm,unsigned long long smlen, + const unsigned char *pk + ) +{ + unsigned int i; + int ret; + unsigned char t2[32]; + ge25519 get1, get2; + sc25519 schram, scs; + unsigned char hram[crypto_hash_sha512_BYTES]; + + *mlen = (unsigned long long) -1; + if (smlen < 64) return -1; + + if (ge25519_unpackneg_vartime(&get1, pk)) return -1; + + get_hram(hram,sm,pk,m,smlen); + + sc25519_from64bytes(&schram, hram); + + sc25519_from32bytes(&scs, sm+32); + + ge25519_double_scalarmult_vartime(&get2, &get1, &schram, &ge25519_base, &scs); + ge25519_pack(t2, &get2); + + ret = crypto_verify_32(sm, t2); + + if (!ret) + { + for(i=0;i<smlen-64;i++) + m[i] = sm[i + 64]; + *mlen = smlen-64; + } + else + { + for(i=0;i<smlen-64;i++) + m[i] = 0; + } + return ret; +} @@ -211,9 +211,14 @@ seed_rng(void) #endif /* * OpenSSL version numbers: MNNFFPPS: major minor fix patch status - * We match major, minor, fix and status (not patch) + * We match major, minor, fix and status (not patch) for <1.0.0. + * After that, we acceptable compatible fix versions (so we + * allow 1.0.1 to work with 1.0.0). Going backwards is only allowed + * within a patch series. */ - if ((SSLeay() ^ OPENSSL_VERSION_NUMBER) & ~0xff0L) + u_long version_mask = SSLeay() >= 0x1000000f ? ~0xffff0L : ~0xff0L; + if (((SSLeay() ^ OPENSSL_VERSION_NUMBER) & version_mask) || + (SSLeay() >> 12) < (OPENSSL_VERSION_NUMBER >> 12)) fatal("OpenSSL version mismatch. Built against %lx, you " "have %lx", (u_long)OPENSSL_VERSION_NUMBER, SSLeay()); diff --git a/fe25519.c b/fe25519.c new file mode 100644 index 00000000..e54fd154 --- /dev/null +++ b/fe25519.c @@ -0,0 +1,337 @@ +/* $OpenBSD: fe25519.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* + * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, + * Peter Schwabe, Bo-Yin Yang. + * Copied from supercop-20130419/crypto_sign/ed25519/ref/fe25519.c + */ + +#include "includes.h" + +#define WINDOWSIZE 1 /* Should be 1,2, or 4 */ +#define WINDOWMASK ((1<<WINDOWSIZE)-1) + +#include "fe25519.h" + +static crypto_uint32 equal(crypto_uint32 a,crypto_uint32 b) /* 16-bit inputs */ +{ + crypto_uint32 x = a ^ b; /* 0: yes; 1..65535: no */ + x -= 1; /* 4294967295: yes; 0..65534: no */ + x >>= 31; /* 1: yes; 0: no */ + return x; +} + +static crypto_uint32 ge(crypto_uint32 a,crypto_uint32 b) /* 16-bit inputs */ +{ + unsigned int x = a; + x -= (unsigned int) b; /* 0..65535: yes; 4294901761..4294967295: no */ + x >>= 31; /* 0: yes; 1: no */ + x ^= 1; /* 1: yes; 0: no */ + return x; +} + +static crypto_uint32 times19(crypto_uint32 a) +{ + return (a << 4) + (a << 1) + a; +} + +static crypto_uint32 times38(crypto_uint32 a) +{ + return (a << 5) + (a << 2) + (a << 1); +} + +static void reduce_add_sub(fe25519 *r) +{ + crypto_uint32 t; + int i,rep; + + for(rep=0;rep<4;rep++) + { + t = r->v[31] >> 7; + r->v[31] &= 127; + t = times19(t); + r->v[0] += t; + for(i=0;i<31;i++) + { + t = r->v[i] >> 8; + r->v[i+1] += t; + r->v[i] &= 255; + } + } +} + +static void reduce_mul(fe25519 *r) +{ + crypto_uint32 t; + int i,rep; + + for(rep=0;rep<2;rep++) + { + t = r->v[31] >> 7; + r->v[31] &= 127; + t = times19(t); + r->v[0] += t; + for(i=0;i<31;i++) + { + t = r->v[i] >> 8; + r->v[i+1] += t; + r->v[i] &= 255; + } + } +} + +/* reduction modulo 2^255-19 */ +void fe25519_freeze(fe25519 *r) +{ + int i; + crypto_uint32 m = equal(r->v[31],127); + for(i=30;i>0;i--) + m &= equal(r->v[i],255); + m &= ge(r->v[0],237); + + m = -m; + + r->v[31] -= m&127; + for(i=30;i>0;i--) + r->v[i] -= m&255; + r->v[0] -= m&237; +} + +void fe25519_unpack(fe25519 *r, const unsigned char x[32]) +{ + int i; + for(i=0;i<32;i++) r->v[i] = x[i]; + r->v[31] &= 127; +} + +/* Assumes input x being reduced below 2^255 */ +void fe25519_pack(unsigned char r[32], const fe25519 *x) +{ + int i; + fe25519 y = *x; + fe25519_freeze(&y); + for(i=0;i<32;i++) + r[i] = y.v[i]; +} + +int fe25519_iszero(const fe25519 *x) +{ + int i; + int r; + fe25519 t = *x; + fe25519_freeze(&t); + r = equal(t.v[0],0); + for(i=1;i<32;i++) + r &= equal(t.v[i],0); + return r; +} + +int fe25519_iseq_vartime(const fe25519 *x, const fe25519 *y) +{ + int i; + fe25519 t1 = *x; + fe25519 t2 = *y; + fe25519_freeze(&t1); + fe25519_freeze(&t2); + for(i=0;i<32;i++) + if(t1.v[i] != t2.v[i]) return 0; + return 1; +} + +void fe25519_cmov(fe25519 *r, const fe25519 *x, unsigned char b) +{ + int i; + crypto_uint32 mask = b; + mask = -mask; + for(i=0;i<32;i++) r->v[i] ^= mask & (x->v[i] ^ r->v[i]); +} + +unsigned char fe25519_getparity(const fe25519 *x) +{ + fe25519 t = *x; + fe25519_freeze(&t); + return t.v[0] & 1; +} + +void fe25519_setone(fe25519 *r) +{ + int i; + r->v[0] = 1; + for(i=1;i<32;i++) r->v[i]=0; +} + +void fe25519_setzero(fe25519 *r) +{ + int i; + for(i=0;i<32;i++) r->v[i]=0; +} + +void fe25519_neg(fe25519 *r, const fe25519 *x) +{ + fe25519 t; + int i; + for(i=0;i<32;i++) t.v[i]=x->v[i]; + fe25519_setzero(r); + fe25519_sub(r, r, &t); +} + +void fe25519_add(fe25519 *r, const fe25519 *x, const fe25519 *y) +{ + int i; + for(i=0;i<32;i++) r->v[i] = x->v[i] + y->v[i]; + reduce_add_sub(r); +} + +void fe25519_sub(fe25519 *r, const fe25519 *x, const fe25519 *y) +{ + int i; + crypto_uint32 t[32]; + t[0] = x->v[0] + 0x1da; + t[31] = x->v[31] + 0xfe; + for(i=1;i<31;i++) t[i] = x->v[i] + 0x1fe; + for(i=0;i<32;i++) r->v[i] = t[i] - y->v[i]; + reduce_add_sub(r); +} + +void fe25519_mul(fe25519 *r, const fe25519 *x, const fe25519 *y) +{ + int i,j; + crypto_uint32 t[63]; + for(i=0;i<63;i++)t[i] = 0; + + for(i=0;i<32;i++) + for(j=0;j<32;j++) + t[i+j] += x->v[i] * y->v[j]; + + for(i=32;i<63;i++) + r->v[i-32] = t[i-32] + times38(t[i]); + r->v[31] = t[31]; /* result now in r[0]...r[31] */ + + reduce_mul(r); +} + +void fe25519_square(fe25519 *r, const fe25519 *x) +{ + fe25519_mul(r, x, x); +} + +void fe25519_invert(fe25519 *r, const fe25519 *x) +{ + fe25519 z2; + fe25519 z9; + fe25519 z11; + fe25519 z2_5_0; + fe25519 z2_10_0; + fe25519 z2_20_0; + fe25519 z2_50_0; + fe25519 z2_100_0; + fe25519 t0; + fe25519 t1; + int i; + + /* 2 */ fe25519_square(&z2,x); + /* 4 */ fe25519_square(&t1,&z2); + /* 8 */ fe25519_square(&t0,&t1); + /* 9 */ fe25519_mul(&z9,&t0,x); + /* 11 */ fe25519_mul(&z11,&z9,&z2); + /* 22 */ fe25519_square(&t0,&z11); + /* 2^5 - 2^0 = 31 */ fe25519_mul(&z2_5_0,&t0,&z9); + + /* 2^6 - 2^1 */ fe25519_square(&t0,&z2_5_0); + /* 2^7 - 2^2 */ fe25519_square(&t1,&t0); + /* 2^8 - 2^3 */ fe25519_square(&t0,&t1); + /* 2^9 - 2^4 */ fe25519_square(&t1,&t0); + /* 2^10 - 2^5 */ fe25519_square(&t0,&t1); + /* 2^10 - 2^0 */ fe25519_mul(&z2_10_0,&t0,&z2_5_0); + + /* 2^11 - 2^1 */ fe25519_square(&t0,&z2_10_0); + /* 2^12 - 2^2 */ fe25519_square(&t1,&t0); + /* 2^20 - 2^10 */ for (i = 2;i < 10;i += 2) { fe25519_square(&t0,&t1); fe25519_square(&t1,&t0); } + /* 2^20 - 2^0 */ fe25519_mul(&z2_20_0,&t1,&z2_10_0); + + /* 2^21 - 2^1 */ fe25519_square(&t0,&z2_20_0); + /* 2^22 - 2^2 */ fe25519_square(&t1,&t0); + /* 2^40 - 2^20 */ for (i = 2;i < 20;i += 2) { fe25519_square(&t0,&t1); fe25519_square(&t1,&t0); } + /* 2^40 - 2^0 */ fe25519_mul(&t0,&t1,&z2_20_0); + + /* 2^41 - 2^1 */ fe25519_square(&t1,&t0); + /* 2^42 - 2^2 */ fe25519_square(&t0,&t1); + /* 2^50 - 2^10 */ for (i = 2;i < 10;i += 2) { fe25519_square(&t1,&t0); fe25519_square(&t0,&t1); } + /* 2^50 - 2^0 */ fe25519_mul(&z2_50_0,&t0,&z2_10_0); + + /* 2^51 - 2^1 */ fe25519_square(&t0,&z2_50_0); + /* 2^52 - 2^2 */ fe25519_square(&t1,&t0); + /* 2^100 - 2^50 */ for (i = 2;i < 50;i += 2) { fe25519_square(&t0,&t1); fe25519_square(&t1,&t0); } + /* 2^100 - 2^0 */ fe25519_mul(&z2_100_0,&t1,&z2_50_0); + + /* 2^101 - 2^1 */ fe25519_square(&t1,&z2_100_0); + /* 2^102 - 2^2 */ fe25519_square(&t0,&t1); + /* 2^200 - 2^100 */ for (i = 2;i < 100;i += 2) { fe25519_square(&t1,&t0); fe25519_square(&t0,&t1); } + /* 2^200 - 2^0 */ fe25519_mul(&t1,&t0,&z2_100_0); + + /* 2^201 - 2^1 */ fe25519_square(&t0,&t1); + /* 2^202 - 2^2 */ fe25519_square(&t1,&t0); + /* 2^250 - 2^50 */ for (i = 2;i < 50;i += 2) { fe25519_square(&t0,&t1); fe25519_square(&t1,&t0); } + /* 2^250 - 2^0 */ fe25519_mul(&t0,&t1,&z2_50_0); + + /* 2^251 - 2^1 */ fe25519_square(&t1,&t0); + /* 2^252 - 2^2 */ fe25519_square(&t0,&t1); + /* 2^253 - 2^3 */ fe25519_square(&t1,&t0); + /* 2^254 - 2^4 */ fe25519_square(&t0,&t1); + /* 2^255 - 2^5 */ fe25519_square(&t1,&t0); + /* 2^255 - 21 */ fe25519_mul(r,&t1,&z11); +} + +void fe25519_pow2523(fe25519 *r, const fe25519 *x) +{ + fe25519 z2; + fe25519 z9; + fe25519 z11; + fe25519 z2_5_0; + fe25519 z2_10_0; + fe25519 z2_20_0; + fe25519 z2_50_0; + fe25519 z2_100_0; + fe25519 t; + int i; + + /* 2 */ fe25519_square(&z2,x); + /* 4 */ fe25519_square(&t,&z2); + /* 8 */ fe25519_square(&t,&t); + /* 9 */ fe25519_mul(&z9,&t,x); + /* 11 */ fe25519_mul(&z11,&z9,&z2); + /* 22 */ fe25519_square(&t,&z11); + /* 2^5 - 2^0 = 31 */ fe25519_mul(&z2_5_0,&t,&z9); + + /* 2^6 - 2^1 */ fe25519_square(&t,&z2_5_0); + /* 2^10 - 2^5 */ for (i = 1;i < 5;i++) { fe25519_square(&t,&t); } + /* 2^10 - 2^0 */ fe25519_mul(&z2_10_0,&t,&z2_5_0); + + /* 2^11 - 2^1 */ fe25519_square(&t,&z2_10_0); + /* 2^20 - 2^10 */ for (i = 1;i < 10;i++) { fe25519_square(&t,&t); } + /* 2^20 - 2^0 */ fe25519_mul(&z2_20_0,&t,&z2_10_0); + + /* 2^21 - 2^1 */ fe25519_square(&t,&z2_20_0); + /* 2^40 - 2^20 */ for (i = 1;i < 20;i++) { fe25519_square(&t,&t); } + /* 2^40 - 2^0 */ fe25519_mul(&t,&t,&z2_20_0); + + /* 2^41 - 2^1 */ fe25519_square(&t,&t); + /* 2^50 - 2^10 */ for (i = 1;i < 10;i++) { fe25519_square(&t,&t); } + /* 2^50 - 2^0 */ fe25519_mul(&z2_50_0,&t,&z2_10_0); + + /* 2^51 - 2^1 */ fe25519_square(&t,&z2_50_0); + /* 2^100 - 2^50 */ for (i = 1;i < 50;i++) { fe25519_square(&t,&t); } + /* 2^100 - 2^0 */ fe25519_mul(&z2_100_0,&t,&z2_50_0); + + /* 2^101 - 2^1 */ fe25519_square(&t,&z2_100_0); + /* 2^200 - 2^100 */ for (i = 1;i < 100;i++) { fe25519_square(&t,&t); } + /* 2^200 - 2^0 */ fe25519_mul(&t,&t,&z2_100_0); + + /* 2^201 - 2^1 */ fe25519_square(&t,&t); + /* 2^250 - 2^50 */ for (i = 1;i < 50;i++) { fe25519_square(&t,&t); } + /* 2^250 - 2^0 */ fe25519_mul(&t,&t,&z2_50_0); + + /* 2^251 - 2^1 */ fe25519_square(&t,&t); + /* 2^252 - 2^2 */ fe25519_square(&t,&t); + /* 2^252 - 3 */ fe25519_mul(r,&t,x); +} diff --git a/fe25519.h b/fe25519.h new file mode 100644 index 00000000..41b3cbb4 --- /dev/null +++ b/fe25519.h @@ -0,0 +1,70 @@ +/* $OpenBSD: fe25519.h,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* + * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, + * Peter Schwabe, Bo-Yin Yang. + * Copied from supercop-20130419/crypto_sign/ed25519/ref/fe25519.h + */ + +#ifndef FE25519_H +#define FE25519_H + +#include "crypto_api.h" + +#define fe25519 crypto_sign_ed25519_ref_fe25519 +#define fe25519_freeze crypto_sign_ed25519_ref_fe25519_freeze +#define fe25519_unpack crypto_sign_ed25519_ref_fe25519_unpack +#define fe25519_pack crypto_sign_ed25519_ref_fe25519_pack +#define fe25519_iszero crypto_sign_ed25519_ref_fe25519_iszero +#define fe25519_iseq_vartime crypto_sign_ed25519_ref_fe25519_iseq_vartime +#define fe25519_cmov crypto_sign_ed25519_ref_fe25519_cmov +#define fe25519_setone crypto_sign_ed25519_ref_fe25519_setone +#define fe25519_setzero crypto_sign_ed25519_ref_fe25519_setzero +#define fe25519_neg crypto_sign_ed25519_ref_fe25519_neg +#define fe25519_getparity crypto_sign_ed25519_ref_fe25519_getparity +#define fe25519_add crypto_sign_ed25519_ref_fe25519_add +#define fe25519_sub crypto_sign_ed25519_ref_fe25519_sub +#define fe25519_mul crypto_sign_ed25519_ref_fe25519_mul +#define fe25519_square crypto_sign_ed25519_ref_fe25519_square +#define fe25519_invert crypto_sign_ed25519_ref_fe25519_invert +#define fe25519_pow2523 crypto_sign_ed25519_ref_fe25519_pow2523 + +typedef struct +{ + crypto_uint32 v[32]; +} +fe25519; + +void fe25519_freeze(fe25519 *r); + +void fe25519_unpack(fe25519 *r, const unsigned char x[32]); + +void fe25519_pack(unsigned char r[32], const fe25519 *x); + +int fe25519_iszero(const fe25519 *x); + +int fe25519_iseq_vartime(const fe25519 *x, const fe25519 *y); + +void fe25519_cmov(fe25519 *r, const fe25519 *x, unsigned char b); + +void fe25519_setone(fe25519 *r); + +void fe25519_setzero(fe25519 *r); + +void fe25519_neg(fe25519 *r, const fe25519 *x); + +unsigned char fe25519_getparity(const fe25519 *x); + +void fe25519_add(fe25519 *r, const fe25519 *x, const fe25519 *y); + +void fe25519_sub(fe25519 *r, const fe25519 *x, const fe25519 *y); + +void fe25519_mul(fe25519 *r, const fe25519 *x, const fe25519 *y); + +void fe25519_square(fe25519 *r, const fe25519 *x); + +void fe25519_invert(fe25519 *r, const fe25519 *x); + +void fe25519_pow2523(fe25519 *r, const fe25519 *x); + +#endif diff --git a/fixalgorithms b/fixalgorithms new file mode 100755 index 00000000..115dce81 --- /dev/null +++ b/fixalgorithms @@ -0,0 +1,26 @@ +#!/bin/sh +# +# fixciphers - remove unsupported ciphers from man pages. +# Usage: fixpaths /path/to/sed cipher1 [cipher2] <infile >outfile +# +# Author: Darren Tucker (dtucker at zip com.au). Placed in the public domain. + +die() { + echo $* + exit -1 +} + +SED=$1 +shift + +for c in $*; do + subs="$subs -e /.Dq.$c.*$/d" + subs="$subs -e s/$c,//g" +done + +# now remove any entirely empty lines +subs="$subs -e /^$/d" + +${SED} $subs + +exit 0 diff --git a/ge25519.c b/ge25519.c new file mode 100644 index 00000000..dfe3849b --- /dev/null +++ b/ge25519.c @@ -0,0 +1,321 @@ +/* $OpenBSD: ge25519.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* + * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, + * Peter Schwabe, Bo-Yin Yang. + * Copied from supercop-20130419/crypto_sign/ed25519/ref/ge25519.c + */ + +#include "includes.h" + +#include "fe25519.h" +#include "sc25519.h" +#include "ge25519.h" + +/* + * Arithmetic on the twisted Edwards curve -x^2 + y^2 = 1 + dx^2y^2 + * with d = -(121665/121666) = 37095705934669439343138083508754565189542113879843219016388785533085940283555 + * Base point: (15112221349535400772501151409588531511454012693041857206046113283949847762202,46316835694926478169428394003475163141307993866256225615783033603165251855960); + */ + +/* d */ +static const fe25519 ge25519_ecd = {{0xA3, 0x78, 0x59, 0x13, 0xCA, 0x4D, 0xEB, 0x75, 0xAB, 0xD8, 0x41, 0x41, 0x4D, 0x0A, 0x70, 0x00, + 0x98, 0xE8, 0x79, 0x77, 0x79, 0x40, 0xC7, 0x8C, 0x73, 0xFE, 0x6F, 0x2B, 0xEE, 0x6C, 0x03, 0x52}}; +/* 2*d */ +static const fe25519 ge25519_ec2d = {{0x59, 0xF1, 0xB2, 0x26, 0x94, 0x9B, 0xD6, 0xEB, 0x56, 0xB1, 0x83, 0x82, 0x9A, 0x14, 0xE0, 0x00, + 0x30, 0xD1, 0xF3, 0xEE, 0xF2, 0x80, 0x8E, 0x19, 0xE7, 0xFC, 0xDF, 0x56, 0xDC, 0xD9, 0x06, 0x24}}; +/* sqrt(-1) */ +static const fe25519 ge25519_sqrtm1 = {{0xB0, 0xA0, 0x0E, 0x4A, 0x27, 0x1B, 0xEE, 0xC4, 0x78, 0xE4, 0x2F, 0xAD, 0x06, 0x18, 0x43, 0x2F, + 0xA7, 0xD7, 0xFB, 0x3D, 0x99, 0x00, 0x4D, 0x2B, 0x0B, 0xDF, 0xC1, 0x4F, 0x80, 0x24, 0x83, 0x2B}}; + +#define ge25519_p3 ge25519 + +typedef struct +{ + fe25519 x; + fe25519 z; + fe25519 y; + fe25519 t; +} ge25519_p1p1; + +typedef struct +{ + fe25519 x; + fe25519 y; + fe25519 z; +} ge25519_p2; + +typedef struct +{ + fe25519 x; + fe25519 y; +} ge25519_aff; + + +/* Packed coordinates of the base point */ +const ge25519 ge25519_base = {{{0x1A, 0xD5, 0x25, 0x8F, 0x60, 0x2D, 0x56, 0xC9, 0xB2, 0xA7, 0x25, 0x95, 0x60, 0xC7, 0x2C, 0x69, + 0x5C, 0xDC, 0xD6, 0xFD, 0x31, 0xE2, 0xA4, 0xC0, 0xFE, 0x53, 0x6E, 0xCD, 0xD3, 0x36, 0x69, 0x21}}, + {{0x58, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, + 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66}}, + {{0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}, + {{0xA3, 0xDD, 0xB7, 0xA5, 0xB3, 0x8A, 0xDE, 0x6D, 0xF5, 0x52, 0x51, 0x77, 0x80, 0x9F, 0xF0, 0x20, + 0x7D, 0xE3, 0xAB, 0x64, 0x8E, 0x4E, 0xEA, 0x66, 0x65, 0x76, 0x8B, 0xD7, 0x0F, 0x5F, 0x87, 0x67}}}; + +/* Multiples of the base point in affine representation */ +static const ge25519_aff ge25519_base_multiples_affine[425] = { +#include "ge25519_base.data" +}; + +static void p1p1_to_p2(ge25519_p2 *r, const ge25519_p1p1 *p) +{ + fe25519_mul(&r->x, &p->x, &p->t); + fe25519_mul(&r->y, &p->y, &p->z); + fe25519_mul(&r->z, &p->z, &p->t); +} + +static void p1p1_to_p3(ge25519_p3 *r, const ge25519_p1p1 *p) +{ + p1p1_to_p2((ge25519_p2 *)r, p); + fe25519_mul(&r->t, &p->x, &p->y); +} + +static void ge25519_mixadd2(ge25519_p3 *r, const ge25519_aff *q) +{ + fe25519 a,b,t1,t2,c,d,e,f,g,h,qt; + fe25519_mul(&qt, &q->x, &q->y); + fe25519_sub(&a, &r->y, &r->x); /* A = (Y1-X1)*(Y2-X2) */ + fe25519_add(&b, &r->y, &r->x); /* B = (Y1+X1)*(Y2+X2) */ + fe25519_sub(&t1, &q->y, &q->x); + fe25519_add(&t2, &q->y, &q->x); + fe25519_mul(&a, &a, &t1); + fe25519_mul(&b, &b, &t2); + fe25519_sub(&e, &b, &a); /* E = B-A */ + fe25519_add(&h, &b, &a); /* H = B+A */ + fe25519_mul(&c, &r->t, &qt); /* C = T1*k*T2 */ + fe25519_mul(&c, &c, &ge25519_ec2d); + fe25519_add(&d, &r->z, &r->z); /* D = Z1*2 */ + fe25519_sub(&f, &d, &c); /* F = D-C */ + fe25519_add(&g, &d, &c); /* G = D+C */ + fe25519_mul(&r->x, &e, &f); + fe25519_mul(&r->y, &h, &g); + fe25519_mul(&r->z, &g, &f); + fe25519_mul(&r->t, &e, &h); +} + +static void add_p1p1(ge25519_p1p1 *r, const ge25519_p3 *p, const ge25519_p3 *q) +{ + fe25519 a, b, c, d, t; + + fe25519_sub(&a, &p->y, &p->x); /* A = (Y1-X1)*(Y2-X2) */ + fe25519_sub(&t, &q->y, &q->x); + fe25519_mul(&a, &a, &t); + fe25519_add(&b, &p->x, &p->y); /* B = (Y1+X1)*(Y2+X2) */ + fe25519_add(&t, &q->x, &q->y); + fe25519_mul(&b, &b, &t); + fe25519_mul(&c, &p->t, &q->t); /* C = T1*k*T2 */ + fe25519_mul(&c, &c, &ge25519_ec2d); + fe25519_mul(&d, &p->z, &q->z); /* D = Z1*2*Z2 */ + fe25519_add(&d, &d, &d); + fe25519_sub(&r->x, &b, &a); /* E = B-A */ + fe25519_sub(&r->t, &d, &c); /* F = D-C */ + fe25519_add(&r->z, &d, &c); /* G = D+C */ + fe25519_add(&r->y, &b, &a); /* H = B+A */ +} + +/* See http://www.hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html#doubling-dbl-2008-hwcd */ +static void dbl_p1p1(ge25519_p1p1 *r, const ge25519_p2 *p) +{ + fe25519 a,b,c,d; + fe25519_square(&a, &p->x); + fe25519_square(&b, &p->y); + fe25519_square(&c, &p->z); + fe25519_add(&c, &c, &c); + fe25519_neg(&d, &a); + + fe25519_add(&r->x, &p->x, &p->y); + fe25519_square(&r->x, &r->x); + fe25519_sub(&r->x, &r->x, &a); + fe25519_sub(&r->x, &r->x, &b); + fe25519_add(&r->z, &d, &b); + fe25519_sub(&r->t, &r->z, &c); + fe25519_sub(&r->y, &d, &b); +} + +/* Constant-time version of: if(b) r = p */ +static void cmov_aff(ge25519_aff *r, const ge25519_aff *p, unsigned char b) +{ + fe25519_cmov(&r->x, &p->x, b); + fe25519_cmov(&r->y, &p->y, b); +} + +static unsigned char equal(signed char b,signed char c) +{ + unsigned char ub = b; + unsigned char uc = c; + unsigned char x = ub ^ uc; /* 0: yes; 1..255: no */ + crypto_uint32 y = x; /* 0: yes; 1..255: no */ + y -= 1; /* 4294967295: yes; 0..254: no */ + y >>= 31; /* 1: yes; 0: no */ + return y; +} + +static unsigned char negative(signed char b) +{ + unsigned long long x = b; /* 18446744073709551361..18446744073709551615: yes; 0..255: no */ + x >>= 63; /* 1: yes; 0: no */ + return x; +} + +static void choose_t(ge25519_aff *t, unsigned long long pos, signed char b) +{ + /* constant time */ + fe25519 v; + *t = ge25519_base_multiples_affine[5*pos+0]; + cmov_aff(t, &ge25519_base_multiples_affine[5*pos+1],equal(b,1) | equal(b,-1)); + cmov_aff(t, &ge25519_base_multiples_affine[5*pos+2],equal(b,2) | equal(b,-2)); + cmov_aff(t, &ge25519_base_multiples_affine[5*pos+3],equal(b,3) | equal(b,-3)); + cmov_aff(t, &ge25519_base_multiples_affine[5*pos+4],equal(b,-4)); + fe25519_neg(&v, &t->x); + fe25519_cmov(&t->x, &v, negative(b)); +} + +static void setneutral(ge25519 *r) +{ + fe25519_setzero(&r->x); + fe25519_setone(&r->y); + fe25519_setone(&r->z); + fe25519_setzero(&r->t); +} + +/* ******************************************************************** + * EXPORTED FUNCTIONS + ******************************************************************** */ + +/* return 0 on success, -1 otherwise */ +int ge25519_unpackneg_vartime(ge25519_p3 *r, const unsigned char p[32]) +{ + unsigned char par; + fe25519 t, chk, num, den, den2, den4, den6; + fe25519_setone(&r->z); + par = p[31] >> 7; + fe25519_unpack(&r->y, p); + fe25519_square(&num, &r->y); /* x = y^2 */ + fe25519_mul(&den, &num, &ge25519_ecd); /* den = dy^2 */ + fe25519_sub(&num, &num, &r->z); /* x = y^2-1 */ + fe25519_add(&den, &r->z, &den); /* den = dy^2+1 */ + + /* Computation of sqrt(num/den) */ + /* 1.: computation of num^((p-5)/8)*den^((7p-35)/8) = (num*den^7)^((p-5)/8) */ + fe25519_square(&den2, &den); + fe25519_square(&den4, &den2); + fe25519_mul(&den6, &den4, &den2); + fe25519_mul(&t, &den6, &num); + fe25519_mul(&t, &t, &den); + + fe25519_pow2523(&t, &t); + /* 2. computation of r->x = t * num * den^3 */ + fe25519_mul(&t, &t, &num); + fe25519_mul(&t, &t, &den); + fe25519_mul(&t, &t, &den); + fe25519_mul(&r->x, &t, &den); + + /* 3. Check whether sqrt computation gave correct result, multiply by sqrt(-1) if not: */ + fe25519_square(&chk, &r->x); + fe25519_mul(&chk, &chk, &den); + if (!fe25519_iseq_vartime(&chk, &num)) + fe25519_mul(&r->x, &r->x, &ge25519_sqrtm1); + + /* 4. Now we have one of the two square roots, except if input was not a square */ + fe25519_square(&chk, &r->x); + fe25519_mul(&chk, &chk, &den); + if (!fe25519_iseq_vartime(&chk, &num)) + return -1; + + /* 5. Choose the desired square root according to parity: */ + if(fe25519_getparity(&r->x) != (1-par)) + fe25519_neg(&r->x, &r->x); + + fe25519_mul(&r->t, &r->x, &r->y); + return 0; +} + +void ge25519_pack(unsigned char r[32], const ge25519_p3 *p) +{ + fe25519 tx, ty, zi; + fe25519_invert(&zi, &p->z); + fe25519_mul(&tx, &p->x, &zi); + fe25519_mul(&ty, &p->y, &zi); + fe25519_pack(r, &ty); + r[31] ^= fe25519_getparity(&tx) << 7; +} + +int ge25519_isneutral_vartime(const ge25519_p3 *p) +{ + int ret = 1; + if(!fe25519_iszero(&p->x)) ret = 0; + if(!fe25519_iseq_vartime(&p->y, &p->z)) ret = 0; + return ret; +} + +/* computes [s1]p1 + [s2]p2 */ +void ge25519_double_scalarmult_vartime(ge25519_p3 *r, const ge25519_p3 *p1, const sc25519 *s1, const ge25519_p3 *p2, const sc25519 *s2) +{ + ge25519_p1p1 tp1p1; + ge25519_p3 pre[16]; + unsigned char b[127]; + int i; + + /* precomputation s2 s1 */ + setneutral(pre); /* 00 00 */ + pre[1] = *p1; /* 00 01 */ + dbl_p1p1(&tp1p1,(ge25519_p2 *)p1); p1p1_to_p3( &pre[2], &tp1p1); /* 00 10 */ + add_p1p1(&tp1p1,&pre[1], &pre[2]); p1p1_to_p3( &pre[3], &tp1p1); /* 00 11 */ + pre[4] = *p2; /* 01 00 */ + add_p1p1(&tp1p1,&pre[1], &pre[4]); p1p1_to_p3( &pre[5], &tp1p1); /* 01 01 */ + add_p1p1(&tp1p1,&pre[2], &pre[4]); p1p1_to_p3( &pre[6], &tp1p1); /* 01 10 */ + add_p1p1(&tp1p1,&pre[3], &pre[4]); p1p1_to_p3( &pre[7], &tp1p1); /* 01 11 */ + dbl_p1p1(&tp1p1,(ge25519_p2 *)p2); p1p1_to_p3( &pre[8], &tp1p1); /* 10 00 */ + add_p1p1(&tp1p1,&pre[1], &pre[8]); p1p1_to_p3( &pre[9], &tp1p1); /* 10 01 */ + dbl_p1p1(&tp1p1,(ge25519_p2 *)&pre[5]); p1p1_to_p3(&pre[10], &tp1p1); /* 10 10 */ + add_p1p1(&tp1p1,&pre[3], &pre[8]); p1p1_to_p3(&pre[11], &tp1p1); /* 10 11 */ + add_p1p1(&tp1p1,&pre[4], &pre[8]); p1p1_to_p3(&pre[12], &tp1p1); /* 11 00 */ + add_p1p1(&tp1p1,&pre[1],&pre[12]); p1p1_to_p3(&pre[13], &tp1p1); /* 11 01 */ + add_p1p1(&tp1p1,&pre[2],&pre[12]); p1p1_to_p3(&pre[14], &tp1p1); /* 11 10 */ + add_p1p1(&tp1p1,&pre[3],&pre[12]); p1p1_to_p3(&pre[15], &tp1p1); /* 11 11 */ + + sc25519_2interleave2(b,s1,s2); + + /* scalar multiplication */ + *r = pre[b[126]]; + for(i=125;i>=0;i--) + { + dbl_p1p1(&tp1p1, (ge25519_p2 *)r); + p1p1_to_p2((ge25519_p2 *) r, &tp1p1); + dbl_p1p1(&tp1p1, (ge25519_p2 *)r); + if(b[i]!=0) + { + p1p1_to_p3(r, &tp1p1); + add_p1p1(&tp1p1, r, &pre[b[i]]); + } + if(i != 0) p1p1_to_p2((ge25519_p2 *)r, &tp1p1); + else p1p1_to_p3(r, &tp1p1); + } +} + +void ge25519_scalarmult_base(ge25519_p3 *r, const sc25519 *s) +{ + signed char b[85]; + int i; + ge25519_aff t; + sc25519_window3(b,s); + + choose_t((ge25519_aff *)r, 0, b[0]); + fe25519_setone(&r->z); + fe25519_mul(&r->t, &r->x, &r->y); + for(i=1;i<85;i++) + { + choose_t(&t, (unsigned long long) i, b[i]); + ge25519_mixadd2(r, &t); + } +} diff --git a/ge25519.h b/ge25519.h new file mode 100644 index 00000000..64f63c6f --- /dev/null +++ b/ge25519.h @@ -0,0 +1,43 @@ +/* $OpenBSD: ge25519.h,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* + * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, + * Peter Schwabe, Bo-Yin Yang. + * Copied from supercop-20130419/crypto_sign/ed25519/ref/ge25519.h + */ + +#ifndef GE25519_H +#define GE25519_H + +#include "fe25519.h" +#include "sc25519.h" + +#define ge25519 crypto_sign_ed25519_ref_ge25519 +#define ge25519_base crypto_sign_ed25519_ref_ge25519_base +#define ge25519_unpackneg_vartime crypto_sign_ed25519_ref_unpackneg_vartime +#define ge25519_pack crypto_sign_ed25519_ref_pack +#define ge25519_isneutral_vartime crypto_sign_ed25519_ref_isneutral_vartime +#define ge25519_double_scalarmult_vartime crypto_sign_ed25519_ref_double_scalarmult_vartime +#define ge25519_scalarmult_base crypto_sign_ed25519_ref_scalarmult_base + +typedef struct +{ + fe25519 x; + fe25519 y; + fe25519 z; + fe25519 t; +} ge25519; + +const ge25519 ge25519_base; + +int ge25519_unpackneg_vartime(ge25519 *r, const unsigned char p[32]); + +void ge25519_pack(unsigned char r[32], const ge25519 *p); + +int ge25519_isneutral_vartime(const ge25519 *p); + +void ge25519_double_scalarmult_vartime(ge25519 *r, const ge25519 *p1, const sc25519 *s1, const ge25519 *p2, const sc25519 *s2); + +void ge25519_scalarmult_base(ge25519 *r, const sc25519 *s); + +#endif diff --git a/ge25519_base.data b/ge25519_base.data new file mode 100644 index 00000000..66fb1b61 --- /dev/null +++ b/ge25519_base.data @@ -0,0 +1,858 @@ +/* $OpenBSD: ge25519_base.data,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* + * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, + * Peter Schwabe, Bo-Yin Yang. + * Copied from supercop-20130419/crypto_sign/ed25519/ref/ge25519_base.data + */ + +{{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}, + {{0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}}, +{{{0x1a, 0xd5, 0x25, 0x8f, 0x60, 0x2d, 0x56, 0xc9, 0xb2, 0xa7, 0x25, 0x95, 0x60, 0xc7, 0x2c, 0x69, 0x5c, 0xdc, 0xd6, 0xfd, 0x31, 0xe2, 0xa4, 0xc0, 0xfe, 0x53, 0x6e, 0xcd, 0xd3, 0x36, 0x69, 0x21}} , + {{0x58, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66}}}, +{{{0x0e, 0xce, 0x43, 0x28, 0x4e, 0xa1, 0xc5, 0x83, 0x5f, 0xa4, 0xd7, 0x15, 0x45, 0x8e, 0x0d, 0x08, 0xac, 0xe7, 0x33, 0x18, 0x7d, 0x3b, 0x04, 0x3d, 0x6c, 0x04, 0x5a, 0x9f, 0x4c, 0x38, 0xab, 0x36}} , + {{0xc9, 0xa3, 0xf8, 0x6a, 0xae, 0x46, 0x5f, 0x0e, 0x56, 0x51, 0x38, 0x64, 0x51, 0x0f, 0x39, 0x97, 0x56, 0x1f, 0xa2, 0xc9, 0xe8, 0x5e, 0xa2, 0x1d, 0xc2, 0x29, 0x23, 0x09, 0xf3, 0xcd, 0x60, 0x22}}}, +{{{0x5c, 0xe2, 0xf8, 0xd3, 0x5f, 0x48, 0x62, 0xac, 0x86, 0x48, 0x62, 0x81, 0x19, 0x98, 0x43, 0x63, 0x3a, 0xc8, 0xda, 0x3e, 0x74, 0xae, 0xf4, 0x1f, 0x49, 0x8f, 0x92, 0x22, 0x4a, 0x9c, 0xae, 0x67}} , + {{0xd4, 0xb4, 0xf5, 0x78, 0x48, 0x68, 0xc3, 0x02, 0x04, 0x03, 0x24, 0x67, 0x17, 0xec, 0x16, 0x9f, 0xf7, 0x9e, 0x26, 0x60, 0x8e, 0xa1, 0x26, 0xa1, 0xab, 0x69, 0xee, 0x77, 0xd1, 0xb1, 0x67, 0x12}}}, +{{{0x70, 0xf8, 0xc9, 0xc4, 0x57, 0xa6, 0x3a, 0x49, 0x47, 0x15, 0xce, 0x93, 0xc1, 0x9e, 0x73, 0x1a, 0xf9, 0x20, 0x35, 0x7a, 0xb8, 0xd4, 0x25, 0x83, 0x46, 0xf1, 0xcf, 0x56, 0xdb, 0xa8, 0x3d, 0x20}} , + {{0x2f, 0x11, 0x32, 0xca, 0x61, 0xab, 0x38, 0xdf, 0xf0, 0x0f, 0x2f, 0xea, 0x32, 0x28, 0xf2, 0x4c, 0x6c, 0x71, 0xd5, 0x80, 0x85, 0xb8, 0x0e, 0x47, 0xe1, 0x95, 0x15, 0xcb, 0x27, 0xe8, 0xd0, 0x47}}}, +{{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}, + {{0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}}, +{{{0xc8, 0x84, 0xa5, 0x08, 0xbc, 0xfd, 0x87, 0x3b, 0x99, 0x8b, 0x69, 0x80, 0x7b, 0xc6, 0x3a, 0xeb, 0x93, 0xcf, 0x4e, 0xf8, 0x5c, 0x2d, 0x86, 0x42, 0xb6, 0x71, 0xd7, 0x97, 0x5f, 0xe1, 0x42, 0x67}} , + {{0xb4, 0xb9, 0x37, 0xfc, 0xa9, 0x5b, 0x2f, 0x1e, 0x93, 0xe4, 0x1e, 0x62, 0xfc, 0x3c, 0x78, 0x81, 0x8f, 0xf3, 0x8a, 0x66, 0x09, 0x6f, 0xad, 0x6e, 0x79, 0x73, 0xe5, 0xc9, 0x00, 0x06, 0xd3, 0x21}}}, +{{{0xf8, 0xf9, 0x28, 0x6c, 0x6d, 0x59, 0xb2, 0x59, 0x74, 0x23, 0xbf, 0xe7, 0x33, 0x8d, 0x57, 0x09, 0x91, 0x9c, 0x24, 0x08, 0x15, 0x2b, 0xe2, 0xb8, 0xee, 0x3a, 0xe5, 0x27, 0x06, 0x86, 0xa4, 0x23}} , + {{0xeb, 0x27, 0x67, 0xc1, 0x37, 0xab, 0x7a, 0xd8, 0x27, 0x9c, 0x07, 0x8e, 0xff, 0x11, 0x6a, 0xb0, 0x78, 0x6e, 0xad, 0x3a, 0x2e, 0x0f, 0x98, 0x9f, 0x72, 0xc3, 0x7f, 0x82, 0xf2, 0x96, 0x96, 0x70}}}, +{{{0x81, 0x6b, 0x88, 0xe8, 0x1e, 0xc7, 0x77, 0x96, 0x0e, 0xa1, 0xa9, 0x52, 0xe0, 0xd8, 0x0e, 0x61, 0x9e, 0x79, 0x2d, 0x95, 0x9c, 0x8d, 0x96, 0xe0, 0x06, 0x40, 0x5d, 0x87, 0x28, 0x5f, 0x98, 0x70}} , + {{0xf1, 0x79, 0x7b, 0xed, 0x4f, 0x44, 0xb2, 0xe7, 0x08, 0x0d, 0xc2, 0x08, 0x12, 0xd2, 0x9f, 0xdf, 0xcd, 0x93, 0x20, 0x8a, 0xcf, 0x33, 0xca, 0x6d, 0x89, 0xb9, 0x77, 0xc8, 0x93, 0x1b, 0x4e, 0x60}}}, +{{{0x26, 0x4f, 0x7e, 0x97, 0xf6, 0x40, 0xdd, 0x4f, 0xfc, 0x52, 0x78, 0xf9, 0x90, 0x31, 0x03, 0xe6, 0x7d, 0x56, 0x39, 0x0b, 0x1d, 0x56, 0x82, 0x85, 0xf9, 0x1a, 0x42, 0x17, 0x69, 0x6c, 0xcf, 0x39}} , + {{0x69, 0xd2, 0x06, 0x3a, 0x4f, 0x39, 0x2d, 0xf9, 0x38, 0x40, 0x8c, 0x4c, 0xe7, 0x05, 0x12, 0xb4, 0x78, 0x8b, 0xf8, 0xc0, 0xec, 0x93, 0xde, 0x7a, 0x6b, 0xce, 0x2c, 0xe1, 0x0e, 0xa9, 0x34, 0x44}}}, +{{{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}, + {{0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}}, +{{{0x0b, 0xa4, 0x3c, 0xb0, 0x0f, 0x7a, 0x51, 0xf1, 0x78, 0xd6, 0xd9, 0x6a, 0xfd, 0x46, 0xe8, 0xb8, 0xa8, 0x79, 0x1d, 0x87, 0xf9, 0x90, 0xf2, 0x9c, 0x13, 0x29, 0xf8, 0x0b, 0x20, 0x64, 0xfa, 0x05}} , + {{0x26, 0x09, 0xda, 0x17, 0xaf, 0x95, 0xd6, 0xfb, 0x6a, 0x19, 0x0d, 0x6e, 0x5e, 0x12, 0xf1, 0x99, 0x4c, 0xaa, 0xa8, 0x6f, 0x79, 0x86, 0xf4, 0x72, 0x28, 0x00, 0x26, 0xf9, 0xea, 0x9e, 0x19, 0x3d}}}, +{{{0x87, 0xdd, 0xcf, 0xf0, 0x5b, 0x49, 0xa2, 0x5d, 0x40, 0x7a, 0x23, 0x26, 0xa4, 0x7a, 0x83, 0x8a, 0xb7, 0x8b, 0xd2, 0x1a, 0xbf, 0xea, 0x02, 0x24, 0x08, 0x5f, 0x7b, 0xa9, 0xb1, 0xbe, 0x9d, 0x37}} , + {{0xfc, 0x86, 0x4b, 0x08, 0xee, 0xe7, 0xa0, 0xfd, 0x21, 0x45, 0x09, 0x34, 0xc1, 0x61, 0x32, 0x23, 0xfc, 0x9b, 0x55, 0x48, 0x53, 0x99, 0xf7, 0x63, 0xd0, 0x99, 0xce, 0x01, 0xe0, 0x9f, 0xeb, 0x28}}}, +{{{0x47, 0xfc, 0xab, 0x5a, 0x17, 0xf0, 0x85, 0x56, 0x3a, 0x30, 0x86, 0x20, 0x28, 0x4b, 0x8e, 0x44, 0x74, 0x3a, 0x6e, 0x02, 0xf1, 0x32, 0x8f, 0x9f, 0x3f, 0x08, 0x35, 0xe9, 0xca, 0x16, 0x5f, 0x6e}} , + {{0x1c, 0x59, 0x1c, 0x65, 0x5d, 0x34, 0xa4, 0x09, 0xcd, 0x13, 0x9c, 0x70, 0x7d, 0xb1, 0x2a, 0xc5, 0x88, 0xaf, 0x0b, 0x60, 0xc7, 0x9f, 0x34, 0x8d, 0xd6, 0xb7, 0x7f, 0xea, 0x78, 0x65, 0x8d, 0x77}}}, +{{{0x56, 0xa5, 0xc2, 0x0c, 0xdd, 0xbc, 0xb8, 0x20, 0x6d, 0x57, 0x61, 0xb5, 0xfb, 0x78, 0xb5, 0xd4, 0x49, 0x54, 0x90, 0x26, 0xc1, 0xcb, 0xe9, 0xe6, 0xbf, 0xec, 0x1d, 0x4e, 0xed, 0x07, 0x7e, 0x5e}} , + {{0xc7, 0xf6, 0x6c, 0x56, 0x31, 0x20, 0x14, 0x0e, 0xa8, 0xd9, 0x27, 0xc1, 0x9a, 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{{0x2c, 0x6c, 0xf7, 0x66, 0xa4, 0x62, 0x6b, 0x39, 0xb3, 0xba, 0x65, 0xd3, 0x1c, 0xf8, 0x11, 0xaa, 0xbe, 0xdc, 0x80, 0x59, 0x87, 0xf5, 0x7b, 0xe5, 0xe3, 0xb3, 0x3e, 0x39, 0xda, 0xbe, 0x88, 0x09}}}, +{{{0x8b, 0xf1, 0xa0, 0xf5, 0xdc, 0x29, 0xb4, 0xe2, 0x07, 0xc6, 0x7a, 0x00, 0xd0, 0x89, 0x17, 0x51, 0xd4, 0xbb, 0xd4, 0x22, 0xea, 0x7e, 0x7d, 0x7c, 0x24, 0xea, 0xf2, 0xe8, 0x22, 0x12, 0x95, 0x06}} , + {{0xda, 0x7c, 0xa4, 0x0c, 0xf4, 0xba, 0x6e, 0xe1, 0x89, 0xb5, 0x59, 0xca, 0xf1, 0xc0, 0x29, 0x36, 0x09, 0x44, 0xe2, 0x7f, 0xd1, 0x63, 0x15, 0x99, 0xea, 0x25, 0xcf, 0x0c, 0x9d, 0xc0, 0x44, 0x6f}}}, +{{{0x1d, 0x86, 0x4e, 0xcf, 0xf7, 0x37, 0x10, 0x25, 0x8f, 0x12, 0xfb, 0x19, 0xfb, 0xe0, 0xed, 0x10, 0xc8, 0xe2, 0xf5, 0x75, 0xb1, 0x33, 0xc0, 0x96, 0x0d, 0xfb, 0x15, 0x6c, 0x0d, 0x07, 0x5f, 0x05}} , + {{0x69, 0x3e, 0x47, 0x97, 0x2c, 0xaf, 0x52, 0x7c, 0x78, 0x83, 0xad, 0x1b, 0x39, 0x82, 0x2f, 0x02, 0x6f, 0x47, 0xdb, 0x2a, 0xb0, 0xe1, 0x91, 0x99, 0x55, 0xb8, 0x99, 0x3a, 0xa0, 0x44, 0x11, 0x51}}} diff --git a/groupaccess.c b/groupaccess.c index 2381aeb1..1eab10b1 100644 --- a/groupaccess.c +++ b/groupaccess.c @@ -1,4 +1,4 @@ -/* $OpenBSD: groupaccess.c,v 1.13 2008/07/04 03:44:59 djm Exp $ */ +/* $OpenBSD: groupaccess.c,v 1.14 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2001 Kevin Steves. All rights reserved. * @@ -31,6 +31,7 @@ #include <grp.h> #include <unistd.h> #include <stdarg.h> +#include <stdlib.h> #include <string.h> #include "xmalloc.h" @@ -68,7 +69,7 @@ ga_init(const char *user, gid_t base) for (i = 0, j = 0; i < ngroups; i++) if ((gr = getgrgid(groups_bygid[i])) != NULL) groups_byname[j++] = xstrdup(gr->gr_name); - xfree(groups_bygid); + free(groups_bygid); return (ngroups = j); } @@ -122,8 +123,8 @@ ga_free(void) if (ngroups > 0) { for (i = 0; i < ngroups; i++) - xfree(groups_byname[i]); + free(groups_byname[i]); ngroups = 0; - xfree(groups_byname); + free(groups_byname); } } @@ -1,4 +1,4 @@ -/* $OpenBSD: gss-genr.c,v 1.20 2009/06/22 05:39:28 dtucker Exp $ */ +/* $OpenBSD: gss-genr.c,v 1.21 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2001-2007 Simon Wilkinson. All rights reserved. @@ -59,8 +59,8 @@ void ssh_gssapi_set_oid_data(Gssctxt *ctx, void *data, size_t len) { if (ctx->oid != GSS_C_NO_OID) { - xfree(ctx->oid->elements); - xfree(ctx->oid); + free(ctx->oid->elements); + free(ctx->oid); } ctx->oid = xmalloc(sizeof(gss_OID_desc)); ctx->oid->length = len; @@ -83,7 +83,7 @@ ssh_gssapi_error(Gssctxt *ctxt) s = ssh_gssapi_last_error(ctxt, NULL, NULL); debug("%s", s); - xfree(s); + free(s); } char * @@ -164,8 +164,8 @@ ssh_gssapi_delete_ctx(Gssctxt **ctx) if ((*ctx)->name != GSS_C_NO_NAME) gss_release_name(&ms, &(*ctx)->name); if ((*ctx)->oid != GSS_C_NO_OID) { - xfree((*ctx)->oid->elements); - xfree((*ctx)->oid); + free((*ctx)->oid->elements); + free((*ctx)->oid); (*ctx)->oid = GSS_C_NO_OID; } if ((*ctx)->creds != GSS_C_NO_CREDENTIAL) @@ -175,7 +175,7 @@ ssh_gssapi_delete_ctx(Gssctxt **ctx) if ((*ctx)->client_creds != GSS_C_NO_CREDENTIAL) gss_release_cred(&ms, &(*ctx)->client_creds); - xfree(*ctx); + free(*ctx); *ctx = NULL; } @@ -222,7 +222,7 @@ ssh_gssapi_import_name(Gssctxt *ctx, const char *host) &gssbuf, GSS_C_NT_HOSTBASED_SERVICE, &ctx->name))) ssh_gssapi_error(ctx); - xfree(gssbuf.value); + free(gssbuf.value); return (ctx->major); } diff --git a/gss-serv-krb5.c b/gss-serv-krb5.c index 5a625acb..759fa104 100644 --- a/gss-serv-krb5.c +++ b/gss-serv-krb5.c @@ -1,4 +1,4 @@ -/* $OpenBSD: gss-serv-krb5.c,v 1.7 2006/08/03 03:34:42 deraadt Exp $ */ +/* $OpenBSD: gss-serv-krb5.c,v 1.8 2013/07/20 01:55:13 djm Exp $ */ /* * Copyright (c) 2001-2003 Simon Wilkinson. All rights reserved. @@ -48,12 +48,11 @@ extern ServerOptions options; #ifdef HEIMDAL # include <krb5.h> -#else -# ifdef HAVE_GSSAPI_KRB5_H -# include <gssapi_krb5.h> -# elif HAVE_GSSAPI_GSSAPI_KRB5_H -# include <gssapi/gssapi_krb5.h> -# endif +#endif +#ifdef HAVE_GSSAPI_KRB5_H +# include <gssapi_krb5.h> +#elif HAVE_GSSAPI_GSSAPI_KRB5_H +# include <gssapi/gssapi_krb5.h> #endif static krb5_context krb_context = NULL; @@ -87,14 +86,16 @@ ssh_gssapi_krb5_userok(ssh_gssapi_client *client, char *name) { krb5_principal princ; int retval; + const char *errmsg; if (ssh_gssapi_krb5_init() == 0) return 0; if ((retval = krb5_parse_name(krb_context, client->exportedname.value, &princ))) { - logit("krb5_parse_name(): %.100s", - krb5_get_err_text(krb_context, retval)); + errmsg = krb5_get_error_message(krb_context, retval); + logit("krb5_parse_name(): %.100s", errmsg); + krb5_free_error_message(krb_context, errmsg); return 0; } if (krb5_kuserok(krb_context, princ, name)) { @@ -120,6 +121,7 @@ ssh_gssapi_krb5_storecreds(ssh_gssapi_client *client) krb5_principal princ; OM_uint32 maj_status, min_status; int len; + const char *errmsg; if (client->creds == NULL) { debug("No credentials stored"); @@ -130,30 +132,40 @@ ssh_gssapi_krb5_storecreds(ssh_gssapi_client *client) return; #ifdef HEIMDAL +# ifdef HAVE_KRB5_CC_NEW_UNIQUE + if ((problem = krb5_cc_new_unique(krb_context, krb5_fcc_ops.prefix, + NULL, &ccache)) != 0) { + errmsg = krb5_get_error_message(krb_context, problem); + logit("krb5_cc_new_unique(): %.100s", errmsg); +# else if ((problem = krb5_cc_gen_new(krb_context, &krb5_fcc_ops, &ccache))) { - logit("krb5_cc_gen_new(): %.100s", - krb5_get_err_text(krb_context, problem)); + logit("krb5_cc_gen_new(): %.100s", + krb5_get_err_text(krb_context, problem)); +# endif + krb5_free_error_message(krb_context, errmsg); return; } #else if ((problem = ssh_krb5_cc_gen(krb_context, &ccache))) { - logit("ssh_krb5_cc_gen(): %.100s", - krb5_get_err_text(krb_context, problem)); + errmsg = krb5_get_error_message(krb_context, problem); + logit("ssh_krb5_cc_gen(): %.100s", errmsg); + krb5_free_error_message(krb_context, errmsg); return; } #endif /* #ifdef HEIMDAL */ if ((problem = krb5_parse_name(krb_context, client->exportedname.value, &princ))) { - logit("krb5_parse_name(): %.100s", - krb5_get_err_text(krb_context, problem)); - krb5_cc_destroy(krb_context, ccache); + errmsg = krb5_get_error_message(krb_context, problem); + logit("krb5_parse_name(): %.100s", errmsg); + krb5_free_error_message(krb_context, errmsg); return; } if ((problem = krb5_cc_initialize(krb_context, ccache, princ))) { - logit("krb5_cc_initialize(): %.100s", - krb5_get_err_text(krb_context, problem)); + errmsg = krb5_get_error_message(krb_context, problem); + logit("krb5_cc_initialize(): %.100s", errmsg); + krb5_free_error_message(krb_context, errmsg); krb5_free_principal(krb_context, princ); krb5_cc_destroy(krb_context, ccache); return; @@ -1,4 +1,4 @@ -/* $OpenBSD: gss-serv.c,v 1.23 2011/08/01 19:18:15 markus Exp $ */ +/* $OpenBSD: gss-serv.c,v 1.24 2013/07/20 01:55:13 djm Exp $ */ /* * Copyright (c) 2001-2003 Simon Wilkinson. All rights reserved. @@ -50,7 +50,7 @@ static ssh_gssapi_client gssapi_client = { GSS_C_EMPTY_BUFFER, GSS_C_EMPTY_BUFFER, - GSS_C_NO_CREDENTIAL, NULL, {NULL, NULL, NULL}}; + GSS_C_NO_CREDENTIAL, NULL, {NULL, NULL, NULL, NULL}}; ssh_gssapi_mech gssapi_null_mech = { NULL, NULL, {0, NULL}, NULL, NULL, NULL, NULL}; @@ -0,0 +1,76 @@ +/* $OpenBSD: hash.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* Copied from nacl-20110221/crypto_hash/sha512/ref/hash.c */ + +/* +20080913 +D. J. Bernstein +Public domain. +*/ + +#include "includes.h" + +#include "crypto_api.h" + +#define blocks crypto_hashblocks_sha512 + +static const unsigned char iv[64] = { + 0x6a,0x09,0xe6,0x67,0xf3,0xbc,0xc9,0x08, + 0xbb,0x67,0xae,0x85,0x84,0xca,0xa7,0x3b, + 0x3c,0x6e,0xf3,0x72,0xfe,0x94,0xf8,0x2b, + 0xa5,0x4f,0xf5,0x3a,0x5f,0x1d,0x36,0xf1, + 0x51,0x0e,0x52,0x7f,0xad,0xe6,0x82,0xd1, + 0x9b,0x05,0x68,0x8c,0x2b,0x3e,0x6c,0x1f, + 0x1f,0x83,0xd9,0xab,0xfb,0x41,0xbd,0x6b, + 0x5b,0xe0,0xcd,0x19,0x13,0x7e,0x21,0x79 +} ; + +typedef unsigned long long uint64; + +int crypto_hash_sha512(unsigned char *out,const unsigned char *in,unsigned long long inlen) +{ + unsigned char h[64]; + unsigned char padded[256]; + unsigned int i; + unsigned long long bytes = inlen; + + for (i = 0;i < 64;++i) h[i] = iv[i]; + + blocks(h,in,inlen); + in += inlen; + inlen &= 127; + in -= inlen; + + for (i = 0;i < inlen;++i) padded[i] = in[i]; + padded[inlen] = 0x80; + + if (inlen < 112) { + for (i = inlen + 1;i < 119;++i) padded[i] = 0; + padded[119] = bytes >> 61; + padded[120] = bytes >> 53; + padded[121] = bytes >> 45; + padded[122] = bytes >> 37; + padded[123] = bytes >> 29; + padded[124] = bytes >> 21; + padded[125] = bytes >> 13; + padded[126] = bytes >> 5; + padded[127] = bytes << 3; + blocks(h,padded,128); + } else { + for (i = inlen + 1;i < 247;++i) padded[i] = 0; + padded[247] = bytes >> 61; + padded[248] = bytes >> 53; + padded[249] = bytes >> 45; + padded[250] = bytes >> 37; + padded[251] = bytes >> 29; + padded[252] = bytes >> 21; + padded[253] = bytes >> 13; + padded[254] = bytes >> 5; + padded[255] = bytes << 3; + blocks(h,padded,256); + } + + for (i = 0;i < 64;++i) out[i] = h[i]; + + return 0; +} @@ -1,4 +1,4 @@ -/* $OpenBSD: hostfile.c,v 1.50 2010/12/04 13:31:37 djm Exp $ */ +/* $OpenBSD: hostfile.c,v 1.53 2014/01/09 23:20:00 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -57,6 +57,7 @@ #include "hostfile.h" #include "log.h" #include "misc.h" +#include "digest.h" struct hostkeys { struct hostkey_entry *entries; @@ -64,7 +65,7 @@ struct hostkeys { }; static int -extract_salt(const char *s, u_int l, char *salt, size_t salt_len) +extract_salt(const char *s, u_int l, u_char *salt, size_t salt_len) { char *p, *b64salt; u_int b64len; @@ -96,7 +97,7 @@ extract_salt(const char *s, u_int l, char *salt, size_t salt_len) b64salt[b64len] = '\0'; ret = __b64_pton(b64salt, salt, salt_len); - xfree(b64salt); + free(b64salt); if (ret == -1) { debug2("extract_salt: salt decode error"); return (-1); @@ -115,7 +116,8 @@ host_hash(const char *host, const char *name_from_hostfile, u_int src_len) { const EVP_MD *md = EVP_sha1(); HMAC_CTX mac_ctx; - char salt[256], result[256], uu_salt[512], uu_result[512]; + u_char salt[256], result[256]; + char uu_salt[512], uu_result[512]; static char encoded[1024]; u_int i, len; @@ -133,7 +135,7 @@ host_hash(const char *host, const char *name_from_hostfile, u_int src_len) } HMAC_Init(&mac_ctx, salt, len, md); - HMAC_Update(&mac_ctx, host, strlen(host)); + HMAC_Update(&mac_ctx, (u_char *)host, strlen(host)); HMAC_Final(&mac_ctx, result, NULL); HMAC_cleanup(&mac_ctx); @@ -153,7 +155,7 @@ host_hash(const char *host, const char *name_from_hostfile, u_int src_len) */ int -hostfile_read_key(char **cpp, u_int *bitsp, Key *ret) +hostfile_read_key(char **cpp, int *bitsp, Key *ret) { char *cp; @@ -170,8 +172,10 @@ hostfile_read_key(char **cpp, u_int *bitsp, Key *ret) /* Return results. */ *cpp = cp; - if (bitsp != NULL) - *bitsp = key_size(ret); + if (bitsp != NULL) { + if ((*bitsp = key_size(ret)) <= 0) + return 0; + } return 1; } @@ -327,16 +331,14 @@ free_hostkeys(struct hostkeys *hostkeys) u_int i; for (i = 0; i < hostkeys->num_entries; i++) { - xfree(hostkeys->entries[i].host); - xfree(hostkeys->entries[i].file); + free(hostkeys->entries[i].host); + free(hostkeys->entries[i].file); key_free(hostkeys->entries[i].key); bzero(hostkeys->entries + i, sizeof(*hostkeys->entries)); } - if (hostkeys->entries != NULL) - xfree(hostkeys->entries); - hostkeys->entries = NULL; - hostkeys->num_entries = 0; - xfree(hostkeys); + free(hostkeys->entries); + bzero(hostkeys, sizeof(*hostkeys)); + free(hostkeys); } static int @@ -1,4 +1,4 @@ -/* $OpenBSD: hostfile.h,v 1.19 2010/11/29 23:45:51 djm Exp $ */ +/* $OpenBSD: hostfile.h,v 1.20 2013/07/12 00:19:58 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -40,7 +40,7 @@ HostStatus check_key_in_hostkeys(struct hostkeys *, Key *, int lookup_key_in_hostkeys_by_type(struct hostkeys *, int, const struct hostkey_entry **); -int hostfile_read_key(char **, u_int *, Key *); +int hostfile_read_key(char **, int *, Key *); int add_host_to_hostfile(const char *, const char *, const Key *, int); #define HASH_MAGIC "|1|" @@ -18,7 +18,9 @@ #include "config.h" +#ifndef _GNU_SOURCE #define _GNU_SOURCE /* activate extra prototypes for glibc */ +#endif #include <sys/types.h> #include <sys/socket.h> /* For CMSG_* */ @@ -137,8 +139,10 @@ # include <tmpdir.h> #endif -#ifdef HAVE_LIBUTIL_H -# include <libutil.h> /* Openpty on FreeBSD at least */ +#if defined(HAVE_BSD_LIBUTIL_H) +# include <bsd/libutil.h> +#elif defined(HAVE_LIBUTIL_H) +# include <libutil.h> #endif #if defined(KRB5) && defined(USE_AFS) @@ -1,4 +1,4 @@ -/* $OpenBSD: jpake.c,v 1.6 2010/09/20 04:54:07 djm Exp $ */ +/* $OpenBSD: jpake.c,v 1.8 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2008 Damien Miller. All rights reserved. * @@ -106,7 +106,7 @@ jpake_free(struct jpake_ctx *pctx) do { \ if ((v) != NULL) { \ bzero((v), (l)); \ - xfree(v); \ + free(v); \ (v) = NULL; \ (l) = 0; \ } \ @@ -133,8 +133,8 @@ jpake_free(struct jpake_ctx *pctx) #undef JPAKE_BN_CLEAR_FREE #undef JPAKE_BUF_CLEAR_FREE - bzero(pctx, sizeof(pctx)); - xfree(pctx); + bzero(pctx, sizeof(*pctx)); + free(pctx); } /* dump entire jpake_ctx. NB. includes private values! */ @@ -445,7 +445,7 @@ jpake_check_confirm(const BIGNUM *k, expected_confirm_hash_len) == 0) success = 1; bzero(expected_confirm_hash, expected_confirm_hash_len); - xfree(expected_confirm_hash); + free(expected_confirm_hash); debug3("%s: success = %d", __func__, success); return success; } @@ -1,4 +1,4 @@ -/* $OpenBSD: kex.c,v 1.86 2010/09/22 05:01:29 djm Exp $ */ +/* $OpenBSD: kex.c,v 1.97 2014/01/25 20:35:37 markus Exp $ */ /* * Copyright (c) 2000, 2001 Markus Friedl. All rights reserved. * @@ -49,6 +49,7 @@ #include "dispatch.h" #include "monitor.h" #include "roaming.h" +#include "digest.h" #if OPENSSL_VERSION_NUMBER >= 0x00907000L # if defined(HAVE_EVP_SHA256) @@ -62,6 +63,66 @@ extern const EVP_MD *evp_ssh_sha256(void); static void kex_kexinit_finish(Kex *); static void kex_choose_conf(Kex *); +struct kexalg { + char *name; + int type; + int ec_nid; + int hash_alg; +}; +static const struct kexalg kexalgs[] = { + { KEX_DH1, KEX_DH_GRP1_SHA1, 0, SSH_DIGEST_SHA1 }, + { KEX_DH14, KEX_DH_GRP14_SHA1, 0, SSH_DIGEST_SHA1 }, + { KEX_DHGEX_SHA1, KEX_DH_GEX_SHA1, 0, SSH_DIGEST_SHA1 }, +#ifdef HAVE_EVP_SHA256 + { KEX_DHGEX_SHA256, KEX_DH_GEX_SHA256, 0, SSH_DIGEST_SHA256 }, +#endif +#ifdef OPENSSL_HAS_ECC + { KEX_ECDH_SHA2_NISTP256, KEX_ECDH_SHA2, + NID_X9_62_prime256v1, SSH_DIGEST_SHA256 }, + { KEX_ECDH_SHA2_NISTP384, KEX_ECDH_SHA2, NID_secp384r1, + SSH_DIGEST_SHA384 }, +# ifdef OPENSSL_HAS_NISTP521 + { KEX_ECDH_SHA2_NISTP521, KEX_ECDH_SHA2, NID_secp521r1, + SSH_DIGEST_SHA512 }, +# endif +#endif + { KEX_DH1, KEX_DH_GRP1_SHA1, 0, SSH_DIGEST_SHA1 }, +#ifdef HAVE_EVP_SHA256 + { KEX_CURVE25519_SHA256, KEX_C25519_SHA256, 0, SSH_DIGEST_SHA256 }, +#endif + { NULL, -1, -1, -1}, +}; + +char * +kex_alg_list(char sep) +{ + char *ret = NULL; + size_t nlen, rlen = 0; + const struct kexalg *k; + + for (k = kexalgs; k->name != NULL; k++) { + if (ret != NULL) + ret[rlen++] = sep; + nlen = strlen(k->name); + ret = xrealloc(ret, 1, rlen + nlen + 2); + memcpy(ret + rlen, k->name, nlen + 1); + rlen += nlen; + } + return ret; +} + +static const struct kexalg * +kex_alg_by_name(const char *name) +{ + const struct kexalg *k; + + for (k = kexalgs; k->name != NULL; k++) { + if (strcmp(k->name, name) == 0) + return k; + } + return NULL; +} + /* Validate KEX method name list */ int kex_names_valid(const char *names) @@ -73,20 +134,14 @@ kex_names_valid(const char *names) s = cp = xstrdup(names); for ((p = strsep(&cp, ",")); p && *p != '\0'; (p = strsep(&cp, ","))) { - if (strcmp(p, KEX_DHGEX_SHA256) != 0 && - strcmp(p, KEX_DHGEX_SHA1) != 0 && - strcmp(p, KEX_DH14) != 0 && - strcmp(p, KEX_DH1) != 0 && - (strncmp(p, KEX_ECDH_SHA2_STEM, - sizeof(KEX_ECDH_SHA2_STEM) - 1) != 0 || - kex_ecdh_name_to_nid(p) == -1)) { + if (kex_alg_by_name(p) == NULL) { error("Unsupported KEX algorithm \"%.100s\"", p); - xfree(s); + free(s); return 0; } } debug3("kex names ok: [%s]", names); - xfree(s); + free(s); return 1; } @@ -146,8 +201,8 @@ kex_prop_free(char **proposal) u_int i; for (i = 0; i < PROPOSAL_MAX; i++) - xfree(proposal[i]); - xfree(proposal); + free(proposal[i]); + free(proposal); } /* ARGSUSED */ @@ -184,7 +239,7 @@ kex_finish(Kex *kex) buffer_clear(&kex->peer); /* buffer_clear(&kex->my); */ kex->flags &= ~KEX_INIT_SENT; - xfree(kex->name); + free(kex->name); kex->name = NULL; } @@ -241,9 +296,19 @@ kex_input_kexinit(int type, u_int32_t seq, void *ctxt) for (i = 0; i < KEX_COOKIE_LEN; i++) packet_get_char(); for (i = 0; i < PROPOSAL_MAX; i++) - xfree(packet_get_string(NULL)); - (void) packet_get_char(); - (void) packet_get_int(); + free(packet_get_string(NULL)); + /* + * XXX RFC4253 sec 7: "each side MAY guess" - currently no supported + * KEX method has the server move first, but a server might be using + * a custom method or one that we otherwise don't support. We should + * be prepared to remember first_kex_follows here so we can eat a + * packet later. + * XXX2 - RFC4253 is kind of ambiguous on what first_kex_follows means + * for cases where the server *doesn't* go first. I guess we should + * ignore it when it is set for these cases, which is what we do now. + */ + (void) packet_get_char(); /* first_kex_follows */ + (void) packet_get_int(); /* reserved */ packet_check_eom(); kex_kexinit_finish(kex); @@ -294,6 +359,7 @@ choose_enc(Enc *enc, char *client, char *server) enc->name = name; enc->enabled = 0; enc->iv = NULL; + enc->iv_len = cipher_ivlen(enc->cipher); enc->key = NULL; enc->key_len = cipher_keylen(enc->cipher); enc->block_size = cipher_blocksize(enc->cipher); @@ -337,29 +403,16 @@ choose_comp(Comp *comp, char *client, char *server) static void choose_kex(Kex *k, char *client, char *server) { + const struct kexalg *kexalg; + k->name = match_list(client, server, NULL); if (k->name == NULL) fatal("Unable to negotiate a key exchange method"); - if (strcmp(k->name, KEX_DH1) == 0) { - k->kex_type = KEX_DH_GRP1_SHA1; - k->evp_md = EVP_sha1(); - } else if (strcmp(k->name, KEX_DH14) == 0) { - k->kex_type = KEX_DH_GRP14_SHA1; - k->evp_md = EVP_sha1(); - } else if (strcmp(k->name, KEX_DHGEX_SHA1) == 0) { - k->kex_type = KEX_DH_GEX_SHA1; - k->evp_md = EVP_sha1(); -#if OPENSSL_VERSION_NUMBER >= 0x00907000L - } else if (strcmp(k->name, KEX_DHGEX_SHA256) == 0) { - k->kex_type = KEX_DH_GEX_SHA256; - k->evp_md = evp_ssh_sha256(); - } else if (strncmp(k->name, KEX_ECDH_SHA2_STEM, - sizeof(KEX_ECDH_SHA2_STEM) - 1) == 0) { - k->kex_type = KEX_ECDH_SHA2; - k->evp_md = kex_ecdh_name_to_evpmd(k->name); -#endif - } else - fatal("bad kex alg %s", k->name); + if ((kexalg = kex_alg_by_name(k->name)) == NULL) + fatal("unsupported kex alg %s", k->name); + k->kex_type = kexalg->type; + k->hash_alg = kexalg->hash_alg; + k->ec_nid = kexalg->ec_nid; } static void @@ -371,7 +424,7 @@ choose_hostkeyalg(Kex *k, char *client, char *server) k->hostkey_type = key_type_from_name(hostkeyalg); if (k->hostkey_type == KEY_UNSPEC) fatal("bad hostkey alg '%s'", hostkeyalg); - xfree(hostkeyalg); + free(hostkeyalg); } static int @@ -405,7 +458,7 @@ kex_choose_conf(Kex *kex) char **my, **peer; char **cprop, **sprop; int nenc, nmac, ncomp; - u_int mode, ctos, need; + u_int mode, ctos, need, dh_need, authlen; int first_kex_follows, type; my = kex_buf2prop(&kex->my, NULL); @@ -425,7 +478,7 @@ kex_choose_conf(Kex *kex) roaming = match_list(KEX_RESUME, peer[PROPOSAL_KEX_ALGS], NULL); if (roaming) { kex->roaming = 1; - xfree(roaming); + free(roaming); } } @@ -438,30 +491,36 @@ kex_choose_conf(Kex *kex) nenc = ctos ? PROPOSAL_ENC_ALGS_CTOS : PROPOSAL_ENC_ALGS_STOC; nmac = ctos ? PROPOSAL_MAC_ALGS_CTOS : PROPOSAL_MAC_ALGS_STOC; ncomp = ctos ? PROPOSAL_COMP_ALGS_CTOS : PROPOSAL_COMP_ALGS_STOC; - choose_enc (&newkeys->enc, cprop[nenc], sprop[nenc]); - choose_mac (&newkeys->mac, cprop[nmac], sprop[nmac]); + choose_enc(&newkeys->enc, cprop[nenc], sprop[nenc]); + /* ignore mac for authenticated encryption */ + authlen = cipher_authlen(newkeys->enc.cipher); + if (authlen == 0) + choose_mac(&newkeys->mac, cprop[nmac], sprop[nmac]); choose_comp(&newkeys->comp, cprop[ncomp], sprop[ncomp]); debug("kex: %s %s %s %s", ctos ? "client->server" : "server->client", newkeys->enc.name, - newkeys->mac.name, + authlen == 0 ? newkeys->mac.name : "<implicit>", newkeys->comp.name); } choose_kex(kex, cprop[PROPOSAL_KEX_ALGS], sprop[PROPOSAL_KEX_ALGS]); choose_hostkeyalg(kex, cprop[PROPOSAL_SERVER_HOST_KEY_ALGS], sprop[PROPOSAL_SERVER_HOST_KEY_ALGS]); - need = 0; + need = dh_need = 0; for (mode = 0; mode < MODE_MAX; mode++) { newkeys = kex->newkeys[mode]; - if (need < newkeys->enc.key_len) - need = newkeys->enc.key_len; - if (need < newkeys->enc.block_size) - need = newkeys->enc.block_size; - if (need < newkeys->mac.key_len) - need = newkeys->mac.key_len; + need = MAX(need, newkeys->enc.key_len); + need = MAX(need, newkeys->enc.block_size); + need = MAX(need, newkeys->enc.iv_len); + need = MAX(need, newkeys->mac.key_len); + dh_need = MAX(dh_need, cipher_seclen(newkeys->enc.cipher)); + dh_need = MAX(dh_need, newkeys->enc.block_size); + dh_need = MAX(dh_need, newkeys->enc.iv_len); + dh_need = MAX(dh_need, newkeys->mac.key_len); } /* XXX need runden? */ kex->we_need = need; + kex->dh_need = dh_need; /* ignore the next message if the proposals do not match */ if (first_kex_follows && !proposals_match(my, peer) && @@ -476,30 +535,34 @@ kex_choose_conf(Kex *kex) static u_char * derive_key(Kex *kex, int id, u_int need, u_char *hash, u_int hashlen, - BIGNUM *shared_secret) + const u_char *shared_secret, u_int slen) { Buffer b; - EVP_MD_CTX md; + struct ssh_digest_ctx *hashctx; char c = id; u_int have; - int mdsz; + size_t mdsz; u_char *digest; - if ((mdsz = EVP_MD_size(kex->evp_md)) <= 0) - fatal("bad kex md size %d", mdsz); + if ((mdsz = ssh_digest_bytes(kex->hash_alg)) == 0) + fatal("bad kex md size %zu", mdsz); digest = xmalloc(roundup(need, mdsz)); buffer_init(&b); - buffer_put_bignum2(&b, shared_secret); + buffer_append(&b, shared_secret, slen); /* K1 = HASH(K || H || "A" || session_id) */ - EVP_DigestInit(&md, kex->evp_md); - if (!(datafellows & SSH_BUG_DERIVEKEY)) - EVP_DigestUpdate(&md, buffer_ptr(&b), buffer_len(&b)); - EVP_DigestUpdate(&md, hash, hashlen); - EVP_DigestUpdate(&md, &c, 1); - EVP_DigestUpdate(&md, kex->session_id, kex->session_id_len); - EVP_DigestFinal(&md, digest, NULL); + if ((hashctx = ssh_digest_start(kex->hash_alg)) == NULL) + fatal("%s: ssh_digest_start failed", __func__); + if (ssh_digest_update_buffer(hashctx, &b) != 0 || + ssh_digest_update(hashctx, hash, hashlen) != 0 || + ssh_digest_update(hashctx, &c, 1) != 0 || + ssh_digest_update(hashctx, kex->session_id, + kex->session_id_len) != 0) + fatal("%s: ssh_digest_update failed", __func__); + if (ssh_digest_final(hashctx, digest, mdsz) != 0) + fatal("%s: ssh_digest_final failed", __func__); + ssh_digest_free(hashctx); /* * expand key: @@ -507,12 +570,15 @@ derive_key(Kex *kex, int id, u_int need, u_char *hash, u_int hashlen, * Key = K1 || K2 || ... || Kn */ for (have = mdsz; need > have; have += mdsz) { - EVP_DigestInit(&md, kex->evp_md); - if (!(datafellows & SSH_BUG_DERIVEKEY)) - EVP_DigestUpdate(&md, buffer_ptr(&b), buffer_len(&b)); - EVP_DigestUpdate(&md, hash, hashlen); - EVP_DigestUpdate(&md, digest, have); - EVP_DigestFinal(&md, digest + have, NULL); + if ((hashctx = ssh_digest_start(kex->hash_alg)) == NULL) + fatal("%s: ssh_digest_start failed", __func__); + if (ssh_digest_update_buffer(hashctx, &b) != 0 || + ssh_digest_update(hashctx, hash, hashlen) != 0 || + ssh_digest_update(hashctx, digest, have) != 0) + fatal("%s: ssh_digest_update failed", __func__); + if (ssh_digest_final(hashctx, digest + have, mdsz) != 0) + fatal("%s: ssh_digest_final failed", __func__); + ssh_digest_free(hashctx); } buffer_free(&b); #ifdef DEBUG_KEX @@ -526,14 +592,15 @@ Newkeys *current_keys[MODE_MAX]; #define NKEYS 6 void -kex_derive_keys(Kex *kex, u_char *hash, u_int hashlen, BIGNUM *shared_secret) +kex_derive_keys(Kex *kex, u_char *hash, u_int hashlen, + const u_char *shared_secret, u_int slen) { u_char *keys[NKEYS]; u_int i, mode, ctos; for (i = 0; i < NKEYS; i++) { keys[i] = derive_key(kex, 'A'+i, kex->we_need, hash, hashlen, - shared_secret); + shared_secret, slen); } debug2("kex_derive_keys"); @@ -548,6 +615,18 @@ kex_derive_keys(Kex *kex, u_char *hash, u_int hashlen, BIGNUM *shared_secret) } } +void +kex_derive_keys_bn(Kex *kex, u_char *hash, u_int hashlen, const BIGNUM *secret) +{ + Buffer shared_secret; + + buffer_init(&shared_secret); + buffer_put_bignum2(&shared_secret, secret); + kex_derive_keys(kex, hash, hashlen, + buffer_ptr(&shared_secret), buffer_len(&shared_secret)); + buffer_free(&shared_secret); +} + Newkeys * kex_get_newkeys(int mode) { @@ -562,33 +641,33 @@ void derive_ssh1_session_id(BIGNUM *host_modulus, BIGNUM *server_modulus, u_int8_t cookie[8], u_int8_t id[16]) { - const EVP_MD *evp_md = EVP_md5(); - EVP_MD_CTX md; - u_int8_t nbuf[2048], obuf[EVP_MAX_MD_SIZE]; + u_int8_t nbuf[2048], obuf[SSH_DIGEST_MAX_LENGTH]; int len; + struct ssh_digest_ctx *hashctx; - EVP_DigestInit(&md, evp_md); + if ((hashctx = ssh_digest_start(SSH_DIGEST_MD5)) == NULL) + fatal("%s: ssh_digest_start", __func__); len = BN_num_bytes(host_modulus); if (len < (512 / 8) || (u_int)len > sizeof(nbuf)) fatal("%s: bad host modulus (len %d)", __func__, len); BN_bn2bin(host_modulus, nbuf); - EVP_DigestUpdate(&md, nbuf, len); + if (ssh_digest_update(hashctx, nbuf, len) != 0) + fatal("%s: ssh_digest_update failed", __func__); len = BN_num_bytes(server_modulus); if (len < (512 / 8) || (u_int)len > sizeof(nbuf)) fatal("%s: bad server modulus (len %d)", __func__, len); BN_bn2bin(server_modulus, nbuf); - EVP_DigestUpdate(&md, nbuf, len); - - EVP_DigestUpdate(&md, cookie, 8); - - EVP_DigestFinal(&md, obuf, NULL); - memcpy(id, obuf, 16); + if (ssh_digest_update(hashctx, nbuf, len) != 0 || + ssh_digest_update(hashctx, cookie, 8) != 0) + fatal("%s: ssh_digest_update failed", __func__); + if (ssh_digest_final(hashctx, obuf, sizeof(obuf)) != 0) + fatal("%s: ssh_digest_final failed", __func__); + memcpy(id, obuf, ssh_digest_bytes(SSH_DIGEST_MD5)); memset(nbuf, 0, sizeof(nbuf)); memset(obuf, 0, sizeof(obuf)); - memset(&md, 0, sizeof(md)); } #if defined(DEBUG_KEX) || defined(DEBUG_KEXDH) || defined(DEBUG_KEXECDH) @@ -1,4 +1,4 @@ -/* $OpenBSD: kex.h,v 1.52 2010/09/22 05:01:29 djm Exp $ */ +/* $OpenBSD: kex.h,v 1.61 2014/01/25 10:12:50 dtucker Exp $ */ /* * Copyright (c) 2000, 2001 Markus Friedl. All rights reserved. @@ -40,8 +40,10 @@ #define KEX_DHGEX_SHA1 "diffie-hellman-group-exchange-sha1" #define KEX_DHGEX_SHA256 "diffie-hellman-group-exchange-sha256" #define KEX_RESUME "resume@appgate.com" -/* The following represents the family of ECDH methods */ -#define KEX_ECDH_SHA2_STEM "ecdh-sha2-" +#define KEX_ECDH_SHA2_NISTP256 "ecdh-sha2-nistp256" +#define KEX_ECDH_SHA2_NISTP384 "ecdh-sha2-nistp384" +#define KEX_ECDH_SHA2_NISTP521 "ecdh-sha2-nistp521" +#define KEX_CURVE25519_SHA256 "curve25519-sha256@libssh.org" #define COMP_NONE 0 #define COMP_ZLIB 1 @@ -73,6 +75,7 @@ enum kex_exchange { KEX_DH_GEX_SHA1, KEX_DH_GEX_SHA256, KEX_ECDH_SHA2, + KEX_C25519_SHA256, KEX_MAX }; @@ -86,9 +89,10 @@ typedef struct Newkeys Newkeys; struct Enc { char *name; - Cipher *cipher; + const Cipher *cipher; int enabled; u_int key_len; + u_int iv_len; u_int block_size; u_char *key; u_char *iv; @@ -100,6 +104,7 @@ struct Mac { u_char *key; u_int key_len; int type; + int etm; /* Encrypt-then-MAC */ const EVP_MD *evp_md; HMAC_CTX evp_ctx; struct umac_ctx *umac_ctx; @@ -119,6 +124,7 @@ struct Kex { u_int session_id_len; Newkeys *newkeys[MODE_MAX]; u_int we_need; + u_int dh_need; int server; char *name; int hostkey_type; @@ -128,24 +134,28 @@ struct Kex { Buffer peer; sig_atomic_t done; int flags; - const EVP_MD *evp_md; + int hash_alg; + int ec_nid; char *client_version_string; char *server_version_string; int (*verify_host_key)(Key *); Key *(*load_host_public_key)(int); Key *(*load_host_private_key)(int); int (*host_key_index)(Key *); + void (*sign)(Key *, Key *, u_char **, u_int *, u_char *, u_int); void (*kex[KEX_MAX])(Kex *); }; int kex_names_valid(const char *); +char *kex_alg_list(char); Kex *kex_setup(char *[PROPOSAL_MAX]); void kex_finish(Kex *); void kex_send_kexinit(Kex *); void kex_input_kexinit(int, u_int32_t, void *); -void kex_derive_keys(Kex *, u_char *, u_int, BIGNUM *); +void kex_derive_keys(Kex *, u_char *, u_int, const u_char *, u_int); +void kex_derive_keys_bn(Kex *, u_char *, u_int, const BIGNUM *); Newkeys *kex_get_newkeys(int); @@ -155,25 +165,35 @@ void kexgex_client(Kex *); void kexgex_server(Kex *); void kexecdh_client(Kex *); void kexecdh_server(Kex *); +void kexc25519_client(Kex *); +void kexc25519_server(Kex *); void kex_dh_hash(char *, char *, char *, int, char *, int, u_char *, int, BIGNUM *, BIGNUM *, BIGNUM *, u_char **, u_int *); void -kexgex_hash(const EVP_MD *, char *, char *, char *, int, char *, +kexgex_hash(int, char *, char *, char *, int, char *, int, u_char *, int, int, int, int, BIGNUM *, BIGNUM *, BIGNUM *, BIGNUM *, BIGNUM *, u_char **, u_int *); #ifdef OPENSSL_HAS_ECC void -kex_ecdh_hash(const EVP_MD *, const EC_GROUP *, char *, char *, char *, int, +kex_ecdh_hash(int, const EC_GROUP *, char *, char *, char *, int, char *, int, u_char *, int, const EC_POINT *, const EC_POINT *, const BIGNUM *, u_char **, u_int *); -int kex_ecdh_name_to_nid(const char *); -const EVP_MD *kex_ecdh_name_to_evpmd(const char *); -#else -# define kex_ecdh_name_to_nid(x) (-1) -# define kex_ecdh_name_to_evpmd(x) (NULL) #endif +void +kex_c25519_hash(int, char *, char *, char *, int, + char *, int, u_char *, int, const u_char *, const u_char *, + const u_char *, u_int, u_char **, u_int *); + +#define CURVE25519_SIZE 32 +void kexc25519_keygen(u_char[CURVE25519_SIZE], u_char[CURVE25519_SIZE]) + __attribute__((__bounded__(__minbytes__, 1, CURVE25519_SIZE))) + __attribute__((__bounded__(__minbytes__, 2, CURVE25519_SIZE))); +void kexc25519_shared_key(const u_char key[CURVE25519_SIZE], + const u_char pub[CURVE25519_SIZE], Buffer *out) + __attribute__((__bounded__(__minbytes__, 1, CURVE25519_SIZE))) + __attribute__((__bounded__(__minbytes__, 2, CURVE25519_SIZE))); void derive_ssh1_session_id(BIGNUM *, BIGNUM *, u_int8_t[8], u_int8_t[16]); diff --git a/kexc25519.c b/kexc25519.c new file mode 100644 index 00000000..48ca4aaa --- /dev/null +++ b/kexc25519.c @@ -0,0 +1,122 @@ +/* $OpenBSD: kexc25519.c,v 1.4 2014/01/12 08:13:13 djm Exp $ */ +/* + * Copyright (c) 2001, 2013 Markus Friedl. All rights reserved. + * Copyright (c) 2010 Damien Miller. All rights reserved. + * Copyright (c) 2013 Aris Adamantiadis. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "includes.h" + +#include <sys/types.h> + +#include <signal.h> +#include <string.h> + +#include <openssl/bn.h> +#include <openssl/evp.h> + +#include "buffer.h" +#include "ssh2.h" +#include "key.h" +#include "cipher.h" +#include "kex.h" +#include "log.h" +#include "digest.h" + +extern int crypto_scalarmult_curve25519(u_char a[CURVE25519_SIZE], + const u_char b[CURVE25519_SIZE], const u_char c[CURVE25519_SIZE]) + __attribute__((__bounded__(__minbytes__, 1, CURVE25519_SIZE))) + __attribute__((__bounded__(__minbytes__, 2, CURVE25519_SIZE))) + __attribute__((__bounded__(__minbytes__, 3, CURVE25519_SIZE))); + +void +kexc25519_keygen(u_char key[CURVE25519_SIZE], u_char pub[CURVE25519_SIZE]) +{ + static const u_char basepoint[CURVE25519_SIZE] = {9}; + + arc4random_buf(key, CURVE25519_SIZE); + crypto_scalarmult_curve25519(pub, key, basepoint); +} + +void +kexc25519_shared_key(const u_char key[CURVE25519_SIZE], + const u_char pub[CURVE25519_SIZE], Buffer *out) +{ + u_char shared_key[CURVE25519_SIZE]; + + crypto_scalarmult_curve25519(shared_key, key, pub); +#ifdef DEBUG_KEXECDH + dump_digest("shared secret", shared_key, CURVE25519_SIZE); +#endif + buffer_clear(out); + buffer_put_bignum2_from_string(out, shared_key, CURVE25519_SIZE); + memset(shared_key, 0, CURVE25519_SIZE); /* XXX explicit_bzero() */ +} + +void +kex_c25519_hash( + int hash_alg, + char *client_version_string, + char *server_version_string, + char *ckexinit, int ckexinitlen, + char *skexinit, int skexinitlen, + u_char *serverhostkeyblob, int sbloblen, + const u_char client_dh_pub[CURVE25519_SIZE], + const u_char server_dh_pub[CURVE25519_SIZE], + const u_char *shared_secret, u_int secretlen, + u_char **hash, u_int *hashlen) +{ + Buffer b; + static u_char digest[SSH_DIGEST_MAX_LENGTH]; + + buffer_init(&b); + buffer_put_cstring(&b, client_version_string); + buffer_put_cstring(&b, server_version_string); + + /* kexinit messages: fake header: len+SSH2_MSG_KEXINIT */ + buffer_put_int(&b, ckexinitlen+1); + buffer_put_char(&b, SSH2_MSG_KEXINIT); + buffer_append(&b, ckexinit, ckexinitlen); + buffer_put_int(&b, skexinitlen+1); + buffer_put_char(&b, SSH2_MSG_KEXINIT); + buffer_append(&b, skexinit, skexinitlen); + + buffer_put_string(&b, serverhostkeyblob, sbloblen); + buffer_put_string(&b, client_dh_pub, CURVE25519_SIZE); + buffer_put_string(&b, server_dh_pub, CURVE25519_SIZE); + buffer_append(&b, shared_secret, secretlen); + +#ifdef DEBUG_KEX + buffer_dump(&b); +#endif + if (ssh_digest_buffer(hash_alg, &b, digest, sizeof(digest)) != 0) + fatal("%s: digest_buffer failed", __func__); + + buffer_free(&b); + +#ifdef DEBUG_KEX + dump_digest("hash", digest, ssh_digest_bytes(hash_alg)); +#endif + *hash = digest; + *hashlen = ssh_digest_bytes(hash_alg); +} diff --git a/kexc25519c.c b/kexc25519c.c new file mode 100644 index 00000000..a80678af --- /dev/null +++ b/kexc25519c.c @@ -0,0 +1,129 @@ +/* $OpenBSD: kexc25519c.c,v 1.4 2014/01/12 08:13:13 djm Exp $ */ +/* + * Copyright (c) 2001 Markus Friedl. All rights reserved. + * Copyright (c) 2010 Damien Miller. All rights reserved. + * Copyright (c) 2013 Aris Adamantiadis. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "includes.h" + +#include <sys/types.h> + +#include <stdio.h> +#include <string.h> +#include <signal.h> + +#include "xmalloc.h" +#include "buffer.h" +#include "key.h" +#include "cipher.h" +#include "kex.h" +#include "log.h" +#include "packet.h" +#include "ssh2.h" + +void +kexc25519_client(Kex *kex) +{ + Key *server_host_key; + u_char client_key[CURVE25519_SIZE]; + u_char client_pubkey[CURVE25519_SIZE]; + u_char *server_pubkey = NULL; + u_char *server_host_key_blob = NULL, *signature = NULL; + u_char *hash; + u_int slen, sbloblen, hashlen; + Buffer shared_secret; + + kexc25519_keygen(client_key, client_pubkey); + + packet_start(SSH2_MSG_KEX_ECDH_INIT); + packet_put_string(client_pubkey, sizeof(client_pubkey)); + packet_send(); + debug("sending SSH2_MSG_KEX_ECDH_INIT"); + +#ifdef DEBUG_KEXECDH + dump_digest("client private key:", client_key, sizeof(client_key)); +#endif + + debug("expecting SSH2_MSG_KEX_ECDH_REPLY"); + packet_read_expect(SSH2_MSG_KEX_ECDH_REPLY); + + /* hostkey */ + server_host_key_blob = packet_get_string(&sbloblen); + server_host_key = key_from_blob(server_host_key_blob, sbloblen); + if (server_host_key == NULL) + fatal("cannot decode server_host_key_blob"); + if (server_host_key->type != kex->hostkey_type) + fatal("type mismatch for decoded server_host_key_blob"); + if (kex->verify_host_key == NULL) + fatal("cannot verify server_host_key"); + if (kex->verify_host_key(server_host_key) == -1) + fatal("server_host_key verification failed"); + + /* Q_S, server public key */ + server_pubkey = packet_get_string(&slen); + if (slen != CURVE25519_SIZE) + fatal("Incorrect size for server Curve25519 pubkey: %d", slen); + +#ifdef DEBUG_KEXECDH + dump_digest("server public key:", server_pubkey, CURVE25519_SIZE); +#endif + + /* signed H */ + signature = packet_get_string(&slen); + packet_check_eom(); + + buffer_init(&shared_secret); + kexc25519_shared_key(client_key, server_pubkey, &shared_secret); + + /* calc and verify H */ + kex_c25519_hash( + kex->hash_alg, + kex->client_version_string, + kex->server_version_string, + buffer_ptr(&kex->my), buffer_len(&kex->my), + buffer_ptr(&kex->peer), buffer_len(&kex->peer), + server_host_key_blob, sbloblen, + client_pubkey, + server_pubkey, + buffer_ptr(&shared_secret), buffer_len(&shared_secret), + &hash, &hashlen + ); + free(server_host_key_blob); + free(server_pubkey); + if (key_verify(server_host_key, signature, slen, hash, hashlen) != 1) + fatal("key_verify failed for server_host_key"); + key_free(server_host_key); + free(signature); + + /* save session id */ + if (kex->session_id == NULL) { + kex->session_id_len = hashlen; + kex->session_id = xmalloc(kex->session_id_len); + memcpy(kex->session_id, hash, kex->session_id_len); + } + kex_derive_keys(kex, hash, hashlen, + buffer_ptr(&shared_secret), buffer_len(&shared_secret)); + buffer_free(&shared_secret); + kex_finish(kex); +} diff --git a/kexc25519s.c b/kexc25519s.c new file mode 100644 index 00000000..2b8e8efa --- /dev/null +++ b/kexc25519s.c @@ -0,0 +1,126 @@ +/* $OpenBSD: kexc25519s.c,v 1.4 2014/01/12 08:13:13 djm Exp $ */ +/* + * Copyright (c) 2001 Markus Friedl. All rights reserved. + * Copyright (c) 2010 Damien Miller. All rights reserved. + * Copyright (c) 2013 Aris Adamantiadis. All rights reserved. + * + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "includes.h" + +#include <sys/types.h> +#include <string.h> +#include <signal.h> + +#include "xmalloc.h" +#include "buffer.h" +#include "key.h" +#include "cipher.h" +#include "kex.h" +#include "log.h" +#include "packet.h" +#include "ssh2.h" + +void +kexc25519_server(Kex *kex) +{ + Key *server_host_private, *server_host_public; + u_char *server_host_key_blob = NULL, *signature = NULL; + u_char server_key[CURVE25519_SIZE]; + u_char *client_pubkey = NULL; + u_char server_pubkey[CURVE25519_SIZE]; + u_char *hash; + u_int slen, sbloblen, hashlen; + Buffer shared_secret; + + /* generate private key */ + kexc25519_keygen(server_key, server_pubkey); +#ifdef DEBUG_KEXECDH + dump_digest("server private key:", server_key, sizeof(server_key)); +#endif + + if (kex->load_host_public_key == NULL || + kex->load_host_private_key == NULL) + fatal("Cannot load hostkey"); + server_host_public = kex->load_host_public_key(kex->hostkey_type); + if (server_host_public == NULL) + fatal("Unsupported hostkey type %d", kex->hostkey_type); + server_host_private = kex->load_host_private_key(kex->hostkey_type); + + debug("expecting SSH2_MSG_KEX_ECDH_INIT"); + packet_read_expect(SSH2_MSG_KEX_ECDH_INIT); + client_pubkey = packet_get_string(&slen); + if (slen != CURVE25519_SIZE) + fatal("Incorrect size for server Curve25519 pubkey: %d", slen); + packet_check_eom(); + +#ifdef DEBUG_KEXECDH + dump_digest("client public key:", client_pubkey, CURVE25519_SIZE); +#endif + + buffer_init(&shared_secret); + kexc25519_shared_key(server_key, client_pubkey, &shared_secret); + + /* calc H */ + key_to_blob(server_host_public, &server_host_key_blob, &sbloblen); + kex_c25519_hash( + kex->hash_alg, + kex->client_version_string, + kex->server_version_string, + buffer_ptr(&kex->peer), buffer_len(&kex->peer), + buffer_ptr(&kex->my), buffer_len(&kex->my), + server_host_key_blob, sbloblen, + client_pubkey, + server_pubkey, + buffer_ptr(&shared_secret), buffer_len(&shared_secret), + &hash, &hashlen + ); + + /* save session id := H */ + if (kex->session_id == NULL) { + kex->session_id_len = hashlen; + kex->session_id = xmalloc(kex->session_id_len); + memcpy(kex->session_id, hash, kex->session_id_len); + } + + /* sign H */ + kex->sign(server_host_private, server_host_public, &signature, &slen, + hash, hashlen); + + /* destroy_sensitive_data(); */ + + /* send server hostkey, ECDH pubkey 'Q_S' and signed H */ + packet_start(SSH2_MSG_KEX_ECDH_REPLY); + packet_put_string(server_host_key_blob, sbloblen); + packet_put_string(server_pubkey, sizeof(server_pubkey)); + packet_put_string(signature, slen); + packet_send(); + + free(signature); + free(server_host_key_blob); + /* have keys, free server key */ + free(client_pubkey); + + kex_derive_keys(kex, hash, hashlen, + buffer_ptr(&shared_secret), buffer_len(&shared_secret)); + buffer_free(&shared_secret); + kex_finish(kex); +} @@ -1,4 +1,4 @@ -/* $OpenBSD: kexdh.c,v 1.23 2006/08/03 03:34:42 deraadt Exp $ */ +/* $OpenBSD: kexdh.c,v 1.24 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * @@ -36,6 +36,8 @@ #include "key.h" #include "cipher.h" #include "kex.h" +#include "digest.h" +#include "log.h" void kex_dh_hash( @@ -50,9 +52,7 @@ kex_dh_hash( u_char **hash, u_int *hashlen) { Buffer b; - static u_char digest[EVP_MAX_MD_SIZE]; - const EVP_MD *evp_md = EVP_sha1(); - EVP_MD_CTX md; + static u_char digest[SSH_DIGEST_MAX_LENGTH]; buffer_init(&b); buffer_put_cstring(&b, client_version_string); @@ -74,15 +74,14 @@ kex_dh_hash( #ifdef DEBUG_KEX buffer_dump(&b); #endif - EVP_DigestInit(&md, evp_md); - EVP_DigestUpdate(&md, buffer_ptr(&b), buffer_len(&b)); - EVP_DigestFinal(&md, digest, NULL); + if (ssh_digest_buffer(SSH_DIGEST_SHA1, &b, digest, sizeof(digest)) != 0) + fatal("%s: ssh_digest_buffer failed", __func__); buffer_free(&b); #ifdef DEBUG_KEX - dump_digest("hash", digest, EVP_MD_size(evp_md)); + dump_digest("hash", digest, ssh_digest_bytes(SSH_DIGEST_SHA1)); #endif *hash = digest; - *hashlen = EVP_MD_size(evp_md); + *hashlen = ssh_digest_bytes(SSH_DIGEST_SHA1); } @@ -1,4 +1,4 @@ -/* $OpenBSD: kexdhc.c,v 1.12 2010/11/10 01:33:07 djm Exp $ */ +/* $OpenBSD: kexdhc.c,v 1.14 2014/01/12 08:13:13 djm Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * @@ -125,7 +125,7 @@ kexdh_client(Kex *kex) if (BN_bin2bn(kbuf, kout, shared_secret) == NULL) fatal("kexdh_client: BN_bin2bn failed"); memset(kbuf, 0, klen); - xfree(kbuf); + free(kbuf); /* calc and verify H */ kex_dh_hash( @@ -139,14 +139,14 @@ kexdh_client(Kex *kex) shared_secret, &hash, &hashlen ); - xfree(server_host_key_blob); + free(server_host_key_blob); BN_clear_free(dh_server_pub); DH_free(dh); if (key_verify(server_host_key, signature, slen, hash, hashlen) != 1) fatal("key_verify failed for server_host_key"); key_free(server_host_key); - xfree(signature); + free(signature); /* save session id */ if (kex->session_id == NULL) { @@ -155,7 +155,7 @@ kexdh_client(Kex *kex) memcpy(kex->session_id, hash, kex->session_id_len); } - kex_derive_keys(kex, hash, hashlen, shared_secret); + kex_derive_keys_bn(kex, hash, hashlen, shared_secret); BN_clear_free(shared_secret); kex_finish(kex); } @@ -1,4 +1,4 @@ -/* $OpenBSD: kexdhs.c,v 1.12 2010/11/10 01:33:07 djm Exp $ */ +/* $OpenBSD: kexdhs.c,v 1.17 2014/01/12 08:13:13 djm Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * @@ -42,10 +42,6 @@ #include "packet.h" #include "dh.h" #include "ssh2.h" -#ifdef GSSAPI -#include "ssh-gss.h" -#endif -#include "monitor_wrap.h" void kexdh_server(Kex *kex) @@ -80,9 +76,6 @@ kexdh_server(Kex *kex) if (server_host_public == NULL) fatal("Unsupported hostkey type %d", kex->hostkey_type); server_host_private = kex->load_host_private_key(kex->hostkey_type); - if (server_host_private == NULL) - fatal("Missing private key for hostkey type %d", - kex->hostkey_type); /* key, cert */ if ((dh_client_pub = BN_new()) == NULL) @@ -118,7 +111,7 @@ kexdh_server(Kex *kex) if (BN_bin2bn(kbuf, kout, shared_secret) == NULL) fatal("kexdh_server: BN_bin2bn failed"); memset(kbuf, 0, klen); - xfree(kbuf); + free(kbuf); key_to_blob(server_host_public, &server_host_key_blob, &sbloblen); @@ -144,9 +137,8 @@ kexdh_server(Kex *kex) } /* sign H */ - if (PRIVSEP(key_sign(server_host_private, &signature, &slen, hash, - hashlen)) < 0) - fatal("kexdh_server: key_sign failed"); + kex->sign(server_host_private, server_host_public, &signature, &slen, + hash, hashlen); /* destroy_sensitive_data(); */ @@ -157,12 +149,12 @@ kexdh_server(Kex *kex) packet_put_string(signature, slen); packet_send(); - xfree(signature); - xfree(server_host_key_blob); + free(signature); + free(server_host_key_blob); /* have keys, free DH */ DH_free(dh); - kex_derive_keys(kex, hash, hashlen, shared_secret); + kex_derive_keys_bn(kex, hash, hashlen, shared_secret); BN_clear_free(shared_secret); kex_finish(kex); } @@ -1,4 +1,4 @@ -/* $OpenBSD: kexecdh.c,v 1.3 2010/09/22 05:01:29 djm Exp $ */ +/* $OpenBSD: kexecdh.c,v 1.5 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * Copyright (c) 2010 Damien Miller. All rights reserved. @@ -44,28 +44,11 @@ #include "cipher.h" #include "kex.h" #include "log.h" - -int -kex_ecdh_name_to_nid(const char *kexname) -{ - if (strlen(kexname) < sizeof(KEX_ECDH_SHA2_STEM) - 1) - fatal("%s: kexname too short \"%s\"", __func__, kexname); - return key_curve_name_to_nid(kexname + sizeof(KEX_ECDH_SHA2_STEM) - 1); -} - -const EVP_MD * -kex_ecdh_name_to_evpmd(const char *kexname) -{ - int nid = kex_ecdh_name_to_nid(kexname); - - if (nid == -1) - fatal("%s: unsupported ECDH curve \"%s\"", __func__, kexname); - return key_ec_nid_to_evpmd(nid); -} +#include "digest.h" void kex_ecdh_hash( - const EVP_MD *evp_md, + int hash_alg, const EC_GROUP *ec_group, char *client_version_string, char *server_version_string, @@ -78,8 +61,7 @@ kex_ecdh_hash( u_char **hash, u_int *hashlen) { Buffer b; - EVP_MD_CTX md; - static u_char digest[EVP_MAX_MD_SIZE]; + static u_char digest[SSH_DIGEST_MAX_LENGTH]; buffer_init(&b); buffer_put_cstring(&b, client_version_string); @@ -101,17 +83,15 @@ kex_ecdh_hash( #ifdef DEBUG_KEX buffer_dump(&b); #endif - EVP_DigestInit(&md, evp_md); - EVP_DigestUpdate(&md, buffer_ptr(&b), buffer_len(&b)); - EVP_DigestFinal(&md, digest, NULL); + if (ssh_digest_buffer(hash_alg, &b, digest, sizeof(digest)) != 0) + fatal("%s: ssh_digest_buffer failed", __func__); buffer_free(&b); #ifdef DEBUG_KEX - dump_digest("hash", digest, EVP_MD_size(evp_md)); + dump_digest("hash", digest, ssh_digest_bytes(hash_alg)); #endif *hash = digest; - *hashlen = EVP_MD_size(evp_md); + *hashlen = ssh_digest_bytes(hash_alg); } - #endif /* OPENSSL_HAS_ECC */ @@ -1,4 +1,4 @@ -/* $OpenBSD: kexecdhc.c,v 1.2 2010/09/22 05:01:29 djm Exp $ */ +/* $OpenBSD: kexecdhc.c,v 1.6 2014/01/12 08:13:13 djm Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * Copyright (c) 2010 Damien Miller. All rights reserved. @@ -57,11 +57,8 @@ kexecdh_client(Kex *kex) u_char *server_host_key_blob = NULL, *signature = NULL; u_char *kbuf, *hash; u_int klen, slen, sbloblen, hashlen; - int curve_nid; - if ((curve_nid = kex_ecdh_name_to_nid(kex->name)) == -1) - fatal("%s: unsupported ECDH curve \"%s\"", __func__, kex->name); - if ((client_key = EC_KEY_new_by_curve_name(curve_nid)) == NULL) + if ((client_key = EC_KEY_new_by_curve_name(kex->ec_nid)) == NULL) fatal("%s: EC_KEY_new_by_curve_name failed", __func__); if (EC_KEY_generate_key(client_key) != 1) fatal("%s: EC_KEY_generate_key failed", __func__); @@ -123,11 +120,11 @@ kexecdh_client(Kex *kex) if (BN_bin2bn(kbuf, klen, shared_secret) == NULL) fatal("%s: BN_bin2bn failed", __func__); memset(kbuf, 0, klen); - xfree(kbuf); + free(kbuf); /* calc and verify H */ kex_ecdh_hash( - kex->evp_md, + kex->hash_alg, group, kex->client_version_string, kex->server_version_string, @@ -139,14 +136,14 @@ kexecdh_client(Kex *kex) shared_secret, &hash, &hashlen ); - xfree(server_host_key_blob); + free(server_host_key_blob); EC_POINT_clear_free(server_public); EC_KEY_free(client_key); if (key_verify(server_host_key, signature, slen, hash, hashlen) != 1) fatal("key_verify failed for server_host_key"); key_free(server_host_key); - xfree(signature); + free(signature); /* save session id */ if (kex->session_id == NULL) { @@ -155,7 +152,7 @@ kexecdh_client(Kex *kex) memcpy(kex->session_id, hash, kex->session_id_len); } - kex_derive_keys(kex, hash, hashlen, shared_secret); + kex_derive_keys_bn(kex, hash, hashlen, shared_secret); BN_clear_free(shared_secret); kex_finish(kex); } @@ -1,4 +1,4 @@ -/* $OpenBSD: kexecdhs.c,v 1.2 2010/09/22 05:01:29 djm Exp $ */ +/* $OpenBSD: kexecdhs.c,v 1.9 2014/01/12 08:13:13 djm Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * Copyright (c) 2010 Damien Miller. All rights reserved. @@ -37,12 +37,7 @@ #include "kex.h" #include "log.h" #include "packet.h" -#include "dh.h" #include "ssh2.h" -#ifdef GSSAPI -#include "ssh-gss.h" -#endif -#include "monitor_wrap.h" #ifdef OPENSSL_HAS_ECC @@ -59,11 +54,8 @@ kexecdh_server(Kex *kex) u_char *server_host_key_blob = NULL, *signature = NULL; u_char *kbuf, *hash; u_int klen, slen, sbloblen, hashlen; - int curve_nid; - if ((curve_nid = kex_ecdh_name_to_nid(kex->name)) == -1) - fatal("%s: unsupported ECDH curve \"%s\"", __func__, kex->name); - if ((server_key = EC_KEY_new_by_curve_name(curve_nid)) == NULL) + if ((server_key = EC_KEY_new_by_curve_name(kex->ec_nid)) == NULL) fatal("%s: EC_KEY_new_by_curve_name failed", __func__); if (EC_KEY_generate_key(server_key) != 1) fatal("%s: EC_KEY_generate_key failed", __func__); @@ -81,9 +73,6 @@ kexecdh_server(Kex *kex) if (server_host_public == NULL) fatal("Unsupported hostkey type %d", kex->hostkey_type); server_host_private = kex->load_host_private_key(kex->hostkey_type); - if (server_host_private == NULL) - fatal("Missing private key for hostkey type %d", - kex->hostkey_type); debug("expecting SSH2_MSG_KEX_ECDH_INIT"); packet_read_expect(SSH2_MSG_KEX_ECDH_INIT); @@ -115,12 +104,12 @@ kexecdh_server(Kex *kex) if (BN_bin2bn(kbuf, klen, shared_secret) == NULL) fatal("%s: BN_bin2bn failed", __func__); memset(kbuf, 0, klen); - xfree(kbuf); + free(kbuf); /* calc H */ key_to_blob(server_host_public, &server_host_key_blob, &sbloblen); kex_ecdh_hash( - kex->evp_md, + kex->hash_alg, group, kex->client_version_string, kex->server_version_string, @@ -142,9 +131,8 @@ kexecdh_server(Kex *kex) } /* sign H */ - if (PRIVSEP(key_sign(server_host_private, &signature, &slen, - hash, hashlen)) < 0) - fatal("kexdh_server: key_sign failed"); + kex->sign(server_host_private, server_host_public, &signature, &slen, + hash, hashlen); /* destroy_sensitive_data(); */ @@ -155,12 +143,12 @@ kexecdh_server(Kex *kex) packet_put_string(signature, slen); packet_send(); - xfree(signature); - xfree(server_host_key_blob); + free(signature); + free(server_host_key_blob); /* have keys, free server key */ EC_KEY_free(server_key); - kex_derive_keys(kex, hash, hashlen, shared_secret); + kex_derive_keys_bn(kex, hash, hashlen, shared_secret); BN_clear_free(shared_secret); kex_finish(kex); } @@ -1,4 +1,4 @@ -/* $OpenBSD: kexgex.c,v 1.27 2006/08/03 03:34:42 deraadt Exp $ */ +/* $OpenBSD: kexgex.c,v 1.28 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2000 Niels Provos. All rights reserved. * Copyright (c) 2001 Markus Friedl. All rights reserved. @@ -36,10 +36,12 @@ #include "cipher.h" #include "kex.h" #include "ssh2.h" +#include "digest.h" +#include "log.h" void kexgex_hash( - const EVP_MD *evp_md, + int hash_alg, char *client_version_string, char *server_version_string, char *ckexinit, int ckexinitlen, @@ -52,8 +54,7 @@ kexgex_hash( u_char **hash, u_int *hashlen) { Buffer b; - static u_char digest[EVP_MAX_MD_SIZE]; - EVP_MD_CTX md; + static u_char digest[SSH_DIGEST_MAX_LENGTH]; buffer_init(&b); buffer_put_cstring(&b, client_version_string); @@ -84,15 +85,14 @@ kexgex_hash( #ifdef DEBUG_KEXDH buffer_dump(&b); #endif - - EVP_DigestInit(&md, evp_md); - EVP_DigestUpdate(&md, buffer_ptr(&b), buffer_len(&b)); - EVP_DigestFinal(&md, digest, NULL); + if (ssh_digest_buffer(hash_alg, &b, digest, sizeof(digest)) != 0) + fatal("%s: ssh_digest_buffer failed", __func__); buffer_free(&b); - *hash = digest; - *hashlen = EVP_MD_size(evp_md); -#ifdef DEBUG_KEXDH - dump_digest("hash", digest, *hashlen); + +#ifdef DEBUG_KEX + dump_digest("hash", digest, ssh_digest_bytes(hash_alg)); #endif + *hash = digest; + *hashlen = ssh_digest_bytes(hash_alg); } @@ -1,4 +1,4 @@ -/* $OpenBSD: kexgexc.c,v 1.12 2010/11/10 01:33:07 djm Exp $ */ +/* $OpenBSD: kexgexc.c,v 1.16 2014/01/25 10:12:50 dtucker Exp $ */ /* * Copyright (c) 2000 Niels Provos. All rights reserved. * Copyright (c) 2001 Markus Friedl. All rights reserved. @@ -58,7 +58,7 @@ kexgex_client(Kex *kex) int min, max, nbits; DH *dh; - nbits = dh_estimate(kex->we_need * 8); + nbits = dh_estimate(kex->dh_need * 8); if (datafellows & SSH_OLD_DHGEX) { /* Old GEX request */ @@ -163,14 +163,14 @@ kexgex_client(Kex *kex) if (BN_bin2bn(kbuf, kout, shared_secret) == NULL) fatal("kexgex_client: BN_bin2bn failed"); memset(kbuf, 0, klen); - xfree(kbuf); + free(kbuf); if (datafellows & SSH_OLD_DHGEX) min = max = -1; /* calc and verify H */ kexgex_hash( - kex->evp_md, + kex->hash_alg, kex->client_version_string, kex->server_version_string, buffer_ptr(&kex->my), buffer_len(&kex->my), @@ -186,13 +186,13 @@ kexgex_client(Kex *kex) /* have keys, free DH */ DH_free(dh); - xfree(server_host_key_blob); + free(server_host_key_blob); BN_clear_free(dh_server_pub); if (key_verify(server_host_key, signature, slen, hash, hashlen) != 1) fatal("key_verify failed for server_host_key"); key_free(server_host_key); - xfree(signature); + free(signature); /* save session id */ if (kex->session_id == NULL) { @@ -200,7 +200,7 @@ kexgex_client(Kex *kex) kex->session_id = xmalloc(kex->session_id_len); memcpy(kex->session_id, hash, kex->session_id_len); } - kex_derive_keys(kex, hash, hashlen, shared_secret); + kex_derive_keys_bn(kex, hash, hashlen, shared_secret); BN_clear_free(shared_secret); kex_finish(kex); @@ -1,4 +1,4 @@ -/* $OpenBSD: kexgexs.c,v 1.14 2010/11/10 01:33:07 djm Exp $ */ +/* $OpenBSD: kexgexs.c,v 1.18 2014/01/12 08:13:13 djm Exp $ */ /* * Copyright (c) 2000 Niels Provos. All rights reserved. * Copyright (c) 2001 Markus Friedl. All rights reserved. @@ -68,10 +68,6 @@ kexgex_server(Kex *kex) if (server_host_public == NULL) fatal("Unsupported hostkey type %d", kex->hostkey_type); server_host_private = kex->load_host_private_key(kex->hostkey_type); - if (server_host_private == NULL) - fatal("Missing private key for hostkey type %d", - kex->hostkey_type); - type = packet_read(); switch (type) { @@ -155,7 +151,7 @@ kexgex_server(Kex *kex) if (BN_bin2bn(kbuf, kout, shared_secret) == NULL) fatal("kexgex_server: BN_bin2bn failed"); memset(kbuf, 0, klen); - xfree(kbuf); + free(kbuf); key_to_blob(server_host_public, &server_host_key_blob, &sbloblen); @@ -164,7 +160,7 @@ kexgex_server(Kex *kex) /* calc H */ kexgex_hash( - kex->evp_md, + kex->hash_alg, kex->client_version_string, kex->server_version_string, buffer_ptr(&kex->peer), buffer_len(&kex->peer), @@ -187,9 +183,8 @@ kexgex_server(Kex *kex) } /* sign H */ - if (PRIVSEP(key_sign(server_host_private, &signature, &slen, hash, - hashlen)) < 0) - fatal("kexgex_server: key_sign failed"); + kex->sign(server_host_private, server_host_public, &signature, &slen, + hash, hashlen); /* destroy_sensitive_data(); */ @@ -201,12 +196,12 @@ kexgex_server(Kex *kex) packet_put_string(signature, slen); packet_send(); - xfree(signature); - xfree(server_host_key_blob); + free(signature); + free(server_host_key_blob); /* have keys, free DH */ DH_free(dh); - kex_derive_keys(kex, hash, hashlen, shared_secret); + kex_derive_keys_bn(kex, hash, hashlen, shared_secret); BN_clear_free(shared_secret); kex_finish(kex); @@ -1,4 +1,4 @@ -/* $OpenBSD: key.c,v 1.98 2011/10/18 04:58:26 djm Exp $ */ +/* $OpenBSD: key.c,v 1.115 2014/01/09 23:20:00 djm Exp $ */ /* * read_bignum(): * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -39,6 +39,8 @@ #include <sys/param.h> #include <sys/types.h> +#include "crypto_api.h" + #include <openssl/evp.h> #include <openbsd-compat/openssl-compat.h> @@ -54,6 +56,10 @@ #include "log.h" #include "misc.h" #include "ssh2.h" +#include "digest.h" + +static int to_blob(const Key *, u_char **, u_int *, int); +static Key *key_from_blob2(const u_char *, u_int, int); static struct KeyCert * cert_new(void) @@ -83,6 +89,8 @@ key_new(int type) k->dsa = NULL; k->rsa = NULL; k->cert = NULL; + k->ed25519_sk = NULL; + k->ed25519_pk = NULL; switch (k->type) { case KEY_RSA1: case KEY_RSA: @@ -117,6 +125,10 @@ key_new(int type) /* Cannot do anything until we know the group */ break; #endif + case KEY_ED25519: + case KEY_ED25519_CERT: + /* no need to prealloc */ + break; case KEY_UNSPEC: break; default: @@ -161,6 +173,10 @@ key_add_private(Key *k) case KEY_ECDSA_CERT: /* Cannot do anything until we know the group */ break; + case KEY_ED25519: + case KEY_ED25519_CERT: + /* no need to prealloc */ + break; case KEY_UNSPEC: break; default: @@ -185,14 +201,13 @@ cert_free(struct KeyCert *cert) buffer_free(&cert->certblob); buffer_free(&cert->critical); buffer_free(&cert->extensions); - if (cert->key_id != NULL) - xfree(cert->key_id); + free(cert->key_id); for (i = 0; i < cert->nprincipals; i++) - xfree(cert->principals[i]); - if (cert->principals != NULL) - xfree(cert->principals); + free(cert->principals[i]); + free(cert->principals); if (cert->signature_key != NULL) key_free(cert->signature_key); + free(cert); } void @@ -224,6 +239,19 @@ key_free(Key *k) k->ecdsa = NULL; break; #endif + case KEY_ED25519: + case KEY_ED25519_CERT: + if (k->ed25519_pk) { + memset(k->ed25519_pk, 0, ED25519_PK_SZ); + free(k->ed25519_pk); + k->ed25519_pk = NULL; + } + if (k->ed25519_sk) { + memset(k->ed25519_sk, 0, ED25519_SK_SZ); + free(k->ed25519_sk); + k->ed25519_sk = NULL; + } + break; case KEY_UNSPEC: break; default: @@ -236,7 +264,7 @@ key_free(Key *k) k->cert = NULL; } - xfree(k); + free(k); } static int @@ -305,6 +333,10 @@ key_equal_public(const Key *a, const Key *b) BN_CTX_free(bnctx); return 1; #endif /* OPENSSL_HAS_ECC */ + case KEY_ED25519: + case KEY_ED25519_CERT: + return a->ed25519_pk != NULL && b->ed25519_pk != NULL && + memcmp(a->ed25519_pk, b->ed25519_pk, ED25519_PK_SZ) == 0; default: fatal("key_equal: bad key type %d", a->type); } @@ -324,27 +356,29 @@ key_equal(const Key *a, const Key *b) } u_char* -key_fingerprint_raw(Key *k, enum fp_type dgst_type, u_int *dgst_raw_length) +key_fingerprint_raw(const Key *k, enum fp_type dgst_type, + u_int *dgst_raw_length) { - const EVP_MD *md = NULL; - EVP_MD_CTX ctx; u_char *blob = NULL; u_char *retval = NULL; u_int len = 0; - int nlen, elen, otype; + int nlen, elen, hash_alg = -1; *dgst_raw_length = 0; + /* XXX switch to DIGEST_* directly? */ switch (dgst_type) { case SSH_FP_MD5: - md = EVP_md5(); + hash_alg = SSH_DIGEST_MD5; break; case SSH_FP_SHA1: - md = EVP_sha1(); + hash_alg = SSH_DIGEST_SHA1; + break; + case SSH_FP_SHA256: + hash_alg = SSH_DIGEST_SHA256; break; default: - fatal("key_fingerprint_raw: bad digest type %d", - dgst_type); + fatal("%s: bad digest type %d", __func__, dgst_type); } switch (k->type) { case KEY_RSA1: @@ -358,6 +392,7 @@ key_fingerprint_raw(Key *k, enum fp_type dgst_type, u_int *dgst_raw_length) case KEY_DSA: case KEY_ECDSA: case KEY_RSA: + case KEY_ED25519: key_to_blob(k, &blob, &len); break; case KEY_DSA_CERT_V00: @@ -365,27 +400,26 @@ key_fingerprint_raw(Key *k, enum fp_type dgst_type, u_int *dgst_raw_length) case KEY_DSA_CERT: case KEY_ECDSA_CERT: case KEY_RSA_CERT: + case KEY_ED25519_CERT: /* We want a fingerprint of the _key_ not of the cert */ - otype = k->type; - k->type = key_type_plain(k->type); - key_to_blob(k, &blob, &len); - k->type = otype; + to_blob(k, &blob, &len, 1); break; case KEY_UNSPEC: return retval; default: - fatal("key_fingerprint_raw: bad key type %d", k->type); + fatal("%s: bad key type %d", __func__, k->type); break; } if (blob != NULL) { - retval = xmalloc(EVP_MAX_MD_SIZE); - EVP_DigestInit(&ctx, md); - EVP_DigestUpdate(&ctx, blob, len); - EVP_DigestFinal(&ctx, retval, dgst_raw_length); + retval = xmalloc(SSH_DIGEST_MAX_LENGTH); + if ((ssh_digest_memory(hash_alg, blob, len, + retval, SSH_DIGEST_MAX_LENGTH)) != 0) + fatal("%s: digest_memory failed", __func__); memset(blob, 0, len); - xfree(blob); + free(blob); + *dgst_raw_length = ssh_digest_bytes(hash_alg); } else { - fatal("key_fingerprint_raw: blob is null"); + fatal("%s: blob is null", __func__); } return retval; } @@ -565,7 +599,7 @@ key_fingerprint_randomart(u_char *dgst_raw, u_int dgst_raw_len, const Key *k) } char * -key_fingerprint(Key *k, enum fp_type dgst_type, enum fp_rep dgst_rep) +key_fingerprint(const Key *k, enum fp_type dgst_type, enum fp_rep dgst_rep) { char *retval = NULL; u_char *dgst_raw; @@ -590,7 +624,7 @@ key_fingerprint(Key *k, enum fp_type dgst_type, enum fp_rep dgst_rep) break; } memset(dgst_raw, 0, dgst_raw_len); - xfree(dgst_raw); + free(dgst_raw); return retval; } @@ -694,11 +728,13 @@ key_read(Key *ret, char **cpp) case KEY_RSA: case KEY_DSA: case KEY_ECDSA: + case KEY_ED25519: case KEY_DSA_CERT_V00: case KEY_RSA_CERT_V00: case KEY_DSA_CERT: case KEY_ECDSA_CERT: case KEY_RSA_CERT: + case KEY_ED25519_CERT: space = strchr(cp, ' '); if (space == NULL) { debug3("key_read: missing whitespace"); @@ -735,11 +771,11 @@ key_read(Key *ret, char **cpp) n = uudecode(cp, blob, len); if (n < 0) { error("key_read: uudecode %s failed", cp); - xfree(blob); + free(blob); return -1; } k = key_from_blob(blob, (u_int)n); - xfree(blob); + free(blob); if (k == NULL) { error("key_read: key_from_blob %s failed", cp); return -1; @@ -800,6 +836,14 @@ key_read(Key *ret, char **cpp) #endif } #endif + if (key_type_plain(ret->type) == KEY_ED25519) { + free(ret->ed25519_pk); + ret->ed25519_pk = k->ed25519_pk; + k->ed25519_pk = NULL; +#ifdef DEBUG_PK + /* XXX */ +#endif + } success = 1; /*XXXX*/ key_free(k); @@ -863,6 +907,11 @@ key_write(const Key *key, FILE *f) return 0; break; #endif + case KEY_ED25519: + case KEY_ED25519_CERT: + if (key->ed25519_pk == NULL) + return 0; + break; case KEY_RSA: case KEY_RSA_CERT_V00: case KEY_RSA_CERT: @@ -880,43 +929,13 @@ key_write(const Key *key, FILE *f) fprintf(f, "%s %s", key_ssh_name(key), uu); success = 1; } - xfree(blob); - xfree(uu); + free(blob); + free(uu); return success; } const char * -key_type(const Key *k) -{ - switch (k->type) { - case KEY_RSA1: - return "RSA1"; - case KEY_RSA: - return "RSA"; - case KEY_DSA: - return "DSA"; -#ifdef OPENSSL_HAS_ECC - case KEY_ECDSA: - return "ECDSA"; -#endif - case KEY_RSA_CERT_V00: - return "RSA-CERT-V00"; - case KEY_DSA_CERT_V00: - return "DSA-CERT-V00"; - case KEY_RSA_CERT: - return "RSA-CERT"; - case KEY_DSA_CERT: - return "DSA-CERT"; -#ifdef OPENSSL_HAS_ECC - case KEY_ECDSA_CERT: - return "ECDSA-CERT"; -#endif - } - return "unknown"; -} - -const char * key_cert_type(const Key *k) { switch (k->cert->type) { @@ -929,48 +948,66 @@ key_cert_type(const Key *k) } } +struct keytype { + char *name; + char *shortname; + int type; + int nid; + int cert; +}; +static const struct keytype keytypes[] = { + { NULL, "RSA1", KEY_RSA1, 0, 0 }, + { "ssh-rsa", "RSA", KEY_RSA, 0, 0 }, + { "ssh-dss", "DSA", KEY_DSA, 0, 0 }, + { "ssh-ed25519", "ED25519", KEY_ED25519, 0, 0 }, +#ifdef OPENSSL_HAS_ECC + { "ecdsa-sha2-nistp256", "ECDSA", KEY_ECDSA, NID_X9_62_prime256v1, 0 }, + { "ecdsa-sha2-nistp384", "ECDSA", KEY_ECDSA, NID_secp384r1, 0 }, +# ifdef OPENSSL_HAS_NISTP521 + { "ecdsa-sha2-nistp521", "ECDSA", KEY_ECDSA, NID_secp521r1, 0 }, +# endif +#endif /* OPENSSL_HAS_ECC */ + { "ssh-rsa-cert-v01@openssh.com", "RSA-CERT", KEY_RSA_CERT, 0, 1 }, + { "ssh-dss-cert-v01@openssh.com", "DSA-CERT", KEY_DSA_CERT, 0, 1 }, +#ifdef OPENSSL_HAS_ECC + { "ecdsa-sha2-nistp256-cert-v01@openssh.com", "ECDSA-CERT", + KEY_ECDSA_CERT, NID_X9_62_prime256v1, 1 }, + { "ecdsa-sha2-nistp384-cert-v01@openssh.com", "ECDSA-CERT", + KEY_ECDSA_CERT, NID_secp384r1, 1 }, +# ifdef OPENSSL_HAS_NISTP521 + { "ecdsa-sha2-nistp521-cert-v01@openssh.com", "ECDSA-CERT", + KEY_ECDSA_CERT, NID_secp521r1, 1 }, +# endif +#endif /* OPENSSL_HAS_ECC */ + { "ssh-rsa-cert-v00@openssh.com", "RSA-CERT-V00", + KEY_RSA_CERT_V00, 0, 1 }, + { "ssh-dss-cert-v00@openssh.com", "DSA-CERT-V00", + KEY_DSA_CERT_V00, 0, 1 }, + { "ssh-ed25519-cert-v01@openssh.com", "ED25519-CERT", + KEY_ED25519_CERT, 0, 1 }, + { NULL, NULL, -1, -1, 0 } +}; + +const char * +key_type(const Key *k) +{ + const struct keytype *kt; + + for (kt = keytypes; kt->type != -1; kt++) { + if (kt->type == k->type) + return kt->shortname; + } + return "unknown"; +} + static const char * key_ssh_name_from_type_nid(int type, int nid) { - switch (type) { - case KEY_RSA: - return "ssh-rsa"; - case KEY_DSA: - return "ssh-dss"; - case KEY_RSA_CERT_V00: - return "ssh-rsa-cert-v00@openssh.com"; - case KEY_DSA_CERT_V00: - return "ssh-dss-cert-v00@openssh.com"; - case KEY_RSA_CERT: - return "ssh-rsa-cert-v01@openssh.com"; - case KEY_DSA_CERT: - return "ssh-dss-cert-v01@openssh.com"; -#ifdef OPENSSL_HAS_ECC - case KEY_ECDSA: - switch (nid) { - case NID_X9_62_prime256v1: - return "ecdsa-sha2-nistp256"; - case NID_secp384r1: - return "ecdsa-sha2-nistp384"; - case NID_secp521r1: - return "ecdsa-sha2-nistp521"; - default: - break; - } - break; - case KEY_ECDSA_CERT: - switch (nid) { - case NID_X9_62_prime256v1: - return "ecdsa-sha2-nistp256-cert-v01@openssh.com"; - case NID_secp384r1: - return "ecdsa-sha2-nistp384-cert-v01@openssh.com"; - case NID_secp521r1: - return "ecdsa-sha2-nistp521-cert-v01@openssh.com"; - default: - break; - } - break; -#endif /* OPENSSL_HAS_ECC */ + const struct keytype *kt; + + for (kt = keytypes; kt->type != -1; kt++) { + if (kt->type == type && (kt->nid == 0 || kt->nid == nid)) + return kt->name; } return "ssh-unknown"; } @@ -988,6 +1025,84 @@ key_ssh_name_plain(const Key *k) k->ecdsa_nid); } +int +key_type_from_name(char *name) +{ + const struct keytype *kt; + + for (kt = keytypes; kt->type != -1; kt++) { + /* Only allow shortname matches for plain key types */ + if ((kt->name != NULL && strcmp(name, kt->name) == 0) || + (!kt->cert && strcasecmp(kt->shortname, name) == 0)) + return kt->type; + } + debug2("key_type_from_name: unknown key type '%s'", name); + return KEY_UNSPEC; +} + +int +key_ecdsa_nid_from_name(const char *name) +{ + const struct keytype *kt; + + for (kt = keytypes; kt->type != -1; kt++) { + if (kt->type != KEY_ECDSA && kt->type != KEY_ECDSA_CERT) + continue; + if (kt->name != NULL && strcmp(name, kt->name) == 0) + return kt->nid; + } + debug2("%s: unknown/non-ECDSA key type '%s'", __func__, name); + return -1; +} + +char * +key_alg_list(int certs_only, int plain_only) +{ + char *ret = NULL; + size_t nlen, rlen = 0; + const struct keytype *kt; + + for (kt = keytypes; kt->type != -1; kt++) { + if (kt->name == NULL) + continue; + if ((certs_only && !kt->cert) || (plain_only && kt->cert)) + continue; + if (ret != NULL) + ret[rlen++] = '\n'; + nlen = strlen(kt->name); + ret = xrealloc(ret, 1, rlen + nlen + 2); + memcpy(ret + rlen, kt->name, nlen + 1); + rlen += nlen; + } + return ret; +} + +int +key_type_is_cert(int type) +{ + const struct keytype *kt; + + for (kt = keytypes; kt->type != -1; kt++) { + if (kt->type == type) + return kt->cert; + } + return 0; +} + +static int +key_type_is_valid_ca(int type) +{ + switch (type) { + case KEY_RSA: + case KEY_DSA: + case KEY_ECDSA: + case KEY_ED25519: + return 1; + default: + return 0; + } +} + u_int key_size(const Key *k) { @@ -1001,6 +1116,8 @@ key_size(const Key *k) case KEY_DSA_CERT_V00: case KEY_DSA_CERT: return BN_num_bits(k->dsa->p); + case KEY_ED25519: + return 256; /* XXX */ #ifdef OPENSSL_HAS_ECC case KEY_ECDSA: case KEY_ECDSA_CERT: @@ -1052,8 +1169,10 @@ key_ecdsa_bits_to_nid(int bits) return NID_X9_62_prime256v1; case 384: return NID_secp384r1; +# ifdef OPENSSL_HAS_NISTP521 case 521: return NID_secp521r1; +# endif #endif default: return -1; @@ -1068,7 +1187,9 @@ key_ecdsa_key_to_nid(EC_KEY *k) int nids[] = { NID_X9_62_prime256v1, NID_secp384r1, +# ifdef OPENSSL_HAS_NISTP521 NID_secp521r1, +# endif -1 }; int nid; @@ -1140,6 +1261,11 @@ key_generate(int type, u_int bits) case KEY_RSA1: k->rsa = rsa_generate_private_key(bits); break; + case KEY_ED25519: + k->ed25519_pk = xmalloc(ED25519_PK_SZ); + k->ed25519_sk = xmalloc(ED25519_SK_SZ); + crypto_sign_ed25519_keypair(k->ed25519_pk, k->ed25519_sk); + break; case KEY_RSA_CERT_V00: case KEY_DSA_CERT_V00: case KEY_RSA_CERT: @@ -1233,6 +1359,14 @@ key_from_private(const Key *k) (BN_copy(n->rsa->e, k->rsa->e) == NULL)) fatal("key_from_private: BN_copy failed"); break; + case KEY_ED25519: + case KEY_ED25519_CERT: + n = key_new(k->type); + if (k->ed25519_pk != NULL) { + n->ed25519_pk = xmalloc(ED25519_PK_SZ); + memcpy(n->ed25519_pk, k->ed25519_pk, ED25519_PK_SZ); + } + break; default: fatal("key_from_private: unknown type %d", k->type); break; @@ -1243,65 +1377,6 @@ key_from_private(const Key *k) } int -key_type_from_name(char *name) -{ - if (strcmp(name, "rsa1") == 0) { - return KEY_RSA1; - } else if (strcmp(name, "rsa") == 0) { - return KEY_RSA; - } else if (strcmp(name, "dsa") == 0) { - return KEY_DSA; - } else if (strcmp(name, "ssh-rsa") == 0) { - return KEY_RSA; - } else if (strcmp(name, "ssh-dss") == 0) { - return KEY_DSA; -#ifdef OPENSSL_HAS_ECC - } else if (strcmp(name, "ecdsa") == 0 || - strcmp(name, "ecdsa-sha2-nistp256") == 0 || - strcmp(name, "ecdsa-sha2-nistp384") == 0 || - strcmp(name, "ecdsa-sha2-nistp521") == 0) { - return KEY_ECDSA; -#endif - } else if (strcmp(name, "ssh-rsa-cert-v00@openssh.com") == 0) { - return KEY_RSA_CERT_V00; - } else if (strcmp(name, "ssh-dss-cert-v00@openssh.com") == 0) { - return KEY_DSA_CERT_V00; - } else if (strcmp(name, "ssh-rsa-cert-v01@openssh.com") == 0) { - return KEY_RSA_CERT; - } else if (strcmp(name, "ssh-dss-cert-v01@openssh.com") == 0) { - return KEY_DSA_CERT; -#ifdef OPENSSL_HAS_ECC - } else if (strcmp(name, "ecdsa-sha2-nistp256-cert-v01@openssh.com") == 0 || - strcmp(name, "ecdsa-sha2-nistp384-cert-v01@openssh.com") == 0 || - strcmp(name, "ecdsa-sha2-nistp521-cert-v01@openssh.com") == 0) { - return KEY_ECDSA_CERT; -#endif - } - - debug2("key_type_from_name: unknown key type '%s'", name); - return KEY_UNSPEC; -} - -int -key_ecdsa_nid_from_name(const char *name) -{ -#ifdef OPENSSL_HAS_ECC - if (strcmp(name, "ecdsa-sha2-nistp256") == 0 || - strcmp(name, "ecdsa-sha2-nistp256-cert-v01@openssh.com") == 0) - return NID_X9_62_prime256v1; - if (strcmp(name, "ecdsa-sha2-nistp384") == 0 || - strcmp(name, "ecdsa-sha2-nistp384-cert-v01@openssh.com") == 0) - return NID_secp384r1; - if (strcmp(name, "ecdsa-sha2-nistp521") == 0 || - strcmp(name, "ecdsa-sha2-nistp521-cert-v01@openssh.com") == 0) - return NID_secp521r1; -#endif /* OPENSSL_HAS_ECC */ - - debug2("%s: unknown/non-ECDSA key type '%s'", __func__, name); - return -1; -} - -int key_names_valid2(const char *names) { char *s, *cp, *p; @@ -1314,12 +1389,12 @@ key_names_valid2(const char *names) switch (key_type_from_name(p)) { case KEY_RSA1: case KEY_UNSPEC: - xfree(s); + free(s); return 0; } } debug3("key names ok: [%s]", names); - xfree(s); + free(s); return 1; } @@ -1411,14 +1486,12 @@ cert_parse(Buffer *b, Key *key, const u_char *blob, u_int blen) } buffer_clear(&tmp); - if ((key->cert->signature_key = key_from_blob(sig_key, - sklen)) == NULL) { + if ((key->cert->signature_key = key_from_blob2(sig_key, sklen, 0)) + == NULL) { error("%s: Signature key invalid", __func__); goto out; } - if (key->cert->signature_key->type != KEY_RSA && - key->cert->signature_key->type != KEY_DSA && - key->cert->signature_key->type != KEY_ECDSA) { + if (!key_type_is_valid_ca(key->cert->signature_key->type)) { error("%s: Invalid signature key type %s (%d)", __func__, key_type(key->cert->signature_key), key->cert->signature_key->type); @@ -1441,25 +1514,22 @@ cert_parse(Buffer *b, Key *key, const u_char *blob, u_int blen) out: buffer_free(&tmp); - if (principals != NULL) - xfree(principals); - if (critical != NULL) - xfree(critical); - if (exts != NULL) - xfree(exts); - if (sig_key != NULL) - xfree(sig_key); - if (sig != NULL) - xfree(sig); + free(principals); + free(critical); + free(exts); + free(sig_key); + free(sig); return ret; } -Key * -key_from_blob(const u_char *blob, u_int blen) +static Key * +key_from_blob2(const u_char *blob, u_int blen, int allow_cert) { Buffer b; int rlen, type; + u_int len; char *ktype = NULL, *curve = NULL; + u_char *pk = NULL; Key *key = NULL; #ifdef OPENSSL_HAS_ECC EC_POINT *q = NULL; @@ -1481,7 +1551,10 @@ key_from_blob(const u_char *blob, u_int blen) if (key_type_plain(type) == KEY_ECDSA) nid = key_ecdsa_nid_from_name(ktype); #endif - + if (!allow_cert && key_type_is_cert(type)) { + error("key_from_blob: certificate not allowed in this context"); + goto out; + } switch (type) { case KEY_RSA_CERT: (void)buffer_get_string_ptr_ret(&b, NULL); /* Skip nonce */ @@ -1555,6 +1628,23 @@ key_from_blob(const u_char *blob, u_int blen) #endif break; #endif /* OPENSSL_HAS_ECC */ + case KEY_ED25519_CERT: + (void)buffer_get_string_ptr_ret(&b, NULL); /* Skip nonce */ + /* FALLTHROUGH */ + case KEY_ED25519: + if ((pk = buffer_get_string_ret(&b, &len)) == NULL) { + error("key_from_blob: can't read ed25519 key"); + goto badkey; + } + if (len != ED25519_PK_SZ) { + error("key_from_blob: ed25519 len %d != %d", + len, ED25519_PK_SZ); + goto badkey; + } + key = key_new(type); + key->ed25519_pk = pk; + pk = NULL; + break; case KEY_UNSPEC: key = key_new(type); break; @@ -1570,10 +1660,9 @@ key_from_blob(const u_char *blob, u_int blen) if (key != NULL && rlen != 0) error("key_from_blob: remaining bytes in key blob %d", rlen); out: - if (ktype != NULL) - xfree(ktype); - if (curve != NULL) - xfree(curve); + free(ktype); + free(curve); + free(pk); #ifdef OPENSSL_HAS_ECC if (q != NULL) EC_POINT_free(q); @@ -1582,29 +1671,42 @@ key_from_blob(const u_char *blob, u_int blen) return key; } -int -key_to_blob(const Key *key, u_char **blobp, u_int *lenp) +Key * +key_from_blob(const u_char *blob, u_int blen) +{ + return key_from_blob2(blob, blen, 1); +} + +static int +to_blob(const Key *key, u_char **blobp, u_int *lenp, int force_plain) { Buffer b; - int len; + int len, type; + if (blobp != NULL) + *blobp = NULL; + if (lenp != NULL) + *lenp = 0; if (key == NULL) { error("key_to_blob: key == NULL"); return 0; } buffer_init(&b); - switch (key->type) { + type = force_plain ? key_type_plain(key->type) : key->type; + switch (type) { case KEY_DSA_CERT_V00: case KEY_RSA_CERT_V00: case KEY_DSA_CERT: case KEY_ECDSA_CERT: case KEY_RSA_CERT: + case KEY_ED25519_CERT: /* Use the existing blob */ buffer_append(&b, buffer_ptr(&key->cert->certblob), buffer_len(&key->cert->certblob)); break; case KEY_DSA: - buffer_put_cstring(&b, key_ssh_name(key)); + buffer_put_cstring(&b, + key_ssh_name_from_type_nid(type, key->ecdsa_nid)); buffer_put_bignum2(&b, key->dsa->p); buffer_put_bignum2(&b, key->dsa->q); buffer_put_bignum2(&b, key->dsa->g); @@ -1612,17 +1714,24 @@ key_to_blob(const Key *key, u_char **blobp, u_int *lenp) break; #ifdef OPENSSL_HAS_ECC case KEY_ECDSA: - buffer_put_cstring(&b, key_ssh_name(key)); + buffer_put_cstring(&b, + key_ssh_name_from_type_nid(type, key->ecdsa_nid)); buffer_put_cstring(&b, key_curve_nid_to_name(key->ecdsa_nid)); buffer_put_ecpoint(&b, EC_KEY_get0_group(key->ecdsa), EC_KEY_get0_public_key(key->ecdsa)); break; #endif case KEY_RSA: - buffer_put_cstring(&b, key_ssh_name(key)); + buffer_put_cstring(&b, + key_ssh_name_from_type_nid(type, key->ecdsa_nid)); buffer_put_bignum2(&b, key->rsa->e); buffer_put_bignum2(&b, key->rsa->n); break; + case KEY_ED25519: + buffer_put_cstring(&b, + key_ssh_name_from_type_nid(type, key->ecdsa_nid)); + buffer_put_string(&b, key->ed25519_pk, ED25519_PK_SZ); + break; default: error("key_to_blob: unsupported key type %d", key->type); buffer_free(&b); @@ -1641,6 +1750,12 @@ key_to_blob(const Key *key, u_char **blobp, u_int *lenp) } int +key_to_blob(const Key *key, u_char **blobp, u_int *lenp) +{ + return to_blob(key, blobp, lenp, 0); +} + +int key_sign( const Key *key, u_char **sigp, u_int *lenp, @@ -1660,6 +1775,9 @@ key_sign( case KEY_RSA_CERT: case KEY_RSA: return ssh_rsa_sign(key, sigp, lenp, data, datalen); + case KEY_ED25519: + case KEY_ED25519_CERT: + return ssh_ed25519_sign(key, sigp, lenp, data, datalen); default: error("key_sign: invalid key type %d", key->type); return -1; @@ -1693,6 +1811,9 @@ key_verify( case KEY_RSA_CERT: case KEY_RSA: return ssh_rsa_verify(key, signature, signaturelen, data, datalen); + case KEY_ED25519: + case KEY_ED25519_CERT: + return ssh_ed25519_verify(key, signature, signaturelen, data, datalen); default: error("key_verify: invalid key type %d", key->type); return -1; @@ -1712,6 +1833,8 @@ key_demote(const Key *k) pk->dsa = NULL; pk->ecdsa = NULL; pk->rsa = NULL; + pk->ed25519_pk = NULL; + pk->ed25519_sk = NULL; switch (k->type) { case KEY_RSA_CERT_V00: @@ -1755,8 +1878,17 @@ key_demote(const Key *k) fatal("key_demote: EC_KEY_set_public_key failed"); break; #endif + case KEY_ED25519_CERT: + key_cert_copy(k, pk); + /* FALLTHROUGH */ + case KEY_ED25519: + if (k->ed25519_pk != NULL) { + pk->ed25519_pk = xmalloc(ED25519_PK_SZ); + memcpy(pk->ed25519_pk, k->ed25519_pk, ED25519_PK_SZ); + } + break; default: - fatal("key_free: bad key type %d", k->type); + fatal("key_demote: bad key type %d", k->type); break; } @@ -1768,16 +1900,7 @@ key_is_cert(const Key *k) { if (k == NULL) return 0; - switch (k->type) { - case KEY_RSA_CERT_V00: - case KEY_DSA_CERT_V00: - case KEY_RSA_CERT: - case KEY_DSA_CERT: - case KEY_ECDSA_CERT: - return 1; - default: - return 0; - } + return key_type_is_cert(k->type); } /* Return the cert-less equivalent to a certified key type */ @@ -1793,12 +1916,14 @@ key_type_plain(int type) return KEY_DSA; case KEY_ECDSA_CERT: return KEY_ECDSA; + case KEY_ED25519_CERT: + return KEY_ED25519; default: return type; } } -/* Convert a KEY_RSA or KEY_DSA to their _CERT equivalent */ +/* Convert a plain key to their _CERT equivalent */ int key_to_certified(Key *k, int legacy) { @@ -1818,41 +1943,34 @@ key_to_certified(Key *k, int legacy) k->cert = cert_new(); k->type = KEY_ECDSA_CERT; return 0; + case KEY_ED25519: + if (legacy) + fatal("%s: legacy ED25519 certificates are not " + "supported", __func__); + k->cert = cert_new(); + k->type = KEY_ED25519_CERT; + return 0; default: error("%s: key has incorrect type %s", __func__, key_type(k)); return -1; } } -/* Convert a KEY_RSA_CERT or KEY_DSA_CERT to their raw key equivalent */ +/* Convert a certificate to its raw key equivalent */ int key_drop_cert(Key *k) { - switch (k->type) { - case KEY_RSA_CERT_V00: - case KEY_RSA_CERT: - cert_free(k->cert); - k->type = KEY_RSA; - return 0; - case KEY_DSA_CERT_V00: - case KEY_DSA_CERT: - cert_free(k->cert); - k->type = KEY_DSA; - return 0; - case KEY_ECDSA_CERT: - cert_free(k->cert); - k->type = KEY_ECDSA; - return 0; - default: + if (!key_type_is_cert(k->type)) { error("%s: key has incorrect type %s", __func__, key_type(k)); return -1; } + cert_free(k->cert); + k->cert = NULL; + k->type = key_type_plain(k->type); + return 0; } -/* - * Sign a KEY_RSA_CERT, KEY_DSA_CERT or KEY_ECDSA_CERT, (re-)generating - * the signed certblob - */ +/* Sign a certified key, (re-)generating the signed certblob. */ int key_certify(Key *k, Key *ca) { @@ -1871,8 +1989,7 @@ key_certify(Key *k, Key *ca) return -1; } - if (ca->type != KEY_RSA && ca->type != KEY_DSA && - ca->type != KEY_ECDSA) { + if (!key_type_is_valid_ca(ca->type)) { error("%s: CA key has unsupported type %s", __func__, key_type(ca)); return -1; @@ -1888,6 +2005,7 @@ key_certify(Key *k, Key *ca) if (!key_cert_is_legacy(k)) buffer_put_string(&k->cert->certblob, nonce, sizeof(nonce)); + /* XXX this substantially duplicates to_blob(); refactor */ switch (k->type) { case KEY_DSA_CERT_V00: case KEY_DSA_CERT: @@ -1910,10 +2028,14 @@ key_certify(Key *k, Key *ca) buffer_put_bignum2(&k->cert->certblob, k->rsa->e); buffer_put_bignum2(&k->cert->certblob, k->rsa->n); break; + case KEY_ED25519_CERT: + buffer_put_string(&k->cert->certblob, + k->ed25519_pk, ED25519_PK_SZ); + break; default: error("%s: key has incorrect type %s", __func__, key_type(k)); buffer_clear(&k->cert->certblob); - xfree(ca_blob); + free(ca_blob); return -1; } @@ -1949,7 +2071,7 @@ key_certify(Key *k, Key *ca) buffer_put_string(&k->cert->certblob, NULL, 0); /* reserved */ buffer_put_string(&k->cert->certblob, ca_blob, ca_len); - xfree(ca_blob); + free(ca_blob); /* Sign the whole mess */ if (key_sign(ca, &sig_blob, &sig_len, buffer_ptr(&k->cert->certblob), @@ -1960,7 +2082,7 @@ key_certify(Key *k, Key *ca) } /* Append signature and we are done */ buffer_put_string(&k->cert->certblob, sig_blob, sig_len); - xfree(sig_blob); + free(sig_blob); return 0; } @@ -2019,7 +2141,7 @@ key_cert_check_authority(const Key *k, int want_host, int require_principal, } int -key_cert_is_legacy(Key *k) +key_cert_is_legacy(const Key *k) { switch (k->type) { case KEY_DSA_CERT_V00: @@ -2039,8 +2161,10 @@ key_curve_name_to_nid(const char *name) return NID_X9_62_prime256v1; else if (strcmp(name, "nistp384") == 0) return NID_secp384r1; +# ifdef OPENSSL_HAS_NISTP521 else if (strcmp(name, "nistp521") == 0) return NID_secp521r1; +# endif #endif debug("%s: unsupported EC curve name \"%.100s\"", __func__, name); @@ -2056,8 +2180,10 @@ key_curve_nid_to_bits(int nid) return 256; case NID_secp384r1: return 384; +# ifdef OPENSSL_HAS_NISTP521 case NID_secp521r1: return 521; +# endif #endif default: error("%s: unsupported EC curve nid %d", __func__, nid); @@ -2073,16 +2199,18 @@ key_curve_nid_to_name(int nid) return "nistp256"; else if (nid == NID_secp384r1) return "nistp384"; +# ifdef OPENSSL_HAS_NISTP521 else if (nid == NID_secp521r1) return "nistp521"; +# endif #endif error("%s: unsupported EC curve nid %d", __func__, nid); return NULL; } #ifdef OPENSSL_HAS_ECC -const EVP_MD * -key_ec_nid_to_evpmd(int nid) +int +key_ec_nid_to_hash_alg(int nid) { int kbits = key_curve_nid_to_bits(nid); @@ -2090,11 +2218,11 @@ key_ec_nid_to_evpmd(int nid) fatal("%s: invalid nid %d", __func__, nid); /* RFC5656 section 6.2.1 */ if (kbits <= 256) - return EVP_sha256(); + return SSH_DIGEST_SHA256; else if (kbits <= 384) - return EVP_sha384(); + return SSH_DIGEST_SHA384; else - return EVP_sha512(); + return SSH_DIGEST_SHA512; } int @@ -2266,3 +2394,232 @@ key_dump_ec_key(const EC_KEY *key) } #endif /* defined(DEBUG_KEXECDH) || defined(DEBUG_PK) */ #endif /* OPENSSL_HAS_ECC */ + +void +key_private_serialize(const Key *key, Buffer *b) +{ + buffer_put_cstring(b, key_ssh_name(key)); + switch (key->type) { + case KEY_RSA: + buffer_put_bignum2(b, key->rsa->n); + buffer_put_bignum2(b, key->rsa->e); + buffer_put_bignum2(b, key->rsa->d); + buffer_put_bignum2(b, key->rsa->iqmp); + buffer_put_bignum2(b, key->rsa->p); + buffer_put_bignum2(b, key->rsa->q); + break; + case KEY_RSA_CERT_V00: + case KEY_RSA_CERT: + if (key->cert == NULL || buffer_len(&key->cert->certblob) == 0) + fatal("%s: no cert/certblob", __func__); + buffer_put_string(b, buffer_ptr(&key->cert->certblob), + buffer_len(&key->cert->certblob)); + buffer_put_bignum2(b, key->rsa->d); + buffer_put_bignum2(b, key->rsa->iqmp); + buffer_put_bignum2(b, key->rsa->p); + buffer_put_bignum2(b, key->rsa->q); + break; + case KEY_DSA: + buffer_put_bignum2(b, key->dsa->p); + buffer_put_bignum2(b, key->dsa->q); + buffer_put_bignum2(b, key->dsa->g); + buffer_put_bignum2(b, key->dsa->pub_key); + buffer_put_bignum2(b, key->dsa->priv_key); + break; + case KEY_DSA_CERT_V00: + case KEY_DSA_CERT: + if (key->cert == NULL || buffer_len(&key->cert->certblob) == 0) + fatal("%s: no cert/certblob", __func__); + buffer_put_string(b, buffer_ptr(&key->cert->certblob), + buffer_len(&key->cert->certblob)); + buffer_put_bignum2(b, key->dsa->priv_key); + break; +#ifdef OPENSSL_HAS_ECC + case KEY_ECDSA: + buffer_put_cstring(b, key_curve_nid_to_name(key->ecdsa_nid)); + buffer_put_ecpoint(b, EC_KEY_get0_group(key->ecdsa), + EC_KEY_get0_public_key(key->ecdsa)); + buffer_put_bignum2(b, EC_KEY_get0_private_key(key->ecdsa)); + break; + case KEY_ECDSA_CERT: + if (key->cert == NULL || buffer_len(&key->cert->certblob) == 0) + fatal("%s: no cert/certblob", __func__); + buffer_put_string(b, buffer_ptr(&key->cert->certblob), + buffer_len(&key->cert->certblob)); + buffer_put_bignum2(b, EC_KEY_get0_private_key(key->ecdsa)); + break; +#endif /* OPENSSL_HAS_ECC */ + case KEY_ED25519: + buffer_put_string(b, key->ed25519_pk, ED25519_PK_SZ); + buffer_put_string(b, key->ed25519_sk, ED25519_SK_SZ); + break; + case KEY_ED25519_CERT: + if (key->cert == NULL || buffer_len(&key->cert->certblob) == 0) + fatal("%s: no cert/certblob", __func__); + buffer_put_string(b, buffer_ptr(&key->cert->certblob), + buffer_len(&key->cert->certblob)); + buffer_put_string(b, key->ed25519_pk, ED25519_PK_SZ); + buffer_put_string(b, key->ed25519_sk, ED25519_SK_SZ); + break; + } +} + +Key * +key_private_deserialize(Buffer *blob) +{ + char *type_name; + Key *k = NULL; + u_char *cert; + u_int len, pklen, sklen; + int type; +#ifdef OPENSSL_HAS_ECC + char *curve; + BIGNUM *exponent; + EC_POINT *q; +#endif + + type_name = buffer_get_string(blob, NULL); + type = key_type_from_name(type_name); + switch (type) { + case KEY_DSA: + k = key_new_private(type); + buffer_get_bignum2(blob, k->dsa->p); + buffer_get_bignum2(blob, k->dsa->q); + buffer_get_bignum2(blob, k->dsa->g); + buffer_get_bignum2(blob, k->dsa->pub_key); + buffer_get_bignum2(blob, k->dsa->priv_key); + break; + case KEY_DSA_CERT_V00: + case KEY_DSA_CERT: + cert = buffer_get_string(blob, &len); + if ((k = key_from_blob(cert, len)) == NULL) + fatal("Certificate parse failed"); + free(cert); + key_add_private(k); + buffer_get_bignum2(blob, k->dsa->priv_key); + break; +#ifdef OPENSSL_HAS_ECC + case KEY_ECDSA: + k = key_new_private(type); + k->ecdsa_nid = key_ecdsa_nid_from_name(type_name); + curve = buffer_get_string(blob, NULL); + if (k->ecdsa_nid != key_curve_name_to_nid(curve)) + fatal("%s: curve names mismatch", __func__); + free(curve); + k->ecdsa = EC_KEY_new_by_curve_name(k->ecdsa_nid); + if (k->ecdsa == NULL) + fatal("%s: EC_KEY_new_by_curve_name failed", + __func__); + q = EC_POINT_new(EC_KEY_get0_group(k->ecdsa)); + if (q == NULL) + fatal("%s: BN_new failed", __func__); + if ((exponent = BN_new()) == NULL) + fatal("%s: BN_new failed", __func__); + buffer_get_ecpoint(blob, + EC_KEY_get0_group(k->ecdsa), q); + buffer_get_bignum2(blob, exponent); + if (EC_KEY_set_public_key(k->ecdsa, q) != 1) + fatal("%s: EC_KEY_set_public_key failed", + __func__); + if (EC_KEY_set_private_key(k->ecdsa, exponent) != 1) + fatal("%s: EC_KEY_set_private_key failed", + __func__); + if (key_ec_validate_public(EC_KEY_get0_group(k->ecdsa), + EC_KEY_get0_public_key(k->ecdsa)) != 0) + fatal("%s: bad ECDSA public key", __func__); + if (key_ec_validate_private(k->ecdsa) != 0) + fatal("%s: bad ECDSA private key", __func__); + BN_clear_free(exponent); + EC_POINT_free(q); + break; + case KEY_ECDSA_CERT: + cert = buffer_get_string(blob, &len); + if ((k = key_from_blob(cert, len)) == NULL) + fatal("Certificate parse failed"); + free(cert); + key_add_private(k); + if ((exponent = BN_new()) == NULL) + fatal("%s: BN_new failed", __func__); + buffer_get_bignum2(blob, exponent); + if (EC_KEY_set_private_key(k->ecdsa, exponent) != 1) + fatal("%s: EC_KEY_set_private_key failed", + __func__); + if (key_ec_validate_public(EC_KEY_get0_group(k->ecdsa), + EC_KEY_get0_public_key(k->ecdsa)) != 0 || + key_ec_validate_private(k->ecdsa) != 0) + fatal("%s: bad ECDSA key", __func__); + BN_clear_free(exponent); + break; +#endif + case KEY_RSA: + k = key_new_private(type); + buffer_get_bignum2(blob, k->rsa->n); + buffer_get_bignum2(blob, k->rsa->e); + buffer_get_bignum2(blob, k->rsa->d); + buffer_get_bignum2(blob, k->rsa->iqmp); + buffer_get_bignum2(blob, k->rsa->p); + buffer_get_bignum2(blob, k->rsa->q); + + /* Generate additional parameters */ + rsa_generate_additional_parameters(k->rsa); + break; + case KEY_RSA_CERT_V00: + case KEY_RSA_CERT: + cert = buffer_get_string(blob, &len); + if ((k = key_from_blob(cert, len)) == NULL) + fatal("Certificate parse failed"); + free(cert); + key_add_private(k); + buffer_get_bignum2(blob, k->rsa->d); + buffer_get_bignum2(blob, k->rsa->iqmp); + buffer_get_bignum2(blob, k->rsa->p); + buffer_get_bignum2(blob, k->rsa->q); + break; + case KEY_ED25519: + k = key_new_private(type); + k->ed25519_pk = buffer_get_string(blob, &pklen); + k->ed25519_sk = buffer_get_string(blob, &sklen); + if (pklen != ED25519_PK_SZ) + fatal("%s: ed25519 pklen %d != %d", + __func__, pklen, ED25519_PK_SZ); + if (sklen != ED25519_SK_SZ) + fatal("%s: ed25519 sklen %d != %d", + __func__, sklen, ED25519_SK_SZ); + break; + case KEY_ED25519_CERT: + cert = buffer_get_string(blob, &len); + if ((k = key_from_blob(cert, len)) == NULL) + fatal("Certificate parse failed"); + free(cert); + key_add_private(k); + k->ed25519_pk = buffer_get_string(blob, &pklen); + k->ed25519_sk = buffer_get_string(blob, &sklen); + if (pklen != ED25519_PK_SZ) + fatal("%s: ed25519 pklen %d != %d", + __func__, pklen, ED25519_PK_SZ); + if (sklen != ED25519_SK_SZ) + fatal("%s: ed25519 sklen %d != %d", + __func__, sklen, ED25519_SK_SZ); + break; + default: + free(type_name); + buffer_clear(blob); + return NULL; + } + free(type_name); + + /* enable blinding */ + switch (k->type) { + case KEY_RSA: + case KEY_RSA_CERT_V00: + case KEY_RSA_CERT: + case KEY_RSA1: + if (RSA_blinding_on(k->rsa, NULL) != 1) { + error("%s: RSA_blinding_on failed", __func__); + key_free(k); + return NULL; + } + break; + } + return k; +} @@ -1,4 +1,4 @@ -/* $OpenBSD: key.h,v 1.33 2010/10/28 11:22:09 djm Exp $ */ +/* $OpenBSD: key.h,v 1.41 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2000, 2001 Markus Friedl. All rights reserved. @@ -39,16 +39,19 @@ enum types { KEY_RSA, KEY_DSA, KEY_ECDSA, + KEY_ED25519, KEY_RSA_CERT, KEY_DSA_CERT, KEY_ECDSA_CERT, + KEY_ED25519_CERT, KEY_RSA_CERT_V00, KEY_DSA_CERT_V00, KEY_UNSPEC }; enum fp_type { SSH_FP_SHA1, - SSH_FP_MD5 + SSH_FP_MD5, + SSH_FP_SHA256 }; enum fp_rep { SSH_FP_HEX, @@ -85,8 +88,13 @@ struct Key { void *ecdsa; #endif struct KeyCert *cert; + u_char *ed25519_sk; + u_char *ed25519_pk; }; +#define ED25519_SK_SZ crypto_sign_ed25519_SECRETKEYBYTES +#define ED25519_PK_SZ crypto_sign_ed25519_PUBLICKEYBYTES + Key *key_new(int); void key_add_private(Key *); Key *key_new_private(int); @@ -94,8 +102,8 @@ void key_free(Key *); Key *key_demote(const Key *); int key_equal_public(const Key *, const Key *); int key_equal(const Key *, const Key *); -char *key_fingerprint(Key *, enum fp_type, enum fp_rep); -u_char *key_fingerprint_raw(Key *, enum fp_type, u_int *); +char *key_fingerprint(const Key *, enum fp_type, enum fp_rep); +u_char *key_fingerprint_raw(const Key *, enum fp_type, u_int *); const char *key_type(const Key *); const char *key_cert_type(const Key *); int key_write(const Key *, FILE *); @@ -106,6 +114,7 @@ Key *key_generate(int, u_int); Key *key_from_private(const Key *); int key_type_from_name(char *); int key_is_cert(const Key *); +int key_type_is_cert(int); int key_type_plain(int); int key_to_certified(Key *, int); int key_drop_cert(Key *); @@ -113,19 +122,20 @@ int key_certify(Key *, Key *); void key_cert_copy(const Key *, struct Key *); int key_cert_check_authority(const Key *, int, int, const char *, const char **); -int key_cert_is_legacy(Key *); +int key_cert_is_legacy(const Key *); int key_ecdsa_nid_from_name(const char *); int key_curve_name_to_nid(const char *); -const char * key_curve_nid_to_name(int); +const char *key_curve_nid_to_name(int); u_int key_curve_nid_to_bits(int); int key_ecdsa_bits_to_nid(int); #ifdef OPENSSL_HAS_ECC int key_ecdsa_key_to_nid(EC_KEY *); -const EVP_MD * key_ec_nid_to_evpmd(int nid); +int key_ec_nid_to_hash_alg(int nid); int key_ec_validate_public(const EC_GROUP *, const EC_POINT *); int key_ec_validate_private(const EC_KEY *); #endif +char *key_alg_list(int, int); Key *key_from_blob(const u_char *, u_int); int key_to_blob(const Key *, u_char **, u_int *); @@ -142,10 +152,15 @@ int ssh_ecdsa_sign(const Key *, u_char **, u_int *, const u_char *, u_int); int ssh_ecdsa_verify(const Key *, const u_char *, u_int, const u_char *, u_int); int ssh_rsa_sign(const Key *, u_char **, u_int *, const u_char *, u_int); int ssh_rsa_verify(const Key *, const u_char *, u_int, const u_char *, u_int); +int ssh_ed25519_sign(const Key *, u_char **, u_int *, const u_char *, u_int); +int ssh_ed25519_verify(const Key *, const u_char *, u_int, const u_char *, u_int); #if defined(OPENSSL_HAS_ECC) && (defined(DEBUG_KEXECDH) || defined(DEBUG_PK)) void key_dump_ec_point(const EC_GROUP *, const EC_POINT *); void key_dump_ec_key(const EC_KEY *); #endif +void key_private_serialize(const Key *, Buffer *); +Key *key_private_deserialize(Buffer *); + #endif @@ -0,0 +1,1237 @@ +/* + * Copyright (c) 2012 Damien Miller <djm@mindrot.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* $OpenBSD: krl.c,v 1.13 2013/07/20 22:20:42 djm Exp $ */ + +#include "includes.h" + +#include <sys/types.h> +#include <sys/param.h> +#include <openbsd-compat/sys-tree.h> +#include <openbsd-compat/sys-queue.h> + +#include <errno.h> +#include <fcntl.h> +#include <limits.h> +#include <string.h> +#include <time.h> +#include <unistd.h> + +#include "buffer.h" +#include "key.h" +#include "authfile.h" +#include "misc.h" +#include "log.h" +#include "xmalloc.h" + +#include "krl.h" + +/* #define DEBUG_KRL */ +#ifdef DEBUG_KRL +# define KRL_DBG(x) debug3 x +#else +# define KRL_DBG(x) +#endif + +/* + * Trees of revoked serial numbers, key IDs and keys. This allows + * quick searching, querying and producing lists in canonical order. + */ + +/* Tree of serial numbers. XXX make smarter: really need a real sparse bitmap */ +struct revoked_serial { + u_int64_t lo, hi; + RB_ENTRY(revoked_serial) tree_entry; +}; +static int serial_cmp(struct revoked_serial *a, struct revoked_serial *b); +RB_HEAD(revoked_serial_tree, revoked_serial); +RB_GENERATE_STATIC(revoked_serial_tree, revoked_serial, tree_entry, serial_cmp); + +/* Tree of key IDs */ +struct revoked_key_id { + char *key_id; + RB_ENTRY(revoked_key_id) tree_entry; +}; +static int key_id_cmp(struct revoked_key_id *a, struct revoked_key_id *b); +RB_HEAD(revoked_key_id_tree, revoked_key_id); +RB_GENERATE_STATIC(revoked_key_id_tree, revoked_key_id, tree_entry, key_id_cmp); + +/* Tree of blobs (used for keys and fingerprints) */ +struct revoked_blob { + u_char *blob; + u_int len; + RB_ENTRY(revoked_blob) tree_entry; +}; +static int blob_cmp(struct revoked_blob *a, struct revoked_blob *b); +RB_HEAD(revoked_blob_tree, revoked_blob); +RB_GENERATE_STATIC(revoked_blob_tree, revoked_blob, tree_entry, blob_cmp); + +/* Tracks revoked certs for a single CA */ +struct revoked_certs { + Key *ca_key; + struct revoked_serial_tree revoked_serials; + struct revoked_key_id_tree revoked_key_ids; + TAILQ_ENTRY(revoked_certs) entry; +}; +TAILQ_HEAD(revoked_certs_list, revoked_certs); + +struct ssh_krl { + u_int64_t krl_version; + u_int64_t generated_date; + u_int64_t flags; + char *comment; + struct revoked_blob_tree revoked_keys; + struct revoked_blob_tree revoked_sha1s; + struct revoked_certs_list revoked_certs; +}; + +/* Return equal if a and b overlap */ +static int +serial_cmp(struct revoked_serial *a, struct revoked_serial *b) +{ + if (a->hi >= b->lo && a->lo <= b->hi) + return 0; + return a->lo < b->lo ? -1 : 1; +} + +static int +key_id_cmp(struct revoked_key_id *a, struct revoked_key_id *b) +{ + return strcmp(a->key_id, b->key_id); +} + +static int +blob_cmp(struct revoked_blob *a, struct revoked_blob *b) +{ + int r; + + if (a->len != b->len) { + if ((r = memcmp(a->blob, b->blob, MIN(a->len, b->len))) != 0) + return r; + return a->len > b->len ? 1 : -1; + } else + return memcmp(a->blob, b->blob, a->len); +} + +struct ssh_krl * +ssh_krl_init(void) +{ + struct ssh_krl *krl; + + if ((krl = calloc(1, sizeof(*krl))) == NULL) + return NULL; + RB_INIT(&krl->revoked_keys); + RB_INIT(&krl->revoked_sha1s); + TAILQ_INIT(&krl->revoked_certs); + return krl; +} + +static void +revoked_certs_free(struct revoked_certs *rc) +{ + struct revoked_serial *rs, *trs; + struct revoked_key_id *rki, *trki; + + RB_FOREACH_SAFE(rs, revoked_serial_tree, &rc->revoked_serials, trs) { + RB_REMOVE(revoked_serial_tree, &rc->revoked_serials, rs); + free(rs); + } + RB_FOREACH_SAFE(rki, revoked_key_id_tree, &rc->revoked_key_ids, trki) { + RB_REMOVE(revoked_key_id_tree, &rc->revoked_key_ids, rki); + free(rki->key_id); + free(rki); + } + if (rc->ca_key != NULL) + key_free(rc->ca_key); +} + +void +ssh_krl_free(struct ssh_krl *krl) +{ + struct revoked_blob *rb, *trb; + struct revoked_certs *rc, *trc; + + if (krl == NULL) + return; + + free(krl->comment); + RB_FOREACH_SAFE(rb, revoked_blob_tree, &krl->revoked_keys, trb) { + RB_REMOVE(revoked_blob_tree, &krl->revoked_keys, rb); + free(rb->blob); + free(rb); + } + RB_FOREACH_SAFE(rb, revoked_blob_tree, &krl->revoked_sha1s, trb) { + RB_REMOVE(revoked_blob_tree, &krl->revoked_sha1s, rb); + free(rb->blob); + free(rb); + } + TAILQ_FOREACH_SAFE(rc, &krl->revoked_certs, entry, trc) { + TAILQ_REMOVE(&krl->revoked_certs, rc, entry); + revoked_certs_free(rc); + } +} + +void +ssh_krl_set_version(struct ssh_krl *krl, u_int64_t version) +{ + krl->krl_version = version; +} + +void +ssh_krl_set_comment(struct ssh_krl *krl, const char *comment) +{ + free(krl->comment); + if ((krl->comment = strdup(comment)) == NULL) + fatal("%s: strdup", __func__); +} + +/* + * Find the revoked_certs struct for a CA key. If allow_create is set then + * create a new one in the tree if one did not exist already. + */ +static int +revoked_certs_for_ca_key(struct ssh_krl *krl, const Key *ca_key, + struct revoked_certs **rcp, int allow_create) +{ + struct revoked_certs *rc; + + *rcp = NULL; + TAILQ_FOREACH(rc, &krl->revoked_certs, entry) { + if (key_equal(rc->ca_key, ca_key)) { + *rcp = rc; + return 0; + } + } + if (!allow_create) + return 0; + /* If this CA doesn't exist in the list then add it now */ + if ((rc = calloc(1, sizeof(*rc))) == NULL) + return -1; + if ((rc->ca_key = key_from_private(ca_key)) == NULL) { + free(rc); + return -1; + } + RB_INIT(&rc->revoked_serials); + RB_INIT(&rc->revoked_key_ids); + TAILQ_INSERT_TAIL(&krl->revoked_certs, rc, entry); + debug3("%s: new CA %s", __func__, key_type(ca_key)); + *rcp = rc; + return 0; +} + +static int +insert_serial_range(struct revoked_serial_tree *rt, u_int64_t lo, u_int64_t hi) +{ + struct revoked_serial rs, *ers, *crs, *irs; + + KRL_DBG(("%s: insert %llu:%llu", __func__, lo, hi)); + bzero(&rs, sizeof(rs)); + rs.lo = lo; + rs.hi = hi; + ers = RB_NFIND(revoked_serial_tree, rt, &rs); + if (ers == NULL || serial_cmp(ers, &rs) != 0) { + /* No entry matches. Just insert */ + if ((irs = malloc(sizeof(rs))) == NULL) + return -1; + memcpy(irs, &rs, sizeof(*irs)); + ers = RB_INSERT(revoked_serial_tree, rt, irs); + if (ers != NULL) { + KRL_DBG(("%s: bad: ers != NULL", __func__)); + /* Shouldn't happen */ + free(irs); + return -1; + } + ers = irs; + } else { + KRL_DBG(("%s: overlap found %llu:%llu", __func__, + ers->lo, ers->hi)); + /* + * The inserted entry overlaps an existing one. Grow the + * existing entry. + */ + if (ers->lo > lo) + ers->lo = lo; + if (ers->hi < hi) + ers->hi = hi; + } + /* + * The inserted or revised range might overlap or abut adjacent ones; + * coalesce as necessary. + */ + + /* Check predecessors */ + while ((crs = RB_PREV(revoked_serial_tree, rt, ers)) != NULL) { + KRL_DBG(("%s: pred %llu:%llu", __func__, crs->lo, crs->hi)); + if (ers->lo != 0 && crs->hi < ers->lo - 1) + break; + /* This entry overlaps. */ + if (crs->lo < ers->lo) { + ers->lo = crs->lo; + KRL_DBG(("%s: pred extend %llu:%llu", __func__, + ers->lo, ers->hi)); + } + RB_REMOVE(revoked_serial_tree, rt, crs); + free(crs); + } + /* Check successors */ + while ((crs = RB_NEXT(revoked_serial_tree, rt, ers)) != NULL) { + KRL_DBG(("%s: succ %llu:%llu", __func__, crs->lo, crs->hi)); + if (ers->hi != (u_int64_t)-1 && crs->lo > ers->hi + 1) + break; + /* This entry overlaps. */ + if (crs->hi > ers->hi) { + ers->hi = crs->hi; + KRL_DBG(("%s: succ extend %llu:%llu", __func__, + ers->lo, ers->hi)); + } + RB_REMOVE(revoked_serial_tree, rt, crs); + free(crs); + } + KRL_DBG(("%s: done, final %llu:%llu", __func__, ers->lo, ers->hi)); + return 0; +} + +int +ssh_krl_revoke_cert_by_serial(struct ssh_krl *krl, const Key *ca_key, + u_int64_t serial) +{ + return ssh_krl_revoke_cert_by_serial_range(krl, ca_key, serial, serial); +} + +int +ssh_krl_revoke_cert_by_serial_range(struct ssh_krl *krl, const Key *ca_key, + u_int64_t lo, u_int64_t hi) +{ + struct revoked_certs *rc; + + if (lo > hi || lo == 0) + return -1; + if (revoked_certs_for_ca_key(krl, ca_key, &rc, 1) != 0) + return -1; + return insert_serial_range(&rc->revoked_serials, lo, hi); +} + +int +ssh_krl_revoke_cert_by_key_id(struct ssh_krl *krl, const Key *ca_key, + const char *key_id) +{ + struct revoked_key_id *rki, *erki; + struct revoked_certs *rc; + + if (revoked_certs_for_ca_key(krl, ca_key, &rc, 1) != 0) + return -1; + + debug3("%s: revoke %s", __func__, key_id); + if ((rki = calloc(1, sizeof(*rki))) == NULL || + (rki->key_id = strdup(key_id)) == NULL) { + free(rki); + fatal("%s: strdup", __func__); + } + erki = RB_INSERT(revoked_key_id_tree, &rc->revoked_key_ids, rki); + if (erki != NULL) { + free(rki->key_id); + free(rki); + } + return 0; +} + +/* Convert "key" to a public key blob without any certificate information */ +static int +plain_key_blob(const Key *key, u_char **blob, u_int *blen) +{ + Key *kcopy; + int r; + + if ((kcopy = key_from_private(key)) == NULL) + return -1; + if (key_is_cert(kcopy)) { + if (key_drop_cert(kcopy) != 0) { + error("%s: key_drop_cert", __func__); + key_free(kcopy); + return -1; + } + } + r = key_to_blob(kcopy, blob, blen); + free(kcopy); + return r == 0 ? -1 : 0; +} + +/* Revoke a key blob. Ownership of blob is transferred to the tree */ +static int +revoke_blob(struct revoked_blob_tree *rbt, u_char *blob, u_int len) +{ + struct revoked_blob *rb, *erb; + + if ((rb = calloc(1, sizeof(*rb))) == NULL) + return -1; + rb->blob = blob; + rb->len = len; + erb = RB_INSERT(revoked_blob_tree, rbt, rb); + if (erb != NULL) { + free(rb->blob); + free(rb); + } + return 0; +} + +int +ssh_krl_revoke_key_explicit(struct ssh_krl *krl, const Key *key) +{ + u_char *blob; + u_int len; + + debug3("%s: revoke type %s", __func__, key_type(key)); + if (plain_key_blob(key, &blob, &len) != 0) + return -1; + return revoke_blob(&krl->revoked_keys, blob, len); +} + +int +ssh_krl_revoke_key_sha1(struct ssh_krl *krl, const Key *key) +{ + u_char *blob; + u_int len; + + debug3("%s: revoke type %s by sha1", __func__, key_type(key)); + if ((blob = key_fingerprint_raw(key, SSH_FP_SHA1, &len)) == NULL) + return -1; + return revoke_blob(&krl->revoked_sha1s, blob, len); +} + +int +ssh_krl_revoke_key(struct ssh_krl *krl, const Key *key) +{ + if (!key_is_cert(key)) + return ssh_krl_revoke_key_sha1(krl, key); + + if (key_cert_is_legacy(key) || key->cert->serial == 0) { + return ssh_krl_revoke_cert_by_key_id(krl, + key->cert->signature_key, + key->cert->key_id); + } else { + return ssh_krl_revoke_cert_by_serial(krl, + key->cert->signature_key, + key->cert->serial); + } +} + +/* + * Select a copact next section type to emit in a KRL based on the + * current section type, the run length of contiguous revoked serial + * numbers and the gaps from the last and to the next revoked serial. + * Applies a mostly-accurate bit cost model to select the section type + * that will minimise the size of the resultant KRL. + */ +static int +choose_next_state(int current_state, u_int64_t contig, int final, + u_int64_t last_gap, u_int64_t next_gap, int *force_new_section) +{ + int new_state; + u_int64_t cost, cost_list, cost_range, cost_bitmap, cost_bitmap_restart; + + /* + * Avoid unsigned overflows. + * The limits are high enough to avoid confusing the calculations. + */ + contig = MIN(contig, 1ULL<<31); + last_gap = MIN(last_gap, 1ULL<<31); + next_gap = MIN(next_gap, 1ULL<<31); + + /* + * Calculate the cost to switch from the current state to candidates. + * NB. range sections only ever contain a single range, so their + * switching cost is independent of the current_state. + */ + cost_list = cost_bitmap = cost_bitmap_restart = 0; + cost_range = 8; + switch (current_state) { + case KRL_SECTION_CERT_SERIAL_LIST: + cost_bitmap_restart = cost_bitmap = 8 + 64; + break; + case KRL_SECTION_CERT_SERIAL_BITMAP: + cost_list = 8; + cost_bitmap_restart = 8 + 64; + break; + case KRL_SECTION_CERT_SERIAL_RANGE: + case 0: + cost_bitmap_restart = cost_bitmap = 8 + 64; + cost_list = 8; + } + + /* Estimate base cost in bits of each section type */ + cost_list += 64 * contig + (final ? 0 : 8+64); + cost_range += (2 * 64) + (final ? 0 : 8+64); + cost_bitmap += last_gap + contig + (final ? 0 : MIN(next_gap, 8+64)); + cost_bitmap_restart += contig + (final ? 0 : MIN(next_gap, 8+64)); + + /* Convert to byte costs for actual comparison */ + cost_list = (cost_list + 7) / 8; + cost_bitmap = (cost_bitmap + 7) / 8; + cost_bitmap_restart = (cost_bitmap_restart + 7) / 8; + cost_range = (cost_range + 7) / 8; + + /* Now pick the best choice */ + *force_new_section = 0; + new_state = KRL_SECTION_CERT_SERIAL_BITMAP; + cost = cost_bitmap; + if (cost_range < cost) { + new_state = KRL_SECTION_CERT_SERIAL_RANGE; + cost = cost_range; + } + if (cost_list < cost) { + new_state = KRL_SECTION_CERT_SERIAL_LIST; + cost = cost_list; + } + if (cost_bitmap_restart < cost) { + new_state = KRL_SECTION_CERT_SERIAL_BITMAP; + *force_new_section = 1; + cost = cost_bitmap_restart; + } + debug3("%s: contig %llu last_gap %llu next_gap %llu final %d, costs:" + "list %llu range %llu bitmap %llu new bitmap %llu, " + "selected 0x%02x%s", __func__, (long long unsigned)contig, + (long long unsigned)last_gap, (long long unsigned)next_gap, final, + (long long unsigned)cost_list, (long long unsigned)cost_range, + (long long unsigned)cost_bitmap, + (long long unsigned)cost_bitmap_restart, new_state, + *force_new_section ? " restart" : ""); + return new_state; +} + +/* Generate a KRL_SECTION_CERTIFICATES KRL section */ +static int +revoked_certs_generate(struct revoked_certs *rc, Buffer *buf) +{ + int final, force_new_sect, r = -1; + u_int64_t i, contig, gap, last = 0, bitmap_start = 0; + struct revoked_serial *rs, *nrs; + struct revoked_key_id *rki; + int next_state, state = 0; + Buffer sect; + u_char *kblob = NULL; + u_int klen; + BIGNUM *bitmap = NULL; + + /* Prepare CA scope key blob if we have one supplied */ + if (key_to_blob(rc->ca_key, &kblob, &klen) == 0) + return -1; + + buffer_init(§); + + /* Store the header */ + buffer_put_string(buf, kblob, klen); + buffer_put_string(buf, NULL, 0); /* Reserved */ + + free(kblob); + + /* Store the revoked serials. */ + for (rs = RB_MIN(revoked_serial_tree, &rc->revoked_serials); + rs != NULL; + rs = RB_NEXT(revoked_serial_tree, &rc->revoked_serials, rs)) { + debug3("%s: serial %llu:%llu state 0x%02x", __func__, + (long long unsigned)rs->lo, (long long unsigned)rs->hi, + state); + + /* Check contiguous length and gap to next section (if any) */ + nrs = RB_NEXT(revoked_serial_tree, &rc->revoked_serials, rs); + final = nrs == NULL; + gap = nrs == NULL ? 0 : nrs->lo - rs->hi; + contig = 1 + (rs->hi - rs->lo); + + /* Choose next state based on these */ + next_state = choose_next_state(state, contig, final, + state == 0 ? 0 : rs->lo - last, gap, &force_new_sect); + + /* + * If the current section is a range section or has a different + * type to the next section, then finish it off now. + */ + if (state != 0 && (force_new_sect || next_state != state || + state == KRL_SECTION_CERT_SERIAL_RANGE)) { + debug3("%s: finish state 0x%02x", __func__, state); + switch (state) { + case KRL_SECTION_CERT_SERIAL_LIST: + case KRL_SECTION_CERT_SERIAL_RANGE: + break; + case KRL_SECTION_CERT_SERIAL_BITMAP: + buffer_put_bignum2(§, bitmap); + BN_free(bitmap); + bitmap = NULL; + break; + } + buffer_put_char(buf, state); + buffer_put_string(buf, + buffer_ptr(§), buffer_len(§)); + } + + /* If we are starting a new section then prepare it now */ + if (next_state != state || force_new_sect) { + debug3("%s: start state 0x%02x", __func__, next_state); + state = next_state; + buffer_clear(§); + switch (state) { + case KRL_SECTION_CERT_SERIAL_LIST: + case KRL_SECTION_CERT_SERIAL_RANGE: + break; + case KRL_SECTION_CERT_SERIAL_BITMAP: + if ((bitmap = BN_new()) == NULL) + goto out; + bitmap_start = rs->lo; + buffer_put_int64(§, bitmap_start); + break; + } + } + + /* Perform section-specific processing */ + switch (state) { + case KRL_SECTION_CERT_SERIAL_LIST: + for (i = 0; i < contig; i++) + buffer_put_int64(§, rs->lo + i); + break; + case KRL_SECTION_CERT_SERIAL_RANGE: + buffer_put_int64(§, rs->lo); + buffer_put_int64(§, rs->hi); + break; + case KRL_SECTION_CERT_SERIAL_BITMAP: + if (rs->lo - bitmap_start > INT_MAX) { + error("%s: insane bitmap gap", __func__); + goto out; + } + for (i = 0; i < contig; i++) { + if (BN_set_bit(bitmap, + rs->lo + i - bitmap_start) != 1) + goto out; + } + break; + } + last = rs->hi; + } + /* Flush the remaining section, if any */ + if (state != 0) { + debug3("%s: serial final flush for state 0x%02x", + __func__, state); + switch (state) { + case KRL_SECTION_CERT_SERIAL_LIST: + case KRL_SECTION_CERT_SERIAL_RANGE: + break; + case KRL_SECTION_CERT_SERIAL_BITMAP: + buffer_put_bignum2(§, bitmap); + BN_free(bitmap); + bitmap = NULL; + break; + } + buffer_put_char(buf, state); + buffer_put_string(buf, + buffer_ptr(§), buffer_len(§)); + } + debug3("%s: serial done ", __func__); + + /* Now output a section for any revocations by key ID */ + buffer_clear(§); + RB_FOREACH(rki, revoked_key_id_tree, &rc->revoked_key_ids) { + debug3("%s: key ID %s", __func__, rki->key_id); + buffer_put_cstring(§, rki->key_id); + } + if (buffer_len(§) != 0) { + buffer_put_char(buf, KRL_SECTION_CERT_KEY_ID); + buffer_put_string(buf, buffer_ptr(§), + buffer_len(§)); + } + r = 0; + out: + if (bitmap != NULL) + BN_free(bitmap); + buffer_free(§); + return r; +} + +int +ssh_krl_to_blob(struct ssh_krl *krl, Buffer *buf, const Key **sign_keys, + u_int nsign_keys) +{ + int r = -1; + struct revoked_certs *rc; + struct revoked_blob *rb; + Buffer sect; + u_char *kblob = NULL, *sblob = NULL; + u_int klen, slen, i; + + if (krl->generated_date == 0) + krl->generated_date = time(NULL); + + buffer_init(§); + + /* Store the header */ + buffer_append(buf, KRL_MAGIC, sizeof(KRL_MAGIC) - 1); + buffer_put_int(buf, KRL_FORMAT_VERSION); + buffer_put_int64(buf, krl->krl_version); + buffer_put_int64(buf, krl->generated_date); + buffer_put_int64(buf, krl->flags); + buffer_put_string(buf, NULL, 0); + buffer_put_cstring(buf, krl->comment ? krl->comment : ""); + + /* Store sections for revoked certificates */ + TAILQ_FOREACH(rc, &krl->revoked_certs, entry) { + if (revoked_certs_generate(rc, §) != 0) + goto out; + buffer_put_char(buf, KRL_SECTION_CERTIFICATES); + buffer_put_string(buf, buffer_ptr(§), + buffer_len(§)); + } + + /* Finally, output sections for revocations by public key/hash */ + buffer_clear(§); + RB_FOREACH(rb, revoked_blob_tree, &krl->revoked_keys) { + debug3("%s: key len %u ", __func__, rb->len); + buffer_put_string(§, rb->blob, rb->len); + } + if (buffer_len(§) != 0) { + buffer_put_char(buf, KRL_SECTION_EXPLICIT_KEY); + buffer_put_string(buf, buffer_ptr(§), + buffer_len(§)); + } + buffer_clear(§); + RB_FOREACH(rb, revoked_blob_tree, &krl->revoked_sha1s) { + debug3("%s: hash len %u ", __func__, rb->len); + buffer_put_string(§, rb->blob, rb->len); + } + if (buffer_len(§) != 0) { + buffer_put_char(buf, KRL_SECTION_FINGERPRINT_SHA1); + buffer_put_string(buf, buffer_ptr(§), + buffer_len(§)); + } + + for (i = 0; i < nsign_keys; i++) { + if (key_to_blob(sign_keys[i], &kblob, &klen) == 0) + goto out; + + debug3("%s: signature key len %u", __func__, klen); + buffer_put_char(buf, KRL_SECTION_SIGNATURE); + buffer_put_string(buf, kblob, klen); + + if (key_sign(sign_keys[i], &sblob, &slen, + buffer_ptr(buf), buffer_len(buf)) == -1) + goto out; + debug3("%s: signature sig len %u", __func__, slen); + buffer_put_string(buf, sblob, slen); + } + + r = 0; + out: + free(kblob); + free(sblob); + buffer_free(§); + return r; +} + +static void +format_timestamp(u_int64_t timestamp, char *ts, size_t nts) +{ + time_t t; + struct tm *tm; + + t = timestamp; + tm = localtime(&t); + *ts = '\0'; + strftime(ts, nts, "%Y%m%dT%H%M%S", tm); +} + +static int +parse_revoked_certs(Buffer *buf, struct ssh_krl *krl) +{ + int ret = -1, nbits; + u_char type, *blob; + u_int blen; + Buffer subsect; + u_int64_t serial, serial_lo, serial_hi; + BIGNUM *bitmap = NULL; + char *key_id = NULL; + Key *ca_key = NULL; + + buffer_init(&subsect); + + if ((blob = buffer_get_string_ptr_ret(buf, &blen)) == NULL || + buffer_get_string_ptr_ret(buf, NULL) == NULL) { /* reserved */ + error("%s: buffer error", __func__); + goto out; + } + if ((ca_key = key_from_blob(blob, blen)) == NULL) + goto out; + + while (buffer_len(buf) > 0) { + if (buffer_get_char_ret(&type, buf) != 0 || + (blob = buffer_get_string_ptr_ret(buf, &blen)) == NULL) { + error("%s: buffer error", __func__); + goto out; + } + buffer_clear(&subsect); + buffer_append(&subsect, blob, blen); + debug3("%s: subsection type 0x%02x", __func__, type); + /* buffer_dump(&subsect); */ + + switch (type) { + case KRL_SECTION_CERT_SERIAL_LIST: + while (buffer_len(&subsect) > 0) { + if (buffer_get_int64_ret(&serial, + &subsect) != 0) { + error("%s: buffer error", __func__); + goto out; + } + if (ssh_krl_revoke_cert_by_serial(krl, ca_key, + serial) != 0) { + error("%s: update failed", __func__); + goto out; + } + } + break; + case KRL_SECTION_CERT_SERIAL_RANGE: + if (buffer_get_int64_ret(&serial_lo, &subsect) != 0 || + buffer_get_int64_ret(&serial_hi, &subsect) != 0) { + error("%s: buffer error", __func__); + goto out; + } + if (ssh_krl_revoke_cert_by_serial_range(krl, ca_key, + serial_lo, serial_hi) != 0) { + error("%s: update failed", __func__); + goto out; + } + break; + case KRL_SECTION_CERT_SERIAL_BITMAP: + if ((bitmap = BN_new()) == NULL) { + error("%s: BN_new", __func__); + goto out; + } + if (buffer_get_int64_ret(&serial_lo, &subsect) != 0 || + buffer_get_bignum2_ret(&subsect, bitmap) != 0) { + error("%s: buffer error", __func__); + goto out; + } + if ((nbits = BN_num_bits(bitmap)) < 0) { + error("%s: bitmap bits < 0", __func__); + goto out; + } + for (serial = 0; serial < (u_int)nbits; serial++) { + if (serial > 0 && serial_lo + serial == 0) { + error("%s: bitmap wraps u64", __func__); + goto out; + } + if (!BN_is_bit_set(bitmap, serial)) + continue; + if (ssh_krl_revoke_cert_by_serial(krl, ca_key, + serial_lo + serial) != 0) { + error("%s: update failed", __func__); + goto out; + } + } + BN_free(bitmap); + bitmap = NULL; + break; + case KRL_SECTION_CERT_KEY_ID: + while (buffer_len(&subsect) > 0) { + if ((key_id = buffer_get_cstring_ret(&subsect, + NULL)) == NULL) { + error("%s: buffer error", __func__); + goto out; + } + if (ssh_krl_revoke_cert_by_key_id(krl, ca_key, + key_id) != 0) { + error("%s: update failed", __func__); + goto out; + } + free(key_id); + key_id = NULL; + } + break; + default: + error("Unsupported KRL certificate section %u", type); + goto out; + } + if (buffer_len(&subsect) > 0) { + error("KRL certificate section contains unparsed data"); + goto out; + } + } + + ret = 0; + out: + if (ca_key != NULL) + key_free(ca_key); + if (bitmap != NULL) + BN_free(bitmap); + free(key_id); + buffer_free(&subsect); + return ret; +} + + +/* Attempt to parse a KRL, checking its signature (if any) with sign_ca_keys. */ +int +ssh_krl_from_blob(Buffer *buf, struct ssh_krl **krlp, + const Key **sign_ca_keys, u_int nsign_ca_keys) +{ + Buffer copy, sect; + struct ssh_krl *krl; + char timestamp[64]; + int ret = -1, r, sig_seen; + Key *key = NULL, **ca_used = NULL; + u_char type, *blob, *rdata = NULL; + u_int i, j, sig_off, sects_off, rlen, blen, format_version, nca_used; + + nca_used = 0; + *krlp = NULL; + if (buffer_len(buf) < sizeof(KRL_MAGIC) - 1 || + memcmp(buffer_ptr(buf), KRL_MAGIC, sizeof(KRL_MAGIC) - 1) != 0) { + debug3("%s: not a KRL", __func__); + /* + * Return success but a NULL *krlp here to signal that the + * file might be a simple list of keys. + */ + return 0; + } + + /* Take a copy of the KRL buffer so we can verify its signature later */ + buffer_init(©); + buffer_append(©, buffer_ptr(buf), buffer_len(buf)); + + buffer_init(§); + buffer_consume(©, sizeof(KRL_MAGIC) - 1); + + if ((krl = ssh_krl_init()) == NULL) { + error("%s: alloc failed", __func__); + goto out; + } + + if (buffer_get_int_ret(&format_version, ©) != 0) { + error("%s: KRL truncated", __func__); + goto out; + } + if (format_version != KRL_FORMAT_VERSION) { + error("%s: KRL unsupported format version %u", + __func__, format_version); + goto out; + } + if (buffer_get_int64_ret(&krl->krl_version, ©) != 0 || + buffer_get_int64_ret(&krl->generated_date, ©) != 0 || + buffer_get_int64_ret(&krl->flags, ©) != 0 || + buffer_get_string_ptr_ret(©, NULL) == NULL || /* reserved */ + (krl->comment = buffer_get_cstring_ret(©, NULL)) == NULL) { + error("%s: buffer error", __func__); + goto out; + } + + format_timestamp(krl->generated_date, timestamp, sizeof(timestamp)); + debug("KRL version %llu generated at %s%s%s", + (long long unsigned)krl->krl_version, timestamp, + *krl->comment ? ": " : "", krl->comment); + + /* + * 1st pass: verify signatures, if any. This is done to avoid + * detailed parsing of data whose provenance is unverified. + */ + sig_seen = 0; + sects_off = buffer_len(buf) - buffer_len(©); + while (buffer_len(©) > 0) { + if (buffer_get_char_ret(&type, ©) != 0 || + (blob = buffer_get_string_ptr_ret(©, &blen)) == NULL) { + error("%s: buffer error", __func__); + goto out; + } + debug3("%s: first pass, section 0x%02x", __func__, type); + if (type != KRL_SECTION_SIGNATURE) { + if (sig_seen) { + error("KRL contains non-signature section " + "after signature"); + goto out; + } + /* Not interested for now. */ + continue; + } + sig_seen = 1; + /* First string component is the signing key */ + if ((key = key_from_blob(blob, blen)) == NULL) { + error("%s: invalid signature key", __func__); + goto out; + } + sig_off = buffer_len(buf) - buffer_len(©); + /* Second string component is the signature itself */ + if ((blob = buffer_get_string_ptr_ret(©, &blen)) == NULL) { + error("%s: buffer error", __func__); + goto out; + } + /* Check signature over entire KRL up to this point */ + if (key_verify(key, blob, blen, + buffer_ptr(buf), buffer_len(buf) - sig_off) != 1) { + error("bad signaure on KRL"); + goto out; + } + /* Check if this key has already signed this KRL */ + for (i = 0; i < nca_used; i++) { + if (key_equal(ca_used[i], key)) { + error("KRL signed more than once with " + "the same key"); + goto out; + } + } + /* Record keys used to sign the KRL */ + ca_used = xrealloc(ca_used, nca_used + 1, sizeof(*ca_used)); + ca_used[nca_used++] = key; + key = NULL; + break; + } + + /* + * 2nd pass: parse and load the KRL, skipping the header to the point + * where the section start. + */ + buffer_append(©, (u_char*)buffer_ptr(buf) + sects_off, + buffer_len(buf) - sects_off); + while (buffer_len(©) > 0) { + if (buffer_get_char_ret(&type, ©) != 0 || + (blob = buffer_get_string_ptr_ret(©, &blen)) == NULL) { + error("%s: buffer error", __func__); + goto out; + } + debug3("%s: second pass, section 0x%02x", __func__, type); + buffer_clear(§); + buffer_append(§, blob, blen); + + switch (type) { + case KRL_SECTION_CERTIFICATES: + if ((r = parse_revoked_certs(§, krl)) != 0) + goto out; + break; + case KRL_SECTION_EXPLICIT_KEY: + case KRL_SECTION_FINGERPRINT_SHA1: + while (buffer_len(§) > 0) { + if ((rdata = buffer_get_string_ret(§, + &rlen)) == NULL) { + error("%s: buffer error", __func__); + goto out; + } + if (type == KRL_SECTION_FINGERPRINT_SHA1 && + rlen != 20) { + error("%s: bad SHA1 length", __func__); + goto out; + } + if (revoke_blob( + type == KRL_SECTION_EXPLICIT_KEY ? + &krl->revoked_keys : &krl->revoked_sha1s, + rdata, rlen) != 0) + goto out; + rdata = NULL; /* revoke_blob frees blob */ + } + break; + case KRL_SECTION_SIGNATURE: + /* Handled above, but still need to stay in synch */ + buffer_clear(§); + if ((blob = buffer_get_string_ptr_ret(©, + &blen)) == NULL) { + error("%s: buffer error", __func__); + goto out; + } + break; + default: + error("Unsupported KRL section %u", type); + goto out; + } + if (buffer_len(§) > 0) { + error("KRL section contains unparsed data"); + goto out; + } + } + + /* Check that the key(s) used to sign the KRL weren't revoked */ + sig_seen = 0; + for (i = 0; i < nca_used; i++) { + if (ssh_krl_check_key(krl, ca_used[i]) == 0) + sig_seen = 1; + else { + key_free(ca_used[i]); + ca_used[i] = NULL; + } + } + if (nca_used && !sig_seen) { + error("All keys used to sign KRL were revoked"); + goto out; + } + + /* If we have CA keys, then verify that one was used to sign the KRL */ + if (sig_seen && nsign_ca_keys != 0) { + sig_seen = 0; + for (i = 0; !sig_seen && i < nsign_ca_keys; i++) { + for (j = 0; j < nca_used; j++) { + if (ca_used[j] == NULL) + continue; + if (key_equal(ca_used[j], sign_ca_keys[i])) { + sig_seen = 1; + break; + } + } + } + if (!sig_seen) { + error("KRL not signed with any trusted key"); + goto out; + } + } + + *krlp = krl; + ret = 0; + out: + if (ret != 0) + ssh_krl_free(krl); + for (i = 0; i < nca_used; i++) { + if (ca_used[i] != NULL) + key_free(ca_used[i]); + } + free(ca_used); + free(rdata); + if (key != NULL) + key_free(key); + buffer_free(©); + buffer_free(§); + return ret; +} + +/* Checks whether a given key/cert is revoked. Does not check its CA */ +static int +is_key_revoked(struct ssh_krl *krl, const Key *key) +{ + struct revoked_blob rb, *erb; + struct revoked_serial rs, *ers; + struct revoked_key_id rki, *erki; + struct revoked_certs *rc; + + /* Check explicitly revoked hashes first */ + bzero(&rb, sizeof(rb)); + if ((rb.blob = key_fingerprint_raw(key, SSH_FP_SHA1, &rb.len)) == NULL) + return -1; + erb = RB_FIND(revoked_blob_tree, &krl->revoked_sha1s, &rb); + free(rb.blob); + if (erb != NULL) { + debug("%s: revoked by key SHA1", __func__); + return -1; + } + + /* Next, explicit keys */ + bzero(&rb, sizeof(rb)); + if (plain_key_blob(key, &rb.blob, &rb.len) != 0) + return -1; + erb = RB_FIND(revoked_blob_tree, &krl->revoked_keys, &rb); + free(rb.blob); + if (erb != NULL) { + debug("%s: revoked by explicit key", __func__); + return -1; + } + + if (!key_is_cert(key)) + return 0; + + /* Check cert revocation */ + if (revoked_certs_for_ca_key(krl, key->cert->signature_key, + &rc, 0) != 0) + return -1; + if (rc == NULL) + return 0; /* No entry for this CA */ + + /* Check revocation by cert key ID */ + bzero(&rki, sizeof(rki)); + rki.key_id = key->cert->key_id; + erki = RB_FIND(revoked_key_id_tree, &rc->revoked_key_ids, &rki); + if (erki != NULL) { + debug("%s: revoked by key ID", __func__); + return -1; + } + + /* + * Legacy cert formats lack serial numbers. Zero serials numbers + * are ignored (it's the default when the CA doesn't specify one). + */ + if (key_cert_is_legacy(key) || key->cert->serial == 0) + return 0; + + bzero(&rs, sizeof(rs)); + rs.lo = rs.hi = key->cert->serial; + ers = RB_FIND(revoked_serial_tree, &rc->revoked_serials, &rs); + if (ers != NULL) { + KRL_DBG(("%s: %llu matched %llu:%llu", __func__, + key->cert->serial, ers->lo, ers->hi)); + debug("%s: revoked by serial", __func__); + return -1; + } + KRL_DBG(("%s: %llu no match", __func__, key->cert->serial)); + + return 0; +} + +int +ssh_krl_check_key(struct ssh_krl *krl, const Key *key) +{ + int r; + + debug2("%s: checking key", __func__); + if ((r = is_key_revoked(krl, key)) != 0) + return r; + if (key_is_cert(key)) { + debug2("%s: checking CA key", __func__); + if ((r = is_key_revoked(krl, key->cert->signature_key)) != 0) + return r; + } + debug3("%s: key okay", __func__); + return 0; +} + +/* Returns 0 on success, -1 on error or key revoked, -2 if path is not a KRL */ +int +ssh_krl_file_contains_key(const char *path, const Key *key) +{ + Buffer krlbuf; + struct ssh_krl *krl; + int revoked, fd; + + if (path == NULL) + return 0; + + if ((fd = open(path, O_RDONLY)) == -1) { + error("open %s: %s", path, strerror(errno)); + error("Revoked keys file not accessible - refusing public key " + "authentication"); + return -1; + } + buffer_init(&krlbuf); + if (!key_load_file(fd, path, &krlbuf)) { + close(fd); + buffer_free(&krlbuf); + error("Revoked keys file not readable - refusing public key " + "authentication"); + return -1; + } + close(fd); + if (ssh_krl_from_blob(&krlbuf, &krl, NULL, 0) != 0) { + buffer_free(&krlbuf); + error("Invalid KRL, refusing public key " + "authentication"); + return -1; + } + buffer_free(&krlbuf); + if (krl == NULL) { + debug3("%s: %s is not a KRL file", __func__, path); + return -2; + } + debug2("%s: checking KRL %s", __func__, path); + revoked = ssh_krl_check_key(krl, key) != 0; + ssh_krl_free(krl); + return revoked ? -1 : 0; +} @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2012 Damien Miller <djm@mindrot.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* $OpenBSD: krl.h,v 1.2 2013/01/18 00:24:58 djm Exp $ */ + +#ifndef _KRL_H +#define _KRL_H + +/* Functions to manage key revocation lists */ + +#define KRL_MAGIC "SSHKRL\n\0" +#define KRL_FORMAT_VERSION 1 + +/* KRL section types */ +#define KRL_SECTION_CERTIFICATES 1 +#define KRL_SECTION_EXPLICIT_KEY 2 +#define KRL_SECTION_FINGERPRINT_SHA1 3 +#define KRL_SECTION_SIGNATURE 4 + +/* KRL_SECTION_CERTIFICATES subsection types */ +#define KRL_SECTION_CERT_SERIAL_LIST 0x20 +#define KRL_SECTION_CERT_SERIAL_RANGE 0x21 +#define KRL_SECTION_CERT_SERIAL_BITMAP 0x22 +#define KRL_SECTION_CERT_KEY_ID 0x23 + +struct ssh_krl; + +struct ssh_krl *ssh_krl_init(void); +void ssh_krl_free(struct ssh_krl *krl); +void ssh_krl_set_version(struct ssh_krl *krl, u_int64_t version); +void ssh_krl_set_sign_key(struct ssh_krl *krl, const Key *sign_key); +void ssh_krl_set_comment(struct ssh_krl *krl, const char *comment); +int ssh_krl_revoke_cert_by_serial(struct ssh_krl *krl, const Key *ca_key, + u_int64_t serial); +int ssh_krl_revoke_cert_by_serial_range(struct ssh_krl *krl, const Key *ca_key, + u_int64_t lo, u_int64_t hi); +int ssh_krl_revoke_cert_by_key_id(struct ssh_krl *krl, const Key *ca_key, + const char *key_id); +int ssh_krl_revoke_key_explicit(struct ssh_krl *krl, const Key *key); +int ssh_krl_revoke_key_sha1(struct ssh_krl *krl, const Key *key); +int ssh_krl_revoke_key(struct ssh_krl *krl, const Key *key); +int ssh_krl_to_blob(struct ssh_krl *krl, Buffer *buf, const Key **sign_keys, + u_int nsign_keys); +int ssh_krl_from_blob(Buffer *buf, struct ssh_krl **krlp, + const Key **sign_ca_keys, u_int nsign_ca_keys); +int ssh_krl_check_key(struct ssh_krl *krl, const Key *key); +int ssh_krl_file_contains_key(const char *path, const Key *key); + +#endif /* _KRL_H */ + @@ -1,4 +1,4 @@ -/* $OpenBSD: log.c,v 1.42 2011/06/17 21:44:30 djm Exp $ */ +/* $OpenBSD: log.c,v 1.45 2013/05/16 09:08:41 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -38,6 +38,7 @@ #include <sys/types.h> +#include <fcntl.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> @@ -45,7 +46,7 @@ #include <syslog.h> #include <unistd.h> #include <errno.h> -#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) +#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) && !defined(BROKEN_STRNVIS) # include <vis.h> #endif @@ -54,6 +55,7 @@ static LogLevel log_level = SYSLOG_LEVEL_INFO; static int log_on_stderr = 1; +static int log_stderr_fd = STDERR_FILENO; static int log_facility = LOG_AUTH; static char *argv0; static log_handler_fn *log_handler; @@ -329,6 +331,35 @@ log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr) #endif } +void +log_change_level(LogLevel new_log_level) +{ + /* no-op if log_init has not been called */ + if (argv0 == NULL) + return; + log_init(argv0, new_log_level, log_facility, log_on_stderr); +} + +int +log_is_on_stderr(void) +{ + return log_on_stderr; +} + +/* redirect what would usually get written to stderr to specified file */ +void +log_redirect_stderr_to(const char *logfile) +{ + int fd; + + if ((fd = open(logfile, O_WRONLY|O_CREAT|O_APPEND, 0600)) == -1) { + fprintf(stderr, "Couldn't open logfile %s: %s\n", logfile, + strerror(errno)); + exit(1); + } + log_stderr_fd = fd; +} + #define MSGBUFSIZ 1024 void @@ -414,7 +445,7 @@ do_log(LogLevel level, const char *fmt, va_list args) log_handler = tmp_handler; } else if (log_on_stderr) { snprintf(msgbuf, sizeof msgbuf, "%s\r\n", fmtbuf); - write(STDERR_FILENO, msgbuf, strlen(msgbuf)); + (void)write(log_stderr_fd, msgbuf, strlen(msgbuf)); } else { #if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT) openlog_r(argv0 ? argv0 : __progname, LOG_PID, log_facility, &sdata); @@ -1,4 +1,4 @@ -/* $OpenBSD: log.h,v 1.18 2011/06/17 21:44:30 djm Exp $ */ +/* $OpenBSD: log.h,v 1.20 2013/04/07 02:10:33 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -49,6 +49,9 @@ typedef enum { typedef void (log_handler_fn)(LogLevel, const char *, void *); void log_init(char *, LogLevel, SyslogFacility, int); +void log_change_level(LogLevel); +int log_is_on_stderr(void); +void log_redirect_stderr_to(const char *); SyslogFacility log_facility_number(char *); const char * log_facility_name(SyslogFacility); @@ -180,10 +180,6 @@ # include <util.h> #endif -#ifdef HAVE_LIBUTIL_H -# include <libutil.h> -#endif - /** ** prototypes for helper functions in this file **/ @@ -314,9 +310,13 @@ login_get_lastlog(struct logininfo *li, const uid_t uid) fatal("%s: Cannot find account for uid %ld", __func__, (long)uid); - /* No MIN_SIZEOF here - we absolutely *must not* truncate the - * username (XXX - so check for trunc!) */ - strlcpy(li->username, pw->pw_name, sizeof(li->username)); + if (strlcpy(li->username, pw->pw_name, sizeof(li->username)) >= + sizeof(li->username)) { + error("%s: username too long (%lu > max %lu)", __func__, + (unsigned long)strlen(pw->pw_name), + (unsigned long)sizeof(li->username) - 1); + return NULL; + } if (getlast_entry(li)) return (li); @@ -324,7 +324,6 @@ login_get_lastlog(struct logininfo *li, const uid_t uid) return (NULL); } - /* * login_alloc_entry(int, char*, char*, char*) - Allocate and initialise * a logininfo structure @@ -351,7 +350,7 @@ logininfo *login_alloc_entry(pid_t pid, const char *username, void login_free_entry(struct logininfo *li) { - xfree(li); + free(li); } @@ -1,4 +1,4 @@ -/* $OpenBSD: mac.c,v 1.17 2011/12/02 00:43:57 djm Exp $ */ +/* $OpenBSD: mac.c,v 1.26 2014/01/04 17:50:55 tedu Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * @@ -48,62 +48,101 @@ #define SSH_EVP 1 /* OpenSSL EVP-based MAC */ #define SSH_UMAC 2 /* UMAC (not integrated with OpenSSL) */ +#define SSH_UMAC128 3 -struct { +struct macalg { char *name; int type; const EVP_MD * (*mdfunc)(void); int truncatebits; /* truncate digest if != 0 */ int key_len; /* just for UMAC */ int len; /* just for UMAC */ -} macs[] = { - { "hmac-sha1", SSH_EVP, EVP_sha1, 0, -1, -1 }, - { "hmac-sha1-96", SSH_EVP, EVP_sha1, 96, -1, -1 }, + int etm; /* Encrypt-then-MAC */ +}; + +static const struct macalg macs[] = { + /* Encrypt-and-MAC (encrypt-and-authenticate) variants */ + { "hmac-sha1", SSH_EVP, EVP_sha1, 0, 0, 0, 0 }, + { "hmac-sha1-96", SSH_EVP, EVP_sha1, 96, 0, 0, 0 }, #ifdef HAVE_EVP_SHA256 - { "hmac-sha2-256", SSH_EVP, EVP_sha256, 0, -1, -1 }, - { "hmac-sha2-256-96", SSH_EVP, EVP_sha256, 96, -1, -1 }, - { "hmac-sha2-512", SSH_EVP, EVP_sha512, 0, -1, -1 }, - { "hmac-sha2-512-96", SSH_EVP, EVP_sha512, 96, -1, -1 }, + { "hmac-sha2-256", SSH_EVP, EVP_sha256, 0, 0, 0, 0 }, + { "hmac-sha2-512", SSH_EVP, EVP_sha512, 0, 0, 0, 0 }, #endif - { "hmac-md5", SSH_EVP, EVP_md5, 0, -1, -1 }, - { "hmac-md5-96", SSH_EVP, EVP_md5, 96, -1, -1 }, - { "hmac-ripemd160", SSH_EVP, EVP_ripemd160, 0, -1, -1 }, - { "hmac-ripemd160@openssh.com", SSH_EVP, EVP_ripemd160, 0, -1, -1 }, - { "umac-64@openssh.com", SSH_UMAC, NULL, 0, 128, 64 }, - { NULL, 0, NULL, 0, -1, -1 } + { "hmac-md5", SSH_EVP, EVP_md5, 0, 0, 0, 0 }, + { "hmac-md5-96", SSH_EVP, EVP_md5, 96, 0, 0, 0 }, + { "hmac-ripemd160", SSH_EVP, EVP_ripemd160, 0, 0, 0, 0 }, + { "hmac-ripemd160@openssh.com", SSH_EVP, EVP_ripemd160, 0, 0, 0, 0 }, + { "umac-64@openssh.com", SSH_UMAC, NULL, 0, 128, 64, 0 }, + { "umac-128@openssh.com", SSH_UMAC128, NULL, 0, 128, 128, 0 }, + + /* Encrypt-then-MAC variants */ + { "hmac-sha1-etm@openssh.com", SSH_EVP, EVP_sha1, 0, 0, 0, 1 }, + { "hmac-sha1-96-etm@openssh.com", SSH_EVP, EVP_sha1, 96, 0, 0, 1 }, +#ifdef HAVE_EVP_SHA256 + { "hmac-sha2-256-etm@openssh.com", SSH_EVP, EVP_sha256, 0, 0, 0, 1 }, + { "hmac-sha2-512-etm@openssh.com", SSH_EVP, EVP_sha512, 0, 0, 0, 1 }, +#endif + { "hmac-md5-etm@openssh.com", SSH_EVP, EVP_md5, 0, 0, 0, 1 }, + { "hmac-md5-96-etm@openssh.com", SSH_EVP, EVP_md5, 96, 0, 0, 1 }, + { "hmac-ripemd160-etm@openssh.com", SSH_EVP, EVP_ripemd160, 0, 0, 0, 1 }, + { "umac-64-etm@openssh.com", SSH_UMAC, NULL, 0, 128, 64, 1 }, + { "umac-128-etm@openssh.com", SSH_UMAC128, NULL, 0, 128, 128, 1 }, + + { NULL, 0, NULL, 0, 0, 0, 0 } }; +/* Returns a list of supported MACs separated by the specified char. */ +char * +mac_alg_list(char sep) +{ + char *ret = NULL; + size_t nlen, rlen = 0; + const struct macalg *m; + + for (m = macs; m->name != NULL; m++) { + if (ret != NULL) + ret[rlen++] = sep; + nlen = strlen(m->name); + ret = xrealloc(ret, 1, rlen + nlen + 2); + memcpy(ret + rlen, m->name, nlen + 1); + rlen += nlen; + } + return ret; +} + static void -mac_setup_by_id(Mac *mac, int which) +mac_setup_by_alg(Mac *mac, const struct macalg *macalg) { int evp_len; - mac->type = macs[which].type; + + mac->type = macalg->type; if (mac->type == SSH_EVP) { - mac->evp_md = (*macs[which].mdfunc)(); + mac->evp_md = macalg->mdfunc(); if ((evp_len = EVP_MD_size(mac->evp_md)) <= 0) fatal("mac %s len %d", mac->name, evp_len); mac->key_len = mac->mac_len = (u_int)evp_len; } else { - mac->mac_len = macs[which].len / 8; - mac->key_len = macs[which].key_len / 8; + mac->mac_len = macalg->len / 8; + mac->key_len = macalg->key_len / 8; mac->umac_ctx = NULL; } - if (macs[which].truncatebits != 0) - mac->mac_len = macs[which].truncatebits / 8; + if (macalg->truncatebits != 0) + mac->mac_len = macalg->truncatebits / 8; + mac->etm = macalg->etm; } int mac_setup(Mac *mac, char *name) { - int i; - - for (i = 0; macs[i].name; i++) { - if (strcmp(name, macs[i].name) == 0) { - if (mac != NULL) - mac_setup_by_id(mac, i); - debug2("mac_setup: found %s", name); - return (0); - } + const struct macalg *m; + + for (m = macs; m->name != NULL; m++) { + if (strcmp(name, m->name) != 0) + continue; + if (mac != NULL) + mac_setup_by_alg(mac, m); + debug2("mac_setup: found %s", name); + return (0); } debug2("mac_setup: unknown %s", name); return (-1); @@ -124,6 +163,9 @@ mac_init(Mac *mac) case SSH_UMAC: mac->umac_ctx = umac_new(mac->key); return 0; + case SSH_UMAC128: + mac->umac_ctx = umac128_new(mac->key); + return 0; default: return -1; } @@ -132,12 +174,15 @@ mac_init(Mac *mac) u_char * mac_compute(Mac *mac, u_int32_t seqno, u_char *data, int datalen) { - static u_char m[EVP_MAX_MD_SIZE]; + static union { + u_char m[EVP_MAX_MD_SIZE]; + u_int64_t for_align; + } u; u_char b[4], nonce[8]; - if (mac->mac_len > sizeof(m)) - fatal("mac_compute: mac too long %u %lu", - mac->mac_len, (u_long)sizeof(m)); + if (mac->mac_len > sizeof(u)) + fatal("mac_compute: mac too long %u %zu", + mac->mac_len, sizeof(u)); switch (mac->type) { case SSH_EVP: @@ -146,17 +191,22 @@ mac_compute(Mac *mac, u_int32_t seqno, u_char *data, int datalen) HMAC_Init(&mac->evp_ctx, NULL, 0, NULL); HMAC_Update(&mac->evp_ctx, b, sizeof(b)); HMAC_Update(&mac->evp_ctx, data, datalen); - HMAC_Final(&mac->evp_ctx, m, NULL); + HMAC_Final(&mac->evp_ctx, u.m, NULL); break; case SSH_UMAC: put_u64(nonce, seqno); umac_update(mac->umac_ctx, data, datalen); - umac_final(mac->umac_ctx, m, nonce); + umac_final(mac->umac_ctx, u.m, nonce); + break; + case SSH_UMAC128: + put_u64(nonce, seqno); + umac128_update(mac->umac_ctx, data, datalen); + umac128_final(mac->umac_ctx, u.m, nonce); break; default: fatal("mac_compute: unknown MAC type"); } - return (m); + return (u.m); } void @@ -165,6 +215,9 @@ mac_clear(Mac *mac) if (mac->type == SSH_UMAC) { if (mac->umac_ctx != NULL) umac_delete(mac->umac_ctx); + } else if (mac->type == SSH_UMAC128) { + if (mac->umac_ctx != NULL) + umac128_delete(mac->umac_ctx); } else if (mac->evp_md != NULL) HMAC_cleanup(&mac->evp_ctx); mac->evp_md = NULL; @@ -185,13 +238,13 @@ mac_valid(const char *names) (p = strsep(&cp, MAC_SEP))) { if (mac_setup(NULL, p) < 0) { debug("bad mac %s [%s]", p, names); - xfree(maclist); + free(maclist); return (0); } else { debug3("mac ok: %s [%s]", p, names); } } debug3("macs ok: [%s]", names); - xfree(maclist); + free(maclist); return (1); } @@ -1,4 +1,4 @@ -/* $OpenBSD: mac.h,v 1.6 2007/06/07 19:37:34 pvalchev Exp $ */ +/* $OpenBSD: mac.h,v 1.8 2013/11/07 11:58:27 dtucker Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * @@ -24,6 +24,7 @@ */ int mac_valid(const char *); +char *mac_alg_list(char); int mac_setup(Mac *, char *); int mac_init(Mac *); u_char *mac_compute(Mac *, u_int32_t, u_char *, int); @@ -1,4 +1,4 @@ -/* $OpenBSD: match.c,v 1.27 2008/06/10 23:06:19 djm Exp $ */ +/* $OpenBSD: match.c,v 1.29 2013/11/20 20:54:10 deraadt Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -40,6 +40,7 @@ #include <sys/types.h> #include <ctype.h> +#include <stdlib.h> #include <string.h> #include "xmalloc.h" @@ -140,8 +141,8 @@ match_pattern_list(const char *string, const char *pattern, u_int len, for (subi = 0; i < len && subi < sizeof(sub) - 1 && pattern[i] != ','; subi++, i++) - sub[subi] = dolower && isupper(pattern[i]) ? - (char)tolower(pattern[i]) : pattern[i]; + sub[subi] = dolower && isupper((u_char)pattern[i]) ? + tolower((u_char)pattern[i]) : pattern[i]; /* If subpattern too long, return failure (no match). */ if (subi >= sizeof(sub) - 1) return 0; @@ -226,14 +227,14 @@ match_user(const char *user, const char *host, const char *ipaddr, if ((ret = match_pattern(user, pat)) == 1) ret = match_host_and_ip(host, ipaddr, p); - xfree(pat); + free(pat); return ret; } /* * Returns first item from client-list that is also supported by server-list, - * caller must xfree() returned string. + * caller must free the returned string. */ #define MAX_PROP 40 #define SEP "," @@ -264,15 +265,15 @@ match_list(const char *client, const char *server, u_int *next) if (next != NULL) *next = (cp == NULL) ? strlen(c) : (u_int)(cp - c); - xfree(c); - xfree(s); + free(c); + free(s); return ret; } } } if (next != NULL) *next = strlen(c); - xfree(c); - xfree(s); + free(c); + free(s); return NULL; } @@ -1,4 +1,4 @@ -/* $OpenBSD: misc.c,v 1.86 2011/09/05 05:59:08 djm Exp $ */ +/* $OpenBSD: misc.c,v 1.92 2013/10/14 23:28:23 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * Copyright (c) 2005,2006 Damien Miller. All rights reserved. @@ -43,6 +43,7 @@ #include <netinet/ip.h> #include <netinet/tcp.h> +#include <ctype.h> #include <errno.h> #include <fcntl.h> #include <netdb.h> @@ -127,7 +128,7 @@ unset_nonblock(int fd) const char * ssh_gai_strerror(int gaierr) { - if (gaierr == EAI_SYSTEM) + if (gaierr == EAI_SYSTEM && errno != 0) return strerror(errno); return gai_strerror(gaierr); } @@ -206,16 +207,18 @@ pwcopy(struct passwd *pw) copy->pw_name = xstrdup(pw->pw_name); copy->pw_passwd = xstrdup(pw->pw_passwd); +#ifdef HAVE_STRUCT_PASSWD_PW_GECOS copy->pw_gecos = xstrdup(pw->pw_gecos); +#endif copy->pw_uid = pw->pw_uid; copy->pw_gid = pw->pw_gid; -#ifdef HAVE_PW_EXPIRE_IN_PASSWD +#ifdef HAVE_STRUCT_PASSWD_PW_EXPIRE copy->pw_expire = pw->pw_expire; #endif -#ifdef HAVE_PW_CHANGE_IN_PASSWD +#ifdef HAVE_STRUCT_PASSWD_PW_CHANGE copy->pw_change = pw->pw_change; #endif -#ifdef HAVE_PW_CLASS_IN_PASSWD +#ifdef HAVE_STRUCT_PASSWD_PW_CLASS copy->pw_class = xstrdup(pw->pw_class); #endif copy->pw_dir = xstrdup(pw->pw_dir); @@ -251,13 +254,13 @@ a2tun(const char *s, int *remote) *remote = SSH_TUNID_ANY; sp = xstrdup(s); if ((ep = strchr(sp, ':')) == NULL) { - xfree(sp); + free(sp); return (a2tun(s, NULL)); } ep[0] = '\0'; ep++; *remote = a2tun(ep, NULL); tun = a2tun(sp, NULL); - xfree(sp); + free(sp); return (*remote == SSH_TUNID_ERR ? *remote : tun); } @@ -490,7 +493,7 @@ replacearg(arglist *args, u_int which, char *fmt, ...) if (which >= args->num) fatal("replacearg: tried to replace invalid arg %d >= %d", which, args->num); - xfree(args->list[which]); + free(args->list[which]); args->list[which] = cp; } @@ -501,8 +504,8 @@ freeargs(arglist *args) if (args->list != NULL) { for (i = 0; i < args->num; i++) - xfree(args->list[i]); - xfree(args->list); + free(args->list[i]); + free(args->list); args->nalloc = args->num = 0; args->list = NULL; } @@ -515,8 +518,8 @@ freeargs(arglist *args) char * tilde_expand_filename(const char *filename, uid_t uid) { - const char *path; - char user[128], ret[MAXPATHLEN]; + const char *path, *sep; + char user[128], *ret; struct passwd *pw; u_int len, slash; @@ -536,22 +539,21 @@ tilde_expand_filename(const char *filename, uid_t uid) } else if ((pw = getpwuid(uid)) == NULL) /* ~/path */ fatal("tilde_expand_filename: No such uid %ld", (long)uid); - if (strlcpy(ret, pw->pw_dir, sizeof(ret)) >= sizeof(ret)) - fatal("tilde_expand_filename: Path too long"); - /* Make sure directory has a trailing '/' */ len = strlen(pw->pw_dir); - if ((len == 0 || pw->pw_dir[len - 1] != '/') && - strlcat(ret, "/", sizeof(ret)) >= sizeof(ret)) - fatal("tilde_expand_filename: Path too long"); + if (len == 0 || pw->pw_dir[len - 1] != '/') + sep = "/"; + else + sep = ""; /* Skip leading '/' from specified path */ if (path != NULL) filename = path + 1; - if (strlcat(ret, filename, sizeof(ret)) >= sizeof(ret)) + + if (xasprintf(&ret, "%s%s%s", pw->pw_dir, sep, filename) >= MAXPATHLEN) fatal("tilde_expand_filename: Path too long"); - return (xstrdup(ret)); + return (ret); } /* @@ -853,6 +855,24 @@ ms_to_timeval(struct timeval *tv, int ms) tv->tv_usec = (ms % 1000) * 1000; } +time_t +monotime(void) +{ +#if defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) + struct timespec ts; + static int gettime_failed = 0; + + if (!gettime_failed) { + if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) + return (ts.tv_sec); + debug3("clock_gettime: %s", strerror(errno)); + gettime_failed = 1; + } +#endif + + return time(NULL); +} + void bandwidth_limit_init(struct bwlimit *bw, u_int64_t kbps, size_t buflen) { @@ -998,6 +1018,13 @@ iptos2str(int iptos) snprintf(iptos_str, sizeof iptos_str, "0x%02x", iptos); return iptos_str; } + +void +lowercase(char *s) +{ + for (; *s; s++) + *s = tolower((u_char)*s); +} void sock_set_v6only(int s) { @@ -1,4 +1,4 @@ -/* $OpenBSD: misc.h,v 1.48 2011/03/29 18:54:17 stevesk Exp $ */ +/* $OpenBSD: misc.h,v 1.50 2013/10/14 23:28:23 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -35,6 +35,9 @@ char *tohex(const void *, size_t); void sanitise_stdfd(void); void ms_subtract_diff(struct timeval *, int *); void ms_to_timeval(struct timeval *, int); +time_t monotime(void); +void lowercase(char *s); + void sock_set_v6only(int); struct passwd *pwcopy(struct passwd *); @@ -1,181 +1,262 @@ -# $OpenBSD: moduli,v 1.6 2011/11/04 00:09:39 dtucker Exp $ +# $OpenBSD: moduli,v 1.8 2012/08/29 05:06:54 dtucker Exp $ # Time Type Tests Tries Size Generator Modulus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@@ -1,4 +1,4 @@ -.\" $OpenBSD: moduli.5,v 1.15 2010/10/14 20:41:28 jmc Exp $ +.\" $OpenBSD: moduli.5,v 1.17 2012/09/26 17:34:38 jmc Exp $ .\" .\" Copyright (c) 2008 Damien Miller <djm@mindrot.org> .\" @@ -13,7 +13,7 @@ .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -.Dd $Mdocdate: October 14 2010 $ +.Dd $Mdocdate: September 26 2012 $ .Dt MODULI 5 .Os .Sh NAME @@ -61,7 +61,7 @@ Unknown, not tested. .It 2 "Safe" prime; (p-1)/2 is also prime. .It 4 -Sophie Germain; (p+1)*2 is also prime. +Sophie Germain; 2p+1 is also prime. .El .Pp Moduli candidates initially produced by @@ -115,8 +115,13 @@ that best meets the size requirement. .Sh SEE ALSO .Xr ssh-keygen 1 , .Xr sshd 8 +.Sh STANDARDS .Rs +.%A M. Friedl +.%A N. Provos +.%A W. Simpson +.%D March 2006 .%R RFC 4419 -.%T "Diffie-Hellman Group Exchange for the Secure Shell (SSH) Transport Layer Protocol" +.%T Diffie-Hellman Group Exchange for the Secure Shell (SSH) Transport Layer Protocol .%D 2006 .Re @@ -1,4 +1,4 @@ -/* $OpenBSD: moduli.c,v 1.25 2011/10/19 00:06:10 djm Exp $ */ +/* $OpenBSD: moduli.c,v 1.28 2013/10/24 00:49:49 dtucker Exp $ */ /* * Copyright 1994 Phil Karn <karn@qualcomm.com> * Copyright 1996-1998, 2003 William Allen Simpson <wsimpson@greendragon.com> @@ -56,6 +56,7 @@ #include "xmalloc.h" #include "dh.h" #include "log.h" +#include "misc.h" #include "openbsd-compat/openssl-compat.h" @@ -140,7 +141,8 @@ static u_int32_t largebits, largememory; /* megabytes */ static BIGNUM *largebase; int gen_candidates(FILE *, u_int32_t, u_int32_t, BIGNUM *); -int prime_test(FILE *, FILE *, u_int32_t, u_int32_t, char *); +int prime_test(FILE *, FILE *, u_int32_t, u_int32_t, char *, unsigned long, + unsigned long); /* * print moduli out in consistent form, @@ -432,9 +434,9 @@ gen_candidates(FILE *out, u_int32_t memory, u_int32_t power, BIGNUM *start) time(&time_stop); - xfree(LargeSieve); - xfree(SmallSieve); - xfree(TinySieve); + free(LargeSieve); + free(SmallSieve); + free(TinySieve); logit("%.24s Found %u candidates", ctime(&time_stop), r); @@ -487,6 +489,79 @@ read_checkpoint(char *cpfile) return lineno; } +static unsigned long +count_lines(FILE *f) +{ + unsigned long count = 0; + char lp[QLINESIZE + 1]; + + if (fseek(f, 0, SEEK_SET) != 0) { + debug("input file is not seekable"); + return ULONG_MAX; + } + while (fgets(lp, QLINESIZE + 1, f) != NULL) + count++; + rewind(f); + debug("input file has %lu lines", count); + return count; +} + +static char * +fmt_time(time_t seconds) +{ + int day, hr, min; + static char buf[128]; + + min = (seconds / 60) % 60; + hr = (seconds / 60 / 60) % 24; + day = seconds / 60 / 60 / 24; + if (day > 0) + snprintf(buf, sizeof buf, "%dd %d:%02d", day, hr, min); + else + snprintf(buf, sizeof buf, "%d:%02d", hr, min); + return buf; +} + +static void +print_progress(unsigned long start_lineno, unsigned long current_lineno, + unsigned long end_lineno) +{ + static time_t time_start, time_prev; + time_t time_now, elapsed; + unsigned long num_to_process, processed, remaining, percent, eta; + double time_per_line; + char *eta_str; + + time_now = monotime(); + if (time_start == 0) { + time_start = time_prev = time_now; + return; + } + /* print progress after 1m then once per 5m */ + if (time_now - time_prev < 5 * 60) + return; + time_prev = time_now; + elapsed = time_now - time_start; + processed = current_lineno - start_lineno; + remaining = end_lineno - current_lineno; + num_to_process = end_lineno - start_lineno; + time_per_line = (double)elapsed / processed; + /* if we don't know how many we're processing just report count+time */ + time(&time_now); + if (end_lineno == ULONG_MAX) { + logit("%.24s processed %lu in %s", ctime(&time_now), + processed, fmt_time(elapsed)); + return; + } + percent = 100 * processed / num_to_process; + eta = time_per_line * remaining; + eta_str = xstrdup(fmt_time(eta)); + logit("%.24s processed %lu of %lu (%lu%%) in %s, ETA %s", + ctime(&time_now), processed, num_to_process, percent, + fmt_time(elapsed), eta_str); + free(eta_str); +} + /* * perform a Miller-Rabin primality test * on the list of candidates @@ -495,14 +570,14 @@ read_checkpoint(char *cpfile) */ int prime_test(FILE *in, FILE *out, u_int32_t trials, u_int32_t generator_wanted, - char *checkpoint_file) + char *checkpoint_file, unsigned long start_lineno, unsigned long num_lines) { BIGNUM *q, *p, *a; BN_CTX *ctx; char *cp, *lp; u_int32_t count_in = 0, count_out = 0, count_possible = 0; u_int32_t generator_known, in_tests, in_tries, in_type, in_size; - unsigned long last_processed = 0; + unsigned long last_processed = 0, end_lineno; time_t time_start, time_stop; int res; @@ -511,6 +586,11 @@ prime_test(FILE *in, FILE *out, u_int32_t trials, u_int32_t generator_wanted, return (-1); } + if (num_lines == 0) + end_lineno = count_lines(in); + else + end_lineno = start_lineno + num_lines; + time(&time_start); if ((p = BN_new()) == NULL) @@ -525,19 +605,25 @@ prime_test(FILE *in, FILE *out, u_int32_t trials, u_int32_t generator_wanted, if (checkpoint_file != NULL) last_processed = read_checkpoint(checkpoint_file); + last_processed = start_lineno = MAX(last_processed, start_lineno); + if (end_lineno == ULONG_MAX) + debug("process from line %lu from pipe", last_processed); + else + debug("process from line %lu to line %lu", last_processed, + end_lineno); res = 0; lp = xmalloc(QLINESIZE + 1); - while (fgets(lp, QLINESIZE + 1, in) != NULL) { + while (fgets(lp, QLINESIZE + 1, in) != NULL && count_in < end_lineno) { count_in++; - if (checkpoint_file != NULL) { - if (count_in <= last_processed) { - debug3("skipping line %u, before checkpoint", - count_in); - continue; - } - write_checkpoint(checkpoint_file, count_in); + if (count_in <= last_processed) { + debug3("skipping line %u, before checkpoint or " + "specified start line", count_in); + continue; } + if (checkpoint_file != NULL) + write_checkpoint(checkpoint_file, count_in); + print_progress(start_lineno, count_in, end_lineno); if (strlen(lp) < 14 || *lp == '!' || *lp == '#') { debug2("%10u: comment or short line", count_in); continue; @@ -701,7 +787,7 @@ prime_test(FILE *in, FILE *out, u_int32_t trials, u_int32_t generator_wanted, } time(&time_stop); - xfree(lp); + free(lp); BN_free(p); BN_free(q); BN_CTX_free(ctx); @@ -1,4 +1,4 @@ -/* $OpenBSD: monitor.c,v 1.116 2012/01/05 00:16:56 djm Exp $ */ +/* $OpenBSD: monitor.c,v 1.128 2013/11/04 11:51:16 markus Exp $ */ /* * Copyright 2002 Niels Provos <provos@citi.umich.edu> * Copyright 2002 Markus Friedl <markus@openbsd.org> @@ -97,6 +97,7 @@ #include "ssh2.h" #include "jpake.h" #include "roaming.h" +#include "authfd.h" #ifdef GSSAPI static Gssctxt *gsscontext = NULL; @@ -199,6 +200,7 @@ static int key_blobtype = MM_NOKEY; static char *hostbased_cuser = NULL; static char *hostbased_chost = NULL; static char *auth_method = "unknown"; +static char *auth_submethod = NULL; static u_int session_id2_len = 0; static u_char *session_id2 = NULL; static pid_t monitor_child_pid; @@ -352,7 +354,7 @@ void monitor_child_preauth(Authctxt *_authctxt, struct monitor *pmonitor) { struct mon_table *ent; - int authenticated = 0; + int authenticated = 0, partial = 0; debug3("preauth child monitor started"); @@ -379,8 +381,26 @@ monitor_child_preauth(Authctxt *_authctxt, struct monitor *pmonitor) /* The first few requests do not require asynchronous access */ while (!authenticated) { + partial = 0; auth_method = "unknown"; + auth_submethod = NULL; authenticated = (monitor_read(pmonitor, mon_dispatch, &ent) == 1); + + /* Special handling for multiple required authentications */ + if (options.num_auth_methods != 0) { + if (!compat20) + fatal("AuthenticationMethods is not supported" + "with SSH protocol 1"); + if (authenticated && + !auth2_update_methods_lists(authctxt, + auth_method, auth_submethod)) { + debug3("%s: method %s: partial", __func__, + auth_method); + authenticated = 0; + partial = 1; + } + } + if (authenticated) { if (!(ent->flags & MON_AUTHDECIDE)) fatal("%s: unexpected authentication from %d", @@ -401,10 +421,9 @@ monitor_child_preauth(Authctxt *_authctxt, struct monitor *pmonitor) } #endif } - if (ent->flags & (MON_AUTHDECIDE|MON_ALOG)) { - auth_log(authctxt, authenticated, auth_method, - compat20 ? " ssh2" : ""); + auth_log(authctxt, authenticated, partial, + auth_method, auth_submethod); if (!authenticated) authctxt->failures++; } @@ -419,10 +438,6 @@ monitor_child_preauth(Authctxt *_authctxt, struct monitor *pmonitor) #endif } - /* Drain any buffered messages from the child */ - while (pmonitor->m_log_recvfd != -1 && monitor_read_log(pmonitor) == 0) - ; - if (!authctxt->valid) fatal("%s: authenticated invalid user", __func__); if (strcmp(auth_method, "unknown") == 0) @@ -433,6 +448,10 @@ monitor_child_preauth(Authctxt *_authctxt, struct monitor *pmonitor) mm_get_keystate(pmonitor); + /* Drain any buffered messages from the child */ + while (pmonitor->m_log_recvfd != -1 && monitor_read_log(pmonitor) == 0) + ; + close(pmonitor->m_sendfd); close(pmonitor->m_log_recvfd); pmonitor->m_sendfd = pmonitor->m_log_recvfd = -1; @@ -479,9 +498,6 @@ monitor_child_postauth(struct monitor *pmonitor) for (;;) monitor_read(pmonitor, mon_dispatch, NULL); - - close(pmonitor->m_sendfd); - pmonitor->m_sendfd = -1; } void @@ -535,7 +551,7 @@ monitor_read_log(struct monitor *pmonitor) do_log2(level, "%s [preauth]", msg); buffer_free(&logmsg); - xfree(msg); + free(msg); return 0; } @@ -626,12 +642,9 @@ static void monitor_reset_key_state(void) { /* reset state */ - if (key_blob != NULL) - xfree(key_blob); - if (hostbased_cuser != NULL) - xfree(hostbased_cuser); - if (hostbased_chost != NULL) - xfree(hostbased_chost); + free(key_blob); + free(hostbased_cuser); + free(hostbased_chost); key_blob = NULL; key_bloblen = 0; key_blobtype = MM_NOKEY; @@ -674,6 +687,8 @@ mm_answer_moduli(int sock, Buffer *m) return (0); } +extern AuthenticationConnection *auth_conn; + int mm_answer_sign(int sock, Buffer *m) { @@ -702,18 +717,24 @@ mm_answer_sign(int sock, Buffer *m) memcpy(session_id2, p, session_id2_len); } - if ((key = get_hostkey_by_index(keyid)) == NULL) + if ((key = get_hostkey_by_index(keyid)) != NULL) { + if (key_sign(key, &signature, &siglen, p, datlen) < 0) + fatal("%s: key_sign failed", __func__); + } else if ((key = get_hostkey_public_by_index(keyid)) != NULL && + auth_conn != NULL) { + if (ssh_agent_sign(auth_conn, key, &signature, &siglen, p, + datlen) < 0) + fatal("%s: ssh_agent_sign failed", __func__); + } else fatal("%s: no hostkey from index %d", __func__, keyid); - if (key_sign(key, &signature, &siglen, p, datlen) < 0) - fatal("%s: key_sign failed", __func__); debug3("%s: signature %p(%u)", __func__, signature, siglen); buffer_clear(m); buffer_put_string(m, signature, siglen); - xfree(p); - xfree(signature); + free(p); + free(signature); mm_request_send(sock, MONITOR_ANS_SIGN, m); @@ -744,7 +765,7 @@ mm_answer_pwnamallow(int sock, Buffer *m) authctxt->user = xstrdup(username); setproctitle("%s [priv]", pwent ? username : "unknown"); - xfree(username); + free(username); buffer_clear(m); @@ -762,8 +783,10 @@ mm_answer_pwnamallow(int sock, Buffer *m) buffer_put_string(m, pwent, sizeof(struct passwd)); buffer_put_cstring(m, pwent->pw_name); buffer_put_cstring(m, "*"); +#ifdef HAVE_STRUCT_PASSWD_PW_GECOS buffer_put_cstring(m, pwent->pw_gecos); -#ifdef HAVE_PW_CLASS_IN_PASSWD +#endif +#ifdef HAVE_STRUCT_PASSWD_PW_CLASS buffer_put_cstring(m, pwent->pw_class); #endif buffer_put_cstring(m, pwent->pw_dir); @@ -784,7 +807,17 @@ mm_answer_pwnamallow(int sock, Buffer *m) COPY_MATCH_STRING_OPTS(); #undef M_CP_STROPT #undef M_CP_STRARRAYOPT - + + /* Create valid auth method lists */ + if (compat20 && auth2_setup_methods_lists(authctxt) != 0) { + /* + * The monitor will continue long enough to let the child + * run to it's packet_disconnect(), but it must not allow any + * authentication to succeed. + */ + debug("%s: no valid authentication method lists", __func__); + } + debug3("%s: sending MONITOR_ANS_PWNAM: %d", __func__, allowed); mm_request_send(sock, MONITOR_ANS_PWNAM, m); @@ -812,9 +845,7 @@ int mm_answer_auth2_read_banner(int sock, Buffer *m) banner = auth2_read_banner(); buffer_put_cstring(m, banner != NULL ? banner : ""); mm_request_send(sock, MONITOR_ANS_AUTH2_READ_BANNER, m); - - if (banner != NULL) - xfree(banner); + free(banner); return (0); } @@ -830,7 +861,7 @@ mm_answer_authserv(int sock, Buffer *m) __func__, authctxt->service, authctxt->style); if (strlen(authctxt->style) == 0) { - xfree(authctxt->style); + free(authctxt->style); authctxt->style = NULL; } @@ -850,7 +881,7 @@ mm_answer_authpassword(int sock, Buffer *m) authenticated = options.password_authentication && auth_password(authctxt, passwd); memset(passwd, 0, strlen(passwd)); - xfree(passwd); + free(passwd); buffer_clear(m); buffer_put_int(m, authenticated); @@ -890,10 +921,10 @@ mm_answer_bsdauthquery(int sock, Buffer *m) mm_request_send(sock, MONITOR_ANS_BSDAUTHQUERY, m); if (success) { - xfree(name); - xfree(infotxt); - xfree(prompts); - xfree(echo_on); + free(name); + free(infotxt); + free(prompts); + free(echo_on); } return (0); @@ -913,7 +944,7 @@ mm_answer_bsdauthrespond(int sock, Buffer *m) auth_userresponse(authctxt->as, response, 0); authctxt->as = NULL; debug3("%s: <%s> = <%d>", __func__, response, authok); - xfree(response); + free(response); buffer_clear(m); buffer_put_int(m, authok); @@ -921,7 +952,11 @@ mm_answer_bsdauthrespond(int sock, Buffer *m) debug3("%s: sending authenticated: %d", __func__, authok); mm_request_send(sock, MONITOR_ANS_BSDAUTHRESPOND, m); - auth_method = "bsdauth"; + if (compat20) { + auth_method = "keyboard-interactive"; + auth_submethod = "bsdauth"; + } else + auth_method = "bsdauth"; return (authok != 0); } @@ -962,7 +997,7 @@ mm_answer_skeyrespond(int sock, Buffer *m) skey_haskey(authctxt->pw->pw_name) == 0 && skey_passcheck(authctxt->pw->pw_name, response) != -1); - xfree(response); + free(response); buffer_clear(m); buffer_put_int(m, authok); @@ -1047,20 +1082,19 @@ mm_answer_pam_query(int sock, Buffer *m) buffer_clear(m); buffer_put_int(m, ret); buffer_put_cstring(m, name); - xfree(name); + free(name); buffer_put_cstring(m, info); - xfree(info); + free(info); buffer_put_int(m, num); for (i = 0; i < num; ++i) { buffer_put_cstring(m, prompts[i]); - xfree(prompts[i]); + free(prompts[i]); buffer_put_int(m, echo_on[i]); } - if (prompts != NULL) - xfree(prompts); - if (echo_on != NULL) - xfree(echo_on); - auth_method = "keyboard-interactive/pam"; + free(prompts); + free(echo_on); + auth_method = "keyboard-interactive"; + auth_submethod = "pam"; mm_request_send(sock, MONITOR_ANS_PAM_QUERY, m); return (0); } @@ -1081,15 +1115,16 @@ mm_answer_pam_respond(int sock, Buffer *m) resp[i] = buffer_get_string(m, NULL); ret = (sshpam_device.respond)(sshpam_ctxt, num, resp); for (i = 0; i < num; ++i) - xfree(resp[i]); - xfree(resp); + free(resp[i]); + free(resp); } else { ret = (sshpam_device.respond)(sshpam_ctxt, num, NULL); } buffer_clear(m); buffer_put_int(m, ret); mm_request_send(sock, MONITOR_ANS_PAM_RESPOND, m); - auth_method = "keyboard-interactive/pam"; + auth_method = "keyboard-interactive"; + auth_submethod = "pam"; if (ret == 0) sshpam_authok = sshpam_ctxt; return (0); @@ -1103,7 +1138,8 @@ mm_answer_pam_free_ctx(int sock, Buffer *m) (sshpam_device.free_ctx)(sshpam_ctxt); buffer_clear(m); mm_request_send(sock, MONITOR_ANS_PAM_FREE_CTX, m); - auth_method = "keyboard-interactive/pam"; + auth_method = "keyboard-interactive"; + auth_submethod = "pam"; return (sshpam_authok == sshpam_ctxt); } #endif @@ -1138,6 +1174,7 @@ mm_answer_keyallowed(int sock, Buffer *m) case MM_USERKEY: allowed = options.pubkey_authentication && user_key_allowed(authctxt->pw, key); + pubkey_auth_info(authctxt, key, NULL); auth_method = "publickey"; if (options.pubkey_authentication && allowed != 1) auth_clear_options(); @@ -1146,6 +1183,9 @@ mm_answer_keyallowed(int sock, Buffer *m) allowed = options.hostbased_authentication && hostbased_key_allowed(authctxt->pw, cuser, chost, key); + pubkey_auth_info(authctxt, key, + "client user \"%.100s\", client host \"%.100s\"", + cuser, chost); auth_method = "hostbased"; break; case MM_RSAHOSTKEY: @@ -1177,10 +1217,10 @@ mm_answer_keyallowed(int sock, Buffer *m) hostbased_chost = chost; } else { /* Log failed attempt */ - auth_log(authctxt, 0, auth_method, compat20 ? " ssh2" : ""); - xfree(blob); - xfree(cuser); - xfree(chost); + auth_log(authctxt, 0, 0, auth_method, NULL); + free(blob); + free(cuser); + free(chost); } debug3("%s: key %p is %s", @@ -1202,7 +1242,7 @@ static int monitor_valid_userblob(u_char *data, u_int datalen) { Buffer b; - char *p; + char *p, *userstyle; u_int len; int fail = 0; @@ -1223,26 +1263,30 @@ monitor_valid_userblob(u_char *data, u_int datalen) (len != session_id2_len) || (timingsafe_bcmp(p, session_id2, session_id2_len) != 0)) fail++; - xfree(p); + free(p); } if (buffer_get_char(&b) != SSH2_MSG_USERAUTH_REQUEST) fail++; - p = buffer_get_string(&b, NULL); - if (strcmp(authctxt->user, p) != 0) { + p = buffer_get_cstring(&b, NULL); + xasprintf(&userstyle, "%s%s%s", authctxt->user, + authctxt->style ? ":" : "", + authctxt->style ? authctxt->style : ""); + if (strcmp(userstyle, p) != 0) { logit("wrong user name passed to monitor: expected %s != %.100s", - authctxt->user, p); + userstyle, p); fail++; } - xfree(p); + free(userstyle); + free(p); buffer_skip_string(&b); if (datafellows & SSH_BUG_PKAUTH) { if (!buffer_get_char(&b)) fail++; } else { - p = buffer_get_string(&b, NULL); + p = buffer_get_cstring(&b, NULL); if (strcmp("publickey", p) != 0) fail++; - xfree(p); + free(p); if (!buffer_get_char(&b)) fail++; buffer_skip_string(&b); @@ -1259,7 +1303,7 @@ monitor_valid_hostbasedblob(u_char *data, u_int datalen, char *cuser, char *chost) { Buffer b; - char *p; + char *p, *userstyle; u_int len; int fail = 0; @@ -1271,22 +1315,26 @@ monitor_valid_hostbasedblob(u_char *data, u_int datalen, char *cuser, (len != session_id2_len) || (timingsafe_bcmp(p, session_id2, session_id2_len) != 0)) fail++; - xfree(p); + free(p); if (buffer_get_char(&b) != SSH2_MSG_USERAUTH_REQUEST) fail++; - p = buffer_get_string(&b, NULL); - if (strcmp(authctxt->user, p) != 0) { + p = buffer_get_cstring(&b, NULL); + xasprintf(&userstyle, "%s%s%s", authctxt->user, + authctxt->style ? ":" : "", + authctxt->style ? authctxt->style : ""); + if (strcmp(userstyle, p) != 0) { logit("wrong user name passed to monitor: expected %s != %.100s", - authctxt->user, p); + userstyle, p); fail++; } - xfree(p); + free(userstyle); + free(p); buffer_skip_string(&b); /* service */ - p = buffer_get_string(&b, NULL); + p = buffer_get_cstring(&b, NULL); if (strcmp(p, "hostbased") != 0) fail++; - xfree(p); + free(p); buffer_skip_string(&b); /* pkalg */ buffer_skip_string(&b); /* pkblob */ @@ -1296,13 +1344,13 @@ monitor_valid_hostbasedblob(u_char *data, u_int datalen, char *cuser, p[len - 1] = '\0'; if (strcmp(p, chost) != 0) fail++; - xfree(p); + free(p); /* verify client user */ p = buffer_get_string(&b, NULL); if (strcmp(p, cuser) != 0) fail++; - xfree(p); + free(p); if (buffer_len(&b) != 0) fail++; @@ -1351,9 +1399,9 @@ mm_answer_keyverify(int sock, Buffer *m) __func__, key, (verified == 1) ? "verified" : "unverified"); key_free(key); - xfree(blob); - xfree(signature); - xfree(data); + free(blob); + free(signature); + free(data); auth_method = key_blobtype == MM_USERKEY ? "publickey" : "hostbased"; @@ -1481,7 +1529,7 @@ mm_answer_pty_cleanup(int sock, Buffer *m) if ((s = session_by_tty(tty)) != NULL) mm_session_close(s); buffer_clear(m); - xfree(tty); + free(tty); return (0); } @@ -1613,7 +1661,7 @@ mm_answer_rsa_challenge(int sock, Buffer *m) monitor_permit(mon_dispatch, MONITOR_REQ_RSARESPONSE, 1); - xfree(blob); + free(blob); key_free(key); return (0); } @@ -1645,9 +1693,9 @@ mm_answer_rsa_response(int sock, Buffer *m) fatal("%s: received bad response to challenge", __func__); success = auth_rsa_verify_response(key, ssh1_challenge, response); - xfree(blob); + free(blob); key_free(key); - xfree(response); + free(response); auth_method = key_blobtype == MM_RSAUSERKEY ? "rsa" : "rhosts-rsa"; @@ -1726,7 +1774,7 @@ mm_answer_audit_command(int socket, Buffer *m) cmd = buffer_get_string(m, &len); /* sanity check command, if so how? */ audit_run_command(cmd); - xfree(cmd); + free(cmd); return (0); } #endif /* SSH_AUDIT_EVENTS */ @@ -1741,20 +1789,20 @@ monitor_apply_keystate(struct monitor *pmonitor) packet_set_protocol_flags(child_state.ssh1protoflags); packet_set_encryption_key(child_state.ssh1key, child_state.ssh1keylen, child_state.ssh1cipher); - xfree(child_state.ssh1key); + free(child_state.ssh1key); } /* for rc4 and other stateful ciphers */ packet_set_keycontext(MODE_OUT, child_state.keyout); - xfree(child_state.keyout); + free(child_state.keyout); packet_set_keycontext(MODE_IN, child_state.keyin); - xfree(child_state.keyin); + free(child_state.keyin); if (!compat20) { packet_set_iv(MODE_OUT, child_state.ivout); - xfree(child_state.ivout); + free(child_state.ivout); packet_set_iv(MODE_IN, child_state.ivin); - xfree(child_state.ivin); + free(child_state.ivin); } memcpy(&incoming_stream, &child_state.incoming, @@ -1766,18 +1814,22 @@ monitor_apply_keystate(struct monitor *pmonitor) if (options.compression) mm_init_compression(pmonitor->m_zlib); + if (options.rekey_limit || options.rekey_interval) + packet_set_rekey_limits((u_int32_t)options.rekey_limit, + (time_t)options.rekey_interval); + /* Network I/O buffers */ /* XXX inefficient for large buffers, need: buffer_init_from_string */ buffer_clear(packet_get_input()); buffer_append(packet_get_input(), child_state.input, child_state.ilen); memset(child_state.input, 0, child_state.ilen); - xfree(child_state.input); + free(child_state.input); buffer_clear(packet_get_output()); buffer_append(packet_get_output(), child_state.output, child_state.olen); memset(child_state.output, 0, child_state.olen); - xfree(child_state.output); + free(child_state.output); /* Roaming */ if (compat20) @@ -1803,17 +1855,18 @@ mm_get_kex(Buffer *m) kex->kex[KEX_DH_GEX_SHA1] = kexgex_server; kex->kex[KEX_DH_GEX_SHA256] = kexgex_server; kex->kex[KEX_ECDH_SHA2] = kexecdh_server; + kex->kex[KEX_C25519_SHA256] = kexc25519_server; kex->server = 1; kex->hostkey_type = buffer_get_int(m); kex->kex_type = buffer_get_int(m); blob = buffer_get_string(m, &bloblen); buffer_init(&kex->my); buffer_append(&kex->my, blob, bloblen); - xfree(blob); + free(blob); blob = buffer_get_string(m, &bloblen); buffer_init(&kex->peer); buffer_append(&kex->peer, blob, bloblen); - xfree(blob); + free(blob); kex->done = 1; kex->flags = buffer_get_int(m); kex->client_version_string = buffer_get_string(m, NULL); @@ -1821,6 +1874,7 @@ mm_get_kex(Buffer *m) kex->load_host_public_key=&get_hostkey_public_by_type; kex->load_host_private_key=&get_hostkey_private_by_type; kex->host_key_index=&get_hostkey_index; + kex->sign = sshd_hostkey_sign; return (kex); } @@ -1856,12 +1910,12 @@ mm_get_keystate(struct monitor *pmonitor) blob = buffer_get_string(&m, &bloblen); current_keys[MODE_OUT] = mm_newkeys_from_blob(blob, bloblen); - xfree(blob); + free(blob); debug3("%s: Waiting for second key", __func__); blob = buffer_get_string(&m, &bloblen); current_keys[MODE_IN] = mm_newkeys_from_blob(blob, bloblen); - xfree(blob); + free(blob); /* Now get sequence numbers for the packets */ seqnr = buffer_get_int(&m); @@ -1886,13 +1940,13 @@ mm_get_keystate(struct monitor *pmonitor) if (plen != sizeof(child_state.outgoing)) fatal("%s: bad request size", __func__); memcpy(&child_state.outgoing, p, sizeof(child_state.outgoing)); - xfree(p); + free(p); p = buffer_get_string(&m, &plen); if (plen != sizeof(child_state.incoming)) fatal("%s: bad request size", __func__); memcpy(&child_state.incoming, p, sizeof(child_state.incoming)); - xfree(p); + free(p); /* Network I/O buffers */ debug3("%s: Getting Network I/O buffers", __func__); @@ -2014,7 +2068,7 @@ mm_answer_gss_setup_ctx(int sock, Buffer *m) major = ssh_gssapi_server_ctx(&gsscontext, &goid); - xfree(goid.elements); + free(goid.elements); buffer_clear(m); buffer_put_int(m, major); @@ -2039,7 +2093,7 @@ mm_answer_gss_accept_ctx(int sock, Buffer *m) in.value = buffer_get_string(m, &len); in.length = len; major = ssh_gssapi_accept_ctx(gsscontext, &in, &out, &flags); - xfree(in.value); + free(in.value); buffer_clear(m); buffer_put_int(m, major); @@ -2071,8 +2125,8 @@ mm_answer_gss_checkmic(int sock, Buffer *m) ret = ssh_gssapi_checkmic(gsscontext, &gssbuf, &mic); - xfree(gssbuf.value); - xfree(mic.value); + free(gssbuf.value); + free(mic.value); buffer_clear(m); buffer_put_int(m, ret); @@ -2142,8 +2196,8 @@ mm_answer_jpake_step1(int sock, Buffer *m) bzero(x3_proof, x3_proof_len); bzero(x4_proof, x4_proof_len); - xfree(x3_proof); - xfree(x4_proof); + free(x3_proof); + free(x4_proof); monitor_permit(mon_dispatch, MONITOR_REQ_JPAKE_GET_PWDATA, 1); monitor_permit(mon_dispatch, MONITOR_REQ_JPAKE_STEP1, 0); @@ -2172,8 +2226,8 @@ mm_answer_jpake_get_pwdata(int sock, Buffer *m) bzero(hash_scheme, strlen(hash_scheme)); bzero(salt, strlen(salt)); - xfree(hash_scheme); - xfree(salt); + free(hash_scheme); + free(salt); monitor_permit(mon_dispatch, MONITOR_REQ_JPAKE_STEP2, 1); @@ -2212,8 +2266,8 @@ mm_answer_jpake_step2(int sock, Buffer *m) bzero(x1_proof, x1_proof_len); bzero(x2_proof, x2_proof_len); - xfree(x1_proof); - xfree(x2_proof); + free(x1_proof); + free(x2_proof); buffer_clear(m); @@ -2224,7 +2278,7 @@ mm_answer_jpake_step2(int sock, Buffer *m) mm_request_send(sock, MONITOR_ANS_JPAKE_STEP2, m); bzero(x4_s_proof, x4_s_proof_len); - xfree(x4_s_proof); + free(x4_s_proof); monitor_permit(mon_dispatch, MONITOR_REQ_JPAKE_KEY_CONFIRM, 1); @@ -2292,7 +2346,7 @@ mm_answer_jpake_check_confirm(int sock, Buffer *m) JPAKE_DEBUG_CTX((pctx, "check_confirm done in %s", __func__)); bzero(peer_confirm_hash, peer_confirm_hash_len); - xfree(peer_confirm_hash); + free(peer_confirm_hash); buffer_clear(m); buffer_put_int(m, authenticated); @@ -1,4 +1,4 @@ -/* $OpenBSD: monitor.h,v 1.16 2011/06/17 21:44:31 djm Exp $ */ +/* $OpenBSD: monitor.h,v 1.17 2012/12/02 20:34:10 djm Exp $ */ /* * Copyright 2002 Niels Provos <provos@citi.umich.edu> @@ -28,44 +28,48 @@ #ifndef _MONITOR_H_ #define _MONITOR_H_ +/* Please keep *_REQ_* values on even numbers and *_ANS_* on odd numbers */ enum monitor_reqtype { - MONITOR_REQ_MODULI, MONITOR_ANS_MODULI, - MONITOR_REQ_FREE, MONITOR_REQ_AUTHSERV, - MONITOR_REQ_SIGN, MONITOR_ANS_SIGN, - MONITOR_REQ_PWNAM, MONITOR_ANS_PWNAM, - MONITOR_REQ_AUTH2_READ_BANNER, MONITOR_ANS_AUTH2_READ_BANNER, - MONITOR_REQ_AUTHPASSWORD, MONITOR_ANS_AUTHPASSWORD, - MONITOR_REQ_BSDAUTHQUERY, MONITOR_ANS_BSDAUTHQUERY, - MONITOR_REQ_BSDAUTHRESPOND, MONITOR_ANS_BSDAUTHRESPOND, - MONITOR_REQ_SKEYQUERY, MONITOR_ANS_SKEYQUERY, - MONITOR_REQ_SKEYRESPOND, MONITOR_ANS_SKEYRESPOND, - MONITOR_REQ_KEYALLOWED, MONITOR_ANS_KEYALLOWED, - MONITOR_REQ_KEYVERIFY, MONITOR_ANS_KEYVERIFY, - MONITOR_REQ_KEYEXPORT, - MONITOR_REQ_PTY, MONITOR_ANS_PTY, - MONITOR_REQ_PTYCLEANUP, - MONITOR_REQ_SESSKEY, MONITOR_ANS_SESSKEY, - MONITOR_REQ_SESSID, - MONITOR_REQ_RSAKEYALLOWED, MONITOR_ANS_RSAKEYALLOWED, - MONITOR_REQ_RSACHALLENGE, MONITOR_ANS_RSACHALLENGE, - MONITOR_REQ_RSARESPONSE, MONITOR_ANS_RSARESPONSE, - MONITOR_REQ_GSSSETUP, MONITOR_ANS_GSSSETUP, - MONITOR_REQ_GSSSTEP, MONITOR_ANS_GSSSTEP, - MONITOR_REQ_GSSUSEROK, MONITOR_ANS_GSSUSEROK, - MONITOR_REQ_GSSCHECKMIC, MONITOR_ANS_GSSCHECKMIC, - MONITOR_REQ_PAM_START, - MONITOR_REQ_PAM_ACCOUNT, MONITOR_ANS_PAM_ACCOUNT, - MONITOR_REQ_PAM_INIT_CTX, MONITOR_ANS_PAM_INIT_CTX, - MONITOR_REQ_PAM_QUERY, MONITOR_ANS_PAM_QUERY, - MONITOR_REQ_PAM_RESPOND, MONITOR_ANS_PAM_RESPOND, - MONITOR_REQ_PAM_FREE_CTX, MONITOR_ANS_PAM_FREE_CTX, - MONITOR_REQ_AUDIT_EVENT, MONITOR_REQ_AUDIT_COMMAND, - MONITOR_REQ_TERM, - MONITOR_REQ_JPAKE_STEP1, MONITOR_ANS_JPAKE_STEP1, - MONITOR_REQ_JPAKE_GET_PWDATA, MONITOR_ANS_JPAKE_GET_PWDATA, - MONITOR_REQ_JPAKE_STEP2, MONITOR_ANS_JPAKE_STEP2, - MONITOR_REQ_JPAKE_KEY_CONFIRM, MONITOR_ANS_JPAKE_KEY_CONFIRM, - MONITOR_REQ_JPAKE_CHECK_CONFIRM, MONITOR_ANS_JPAKE_CHECK_CONFIRM, + MONITOR_REQ_MODULI = 0, MONITOR_ANS_MODULI = 1, + MONITOR_REQ_FREE = 2, + MONITOR_REQ_AUTHSERV = 4, + MONITOR_REQ_SIGN = 6, MONITOR_ANS_SIGN = 7, + MONITOR_REQ_PWNAM = 8, MONITOR_ANS_PWNAM = 9, + MONITOR_REQ_AUTH2_READ_BANNER = 10, MONITOR_ANS_AUTH2_READ_BANNER = 11, + MONITOR_REQ_AUTHPASSWORD = 12, MONITOR_ANS_AUTHPASSWORD = 13, + MONITOR_REQ_BSDAUTHQUERY = 14, MONITOR_ANS_BSDAUTHQUERY = 15, + MONITOR_REQ_BSDAUTHRESPOND = 16, MONITOR_ANS_BSDAUTHRESPOND = 17, + MONITOR_REQ_SKEYQUERY = 18, MONITOR_ANS_SKEYQUERY = 19, + MONITOR_REQ_SKEYRESPOND = 20, MONITOR_ANS_SKEYRESPOND = 21, + MONITOR_REQ_KEYALLOWED = 22, MONITOR_ANS_KEYALLOWED = 23, + MONITOR_REQ_KEYVERIFY = 24, MONITOR_ANS_KEYVERIFY = 25, + MONITOR_REQ_KEYEXPORT = 26, + MONITOR_REQ_PTY = 28, MONITOR_ANS_PTY = 29, + MONITOR_REQ_PTYCLEANUP = 30, + MONITOR_REQ_SESSKEY = 32, MONITOR_ANS_SESSKEY = 33, + MONITOR_REQ_SESSID = 34, + MONITOR_REQ_RSAKEYALLOWED = 36, MONITOR_ANS_RSAKEYALLOWED = 37, + MONITOR_REQ_RSACHALLENGE = 38, MONITOR_ANS_RSACHALLENGE = 39, + MONITOR_REQ_RSARESPONSE = 40, MONITOR_ANS_RSARESPONSE = 41, + MONITOR_REQ_GSSSETUP = 42, MONITOR_ANS_GSSSETUP = 43, + MONITOR_REQ_GSSSTEP = 44, MONITOR_ANS_GSSSTEP = 45, + MONITOR_REQ_GSSUSEROK = 46, MONITOR_ANS_GSSUSEROK = 47, + MONITOR_REQ_GSSCHECKMIC = 48, MONITOR_ANS_GSSCHECKMIC = 49, + MONITOR_REQ_TERM = 50, + MONITOR_REQ_JPAKE_STEP1 = 52, MONITOR_ANS_JPAKE_STEP1 = 53, + MONITOR_REQ_JPAKE_GET_PWDATA = 54, MONITOR_ANS_JPAKE_GET_PWDATA = 55, + MONITOR_REQ_JPAKE_STEP2 = 56, MONITOR_ANS_JPAKE_STEP2 = 57, + MONITOR_REQ_JPAKE_KEY_CONFIRM = 58, MONITOR_ANS_JPAKE_KEY_CONFIRM = 59, + MONITOR_REQ_JPAKE_CHECK_CONFIRM = 60, MONITOR_ANS_JPAKE_CHECK_CONFIRM = 61, + + MONITOR_REQ_PAM_START = 100, + MONITOR_REQ_PAM_ACCOUNT = 102, MONITOR_ANS_PAM_ACCOUNT = 103, + MONITOR_REQ_PAM_INIT_CTX = 104, MONITOR_ANS_PAM_INIT_CTX = 105, + MONITOR_REQ_PAM_QUERY = 106, MONITOR_ANS_PAM_QUERY = 107, + MONITOR_REQ_PAM_RESPOND = 108, MONITOR_ANS_PAM_RESPOND = 109, + MONITOR_REQ_PAM_FREE_CTX = 110, MONITOR_ANS_PAM_FREE_CTX = 111, + MONITOR_REQ_AUDIT_EVENT = 112, MONITOR_REQ_AUDIT_COMMAND = 113, + }; struct mm_master; diff --git a/monitor_mm.c b/monitor_mm.c index faf9f3dc..0ba0658a 100644 --- a/monitor_mm.c +++ b/monitor_mm.c @@ -1,4 +1,4 @@ -/* $OpenBSD: monitor_mm.c,v 1.16 2009/06/22 05:39:28 dtucker Exp $ */ +/* $OpenBSD: monitor_mm.c,v 1.19 2014/01/04 17:50:55 tedu Exp $ */ /* * Copyright 2002 Niels Provos <provos@citi.umich.edu> * All rights reserved. @@ -35,6 +35,8 @@ #include <errno.h> #include <stdarg.h> +#include <stddef.h> +#include <stdlib.h> #include <string.h> #include "xmalloc.h" @@ -45,7 +47,7 @@ static int mm_compare(struct mm_share *a, struct mm_share *b) { - long diff = (char *)a->address - (char *)b->address; + ptrdiff_t diff = (char *)a->address - (char *)b->address; if (diff == 0) return (0); @@ -64,7 +66,7 @@ mm_make_entry(struct mm_master *mm, struct mmtree *head, struct mm_share *tmp, *tmp2; if (mm->mmalloc == NULL) - tmp = xmalloc(sizeof(struct mm_share)); + tmp = xcalloc(1, sizeof(struct mm_share)); else tmp = mm_xmalloc(mm->mmalloc, sizeof(struct mm_share)); tmp->address = address; @@ -72,8 +74,8 @@ mm_make_entry(struct mm_master *mm, struct mmtree *head, tmp2 = RB_INSERT(mmtree, head, tmp); if (tmp2 != NULL) - fatal("mm_make_entry(%p): double address %p->%p(%lu)", - mm, tmp2, address, (u_long)size); + fatal("mm_make_entry(%p): double address %p->%p(%zu)", + mm, tmp2, address, size); return (tmp); } @@ -87,7 +89,7 @@ mm_create(struct mm_master *mmalloc, size_t size) struct mm_master *mm; if (mmalloc == NULL) - mm = xmalloc(sizeof(struct mm_master)); + mm = xcalloc(1, sizeof(struct mm_master)); else mm = mm_xmalloc(mmalloc, sizeof(struct mm_master)); @@ -100,7 +102,7 @@ mm_create(struct mm_master *mmalloc, size_t size) address = xmmap(size); if (address == (void *)MAP_FAILED) - fatal("mmap(%lu): %s", (u_long)size, strerror(errno)); + fatal("mmap(%zu): %s", size, strerror(errno)); mm->address = address; mm->size = size; @@ -124,7 +126,7 @@ mm_freelist(struct mm_master *mmalloc, struct mmtree *head) next = RB_NEXT(mmtree, head, mms); RB_REMOVE(mmtree, head, mms); if (mmalloc == NULL) - xfree(mms); + free(mms); else mm_free(mmalloc, mms); } @@ -140,14 +142,14 @@ mm_destroy(struct mm_master *mm) #ifdef HAVE_MMAP if (munmap(mm->address, mm->size) == -1) - fatal("munmap(%p, %lu): %s", mm->address, (u_long)mm->size, + fatal("munmap(%p, %zu): %s", mm->address, mm->size, strerror(errno)); #else fatal("%s: UsePrivilegeSeparation=yes and Compression=yes not supported", __func__); #endif if (mm->mmalloc == NULL) - xfree(mm); + free(mm); else mm_free(mm->mmalloc, mm); } @@ -159,7 +161,8 @@ mm_xmalloc(struct mm_master *mm, size_t size) address = mm_malloc(mm, size); if (address == NULL) - fatal("%s: mm_malloc(%lu)", __func__, (u_long)size); + fatal("%s: mm_malloc(%zu)", __func__, size); + memset(address, 0, size); return (address); } @@ -193,12 +196,12 @@ mm_malloc(struct mm_master *mm, size_t size) /* Does not change order in RB tree */ mms->size -= size; - mms->address = (u_char *)mms->address + size; + mms->address = (char *)mms->address + size; if (mms->size == 0) { RB_REMOVE(mmtree, &mm->rb_free, mms); if (mm->mmalloc == NULL) - xfree(mms); + free(mms); else mm_free(mm->mmalloc, mms); } @@ -246,15 +249,15 @@ mm_free(struct mm_master *mm, void *address) /* Check if range does not overlap */ if (prev != NULL && MM_ADDRESS_END(prev) > address) - fatal("mm_free: memory corruption: %p(%lu) > %p", - prev->address, (u_long)prev->size, address); + fatal("mm_free: memory corruption: %p(%zu) > %p", + prev->address, prev->size, address); /* See if we can merge backwards */ if (prev != NULL && MM_ADDRESS_END(prev) == address) { prev->size += mms->size; RB_REMOVE(mmtree, &mm->rb_free, mms); if (mm->mmalloc == NULL) - xfree(mms); + free(mms); else mm_free(mm->mmalloc, mms); } else @@ -269,8 +272,8 @@ mm_free(struct mm_master *mm, void *address) return; if (MM_ADDRESS_END(prev) > mms->address) - fatal("mm_free: memory corruption: %p < %p(%lu)", - mms->address, prev->address, (u_long)prev->size); + fatal("mm_free: memory corruption: %p < %p(%zu)", + mms->address, prev->address, prev->size); if (MM_ADDRESS_END(prev) != mms->address) return; @@ -278,7 +281,7 @@ mm_free(struct mm_master *mm, void *address) RB_REMOVE(mmtree, &mm->rb_free, mms); if (mm->mmalloc == NULL) - xfree(mms); + free(mms); else mm_free(mm->mmalloc, mms); } @@ -341,12 +344,12 @@ mm_share_sync(struct mm_master **pmm, struct mm_master **pmmalloc) void mm_memvalid(struct mm_master *mm, void *address, size_t size) { - void *end = (u_char *)address + size; + void *end = (char *)address + size; if (address < mm->address) fatal("mm_memvalid: address too small: %p", address); if (end < address) fatal("mm_memvalid: end < address: %p < %p", end, address); - if (end > (void *)((u_char *)mm->address + mm->size)) + if (end > MM_ADDRESS_END(mm)) fatal("mm_memvalid: address too large: %p", address); } diff --git a/monitor_mm.h b/monitor_mm.h index c890f770..f1fae7e3 100644 --- a/monitor_mm.h +++ b/monitor_mm.h @@ -1,4 +1,4 @@ -/* $OpenBSD: monitor_mm.h,v 1.5 2008/04/29 11:20:31 otto Exp $ */ +/* $OpenBSD: monitor_mm.h,v 1.6 2014/01/04 17:50:55 tedu Exp $ */ /* * Copyright 2002 Niels Provos <provos@citi.umich.edu> @@ -47,7 +47,7 @@ RB_PROTOTYPE(mmtree, mm_share, next, mm_compare) #define MM_MINSIZE 128 -#define MM_ADDRESS_END(x) (void *)((u_char *)(x)->address + (x)->size) +#define MM_ADDRESS_END(x) (void *)((char *)(x)->address + (x)->size) struct mm_master *mm_create(struct mm_master *, size_t); void mm_destroy(struct mm_master *); diff --git a/monitor_wrap.c b/monitor_wrap.c index 1f60658e..88ff6833 100644 --- a/monitor_wrap.c +++ b/monitor_wrap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: monitor_wrap.c,v 1.73 2011/06/17 21:44:31 djm Exp $ */ +/* $OpenBSD: monitor_wrap.c,v 1.76 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright 2002 Niels Provos <provos@citi.umich.edu> * Copyright 2002 Markus Friedl <markus@openbsd.org> @@ -259,8 +259,10 @@ mm_getpwnamallow(const char *username) fatal("%s: struct passwd size mismatch", __func__); pw->pw_name = buffer_get_string(&m, NULL); pw->pw_passwd = buffer_get_string(&m, NULL); +#ifdef HAVE_STRUCT_PASSWD_PW_GECOS pw->pw_gecos = buffer_get_string(&m, NULL); -#ifdef HAVE_PW_CLASS_IN_PASSWD +#endif +#ifdef HAVE_STRUCT_PASSWD_PW_CLASS pw->pw_class = buffer_get_string(&m, NULL); #endif pw->pw_dir = buffer_get_string(&m, NULL); @@ -286,7 +288,7 @@ out: #undef M_CP_STRARRAYOPT copy_set_server_options(&options, newopts, 1); - xfree(newopts); + free(newopts); buffer_free(&m); @@ -312,7 +314,7 @@ mm_auth2_read_banner(void) /* treat empty banner as missing banner */ if (strlen(banner) == 0) { - xfree(banner); + free(banner); banner = NULL; } return (banner); @@ -405,7 +407,7 @@ mm_key_allowed(enum mm_keytype type, char *user, char *host, Key *key) buffer_put_cstring(&m, user ? user : ""); buffer_put_cstring(&m, host ? host : ""); buffer_put_string(&m, blob, len); - xfree(blob); + free(blob); mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYALLOWED, &m); @@ -448,7 +450,7 @@ mm_key_verify(Key *key, u_char *sig, u_int siglen, u_char *data, u_int datalen) buffer_put_string(&m, blob, len); buffer_put_string(&m, sig, siglen); buffer_put_string(&m, data, datalen); - xfree(blob); + free(blob); mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KEYVERIFY, &m); @@ -491,25 +493,24 @@ mm_newkeys_from_blob(u_char *blob, int blen) enc->enabled = buffer_get_int(&b); enc->block_size = buffer_get_int(&b); enc->key = buffer_get_string(&b, &enc->key_len); - enc->iv = buffer_get_string(&b, &len); - if (len != enc->block_size) - fatal("%s: bad ivlen: expected %u != %u", __func__, - enc->block_size, len); + enc->iv = buffer_get_string(&b, &enc->iv_len); if (enc->name == NULL || cipher_by_name(enc->name) != enc->cipher) fatal("%s: bad cipher name %s or pointer %p", __func__, enc->name, enc->cipher); /* Mac structure */ - mac->name = buffer_get_string(&b, NULL); - if (mac->name == NULL || mac_setup(mac, mac->name) == -1) - fatal("%s: can not setup mac %s", __func__, mac->name); - mac->enabled = buffer_get_int(&b); - mac->key = buffer_get_string(&b, &len); - if (len > mac->key_len) - fatal("%s: bad mac key length: %u > %d", __func__, len, - mac->key_len); - mac->key_len = len; + if (cipher_authlen(enc->cipher) == 0) { + mac->name = buffer_get_string(&b, NULL); + if (mac->name == NULL || mac_setup(mac, mac->name) == -1) + fatal("%s: can not setup mac %s", __func__, mac->name); + mac->enabled = buffer_get_int(&b); + mac->key = buffer_get_string(&b, &len); + if (len > mac->key_len) + fatal("%s: bad mac key length: %u > %d", __func__, len, + mac->key_len); + mac->key_len = len; + } /* Comp structure */ comp->type = buffer_get_int(&b); @@ -551,13 +552,15 @@ mm_newkeys_to_blob(int mode, u_char **blobp, u_int *lenp) buffer_put_int(&b, enc->enabled); buffer_put_int(&b, enc->block_size); buffer_put_string(&b, enc->key, enc->key_len); - packet_get_keyiv(mode, enc->iv, enc->block_size); - buffer_put_string(&b, enc->iv, enc->block_size); + packet_get_keyiv(mode, enc->iv, enc->iv_len); + buffer_put_string(&b, enc->iv, enc->iv_len); /* Mac structure */ - buffer_put_cstring(&b, mac->name); - buffer_put_int(&b, mac->enabled); - buffer_put_string(&b, mac->key, mac->key_len); + if (cipher_authlen(enc->cipher) == 0) { + buffer_put_cstring(&b, mac->name); + buffer_put_int(&b, mac->enabled); + buffer_put_string(&b, mac->key, mac->key_len); + } /* Comp structure */ buffer_put_int(&b, comp->type); @@ -616,12 +619,12 @@ mm_send_keystate(struct monitor *monitor) keylen = packet_get_encryption_key(key); buffer_put_string(&m, key, keylen); memset(key, 0, keylen); - xfree(key); + free(key); ivlen = packet_get_keyiv_len(MODE_OUT); packet_get_keyiv(MODE_OUT, iv, ivlen); buffer_put_string(&m, iv, ivlen); - ivlen = packet_get_keyiv_len(MODE_OUT); + ivlen = packet_get_keyiv_len(MODE_IN); packet_get_keyiv(MODE_IN, iv, ivlen); buffer_put_string(&m, iv, ivlen); goto skip; @@ -639,13 +642,13 @@ mm_send_keystate(struct monitor *monitor) fatal("%s: conversion of newkeys failed", __func__); buffer_put_string(&m, blob, bloblen); - xfree(blob); + free(blob); if (!mm_newkeys_to_blob(MODE_IN, &blob, &bloblen)) fatal("%s: conversion of newkeys failed", __func__); buffer_put_string(&m, blob, bloblen); - xfree(blob); + free(blob); packet_get_state(MODE_OUT, &seqnr, &blocks, &packets, &bytes); buffer_put_int(&m, seqnr); @@ -665,13 +668,13 @@ mm_send_keystate(struct monitor *monitor) p = xmalloc(plen+1); packet_get_keycontext(MODE_OUT, p); buffer_put_string(&m, p, plen); - xfree(p); + free(p); plen = packet_get_keycontext(MODE_IN, NULL); p = xmalloc(plen+1); packet_get_keycontext(MODE_IN, p); buffer_put_string(&m, p, plen); - xfree(p); + free(p); /* Compression state */ debug3("%s: Sending compression state", __func__); @@ -733,10 +736,10 @@ mm_pty_allocate(int *ptyfd, int *ttyfd, char *namebuf, size_t namebuflen) buffer_free(&m); strlcpy(namebuf, p, namebuflen); /* Possible truncation */ - xfree(p); + free(p); buffer_append(&loginmsg, msg, strlen(msg)); - xfree(msg); + free(msg); if ((*ptyfd = mm_receive_fd(pmonitor->m_recvfd)) == -1 || (*ttyfd = mm_receive_fd(pmonitor->m_recvfd)) == -1) @@ -802,7 +805,7 @@ mm_do_pam_account(void) ret = buffer_get_int(&m); msg = buffer_get_string(&m, NULL); buffer_append(&loginmsg, msg, strlen(msg)); - xfree(msg); + free(msg); buffer_free(&m); @@ -1032,7 +1035,7 @@ mm_skey_query(void *ctx, char **name, char **infotxt, mm_chall_setup(name, infotxt, numprompts, prompts, echo_on); xasprintf(*prompts, "%s%s", challenge, SKEY_PROMPT); - xfree(challenge); + free(challenge); return (0); } @@ -1106,7 +1109,7 @@ mm_auth_rsa_key_allowed(struct passwd *pw, BIGNUM *client_n, Key **rkey) if ((key = key_from_blob(blob, blen)) == NULL) fatal("%s: key_from_blob failed", __func__); *rkey = key; - xfree(blob); + free(blob); } buffer_free(&m); @@ -1133,7 +1136,7 @@ mm_auth_rsa_generate_challenge(Key *key) buffer_init(&m); buffer_put_string(&m, blob, blen); - xfree(blob); + free(blob); mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSACHALLENGE, &m); mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSACHALLENGE, &m); @@ -1162,7 +1165,7 @@ mm_auth_rsa_verify_response(Key *key, BIGNUM *p, u_char response[16]) buffer_init(&m); buffer_put_string(&m, blob, blen); buffer_put_string(&m, response, 16); - xfree(blob); + free(blob); mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_RSARESPONSE, &m); mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_RSARESPONSE, &m); @@ -1,4 +1,4 @@ -/* $OpenBSD: mux.c,v 1.34 2012/01/07 21:11:36 djm Exp $ */ +/* $OpenBSD: mux.c,v 1.44 2013/07/12 00:19:58 djm Exp $ */ /* * Copyright (c) 2002-2008 Damien Miller <djm@openbsd.org> * @@ -63,10 +63,6 @@ # include <util.h> #endif -#ifdef HAVE_LIBUTIL_H -# include <libutil.h> -#endif - #include "openbsd-compat/sys-queue.h" #include "xmalloc.h" #include "log.h" @@ -223,7 +219,8 @@ mux_master_control_cleanup_cb(int cid, void *unused) __func__, c->self, c->remote_id); c->remote_id = -1; sc->ctl_chan = -1; - if (sc->type != SSH_CHANNEL_OPEN) { + if (sc->type != SSH_CHANNEL_OPEN && + sc->type != SSH_CHANNEL_OPENING) { debug2("%s: channel %d: not open", __func__, sc->self); chan_mark_dead(sc); } else { @@ -290,13 +287,13 @@ process_mux_master_hello(u_int rid, Channel *c, Buffer *m, Buffer *r) char *value = buffer_get_string_ret(m, NULL); if (name == NULL || value == NULL) { - if (name != NULL) - xfree(name); + free(name); + free(value); goto malf; } debug2("Unrecognised slave extension \"%s\"", name); - xfree(name); - xfree(value); + free(name); + free(value); } state->hello_rcvd = 1; return 0; @@ -316,6 +313,8 @@ process_mux_new_session(u_int rid, Channel *c, Buffer *m, Buffer *r) cctx->term = NULL; cctx->rid = rid; cmd = reserved = NULL; + cctx->env = NULL; + env_len = 0; if ((reserved = buffer_get_string_ret(m, NULL)) == NULL || buffer_get_int_ret(&cctx->want_tty, m) != 0 || buffer_get_int_ret(&cctx->want_x_fwd, m) != 0 || @@ -325,26 +324,25 @@ process_mux_new_session(u_int rid, Channel *c, Buffer *m, Buffer *r) (cctx->term = buffer_get_string_ret(m, &len)) == NULL || (cmd = buffer_get_string_ret(m, &len)) == NULL) { malf: - if (cmd != NULL) - xfree(cmd); - if (reserved != NULL) - xfree(reserved); - if (cctx->term != NULL) - xfree(cctx->term); + free(cmd); + free(reserved); + for (j = 0; j < env_len; j++) + free(cctx->env[j]); + free(cctx->env); + free(cctx->term); + free(cctx); error("%s: malformed message", __func__); return -1; } - xfree(reserved); + free(reserved); reserved = NULL; - cctx->env = NULL; - env_len = 0; while (buffer_len(m) > 0) { #define MUX_MAX_ENV_VARS 4096 if ((cp = buffer_get_string_ret(m, &len)) == NULL) goto malf; if (!env_permitted(cp)) { - xfree(cp); + free(cp); continue; } cctx->env = xrealloc(cctx->env, env_len + 2, @@ -365,7 +363,7 @@ process_mux_new_session(u_int rid, Channel *c, Buffer *m, Buffer *r) buffer_init(&cctx->cmd); buffer_append(&cctx->cmd, cmd, strlen(cmd)); - xfree(cmd); + free(cmd); cmd = NULL; /* Gather fds from client */ @@ -376,12 +374,11 @@ process_mux_new_session(u_int rid, Channel *c, Buffer *m, Buffer *r) for (j = 0; j < i; j++) close(new_fd[j]); for (j = 0; j < env_len; j++) - xfree(cctx->env[j]); - if (env_len > 0) - xfree(cctx->env); - xfree(cctx->term); + free(cctx->env[j]); + free(cctx->env); + free(cctx->term); buffer_free(&cctx->cmd); - xfree(cctx); + free(cctx); /* prepare reply */ buffer_put_int(r, MUX_S_FAILURE); @@ -406,13 +403,14 @@ process_mux_new_session(u_int rid, Channel *c, Buffer *m, Buffer *r) close(new_fd[0]); close(new_fd[1]); close(new_fd[2]); - xfree(cctx->term); + free(cctx->term); if (env_len != 0) { for (i = 0; i < env_len; i++) - xfree(cctx->env[i]); - xfree(cctx->env); + free(cctx->env[i]); + free(cctx->env); } buffer_free(&cctx->cmd); + free(cctx); return 0; } @@ -617,7 +615,7 @@ mux_confirm_remote_forward(int type, u_int32_t seq, void *ctxt) buffer_put_int(&out, MUX_S_FAILURE); buffer_put_int(&out, fctx->rid); buffer_put_cstring(&out, failmsg); - xfree(failmsg); + free(failmsg); out: buffer_put_string(&c->output, buffer_ptr(&out), buffer_len(&out)); buffer_free(&out); @@ -632,25 +630,28 @@ process_mux_open_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) Forward fwd; char *fwd_desc = NULL; u_int ftype; + u_int lport, cport; int i, ret = 0, freefwd = 1; fwd.listen_host = fwd.connect_host = NULL; if (buffer_get_int_ret(&ftype, m) != 0 || (fwd.listen_host = buffer_get_string_ret(m, NULL)) == NULL || - buffer_get_int_ret(&fwd.listen_port, m) != 0 || + buffer_get_int_ret(&lport, m) != 0 || (fwd.connect_host = buffer_get_string_ret(m, NULL)) == NULL || - buffer_get_int_ret(&fwd.connect_port, m) != 0) { + buffer_get_int_ret(&cport, m) != 0 || + lport > 65535 || cport > 65535) { error("%s: malformed message", __func__); ret = -1; goto out; } - + fwd.listen_port = lport; + fwd.connect_port = cport; if (*fwd.listen_host == '\0') { - xfree(fwd.listen_host); + free(fwd.listen_host); fwd.listen_host = NULL; } if (*fwd.connect_host == '\0') { - xfree(fwd.connect_host); + free(fwd.connect_host); fwd.connect_host = NULL; } @@ -661,10 +662,8 @@ process_mux_open_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) ftype != MUX_FWD_DYNAMIC) { logit("%s: invalid forwarding type %u", __func__, ftype); invalid: - if (fwd.listen_host) - xfree(fwd.listen_host); - if (fwd.connect_host) - xfree(fwd.connect_host); + free(fwd.listen_host); + free(fwd.connect_host); buffer_put_int(r, MUX_S_FAILURE); buffer_put_int(r, rid); buffer_put_cstring(r, "Invalid forwarding request"); @@ -732,9 +731,9 @@ process_mux_open_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) } if (ftype == MUX_FWD_LOCAL || ftype == MUX_FWD_DYNAMIC) { - if (channel_setup_local_fwd_listener(fwd.listen_host, + if (!channel_setup_local_fwd_listener(fwd.listen_host, fwd.listen_port, fwd.connect_host, fwd.connect_port, - options.gateway_ports) < 0) { + options.gateway_ports)) { fail: logit("slave-requested %s failed", fwd_desc); buffer_put_int(r, MUX_S_FAILURE); @@ -766,13 +765,10 @@ process_mux_open_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) buffer_put_int(r, MUX_S_OK); buffer_put_int(r, rid); out: - if (fwd_desc != NULL) - xfree(fwd_desc); + free(fwd_desc); if (freefwd) { - if (fwd.listen_host != NULL) - xfree(fwd.listen_host); - if (fwd.connect_host != NULL) - xfree(fwd.connect_host); + free(fwd.listen_host); + free(fwd.connect_host); } return ret; } @@ -785,24 +781,28 @@ process_mux_close_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) const char *error_reason = NULL; u_int ftype; int i, listen_port, ret = 0; + u_int lport, cport; fwd.listen_host = fwd.connect_host = NULL; if (buffer_get_int_ret(&ftype, m) != 0 || (fwd.listen_host = buffer_get_string_ret(m, NULL)) == NULL || - buffer_get_int_ret(&fwd.listen_port, m) != 0 || + buffer_get_int_ret(&lport, m) != 0 || (fwd.connect_host = buffer_get_string_ret(m, NULL)) == NULL || - buffer_get_int_ret(&fwd.connect_port, m) != 0) { + buffer_get_int_ret(&cport, m) != 0 || + lport > 65535 || cport > 65535) { error("%s: malformed message", __func__); ret = -1; goto out; } + fwd.listen_port = lport; + fwd.connect_port = cport; if (*fwd.listen_host == '\0') { - xfree(fwd.listen_host); + free(fwd.listen_host); fwd.listen_host = NULL; } if (*fwd.connect_host == '\0') { - xfree(fwd.connect_host); + free(fwd.connect_host); fwd.connect_host = NULL; } @@ -859,10 +859,8 @@ process_mux_close_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) buffer_put_int(r, MUX_S_OK); buffer_put_int(r, rid); - if (found_fwd->listen_host != NULL) - xfree(found_fwd->listen_host); - if (found_fwd->connect_host != NULL) - xfree(found_fwd->connect_host); + free(found_fwd->listen_host); + free(found_fwd->connect_host); found_fwd->listen_host = found_fwd->connect_host = NULL; found_fwd->listen_port = found_fwd->connect_port = 0; } else { @@ -871,12 +869,9 @@ process_mux_close_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) buffer_put_cstring(r, error_reason); } out: - if (fwd_desc != NULL) - xfree(fwd_desc); - if (fwd.listen_host != NULL) - xfree(fwd.listen_host); - if (fwd.connect_host != NULL) - xfree(fwd.connect_host); + free(fwd_desc); + free(fwd.listen_host); + free(fwd.connect_host); return ret; } @@ -893,14 +888,12 @@ process_mux_stdio_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) if ((reserved = buffer_get_string_ret(m, NULL)) == NULL || (chost = buffer_get_string_ret(m, NULL)) == NULL || buffer_get_int_ret(&cport, m) != 0) { - if (reserved != NULL) - xfree(reserved); - if (chost != NULL) - xfree(chost); + free(reserved); + free(chost); error("%s: malformed message", __func__); return -1; } - xfree(reserved); + free(reserved); debug2("%s: channel %d: request stdio fwd to %s:%u", __func__, c->self, chost, cport); @@ -912,7 +905,7 @@ process_mux_stdio_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) __func__, i); for (j = 0; j < i; j++) close(new_fd[j]); - xfree(chost); + free(chost); /* prepare reply */ buffer_put_int(r, MUX_S_FAILURE); @@ -936,7 +929,7 @@ process_mux_stdio_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) cleanup: close(new_fd[0]); close(new_fd[1]); - xfree(chost); + free(chost); return 0; } @@ -998,7 +991,7 @@ process_mux_stop_listening(u_int rid, Channel *c, Buffer *m, Buffer *r) if (mux_listener_channel != NULL) { channel_free(mux_listener_channel); client_stop_mux(); - xfree(options.control_path); + free(options.control_path); options.control_path = NULL; mux_listener_channel = NULL; muxserver_sock = -1; @@ -1098,7 +1091,7 @@ mux_exit_message(Channel *c, int exitval) Buffer m; Channel *mux_chan; - debug3("%s: channel %d: exit message, evitval %d", __func__, c->self, + debug3("%s: channel %d: exit message, exitval %d", __func__, c->self, exitval); if ((mux_chan = channel_by_id(c->ctl_chan)) == NULL) @@ -1195,7 +1188,8 @@ muxserver_listen(void) close(muxserver_sock); muxserver_sock = -1; } - xfree(options.control_path); + free(orig_control_path); + free(options.control_path); options.control_path = NULL; options.control_master = SSHCTL_MASTER_NO; return; @@ -1216,12 +1210,11 @@ muxserver_listen(void) } error("ControlSocket %s already exists, disabling multiplexing", orig_control_path); - xfree(orig_control_path); unlink(options.control_path); goto disable_mux_master; } unlink(options.control_path); - xfree(options.control_path); + free(options.control_path); options.control_path = orig_control_path; set_nonblock(muxserver_sock); @@ -1306,13 +1299,13 @@ mux_session_confirm(int id, int success, void *arg) cc->mux_pause = 0; /* start processing messages again */ c->open_confirm_ctx = NULL; buffer_free(&cctx->cmd); - xfree(cctx->term); + free(cctx->term); if (cctx->env != NULL) { for (i = 0; cctx->env[i] != NULL; i++) - xfree(cctx->env[i]); - xfree(cctx->env); + free(cctx->env[i]); + free(cctx->env); } - xfree(cctx); + free(cctx); } /* ** Multiplexing client support */ @@ -1442,7 +1435,9 @@ mux_client_read_packet(int fd, Buffer *m) buffer_init(&queue); if (mux_client_read(fd, &queue, 4) != 0) { if ((oerrno = errno) == EPIPE) - debug3("%s: read header failed: %s", __func__, strerror(errno)); + debug3("%s: read header failed: %s", __func__, + strerror(errno)); + buffer_free(&queue); errno = oerrno; return -1; } @@ -1450,6 +1445,7 @@ mux_client_read_packet(int fd, Buffer *m) if (mux_client_read(fd, &queue, need) != 0) { oerrno = errno; debug3("%s: read body failed: %s", __func__, strerror(errno)); + buffer_free(&queue); errno = oerrno; return -1; } @@ -1496,8 +1492,8 @@ mux_client_hello_exchange(int fd) char *value = buffer_get_string(&m, NULL); debug2("Unrecognised master extension \"%s\"", name); - xfree(name); - xfree(value); + free(name); + free(value); } buffer_free(&m); return 0; @@ -1606,7 +1602,7 @@ mux_client_forward(int fd, int cancel_flag, u_int ftype, Forward *fwd) fwd_desc = format_forward(ftype, fwd); debug("Requesting %s %s", cancel_flag ? "cancellation of" : "forwarding of", fwd_desc); - xfree(fwd_desc); + free(fwd_desc); buffer_init(&m); buffer_put_int(&m, cancel_flag ? MUX_C_CLOSE_FWD : MUX_C_OPEN_FWD); diff --git a/myproposal.h b/myproposal.h index 0bc1c778..3a0f5aea 100644 --- a/myproposal.h +++ b/myproposal.h @@ -1,4 +1,4 @@ -/* $OpenBSD: myproposal.h,v 1.28 2011/08/02 01:22:11 djm Exp $ */ +/* $OpenBSD: myproposal.h,v 1.35 2013/12/06 13:39:49 markus Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. @@ -26,7 +26,10 @@ #include <openssl/opensslv.h> +/* conditional algorithm support */ + #ifdef OPENSSL_HAS_ECC +#ifdef OPENSSL_HAS_NISTP521 # define KEX_ECDH_METHODS \ "ecdh-sha2-nistp256," \ "ecdh-sha2-nistp384," \ @@ -40,20 +43,45 @@ "ecdsa-sha2-nistp384," \ "ecdsa-sha2-nistp521," #else +# define KEX_ECDH_METHODS \ + "ecdh-sha2-nistp256," \ + "ecdh-sha2-nistp384," +# define HOSTKEY_ECDSA_CERT_METHODS \ + "ecdsa-sha2-nistp256-cert-v01@openssh.com," \ + "ecdsa-sha2-nistp384-cert-v01@openssh.com," +# define HOSTKEY_ECDSA_METHODS \ + "ecdsa-sha2-nistp256," \ + "ecdsa-sha2-nistp384," +#endif +#else # define KEX_ECDH_METHODS # define HOSTKEY_ECDSA_CERT_METHODS # define HOSTKEY_ECDSA_METHODS #endif -/* Old OpenSSL doesn't support what we need for DHGEX-sha256 */ -#if OPENSSL_VERSION_NUMBER >= 0x00907000L +#ifdef OPENSSL_HAVE_EVPGCM +# define AESGCM_CIPHER_MODES \ + "aes128-gcm@openssh.com,aes256-gcm@openssh.com," +#else +# define AESGCM_CIPHER_MODES +#endif + +#ifdef HAVE_EVP_SHA256 # define KEX_SHA256_METHODS \ "diffie-hellman-group-exchange-sha256," +#define KEX_CURVE25519_METHODS \ + "curve25519-sha256@libssh.org," +#define SHA2_HMAC_MODES \ + "hmac-sha2-256," \ + "hmac-sha2-512," #else # define KEX_SHA256_METHODS +# define KEX_CURVE25519_METHODS +# define SHA2_HMAC_MODES #endif # define KEX_DEFAULT_KEX \ + KEX_CURVE25519_METHODS \ KEX_ECDH_METHODS \ KEX_SHA256_METHODS \ "diffie-hellman-group-exchange-sha1," \ @@ -62,32 +90,40 @@ #define KEX_DEFAULT_PK_ALG \ HOSTKEY_ECDSA_CERT_METHODS \ + "ssh-ed25519-cert-v01@openssh.com," \ "ssh-rsa-cert-v01@openssh.com," \ "ssh-dss-cert-v01@openssh.com," \ "ssh-rsa-cert-v00@openssh.com," \ "ssh-dss-cert-v00@openssh.com," \ HOSTKEY_ECDSA_METHODS \ + "ssh-ed25519," \ "ssh-rsa," \ "ssh-dss" +/* the actual algorithms */ + #define KEX_DEFAULT_ENCRYPT \ "aes128-ctr,aes192-ctr,aes256-ctr," \ "arcfour256,arcfour128," \ + AESGCM_CIPHER_MODES \ + "chacha20-poly1305@openssh.com," \ "aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc," \ "aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se" -#ifdef HAVE_EVP_SHA256 -#define SHA2_HMAC_MODES \ - "hmac-sha2-256," \ - "hmac-sha2-256-96," \ - "hmac-sha2-512," \ - "hmac-sha2-512-96," -#else -# define SHA2_HMAC_MODES -#endif + #define KEX_DEFAULT_MAC \ + "hmac-md5-etm@openssh.com," \ + "hmac-sha1-etm@openssh.com," \ + "umac-64-etm@openssh.com," \ + "umac-128-etm@openssh.com," \ + "hmac-sha2-256-etm@openssh.com," \ + "hmac-sha2-512-etm@openssh.com," \ + "hmac-ripemd160-etm@openssh.com," \ + "hmac-sha1-96-etm@openssh.com," \ + "hmac-md5-96-etm@openssh.com," \ "hmac-md5," \ "hmac-sha1," \ "umac-64@openssh.com," \ + "umac-128@openssh.com," \ SHA2_HMAC_MODES \ "hmac-ripemd160," \ "hmac-ripemd160@openssh.com," \ diff --git a/openbsd-compat/Makefile.in b/openbsd-compat/Makefile.in index 196a81d1..276646fa 100644 --- a/openbsd-compat/Makefile.in +++ b/openbsd-compat/Makefile.in @@ -1,4 +1,4 @@ -# $Id: Makefile.in,v 1.48 2011/11/04 00:25:25 dtucker Exp $ +# $Id: Makefile.in,v 1.54 2013/12/07 01:37:54 djm Exp $ sysconfdir=@sysconfdir@ piddir=@piddir@ @@ -16,9 +16,9 @@ RANLIB=@RANLIB@ INSTALL=@INSTALL@ LDFLAGS=-L. @LDFLAGS@ -OPENBSD=base64.o basename.o bindresvport.o daemon.o dirname.o fmt_scaled.o getcwd.o getgrouplist.o getopt.o getrrsetbyname.o glob.o inet_aton.o inet_ntoa.o inet_ntop.o mktemp.o pwcache.o readpassphrase.o realpath.o rresvport.o setenv.o setproctitle.o sha2.o sigact.o strlcat.o strlcpy.o strmode.o strnlen.o strptime.o strsep.o strtonum.o strtoll.o strtoul.o timingsafe_bcmp.o vis.o +OPENBSD=base64.o basename.o bcrypt_pbkdf.o bindresvport.o blowfish.o daemon.o dirname.o fmt_scaled.o getcwd.o getgrouplist.o getopt_long.o getrrsetbyname.o glob.o inet_aton.o inet_ntoa.o inet_ntop.o mktemp.o pwcache.o readpassphrase.o realpath.o rresvport.o setenv.o setproctitle.o sha2.o sigact.o strlcat.o strlcpy.o strmode.o strnlen.o strptime.o strsep.o strtonum.o strtoll.o strtoul.o strtoull.o timingsafe_bcmp.o vis.o blowfish.o bcrypt_pbkdf.o -COMPAT=bsd-arc4random.o bsd-asprintf.o bsd-closefrom.o bsd-cray.o bsd-cygwin_util.o bsd-getpeereid.o getrrsetbyname-ldns.o bsd-misc.o bsd-nextstep.o bsd-openpty.o bsd-poll.o bsd-snprintf.o bsd-statvfs.o bsd-waitpid.o fake-rfc2553.o openssl-compat.o xmmap.o xcrypt.o +COMPAT=arc4random.o bsd-asprintf.o bsd-closefrom.o bsd-cray.o bsd-cygwin_util.o bsd-getpeereid.o getrrsetbyname-ldns.o bsd-misc.o bsd-nextstep.o bsd-openpty.o bsd-poll.o bsd-setres_id.o bsd-snprintf.o bsd-statvfs.o bsd-waitpid.o fake-rfc2553.o openssl-compat.o xmmap.o xcrypt.o PORTS=port-aix.o port-irix.o port-linux.o port-solaris.o port-tun.o port-uw.o diff --git a/openbsd-compat/arc4random.c b/openbsd-compat/arc4random.c new file mode 100644 index 00000000..eac073cc --- /dev/null +++ b/openbsd-compat/arc4random.c @@ -0,0 +1,294 @@ +/* OPENBSD ORIGINAL: lib/libc/crypto/arc4random.c */ + +/* $OpenBSD: arc4random.c,v 1.25 2013/10/01 18:34:57 markus Exp $ */ + +/* + * Copyright (c) 1996, David Mazieres <dm@uun.org> + * Copyright (c) 2008, Damien Miller <djm@openbsd.org> + * Copyright (c) 2013, Markus Friedl <markus@openbsd.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * ChaCha based random number generator for OpenBSD. + */ + +#include "includes.h" + +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> + +#ifndef HAVE_ARC4RANDOM + +#include <openssl/rand.h> +#include <openssl/err.h> + +#include "log.h" + +#define KEYSTREAM_ONLY +#include "chacha_private.h" + +#ifdef __GNUC__ +#define inline __inline +#else /* !__GNUC__ */ +#define inline +#endif /* !__GNUC__ */ + +/* OpenSSH isn't multithreaded */ +#define _ARC4_LOCK() +#define _ARC4_UNLOCK() + +#define KEYSZ 32 +#define IVSZ 8 +#define BLOCKSZ 64 +#define RSBUFSZ (16*BLOCKSZ) +static int rs_initialized; +static pid_t rs_stir_pid; +static chacha_ctx rs; /* chacha context for random keystream */ +static u_char rs_buf[RSBUFSZ]; /* keystream blocks */ +static size_t rs_have; /* valid bytes at end of rs_buf */ +static size_t rs_count; /* bytes till reseed */ + +static inline void _rs_rekey(u_char *dat, size_t datlen); + +static inline void +_rs_init(u_char *buf, size_t n) +{ + if (n < KEYSZ + IVSZ) + return; + chacha_keysetup(&rs, buf, KEYSZ * 8, 0); + chacha_ivsetup(&rs, buf + KEYSZ); +} + +static void +_rs_stir(void) +{ + u_char rnd[KEYSZ + IVSZ]; + + if (RAND_bytes(rnd, sizeof(rnd)) <= 0) + fatal("Couldn't obtain random bytes (error %ld)", + ERR_get_error()); + + if (!rs_initialized) { + rs_initialized = 1; + _rs_init(rnd, sizeof(rnd)); + } else + _rs_rekey(rnd, sizeof(rnd)); + memset(rnd, 0, sizeof(rnd)); + + /* invalidate rs_buf */ + rs_have = 0; + memset(rs_buf, 0, RSBUFSZ); + + rs_count = 1600000; +} + +static inline void +_rs_stir_if_needed(size_t len) +{ + pid_t pid = getpid(); + + if (rs_count <= len || !rs_initialized || rs_stir_pid != pid) { + rs_stir_pid = pid; + _rs_stir(); + } else + rs_count -= len; +} + +static inline void +_rs_rekey(u_char *dat, size_t datlen) +{ +#ifndef KEYSTREAM_ONLY + memset(rs_buf, 0,RSBUFSZ); +#endif + /* fill rs_buf with the keystream */ + chacha_encrypt_bytes(&rs, rs_buf, rs_buf, RSBUFSZ); + /* mix in optional user provided data */ + if (dat) { + size_t i, m; + + m = MIN(datlen, KEYSZ + IVSZ); + for (i = 0; i < m; i++) + rs_buf[i] ^= dat[i]; + } + /* immediately reinit for backtracking resistance */ + _rs_init(rs_buf, KEYSZ + IVSZ); + memset(rs_buf, 0, KEYSZ + IVSZ); + rs_have = RSBUFSZ - KEYSZ - IVSZ; +} + +static inline void +_rs_random_buf(void *_buf, size_t n) +{ + u_char *buf = (u_char *)_buf; + size_t m; + + _rs_stir_if_needed(n); + while (n > 0) { + if (rs_have > 0) { + m = MIN(n, rs_have); + memcpy(buf, rs_buf + RSBUFSZ - rs_have, m); + memset(rs_buf + RSBUFSZ - rs_have, 0, m); + buf += m; + n -= m; + rs_have -= m; + } + if (rs_have == 0) + _rs_rekey(NULL, 0); + } +} + +static inline void +_rs_random_u32(u_int32_t *val) +{ + _rs_stir_if_needed(sizeof(*val)); + if (rs_have < sizeof(*val)) + _rs_rekey(NULL, 0); + memcpy(val, rs_buf + RSBUFSZ - rs_have, sizeof(*val)); + memset(rs_buf + RSBUFSZ - rs_have, 0, sizeof(*val)); + rs_have -= sizeof(*val); + return; +} + +void +arc4random_stir(void) +{ + _ARC4_LOCK(); + _rs_stir(); + _ARC4_UNLOCK(); +} + +void +arc4random_addrandom(u_char *dat, int datlen) +{ + int m; + + _ARC4_LOCK(); + if (!rs_initialized) + _rs_stir(); + while (datlen > 0) { + m = MIN(datlen, KEYSZ + IVSZ); + _rs_rekey(dat, m); + dat += m; + datlen -= m; + } + _ARC4_UNLOCK(); +} + +u_int32_t +arc4random(void) +{ + u_int32_t val; + + _ARC4_LOCK(); + _rs_random_u32(&val); + _ARC4_UNLOCK(); + return val; +} + +/* + * If we are providing arc4random, then we can provide a more efficient + * arc4random_buf(). + */ +# ifndef HAVE_ARC4RANDOM_BUF +void +arc4random_buf(void *buf, size_t n) +{ + _ARC4_LOCK(); + _rs_random_buf(buf, n); + _ARC4_UNLOCK(); +} +# endif /* !HAVE_ARC4RANDOM_BUF */ +#endif /* !HAVE_ARC4RANDOM */ + +/* arc4random_buf() that uses platform arc4random() */ +#if !defined(HAVE_ARC4RANDOM_BUF) && defined(HAVE_ARC4RANDOM) +void +arc4random_buf(void *_buf, size_t n) +{ + size_t i; + u_int32_t r = 0; + char *buf = (char *)_buf; + + for (i = 0; i < n; i++) { + if (i % 4 == 0) + r = arc4random(); + buf[i] = r & 0xff; + r >>= 8; + } + i = r = 0; +} +#endif /* !defined(HAVE_ARC4RANDOM_BUF) && defined(HAVE_ARC4RANDOM) */ + +#ifndef HAVE_ARC4RANDOM_UNIFORM +/* + * Calculate a uniformly distributed random number less than upper_bound + * avoiding "modulo bias". + * + * Uniformity is achieved by generating new random numbers until the one + * returned is outside the range [0, 2**32 % upper_bound). This + * guarantees the selected random number will be inside + * [2**32 % upper_bound, 2**32) which maps back to [0, upper_bound) + * after reduction modulo upper_bound. + */ +u_int32_t +arc4random_uniform(u_int32_t upper_bound) +{ + u_int32_t r, min; + + if (upper_bound < 2) + return 0; + + /* 2**32 % x == (2**32 - x) % x */ + min = -upper_bound % upper_bound; + + /* + * This could theoretically loop forever but each retry has + * p > 0.5 (worst case, usually far better) of selecting a + * number inside the range we need, so it should rarely need + * to re-roll. + */ + for (;;) { + r = arc4random(); + if (r >= min) + break; + } + + return r % upper_bound; +} +#endif /* !HAVE_ARC4RANDOM_UNIFORM */ + +#if 0 +/*-------- Test code for i386 --------*/ +#include <stdio.h> +#include <machine/pctr.h> +int +main(int argc, char **argv) +{ + const int iter = 1000000; + int i; + pctrval v; + + v = rdtsc(); + for (i = 0; i < iter; i++) + arc4random(); + v = rdtsc() - v; + v /= iter; + + printf("%qd cycles\n", v); + exit(0); +} +#endif diff --git a/openbsd-compat/bcrypt_pbkdf.c b/openbsd-compat/bcrypt_pbkdf.c new file mode 100644 index 00000000..91b6ba07 --- /dev/null +++ b/openbsd-compat/bcrypt_pbkdf.c @@ -0,0 +1,170 @@ +/* $OpenBSD: bcrypt_pbkdf.c,v 1.4 2013/07/29 00:55:53 tedu Exp $ */ +/* + * Copyright (c) 2013 Ted Unangst <tedu@openbsd.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "includes.h" + +#ifndef HAVE_BCRYPT_PBKDF + +#include <sys/types.h> +#include <sys/param.h> + +#ifdef HAVE_STDLIB_H +# include <stdlib.h> +#endif +#include <string.h> + +#ifdef HAVE_BLF_H +# include <blf.h> +#endif + +#include "crypto_api.h" +#define SHA512_DIGEST_LENGTH crypto_hash_sha512_BYTES + +/* + * pkcs #5 pbkdf2 implementation using the "bcrypt" hash + * + * The bcrypt hash function is derived from the bcrypt password hashing + * function with the following modifications: + * 1. The input password and salt are preprocessed with SHA512. + * 2. The output length is expanded to 256 bits. + * 3. Subsequently the magic string to be encrypted is lengthened and modifed + * to "OxychromaticBlowfishSwatDynamite" + * 4. The hash function is defined to perform 64 rounds of initial state + * expansion. (More rounds are performed by iterating the hash.) + * + * Note that this implementation pulls the SHA512 operations into the caller + * as a performance optimization. + * + * One modification from official pbkdf2. Instead of outputting key material + * linearly, we mix it. pbkdf2 has a known weakness where if one uses it to + * generate (i.e.) 512 bits of key material for use as two 256 bit keys, an + * attacker can merely run once through the outer loop below, but the user + * always runs it twice. Shuffling output bytes requires computing the + * entirety of the key material to assemble any subkey. This is something a + * wise caller could do; we just do it for you. + */ + +#define BCRYPT_BLOCKS 8 +#define BCRYPT_HASHSIZE (BCRYPT_BLOCKS * 4) + +static void +bcrypt_hash(u_int8_t *sha2pass, u_int8_t *sha2salt, u_int8_t *out) +{ + blf_ctx state; + u_int8_t ciphertext[BCRYPT_HASHSIZE] = + "OxychromaticBlowfishSwatDynamite"; + uint32_t cdata[BCRYPT_BLOCKS]; + int i; + uint16_t j; + size_t shalen = SHA512_DIGEST_LENGTH; + + /* key expansion */ + Blowfish_initstate(&state); + Blowfish_expandstate(&state, sha2salt, shalen, sha2pass, shalen); + for (i = 0; i < 64; i++) { + Blowfish_expand0state(&state, sha2salt, shalen); + Blowfish_expand0state(&state, sha2pass, shalen); + } + + /* encryption */ + j = 0; + for (i = 0; i < BCRYPT_BLOCKS; i++) + cdata[i] = Blowfish_stream2word(ciphertext, sizeof(ciphertext), + &j); + for (i = 0; i < 64; i++) + blf_enc(&state, cdata, sizeof(cdata) / sizeof(uint64_t)); + + /* copy out */ + for (i = 0; i < BCRYPT_BLOCKS; i++) { + out[4 * i + 3] = (cdata[i] >> 24) & 0xff; + out[4 * i + 2] = (cdata[i] >> 16) & 0xff; + out[4 * i + 1] = (cdata[i] >> 8) & 0xff; + out[4 * i + 0] = cdata[i] & 0xff; + } + + /* zap */ + memset(ciphertext, 0, sizeof(ciphertext)); + memset(cdata, 0, sizeof(cdata)); + memset(&state, 0, sizeof(state)); +} + +int +bcrypt_pbkdf(const char *pass, size_t passlen, const u_int8_t *salt, size_t saltlen, + u_int8_t *key, size_t keylen, unsigned int rounds) +{ + u_int8_t sha2pass[SHA512_DIGEST_LENGTH]; + u_int8_t sha2salt[SHA512_DIGEST_LENGTH]; + u_int8_t out[BCRYPT_HASHSIZE]; + u_int8_t tmpout[BCRYPT_HASHSIZE]; + u_int8_t *countsalt; + size_t i, j, amt, stride; + uint32_t count; + + /* nothing crazy */ + if (rounds < 1) + return -1; + if (passlen == 0 || saltlen == 0 || keylen == 0 || + keylen > sizeof(out) * sizeof(out) || saltlen > 1<<20) + return -1; + if ((countsalt = calloc(1, saltlen + 4)) == NULL) + return -1; + stride = (keylen + sizeof(out) - 1) / sizeof(out); + amt = (keylen + stride - 1) / stride; + + memcpy(countsalt, salt, saltlen); + + /* collapse password */ + crypto_hash_sha512(sha2pass, pass, passlen); + + /* generate key, sizeof(out) at a time */ + for (count = 1; keylen > 0; count++) { + countsalt[saltlen + 0] = (count >> 24) & 0xff; + countsalt[saltlen + 1] = (count >> 16) & 0xff; + countsalt[saltlen + 2] = (count >> 8) & 0xff; + countsalt[saltlen + 3] = count & 0xff; + + /* first round, salt is salt */ + crypto_hash_sha512(sha2salt, countsalt, saltlen + 4); + + bcrypt_hash(sha2pass, sha2salt, tmpout); + memcpy(out, tmpout, sizeof(out)); + + for (i = 1; i < rounds; i++) { + /* subsequent rounds, salt is previous output */ + crypto_hash_sha512(sha2salt, tmpout, sizeof(tmpout)); + bcrypt_hash(sha2pass, sha2salt, tmpout); + for (j = 0; j < sizeof(out); j++) + out[j] ^= tmpout[j]; + } + + /* + * pbkdf2 deviation: ouput the key material non-linearly. + */ + amt = MIN(amt, keylen); + for (i = 0; i < amt; i++) + key[i * stride + (count - 1)] = out[i]; + keylen -= amt; + } + + /* zap */ + memset(out, 0, sizeof(out)); + memset(countsalt, 0, saltlen + 4); + free(countsalt); + + return 0; +} +#endif /* HAVE_BCRYPT_PBKDF */ diff --git a/openbsd-compat/blf.h b/openbsd-compat/blf.h new file mode 100644 index 00000000..f1ac5a5c --- /dev/null +++ b/openbsd-compat/blf.h @@ -0,0 +1,88 @@ +/* $OpenBSD: blf.h,v 1.7 2007/03/14 17:59:41 grunk Exp $ */ +/* + * Blowfish - a fast block cipher designed by Bruce Schneier + * + * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Niels Provos. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _BLF_H_ +#define _BLF_H_ + +#include "includes.h" + +#if !defined(HAVE_BCRYPT_PBKDF) && !defined(HAVE_BLH_H) + +/* Schneier specifies a maximum key length of 56 bytes. + * This ensures that every key bit affects every cipher + * bit. However, the subkeys can hold up to 72 bytes. + * Warning: For normal blowfish encryption only 56 bytes + * of the key affect all cipherbits. + */ + +#define BLF_N 16 /* Number of Subkeys */ +#define BLF_MAXKEYLEN ((BLF_N-2)*4) /* 448 bits */ +#define BLF_MAXUTILIZED ((BLF_N+2)*4) /* 576 bits */ + +/* Blowfish context */ +typedef struct BlowfishContext { + u_int32_t S[4][256]; /* S-Boxes */ + u_int32_t P[BLF_N + 2]; /* Subkeys */ +} blf_ctx; + +/* Raw access to customized Blowfish + * blf_key is just: + * Blowfish_initstate( state ) + * Blowfish_expand0state( state, key, keylen ) + */ + +void Blowfish_encipher(blf_ctx *, u_int32_t *, u_int32_t *); +void Blowfish_decipher(blf_ctx *, u_int32_t *, u_int32_t *); +void Blowfish_initstate(blf_ctx *); +void Blowfish_expand0state(blf_ctx *, const u_int8_t *, u_int16_t); +void Blowfish_expandstate +(blf_ctx *, const u_int8_t *, u_int16_t, const u_int8_t *, u_int16_t); + +/* Standard Blowfish */ + +void blf_key(blf_ctx *, const u_int8_t *, u_int16_t); +void blf_enc(blf_ctx *, u_int32_t *, u_int16_t); +void blf_dec(blf_ctx *, u_int32_t *, u_int16_t); + +void blf_ecb_encrypt(blf_ctx *, u_int8_t *, u_int32_t); +void blf_ecb_decrypt(blf_ctx *, u_int8_t *, u_int32_t); + +void blf_cbc_encrypt(blf_ctx *, u_int8_t *, u_int8_t *, u_int32_t); +void blf_cbc_decrypt(blf_ctx *, u_int8_t *, u_int8_t *, u_int32_t); + +/* Converts u_int8_t to u_int32_t */ +u_int32_t Blowfish_stream2word(const u_int8_t *, u_int16_t , u_int16_t *); + +#endif /* !defined(HAVE_BCRYPT_PBKDF) && !defined(HAVE_BLH_H) */ +#endif /* _BLF_H */ + diff --git a/openbsd-compat/blowfish.c b/openbsd-compat/blowfish.c new file mode 100644 index 00000000..6c419549 --- /dev/null +++ b/openbsd-compat/blowfish.c @@ -0,0 +1,694 @@ +/* $OpenBSD: blowfish.c,v 1.18 2004/11/02 17:23:26 hshoexer Exp $ */ +/* + * Blowfish block cipher for OpenBSD + * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de> + * All rights reserved. + * + * Implementation advice by David Mazieres <dm@lcs.mit.edu>. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Niels Provos. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * This code is derived from section 14.3 and the given source + * in section V of Applied Cryptography, second edition. + * Blowfish is an unpatented fast block cipher designed by + * Bruce Schneier. + */ + +#include "includes.h" + +#if !defined(HAVE_BCRYPT_PBKDF) && (!defined(HAVE_BLOWFISH_INITSTATE) || \ + !defined(HAVE_BLOWFISH_EXPAND0STATE) || !defined(HAVE_BLF_ENC)) + +#if 0 +#include <stdio.h> /* used for debugging */ +#include <string.h> +#endif + +#include <sys/types.h> +#include <blf.h> + +#undef inline +#ifdef __GNUC__ +#define inline __inline +#else /* !__GNUC__ */ +#define inline +#endif /* !__GNUC__ */ + +/* Function for Feistel Networks */ + +#define F(s, x) ((((s)[ (((x)>>24)&0xFF)] \ + + (s)[0x100 + (((x)>>16)&0xFF)]) \ + ^ (s)[0x200 + (((x)>> 8)&0xFF)]) \ + + (s)[0x300 + ( (x) &0xFF)]) + +#define BLFRND(s,p,i,j,n) (i ^= F(s,j) ^ (p)[n]) + +void +Blowfish_encipher(blf_ctx *c, u_int32_t *xl, u_int32_t *xr) +{ + u_int32_t Xl; + u_int32_t Xr; + u_int32_t *s = c->S[0]; + u_int32_t *p = c->P; + + Xl = *xl; + Xr = *xr; + + Xl ^= p[0]; + BLFRND(s, p, Xr, Xl, 1); BLFRND(s, p, Xl, Xr, 2); + BLFRND(s, p, Xr, Xl, 3); BLFRND(s, p, Xl, Xr, 4); + BLFRND(s, p, Xr, Xl, 5); BLFRND(s, p, Xl, Xr, 6); + BLFRND(s, p, Xr, Xl, 7); BLFRND(s, p, Xl, Xr, 8); + BLFRND(s, p, Xr, Xl, 9); BLFRND(s, p, Xl, Xr, 10); + BLFRND(s, p, Xr, Xl, 11); BLFRND(s, p, Xl, Xr, 12); + BLFRND(s, p, Xr, Xl, 13); BLFRND(s, p, Xl, Xr, 14); + BLFRND(s, p, Xr, Xl, 15); BLFRND(s, p, Xl, Xr, 16); + + *xl = Xr ^ p[17]; + *xr = Xl; +} + +void +Blowfish_decipher(blf_ctx *c, u_int32_t *xl, u_int32_t *xr) +{ + u_int32_t Xl; + u_int32_t Xr; + u_int32_t *s = c->S[0]; + u_int32_t *p = c->P; + + Xl = *xl; + Xr = *xr; + + Xl ^= p[17]; + BLFRND(s, p, Xr, Xl, 16); BLFRND(s, p, Xl, Xr, 15); + BLFRND(s, p, Xr, Xl, 14); BLFRND(s, p, Xl, Xr, 13); + BLFRND(s, p, Xr, Xl, 12); BLFRND(s, p, Xl, Xr, 11); + BLFRND(s, p, Xr, Xl, 10); BLFRND(s, p, Xl, Xr, 9); + BLFRND(s, p, Xr, Xl, 8); BLFRND(s, p, Xl, Xr, 7); + BLFRND(s, p, Xr, Xl, 6); BLFRND(s, p, Xl, Xr, 5); + BLFRND(s, p, Xr, Xl, 4); BLFRND(s, p, Xl, Xr, 3); + BLFRND(s, p, Xr, Xl, 2); BLFRND(s, p, Xl, Xr, 1); + + *xl = Xr ^ p[0]; + *xr = Xl; +} + +void +Blowfish_initstate(blf_ctx *c) +{ + /* P-box and S-box tables initialized with digits of Pi */ + + static const blf_ctx initstate = + { { + { + 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, + 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, + 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, + 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, + 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, + 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, + 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, + 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, + 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, + 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, + 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, + 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, + 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, + 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, + 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, + 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, + 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, + 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, + 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, + 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, + 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, + 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, + 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, + 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, + 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, + 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, + 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, + 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, + 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, + 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, + 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, + 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, + 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, + 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, + 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, + 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, + 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, + 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, + 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, + 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, + 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, + 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, + 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, + 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, + 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, + 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, + 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, + 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, + 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, + 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, + 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, + 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, + 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, + 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, + 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, + 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, + 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, + 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, + 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, + 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, + 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, + 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, + 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, + 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a}, + { + 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, + 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, + 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, + 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, + 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, + 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, + 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, + 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, + 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, + 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, + 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, + 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, + 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, + 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, + 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, + 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, + 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, + 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, + 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, + 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, + 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, + 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, + 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, + 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, + 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, + 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, + 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, + 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, + 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, + 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, + 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, + 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, + 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, + 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, + 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, + 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, + 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, + 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, + 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, + 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, + 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, + 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, + 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, + 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, + 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, + 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, + 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, + 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, + 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, + 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, + 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, + 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, + 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, + 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, + 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, + 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, + 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, + 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, + 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, + 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, + 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, + 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, + 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, + 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7}, + { + 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, + 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, + 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, + 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, + 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, + 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, + 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, + 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, + 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, + 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, + 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, + 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, + 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, + 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, + 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, + 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, + 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, + 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, + 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, + 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, + 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, + 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, + 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, + 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, + 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, + 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, + 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, + 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, + 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, + 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, + 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, + 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, + 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, + 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, + 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, + 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, + 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, + 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, + 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, + 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, + 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, + 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, + 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, + 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, + 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, + 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, + 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, + 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, + 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, + 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, + 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, + 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, + 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, + 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, + 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, + 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, + 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, + 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, + 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, + 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, + 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, + 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, + 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, + 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0}, + { + 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, + 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, + 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, + 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, + 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, + 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, + 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, + 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, + 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, + 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, + 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, + 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, + 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, + 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, + 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, + 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, + 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, + 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, + 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, + 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, + 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, + 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, + 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, + 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, + 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, + 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, + 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, + 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, + 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, + 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, + 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, + 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, + 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, + 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, + 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, + 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, + 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, + 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, + 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, + 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, + 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, + 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, + 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, + 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, + 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, + 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, + 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, + 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, + 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, + 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, + 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, + 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, + 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, + 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, + 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, + 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, + 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, + 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, + 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, + 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, + 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, + 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, + 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, + 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6} + }, + { + 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, + 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, + 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, + 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, + 0x9216d5d9, 0x8979fb1b + } }; + + *c = initstate; +} + +u_int32_t +Blowfish_stream2word(const u_int8_t *data, u_int16_t databytes, + u_int16_t *current) +{ + u_int8_t i; + u_int16_t j; + u_int32_t temp; + + temp = 0x00000000; + j = *current; + + for (i = 0; i < 4; i++, j++) { + if (j >= databytes) + j = 0; + temp = (temp << 8) | data[j]; + } + + *current = j; + return temp; +} + +void +Blowfish_expand0state(blf_ctx *c, const u_int8_t *key, u_int16_t keybytes) +{ + u_int16_t i; + u_int16_t j; + u_int16_t k; + u_int32_t temp; + u_int32_t datal; + u_int32_t datar; + + j = 0; + for (i = 0; i < BLF_N + 2; i++) { + /* Extract 4 int8 to 1 int32 from keystream */ + temp = Blowfish_stream2word(key, keybytes, &j); + c->P[i] = c->P[i] ^ temp; + } + + j = 0; + datal = 0x00000000; + datar = 0x00000000; + for (i = 0; i < BLF_N + 2; i += 2) { + Blowfish_encipher(c, &datal, &datar); + + c->P[i] = datal; + c->P[i + 1] = datar; + } + + for (i = 0; i < 4; i++) { + for (k = 0; k < 256; k += 2) { + Blowfish_encipher(c, &datal, &datar); + + c->S[i][k] = datal; + c->S[i][k + 1] = datar; + } + } +} + + +void +Blowfish_expandstate(blf_ctx *c, const u_int8_t *data, u_int16_t databytes, + const u_int8_t *key, u_int16_t keybytes) +{ + u_int16_t i; + u_int16_t j; + u_int16_t k; + u_int32_t temp; + u_int32_t datal; + u_int32_t datar; + + j = 0; + for (i = 0; i < BLF_N + 2; i++) { + /* Extract 4 int8 to 1 int32 from keystream */ + temp = Blowfish_stream2word(key, keybytes, &j); + c->P[i] = c->P[i] ^ temp; + } + + j = 0; + datal = 0x00000000; + datar = 0x00000000; + for (i = 0; i < BLF_N + 2; i += 2) { + datal ^= Blowfish_stream2word(data, databytes, &j); + datar ^= Blowfish_stream2word(data, databytes, &j); + Blowfish_encipher(c, &datal, &datar); + + c->P[i] = datal; + c->P[i + 1] = datar; + } + + for (i = 0; i < 4; i++) { + for (k = 0; k < 256; k += 2) { + datal ^= Blowfish_stream2word(data, databytes, &j); + datar ^= Blowfish_stream2word(data, databytes, &j); + Blowfish_encipher(c, &datal, &datar); + + c->S[i][k] = datal; + c->S[i][k + 1] = datar; + } + } + +} + +void +blf_key(blf_ctx *c, const u_int8_t *k, u_int16_t len) +{ + /* Initialize S-boxes and subkeys with Pi */ + Blowfish_initstate(c); + + /* Transform S-boxes and subkeys with key */ + Blowfish_expand0state(c, k, len); +} + +void +blf_enc(blf_ctx *c, u_int32_t *data, u_int16_t blocks) +{ + u_int32_t *d; + u_int16_t i; + + d = data; + for (i = 0; i < blocks; i++) { + Blowfish_encipher(c, d, d + 1); + d += 2; + } +} + +void +blf_dec(blf_ctx *c, u_int32_t *data, u_int16_t blocks) +{ + u_int32_t *d; + u_int16_t i; + + d = data; + for (i = 0; i < blocks; i++) { + Blowfish_decipher(c, d, d + 1); + d += 2; + } +} + +void +blf_ecb_encrypt(blf_ctx *c, u_int8_t *data, u_int32_t len) +{ + u_int32_t l, r; + u_int32_t i; + + for (i = 0; i < len; i += 8) { + l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3]; + r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]; + Blowfish_encipher(c, &l, &r); + data[0] = l >> 24 & 0xff; + data[1] = l >> 16 & 0xff; + data[2] = l >> 8 & 0xff; + data[3] = l & 0xff; + data[4] = r >> 24 & 0xff; + data[5] = r >> 16 & 0xff; + data[6] = r >> 8 & 0xff; + data[7] = r & 0xff; + data += 8; + } +} + +void +blf_ecb_decrypt(blf_ctx *c, u_int8_t *data, u_int32_t len) +{ + u_int32_t l, r; + u_int32_t i; + + for (i = 0; i < len; i += 8) { + l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3]; + r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]; + Blowfish_decipher(c, &l, &r); + data[0] = l >> 24 & 0xff; + data[1] = l >> 16 & 0xff; + data[2] = l >> 8 & 0xff; + data[3] = l & 0xff; + data[4] = r >> 24 & 0xff; + data[5] = r >> 16 & 0xff; + data[6] = r >> 8 & 0xff; + data[7] = r & 0xff; + data += 8; + } +} + +void +blf_cbc_encrypt(blf_ctx *c, u_int8_t *iv, u_int8_t *data, u_int32_t len) +{ + u_int32_t l, r; + u_int32_t i, j; + + for (i = 0; i < len; i += 8) { + for (j = 0; j < 8; j++) + data[j] ^= iv[j]; + l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3]; + r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]; + Blowfish_encipher(c, &l, &r); + data[0] = l >> 24 & 0xff; + data[1] = l >> 16 & 0xff; + data[2] = l >> 8 & 0xff; + data[3] = l & 0xff; + data[4] = r >> 24 & 0xff; + data[5] = r >> 16 & 0xff; + data[6] = r >> 8 & 0xff; + data[7] = r & 0xff; + iv = data; + data += 8; + } +} + +void +blf_cbc_decrypt(blf_ctx *c, u_int8_t *iva, u_int8_t *data, u_int32_t len) +{ + u_int32_t l, r; + u_int8_t *iv; + u_int32_t i, j; + + iv = data + len - 16; + data = data + len - 8; + for (i = len - 8; i >= 8; i -= 8) { + l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3]; + r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]; + Blowfish_decipher(c, &l, &r); + data[0] = l >> 24 & 0xff; + data[1] = l >> 16 & 0xff; + data[2] = l >> 8 & 0xff; + data[3] = l & 0xff; + data[4] = r >> 24 & 0xff; + data[5] = r >> 16 & 0xff; + data[6] = r >> 8 & 0xff; + data[7] = r & 0xff; + for (j = 0; j < 8; j++) + data[j] ^= iv[j]; + iv -= 8; + data -= 8; + } + l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3]; + r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]; + Blowfish_decipher(c, &l, &r); + data[0] = l >> 24 & 0xff; + data[1] = l >> 16 & 0xff; + data[2] = l >> 8 & 0xff; + data[3] = l & 0xff; + data[4] = r >> 24 & 0xff; + data[5] = r >> 16 & 0xff; + data[6] = r >> 8 & 0xff; + data[7] = r & 0xff; + for (j = 0; j < 8; j++) + data[j] ^= iva[j]; +} + +#if 0 +void +report(u_int32_t data[], u_int16_t len) +{ + u_int16_t i; + for (i = 0; i < len; i += 2) + printf("Block %0hd: %08lx %08lx.\n", + i / 2, data[i], data[i + 1]); +} +void +main(void) +{ + + blf_ctx c; + char key[] = "AAAAA"; + char key2[] = "abcdefghijklmnopqrstuvwxyz"; + + u_int32_t data[10]; + u_int32_t data2[] = + {0x424c4f57l, 0x46495348l}; + + u_int16_t i; + + /* First test */ + for (i = 0; i < 10; i++) + data[i] = i; + + blf_key(&c, (u_int8_t *) key, 5); + blf_enc(&c, data, 5); + blf_dec(&c, data, 1); + blf_dec(&c, data + 2, 4); + printf("Should read as 0 - 9.\n"); + report(data, 10); + + /* Second test */ + blf_key(&c, (u_int8_t *) key2, strlen(key2)); + blf_enc(&c, data2, 1); + printf("\nShould read as: 0x324ed0fe 0xf413a203.\n"); + report(data2, 2); + blf_dec(&c, data2, 1); + report(data2, 2); +} +#endif + +#endif /* !defined(HAVE_BCRYPT_PBKDF) && (!defined(HAVE_BLOWFISH_INITSTATE) || \ + !defined(HAVE_BLOWFISH_EXPAND0STATE) || !defined(HAVE_BLF_ENC)) */ + diff --git a/openbsd-compat/bsd-arc4random.c b/openbsd-compat/bsd-arc4random.c deleted file mode 100644 index d7c58625..00000000 --- a/openbsd-compat/bsd-arc4random.c +++ /dev/null @@ -1,150 +0,0 @@ -/* - * Copyright (c) 1999,2000,2004 Damien Miller <djm@mindrot.org> - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include "includes.h" - -#include <sys/types.h> - -#include <string.h> -#include <stdlib.h> -#include <stdarg.h> - -#include "log.h" - -#ifndef HAVE_ARC4RANDOM - -#include <openssl/rand.h> -#include <openssl/rc4.h> -#include <openssl/err.h> - -/* Size of key to use */ -#define SEED_SIZE 20 - -/* Number of bytes to reseed after */ -#define REKEY_BYTES (1 << 24) - -static int rc4_ready = 0; -static RC4_KEY rc4; - -unsigned int -arc4random(void) -{ - unsigned int r = 0; - static int first_time = 1; - - if (rc4_ready <= 0) { - if (first_time) - seed_rng(); - first_time = 0; - arc4random_stir(); - } - - RC4(&rc4, sizeof(r), (unsigned char *)&r, (unsigned char *)&r); - - rc4_ready -= sizeof(r); - - return(r); -} - -void -arc4random_stir(void) -{ - unsigned char rand_buf[SEED_SIZE]; - int i; - - memset(&rc4, 0, sizeof(rc4)); - if (RAND_bytes(rand_buf, sizeof(rand_buf)) <= 0) - fatal("Couldn't obtain random bytes (error %ld)", - ERR_get_error()); - RC4_set_key(&rc4, sizeof(rand_buf), rand_buf); - - /* - * Discard early keystream, as per recommendations in: - * http://www.wisdom.weizmann.ac.il/~itsik/RC4/Papers/Rc4_ksa.ps - */ - for(i = 0; i <= 256; i += sizeof(rand_buf)) - RC4(&rc4, sizeof(rand_buf), rand_buf, rand_buf); - - memset(rand_buf, 0, sizeof(rand_buf)); - - rc4_ready = REKEY_BYTES; -} -#endif /* !HAVE_ARC4RANDOM */ - -#ifndef HAVE_ARC4RANDOM_BUF -void -arc4random_buf(void *_buf, size_t n) -{ - size_t i; - u_int32_t r = 0; - char *buf = (char *)_buf; - - for (i = 0; i < n; i++) { - if (i % 4 == 0) - r = arc4random(); - buf[i] = r & 0xff; - r >>= 8; - } - i = r = 0; -} -#endif /* !HAVE_ARC4RANDOM_BUF */ - -#ifndef HAVE_ARC4RANDOM_UNIFORM -/* - * Calculate a uniformly distributed random number less than upper_bound - * avoiding "modulo bias". - * - * Uniformity is achieved by generating new random numbers until the one - * returned is outside the range [0, 2**32 % upper_bound). This - * guarantees the selected random number will be inside - * [2**32 % upper_bound, 2**32) which maps back to [0, upper_bound) - * after reduction modulo upper_bound. - */ -u_int32_t -arc4random_uniform(u_int32_t upper_bound) -{ - u_int32_t r, min; - - if (upper_bound < 2) - return 0; - -#if (ULONG_MAX > 0xffffffffUL) - min = 0x100000000UL % upper_bound; -#else - /* Calculate (2**32 % upper_bound) avoiding 64-bit math */ - if (upper_bound > 0x80000000) - min = 1 + ~upper_bound; /* 2**32 - upper_bound */ - else { - /* (2**32 - (x * 2)) % x == 2**32 % x when x <= 2**31 */ - min = ((0xffffffff - (upper_bound * 2)) + 1) % upper_bound; - } -#endif - - /* - * This could theoretically loop forever but each retry has - * p > 0.5 (worst case, usually far better) of selecting a - * number inside the range we need, so it should rarely need - * to re-roll. - */ - for (;;) { - r = arc4random(); - if (r >= min) - break; - } - - return r % upper_bound; -} -#endif /* !HAVE_ARC4RANDOM_UNIFORM */ diff --git a/openbsd-compat/bsd-cygwin_util.c b/openbsd-compat/bsd-cygwin_util.c index 6befc016..267e77a1 100644 --- a/openbsd-compat/bsd-cygwin_util.c +++ b/openbsd-compat/bsd-cygwin_util.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000, 2001, 2011 Corinna Vinschen <vinschen@redhat.com> + * Copyright (c) 2000, 2001, 2011, 2013 Corinna Vinschen <vinschen@redhat.com> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -27,20 +27,15 @@ * binary mode on Windows systems. */ +#define NO_BINARY_OPEN /* Avoid redefining open to binary_open for this file */ #include "includes.h" #ifdef HAVE_CYGWIN -#if defined(open) && open == binary_open -# undef open -#endif - #include <sys/types.h> - #include <fcntl.h> -#include <stdlib.h> +#include <string.h> #include <unistd.h> -#include <windows.h> #include "xmalloc.h" @@ -102,7 +97,7 @@ fetch_windows_environment(void) void free_windows_environment(char **p) { - xfree(p); + free(p); } #endif /* HAVE_CYGWIN */ diff --git a/openbsd-compat/bsd-cygwin_util.h b/openbsd-compat/bsd-cygwin_util.h index 48f64b74..1177366f 100644 --- a/openbsd-compat/bsd-cygwin_util.h +++ b/openbsd-compat/bsd-cygwin_util.h @@ -1,7 +1,7 @@ -/* $Id: bsd-cygwin_util.h,v 1.13 2011/08/17 01:31:09 djm Exp $ */ +/* $Id: bsd-cygwin_util.h,v 1.17 2014/01/18 10:04:00 dtucker Exp $ */ /* - * Copyright (c) 2000, 2001, 2011 Corinna Vinschen <vinschen@redhat.com> + * Copyright (c) 2000, 2001, 2011, 2013 Corinna Vinschen <vinschen@redhat.com> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -36,16 +36,27 @@ #undef ERROR -#include <windows.h> +/* Avoid including windows headers. */ +typedef void *HANDLE; +#define INVALID_HANDLE_VALUE ((HANDLE) -1) + +/* Cygwin functions for which declarations are only available when including + windows headers, so we have to define them here explicitely. */ +extern HANDLE cygwin_logon_user (const struct passwd *, const char *); +extern void cygwin_set_impersonation_token (const HANDLE); + #include <sys/cygwin.h> #include <io.h> + int binary_open(const char *, int , ...); int check_ntsec(const char *); char **fetch_windows_environment(void); void free_windows_environment(char **); +#ifndef NO_BINARY_OPEN #define open binary_open +#endif #endif /* HAVE_CYGWIN */ diff --git a/openbsd-compat/bsd-misc.c b/openbsd-compat/bsd-misc.c index 3ef373f5..65e80039 100644 --- a/openbsd-compat/bsd-misc.c +++ b/openbsd-compat/bsd-misc.c @@ -28,6 +28,7 @@ #include <string.h> #include <signal.h> #include <stdlib.h> +#include <time.h> #include <unistd.h> #include "xmalloc.h" @@ -165,6 +166,17 @@ int nanosleep(const struct timespec *req, struct timespec *rem) } #endif +#if !defined(HAVE_USLEEP) +int usleep(unsigned int useconds) +{ + struct timespec ts; + + ts.tv_sec = useconds / 1000000; + ts.tv_nsec = (useconds % 1000000) * 1000; + return nanosleep(&ts, NULL); +} +#endif + #ifndef HAVE_TCGETPGRP pid_t tcgetpgrp(int fd) @@ -242,8 +254,25 @@ strdup(const char *str) #endif #ifndef HAVE_ISBLANK -int isblank(int c) +int +isblank(int c) { return (c == ' ' || c == '\t'); } #endif + +#ifndef HAVE_GETPGID +pid_t +getpgid(pid_t pid) +{ +#if defined(HAVE_GETPGRP) && !defined(GETPGRP_VOID) + return getpgrp(pid); +#elif defined(HAVE_GETPGRP) + if (pid == 0) + return getpgrp(); +#endif + + errno = ESRCH; + return -1; +} +#endif diff --git a/openbsd-compat/bsd-misc.h b/openbsd-compat/bsd-misc.h index e3717562..65c18ec2 100644 --- a/openbsd-compat/bsd-misc.h +++ b/openbsd-compat/bsd-misc.h @@ -1,4 +1,4 @@ -/* $Id: bsd-misc.h,v 1.20 2012/02/14 18:03:31 tim Exp $ */ +/* $Id: bsd-misc.h,v 1.25 2013/08/04 11:48:41 dtucker Exp $ */ /* * Copyright (c) 1999-2004 Damien Miller <djm@mindrot.org> @@ -51,6 +51,9 @@ int setegid(uid_t); const char *strerror(int); #endif +#if !defined(HAVE_SETLINEBUF) +#define setlinebuf(a) (setvbuf((a), NULL, _IOLBF, 0)) +#endif #ifndef HAVE_UTIMES #ifndef HAVE_STRUCT_TIMEVAL @@ -77,6 +80,10 @@ struct timespec { int nanosleep(const struct timespec *, struct timespec *); #endif +#ifndef HAVE_USLEEP +int usleep(unsigned int useconds); +#endif + #ifndef HAVE_TCGETPGRP pid_t tcgetpgrp(int); #endif @@ -99,4 +106,20 @@ mysig_t mysignal(int sig, mysig_t act); int isblank(int); #endif +#ifndef HAVE_GETPGID +pid_t getpgid(pid_t); +#endif + +#ifndef HAVE_ENDGRENT +# define endgrent() {} +#endif + +#ifndef HAVE_KRB5_GET_ERROR_MESSAGE +# define krb5_get_error_message krb5_get_err_text +#endif + +#ifndef HAVE_KRB5_FREE_ERROR_MESSAGE +# define krb5_free_error_message(a,b) while(0) +#endif + #endif /* _BSD_MISC_H */ diff --git a/openbsd-compat/bsd-poll.c b/openbsd-compat/bsd-poll.c index f899d7a2..c7ef8277 100644 --- a/openbsd-compat/bsd-poll.c +++ b/openbsd-compat/bsd-poll.c @@ -1,4 +1,4 @@ -/* $Id: bsd-poll.c,v 1.4 2008/08/29 21:32:38 dtucker Exp $ */ +/* $Id: bsd-poll.c,v 1.5 2013/11/08 10:12:58 dtucker Exp $ */ /* * Copyright (c) 2004, 2005, 2007 Darren Tucker (dtucker at zip com au). @@ -19,12 +19,15 @@ #include "includes.h" #if !defined(HAVE_POLL) +#include <sys/types.h> +#include <sys/time.h> #ifdef HAVE_SYS_SELECT_H # include <sys/select.h> #endif -#include <stdlib.h> #include <errno.h> +#include <stdlib.h> +#include <unistd.h> #include "bsd-poll.h" /* diff --git a/openbsd-compat/bsd-setres_id.c b/openbsd-compat/bsd-setres_id.c new file mode 100644 index 00000000..018bde8c --- /dev/null +++ b/openbsd-compat/bsd-setres_id.c @@ -0,0 +1,100 @@ +/* $Id: bsd-setres_id.c,v 1.2 2013/12/07 21:23:09 djm Exp $ */ + +/* + * Copyright (c) 2012 Darren Tucker (dtucker at zip com au). + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "includes.h" + +#include <sys/types.h> + +#include <stdarg.h> +#include <unistd.h> +#include <string.h> + +#include "log.h" + +#if !defined(HAVE_SETRESGID) || defined(BROKEN_SETRESGID) +int +setresgid(gid_t rgid, gid_t egid, gid_t sgid) +{ + int ret = 0, saved_errno; + + if (rgid != sgid) { + errno = ENOSYS; + return -1; + } +#if defined(HAVE_SETREGID) && !defined(BROKEN_SETREGID) + if (setregid(rgid, egid) < 0) { + saved_errno = errno; + error("setregid %u: %.100s", rgid, strerror(errno)); + errno = saved_errno; + ret = -1; + } +#else + if (setegid(egid) < 0) { + saved_errno = errno; + error("setegid %u: %.100s", (u_int)egid, strerror(errno)); + errno = saved_errno; + ret = -1; + } + if (setgid(rgid) < 0) { + saved_errno = errno; + error("setgid %u: %.100s", rgid, strerror(errno)); + errno = saved_errno; + ret = -1; + } +#endif + return ret; +} +#endif + +#if !defined(HAVE_SETRESUID) || defined(BROKEN_SETRESUID) +int +setresuid(uid_t ruid, uid_t euid, uid_t suid) +{ + int ret = 0, saved_errno; + + if (ruid != suid) { + errno = ENOSYS; + return -1; + } +#if defined(HAVE_SETREUID) && !defined(BROKEN_SETREUID) + if (setreuid(ruid, euid) < 0) { + saved_errno = errno; + error("setreuid %u: %.100s", ruid, strerror(errno)); + errno = saved_errno; + ret = -1; + } +#else + +# ifndef SETEUID_BREAKS_SETUID + if (seteuid(euid) < 0) { + saved_errno = errno; + error("seteuid %u: %.100s", euid, strerror(errno)); + errno = saved_errno; + ret = -1; + } +# endif + if (setuid(ruid) < 0) { + saved_errno = errno; + error("setuid %u: %.100s", ruid, strerror(errno)); + errno = saved_errno; + ret = -1; + } +#endif + return ret; +} +#endif diff --git a/openbsd-compat/bsd-setres_id.h b/openbsd-compat/bsd-setres_id.h new file mode 100644 index 00000000..6c269e0b --- /dev/null +++ b/openbsd-compat/bsd-setres_id.h @@ -0,0 +1,24 @@ +/* $Id: bsd-setres_id.h,v 1.1 2012/11/05 06:04:37 dtucker Exp $ */ + +/* + * Copyright (c) 2012 Darren Tucker (dtucker at zip com au). + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef HAVE_SETRESGID +int setresgid(gid_t, gid_t, gid_t); +#endif +#ifndef HAVE_SETRESUID +int setresuid(uid_t, uid_t, uid_t); +#endif diff --git a/openbsd-compat/bsd-snprintf.c b/openbsd-compat/bsd-snprintf.c index 41d2be23..975991e7 100644 --- a/openbsd-compat/bsd-snprintf.c +++ b/openbsd-compat/bsd-snprintf.c @@ -160,6 +160,8 @@ #define DP_C_LONG 2 #define DP_C_LDOUBLE 3 #define DP_C_LLONG 4 +#define DP_C_SIZE 5 +#define DP_C_INTMAX 6 #define char_to_int(p) ((p)- '0') #ifndef MAX @@ -182,7 +184,7 @@ static int dopr(char *buffer, size_t maxlen, const char *format, static int fmtstr(char *buffer, size_t *currlen, size_t maxlen, char *value, int flags, int min, int max); static int fmtint(char *buffer, size_t *currlen, size_t maxlen, - LLONG value, int base, int min, int max, int flags); + intmax_t value, int base, int min, int max, int flags); static int fmtfp(char *buffer, size_t *currlen, size_t maxlen, LDOUBLE fvalue, int min, int max, int flags); @@ -190,7 +192,7 @@ static int dopr(char *buffer, size_t maxlen, const char *format, va_list args_in) { char ch; - LLONG value; + intmax_t value; LDOUBLE fvalue; char *strvalue; int min; @@ -287,6 +289,10 @@ dopr(char *buffer, size_t maxlen, const char *format, va_list args_in) cflags = DP_C_SHORT; ch = *format++; break; + case 'j': + cflags = DP_C_INTMAX; + ch = *format++; + break; case 'l': cflags = DP_C_LONG; ch = *format++; @@ -299,6 +305,10 @@ dopr(char *buffer, size_t maxlen, const char *format, va_list args_in) cflags = DP_C_LDOUBLE; ch = *format++; break; + case 'z': + cflags = DP_C_SIZE; + ch = *format++; + break; default: break; } @@ -314,6 +324,10 @@ dopr(char *buffer, size_t maxlen, const char *format, va_list args_in) value = va_arg (args, long int); else if (cflags == DP_C_LLONG) value = va_arg (args, LLONG); + else if (cflags == DP_C_SIZE) + value = va_arg (args, ssize_t); + else if (cflags == DP_C_INTMAX) + value = va_arg (args, intmax_t); else value = va_arg (args, int); if (fmtint(buffer, &currlen, maxlen, @@ -328,6 +342,12 @@ dopr(char *buffer, size_t maxlen, const char *format, va_list args_in) value = (long)va_arg (args, unsigned long int); else if (cflags == DP_C_LLONG) value = (long)va_arg (args, unsigned LLONG); + else if (cflags == DP_C_SIZE) + value = va_arg (args, size_t); +#ifdef notyet + else if (cflags == DP_C_INTMAX) + value = va_arg (args, uintmax_t); +#endif else value = (long)va_arg (args, unsigned int); if (fmtint(buffer, &currlen, maxlen, value, @@ -342,6 +362,12 @@ dopr(char *buffer, size_t maxlen, const char *format, va_list args_in) value = (long)va_arg (args, unsigned long int); else if (cflags == DP_C_LLONG) value = (LLONG)va_arg (args, unsigned LLONG); + else if (cflags == DP_C_SIZE) + value = va_arg (args, size_t); +#ifdef notyet + else if (cflags == DP_C_INTMAX) + value = va_arg (args, uintmax_t); +#endif else value = (long)va_arg (args, unsigned int); if (fmtint(buffer, &currlen, maxlen, value, @@ -358,6 +384,12 @@ dopr(char *buffer, size_t maxlen, const char *format, va_list args_in) value = (long)va_arg (args, unsigned long int); else if (cflags == DP_C_LLONG) value = (LLONG)va_arg (args, unsigned LLONG); + else if (cflags == DP_C_SIZE) + value = va_arg (args, size_t); +#ifdef notyet + else if (cflags == DP_C_INTMAX) + value = va_arg (args, uintmax_t); +#endif else value = (long)va_arg (args, unsigned int); if (fmtint(buffer, &currlen, maxlen, value, @@ -416,6 +448,7 @@ dopr(char *buffer, size_t maxlen, const char *format, va_list args_in) (long) strvalue, 16, min, max, flags) == -1) return -1; break; +#if we_dont_want_this_in_openssh case 'n': if (cflags == DP_C_SHORT) { short int *num; @@ -429,12 +462,21 @@ dopr(char *buffer, size_t maxlen, const char *format, va_list args_in) LLONG *num; num = va_arg (args, LLONG *); *num = (LLONG)currlen; + } else if (cflags == DP_C_SIZE) { + ssize_t *num; + num = va_arg (args, ssize_t *); + *num = (ssize_t)currlen; + } else if (cflags == DP_C_INTMAX) { + intmax_t *num; + num = va_arg (args, intmax_t *); + *num = (intmax_t)currlen; } else { int *num; num = va_arg (args, int *); *num = currlen; } break; +#endif case '%': DOPR_OUTCH(buffer, currlen, maxlen, ch); break; diff --git a/openbsd-compat/bsd-statvfs.c b/openbsd-compat/bsd-statvfs.c index 844d5b46..2b1da80e 100644 --- a/openbsd-compat/bsd-statvfs.c +++ b/openbsd-compat/bsd-statvfs.c @@ -1,7 +1,7 @@ -/* $Id: bsd-statvfs.c,v 1.1 2008/06/08 17:32:29 dtucker Exp $ */ +/* $Id: bsd-statvfs.c,v 1.2 2014/01/17 07:10:59 dtucker Exp $ */ /* - * Copyright (c) 2008 Darren Tucker <dtucker@zip.com.au> + * Copyright (c) 2008,2014 Darren Tucker <dtucker@zip.com.au> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -18,20 +18,65 @@ #include "includes.h" +#if !defined(HAVE_STATVFS) || !defined(HAVE_FSTATVFS) + +#include <sys/param.h> +#ifdef HAVE_SYS_MOUNT_H +# include <sys/mount.h> +#endif + #include <errno.h> -#ifndef HAVE_STATVFS +static void +copy_statfs_to_statvfs(struct statvfs *to, struct statfs *from) +{ + to->f_bsize = from->f_bsize; + to->f_frsize = from->f_bsize; /* no exact equivalent */ + to->f_blocks = from->f_blocks; + to->f_bfree = from->f_bfree; + to->f_bavail = from->f_bavail; + to->f_files = from->f_files; + to->f_ffree = from->f_ffree; + to->f_favail = from->f_ffree; /* no exact equivalent */ + to->f_fsid = 0; /* XXX fix me */ + to->f_flag = from->f_flags; + to->f_namemax = MNAMELEN; +} + +# ifndef HAVE_STATVFS int statvfs(const char *path, struct statvfs *buf) { +# ifdef HAVE_STATFS + struct statfs fs; + + memset(&fs, 0, sizeof(fs)); + if (statfs(path, &fs) == -1) + return -1; + copy_statfs_to_statvfs(buf, &fs); + return 0; +# else errno = ENOSYS; return -1; +# endif } -#endif +# endif -#ifndef HAVE_FSTATVFS +# ifndef HAVE_FSTATVFS int fstatvfs(int fd, struct statvfs *buf) { +# ifdef HAVE_FSTATFS + struct statfs fs; + + memset(&fs, 0, sizeof(fs)); + if (fstatfs(fd, &fs) == -1) + return -1; + copy_statfs_to_statvfs(buf, &fs); + return 0; +# else errno = ENOSYS; return -1; +# endif } +# endif + #endif diff --git a/openbsd-compat/bsd-statvfs.h b/openbsd-compat/bsd-statvfs.h index da215ffc..dfd60997 100644 --- a/openbsd-compat/bsd-statvfs.h +++ b/openbsd-compat/bsd-statvfs.h @@ -1,7 +1,7 @@ -/* $Id: bsd-statvfs.h,v 1.1 2008/06/08 17:32:29 dtucker Exp $ */ +/* $Id: bsd-statvfs.h,v 1.3 2014/01/17 07:48:22 dtucker Exp $ */ /* - * Copyright (c) 2008 Darren Tucker <dtucker@zip.com.au> + * Copyright (c) 2008,2014 Darren Tucker <dtucker@zip.com.au> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -18,14 +18,17 @@ #include "includes.h" +#if !defined(HAVE_STATVFS) || !defined(HAVE_FSTATVFS) + #include <sys/types.h> +#ifdef HAVE_SYS_MOUNT_H +#include <sys/mount.h> +#endif #ifdef HAVE_SYS_STATFS_H #include <sys/statfs.h> #endif -#ifndef HAVE_STATVFS - #ifndef HAVE_FSBLKCNT_T typedef unsigned long fsblkcnt_t; #endif diff --git a/openbsd-compat/chacha_private.h b/openbsd-compat/chacha_private.h new file mode 100644 index 00000000..7c3680fa --- /dev/null +++ b/openbsd-compat/chacha_private.h @@ -0,0 +1,222 @@ +/* +chacha-merged.c version 20080118 +D. J. Bernstein +Public domain. +*/ + +/* $OpenBSD: chacha_private.h,v 1.2 2013/10/04 07:02:27 djm Exp $ */ + +typedef unsigned char u8; +typedef unsigned int u32; + +typedef struct +{ + u32 input[16]; /* could be compressed */ +} chacha_ctx; + +#define U8C(v) (v##U) +#define U32C(v) (v##U) + +#define U8V(v) ((u8)(v) & U8C(0xFF)) +#define U32V(v) ((u32)(v) & U32C(0xFFFFFFFF)) + +#define ROTL32(v, n) \ + (U32V((v) << (n)) | ((v) >> (32 - (n)))) + +#define U8TO32_LITTLE(p) \ + (((u32)((p)[0]) ) | \ + ((u32)((p)[1]) << 8) | \ + ((u32)((p)[2]) << 16) | \ + ((u32)((p)[3]) << 24)) + +#define U32TO8_LITTLE(p, v) \ + do { \ + (p)[0] = U8V((v) ); \ + (p)[1] = U8V((v) >> 8); \ + (p)[2] = U8V((v) >> 16); \ + (p)[3] = U8V((v) >> 24); \ + } while (0) + +#define ROTATE(v,c) (ROTL32(v,c)) +#define XOR(v,w) ((v) ^ (w)) +#define PLUS(v,w) (U32V((v) + (w))) +#define PLUSONE(v) (PLUS((v),1)) + +#define QUARTERROUND(a,b,c,d) \ + a = PLUS(a,b); d = ROTATE(XOR(d,a),16); \ + c = PLUS(c,d); b = ROTATE(XOR(b,c),12); \ + a = PLUS(a,b); d = ROTATE(XOR(d,a), 8); \ + c = PLUS(c,d); b = ROTATE(XOR(b,c), 7); + +static const char sigma[16] = "expand 32-byte k"; +static const char tau[16] = "expand 16-byte k"; + +static void +chacha_keysetup(chacha_ctx *x,const u8 *k,u32 kbits,u32 ivbits) +{ + const char *constants; + + x->input[4] = U8TO32_LITTLE(k + 0); + x->input[5] = U8TO32_LITTLE(k + 4); + x->input[6] = U8TO32_LITTLE(k + 8); + x->input[7] = U8TO32_LITTLE(k + 12); + if (kbits == 256) { /* recommended */ + k += 16; + constants = sigma; + } else { /* kbits == 128 */ + constants = tau; + } + x->input[8] = U8TO32_LITTLE(k + 0); + x->input[9] = U8TO32_LITTLE(k + 4); + x->input[10] = U8TO32_LITTLE(k + 8); + x->input[11] = U8TO32_LITTLE(k + 12); + x->input[0] = U8TO32_LITTLE(constants + 0); + x->input[1] = U8TO32_LITTLE(constants + 4); + x->input[2] = U8TO32_LITTLE(constants + 8); + x->input[3] = U8TO32_LITTLE(constants + 12); +} + +static void +chacha_ivsetup(chacha_ctx *x,const u8 *iv) +{ + x->input[12] = 0; + x->input[13] = 0; + x->input[14] = U8TO32_LITTLE(iv + 0); + x->input[15] = U8TO32_LITTLE(iv + 4); +} + +static void +chacha_encrypt_bytes(chacha_ctx *x,const u8 *m,u8 *c,u32 bytes) +{ + u32 x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15; + u32 j0, j1, j2, j3, j4, j5, j6, j7, j8, j9, j10, j11, j12, j13, j14, j15; + u8 *ctarget = NULL; + u8 tmp[64]; + u_int i; + + if (!bytes) return; + + j0 = x->input[0]; + j1 = x->input[1]; + j2 = x->input[2]; + j3 = x->input[3]; + j4 = x->input[4]; + j5 = x->input[5]; + j6 = x->input[6]; + j7 = x->input[7]; + j8 = x->input[8]; + j9 = x->input[9]; + j10 = x->input[10]; + j11 = x->input[11]; + j12 = x->input[12]; + j13 = x->input[13]; + j14 = x->input[14]; + j15 = x->input[15]; + + for (;;) { + if (bytes < 64) { + for (i = 0;i < bytes;++i) tmp[i] = m[i]; + m = tmp; + ctarget = c; + c = tmp; + } + x0 = j0; + x1 = j1; + x2 = j2; + x3 = j3; + x4 = j4; + x5 = j5; + x6 = j6; + x7 = j7; + x8 = j8; + x9 = j9; + x10 = j10; + x11 = j11; + x12 = j12; + x13 = j13; + x14 = j14; + x15 = j15; + for (i = 20;i > 0;i -= 2) { + QUARTERROUND( x0, x4, x8,x12) + QUARTERROUND( x1, x5, x9,x13) + QUARTERROUND( x2, x6,x10,x14) + QUARTERROUND( x3, x7,x11,x15) + QUARTERROUND( x0, x5,x10,x15) + QUARTERROUND( x1, x6,x11,x12) + QUARTERROUND( x2, x7, x8,x13) + QUARTERROUND( x3, x4, x9,x14) + } + x0 = PLUS(x0,j0); + x1 = PLUS(x1,j1); + x2 = PLUS(x2,j2); + x3 = PLUS(x3,j3); + x4 = PLUS(x4,j4); + x5 = PLUS(x5,j5); + x6 = PLUS(x6,j6); + x7 = PLUS(x7,j7); + x8 = PLUS(x8,j8); + x9 = PLUS(x9,j9); + x10 = PLUS(x10,j10); + x11 = PLUS(x11,j11); + x12 = PLUS(x12,j12); + x13 = PLUS(x13,j13); + x14 = PLUS(x14,j14); + x15 = PLUS(x15,j15); + +#ifndef KEYSTREAM_ONLY + x0 = XOR(x0,U8TO32_LITTLE(m + 0)); + x1 = XOR(x1,U8TO32_LITTLE(m + 4)); + x2 = XOR(x2,U8TO32_LITTLE(m + 8)); + x3 = XOR(x3,U8TO32_LITTLE(m + 12)); + x4 = XOR(x4,U8TO32_LITTLE(m + 16)); + x5 = XOR(x5,U8TO32_LITTLE(m + 20)); + x6 = XOR(x6,U8TO32_LITTLE(m + 24)); + x7 = XOR(x7,U8TO32_LITTLE(m + 28)); + x8 = XOR(x8,U8TO32_LITTLE(m + 32)); + x9 = XOR(x9,U8TO32_LITTLE(m + 36)); + x10 = XOR(x10,U8TO32_LITTLE(m + 40)); + x11 = XOR(x11,U8TO32_LITTLE(m + 44)); + x12 = XOR(x12,U8TO32_LITTLE(m + 48)); + x13 = XOR(x13,U8TO32_LITTLE(m + 52)); + x14 = XOR(x14,U8TO32_LITTLE(m + 56)); + x15 = XOR(x15,U8TO32_LITTLE(m + 60)); +#endif + + j12 = PLUSONE(j12); + if (!j12) { + j13 = PLUSONE(j13); + /* stopping at 2^70 bytes per nonce is user's responsibility */ + } + + U32TO8_LITTLE(c + 0,x0); + U32TO8_LITTLE(c + 4,x1); + U32TO8_LITTLE(c + 8,x2); + U32TO8_LITTLE(c + 12,x3); + U32TO8_LITTLE(c + 16,x4); + U32TO8_LITTLE(c + 20,x5); + U32TO8_LITTLE(c + 24,x6); + U32TO8_LITTLE(c + 28,x7); + U32TO8_LITTLE(c + 32,x8); + U32TO8_LITTLE(c + 36,x9); + U32TO8_LITTLE(c + 40,x10); + U32TO8_LITTLE(c + 44,x11); + U32TO8_LITTLE(c + 48,x12); + U32TO8_LITTLE(c + 52,x13); + U32TO8_LITTLE(c + 56,x14); + U32TO8_LITTLE(c + 60,x15); + + if (bytes <= 64) { + if (bytes < 64) { + for (i = 0;i < bytes;++i) ctarget[i] = c[i]; + } + x->input[12] = j12; + x->input[13] = j13; + return; + } + bytes -= 64; + c += 64; +#ifndef KEYSTREAM_ONLY + m += 64; +#endif + } +} diff --git a/openbsd-compat/getopt.c b/openbsd-compat/getopt.c deleted file mode 100644 index 5450e43d..00000000 --- a/openbsd-compat/getopt.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * Copyright (c) 1987, 1993, 1994 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* OPENBSD ORIGINAL: lib/libc/stdlib/getopt.c */ - -#include "includes.h" -#if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET) - -#if defined(LIBC_SCCS) && !defined(lint) -static char *rcsid = "$OpenBSD: getopt.c,v 1.5 2003/06/02 20:18:37 millert Exp $"; -#endif /* LIBC_SCCS and not lint */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -int BSDopterr = 1, /* if error message should be printed */ - BSDoptind = 1, /* index into parent argv vector */ - BSDoptopt, /* character checked for validity */ - BSDoptreset; /* reset getopt */ -char *BSDoptarg; /* argument associated with option */ - -#define BADCH (int)'?' -#define BADARG (int)':' -#define EMSG "" - -/* - * getopt -- - * Parse argc/argv argument vector. - */ -int -BSDgetopt(nargc, nargv, ostr) - int nargc; - char * const *nargv; - const char *ostr; -{ - extern char *__progname; - static char *place = EMSG; /* option letter processing */ - char *oli; /* option letter list index */ - - if (ostr == NULL) - return (-1); - - if (BSDoptreset || !*place) { /* update scanning pointer */ - BSDoptreset = 0; - if (BSDoptind >= nargc || *(place = nargv[BSDoptind]) != '-') { - place = EMSG; - return (-1); - } - if (place[1] && *++place == '-') { /* found "--" */ - ++BSDoptind; - place = EMSG; - return (-1); - } - } /* option letter okay? */ - if ((BSDoptopt = (int)*place++) == (int)':' || - !(oli = strchr(ostr, BSDoptopt))) { - /* - * if the user didn't specify '-' as an option, - * assume it means -1. - */ - if (BSDoptopt == (int)'-') - return (-1); - if (!*place) - ++BSDoptind; - if (BSDopterr && *ostr != ':') - (void)fprintf(stderr, - "%s: illegal option -- %c\n", __progname, BSDoptopt); - return (BADCH); - } - if (*++oli != ':') { /* don't need argument */ - BSDoptarg = NULL; - if (!*place) - ++BSDoptind; - } - else { /* need an argument */ - if (*place) /* no white space */ - BSDoptarg = place; - else if (nargc <= ++BSDoptind) { /* no arg */ - place = EMSG; - if (*ostr == ':') - return (BADARG); - if (BSDopterr) - (void)fprintf(stderr, - "%s: option requires an argument -- %c\n", - __progname, BSDoptopt); - return (BADCH); - } - else /* white space */ - BSDoptarg = nargv[BSDoptind]; - place = EMSG; - ++BSDoptind; - } - return (BSDoptopt); /* dump back option letter */ -} - -#endif /* !defined(HAVE_GETOPT) || !defined(HAVE_OPTRESET) */ diff --git a/openbsd-compat/getopt.h b/openbsd-compat/getopt.h new file mode 100644 index 00000000..8eb12447 --- /dev/null +++ b/openbsd-compat/getopt.h @@ -0,0 +1,74 @@ +/* $OpenBSD: getopt.h,v 1.2 2008/06/26 05:42:04 ray Exp $ */ +/* $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $ */ + +/*- + * Copyright (c) 2000 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Dieter Baron and Thomas Klausner. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _GETOPT_H_ +#define _GETOPT_H_ + +/* + * GNU-like getopt_long() and 4.4BSD getsubopt()/optreset extensions + */ +#define no_argument 0 +#define required_argument 1 +#define optional_argument 2 + +struct option { + /* name of long option */ + const char *name; + /* + * one of no_argument, required_argument, and optional_argument: + * whether option takes an argument + */ + int has_arg; + /* if not NULL, set *flag to val when option found */ + int *flag; + /* if flag not NULL, value to set *flag to; else return value */ + int val; +}; + +int getopt_long(int, char * const *, const char *, + const struct option *, int *); +int getopt_long_only(int, char * const *, const char *, + const struct option *, int *); +#ifndef _GETOPT_DEFINED_ +#define _GETOPT_DEFINED_ +int getopt(int, char * const *, const char *); +int getsubopt(char **, char * const *, char **); + +extern char *optarg; /* getopt(3) external variables */ +extern int opterr; +extern int optind; +extern int optopt; +extern int optreset; +extern char *suboptarg; /* getsubopt(3) external variable */ +#endif + +#endif /* !_GETOPT_H_ */ diff --git a/openbsd-compat/getopt_long.c b/openbsd-compat/getopt_long.c new file mode 100644 index 00000000..e2894743 --- /dev/null +++ b/openbsd-compat/getopt_long.c @@ -0,0 +1,532 @@ +/* $OpenBSD: getopt_long.c,v 1.25 2011/03/05 22:10:11 guenther Exp $ */ +/* $NetBSD: getopt_long.c,v 1.15 2002/01/31 22:43:40 tv Exp $ */ + +/* + * Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Sponsored in part by the Defense Advanced Research Projects + * Agency (DARPA) and Air Force Research Laboratory, Air Force + * Materiel Command, USAF, under agreement number F39502-99-1-0512. + */ +/*- + * Copyright (c) 2000 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Dieter Baron and Thomas Klausner. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* OPENBSD ORIGINAL: lib/libc/stdlib/getopt_long.c */ +#include "includes.h" + +#if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET) + +/* + * Some defines to make it easier to keep the code in sync with upstream. + * getopt opterr optind optopt optreset optarg are all in defines.h which is + * pulled in by includes.h. + */ +#define warnx logit + +#if 0 +#include <err.h> +#include <getopt.h> +#endif +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> + +#include "log.h" + +int opterr = 1; /* if error message should be printed */ +int optind = 1; /* index into parent argv vector */ +int optopt = '?'; /* character checked for validity */ +int optreset; /* reset getopt */ +char *optarg; /* argument associated with option */ + +#define PRINT_ERROR ((opterr) && (*options != ':')) + +#define FLAG_PERMUTE 0x01 /* permute non-options to the end of argv */ +#define FLAG_ALLARGS 0x02 /* treat non-options as args to option "-1" */ +#define FLAG_LONGONLY 0x04 /* operate as getopt_long_only */ + +/* return values */ +#define BADCH (int)'?' +#define BADARG ((*options == ':') ? (int)':' : (int)'?') +#define INORDER (int)1 + +#define EMSG "" + +static int getopt_internal(int, char * const *, const char *, + const struct option *, int *, int); +static int parse_long_options(char * const *, const char *, + const struct option *, int *, int); +static int gcd(int, int); +static void permute_args(int, int, int, char * const *); + +static char *place = EMSG; /* option letter processing */ + +/* XXX: set optreset to 1 rather than these two */ +static int nonopt_start = -1; /* first non option argument (for permute) */ +static int nonopt_end = -1; /* first option after non options (for permute) */ + +/* Error messages */ +static const char recargchar[] = "option requires an argument -- %c"; +static const char recargstring[] = "option requires an argument -- %s"; +static const char ambig[] = "ambiguous option -- %.*s"; +static const char noarg[] = "option doesn't take an argument -- %.*s"; +static const char illoptchar[] = "unknown option -- %c"; +static const char illoptstring[] = "unknown option -- %s"; + +/* + * Compute the greatest common divisor of a and b. + */ +static int +gcd(int a, int b) +{ + int c; + + c = a % b; + while (c != 0) { + a = b; + b = c; + c = a % b; + } + + return (b); +} + +/* + * Exchange the block from nonopt_start to nonopt_end with the block + * from nonopt_end to opt_end (keeping the same order of arguments + * in each block). + */ +static void +permute_args(int panonopt_start, int panonopt_end, int opt_end, + char * const *nargv) +{ + int cstart, cyclelen, i, j, ncycle, nnonopts, nopts, pos; + char *swap; + + /* + * compute lengths of blocks and number and size of cycles + */ + nnonopts = panonopt_end - panonopt_start; + nopts = opt_end - panonopt_end; + ncycle = gcd(nnonopts, nopts); + cyclelen = (opt_end - panonopt_start) / ncycle; + + for (i = 0; i < ncycle; i++) { + cstart = panonopt_end+i; + pos = cstart; + for (j = 0; j < cyclelen; j++) { + if (pos >= panonopt_end) + pos -= nnonopts; + else + pos += nopts; + swap = nargv[pos]; + /* LINTED const cast */ + ((char **) nargv)[pos] = nargv[cstart]; + /* LINTED const cast */ + ((char **)nargv)[cstart] = swap; + } + } +} + +/* + * parse_long_options -- + * Parse long options in argc/argv argument vector. + * Returns -1 if short_too is set and the option does not match long_options. + */ +static int +parse_long_options(char * const *nargv, const char *options, + const struct option *long_options, int *idx, int short_too) +{ + char *current_argv, *has_equal; + size_t current_argv_len; + int i, match; + + current_argv = place; + match = -1; + + optind++; + + if ((has_equal = strchr(current_argv, '=')) != NULL) { + /* argument found (--option=arg) */ + current_argv_len = has_equal - current_argv; + has_equal++; + } else + current_argv_len = strlen(current_argv); + + for (i = 0; long_options[i].name; i++) { + /* find matching long option */ + if (strncmp(current_argv, long_options[i].name, + current_argv_len)) + continue; + + if (strlen(long_options[i].name) == current_argv_len) { + /* exact match */ + match = i; + break; + } + /* + * If this is a known short option, don't allow + * a partial match of a single character. + */ + if (short_too && current_argv_len == 1) + continue; + + if (match == -1) /* partial match */ + match = i; + else { + /* ambiguous abbreviation */ + if (PRINT_ERROR) + warnx(ambig, (int)current_argv_len, + current_argv); + optopt = 0; + return (BADCH); + } + } + if (match != -1) { /* option found */ + if (long_options[match].has_arg == no_argument + && has_equal) { + if (PRINT_ERROR) + warnx(noarg, (int)current_argv_len, + current_argv); + /* + * XXX: GNU sets optopt to val regardless of flag + */ + if (long_options[match].flag == NULL) + optopt = long_options[match].val; + else + optopt = 0; + return (BADARG); + } + if (long_options[match].has_arg == required_argument || + long_options[match].has_arg == optional_argument) { + if (has_equal) + optarg = has_equal; + else if (long_options[match].has_arg == + required_argument) { + /* + * optional argument doesn't use next nargv + */ + optarg = nargv[optind++]; + } + } + if ((long_options[match].has_arg == required_argument) + && (optarg == NULL)) { + /* + * Missing argument; leading ':' indicates no error + * should be generated. + */ + if (PRINT_ERROR) + warnx(recargstring, + current_argv); + /* + * XXX: GNU sets optopt to val regardless of flag + */ + if (long_options[match].flag == NULL) + optopt = long_options[match].val; + else + optopt = 0; + --optind; + return (BADARG); + } + } else { /* unknown option */ + if (short_too) { + --optind; + return (-1); + } + if (PRINT_ERROR) + warnx(illoptstring, current_argv); + optopt = 0; + return (BADCH); + } + if (idx) + *idx = match; + if (long_options[match].flag) { + *long_options[match].flag = long_options[match].val; + return (0); + } else + return (long_options[match].val); +} + +/* + * getopt_internal -- + * Parse argc/argv argument vector. Called by user level routines. + */ +static int +getopt_internal(int nargc, char * const *nargv, const char *options, + const struct option *long_options, int *idx, int flags) +{ + char *oli; /* option letter list index */ + int optchar, short_too; + static int posixly_correct = -1; + + if (options == NULL) + return (-1); + + /* + * XXX Some GNU programs (like cvs) set optind to 0 instead of + * XXX using optreset. Work around this braindamage. + */ + if (optind == 0) + optind = optreset = 1; + + /* + * Disable GNU extensions if POSIXLY_CORRECT is set or options + * string begins with a '+'. + */ + if (posixly_correct == -1 || optreset) + posixly_correct = (getenv("POSIXLY_CORRECT") != NULL); + if (*options == '-') + flags |= FLAG_ALLARGS; + else if (posixly_correct || *options == '+') + flags &= ~FLAG_PERMUTE; + if (*options == '+' || *options == '-') + options++; + + optarg = NULL; + if (optreset) + nonopt_start = nonopt_end = -1; +start: + if (optreset || !*place) { /* update scanning pointer */ + optreset = 0; + if (optind >= nargc) { /* end of argument vector */ + place = EMSG; + if (nonopt_end != -1) { + /* do permutation, if we have to */ + permute_args(nonopt_start, nonopt_end, + optind, nargv); + optind -= nonopt_end - nonopt_start; + } + else if (nonopt_start != -1) { + /* + * If we skipped non-options, set optind + * to the first of them. + */ + optind = nonopt_start; + } + nonopt_start = nonopt_end = -1; + return (-1); + } + if (*(place = nargv[optind]) != '-' || + (place[1] == '\0' && strchr(options, '-') == NULL)) { + place = EMSG; /* found non-option */ + if (flags & FLAG_ALLARGS) { + /* + * GNU extension: + * return non-option as argument to option 1 + */ + optarg = nargv[optind++]; + return (INORDER); + } + if (!(flags & FLAG_PERMUTE)) { + /* + * If no permutation wanted, stop parsing + * at first non-option. + */ + return (-1); + } + /* do permutation */ + if (nonopt_start == -1) + nonopt_start = optind; + else if (nonopt_end != -1) { + permute_args(nonopt_start, nonopt_end, + optind, nargv); + nonopt_start = optind - + (nonopt_end - nonopt_start); + nonopt_end = -1; + } + optind++; + /* process next argument */ + goto start; + } + if (nonopt_start != -1 && nonopt_end == -1) + nonopt_end = optind; + + /* + * If we have "-" do nothing, if "--" we are done. + */ + if (place[1] != '\0' && *++place == '-' && place[1] == '\0') { + optind++; + place = EMSG; + /* + * We found an option (--), so if we skipped + * non-options, we have to permute. + */ + if (nonopt_end != -1) { + permute_args(nonopt_start, nonopt_end, + optind, nargv); + optind -= nonopt_end - nonopt_start; + } + nonopt_start = nonopt_end = -1; + return (-1); + } + } + + /* + * Check long options if: + * 1) we were passed some + * 2) the arg is not just "-" + * 3) either the arg starts with -- we are getopt_long_only() + */ + if (long_options != NULL && place != nargv[optind] && + (*place == '-' || (flags & FLAG_LONGONLY))) { + short_too = 0; + if (*place == '-') + place++; /* --foo long option */ + else if (*place != ':' && strchr(options, *place) != NULL) + short_too = 1; /* could be short option too */ + + optchar = parse_long_options(nargv, options, long_options, + idx, short_too); + if (optchar != -1) { + place = EMSG; + return (optchar); + } + } + + if ((optchar = (int)*place++) == (int)':' || + (optchar == (int)'-' && *place != '\0') || + (oli = strchr(options, optchar)) == NULL) { + /* + * If the user specified "-" and '-' isn't listed in + * options, return -1 (non-option) as per POSIX. + * Otherwise, it is an unknown option character (or ':'). + */ + if (optchar == (int)'-' && *place == '\0') + return (-1); + if (!*place) + ++optind; + if (PRINT_ERROR) + warnx(illoptchar, optchar); + optopt = optchar; + return (BADCH); + } + if (long_options != NULL && optchar == 'W' && oli[1] == ';') { + /* -W long-option */ + if (*place) /* no space */ + /* NOTHING */; + else if (++optind >= nargc) { /* no arg */ + place = EMSG; + if (PRINT_ERROR) + warnx(recargchar, optchar); + optopt = optchar; + return (BADARG); + } else /* white space */ + place = nargv[optind]; + optchar = parse_long_options(nargv, options, long_options, + idx, 0); + place = EMSG; + return (optchar); + } + if (*++oli != ':') { /* doesn't take argument */ + if (!*place) + ++optind; + } else { /* takes (optional) argument */ + optarg = NULL; + if (*place) /* no white space */ + optarg = place; + else if (oli[1] != ':') { /* arg not optional */ + if (++optind >= nargc) { /* no arg */ + place = EMSG; + if (PRINT_ERROR) + warnx(recargchar, optchar); + optopt = optchar; + return (BADARG); + } else + optarg = nargv[optind]; + } + place = EMSG; + ++optind; + } + /* dump back option letter */ + return (optchar); +} + +/* + * getopt -- + * Parse argc/argv argument vector. + * + * [eventually this will replace the BSD getopt] + */ +int +getopt(int nargc, char * const *nargv, const char *options) +{ + + /* + * We don't pass FLAG_PERMUTE to getopt_internal() since + * the BSD getopt(3) (unlike GNU) has never done this. + * + * Furthermore, since many privileged programs call getopt() + * before dropping privileges it makes sense to keep things + * as simple (and bug-free) as possible. + */ + return (getopt_internal(nargc, nargv, options, NULL, NULL, 0)); +} + +#if 0 +/* + * getopt_long -- + * Parse argc/argv argument vector. + */ +int +getopt_long(int nargc, char * const *nargv, const char *options, + const struct option *long_options, int *idx) +{ + + return (getopt_internal(nargc, nargv, options, long_options, idx, + FLAG_PERMUTE)); +} + +/* + * getopt_long_only -- + * Parse argc/argv argument vector. + */ +int +getopt_long_only(int nargc, char * const *nargv, const char *options, + const struct option *long_options, int *idx) +{ + + return (getopt_internal(nargc, nargv, options, long_options, idx, + FLAG_PERMUTE|FLAG_LONGONLY)); +} +#endif + +#endif /* !defined(HAVE_GETOPT) || !defined(HAVE_OPTRESET) */ diff --git a/openbsd-compat/getrrsetbyname-ldns.c b/openbsd-compat/getrrsetbyname-ldns.c index 8ce5678c..343720f1 100644 --- a/openbsd-compat/getrrsetbyname-ldns.c +++ b/openbsd-compat/getrrsetbyname-ldns.c @@ -58,7 +58,6 @@ #define malloc(x) (xmalloc(x)) #define calloc(x, y) (xcalloc((x),(y))) -#define free(x) (xfree(x)) int getrrsetbyname(const char *hostname, unsigned int rdclass, @@ -205,7 +204,8 @@ getrrsetbyname(const char *hostname, unsigned int rdclass, } if (rr->_rr_class == rrset->rri_rdclass && - rr->_rr_type == LDNS_RR_TYPE_RRSIG) { + rr->_rr_type == LDNS_RR_TYPE_RRSIG && + rrset->rri_sigs) { rdata = &rrset->rri_sigs[index_sig++]; } diff --git a/openbsd-compat/openbsd-compat.h b/openbsd-compat/openbsd-compat.h index 807acf62..f34619e4 100644 --- a/openbsd-compat/openbsd-compat.h +++ b/openbsd-compat/openbsd-compat.h @@ -1,4 +1,4 @@ -/* $Id: openbsd-compat.h,v 1.52 2011/09/23 01:16:11 djm Exp $ */ +/* $Id: openbsd-compat.h,v 1.60 2013/12/07 00:51:54 djm Exp $ */ /* * Copyright (c) 1999-2003 Damien Miller. All rights reserved. @@ -44,6 +44,7 @@ #include "vis.h" #include "getrrsetbyname.h" #include "sha2.h" +#include "blf.h" #ifndef HAVE_BASENAME char *basename(const char *path); @@ -111,6 +112,10 @@ char *dirname(const char *path); int fmt_scaled(long long number, char *result); #endif +#ifndef HAVE_SCAN_SCALED +int scan_scaled(char *, long long *); +#endif + #if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA) char *inet_ntoa(struct in_addr in); #endif @@ -139,6 +144,7 @@ int getgrouplist(const char *, gid_t, gid_t *, int *); #if !defined(HAVE_GETOPT) || !defined(HAVE_GETOPT_OPTRESET) int BSDgetopt(int argc, char * const *argv, const char *opts); +#include "openbsd-compat/getopt.h" #endif #if defined(HAVE_DECL_WRITEV) && HAVE_DECL_WRITEV == 0 @@ -149,15 +155,20 @@ int writev(int, struct iovec *, int); /* Home grown routines */ #include "bsd-misc.h" +#include "bsd-setres_id.h" #include "bsd-statvfs.h" #include "bsd-waitpid.h" #include "bsd-poll.h" #ifndef HAVE_GETPEEREID int getpeereid(int , uid_t *, gid_t *); -#endif +#endif -#ifndef HAVE_ARC4RANDOM +#ifdef HAVE_ARC4RANDOM +# ifndef HAVE_ARC4RANDOM_STIR +# define arc4random_stir() +# endif +#else unsigned int arc4random(void); void arc4random_stir(void); #endif /* !HAVE_ARC4RANDOM */ @@ -189,10 +200,23 @@ int snprintf(char *, size_t, SNPRINTF_CONST char *, ...); long long strtoll(const char *, char **, int); #endif +#ifndef HAVE_STRTOUL +unsigned long strtoul(const char *, char **, int); +#endif + +#ifndef HAVE_STRTOULL +unsigned long long strtoull(const char *, char **, int); +#endif + #ifndef HAVE_STRTONUM long long strtonum(const char *, long long, long long, const char **); #endif +/* multibyte character support */ +#ifndef HAVE_MBLEN +# define mblen(x, y) 1 +#endif + #if !defined(HAVE_VASPRINTF) || !defined(HAVE_VSNPRINTF) # include <stdarg.h> #endif @@ -217,6 +241,11 @@ char *group_from_gid(gid_t, int); int timingsafe_bcmp(const void *, const void *, size_t); #endif +#ifndef HAVE_BCRYPT_PBKDF +int bcrypt_pbkdf(const char *, size_t, const u_int8_t *, size_t, + u_int8_t *, size_t, unsigned int); +#endif + void *xmmap(size_t size); char *xcrypt(const char *password, const char *salt); char *shadow_pw(struct passwd *pw); diff --git a/openbsd-compat/openssl-compat.c b/openbsd-compat/openssl-compat.c index 5189cab6..60eac4b1 100644 --- a/openbsd-compat/openssl-compat.c +++ b/openbsd-compat/openssl-compat.c @@ -1,4 +1,4 @@ -/* $Id: openssl-compat.c,v 1.14 2011/05/10 01:13:38 dtucker Exp $ */ +/* $Id: openssl-compat.c,v 1.16 2014/01/17 07:00:41 dtucker Exp $ */ /* * Copyright (c) 2005 Darren Tucker <dtucker@zip.com.au> @@ -59,6 +59,34 @@ ssh_EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *evp) } #endif +#ifndef HAVE_EVP_DIGESTINIT_EX +int +EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *md, void *engine) +{ + if (engine != NULL) + fatal("%s: ENGINE is not supported", __func__); +# ifdef OPENSSL_EVP_DIGESTUPDATE_VOID + EVP_DigestInit(ctx, md); + return 1; +# else + return EVP_DigestInit(ctx, md); +# endif +} +#endif + +#ifndef HAVE_EVP_DIGESTFINAL_EX +int +EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s) +{ +# ifdef OPENSSL_EVP_DIGESTUPDATE_VOID + EVP_DigestFinal(ctx, md, s); + return 1; +# else + return EVP_DigestFinal(ctx, md, s); +# endif +} +#endif + #ifdef OPENSSL_EVP_DIGESTUPDATE_VOID int ssh_EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt) diff --git a/openbsd-compat/openssl-compat.h b/openbsd-compat/openssl-compat.h index a151eff3..021ea98f 100644 --- a/openbsd-compat/openssl-compat.h +++ b/openbsd-compat/openssl-compat.h @@ -1,4 +1,4 @@ -/* $Id: openssl-compat.h,v 1.20 2012/01/17 03:03:39 dtucker Exp $ */ +/* $Id: openssl-compat.h,v 1.25 2014/01/17 06:32:31 dtucker Exp $ */ /* * Copyright (c) 2005 Darren Tucker <dtucker@zip.com.au> @@ -40,7 +40,7 @@ # define EVP_CIPHER_CTX_get_app_data(e) ((e)->app_data) #endif -#if OPENSSL_VERSION_NUMBER < 0x1000000fL +#if OPENSSL_VERSION_NUMBER < 0x10000001L # define LIBCRYPTO_EVP_INL_TYPE unsigned int #else # define LIBCRYPTO_EVP_INL_TYPE size_t @@ -59,20 +59,43 @@ # define EVP_aes_128_cbc evp_rijndael # define EVP_aes_192_cbc evp_rijndael # define EVP_aes_256_cbc evp_rijndael -extern const EVP_CIPHER *evp_rijndael(void); -extern void ssh_rijndael_iv(EVP_CIPHER_CTX *, int, u_char *, u_int); +const EVP_CIPHER *evp_rijndael(void); +void ssh_rijndael_iv(EVP_CIPHER_CTX *, int, u_char *, u_int); #endif -#if !defined(EVP_CTRL_SET_ACSS_MODE) -# if (OPENSSL_VERSION_NUMBER >= 0x00907000L) -# define USE_CIPHER_ACSS 1 -extern const EVP_CIPHER *evp_acss(void); -# define EVP_acss evp_acss +#ifndef OPENSSL_HAVE_EVPCTR +#define EVP_aes_128_ctr evp_aes_128_ctr +#define EVP_aes_192_ctr evp_aes_128_ctr +#define EVP_aes_256_ctr evp_aes_128_ctr +const EVP_CIPHER *evp_aes_128_ctr(void); +void ssh_aes_ctr_iv(EVP_CIPHER_CTX *, int, u_char *, size_t); +#endif + +/* Avoid some #ifdef. Code that uses these is unreachable without GCM */ +#if !defined(OPENSSL_HAVE_EVPGCM) && !defined(EVP_CTRL_GCM_SET_IV_FIXED) +# define EVP_CTRL_GCM_SET_IV_FIXED -1 +# define EVP_CTRL_GCM_IV_GEN -1 +# define EVP_CTRL_GCM_SET_TAG -1 +# define EVP_CTRL_GCM_GET_TAG -1 +#endif + +/* Replace missing EVP_CIPHER_CTX_ctrl() with something that returns failure */ +#ifndef HAVE_EVP_CIPHER_CTX_CTRL +# ifdef OPENSSL_HAVE_EVPGCM +# error AES-GCM enabled without EVP_CIPHER_CTX_ctrl /* shouldn't happen */ # else -# define EVP_acss NULL +# define EVP_CIPHER_CTX_ctrl(a,b,c,d) (0) # endif #endif +#if OPENSSL_VERSION_NUMBER < 0x00907000L +#define EVP_X_STATE(evp) &(evp).c +#define EVP_X_STATE_LEN(evp) sizeof((evp).c) +#else +#define EVP_X_STATE(evp) (evp).cipher_data +#define EVP_X_STATE_LEN(evp) (evp).cipher->ctx_size +#endif + /* OpenSSL 0.9.8e returns cipher key len not context key len */ #if (OPENSSL_VERSION_NUMBER == 0x0090805fL) # define EVP_CIPHER_CTX_key_length(c) ((c)->key_len) @@ -125,6 +148,14 @@ int DSA_generate_parameters_ex(DSA *, int, const unsigned char *, int, int *, int RSA_generate_key_ex(RSA *, int, BIGNUM *, void *); # endif +# ifndef HAVE_EVP_DIGESTINIT_EX +int EVP_DigestInit_ex(EVP_MD_CTX *, const EVP_MD *, void *); +# endif + +# ifndef HAVE_EVP_DISESTFINAL_EX +int EVP_DigestFinal_ex(EVP_MD_CTX *, unsigned char *, unsigned int *); +# endif + int ssh_EVP_CipherInit(EVP_CIPHER_CTX *, const EVP_CIPHER *, unsigned char *, unsigned char *, int); int ssh_EVP_Cipher(EVP_CIPHER_CTX *, char *, char *, int); @@ -135,5 +166,13 @@ void ssh_OpenSSL_add_all_algorithms(void); # define HMAC_CTX_init(a) # endif +# ifndef HAVE_EVP_MD_CTX_INIT +# define EVP_MD_CTX_init(a) +# endif + +# ifndef HAVE_EVP_MD_CTX_CLEANUP +# define EVP_MD_CTX_cleanup(a) +# endif + #endif /* SSH_DONT_OVERLOAD_OPENSSL_FUNCS */ diff --git a/openbsd-compat/port-aix.c b/openbsd-compat/port-aix.c index 0bdefbf6..8da367d4 100644 --- a/openbsd-compat/port-aix.c +++ b/openbsd-compat/port-aix.c @@ -86,7 +86,7 @@ aix_usrinfo(struct passwd *pw) fatal("Couldn't set usrinfo: %s", strerror(errno)); debug3("AIX/UsrInfo: set len %d", i); - xfree(cp); + free(cp); } # ifdef WITH_AIXAUTHENTICATE @@ -215,16 +215,14 @@ sys_auth_passwd(Authctxt *ctxt, const char *password) default: /* user can't change(2) or other error (-1) */ logit("Password can't be changed for user %s: %.100s", name, msg); - if (msg) - xfree(msg); + free(msg); authsuccess = 0; } aix_restoreauthdb(); } - if (authmsg != NULL) - xfree(authmsg); + free(authmsg); return authsuccess; } @@ -269,7 +267,7 @@ sys_auth_allowed_user(struct passwd *pw, Buffer *loginmsg) if (!permitted) logit("Login restricted for %s: %.100s", pw->pw_name, msg); - xfree(msg); + free(msg); return permitted; } diff --git a/openbsd-compat/port-linux.c b/openbsd-compat/port-linux.c index ea8dff40..4637a7a3 100644 --- a/openbsd-compat/port-linux.c +++ b/openbsd-compat/port-linux.c @@ -1,4 +1,4 @@ -/* $Id: port-linux.c,v 1.16 2011/08/29 06:09:57 djm Exp $ */ +/* $Id: port-linux.c,v 1.18 2013/06/01 22:07:32 dtucker Exp $ */ /* * Copyright (c) 2005 Daniel Walsh <dwalsh@redhat.com> @@ -60,7 +60,7 @@ ssh_selinux_enabled(void) static security_context_t ssh_selinux_getctxbyname(char *pwname) { - security_context_t sc; + security_context_t sc = NULL; char *sename = NULL, *lvl = NULL; int r; @@ -86,6 +86,7 @@ ssh_selinux_getctxbyname(char *pwname) case 0: error("%s: Failed to get default SELinux security " "context for %s", __func__, pwname); + sc = NULL; break; default: fatal("%s: Failed to get default SELinux security " @@ -95,13 +96,11 @@ ssh_selinux_getctxbyname(char *pwname) } #ifdef HAVE_GETSEUSERBYNAME - if (sename != NULL) - xfree(sename); - if (lvl != NULL) - xfree(lvl); + free(sename); + free(lvl); #endif - return (sc); + return sc; } /* Set the execution context to the default for the specified user */ @@ -216,8 +215,8 @@ ssh_selinux_change_context(const char *newname) if (setcon(newctx) < 0) switchlog("%s: setcon %s from %s failed with %s", __func__, newctx, oldctx, strerror(errno)); - xfree(oldctx); - xfree(newctx); + free(oldctx); + free(newctx); } void diff --git a/openbsd-compat/setproctitle.c b/openbsd-compat/setproctitle.c index 2965f689..9f7ca14c 100644 --- a/openbsd-compat/setproctitle.c +++ b/openbsd-compat/setproctitle.c @@ -67,7 +67,8 @@ static size_t argv_env_len = 0; void compat_init_setproctitle(int argc, char *argv[]) { -#if defined(SPT_TYPE) && SPT_TYPE == SPT_REUSEARGV +#if !defined(HAVE_SETPROCTITLE) && \ + defined(SPT_TYPE) && SPT_TYPE == SPT_REUSEARGV extern char **environ; char *lastargv = NULL; char **envp = environ; @@ -125,6 +126,7 @@ setproctitle(const char *fmt, ...) va_list ap; char buf[1024], ptitle[1024]; size_t len; + int r; extern char *__progname; #if SPT_TYPE == SPT_PSTAT union pstun pst; @@ -137,13 +139,16 @@ setproctitle(const char *fmt, ...) strlcpy(buf, __progname, sizeof(buf)); + r = -1; va_start(ap, fmt); if (fmt != NULL) { len = strlcat(buf, ": ", sizeof(buf)); if (len < sizeof(buf)) - vsnprintf(buf + len, sizeof(buf) - len , fmt, ap); + r = vsnprintf(buf + len, sizeof(buf) - len , fmt, ap); } va_end(ap); + if (r == -1 || (size_t)r >= sizeof(buf) - len) + return; strnvis(ptitle, buf, sizeof(ptitle), VIS_CSTYLE|VIS_NL|VIS_TAB|VIS_OCTAL); diff --git a/openbsd-compat/strtoull.c b/openbsd-compat/strtoull.c new file mode 100644 index 00000000..f7c818c5 --- /dev/null +++ b/openbsd-compat/strtoull.c @@ -0,0 +1,110 @@ +/* $OpenBSD: strtoull.c,v 1.5 2005/08/08 08:05:37 espie Exp $ */ +/*- + * Copyright (c) 1992 The Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* OPENBSD ORIGINAL: lib/libc/stdlib/strtoull.c */ + +#include "includes.h" +#ifndef HAVE_STRTOULL + +#include <sys/types.h> + +#include <ctype.h> +#include <errno.h> +#include <limits.h> +#include <stdlib.h> + +/* + * Convert a string to an unsigned long long. + * + * Ignores `locale' stuff. Assumes that the upper and lower case + * alphabets and digits are each contiguous. + */ +unsigned long long +strtoull(const char *nptr, char **endptr, int base) +{ + const char *s; + unsigned long long acc, cutoff; + int c; + int neg, any, cutlim; + + /* + * See strtoq for comments as to the logic used. + */ + s = nptr; + do { + c = (unsigned char) *s++; + } while (isspace(c)); + if (c == '-') { + neg = 1; + c = *s++; + } else { + neg = 0; + if (c == '+') + c = *s++; + } + if ((base == 0 || base == 16) && + c == '0' && (*s == 'x' || *s == 'X')) { + c = s[1]; + s += 2; + base = 16; + } + if (base == 0) + base = c == '0' ? 8 : 10; + + cutoff = ULLONG_MAX / (unsigned long long)base; + cutlim = ULLONG_MAX % (unsigned long long)base; + for (acc = 0, any = 0;; c = (unsigned char) *s++) { + if (isdigit(c)) + c -= '0'; + else if (isalpha(c)) + c -= isupper(c) ? 'A' - 10 : 'a' - 10; + else + break; + if (c >= base) + break; + if (any < 0) + continue; + if (acc > cutoff || (acc == cutoff && c > cutlim)) { + any = -1; + acc = ULLONG_MAX; + errno = ERANGE; + } else { + any = 1; + acc *= (unsigned long long)base; + acc += c; + } + } + if (neg && any > 0) + acc = -acc; + if (endptr != 0) + *endptr = (char *) (any ? s - 1 : nptr); + return (acc); +} +#endif /* !HAVE_STRTOULL */ diff --git a/openbsd-compat/sys-queue.h b/openbsd-compat/sys-queue.h index 5cf0587b..28aaaa37 100644 --- a/openbsd-compat/sys-queue.h +++ b/openbsd-compat/sys-queue.h @@ -1,4 +1,4 @@ -/* $OpenBSD: queue.h,v 1.32 2007/04/30 18:42:34 pedro Exp $ */ +/* $OpenBSD: queue.h,v 1.36 2012/04/11 13:29:14 naddy Exp $ */ /* $NetBSD: queue.h,v 1.11 1996/05/16 05:17:14 mycroft Exp $ */ /* @@ -202,10 +202,10 @@ struct { \ (var) != SLIST_END(head); \ (var) = SLIST_NEXT(var, field)) -#define SLIST_FOREACH_PREVPTR(var, varp, head, field) \ - for ((varp) = &SLIST_FIRST((head)); \ - ((var) = *(varp)) != SLIST_END(head); \ - (varp) = &SLIST_NEXT((var), field)) +#define SLIST_FOREACH_SAFE(var, head, field, tvar) \ + for ((var) = SLIST_FIRST(head); \ + (var) && ((tvar) = SLIST_NEXT(var, field), 1); \ + (var) = (tvar)) /* * Singly-linked List functions. @@ -224,7 +224,7 @@ struct { \ (head)->slh_first = (elm); \ } while (0) -#define SLIST_REMOVE_NEXT(head, elm, field) do { \ +#define SLIST_REMOVE_AFTER(elm, field) do { \ (elm)->field.sle_next = (elm)->field.sle_next->field.sle_next; \ } while (0) @@ -276,6 +276,11 @@ struct { \ (var)!= LIST_END(head); \ (var) = LIST_NEXT(var, field)) +#define LIST_FOREACH_SAFE(var, head, field, tvar) \ + for ((var) = LIST_FIRST(head); \ + (var) && ((tvar) = LIST_NEXT(var, field), 1); \ + (var) = (tvar)) + /* * List functions. */ @@ -354,6 +359,11 @@ struct { \ (var) != SIMPLEQ_END(head); \ (var) = SIMPLEQ_NEXT(var, field)) +#define SIMPLEQ_FOREACH_SAFE(var, head, field, tvar) \ + for ((var) = SIMPLEQ_FIRST(head); \ + (var) && ((tvar) = SIMPLEQ_NEXT(var, field), 1); \ + (var) = (tvar)) + /* * Simple queue functions. */ @@ -385,6 +395,12 @@ struct { \ (head)->sqh_last = &(head)->sqh_first; \ } while (0) +#define SIMPLEQ_REMOVE_AFTER(head, elm, field) do { \ + if (((elm)->field.sqe_next = (elm)->field.sqe_next->field.sqe_next) \ + == NULL) \ + (head)->sqh_last = &(elm)->field.sqe_next; \ +} while (0) + /* * Tail queue definitions. */ @@ -422,11 +438,24 @@ struct { \ (var) != TAILQ_END(head); \ (var) = TAILQ_NEXT(var, field)) +#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \ + for ((var) = TAILQ_FIRST(head); \ + (var) != TAILQ_END(head) && \ + ((tvar) = TAILQ_NEXT(var, field), 1); \ + (var) = (tvar)) + + #define TAILQ_FOREACH_REVERSE(var, head, headname, field) \ for((var) = TAILQ_LAST(head, headname); \ (var) != TAILQ_END(head); \ (var) = TAILQ_PREV(var, headname, field)) +#define TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar) \ + for ((var) = TAILQ_LAST(head, headname); \ + (var) != TAILQ_END(head) && \ + ((tvar) = TAILQ_PREV(var, headname, field), 1); \ + (var) = (tvar)) + /* * Tail queue functions. */ @@ -526,11 +555,23 @@ struct { \ (var) != CIRCLEQ_END(head); \ (var) = CIRCLEQ_NEXT(var, field)) +#define CIRCLEQ_FOREACH_SAFE(var, head, field, tvar) \ + for ((var) = CIRCLEQ_FIRST(head); \ + (var) != CIRCLEQ_END(head) && \ + ((tvar) = CIRCLEQ_NEXT(var, field), 1); \ + (var) = (tvar)) + #define CIRCLEQ_FOREACH_REVERSE(var, head, field) \ for((var) = CIRCLEQ_LAST(head); \ (var) != CIRCLEQ_END(head); \ (var) = CIRCLEQ_PREV(var, field)) +#define CIRCLEQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar) \ + for ((var) = CIRCLEQ_LAST(head, headname); \ + (var) != CIRCLEQ_END(head) && \ + ((tvar) = CIRCLEQ_PREV(var, headname, field), 1); \ + (var) = (tvar)) + /* * Circular queue functions. */ diff --git a/openbsd-compat/sys-tree.h b/openbsd-compat/sys-tree.h index d4949b5e..7f7546ec 100644 --- a/openbsd-compat/sys-tree.h +++ b/openbsd-compat/sys-tree.h @@ -1,4 +1,4 @@ -/* $OpenBSD: tree.h,v 1.10 2007/10/29 23:49:41 djm Exp $ */ +/* $OpenBSD: tree.h,v 1.13 2011/07/09 00:19:45 pirofti Exp $ */ /* * Copyright 2002 Niels Provos <provos@citi.umich.edu> * All rights reserved. @@ -26,6 +26,11 @@ /* OPENBSD ORIGINAL: sys/sys/tree.h */ +#include "config.h" +#ifdef NO_ATTRIBUTE_ON_RETURN_TYPE +# define __attribute__(x) +#endif + #ifndef _SYS_TREE_H_ #define _SYS_TREE_H_ @@ -331,7 +336,7 @@ struct { \ } while (0) #ifndef RB_AUGMENT -#define RB_AUGMENT(x) +#define RB_AUGMENT(x) do {} while (0) #endif #define RB_ROTATE_LEFT(head, elm, tmp, field) do { \ @@ -375,21 +380,31 @@ struct { \ } while (0) /* Generates prototypes and inline functions */ -#define RB_PROTOTYPE(name, type, field, cmp) \ -void name##_RB_INSERT_COLOR(struct name *, struct type *); \ -void name##_RB_REMOVE_COLOR(struct name *, struct type *, struct type *);\ -struct type *name##_RB_REMOVE(struct name *, struct type *); \ -struct type *name##_RB_INSERT(struct name *, struct type *); \ -struct type *name##_RB_FIND(struct name *, struct type *); \ -struct type *name##_RB_NEXT(struct type *); \ -struct type *name##_RB_MINMAX(struct name *, int); - +#define RB_PROTOTYPE(name, type, field, cmp) \ + RB_PROTOTYPE_INTERNAL(name, type, field, cmp,) +#define RB_PROTOTYPE_STATIC(name, type, field, cmp) \ + RB_PROTOTYPE_INTERNAL(name, type, field, cmp, __attribute__((__unused__)) static) +#define RB_PROTOTYPE_INTERNAL(name, type, field, cmp, attr) \ +attr void name##_RB_INSERT_COLOR(struct name *, struct type *); \ +attr void name##_RB_REMOVE_COLOR(struct name *, struct type *, struct type *);\ +attr struct type *name##_RB_REMOVE(struct name *, struct type *); \ +attr struct type *name##_RB_INSERT(struct name *, struct type *); \ +attr struct type *name##_RB_FIND(struct name *, struct type *); \ +attr struct type *name##_RB_NFIND(struct name *, struct type *); \ +attr struct type *name##_RB_NEXT(struct type *); \ +attr struct type *name##_RB_PREV(struct type *); \ +attr struct type *name##_RB_MINMAX(struct name *, int); \ + \ /* Main rb operation. * Moves node close to the key of elm to top */ -#define RB_GENERATE(name, type, field, cmp) \ -void \ +#define RB_GENERATE(name, type, field, cmp) \ + RB_GENERATE_INTERNAL(name, type, field, cmp,) +#define RB_GENERATE_STATIC(name, type, field, cmp) \ + RB_GENERATE_INTERNAL(name, type, field, cmp, __attribute__((__unused__)) static) +#define RB_GENERATE_INTERNAL(name, type, field, cmp, attr) \ +attr void \ name##_RB_INSERT_COLOR(struct name *head, struct type *elm) \ { \ struct type *parent, *gparent, *tmp; \ @@ -433,7 +448,7 @@ name##_RB_INSERT_COLOR(struct name *head, struct type *elm) \ RB_COLOR(head->rbh_root, field) = RB_BLACK; \ } \ \ -void \ +attr void \ name##_RB_REMOVE_COLOR(struct name *head, struct type *parent, struct type *elm) \ { \ struct type *tmp; \ @@ -509,7 +524,7 @@ name##_RB_REMOVE_COLOR(struct name *head, struct type *parent, struct type *elm) RB_COLOR(elm, field) = RB_BLACK; \ } \ \ -struct type * \ +attr struct type * \ name##_RB_REMOVE(struct name *head, struct type *elm) \ { \ struct type *child, *parent, *old = elm; \ @@ -577,7 +592,7 @@ color: \ } \ \ /* Inserts a node into the RB tree */ \ -struct type * \ +attr struct type * \ name##_RB_INSERT(struct name *head, struct type *elm) \ { \ struct type *tmp; \ @@ -608,7 +623,7 @@ name##_RB_INSERT(struct name *head, struct type *elm) \ } \ \ /* Finds the node with the same key as elm */ \ -struct type * \ +attr struct type * \ name##_RB_FIND(struct name *head, struct type *elm) \ { \ struct type *tmp = RB_ROOT(head); \ @@ -625,7 +640,29 @@ name##_RB_FIND(struct name *head, struct type *elm) \ return (NULL); \ } \ \ -struct type * \ +/* Finds the first node greater than or equal to the search key */ \ +attr struct type * \ +name##_RB_NFIND(struct name *head, struct type *elm) \ +{ \ + struct type *tmp = RB_ROOT(head); \ + struct type *res = NULL; \ + int comp; \ + while (tmp) { \ + comp = cmp(elm, tmp); \ + if (comp < 0) { \ + res = tmp; \ + tmp = RB_LEFT(tmp, field); \ + } \ + else if (comp > 0) \ + tmp = RB_RIGHT(tmp, field); \ + else \ + return (tmp); \ + } \ + return (res); \ +} \ + \ +/* ARGSUSED */ \ +attr struct type * \ name##_RB_NEXT(struct type *elm) \ { \ if (RB_RIGHT(elm, field)) { \ @@ -646,7 +683,29 @@ name##_RB_NEXT(struct type *elm) \ return (elm); \ } \ \ -struct type * \ +/* ARGSUSED */ \ +attr struct type * \ +name##_RB_PREV(struct type *elm) \ +{ \ + if (RB_LEFT(elm, field)) { \ + elm = RB_LEFT(elm, field); \ + while (RB_RIGHT(elm, field)) \ + elm = RB_RIGHT(elm, field); \ + } else { \ + if (RB_PARENT(elm, field) && \ + (elm == RB_RIGHT(RB_PARENT(elm, field), field))) \ + elm = RB_PARENT(elm, field); \ + else { \ + while (RB_PARENT(elm, field) && \ + (elm == RB_LEFT(RB_PARENT(elm, field), field)))\ + elm = RB_PARENT(elm, field); \ + elm = RB_PARENT(elm, field); \ + } \ + } \ + return (elm); \ +} \ + \ +attr struct type * \ name##_RB_MINMAX(struct name *head, int val) \ { \ struct type *tmp = RB_ROOT(head); \ @@ -667,7 +726,9 @@ name##_RB_MINMAX(struct name *head, int val) \ #define RB_INSERT(name, x, y) name##_RB_INSERT(x, y) #define RB_REMOVE(name, x, y) name##_RB_REMOVE(x, y) #define RB_FIND(name, x, y) name##_RB_FIND(x, y) +#define RB_NFIND(name, x, y) name##_RB_NFIND(x, y) #define RB_NEXT(name, x, y) name##_RB_NEXT(y) +#define RB_PREV(name, x, y) name##_RB_PREV(y) #define RB_MIN(name, x) name##_RB_MINMAX(x, RB_NEGINF) #define RB_MAX(name, x) name##_RB_MINMAX(x, RB_INF) @@ -676,4 +737,19 @@ name##_RB_MINMAX(struct name *head, int val) \ (x) != NULL; \ (x) = name##_RB_NEXT(x)) +#define RB_FOREACH_SAFE(x, name, head, y) \ + for ((x) = RB_MIN(name, head); \ + ((x) != NULL) && ((y) = name##_RB_NEXT(x), 1); \ + (x) = (y)) + +#define RB_FOREACH_REVERSE(x, name, head) \ + for ((x) = RB_MAX(name, head); \ + (x) != NULL; \ + (x) = name##_RB_PREV(x)) + +#define RB_FOREACH_REVERSE_SAFE(x, name, head, y) \ + for ((x) = RB_MAX(name, head); \ + ((x) != NULL) && ((y) = name##_RB_PREV(x), 1); \ + (x) = (y)) + #endif /* _SYS_TREE_H_ */ diff --git a/openbsd-compat/vis.c b/openbsd-compat/vis.c index 3a087b34..f6f5665c 100644 --- a/openbsd-compat/vis.c +++ b/openbsd-compat/vis.c @@ -31,7 +31,7 @@ /* OPENBSD ORIGINAL: lib/libc/gen/vis.c */ #include "includes.h" -#if !defined(HAVE_STRNVIS) +#if !defined(HAVE_STRNVIS) || defined(BROKEN_STRNVIS) #include <ctype.h> #include <string.h> diff --git a/openbsd-compat/vis.h b/openbsd-compat/vis.h index 3898a9e7..d1286c99 100644 --- a/openbsd-compat/vis.h +++ b/openbsd-compat/vis.h @@ -35,7 +35,7 @@ /* OPENBSD ORIGINAL: include/vis.h */ #include "includes.h" -#if !defined(HAVE_STRNVIS) +#if !defined(HAVE_STRNVIS) || defined(BROKEN_STRNVIS) #ifndef _VIS_H_ #define _VIS_H_ @@ -92,4 +92,4 @@ ssize_t strnunvis(char *, const char *, size_t) #endif /* !_VIS_H_ */ -#endif /* !HAVE_STRNVIS */ +#endif /* !HAVE_STRNVIS || BROKEN_STRNVIS */ diff --git a/openbsd-compat/xcrypt.c b/openbsd-compat/xcrypt.c index 6291e288..c8aea461 100644 --- a/openbsd-compat/xcrypt.c +++ b/openbsd-compat/xcrypt.c @@ -55,7 +55,12 @@ # if defined(HAVE_MD5_PASSWORDS) && !defined(HAVE_MD5_CRYPT) # include "md5crypt.h" -# endif +# endif + +# if !defined(HAVE_CRYPT) && defined(HAVE_DES_CRYPT) +# include <openssl/des.h> +# define crypt DES_crypt +# endif char * xcrypt(const char *password, const char *salt) @@ -1,4 +1,4 @@ -/* $OpenBSD: packet.c,v 1.176 2012/01/25 19:40:09 markus Exp $ */ +/* $OpenBSD: packet.c,v 1.191 2013/12/06 13:34:54 markus Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -58,6 +58,7 @@ #include <string.h> #include <unistd.h> #include <signal.h> +#include <time.h> #include "xmalloc.h" #include "buffer.h" @@ -165,9 +166,14 @@ struct session_state { Newkeys *newkeys[MODE_MAX]; struct packet_state p_read, p_send; + /* Volume-based rekeying */ u_int64_t max_blocks_in, max_blocks_out; u_int32_t rekey_limit; + /* Time-based rekeying */ + time_t rekey_interval; /* how often in seconds */ + time_t rekey_time; /* time of last rekeying */ + /* Session key for protocol v1 */ u_char ssh1_key[SSH_SESSION_KEY_LENGTH]; u_int ssh1_keylen; @@ -215,7 +221,7 @@ alloc_session_state(void) void packet_set_connection(int fd_in, int fd_out) { - Cipher *none = cipher_by_name("none"); + const Cipher *none = cipher_by_name("none"); if (none == NULL) fatal("packet_set_connection: cannot load cipher 'none'"); @@ -275,7 +281,7 @@ packet_stop_discard(void) static void packet_start_discard(Enc *enc, Mac *mac, u_int packet_length, u_int discard) { - if (enc == NULL || !cipher_is_cbc(enc->cipher)) + if (enc == NULL || !cipher_is_cbc(enc->cipher) || (mac && mac->etm)) packet_disconnect("Packet corrupt"); if (packet_length != PACKET_MAX_SIZE && mac && mac->enabled) active_state->packet_discard_mac = mac; @@ -432,8 +438,6 @@ packet_connection_af(void) if (getsockname(active_state->connection_out, (struct sockaddr *)&to, &tolen) < 0) return 0; - if (to.ss_family == AF_INET) - return 1; #ifdef IPV4_IN_IPV6 if (to.ss_family == AF_INET6 && IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)&to)->sin6_addr)) @@ -547,7 +551,7 @@ packet_start_compression(int level) void packet_set_encryption_key(const u_char *key, u_int keylen, int number) { - Cipher *cipher = cipher_by_number(number); + const Cipher *cipher = cipher_by_number(number); if (cipher == NULL) fatal("packet_set_encryption_key: unknown cipher number %d", number); @@ -709,9 +713,10 @@ packet_send1(void) buffer_append(&active_state->output, buf, 4); cp = buffer_append_space(&active_state->output, buffer_len(&active_state->outgoing_packet)); - cipher_crypt(&active_state->send_context, cp, + if (cipher_crypt(&active_state->send_context, 0, cp, buffer_ptr(&active_state->outgoing_packet), - buffer_len(&active_state->outgoing_packet)); + buffer_len(&active_state->outgoing_packet), 0, 0) != 0) + fatal("%s: cipher_crypt failed", __func__); #ifdef PACKET_DEBUG fprintf(stderr, "encrypted: "); @@ -759,13 +764,16 @@ set_newkeys(int mode) mac = &active_state->newkeys[mode]->mac; comp = &active_state->newkeys[mode]->comp; mac_clear(mac); - xfree(enc->name); - xfree(enc->iv); - xfree(enc->key); - xfree(mac->name); - xfree(mac->key); - xfree(comp->name); - xfree(active_state->newkeys[mode]); + memset(enc->iv, 0, enc->iv_len); + memset(enc->key, 0, enc->key_len); + memset(mac->key, 0, mac->key_len); + free(enc->name); + free(enc->iv); + free(enc->key); + free(mac->name); + free(mac->key); + free(comp->name); + free(active_state->newkeys[mode]); } active_state->newkeys[mode] = kex_get_newkeys(mode); if (active_state->newkeys[mode] == NULL) @@ -773,11 +781,11 @@ set_newkeys(int mode) enc = &active_state->newkeys[mode]->enc; mac = &active_state->newkeys[mode]->mac; comp = &active_state->newkeys[mode]->comp; - if (mac_init(mac) == 0) + if (cipher_authlen(enc->cipher) == 0 && mac_init(mac) == 0) mac->enabled = 1; DBG(debug("cipher_init_context: %d", mode)); cipher_init(cc, enc->cipher, enc->key, enc->key_len, - enc->iv, enc->block_size, crypt_type); + enc->iv, enc->iv_len, crypt_type); /* Deleting the keys does not gain extra security */ /* memset(enc->iv, 0, enc->block_size); memset(enc->key, 0, enc->key_len); @@ -844,9 +852,8 @@ static void packet_send2_wrapped(void) { u_char type, *cp, *macbuf = NULL; - u_char padlen, pad; - u_int packet_length = 0; - u_int i, len; + u_char padlen, pad = 0; + u_int i, len, authlen = 0, aadlen = 0; u_int32_t rnd = 0; Enc *enc = NULL; Mac *mac = NULL; @@ -857,8 +864,12 @@ packet_send2_wrapped(void) enc = &active_state->newkeys[MODE_OUT]->enc; mac = &active_state->newkeys[MODE_OUT]->mac; comp = &active_state->newkeys[MODE_OUT]->comp; + /* disable mac for authenticated encryption */ + if ((authlen = cipher_authlen(enc->cipher)) != 0) + mac = NULL; } block_size = enc ? enc->block_size : 8; + aadlen = (mac && mac->enabled && mac->etm) || authlen ? 4 : 0; cp = buffer_ptr(&active_state->outgoing_packet); type = cp[5]; @@ -891,6 +902,7 @@ packet_send2_wrapped(void) * calc size of padding, alloc space, get random data, * minimum padding is 4 bytes */ + len -= aadlen; /* packet length is not encrypted for EtM modes */ padlen = block_size - (len % block_size); if (padlen < 4) padlen += block_size; @@ -918,29 +930,38 @@ packet_send2_wrapped(void) /* clear padding */ memset(cp, 0, padlen); } - /* packet_length includes payload, padding and padding length field */ - packet_length = buffer_len(&active_state->outgoing_packet) - 4; + /* sizeof (packet_len + pad_len + payload + padding) */ + len = buffer_len(&active_state->outgoing_packet); cp = buffer_ptr(&active_state->outgoing_packet); - put_u32(cp, packet_length); + /* packet_length includes payload, padding and padding length field */ + put_u32(cp, len - 4); cp[4] = padlen; - DBG(debug("send: len %d (includes padlen %d)", packet_length+4, padlen)); + DBG(debug("send: len %d (includes padlen %d, aadlen %d)", + len, padlen, aadlen)); /* compute MAC over seqnr and packet(length fields, payload, padding) */ - if (mac && mac->enabled) { + if (mac && mac->enabled && !mac->etm) { macbuf = mac_compute(mac, active_state->p_send.seqnr, - buffer_ptr(&active_state->outgoing_packet), - buffer_len(&active_state->outgoing_packet)); + buffer_ptr(&active_state->outgoing_packet), len); DBG(debug("done calc MAC out #%d", active_state->p_send.seqnr)); } /* encrypt packet and append to output buffer. */ - cp = buffer_append_space(&active_state->output, - buffer_len(&active_state->outgoing_packet)); - cipher_crypt(&active_state->send_context, cp, - buffer_ptr(&active_state->outgoing_packet), - buffer_len(&active_state->outgoing_packet)); + cp = buffer_append_space(&active_state->output, len + authlen); + if (cipher_crypt(&active_state->send_context, active_state->p_send.seqnr, + cp, buffer_ptr(&active_state->outgoing_packet), + len - aadlen, aadlen, authlen) != 0) + fatal("%s: cipher_crypt failed", __func__); /* append unencrypted MAC */ - if (mac && mac->enabled) + if (mac && mac->enabled) { + if (mac->etm) { + /* EtM: compute mac over aadlen + cipher text */ + macbuf = mac_compute(mac, + active_state->p_send.seqnr, cp, len); + DBG(debug("done calc MAC(EtM) out #%d", + active_state->p_send.seqnr)); + } buffer_append(&active_state->output, macbuf, mac->mac_len); + } #ifdef PACKET_DEBUG fprintf(stderr, "encrypted: "); buffer_dump(&active_state->output); @@ -951,8 +972,8 @@ packet_send2_wrapped(void) if (++active_state->p_send.packets == 0) if (!(datafellows & SSH_BUG_NOREKEY)) fatal("XXX too many packets with same key"); - active_state->p_send.blocks += (packet_length + 4) / block_size; - active_state->p_send.bytes += packet_length + 4; + active_state->p_send.blocks += len / block_size; + active_state->p_send.bytes += len; buffer_clear(&active_state->outgoing_packet); if (type == SSH2_MSG_NEWKEYS) @@ -977,7 +998,7 @@ packet_send2(void) (type == SSH2_MSG_SERVICE_REQUEST) || (type == SSH2_MSG_SERVICE_ACCEPT)) { debug("enqueue packet: %u", type); - p = xmalloc(sizeof(*p)); + p = xcalloc(1, sizeof(*p)); p->type = type; memcpy(&p->payload, &active_state->outgoing_packet, sizeof(Buffer)); @@ -996,6 +1017,7 @@ packet_send2(void) /* after a NEWKEYS message we can send the complete queue */ if (type == SSH2_MSG_NEWKEYS) { active_state->rekeying = 0; + active_state->rekey_time = monotime(); while ((p = TAILQ_FIRST(&active_state->outgoing))) { type = p->type; debug("dequeue packet: %u", type); @@ -1003,7 +1025,7 @@ packet_send2(void) memcpy(&active_state->outgoing_packet, &p->payload, sizeof(Buffer)); TAILQ_REMOVE(&active_state->outgoing, p, next); - xfree(p); + free(p); packet_send2_wrapped(); } } @@ -1028,7 +1050,7 @@ packet_send(void) int packet_read_seqnr(u_int32_t *seqnr_p) { - int type, len, ret, ms_remain, cont; + int type, len, ret, cont, ms_remain = 0; fd_set *setp; char buf[8192]; struct timeval timeout, start, *timeoutp = NULL; @@ -1053,7 +1075,7 @@ packet_read_seqnr(u_int32_t *seqnr_p) packet_check_eom(); /* If we got a packet, return it. */ if (type != SSH_MSG_NONE) { - xfree(setp); + free(setp); return type; } /* @@ -1188,8 +1210,9 @@ packet_read_poll1(void) /* Decrypt data to incoming_packet. */ buffer_clear(&active_state->incoming_packet); cp = buffer_append_space(&active_state->incoming_packet, padded_len); - cipher_crypt(&active_state->receive_context, cp, - buffer_ptr(&active_state->input), padded_len); + if (cipher_crypt(&active_state->receive_context, 0, cp, + buffer_ptr(&active_state->input), padded_len, 0, 0) != 0) + fatal("%s: cipher_crypt failed", __func__); buffer_consume(&active_state->input, padded_len); @@ -1237,8 +1260,8 @@ static int packet_read_poll2(u_int32_t *seqnr_p) { u_int padlen, need; - u_char *macbuf, *cp, type; - u_int maclen, block_size; + u_char *macbuf = NULL, *cp, type; + u_int maclen, authlen = 0, aadlen = 0, block_size; Enc *enc = NULL; Mac *mac = NULL; Comp *comp = NULL; @@ -1250,11 +1273,31 @@ packet_read_poll2(u_int32_t *seqnr_p) enc = &active_state->newkeys[MODE_IN]->enc; mac = &active_state->newkeys[MODE_IN]->mac; comp = &active_state->newkeys[MODE_IN]->comp; + /* disable mac for authenticated encryption */ + if ((authlen = cipher_authlen(enc->cipher)) != 0) + mac = NULL; } maclen = mac && mac->enabled ? mac->mac_len : 0; block_size = enc ? enc->block_size : 8; + aadlen = (mac && mac->enabled && mac->etm) || authlen ? 4 : 0; - if (active_state->packlen == 0) { + if (aadlen && active_state->packlen == 0) { + if (cipher_get_length(&active_state->receive_context, + &active_state->packlen, + active_state->p_read.seqnr, + buffer_ptr(&active_state->input), + buffer_len(&active_state->input)) != 0) + return SSH_MSG_NONE; + if (active_state->packlen < 1 + 4 || + active_state->packlen > PACKET_MAX_SIZE) { +#ifdef PACKET_DEBUG + buffer_dump(&active_state->input); +#endif + logit("Bad packet length %u.", active_state->packlen); + packet_disconnect("Packet corrupt"); + } + buffer_clear(&active_state->incoming_packet); + } else if (active_state->packlen == 0) { /* * check if input size is less than the cipher block size, * decrypt first block and extract length of incoming packet @@ -1264,8 +1307,10 @@ packet_read_poll2(u_int32_t *seqnr_p) buffer_clear(&active_state->incoming_packet); cp = buffer_append_space(&active_state->incoming_packet, block_size); - cipher_crypt(&active_state->receive_context, cp, - buffer_ptr(&active_state->input), block_size); + if (cipher_crypt(&active_state->receive_context, + active_state->p_read.seqnr, cp, + buffer_ptr(&active_state->input), block_size, 0, 0) != 0) + fatal("Decryption integrity check failed"); cp = buffer_ptr(&active_state->incoming_packet); active_state->packlen = get_u32(cp); if (active_state->packlen < 1 + 4 || @@ -1278,13 +1323,21 @@ packet_read_poll2(u_int32_t *seqnr_p) PACKET_MAX_SIZE); return SSH_MSG_NONE; } - DBG(debug("input: packet len %u", active_state->packlen+4)); buffer_consume(&active_state->input, block_size); } - /* we have a partial packet of block_size bytes */ - need = 4 + active_state->packlen - block_size; - DBG(debug("partial packet %d, need %d, maclen %d", block_size, - need, maclen)); + DBG(debug("input: packet len %u", active_state->packlen+4)); + if (aadlen) { + /* only the payload is encrypted */ + need = active_state->packlen; + } else { + /* + * the payload size and the payload are encrypted, but we + * have a partial packet of block_size bytes + */ + need = 4 + active_state->packlen - block_size; + } + DBG(debug("partial packet: block %d, need %d, maclen %d, authlen %d," + " aadlen %d", block_size, need, maclen, authlen, aadlen)); if (need % block_size != 0) { logit("padding error: need %d block %d mod %d", need, block_size, need % block_size); @@ -1294,26 +1347,37 @@ packet_read_poll2(u_int32_t *seqnr_p) } /* * check if the entire packet has been received and - * decrypt into incoming_packet + * decrypt into incoming_packet: + * 'aadlen' bytes are unencrypted, but authenticated. + * 'need' bytes are encrypted, followed by either + * 'authlen' bytes of authentication tag or + * 'maclen' bytes of message authentication code. */ - if (buffer_len(&active_state->input) < need + maclen) + if (buffer_len(&active_state->input) < aadlen + need + authlen + maclen) return SSH_MSG_NONE; #ifdef PACKET_DEBUG fprintf(stderr, "read_poll enc/full: "); buffer_dump(&active_state->input); #endif - cp = buffer_append_space(&active_state->incoming_packet, need); - cipher_crypt(&active_state->receive_context, cp, - buffer_ptr(&active_state->input), need); - buffer_consume(&active_state->input, need); + /* EtM: compute mac over encrypted input */ + if (mac && mac->enabled && mac->etm) + macbuf = mac_compute(mac, active_state->p_read.seqnr, + buffer_ptr(&active_state->input), aadlen + need); + cp = buffer_append_space(&active_state->incoming_packet, aadlen + need); + if (cipher_crypt(&active_state->receive_context, + active_state->p_read.seqnr, cp, + buffer_ptr(&active_state->input), need, aadlen, authlen) != 0) + fatal("Decryption integrity check failed"); + buffer_consume(&active_state->input, aadlen + need + authlen); /* * compute MAC over seqnr and packet, * increment sequence number for incoming packet */ if (mac && mac->enabled) { - macbuf = mac_compute(mac, active_state->p_read.seqnr, - buffer_ptr(&active_state->incoming_packet), - buffer_len(&active_state->incoming_packet)); + if (!mac->etm) + macbuf = mac_compute(mac, active_state->p_read.seqnr, + buffer_ptr(&active_state->incoming_packet), + buffer_len(&active_state->incoming_packet)); if (timingsafe_bcmp(macbuf, buffer_ptr(&active_state->input), mac->mac_len) != 0) { logit("Corrupted MAC on input."); @@ -1405,16 +1469,20 @@ packet_read_poll_seqnr(u_int32_t *seqnr_p) packet_get_char(); msg = packet_get_string(NULL); debug("Remote: %.900s", msg); - xfree(msg); + free(msg); msg = packet_get_string(NULL); - xfree(msg); + free(msg); break; case SSH2_MSG_DISCONNECT: reason = packet_get_int(); msg = packet_get_string(NULL); - logit("Received disconnect from %s: %u: %.400s", + /* Ignore normal client exit notifications */ + do_log2(active_state->server_side && + reason == SSH2_DISCONNECT_BY_APPLICATION ? + SYSLOG_LEVEL_INFO : SYSLOG_LEVEL_ERROR, + "Received disconnect from %s: %u: %.400s", get_remote_ipaddr(), reason, msg); - xfree(msg); + free(msg); cleanup_exit(255); break; case SSH2_MSG_UNIMPLEMENTED: @@ -1428,22 +1496,23 @@ packet_read_poll_seqnr(u_int32_t *seqnr_p) } else { type = packet_read_poll1(); switch (type) { + case SSH_MSG_NONE: + return SSH_MSG_NONE; case SSH_MSG_IGNORE: break; case SSH_MSG_DEBUG: msg = packet_get_string(NULL); debug("Remote: %.900s", msg); - xfree(msg); + free(msg); break; case SSH_MSG_DISCONNECT: msg = packet_get_string(NULL); - logit("Received disconnect from %s: %.400s", + error("Received disconnect from %s: %.400s", get_remote_ipaddr(), msg); cleanup_exit(255); break; default: - if (type) - DBG(debug("received packet type %d", type)); + DBG(debug("received packet type %d", type)); return type; } } @@ -1680,7 +1749,7 @@ void packet_write_wait(void) { fd_set *setp; - int ret, ms_remain; + int ret, ms_remain = 0; struct timeval start, timeout, *timeoutp = NULL; setp = (fd_set *)xcalloc(howmany(active_state->connection_out + 1, @@ -1721,7 +1790,7 @@ packet_write_wait(void) } packet_write_poll(); } - xfree(setp); + free(setp); } /* Returns true if there is buffered data to write to the connection. */ @@ -1881,13 +1950,33 @@ packet_need_rekeying(void) (active_state->max_blocks_out && (active_state->p_send.blocks > active_state->max_blocks_out)) || (active_state->max_blocks_in && - (active_state->p_read.blocks > active_state->max_blocks_in)); + (active_state->p_read.blocks > active_state->max_blocks_in)) || + (active_state->rekey_interval != 0 && active_state->rekey_time + + active_state->rekey_interval <= monotime()); } void -packet_set_rekey_limit(u_int32_t bytes) +packet_set_rekey_limits(u_int32_t bytes, time_t seconds) { + debug3("rekey after %lld bytes, %d seconds", (long long)bytes, + (int)seconds); active_state->rekey_limit = bytes; + active_state->rekey_interval = seconds; + /* + * We set the time here so that in post-auth privsep slave we count + * from the completion of the authentication. + */ + active_state->rekey_time = monotime(); +} + +time_t +packet_get_rekey_timeout(void) +{ + time_t seconds; + + seconds = active_state->rekey_time + active_state->rekey_interval - + monotime(); + return (seconds <= 0 ? 1 : seconds); } void @@ -1,4 +1,4 @@ -/* $OpenBSD: packet.h,v 1.57 2012/01/25 19:40:09 markus Exp $ */ +/* $OpenBSD: packet.h,v 1.59 2013/07/12 00:19:59 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -71,7 +71,7 @@ void *packet_get_raw(u_int *length_ptr); void *packet_get_string(u_int *length_ptr); char *packet_get_cstring(u_int *length_ptr); void *packet_get_string_ptr(u_int *length_ptr); -void packet_disconnect(const char *fmt,...) __attribute__((format(printf, 1, 2))); +void packet_disconnect(const char *fmt,...) __attribute__((noreturn)) __attribute__((format(printf, 1, 2))); void packet_send_debug(const char *fmt,...) __attribute__((format(printf, 1, 2))); void set_newkeys(int mode); @@ -115,7 +115,8 @@ do { \ } while (0) int packet_need_rekeying(void); -void packet_set_rekey_limit(u_int32_t); +void packet_set_rekey_limits(u_int32_t, time_t); +time_t packet_get_rekey_timeout(void); void packet_backup_state(void); void packet_restore_state(void); diff --git a/pathnames.h b/pathnames.h index c3d9abff..ec89fc66 100644 --- a/pathnames.h +++ b/pathnames.h @@ -1,4 +1,4 @@ -/* $OpenBSD: pathnames.h,v 1.22 2011/05/23 03:30:07 djm Exp $ */ +/* $OpenBSD: pathnames.h,v 1.24 2013/12/06 13:39:49 markus Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -39,6 +39,7 @@ #define _PATH_HOST_KEY_FILE SSHDIR "/ssh_host_key" #define _PATH_HOST_DSA_KEY_FILE SSHDIR "/ssh_host_dsa_key" #define _PATH_HOST_ECDSA_KEY_FILE SSHDIR "/ssh_host_ecdsa_key" +#define _PATH_HOST_ED25519_KEY_FILE SSHDIR "/ssh_host_ed25519_key" #define _PATH_HOST_RSA_KEY_FILE SSHDIR "/ssh_host_rsa_key" #define _PATH_DH_MODULI SSHDIR "/moduli" /* Backwards compatibility */ @@ -65,18 +66,19 @@ * readable by anyone except the user him/herself, though this does not * contain anything particularly secret. */ -#define _PATH_SSH_USER_HOSTFILE "~/.ssh/known_hosts" +#define _PATH_SSH_USER_HOSTFILE "~/" _PATH_SSH_USER_DIR "/known_hosts" /* backward compat for protocol 2 */ -#define _PATH_SSH_USER_HOSTFILE2 "~/.ssh/known_hosts2" +#define _PATH_SSH_USER_HOSTFILE2 "~/" _PATH_SSH_USER_DIR "/known_hosts2" /* * Name of the default file containing client-side authentication key. This * file should only be readable by the user him/herself. */ -#define _PATH_SSH_CLIENT_IDENTITY ".ssh/identity" -#define _PATH_SSH_CLIENT_ID_DSA ".ssh/id_dsa" -#define _PATH_SSH_CLIENT_ID_ECDSA ".ssh/id_ecdsa" -#define _PATH_SSH_CLIENT_ID_RSA ".ssh/id_rsa" +#define _PATH_SSH_CLIENT_IDENTITY _PATH_SSH_USER_DIR "/identity" +#define _PATH_SSH_CLIENT_ID_DSA _PATH_SSH_USER_DIR "/id_dsa" +#define _PATH_SSH_CLIENT_ID_ECDSA _PATH_SSH_USER_DIR "/id_ecdsa" +#define _PATH_SSH_CLIENT_ID_RSA _PATH_SSH_USER_DIR "/id_rsa" +#define _PATH_SSH_CLIENT_ID_ED25519 _PATH_SSH_USER_DIR "/id_ed25519" /* * Configuration file in user's home directory. This file need not be @@ -84,7 +86,7 @@ * particularly secret. If the user's home directory resides on an NFS * volume where root is mapped to nobody, this may need to be world-readable. */ -#define _PATH_SSH_USER_CONFFILE ".ssh/config" +#define _PATH_SSH_USER_CONFFILE _PATH_SSH_USER_DIR "/config" /* * File containing a list of those rsa keys that permit logging in as this @@ -94,10 +96,10 @@ * may need to be world-readable. (This file is read by the daemon which is * running as root.) */ -#define _PATH_SSH_USER_PERMITTED_KEYS ".ssh/authorized_keys" +#define _PATH_SSH_USER_PERMITTED_KEYS _PATH_SSH_USER_DIR "/authorized_keys" /* backward compat for protocol v2 */ -#define _PATH_SSH_USER_PERMITTED_KEYS2 ".ssh/authorized_keys2" +#define _PATH_SSH_USER_PERMITTED_KEYS2 _PATH_SSH_USER_DIR "/authorized_keys2" /* * Per-user and system-wide ssh "rc" files. These files are executed with @@ -105,7 +107,7 @@ * passed "proto cookie" as arguments if X11 forwarding with spoofing is in * use. xauth will be run if neither of these exists. */ -#define _PATH_SSH_USER_RC ".ssh/rc" +#define _PATH_SSH_USER_RC _PATH_SSH_USER_DIR "/rc" #define _PATH_SSH_SYSTEM_RC SSHDIR "/sshrc" /* @@ -1,4 +1,4 @@ -/* $OpenBSD: pkcs11.h,v 1.2 2010/02/24 06:12:53 djm Exp $ */ +/* $OpenBSD: pkcs11.h,v 1.3 2013/11/26 19:15:09 deraadt Exp $ */ /* pkcs11.h Copyright 2006, 2007 g10 Code GmbH Copyright 2006 Andreas Jellinghaus @@ -319,7 +319,7 @@ typedef unsigned long ck_object_class_t; #define CKO_HW_FEATURE (5) #define CKO_DOMAIN_PARAMETERS (6) #define CKO_MECHANISM (7) -#define CKO_VENDOR_DEFINED ((unsigned long) (1 << 31)) +#define CKO_VENDOR_DEFINED (1U << 31) typedef unsigned long ck_hw_feature_type_t; @@ -327,7 +327,7 @@ typedef unsigned long ck_hw_feature_type_t; #define CKH_MONOTONIC_COUNTER (1) #define CKH_CLOCK (2) #define CKH_USER_INTERFACE (3) -#define CKH_VENDOR_DEFINED ((unsigned long) (1 << 31)) +#define CKH_VENDOR_DEFINED (1U << 31) typedef unsigned long ck_key_type_t; @@ -357,14 +357,14 @@ typedef unsigned long ck_key_type_t; #define CKK_AES (0x1f) #define CKK_BLOWFISH (0x20) #define CKK_TWOFISH (0x21) -#define CKK_VENDOR_DEFINED ((unsigned long) (1 << 31)) +#define CKK_VENDOR_DEFINED (1U << 31) typedef unsigned long ck_certificate_type_t; #define CKC_X_509 (0) #define CKC_X_509_ATTR_CERT (1) #define CKC_WTLS (2) -#define CKC_VENDOR_DEFINED ((unsigned long) (1 << 31)) +#define CKC_VENDOR_DEFINED (1U << 31) typedef unsigned long ck_attribute_type_t; @@ -453,7 +453,7 @@ typedef unsigned long ck_attribute_type_t; #define CKA_WRAP_TEMPLATE (CKF_ARRAY_ATTRIBUTE | 0x211) #define CKA_UNWRAP_TEMPLATE (CKF_ARRAY_ATTRIBUTE | 0x212) #define CKA_ALLOWED_MECHANISMS (CKF_ARRAY_ATTRIBUTE | 0x600) -#define CKA_VENDOR_DEFINED ((unsigned long) (1 << 31)) +#define CKA_VENDOR_DEFINED (1U << 31) struct ck_attribute @@ -672,7 +672,7 @@ typedef unsigned long ck_mechanism_type_t; #define CKM_DSA_PARAMETER_GEN (0x2000) #define CKM_DH_PKCS_PARAMETER_GEN (0x2001) #define CKM_X9_42_DH_PARAMETER_GEN (0x2002) -#define CKM_VENDOR_DEFINED ((unsigned long) (1 << 31)) +#define CKM_VENDOR_DEFINED (1U << 31) struct ck_mechanism @@ -703,7 +703,7 @@ struct ck_mechanism_info #define CKF_WRAP (1 << 17) #define CKF_UNWRAP (1 << 18) #define CKF_DERIVE (1 << 19) -#define CKF_EXTENSION ((unsigned long) (1 << 31)) +#define CKF_EXTENSION (1U << 31) /* Flags for C_WaitForSlotEvent. */ @@ -1179,7 +1179,7 @@ struct ck_c_initialize_args #define CKR_MUTEX_BAD (0x1a0) #define CKR_MUTEX_NOT_LOCKED (0x1a1) #define CKR_FUNCTION_REJECTED (0x200) -#define CKR_VENDOR_DEFINED ((unsigned long) (1 << 31)) +#define CKR_VENDOR_DEFINED (1U << 31) @@ -1,4 +1,4 @@ -/* $Id: platform.c,v 1.18 2011/01/11 06:02:25 djm Exp $ */ +/* $Id: platform.c,v 1.21 2014/01/21 01:59:29 tim Exp $ */ /* * Copyright (c) 2006 Darren Tucker. All rights reserved. @@ -55,6 +55,14 @@ platform_pre_fork(void) } void +platform_pre_restart(void) +{ +#ifdef LINUX_OOM_ADJUST + oom_adjust_restore(); +#endif +} + +void platform_post_fork_parent(pid_t child_pid) { #ifdef USE_SOLARIS_PROCESS_CONTRACTS @@ -156,12 +164,6 @@ platform_setusercontext_post_groups(struct passwd *pw) aix_usrinfo(pw); #endif /* _AIX */ -#if !defined(HAVE_LOGIN_CAP) && defined(USE_LIBIAF) - if (set_id(pw->pw_name) != 0) { - exit(1); - } -# endif /* USE_LIBIAF */ - #ifdef HAVE_SETPCRED /* * If we have a chroot directory, we set all creds except real @@ -194,3 +196,19 @@ platform_krb5_get_principal_name(const char *pw_name) return NULL; #endif } + +/* + * return 1 if the specified uid is a uid that may own a system directory + * otherwise 0. + */ +int +platform_sys_dir_uid(uid_t uid) +{ + if (uid == 0) + return 1; +#ifdef PLATFORM_SYS_DIR_UID + if (uid == PLATFORM_SYS_DIR_UID) + return 1; +#endif + return 0; +} @@ -1,4 +1,4 @@ -/* $Id: platform.h,v 1.7 2010/11/05 03:47:01 dtucker Exp $ */ +/* $Id: platform.h,v 1.9 2013/09/22 09:02:40 dtucker Exp $ */ /* * Copyright (c) 2006 Darren Tucker. All rights reserved. @@ -22,6 +22,7 @@ void platform_pre_listen(void); void platform_pre_fork(void); +void platform_pre_restart(void); void platform_post_fork_parent(pid_t child_pid); void platform_post_fork_child(void); int platform_privileged_uidswap(void); @@ -29,5 +30,4 @@ void platform_setusercontext(struct passwd *); void platform_setusercontext_post_groups(struct passwd *); char *platform_get_krb5_client(const char *); char *platform_krb5_get_principal_name(const char *); - - +int platform_sys_dir_uid(uid_t); diff --git a/poly1305.c b/poly1305.c new file mode 100644 index 00000000..6fd1fc8c --- /dev/null +++ b/poly1305.c @@ -0,0 +1,160 @@ +/* + * Public Domain poly1305 from Andrew Moon + * poly1305-donna-unrolled.c from https://github.com/floodyberry/poly1305-donna + */ + +/* $OpenBSD: poly1305.c,v 1.3 2013/12/19 22:57:13 djm Exp $ */ + +#include "includes.h" + +#include <sys/types.h> +#ifdef HAVE_STDINT_H +# include <stdint.h> +#endif + +#include "poly1305.h" + +#define mul32x32_64(a,b) ((uint64_t)(a) * (b)) + +#define U8TO32_LE(p) \ + (((uint32_t)((p)[0])) | \ + ((uint32_t)((p)[1]) << 8) | \ + ((uint32_t)((p)[2]) << 16) | \ + ((uint32_t)((p)[3]) << 24)) + +#define U32TO8_LE(p, v) \ + do { \ + (p)[0] = (uint8_t)((v)); \ + (p)[1] = (uint8_t)((v) >> 8); \ + (p)[2] = (uint8_t)((v) >> 16); \ + (p)[3] = (uint8_t)((v) >> 24); \ + } while (0) + +void +poly1305_auth(unsigned char out[POLY1305_TAGLEN], const unsigned char *m, size_t inlen, const unsigned char key[POLY1305_KEYLEN]) { + uint32_t t0,t1,t2,t3; + uint32_t h0,h1,h2,h3,h4; + uint32_t r0,r1,r2,r3,r4; + uint32_t s1,s2,s3,s4; + uint32_t b, nb; + size_t j; + uint64_t t[5]; + uint64_t f0,f1,f2,f3; + uint32_t g0,g1,g2,g3,g4; + uint64_t c; + unsigned char mp[16]; + + /* clamp key */ + t0 = U8TO32_LE(key+0); + t1 = U8TO32_LE(key+4); + t2 = U8TO32_LE(key+8); + t3 = U8TO32_LE(key+12); + + /* precompute multipliers */ + r0 = t0 & 0x3ffffff; t0 >>= 26; t0 |= t1 << 6; + r1 = t0 & 0x3ffff03; t1 >>= 20; t1 |= t2 << 12; + r2 = t1 & 0x3ffc0ff; t2 >>= 14; t2 |= t3 << 18; + r3 = t2 & 0x3f03fff; t3 >>= 8; + r4 = t3 & 0x00fffff; + + s1 = r1 * 5; + s2 = r2 * 5; + s3 = r3 * 5; + s4 = r4 * 5; + + /* init state */ + h0 = 0; + h1 = 0; + h2 = 0; + h3 = 0; + h4 = 0; + + /* full blocks */ + if (inlen < 16) goto poly1305_donna_atmost15bytes; +poly1305_donna_16bytes: + m += 16; + inlen -= 16; + + t0 = U8TO32_LE(m-16); + t1 = U8TO32_LE(m-12); + t2 = U8TO32_LE(m-8); + t3 = U8TO32_LE(m-4); + + h0 += t0 & 0x3ffffff; + h1 += ((((uint64_t)t1 << 32) | t0) >> 26) & 0x3ffffff; + h2 += ((((uint64_t)t2 << 32) | t1) >> 20) & 0x3ffffff; + h3 += ((((uint64_t)t3 << 32) | t2) >> 14) & 0x3ffffff; + h4 += (t3 >> 8) | (1 << 24); + + +poly1305_donna_mul: + t[0] = mul32x32_64(h0,r0) + mul32x32_64(h1,s4) + mul32x32_64(h2,s3) + mul32x32_64(h3,s2) + mul32x32_64(h4,s1); + t[1] = mul32x32_64(h0,r1) + mul32x32_64(h1,r0) + mul32x32_64(h2,s4) + mul32x32_64(h3,s3) + mul32x32_64(h4,s2); + t[2] = mul32x32_64(h0,r2) + mul32x32_64(h1,r1) + mul32x32_64(h2,r0) + mul32x32_64(h3,s4) + mul32x32_64(h4,s3); + t[3] = mul32x32_64(h0,r3) + mul32x32_64(h1,r2) + mul32x32_64(h2,r1) + mul32x32_64(h3,r0) + mul32x32_64(h4,s4); + t[4] = mul32x32_64(h0,r4) + mul32x32_64(h1,r3) + mul32x32_64(h2,r2) + mul32x32_64(h3,r1) + mul32x32_64(h4,r0); + + h0 = (uint32_t)t[0] & 0x3ffffff; c = (t[0] >> 26); + t[1] += c; h1 = (uint32_t)t[1] & 0x3ffffff; b = (uint32_t)(t[1] >> 26); + t[2] += b; h2 = (uint32_t)t[2] & 0x3ffffff; b = (uint32_t)(t[2] >> 26); + t[3] += b; h3 = (uint32_t)t[3] & 0x3ffffff; b = (uint32_t)(t[3] >> 26); + t[4] += b; h4 = (uint32_t)t[4] & 0x3ffffff; b = (uint32_t)(t[4] >> 26); + h0 += b * 5; + + if (inlen >= 16) goto poly1305_donna_16bytes; + + /* final bytes */ +poly1305_donna_atmost15bytes: + if (!inlen) goto poly1305_donna_finish; + + for (j = 0; j < inlen; j++) mp[j] = m[j]; + mp[j++] = 1; + for (; j < 16; j++) mp[j] = 0; + inlen = 0; + + t0 = U8TO32_LE(mp+0); + t1 = U8TO32_LE(mp+4); + t2 = U8TO32_LE(mp+8); + t3 = U8TO32_LE(mp+12); + + h0 += t0 & 0x3ffffff; + h1 += ((((uint64_t)t1 << 32) | t0) >> 26) & 0x3ffffff; + h2 += ((((uint64_t)t2 << 32) | t1) >> 20) & 0x3ffffff; + h3 += ((((uint64_t)t3 << 32) | t2) >> 14) & 0x3ffffff; + h4 += (t3 >> 8); + + goto poly1305_donna_mul; + +poly1305_donna_finish: + b = h0 >> 26; h0 = h0 & 0x3ffffff; + h1 += b; b = h1 >> 26; h1 = h1 & 0x3ffffff; + h2 += b; b = h2 >> 26; h2 = h2 & 0x3ffffff; + h3 += b; b = h3 >> 26; h3 = h3 & 0x3ffffff; + h4 += b; b = h4 >> 26; h4 = h4 & 0x3ffffff; + h0 += b * 5; b = h0 >> 26; h0 = h0 & 0x3ffffff; + h1 += b; + + g0 = h0 + 5; b = g0 >> 26; g0 &= 0x3ffffff; + g1 = h1 + b; b = g1 >> 26; g1 &= 0x3ffffff; + g2 = h2 + b; b = g2 >> 26; g2 &= 0x3ffffff; + g3 = h3 + b; b = g3 >> 26; g3 &= 0x3ffffff; + g4 = h4 + b - (1 << 26); + + b = (g4 >> 31) - 1; + nb = ~b; + h0 = (h0 & nb) | (g0 & b); + h1 = (h1 & nb) | (g1 & b); + h2 = (h2 & nb) | (g2 & b); + h3 = (h3 & nb) | (g3 & b); + h4 = (h4 & nb) | (g4 & b); + + f0 = ((h0 ) | (h1 << 26)) + (uint64_t)U8TO32_LE(&key[16]); + f1 = ((h1 >> 6) | (h2 << 20)) + (uint64_t)U8TO32_LE(&key[20]); + f2 = ((h2 >> 12) | (h3 << 14)) + (uint64_t)U8TO32_LE(&key[24]); + f3 = ((h3 >> 18) | (h4 << 8)) + (uint64_t)U8TO32_LE(&key[28]); + + U32TO8_LE(&out[ 0], f0); f1 += (f0 >> 32); + U32TO8_LE(&out[ 4], f1); f2 += (f1 >> 32); + U32TO8_LE(&out[ 8], f2); f3 += (f2 >> 32); + U32TO8_LE(&out[12], f3); +} diff --git a/poly1305.h b/poly1305.h new file mode 100644 index 00000000..221efc46 --- /dev/null +++ b/poly1305.h @@ -0,0 +1,22 @@ +/* $OpenBSD: poly1305.h,v 1.2 2013/12/19 22:57:13 djm Exp $ */ + +/* + * Public Domain poly1305 from Andrew Moon + * poly1305-donna-unrolled.c from https://github.com/floodyberry/poly1305-donna + */ + +#ifndef POLY1305_H +#define POLY1305_H + +#include <sys/types.h> + +#define POLY1305_KEYLEN 32 +#define POLY1305_TAGLEN 16 + +void poly1305_auth(u_char out[POLY1305_TAGLEN], const u_char *m, size_t inlen, + const u_char key[POLY1305_KEYLEN]) + __attribute__((__bounded__(__minbytes__, 1, POLY1305_TAGLEN))) + __attribute__((__bounded__(__buffer__, 2, 3))) + __attribute__((__bounded__(__minbytes__, 4, POLY1305_KEYLEN))); + +#endif /* POLY1305_H */ diff --git a/progressmeter.c b/progressmeter.c index 0f95222d..bbbc7066 100644 --- a/progressmeter.c +++ b/progressmeter.c @@ -1,4 +1,4 @@ -/* $OpenBSD: progressmeter.c,v 1.37 2006/08/03 03:34:42 deraadt Exp $ */ +/* $OpenBSD: progressmeter.c,v 1.40 2013/09/19 00:24:52 djm Exp $ */ /* * Copyright (c) 2003 Nils Nordman. All rights reserved. * @@ -66,6 +66,7 @@ static void update_progress_meter(int); static time_t start; /* start progress */ static time_t last_update; /* last progress update */ static char *file; /* name of the file being transferred */ +static off_t start_pos; /* initial position of transfer */ static off_t end_pos; /* ending position of transfer */ static off_t cur_pos; /* transfer position as of last refresh */ static volatile off_t *counter; /* progress counter */ @@ -129,9 +130,9 @@ refresh_progress_meter(void) int i, len; int file_len; - transferred = *counter - cur_pos; + transferred = *counter - (cur_pos ? cur_pos : start_pos); cur_pos = *counter; - now = time(NULL); + now = monotime(); bytes_left = end_pos - cur_pos; if (bytes_left > 0) @@ -139,7 +140,7 @@ refresh_progress_meter(void) else { elapsed = now - start; /* Calculate true total speed when done */ - transferred = end_pos; + transferred = end_pos - start_pos; bytes_per_second = 0; } @@ -249,8 +250,9 @@ update_progress_meter(int ignore) void start_progress_meter(char *f, off_t filesize, off_t *ctr) { - start = last_update = time(NULL); + start = last_update = monotime(); file = f; + start_pos = *ctr; end_pos = filesize; cur_pos = 0; counter = ctr; @@ -1,4 +1,4 @@ -/* $OpenBSD: readconf.c,v 1.194 2011/09/23 07:45:05 markus Exp $ */ +/* $OpenBSD: readconf.c,v 1.215 2013/12/06 13:39:49 markus Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -17,6 +17,7 @@ #include <sys/types.h> #include <sys/stat.h> #include <sys/socket.h> +#include <sys/wait.h> #include <netinet/in.h> #include <netinet/in_systm.h> @@ -24,12 +25,20 @@ #include <ctype.h> #include <errno.h> +#include <fcntl.h> #include <netdb.h> +#ifdef HAVE_PATHS_H +# include <paths.h> +#endif +#include <pwd.h> #include <signal.h> #include <stdarg.h> #include <stdio.h> #include <string.h> #include <unistd.h> +#ifdef HAVE_UTIL_H +#include <util.h> +#endif #include "xmalloc.h" #include "ssh.h" @@ -44,6 +53,7 @@ #include "buffer.h" #include "kex.h" #include "mac.h" +#include "uidswap.h" /* Format of the configuration file: @@ -112,12 +122,13 @@ typedef enum { oBadOption, + oHost, oMatch, oForwardAgent, oForwardX11, oForwardX11Trusted, oForwardX11Timeout, oGatewayPorts, oExitOnForwardFailure, oPasswordAuthentication, oRSAAuthentication, oChallengeResponseAuthentication, oXAuthLocation, oIdentityFile, oHostName, oPort, oCipher, oRemoteForward, oLocalForward, - oUser, oHost, oEscapeChar, oRhostsRSAAuthentication, oProxyCommand, + oUser, oEscapeChar, oRhostsRSAAuthentication, oProxyCommand, oGlobalKnownHostsFile, oUserKnownHostsFile, oConnectionAttempts, oBatchMode, oCheckHostIP, oStrictHostKeyChecking, oCompression, oCompressionLevel, oTCPKeepAlive, oNumberOfPasswordPrompts, @@ -134,8 +145,10 @@ typedef enum { oHashKnownHosts, oTunnel, oTunnelDevice, oLocalCommand, oPermitLocalCommand, oVisualHostKey, oUseRoaming, oZeroKnowledgePasswordAuthentication, - oKexAlgorithms, oIPQoS, oRequestTTY, - oDeprecated, oUnsupported + oKexAlgorithms, oIPQoS, oRequestTTY, oIgnoreUnknown, oProxyUseFdpass, + oCanonicalDomains, oCanonicalizeHostname, oCanonicalizeMaxDots, + oCanonicalizeFallbackLocal, oCanonicalizePermittedCNAMEs, + oIgnoredUnknownOption, oDeprecated, oUnsupported } OpCodes; /* Textual representations of the tokens. */ @@ -191,6 +204,7 @@ static struct { { "localforward", oLocalForward }, { "user", oUser }, { "host", oHost }, + { "match", oMatch }, { "escapechar", oEscapeChar }, { "globalknownhostsfile", oGlobalKnownHostsFile }, { "globalknownhostsfile2", oDeprecated }, @@ -246,6 +260,13 @@ static struct { { "kexalgorithms", oKexAlgorithms }, { "ipqos", oIPQoS }, { "requesttty", oRequestTTY }, + { "proxyusefdpass", oProxyUseFdpass }, + { "canonicaldomains", oCanonicalDomains }, + { "canonicalizefallbacklocal", oCanonicalizeFallbackLocal }, + { "canonicalizehostname", oCanonicalizeHostname }, + { "canonicalizemaxdots", oCanonicalizeMaxDots }, + { "canonicalizepermittedcnames", oCanonicalizePermittedCNAMEs }, + { "ignoreunknown", oIgnoreUnknown }, { NULL, oBadOption } }; @@ -304,65 +325,387 @@ clear_forwardings(Options *options) int i; for (i = 0; i < options->num_local_forwards; i++) { - if (options->local_forwards[i].listen_host != NULL) - xfree(options->local_forwards[i].listen_host); - xfree(options->local_forwards[i].connect_host); + free(options->local_forwards[i].listen_host); + free(options->local_forwards[i].connect_host); } if (options->num_local_forwards > 0) { - xfree(options->local_forwards); + free(options->local_forwards); options->local_forwards = NULL; } options->num_local_forwards = 0; for (i = 0; i < options->num_remote_forwards; i++) { - if (options->remote_forwards[i].listen_host != NULL) - xfree(options->remote_forwards[i].listen_host); - xfree(options->remote_forwards[i].connect_host); + free(options->remote_forwards[i].listen_host); + free(options->remote_forwards[i].connect_host); } if (options->num_remote_forwards > 0) { - xfree(options->remote_forwards); + free(options->remote_forwards); options->remote_forwards = NULL; } options->num_remote_forwards = 0; options->tun_open = SSH_TUNMODE_NO; } +void +add_identity_file(Options *options, const char *dir, const char *filename, + int userprovided) +{ + char *path; + + if (options->num_identity_files >= SSH_MAX_IDENTITY_FILES) + fatal("Too many identity files specified (max %d)", + SSH_MAX_IDENTITY_FILES); + + if (dir == NULL) /* no dir, filename is absolute */ + path = xstrdup(filename); + else + (void)xasprintf(&path, "%.100s%.100s", dir, filename); + + options->identity_file_userprovided[options->num_identity_files] = + userprovided; + options->identity_files[options->num_identity_files++] = path; +} + +int +default_ssh_port(void) +{ + static int port; + struct servent *sp; + + if (port == 0) { + sp = getservbyname(SSH_SERVICE_NAME, "tcp"); + port = sp ? ntohs(sp->s_port) : SSH_DEFAULT_PORT; + } + return port; +} + /* - * Returns the number of the token pointed to by cp or oBadOption. + * Execute a command in a shell. + * Return its exit status or -1 on abnormal exit. + */ +static int +execute_in_shell(const char *cmd) +{ + char *shell, *command_string; + pid_t pid; + int devnull, status; + extern uid_t original_real_uid; + + if ((shell = getenv("SHELL")) == NULL) + shell = _PATH_BSHELL; + + /* + * Use "exec" to avoid "sh -c" processes on some platforms + * (e.g. Solaris) + */ + xasprintf(&command_string, "exec %s", cmd); + + /* Need this to redirect subprocess stdin/out */ + if ((devnull = open(_PATH_DEVNULL, O_RDWR)) == -1) + fatal("open(/dev/null): %s", strerror(errno)); + + debug("Executing command: '%.500s'", cmd); + + /* Fork and execute the command. */ + if ((pid = fork()) == 0) { + char *argv[4]; + + /* Child. Permanently give up superuser privileges. */ + permanently_drop_suid(original_real_uid); + + /* Redirect child stdin and stdout. Leave stderr */ + if (dup2(devnull, STDIN_FILENO) == -1) + fatal("dup2: %s", strerror(errno)); + if (dup2(devnull, STDOUT_FILENO) == -1) + fatal("dup2: %s", strerror(errno)); + if (devnull > STDERR_FILENO) + close(devnull); + closefrom(STDERR_FILENO + 1); + + argv[0] = shell; + argv[1] = "-c"; + argv[2] = command_string; + argv[3] = NULL; + + execv(argv[0], argv); + error("Unable to execute '%.100s': %s", cmd, strerror(errno)); + /* Die with signal to make this error apparent to parent. */ + signal(SIGTERM, SIG_DFL); + kill(getpid(), SIGTERM); + _exit(1); + } + /* Parent. */ + if (pid < 0) + fatal("%s: fork: %.100s", __func__, strerror(errno)); + + close(devnull); + free(command_string); + + while (waitpid(pid, &status, 0) == -1) { + if (errno != EINTR && errno != EAGAIN) + fatal("%s: waitpid: %s", __func__, strerror(errno)); + } + if (!WIFEXITED(status)) { + error("command '%.100s' exited abnormally", cmd); + return -1; + } + debug3("command returned status %d", WEXITSTATUS(status)); + return WEXITSTATUS(status); +} + +/* + * Parse and execute a Match directive. */ +static int +match_cfg_line(Options *options, char **condition, struct passwd *pw, + const char *host_arg, const char *filename, int linenum) +{ + char *arg, *attrib, *cmd, *cp = *condition, *host; + const char *ruser; + int r, port, result = 1, attributes = 0; + size_t len; + char thishost[NI_MAXHOST], shorthost[NI_MAXHOST], portstr[NI_MAXSERV]; + + /* + * Configuration is likely to be incomplete at this point so we + * must be prepared to use default values. + */ + port = options->port <= 0 ? default_ssh_port() : options->port; + ruser = options->user == NULL ? pw->pw_name : options->user; + if (options->hostname != NULL) { + /* NB. Please keep in sync with ssh.c:main() */ + host = percent_expand(options->hostname, + "h", host_arg, (char *)NULL); + } else + host = xstrdup(host_arg); + + debug3("checking match for '%s' host %s", cp, host); + while ((attrib = strdelim(&cp)) && *attrib != '\0') { + attributes++; + if (strcasecmp(attrib, "all") == 0) { + if (attributes != 1 || + ((arg = strdelim(&cp)) != NULL && *arg != '\0')) { + error("'all' cannot be combined with other " + "Match attributes"); + result = -1; + goto out; + } + *condition = cp; + result = 1; + goto out; + } + if ((arg = strdelim(&cp)) == NULL || *arg == '\0') { + error("Missing Match criteria for %s", attrib); + result = -1; + goto out; + } + len = strlen(arg); + if (strcasecmp(attrib, "host") == 0) { + if (match_hostname(host, arg, len) != 1) + result = 0; + else + debug("%.200s line %d: matched 'Host %.100s' ", + filename, linenum, host); + } else if (strcasecmp(attrib, "originalhost") == 0) { + if (match_hostname(host_arg, arg, len) != 1) + result = 0; + else + debug("%.200s line %d: matched " + "'OriginalHost %.100s' ", + filename, linenum, host_arg); + } else if (strcasecmp(attrib, "user") == 0) { + if (match_pattern_list(ruser, arg, len, 0) != 1) + result = 0; + else + debug("%.200s line %d: matched 'User %.100s' ", + filename, linenum, ruser); + } else if (strcasecmp(attrib, "localuser") == 0) { + if (match_pattern_list(pw->pw_name, arg, len, 0) != 1) + result = 0; + else + debug("%.200s line %d: matched " + "'LocalUser %.100s' ", + filename, linenum, pw->pw_name); + } else if (strcasecmp(attrib, "exec") == 0) { + if (gethostname(thishost, sizeof(thishost)) == -1) + fatal("gethostname: %s", strerror(errno)); + strlcpy(shorthost, thishost, sizeof(shorthost)); + shorthost[strcspn(thishost, ".")] = '\0'; + snprintf(portstr, sizeof(portstr), "%d", port); + + cmd = percent_expand(arg, + "L", shorthost, + "d", pw->pw_dir, + "h", host, + "l", thishost, + "n", host_arg, + "p", portstr, + "r", ruser, + "u", pw->pw_name, + (char *)NULL); + r = execute_in_shell(cmd); + if (r == -1) { + fatal("%.200s line %d: match exec '%.100s' " + "error", filename, linenum, cmd); + } else if (r == 0) { + debug("%.200s line %d: matched " + "'exec \"%.100s\"' ", + filename, linenum, cmd); + } else + result = 0; + free(cmd); + } else { + error("Unsupported Match attribute %s", attrib); + result = -1; + goto out; + } + } + if (attributes == 0) { + error("One or more attributes required for Match"); + result = -1; + goto out; + } + debug3("match %sfound", result ? "" : "not "); + *condition = cp; + out: + free(host); + return result; +} + +/* Check and prepare a domain name: removes trailing '.' and lowercases */ +static void +valid_domain(char *name, const char *filename, int linenum) +{ + size_t i, l = strlen(name); + u_char c, last = '\0'; + + if (l == 0) + fatal("%s line %d: empty hostname suffix", filename, linenum); + if (!isalpha((u_char)name[0]) && !isdigit((u_char)name[0])) + fatal("%s line %d: hostname suffix \"%.100s\" " + "starts with invalid character", filename, linenum, name); + for (i = 0; i < l; i++) { + c = tolower((u_char)name[i]); + name[i] = (char)c; + if (last == '.' && c == '.') + fatal("%s line %d: hostname suffix \"%.100s\" contains " + "consecutive separators", filename, linenum, name); + if (c != '.' && c != '-' && !isalnum(c) && + c != '_') /* technically invalid, but common */ + fatal("%s line %d: hostname suffix \"%.100s\" contains " + "invalid characters", filename, linenum, name); + last = c; + } + if (name[l - 1] == '.') + name[l - 1] = '\0'; +} +/* + * Returns the number of the token pointed to by cp or oBadOption. + */ static OpCodes -parse_token(const char *cp, const char *filename, int linenum) +parse_token(const char *cp, const char *filename, int linenum, + const char *ignored_unknown) { - u_int i; + int i; for (i = 0; keywords[i].name; i++) - if (strcasecmp(cp, keywords[i].name) == 0) + if (strcmp(cp, keywords[i].name) == 0) return keywords[i].opcode; - + if (ignored_unknown != NULL && match_pattern_list(cp, ignored_unknown, + strlen(ignored_unknown), 1) == 1) + return oIgnoredUnknownOption; error("%s: line %d: Bad configuration option: %s", filename, linenum, cp); return oBadOption; } +/* Multistate option parsing */ +struct multistate { + char *key; + int value; +}; +static const struct multistate multistate_flag[] = { + { "true", 1 }, + { "false", 0 }, + { "yes", 1 }, + { "no", 0 }, + { NULL, -1 } +}; +static const struct multistate multistate_yesnoask[] = { + { "true", 1 }, + { "false", 0 }, + { "yes", 1 }, + { "no", 0 }, + { "ask", 2 }, + { NULL, -1 } +}; +static const struct multistate multistate_addressfamily[] = { + { "inet", AF_INET }, + { "inet6", AF_INET6 }, + { "any", AF_UNSPEC }, + { NULL, -1 } +}; +static const struct multistate multistate_controlmaster[] = { + { "true", SSHCTL_MASTER_YES }, + { "yes", SSHCTL_MASTER_YES }, + { "false", SSHCTL_MASTER_NO }, + { "no", SSHCTL_MASTER_NO }, + { "auto", SSHCTL_MASTER_AUTO }, + { "ask", SSHCTL_MASTER_ASK }, + { "autoask", SSHCTL_MASTER_AUTO_ASK }, + { NULL, -1 } +}; +static const struct multistate multistate_tunnel[] = { + { "ethernet", SSH_TUNMODE_ETHERNET }, + { "point-to-point", SSH_TUNMODE_POINTOPOINT }, + { "true", SSH_TUNMODE_DEFAULT }, + { "yes", SSH_TUNMODE_DEFAULT }, + { "false", SSH_TUNMODE_NO }, + { "no", SSH_TUNMODE_NO }, + { NULL, -1 } +}; +static const struct multistate multistate_requesttty[] = { + { "true", REQUEST_TTY_YES }, + { "yes", REQUEST_TTY_YES }, + { "false", REQUEST_TTY_NO }, + { "no", REQUEST_TTY_NO }, + { "force", REQUEST_TTY_FORCE }, + { "auto", REQUEST_TTY_AUTO }, + { NULL, -1 } +}; +static const struct multistate multistate_canonicalizehostname[] = { + { "true", SSH_CANONICALISE_YES }, + { "false", SSH_CANONICALISE_NO }, + { "yes", SSH_CANONICALISE_YES }, + { "no", SSH_CANONICALISE_NO }, + { "always", SSH_CANONICALISE_ALWAYS }, + { NULL, -1 } +}; + /* * Processes a single option line as used in the configuration files. This * only sets those values that have not already been set. */ #define WHITESPACE " \t\r\n" - int -process_config_line(Options *options, const char *host, - char *line, const char *filename, int linenum, - int *activep) +process_config_line(Options *options, struct passwd *pw, const char *host, + char *line, const char *filename, int linenum, int *activep, int userconfig) { char *s, **charptr, *endofnumber, *keyword, *arg, *arg2; char **cpptr, fwdarg[256]; - u_int *uintptr, max_entries = 0; - int negated, opcode, *intptr, value, value2, scale; + u_int i, *uintptr, max_entries = 0; + int negated, opcode, *intptr, value, value2, cmdline = 0; LogLevel *log_level_ptr; - long long orig, val64; + long long val64; size_t len; Forward fwd; + const struct multistate *multistate_ptr; + struct allowed_cname *cname; + + if (activep == NULL) { /* We are processing a command line directive */ + cmdline = 1; + activep = &cmdline; + } /* Strip trailing whitespace */ for (len = strlen(line) - 1; len > 0; len--) { @@ -380,14 +723,21 @@ process_config_line(Options *options, const char *host, keyword = strdelim(&s); if (keyword == NULL || !*keyword || *keyword == '\n' || *keyword == '#') return 0; + /* Match lowercase keyword */ + lowercase(keyword); - opcode = parse_token(keyword, filename, linenum); + opcode = parse_token(keyword, filename, linenum, + options->ignored_unknown); switch (opcode) { case oBadOption: /* don't panic, but count bad options */ return -1; /* NOTREACHED */ + case oIgnoredUnknownOption: + debug("%s line %d: Ignored unknown option \"%s\"", + filename, linenum, keyword); + return 0; case oConnectTimeout: intptr = &options->connection_timeout; parse_time: @@ -404,17 +754,23 @@ parse_time: case oForwardAgent: intptr = &options->forward_agent; -parse_flag: + parse_flag: + multistate_ptr = multistate_flag; + parse_multistate: arg = strdelim(&s); if (!arg || *arg == '\0') - fatal("%.200s line %d: Missing yes/no argument.", filename, linenum); - value = 0; /* To avoid compiler warning... */ - if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0) - value = 1; - else if (strcmp(arg, "no") == 0 || strcmp(arg, "false") == 0) - value = 0; - else - fatal("%.200s line %d: Bad yes/no argument.", filename, linenum); + fatal("%s line %d: missing argument.", + filename, linenum); + value = -1; + for (i = 0; multistate_ptr[i].key != NULL; i++) { + if (strcasecmp(arg, multistate_ptr[i].key) == 0) { + value = multistate_ptr[i].value; + break; + } + } + if (value == -1) + fatal("%s line %d: unsupported option \"%s\".", + filename, linenum, arg); if (*activep && *intptr == -1) *intptr = value; break; @@ -497,27 +853,13 @@ parse_flag: case oVerifyHostKeyDNS: intptr = &options->verify_host_key_dns; - goto parse_yesnoask; + multistate_ptr = multistate_yesnoask; + goto parse_multistate; case oStrictHostKeyChecking: intptr = &options->strict_host_key_checking; -parse_yesnoask: - arg = strdelim(&s); - if (!arg || *arg == '\0') - fatal("%.200s line %d: Missing yes/no/ask argument.", - filename, linenum); - value = 0; /* To avoid compiler warning... */ - if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0) - value = 1; - else if (strcmp(arg, "no") == 0 || strcmp(arg, "false") == 0) - value = 0; - else if (strcmp(arg, "ask") == 0) - value = 2; - else - fatal("%.200s line %d: Bad yes/no/ask argument.", filename, linenum); - if (*activep && *intptr == -1) - *intptr = value; - break; + multistate_ptr = multistate_yesnoask; + goto parse_multistate; case oCompression: intptr = &options->compression; @@ -542,39 +884,32 @@ parse_yesnoask: case oRekeyLimit: arg = strdelim(&s); if (!arg || *arg == '\0') - fatal("%.200s line %d: Missing argument.", filename, linenum); - if (arg[0] < '0' || arg[0] > '9') - fatal("%.200s line %d: Bad number.", filename, linenum); - orig = val64 = strtoll(arg, &endofnumber, 10); - if (arg == endofnumber) - fatal("%.200s line %d: Bad number.", filename, linenum); - switch (toupper(*endofnumber)) { - case '\0': - scale = 1; - break; - case 'K': - scale = 1<<10; - break; - case 'M': - scale = 1<<20; - break; - case 'G': - scale = 1<<30; - break; - default: - fatal("%.200s line %d: Invalid RekeyLimit suffix", - filename, linenum); + fatal("%.200s line %d: Missing argument.", filename, + linenum); + if (strcmp(arg, "default") == 0) { + val64 = 0; + } else { + if (scan_scaled(arg, &val64) == -1) + fatal("%.200s line %d: Bad number '%s': %s", + filename, linenum, arg, strerror(errno)); + /* check for too-large or too-small limits */ + if (val64 > UINT_MAX) + fatal("%.200s line %d: RekeyLimit too large", + filename, linenum); + if (val64 != 0 && val64 < 16) + fatal("%.200s line %d: RekeyLimit too small", + filename, linenum); } - val64 *= scale; - /* detect integer wrap and too-large limits */ - if ((val64 / scale) != orig || val64 > UINT_MAX) - fatal("%.200s line %d: RekeyLimit too large", - filename, linenum); - if (val64 < 16) - fatal("%.200s line %d: RekeyLimit too small", - filename, linenum); if (*activep && options->rekey_limit == -1) options->rekey_limit = (u_int32_t)val64; + if (s != NULL) { /* optional rekey interval present */ + if (strcmp(s, "none") == 0) { + (void)strdelim(&s); /* discard */ + break; + } + intptr = &options->rekey_interval; + goto parse_time; + } break; case oIdentityFile: @@ -586,9 +921,7 @@ parse_yesnoask: if (*intptr >= SSH_MAX_IDENTITY_FILES) fatal("%.200s line %d: Too many identity files specified (max %d).", filename, linenum, SSH_MAX_IDENTITY_FILES); - charptr = &options->identity_files[*intptr]; - *charptr = xstrdup(arg); - *intptr = *intptr + 1; + add_identity_file(options, NULL, arg, userconfig); } break; @@ -803,6 +1136,9 @@ parse_int: goto parse_flag; case oHost: + if (cmdline) + fatal("Host directive not supported as a command-line " + "option"); *activep = 0; arg2 = NULL; while ((arg = strdelim(&s)) != NULL && *arg != '\0') { @@ -829,6 +1165,18 @@ parse_int: /* Avoid garbage check below, as strdelim is done. */ return 0; + case oMatch: + if (cmdline) + fatal("Host directive not supported as a command-line " + "option"); + value = match_cfg_line(options, &s, pw, host, + filename, linenum); + if (value < 0) + fatal("%.200s line %d: Bad Match condition", filename, + linenum); + *activep = value; + break; + case oEscapeChar: intptr = &options->escape_char; arg = strdelim(&s); @@ -852,22 +1200,9 @@ parse_int: break; case oAddressFamily: - arg = strdelim(&s); - if (!arg || *arg == '\0') - fatal("%s line %d: missing address family.", - filename, linenum); intptr = &options->address_family; - if (strcasecmp(arg, "inet") == 0) - value = AF_INET; - else if (strcasecmp(arg, "inet6") == 0) - value = AF_INET6; - else if (strcasecmp(arg, "any") == 0) - value = AF_UNSPEC; - else - fatal("Unsupported AddressFamily \"%s\"", arg); - if (*activep && *intptr == -1) - *intptr = value; - break; + multistate_ptr = multistate_addressfamily; + goto parse_multistate; case oEnableSSHKeysign: intptr = &options->enable_ssh_keysign; @@ -906,27 +1241,8 @@ parse_int: case oControlMaster: intptr = &options->control_master; - arg = strdelim(&s); - if (!arg || *arg == '\0') - fatal("%.200s line %d: Missing ControlMaster argument.", - filename, linenum); - value = 0; /* To avoid compiler warning... */ - if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0) - value = SSHCTL_MASTER_YES; - else if (strcmp(arg, "no") == 0 || strcmp(arg, "false") == 0) - value = SSHCTL_MASTER_NO; - else if (strcmp(arg, "auto") == 0) - value = SSHCTL_MASTER_AUTO; - else if (strcmp(arg, "ask") == 0) - value = SSHCTL_MASTER_ASK; - else if (strcmp(arg, "autoask") == 0) - value = SSHCTL_MASTER_AUTO_ASK; - else - fatal("%.200s line %d: Bad ControlMaster argument.", - filename, linenum); - if (*activep && *intptr == -1) - *intptr = value; - break; + multistate_ptr = multistate_controlmaster; + goto parse_multistate; case oControlPersist: /* no/false/yes/true, or a time spec */ @@ -958,25 +1274,8 @@ parse_int: case oTunnel: intptr = &options->tun_open; - arg = strdelim(&s); - if (!arg || *arg == '\0') - fatal("%s line %d: Missing yes/point-to-point/" - "ethernet/no argument.", filename, linenum); - value = 0; /* silence compiler */ - if (strcasecmp(arg, "ethernet") == 0) - value = SSH_TUNMODE_ETHERNET; - else if (strcasecmp(arg, "point-to-point") == 0) - value = SSH_TUNMODE_POINTOPOINT; - else if (strcasecmp(arg, "yes") == 0) - value = SSH_TUNMODE_DEFAULT; - else if (strcasecmp(arg, "no") == 0) - value = SSH_TUNMODE_NO; - else - fatal("%s line %d: Bad yes/point-to-point/ethernet/" - "no argument: %s", filename, linenum, arg); - if (*activep) - *intptr = value; - break; + multistate_ptr = multistate_tunnel; + goto parse_multistate; case oTunnelDevice: arg = strdelim(&s); @@ -1025,25 +1324,74 @@ parse_int: goto parse_flag; case oRequestTTY: - arg = strdelim(&s); - if (!arg || *arg == '\0') - fatal("%s line %d: missing argument.", - filename, linenum); intptr = &options->request_tty; - if (strcasecmp(arg, "yes") == 0) - value = REQUEST_TTY_YES; - else if (strcasecmp(arg, "no") == 0) - value = REQUEST_TTY_NO; - else if (strcasecmp(arg, "force") == 0) - value = REQUEST_TTY_FORCE; - else if (strcasecmp(arg, "auto") == 0) - value = REQUEST_TTY_AUTO; - else - fatal("Unsupported RequestTTY \"%s\"", arg); - if (*activep && *intptr == -1) - *intptr = value; + multistate_ptr = multistate_requesttty; + goto parse_multistate; + + case oIgnoreUnknown: + charptr = &options->ignored_unknown; + goto parse_string; + + case oProxyUseFdpass: + intptr = &options->proxy_use_fdpass; + goto parse_flag; + + case oCanonicalDomains: + value = options->num_canonical_domains != 0; + while ((arg = strdelim(&s)) != NULL && *arg != '\0') { + valid_domain(arg, filename, linenum); + if (!*activep || value) + continue; + if (options->num_canonical_domains >= MAX_CANON_DOMAINS) + fatal("%s line %d: too many hostname suffixes.", + filename, linenum); + options->canonical_domains[ + options->num_canonical_domains++] = xstrdup(arg); + } + break; + + case oCanonicalizePermittedCNAMEs: + value = options->num_permitted_cnames != 0; + while ((arg = strdelim(&s)) != NULL && *arg != '\0') { + /* Either '*' for everything or 'list:list' */ + if (strcmp(arg, "*") == 0) + arg2 = arg; + else { + lowercase(arg); + if ((arg2 = strchr(arg, ':')) == NULL || + arg2[1] == '\0') { + fatal("%s line %d: " + "Invalid permitted CNAME \"%s\"", + filename, linenum, arg); + } + *arg2 = '\0'; + arg2++; + } + if (!*activep || value) + continue; + if (options->num_permitted_cnames >= MAX_CANON_DOMAINS) + fatal("%s line %d: too many permitted CNAMEs.", + filename, linenum); + cname = options->permitted_cnames + + options->num_permitted_cnames++; + cname->source_list = xstrdup(arg); + cname->target_list = xstrdup(arg2); + } break; + case oCanonicalizeHostname: + intptr = &options->canonicalize_hostname; + multistate_ptr = multistate_canonicalizehostname; + goto parse_multistate; + + case oCanonicalizeMaxDots: + intptr = &options->canonicalize_max_dots; + goto parse_int; + + case oCanonicalizeFallbackLocal: + intptr = &options->canonicalize_fallback_local; + goto parse_flag; + case oDeprecated: debug("%s line %d: Deprecated option \"%s\"", filename, linenum, keyword); @@ -1074,8 +1422,8 @@ parse_int: */ int -read_config_file(const char *filename, const char *host, Options *options, - int checkperm) +read_config_file(const char *filename, struct passwd *pw, const char *host, + Options *options, int flags) { FILE *f; char line[1024]; @@ -1085,7 +1433,7 @@ read_config_file(const char *filename, const char *host, Options *options, if ((f = fopen(filename, "r")) == NULL) return 0; - if (checkperm) { + if (flags & SSHCONF_CHECKPERM) { struct stat sb; if (fstat(fileno(f), &sb) == -1) @@ -1106,7 +1454,8 @@ read_config_file(const char *filename, const char *host, Options *options, while (fgets(line, sizeof(line), f)) { /* Update line number counter. */ linenum++; - if (process_config_line(options, host, line, filename, linenum, &active) != 0) + if (process_config_line(options, pw, host, line, filename, + linenum, &active, flags & SSHCONF_USERCONF) != 0) bad_options++; } fclose(f); @@ -1183,6 +1532,7 @@ initialize_options(Options * options) options->no_host_authentication_for_localhost = - 1; options->identities_only = - 1; options->rekey_limit = - 1; + options->rekey_interval = -1; options->verify_host_key_dns = -1; options->server_alive_interval = -1; options->server_alive_count_max = -1; @@ -1203,6 +1553,13 @@ initialize_options(Options * options) options->ip_qos_interactive = -1; options->ip_qos_bulk = -1; options->request_tty = -1; + options->proxy_use_fdpass = -1; + options->ignored_unknown = NULL; + options->num_canonical_domains = 0; + options->num_permitted_cnames = 0; + options->canonicalize_max_dots = -1; + options->canonicalize_fallback_local = -1; + options->canonicalize_hostname = -1; } /* @@ -1213,8 +1570,6 @@ initialize_options(Options * options) void fill_default_options(Options * options) { - int len; - if (options->forward_agent == -1) options->forward_agent = 0; if (options->forward_x11 == -1) @@ -1280,31 +1635,20 @@ fill_default_options(Options * options) options->protocol = SSH_PROTO_2; if (options->num_identity_files == 0) { if (options->protocol & SSH_PROTO_1) { - len = 2 + strlen(_PATH_SSH_CLIENT_IDENTITY) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_IDENTITY); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_IDENTITY, 0); } if (options->protocol & SSH_PROTO_2) { - len = 2 + strlen(_PATH_SSH_CLIENT_ID_RSA) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_ID_RSA); - - len = 2 + strlen(_PATH_SSH_CLIENT_ID_DSA) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_ID_DSA); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_ID_RSA, 0); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_ID_DSA, 0); #ifdef OPENSSL_HAS_ECC - len = 2 + strlen(_PATH_SSH_CLIENT_ID_ECDSA) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_ID_ECDSA); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_ID_ECDSA, 0); #endif + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_ID_ED25519, 0); } } if (options->escape_char == -1) @@ -1333,6 +1677,8 @@ fill_default_options(Options * options) options->enable_ssh_keysign = 0; if (options->rekey_limit == -1) options->rekey_limit = 0; + if (options->rekey_interval == -1) + options->rekey_interval = 0; if (options->verify_host_key_dns == -1) options->verify_host_key_dns = 0; if (options->server_alive_interval == -1) @@ -1367,8 +1713,24 @@ fill_default_options(Options * options) options->ip_qos_bulk = IPTOS_THROUGHPUT; if (options->request_tty == -1) options->request_tty = REQUEST_TTY_AUTO; - /* options->local_command should not be set by default */ - /* options->proxy_command should not be set by default */ + if (options->proxy_use_fdpass == -1) + options->proxy_use_fdpass = 0; + if (options->canonicalize_max_dots == -1) + options->canonicalize_max_dots = 1; + if (options->canonicalize_fallback_local == -1) + options->canonicalize_fallback_local = 1; + if (options->canonicalize_hostname == -1) + options->canonicalize_hostname = SSH_CANONICALISE_NO; +#define CLEAR_ON_NONE(v) \ + do { \ + if (v != NULL && strcasecmp(v, "none") == 0) { \ + free(v); \ + v = NULL; \ + } \ + } while(0) + CLEAR_ON_NONE(options->local_command); + CLEAR_ON_NONE(options->proxy_command); + CLEAR_ON_NONE(options->control_path); /* options->user will be set in the main program if appropriate */ /* options->hostname will be set in the main program if appropriate */ /* options->host_key_alias should not be set by default */ @@ -1395,7 +1757,7 @@ parse_forward(Forward *fwd, const char *fwdspec, int dynamicfwd, int remotefwd) cp = p = xstrdup(fwdspec); /* skip leading spaces */ - while (isspace(*cp)) + while (isspace((u_char)*cp)) cp++; for (i = 0; i < 4; ++i) @@ -1436,7 +1798,7 @@ parse_forward(Forward *fwd, const char *fwdspec, int dynamicfwd, int remotefwd) i = 0; /* failure */ } - xfree(p); + free(p); if (dynamicfwd) { if (!(i == 1 || i == 2)) @@ -1462,13 +1824,9 @@ parse_forward(Forward *fwd, const char *fwdspec, int dynamicfwd, int remotefwd) return (i); fail_free: - if (fwd->connect_host != NULL) { - xfree(fwd->connect_host); - fwd->connect_host = NULL; - } - if (fwd->listen_host != NULL) { - xfree(fwd->listen_host); - fwd->listen_host = NULL; - } + free(fwd->connect_host); + fwd->connect_host = NULL; + free(fwd->listen_host); + fwd->listen_host = NULL; return (0); } @@ -1,4 +1,4 @@ -/* $OpenBSD: readconf.h,v 1.91 2011/09/23 07:45:05 markus Exp $ */ +/* $OpenBSD: readconf.h,v 1.99 2013/10/16 22:49:38 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -29,7 +29,13 @@ typedef struct { /* Data structure for representing option data. */ #define MAX_SEND_ENV 256 -#define SSH_MAX_HOSTS_FILES 256 +#define SSH_MAX_HOSTS_FILES 32 +#define MAX_CANON_DOMAINS 32 + +struct allowed_cname { + char *source_list; + char *target_list; +}; typedef struct { int forward_agent; /* Forward authentication agent. */ @@ -96,6 +102,7 @@ typedef struct { int num_identity_files; /* Number of files for RSA/DSA identities. */ char *identity_files[SSH_MAX_IDENTITY_FILES]; + int identity_file_userprovided[SSH_MAX_IDENTITY_FILES]; Key *identity_keys[SSH_MAX_IDENTITY_FILES]; /* Local TCP/IP forward requests. */ @@ -109,6 +116,7 @@ typedef struct { int enable_ssh_keysign; int64_t rekey_limit; + int rekey_interval; int no_host_authentication_for_localhost; int identities_only; int server_alive_interval; @@ -135,8 +143,24 @@ typedef struct { int use_roaming; int request_tty; + + int proxy_use_fdpass; + + int num_canonical_domains; + char *canonical_domains[MAX_CANON_DOMAINS]; + int canonicalize_hostname; + int canonicalize_max_dots; + int canonicalize_fallback_local; + int num_permitted_cnames; + struct allowed_cname permitted_cnames[MAX_CANON_DOMAINS]; + + char *ignored_unknown; /* Pattern list of unknown tokens to ignore */ } Options; +#define SSH_CANONICALISE_NO 0 +#define SSH_CANONICALISE_YES 1 +#define SSH_CANONICALISE_ALWAYS 2 + #define SSHCTL_MASTER_NO 0 #define SSHCTL_MASTER_YES 1 #define SSHCTL_MASTER_AUTO 2 @@ -148,15 +172,20 @@ typedef struct { #define REQUEST_TTY_YES 2 #define REQUEST_TTY_FORCE 3 +#define SSHCONF_CHECKPERM 1 /* check permissions on config file */ +#define SSHCONF_USERCONF 2 /* user provided config file not system */ + void initialize_options(Options *); void fill_default_options(Options *); -int read_config_file(const char *, const char *, Options *, int); +int process_config_line(Options *, struct passwd *, const char *, char *, + const char *, int, int *, int); +int read_config_file(const char *, struct passwd *, const char *, + Options *, int); int parse_forward(Forward *, const char *, int, int); - -int -process_config_line(Options *, const char *, char *, const char *, int, int *); +int default_ssh_port(void); void add_local_forward(Options *, const Forward *); void add_remote_forward(Options *, const Forward *); +void add_identity_file(Options *, const char *, const char *, int); #endif /* READCONF_H */ @@ -1,4 +1,4 @@ -/* $OpenBSD: readpass.c,v 1.48 2010/12/15 00:49:27 djm Exp $ */ +/* $OpenBSD: readpass.c,v 1.49 2013/05/17 00:13:14 djm Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * @@ -186,7 +186,7 @@ ask_permission(const char *fmt, ...) if (*p == '\0' || *p == '\n' || strcasecmp(p, "yes") == 0) allowed = 1; - xfree(p); + free(p); } return (allowed); diff --git a/regress/.cvsignore b/regress/.cvsignore index f3c7a7c5..99add9cc 100644 --- a/regress/.cvsignore +++ b/regress/.cvsignore @@ -1 +1,29 @@ -Makefile +*-agent +*.copy +*.log +*.prv +*.pub +actual +authorized_keys_* +data +expect +host.rsa* +key.* +known_hosts +krl-* +modpipe +remote_pid +revoked-* +revoked-ca +revoked-keyid +revoked-serials +rsa +rsa1 +sftp-server.sh +ssh-log-wrapper.sh +ssh_config +ssh_proxy* +sshd_config +sshd_proxy* +t*.out +t*.out[0-9] diff --git a/regress/Makefile b/regress/Makefile index f114c27e..0c66b177 100644 --- a/regress/Makefile +++ b/regress/Makefile @@ -1,6 +1,6 @@ -# $OpenBSD: Makefile,v 1.58 2011/01/06 22:46:21 djm Exp $ +# $OpenBSD: Makefile,v 1.67 2013/12/06 13:52:46 markus Exp $ -REGRESS_TARGETS= t1 t2 t3 t4 t5 t6 t7 t8 t9 t-exec +REGRESS_TARGETS= t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t-exec tests: $(REGRESS_TARGETS) # Interop tests are not run by default @@ -8,6 +8,7 @@ interop interop-tests: t-exec-interop clean: for F in $(CLEANFILES); do rm -f $(OBJ)$$F; done + test -z "${SUDO}" || ${SUDO} rm -f ${SUDO_CLEAN} rm -rf $(OBJ).putty distclean: clean @@ -38,10 +39,12 @@ LTESTS= connect \ key-options \ scp \ sftp \ + sftp-chroot \ sftp-cmds \ sftp-badcmds \ sftp-batch \ sftp-glob \ + sftp-perm \ reconfigure \ dynamic-forward \ forwarding \ @@ -57,7 +60,11 @@ LTESTS= connect \ kextype \ cert-hostkey \ cert-userkey \ - host-expand + host-expand \ + keys-command \ + forward-control \ + integrity \ + krl INTEROP_TESTS= putty-transfer putty-ciphers putty-kex conch-ciphers #INTEROP_TESTS+=ssh-com ssh-com-client ssh-com-keygen ssh-com-sftp @@ -66,24 +73,34 @@ INTEROP_TESTS= putty-transfer putty-ciphers putty-kex conch-ciphers USER!= id -un CLEANFILES= t2.out t3.out t6.out1 t6.out2 t7.out t7.out.pub copy.1 copy.2 \ - t8.out t8.out.pub t9.out t9.out.pub \ - authorized_keys_${USER} known_hosts pidfile \ + t8.out t8.out.pub t9.out t9.out.pub t10.out t10.out.pub \ + authorized_keys_${USER} known_hosts pidfile testdata \ ssh_config sshd_config.orig ssh_proxy sshd_config sshd_proxy \ rsa.pub rsa rsa1.pub rsa1 host.rsa host.rsa1 \ rsa-agent rsa-agent.pub rsa1-agent rsa1-agent.pub \ ls.copy banner.in banner.out empty.in \ scp-ssh-wrapper.scp ssh_proxy_envpass remote_pid \ sshd_proxy_bak rsa_ssh2_cr.prv rsa_ssh2_crnl.prv \ - known_hosts-cert host_ca_key* cert_host_key* \ + known_hosts-cert host_ca_key* cert_host_key* cert_user_key* \ putty.rsa2 sshd_proxy_orig ssh_proxy_bak \ key.rsa-* key.dsa-* key.ecdsa-* \ - authorized_principals_${USER} expect actual + authorized_principals_${USER} expect actual ready \ + sshd_proxy.* authorized_keys_${USER}.* modpipe revoked-* krl-* \ + ssh.log failed-ssh.log sshd.log failed-sshd.log \ + regress.log failed-regress.log ssh-log-wrapper.sh \ + sftp-server.sh sftp-server.log sftp.log setuid-allowed \ + data ed25519-agent ed25519-agent.pub key.ed25519-512 \ + key.ed25519-512.pub + +SUDO_CLEAN+= /var/run/testdata_${USER} /var/run/keycommand_${USER} # Enable all malloc(3) randomisations and checks TEST_ENV= "MALLOC_OPTIONS=AFGJPRX" TEST_SSH_SSHKEYGEN?=ssh-keygen +CPPFLAGS=-I.. + t1: ${TEST_SSH_SSHKEYGEN} -if ${.CURDIR}/rsa_ssh2.prv | diff - ${.CURDIR}/rsa_openssh.prv tr '\n' '\r' <${.CURDIR}/rsa_ssh2.prv > ${.OBJDIR}/rsa_ssh2_cr.prv @@ -138,18 +155,26 @@ t9: $(OBJ)/t9.out test "${TEST_SSH_ECC}" != yes || \ ${TEST_SSH_SSHKEYGEN} -Bf $(OBJ)/t9.out > /dev/null + +$(OBJ)/t10.out: + ${TEST_SSH_SSHKEYGEN} -q -t ed25519 -N '' -f $@ + +t10: $(OBJ)/t10.out + ${TEST_SSH_SSHKEYGEN} -lf $(OBJ)/t10.out > /dev/null + ${TEST_SSH_SSHKEYGEN} -Bf $(OBJ)/t10.out > /dev/null + t-exec: ${LTESTS:=.sh} @if [ "x$?" = "x" ]; then exit 0; fi; \ for TEST in ""$?; do \ echo "run test $${TEST}" ... 1>&2; \ - (env SUDO="${SUDO}" TEST_ENV=${TEST_ENV} sh ${.CURDIR}/test-exec.sh ${.OBJDIR} ${.CURDIR}/$${TEST}) || exit $$?; \ + (env SUDO="${SUDO}" TEST_ENV=${TEST_ENV} ${TEST_SHELL} ${.CURDIR}/test-exec.sh ${.OBJDIR} ${.CURDIR}/$${TEST}) || exit $$?; \ done t-exec-interop: ${INTEROP_TESTS:=.sh} @if [ "x$?" = "x" ]; then exit 0; fi; \ for TEST in ""$?; do \ echo "run test $${TEST}" ... 1>&2; \ - (env SUDO="${SUDO}" TEST_ENV=${TEST_ENV} sh ${.CURDIR}/test-exec.sh ${.OBJDIR} ${.CURDIR}/$${TEST}) || exit $$?; \ + (env SUDO="${SUDO}" TEST_ENV=${TEST_ENV} ${TEST_SHELL} ${.CURDIR}/test-exec.sh ${.OBJDIR} ${.CURDIR}/$${TEST}) || exit $$?; \ done # Not run by default diff --git a/regress/addrmatch.sh b/regress/addrmatch.sh index 23ddd65c..1584bd40 100644 --- a/regress/addrmatch.sh +++ b/regress/addrmatch.sh @@ -1,4 +1,4 @@ -# $OpenBSD: addrmatch.sh,v 1.3 2010/02/09 04:57:36 djm Exp $ +# $OpenBSD: addrmatch.sh,v 1.4 2012/05/13 01:42:32 dtucker Exp $ # Placed in the Public Domain. tid="address match" @@ -7,39 +7,50 @@ mv $OBJ/sshd_proxy $OBJ/sshd_proxy_bak run_trial() { - user="$1"; addr="$2"; host="$3"; expected="$4"; descr="$5" + user="$1"; addr="$2"; host="$3"; laddr="$4"; lport="$5" + expected="$6"; descr="$7" verbose "test $descr for $user $addr $host" result=`${SSHD} -f $OBJ/sshd_proxy -T \ - -C user=${user},addr=${addr},host=${host} | \ - awk '/^passwordauthentication/ {print $2}'` + -C user=${user},addr=${addr},host=${host},laddr=${laddr},lport=${lport} | \ + awk '/^forcecommand/ {print $2}'` if [ "$result" != "$expected" ]; then - fail "failed for $user $addr $host: expected $expected, got $result" + fail "failed '$descr' expected $expected got $result" fi } cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy cat >>$OBJ/sshd_proxy <<EOD -PasswordAuthentication no +ForceCommand nomatch Match Address 192.168.0.0/16,!192.168.30.0/24,10.0.0.0/8,host.example.com - PasswordAuthentication yes + ForceCommand match1 Match Address 1.1.1.1,::1,!::3,2000::/16 - PasswordAuthentication yes + ForceCommand match2 +Match LocalAddress 127.0.0.1,::1 + ForceCommand match3 +Match LocalPort 5678 + ForceCommand match4 EOD -run_trial user 192.168.0.1 somehost yes "permit, first entry" -run_trial user 192.168.30.1 somehost no "deny, negative match" -run_trial user 19.0.0.1 somehost no "deny, no match" -run_trial user 10.255.255.254 somehost yes "permit, list middle" -run_trial user 192.168.30.1 192.168.0.1 no "deny, faked IP in hostname" -run_trial user 1.1.1.1 somehost.example.com yes "permit, bare IP4 address" -test "$TEST_SSH_IPV6" = "no" && exit -run_trial user ::1 somehost.example.com yes "permit, bare IP6 address" -run_trial user ::2 somehost.exaple.com no "deny IPv6" -run_trial user ::3 somehost no "deny IP6 negated" -run_trial user ::4 somehost no "deny, IP6 no match" -run_trial user 2000::1 somehost yes "permit, IP6 network" -run_trial user 2001::1 somehost no "deny, IP6 network" +run_trial user 192.168.0.1 somehost 1.2.3.4 1234 match1 "first entry" +run_trial user 192.168.30.1 somehost 1.2.3.4 1234 nomatch "negative match" +run_trial user 19.0.0.1 somehost 1.2.3.4 1234 nomatch "no match" +run_trial user 10.255.255.254 somehost 1.2.3.4 1234 match1 "list middle" +run_trial user 192.168.30.1 192.168.0.1 1.2.3.4 1234 nomatch "faked IP in hostname" +run_trial user 1.1.1.1 somehost.example.com 1.2.3.4 1234 match2 "bare IP4 address" +run_trial user 19.0.0.1 somehost 127.0.0.1 1234 match3 "localaddress" +run_trial user 19.0.0.1 somehost 1.2.3.4 5678 match4 "localport" + +if test "$TEST_SSH_IPV6" != "no"; then +run_trial user ::1 somehost.example.com ::2 1234 match2 "bare IP6 address" +run_trial user ::2 somehost.exaple.com ::2 1234 nomatch "deny IPv6" +run_trial user ::3 somehost ::2 1234 nomatch "IP6 negated" +run_trial user ::4 somehost ::2 1234 nomatch "IP6 no match" +run_trial user 2000::1 somehost ::2 1234 match2 "IP6 network" +run_trial user 2001::1 somehost ::2 1234 nomatch "IP6 network" +run_trial user ::5 somehost ::1 1234 match3 "IP6 localaddress" +run_trial user ::5 somehost ::2 5678 match4 "IP6 localport" +fi cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy rm $OBJ/sshd_proxy_bak diff --git a/regress/agent-getpeereid.sh b/regress/agent-getpeereid.sh index faf654c0..d5ae2d6e 100644 --- a/regress/agent-getpeereid.sh +++ b/regress/agent-getpeereid.sh @@ -1,4 +1,4 @@ -# $OpenBSD: agent-getpeereid.sh,v 1.4 2007/11/25 15:35:09 jmc Exp $ +# $OpenBSD: agent-getpeereid.sh,v 1.5 2013/05/17 10:33:09 dtucker Exp $ # Placed in the Public Domain. tid="disallow agent attach from other uid" @@ -18,7 +18,6 @@ if [ -z "$SUDO" ]; then exit 0 fi - trace "start agent" eval `${SSHAGENT} -s -a ${ASOCK}` > /dev/null r=$? diff --git a/regress/agent-ptrace.sh b/regress/agent-ptrace.sh index 9f29464c..ae150641 100644 --- a/regress/agent-ptrace.sh +++ b/regress/agent-ptrace.sh @@ -19,6 +19,13 @@ else exit 0 fi +if $OBJ/setuid-allowed ${SSHAGENT} ; then + : ok +else + echo "skipped (${SSHAGENT} is mounted on a no-setuid filesystem)" + exit 0 +fi + if test -z "$SUDO" ; then echo "skipped (SUDO not set)" exit 0 @@ -38,8 +45,9 @@ else gdb ${SSHAGENT} ${SSH_AGENT_PID} > ${OBJ}/gdb.out 2>&1 << EOF quit EOF - if [ $? -ne 0 ]; then - fail "gdb failed: exit code $?" + r=$? + if [ $r -ne 0 ]; then + fail "gdb failed: exit code $r" fi egrep 'ptrace: Operation not permitted.|procfs:.*Permission denied.|ttrace.*Permission denied.|procfs:.*: Invalid argument.|Unable to access task ' >/dev/null ${OBJ}/gdb.out r=$? diff --git a/regress/agent-timeout.sh b/regress/agent-timeout.sh index 3a40e7af..68826594 100644 --- a/regress/agent-timeout.sh +++ b/regress/agent-timeout.sh @@ -1,4 +1,4 @@ -# $OpenBSD: agent-timeout.sh,v 1.1 2002/06/06 00:38:40 markus Exp $ +# $OpenBSD: agent-timeout.sh,v 1.2 2013/05/17 01:16:09 dtucker Exp $ # Placed in the Public Domain. tid="agent timeout test" diff --git a/regress/agent.sh b/regress/agent.sh index 094cf694..cf1a45fe 100644 --- a/regress/agent.sh +++ b/regress/agent.sh @@ -1,4 +1,4 @@ -# $OpenBSD: agent.sh,v 1.7 2007/11/25 15:35:09 jmc Exp $ +# $OpenBSD: agent.sh,v 1.9 2013/12/06 13:52:46 markus Exp $ # Placed in the Public Domain. tid="simple agent test" @@ -19,8 +19,8 @@ else fail "ssh-add -l did not fail with exit code 1" fi trace "overwrite authorized keys" - echon > $OBJ/authorized_keys_$USER - for t in rsa rsa1; do + printf '' > $OBJ/authorized_keys_$USER + for t in ed25519 rsa rsa1; do # generate user key for agent rm -f $OBJ/$t-agent ${SSHKEYGEN} -q -N '' -t $t -f $OBJ/$t-agent ||\ @@ -34,40 +34,46 @@ else fi done ${SSHADD} -l > /dev/null 2>&1 - if [ $? -ne 0 ]; then - fail "ssh-add -l failed: exit code $?" + r=$? + if [ $r -ne 0 ]; then + fail "ssh-add -l failed: exit code $r" fi # the same for full pubkey output ${SSHADD} -L > /dev/null 2>&1 - if [ $? -ne 0 ]; then - fail "ssh-add -L failed: exit code $?" + r=$? + if [ $r -ne 0 ]; then + fail "ssh-add -L failed: exit code $r" fi trace "simple connect via agent" for p in 1 2; do ${SSH} -$p -F $OBJ/ssh_proxy somehost exit 5$p - if [ $? -ne 5$p ]; then - fail "ssh connect with protocol $p failed (exit code $?)" + r=$? + if [ $r -ne 5$p ]; then + fail "ssh connect with protocol $p failed (exit code $r)" fi done trace "agent forwarding" for p in 1 2; do ${SSH} -A -$p -F $OBJ/ssh_proxy somehost ${SSHADD} -l > /dev/null 2>&1 - if [ $? -ne 0 ]; then - fail "ssh-add -l via agent fwd proto $p failed (exit code $?)" + r=$? + if [ $r -ne 0 ]; then + fail "ssh-add -l via agent fwd proto $p failed (exit code $r)" fi ${SSH} -A -$p -F $OBJ/ssh_proxy somehost \ "${SSH} -$p -F $OBJ/ssh_proxy somehost exit 5$p" - if [ $? -ne 5$p ]; then - fail "agent fwd proto $p failed (exit code $?)" + r=$? + if [ $r -ne 5$p ]; then + fail "agent fwd proto $p failed (exit code $r)" fi done trace "delete all agent keys" ${SSHADD} -D > /dev/null 2>&1 - if [ $? -ne 0 ]; then - fail "ssh-add -D failed: exit code $?" + r=$? + if [ $r -ne 0 ]; then + fail "ssh-add -D failed: exit code $r" fi trace "kill agent" diff --git a/regress/bsd.regress.mk b/regress/bsd.regress.mk deleted file mode 100644 index 9b8011a0..00000000 --- a/regress/bsd.regress.mk +++ /dev/null @@ -1,79 +0,0 @@ -# $OpenBSD: bsd.regress.mk,v 1.9 2002/02/17 01:10:15 marc Exp $ -# No man pages for regression tests. -NOMAN= - -# No installation. -install: - -# If REGRESSTARGETS is defined and PROG is not defined, set NOPROG -.if defined(REGRESSTARGETS) && !defined(PROG) -NOPROG= -.endif - -.include <bsd.prog.mk> - -.MAIN: all -all: regress - -# XXX - Need full path to REGRESSLOG, otherwise there will be much pain. - -REGRESSLOG?=/dev/null -REGRESSNAME=${.CURDIR:S/${BSDSRCDIR}\/regress\///} - -.if defined(PROG) && !empty(PROG) -run-regress-${PROG}: ${PROG} - ./${PROG} -.endif - -.if !defined(REGRESSTARGETS) -REGRESSTARGETS=run-regress-${PROG} -. if defined(REGRESSSKIP) -REGRESSSKIPTARGETS=run-regress-${PROG} -. endif -.endif - -REGRESSSKIPSLOW?=no - -#.if (${REGRESSSKIPSLOW:L} == "yes") && defined(REGRESSSLOWTARGETS) - -.if (${REGRESSSKIPSLOW} == "yes") && defined(REGRESSSLOWTARGETS) -REGRESSSKIPTARGETS+=${REGRESSSLOWTARGETS} -.endif - -.if defined(REGRESSROOTTARGETS) -ROOTUSER!=id -g -SUDO?= -. if (${ROOTUSER} != 0) && empty(SUDO) -REGRESSSKIPTARGETS+=${REGRESSROOTTARGETS} -. endif -.endif - -REGRESSSKIPTARGETS?= - -regress: -.for RT in ${REGRESSTARGETS} -. if ${REGRESSSKIPTARGETS:M${RT}} - @echo -n "SKIP " >> ${REGRESSLOG} -. else -# XXX - we need a better method to see if a test fails due to timeout or just -# normal failure. -. if !defined(REGRESSMAXTIME) - @if cd ${.CURDIR} && ${MAKE} ${RT}; then \ - echo -n "SUCCESS " >> ${REGRESSLOG} ; \ - else \ - echo -n "FAIL " >> ${REGRESSLOG} ; \ - echo FAILED ; \ - fi -. else - @if cd ${.CURDIR} && (ulimit -t ${REGRESSMAXTIME} ; ${MAKE} ${RT}); then \ - echo -n "SUCCESS " >> ${REGRESSLOG} ; \ - else \ - echo -n "FAIL (possible timeout) " >> ${REGRESSLOG} ; \ - echo FAILED ; \ - fi -. endif -. endif - @echo ${REGRESSNAME}/${RT:S/^run-regress-//} >> ${REGRESSLOG} -.endfor - -.PHONY: regress diff --git a/regress/cert-hostkey.sh b/regress/cert-hostkey.sh index 6216abd8..a1318cd5 100644 --- a/regress/cert-hostkey.sh +++ b/regress/cert-hostkey.sh @@ -1,14 +1,8 @@ -# $OpenBSD: cert-hostkey.sh,v 1.6 2011/05/20 02:43:36 djm Exp $ +# $OpenBSD: cert-hostkey.sh,v 1.8 2013/12/06 13:52:46 markus Exp $ # Placed in the Public Domain. tid="certified host keys" -# used to disable ECC based tests on platforms without ECC -ecdsa="" -if test "x$TEST_SSH_ECC" = "xyes"; then - ecdsa=ecdsa -fi - rm -f $OBJ/known_hosts-cert $OBJ/host_ca_key* $OBJ/cert_host_key* cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak @@ -18,13 +12,22 @@ HOSTS='localhost-with-alias,127.0.0.1,::1' ${SSHKEYGEN} -q -N '' -t rsa -f $OBJ/host_ca_key ||\ fail "ssh-keygen of host_ca_key failed" ( - echon '@cert-authority ' - echon "$HOSTS " + printf '@cert-authority ' + printf "$HOSTS " cat $OBJ/host_ca_key.pub ) > $OBJ/known_hosts-cert +PLAIN_TYPES=`$SSH -Q key-plain | sed 's/^ssh-dss/ssh-dsa/g;s/^ssh-//'` + +type_has_legacy() { + case $1 in + ed25519*|ecdsa*) return 1 ;; + esac + return 0 +} + # Generate and sign host keys -for ktype in rsa dsa $ecdsa ; do +for ktype in $PLAIN_TYPES ; do verbose "$tid: sign host ${ktype} cert" # Generate and sign a host key ${SSHKEYGEN} -q -N '' -t ${ktype} \ @@ -34,10 +37,10 @@ for ktype in rsa dsa $ecdsa ; do -I "regress host key for $USER" \ -n $HOSTS $OBJ/cert_host_key_${ktype} || fail "couldn't sign cert_host_key_${ktype}" - # v00 ecdsa certs do not exist - test "${ktype}" = "ecdsa" && continue + type_has_legacy $ktype || continue cp $OBJ/cert_host_key_${ktype} $OBJ/cert_host_key_${ktype}_v00 cp $OBJ/cert_host_key_${ktype}.pub $OBJ/cert_host_key_${ktype}_v00.pub + verbose "$tid: sign host ${ktype}_v00 cert" ${SSHKEYGEN} -t v00 -h -q -s $OBJ/host_ca_key \ -I "regress host key for $USER" \ -n $HOSTS $OBJ/cert_host_key_${ktype}_v00 || @@ -46,7 +49,7 @@ done # Basic connect tests for privsep in yes no ; do - for ktype in rsa dsa $ecdsa rsa_v00 dsa_v00; do + for ktype in $PLAIN_TYPES rsa_v00 dsa_v00; do verbose "$tid: host ${ktype} cert connect privsep $privsep" ( cat $OBJ/sshd_proxy_bak @@ -66,29 +69,16 @@ done # Revoked certificates with key present ( - echon '@cert-authority ' - echon "$HOSTS " + printf '@cert-authority ' + printf "$HOSTS " cat $OBJ/host_ca_key.pub - echon '@revoked ' - echon "* " - cat $OBJ/cert_host_key_rsa.pub - if test "x$TEST_SSH_ECC" = "xyes"; then - echon '@revoked ' - echon "* " - cat $OBJ/cert_host_key_ecdsa.pub - fi - echon '@revoked ' - echon "* " - cat $OBJ/cert_host_key_dsa.pub - echon '@revoked ' - echon "* " - cat $OBJ/cert_host_key_rsa_v00.pub - echon '@revoked ' - echon "* " - cat $OBJ/cert_host_key_dsa_v00.pub + for ktype in $PLAIN_TYPES rsa_v00 dsa_v00; do + test -f "$OBJ/cert_host_key_${ktype}.pub" || fatal "no pubkey" + printf "@revoked * `cat $OBJ/cert_host_key_${ktype}.pub`\n" + done ) > $OBJ/known_hosts-cert for privsep in yes no ; do - for ktype in rsa dsa $ecdsa rsa_v00 dsa_v00; do + for ktype in $PLAIN_TYPES rsa_v00 dsa_v00; do verbose "$tid: host ${ktype} revoked cert privsep $privsep" ( cat $OBJ/sshd_proxy_bak @@ -108,14 +98,14 @@ done # Revoked CA ( - echon '@cert-authority ' - echon "$HOSTS " + printf '@cert-authority ' + printf "$HOSTS " cat $OBJ/host_ca_key.pub - echon '@revoked ' - echon "* " + printf '@revoked ' + printf "* " cat $OBJ/host_ca_key.pub ) > $OBJ/known_hosts-cert -for ktype in rsa dsa $ecdsa rsa_v00 dsa_v00 ; do +for ktype in $PLAIN_TYPES rsa_v00 dsa_v00 ; do verbose "$tid: host ${ktype} revoked cert" ( cat $OBJ/sshd_proxy_bak @@ -132,8 +122,8 @@ done # Create a CA key and add it to known hosts ( - echon '@cert-authority ' - echon "$HOSTS " + printf '@cert-authority ' + printf "$HOSTS " cat $OBJ/host_ca_key.pub ) > $OBJ/known_hosts-cert @@ -186,9 +176,8 @@ test_one "cert has constraints" failure "-h -Oforce-command=false" # Check downgrade of cert to raw key when no CA found for v in v01 v00 ; do - for ktype in rsa dsa $ecdsa ; do - # v00 ecdsa certs do not exist. - test "${v}${ktype}" = "v00ecdsa" && continue + for ktype in $PLAIN_TYPES ; do + type_has_legacy $ktype || continue rm -f $OBJ/known_hosts-cert $OBJ/cert_host_key* verbose "$tid: host ${ktype} ${v} cert downgrade to raw key" # Generate and sign a host key @@ -200,7 +189,7 @@ for v in v01 v00 ; do -n $HOSTS $OBJ/cert_host_key_${ktype} || fail "couldn't sign cert_host_key_${ktype}" ( - echon "$HOSTS " + printf "$HOSTS " cat $OBJ/cert_host_key_${ktype}.pub ) > $OBJ/known_hosts-cert ( @@ -220,14 +209,13 @@ done # Wrong certificate ( - echon '@cert-authority ' - echon "$HOSTS " + printf '@cert-authority ' + printf "$HOSTS " cat $OBJ/host_ca_key.pub ) > $OBJ/known_hosts-cert for v in v01 v00 ; do - for kt in rsa dsa $ecdsa ; do - # v00 ecdsa certs do not exist. - test "${v}${ktype}" = "v00ecdsa" && continue + for kt in $PLAIN_TYPES ; do + type_has_legacy $kt || continue rm -f $OBJ/cert_host_key* # Self-sign key ${SSHKEYGEN} -q -N '' -t ${kt} \ diff --git a/regress/cert-userkey.sh b/regress/cert-userkey.sh index 6700db27..b093a919 100644 --- a/regress/cert-userkey.sh +++ b/regress/cert-userkey.sh @@ -1,43 +1,45 @@ -# $OpenBSD: cert-userkey.sh,v 1.8 2011/05/17 07:13:31 djm Exp $ +# $OpenBSD: cert-userkey.sh,v 1.12 2013/12/06 13:52:46 markus Exp $ # Placed in the Public Domain. tid="certified user keys" -# used to disable ECC based tests on platforms without ECC -ecdsa="" -if test "x$TEST_SSH_ECC" = "xyes"; then - ecdsa=ecdsa -fi - rm -f $OBJ/authorized_keys_$USER $OBJ/user_ca_key* $OBJ/cert_user_key* cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak +PLAIN_TYPES=`$SSH -Q key-plain | sed 's/^ssh-dss/ssh-dsa/;s/^ssh-//'` + +type_has_legacy() { + case $1 in + ed25519*|ecdsa*) return 1 ;; + esac + return 0 +} + # Create a CA key ${SSHKEYGEN} -q -N '' -t rsa -f $OBJ/user_ca_key ||\ fail "ssh-keygen of user_ca_key failed" # Generate and sign user keys -for ktype in rsa dsa $ecdsa ; do +for ktype in $PLAIN_TYPES ; do verbose "$tid: sign user ${ktype} cert" ${SSHKEYGEN} -q -N '' -t ${ktype} \ -f $OBJ/cert_user_key_${ktype} || \ fail "ssh-keygen of cert_user_key_${ktype} failed" - ${SSHKEYGEN} -q -s $OBJ/user_ca_key -I \ - "regress user key for $USER" \ - -n ${USER},mekmitasdigoat $OBJ/cert_user_key_${ktype} || + ${SSHKEYGEN} -q -s $OBJ/user_ca_key -I "regress user key for $USER" \ + -z $$ -n ${USER},mekmitasdigoat $OBJ/cert_user_key_${ktype} || fail "couldn't sign cert_user_key_${ktype}" - # v00 ecdsa certs do not exist - test "${ktype}" = "ecdsa" && continue + type_has_legacy $ktype || continue cp $OBJ/cert_user_key_${ktype} $OBJ/cert_user_key_${ktype}_v00 cp $OBJ/cert_user_key_${ktype}.pub $OBJ/cert_user_key_${ktype}_v00.pub + verbose "$tid: sign host ${ktype}_v00 cert" ${SSHKEYGEN} -q -t v00 -s $OBJ/user_ca_key -I \ "regress user key for $USER" \ -n ${USER},mekmitasdigoat $OBJ/cert_user_key_${ktype}_v00 || - fail "couldn't sign cert_user_key_${ktype}_v00" + fatal "couldn't sign cert_user_key_${ktype}_v00" done # Test explicitly-specified principals -for ktype in rsa dsa $ecdsa rsa_v00 dsa_v00 ; do +for ktype in $PLAIN_TYPES rsa_v00 dsa_v00 ; do for privsep in yes no ; do _prefix="${ktype} privsep $privsep" @@ -127,7 +129,7 @@ for ktype in rsa dsa $ecdsa rsa_v00 dsa_v00 ; do # Wrong principals list verbose "$tid: ${_prefix} wrong principals key option" ( - echon 'cert-authority,principals="gregorsamsa" ' + printf 'cert-authority,principals="gregorsamsa" ' cat $OBJ/user_ca_key.pub ) > $OBJ/authorized_keys_$USER ${SSH} -2i $OBJ/cert_user_key_${ktype} \ @@ -139,7 +141,7 @@ for ktype in rsa dsa $ecdsa rsa_v00 dsa_v00 ; do # Correct principals list verbose "$tid: ${_prefix} correct principals key option" ( - echon 'cert-authority,principals="mekmitasdigoat" ' + printf 'cert-authority,principals="mekmitasdigoat" ' cat $OBJ/user_ca_key.pub ) > $OBJ/authorized_keys_$USER ${SSH} -2i $OBJ/cert_user_key_${ktype} \ @@ -155,7 +157,7 @@ basic_tests() { if test "x$auth" = "xauthorized_keys" ; then # Add CA to authorized_keys ( - echon 'cert-authority ' + printf 'cert-authority ' cat $OBJ/user_ca_key.pub ) > $OBJ/authorized_keys_$USER else @@ -163,7 +165,7 @@ basic_tests() { extra_sshd="TrustedUserCAKeys $OBJ/user_ca_key.pub" fi - for ktype in rsa dsa $ecdsa rsa_v00 dsa_v00 ; do + for ktype in $PLAIN_TYPES rsa_v00 dsa_v00 ; do for privsep in yes no ; do _prefix="${ktype} privsep $privsep $auth" # Simple connect @@ -185,14 +187,32 @@ basic_tests() { ( cat $OBJ/sshd_proxy_bak echo "UsePrivilegeSeparation $privsep" - echo "RevokedKeys $OBJ/cert_user_key_${ktype}.pub" + echo "RevokedKeys $OBJ/cert_user_key_revoked" echo "$extra_sshd" ) > $OBJ/sshd_proxy + cp $OBJ/cert_user_key_${ktype}.pub \ + $OBJ/cert_user_key_revoked + ${SSH} -2i $OBJ/cert_user_key_${ktype} \ + -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1 + if [ $? -eq 0 ]; then + fail "ssh cert connect succeeded unexpecedly" + fi + verbose "$tid: ${_prefix} revoked via KRL" + rm $OBJ/cert_user_key_revoked + ${SSHKEYGEN} -kqf $OBJ/cert_user_key_revoked \ + $OBJ/cert_user_key_${ktype}.pub ${SSH} -2i $OBJ/cert_user_key_${ktype} \ -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1 if [ $? -eq 0 ]; then fail "ssh cert connect succeeded unexpecedly" fi + verbose "$tid: ${_prefix} empty KRL" + ${SSHKEYGEN} -kqf $OBJ/cert_user_key_revoked + ${SSH} -2i $OBJ/cert_user_key_${ktype} \ + -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1 + if [ $? -ne 0 ]; then + fail "ssh cert connect failed" + fi done # Revoked CA @@ -247,7 +267,7 @@ test_one() { if test "x$auth" = "xauthorized_keys" ; then # Add CA to authorized_keys ( - echon "cert-authority${auth_opt} " + printf "cert-authority${auth_opt} " cat $OBJ/user_ca_key.pub ) > $OBJ/authorized_keys_$USER else @@ -315,7 +335,7 @@ test_one "principals key option no principals" failure "" \ # Wrong certificate cat $OBJ/sshd_proxy_bak > $OBJ/sshd_proxy -for ktype in rsa dsa $ecdsa rsa_v00 dsa_v00 ; do +for ktype in $PLAIN_TYPES rsa_v00 dsa_v00 ; do case $ktype in *_v00) args="-t v00" ;; *) args="" ;; diff --git a/regress/cfgmatch.sh b/regress/cfgmatch.sh index 0603fab6..80cf2293 100644 --- a/regress/cfgmatch.sh +++ b/regress/cfgmatch.sh @@ -1,4 +1,4 @@ -# $OpenBSD: cfgmatch.sh,v 1.6 2011/06/03 05:35:10 dtucker Exp $ +# $OpenBSD: cfgmatch.sh,v 1.8 2013/05/17 00:37:40 dtucker Exp $ # Placed in the Public Domain. tid="sshd_config match" @@ -15,7 +15,7 @@ start_client() rm -f $pidfile ${SSH} -q -$p $fwd "$@" somehost \ exec sh -c \'"echo \$\$ > $pidfile; exec sleep 100"\' \ - >>$TEST_SSH_LOGFILE 2>&1 & + >>$TEST_REGRESS_LOGFILE 2>&1 & client_pid=$! # Wait for remote end n=0 @@ -34,21 +34,20 @@ stop_client() pid=`cat $pidfile` if [ ! -z "$pid" ]; then kill $pid - sleep 1 fi wait } cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak -grep -v AuthorizedKeysFile $OBJ/sshd_proxy_bak > $OBJ/sshd_proxy -echo "AuthorizedKeysFile /dev/null" >>$OBJ/sshd_proxy echo "PermitOpen 127.0.0.1:1" >>$OBJ/sshd_config -echo "Match user $USER" >>$OBJ/sshd_proxy -echo "AuthorizedKeysFile /dev/null $OBJ/authorized_keys_%u" >>$OBJ/sshd_proxy echo "Match Address 127.0.0.1" >>$OBJ/sshd_config echo "PermitOpen 127.0.0.1:$PORT" >>$OBJ/sshd_config +grep -v AuthorizedKeysFile $OBJ/sshd_proxy_bak > $OBJ/sshd_proxy +echo "AuthorizedKeysFile /dev/null" >>$OBJ/sshd_proxy echo "PermitOpen 127.0.0.1:1" >>$OBJ/sshd_proxy +echo "Match user $USER" >>$OBJ/sshd_proxy +echo "AuthorizedKeysFile /dev/null $OBJ/authorized_keys_%u" >>$OBJ/sshd_proxy echo "Match Address 127.0.0.1" >>$OBJ/sshd_proxy echo "PermitOpen 127.0.0.1:$PORT" >>$OBJ/sshd_proxy @@ -75,9 +74,9 @@ for p in 1 2; do done # Retry previous with key option, should also be denied. -echon 'permitopen="127.0.0.1:'$PORT'" ' >$OBJ/authorized_keys_$USER +printf 'permitopen="127.0.0.1:'$PORT'" ' >$OBJ/authorized_keys_$USER cat $OBJ/rsa.pub >> $OBJ/authorized_keys_$USER -echon 'permitopen="127.0.0.1:'$PORT'" ' >>$OBJ/authorized_keys_$USER +printf 'permitopen="127.0.0.1:'$PORT'" ' >>$OBJ/authorized_keys_$USER cat $OBJ/rsa1.pub >> $OBJ/authorized_keys_$USER for p in 1 2; do trace "match permitopen proxy w/key opts proto $p" diff --git a/regress/cipher-speed.sh b/regress/cipher-speed.sh index 257afd17..a6d53a78 100644 --- a/regress/cipher-speed.sh +++ b/regress/cipher-speed.sh @@ -1,29 +1,20 @@ -# $OpenBSD: cipher-speed.sh,v 1.4 2011/08/02 01:23:41 djm Exp $ +# $OpenBSD: cipher-speed.sh,v 1.11 2013/11/21 03:18:51 djm Exp $ # Placed in the Public Domain. tid="cipher speed" getbytes () { - sed -n '/transferred/s/.*secs (\(.* bytes.sec\).*/\1/p' + sed -n -e '/transferred/s/.*secs (\(.* bytes.sec\).*/\1/p' \ + -e '/copied/s/.*s, \(.* MB.s\).*/\1/p' } tries="1 2" -DATA=/bin/ls -DATA=/bsd -ciphers="aes128-cbc 3des-cbc blowfish-cbc cast128-cbc - arcfour128 arcfour256 arcfour - aes192-cbc aes256-cbc rijndael-cbc@lysator.liu.se - aes128-ctr aes192-ctr aes256-ctr" -macs="hmac-sha1 hmac-md5 umac-64@openssh.com hmac-sha1-96 hmac-md5-96" -config_defined HAVE_EVP_SHA256 && - macs="$macs hmac-sha2-256 hmac-sha2-256-96 hmac-sha2-512 hmac-sha2-512-96" - -for c in $ciphers; do for m in $macs; do +for c in `${SSH} -Q cipher`; do n=0; for m in `${SSH} -Q mac`; do trace "proto 2 cipher $c mac $m" for x in $tries; do - echon "$c/$m:\t" + printf "%-60s" "$c/$m:" ( ${SSH} -o 'compression no' \ -F $OBJ/ssh_proxy -2 -m $m -c $c somehost \ exec sh -c \'"dd of=/dev/null obs=32k"\' \ @@ -33,13 +24,18 @@ for c in $ciphers; do for m in $macs; do fail "ssh -2 failed with mac $m cipher $c" fi done + # No point trying all MACs for AEAD ciphers since they are ignored. + if ssh -Q cipher-auth | grep "^${c}\$" >/dev/null 2>&1 ; then + break + fi + n=`expr $n + 1` done; done ciphers="3des blowfish" for c in $ciphers; do trace "proto 1 cipher $c" for x in $tries; do - echon "$c:\t" + printf "%-60s" "$c:" ( ${SSH} -o 'compression no' \ -F $OBJ/ssh_proxy -1 -c $c somehost \ exec sh -c \'"dd of=/dev/null obs=32k"\' \ diff --git a/regress/conch-ciphers.sh b/regress/conch-ciphers.sh index 5b65cd99..199d863a 100644 --- a/regress/conch-ciphers.sh +++ b/regress/conch-ciphers.sh @@ -1,11 +1,8 @@ -# $OpenBSD: conch-ciphers.sh,v 1.2 2008/06/30 10:43:03 djm Exp $ +# $OpenBSD: conch-ciphers.sh,v 1.3 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="conch ciphers" -DATA=/bin/ls -COPY=${OBJ}/copy - if test "x$REGRESS_INTEROP_CONCH" != "xyes" ; then echo "conch interop tests not enabled" exit 0 diff --git a/regress/connect-privsep.sh b/regress/connect-privsep.sh index 11fb9aef..94cc64ac 100644 --- a/regress/connect-privsep.sh +++ b/regress/connect-privsep.sh @@ -1,4 +1,4 @@ -# $OpenBSD: connect-privsep.sh,v 1.2 2011/06/30 22:44:43 markus Exp $ +# $OpenBSD: connect-privsep.sh,v 1.4 2012/07/02 14:37:06 dtucker Exp $ # Placed in the Public Domain. tid="proxy connect with privsep" @@ -23,3 +23,14 @@ for p in 1 2; do warn "ssh privsep/sandbox+proxyconnect protocol $p failed" fi done + +# Because sandbox is sensitive to changes in libc, especially malloc, retest +# with every malloc.conf option (and none). +for m in '' A F G H J P R S X Z '<' '>'; do + for p in 1 2; do + env MALLOC_OPTIONS="$m" ${SSH} -$p -F $OBJ/ssh_proxy 999.999.999.999 true + if [ $? -ne 0 ]; then + fail "ssh privsep/sandbox+proxyconnect protocol $p mopt '$m' failed" + fi + done +done diff --git a/regress/dynamic-forward.sh b/regress/dynamic-forward.sh index d1ab8059..42fa8acd 100644 --- a/regress/dynamic-forward.sh +++ b/regress/dynamic-forward.sh @@ -1,12 +1,10 @@ -# $OpenBSD: dynamic-forward.sh,v 1.9 2011/06/03 00:29:52 dtucker Exp $ +# $OpenBSD: dynamic-forward.sh,v 1.10 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="dynamic forwarding" FWDPORT=`expr $PORT + 1` -DATA=/bin/ls${EXEEXT} - if have_prog nc && nc -h 2>&1 | grep "proxy address" >/dev/null; then proxycmd="nc -x 127.0.0.1:$FWDPORT -X" elif have_prog connect; then diff --git a/regress/forcecommand.sh b/regress/forcecommand.sh index 99e51a60..44d2b7ff 100644 --- a/regress/forcecommand.sh +++ b/regress/forcecommand.sh @@ -1,13 +1,13 @@ -# $OpenBSD: forcecommand.sh,v 1.1 2006/07/19 13:09:28 dtucker Exp $ +# $OpenBSD: forcecommand.sh,v 1.2 2013/05/17 00:37:40 dtucker Exp $ # Placed in the Public Domain. tid="forced command" cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak -echon 'command="true" ' >$OBJ/authorized_keys_$USER +printf 'command="true" ' >$OBJ/authorized_keys_$USER cat $OBJ/rsa.pub >> $OBJ/authorized_keys_$USER -echon 'command="true" ' >>$OBJ/authorized_keys_$USER +printf 'command="true" ' >>$OBJ/authorized_keys_$USER cat $OBJ/rsa1.pub >> $OBJ/authorized_keys_$USER for p in 1 2; do @@ -16,9 +16,9 @@ for p in 1 2; do fail "forced command in key proto $p" done -echon 'command="false" ' >$OBJ/authorized_keys_$USER +printf 'command="false" ' >$OBJ/authorized_keys_$USER cat $OBJ/rsa.pub >> $OBJ/authorized_keys_$USER -echon 'command="false" ' >>$OBJ/authorized_keys_$USER +printf 'command="false" ' >>$OBJ/authorized_keys_$USER cat $OBJ/rsa1.pub >> $OBJ/authorized_keys_$USER cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy diff --git a/regress/forward-control.sh b/regress/forward-control.sh new file mode 100644 index 00000000..7f7d105e --- /dev/null +++ b/regress/forward-control.sh @@ -0,0 +1,168 @@ +# $OpenBSD: forward-control.sh,v 1.2 2013/11/18 05:09:32 naddy Exp $ +# Placed in the Public Domain. + +tid="sshd control of local and remote forwarding" + +LFWD_PORT=3320 +RFWD_PORT=3321 +CTL=$OBJ/ctl-sock +READY=$OBJ/ready + +wait_for_file_to_appear() { + _path=$1 + _n=0 + while test ! -f $_path ; do + test $_n -eq 1 && trace "waiting for $_path to appear" + _n=`expr $_n + 1` + test $_n -ge 20 && return 1 + sleep 1 + done + return 0 +} + +wait_for_process_to_exit() { + _pid=$1 + _n=0 + while kill -0 $_pid 2>/dev/null ; do + test $_n -eq 1 && trace "waiting for $_pid to exit" + _n=`expr $_n + 1` + test $_n -ge 20 && return 1 + sleep 1 + done + return 0 +} + +# usage: check_lfwd protocol Y|N message +check_lfwd() { + _proto=$1 + _expected=$2 + _message=$3 + rm -f $READY + ${SSH} -oProtocol=$_proto -F $OBJ/ssh_proxy \ + -L$LFWD_PORT:127.0.0.1:$PORT \ + -o ExitOnForwardFailure=yes \ + -n host exec sh -c \'"sleep 60 & echo \$! > $READY ; wait "\' \ + >/dev/null 2>&1 & + _sshpid=$! + wait_for_file_to_appear $READY || \ + fatal "check_lfwd ssh fail: $_message" + ${SSH} -F $OBJ/ssh_config -p $LFWD_PORT \ + -oConnectionAttempts=4 host true >/dev/null 2>&1 + _result=$? + kill $_sshpid `cat $READY` 2>/dev/null + wait_for_process_to_exit $_sshpid + if test "x$_expected" = "xY" -a $_result -ne 0 ; then + fail "check_lfwd failed (expecting success): $_message" + elif test "x$_expected" = "xN" -a $_result -eq 0 ; then + fail "check_lfwd succeeded (expecting failure): $_message" + elif test "x$_expected" != "xY" -a "x$_expected" != "xN" ; then + fatal "check_lfwd invalid argument \"$_expected\"" + else + verbose "check_lfwd done (expecting $_expected): $_message" + fi +} + +# usage: check_rfwd protocol Y|N message +check_rfwd() { + _proto=$1 + _expected=$2 + _message=$3 + rm -f $READY + ${SSH} -oProtocol=$_proto -F $OBJ/ssh_proxy \ + -R$RFWD_PORT:127.0.0.1:$PORT \ + -o ExitOnForwardFailure=yes \ + -n host exec sh -c \'"sleep 60 & echo \$! > $READY ; wait "\' \ + >/dev/null 2>&1 & + _sshpid=$! + wait_for_file_to_appear $READY + _result=$? + if test $_result -eq 0 ; then + ${SSH} -F $OBJ/ssh_config -p $RFWD_PORT \ + -oConnectionAttempts=4 host true >/dev/null 2>&1 + _result=$? + kill $_sshpid `cat $READY` 2>/dev/null + wait_for_process_to_exit $_sshpid + fi + if test "x$_expected" = "xY" -a $_result -ne 0 ; then + fail "check_rfwd failed (expecting success): $_message" + elif test "x$_expected" = "xN" -a $_result -eq 0 ; then + fail "check_rfwd succeeded (expecting failure): $_message" + elif test "x$_expected" != "xY" -a "x$_expected" != "xN" ; then + fatal "check_rfwd invalid argument \"$_expected\"" + else + verbose "check_rfwd done (expecting $_expected): $_message" + fi +} + +start_sshd +cp ${OBJ}/sshd_proxy ${OBJ}/sshd_proxy.bak +cp ${OBJ}/authorized_keys_${USER} ${OBJ}/authorized_keys_${USER}.bak + +# Sanity check: ensure the default config allows forwarding +for p in 1 2 ; do + check_lfwd $p Y "proto $p, default configuration" + check_rfwd $p Y "proto $p, default configuration" +done + +# Usage: all_tests yes|local|remote|no Y|N Y|N Y|N Y|N Y|N Y|N +all_tests() { + _tcpfwd=$1 + _plain_lfwd=$2 + _plain_rfwd=$3 + _nopermit_lfwd=$4 + _nopermit_rfwd=$5 + _permit_lfwd=$6 + _permit_rfwd=$7 + _badfwd=127.0.0.1:22 + _goodfwd=127.0.0.1:${PORT} + for _proto in 1 2 ; do + cp ${OBJ}/authorized_keys_${USER}.bak \ + ${OBJ}/authorized_keys_${USER} + _prefix="proto $_proto, AllowTcpForwarding=$_tcpfwd" + # No PermitOpen + ( cat ${OBJ}/sshd_proxy.bak ; + echo "AllowTcpForwarding $_tcpfwd" ) \ + > ${OBJ}/sshd_proxy + check_lfwd $_proto $_plain_lfwd "$_prefix" + check_rfwd $_proto $_plain_rfwd "$_prefix" + # PermitOpen via sshd_config that doesn't match + ( cat ${OBJ}/sshd_proxy.bak ; + echo "AllowTcpForwarding $_tcpfwd" ; + echo "PermitOpen $_badfwd" ) \ + > ${OBJ}/sshd_proxy + check_lfwd $_proto $_nopermit_lfwd "$_prefix, !PermitOpen" + check_rfwd $_proto $_nopermit_rfwd "$_prefix, !PermitOpen" + # PermitOpen via sshd_config that does match + ( cat ${OBJ}/sshd_proxy.bak ; + echo "AllowTcpForwarding $_tcpfwd" ; + echo "PermitOpen $_badfwd $_goodfwd" ) \ + > ${OBJ}/sshd_proxy + # NB. permitopen via authorized_keys should have same + # success/fail as via sshd_config + # permitopen via authorized_keys that doesn't match + sed "s/^/permitopen=\"$_badfwd\" /" \ + < ${OBJ}/authorized_keys_${USER}.bak \ + > ${OBJ}/authorized_keys_${USER} || fatal "sed 1 fail" + ( cat ${OBJ}/sshd_proxy.bak ; + echo "AllowTcpForwarding $_tcpfwd" ) \ + > ${OBJ}/sshd_proxy + check_lfwd $_proto $_nopermit_lfwd "$_prefix, !permitopen" + check_rfwd $_proto $_nopermit_rfwd "$_prefix, !permitopen" + # permitopen via authorized_keys that does match + sed "s/^/permitopen=\"$_badfwd\",permitopen=\"$_goodfwd\" /" \ + < ${OBJ}/authorized_keys_${USER}.bak \ + > ${OBJ}/authorized_keys_${USER} || fatal "sed 2 fail" + ( cat ${OBJ}/sshd_proxy.bak ; + echo "AllowTcpForwarding $_tcpfwd" ) \ + > ${OBJ}/sshd_proxy + check_lfwd $_proto $_permit_lfwd "$_prefix, permitopen" + check_rfwd $_proto $_permit_rfwd "$_prefix, permitopen" + done +} + +# no-permitopen mismatch-permitopen match-permitopen +# AllowTcpForwarding local remote local remote local remote +all_tests yes Y Y N Y Y Y +all_tests local Y N N N Y N +all_tests remote N Y N Y N Y +all_tests no N N N N N N diff --git a/regress/forwarding.sh b/regress/forwarding.sh index 6dec991a..94873f22 100644 --- a/regress/forwarding.sh +++ b/regress/forwarding.sh @@ -1,7 +1,8 @@ -# $OpenBSD: forwarding.sh,v 1.7 2010/01/11 02:53:44 dtucker Exp $ +# $OpenBSD: forwarding.sh,v 1.11 2013/06/10 21:56:43 dtucker Exp $ # Placed in the Public Domain. tid="local and remote forwarding" + DATA=/bin/ls${EXEEXT} start_sshd @@ -26,9 +27,9 @@ for p in 1 2; do trace "transfer over forwarded channels and check result" ${SSH} -$q -F $OBJ/ssh_config -p$last -o 'ConnectionAttempts=4' \ - somehost cat $DATA > $OBJ/ls.copy - test -f $OBJ/ls.copy || fail "failed copy $DATA" - cmp $DATA $OBJ/ls.copy || fail "corrupted copy of $DATA" + somehost cat ${DATA} > ${COPY} + test -f ${COPY} || fail "failed copy of ${DATA}" + cmp ${DATA} ${COPY} || fail "corrupted copy of ${DATA}" sleep 10 done @@ -75,7 +76,7 @@ for p in 1 2; do else # this one should fail ${SSH} -$p -F $OBJ/ssh_config -p ${base}01 true \ - 2>${TEST_SSH_LOGFILE} && \ + >>$TEST_REGRESS_LOGFILE 2>&1 && \ fail "local forwarding not cleared" fi sleep 10 @@ -88,7 +89,7 @@ for p in 1 2; do else # this one should fail ${SSH} -$p -F $OBJ/ssh_config -p ${base}01 true \ - 2>${TEST_SSH_LOGFILE} && \ + >>$TEST_REGRESS_LOGFILE 2>&1 && \ fail "remote forwarding not cleared" fi sleep 10 @@ -103,3 +104,18 @@ for p in 2; do fail "stdio forwarding proto $p" fi done + +echo "LocalForward ${base}01 127.0.0.1:$PORT" >> $OBJ/ssh_config +echo "RemoteForward ${base}02 127.0.0.1:${base}01" >> $OBJ/ssh_config +for p in 1 2; do + trace "config file: start forwarding, fork to background" + ${SSH} -$p -F $OBJ/ssh_config -f somehost sleep 10 + + trace "config file: transfer over forwarded channels and check result" + ${SSH} -F $OBJ/ssh_config -p${base}02 -o 'ConnectionAttempts=4' \ + somehost cat ${DATA} > ${COPY} + test -f ${COPY} || fail "failed copy of ${DATA}" + cmp ${DATA} ${COPY} || fail "corrupted copy of ${DATA}" + + wait +done diff --git a/regress/integrity.sh b/regress/integrity.sh new file mode 100644 index 00000000..852d8269 --- /dev/null +++ b/regress/integrity.sh @@ -0,0 +1,70 @@ +# $OpenBSD: integrity.sh,v 1.12 2013/11/21 03:18:51 djm Exp $ +# Placed in the Public Domain. + +tid="integrity" + +# start at byte 2900 (i.e. after kex) and corrupt at different offsets +# XXX the test hangs if we modify the low bytes of the packet length +# XXX and ssh tries to read... +tries=10 +startoffset=2900 +macs=`${SSH} -Q mac` +# The following are not MACs, but ciphers with integrated integrity. They are +# handled specially below. +macs="$macs `${SSH} -Q cipher-auth`" + +# avoid DH group exchange as the extra traffic makes it harder to get the +# offset into the stream right. +echo "KexAlgorithms diffie-hellman-group14-sha1,diffie-hellman-group1-sha1" \ + >> $OBJ/ssh_proxy + +# sshd-command for proxy (see test-exec.sh) +cmd="$SUDO sh ${SRC}/sshd-log-wrapper.sh ${SSHD} ${TEST_SSHD_LOGFILE} -i -f $OBJ/sshd_proxy" + +for m in $macs; do + trace "test $tid: mac $m" + elen=0 + epad=0 + emac=0 + ecnt=0 + skip=0 + for off in `jot $tries $startoffset`; do + skip=`expr $skip - 1` + if [ $skip -gt 0 ]; then + # avoid modifying the high bytes of the length + continue + fi + # modify output from sshd at offset $off + pxy="proxycommand=$cmd | $OBJ/modpipe -wm xor:$off:1" + if ssh -Q cipher-auth | grep "^${m}\$" >/dev/null 2>&1 ; then + macopt="-c $m" + else + macopt="-m $m -c aes128-ctr" + fi + verbose "test $tid: $m @$off" + ${SSH} $macopt -2F $OBJ/ssh_proxy -o "$pxy" \ + -oServerAliveInterval=1 -oServerAliveCountMax=30 \ + 999.999.999.999 'printf "%4096s" " "' >/dev/null + if [ $? -eq 0 ]; then + fail "ssh -m $m succeeds with bit-flip at $off" + fi + ecnt=`expr $ecnt + 1` + output=$(tail -2 $TEST_SSH_LOGFILE | egrep -v "^debug" | \ + tr -s '\r\n' '.') + case "$output" in + Bad?packet*) elen=`expr $elen + 1`; skip=3;; + Corrupted?MAC* | Decryption?integrity?check?failed*) + emac=`expr $emac + 1`; skip=0;; + padding*) epad=`expr $epad + 1`; skip=0;; + *) fail "unexpected error mac $m at $off";; + esac + done + verbose "test $tid: $ecnt errors: mac $emac padding $epad length $elen" + if [ $emac -eq 0 ]; then + fail "$m: no mac errors" + fi + expect=`expr $ecnt - $epad - $elen` + if [ $emac -ne $expect ]; then + fail "$m: expected $expect mac errors, got $emac" + fi +done diff --git a/regress/kextype.sh b/regress/kextype.sh index 79c0817b..8c2ac09d 100644 --- a/regress/kextype.sh +++ b/regress/kextype.sh @@ -1,4 +1,4 @@ -# $OpenBSD: kextype.sh,v 1.1 2010/09/22 12:26:05 djm Exp $ +# $OpenBSD: kextype.sh,v 1.4 2013/11/07 04:26:56 dtucker Exp $ # Placed in the Public Domain. tid="login with different key exchange algorithms" @@ -7,18 +7,8 @@ TIME=/usr/bin/time cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak cp $OBJ/ssh_proxy $OBJ/ssh_proxy_bak -if test "$TEST_SSH_ECC" = "yes"; then - kextypes="ecdh-sha2-nistp256 ecdh-sha2-nistp384 ecdh-sha2-nistp521" -fi -if test "$TEST_SSH_SHA256" = "yes"; then - kextypes="$kextypes diffie-hellman-group-exchange-sha256" -fi -kextypes="$kextypes diffie-hellman-group-exchange-sha1" -kextypes="$kextypes diffie-hellman-group14-sha1" -kextypes="$kextypes diffie-hellman-group1-sha1" - tries="1 2 3 4" -for k in $kextypes; do +for k in `${SSH} -Q kex`; do verbose "kex $k" for i in $tries; do ${SSH} -F $OBJ/ssh_proxy -o KexAlgorithms=$k x true diff --git a/regress/keys-command.sh b/regress/keys-command.sh new file mode 100644 index 00000000..b595a434 --- /dev/null +++ b/regress/keys-command.sh @@ -0,0 +1,39 @@ +# $OpenBSD: keys-command.sh,v 1.2 2012/12/06 06:06:54 dtucker Exp $ +# Placed in the Public Domain. + +tid="authorized keys from command" + +if test -z "$SUDO" ; then + echo "skipped (SUDO not set)" + echo "need SUDO to create file in /var/run, test won't work without" + exit 0 +fi + +# Establish a AuthorizedKeysCommand in /var/run where it will have +# acceptable directory permissions. +KEY_COMMAND="/var/run/keycommand_${LOGNAME}" +cat << _EOF | $SUDO sh -c "cat > '$KEY_COMMAND'" +#!/bin/sh +test "x\$1" != "x${LOGNAME}" && exit 1 +exec cat "$OBJ/authorized_keys_${LOGNAME}" +_EOF +$SUDO chmod 0755 "$KEY_COMMAND" + +cp $OBJ/sshd_proxy $OBJ/sshd_proxy.bak +( + grep -vi AuthorizedKeysFile $OBJ/sshd_proxy.bak + echo AuthorizedKeysFile none + echo AuthorizedKeysCommand $KEY_COMMAND + echo AuthorizedKeysCommandUser ${LOGNAME} +) > $OBJ/sshd_proxy + +if [ -x $KEY_COMMAND ]; then + ${SSH} -F $OBJ/ssh_proxy somehost true + if [ $? -ne 0 ]; then + fail "connect failed" + fi +else + echo "SKIPPED: $KEY_COMMAND not executable (/var/run mounted noexec?)" +fi + +$SUDO rm -f $KEY_COMMAND diff --git a/regress/keytype.sh b/regress/keytype.sh index cb40c686..9752acb0 100644 --- a/regress/keytype.sh +++ b/regress/keytype.sh @@ -1,4 +1,4 @@ -# $OpenBSD: keytype.sh,v 1.1 2010/09/02 16:12:55 markus Exp $ +# $OpenBSD: keytype.sh,v 1.3 2013/12/06 13:52:46 markus Exp $ # Placed in the Public Domain. tid="login with different key types" @@ -11,10 +11,16 @@ fi cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak cp $OBJ/ssh_proxy $OBJ/ssh_proxy_bak -ktypes="dsa-1024 rsa-2048 rsa-3072" -if test "$TEST_SSH_ECC" = "yes"; then - ktypes="$ktypes ecdsa-256 ecdsa-384 ecdsa-521" -fi +# Traditional and builtin key types. +ktypes="dsa-1024 rsa-2048 rsa-3072 ed25519-512" +# Types not present in all OpenSSL versions. +for i in `$SSH -Q key`; do + case "$i" in + ecdsa-sha2-nistp256) ktypes="$ktypes ecdsa-256" ;; + ecdsa-sha2-nistp384) ktypes="$ktypes ecdsa-384" ;; + ecdsa-sha2-nistp521) ktypes="$ktypes ecdsa-521" ;; + esac +done for kt in $ktypes; do rm -f $OBJ/key.$kt @@ -40,7 +46,7 @@ for ut in $ktypes; do echo IdentityFile $OBJ/key.$ut ) > $OBJ/ssh_proxy ( - echon 'localhost-with-alias,127.0.0.1,::1 ' + printf 'localhost-with-alias,127.0.0.1,::1 ' cat $OBJ/key.$ht.pub ) > $OBJ/known_hosts cat $OBJ/key.$ut.pub > $OBJ/authorized_keys_$USER diff --git a/regress/krl.sh b/regress/krl.sh new file mode 100644 index 00000000..09246371 --- /dev/null +++ b/regress/krl.sh @@ -0,0 +1,160 @@ +# $OpenBSD: krl.sh,v 1.2 2013/11/21 03:15:46 djm Exp $ +# Placed in the Public Domain. + +tid="key revocation lists" + +# If we don't support ecdsa keys then this tell will be much slower. +ECDSA=ecdsa +if test "x$TEST_SSH_ECC" != "xyes"; then + ECDSA=rsa +fi + +# Do most testing with ssh-keygen; it uses the same verification code as sshd. + +# Old keys will interfere with ssh-keygen. +rm -f $OBJ/revoked-* $OBJ/krl-* + +# Generate a CA key +$SSHKEYGEN -t $ECDSA -f $OBJ/revoked-ca -C "" -N "" > /dev/null || + fatal "$SSHKEYGEN CA failed" + +# A specification that revokes some certificates by serial numbers +# The serial pattern is chosen to ensure the KRL includes list, range and +# bitmap sections. +cat << EOF >> $OBJ/revoked-serials +serial: 1-4 +serial: 10 +serial: 15 +serial: 30 +serial: 50 +serial: 999 +# The following sum to 500-799 +serial: 500 +serial: 501 +serial: 502 +serial: 503-600 +serial: 700-797 +serial: 798 +serial: 799 +serial: 599-701 +EOF + +# A specification that revokes some certificated by key ID. +touch $OBJ/revoked-keyid +for n in 1 2 3 4 10 15 30 50 `jot 500 300` 999 1000 1001 1002; do + # Fill in by-ID revocation spec. + echo "id: revoked $n" >> $OBJ/revoked-keyid +done + +keygen() { + N=$1 + f=$OBJ/revoked-`printf "%04d" $N` + # Vary the keytype. We use mostly ECDSA since this is fastest by far. + keytype=$ECDSA + case $N in + 2 | 10 | 510 | 1001) keytype=rsa;; + 4 | 30 | 520 | 1002) keytype=dsa;; + esac + $SSHKEYGEN -t $keytype -f $f -C "" -N "" > /dev/null \ + || fatal "$SSHKEYGEN failed" + # Sign cert + $SSHKEYGEN -s $OBJ/revoked-ca -z $n -I "revoked $N" $f >/dev/null 2>&1 \ + || fatal "$SSHKEYGEN sign failed" + echo $f +} + +# Generate some keys. +verbose "$tid: generating test keys" +REVOKED_SERIALS="1 4 10 50 500 510 520 799 999" +for n in $REVOKED_SERIALS ; do + f=`keygen $n` + REVOKED_KEYS="$REVOKED_KEYS ${f}.pub" + REVOKED_CERTS="$REVOKED_CERTS ${f}-cert.pub" +done +NOTREVOKED_SERIALS="5 9 14 16 29 30 49 51 499 800 1000 1001" +NOTREVOKED="" +for n in $NOTREVOKED_SERIALS ; do + NOTREVOKED_KEYS="$NOTREVOKED_KEYS ${f}.pub" + NOTREVOKED_CERTS="$NOTREVOKED_CERTS ${f}-cert.pub" +done + +genkrls() { + OPTS=$1 +$SSHKEYGEN $OPTS -kf $OBJ/krl-empty - </dev/null \ + >/dev/null || fatal "$SSHKEYGEN KRL failed" +$SSHKEYGEN $OPTS -kf $OBJ/krl-keys $REVOKED_KEYS \ + >/dev/null || fatal "$SSHKEYGEN KRL failed" +$SSHKEYGEN $OPTS -kf $OBJ/krl-cert $REVOKED_CERTS \ + >/dev/null || fatal "$SSHKEYGEN KRL failed" +$SSHKEYGEN $OPTS -kf $OBJ/krl-all $REVOKED_KEYS $REVOKED_CERTS \ + >/dev/null || fatal "$SSHKEYGEN KRL failed" +$SSHKEYGEN $OPTS -kf $OBJ/krl-ca $OBJ/revoked-ca.pub \ + >/dev/null || fatal "$SSHKEYGEN KRL failed" +# KRLs from serial/key-id spec need the CA specified. +$SSHKEYGEN $OPTS -kf $OBJ/krl-serial $OBJ/revoked-serials \ + >/dev/null 2>&1 && fatal "$SSHKEYGEN KRL succeeded unexpectedly" +$SSHKEYGEN $OPTS -kf $OBJ/krl-keyid $OBJ/revoked-keyid \ + >/dev/null 2>&1 && fatal "$SSHKEYGEN KRL succeeded unexpectedly" +$SSHKEYGEN $OPTS -kf $OBJ/krl-serial -s $OBJ/revoked-ca $OBJ/revoked-serials \ + >/dev/null || fatal "$SSHKEYGEN KRL failed" +$SSHKEYGEN $OPTS -kf $OBJ/krl-keyid -s $OBJ/revoked-ca.pub $OBJ/revoked-keyid \ + >/dev/null || fatal "$SSHKEYGEN KRL failed" +} + +## XXX dump with trace and grep for set cert serials +## XXX test ranges near (u64)-1, etc. + +verbose "$tid: generating KRLs" +genkrls + +check_krl() { + KEY=$1 + KRL=$2 + EXPECT_REVOKED=$3 + TAG=$4 + $SSHKEYGEN -Qf $KRL $KEY >/dev/null + result=$? + if test "x$EXPECT_REVOKED" = "xyes" -a $result -eq 0 ; then + fatal "key $KEY not revoked by KRL $KRL: $TAG" + elif test "x$EXPECT_REVOKED" = "xno" -a $result -ne 0 ; then + fatal "key $KEY unexpectedly revoked by KRL $KRL: $TAG" + fi +} +test_all() { + FILES=$1 + TAG=$2 + KEYS_RESULT=$3 + ALL_RESULT=$4 + SERIAL_RESULT=$5 + KEYID_RESULT=$6 + CERTS_RESULT=$7 + CA_RESULT=$8 + verbose "$tid: checking revocations for $TAG" + for f in $FILES ; do + check_krl $f $OBJ/krl-empty no "$TAG" + check_krl $f $OBJ/krl-keys $KEYS_RESULT "$TAG" + check_krl $f $OBJ/krl-all $ALL_RESULT "$TAG" + check_krl $f $OBJ/krl-serial $SERIAL_RESULT "$TAG" + check_krl $f $OBJ/krl-keyid $KEYID_RESULT "$TAG" + check_krl $f $OBJ/krl-cert $CERTS_RESULT "$TAG" + check_krl $f $OBJ/krl-ca $CA_RESULT "$TAG" + done +} +# keys all serial keyid certs CA +test_all "$REVOKED_KEYS" "revoked keys" yes yes no no no no +test_all "$UNREVOKED_KEYS" "unrevoked keys" no no no no no no +test_all "$REVOKED_CERTS" "revoked certs" yes yes yes yes yes yes +test_all "$UNREVOKED_CERTS" "unrevoked certs" no no no no no yes + +# Check update. Results should be identical. +verbose "$tid: testing KRL update" +for f in $OBJ/krl-keys $OBJ/krl-cert $OBJ/krl-all \ + $OBJ/krl-ca $OBJ/krl-serial $OBJ/krl-keyid ; do + cp -f $OBJ/krl-empty $f + genkrls -u +done +# keys all serial keyid certs CA +test_all "$REVOKED_KEYS" "revoked keys" yes yes no no no no +test_all "$UNREVOKED_KEYS" "unrevoked keys" no no no no no no +test_all "$REVOKED_CERTS" "revoked certs" yes yes yes yes yes yes +test_all "$UNREVOKED_CERTS" "unrevoked certs" no no no no no yes diff --git a/regress/localcommand.sh b/regress/localcommand.sh index feade7a9..8a9b5697 100644 --- a/regress/localcommand.sh +++ b/regress/localcommand.sh @@ -1,4 +1,4 @@ -# $OpenBSD: localcommand.sh,v 1.1 2007/10/29 06:57:13 dtucker Exp $ +# $OpenBSD: localcommand.sh,v 1.2 2013/05/17 10:24:48 dtucker Exp $ # Placed in the Public Domain. tid="localcommand" diff --git a/regress/login-timeout.sh b/regress/login-timeout.sh index 55fbb324..d73923b9 100644 --- a/regress/login-timeout.sh +++ b/regress/login-timeout.sh @@ -1,4 +1,4 @@ -# $OpenBSD: login-timeout.sh,v 1.4 2005/02/27 23:13:36 djm Exp $ +# $OpenBSD: login-timeout.sh,v 1.5 2013/05/17 10:23:52 dtucker Exp $ # Placed in the Public Domain. tid="connect after login grace timeout" diff --git a/regress/modpipe.c b/regress/modpipe.c new file mode 100755 index 00000000..e854f9e0 --- /dev/null +++ b/regress/modpipe.c @@ -0,0 +1,175 @@ +/* + * Copyright (c) 2012 Damien Miller <djm@mindrot.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* $OpenBSD: modpipe.c,v 1.6 2013/11/21 03:16:47 djm Exp $ */ + +#include "includes.h" + +#include <sys/types.h> +#include <unistd.h> +#include <stdio.h> +#include <string.h> +#include <stdarg.h> +#include <stdlib.h> +#include <errno.h> +#include "openbsd-compat/getopt_long.c" + +static void err(int, const char *, ...) __attribute__((format(printf, 2, 3))); +static void errx(int, const char *, ...) __attribute__((format(printf, 2, 3))); + +static void +err(int r, const char *fmt, ...) +{ + va_list args; + + va_start(args, fmt); + fprintf(stderr, "%s: ", strerror(errno)); + vfprintf(stderr, fmt, args); + fputc('\n', stderr); + va_end(args); + exit(r); +} + +static void +errx(int r, const char *fmt, ...) +{ + va_list args; + + va_start(args, fmt); + vfprintf(stderr, fmt, args); + fputc('\n', stderr); + va_end(args); + exit(r); +} + +static void +usage(void) +{ + fprintf(stderr, "Usage: modpipe -w [-m modspec ...] < in > out\n"); + fprintf(stderr, "modspec is one of:\n"); + fprintf(stderr, " xor:offset:value - XOR \"value\" at \"offset\"\n"); + fprintf(stderr, " andor:offset:val1:val2 - AND \"val1\" then OR \"val2\" at \"offset\"\n"); + exit(1); +} + +#define MAX_MODIFICATIONS 256 +struct modification { + enum { MOD_XOR, MOD_AND_OR } what; + unsigned long long offset; + u_int8_t m1, m2; +}; + +static void +parse_modification(const char *s, struct modification *m) +{ + char what[16+1]; + int n, m1, m2; + + bzero(m, sizeof(*m)); + if ((n = sscanf(s, "%16[^:]%*[:]%llu%*[:]%i%*[:]%i", + what, &m->offset, &m1, &m2)) < 3) + errx(1, "Invalid modification spec \"%s\"", s); + if (strcasecmp(what, "xor") == 0) { + if (n > 3) + errx(1, "Invalid modification spec \"%s\"", s); + if (m1 < 0 || m1 > 0xff) + errx(1, "Invalid XOR modification value"); + m->what = MOD_XOR; + m->m1 = m1; + } else if (strcasecmp(what, "andor") == 0) { + if (n != 4) + errx(1, "Invalid modification spec \"%s\"", s); + if (m1 < 0 || m1 > 0xff) + errx(1, "Invalid AND modification value"); + if (m2 < 0 || m2 > 0xff) + errx(1, "Invalid OR modification value"); + m->what = MOD_AND_OR; + m->m1 = m1; + m->m2 = m2; + } else + errx(1, "Invalid modification type \"%s\"", what); +} + +int +main(int argc, char **argv) +{ + int ch; + u_char buf[8192]; + size_t total; + ssize_t r, s, o; + struct modification mods[MAX_MODIFICATIONS]; + u_int i, wflag = 0, num_mods = 0; + + while ((ch = getopt(argc, argv, "wm:")) != -1) { + switch (ch) { + case 'm': + if (num_mods >= MAX_MODIFICATIONS) + errx(1, "Too many modifications"); + parse_modification(optarg, &(mods[num_mods++])); + break; + case 'w': + wflag = 1; + break; + default: + usage(); + /* NOTREACHED */ + } + } + for (total = 0;;) { + r = s = read(STDIN_FILENO, buf, sizeof(buf)); + if (r == 0) + break; + if (r < 0) { + if (errno == EAGAIN || errno == EINTR) + continue; + err(1, "read"); + } + for (i = 0; i < num_mods; i++) { + if (mods[i].offset < total || + mods[i].offset >= total + s) + continue; + switch (mods[i].what) { + case MOD_XOR: + buf[mods[i].offset - total] ^= mods[i].m1; + break; + case MOD_AND_OR: + buf[mods[i].offset - total] &= mods[i].m1; + buf[mods[i].offset - total] |= mods[i].m2; + break; + } + } + for (o = 0; o < s; o += r) { + r = write(STDOUT_FILENO, buf, s - o); + if (r == 0) + break; + if (r < 0) { + if (errno == EAGAIN || errno == EINTR) + continue; + err(1, "write"); + } + } + total += s; + } + /* Warn if modifications not reached in input stream */ + r = 0; + for (i = 0; wflag && i < num_mods; i++) { + if (mods[i].offset < total) + continue; + r = 1; + fprintf(stderr, "modpipe: warning - mod %u not reached\n", i); + } + return r; +} diff --git a/regress/multiplex.sh b/regress/multiplex.sh index b94cdf02..3e697e69 100644 --- a/regress/multiplex.sh +++ b/regress/multiplex.sh @@ -1,4 +1,4 @@ -# $OpenBSD: multiplex.sh,v 1.12 2009/05/05 07:51:36 dtucker Exp $ +# $OpenBSD: multiplex.sh,v 1.21 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. CTL=/tmp/openssh.regress.ctl-sock.$$ @@ -10,18 +10,30 @@ if config_defined DISABLE_FD_PASSING ; then exit 0 fi -DATA=/bin/ls${EXEEXT} -COPY=$OBJ/ls.copy -LOG=$TEST_SSH_LOGFILE +P=3301 # test port + +wait_for_mux_master_ready() +{ + for i in 1 2 3 4 5; do + ${SSH} -F $OBJ/ssh_config -S $CTL -Ocheck otherhost \ + >/dev/null 2>&1 && return 0 + sleep $i + done + fatal "mux master never becomes ready" +} start_sshd -trace "start master, fork to background" -${SSH} -Nn2 -MS$CTL -F $OBJ/ssh_config -oSendEnv="_XXX_TEST" somehost & -MASTER_PID=$! +start_mux_master() +{ + trace "start master, fork to background" + ${SSH} -Nn2 -MS$CTL -F $OBJ/ssh_config -oSendEnv="_XXX_TEST" somehost \ + -E $TEST_REGRESS_LOGFILE 2>&1 & + MASTER_PID=$! + wait_for_mux_master_ready +} -# Wait for master to start and authenticate -sleep 5 +start_mux_master verbose "test $tid: envpass" trace "env passing over multiplexed connection" @@ -48,13 +60,13 @@ cmp ${DATA} ${COPY} || fail "ssh -S ctl: corrupted copy of ${DATA}" rm -f ${COPY} trace "sftp transfer over multiplexed connection and check result" echo "get ${DATA} ${COPY}" | \ - ${SFTP} -S ${SSH} -F $OBJ/ssh_config -oControlPath=$CTL otherhost >$LOG 2>&1 + ${SFTP} -S ${SSH} -F $OBJ/ssh_config -oControlPath=$CTL otherhost >>$TEST_REGRESS_LOGFILE 2>&1 test -f ${COPY} || fail "sftp: failed copy ${DATA}" cmp ${DATA} ${COPY} || fail "sftp: corrupted copy of ${DATA}" rm -f ${COPY} trace "scp transfer over multiplexed connection and check result" -${SCP} -S ${SSH} -F $OBJ/ssh_config -oControlPath=$CTL otherhost:${DATA} ${COPY} >$LOG 2>&1 +${SCP} -S ${SSH} -F $OBJ/ssh_config -oControlPath=$CTL otherhost:${DATA} ${COPY} >>$TEST_REGRESS_LOGFILE 2>&1 test -f ${COPY} || fail "scp: failed copy ${DATA}" cmp ${DATA} ${COPY} || fail "scp: corrupted copy of ${DATA}" @@ -79,13 +91,53 @@ for s in 0 1 4 5 44; do fi done -trace "test check command" -${SSH} -F $OBJ/ssh_config -S $CTL -Ocheck otherhost || fail "check command failed" - -trace "test exit command" -${SSH} -F $OBJ/ssh_config -S $CTL -Oexit otherhost || fail "send exit command failed" +verbose "test $tid: cmd check" +${SSH} -F $OBJ/ssh_config -S $CTL -Ocheck otherhost >>$TEST_REGRESS_LOGFILE 2>&1 \ + || fail "check command failed" + +verbose "test $tid: cmd forward local" +${SSH} -F $OBJ/ssh_config -S $CTL -Oforward -L $P:localhost:$PORT otherhost \ + || fail "request local forward failed" +${SSH} -F $OBJ/ssh_config -p$P otherhost true \ + || fail "connect to local forward port failed" +${SSH} -F $OBJ/ssh_config -S $CTL -Ocancel -L $P:localhost:$PORT otherhost \ + || fail "cancel local forward failed" +${SSH} -F $OBJ/ssh_config -p$P otherhost true \ + && fail "local forward port still listening" + +verbose "test $tid: cmd forward remote" +${SSH} -F $OBJ/ssh_config -S $CTL -Oforward -R $P:localhost:$PORT otherhost \ + || fail "request remote forward failed" +${SSH} -F $OBJ/ssh_config -p$P otherhost true \ + || fail "connect to remote forwarded port failed" +${SSH} -F $OBJ/ssh_config -S $CTL -Ocancel -R $P:localhost:$PORT otherhost \ + || fail "cancel remote forward failed" +${SSH} -F $OBJ/ssh_config -p$P otherhost true \ + && fail "remote forward port still listening" + +verbose "test $tid: cmd exit" +${SSH} -F $OBJ/ssh_config -S $CTL -Oexit otherhost >>$TEST_REGRESS_LOGFILE 2>&1 \ + || fail "send exit command failed" # Wait for master to exit -sleep 2 - -kill -0 $MASTER_PID >/dev/null 2>&1 && fail "exit command failed" +wait $MASTER_PID +kill -0 $MASTER_PID >/dev/null 2>&1 && fail "exit command failed" + +# Restart master and test -O stop command with master using -N +verbose "test $tid: cmd stop" +trace "restart master, fork to background" +start_mux_master + +# start a long-running command then immediately request a stop +${SSH} -F $OBJ/ssh_config -S $CTL otherhost "sleep 10; exit 0" \ + >>$TEST_REGRESS_LOGFILE 2>&1 & +SLEEP_PID=$! +${SSH} -F $OBJ/ssh_config -S $CTL -Ostop otherhost >>$TEST_REGRESS_LOGFILE 2>&1 \ + || fail "send stop command failed" + +# wait until both long-running command and master have exited. +wait $SLEEP_PID +[ $! != 0 ] || fail "waiting for concurrent command" +wait $MASTER_PID +[ $! != 0 ] || fail "waiting for master stop" +kill -0 $MASTER_PID >/dev/null 2>&1 && fail "stop command failed" diff --git a/regress/portnum.sh b/regress/portnum.sh index 1de0680f..c56b869a 100644 --- a/regress/portnum.sh +++ b/regress/portnum.sh @@ -1,4 +1,4 @@ -# $OpenBSD: portnum.sh,v 1.1 2009/08/13 00:57:17 djm Exp $ +# $OpenBSD: portnum.sh,v 1.2 2013/05/17 10:34:30 dtucker Exp $ # Placed in the Public Domain. tid="port number parsing" diff --git a/regress/proto-version.sh b/regress/proto-version.sh index 1651a69e..b876dd7e 100644 --- a/regress/proto-version.sh +++ b/regress/proto-version.sh @@ -1,4 +1,4 @@ -# $OpenBSD: proto-version.sh,v 1.3 2002/03/15 13:08:56 markus Exp $ +# $OpenBSD: proto-version.sh,v 1.4 2013/05/17 00:37:40 dtucker Exp $ # Placed in the Public Domain. tid="sshd version with different protocol combinations" @@ -8,7 +8,7 @@ check_version () { version=$1 expect=$2 - banner=`echon | ${SSHD} -o "Protocol=${version}" -i -f ${OBJ}/sshd_proxy` + banner=`printf '' | ${SSHD} -o "Protocol=${version}" -i -f ${OBJ}/sshd_proxy` case ${banner} in SSH-1.99-*) proto=199 diff --git a/regress/proxy-connect.sh b/regress/proxy-connect.sh index 6a36b251..76e602dd 100644 --- a/regress/proxy-connect.sh +++ b/regress/proxy-connect.sh @@ -1,8 +1,9 @@ -# $OpenBSD: proxy-connect.sh,v 1.5 2002/12/09 15:28:46 markus Exp $ +# $OpenBSD: proxy-connect.sh,v 1.6 2013/03/07 00:20:34 djm Exp $ # Placed in the Public Domain. tid="proxy connect" +verbose "plain username" for p in 1 2; do ${SSH} -$p -F $OBJ/ssh_proxy 999.999.999.999 true if [ $? -ne 0 ]; then @@ -16,3 +17,10 @@ for p in 1 2; do fail "bad SSH_CONNECTION" fi done + +verbose "username with style" +for p in 1 2; do + ${SSH} -$p -F $OBJ/ssh_proxy ${USER}:style@999.999.999.999 true || \ + fail "ssh proxyconnect protocol $p failed" +done + diff --git a/regress/putty-ciphers.sh b/regress/putty-ciphers.sh index 928ea60d..724a98cc 100644 --- a/regress/putty-ciphers.sh +++ b/regress/putty-ciphers.sh @@ -1,11 +1,8 @@ -# $OpenBSD: putty-ciphers.sh,v 1.3 2008/11/10 02:06:35 djm Exp $ +# $OpenBSD: putty-ciphers.sh,v 1.4 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="putty ciphers" -DATA=/bin/ls -COPY=${OBJ}/copy - if test "x$REGRESS_INTEROP_PUTTY" != "xyes" ; then echo "putty interop tests not enabled" exit 0 diff --git a/regress/putty-kex.sh b/regress/putty-kex.sh index 293885a8..1844d659 100644 --- a/regress/putty-kex.sh +++ b/regress/putty-kex.sh @@ -1,11 +1,8 @@ -# $OpenBSD: putty-kex.sh,v 1.2 2008/06/30 10:31:11 djm Exp $ +# $OpenBSD: putty-kex.sh,v 1.3 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="putty KEX" -DATA=/bin/ls -COPY=${OBJ}/copy - if test "x$REGRESS_INTEROP_PUTTY" != "xyes" ; then echo "putty interop tests not enabled" exit 0 diff --git a/regress/putty-transfer.sh b/regress/putty-transfer.sh index 9e1e1550..aec0e04e 100644 --- a/regress/putty-transfer.sh +++ b/regress/putty-transfer.sh @@ -1,11 +1,8 @@ -# $OpenBSD: putty-transfer.sh,v 1.2 2008/06/30 10:31:11 djm Exp $ +# $OpenBSD: putty-transfer.sh,v 1.3 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="putty transfer data" -DATA=/bin/ls -COPY=${OBJ}/copy - if test "x$REGRESS_INTEROP_PUTTY" != "xyes" ; then echo "putty interop tests not enabled" exit 0 diff --git a/regress/reexec.sh b/regress/reexec.sh index 6edfc318..433573f0 100644 --- a/regress/reexec.sh +++ b/regress/reexec.sh @@ -1,12 +1,10 @@ -# $OpenBSD: reexec.sh,v 1.5 2004/10/08 02:01:50 djm Exp $ +# $OpenBSD: reexec.sh,v 1.7 2013/05/17 10:23:52 dtucker Exp $ # Placed in the Public Domain. tid="reexec tests" -DATA=/bin/ls${EXEEXT} -COPY=${OBJ}/copy -SSHD_ORIG=$SSHD${EXEEXT} -SSHD_COPY=$OBJ/sshd${EXEEXT} +SSHD_ORIG=$SSHD +SSHD_COPY=$OBJ/sshd # Start a sshd and then delete it start_sshd_copy () @@ -46,6 +44,9 @@ rm -f $PIDFILE cp $OBJ/sshd_config.orig $OBJ/sshd_config +# cygwin can't fork a deleted binary +if [ "$os" != "cygwin" ]; then + verbose "test reexec fallback" start_sshd_copy @@ -69,4 +70,4 @@ copy_tests $SUDO kill `$SUDO cat $PIDFILE` rm -f $PIDFILE - +fi diff --git a/regress/rekey.sh b/regress/rekey.sh index 3c5f266f..cf9401ea 100644 --- a/regress/rekey.sh +++ b/regress/rekey.sh @@ -1,27 +1,73 @@ -# $OpenBSD: rekey.sh,v 1.1 2003/03/28 13:58:28 markus Exp $ +# $OpenBSD: rekey.sh,v 1.14 2013/11/21 03:18:51 djm Exp $ # Placed in the Public Domain. -tid="rekey during transfer data" +tid="rekey" -DATA=${OBJ}/data -COPY=${OBJ}/copy -LOG=${OBJ}/log +LOG=${TEST_SSH_LOGFILE} -rm -f ${COPY} ${LOG} ${DATA} -touch ${DATA} -dd if=/bin/ls${EXEEXT} of=${DATA} bs=1k seek=511 count=1 > /dev/null 2>&1 +rm -f ${LOG} + +# Test rekeying based on data volume only. +# Arguments will be passed to ssh. +ssh_data_rekeying() +{ + rm -f ${COPY} ${LOG} + ${SSH} <${DATA} -oCompression=no $@ -v -F $OBJ/ssh_proxy somehost \ + "cat > ${COPY}" + if [ $? -ne 0 ]; then + fail "ssh failed ($@)" + fi + cmp ${DATA} ${COPY} || fail "corrupted copy ($@)" + n=`grep 'NEWKEYS sent' ${LOG} | wc -l` + n=`expr $n - 1` + trace "$n rekeying(s)" + if [ $n -lt 1 ]; then + fail "no rekeying occured ($@)" + fi +} + +increase_datafile_size 300 + +opts="" +for i in `${SSH} -Q kex`; do + opts="$opts KexAlgorithms=$i" +done +for i in `${SSH} -Q cipher`; do + opts="$opts Ciphers=$i" +done +for i in `${SSH} -Q mac`; do + opts="$opts MACs=$i" +done + +for opt in $opts; do + verbose "client rekey $opt" + ssh_data_rekeying -oRekeyLimit=256k -o$opt +done + +# AEAD ciphers are magical so test with all KexAlgorithms +if ${SSH} -Q cipher-auth | grep '^.*$' >/dev/null 2>&1 ; then + for c in `${SSH} -Q cipher-auth`; do + for kex in `${SSH} -Q kex`; do + verbose "client rekey $c $kex" + ssh_data_rekeying -oRekeyLimit=256k -oCiphers=$c -oKexAlgorithms=$kex + done + done +fi for s in 16 1k 128k 256k; do - trace "rekeylimit ${s}" - rm -f ${COPY} - cat $DATA | \ - ${SSH} -oCompression=no -oRekeyLimit=$s \ - -v -F $OBJ/ssh_proxy somehost "cat > ${COPY}" \ - 2> ${LOG} + verbose "client rekeylimit ${s}" + ssh_data_rekeying -oCompression=no -oRekeyLimit=$s +done + +for s in 5 10; do + verbose "client rekeylimit default ${s}" + rm -f ${COPY} ${LOG} + ${SSH} < ${DATA} -oCompression=no -oRekeyLimit="default $s" -F \ + $OBJ/ssh_proxy somehost "cat >${COPY};sleep $s;sleep 3" if [ $? -ne 0 ]; then fail "ssh failed" fi - cmp $DATA ${COPY} || fail "corrupted copy" + cmp ${DATA} ${COPY} || fail "corrupted copy" n=`grep 'NEWKEYS sent' ${LOG} | wc -l` n=`expr $n - 1` trace "$n rekeying(s)" @@ -29,4 +75,68 @@ for s in 16 1k 128k 256k; do fail "no rekeying occured" fi done -rm -f ${COPY} ${LOG} ${DATA} + +for s in 5 10; do + verbose "client rekeylimit default ${s} no data" + rm -f ${COPY} ${LOG} + ${SSH} -oCompression=no -oRekeyLimit="default $s" -F \ + $OBJ/ssh_proxy somehost "sleep $s;sleep 3" + if [ $? -ne 0 ]; then + fail "ssh failed" + fi + n=`grep 'NEWKEYS sent' ${LOG} | wc -l` + n=`expr $n - 1` + trace "$n rekeying(s)" + if [ $n -lt 1 ]; then + fail "no rekeying occured" + fi +done + +echo "rekeylimit default 5" >>$OBJ/sshd_proxy +for s in 5 10; do + verbose "server rekeylimit default ${s} no data" + rm -f ${COPY} ${LOG} + ${SSH} -oCompression=no -F $OBJ/ssh_proxy somehost "sleep $s;sleep 3" + if [ $? -ne 0 ]; then + fail "ssh failed" + fi + n=`grep 'NEWKEYS sent' ${LOG} | wc -l` + n=`expr $n - 1` + trace "$n rekeying(s)" + if [ $n -lt 1 ]; then + fail "no rekeying occured" + fi +done + +verbose "rekeylimit parsing" +for size in 16 1k 1K 1m 1M 1g 1G; do + for time in 1 1m 1M 1h 1H 1d 1D 1w 1W; do + case $size in + 16) bytes=16 ;; + 1k|1K) bytes=1024 ;; + 1m|1M) bytes=1048576 ;; + 1g|1G) bytes=1073741824 ;; + esac + case $time in + 1) seconds=1 ;; + 1m|1M) seconds=60 ;; + 1h|1H) seconds=3600 ;; + 1d|1D) seconds=86400 ;; + 1w|1W) seconds=604800 ;; + esac + + b=`$SUDO ${SSHD} -T -o "rekeylimit $size $time" -f $OBJ/sshd_proxy | \ + awk '/rekeylimit/{print $2}'` + s=`$SUDO ${SSHD} -T -o "rekeylimit $size $time" -f $OBJ/sshd_proxy | \ + awk '/rekeylimit/{print $3}'` + + if [ "$bytes" != "$b" ]; then + fatal "rekeylimit size: expected $bytes bytes got $b" + fi + if [ "$seconds" != "$s" ]; then + fatal "rekeylimit time: expected $time seconds got $s" + fi + done +done + +rm -f ${COPY} ${DATA} diff --git a/regress/runtests.sh b/regress/runtests.sh deleted file mode 100755 index 9808eb8a..00000000 --- a/regress/runtests.sh +++ /dev/null @@ -1,13 +0,0 @@ -#!/bin/sh - -TEST_SSH_SSH=../ssh -TEST_SSH_SSHD=../sshd -TEST_SSH_SSHAGENT=../ssh-agent -TEST_SSH_SSHADD=../ssh-add -TEST_SSH_SSHKEYGEN=../ssh-keygen -TEST_SSH_SSHKEYSCAN=../ssh-keyscan -TEST_SSH_SFTP=../sftp -TEST_SSH_SFTPSERVER=../sftp-server - -pmake - diff --git a/regress/scp-ssh-wrapper.sh b/regress/scp-ssh-wrapper.sh index d1005a99..c63bc2bc 100644 --- a/regress/scp-ssh-wrapper.sh +++ b/regress/scp-ssh-wrapper.sh @@ -17,7 +17,7 @@ printname () { } # Discard all but last argument. We use arg later. -while test "$1" != ""; do +while test "x$1" != "x"; do arg="$1" shift done @@ -52,6 +52,8 @@ badserver_4) echo "X" ;; *) - exec $arg + set -- $arg + shift + exec $SCP "$@" ;; esac diff --git a/regress/scp.sh b/regress/scp.sh index c5d412dd..c2da2a86 100644 --- a/regress/scp.sh +++ b/regress/scp.sh @@ -1,4 +1,4 @@ -# $OpenBSD: scp.sh,v 1.7 2006/01/31 10:36:33 djm Exp $ +# $OpenBSD: scp.sh,v 1.9 2013/05/17 10:35:43 dtucker Exp $ # Placed in the Public Domain. tid="scp" @@ -12,8 +12,6 @@ else DIFFOPT="-r" fi -DATA=/bin/ls${EXEEXT} -COPY=${OBJ}/copy COPY2=${OBJ}/copy2 DIR=${COPY}.dd DIR2=${COPY}.dd2 @@ -22,6 +20,7 @@ SRC=`dirname ${SCRIPT}` cp ${SRC}/scp-ssh-wrapper.sh ${OBJ}/scp-ssh-wrapper.scp chmod 755 ${OBJ}/scp-ssh-wrapper.scp scpopts="-q -S ${OBJ}/scp-ssh-wrapper.scp" +export SCP # used in scp-ssh-wrapper.scp scpclean() { rm -rf ${COPY} ${COPY2} ${DIR} ${DIR2} diff --git a/regress/setuid-allowed.c b/regress/setuid-allowed.c new file mode 100644 index 00000000..37b7dc8a --- /dev/null +++ b/regress/setuid-allowed.c @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2013 Damien Miller <djm@mindrot.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* $OpenBSD$ */ + +#include "includes.h" + +#include <sys/types.h> +#ifdef HAVE_SYS_STATVFS_H +# include <sys/statvfs.h> +#endif +#include <stdio.h> +#include <errno.h> + +void +usage(void) +{ + fprintf(stderr, "check-setuid [path]\n"); + exit(1); +} + +int +main(int argc, char **argv) +{ + const char *path = "."; + struct statvfs sb; + + if (argc > 2) + usage(); + else if (argc == 2) + path = argv[1]; + + if (statvfs(path, &sb) != 0) { + /* Don't return an error if the host doesn't support statvfs */ + if (errno == ENOSYS) + return 0; + fprintf(stderr, "statvfs for \"%s\" failed: %s\n", + path, strerror(errno)); + } + return (sb.f_flag & ST_NOSUID) ? 1 : 0; +} + + diff --git a/regress/sftp-badcmds.sh b/regress/sftp-badcmds.sh index 08009f26..7f85c4f2 100644 --- a/regress/sftp-badcmds.sh +++ b/regress/sftp-badcmds.sh @@ -1,12 +1,10 @@ -# $OpenBSD: sftp-badcmds.sh,v 1.4 2009/08/13 01:11:55 djm Exp $ +# $OpenBSD: sftp-badcmds.sh,v 1.6 2013/05/17 10:26:26 dtucker Exp $ # Placed in the Public Domain. tid="sftp invalid commands" -DATA=/bin/ls${EXEEXT} DATA2=/bin/sh${EXEEXT} NONEXIST=/NONEXIST.$$ -COPY=${OBJ}/copy GLOBFILES=`(cd /bin;echo l*)` rm -rf ${COPY} ${COPY}.1 ${COPY}.2 ${COPY}.dd diff --git a/regress/sftp-batch.sh b/regress/sftp-batch.sh index a51ef078..41011549 100644 --- a/regress/sftp-batch.sh +++ b/regress/sftp-batch.sh @@ -1,10 +1,8 @@ -# $OpenBSD: sftp-batch.sh,v 1.4 2009/08/13 01:11:55 djm Exp $ +# $OpenBSD: sftp-batch.sh,v 1.5 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="sftp batchfile" -DATA=/bin/ls${EXEEXT} -COPY=${OBJ}/copy BATCH=${OBJ}/sftp.bb rm -rf ${COPY} ${COPY}.1 ${COPY}.2 ${COPY}.dd ${BATCH}.* diff --git a/regress/sftp-chroot.sh b/regress/sftp-chroot.sh new file mode 100644 index 00000000..03b9bc6d --- /dev/null +++ b/regress/sftp-chroot.sh @@ -0,0 +1,25 @@ +# $OpenBSD: sftp-chroot.sh,v 1.2 2013/05/17 04:29:14 dtucker Exp $ +# Placed in the Public Domain. + +tid="sftp in chroot" + +CHROOT=/var/run +FILENAME=testdata_${USER} +PRIVDATA=${CHROOT}/${FILENAME} + +if [ -z "$SUDO" ]; then + echo "skipped: need SUDO to create file in /var/run, test won't work without" + exit 0 +fi + +$SUDO sh -c "echo mekmitastdigoat > $PRIVDATA" || \ + fatal "create $PRIVDATA failed" + +start_sshd -oChrootDirectory=$CHROOT -oForceCommand="internal-sftp -d /" + +verbose "test $tid: get" +${SFTP} -qS "$SSH" -F $OBJ/ssh_config host:/${FILENAME} $COPY || \ + fatal "Fetch ${FILENAME} failed" +cmp $PRIVDATA $COPY || fail "$PRIVDATA $COPY differ" + +$SUDO rm $PRIVDATA diff --git a/regress/sftp-cmds.sh b/regress/sftp-cmds.sh index 1c67b647..aad7fcac 100644 --- a/regress/sftp-cmds.sh +++ b/regress/sftp-cmds.sh @@ -1,4 +1,4 @@ -# $OpenBSD: sftp-cmds.sh,v 1.11 2010/12/04 00:21:19 djm Exp $ +# $OpenBSD: sftp-cmds.sh,v 1.14 2013/06/21 02:26:26 djm Exp $ # Placed in the Public Domain. # XXX - TODO: @@ -7,8 +7,6 @@ tid="sftp commands" -DATA=/bin/ls${EXEEXT} -COPY=${OBJ}/copy # test that these files are readable! for i in `(cd /bin;echo l*)` do @@ -17,20 +15,6 @@ do fi done -if have_prog uname -then - case `uname` in - CYGWIN*) - os=cygwin - ;; - *) - os=`uname` - ;; - esac -else - os="unknown" -fi - # Path with embedded quote QUOTECOPY=${COPY}".\"blah\"" QUOTECOPY_ARG=${COPY}'.\"blah\"' @@ -40,7 +24,7 @@ SPACECOPY_ARG="${COPY}\ this\ has\ spaces.txt" # File with glob metacharacters GLOBMETACOPY="${COPY} [metachar].txt" -rm -rf ${COPY} ${COPY}.1 ${COPY}.2 ${COPY}.dd ${COPY}.dd2 ${BATCH}.* +rm -rf ${COPY} ${COPY}.1 ${COPY}.2 ${COPY}.dd ${COPY}.dd2 mkdir ${COPY}.dd verbose "$tid: lls" @@ -122,7 +106,7 @@ rm -f ${COPY}.dd/* verbose "$tid: get to directory" echo "get $DATA ${COPY}.dd" | ${SFTP} -D ${SFTPSERVER} >/dev/null 2>&1 \ || fail "get failed" -cmp $DATA ${COPY}.dd/`basename $DATA` || fail "corrupted copy after get" +cmp $DATA ${COPY}.dd/$DATANAME || fail "corrupted copy after get" rm -f ${COPY}.dd/* verbose "$tid: glob get to directory" @@ -136,7 +120,7 @@ rm -f ${COPY}.dd/* verbose "$tid: get to local dir" (echo "lcd ${COPY}.dd"; echo "get $DATA" ) | ${SFTP} -D ${SFTPSERVER} >/dev/null 2>&1 \ || fail "get failed" -cmp $DATA ${COPY}.dd/`basename $DATA` || fail "corrupted copy after get" +cmp $DATA ${COPY}.dd/$DATANAME || fail "corrupted copy after get" rm -f ${COPY}.dd/* verbose "$tid: glob get to local dir" @@ -170,7 +154,7 @@ rm -f ${COPY}.dd/* verbose "$tid: put to directory" echo "put $DATA ${COPY}.dd" | ${SFTP} -D ${SFTPSERVER} >/dev/null 2>&1 \ || fail "put failed" -cmp $DATA ${COPY}.dd/`basename $DATA` || fail "corrupted copy after put" +cmp $DATA ${COPY}.dd/$DATANAME || fail "corrupted copy after put" rm -f ${COPY}.dd/* verbose "$tid: glob put to directory" @@ -184,7 +168,7 @@ rm -f ${COPY}.dd/* verbose "$tid: put to local dir" (echo "cd ${COPY}.dd"; echo "put $DATA") | ${SFTP} -D ${SFTPSERVER} >/dev/null 2>&1 \ || fail "put failed" -cmp $DATA ${COPY}.dd/`basename $DATA` || fail "corrupted copy after put" +cmp $DATA ${COPY}.dd/$DATANAME || fail "corrupted copy after put" rm -f ${COPY}.dd/* verbose "$tid: glob put to local dir" @@ -242,7 +226,7 @@ verbose "$tid: lchdir" echo "lchdir ${COPY}.dd" | ${SFTP} -D ${SFTPSERVER} >/dev/null 2>&1 \ || fail "lchdir failed" -rm -rf ${COPY} ${COPY}.1 ${COPY}.2 ${COPY}.dd ${COPY}.dd2 ${BATCH}.* +rm -rf ${COPY} ${COPY}.1 ${COPY}.2 ${COPY}.dd ${COPY}.dd2 rm -rf ${QUOTECOPY} "$SPACECOPY" "$GLOBMETACOPY" diff --git a/regress/sftp-perm.sh b/regress/sftp-perm.sh new file mode 100644 index 00000000..304ca0ac --- /dev/null +++ b/regress/sftp-perm.sh @@ -0,0 +1,269 @@ +# $OpenBSD: sftp-perm.sh,v 1.2 2013/10/17 22:00:18 djm Exp $ +# Placed in the Public Domain. + +tid="sftp permissions" + +SERVER_LOG=${OBJ}/sftp-server.log +CLIENT_LOG=${OBJ}/sftp.log +TEST_SFTP_SERVER=${OBJ}/sftp-server.sh + +prepare_server() { + printf "#!/bin/sh\nexec $SFTPSERVER -el debug3 $* 2>$SERVER_LOG\n" \ + > $TEST_SFTP_SERVER + chmod a+x $TEST_SFTP_SERVER +} + +run_client() { + echo "$@" | ${SFTP} -D ${TEST_SFTP_SERVER} -vvvb - >$CLIENT_LOG 2>&1 +} + +prepare_files() { + _prep="$1" + rm -f ${COPY} ${COPY}.1 + test -d ${COPY}.dd && { rmdir ${COPY}.dd || fatal "rmdir ${COPY}.dd"; } + test -z "$_prep" && return + sh -c "$_prep" || fail "preparation failed: \"$_prep\"" +} + +postcondition() { + _title="$1" + _check="$2" + test -z "$_check" && return + ${TEST_SHELL} -c "$_check" || fail "postcondition check failed: $_title" +} + +ro_test() { + _desc=$1 + _cmd="$2" + _prep="$3" + _expect_success_post="$4" + _expect_fail_post="$5" + verbose "$tid: read-only $_desc" + # Plain (no options, mostly to test that _cmd is good) + prepare_files "$_prep" + prepare_server + run_client "$_cmd" || fail "plain $_desc failed" + postcondition "$_desc no-readonly" "$_expect_success_post" + # Read-only enabled + prepare_files "$_prep" + prepare_server -R + run_client "$_cmd" && fail "read-only $_desc succeeded" + postcondition "$_desc readonly" "$_expect_fail_post" +} + +perm_test() { + _op=$1 + _whitelist_ops=$2 + _cmd="$3" + _prep="$4" + _expect_success_post="$5" + _expect_fail_post="$6" + verbose "$tid: explicit $_op" + # Plain (no options, mostly to test that _cmd is good) + prepare_files "$_prep" + prepare_server + run_client "$_cmd" || fail "plain $_op failed" + postcondition "$_op no white/blacklists" "$_expect_success_post" + # Whitelist + prepare_files "$_prep" + prepare_server -p $_op,$_whitelist_ops + run_client "$_cmd" || fail "whitelisted $_op failed" + postcondition "$_op whitelisted" "$_expect_success_post" + # Blacklist + prepare_files "$_prep" + prepare_server -P $_op + run_client "$_cmd" && fail "blacklisted $_op succeeded" + postcondition "$_op blacklisted" "$_expect_fail_post" + # Whitelist with op missing. + prepare_files "$_prep" + prepare_server -p $_whitelist_ops + run_client "$_cmd" && fail "no whitelist $_op succeeded" + postcondition "$_op not in whitelist" "$_expect_fail_post" +} + +ro_test \ + "upload" \ + "put $DATA $COPY" \ + "" \ + "cmp $DATA $COPY" \ + "test ! -f $COPY" + +ro_test \ + "setstat" \ + "chmod 0700 $COPY" \ + "touch $COPY; chmod 0400 $COPY" \ + "test -x $COPY" \ + "test ! -x $COPY" + +ro_test \ + "rm" \ + "rm $COPY" \ + "touch $COPY" \ + "test ! -f $COPY" \ + "test -f $COPY" + +ro_test \ + "mkdir" \ + "mkdir ${COPY}.dd" \ + "" \ + "test -d ${COPY}.dd" \ + "test ! -d ${COPY}.dd" + +ro_test \ + "rmdir" \ + "rmdir ${COPY}.dd" \ + "mkdir ${COPY}.dd" \ + "test ! -d ${COPY}.dd" \ + "test -d ${COPY}.dd" + +ro_test \ + "posix-rename" \ + "rename $COPY ${COPY}.1" \ + "touch $COPY" \ + "test -f ${COPY}.1 -a ! -f $COPY" \ + "test -f $COPY -a ! -f ${COPY}.1" + +ro_test \ + "oldrename" \ + "rename -l $COPY ${COPY}.1" \ + "touch $COPY" \ + "test -f ${COPY}.1 -a ! -f $COPY" \ + "test -f $COPY -a ! -f ${COPY}.1" + +ro_test \ + "symlink" \ + "ln -s $COPY ${COPY}.1" \ + "touch $COPY" \ + "test -h ${COPY}.1" \ + "test ! -h ${COPY}.1" + +ro_test \ + "hardlink" \ + "ln $COPY ${COPY}.1" \ + "touch $COPY" \ + "test -f ${COPY}.1" \ + "test ! -f ${COPY}.1" + +# Test explicit permissions + +perm_test \ + "open" \ + "realpath,stat,lstat,read,close" \ + "get $DATA $COPY" \ + "" \ + "cmp $DATA $COPY" \ + "! cmp $DATA $COPY 2>/dev/null" + +perm_test \ + "read" \ + "realpath,stat,lstat,open,close" \ + "get $DATA $COPY" \ + "" \ + "cmp $DATA $COPY" \ + "! cmp $DATA $COPY 2>/dev/null" + +perm_test \ + "write" \ + "realpath,stat,lstat,open,close" \ + "put $DATA $COPY" \ + "" \ + "cmp $DATA $COPY" \ + "! cmp $DATA $COPY 2>/dev/null" + +perm_test \ + "lstat" \ + "realpath,stat,open,read,close" \ + "get $DATA $COPY" \ + "" \ + "cmp $DATA $COPY" \ + "! cmp $DATA $COPY 2>/dev/null" + +perm_test \ + "opendir" \ + "realpath,readdir,stat,lstat" \ + "ls -ln $OBJ" + +perm_test \ + "readdir" \ + "realpath,opendir,stat,lstat" \ + "ls -ln $OBJ" + +perm_test \ + "setstat" \ + "realpath,stat,lstat" \ + "chmod 0700 $COPY" \ + "touch $COPY; chmod 0400 $COPY" \ + "test -x $COPY" \ + "test ! -x $COPY" + +perm_test \ + "remove" \ + "realpath,stat,lstat" \ + "rm $COPY" \ + "touch $COPY" \ + "test ! -f $COPY" \ + "test -f $COPY" + +perm_test \ + "mkdir" \ + "realpath,stat,lstat" \ + "mkdir ${COPY}.dd" \ + "" \ + "test -d ${COPY}.dd" \ + "test ! -d ${COPY}.dd" + +perm_test \ + "rmdir" \ + "realpath,stat,lstat" \ + "rmdir ${COPY}.dd" \ + "mkdir ${COPY}.dd" \ + "test ! -d ${COPY}.dd" \ + "test -d ${COPY}.dd" + +perm_test \ + "posix-rename" \ + "realpath,stat,lstat" \ + "rename $COPY ${COPY}.1" \ + "touch $COPY" \ + "test -f ${COPY}.1 -a ! -f $COPY" \ + "test -f $COPY -a ! -f ${COPY}.1" + +perm_test \ + "rename" \ + "realpath,stat,lstat" \ + "rename -l $COPY ${COPY}.1" \ + "touch $COPY" \ + "test -f ${COPY}.1 -a ! -f $COPY" \ + "test -f $COPY -a ! -f ${COPY}.1" + +perm_test \ + "symlink" \ + "realpath,stat,lstat" \ + "ln -s $COPY ${COPY}.1" \ + "touch $COPY" \ + "test -h ${COPY}.1" \ + "test ! -h ${COPY}.1" + +perm_test \ + "hardlink" \ + "realpath,stat,lstat" \ + "ln $COPY ${COPY}.1" \ + "touch $COPY" \ + "test -f ${COPY}.1" \ + "test ! -f ${COPY}.1" + +perm_test \ + "statvfs" \ + "realpath,stat,lstat" \ + "df /" + +# XXX need good tests for: +# fstat +# fsetstat +# realpath +# stat +# readlink +# fstatvfs + +rm -rf ${COPY} ${COPY}.1 ${COPY}.dd + diff --git a/regress/sftp.sh b/regress/sftp.sh index f84fa6f4..b8e9f752 100644 --- a/regress/sftp.sh +++ b/regress/sftp.sh @@ -1,11 +1,8 @@ -# $OpenBSD: sftp.sh,v 1.3 2009/08/13 01:11:55 djm Exp $ +# $OpenBSD: sftp.sh,v 1.5 2013/05/17 10:28:11 dtucker Exp $ # Placed in the Public Domain. tid="basic sftp put/get" -DATA=/bin/ls${EXEEXT} -COPY=${OBJ}/copy - SFTPCMDFILE=${OBJ}/batch cat >$SFTPCMDFILE <<EOF version diff --git a/regress/ssh-com-client.sh b/regress/ssh-com-client.sh index 324a0a72..e4f80cf0 100644 --- a/regress/ssh-com-client.sh +++ b/regress/ssh-com-client.sh @@ -1,4 +1,4 @@ -# $OpenBSD: ssh-com-client.sh,v 1.6 2004/02/24 17:06:52 markus Exp $ +# $OpenBSD: ssh-com-client.sh,v 1.7 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="connect with ssh.com client" @@ -67,10 +67,6 @@ EOF # we need a real server (no ProxyConnect option) start_sshd -DATA=/bin/ls${EXEEXT} -COPY=${OBJ}/copy -rm -f ${COPY} - # go for it for v in ${VERSIONS}; do ssh2=${TEST_COMBASE}/${v}/ssh2 diff --git a/regress/ssh-com-sftp.sh b/regress/ssh-com-sftp.sh index be6f4e0d..fabfa498 100644 --- a/regress/ssh-com-sftp.sh +++ b/regress/ssh-com-sftp.sh @@ -1,10 +1,8 @@ -# $OpenBSD: ssh-com-sftp.sh,v 1.6 2009/08/20 18:43:07 djm Exp $ +# $OpenBSD: ssh-com-sftp.sh,v 1.7 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="basic sftp put/get with ssh.com server" -DATA=/bin/ls${EXEEXT} -COPY=${OBJ}/copy SFTPCMDFILE=${OBJ}/batch cat >$SFTPCMDFILE <<EOF diff --git a/regress/ssh-com.sh b/regress/ssh-com.sh index 7bcd85b6..6c5cfe88 100644 --- a/regress/ssh-com.sh +++ b/regress/ssh-com.sh @@ -1,4 +1,4 @@ -# $OpenBSD: ssh-com.sh,v 1.7 2004/02/24 17:06:52 markus Exp $ +# $OpenBSD: ssh-com.sh,v 1.8 2013/05/17 00:37:40 dtucker Exp $ # Placed in the Public Domain. tid="connect to ssh.com server" @@ -70,7 +70,7 @@ done # convert and append DSA hostkey ( - echon 'ssh2-localhost-with-alias,127.0.0.1,::1 ' + printf 'ssh2-localhost-with-alias,127.0.0.1,::1 ' ${SSHKEYGEN} -if ${SRC}/dsa_ssh2.pub ) >> $OBJ/known_hosts diff --git a/regress/sshd-log-wrapper.sh b/regress/sshd-log-wrapper.sh index c7a5ef3a..a9386be4 100644 --- a/regress/sshd-log-wrapper.sh +++ b/regress/sshd-log-wrapper.sh @@ -1,5 +1,5 @@ #!/bin/sh -# $OpenBSD: sshd-log-wrapper.sh,v 1.2 2005/02/27 11:40:30 dtucker Exp $ +# $OpenBSD: sshd-log-wrapper.sh,v 1.3 2013/04/07 02:16:03 dtucker Exp $ # Placed in the Public Domain. # # simple wrapper for sshd proxy mode to catch stderr output @@ -10,4 +10,4 @@ log=$2 shift shift -exec $sshd $@ -e 2>>$log +exec $sshd -E$log $@ diff --git a/regress/stderr-after-eof.sh b/regress/stderr-after-eof.sh index 05a5ea56..218ac6b6 100644 --- a/regress/stderr-after-eof.sh +++ b/regress/stderr-after-eof.sh @@ -1,29 +1,13 @@ -# $OpenBSD: stderr-after-eof.sh,v 1.1 2002/03/23 16:38:09 markus Exp $ +# $OpenBSD: stderr-after-eof.sh,v 1.2 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="stderr data after eof" -DATA=/etc/motd -DATA=${OBJ}/data -COPY=${OBJ}/copy - -if have_prog md5sum; then - CHECKSUM=md5sum -elif have_prog openssl; then - CHECKSUM="openssl md5" -elif have_prog cksum; then - CHECKSUM=cksum -elif have_prog sum; then - CHECKSUM=sum -else - fatal "No checksum program available, aborting $tid test" -fi - # setup data rm -f ${DATA} ${COPY} cp /dev/null ${DATA} for i in 1 2 3 4 5 6; do - (date;echo $i) | $CHECKSUM >> ${DATA} + (date;echo $i) | md5 >> ${DATA} done ${SSH} -2 -F $OBJ/ssh_proxy otherhost \ diff --git a/regress/stderr-data.sh b/regress/stderr-data.sh index 1daf79bb..b0bd2355 100644 --- a/regress/stderr-data.sh +++ b/regress/stderr-data.sh @@ -1,12 +1,8 @@ -# $OpenBSD: stderr-data.sh,v 1.2 2002/03/27 22:39:52 markus Exp $ +# $OpenBSD: stderr-data.sh,v 1.3 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="stderr data transfer" -DATA=/bin/ls${EXEEXT} -COPY=${OBJ}/copy -rm -f ${COPY} - for n in '' -n; do for p in 1 2; do verbose "test $tid: proto $p ($n)" diff --git a/regress/test-exec.sh b/regress/test-exec.sh index 092cfed5..aac8aa5c 100644 --- a/regress/test-exec.sh +++ b/regress/test-exec.sh @@ -1,4 +1,4 @@ -# $OpenBSD: test-exec.sh,v 1.37 2010/02/24 06:21:56 djm Exp $ +# $OpenBSD: test-exec.sh,v 1.47 2013/11/09 05:41:34 dtucker Exp $ # Placed in the Public Domain. #SUDO=sudo @@ -12,6 +12,13 @@ OSF1*) BIN_SH=xpg4 export BIN_SH ;; +CYGWIN_NT-5.0) + os=cygwin + TEST_SSH_IPV6=no + ;; +CYGWIN*) + os=cygwin + ;; esac if [ ! -z "$TEST_SSH_PORT" ]; then @@ -126,29 +133,65 @@ fi # Path to sshd must be absolute for rexec case "$SSHD" in /*) ;; -*) SSHD=`which sshd` ;; +*) SSHD=`which $SSHD` ;; esac +case "$SSHAGENT" in +/*) ;; +*) SSHAGENT=`which $SSHAGENT` ;; +esac + +# Logfiles. +# SSH_LOGFILE should be the debug output of ssh(1) only +# SSHD_LOGFILE should be the debug output of sshd(8) only +# REGRESS_LOGFILE is the output of the test itself stdout and stderr if [ "x$TEST_SSH_LOGFILE" = "x" ]; then - TEST_SSH_LOGFILE=/dev/null + TEST_SSH_LOGFILE=$OBJ/ssh.log +fi +if [ "x$TEST_SSHD_LOGFILE" = "x" ]; then + TEST_SSHD_LOGFILE=$OBJ/sshd.log +fi +if [ "x$TEST_REGRESS_LOGFILE" = "x" ]; then + TEST_REGRESS_LOGFILE=$OBJ/regress.log fi +# truncate logfiles +>$TEST_SSH_LOGFILE +>$TEST_SSHD_LOGFILE +>$TEST_REGRESS_LOGFILE + +# Create wrapper ssh with logging. We can't just specify "SSH=ssh -E..." +# because sftp and scp don't handle spaces in arguments. +SSHLOGWRAP=$OBJ/ssh-log-wrapper.sh +echo "#!/bin/sh" > $SSHLOGWRAP +echo "exec ${SSH} -E${TEST_SSH_LOGFILE} "'"$@"' >>$SSHLOGWRAP + +chmod a+rx $OBJ/ssh-log-wrapper.sh +SSH="$SSHLOGWRAP" + +# Some test data. We make a copy because some tests will overwrite it. +# The tests may assume that $DATA exists and is writable and $COPY does +# not exist. Tests requiring larger data files can call increase_datafile_size +# [kbytes] to ensure the file is at least that large. +DATANAME=data +DATA=$OBJ/${DATANAME} +cat ${SSHAGENT} >${DATA} +chmod u+w ${DATA} +COPY=$OBJ/copy +rm -f ${COPY} + +increase_datafile_size() +{ + while [ `du -k ${DATA} | cut -f1` -lt $1 ]; do + cat ${SSHAGENT} >>${DATA} + done +} + # these should be used in tests export SSH SSHD SSHAGENT SSHADD SSHKEYGEN SSHKEYSCAN SFTP SFTPSERVER SCP #echo $SSH $SSHD $SSHAGENT $SSHADD $SSHKEYGEN $SSHKEYSCAN $SFTP $SFTPSERVER $SCP -# helper -echon() -{ - if [ "x`echo -n`" = "x" ]; then - echo -n "$@" - elif [ "x`echo '\c'`" = "x" ]; then - echo "$@\c" - else - fatal "Don't know how to echo without newline." - fi -} - +# Portable specific functions have_prog() { saved_IFS="$IFS" @@ -164,6 +207,37 @@ have_prog() return 1 } +jot() { + awk "BEGIN { for (i = $2; i < $2 + $1; i++) { printf \"%d\n\", i } exit }" +} + +# Check whether preprocessor symbols are defined in config.h. +config_defined () +{ + str=$1 + while test "x$2" != "x" ; do + str="$str|$2" + shift + done + egrep "^#define.*($str)" ${BUILDDIR}/config.h >/dev/null 2>&1 +} + +md5 () { + if have_prog md5sum; then + md5sum + elif have_prog openssl; then + openssl md5 + elif have_prog cksum; then + cksum + elif have_prog sum; then + sum + else + wc -c + fi +} +# End of portable specific functions + +# helper cleanup () { if [ -f $PIDFILE ]; then @@ -188,9 +262,26 @@ cleanup () fi } +start_debug_log () +{ + echo "trace: $@" >$TEST_REGRESS_LOGFILE + echo "trace: $@" >$TEST_SSH_LOGFILE + echo "trace: $@" >$TEST_SSHD_LOGFILE +} + +save_debug_log () +{ + echo $@ >>$TEST_REGRESS_LOGFILE + echo $@ >>$TEST_SSH_LOGFILE + echo $@ >>$TEST_SSHD_LOGFILE + (cat $TEST_REGRESS_LOGFILE; echo) >>$OBJ/failed-regress.log + (cat $TEST_SSH_LOGFILE; echo) >>$OBJ/failed-ssh.log + (cat $TEST_SSHD_LOGFILE; echo) >>$OBJ/failed-sshd.log +} + trace () { - echo "trace: $@" >>$TEST_SSH_LOGFILE + start_debug_log $@ if [ "X$TEST_SSH_TRACE" = "Xyes" ]; then echo "$@" fi @@ -198,7 +289,7 @@ trace () verbose () { - echo "verbose: $@" >>$TEST_SSH_LOGFILE + start_debug_log $@ if [ "X$TEST_SSH_QUIET" != "Xyes" ]; then echo "$@" fi @@ -212,31 +303,21 @@ warn () fail () { - echo "FAIL: $@" >>$TEST_SSH_LOGFILE + save_debug_log "FAIL: $@" RESULT=1 echo "$@" + } fatal () { - echo "FATAL: $@" >>$TEST_SSH_LOGFILE - echon "FATAL: " + save_debug_log "FATAL: $@" + printf "FATAL: " fail "$@" cleanup exit $RESULT } -# Check whether preprocessor symbols are defined in config.h. -config_defined () -{ - str=$1 - while test "x$2" != "x" ; do - str="$str|$2" - shift - done - egrep "^#define.*($str)" ${BUILDDIR}/config.h >/dev/null 2>&1 -} - RESULT=0 PIDFILE=$OBJ/pidfile @@ -252,7 +333,7 @@ cat << EOF > $OBJ/sshd_config #ListenAddress ::1 PidFile $PIDFILE AuthorizedKeysFile $OBJ/authorized_keys_%u - LogLevel VERBOSE + LogLevel DEBUG3 AcceptEnv _XXX_TEST_* AcceptEnv _XXX_TEST Subsystem sftp $SFTPSERVER @@ -284,8 +365,10 @@ Host * ChallengeResponseAuthentication no HostbasedAuthentication no PasswordAuthentication no + RhostsRSAAuthentication no BatchMode yes StrictHostKeyChecking yes + LogLevel DEBUG3 EOF if [ ! -z "$TEST_SSH_SSH_CONFOPTS" ]; then @@ -298,13 +381,15 @@ rm -f $OBJ/known_hosts $OBJ/authorized_keys_$USER trace "generate keys" for t in rsa rsa1; do # generate user key - rm -f $OBJ/$t - ${SSHKEYGEN} -b 1024 -q -N '' -t $t -f $OBJ/$t ||\ - fail "ssh-keygen for $t failed" + if [ ! -f $OBJ/$t ] || [ ${SSHKEYGEN} -nt $OBJ/$t ]; then + rm -f $OBJ/$t + ${SSHKEYGEN} -q -N '' -t $t -f $OBJ/$t ||\ + fail "ssh-keygen for $t failed" + fi # known hosts file for client ( - echon 'localhost-with-alias,127.0.0.1,::1 ' + printf 'localhost-with-alias,127.0.0.1,::1 ' cat $OBJ/$t.pub ) >> $OBJ/known_hosts @@ -359,7 +444,7 @@ if test "$REGRESS_INTEROP_PUTTY" = "yes" ; then echo "Hostname=127.0.0.1" >> ${OBJ}/.putty/sessions/localhost_proxy echo "PortNumber=$PORT" >> ${OBJ}/.putty/sessions/localhost_proxy echo "ProxyMethod=5" >> ${OBJ}/.putty/sessions/localhost_proxy - echo "ProxyTelnetCommand=sh ${SRC}/sshd-log-wrapper.sh ${SSHD} ${TEST_SSH_LOGFILE} -i -f $OBJ/sshd_proxy" >> ${OBJ}/.putty/sessions/localhost_proxy + echo "ProxyTelnetCommand=sh ${SRC}/sshd-log-wrapper.sh ${SSHD} ${TEST_SSHD_LOGFILE} -i -f $OBJ/sshd_proxy" >> ${OBJ}/.putty/sessions/localhost_proxy REGRESS_INTEROP_PUTTY=yes fi @@ -367,7 +452,7 @@ fi # create a proxy version of the client config ( cat $OBJ/ssh_config - echo proxycommand ${SUDO} sh ${SRC}/sshd-log-wrapper.sh ${SSHD} ${TEST_SSH_LOGFILE} -i -f $OBJ/sshd_proxy + echo proxycommand ${SUDO} sh ${SRC}/sshd-log-wrapper.sh ${SSHD} ${TEST_SSHD_LOGFILE} -i -f $OBJ/sshd_proxy ) > $OBJ/ssh_proxy # check proxy config @@ -377,7 +462,7 @@ start_sshd () { # start sshd $SUDO ${SSHD} -f $OBJ/sshd_config "$@" -t || fatal "sshd_config broken" - $SUDO ${SSHD} -f $OBJ/sshd_config -e "$@" >>$TEST_SSH_LOGFILE 2>&1 + $SUDO ${SSHD} -f $OBJ/sshd_config "$@" -E$TEST_SSHD_LOGFILE trace "wait for sshd" i=0; diff --git a/regress/transfer.sh b/regress/transfer.sh index 13ea367d..1ae3ef5b 100644 --- a/regress/transfer.sh +++ b/regress/transfer.sh @@ -1,11 +1,8 @@ -# $OpenBSD: transfer.sh,v 1.1 2002/03/27 00:03:37 markus Exp $ +# $OpenBSD: transfer.sh,v 1.2 2013/05/17 04:29:14 dtucker Exp $ # Placed in the Public Domain. tid="transfer data" -DATA=/bin/ls${EXEEXT} -COPY=${OBJ}/copy - for p in 1 2; do verbose "$tid: proto $p" rm -f ${COPY} diff --git a/regress/try-ciphers.sh b/regress/try-ciphers.sh index 0918d224..ac34cedb 100644 --- a/regress/try-ciphers.sh +++ b/regress/try-ciphers.sh @@ -1,24 +1,23 @@ -# $OpenBSD: try-ciphers.sh,v 1.12 2011/08/02 01:23:41 djm Exp $ +# $OpenBSD: try-ciphers.sh,v 1.22 2013/11/21 03:18:51 djm Exp $ # Placed in the Public Domain. tid="try ciphers" -ciphers="aes128-cbc 3des-cbc blowfish-cbc cast128-cbc - arcfour128 arcfour256 arcfour - aes192-cbc aes256-cbc rijndael-cbc@lysator.liu.se - aes128-ctr aes192-ctr aes256-ctr" -macs="hmac-sha1 hmac-md5 umac-64@openssh.com hmac-sha1-96 hmac-md5-96" -config_defined HAVE_EVP_SHA256 && - macs="$macs hmac-sha2-256 hmac-sha2-256-96 hmac-sha2-512 hmac-sha2-512-96" - -for c in $ciphers; do - for m in $macs; do +for c in `${SSH} -Q cipher`; do + n=0 + for m in `${SSH} -Q mac`; do trace "proto 2 cipher $c mac $m" verbose "test $tid: proto 2 cipher $c mac $m" ${SSH} -F $OBJ/ssh_proxy -2 -m $m -c $c somehost true if [ $? -ne 0 ]; then fail "ssh -2 failed with mac $m cipher $c" fi + # No point trying all MACs for AEAD ciphers since they + # are ignored. + if ssh -Q cipher-auth | grep "^${c}\$" >/dev/null 2>&1 ; then + break + fi + n=`expr $n + 1` done done @@ -32,20 +31,3 @@ for c in $ciphers; do fi done -if ${SSH} -oCiphers=acss@openssh.org 2>&1 | grep "Bad SSH2 cipher" >/dev/null -then - : -else - -echo "Ciphers acss@openssh.org" >> $OBJ/sshd_proxy -c=acss@openssh.org -for m in $macs; do - trace "proto 2 $c mac $m" - verbose "test $tid: proto 2 cipher $c mac $m" - ${SSH} -F $OBJ/ssh_proxy -2 -m $m -c $c somehost true - if [ $? -ne 0 ]; then - fail "ssh -2 failed with mac $m cipher $c" - fi -done - -fi diff --git a/roaming_client.c b/roaming_client.c index 48009d78..de049cdc 100644 --- a/roaming_client.c +++ b/roaming_client.c @@ -1,4 +1,4 @@ -/* $OpenBSD: roaming_client.c,v 1.4 2011/12/07 05:44:38 djm Exp $ */ +/* $OpenBSD: roaming_client.c,v 1.7 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2004-2009 AppGate Network Security AB * @@ -48,6 +48,7 @@ #include "roaming.h" #include "ssh2.h" #include "sshconnect.h" +#include "digest.h" /* import */ extern Options options; @@ -90,10 +91,8 @@ request_roaming(void) static void roaming_auth_required(void) { - u_char digest[SHA_DIGEST_LENGTH]; - EVP_MD_CTX md; + u_char digest[SSH_DIGEST_MAX_LENGTH]; Buffer b; - const EVP_MD *evp_md = EVP_sha1(); u_int64_t chall, oldchall; chall = packet_get_int64(); @@ -107,14 +106,13 @@ roaming_auth_required(void) buffer_init(&b); buffer_put_int64(&b, cookie); buffer_put_int64(&b, chall); - EVP_DigestInit(&md, evp_md); - EVP_DigestUpdate(&md, buffer_ptr(&b), buffer_len(&b)); - EVP_DigestFinal(&md, digest, NULL); + if (ssh_digest_buffer(SSH_DIGEST_SHA1, &b, digest, sizeof(digest)) != 0) + fatal("%s: ssh_digest_buffer failed", __func__); buffer_free(&b); packet_start(SSH2_MSG_KEX_ROAMING_AUTH); packet_put_int64(key1 ^ get_recv_bytes()); - packet_put_raw(digest, sizeof(digest)); + packet_put_raw(digest, ssh_digest_bytes(SSH_DIGEST_SHA1)); packet_send(); oldkey1 = key1; @@ -187,10 +185,10 @@ roaming_resume(void) debug("server doesn't allow resume"); goto fail; } - xfree(str); + free(str); for (i = 1; i < PROPOSAL_MAX; i++) { /* kex algorithm taken care of so start with i=1 and not 0 */ - xfree(packet_get_string(&len)); + free(packet_get_string(&len)); } i = packet_get_char(); /* first_kex_packet_follows */ if (i && (c = strchr(kexlist, ','))) @@ -226,8 +224,7 @@ roaming_resume(void) return 0; fail: - if (kexlist) - xfree(kexlist); + free(kexlist); if (packet_get_connection_in() == packet_get_connection_out()) close(packet_get_connection_in()); else { @@ -260,10 +257,10 @@ wait_for_roaming_reconnect(void) if (c != '\n' && c != '\r') continue; - if (ssh_connect(host, &hostaddr, options.port, + if (ssh_connect(host, NULL, &hostaddr, options.port, options.address_family, 1, &timeout_ms, - options.tcp_keep_alive, options.use_privileged_port, - options.proxy_command) == 0 && roaming_resume() == 0) { + options.tcp_keep_alive, options.use_privileged_port) == 0 && + roaming_resume() == 0) { packet_restore_state(); reenter_guard = 0; fprintf(stderr, "[connection resumed]\n"); diff --git a/roaming_common.c b/roaming_common.c index 8d0b6054..787bef04 100644 --- a/roaming_common.c +++ b/roaming_common.c @@ -1,4 +1,4 @@ -/* $OpenBSD: roaming_common.c,v 1.9 2011/12/07 05:44:38 djm Exp $ */ +/* $OpenBSD: roaming_common.c,v 1.12 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2004-2009 AppGate Network Security AB * @@ -36,6 +36,7 @@ #include "cipher.h" #include "buffer.h" #include "roaming.h" +#include "digest.h" static size_t out_buf_size = 0; static char *out_buf = NULL; @@ -49,7 +50,7 @@ int roaming_enabled = 0; int resume_in_progress = 0; int -get_snd_buf_size() +get_snd_buf_size(void) { int fd = packet_get_connection_out(); int optval; @@ -61,7 +62,7 @@ get_snd_buf_size() } int -get_recv_buf_size() +get_recv_buf_size(void) { int fd = packet_get_connection_in(); int optval; @@ -225,9 +226,7 @@ resend_bytes(int fd, u_int64_t *offset) void calculate_new_key(u_int64_t *key, u_int64_t cookie, u_int64_t challenge) { - const EVP_MD *md = EVP_sha1(); - EVP_MD_CTX ctx; - char hash[EVP_MAX_MD_SIZE]; + u_char hash[SSH_DIGEST_MAX_LENGTH]; Buffer b; buffer_init(&b); @@ -235,12 +234,11 @@ calculate_new_key(u_int64_t *key, u_int64_t cookie, u_int64_t challenge) buffer_put_int64(&b, cookie); buffer_put_int64(&b, challenge); - EVP_DigestInit(&ctx, md); - EVP_DigestUpdate(&ctx, buffer_ptr(&b), buffer_len(&b)); - EVP_DigestFinal(&ctx, hash, NULL); + if (ssh_digest_buffer(SSH_DIGEST_SHA1, &b, hash, sizeof(hash)) != 0) + fatal("%s: digest_buffer failed", __func__); buffer_clear(&b); - buffer_append(&b, hash, EVP_MD_size(md)); + buffer_append(&b, hash, ssh_digest_bytes(SSH_DIGEST_SHA1)); *key = buffer_get_int64(&b); buffer_free(&b); } @@ -1,4 +1,4 @@ -/* $OpenBSD: rsa.c,v 1.29 2006/11/06 21:25:28 markus Exp $ */ +/* $OpenBSD: rsa.c,v 1.30 2013/05/17 00:13:14 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -96,8 +96,8 @@ rsa_public_encrypt(BIGNUM *out, BIGNUM *in, RSA *key) memset(outbuf, 0, olen); memset(inbuf, 0, ilen); - xfree(outbuf); - xfree(inbuf); + free(outbuf); + free(inbuf); } int @@ -122,8 +122,8 @@ rsa_private_decrypt(BIGNUM *out, BIGNUM *in, RSA *key) } memset(outbuf, 0, olen); memset(inbuf, 0, ilen); - xfree(outbuf); - xfree(inbuf); + free(outbuf); + free(inbuf); return len; } diff --git a/sandbox-capsicum.c b/sandbox-capsicum.c new file mode 100644 index 00000000..ee2a7e79 --- /dev/null +++ b/sandbox-capsicum.c @@ -0,0 +1,120 @@ +/* + * Copyright (c) 2011 Dag-Erling Smorgrav + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "includes.h" + +#ifdef SANDBOX_CAPSICUM + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/time.h> +#include <sys/resource.h> +#include <sys/capability.h> + +#include <errno.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "log.h" +#include "monitor.h" +#include "ssh-sandbox.h" +#include "xmalloc.h" + +/* + * Capsicum sandbox that sets zero nfiles, nprocs and filesize rlimits, + * limits rights on stdout, stdin, stderr, monitor and switches to + * capability mode. + */ + +struct ssh_sandbox { + struct monitor *monitor; + pid_t child_pid; +}; + +struct ssh_sandbox * +ssh_sandbox_init(struct monitor *monitor) +{ + struct ssh_sandbox *box; + + /* + * Strictly, we don't need to maintain any state here but we need + * to return non-NULL to satisfy the API. + */ + debug3("%s: preparing capsicum sandbox", __func__); + box = xcalloc(1, sizeof(*box)); + box->monitor = monitor; + box->child_pid = 0; + + return box; +} + +void +ssh_sandbox_child(struct ssh_sandbox *box) +{ + struct rlimit rl_zero; + cap_rights_t rights; + + rl_zero.rlim_cur = rl_zero.rlim_max = 0; + + if (setrlimit(RLIMIT_FSIZE, &rl_zero) == -1) + fatal("%s: setrlimit(RLIMIT_FSIZE, { 0, 0 }): %s", + __func__, strerror(errno)); +#ifndef SANDBOX_SKIP_RLIMIT_NOFILE + if (setrlimit(RLIMIT_NOFILE, &rl_zero) == -1) + fatal("%s: setrlimit(RLIMIT_NOFILE, { 0, 0 }): %s", + __func__, strerror(errno)); +#endif + if (setrlimit(RLIMIT_NPROC, &rl_zero) == -1) + fatal("%s: setrlimit(RLIMIT_NPROC, { 0, 0 }): %s", + __func__, strerror(errno)); + + cap_rights_init(&rights); + + if (cap_rights_limit(STDIN_FILENO, &rights) < 0 && errno != ENOSYS) + fatal("can't limit stdin: %m"); + if (cap_rights_limit(STDOUT_FILENO, &rights) < 0 && errno != ENOSYS) + fatal("can't limit stdout: %m"); + if (cap_rights_limit(STDERR_FILENO, &rights) < 0 && errno != ENOSYS) + fatal("can't limit stderr: %m"); + + cap_rights_init(&rights, CAP_READ, CAP_WRITE); + if (cap_rights_limit(box->monitor->m_recvfd, &rights) == -1) + fatal("%s: failed to limit the network socket", __func__); + cap_rights_init(&rights, CAP_WRITE); + if (cap_rights_limit(box->monitor->m_log_sendfd, &rights) == -1) + fatal("%s: failed to limit the logging socket", __func__); + if (cap_enter() < 0 && errno != ENOSYS) + fatal("%s: failed to enter capability mode", __func__); + +} + +void +ssh_sandbox_parent_finish(struct ssh_sandbox *box) +{ + free(box); + debug3("%s: finished", __func__); +} + +void +ssh_sandbox_parent_preauth(struct ssh_sandbox *box, pid_t child_pid) +{ + box->child_pid = child_pid; +} + +#endif /* SANDBOX_CAPSICUM */ diff --git a/sandbox-darwin.c b/sandbox-darwin.c index 69901ef1..35f0c4d1 100644 --- a/sandbox-darwin.c +++ b/sandbox-darwin.c @@ -40,7 +40,7 @@ struct ssh_sandbox { }; struct ssh_sandbox * -ssh_sandbox_init(void) +ssh_sandbox_init(struct monitor *monitor) { struct ssh_sandbox *box; diff --git a/sandbox-null.c b/sandbox-null.c index 29fa9669..d4cb9188 100644 --- a/sandbox-null.c +++ b/sandbox-null.c @@ -39,7 +39,7 @@ struct ssh_sandbox { }; struct ssh_sandbox * -ssh_sandbox_init(void) +ssh_sandbox_init(struct monitor *monitor) { struct ssh_sandbox *box; diff --git a/sandbox-rlimit.c b/sandbox-rlimit.c index 761e9284..bba80778 100644 --- a/sandbox-rlimit.c +++ b/sandbox-rlimit.c @@ -42,7 +42,7 @@ struct ssh_sandbox { }; struct ssh_sandbox * -ssh_sandbox_init(void) +ssh_sandbox_init(struct monitor *monitor) { struct ssh_sandbox *box; @@ -64,12 +64,16 @@ ssh_sandbox_child(struct ssh_sandbox *box) rl_zero.rlim_cur = rl_zero.rlim_max = 0; +#ifndef SANDBOX_SKIP_RLIMIT_FSIZE if (setrlimit(RLIMIT_FSIZE, &rl_zero) == -1) fatal("%s: setrlimit(RLIMIT_FSIZE, { 0, 0 }): %s", __func__, strerror(errno)); +#endif +#ifndef SANDBOX_SKIP_RLIMIT_NOFILE if (setrlimit(RLIMIT_NOFILE, &rl_zero) == -1) fatal("%s: setrlimit(RLIMIT_NOFILE, { 0, 0 }): %s", __func__, strerror(errno)); +#endif #ifdef HAVE_RLIMIT_NPROC if (setrlimit(RLIMIT_NPROC, &rl_zero) == -1) fatal("%s: setrlimit(RLIMIT_NPROC, { 0, 0 }): %s", diff --git a/sandbox-seccomp-filter.c b/sandbox-seccomp-filter.c new file mode 100644 index 00000000..2f73067e --- /dev/null +++ b/sandbox-seccomp-filter.c @@ -0,0 +1,237 @@ +/* + * Copyright (c) 2012 Will Drewry <wad@dataspill.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * Uncomment the SANDBOX_SECCOMP_FILTER_DEBUG macro below to help diagnose + * filter breakage during development. *Do not* use this in production, + * as it relies on making library calls that are unsafe in signal context. + * + * Instead, live systems the auditctl(8) may be used to monitor failures. + * E.g. + * auditctl -a task,always -F uid=<privsep uid> + */ +/* #define SANDBOX_SECCOMP_FILTER_DEBUG 1 */ + +#ifdef SANDBOX_SECCOMP_FILTER_DEBUG +/* Use the kernel headers in case of an older toolchain. */ +# include <asm/siginfo.h> +# define __have_siginfo_t 1 +# define __have_sigval_t 1 +# define __have_sigevent_t 1 +#endif /* SANDBOX_SECCOMP_FILTER_DEBUG */ + +#include "includes.h" + +#ifdef SANDBOX_SECCOMP_FILTER + +#include <sys/types.h> +#include <sys/resource.h> +#include <sys/prctl.h> + +#include <linux/audit.h> +#include <linux/filter.h> +#include <linux/seccomp.h> +#include <elf.h> + +#include <asm/unistd.h> + +#include <errno.h> +#include <signal.h> +#include <stdarg.h> +#include <stddef.h> /* for offsetof */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "log.h" +#include "ssh-sandbox.h" +#include "xmalloc.h" + +/* Linux seccomp_filter sandbox */ +#define SECCOMP_FILTER_FAIL SECCOMP_RET_KILL + +/* Use a signal handler to emit violations when debugging */ +#ifdef SANDBOX_SECCOMP_FILTER_DEBUG +# undef SECCOMP_FILTER_FAIL +# define SECCOMP_FILTER_FAIL SECCOMP_RET_TRAP +#endif /* SANDBOX_SECCOMP_FILTER_DEBUG */ + +/* Simple helpers to avoid manual errors (but larger BPF programs). */ +#define SC_DENY(_nr, _errno) \ + BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, __NR_ ## _nr, 0, 1), \ + BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_ERRNO|(_errno)) +#define SC_ALLOW(_nr) \ + BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, __NR_ ## _nr, 0, 1), \ + BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_ALLOW) + +/* Syscall filtering set for preauth. */ +static const struct sock_filter preauth_insns[] = { + /* Ensure the syscall arch convention is as expected. */ + BPF_STMT(BPF_LD+BPF_W+BPF_ABS, + offsetof(struct seccomp_data, arch)), + BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, SECCOMP_AUDIT_ARCH, 1, 0), + BPF_STMT(BPF_RET+BPF_K, SECCOMP_FILTER_FAIL), + /* Load the syscall number for checking. */ + BPF_STMT(BPF_LD+BPF_W+BPF_ABS, + offsetof(struct seccomp_data, nr)), + SC_DENY(open, EACCES), + SC_ALLOW(getpid), + SC_ALLOW(gettimeofday), + SC_ALLOW(clock_gettime), +#ifdef __NR_time /* not defined on EABI ARM */ + SC_ALLOW(time), +#endif + SC_ALLOW(read), + SC_ALLOW(write), + SC_ALLOW(close), + SC_ALLOW(brk), + SC_ALLOW(poll), +#ifdef __NR__newselect + SC_ALLOW(_newselect), +#else + SC_ALLOW(select), +#endif + SC_ALLOW(madvise), +#ifdef __NR_mmap2 /* EABI ARM only has mmap2() */ + SC_ALLOW(mmap2), +#endif +#ifdef __NR_mmap + SC_ALLOW(mmap), +#endif + SC_ALLOW(munmap), + SC_ALLOW(exit_group), +#ifdef __NR_rt_sigprocmask + SC_ALLOW(rt_sigprocmask), +#else + SC_ALLOW(sigprocmask), +#endif + BPF_STMT(BPF_RET+BPF_K, SECCOMP_FILTER_FAIL), +}; + +static const struct sock_fprog preauth_program = { + .len = (unsigned short)(sizeof(preauth_insns)/sizeof(preauth_insns[0])), + .filter = (struct sock_filter *)preauth_insns, +}; + +struct ssh_sandbox { + pid_t child_pid; +}; + +struct ssh_sandbox * +ssh_sandbox_init(struct monitor *monitor) +{ + struct ssh_sandbox *box; + + /* + * Strictly, we don't need to maintain any state here but we need + * to return non-NULL to satisfy the API. + */ + debug3("%s: preparing seccomp filter sandbox", __func__); + box = xcalloc(1, sizeof(*box)); + box->child_pid = 0; + + return box; +} + +#ifdef SANDBOX_SECCOMP_FILTER_DEBUG +extern struct monitor *pmonitor; +void mm_log_handler(LogLevel level, const char *msg, void *ctx); + +static void +ssh_sandbox_violation(int signum, siginfo_t *info, void *void_context) +{ + char msg[256]; + + snprintf(msg, sizeof(msg), + "%s: unexpected system call (arch:0x%x,syscall:%d @ %p)", + __func__, info->si_arch, info->si_syscall, info->si_call_addr); + mm_log_handler(SYSLOG_LEVEL_FATAL, msg, pmonitor); + _exit(1); +} + +static void +ssh_sandbox_child_debugging(void) +{ + struct sigaction act; + sigset_t mask; + + debug3("%s: installing SIGSYS handler", __func__); + memset(&act, 0, sizeof(act)); + sigemptyset(&mask); + sigaddset(&mask, SIGSYS); + + act.sa_sigaction = &ssh_sandbox_violation; + act.sa_flags = SA_SIGINFO; + if (sigaction(SIGSYS, &act, NULL) == -1) + fatal("%s: sigaction(SIGSYS): %s", __func__, strerror(errno)); + if (sigprocmask(SIG_UNBLOCK, &mask, NULL) == -1) + fatal("%s: sigprocmask(SIGSYS): %s", + __func__, strerror(errno)); +} +#endif /* SANDBOX_SECCOMP_FILTER_DEBUG */ + +void +ssh_sandbox_child(struct ssh_sandbox *box) +{ + struct rlimit rl_zero; + int nnp_failed = 0; + + /* Set rlimits for completeness if possible. */ + rl_zero.rlim_cur = rl_zero.rlim_max = 0; + if (setrlimit(RLIMIT_FSIZE, &rl_zero) == -1) + fatal("%s: setrlimit(RLIMIT_FSIZE, { 0, 0 }): %s", + __func__, strerror(errno)); + if (setrlimit(RLIMIT_NOFILE, &rl_zero) == -1) + fatal("%s: setrlimit(RLIMIT_NOFILE, { 0, 0 }): %s", + __func__, strerror(errno)); + if (setrlimit(RLIMIT_NPROC, &rl_zero) == -1) + fatal("%s: setrlimit(RLIMIT_NPROC, { 0, 0 }): %s", + __func__, strerror(errno)); + +#ifdef SANDBOX_SECCOMP_FILTER_DEBUG + ssh_sandbox_child_debugging(); +#endif /* SANDBOX_SECCOMP_FILTER_DEBUG */ + + debug3("%s: setting PR_SET_NO_NEW_PRIVS", __func__); + if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) == -1) { + debug("%s: prctl(PR_SET_NO_NEW_PRIVS): %s", + __func__, strerror(errno)); + nnp_failed = 1; + } + debug3("%s: attaching seccomp filter program", __func__); + if (prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &preauth_program) == -1) + debug("%s: prctl(PR_SET_SECCOMP): %s", + __func__, strerror(errno)); + else if (nnp_failed) + fatal("%s: SECCOMP_MODE_FILTER activated but " + "PR_SET_NO_NEW_PRIVS failed", __func__); +} + +void +ssh_sandbox_parent_finish(struct ssh_sandbox *box) +{ + free(box); + debug3("%s: finished", __func__); +} + +void +ssh_sandbox_parent_preauth(struct ssh_sandbox *box, pid_t child_pid) +{ + box->child_pid = child_pid; +} + +#endif /* SANDBOX_SECCOMP_FILTER */ diff --git a/sandbox-systrace.c b/sandbox-systrace.c index 5a39f4fe..53fbd47c 100644 --- a/sandbox-systrace.c +++ b/sandbox-systrace.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sandbox-systrace.c,v 1.4 2011/07/29 14:42:45 djm Exp $ */ +/* $OpenBSD: sandbox-systrace.c,v 1.7 2013/06/01 13:15:52 dtucker Exp $ */ /* * Copyright (c) 2011 Damien Miller <djm@mindrot.org> * @@ -24,12 +24,14 @@ #include <sys/ioctl.h> #include <sys/syscall.h> #include <sys/socket.h> +#include <sys/wait.h> #include <dev/systrace.h> #include <errno.h> #include <fcntl.h> #include <limits.h> +#include <signal.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> @@ -55,9 +57,11 @@ static const struct sandbox_policy preauth_policy[] = { { SYS_exit, SYSTR_POLICY_PERMIT }, { SYS_getpid, SYSTR_POLICY_PERMIT }, { SYS_gettimeofday, SYSTR_POLICY_PERMIT }, + { SYS_clock_gettime, SYSTR_POLICY_PERMIT }, { SYS_madvise, SYSTR_POLICY_PERMIT }, { SYS_mmap, SYSTR_POLICY_PERMIT }, { SYS_mprotect, SYSTR_POLICY_PERMIT }, + { SYS_mquery, SYSTR_POLICY_PERMIT }, { SYS_poll, SYSTR_POLICY_PERMIT }, { SYS_munmap, SYSTR_POLICY_PERMIT }, { SYS_read, SYSTR_POLICY_PERMIT }, @@ -68,26 +72,21 @@ static const struct sandbox_policy preauth_policy[] = { }; struct ssh_sandbox { - int child_sock; - int parent_sock; int systrace_fd; pid_t child_pid; + void (*osigchld)(int); }; struct ssh_sandbox * -ssh_sandbox_init(void) +ssh_sandbox_init(struct monitor *monitor) { struct ssh_sandbox *box; - int s[2]; debug3("%s: preparing systrace sandbox", __func__); box = xcalloc(1, sizeof(*box)); - if (socketpair(AF_UNIX, SOCK_STREAM, 0, s) == -1) - fatal("%s: socketpair: %s", __func__, strerror(errno)); - box->child_sock = s[0]; - box->parent_sock = s[1]; box->systrace_fd = -1; box->child_pid = 0; + box->osigchld = signal(SIGCHLD, SIG_IGN); return box; } @@ -95,35 +94,38 @@ ssh_sandbox_init(void) void ssh_sandbox_child(struct ssh_sandbox *box) { - char whatever = 0; - - close(box->parent_sock); - /* Signal parent that we are ready */ debug3("%s: ready", __func__); - if (atomicio(vwrite, box->child_sock, &whatever, 1) != 1) - fatal("%s: write: %s", __func__, strerror(errno)); - /* Wait for parent to signal for us to go */ - if (atomicio(read, box->child_sock, &whatever, 1) != 1) - fatal("%s: read: %s", __func__, strerror(errno)); + signal(SIGCHLD, box->osigchld); + if (kill(getpid(), SIGSTOP) != 0) + fatal("%s: kill(%d, SIGSTOP)", __func__, getpid()); debug3("%s: started", __func__); - close(box->child_sock); } static void ssh_sandbox_parent(struct ssh_sandbox *box, pid_t child_pid, const struct sandbox_policy *allowed_syscalls) { - int dev_systrace, i, j, found; - char whatever = 0; + int dev_systrace, i, j, found, status; + pid_t pid; struct systrace_policy policy; + /* Wait for the child to send itself a SIGSTOP */ debug3("%s: wait for child %ld", __func__, (long)child_pid); + do { + pid = waitpid(child_pid, &status, WUNTRACED); + } while (pid == -1 && errno == EINTR); + signal(SIGCHLD, box->osigchld); + if (!WIFSTOPPED(status)) { + if (WIFSIGNALED(status)) + fatal("%s: child terminated with signal %d", + __func__, WTERMSIG(status)); + if (WIFEXITED(status)) + fatal("%s: child exited with status %d", + __func__, WEXITSTATUS(status)); + fatal("%s: child not stopped", __func__); + } + debug3("%s: child %ld stopped", __func__, (long)child_pid); box->child_pid = child_pid; - close(box->child_sock); - /* Wait for child to signal that it is ready */ - if (atomicio(read, box->parent_sock, &whatever, 1) != 1) - fatal("%s: read: %s", __func__, strerror(errno)); - debug3("%s: child %ld ready", __func__, (long)child_pid); /* Set up systracing of child */ if ((dev_systrace = open("/dev/systrace", O_RDONLY)) == -1) @@ -174,9 +176,8 @@ ssh_sandbox_parent(struct ssh_sandbox *box, pid_t child_pid, /* Signal the child to start running */ debug3("%s: start child %ld", __func__, (long)child_pid); - if (atomicio(vwrite, box->parent_sock, &whatever, 1) != 1) - fatal("%s: write: %s", __func__, strerror(errno)); - close(box->parent_sock); + if (kill(box->child_pid, SIGCONT) != 0) + fatal("%s: kill(%d, SIGCONT)", __func__, box->child_pid); } void diff --git a/sc25519.c b/sc25519.c new file mode 100644 index 00000000..1568d9a5 --- /dev/null +++ b/sc25519.c @@ -0,0 +1,308 @@ +/* $OpenBSD: sc25519.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* + * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, + * Peter Schwabe, Bo-Yin Yang. + * Copied from supercop-20130419/crypto_sign/ed25519/ref/sc25519.c + */ + +#include "includes.h" + +#include "sc25519.h" + +/*Arithmetic modulo the group order m = 2^252 + 27742317777372353535851937790883648493 = 7237005577332262213973186563042994240857116359379907606001950938285454250989 */ + +static const crypto_uint32 m[32] = {0xED, 0xD3, 0xF5, 0x5C, 0x1A, 0x63, 0x12, 0x58, 0xD6, 0x9C, 0xF7, 0xA2, 0xDE, 0xF9, 0xDE, 0x14, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10}; + +static const crypto_uint32 mu[33] = {0x1B, 0x13, 0x2C, 0x0A, 0xA3, 0xE5, 0x9C, 0xED, 0xA7, 0x29, 0x63, 0x08, 0x5D, 0x21, 0x06, 0x21, + 0xEB, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F}; + +static crypto_uint32 lt(crypto_uint32 a,crypto_uint32 b) /* 16-bit inputs */ +{ + unsigned int x = a; + x -= (unsigned int) b; /* 0..65535: no; 4294901761..4294967295: yes */ + x >>= 31; /* 0: no; 1: yes */ + return x; +} + +/* Reduce coefficients of r before calling reduce_add_sub */ +static void reduce_add_sub(sc25519 *r) +{ + crypto_uint32 pb = 0; + crypto_uint32 b; + crypto_uint32 mask; + int i; + unsigned char t[32]; + + for(i=0;i<32;i++) + { + pb += m[i]; + b = lt(r->v[i],pb); + t[i] = r->v[i]-pb+(b<<8); + pb = b; + } + mask = b - 1; + for(i=0;i<32;i++) + r->v[i] ^= mask & (r->v[i] ^ t[i]); +} + +/* Reduce coefficients of x before calling barrett_reduce */ +static void barrett_reduce(sc25519 *r, const crypto_uint32 x[64]) +{ + /* See HAC, Alg. 14.42 */ + int i,j; + crypto_uint32 q2[66]; + crypto_uint32 *q3 = q2 + 33; + crypto_uint32 r1[33]; + crypto_uint32 r2[33]; + crypto_uint32 carry; + crypto_uint32 pb = 0; + crypto_uint32 b; + + for (i = 0;i < 66;++i) q2[i] = 0; + for (i = 0;i < 33;++i) r2[i] = 0; + + for(i=0;i<33;i++) + for(j=0;j<33;j++) + if(i+j >= 31) q2[i+j] += mu[i]*x[j+31]; + carry = q2[31] >> 8; + q2[32] += carry; + carry = q2[32] >> 8; + q2[33] += carry; + + for(i=0;i<33;i++)r1[i] = x[i]; + for(i=0;i<32;i++) + for(j=0;j<33;j++) + if(i+j < 33) r2[i+j] += m[i]*q3[j]; + + for(i=0;i<32;i++) + { + carry = r2[i] >> 8; + r2[i+1] += carry; + r2[i] &= 0xff; + } + + for(i=0;i<32;i++) + { + pb += r2[i]; + b = lt(r1[i],pb); + r->v[i] = r1[i]-pb+(b<<8); + pb = b; + } + + /* XXX: Can it really happen that r<0?, See HAC, Alg 14.42, Step 3 + * If so: Handle it here! + */ + + reduce_add_sub(r); + reduce_add_sub(r); +} + +void sc25519_from32bytes(sc25519 *r, const unsigned char x[32]) +{ + int i; + crypto_uint32 t[64]; + for(i=0;i<32;i++) t[i] = x[i]; + for(i=32;i<64;++i) t[i] = 0; + barrett_reduce(r, t); +} + +void shortsc25519_from16bytes(shortsc25519 *r, const unsigned char x[16]) +{ + int i; + for(i=0;i<16;i++) r->v[i] = x[i]; +} + +void sc25519_from64bytes(sc25519 *r, const unsigned char x[64]) +{ + int i; + crypto_uint32 t[64]; + for(i=0;i<64;i++) t[i] = x[i]; + barrett_reduce(r, t); +} + +void sc25519_from_shortsc(sc25519 *r, const shortsc25519 *x) +{ + int i; + for(i=0;i<16;i++) + r->v[i] = x->v[i]; + for(i=0;i<16;i++) + r->v[16+i] = 0; +} + +void sc25519_to32bytes(unsigned char r[32], const sc25519 *x) +{ + int i; + for(i=0;i<32;i++) r[i] = x->v[i]; +} + +int sc25519_iszero_vartime(const sc25519 *x) +{ + int i; + for(i=0;i<32;i++) + if(x->v[i] != 0) return 0; + return 1; +} + +int sc25519_isshort_vartime(const sc25519 *x) +{ + int i; + for(i=31;i>15;i--) + if(x->v[i] != 0) return 0; + return 1; +} + +int sc25519_lt_vartime(const sc25519 *x, const sc25519 *y) +{ + int i; + for(i=31;i>=0;i--) + { + if(x->v[i] < y->v[i]) return 1; + if(x->v[i] > y->v[i]) return 0; + } + return 0; +} + +void sc25519_add(sc25519 *r, const sc25519 *x, const sc25519 *y) +{ + int i, carry; + for(i=0;i<32;i++) r->v[i] = x->v[i] + y->v[i]; + for(i=0;i<31;i++) + { + carry = r->v[i] >> 8; + r->v[i+1] += carry; + r->v[i] &= 0xff; + } + reduce_add_sub(r); +} + +void sc25519_sub_nored(sc25519 *r, const sc25519 *x, const sc25519 *y) +{ + crypto_uint32 b = 0; + crypto_uint32 t; + int i; + for(i=0;i<32;i++) + { + t = x->v[i] - y->v[i] - b; + r->v[i] = t & 255; + b = (t >> 8) & 1; + } +} + +void sc25519_mul(sc25519 *r, const sc25519 *x, const sc25519 *y) +{ + int i,j,carry; + crypto_uint32 t[64]; + for(i=0;i<64;i++)t[i] = 0; + + for(i=0;i<32;i++) + for(j=0;j<32;j++) + t[i+j] += x->v[i] * y->v[j]; + + /* Reduce coefficients */ + for(i=0;i<63;i++) + { + carry = t[i] >> 8; + t[i+1] += carry; + t[i] &= 0xff; + } + + barrett_reduce(r, t); +} + +void sc25519_mul_shortsc(sc25519 *r, const sc25519 *x, const shortsc25519 *y) +{ + sc25519 t; + sc25519_from_shortsc(&t, y); + sc25519_mul(r, x, &t); +} + +void sc25519_window3(signed char r[85], const sc25519 *s) +{ + char carry; + int i; + for(i=0;i<10;i++) + { + r[8*i+0] = s->v[3*i+0] & 7; + r[8*i+1] = (s->v[3*i+0] >> 3) & 7; + r[8*i+2] = (s->v[3*i+0] >> 6) & 7; + r[8*i+2] ^= (s->v[3*i+1] << 2) & 7; + r[8*i+3] = (s->v[3*i+1] >> 1) & 7; + r[8*i+4] = (s->v[3*i+1] >> 4) & 7; + r[8*i+5] = (s->v[3*i+1] >> 7) & 7; + r[8*i+5] ^= (s->v[3*i+2] << 1) & 7; + r[8*i+6] = (s->v[3*i+2] >> 2) & 7; + r[8*i+7] = (s->v[3*i+2] >> 5) & 7; + } + r[8*i+0] = s->v[3*i+0] & 7; + r[8*i+1] = (s->v[3*i+0] >> 3) & 7; + r[8*i+2] = (s->v[3*i+0] >> 6) & 7; + r[8*i+2] ^= (s->v[3*i+1] << 2) & 7; + r[8*i+3] = (s->v[3*i+1] >> 1) & 7; + r[8*i+4] = (s->v[3*i+1] >> 4) & 7; + + /* Making it signed */ + carry = 0; + for(i=0;i<84;i++) + { + r[i] += carry; + r[i+1] += r[i] >> 3; + r[i] &= 7; + carry = r[i] >> 2; + r[i] -= carry<<3; + } + r[84] += carry; +} + +void sc25519_window5(signed char r[51], const sc25519 *s) +{ + char carry; + int i; + for(i=0;i<6;i++) + { + r[8*i+0] = s->v[5*i+0] & 31; + r[8*i+1] = (s->v[5*i+0] >> 5) & 31; + r[8*i+1] ^= (s->v[5*i+1] << 3) & 31; + r[8*i+2] = (s->v[5*i+1] >> 2) & 31; + r[8*i+3] = (s->v[5*i+1] >> 7) & 31; + r[8*i+3] ^= (s->v[5*i+2] << 1) & 31; + r[8*i+4] = (s->v[5*i+2] >> 4) & 31; + r[8*i+4] ^= (s->v[5*i+3] << 4) & 31; + r[8*i+5] = (s->v[5*i+3] >> 1) & 31; + r[8*i+6] = (s->v[5*i+3] >> 6) & 31; + r[8*i+6] ^= (s->v[5*i+4] << 2) & 31; + r[8*i+7] = (s->v[5*i+4] >> 3) & 31; + } + r[8*i+0] = s->v[5*i+0] & 31; + r[8*i+1] = (s->v[5*i+0] >> 5) & 31; + r[8*i+1] ^= (s->v[5*i+1] << 3) & 31; + r[8*i+2] = (s->v[5*i+1] >> 2) & 31; + + /* Making it signed */ + carry = 0; + for(i=0;i<50;i++) + { + r[i] += carry; + r[i+1] += r[i] >> 5; + r[i] &= 31; + carry = r[i] >> 4; + r[i] -= carry<<5; + } + r[50] += carry; +} + +void sc25519_2interleave2(unsigned char r[127], const sc25519 *s1, const sc25519 *s2) +{ + int i; + for(i=0;i<31;i++) + { + r[4*i] = ( s1->v[i] & 3) ^ (( s2->v[i] & 3) << 2); + r[4*i+1] = ((s1->v[i] >> 2) & 3) ^ (((s2->v[i] >> 2) & 3) << 2); + r[4*i+2] = ((s1->v[i] >> 4) & 3) ^ (((s2->v[i] >> 4) & 3) << 2); + r[4*i+3] = ((s1->v[i] >> 6) & 3) ^ (((s2->v[i] >> 6) & 3) << 2); + } + r[124] = ( s1->v[31] & 3) ^ (( s2->v[31] & 3) << 2); + r[125] = ((s1->v[31] >> 2) & 3) ^ (((s2->v[31] >> 2) & 3) << 2); + r[126] = ((s1->v[31] >> 4) & 3) ^ (((s2->v[31] >> 4) & 3) << 2); +} diff --git a/sc25519.h b/sc25519.h new file mode 100644 index 00000000..a2c15d5f --- /dev/null +++ b/sc25519.h @@ -0,0 +1,80 @@ +/* $OpenBSD: sc25519.h,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* + * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, + * Peter Schwabe, Bo-Yin Yang. + * Copied from supercop-20130419/crypto_sign/ed25519/ref/sc25519.h + */ + +#ifndef SC25519_H +#define SC25519_H + +#include "crypto_api.h" + +#define sc25519 crypto_sign_ed25519_ref_sc25519 +#define shortsc25519 crypto_sign_ed25519_ref_shortsc25519 +#define sc25519_from32bytes crypto_sign_ed25519_ref_sc25519_from32bytes +#define shortsc25519_from16bytes crypto_sign_ed25519_ref_shortsc25519_from16bytes +#define sc25519_from64bytes crypto_sign_ed25519_ref_sc25519_from64bytes +#define sc25519_from_shortsc crypto_sign_ed25519_ref_sc25519_from_shortsc +#define sc25519_to32bytes crypto_sign_ed25519_ref_sc25519_to32bytes +#define sc25519_iszero_vartime crypto_sign_ed25519_ref_sc25519_iszero_vartime +#define sc25519_isshort_vartime crypto_sign_ed25519_ref_sc25519_isshort_vartime +#define sc25519_lt_vartime crypto_sign_ed25519_ref_sc25519_lt_vartime +#define sc25519_add crypto_sign_ed25519_ref_sc25519_add +#define sc25519_sub_nored crypto_sign_ed25519_ref_sc25519_sub_nored +#define sc25519_mul crypto_sign_ed25519_ref_sc25519_mul +#define sc25519_mul_shortsc crypto_sign_ed25519_ref_sc25519_mul_shortsc +#define sc25519_window3 crypto_sign_ed25519_ref_sc25519_window3 +#define sc25519_window5 crypto_sign_ed25519_ref_sc25519_window5 +#define sc25519_2interleave2 crypto_sign_ed25519_ref_sc25519_2interleave2 + +typedef struct +{ + crypto_uint32 v[32]; +} +sc25519; + +typedef struct +{ + crypto_uint32 v[16]; +} +shortsc25519; + +void sc25519_from32bytes(sc25519 *r, const unsigned char x[32]); + +void shortsc25519_from16bytes(shortsc25519 *r, const unsigned char x[16]); + +void sc25519_from64bytes(sc25519 *r, const unsigned char x[64]); + +void sc25519_from_shortsc(sc25519 *r, const shortsc25519 *x); + +void sc25519_to32bytes(unsigned char r[32], const sc25519 *x); + +int sc25519_iszero_vartime(const sc25519 *x); + +int sc25519_isshort_vartime(const sc25519 *x); + +int sc25519_lt_vartime(const sc25519 *x, const sc25519 *y); + +void sc25519_add(sc25519 *r, const sc25519 *x, const sc25519 *y); + +void sc25519_sub_nored(sc25519 *r, const sc25519 *x, const sc25519 *y); + +void sc25519_mul(sc25519 *r, const sc25519 *x, const sc25519 *y); + +void sc25519_mul_shortsc(sc25519 *r, const sc25519 *x, const shortsc25519 *y); + +/* Convert s into a representation of the form \sum_{i=0}^{84}r[i]2^3 + * with r[i] in {-4,...,3} + */ +void sc25519_window3(signed char r[85], const sc25519 *s); + +/* Convert s into a representation of the form \sum_{i=0}^{50}r[i]2^5 + * with r[i] in {-16,...,15} + */ +void sc25519_window5(signed char r[51], const sc25519 *s); + +void sc25519_2interleave2(unsigned char r[127], const sc25519 *s1, const sc25519 *s2); + +#endif @@ -1,4 +1,4 @@ -/* $OpenBSD: schnorr.c,v 1.5 2010/12/03 23:49:26 djm Exp $ */ +/* $OpenBSD: schnorr.c,v 1.9 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2008 Damien Miller. All rights reserved. * @@ -41,6 +41,7 @@ #include "log.h" #include "schnorr.h" +#include "digest.h" #include "openbsd-compat/openssl-compat.h" @@ -57,12 +58,12 @@ /* * Calculate hash component of Schnorr signature H(g || g^v || g^x || id) - * using the hash function defined by "evp_md". Returns signature as + * using the hash function defined by "hash_alg". Returns signature as * bignum or NULL on error. */ static BIGNUM * schnorr_hash(const BIGNUM *p, const BIGNUM *q, const BIGNUM *g, - const EVP_MD *evp_md, const BIGNUM *g_v, const BIGNUM *g_x, + int hash_alg, const BIGNUM *g_v, const BIGNUM *g_x, const u_char *id, u_int idlen) { u_char *digest; @@ -88,7 +89,7 @@ schnorr_hash(const BIGNUM *p, const BIGNUM *q, const BIGNUM *g, SCHNORR_DEBUG_BUF((buffer_ptr(&b), buffer_len(&b), "%s: hashblob", __func__)); - if (hash_buffer(buffer_ptr(&b), buffer_len(&b), evp_md, + if (hash_buffer(buffer_ptr(&b), buffer_len(&b), hash_alg, &digest, &digest_len) != 0) { error("%s: hash_buffer", __func__); goto out; @@ -102,7 +103,7 @@ schnorr_hash(const BIGNUM *p, const BIGNUM *q, const BIGNUM *g, out: buffer_free(&b); bzero(digest, digest_len); - xfree(digest); + free(digest); digest_len = 0; if (success == 0) return h; @@ -113,7 +114,7 @@ schnorr_hash(const BIGNUM *p, const BIGNUM *q, const BIGNUM *g, /* * Generate Schnorr signature to prove knowledge of private value 'x' used * in public exponent g^x, under group defined by 'grp_p', 'grp_q' and 'grp_g' - * using the hash function "evp_md". + * using the hash function "hash_alg". * 'idlen' bytes from 'id' will be included in the signature hash as an anti- * replay salt. * @@ -123,7 +124,7 @@ schnorr_hash(const BIGNUM *p, const BIGNUM *q, const BIGNUM *g, */ int schnorr_sign(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g, - const EVP_MD *evp_md, const BIGNUM *x, const BIGNUM *g_x, + int hash_alg, const BIGNUM *x, const BIGNUM *g_x, const u_char *id, u_int idlen, BIGNUM **r_p, BIGNUM **e_p) { int success = -1; @@ -173,7 +174,7 @@ schnorr_sign(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g, SCHNORR_DEBUG_BN((g_v, "%s: g_v = ", __func__)); /* h = H(g || g^v || g^x || id) */ - if ((h = schnorr_hash(grp_p, grp_q, grp_g, evp_md, g_v, g_x, + if ((h = schnorr_hash(grp_p, grp_q, grp_g, hash_alg, g_v, g_x, id, idlen)) == NULL) { error("%s: schnorr_hash failed", __func__); goto out; @@ -223,7 +224,7 @@ schnorr_sign_buf(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g, Buffer b; BIGNUM *r, *e; - if (schnorr_sign(grp_p, grp_q, grp_g, EVP_sha256(), + if (schnorr_sign(grp_p, grp_q, grp_g, SSH_DIGEST_SHA256, x, g_x, id, idlen, &r, &e) != 0) return -1; @@ -248,13 +249,13 @@ schnorr_sign_buf(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g, /* * Verify Schnorr signature { r (v - xh mod q), e (g^v mod p) } against * public exponent g_x (g^x) under group defined by 'grp_p', 'grp_q' and - * 'grp_g' using hash "evp_md". + * 'grp_g' using hash "hash_alg". * Signature hash will be salted with 'idlen' bytes from 'id'. * Returns -1 on failure, 0 on incorrect signature or 1 on matching signature. */ int schnorr_verify(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g, - const EVP_MD *evp_md, const BIGNUM *g_x, const u_char *id, u_int idlen, + int hash_alg, const BIGNUM *g_x, const u_char *id, u_int idlen, const BIGNUM *r, const BIGNUM *e) { int success = -1; @@ -302,7 +303,7 @@ schnorr_verify(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g, SCHNORR_DEBUG_BN((g_xh, "%s: g_xh = ", __func__)); /* h = H(g || g^v || g^x || id) */ - if ((h = schnorr_hash(grp_p, grp_q, grp_g, evp_md, e, g_x, + if ((h = schnorr_hash(grp_p, grp_q, grp_g, hash_alg, e, g_x, id, idlen)) == NULL) { error("%s: schnorr_hash failed", __func__); goto out; @@ -385,7 +386,7 @@ schnorr_verify_buf(const BIGNUM *grp_p, const BIGNUM *grp_q, goto out; } - ret = schnorr_verify(grp_p, grp_q, grp_g, EVP_sha256(), + ret = schnorr_verify(grp_p, grp_q, grp_g, SSH_DIGEST_SHA256, g_x, id, idlen, r, e); out: BN_clear_free(e); @@ -443,43 +444,33 @@ bn_rand_range_gt_one(const BIGNUM *high) return NULL; } +/* XXX convert all callers of this to use ssh_digest_memory() directly */ /* * Hash contents of buffer 'b' with hash 'md'. Returns 0 on success, * with digest via 'digestp' (caller to free) and length via 'lenp'. * Returns -1 on failure. */ int -hash_buffer(const u_char *buf, u_int len, const EVP_MD *md, +hash_buffer(const u_char *buf, u_int len, int hash_alg, u_char **digestp, u_int *lenp) { - u_char digest[EVP_MAX_MD_SIZE]; - u_int digest_len; - EVP_MD_CTX evp_md_ctx; - int success = -1; + u_char digest[SSH_DIGEST_MAX_LENGTH]; + u_int digest_len = ssh_digest_bytes(hash_alg); - EVP_MD_CTX_init(&evp_md_ctx); - - if (EVP_DigestInit_ex(&evp_md_ctx, md, NULL) != 1) { - error("%s: EVP_DigestInit_ex", __func__); - goto out; - } - if (EVP_DigestUpdate(&evp_md_ctx, buf, len) != 1) { - error("%s: EVP_DigestUpdate", __func__); - goto out; + if (digest_len == 0) { + error("%s: invalid hash", __func__); + return -1; } - if (EVP_DigestFinal_ex(&evp_md_ctx, digest, &digest_len) != 1) { - error("%s: EVP_DigestFinal_ex", __func__); - goto out; + if (ssh_digest_memory(hash_alg, buf, len, digest, digest_len) != 0) { + error("%s: digest_memory failed", __func__); + return -1; } *digestp = xmalloc(digest_len); *lenp = digest_len; memcpy(*digestp, digest, *lenp); - success = 0; - out: - EVP_MD_CTX_cleanup(&evp_md_ctx); bzero(digest, sizeof(digest)); digest_len = 0; - return success; + return 0; } /* print formatted string followed by bignum */ @@ -488,12 +479,13 @@ debug3_bn(const BIGNUM *n, const char *fmt, ...) { char *out, *h; va_list args; + int ret; out = NULL; va_start(args, fmt); - vasprintf(&out, fmt, args); + ret = vasprintf(&out, fmt, args); va_end(args); - if (out == NULL) + if (ret == -1 || out == NULL) fatal("%s: vasprintf failed", __func__); if (n == NULL) @@ -513,12 +505,13 @@ debug3_buf(const u_char *buf, u_int len, const char *fmt, ...) char *out, h[65]; u_int i, j; va_list args; + int ret; out = NULL; va_start(args, fmt); - vasprintf(&out, fmt, args); + ret = vasprintf(&out, fmt, args); va_end(args); - if (out == NULL) + if (ret == -1 || out == NULL) fatal("%s: vasprintf failed", __func__); debug3("%s length %u%s", out, len, buf == NULL ? " (null)" : ""); @@ -547,7 +540,7 @@ modp_group_from_g_and_safe_p(const char *grp_g, const char *grp_p) { struct modp_group *ret; - ret = xmalloc(sizeof(*ret)); + ret = xcalloc(1, sizeof(*ret)); ret->p = ret->q = ret->g = NULL; if (BN_hex2bn(&ret->p, grp_p) == 0 || BN_hex2bn(&ret->g, grp_g) == 0) @@ -571,7 +564,7 @@ modp_group_free(struct modp_group *grp) if (grp->q != NULL) BN_clear_free(grp->q); bzero(grp, sizeof(*grp)); - xfree(grp); + free(grp); } /* main() function for self-test */ @@ -606,7 +599,7 @@ schnorr_selftest_one(const BIGNUM *grp_p, const BIGNUM *grp_q, if (schnorr_verify_buf(grp_p, grp_q, grp_g, g_x, "junk", 4, sig, siglen) != 0) fatal("%s: verify should have failed (bit error)", __func__); - xfree(sig); + free(sig); BN_free(g_x); BN_CTX_free(bn_ctx); } @@ -1,4 +1,4 @@ -/* $OpenBSD: schnorr.h,v 1.1 2009/03/05 07:18:19 djm Exp $ */ +/* $OpenBSD: schnorr.h,v 1.2 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2009 Damien Miller. All rights reserved. * @@ -27,7 +27,7 @@ struct modp_group { }; BIGNUM *bn_rand_range_gt_one(const BIGNUM *high); -int hash_buffer(const u_char *, u_int, const EVP_MD *, u_char **, u_int *); +int hash_buffer(const u_char *, u_int, int, u_char **, u_int *); void debug3_bn(const BIGNUM *, const char *, ...) __attribute__((__nonnull__ (2))) __attribute__((format(printf, 2, 3))); @@ -40,7 +40,7 @@ void modp_group_free(struct modp_group *); /* Signature and verification functions */ int schnorr_sign(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g, - const EVP_MD *evp_md, const BIGNUM *x, const BIGNUM *g_x, + int hash_alg, const BIGNUM *x, const BIGNUM *g_x, const u_char *id, u_int idlen, BIGNUM **r_p, BIGNUM **e_p); int schnorr_sign_buf(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g, @@ -48,7 +48,7 @@ schnorr_sign_buf(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g, u_char **sig, u_int *siglen); int schnorr_verify(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g, - const EVP_MD *evp_md, const BIGNUM *g_x, const u_char *id, u_int idlen, + int hash_alg, const BIGNUM *g_x, const u_char *id, u_int idlen, const BIGNUM *r, const BIGNUM *e); int schnorr_verify_buf(const BIGNUM *grp_p, const BIGNUM *grp_q, @@ -8,9 +8,9 @@ .\" .\" Created: Sun May 7 00:14:37 1995 ylo .\" -.\" $OpenBSD: scp.1,v 1.58 2011/09/05 07:01:44 jmc Exp $ +.\" $OpenBSD: scp.1,v 1.61 2013/10/20 09:51:26 djm Exp $ .\" -.Dd $Mdocdate: September 5 2011 $ +.Dd $Mdocdate: October 20 2013 $ .Dt SCP 1 .Os .Sh NAME @@ -130,6 +130,11 @@ For full details of the options listed below, and their possible values, see .It AddressFamily .It BatchMode .It BindAddress +.It CanonicalDomains +.It CanonicalizeFallbackLocal +.It CanonicalizeHostname +.It CanonicalizeMaxDots +.It CanonicalizePermittedCNAMEs .It ChallengeResponseAuthentication .It CheckHostIP .It Cipher @@ -232,8 +237,9 @@ debugging connection, authentication, and configuration problems. .Nm is based on the .Xr rcp 1 -program in BSD source code from the Regents of the University of -California. +program in +.Bx +source code from the Regents of the University of California. .Sh AUTHORS -.An Timo Rinne Aq tri@iki.fi -.An Tatu Ylonen Aq ylo@cs.hut.fi +.An Timo Rinne Aq Mt tri@iki.fi +.An Tatu Ylonen Aq Mt ylo@cs.hut.fi @@ -1,4 +1,4 @@ -/* $OpenBSD: scp.c,v 1.171 2011/09/09 22:37:01 djm Exp $ */ +/* $OpenBSD: scp.c,v 1.179 2013/11/20 20:53:10 deraadt Exp $ */ /* * scp - secure remote copy. This is basically patched BSD rcp which * uses ssh to do the data transfer (instead of using rcmd). @@ -103,7 +103,7 @@ #include <string.h> #include <time.h> #include <unistd.h> -#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) +#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) && !defined(BROKEN_STRNVIS) #include <vis.h> #endif @@ -550,6 +550,24 @@ scpio(void *_cnt, size_t s) return 0; } +static int +do_times(int fd, int verb, const struct stat *sb) +{ + /* strlen(2^64) == 20; strlen(10^6) == 7 */ + char buf[(20 + 7 + 2) * 2 + 2]; + + (void)snprintf(buf, sizeof(buf), "T%llu 0 %llu 0\n", + (unsigned long long) (sb->st_mtime < 0 ? 0 : sb->st_mtime), + (unsigned long long) (sb->st_atime < 0 ? 0 : sb->st_atime)); + if (verb) { + fprintf(stderr, "File mtime %lld atime %lld\n", + (long long)sb->st_mtime, (long long)sb->st_atime); + fprintf(stderr, "Sending file timestamps: %s", buf); + } + (void) atomicio(vwrite, fd, buf, strlen(buf)); + return (response()); +} + void toremote(char *targ, int argc, char **argv) { @@ -578,7 +596,7 @@ toremote(char *targ, int argc, char **argv) } if (tuser != NULL && !okname(tuser)) { - xfree(arg); + free(arg); return; } @@ -605,13 +623,13 @@ toremote(char *targ, int argc, char **argv) *src == '-' ? "-- " : "", src); if (do_cmd(host, suser, bp, &remin, &remout) < 0) exit(1); - (void) xfree(bp); + free(bp); host = cleanhostname(thost); xasprintf(&bp, "%s -t %s%s", cmd, *targ == '-' ? "-- " : "", targ); if (do_cmd2(host, tuser, bp, remin, remout) < 0) exit(1); - (void) xfree(bp); + free(bp); (void) close(remin); (void) close(remout); remin = remout = -1; @@ -662,12 +680,12 @@ toremote(char *targ, int argc, char **argv) exit(1); if (response() < 0) exit(1); - (void) xfree(bp); + free(bp); } source(1, argv + i); } } - xfree(arg); + free(arg); } void @@ -711,11 +729,11 @@ tolocal(int argc, char **argv) xasprintf(&bp, "%s -f %s%s", cmd, *src == '-' ? "-- " : "", src); if (do_cmd(host, suser, bp, &remin, &remout) < 0) { - (void) xfree(bp); + free(bp); ++errs; continue; } - xfree(bp); + free(bp); sink(1, argv + argc - 1); (void) close(remin); remin = remout = -1; @@ -774,21 +792,7 @@ syserr: run_err("%s: %s", name, strerror(errno)); ++last; curfile = last; if (pflag) { - /* - * Make it compatible with possible future - * versions expecting microseconds. - */ - (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n", - (u_long) (stb.st_mtime < 0 ? 0 : stb.st_mtime), - (u_long) (stb.st_atime < 0 ? 0 : stb.st_atime)); - if (verbose_mode) { - fprintf(stderr, "File mtime %ld atime %ld\n", - (long)stb.st_mtime, (long)stb.st_atime); - fprintf(stderr, "Sending file timestamps: %s", - buf); - } - (void) atomicio(vwrite, remout, buf, strlen(buf)); - if (response() < 0) + if (do_times(remout, verbose_mode, &stb) < 0) goto next; } #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO) @@ -850,7 +854,7 @@ rsource(char *name, struct stat *statp) { DIR *dirp; struct dirent *dp; - char *last, *vect[1], path[1100]; + char *last, *vect[1], path[MAXPATHLEN]; if (!(dirp = opendir(name))) { run_err("%s: %s", name, strerror(errno)); @@ -862,11 +866,7 @@ rsource(char *name, struct stat *statp) else last++; if (pflag) { - (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n", - (u_long) statp->st_mtime, - (u_long) statp->st_atime); - (void) atomicio(vwrite, remout, path, strlen(path)); - if (response() < 0) { + if (do_times(remout, verbose_mode, statp) < 0) { closedir(dirp); return; } @@ -912,6 +912,7 @@ sink(int argc, char **argv) int amt, exists, first, ofd; mode_t mode, omode, mask; off_t size, statbytes; + unsigned long long ull; int setimes, targisdir, wrerrno = 0; char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; struct timeval tv[2]; @@ -970,17 +971,31 @@ sink(int argc, char **argv) if (*cp == 'T') { setimes++; cp++; - mtime.tv_sec = strtol(cp, &cp, 10); + if (!isdigit((unsigned char)*cp)) + SCREWUP("mtime.sec not present"); + ull = strtoull(cp, &cp, 10); if (!cp || *cp++ != ' ') SCREWUP("mtime.sec not delimited"); + if ((time_t)ull < 0 || + (unsigned long long)(time_t)ull != ull) + setimes = 0; /* out of range */ + mtime.tv_sec = ull; mtime.tv_usec = strtol(cp, &cp, 10); - if (!cp || *cp++ != ' ') + if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 || + mtime.tv_usec > 999999) SCREWUP("mtime.usec not delimited"); - atime.tv_sec = strtol(cp, &cp, 10); + if (!isdigit((unsigned char)*cp)) + SCREWUP("atime.sec not present"); + ull = strtoull(cp, &cp, 10); if (!cp || *cp++ != ' ') SCREWUP("atime.sec not delimited"); + if ((time_t)ull < 0 || + (unsigned long long)(time_t)ull != ull) + setimes = 0; /* out of range */ + atime.tv_sec = ull; atime.tv_usec = strtol(cp, &cp, 10); - if (!cp || *cp++ != '\0') + if (!cp || *cp++ != '\0' || atime.tv_usec < 0 || + atime.tv_usec > 999999) SCREWUP("atime.usec not delimited"); (void) atomicio(vwrite, remout, "", 1); continue; @@ -1008,7 +1023,7 @@ sink(int argc, char **argv) if (*cp++ != ' ') SCREWUP("mode not delimited"); - for (size = 0; isdigit(*cp);) + for (size = 0; isdigit((unsigned char)*cp);) size = size * 10 + (*cp++ - '0'); if (*cp++ != ' ') SCREWUP("size not delimited"); @@ -1023,8 +1038,7 @@ sink(int argc, char **argv) need = strlen(targ) + strlen(cp) + 250; if (need > cursize) { - if (namebuf) - xfree(namebuf); + free(namebuf); namebuf = xmalloc(need); cursize = need; } @@ -1063,12 +1077,11 @@ sink(int argc, char **argv) } if (mod_flag) (void) chmod(vect[0], mode); - if (vect[0]) - xfree(vect[0]); + free(vect[0]); continue; } omode = mode; - mode |= S_IWRITE; + mode |= S_IWUSR; if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) { bad: run_err("%s: %s", np, strerror(errno)); continue; @@ -1274,7 +1287,7 @@ okname(char *cp0) c = (int)*cp; if (c & 0200) goto bad; - if (!isalpha(c) && !isdigit(c)) { + if (!isalpha(c) && !isdigit((unsigned char)c)) { switch (c) { case '\'': case '"': @@ -1325,7 +1338,7 @@ void lostconn(int signo) { if (!iamremote) - write(STDERR_FILENO, "lost connection\n", 16); + (void)write(STDERR_FILENO, "lost connection\n", 16); if (signo) _exit(1); else @@ -1,4 +1,5 @@ -/* $OpenBSD: servconf.c,v 1.223 2011/09/23 00:22:04 dtucker Exp $ */ + +/* $OpenBSD: servconf.c,v 1.248 2013/12/06 13:39:49 markus Exp $ */ /* * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland * All rights reserved @@ -19,6 +20,7 @@ #include <netinet/in_systm.h> #include <netinet/ip.h> +#include <ctype.h> #include <netdb.h> #include <pwd.h> #include <stdio.h> @@ -28,6 +30,9 @@ #include <unistd.h> #include <stdarg.h> #include <errno.h> +#ifdef HAVE_UTIL_H +#include <util.h> +#endif #include "openbsd-compat/sys-queue.h" #include "xmalloc.h" @@ -45,6 +50,10 @@ #include "match.h" #include "channels.h" #include "groupaccess.h" +#include "canohost.h" +#include "packet.h" +#include "hostfile.h" +#include "auth.h" static void add_listen_addr(ServerOptions *, char *, int); static void add_one_listen_addr(ServerOptions *, char *, int); @@ -70,6 +79,7 @@ initialize_server_options(ServerOptions *options) options->address_family = -1; options->num_host_key_files = 0; options->num_host_cert_files = 0; + options->host_key_agent = NULL; options->pid_file = NULL; options->server_key_bits = -1; options->login_grace_time = -1; @@ -82,6 +92,7 @@ initialize_server_options(ServerOptions *options) options->x11_forwarding = -1; options->x11_display_offset = -1; options->x11_use_localhost = -1; + options->permit_tty = -1; options->xauth_location = NULL; options->strict_modes = -1; options->tcp_keep_alive = -1; @@ -105,6 +116,8 @@ initialize_server_options(ServerOptions *options) options->permit_user_env = -1; options->use_login = -1; options->compression = -1; + options->rekey_limit = -1; + options->rekey_interval = -1; options->allow_tcp_forwarding = -1; options->allow_agent_forwarding = -1; options->num_allow_users = 0; @@ -132,12 +145,15 @@ initialize_server_options(ServerOptions *options) options->num_permitted_opens = -1; options->adm_forced_command = NULL; options->chroot_directory = NULL; + options->authorized_keys_command = NULL; + options->authorized_keys_command_user = NULL; options->zero_knowledge_password_authentication = -1; options->revoked_keys_file = NULL; options->trusted_user_ca_keys = NULL; options->authorized_principals_file = NULL; options->ip_qos_interactive = -1; options->ip_qos_bulk = -1; + options->version_addendum = NULL; } void @@ -164,6 +180,8 @@ fill_default_server_options(ServerOptions *options) options->host_key_files[options->num_host_key_files++] = _PATH_HOST_ECDSA_KEY_FILE; #endif + options->host_key_files[options->num_host_key_files++] = + _PATH_HOST_ED25519_KEY_FILE; } } /* No certificates by default */ @@ -197,6 +215,8 @@ fill_default_server_options(ServerOptions *options) options->x11_use_localhost = 1; if (options->xauth_location == NULL) options->xauth_location = _PATH_XAUTH; + if (options->permit_tty == -1) + options->permit_tty = 1; if (options->strict_modes == -1) options->strict_modes = 1; if (options->tcp_keep_alive == -1) @@ -241,18 +261,22 @@ fill_default_server_options(ServerOptions *options) options->use_login = 0; if (options->compression == -1) options->compression = COMP_DELAYED; + if (options->rekey_limit == -1) + options->rekey_limit = 0; + if (options->rekey_interval == -1) + options->rekey_interval = 0; if (options->allow_tcp_forwarding == -1) - options->allow_tcp_forwarding = 1; + options->allow_tcp_forwarding = FORWARD_ALLOW; if (options->allow_agent_forwarding == -1) options->allow_agent_forwarding = 1; if (options->gateway_ports == -1) options->gateway_ports = 0; if (options->max_startups == -1) - options->max_startups = 10; + options->max_startups = 100; if (options->max_startups_rate == -1) - options->max_startups_rate = 100; /* 100% */ + options->max_startups_rate = 30; /* 30% */ if (options->max_startups_begin == -1) - options->max_startups_begin = options->max_startups; + options->max_startups_begin = 10; if (options->max_authtries == -1) options->max_authtries = DEFAULT_AUTH_FAIL_MAX; if (options->max_sessions == -1) @@ -277,10 +301,11 @@ fill_default_server_options(ServerOptions *options) options->ip_qos_interactive = IPTOS_LOWDELAY; if (options->ip_qos_bulk == -1) options->ip_qos_bulk = IPTOS_THROUGHPUT; - + if (options->version_addendum == NULL) + options->version_addendum = xstrdup(""); /* Turn privilege separation on by default */ if (use_privsep == -1) - use_privsep = PRIVSEP_ON; + use_privsep = PRIVSEP_NOSANDBOX; #ifndef HAVE_MMAP if (use_privsep && options->compression == 1) { @@ -309,9 +334,9 @@ typedef enum { sListenAddress, sAddressFamily, sPrintMotd, sPrintLastLog, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost, - sStrictModes, sEmptyPasswd, sTCPKeepAlive, + sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive, sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression, - sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, + sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile, sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions, @@ -323,7 +348,9 @@ typedef enum { sUsePrivilegeSeparation, sAllowAgentForwarding, sZeroKnowledgePasswordAuthentication, sHostCertificate, sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile, - sKexAlgorithms, sIPQoS, + sKexAlgorithms, sIPQoS, sVersionAddendum, + sAuthorizedKeysCommand, sAuthorizedKeysCommandUser, + sAuthenticationMethods, sHostKeyAgent, sDeprecated, sUnsupported } ServerOpCodes; @@ -348,6 +375,7 @@ static struct { { "port", sPort, SSHCFG_GLOBAL }, { "hostkey", sHostKeyFile, SSHCFG_GLOBAL }, { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */ + { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL }, { "pidfile", sPidFile, SSHCFG_GLOBAL }, { "serverkeybits", sServerKeyBits, SSHCFG_GLOBAL }, { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL }, @@ -411,14 +439,15 @@ static struct { { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL }, { "uselogin", sUseLogin, SSHCFG_GLOBAL }, { "compression", sCompression, SSHCFG_GLOBAL }, + { "rekeylimit", sRekeyLimit, SSHCFG_ALL }, { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */ { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL }, { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL }, - { "allowusers", sAllowUsers, SSHCFG_GLOBAL }, - { "denyusers", sDenyUsers, SSHCFG_GLOBAL }, - { "allowgroups", sAllowGroups, SSHCFG_GLOBAL }, - { "denygroups", sDenyGroups, SSHCFG_GLOBAL }, + { "allowusers", sAllowUsers, SSHCFG_ALL }, + { "denyusers", sDenyUsers, SSHCFG_ALL }, + { "allowgroups", sAllowGroups, SSHCFG_ALL }, + { "denygroups", sDenyGroups, SSHCFG_ALL }, { "ciphers", sCiphers, SSHCFG_GLOBAL }, { "macs", sMacs, SSHCFG_GLOBAL }, { "protocol", sProtocol, SSHCFG_GLOBAL }, @@ -436,8 +465,9 @@ static struct { { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL }, { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL }, { "useprivilegeseparation", sUsePrivilegeSeparation, SSHCFG_GLOBAL}, - { "acceptenv", sAcceptEnv, SSHCFG_GLOBAL }, + { "acceptenv", sAcceptEnv, SSHCFG_ALL }, { "permittunnel", sPermitTunnel, SSHCFG_ALL }, + { "permittty", sPermitTTY, SSHCFG_ALL }, { "match", sMatch, SSHCFG_ALL }, { "permitopen", sPermitOpen, SSHCFG_ALL }, { "forcecommand", sForceCommand, SSHCFG_ALL }, @@ -448,6 +478,10 @@ static struct { { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL }, { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL }, { "ipqos", sIPQoS, SSHCFG_ALL }, + { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL }, + { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL }, + { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL }, + { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL }, { NULL, sBadOption, 0 } }; @@ -494,7 +528,7 @@ derelativise_path(const char *path) if (getcwd(cwd, sizeof(cwd)) == NULL) fatal("%s: getcwd: %s", __func__, strerror(errno)); xasprintf(&ret, "%s/%s", cwd, expanded); - xfree(expanded); + free(expanded); return ret; } @@ -536,6 +570,20 @@ add_one_listen_addr(ServerOptions *options, char *addr, int port) options->listen_addrs = aitop; } +struct connection_info * +get_connection_info(int populate, int use_dns) +{ + static struct connection_info ci; + + if (!populate) + return &ci; + ci.host = get_canonical_hostname(use_dns); + ci.address = get_remote_ipaddr(); + ci.laddress = get_local_ipaddr(packet_get_connection_in()); + ci.lport = get_local_port(); + return &ci; +} + /* * The strategy for the Match blocks is that the config file is parsed twice. * @@ -597,59 +645,84 @@ out: return result; } +/* + * All of the attributes on a single Match line are ANDed together, so we need + * to check every attribute and set the result to zero if any attribute does + * not match. + */ static int -match_cfg_line(char **condition, int line, const char *user, const char *host, - const char *address) +match_cfg_line(char **condition, int line, struct connection_info *ci) { - int result = 1; + int result = 1, attributes = 0, port; char *arg, *attrib, *cp = *condition; size_t len; - if (user == NULL) + if (ci == NULL) debug3("checking syntax for 'Match %s'", cp); else - debug3("checking match for '%s' user %s host %s addr %s", cp, - user ? user : "(null)", host ? host : "(null)", - address ? address : "(null)"); + debug3("checking match for '%s' user %s host %s addr %s " + "laddr %s lport %d", cp, ci->user ? ci->user : "(null)", + ci->host ? ci->host : "(null)", + ci->address ? ci->address : "(null)", + ci->laddress ? ci->laddress : "(null)", ci->lport); while ((attrib = strdelim(&cp)) && *attrib != '\0') { + attributes++; + if (strcasecmp(attrib, "all") == 0) { + if (attributes != 1 || + ((arg = strdelim(&cp)) != NULL && *arg != '\0')) { + error("'all' cannot be combined with other " + "Match attributes"); + return -1; + } + *condition = cp; + return 1; + } if ((arg = strdelim(&cp)) == NULL || *arg == '\0') { error("Missing Match criteria for %s", attrib); return -1; } len = strlen(arg); if (strcasecmp(attrib, "user") == 0) { - if (!user) { + if (ci == NULL || ci->user == NULL) { result = 0; continue; } - if (match_pattern_list(user, arg, len, 0) != 1) + if (match_pattern_list(ci->user, arg, len, 0) != 1) result = 0; else debug("user %.100s matched 'User %.100s' at " - "line %d", user, arg, line); + "line %d", ci->user, arg, line); } else if (strcasecmp(attrib, "group") == 0) { - switch (match_cfg_line_group(arg, line, user)) { + if (ci == NULL || ci->user == NULL) { + result = 0; + continue; + } + switch (match_cfg_line_group(arg, line, ci->user)) { case -1: return -1; case 0: result = 0; } } else if (strcasecmp(attrib, "host") == 0) { - if (!host) { + if (ci == NULL || ci->host == NULL) { result = 0; continue; } - if (match_hostname(host, arg, len) != 1) + if (match_hostname(ci->host, arg, len) != 1) result = 0; else debug("connection from %.100s matched 'Host " - "%.100s' at line %d", host, arg, line); + "%.100s' at line %d", ci->host, arg, line); } else if (strcasecmp(attrib, "address") == 0) { - switch (addr_match_list(address, arg)) { + if (ci == NULL || ci->address == NULL) { + result = 0; + continue; + } + switch (addr_match_list(ci->address, arg)) { case 1: debug("connection from %.100s matched 'Address " - "%.100s' at line %d", address, arg, line); + "%.100s' at line %d", ci->address, arg, line); break; case 0: case -1: @@ -658,12 +731,51 @@ match_cfg_line(char **condition, int line, const char *user, const char *host, case -2: return -1; } + } else if (strcasecmp(attrib, "localaddress") == 0){ + if (ci == NULL || ci->laddress == NULL) { + result = 0; + continue; + } + switch (addr_match_list(ci->laddress, arg)) { + case 1: + debug("connection from %.100s matched " + "'LocalAddress %.100s' at line %d", + ci->laddress, arg, line); + break; + case 0: + case -1: + result = 0; + break; + case -2: + return -1; + } + } else if (strcasecmp(attrib, "localport") == 0) { + if ((port = a2port(arg)) == -1) { + error("Invalid LocalPort '%s' on Match line", + arg); + return -1; + } + if (ci == NULL || ci->lport == 0) { + result = 0; + continue; + } + /* TODO support port lists */ + if (port == ci->lport) + debug("connection from %.100s matched " + "'LocalPort %d' at line %d", + ci->laddress, port, line); + else + result = 0; } else { error("Unsupported Match attribute %s", attrib); return -1; } } - if (user != NULL) + if (attributes == 0) { + error("One or more attributes required for Match"); + return -1; + } + if (ci != NULL) debug3("match %sfound", result ? "" : "not "); *condition = cp; return result; @@ -702,25 +814,34 @@ static const struct multistate multistate_gatewayports[] = { { NULL, -1 } }; static const struct multistate multistate_privsep[] = { - { "sandbox", PRIVSEP_SANDBOX }, - { "yes", PRIVSEP_ON }, + { "yes", PRIVSEP_NOSANDBOX }, + { "sandbox", PRIVSEP_ON }, + { "nosandbox", PRIVSEP_NOSANDBOX }, { "no", PRIVSEP_OFF }, { NULL, -1 } }; +static const struct multistate multistate_tcpfwd[] = { + { "yes", FORWARD_ALLOW }, + { "all", FORWARD_ALLOW }, + { "no", FORWARD_DENY }, + { "remote", FORWARD_REMOTE }, + { "local", FORWARD_LOCAL }, + { NULL, -1 } +}; int process_server_config_line(ServerOptions *options, char *line, - const char *filename, int linenum, int *activep, const char *user, - const char *host, const char *address) + const char *filename, int linenum, int *activep, + struct connection_info *connectinfo) { char *cp, **charptr, *arg, *p; - int cmdline = 0, *intptr, value, value2, n; + int cmdline = 0, *intptr, value, value2, n, port; SyslogFacility *log_facility_ptr; LogLevel *log_level_ptr; ServerOpCodes opcode; - int port; u_int i, flags = 0; size_t len; + long long val64; const struct multistate *multistate_ptr; cp = line; @@ -742,7 +863,7 @@ process_server_config_line(ServerOptions *options, char *line, if (*activep && opcode != sMatch) debug3("%s:%d setting %s %s", filename, linenum, arg, cp); if (*activep == 0 && !(flags & SSHCFG_MATCH)) { - if (user == NULL) { + if (connectinfo == NULL) { fatal("%s line %d: Directive '%s' is not allowed " "within a Match block", filename, linenum, arg); } else { /* this is a directive we have already processed */ @@ -880,6 +1001,17 @@ process_server_config_line(ServerOptions *options, char *line, } break; + case sHostKeyAgent: + charptr = &options->host_key_agent; + arg = strdelim(&cp); + if (!arg || *arg == '\0') + fatal("%s line %d: missing socket name.", + filename, linenum); + if (*activep && *charptr == NULL) + *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ? + xstrdup(arg) : derelativise_path(arg); + break; + case sHostCertificate: intptr = &options->num_host_cert_files; if (*intptr >= MAX_HOSTKEYS) @@ -1006,6 +1138,10 @@ process_server_config_line(ServerOptions *options, char *line, charptr = &options->xauth_location; goto parse_filename; + case sPermitTTY: + intptr = &options->permit_tty; + goto parse_flag; + case sStrictModes: intptr = &options->strict_modes; goto parse_flag; @@ -1031,6 +1167,37 @@ process_server_config_line(ServerOptions *options, char *line, multistate_ptr = multistate_compression; goto parse_multistate; + case sRekeyLimit: + arg = strdelim(&cp); + if (!arg || *arg == '\0') + fatal("%.200s line %d: Missing argument.", filename, + linenum); + if (strcmp(arg, "default") == 0) { + val64 = 0; + } else { + if (scan_scaled(arg, &val64) == -1) + fatal("%.200s line %d: Bad number '%s': %s", + filename, linenum, arg, strerror(errno)); + /* check for too-large or too-small limits */ + if (val64 > UINT_MAX) + fatal("%.200s line %d: RekeyLimit too large", + filename, linenum); + if (val64 != 0 && val64 < 16) + fatal("%.200s line %d: RekeyLimit too small", + filename, linenum); + } + if (*activep && options->rekey_limit == -1) + options->rekey_limit = (u_int32_t)val64; + if (cp != NULL) { /* optional rekey interval present */ + if (strcmp(cp, "none") == 0) { + (void)strdelim(&cp); /* discard */ + break; + } + intptr = &options->rekey_interval; + goto parse_time; + } + break; + case sGatewayPorts: intptr = &options->gateway_ports; multistate_ptr = multistate_gatewayports; @@ -1064,7 +1231,8 @@ process_server_config_line(ServerOptions *options, char *line, case sAllowTcpForwarding: intptr = &options->allow_tcp_forwarding; - goto parse_flag; + multistate_ptr = multistate_tcpfwd; + goto parse_multistate; case sAllowAgentForwarding: intptr = &options->allow_agent_forwarding; @@ -1080,6 +1248,8 @@ process_server_config_line(ServerOptions *options, char *line, if (options->num_allow_users >= MAX_ALLOW_USERS) fatal("%s line %d: too many allow users.", filename, linenum); + if (!*activep) + continue; options->allow_users[options->num_allow_users++] = xstrdup(arg); } @@ -1090,6 +1260,8 @@ process_server_config_line(ServerOptions *options, char *line, if (options->num_deny_users >= MAX_DENY_USERS) fatal("%s line %d: too many deny users.", filename, linenum); + if (!*activep) + continue; options->deny_users[options->num_deny_users++] = xstrdup(arg); } @@ -1100,6 +1272,8 @@ process_server_config_line(ServerOptions *options, char *line, if (options->num_allow_groups >= MAX_ALLOW_GROUPS) fatal("%s line %d: too many allow groups.", filename, linenum); + if (!*activep) + continue; options->allow_groups[options->num_allow_groups++] = xstrdup(arg); } @@ -1110,7 +1284,10 @@ process_server_config_line(ServerOptions *options, char *line, if (options->num_deny_groups >= MAX_DENY_GROUPS) fatal("%s line %d: too many deny groups.", filename, linenum); - options->deny_groups[options->num_deny_groups++] = xstrdup(arg); + if (!*activep) + continue; + options->deny_groups[options->num_deny_groups++] = + xstrdup(arg); } break; @@ -1284,7 +1461,7 @@ process_server_config_line(ServerOptions *options, char *line, fatal("%s line %d: too many allow env.", filename, linenum); if (!*activep) - break; + continue; options->accept_env[options->num_accept_env++] = xstrdup(arg); } @@ -1313,7 +1490,7 @@ process_server_config_line(ServerOptions *options, char *line, if (cmdline) fatal("Match directive not supported as a command-line " "option"); - value = match_cfg_line(&cp, linenum, user, host, address); + value = match_cfg_line(&cp, linenum, connectinfo); if (value < 0) fatal("%s line %d: Bad Match condition", filename, linenum); @@ -1333,6 +1510,13 @@ process_server_config_line(ServerOptions *options, char *line, } break; } + if (strcmp(arg, "none") == 0) { + if (*activep && n == -1) { + options->num_permitted_opens = 1; + channel_disable_adm_local_opens(); + } + break; + } if (*activep && n == -1) channel_clear_adm_permitted_opens(); for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) { @@ -1395,6 +1579,59 @@ process_server_config_line(ServerOptions *options, char *line, } break; + case sVersionAddendum: + if (cp == NULL) + fatal("%.200s line %d: Missing argument.", filename, + linenum); + len = strspn(cp, WHITESPACE); + if (*activep && options->version_addendum == NULL) { + if (strcasecmp(cp + len, "none") == 0) + options->version_addendum = xstrdup(""); + else if (strchr(cp + len, '\r') != NULL) + fatal("%.200s line %d: Invalid argument", + filename, linenum); + else + options->version_addendum = xstrdup(cp + len); + } + return 0; + + case sAuthorizedKeysCommand: + len = strspn(cp, WHITESPACE); + if (*activep && options->authorized_keys_command == NULL) { + if (cp[len] != '/' && strcasecmp(cp + len, "none") != 0) + fatal("%.200s line %d: AuthorizedKeysCommand " + "must be an absolute path", + filename, linenum); + options->authorized_keys_command = xstrdup(cp + len); + } + return 0; + + case sAuthorizedKeysCommandUser: + charptr = &options->authorized_keys_command_user; + + arg = strdelim(&cp); + if (*activep && *charptr == NULL) + *charptr = xstrdup(arg); + break; + + case sAuthenticationMethods: + if (*activep && options->num_auth_methods == 0) { + while ((arg = strdelim(&cp)) && *arg != '\0') { + if (options->num_auth_methods >= + MAX_AUTH_METHODS) + fatal("%s line %d: " + "too many authentication methods.", + filename, linenum); + if (auth2_methods_valid(arg, 0) != 0) + fatal("%s line %d: invalid " + "authentication method list.", + filename, linenum); + options->auth_methods[ + options->num_auth_methods++] = xstrdup(arg); + } + } + return 0; + case sDeprecated: logit("%s line %d: Deprecated option %s", filename, linenum, arg); @@ -1424,8 +1661,9 @@ process_server_config_line(ServerOptions *options, char *line, void load_server_config(const char *filename, Buffer *conf) { - char line[1024], *cp; + char line[4096], *cp; FILE *f; + int lineno = 0; debug2("%s: filename %s", __func__, filename); if ((f = fopen(filename, "r")) == NULL) { @@ -1434,6 +1672,9 @@ load_server_config(const char *filename, Buffer *conf) } buffer_clear(conf); while (fgets(line, sizeof(line), f)) { + lineno++; + if (strlen(line) == sizeof(line) - 1) + fatal("%s line %d too long", filename, lineno); /* * Trim out comments and strip whitespace * NB - preserve newlines, they are needed to reproduce @@ -1451,34 +1692,57 @@ load_server_config(const char *filename, Buffer *conf) } void -parse_server_match_config(ServerOptions *options, const char *user, - const char *host, const char *address) +parse_server_match_config(ServerOptions *options, + struct connection_info *connectinfo) { ServerOptions mo; initialize_server_options(&mo); - parse_server_config(&mo, "reprocess config", &cfg, user, host, address); + parse_server_config(&mo, "reprocess config", &cfg, connectinfo); copy_set_server_options(options, &mo, 0); } -/* Helper macros */ -#define M_CP_INTOPT(n) do {\ - if (src->n != -1) \ - dst->n = src->n; \ -} while (0) -#define M_CP_STROPT(n) do {\ - if (src->n != NULL) { \ - if (dst->n != NULL) \ - xfree(dst->n); \ - dst->n = src->n; \ - } \ -} while(0) -#define M_CP_STRARRAYOPT(n, num_n) do {\ - if (src->num_n != 0) { \ - for (dst->num_n = 0; dst->num_n < src->num_n; dst->num_n++) \ - dst->n[dst->num_n] = xstrdup(src->n[dst->num_n]); \ - } \ -} while(0) +int parse_server_match_testspec(struct connection_info *ci, char *spec) +{ + char *p; + + while ((p = strsep(&spec, ",")) && *p != '\0') { + if (strncmp(p, "addr=", 5) == 0) { + ci->address = xstrdup(p + 5); + } else if (strncmp(p, "host=", 5) == 0) { + ci->host = xstrdup(p + 5); + } else if (strncmp(p, "user=", 5) == 0) { + ci->user = xstrdup(p + 5); + } else if (strncmp(p, "laddr=", 6) == 0) { + ci->laddress = xstrdup(p + 6); + } else if (strncmp(p, "lport=", 6) == 0) { + ci->lport = a2port(p + 6); + if (ci->lport == -1) { + fprintf(stderr, "Invalid port '%s' in test mode" + " specification %s\n", p+6, p); + return -1; + } + } else { + fprintf(stderr, "Invalid test mode specification %s\n", + p); + return -1; + } + } + return 0; +} + +/* + * returns 1 for a complete spec, 0 for partial spec and -1 for an + * empty spec. + */ +int server_match_spec_complete(struct connection_info *ci) +{ + if (ci->user && ci->host && ci->address) + return 1; /* complete */ + if (!ci->user && !ci->host && !ci->address) + return -1; /* empty */ + return 0; /* partial */ +} /* * Copy any supported values that are set. @@ -1490,6 +1754,11 @@ parse_server_match_config(ServerOptions *options, const char *user, void copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth) { +#define M_CP_INTOPT(n) do {\ + if (src->n != -1) \ + dst->n = src->n; \ +} while (0) + M_CP_INTOPT(password_authentication); M_CP_INTOPT(gss_authentication); M_CP_INTOPT(rsa_authentication); @@ -1509,10 +1778,27 @@ copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth) M_CP_INTOPT(x11_display_offset); M_CP_INTOPT(x11_forwarding); M_CP_INTOPT(x11_use_localhost); + M_CP_INTOPT(permit_tty); M_CP_INTOPT(max_sessions); M_CP_INTOPT(max_authtries); M_CP_INTOPT(ip_qos_interactive); M_CP_INTOPT(ip_qos_bulk); + M_CP_INTOPT(rekey_limit); + M_CP_INTOPT(rekey_interval); + + /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */ +#define M_CP_STROPT(n) do {\ + if (src->n != NULL && dst->n != src->n) { \ + free(dst->n); \ + dst->n = src->n; \ + } \ +} while(0) +#define M_CP_STRARRAYOPT(n, num_n) do {\ + if (src->num_n != 0) { \ + for (dst->num_n = 0; dst->num_n < src->num_n; dst->num_n++) \ + dst->n[dst->num_n] = xstrdup(src->n[dst->num_n]); \ + } \ +} while(0) /* See comment in servconf.h */ COPY_MATCH_STRING_OPTS(); @@ -1534,7 +1820,7 @@ copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth) void parse_server_config(ServerOptions *options, const char *filename, Buffer *conf, - const char *user, const char *host, const char *address) + struct connection_info *connectinfo) { int active, linenum, bad_options = 0; char *cp, *obuf, *cbuf; @@ -1542,14 +1828,14 @@ parse_server_config(ServerOptions *options, const char *filename, Buffer *conf, debug2("%s: config %s len %d", __func__, filename, buffer_len(conf)); obuf = cbuf = xstrdup(buffer_ptr(conf)); - active = user ? 0 : 1; + active = connectinfo ? 0 : 1; linenum = 1; while ((cp = strsep(&cbuf, "\n")) != NULL) { if (process_server_config_line(options, cp, filename, - linenum++, &active, user, host, address) != 0) + linenum++, &active, connectinfo) != 0) bad_options++; } - xfree(obuf); + free(obuf); if (bad_options > 0) fatal("%s: terminating, %d bad configuration options", filename, bad_options); @@ -1583,6 +1869,8 @@ fmt_intarg(ServerOpCodes code, int val) return fmt_multistate_int(val, multistate_compression); case sUsePrivilegeSeparation: return fmt_multistate_int(val, multistate_privsep); + case sAllowTcpForwarding: + return fmt_multistate_int(val, multistate_tcpfwd); case sProtocol: switch (val) { case SSH_PROTO_1: @@ -1735,6 +2023,7 @@ dump_config(ServerOptions *o) dump_cfg_fmtint(sPrintLastLog, o->print_lastlog); dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding); dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost); + dump_cfg_fmtint(sPermitTTY, o->permit_tty); dump_cfg_fmtint(sStrictModes, o->strict_modes); dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive); dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd); @@ -1749,8 +2038,9 @@ dump_config(ServerOptions *o) /* string arguments */ dump_cfg_string(sPidFile, o->pid_file); dump_cfg_string(sXAuthLocation, o->xauth_location); - dump_cfg_string(sCiphers, o->ciphers); - dump_cfg_string(sMacs, o->macs); + dump_cfg_string(sCiphers, o->ciphers ? o->ciphers : + cipher_alg_list(',', 0)); + dump_cfg_string(sMacs, o->macs ? o->macs : mac_alg_list(',')); dump_cfg_string(sBanner, o->banner); dump_cfg_string(sForceCommand, o->adm_forced_command); dump_cfg_string(sChrootDirectory, o->chroot_directory); @@ -1758,6 +2048,12 @@ dump_config(ServerOptions *o) dump_cfg_string(sRevokedKeys, o->revoked_keys_file); dump_cfg_string(sAuthorizedPrincipalsFile, o->authorized_principals_file); + dump_cfg_string(sVersionAddendum, o->version_addendum); + dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command); + dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user); + dump_cfg_string(sHostKeyAgent, o->host_key_agent); + dump_cfg_string(sKexAlgorithms, o->kex_algorithms ? o->kex_algorithms : + kex_alg_list(',')); /* string arguments requiring a lookup */ dump_cfg_string(sLogLevel, log_level_name(o->log_level)); @@ -1775,6 +2071,8 @@ dump_config(ServerOptions *o) dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups); dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups); dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env); + dump_cfg_strarray_oneline(sAuthenticationMethods, + o->num_auth_methods, o->auth_methods); /* other arguments */ for (i = 0; i < o->num_subsystems; i++) @@ -1794,5 +2092,8 @@ dump_config(ServerOptions *o) printf("ipqos %s ", iptos2str(o->ip_qos_interactive)); printf("%s\n", iptos2str(o->ip_qos_bulk)); + printf("rekeylimit %lld %d\n", (long long)o->rekey_limit, + o->rekey_interval); + channel_print_adm_permitted_opens(); } @@ -1,4 +1,4 @@ -/* $OpenBSD: servconf.h,v 1.99 2011/06/22 21:57:01 djm Exp $ */ +/* $OpenBSD: servconf.h,v 1.111 2013/12/05 01:16:41 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -28,6 +28,7 @@ #define MAX_ACCEPT_ENV 256 /* Max # of env vars. */ #define MAX_MATCH_GROUPS 256 /* Max # of groups for Match. */ #define MAX_AUTHKEYS_FILES 256 /* Max # of authorized_keys files. */ +#define MAX_AUTH_METHODS 256 /* Max # of AuthenticationMethods. */ /* permit_root_login */ #define PERMIT_NOT_SET -1 @@ -39,7 +40,13 @@ /* use_privsep */ #define PRIVSEP_OFF 0 #define PRIVSEP_ON 1 -#define PRIVSEP_SANDBOX 2 +#define PRIVSEP_NOSANDBOX 2 + +/* AllowTCPForwarding */ +#define FORWARD_DENY 0 +#define FORWARD_REMOTE (1) +#define FORWARD_LOCAL (1<<1) +#define FORWARD_ALLOW (FORWARD_REMOTE|FORWARD_LOCAL) #define DEFAULT_AUTH_FAIL_MAX 6 /* Default for MaxAuthTries */ #define DEFAULT_SESSIONS_MAX 10 /* Default for MaxSessions */ @@ -58,6 +65,7 @@ typedef struct { int num_host_key_files; /* Number of files for host keys. */ char *host_cert_files[MAX_HOSTCERTS]; /* Files containing host certs. */ int num_host_cert_files; /* Number of files for host certs. */ + char *host_key_agent; /* ssh-agent socket for host keys. */ char *pid_file; /* Where to put our pid */ int server_key_bits;/* Size of the server key. */ int login_grace_time; /* Disconnect if no auth in this time @@ -74,6 +82,7 @@ typedef struct { * searching at */ int x11_use_localhost; /* If true, use localhost for fake X11 server. */ char *xauth_location; /* Location of xauth program */ + int permit_tty; /* If false, deny pty allocation */ int strict_modes; /* If true, require string home dir modes. */ int tcp_keep_alive; /* If true, set SO_KEEPALIVE. */ int ip_qos_interactive; /* IP ToS/DSCP/class for interactive */ @@ -115,7 +124,7 @@ typedef struct { int permit_user_env; /* If true, read ~/.ssh/environment */ int use_login; /* If true, login(1) is used */ int compression; /* If true, compression is allowed */ - int allow_tcp_forwarding; + int allow_tcp_forwarding; /* One of FORWARD_* */ int allow_agent_forwarding; u_int num_allow_users; char *allow_users[MAX_ALLOW_USERS]; @@ -166,31 +175,64 @@ typedef struct { char *revoked_keys_file; char *trusted_user_ca_keys; char *authorized_principals_file; + char *authorized_keys_command; + char *authorized_keys_command_user; + + int64_t rekey_limit; + int rekey_interval; + + char *version_addendum; /* Appended to SSH banner */ + + u_int num_auth_methods; + char *auth_methods[MAX_AUTH_METHODS]; } ServerOptions; +/* Information about the incoming connection as used by Match */ +struct connection_info { + const char *user; + const char *host; /* possibly resolved hostname */ + const char *address; /* remote address */ + const char *laddress; /* local address */ + int lport; /* local port */ +}; + + /* * These are string config options that must be copied between the * Match sub-config and the main config, and must be sent from the * privsep slave to the privsep master. We use a macro to ensure all * the options are copied and the copies are done in the correct order. + * + * NB. an option must appear in servconf.c:copy_set_server_options() or + * COPY_MATCH_STRING_OPTS here but never both. */ #define COPY_MATCH_STRING_OPTS() do { \ M_CP_STROPT(banner); \ M_CP_STROPT(trusted_user_ca_keys); \ M_CP_STROPT(revoked_keys_file); \ M_CP_STROPT(authorized_principals_file); \ + M_CP_STROPT(authorized_keys_command); \ + M_CP_STROPT(authorized_keys_command_user); \ M_CP_STRARRAYOPT(authorized_keys_files, num_authkeys_files); \ + M_CP_STRARRAYOPT(allow_users, num_allow_users); \ + M_CP_STRARRAYOPT(deny_users, num_deny_users); \ + M_CP_STRARRAYOPT(allow_groups, num_allow_groups); \ + M_CP_STRARRAYOPT(deny_groups, num_deny_groups); \ + M_CP_STRARRAYOPT(accept_env, num_accept_env); \ + M_CP_STRARRAYOPT(auth_methods, num_auth_methods); \ } while (0) +struct connection_info *get_connection_info(int, int); void initialize_server_options(ServerOptions *); void fill_default_server_options(ServerOptions *); int process_server_config_line(ServerOptions *, char *, const char *, int, - int *, const char *, const char *, const char *); + int *, struct connection_info *); void load_server_config(const char *, Buffer *); void parse_server_config(ServerOptions *, const char *, Buffer *, - const char *, const char *, const char *); -void parse_server_match_config(ServerOptions *, const char *, const char *, - const char *); + struct connection_info *); +void parse_server_match_config(ServerOptions *, struct connection_info *); +int parse_server_match_testspec(struct connection_info *, char *); +int server_match_spec_complete(struct connection_info *); void copy_set_server_options(ServerOptions *, ServerOptions *, int); void dump_config(ServerOptions *); char *derelativise_path(const char *); diff --git a/serverloop.c b/serverloop.c index 19b84ff2..5b2f8028 100644 --- a/serverloop.c +++ b/serverloop.c @@ -1,4 +1,4 @@ -/* $OpenBSD: serverloop.c,v 1.160 2011/05/15 08:09:01 djm Exp $ */ +/* $OpenBSD: serverloop.c,v 1.169 2013/12/19 00:19:12 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -148,7 +148,7 @@ static void notify_parent(void) { if (notify_pipe[1] != -1) - write(notify_pipe[1], "", 1); + (void)write(notify_pipe[1], "", 1); } static void notify_prepare(fd_set *readset) @@ -277,13 +277,22 @@ client_alive_check(void) */ static void wait_until_can_do_something(fd_set **readsetp, fd_set **writesetp, int *maxfdp, - u_int *nallocp, u_int max_time_milliseconds) + u_int *nallocp, u_int64_t max_time_milliseconds) { struct timeval tv, *tvp; int ret; + time_t minwait_secs = 0; int client_alive_scheduled = 0; int program_alive_scheduled = 0; + /* Allocate and update select() masks for channel descriptors. */ + channel_prepare_select(readsetp, writesetp, maxfdp, nallocp, + &minwait_secs, 0); + + if (minwait_secs != 0) + max_time_milliseconds = MIN(max_time_milliseconds, + (u_int)minwait_secs * 1000); + /* * if using client_alive, set the max timeout accordingly, * and indicate that this particular timeout was for client @@ -295,12 +304,10 @@ wait_until_can_do_something(fd_set **readsetp, fd_set **writesetp, int *maxfdp, if (compat20 && max_time_milliseconds == 0 && options.client_alive_interval) { client_alive_scheduled = 1; - max_time_milliseconds = options.client_alive_interval * 1000; + max_time_milliseconds = + (u_int64_t)options.client_alive_interval * 1000; } - /* Allocate and update select() masks for channel descriptors. */ - channel_prepare_select(readsetp, writesetp, maxfdp, nallocp, 0); - if (compat20) { #if 0 /* wrong: bad condition XXX */ @@ -557,7 +564,7 @@ server_loop(pid_t pid, int fdin_arg, int fdout_arg, int fderr_arg) int wait_status; /* Status returned by wait(). */ pid_t wait_pid; /* pid returned by wait(). */ int waiting_termination = 0; /* Have displayed waiting close message. */ - u_int max_time_milliseconds; + u_int64_t max_time_milliseconds; u_int previous_stdout_buffer_bytes; u_int stdout_buffer_bytes; int type; @@ -688,7 +695,7 @@ server_loop(pid_t pid, int fdin_arg, int fdout_arg, int fderr_arg) /* Display list of open channels. */ cp = channel_open_message(); buffer_append(&stderr_buffer, cp, strlen(cp)); - xfree(cp); + free(cp); } } max_fd = MAX(connection_in, connection_out); @@ -702,7 +709,7 @@ server_loop(pid_t pid, int fdin_arg, int fdout_arg, int fderr_arg) &nalloc, max_time_milliseconds); if (received_sigterm) { - logit("Exiting on signal %d", received_sigterm); + logit("Exiting on signal %d", (int)received_sigterm); /* Clean up sessions, utmp, etc. */ cleanup_exit(255); } @@ -716,10 +723,8 @@ server_loop(pid_t pid, int fdin_arg, int fdout_arg, int fderr_arg) /* Process output to the client and to program stdin. */ process_output(writeset); } - if (readset) - xfree(readset); - if (writeset) - xfree(writeset); + free(readset); + free(writeset); /* Cleanup and termination code. */ @@ -819,7 +824,9 @@ void server_loop2(Authctxt *authctxt) { fd_set *readset = NULL, *writeset = NULL; - int rekeying = 0, max_fd, nalloc = 0; + int rekeying = 0, max_fd; + u_int nalloc = 0; + u_int64_t rekey_timeout_ms = 0; debug("Entering interactive session for SSH2."); @@ -848,11 +855,16 @@ server_loop2(Authctxt *authctxt) if (!rekeying && packet_not_very_much_data_to_write()) channel_output_poll(); + if (options.rekey_interval > 0 && compat20 && !rekeying) + rekey_timeout_ms = packet_get_rekey_timeout() * 1000; + else + rekey_timeout_ms = 0; + wait_until_can_do_something(&readset, &writeset, &max_fd, - &nalloc, 0); + &nalloc, rekey_timeout_ms); if (received_sigterm) { - logit("Exiting on signal %d", received_sigterm); + logit("Exiting on signal %d", (int)received_sigterm); /* Clean up sessions, utmp, etc. */ cleanup_exit(255); } @@ -873,10 +885,8 @@ server_loop2(Authctxt *authctxt) } collect_children(); - if (readset) - xfree(readset); - if (writeset) - xfree(writeset); + free(readset); + free(writeset); /* free all channels, no more reads and writes */ channel_free_all(); @@ -911,7 +921,7 @@ server_input_stdin_data(int type, u_int32_t seq, void *ctxt) packet_check_eom(); buffer_append(&stdin_buffer, data, data_len); memset(data, 0, data_len); - xfree(data); + free(data); } static void @@ -944,7 +954,7 @@ server_input_window_size(int type, u_int32_t seq, void *ctxt) static Channel * server_request_direct_tcpip(void) { - Channel *c; + Channel *c = NULL; char *target, *originator; u_short target_port, originator_port; @@ -957,12 +967,19 @@ server_request_direct_tcpip(void) debug("server_request_direct_tcpip: originator %s port %d, target %s " "port %d", originator, originator_port, target, target_port); - /* XXX check permission */ - c = channel_connect_to(target, target_port, - "direct-tcpip", "direct-tcpip"); + /* XXX fine grained permissions */ + if ((options.allow_tcp_forwarding & FORWARD_LOCAL) != 0 && + !no_port_forwarding_flag) { + c = channel_connect_to(target, target_port, + "direct-tcpip", "direct-tcpip"); + } else { + logit("refused local port forward: " + "originator %s port %d, target %s port %d", + originator, originator_port, target, target_port); + } - xfree(originator); - xfree(target); + free(originator); + free(target); return c; } @@ -1091,7 +1108,7 @@ server_input_channel_open(int type, u_int32_t seq, void *ctxt) } packet_send(); } - xfree(ctype); + free(ctype); } static void @@ -1120,7 +1137,7 @@ server_input_global_request(int type, u_int32_t seq, void *ctxt) listen_address, listen_port); /* check permissions */ - if (!options.allow_tcp_forwarding || + if ((options.allow_tcp_forwarding & FORWARD_REMOTE) == 0 || no_port_forwarding_flag || (!want_reply && listen_port == 0) #ifndef NO_IPPORT_RESERVED_CONCEPT @@ -1136,7 +1153,7 @@ server_input_global_request(int type, u_int32_t seq, void *ctxt) listen_address, listen_port, &allocated_listen_port, options.gateway_ports); } - xfree(listen_address); + free(listen_address); } else if (strcmp(rtype, "cancel-tcpip-forward") == 0) { char *cancel_address; u_short cancel_port; @@ -1148,7 +1165,7 @@ server_input_global_request(int type, u_int32_t seq, void *ctxt) success = channel_cancel_rport_listener(cancel_address, cancel_port); - xfree(cancel_address); + free(cancel_address); } else if (strcmp(rtype, "no-more-sessions@openssh.com") == 0) { no_more_sessions = 1; success = 1; @@ -1161,7 +1178,7 @@ server_input_global_request(int type, u_int32_t seq, void *ctxt) packet_send(); packet_write_wait(); } - xfree(rtype); + free(rtype); } static void @@ -1193,7 +1210,7 @@ server_input_channel_req(int type, u_int32_t seq, void *ctxt) packet_put_int(c->remote_id); packet_send(); } - xfree(rtype); + free(rtype); } static void @@ -1,4 +1,4 @@ -/* $OpenBSD: session.c,v 1.259 2011/10/24 02:13:13 djm Exp $ */ +/* $OpenBSD: session.c,v 1.269 2014/01/18 09:36:26 dtucker Exp $ */ /* * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland * All rights reserved @@ -80,6 +80,7 @@ #include "hostfile.h" #include "auth.h" #include "auth-options.h" +#include "authfd.h" #include "pathnames.h" #include "log.h" #include "servconf.h" @@ -199,7 +200,7 @@ auth_input_request_forwarding(struct passwd * pw) packet_send_debug("Agent forwarding disabled: " "mkdtemp() failed: %.100s", strerror(errno)); restore_uid(); - xfree(auth_sock_dir); + free(auth_sock_dir); auth_sock_dir = NULL; goto authsock_err; } @@ -244,11 +245,10 @@ auth_input_request_forwarding(struct passwd * pw) return 1; authsock_err: - if (auth_sock_name != NULL) - xfree(auth_sock_name); + free(auth_sock_name); if (auth_sock_dir != NULL) { rmdir(auth_sock_dir); - xfree(auth_sock_dir); + free(auth_sock_dir); } if (sock != -1) close(sock); @@ -273,7 +273,10 @@ do_authenticated(Authctxt *authctxt) setproctitle("%s", authctxt->pw->pw_name); /* setup the channel layer */ - if (!no_port_forwarding_flag && options.allow_tcp_forwarding) + if (no_port_forwarding_flag || + (options.allow_tcp_forwarding & FORWARD_LOCAL) == 0) + channel_disable_adm_local_opens(); + else channel_permit_all_opens(); auth_debug_send(); @@ -361,8 +364,8 @@ do_authenticated1(Authctxt *authctxt) packet_check_eom(); success = session_setup_x11fwd(s); if (!success) { - xfree(s->auth_proto); - xfree(s->auth_data); + free(s->auth_proto); + free(s->auth_data); s->auth_proto = NULL; s->auth_data = NULL; } @@ -383,7 +386,7 @@ do_authenticated1(Authctxt *authctxt) debug("Port forwarding not permitted for this authentication."); break; } - if (!options.allow_tcp_forwarding) { + if (!(options.allow_tcp_forwarding & FORWARD_REMOTE)) { debug("Port forwarding not permitted."); break; } @@ -409,7 +412,7 @@ do_authenticated1(Authctxt *authctxt) if (do_exec(s, command) != 0) packet_disconnect( "command execution failed"); - xfree(command); + free(command); } else { if (do_exec(s, NULL) != 0) packet_disconnect( @@ -438,7 +441,7 @@ do_authenticated1(Authctxt *authctxt) } } -#define USE_PIPES +#define USE_PIPES 1 /* * This is called to fork and execute a command when we have no tty. This * will call do_child from the child, and server_loop from the parent after @@ -791,27 +794,50 @@ int do_exec(Session *s, const char *command) { int ret; + const char *forced = NULL; + char session_type[1024], *tty = NULL; if (options.adm_forced_command) { original_command = command; command = options.adm_forced_command; - if (IS_INTERNAL_SFTP(command)) { - s->is_subsystem = s->is_subsystem ? - SUBSYSTEM_INT_SFTP : SUBSYSTEM_INT_SFTP_ERROR; - } else if (s->is_subsystem) - s->is_subsystem = SUBSYSTEM_EXT; - debug("Forced command (config) '%.900s'", command); + forced = "(config)"; } else if (forced_command) { original_command = command; command = forced_command; + forced = "(key-option)"; + } + if (forced != NULL) { if (IS_INTERNAL_SFTP(command)) { s->is_subsystem = s->is_subsystem ? SUBSYSTEM_INT_SFTP : SUBSYSTEM_INT_SFTP_ERROR; } else if (s->is_subsystem) s->is_subsystem = SUBSYSTEM_EXT; - debug("Forced command (key option) '%.900s'", command); + snprintf(session_type, sizeof(session_type), + "forced-command %s '%.900s'", forced, command); + } else if (s->is_subsystem) { + snprintf(session_type, sizeof(session_type), + "subsystem '%.900s'", s->subsys); + } else if (command == NULL) { + snprintf(session_type, sizeof(session_type), "shell"); + } else { + /* NB. we don't log unforced commands to preserve privacy */ + snprintf(session_type, sizeof(session_type), "command"); + } + + if (s->ttyfd != -1) { + tty = s->tty; + if (strncmp(tty, "/dev/", 5) == 0) + tty += 5; } + verbose("Starting session: %s%s%s for %s from %.200s port %d", + session_type, + tty == NULL ? "" : " on ", + tty == NULL ? "" : tty, + s->pw->pw_name, + get_remote_ipaddr(), + get_remote_port()); + #ifdef SSH_AUDIT_EVENTS if (command != NULL) PRIVSEP(audit_run_command(command)); @@ -974,7 +1000,7 @@ child_set_env(char ***envp, u_int *envsizep, const char *name, break; if (env[i]) { /* Reuse the slot. */ - xfree(env[i]); + free(env[i]); } else { /* New variable. Expand if necessary. */ envsize = *envsizep; @@ -1090,8 +1116,8 @@ read_etc_default_login(char ***env, u_int *envsize, uid_t uid) umask((mode_t)mask); for (i = 0; tmpenv[i] != NULL; i++) - xfree(tmpenv[i]); - xfree(tmpenv); + free(tmpenv[i]); + free(tmpenv); } #endif /* HAVE_ETC_DEFAULT_LOGIN */ @@ -1107,7 +1133,7 @@ copy_environment(char **source, char ***env, u_int *envsize) for(i = 0; source[i] != NULL; i++) { var_name = xstrdup(source[i]); if ((var_val = strstr(var_name, "=")) == NULL) { - xfree(var_name); + free(var_name); continue; } *var_val++ = '\0'; @@ -1115,7 +1141,7 @@ copy_environment(char **source, char ***env, u_int *envsize) debug3("Copy environment: %s=%s", var_name, var_val); child_set_env(env, envsize, var_name, var_val); - xfree(var_name); + free(var_name); } } @@ -1216,8 +1242,8 @@ do_setup_env(Session *s, const char *shell) child_set_env(&env, &envsize, str, str + i + 1); } custom_environment = ce->next; - xfree(ce->s); - xfree(ce); + free(ce->s); + free(ce); } } @@ -1229,7 +1255,7 @@ do_setup_env(Session *s, const char *shell) laddr = get_local_ipaddr(packet_get_connection_in()); snprintf(buf, sizeof buf, "%.50s %d %.50s %d", get_remote_ipaddr(), get_remote_port(), laddr, get_local_port()); - xfree(laddr); + free(laddr); child_set_env(&env, &envsize, "SSH_CONNECTION", buf); if (s->ttyfd != -1) @@ -1390,7 +1416,7 @@ do_nologin(struct passwd *pw) struct stat sb; #ifdef HAVE_LOGIN_CAP - if (login_getcapbool(lc, "ignorenologin", 0) && pw->pw_uid) + if (login_getcapbool(lc, "ignorenologin", 0) || pw->pw_uid == 0) return; nl = login_getcapstr(lc, "nologin", def_nl, def_nl); #else @@ -1400,7 +1426,7 @@ do_nologin(struct passwd *pw) #endif if (stat(nl, &sb) == -1) { if (nl != def_nl) - xfree(nl); + free(nl); return; } @@ -1510,6 +1536,9 @@ do_setusercontext(struct passwd *pw) safely_chroot(chroot_path, pw->pw_uid); free(tmp); free(chroot_path); + /* Make sure we don't attempt to chroot again */ + free(options.chroot_directory); + options.chroot_directory = NULL; } #ifdef HAVE_LOGIN_CAP @@ -1517,10 +1546,23 @@ do_setusercontext(struct passwd *pw) perror("unable to set user context (setuser)"); exit(1); } + /* + * FreeBSD's setusercontext() will not apply the user's + * own umask setting unless running with the user's UID. + */ + (void) setusercontext(lc, pw, pw->pw_uid, LOGIN_SETUMASK); #else +# ifdef USE_LIBIAF + if (set_id(pw->pw_name) != 0) { + fatal("set_id(%s) Failed", pw->pw_name); + } +# endif /* USE_LIBIAF */ /* Permanently switch to the desired uid. */ permanently_set_uid(pw); #endif + } else if (options.chroot_directory != NULL && + strcasecmp(options.chroot_directory, "none") != 0) { + fatal("server lacks privileges to chroot to ChrootDirectory"); } if (getuid() != pw->pw_uid || geteuid() != pw->pw_uid) @@ -1576,6 +1618,13 @@ launch_login(struct passwd *pw, const char *hostname) static void child_close_fds(void) { + extern AuthenticationConnection *auth_conn; + + if (auth_conn) { + ssh_close_authentication_connection(auth_conn); + auth_conn = NULL; + } + if (packet_get_connection_in() == packet_get_connection_out()) close(packet_get_connection_in()); else { @@ -2018,7 +2067,7 @@ session_pty_req(Session *s) u_int len; int n_bytes; - if (no_pty_flag) { + if (no_pty_flag || !options.permit_tty) { debug("Allocating a pty not permitted for this authentication."); return 0; } @@ -2040,7 +2089,7 @@ session_pty_req(Session *s) s->ypixel = packet_get_int(); if (strcmp(s->term, "") == 0) { - xfree(s->term); + free(s->term); s->term = NULL; } @@ -2048,8 +2097,7 @@ session_pty_req(Session *s) debug("Allocating pty."); if (!PRIVSEP(pty_allocate(&s->ptyfd, &s->ttyfd, s->tty, sizeof(s->tty)))) { - if (s->term) - xfree(s->term); + free(s->term); s->term = NULL; s->ptyfd = -1; s->ttyfd = -1; @@ -2080,15 +2128,16 @@ session_subsystem_req(Session *s) struct stat st; u_int len; int success = 0; - char *prog, *cmd, *subsys = packet_get_string(&len); + char *prog, *cmd; u_int i; + s->subsys = packet_get_string(&len); packet_check_eom(); - logit("subsystem request for %.100s by user %s", subsys, + debug2("subsystem request for %.100s by user %s", s->subsys, s->pw->pw_name); for (i = 0; i < options.num_subsystems; i++) { - if (strcmp(subsys, options.subsystem_name[i]) == 0) { + if (strcmp(s->subsys, options.subsystem_name[i]) == 0) { prog = options.subsystem_command[i]; cmd = options.subsystem_args[i]; if (strcmp(INTERNAL_SFTP_NAME, prog) == 0) { @@ -2107,10 +2156,9 @@ session_subsystem_req(Session *s) } if (!success) - logit("subsystem request for %.100s failed, subsystem not found", - subsys); + logit("subsystem request for %.100s by user %s failed, " + "subsystem not found", s->subsys, s->pw->pw_name); - xfree(subsys); return success; } @@ -2132,8 +2180,8 @@ session_x11_req(Session *s) success = session_setup_x11fwd(s); if (!success) { - xfree(s->auth_proto); - xfree(s->auth_data); + free(s->auth_proto); + free(s->auth_data); s->auth_proto = NULL; s->auth_data = NULL; } @@ -2155,7 +2203,7 @@ session_exec_req(Session *s) char *command = packet_get_string(&len); packet_check_eom(); success = do_exec(s, command) == 0; - xfree(command); + free(command); return success; } @@ -2201,8 +2249,8 @@ session_env_req(Session *s) debug2("Ignoring env request %s: disallowed name", name); fail: - xfree(name); - xfree(val); + free(name); + free(val); return (0); } @@ -2384,24 +2432,16 @@ session_close_single_x11(int id, void *arg) if (s->x11_chanids[i] != id) session_close_x11(s->x11_chanids[i]); } - xfree(s->x11_chanids); + free(s->x11_chanids); s->x11_chanids = NULL; - if (s->display) { - xfree(s->display); - s->display = NULL; - } - if (s->auth_proto) { - xfree(s->auth_proto); - s->auth_proto = NULL; - } - if (s->auth_data) { - xfree(s->auth_data); - s->auth_data = NULL; - } - if (s->auth_display) { - xfree(s->auth_display); - s->auth_display = NULL; - } + free(s->display); + s->display = NULL; + free(s->auth_proto); + s->auth_proto = NULL; + free(s->auth_data); + s->auth_data = NULL; + free(s->auth_display); + s->auth_display = NULL; } static void @@ -2463,24 +2503,19 @@ session_close(Session *s) debug("session_close: session %d pid %ld", s->self, (long)s->pid); if (s->ttyfd != -1) session_pty_cleanup(s); - if (s->term) - xfree(s->term); - if (s->display) - xfree(s->display); - if (s->x11_chanids) - xfree(s->x11_chanids); - if (s->auth_display) - xfree(s->auth_display); - if (s->auth_data) - xfree(s->auth_data); - if (s->auth_proto) - xfree(s->auth_proto); + free(s->term); + free(s->display); + free(s->x11_chanids); + free(s->auth_display); + free(s->auth_data); + free(s->auth_proto); + free(s->subsys); if (s->env != NULL) { for (i = 0; i < s->num_env; i++) { - xfree(s->env[i].name); - xfree(s->env[i].val); + free(s->env[i].name); + free(s->env[i].val); } - xfree(s->env); + free(s->env); } session_proctitle(s); session_unused(s->self); @@ -1,4 +1,4 @@ -/* $OpenBSD: session.h,v 1.30 2008/05/08 12:21:16 djm Exp $ */ +/* $OpenBSD: session.h,v 1.31 2013/10/14 21:20:52 djm Exp $ */ /* * Copyright (c) 2000, 2001 Markus Friedl. All rights reserved. @@ -55,6 +55,7 @@ struct Session { int chanid; int *x11_chanids; int is_subsystem; + char *subsys; u_int num_env; struct { char *name; diff --git a/sftp-client.c b/sftp-client.c index d7eff70b..fc035f2e 100644 --- a/sftp-client.c +++ b/sftp-client.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sftp-client.c,v 1.96 2011/09/12 08:46:15 markus Exp $ */ +/* $OpenBSD: sftp-client.c,v 1.113 2014/01/17 00:21:06 djm Exp $ */ /* * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> * @@ -42,6 +42,7 @@ #include <signal.h> #include <stdarg.h> #include <stdio.h> +#include <stdlib.h> #include <string.h> #include <unistd.h> @@ -76,6 +77,7 @@ struct sftp_conn { #define SFTP_EXT_STATVFS 0x00000002 #define SFTP_EXT_FSTATVFS 0x00000004 #define SFTP_EXT_HARDLINK 0x00000008 +#define SFTP_EXT_FSYNC 0x00000010 u_int exts; u_int64_t limit_kbps; struct bwlimit bwlimit_in, bwlimit_out; @@ -112,7 +114,7 @@ send_msg(struct sftp_conn *conn, Buffer *m) iov[1].iov_len = buffer_len(m); if (atomiciov6(writev, conn->fd_out, iov, 2, - conn->limit_kbps > 0 ? sftpio : NULL, &conn->bwlimit_out) != + conn->limit_kbps > 0 ? sftpio : NULL, &conn->bwlimit_out) != buffer_len(m) + sizeof(mlen)) fatal("Couldn't send packet: %s", strerror(errno)); @@ -337,7 +339,8 @@ do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests, Buffer msg; struct sftp_conn *ret; - ret = xmalloc(sizeof(*ret)); + ret = xcalloc(1, sizeof(*ret)); + ret->msg_id = 1; ret->fd_in = fd_in; ret->fd_out = fd_out; ret->transfer_buflen = transfer_buflen; @@ -387,6 +390,10 @@ do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests, strcmp(value, "1") == 0) { ret->exts |= SFTP_EXT_HARDLINK; known = 1; + } else if (strcmp(name, "fsync@openssh.com") == 0 && + strcmp(value, "1") == 0) { + ret->exts |= SFTP_EXT_FSYNC; + known = 1; } if (known) { debug2("Server supports extension \"%s\" revision %s", @@ -394,8 +401,8 @@ do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests, } else { debug2("Unrecognised server extension \"%s\"", name); } - xfree(name); - xfree(value); + free(name); + free(value); } buffer_free(&msg); @@ -447,12 +454,16 @@ do_close(struct sftp_conn *conn, char *handle, u_int handle_len) static int -do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, +do_lsreaddir(struct sftp_conn *conn, char *path, int print_flag, SFTP_DIRENT ***dir) { Buffer msg; u_int count, type, id, handle_len, i, expected_id, ents = 0; char *handle; + int status = SSH2_FX_FAILURE; + + if (dir) + *dir = NULL; id = conn->msg_id++; @@ -471,7 +482,7 @@ do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, if (dir) { ents = 0; - *dir = xmalloc(sizeof(**dir)); + *dir = xcalloc(1, sizeof(**dir)); (*dir)[0] = NULL; } @@ -499,20 +510,12 @@ do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, fatal("ID mismatch (%u != %u)", id, expected_id); if (type == SSH2_FXP_STATUS) { - int status = buffer_get_int(&msg); - + status = buffer_get_int(&msg); debug3("Received SSH2_FXP_STATUS %d", status); - - if (status == SSH2_FX_EOF) { + if (status == SSH2_FX_EOF) break; - } else { - error("Couldn't read directory: %s", - fx2txt(status)); - do_close(conn, handle, handle_len); - xfree(handle); - buffer_free(&msg); - return(status); - } + error("Couldn't read directory: %s", fx2txt(status)); + goto out; } else if (type != SSH2_FXP_NAME) fatal("Expected SSH2_FXP_NAME(%u) packet, got %u", SSH2_FXP_NAME, type); @@ -529,7 +532,7 @@ do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, longname = buffer_get_string(&msg, NULL); a = decode_attrib(&msg); - if (printflag) + if (print_flag) printf("%s\n", longname); /* @@ -540,35 +543,37 @@ do_lsreaddir(struct sftp_conn *conn, char *path, int printflag, if (strchr(filename, '/') != NULL) { error("Server sent suspect path \"%s\" " "during readdir of \"%s\"", filename, path); - goto next; - } - - if (dir) { + } else if (dir) { *dir = xrealloc(*dir, ents + 2, sizeof(**dir)); - (*dir)[ents] = xmalloc(sizeof(***dir)); + (*dir)[ents] = xcalloc(1, sizeof(***dir)); (*dir)[ents]->filename = xstrdup(filename); (*dir)[ents]->longname = xstrdup(longname); memcpy(&(*dir)[ents]->a, a, sizeof(*a)); (*dir)[++ents] = NULL; } - next: - xfree(filename); - xfree(longname); + free(filename); + free(longname); } } + status = 0; + out: buffer_free(&msg); do_close(conn, handle, handle_len); - xfree(handle); + free(handle); - /* Don't return partial matches on interrupt */ - if (interrupted && dir != NULL && *dir != NULL) { + if (status != 0 && dir != NULL) { + /* Don't return results on error */ + free_sftp_dirents(*dir); + *dir = NULL; + } else if (interrupted && dir != NULL && *dir != NULL) { + /* Don't return partial matches on interrupt */ free_sftp_dirents(*dir); - *dir = xmalloc(sizeof(**dir)); + *dir = xcalloc(1, sizeof(**dir)); **dir = NULL; } - return 0; + return status; } int @@ -581,12 +586,14 @@ void free_sftp_dirents(SFTP_DIRENT **s) { int i; + if (s == NULL) + return; for (i = 0; s[i]; i++) { - xfree(s[i]->filename); - xfree(s[i]->longname); - xfree(s[i]); + free(s[i]->filename); + free(s[i]->longname); + free(s[i]); } - xfree(s); + free(s); } int @@ -605,7 +612,7 @@ do_rm(struct sftp_conn *conn, char *path) } int -do_mkdir(struct sftp_conn *conn, char *path, Attrib *a, int printflag) +do_mkdir(struct sftp_conn *conn, char *path, Attrib *a, int print_flag) { u_int status, id; @@ -614,7 +621,7 @@ do_mkdir(struct sftp_conn *conn, char *path, Attrib *a, int printflag) strlen(path), a); status = get_status(conn, id); - if (status != SSH2_FX_OK && printflag) + if (status != SSH2_FX_OK && print_flag) error("Couldn't create directory: %s", fx2txt(status)); return(status); @@ -742,7 +749,7 @@ do_realpath(struct sftp_conn *conn, char *path) if (type == SSH2_FXP_STATUS) { u_int status = buffer_get_int(&msg); - error("Couldn't canonicalise: %s", fx2txt(status)); + error("Couldn't canonicalize: %s", fx2txt(status)); buffer_free(&msg); return NULL; } else if (type != SSH2_FXP_NAME) @@ -757,9 +764,10 @@ do_realpath(struct sftp_conn *conn, char *path) longname = buffer_get_string(&msg, NULL); a = decode_attrib(&msg); - debug3("SSH_FXP_REALPATH %s -> %s", path, filename); + debug3("SSH_FXP_REALPATH %s -> %s size %lu", path, filename, + (unsigned long)a->size); - xfree(longname); + free(longname); buffer_free(&msg); @@ -767,16 +775,18 @@ do_realpath(struct sftp_conn *conn, char *path) } int -do_rename(struct sftp_conn *conn, char *oldpath, char *newpath) +do_rename(struct sftp_conn *conn, char *oldpath, char *newpath, + int force_legacy) { Buffer msg; u_int status, id; + int use_ext = (conn->exts & SFTP_EXT_POSIX_RENAME) && !force_legacy; buffer_init(&msg); /* Send rename request */ id = conn->msg_id++; - if ((conn->exts & SFTP_EXT_POSIX_RENAME)) { + if (use_ext) { buffer_put_char(&msg, SSH2_FXP_EXTENDED); buffer_put_int(&msg, id); buffer_put_cstring(&msg, "posix-rename@openssh.com"); @@ -788,8 +798,8 @@ do_rename(struct sftp_conn *conn, char *oldpath, char *newpath) buffer_put_cstring(&msg, newpath); send_msg(conn, &msg); debug3("Sent message %s \"%s\" -> \"%s\"", - (conn->exts & SFTP_EXT_POSIX_RENAME) ? "posix-rename@openssh.com" : - "SSH2_FXP_RENAME", oldpath, newpath); + use_ext ? "posix-rename@openssh.com" : "SSH2_FXP_RENAME", + oldpath, newpath); buffer_free(&msg); status = get_status(conn, id); @@ -865,6 +875,36 @@ do_symlink(struct sftp_conn *conn, char *oldpath, char *newpath) return(status); } +int +do_fsync(struct sftp_conn *conn, char *handle, u_int handle_len) +{ + Buffer msg; + u_int status, id; + + /* Silently return if the extension is not supported */ + if ((conn->exts & SFTP_EXT_FSYNC) == 0) + return -1; + + buffer_init(&msg); + + /* Send fsync request */ + id = conn->msg_id++; + + buffer_put_char(&msg, SSH2_FXP_EXTENDED); + buffer_put_int(&msg, id); + buffer_put_cstring(&msg, "fsync@openssh.com"); + buffer_put_string(&msg, handle, handle_len); + send_msg(conn, &msg); + debug3("Sent message fsync@openssh.com I:%u", id); + buffer_free(&msg); + + status = get_status(conn, id); + if (status != SSH2_FX_OK) + error("Couldn't sync file: %s", fx2txt(status)); + + return status; +} + #ifdef notyet char * do_readlink(struct sftp_conn *conn, char *path) @@ -906,7 +946,7 @@ do_readlink(struct sftp_conn *conn, char *path) debug3("SSH_FXP_READLINK %s -> %s", path, filename); - xfree(longname); + free(longname); buffer_free(&msg); @@ -987,16 +1027,17 @@ send_read_request(struct sftp_conn *conn, u_int id, u_int64_t offset, int do_download(struct sftp_conn *conn, char *remote_path, char *local_path, - Attrib *a, int pflag) + Attrib *a, int preserve_flag, int resume_flag, int fsync_flag) { Attrib junk; Buffer msg; char *handle; - int local_fd, status = 0, write_error; - int read_error, write_errno; - u_int64_t offset, size; + int local_fd = -1, status = 0, write_error; + int read_error, write_errno, reordered = 0; + u_int64_t offset = 0, size, highwater; u_int handle_len, mode, type, id, buflen, num_req, max_req; off_t progress_counter; + struct stat st; struct request { u_int id; u_int len; @@ -1049,21 +1090,42 @@ do_download(struct sftp_conn *conn, char *remote_path, char *local_path, return(-1); } - local_fd = open(local_path, O_WRONLY | O_CREAT | O_TRUNC, - mode | S_IWRITE); + local_fd = open(local_path, + O_WRONLY | O_CREAT | (resume_flag ? 0 : O_TRUNC), mode | S_IWUSR); if (local_fd == -1) { error("Couldn't open local file \"%s\" for writing: %s", local_path, strerror(errno)); - do_close(conn, handle, handle_len); - buffer_free(&msg); - xfree(handle); - return(-1); + goto fail; + } + offset = highwater = 0; + if (resume_flag) { + if (fstat(local_fd, &st) == -1) { + error("Unable to stat local file \"%s\": %s", + local_path, strerror(errno)); + goto fail; + } + if (st.st_size < 0) { + error("\"%s\" has negative size", local_path); + goto fail; + } + if ((u_int64_t)st.st_size > size) { + error("Unable to resume download of \"%s\": " + "local file is larger than remote", local_path); + fail: + do_close(conn, handle, handle_len); + buffer_free(&msg); + free(handle); + if (local_fd != -1) + close(local_fd); + return -1; + } + offset = highwater = st.st_size; } /* Read from remote and write to local */ - write_error = read_error = write_errno = num_req = offset = 0; + write_error = read_error = write_errno = num_req = 0; max_req = 1; - progress_counter = 0; + progress_counter = offset; if (showprogress && size != 0) start_progress_meter(remote_path, size, &progress_counter); @@ -1088,7 +1150,7 @@ do_download(struct sftp_conn *conn, char *remote_path, char *local_path, (unsigned long long)offset, (unsigned long long)offset + buflen - 1, num_req, max_req); - req = xmalloc(sizeof(*req)); + req = xcalloc(1, sizeof(*req)); req->id = conn->msg_id++; req->len = buflen; req->offset = offset; @@ -1120,7 +1182,7 @@ do_download(struct sftp_conn *conn, char *remote_path, char *local_path, read_error = 1; max_req = 0; TAILQ_REMOVE(&requests, req, tq); - xfree(req); + free(req); num_req--; break; case SSH2_FXP_DATA: @@ -1138,12 +1200,16 @@ do_download(struct sftp_conn *conn, char *remote_path, char *local_path, write_error = 1; max_req = 0; } + else if (!reordered && req->offset <= highwater) + highwater = req->offset + len; + else if (!reordered && req->offset > highwater) + reordered = 1; progress_counter += len; - xfree(data); + free(data); if (len == req->len) { TAILQ_REMOVE(&requests, req, tq); - xfree(req); + free(req); num_req--; } else { /* Resend the request for the missing data */ @@ -1186,10 +1252,19 @@ do_download(struct sftp_conn *conn, char *remote_path, char *local_path, /* Sanity check */ if (TAILQ_FIRST(&requests) != NULL) fatal("Transfer complete, but requests still in queue"); - + /* Truncate at highest contiguous point to avoid holes on interrupt */ + if (read_error || write_error || interrupted) { + if (reordered && resume_flag) { + error("Unable to resume download of \"%s\": " + "server reordered requests", local_path); + } + debug("truncating at %llu", (unsigned long long)highwater); + ftruncate(local_fd, highwater); + } if (read_error) { error("Couldn't read from remote file \"%s\" : %s", remote_path, fx2txt(status)); + status = -1; do_close(conn, handle, handle_len); } else if (write_error) { error("Couldn't write to \"%s\": %s", local_path, @@ -1198,16 +1273,18 @@ do_download(struct sftp_conn *conn, char *remote_path, char *local_path, do_close(conn, handle, handle_len); } else { status = do_close(conn, handle, handle_len); - + if (interrupted || status != SSH2_FX_OK) + status = -1; /* Override umask and utimes if asked */ #ifdef HAVE_FCHMOD - if (pflag && fchmod(local_fd, mode) == -1) + if (preserve_flag && fchmod(local_fd, mode) == -1) #else - if (pflag && chmod(local_path, mode) == -1) + if (preserve_flag && chmod(local_path, mode) == -1) #endif /* HAVE_FCHMOD */ error("Couldn't set mode on \"%s\": %s", local_path, strerror(errno)); - if (pflag && (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) { + if (preserve_flag && + (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME)) { struct timeval tv[2]; tv[0].tv_sec = a->atime; tv[1].tv_sec = a->mtime; @@ -1216,17 +1293,24 @@ do_download(struct sftp_conn *conn, char *remote_path, char *local_path, error("Can't set times on \"%s\": %s", local_path, strerror(errno)); } + if (fsync_flag) { + debug("syncing \"%s\"", local_path); + if (fsync(local_fd) == -1) + error("Couldn't sync file \"%s\": %s", + local_path, strerror(errno)); + } } close(local_fd); buffer_free(&msg); - xfree(handle); + free(handle); return(status); } static int -download_dir_internal(struct sftp_conn *conn, char *src, char *dst, - Attrib *dirattrib, int pflag, int printflag, int depth) +download_dir_internal(struct sftp_conn *conn, char *src, char *dst, int depth, + Attrib *dirattrib, int preserve_flag, int print_flag, int resume_flag, + int fsync_flag) { int i, ret = 0; SFTP_DIRENT **dir_entries; @@ -1247,7 +1331,7 @@ download_dir_internal(struct sftp_conn *conn, char *src, char *dst, error("\"%s\" is not a directory", src); return -1; } - if (printflag) + if (print_flag) printf("Retrieving %s\n", src); if (dirattrib->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) @@ -1278,12 +1362,13 @@ download_dir_internal(struct sftp_conn *conn, char *src, char *dst, strcmp(filename, "..") == 0) continue; if (download_dir_internal(conn, new_src, new_dst, - &(dir_entries[i]->a), pflag, printflag, - depth + 1) == -1) + depth + 1, &(dir_entries[i]->a), preserve_flag, + print_flag, resume_flag, fsync_flag) == -1) ret = -1; } else if (S_ISREG(dir_entries[i]->a.perm) ) { if (do_download(conn, new_src, new_dst, - &(dir_entries[i]->a), pflag) == -1) { + &(dir_entries[i]->a), preserve_flag, + resume_flag, fsync_flag) == -1) { error("Download of file %s to %s failed", new_src, new_dst); ret = -1; @@ -1291,11 +1376,11 @@ download_dir_internal(struct sftp_conn *conn, char *src, char *dst, } else logit("%s: not a regular file\n", new_src); - xfree(new_dst); - xfree(new_src); + free(new_dst); + free(new_src); } - if (pflag) { + if (preserve_flag) { if (dirattrib->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { struct timeval tv[2]; tv[0].tv_sec = dirattrib->atime; @@ -1316,30 +1401,31 @@ download_dir_internal(struct sftp_conn *conn, char *src, char *dst, int download_dir(struct sftp_conn *conn, char *src, char *dst, - Attrib *dirattrib, int pflag, int printflag) + Attrib *dirattrib, int preserve_flag, int print_flag, + int resume_flag, int fsync_flag) { char *src_canon; int ret; if ((src_canon = do_realpath(conn, src)) == NULL) { - error("Unable to canonicalise path \"%s\"", src); + error("Unable to canonicalize path \"%s\"", src); return -1; } - ret = download_dir_internal(conn, src_canon, dst, - dirattrib, pflag, printflag, 0); - xfree(src_canon); + ret = download_dir_internal(conn, src_canon, dst, 0, + dirattrib, preserve_flag, print_flag, resume_flag, fsync_flag); + free(src_canon); return ret; } int do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, - int pflag) + int preserve_flag, int fsync_flag) { int local_fd; int status = SSH2_FX_OK; u_int handle_len, id, type; - off_t offset; + off_t offset, progress_counter; char *handle, *data; Buffer msg; struct stat sb; @@ -1378,7 +1464,7 @@ do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, a.flags &= ~SSH2_FILEXFER_ATTR_SIZE; a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID; a.perm &= 0777; - if (!pflag) + if (!preserve_flag) a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME; buffer_init(&msg); @@ -1407,9 +1493,10 @@ do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, data = xmalloc(conn->transfer_buflen); /* Read from local and write to remote */ - offset = 0; + offset = progress_counter = 0; if (showprogress) - start_progress_meter(local_path, sb.st_size, &offset); + start_progress_meter(local_path, sb.st_size, + &progress_counter); for (;;) { int len; @@ -1432,7 +1519,7 @@ do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, strerror(errno)); if (len != 0) { - ack = xmalloc(sizeof(*ack)); + ack = xcalloc(1, sizeof(*ack)); ack->id = ++id; ack->offset = offset; ack->len = len; @@ -1480,7 +1567,8 @@ do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, debug3("In write loop, ack for %u %u bytes at %lld", ack->id, ack->len, (long long)ack->offset); ++ackid; - xfree(ack); + progress_counter += ack->len; + free(ack); } offset += len; if (offset < 0) @@ -1490,7 +1578,7 @@ do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, if (showprogress) stop_progress_meter(); - xfree(data); + free(data); if (status != SSH2_FX_OK) { error("Couldn't write to remote file \"%s\": %s", @@ -1505,19 +1593,22 @@ do_upload(struct sftp_conn *conn, char *local_path, char *remote_path, } /* Override umask and utimes if asked */ - if (pflag) + if (preserve_flag) do_fsetstat(conn, handle, handle_len, &a); + if (fsync_flag) + (void)do_fsync(conn, handle, handle_len); + if (do_close(conn, handle, handle_len) != SSH2_FX_OK) status = -1; - xfree(handle); + free(handle); return status; } static int -upload_dir_internal(struct sftp_conn *conn, char *src, char *dst, - int pflag, int printflag, int depth) +upload_dir_internal(struct sftp_conn *conn, char *src, char *dst, int depth, + int preserve_flag, int print_flag, int fsync_flag) { int ret = 0, status; DIR *dirp; @@ -1540,7 +1631,7 @@ upload_dir_internal(struct sftp_conn *conn, char *src, char *dst, error("\"%s\" is not a directory", src); return -1; } - if (printflag) + if (print_flag) printf("Entering %s\n", src); attrib_clear(&a); @@ -1548,9 +1639,9 @@ upload_dir_internal(struct sftp_conn *conn, char *src, char *dst, a.flags &= ~SSH2_FILEXFER_ATTR_SIZE; a.flags &= ~SSH2_FILEXFER_ATTR_UIDGID; a.perm &= 01777; - if (!pflag) + if (!preserve_flag) a.flags &= ~SSH2_FILEXFER_ATTR_ACMODTIME; - + status = do_mkdir(conn, dst, &a, 0); /* * we lack a portable status for errno EEXIST, @@ -1560,7 +1651,7 @@ upload_dir_internal(struct sftp_conn *conn, char *src, char *dst, if (status != SSH2_FX_OK) { if (status != SSH2_FX_FAILURE) return -1; - if (do_stat(conn, dst, 0) == NULL) + if (do_stat(conn, dst, 0) == NULL) return -1; } @@ -1568,7 +1659,7 @@ upload_dir_internal(struct sftp_conn *conn, char *src, char *dst, error("Failed to open dir \"%s\": %s", src, strerror(errno)); return -1; } - + while (((dp = readdir(dirp)) != NULL) && !interrupted) { if (dp->d_ino == 0) continue; @@ -1586,18 +1677,20 @@ upload_dir_internal(struct sftp_conn *conn, char *src, char *dst, continue; if (upload_dir_internal(conn, new_src, new_dst, - pflag, printflag, depth + 1) == -1) + depth + 1, preserve_flag, print_flag, + fsync_flag) == -1) ret = -1; } else if (S_ISREG(sb.st_mode)) { - if (do_upload(conn, new_src, new_dst, pflag) == -1) { + if (do_upload(conn, new_src, new_dst, + preserve_flag, fsync_flag) == -1) { error("Uploading of file %s to %s failed!", new_src, new_dst); ret = -1; } } else logit("%s: not a regular file\n", filename); - xfree(new_dst); - xfree(new_src); + free(new_dst); + free(new_src); } do_setstat(conn, dst, &a); @@ -1607,19 +1700,21 @@ upload_dir_internal(struct sftp_conn *conn, char *src, char *dst, } int -upload_dir(struct sftp_conn *conn, char *src, char *dst, int printflag, - int pflag) +upload_dir(struct sftp_conn *conn, char *src, char *dst, int preserve_flag, + int print_flag, int fsync_flag) { char *dst_canon; int ret; if ((dst_canon = do_realpath(conn, dst)) == NULL) { - error("Unable to canonicalise path \"%s\"", dst); + error("Unable to canonicalize path \"%s\"", dst); return -1; } - ret = upload_dir_internal(conn, src, dst_canon, pflag, printflag, 0); - xfree(dst_canon); + ret = upload_dir_internal(conn, src, dst_canon, 0, preserve_flag, + print_flag, fsync_flag); + + free(dst_canon); return ret; } diff --git a/sftp-client.h b/sftp-client.h index aef54ef4..ba92ad01 100644 --- a/sftp-client.h +++ b/sftp-client.h @@ -1,4 +1,4 @@ -/* $OpenBSD: sftp-client.h,v 1.20 2010/12/04 00:18:01 djm Exp $ */ +/* $OpenBSD: sftp-client.h,v 1.24 2013/10/17 00:30:13 djm Exp $ */ /* * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> @@ -92,7 +92,7 @@ char *do_realpath(struct sftp_conn *, char *); int do_statvfs(struct sftp_conn *, const char *, struct sftp_statvfs *, int); /* Rename 'oldpath' to 'newpath' */ -int do_rename(struct sftp_conn *, char *, char *); +int do_rename(struct sftp_conn *, char *, char *m, int force_legacy); /* Link 'oldpath' to 'newpath' */ int do_hardlink(struct sftp_conn *, char *, char *); @@ -100,31 +100,33 @@ int do_hardlink(struct sftp_conn *, char *, char *); /* Rename 'oldpath' to 'newpath' */ int do_symlink(struct sftp_conn *, char *, char *); -/* XXX: add callbacks to do_download/do_upload so we can do progress meter */ +/* Call fsync() on open file 'handle' */ +int do_fsync(struct sftp_conn *conn, char *, u_int); /* * Download 'remote_path' to 'local_path'. Preserve permissions and times * if 'pflag' is set */ -int do_download(struct sftp_conn *, char *, char *, Attrib *, int); +int do_download(struct sftp_conn *, char *, char *, Attrib *, int, int, int); /* * Recursively download 'remote_directory' to 'local_directory'. Preserve * times if 'pflag' is set */ -int download_dir(struct sftp_conn *, char *, char *, Attrib *, int, int); +int download_dir(struct sftp_conn *, char *, char *, Attrib *, int, + int, int, int); /* * Upload 'local_path' to 'remote_path'. Preserve permissions and times * if 'pflag' is set */ -int do_upload(struct sftp_conn *, char *, char *, int); +int do_upload(struct sftp_conn *, char *, char *, int, int); /* * Recursively upload 'local_directory' to 'remote_directory'. Preserve * times if 'pflag' is set */ -int upload_dir(struct sftp_conn *, char *, char *, int, int); +int upload_dir(struct sftp_conn *, char *, char *, int, int, int); /* Concatenate paths, taking care of slashes. Caller must free result. */ char *path_append(char *, char *); diff --git a/sftp-common.c b/sftp-common.c index a042875c..70a929cc 100644 --- a/sftp-common.c +++ b/sftp-common.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sftp-common.c,v 1.23 2010/01/15 09:24:23 markus Exp $ */ +/* $OpenBSD: sftp-common.c,v 1.26 2014/01/09 03:26:00 guenther Exp $ */ /* * Copyright (c) 2001 Markus Friedl. All rights reserved. * Copyright (c) 2001 Damien Miller. All rights reserved. @@ -33,6 +33,7 @@ #include <grp.h> #include <pwd.h> #include <stdio.h> +#include <stdlib.h> #include <string.h> #include <time.h> #include <stdarg.h> @@ -128,8 +129,8 @@ decode_attrib(Buffer *b) type = buffer_get_string(b, NULL); data = buffer_get_string(b, NULL); debug3("Got file attribute \"%s\"", type); - xfree(type); - xfree(data); + free(type); + free(data); } } return &a; @@ -194,6 +195,7 @@ ls_file(const char *name, const struct stat *st, int remote, int si_units) char *user, *group; char buf[1024], mode[11+1], tbuf[12+1], ubuf[11+1], gbuf[11+1]; char sbuf[FMT_SCALED_STRSIZE]; + time_t now; strmode(st->st_mode, mode); if (!remote) { @@ -209,7 +211,9 @@ ls_file(const char *name, const struct stat *st, int remote, int si_units) group = gbuf; } if (ltime != NULL) { - if (time(NULL) - st->st_mtime < (365*24*60*60)/2) + now = time(NULL); + if (now - (365*24*60*60)/2 < st->st_mtime && + now >= st->st_mtime) sz = strftime(tbuf, sizeof tbuf, "%b %e %H:%M", ltime); else sz = strftime(tbuf, sizeof tbuf, "%b %e %Y", ltime); diff --git a/sftp-glob.c b/sftp-glob.c index 06bf157c..d85aecc9 100644 --- a/sftp-glob.c +++ b/sftp-glob.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sftp-glob.c,v 1.23 2011/10/04 14:17:32 djm Exp $ */ +/* $OpenBSD: sftp-glob.c,v 1.26 2013/11/08 11:15:19 dtucker Exp $ */ /* * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> * @@ -23,6 +23,7 @@ #endif #include <dirent.h> +#include <stdlib.h> #include <string.h> #include "xmalloc.h" @@ -48,10 +49,10 @@ fudge_opendir(const char *path) { struct SFTP_OPENDIR *r; - r = xmalloc(sizeof(*r)); + r = xcalloc(1, sizeof(*r)); if (do_readdir(cur.conn, (char *)path, &r->dir)) { - xfree(r); + free(r); return(NULL); } @@ -103,7 +104,7 @@ static void fudge_closedir(struct SFTP_OPENDIR *od) { free_sftp_dirents(od->dir); - xfree(od); + free(od); } static int diff --git a/sftp-server.8 b/sftp-server.8 index bb19c15e..1e0b277b 100644 --- a/sftp-server.8 +++ b/sftp-server.8 @@ -1,4 +1,4 @@ -.\" $OpenBSD: sftp-server.8,v 1.19 2010/01/09 03:36:00 jmc Exp $ +.\" $OpenBSD: sftp-server.8,v 1.25 2013/10/14 14:18:56 jmc Exp $ .\" .\" Copyright (c) 2000 Markus Friedl. All rights reserved. .\" @@ -22,7 +22,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: January 9 2010 $ +.Dd $Mdocdate: October 14 2013 $ .Dt SFTP-SERVER 8 .Os .Sh NAME @@ -30,10 +30,17 @@ .Nd SFTP server subsystem .Sh SYNOPSIS .Nm sftp-server +.Bk -words .Op Fl ehR +.Op Fl d Ar start_directory .Op Fl f Ar log_facility .Op Fl l Ar log_level +.Op Fl P Ar blacklisted_requests +.Op Fl p Ar whitelisted_requests .Op Fl u Ar umask +.Ek +.Nm +.Fl Q Ar protocol_feature .Sh DESCRIPTION .Nm is a program that speaks the server side of SFTP protocol @@ -56,6 +63,17 @@ for more information. .Pp Valid options are: .Bl -tag -width Ds +.It Fl d Ar start_directory +specifies an alternate starting directory for users. +The pathname may contain the following tokens that are expanded at runtime: +%% is replaced by a literal '%', +%h is replaced by the home directory of the user being authenticated, +and %u is replaced by the username of that user. +The default is to use the user's home directory. +This option is useful in conjunction with the +.Xr sshd_config 5 +.Cm ChrootDirectory +option. .It Fl e Causes .Nm @@ -81,6 +99,34 @@ performs on behalf of the client. DEBUG and DEBUG1 are equivalent. DEBUG2 and DEBUG3 each specify higher levels of debugging output. The default is ERROR. +.It Fl P Ar blacklisted_requests +Specify a comma-separated list of SFTP protocol requests that are banned by +the server. +.Nm +will reply to any blacklisted request with a failure. +The +.Fl Q +flag can be used to determine the supported request types. +If both a blacklist and a whitelist are specified, then the blacklist is +applied before the whitelist. +.It Fl p Ar whitelisted_requests +Specify a comma-separated list of SFTP protocol requests that are permitted +by the server. +All request types that are not on the whitelist will be logged and replied +to with a failure message. +.Pp +Care must be taken when using this feature to ensure that requests made +implicitly by SFTP clients are permitted. +.It Fl Q Ar protocol_feature +Query protocol features supported by +.Nm . +At present the only feature that may be queried is +.Dq requests , +which may be used for black or whitelisting (flags +.Fl P +and +.Fl p +respectively). .It Fl R Places this instance of .Nm @@ -112,8 +158,8 @@ establish a logging socket inside the chroot directory. .%A T. Ylonen .%A S. Lehtinen .%T "SSH File Transfer Protocol" -.%N draft-ietf-secsh-filexfer-00.txt -.%D January 2001 +.%N draft-ietf-secsh-filexfer-02.txt +.%D October 2001 .%O work in progress material .Re .Sh HISTORY @@ -121,4 +167,4 @@ establish a logging socket inside the chroot directory. first appeared in .Ox 2.8 . .Sh AUTHORS -.An Markus Friedl Aq markus@openbsd.org +.An Markus Friedl Aq Mt markus@openbsd.org diff --git a/sftp-server.c b/sftp-server.c index 9d01c7d7..b8eb59c3 100644 --- a/sftp-server.c +++ b/sftp-server.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sftp-server.c,v 1.94 2011/06/17 21:46:16 djm Exp $ */ +/* $OpenBSD: sftp-server.c,v 1.103 2014/01/17 06:23:24 dtucker Exp $ */ /* * Copyright (c) 2000-2004 Markus Friedl. All rights reserved. * @@ -46,6 +46,7 @@ #include "buffer.h" #include "log.h" #include "misc.h" +#include "match.h" #include "uidswap.h" #include "sftp.h" @@ -57,24 +58,29 @@ #define get_string(lenp) buffer_get_string(&iqueue, lenp); /* Our verbosity */ -LogLevel log_level = SYSLOG_LEVEL_ERROR; +static LogLevel log_level = SYSLOG_LEVEL_ERROR; /* Our client */ -struct passwd *pw = NULL; -char *client_addr = NULL; +static struct passwd *pw = NULL; +static char *client_addr = NULL; /* input and output queue */ -Buffer iqueue; -Buffer oqueue; +static Buffer iqueue; +static Buffer oqueue; /* Version of client */ -u_int version; +static u_int version; + +/* SSH2_FXP_INIT received */ +static int init_done; /* Disable writes */ -int readonly; +static int readonly; -/* portable attributes, etc. */ +/* Requests that are allowed/denied */ +static char *request_whitelist, *request_blacklist; +/* portable attributes, etc. */ typedef struct Stat Stat; struct Stat { @@ -83,6 +89,102 @@ struct Stat { Attrib attrib; }; +/* Packet handlers */ +static void process_open(u_int32_t id); +static void process_close(u_int32_t id); +static void process_read(u_int32_t id); +static void process_write(u_int32_t id); +static void process_stat(u_int32_t id); +static void process_lstat(u_int32_t id); +static void process_fstat(u_int32_t id); +static void process_setstat(u_int32_t id); +static void process_fsetstat(u_int32_t id); +static void process_opendir(u_int32_t id); +static void process_readdir(u_int32_t id); +static void process_remove(u_int32_t id); +static void process_mkdir(u_int32_t id); +static void process_rmdir(u_int32_t id); +static void process_realpath(u_int32_t id); +static void process_rename(u_int32_t id); +static void process_readlink(u_int32_t id); +static void process_symlink(u_int32_t id); +static void process_extended_posix_rename(u_int32_t id); +static void process_extended_statvfs(u_int32_t id); +static void process_extended_fstatvfs(u_int32_t id); +static void process_extended_hardlink(u_int32_t id); +static void process_extended_fsync(u_int32_t id); +static void process_extended(u_int32_t id); + +struct sftp_handler { + const char *name; /* user-visible name for fine-grained perms */ + const char *ext_name; /* extended request name */ + u_int type; /* packet type, for non extended packets */ + void (*handler)(u_int32_t); + int does_write; /* if nonzero, banned for readonly mode */ +}; + +struct sftp_handler handlers[] = { + /* NB. SSH2_FXP_OPEN does the readonly check in the handler itself */ + { "open", NULL, SSH2_FXP_OPEN, process_open, 0 }, + { "close", NULL, SSH2_FXP_CLOSE, process_close, 0 }, + { "read", NULL, SSH2_FXP_READ, process_read, 0 }, + { "write", NULL, SSH2_FXP_WRITE, process_write, 1 }, + { "lstat", NULL, SSH2_FXP_LSTAT, process_lstat, 0 }, + { "fstat", NULL, SSH2_FXP_FSTAT, process_fstat, 0 }, + { "setstat", NULL, SSH2_FXP_SETSTAT, process_setstat, 1 }, + { "fsetstat", NULL, SSH2_FXP_FSETSTAT, process_fsetstat, 1 }, + { "opendir", NULL, SSH2_FXP_OPENDIR, process_opendir, 0 }, + { "readdir", NULL, SSH2_FXP_READDIR, process_readdir, 0 }, + { "remove", NULL, SSH2_FXP_REMOVE, process_remove, 1 }, + { "mkdir", NULL, SSH2_FXP_MKDIR, process_mkdir, 1 }, + { "rmdir", NULL, SSH2_FXP_RMDIR, process_rmdir, 1 }, + { "realpath", NULL, SSH2_FXP_REALPATH, process_realpath, 0 }, + { "stat", NULL, SSH2_FXP_STAT, process_stat, 0 }, + { "rename", NULL, SSH2_FXP_RENAME, process_rename, 1 }, + { "readlink", NULL, SSH2_FXP_READLINK, process_readlink, 0 }, + { "symlink", NULL, SSH2_FXP_SYMLINK, process_symlink, 1 }, + { NULL, NULL, 0, NULL, 0 } +}; + +/* SSH2_FXP_EXTENDED submessages */ +struct sftp_handler extended_handlers[] = { + { "posix-rename", "posix-rename@openssh.com", 0, + process_extended_posix_rename, 1 }, + { "statvfs", "statvfs@openssh.com", 0, process_extended_statvfs, 0 }, + { "fstatvfs", "fstatvfs@openssh.com", 0, process_extended_fstatvfs, 0 }, + { "hardlink", "hardlink@openssh.com", 0, process_extended_hardlink, 1 }, + { "fsync", "fsync@openssh.com", 0, process_extended_fsync, 1 }, + { NULL, NULL, 0, NULL, 0 } +}; + +static int +request_permitted(struct sftp_handler *h) +{ + char *result; + + if (readonly && h->does_write) { + verbose("Refusing %s request in read-only mode", h->name); + return 0; + } + if (request_blacklist != NULL && + ((result = match_list(h->name, request_blacklist, NULL))) != NULL) { + free(result); + verbose("Refusing blacklisted %s request", h->name); + return 0; + } + if (request_whitelist != NULL && + ((result = match_list(h->name, request_whitelist, NULL))) != NULL) { + free(result); + debug2("Permitting whitelisted %s request", h->name); + return 1; + } + if (request_whitelist != NULL) { + verbose("Refusing non-whitelisted %s request", h->name); + return 0; + } + return 1; +} + static int errno_to_portable(int unixerrno) { @@ -130,6 +232,8 @@ flags_from_portable(int pflags) } else if (pflags & SSH2_FXF_WRITE) { flags = O_WRONLY; } + if (pflags & SSH2_FXF_APPEND) + flags |= O_APPEND; if (pflags & SSH2_FXF_CREAT) flags |= O_CREAT; if (pflags & SSH2_FXF_TRUNC) @@ -156,6 +260,8 @@ string_from_portable(int pflags) PAPPEND("READ") if (pflags & SSH2_FXF_WRITE) PAPPEND("WRITE") + if (pflags & SSH2_FXF_APPEND) + PAPPEND("APPEND") if (pflags & SSH2_FXF_CREAT) PAPPEND("CREATE") if (pflags & SSH2_FXF_TRUNC) @@ -179,6 +285,7 @@ struct Handle { int use; DIR *dirp; int fd; + int flags; char *name; u_int64_t bytes_read, bytes_write; int next_unused; @@ -202,7 +309,7 @@ static void handle_unused(int i) } static int -handle_new(int use, const char *name, int fd, DIR *dirp) +handle_new(int use, const char *name, int fd, int flags, DIR *dirp) { int i; @@ -220,6 +327,7 @@ handle_new(int use, const char *name, int fd, DIR *dirp) handles[i].use = use; handles[i].dirp = dirp; handles[i].fd = fd; + handles[i].flags = flags; handles[i].name = xstrdup(name); handles[i].bytes_read = handles[i].bytes_write = 0; @@ -282,6 +390,14 @@ handle_to_fd(int handle) return -1; } +static int +handle_to_flags(int handle) +{ + if (handle_is_ok(handle, HANDLE_FILE)) + return handles[handle].flags; + return 0; +} + static void handle_update_read(int handle, ssize_t bytes) { @@ -319,11 +435,11 @@ handle_close(int handle) if (handle_is_ok(handle, HANDLE_FILE)) { ret = close(handles[handle].fd); - xfree(handles[handle].name); + free(handles[handle].name); handle_unused(handle); } else if (handle_is_ok(handle, HANDLE_DIR)) { ret = closedir(handles[handle].dirp); - xfree(handles[handle].name); + free(handles[handle].name); handle_unused(handle); } else { errno = ENOENT; @@ -367,7 +483,7 @@ get_handle(void) handle = get_string(&hlen); if (hlen < 256) val = handle_from_string(handle, hlen); - xfree(handle); + free(handle); return val; } @@ -450,7 +566,7 @@ send_handle(u_int32_t id, int handle) handle_to_string(handle, &string, &hlen); debug("request %u: sent handle handle %d", id, handle); send_data_or_handle(SSH2_FXP_HANDLE, id, string, hlen); - xfree(string); + free(string); } static void @@ -538,19 +654,21 @@ process_init(void) /* hardlink extension */ buffer_put_cstring(&msg, "hardlink@openssh.com"); buffer_put_cstring(&msg, "1"); /* version */ + /* fsync extension */ + buffer_put_cstring(&msg, "fsync@openssh.com"); + buffer_put_cstring(&msg, "1"); /* version */ send_msg(&msg); buffer_free(&msg); } static void -process_open(void) +process_open(u_int32_t id) { - u_int32_t id, pflags; + u_int32_t pflags; Attrib *a; char *name; int handle, fd, flags, mode, status = SSH2_FX_FAILURE; - id = get_int(); name = get_string(NULL); pflags = get_int(); /* portable flags */ debug3("request %u: open flags %d", id, pflags); @@ -560,14 +678,16 @@ process_open(void) logit("open \"%s\" flags %s mode 0%o", name, string_from_portable(pflags), mode); if (readonly && - ((flags & O_ACCMODE) == O_WRONLY || (flags & O_ACCMODE) == O_RDWR)) - status = SSH2_FX_PERMISSION_DENIED; - else { + ((flags & O_ACCMODE) == O_WRONLY || + (flags & O_ACCMODE) == O_RDWR)) { + verbose("Refusing open request in read-only mode"); + status = SSH2_FX_PERMISSION_DENIED; + } else { fd = open(name, flags, mode); if (fd < 0) { status = errno_to_portable(errno); } else { - handle = handle_new(HANDLE_FILE, name, fd, NULL); + handle = handle_new(HANDLE_FILE, name, fd, flags, NULL); if (handle < 0) { close(fd); } else { @@ -578,16 +698,14 @@ process_open(void) } if (status != SSH2_FX_OK) send_status(id, status); - xfree(name); + free(name); } static void -process_close(void) +process_close(u_int32_t id) { - u_int32_t id; int handle, ret, status = SSH2_FX_FAILURE; - id = get_int(); handle = get_handle(); debug3("request %u: close handle %u", id, handle); handle_log_close(handle, NULL); @@ -597,14 +715,13 @@ process_close(void) } static void -process_read(void) +process_read(u_int32_t id) { char buf[64*1024]; - u_int32_t id, len; + u_int32_t len; int handle, fd, ret, status = SSH2_FX_FAILURE; u_int64_t off; - id = get_int(); handle = get_handle(); off = get_int64(); len = get_int(); @@ -638,15 +755,13 @@ process_read(void) } static void -process_write(void) +process_write(u_int32_t id) { - u_int32_t id; u_int64_t off; u_int len; int handle, fd, ret, status; char *data; - id = get_int(); handle = get_handle(); off = get_int64(); data = get_string(&len); @@ -657,10 +772,9 @@ process_write(void) if (fd < 0) status = SSH2_FX_FAILURE; - else if (readonly) - status = SSH2_FX_PERMISSION_DENIED; else { - if (lseek(fd, off, SEEK_SET) < 0) { + if (!(handle_to_flags(handle) & O_APPEND) && + lseek(fd, off, SEEK_SET) < 0) { status = errno_to_portable(errno); error("process_write: seek failed"); } else { @@ -679,19 +793,17 @@ process_write(void) } } send_status(id, status); - xfree(data); + free(data); } static void -process_do_stat(int do_lstat) +process_do_stat(u_int32_t id, int do_lstat) { Attrib a; struct stat st; - u_int32_t id; char *name; int ret, status = SSH2_FX_FAILURE; - id = get_int(); name = get_string(NULL); debug3("request %u: %sstat", id, do_lstat ? "l" : ""); verbose("%sstat name \"%s\"", do_lstat ? "l" : "", name); @@ -705,30 +817,28 @@ process_do_stat(int do_lstat) } if (status != SSH2_FX_OK) send_status(id, status); - xfree(name); + free(name); } static void -process_stat(void) +process_stat(u_int32_t id) { - process_do_stat(0); + process_do_stat(id, 0); } static void -process_lstat(void) +process_lstat(u_int32_t id) { - process_do_stat(1); + process_do_stat(id, 1); } static void -process_fstat(void) +process_fstat(u_int32_t id) { Attrib a; struct stat st; - u_int32_t id; int fd, ret, handle, status = SSH2_FX_FAILURE; - id = get_int(); handle = get_handle(); debug("request %u: fstat \"%s\" (handle %u)", id, handle_to_name(handle), handle); @@ -760,21 +870,15 @@ attrib_to_tv(const Attrib *a) } static void -process_setstat(void) +process_setstat(u_int32_t id) { Attrib *a; - u_int32_t id; char *name; int status = SSH2_FX_OK, ret; - id = get_int(); name = get_string(NULL); a = get_attrib(); debug("request %u: setstat name \"%s\"", id, name); - if (readonly) { - status = SSH2_FX_PERMISSION_DENIED; - a->flags = 0; - } if (a->flags & SSH2_FILEXFER_ATTR_SIZE) { logit("set \"%s\" size %llu", name, (unsigned long long)a->size); @@ -807,26 +911,22 @@ process_setstat(void) status = errno_to_portable(errno); } send_status(id, status); - xfree(name); + free(name); } static void -process_fsetstat(void) +process_fsetstat(u_int32_t id) { Attrib *a; - u_int32_t id; int handle, fd, ret; int status = SSH2_FX_OK; - id = get_int(); handle = get_handle(); a = get_attrib(); debug("request %u: fsetstat handle %d", id, handle); fd = handle_to_fd(handle); if (fd < 0) status = SSH2_FX_FAILURE; - else if (readonly) - status = SSH2_FX_PERMISSION_DENIED; else { char *name = handle_to_name(handle); @@ -878,14 +978,12 @@ process_fsetstat(void) } static void -process_opendir(void) +process_opendir(u_int32_t id) { DIR *dirp = NULL; char *path; int handle, status = SSH2_FX_FAILURE; - u_int32_t id; - id = get_int(); path = get_string(NULL); debug3("request %u: opendir", id); logit("opendir \"%s\"", path); @@ -893,7 +991,7 @@ process_opendir(void) if (dirp == NULL) { status = errno_to_portable(errno); } else { - handle = handle_new(HANDLE_DIR, path, 0, dirp); + handle = handle_new(HANDLE_DIR, path, 0, 0, dirp); if (handle < 0) { closedir(dirp); } else { @@ -904,19 +1002,17 @@ process_opendir(void) } if (status != SSH2_FX_OK) send_status(id, status); - xfree(path); + free(path); } static void -process_readdir(void) +process_readdir(u_int32_t id) { DIR *dirp; struct dirent *dp; char *path; int handle; - u_int32_t id; - id = get_int(); handle = get_handle(); debug("request %u: readdir \"%s\" (handle %d)", id, handle_to_name(handle), handle); @@ -953,95 +1049,75 @@ process_readdir(void) if (count > 0) { send_names(id, count, stats); for (i = 0; i < count; i++) { - xfree(stats[i].name); - xfree(stats[i].long_name); + free(stats[i].name); + free(stats[i].long_name); } } else { send_status(id, SSH2_FX_EOF); } - xfree(stats); + free(stats); } } static void -process_remove(void) +process_remove(u_int32_t id) { char *name; - u_int32_t id; int status = SSH2_FX_FAILURE; int ret; - id = get_int(); name = get_string(NULL); debug3("request %u: remove", id); logit("remove name \"%s\"", name); - if (readonly) - status = SSH2_FX_PERMISSION_DENIED; - else { - ret = unlink(name); - status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; - } + ret = unlink(name); + status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; send_status(id, status); - xfree(name); + free(name); } static void -process_mkdir(void) +process_mkdir(u_int32_t id) { Attrib *a; - u_int32_t id; char *name; int ret, mode, status = SSH2_FX_FAILURE; - id = get_int(); name = get_string(NULL); a = get_attrib(); mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? a->perm & 07777 : 0777; debug3("request %u: mkdir", id); logit("mkdir name \"%s\" mode 0%o", name, mode); - if (readonly) - status = SSH2_FX_PERMISSION_DENIED; - else { - ret = mkdir(name, mode); - status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; - } + ret = mkdir(name, mode); + status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; send_status(id, status); - xfree(name); + free(name); } static void -process_rmdir(void) +process_rmdir(u_int32_t id) { - u_int32_t id; char *name; int ret, status; - id = get_int(); name = get_string(NULL); debug3("request %u: rmdir", id); logit("rmdir name \"%s\"", name); - if (readonly) - status = SSH2_FX_PERMISSION_DENIED; - else { - ret = rmdir(name); - status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; - } + ret = rmdir(name); + status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; send_status(id, status); - xfree(name); + free(name); } static void -process_realpath(void) +process_realpath(u_int32_t id) { char resolvedname[MAXPATHLEN]; - u_int32_t id; char *path; - id = get_int(); path = get_string(NULL); if (path[0] == '\0') { - xfree(path); + free(path); path = xstrdup("."); } debug3("request %u: realpath", id); @@ -1054,26 +1130,22 @@ process_realpath(void) s.name = s.long_name = resolvedname; send_names(id, 1, &s); } - xfree(path); + free(path); } static void -process_rename(void) +process_rename(u_int32_t id) { - u_int32_t id; char *oldpath, *newpath; int status; struct stat sb; - id = get_int(); oldpath = get_string(NULL); newpath = get_string(NULL); debug3("request %u: rename", id); logit("rename old \"%s\" new \"%s\"", oldpath, newpath); status = SSH2_FX_FAILURE; - if (readonly) - status = SSH2_FX_PERMISSION_DENIED; - else if (lstat(oldpath, &sb) == -1) + if (lstat(oldpath, &sb) == -1) status = errno_to_portable(errno); else if (S_ISREG(sb.st_mode)) { /* Race-free rename of regular files */ @@ -1115,19 +1187,17 @@ process_rename(void) status = SSH2_FX_OK; } send_status(id, status); - xfree(oldpath); - xfree(newpath); + free(oldpath); + free(newpath); } static void -process_readlink(void) +process_readlink(u_int32_t id) { - u_int32_t id; int len; char buf[MAXPATHLEN]; char *path; - id = get_int(); path = get_string(NULL); debug3("request %u: readlink", id); verbose("readlink \"%s\"", path); @@ -1141,31 +1211,25 @@ process_readlink(void) s.name = s.long_name = buf; send_names(id, 1, &s); } - xfree(path); + free(path); } static void -process_symlink(void) +process_symlink(u_int32_t id) { - u_int32_t id; char *oldpath, *newpath; int ret, status; - id = get_int(); oldpath = get_string(NULL); newpath = get_string(NULL); debug3("request %u: symlink", id); logit("symlink old \"%s\" new \"%s\"", oldpath, newpath); /* this will fail if 'newpath' exists */ - if (readonly) - status = SSH2_FX_PERMISSION_DENIED; - else { - ret = symlink(oldpath, newpath); - status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; - } + ret = symlink(oldpath, newpath); + status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; send_status(id, status); - xfree(oldpath); - xfree(newpath); + free(oldpath); + free(newpath); } static void @@ -1178,15 +1242,11 @@ process_extended_posix_rename(u_int32_t id) newpath = get_string(NULL); debug3("request %u: posix-rename", id); logit("posix-rename old \"%s\" new \"%s\"", oldpath, newpath); - if (readonly) - status = SSH2_FX_PERMISSION_DENIED; - else { - ret = rename(oldpath, newpath); - status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; - } + ret = rename(oldpath, newpath); + status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; send_status(id, status); - xfree(oldpath); - xfree(newpath); + free(oldpath); + free(newpath); } static void @@ -1196,14 +1256,14 @@ process_extended_statvfs(u_int32_t id) struct statvfs st; path = get_string(NULL); - debug3("request %u: statfs", id); - logit("statfs \"%s\"", path); + debug3("request %u: statvfs", id); + logit("statvfs \"%s\"", path); if (statvfs(path, &st) != 0) send_status(id, errno_to_portable(errno)); else send_statvfs(id, &st); - xfree(path); + free(path); } static void @@ -1235,36 +1295,51 @@ process_extended_hardlink(u_int32_t id) newpath = get_string(NULL); debug3("request %u: hardlink", id); logit("hardlink old \"%s\" new \"%s\"", oldpath, newpath); - if (readonly) - status = SSH2_FX_PERMISSION_DENIED; - else { - ret = link(oldpath, newpath); + ret = link(oldpath, newpath); + status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; + send_status(id, status); + free(oldpath); + free(newpath); +} + +static void +process_extended_fsync(u_int32_t id) +{ + int handle, fd, ret, status = SSH2_FX_OP_UNSUPPORTED; + + handle = get_handle(); + debug3("request %u: fsync (handle %u)", id, handle); + verbose("fsync \"%s\"", handle_to_name(handle)); + if ((fd = handle_to_fd(handle)) < 0) + status = SSH2_FX_NO_SUCH_FILE; + else if (handle_is_ok(handle, HANDLE_FILE)) { + ret = fsync(fd); status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; } send_status(id, status); - xfree(oldpath); - xfree(newpath); } static void -process_extended(void) +process_extended(u_int32_t id) { - u_int32_t id; char *request; + u_int i; - id = get_int(); request = get_string(NULL); - if (strcmp(request, "posix-rename@openssh.com") == 0) - process_extended_posix_rename(id); - else if (strcmp(request, "statvfs@openssh.com") == 0) - process_extended_statvfs(id); - else if (strcmp(request, "fstatvfs@openssh.com") == 0) - process_extended_fstatvfs(id); - else if (strcmp(request, "hardlink@openssh.com") == 0) - process_extended_hardlink(id); - else + for (i = 0; extended_handlers[i].handler != NULL; i++) { + if (strcmp(request, extended_handlers[i].ext_name) == 0) { + if (!request_permitted(&extended_handlers[i])) + send_status(id, SSH2_FX_PERMISSION_DENIED); + else + extended_handlers[i].handler(id); + break; + } + } + if (extended_handlers[i].handler == NULL) { + error("Unknown extended request \"%.100s\"", request); send_status(id, SSH2_FX_OP_UNSUPPORTED); /* MUST */ - xfree(request); + } + free(request); } /* stolen from ssh-agent */ @@ -1272,11 +1347,9 @@ process_extended(void) static void process(void) { - u_int msg_len; - u_int buf_len; - u_int consumed; - u_int type; + u_int msg_len, buf_len, consumed, type, i; u_char *cp; + u_int32_t id; buf_len = buffer_len(&iqueue); if (buf_len < 5) @@ -1293,70 +1366,35 @@ process(void) buffer_consume(&iqueue, 4); buf_len -= 4; type = buffer_get_char(&iqueue); + switch (type) { case SSH2_FXP_INIT: process_init(); - break; - case SSH2_FXP_OPEN: - process_open(); - break; - case SSH2_FXP_CLOSE: - process_close(); - break; - case SSH2_FXP_READ: - process_read(); - break; - case SSH2_FXP_WRITE: - process_write(); - break; - case SSH2_FXP_LSTAT: - process_lstat(); - break; - case SSH2_FXP_FSTAT: - process_fstat(); - break; - case SSH2_FXP_SETSTAT: - process_setstat(); - break; - case SSH2_FXP_FSETSTAT: - process_fsetstat(); - break; - case SSH2_FXP_OPENDIR: - process_opendir(); - break; - case SSH2_FXP_READDIR: - process_readdir(); - break; - case SSH2_FXP_REMOVE: - process_remove(); - break; - case SSH2_FXP_MKDIR: - process_mkdir(); - break; - case SSH2_FXP_RMDIR: - process_rmdir(); - break; - case SSH2_FXP_REALPATH: - process_realpath(); - break; - case SSH2_FXP_STAT: - process_stat(); - break; - case SSH2_FXP_RENAME: - process_rename(); - break; - case SSH2_FXP_READLINK: - process_readlink(); - break; - case SSH2_FXP_SYMLINK: - process_symlink(); + init_done = 1; break; case SSH2_FXP_EXTENDED: - process_extended(); + if (!init_done) + fatal("Received extended request before init"); + id = get_int(); + process_extended(id); break; default: - error("Unknown message %d", type); - break; + if (!init_done) + fatal("Received %u request before init", type); + id = get_int(); + for (i = 0; handlers[i].handler != NULL; i++) { + if (type == handlers[i].type) { + if (!request_permitted(&handlers[i])) { + send_status(id, + SSH2_FX_PERMISSION_DENIED); + } else { + handlers[i].handler(id); + } + break; + } + } + if (handlers[i].handler == NULL) + error("Unknown message %u", type); } /* discard the remaining bytes from the current packet */ if (buf_len < buffer_len(&iqueue)) { @@ -1365,7 +1403,7 @@ process(void) } consumed = buf_len - buffer_len(&iqueue); if (msg_len < consumed) { - error("msg_len %d < consumed %d", msg_len, consumed); + error("msg_len %u < consumed %u", msg_len, consumed); sftp_server_cleanup_exit(255); } if (msg_len > consumed) @@ -1390,8 +1428,11 @@ sftp_server_usage(void) extern char *__progname; fprintf(stderr, - "usage: %s [-ehR] [-f log_facility] [-l log_level] [-u umask]\n", - __progname); + "usage: %s [-ehR] [-d start_directory] [-f log_facility] " + "[-l log_level]\n\t[-P blacklisted_requests] " + "[-p whitelisted_requests] [-u umask]\n" + " %s -Q protocol_feature\n", + __progname, __progname); exit(1); } @@ -1399,10 +1440,10 @@ int sftp_server_main(int argc, char **argv, struct passwd *user_pw) { fd_set *rset, *wset; - int in, out, max, ch, skipargs = 0, log_stderr = 0; + int i, in, out, max, ch, skipargs = 0, log_stderr = 0; ssize_t len, olen, set_size; SyslogFacility log_facility = SYSLOG_FACILITY_AUTH; - char *cp, buf[4*4096]; + char *cp, *homedir = NULL, buf[4*4096]; long mask; extern char *optarg; @@ -1411,8 +1452,22 @@ sftp_server_main(int argc, char **argv, struct passwd *user_pw) __progname = ssh_get_progname(argv[0]); log_init(__progname, log_level, log_facility, log_stderr); - while (!skipargs && (ch = getopt(argc, argv, "f:l:u:cehR")) != -1) { + pw = pwcopy(user_pw); + + while (!skipargs && (ch = getopt(argc, argv, + "d:f:l:P:p:Q:u:cehR")) != -1) { switch (ch) { + case 'Q': + if (strcasecmp(optarg, "requests") != 0) { + fprintf(stderr, "Invalid query type\n"); + exit(1); + } + for (i = 0; handlers[i].handler != NULL; i++) + printf("%s\n", handlers[i].name); + for (i = 0; extended_handlers[i].handler != NULL; i++) + printf("%s\n", extended_handlers[i].name); + exit(0); + break; case 'R': readonly = 1; break; @@ -1436,6 +1491,22 @@ sftp_server_main(int argc, char **argv, struct passwd *user_pw) if (log_facility == SYSLOG_FACILITY_NOT_SET) error("Invalid log facility \"%s\"", optarg); break; + case 'd': + cp = tilde_expand_filename(optarg, user_pw->pw_uid); + homedir = percent_expand(cp, "d", user_pw->pw_dir, + "u", user_pw->pw_name, (char *)NULL); + free(cp); + break; + case 'p': + if (request_whitelist != NULL) + fatal("Permitted requests already set"); + request_whitelist = xstrdup(optarg); + break; + case 'P': + if (request_blacklist != NULL) + fatal("Refused requests already set"); + request_blacklist = xstrdup(optarg); + break; case 'u': errno = 0; mask = strtol(optarg, &cp, 8); @@ -1463,8 +1534,6 @@ sftp_server_main(int argc, char **argv, struct passwd *user_pw) } else client_addr = xstrdup("UNKNOWN"); - pw = pwcopy(user_pw); - logit("session opened for local user %s from [%s]", pw->pw_name, client_addr); @@ -1489,6 +1558,13 @@ sftp_server_main(int argc, char **argv, struct passwd *user_pw) rset = (fd_set *)xmalloc(set_size); wset = (fd_set *)xmalloc(set_size); + if (homedir != NULL) { + if (chdir(homedir) != 0) { + error("chdir to \"%s\" failed: %s", homedir, + strerror(errno)); + } + } + for (;;) { memset(rset, 0, set_size); memset(wset, 0, set_size); @@ -1,4 +1,4 @@ -.\" $OpenBSD: sftp.1,v 1.91 2011/09/05 05:56:13 djm Exp $ +.\" $OpenBSD: sftp.1,v 1.97 2013/10/20 09:51:26 djm Exp $ .\" .\" Copyright (c) 2001 Damien Miller. All rights reserved. .\" @@ -22,7 +22,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: September 5 2011 $ +.Dd $Mdocdate: October 20 2013 $ .Dt SFTP 1 .Os .Sh NAME @@ -31,7 +31,7 @@ .Sh SYNOPSIS .Nm sftp .Bk -words -.Op Fl 1246Cpqrv +.Op Fl 1246aCfpqrv .Op Fl B Ar buffer_size .Op Fl b Ar batchfile .Op Fl c Ar cipher @@ -107,6 +107,11 @@ to use IPv4 addresses only. Forces .Nm to use IPv6 addresses only. +.It Fl a +Attempt to continue interrupted downloads rather than overwriting existing +partial or complete copies of files. +If the remote file contents differ from the partial local copy then the +resultant file is likely to be corrupt. .It Fl B Ar buffer_size Specify the size of the buffer that .Nm @@ -129,7 +134,7 @@ may be used to indicate standard input. .Nm will abort if any of the following commands fail: -.Ic get , put , rename , ln , +.Ic get , put , reget , rename , ln , .Ic rm , mkdir , chdir , ls , .Ic lchdir , chmod , chown , .Ic chgrp , lpwd , df , symlink , @@ -159,6 +164,10 @@ per-user configuration file for .Xr ssh 1 . This option is directly passed to .Xr ssh 1 . +.It Fl f +Requests that files be flushed to disk immediately after transfer. +When uploading files, this feature is only enabled if the server +implements the "fsync@openssh.com" extension. .It Fl i Ar identity_file Selects the file from which the identity (private key) for public key authentication is read. @@ -184,6 +193,11 @@ For full details of the options listed below, and their possible values, see .It AddressFamily .It BatchMode .It BindAddress +.It CanonicalDomains +.It CanonicalizeFallbackLocal +.It CanonicalizeHostname +.It CanonicalizeMaxDots +.It CanonicalizePermittedCNAMEs .It ChallengeResponseAuthentication .It CheckHostIP .It Cipher @@ -343,7 +357,7 @@ extension. Quit .Nm sftp . .It Xo Ic get -.Op Fl Ppr +.Op Fl afPpr .Ar remote-path .Op Ar local-path .Xc @@ -363,6 +377,21 @@ is specified, then .Ar local-path must specify a directory. .Pp +If the +.Fl a +flag is specified, then attempt to resume partial transfers of existing files. +Note that resumption assumes that any partial copy of the local file matches +the remote copy. +If the remote file contents differ from the partial local copy then the +resultant file is likely to be corrupt. +.Pp +If the +.Fl f +flag is specified, then +.Xr fsync 2 +will be called after the file transfer has completed to flush the file +to disk. +.Pp If either the .Fl P or @@ -466,7 +495,7 @@ Create remote directory specified by .It Ic progress Toggle display of progress meter. .It Xo Ic put -.Op Fl Ppr +.Op Fl fPpr .Ar local-path .Op Ar remote-path .Xc @@ -485,6 +514,14 @@ is specified, then .Ar remote-path must specify a directory. .Pp +If the +.Fl f +flag is specified, then a request will be sent to the server to call +.Xr fsync 2 +after the file has been transferred. +Note that this is only supported by servers that implement +the "fsync@openssh.com" extension. +.Pp If either the .Fl P or @@ -503,6 +540,18 @@ Display remote working directory. .It Ic quit Quit .Nm sftp . +.It Xo Ic reget +.Op Fl Ppr +.Ar remote-path +.Op Ar local-path +.Xc +Resume download of +.Ar remote-path . +Equivalent to +.Ic get +with the +.Fl a +flag set. .It Ic rename Ar oldpath Ar newpath Rename remote file from .Ar oldpath @@ -1,4 +1,4 @@ -/* $OpenBSD: sftp.c,v 1.134 2011/11/16 12:24:28 oga Exp $ */ +/* $OpenBSD: sftp.c,v 1.158 2013/11/20 20:54:10 deraadt Exp $ */ /* * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> * @@ -38,6 +38,9 @@ #ifdef HAVE_LIBGEN_H #include <libgen.h> #endif +#ifdef HAVE_LOCALE_H +# include <locale.h> +#endif #ifdef USE_LIBEDIT #include <histedit.h> #else @@ -54,10 +57,6 @@ typedef void EditLine; # include <util.h> #endif -#ifdef HAVE_LIBUTIL_H -# include <libutil.h> -#endif - #include "xmalloc.h" #include "log.h" #include "pathnames.h" @@ -80,15 +79,24 @@ int batchmode = 0; /* PID of ssh transport process */ static pid_t sshpid = -1; +/* Suppress diagnositic messages */ +int quiet = 0; + /* This is set to 0 if the progressmeter is not desired. */ int showprogress = 1; /* When this option is set, we always recursively download/upload directories */ int global_rflag = 0; +/* When this option is set, we resume download if possible */ +int global_aflag = 0; + /* When this option is set, the file transfers will always preserve times */ int global_pflag = 0; +/* When this option is set, transfers will have fsync() called on each file */ +int global_fflag = 0; + /* SIGINT received during command processing */ volatile sig_atomic_t interrupted = 0; @@ -124,31 +132,34 @@ extern char *__progname; #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT) /* Commands for interactive mode */ -#define I_CHDIR 1 -#define I_CHGRP 2 -#define I_CHMOD 3 -#define I_CHOWN 4 -#define I_DF 24 -#define I_GET 5 -#define I_HELP 6 -#define I_LCHDIR 7 -#define I_LINK 25 -#define I_LLS 8 -#define I_LMKDIR 9 -#define I_LPWD 10 -#define I_LS 11 -#define I_LUMASK 12 -#define I_MKDIR 13 -#define I_PUT 14 -#define I_PWD 15 -#define I_QUIT 16 -#define I_RENAME 17 -#define I_RM 18 -#define I_RMDIR 19 -#define I_SHELL 20 -#define I_SYMLINK 21 -#define I_VERSION 22 -#define I_PROGRESS 23 +enum sftp_command { + I_CHDIR = 1, + I_CHGRP, + I_CHMOD, + I_CHOWN, + I_DF, + I_GET, + I_HELP, + I_LCHDIR, + I_LINK, + I_LLS, + I_LMKDIR, + I_LPWD, + I_LS, + I_LUMASK, + I_MKDIR, + I_PUT, + I_PWD, + I_QUIT, + I_RENAME, + I_RM, + I_RMDIR, + I_SHELL, + I_SYMLINK, + I_VERSION, + I_PROGRESS, + I_REGET, +}; struct CMD { const char *c; @@ -188,6 +199,7 @@ static const struct CMD cmds[] = { { "put", I_PUT, LOCAL }, { "pwd", I_PWD, REMOTE }, { "quit", I_QUIT, NOARGS }, + { "reget", I_REGET, REMOTE }, { "rename", I_RENAME, REMOTE }, { "rm", I_RM, REMOTE }, { "rmdir", I_RMDIR, REMOTE }, @@ -219,7 +231,7 @@ cmd_interrupt(int signo) const char msg[] = "\rInterrupt \n"; int olderrno = errno; - write(STDERR_FILENO, msg, sizeof(msg) - 1); + (void)write(STDERR_FILENO, msg, sizeof(msg) - 1); interrupted = 1; errno = olderrno; } @@ -237,6 +249,7 @@ help(void) " filesystem containing 'path'\n" "exit Quit sftp\n" "get [-Ppr] remote [local] Download file\n" + "reget remote [local] Resume download file\n" "help Display this help text\n" "lcd path Change local directory to 'path'\n" "lls [ls-options [path]] Display local directory listing\n" @@ -310,7 +323,7 @@ local_do_ls(const char *args) /* XXX: quoting - rip quoting code from ftp? */ snprintf(buf, len, _PATH_LS " %s", args); local_do_shell(buf); - xfree(buf); + free(buf); } } @@ -341,15 +354,15 @@ make_absolute(char *p, char *pwd) /* Derelativise */ if (p && p[0] != '/') { abs_str = path_append(pwd, p); - xfree(p); + free(p); return(abs_str); } else return(p); } static int -parse_getput_flags(const char *cmd, char **argv, int argc, int *pflag, - int *rflag) +parse_getput_flags(const char *cmd, char **argv, int argc, + int *aflag, int *fflag, int *pflag, int *rflag) { extern int opterr, optind, optopt, optreset; int ch; @@ -357,9 +370,15 @@ parse_getput_flags(const char *cmd, char **argv, int argc, int *pflag, optind = optreset = 1; opterr = 0; - *rflag = *pflag = 0; - while ((ch = getopt(argc, argv, "PpRr")) != -1) { + *aflag = *fflag = *rflag = *pflag = 0; + while ((ch = getopt(argc, argv, "afPpRr")) != -1) { switch (ch) { + case 'a': + *aflag = 1; + break; + case 'f': + *fflag = 1; + break; case 'p': case 'P': *pflag = 1; @@ -402,6 +421,30 @@ parse_link_flags(const char *cmd, char **argv, int argc, int *sflag) } static int +parse_rename_flags(const char *cmd, char **argv, int argc, int *lflag) +{ + extern int opterr, optind, optopt, optreset; + int ch; + + optind = optreset = 1; + opterr = 0; + + *lflag = 0; + while ((ch = getopt(argc, argv, "l")) != -1) { + switch (ch) { + case 'l': + *lflag = 1; + break; + default: + error("%s: Invalid flag -%c", cmd, optopt); + return -1; + } + } + + return optind; +} + +static int parse_ls_flags(char **argv, int argc, int *lflag) { extern int opterr, optind, optopt, optreset; @@ -482,6 +525,26 @@ parse_df_flags(const char *cmd, char **argv, int argc, int *hflag, int *iflag) } static int +parse_no_flags(const char *cmd, char **argv, int argc) +{ + extern int opterr, optind, optopt, optreset; + int ch; + + optind = optreset = 1; + opterr = 0; + + while ((ch = getopt(argc, argv, "")) != -1) { + switch (ch) { + default: + error("%s: Invalid flag -%c", cmd, optopt); + return -1; + } + } + + return optind; +} + +static int is_dir(char *path) { struct stat sb; @@ -517,7 +580,7 @@ pathname_is_dir(char *pathname) static int process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, - int pflag, int rflag) + int pflag, int rflag, int resume, int fflag) { char *abs_src = NULL; char *abs_dst = NULL; @@ -551,7 +614,7 @@ process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, tmp = xstrdup(g.gl_pathv[i]); if ((filename = basename(tmp)) == NULL) { error("basename %s: %s", tmp, strerror(errno)); - xfree(tmp); + free(tmp); err = -1; goto out; } @@ -567,31 +630,37 @@ process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, } else { abs_dst = xstrdup(filename); } - xfree(tmp); + free(tmp); - printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst); + resume |= global_aflag; + if (!quiet && resume) + printf("Resuming %s to %s\n", g.gl_pathv[i], abs_dst); + else if (!quiet && !resume) + printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst); if (pathname_is_dir(g.gl_pathv[i]) && (rflag || global_rflag)) { - if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL, - pflag || global_pflag, 1) == -1) + if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL, + pflag || global_pflag, 1, resume, + fflag || global_fflag) == -1) err = -1; } else { if (do_download(conn, g.gl_pathv[i], abs_dst, NULL, - pflag || global_pflag) == -1) + pflag || global_pflag, resume, + fflag || global_fflag) == -1) err = -1; } - xfree(abs_dst); + free(abs_dst); abs_dst = NULL; } out: - xfree(abs_src); + free(abs_src); globfree(&g); return(err); } static int process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, - int pflag, int rflag) + int pflag, int rflag, int fflag) { char *tmp_dst = NULL; char *abs_dst = NULL; @@ -632,11 +701,11 @@ process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, error("stat %s: %s", g.gl_pathv[i], strerror(errno)); continue; } - + tmp = xstrdup(g.gl_pathv[i]); if ((filename = basename(tmp)) == NULL) { error("basename %s: %s", tmp, strerror(errno)); - xfree(tmp); + free(tmp); err = -1; goto out; } @@ -652,25 +721,26 @@ process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, } else { abs_dst = make_absolute(xstrdup(filename), pwd); } - xfree(tmp); + free(tmp); - printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst); + if (!quiet) + printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst); if (pathname_is_dir(g.gl_pathv[i]) && (rflag || global_rflag)) { if (upload_dir(conn, g.gl_pathv[i], abs_dst, - pflag || global_pflag, 1) == -1) + pflag || global_pflag, 1, + fflag || global_fflag) == -1) err = -1; } else { if (do_upload(conn, g.gl_pathv[i], abs_dst, - pflag || global_pflag) == -1) + pflag || global_pflag, + fflag || global_fflag) == -1) err = -1; } } out: - if (abs_dst) - xfree(abs_dst); - if (tmp_dst) - xfree(tmp_dst); + free(abs_dst); + free(tmp_dst); globfree(&g); return(err); } @@ -718,7 +788,7 @@ do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag) /* Add any subpath that also needs to be counted */ tmp = path_strip(path, strip_path); m += strlen(tmp); - xfree(tmp); + free(tmp); if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) width = ws.ws_col; @@ -744,7 +814,7 @@ do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag) tmp = path_append(path, d[n]->filename); fname = path_strip(tmp, strip_path); - xfree(tmp); + free(tmp); if (lflag & LS_LONG_VIEW) { if (lflag & (LS_NUMERIC_VIEW|LS_SI_UNITS)) { @@ -756,7 +826,7 @@ do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag) lname = ls_file(fname, &sb, 1, (lflag & LS_SI_UNITS)); printf("%s\n", lname); - xfree(lname); + free(lname); } else printf("%s\n", d[n]->longname); } else { @@ -768,7 +838,7 @@ do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag) c++; } - xfree(fname); + free(fname); } if (!(lflag & LS_LONG_VIEW) && (c != 1)) @@ -783,7 +853,6 @@ static int do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, int lflag) { - Attrib *a = NULL; char *fname, *lname; glob_t g; int err; @@ -829,7 +898,7 @@ do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, colspace = width / columns; } - for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) { + for (i = 0; g.gl_pathv[i] && !interrupted; i++) { fname = path_strip(g.gl_pathv[i], strip_path); if (lflag & LS_LONG_VIEW) { if (g.gl_statv[i] == NULL) { @@ -839,7 +908,7 @@ do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, lname = ls_file(fname, g.gl_statv[i], 1, (lflag & LS_SI_UNITS)); printf("%s\n", lname); - xfree(lname); + free(lname); } else { printf("%-*s", colspace, fname); if (c >= columns) { @@ -848,7 +917,7 @@ do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, } else c++; } - xfree(fname); + free(fname); } if (!(lflag & LS_LONG_VIEW) && (c != 1)) @@ -962,7 +1031,7 @@ undo_glob_escape(char *s) * * If "lastquote" is not NULL, the quoting character used for the last * argument is placed in *lastquote ("\0", "'" or "\""). - * + * * If "terminated" is not NULL, *terminated will be set to 1 when the * last argument's quote has been properly terminated or 0 otherwise. * This parameter is only of use if "sloppy" is set. @@ -992,7 +1061,11 @@ makeargv(const char *arg, int *argcp, int sloppy, char *lastquote, state = MA_START; i = j = 0; for (;;) { - if (isspace(arg[i])) { + if ((size_t)argc >= sizeof(argv) / sizeof(*argv)){ + error("Too many arguments."); + return NULL; + } + if (isspace((unsigned char)arg[i])) { if (state == MA_UNQUOTED) { /* Terminate current argument */ argvs[j++] = '\0'; @@ -1007,7 +1080,7 @@ makeargv(const char *arg, int *argcp, int sloppy, char *lastquote, state = q; if (lastquote != NULL) *lastquote = arg[i]; - } else if (state == MA_UNQUOTED) + } else if (state == MA_UNQUOTED) state = q; else if (state == q) state = MA_UNQUOTED; @@ -1113,8 +1186,9 @@ makeargv(const char *arg, int *argcp, int sloppy, char *lastquote, } static int -parse_args(const char **cpp, int *pflag, int *rflag, int *lflag, int *iflag, - int *hflag, int *sflag, unsigned long *n_arg, char **path1, char **path2) +parse_args(const char **cpp, int *ignore_errors, int *aflag, int *fflag, + int *hflag, int *iflag, int *lflag, int *pflag, int *rflag, int *sflag, + unsigned long *n_arg, char **path1, char **path2) { const char *cmd, *cp = *cpp; char *cp2, **argv; @@ -1126,9 +1200,9 @@ parse_args(const char **cpp, int *pflag, int *rflag, int *lflag, int *iflag, cp = cp + strspn(cp, WHITESPACE); /* Check for leading '-' (disable error processing) */ - *iflag = 0; + *ignore_errors = 0; if (*cp == '-') { - *iflag = 1; + *ignore_errors = 1; cp++; cp = cp + strspn(cp, WHITESPACE); } @@ -1142,7 +1216,7 @@ parse_args(const char **cpp, int *pflag, int *rflag, int *lflag, int *iflag, /* Figure out which command we have */ for (i = 0; cmds[i].c != NULL; i++) { - if (strcasecmp(cmds[i].c, argv[0]) == 0) + if (argv[0] != NULL && strcasecmp(cmds[i].c, argv[0]) == 0) break; } cmdnum = cmds[i].n; @@ -1158,14 +1232,16 @@ parse_args(const char **cpp, int *pflag, int *rflag, int *lflag, int *iflag, } /* Get arguments and parse flags */ - *lflag = *pflag = *rflag = *hflag = *n_arg = 0; + *aflag = *fflag = *hflag = *iflag = *lflag = *pflag = 0; + *rflag = *sflag = 0; *path1 = *path2 = NULL; optidx = 1; switch (cmdnum) { case I_GET: + case I_REGET: case I_PUT: if ((optidx = parse_getput_flags(cmd, argv, argc, - pflag, rflag)) == -1) + aflag, fflag, pflag, rflag)) == -1) return -1; /* Get first pathname (mandatory) */ if (argc - optidx < 1) { @@ -1180,12 +1256,24 @@ parse_args(const char **cpp, int *pflag, int *rflag, int *lflag, int *iflag, /* Destination is not globbed */ undo_glob_escape(*path2); } + if (*aflag && cmdnum == I_PUT) { + /* XXX implement resume for uploads */ + error("Resume is not supported for uploads"); + return -1; + } break; case I_LINK: if ((optidx = parse_link_flags(cmd, argv, argc, sflag)) == -1) return -1; - case I_SYMLINK: + goto parse_two_paths; case I_RENAME: + if ((optidx = parse_rename_flags(cmd, argv, argc, lflag)) == -1) + return -1; + goto parse_two_paths; + case I_SYMLINK: + if ((optidx = parse_no_flags(cmd, argv, argc)) == -1) + return -1; + parse_two_paths: if (argc - optidx < 2) { error("You must specify two paths after a %s " "command.", cmd); @@ -1203,6 +1291,8 @@ parse_args(const char **cpp, int *pflag, int *rflag, int *lflag, int *iflag, case I_CHDIR: case I_LCHDIR: case I_LMKDIR: + if ((optidx = parse_no_flags(cmd, argv, argc)) == -1) + return -1; /* Get pathname (mandatory) */ if (argc - optidx < 1) { error("You must specify a path after a %s command.", @@ -1244,6 +1334,8 @@ parse_args(const char **cpp, int *pflag, int *rflag, int *lflag, int *iflag, base = 8; case I_CHOWN: case I_CHGRP: + if ((optidx = parse_no_flags(cmd, argv, argc)) == -1) + return -1; /* Get numeric arg (mandatory) */ if (argc - optidx < 1) goto need_num_arg; @@ -1274,6 +1366,8 @@ parse_args(const char **cpp, int *pflag, int *rflag, int *lflag, int *iflag, case I_HELP: case I_VERSION: case I_PROGRESS: + if ((optidx = parse_no_flags(cmd, argv, argc)) == -1) + return -1; break; default: fatal("Command not implemented"); @@ -1288,7 +1382,8 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, int err_abort) { char *path1, *path2, *tmp; - int pflag = 0, rflag = 0, lflag = 0, iflag = 0, hflag = 0, sflag = 0; + int ignore_errors = 0, aflag = 0, fflag = 0, hflag = 0, iflag = 0; + int lflag = 0, pflag = 0, rflag = 0, sflag = 0; int cmdnum, i; unsigned long n_arg = 0; Attrib a, *aa; @@ -1297,10 +1392,9 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, glob_t g; path1 = path2 = NULL; - cmdnum = parse_args(&cmd, &pflag, &rflag, &lflag, &iflag, &hflag, - &sflag, &n_arg, &path1, &path2); - - if (iflag != 0) + cmdnum = parse_args(&cmd, &ignore_errors, &aflag, &fflag, &hflag, + &iflag, &lflag, &pflag, &rflag, &sflag, &n_arg, &path1, &path2); + if (ignore_errors != 0) err_abort = 0; memset(&g, 0, sizeof(g)); @@ -1314,21 +1408,27 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, /* Unrecognized command */ err = -1; break; + case I_REGET: + aflag = 1; + /* FALLTHROUGH */ case I_GET: - err = process_get(conn, path1, path2, *pwd, pflag, rflag); + err = process_get(conn, path1, path2, *pwd, pflag, + rflag, aflag, fflag); break; case I_PUT: - err = process_put(conn, path1, path2, *pwd, pflag, rflag); + err = process_put(conn, path1, path2, *pwd, pflag, + rflag, fflag); break; case I_RENAME: path1 = make_absolute(path1, *pwd); path2 = make_absolute(path2, *pwd); - err = do_rename(conn, path1, path2); + err = do_rename(conn, path1, path2, lflag); break; case I_SYMLINK: sflag = 1; case I_LINK: - path1 = make_absolute(path1, *pwd); + if (!sflag) + path1 = make_absolute(path1, *pwd); path2 = make_absolute(path2, *pwd); err = (sflag ? do_symlink : do_hardlink)(conn, path1, path2); break; @@ -1336,7 +1436,8 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, path1 = make_absolute(path1, *pwd); remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); for (i = 0; g.gl_pathv[i] && !interrupted; i++) { - printf("Removing %s\n", g.gl_pathv[i]); + if (!quiet) + printf("Removing %s\n", g.gl_pathv[i]); err = do_rm(conn, g.gl_pathv[i]); if (err != 0 && err_abort) break; @@ -1360,24 +1461,24 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, break; } if ((aa = do_stat(conn, tmp, 0)) == NULL) { - xfree(tmp); + free(tmp); err = 1; break; } if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) { error("Can't change directory: Can't check target"); - xfree(tmp); + free(tmp); err = 1; break; } if (!S_ISDIR(aa->perm)) { error("Can't change directory: \"%s\" is not " "a directory", tmp); - xfree(tmp); + free(tmp); err = 1; break; } - xfree(*pwd); + free(*pwd); *pwd = tmp; break; case I_LS: @@ -1432,7 +1533,8 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, a.perm = n_arg; remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); for (i = 0; g.gl_pathv[i] && !interrupted; i++) { - printf("Changing mode on %s\n", g.gl_pathv[i]); + if (!quiet) + printf("Changing mode on %s\n", g.gl_pathv[i]); err = do_setstat(conn, g.gl_pathv[i], &a); if (err != 0 && err_abort) break; @@ -1461,10 +1563,14 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, } aa->flags &= SSH2_FILEXFER_ATTR_UIDGID; if (cmdnum == I_CHOWN) { - printf("Changing owner on %s\n", g.gl_pathv[i]); + if (!quiet) + printf("Changing owner on %s\n", + g.gl_pathv[i]); aa->uid = n_arg; } else { - printf("Changing group on %s\n", g.gl_pathv[i]); + if (!quiet) + printf("Changing group on %s\n", + g.gl_pathv[i]); aa->gid = n_arg; } err = do_setstat(conn, g.gl_pathv[i], aa); @@ -1505,10 +1611,8 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, if (g.gl_pathc) globfree(&g); - if (path1) - xfree(path1); - if (path2) - xfree(path2); + free(path1); + free(path2); /* If an unignored error occurs in batch mode we should abort. */ if (err_abort && err != 0) @@ -1535,7 +1639,7 @@ complete_display(char **list, u_int len) char *tmp; /* Count entries for sort and find longest */ - for (y = 0; list[y]; y++) + for (y = 0; list[y]; y++) m = MAX(m, strlen(list[y])); if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) @@ -1580,8 +1684,8 @@ complete_ambiguous(const char *word, char **list, size_t count) for (y = 1; list[y]; y++) { u_int x; - for (x = 0; x < matchlen; x++) - if (list[0][x] != list[y][x]) + for (x = 0; x < matchlen; x++) + if (list[0][x] != list[y][x]) break; matchlen = x; @@ -1593,7 +1697,7 @@ complete_ambiguous(const char *word, char **list, size_t count) tmp[matchlen] = '\0'; return tmp; } - } + } return xstrdup(word); } @@ -1613,26 +1717,26 @@ complete_cmd_parse(EditLine *el, char *cmd, int lastarg, char quote, if (cmd == NULL) { for (y = 0; cmds[y].c; y++) list[count++] = xstrdup(cmds[y].c); - + list[count] = NULL; complete_display(list, 0); - for (y = 0; list[y] != NULL; y++) - xfree(list[y]); - xfree(list); + for (y = 0; list[y] != NULL; y++) + free(list[y]); + free(list); return count; } /* Prepare subset of commands that start with "cmd" */ cmdlen = strlen(cmd); for (y = 0; cmds[y].c; y++) { - if (!strncasecmp(cmd, cmds[y].c, cmdlen)) + if (!strncasecmp(cmd, cmds[y].c, cmdlen)) list[count++] = xstrdup(cmds[y].c); } list[count] = NULL; if (count == 0) { - xfree(list); + free(list); return 0; } @@ -1641,9 +1745,9 @@ complete_cmd_parse(EditLine *el, char *cmd, int lastarg, char quote, if (count > 1) complete_display(list, 0); - for (y = 0; list[y]; y++) - xfree(list[y]); - xfree(list); + for (y = 0; list[y]; y++) + free(list[y]); + free(list); if (tmp != NULL) { tmplen = strlen(tmp); @@ -1664,7 +1768,7 @@ complete_cmd_parse(EditLine *el, char *cmd, int lastarg, char quote, if (y > 0 && el_insertstr(el, argterm) == -1) fatal("el_insertstr failed."); } - xfree(tmp); + free(tmp); } return count; @@ -1682,7 +1786,7 @@ complete_is_remote(char *cmd) { return -1; for (i = 0; cmds[i].c; i++) { - if (!strncasecmp(cmd, cmds[i].c, strlen(cmds[i].c))) + if (!strncasecmp(cmd, cmds[i].c, strlen(cmds[i].c))) return cmds[i].t; } @@ -1695,23 +1799,27 @@ complete_match(EditLine *el, struct sftp_conn *conn, char *remote_path, char *file, int remote, int lastarg, char quote, int terminated) { glob_t g; - char *tmp, *tmp2, ins[3]; - u_int i, hadglob, pwdlen, len, tmplen, filelen; + char *tmp, *tmp2, ins[8]; + u_int i, hadglob, pwdlen, len, tmplen, filelen, cesc, isesc, isabs; + int clen; const LineInfo *lf; - + /* Glob from "file" location */ if (file == NULL) tmp = xstrdup("*"); else xasprintf(&tmp, "%s*", file); + /* Check if the path is absolute. */ + isabs = tmp[0] == '/'; + memset(&g, 0, sizeof(g)); if (remote != LOCAL) { tmp = make_absolute(tmp, remote_path); remote_glob(conn, tmp, GLOB_DOOFFS|GLOB_MARK, NULL, &g); - } else + } else glob(tmp, GLOB_DOOFFS|GLOB_MARK, NULL, &g); - + /* Determine length of pwd so we can trim completion display */ for (hadglob = tmplen = pwdlen = 0; tmp[tmplen] != 0; tmplen++) { /* Terminate counting on first unescaped glob metacharacter */ @@ -1725,9 +1833,9 @@ complete_match(EditLine *el, struct sftp_conn *conn, char *remote_path, if (tmp[tmplen] == '/') pwdlen = tmplen + 1; /* track last seen '/' */ } - xfree(tmp); + free(tmp); - if (g.gl_matchc == 0) + if (g.gl_matchc == 0) goto out; if (g.gl_matchc > 1) @@ -1739,8 +1847,8 @@ complete_match(EditLine *el, struct sftp_conn *conn, char *remote_path, goto out; tmp2 = complete_ambiguous(file, g.gl_pathv, g.gl_matchc); - tmp = path_strip(tmp2, remote_path); - xfree(tmp2); + tmp = path_strip(tmp2, isabs ? NULL : remote_path); + free(tmp2); if (tmp == NULL) goto out; @@ -1748,14 +1856,27 @@ complete_match(EditLine *el, struct sftp_conn *conn, char *remote_path, tmplen = strlen(tmp); filelen = strlen(file); - if (tmplen > filelen) { - tmp2 = tmp + filelen; - len = strlen(tmp2); + /* Count the number of escaped characters in the input string. */ + cesc = isesc = 0; + for (i = 0; i < filelen; i++) { + if (!isesc && file[i] == '\\' && i + 1 < filelen){ + isesc = 1; + cesc++; + } else + isesc = 0; + } + + if (tmplen > (filelen - cesc)) { + tmp2 = tmp + filelen - cesc; + len = strlen(tmp2); /* quote argument on way out */ - for (i = 0; i < len; i++) { + for (i = 0; i < len; i += clen) { + if ((clen = mblen(tmp2 + i, len - i)) < 0 || + (size_t)clen > sizeof(ins) - 2) + fatal("invalid multibyte character"); ins[0] = '\\'; - ins[1] = tmp2[i]; - ins[2] = '\0'; + memcpy(ins + 1, tmp2 + i, clen); + ins[clen + 1] = '\0'; switch (tmp2[i]) { case '\'': case '"': @@ -1763,6 +1884,8 @@ complete_match(EditLine *el, struct sftp_conn *conn, char *remote_path, case '\t': case '[': case ' ': + case '#': + case '*': if (quote == '\0' || tmp2[i] == quote) { if (el_insertstr(el, ins) == -1) fatal("el_insertstr " @@ -1790,7 +1913,7 @@ complete_match(EditLine *el, struct sftp_conn *conn, char *remote_path, if (i > 0 && el_insertstr(el, ins) == -1) fatal("el_insertstr failed."); } - xfree(tmp); + free(tmp); out: globfree(&g); @@ -1801,8 +1924,9 @@ complete_match(EditLine *el, struct sftp_conn *conn, char *remote_path, static unsigned char complete(EditLine *el, int ch) { - char **argv, *line, quote; - u_int argc, carg, cursor, len, terminated, ret = CC_ERROR; + char **argv, *line, quote; + int argc, carg; + u_int cursor, len, terminated, ret = CC_ERROR; const LineInfo *lf; struct complete_ctx *complete_ctx; @@ -1816,7 +1940,7 @@ complete(EditLine *el, int ch) memcpy(line, lf->buffer, cursor); line[cursor] = '\0'; argv = makeargv(line, &carg, 1, "e, &terminated); - xfree(line); + free(line); /* Get all the arguments on the line */ len = lf->lastchar - lf->buffer; @@ -1828,7 +1952,7 @@ complete(EditLine *el, int ch) /* Ensure cursor is at EOL or a argument boundary */ if (line[cursor] != ' ' && line[cursor] != '\0' && line[cursor] != '\n') { - xfree(line); + free(line); return ret; } @@ -1839,7 +1963,7 @@ complete(EditLine *el, int ch) } else if (carg == 1 && cursor > 0 && line[cursor - 1] != ' ') { /* Handle the command parsing */ if (complete_cmd_parse(el, argv[0], argc == carg, - quote, terminated) != 0) + quote, terminated) != 0) ret = CC_REDISPLAY; } else if (carg >= 1) { /* Handle file parsing */ @@ -1852,11 +1976,11 @@ complete(EditLine *el, int ch) if (remote != 0 && complete_match(el, complete_ctx->conn, *complete_ctx->remote_pathp, filematch, - remote, carg == argc, quote, terminated) != 0) + remote, carg == argc, quote, terminated) != 0) ret = CC_REDISPLAY; } - xfree(line); + free(line); return ret; } #endif /* USE_LIBEDIT */ @@ -1890,12 +2014,19 @@ interactive_loop(struct sftp_conn *conn, char *file1, char *file2) el_source(el, NULL); /* Tab Completion */ - el_set(el, EL_ADDFN, "ftp-complete", + el_set(el, EL_ADDFN, "ftp-complete", "Context sensitive argument completion", complete); complete_ctx.conn = conn; complete_ctx.remote_pathp = &remote_path; el_set(el, EL_CLIENTDATA, (void*)&complete_ctx); el_set(el, EL_BIND, "^I", "ftp-complete", NULL); + /* enable ctrl-left-arrow and ctrl-right-arrow */ + el_set(el, EL_BIND, "\\e[1;5C", "em-next-word", NULL); + el_set(el, EL_BIND, "\\e[5C", "em-next-word", NULL); + el_set(el, EL_BIND, "\\e[1;5D", "ed-prev-word", NULL); + el_set(el, EL_BIND, "\\e\\e[D", "ed-prev-word", NULL); + /* make ^w match ksh behaviour */ + el_set(el, EL_BIND, "^w", "ed-delete-prev-word", NULL); } #endif /* USE_LIBEDIT */ @@ -1908,39 +2039,34 @@ interactive_loop(struct sftp_conn *conn, char *file1, char *file2) dir = make_absolute(dir, remote_path); if (remote_is_dir(conn, dir) && file2 == NULL) { - printf("Changing to: %s\n", dir); + if (!quiet) + printf("Changing to: %s\n", dir); snprintf(cmd, sizeof cmd, "cd \"%s\"", dir); if (parse_dispatch_command(conn, cmd, &remote_path, 1) != 0) { - xfree(dir); - xfree(remote_path); - xfree(conn); + free(dir); + free(remote_path); + free(conn); return (-1); } } else { - if (file2 == NULL) - snprintf(cmd, sizeof cmd, "get %s", dir); - else - snprintf(cmd, sizeof cmd, "get %s %s", dir, - file2); - + /* XXX this is wrong wrt quoting */ + snprintf(cmd, sizeof cmd, "get%s %s%s%s", + global_aflag ? " -a" : "", dir, + file2 == NULL ? "" : " ", + file2 == NULL ? "" : file2); err = parse_dispatch_command(conn, cmd, &remote_path, 1); - xfree(dir); - xfree(remote_path); - xfree(conn); + free(dir); + free(remote_path); + free(conn); return (err); } - xfree(dir); + free(dir); } -#if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF) - setvbuf(stdout, NULL, _IOLBF, 0); - setvbuf(infile, NULL, _IOLBF, 0); -#else setlinebuf(stdout); setlinebuf(infile); -#endif interactive = !batchmode && isatty(STDIN_FILENO); err = 0; @@ -1994,8 +2120,8 @@ interactive_loop(struct sftp_conn *conn, char *file1, char *file2) if (err != 0) break; } - xfree(remote_path); - xfree(conn); + free(remote_path); + free(conn); #ifdef USE_LIBEDIT if (el != NULL) @@ -2069,7 +2195,7 @@ usage(void) extern char *__progname; fprintf(stderr, - "usage: %s [-1246Cpqrv] [-B buffer_size] [-b batchfile] [-c cipher]\n" + "usage: %s [-1246aCfpqrv] [-B buffer_size] [-b batchfile] [-c cipher]\n" " [-D sftp_server_path] [-F ssh_config] " "[-i identity_file] [-l limit]\n" " [-o ssh_option] [-P port] [-R num_requests] " @@ -2102,6 +2228,7 @@ main(int argc, char **argv) /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ sanitise_stdfd(); + setlocale(LC_CTYPE, ""); __progname = ssh_get_progname(argv[0]); memset(&args, '\0', sizeof(args)); @@ -2116,7 +2243,7 @@ main(int argc, char **argv) infile = stdin; while ((ch = getopt(argc, argv, - "1246hpqrvCc:D:i:l:o:s:S:b:B:F:P:R:")) != -1) { + "1246afhpqrvCc:D:i:l:o:s:S:b:B:F:P:R:")) != -1) { switch (ch) { /* Passed through to ssh(1) */ case '4': @@ -2133,6 +2260,8 @@ main(int argc, char **argv) addargs(&args, "%s", optarg); break; case 'q': + ll = SYSLOG_LEVEL_ERROR; + quiet = 1; showprogress = 0; addargs(&args, "-%c", ch); break; @@ -2154,6 +2283,9 @@ main(int argc, char **argv) case '2': sshver = 2; break; + case 'a': + global_aflag = 1; + break; case 'B': copy_buffer_len = strtol(optarg, &cp, 10); if (copy_buffer_len == 0 || *cp != '\0') @@ -2168,9 +2300,12 @@ main(int argc, char **argv) (infile = fopen(optarg, "r")) == NULL) fatal("%s (%s).", strerror(errno), optarg); showprogress = 0; - batchmode = 1; + quiet = batchmode = 1; addargs(&args, "-obatchmode yes"); break; + case 'f': + global_fflag = 1; + break; case 'p': global_pflag = 1; break; @@ -2265,7 +2400,7 @@ main(int argc, char **argv) if (conn == NULL) fatal("Couldn't initialise connection to server"); - if (!batchmode) { + if (!quiet) { if (sftp_direct == NULL) fprintf(stderr, "Connected to %s.\n", host); else diff --git a/smult_curve25519_ref.c b/smult_curve25519_ref.c new file mode 100644 index 00000000..2e69934d --- /dev/null +++ b/smult_curve25519_ref.c @@ -0,0 +1,265 @@ +/* $OpenBSD: smult_curve25519_ref.c,v 1.2 2013/11/02 22:02:14 markus Exp $ */ +/* +version 20081011 +Matthew Dempsky +Public domain. +Derived from public domain code by D. J. Bernstein. +*/ + +int crypto_scalarmult_curve25519(unsigned char *, const unsigned char *, const unsigned char *); + +static void add(unsigned int out[32],const unsigned int a[32],const unsigned int b[32]) +{ + unsigned int j; + unsigned int u; + u = 0; + for (j = 0;j < 31;++j) { u += a[j] + b[j]; out[j] = u & 255; u >>= 8; } + u += a[31] + b[31]; out[31] = u; +} + +static void sub(unsigned int out[32],const unsigned int a[32],const unsigned int b[32]) +{ + unsigned int j; + unsigned int u; + u = 218; + for (j = 0;j < 31;++j) { + u += a[j] + 65280 - b[j]; + out[j] = u & 255; + u >>= 8; + } + u += a[31] - b[31]; + out[31] = u; +} + +static void squeeze(unsigned int a[32]) +{ + unsigned int j; + unsigned int u; + u = 0; + for (j = 0;j < 31;++j) { u += a[j]; a[j] = u & 255; u >>= 8; } + u += a[31]; a[31] = u & 127; + u = 19 * (u >> 7); + for (j = 0;j < 31;++j) { u += a[j]; a[j] = u & 255; u >>= 8; } + u += a[31]; a[31] = u; +} + +static const unsigned int minusp[32] = { + 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128 +} ; + +static void freeze(unsigned int a[32]) +{ + unsigned int aorig[32]; + unsigned int j; + unsigned int negative; + + for (j = 0;j < 32;++j) aorig[j] = a[j]; + add(a,a,minusp); + negative = -((a[31] >> 7) & 1); + for (j = 0;j < 32;++j) a[j] ^= negative & (aorig[j] ^ a[j]); +} + +static void mult(unsigned int out[32],const unsigned int a[32],const unsigned int b[32]) +{ + unsigned int i; + unsigned int j; + unsigned int u; + + for (i = 0;i < 32;++i) { + u = 0; + for (j = 0;j <= i;++j) u += a[j] * b[i - j]; + for (j = i + 1;j < 32;++j) u += 38 * a[j] * b[i + 32 - j]; + out[i] = u; + } + squeeze(out); +} + +static void mult121665(unsigned int out[32],const unsigned int a[32]) +{ + unsigned int j; + unsigned int u; + + u = 0; + for (j = 0;j < 31;++j) { u += 121665 * a[j]; out[j] = u & 255; u >>= 8; } + u += 121665 * a[31]; out[31] = u & 127; + u = 19 * (u >> 7); + for (j = 0;j < 31;++j) { u += out[j]; out[j] = u & 255; u >>= 8; } + u += out[j]; out[j] = u; +} + +static void square(unsigned int out[32],const unsigned int a[32]) +{ + unsigned int i; + unsigned int j; + unsigned int u; + + for (i = 0;i < 32;++i) { + u = 0; + for (j = 0;j < i - j;++j) u += a[j] * a[i - j]; + for (j = i + 1;j < i + 32 - j;++j) u += 38 * a[j] * a[i + 32 - j]; + u *= 2; + if ((i & 1) == 0) { + u += a[i / 2] * a[i / 2]; + u += 38 * a[i / 2 + 16] * a[i / 2 + 16]; + } + out[i] = u; + } + squeeze(out); +} + +static void select(unsigned int p[64],unsigned int q[64],const unsigned int r[64],const unsigned int s[64],unsigned int b) +{ + unsigned int j; + unsigned int t; + unsigned int bminus1; + + bminus1 = b - 1; + for (j = 0;j < 64;++j) { + t = bminus1 & (r[j] ^ s[j]); + p[j] = s[j] ^ t; + q[j] = r[j] ^ t; + } +} + +static void mainloop(unsigned int work[64],const unsigned char e[32]) +{ + unsigned int xzm1[64]; + unsigned int xzm[64]; + unsigned int xzmb[64]; + unsigned int xzm1b[64]; + unsigned int xznb[64]; + unsigned int xzn1b[64]; + unsigned int a0[64]; + unsigned int a1[64]; + unsigned int b0[64]; + unsigned int b1[64]; + unsigned int c1[64]; + unsigned int r[32]; + unsigned int s[32]; + unsigned int t[32]; + unsigned int u[32]; + unsigned int j; + unsigned int b; + int pos; + + for (j = 0;j < 32;++j) xzm1[j] = work[j]; + xzm1[32] = 1; + for (j = 33;j < 64;++j) xzm1[j] = 0; + + xzm[0] = 1; + for (j = 1;j < 64;++j) xzm[j] = 0; + + for (pos = 254;pos >= 0;--pos) { + b = e[pos / 8] >> (pos & 7); + b &= 1; + select(xzmb,xzm1b,xzm,xzm1,b); + add(a0,xzmb,xzmb + 32); + sub(a0 + 32,xzmb,xzmb + 32); + add(a1,xzm1b,xzm1b + 32); + sub(a1 + 32,xzm1b,xzm1b + 32); + square(b0,a0); + square(b0 + 32,a0 + 32); + mult(b1,a1,a0 + 32); + mult(b1 + 32,a1 + 32,a0); + add(c1,b1,b1 + 32); + sub(c1 + 32,b1,b1 + 32); + square(r,c1 + 32); + sub(s,b0,b0 + 32); + mult121665(t,s); + add(u,t,b0); + mult(xznb,b0,b0 + 32); + mult(xznb + 32,s,u); + square(xzn1b,c1); + mult(xzn1b + 32,r,work); + select(xzm,xzm1,xznb,xzn1b,b); + } + + for (j = 0;j < 64;++j) work[j] = xzm[j]; +} + +static void recip(unsigned int out[32],const unsigned int z[32]) +{ + unsigned int z2[32]; + unsigned int z9[32]; + unsigned int z11[32]; + unsigned int z2_5_0[32]; + unsigned int z2_10_0[32]; + unsigned int z2_20_0[32]; + unsigned int z2_50_0[32]; + unsigned int z2_100_0[32]; + unsigned int t0[32]; + unsigned int t1[32]; + int i; + + /* 2 */ square(z2,z); + /* 4 */ square(t1,z2); + /* 8 */ square(t0,t1); + /* 9 */ mult(z9,t0,z); + /* 11 */ mult(z11,z9,z2); + /* 22 */ square(t0,z11); + /* 2^5 - 2^0 = 31 */ mult(z2_5_0,t0,z9); + + /* 2^6 - 2^1 */ square(t0,z2_5_0); + /* 2^7 - 2^2 */ square(t1,t0); + /* 2^8 - 2^3 */ square(t0,t1); + /* 2^9 - 2^4 */ square(t1,t0); + /* 2^10 - 2^5 */ square(t0,t1); + /* 2^10 - 2^0 */ mult(z2_10_0,t0,z2_5_0); + + /* 2^11 - 2^1 */ square(t0,z2_10_0); + /* 2^12 - 2^2 */ square(t1,t0); + /* 2^20 - 2^10 */ for (i = 2;i < 10;i += 2) { square(t0,t1); square(t1,t0); } + /* 2^20 - 2^0 */ mult(z2_20_0,t1,z2_10_0); + + /* 2^21 - 2^1 */ square(t0,z2_20_0); + /* 2^22 - 2^2 */ square(t1,t0); + /* 2^40 - 2^20 */ for (i = 2;i < 20;i += 2) { square(t0,t1); square(t1,t0); } + /* 2^40 - 2^0 */ mult(t0,t1,z2_20_0); + + /* 2^41 - 2^1 */ square(t1,t0); + /* 2^42 - 2^2 */ square(t0,t1); + /* 2^50 - 2^10 */ for (i = 2;i < 10;i += 2) { square(t1,t0); square(t0,t1); } + /* 2^50 - 2^0 */ mult(z2_50_0,t0,z2_10_0); + + /* 2^51 - 2^1 */ square(t0,z2_50_0); + /* 2^52 - 2^2 */ square(t1,t0); + /* 2^100 - 2^50 */ for (i = 2;i < 50;i += 2) { square(t0,t1); square(t1,t0); } + /* 2^100 - 2^0 */ mult(z2_100_0,t1,z2_50_0); + + /* 2^101 - 2^1 */ square(t1,z2_100_0); + /* 2^102 - 2^2 */ square(t0,t1); + /* 2^200 - 2^100 */ for (i = 2;i < 100;i += 2) { square(t1,t0); square(t0,t1); } + /* 2^200 - 2^0 */ mult(t1,t0,z2_100_0); + + /* 2^201 - 2^1 */ square(t0,t1); + /* 2^202 - 2^2 */ square(t1,t0); + /* 2^250 - 2^50 */ for (i = 2;i < 50;i += 2) { square(t0,t1); square(t1,t0); } + /* 2^250 - 2^0 */ mult(t0,t1,z2_50_0); + + /* 2^251 - 2^1 */ square(t1,t0); + /* 2^252 - 2^2 */ square(t0,t1); + /* 2^253 - 2^3 */ square(t1,t0); + /* 2^254 - 2^4 */ square(t0,t1); + /* 2^255 - 2^5 */ square(t1,t0); + /* 2^255 - 21 */ mult(out,t1,z11); +} + +int crypto_scalarmult_curve25519(unsigned char *q, + const unsigned char *n, + const unsigned char *p) +{ + unsigned int work[96]; + unsigned char e[32]; + unsigned int i; + for (i = 0;i < 32;++i) e[i] = n[i]; + e[0] &= 248; + e[31] &= 127; + e[31] |= 64; + for (i = 0;i < 32;++i) work[i] = p[i]; + mainloop(work,e); + recip(work + 32,work + 32); + mult(work + 64,work,work + 32); + freeze(work + 64); + for (i = 0;i < 32;++i) q[i] = work[64 + i]; + return 0; +} @@ -1,4 +1,4 @@ -.\" $OpenBSD: ssh-add.1,v 1.56 2011/10/18 05:00:48 djm Exp $ +.\" $OpenBSD: ssh-add.1,v 1.59 2013/12/07 11:58:46 naddy Exp $ .\" .\" Author: Tatu Ylonen <ylo@cs.hut.fi> .\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -35,7 +35,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: October 18 2011 $ +.Dd $Mdocdate: December 7 2013 $ .Dt SSH-ADD 1 .Os .Sh NAME @@ -57,7 +57,8 @@ adds private key identities to the authentication agent, When run without arguments, it adds the files .Pa ~/.ssh/id_rsa , .Pa ~/.ssh/id_dsa , -.Pa ~/.ssh/id_ecdsa +.Pa ~/.ssh/id_ecdsa , +.Pa ~/.ssh/id_ed25519 and .Pa ~/.ssh/identity . After loading a private key, @@ -98,10 +99,10 @@ Deletes all identities from the agent. Instead of adding identities, removes identities from the agent. If .Nm -has been run without arguments, the keys for the default identities will -be removed. +has been run without arguments, the keys for the default identities and +their corresponding certificates will be removed. Otherwise, the argument list will be interpreted as a list of paths to -public key files and matching keys will be removed from the agent. +public key files to specify keys and certificates to be removed from the agent. If no public key is found at a given path, .Nm will append @@ -111,8 +112,8 @@ and retry. Remove keys provided by the PKCS#11 shared library .Ar pkcs11 . .It Fl k -When loading keys into the agent, load plain private keys only and skip -certificates. +When loading keys into or deleting keys from the agent, process plain private +keys only and skip certificates. .It Fl L Lists public key parameters of all identities currently represented by the agent. @@ -169,6 +170,8 @@ Contains the protocol version 1 RSA authentication identity of the user. Contains the protocol version 2 DSA authentication identity of the user. .It Pa ~/.ssh/id_ecdsa Contains the protocol version 2 ECDSA authentication identity of the user. +.It Pa ~/.ssh/id_ed25519 +Contains the protocol version 2 ED25519 authentication identity of the user. .It Pa ~/.ssh/id_rsa Contains the protocol version 2 RSA authentication identity of the user. .El @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-add.c,v 1.103 2011/10/18 23:37:42 djm Exp $ */ +/* $OpenBSD: ssh-add.c,v 1.108 2013/12/19 00:10:30 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -73,6 +73,7 @@ static char *default_files[] = { #ifdef OPENSSL_HAS_ECC _PATH_SSH_CLIENT_ID_ECDSA, #endif + _PATH_SSH_CLIENT_ID_ED25519, _PATH_SSH_CLIENT_IDENTITY, NULL }; @@ -90,16 +91,16 @@ clear_pass(void) { if (pass) { memset(pass, 0, strlen(pass)); - xfree(pass); + free(pass); pass = NULL; } } static int -delete_file(AuthenticationConnection *ac, const char *filename) +delete_file(AuthenticationConnection *ac, const char *filename, int key_only) { - Key *public; - char *comment = NULL; + Key *public = NULL, *cert = NULL; + char *certpath = NULL, *comment = NULL; int ret = -1; public = key_load_public(filename, &comment); @@ -113,8 +114,33 @@ delete_file(AuthenticationConnection *ac, const char *filename) } else fprintf(stderr, "Could not remove identity: %s\n", filename); - key_free(public); - xfree(comment); + if (key_only) + goto out; + + /* Now try to delete the corresponding certificate too */ + free(comment); + comment = NULL; + xasprintf(&certpath, "%s-cert.pub", filename); + if ((cert = key_load_public(certpath, &comment)) == NULL) + goto out; + if (!key_equal_public(cert, public)) + fatal("Certificate %s does not match private key %s", + certpath, filename); + + if (ssh_remove_identity(ac, cert)) { + fprintf(stderr, "Identity removed: %s (%s)\n", certpath, + comment); + ret = 0; + } else + fprintf(stderr, "Could not remove identity: %s\n", certpath); + + out: + if (cert != NULL) + key_free(cert); + if (public != NULL) + key_free(public); + free(certpath); + free(comment); return ret; } @@ -190,7 +216,7 @@ add_file(AuthenticationConnection *ac, const char *filename, int key_only) pass = read_passphrase(msg, RP_ALLOW_STDIN); if (strcmp(pass, "") == 0) { clear_pass(); - xfree(comment); + free(comment); buffer_free(&keyblob); return -1; } @@ -257,8 +283,8 @@ add_file(AuthenticationConnection *ac, const char *filename, int key_only) fprintf(stderr, "The user must confirm each use of the key\n"); out: if (certpath != NULL) - xfree(certpath); - xfree(comment); + free(certpath); + free(comment); key_free(private); return ret; @@ -267,14 +293,17 @@ add_file(AuthenticationConnection *ac, const char *filename, int key_only) static int update_card(AuthenticationConnection *ac, int add, const char *id) { - char *pin; + char *pin = NULL; int ret = -1; - pin = read_passphrase("Enter passphrase for PKCS#11: ", RP_ALLOW_STDIN); - if (pin == NULL) - return -1; + if (add) { + if ((pin = read_passphrase("Enter passphrase for PKCS#11: ", + RP_ALLOW_STDIN)) == NULL) + return -1; + } - if (ssh_update_card(ac, add, id, pin, lifetime, confirm)) { + if (ssh_update_card(ac, add, id, pin == NULL ? "" : pin, + lifetime, confirm)) { fprintf(stderr, "Card %s: %s\n", add ? "added" : "removed", id); ret = 0; @@ -283,7 +312,7 @@ update_card(AuthenticationConnection *ac, int add, const char *id) add ? "add" : "remove", id); ret = -1; } - xfree(pin); + free(pin); return ret; } @@ -305,14 +334,14 @@ list_identities(AuthenticationConnection *ac, int do_fp) SSH_FP_HEX); printf("%d %s %s (%s)\n", key_size(key), fp, comment, key_type(key)); - xfree(fp); + free(fp); } else { if (!key_write(key, stdout)) fprintf(stderr, "key_write failed"); fprintf(stdout, " %s\n", comment); } key_free(key); - xfree(comment); + free(comment); } } if (!had_identities) { @@ -338,7 +367,7 @@ lock_agent(AuthenticationConnection *ac, int lock) passok = 0; } memset(p2, 0, strlen(p2)); - xfree(p2); + free(p2); } if (passok && ssh_lock_agent(ac, lock, p1)) { fprintf(stderr, "Agent %slocked.\n", lock ? "" : "un"); @@ -346,7 +375,7 @@ lock_agent(AuthenticationConnection *ac, int lock) } else fprintf(stderr, "Failed to %slock agent.\n", lock ? "" : "un"); memset(p1, 0, strlen(p1)); - xfree(p1); + free(p1); return (ret); } @@ -354,7 +383,7 @@ static int do_file(AuthenticationConnection *ac, int deleting, int key_only, char *file) { if (deleting) { - if (delete_file(ac, file) == -1) + if (delete_file(ac, file, key_only) == -1) return -1; } else { if (add_file(ac, file, key_only) == -1) diff --git a/ssh-agent.1 b/ssh-agent.1 index bb801c90..281ecbdc 100644 --- a/ssh-agent.1 +++ b/ssh-agent.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: ssh-agent.1,v 1.53 2010/11/21 01:01:13 djm Exp $ +.\" $OpenBSD: ssh-agent.1,v 1.54 2013/12/07 11:58:46 naddy Exp $ .\" .\" Author: Tatu Ylonen <ylo@cs.hut.fi> .\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -34,7 +34,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: November 21 2010 $ +.Dd $Mdocdate: December 7 2013 $ .Dt SSH-AGENT 1 .Os .Sh NAME @@ -53,7 +53,7 @@ .Sh DESCRIPTION .Nm is a program to hold private keys used for public key authentication -(RSA, DSA, ECDSA). +(RSA, DSA, ECDSA, ED25519). The idea is that .Nm is started in the beginning of an X-session or a login session, and @@ -115,7 +115,8 @@ When executed without arguments, adds the files .Pa ~/.ssh/id_rsa , .Pa ~/.ssh/id_dsa , -.Pa ~/.ssh/id_ecdsa +.Pa ~/.ssh/id_ecdsa , +.Pa ~/.ssh/id_ed25519 and .Pa ~/.ssh/identity . If the identity has a passphrase, @@ -190,6 +191,8 @@ Contains the protocol version 1 RSA authentication identity of the user. Contains the protocol version 2 DSA authentication identity of the user. .It Pa ~/.ssh/id_ecdsa Contains the protocol version 2 ECDSA authentication identity of the user. +.It Pa ~/.ssh/id_ed25519 +Contains the protocol version 2 ED25519 authentication identity of the user. .It Pa ~/.ssh/id_rsa Contains the protocol version 2 RSA authentication identity of the user. .It Pa $TMPDIR/ssh-XXXXXXXXXX/agent.\*(Ltppid\*(Gt diff --git a/ssh-agent.c b/ssh-agent.c index b9498e6e..95117e07 100644 --- a/ssh-agent.c +++ b/ssh-agent.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-agent.c,v 1.172 2011/06/03 01:37:40 dtucker Exp $ */ +/* $OpenBSD: ssh-agent.c,v 1.181 2013/12/19 01:19:41 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -106,7 +106,7 @@ typedef struct identity { Key *key; char *comment; char *provider; - u_int death; + time_t death; u_int confirm; } Identity; @@ -122,7 +122,7 @@ int max_fd = 0; /* pid of shell == parent of agent */ pid_t parent_pid = -1; -u_int parent_alive_interval = 0; +time_t parent_alive_interval = 0; /* pathname and directory for AUTH_SOCKET */ char socket_name[MAXPATHLEN]; @@ -134,8 +134,8 @@ char *lock_passwd = NULL; extern char *__progname; -/* Default lifetime (0 == forever) */ -static int lifetime = 0; +/* Default lifetime in seconds (0 == forever) */ +static long lifetime = 0; static void close_socket(SocketEntry *e) @@ -172,10 +172,9 @@ static void free_identity(Identity *id) { key_free(id->key); - if (id->provider != NULL) - xfree(id->provider); - xfree(id->comment); - xfree(id); + free(id->provider); + free(id->comment); + free(id); } /* return matching private key for given public key */ @@ -203,7 +202,7 @@ confirm_key(Identity *id) if (ask_permission("Allow use of key %s?\nKey fingerprint %s.", id->comment, p)) ret = 0; - xfree(p); + free(p); return (ret); } @@ -230,7 +229,7 @@ process_request_identities(SocketEntry *e, int version) u_int blen; key_to_blob(id->key, &blob, &blen); buffer_put_string(&msg, blob, blen); - xfree(blob); + free(blob); } buffer_put_cstring(&msg, id->comment); } @@ -348,10 +347,9 @@ process_sign_request2(SocketEntry *e) buffer_append(&e->output, buffer_ptr(&msg), buffer_len(&msg)); buffer_free(&msg); - xfree(data); - xfree(blob); - if (signature != NULL) - xfree(signature); + free(data); + free(blob); + free(signature); datafellows = odatafellows; } @@ -378,7 +376,7 @@ process_remove_identity(SocketEntry *e, int version) case 2: blob = buffer_get_string(&e->request, &blen); key = key_from_blob(blob, blen); - xfree(blob); + free(blob); break; } if (key != NULL) { @@ -430,10 +428,10 @@ process_remove_all_identities(SocketEntry *e, int version) } /* removes expired keys and returns number of seconds until the next expiry */ -static u_int +static time_t reaper(void) { - u_int deadline = 0, now = time(NULL); + time_t deadline = 0, now = monotime(); Identity *id, *nxt; int version; Idtab *tab; @@ -465,16 +463,10 @@ process_add_identity(SocketEntry *e, int version) { Idtab *tab = idtab_lookup(version); Identity *id; - int type, success = 0, death = 0, confirm = 0; - char *type_name, *comment; + int type, success = 0, confirm = 0; + char *comment; + time_t death = 0; Key *k = NULL; -#ifdef OPENSSL_HAS_ECC - BIGNUM *exponent; - EC_POINT *q; - char *curve; -#endif - u_char *cert; - u_int len; switch (version) { case 1: @@ -491,135 +483,31 @@ process_add_identity(SocketEntry *e, int version) /* Generate additional parameters */ rsa_generate_additional_parameters(k->rsa); - break; - case 2: - type_name = buffer_get_string(&e->request, NULL); - type = key_type_from_name(type_name); - switch (type) { - case KEY_DSA: - k = key_new_private(type); - buffer_get_bignum2(&e->request, k->dsa->p); - buffer_get_bignum2(&e->request, k->dsa->q); - buffer_get_bignum2(&e->request, k->dsa->g); - buffer_get_bignum2(&e->request, k->dsa->pub_key); - buffer_get_bignum2(&e->request, k->dsa->priv_key); - break; - case KEY_DSA_CERT_V00: - case KEY_DSA_CERT: - cert = buffer_get_string(&e->request, &len); - if ((k = key_from_blob(cert, len)) == NULL) - fatal("Certificate parse failed"); - xfree(cert); - key_add_private(k); - buffer_get_bignum2(&e->request, k->dsa->priv_key); - break; -#ifdef OPENSSL_HAS_ECC - case KEY_ECDSA: - k = key_new_private(type); - k->ecdsa_nid = key_ecdsa_nid_from_name(type_name); - curve = buffer_get_string(&e->request, NULL); - if (k->ecdsa_nid != key_curve_name_to_nid(curve)) - fatal("%s: curve names mismatch", __func__); - xfree(curve); - k->ecdsa = EC_KEY_new_by_curve_name(k->ecdsa_nid); - if (k->ecdsa == NULL) - fatal("%s: EC_KEY_new_by_curve_name failed", - __func__); - q = EC_POINT_new(EC_KEY_get0_group(k->ecdsa)); - if (q == NULL) - fatal("%s: BN_new failed", __func__); - if ((exponent = BN_new()) == NULL) - fatal("%s: BN_new failed", __func__); - buffer_get_ecpoint(&e->request, - EC_KEY_get0_group(k->ecdsa), q); - buffer_get_bignum2(&e->request, exponent); - if (EC_KEY_set_public_key(k->ecdsa, q) != 1) - fatal("%s: EC_KEY_set_public_key failed", - __func__); - if (EC_KEY_set_private_key(k->ecdsa, exponent) != 1) - fatal("%s: EC_KEY_set_private_key failed", - __func__); - if (key_ec_validate_public(EC_KEY_get0_group(k->ecdsa), - EC_KEY_get0_public_key(k->ecdsa)) != 0) - fatal("%s: bad ECDSA public key", __func__); - if (key_ec_validate_private(k->ecdsa) != 0) - fatal("%s: bad ECDSA private key", __func__); - BN_clear_free(exponent); - EC_POINT_free(q); - break; - case KEY_ECDSA_CERT: - cert = buffer_get_string(&e->request, &len); - if ((k = key_from_blob(cert, len)) == NULL) - fatal("Certificate parse failed"); - xfree(cert); - key_add_private(k); - if ((exponent = BN_new()) == NULL) - fatal("%s: BN_new failed", __func__); - buffer_get_bignum2(&e->request, exponent); - if (EC_KEY_set_private_key(k->ecdsa, exponent) != 1) - fatal("%s: EC_KEY_set_private_key failed", - __func__); - if (key_ec_validate_public(EC_KEY_get0_group(k->ecdsa), - EC_KEY_get0_public_key(k->ecdsa)) != 0 || - key_ec_validate_private(k->ecdsa) != 0) - fatal("%s: bad ECDSA key", __func__); - BN_clear_free(exponent); - break; -#endif /* OPENSSL_HAS_ECC */ - case KEY_RSA: - k = key_new_private(type); - buffer_get_bignum2(&e->request, k->rsa->n); - buffer_get_bignum2(&e->request, k->rsa->e); - buffer_get_bignum2(&e->request, k->rsa->d); - buffer_get_bignum2(&e->request, k->rsa->iqmp); - buffer_get_bignum2(&e->request, k->rsa->p); - buffer_get_bignum2(&e->request, k->rsa->q); - - /* Generate additional parameters */ - rsa_generate_additional_parameters(k->rsa); - break; - case KEY_RSA_CERT_V00: - case KEY_RSA_CERT: - cert = buffer_get_string(&e->request, &len); - if ((k = key_from_blob(cert, len)) == NULL) - fatal("Certificate parse failed"); - xfree(cert); - key_add_private(k); - buffer_get_bignum2(&e->request, k->rsa->d); - buffer_get_bignum2(&e->request, k->rsa->iqmp); - buffer_get_bignum2(&e->request, k->rsa->p); - buffer_get_bignum2(&e->request, k->rsa->q); - break; - default: - xfree(type_name); - buffer_clear(&e->request); - goto send; - } - xfree(type_name); - break; - } - /* enable blinding */ - switch (k->type) { - case KEY_RSA: - case KEY_RSA_CERT_V00: - case KEY_RSA_CERT: - case KEY_RSA1: + + /* enable blinding */ if (RSA_blinding_on(k->rsa, NULL) != 1) { error("process_add_identity: RSA_blinding_on failed"); key_free(k); goto send; } break; + case 2: + k = key_private_deserialize(&e->request); + if (k == NULL) { + buffer_clear(&e->request); + goto send; + } + break; } comment = buffer_get_string(&e->request, NULL); if (k == NULL) { - xfree(comment); + free(comment); goto send; } while (buffer_len(&e->request)) { switch ((type = buffer_get_char(&e->request))) { case SSH_AGENT_CONSTRAIN_LIFETIME: - death = time(NULL) + buffer_get_int(&e->request); + death = monotime() + buffer_get_int(&e->request); break; case SSH_AGENT_CONSTRAIN_CONFIRM: confirm = 1; @@ -627,14 +515,14 @@ process_add_identity(SocketEntry *e, int version) default: error("process_add_identity: " "Unknown constraint type %d", type); - xfree(comment); + free(comment); key_free(k); goto send; } } success = 1; if (lifetime && !death) - death = time(NULL) + lifetime; + death = monotime() + lifetime; if ((id = lookup_identity(k, version)) == NULL) { id = xcalloc(1, sizeof(Identity)); id->key = k; @@ -643,7 +531,7 @@ process_add_identity(SocketEntry *e, int version) tab->nentries++; } else { key_free(k); - xfree(id->comment); + free(id->comment); } id->comment = comment; id->death = death; @@ -665,7 +553,7 @@ process_lock_agent(SocketEntry *e, int lock) if (locked && !lock && strcmp(passwd, lock_passwd) == 0) { locked = 0; memset(lock_passwd, 0, strlen(lock_passwd)); - xfree(lock_passwd); + free(lock_passwd); lock_passwd = NULL; success = 1; } else if (!locked && lock) { @@ -674,7 +562,7 @@ process_lock_agent(SocketEntry *e, int lock) success = 1; } memset(passwd, 0, strlen(passwd)); - xfree(passwd); + free(passwd); buffer_put_int(&e->output, 1); buffer_put_char(&e->output, @@ -701,7 +589,8 @@ static void process_add_smartcard_key(SocketEntry *e) { char *provider = NULL, *pin; - int i, type, version, count = 0, success = 0, death = 0, confirm = 0; + int i, type, version, count = 0, success = 0, confirm = 0; + time_t death = 0; Key **keys = NULL, *k; Identity *id; Idtab *tab; @@ -712,7 +601,7 @@ process_add_smartcard_key(SocketEntry *e) while (buffer_len(&e->request)) { switch ((type = buffer_get_char(&e->request))) { case SSH_AGENT_CONSTRAIN_LIFETIME: - death = time(NULL) + buffer_get_int(&e->request); + death = monotime() + buffer_get_int(&e->request); break; case SSH_AGENT_CONSTRAIN_CONFIRM: confirm = 1; @@ -724,7 +613,7 @@ process_add_smartcard_key(SocketEntry *e) } } if (lifetime && !death) - death = time(NULL) + lifetime; + death = monotime() + lifetime; count = pkcs11_add_provider(provider, pin, &keys); for (i = 0; i < count; i++) { @@ -747,12 +636,9 @@ process_add_smartcard_key(SocketEntry *e) keys[i] = NULL; } send: - if (pin) - xfree(pin); - if (provider) - xfree(provider); - if (keys) - xfree(keys); + free(pin); + free(provider); + free(keys); buffer_put_int(&e->output, 1); buffer_put_char(&e->output, success ? SSH_AGENT_SUCCESS : SSH_AGENT_FAILURE); @@ -768,12 +654,15 @@ process_remove_smartcard_key(SocketEntry *e) provider = buffer_get_string(&e->request, NULL); pin = buffer_get_string(&e->request, NULL); - xfree(pin); + free(pin); for (version = 1; version < 3; version++) { tab = idtab_lookup(version); for (id = TAILQ_FIRST(&tab->idlist); id; id = nxt) { nxt = TAILQ_NEXT(id, next); + /* Skip file--based keys */ + if (id->provider == NULL) + continue; if (!strcmp(provider, id->provider)) { TAILQ_REMOVE(&tab->idlist, id, next); free_identity(id); @@ -786,7 +675,7 @@ process_remove_smartcard_key(SocketEntry *e) else error("process_remove_smartcard_key:" " pkcs11_del_provider failed"); - xfree(provider); + free(provider); buffer_put_int(&e->output, 1); buffer_put_char(&e->output, success ? SSH_AGENT_SUCCESS : SSH_AGENT_FAILURE); @@ -931,9 +820,10 @@ static int prepare_select(fd_set **fdrp, fd_set **fdwp, int *fdl, u_int *nallocp, struct timeval **tvpp) { - u_int i, sz, deadline; + u_int i, sz; int n = 0; static struct timeval tv; + time_t deadline; for (i = 0; i < sockets_alloc; i++) { switch (sockets[i].type) { @@ -951,10 +841,8 @@ prepare_select(fd_set **fdrp, fd_set **fdwp, int *fdl, u_int *nallocp, sz = howmany(n+1, NFDBITS) * sizeof(fd_mask); if (*fdrp == NULL || sz > *nallocp) { - if (*fdrp) - xfree(*fdrp); - if (*fdwp) - xfree(*fdwp); + free(*fdrp); + free(*fdwp); *fdrp = xmalloc(sz); *fdwp = xmalloc(sz); *nallocp = sz; @@ -1348,9 +1236,8 @@ skip: if (ac > 0) parent_alive_interval = 10; idtab_init(); - if (!d_flag) - signal(SIGINT, SIG_IGN); signal(SIGPIPE, SIG_IGN); + signal(SIGINT, d_flag ? cleanup_handler : SIG_IGN); signal(SIGHUP, cleanup_handler); signal(SIGTERM, cleanup_handler); nalloc = 0; @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-dss.c,v 1.27 2010/08/31 09:58:37 djm Exp $ */ +/* $OpenBSD: ssh-dss.c,v 1.30 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * @@ -38,6 +38,7 @@ #include "compat.h" #include "log.h" #include "key.h" +#include "digest.h" #define INTBLOB_LEN 20 #define SIGBLOB_LEN (2*INTBLOB_LEN) @@ -47,20 +48,21 @@ ssh_dss_sign(const Key *key, u_char **sigp, u_int *lenp, const u_char *data, u_int datalen) { DSA_SIG *sig; - const EVP_MD *evp_md = EVP_sha1(); - EVP_MD_CTX md; - u_char digest[EVP_MAX_MD_SIZE], sigblob[SIGBLOB_LEN]; - u_int rlen, slen, len, dlen; + u_char digest[SSH_DIGEST_MAX_LENGTH], sigblob[SIGBLOB_LEN]; + u_int rlen, slen, len, dlen = ssh_digest_bytes(SSH_DIGEST_SHA1); Buffer b; - if (key == NULL || key->dsa == NULL || (key->type != KEY_DSA && - key->type != KEY_DSA_CERT && key->type != KEY_DSA_CERT_V00)) { - error("ssh_dss_sign: no DSA key"); + if (key == NULL || key_type_plain(key->type) != KEY_DSA || + key->dsa == NULL) { + error("%s: no DSA key", __func__); + return -1; + } + + if (ssh_digest_memory(SSH_DIGEST_SHA1, data, datalen, + digest, sizeof(digest)) != 0) { + error("%s: ssh_digest_memory failed", __func__); return -1; } - EVP_DigestInit(&md, evp_md); - EVP_DigestUpdate(&md, data, datalen); - EVP_DigestFinal(&md, digest, &dlen); sig = DSA_do_sign(digest, dlen, key->dsa); memset(digest, 'd', sizeof(digest)); @@ -110,16 +112,14 @@ ssh_dss_verify(const Key *key, const u_char *signature, u_int signaturelen, const u_char *data, u_int datalen) { DSA_SIG *sig; - const EVP_MD *evp_md = EVP_sha1(); - EVP_MD_CTX md; - u_char digest[EVP_MAX_MD_SIZE], *sigblob; - u_int len, dlen; + u_char digest[SSH_DIGEST_MAX_LENGTH], *sigblob; + u_int len, dlen = ssh_digest_bytes(SSH_DIGEST_SHA1); int rlen, ret; Buffer b; - if (key == NULL || key->dsa == NULL || (key->type != KEY_DSA && - key->type != KEY_DSA_CERT && key->type != KEY_DSA_CERT_V00)) { - error("ssh_dss_verify: no DSA key"); + if (key == NULL || key_type_plain(key->type) != KEY_DSA || + key->dsa == NULL) { + error("%s: no DSA key", __func__); return -1; } @@ -135,19 +135,19 @@ ssh_dss_verify(const Key *key, const u_char *signature, u_int signaturelen, buffer_append(&b, signature, signaturelen); ktype = buffer_get_cstring(&b, NULL); if (strcmp("ssh-dss", ktype) != 0) { - error("ssh_dss_verify: cannot handle type %s", ktype); + error("%s: cannot handle type %s", __func__, ktype); buffer_free(&b); - xfree(ktype); + free(ktype); return -1; } - xfree(ktype); + free(ktype); sigblob = buffer_get_string(&b, &len); rlen = buffer_len(&b); buffer_free(&b); if (rlen != 0) { - error("ssh_dss_verify: " - "remaining bytes in signature %d", rlen); - xfree(sigblob); + error("%s: remaining bytes in signature %d", + __func__, rlen); + free(sigblob); return -1; } } @@ -158,30 +158,32 @@ ssh_dss_verify(const Key *key, const u_char *signature, u_int signaturelen, /* parse signature */ if ((sig = DSA_SIG_new()) == NULL) - fatal("ssh_dss_verify: DSA_SIG_new failed"); + fatal("%s: DSA_SIG_new failed", __func__); if ((sig->r = BN_new()) == NULL) - fatal("ssh_dss_verify: BN_new failed"); + fatal("%s: BN_new failed", __func__); if ((sig->s = BN_new()) == NULL) fatal("ssh_dss_verify: BN_new failed"); if ((BN_bin2bn(sigblob, INTBLOB_LEN, sig->r) == NULL) || (BN_bin2bn(sigblob+ INTBLOB_LEN, INTBLOB_LEN, sig->s) == NULL)) - fatal("ssh_dss_verify: BN_bin2bn failed"); + fatal("%s: BN_bin2bn failed", __func__); /* clean up */ memset(sigblob, 0, len); - xfree(sigblob); + free(sigblob); /* sha1 the data */ - EVP_DigestInit(&md, evp_md); - EVP_DigestUpdate(&md, data, datalen); - EVP_DigestFinal(&md, digest, &dlen); + if (ssh_digest_memory(SSH_DIGEST_SHA1, data, datalen, + digest, sizeof(digest)) != 0) { + error("%s: digest_memory failed", __func__); + return -1; + } ret = DSA_do_verify(digest, dlen, sig, key->dsa); memset(digest, 'd', sizeof(digest)); DSA_SIG_free(sig); - debug("ssh_dss_verify: signature %s", + debug("%s: signature %s", __func__, ret == 1 ? "correct" : ret == 0 ? "incorrect" : "error"); return ret; } diff --git a/ssh-ecdsa.c b/ssh-ecdsa.c index 085468ee..10ad9da6 100644 --- a/ssh-ecdsa.c +++ b/ssh-ecdsa.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-ecdsa.c,v 1.5 2012/01/08 13:17:11 miod Exp $ */ +/* $OpenBSD: ssh-ecdsa.c,v 1.8 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * Copyright (c) 2010 Damien Miller. All rights reserved. @@ -42,27 +42,34 @@ #include "compat.h" #include "log.h" #include "key.h" +#include "digest.h" int ssh_ecdsa_sign(const Key *key, u_char **sigp, u_int *lenp, const u_char *data, u_int datalen) { ECDSA_SIG *sig; - const EVP_MD *evp_md; - EVP_MD_CTX md; - u_char digest[EVP_MAX_MD_SIZE]; + int hash_alg; + u_char digest[SSH_DIGEST_MAX_LENGTH]; u_int len, dlen; Buffer b, bb; - if (key == NULL || key->ecdsa == NULL || - (key->type != KEY_ECDSA && key->type != KEY_ECDSA_CERT)) { + if (key == NULL || key_type_plain(key->type) != KEY_ECDSA || + key->ecdsa == NULL) { error("%s: no ECDSA key", __func__); return -1; } - evp_md = key_ec_nid_to_evpmd(key->ecdsa_nid); - EVP_DigestInit(&md, evp_md); - EVP_DigestUpdate(&md, data, datalen); - EVP_DigestFinal(&md, digest, &dlen); + + hash_alg = key_ec_nid_to_hash_alg(key->ecdsa_nid); + if ((dlen = ssh_digest_bytes(hash_alg)) == 0) { + error("%s: bad hash algorithm %d", __func__, hash_alg); + return -1; + } + if (ssh_digest_memory(hash_alg, data, datalen, + digest, sizeof(digest)) != 0) { + error("%s: digest_memory failed", __func__); + return -1; + } sig = ECDSA_do_sign(digest, dlen, key->ecdsa); memset(digest, 'd', sizeof(digest)); @@ -97,20 +104,18 @@ ssh_ecdsa_verify(const Key *key, const u_char *signature, u_int signaturelen, const u_char *data, u_int datalen) { ECDSA_SIG *sig; - const EVP_MD *evp_md; - EVP_MD_CTX md; - u_char digest[EVP_MAX_MD_SIZE], *sigblob; + int hash_alg; + u_char digest[SSH_DIGEST_MAX_LENGTH], *sigblob; u_int len, dlen; int rlen, ret; Buffer b, bb; char *ktype; - if (key == NULL || key->ecdsa == NULL || - (key->type != KEY_ECDSA && key->type != KEY_ECDSA_CERT)) { + if (key == NULL || key_type_plain(key->type) != KEY_ECDSA || + key->ecdsa == NULL) { error("%s: no ECDSA key", __func__); return -1; } - evp_md = key_ec_nid_to_evpmd(key->ecdsa_nid); /* fetch signature */ buffer_init(&b); @@ -119,16 +124,16 @@ ssh_ecdsa_verify(const Key *key, const u_char *signature, u_int signaturelen, if (strcmp(key_ssh_name_plain(key), ktype) != 0) { error("%s: cannot handle type %s", __func__, ktype); buffer_free(&b); - xfree(ktype); + free(ktype); return -1; } - xfree(ktype); + free(ktype); sigblob = buffer_get_string(&b, &len); rlen = buffer_len(&b); buffer_free(&b); if (rlen != 0) { error("%s: remaining bytes in signature %d", __func__, rlen); - xfree(sigblob); + free(sigblob); return -1; } @@ -149,12 +154,19 @@ ssh_ecdsa_verify(const Key *key, const u_char *signature, u_int signaturelen, /* clean up */ memset(sigblob, 0, len); - xfree(sigblob); + free(sigblob); /* hash the data */ - EVP_DigestInit(&md, evp_md); - EVP_DigestUpdate(&md, data, datalen); - EVP_DigestFinal(&md, digest, &dlen); + hash_alg = key_ec_nid_to_hash_alg(key->ecdsa_nid); + if ((dlen = ssh_digest_bytes(hash_alg)) == 0) { + error("%s: bad hash algorithm %d", __func__, hash_alg); + return -1; + } + if (ssh_digest_memory(hash_alg, data, datalen, + digest, sizeof(digest)) != 0) { + error("%s: digest_memory failed", __func__); + return -1; + } ret = ECDSA_do_verify(digest, dlen, sig, key->ecdsa); memset(digest, 'd', sizeof(digest)); diff --git a/ssh-ed25519.c b/ssh-ed25519.c new file mode 100644 index 00000000..1aedcf83 --- /dev/null +++ b/ssh-ed25519.c @@ -0,0 +1,143 @@ +/* $OpenBSD: ssh-ed25519.c,v 1.1 2013/12/06 13:39:49 markus Exp $ */ +/* + * Copyright (c) 2013 Markus Friedl <markus@openbsd.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "includes.h" + +#include <sys/types.h> + +#include "crypto_api.h" + +#include <string.h> +#include <stdarg.h> + +#include "xmalloc.h" +#include "log.h" +#include "buffer.h" +#include "key.h" +#include "ssh.h" + +int +ssh_ed25519_sign(const Key *key, u_char **sigp, u_int *lenp, + const u_char *data, u_int datalen) +{ + u_char *sig; + u_int slen, len; + unsigned long long smlen; + int ret; + Buffer b; + + if (key == NULL || key_type_plain(key->type) != KEY_ED25519 || + key->ed25519_sk == NULL) { + error("%s: no ED25519 key", __func__); + return -1; + } + smlen = slen = datalen + crypto_sign_ed25519_BYTES; + sig = xmalloc(slen); + + if ((ret = crypto_sign_ed25519(sig, &smlen, data, datalen, + key->ed25519_sk)) != 0 || smlen <= datalen) { + error("%s: crypto_sign_ed25519 failed: %d", __func__, ret); + free(sig); + return -1; + } + /* encode signature */ + buffer_init(&b); + buffer_put_cstring(&b, "ssh-ed25519"); + buffer_put_string(&b, sig, smlen - datalen); + len = buffer_len(&b); + if (lenp != NULL) + *lenp = len; + if (sigp != NULL) { + *sigp = xmalloc(len); + memcpy(*sigp, buffer_ptr(&b), len); + } + buffer_free(&b); + memset(sig, 's', slen); + free(sig); + + return 0; +} + +int +ssh_ed25519_verify(const Key *key, const u_char *signature, u_int signaturelen, + const u_char *data, u_int datalen) +{ + Buffer b; + char *ktype; + u_char *sigblob, *sm, *m; + u_int len; + unsigned long long smlen, mlen; + int rlen, ret; + + if (key == NULL || key_type_plain(key->type) != KEY_ED25519 || + key->ed25519_pk == NULL) { + error("%s: no ED25519 key", __func__); + return -1; + } + buffer_init(&b); + buffer_append(&b, signature, signaturelen); + ktype = buffer_get_cstring(&b, NULL); + if (strcmp("ssh-ed25519", ktype) != 0) { + error("%s: cannot handle type %s", __func__, ktype); + buffer_free(&b); + free(ktype); + return -1; + } + free(ktype); + sigblob = buffer_get_string(&b, &len); + rlen = buffer_len(&b); + buffer_free(&b); + if (rlen != 0) { + error("%s: remaining bytes in signature %d", __func__, rlen); + free(sigblob); + return -1; + } + if (len > crypto_sign_ed25519_BYTES) { + error("%s: len %u > crypto_sign_ed25519_BYTES %u", __func__, + len, crypto_sign_ed25519_BYTES); + free(sigblob); + return -1; + } + smlen = len + datalen; + sm = xmalloc(smlen); + memcpy(sm, sigblob, len); + memcpy(sm+len, data, datalen); + mlen = smlen; + m = xmalloc(mlen); + if ((ret = crypto_sign_ed25519_open(m, &mlen, sm, smlen, + key->ed25519_pk)) != 0) { + debug2("%s: crypto_sign_ed25519_open failed: %d", + __func__, ret); + } + if (ret == 0 && mlen != datalen) { + debug2("%s: crypto_sign_ed25519_open " + "mlen != datalen (%llu != %u)", __func__, mlen, datalen); + ret = -1; + } + /* XXX compare 'm' and 'data' ? */ + + memset(sigblob, 's', len); + memset(sm, 'S', smlen); + memset(m, 'm', smlen); /* NB. mlen may be invalid if ret != 0 */ + free(sigblob); + free(sm); + free(m); + debug("%s: signature %scorrect", __func__, (ret != 0) ? "in" : ""); + + /* translate return code carefully */ + return (ret == 0) ? 1 : -1; +} @@ -42,12 +42,13 @@ # include <gssapi/gssapi_generic.h> # endif -/* MIT Kerberos doesn't seem to define GSS_NT_HOSTBASED_SERVICE */ +/* Old MIT Kerberos doesn't seem to define GSS_NT_HOSTBASED_SERVICE */ -#ifndef GSS_C_NT_HOSTBASED_SERVICE -#define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name -#endif /* GSS_C_NT_... */ -#endif /* !HEIMDAL */ +# if !HAVE_DECL_GSS_C_NT_HOSTBASED_SERVICE +# define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name +# endif /* !HAVE_DECL_GSS_C_NT_... */ + +# endif /* !HEIMDAL */ #endif /* KRB5 */ /* draft-ietf-secsh-gsskeyex-06 */ diff --git a/ssh-keygen.1 b/ssh-keygen.1 index 41da2077..0e0ed989 100644 --- a/ssh-keygen.1 +++ b/ssh-keygen.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: ssh-keygen.1,v 1.108 2011/10/16 11:02:46 dtucker Exp $ +.\" $OpenBSD: ssh-keygen.1,v 1.119 2013/12/21 07:10:47 tedu Exp $ .\" .\" Author: Tatu Ylonen <ylo@cs.hut.fi> .\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -35,7 +35,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: October 16 2011 $ +.Dd $Mdocdate: December 21 2013 $ .Dt SSH-KEYGEN 1 .Os .Sh NAME @@ -103,7 +103,9 @@ .Fl T Ar output_file .Fl f Ar input_file .Op Fl v -.Op Fl a Ar num_trials +.Op Fl a Ar rounds +.Op Fl J Ar num_lines +.Op Fl j Ar start_line .Op Fl K Ar checkpt .Op Fl W Ar generator .Nm ssh-keygen @@ -120,14 +122,25 @@ .Op Fl f Ar input_keyfile .Nm ssh-keygen .Fl A +.Nm ssh-keygen +.Fl k +.Fl f Ar krl_file +.Op Fl u +.Op Fl s Ar ca_public +.Op Fl z Ar version_number +.Ar +.Nm ssh-keygen +.Fl Q +.Fl f Ar krl_file +.Ar .Ek .Sh DESCRIPTION .Nm generates, manages and converts authentication keys for .Xr ssh 1 . .Nm -can create RSA keys for use by SSH protocol version 1 and DSA, ECDSA or RSA -keys for use by SSH protocol version 2. +can create RSA keys for use by SSH protocol version 1 and +DSA, ECDSA, ED25519 or RSA keys for use by SSH protocol version 2. The type of key to be generated is specified with the .Fl t option. @@ -142,12 +155,21 @@ See the .Sx MODULI GENERATION section for details. .Pp +Finally, +.Nm +can be used to generate and update Key Revocation Lists, and to test whether +given keys have been revoked by one. +See the +.Sx KEY REVOCATION LISTS +section for details. +.Pp Normally each user wishing to use SSH with public key authentication runs this once to create the authentication key in .Pa ~/.ssh/identity , +.Pa ~/.ssh/id_dsa , .Pa ~/.ssh/id_ecdsa , -.Pa ~/.ssh/id_dsa +.Pa ~/.ssh/id_ed25519 or .Pa ~/.ssh/id_rsa . Additionally, the system administrator may use this to generate host keys, @@ -195,17 +217,27 @@ should be placed to be activated. The options are as follows: .Bl -tag -width Ds .It Fl A -For each of the key types (rsa1, rsa, dsa and ecdsa) for which host keys +For each of the key types (rsa1, rsa, dsa, ecdsa and ed25519) +for which host keys do not exist, generate the host keys with the default key file path, an empty passphrase, default bits for the key type, and default comment. This is used by .Pa /etc/rc to generate new host keys. -.It Fl a Ar trials -Specifies the number of primality tests to perform when screening DH-GEX -candidates using the +.It Fl a Ar rounds +When saving a new-format private key (i.e. an ed25519 key or any SSH protocol +2 key when the +.Fl o +flag is set), this option specifies the number of KDF (key derivation function) +rounds used. +Higher numbers result in slower passphrase verification and increased +resistance to brute-force password cracking (should the keys be stolen). +.Pp +When screening DH-GEX candidates ( +using the .Fl T -command. +command). +This option specifies the number of primality tests to perform. .It Fl B Show the bubblebabble digest of specified private or public key file. .It Fl b Ar bits @@ -219,6 +251,9 @@ flag determines the key length by selecting from one of three elliptic curve sizes: 256, 384 or 521 bits. Attempting to use bit lengths other than these three values for ECDSA keys will fail. +ED25519 keys have a fixed length and the +.Fl b +flag will be ignored. .It Fl C Ar comment Provides a new comment. .It Fl c @@ -297,6 +332,16 @@ in the format specified by the .Fl m option and print an OpenSSH compatible private (or public) key to stdout. +.It Fl J Ar num_lines +Exit after screening the specified number of lines +while performing DH candidate screening using the +.Fl T +option. +.It Fl j Ar start_line +Start screening at the specified line number +while performing DH candidate screening using the +.Fl T +option. .It Fl K Ar checkpt Write the last line processed to the file .Ar checkpt @@ -309,6 +354,17 @@ This option allows importing keys from other software, including several commercial SSH implementations. The default import format is .Dq RFC4716 . +.It Fl k +Generate a KRL file. +In this mode, +.Nm +will generate a KRL file at the location specified via the +.Fl f +flag that revokes every key or certificate presented on the command line. +Keys/certificates to be revoked may be specified by public key file or +using the format described in the +.Sx KEY REVOCATION LISTS +section. .It Fl L Prints the contents of a certificate. .It Fl l @@ -405,6 +461,14 @@ format. .El .Pp At present, no options are valid for host keys. +.It Fl o +Causes +.Nm +to save SSH protocol 2 private keys using the new OpenSSH format rather than +the more compatible PEM format. +The new format has increased resistance to brute-force password cracking +but is not supported by versions of OpenSSH prior to 6.5. +Ed25519 keys always use the new private key format. .It Fl P Ar passphrase Provides the (old) passphrase. .It Fl p @@ -413,6 +477,8 @@ creating a new private key. The program will prompt for the file containing the private key, for the old passphrase, and twice for the new passphrase. +.It Fl Q +Test whether keys have been revoked in a KRL. .It Fl q Silence .Nm ssh-keygen . @@ -436,6 +502,14 @@ Certify (sign) a public key using the specified CA key. Please see the .Sx CERTIFICATES section for details. +.Pp +When generating a KRL, +.Fl s +specifies a path to a CA public key file used to revoke certificates directly +by key ID or serial number. +See the +.Sx KEY REVOCATION LISTS +section for details. .It Fl T Ar output_file Test DH group exchange candidate primes (generated using the .Fl G @@ -446,10 +520,17 @@ The possible values are .Dq rsa1 for protocol version 1 and .Dq dsa , -.Dq ecdsa +.Dq ecdsa , +.Dq ed25519 , or .Dq rsa for protocol version 2. +.It Fl u +Update a KRL. +When specified with +.Fl k , +keys listed via the command line are added to the existing KRL rather than +a new KRL being created. .It Fl V Ar validity_interval Specify a validity interval when signing a certificate. A validity interval may consist of a single time, indicating that the @@ -458,8 +539,7 @@ of two times separated by a colon to indicate an explicit time interval. The start time may be specified as a date in YYYYMMDD format, a time in YYYYMMDDHHMMSS format or a relative time (to the current time) consisting of a minus sign followed by a relative time in the format described in the -.Sx TIME FORMATS -section of +TIME FORMATS section of .Xr sshd_config 5 . The end time may be specified as a YYYYMMDD date, a YYYYMMDDHHMMSS time or a relative time starting with a plus character. @@ -492,6 +572,10 @@ OpenSSH format file and print an OpenSSH public key to stdout. Specifies a serial number to be embedded in the certificate to distinguish this certificate from others from the same CA. The default serial number is zero. +.Pp +When generating a KRL, the +.Fl z +flag is used to specify a KRL version number. .El .Sh MODULI GENERATION .Nm @@ -518,7 +602,7 @@ This may be overridden using the .Fl S option, which specifies a different start point (in hex). .Pp -Once a set of candidates have been generated, they must be tested for +Once a set of candidates have been generated, they must be screened for suitability. This may be performed using the .Fl T @@ -616,7 +700,9 @@ The option allows specification of certificate start and end times. A certificate that is presented at a time outside this range will not be considered valid. -By default, certificates have a maximum validity interval. +By default, certificates are valid from +.Ux +Epoch to the distant future. .Pp For certificates to be used for user or host authentication, the CA public key must be trusted by @@ -624,6 +710,73 @@ public key must be trusted by or .Xr ssh 1 . Please refer to those manual pages for details. +.Sh KEY REVOCATION LISTS +.Nm +is able to manage OpenSSH format Key Revocation Lists (KRLs). +These binary files specify keys or certificates to be revoked using a +compact format, taking as little as one bit per certificate if they are being +revoked by serial number. +.Pp +KRLs may be generated using the +.Fl k +flag. +This option reads one or more files from the command line and generates a new +KRL. +The files may either contain a KRL specification (see below) or public keys, +listed one per line. +Plain public keys are revoked by listing their hash or contents in the KRL and +certificates revoked by serial number or key ID (if the serial is zero or +not available). +.Pp +Revoking keys using a KRL specification offers explicit control over the +types of record used to revoke keys and may be used to directly revoke +certificates by serial number or key ID without having the complete original +certificate on hand. +A KRL specification consists of lines containing one of the following directives +followed by a colon and some directive-specific information. +.Bl -tag -width Ds +.It Cm serial : Ar serial_number Ns Op - Ns Ar serial_number +Revokes a certificate with the specified serial number. +Serial numbers are 64-bit values, not including zero and may be expressed +in decimal, hex or octal. +If two serial numbers are specified separated by a hyphen, then the range +of serial numbers including and between each is revoked. +The CA key must have been specified on the +.Nm +command line using the +.Fl s +option. +.It Cm id : Ar key_id +Revokes a certificate with the specified key ID string. +The CA key must have been specified on the +.Nm +command line using the +.Fl s +option. +.It Cm key : Ar public_key +Revokes the specified key. +If a certificate is listed, then it is revoked as a plain public key. +.It Cm sha1 : Ar public_key +Revokes the specified key by its SHA1 hash. +.El +.Pp +KRLs may be updated using the +.Fl u +flag in addition to +.Fl k . +When this option is specified, keys listed via the command line are merged into +the KRL, adding to those already there. +.Pp +It is also possible, given a KRL, to test whether it revokes a particular key +(or keys). +The +.Fl Q +flag will query an existing KRL, testing each key specified on the commandline. +If any key listed on the command line has been revoked (or an error encountered) +then +.Nm +will exit with a non-zero exit status. +A zero exit status will only be returned if no key was revoked. .Sh FILES .Bl -tag -width Ds -compact .It Pa ~/.ssh/identity @@ -648,8 +801,10 @@ There is no need to keep the contents of this file secret. .Pp .It Pa ~/.ssh/id_dsa .It Pa ~/.ssh/id_ecdsa +.It Pa ~/.ssh/id_ed25519 .It Pa ~/.ssh/id_rsa -Contains the protocol version 2 DSA, ECDSA or RSA authentication identity of the user. +Contains the protocol version 2 DSA, ECDSA, ED25519 or RSA +authentication identity of the user. This file should not be readable by anyone but the user. It is possible to specify a passphrase when generating the key; that passphrase will be @@ -662,8 +817,10 @@ will read this file when a login attempt is made. .Pp .It Pa ~/.ssh/id_dsa.pub .It Pa ~/.ssh/id_ecdsa.pub +.It Pa ~/.ssh/id_ed25519.pub .It Pa ~/.ssh/id_rsa.pub -Contains the protocol version 2 DSA, ECDSA or RSA public key for authentication. +Contains the protocol version 2 DSA, ECDSA, ED25519 or RSA +public key for authentication. The contents of this file should be added to .Pa ~/.ssh/authorized_keys on all machines diff --git a/ssh-keygen.c b/ssh-keygen.c index 5fcd3a15..eae83a46 100644 --- a/ssh-keygen.c +++ b/ssh-keygen.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-keygen.c,v 1.212 2011/10/16 15:02:41 jmc Exp $ */ +/* $OpenBSD: ssh-keygen.c,v 1.238 2013/12/06 13:39:49 markus Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -48,8 +48,11 @@ #include "match.h" #include "hostfile.h" #include "dns.h" +#include "ssh.h" #include "ssh2.h" #include "ssh-pkcs11.h" +#include "atomicio.h" +#include "krl.h" /* Number of bits in the RSA/DSA key. This value can be set on the command line. */ #define DEFAULT_BITS 2048 @@ -104,7 +107,7 @@ char *identity_comment = NULL; char *ca_key_path = NULL; /* Certificate serial number */ -long long cert_serial = 0; +unsigned long long cert_serial = 0; /* Key type when certifying */ u_int cert_key_type = SSH2_CERT_TYPE_USER; @@ -147,6 +150,18 @@ char *key_type_name = NULL; /* Load key from this PKCS#11 provider */ char *pkcs11provider = NULL; +/* Use new OpenSSH private key format when writing SSH2 keys instead of PEM */ +int use_new_format = 0; + +/* Cipher for new-format private keys */ +char *new_format_cipher = NULL; + +/* + * Number of KDF rounds to derive new format keys / + * number of primality trials when screening moduli. + */ +int rounds = 0; + /* argv0 */ extern char *__progname; @@ -154,7 +169,8 @@ char hostname[MAXHOSTNAMELEN]; /* moduli.c */ int gen_candidates(FILE *, u_int32_t, u_int32_t, BIGNUM *); -int prime_test(FILE *, FILE *, u_int32_t, u_int32_t, char *); +int prime_test(FILE *, FILE *, u_int32_t, u_int32_t, char *, unsigned long, + unsigned long); static void type_bits_valid(int type, u_int32_t *bitsp) @@ -181,7 +197,7 @@ type_bits_valid(int type, u_int32_t *bitsp) } if (type == KEY_DSA && *bitsp != 1024) fatal("DSA keys must be 1024 bits"); - else if (type != KEY_ECDSA && *bitsp < 768) + else if (type != KEY_ECDSA && type != KEY_ED25519 && *bitsp < 768) fatal("Key must at least be 768 bits"); else if (type == KEY_ECDSA && key_ecdsa_bits_to_nid(*bitsp) == -1) fatal("Invalid ECDSA key length - valid lengths are " @@ -217,6 +233,10 @@ ask_filename(struct passwd *pw, const char *prompt) case KEY_RSA: name = _PATH_SSH_CLIENT_ID_RSA; break; + case KEY_ED25519: + case KEY_ED25519_CERT: + name = _PATH_SSH_CLIENT_ID_ED25519; + break; default: fprintf(stderr, "bad key type\n"); exit(1); @@ -248,7 +268,7 @@ load_identity(char *filename) RP_ALLOW_STDIN); prv = key_load_private(filename, pass, NULL); memset(pass, 0, strlen(pass)); - xfree(pass); + free(pass); } return prv; } @@ -265,6 +285,10 @@ do_convert_to_ssh2(struct passwd *pw, Key *k) u_char *blob; char comment[61]; + if (k->type == KEY_RSA1) { + fprintf(stderr, "version 1 keys are not supported\n"); + exit(1); + } if (key_to_blob(k, &blob, &len) <= 0) { fprintf(stderr, "key_to_blob failed\n"); exit(1); @@ -280,7 +304,7 @@ do_convert_to_ssh2(struct passwd *pw, Key *k) dump_base64(stdout, blob, len); fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); key_free(k); - xfree(blob); + free(blob); exit(0); } @@ -288,6 +312,7 @@ static void do_convert_to_pkcs8(Key *k) { switch (key_type_plain(k->type)) { + case KEY_RSA1: case KEY_RSA: if (!PEM_write_RSA_PUBKEY(stdout, k->rsa)) fatal("PEM_write_RSA_PUBKEY failed"); @@ -312,6 +337,7 @@ static void do_convert_to_pem(Key *k) { switch (key_type_plain(k->type)) { + case KEY_RSA1: case KEY_RSA: if (!PEM_write_RSAPublicKey(stdout, k->rsa)) fatal("PEM_write_RSAPublicKey failed"); @@ -345,10 +371,6 @@ do_convert_to(struct passwd *pw) exit(1); } } - if (k->type == KEY_RSA1) { - fprintf(stderr, "version 1 keys are not supported\n"); - exit(1); - } switch (convert_format) { case FMT_RFC4716: @@ -409,12 +431,12 @@ do_convert_private_ssh2_from_blob(u_char *blob, u_int blen) debug("ignore (%d %d %d %d)", i1, i2, i3, i4); if (strcmp(cipher, "none") != 0) { error("unsupported cipher %s", cipher); - xfree(cipher); + free(cipher); buffer_free(&b); - xfree(type); + free(type); return NULL; } - xfree(cipher); + free(cipher); if (strstr(type, "dsa")) { ktype = KEY_DSA; @@ -422,11 +444,11 @@ do_convert_private_ssh2_from_blob(u_char *blob, u_int blen) ktype = KEY_RSA; } else { buffer_free(&b); - xfree(type); + free(type); return NULL; } key = key_new_private(ktype); - xfree(type); + free(type); switch (key->type) { case KEY_DSA: @@ -469,7 +491,7 @@ do_convert_private_ssh2_from_blob(u_char *blob, u_int blen) /* try the key */ key_sign(key, &sig, &slen, data, sizeof(data)); key_verify(key, sig, slen, data, sizeof(data)); - xfree(sig); + free(sig); return key; } @@ -518,7 +540,7 @@ do_convert_from_ssh2(struct passwd *pw, Key **k, int *private) fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); encoded[0] = '\0'; while ((blen = get_line(fp, line, sizeof(line))) != -1) { - if (line[blen - 1] == '\\') + if (blen > 0 && line[blen - 1] == '\\') escaped++; if (strncmp(line, "----", 4) == 0 || strstr(line, ": ") != NULL) { @@ -720,17 +742,35 @@ do_download(struct passwd *pw) #ifdef ENABLE_PKCS11 Key **keys = NULL; int i, nkeys; + enum fp_rep rep; + enum fp_type fptype; + char *fp, *ra; + + fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5; + rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_HEX; pkcs11_init(0); nkeys = pkcs11_add_provider(pkcs11provider, NULL, &keys); if (nkeys <= 0) fatal("cannot read public key from pkcs11"); for (i = 0; i < nkeys; i++) { - key_write(keys[i], stdout); + if (print_fingerprint) { + fp = key_fingerprint(keys[i], fptype, rep); + ra = key_fingerprint(keys[i], SSH_FP_MD5, + SSH_FP_RANDOMART); + printf("%u %s %s (PKCS11 key)\n", key_size(keys[i]), + fp, key_type(keys[i])); + if (log_level >= SYSLOG_LEVEL_VERBOSE) + printf("%s\n", ra); + free(ra); + free(fp); + } else { + key_write(keys[i], stdout); + fprintf(stdout, "\n"); + } key_free(keys[i]); - fprintf(stdout, "\n"); } - xfree(keys); + free(keys); pkcs11_terminate(); exit(0); #else @@ -767,13 +807,13 @@ do_fingerprint(struct passwd *pw) if (log_level >= SYSLOG_LEVEL_VERBOSE) printf("%s\n", ra); key_free(public); - xfree(comment); - xfree(ra); - xfree(fp); + free(comment); + free(ra); + free(fp); exit(0); } if (comment) { - xfree(comment); + free(comment); comment = NULL; } @@ -832,8 +872,8 @@ do_fingerprint(struct passwd *pw) comment ? comment : "no comment", key_type(public)); if (log_level >= SYSLOG_LEVEL_VERBOSE) printf("%s\n", ra); - xfree(ra); - xfree(fp); + free(ra); + free(fp); key_free(public); invalid = 0; } @@ -860,6 +900,7 @@ do_gen_all_hostkeys(struct passwd *pw) #ifdef OPENSSL_HAS_ECC { "ecdsa", "ECDSA",_PATH_HOST_ECDSA_KEY_FILE }, #endif + { "ed25519", "ED25519",_PATH_HOST_ED25519_KEY_FILE }, { NULL, NULL, NULL } }; @@ -886,7 +927,6 @@ do_gen_all_hostkeys(struct passwd *pw) } printf("%s ", key_types[i].key_type_display); fflush(stdout); - arc4random_stir(); type = key_type_from_name(key_types[i].key_type); strlcpy(identity_file, key_types[i].path, sizeof(identity_file)); bits = 0; @@ -900,7 +940,8 @@ do_gen_all_hostkeys(struct passwd *pw) public = key_from_private(private); snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, hostname); - if (!key_save_private(private, identity_file, "", comment)) { + if (!key_save_private(private, identity_file, "", comment, + use_new_format, new_format_cipher, rounds)) { printf("Saving the key failed: %s.\n", identity_file); key_free(private); key_free(public); @@ -908,7 +949,6 @@ do_gen_all_hostkeys(struct passwd *pw) continue; } key_free(private); - arc4random_stir(); strlcat(identity_file, ".pub", sizeof(identity_file)); fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); if (fd == -1) { @@ -956,8 +996,8 @@ printhost(FILE *f, const char *name, Key *public, int ca, int hash) key_type(public)); if (log_level >= SYSLOG_LEVEL_VERBOSE) printf("%s\n", ra); - xfree(ra); - xfree(fp); + free(ra); + free(fp); } else { if (hash && (name = host_hash(name, NULL, 0)) == NULL) fatal("hash_host failed"); @@ -977,13 +1017,14 @@ do_known_hosts(struct passwd *pw, const char *name) char line[16*1024], tmp[MAXPATHLEN], old[MAXPATHLEN]; int c, skip = 0, inplace = 0, num = 0, invalid = 0, has_unhashed = 0; int ca; + int found_key = 0; if (!have_identity) { cp = tilde_expand_filename(_PATH_SSH_USER_HOSTFILE, pw->pw_uid); if (strlcpy(identity_file, cp, sizeof(identity_file)) >= sizeof(identity_file)) fatal("Specified known hosts path too long"); - xfree(cp); + free(cp); have_identity = 1; } if ((in = fopen(identity_file, "r")) == NULL) @@ -1079,14 +1120,22 @@ do_known_hosts(struct passwd *pw, const char *name) } c = (strcmp(cp2, cp) == 0); if (find_host && c) { - printf("# Host %s found: " - "line %d type %s%s\n", name, - num, key_type(pub), - ca ? " (CA key)" : ""); + if (!quiet) + printf("# Host %s found: " + "line %d type %s%s\n", name, + num, key_type(pub), + ca ? " (CA key)" : ""); printhost(out, cp, pub, ca, 0); + found_key = 1; + } + if (delete_host) { + if (!c && !ca) + printhost(out, cp, pub, ca, 0); + else + printf("# Host %s found: " + "line %d type %s\n", name, + num, key_type(pub)); } - if (delete_host && !c && !ca) - printhost(out, cp, pub, ca, 0); } else if (hash_hosts) printhost(out, cp, pub, ca, 0); } else { @@ -1094,15 +1143,23 @@ do_known_hosts(struct passwd *pw, const char *name) c = (match_hostname(name, cp, strlen(cp)) == 1); if (find_host && c) { - printf("# Host %s found: " - "line %d type %s%s\n", name, - num, key_type(pub), - ca ? " (CA key)" : ""); + if (!quiet) + printf("# Host %s found: " + "line %d type %s%s\n", name, + num, key_type(pub), + ca ? " (CA key)" : ""); printhost(out, name, pub, ca, hash_hosts && !ca); + found_key = 1; + } + if (delete_host) { + if (!c && !ca) + printhost(out, cp, pub, ca, 0); + else + printf("# Host %s found: " + "line %d type %s\n", name, + num, key_type(pub)); } - if (delete_host && !c && !ca) - printhost(out, cp, pub, ca, 0); } else if (hash_hosts) { for (cp2 = strsep(&cp, ","); cp2 != NULL && *cp2 != '\0'; @@ -1169,7 +1226,7 @@ do_known_hosts(struct passwd *pw, const char *name) } } - exit(0); + exit (find_host && !found_key); } /* @@ -1202,7 +1259,7 @@ do_change_passphrase(struct passwd *pw) private = key_load_private(identity_file, old_passphrase, &comment); memset(old_passphrase, 0, strlen(old_passphrase)); - xfree(old_passphrase); + free(old_passphrase); if (private == NULL) { printf("Bad passphrase.\n"); exit(1); @@ -1225,30 +1282,31 @@ do_change_passphrase(struct passwd *pw) if (strcmp(passphrase1, passphrase2) != 0) { memset(passphrase1, 0, strlen(passphrase1)); memset(passphrase2, 0, strlen(passphrase2)); - xfree(passphrase1); - xfree(passphrase2); + free(passphrase1); + free(passphrase2); printf("Pass phrases do not match. Try again.\n"); exit(1); } /* Destroy the other copy. */ memset(passphrase2, 0, strlen(passphrase2)); - xfree(passphrase2); + free(passphrase2); } /* Save the file using the new passphrase. */ - if (!key_save_private(private, identity_file, passphrase1, comment)) { + if (!key_save_private(private, identity_file, passphrase1, comment, + use_new_format, new_format_cipher, rounds)) { printf("Saving the key failed: %s.\n", identity_file); memset(passphrase1, 0, strlen(passphrase1)); - xfree(passphrase1); + free(passphrase1); key_free(private); - xfree(comment); + free(comment); exit(1); } /* Destroy the passphrase and the copy of the key in memory. */ memset(passphrase1, 0, strlen(passphrase1)); - xfree(passphrase1); + free(passphrase1); key_free(private); /* Destroys contents */ - xfree(comment); + free(comment); printf("Your identification has been saved with the new passphrase.\n"); exit(0); @@ -1265,7 +1323,7 @@ do_print_resource_record(struct passwd *pw, char *fname, char *hname) struct stat st; if (fname == NULL) - ask_filename(pw, "Enter file in which the key is"); + fatal("%s: no filename", __func__); if (stat(fname, &st) < 0) { if (errno == ENOENT) return 0; @@ -1276,11 +1334,11 @@ do_print_resource_record(struct passwd *pw, char *fname, char *hname) if (public != NULL) { export_dns_rr(hname, public, stdout, print_generic); key_free(public); - xfree(comment); + free(comment); return 1; } if (comment) - xfree(comment); + free(comment); printf("failed to read v2 public key from %s.\n", fname); exit(1); @@ -1318,7 +1376,7 @@ do_change_comment(struct passwd *pw) private = key_load_private(identity_file, passphrase, &comment); if (private == NULL) { memset(passphrase, 0, strlen(passphrase)); - xfree(passphrase); + free(passphrase); printf("Bad passphrase.\n"); exit(1); } @@ -1346,16 +1404,17 @@ do_change_comment(struct passwd *pw) } /* Save the file using the new passphrase. */ - if (!key_save_private(private, identity_file, passphrase, new_comment)) { + if (!key_save_private(private, identity_file, passphrase, new_comment, + use_new_format, new_format_cipher, rounds)) { printf("Saving the key failed: %s.\n", identity_file); memset(passphrase, 0, strlen(passphrase)); - xfree(passphrase); + free(passphrase); key_free(private); - xfree(comment); + free(comment); exit(1); } memset(passphrase, 0, strlen(passphrase)); - xfree(passphrase); + free(passphrase); public = key_from_private(private); key_free(private); @@ -1376,7 +1435,7 @@ do_change_comment(struct passwd *pw) fprintf(f, " %s\n", new_comment); fclose(f); - xfree(comment); + free(comment); printf("The comment in your key file has been changed.\n"); exit(0); @@ -1493,7 +1552,7 @@ load_pkcs11_key(char *path) } key_free(keys[i]); } - xfree(keys); + free(keys); key_free(public); return private; #else @@ -1537,7 +1596,7 @@ do_ca_sign(struct passwd *pw, int argc, char **argv) fatal("No PKCS#11 key matching %s found", ca_key_path); } else if ((ca = load_identity(tmp)) == NULL) fatal("Couldn't load CA key \"%s\"", tmp); - xfree(tmp); + free(tmp); for (i = 0; i < argc; i++) { /* Split list of principals */ @@ -1550,14 +1609,14 @@ do_ca_sign(struct passwd *pw, int argc, char **argv) if (*(plist[n] = xstrdup(cp)) == '\0') fatal("Empty principal name"); } - xfree(otmp); + free(otmp); } tmp = tilde_expand_filename(argv[i], pw->pw_uid); if ((public = key_load_public(tmp, &comment)) == NULL) fatal("%s: unable to open \"%s\"", __func__, tmp); if (public->type != KEY_RSA && public->type != KEY_DSA && - public->type != KEY_ECDSA) + public->type != KEY_ECDSA && public->type != KEY_ED25519) fatal("%s: key \"%s\" type %s cannot be certified", __func__, tmp, key_type(public)); @@ -1588,7 +1647,7 @@ do_ca_sign(struct passwd *pw, int argc, char **argv) if ((cp = strrchr(tmp, '.')) != NULL && strcmp(cp, ".pub") == 0) *cp = '\0'; xasprintf(&out, "%s-cert.pub", tmp); - xfree(tmp); + free(tmp); if ((fd = open(out, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1) fatal("Could not open \"%s\" for writing: %s", out, @@ -1611,7 +1670,7 @@ do_ca_sign(struct passwd *pw, int argc, char **argv) } key_free(public); - xfree(out); + free(out); } pkcs11_terminate(); exit(0); @@ -1702,13 +1761,13 @@ parse_cert_times(char *timespec) cert_valid_from = parse_absolute_time(from); if (*to == '-' || *to == '+') - cert_valid_to = parse_relative_time(to, cert_valid_from); + cert_valid_to = parse_relative_time(to, now); else cert_valid_to = parse_absolute_time(to); if (cert_valid_to <= cert_valid_from) fatal("Empty certificate validity interval"); - xfree(from); + free(from); } static void @@ -1761,7 +1820,8 @@ add_cert_option(char *opt) static void show_options(const Buffer *optbuf, int v00, int in_critical) { - u_char *name, *data; + char *name; + u_char *data; u_int dlen; Buffer options, option; @@ -1786,13 +1846,13 @@ show_options(const Buffer *optbuf, int v00, int in_critical) strcmp(name, "source-address") == 0)) { data = buffer_get_string(&option, NULL); printf(" %s\n", data); - xfree(data); + free(data); } else { printf(" UNKNOWN OPTION (len %u)\n", buffer_len(&option)); buffer_clear(&option); } - xfree(name); + free(name); if (buffer_len(&option) != 0) fatal("Option corrupt: extra data at end"); } @@ -1864,12 +1924,235 @@ do_show_cert(struct passwd *pw) } static void +load_krl(const char *path, struct ssh_krl **krlp) +{ + Buffer krlbuf; + int fd; + + buffer_init(&krlbuf); + if ((fd = open(path, O_RDONLY)) == -1) + fatal("open %s: %s", path, strerror(errno)); + if (!key_load_file(fd, path, &krlbuf)) + fatal("Unable to load KRL"); + close(fd); + /* XXX check sigs */ + if (ssh_krl_from_blob(&krlbuf, krlp, NULL, 0) != 0 || + *krlp == NULL) + fatal("Invalid KRL file"); + buffer_free(&krlbuf); +} + +static void +update_krl_from_file(struct passwd *pw, const char *file, const Key *ca, + struct ssh_krl *krl) +{ + Key *key = NULL; + u_long lnum = 0; + char *path, *cp, *ep, line[SSH_MAX_PUBKEY_BYTES]; + unsigned long long serial, serial2; + int i, was_explicit_key, was_sha1, r; + FILE *krl_spec; + + path = tilde_expand_filename(file, pw->pw_uid); + if (strcmp(path, "-") == 0) { + krl_spec = stdin; + free(path); + path = xstrdup("(standard input)"); + } else if ((krl_spec = fopen(path, "r")) == NULL) + fatal("fopen %s: %s", path, strerror(errno)); + + if (!quiet) + printf("Revoking from %s\n", path); + while (read_keyfile_line(krl_spec, path, line, sizeof(line), + &lnum) == 0) { + was_explicit_key = was_sha1 = 0; + cp = line + strspn(line, " \t"); + /* Trim trailing space, comments and strip \n */ + for (i = 0, r = -1; cp[i] != '\0'; i++) { + if (cp[i] == '#' || cp[i] == '\n') { + cp[i] = '\0'; + break; + } + if (cp[i] == ' ' || cp[i] == '\t') { + /* Remember the start of a span of whitespace */ + if (r == -1) + r = i; + } else + r = -1; + } + if (r != -1) + cp[r] = '\0'; + if (*cp == '\0') + continue; + if (strncasecmp(cp, "serial:", 7) == 0) { + if (ca == NULL) { + fatal("revoking certificates by serial number " + "requires specification of a CA key"); + } + cp += 7; + cp = cp + strspn(cp, " \t"); + errno = 0; + serial = strtoull(cp, &ep, 0); + if (*cp == '\0' || (*ep != '\0' && *ep != '-')) + fatal("%s:%lu: invalid serial \"%s\"", + path, lnum, cp); + if (errno == ERANGE && serial == ULLONG_MAX) + fatal("%s:%lu: serial out of range", + path, lnum); + serial2 = serial; + if (*ep == '-') { + cp = ep + 1; + errno = 0; + serial2 = strtoull(cp, &ep, 0); + if (*cp == '\0' || *ep != '\0') + fatal("%s:%lu: invalid serial \"%s\"", + path, lnum, cp); + if (errno == ERANGE && serial2 == ULLONG_MAX) + fatal("%s:%lu: serial out of range", + path, lnum); + if (serial2 <= serial) + fatal("%s:%lu: invalid serial range " + "%llu:%llu", path, lnum, + (unsigned long long)serial, + (unsigned long long)serial2); + } + if (ssh_krl_revoke_cert_by_serial_range(krl, + ca, serial, serial2) != 0) { + fatal("%s: revoke serial failed", + __func__); + } + } else if (strncasecmp(cp, "id:", 3) == 0) { + if (ca == NULL) { + fatal("revoking certificates by key ID " + "requires specification of a CA key"); + } + cp += 3; + cp = cp + strspn(cp, " \t"); + if (ssh_krl_revoke_cert_by_key_id(krl, ca, cp) != 0) + fatal("%s: revoke key ID failed", __func__); + } else { + if (strncasecmp(cp, "key:", 4) == 0) { + cp += 4; + cp = cp + strspn(cp, " \t"); + was_explicit_key = 1; + } else if (strncasecmp(cp, "sha1:", 5) == 0) { + cp += 5; + cp = cp + strspn(cp, " \t"); + was_sha1 = 1; + } else { + /* + * Just try to process the line as a key. + * Parsing will fail if it isn't. + */ + } + if ((key = key_new(KEY_UNSPEC)) == NULL) + fatal("key_new"); + if (key_read(key, &cp) != 1) + fatal("%s:%lu: invalid key", path, lnum); + if (was_explicit_key) + r = ssh_krl_revoke_key_explicit(krl, key); + else if (was_sha1) + r = ssh_krl_revoke_key_sha1(krl, key); + else + r = ssh_krl_revoke_key(krl, key); + if (r != 0) + fatal("%s: revoke key failed", __func__); + key_free(key); + } + } + if (strcmp(path, "-") != 0) + fclose(krl_spec); + free(path); +} + +static void +do_gen_krl(struct passwd *pw, int updating, int argc, char **argv) +{ + struct ssh_krl *krl; + struct stat sb; + Key *ca = NULL; + int fd, i; + char *tmp; + Buffer kbuf; + + if (*identity_file == '\0') + fatal("KRL generation requires an output file"); + if (stat(identity_file, &sb) == -1) { + if (errno != ENOENT) + fatal("Cannot access KRL \"%s\": %s", + identity_file, strerror(errno)); + if (updating) + fatal("KRL \"%s\" does not exist", identity_file); + } + if (ca_key_path != NULL) { + tmp = tilde_expand_filename(ca_key_path, pw->pw_uid); + if ((ca = key_load_public(tmp, NULL)) == NULL) + fatal("Cannot load CA public key %s", tmp); + free(tmp); + } + + if (updating) + load_krl(identity_file, &krl); + else if ((krl = ssh_krl_init()) == NULL) + fatal("couldn't create KRL"); + + if (cert_serial != 0) + ssh_krl_set_version(krl, cert_serial); + if (identity_comment != NULL) + ssh_krl_set_comment(krl, identity_comment); + + for (i = 0; i < argc; i++) + update_krl_from_file(pw, argv[i], ca, krl); + + buffer_init(&kbuf); + if (ssh_krl_to_blob(krl, &kbuf, NULL, 0) != 0) + fatal("Couldn't generate KRL"); + if ((fd = open(identity_file, O_WRONLY|O_CREAT|O_TRUNC, 0644)) == -1) + fatal("open %s: %s", identity_file, strerror(errno)); + if (atomicio(vwrite, fd, buffer_ptr(&kbuf), buffer_len(&kbuf)) != + buffer_len(&kbuf)) + fatal("write %s: %s", identity_file, strerror(errno)); + close(fd); + buffer_free(&kbuf); + ssh_krl_free(krl); + if (ca != NULL) + key_free(ca); +} + +static void +do_check_krl(struct passwd *pw, int argc, char **argv) +{ + int i, r, ret = 0; + char *comment; + struct ssh_krl *krl; + Key *k; + + if (*identity_file == '\0') + fatal("KRL checking requires an input file"); + load_krl(identity_file, &krl); + for (i = 0; i < argc; i++) { + if ((k = key_load_public(argv[i], &comment)) == NULL) + fatal("Cannot load public key %s", argv[i]); + r = ssh_krl_check_key(krl, k); + printf("%s%s%s%s: %s\n", argv[i], + *comment ? " (" : "", comment, *comment ? ")" : "", + r == 0 ? "ok" : "REVOKED"); + if (r != 0) + ret = 1; + key_free(k); + free(comment); + } + ssh_krl_free(krl); + exit(ret); +} + +static void usage(void) { fprintf(stderr, "usage: %s [options]\n", __progname); fprintf(stderr, "Options:\n"); fprintf(stderr, " -A Generate non-existent host keys for all key types.\n"); - fprintf(stderr, " -a trials Number of trials for screening DH-GEX moduli.\n"); + fprintf(stderr, " -a number Number of KDF rounds for new key format or moduli primality tests.\n"); fprintf(stderr, " -B Show bubblebabble digest of key file.\n"); fprintf(stderr, " -b bits Number of bits in the key to create.\n"); fprintf(stderr, " -C comment Provide new comment.\n"); @@ -1886,7 +2169,10 @@ usage(void) fprintf(stderr, " -h Generate host certificate instead of a user certificate.\n"); fprintf(stderr, " -I key_id Key identifier to include in certificate.\n"); fprintf(stderr, " -i Import foreign format to OpenSSH key file.\n"); + fprintf(stderr, " -J number Screen this number of moduli lines.\n"); + fprintf(stderr, " -j number Start screening moduli at specified line.\n"); fprintf(stderr, " -K checkpt Write checkpoints to this file.\n"); + fprintf(stderr, " -k Generate a KRL file.\n"); fprintf(stderr, " -L Print the contents of a certificate.\n"); fprintf(stderr, " -l Show fingerprint of key file.\n"); fprintf(stderr, " -M memory Amount of memory (MB) to use for generating DH-GEX moduli.\n"); @@ -1894,8 +2180,10 @@ usage(void) fprintf(stderr, " -N phrase Provide new passphrase.\n"); fprintf(stderr, " -n name,... User/host principal names to include in certificate\n"); fprintf(stderr, " -O option Specify a certificate option.\n"); + fprintf(stderr, " -o Enforce new private key format.\n"); fprintf(stderr, " -P phrase Provide old passphrase.\n"); fprintf(stderr, " -p Change passphrase of private key file.\n"); + fprintf(stderr, " -Q Test whether key(s) are revoked in KRL.\n"); fprintf(stderr, " -q Quiet.\n"); fprintf(stderr, " -R hostname Remove host from known_hosts file.\n"); fprintf(stderr, " -r hostname Print DNS resource record.\n"); @@ -1903,11 +2191,13 @@ usage(void) fprintf(stderr, " -s ca_key Certify keys with CA key.\n"); fprintf(stderr, " -T file Screen candidates for DH-GEX moduli.\n"); fprintf(stderr, " -t type Specify type of key to create.\n"); + fprintf(stderr, " -u Update KRL rather than creating a new one.\n"); fprintf(stderr, " -V from:to Specify certificate validity interval.\n"); fprintf(stderr, " -v Verbose.\n"); fprintf(stderr, " -W gen Generator to use for generating DH-GEX moduli.\n"); fprintf(stderr, " -y Read private key file and print public key.\n"); fprintf(stderr, " -z serial Specify a serial number.\n"); + fprintf(stderr, " -Z cipher Specify a cipher for new private key format.\n"); exit(1); } @@ -1920,14 +2210,15 @@ main(int argc, char **argv) { char dotsshdir[MAXPATHLEN], comment[1024], *passphrase1, *passphrase2; char *checkpoint = NULL; - char out_file[MAXPATHLEN], *rr_hostname = NULL; + char out_file[MAXPATHLEN], *ep, *rr_hostname = NULL; Key *private, *public; struct passwd *pw; struct stat st; int opt, type, fd; - u_int32_t memory = 0, generator_wanted = 0, trials = 100; + u_int32_t memory = 0, generator_wanted = 0; int do_gen_candidates = 0, do_screen_candidates = 0; - int gen_all_hostkeys = 0; + int gen_all_hostkeys = 0, gen_krl = 0, update_krl = 0, check_krl = 0; + unsigned long start_lineno = 0, lines_to_process = 0; BIGNUM *start = NULL; FILE *f; const char *errstr; @@ -1948,7 +2239,7 @@ main(int argc, char **argv) /* we need this for the home * directory. */ pw = getpwuid(getuid()); if (!pw) { - printf("You don't exist, go away!\n"); + printf("No user exists for uid %lu\n", (u_long)getuid()); exit(1); } if (gethostname(hostname, sizeof(hostname)) < 0) { @@ -1956,8 +2247,9 @@ main(int argc, char **argv) exit(1); } - while ((opt = getopt(argc, argv, "AegiqpclBHLhvxXyF:b:f:t:D:I:K:P:m:N:n:" - "O:C:r:g:R:T:G:M:S:s:a:V:W:z:")) != -1) { + /* Remaining characters: EUYdw */ + while ((opt = getopt(argc, argv, "ABHLQXceghiklopquvxy" + "C:D:F:G:I:J:K:M:N:O:P:R:S:T:V:W:Z:a:b:f:g:j:m:n:r:s:t:z:")) != -1) { switch (opt) { case 'A': gen_all_hostkeys = 1; @@ -1978,6 +2270,12 @@ main(int argc, char **argv) case 'I': cert_key_id = optarg; break; + case 'J': + lines_to_process = strtoul(optarg, NULL, 10); + break; + case 'j': + start_lineno = strtoul(optarg, NULL, 10); + break; case 'R': delete_host = 1; rr_hostname = optarg; @@ -2009,6 +2307,9 @@ main(int argc, char **argv) case 'n': cert_principals = optarg; break; + case 'o': + use_new_format = 1; + break; case 'p': change_passphrase = 1; break; @@ -2030,9 +2331,15 @@ main(int argc, char **argv) case 'N': identity_new_passphrase = optarg; break; + case 'Q': + check_krl = 1; + break; case 'O': add_cert_option(optarg); break; + case 'Z': + new_format_cipher = optarg; + break; case 'C': identity_comment = optarg; break; @@ -2048,6 +2355,9 @@ main(int argc, char **argv) cert_key_type = SSH2_CERT_TYPE_HOST; certflags_flags = 0; break; + case 'k': + gen_krl = 1; + break; case 'i': case 'X': /* import key */ @@ -2065,6 +2375,9 @@ main(int argc, char **argv) case 'D': pkcs11provider = optarg; break; + case 'u': + update_krl = 1; + break; case 'v': if (log_level == SYSLOG_LEVEL_INFO) log_level = SYSLOG_LEVEL_DEBUG1; @@ -2085,9 +2398,9 @@ main(int argc, char **argv) optarg, errstr); break; case 'a': - trials = (u_int32_t)strtonum(optarg, 1, UINT_MAX, &errstr); + rounds = (int)strtonum(optarg, 1, INT_MAX, &errstr); if (errstr) - fatal("Invalid number of trials: %s (%s)", + fatal("Invalid number: %s (%s)", optarg, errstr); break; case 'M': @@ -2121,9 +2434,11 @@ main(int argc, char **argv) parse_cert_times(optarg); break; case 'z': - cert_serial = strtonum(optarg, 0, LLONG_MAX, &errstr); - if (errstr) - fatal("Invalid serial number: %s", errstr); + errno = 0; + cert_serial = strtoull(optarg, &ep, 10); + if (*optarg < '0' || *optarg > '9' || *ep != '\0' || + (errno == ERANGE && cert_serial == ULLONG_MAX)) + fatal("Invalid serial number \"%s\"", optarg); break; case '?': default: @@ -2138,11 +2453,11 @@ main(int argc, char **argv) argc -= optind; if (ca_key_path != NULL) { - if (argc < 1) { + if (argc < 1 && !gen_krl) { printf("Too few arguments.\n"); usage(); } - } else if (argc > 0) { + } else if (argc > 0 && !gen_krl && !check_krl) { printf("Too many arguments.\n"); usage(); } @@ -2151,9 +2466,17 @@ main(int argc, char **argv) usage(); } if (print_fingerprint && (delete_host || hash_hosts)) { - printf("Cannot use -l with -D or -R.\n"); + printf("Cannot use -l with -H or -R.\n"); usage(); } + if (gen_krl) { + do_gen_krl(pw, update_krl, argc, argv); + return (0); + } + if (check_krl) { + do_check_krl(pw, argc, argv); + return (0); + } if (ca_key_path != NULL) { if (cert_key_id == NULL) fatal("Must specify key id (-I) when certifying"); @@ -2163,6 +2486,8 @@ main(int argc, char **argv) do_show_cert(pw); if (delete_host || hash_hosts || find_host) do_known_hosts(pw, rr_hostname); + if (pkcs11provider != NULL) + do_download(pw); if (print_fingerprint || print_bubblebabble) do_fingerprint(pw); if (change_passphrase) @@ -2192,14 +2517,14 @@ main(int argc, char **argv) _PATH_HOST_RSA_KEY_FILE, rr_hostname); n += do_print_resource_record(pw, _PATH_HOST_DSA_KEY_FILE, rr_hostname); + n += do_print_resource_record(pw, + _PATH_HOST_ECDSA_KEY_FILE, rr_hostname); if (n == 0) fatal("no keys found."); exit(0); } } - if (pkcs11provider != NULL) - do_download(pw); if (do_gen_candidates) { FILE *out = fopen(out_file, "w"); @@ -2219,7 +2544,7 @@ main(int argc, char **argv) if (do_screen_candidates) { FILE *in; - FILE *out = fopen(out_file, "w"); + FILE *out = fopen(out_file, "a"); if (have_identity && strcmp(identity_file, "-") != 0) { if ((in = fopen(identity_file, "r")) == NULL) { @@ -2234,8 +2559,9 @@ main(int argc, char **argv) fatal("Couldn't open moduli file \"%s\": %s", out_file, strerror(errno)); } - if (prime_test(in, out, trials, generator_wanted, checkpoint) - != 0) + if (prime_test(in, out, rounds == 0 ? 100 : rounds, + generator_wanted, checkpoint, + start_lineno, lines_to_process) != 0) fatal("modulus screening failed"); return (0); } @@ -2245,8 +2571,6 @@ main(int argc, char **argv) return (0); } - arc4random_stir(); - if (key_type_name == NULL) key_type_name = "rsa"; @@ -2310,14 +2634,14 @@ passphrase_again: */ memset(passphrase1, 0, strlen(passphrase1)); memset(passphrase2, 0, strlen(passphrase2)); - xfree(passphrase1); - xfree(passphrase2); + free(passphrase1); + free(passphrase2); printf("Passphrases do not match. Try again.\n"); goto passphrase_again; } /* Clear the other copy of the passphrase. */ memset(passphrase2, 0, strlen(passphrase2)); - xfree(passphrase2); + free(passphrase2); } if (identity_comment) { @@ -2328,19 +2652,19 @@ passphrase_again: } /* Save the key with the given passphrase and comment. */ - if (!key_save_private(private, identity_file, passphrase1, comment)) { + if (!key_save_private(private, identity_file, passphrase1, comment, + use_new_format, new_format_cipher, rounds)) { printf("Saving the key failed: %s.\n", identity_file); memset(passphrase1, 0, strlen(passphrase1)); - xfree(passphrase1); + free(passphrase1); exit(1); } /* Clear the passphrase. */ memset(passphrase1, 0, strlen(passphrase1)); - xfree(passphrase1); + free(passphrase1); /* Clear the private key and the random number generator. */ key_free(private); - arc4random_stir(); if (!quiet) printf("Your identification has been saved in %s.\n", identity_file); @@ -2371,8 +2695,8 @@ passphrase_again: printf("%s %s\n", fp, comment); printf("The key's randomart image is:\n"); printf("%s\n", ra); - xfree(ra); - xfree(fp); + free(ra); + free(fp); } key_free(public); diff --git a/ssh-keyscan.1 b/ssh-keyscan.1 index fe9bb6e0..65ef43ef 100644 --- a/ssh-keyscan.1 +++ b/ssh-keyscan.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: ssh-keyscan.1,v 1.29 2010/08/31 11:54:45 djm Exp $ +.\" $OpenBSD: ssh-keyscan.1,v 1.33 2013/12/07 11:58:46 naddy Exp $ .\" .\" Copyright 1995, 1996 by David Mazieres <dm@lcs.mit.edu>. .\" @@ -6,7 +6,7 @@ .\" permitted provided that due credit is given to the author and the .\" OpenBSD project by leaving this copyright notice intact. .\" -.Dd $Mdocdate: August 31 2010 $ +.Dd $Mdocdate: December 7 2013 $ .Dt SSH-KEYSCAN 1 .Os .Sh NAME @@ -89,13 +89,17 @@ The possible values are .Dq rsa1 for protocol version 1 and .Dq dsa , -.Dq ecdsa +.Dq ecdsa , +.Dq ed25519 , or .Dq rsa for protocol version 2. Multiple values may be specified by separating them with commas. -The default is -.Dq rsa . +The default is to fetch +.Dq rsa +and +.Dq ecdsa +keys. .It Fl v Verbose mode. Causes @@ -134,6 +138,7 @@ is either .Dq ecdsa-sha2-nistp256 , .Dq ecdsa-sha2-nistp384 , .Dq ecdsa-sha2-nistp521 , +.Dq ssh-ed25519 , .Dq ssh-dss or .Dq ssh-rsa . @@ -161,9 +166,9 @@ $ ssh-keyscan -t rsa,dsa,ecdsa -f ssh_hosts | \e .Xr sshd 8 .Sh AUTHORS .An -nosplit -.An David Mazieres Aq dm@lcs.mit.edu +.An David Mazieres Aq Mt dm@lcs.mit.edu wrote the initial version, and -.An Wayne Davison Aq wayned@users.sourceforge.net +.An Wayne Davison Aq Mt wayned@users.sourceforge.net added support for protocol version 2. .Sh BUGS It generates "Connection closed by remote host" messages on the consoles diff --git a/ssh-keyscan.c b/ssh-keyscan.c index b085dd41..8d0a6b8d 100644 --- a/ssh-keyscan.c +++ b/ssh-keyscan.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-keyscan.c,v 1.85 2011/03/15 10:36:02 okan Exp $ */ +/* $OpenBSD: ssh-keyscan.c,v 1.89 2013/12/06 13:39:49 markus Exp $ */ /* * Copyright 1995, 1996 by David Mazieres <dm@lcs.mit.edu>. * @@ -56,8 +56,9 @@ int ssh_port = SSH_DEFAULT_PORT; #define KT_DSA 2 #define KT_RSA 4 #define KT_ECDSA 8 +#define KT_ED25519 16 -int get_keytypes = KT_RSA; /* Get only RSA keys by default */ +int get_keytypes = KT_RSA|KT_ECDSA;/* Get RSA and ECDSA keys by default */ int hash_hosts = 0; /* Hash hostname on output */ @@ -245,15 +246,18 @@ keygrab_ssh2(con *c) packet_set_connection(c->c_fd, c->c_fd); enable_compat20(); - myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS] = c->c_keytype == KT_DSA? - "ssh-dss" : (c->c_keytype == KT_RSA ? "ssh-rsa" : - "ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521"); + myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS] = + c->c_keytype == KT_DSA ? "ssh-dss" : + (c->c_keytype == KT_RSA ? "ssh-rsa" : + (c->c_keytype == KT_ED25519 ? "ssh-ed25519" : + "ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521")); c->c_kex = kex_setup(myproposal); c->c_kex->kex[KEX_DH_GRP1_SHA1] = kexdh_client; c->c_kex->kex[KEX_DH_GRP14_SHA1] = kexdh_client; c->c_kex->kex[KEX_DH_GEX_SHA1] = kexgex_client; c->c_kex->kex[KEX_DH_GEX_SHA256] = kexgex_client; c->c_kex->kex[KEX_ECDH_SHA2] = kexecdh_client; + c->c_kex->kex[KEX_C25519_SHA256] = kexc25519_client; c->c_kex->verify_host_key = hostjump; if (!(j = setjmp(kexjmp))) { @@ -263,7 +267,7 @@ keygrab_ssh2(con *c) exit(1); } nonfatal_fatal = 0; - xfree(c->c_kex); + free(c->c_kex); c->c_kex = NULL; packet_close(); @@ -329,7 +333,7 @@ conalloc(char *iname, char *oname, int keytype) do { name = xstrsep(&namelist, ","); if (!name) { - xfree(namebase); + free(namebase); return (-1); } } while ((s = tcpconnect(name)) < 0); @@ -363,10 +367,10 @@ confree(int s) if (s >= maxfd || fdcon[s].c_status == CS_UNUSED) fatal("confree: attempt to free bad fdno %d", s); close(s); - xfree(fdcon[s].c_namebase); - xfree(fdcon[s].c_output_name); + free(fdcon[s].c_namebase); + free(fdcon[s].c_output_name); if (fdcon[s].c_status == CS_KEYS) - xfree(fdcon[s].c_data); + free(fdcon[s].c_data); fdcon[s].c_status = CS_UNUSED; fdcon[s].c_keytype = 0; TAILQ_REMOVE(&tq, &fdcon[s], c_link); @@ -553,8 +557,8 @@ conloop(void) } else if (FD_ISSET(i, r)) conread(i); } - xfree(r); - xfree(e); + free(r); + free(e); c = TAILQ_FIRST(&tq); while (c && (c->c_tv.tv_sec < now.tv_sec || @@ -574,7 +578,7 @@ do_host(char *host) if (name == NULL) return; - for (j = KT_RSA1; j <= KT_ECDSA; j *= 2) { + for (j = KT_RSA1; j <= KT_ED25519; j *= 2) { if (get_keytypes & j) { while (ncon >= MAXCON) conloop(); @@ -681,6 +685,9 @@ main(int argc, char **argv) case KEY_RSA: get_keytypes |= KT_RSA; break; + case KEY_ED25519: + get_keytypes |= KT_ED25519; + break; case KEY_UNSPEC: fatal("unknown key type %s", tname); } diff --git a/ssh-keysign.8 b/ssh-keysign.8 index 5e09e027..69d08295 100644 --- a/ssh-keysign.8 +++ b/ssh-keysign.8 @@ -1,4 +1,4 @@ -.\" $OpenBSD: ssh-keysign.8,v 1.12 2010/08/31 11:54:45 djm Exp $ +.\" $OpenBSD: ssh-keysign.8,v 1.14 2013/12/07 11:58:46 naddy Exp $ .\" .\" Copyright (c) 2002 Markus Friedl. All rights reserved. .\" @@ -22,7 +22,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: August 31 2010 $ +.Dd $Mdocdate: December 7 2013 $ .Dt SSH-KEYSIGN 8 .Os .Sh NAME @@ -63,6 +63,7 @@ is enabled. .Pp .It Pa /etc/ssh/ssh_host_dsa_key .It Pa /etc/ssh/ssh_host_ecdsa_key +.It Pa /etc/ssh/ssh_host_ed25519_key .It Pa /etc/ssh/ssh_host_rsa_key These files contain the private parts of the host keys used to generate the digital signature. @@ -74,6 +75,7 @@ must be set-uid root if host-based authentication is used. .Pp .It Pa /etc/ssh/ssh_host_dsa_key-cert.pub .It Pa /etc/ssh/ssh_host_ecdsa_key-cert.pub +.It Pa /etc/ssh/ssh_host_ed25519_key-cert.pub .It Pa /etc/ssh/ssh_host_rsa_key-cert.pub If these files exist they are assumed to contain public certificate information corresponding with the private keys above. @@ -88,4 +90,4 @@ information corresponding with the private keys above. first appeared in .Ox 3.2 . .Sh AUTHORS -.An Markus Friedl Aq markus@openbsd.org +.An Markus Friedl Aq Mt markus@openbsd.org diff --git a/ssh-keysign.c b/ssh-keysign.c index 1deb7e14..6bde8ad1 100644 --- a/ssh-keysign.c +++ b/ssh-keysign.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-keysign.c,v 1.36 2011/02/16 00:31:14 djm Exp $ */ +/* $OpenBSD: ssh-keysign.c,v 1.39 2013/12/06 13:39:49 markus Exp $ */ /* * Copyright (c) 2002 Markus Friedl. All rights reserved. * @@ -78,7 +78,7 @@ valid_request(struct passwd *pw, char *host, Key **ret, u_char *data, p = buffer_get_string(&b, &len); if (len != 20 && len != 32) fail++; - xfree(p); + free(p); if (buffer_get_char(&b) != SSH2_MSG_USERAUTH_REQUEST) fail++; @@ -90,13 +90,13 @@ valid_request(struct passwd *pw, char *host, Key **ret, u_char *data, p = buffer_get_string(&b, NULL); if (strcmp("ssh-connection", p) != 0) fail++; - xfree(p); + free(p); /* method */ p = buffer_get_string(&b, NULL); if (strcmp("hostbased", p) != 0) fail++; - xfree(p); + free(p); /* pubkey */ pkalg = buffer_get_string(&b, NULL); @@ -109,8 +109,8 @@ valid_request(struct passwd *pw, char *host, Key **ret, u_char *data, fail++; else if (key->type != pktype) fail++; - xfree(pkalg); - xfree(pkblob); + free(pkalg); + free(pkblob); /* client host name, handle trailing dot */ p = buffer_get_string(&b, &len); @@ -121,14 +121,14 @@ valid_request(struct passwd *pw, char *host, Key **ret, u_char *data, fail++; else if (strncasecmp(host, p, len - 1) != 0) fail++; - xfree(p); + free(p); /* local user */ p = buffer_get_string(&b, NULL); if (strcmp(pw->pw_name, p) != 0) fail++; - xfree(p); + free(p); /* end of message */ if (buffer_len(&b) != 0) @@ -150,7 +150,7 @@ main(int argc, char **argv) { Buffer b; Options options; -#define NUM_KEYTYPES 3 +#define NUM_KEYTYPES 4 Key *keys[NUM_KEYTYPES], *key = NULL; struct passwd *pw; int key_fd[NUM_KEYTYPES], i, found, version = 2, fd; @@ -169,6 +169,7 @@ main(int argc, char **argv) i = 0; key_fd[i++] = open(_PATH_HOST_DSA_KEY_FILE, O_RDONLY); key_fd[i++] = open(_PATH_HOST_ECDSA_KEY_FILE, O_RDONLY); + key_fd[i++] = open(_PATH_HOST_ED25519_KEY_FILE, O_RDONLY); key_fd[i++] = open(_PATH_HOST_RSA_KEY_FILE, O_RDONLY); original_real_uid = getuid(); /* XXX readconf.c needs this */ @@ -179,7 +180,6 @@ main(int argc, char **argv) permanently_set_uid(pw); seed_rng(); - arc4random_stir(); #ifdef DEBUG_SSH_KEYSIGN log_init("ssh-keysign", SYSLOG_LEVEL_DEBUG3, SYSLOG_FACILITY_AUTH, 0); @@ -187,7 +187,7 @@ main(int argc, char **argv) /* verify that ssh-keysign is enabled by the admin */ initialize_options(&options); - (void)read_config_file(_PATH_HOST_CONFIG_FILE, "", &options, 0); + (void)read_config_file(_PATH_HOST_CONFIG_FILE, pw, "", &options, 0); fill_default_options(&options); if (options.enable_ssh_keysign != 1) fatal("ssh-keysign not enabled in %s", @@ -233,7 +233,7 @@ main(int argc, char **argv) data = buffer_get_string(&b, &dlen); if (valid_request(pw, host, &key, data, dlen) < 0) fatal("not a valid request"); - xfree(host); + free(host); found = 0; for (i = 0; i < NUM_KEYTYPES; i++) { @@ -248,7 +248,7 @@ main(int argc, char **argv) if (key_sign(keys[i], &signature, &slen, data, dlen) != 0) fatal("key_sign failed"); - xfree(data); + free(data); /* send reply */ buffer_clear(&b); diff --git a/ssh-pkcs11-client.c b/ssh-pkcs11-client.c index 82b11daf..6c9f9d2c 100644 --- a/ssh-pkcs11-client.c +++ b/ssh-pkcs11-client.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-pkcs11-client.c,v 1.3 2012/01/16 20:34:09 miod Exp $ */ +/* $OpenBSD: ssh-pkcs11-client.c,v 1.4 2013/05/17 00:13:14 djm Exp $ */ /* * Copyright (c) 2010 Markus Friedl. All rights reserved. * @@ -121,7 +121,7 @@ pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa, buffer_put_string(&msg, blob, blen); buffer_put_string(&msg, from, flen); buffer_put_int(&msg, 0); - xfree(blob); + free(blob); send_msg(&msg); buffer_clear(&msg); @@ -131,7 +131,7 @@ pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa, memcpy(to, signature, slen); ret = slen; } - xfree(signature); + free(signature); } buffer_free(&msg); return (ret); @@ -205,11 +205,11 @@ pkcs11_add_provider(char *name, char *pin, Key ***keysp) *keysp = xcalloc(nkeys, sizeof(Key *)); for (i = 0; i < nkeys; i++) { blob = buffer_get_string(&msg, &blen); - xfree(buffer_get_string(&msg, NULL)); + free(buffer_get_string(&msg, NULL)); k = key_from_blob(blob, blen); wrap_key(k->rsa); (*keysp)[i] = k; - xfree(blob); + free(blob); } } else { nkeys = -1; diff --git a/ssh-pkcs11-helper.8 b/ssh-pkcs11-helper.8 index 9bdaadc0..3728c4e4 100644 --- a/ssh-pkcs11-helper.8 +++ b/ssh-pkcs11-helper.8 @@ -1,4 +1,4 @@ -.\" $OpenBSD: ssh-pkcs11-helper.8,v 1.3 2010/02/10 23:20:38 markus Exp $ +.\" $OpenBSD: ssh-pkcs11-helper.8,v 1.4 2013/07/16 00:07:52 schwarze Exp $ .\" .\" Copyright (c) 2010 Markus Friedl. All rights reserved. .\" @@ -14,7 +14,7 @@ .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" -.Dd $Mdocdate: February 10 2010 $ +.Dd $Mdocdate: July 16 2013 $ .Dt SSH-PKCS11-HELPER 8 .Os .Sh NAME @@ -40,4 +40,4 @@ is not intended to be invoked by the user, but from first appeared in .Ox 4.7 . .Sh AUTHORS -.An Markus Friedl Aq markus@openbsd.org +.An Markus Friedl Aq Mt markus@openbsd.org diff --git a/ssh-pkcs11-helper.c b/ssh-pkcs11-helper.c index cd33515f..b7c52beb 100644 --- a/ssh-pkcs11-helper.c +++ b/ssh-pkcs11-helper.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-pkcs11-helper.c,v 1.3 2010/02/24 06:12:53 djm Exp $ */ +/* $OpenBSD: ssh-pkcs11-helper.c,v 1.7 2013/12/02 02:56:17 djm Exp $ */ /* * Copyright (c) 2010 Markus Friedl. All rights reserved. * @@ -79,7 +79,7 @@ del_keys_by_name(char *name) nxt = TAILQ_NEXT(ki, next); if (!strcmp(ki->providername, name)) { TAILQ_REMOVE(&pkcs11_keylist, ki, next); - xfree(ki->providername); + free(ki->providername); key_free(ki->key); free(ki); } @@ -127,18 +127,19 @@ process_add(void) buffer_put_char(&msg, SSH2_AGENT_IDENTITIES_ANSWER); buffer_put_int(&msg, nkeys); for (i = 0; i < nkeys; i++) { - key_to_blob(keys[i], &blob, &blen); + if (key_to_blob(keys[i], &blob, &blen) == 0) + continue; buffer_put_string(&msg, blob, blen); buffer_put_cstring(&msg, name); - xfree(blob); + free(blob); add_key(keys[i], name); } - xfree(keys); + free(keys); } else { buffer_put_char(&msg, SSH_AGENT_FAILURE); } - xfree(pin); - xfree(name); + free(pin); + free(name); send_msg(&msg); buffer_free(&msg); } @@ -157,8 +158,8 @@ process_del(void) buffer_put_char(&msg, SSH_AGENT_SUCCESS); else buffer_put_char(&msg, SSH_AGENT_FAILURE); - xfree(pin); - xfree(name); + free(pin); + free(name); send_msg(&msg); buffer_free(&msg); } @@ -168,13 +169,13 @@ process_sign(void) { u_char *blob, *data, *signature = NULL; u_int blen, dlen, slen = 0; - int ok = -1, flags, ret; + int ok = -1, ret; Key *key, *found; Buffer msg; blob = get_string(&blen); data = get_string(&dlen); - flags = get_int(); /* XXX ignore */ + (void)get_int(); /* XXX ignore flags */ if ((key = key_from_blob(blob, blen)) != NULL) { if ((found = lookup_key(key)) != NULL) { @@ -195,10 +196,9 @@ process_sign(void) } else { buffer_put_char(&msg, SSH_AGENT_FAILURE); } - xfree(data); - xfree(blob); - if (signature != NULL) - xfree(signature); + free(data); + free(blob); + free(signature); send_msg(&msg); buffer_free(&msg); } @@ -274,7 +274,6 @@ main(int argc, char **argv) LogLevel log_level = SYSLOG_LEVEL_ERROR; char buf[4*4096]; - extern char *optarg; extern char *__progname; TAILQ_INIT(&pkcs11_keylist); diff --git a/ssh-pkcs11.c b/ssh-pkcs11.c index 1f4c1c8e..c49cbf42 100644 --- a/ssh-pkcs11.c +++ b/ssh-pkcs11.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-pkcs11.c,v 1.6 2010/06/08 21:32:19 markus Exp $ */ +/* $OpenBSD: ssh-pkcs11.c,v 1.11 2013/11/13 13:48:20 markus Exp $ */ /* * Copyright (c) 2010 Markus Friedl. All rights reserved. * @@ -31,6 +31,8 @@ #include "openbsd-compat/sys-queue.h" +#include <openssl/x509.h> + #define CRYPTOKI_COMPAT #include "pkcs11.h" @@ -120,9 +122,9 @@ pkcs11_provider_unref(struct pkcs11_provider *p) if (--p->refcount <= 0) { if (p->valid) error("pkcs11_provider_unref: %p still valid", p); - xfree(p->slotlist); - xfree(p->slotinfo); - xfree(p); + free(p->slotlist); + free(p->slotinfo); + free(p); } } @@ -180,9 +182,8 @@ pkcs11_rsa_finish(RSA *rsa) rv = k11->orig_finish(rsa); if (k11->provider) pkcs11_provider_unref(k11->provider); - if (k11->keyid) - xfree(k11->keyid); - xfree(k11); + free(k11->keyid); + free(k11); } return (rv); } @@ -226,7 +227,7 @@ pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa, CK_OBJECT_HANDLE obj; CK_ULONG tlen = 0; CK_RV rv; - CK_OBJECT_CLASS private_key_class = CKO_PRIVATE_KEY; + CK_OBJECT_CLASS private_key_class = CKO_PRIVATE_KEY; CK_BBOOL true_val = CK_TRUE; CK_MECHANISM mech = { CKM_RSA_PKCS, NULL_PTR, 0 @@ -239,8 +240,6 @@ pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa, char *pin, prompt[1024]; int rval = -1; - /* some compilers complain about non-constant initializer so we - use NULL in CK_ATTRIBUTE above and set the values here */ key_filter[0].pValue = &private_key_class; key_filter[2].pValue = &true_val; @@ -264,13 +263,13 @@ pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa, pin = read_passphrase(prompt, RP_ALLOW_EOF); if (pin == NULL) return (-1); /* bail out */ - if ((rv = f->C_Login(si->session, CKU_USER, pin, strlen(pin))) - != CKR_OK) { - xfree(pin); + if ((rv = f->C_Login(si->session, CKU_USER, + (u_char *)pin, strlen(pin))) != CKR_OK) { + free(pin); error("C_Login failed: %lu", rv); return (-1); } - xfree(pin); + free(pin); si->logged_in = 1; } key_filter[1].pValue = k11->keyid; @@ -329,7 +328,7 @@ pkcs11_rsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx, /* remove trailing spaces */ static void -rmspace(char *buf, size_t len) +rmspace(u_char *buf, size_t len) { size_t i; @@ -367,8 +366,8 @@ pkcs11_open_session(struct pkcs11_provider *p, CK_ULONG slotidx, char *pin) return (-1); } if (login_required && pin) { - if ((rv = f->C_Login(session, CKU_USER, pin, strlen(pin))) - != CKR_OK) { + if ((rv = f->C_Login(session, CKU_USER, + (u_char *)pin, strlen(pin))) != CKR_OK) { error("C_Login failed: %lu", rv); if ((rv = f->C_CloseSession(session)) != CKR_OK) error("C_CloseSession failed: %lu", rv); @@ -385,36 +384,75 @@ pkcs11_open_session(struct pkcs11_provider *p, CK_ULONG slotidx, char *pin) * add 'wrapped' public keys to the 'keysp' array and increment nkeys. * keysp points to an (possibly empty) array with *nkeys keys. */ +static int pkcs11_fetch_keys_filter(struct pkcs11_provider *, CK_ULONG, + CK_ATTRIBUTE [], CK_ATTRIBUTE [3], Key ***, int *) + __attribute__((__bounded__(__minbytes__,4, 3 * sizeof(CK_ATTRIBUTE)))); + static int -pkcs11_fetch_keys(struct pkcs11_provider *p, CK_ULONG slotidx, Key ***keysp, - int *nkeys) +pkcs11_fetch_keys(struct pkcs11_provider *p, CK_ULONG slotidx, + Key ***keysp, int *nkeys) { - Key *key; - RSA *rsa; - int i; - CK_RV rv; - CK_OBJECT_HANDLE obj; - CK_ULONG nfound; - CK_SESSION_HANDLE session; - CK_FUNCTION_LIST *f; - CK_OBJECT_CLASS pubkey_class = CKO_PUBLIC_KEY; + CK_OBJECT_CLASS pubkey_class = CKO_PUBLIC_KEY; + CK_OBJECT_CLASS cert_class = CKO_CERTIFICATE; CK_ATTRIBUTE pubkey_filter[] = { { CKA_CLASS, NULL, sizeof(pubkey_class) } }; - CK_ATTRIBUTE attribs[] = { + CK_ATTRIBUTE cert_filter[] = { + { CKA_CLASS, NULL, sizeof(cert_class) } + }; + CK_ATTRIBUTE pubkey_attribs[] = { { CKA_ID, NULL, 0 }, { CKA_MODULUS, NULL, 0 }, { CKA_PUBLIC_EXPONENT, NULL, 0 } }; - - /* some compilers complain about non-constant initializer so we - use NULL in CK_ATTRIBUTE above and set the value here */ + CK_ATTRIBUTE cert_attribs[] = { + { CKA_ID, NULL, 0 }, + { CKA_SUBJECT, NULL, 0 }, + { CKA_VALUE, NULL, 0 } + }; pubkey_filter[0].pValue = &pubkey_class; + cert_filter[0].pValue = &cert_class; + + if (pkcs11_fetch_keys_filter(p, slotidx, pubkey_filter, pubkey_attribs, + keysp, nkeys) < 0 || + pkcs11_fetch_keys_filter(p, slotidx, cert_filter, cert_attribs, + keysp, nkeys) < 0) + return (-1); + return (0); +} + +static int +pkcs11_key_included(Key ***keysp, int *nkeys, Key *key) +{ + int i; + + for (i = 0; i < *nkeys; i++) + if (key_equal(key, (*keysp)[i])) + return (1); + return (0); +} + +static int +pkcs11_fetch_keys_filter(struct pkcs11_provider *p, CK_ULONG slotidx, + CK_ATTRIBUTE filter[], CK_ATTRIBUTE attribs[3], + Key ***keysp, int *nkeys) +{ + Key *key; + RSA *rsa; + X509 *x509; + EVP_PKEY *evp; + int i; + const u_char *cp; + CK_RV rv; + CK_OBJECT_HANDLE obj; + CK_ULONG nfound; + CK_SESSION_HANDLE session; + CK_FUNCTION_LIST *f; f = p->function_list; session = p->slotinfo[slotidx].session; /* setup a filter the looks for public keys */ - if ((rv = f->C_FindObjectsInit(session, pubkey_filter, 1)) != CKR_OK) { + if ((rv = f->C_FindObjectsInit(session, filter, 1)) != CKR_OK) { error("C_FindObjectsInit failed: %lu", rv); return (-1); } @@ -442,35 +480,62 @@ pkcs11_fetch_keys(struct pkcs11_provider *p, CK_ULONG slotidx, Key ***keysp, /* allocate buffers for attributes */ for (i = 0; i < 3; i++) attribs[i].pValue = xmalloc(attribs[i].ulValueLen); - /* retrieve ID, modulus and public exponent of RSA key */ + /* + * retrieve ID, modulus and public exponent of RSA key, + * or ID, subject and value for certificates. + */ + rsa = NULL; if ((rv = f->C_GetAttributeValue(session, obj, attribs, 3)) != CKR_OK) { error("C_GetAttributeValue failed: %lu", rv); - } else if ((rsa = RSA_new()) == NULL) { - error("RSA_new failed"); + } else if (attribs[1].type == CKA_MODULUS ) { + if ((rsa = RSA_new()) == NULL) { + error("RSA_new failed"); + } else { + rsa->n = BN_bin2bn(attribs[1].pValue, + attribs[1].ulValueLen, NULL); + rsa->e = BN_bin2bn(attribs[2].pValue, + attribs[2].ulValueLen, NULL); + } } else { - rsa->n = BN_bin2bn(attribs[1].pValue, - attribs[1].ulValueLen, NULL); - rsa->e = BN_bin2bn(attribs[2].pValue, - attribs[2].ulValueLen, NULL); - if (rsa->n && rsa->e && - pkcs11_rsa_wrap(p, slotidx, &attribs[0], rsa) == 0) { - key = key_new(KEY_UNSPEC); - key->rsa = rsa; - key->type = KEY_RSA; - key->flags |= KEY_FLAG_EXT; + cp = attribs[2].pValue; + if ((x509 = X509_new()) == NULL) { + error("X509_new failed"); + } else if (d2i_X509(&x509, &cp, attribs[2].ulValueLen) + == NULL) { + error("d2i_X509 failed"); + } else if ((evp = X509_get_pubkey(x509)) == NULL || + evp->type != EVP_PKEY_RSA || + evp->pkey.rsa == NULL) { + debug("X509_get_pubkey failed or no rsa"); + } else if ((rsa = RSAPublicKey_dup(evp->pkey.rsa)) + == NULL) { + error("RSAPublicKey_dup"); + } + if (x509) + X509_free(x509); + } + if (rsa && rsa->n && rsa->e && + pkcs11_rsa_wrap(p, slotidx, &attribs[0], rsa) == 0) { + key = key_new(KEY_UNSPEC); + key->rsa = rsa; + key->type = KEY_RSA; + key->flags |= KEY_FLAG_EXT; + if (pkcs11_key_included(keysp, nkeys, key)) { + key_free(key); + } else { /* expand key array and add key */ *keysp = xrealloc(*keysp, *nkeys + 1, sizeof(Key *)); (*keysp)[*nkeys] = key; *nkeys = *nkeys + 1; debug("have %d keys", *nkeys); - } else { - RSA_free(rsa); } + } else if (rsa) { + RSA_free(rsa); } for (i = 0; i < 3; i++) - xfree(attribs[i].pValue); + free(attribs[i].pValue); } if ((rv = f->C_FindObjectsFinal(session)) != CKR_OK) error("C_FindObjectsFinal failed: %lu", rv); @@ -579,11 +644,9 @@ fail: if (need_finalize && (rv = f->C_Finalize(NULL)) != CKR_OK) error("C_Finalize failed: %lu", rv); if (p) { - if (p->slotlist) - xfree(p->slotlist); - if (p->slotinfo) - xfree(p->slotinfo); - xfree(p); + free(p->slotlist); + free(p->slotinfo); + free(p); } if (handle) dlclose(handle); @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-rsa.c,v 1.45 2010/08/31 09:58:37 djm Exp $ */ +/* $OpenBSD: ssh-rsa.c,v 1.50 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2000, 2003 Markus Friedl <markus@openbsd.org> * @@ -32,6 +32,7 @@ #include "compat.h" #include "misc.h" #include "ssh.h" +#include "digest.h" static int openssh_RSA_verify(int, u_char *, u_int, u_char *, u_int, RSA *); @@ -40,26 +41,30 @@ int ssh_rsa_sign(const Key *key, u_char **sigp, u_int *lenp, const u_char *data, u_int datalen) { - const EVP_MD *evp_md; - EVP_MD_CTX md; - u_char digest[EVP_MAX_MD_SIZE], *sig; + int hash_alg; + u_char digest[SSH_DIGEST_MAX_LENGTH], *sig; u_int slen, dlen, len; int ok, nid; Buffer b; - if (key == NULL || key->rsa == NULL || (key->type != KEY_RSA && - key->type != KEY_RSA_CERT && key->type != KEY_RSA_CERT_V00)) { - error("ssh_rsa_sign: no RSA key"); + if (key == NULL || key_type_plain(key->type) != KEY_RSA || + key->rsa == NULL) { + error("%s: no RSA key", __func__); return -1; } - nid = (datafellows & SSH_BUG_RSASIGMD5) ? NID_md5 : NID_sha1; - if ((evp_md = EVP_get_digestbynid(nid)) == NULL) { - error("ssh_rsa_sign: EVP_get_digestbynid %d failed", nid); + + /* hash the data */ + hash_alg = SSH_DIGEST_SHA1; + nid = NID_sha1; + if ((dlen = ssh_digest_bytes(hash_alg)) == 0) { + error("%s: bad hash algorithm %d", __func__, hash_alg); + return -1; + } + if (ssh_digest_memory(hash_alg, data, datalen, + digest, sizeof(digest)) != 0) { + error("%s: ssh_digest_memory failed", __func__); return -1; } - EVP_DigestInit(&md, evp_md); - EVP_DigestUpdate(&md, data, datalen); - EVP_DigestFinal(&md, digest, &dlen); slen = RSA_size(key->rsa); sig = xmalloc(slen); @@ -70,9 +75,9 @@ ssh_rsa_sign(const Key *key, u_char **sigp, u_int *lenp, if (ok != 1) { int ecode = ERR_get_error(); - error("ssh_rsa_sign: RSA_sign failed: %s", + error("%s: RSA_sign failed: %s", __func__, ERR_error_string(ecode, NULL)); - xfree(sig); + free(sig); return -1; } if (len < slen) { @@ -81,8 +86,8 @@ ssh_rsa_sign(const Key *key, u_char **sigp, u_int *lenp, memmove(sig + diff, sig, len); memset(sig, 0, diff); } else if (len > slen) { - error("ssh_rsa_sign: slen %u slen2 %u", slen, len); - xfree(sig); + error("%s: slen %u slen2 %u", __func__, slen, len); + free(sig); return -1; } /* encode signature */ @@ -98,7 +103,7 @@ ssh_rsa_sign(const Key *key, u_char **sigp, u_int *lenp, } buffer_free(&b); memset(sig, 's', slen); - xfree(sig); + free(sig); return 0; } @@ -108,71 +113,75 @@ ssh_rsa_verify(const Key *key, const u_char *signature, u_int signaturelen, const u_char *data, u_int datalen) { Buffer b; - const EVP_MD *evp_md; - EVP_MD_CTX md; + int hash_alg; char *ktype; - u_char digest[EVP_MAX_MD_SIZE], *sigblob; + u_char digest[SSH_DIGEST_MAX_LENGTH], *sigblob; u_int len, dlen, modlen; - int rlen, ret, nid; + int rlen, ret; - if (key == NULL || key->rsa == NULL || (key->type != KEY_RSA && - key->type != KEY_RSA_CERT && key->type != KEY_RSA_CERT_V00)) { - error("ssh_rsa_verify: no RSA key"); + if (key == NULL || key_type_plain(key->type) != KEY_RSA || + key->rsa == NULL) { + error("%s: no RSA key", __func__); return -1; } + if (BN_num_bits(key->rsa->n) < SSH_RSA_MINIMUM_MODULUS_SIZE) { - error("ssh_rsa_verify: RSA modulus too small: %d < minimum %d bits", - BN_num_bits(key->rsa->n), SSH_RSA_MINIMUM_MODULUS_SIZE); + error("%s: RSA modulus too small: %d < minimum %d bits", + __func__, BN_num_bits(key->rsa->n), + SSH_RSA_MINIMUM_MODULUS_SIZE); return -1; } buffer_init(&b); buffer_append(&b, signature, signaturelen); ktype = buffer_get_cstring(&b, NULL); if (strcmp("ssh-rsa", ktype) != 0) { - error("ssh_rsa_verify: cannot handle type %s", ktype); + error("%s: cannot handle type %s", __func__, ktype); buffer_free(&b); - xfree(ktype); + free(ktype); return -1; } - xfree(ktype); + free(ktype); sigblob = buffer_get_string(&b, &len); rlen = buffer_len(&b); buffer_free(&b); if (rlen != 0) { - error("ssh_rsa_verify: remaining bytes in signature %d", rlen); - xfree(sigblob); + error("%s: remaining bytes in signature %d", __func__, rlen); + free(sigblob); return -1; } /* RSA_verify expects a signature of RSA_size */ modlen = RSA_size(key->rsa); if (len > modlen) { - error("ssh_rsa_verify: len %u > modlen %u", len, modlen); - xfree(sigblob); + error("%s: len %u > modlen %u", __func__, len, modlen); + free(sigblob); return -1; } else if (len < modlen) { u_int diff = modlen - len; - debug("ssh_rsa_verify: add padding: modlen %u > len %u", + debug("%s: add padding: modlen %u > len %u", __func__, modlen, len); sigblob = xrealloc(sigblob, 1, modlen); memmove(sigblob + diff, sigblob, len); memset(sigblob, 0, diff); len = modlen; } - nid = (datafellows & SSH_BUG_RSASIGMD5) ? NID_md5 : NID_sha1; - if ((evp_md = EVP_get_digestbynid(nid)) == NULL) { - error("ssh_rsa_verify: EVP_get_digestbynid %d failed", nid); - xfree(sigblob); + /* hash the data */ + hash_alg = SSH_DIGEST_SHA1; + if ((dlen = ssh_digest_bytes(hash_alg)) == 0) { + error("%s: bad hash algorithm %d", __func__, hash_alg); + return -1; + } + if (ssh_digest_memory(hash_alg, data, datalen, + digest, sizeof(digest)) != 0) { + error("%s: ssh_digest_memory failed", __func__); return -1; } - EVP_DigestInit(&md, evp_md); - EVP_DigestUpdate(&md, data, datalen); - EVP_DigestFinal(&md, digest, &dlen); - ret = openssh_RSA_verify(nid, digest, dlen, sigblob, len, key->rsa); + ret = openssh_RSA_verify(hash_alg, digest, dlen, sigblob, len, + key->rsa); memset(digest, 'd', sizeof(digest)); memset(sigblob, 's', len); - xfree(sigblob); - debug("ssh_rsa_verify: signature %scorrect", (ret==0) ? "in" : ""); + free(sigblob); + debug("%s: signature %scorrect", __func__, (ret == 0) ? "in" : ""); return ret; } @@ -193,21 +202,9 @@ static const u_char id_sha1[] = { 0x05, 0x00, /* NULL */ 0x04, 0x14 /* Octet string, length 0x14 (20), followed by sha1 hash */ }; -/* - * id-md5 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) - * rsadsi(113549) digestAlgorithm(2) 5 } - */ -static const u_char id_md5[] = { - 0x30, 0x20, /* type Sequence, length 0x20 (32) */ - 0x30, 0x0c, /* type Sequence, length 0x09 */ - 0x06, 0x08, /* type OID, length 0x05 */ - 0x2a, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x02, 0x05, /* id-md5 */ - 0x05, 0x00, /* NULL */ - 0x04, 0x10 /* Octet string, length 0x10 (16), followed by md5 hash */ -}; static int -openssh_RSA_verify(int type, u_char *hash, u_int hashlen, +openssh_RSA_verify(int hash_alg, u_char *hash, u_int hashlen, u_char *sigbuf, u_int siglen, RSA *rsa) { u_int ret, rsasize, oidlen = 0, hlen = 0; @@ -216,17 +213,12 @@ openssh_RSA_verify(int type, u_char *hash, u_int hashlen, u_char *decrypted = NULL; ret = 0; - switch (type) { - case NID_sha1: + switch (hash_alg) { + case SSH_DIGEST_SHA1: oid = id_sha1; oidlen = sizeof(id_sha1); hlen = 20; break; - case NID_md5: - oid = id_md5; - oidlen = sizeof(id_md5); - hlen = 16; - break; default: goto done; } @@ -262,7 +254,6 @@ openssh_RSA_verify(int type, u_char *hash, u_int hashlen, } ret = 1; done: - if (decrypted) - xfree(decrypted); + free(decrypted); return ret; } diff --git a/ssh-sandbox.h b/ssh-sandbox.h index dfecd5aa..bd5fd837 100755..100644 --- a/ssh-sandbox.h +++ b/ssh-sandbox.h @@ -15,9 +15,10 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +struct monitor; struct ssh_sandbox; -struct ssh_sandbox *ssh_sandbox_init(void); +struct ssh_sandbox *ssh_sandbox_init(struct monitor *); void ssh_sandbox_child(struct ssh_sandbox *); void ssh_sandbox_parent_finish(struct ssh_sandbox *); void ssh_sandbox_parent_preauth(struct ssh_sandbox *, pid_t); @@ -33,8 +33,8 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.\" $OpenBSD: ssh.1,v 1.323 2011/09/11 06:59:05 okan Exp $ -.Dd $Mdocdate: September 11 2011 $ +.\" $OpenBSD: ssh.1,v 1.343 2013/12/07 11:58:46 naddy Exp $ +.Dd $Mdocdate: December 7 2013 $ .Dt SSH 1 .Os .Sh NAME @@ -47,6 +47,7 @@ .Op Fl b Ar bind_address .Op Fl c Ar cipher_spec .Op Fl D Oo Ar bind_address : Oc Ns Ar port +.Op Fl E Ar log_file .Op Fl e Ar escape_char .Op Fl F Ar configfile .Op Fl I Ar pkcs11 @@ -57,6 +58,7 @@ .Op Fl O Ar ctl_cmd .Op Fl o Ar option .Op Fl p Ar port +.Op Fl Q Cm cipher | cipher-auth | mac | kex | key .Op Fl R Oo Ar bind_address : Oc Ns Ar port : Ns Ar host : Ns Ar hostport .Op Fl S Ar ctl_path .Op Fl W Ar host : Ns Ar port @@ -217,6 +219,10 @@ indicates that the listening port be bound for local use only, while an empty address or .Sq * indicates that the port should be available from all interfaces. +.It Fl E Ar log_file +Append debug logs to +.Ar log_file +instead of standard error. .It Fl e Ar escape_char Sets the escape character for sessions with a pty (default: .Ql ~ ) . @@ -273,7 +279,8 @@ The default is .Pa ~/.ssh/identity for protocol version 1, and .Pa ~/.ssh/id_dsa , -.Pa ~/.ssh/id_ecdsa +.Pa ~/.ssh/id_ecdsa , +.Pa ~/.ssh/id_ed25519 and .Pa ~/.ssh/id_rsa for protocol version 2. @@ -410,6 +417,11 @@ For full details of the options listed below, and their possible values, see .It AddressFamily .It BatchMode .It BindAddress +.It CanonicalDomains +.It CanonicalizeFallbackLocal +.It CanonicalizeHostname +.It CanonicalizeMaxDots +.It CanonicalizePermittedCNAMEs .It ChallengeResponseAuthentication .It CheckHostIP .It Cipher @@ -449,6 +461,7 @@ For full details of the options listed below, and their possible values, see .It LocalForward .It LogLevel .It MACs +.It Match .It NoHostAuthenticationForLocalhost .It NumberOfPasswordPrompts .It PasswordAuthentication @@ -458,6 +471,7 @@ For full details of the options listed below, and their possible values, see .It PreferredAuthentications .It Protocol .It ProxyCommand +.It ProxyUseFdpass .It PubkeyAuthentication .It RekeyLimit .It RemoteForward @@ -482,6 +496,21 @@ For full details of the options listed below, and their possible values, see Port to connect to on the remote host. This can be specified on a per-host basis in the configuration file. +.It Fl Q Cm cipher | cipher-auth | mac | kex | key +Queries +.Nm +for the algorithms supported for the specified version 2. +The available features are: +.Ar cipher +(supported symmetric ciphers), +.Ar cipher-auth +(supported symmetric ciphers that support authenticated encryption), +.Ar mac +(supported message integrity codes), +.Ar kex +(key exchange algorithms), +.Ar key +(key types). .It Fl q Quiet mode. Causes most warning and diagnostic messages to be suppressed. @@ -506,7 +535,7 @@ from the local machine. Port forwardings can also be specified in the configuration file. Privileged ports can be forwarded only when logging in as root on the remote machine. -IPv6 addresses can be specified by enclosing the address in square braces. +IPv6 addresses can be specified by enclosing the address in square brackets. .Pp By default, the listening socket on the server will be bound to the loopback interface only. @@ -587,8 +616,8 @@ Implies .Fl T , .Cm ExitOnForwardFailure and -.Cm ClearAllForwardings -and works with Protocol version 2 only. +.Cm ClearAllForwardings . +Works with Protocol version 2 only. .It Fl w Xo .Ar local_tun Ns Op : Ns Ar remote_tun .Xc @@ -674,7 +703,7 @@ it provides additional mechanisms for confidentiality (the traffic is encrypted using AES, 3DES, Blowfish, CAST128, or Arcfour) and integrity (hmac-md5, hmac-sha1, hmac-sha2-256, hmac-sha2-512, -umac-64, hmac-ripemd160). +umac-64, umac-128, hmac-ripemd160). Protocol 1 lacks a strong mechanism for ensuring the integrity of the connection. .Pp @@ -729,12 +758,10 @@ key pair for authentication purposes. The server knows the public key, and only the user knows the private key. .Nm implements public key authentication protocol automatically, -using one of the DSA, ECDSA or RSA algorithms. +using one of the DSA, ECDSA, ED25519 or RSA algorithms. Protocol 1 is restricted to using only RSA keys, but protocol 2 may use any. -The -.Sx HISTORY -section of +The HISTORY section of .Xr ssl 8 contains a brief discussion of the DSA and RSA algorithms. .Pp @@ -758,6 +785,8 @@ This stores the private key in (protocol 2 DSA), .Pa ~/.ssh/id_ecdsa (protocol 2 ECDSA), +.Pa ~/.ssh/id_ed25519 +(protocol 2 ED25519), or .Pa ~/.ssh/id_rsa (protocol 2 RSA) @@ -768,6 +797,8 @@ and stores the public key in (protocol 2 DSA), .Pa ~/.ssh/id_ecdsa.pub (protocol 2 ECDSA), +.Pa ~/.ssh/id_ed25519.pub +(protocol 2 ED25519), or .Pa ~/.ssh/id_rsa.pub (protocol 2 RSA) @@ -790,9 +821,7 @@ instead of a set of public/private keys, signed certificates are used. This has the advantage that a single trusted certification authority can be used in place of many public/private keys. -See the -.Sx CERTIFICATES -section of +See the CERTIFICATES section of .Xr ssh-keygen 1 for more information. .Pp @@ -809,9 +838,12 @@ text, and prompts for a response. Protocol 2 allows multiple challenges and responses; protocol 1 is restricted to just one challenge/response. Examples of challenge-response authentication include -BSD Authentication (see +.Bx +Authentication (see .Xr login.conf 5 ) -and PAM (some non-OpenBSD systems). +and PAM (some +.Pf non- Ox +systems). .Pp Finally, if other authentication methods fail, .Nm @@ -926,6 +958,14 @@ option. .It Cm ~R Request rekeying of the connection (only useful for SSH protocol version 2 and if the peer supports it). +.It Cm ~V +Decrease the verbosity +.Pq Ic LogLevel +when errors are being written to stderr. +.It Cm ~v +Increase the verbosity +.Pq Ic LogLevel +when errors are being written to stderr. .El .Sh TCP FORWARDING Forwarding of arbitrary TCP connections over the secure channel can @@ -1298,8 +1338,8 @@ secret, but the recommended permissions are read/write/execute for the user, and not accessible by others. .Pp .It Pa ~/.ssh/authorized_keys -Lists the public keys (DSA/ECDSA/RSA) that can be used for logging in as -this user. +Lists the public keys (DSA, ECDSA, ED25519, RSA) +that can be used for logging in as this user. The format of this file is described in the .Xr sshd 8 manual page. @@ -1311,7 +1351,7 @@ This is the per-user configuration file. The file format and configuration options are described in .Xr ssh_config 5 . Because of the potential for abuse, this file must have strict permissions: -read/write for the user, and not accessible by others. +read/write for the user, and not writable by others. .Pp .It Pa ~/.ssh/environment Contains additional definitions for environment variables; see @@ -1321,6 +1361,7 @@ above. .It Pa ~/.ssh/identity .It Pa ~/.ssh/id_dsa .It Pa ~/.ssh/id_ecdsa +.It Pa ~/.ssh/id_ed25519 .It Pa ~/.ssh/id_rsa Contains the private key for authentication. These files @@ -1335,6 +1376,7 @@ sensitive part of this file using 3DES. .It Pa ~/.ssh/identity.pub .It Pa ~/.ssh/id_dsa.pub .It Pa ~/.ssh/id_ecdsa.pub +.It Pa ~/.ssh/id_ed25519.pub .It Pa ~/.ssh/id_rsa.pub Contains the public key for authentication. These files are not @@ -1374,8 +1416,9 @@ The file format and configuration options are described in .It Pa /etc/ssh/ssh_host_key .It Pa /etc/ssh/ssh_host_dsa_key .It Pa /etc/ssh/ssh_host_ecdsa_key +.It Pa /etc/ssh/ssh_host_ed25519_key .It Pa /etc/ssh/ssh_host_rsa_key -These three files contain the private parts of the host keys +These files contain the private parts of the host keys and are used for host-based authentication. If protocol version 1 is used, .Nm @@ -1426,77 +1469,118 @@ if an error occurred. .Xr ssh_config 5 , .Xr ssh-keysign 8 , .Xr sshd 8 +.Sh STANDARDS .Rs +.%A S. Lehtinen +.%A C. Lonvick +.%D January 2006 .%R RFC 4250 -.%T "The Secure Shell (SSH) Protocol Assigned Numbers" -.%D 2006 +.%T The Secure Shell (SSH) Protocol Assigned Numbers .Re +.Pp .Rs +.%A T. Ylonen +.%A C. Lonvick +.%D January 2006 .%R RFC 4251 -.%T "The Secure Shell (SSH) Protocol Architecture" -.%D 2006 +.%T The Secure Shell (SSH) Protocol Architecture .Re +.Pp .Rs +.%A T. Ylonen +.%A C. Lonvick +.%D January 2006 .%R RFC 4252 -.%T "The Secure Shell (SSH) Authentication Protocol" -.%D 2006 +.%T The Secure Shell (SSH) Authentication Protocol .Re +.Pp .Rs +.%A T. Ylonen +.%A C. Lonvick +.%D January 2006 .%R RFC 4253 -.%T "The Secure Shell (SSH) Transport Layer Protocol" -.%D 2006 +.%T The Secure Shell (SSH) Transport Layer Protocol .Re +.Pp .Rs +.%A T. Ylonen +.%A C. Lonvick +.%D January 2006 .%R RFC 4254 -.%T "The Secure Shell (SSH) Connection Protocol" -.%D 2006 +.%T The Secure Shell (SSH) Connection Protocol .Re +.Pp .Rs +.%A J. Schlyter +.%A W. Griffin +.%D January 2006 .%R RFC 4255 -.%T "Using DNS to Securely Publish Secure Shell (SSH) Key Fingerprints" -.%D 2006 +.%T Using DNS to Securely Publish Secure Shell (SSH) Key Fingerprints .Re +.Pp .Rs +.%A F. Cusack +.%A M. Forssen +.%D January 2006 .%R RFC 4256 -.%T "Generic Message Exchange Authentication for the Secure Shell Protocol (SSH)" -.%D 2006 +.%T Generic Message Exchange Authentication for the Secure Shell Protocol (SSH) .Re +.Pp .Rs +.%A J. Galbraith +.%A P. Remaker +.%D January 2006 .%R RFC 4335 -.%T "The Secure Shell (SSH) Session Channel Break Extension" -.%D 2006 +.%T The Secure Shell (SSH) Session Channel Break Extension .Re +.Pp .Rs +.%A M. Bellare +.%A T. Kohno +.%A C. Namprempre +.%D January 2006 .%R RFC 4344 -.%T "The Secure Shell (SSH) Transport Layer Encryption Modes" -.%D 2006 +.%T The Secure Shell (SSH) Transport Layer Encryption Modes .Re +.Pp .Rs +.%A B. Harris +.%D January 2006 .%R RFC 4345 -.%T "Improved Arcfour Modes for the Secure Shell (SSH) Transport Layer Protocol" -.%D 2006 +.%T Improved Arcfour Modes for the Secure Shell (SSH) Transport Layer Protocol .Re +.Pp .Rs +.%A M. Friedl +.%A N. Provos +.%A W. Simpson +.%D March 2006 .%R RFC 4419 -.%T "Diffie-Hellman Group Exchange for the Secure Shell (SSH) Transport Layer Protocol" -.%D 2006 +.%T Diffie-Hellman Group Exchange for the Secure Shell (SSH) Transport Layer Protocol .Re +.Pp .Rs +.%A J. Galbraith +.%A R. Thayer +.%D November 2006 .%R RFC 4716 -.%T "The Secure Shell (SSH) Public Key File Format" -.%D 2006 +.%T The Secure Shell (SSH) Public Key File Format .Re +.Pp .Rs +.%A D. Stebila +.%A J. Green +.%D December 2009 .%R RFC 5656 -.%T "Elliptic Curve Algorithm Integration in the Secure Shell Transport Layer" -.%D 2009 +.%T Elliptic Curve Algorithm Integration in the Secure Shell Transport Layer .Re +.Pp .Rs -.%T "Hash Visualization: a New Technique to improve Real-World Security" .%A A. Perrig .%A D. Song .%D 1999 -.%O "International Workshop on Cryptographic Techniques and E-Commerce (CrypTEC '99)" +.%O International Workshop on Cryptographic Techniques and E-Commerce (CrypTEC '99) +.%T Hash Visualization: a New Technique to improve Real-World Security .Re .Sh AUTHORS OpenSSH is a derivative of the original and free @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh.c,v 1.368 2011/10/24 02:10:46 djm Exp $ */ +/* $OpenBSD: ssh.c,v 1.397 2013/12/29 05:42:16 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -197,13 +197,13 @@ usage(void) { fprintf(stderr, "usage: ssh [-1246AaCfgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec]\n" -" [-D [bind_address:]port] [-e escape_char] [-F configfile]\n" -" [-I pkcs11] [-i identity_file]\n" -" [-L [bind_address:]port:host:hostport]\n" -" [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]\n" -" [-R [bind_address:]port:host:hostport] [-S ctl_path]\n" -" [-W host:port] [-w local_tun[:remote_tun]]\n" -" [user@]hostname [command]\n" +" [-D [bind_address:]port] [-E log_file] [-e escape_char]\n" +" [-F configfile] [-I pkcs11] [-i identity_file]\n" +" [-L [bind_address:]port:host:hostport] [-l login_name] [-m mac_spec]\n" +" [-O ctl_cmd] [-o option] [-p port]\n" +" [-Q cipher | cipher-auth | mac | kex | key]\n" +" [-R [bind_address:]port:host:hostport] [-S ctl_path] [-W host:port]\n" +" [-w local_tun[:remote_tun]] [user@]hostname [command]\n" ); exit(255); } @@ -226,11 +226,139 @@ tilde_expand_paths(char **paths, u_int num_paths) for (i = 0; i < num_paths; i++) { cp = tilde_expand_filename(paths[i], original_real_uid); - xfree(paths[i]); + free(paths[i]); paths[i] = cp; } } +static struct addrinfo * +resolve_host(const char *name, u_int port, int logerr, char *cname, size_t clen) +{ + char strport[NI_MAXSERV]; + struct addrinfo hints, *res; + int gaierr, loglevel = SYSLOG_LEVEL_DEBUG1; + + snprintf(strport, sizeof strport, "%u", port); + bzero(&hints, sizeof(hints)); + hints.ai_family = options.address_family; + hints.ai_socktype = SOCK_STREAM; + if (cname != NULL) + hints.ai_flags = AI_CANONNAME; + if ((gaierr = getaddrinfo(name, strport, &hints, &res)) != 0) { + if (logerr || (gaierr != EAI_NONAME && gaierr != EAI_NODATA)) + loglevel = SYSLOG_LEVEL_ERROR; + do_log2(loglevel, "%s: Could not resolve hostname %.100s: %s", + __progname, name, ssh_gai_strerror(gaierr)); + return NULL; + } + if (cname != NULL && res->ai_canonname != NULL) { + if (strlcpy(cname, res->ai_canonname, clen) >= clen) { + error("%s: host \"%s\" cname \"%s\" too long (max %lu)", + __func__, name, res->ai_canonname, (u_long)clen); + if (clen > 0) + *cname = '\0'; + } + } + return res; +} + +/* + * Check whether the cname is a permitted replacement for the hostname + * and perform the replacement if it is. + */ +static int +check_follow_cname(char **namep, const char *cname) +{ + int i; + struct allowed_cname *rule; + + if (*cname == '\0' || options.num_permitted_cnames == 0 || + strcmp(*namep, cname) == 0) + return 0; + if (options.canonicalize_hostname == SSH_CANONICALISE_NO) + return 0; + /* + * Don't attempt to canonicalize names that will be interpreted by + * a proxy unless the user specifically requests so. + */ + if (options.proxy_command != NULL && + options.canonicalize_hostname != SSH_CANONICALISE_ALWAYS) + return 0; + debug3("%s: check \"%s\" CNAME \"%s\"", __func__, *namep, cname); + for (i = 0; i < options.num_permitted_cnames; i++) { + rule = options.permitted_cnames + i; + if (match_pattern_list(*namep, rule->source_list, + strlen(rule->source_list), 1) != 1 || + match_pattern_list(cname, rule->target_list, + strlen(rule->target_list), 1) != 1) + continue; + verbose("Canonicalized DNS aliased hostname " + "\"%s\" => \"%s\"", *namep, cname); + free(*namep); + *namep = xstrdup(cname); + return 1; + } + return 0; +} + +/* + * Attempt to resolve the supplied hostname after applying the user's + * canonicalization rules. Returns the address list for the host or NULL + * if no name was found after canonicalization. + */ +static struct addrinfo * +resolve_canonicalize(char **hostp, u_int port) +{ + int i, ndots; + char *cp, *fullhost, cname_target[NI_MAXHOST]; + struct addrinfo *addrs; + + if (options.canonicalize_hostname == SSH_CANONICALISE_NO) + return NULL; + /* + * Don't attempt to canonicalize names that will be interpreted by + * a proxy unless the user specifically requests so. + */ + if (options.proxy_command != NULL && + options.canonicalize_hostname != SSH_CANONICALISE_ALWAYS) + return NULL; + /* Don't apply canonicalization to sufficiently-qualified hostnames */ + ndots = 0; + for (cp = *hostp; *cp != '\0'; cp++) { + if (*cp == '.') + ndots++; + } + if (ndots > options.canonicalize_max_dots) { + debug3("%s: not canonicalizing hostname \"%s\" (max dots %d)", + __func__, *hostp, options.canonicalize_max_dots); + return NULL; + } + /* Attempt each supplied suffix */ + for (i = 0; i < options.num_canonical_domains; i++) { + *cname_target = '\0'; + xasprintf(&fullhost, "%s.%s.", *hostp, + options.canonical_domains[i]); + if ((addrs = resolve_host(fullhost, options.port, 0, + cname_target, sizeof(cname_target))) == NULL) { + free(fullhost); + continue; + } + /* Remove trailing '.' */ + fullhost[strlen(fullhost) - 1] = '\0'; + /* Follow CNAME if requested */ + if (!check_follow_cname(&fullhost, cname_target)) { + debug("Canonicalized hostname \"%s\" => \"%s\"", + *hostp, fullhost); + } + free(*hostp); + *hostp = fullhost; + return addrs; + } + if (!options.canonicalize_fallback_local) + fatal("%s: Could not resolve host \"%s\"", __progname, host); + return NULL; +} + /* * Main program for the ssh client. */ @@ -238,16 +366,16 @@ int main(int ac, char **av) { int i, r, opt, exit_status, use_syslog; - char *p, *cp, *line, *argv0, buf[MAXPATHLEN], *host_arg; + char *p, *cp, *line, *argv0, buf[MAXPATHLEN], *host_arg, *logfile; char thishost[NI_MAXHOST], shorthost[NI_MAXHOST], portstr[NI_MAXSERV]; + char cname[NI_MAXHOST]; struct stat st; struct passwd *pw; - int dummy, timeout_ms; + int timeout_ms; extern int optind, optreset; extern char *optarg; - - struct servent *sp; Forward fwd; + struct addrinfo *addrs = NULL; /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ sanitise_stdfd(); @@ -299,7 +427,7 @@ main(int ac, char **av) /* Get user data. */ pw = getpwuid(original_real_uid); if (!pw) { - logit("You don't exist, go away!"); + logit("No user exists for uid %lu", (u_long)original_real_uid); exit(255); } /* Take a copy of the returned structure. */ @@ -322,11 +450,12 @@ main(int ac, char **av) /* Parse command-line arguments. */ host = NULL; use_syslog = 0; + logfile = NULL; argv0 = av[0]; again: while ((opt = getopt(ac, av, "1246ab:c:e:fgi:kl:m:no:p:qstvx" - "ACD:F:I:KL:MNO:PR:S:TVw:W:XYy")) != -1) { + "ACD:E:F:I:KL:MNO:PQ:R:S:TVw:W:XYy")) != -1) { switch (opt) { case '1': options.protocol = SSH_PROTO_1; @@ -356,6 +485,9 @@ main(int ac, char **av) case 'y': use_syslog = 1; break; + case 'E': + logfile = xstrdup(optarg); + break; case 'Y': options.forward_x11 = 1; options.forward_x11_trusted = 1; @@ -385,6 +517,28 @@ main(int ac, char **av) case 'P': /* deprecated */ options.use_privileged_port = 0; break; + case 'Q': + cp = NULL; + if (strcmp(optarg, "cipher") == 0) + cp = cipher_alg_list('\n', 0); + else if (strcmp(optarg, "cipher-auth") == 0) + cp = cipher_alg_list('\n', 1); + else if (strcmp(optarg, "mac") == 0) + cp = mac_alg_list('\n'); + else if (strcmp(optarg, "kex") == 0) + cp = kex_alg_list('\n'); + else if (strcmp(optarg, "key") == 0) + cp = key_alg_list(0, 0); + else if (strcmp(optarg, "key-cert") == 0) + cp = key_alg_list(1, 0); + else if (strcmp(optarg, "key-plain") == 0) + cp = key_alg_list(0, 1); + if (cp == NULL) + fatal("Unsupported query \"%s\"", optarg); + printf("%s\n", cp); + free(cp); + exit(0); + break; case 'a': options.forward_agent = 0; break; @@ -405,12 +559,7 @@ main(int ac, char **av) strerror(errno)); break; } - if (options.num_identity_files >= - SSH_MAX_IDENTITY_FILES) - fatal("Too many identity files specified " - "(max %d)", SSH_MAX_IDENTITY_FILES); - options.identity_files[options.num_identity_files++] = - xstrdup(optarg); + add_identity_file(&options, NULL, optarg, 1); break; case 'I': #ifdef ENABLE_PKCS11 @@ -432,9 +581,8 @@ main(int ac, char **av) } else { if (options.log_level < SYSLOG_LEVEL_DEBUG3) options.log_level++; - break; } - /* FALLTHROUGH */ + break; case 'V': fprintf(stderr, "%s, %s\n", SSH_RELEASE, SSLeay_version(SSLEAY_VERSION)); @@ -459,7 +607,7 @@ main(int ac, char **av) if (parse_forward(&fwd, optarg, 1, 0)) { stdio_forward_host = fwd.listen_host; stdio_forward_port = fwd.listen_port; - xfree(fwd.connect_host); + free(fwd.connect_host); } else { fprintf(stderr, "Bad stdio forwarding specification '%s'\n", @@ -581,12 +729,12 @@ main(int ac, char **av) options.request_tty = REQUEST_TTY_NO; break; case 'o': - dummy = 1; line = xstrdup(optarg); - if (process_config_line(&options, host ? host : "", - line, "command-line", 0, &dummy) != 0) + if (process_config_line(&options, pw, host ? host : "", + line, "command-line", 0, NULL, SSHCONF_USERCONF) + != 0) exit(255); - xfree(line); + free(line); break; case 's': subsystem_flag = 1; @@ -618,9 +766,9 @@ main(int ac, char **av) usage(); options.user = p; *cp = '\0'; - host = ++cp; + host = xstrdup(++cp); } else - host = *av; + host = xstrdup(*av); if (ac > 1) { optind = optreset = 1; goto again; @@ -632,16 +780,15 @@ main(int ac, char **av) if (!host) usage(); + lowercase(host); + host_arg = xstrdup(host); + OpenSSL_add_all_algorithms(); ERR_load_crypto_strings(); /* Initialize the command to execute on remote host. */ buffer_init(&command); - if (options.request_tty == REQUEST_TTY_YES || - options.request_tty == REQUEST_TTY_FORCE) - tty_flag = 1; - /* * Save the command to execute on the remote host in a buffer. There * is no limit on the length of the command, except by the maximum @@ -649,7 +796,6 @@ main(int ac, char **av) */ if (!ac) { /* No command specified - execute shell on a tty. */ - tty_flag = options.request_tty != REQUEST_TTY_NO; if (subsystem_flag) { fprintf(stderr, "You must specify a subsystem to invoke.\n"); @@ -670,46 +816,42 @@ main(int ac, char **av) fatal("Cannot fork into background without a command " "to execute."); - /* Allocate a tty by default if no command specified. */ - if (buffer_len(&command) == 0) - tty_flag = options.request_tty != REQUEST_TTY_NO; - - /* Force no tty */ - if (options.request_tty == REQUEST_TTY_NO || muxclient_command != 0) - tty_flag = 0; - /* Do not allocate a tty if stdin is not a tty. */ - if ((!isatty(fileno(stdin)) || stdin_null_flag) && - options.request_tty != REQUEST_TTY_FORCE) { - if (tty_flag) - logit("Pseudo-terminal will not be allocated because " - "stdin is not a terminal."); - tty_flag = 0; - } - /* * Initialize "log" output. Since we are the client all output - * actually goes to stderr. + * goes to stderr unless otherwise specified by -y or -E. */ + if (use_syslog && logfile != NULL) + fatal("Can't specify both -y and -E"); + if (logfile != NULL) { + log_redirect_stderr_to(logfile); + free(logfile); + } log_init(argv0, options.log_level == -1 ? SYSLOG_LEVEL_INFO : options.log_level, SYSLOG_FACILITY_USER, !use_syslog); + if (debug_flag) + logit("%s, %s", SSH_VERSION, SSLeay_version(SSLEAY_VERSION)); + /* * Read per-user configuration file. Ignore the system wide config * file if the user specifies a config file on the command line. */ if (config != NULL) { - if (!read_config_file(config, host, &options, 0)) + if (strcasecmp(config, "none") != 0 && + !read_config_file(config, pw, host, &options, + SSHCONF_USERCONF)) fatal("Can't open user config file %.100s: " "%.100s", config, strerror(errno)); } else { r = snprintf(buf, sizeof buf, "%s/%s", pw->pw_dir, _PATH_SSH_USER_CONFFILE); if (r > 0 && (size_t)r < sizeof(buf)) - (void)read_config_file(buf, host, &options, 1); + (void)read_config_file(buf, pw, host, &options, + SSHCONF_CHECKPERM|SSHCONF_USERCONF); /* Read systemwide configuration file after user config. */ - (void)read_config_file(_PATH_HOST_CONFIG_FILE, host, + (void)read_config_file(_PATH_HOST_CONFIG_FILE, pw, host, &options, 0); } @@ -718,25 +860,74 @@ main(int ac, char **av) channel_set_af(options.address_family); + /* Tidy and check options */ + if (options.host_key_alias != NULL) + lowercase(options.host_key_alias); + if (options.proxy_command != NULL && + strcmp(options.proxy_command, "-") == 0 && + options.proxy_use_fdpass) + fatal("ProxyCommand=- and ProxyUseFDPass are incompatible"); +#ifndef HAVE_CYGWIN + if (original_effective_uid != 0) + options.use_privileged_port = 0; +#endif + /* reinit */ log_init(argv0, options.log_level, SYSLOG_FACILITY_USER, !use_syslog); + if (options.request_tty == REQUEST_TTY_YES || + options.request_tty == REQUEST_TTY_FORCE) + tty_flag = 1; + + /* Allocate a tty by default if no command specified. */ + if (buffer_len(&command) == 0) + tty_flag = options.request_tty != REQUEST_TTY_NO; + + /* Force no tty */ + if (options.request_tty == REQUEST_TTY_NO || muxclient_command != 0) + tty_flag = 0; + /* Do not allocate a tty if stdin is not a tty. */ + if ((!isatty(fileno(stdin)) || stdin_null_flag) && + options.request_tty != REQUEST_TTY_FORCE) { + if (tty_flag) + logit("Pseudo-terminal will not be allocated because " + "stdin is not a terminal."); + tty_flag = 0; + } + seed_rng(); if (options.user == NULL) options.user = xstrdup(pw->pw_name); /* Get default port if port has not been set. */ - if (options.port == 0) { - sp = getservbyname(SSH_SERVICE_NAME, "tcp"); - options.port = sp ? ntohs(sp->s_port) : SSH_DEFAULT_PORT; - } + if (options.port == 0) + options.port = default_ssh_port(); /* preserve host name given on command line for %n expansion */ - host_arg = host; if (options.hostname != NULL) { - host = percent_expand(options.hostname, + /* NB. Please keep in sync with readconf.c:match_cfg_line() */ + cp = percent_expand(options.hostname, "h", host, (char *)NULL); + free(host); + host = cp; + } + + /* If canonicalization requested then try to apply it */ + if (options.canonicalize_hostname != SSH_CANONICALISE_NO) + addrs = resolve_canonicalize(&host, options.port); + /* + * If canonicalization not requested, or if it failed then try to + * resolve the bare hostname name using the system resolver's usual + * search rules. Skip the lookup if a ProxyCommand is being used + * unless the user has specifically requested canonicalisation. + */ + if (addrs == NULL && (options.proxy_command == NULL || + options.canonicalize_hostname == SSH_CANONICALISE_ALWAYS)) { + if ((addrs = resolve_host(host, options.port, 1, + cname, sizeof(cname))) == NULL) + cleanup_exit(255); /* resolve_host logs the error */ + check_follow_cname(&host, cname); } if (gethostname(thishost, sizeof(thishost)) == -1) @@ -753,36 +944,18 @@ main(int ac, char **av) "p", portstr, "u", pw->pw_name, "L", shorthost, (char *)NULL); debug3("expanded LocalCommand: %s", options.local_command); - xfree(cp); - } - - /* force lowercase for hostkey matching */ - if (options.host_key_alias != NULL) { - for (p = options.host_key_alias; *p; p++) - if (isupper(*p)) - *p = (char)tolower(*p); - } - - if (options.proxy_command != NULL && - strcmp(options.proxy_command, "none") == 0) { - xfree(options.proxy_command); - options.proxy_command = NULL; - } - if (options.control_path != NULL && - strcmp(options.control_path, "none") == 0) { - xfree(options.control_path); - options.control_path = NULL; + free(cp); } if (options.control_path != NULL) { cp = tilde_expand_filename(options.control_path, original_real_uid); - xfree(options.control_path); + free(options.control_path); options.control_path = percent_expand(cp, "h", host, "l", thishost, "n", host_arg, "r", options.user, "p", portstr, "u", pw->pw_name, "L", shorthost, (char *)NULL); - xfree(cp); + free(cp); } if (muxclient_command != 0 && options.control_path == NULL) fatal("No ControlPath specified for \"-O\" command"); @@ -792,16 +965,17 @@ main(int ac, char **av) timeout_ms = options.connection_timeout * 1000; /* Open a connection to the remote host. */ - if (ssh_connect(host, &hostaddr, options.port, - options.address_family, options.connection_attempts, &timeout_ms, - options.tcp_keep_alive, -#ifdef HAVE_CYGWIN - options.use_privileged_port, -#else - original_effective_uid == 0 && options.use_privileged_port, -#endif - options.proxy_command) != 0) - exit(255); + if (ssh_connect(host, addrs, &hostaddr, options.port, + options.address_family, options.connection_attempts, + &timeout_ms, options.tcp_keep_alive, + options.use_privileged_port) != 0) + exit(255); + + if (addrs != NULL) + freeaddrinfo(addrs); + + packet_set_timeout(options.server_alive_interval, + options.server_alive_count_max); if (timeout_ms > 0) debug3("timeout: %d ms remain after connect", timeout_ms); @@ -819,7 +993,7 @@ main(int ac, char **av) sensitive_data.external_keysign = 0; if (options.rhosts_rsa_authentication || options.hostbased_authentication) { - sensitive_data.nkeys = 7; + sensitive_data.nkeys = 9; sensitive_data.keys = xcalloc(sensitive_data.nkeys, sizeof(Key)); for (i = 0; i < sensitive_data.nkeys; i++) @@ -836,21 +1010,26 @@ main(int ac, char **av) #endif sensitive_data.keys[3] = key_load_private_cert(KEY_RSA, _PATH_HOST_RSA_KEY_FILE, "", NULL); - sensitive_data.keys[4] = key_load_private_type(KEY_DSA, + sensitive_data.keys[4] = key_load_private_cert(KEY_ED25519, + _PATH_HOST_ED25519_KEY_FILE, "", NULL); + sensitive_data.keys[5] = key_load_private_type(KEY_DSA, _PATH_HOST_DSA_KEY_FILE, "", NULL, NULL); #ifdef OPENSSL_HAS_ECC - sensitive_data.keys[5] = key_load_private_type(KEY_ECDSA, + sensitive_data.keys[6] = key_load_private_type(KEY_ECDSA, _PATH_HOST_ECDSA_KEY_FILE, "", NULL, NULL); #endif - sensitive_data.keys[6] = key_load_private_type(KEY_RSA, + sensitive_data.keys[7] = key_load_private_type(KEY_RSA, _PATH_HOST_RSA_KEY_FILE, "", NULL, NULL); + sensitive_data.keys[8] = key_load_private_type(KEY_ED25519, + _PATH_HOST_ED25519_KEY_FILE, "", NULL, NULL); PRIV_END; if (options.hostbased_authentication == 1 && sensitive_data.keys[0] == NULL && - sensitive_data.keys[4] == NULL && sensitive_data.keys[5] == NULL && - sensitive_data.keys[6] == NULL) { + sensitive_data.keys[6] == NULL && + sensitive_data.keys[7] == NULL && + sensitive_data.keys[8] == NULL) { sensitive_data.keys[1] = key_load_cert( _PATH_HOST_DSA_KEY_FILE); #ifdef OPENSSL_HAS_ECC @@ -859,14 +1038,18 @@ main(int ac, char **av) #endif sensitive_data.keys[3] = key_load_cert( _PATH_HOST_RSA_KEY_FILE); - sensitive_data.keys[4] = key_load_public( + sensitive_data.keys[4] = key_load_cert( + _PATH_HOST_ED25519_KEY_FILE); + sensitive_data.keys[5] = key_load_public( _PATH_HOST_DSA_KEY_FILE, NULL); #ifdef OPENSSL_HAS_ECC - sensitive_data.keys[5] = key_load_public( + sensitive_data.keys[6] = key_load_public( _PATH_HOST_ECDSA_KEY_FILE, NULL); #endif - sensitive_data.keys[6] = key_load_public( + sensitive_data.keys[7] = key_load_public( _PATH_HOST_RSA_KEY_FILE, NULL); + sensitive_data.keys[8] = key_load_public( + _PATH_HOST_ED25519_KEY_FILE, NULL); sensitive_data.external_keysign = 1; } } @@ -933,13 +1116,11 @@ main(int ac, char **av) sensitive_data.keys[i] = NULL; } } - xfree(sensitive_data.keys); + free(sensitive_data.keys); } for (i = 0; i < options.num_identity_files; i++) { - if (options.identity_files[i]) { - xfree(options.identity_files[i]); - options.identity_files[i] = NULL; - } + free(options.identity_files[i]); + options.identity_files[i] = NULL; if (options.identity_keys[i]) { key_free(options.identity_keys[i]); options.identity_keys[i] = NULL; @@ -999,6 +1180,7 @@ control_persist_detach(void) if (devnull > STDERR_FILENO) close(devnull); } + daemon(1, 1); setproctitle("%s [mux]", options.control_path); } @@ -1067,7 +1249,7 @@ ssh_init_stdio_forwarding(void) if (stdio_forward_host == NULL) return; - if (!compat20) + if (!compat20) fatal("stdio forwarding require Protocol 2"); debug3("%s: %s:%d", __func__, stdio_forward_host, stdio_forward_port); @@ -1239,7 +1421,7 @@ ssh_session(void) char *proto, *data; /* Get reasonable local authentication information. */ client_x11_get_proto(display, options.xauth_location, - options.forward_x11_trusted, + options.forward_x11_trusted, options.forward_x11_timeout, &proto, &data); /* Request forwarding with authentication spoofing. */ @@ -1359,6 +1541,10 @@ ssh_session2_setup(int id, int success, void *arg) packet_send(); } + /* Tell the packet module whether this is an interactive session. */ + packet_set_interactive(interactive, + options.ip_qos_interactive, options.ip_qos_bulk); + client_session2_setup(id, tty_flag, subsystem_flag, getenv("TERM"), NULL, fileno(stdin), &command, environ); } @@ -1453,6 +1639,11 @@ ssh_session2(void) if (!no_shell_flag || (datafellows & SSH_BUG_DUMMYCHAN)) id = ssh_session2_open(); + else { + packet_set_interactive( + options.control_master == SSHCTL_MASTER_NO, + options.ip_qos_interactive, options.ip_qos_bulk); + } /* If we don't expect to open a new session, then disallow it */ if (options.control_master == SSHCTL_MASTER_NO && @@ -1525,7 +1716,7 @@ load_public_identity_files(void) xstrdup(options.pkcs11_provider); /* XXX */ n_ids++; } - xfree(keys); + free(keys); } #endif /* ENABLE_PKCS11 */ if ((pw = getpwuid(original_real_uid)) == NULL) @@ -1536,8 +1727,9 @@ load_public_identity_files(void) fatal("load_public_identity_files: gethostname: %s", strerror(errno)); for (i = 0; i < options.num_identity_files; i++) { - if (n_ids >= SSH_MAX_IDENTITY_FILES) { - xfree(options.identity_files[i]); + if (n_ids >= SSH_MAX_IDENTITY_FILES || + strcasecmp(options.identity_files[i], "none") == 0) { + free(options.identity_files[i]); continue; } cp = tilde_expand_filename(options.identity_files[i], @@ -1545,11 +1737,11 @@ load_public_identity_files(void) filename = percent_expand(cp, "d", pwdir, "u", pwname, "l", thishost, "h", host, "r", options.user, (char *)NULL); - xfree(cp); + free(cp); public = key_load_public(filename, NULL); debug("identity file %s type %d", filename, public ? public->type : -1); - xfree(options.identity_files[i]); + free(options.identity_files[i]); identity_files[n_ids] = filename; identity_keys[n_ids] = public; @@ -1562,14 +1754,14 @@ load_public_identity_files(void) debug("identity file %s type %d", cp, public ? public->type : -1); if (public == NULL) { - xfree(cp); + free(cp); continue; } if (!key_is_cert(public)) { debug("%s: key %s type %s is not a certificate", __func__, cp, key_type(public)); key_free(public); - xfree(cp); + free(cp); continue; } identity_keys[n_ids] = public; @@ -1582,9 +1774,9 @@ load_public_identity_files(void) memcpy(options.identity_keys, identity_keys, sizeof(identity_keys)); bzero(pwname, strlen(pwname)); - xfree(pwname); + free(pwname); bzero(pwdir, strlen(pwdir)); - xfree(pwdir); + free(pwdir); } static void @@ -1601,4 +1793,3 @@ main_sigchld_handler(int sig) signal(sig, main_sigchld_handler); errno = save_errno; } - @@ -1,4 +1,4 @@ -# $OpenBSD: ssh_config,v 1.26 2010/01/11 01:39:46 dtucker Exp $ +# $OpenBSD: ssh_config,v 1.28 2013/09/16 11:35:43 sthen Exp $ # This is the ssh client system-wide configuration file. See # ssh_config(5) for more information. This file provides defaults for @@ -45,5 +45,6 @@ # PermitLocalCommand no # VisualHostKey no # ProxyCommand ssh -q -W %h:%p gateway.example.com +# RekeyLimit 1G 1h SendEnv LANG LC_* diff --git a/ssh_config.5 b/ssh_config.5 index 78a542dc..3cadcd76 100644 --- a/ssh_config.5 +++ b/ssh_config.5 @@ -33,8 +33,8 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.\" $OpenBSD: ssh_config.5,v 1.154 2011/09/09 00:43:00 djm Exp $ -.Dd $Mdocdate: September 9 2011 $ +.\" $OpenBSD: ssh_config.5,v 1.184 2014/01/19 04:48:08 djm Exp $ +.Dd $Mdocdate: January 19 2014 $ .Dt SSH_CONFIG 5 .Os .Sh NAME @@ -100,6 +100,8 @@ keywords are case-insensitive and arguments are case-sensitive): .It Cm Host Restricts the following declarations (up to the next .Cm Host +or +.Cm Match keyword) to be only for those hosts that match one of the patterns given after the keyword. If more than one pattern is provided, they should be separated by whitespace. @@ -124,6 +126,73 @@ matches. See .Sx PATTERNS for more information on patterns. +.It Cm Match +Restricts the following declarations (up to the next +.Cm Host +or +.Cm Match +keyword) to be used only when the conditions following the +.Cm Match +keyword are satisfied. +Match conditions are specified using one or more keyword/criteria pairs +or the single token +.Cm all +which matches all criteria. +The available keywords are: +.Cm exec , +.Cm host , +.Cm originalhost , +.Cm user , +and +.Cm localuser . +.Pp +The +.Cm exec +keyword executes the specified command under the user's shell. +If the command returns a zero exit status then the condition is considered true. +Commands containing whitespace characters must be quoted. +The following character sequences in the command will be expanded prior to +execution: +.Ql %L +will be substituted by the first component of the local host name, +.Ql %l +will be substituted by the local host name (including any domain name), +.Ql %h +will be substituted by the target host name, +.Ql %n +will be substituted by the original target host name +specified on the command-line, +.Ql %p +the destination port, +.Ql %r +by the remote login username, and +.Ql %u +by the username of the user running +.Xr ssh 1 . +.Pp +The other keywords' criteria must be single entries or comma-separated +lists and may use the wildcard and negation operators described in the +.Sx PATTERNS +section. +The criteria for the +.Cm host +keyword are matched against the target hostname, after any substitution +by the +.Cm Hostname +option. +The +.Cm originalhost +keyword matches against the hostname as it was specified on the command-line. +The +.Cm user +keyword matches against the target username on the remote host. +The +.Cm localuser +keyword matches against the name of the local user running +.Xr ssh 1 +(this keyword may be useful in system-wide +.Nm +files). .It Cm AddressFamily Specifies which address family to use when connecting. Valid arguments are @@ -152,6 +221,75 @@ Note that this option does not work if .Cm UsePrivilegedPort is set to .Dq yes . +.It Cm CanonicalDomains +When +.Cm CanonicalizeHostname +is enabled, this option specifies the list of domain suffixes in which to +search for the specified destination host. +.It Cm CanonicalizeFallbackLocal +Specifies whether to fail with an error when hostname canonicalization fails. +The default, +.Dq yes , +will attempt to look up the unqualified hostname using the system resolver's +search rules. +A value of +.Dq no +will cause +.Xr ssh 1 +to fail instantly if +.Cm CanonicalizeHostname +is enabled and the target hostname cannot be found in any of the domains +specified by +.Cm CanonicalDomains . +.It Cm CanonicalizeHostname +Controls whether explicit hostname canonicalization is performed. +The default, +.Dq no , +is not to perform any name rewriting and let the system resolver handle all +hostname lookups. +If set to +.Dq yes +then, for connections that do not use a +.Cm ProxyCommand , +.Xr ssh 1 +will attempt to canonicalize the hostname specified on the command line +using the +.Cm CanonicalDomains +suffixes and +.Cm CanonicalizePermittedCNAMEs +rules. +If +.Cm CanonicalizeHostname +is set to +.Dq always , +then canonicalization is applied to proxied connections too. +.It Cm CanonicalizeMaxDots +Specifies the maximum number of dot characters in a hostname before +canonicalization is disabled. +The default, +.Dq 1 , +allows a single dot (i.e. hostname.subdomain). +.It Cm CanonicalizePermittedCNAMEs +Specifies rules to determine whether CNAMEs should be followed when +canonicalizing hostnames. +The rules consist of one or more arguments of +.Ar source_domain_list : Ns Ar target_domain_list , +where +.Ar source_domain_list +is a pattern-list of domains that may follow CNAMEs in canonicalization, +and +.Ar target_domain_list +is a pattern-list of domains that they may resolve to. +.Pp +For example, +.Dq *.a.example.com:*.b.example.com,*.c.example.com +will allow hostnames matching +.Dq *.a.example.com +to be canonicalized to names in the +.Dq *.b.example.com +or +.Dq *.c.example.com +domains. .It Cm ChallengeResponseAuthentication Specifies whether to use challenge-response authentication. The argument to this keyword must be @@ -196,7 +334,8 @@ The default is Specifies the ciphers allowed for protocol version 2 in order of preference. Multiple ciphers must be comma-separated. -The supported ciphers are +The supported ciphers are: +.Pp .Dq 3des-cbc , .Dq aes128-cbc , .Dq aes192-cbc , @@ -204,18 +343,29 @@ The supported ciphers are .Dq aes128-ctr , .Dq aes192-ctr , .Dq aes256-ctr , +.Dq aes128-gcm@openssh.com , +.Dq aes256-gcm@openssh.com , .Dq arcfour128 , .Dq arcfour256 , .Dq arcfour , .Dq blowfish-cbc , +.Dq cast128-cbc , and -.Dq cast128-cbc . +.Dq chacha20-poly1305@openssh.com . +.Pp The default is: .Bd -literal -offset 3n aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128, +aes128-gcm@openssh.com,aes256-gcm@openssh.com, +chacha20-poly1305@openssh.com, aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc, aes256-cbc,arcfour .Ed +.Pp +The list of available ciphers may also be obtained using the +.Fl Q +option of +.Xr ssh 1 . .It Cm ClearAllForwardings Specifies that all local, remote, and dynamic port forwardings specified in the configuration files or on the command line be @@ -324,7 +474,7 @@ will be substituted by the target host name, will be substituted by the original target host name specified on the command line, .Ql %p -the port, +the destination port, .Ql %r by the remote login username, and .Ql %u @@ -471,8 +621,7 @@ option is also enabled. .It Cm ForwardX11Timeout Specify a timeout for untrusted X11 forwarding using the format described in the -.Sx TIME FORMATS -section of +TIME FORMATS section of .Xr sshd_config 5 . X11 connections received by .Xr ssh 1 @@ -569,10 +718,11 @@ The default for this option is: ecdsa-sha2-nistp256-cert-v01@openssh.com, ecdsa-sha2-nistp384-cert-v01@openssh.com, ecdsa-sha2-nistp521-cert-v01@openssh.com, +ssh-ed25519-cert-v01@openssh.com, ssh-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com, ssh-rsa-cert-v00@openssh.com,ssh-dss-cert-v00@openssh.com, ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, -ssh-rsa,ssh-dss +ssh-ed25519,ssh-rsa,ssh-dss .Ed .Pp If hostkeys are known for the destination host then this default is modified @@ -602,6 +752,8 @@ should only use the authentication identity files configured in the files, even if .Xr ssh-agent 1 +or a +.Cm PKCS11Provider offers more identities. The argument to this keyword must be .Dq yes @@ -612,18 +764,21 @@ offers many different identities. The default is .Dq no . .It Cm IdentityFile -Specifies a file from which the user's DSA, ECDSA or DSA authentication +Specifies a file from which the user's DSA, ECDSA, ED25519 or RSA authentication identity is read. The default is .Pa ~/.ssh/identity for protocol version 1, and .Pa ~/.ssh/id_dsa , -.Pa ~/.ssh/id_ecdsa +.Pa ~/.ssh/id_ecdsa , +.Pa ~/.ssh/id_ed25519 and .Pa ~/.ssh/id_rsa for protocol version 2. Additionally, any identities represented by the authentication agent -will be used for authentication. +will be used for authentication unless +.Cm IdentitiesOnly +is set. .Xr ssh 1 will try to load certificate information from the filename obtained by appending @@ -652,6 +807,22 @@ Multiple .Cm IdentityFile directives will add to the list of identities tried (this behaviour differs from that of other configuration directives). +.Pp +.Cm IdentityFile +may be used in conjunction with +.Cm IdentitiesOnly +to select which identities in an agent are offered during authentication. +.It Cm IgnoreUnknown +Specifies a pattern-list of unknown options to be ignored if they are +encountered in configuration parsing. +This may be used to suppress errors if +.Nm +contains options that are unrecognised by +.Xr ssh 1 . +It is recommended that +.Cm IgnoreUnknown +be listed early in the configuration file as it will not be applied +to unknown options that appear before it. .It Cm IPQoS Specifies the IPv4 type-of-service or DSCP class for connections. Accepted values are @@ -713,6 +884,7 @@ Specifies the available KEX (Key Exchange) algorithms. Multiple algorithms must be comma-separated. The default is: .Bd -literal -offset indent +curve25519-sha256@libssh.org, ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521, diffie-hellman-group-exchange-sha256, diffie-hellman-group-exchange-sha1, @@ -790,12 +962,20 @@ in order of preference. The MAC algorithm is used in protocol version 2 for data integrity protection. Multiple algorithms must be comma-separated. +The algorithms that contain +.Dq -etm +calculate the MAC after encryption (encrypt-then-mac). +These are considered safer and their use recommended. The default is: .Bd -literal -offset indent -hmac-md5,hmac-sha1,umac-64@openssh.com, -hmac-ripemd160,hmac-sha1-96,hmac-md5-96, -hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512, -hmac-sha2-512-96 +hmac-md5-etm@openssh.com,hmac-sha1-etm@openssh.com, +umac-64-etm@openssh.com,umac-128-etm@openssh.com, +hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com, +hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com, +hmac-md5-96-etm@openssh.com, +hmac-md5,hmac-sha1,umac-64@openssh.com,umac-128@openssh.com, +hmac-sha2-256,hmac-sha2-512,hmac-ripemd160, +hmac-sha1-96,hmac-md5-96 .Ed .It Cm NoHostAuthenticationForLocalhost This option can be used if the home directory is shared across machines. @@ -907,6 +1087,14 @@ For example, the following directive would connect via an HTTP proxy at .Bd -literal -offset 3n ProxyCommand /usr/bin/nc -X connect -x 192.0.2.0:8080 %h %p .Ed +.It Cm ProxyUseFdpass +Specifies that +.Cm ProxyCommand +will pass a connected file descriptor back to +.Xr ssh 1 +instead of continuing to execute and pass data. +The default is +.Dq no . .It Cm PubkeyAuthentication Specifies whether to try public key authentication. The argument to this keyword must be @@ -918,8 +1106,9 @@ The default is This option applies to protocol version 2 only. .It Cm RekeyLimit Specifies the maximum amount of data that may be transmitted before the -session key is renegotiated. -The argument is the number of bytes, with an optional suffix of +session key is renegotiated, optionally followed a maximum amount of +time that may pass before the session key is renegotiated. +The first argument is specified in bytes and may have a suffix of .Sq K , .Sq M , or @@ -930,6 +1119,16 @@ The default is between and .Sq 4G , depending on the cipher. +The optional second value is specified in seconds and may use any of the +units documented in the +TIME FORMATS section of +.Xr sshd_config 5 . +The default value for +.Cm RekeyLimit +is +.Dq default none , +which means that rekeying is performed after the cipher's default amount +of data has been sent or received and no time based rekeying is done. This option applies to protocol version 2 only. .It Cm RemoteForward Specifies that a TCP port on the remote machine be forwarded over @@ -1208,9 +1407,7 @@ The default is .Dq no . Note that this option applies to protocol version 2 only. .Pp -See also -.Sx VERIFYING HOST KEYS -in +See also VERIFYING HOST KEYS in .Xr ssh 1 . .It Cm VisualHostKey If this flag is set to @@ -1259,7 +1456,7 @@ Patterns within pattern-lists may be negated by preceding them with an exclamation mark .Pq Sq !\& . For example, -to allow a key to be used from anywhere within an organisation +to allow a key to be used from anywhere within an organization except from the .Dq dialup pool, diff --git a/sshconnect.c b/sshconnect.c index 0ee72663..d21781ea 100644 --- a/sshconnect.c +++ b/sshconnect.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sshconnect.c,v 1.234 2011/05/24 07:15:47 djm Exp $ */ +/* $OpenBSD: sshconnect.c,v 1.244 2014/01/09 23:26:48 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -59,6 +59,7 @@ #include "misc.h" #include "dns.h" #include "roaming.h" +#include "monitor_fdpass.h" #include "ssh2.h" #include "version.h" @@ -78,40 +79,122 @@ extern uid_t original_effective_uid; static int show_other_keys(struct hostkeys *, Key *); static void warn_changed_key(Key *); +/* Expand a proxy command */ +static char * +expand_proxy_command(const char *proxy_command, const char *user, + const char *host, int port) +{ + char *tmp, *ret, strport[NI_MAXSERV]; + + snprintf(strport, sizeof strport, "%d", port); + xasprintf(&tmp, "exec %s", proxy_command); + ret = percent_expand(tmp, "h", host, "p", strport, + "r", options.user, (char *)NULL); + free(tmp); + return ret; +} + +/* + * Connect to the given ssh server using a proxy command that passes a + * a connected fd back to us. + */ +static int +ssh_proxy_fdpass_connect(const char *host, u_short port, + const char *proxy_command) +{ + char *command_string; + int sp[2], sock; + pid_t pid; + char *shell; + + if ((shell = getenv("SHELL")) == NULL) + shell = _PATH_BSHELL; + + if (socketpair(AF_UNIX, SOCK_STREAM, 0, sp) < 0) + fatal("Could not create socketpair to communicate with " + "proxy dialer: %.100s", strerror(errno)); + + command_string = expand_proxy_command(proxy_command, options.user, + host, port); + debug("Executing proxy dialer command: %.500s", command_string); + + /* Fork and execute the proxy command. */ + if ((pid = fork()) == 0) { + char *argv[10]; + + /* Child. Permanently give up superuser privileges. */ + permanently_drop_suid(original_real_uid); + + close(sp[1]); + /* Redirect stdin and stdout. */ + if (sp[0] != 0) { + if (dup2(sp[0], 0) < 0) + perror("dup2 stdin"); + } + if (sp[0] != 1) { + if (dup2(sp[0], 1) < 0) + perror("dup2 stdout"); + } + if (sp[0] >= 2) + close(sp[0]); + + /* + * Stderr is left as it is so that error messages get + * printed on the user's terminal. + */ + argv[0] = shell; + argv[1] = "-c"; + argv[2] = command_string; + argv[3] = NULL; + + /* + * Execute the proxy command. + * Note that we gave up any extra privileges above. + */ + execv(argv[0], argv); + perror(argv[0]); + exit(1); + } + /* Parent. */ + if (pid < 0) + fatal("fork failed: %.100s", strerror(errno)); + close(sp[0]); + free(command_string); + + if ((sock = mm_receive_fd(sp[1])) == -1) + fatal("proxy dialer did not pass back a connection"); + + while (waitpid(pid, NULL, 0) == -1) + if (errno != EINTR) + fatal("Couldn't wait for child: %s", strerror(errno)); + + /* Set the connection file descriptors. */ + packet_set_connection(sock, sock); + + return 0; +} + /* * Connect to the given ssh server using a proxy command. */ static int ssh_proxy_connect(const char *host, u_short port, const char *proxy_command) { - char *command_string, *tmp; + char *command_string; int pin[2], pout[2]; pid_t pid; - char *shell, strport[NI_MAXSERV]; + char *shell; if ((shell = getenv("SHELL")) == NULL || *shell == '\0') shell = _PATH_BSHELL; - /* Convert the port number into a string. */ - snprintf(strport, sizeof strport, "%hu", port); - - /* - * Build the final command string in the buffer by making the - * appropriate substitutions to the given proxy command. - * - * Use "exec" to avoid "sh -c" processes on some platforms - * (e.g. Solaris) - */ - xasprintf(&tmp, "exec %s", proxy_command); - command_string = percent_expand(tmp, "h", host, "p", strport, - "r", options.user, (char *)NULL); - xfree(tmp); - /* Create pipes for communicating with the proxy. */ if (pipe(pin) < 0 || pipe(pout) < 0) fatal("Could not create pipes to communicate with the proxy: %.100s", strerror(errno)); + command_string = expand_proxy_command(proxy_command, options.user, + host, port); debug("Executing proxy command: %.500s", command_string); /* Fork and execute the proxy command. */ @@ -159,12 +242,10 @@ ssh_proxy_connect(const char *host, u_short port, const char *proxy_command) close(pout[1]); /* Free the command name. */ - xfree(command_string); + free(command_string); /* Set the connection file descriptors. */ packet_set_connection(pout[0], pin[1]); - packet_set_timeout(options.server_alive_interval, - options.server_alive_count_max); /* Indicate OK return */ return 0; @@ -187,34 +268,18 @@ ssh_kill_proxy_command(void) static int ssh_create_socket(int privileged, struct addrinfo *ai) { - int sock, gaierr; + int sock, r, gaierr; struct addrinfo hints, *res; - /* - * If we are running as root and want to connect to a privileged - * port, bind our own socket to a privileged port. - */ - if (privileged) { - int p = IPPORT_RESERVED - 1; - PRIV_START; - sock = rresvport_af(&p, ai->ai_family); - PRIV_END; - if (sock < 0) - error("rresvport: af=%d %.100s", ai->ai_family, - strerror(errno)); - else - debug("Allocated local port %d.", p); - return sock; - } sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol); if (sock < 0) { - error("socket: %.100s", strerror(errno)); + error("socket: %s", strerror(errno)); return -1; } fcntl(sock, F_SETFD, FD_CLOEXEC); /* Bind the socket to an alternative local IP address */ - if (options.bind_address == NULL) + if (options.bind_address == NULL && !privileged) return sock; memset(&hints, 0, sizeof(hints)); @@ -229,11 +294,28 @@ ssh_create_socket(int privileged, struct addrinfo *ai) close(sock); return -1; } - if (bind(sock, res->ai_addr, res->ai_addrlen) < 0) { - error("bind: %s: %s", options.bind_address, strerror(errno)); - close(sock); - freeaddrinfo(res); - return -1; + /* + * If we are running as root and want to connect to a privileged + * port, bind our own socket to a privileged port. + */ + if (privileged) { + PRIV_START; + r = bindresvport_sa(sock, res->ai_addr); + PRIV_END; + if (r < 0) { + error("bindresvport_sa: af=%d %s", ai->ai_family, + strerror(errno)); + goto fail; + } + } else { + if (bind(sock, res->ai_addr, res->ai_addrlen) < 0) { + error("bind: %s: %s", options.bind_address, + strerror(errno)); + fail: + close(sock); + freeaddrinfo(res); + return -1; + } } freeaddrinfo(res); return sock; @@ -308,7 +390,7 @@ timeout_connect(int sockfd, const struct sockaddr *serv_addr, fatal("Bogus return (%d) from select()", rc); } - xfree(fdset); + free(fdset); done: if (result == 0 && *timeoutp > 0) { @@ -333,33 +415,18 @@ timeout_connect(int sockfd, const struct sockaddr *serv_addr, * and %p substituted for host and port, respectively) to use to contact * the daemon. */ -int -ssh_connect(const char *host, struct sockaddr_storage * hostaddr, - u_short port, int family, int connection_attempts, int *timeout_ms, - int want_keepalive, int needpriv, const char *proxy_command) +static int +ssh_connect_direct(const char *host, struct addrinfo *aitop, + struct sockaddr_storage *hostaddr, u_short port, int family, + int connection_attempts, int *timeout_ms, int want_keepalive, int needpriv) { - int gaierr; int on = 1; int sock = -1, attempt; char ntop[NI_MAXHOST], strport[NI_MAXSERV]; - struct addrinfo hints, *ai, *aitop; + struct addrinfo *ai; debug2("ssh_connect: needpriv %d", needpriv); - /* If a proxy command is given, connect using it. */ - if (proxy_command != NULL) - return ssh_proxy_connect(host, port, proxy_command); - - /* No proxy command. */ - - memset(&hints, 0, sizeof(hints)); - hints.ai_family = family; - hints.ai_socktype = SOCK_STREAM; - snprintf(strport, sizeof strport, "%u", port); - if ((gaierr = getaddrinfo(host, strport, &hints, &aitop)) != 0) - fatal("%s: Could not resolve hostname %.100s: %s", __progname, - host, ssh_gai_strerror(gaierr)); - for (attempt = 0; attempt < connection_attempts; attempt++) { if (attempt > 0) { /* Sleep a moment before retrying. */ @@ -371,7 +438,8 @@ ssh_connect(const char *host, struct sockaddr_storage * hostaddr, * sequence until the connection succeeds. */ for (ai = aitop; ai; ai = ai->ai_next) { - if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) + if (ai->ai_family != AF_INET && + ai->ai_family != AF_INET6) continue; if (getnameinfo(ai->ai_addr, ai->ai_addrlen, ntop, sizeof(ntop), strport, sizeof(strport), @@ -404,8 +472,6 @@ ssh_connect(const char *host, struct sockaddr_storage * hostaddr, break; /* Successful connection. */ } - freeaddrinfo(aitop); - /* Return failure if we didn't get a successful connection. */ if (sock == -1) { error("ssh: connect to host %s port %s: %s", @@ -423,12 +489,46 @@ ssh_connect(const char *host, struct sockaddr_storage * hostaddr, /* Set the connection. */ packet_set_connection(sock, sock); - packet_set_timeout(options.server_alive_interval, - options.server_alive_count_max); return 0; } +int +ssh_connect(const char *host, struct addrinfo *addrs, + struct sockaddr_storage *hostaddr, u_short port, int family, + int connection_attempts, int *timeout_ms, int want_keepalive, int needpriv) +{ + if (options.proxy_command == NULL) { + return ssh_connect_direct(host, addrs, hostaddr, port, family, + connection_attempts, timeout_ms, want_keepalive, needpriv); + } else if (strcmp(options.proxy_command, "-") == 0) { + packet_set_connection(STDIN_FILENO, STDOUT_FILENO); + return 0; /* Always succeeds */ + } else if (options.proxy_use_fdpass) { + return ssh_proxy_fdpass_connect(host, port, + options.proxy_command); + } + return ssh_proxy_connect(host, port, options.proxy_command); +} + +static void +send_client_banner(int connection_out, int minor1) +{ + /* Send our own protocol version identification. */ + if (compat20) { + xasprintf(&client_version_string, "SSH-%d.%d-%.100s\r\n", + PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_VERSION); + } else { + xasprintf(&client_version_string, "SSH-%d.%d-%.100s\n", + PROTOCOL_MAJOR_1, minor1, SSH_VERSION); + } + if (roaming_atomicio(vwrite, connection_out, client_version_string, + strlen(client_version_string)) != strlen(client_version_string)) + fatal("write: %.100s", strerror(errno)); + chop(client_version_string); + debug("Local version string %.100s", client_version_string); +} + /* * Waits for the server identification string, and sends our own * identification string. @@ -440,7 +540,7 @@ ssh_exchange_identification(int timeout_ms) int remote_major, remote_minor, mismatch; int connection_in = packet_get_connection_in(); int connection_out = packet_get_connection_out(); - int minor1 = PROTOCOL_MINOR_1; + int minor1 = PROTOCOL_MINOR_1, client_banner_sent = 0; u_int i, n; size_t len; int fdsetsz, remaining, rc; @@ -450,6 +550,16 @@ ssh_exchange_identification(int timeout_ms) fdsetsz = howmany(connection_in + 1, NFDBITS) * sizeof(fd_mask); fdset = xcalloc(1, fdsetsz); + /* + * If we are SSH2-only then we can send the banner immediately and + * save a round-trip. + */ + if (options.protocol == SSH_PROTO_2) { + enable_compat20(); + send_client_banner(connection_out, 0); + client_banner_sent = 1; + } + /* Read other side's version identification. */ remaining = timeout_ms; for (n = 0;;) { @@ -499,7 +609,7 @@ ssh_exchange_identification(int timeout_ms) debug("ssh_exchange_identification: %s", buf); } server_version_string = xstrdup(buf); - xfree(fdset); + free(fdset); /* * Check that the versions match. In future this might accept @@ -552,18 +662,15 @@ ssh_exchange_identification(int timeout_ms) fatal("Protocol major versions differ: %d vs. %d", (options.protocol & SSH_PROTO_2) ? PROTOCOL_MAJOR_2 : PROTOCOL_MAJOR_1, remote_major); - /* Send our own protocol version identification. */ - snprintf(buf, sizeof buf, "SSH-%d.%d-%.100s%s", - compat20 ? PROTOCOL_MAJOR_2 : PROTOCOL_MAJOR_1, - compat20 ? PROTOCOL_MINOR_2 : minor1, - SSH_VERSION, compat20 ? "\r\n" : "\n"); - if (roaming_atomicio(vwrite, connection_out, buf, strlen(buf)) - != strlen(buf)) - fatal("write: %.100s", strerror(errno)); - client_version_string = xstrdup(buf); - chop(client_version_string); + if ((datafellows & SSH_BUG_DERIVEKEY) != 0) + fatal("Server version \"%.100s\" uses unsafe key agreement; " + "refusing connection", remote_version); + if ((datafellows & SSH_BUG_RSASIGMD5) != 0) + logit("Server version \"%.100s\" uses unsafe RSA signature " + "scheme; disabling use of RSA keys", remote_version); + if (!client_banner_sent) + send_client_banner(connection_out, minor1); chop(server_version_string); - debug("Local version string %.100s", client_version_string); } /* defaults to 'no' */ @@ -584,8 +691,7 @@ confirm(const char *prompt) ret = 0; if (p && strncasecmp(p, "yes", 3) == 0) ret = 1; - if (p) - xfree(p); + free(p); if (ret != -1) return ret; } @@ -809,8 +915,8 @@ check_host_key(char *hostname, struct sockaddr *hostaddr, u_short port, ra = key_fingerprint(host_key, SSH_FP_MD5, SSH_FP_RANDOMART); logit("Host key fingerprint is %s\n%s\n", fp, ra); - xfree(ra); - xfree(fp); + free(ra); + free(fp); } break; case HOST_NEW: @@ -870,8 +976,8 @@ check_host_key(char *hostname, struct sockaddr *hostaddr, u_short port, options.visual_host_key ? "\n" : "", options.visual_host_key ? ra : "", msg2); - xfree(ra); - xfree(fp); + free(ra); + free(fp); if (!confirm(msg)) goto fail; } @@ -1072,8 +1178,8 @@ check_host_key(char *hostname, struct sockaddr *hostaddr, u_short port, } } - xfree(ip); - xfree(host); + free(ip); + free(host); if (host_hostkeys != NULL) free_hostkeys(host_hostkeys); if (ip_hostkeys != NULL) @@ -1095,8 +1201,8 @@ fail: } if (raw_key != NULL) key_free(raw_key); - xfree(ip); - xfree(host); + free(ip); + free(host); if (host_hostkeys != NULL) free_hostkeys(host_hostkeys); if (ip_hostkeys != NULL) @@ -1113,7 +1219,7 @@ verify_host_key(char *host, struct sockaddr *hostaddr, Key *host_key) fp = key_fingerprint(host_key, SSH_FP_MD5, SSH_FP_HEX); debug("Server host key: %s %s", key_type(host_key), fp); - xfree(fp); + free(fp); /* XXX certs are not yet supported for DNS */ if (!key_is_cert(host_key) && options.verify_host_key_dns && @@ -1151,7 +1257,7 @@ void ssh_login(Sensitive *sensitive, const char *orighost, struct sockaddr *hostaddr, u_short port, struct passwd *pw, int timeout_ms) { - char *host, *cp; + char *host; char *server_user, *local_user; local_user = xstrdup(pw->pw_name); @@ -1159,9 +1265,7 @@ ssh_login(Sensitive *sensitive, const char *orighost, /* Convert the user-supplied hostname into all lowercase. */ host = xstrdup(orighost); - for (cp = host; *cp; cp++) - if (isupper(*cp)) - *cp = (char)tolower(*cp); + lowercase(host); /* Exchange protocol version identification strings with the server. */ ssh_exchange_identification(timeout_ms); @@ -1178,7 +1282,7 @@ ssh_login(Sensitive *sensitive, const char *orighost, ssh_kex(host, hostaddr); ssh_userauth1(local_user, server_user, host, sensitive); } - xfree(local_user); + free(local_user); } void @@ -1196,14 +1300,21 @@ ssh_put_password(char *password) strlcpy(padded, password, size); packet_put_string(padded, size); memset(padded, 0, size); - xfree(padded); + free(padded); } /* print all known host keys for a given host, but skip keys of given type */ static int show_other_keys(struct hostkeys *hostkeys, Key *key) { - int type[] = { KEY_RSA1, KEY_RSA, KEY_DSA, KEY_ECDSA, -1}; + int type[] = { + KEY_RSA1, + KEY_RSA, + KEY_DSA, + KEY_ECDSA, + KEY_ED25519, + -1 + }; int i, ret = 0; char *fp, *ra; const struct hostkey_entry *found; @@ -1223,8 +1334,8 @@ show_other_keys(struct hostkeys *hostkeys, Key *key) key_type(found->key), fp); if (options.visual_host_key) logit("%s", ra); - xfree(ra); - xfree(fp); + free(ra); + free(fp); ret = 1; } return ret; @@ -1247,7 +1358,7 @@ warn_changed_key(Key *host_key) key_type(host_key), fp); error("Please contact your system administrator."); - xfree(fp); + free(fp); } /* diff --git a/sshconnect.h b/sshconnect.h index fd7f7f7c..0ea6e99f 100644 --- a/sshconnect.h +++ b/sshconnect.h @@ -1,4 +1,4 @@ -/* $OpenBSD: sshconnect.h,v 1.27 2010/11/29 23:45:51 djm Exp $ */ +/* $OpenBSD: sshconnect.h,v 1.28 2013/10/16 02:31:47 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. @@ -31,9 +31,9 @@ struct Sensitive { int external_keysign; }; -int -ssh_connect(const char *, struct sockaddr_storage *, u_short, int, int, - int *, int, int, const char *); +struct addrinfo; +int ssh_connect(const char *, struct addrinfo *, struct sockaddr_storage *, + u_short, int, int, int *, int, int); void ssh_kill_proxy_command(void); void ssh_login(Sensitive *, const char *, struct sockaddr *, u_short, diff --git a/sshconnect1.c b/sshconnect1.c index fd07bbf7..7bd6cb01 100644 --- a/sshconnect1.c +++ b/sshconnect1.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sshconnect1.c,v 1.70 2006/11/06 21:25:28 markus Exp $ */ +/* $OpenBSD: sshconnect1.c,v 1.72 2013/09/02 22:00:34 deraadt Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -84,7 +84,7 @@ try_agent_authentication(void) /* Try this identity. */ debug("Trying RSA authentication via agent with '%.100s'", comment); - xfree(comment); + free(comment); /* Tell the server that we are willing to authenticate using this key. */ packet_start(SSH_CMSG_AUTH_RSA); @@ -231,7 +231,7 @@ try_rsa_authentication(int idx) */ if (type == SSH_SMSG_FAILURE) { debug("Server refused our key."); - xfree(comment); + free(comment); return 0; } /* Otherwise, the server should respond with a challenge. */ @@ -270,14 +270,14 @@ try_rsa_authentication(int idx) quit = 1; } memset(passphrase, 0, strlen(passphrase)); - xfree(passphrase); + free(passphrase); if (private != NULL || quit) break; debug2("bad passphrase given, try again..."); } } /* We no longer need the comment. */ - xfree(comment); + free(comment); if (private == NULL) { if (!options.batch_mode && perm_ok) @@ -412,7 +412,7 @@ try_challenge_response_authentication(void) packet_check_eom(); snprintf(prompt, sizeof prompt, "%s%s", challenge, strchr(challenge, '\n') ? "" : "\nResponse: "); - xfree(challenge); + free(challenge); if (i != 0) error("Permission denied, please try again."); if (options.cipher == SSH_CIPHER_NONE) @@ -420,13 +420,13 @@ try_challenge_response_authentication(void) "Response will be transmitted in clear text."); response = read_passphrase(prompt, 0); if (strcmp(response, "") == 0) { - xfree(response); + free(response); break; } packet_start(SSH_CMSG_AUTH_TIS_RESPONSE); ssh_put_password(response); memset(response, 0, strlen(response)); - xfree(response); + free(response); packet_send(); packet_write_wait(); type = packet_read(); @@ -459,7 +459,7 @@ try_password_authentication(char *prompt) packet_start(SSH_CMSG_AUTH_PASSWORD); ssh_put_password(password); memset(password, 0, strlen(password)); - xfree(password); + free(password); packet_send(); packet_write_wait(); @@ -542,9 +542,6 @@ ssh_kex(char *host, struct sockaddr *hostaddr) derive_ssh1_session_id(host_key->rsa->n, server_key->rsa->n, cookie, session_id); - /* Generate a session key. */ - arc4random_stir(); - /* * Generate an encryption key for the session. The key is a 256 bit * random number, interpreted as a 32-byte key, with the least diff --git a/sshconnect2.c b/sshconnect2.c index c24b2027..8acffc5c 100644 --- a/sshconnect2.c +++ b/sshconnect2.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sshconnect2.c,v 1.188 2011/05/24 07:15:47 djm Exp $ */ +/* $OpenBSD: sshconnect2.c,v 1.201 2014/01/09 23:20:00 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * Copyright (c) 2008 Damien Miller. All rights reserved. @@ -40,7 +40,7 @@ #include <stdio.h> #include <string.h> #include <unistd.h> -#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) +#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) && !defined(BROKEN_STRNVIS) #include <vis.h> #endif @@ -146,10 +146,10 @@ order_hostkeyalgs(char *host, struct sockaddr *hostaddr, u_short port) if (*first != '\0') debug3("%s: prefer hostkeyalgs: %s", __func__, first); - xfree(first); - xfree(last); - xfree(hostname); - xfree(oavail); + free(first); + free(last); + free(hostname); + free(oavail); free_hostkeys(hostkeys); return ret; @@ -188,17 +188,19 @@ ssh_kex2(char *host, struct sockaddr *hostaddr, u_short port) } if (options.hostkeyalgorithms != NULL) myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS] = - options.hostkeyalgorithms; + compat_pkalg_proposal(options.hostkeyalgorithms); else { /* Prefer algorithms that we already have keys for */ myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS] = - order_hostkeyalgs(host, hostaddr, port); + compat_pkalg_proposal( + order_hostkeyalgs(host, hostaddr, port)); } if (options.kex_algorithms != NULL) myproposal[PROPOSAL_KEX_ALGS] = options.kex_algorithms; - if (options.rekey_limit) - packet_set_rekey_limit((u_int32_t)options.rekey_limit); + if (options.rekey_limit || options.rekey_interval) + packet_set_rekey_limits((u_int32_t)options.rekey_limit, + (time_t)options.rekey_interval); /* start key exchange */ kex = kex_setup(myproposal); @@ -207,6 +209,7 @@ ssh_kex2(char *host, struct sockaddr *hostaddr, u_short port) kex->kex[KEX_DH_GEX_SHA1] = kexgex_client; kex->kex[KEX_DH_GEX_SHA256] = kexgex_client; kex->kex[KEX_ECDH_SHA2] = kexecdh_client; + kex->kex[KEX_C25519_SHA256] = kexc25519_client; kex->client_version_string=client_version_string; kex->server_version_string=server_version_string; kex->verify_host_key=&verify_host_key_callback; @@ -248,6 +251,7 @@ struct identity { char *filename; /* comment for agent-only keys */ int tried; int isprivate; /* key points to the private key */ + int userprovided; }; TAILQ_HEAD(idlist, identity); @@ -312,7 +316,7 @@ void userauth(Authctxt *, char *); static int sign_and_send_pubkey(Authctxt *, Identity *); static void pubkey_prepare(Authctxt *); static void pubkey_cleanup(Authctxt *); -static Key *load_identity_file(char *); +static Key *load_identity_file(char *, int); static Authmethod *authmethod_get(char *authlist); static Authmethod *authmethod_lookup(const char *name); @@ -382,7 +386,7 @@ ssh_userauth2(const char *local_user, const char *server_user, char *host, if (packet_remaining() > 0) { char *reply = packet_get_string(NULL); debug2("service_accept: %s", reply); - xfree(reply); + free(reply); } else { debug2("buggy server: service_accept w/o service"); } @@ -429,15 +433,12 @@ userauth(Authctxt *authctxt, char *authlist) if (authctxt->method != NULL && authctxt->method->cleanup != NULL) authctxt->method->cleanup(authctxt); - if (authctxt->methoddata) { - xfree(authctxt->methoddata); - authctxt->methoddata = NULL; - } + free(authctxt->methoddata); + authctxt->methoddata = NULL; if (authlist == NULL) { authlist = authctxt->authlist; } else { - if (authctxt->authlist) - xfree(authctxt->authlist); + free(authctxt->authlist); authctxt->authlist = authlist; } for (;;) { @@ -485,10 +486,10 @@ input_userauth_banner(int type, u_int32_t seq, void *ctxt) msg = xmalloc(len * 4 + 1); /* max expansion from strnvis() */ strnvis(msg, raw, len * 4 + 1, VIS_SAFE|VIS_OCTAL|VIS_NOSLASH); fprintf(stderr, "%s", msg); - xfree(msg); + free(msg); } - xfree(raw); - xfree(lang); + free(raw); + free(lang); } /* ARGSUSED */ @@ -499,16 +500,12 @@ input_userauth_success(int type, u_int32_t seq, void *ctxt) if (authctxt == NULL) fatal("input_userauth_success: no authentication context"); - if (authctxt->authlist) { - xfree(authctxt->authlist); - authctxt->authlist = NULL; - } + free(authctxt->authlist); + authctxt->authlist = NULL; if (authctxt->method != NULL && authctxt->method->cleanup != NULL) authctxt->method->cleanup(authctxt); - if (authctxt->methoddata) { - xfree(authctxt->methoddata); - authctxt->methoddata = NULL; - } + free(authctxt->methoddata); + authctxt->methoddata = NULL; authctxt->success = 1; /* break out */ } @@ -539,8 +536,12 @@ input_userauth_failure(int type, u_int32_t seq, void *ctxt) partial = packet_get_char(); packet_check_eom(); - if (partial != 0) + if (partial != 0) { logit("Authenticated with partial success."); + /* reset state */ + pubkey_cleanup(authctxt); + pubkey_prepare(authctxt); + } debug("Authentications that can continue: %s", authlist); userauth(authctxt, authlist); @@ -593,7 +594,7 @@ input_userauth_pk_ok(int type, u_int32_t seq, void *ctxt) } fp = key_fingerprint(key, SSH_FP_MD5, SSH_FP_HEX); debug2("input_userauth_pk_ok: fp %s", fp); - xfree(fp); + free(fp); /* * search keys in the reverse order, because last candidate has been @@ -609,8 +610,8 @@ input_userauth_pk_ok(int type, u_int32_t seq, void *ctxt) done: if (key != NULL) key_free(key); - xfree(pkalg); - xfree(pkblob); + free(pkalg); + free(pkblob); /* try another method if we did not send a packet */ if (sent == 0) @@ -748,7 +749,7 @@ input_gssapi_response(int type, u_int32_t plen, void *ctxt) if (oidlen <= 2 || oidv[0] != SSH_GSS_OIDTYPE || oidv[1] != oidlen - 2) { - xfree(oidv); + free(oidv); debug("Badly encoded mechanism OID received"); userauth(authctxt, NULL); return; @@ -759,7 +760,7 @@ input_gssapi_response(int type, u_int32_t plen, void *ctxt) packet_check_eom(); - xfree(oidv); + free(oidv); if (GSS_ERROR(process_gssapi_token(ctxt, GSS_C_NO_BUFFER))) { /* Start again with next method on list */ @@ -788,7 +789,7 @@ input_gssapi_token(int type, u_int32_t plen, void *ctxt) status = process_gssapi_token(ctxt, &recv_tok); - xfree(recv_tok.value); + free(recv_tok.value); if (GSS_ERROR(status)) { /* Start again with the next method in the list */ @@ -805,7 +806,7 @@ input_gssapi_errtok(int type, u_int32_t plen, void *ctxt) Gssctxt *gssctxt; gss_buffer_desc send_tok = GSS_C_EMPTY_BUFFER; gss_buffer_desc recv_tok; - OM_uint32 status, ms; + OM_uint32 ms; u_int len; if (authctxt == NULL) @@ -818,10 +819,10 @@ input_gssapi_errtok(int type, u_int32_t plen, void *ctxt) packet_check_eom(); /* Stick it into GSSAPI and see what it says */ - status = ssh_gssapi_init_ctx(gssctxt, options.gss_deleg_creds, + (void)ssh_gssapi_init_ctx(gssctxt, options.gss_deleg_creds, &recv_tok, &send_tok, NULL); - xfree(recv_tok.value); + free(recv_tok.value); gss_release_buffer(&ms, &send_tok); /* Server will be returning a failed packet after this one */ @@ -831,20 +832,19 @@ input_gssapi_errtok(int type, u_int32_t plen, void *ctxt) void input_gssapi_error(int type, u_int32_t plen, void *ctxt) { - OM_uint32 maj, min; char *msg; char *lang; - maj=packet_get_int(); - min=packet_get_int(); + /* maj */(void)packet_get_int(); + /* min */(void)packet_get_int(); msg=packet_get_string(NULL); lang=packet_get_string(NULL); packet_check_eom(); debug("Server GSSAPI Error:\n%s", msg); - xfree(msg); - xfree(lang); + free(msg); + free(lang); } #endif /* GSSAPI */ @@ -885,7 +885,7 @@ userauth_passwd(Authctxt *authctxt) packet_put_char(0); packet_put_cstring(password); memset(password, 0, strlen(password)); - xfree(password); + free(password); packet_add_padding(64); packet_send(); @@ -918,8 +918,8 @@ input_userauth_passwd_changereq(int type, u_int32_t seqnr, void *ctxt) lang = packet_get_string(NULL); if (strlen(info) > 0) logit("%s", info); - xfree(info); - xfree(lang); + free(info); + free(lang); packet_start(SSH2_MSG_USERAUTH_REQUEST); packet_put_cstring(authctxt->server_user); packet_put_cstring(authctxt->service); @@ -931,7 +931,7 @@ input_userauth_passwd_changereq(int type, u_int32_t seqnr, void *ctxt) password = read_passphrase(prompt, 0); packet_put_cstring(password); memset(password, 0, strlen(password)); - xfree(password); + free(password); password = NULL; while (password == NULL) { snprintf(prompt, sizeof(prompt), @@ -948,16 +948,16 @@ input_userauth_passwd_changereq(int type, u_int32_t seqnr, void *ctxt) retype = read_passphrase(prompt, 0); if (strcmp(password, retype) != 0) { memset(password, 0, strlen(password)); - xfree(password); + free(password); logit("Mismatch; try again, EOF to quit."); password = NULL; } memset(retype, 0, strlen(retype)); - xfree(retype); + free(retype); } packet_put_cstring(password); memset(password, 0, strlen(password)); - xfree(password); + free(password); packet_add_padding(64); packet_send(); @@ -1006,19 +1006,19 @@ jpake_password_to_secret(Authctxt *authctxt, const char *crypt_scheme, debug3("%s: crypted = %s", __func__, crypted); #endif - if (hash_buffer(crypted, strlen(crypted), EVP_sha256(), + if (hash_buffer(crypted, strlen(crypted), SSH_DIGEST_SHA1, &secret, &secret_len) != 0) fatal("%s: hash_buffer", __func__); bzero(password, strlen(password)); bzero(crypted, strlen(crypted)); - xfree(password); - xfree(crypted); + free(password); + free(crypted); if ((ret = BN_bin2bn(secret, secret_len, NULL)) == NULL) fatal("%s: BN_bin2bn (secret)", __func__); bzero(secret, secret_len); - xfree(secret); + free(secret); return ret; } @@ -1056,8 +1056,8 @@ input_userauth_jpake_server_step1(int type, u_int32_t seq, void *ctxt) pctx->s = jpake_password_to_secret(authctxt, crypt_scheme, salt); bzero(crypt_scheme, strlen(crypt_scheme)); bzero(salt, strlen(salt)); - xfree(crypt_scheme); - xfree(salt); + free(crypt_scheme); + free(salt); JPAKE_DEBUG_BN((pctx->s, "%s: s = ", __func__)); /* Calculate step 2 values */ @@ -1072,8 +1072,8 @@ input_userauth_jpake_server_step1(int type, u_int32_t seq, void *ctxt) bzero(x3_proof, x3_proof_len); bzero(x4_proof, x4_proof_len); - xfree(x3_proof); - xfree(x4_proof); + free(x3_proof); + free(x4_proof); JPAKE_DEBUG_CTX((pctx, "step 2 sending in %s", __func__)); @@ -1084,7 +1084,7 @@ input_userauth_jpake_server_step1(int type, u_int32_t seq, void *ctxt) packet_send(); bzero(x2_s_proof, x2_s_proof_len); - xfree(x2_s_proof); + free(x2_s_proof); /* Expect step 2 packet from peer */ dispatch_set(SSH2_MSG_USERAUTH_JPAKE_SERVER_STEP2, @@ -1124,7 +1124,7 @@ input_userauth_jpake_server_step2(int type, u_int32_t seq, void *ctxt) &pctx->h_k_cid_sessid, &pctx->h_k_cid_sessid_len); bzero(x4_s_proof, x4_s_proof_len); - xfree(x4_s_proof); + free(x4_s_proof); JPAKE_DEBUG_CTX((pctx, "confirm sending in %s", __func__)); @@ -1186,7 +1186,7 @@ identity_sign(Identity *id, u_char **sigp, u_int *lenp, if (id->isprivate || (id->key->flags & KEY_FLAG_EXT)) return (key_sign(id->key, sigp, lenp, data, datalen)); /* load the private key from the file */ - if ((prv = load_identity_file(id->filename)) == NULL) + if ((prv = load_identity_file(id->filename, id->userprovided)) == NULL) return (-1); ret = key_sign(prv, sigp, lenp, data, datalen); key_free(prv); @@ -1206,7 +1206,7 @@ sign_and_send_pubkey(Authctxt *authctxt, Identity *id) fp = key_fingerprint(id->key, SSH_FP_MD5, SSH_FP_HEX); debug3("sign_and_send_pubkey: %s %s", key_type(id->key), fp); - xfree(fp); + free(fp); if (key_to_blob(id->key, &blob, &bloblen) == 0) { /* we cannot handle this key */ @@ -1241,7 +1241,7 @@ sign_and_send_pubkey(Authctxt *authctxt, Identity *id) ret = identity_sign(id, &signature, &slen, buffer_ptr(&b), buffer_len(&b)); if (ret == -1) { - xfree(blob); + free(blob); buffer_free(&b); return 0; } @@ -1261,11 +1261,11 @@ sign_and_send_pubkey(Authctxt *authctxt, Identity *id) buffer_put_cstring(&b, key_ssh_name(id->key)); buffer_put_string(&b, blob, bloblen); } - xfree(blob); + free(blob); /* append signature */ buffer_put_string(&b, signature, slen); - xfree(signature); + free(signature); /* skip session id and packet type */ if (buffer_len(&b) < skip + 1) @@ -1305,13 +1305,13 @@ send_pubkey_test(Authctxt *authctxt, Identity *id) if (!(datafellows & SSH_BUG_PKAUTH)) packet_put_cstring(key_ssh_name(id->key)); packet_put_string(blob, bloblen); - xfree(blob); + free(blob); packet_send(); return 1; } static Key * -load_identity_file(char *filename) +load_identity_file(char *filename, int userprovided) { Key *private; char prompt[300], *passphrase; @@ -1319,12 +1319,16 @@ load_identity_file(char *filename) struct stat st; if (stat(filename, &st) < 0) { - debug3("no such identity: %s", filename); + (userprovided ? logit : debug3)("no such identity: %s: %s", + filename, strerror(errno)); return NULL; } private = key_load_private_type(KEY_UNSPEC, filename, "", NULL, &perm_ok); - if (!perm_ok) + if (!perm_ok) { + if (private != NULL) + key_free(private); return NULL; + } if (private == NULL) { if (options.batch_mode) return NULL; @@ -1341,7 +1345,7 @@ load_identity_file(char *filename) quit = 1; } memset(passphrase, 0, strlen(passphrase)); - xfree(passphrase); + free(passphrase); if (private != NULL || quit) break; debug2("bad passphrase given, try again..."); @@ -1359,7 +1363,7 @@ load_identity_file(char *filename) static void pubkey_prepare(Authctxt *authctxt) { - Identity *id; + Identity *id, *id2, *tmp; Idlist agent, files, *preferred; Key *key; AuthenticationConnection *ac; @@ -1371,7 +1375,7 @@ pubkey_prepare(Authctxt *authctxt) preferred = &authctxt->keys; TAILQ_INIT(preferred); /* preferred order of keys */ - /* list of keys stored in the filesystem */ + /* list of keys stored in the filesystem and PKCS#11 */ for (i = 0; i < options.num_identity_files; i++) { key = options.identity_keys[i]; if (key && key->type == KEY_RSA1) @@ -1382,8 +1386,32 @@ pubkey_prepare(Authctxt *authctxt) id = xcalloc(1, sizeof(*id)); id->key = key; id->filename = xstrdup(options.identity_files[i]); + id->userprovided = options.identity_file_userprovided[i]; TAILQ_INSERT_TAIL(&files, id, next); } + /* Prefer PKCS11 keys that are explicitly listed */ + TAILQ_FOREACH_SAFE(id, &files, next, tmp) { + if (id->key == NULL || (id->key->flags & KEY_FLAG_EXT) == 0) + continue; + found = 0; + TAILQ_FOREACH(id2, &files, next) { + if (id2->key == NULL || + (id2->key->flags & KEY_FLAG_EXT) != 0) + continue; + if (key_equal(id->key, id2->key)) { + TAILQ_REMOVE(&files, id, next); + TAILQ_INSERT_TAIL(preferred, id, next); + found = 1; + break; + } + } + /* If IdentitiesOnly set and key not found then don't use it */ + if (!found && options.identities_only) { + TAILQ_REMOVE(&files, id, next); + bzero(id, sizeof(*id)); + free(id); + } + } /* list of keys supported by the agent */ if ((ac = ssh_get_authentication_connection())) { for (key = ssh_get_first_identity(ac, &comment, 2); @@ -1394,7 +1422,7 @@ pubkey_prepare(Authctxt *authctxt) /* agent keys from the config file are preferred */ if (key_equal(key, id->key)) { key_free(key); - xfree(comment); + free(comment); TAILQ_REMOVE(&files, id, next); TAILQ_INSERT_TAIL(preferred, id, next); id->ac = ac; @@ -1423,7 +1451,8 @@ pubkey_prepare(Authctxt *authctxt) TAILQ_INSERT_TAIL(preferred, id, next); } TAILQ_FOREACH(id, preferred, next) { - debug2("key: %s (%p)", id->filename, id->key); + debug2("key: %s (%p),%s", id->filename, id->key, + id->userprovided ? " explicit" : ""); } } @@ -1439,9 +1468,8 @@ pubkey_cleanup(Authctxt *authctxt) TAILQ_REMOVE(&authctxt->keys, id, next); if (id->key) key_free(id->key); - if (id->filename) - xfree(id->filename); - xfree(id); + free(id->filename); + free(id); } } @@ -1462,16 +1490,31 @@ userauth_pubkey(Authctxt *authctxt) * encrypted keys we cannot do this and have to load the * private key instead */ - if (id->key && id->key->type != KEY_RSA1) { - debug("Offering %s public key: %s", key_type(id->key), - id->filename); - sent = send_pubkey_test(authctxt, id); - } else if (id->key == NULL) { + if (id->key != NULL) { + if (key_type_plain(id->key->type) == KEY_RSA && + (datafellows & SSH_BUG_RSASIGMD5) != 0) { + debug("Skipped %s key %s for RSA/MD5 server", + key_type(id->key), id->filename); + } else if (id->key->type != KEY_RSA1) { + debug("Offering %s public key: %s", + key_type(id->key), id->filename); + sent = send_pubkey_test(authctxt, id); + } + } else { debug("Trying private key: %s", id->filename); - id->key = load_identity_file(id->filename); + id->key = load_identity_file(id->filename, + id->userprovided); if (id->key != NULL) { id->isprivate = 1; - sent = sign_and_send_pubkey(authctxt, id); + if (key_type_plain(id->key->type) == KEY_RSA && + (datafellows & SSH_BUG_RSASIGMD5) != 0) { + debug("Skipped %s key %s for RSA/MD5 " + "server", key_type(id->key), + id->filename); + } else { + sent = sign_and_send_pubkey( + authctxt, id); + } key_free(id->key); id->key = NULL; } @@ -1538,9 +1581,9 @@ input_userauth_info_req(int type, u_int32_t seq, void *ctxt) logit("%s", name); if (strlen(inst) > 0) logit("%s", inst); - xfree(name); - xfree(inst); - xfree(lang); + free(name); + free(inst); + free(lang); num_prompts = packet_get_int(); /* @@ -1561,8 +1604,8 @@ input_userauth_info_req(int type, u_int32_t seq, void *ctxt) packet_put_cstring(response); memset(response, 0, strlen(response)); - xfree(response); - xfree(prompt); + free(response); + free(prompt); } packet_check_eom(); /* done with parsing incoming message. */ @@ -1682,12 +1725,12 @@ userauth_hostbased(Authctxt *authctxt) if (p == NULL) { error("userauth_hostbased: cannot get local ipaddr/name"); key_free(private); - xfree(blob); + free(blob); return 0; } xasprintf(&chost, "%s.", p); debug2("userauth_hostbased: chost %s", chost); - xfree(p); + free(p); service = datafellows & SSH_BUG_HBSERVICE ? "ssh-userauth" : authctxt->service; @@ -1716,9 +1759,9 @@ userauth_hostbased(Authctxt *authctxt) buffer_free(&b); if (ok != 0) { error("key_sign failed"); - xfree(chost); - xfree(pkalg); - xfree(blob); + free(chost); + free(pkalg); + free(blob); return 0; } packet_start(SSH2_MSG_USERAUTH_REQUEST); @@ -1731,10 +1774,10 @@ userauth_hostbased(Authctxt *authctxt) packet_put_cstring(authctxt->local_user); packet_put_string(signature, slen); memset(signature, 's', slen); - xfree(signature); - xfree(chost); - xfree(pkalg); - xfree(blob); + free(signature); + free(chost); + free(pkalg); + free(blob); packet_send(); return 1; @@ -1789,8 +1832,8 @@ userauth_jpake(Authctxt *authctxt) bzero(x1_proof, x1_proof_len); bzero(x2_proof, x2_proof_len); - xfree(x1_proof); - xfree(x2_proof); + free(x1_proof); + free(x2_proof); /* Expect step 1 packet from peer */ dispatch_set(SSH2_MSG_USERAUTH_JPAKE_SERVER_STEP1, @@ -1867,8 +1910,7 @@ authmethod_get(char *authlist) if (supported == NULL || strcmp(authlist, supported) != 0) { debug3("start over, passed a different list %s", authlist); - if (supported != NULL) - xfree(supported); + free(supported); supported = xstrdup(authlist); preferred = options.preferred_authentications; debug3("preferred %s", preferred); @@ -1889,12 +1931,11 @@ authmethod_get(char *authlist) authmethod_is_enabled(current)) { debug3("authmethod_is_enabled %s", name); debug("Next authentication method: %s", name); - xfree(name); + free(name); return current; } + free(name); } - if (name != NULL) - xfree(name); } static char * @@ -33,8 +33,8 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.\" $OpenBSD: sshd.8,v 1.264 2011/09/23 00:22:04 dtucker Exp $ -.Dd $Mdocdate: September 23 2011 $ +.\" $OpenBSD: sshd.8,v 1.273 2013/12/07 11:58:46 naddy Exp $ +.Dd $Mdocdate: December 7 2013 $ .Dt SSHD 8 .Os .Sh NAME @@ -47,6 +47,7 @@ .Op Fl b Ar bits .Op Fl C Ar connection_spec .Op Fl c Ar host_certificate_file +.Op Fl E Ar log_file .Op Fl f Ar config_file .Op Fl g Ar login_grace_time .Op Fl h Ar host_key_file @@ -114,6 +115,8 @@ The connection parameters are supplied as keyword=value pairs. The keywords are .Dq user , .Dq host , +.Dq laddr , +.Dq lport , and .Dq addr . All are required and may be supplied in any order, either with multiple @@ -144,10 +147,12 @@ Multiple .Fl d options increase the debugging level. Maximum is 3. +.It Fl E Ar log_file +Append debug logs to +.Ar log_file +instead of the system log. .It Fl e -When this option is specified, -.Nm -will send the output to the standard error instead of the system log. +Write debug logs to standard error instead of the system log. .It Fl f Ar config_file Specifies the name of the configuration file. The default is @@ -170,7 +175,8 @@ The default is .Pa /etc/ssh/ssh_host_key for protocol version 1, and .Pa /etc/ssh/ssh_host_dsa_key , -.Pa /etc/ssh/ssh_host_ecdsa_key +.Pa /etc/ssh/ssh_host_ecdsa_key . +.Pa /etc/ssh/ssh_host_ed25519_key and .Pa /etc/ssh/ssh_host_rsa_key for protocol version 2. @@ -275,7 +281,7 @@ though this can be changed via the .Cm Protocol option in .Xr sshd_config 5 . -Protocol 2 supports DSA, ECDSA and RSA keys; +Protocol 2 supports DSA, ECDSA, ED25519 and RSA keys; protocol 1 only supports RSA keys. For both protocols, each host has a host-specific key, @@ -314,7 +320,7 @@ The client selects the encryption algorithm to use from those offered by the server. Additionally, session integrity is provided through a cryptographic message authentication code -(hmac-md5, hmac-sha1, umac-64, hmac-ripemd160, +(hmac-md5, hmac-sha1, umac-64, umac-128, hmac-ripemd160, hmac-sha2-256 or hmac-sha2-512). .Pp Finally, the server and the client enter an authentication dialog. @@ -489,6 +495,7 @@ For protocol version 2 the keytype is .Dq ecdsa-sha2-nistp256 , .Dq ecdsa-sha2-nistp384 , .Dq ecdsa-sha2-nistp521 , +.Dq ssh-ed25519 , .Dq ssh-dss or .Dq ssh-rsa . @@ -501,6 +508,7 @@ You don't want to type them in; instead, copy the .Pa identity.pub , .Pa id_dsa.pub , .Pa id_ecdsa.pub , +.Pa id_ed25519.pub , or the .Pa id_rsa.pub file and edit it. @@ -562,9 +570,7 @@ is enabled. Specifies that in addition to public key authentication, either the canonical name of the remote host or its IP address must be present in the comma-separated list of patterns. -See -.Sx PATTERNS -in +See PATTERNS in .Xr ssh_config 5 for more information on patterns. .Pp @@ -802,8 +808,8 @@ secret, but the recommended permissions are read/write/execute for the user, and not accessible by others. .Pp .It Pa ~/.ssh/authorized_keys -Lists the public keys (DSA/ECDSA/RSA) that can be used for logging in -as this user. +Lists the public keys (DSA, ECDSA, ED25519, RSA) +that can be used for logging in as this user. The format of this file is described above. The content of the file is not highly sensitive, but the recommended permissions are read/write for the user, and not accessible by others. @@ -883,8 +889,9 @@ rlogin/rsh. .It Pa /etc/ssh/ssh_host_key .It Pa /etc/ssh/ssh_host_dsa_key .It Pa /etc/ssh/ssh_host_ecdsa_key +.It Pa /etc/ssh/ssh_host_ed25519_key .It Pa /etc/ssh/ssh_host_rsa_key -These three files contain the private parts of the host keys. +These files contain the private parts of the host keys. These files should only be owned by root, readable only by root, and not accessible to others. Note that @@ -894,8 +901,9 @@ does not start if these files are group/world-accessible. .It Pa /etc/ssh/ssh_host_key.pub .It Pa /etc/ssh/ssh_host_dsa_key.pub .It Pa /etc/ssh/ssh_host_ecdsa_key.pub +.It Pa /etc/ssh/ssh_host_ed25519_key.pub .It Pa /etc/ssh/ssh_host_rsa_key.pub -These three files contain the public parts of the host keys. +These files contain the public parts of the host keys. These files should be world-readable but writable only by root. Their contents should match the respective private parts. @@ -1,4 +1,4 @@ -/* $OpenBSD: sshd.c,v 1.388 2011/09/30 21:22:49 djm Exp $ */ +/* $OpenBSD: sshd.c,v 1.414 2014/01/09 23:26:48 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -106,6 +106,7 @@ #include "canohost.h" #include "hostfile.h" #include "auth.h" +#include "authfd.h" #include "misc.h" #include "msg.h" #include "dispatch.h" @@ -194,6 +195,10 @@ char *server_version_string = NULL; /* for rekeying XXX fixme */ Kex *xxx_kex; +/* Daemon's agent connection */ +AuthenticationConnection *auth_conn = NULL; +int have_agent = 0; + /* * Any really sensitive data in the application is contained in this * structure. The idea is that this structure could be locked into memory so @@ -206,6 +211,7 @@ struct { Key *server_key; /* ephemeral server key */ Key *ssh1_host_key; /* ssh1 host key */ Key **host_keys; /* all private host keys */ + Key **host_pubkeys; /* all public host keys */ Key **host_certificates; /* all public host certificates */ int have_ssh1_key; int have_ssh2_key; @@ -309,6 +315,7 @@ static void sighup_restart(void) { logit("Received SIGHUP; restarting."); + platform_pre_restart(); close_listen_socks(); close_startup_pipes(); alarm(0); /* alarm timer persists across exec */ @@ -359,6 +366,15 @@ grace_alarm_handler(int sig) if (use_privsep && pmonitor != NULL && pmonitor->m_pid > 0) kill(pmonitor->m_pid, SIGALRM); + /* + * Try to kill any processes that we have spawned, E.g. authorized + * keys command helpers. + */ + if (getpgid(0) == getpid()) { + signal(SIGTERM, SIG_IGN); + kill(0, SIGTERM); + } + /* Log error and exit. */ sigdie("Timeout before authentication for %s", get_remote_ipaddr()); } @@ -382,7 +398,6 @@ generate_ephemeral_server_key(void) verbose("RSA key generation complete."); arc4random_buf(sensitive_data.ssh1_cookie, SSH_SESSION_KEY_LENGTH); - arc4random_stir(); } /*ARGSUSED*/ @@ -419,9 +434,11 @@ sshd_exchange_identification(int sock_in, int sock_out) major = PROTOCOL_MAJOR_1; minor = PROTOCOL_MINOR_1; } - snprintf(buf, sizeof buf, "SSH-%d.%d-%.100s%s", major, minor, - SSH_VERSION, newline); - server_version_string = xstrdup(buf); + + xasprintf(&server_version_string, "SSH-%d.%d-%.100s%s%s%s", + major, minor, SSH_VERSION, + *options.version_addendum == '\0' ? "" : " ", + options.version_addendum, newline); /* Send our protocol version identification. */ if (roaming_atomicio(vwrite, sock_out, server_version_string, @@ -463,10 +480,11 @@ sshd_exchange_identification(int sock_in, int sock_out) &remote_major, &remote_minor, remote_version) != 3) { s = "Protocol mismatch.\n"; (void) atomicio(vwrite, sock_out, s, strlen(s)); + logit("Bad protocol version identification '%.100s' " + "from %s port %d", client_version_string, + get_remote_ipaddr(), get_remote_port()); close(sock_in); close(sock_out); - logit("Bad protocol version identification '%.100s' from %s", - client_version_string, get_remote_ipaddr()); cleanup_exit(255); } debug("Client protocol version %d.%d; client software version %.100s", @@ -474,17 +492,24 @@ sshd_exchange_identification(int sock_in, int sock_out) compat_datafellows(remote_version); - if (datafellows & SSH_BUG_PROBE) { + if ((datafellows & SSH_BUG_PROBE) != 0) { logit("probed from %s with %s. Don't panic.", get_remote_ipaddr(), client_version_string); cleanup_exit(255); } - - if (datafellows & SSH_BUG_SCANNER) { + if ((datafellows & SSH_BUG_SCANNER) != 0) { logit("scanned from %s with %s. Don't panic.", get_remote_ipaddr(), client_version_string); cleanup_exit(255); } + if ((datafellows & SSH_BUG_RSASIGMD5) != 0) { + logit("Client version \"%.100s\" uses unsafe RSA signature " + "scheme; disabling use of RSA keys", remote_version); + } + if ((datafellows & SSH_BUG_DERIVEKEY) != 0) { + fatal("Client version \"%.100s\" uses unsafe key agreement; " + "refusing connection", remote_version); + } mismatch = 0; switch (remote_major) { @@ -596,6 +621,7 @@ privsep_preauth_child(void) arc4random_stir(); arc4random_buf(rnd, sizeof(rnd)); RAND_seed(rnd, sizeof(rnd)); + bzero(rnd, sizeof(rnd)); /* Demote the private keys to public keys. */ demote_sensitive_data(); @@ -633,17 +659,19 @@ privsep_preauth(Authctxt *authctxt) /* Store a pointer to the kex for later rekeying */ pmonitor->m_pkex = &xxx_kex; - if (use_privsep == PRIVSEP_SANDBOX) - box = ssh_sandbox_init(); + if (use_privsep == PRIVSEP_ON) + box = ssh_sandbox_init(pmonitor); pid = fork(); if (pid == -1) { fatal("fork of unprivileged child failed"); } else if (pid != 0) { debug2("Network child is on pid %ld", (long)pid); + pmonitor->m_pid = pid; + if (have_agent) + auth_conn = ssh_get_authentication_connection(); if (box != NULL) ssh_sandbox_parent_preauth(box, pid); - pmonitor->m_pid = pid; monitor_child_preauth(authctxt, pmonitor); /* Sync memory */ @@ -728,6 +756,7 @@ privsep_postauth(Authctxt *authctxt) arc4random_stir(); arc4random_buf(rnd, sizeof(rnd)); RAND_seed(rnd, sizeof(rnd)); + bzero(rnd, sizeof(rnd)); /* Drop privileges */ do_setusercontext(authctxt->pw); @@ -756,11 +785,14 @@ list_hostkey_types(void) for (i = 0; i < options.num_host_key_files; i++) { key = sensitive_data.host_keys[i]; if (key == NULL) + key = sensitive_data.host_pubkeys[i]; + if (key == NULL) continue; switch (key->type) { case KEY_RSA: case KEY_DSA: case KEY_ECDSA: + case KEY_ED25519: if (buffer_len(&b) > 0) buffer_append(&b, ",", 1); p = key_ssh_name(key); @@ -777,6 +809,7 @@ list_hostkey_types(void) case KEY_RSA_CERT: case KEY_DSA_CERT: case KEY_ECDSA_CERT: + case KEY_ED25519_CERT: if (buffer_len(&b) > 0) buffer_append(&b, ",", 1); p = key_ssh_name(key); @@ -804,10 +837,13 @@ get_hostkey_by_type(int type, int need_private) case KEY_RSA_CERT: case KEY_DSA_CERT: case KEY_ECDSA_CERT: + case KEY_ED25519_CERT: key = sensitive_data.host_certificates[i]; break; default: key = sensitive_data.host_keys[i]; + if (key == NULL && !need_private) + key = sensitive_data.host_pubkeys[i]; break; } if (key != NULL && key->type == type) @@ -837,6 +873,14 @@ get_hostkey_by_index(int ind) return (sensitive_data.host_keys[ind]); } +Key * +get_hostkey_public_by_index(int ind) +{ + if (ind < 0 || ind >= options.num_host_key_files) + return (NULL); + return (sensitive_data.host_pubkeys[ind]); +} + int get_hostkey_index(Key *key) { @@ -849,6 +893,8 @@ get_hostkey_index(Key *key) } else { if (key == sensitive_data.host_keys[i]) return (i); + if (key == sensitive_data.host_pubkeys[i]) + return (i); } } return (-1); @@ -889,8 +935,9 @@ usage(void) SSH_RELEASE, SSLeay_version(SSLEAY_VERSION)); fprintf(stderr, "usage: sshd [-46DdeiqTt] [-b bits] [-C connection_spec] [-c host_cert_file]\n" -" [-f config_file] [-g login_grace_time] [-h host_key_file]\n" -" [-k key_gen_time] [-o option] [-p port] [-u len]\n" +" [-E log_file] [-f config_file] [-g login_grace_time]\n" +" [-h host_key_file] [-k key_gen_time] [-o option] [-p port]\n" +" [-u len]\n" ); exit(1); } @@ -961,7 +1008,7 @@ recv_rexec_state(int fd, Buffer *conf) cp = buffer_get_string(&m, &len); if (conf != NULL) buffer_append(conf, cp, len + 1); - xfree(cp); + free(cp); if (buffer_get_int(&m)) { if (sensitive_data.server_key != NULL) @@ -1012,7 +1059,9 @@ server_accept_inetd(int *sock_in, int *sock_out) if ((fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { dup2(fd, STDIN_FILENO); dup2(fd, STDOUT_FILENO); - if (fd > STDOUT_FILENO) + if (!log_stderr) + dup2(fd, STDERR_FILENO); + if (fd > (log_stderr ? STDERR_FILENO : STDOUT_FILENO)) close(fd); } debug("inetd sockets after dupping: %d, %d", *sock_in, *sock_out); @@ -1103,6 +1152,7 @@ server_accept_loop(int *sock_in, int *sock_out, int *newsock, int *config_s) struct sockaddr_storage from; socklen_t fromlen; pid_t pid; + u_char rnd[256]; /* setup fd set for accept */ fdset = NULL; @@ -1123,7 +1173,7 @@ server_accept_loop(int *sock_in, int *sock_out, int *newsock, int *config_s) if (received_sighup) sighup_restart(); if (fdset != NULL) - xfree(fdset); + free(fdset); fdset = (fd_set *)xcalloc(howmany(maxfd + 1, NFDBITS), sizeof(fd_mask)); @@ -1172,9 +1222,12 @@ server_accept_loop(int *sock_in, int *sock_out, int *newsock, int *config_s) *newsock = accept(listen_socks[i], (struct sockaddr *)&from, &fromlen); if (*newsock < 0) { - if (errno != EINTR && errno != EAGAIN && - errno != EWOULDBLOCK) - error("accept: %.100s", strerror(errno)); + if (errno != EINTR && errno != EWOULDBLOCK && + errno != ECONNABORTED && errno != EAGAIN) + error("accept: %.100s", + strerror(errno)); + if (errno == EMFILE || errno == ENFILE) + usleep(100 * 1000); continue; } if (unset_nonblock(*newsock) == -1) { @@ -1300,6 +1353,9 @@ server_accept_loop(int *sock_in, int *sock_out, int *newsock, int *config_s) * from that of the child */ arc4random_stir(); + arc4random_buf(rnd, sizeof(rnd)); + RAND_seed(rnd, sizeof(rnd)); + bzero(rnd, sizeof(rnd)); } /* child process check (or debug mode) */ @@ -1320,14 +1376,17 @@ main(int ac, char **av) int opt, i, j, on = 1; int sock_in = -1, sock_out = -1, newsock = -1; const char *remote_ip; - char *test_user = NULL, *test_host = NULL, *test_addr = NULL; int remote_port; - char *line, *p, *cp; + char *line, *logfile = NULL; int config_s[2] = { -1 , -1 }; + u_int n; u_int64_t ibytes, obytes; mode_t new_umask; Key *key; + Key *pubkey; + int keytype; Authctxt *authctxt; + struct connection_info *connection_info = get_connection_info(0, 0); #ifdef HAVE_SECUREWARE (void)set_auth_parameters(ac, av); @@ -1358,7 +1417,7 @@ main(int ac, char **av) initialize_server_options(&options); /* Parse command-line arguments. */ - while ((opt = getopt(ac, av, "f:p:b:k:h:g:u:o:C:dDeiqrtQRT46")) != -1) { + while ((opt = getopt(ac, av, "f:p:b:k:h:g:u:o:C:dDeE:iqrtQRT46")) != -1) { switch (opt) { case '4': options.address_family = AF_INET; @@ -1387,6 +1446,9 @@ main(int ac, char **av) case 'D': no_daemon_flag = 1; break; + case 'E': + logfile = xstrdup(optarg); + /* FALLTHROUGH */ case 'e': log_stderr = 1; break; @@ -1449,20 +1511,9 @@ main(int ac, char **av) test_flag = 2; break; case 'C': - cp = optarg; - while ((p = strsep(&cp, ",")) && *p != '\0') { - if (strncmp(p, "addr=", 5) == 0) - test_addr = xstrdup(p + 5); - else if (strncmp(p, "host=", 5) == 0) - test_host = xstrdup(p + 5); - else if (strncmp(p, "user=", 5) == 0) - test_user = xstrdup(p + 5); - else { - fprintf(stderr, "Invalid test " - "mode specification %s\n", p); - exit(1); - } - } + if (parse_server_match_testspec(connection_info, + optarg) == -1) + exit(1); break; case 'u': utmp_len = (u_int)strtonum(optarg, 0, MAXHOSTNAMELEN+1, NULL); @@ -1474,9 +1525,9 @@ main(int ac, char **av) case 'o': line = xstrdup(optarg); if (process_server_config_line(&options, line, - "command-line", 0, NULL, NULL, NULL, NULL) != 0) + "command-line", 0, NULL, NULL) != 0) exit(1); - xfree(line); + free(line); break; case '?': default: @@ -1495,6 +1546,11 @@ main(int ac, char **av) OpenSSL_add_all_algorithms(); + /* If requested, redirect the logs to the specified logfile. */ + if (logfile != NULL) { + log_redirect_stderr_to(logfile); + free(logfile); + } /* * Force logging to stderr until we have loaded the private host * key (unless started from inetd) @@ -1530,13 +1586,10 @@ main(int ac, char **av) * the parameters we need. If we're not doing an extended test, * do not silently ignore connection test params. */ - if (test_flag >= 2 && - (test_user != NULL || test_host != NULL || test_addr != NULL) - && (test_user == NULL || test_host == NULL || test_addr == NULL)) + if (test_flag >= 2 && server_match_spec_complete(connection_info) == 0) fatal("user, host and addr are all required when testing " "Match configs"); - if (test_flag < 2 && (test_user != NULL || test_host != NULL || - test_addr != NULL)) + if (test_flag < 2 && server_match_spec_complete(connection_info) >= 0) fatal("Config test connection parameter (-C) provided without " "test mode (-T)"); @@ -1548,7 +1601,7 @@ main(int ac, char **av) load_server_config(config_file_name, &cfg); parse_server_config(&options, rexeced_flag ? "rexec" : config_file_name, - &cfg, NULL, NULL, NULL); + &cfg, NULL); seed_rng(); @@ -1559,6 +1612,33 @@ main(int ac, char **av) if (options.challenge_response_authentication) options.kbd_interactive_authentication = 1; + /* Check that options are sensible */ + if (options.authorized_keys_command_user == NULL && + (options.authorized_keys_command != NULL && + strcasecmp(options.authorized_keys_command, "none") != 0)) + fatal("AuthorizedKeysCommand set without " + "AuthorizedKeysCommandUser"); + + /* + * Check whether there is any path through configured auth methods. + * Unfortunately it is not possible to verify this generally before + * daemonisation in the presence of Match block, but this catches + * and warns for trivial misconfigurations that could break login. + */ + if (options.num_auth_methods != 0) { + if ((options.protocol & SSH_PROTO_1)) + fatal("AuthenticationMethods is not supported with " + "SSH protocol 1"); + for (n = 0; n < options.num_auth_methods; n++) { + if (auth2_methods_valid(options.auth_methods[n], + 1) == 0) + break; + } + if (n >= options.num_auth_methods) + fatal("AuthenticationMethods cannot be satisfied by " + "enabled authentication methods"); + } + /* set default channel AF */ channel_set_af(options.address_family); @@ -1568,7 +1648,8 @@ main(int ac, char **av) exit(1); } - debug("sshd version %.100s", SSH_RELEASE); + debug("sshd version %s, %s", SSH_VERSION, + SSLeay_version(SSLEAY_VERSION)); /* Store privilege separation user for later use if required. */ if ((privsep_pw = getpwnam(SSH_PRIVSEP_USER)) == NULL) { @@ -1578,27 +1659,50 @@ main(int ac, char **av) } else { memset(privsep_pw->pw_passwd, 0, strlen(privsep_pw->pw_passwd)); privsep_pw = pwcopy(privsep_pw); - xfree(privsep_pw->pw_passwd); + free(privsep_pw->pw_passwd); privsep_pw->pw_passwd = xstrdup("*"); } endpwent(); - /* load private host keys */ + /* load host keys */ sensitive_data.host_keys = xcalloc(options.num_host_key_files, sizeof(Key *)); - for (i = 0; i < options.num_host_key_files; i++) + sensitive_data.host_pubkeys = xcalloc(options.num_host_key_files, + sizeof(Key *)); + for (i = 0; i < options.num_host_key_files; i++) { sensitive_data.host_keys[i] = NULL; + sensitive_data.host_pubkeys[i] = NULL; + } + + if (options.host_key_agent) { + if (strcmp(options.host_key_agent, SSH_AUTHSOCKET_ENV_NAME)) + setenv(SSH_AUTHSOCKET_ENV_NAME, + options.host_key_agent, 1); + have_agent = ssh_agent_present(); + } for (i = 0; i < options.num_host_key_files; i++) { key = key_load_private(options.host_key_files[i], "", NULL); + pubkey = key_load_public(options.host_key_files[i], NULL); sensitive_data.host_keys[i] = key; - if (key == NULL) { + sensitive_data.host_pubkeys[i] = pubkey; + + if (key == NULL && pubkey != NULL && pubkey->type != KEY_RSA1 && + have_agent) { + debug("will rely on agent for hostkey %s", + options.host_key_files[i]); + keytype = pubkey->type; + } else if (key != NULL) { + keytype = key->type; + } else { error("Could not load host key: %s", options.host_key_files[i]); sensitive_data.host_keys[i] = NULL; + sensitive_data.host_pubkeys[i] = NULL; continue; } - switch (key->type) { + + switch (keytype) { case KEY_RSA1: sensitive_data.ssh1_host_key = key; sensitive_data.have_ssh1_key = 1; @@ -1606,11 +1710,12 @@ main(int ac, char **av) case KEY_RSA: case KEY_DSA: case KEY_ECDSA: + case KEY_ED25519: sensitive_data.have_ssh2_key = 1; break; } - debug("private host key: #%d type %d %s", i, key->type, - key_type(key)); + debug("private host key: #%d type %d %s", i, keytype, + key_type(key ? key : pubkey)); } if ((options.protocol & SSH_PROTO_1) && !sensitive_data.have_ssh1_key) { logit("Disabling protocol version 1. Could not load host key"); @@ -1710,9 +1815,8 @@ main(int ac, char **av) } if (test_flag > 1) { - if (test_user != NULL && test_addr != NULL && test_host != NULL) - parse_server_match_config(&options, test_user, - test_host, test_addr); + if (server_match_spec_complete(connection_info) == 1) + parse_server_match_config(&options, connection_info); dump_config(&options); } @@ -1773,12 +1877,10 @@ main(int ac, char **av) /* Reinitialize the log (because of the fork above). */ log_init(__progname, options.log_level, options.log_facility, log_stderr); - /* Initialize the random number generator. */ - arc4random_stir(); - /* Chdir to the root directory so that the current disk can be unmounted if desired. */ - chdir("/"); + if (chdir("/") == -1) + error("chdir(\"/\"): %s", strerror(errno)); /* ignore SIGPIPE */ signal(SIGPIPE, SIG_IGN); @@ -1846,13 +1948,14 @@ main(int ac, char **av) dup2(STDIN_FILENO, STDOUT_FILENO); if (startup_pipe == -1) close(REEXEC_STARTUP_PIPE_FD); - else + else if (startup_pipe != REEXEC_STARTUP_PIPE_FD) { dup2(startup_pipe, REEXEC_STARTUP_PIPE_FD); + close(startup_pipe); + startup_pipe = REEXEC_STARTUP_PIPE_FD; + } dup2(config_s[1], REEXEC_CONFIG_PASS_FD); close(config_s[1]); - if (startup_pipe != -1) - close(startup_pipe); execv(rexec_argv[0], rexec_argv); @@ -1863,8 +1966,6 @@ main(int ac, char **av) options.log_facility, log_stderr); /* Clean up fds */ - startup_pipe = REEXEC_STARTUP_PIPE_FD; - close(config_s[1]); close(REEXEC_CONFIG_PASS_FD); newsock = sock_out = sock_in = dup(STDIN_FILENO); if ((fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { @@ -1946,7 +2047,9 @@ main(int ac, char **av) #endif /* LIBWRAP */ /* Log the connection. */ - verbose("Connection from %.500s port %d", remote_ip, remote_port); + verbose("Connection from %s port %d on %s port %d", + remote_ip, remote_port, + get_local_ipaddr(sock_in), get_local_port()); /* * We don't want to listen forever unless the other side @@ -1980,9 +2083,11 @@ main(int ac, char **av) buffer_init(&loginmsg); auth_debug_reset(); - if (use_privsep) + if (use_privsep) { if (privsep_preauth(authctxt) == 1) goto authenticated; + } else if (compat20 && have_agent) + auth_conn = ssh_get_authentication_connection(); /* perform the key exchange */ /* authenticate user and start session */ @@ -2269,7 +2374,7 @@ do_ssh1_kex(void) MD5_Update(&md, sensitive_data.ssh1_cookie, SSH_SESSION_KEY_LENGTH); MD5_Final(session_key + 16, &md); memset(buf, 0, bytes); - xfree(buf); + free(buf); for (i = 0; i < 16; i++) session_id[i] = session_key[i] ^ session_key[i + 16]; } @@ -2296,6 +2401,23 @@ do_ssh1_kex(void) packet_write_wait(); } +void +sshd_hostkey_sign(Key *privkey, Key *pubkey, u_char **signature, u_int *slen, + u_char *data, u_int dlen) +{ + if (privkey) { + if (PRIVSEP(key_sign(privkey, signature, slen, data, dlen) < 0)) + fatal("%s: key_sign failed", __func__); + } else if (use_privsep) { + if (mm_key_sign(pubkey, signature, slen, data, dlen) < 0) + fatal("%s: pubkey_sign failed", __func__); + } else { + if (ssh_agent_sign(auth_conn, pubkey, signature, slen, data, + dlen)) + fatal("%s: ssh_agent_sign failed", __func__); + } +} + /* * SSH2 key exchange: diffie-hellman-group1-sha1 */ @@ -2327,7 +2449,12 @@ do_ssh2_kex(void) if (options.kex_algorithms != NULL) myproposal[PROPOSAL_KEX_ALGS] = options.kex_algorithms; - myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS] = list_hostkey_types(); + if (options.rekey_limit || options.rekey_interval) + packet_set_rekey_limits((u_int32_t)options.rekey_limit, + (time_t)options.rekey_interval); + + myproposal[PROPOSAL_SERVER_HOST_KEY_ALGS] = compat_pkalg_proposal( + list_hostkey_types()); /* start key exchange */ kex = kex_setup(myproposal); @@ -2336,12 +2463,14 @@ do_ssh2_kex(void) kex->kex[KEX_DH_GEX_SHA1] = kexgex_server; kex->kex[KEX_DH_GEX_SHA256] = kexgex_server; kex->kex[KEX_ECDH_SHA2] = kexecdh_server; + kex->kex[KEX_C25519_SHA256] = kexc25519_server; kex->server = 1; kex->client_version_string=client_version_string; kex->server_version_string=server_version_string; kex->load_host_public_key=&get_hostkey_public_by_type; kex->load_host_private_key=&get_hostkey_private_by_type; kex->host_key_index=&get_hostkey_index; + kex->sign = sshd_hostkey_sign; xxx_kex = kex; diff --git a/sshd_config b/sshd_config index ca2a5093..089119cc 100644 --- a/sshd_config +++ b/sshd_config @@ -1,4 +1,4 @@ -# $OpenBSD: sshd_config,v 1.84 2011/05/23 03:30:07 djm Exp $ +# $OpenBSD: sshd_config,v 1.93 2014/01/10 05:59:19 djm Exp $ # This is the sshd server system-wide configuration file. See # sshd_config(5) for more information. @@ -24,11 +24,15 @@ #HostKey /etc/ssh/ssh_host_rsa_key #HostKey /etc/ssh/ssh_host_dsa_key #HostKey /etc/ssh/ssh_host_ecdsa_key +#HostKey /etc/ssh/ssh_host_ed25519_key # Lifetime and size of ephemeral version 1 server key #KeyRegenerationInterval 1h #ServerKeyBits 1024 +# Ciphers and keying +#RekeyLimit default none + # Logging # obsoletes QuietMode and FascistLogging #SyslogFacility AUTH @@ -49,6 +53,11 @@ # but this is overridden so installations will only check .ssh/authorized_keys AuthorizedKeysFile .ssh/authorized_keys +#AuthorizedPrincipalsFile none + +#AuthorizedKeysCommand none +#AuthorizedKeysCommandUser nobody + # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts #RhostsRSAAuthentication no # similar for protocol version 2 @@ -76,8 +85,8 @@ AuthorizedKeysFile .ssh/authorized_keys #GSSAPIAuthentication no #GSSAPICleanupCredentials yes -# Set this to 'yes' to enable PAM authentication, account processing, -# and session processing. If this is enabled, PAM authentication will +# Set this to 'yes' to enable PAM authentication, account processing, +# and session processing. If this is enabled, PAM authentication will # be allowed through the ChallengeResponseAuthentication and # PasswordAuthentication. Depending on your PAM configuration, # PAM authentication via ChallengeResponseAuthentication may bypass @@ -93,20 +102,22 @@ AuthorizedKeysFile .ssh/authorized_keys #X11Forwarding no #X11DisplayOffset 10 #X11UseLocalhost yes +#PermitTTY yes #PrintMotd yes #PrintLastLog yes #TCPKeepAlive yes #UseLogin no -#UsePrivilegeSeparation yes +UsePrivilegeSeparation sandbox # Default for new installations. PermitUserEnvironment yes #Compression delayed #ClientAliveInterval 0 #ClientAliveCountMax 3 #UseDNS yes #PidFile /var/run/sshd.pid -#MaxStartups 10 +#MaxStartups 10:30:100 #PermitTunnel no #ChrootDirectory none +#VersionAddendum none # no default banner path #Banner none @@ -118,6 +129,7 @@ Subsystem sftp /usr/libexec/sftp-server #Match User anoncvs # X11Forwarding no # AllowTcpForwarding no +# PermitTTY no # ForceCommand cvs server AcceptEnv LANG LC_* diff --git a/sshd_config.5 b/sshd_config.5 index 4ef8b9e6..3b21ea6e 100644 --- a/sshd_config.5 +++ b/sshd_config.5 @@ -33,8 +33,8 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.\" $OpenBSD: sshd_config.5,v 1.136 2011/09/09 00:43:00 djm Exp $ -.Dd $Mdocdate: September 9 2011 $ +.\" $OpenBSD: sshd_config.5,v 1.170 2013/12/08 09:53:27 dtucker Exp $ +.Dd $Mdocdate: December 8 2013 $ .Dt SSHD_CONFIG 5 .Os .Sh NAME @@ -117,13 +117,24 @@ The allow/deny directives are processed in the following order: and finally .Cm AllowGroups . .Pp -See -.Sx PATTERNS -in +See PATTERNS in .Xr ssh_config 5 for more information on patterns. .It Cm AllowTcpForwarding Specifies whether TCP forwarding is permitted. +The available options are +.Dq yes +or +.Dq all +to allow TCP forwarding, +.Dq no +to prevent all TCP forwarding, +.Dq local +to allow local (from the perspective of +.Xr ssh 1 ) +forwarding only or +.Dq remote +to allow remote forwarding only. The default is .Dq yes . Note that disabling TCP forwarding does not improve security unless @@ -146,16 +157,66 @@ The allow/deny directives are processed in the following order: and finally .Cm AllowGroups . .Pp -See -.Sx PATTERNS -in +See PATTERNS in .Xr ssh_config 5 for more information on patterns. +.It Cm AuthenticationMethods +Specifies the authentication methods that must be successfully completed +for a user to be granted access. +This option must be followed by one or more comma-separated lists of +authentication method names. +Successful authentication requires completion of every method in at least +one of these lists. +.Pp +For example, an argument of +.Dq publickey,password publickey,keyboard-interactive +would require the user to complete public key authentication, followed by +either password or keyboard interactive authentication. +Only methods that are next in one or more lists are offered at each stage, +so for this example, it would not be possible to attempt password or +keyboard-interactive authentication before public key. +.Pp +For keyboard interactive authentication it is also possible to +restrict authentication to a specific device by appending a +colon followed by the device identifier +.Dq bsdauth , +.Dq pam , +or +.Dq skey , +depending on the server configuration. +For example, +.Dq keyboard-interactive:bsdauth +would restrict keyboard interactive authentication to the +.Dq bsdauth +device. +.Pp +This option is only available for SSH protocol 2 and will yield a fatal +error if enabled if protocol 1 is also enabled. +Note that each authentication method listed should also be explicitly enabled +in the configuration. +The default is not to require multiple authentication; successful completion +of a single authentication method is sufficient. +.It Cm AuthorizedKeysCommand +Specifies a program to be used to look up the user's public keys. +The program must be owned by root and not writable by group or others. +It will be invoked with a single argument of the username +being authenticated, and should produce on standard output zero or +more lines of authorized_keys output (see AUTHORIZED_KEYS in +.Xr sshd 8 ) . +If a key supplied by AuthorizedKeysCommand does not successfully authenticate +and authorize the user then public key authentication continues using the usual +.Cm AuthorizedKeysFile +files. +By default, no AuthorizedKeysCommand is run. +.It Cm AuthorizedKeysCommandUser +Specifies the user under whose account the AuthorizedKeysCommand is run. +It is recommended to use a dedicated user that has no other role on the host +than running authorized keys commands. .It Cm AuthorizedKeysFile Specifies the file that contains the public keys that can be used for user authentication. The format is described in the -.Sx AUTHORIZED_KEYS FILE FORMAT +AUTHORIZED_KEYS FILE FORMAT section of .Xr sshd 8 . .Cm AuthorizedKeysFile @@ -179,9 +240,7 @@ When using certificates signed by a key listed in this file lists names, one of which must appear in the certificate for it to be accepted for authentication. Names are listed one per line preceded by key options (as described -in -.Sx AUTHORIZED_KEYS FILE FORMAT -in +in AUTHORIZED_KEYS FILE FORMAT in .Xr sshd 8 ) . Empty lines and comments starting with .Ql # @@ -198,7 +257,9 @@ After expansion, is taken to be an absolute path or one relative to the user's home directory. .Pp -The default is not to use a principals file \(en in this case, the username +The default is +.Dq none , +i.e. not to use a principals file \(en in this case, the username of the user must appear in a certificate's principals list for it to be accepted. Note that @@ -274,7 +335,8 @@ The default is not to .It Cm Ciphers Specifies the ciphers allowed for protocol version 2. Multiple ciphers must be comma-separated. -The supported ciphers are +The supported ciphers are: +.Pp .Dq 3des-cbc , .Dq aes128-cbc , .Dq aes192-cbc , @@ -282,18 +344,29 @@ The supported ciphers are .Dq aes128-ctr , .Dq aes192-ctr , .Dq aes256-ctr , +.Dq aes128-gcm@openssh.com , +.Dq aes256-gcm@openssh.com , .Dq arcfour128 , .Dq arcfour256 , .Dq arcfour , .Dq blowfish-cbc , +.Dq cast128-cbc , and -.Dq cast128-cbc . +.Dq chacha20-poly1305@openssh.com . +.Pp The default is: .Bd -literal -offset 3n aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128, +aes128-gcm@openssh.com,aes256-gcm@openssh.com, +chacha20-poly1305@openssh.com, aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc, aes256-cbc,arcfour .Ed +.Pp +The list of available ciphers may also be obtained using the +.Fl Q +option of +.Xr ssh 1 . .It Cm ClientAliveCountMax Sets the number of client alive messages (see below) which may be sent without @@ -354,9 +427,7 @@ The allow/deny directives are processed in the following order: and finally .Cm AllowGroups . .Pp -See -.Sx PATTERNS -in +See PATTERNS in .Xr ssh_config 5 for more information on patterns. .It Cm DenyUsers @@ -375,9 +446,7 @@ The allow/deny directives are processed in the following order: and finally .Cm AllowGroups . .Pp -See -.Sx PATTERNS -in +See PATTERNS in .Xr ssh_config 5 for more information on patterns. .It Cm ForceCommand @@ -471,7 +540,8 @@ The default is .Pa /etc/ssh/ssh_host_key for protocol version 1, and .Pa /etc/ssh/ssh_host_dsa_key , -.Pa /etc/ssh/ssh_host_ecdsa_key +.Pa /etc/ssh/ssh_host_ecdsa_key , +.Pa /etc/ssh/ssh_host_ed25519_key and .Pa /etc/ssh/ssh_host_rsa_key for protocol version 2. @@ -482,10 +552,23 @@ It is possible to have multiple host key files. .Dq rsa1 keys are used for version 1 and .Dq dsa , -.Dq ecdsa +.Dq ecdsa , +.Dq ed25519 or .Dq rsa are used for version 2 of the SSH protocol. +It is also possible to specify public host key files instead. +In this case operations on the private key will be delegated +to an +.Xr ssh-agent 1 . +.It Cm HostKeyAgent +Identifies the UNIX-domain socket used to communicate +with an agent that has access to the private host keys. +If +.Dq SSH_AUTH_SOCK +is specified, the location of the socket will be read from the +.Ev SSH_AUTH_SOCK +environment variable. .It Cm IgnoreRhosts Specifies that .Pa .rhosts @@ -579,13 +662,14 @@ The default is Specifies the available KEX (Key Exchange) algorithms. Multiple algorithms must be comma-separated. The default is -.Dq ecdh-sha2-nistp256 , -.Dq ecdh-sha2-nistp384 , -.Dq ecdh-sha2-nistp521 , -.Dq diffie-hellman-group-exchange-sha256 , -.Dq diffie-hellman-group-exchange-sha1 , -.Dq diffie-hellman-group14-sha1 , -.Dq diffie-hellman-group1-sha1 . +.Bd -literal -offset indent +curve25519-sha256@libssh.org, +ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521, +diffie-hellman-group-exchange-sha256, +diffie-hellman-group-exchange-sha1, +diffie-hellman-group14-sha1, +diffie-hellman-group1-sha1 +.Ed .It Cm KeyRegenerationInterval In protocol version 1, the ephemeral server key is automatically regenerated after this many seconds (if it has been used). @@ -652,12 +736,20 @@ Specifies the available MAC (message authentication code) algorithms. The MAC algorithm is used in protocol version 2 for data integrity protection. Multiple algorithms must be comma-separated. +The algorithms that contain +.Dq -etm +calculate the MAC after encryption (encrypt-then-mac). +These are considered safer and their use recommended. The default is: .Bd -literal -offset indent -hmac-md5,hmac-sha1,umac-64@openssh.com, -hmac-ripemd160,hmac-sha1-96,hmac-md5-96, -hmac-sha2-256,hmac-sha256-96,hmac-sha2-512, -hmac-sha2-512-96 +hmac-md5-etm@openssh.com,hmac-sha1-etm@openssh.com, +umac-64-etm@openssh.com,umac-128-etm@openssh.com, +hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com, +hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com, +hmac-md5-96-etm@openssh.com, +hmac-md5,hmac-sha1,umac-64@openssh.com,umac-128@openssh.com, +hmac-sha2-256,hmac-sha2-512,hmac-ripemd160, +hmac-sha1-96,hmac-md5-96 .Ed .It Cm Match Introduces a conditional block. @@ -670,17 +762,20 @@ line or the end of the file. .Pp The arguments to .Cm Match -are one or more criteria-pattern pairs. +are one or more criteria-pattern pairs or the single token +.Cm All +which matches all criteria. The available criteria are .Cm User , .Cm Group , .Cm Host , +.Cm LocalAddress , +.Cm LocalPort , and .Cm Address . The match patterns may consist of single entries or comma-separated lists and may use the wildcard and negation operators described in the -.Sx PATTERNS -section of +PATTERNS section of .Xr ssh_config 5 . .Pp The patterns in an @@ -703,12 +798,20 @@ Only a subset of keywords may be used on the lines following a .Cm Match keyword. Available keywords are +.Cm AcceptEnv , .Cm AllowAgentForwarding , +.Cm AllowGroups , .Cm AllowTcpForwarding , +.Cm AllowUsers , +.Cm AuthenticationMethods , +.Cm AuthorizedKeysCommand , +.Cm AuthorizedKeysCommandUser , .Cm AuthorizedKeysFile , .Cm AuthorizedPrincipalsFile , .Cm Banner , .Cm ChrootDirectory , +.Cm DenyGroups , +.Cm DenyUsers , .Cm ForceCommand , .Cm GatewayPorts , .Cm GSSAPIAuthentication , @@ -722,8 +825,10 @@ Available keywords are .Cm PermitEmptyPasswords , .Cm PermitOpen , .Cm PermitRootLogin , +.Cm PermitTTY , .Cm PermitTunnel , .Cm PubkeyAuthentication , +.Cm RekeyLimit , .Cm RhostsRSAAuthentication , .Cm RSAAuthentication , .Cm X11DisplayOffset , @@ -745,7 +850,7 @@ SSH daemon. Additional connections will be dropped until authentication succeeds or the .Cm LoginGraceTime expires for a connection. -The default is 10. +The default is 10:30:100. .Pp Alternatively, random early drop can be enabled by specifying the three colon separated values @@ -798,6 +903,9 @@ Multiple forwards may be specified by separating them with whitespace. An argument of .Dq any can be used to remove all restrictions and permit any forwarding requests. +An argument of +.Dq none +can be used to prohibit all forwarding requests. By default all port forwarding requests are permitted. .It Cm PermitRootLogin Specifies whether root can log in using @@ -847,6 +955,12 @@ and .Dq ethernet . The default is .Dq no . +.It Cm PermitTTY +Specifies whether +.Xr pty 4 +allocation is permitted. +The default is +.Dq yes . .It Cm PermitUserEnvironment Specifies whether .Pa ~/.ssh/environment @@ -915,11 +1029,42 @@ Specifies whether public key authentication is allowed. The default is .Dq yes . Note that this option applies to protocol version 2 only. +.It Cm RekeyLimit +Specifies the maximum amount of data that may be transmitted before the +session key is renegotiated, optionally followed a maximum amount of +time that may pass before the session key is renegotiated. +The first argument is specified in bytes and may have a suffix of +.Sq K , +.Sq M , +or +.Sq G +to indicate Kilobytes, Megabytes, or Gigabytes, respectively. +The default is between +.Sq 1G +and +.Sq 4G , +depending on the cipher. +The optional second value is specified in seconds and may use any of the +units documented in the +.Sx TIME FORMATS +section. +The default value for +.Cm RekeyLimit +is +.Dq default none , +which means that rekeying is performed after the cipher's default amount +of data has been sent or received and no time based rekeying is done. +This option applies to protocol version 2 only. .It Cm RevokedKeys -Specifies a list of revoked public keys. +Specifies revoked public keys. Keys listed in this file will be refused for public key authentication. Note that if this file is not readable, then public key authentication will be refused for all users. +Keys may be specified as a text file, listing one public key per line, or as +an OpenSSH Key Revocation List (KRL) as generated by +.Xr ssh-keygen 1 . +For more information on KRLs, see the KEY REVOCATION LISTS section in +.Xr ssh-keygen 1 . .It Cm RhostsRSAAuthentication Specifies whether rhosts or /etc/hosts.equiv authentication together with successful RSA host authentication is allowed. @@ -1007,9 +1152,7 @@ listed in the certificate's principals list. Note that certificates that lack a list of principals will not be permitted for authentication using .Cm TrustedUserCAKeys . -For more details on certificates, see the -.Sx CERTIFICATES -section in +For more details on certificates, see the CERTIFICATES section in .Xr ssh-keygen 1 . .It Cm UseDNS Specifies whether @@ -1079,6 +1222,11 @@ is set to .Dq sandbox then the pre-authentication unprivileged process is subject to additional restrictions. +.It Cm VersionAddendum +Optionally specifies additional text to append to the SSH protocol banner +sent by the server upon connection. +The default is +.Dq none . .It Cm X11DisplayOffset Specifies the first display number available for .Xr sshd 8 Ns 's @@ -97,7 +97,7 @@ store_lastlog_message(const char *user, uid_t uid) time_string = sys_auth_get_lastlogin_msg(user, uid); if (time_string != NULL) { buffer_append(&loginmsg, time_string, strlen(time_string)); - xfree(time_string); + free(time_string); } # else last_login_time = get_last_login_time(uid, user, hostname, @@ -15,7 +15,7 @@ void record_login(pid_t, const char *, const char *, uid_t, const char *, struct sockaddr *, socklen_t); void record_logout(pid_t, const char *, const char *); -time_t get_last_login_time(uid_t, const char *, char *, u_int); +time_t get_last_login_time(uid_t, const char *, char *, size_t); #ifdef LOGIN_NEEDS_UTMPX void record_utmp_only(pid_t, const char *, const char *, const char *, @@ -1,4 +1,4 @@ -/* $OpenBSD: uidswap.c,v 1.35 2006/08/03 03:34:42 deraadt Exp $ */ +/* $OpenBSD: uidswap.c,v 1.36 2013/11/08 11:15:19 dtucker Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -20,6 +20,7 @@ #include <string.h> #include <unistd.h> #include <stdarg.h> +#include <stdlib.h> #include <grp.h> @@ -90,8 +91,7 @@ temporarily_use_uid(struct passwd *pw) if (getgroups(saved_egroupslen, saved_egroups) < 0) fatal("getgroups: %.100s", strerror(errno)); } else { /* saved_egroupslen == 0 */ - if (saved_egroups != NULL) - xfree(saved_egroups); + free(saved_egroups); } /* set and save the user's groups */ @@ -109,8 +109,7 @@ temporarily_use_uid(struct passwd *pw) if (getgroups(user_groupslen, user_groups) < 0) fatal("getgroups: %.100s", strerror(errno)); } else { /* user_groupslen == 0 */ - if (user_groups) - xfree(user_groups); + free(user_groups); } } /* Set the effective uid to the given (unprivileged) uid. */ @@ -135,23 +134,13 @@ temporarily_use_uid(struct passwd *pw) void permanently_drop_suid(uid_t uid) { +#ifndef HAVE_CYGWIN uid_t old_uid = getuid(); +#endif debug("permanently_drop_suid: %u", (u_int)uid); -#if defined(HAVE_SETRESUID) && !defined(BROKEN_SETRESUID) if (setresuid(uid, uid, uid) < 0) fatal("setresuid %u: %.100s", (u_int)uid, strerror(errno)); -#elif defined(HAVE_SETREUID) && !defined(BROKEN_SETREUID) - if (setreuid(uid, uid) < 0) - fatal("setreuid %u: %.100s", (u_int)uid, strerror(errno)); -#else -# ifndef SETEUID_BREAKS_SETUID - if (seteuid(uid) < 0) - fatal("seteuid %u: %.100s", (u_int)uid, strerror(errno)); -# endif - if (setuid(uid) < 0) - fatal("setuid %u: %.100s", (u_int)uid, strerror(errno)); -#endif #ifndef HAVE_CYGWIN /* Try restoration of UID if changed (test clearing of saved uid) */ @@ -210,8 +199,10 @@ restore_uid(void) void permanently_set_uid(struct passwd *pw) { +#ifndef HAVE_CYGWIN uid_t old_uid = getuid(); gid_t old_gid = getgid(); +#endif if (pw == NULL) fatal("permanently_set_uid: no user given"); @@ -220,18 +211,8 @@ permanently_set_uid(struct passwd *pw) debug("permanently_set_uid: %u/%u", (u_int)pw->pw_uid, (u_int)pw->pw_gid); -#if defined(HAVE_SETRESGID) && !defined(BROKEN_SETRESGID) if (setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) < 0) fatal("setresgid %u: %.100s", (u_int)pw->pw_gid, strerror(errno)); -#elif defined(HAVE_SETREGID) && !defined(BROKEN_SETREGID) - if (setregid(pw->pw_gid, pw->pw_gid) < 0) - fatal("setregid %u: %.100s", (u_int)pw->pw_gid, strerror(errno)); -#else - if (setegid(pw->pw_gid) < 0) - fatal("setegid %u: %.100s", (u_int)pw->pw_gid, strerror(errno)); - if (setgid(pw->pw_gid) < 0) - fatal("setgid %u: %.100s", (u_int)pw->pw_gid, strerror(errno)); -#endif #ifdef __APPLE__ /* @@ -243,20 +224,8 @@ permanently_set_uid(struct passwd *pw) pw->pw_name, (u_int)pw->pw_gid, strerror(errno)); #endif -#if defined(HAVE_SETRESUID) && !defined(BROKEN_SETRESUID) if (setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid) < 0) fatal("setresuid %u: %.100s", (u_int)pw->pw_uid, strerror(errno)); -#elif defined(HAVE_SETREUID) && !defined(BROKEN_SETREUID) - if (setreuid(pw->pw_uid, pw->pw_uid) < 0) - fatal("setreuid %u: %.100s", (u_int)pw->pw_uid, strerror(errno)); -#else -# ifndef SETEUID_BREAKS_SETUID - if (seteuid(pw->pw_uid) < 0) - fatal("seteuid %u: %.100s", (u_int)pw->pw_uid, strerror(errno)); -# endif - if (setuid(pw->pw_uid) < 0) - fatal("setuid %u: %.100s", (u_int)pw->pw_uid, strerror(errno)); -#endif #ifndef HAVE_CYGWIN /* Try restoration of GID if changed (test clearing of saved gid) */ @@ -1,4 +1,4 @@ -/* $OpenBSD: umac.c,v 1.4 2011/10/19 10:39:48 djm Exp $ */ +/* $OpenBSD: umac.c,v 1.7 2013/07/22 05:00:17 djm Exp $ */ /* ----------------------------------------------------------------------- * * umac.c -- C Implementation UMAC Message Authentication @@ -52,7 +52,15 @@ /* --- User Switches ---------------------------------------------------- */ /* ---------------------------------------------------------------------- */ +#ifndef UMAC_OUTPUT_LEN #define UMAC_OUTPUT_LEN 8 /* Alowable: 4, 8, 12, 16 */ +#endif + +#if UMAC_OUTPUT_LEN != 4 && UMAC_OUTPUT_LEN != 8 && \ + UMAC_OUTPUT_LEN != 12 && UMAC_OUTPUT_LEN != 16 +# error UMAC_OUTPUT_LEN must be defined to 4, 8, 12 or 16 +#endif + /* #define FORCE_C_ONLY 1 ANSI C and 64-bit integers req'd */ /* #define AES_IMPLEMENTAION 1 1 = OpenSSL, 2 = Barreto, 3 = Gladman */ /* #define SSE2 0 Is SSE2 is available? */ @@ -124,13 +132,13 @@ typedef unsigned int UWORD; /* Register */ /* ---------------------------------------------------------------------- */ #if HAVE_SWAP32 -#define LOAD_UINT32_REVERSED(p) (swap32(*(UINT32 *)(p))) +#define LOAD_UINT32_REVERSED(p) (swap32(*(const UINT32 *)(p))) #define STORE_UINT32_REVERSED(p,v) (*(UINT32 *)(p) = swap32(v)) #else /* HAVE_SWAP32 */ -static UINT32 LOAD_UINT32_REVERSED(void *ptr) +static UINT32 LOAD_UINT32_REVERSED(const void *ptr) { - UINT32 temp = *(UINT32 *)ptr; + UINT32 temp = *(const UINT32 *)ptr; temp = (temp >> 24) | ((temp & 0x00FF0000) >> 8 ) | ((temp & 0x0000FF00) << 8 ) | (temp << 24); return (UINT32)temp; @@ -151,7 +159,7 @@ static void STORE_UINT32_REVERSED(void *ptr, UINT32 x) */ #if (__LITTLE_ENDIAN__) -#define LOAD_UINT32_LITTLE(ptr) (*(UINT32 *)(ptr)) +#define LOAD_UINT32_LITTLE(ptr) (*(const UINT32 *)(ptr)) #define STORE_UINT32_BIG(ptr,x) STORE_UINT32_REVERSED(ptr,x) #else #define LOAD_UINT32_LITTLE(ptr) LOAD_UINT32_REVERSED(ptr) @@ -176,7 +184,7 @@ typedef AES_KEY aes_int_key[1]; #define aes_encryption(in,out,int_key) \ AES_encrypt((u_char *)(in),(u_char *)(out),(AES_KEY *)int_key) #define aes_key_setup(key,int_key) \ - AES_set_encrypt_key((u_char *)(key),UMAC_KEY_LEN*8,int_key) + AES_set_encrypt_key((const u_char *)(key),UMAC_KEY_LEN*8,int_key) /* The user-supplied UMAC key is stretched using AES in a counter * mode to supply all random bits needed by UMAC. The kdf function takes @@ -232,7 +240,7 @@ static void pdf_init(pdf_ctx *pc, aes_int_key prf_key) aes_encryption(pc->nonce, pc->cache, pc->prf_key); } -static void pdf_gen_xor(pdf_ctx *pc, UINT8 nonce[8], UINT8 buf[8]) +static void pdf_gen_xor(pdf_ctx *pc, const UINT8 nonce[8], UINT8 buf[8]) { /* 'ndx' indicates that we'll be using the 0th or 1st eight bytes * of the AES output. If last time around we returned the ndx-1st @@ -246,19 +254,21 @@ static void pdf_gen_xor(pdf_ctx *pc, UINT8 nonce[8], UINT8 buf[8]) #elif (UMAC_OUTPUT_LEN > 8) #define LOW_BIT_MASK 0 #endif - - UINT8 tmp_nonce_lo[4]; + union { + UINT8 tmp_nonce_lo[4]; + UINT32 align; + } t; #if LOW_BIT_MASK != 0 int ndx = nonce[7] & LOW_BIT_MASK; #endif - *(UINT32 *)tmp_nonce_lo = ((UINT32 *)nonce)[1]; - tmp_nonce_lo[3] &= ~LOW_BIT_MASK; /* zero last bit */ + *(UINT32 *)t.tmp_nonce_lo = ((const UINT32 *)nonce)[1]; + t.tmp_nonce_lo[3] &= ~LOW_BIT_MASK; /* zero last bit */ - if ( (((UINT32 *)tmp_nonce_lo)[0] != ((UINT32 *)pc->nonce)[1]) || - (((UINT32 *)nonce)[0] != ((UINT32 *)pc->nonce)[0]) ) + if ( (((UINT32 *)t.tmp_nonce_lo)[0] != ((UINT32 *)pc->nonce)[1]) || + (((const UINT32 *)nonce)[0] != ((UINT32 *)pc->nonce)[0]) ) { - ((UINT32 *)pc->nonce)[0] = ((UINT32 *)nonce)[0]; - ((UINT32 *)pc->nonce)[1] = ((UINT32 *)tmp_nonce_lo)[0]; + ((UINT32 *)pc->nonce)[0] = ((const UINT32 *)nonce)[0]; + ((UINT32 *)pc->nonce)[1] = ((UINT32 *)t.tmp_nonce_lo)[0]; aes_encryption(pc->nonce, pc->cache, pc->prf_key); } @@ -325,7 +335,7 @@ typedef struct { #if (UMAC_OUTPUT_LEN == 4) -static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) +static void nh_aux(void *kp, const void *dp, void *hp, UINT32 dlen) /* NH hashing primitive. Previous (partial) hash result is loaded and * then stored via hp pointer. The length of the data pointed at by "dp", * "dlen", is guaranteed to be divisible by L1_PAD_BOUNDARY (32). Key @@ -335,7 +345,7 @@ static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) UINT64 h; UWORD c = dlen / 32; UINT32 *k = (UINT32 *)kp; - UINT32 *d = (UINT32 *)dp; + const UINT32 *d = (const UINT32 *)dp; UINT32 d0,d1,d2,d3,d4,d5,d6,d7; UINT32 k0,k1,k2,k3,k4,k5,k6,k7; @@ -360,7 +370,7 @@ static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) #elif (UMAC_OUTPUT_LEN == 8) -static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) +static void nh_aux(void *kp, const void *dp, void *hp, UINT32 dlen) /* Same as previous nh_aux, but two streams are handled in one pass, * reading and writing 16 bytes of hash-state per call. */ @@ -368,7 +378,7 @@ static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) UINT64 h1,h2; UWORD c = dlen / 32; UINT32 *k = (UINT32 *)kp; - UINT32 *d = (UINT32 *)dp; + const UINT32 *d = (const UINT32 *)dp; UINT32 d0,d1,d2,d3,d4,d5,d6,d7; UINT32 k0,k1,k2,k3,k4,k5,k6,k7, k8,k9,k10,k11; @@ -407,7 +417,7 @@ static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) #elif (UMAC_OUTPUT_LEN == 12) -static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) +static void nh_aux(void *kp, const void *dp, void *hp, UINT32 dlen) /* Same as previous nh_aux, but two streams are handled in one pass, * reading and writing 24 bytes of hash-state per call. */ @@ -415,7 +425,7 @@ static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) UINT64 h1,h2,h3; UWORD c = dlen / 32; UINT32 *k = (UINT32 *)kp; - UINT32 *d = (UINT32 *)dp; + const UINT32 *d = (const UINT32 *)dp; UINT32 d0,d1,d2,d3,d4,d5,d6,d7; UINT32 k0,k1,k2,k3,k4,k5,k6,k7, k8,k9,k10,k11,k12,k13,k14,k15; @@ -462,7 +472,7 @@ static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) #elif (UMAC_OUTPUT_LEN == 16) -static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) +static void nh_aux(void *kp, const void *dp, void *hp, UINT32 dlen) /* Same as previous nh_aux, but two streams are handled in one pass, * reading and writing 24 bytes of hash-state per call. */ @@ -470,7 +480,7 @@ static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) UINT64 h1,h2,h3,h4; UWORD c = dlen / 32; UINT32 *k = (UINT32 *)kp; - UINT32 *d = (UINT32 *)dp; + const UINT32 *d = (const UINT32 *)dp; UINT32 d0,d1,d2,d3,d4,d5,d6,d7; UINT32 k0,k1,k2,k3,k4,k5,k6,k7, k8,k9,k10,k11,k12,k13,k14,k15, @@ -531,7 +541,7 @@ static void nh_aux(void *kp, void *dp, void *hp, UINT32 dlen) /* ---------------------------------------------------------------------- */ -static void nh_transform(nh_ctx *hc, UINT8 *buf, UINT32 nbytes) +static void nh_transform(nh_ctx *hc, const UINT8 *buf, UINT32 nbytes) /* This function is a wrapper for the primitive NH hash functions. It takes * as argument "hc" the current hash context and a buffer which must be a * multiple of L1_PAD_BOUNDARY. The key passed to nh_aux is offset @@ -606,7 +616,7 @@ static void nh_init(nh_ctx *hc, aes_int_key prf_key) /* ---------------------------------------------------------------------- */ -static void nh_update(nh_ctx *hc, UINT8 *buf, UINT32 nbytes) +static void nh_update(nh_ctx *hc, const UINT8 *buf, UINT32 nbytes) /* Incorporate nbytes of data into a nh_ctx, buffer whatever is not an */ /* even multiple of HASH_BUF_BYTES. */ { @@ -701,7 +711,7 @@ static void nh_final(nh_ctx *hc, UINT8 *result) /* ---------------------------------------------------------------------- */ -static void nh(nh_ctx *hc, UINT8 *buf, UINT32 padded_len, +static void nh(nh_ctx *hc, const UINT8 *buf, UINT32 padded_len, UINT32 unpadded_len, UINT8 *result) /* All-in-one nh_update() and nh_final() equivalent. * Assumes that padded_len is divisible by L1_PAD_BOUNDARY and result is @@ -1039,7 +1049,7 @@ static int uhash_free(uhash_ctx_t ctx) #endif /* ---------------------------------------------------------------------- */ -static int uhash_update(uhash_ctx_t ctx, u_char *input, long len) +static int uhash_update(uhash_ctx_t ctx, const u_char *input, long len) /* Given len bytes of data, we parse it into L1_KEY_LEN chunks and * hash each one with NH, calling the polyhash on each NH output. */ @@ -1049,7 +1059,7 @@ static int uhash_update(uhash_ctx_t ctx, u_char *input, long len) UINT8 *nh_result = (UINT8 *)&result_buf; if (ctx->msg_len + len <= L1_KEY_LEN) { - nh_update(&ctx->hash, (UINT8 *)input, len); + nh_update(&ctx->hash, (const UINT8 *)input, len); ctx->msg_len += len; } else { @@ -1064,7 +1074,7 @@ static int uhash_update(uhash_ctx_t ctx, u_char *input, long len) /* bytes to complete the current nh_block. */ if (bytes_hashed) { bytes_remaining = (L1_KEY_LEN - bytes_hashed); - nh_update(&ctx->hash, (UINT8 *)input, bytes_remaining); + nh_update(&ctx->hash, (const UINT8 *)input, bytes_remaining); nh_final(&ctx->hash, nh_result); ctx->msg_len += bytes_remaining; poly_hash(ctx,(UINT32 *)nh_result); @@ -1074,7 +1084,7 @@ static int uhash_update(uhash_ctx_t ctx, u_char *input, long len) /* Hash directly from input stream if enough bytes */ while (len >= L1_KEY_LEN) { - nh(&ctx->hash, (UINT8 *)input, L1_KEY_LEN, + nh(&ctx->hash, (const UINT8 *)input, L1_KEY_LEN, L1_KEY_LEN, nh_result); ctx->msg_len += L1_KEY_LEN; len -= L1_KEY_LEN; @@ -1085,7 +1095,7 @@ static int uhash_update(uhash_ctx_t ctx, u_char *input, long len) /* pass remaining < L1_KEY_LEN bytes of input data to NH */ if (len) { - nh_update(&ctx->hash, (UINT8 *)input, len); + nh_update(&ctx->hash, (const UINT8 *)input, len); ctx->msg_len += len; } } @@ -1201,14 +1211,14 @@ int umac_delete(struct umac_ctx *ctx) if (ctx) { if (ALLOC_BOUNDARY) ctx = (struct umac_ctx *)ctx->free_ptr; - xfree(ctx); + free(ctx); } return (1); } /* ---------------------------------------------------------------------- */ -struct umac_ctx *umac_new(u_char key[]) +struct umac_ctx *umac_new(const u_char key[]) /* Dynamically allocate a umac_ctx struct, initialize variables, * generate subkeys from key. Align to 16-byte boundary. */ @@ -1225,7 +1235,7 @@ struct umac_ctx *umac_new(u_char key[]) ctx = (struct umac_ctx *)((u_char *)ctx + bytes_to_add); } ctx->free_ptr = octx; - aes_key_setup(key,prf_key); + aes_key_setup(key, prf_key); pdf_init(&ctx->pdf, prf_key); uhash_init(&ctx->hash, prf_key); } @@ -1235,18 +1245,18 @@ struct umac_ctx *umac_new(u_char key[]) /* ---------------------------------------------------------------------- */ -int umac_final(struct umac_ctx *ctx, u_char tag[], u_char nonce[8]) +int umac_final(struct umac_ctx *ctx, u_char tag[], const u_char nonce[8]) /* Incorporate any pending data, pad, and generate tag */ { uhash_final(&ctx->hash, (u_char *)tag); - pdf_gen_xor(&ctx->pdf, (UINT8 *)nonce, (UINT8 *)tag); + pdf_gen_xor(&ctx->pdf, (const UINT8 *)nonce, (UINT8 *)tag); return (1); } /* ---------------------------------------------------------------------- */ -int umac_update(struct umac_ctx *ctx, u_char *input, long len) +int umac_update(struct umac_ctx *ctx, const u_char *input, long len) /* Given len bytes of data, we parse it into L1_KEY_LEN chunks and */ /* hash each one, calling the PDF on the hashed output whenever the hash- */ /* output buffer is full. */ @@ -1,4 +1,4 @@ -/* $OpenBSD: umac.h,v 1.1 2007/06/07 19:37:34 pvalchev Exp $ */ +/* $OpenBSD: umac.h,v 1.3 2013/07/22 12:20:02 djm Exp $ */ /* ----------------------------------------------------------------------- * * umac.h -- C Implementation UMAC Message Authentication @@ -52,7 +52,7 @@ extern "C" { #endif -struct umac_ctx *umac_new(u_char key[]); +struct umac_ctx *umac_new(const u_char key[]); /* Dynamically allocate a umac_ctx struct, initialize variables, * generate subkeys from key. */ @@ -62,10 +62,10 @@ int umac_reset(struct umac_ctx *ctx); /* Reset a umac_ctx to begin authenicating a new message */ #endif -int umac_update(struct umac_ctx *ctx, u_char *input, long len); +int umac_update(struct umac_ctx *ctx, const u_char *input, long len); /* Incorporate len bytes pointed to by input into context ctx */ -int umac_final(struct umac_ctx *ctx, u_char tag[], u_char nonce[8]); +int umac_final(struct umac_ctx *ctx, u_char tag[], const u_char nonce[8]); /* Incorporate any pending data and the ctr value, and return tag. * This function returns error code if ctr < 0. */ @@ -116,6 +116,12 @@ int uhash(uhash_ctx_t ctx, #endif +/* matching umac-128 API, we reuse umac_ctx, since it's opaque */ +struct umac_ctx *umac128_new(const u_char key[]); +int umac128_update(struct umac_ctx *ctx, const u_char *input, long len); +int umac128_final(struct umac_ctx *ctx, u_char tag[], const u_char nonce[8]); +int umac128_delete(struct umac_ctx *ctx); + #ifdef __cplusplus } #endif @@ -1,4 +1,4 @@ -/* $OpenBSD: uuencode.c,v 1.26 2010/08/31 11:54:45 djm Exp $ */ +/* $OpenBSD: uuencode.c,v 1.27 2013/05/17 00:13:14 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * @@ -29,6 +29,7 @@ #include <netinet/in.h> #include <resolv.h> #include <stdio.h> +#include <stdlib.h> #include "xmalloc.h" #include "uuencode.h" @@ -67,7 +68,7 @@ uudecode(const char *src, u_char *target, size_t targsize) /* and remove trailing whitespace because __b64_pton needs this */ *p = '\0'; len = __b64_pton(encoded, target, targsize); - xfree(encoded); + free(encoded); return len; } @@ -90,5 +91,5 @@ dump_base64(FILE *fp, const u_char *data, u_int len) } if (i % 70 != 69) fprintf(fp, "\n"); - xfree(buf); + free(buf); } diff --git a/verify.c b/verify.c new file mode 100644 index 00000000..1671a413 --- /dev/null +++ b/verify.c @@ -0,0 +1,49 @@ +/* $OpenBSD: verify.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */ + +/* + * Public Domain, Author: Daniel J. Bernstein + * Copied from nacl-20110221/crypto_verify/32/ref/verify.c + */ + +#include "includes.h" + +#include "crypto_api.h" + +int crypto_verify_32(const unsigned char *x,const unsigned char *y) +{ + unsigned int differentbits = 0; +#define F(i) differentbits |= x[i] ^ y[i]; + F(0) + F(1) + F(2) + F(3) + F(4) + F(5) + F(6) + F(7) + F(8) + F(9) + F(10) + F(11) + F(12) + F(13) + F(14) + F(15) + F(16) + F(17) + F(18) + F(19) + F(20) + F(21) + F(22) + F(23) + F(24) + F(25) + F(26) + F(27) + F(28) + F(29) + F(30) + F(31) + return (1 & ((differentbits - 1) >> 8)) - 1; +} @@ -1,6 +1,6 @@ -/* $OpenBSD: version.h,v 1.64 2012/02/09 20:00:18 markus Exp $ */ +/* $OpenBSD: version.h,v 1.69 2014/01/16 07:32:00 djm Exp $ */ -#define SSH_VERSION "OpenSSH_6.0" +#define SSH_VERSION "OpenSSH_6.5" #define SSH_PORTABLE "p1" #define SSH_RELEASE SSH_VERSION SSH_PORTABLE @@ -1,4 +1,4 @@ -/* $OpenBSD: xmalloc.c,v 1.27 2006/08/03 03:34:42 deraadt Exp $ */ +/* $OpenBSD: xmalloc.c,v 1.29 2014/01/04 17:50:55 tedu Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -33,7 +33,7 @@ xmalloc(size_t size) fatal("xmalloc: zero size"); ptr = malloc(size); if (ptr == NULL) - fatal("xmalloc: out of memory (allocating %lu bytes)", (u_long) size); + fatal("xmalloc: out of memory (allocating %zu bytes)", size); return ptr; } @@ -48,8 +48,8 @@ xcalloc(size_t nmemb, size_t size) fatal("xcalloc: nmemb * size > SIZE_T_MAX"); ptr = calloc(nmemb, size); if (ptr == NULL) - fatal("xcalloc: out of memory (allocating %lu bytes)", - (u_long)(size * nmemb)); + fatal("xcalloc: out of memory (allocating %zu bytes)", + size * nmemb); return ptr; } @@ -68,19 +68,11 @@ xrealloc(void *ptr, size_t nmemb, size_t size) else new_ptr = realloc(ptr, new_size); if (new_ptr == NULL) - fatal("xrealloc: out of memory (new_size %lu bytes)", - (u_long) new_size); + fatal("xrealloc: out of memory (new_size %zu bytes)", + new_size); return new_ptr; } -void -xfree(void *ptr) -{ - if (ptr == NULL) - fatal("xfree: NULL pointer given as argument"); - free(ptr); -} - char * xstrdup(const char *str) { @@ -1,4 +1,4 @@ -/* $OpenBSD: xmalloc.h,v 1.13 2006/08/03 03:34:42 deraadt Exp $ */ +/* $OpenBSD: xmalloc.h,v 1.14 2013/05/17 00:13:14 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -19,7 +19,6 @@ void *xmalloc(size_t); void *xcalloc(size_t, size_t); void *xrealloc(void *, size_t, size_t); -void xfree(void *); char *xstrdup(const char *); int xasprintf(char **, const char *, ...) __attribute__((__format__ (printf, 2, 3))) |