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authorDamien Miller <djm@mindrot.org>2012-12-03 09:49:52 +1100
committerDamien Miller <djm@mindrot.org>2012-12-03 09:49:52 +1100
commitcb6b68b209d8868a94a30b1a634beb1a65cb5265 (patch)
tree049f0251f5ee3f2cb2fb236ba4ee5eb37b356351
parentcf6ef137b516a9f739b6e899ec5ef7306835530b (diff)
downloadopenssh-git-cb6b68b209d8868a94a30b1a634beb1a65cb5265.tar.gz
- 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@
-rw-r--r--ChangeLog6
-rw-r--r--ssh_config.56
-rw-r--r--sshconnect2.c29
3 files changed, 36 insertions, 5 deletions
diff --git a/ChangeLog b/ChangeLog
index 09a095f1..199bca16 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,12 @@
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@
20121114
- (djm) OpenBSD CVS Sync
diff --git a/ssh_config.5 b/ssh_config.5
index d3e801df..09a3cf03 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 1.158 2012/10/04 13:21:50 markus Exp $
-.Dd $Mdocdate: October 4 2012 $
+.\" $OpenBSD: ssh_config.5,v 1.159 2012/12/02 20:26:10 djm Exp $
+.Dd $Mdocdate: December 2 2012 $
.Dt SSH_CONFIG 5
.Os
.Sh NAME
@@ -602,6 +602,8 @@ 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
diff --git a/sshconnect2.c b/sshconnect2.c
index 7c369d74..6791ea34 100644
--- a/sshconnect2.c
+++ b/sshconnect2.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sshconnect2.c,v 1.189 2012/06/22 12:30:26 dtucker Exp $ */
+/* $OpenBSD: sshconnect2.c,v 1.190 2012/12/02 20:26:11 djm Exp $ */
/*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
* Copyright (c) 2008 Damien Miller. All rights reserved.
@@ -1359,7 +1359,7 @@ 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 +1371,7 @@ 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)
@@ -1384,6 +1384,29 @@ pubkey_prepare(Authctxt *authctxt)
id->filename = xstrdup(options.identity_files[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);