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author | Martin Pitt <martin.pitt@ubuntu.com> | 2015-02-17 11:22:16 +0100 |
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committer | Martin Pitt <martin.pitt@ubuntu.com> | 2015-02-17 11:22:16 +0100 |
commit | e735f4d4eafc8c8c296cefc8228cf91c3fcfe822 (patch) | |
tree | 6626785ac2b212cc52282387a0a0d8a20fee8db2 /src/cryptsetup/cryptsetup.c | |
parent | f47781d88ca6bf69d6b1dd0703b2b283482e5c09 (diff) | |
download | systemd-e735f4d4eafc8c8c296cefc8228cf91c3fcfe822.tar.gz |
Imported Upstream version 219
Diffstat (limited to 'src/cryptsetup/cryptsetup.c')
-rw-r--r-- | src/cryptsetup/cryptsetup.c | 52 |
1 files changed, 45 insertions, 7 deletions
diff --git a/src/cryptsetup/cryptsetup.c b/src/cryptsetup/cryptsetup.c index 21b1260f1b..3f613d9b65 100644 --- a/src/cryptsetup/cryptsetup.c +++ b/src/cryptsetup/cryptsetup.c @@ -43,6 +43,7 @@ static int arg_key_slot = CRYPT_ANY_SLOT; static unsigned arg_keyfile_size = 0; static unsigned arg_keyfile_offset = 0; static char *arg_hash = NULL; +static char *arg_header = NULL; static unsigned arg_tries = 3; static bool arg_readonly = false; static bool arg_verify = false; @@ -68,7 +69,7 @@ static int parse_one_option(const char *option) { assert(option); /* Handled outside of this tool */ - if (streq(option, "noauto") || streq(option, "nofail")) + if (STR_IN_SET(option, "noauto", "auto", "nofail", "fail")) return 0; if (startswith(option, "cipher=")) { @@ -136,6 +137,23 @@ static int parse_one_option(const char *option) { free(arg_hash); arg_hash = t; + } else if (startswith(option, "header=")) { + arg_type = CRYPT_LUKS1; + + if (!path_is_absolute(option+7)) { + log_error("Header path '%s' is not absolute, refusing.", option+7); + return -EINVAL; + } + + if (arg_header) { + log_error("Duplicate header= options, refusing."); + return -EINVAL; + } + + arg_header = strdup(option+7); + if (!arg_header) + return log_oom(); + } else if (startswith(option, "tries=")) { if (safe_atou(option+6, &arg_tries) < 0) { @@ -277,7 +295,7 @@ static int get_password(const char *name, usec_t until, bool accept_cached, char if (!escaped_name) return log_oom(); - id = strappenda("cryptsetup:", escaped_name); + id = strjoina("cryptsetup:", escaped_name); r = ask_password_auto(text, "drive-harddisk", id, until, accept_cached, passwords); if (r < 0) @@ -291,7 +309,7 @@ static int get_password(const char *name, usec_t until, bool accept_cached, char if (asprintf(&text, "Please enter passphrase for disk %s! (verification)", name) < 0) return log_oom(); - id = strappenda("cryptsetup-verification:", escaped_name); + id = strjoina("cryptsetup-verification:", escaped_name); r = ask_password_auto(text, "drive-harddisk", id, until, false, &passwords2); if (r < 0) @@ -375,6 +393,7 @@ static int attach_tcrypt(struct crypt_device *cd, static int attach_luks_or_plain(struct crypt_device *cd, const char *name, const char *key_file, + const char *data_device, char **passwords, uint32_t flags) { int r = 0; @@ -384,8 +403,16 @@ static int attach_luks_or_plain(struct crypt_device *cd, assert(name); assert(key_file || passwords); - if (!arg_type || streq(arg_type, CRYPT_LUKS1)) + if (!arg_type || streq(arg_type, CRYPT_LUKS1)) { r = crypt_load(cd, CRYPT_LUKS1, NULL); + if (r < 0) { + log_error("crypt_load() failed on device %s.\n", crypt_get_device_name(cd)); + return r; + } + + if (data_device) + r = crypt_set_data_device(cd, data_device); + } if ((!arg_type && r < 0) || streq_ptr(arg_type, CRYPT_PLAIN)) { struct crypt_params_plain params = {}; @@ -559,7 +586,12 @@ int main(int argc, char *argv[]) { } name = name_buffer ? name_buffer : argv[2]; - k = crypt_init(&cd, argv[3]); + if (arg_header) { + log_debug("LUKS header: %s", arg_header); + k = crypt_init(&cd, arg_header); + } else + k = crypt_init(&cd, argv[3]); + if (k) { log_error_errno(k, "crypt_init() failed: %m"); goto finish; @@ -592,7 +624,7 @@ int main(int argc, char *argv[]) { /* Ideally we'd do this on the open fd, but since this is just a * warning it's OK to do this in two steps. */ - if (stat(key_file, &st) >= 0 && (st.st_mode & 0005)) + if (stat(key_file, &st) >= 0 && S_ISREG(st.st_mode) && (st.st_mode & 0005)) log_warning("Key file %s is world-readable. This is not a good idea!", key_file); } @@ -610,7 +642,12 @@ int main(int argc, char *argv[]) { if (streq_ptr(arg_type, CRYPT_TCRYPT)) k = attach_tcrypt(cd, argv[2], key_file, passwords, flags); else - k = attach_luks_or_plain(cd, argv[2], key_file, passwords, flags); + k = attach_luks_or_plain(cd, + argv[2], + key_file, + arg_header ? argv[3] : NULL, + passwords, + flags); if (k >= 0) break; else if (k == -EAGAIN) { @@ -661,6 +698,7 @@ finish: free(arg_cipher); free(arg_hash); + free(arg_header); strv_free(arg_tcrypt_keyfiles); return r; |