diff options
Diffstat (limited to 'src/cryptsetup/cryptsetup.c')
| -rw-r--r-- | src/cryptsetup/cryptsetup.c | 71 |
1 files changed, 43 insertions, 28 deletions
diff --git a/src/cryptsetup/cryptsetup.c b/src/cryptsetup/cryptsetup.c index cc03ad3ca8..c9be17446b 100644 --- a/src/cryptsetup/cryptsetup.c +++ b/src/cryptsetup/cryptsetup.c @@ -312,15 +312,16 @@ static char *disk_mount_point(const char *label) { return NULL; } -static int get_password(const char *vol, const char *src, usec_t until, bool accept_cached, char ***passwords) { +static int get_password(const char *vol, const char *src, usec_t until, bool accept_cached, char ***ret) { _cleanup_free_ char *description = NULL, *name_buffer = NULL, *mount_point = NULL, *maj_min = NULL, *text = NULL, *escaped_name = NULL; + _cleanup_strv_free_ char **passwords = NULL, **passwords2 = NULL; const char *name = NULL; char **p, *id; int r = 0; assert(vol); assert(src); - assert(passwords); + assert(ret); description = disk_description(src); mount_point = disk_mount_point(vol); @@ -360,57 +361,74 @@ static int get_password(const char *vol, const char *src, usec_t until, bool acc id = strjoina("cryptsetup:", escaped_name); - r = ask_password_auto(text, "drive-harddisk", id, "cryptsetup", until, ASK_PASSWORD_PUSH_CACHE|(accept_cached ? ASK_PASSWORD_ACCEPT_CACHED : 0), passwords); + r = ask_password_auto(text, "drive-harddisk", id, "cryptsetup", until, ASK_PASSWORD_PUSH_CACHE|(accept_cached ? ASK_PASSWORD_ACCEPT_CACHED : 0), &passwords); if (r < 0) return log_error_errno(r, "Failed to query password: %m"); if (arg_verify) { - _cleanup_strv_free_ char **passwords2 = NULL; + assert(strv_length(passwords) == 1); - assert(strv_length(*passwords) == 1); - - if (asprintf(&text, "Please enter passphrase for disk %s! (verification)", name) < 0) - return log_oom(); + if (asprintf(&text, "Please enter passphrase for disk %s! (verification)", name) < 0) { + r = log_oom(); + goto finish; + } id = strjoina("cryptsetup-verification:", escaped_name); r = ask_password_auto(text, "drive-harddisk", id, "cryptsetup", until, ASK_PASSWORD_PUSH_CACHE, &passwords2); - if (r < 0) - return log_error_errno(r, "Failed to query verification password: %m"); + if (r < 0) { + log_error_errno(r, "Failed to query verification password: %m"); + goto finish; + } assert(strv_length(passwords2) == 1); - if (!streq(*passwords[0], passwords2[0])) { + if (!streq(passwords[0], passwords2[0])) { log_warning("Passwords did not match, retrying."); - return -EAGAIN; + r = -EAGAIN; + goto finish; } } - strv_uniq(*passwords); + strv_uniq(passwords); - STRV_FOREACH(p, *passwords) { + STRV_FOREACH(p, passwords) { char *c; if (strlen(*p)+1 >= arg_key_size) continue; /* Pad password if necessary */ - if (!(c = new(char, arg_key_size))) - return log_oom(); + c = new(char, arg_key_size); + if (!c) { + r = -ENOMEM; + goto finish; + } strncpy(c, *p, arg_key_size); free(*p); *p = c; } - return 0; + *ret = passwords; + passwords = NULL; + + r = 0; + +finish: + strv_erase(passwords); + strv_erase(passwords2); + + return r; } -static int attach_tcrypt(struct crypt_device *cd, - const char *name, - const char *key_file, - char **passwords, - uint32_t flags) { +static int attach_tcrypt( + struct crypt_device *cd, + const char *name, + const char *key_file, + char **passwords, + uint32_t flags) { + int r = 0; _cleanup_free_ char *passphrase = NULL; struct crypt_params_tcrypt params = { @@ -520,8 +538,7 @@ static int attach_luks_or_plain(struct crypt_device *cd, * it just configures encryption * parameters when used for plain * mode. */ - r = crypt_format(cd, CRYPT_PLAIN, cipher, cipher_mode, - NULL, NULL, arg_keyfile_size, ¶ms); + r = crypt_format(cd, CRYPT_PLAIN, cipher, cipher_mode, NULL, NULL, arg_keyfile_size, ¶ms); /* hash == NULL implies the user passed "plain" */ pass_volume_key = (params.hash == NULL); @@ -537,9 +554,7 @@ static int attach_luks_or_plain(struct crypt_device *cd, crypt_get_device_name(cd)); if (key_file) { - r = crypt_activate_by_keyfile_offset(cd, name, arg_key_slot, - key_file, arg_keyfile_size, - arg_keyfile_offset, flags); + r = crypt_activate_by_keyfile_offset(cd, name, arg_key_slot, key_file, arg_keyfile_size, arg_keyfile_offset, flags); if (r < 0) { log_error_errno(r, "Failed to activate with key file '%s': %m", key_file); return -EAGAIN; @@ -631,7 +646,6 @@ int main(int argc, char *argv[]) { 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; @@ -688,6 +702,7 @@ int main(int argc, char *argv[]) { arg_header ? argv[3] : NULL, passwords, flags); + strv_erase(passwords); if (k >= 0) break; else if (k == -EAGAIN) { |