#include "libudev.h"
#include "udev-util.h"
-static const char *opt_type = NULL; /* CRYPT_LUKS1, CRYPT_TCRYPT or CRYPT_PLAIN */
-static char *opt_cipher = NULL;
-static unsigned opt_key_size = 0;
-static int opt_key_slot = CRYPT_ANY_SLOT;
-static unsigned opt_keyfile_size = 0;
-static unsigned opt_keyfile_offset = 0;
-static char *opt_hash = NULL;
-static unsigned opt_tries = 3;
-static bool opt_readonly = false;
-static bool opt_verify = false;
-static bool opt_discards = false;
-static bool opt_tcrypt_hidden = false;
-static bool opt_tcrypt_system = false;
-static char **opt_tcrypt_keyfiles = NULL;
-static usec_t opt_timeout = 0;
+static const char *arg_type = NULL; /* CRYPT_LUKS1, CRYPT_TCRYPT or CRYPT_PLAIN */
+static char *arg_cipher = NULL;
+static unsigned arg_key_size = 0;
+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;
+static bool arg_discards = false;
+static bool arg_tcrypt_hidden = false;
+static bool arg_tcrypt_system = false;
+static char **arg_tcrypt_keyfiles = NULL;
+static usec_t arg_timeout = 0;
/* Options Debian's crypttab knows we don't:
if (!t)
return log_oom();
- free(opt_cipher);
- opt_cipher = t;
+ free(arg_cipher);
+ arg_cipher = t;
} else if (startswith(option, "size=")) {
- if (safe_atou(option+5, &opt_key_size) < 0) {
+ if (safe_atou(option+5, &arg_key_size) < 0) {
log_error("size= parse failure, ignoring.");
return 0;
}
+ if (arg_key_size % 8) {
+ log_error("size= not a multiple of 8, ignoring.");
+ return 0;
+ }
+
+ arg_key_size /= 8;
+
} else if (startswith(option, "key-slot=")) {
- opt_type = CRYPT_LUKS1;
- if (safe_atoi(option+9, &opt_key_slot) < 0) {
+ arg_type = CRYPT_LUKS1;
+ if (safe_atoi(option+9, &arg_key_slot) < 0) {
log_error("key-slot= parse failure, ignoring.");
return 0;
}
} else if (startswith(option, "tcrypt-keyfile=")) {
- opt_type = CRYPT_TCRYPT;
+ arg_type = CRYPT_TCRYPT;
if (path_is_absolute(option+15)) {
- if (strv_extend(&opt_tcrypt_keyfiles, option + 15) < 0)
+ if (strv_extend(&arg_tcrypt_keyfiles, option + 15) < 0)
return log_oom();
} else
log_error("Key file path '%s' is not absolute. Ignoring.", option+15);
} else if (startswith(option, "keyfile-size=")) {
- if (safe_atou(option+13, &opt_keyfile_size) < 0) {
+ if (safe_atou(option+13, &arg_keyfile_size) < 0) {
log_error("keyfile-size= parse failure, ignoring.");
return 0;
}
} else if (startswith(option, "keyfile-offset=")) {
- if (safe_atou(option+15, &opt_keyfile_offset) < 0) {
+ if (safe_atou(option+15, &arg_keyfile_offset) < 0) {
log_error("keyfile-offset= parse failure, ignoring.");
return 0;
}
if (!t)
return log_oom();
- free(opt_hash);
- opt_hash = t;
+ 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, &opt_tries) < 0) {
+ if (safe_atou(option+6, &arg_tries) < 0) {
log_error("tries= parse failure, ignoring.");
return 0;
}
- } else if (streq(option, "readonly") || streq(option, "read-only"))
- opt_readonly = true;
+ } else if (STR_IN_SET(option, "readonly", "read-only"))
+ arg_readonly = true;
else if (streq(option, "verify"))
- opt_verify = true;
- else if (streq(option, "allow-discards") || streq(option, "discard"))
- opt_discards = true;
+ arg_verify = true;
+ else if (STR_IN_SET(option, "allow-discards", "discard"))
+ arg_discards = true;
else if (streq(option, "luks"))
- opt_type = CRYPT_LUKS1;
+ arg_type = CRYPT_LUKS1;
else if (streq(option, "tcrypt"))
- opt_type = CRYPT_TCRYPT;
+ arg_type = CRYPT_TCRYPT;
else if (streq(option, "tcrypt-hidden")) {
- opt_type = CRYPT_TCRYPT;
- opt_tcrypt_hidden = true;
+ arg_type = CRYPT_TCRYPT;
+ arg_tcrypt_hidden = true;
} else if (streq(option, "tcrypt-system")) {
- opt_type = CRYPT_TCRYPT;
- opt_tcrypt_system = true;
- } else if (streq(option, "plain") ||
- streq(option, "swap") ||
- streq(option, "tmp"))
- opt_type = CRYPT_PLAIN;
+ arg_type = CRYPT_TCRYPT;
+ arg_tcrypt_system = true;
+ } else if (STR_IN_SET(option, "plain", "swap", "tmp"))
+ arg_type = CRYPT_PLAIN;
else if (startswith(option, "timeout=")) {
- if (parse_sec(option+8, &opt_timeout) < 0) {
+ if (parse_sec(option+8, &arg_timeout) < 0) {
log_error("timeout= parse failure, ignoring.");
return 0;
}
}
static int parse_options(const char *options) {
- char *state, *w;
+ const char *word, *state;
size_t l;
int r;
assert(options);
- FOREACH_WORD_SEPARATOR(w, l, options, ",", state) {
+ FOREACH_WORD_SEPARATOR(word, l, options, ",", state) {
_cleanup_free_ char *o;
- o = strndup(w, l);
+ o = strndup(word, l);
if (!o)
return -ENOMEM;
r = parse_one_option(o);
static char* disk_description(const char *path) {
- static const char name_fields[] = {
+ static const char name_fields[] =
"ID_PART_ENTRY_NAME\0"
"DM_NAME\0"
"ID_MODEL_FROM_DATABASE\0"
- "ID_MODEL\0"
- };
+ "ID_MODEL\0";
_cleanup_udev_unref_ struct udev *udev = NULL;
_cleanup_udev_device_unref_ struct udev_device *device = NULL;
int r;
char **p;
_cleanup_free_ char *text = NULL;
+ _cleanup_free_ char *escaped_name = NULL;
+ char *id;
assert(name);
assert(passwords);
if (asprintf(&text, "Please enter passphrase for disk %s!", name) < 0)
return log_oom();
- r = ask_password_auto(text, "drive-harddisk", until, accept_cached, passwords);
- if (r < 0) {
- log_error("Failed to query password: %s", strerror(-r));
- return r;
- }
+ escaped_name = cescape(name);
+ if (!escaped_name)
+ return log_oom();
+
+ id = strappenda("cryptsetup:", escaped_name);
- if (opt_verify) {
+ r = ask_password_auto(text, "drive-harddisk", id, until, accept_cached, 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);
if (asprintf(&text, "Please enter passphrase for disk %s! (verification)", name) < 0)
return log_oom();
- r = ask_password_auto(text, "drive-harddisk", until, false, &passwords2);
- if (r < 0) {
- log_error("Failed to query verification password: %s", strerror(-r));
- return r;
- }
+ id = strappenda("cryptsetup-verification:", escaped_name);
+
+ r = ask_password_auto(text, "drive-harddisk", id, until, false, &passwords2);
+ if (r < 0)
+ return log_error_errno(r, "Failed to query verification password: %m");
assert(strv_length(passwords2) == 1);
STRV_FOREACH(p, *passwords) {
char *c;
- if (strlen(*p)+1 >= opt_key_size)
+ if (strlen(*p)+1 >= arg_key_size)
continue;
/* Pad password if necessary */
- if (!(c = new(char, opt_key_size)))
+ if (!(c = new(char, arg_key_size)))
return log_oom();
- strncpy(c, *p, opt_key_size);
+ strncpy(c, *p, arg_key_size);
free(*p);
*p = c;
}
_cleanup_free_ char *passphrase = NULL;
struct crypt_params_tcrypt params = {
.flags = CRYPT_TCRYPT_LEGACY_MODES,
- .keyfiles = (const char **)opt_tcrypt_keyfiles,
- .keyfiles_count = strv_length(opt_tcrypt_keyfiles)
+ .keyfiles = (const char **)arg_tcrypt_keyfiles,
+ .keyfiles_count = strv_length(arg_tcrypt_keyfiles)
};
assert(cd);
assert(name);
- assert(key_file || passwords);
+ assert(key_file || (passwords && passwords[0]));
- if (opt_tcrypt_hidden)
+ if (arg_tcrypt_hidden)
params.flags |= CRYPT_TCRYPT_HIDDEN_HEADER;
- if (opt_tcrypt_system)
+ if (arg_tcrypt_system)
params.flags |= CRYPT_TCRYPT_SYSTEM_HEADER;
if (key_file) {
r = read_one_line_file(key_file, &passphrase);
if (r < 0) {
- log_error("Failed to read password file '%s': %s", key_file, strerror(-r));
+ log_error_errno(r, "Failed to read password file '%s': %m", key_file);
return -EAGAIN;
}
return r;
}
- return crypt_activate_by_volume_key(cd, name, NULL, 0, flags);;
+ return crypt_activate_by_volume_key(cd, name, NULL, 0, flags);
}
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;
assert(name);
assert(key_file || passwords);
- if (!opt_type || streq(opt_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 ((!opt_type && r < 0) || streq_ptr(opt_type, CRYPT_PLAIN)) {
+ if ((!arg_type && r < 0) || streq_ptr(arg_type, CRYPT_PLAIN)) {
struct crypt_params_plain params = {};
const char *cipher, *cipher_mode;
_cleanup_free_ char *truncated_cipher = NULL;
- if (opt_hash) {
+ if (arg_hash) {
/* plain isn't a real hash type. it just means "use no hash" */
- if (!streq(opt_hash, "plain"))
- params.hash = opt_hash;
- } else
+ if (!streq(arg_hash, "plain"))
+ params.hash = arg_hash;
+ } else if (!key_file)
+ /* for CRYPT_PLAIN, the behaviour of cryptsetup
+ * package is to not hash when a key file is provided */
params.hash = "ripemd160";
- if (opt_cipher) {
+ if (arg_cipher) {
size_t l;
- l = strcspn(opt_cipher, "-");
- truncated_cipher = strndup(opt_cipher, l);
+ l = strcspn(arg_cipher, "-");
+ truncated_cipher = strndup(arg_cipher, l);
if (!truncated_cipher)
return log_oom();
cipher = truncated_cipher;
- cipher_mode = opt_cipher[l] ? opt_cipher+l+1 : "plain";
+ cipher_mode = arg_cipher[l] ? arg_cipher+l+1 : "plain";
} else {
cipher = "aes";
cipher_mode = "cbc-essiv:sha256";
/* for CRYPT_PLAIN limit reads
* from keyfile to key length, and
* ignore keyfile-size */
- opt_keyfile_size = opt_key_size / 8;
+ arg_keyfile_size = arg_key_size;
/* In contrast to what the name
* crypt_setup() might suggest this
* parameters when used for plain
* mode. */
r = crypt_format(cd, CRYPT_PLAIN, cipher, cipher_mode,
- NULL, NULL, opt_keyfile_size, ¶ms);
+ NULL, NULL, arg_keyfile_size, ¶ms);
/* hash == NULL implies the user passed "plain" */
pass_volume_key = (params.hash == NULL);
}
- if (r < 0) {
- log_error("Loading of cryptographic parameters failed: %s", strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_error_errno(r, "Loading of cryptographic parameters failed: %m");
log_info("Set cipher %s, mode %s, key size %i bits for device %s.",
crypt_get_cipher(cd),
crypt_get_device_name(cd));
if (key_file) {
- r = crypt_activate_by_keyfile_offset(cd, name, opt_key_slot,
- key_file, opt_keyfile_size,
- opt_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("Failed to activate with key file '%s': %s", key_file, strerror(-r));
+ log_error_errno(r, "Failed to activate with key file '%s': %m", key_file);
return -EAGAIN;
}
} else {
STRV_FOREACH(p, passwords) {
if (pass_volume_key)
- r = crypt_activate_by_volume_key(cd, name, *p, opt_key_size, flags);
+ r = crypt_activate_by_volume_key(cd, name, *p, arg_key_size, flags);
else
- r = crypt_activate_by_passphrase(cd, name, opt_key_slot, *p, strlen(*p), flags);
+ r = crypt_activate_by_passphrase(cd, name, arg_key_slot, *p, strlen(*p), flags);
if (r >= 0)
break;
description = NULL;
}
+ k = 0;
if (mount_point && description)
- asprintf(&name_buffer, "%s (%s) on %s", description, argv[2], mount_point);
+ k = asprintf(&name_buffer, "%s (%s) on %s", description, argv[2], mount_point);
else if (mount_point)
- asprintf(&name_buffer, "%s on %s", argv[2], mount_point);
+ k = asprintf(&name_buffer, "%s on %s", argv[2], mount_point);
else if (description)
- asprintf(&name_buffer, "%s (%s)", description, argv[2]);
+ k = asprintf(&name_buffer, "%s (%s)", description, argv[2]);
+ if (k < 0) {
+ log_oom();
+ goto finish;
+ }
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("crypt_init() failed: %s", strerror(-k));
+ log_error_errno(k, "crypt_init() failed: %m");
goto finish;
}
goto finish;
}
- if (opt_readonly)
+ if (arg_readonly)
flags |= CRYPT_ACTIVATE_READONLY;
- if (opt_discards)
+ if (arg_discards)
flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS;
- if (opt_timeout > 0)
- until = now(CLOCK_MONOTONIC) + opt_timeout;
+ if (arg_timeout > 0)
+ until = now(CLOCK_MONOTONIC) + arg_timeout;
else
until = 0;
- opt_key_size = (opt_key_size > 0 ? opt_key_size : 256);
+ arg_key_size = (arg_key_size > 0 ? arg_key_size : (256 / 8));
if (key_file) {
struct stat st;
log_warning("Key file %s is world-readable. This is not a good idea!", key_file);
}
- for (tries = 0; opt_tries == 0 || tries < opt_tries; tries++) {
+ for (tries = 0; arg_tries == 0 || tries < arg_tries; tries++) {
_cleanup_strv_free_ char **passwords = NULL;
if (!key_file) {
- k = get_password(name, until, tries == 0 && !opt_verify, &passwords);
+ k = get_password(name, until, tries == 0 && !arg_verify, &passwords);
if (k == -EAGAIN)
continue;
else if (k < 0)
goto finish;
}
- if (streq_ptr(opt_type, CRYPT_TCRYPT))
+ 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) {
key_file = NULL;
continue;
} else if (k != -EPERM) {
- log_error("Failed to activate: %s", strerror(-k));
+ log_error_errno(k, "Failed to activate: %m");
goto finish;
}
log_warning("Invalid passphrase.");
}
- if (opt_tries != 0 && tries >= opt_tries) {
+ if (arg_tries != 0 && tries >= arg_tries) {
log_error("Too many attempts; giving up.");
r = EXIT_FAILURE;
goto finish;
k = crypt_init_by_name(&cd, argv[2]);
if (k) {
- log_error("crypt_init() failed: %s", strerror(-k));
+ log_error_errno(k, "crypt_init() failed: %m");
goto finish;
}
k = crypt_deactivate(cd, argv[2]);
if (k < 0) {
- log_error("Failed to deactivate: %s", strerror(-k));
+ log_error_errno(k, "Failed to deactivate: %m");
goto finish;
}
if (cd)
crypt_free(cd);
- free(opt_cipher);
- free(opt_hash);
- strv_free(opt_tcrypt_keyfiles);
+ free(arg_cipher);
+ free(arg_hash);
+ free(arg_header);
+ strv_free(arg_tcrypt_keyfiles);
return r;
}
~ianmdlvl / elogind.git / blobdiff