2 * libcryptsetup - cryptsetup library
4 * Copyright (C) 2004, Christophe Saout <christophe@saout.de>
5 * Copyright (C) 2004-2007, Clemens Fruhwirth <clemens@endorphin.org>
6 * Copyright (C) 2009-2012, Red Hat, Inc. All rights reserved.
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
29 #include "libcryptsetup.h"
33 #include "crypto_backend.h"
39 char *metadata_device;
43 struct volume_key *volume_key;
45 uint64_t iteration_time;
50 /* used in CRYPT_LUKS1 */
52 uint64_t PBKDF2_per_sec;
54 /* used in CRYPT_PLAIN */
55 struct crypt_params_plain plain_hdr;
57 char *plain_cipher_mode;
59 unsigned int plain_key_size;
61 /* used in CRYPT_LOOPAES */
62 struct crypt_params_loopaes loopaes_hdr;
64 char *loopaes_cipher_mode;
66 unsigned int loopaes_key_size;
68 /* callbacks definitions */
69 void (*log)(int level, const char *msg, void *usrptr);
71 int (*confirm)(const char *msg, void *usrptr);
73 int (*password)(const char *msg, char *buf, size_t length, void *usrptr);
74 void *password_usrptr;
76 /* last error message */
77 char error[MAX_ERROR_LENGTH];
81 /* FIXME: not thread safe, remove this later */
82 static char global_error[MAX_ERROR_LENGTH] = {0};
85 static void (*_default_log)(int level, const char *msg, void *usrptr) = NULL;
86 static int _debug_level = 0;
88 void crypt_set_debug_level(int level)
93 int crypt_get_debug_level(void)
98 static void crypt_set_error(struct crypt_device *cd, const char *error)
100 size_t size = strlen(error);
102 /* Set global error, ugly hack... */
103 strncpy(global_error, error, MAX_ERROR_LENGTH - 2);
104 if (size < MAX_ERROR_LENGTH && global_error[size - 1] == '\n')
105 global_error[size - 1] = '\0';
107 /* Set error string per context */
109 strncpy(cd->error, error, MAX_ERROR_LENGTH - 2);
110 if (size < MAX_ERROR_LENGTH && cd->error[size - 1] == '\n')
111 cd->error[size - 1] = '\0';
115 void crypt_log(struct crypt_device *cd, int level, const char *msg)
118 cd->log(level, msg, cd->log_usrptr);
119 else if (_default_log)
120 _default_log(level, msg, NULL);
122 if (level == CRYPT_LOG_ERROR)
123 crypt_set_error(cd, msg);
126 __attribute__((format(printf, 5, 6)))
127 void logger(struct crypt_device *cd, int level, const char *file,
128 int line, const char *format, ...)
133 va_start(argp, format);
135 if (vasprintf(&target, format, argp) > 0 ) {
137 crypt_log(cd, level, target);
139 } else if (_debug_level)
140 printf("# %s:%d %s\n", file ?: "?", line, target);
142 } else if (_debug_level)
143 printf("# %s\n", target);
151 static const char *mdata_device(struct crypt_device *cd)
153 return cd->metadata_device ?: cd->device;
156 static int init_crypto(struct crypt_device *ctx)
160 r = crypt_random_init(ctx);
162 log_err(ctx, _("Cannot initialize crypto RNG backend.\n"));
166 r = crypt_backend_init(ctx);
168 log_err(ctx, _("Cannot initialize crypto backend.\n"));
173 static int process_key(struct crypt_device *cd, const char *hash_name,
174 size_t key_size, const char *pass, size_t passLen,
175 struct volume_key **vk)
182 *vk = crypt_alloc_volume_key(key_size, NULL);
187 r = crypt_plain_hash(cd, hash_name, (*vk)->key, key_size, pass, passLen);
190 log_err(cd, _("Hash algorithm %s not supported.\n"),
193 log_err(cd, _("Key processing error (using hash %s).\n"),
195 crypt_free_volume_key(*vk);
199 } else if (passLen > key_size) {
200 memcpy((*vk)->key, pass, key_size);
202 memcpy((*vk)->key, pass, passLen);
208 static int isPLAIN(const char *type)
210 return (type && !strcmp(CRYPT_PLAIN, type));
213 static int isLUKS(const char *type)
215 return (type && !strcmp(CRYPT_LUKS1, type));
218 static int isLOOPAES(const char *type)
220 return (type && !strcmp(CRYPT_LOOPAES, type));
223 /* keyslot helpers */
224 static int keyslot_verify_or_find_empty(struct crypt_device *cd, int *keyslot)
226 if (*keyslot == CRYPT_ANY_SLOT) {
227 *keyslot = LUKS_keyslot_find_empty(&cd->hdr);
229 log_err(cd, _("All key slots full.\n"));
234 switch (LUKS_keyslot_info(&cd->hdr, *keyslot)) {
235 case CRYPT_SLOT_INVALID:
236 log_err(cd, _("Key slot %d is invalid, please select between 0 and %d.\n"),
237 *keyslot, LUKS_NUMKEYS - 1);
239 case CRYPT_SLOT_INACTIVE:
242 log_err(cd, _("Key slot %d is full, please select another one.\n"),
251 * compares UUIDs returned by device-mapper (striped by cryptsetup) and uuid in header
253 static int crypt_uuid_cmp(const char *dm_uuid, const char *hdr_uuid)
258 if (!dm_uuid || !hdr_uuid)
261 str = strchr(dm_uuid, '-');
265 for (i = 0, j = 1; hdr_uuid[i]; i++) {
266 if (hdr_uuid[i] == '-')
269 if (!str[j] || str[j] == '-')
272 if (str[j] != hdr_uuid[i])
280 int PLAIN_activate(struct crypt_device *cd,
282 struct volume_key *vk,
287 char *dm_cipher = NULL;
288 struct crypt_dm_active_device dmd = {
289 .device = crypt_get_device_name(cd),
291 .uuid = crypt_get_uuid(cd),
293 .offset = crypt_get_data_offset(cd),
294 .iv_offset = crypt_get_iv_offset(cd),
299 r = device_check_and_adjust(cd, dmd.device,
300 (dmd.flags & CRYPT_ACTIVATE_SHARED) ? DEV_SHARED : DEV_EXCL,
301 &dmd.size, &dmd.offset, &flags);
305 if (crypt_get_cipher_mode(cd))
306 r = asprintf(&dm_cipher, "%s-%s", crypt_get_cipher(cd), crypt_get_cipher_mode(cd));
308 r = asprintf(&dm_cipher, "%s", crypt_get_cipher(cd));
312 dmd.cipher = dm_cipher;
313 log_dbg("Trying to activate PLAIN device %s using cipher %s.", name, dmd.cipher);
315 r = dm_create_device(name, CRYPT_PLAIN, &dmd, 0);
318 if (!cd->plain_uuid && dm_query_device(name, DM_ACTIVE_UUID, &dmd) >= 0)
319 cd->plain_uuid = CONST_CAST(char*)dmd.uuid;
325 int crypt_confirm(struct crypt_device *cd, const char *msg)
327 if (!cd || !cd->confirm)
330 return cd->confirm(msg, cd->confirm_usrptr);
333 static int key_from_terminal(struct crypt_device *cd, char *msg, char **key,
334 size_t *key_len, int force_verify)
340 if(!msg && asprintf(&prompt, _("Enter passphrase for %s: "),
341 cd->backing_file ?: crypt_get_device_name(cd)) < 0)
348 *key = crypt_safe_alloc(DEFAULT_PASSPHRASE_SIZE_MAX);
353 r = cd->password(msg, *key, DEFAULT_PASSPHRASE_SIZE_MAX,
354 cd->password_usrptr);
356 crypt_safe_free(*key);
361 r = crypt_get_key(msg, key, key_len, 0, 0, NULL, cd->timeout,
362 (force_verify || cd->password_verify), cd);
365 return (r < 0) ? r: 0;
368 static int volume_key_by_terminal_passphrase(struct crypt_device *cd, int keyslot,
369 struct volume_key **vk)
371 char *passphrase_read = NULL;
372 size_t passphrase_size_read;
373 int r = -EINVAL, eperm = 0, tries = cd->tries;
377 crypt_free_volume_key(*vk);
380 r = key_from_terminal(cd, NULL, &passphrase_read,
381 &passphrase_size_read, 0);
382 /* Continue if it is just passphrase verify mismatch */
388 r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase_read,
389 passphrase_size_read, &cd->hdr, vk, cd);
392 crypt_safe_free(passphrase_read);
393 passphrase_read = NULL;
394 } while (r == -EPERM && (--tries > 0));
397 crypt_free_volume_key(*vk);
400 /* Report wrong passphrase if at least one try failed */
401 if (eperm && r == -EPIPE)
405 crypt_safe_free(passphrase_read);
409 static int key_from_file(struct crypt_device *cd, char *msg,
410 char **key, size_t *key_len,
411 const char *key_file, size_t key_offset,
414 return crypt_get_key(msg, key, key_len, key_offset, key_size, key_file,
418 void crypt_set_log_callback(struct crypt_device *cd,
419 void (*log)(int level, const char *msg, void *usrptr),
426 cd->log_usrptr = usrptr;
430 void crypt_set_confirm_callback(struct crypt_device *cd,
431 int (*confirm)(const char *msg, void *usrptr),
434 cd->confirm = confirm;
435 cd->confirm_usrptr = usrptr;
438 void crypt_set_password_callback(struct crypt_device *cd,
439 int (*password)(const char *msg, char *buf, size_t length, void *usrptr),
442 cd->password = password;
443 cd->password_usrptr = usrptr;
446 static void _get_error(char *error, char *buf, size_t size)
448 if (!buf || size < 1)
451 strncpy(buf, error, size - 1);
452 buf[size - 1] = '\0';
458 void crypt_last_error(struct crypt_device *cd, char *buf, size_t size)
461 return _get_error(cd->error, buf, size);
464 /* Deprecated global error interface */
465 void crypt_get_error(char *buf, size_t size)
467 return _get_error(global_error, buf, size);
470 const char *crypt_get_dir(void)
475 int crypt_init(struct crypt_device **cd, const char *device)
477 struct crypt_device *h = NULL;
483 log_dbg("Allocating crypt device %s context.", device);
485 if (!(h = malloc(sizeof(struct crypt_device))))
488 memset(h, 0, sizeof(*h));
492 r = device_ready(NULL, device, O_RDONLY);
494 h->device = crypt_loop_get_device();
495 log_dbg("Not a block device, %s%s.",
496 h->device ? "using free loop device " :
497 "no free loop device found",
500 log_err(NULL, _("Cannot find a free loopback device.\n"));
505 /* Keep the loop open, dettached on last close. */
506 h->loop_fd = crypt_loop_attach(h->device, device, 0, 1, &readonly);
507 if (h->loop_fd == -1) {
508 log_err(NULL, _("Attaching loopback device failed "
509 "(loop device with autoclear flag is required).\n"));
514 h->backing_file = crypt_loop_backing_file(h->device);
515 r = device_ready(NULL, h->device, O_RDONLY);
523 if (!h->device && device && !(h->device = strdup(device))) {
528 if (dm_init(h, 1) < 0) {
533 h->iteration_time = 1000;
534 h->password_verify = 0;
536 h->rng_type = crypt_random_default_key_rng();
542 if (h->loop_fd != -1)
545 free(h->backing_file);
551 static int crypt_check_data_device_size(struct crypt_device *cd)
554 uint64_t size, size_min;
556 /* Check data device size, require at least one sector */
557 size_min = crypt_get_data_offset(cd) << SECTOR_SHIFT ?: SECTOR_SIZE;
559 r = device_size(crypt_get_device_name(cd), &size);
563 if (size < size_min) {
564 log_err(cd, _("LUKS header detected but device %s is too small.\n"),
565 crypt_get_device_name(cd));
572 int crypt_set_data_device(struct crypt_device *cd, const char *device)
577 log_dbg("Setting ciphertext data device to %s.", device ?: "(none)");
579 if (!isLUKS(cd->type)) {
580 log_err(cd, _("This operation is not supported for this device type.\n"));
584 /* metadata device must be set */
588 r = device_ready(NULL, device, O_RDONLY);
592 if (!(data_device = strdup(device)))
595 if (!cd->metadata_device)
596 cd->metadata_device = cd->device;
600 cd->device = data_device;
602 return crypt_check_data_device_size(cd);
605 static int _crypt_load_luks1(struct crypt_device *cd, int require_header, int repair)
607 struct luks_phdr hdr;
614 r = LUKS_read_phdr(mdata_device(cd), &hdr, require_header, repair, cd);
618 if (!cd->type && !(cd->type = strdup(CRYPT_LUKS1)))
621 memcpy(&cd->hdr, &hdr, sizeof(hdr));
626 int crypt_init_by_name_and_header(struct crypt_device **cd,
628 const char *header_device)
630 crypt_status_info ci;
631 struct crypt_dm_active_device dmd;
632 char cipher[MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN];
636 log_dbg("Allocating crypt device context by device %s.", name);
638 ci = crypt_status(NULL, name);
639 if (ci == CRYPT_INVALID)
642 if (ci < CRYPT_ACTIVE) {
643 log_err(NULL, _("Device %s is not active.\n"), name);
647 r = dm_query_device(name, DM_ACTIVE_DEVICE | DM_ACTIVE_CIPHER |
648 DM_ACTIVE_UUID | DM_ACTIVE_KEYSIZE, &dmd);
655 r = crypt_init(cd, header_device);
657 r = crypt_init(cd, dmd.device);
659 /* Underlying device disappeared but mapping still active */
660 if (!dmd.device || r == -ENOTBLK)
661 log_verbose(NULL, _("Underlying device for crypt device %s disappeared.\n"),
664 /* Underlying device is not readable but crypt mapping exists */
666 free(CONST_CAST(void*)dmd.device);
668 r = crypt_init(cd, NULL);
676 if (!strncmp(CRYPT_PLAIN, dmd.uuid, sizeof(CRYPT_PLAIN)-1))
677 (*cd)->type = strdup(CRYPT_PLAIN);
678 else if (!strncmp(CRYPT_LOOPAES, dmd.uuid, sizeof(CRYPT_LOOPAES)-1))
679 (*cd)->type = strdup(CRYPT_LOOPAES);
680 else if (!strncmp(CRYPT_LUKS1, dmd.uuid, sizeof(CRYPT_LUKS1)-1))
681 (*cd)->type = strdup(CRYPT_LUKS1);
683 log_dbg("Unknown UUID set, some parameters are not set.");
685 log_dbg("Active device has no UUID set, some parameters are not set.");
688 r = crypt_set_data_device(*cd, dmd.device);
693 /* Try to initialise basic parameters from active device */
695 if (!(*cd)->backing_file && dmd.device && crypt_loop_device(dmd.device) &&
696 !((*cd)->backing_file = crypt_loop_backing_file(dmd.device))) {
701 if (isPLAIN((*cd)->type)) {
702 (*cd)->plain_uuid = strdup(dmd.uuid);
703 (*cd)->plain_hdr.hash = NULL; /* no way to get this */
704 (*cd)->plain_hdr.offset = dmd.offset;
705 (*cd)->plain_hdr.skip = dmd.iv_offset;
706 (*cd)->plain_key_size = dmd.vk->keylength;
708 r = crypt_parse_name_and_mode(dmd.cipher, cipher, NULL, cipher_mode);
710 (*cd)->plain_cipher = strdup(cipher);
711 (*cd)->plain_cipher_mode = strdup(cipher_mode);
713 } else if (isLOOPAES((*cd)->type)) {
714 (*cd)->loopaes_uuid = strdup(dmd.uuid);
715 (*cd)->loopaes_hdr.offset = dmd.offset;
717 r = crypt_parse_name_and_mode(dmd.cipher, cipher,
718 &key_nums, cipher_mode);
720 (*cd)->loopaes_cipher = strdup(cipher);
721 (*cd)->loopaes_cipher_mode = strdup(cipher_mode);
722 /* version 3 uses last key for IV */
723 if (dmd.vk->keylength % key_nums)
725 (*cd)->loopaes_key_size = dmd.vk->keylength / key_nums;
727 } else if (isLUKS((*cd)->type)) {
728 if (mdata_device(*cd)) {
729 r = _crypt_load_luks1(*cd, 0, 0);
731 log_dbg("LUKS device header does not match active device.");
737 /* checks whether UUIDs match each other */
738 r = crypt_uuid_cmp(dmd.uuid, (*cd)->hdr.uuid);
740 log_dbg("LUKS device header uuid: %s mismatches DM returned uuid %s",
741 (*cd)->hdr.uuid, dmd.uuid);
755 crypt_free_volume_key(dmd.vk);
756 free(CONST_CAST(void*)dmd.device);
757 free(CONST_CAST(void*)dmd.cipher);
758 free(CONST_CAST(void*)dmd.uuid);
762 int crypt_init_by_name(struct crypt_device **cd, const char *name)
764 return crypt_init_by_name_and_header(cd, name, NULL);
767 static int _crypt_format_plain(struct crypt_device *cd,
769 const char *cipher_mode,
771 size_t volume_key_size,
772 struct crypt_params_plain *params)
774 if (!cipher || !cipher_mode) {
775 log_err(cd, _("Invalid plain crypt parameters.\n"));
779 if (volume_key_size > 1024) {
780 log_err(cd, _("Invalid key size.\n"));
784 cd->plain_key_size = volume_key_size;
785 cd->volume_key = crypt_alloc_volume_key(volume_key_size, NULL);
789 cd->plain_cipher = strdup(cipher);
790 cd->plain_cipher_mode = strdup(cipher_mode);
793 cd->plain_uuid = strdup(uuid);
795 if (params && params->hash)
796 cd->plain_hdr.hash = strdup(params->hash);
798 cd->plain_hdr.offset = params ? params->offset : 0;
799 cd->plain_hdr.skip = params ? params->skip : 0;
800 cd->plain_hdr.size = params ? params->size : 0;
802 if (!cd->plain_cipher || !cd->plain_cipher_mode)
808 static int _crypt_format_luks1(struct crypt_device *cd,
810 const char *cipher_mode,
812 const char *volume_key,
813 size_t volume_key_size,
814 struct crypt_params_luks1 *params)
817 unsigned long required_alignment = DEFAULT_DISK_ALIGNMENT;
818 unsigned long alignment_offset = 0;
820 if (!mdata_device(cd)) {
821 log_err(cd, _("Can't format LUKS without device.\n"));
826 cd->volume_key = crypt_alloc_volume_key(volume_key_size,
829 cd->volume_key = crypt_generate_volume_key(cd, volume_key_size);
834 if (params && params->data_device) {
835 cd->metadata_device = cd->device;
836 if (!(cd->device = strdup(params->data_device)))
838 required_alignment = params->data_alignment * SECTOR_SIZE;
839 } else if (params && params->data_alignment) {
840 required_alignment = params->data_alignment * SECTOR_SIZE;
842 get_topology_alignment(cd->device, &required_alignment,
843 &alignment_offset, DEFAULT_DISK_ALIGNMENT);
845 r = LUKS_generate_phdr(&cd->hdr, cd->volume_key, cipher, cipher_mode,
846 (params && params->hash) ? params->hash : "sha1",
848 required_alignment / SECTOR_SIZE,
849 alignment_offset / SECTOR_SIZE,
850 cd->iteration_time, &cd->PBKDF2_per_sec,
851 cd->metadata_device, cd);
855 /* Wipe first 8 sectors - fs magic numbers etc. */
856 r = crypt_wipe(mdata_device(cd), 0, 8 * SECTOR_SIZE, CRYPT_WIPE_ZERO, 1);
859 log_err(cd, _("Cannot format device %s which is still in use.\n"),
862 log_err(cd, _("Cannot wipe header on device %s.\n"),
868 r = LUKS_write_phdr(mdata_device(cd), &cd->hdr, cd);
873 static int _crypt_format_loopaes(struct crypt_device *cd,
876 size_t volume_key_size,
877 struct crypt_params_loopaes *params)
879 if (!mdata_device(cd)) {
880 log_err(cd, _("Can't format LOOPAES without device.\n"));
884 if (volume_key_size > 1024) {
885 log_err(cd, _("Invalid key size.\n"));
889 cd->loopaes_key_size = volume_key_size;
891 cd->loopaes_cipher = strdup(cipher ?: DEFAULT_LOOPAES_CIPHER);
894 cd->loopaes_uuid = strdup(uuid);
896 if (params && params->hash)
897 cd->loopaes_hdr.hash = strdup(params->hash);
899 cd->loopaes_hdr.offset = params ? params->offset : 0;
900 cd->loopaes_hdr.skip = params ? params->skip : 0;
905 int crypt_format(struct crypt_device *cd,
908 const char *cipher_mode,
910 const char *volume_key,
911 size_t volume_key_size,
920 log_dbg("Context already formatted as %s.", cd->type);
924 log_dbg("Formatting device %s as type %s.", mdata_device(cd) ?: "(none)", type);
931 r = _crypt_format_plain(cd, cipher, cipher_mode,
932 uuid, volume_key_size, params);
933 else if (isLUKS(type))
934 r = _crypt_format_luks1(cd, cipher, cipher_mode,
935 uuid, volume_key, volume_key_size, params);
936 else if (isLOOPAES(type))
937 r = _crypt_format_loopaes(cd, cipher, uuid, volume_key_size, params);
939 /* FIXME: allow plugins here? */
940 log_err(cd, _("Unknown crypt device type %s requested.\n"), type);
944 if (!r && !(cd->type = strdup(type)))
948 crypt_free_volume_key(cd->volume_key);
949 cd->volume_key = NULL;
955 int crypt_load(struct crypt_device *cd,
956 const char *requested_type,
957 void *params __attribute__((unused)))
961 log_dbg("Trying to load %s crypt type from device %s.",
962 requested_type ?: "any", mdata_device(cd) ?: "(none)");
964 if (!mdata_device(cd))
967 if (requested_type && !isLUKS(requested_type))
970 if (cd->type && !isLUKS(cd->type)) {
971 log_dbg("Context is already initialised to type %s", cd->type);
975 r = _crypt_load_luks1(cd, 1, 0);
979 /* cd->type and header must be set in context */
980 r = crypt_check_data_device_size(cd);
989 int crypt_repair(struct crypt_device *cd,
990 const char *requested_type,
991 void *params __attribute__((unused)))
995 log_dbg("Trying to repair %s crypt type from device %s.",
996 requested_type ?: "any", mdata_device(cd) ?: "(none)");
998 if (!mdata_device(cd))
1001 if (requested_type && !isLUKS(requested_type))
1005 /* Load with repair */
1006 r = _crypt_load_luks1(cd, 1, 1);
1010 /* cd->type and header must be set in context */
1011 r = crypt_check_data_device_size(cd);
1020 int crypt_resize(struct crypt_device *cd, const char *name, uint64_t new_size)
1022 struct crypt_dm_active_device dmd;
1025 /* Device context type must be initialised */
1026 if (!cd->type || !crypt_get_uuid(cd))
1029 log_dbg("Resizing device %s to %" PRIu64 " sectors.", name, new_size);
1031 r = dm_query_device(name, DM_ACTIVE_DEVICE | DM_ACTIVE_CIPHER |
1032 DM_ACTIVE_UUID | DM_ACTIVE_KEYSIZE |
1033 DM_ACTIVE_KEY, &dmd);
1035 log_err(NULL, _("Device %s is not active.\n"), name);
1044 r = device_check_and_adjust(cd, dmd.device, DEV_OK, &new_size, &dmd.offset, &dmd.flags);
1048 if (new_size == dmd.size) {
1049 log_dbg("Device has already requested size %" PRIu64
1050 " sectors.", dmd.size);
1053 dmd.size = new_size;
1054 r = dm_create_device(name, cd->type, &dmd, 1);
1057 crypt_free_volume_key(dmd.vk);
1058 free(CONST_CAST(void*)dmd.cipher);
1059 free(CONST_CAST(void*)dmd.device);
1060 free(CONST_CAST(void*)dmd.uuid);
1065 int crypt_set_uuid(struct crypt_device *cd, const char *uuid)
1067 if (!isLUKS(cd->type)) {
1068 log_err(cd, _("This operation is not supported for this device type.\n"));
1072 if (uuid && !strncmp(uuid, cd->hdr.uuid, sizeof(cd->hdr.uuid))) {
1073 log_dbg("UUID is the same as requested (%s) for device %s.",
1074 uuid, mdata_device(cd));
1079 log_dbg("Requested new UUID change to %s for %s.", uuid, mdata_device(cd));
1081 log_dbg("Requested new UUID refresh for %s.", mdata_device(cd));
1083 if (!crypt_confirm(cd, _("Do you really want to change UUID of device?")))
1086 return LUKS_hdr_uuid_set(mdata_device(cd), &cd->hdr, uuid, cd);
1089 int crypt_header_backup(struct crypt_device *cd,
1090 const char *requested_type,
1091 const char *backup_file)
1095 if ((requested_type && !isLUKS(requested_type)) || !backup_file)
1098 r = init_crypto(cd);
1102 log_dbg("Requested header backup of device %s (%s) to "
1103 "file %s.", mdata_device(cd), requested_type, backup_file);
1105 return LUKS_hdr_backup(backup_file, mdata_device(cd), &cd->hdr, cd);
1108 int crypt_header_restore(struct crypt_device *cd,
1109 const char *requested_type,
1110 const char *backup_file)
1114 if (requested_type && !isLUKS(requested_type))
1117 /* Some hash functions need initialized gcrypt library */
1118 r = init_crypto(cd);
1122 log_dbg("Requested header restore to device %s (%s) from "
1123 "file %s.", mdata_device(cd), requested_type, backup_file);
1125 return LUKS_hdr_restore(backup_file, mdata_device(cd), &cd->hdr, cd);
1128 void crypt_free(struct crypt_device *cd)
1131 log_dbg("Releasing crypt device %s context.", mdata_device(cd));
1133 if (cd->loop_fd != -1)
1137 crypt_free_volume_key(cd->volume_key);
1140 free(cd->metadata_device);
1141 free(cd->backing_file);
1144 /* used in plain device only */
1145 free(CONST_CAST(void*)cd->plain_hdr.hash);
1146 free(cd->plain_cipher);
1147 free(cd->plain_cipher_mode);
1148 free(cd->plain_uuid);
1150 /* used in loop-AES device only */
1151 free(CONST_CAST(void*)cd->loopaes_hdr.hash);
1152 free(cd->loopaes_cipher);
1153 free(cd->loopaes_uuid);
1159 int crypt_suspend(struct crypt_device *cd,
1162 crypt_status_info ci;
1165 log_dbg("Suspending volume %s.", name);
1167 if (!isLUKS(cd->type)) {
1168 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1173 ci = crypt_status(NULL, name);
1174 if (ci < CRYPT_ACTIVE) {
1175 log_err(cd, _("Volume %s is not active.\n"), name);
1179 if (!cd && dm_init(NULL, 1) < 0)
1182 r = dm_status_suspended(name);
1187 log_err(cd, _("Volume %s is already suspended.\n"), name);
1192 r = dm_suspend_and_wipe_key(name);
1194 log_err(cd, "Suspend is not supported for device %s.\n", name);
1196 log_err(cd, "Error during suspending device %s.\n", name);
1203 int crypt_resume_by_passphrase(struct crypt_device *cd,
1206 const char *passphrase,
1207 size_t passphrase_size)
1209 struct volume_key *vk = NULL;
1212 log_dbg("Resuming volume %s.", name);
1214 if (!isLUKS(cd->type)) {
1215 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1220 r = dm_status_suspended(name);
1225 log_err(cd, _("Volume %s is not suspended.\n"), name);
1230 r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase,
1231 passphrase_size, &cd->hdr, &vk, cd);
1233 r = volume_key_by_terminal_passphrase(cd, keyslot, &vk);
1237 r = dm_resume_and_reinstate_key(name, vk->keylength, vk->key);
1239 log_err(cd, "Resume is not supported for device %s.\n", name);
1241 log_err(cd, "Error during resuming device %s.\n", name);
1245 crypt_free_volume_key(vk);
1246 return r < 0 ? r : keyslot;
1249 int crypt_resume_by_keyfile_offset(struct crypt_device *cd,
1252 const char *keyfile,
1253 size_t keyfile_size,
1254 size_t keyfile_offset)
1256 struct volume_key *vk = NULL;
1257 char *passphrase_read = NULL;
1258 size_t passphrase_size_read;
1261 log_dbg("Resuming volume %s.", name);
1263 if (!isLUKS(cd->type)) {
1264 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1269 r = dm_status_suspended(name);
1274 log_err(cd, _("Volume %s is not suspended.\n"), name);
1281 r = key_from_file(cd, _("Enter passphrase: "), &passphrase_read,
1282 &passphrase_size_read, keyfile, keyfile_offset,
1287 r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase_read,
1288 passphrase_size_read, &cd->hdr, &vk, cd);
1293 r = dm_resume_and_reinstate_key(name, vk->keylength, vk->key);
1295 log_err(cd, "Error during resuming device %s.\n", name);
1297 crypt_safe_free(passphrase_read);
1298 crypt_free_volume_key(vk);
1299 return r < 0 ? r : keyslot;
1302 int crypt_resume_by_keyfile(struct crypt_device *cd,
1305 const char *keyfile,
1306 size_t keyfile_size)
1308 return crypt_resume_by_keyfile_offset(cd, name, keyslot,
1309 keyfile, keyfile_size, 0);
1312 // slot manipulation
1313 int crypt_keyslot_add_by_passphrase(struct crypt_device *cd,
1314 int keyslot, // -1 any
1315 const char *passphrase, // NULL -> terminal
1316 size_t passphrase_size,
1317 const char *new_passphrase, // NULL -> terminal
1318 size_t new_passphrase_size)
1320 struct volume_key *vk = NULL;
1321 char *password = NULL, *new_password = NULL;
1322 size_t passwordLen, new_passwordLen;
1325 log_dbg("Adding new keyslot, existing passphrase %sprovided,"
1326 "new passphrase %sprovided.",
1327 passphrase ? "" : "not ", new_passphrase ? "" : "not ");
1329 if (!isLUKS(cd->type)) {
1330 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1334 r = keyslot_verify_or_find_empty(cd, &keyslot);
1338 if (!LUKS_keyslot_active_count(&cd->hdr)) {
1339 /* No slots used, try to use pre-generated key in header */
1340 if (cd->volume_key) {
1341 vk = crypt_alloc_volume_key(cd->volume_key->keylength, cd->volume_key->key);
1342 r = vk ? 0 : -ENOMEM;
1344 log_err(cd, _("Cannot add key slot, all slots disabled and no volume key provided.\n"));
1347 } else if (passphrase) {
1348 /* Passphrase provided, use it to unlock existing keyslot */
1349 r = LUKS_open_key_with_hdr(mdata_device(cd), CRYPT_ANY_SLOT, passphrase,
1350 passphrase_size, &cd->hdr, &vk, cd);
1352 /* Passphrase not provided, ask first and use it to unlock existing keyslot */
1353 r = key_from_terminal(cd, _("Enter any passphrase: "),
1354 &password, &passwordLen, 0);
1358 r = LUKS_open_key_with_hdr(mdata_device(cd), CRYPT_ANY_SLOT, password,
1359 passwordLen, &cd->hdr, &vk, cd);
1360 crypt_safe_free(password);
1366 if (new_passphrase) {
1367 new_password = CONST_CAST(char*)new_passphrase;
1368 new_passwordLen = new_passphrase_size;
1370 r = key_from_terminal(cd, _("Enter new passphrase for key slot: "),
1371 &new_password, &new_passwordLen, 1);
1376 r = LUKS_set_key(mdata_device(cd), keyslot, new_password, new_passwordLen,
1377 &cd->hdr, vk, cd->iteration_time, &cd->PBKDF2_per_sec, cd);
1382 if (!new_passphrase)
1383 crypt_safe_free(new_password);
1384 crypt_free_volume_key(vk);
1385 return r ?: keyslot;
1388 int crypt_keyslot_add_by_keyfile_offset(struct crypt_device *cd,
1390 const char *keyfile,
1391 size_t keyfile_size,
1392 size_t keyfile_offset,
1393 const char *new_keyfile,
1394 size_t new_keyfile_size,
1395 size_t new_keyfile_offset)
1397 struct volume_key *vk = NULL;
1398 char *password = NULL; size_t passwordLen;
1399 char *new_password = NULL; size_t new_passwordLen;
1402 log_dbg("Adding new keyslot, existing keyfile %s, new keyfile %s.",
1403 keyfile ?: "[none]", new_keyfile ?: "[none]");
1405 if (!isLUKS(cd->type)) {
1406 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1410 r = keyslot_verify_or_find_empty(cd, &keyslot);
1414 if (!LUKS_keyslot_active_count(&cd->hdr)) {
1415 /* No slots used, try to use pre-generated key in header */
1416 if (cd->volume_key) {
1417 vk = crypt_alloc_volume_key(cd->volume_key->keylength, cd->volume_key->key);
1418 r = vk ? 0 : -ENOMEM;
1420 log_err(cd, _("Cannot add key slot, all slots disabled and no volume key provided.\n"));
1424 /* Read password from file of (if NULL) from terminal */
1426 r = key_from_file(cd, _("Enter any passphrase: "),
1427 &password, &passwordLen,
1428 keyfile, keyfile_offset, keyfile_size);
1430 r = key_from_terminal(cd, _("Enter any passphrase: "),
1431 &password, &passwordLen, 0);
1435 r = LUKS_open_key_with_hdr(mdata_device(cd), CRYPT_ANY_SLOT, password, passwordLen,
1443 r = key_from_file(cd, _("Enter new passphrase for key slot: "),
1444 &new_password, &new_passwordLen, new_keyfile,
1445 new_keyfile_offset, new_keyfile_size);
1447 r = key_from_terminal(cd, _("Enter new passphrase for key slot: "),
1448 &new_password, &new_passwordLen, 1);
1452 r = LUKS_set_key(mdata_device(cd), keyslot, new_password, new_passwordLen,
1453 &cd->hdr, vk, cd->iteration_time, &cd->PBKDF2_per_sec, cd);
1455 crypt_safe_free(password);
1456 crypt_safe_free(new_password);
1457 crypt_free_volume_key(vk);
1458 return r < 0 ? r : keyslot;
1461 int crypt_keyslot_add_by_keyfile(struct crypt_device *cd,
1463 const char *keyfile,
1464 size_t keyfile_size,
1465 const char *new_keyfile,
1466 size_t new_keyfile_size)
1468 return crypt_keyslot_add_by_keyfile_offset(cd, keyslot,
1469 keyfile, keyfile_size, 0,
1470 new_keyfile, new_keyfile_size, 0);
1473 int crypt_keyslot_add_by_volume_key(struct crypt_device *cd,
1475 const char *volume_key,
1476 size_t volume_key_size,
1477 const char *passphrase,
1478 size_t passphrase_size)
1480 struct volume_key *vk = NULL;
1482 char *new_password = NULL; size_t new_passwordLen;
1484 log_dbg("Adding new keyslot %d using volume key.", keyslot);
1486 if (!isLUKS(cd->type)) {
1487 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1492 vk = crypt_alloc_volume_key(volume_key_size, volume_key);
1493 else if (cd->volume_key)
1494 vk = crypt_alloc_volume_key(cd->volume_key->keylength, cd->volume_key->key);
1499 r = LUKS_verify_volume_key(&cd->hdr, vk);
1501 log_err(cd, _("Volume key does not match the volume.\n"));
1505 r = keyslot_verify_or_find_empty(cd, &keyslot);
1510 r = key_from_terminal(cd, _("Enter new passphrase for key slot: "),
1511 &new_password, &new_passwordLen, 1);
1514 passphrase = new_password;
1515 passphrase_size = new_passwordLen;
1518 r = LUKS_set_key(mdata_device(cd), keyslot, passphrase, passphrase_size,
1519 &cd->hdr, vk, cd->iteration_time, &cd->PBKDF2_per_sec, cd);
1521 crypt_safe_free(new_password);
1522 crypt_free_volume_key(vk);
1523 return (r < 0) ? r : keyslot;
1526 int crypt_keyslot_destroy(struct crypt_device *cd, int keyslot)
1528 crypt_keyslot_info ki;
1530 log_dbg("Destroying keyslot %d.", keyslot);
1532 if (!isLUKS(cd->type)) {
1533 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1537 ki = crypt_keyslot_status(cd, keyslot);
1538 if (ki == CRYPT_SLOT_INVALID) {
1539 log_err(cd, _("Key slot %d is invalid.\n"), keyslot);
1543 if (ki == CRYPT_SLOT_INACTIVE) {
1544 log_err(cd, _("Key slot %d is not used.\n"), keyslot);
1548 return LUKS_del_key(mdata_device(cd), keyslot, &cd->hdr, cd);
1551 // activation/deactivation of device mapping
1552 int crypt_activate_by_passphrase(struct crypt_device *cd,
1555 const char *passphrase,
1556 size_t passphrase_size,
1559 crypt_status_info ci;
1560 struct volume_key *vk = NULL;
1561 char *read_passphrase = NULL;
1562 size_t passphraseLen = 0;
1565 log_dbg("%s volume %s [keyslot %d] using %spassphrase.",
1566 name ? "Activating" : "Checking", name ?: "",
1567 keyslot, passphrase ? "" : "[none] ");
1570 ci = crypt_status(NULL, name);
1571 if (ci == CRYPT_INVALID)
1573 else if (ci >= CRYPT_ACTIVE) {
1574 log_err(cd, _("Device %s already exists.\n"), name);
1579 /* plain, use hashed passphrase */
1580 if (isPLAIN(cd->type)) {
1585 r = key_from_terminal(cd, NULL, &read_passphrase,
1589 passphrase = read_passphrase;
1590 passphrase_size = passphraseLen;
1593 r = process_key(cd, cd->plain_hdr.hash,
1595 passphrase, passphrase_size, &vk);
1599 r = PLAIN_activate(cd, name, vk, cd->plain_hdr.size, flags);
1601 } else if (isLUKS(cd->type)) {
1602 /* provided passphrase, do not retry */
1604 r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase,
1605 passphrase_size, &cd->hdr, &vk, cd);
1607 r = volume_key_by_terminal_passphrase(cd, keyslot, &vk);
1612 r = LUKS1_activate(cd, name, vk, flags);
1617 crypt_safe_free(read_passphrase);
1618 crypt_free_volume_key(vk);
1620 return r < 0 ? r : keyslot;
1623 int crypt_activate_by_keyfile_offset(struct crypt_device *cd,
1626 const char *keyfile,
1627 size_t keyfile_size,
1628 size_t keyfile_offset,
1631 crypt_status_info ci;
1632 struct volume_key *vk = NULL;
1633 char *passphrase_read = NULL;
1634 size_t passphrase_size_read;
1635 unsigned int key_count = 0;
1638 log_dbg("Activating volume %s [keyslot %d] using keyfile %s.",
1639 name ?: "", keyslot, keyfile ?: "[none]");
1642 ci = crypt_status(NULL, name);
1643 if (ci == CRYPT_INVALID)
1645 else if (ci >= CRYPT_ACTIVE) {
1646 log_err(cd, _("Device %s already exists.\n"), name);
1654 if (isPLAIN(cd->type)) {
1658 r = key_from_file(cd, _("Enter passphrase: "),
1659 &passphrase_read, &passphrase_size_read,
1660 keyfile, keyfile_offset, keyfile_size);
1664 r = process_key(cd, cd->plain_hdr.hash,
1666 passphrase_read, passphrase_size_read, &vk);
1670 r = PLAIN_activate(cd, name, vk, cd->plain_hdr.size, flags);
1671 } else if (isLUKS(cd->type)) {
1672 r = key_from_file(cd, _("Enter passphrase: "), &passphrase_read,
1673 &passphrase_size_read, keyfile, keyfile_offset, keyfile_size);
1676 r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase_read,
1677 passphrase_size_read, &cd->hdr, &vk, cd);
1683 r = LUKS1_activate(cd, name, vk, flags);
1688 } else if (isLOOPAES(cd->type)) {
1689 r = key_from_file(cd, NULL, &passphrase_read, &passphrase_size_read,
1690 keyfile, keyfile_offset, keyfile_size);
1693 r = LOOPAES_parse_keyfile(cd, &vk, cd->loopaes_hdr.hash, &key_count,
1694 passphrase_read, passphrase_size_read);
1698 r = LOOPAES_activate(cd, name, cd->loopaes_cipher,
1699 key_count, vk, flags);
1704 crypt_safe_free(passphrase_read);
1705 crypt_free_volume_key(vk);
1710 int crypt_activate_by_keyfile(struct crypt_device *cd,
1713 const char *keyfile,
1714 size_t keyfile_size,
1717 return crypt_activate_by_keyfile_offset(cd, name, keyslot, keyfile,
1718 keyfile_size, 0, flags);
1721 int crypt_activate_by_volume_key(struct crypt_device *cd,
1723 const char *volume_key,
1724 size_t volume_key_size,
1727 crypt_status_info ci;
1728 struct volume_key *vk = NULL;
1731 log_dbg("Activating volume %s by volume key.", name);
1734 ci = crypt_status(NULL, name);
1735 if (ci == CRYPT_INVALID)
1737 else if (ci >= CRYPT_ACTIVE) {
1738 log_err(cd, _("Device %s already exists.\n"), name);
1743 /* use key directly, no hash */
1744 if (isPLAIN(cd->type)) {
1748 if (!volume_key || !volume_key_size || volume_key_size != cd->plain_key_size) {
1749 log_err(cd, _("Incorrect volume key specified for plain device.\n"));
1753 vk = crypt_alloc_volume_key(volume_key_size, volume_key);
1757 r = PLAIN_activate(cd, name, vk, cd->plain_hdr.size, flags);
1758 } else if (isLUKS(cd->type)) {
1759 /* If key is not provided, try to use internal key */
1761 if (!cd->volume_key) {
1762 log_err(cd, _("Volume key does not match the volume.\n"));
1765 volume_key_size = cd->volume_key->keylength;
1766 volume_key = cd->volume_key->key;
1769 vk = crypt_alloc_volume_key(volume_key_size, volume_key);
1772 r = LUKS_verify_volume_key(&cd->hdr, vk);
1775 log_err(cd, _("Volume key does not match the volume.\n"));
1778 r = LUKS1_activate(cd, name, vk, flags);
1780 log_err(cd, _("Device type is not properly initialised.\n"));
1782 crypt_free_volume_key(vk);
1787 int crypt_deactivate(struct crypt_device *cd, const char *name)
1794 log_dbg("Deactivating volume %s.", name);
1796 if (!cd && dm_init(NULL, 1) < 0)
1799 switch (crypt_status(cd, name)) {
1801 r = dm_remove_device(name, 0, 0);
1804 log_err(cd, _("Device %s is busy.\n"), name);
1807 case CRYPT_INACTIVE:
1808 log_err(cd, _("Device %s is not active.\n"), name);
1812 log_err(cd, _("Invalid device %s.\n"), name);
1822 int crypt_volume_key_get(struct crypt_device *cd,
1825 size_t *volume_key_size,
1826 const char *passphrase,
1827 size_t passphrase_size)
1829 struct volume_key *vk = NULL;
1833 key_len = crypt_get_volume_key_size(cd);
1834 if (key_len > *volume_key_size) {
1835 log_err(cd, _("Volume key buffer too small.\n"));
1839 if (isPLAIN(cd->type) && cd->plain_hdr.hash) {
1840 r = process_key(cd, cd->plain_hdr.hash, key_len,
1841 passphrase, passphrase_size, &vk);
1843 log_err(cd, _("Cannot retrieve volume key for plain device.\n"));
1844 } else if (isLUKS(cd->type)) {
1845 r = LUKS_open_key_with_hdr(mdata_device(cd), keyslot, passphrase,
1846 passphrase_size, &cd->hdr, &vk, cd);
1849 log_err(cd, _("This operation is not supported for %s crypt device.\n"), cd->type ?: "(none)");
1852 memcpy(volume_key, vk->key, vk->keylength);
1853 *volume_key_size = vk->keylength;
1856 crypt_free_volume_key(vk);
1860 int crypt_volume_key_verify(struct crypt_device *cd,
1861 const char *volume_key,
1862 size_t volume_key_size)
1864 struct volume_key *vk;
1867 if (!isLUKS(cd->type)) {
1868 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1872 vk = crypt_alloc_volume_key(volume_key_size, volume_key);
1876 r = LUKS_verify_volume_key(&cd->hdr, vk);
1879 log_err(cd, _("Volume key does not match the volume.\n"));
1881 crypt_free_volume_key(vk);
1886 void crypt_set_timeout(struct crypt_device *cd, uint64_t timeout_sec)
1888 log_dbg("Timeout set to %" PRIu64 " miliseconds.", timeout_sec);
1889 cd->timeout = timeout_sec;
1892 void crypt_set_password_retry(struct crypt_device *cd, int tries)
1894 log_dbg("Password retry count set to %d.", tries);
1898 void crypt_set_iteration_time(struct crypt_device *cd, uint64_t iteration_time_ms)
1900 log_dbg("Iteration time set to %" PRIu64 " miliseconds.", iteration_time_ms);
1901 cd->iteration_time = iteration_time_ms;
1903 void crypt_set_iterarion_time(struct crypt_device *cd, uint64_t iteration_time_ms)
1905 crypt_set_iteration_time(cd, iteration_time_ms);
1908 void crypt_set_password_verify(struct crypt_device *cd, int password_verify)
1910 log_dbg("Password verification %s.", password_verify ? "enabled" : "disabled");
1911 cd->password_verify = password_verify ? 1 : 0;
1914 void crypt_set_rng_type(struct crypt_device *cd, int rng_type)
1917 case CRYPT_RNG_URANDOM:
1918 case CRYPT_RNG_RANDOM:
1919 log_dbg("RNG set to %d (%s).", rng_type, rng_type ? "random" : "urandom");
1920 cd->rng_type = rng_type;
1924 int crypt_get_rng_type(struct crypt_device *cd)
1929 return cd->rng_type;
1932 int crypt_memory_lock(struct crypt_device *cd, int lock)
1934 return lock ? crypt_memlock_inc(cd) : crypt_memlock_dec(cd);
1938 crypt_status_info crypt_status(struct crypt_device *cd, const char *name)
1942 if (!cd && dm_init(NULL, 1) < 0)
1943 return CRYPT_INVALID;
1945 r = dm_status_device(name);
1950 if (r < 0 && r != -ENODEV)
1951 return CRYPT_INVALID;
1954 return CRYPT_ACTIVE;
1959 return CRYPT_INACTIVE;
1962 static void hexprintICB(struct crypt_device *cd, char *d, int n)
1965 for(i = 0; i < n; i++)
1966 log_std(cd, "%02hhx ", (char)d[i]);
1969 int crypt_dump(struct crypt_device *cd)
1972 if (!isLUKS(cd->type)) { //FIXME
1973 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1977 log_std(cd, "LUKS header information for %s\n\n", mdata_device(cd));
1978 log_std(cd, "Version: \t%d\n", cd->hdr.version);
1979 log_std(cd, "Cipher name: \t%s\n", cd->hdr.cipherName);
1980 log_std(cd, "Cipher mode: \t%s\n", cd->hdr.cipherMode);
1981 log_std(cd, "Hash spec: \t%s\n", cd->hdr.hashSpec);
1982 log_std(cd, "Payload offset:\t%d\n", cd->hdr.payloadOffset);
1983 log_std(cd, "MK bits: \t%d\n", cd->hdr.keyBytes * 8);
1984 log_std(cd, "MK digest: \t");
1985 hexprintICB(cd, cd->hdr.mkDigest, LUKS_DIGESTSIZE);
1987 log_std(cd, "MK salt: \t");
1988 hexprintICB(cd, cd->hdr.mkDigestSalt, LUKS_SALTSIZE/2);
1989 log_std(cd, "\n \t");
1990 hexprintICB(cd, cd->hdr.mkDigestSalt+LUKS_SALTSIZE/2, LUKS_SALTSIZE/2);
1992 log_std(cd, "MK iterations: \t%d\n", cd->hdr.mkDigestIterations);
1993 log_std(cd, "UUID: \t%s\n\n", cd->hdr.uuid);
1994 for(i = 0; i < LUKS_NUMKEYS; i++) {
1995 if(cd->hdr.keyblock[i].active == LUKS_KEY_ENABLED) {
1996 log_std(cd, "Key Slot %d: ENABLED\n",i);
1997 log_std(cd, "\tIterations: \t%d\n",
1998 cd->hdr.keyblock[i].passwordIterations);
1999 log_std(cd, "\tSalt: \t");
2000 hexprintICB(cd, cd->hdr.keyblock[i].passwordSalt,
2002 log_std(cd, "\n\t \t");
2003 hexprintICB(cd, cd->hdr.keyblock[i].passwordSalt +
2004 LUKS_SALTSIZE/2, LUKS_SALTSIZE/2);
2007 log_std(cd, "\tKey material offset:\t%d\n",
2008 cd->hdr.keyblock[i].keyMaterialOffset);
2009 log_std(cd, "\tAF stripes: \t%d\n",
2010 cd->hdr.keyblock[i].stripes);
2013 log_std(cd, "Key Slot %d: DISABLED\n", i);
2019 const char *crypt_get_cipher(struct crypt_device *cd)
2021 if (isPLAIN(cd->type))
2022 return cd->plain_cipher;
2024 if (isLUKS(cd->type))
2025 return cd->hdr.cipherName;
2027 if (isLOOPAES(cd->type))
2028 return cd->loopaes_cipher;
2033 const char *crypt_get_cipher_mode(struct crypt_device *cd)
2035 if (isPLAIN(cd->type))
2036 return cd->plain_cipher_mode;
2038 if (isLUKS(cd->type))
2039 return cd->hdr.cipherMode;
2041 if (isLOOPAES(cd->type))
2042 return cd->loopaes_cipher_mode;
2047 const char *crypt_get_uuid(struct crypt_device *cd)
2049 if (isLUKS(cd->type))
2050 return cd->hdr.uuid;
2052 if (isPLAIN(cd->type))
2053 return cd->plain_uuid;
2055 if (isLOOPAES(cd->type))
2056 return cd->loopaes_uuid;
2061 const char *crypt_get_device_name(struct crypt_device *cd)
2067 int crypt_get_volume_key_size(struct crypt_device *cd)
2069 if (isPLAIN(cd->type))
2070 return cd->plain_key_size;
2072 if (isLUKS(cd->type))
2073 return cd->hdr.keyBytes;
2075 if (isLOOPAES(cd->type))
2076 return cd->loopaes_key_size;
2081 uint64_t crypt_get_data_offset(struct crypt_device *cd)
2083 if (isPLAIN(cd->type))
2084 return cd->plain_hdr.offset;
2086 if (isLUKS(cd->type))
2087 return cd->hdr.payloadOffset;
2089 if (isLOOPAES(cd->type))
2090 return cd->loopaes_hdr.offset;
2095 uint64_t crypt_get_iv_offset(struct crypt_device *cd)
2097 if (isPLAIN(cd->type))
2098 return cd->plain_hdr.skip;
2100 if (isLUKS(cd->type))
2103 if (isLOOPAES(cd->type))
2104 return cd->loopaes_hdr.skip;
2109 crypt_keyslot_info crypt_keyslot_status(struct crypt_device *cd, int keyslot)
2111 if (!isLUKS(cd->type)) {
2112 log_err(cd, _("This operation is supported only for LUKS device.\n"));
2113 return CRYPT_SLOT_INVALID;
2116 return LUKS_keyslot_info(&cd->hdr, keyslot);
2119 int crypt_keyslot_max(const char *type)
2121 if (type && isLUKS(type))
2122 return LUKS_NUMKEYS;
2127 const char *crypt_get_type(struct crypt_device *cd)
2132 int crypt_get_active_device(struct crypt_device *cd __attribute__((unused)),
2134 struct crypt_active_device *cad)
2136 struct crypt_dm_active_device dmd;
2139 r = dm_query_device(name, 0, &dmd);
2143 cad->offset = dmd.offset;
2144 cad->iv_offset = dmd.iv_offset;
2145 cad->size = dmd.size;
2146 cad->flags = dmd.flags;