8 #include "libcryptsetup.h"
16 struct luks_masterkey *volume_key;
18 uint64_t iteration_time;
22 /* used in CRYPT_LUKS1 */
24 uint64_t PBKDF2_per_sec;
26 /* used in CRYPT_PLAIN */
27 struct crypt_params_plain plain_hdr;
29 char *plain_cipher_mode;
32 /* callbacks definitions */
33 void (*log)(int level, const char *msg, void *usrptr);
35 int (*confirm)(const char *msg, void *usrptr);
37 int (*password)(const char *msg, char *buf, size_t length, void *usrptr);
38 void *password_usrptr;
42 static void (*_default_log)(int level, const char *msg, void *usrptr) = NULL;
43 static int _debug_level = 0;
45 void crypt_set_debug_level(int level)
50 int crypt_get_debug_level()
55 void crypt_log(struct crypt_device *cd, int level, const char *msg)
58 cd->log(level, msg, cd->log_usrptr);
59 else if (_default_log)
60 _default_log(level, msg, NULL);
63 void logger(struct crypt_device *cd, int level, const char *file,
64 int line, const char *format, ...)
69 va_start(argp, format);
71 if (vasprintf(&target, format, argp) > 0) {
73 crypt_log(cd, level, target);
75 } else if (_debug_level)
76 printf("# %s:%d %s\n", file ?: "?", line, target);
78 } else if (_debug_level)
79 printf("# %s\n", target);
88 * Password processing behaviour matrix of process_key
90 * from binary file: check if there is sufficently large key material
91 * interactive & from fd: hash if requested, otherwise crop or pad with '0'
93 static char *process_key(struct crypt_device *cd, const char *hash_name,
94 const char *key_file, size_t key_size,
95 const char *pass, size_t passLen)
97 char *key = safe_alloc(key_size);
98 memset(key, 0, key_size);
100 /* key is coming from binary file */
101 if (key_file && strcmp(key_file, "-")) {
102 if(passLen < key_size) {
103 log_err(cd, _("Cannot not read %d bytes from key file %s.\n"),
108 memcpy(key, pass, key_size);
112 /* key is coming from tty, fd or binary stdin */
114 if (hash(NULL, hash_name, key, key_size, pass, passLen) < 0) {
115 log_err(cd, _("Key processing error (using hash algorithm %s).\n"),
120 } else if (passLen > key_size) {
121 memcpy(key, pass, key_size);
123 memcpy(key, pass, passLen);
129 int parse_into_name_and_mode(const char *nameAndMode, char *name, char *mode)
131 /* Token content stringification, see info cpp/stringification */
133 #define xstr(s) str(s)
134 #define scanpattern1 "%" xstr(LUKS_CIPHERNAME_L) "[^-]-%" xstr(LUKS_CIPHERMODE_L) "s"
135 #define scanpattern2 "%" xstr(LUKS_CIPHERNAME_L) "[^-]"
139 if(sscanf(nameAndMode,scanpattern1, name, mode) != 2) {
140 if((r = sscanf(nameAndMode,scanpattern2,name)) == 1)
141 strncpy(mode,"cbc-plain",10);
154 static int isPLAIN(const char *type)
156 return (type && !strcmp(CRYPT_PLAIN, type));
159 static int isLUKS(const char *type)
161 return (type && !strcmp(CRYPT_LUKS1, type));
164 /* keyslot helpers */
165 static int keyslot_verify_or_find_empty(struct crypt_device *cd, int *keyslot)
167 if (*keyslot == CRYPT_ANY_SLOT) {
168 *keyslot = LUKS_keyslot_find_empty(&cd->hdr);
170 log_err(cd, _("All key slots full.\n"));
175 switch (LUKS_keyslot_info(&cd->hdr, *keyslot)) {
176 case CRYPT_SLOT_INVALID:
177 log_err(cd, _("Key slot %d is invalid, please select between 0 and %d.\n"),
178 *keyslot, LUKS_NUMKEYS - 1);
180 case CRYPT_SLOT_INACTIVE:
183 log_err(cd, _("Key slot %d is full, please select another one.\n"),
191 static int verify_other_keyslot(struct crypt_device *cd,
192 const char *key_file,
196 struct luks_masterkey *mk;
197 crypt_keyslot_info ki;
199 char *password = NULL;
200 unsigned int passwordLen;
202 get_key(_("Enter any remaining LUKS passphrase: "), &password,
203 &passwordLen, 0, key_file, cd->timeout, flags, cd);
207 ki = crypt_keyslot_status(cd, keyIndex);
208 if (ki == CRYPT_SLOT_ACTIVE) /* Not last slot */
209 LUKS_keyslot_set(&cd->hdr, keyIndex, 0);
211 openedIndex = LUKS_open_key_with_hdr(cd->device, CRYPT_ANY_SLOT,
212 password, passwordLen,
215 if (ki == CRYPT_SLOT_ACTIVE)
216 LUKS_keyslot_set(&cd->hdr, keyIndex, 1);
217 LUKS_dealloc_masterkey(mk);
223 log_verbose(cd, _("Key slot %d verified.\n"), openedIndex);
227 static int find_keyslot_by_passphrase(struct crypt_device *cd,
228 const char *key_file,
232 struct luks_masterkey *mk;
233 char *password = NULL;
234 unsigned int passwordLen;
237 get_key(message,&password,&passwordLen, 0, key_file,
238 cd->timeout, flags, cd);
242 keyIndex = LUKS_open_key_with_hdr(cd->device, CRYPT_ANY_SLOT, password,
243 passwordLen, &cd->hdr, &mk, cd);
244 LUKS_dealloc_masterkey(mk);
250 static int device_check_and_adjust(struct crypt_device *cd,
252 uint64_t *size, uint64_t *offset,
255 struct device_infos infos;
257 if (get_device_infos(device, &infos, cd) < 0) {
258 log_err(cd, _("Cannot get info about device %s.\n"), device);
265 log_err(cd, _("Device %s has zero size.\n"), device);
268 if (*size < *offset) {
269 log_err(cd, _("Device %s is too small.\n"), device);
278 log_dbg("Calculated device size is %" PRIu64 " sectors (%s), offset %" PRIu64 ".",
279 *size, *read_only ? "RO" : "RW", *offset);
283 static int luks_remove_helper(struct crypt_device *cd,
285 const char *other_key_file,
286 const char *key_file,
289 crypt_keyslot_info ki;
292 if (key_slot == CRYPT_ANY_SLOT) {
293 key_slot = find_keyslot_by_passphrase(cd, key_file, 0,
294 _("Enter LUKS passphrase to be deleted: "));
300 log_std(cd, _("key slot %d selected for deletion.\n"), key_slot);
303 ki = crypt_keyslot_status(cd, key_slot);
304 if (ki == CRYPT_SLOT_INVALID) {
305 log_err(cd, _("Key slot %d is invalid, please select between 0 and %d.\n"),
306 key_slot, LUKS_NUMKEYS - 1);
310 if (ki <= CRYPT_SLOT_INACTIVE) {
311 log_err(cd, _("Key %d not active. Can't wipe.\n"), key_slot);
316 if (ki == CRYPT_SLOT_ACTIVE_LAST && cd->confirm &&
317 !(cd->confirm(_("This is the last keyslot."
318 " Device will become unusable after purging this key."),
319 cd->confirm_usrptr))) {
325 r = verify_other_keyslot(cd, other_key_file, 0, key_slot);
330 r = crypt_keyslot_destroy(cd, key_slot);
332 return (r < 0) ? r : 0;
335 static int create_device_helper(struct crypt_device *cd,
339 const char *cipher_mode,
340 const char *key_file,
352 crypt_status_info ci;
353 char *dm_cipher = NULL;
354 char *processed_key = NULL;
357 ci = crypt_status(cd, name);
358 if (ci == CRYPT_INVALID)
361 if (reload && ci < CRYPT_ACTIVE)
364 if (!reload && ci >= CRYPT_ACTIVE) {
365 log_err(cd, _("Device %s already exists.\n"), name);
369 if (key_size < 0 || key_size > 1024) {
370 log_err(cd, _("Invalid key size %d.\n"), key_size);
374 r = device_check_and_adjust(cd, cd->device, &size, &offset, &read_only);
378 if (cipher_mode && asprintf(&dm_cipher, "%s-%s", cipher, cipher_mode) < 0)
381 processed_key = process_key(cd, hash, key_file, key_size, key, keyLen);
385 r = dm_create_device(name, cd->device, dm_cipher ?: cipher, cd->type, uuid, size, skip, offset,
386 key_size, processed_key, read_only, reload);
389 safe_free(processed_key);
393 static int open_from_hdr_and_mk(struct crypt_device *cd,
394 struct luks_masterkey *mk,
398 uint64_t size, offset;
400 int read_only, no_uuid, r;
403 offset = crypt_get_data_offset(cd);
404 read_only = flags & CRYPT_ACTIVATE_READONLY;
405 no_uuid = flags & CRYPT_ACTIVATE_NO_UUID;
407 r = device_check_and_adjust(cd, cd->device, &size, &offset, &read_only);
411 if (asprintf(&cipher, "%s-%s", crypt_get_cipher(cd),
412 crypt_get_cipher_mode(cd)) < 0)
415 r = dm_create_device(name, cd->device, cipher, cd->type,
416 no_uuid ? NULL : crypt_get_uuid(cd),
417 size, 0, offset, mk->keyLength, mk->key,
423 static void log_wrapper(int level, const char *msg, void *usrptr)
425 void (*xlog)(int level, char *msg) = usrptr;
426 xlog(level, (char *)msg);
429 static int yesDialog_wrapper(const char *msg, void *usrptr)
431 int (*xyesDialog)(char *msg) = usrptr;
432 return xyesDialog((char*)msg);
435 int crypt_confirm(struct crypt_device *cd, const char *msg)
437 if (!cd || !cd->confirm)
440 return cd->confirm(msg, cd->confirm_usrptr);
443 static void key_from_terminal(struct crypt_device *cd, char *msg, char **key,
444 unsigned int *key_len, int force_verify)
449 *key = safe_alloc(MAX_TTY_PASSWORD_LEN);
452 r = cd->password(msg, *key, (size_t)key_len, cd->password_usrptr);
459 if (force_verify || cd->password_verify)
460 flags |= CRYPT_FLAG_VERIFY_IF_POSSIBLE;
461 get_key(msg, key, key_len, 0, NULL, cd->timeout, flags, cd);
465 static int volume_key_by_terminal_passphrase(struct crypt_device *cd, int keyslot,
466 struct luks_masterkey **mk)
468 char *prompt = NULL, *passphrase_read = NULL;
469 unsigned int passphrase_size_read;
470 int r = -EINVAL, tries = cd->tries;
472 if(asprintf(&prompt, _("Enter passphrase for %s: "), cd->device) < 0)
478 LUKS_dealloc_masterkey(*mk);
481 key_from_terminal(cd, prompt, &passphrase_read,
482 &passphrase_size_read, 0);
483 if(!passphrase_read) {
488 r = LUKS_open_key_with_hdr(cd->device, keyslot, passphrase_read,
489 passphrase_size_read, &cd->hdr, mk, cd);
490 safe_free(passphrase_read);
491 passphrase_read = NULL;
492 } while (r == -EPERM && (--tries > 0));
495 LUKS_dealloc_masterkey(*mk);
504 static void key_from_file(struct crypt_device *cd, char *msg,
505 char **key, unsigned int *key_len,
506 const char *key_file, size_t key_size)
508 get_key(msg, key, key_len, key_size, key_file, cd->timeout, 0, cd);
511 static int _crypt_init(struct crypt_device **cd,
513 struct crypt_options *options,
514 int load, int need_dm)
518 /* if it is plain device and mapping table is being reloaded
519 initialize it by name*/
520 init_by_name = (type && !strcmp(type, CRYPT_PLAIN) && load);
522 /* Some of old API calls do not require DM in kernel,
523 fake initialisation by initialise it with kernel_check disabled */
525 (void)dm_init(NULL, 0);
527 r = crypt_init_by_name(cd, options->name);
529 r = crypt_init(cd, options->device);
536 crypt_set_log_callback(*cd, log_wrapper, options->icb->log);
537 crypt_set_confirm_callback(*cd, yesDialog_wrapper, options->icb->yesDialog);
539 crypt_set_timeout(*cd, options->timeout);
540 crypt_set_password_retry(*cd, options->tries);
541 crypt_set_iterarion_time(*cd, options->iteration_time ?: 1000);
542 crypt_set_password_verify(*cd, options->flags & CRYPT_FLAG_VERIFY);
544 if (load && !init_by_name)
545 r = crypt_load(*cd, type, NULL);
547 if (!r && type && !(*cd)->type) {
548 (*cd)->type = strdup(type);
559 void crypt_set_log_callback(struct crypt_device *cd,
560 void (*log)(int level, const char *msg, void *usrptr),
567 cd->log_usrptr = usrptr;
571 void crypt_set_confirm_callback(struct crypt_device *cd,
572 int (*confirm)(const char *msg, void *usrptr),
575 cd->confirm = confirm;
576 cd->confirm_usrptr = usrptr;
579 void crypt_set_password_callback(struct crypt_device *cd,
580 int (*password)(const char *msg, char *buf, size_t length, void *usrptr),
583 cd->password = password;
584 cd->password_usrptr = usrptr;
587 /* OPTIONS: name, cipher, device, hash, key_file, key_size, key_slot,
588 * offset, size, skip, timeout, tries, passphrase_fd (ignored),
590 int crypt_create_device(struct crypt_options *options)
592 struct crypt_device *cd = NULL;
597 r = _crypt_init(&cd, CRYPT_PLAIN, options, 0, 1);
601 get_key(_("Enter passphrase: "), &key, &keyLen, options->key_size,
602 options->key_file, cd->timeout, options->flags, cd);
606 r = create_device_helper(cd, options->name, options->hash,
607 options->cipher, NULL, options->key_file, key, keyLen,
608 options->key_size, options->size, options->skip,
609 options->offset, NULL, options->flags & CRYPT_FLAG_READONLY,
617 /* OPTIONS: same as create above */
618 int crypt_update_device(struct crypt_options *options)
620 struct crypt_device *cd = NULL;
625 r = _crypt_init(&cd, CRYPT_PLAIN, options, 1, 1);
629 get_key(_("Enter passphrase: "), &key, &keyLen, options->key_size,
630 options->key_file, cd->timeout, options->flags, cd);
634 r = create_device_helper(cd, options->name, options->hash,
635 options->cipher, NULL, options->key_file, key, keyLen,
636 options->key_size, options->size, options->skip,
637 options->offset, NULL, options->flags & CRYPT_FLAG_READONLY,
645 /* OPTIONS: name, size, icb */
646 int crypt_resize_device(struct crypt_options *options)
648 struct crypt_device *cd = NULL;
649 char *device = NULL, *cipher = NULL, *uuid = NULL, *key = NULL;
651 uint64_t size, skip, offset;
652 int key_size, read_only, r;
654 log_dbg("Resizing device %s to %" PRIu64 " sectors.", options->name, options->size);
656 if (dm_init(NULL, 1) < 0)
659 r = dm_query_device(options->name, &device, &size, &skip, &offset,
660 &cipher, &key_size, &key, &read_only, NULL, &uuid);
662 log_err(NULL, _("Device %s is not active.\n"), options->name);
666 /* Try to determine type of device from UUID */
669 if (!strncmp(uuid, CRYPT_PLAIN, strlen(CRYPT_PLAIN))) {
673 } else if (!strncmp(uuid, CRYPT_LUKS1, strlen(CRYPT_LUKS1)))
677 if (!options->device)
678 options->device = device;
680 r = _crypt_init(&cd, type, options, 1, 1);
684 size = options->size;
685 r = device_check_and_adjust(cd, device, &size, &offset, &read_only);
689 r = dm_create_device(options->name, device, cipher, type,
690 crypt_get_uuid(cd), size, skip, offset,
691 key_size, key, read_only, 1);
695 if (options->device == device)
696 options->device = NULL;
704 /* OPTIONS: name, icb */
705 int crypt_query_device(struct crypt_options *options)
709 log_dbg("Query device %s.", options->name);
711 if (dm_init(NULL, 1) < 0)
714 r = dm_status_device(options->name);
720 r = dm_query_device(options->name, (char **)&options->device, &options->size,
721 &options->skip, &options->offset, (char **)&options->cipher,
722 &options->key_size, NULL, &read_only, NULL, NULL);
729 options->flags |= CRYPT_FLAG_READONLY;
731 options->flags |= CRYPT_FLAG_FREE_DEVICE;
732 options->flags |= CRYPT_FLAG_FREE_CIPHER;
737 /* OPTIONS: name, icb */
738 int crypt_remove_device(struct crypt_options *options)
740 struct crypt_device *cd = NULL;
743 r = crypt_init_by_name(&cd, options->name);
745 r = crypt_deactivate(cd, options->name);
752 /* OPTIONS: device, cipher, hash, align_payload, key_size (master key), key_slot
753 * new_key_file, iteration_time, timeout, flags, icb */
754 int crypt_luksFormat(struct crypt_options *options)
756 char cipherName[LUKS_CIPHERNAME_L];
757 char cipherMode[LUKS_CIPHERMODE_L];
759 unsigned int passwordLen;
760 struct crypt_device *cd = NULL;
761 struct crypt_params_luks1 cp = {
762 .hash = options->hash,
763 .data_alignment = options->align_payload
767 r = parse_into_name_and_mode(options->cipher, cipherName, cipherMode);
769 log_err(cd, _("No known cipher specification pattern detected.\n"));
773 if ((r = _crypt_init(&cd, CRYPT_LUKS1, options, 0, 1)))
776 if (options->key_slot >= LUKS_NUMKEYS && options->key_slot != CRYPT_ANY_SLOT) {
777 log_err(cd, _("Key slot %d is invalid, please select between 0 and %d.\n"),
778 options->key_slot, LUKS_NUMKEYS - 1);
783 get_key(_("Enter LUKS passphrase: "), &password, &passwordLen, 0,
784 options->new_key_file, options->timeout, options->flags, cd);
791 r = crypt_format(cd, CRYPT_LUKS1, cipherName, cipherMode,
792 NULL, NULL, options->key_size, &cp);
796 /* Add keyslot using internally stored volume key generated during format */
797 r = crypt_keyslot_add_by_volume_key(cd, options->key_slot, NULL, 0,
798 password, passwordLen);
802 return (r < 0) ? r : 0;
805 /* OPTIONS: name, device, key_size, key_file, timeout, tries, flags, icb */
806 int crypt_luksOpen(struct crypt_options *options)
808 struct crypt_device *cd = NULL;
815 r = _crypt_init(&cd, CRYPT_LUKS1, options, 1, 1);
819 if (options->flags & CRYPT_FLAG_READONLY)
820 flags |= CRYPT_ACTIVATE_READONLY;
822 if (options->flags & CRYPT_FLAG_NON_EXCLUSIVE_ACCESS)
823 flags |= CRYPT_ACTIVATE_NO_UUID;
825 if (options->key_file)
826 r = crypt_activate_by_keyfile(cd, options->name,
827 CRYPT_ANY_SLOT, options->key_file, options->key_size,
830 r = crypt_activate_by_passphrase(cd, options->name,
831 CRYPT_ANY_SLOT, options->passphrase,
832 options->passphrase ? strlen(options->passphrase) : 0,
836 return (r < 0) ? r : 0;
839 /* OPTIONS: device, keys_slot, key_file, timeout, flags, icb */
840 int crypt_luksKillSlot(struct crypt_options *options)
842 struct crypt_device *cd = NULL;
845 r = _crypt_init(&cd, CRYPT_LUKS1, options, 1, 1);
849 r = luks_remove_helper(cd, options->key_slot, options->key_file, NULL,
850 options->flags & CRYPT_FLAG_VERIFY_ON_DELKEY);
853 return (r < 0) ? r : 0;
856 /* OPTIONS: device, new_key_file, key_file, timeout, flags, icb */
857 int crypt_luksRemoveKey(struct crypt_options *options)
859 struct crypt_device *cd = NULL;
862 r = _crypt_init(&cd, CRYPT_LUKS1, options, 1, 1);
866 r = luks_remove_helper(cd, CRYPT_ANY_SLOT, options->key_file, options->new_key_file,
867 options->flags & CRYPT_FLAG_VERIFY_ON_DELKEY);
870 return (r < 0) ? r : 0;
874 /* OPTIONS: device, new_key_file, key_file, key_slot, flags,
875 iteration_time, timeout, icb */
876 int crypt_luksAddKey(struct crypt_options *options)
878 struct crypt_device *cd = NULL;
881 r = _crypt_init(&cd, CRYPT_LUKS1, options, 1, 1);
885 if (options->key_file || options->new_key_file)
886 r = crypt_keyslot_add_by_keyfile(cd, options->key_slot,
887 options->key_file, 0,
888 options->new_key_file, 0);
890 r = crypt_keyslot_add_by_passphrase(cd, options->key_slot,
894 return (r < 0) ? r : 0;
897 /* OPTIONS: device, icb */
898 int crypt_luksUUID(struct crypt_options *options)
900 struct crypt_device *cd = NULL;
904 r = _crypt_init(&cd, CRYPT_LUKS1, options, 1, 0);
908 uuid = (char *)crypt_get_uuid(cd);
909 log_std(cd, uuid ?: "");
915 /* OPTIONS: device, icb */
916 int crypt_isLuks(struct crypt_options *options)
918 struct crypt_device *cd = NULL;
921 log_dbg("Check device %s for LUKS header.", options->device);
924 log_err(cd, _("Cannot initialize crypto backend.\n"));
928 r = crypt_init(&cd, options->device);
932 /* Do print fail here, no need to crypt_load() */
933 r = LUKS_read_phdr(cd->device, &cd->hdr, 0, cd) ? -EINVAL : 0;
939 /* OPTIONS: device, icb */
940 int crypt_luksDump(struct crypt_options *options)
942 struct crypt_device *cd = NULL;
945 r = _crypt_init(&cd, CRYPT_LUKS1, options, 1, 0);
955 void crypt_get_error(char *buf, size_t size)
957 const char *error = get_error();
959 if (!buf || size < 1)
962 strncpy(buf, error, size - 1);
963 buf[size - 1] = '\0';
969 void crypt_put_options(struct crypt_options *options)
971 if (options->flags & CRYPT_FLAG_FREE_DEVICE) {
972 free((char *)options->device);
973 options->device = NULL;
974 options->flags &= ~CRYPT_FLAG_FREE_DEVICE;
976 if (options->flags & CRYPT_FLAG_FREE_CIPHER) {
977 free((char *)options->cipher);
978 options->cipher = NULL;
979 options->flags &= ~CRYPT_FLAG_FREE_CIPHER;
983 const char *crypt_get_dir(void)
988 /////////////////////////////////
993 int crypt_init(struct crypt_device **cd, const char *device)
995 struct crypt_device *h = NULL;
1000 log_dbg("Allocating crypt device %s context.", device);
1002 if (device && !device_ready(NULL, device, O_RDONLY))
1005 if (!(h = malloc(sizeof(struct crypt_device))))
1008 memset(h, 0, sizeof(*h));
1011 h->device = strdup(device);
1019 if (dm_init(h, 1) < 0) {
1024 h->iteration_time = 1000;
1025 h->password_verify = 0;
1031 int crypt_init_by_name(struct crypt_device **cd, const char *name)
1033 crypt_status_info ci;
1034 char *device = NULL;
1037 log_dbg("Allocating crypt device context by device %s.", name);
1039 ci = crypt_status(NULL, name);
1040 if (ci == CRYPT_INVALID)
1043 if (ci < CRYPT_ACTIVE) {
1044 log_err(NULL, _("Device %s is not active.\n"), name);
1048 r = dm_query_device(name, &device, NULL, NULL, NULL,
1049 NULL, NULL, NULL, NULL, NULL, NULL);
1051 /* Underlying device disappeared but mapping still active */
1052 if (r >= 0 && !device)
1053 log_verbose(NULL, _("Underlying device for crypt device %s disappeared.\n"),
1057 r = crypt_init(cd, device);
1063 static int _crypt_format_plain(struct crypt_device *cd,
1065 const char *cipher_mode,
1067 struct crypt_params_plain *params)
1069 if (!cipher || !cipher_mode) {
1070 log_err(cd, _("Invalid plain crypt parameters.\n"));
1074 if (cd->volume_key->keyLength > 1024) {
1075 log_err(cd, _("Invalid key size.\n"));
1079 cd->plain_cipher = strdup(cipher);
1080 cd->plain_cipher_mode = strdup(cipher_mode);
1083 cd->plain_uuid = strdup(uuid);
1085 if (params && params->hash)
1086 cd->plain_hdr.hash = strdup(params->hash);
1088 cd->plain_hdr.offset = params ? params->offset : 0;
1089 cd->plain_hdr.skip = params ? params->skip : 0;
1091 if (!cd->plain_cipher || !cd->plain_cipher_mode)
1097 static int _crypt_format_luks1(struct crypt_device *cd,
1099 const char *cipher_mode,
1101 struct crypt_params_luks1 *params)
1104 unsigned long required_alignment = DEFAULT_ALIGNMENT;
1105 unsigned long alignment_offset = 0;
1108 log_err(cd, _("Can't format LUKS without device.\n"));
1112 if (params && params->data_alignment)
1113 required_alignment = params->data_alignment * SECTOR_SIZE;
1115 get_topology_alignment(cd->device, &required_alignment,
1116 &alignment_offset, DEFAULT_ALIGNMENT);
1118 r = LUKS_generate_phdr(&cd->hdr, cd->volume_key, cipher, cipher_mode,
1119 (params && params->hash) ? params->hash : "sha1",
1121 required_alignment / SECTOR_SIZE,
1122 alignment_offset / SECTOR_SIZE,
1123 cd->iteration_time, &cd->PBKDF2_per_sec, cd);
1127 /* Wipe first 8 sectors - fs magic numbers etc. */
1128 r = wipe_device_header(cd->device, 8);
1130 log_err(cd, _("Can't wipe header on device %s.\n"), cd->device);
1134 r = LUKS_write_phdr(cd->device, &cd->hdr, cd);
1139 int crypt_format(struct crypt_device *cd,
1142 const char *cipher_mode,
1144 const char *volume_key,
1145 size_t volume_key_size,
1150 log_dbg("Formatting device %s as type %s.", cd->device ?: "(none)", cd->type ?: "(none)");
1155 /* Some hash functions need initialized gcrypt library */
1156 if (init_crypto()) {
1157 log_err(cd, _("Cannot initialize crypto backend.\n"));
1162 cd->volume_key = LUKS_alloc_masterkey(volume_key_size,
1165 cd->volume_key = LUKS_generate_masterkey(volume_key_size);
1171 r = _crypt_format_plain(cd, cipher, cipher_mode,
1173 else if (isLUKS(type))
1174 r = _crypt_format_luks1(cd, cipher, cipher_mode,
1177 /* FIXME: allow plugins here? */
1178 log_err(cd, _("Unknown crypt device type %s requested.\n"), type);
1182 if (!r && !(cd->type = strdup(type)))
1186 LUKS_dealloc_masterkey(cd->volume_key);
1187 cd->volume_key = NULL;
1193 int crypt_load(struct crypt_device *cd,
1194 const char *requested_type,
1197 struct luks_phdr hdr;
1200 log_dbg("Trying to load %s crypt type from device %s.",
1201 requested_type ?: "any", cd->device ?: "(none)");
1206 if (requested_type && !isLUKS(requested_type))
1209 /* Some hash functions need initialized gcrypt library */
1210 if (init_crypto()) {
1211 log_err(cd, _("Cannot initialize crypto backend.\n"));
1215 r = LUKS_read_phdr(cd->device, &hdr, 1, cd);
1218 memcpy(&cd->hdr, &hdr, sizeof(hdr));
1219 cd->type = strdup(requested_type);
1227 int crypt_header_backup(struct crypt_device *cd,
1228 const char *requested_type,
1229 const char *backup_file)
1231 if ((requested_type && !isLUKS(requested_type)) || !backup_file)
1234 /* Some hash functions need initialized gcrypt library */
1235 if (init_crypto()) {
1236 log_err(cd, _("Cannot initialize crypto backend.\n"));
1240 log_dbg("Requested header backup of device %s (%s) to "
1241 "file %s.", cd->device, requested_type, backup_file);
1243 return LUKS_hdr_backup(backup_file, cd->device, &cd->hdr, cd);
1246 int crypt_header_restore(struct crypt_device *cd,
1247 const char *requested_type,
1248 const char *backup_file)
1250 if (requested_type && !isLUKS(requested_type))
1253 /* Some hash functions need initialized gcrypt library */
1254 if (init_crypto()) {
1255 log_err(cd, _("Cannot initialize crypto backend.\n"));
1259 log_dbg("Requested header restore to device %s (%s) from "
1260 "file %s.", cd->device, requested_type, backup_file);
1262 return LUKS_hdr_restore(backup_file, cd->device, &cd->hdr, cd);
1265 void crypt_free(struct crypt_device *cd)
1268 log_dbg("Releasing crypt device %s context.", cd->device);
1272 LUKS_dealloc_masterkey(cd->volume_key);
1277 /* used in plain device only */
1278 free((char*)cd->plain_hdr.hash);
1279 free(cd->plain_cipher);
1280 free(cd->plain_cipher_mode);
1281 free(cd->plain_uuid);
1287 int crypt_suspend(struct crypt_device *cd,
1290 crypt_status_info ci;
1291 int r, suspended = 0;
1293 log_dbg("Suspending volume %s.", name);
1295 ci = crypt_status(NULL, name);
1296 if (ci < CRYPT_ACTIVE) {
1297 log_err(cd, _("Volume %s is not active.\n"), name);
1301 if (!cd && dm_init(NULL, 1) < 0)
1304 r = dm_query_device(name, NULL, NULL, NULL, NULL,
1305 NULL, NULL, NULL, NULL, &suspended, NULL);
1310 log_err(cd, _("Volume %s is already suspended.\n"), name);
1315 r = dm_suspend_and_wipe_key(name);
1317 log_err(cd, "Suspend is not supported for device %s.\n", name);
1319 log_err(cd, "Error during suspending device %s.\n", name);
1326 int crypt_resume_by_passphrase(struct crypt_device *cd,
1329 const char *passphrase,
1330 size_t passphrase_size)
1332 struct luks_masterkey *mk = NULL;
1333 int r, suspended = 0;
1335 log_dbg("Resuming volume %s.", name);
1337 if (!isLUKS(cd->type)) {
1338 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1343 r = dm_query_device(name, NULL, NULL, NULL, NULL,
1344 NULL, NULL, NULL, NULL, &suspended, NULL);
1349 log_err(cd, _("Volume %s is not suspended.\n"), name);
1354 r = LUKS_open_key_with_hdr(cd->device, keyslot, passphrase,
1355 passphrase_size, &cd->hdr, &mk, cd);
1357 r = volume_key_by_terminal_passphrase(cd, keyslot, &mk);
1361 r = dm_resume_and_reinstate_key(name, mk->keyLength, mk->key);
1363 log_err(cd, "Resume is not supported for device %s.\n", name);
1365 log_err(cd, "Error during resuming device %s.\n", name);
1369 LUKS_dealloc_masterkey(mk);
1370 return r < 0 ? r : keyslot;
1373 int crypt_resume_by_keyfile(struct crypt_device *cd,
1376 const char *keyfile,
1377 size_t keyfile_size)
1379 struct luks_masterkey *mk = NULL;
1380 char *passphrase_read = NULL;
1381 unsigned int passphrase_size_read;
1382 int r, suspended = 0;
1384 log_dbg("Resuming volume %s.", name);
1386 if (!isLUKS(cd->type)) {
1387 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1392 r = dm_query_device(name, NULL, NULL, NULL, NULL,
1393 NULL, NULL, NULL, NULL, &suspended, NULL);
1398 log_err(cd, _("Volume %s is not suspended.\n"), name);
1405 key_from_file(cd, _("Enter passphrase: "), &passphrase_read,
1406 &passphrase_size_read, keyfile, keyfile_size);
1408 if(!passphrase_read)
1411 r = LUKS_open_key_with_hdr(cd->device, keyslot, passphrase_read,
1412 passphrase_size_read, &cd->hdr, &mk, cd);
1413 safe_free(passphrase_read);
1418 r = dm_resume_and_reinstate_key(name, mk->keyLength, mk->key);
1420 log_err(cd, "Error during resuming device %s.\n", name);
1424 LUKS_dealloc_masterkey(mk);
1425 return r < 0 ? r : keyslot;
1428 // slot manipulation
1429 int crypt_keyslot_add_by_passphrase(struct crypt_device *cd,
1430 int keyslot, // -1 any
1431 const char *passphrase, // NULL -> terminal
1432 size_t passphrase_size,
1433 const char *new_passphrase, // NULL -> terminal
1434 size_t new_passphrase_size)
1436 struct luks_masterkey *mk = NULL;
1437 char *password = NULL, *new_password = NULL;
1438 unsigned int passwordLen, new_passwordLen;
1441 log_dbg("Adding new keyslot, existing passphrase %sprovided,"
1442 "new passphrase %sprovided.",
1443 passphrase ? "" : "not ", new_passphrase ? "" : "not ");
1445 if (!isLUKS(cd->type)) {
1446 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1450 r = keyslot_verify_or_find_empty(cd, &keyslot);
1454 if (!LUKS_keyslot_active_count(&cd->hdr)) {
1455 /* No slots used, try to use pre-generated key in header */
1456 if (cd->volume_key) {
1457 mk = LUKS_alloc_masterkey(cd->volume_key->keyLength, cd->volume_key->key);
1458 r = mk ? 0 : -ENOMEM;
1460 log_err(cd, _("Cannot add key slot, all slots disabled and no volume key provided.\n"));
1463 } else if (passphrase) {
1464 /* Passphrase provided, use it to unlock existing keyslot */
1465 r = LUKS_open_key_with_hdr(cd->device, CRYPT_ANY_SLOT, passphrase,
1466 passphrase_size, &cd->hdr, &mk, cd);
1468 /* Passphrase not provided, ask first and use it to unlock existing keyslot */
1469 key_from_terminal(cd, _("Enter any passphrase: "),
1470 &password, &passwordLen, 0);
1476 r = LUKS_open_key_with_hdr(cd->device, CRYPT_ANY_SLOT, password,
1477 passwordLen, &cd->hdr, &mk, cd);
1478 safe_free(password);
1484 if (new_passphrase) {
1485 new_password = (char *)new_passphrase;
1486 new_passwordLen = new_passphrase_size;
1488 key_from_terminal(cd, _("Enter new passphrase for key slot: "),
1489 &new_password, &new_passwordLen, 1);
1496 r = LUKS_set_key(cd->device, keyslot, new_password, new_passwordLen,
1497 &cd->hdr, mk, cd->iteration_time, &cd->PBKDF2_per_sec, cd);
1502 if (!new_passphrase)
1503 safe_free(new_password);
1504 LUKS_dealloc_masterkey(mk);
1505 return r ?: keyslot;
1508 int crypt_keyslot_add_by_keyfile(struct crypt_device *cd,
1510 const char *keyfile,
1511 size_t keyfile_size,
1512 const char *new_keyfile,
1513 size_t new_keyfile_size)
1515 struct luks_masterkey *mk=NULL;
1516 char *password=NULL; unsigned int passwordLen;
1517 char *new_password = NULL; unsigned int new_passwordLen;
1520 log_dbg("Adding new keyslot, existing keyfile %s, new keyfile %s.",
1521 keyfile ?: "[none]", new_keyfile ?: "[none]");
1523 if (!isLUKS(cd->type)) {
1524 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1528 r = keyslot_verify_or_find_empty(cd, &keyslot);
1532 if (!LUKS_keyslot_active_count(&cd->hdr)) {
1533 /* No slots used, try to use pre-generated key in header */
1534 if (cd->volume_key) {
1535 mk = LUKS_alloc_masterkey(cd->volume_key->keyLength, cd->volume_key->key);
1536 r = mk ? 0 : -ENOMEM;
1538 log_err(cd, _("Cannot add key slot, all slots disabled and no volume key provided.\n"));
1542 /* Read password from file of (if NULL) from terminal */
1544 key_from_file(cd, _("Enter any passphrase: "), &password, &passwordLen,
1545 keyfile, keyfile_size);
1547 key_from_terminal(cd, _("Enter any passphrase: "),
1548 &password, &passwordLen, 0);
1553 r = LUKS_open_key_with_hdr(cd->device, CRYPT_ANY_SLOT, password, passwordLen,
1555 safe_free(password);
1562 key_from_file(cd, _("Enter new passphrase for key slot: "),
1563 &new_password, &new_passwordLen, new_keyfile,
1566 key_from_terminal(cd, _("Enter new passphrase for key slot: "),
1567 &new_password, &new_passwordLen, 1);
1574 r = LUKS_set_key(cd->device, keyslot, new_password, new_passwordLen,
1575 &cd->hdr, mk, cd->iteration_time, &cd->PBKDF2_per_sec, cd);
1577 safe_free(new_password);
1578 LUKS_dealloc_masterkey(mk);
1579 return r < 0 ? r : keyslot;
1582 int crypt_keyslot_add_by_volume_key(struct crypt_device *cd,
1584 const char *volume_key,
1585 size_t volume_key_size,
1586 const char *passphrase,
1587 size_t passphrase_size)
1589 struct luks_masterkey *mk = NULL;
1591 char *new_password = NULL; unsigned int new_passwordLen;
1593 log_dbg("Adding new keyslot %d using volume key.", keyslot);
1595 if (!isLUKS(cd->type)) {
1596 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1601 mk = LUKS_alloc_masterkey(volume_key_size, volume_key);
1602 else if (cd->volume_key)
1603 mk = LUKS_alloc_masterkey(cd->volume_key->keyLength, cd->volume_key->key);
1608 r = LUKS_verify_master_key(&cd->hdr, mk);
1610 log_err(cd, _("Volume key does not match the volume.\n"));
1614 r = keyslot_verify_or_find_empty(cd, &keyslot);
1619 key_from_terminal(cd, _("Enter new passphrase for key slot: "),
1620 &new_password, &new_passwordLen, 1);
1621 passphrase = new_password;
1622 passphrase_size = new_passwordLen;
1625 r = LUKS_set_key(cd->device, keyslot, passphrase, passphrase_size,
1626 &cd->hdr, mk, cd->iteration_time, &cd->PBKDF2_per_sec, cd);
1629 safe_free(new_password);
1630 LUKS_dealloc_masterkey(mk);
1631 return r ?: keyslot;
1634 int crypt_keyslot_destroy(struct crypt_device *cd, int keyslot)
1636 crypt_keyslot_info ki;
1638 log_dbg("Destroying keyslot %d.", keyslot);
1640 if (!isLUKS(cd->type)) {
1641 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1645 ki = crypt_keyslot_status(cd, keyslot);
1646 if (ki == CRYPT_SLOT_INVALID) {
1647 log_err(cd, _("Key slot %d is invalid.\n"), keyslot);
1651 if (ki == CRYPT_SLOT_INACTIVE) {
1652 log_err(cd, _("Key slot %d is not used.\n"), keyslot);
1656 return LUKS_del_key(cd->device, keyslot, &cd->hdr, cd);
1659 // activation/deactivation of device mapping
1660 int crypt_activate_by_passphrase(struct crypt_device *cd,
1663 const char *passphrase,
1664 size_t passphrase_size,
1667 crypt_status_info ci;
1668 struct luks_masterkey *mk = NULL;
1669 char *prompt = NULL;
1672 log_dbg("%s volume %s [keyslot %d] using %spassphrase.",
1673 name ? "Activating" : "Checking", name ?: "",
1674 keyslot, passphrase ? "" : "[none] ");
1679 /* plain, use hashed passphrase */
1680 if (isPLAIN(cd->type))
1681 return create_device_helper(cd, name, cd->plain_hdr.hash,
1682 cd->plain_cipher, cd->plain_cipher_mode, NULL, passphrase, passphrase_size,
1683 cd->volume_key->keyLength, 0, cd->plain_hdr.skip,
1684 cd->plain_hdr.offset, cd->plain_uuid, flags & CRYPT_ACTIVATE_READONLY, 0, 0);
1687 ci = crypt_status(NULL, name);
1688 if (ci == CRYPT_INVALID)
1690 else if (ci >= CRYPT_ACTIVE) {
1691 log_err(cd, _("Device %s already exists.\n"), name);
1696 if(asprintf(&prompt, _("Enter passphrase for %s: "), cd->device) < 0)
1699 /* provided passphrase, do not retry */
1701 r = LUKS_open_key_with_hdr(cd->device, keyslot, passphrase,
1702 passphrase_size, &cd->hdr, &mk, cd);
1704 r = volume_key_by_terminal_passphrase(cd, keyslot, &mk);
1709 r = open_from_hdr_and_mk(cd, mk, name, flags);
1712 LUKS_dealloc_masterkey(mk);
1715 return r < 0 ? r : keyslot;
1718 int crypt_activate_by_keyfile(struct crypt_device *cd,
1721 const char *keyfile,
1722 size_t keyfile_size,
1725 crypt_status_info ci;
1726 struct luks_masterkey *mk = NULL;
1727 char *passphrase_read = NULL;
1728 unsigned int passphrase_size_read;
1731 log_dbg("Activating volume %s [keyslot %d] using keyfile %s.",
1732 name, keyslot, keyfile ?: "[none]");
1734 if (!isLUKS(cd->type)) {
1735 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1740 ci = crypt_status(NULL, name);
1741 if (ci == CRYPT_INVALID)
1743 else if (ci >= CRYPT_ACTIVE) {
1744 log_err(cd, _("Device %s already exists.\n"), name);
1752 key_from_file(cd, _("Enter passphrase: "), &passphrase_read,
1753 &passphrase_size_read, keyfile, keyfile_size);
1754 if(!passphrase_read)
1757 r = LUKS_open_key_with_hdr(cd->device, keyslot, passphrase_read,
1758 passphrase_size_read, &cd->hdr, &mk, cd);
1759 safe_free(passphrase_read);
1764 r = open_from_hdr_and_mk(cd, mk, name, flags);
1767 LUKS_dealloc_masterkey(mk);
1769 return r < 0 ? r : keyslot;
1772 int crypt_activate_by_volume_key(struct crypt_device *cd,
1774 const char *volume_key,
1775 size_t volume_key_size,
1778 crypt_status_info ci;
1779 struct luks_masterkey *mk;
1782 log_dbg("Activating volume %s by volume key.", name);
1784 /* use key directly, no hash */
1785 if (isPLAIN(cd->type))
1786 return create_device_helper(cd, name, NULL,
1787 cd->plain_cipher, cd->plain_cipher_mode, NULL, volume_key, volume_key_size,
1788 cd->volume_key->keyLength, 0, cd->plain_hdr.skip,
1789 cd->plain_hdr.offset, cd->plain_uuid, flags & CRYPT_ACTIVATE_READONLY, 0, 0);
1791 if (!isLUKS(cd->type)) {
1792 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1797 ci = crypt_status(NULL, name);
1798 if (ci == CRYPT_INVALID)
1800 else if (ci >= CRYPT_ACTIVE) {
1801 log_err(cd, _("Device %s already exists.\n"), name);
1806 mk = LUKS_alloc_masterkey(volume_key_size, volume_key);
1809 r = LUKS_verify_master_key(&cd->hdr, mk);
1812 log_err(cd, _("Volume key does not match the volume.\n"));
1815 r = open_from_hdr_and_mk(cd, mk, name, flags);
1817 LUKS_dealloc_masterkey(mk);
1822 int crypt_deactivate(struct crypt_device *cd, const char *name)
1829 log_dbg("Deactivating volume %s.", name);
1831 if (!cd && dm_init(NULL, 1) < 0)
1834 switch (crypt_status(cd, name)) {
1836 r = dm_remove_device(name, 0, 0);
1839 log_err(cd, _("Device %s is busy.\n"), name);
1842 case CRYPT_INACTIVE:
1843 log_err(cd, _("Device %s is not active.\n"), name);
1847 log_err(cd, _("Invalid device %s.\n"), name);
1857 // misc helper functions
1858 int crypt_volume_key_get(struct crypt_device *cd,
1861 size_t *volume_key_size,
1862 const char *passphrase,
1863 size_t passphrase_size)
1865 struct luks_masterkey *mk;
1866 char *processed_key = NULL;
1869 key_len = crypt_get_volume_key_size(cd);
1870 if (key_len > *volume_key_size) {
1871 log_err(cd, _("Volume key buffer too small.\n"));
1875 if (isPLAIN(cd->type) && cd->plain_hdr.hash) {
1876 processed_key = process_key(cd, cd->plain_hdr.hash, NULL, key_len,
1877 passphrase, passphrase_size);
1878 if (!processed_key) {
1879 log_err(cd, _("Cannot retrieve volume key for plain device.\n"));
1882 memcpy(volume_key, processed_key, key_len);
1883 *volume_key_size = key_len;
1884 safe_free(processed_key);
1888 if (isLUKS(cd->type)) {
1889 r = LUKS_open_key_with_hdr(cd->device, keyslot, passphrase,
1890 passphrase_size, &cd->hdr, &mk, cd);
1893 memcpy(volume_key, mk->key, mk->keyLength);
1894 *volume_key_size = mk->keyLength;
1897 LUKS_dealloc_masterkey(mk);
1901 log_err(cd, _("This operation is not supported for %s crypt device.\n"), cd->type ?: "(none)");
1905 int crypt_volume_key_verify(struct crypt_device *cd,
1906 const char *volume_key,
1907 size_t volume_key_size)
1909 struct luks_masterkey *mk;
1912 if (!isLUKS(cd->type)) {
1913 log_err(cd, _("This operation is supported only for LUKS device.\n"));
1917 mk = LUKS_alloc_masterkey(volume_key_size, volume_key);
1921 r = LUKS_verify_master_key(&cd->hdr, mk);
1924 log_err(cd, _("Volume key does not match the volume.\n"));
1926 LUKS_dealloc_masterkey(mk);
1931 void crypt_set_timeout(struct crypt_device *cd, uint64_t timeout_sec)
1933 log_dbg("Timeout set to %" PRIu64 " miliseconds.", timeout_sec);
1934 cd->timeout = timeout_sec;
1937 void crypt_set_password_retry(struct crypt_device *cd, int tries)
1939 log_dbg("Password retry count set to %d.", tries);
1943 void crypt_set_iterarion_time(struct crypt_device *cd, uint64_t iteration_time_ms)
1945 log_dbg("Iteration time set to %" PRIu64 " miliseconds.", iteration_time_ms);
1946 cd->iteration_time = iteration_time_ms;
1949 void crypt_set_password_verify(struct crypt_device *cd, int password_verify)
1951 log_dbg("Password verification %s.", password_verify ? "enabled" : "disabled");
1952 cd->password_verify = password_verify ? 1 : 0;
1955 int crypt_memory_lock(struct crypt_device *cd, int lock)
1957 return lock ? crypt_memlock_inc(cd) : crypt_memlock_dec(cd);
1961 crypt_status_info crypt_status(struct crypt_device *cd, const char *name)
1965 if (!cd && dm_init(NULL, 1) < 0)
1966 return CRYPT_INVALID;
1968 r = dm_status_device(name);
1973 if (r < 0 && r != -ENODEV)
1974 return CRYPT_INVALID;
1977 return CRYPT_ACTIVE;
1982 return CRYPT_INACTIVE;
1985 static void hexprintICB(struct crypt_device *cd, char *d, int n)
1988 for(i = 0; i < n; i++)
1989 log_std(cd, "%02hhx ", (char)d[i]);
1992 int crypt_dump(struct crypt_device *cd)
1995 if (!isLUKS(cd->type)) { //FIXME
1996 log_err(cd, _("This operation is supported only for LUKS device.\n"));
2000 log_std(cd, "LUKS header information for %s\n\n", cd->device);
2001 log_std(cd, "Version: \t%d\n", cd->hdr.version);
2002 log_std(cd, "Cipher name: \t%s\n", cd->hdr.cipherName);
2003 log_std(cd, "Cipher mode: \t%s\n", cd->hdr.cipherMode);
2004 log_std(cd, "Hash spec: \t%s\n", cd->hdr.hashSpec);
2005 log_std(cd, "Payload offset:\t%d\n", cd->hdr.payloadOffset);
2006 log_std(cd, "MK bits: \t%d\n", cd->hdr.keyBytes * 8);
2007 log_std(cd, "MK digest: \t");
2008 hexprintICB(cd, cd->hdr.mkDigest, LUKS_DIGESTSIZE);
2010 log_std(cd, "MK salt: \t");
2011 hexprintICB(cd, cd->hdr.mkDigestSalt, LUKS_SALTSIZE/2);
2012 log_std(cd, "\n \t");
2013 hexprintICB(cd, cd->hdr.mkDigestSalt+LUKS_SALTSIZE/2, LUKS_SALTSIZE/2);
2015 log_std(cd, "MK iterations: \t%d\n", cd->hdr.mkDigestIterations);
2016 log_std(cd, "UUID: \t%s\n\n", cd->hdr.uuid);
2017 for(i = 0; i < LUKS_NUMKEYS; i++) {
2018 if(cd->hdr.keyblock[i].active == LUKS_KEY_ENABLED) {
2019 log_std(cd, "Key Slot %d: ENABLED\n",i);
2020 log_std(cd, "\tIterations: \t%d\n",
2021 cd->hdr.keyblock[i].passwordIterations);
2022 log_std(cd, "\tSalt: \t");
2023 hexprintICB(cd, cd->hdr.keyblock[i].passwordSalt,
2025 log_std(cd, "\n\t \t");
2026 hexprintICB(cd, cd->hdr.keyblock[i].passwordSalt +
2027 LUKS_SALTSIZE/2, LUKS_SALTSIZE/2);
2030 log_std(cd, "\tKey material offset:\t%d\n",
2031 cd->hdr.keyblock[i].keyMaterialOffset);
2032 log_std(cd, "\tAF stripes: \t%d\n",
2033 cd->hdr.keyblock[i].stripes);
2036 log_std(cd, "Key Slot %d: DISABLED\n", i);
2041 const char *crypt_get_cipher(struct crypt_device *cd)
2043 if (isPLAIN(cd->type))
2044 return cd->plain_cipher;
2046 if (isLUKS(cd->type))
2047 return cd->hdr.cipherName;
2052 const char *crypt_get_cipher_mode(struct crypt_device *cd)
2054 if (isPLAIN(cd->type))
2055 return cd->plain_cipher_mode;
2057 if (isLUKS(cd->type))
2058 return cd->hdr.cipherMode;
2063 const char *crypt_get_uuid(struct crypt_device *cd)
2065 if (isLUKS(cd->type))
2066 return cd->hdr.uuid;
2071 int crypt_get_volume_key_size(struct crypt_device *cd)
2073 if (isPLAIN(cd->type))
2074 return cd->volume_key->keyLength;
2076 if (isLUKS(cd->type))
2077 return cd->hdr.keyBytes;
2082 uint64_t crypt_get_data_offset(struct crypt_device *cd)
2084 if (isPLAIN(cd->type))
2085 return cd->plain_hdr.offset;
2087 if (isLUKS(cd->type))
2088 return cd->hdr.payloadOffset;
2093 crypt_keyslot_info crypt_keyslot_status(struct crypt_device *cd, int keyslot)
2095 if (!isLUKS(cd->type)) {
2096 log_err(cd, _("This operation is supported only for LUKS device.\n"));
2097 return CRYPT_SLOT_INVALID;
2100 return LUKS_keyslot_info(&cd->hdr, keyslot);