/* * cryptsetup - setup cryptographic volumes for dm-crypt * * Copyright (C) 2004, Christophe Saout * Copyright (C) 2004-2007, Clemens Fruhwirth * Copyright (C) 2009-2012, Red Hat, Inc. All rights reserved. * Copyright (C) 2009-2012, Milan Broz * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "cryptsetup.h" static const char *opt_cipher = NULL; static const char *opt_hash = NULL; static int opt_verify_passphrase = 0; static const char *opt_key_file = NULL; static int opt_keyfiles_count = 0; static const char *opt_keyfiles[MAX_KEYFILES]; static const char *opt_master_key_file = NULL; static const char *opt_header_backup_file = NULL; static const char *opt_uuid = NULL; static const char *opt_header_device = NULL; static const char *opt_type = "luks"; static int opt_key_size = 0; static long opt_keyfile_size = 0; static long opt_new_keyfile_size = 0; static long opt_keyfile_offset = 0; static long opt_new_keyfile_offset = 0; static int opt_key_slot = CRYPT_ANY_SLOT; static uint64_t opt_size = 0; static uint64_t opt_offset = 0; static uint64_t opt_skip = 0; static int opt_skip_valid = 0; static int opt_readonly = 0; static int opt_iteration_time = DEFAULT_LUKS1_ITER_TIME; static int opt_version_mode = 0; static int opt_timeout = 0; static int opt_tries = 3; static int opt_align_payload = 0; static int opt_random = 0; static int opt_urandom = 0; static int opt_dump_master_key = 0; static int opt_shared = 0; static int opt_allow_discards = 0; static int opt_test_passphrase = 0; static int opt_hidden = 0; static const char **action_argv; static int action_argc; static const char *null_action_argv[] = {NULL, NULL}; static int _verify_passphrase(int def) { /* Batch mode switch off verify - if not overrided by -y */ if (opt_verify_passphrase) def = 1; else if (opt_batch_mode) def = 0; /* Non-tty input doesn't allow verify */ if (def && !isatty(STDIN_FILENO)) { if (opt_verify_passphrase) log_err(_("Can't do passphrase verification on non-tty inputs.\n")); def = 0; } return def; } static int action_open_plain(void) { struct crypt_device *cd = NULL; char cipher[MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN]; struct crypt_params_plain params = { .hash = opt_hash ?: DEFAULT_PLAIN_HASH, .skip = opt_skip, .offset = opt_offset, .size = opt_size, }; char *password = NULL; size_t passwordLen; size_t key_size = (opt_key_size ?: DEFAULT_PLAIN_KEYBITS) / 8; uint32_t activate_flags = 0; int r; if (params.hash && !strcmp(params.hash, "plain")) params.hash = NULL; /* FIXME: temporary hack */ if (opt_key_file && strcmp(opt_key_file, "-")) params.hash = NULL; if ((opt_keyfile_offset || opt_keyfile_size) && opt_key_file) log_std(("Ignoring keyfile offset and size options, keyfile read " "size is always the same as encryption key size.\n")); r = crypt_parse_name_and_mode(opt_cipher ?: DEFAULT_CIPHER(PLAIN), cipher, NULL, cipher_mode); if (r < 0) { log_err("No known cipher specification pattern detected.\n"); goto out; } if ((r = crypt_init(&cd, action_argv[0]))) goto out; crypt_set_timeout(cd, opt_timeout); crypt_set_password_retry(cd, opt_tries); r = crypt_format(cd, CRYPT_PLAIN, cipher, cipher_mode, NULL, NULL, key_size, ¶ms); check_signal(&r); if (r < 0) goto out; if (opt_readonly) activate_flags |= CRYPT_ACTIVATE_READONLY; if (opt_shared) activate_flags |= CRYPT_ACTIVATE_SHARED; if (opt_allow_discards) activate_flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS; if (opt_key_file) /* With hashing, read the whole keyfile */ r = crypt_activate_by_keyfile_offset(cd, action_argv[1], CRYPT_ANY_SLOT, opt_key_file, params.hash ? 0 : key_size, 0, activate_flags); else { r = tools_get_key(_("Enter passphrase: "), &password, &passwordLen, opt_keyfile_offset, opt_keyfile_size, NULL, opt_timeout, _verify_passphrase(0), 0, cd); if (r < 0) goto out; r = crypt_activate_by_passphrase(cd, action_argv[1], CRYPT_ANY_SLOT, password, passwordLen, activate_flags); } out: crypt_free(cd); crypt_safe_free(password); return r; } static int action_open_loopaes(void) { struct crypt_device *cd = NULL; struct crypt_params_loopaes params = { .hash = opt_hash ?: NULL, .offset = opt_offset, .skip = opt_skip_valid ? opt_skip : opt_offset, }; unsigned int key_size = (opt_key_size ?: DEFAULT_LOOPAES_KEYBITS) / 8; uint32_t activate_flags = 0; int r; if (!opt_key_file) { log_err(_("Option --key-file is required.\n")); return -EINVAL; } if (opt_readonly) activate_flags |= CRYPT_ACTIVATE_READONLY; if (opt_allow_discards) activate_flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS; if ((r = crypt_init(&cd, action_argv[0]))) goto out; r = crypt_format(cd, CRYPT_LOOPAES, opt_cipher ?: DEFAULT_LOOPAES_CIPHER, NULL, NULL, NULL, key_size, ¶ms); check_signal(&r); if (r < 0) goto out; r = crypt_activate_by_keyfile_offset(cd, action_argv[1], CRYPT_ANY_SLOT, opt_key_file, opt_keyfile_size, opt_keyfile_size, activate_flags); out: crypt_free(cd); return r; } static int action_open_tcrypt(void) { struct crypt_device *cd = NULL; struct crypt_params_tcrypt params = { .keyfiles = opt_keyfiles, .keyfiles_count = opt_keyfiles_count, .flags = CRYPT_TCRYPT_LEGACY_MODES, }; const char *activated_name; uint32_t flags = 0; int r; activated_name = opt_test_passphrase ? NULL : action_argv[1]; if ((r = crypt_init(&cd, action_argv[0]))) goto out; /* TCRYPT header is encrypted, get passphrase now */ r = tools_get_key(_("Enter passphrase: "), CONST_CAST(char**)¶ms.passphrase, ¶ms.passphrase_size, 0, 0, NULL, opt_timeout, _verify_passphrase(0), 0, cd); if (r < 0) goto out; if (opt_hidden) params.flags |= CRYPT_TCRYPT_HIDDEN_HEADER; r = crypt_load(cd, CRYPT_TCRYPT, ¶ms); check_signal(&r); if (r < 0) goto out; if (opt_readonly) flags |= CRYPT_ACTIVATE_READONLY; if (activated_name) r = crypt_activate_by_volume_key(cd, activated_name, NULL, 0, flags); out: crypt_free(cd); crypt_safe_free(CONST_CAST(char*)params.passphrase); return r; } static int tcryptDump_with_volume_key(struct crypt_device *cd) { char *vk = NULL; size_t vk_size; unsigned i; int r; crypt_set_confirm_callback(cd, yesDialog, NULL); if (!yesDialog( _("Header dump with volume key is sensitive information\n" "which allows access to encrypted partition without passphrase.\n" "This dump should be always stored encrypted on safe place."), NULL)) return -EPERM; vk_size = crypt_get_volume_key_size(cd); vk = crypt_safe_alloc(vk_size); if (!vk) return -ENOMEM; r = crypt_volume_key_get(cd, CRYPT_ANY_SLOT, vk, &vk_size, NULL, 0); if (r < 0) goto out; log_std("TCRYPT header information for %s\n", crypt_get_device_name(cd)); log_std("Cipher chain: \t%s\n", crypt_get_cipher(cd)); log_std("Cipher mode: \t%s\n", crypt_get_cipher_mode(cd)); log_std("Payload offset:\t%d\n", (int)crypt_get_data_offset(cd)); log_std("MK bits: \t%d\n", (int)vk_size * 8); log_std("MK dump:\t"); for(i = 0; i < vk_size; i++) { if (i && !(i % 16)) log_std("\n\t\t"); log_std("%02hhx ", (char)vk[i]); } log_std("\n"); out: crypt_safe_free(vk); return r; } static int action_tcryptDump(void) { struct crypt_device *cd = NULL; struct crypt_params_tcrypt params = { .keyfiles = opt_keyfiles, .keyfiles_count = opt_keyfiles_count, .flags = CRYPT_TCRYPT_LEGACY_MODES, }; int r; if ((r = crypt_init(&cd, action_argv[0]))) goto out; /* TCRYPT header is encrypted, get passphrase now */ r = tools_get_key(_("Enter passphrase: "), CONST_CAST(char**)¶ms.passphrase, ¶ms.passphrase_size, 0, 0, NULL, opt_timeout, _verify_passphrase(0), 0, cd); if (r < 0) goto out; if (opt_hidden) params.flags |= CRYPT_TCRYPT_HIDDEN_HEADER; r = crypt_load(cd, CRYPT_TCRYPT, ¶ms); check_signal(&r); if (r < 0) goto out; if (opt_dump_master_key) r = tcryptDump_with_volume_key(cd); else r = crypt_dump(cd); out: crypt_free(cd); crypt_safe_free(CONST_CAST(char*)params.passphrase); return r; } static int action_close(void) { struct crypt_device *cd = NULL; int r; r = crypt_init_by_name(&cd, action_argv[0]); if (r == 0) r = crypt_deactivate(cd, action_argv[0]); crypt_free(cd); return r; } static int action_resize(void) { struct crypt_device *cd = NULL; int r; r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device); if (r == 0) r = crypt_resize(cd, action_argv[0], opt_size); crypt_free(cd); return r; } static int action_status(void) { crypt_status_info ci; struct crypt_active_device cad; struct crypt_device *cd = NULL; struct stat st; char *backing_file; const char *device; int path = 0, r = 0; /* perhaps a path, not a dm device name */ if (strchr(action_argv[0], '/') && !stat(action_argv[0], &st)) path = 1; ci = crypt_status(NULL, action_argv[0]); switch (ci) { case CRYPT_INVALID: r = -EINVAL; break; case CRYPT_INACTIVE: if (path) log_std("%s is inactive.\n", action_argv[0]); else log_std("%s/%s is inactive.\n", crypt_get_dir(), action_argv[0]); r = -ENODEV; break; case CRYPT_ACTIVE: case CRYPT_BUSY: if (path) log_std("%s is active%s.\n", action_argv[0], ci == CRYPT_BUSY ? " and is in use" : ""); else log_std("%s/%s is active%s.\n", crypt_get_dir(), action_argv[0], ci == CRYPT_BUSY ? " and is in use" : ""); r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device); if (r < 0 || !crypt_get_type(cd)) goto out; log_std(" type: %s\n", crypt_get_type(cd)); r = crypt_get_active_device(cd, action_argv[0], &cad); if (r < 0) goto out; log_std(" cipher: %s-%s\n", crypt_get_cipher(cd), crypt_get_cipher_mode(cd)); log_std(" keysize: %d bits\n", crypt_get_volume_key_size(cd) * 8); device = crypt_get_device_name(cd); log_std(" device: %s\n", device); if (crypt_loop_device(device)) { backing_file = crypt_loop_backing_file(device); log_std(" loop: %s\n", backing_file); free(backing_file); } log_std(" offset: %" PRIu64 " sectors\n", cad.offset); log_std(" size: %" PRIu64 " sectors\n", cad.size); if (cad.iv_offset) log_std(" skipped: %" PRIu64 " sectors\n", cad.iv_offset); log_std(" mode: %s\n", cad.flags & CRYPT_ACTIVATE_READONLY ? "readonly" : "read/write"); if (cad.flags & CRYPT_ACTIVATE_ALLOW_DISCARDS) log_std(" flags: discards\n"); } out: crypt_free(cd); if (r == -ENOTSUP) r = 0; return r; } static int action_benchmark_kdf(const char *hash) { uint64_t kdf_iters; int r; r = crypt_benchmark_kdf(NULL, "pbkdf2", hash, "foo", 3, "bar", 3, &kdf_iters); if (r < 0) log_std("PBKDF2-%-9s N/A\n", hash); else log_std("PBKDF2-%-9s %7" PRIu64 " iterations per second\n", hash, kdf_iters); return r; } static int action_benchmark(void) { static struct { const char *cipher; const char *mode; size_t key_size; size_t iv_size; } bciphers[] = { { "aes", "cbc", 16, 16 }, { "serpent", "cbc", 16, 16 }, { "twofish", "cbc", 16, 16 }, { "aes", "cbc", 32, 16 }, { "serpent", "cbc", 32, 16 }, { "twofish", "cbc", 32, 16 }, { "aes", "xts", 32, 16 }, { "serpent", "xts", 32, 16 }, { "twofish", "xts", 32, 16 }, { "aes", "xts", 64, 16 }, { "serpent", "xts", 64, 16 }, { "twofish", "xts", 64, 16 }, { NULL, NULL, 0, 0 } }; static char *bkdfs[] = { "sha1", "sha256", "sha512", "ripemd160", "whirlpool", NULL }; char cipher[MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN]; double enc_mbr = 0, dec_mbr = 0; int key_size = (opt_key_size ?: DEFAULT_PLAIN_KEYBITS); int iv_size = 16, skipped = 0; int buffer_size = 1024 * 1024; char *c; int i, r; log_std("# Tests are approximate using memory only (no storage IO).\n"); if (opt_hash) { r = action_benchmark_kdf(opt_hash); } else if (opt_cipher) { r = crypt_parse_name_and_mode(opt_cipher, cipher, NULL, cipher_mode); if (r < 0) { log_err(_("No known cipher specification pattern detected.\n")); return r; } if ((c = strchr(cipher_mode, '-'))) *c = '\0'; /* FIXME: not really clever :) */ if (strstr(cipher, "des") || strstr(cipher, "blowfish") || strstr(cipher, "cast5")) iv_size = 8; r = crypt_benchmark(NULL, cipher, cipher_mode, key_size / 8, iv_size, buffer_size, &enc_mbr, &dec_mbr); if (!r) { log_std("# Algorithm | Key | Encryption | Decryption\n"); log_std("%8s-%s %4db %5.1f MiB/s %5.1f MiB/s\n", cipher, cipher_mode, key_size, enc_mbr, dec_mbr); } else if (r == -ENOENT) log_err(_("Cipher %s is not available.\n"), opt_cipher); } else { for (i = 0; bkdfs[i]; i++) { r = action_benchmark_kdf(bkdfs[i]); check_signal(&r); if (r == -EINTR) break; } for (i = 0; bciphers[i].cipher; i++) { r = crypt_benchmark(NULL, bciphers[i].cipher, bciphers[i].mode, bciphers[i].key_size, bciphers[i].iv_size, buffer_size, &enc_mbr, &dec_mbr); check_signal(&r); if (r == -ENOTSUP || r == -EINTR) break; if (r == -ENOENT) skipped++; if (i == 0) log_std("# Algorithm | Key | Encryption | Decryption\n"); snprintf(cipher, MAX_CIPHER_LEN, "%s-%s", bciphers[i].cipher, bciphers[i].mode); if (!r) log_std("%12s %4db %5.1f MiB/s %5.1f MiB/s\n", cipher, bciphers[i].key_size*8, enc_mbr, dec_mbr); else log_std("%12s %4db %12s %12s\n", cipher, bciphers[i].key_size*8, _("N/A"), _("N/A")); } if (skipped && skipped == i) r = -ENOTSUP; } if (r == -ENOTSUP) log_err( _("Required kernel crypto interface not available.\n" "Ensure you have algif_skcipher kernel module loaded.\n")); return r; } static int _read_mk(const char *file, char **key, int keysize) { int fd; *key = crypt_safe_alloc(keysize); if (!*key) return -ENOMEM; fd = open(file, O_RDONLY); if (fd == -1) { log_err("Cannot read keyfile %s.\n", file); goto fail; } if ((read(fd, *key, keysize) != keysize)) { log_err("Cannot read %d bytes from keyfile %s.\n", keysize, file); close(fd); goto fail; } close(fd); return 0; fail: crypt_safe_free(*key); *key = NULL; return -EINVAL; } static int action_luksRepair(void) { struct crypt_device *cd = NULL; int r; if ((r = crypt_init(&cd, action_argv[0]))) goto out; /* Currently only LUKS1 allows repair */ crypt_set_log_callback(cd, quiet_log, NULL); r = crypt_load(cd, CRYPT_LUKS1, NULL); crypt_set_log_callback(cd, tool_log, NULL); if (r == 0) { log_verbose( _("No known problems detected for LUKS header.\n")); goto out; } r = yesDialog(_("Really try to repair LUKS device header?"), NULL) ? 0 : -EINVAL; if (r == 0) r = crypt_repair(cd, CRYPT_LUKS1, NULL); out: crypt_free(cd); return r; } static int action_luksFormat(void) { int r = -EINVAL, keysize; const char *header_device; char *msg = NULL, *key = NULL, cipher [MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN]; char *password = NULL; size_t passwordLen; struct crypt_device *cd = NULL; struct crypt_params_luks1 params = { .hash = opt_hash ?: DEFAULT_LUKS1_HASH, .data_alignment = opt_align_payload, .data_device = opt_header_device ? action_argv[0] : NULL, }; header_device = opt_header_device ?: action_argv[0]; if(asprintf(&msg, _("This will overwrite data on %s irrevocably."), header_device) == -1) { log_err(_("memory allocation error in action_luksFormat")); r = -ENOMEM; goto out; } r = yesDialog(msg, NULL) ? 0 : -EINVAL; free(msg); if (r < 0) goto out; r = crypt_parse_name_and_mode(opt_cipher ?: DEFAULT_CIPHER(LUKS1), cipher, NULL, cipher_mode); if (r < 0) { log_err(_("No known cipher specification pattern detected.\n")); goto out; } if ((r = crypt_init(&cd, header_device))) { if (opt_header_device) log_err(_("Cannot use %s as on-disk header.\n"), header_device); goto out; } keysize = (opt_key_size ?: DEFAULT_LUKS1_KEYBITS) / 8; crypt_set_timeout(cd, opt_timeout); if (opt_iteration_time) crypt_set_iteration_time(cd, opt_iteration_time); if (opt_random) crypt_set_rng_type(cd, CRYPT_RNG_RANDOM); else if (opt_urandom) crypt_set_rng_type(cd, CRYPT_RNG_URANDOM); r = tools_get_key(_("Enter LUKS passphrase: "), &password, &passwordLen, opt_keyfile_offset, opt_keyfile_size, opt_key_file, opt_timeout, _verify_passphrase(1), 1, cd); if (r < 0) goto out; if (opt_master_key_file) { r = _read_mk(opt_master_key_file, &key, keysize); if (r < 0) goto out; } r = crypt_format(cd, CRYPT_LUKS1, cipher, cipher_mode, opt_uuid, key, keysize, ¶ms); check_signal(&r); if (r < 0) goto out; r = crypt_keyslot_add_by_volume_key(cd, opt_key_slot, key, keysize, password, passwordLen); out: crypt_free(cd); crypt_safe_free(key); crypt_safe_free(password); return r; } static int action_open_luks(void) { struct crypt_device *cd = NULL; const char *data_device, *header_device, *activated_name; char *key = NULL; uint32_t flags = 0; int r, keysize; if (opt_header_device) { header_device = uuid_or_device(opt_header_device); data_device = action_argv[0]; } else { header_device = uuid_or_device(action_argv[0]); data_device = NULL; } activated_name = opt_test_passphrase ? NULL : action_argv[1]; if ((r = crypt_init(&cd, header_device))) goto out; if ((r = crypt_load(cd, CRYPT_LUKS1, NULL))) goto out; if (data_device && (r = crypt_set_data_device(cd, data_device))) goto out; if (!data_device && (crypt_get_data_offset(cd) < 8)) { log_err(_("Reduced data offset is allowed only for detached LUKS header.\n")); r = -EINVAL; goto out; } crypt_set_timeout(cd, opt_timeout); crypt_set_password_retry(cd, opt_tries); crypt_set_password_verify(cd, _verify_passphrase(0)); if (opt_iteration_time) crypt_set_iteration_time(cd, opt_iteration_time); if (opt_readonly) flags |= CRYPT_ACTIVATE_READONLY; if (opt_allow_discards) flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS; if (opt_master_key_file) { keysize = crypt_get_volume_key_size(cd); r = _read_mk(opt_master_key_file, &key, keysize); if (r < 0) goto out; r = crypt_activate_by_volume_key(cd, activated_name, key, keysize, flags); } else if (opt_key_file) { crypt_set_password_retry(cd, 1); r = crypt_activate_by_keyfile_offset(cd, activated_name, opt_key_slot, opt_key_file, opt_keyfile_size, opt_keyfile_offset, flags); } else r = crypt_activate_by_passphrase(cd, activated_name, opt_key_slot, NULL, 0, flags); out: crypt_safe_free(key); crypt_free(cd); return r; } static int verify_keyslot(struct crypt_device *cd, int key_slot, char *msg_last, char *msg_pass, const char *key_file, int keyfile_offset, int keyfile_size) { crypt_keyslot_info ki; char *password = NULL; size_t passwordLen; int i, r; ki = crypt_keyslot_status(cd, key_slot); if (ki == CRYPT_SLOT_ACTIVE_LAST && msg_last && !yesDialog(msg_last, NULL)) return -EPERM; r = tools_get_key(msg_pass, &password, &passwordLen, keyfile_offset, keyfile_size, key_file, opt_timeout, _verify_passphrase(0), 0, cd); if(r < 0) goto out; if (ki == CRYPT_SLOT_ACTIVE_LAST) { /* check the last keyslot */ r = crypt_activate_by_passphrase(cd, NULL, key_slot, password, passwordLen, 0); } else { /* try all other keyslots */ for (i = 0; i < crypt_keyslot_max(CRYPT_LUKS1); i++) { if (i == key_slot) continue; ki = crypt_keyslot_status(cd, key_slot); if (ki == CRYPT_SLOT_ACTIVE) r = crypt_activate_by_passphrase(cd, NULL, i, password, passwordLen, 0); if (r == i) break; } } if (r == -EPERM) log_err(_("No key available with this passphrase.\n")); out: crypt_safe_free(password); return r; } static int action_luksKillSlot(void) { struct crypt_device *cd = NULL; int r; if ((r = crypt_init(&cd, uuid_or_device(action_argv[0])))) goto out; crypt_set_confirm_callback(cd, yesDialog, NULL); crypt_set_timeout(cd, opt_timeout); if ((r = crypt_load(cd, CRYPT_LUKS1, NULL))) goto out; switch (crypt_keyslot_status(cd, opt_key_slot)) { case CRYPT_SLOT_ACTIVE_LAST: case CRYPT_SLOT_ACTIVE: log_verbose(_("Key slot %d selected for deletion.\n"), opt_key_slot); break; case CRYPT_SLOT_INACTIVE: log_err(_("Key %d not active. Can't wipe.\n"), opt_key_slot); case CRYPT_SLOT_INVALID: r = -EINVAL; goto out; } if (!opt_batch_mode) { r = verify_keyslot(cd, opt_key_slot, _("This is the last keyslot. Device will become unusable after purging this key."), _("Enter any remaining LUKS passphrase: "), opt_key_file, opt_keyfile_offset, opt_keyfile_size); if (r < 0) goto out; } r = crypt_keyslot_destroy(cd, opt_key_slot); out: crypt_free(cd); return r; } static int action_luksRemoveKey(void) { struct crypt_device *cd = NULL; char *password = NULL; size_t passwordLen; int r; if ((r = crypt_init(&cd, uuid_or_device(action_argv[0])))) goto out; crypt_set_confirm_callback(cd, yesDialog, NULL); crypt_set_timeout(cd, opt_timeout); if ((r = crypt_load(cd, CRYPT_LUKS1, NULL))) goto out; r = tools_get_key(_("Enter LUKS passphrase to be deleted: "), &password, &passwordLen, opt_keyfile_offset, opt_keyfile_size, opt_key_file, opt_timeout, _verify_passphrase(0), 0, cd); if(r < 0) goto out; r = crypt_activate_by_passphrase(cd, NULL, CRYPT_ANY_SLOT, password, passwordLen, 0); check_signal(&r); if (r < 0) goto out; opt_key_slot = r; log_verbose(_("Key slot %d selected for deletion.\n"), opt_key_slot); if (crypt_keyslot_status(cd, opt_key_slot) == CRYPT_SLOT_ACTIVE_LAST && !yesDialog(_("This is the last keyslot. " "Device will become unusable after purging this key."), NULL)) { r = -EPERM; goto out; } r = crypt_keyslot_destroy(cd, opt_key_slot); out: crypt_safe_free(password); crypt_free(cd); return r; } static int action_luksAddKey(void) { int r = -EINVAL, keysize = 0; char *key = NULL; const char *opt_new_key_file = (action_argc > 1 ? action_argv[1] : NULL); char *password = NULL, *password_new = NULL; size_t password_size = 0, password_new_size = 0; struct crypt_device *cd = NULL; if ((r = crypt_init(&cd, uuid_or_device(action_argv[0])))) goto out; crypt_set_confirm_callback(cd, yesDialog, NULL); if ((r = crypt_load(cd, CRYPT_LUKS1, NULL))) goto out; keysize = crypt_get_volume_key_size(cd); /* FIXME: lib cannot properly set verification for new/old passphrase */ crypt_set_password_verify(cd, _verify_passphrase(0)); crypt_set_timeout(cd, opt_timeout); if (opt_iteration_time) crypt_set_iteration_time(cd, opt_iteration_time); if (opt_master_key_file) { r = _read_mk(opt_master_key_file, &key, keysize); if (r < 0) goto out; //FIXME: process keyfile arg r = crypt_keyslot_add_by_volume_key(cd, opt_key_slot, key, keysize, NULL, 0); } else if (opt_key_file || opt_new_key_file) { r = crypt_keyslot_add_by_keyfile_offset(cd, opt_key_slot, opt_key_file, opt_keyfile_size, opt_keyfile_offset, opt_new_key_file, opt_new_keyfile_size, opt_new_keyfile_offset); } else { r = tools_get_key(_("Enter any passphrase: "), &password, &password_size, 0, 0, NULL, opt_timeout, _verify_passphrase(0), 0, cd); if (r < 0) goto out; /* Check password before asking for new one */ r = crypt_activate_by_passphrase(cd, NULL, CRYPT_ANY_SLOT, password, password_size, 0); check_signal(&r); if (r < 0) goto out; r = tools_get_key(_("Enter new passphrase for key slot: "), &password_new, &password_new_size, 0, 0, NULL, opt_timeout, _verify_passphrase(0), 1, cd); if (r < 0) goto out; r = crypt_keyslot_add_by_passphrase(cd, opt_key_slot, password, password_size, password_new, password_new_size); } out: crypt_safe_free(password); crypt_safe_free(password_new); crypt_safe_free(key); crypt_free(cd); return r; } static int action_luksChangeKey(void) { const char *opt_new_key_file = (action_argc > 1 ? action_argv[1] : NULL); struct crypt_device *cd = NULL; char *password = NULL, *password_new = NULL; size_t password_size = 0, password_new_size = 0; int r; if ((r = crypt_init(&cd, uuid_or_device(action_argv[0])))) goto out; if ((r = crypt_load(cd, CRYPT_LUKS1, NULL))) goto out; if (opt_iteration_time) crypt_set_iteration_time(cd, opt_iteration_time); r = tools_get_key(_("Enter LUKS passphrase to be changed: "), &password, &password_size, opt_keyfile_offset, opt_keyfile_size, opt_key_file, opt_timeout, _verify_passphrase(0), 0, cd); if (r < 0) goto out; /* Check password before asking for new one */ r = crypt_activate_by_passphrase(cd, NULL, opt_key_slot, password, password_size, 0); check_signal(&r); if (r < 0) goto out; r = tools_get_key(_("Enter new LUKS passphrase: "), &password_new, &password_new_size, opt_new_keyfile_offset, opt_new_keyfile_size, opt_new_key_file, opt_timeout, _verify_passphrase(0), 1, cd); if (r < 0) goto out; r = crypt_keyslot_change_by_passphrase(cd, opt_key_slot, opt_key_slot, password, password_size, password_new, password_new_size); out: crypt_safe_free(password); crypt_safe_free(password_new); crypt_free(cd); return r; } static int action_isLuks(void) { struct crypt_device *cd = NULL; int r; if ((r = crypt_init(&cd, action_argv[0]))) goto out; crypt_set_log_callback(cd, quiet_log, NULL); r = crypt_load(cd, CRYPT_LUKS1, NULL); out: crypt_free(cd); return r; } static int action_luksUUID(void) { struct crypt_device *cd = NULL; const char *existing_uuid = NULL; int r; if ((r = crypt_init(&cd, action_argv[0]))) goto out; crypt_set_confirm_callback(cd, yesDialog, NULL); if ((r = crypt_load(cd, CRYPT_LUKS1, NULL))) goto out; if (opt_uuid) r = crypt_set_uuid(cd, opt_uuid); else { existing_uuid = crypt_get_uuid(cd); log_std("%s\n", existing_uuid ?: ""); r = existing_uuid ? 0 : 1; } out: crypt_free(cd); return r; } static int luksDump_with_volume_key(struct crypt_device *cd) { char *vk = NULL, *password = NULL; size_t passwordLen = 0; size_t vk_size; unsigned i; int r; crypt_set_confirm_callback(cd, yesDialog, NULL); if (!yesDialog( _("Header dump with volume key is sensitive information\n" "which allows access to encrypted partition without passphrase.\n" "This dump should be always stored encrypted on safe place."), NULL)) return -EPERM; vk_size = crypt_get_volume_key_size(cd); vk = crypt_safe_alloc(vk_size); if (!vk) return -ENOMEM; r = tools_get_key(_("Enter LUKS passphrase: "), &password, &passwordLen, opt_keyfile_offset, opt_keyfile_size, opt_key_file, opt_timeout, 0, 0, cd); if (r < 0) goto out; r = crypt_volume_key_get(cd, CRYPT_ANY_SLOT, vk, &vk_size, password, passwordLen); check_signal(&r); if (r < 0) goto out; log_std("LUKS header information for %s\n", crypt_get_device_name(cd)); log_std("Cipher name: \t%s\n", crypt_get_cipher(cd)); log_std("Cipher mode: \t%s\n", crypt_get_cipher_mode(cd)); log_std("Payload offset:\t%d\n", (int)crypt_get_data_offset(cd)); log_std("UUID: \t%s\n", crypt_get_uuid(cd)); log_std("MK bits: \t%d\n", (int)vk_size * 8); log_std("MK dump:\t"); for(i = 0; i < vk_size; i++) { if (i && !(i % 16)) log_std("\n\t\t"); log_std("%02hhx ", (char)vk[i]); } log_std("\n"); out: crypt_safe_free(password); crypt_safe_free(vk); return r; } static int action_luksDump(void) { struct crypt_device *cd = NULL; int r; if ((r = crypt_init(&cd, uuid_or_device(action_argv[0])))) goto out; if ((r = crypt_load(cd, CRYPT_LUKS1, NULL))) goto out; if (opt_dump_master_key) r = luksDump_with_volume_key(cd); else r = crypt_dump(cd); out: crypt_free(cd); return r; } static int action_luksSuspend(void) { struct crypt_device *cd = NULL; int r; r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device); if (!r) r = crypt_suspend(cd, action_argv[0]); crypt_free(cd); return r; } static int action_luksResume(void) { struct crypt_device *cd = NULL; int r; if ((r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device))) goto out; crypt_set_timeout(cd, opt_timeout); crypt_set_password_retry(cd, opt_tries); crypt_set_password_verify(cd, _verify_passphrase(0)); if (opt_key_file) r = crypt_resume_by_keyfile_offset(cd, action_argv[0], CRYPT_ANY_SLOT, opt_key_file, opt_keyfile_size, opt_keyfile_offset); else r = crypt_resume_by_passphrase(cd, action_argv[0], CRYPT_ANY_SLOT, NULL, 0); out: crypt_free(cd); return r; } static int action_luksBackup(void) { struct crypt_device *cd = NULL; int r; if (!opt_header_backup_file) { log_err(_("Option --header-backup-file is required.\n")); return -EINVAL; } if ((r = crypt_init(&cd, uuid_or_device(action_argv[0])))) goto out; crypt_set_confirm_callback(cd, yesDialog, NULL); r = crypt_header_backup(cd, CRYPT_LUKS1, opt_header_backup_file); out: crypt_free(cd); return r; } static int action_luksRestore(void) { struct crypt_device *cd = NULL; int r = 0; if (!opt_header_backup_file) { log_err(_("Option --header-backup-file is required.\n")); return -EINVAL; } if ((r = crypt_init(&cd, action_argv[0]))) goto out; crypt_set_confirm_callback(cd, yesDialog, NULL); r = crypt_header_restore(cd, CRYPT_LUKS1, opt_header_backup_file); out: crypt_free(cd); return r; } static int action_open(void) { if (!opt_type) return -EINVAL; if (!strcmp(opt_type, "luks") || !strcmp(opt_type, "luks1")) { if (action_argc < 2 && !opt_test_passphrase) goto args; return action_open_luks(); } else if (!strcmp(opt_type, "plain")) { if (action_argc < 2) goto args; return action_open_plain(); } else if (!strcmp(opt_type, "loopaes")) { if (action_argc < 2) goto args; return action_open_loopaes(); } else if (!strcmp(opt_type, "tcrypt")) { if (action_argc < 2 && !opt_test_passphrase) goto args; return action_open_tcrypt(); } log_err(_("Unrecognized metadata device type %s.\n"), opt_type); return -EINVAL; args: log_err(_("Command requires device and mapped name as arguments.\n")); return -EINVAL; } static struct action_type { const char *type; int (*handler)(void); int required_action_argc; int required_memlock; const char *arg_desc; const char *desc; } action_types[] = { { "open", action_open, 1, 1, N_(" [--type ] []"),N_("open device as mapping ") }, { "close", action_close, 1, 1, N_(""), N_("close device (remove mapping)") }, { "resize", action_resize, 1, 1, N_(""), N_("resize active device") }, { "status", action_status, 1, 0, N_(""), N_("show device status") }, { "benchmark", action_benchmark, 0, 0, N_(""), N_("benchmark cipher") }, { "repair", action_luksRepair, 1, 1, N_(""), N_("try to repair on-disk metadata") }, { "luksFormat", action_luksFormat, 1, 1, N_(" []"), N_("formats a LUKS device") }, { "luksAddKey", action_luksAddKey, 1, 1, N_(" []"), N_("add key to LUKS device") }, { "luksRemoveKey",action_luksRemoveKey,1, 1, N_(" []"), N_("removes supplied key or key file from LUKS device") }, { "luksChangeKey",action_luksChangeKey,1, 1, N_(" []"), N_("changes supplied key or key file of LUKS device") }, { "luksKillSlot", action_luksKillSlot, 2, 1, N_(" "), N_("wipes key with number from LUKS device") }, { "luksUUID", action_luksUUID, 1, 0, N_(""), N_("print UUID of LUKS device") }, { "isLuks", action_isLuks, 1, 0, N_(""), N_("tests for LUKS partition header") }, { "luksDump", action_luksDump, 1, 1, N_(""), N_("dump LUKS partition information") }, { "tcryptDump", action_tcryptDump, 1, 1, N_(""), N_("dump TCRYPT device information") }, { "luksSuspend", action_luksSuspend, 1, 1, N_(""), N_("Suspend LUKS device and wipe key (all IOs are frozen).") }, { "luksResume", action_luksResume, 1, 1, N_(""), N_("Resume suspended LUKS device.") }, { "luksHeaderBackup", action_luksBackup,1,1, N_(""), N_("Backup LUKS device header and keyslots") }, { "luksHeaderRestore",action_luksRestore,1,1,N_(""), N_("Restore LUKS device header and keyslots") }, {} }; static void help(poptContext popt_context, enum poptCallbackReason reason __attribute__((unused)), struct poptOption *key, const char *arg __attribute__((unused)), void *data __attribute__((unused))) { if (key->shortName == '?') { struct action_type *action; log_std("%s\n",PACKAGE_STRING); poptPrintHelp(popt_context, stdout, 0); log_std(_("\n" " is one of:\n")); for(action = action_types; action->type; action++) log_std("\t%s %s - %s\n", action->type, _(action->arg_desc), _(action->desc)); log_std(_("\n" "You can also use old syntax aliases:\n" "\topen: create (plainOpen), luksOpen, loopaesOpen, tcryptOpen\n" "\tclose: remove (plainClose), luksClose, loopaesClose, tcryptClose\n")); log_std(_("\n" " is the device to create under %s\n" " is the encrypted device\n" " is the LUKS key slot number to modify\n" " optional key file for the new key for luksAddKey action\n"), crypt_get_dir()); log_std(_("\nDefault compiled-in key and passphrase parameters:\n" "\tMaximum keyfile size: %dkB, " "Maximum interactive passphrase length %d (characters)\n" "Default PBKDF2 iteration time for LUKS: %d (ms)\n"), DEFAULT_KEYFILE_SIZE_MAXKB, DEFAULT_PASSPHRASE_SIZE_MAX, DEFAULT_LUKS1_ITER_TIME); log_std(_("\nDefault compiled-in device cipher parameters:\n" "\tloop-AES: %s, Key %d bits\n" "\tplain: %s, Key: %d bits, Password hashing: %s\n" "\tLUKS1: %s, Key: %d bits, LUKS header hashing: %s, RNG: %s\n"), DEFAULT_LOOPAES_CIPHER, DEFAULT_LOOPAES_KEYBITS, DEFAULT_CIPHER(PLAIN), DEFAULT_PLAIN_KEYBITS, DEFAULT_PLAIN_HASH, DEFAULT_CIPHER(LUKS1), DEFAULT_LUKS1_KEYBITS, DEFAULT_LUKS1_HASH, DEFAULT_RNG); exit(EXIT_SUCCESS); } else usage(popt_context, EXIT_SUCCESS, NULL, NULL); } static void help_args(struct action_type *action, poptContext popt_context) { char buf[128]; snprintf(buf, sizeof(buf), _("%s: requires %s as arguments"), action->type, action->arg_desc); usage(popt_context, EXIT_FAILURE, buf, poptGetInvocationName(popt_context)); } static int run_action(struct action_type *action) { int r; log_dbg("Running command %s.", action->type); if (action->required_memlock) crypt_memory_lock(NULL, 1); set_int_handler(0); r = action->handler(); if (action->required_memlock) crypt_memory_lock(NULL, 0); /* Some functions returns keyslot # */ if (r > 0) r = 0; check_signal(&r); show_status(r); return translate_errno(r); } int main(int argc, const char **argv) { static char *popt_tmp; static struct poptOption popt_help_options[] = { { NULL, '\0', POPT_ARG_CALLBACK, help, 0, NULL, NULL }, { "help", '?', POPT_ARG_NONE, NULL, 0, N_("Show this help message"), NULL }, { "usage", '\0', POPT_ARG_NONE, NULL, 0, N_("Display brief usage"), NULL }, POPT_TABLEEND }; static struct poptOption popt_options[] = { { NULL, '\0', POPT_ARG_INCLUDE_TABLE, popt_help_options, 0, N_("Help options:"), NULL }, { "version", '\0', POPT_ARG_NONE, &opt_version_mode, 0, N_("Print package version"), NULL }, { "verbose", 'v', POPT_ARG_NONE, &opt_verbose, 0, N_("Shows more detailed error messages"), NULL }, { "debug", '\0', POPT_ARG_NONE, &opt_debug, 0, N_("Show debug messages"), NULL }, { "cipher", 'c', POPT_ARG_STRING, &opt_cipher, 0, N_("The cipher used to encrypt the disk (see /proc/crypto)"), NULL }, { "hash", 'h', POPT_ARG_STRING, &opt_hash, 0, N_("The hash used to create the encryption key from the passphrase"), NULL }, { "verify-passphrase", 'y', POPT_ARG_NONE, &opt_verify_passphrase, 0, N_("Verifies the passphrase by asking for it twice"), NULL }, { "key-file", 'd', POPT_ARG_STRING, &opt_key_file, 5, N_("Read the key from a file."), NULL }, { "master-key-file", '\0', POPT_ARG_STRING, &opt_master_key_file, 0, N_("Read the volume (master) key from file."), NULL }, { "dump-master-key", '\0', POPT_ARG_NONE, &opt_dump_master_key, 0, N_("Dump volume (master) key instead of keyslots info."), NULL }, { "key-size", 's', POPT_ARG_INT, &opt_key_size, 0, N_("The size of the encryption key"), N_("BITS") }, { "keyfile-size", 'l', POPT_ARG_LONG, &opt_keyfile_size, 0, N_("Limits the read from keyfile"), N_("bytes") }, { "keyfile-offset", '\0', POPT_ARG_LONG, &opt_keyfile_offset, 0, N_("Number of bytes to skip in keyfile"), N_("bytes") }, { "new-keyfile-size", '\0', POPT_ARG_LONG, &opt_new_keyfile_size, 0, N_("Limits the read from newly added keyfile"), N_("bytes") }, { "new-keyfile-offset",'\0', POPT_ARG_LONG, &opt_new_keyfile_offset, 0, N_("Number of bytes to skip in newly added keyfile"), N_("bytes") }, { "key-slot", 'S', POPT_ARG_INT, &opt_key_slot, 0, N_("Slot number for new key (default is first free)"), NULL }, { "size", 'b', POPT_ARG_STRING, &popt_tmp, 1, N_("The size of the device"), N_("SECTORS") }, { "offset", 'o', POPT_ARG_STRING, &popt_tmp, 2, N_("The start offset in the backend device"), N_("SECTORS") }, { "skip", 'p', POPT_ARG_STRING, &popt_tmp, 3, N_("How many sectors of the encrypted data to skip at the beginning"), N_("SECTORS") }, { "readonly", 'r', POPT_ARG_NONE, &opt_readonly, 0, N_("Create a readonly mapping"), NULL }, { "iter-time", 'i', POPT_ARG_INT, &opt_iteration_time, 0, N_("PBKDF2 iteration time for LUKS (in ms)"), N_("msecs") }, { "batch-mode", 'q', POPT_ARG_NONE, &opt_batch_mode, 0, N_("Do not ask for confirmation"), NULL }, { "timeout", 't', POPT_ARG_INT, &opt_timeout, 0, N_("Timeout for interactive passphrase prompt (in seconds)"), N_("secs") }, { "tries", 'T', POPT_ARG_INT, &opt_tries, 0, N_("How often the input of the passphrase can be retried"), NULL }, { "align-payload", '\0', POPT_ARG_INT, &opt_align_payload, 0, N_("Align payload at sector boundaries - for luksFormat"), N_("SECTORS") }, { "header-backup-file",'\0', POPT_ARG_STRING, &opt_header_backup_file, 0, N_("File with LUKS header and keyslots backup."), NULL }, { "use-random", '\0', POPT_ARG_NONE, &opt_random, 0, N_("Use /dev/random for generating volume key."), NULL }, { "use-urandom", '\0', POPT_ARG_NONE, &opt_urandom, 0, N_("Use /dev/urandom for generating volume key."), NULL }, { "shared", '\0', POPT_ARG_NONE, &opt_shared, 0, N_("Share device with another non-overlapping crypt segment."), NULL }, { "uuid", '\0', POPT_ARG_STRING, &opt_uuid, 0, N_("UUID for device to use."), NULL }, { "allow-discards", '\0', POPT_ARG_NONE, &opt_allow_discards, 0, N_("Allow discards (aka TRIM) requests for device."), NULL }, { "header", '\0', POPT_ARG_STRING, &opt_header_device, 0, N_("Device or file with separated LUKS header."), NULL }, { "test-passphrase", '\0', POPT_ARG_NONE, &opt_test_passphrase, 0, N_("Do not activate device, just check passphrase."), NULL }, { "hidden", '\0', POPT_ARG_NONE, &opt_hidden, 0, N_("Use hidden header (hidden TCRYPT device) ."), NULL }, { "type", 'M', POPT_ARG_STRING, &opt_type, 0, N_("Type of device metadata: luks, plain, loopaes, tcrypt."), NULL }, POPT_TABLEEND }; poptContext popt_context; struct action_type *action; const char *aname; int r; crypt_set_log_callback(NULL, tool_log, NULL); setlocale(LC_ALL, ""); bindtextdomain(PACKAGE, LOCALEDIR); textdomain(PACKAGE); crypt_fips_self_check(NULL); popt_context = poptGetContext(PACKAGE, argc, argv, popt_options, 0); poptSetOtherOptionHelp(popt_context, _("[OPTION...] ")); while((r = poptGetNextOpt(popt_context)) > 0) { unsigned long long ull_value; char *endp; if (r == 5) { if (opt_keyfiles_count < MAX_KEYFILES) opt_keyfiles[opt_keyfiles_count++] = poptGetOptArg(popt_context); continue; } errno = 0; ull_value = strtoull(popt_tmp, &endp, 0); if (*endp || !*popt_tmp || (errno == ERANGE && ull_value == ULLONG_MAX) || (errno != 0 && ull_value == 0)) r = POPT_ERROR_BADNUMBER; switch(r) { case 1: opt_size = ull_value; break; case 2: opt_offset = ull_value; break; case 3: opt_skip = ull_value; opt_skip_valid = 1; break; } if (r < 0) break; } if (r < -1) usage(popt_context, EXIT_FAILURE, poptStrerror(r), poptBadOption(popt_context, POPT_BADOPTION_NOALIAS)); if (opt_version_mode) { log_std("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION); poptFreeContext(popt_context); exit(EXIT_SUCCESS); } if (!(aname = poptGetArg(popt_context))) usage(popt_context, EXIT_FAILURE, _("Argument missing."), poptGetInvocationName(popt_context)); action_argc = 0; action_argv = poptGetArgs(popt_context); /* Make return values of poptGetArgs more consistent in case of remaining argc = 0 */ if(!action_argv) action_argv = null_action_argv; /* Count args, somewhat unnice, change? */ while(action_argv[action_argc] != NULL) action_argc++; /* Handle aliases */ if (!strcmp(aname, "create")) { /* create command had historically switched arguments */ if (action_argv[0] && action_argv[1]) { const char *tmp = action_argv[0]; action_argv[0] = action_argv[1]; action_argv[1] = tmp; } aname = "open"; opt_type = "plain"; } else if (!strcmp(aname, "plainOpen")) { aname = "open"; opt_type = "plain"; } else if (!strcmp(aname, "luksOpen")) { aname = "open"; opt_type = "luks"; } else if (!strcmp(aname, "loopaesOpen")) { aname = "open"; opt_type = "loopaes"; } else if (!strcmp(aname, "tcryptOpen")) { aname = "open"; opt_type = "tcrypt"; } else if (!strcmp(aname, "remove") || !strcmp(aname, "plainClose") || !strcmp(aname, "luksClose") || !strcmp(aname, "loopaesClose") || !strcmp(aname, "tcryptClose")) { aname = "close"; } for(action = action_types; action->type; action++) if (strcmp(action->type, aname) == 0) break; if (!action->type) usage(popt_context, EXIT_FAILURE, _("Unknown action."), poptGetInvocationName(popt_context)); if(action_argc < action->required_action_argc) help_args(action, popt_context); /* FIXME: rewrite this from scratch */ if (opt_shared && (strcmp(aname, "open") || strcmp(opt_type, "plain")) ) usage(popt_context, EXIT_FAILURE, _("Option --shared is allowed only for open of plain device.\n"), poptGetInvocationName(popt_context)); if (opt_allow_discards && strcmp(aname, "open")) usage(popt_context, EXIT_FAILURE, _("Option --allow-discards is allowed only for open operation.\n"), poptGetInvocationName(popt_context)); if (opt_key_size && strcmp(aname, "luksFormat") && strcmp(aname, "open") && strcmp(aname, "benchmark")) usage(popt_context, EXIT_FAILURE, _("Option --key-size is allowed only for luksFormat, open and benchmark.\n" "To limit read from keyfile use --keyfile-size=(bytes)."), poptGetInvocationName(popt_context)); if (opt_test_passphrase && (strcmp(aname, "open") || (strcmp(opt_type, "luks") && strcmp(opt_type, "tcrypt")))) usage(popt_context, EXIT_FAILURE, _("Option --test-passphrase is allowed only for open of LUKS and TCRYPT devices.\n"), poptGetInvocationName(popt_context)); if (opt_key_size % 8) usage(popt_context, EXIT_FAILURE, _("Key size must be a multiple of 8 bits"), poptGetInvocationName(popt_context)); if (!strcmp(aname, "luksKillSlot") && action_argc > 1) opt_key_slot = atoi(action_argv[1]); if (opt_key_slot != CRYPT_ANY_SLOT && (opt_key_slot < 0 || opt_key_slot >= crypt_keyslot_max(CRYPT_LUKS1))) usage(popt_context, EXIT_FAILURE, _("Key slot is invalid."), poptGetInvocationName(popt_context)); if ((!strcmp(aname, "luksRemoveKey") || !strcmp(aname, "luksFormat")) && action_argc > 1) { if (opt_key_file) log_err(_("Option --key-file takes precedence over specified key file argument.\n")); else opt_key_file = action_argv[1]; } if (opt_keyfile_size < 0 || opt_new_keyfile_size < 0 || opt_key_size < 0 || opt_keyfile_offset < 0 || opt_new_keyfile_offset < 0) usage(popt_context, EXIT_FAILURE, _("Negative number for option not permitted."), poptGetInvocationName(popt_context)); if (opt_random && opt_urandom) usage(popt_context, EXIT_FAILURE, _("Only one of --use-[u]random options is allowed."), poptGetInvocationName(popt_context)); if ((opt_random || opt_urandom) && strcmp(aname, "luksFormat")) usage(popt_context, EXIT_FAILURE, _("Option --use-[u]random is allowed only for luksFormat."), poptGetInvocationName(popt_context)); if (opt_uuid && strcmp(aname, "luksFormat") && strcmp(aname, "luksUUID")) usage(popt_context, EXIT_FAILURE, _("Option --uuid is allowed only for luksFormat and luksUUID."), poptGetInvocationName(popt_context)); if (opt_align_payload && strcmp(aname, "luksFormat")) usage(popt_context, EXIT_FAILURE, _("Option --align-payload is allowed only for luksFormat."), poptGetInvocationName(popt_context)); if (opt_skip && (strcmp(aname, "open") || (strcmp(opt_type, "plain") && strcmp(opt_type, "loopaes")))) usage(popt_context, EXIT_FAILURE, _("Option --skip is supported only for open of plain and loopaes devices.\n"), poptGetInvocationName(popt_context)); if (opt_offset && (strcmp(aname, "open") || (strcmp(opt_type, "plain") && strcmp(opt_type, "loopaes")))) usage(popt_context, EXIT_FAILURE, _("Option --offset is supported only for open of plain and loopaes devices.\n"), poptGetInvocationName(popt_context)); if (opt_hidden && strcmp(aname, "tcryptDump") && (strcmp(aname, "open") || strcmp(opt_type, "tcrypt"))) usage(popt_context, EXIT_FAILURE, _("Option --hidden is supported only for TCRYPT device.\n"), poptGetInvocationName(popt_context)); if (opt_debug) { opt_verbose = 1; crypt_set_debug_level(-1); dbg_version_and_cmd(argc, argv); } r = run_action(action); poptFreeContext(popt_context); return r; }