diff options
Diffstat (limited to 'src/cryptsetup.c')
| -rw-r--r-- | src/cryptsetup.c | 4186 |
1 files changed, 4186 insertions, 0 deletions
diff --git a/src/cryptsetup.c b/src/cryptsetup.c new file mode 100644 index 0000000..fcc3571 --- /dev/null +++ b/src/cryptsetup.c @@ -0,0 +1,4186 @@ +/* + * cryptsetup - setup cryptographic volumes for dm-crypt + * + * Copyright (C) 2004 Jana Saout <jana@saout.de> + * Copyright (C) 2004-2007 Clemens Fruhwirth <clemens@endorphin.org> + * Copyright (C) 2009-2021 Red Hat, Inc. All rights reserved. + * Copyright (C) 2009-2021 Milan Broz + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * 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" +#include <uuid/uuid.h> + +static char *opt_cipher = NULL; +static char *opt_keyslot_cipher = NULL; +static char *opt_hash = NULL; +static char *opt_json_file = NULL; +static char *opt_key_file = NULL; +static char *opt_keyfile_stdin = NULL; +static char *opt_keyfiles[MAX_KEYFILES]; +static char *opt_master_key_file = NULL; +static char *opt_header_backup_file = NULL; +static char *opt_uuid = NULL; +static char *opt_header_device = NULL; +static char *opt_type = NULL; +static char *opt_pbkdf = NULL; +static char *opt_priority = NULL; /* normal */ +static char *opt_integrity = NULL; /* none */ +static char *opt_key_description = NULL; +static char *opt_label = NULL; +static char *opt_subsystem = NULL; +static char *opt_active_name = NULL; +static char *opt_resilience_mode = NULL; /* default value "checksum" */ +static char *opt_resilience_hash = NULL; /* default value "sha256" */ + +/* helper strings converted to uint64_t later */ +static char *opt_reduce_size_str = NULL; +static char *opt_hotzone_size_str = NULL; +static char *opt_device_size_str = NULL; +static char *opt_luks2_metadata_size_str = NULL; +static char *opt_luks2_keyslots_size_str = NULL; + +static uint64_t opt_reduce_size = 0; +static uint64_t opt_hotzone_size = 0; +static uint64_t opt_device_size = 0; +static uint64_t opt_luks2_metadata_size = 0; +static uint64_t opt_luks2_keyslots_size = 0; + +static int opt_keyfiles_count = 0; +static int opt_verify_passphrase = 0; +static int opt_key_size = 0; +static int opt_keyslot_key_size = 0; +static long opt_keyfile_size = 0; +static long opt_new_keyfile_size = 0; +static uint64_t opt_keyfile_offset = 0; +static uint64_t opt_new_keyfile_offset = 0; +static int opt_key_slot = CRYPT_ANY_SLOT; +static int opt_token = CRYPT_ANY_TOKEN; +static int opt_token_only = 0; +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_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_perf_same_cpu_crypt = 0; +static int opt_perf_submit_from_crypt_cpus = 0; +static int opt_perf_no_read_workqueue = 0; +static int opt_perf_no_write_workqueue = 0; +static int opt_test_passphrase = 0; +static int opt_tcrypt_hidden = 0; +static int opt_tcrypt_system = 0; +static int opt_tcrypt_backup = 0; +static int opt_veracrypt = 0; +static int opt_veracrypt_pim = -1; +static int opt_veracrypt_query_pim = 0; +static int opt_deferred_remove = 0; +static int opt_serialize_memory_hard_pbkdf = 0; +//FIXME: check uint32 overflow for long type +static long opt_pbkdf_memory = DEFAULT_LUKS2_MEMORY_KB; +static long opt_pbkdf_parallel = DEFAULT_LUKS2_PARALLEL_THREADS; +static long opt_pbkdf_iterations = 0; +static int opt_iteration_time = 0; +static int opt_disable_locks = 0; +static int opt_disable_keyring = 0; +static int opt_integrity_nojournal = 0; +static int opt_integrity_no_wipe = 0; +static int opt_integrity_legacy_padding = 0; +static int opt_sector_size = 0; +static int opt_iv_large_sectors = 0; +static int opt_persistent = 0; +static int opt_unbound = 0; +static int opt_refresh = 0; + +/* LUKS2 reencryption parameters */ +static int opt_encrypt = 0; +static int opt_reencrypt_init_only = 0; +static int opt_reencrypt_resume_only = 0; +static int opt_decrypt = 0; + +/* do not set from command line, use helpers above */ +static int64_t opt_data_shift; +static const char *device_type = "luks"; +static const char *set_pbkdf = NULL; + +static const char **action_argv; +static int action_argc; +static const char *null_action_argv[] = {NULL, NULL}; + +void tools_cleanup(void) +{ + FREE_AND_NULL(opt_cipher); + FREE_AND_NULL(opt_keyslot_cipher); + FREE_AND_NULL(opt_hash); + FREE_AND_NULL(opt_json_file); + FREE_AND_NULL(opt_key_file); + FREE_AND_NULL(opt_keyfile_stdin); + FREE_AND_NULL(opt_master_key_file); + FREE_AND_NULL(opt_header_backup_file); + FREE_AND_NULL(opt_uuid); + FREE_AND_NULL(opt_header_device); + FREE_AND_NULL(opt_type); + FREE_AND_NULL(opt_pbkdf); + FREE_AND_NULL(opt_priority); + FREE_AND_NULL(opt_integrity); + FREE_AND_NULL(opt_key_description); + FREE_AND_NULL(opt_label); + FREE_AND_NULL(opt_subsystem); + FREE_AND_NULL(opt_active_name); + FREE_AND_NULL(opt_resilience_mode); + FREE_AND_NULL(opt_resilience_hash); + FREE_AND_NULL(opt_reduce_size_str); + FREE_AND_NULL(opt_hotzone_size_str); + FREE_AND_NULL(opt_device_size_str); + FREE_AND_NULL(opt_luks2_metadata_size_str); + FREE_AND_NULL(opt_luks2_keyslots_size_str); + + while (opt_keyfiles_count) + free(opt_keyfiles[--opt_keyfiles_count]); +} + +static const char *uuid_or_device_header(const char **data_device) +{ + if (data_device) + *data_device = opt_header_device ? action_argv[0] : NULL; + + return uuid_or_device(opt_header_device ?: action_argv[0]); +} + +static const char *luksType(const char *type) +{ + if (type && !strcmp(type, "luks2")) + return CRYPT_LUKS2; + + if (type && !strcmp(type, "luks1")) + return CRYPT_LUKS1; + + if (type && !strcmp(type, "luks")) + return CRYPT_LUKS; /* NULL */ + + if (type && *type) + return type; + + return CRYPT_LUKS; /* NULL */ +} + +static int _verify_passphrase(int def) +{ + /* Batch mode switch off verify - if not overridden 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.")); + def = 0; + } + + return def; +} + +static void _set_activation_flags(uint32_t *flags) +{ + if (opt_readonly) + *flags |= CRYPT_ACTIVATE_READONLY; + + if (opt_allow_discards) + *flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS; + + if (opt_perf_same_cpu_crypt) + *flags |= CRYPT_ACTIVATE_SAME_CPU_CRYPT; + + if (opt_perf_submit_from_crypt_cpus) + *flags |= CRYPT_ACTIVATE_SUBMIT_FROM_CRYPT_CPUS; + + if (opt_perf_no_read_workqueue) + *flags |= CRYPT_ACTIVATE_NO_READ_WORKQUEUE; + + if (opt_perf_no_write_workqueue) + *flags |= CRYPT_ACTIVATE_NO_WRITE_WORKQUEUE; + + if (opt_integrity_nojournal) + *flags |= CRYPT_ACTIVATE_NO_JOURNAL; + + /* In persistent mode, we use what is set on command line */ + if (opt_persistent) + *flags |= CRYPT_ACTIVATE_IGNORE_PERSISTENT; + + /* Only for LUKS2 but ignored elsewhere */ + if (opt_test_passphrase) + *flags |= CRYPT_ACTIVATE_ALLOW_UNBOUND_KEY; + + if (opt_serialize_memory_hard_pbkdf) + *flags |= CRYPT_ACTIVATE_SERIALIZE_MEMORY_HARD_PBKDF; + + /* Only for plain */ + if (opt_iv_large_sectors) + *flags |= CRYPT_ACTIVATE_IV_LARGE_SECTORS; +} + +static void _set_reencryption_flags(uint32_t *flags) +{ + if (opt_reencrypt_init_only) + *flags |= CRYPT_REENCRYPT_INITIALIZE_ONLY; + + if (opt_reencrypt_resume_only) + *flags |= CRYPT_REENCRYPT_RESUME_ONLY; +} + +static int _set_keyslot_encryption_params(struct crypt_device *cd) +{ + const char *type = crypt_get_type(cd); + + if (!opt_keyslot_key_size && !opt_keyslot_cipher) + return 0; + + if (!type || strcmp(type, CRYPT_LUKS2)) { + log_err(_("Keyslot encryption parameters can be set only for LUKS2 device.")); + return -EINVAL; + } + + return crypt_keyslot_set_encryption(cd, opt_keyslot_cipher, opt_keyslot_key_size / 8); +} + +static int action_open_plain(void) +{ + struct crypt_device *cd = NULL, *cd1 = NULL; + const char *pcipher, *pmode; + char *msg, cipher[MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN]; + struct crypt_active_device cad; + struct crypt_params_plain params = { + .hash = opt_hash ?: DEFAULT_PLAIN_HASH, + .skip = opt_skip, + .offset = opt_offset, + .size = opt_size, + .sector_size = opt_sector_size ?: SECTOR_SIZE + }; + char *password = NULL; + const char *activated_name = NULL; + size_t passwordLen, key_size_max, signatures = 0, + key_size = (opt_key_size ?: DEFAULT_PLAIN_KEYBITS) / 8; + uint32_t activate_flags = 0; + int r; + + 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.")); + goto out; + } + + /* FIXME: temporary hack, no hashing for keyfiles in plain mode */ + if (opt_key_file && !tools_is_stdin(opt_key_file)) { + params.hash = NULL; + if (!opt_batch_mode && opt_hash) + log_std(_("WARNING: The --hash parameter is being ignored " + "in plain mode with keyfile specified.\n")); + } + + if (params.hash && !strcmp(params.hash, "plain")) + params.hash = NULL; + + if (!opt_batch_mode && !params.hash && opt_key_file && !tools_is_stdin(opt_key_file) && opt_keyfile_size) + log_std(_("WARNING: The --keyfile-size option is being ignored, " + "the read size is the same as the encryption key size.\n")); + + if (opt_refresh) { + activated_name = action_argc > 1 ? action_argv[1] : action_argv[0]; + r = crypt_init_by_name_and_header(&cd1, activated_name, NULL); + if (r) + goto out; + r = crypt_get_active_device(cd1, activated_name, &cad); + if (r) + goto out; + + /* copy known parameters from existing device */ + params.skip = crypt_get_iv_offset(cd1); + params.offset = crypt_get_data_offset(cd1); + params.size = cad.size; + params.sector_size = crypt_get_sector_size(cd1); + key_size = crypt_get_volume_key_size(cd1); + + if ((r = crypt_init(&cd, crypt_get_device_name(cd1)))) + goto out; + + activate_flags |= CRYPT_ACTIVATE_REFRESH; + + pcipher = crypt_get_cipher(cd1); + pmode = crypt_get_cipher_mode(cd1); + } else { + activated_name = action_argv[1]; + if ((r = crypt_init(&cd, action_argv[0]))) + goto out; + + /* Skip blkid scan when activating plain device with offset */ + if (!opt_offset) { + /* Print all present signatures in read-only mode */ + r = tools_detect_signatures(action_argv[0], 0, &signatures); + if (r < 0) + goto out; + } + + if (signatures) { + r = asprintf(&msg, _("Detected device signature(s) on %s. Proceeding further may damage existing data."), action_argv[0]); + if (r == -1) { + r = -ENOMEM; + goto out; + } + + r = yesDialog(msg, _("Operation aborted.\n")) ? 0 : -EINVAL; + free(msg); + if (r < 0) + goto out; + } + + pcipher = cipher; + pmode = cipher_mode; + } + + r = crypt_format(cd, CRYPT_PLAIN, + pcipher, pmode, + NULL, NULL, + key_size, + ¶ms); + check_signal(&r); + if (r < 0) + goto out; + + if (opt_shared) + activate_flags |= CRYPT_ACTIVATE_SHARED; + + _set_activation_flags(&activate_flags); + + if (!tools_is_stdin(opt_key_file)) { + /* If no hash, key is read directly, read size is always key_size + * (possible opt_keyfile_size is ignored. + * If hash is specified, opt_keyfile_size is applied. + * The opt_keyfile_offset is applied always. + */ + key_size_max = params.hash ? (size_t)opt_keyfile_size : key_size; + r = crypt_activate_by_keyfile_device_offset(cd, action_argv[1], + CRYPT_ANY_SLOT, opt_key_file, key_size_max, + opt_keyfile_offset, activate_flags); + } else { + key_size_max = (opt_key_file && !params.hash) ? key_size : (size_t)opt_keyfile_size; + r = tools_get_key(NULL, &password, &passwordLen, + opt_keyfile_offset, key_size_max, + opt_key_file, opt_timeout, + _verify_passphrase(0), 0, cd); + if (r < 0) + goto out; + + r = crypt_activate_by_passphrase(cd, activated_name, + CRYPT_ANY_SLOT, password, passwordLen, activate_flags); + } +out: + crypt_free(cd); + crypt_free(cd1); + 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; + const char *activated_name = NULL; + int r; + + if (!opt_key_file) { + log_err(_("Option --key-file is required.")); + return -EINVAL; + } + + if (opt_refresh) { + activated_name = action_argc > 1 ? action_argv[1] : action_argv[0]; + if ((r = crypt_init_by_name(&cd, activated_name))) + goto out; + activate_flags |= CRYPT_ACTIVATE_REFRESH; + } else { + activated_name = action_argv[1]; + 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; + } + + _set_activation_flags(&activate_flags); + + r = crypt_activate_by_keyfile_device_offset(cd, activated_name, CRYPT_ANY_SLOT, + tools_is_stdin(opt_key_file) ? "/dev/stdin" : opt_key_file, opt_keyfile_size, + opt_keyfile_offset, activate_flags); +out: + crypt_free(cd); + + return r; +} + +static int tcrypt_load(struct crypt_device *cd, struct crypt_params_tcrypt *params) +{ + int r, tries = opt_tries, eperm = 0; + + if (opt_keyfile_stdin) + tries = 1; + + do { + /* TCRYPT header is encrypted, get passphrase now */ + r = tools_get_key(NULL, CONST_CAST(char**)¶ms->passphrase, + ¶ms->passphrase_size, 0, 0, opt_keyfile_stdin, opt_timeout, + _verify_passphrase(0), 0, cd); + if (r < 0) + continue; + + if (opt_veracrypt_query_pim) { + char *tmp_pim_nptr = NULL; + char *tmp_pim_end = NULL; + size_t tmp_pim_size = 0; + unsigned long long tmp_pim_ull = 0; + + r = tools_get_key(_("Enter VeraCrypt PIM: "), + &tmp_pim_nptr, + &tmp_pim_size, 0, 0, opt_keyfile_stdin, opt_timeout, + _verify_passphrase(0), 0, cd); + if (r < 0) + continue; + + tmp_pim_ull = strtoull(tmp_pim_nptr, &tmp_pim_end, 10); + if (*tmp_pim_nptr == '\0' || !tmp_pim_end || *tmp_pim_end != '\0') { + log_err(_("Invalid PIM value: parse error.")); + r = -EINVAL; + } else if (tmp_pim_ull == 0) { + log_err(_("Invalid PIM value: 0.")); + r = -EINVAL; + } else if (tmp_pim_ull > UINT32_MAX) { + log_err(_("Invalid PIM value: outside of range.")); + r = -ERANGE; + } + crypt_safe_free(tmp_pim_nptr); + if (r < 0) + continue; + + params->veracrypt_pim = (uint32_t)tmp_pim_ull; + crypt_safe_memzero(&tmp_pim_ull, sizeof(tmp_pim_ull)); + } + + if (opt_tcrypt_hidden) + params->flags |= CRYPT_TCRYPT_HIDDEN_HEADER; + + if (opt_tcrypt_system) + params->flags |= CRYPT_TCRYPT_SYSTEM_HEADER; + + if (opt_tcrypt_backup) + params->flags |= CRYPT_TCRYPT_BACKUP_HEADER; + + r = crypt_load(cd, CRYPT_TCRYPT, params); + + if (r == -EPERM) { + log_err(_("No device header detected with this passphrase.")); + eperm = 1; + } + + if (r < 0) { + crypt_safe_free(CONST_CAST(char*)params->passphrase); + params->passphrase = NULL; + params->passphrase_size = 0; + } + check_signal(&r); + } while ((r == -EPERM || r == -ERANGE) && (--tries > 0)); + + /* Report wrong passphrase if at least one try failed */ + if (eperm && r == -EPIPE) + r = -EPERM; + + return r; +} + +static int action_open_tcrypt(void) +{ + struct crypt_device *cd = NULL; + struct crypt_params_tcrypt params = { + .keyfiles = CONST_CAST(const char **)opt_keyfiles, + .keyfiles_count = opt_keyfiles_count, + .flags = CRYPT_TCRYPT_LEGACY_MODES | + (opt_veracrypt ? CRYPT_TCRYPT_VERA_MODES : 0), + .veracrypt_pim = (opt_veracrypt_pim > 0) ? opt_veracrypt_pim : 0, + }; + const char *activated_name; + uint32_t activate_flags = 0; + int r; + + activated_name = opt_test_passphrase ? NULL : action_argv[1]; + + r = crypt_init_data_device(&cd, opt_header_device ?: action_argv[0], action_argv[0]); + if (r < 0) + goto out; + + r = tcrypt_load(cd, ¶ms); + if (r < 0) + goto out; + + _set_activation_flags(&activate_flags); + + if (activated_name) + r = crypt_activate_by_volume_key(cd, activated_name, NULL, 0, activate_flags); +out: + crypt_free(cd); + crypt_safe_free(CONST_CAST(char*)params.passphrase); + crypt_safe_memzero(¶ms.veracrypt_pim, sizeof(params.veracrypt_pim)); + return r; +} + +static int action_open_bitlk(void) +{ + struct crypt_device *cd = NULL; + const char *activated_name; + uint32_t activate_flags = 0; + int r, tries; + char *password = NULL; + size_t passwordLen; + + activated_name = opt_test_passphrase ? NULL : action_argv[1]; + + if ((r = crypt_init(&cd, action_argv[0]))) + goto out; + + r = crypt_load(cd, CRYPT_BITLK, NULL); + if (r < 0) { + log_err(_("Device %s is not a valid BITLK device."), action_argv[0]); + goto out; + } + _set_activation_flags(&activate_flags); + + tries = (tools_is_stdin(opt_key_file) && isatty(STDIN_FILENO)) ? opt_tries : 1; + do { + r = tools_get_key(NULL, &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, activated_name, CRYPT_ANY_SLOT, + password, passwordLen, activate_flags); + tools_passphrase_msg(r); + check_signal(&r); + crypt_safe_free(password); + password = NULL; + } while ((r == -EPERM || r == -ERANGE) && (--tries > 0)); +out: + crypt_safe_free(password); + crypt_free(cd); + 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 = CONST_CAST(const char **)opt_keyfiles, + .keyfiles_count = opt_keyfiles_count, + .flags = CRYPT_TCRYPT_LEGACY_MODES | + (opt_veracrypt ? CRYPT_TCRYPT_VERA_MODES : 0), + .veracrypt_pim = (opt_veracrypt_pim > 0) ? opt_veracrypt_pim : 0, + }; + int r; + r = crypt_init_data_device(&cd, opt_header_device ?: action_argv[0], action_argv[0]); + if (r < 0) + goto out; + + r = tcrypt_load(cd, ¶ms); + 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_bitlkDump(void) +{ + struct crypt_device *cd = NULL; + int r; + + if ((r = crypt_init(&cd, action_argv[0]))) + goto out; + + r = crypt_load(cd, CRYPT_BITLK, NULL); + if (r < 0) + goto out; + + r = crypt_dump(cd); +out: + crypt_free(cd); + return r; +} + +static int action_close(void) +{ + struct crypt_device *cd = NULL; + crypt_status_info ci; + uint32_t flags = 0; + int r; + + if (opt_deferred_remove) + flags |= CRYPT_DEACTIVATE_DEFERRED; + + r = crypt_init_by_name(&cd, action_argv[0]); + if (r == 0) + r = crypt_deactivate_by_name(cd, action_argv[0], flags); + + if (!r && opt_deferred_remove) { + ci = crypt_status(cd, action_argv[0]); + if (ci == CRYPT_ACTIVE || ci == CRYPT_BUSY) + log_std(_("Device %s is still active and scheduled for deferred removal.\n"), + action_argv[0]); + } + + crypt_free(cd); + return r; +} + +static int action_resize(void) +{ + int r; + size_t passwordLen; + struct crypt_active_device cad; + char *password = NULL; + struct crypt_device *cd = NULL; + + r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device); + if (r) + goto out; + + /* FIXME: LUKS2 may enforce fixed size and it must not be changed */ + r = crypt_get_active_device(cd, action_argv[0], &cad); + if (r) + goto out; + + if (cad.flags & CRYPT_ACTIVATE_KEYRING_KEY) { + if (opt_disable_keyring) { + r = -EINVAL; + log_err(_("Resize of active device requires volume key " + "in keyring but --disable-keyring option is set.")); + goto out; + } + + /* try load VK in kernel keyring using token */ + r = crypt_activate_by_token(cd, NULL, opt_token, NULL, + CRYPT_ACTIVATE_KEYRING_KEY); + tools_keyslot_msg(r, UNLOCKED); + if (r >= 0) + goto resize; + else if (opt_token_only) + goto out; + + r = tools_get_key(NULL, &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, opt_key_slot, + password, passwordLen, + CRYPT_ACTIVATE_KEYRING_KEY); + tools_passphrase_msg(r); + tools_keyslot_msg(r, UNLOCKED); + crypt_safe_free(password); + } +resize: + if (opt_device_size) + opt_size = opt_device_size / SECTOR_SIZE; + + if (r >= 0) + r = crypt_resize(cd, action_argv[0], opt_size); +out: + crypt_free(cd); + return r; +} + +static int action_status(void) +{ + crypt_status_info ci; + crypt_reencrypt_info ri; + struct crypt_active_device cad; + struct crypt_params_integrity ip = {}; + struct crypt_device *cd = NULL; + char *backing_file; + const char *device; + int path = 0, r = 0; + + /* perhaps a path, not a dm device name */ + if (strchr(action_argv[0], '/')) + 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) + goto out; + + log_std(" type: %s\n", crypt_get_type(cd) ?: "n/a"); + + /* Print only CRYPT type devices */ + if (!crypt_get_cipher(cd)) + goto out; + + ri = crypt_reencrypt_status(cd, NULL); + if (ri > CRYPT_REENCRYPT_NONE && ri < CRYPT_REENCRYPT_INVALID) + log_std(" reencryption: in-progress\n"); + + r = crypt_get_active_device(cd, action_argv[0], &cad); + if (r < 0) + goto out; + + r = crypt_get_integrity_info(cd, &ip); + if (r < 0 && r != -ENOTSUP) + 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); + log_std(" key location: %s\n", (cad.flags & CRYPT_ACTIVATE_KEYRING_KEY) ? "keyring" : "dm-crypt"); + if (ip.integrity) + log_std(" integrity: %s\n", ip.integrity); + if (ip.integrity_key_size) + log_std(" integrity keysize: %d bits\n", ip.integrity_key_size * 8); + device = crypt_get_device_name(cd); + log_std(" device: %s\n", device); + if ((backing_file = crypt_loop_backing_file(device))) { + log_std(" loop: %s\n", backing_file); + free(backing_file); + } + log_std(" sector size: %d\n", crypt_get_sector_size(cd)); + 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%s\n", cad.flags & CRYPT_ACTIVATE_READONLY ? + "readonly" : "read/write", + (cad.flags & CRYPT_ACTIVATE_SUSPENDED) ? " (suspended)" : ""); + if (cad.flags & (CRYPT_ACTIVATE_ALLOW_DISCARDS| + CRYPT_ACTIVATE_SAME_CPU_CRYPT| + CRYPT_ACTIVATE_SUBMIT_FROM_CRYPT_CPUS| + CRYPT_ACTIVATE_NO_READ_WORKQUEUE| + CRYPT_ACTIVATE_NO_WRITE_WORKQUEUE)) + log_std(" flags: %s%s%s%s%s\n", + (cad.flags & CRYPT_ACTIVATE_ALLOW_DISCARDS) ? "discards " : "", + (cad.flags & CRYPT_ACTIVATE_SAME_CPU_CRYPT) ? "same_cpu_crypt " : "", + (cad.flags & CRYPT_ACTIVATE_SUBMIT_FROM_CRYPT_CPUS) ? "submit_from_crypt_cpus " : "", + (cad.flags & CRYPT_ACTIVATE_NO_READ_WORKQUEUE) ? "no_read_workqueue " : "", + (cad.flags & CRYPT_ACTIVATE_NO_WRITE_WORKQUEUE) ? "no_write_workqueue" : ""); + } +out: + crypt_free(cd); + if (r == -ENOTSUP) + r = 0; + return r; +} + +static int benchmark_callback(uint32_t time_ms, void *usrptr) +{ + struct crypt_pbkdf_type *pbkdf = usrptr; + int r = 0; + + check_signal(&r); + if (r) + log_err(_("Benchmark interrupted.")); + else + log_dbg("PBKDF benchmark: memory cost = %u, iterations = %u, " + "threads = %u (took %u ms)", pbkdf->max_memory_kb, + pbkdf->iterations, pbkdf->parallel_threads, time_ms); + return r; +} + +static int action_benchmark_kdf(const char *kdf, const char *hash, size_t key_size) +{ + int r; + if (!strcmp(kdf, CRYPT_KDF_PBKDF2)) { + struct crypt_pbkdf_type pbkdf = { + .type = CRYPT_KDF_PBKDF2, + .hash = hash, + .time_ms = 1000, + }; + + r = crypt_benchmark_pbkdf(NULL, &pbkdf, "foo", 3, "bar", 3, key_size, + &benchmark_callback, &pbkdf); + if (r < 0) + log_std(_("PBKDF2-%-9s N/A\n"), hash); + else + log_std(_("PBKDF2-%-9s %7u iterations per second for %zu-bit key\n"), + hash, pbkdf.iterations, key_size * 8); + } else { + struct crypt_pbkdf_type pbkdf = { + .type = kdf, + .time_ms = opt_iteration_time ?: DEFAULT_LUKS2_ITER_TIME, + .max_memory_kb = opt_pbkdf_memory, + .parallel_threads = opt_pbkdf_parallel, + }; + + r = crypt_benchmark_pbkdf(NULL, &pbkdf, "foo", 3, + "0123456789abcdef0123456789abcdef", 32, + key_size, &benchmark_callback, &pbkdf); + if (r < 0) + log_std(_("%-10s N/A\n"), kdf); + else + log_std(_("%-10s %4u iterations, %5u memory, " + "%1u parallel threads (CPUs) for " + "%zu-bit key (requested %u ms time)\n"), kdf, + pbkdf.iterations, pbkdf.max_memory_kb, pbkdf.parallel_threads, + key_size * 8, pbkdf.time_ms); + } + + return r; +} + +static int benchmark_cipher_loop(const char *cipher, const char *cipher_mode, + size_t volume_key_size, + double *encryption_mbs, double *decryption_mbs) +{ + int r, buffer_size = 1024 * 1024; + + do { + r = crypt_benchmark(NULL, cipher, cipher_mode, + volume_key_size, 0, buffer_size, + encryption_mbs, decryption_mbs); + if (r == -ERANGE) { + if (buffer_size < 1024 * 1024 * 65) + buffer_size *= 2; + else { + log_err(_("Result of benchmark is not reliable.")); + r = -ENOENT; + } + } + } while (r == -ERANGE); + + return r; +} + +static int action_benchmark(void) +{ + static struct { + const char *cipher; + const char *mode; + size_t key_size; + } bciphers[] = { + { "aes", "cbc", 16 }, + { "serpent", "cbc", 16 }, + { "twofish", "cbc", 16 }, + { "aes", "cbc", 32 }, + { "serpent", "cbc", 32 }, + { "twofish", "cbc", 32 }, + { "aes", "xts", 32 }, + { "serpent", "xts", 32 }, + { "twofish", "xts", 32 }, + { "aes", "xts", 64 }, + { "serpent", "xts", 64 }, + { "twofish", "xts", 64 }, + { NULL, NULL, 0 } + }; + static struct { + const char *type; + const char *hash; + } bkdfs[] = { + { CRYPT_KDF_PBKDF2, "sha1" }, + { CRYPT_KDF_PBKDF2, "sha256" }, + { CRYPT_KDF_PBKDF2, "sha512" }, + { CRYPT_KDF_PBKDF2, "ripemd160" }, + { CRYPT_KDF_PBKDF2, "whirlpool" }, + { CRYPT_KDF_ARGON2I, NULL }, + { CRYPT_KDF_ARGON2ID, NULL }, + { NULL, 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) / 8; + int skipped = 0, width; + char *c; + int i, r; + + log_std(_("# Tests are approximate using memory only (no storage IO).\n")); + if (set_pbkdf || opt_hash) { + if (!set_pbkdf && opt_hash) + set_pbkdf = CRYPT_KDF_PBKDF2; + r = action_benchmark_kdf(set_pbkdf, opt_hash, key_size); + } 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.")); + return r; + } + if ((c = strchr(cipher_mode, '-'))) + *c = '\0'; + + r = benchmark_cipher_loop(cipher, cipher_mode, key_size, &enc_mbr, &dec_mbr); + if (!r) { + width = strlen(cipher) + strlen(cipher_mode) + 1; + if (width < 11) + width = 11; + /* TRANSLATORS: The string is header of a table and must be exactly (right side) aligned. */ + log_std(_("#%*s Algorithm | Key | Encryption | Decryption\n"), width - 11, ""); + log_std("%*s-%s %9db %10.1f MiB/s %10.1f MiB/s\n", width - (int)strlen(cipher_mode) - 1, + cipher, cipher_mode, key_size*8, enc_mbr, dec_mbr); + } else if (r < 0) + log_err(_("Cipher %s (with %i bits key) is not available."), opt_cipher, key_size * 8); + } else { + for (i = 0; bkdfs[i].type; i++) { + r = action_benchmark_kdf(bkdfs[i].type, bkdfs[i].hash, key_size); + check_signal(&r); + if (r == -EINTR) + break; + } + + for (i = 0; bciphers[i].cipher; i++) { + r = benchmark_cipher_loop(bciphers[i].cipher, bciphers[i].mode, + bciphers[i].key_size, &enc_mbr, &dec_mbr); + check_signal(&r); + if (r == -ENOTSUP || r == -EINTR) + break; + if (r == -ENOENT) + skipped++; + if (i == 0) + /* TRANSLATORS: The string is header of a table and must be exactly (right side) aligned. */ + log_std(_("# Algorithm | Key | Encryption | Decryption\n")); + + if (snprintf(cipher, MAX_CIPHER_LEN, "%s-%s", + bciphers[i].cipher, bciphers[i].mode) < 0) + r = -EINVAL; + + if (!r) + log_std("%15s %9zub %10.1f MiB/s %10.1f MiB/s\n", + cipher, bciphers[i].key_size*8, enc_mbr, dec_mbr); + else + log_std("%15s %9zub %17s %17s\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.")); +#ifdef ENABLE_AF_ALG + log_err( _("Ensure you have algif_skcipher kernel module loaded.")); +#endif + } + return r; +} + +static int set_pbkdf_params(struct crypt_device *cd, const char *dev_type) +{ + const struct crypt_pbkdf_type *pbkdf_default; + struct crypt_pbkdf_type pbkdf = {}; + + pbkdf_default = crypt_get_pbkdf_default(dev_type); + if (!pbkdf_default) + return -EINVAL; + + pbkdf.type = set_pbkdf ?: pbkdf_default->type; + pbkdf.hash = opt_hash ?: pbkdf_default->hash; + pbkdf.time_ms = (uint32_t)opt_iteration_time ?: pbkdf_default->time_ms; + if (strcmp(pbkdf.type, CRYPT_KDF_PBKDF2)) { + pbkdf.max_memory_kb = (uint32_t)opt_pbkdf_memory ?: pbkdf_default->max_memory_kb; + pbkdf.parallel_threads = (uint32_t)opt_pbkdf_parallel ?: pbkdf_default->parallel_threads; + } + + if (opt_pbkdf_iterations) { + pbkdf.iterations = opt_pbkdf_iterations; + pbkdf.time_ms = 0; + pbkdf.flags |= CRYPT_PBKDF_NO_BENCHMARK; + } + + return crypt_set_pbkdf_type(cd, &pbkdf); +} + +static int set_keyslot_params(struct crypt_device *cd, int keyslot) +{ + const char *cipher; + struct crypt_pbkdf_type pbkdf; + size_t key_size; + + cipher = crypt_keyslot_get_encryption(cd, keyslot, &key_size); + if (!cipher) + return -EINVAL; + + if (crypt_is_cipher_null(cipher)) { + log_dbg("Keyslot %d uses cipher_null. Replacing with default encryption in new keyslot.", keyslot); + cipher = DEFAULT_LUKS2_KEYSLOT_CIPHER; + key_size = DEFAULT_LUKS2_KEYSLOT_KEYBITS / 8; + } + + if (crypt_keyslot_set_encryption(cd, cipher, key_size)) + return -EINVAL; + + /* if requested any of those just reinitialize context pbkdf */ + if (set_pbkdf || opt_hash || opt_pbkdf_iterations || opt_iteration_time) + return set_pbkdf_params(cd, CRYPT_LUKS2); + + if (crypt_keyslot_get_pbkdf(cd, keyslot, &pbkdf)) + return -EINVAL; + + pbkdf.flags |= CRYPT_PBKDF_NO_BENCHMARK; + + return crypt_set_pbkdf_type(cd, &pbkdf); +} + +static int reencrypt_metadata_repair(struct crypt_device *cd) +{ + char *password; + size_t passwordLen; + int r; + struct crypt_params_reencrypt params = { + .flags = CRYPT_REENCRYPT_REPAIR_NEEDED + }; + + if (!opt_batch_mode && + !yesDialog(_("Unprotected LUKS2 reencryption metadata detected. " + "Please verify the reencryption operation is desirable (see luksDump output)\n" + "and continue (upgrade metadata) only if you acknowledge the operation as genuine."), + _("Operation aborted.\n"))) + return -EINVAL; + + r = tools_get_key(_("Enter passphrase to protect and uppgrade reencryption metadata: "), + &password, &passwordLen, opt_keyfile_offset, + opt_keyfile_size, opt_key_file, opt_timeout, + _verify_passphrase(0), 0, cd); + if (r < 0) + return r; + + r = crypt_reencrypt_init_by_passphrase(cd, NULL, password, passwordLen, + opt_key_slot, opt_key_slot, NULL, NULL, ¶ms); + tools_passphrase_msg(r); + if (r < 0) + goto out; + + r = crypt_activate_by_passphrase(cd, NULL, opt_key_slot, + password, passwordLen, 0); + tools_passphrase_msg(r); + if (r >= 0) + r = 0; + +out: + crypt_safe_free(password); + return r; +} + +static int luks2_reencrypt_repair(struct crypt_device *cd) +{ + int r; + size_t passwordLen; + const char *msg; + char *password = NULL; + struct crypt_params_reencrypt params = {}; + + crypt_reencrypt_info ri = crypt_reencrypt_status(cd, ¶ms); + + if (params.flags & CRYPT_REENCRYPT_REPAIR_NEEDED) + return reencrypt_metadata_repair(cd); + + switch (ri) { + case CRYPT_REENCRYPT_NONE: + return 0; + case CRYPT_REENCRYPT_CLEAN: + break; + case CRYPT_REENCRYPT_CRASH: + r = yesDialog(_("Really proceed with LUKS2 reencryption recovery?"), + _("Operation aborted.\n")); + if (!r) + return -EINVAL; + break; + default: + return -EINVAL; + } + + if (ri == CRYPT_REENCRYPT_CLEAN) + msg = _("Enter passphrase to verify reencryption metadata digest: "); + else + msg = _("Enter passphrase for reencryption recovery: "); + + r = tools_get_key(msg, &password, &passwordLen, opt_keyfile_offset, + opt_keyfile_size, opt_key_file, opt_timeout, + _verify_passphrase(0), 0, cd); + if (r < 0) + return r; + + r = crypt_activate_by_passphrase(cd, NULL, opt_key_slot, + password, passwordLen, 0); + if (r < 0) + goto out; + + if (ri == CRYPT_REENCRYPT_CLEAN) { + r = 0; + goto out; + } + + r = crypt_reencrypt_init_by_passphrase(cd, NULL, password, passwordLen, + opt_key_slot, opt_key_slot, NULL, NULL, + &(struct crypt_params_reencrypt){ .flags = CRYPT_REENCRYPT_RECOVERY }); + if (r > 0) + r = 0; +out: + crypt_safe_free(password); + + return r; +} + +static int action_luksRepair(void) +{ + struct crypt_device *cd = NULL; + int r; + + if ((r = crypt_init_data_device(&cd, opt_header_device ?: action_argv[0], + action_argv[0]))) + goto out; + + crypt_set_log_callback(cd, quiet_log, NULL); + r = crypt_load(cd, luksType(device_type), NULL); + crypt_set_log_callback(cd, tool_log, NULL); + if (r == 0) { + log_verbose(_("No known problems detected for LUKS header.")); + goto skip_repair; + } + + r = tools_detect_signatures(action_argv[0], 1, NULL); + if (r < 0) + goto out; + + r = yesDialog(_("Really try to repair LUKS device header?"), + _("Operation aborted.\n")) ? 0 : -EINVAL; + if (r == 0) + r = crypt_repair(cd, luksType(device_type), NULL); +skip_repair: + /* Header is ok, check if reencryption metadata needs repair/recovery. */ + if (!r && crypt_get_type(cd) && !strcmp(crypt_get_type(cd), CRYPT_LUKS2)) + r = luks2_reencrypt_repair(cd); +out: + crypt_free(cd); + return r; +} + +static int _wipe_data_device(struct crypt_device *cd) +{ + char tmp_name[64], tmp_path[128], tmp_uuid[40]; + uuid_t tmp_uuid_bin; + int r; + + if (!opt_batch_mode) + log_std(_("Wiping device to initialize integrity checksum.\n" + "You can interrupt this by pressing CTRL+c " + "(rest of not wiped device will contain invalid checksum).\n")); + + /* Activate the device a temporary one */ + uuid_generate(tmp_uuid_bin); + uuid_unparse(tmp_uuid_bin, tmp_uuid); + if (snprintf(tmp_name, sizeof(tmp_name), "temporary-cryptsetup-%s", tmp_uuid) < 0) + return -EINVAL; + if (snprintf(tmp_path, sizeof(tmp_path), "%s/%s", crypt_get_dir(), tmp_name) < 0) + return -EINVAL; + + r = crypt_activate_by_volume_key(cd, tmp_name, NULL, 0, + CRYPT_ACTIVATE_PRIVATE | CRYPT_ACTIVATE_NO_JOURNAL); + if (r < 0) + return r; + + /* Wipe the device */ + set_int_handler(0); + r = crypt_wipe(cd, tmp_path, CRYPT_WIPE_ZERO, 0, 0, DEFAULT_WIPE_BLOCK, + 0, &tools_wipe_progress, NULL); + if (crypt_deactivate(cd, tmp_name)) + log_err(_("Cannot deactivate temporary device %s."), tmp_path); + set_int_block(0); + + return r; +} + +static int strcmp_or_null(const char *str, const char *expected) +{ + return !str ? 0 : strcmp(str, expected); +} + +static int get_adjusted_key_size(const char *cipher_mode, uint32_t default_size_bits, int integrity_keysize) +{ + uint32_t keysize_bits = opt_key_size; + +#ifdef ENABLE_LUKS_ADJUST_XTS_KEYSIZE + if (!opt_key_size && !strncmp(cipher_mode, "xts-", 4)) { + if (default_size_bits == 128) + keysize_bits = 256; + else if (default_size_bits == 256) + keysize_bits = 512; + } +#endif + return (keysize_bits ?: default_size_bits) / 8 + integrity_keysize; +} + +static int _luksFormat(struct crypt_device **r_cd, char **r_password, size_t *r_passwordLen) +{ + int r = -EINVAL, keysize, integrity_keysize = 0, fd, created = 0; + struct stat st; + const char *header_device, *type; + char *msg = NULL, *key = NULL, *password = NULL; + char cipher [MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN], integrity[MAX_CIPHER_LEN]; + size_t passwordLen, signatures; + struct crypt_device *cd = NULL; + struct crypt_params_luks1 params1 = { + .hash = opt_hash ?: DEFAULT_LUKS1_HASH, + .data_alignment = opt_align_payload, + .data_device = opt_header_device ? action_argv[0] : NULL, + }; + struct crypt_params_luks2 params2 = { + .data_alignment = params1.data_alignment, + .data_device = params1.data_device, + .sector_size = opt_sector_size ?: SECTOR_SIZE, + .label = opt_label, + .subsystem = opt_subsystem + }; + void *params; + + type = luksType(device_type); + if (!type) + type = crypt_get_default_type(); + + if (!strcmp(type, CRYPT_LUKS2)) { + params = ¶ms2; + } else if (!strcmp(type, CRYPT_LUKS1)) { + params = ¶ms1; + + if (opt_sector_size > SECTOR_SIZE) { + log_err(_("Unsupported encryption sector size.")); + return -EINVAL; + } + + if (opt_integrity) { + log_err(_("Integrity option can be used only for LUKS2 format.")); + return -EINVAL; + } + + if (opt_luks2_keyslots_size || opt_luks2_metadata_size) { + log_err(_("Unsupported LUKS2 metadata size options.")); + return -EINVAL; + } + } else + return -EINVAL; + + /* Create header file (must contain at least one sector)? */ + if (opt_header_device && stat(opt_header_device, &st) < 0 && errno == ENOENT) { + if (!opt_batch_mode && + !yesDialog(_("Header file does not exist, do you want to create it?"), + _("Operation aborted.\n"))) + return -EPERM; + + log_dbg("Creating header file."); + /* coverity[toctou] */ + fd = open(opt_header_device, O_CREAT|O_EXCL|O_WRONLY, S_IRUSR|S_IWUSR); + if (fd == -1 || posix_fallocate(fd, 0, 4096)) + log_err(_("Cannot create header file %s."), opt_header_device); + else { + r = 0; + created = 1; + } + if (fd != -1) + close(fd); + if (r < 0) + return r; + } + + header_device = opt_header_device ?: action_argv[0]; + + 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.")); + goto out; + } + + if (opt_integrity) { + r = crypt_parse_integrity_mode(opt_integrity, integrity, &integrity_keysize); + if (r < 0) { + log_err(_("No known integrity specification pattern detected.")); + goto out; + } + params2.integrity = integrity; + /* FIXME: we use default integrity_params (set to NULL) */ + } + + /* Never call pwquality if using null cipher */ + if (crypt_is_cipher_null(cipher)) + opt_force_password = 1; + + if ((r = crypt_init(&cd, header_device))) { + if (opt_header_device) + log_err(_("Cannot use %s as on-disk header."), header_device); + return r; + } + + if (opt_luks2_keyslots_size || opt_luks2_metadata_size) { + r = crypt_set_metadata_size(cd, opt_luks2_metadata_size, opt_luks2_keyslots_size); + if (r < 0) { + log_err(_("Unsupported LUKS2 metadata size options.")); + goto out; + } + } + + if (opt_offset) { + r = crypt_set_data_offset(cd, opt_offset); + if (r < 0) + goto out; + } + + /* Print all present signatures in read-only mode */ + r = tools_detect_signatures(header_device, 0, &signatures); + if (r < 0) + goto out; + + if (!created) { + r = asprintf(&msg, _("This will overwrite data on %s irrevocably."), header_device); + if (r == -1) { + r = -ENOMEM; + goto out; + } + + r = yesDialog(msg, _("Operation aborted.\n")) ? 0 : -EINVAL; + free(msg); + if (r < 0) + goto out; + } + + keysize = get_adjusted_key_size(cipher_mode, DEFAULT_LUKS1_KEYBITS, integrity_keysize); + + 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(NULL, &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 = tools_read_mk(opt_master_key_file, &key, keysize); + if (r < 0) + goto out; + } + + r = set_pbkdf_params(cd, type); + if (r) { + log_err(_("Failed to set pbkdf parameters.")); + goto out; + } + + /* Signature candidates found */ + if (signatures && ((r = tools_wipe_all_signatures(header_device)) < 0)) + goto out; + + if (opt_integrity_legacy_padding) + crypt_set_compatibility(cd, CRYPT_COMPAT_LEGACY_INTEGRITY_PADDING); + + r = crypt_format(cd, type, cipher, cipher_mode, + opt_uuid, key, keysize, params); + check_signal(&r); + if (r < 0) + goto out; + + r = _set_keyslot_encryption_params(cd); + if (r < 0) + goto out; + + r = crypt_keyslot_add_by_volume_key(cd, opt_key_slot, + key, keysize, + password, passwordLen); + if (r < 0) { + (void) tools_wipe_all_signatures(header_device); + goto out; + } + tools_keyslot_msg(r, CREATED); + + if (opt_integrity && !opt_integrity_no_wipe && + strcmp_or_null(params2.integrity, "none")) + r = _wipe_data_device(cd); +out: + if (r >= 0 && r_cd && r_password && r_passwordLen) { + *r_cd = cd; + *r_password = password; + *r_passwordLen = passwordLen; + } else { + crypt_free(cd); + crypt_safe_free(password); + } + + crypt_safe_free(key); + + return r; +} + +static int action_luksFormat(void) +{ + return _luksFormat(NULL, NULL, NULL); +} + +static int action_open_luks(void) +{ + struct crypt_active_device cad; + struct crypt_device *cd = NULL; + const char *data_device, *header_device, *activated_name; + char *key = NULL; + uint32_t activate_flags = 0; + int r, keysize, tries; + char *password = NULL; + size_t passwordLen; + + if (opt_refresh) { + activated_name = action_argc > 1 ? action_argv[1] : action_argv[0]; + r = crypt_init_by_name_and_header(&cd, activated_name, opt_header_device); + if (r) + goto out; + activate_flags |= CRYPT_ACTIVATE_REFRESH; + } else { + header_device = uuid_or_device_header(&data_device); + + activated_name = opt_test_passphrase ? NULL : action_argv[1]; + + if ((r = crypt_init_data_device(&cd, header_device, data_device))) + goto out; + + if ((r = crypt_load(cd, luksType(device_type), NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + header_device); + goto out; + } + + if (!data_device && (crypt_get_data_offset(cd) < 8) && !opt_test_passphrase) { + log_err(_("Reduced data offset is allowed only for detached LUKS header.")); + r = -EINVAL; + goto out; + } + } + + _set_activation_flags(&activate_flags); + + if (opt_master_key_file) { + keysize = crypt_get_volume_key_size(cd); + if (!keysize && !opt_key_size) { + log_err(_("Cannot determine volume key size for LUKS without keyslots, please use --key-size option.")); + r = -EINVAL; + goto out; + } else if (!keysize) + keysize = opt_key_size / 8; + + r = tools_read_mk(opt_master_key_file, &key, keysize); + if (r < 0) + goto out; + r = crypt_activate_by_volume_key(cd, activated_name, + key, keysize, activate_flags); + } else { + r = crypt_activate_by_token(cd, activated_name, opt_token, NULL, activate_flags); + tools_keyslot_msg(r, UNLOCKED); + if (r >= 0 || opt_token_only) + goto out; + + tries = (tools_is_stdin(opt_key_file) && isatty(STDIN_FILENO)) ? opt_tries : 1; + do { + r = tools_get_key(NULL, &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, activated_name, + opt_key_slot, password, passwordLen, activate_flags); + tools_keyslot_msg(r, UNLOCKED); + tools_passphrase_msg(r); + check_signal(&r); + crypt_safe_free(password); + password = NULL; + } while ((r == -EPERM || r == -ERANGE) && (--tries > 0)); + } +out: + if (r >= 0 && opt_persistent && + (crypt_get_active_device(cd, activated_name, &cad) || + crypt_persistent_flags_set(cd, CRYPT_FLAGS_ACTIVATION, cad.flags & activate_flags))) + log_err(_("Device activated but cannot make flags persistent.")); + + crypt_safe_free(key); + crypt_safe_free(password); + crypt_free(cd); + return r; +} + +static int verify_keyslot(struct crypt_device *cd, int key_slot, crypt_keyslot_info ki, + char *msg_last, char *msg_pass, char *msg_fail, + const char *key_file, uint64_t keyfile_offset, + int keyfile_size) +{ + char *password = NULL; + size_t passwordLen; + int i, max, r; + + if (ki == CRYPT_SLOT_ACTIVE_LAST && !opt_batch_mode && !key_file && + msg_last && !yesDialog(msg_last, msg_fail)) + 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 */ + r = crypt_keyslot_max(crypt_get_type(cd)); + if (r < 0) + goto out; + max = r; + + for (i = 0; i < max ; i++) { + if (i == key_slot) + continue; + ki = crypt_keyslot_status(cd, i); + if (ki == CRYPT_SLOT_ACTIVE || ki == CRYPT_SLOT_ACTIVE_LAST) + r = crypt_activate_by_passphrase(cd, NULL, i, + password, passwordLen, 0); + if (r == i) + break; + } + } + + /* Handle inactive keyslots the same as bad password here */ + if (r == -ENOENT) + r = -EPERM; + tools_passphrase_msg(r); +out: + crypt_safe_free(password); + return r; +} + +static int action_luksKillSlot(void) +{ + struct crypt_device *cd = NULL; + crypt_keyslot_info ki; + int r; + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + goto out; + + crypt_set_confirm_callback(cd, yesDialog, NULL); + + if ((r = crypt_load(cd, luksType(device_type), NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device_header(NULL)); + goto out; + } + + ki = crypt_keyslot_status(cd, opt_key_slot); + switch (ki) { + case CRYPT_SLOT_ACTIVE_LAST: + case CRYPT_SLOT_ACTIVE: + case CRYPT_SLOT_UNBOUND: + log_verbose(_("Keyslot %d is selected for deletion."), opt_key_slot); + break; + case CRYPT_SLOT_INACTIVE: + log_err(_("Keyslot %d is not active."), opt_key_slot); + /* fall through */ + case CRYPT_SLOT_INVALID: + r = -EINVAL; + goto out; + } + + if (!opt_batch_mode || opt_key_file || !isatty(STDIN_FILENO)) { + r = verify_keyslot(cd, opt_key_slot, ki, + _("This is the last keyslot. Device will become unusable after purging this key."), + _("Enter any remaining passphrase: "), + _("Operation aborted, the keyslot was NOT wiped.\n"), + opt_key_file, opt_keyfile_offset, opt_keyfile_size); + tools_keyslot_msg(r, UNLOCKED); + + if (r == -EPIPE && (!opt_key_file || tools_is_stdin(opt_key_file))) { + log_dbg("Failed read from input, ignoring passphrase."); + r = 0; + } + + if (r < 0) + goto out; + } + + r = crypt_keyslot_destroy(cd, opt_key_slot); + tools_keyslot_msg(opt_key_slot, REMOVED); +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_header(NULL)))) + goto out; + + crypt_set_confirm_callback(cd, yesDialog, NULL); + + if ((r = crypt_load(cd, luksType(device_type), NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device_header(NULL)); + goto out; + } + + r = tools_get_key(_("Enter 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); + tools_passphrase_msg(r); + check_signal(&r); + if (r < 0) + goto out; + tools_keyslot_msg(r, UNLOCKED); + + opt_key_slot = r; + log_verbose(_("Keyslot %d is selected for deletion."), 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."), + _("Operation aborted, the keyslot was NOT wiped.\n"))) { + r = -EPERM; + goto out; + } + + r = crypt_keyslot_destroy(cd, opt_key_slot); + tools_keyslot_msg(opt_key_slot, REMOVED); +out: + crypt_safe_free(password); + crypt_free(cd); + return r; +} + +static int luksAddUnboundKey(void) +{ + int r = -EINVAL, keysize = 0; + char *key = NULL; + const char *opt_new_key_file = (action_argc > 1 ? action_argv[1] : NULL); + char *password_new = NULL; + size_t password_new_size = 0; + struct crypt_device *cd = NULL; + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + goto out; + + crypt_set_confirm_callback(cd, yesDialog, NULL); + + if ((r = crypt_load(cd, CRYPT_LUKS2, NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device_header(NULL)); + goto out; + } + + r = _set_keyslot_encryption_params(cd); + if (r < 0) + goto out; + + /* Never call pwquality if using null cipher */ + if (crypt_is_cipher_null(crypt_get_cipher(cd))) + opt_force_password = 1; + + keysize = opt_key_size / 8; + r = set_pbkdf_params(cd, crypt_get_type(cd)); + if (r) { + log_err(_("Failed to set pbkdf parameters.")); + goto out; + } + + if (opt_master_key_file) { + r = tools_read_mk(opt_master_key_file, &key, keysize); + if (r < 0) + goto out; + + check_signal(&r); + if (r < 0) + goto out; + } + + r = tools_get_key(_("Enter new passphrase for key slot: "), + &password_new, &password_new_size, + opt_new_keyfile_offset, opt_new_keyfile_size, + opt_new_key_file, opt_timeout, + _verify_passphrase(1), 1, cd); + if (r < 0) + goto out; + + r = crypt_keyslot_add_by_key(cd, opt_key_slot, key, keysize, + password_new, password_new_size, CRYPT_VOLUME_KEY_NO_SEGMENT); + tools_keyslot_msg(r, CREATED); +out: + crypt_safe_free(password_new); + crypt_safe_free(key); + 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; + + /* Unbound keyslot (no assigned data segment) is special case */ + if (opt_unbound) + return luksAddUnboundKey(); + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + goto out; + + crypt_set_confirm_callback(cd, yesDialog, NULL); + + if ((r = crypt_load(cd, luksType(device_type), NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device_header(NULL)); + goto out; + } + + r = _set_keyslot_encryption_params(cd); + if (r < 0) + goto out; + + /* Never call pwquality if using null cipher */ + if (crypt_is_cipher_null(crypt_get_cipher(cd))) + opt_force_password = 1; + + keysize = crypt_get_volume_key_size(cd); + r = set_pbkdf_params(cd, crypt_get_type(cd)); + if (r) { + log_err(_("Failed to set pbkdf parameters.")); + goto out; + } + + if (opt_master_key_file) { + if (!keysize && !opt_key_size) { + log_err(_("Cannot determine volume key size for LUKS without keyslots, please use --key-size option.")); + r = -EINVAL; + goto out; + } else if (!keysize) + keysize = opt_key_size / 8; + + r = tools_read_mk(opt_master_key_file, &key, keysize); + if (r < 0) + goto out; + + r = crypt_volume_key_verify(cd, key, keysize); + check_signal(&r); + if (r < 0) + goto out; + + r = tools_get_key(_("Enter new passphrase for key slot: "), + &password_new, &password_new_size, + opt_new_keyfile_offset, opt_new_keyfile_size, + opt_new_key_file, opt_timeout, + _verify_passphrase(1), 1, cd); + if (r < 0) + goto out; + + r = crypt_keyslot_add_by_volume_key(cd, opt_key_slot, key, keysize, + password_new, password_new_size); + } else if (opt_key_file && !tools_is_stdin(opt_key_file) && + opt_new_key_file && !tools_is_stdin(opt_new_key_file)) { + r = crypt_keyslot_add_by_keyfile_device_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); + tools_passphrase_msg(r); + } else { + r = tools_get_key(_("Enter any existing passphrase: "), + &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, CRYPT_ANY_SLOT, + password, password_size, 0); + check_signal(&r); + tools_passphrase_msg(r); + if (r < 0) + goto out; + tools_keyslot_msg(r, UNLOCKED); + + r = tools_get_key(_("Enter new passphrase for key slot: "), + &password_new, &password_new_size, + opt_new_keyfile_offset, opt_new_keyfile_size, opt_new_key_file, + opt_timeout, _verify_passphrase(1), 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: + tools_keyslot_msg(r, CREATED); + 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_header(NULL)))) + goto out; + + if ((r = crypt_load(cd, luksType(device_type), NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device_header(NULL)); + goto out; + } + + r = _set_keyslot_encryption_params(cd); + if (r < 0) + goto out; + + /* Never call pwquality if using null cipher */ + if (crypt_is_cipher_null(crypt_get_cipher(cd))) + opt_force_password = 1; + + r = set_pbkdf_params(cd, crypt_get_type(cd)); + if (r) { + log_err(_("Failed to set pbkdf parameters.")); + goto out; + } + + r = tools_get_key(_("Enter 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, CRYPT_ACTIVATE_ALLOW_UNBOUND_KEY); + tools_passphrase_msg(r); + check_signal(&r); + if (r < 0) + goto out; + tools_keyslot_msg(r, UNLOCKED); + + r = tools_get_key(_("Enter new passphrase: "), + &password_new, &password_new_size, + opt_new_keyfile_offset, opt_new_keyfile_size, + opt_new_key_file, + opt_timeout, _verify_passphrase(1), 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); + tools_keyslot_msg(r, CREATED); +out: + crypt_safe_free(password); + crypt_safe_free(password_new); + crypt_free(cd); + return r; +} + +static int action_luksConvertKey(void) +{ + struct crypt_device *cd = NULL; + char *password = NULL; + size_t password_size = 0; + int r; + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + goto out; + + if ((r = crypt_load(cd, CRYPT_LUKS2, NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device_header(NULL)); + goto out; + } + + r = _set_keyslot_encryption_params(cd); + if (r < 0) + goto out; + + if (crypt_keyslot_status(cd, opt_key_slot) == CRYPT_SLOT_INACTIVE) { + r = -EINVAL; + log_err(_("Keyslot %d is not active."), opt_key_slot); + goto out; + } + + r = set_pbkdf_params(cd, crypt_get_type(cd)); + if (r) { + log_err(_("Failed to set pbkdf parameters.")); + goto out; + } + + r = tools_get_key(_("Enter passphrase for keyslot to be converted: "), + &password, &password_size, + opt_keyfile_offset, opt_keyfile_size, opt_key_file, + opt_timeout, _verify_passphrase(0), 0, cd); + if (r < 0) + goto out; + + r = crypt_keyslot_change_by_passphrase(cd, opt_key_slot, opt_key_slot, + password, password_size, password, password_size); + tools_passphrase_msg(r); + tools_keyslot_msg(r, CREATED); +out: + crypt_safe_free(password); + crypt_free(cd); + return r; +} + +static int action_isLuks(void) +{ + struct crypt_device *cd = NULL; + int r; + + /* FIXME: argc > max should be checked for other operations as well */ + if (action_argc > 1) { + log_err(_("Only one device argument for isLuks operation is supported.")); + return -ENODEV; + } + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + goto out; + + crypt_set_log_callback(cd, quiet_log, NULL); + r = crypt_load(cd, luksType(device_type), 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, uuid_or_device_header(NULL)))) + goto out; + + crypt_set_confirm_callback(cd, yesDialog, _("Operation aborted.\n")); + + if ((r = crypt_load(cd, luksType(device_type), 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( + _("The header dump with volume key is sensitive information\n" + "that allows access to encrypted partition without a passphrase.\n" + "This dump should be stored encrypted in a 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(NULL, &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); + tools_passphrase_msg(r); + check_signal(&r); + if (r < 0) + goto out; + tools_keyslot_msg(r, UNLOCKED); + + if (opt_master_key_file) { + r = tools_write_mk(opt_master_key_file, vk, vk_size); + 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); + if (opt_master_key_file) { + log_std("Key stored to file %s.\n", opt_master_key_file); + goto out; + } + 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 luksDump_with_unbound_key(struct crypt_device *cd) +{ + crypt_keyslot_info ki; + char *uk = NULL, *password = NULL; + size_t uk_size, passwordLen = 0; + int i, r; + + ki = crypt_keyslot_status(cd, opt_key_slot); + if (ki != CRYPT_SLOT_UNBOUND) { + log_err(_("Keyslot %d does not contain unbound key."), opt_key_slot); + return -EINVAL; + } + + crypt_set_confirm_callback(cd, yesDialog, NULL); + if (!yesDialog( + _("The header dump with unbound key is sensitive information.\n" + "This dump should be stored encrypted in a safe place."), + NULL)) + return -EPERM; + + r = crypt_keyslot_get_key_size(cd, opt_key_slot); + if (r < 0) + return -EINVAL; + uk_size = r; + uk = crypt_safe_alloc(uk_size); + if (!uk) + return -ENOMEM; + + r = tools_get_key(NULL, &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, opt_key_slot, uk, &uk_size, + password, passwordLen); + tools_passphrase_msg(r); + check_signal(&r); + if (r < 0) + goto out; + tools_keyslot_msg(r, UNLOCKED); + + if (opt_master_key_file) { + r = tools_write_mk(opt_master_key_file, uk, uk_size); + if (r < 0) + goto out; + } + + log_std("LUKS header information for %s\n", crypt_get_device_name(cd)); + log_std("UUID: \t%s\n", crypt_get_uuid(cd)); + log_std("Keyslot: \t%d\n", opt_key_slot); + log_std("Key bits:\t%d\n", (int)uk_size * 8); + if (opt_master_key_file) { + log_std("Key stored to file %s.\n", opt_master_key_file); + goto out; + } + log_std("Unbound Key:\t"); + + for(i = 0; i < (int)uk_size; i++) { + if (i && !(i % 16)) + log_std("\n\t\t"); + log_std("%02hhx ", (char)uk[i]); + } + log_std("\n"); +out: + crypt_safe_free(password); + crypt_safe_free(uk); + return r; +} + +static int action_luksDump(void) +{ + struct crypt_device *cd = NULL; + int r; + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + goto out; + + if ((r = crypt_load(cd, luksType(device_type), NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device_header(NULL)); + goto out; + } + + if (opt_dump_master_key) + r = luksDump_with_volume_key(cd); + else if (opt_unbound) + r = luksDump_with_unbound_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], uuid_or_device(opt_header_device)); + if (!r) { + r = crypt_suspend(cd, action_argv[0]); + if (r == -ENODEV) + log_err(_("%s is not active %s device name."), action_argv[0], "LUKS"); + } + + crypt_free(cd); + return r; +} + +static int action_luksResume(void) +{ + struct crypt_device *cd = NULL; + char *password = NULL; + size_t passwordLen; + int r, tries; + const char *type, *req_type = luksType(device_type); + + if (req_type && strcmp(req_type, CRYPT_LUKS1) && strcmp(req_type, CRYPT_LUKS2)) + return -EINVAL; + + if ((r = crypt_init_by_name_and_header(&cd, action_argv[0], uuid_or_device(opt_header_device)))) + return r; + + r = -EINVAL; + type = crypt_get_type(cd); + if (!type || (strcmp(type, CRYPT_LUKS1) && strcmp(type, CRYPT_LUKS2))) { + log_err(_("%s is not active LUKS device name or header is missing."), action_argv[0]); + goto out; + } + + if (req_type && strcmp(req_type, crypt_get_type(cd))) { + log_err(_("%s is not active %s device name."), action_argv[0], req_type); + goto out; + } + + tries = (tools_is_stdin(opt_key_file) && isatty(STDIN_FILENO)) ? opt_tries : 1; + do { + r = tools_get_key(NULL, &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_resume_by_passphrase(cd, action_argv[0], CRYPT_ANY_SLOT, + password, passwordLen); + tools_passphrase_msg(r); + check_signal(&r); + tools_keyslot_msg(r, UNLOCKED); + + crypt_safe_free(password); + password = NULL; + } while ((r == -EPERM || r == -ERANGE) && (--tries > 0)); +out: + crypt_safe_free(password); + 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.")); + return -EINVAL; + } + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + goto out; + + crypt_set_confirm_callback(cd, yesDialog, NULL); + + r = crypt_header_backup(cd, NULL, 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.")); + return -EINVAL; + } + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + goto out; + + crypt_set_confirm_callback(cd, yesDialog, NULL); + r = crypt_header_restore(cd, NULL, opt_header_backup_file); +out: + crypt_free(cd); + return r; +} + +static const char *_get_device_type(void) +{ + const char *type, *name = NULL; + struct crypt_device *cd = NULL; + + if (action_argc > 1) + name = action_argv[1]; + else if (action_argc == 1) + name = action_argv[0]; + + if (crypt_init_by_name_and_header(&cd, name, opt_header_device)) + return NULL; + + type = crypt_get_type(cd); + if (!type) { + crypt_free(cd); + log_err(_("%s is not cryptsetup managed device."), name); + return NULL; + } + + if (!strncmp(type, "LUKS", 4)) + type = "luks"; + else if (!strcmp(type, CRYPT_PLAIN)) + type = "plain"; + else if (!strcmp(type, CRYPT_LOOPAES)) + type = "loopaes"; + else { + log_err(_("Refresh is not supported for device type %s"), type); + type = NULL; + } + + crypt_free(cd); + + return type; +} + +static int action_open(void) +{ + if (opt_refresh && !device_type) + /* read device type from active mapping */ + device_type = _get_device_type(); + + if (!device_type) + return -EINVAL; + + if (!strcmp(device_type, "luks") || + !strcmp(device_type, "luks1") || + !strcmp(device_type, "luks2")) { + if (action_argc < 2 && (!opt_test_passphrase && !opt_refresh)) + goto args; + return action_open_luks(); + } else if (!strcmp(device_type, "plain")) { + if (action_argc < 2 && !opt_refresh) + goto args; + return action_open_plain(); + } else if (!strcmp(device_type, "loopaes")) { + if (action_argc < 2 && !opt_refresh) + goto args; + return action_open_loopaes(); + } else if (!strcmp(device_type, "tcrypt")) { + if (action_argc < 2 && !opt_test_passphrase) + goto args; + return action_open_tcrypt(); + } else if (!strcmp(device_type, "bitlk")) { + if (action_argc < 2 && !opt_test_passphrase) + goto args; + return action_open_bitlk(); + } + + log_err(_("Unrecognized metadata device type %s."), device_type); + return -EINVAL; +args: + log_err(_("Command requires device and mapped name as arguments.")); + return -EINVAL; +} + +static int action_luksErase(void) +{ + struct crypt_device *cd = NULL; + crypt_keyslot_info ki; + char *msg = NULL; + int i, max, r; + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + goto out; + + crypt_set_confirm_callback(cd, yesDialog, NULL); + + if ((r = crypt_load(cd, luksType(device_type), NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device_header(NULL)); + goto out; + } + + if(asprintf(&msg, _("This operation will erase all keyslots on device %s.\n" + "Device will become unusable after this operation."), + uuid_or_device_header(NULL)) == -1) { + r = -ENOMEM; + goto out; + } + + if (!yesDialog(msg, _("Operation aborted, keyslots were NOT wiped.\n"))) { + r = -EPERM; + goto out; + } + + /* Safety check */ + max = crypt_keyslot_max(crypt_get_type(cd)); + if (max <= 0) { + r = -EINVAL; + goto out; + } + + for (i = 0; i < max; i++) { + ki = crypt_keyslot_status(cd, i); + if (ki == CRYPT_SLOT_ACTIVE || ki == CRYPT_SLOT_ACTIVE_LAST) { + r = crypt_keyslot_destroy(cd, i); + if (r < 0) + goto out; + tools_keyslot_msg(i, REMOVED); + } + } +out: + free(msg); + crypt_free(cd); + return r; +} + +static int action_luksConvert(void) +{ + struct crypt_device *cd = NULL; + char *msg = NULL; + const char *to_type, *from_type; + int r; + + if (!strcmp(device_type, "luks2")) { + to_type = CRYPT_LUKS2; + } else if (!strcmp(device_type, "luks1")) { + to_type = CRYPT_LUKS1; + } else { + log_err(_("Invalid LUKS type, only luks1 and luks2 are supported.")); + return -EINVAL; + } + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + return r; + + crypt_set_confirm_callback(cd, yesDialog, NULL); + + if ((r = crypt_load(cd, CRYPT_LUKS, NULL)) || + !(from_type = crypt_get_type(cd))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device_header(NULL)); + crypt_free(cd); + return r; + } + + if (!strcmp(from_type, to_type)) { + log_err(_("Device is already %s type."), to_type); + crypt_free(cd); + return -EINVAL; + } + + if (asprintf(&msg, _("This operation will convert %s to %s format.\n"), + uuid_or_device_header(NULL), to_type) == -1) { + crypt_free(cd); + return -ENOMEM; + } + + if (yesDialog(msg, _("Operation aborted, device was NOT converted.\n"))) + r = crypt_convert(cd, to_type, NULL); + else + r = -EPERM; + + free(msg); + crypt_free(cd); + return r; +} + +static int _config_priority(struct crypt_device *cd) +{ + crypt_keyslot_info cs; + crypt_keyslot_priority priority = CRYPT_SLOT_PRIORITY_INVALID; + + if (!strcmp("normal", opt_priority)) + priority = CRYPT_SLOT_PRIORITY_NORMAL; + else if (!strcmp("prefer", opt_priority)) + priority = CRYPT_SLOT_PRIORITY_PREFER; + else if (!strcmp("ignore", opt_priority)) + priority = CRYPT_SLOT_PRIORITY_IGNORE; + + cs = crypt_keyslot_status(cd, opt_key_slot); + if (cs != CRYPT_SLOT_INVALID) + return crypt_keyslot_set_priority(cd, opt_key_slot, priority); + + return -EINVAL; +} + +static int _config_labels(struct crypt_device *cd) +{ + return crypt_set_label(cd, opt_label, opt_subsystem); +} + +static int action_luksConfig(void) +{ + struct crypt_device *cd = NULL; + int r; + + if (!opt_priority && !opt_label && !opt_subsystem) { + log_err(_("Option --priority, --label or --subsystem is missing.")); + return -EINVAL; + } + + if ((r = crypt_init(&cd, uuid_or_device_header(NULL)))) + return r; + + if ((r = crypt_load(cd, CRYPT_LUKS2, NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device_header(NULL)); + goto out; + } + + if (opt_priority && (r = _config_priority(cd))) + goto out; + + if ((opt_label || opt_subsystem) && (r = _config_labels(cd))) + goto out; +out: + crypt_free(cd); + return r; +} + +static int _token_add(struct crypt_device *cd) +{ + int r, token; + crypt_token_info token_info; + const struct crypt_token_params_luks2_keyring params = { + .key_description = opt_key_description + }; + + if (opt_token != CRYPT_ANY_TOKEN) { + token_info = crypt_token_status(cd, opt_token, NULL); + if (token_info < CRYPT_TOKEN_INACTIVE) { + log_err(_("Token %d is invalid."), opt_token); + return -EINVAL; + } else if (token_info > CRYPT_TOKEN_INACTIVE) { + log_err(_("Token %d in use."), opt_token); + return -EINVAL; + } + } + + r = crypt_token_luks2_keyring_set(cd, opt_token, ¶ms); + if (r < 0) { + log_err(_("Failed to add luks2-keyring token %d."), opt_token); + return r; + } + + token = r; + tools_token_msg(token, CREATED); + + r = crypt_token_assign_keyslot(cd, token, opt_key_slot); + if (r < 0) { + log_err(_("Failed to assign token %d to keyslot %d."), token, opt_key_slot); + (void) crypt_token_json_set(cd, token, NULL); + } + + return r; +} + +static int _token_remove(struct crypt_device *cd) +{ + crypt_token_info token_info; + int r; + + token_info = crypt_token_status(cd, opt_token, NULL); + if (token_info < CRYPT_TOKEN_INACTIVE) { + log_err(_("Token %d is invalid."), opt_token); + return -EINVAL; + } else if (token_info == CRYPT_TOKEN_INACTIVE) { + log_err(_("Token %d is not in use."), opt_token); + return -EINVAL; + } + + r = crypt_token_json_set(cd, opt_token, NULL); + tools_token_msg(r, REMOVED); + + return r; +} + +static int _token_import(struct crypt_device *cd) +{ + char *json; + size_t json_length; + crypt_token_info token_info; + int r, token; + + if (opt_token != CRYPT_ANY_TOKEN) { + token_info = crypt_token_status(cd, opt_token, NULL); + if (token_info < CRYPT_TOKEN_INACTIVE) { + log_err(_("Token %d is invalid."), opt_token); + return -EINVAL; + } else if (token_info > CRYPT_TOKEN_INACTIVE) { + log_err(_("Token %d in use."), opt_token); + return -EINVAL; + } + } + + r = tools_read_json_file(cd, opt_json_file, &json, &json_length); + if (r) + return r; + + r = crypt_token_json_set(cd, opt_token, json); + free(json); + if (r < 0) { + log_err(_("Failed to import token from file.")); + return r; + } + + token = r; + tools_token_msg(token, CREATED); + + if (opt_key_slot != CRYPT_ANY_SLOT) { + r = crypt_token_assign_keyslot(cd, token, opt_key_slot); + if (r < 0) { + log_err(_("Failed to assign token %d to keyslot %d."), token, opt_key_slot); + (void) crypt_token_json_set(cd, token, NULL); + } + } + + return r; +} + +static int _token_export(struct crypt_device *cd) +{ + const char *json; + int r; + + r = crypt_token_json_get(cd, opt_token, &json); + if (r < 0) { + log_err(_("Failed to get token %d for export."), opt_token); + return r; + } + + return tools_write_json_file(cd, opt_json_file, json); +} + +static int action_token(void) +{ + int r; + struct crypt_device *cd = NULL; + enum { ADD = 0, REMOVE, IMPORT, EXPORT } action; + + if (!strcmp(action_argv[0], "add")) { + if (!opt_key_description) { + log_err(_("--key-description parameter is mandatory for token add action.")); + return -EINVAL; + } + action = ADD; + } else if (!strcmp(action_argv[0], "remove")) { + if (opt_token == CRYPT_ANY_TOKEN) { + log_err(_("Action requires specific token. Use --token-id parameter.")); + return -EINVAL; + } + action = REMOVE; + } else if (!strcmp(action_argv[0], "import")) { + action = IMPORT; + } else if (!strcmp(action_argv[0], "export")) { + if (opt_token == CRYPT_ANY_TOKEN) { + log_err(_("Action requires specific token. Use --token-id parameter.")); + return -EINVAL; + } + action = EXPORT; + } else { + log_err(_("Invalid token operation %s."), action_argv[0]); + return -EINVAL; + } + + if ((r = crypt_init(&cd, uuid_or_device(opt_header_device ?: action_argv[1])))) + return r; + + if ((r = crypt_load(cd, CRYPT_LUKS2, NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device(opt_header_device ?: action_argv[1])); + crypt_free(cd); + return r; + } + + if (action == ADD) + r = _token_add(cd); /* adds only luks2-keyring type */ + else if (action == REMOVE) + r = _token_remove(cd); + else if (action == IMPORT) + r = _token_import(cd); + else if (action == EXPORT) + r = _token_export(cd); + else { + log_dbg("Internal token action error."); + r = -EINVAL; + } + + crypt_free(cd); + + return r; +} + +static int auto_detect_active_name(struct crypt_device *cd, const char *data_device, char *dm_name, size_t dm_name_len) +{ + int r; + + r = tools_lookup_crypt_device(cd, crypt_get_type(cd), data_device, dm_name, dm_name_len); + if (r > 0) + log_dbg("Device %s has %d active holders.", data_device, r); + + return r; +} + +static int _get_device_active_name(struct crypt_device *cd, const char *data_device, char *buffer, size_t buffer_size) +{ + char *msg; + int r; + + r = auto_detect_active_name(cd, action_argv[0], buffer, buffer_size); + if (r > 0) { + if (*buffer == '\0') { + log_err(_("Device %s is still in use."), data_device); + return -EINVAL; + } + if (!opt_batch_mode) + log_std(_("Auto-detected active dm device '%s' for data device %s.\n"), buffer, data_device); + } + if (r < 0) { + if (r == -ENOTBLK) + log_std(_("Device %s is not a block device.\n"), data_device); + else + log_err(_("Failed to auto-detect device %s holders."), data_device); + + r = asprintf(&msg, _("Unable to decide if device %s is activated or not.\n" + "Are you sure you want to proceed with reencryption in offline mode?\n" + "It may lead to data corruption if the device is actually activated.\n" + "To run reencryption in online mode, use --active-name parameter instead.\n"), data_device); + if (r < 0) + return -ENOMEM; + r = noDialog(msg, _("Operation aborted.\n")) ? 0 : -EINVAL; + free(msg); + } + + return r; +} + +static int action_reencrypt_load(struct crypt_device *cd) +{ + int r; + size_t passwordLen; + char dm_name[PATH_MAX] = {}, *password = NULL; + const char *active_name = NULL; + struct crypt_params_reencrypt params = { + .resilience = opt_resilience_mode ?: "checksum", + .hash = opt_resilience_hash ?: "sha256", + .max_hotzone_size = opt_hotzone_size / SECTOR_SIZE, + .device_size = opt_device_size / SECTOR_SIZE, + .flags = CRYPT_REENCRYPT_RESUME_ONLY + }; + + r = tools_get_key(NULL, &password, &passwordLen, + opt_keyfile_offset, opt_keyfile_size, opt_key_file, + opt_timeout, _verify_passphrase(0), 0, cd); + if (r < 0) + return r; + + if (!opt_active_name) { + r = _get_device_active_name(cd, action_argv[0], dm_name, sizeof(dm_name)); + if (r > 0) + active_name = dm_name; + if (r < 0) { + crypt_safe_free(password); + return -EINVAL; + } + } else + active_name = opt_active_name; + + r = crypt_reencrypt_init_by_passphrase(cd, active_name, password, passwordLen, opt_key_slot, opt_key_slot, NULL, NULL, ¶ms); + + crypt_safe_free(password); + + return r; +} + +static int action_encrypt_luks2(struct crypt_device **cd) +{ + const char *type, *activated_name = NULL; + int keyslot, r, fd; + uuid_t uuid; + size_t passwordLen; + char *msg, uuid_str[37], header_file[PATH_MAX] = { 0 }, *password = NULL; + uint32_t activate_flags = 0; + const struct crypt_params_luks2 luks2_params = { + .sector_size = opt_sector_size ?: SECTOR_SIZE + }; + struct crypt_params_reencrypt params = { + .mode = CRYPT_REENCRYPT_ENCRYPT, + .direction = opt_data_shift < 0 ? CRYPT_REENCRYPT_BACKWARD : CRYPT_REENCRYPT_FORWARD, + .resilience = opt_resilience_mode ?: "checksum", + .hash = opt_resilience_hash ?: "sha256", + .max_hotzone_size = opt_hotzone_size / SECTOR_SIZE, + .device_size = opt_device_size / SECTOR_SIZE, + .luks2 = &luks2_params, + .flags = CRYPT_REENCRYPT_INITIALIZE_ONLY + }; + + _set_reencryption_flags(¶ms.flags); + + type = luksType(device_type); + if (!type) + type = crypt_get_default_type(); + + if (strcmp(type, CRYPT_LUKS2)) { + log_err(_("Invalid LUKS device type.")); + return -EINVAL; + } + + if (!opt_data_shift && !opt_header_device) { + log_err(_("Encryption without detached header (--header) is not possible without data device size reduction (--reduce-device-size).")); + return -ENOTSUP; + } + + if (!opt_header_device && opt_offset && opt_data_shift && (opt_offset > (imaxabs(opt_data_shift) / (2 * SECTOR_SIZE)))) { + log_err(_("Requested data offset must be less than or equal to half of --reduce-device-size parameter.")); + return -EINVAL; + } + + /* TODO: ask user to confirm. It's useless to do data device reduction and than use smaller value */ + if (!opt_header_device && opt_offset && opt_data_shift && (opt_offset < (imaxabs(opt_data_shift) / (2 * SECTOR_SIZE)))) { + opt_data_shift = -(opt_offset * 2 * SECTOR_SIZE); + if (opt_data_shift >= 0) + return -EINVAL; + log_std(_("Adjusting --reduce-device-size value to twice the --offset %" PRIu64 " (sectors).\n"), opt_offset * 2); + } + + if (strncmp(type, CRYPT_LUKS2, strlen(CRYPT_LUKS2))) { + log_err(_("Encryption is supported only for LUKS2 format.")); + return -EINVAL; + } + + if (opt_uuid && uuid_parse(opt_uuid, uuid) == -1) { + log_err(_("Wrong LUKS UUID format provided.")); + return -EINVAL; + } + + if (!opt_uuid) { + uuid_generate(uuid); + uuid_unparse(uuid, uuid_str); + if (!(opt_uuid = strdup(uuid_str))) + return -ENOMEM; + } + + /* Check the data device is not LUKS device already */ + if ((r = crypt_init(cd, action_argv[0]))) + return r; + r = crypt_load(*cd, CRYPT_LUKS, NULL); + crypt_free(*cd); + *cd = NULL; + if (!r) { + r = asprintf(&msg, _("Detected LUKS device on %s. Do you want to encrypt that LUKS device again?"), action_argv[0]); + if (r == -1) + return -ENOMEM; + + r = yesDialog(msg, _("Operation aborted.\n")) ? 0 : -EINVAL; + free(msg); + if (r < 0) + return r; + } + + if (!opt_header_device) { + r = snprintf(header_file, sizeof(header_file), "LUKS2-temp-%s.new", opt_uuid); + if (r < 0 || (size_t)r >= sizeof(header_file)) + return -EINVAL; + + fd = open(header_file, O_CREAT|O_EXCL|O_WRONLY, S_IRUSR|S_IWUSR); + if (fd == -1) { + if (errno == EEXIST) + log_err(_("Temporary header file %s already exists. Aborting."), header_file); + else + log_err(_("Cannot create temporary header file %s."), header_file); + return -EINVAL; + } + + r = posix_fallocate(fd, 0, 4096); + close(fd); + if (r) { + log_err(_("Cannot create temporary header file %s."), header_file); + r = -EINVAL; + goto err; + } + + if (!(opt_header_device = strdup(header_file))) { + r = -ENOMEM; + goto err; + } + /* + * FIXME: just override offset here, but we should support both. + * offset and implicit offset via data shift (lvprepend?) + */ + if (!opt_offset) + opt_offset = imaxabs(opt_data_shift) / (2 * SECTOR_SIZE); + opt_data_shift >>= 1; + params.flags |= CRYPT_REENCRYPT_MOVE_FIRST_SEGMENT; + } else if (opt_data_shift < 0) { + if (!opt_luks2_metadata_size) + opt_luks2_metadata_size = 0x4000; /* missing default here */ + if (!opt_luks2_keyslots_size) + opt_luks2_keyslots_size = -opt_data_shift - 2 * opt_luks2_metadata_size; + + if (2 * opt_luks2_metadata_size + opt_luks2_keyslots_size > (uint64_t)-opt_data_shift) { + log_err("LUKS2 metadata size is larger than data shift value."); + return -EINVAL; + } + } + + r = _luksFormat(cd, &password, &passwordLen); + if (r < 0) + goto err; + + if (opt_data_shift) { + params.data_shift = imaxabs(opt_data_shift) / SECTOR_SIZE, + params.resilience = "datashift"; + } + keyslot = opt_key_slot < 0 ? 0 : opt_key_slot; + r = crypt_reencrypt_init_by_passphrase(*cd, NULL, password, passwordLen, + CRYPT_ANY_SLOT, keyslot, crypt_get_cipher(*cd), + crypt_get_cipher_mode(*cd), ¶ms); + if (r < 0) { + crypt_keyslot_destroy(*cd, keyslot); + goto err; + } + + /* Restore temporary header in head of data device */ + if (*header_file) { + crypt_free(*cd); + *cd = NULL; + + r = crypt_init(cd, action_argv[0]); + if (!r) + r = crypt_header_restore(*cd, CRYPT_LUKS2, header_file); + + if (r) { + log_err("Failed to place new header at head of device %s.", action_argv[0]); + goto err; + } + } + + /* activate device */ + if (action_argc > 1) { + activated_name = action_argv[1]; + _set_activation_flags(&activate_flags); + r = crypt_activate_by_passphrase(*cd, activated_name, opt_key_slot, password, passwordLen, activate_flags); + if (r >= 0) + log_std(_("%s/%s is now active and ready for online encryption.\n"), crypt_get_dir(), activated_name); + } + + if (r < 0) + goto err; + + /* just load reencryption context to continue reencryption */ + if (!opt_reencrypt_init_only) { + params.flags &= ~CRYPT_REENCRYPT_INITIALIZE_ONLY; + r = crypt_reencrypt_init_by_passphrase(*cd, activated_name, password, passwordLen, + CRYPT_ANY_SLOT, keyslot, NULL, NULL, ¶ms); + } +err: + crypt_safe_free(password); + if (*header_file) + unlink(header_file); + return r; +} + +static int action_decrypt_luks2(struct crypt_device *cd) +{ + int r; + char dm_name[PATH_MAX], *password = NULL; + const char *active_name = NULL; + struct crypt_params_reencrypt params = { + .mode = CRYPT_REENCRYPT_DECRYPT, + .direction = opt_data_shift > 0 ? CRYPT_REENCRYPT_FORWARD : CRYPT_REENCRYPT_BACKWARD, + .resilience = opt_data_shift ? "datashift" : (opt_resilience_mode ?: "checksum"), + .hash = opt_resilience_hash ?: "sha256", + .data_shift = imaxabs(opt_data_shift) / SECTOR_SIZE, + .device_size = opt_device_size / SECTOR_SIZE, + .max_hotzone_size = opt_hotzone_size / SECTOR_SIZE, + }; + size_t passwordLen; + + if (!crypt_get_metadata_device_name(cd) || !crypt_get_device_name(cd) || + !strcmp(crypt_get_metadata_device_name(cd), crypt_get_device_name(cd))) { + log_err(_("LUKS2 decryption is supported with detached header device only.")); + return -ENOTSUP; + } + + _set_reencryption_flags(¶ms.flags); + + r = tools_get_key(NULL, &password, &passwordLen, + opt_keyfile_offset, opt_keyfile_size, opt_key_file, + opt_timeout, _verify_passphrase(0), 0, cd); + if (r < 0) + return r; + + if (!opt_active_name) { + r = _get_device_active_name(cd, action_argv[0], dm_name, sizeof(dm_name)); + if (r > 0) + active_name = dm_name; + if (r < 0) + goto err; + } else + active_name = opt_active_name; + + if (!active_name) + log_dbg("Device %s seems unused. Proceeding with offline operation.", action_argv[0]); + + r = crypt_reencrypt_init_by_passphrase(cd, active_name, password, + passwordLen, opt_key_slot, CRYPT_ANY_SLOT, NULL, NULL, ¶ms); +err: + crypt_safe_free(password); + return r; +} + +struct keyslot_passwords { + char *password; + size_t passwordLen; + int new; +}; + +static struct keyslot_passwords *init_keyslot_passwords(size_t count) +{ + size_t i; + struct keyslot_passwords *tmp = calloc(count, sizeof(struct keyslot_passwords)); + + if (!tmp) + return tmp; + + for (i = 0; i < count; i++) + tmp[i].new = -1; + + return tmp; +} + +static int init_passphrase(struct keyslot_passwords *kp, size_t keyslot_passwords_length, + struct crypt_device *cd, const char *msg, int slot_to_check) +{ + crypt_keyslot_info ki; + char *password; + int r = -EINVAL, retry_count; + size_t passwordLen; + + if (slot_to_check != CRYPT_ANY_SLOT) { + ki = crypt_keyslot_status(cd, slot_to_check); + if (ki < CRYPT_SLOT_ACTIVE || ki == CRYPT_SLOT_UNBOUND) + return -ENOENT; + } + + retry_count = (opt_tries && !opt_key_file) ? opt_tries : 1; + while (retry_count--) { + r = tools_get_key(msg, &password, &passwordLen, 0, 0, + opt_key_file, 0, 0, 0 /*pwquality*/, cd); + if (r < 0) + return r; + if (quit) { + crypt_safe_free(password); + password = NULL; + passwordLen = 0; + return -EAGAIN; + } + + r = crypt_activate_by_passphrase(cd, NULL, slot_to_check, + password, passwordLen, 0); + if (r < 0) { + crypt_safe_free(password); + password = NULL; + passwordLen = 0; + } + if (r < 0 && r != -EPERM) + return r; + + if (r >= 0) { + tools_keyslot_msg(r, UNLOCKED); + if ((size_t)r >= keyslot_passwords_length) { + crypt_safe_free(password); + return -EINVAL; + } + kp[r].password = password; + kp[r].passwordLen = passwordLen; + break; + } + tools_passphrase_msg(r); + } + + password = NULL; + passwordLen = 0; + + return r; +} + +static int _check_luks2_keyslots(struct crypt_device *cd) +{ + int i, max = crypt_keyslot_max(CRYPT_LUKS2), active = 0, unbound = 0; + + if (max < 0) + return max; + + for (i = 0; i < max; i++) { + switch (crypt_keyslot_status(cd, i)) { + case CRYPT_SLOT_INVALID: + return -EINVAL; + case CRYPT_SLOT_ACTIVE: + /* fall-through */ + case CRYPT_SLOT_ACTIVE_LAST: + active++; + break; + case CRYPT_SLOT_UNBOUND: + unbound++; + /* fall-through */ + default: + break; + } + } + + /* at least one keyslot for reencryption plus new volume key */ + if (active + unbound > max - 2) { + log_err(_("Not enough free keyslots for reencryption.")); + return -EINVAL; + } + + if ((opt_key_slot == CRYPT_ANY_SLOT) && + (2 * active + unbound > max - 1)) { + log_err(_("Not enough free keyslots for reencryption.")); + return -EINVAL; + } + + return 0; +} + +static int fill_keyslot_passwords(struct crypt_device *cd, + struct keyslot_passwords *kp, size_t kp_size) +{ + char msg[128]; + crypt_keyslot_info ki; + int i, r = 0; + + if (opt_key_slot == CRYPT_ANY_SLOT && opt_key_file) { + for (i = 0; (size_t)i < kp_size; i++) { + ki = crypt_keyslot_status(cd, i); + if (ki == CRYPT_SLOT_INVALID) + return -EINVAL; + if (ki == CRYPT_SLOT_ACTIVE) { + log_err(_("Key file can be used only with --key-slot or with " + "exactly one key slot active.")); + return -EINVAL; + } + } + } + + if (opt_key_slot == CRYPT_ANY_SLOT) { + for (i = 0; (size_t)i < kp_size; i++) { + if (snprintf(msg, sizeof(msg), _("Enter passphrase for key slot %d: "), i) < 0) + return -EINVAL; + r = init_passphrase(kp, kp_size, cd, msg, i); + if (r == -ENOENT) + r = 0; + if (r < 0) + break; + } + } else { + if (snprintf(msg, sizeof(msg), _("Enter passphrase for key slot %u: "), opt_key_slot) < 0) + return -EINVAL; + r = init_passphrase(kp, kp_size, cd, msg, opt_key_slot); + } + + return r < 0 ? r : 0; +} + +static int assign_tokens(struct crypt_device *cd, int keyslot_old, int keyslot_new) +{ + int token = 0, r = crypt_token_is_assigned(cd, token, keyslot_old); + + while (r != -EINVAL) { + if (!r && (token != crypt_token_assign_keyslot(cd, token, keyslot_new))) + return -EINVAL; + token++; + r = crypt_token_is_assigned(cd, token, keyslot_old); + } + + /* we reached max token number, exit */ + return 0; +} + +static int action_reencrypt_luks2(struct crypt_device *cd) +{ + size_t i, vk_size, kp_size; + int r, keyslot_old = CRYPT_ANY_SLOT, keyslot_new = CRYPT_ANY_SLOT, key_size; + char dm_name[PATH_MAX], cipher [MAX_CIPHER_LEN], mode[MAX_CIPHER_LEN], *vk = NULL; + const char *active_name = NULL; + struct keyslot_passwords *kp; + struct crypt_params_luks2 luks2_params = {}; + struct crypt_params_reencrypt params = { + .mode = CRYPT_REENCRYPT_REENCRYPT, + .direction = opt_data_shift < 0 ? CRYPT_REENCRYPT_BACKWARD : CRYPT_REENCRYPT_FORWARD, + .resilience = opt_data_shift ? "datashift" : (opt_resilience_mode ?: "checksum"), + .hash = opt_resilience_hash ?: "sha256", + .data_shift = imaxabs(opt_data_shift) / SECTOR_SIZE, + .max_hotzone_size = opt_hotzone_size / SECTOR_SIZE, + .device_size = opt_device_size / SECTOR_SIZE, + .luks2 = &luks2_params, + }; + + _set_reencryption_flags(¶ms.flags); + + if (!opt_cipher && crypt_is_cipher_null(crypt_get_cipher(cd))) { + opt_cipher = strdup(DEFAULT_CIPHER(LUKS1)); + log_std(_("Switching data encryption cipher to %s.\n"), opt_cipher); + } + + if (!opt_cipher) { + strncpy(cipher, crypt_get_cipher(cd), MAX_CIPHER_LEN - 1); + strncpy(mode, crypt_get_cipher_mode(cd), MAX_CIPHER_LEN - 1); + cipher[MAX_CIPHER_LEN-1] = '\0'; + mode[MAX_CIPHER_LEN-1] = '\0'; + } else if ((r = crypt_parse_name_and_mode(opt_cipher, cipher, NULL, mode))) { + log_err(_("No known cipher specification pattern detected.")); + return r; + } + + luks2_params.sector_size = opt_sector_size ?: crypt_get_sector_size(cd); + + r = _check_luks2_keyslots(cd); + if (r) + return r; + + if (opt_key_size || opt_cipher) + key_size = get_adjusted_key_size(mode, DEFAULT_LUKS1_KEYBITS, 0); + else + key_size = crypt_get_volume_key_size(cd); + + if (!key_size) + return -EINVAL; + vk_size = key_size; + + r = crypt_keyslot_max(CRYPT_LUKS2); + if (r < 0) + return r; + kp_size = r; + kp = init_keyslot_passwords(kp_size); + + if (!kp) + return -ENOMEM; + + r = fill_keyslot_passwords(cd, kp, kp_size); + if (r) + goto err; + + if (opt_master_key_file) { + r = tools_read_mk(opt_master_key_file, &vk, key_size); + + if (r < 0) + goto err; + } + + r = -ENOENT; + + for (i = 0; i < kp_size; i++) { + if (kp[i].password && keyslot_new < 0) { + r = set_keyslot_params(cd, i); + if (r < 0) + break; + r = crypt_keyslot_add_by_key(cd, CRYPT_ANY_SLOT, vk, key_size, + kp[i].password, kp[i].passwordLen, CRYPT_VOLUME_KEY_NO_SEGMENT); + tools_keyslot_msg(r, CREATED); + if (r < 0) + break; + + kp[i].new = r; + keyslot_new = r; + keyslot_old = i; + if (!vk) { + /* key generated in crypt_keyslot_add_by_key() call above */ + vk = crypt_safe_alloc(key_size); + if (!vk) { + r = -ENOMEM; + break; + } + r = crypt_volume_key_get(cd, keyslot_new, vk, &vk_size, kp[i].password, kp[i].passwordLen); + if (r < 0) + break; + } + r = assign_tokens(cd, i, r); + if (r < 0) + break; + } else if (kp[i].password) { + r = set_keyslot_params(cd, i); + if (r < 0) + break; + r = crypt_keyslot_add_by_key(cd, CRYPT_ANY_SLOT, vk, key_size, + kp[i].password, kp[i].passwordLen, CRYPT_VOLUME_KEY_NO_SEGMENT | CRYPT_VOLUME_KEY_DIGEST_REUSE); + tools_keyslot_msg(r, CREATED); + if (r < 0) + break; + kp[i].new = r; + r = assign_tokens(cd, i, r); + if (r < 0) + break; + } + } + + if (r < 0) + goto err; + + if (!opt_active_name && !opt_reencrypt_init_only) { + r = _get_device_active_name(cd, action_argv[0], dm_name, sizeof(dm_name)); + if (r > 0) + active_name = dm_name; + if (r < 0) + goto err; + } else if (opt_active_name) + active_name = opt_active_name; + + if (!active_name && !opt_reencrypt_init_only) + log_dbg("Device %s seems unused. Proceeding with offline operation.", action_argv[0]); + + r = crypt_reencrypt_init_by_passphrase(cd, active_name, kp[keyslot_old].password, + kp[keyslot_old].passwordLen, keyslot_old, kp[keyslot_old].new, + cipher, mode, ¶ms); +err: + crypt_safe_free(vk); + for (i = 0; i < kp_size; i++) { + crypt_safe_free(kp[i].password); + if (r < 0 && kp[i].new >= 0 && + crypt_reencrypt_status(cd, NULL) == CRYPT_REENCRYPT_NONE && + crypt_keyslot_destroy(cd, kp[i].new)) + log_dbg("Failed to remove keyslot %d with unbound key.", kp[i].new); + } + free(kp); + return r; +} + +static int action_reencrypt(void) +{ + uint32_t flags; + struct crypt_device *cd = NULL; + struct crypt_params_integrity ip = { 0 }; + int r = 0; + + if (action_argc < 1 && (!opt_active_name || opt_encrypt)) { + log_err(_("Command requires device as argument.")); + return -EINVAL; + } + + if (!opt_encrypt || opt_reencrypt_resume_only) { + if (opt_active_name) { + r = crypt_init_by_name_and_header(&cd, opt_active_name, opt_header_device); + if (r || !crypt_get_type(cd) || strcmp(crypt_get_type(cd), CRYPT_LUKS2)) { + log_err(_("Device %s is not a valid LUKS device."), opt_active_name); + r = -EINVAL; + goto out; + } + } else { + if ((r = crypt_init_data_device(&cd, uuid_or_device(opt_header_device ?: action_argv[0]), action_argv[0]))) + return r; + + if ((r = crypt_load(cd, CRYPT_LUKS, NULL))) { + log_err(_("Device %s is not a valid LUKS device."), + uuid_or_device(opt_header_device ?: action_argv[0])); + goto out; + } + if (strcmp(crypt_get_type(cd), CRYPT_LUKS2)) { + log_err(_("Only LUKS2 format is currently supported. Please use cryptsetup-reencrypt tool for LUKS1.")); + r = -EINVAL; + goto out; + } + } + + if (crypt_persistent_flags_get(cd, CRYPT_FLAGS_REQUIREMENTS, &flags)) { + r = -EINVAL; + goto out; + } + + if (flags & CRYPT_REQUIREMENT_OFFLINE_REENCRYPT) { + log_err(_("Legacy offline reencryption already in-progress. Use cryptsetup-reencrypt utility.")); + r = -EINVAL; + goto out; + } + + if (flags & CRYPT_REQUIREMENT_ONLINE_REENCRYPT) + r = -EBUSY; + + /* raw integrity info is available since 2.0 */ + if (crypt_get_integrity_info(cd, &ip) || ip.tag_size) { + log_err(_("Reencryption of device with integrity profile is not supported.")); + r = -ENOTSUP; + goto out; + } + } + + if (r == -EBUSY) { + if (opt_reencrypt_init_only) + log_err(_("LUKS2 reencryption already initialized. Aborting operation.")); + else + r = action_reencrypt_load(cd); + } else if (!r && opt_reencrypt_resume_only) { + log_err(_("LUKS2 device is not in reencryption.")); + r = -EINVAL; + } else if (opt_decrypt) + r = action_decrypt_luks2(cd); + else if (opt_encrypt && !opt_reencrypt_resume_only) + r = action_encrypt_luks2(&cd); + else + r = action_reencrypt_luks2(cd); + + if (r >= 0 && !opt_reencrypt_init_only) { + set_int_handler(0); + r = crypt_reencrypt(cd, tools_reencrypt_progress); + } +out: + crypt_free(cd); + + return r; +} + +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_("<device> [--type <type>] [<name>]"),N_("open device as <name>") }, + { "close", action_close, 1, 1, N_("<name>"), N_("close device (remove mapping)") }, + { "resize", action_resize, 1, 1, N_("<name>"), N_("resize active device") }, + { "status", action_status, 1, 0, N_("<name>"), N_("show device status") }, + { "benchmark", action_benchmark, 0, 0, N_("[--cipher <cipher>]"), N_("benchmark cipher") }, + { "repair", action_luksRepair, 1, 1, N_("<device>"), N_("try to repair on-disk metadata") }, + { "reencrypt", action_reencrypt, 0, 0, N_("<device>"), N_("reencrypt LUKS2 device") }, + { "erase", action_luksErase , 1, 1, N_("<device>"), N_("erase all keyslots (remove encryption key)") }, + { "convert", action_luksConvert, 1, 1, N_("<device>"), N_("convert LUKS from/to LUKS2 format") }, + { "config", action_luksConfig, 1, 1, N_("<device>"), N_("set permanent configuration options for LUKS2") }, + { "luksFormat", action_luksFormat, 1, 1, N_("<device> [<new key file>]"), N_("formats a LUKS device") }, + { "luksAddKey", action_luksAddKey, 1, 1, N_("<device> [<new key file>]"), N_("add key to LUKS device") }, + { "luksRemoveKey",action_luksRemoveKey,1, 1, N_("<device> [<key file>]"), N_("removes supplied key or key file from LUKS device") }, + { "luksChangeKey",action_luksChangeKey,1, 1, N_("<device> [<key file>]"), N_("changes supplied key or key file of LUKS device") }, + { "luksConvertKey",action_luksConvertKey,1, 1, N_("<device> [<key file>]"), N_("converts a key to new pbkdf parameters") }, + { "luksKillSlot", action_luksKillSlot, 2, 1, N_("<device> <key slot>"), N_("wipes key with number <key slot> from LUKS device") }, + { "luksUUID", action_luksUUID, 1, 0, N_("<device>"), N_("print UUID of LUKS device") }, + { "isLuks", action_isLuks, 1, 0, N_("<device>"), N_("tests <device> for LUKS partition header") }, + { "luksDump", action_luksDump, 1, 1, N_("<device>"), N_("dump LUKS partition information") }, + { "tcryptDump", action_tcryptDump, 1, 1, N_("<device>"), N_("dump TCRYPT device information") }, + { "bitlkDump", action_bitlkDump, 1, 1, N_("<device>"), N_("dump BITLK device information") }, + { "luksSuspend", action_luksSuspend, 1, 1, N_("<device>"), N_("Suspend LUKS device and wipe key (all IOs are frozen)") }, + { "luksResume", action_luksResume, 1, 1, N_("<device>"), N_("Resume suspended LUKS device") }, + { "luksHeaderBackup", action_luksBackup,1,1, N_("<device>"), N_("Backup LUKS device header and keyslots") }, + { "luksHeaderRestore",action_luksRestore,1,1,N_("<device>"), N_("Restore LUKS device header and keyslots") }, + { "token", action_token, 2, 0, N_("<add|remove|import|export> <device>"), N_("Manipulate LUKS2 tokens") }, + {} +}; + +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; + const struct crypt_pbkdf_type *pbkdf_luks1, *pbkdf_luks2; + + log_std("%s\n",PACKAGE_STRING); + + poptPrintHelp(popt_context, stdout, 0); + + log_std(_("\n" + "<action> 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 <action> syntax aliases:\n" + "\topen: create (plainOpen), luksOpen, loopaesOpen, tcryptOpen, bitlkOpen\n" + "\tclose: remove (plainClose), luksClose, loopaesClose, tcryptClose, bitlkClose\n")); + log_std(_("\n" + "<name> is the device to create under %s\n" + "<device> is the encrypted device\n" + "<key slot> is the LUKS key slot number to modify\n" + "<key file> optional key file for the new key for luksAddKey action\n"), + crypt_get_dir()); + + log_std(_("\nDefault compiled-in metadata format is %s (for luksFormat action).\n"), + crypt_get_default_type()); + + pbkdf_luks1 = crypt_get_pbkdf_default(CRYPT_LUKS1); + pbkdf_luks2 = crypt_get_pbkdf_default(CRYPT_LUKS2); + log_std(_("\nDefault compiled-in key and passphrase parameters:\n" + "\tMaximum keyfile size: %dkB, " + "Maximum interactive passphrase length %d (characters)\n" + "Default PBKDF for LUKS1: %s, iteration time: %d (ms)\n" + "Default PBKDF for LUKS2: %s\n" + "\tIteration time: %d, Memory required: %dkB, Parallel threads: %d\n"), + DEFAULT_KEYFILE_SIZE_MAXKB, DEFAULT_PASSPHRASE_SIZE_MAX, + pbkdf_luks1->type, pbkdf_luks1->time_ms, + pbkdf_luks2->type, pbkdf_luks2->time_ms, pbkdf_luks2->max_memory_kb, + pbkdf_luks2->parallel_threads); + + 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" + "\tLUKS: %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); +#if defined(ENABLE_LUKS_ADJUST_XTS_KEYSIZE) && DEFAULT_LUKS1_KEYBITS != 512 + log_std(_("\tLUKS: Default keysize with XTS mode (two internal keys) will be doubled.\n")); +#endif + tools_cleanup(); + poptFreeContext(popt_context); + exit(EXIT_SUCCESS); + } else if (key->shortName == 'V') { + log_std("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION); + tools_cleanup(); + poptFreeContext(popt_context); + 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 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 }, + { "version",'V', POPT_ARG_NONE, NULL, 0, N_("Print package version"), NULL }, + POPT_TABLEEND + }; + static struct poptOption popt_options[] = { + { NULL, '\0', POPT_ARG_INCLUDE_TABLE, popt_help_options, 0, N_("Help options:"), 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 }, + { "debug-json", '\0', POPT_ARG_NONE, &opt_debug_json, 0, N_("Show debug messages including JSON metadata"), 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, NULL, 6, 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_STRING, NULL, 4, 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_STRING, NULL, 5, 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, NULL, 1, N_("The size of the device"), N_("SECTORS") }, + { "device-size", '\0', POPT_ARG_STRING, &opt_device_size_str, 0, N_("Use only specified device size (ignore rest of device). DANGEROUS!"), N_("bytes") }, + { "offset", 'o', POPT_ARG_STRING, NULL, 2, N_("The start offset in the backend device"), N_("SECTORS") }, + { "skip", 'p', POPT_ARG_STRING, NULL, 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 }, + { "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") }, + { "progress-frequency",'\0', POPT_ARG_INT, &opt_progress_frequency, 0, N_("Progress line update (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 <n> 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 }, + { "tcrypt-hidden", '\0', POPT_ARG_NONE, &opt_tcrypt_hidden, 0, N_("Use hidden header (hidden TCRYPT device)"), NULL }, + { "tcrypt-system", '\0', POPT_ARG_NONE, &opt_tcrypt_system, 0, N_("Device is system TCRYPT drive (with bootloader)"), NULL }, + { "tcrypt-backup", '\0', POPT_ARG_NONE, &opt_tcrypt_backup, 0, N_("Use backup (secondary) TCRYPT header"), NULL }, + { "veracrypt", '\0', POPT_ARG_NONE, &opt_veracrypt, 0, N_("Scan also for VeraCrypt compatible device"), NULL }, + { "veracrypt-pim", '\0', POPT_ARG_INT, &opt_veracrypt_pim, 0, N_("Personal Iteration Multiplier for VeraCrypt compatible device"), NULL }, + { "veracrypt-query-pim", '\0', POPT_ARG_NONE, &opt_veracrypt_query_pim, 0, N_("Query Personal Iteration Multiplier for VeraCrypt compatible device"), NULL }, + { "type", 'M', POPT_ARG_STRING, &opt_type, 0, N_("Type of device metadata: luks, luks1, luks2, plain, loopaes, tcrypt, bitlk"), NULL }, + { "force-password", '\0', POPT_ARG_NONE, &opt_force_password, 0, N_("Disable password quality check (if enabled)"), NULL }, + { "perf-same_cpu_crypt",'\0', POPT_ARG_NONE, &opt_perf_same_cpu_crypt, 0, N_("Use dm-crypt same_cpu_crypt performance compatibility option"), NULL }, + { "perf-submit_from_crypt_cpus",'\0', POPT_ARG_NONE, &opt_perf_submit_from_crypt_cpus,0,N_("Use dm-crypt submit_from_crypt_cpus performance compatibility option"), NULL }, + { "perf-no_read_workqueue",'\0', POPT_ARG_NONE, &opt_perf_no_read_workqueue,0,N_("Bypass dm-crypt workqueue and process read requests synchronously"), NULL }, + { "perf-no_write_workqueue",'\0', POPT_ARG_NONE, &opt_perf_no_write_workqueue,0,N_("Bypass dm-crypt workqueue and process write requests synchronously"), NULL }, + { "deferred", '\0', POPT_ARG_NONE, &opt_deferred_remove, 0, N_("Device removal is deferred until the last user closes it"), NULL }, + { "serialize-memory-hard-pbkdf", '\0', POPT_ARG_NONE, &opt_serialize_memory_hard_pbkdf, 0, N_("Use global lock to serialize memory hard PBKDF (OOM workaround)"), NULL }, + { "iter-time", 'i', POPT_ARG_INT, &opt_iteration_time, 0, N_("PBKDF iteration time for LUKS (in ms)"), N_("msecs") }, + { "pbkdf", '\0', POPT_ARG_STRING, &opt_pbkdf, 0, N_("PBKDF algorithm (for LUKS2): argon2i, argon2id, pbkdf2"), NULL }, + { "pbkdf-memory", '\0', POPT_ARG_LONG, &opt_pbkdf_memory, 0, N_("PBKDF memory cost limit"), N_("kilobytes") }, + { "pbkdf-parallel", '\0', POPT_ARG_LONG, &opt_pbkdf_parallel, 0, N_("PBKDF parallel cost"), N_("threads") }, + { "pbkdf-force-iterations",'\0',POPT_ARG_LONG, &opt_pbkdf_iterations, 0, N_("PBKDF iterations cost (forced, disables benchmark)"), NULL }, + { "priority", '\0', POPT_ARG_STRING, &opt_priority, 0, N_("Keyslot priority: ignore, normal, prefer"), NULL }, + { "disable-locks", '\0', POPT_ARG_NONE, &opt_disable_locks, 0, N_("Disable locking of on-disk metadata"), NULL }, + { "disable-keyring", '\0', POPT_ARG_NONE, &opt_disable_keyring, 0, N_("Disable loading volume keys via kernel keyring"), NULL }, + { "integrity", 'I', POPT_ARG_STRING, &opt_integrity, 0, N_("Data integrity algorithm (LUKS2 only)"), NULL }, + { "integrity-no-journal",'\0',POPT_ARG_NONE, &opt_integrity_nojournal, 0, N_("Disable journal for integrity device"), NULL }, + { "integrity-no-wipe", '\0', POPT_ARG_NONE, &opt_integrity_no_wipe, 0, N_("Do not wipe device after format"), NULL }, + { "integrity-legacy-padding",'\0', POPT_ARG_NONE, &opt_integrity_legacy_padding,0, N_("Use inefficient legacy padding (old kernels)"), NULL }, + { "token-only", '\0', POPT_ARG_NONE, &opt_token_only, 0, N_("Do not ask for passphrase if activation by token fails"), NULL }, + { "token-id", '\0', POPT_ARG_INT, &opt_token, 0, N_("Token number (default: any)"), NULL }, + { "key-description", '\0', POPT_ARG_STRING, &opt_key_description, 0, N_("Key description"), NULL }, + { "sector-size", '\0', POPT_ARG_INT, &opt_sector_size, 0, N_("Encryption sector size (default: 512 bytes)"), NULL }, + { "iv-large-sectors", '\0', POPT_ARG_NONE, &opt_iv_large_sectors, 0, N_("Use IV counted in sector size (not in 512 bytes)"), NULL }, + { "persistent", '\0', POPT_ARG_NONE, &opt_persistent, 0, N_("Set activation flags persistent for device"), NULL }, + { "label", '\0', POPT_ARG_STRING, &opt_label, 0, N_("Set label for the LUKS2 device"), NULL }, + { "subsystem", '\0', POPT_ARG_STRING, &opt_subsystem, 0, N_("Set subsystem label for the LUKS2 device"), NULL }, + { "unbound", '\0', POPT_ARG_NONE, &opt_unbound, 0, N_("Create or dump unbound (no assigned data segment) LUKS2 keyslot"), NULL }, + { "json-file", '\0', POPT_ARG_STRING, &opt_json_file, 0, N_("Read or write the json from or to a file"), NULL }, + { "luks2-metadata-size",'\0',POPT_ARG_STRING,&opt_luks2_metadata_size_str,0,N_("LUKS2 header metadata area size"), N_("bytes") }, + { "luks2-keyslots-size",'\0',POPT_ARG_STRING,&opt_luks2_keyslots_size_str,0,N_("LUKS2 header keyslots area size"), N_("bytes") }, + { "refresh", '\0', POPT_ARG_NONE, &opt_refresh, 0, N_("Refresh (reactivate) device with new parameters"), NULL }, + { "keyslot-key-size", '\0', POPT_ARG_INT, &opt_keyslot_key_size, 0, N_("LUKS2 keyslot: The size of the encryption key"), N_("BITS") }, + { "keyslot-cipher", '\0', POPT_ARG_STRING, &opt_keyslot_cipher, 0, N_("LUKS2 keyslot: The cipher used for keyslot encryption"), NULL }, + { "encrypt", '\0', POPT_ARG_NONE, &opt_encrypt, 0, N_("Encrypt LUKS2 device (in-place encryption)."), NULL }, + { "decrypt", '\0', POPT_ARG_NONE, &opt_decrypt, 0, N_("Decrypt LUKS2 device (remove encryption)."), NULL }, + { "init-only", '\0', POPT_ARG_NONE, &opt_reencrypt_init_only, 0, N_("Initialize LUKS2 reencryption in metadata only."), NULL }, + { "resume-only", '\0', POPT_ARG_NONE, &opt_reencrypt_resume_only, 0, N_("Resume initialized LUKS2 reencryption only."), NULL }, + { "reduce-device-size",'\0', POPT_ARG_STRING, &opt_reduce_size_str, 0, N_("Reduce data device size (move data offset). DANGEROUS!"), N_("bytes") }, + { "hotzone-size", '\0', POPT_ARG_STRING, &opt_hotzone_size_str, 0, N_("Maximal reencryption hotzone size."), N_("bytes") }, + { "resilience", '\0', POPT_ARG_STRING, &opt_resilience_mode, 0, N_("Reencryption hotzone resilience type (checksum,journal,none)"), NULL }, + { "resilience-hash", '\0', POPT_ARG_STRING, &opt_resilience_hash, 0, N_("Reencryption hotzone checksums hash"), NULL }, + { "active-name", '\0', POPT_ARG_STRING, &opt_active_name, 0, N_("Override device autodetection of dm device to be reencrypted"), NULL }, + POPT_TABLEEND + }; + poptContext popt_context; + struct action_type *action; + const char *aname; + int r, total_keyfiles = 0; + + crypt_set_log_callback(NULL, tool_log, NULL); + + setlocale(LC_ALL, ""); + bindtextdomain(PACKAGE, LOCALEDIR); + textdomain(PACKAGE); + + popt_context = poptGetContext(PACKAGE, argc, argv, popt_options, 0); + poptSetOtherOptionHelp(popt_context, + _("[OPTION...] <action> <action-specific>")); + + while((r = poptGetNextOpt(popt_context)) > 0) { + unsigned long long ull_value; + char *endp, *str = poptGetOptArg(popt_context); + + if (r == 6) { + free(opt_key_file); + opt_key_file = str; + if (tools_is_stdin(str)) { + free(opt_keyfile_stdin); + opt_keyfile_stdin = strdup(str); + } else if (opt_keyfiles_count < MAX_KEYFILES) + opt_keyfiles[opt_keyfiles_count++] = strdup(str); + total_keyfiles++; + continue; + } + + errno = 0; + ull_value = strtoull(str, &endp, 0); + if (*endp || !*str || !isdigit(*str) || + (errno == ERANGE && ull_value == ULLONG_MAX) || + (errno != 0 && ull_value == 0)) + r = POPT_ERROR_BADNUMBER; + + free(str); + + 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; + case 4: + opt_keyfile_offset = ull_value; + break; + case 5: + opt_new_keyfile_offset = ull_value; + break; + } + + if (r < 0) + break; + } + + if (r < -1) + usage(popt_context, EXIT_FAILURE, poptStrerror(r), + poptBadOption(popt_context, POPT_BADOPTION_NOALIAS)); + + if (!(aname = poptGetArg(popt_context))) + usage(popt_context, EXIT_FAILURE, _("Argument <action> 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"; + device_type = "plain"; + } else if (!strcmp(aname, "plainOpen")) { + aname = "open"; + device_type = "plain"; + } else if (!strcmp(aname, "luksOpen")) { + aname = "open"; + device_type = "luks"; + } else if (!strcmp(aname, "loopaesOpen")) { + aname = "open"; + device_type = "loopaes"; + } else if (!strcmp(aname, "tcryptOpen")) { + aname = "open"; + device_type = "tcrypt"; + } else if (!strcmp(aname, "bitlkOpen")) { + aname = "open"; + device_type = "bitlk"; + } else if (!strcmp(aname, "tcryptDump")) { + device_type = "tcrypt"; + } else if (!strcmp(aname, "bitlkDump")) { + device_type = "bitlk"; + } else if (!strcmp(aname, "remove") || + !strcmp(aname, "plainClose") || + !strcmp(aname, "luksClose") || + !strcmp(aname, "loopaesClose") || + !strcmp(aname, "tcryptClose") || + !strcmp(aname, "bitlkClose")) { + aname = "close"; + } else if (!strcmp(aname, "luksErase")) { + aname = "erase"; + device_type = "luks"; + } else if (!strcmp(aname, "luksConfig")) { + aname = "config"; + device_type = "luks2"; + } else if (!strcmp(aname, "refresh")) { + aname = "open"; + opt_refresh = 1; + } else if (opt_type) + device_type = opt_type; + + /* ignore user supplied type and query device type instead */ + if (opt_refresh) + device_type = NULL; + + 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_refresh && opt_test_passphrase) + usage(popt_context, EXIT_FAILURE, + _("Options --refresh and --test-passphrase are mutually exclusive."), + poptGetInvocationName(popt_context)); + + if (opt_deferred_remove && strcmp(aname, "close")) + usage(popt_context, EXIT_FAILURE, + _("Option --deferred is allowed only for close command."), + poptGetInvocationName(popt_context)); + + if (opt_shared && (strcmp(aname, "open") || strcmp_or_null(device_type, "plain"))) + usage(popt_context, EXIT_FAILURE, + _("Option --shared is allowed only for open of plain device."), + poptGetInvocationName(popt_context)); + + if (opt_allow_discards && strcmp(aname, "open")) + usage(popt_context, EXIT_FAILURE, + _("Option --allow-discards is allowed only for open operation."), + poptGetInvocationName(popt_context)); + + if (opt_persistent && strcmp(aname, "open")) + usage(popt_context, EXIT_FAILURE, + _("Option --persistent is allowed only for open operation."), + poptGetInvocationName(popt_context)); + + if (opt_serialize_memory_hard_pbkdf && strcmp(aname, "open")) + usage(popt_context, EXIT_FAILURE, + _("Option --serialize-memory-hard-pbkdf is allowed only for open operation."), + poptGetInvocationName(popt_context)); + + if (opt_persistent && opt_test_passphrase) + usage(popt_context, EXIT_FAILURE, + _("Option --persistent is not allowed with --test-passphrase."), + poptGetInvocationName(popt_context)); + + if (opt_key_size && + strcmp(aname, "reencrypt") && + strcmp(aname, "luksFormat") && + strcmp(aname, "open") && + strcmp(aname, "benchmark") && + strcmp(aname, "luksAddKey")) + usage(popt_context, EXIT_FAILURE, + _("Option --key-size is allowed only for luksFormat, luksAddKey,\n" + "open and benchmark actions. To limit read from keyfile use --keyfile-size=(bytes)."), + poptGetInvocationName(popt_context)); + + if (opt_integrity && strcmp(aname, "luksFormat")) + usage(popt_context, EXIT_FAILURE, + _("Option --integrity is allowed only for luksFormat (LUKS2)."), + poptGetInvocationName(popt_context)); + + if (opt_integrity_no_wipe && !opt_integrity) + usage(popt_context, EXIT_FAILURE, + _("Option --integrity-no-wipe" + " can be used only for format action with integrity extension."), + poptGetInvocationName(popt_context)); + + if ((opt_label || opt_subsystem) && strcmp(aname, "luksFormat") && strcmp(aname, "config")) + usage(popt_context, EXIT_FAILURE, + _("Options --label and --subsystem are allowed only for luksFormat and config LUKS2 operations."), + poptGetInvocationName(popt_context)); + + if (opt_test_passphrase && (strcmp(aname, "open") || !device_type || + (strncmp(device_type, "luks", 4) && strcmp(device_type, "tcrypt") && strcmp(device_type, "bitlk")))) + usage(popt_context, EXIT_FAILURE, + _("Option --test-passphrase is allowed only for open of LUKS, TCRYPT and BITLK devices."), + poptGetInvocationName(popt_context)); + + if (opt_key_size % 8 || opt_keyslot_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) + 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.")); + else + opt_key_file = strdup(action_argv[1]); + } + + if (opt_keyfile_size < 0 || opt_new_keyfile_size < 0 || opt_key_size < 0) + usage(popt_context, EXIT_FAILURE, + _("Negative number for option not permitted."), + poptGetInvocationName(popt_context)); + + if (total_keyfiles > 1 && (strcmp_or_null(device_type, "tcrypt"))) + usage(popt_context, EXIT_FAILURE, _("Only one --key-file argument is allowed."), + 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_luks2_metadata_size_str || opt_luks2_keyslots_size_str) && strcmp(aname, "luksFormat") && strcmp(aname, "reencrypt")) + usage(popt_context, EXIT_FAILURE, _("Options --luks2-metadata-size and --opt-luks2-keyslots-size " + "are allowed only for luksFormat with LUKS2."), + poptGetInvocationName(popt_context)); + if (opt_luks2_metadata_size_str && + tools_string_to_size(NULL, opt_luks2_metadata_size_str, &opt_luks2_metadata_size)) + usage(popt_context, EXIT_FAILURE, _("Invalid LUKS2 metadata size specification."), + poptGetInvocationName(popt_context)); + if (opt_luks2_keyslots_size_str && + tools_string_to_size(NULL, opt_luks2_keyslots_size_str, &opt_luks2_keyslots_size)) + usage(popt_context, EXIT_FAILURE, _("Invalid LUKS2 keyslots size specification."), + poptGetInvocationName(popt_context)); + + if (opt_align_payload && opt_offset) + usage(popt_context, EXIT_FAILURE, _("Options --align-payload and --offset cannot be combined."), + poptGetInvocationName(popt_context)); + + if (opt_skip && (strcmp(aname, "open") || + (strcmp_or_null(device_type, "plain") && strcmp(device_type, "loopaes")))) + usage(popt_context, EXIT_FAILURE, + _("Option --skip is supported only for open of plain and loopaes devices."), + poptGetInvocationName(popt_context)); + + if (opt_offset && ((strcmp(aname, "reencrypt") && strcmp(aname, "open") && strcmp(aname, "luksFormat")) || + (!strcmp(aname, "open") && strcmp_or_null(device_type, "plain") && strcmp(device_type, "loopaes")) || + (!strcmp(aname, "luksFormat") && device_type && strncmp(device_type, "luks", 4)))) + usage(popt_context, EXIT_FAILURE, + _("Option --offset is supported only for open of plain and loopaes devices, luksFormat and device reencryption."), + poptGetInvocationName(popt_context)); + + if ((opt_tcrypt_hidden || opt_tcrypt_system || opt_tcrypt_backup) && strcmp(aname, "tcryptDump") && + (strcmp(aname, "open") || !device_type || strcmp(device_type, "tcrypt"))) + usage(popt_context, EXIT_FAILURE, + _("Option --tcrypt-hidden, --tcrypt-system or --tcrypt-backup is supported only for TCRYPT device."), + poptGetInvocationName(popt_context)); + + if (opt_tcrypt_hidden && opt_allow_discards) + usage(popt_context, EXIT_FAILURE, + _("Option --tcrypt-hidden cannot be combined with --allow-discards."), + poptGetInvocationName(popt_context)); + + if (opt_veracrypt && (!device_type || strcmp(device_type, "tcrypt"))) + usage(popt_context, EXIT_FAILURE, + _("Option --veracrypt is supported only for TCRYPT device type."), + poptGetInvocationName(popt_context)); + + if (opt_veracrypt_pim != -1) { + if (opt_veracrypt_pim < -1) { + usage(popt_context, EXIT_FAILURE, + _("Invalid argument for parameter --veracrypt-pim supplied."), + poptGetInvocationName(popt_context)); + } else if (!opt_veracrypt) { + usage(popt_context, EXIT_FAILURE, + _("Option --veracrypt-pim is supported only for VeraCrypt compatible devices."), + poptGetInvocationName(popt_context)); + } + } + + if (opt_veracrypt_query_pim) { + if (!opt_veracrypt) { + usage(popt_context, EXIT_FAILURE, + _("Option --veracrypt-query-pim is supported only for VeraCrypt compatible devices."), + poptGetInvocationName(popt_context)); + } else if (opt_veracrypt_pim != -1) { + usage(popt_context, EXIT_FAILURE, + _("The options --veracrypt-pim and --veracrypt-query-pim are mutually exclusive."), + poptGetInvocationName(popt_context)); + } + } + + if (opt_priority && strcmp(opt_priority, "normal") && strcmp(opt_priority, "prefer") && strcmp(opt_priority, "ignore")) + usage(popt_context, EXIT_FAILURE, + _("Option --priority can be only ignore/normal/prefer."), + poptGetInvocationName(popt_context)); + + if (!strcmp(aname, "config") && opt_priority && opt_key_slot == CRYPT_ANY_SLOT) + usage(popt_context, EXIT_FAILURE, + _("Keyslot specification is required."), + poptGetInvocationName(popt_context)); + + if (opt_pbkdf && crypt_parse_pbkdf(opt_pbkdf, &set_pbkdf)) + usage(popt_context, EXIT_FAILURE, + _("Password-based key derivation function (PBKDF) can be only pbkdf2 or argon2i/argon2id."), + poptGetInvocationName(popt_context)); + + if (opt_pbkdf_iterations && opt_iteration_time) + usage(popt_context, EXIT_FAILURE, + _("PBKDF forced iterations cannot be combined with iteration time option."), + poptGetInvocationName(popt_context)); + + if (opt_sector_size && strcmp(aname, "reencrypt") && strcmp(aname, "luksFormat") && + (strcmp(aname, "open") || strcmp_or_null(device_type, "plain"))) + usage(popt_context, EXIT_FAILURE, + _("Sector size option is not supported for this command."), + poptGetInvocationName(popt_context)); + + if (opt_sector_size && (opt_sector_size < SECTOR_SIZE || opt_sector_size > MAX_SECTOR_SIZE || + (opt_sector_size & (opt_sector_size - 1)))) + usage(popt_context, EXIT_FAILURE, + _("Unsupported encryption sector size."), + poptGetInvocationName(popt_context)); + + if (opt_iv_large_sectors && (strcmp(aname, "open") || strcmp_or_null(opt_type, "plain") || + opt_sector_size <= SECTOR_SIZE)) + usage(popt_context, EXIT_FAILURE, + _("Large IV sectors option is supported only for opening plain type device with sector size larger than 512 bytes."), + poptGetInvocationName(popt_context)); + + if (opt_unbound && !opt_key_size && !strcmp(aname, "luksAddKey")) + usage(popt_context, EXIT_FAILURE, + _("Key size is required with --unbound option."), + poptGetInvocationName(popt_context)); + + if (opt_unbound && !strcmp(aname, "luksDump") && opt_key_slot == CRYPT_ANY_SLOT) + usage(popt_context, EXIT_FAILURE, + _("Keyslot specification is required."), + poptGetInvocationName(popt_context)); + + if (opt_unbound && strcmp(aname, "luksAddKey") && strcmp(aname, "luksDump")) + usage(popt_context, EXIT_FAILURE, + _("Option --unbound may be used only with luksAddKey and luksDump actions."), + poptGetInvocationName(popt_context)); + + if (opt_refresh && strcmp(aname, "open")) + usage(popt_context, EXIT_FAILURE, + _("Option --refresh may be used only with open action."), + poptGetInvocationName(popt_context)); + + if (opt_debug || opt_debug_json) { + opt_debug = 1; + opt_verbose = 1; + crypt_set_debug_level(opt_debug_json? CRYPT_DEBUG_JSON : CRYPT_DEBUG_ALL); + dbg_version_and_cmd(argc, argv); + } + + if (opt_disable_locks && crypt_metadata_locking(NULL, 0)) { + log_std(_("Cannot disable metadata locking.")); + tools_cleanup(); + poptFreeContext(popt_context); + exit(EXIT_FAILURE); + } + + if (opt_disable_keyring) + (void) crypt_volume_key_keyring(NULL, 0); + + if (opt_hotzone_size_str && + (tools_string_to_size(NULL, opt_hotzone_size_str, &opt_hotzone_size) || !opt_hotzone_size)) + usage(popt_context, EXIT_FAILURE, _("Invalid max reencryption hotzone size specification."), + poptGetInvocationName(popt_context)); + + if (!opt_hotzone_size && opt_resilience_mode && !strcmp(opt_resilience_mode, "none")) + opt_hotzone_size = 50 * 1024 * 1024; + + if (opt_reduce_size_str && + tools_string_to_size(NULL, opt_reduce_size_str, &opt_reduce_size)) + usage(popt_context, EXIT_FAILURE, _("Invalid device size specification."), + poptGetInvocationName(popt_context)); + if (opt_reduce_size > 1024 * 1024 * 1024) + usage(popt_context, EXIT_FAILURE, _("Maximum device reduce size is 1 GiB."), + poptGetInvocationName(popt_context)); + if (opt_reduce_size % SECTOR_SIZE) + usage(popt_context, EXIT_FAILURE, _("Reduce size must be multiple of 512 bytes sector."), + poptGetInvocationName(popt_context)); + + if (opt_device_size_str && + tools_string_to_size(NULL, opt_device_size_str, &opt_device_size)) + usage(popt_context, EXIT_FAILURE, _("Invalid data size specification."), + poptGetInvocationName(popt_context)); + + opt_data_shift = -(int64_t)opt_reduce_size; + if (opt_data_shift > 0) + usage(popt_context, EXIT_FAILURE, _("Reduce size overflow."), + poptGetInvocationName(popt_context)); + + if (opt_decrypt && !opt_header_device) + usage(popt_context, EXIT_FAILURE, _("LUKS2 decryption requires option --header."), + poptGetInvocationName(popt_context)); + + if (opt_device_size % SECTOR_SIZE) + usage(popt_context, EXIT_FAILURE, _("Device size must be multiple of 512 bytes sector."), + poptGetInvocationName(popt_context)); + + if (opt_data_shift && opt_device_size) + usage(popt_context, EXIT_FAILURE, _("Options --reduce-device-size and --data-size cannot be combined."), + poptGetInvocationName(popt_context)); + + if (opt_device_size && opt_size) + usage(popt_context, EXIT_FAILURE, _("Options --device-size and --size cannot be combined."), + poptGetInvocationName(popt_context)); + + if ((opt_keyslot_cipher && !opt_keyslot_key_size) || (!opt_keyslot_cipher && opt_keyslot_key_size)) + usage(popt_context, EXIT_FAILURE, _("Options --keyslot-cipher and --keyslot-key-size must be used together."), + poptGetInvocationName(popt_context)); + + r = run_action(action); + tools_cleanup(); + poptFreeContext(popt_context); + return r; +} |