X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=src%2Fcryptsetup.c;h=252f03100ceebd3d947a51f2e9205b15bf8f81f3;hb=ab080ab5449640d964ef67e51547e08757a7e9d7;hp=0cc7f0772015894411337b8d283cfd6ccb490e99;hpb=911ffe81f04e3da033a429061e17b54fa9214503;p=platform%2Fupstream%2Fcryptsetup.git diff --git a/src/cryptsetup.c b/src/cryptsetup.c index 0cc7f07..252f031 100644 --- a/src/cryptsetup.c +++ b/src/cryptsetup.c @@ -4,10 +4,12 @@ * Copyright (C) 2004, Christophe Saout * Copyright (C) 2004-2007, Clemens Fruhwirth * Copyright (C) 2009-2012, Red Hat, Inc. All rights reserved. + * Copyright (C) 2009-2012, Milan Broz * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. + * 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 @@ -33,6 +35,7 @@ static const char *opt_master_key_file = NULL; static const char *opt_header_backup_file = NULL; static const char *opt_uuid = NULL; static const char *opt_header_device = NULL; +static const char *opt_type = "luks"; static int opt_key_size = 0; static long opt_keyfile_size = 0; static long opt_new_keyfile_size = 0; @@ -44,7 +47,7 @@ static uint64_t opt_offset = 0; static uint64_t opt_skip = 0; static int opt_skip_valid = 0; static int opt_readonly = 0; -static int opt_iteration_time = 1000; +static int opt_iteration_time = DEFAULT_LUKS1_ITER_TIME; static int opt_version_mode = 0; static int opt_timeout = 0; static int opt_tries = 3; @@ -55,69 +58,13 @@ static int opt_dump_master_key = 0; static int opt_shared = 0; static int opt_allow_discards = 0; static int opt_test_passphrase = 0; -static int opt_hidden = 0; +static int opt_tcrypt_hidden = 0; +static int opt_tcrypt_system = 0; static const char **action_argv; static int action_argc; static const char *null_action_argv[] = {NULL, NULL}; -static int action_create(int arg); -static int action_remove(int arg); -static int action_resize(int arg); -static int action_status(int arg); -static int action_benchmark(int arg); -static int action_luksFormat(int arg); -static int action_luksOpen(int arg); -static int action_luksAddKey(int arg); -static int action_luksKillSlot(int arg); -static int action_luksRemoveKey(int arg); -static int action_luksChangeKey(int arg); -static int action_isLuks(int arg); -static int action_luksUUID(int arg); -static int action_luksDump(int arg); -static int action_luksSuspend(int arg); -static int action_luksResume(int arg); -static int action_luksBackup(int arg); -static int action_luksRestore(int arg); -static int action_loopaesOpen(int arg); -static int action_luksRepair(int arg); -static int action_tcryptOpen(int arg); - -static struct action_type { - const char *type; - int (*handler)(int); - int arg; - int required_action_argc; - int required_memlock; - const char *arg_desc; - const char *desc; -} action_types[] = { - { "create", action_create, 0, 2, 1, N_(" "),N_("create device") }, - { "remove", action_remove, 0, 1, 1, N_(""), N_("remove device") }, - { "resize", action_resize, 0, 1, 1, N_(""), N_("resize active device") }, - { "status", action_status, 0, 1, 0, N_(""), N_("show device status") }, - { "benchmark", action_benchmark, 0, 0, 0, N_(""), N_("benchmark cipher") }, - { "repair", action_luksRepair, 0, 1, 1, N_(""), N_("try to repair on-disk metadata") }, - { "luksFormat", action_luksFormat, 0, 1, 1, N_(" []"), N_("formats a LUKS device") }, - { "luksOpen", action_luksOpen, 0, 2, 1, N_(" "), N_("open LUKS device as mapping ") }, - { "luksAddKey", action_luksAddKey, 0, 1, 1, N_(" []"), N_("add key to LUKS device") }, - { "luksRemoveKey",action_luksRemoveKey, 0, 1, 1, N_(" []"), N_("removes supplied key or key file from LUKS device") }, - { "luksChangeKey",action_luksChangeKey, 0, 1, 1, N_(" []"), N_("changes supplied key or key file of LUKS device") }, - { "luksKillSlot", action_luksKillSlot, 0, 2, 1, N_(" "), N_("wipes key with number from LUKS device") }, - { "luksUUID", action_luksUUID, 0, 1, 0, N_(""), N_("print UUID of LUKS device") }, - { "isLuks", action_isLuks, 0, 1, 0, N_(""), N_("tests for LUKS partition header") }, - { "luksClose", action_remove, 0, 1, 1, N_(""), N_("remove LUKS mapping") }, - { "luksDump", action_luksDump, 0, 1, 1, N_(""), N_("dump LUKS partition information") }, - { "luksSuspend",action_luksSuspend, 0, 1, 1, N_(""), N_("Suspend LUKS device and wipe key (all IOs are frozen).") }, - { "luksResume", action_luksResume, 0, 1, 1, N_(""), N_("Resume suspended LUKS device.") }, - { "luksHeaderBackup",action_luksBackup, 0, 1, 1, N_(""), N_("Backup LUKS device header and keyslots") }, - { "luksHeaderRestore",action_luksRestore,0,1, 1, N_(""), N_("Restore LUKS device header and keyslots") }, - { "loopaesOpen",action_loopaesOpen, 0, 2, 1, N_(" "), N_("open loop-AES device as mapping ") }, - { "loopaesClose",action_remove, 0, 1, 1, N_(""), N_("remove loop-AES mapping") }, - { "tcryptOpen", action_tcryptOpen, 0, 2, 1, N_(" "), N_("open TCRYPT device as mapping ") }, - { NULL, NULL, 0, 0, 0, NULL, NULL } -}; - static int _verify_passphrase(int def) { /* Batch mode switch off verify - if not overrided by -y */ @@ -136,7 +83,7 @@ static int _verify_passphrase(int def) return def; } -static int action_create(int arg __attribute__((unused))) +static int action_open_plain(void) { struct crypt_device *cd = NULL; char cipher[MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN]; @@ -160,17 +107,17 @@ static int action_create(int arg __attribute__((unused))) params.hash = NULL; if ((opt_keyfile_offset || opt_keyfile_size) && opt_key_file) - log_std(("Ignoring keyfile offset and size options, keyfile read " + log_std(_("Ignoring keyfile offset and size options, keyfile read " "size is always the same as encryption key size.\n")); r = crypt_parse_name_and_mode(opt_cipher ?: DEFAULT_CIPHER(PLAIN), cipher, NULL, cipher_mode); if (r < 0) { - log_err("No known cipher specification pattern detected.\n"); + log_err(_("No known cipher specification pattern detected.\n")); goto out; } - if ((r = crypt_init(&cd, action_argv[1]))) + if ((r = crypt_init(&cd, action_argv[0]))) goto out; crypt_set_timeout(cd, opt_timeout); @@ -181,6 +128,7 @@ static int action_create(int arg __attribute__((unused))) NULL, NULL, key_size, ¶ms); + check_signal(&r); if (r < 0) goto out; @@ -195,21 +143,21 @@ static int action_create(int arg __attribute__((unused))) if (opt_key_file) /* With hashing, read the whole keyfile */ - r = crypt_activate_by_keyfile_offset(cd, action_argv[0], + r = crypt_activate_by_keyfile_offset(cd, action_argv[1], CRYPT_ANY_SLOT, opt_key_file, params.hash ? 0 : key_size, 0, activate_flags); else { - r = crypt_get_key(_("Enter passphrase: "), + r = tools_get_key(_("Enter passphrase: "), &password, &passwordLen, opt_keyfile_offset, opt_keyfile_size, NULL, opt_timeout, - _verify_passphrase(0), + _verify_passphrase(0), 0, cd); if (r < 0) goto out; - r = crypt_activate_by_passphrase(cd, action_argv[0], + r = crypt_activate_by_passphrase(cd, action_argv[1], CRYPT_ANY_SLOT, password, passwordLen, activate_flags); } out: @@ -219,7 +167,7 @@ out: return r; } -static int action_loopaesOpen(int arg __attribute__((unused))) +static int action_open_loopaes(void) { struct crypt_device *cd = NULL; struct crypt_params_loopaes params = { @@ -247,6 +195,7 @@ static int action_loopaesOpen(int arg __attribute__((unused))) 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; @@ -259,7 +208,7 @@ out: return r; } -static int action_tcryptOpen(int arg __attribute__((unused))) +static int action_open_tcrypt(void) { struct crypt_device *cd = NULL; struct crypt_params_tcrypt params = { @@ -277,17 +226,21 @@ static int action_tcryptOpen(int arg __attribute__((unused))) goto out; /* TCRYPT header is encrypted, get passphrase now */ - r = crypt_get_key(_("Enter passphrase: "), + r = tools_get_key(_("Enter passphrase: "), CONST_CAST(char**)¶ms.passphrase, ¶ms.passphrase_size, 0, 0, NULL, opt_timeout, - _verify_passphrase(0), cd); + _verify_passphrase(0), 0, cd); if (r < 0) goto out; - if (opt_hidden) + if (opt_tcrypt_hidden) params.flags |= CRYPT_TCRYPT_HIDDEN_HEADER; + if (opt_tcrypt_system) + params.flags |= CRYPT_TCRYPT_SYSTEM_HEADER; + r = crypt_load(cd, CRYPT_TCRYPT, ¶ms); + check_signal(&r); if (r < 0) goto out; @@ -297,12 +250,100 @@ static int action_tcryptOpen(int arg __attribute__((unused))) if (activated_name) r = crypt_activate_by_volume_key(cd, activated_name, NULL, 0, flags); out: + if (r == -EPERM) + log_err(_("No device header detected with this passphrase.\n")); + crypt_free(cd); + crypt_safe_free(CONST_CAST(char*)params.passphrase); + return r; +} + +static int tcryptDump_with_volume_key(struct crypt_device *cd) +{ + char *vk = NULL; + size_t vk_size; + unsigned i; + int r; + + crypt_set_confirm_callback(cd, yesDialog, NULL); + if (!yesDialog( + _("Header dump with volume key is sensitive information\n" + "which allows access to encrypted partition without passphrase.\n" + "This dump should be always stored encrypted on safe place."), + NULL)) + return -EPERM; + + vk_size = crypt_get_volume_key_size(cd); + vk = crypt_safe_alloc(vk_size); + if (!vk) + return -ENOMEM; + + r = crypt_volume_key_get(cd, CRYPT_ANY_SLOT, vk, &vk_size, NULL, 0); + if (r < 0) + goto out; + + log_std("TCRYPT header information for %s\n", crypt_get_device_name(cd)); + log_std("Cipher chain: \t%s\n", crypt_get_cipher(cd)); + log_std("Cipher mode: \t%s\n", crypt_get_cipher_mode(cd)); + log_std("Payload offset:\t%d\n", (int)crypt_get_data_offset(cd)); + log_std("MK bits: \t%d\n", (int)vk_size * 8); + log_std("MK dump:\t"); + + for(i = 0; i < vk_size; i++) { + if (i && !(i % 16)) + log_std("\n\t\t"); + log_std("%02hhx ", (char)vk[i]); + } + log_std("\n"); +out: + crypt_safe_free(vk); + return r; +} + +static int action_tcryptDump(void) +{ + struct crypt_device *cd = NULL; + struct crypt_params_tcrypt params = { + .keyfiles = opt_keyfiles, + .keyfiles_count = opt_keyfiles_count, + .flags = CRYPT_TCRYPT_LEGACY_MODES, + }; + int r; + + if ((r = crypt_init(&cd, action_argv[0]))) + goto out; + + /* TCRYPT header is encrypted, get passphrase now */ + r = tools_get_key(_("Enter passphrase: "), + CONST_CAST(char**)¶ms.passphrase, + ¶ms.passphrase_size, 0, 0, NULL, opt_timeout, + _verify_passphrase(0), 0, cd); + if (r < 0) + goto out; + + if (opt_tcrypt_hidden) + params.flags |= CRYPT_TCRYPT_HIDDEN_HEADER; + + if (opt_tcrypt_system) + params.flags |= CRYPT_TCRYPT_SYSTEM_HEADER; + + r = crypt_load(cd, CRYPT_TCRYPT, ¶ms); + check_signal(&r); + if (r < 0) + goto out; + + if (opt_dump_master_key) + r = tcryptDump_with_volume_key(cd); + else + r = crypt_dump(cd); +out: + if (r == -EPERM) + log_err(_("No device header detected with this passphrase.\n")); crypt_free(cd); crypt_safe_free(CONST_CAST(char*)params.passphrase); return r; } -static int action_remove(int arg __attribute__((unused))) +static int action_close(void) { struct crypt_device *cd = NULL; int r; @@ -315,7 +356,7 @@ static int action_remove(int arg __attribute__((unused))) return r; } -static int action_resize(int arg __attribute__((unused))) +static int action_resize(void) { struct crypt_device *cd = NULL; int r; @@ -328,18 +369,17 @@ static int action_resize(int arg __attribute__((unused))) return r; } -static int action_status(int arg __attribute__((unused))) +static int action_status(void) { crypt_status_info ci; struct crypt_active_device cad; struct crypt_device *cd = NULL; - struct stat st; char *backing_file; const char *device; int path = 0, r = 0; /* perhaps a path, not a dm device name */ - if (strchr(action_argv[0], '/') && !stat(action_argv[0], &st)) + if (strchr(action_argv[0], '/')) path = 1; ci = crypt_status(NULL, action_argv[0]); @@ -398,11 +438,26 @@ out: return r; } -static int action_benchmark(int arg __attribute__((unused))) +static int action_benchmark_kdf(const char *hash) +{ + uint64_t kdf_iters; + int r; + + r = crypt_benchmark_kdf(NULL, "pbkdf2", hash, "foo", 3, "bar", 3, + &kdf_iters); + if (r < 0) + log_std("PBKDF2-%-9s N/A\n", hash); + else + log_std("PBKDF2-%-9s %7" PRIu64 " iterations per second\n", + hash, kdf_iters); + return r; +} + +static int action_benchmark(void) { static struct { - char *cipher; - char *mode; + const char *cipher; + const char *mode; size_t key_size; size_t iv_size; } bciphers[] = { @@ -420,17 +475,21 @@ static int action_benchmark(int arg __attribute__((unused))) { "twofish", "xts", 64, 16 }, { NULL, NULL, 0, 0 } }; - char *header = "# Tests are approximate using memory only (no storage IO).\n" - "# Algorithm | Key | Encryption | Decryption\n"; + static char *bkdfs[] = { + "sha1", "sha256", "sha512", "ripemd160", "whirlpool", NULL + }; char cipher[MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN]; double enc_mbr = 0, dec_mbr = 0; int key_size = (opt_key_size ?: DEFAULT_PLAIN_KEYBITS); - int iv_size = 16; + int iv_size = 16, skipped = 0; int buffer_size = 1024 * 1024; char *c; int i, r; - if (opt_cipher) { + log_std(_("# Tests are approximate using memory only (no storage IO).\n")); + if (opt_hash) { + r = action_benchmark_kdf(opt_hash); + } else if (opt_cipher) { r = crypt_parse_name_and_mode(opt_cipher, cipher, NULL, cipher_mode); if (r < 0) { log_err(_("No known cipher specification pattern detected.\n")); @@ -440,37 +499,58 @@ static int action_benchmark(int arg __attribute__((unused))) *c = '\0'; /* FIXME: not really clever :) */ - if (strstr(cipher, "des")) + if (strstr(cipher, "des") || + strstr(cipher, "blowfish") || + strstr(cipher, "cast5")) iv_size = 8; r = crypt_benchmark(NULL, cipher, cipher_mode, key_size / 8, iv_size, buffer_size, &enc_mbr, &dec_mbr); if (!r) { - log_std("%s", header); - strncat(cipher, "-", MAX_CIPHER_LEN); - strncat(cipher, cipher_mode, MAX_CIPHER_LEN); - log_std("%11s %4db %5.1f MiB/s %5.1f MiB/s\n", - cipher, key_size, enc_mbr, dec_mbr); - } else - log_err(_("Cannot benchmark %s.\n"), cipher); + log_std(N_("# Algorithm | Key | Encryption | Decryption\n")); + log_std("%8s-%s %4db %5.1f MiB/s %5.1f MiB/s\n", + cipher, cipher_mode, key_size, enc_mbr, dec_mbr); + } else if (r == -ENOENT) + log_err(_("Cipher %s is not available.\n"), opt_cipher); } else { - log_std("%s", header); + for (i = 0; bkdfs[i]; i++) { + r = action_benchmark_kdf(bkdfs[i]); + check_signal(&r); + if (r == -EINTR) + break; + } for (i = 0; bciphers[i].cipher; i++) { r = crypt_benchmark(NULL, bciphers[i].cipher, bciphers[i].mode, bciphers[i].key_size, bciphers[i].iv_size, buffer_size, &enc_mbr, &dec_mbr); + check_signal(&r); + if (r == -ENOTSUP || r == -EINTR) + break; + if (r == -ENOENT) + skipped++; + if (i == 0) + log_std(N_("# Algorithm | Key | Encryption | Decryption\n")); + snprintf(cipher, MAX_CIPHER_LEN, "%s-%s", bciphers[i].cipher, bciphers[i].mode); if (!r) - log_std("%11s %4db %5.1f MiB/s %5.1f MiB/s\n", + log_std("%12s %4db %5.1f MiB/s %5.1f MiB/s\n", cipher, bciphers[i].key_size*8, enc_mbr, dec_mbr); else - log_std("%11s %4db %12s %12s\n", cipher, + log_std("%12s %4db %12s %12s\n", cipher, bciphers[i].key_size*8, _("N/A"), _("N/A")); } + if (skipped && skipped == i) + r = -ENOTSUP; } + if (r == -ENOTSUP) { + log_err(_("Required kernel crypto interface not available.\n")); +#ifdef ENABLE_AF_ALG + log_err( _("Ensure you have algif_skcipher kernel module loaded.\n")); +#endif + } return r; } @@ -484,11 +564,11 @@ static int _read_mk(const char *file, char **key, int keysize) fd = open(file, O_RDONLY); if (fd == -1) { - log_err("Cannot read keyfile %s.\n", file); + log_err(_("Cannot read keyfile %s.\n"), file); goto fail; } if ((read(fd, *key, keysize) != keysize)) { - log_err("Cannot read %d bytes from keyfile %s.\n", keysize, file); + log_err(_("Cannot read %d bytes from keyfile %s.\n"), keysize, file); close(fd); goto fail; } @@ -500,7 +580,7 @@ fail: return -EINVAL; } -static int action_luksRepair(int arg __attribute__((unused))) +static int action_luksRepair(void) { struct crypt_device *cd = NULL; int r; @@ -513,7 +593,7 @@ static int action_luksRepair(int arg __attribute__((unused))) r = crypt_load(cd, CRYPT_LUKS1, NULL); crypt_set_log_callback(cd, tool_log, NULL); if (r == 0) { - log_verbose( _("No known problems detected for LUKS header.\n")); + log_verbose(_("No known problems detected for LUKS header.\n")); goto out; } @@ -526,7 +606,7 @@ out: return r; } -static int action_luksFormat(int arg __attribute__((unused))) +static int action_luksFormat(void) { int r = -EINVAL, keysize; const char *header_device; @@ -577,9 +657,9 @@ static int action_luksFormat(int arg __attribute__((unused))) else if (opt_urandom) crypt_set_rng_type(cd, CRYPT_RNG_URANDOM); - r = crypt_get_key(_("Enter LUKS passphrase: "), &password, &passwordLen, + r = tools_get_key(_("Enter LUKS passphrase: "), &password, &passwordLen, opt_keyfile_offset, opt_keyfile_size, opt_key_file, - opt_timeout, _verify_passphrase(1), cd); + opt_timeout, _verify_passphrase(1), 1, cd); if (r < 0) goto out; @@ -591,6 +671,7 @@ static int action_luksFormat(int arg __attribute__((unused))) r = crypt_format(cd, CRYPT_LUKS1, cipher, cipher_mode, opt_uuid, key, keysize, ¶ms); + check_signal(&r); if (r < 0) goto out; @@ -605,7 +686,7 @@ out: return r; } -static int action_luksOpen(int arg __attribute__((unused))) +static int action_open_luks(void) { struct crypt_device *cd = NULL; const char *data_device, *header_device, *activated_name; @@ -687,9 +768,9 @@ static int verify_keyslot(struct crypt_device *cd, int key_slot, if (ki == CRYPT_SLOT_ACTIVE_LAST && msg_last && !yesDialog(msg_last, NULL)) return -EPERM; - r = crypt_get_key(msg_pass, &password, &passwordLen, + r = tools_get_key(msg_pass, &password, &passwordLen, keyfile_offset, keyfile_size, key_file, opt_timeout, - _verify_passphrase(0), cd); + _verify_passphrase(0), 0, cd); if(r < 0) goto out; @@ -718,7 +799,7 @@ out: return r; } -static int action_luksKillSlot(int arg __attribute__((unused))) +static int action_luksKillSlot(void) { struct crypt_device *cd = NULL; int r; @@ -759,7 +840,7 @@ out: return r; } -static int action_luksRemoveKey(int arg __attribute__((unused))) +static int action_luksRemoveKey(void) { struct crypt_device *cd = NULL; char *password = NULL; @@ -775,17 +856,18 @@ static int action_luksRemoveKey(int arg __attribute__((unused))) if ((r = crypt_load(cd, CRYPT_LUKS1, NULL))) goto out; - r = crypt_get_key(_("Enter LUKS passphrase to be deleted: "), + r = tools_get_key(_("Enter LUKS passphrase to be deleted: "), &password, &passwordLen, opt_keyfile_offset, opt_keyfile_size, opt_key_file, opt_timeout, - _verify_passphrase(0), + _verify_passphrase(0), 0, cd); if(r < 0) goto out; r = crypt_activate_by_passphrase(cd, NULL, CRYPT_ANY_SLOT, password, passwordLen, 0); + check_signal(&r); if (r < 0) goto out; @@ -807,11 +889,13 @@ out: return r; } -static int action_luksAddKey(int arg __attribute__((unused))) +static int action_luksAddKey(void) { int r = -EINVAL, keysize = 0; char *key = NULL; const char *opt_new_key_file = (action_argc > 1 ? action_argv[1] : NULL); + char *password = NULL, *password_new = NULL; + size_t password_size = 0, password_new_size = 0; struct crypt_device *cd = NULL; if ((r = crypt_init(&cd, uuid_or_device(action_argv[0])))) @@ -841,33 +925,45 @@ static int action_luksAddKey(int arg __attribute__((unused))) opt_key_file, opt_keyfile_size, opt_keyfile_offset, opt_new_key_file, opt_new_keyfile_size, opt_new_keyfile_offset); } else { + r = tools_get_key(_("Enter any passphrase: "), + &password, &password_size, 0, 0, NULL, + opt_timeout, _verify_passphrase(0), 0, cd); + + if (r < 0) + goto out; + + /* Check password before asking for new one */ + r = crypt_activate_by_passphrase(cd, NULL, CRYPT_ANY_SLOT, + password, password_size, 0); + check_signal(&r); + if (r < 0) + goto out; + + r = tools_get_key(_("Enter new passphrase for key slot: "), + &password_new, &password_new_size, 0, 0, NULL, + opt_timeout, _verify_passphrase(0), 1, cd); + if (r < 0) + goto out; + r = crypt_keyslot_add_by_passphrase(cd, opt_key_slot, - NULL, 0, NULL, 0); + password, password_size, + password_new, password_new_size); } out: - crypt_free(cd); + crypt_safe_free(password); + crypt_safe_free(password_new); crypt_safe_free(key); + crypt_free(cd); return r; } -static int _slots_full(struct crypt_device *cd) -{ - int i; - - for (i = 0; i < crypt_keyslot_max(crypt_get_type(cd)); i++) - if (crypt_keyslot_status(cd, i) == CRYPT_SLOT_INACTIVE) - return 0; - return 1; -} - -static int action_luksChangeKey(int arg __attribute__((unused))) +static int action_luksChangeKey(void) { const char *opt_new_key_file = (action_argc > 1 ? action_argv[1] : NULL); struct crypt_device *cd = NULL; - char *vk = NULL, *password = NULL; - size_t passwordLen = 0; - size_t vk_size; - int new_key_slot, old_key_slot, r; + char *password = NULL, *password_new = NULL; + size_t password_size = 0, password_new_size = 0; + int r; if ((r = crypt_init(&cd, uuid_or_device(action_argv[0])))) goto out; @@ -878,77 +974,38 @@ static int action_luksChangeKey(int arg __attribute__((unused))) if (opt_iteration_time) crypt_set_iteration_time(cd, opt_iteration_time); - r = crypt_get_key(_("Enter LUKS passphrase to be changed: "), - &password, &passwordLen, + r = tools_get_key(_("Enter LUKS passphrase to be changed: "), + &password, &password_size, opt_keyfile_offset, opt_keyfile_size, opt_key_file, - opt_timeout, _verify_passphrase(0), cd); + opt_timeout, _verify_passphrase(0), 0, cd); if (r < 0) goto out; - vk_size = crypt_get_volume_key_size(cd); - vk = crypt_safe_alloc(vk_size); - if (!vk) { - r = -ENOMEM; - goto out; - } - - r = crypt_volume_key_get(cd, opt_key_slot, vk, &vk_size, - password, passwordLen); - if (r < 0) { - if (opt_key_slot != CRYPT_ANY_SLOT) - log_err(_("No key available with this passphrase.\n")); + /* Check password before asking for new one */ + r = crypt_activate_by_passphrase(cd, NULL, opt_key_slot, + password, password_size, 0); + check_signal(&r); + if (r < 0) goto out; - } - if (opt_key_slot != CRYPT_ANY_SLOT || _slots_full(cd)) { - log_dbg("Key slot %d is going to be overwritten (%s).", - r, opt_key_slot != CRYPT_ANY_SLOT ? - "explicit key slot specified" : "no free key slot"); - old_key_slot = r; - new_key_slot = r; - } else { - log_dbg("Allocating new key slot."); - old_key_slot = r; - new_key_slot = CRYPT_ANY_SLOT; - } - - crypt_safe_free(password); - password = NULL; - passwordLen = 0; - r = crypt_get_key(_("Enter new LUKS passphrase: "), - &password, &passwordLen, + r = tools_get_key(_("Enter new LUKS passphrase: "), + &password_new, &password_new_size, opt_new_keyfile_offset, opt_new_keyfile_size, opt_new_key_file, - opt_timeout, _verify_passphrase(0), cd); + opt_timeout, _verify_passphrase(0), 1, cd); if (r < 0) goto out; - if (new_key_slot == old_key_slot) { - (void)crypt_keyslot_destroy(cd, old_key_slot); - r = crypt_keyslot_add_by_volume_key(cd, new_key_slot, - vk, vk_size, - password, passwordLen); - if (r >= 0) - log_verbose(_("Key slot %d changed.\n"), r); - } else { - r = crypt_keyslot_add_by_volume_key(cd, CRYPT_ANY_SLOT, - vk, vk_size, - password, passwordLen); - if (r >= 0) { - log_verbose(_("Replaced with key slot %d.\n"), r); - r = crypt_keyslot_destroy(cd, old_key_slot); - } - } - if (r < 0) - log_err(_("Failed to swap new key slot.\n")); + r = crypt_keyslot_change_by_passphrase(cd, opt_key_slot, opt_key_slot, + password, password_size, password_new, password_new_size); out: - crypt_safe_free(vk); crypt_safe_free(password); + crypt_safe_free(password_new); crypt_free(cd); return r; } -static int action_isLuks(int arg __attribute__((unused))) +static int action_isLuks(void) { struct crypt_device *cd = NULL; int r; @@ -963,7 +1020,7 @@ out: return r; } -static int action_luksUUID(int arg __attribute__((unused))) +static int action_luksUUID(void) { struct crypt_device *cd = NULL; const char *existing_uuid = NULL; @@ -999,7 +1056,7 @@ static int luksDump_with_volume_key(struct crypt_device *cd) crypt_set_confirm_callback(cd, yesDialog, NULL); if (!yesDialog( - _("LUKS header dump with volume key is sensitive information\n" + _("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)) @@ -1010,14 +1067,15 @@ static int luksDump_with_volume_key(struct crypt_device *cd) if (!vk) return -ENOMEM; - r = crypt_get_key(_("Enter LUKS passphrase: "), &password, &passwordLen, + r = tools_get_key(_("Enter LUKS passphrase: "), &password, &passwordLen, opt_keyfile_offset, opt_keyfile_size, opt_key_file, - opt_timeout, 0, cd); + opt_timeout, 0, 0, cd); if (r < 0) goto out; r = crypt_volume_key_get(cd, CRYPT_ANY_SLOT, vk, &vk_size, password, passwordLen); + check_signal(&r); if (r < 0) goto out; @@ -1042,7 +1100,7 @@ out: return r; } -static int action_luksDump(int arg __attribute__((unused))) +static int action_luksDump(void) { struct crypt_device *cd = NULL; int r; @@ -1062,7 +1120,7 @@ out: return r; } -static int action_luksSuspend(int arg __attribute__((unused))) +static int action_luksSuspend(void) { struct crypt_device *cd = NULL; int r; @@ -1075,7 +1133,7 @@ static int action_luksSuspend(int arg __attribute__((unused))) return r; } -static int action_luksResume(int arg __attribute__((unused))) +static int action_luksResume(void) { struct crypt_device *cd = NULL; int r; @@ -1098,7 +1156,7 @@ out: return r; } -static int action_luksBackup(int arg __attribute__((unused))) +static int action_luksBackup(void) { struct crypt_device *cd = NULL; int r; @@ -1119,7 +1177,7 @@ out: return r; } -static int action_luksRestore(int arg __attribute__((unused))) +static int action_luksRestore(void) { struct crypt_device *cd = NULL; int r = 0; @@ -1139,6 +1197,66 @@ out: return r; } +static int action_open(void) +{ + if (!opt_type) + return -EINVAL; + + if (!strcmp(opt_type, "luks") || !strcmp(opt_type, "luks1")) { + if (action_argc < 2 && !opt_test_passphrase) + goto args; + return action_open_luks(); + } else if (!strcmp(opt_type, "plain")) { + if (action_argc < 2) + goto args; + return action_open_plain(); + } else if (!strcmp(opt_type, "loopaes")) { + if (action_argc < 2) + goto args; + return action_open_loopaes(); + } else if (!strcmp(opt_type, "tcrypt")) { + if (action_argc < 2 && !opt_test_passphrase) + goto args; + return action_open_tcrypt(); + } + + log_err(_("Unrecognized metadata device type %s.\n"), opt_type); + return -EINVAL; +args: + log_err(_("Command requires device and mapped name as arguments.\n")); + return -EINVAL; +} + +static struct action_type { + const char *type; + int (*handler)(void); + int required_action_argc; + int required_memlock; + const char *arg_desc; + const char *desc; +} action_types[] = { + { "open", action_open, 1, 1, N_(" [--type ] []"),N_("open device as mapping ") }, + { "close", action_close, 1, 1, N_(""), N_("close device (remove mapping)") }, + { "resize", action_resize, 1, 1, N_(""), N_("resize active device") }, + { "status", action_status, 1, 0, N_(""), N_("show device status") }, + { "benchmark", action_benchmark, 0, 0, N_(""), N_("benchmark cipher") }, + { "repair", action_luksRepair, 1, 1, N_(""), N_("try to repair on-disk metadata") }, + { "luksFormat", action_luksFormat, 1, 1, N_(" []"), N_("formats a LUKS device") }, + { "luksAddKey", action_luksAddKey, 1, 1, N_(" []"), N_("add key to LUKS device") }, + { "luksRemoveKey",action_luksRemoveKey,1, 1, N_(" []"), N_("removes supplied key or key file from LUKS device") }, + { "luksChangeKey",action_luksChangeKey,1, 1, N_(" []"), N_("changes supplied key or key file of LUKS device") }, + { "luksKillSlot", action_luksKillSlot, 2, 1, N_(" "), N_("wipes key with number from LUKS device") }, + { "luksUUID", action_luksUUID, 1, 0, N_(""), N_("print UUID of LUKS device") }, + { "isLuks", action_isLuks, 1, 0, N_(""), N_("tests for LUKS partition header") }, + { "luksDump", action_luksDump, 1, 1, N_(""), N_("dump LUKS partition information") }, + { "tcryptDump", action_tcryptDump, 1, 1, N_(""), N_("dump TCRYPT device information") }, + { "luksSuspend", action_luksSuspend, 1, 1, N_(""), N_("Suspend LUKS device and wipe key (all IOs are frozen).") }, + { "luksResume", action_luksResume, 1, 1, N_(""), N_("Resume suspended LUKS device.") }, + { "luksHeaderBackup", action_luksBackup,1,1, N_(""), N_("Backup LUKS device header and keyslots") }, + { "luksHeaderRestore",action_luksRestore,1,1,N_(""), N_("Restore LUKS device header and keyslots") }, + {} +}; + static void help(poptContext popt_context, enum poptCallbackReason reason __attribute__((unused)), struct poptOption *key, @@ -1159,16 +1277,22 @@ static void help(poptContext popt_context, log_std("\t%s %s - %s\n", action->type, _(action->arg_desc), _(action->desc)); log_std(_("\n" + "You can also use old syntax aliases:\n" + "\topen: create (plainOpen), luksOpen, loopaesOpen, tcryptOpen\n" + "\tclose: remove (plainClose), luksClose, loopaesClose, tcryptClose\n")); + log_std(_("\n" " is the device to create under %s\n" " is the encrypted device\n" " is the LUKS key slot number to modify\n" " optional key file for the new key for luksAddKey action\n"), crypt_get_dir()); - log_std(_("\nDefault compiled-in keyfile parameters:\n" + log_std(_("\nDefault compiled-in key and passphrase parameters:\n" "\tMaximum keyfile size: %dkB, " - "Maximum interactive passphrase length %d (characters)\n"), - DEFAULT_KEYFILE_SIZE_MAXKB, DEFAULT_PASSPHRASE_SIZE_MAX); + "Maximum interactive passphrase length %d (characters)\n" + "Default PBKDF2 iteration time for LUKS: %d (ms)\n"), + DEFAULT_KEYFILE_SIZE_MAXKB, DEFAULT_PASSPHRASE_SIZE_MAX, + DEFAULT_LUKS1_ITER_TIME); log_std(_("\nDefault compiled-in device cipher parameters:\n" "\tloop-AES: %s, Key %d bits\n" @@ -1183,6 +1307,14 @@ static void help(poptContext popt_context, 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; @@ -1192,7 +1324,8 @@ static int run_action(struct action_type *action) if (action->required_memlock) crypt_memory_lock(NULL, 1); - r = action->handler(action->arg); + set_int_handler(0); + r = action->handler(); if (action->required_memlock) crypt_memory_lock(NULL, 0); @@ -1200,6 +1333,7 @@ static int run_action(struct action_type *action) /* Some functions returns keyslot # */ if (r > 0) r = 0; + check_signal(&r); show_status(r); return translate_errno(r); @@ -1248,7 +1382,10 @@ int main(int argc, const char **argv) { "allow-discards", '\0', POPT_ARG_NONE, &opt_allow_discards, 0, N_("Allow discards (aka TRIM) requests for device."), NULL }, { "header", '\0', POPT_ARG_STRING, &opt_header_device, 0, N_("Device or file with separated LUKS header."), NULL }, { "test-passphrase", '\0', POPT_ARG_NONE, &opt_test_passphrase, 0, N_("Do not activate device, just check passphrase."), NULL }, - { "hidden", '\0', POPT_ARG_NONE, &opt_hidden, 0, N_("Use hidden header (hiden TCRYPT device) ."), 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 }, + { "type", 'M', POPT_ARG_STRING, &opt_type, 0, N_("Type of device metadata: luks, plain, loopaes, tcrypt."), NULL }, + { "force-password", '\0', POPT_ARG_NONE, &opt_force_password, 0, N_("Disable password quality check (if enabled)."), NULL }, POPT_TABLEEND }; poptContext popt_context; @@ -1314,12 +1451,6 @@ int main(int argc, const char **argv) if (!(aname = poptGetArg(popt_context))) usage(popt_context, EXIT_FAILURE, _("Argument missing."), poptGetInvocationName(popt_context)); - 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)); action_argc = 0; action_argv = poptGetArgs(popt_context); @@ -1331,43 +1462,72 @@ int main(int argc, const char **argv) while(action_argv[action_argc] != NULL) action_argc++; - if(action_argc < action->required_action_argc) { - char buf[128]; - snprintf(buf, 128,_("%s: requires %s as arguments"), action->type, action->arg_desc); - usage(popt_context, EXIT_FAILURE, buf, - poptGetInvocationName(popt_context)); + /* Handle aliases */ + if (!strcmp(aname, "create")) { + /* create command had historically switched arguments */ + if (action_argv[0] && action_argv[1]) { + const char *tmp = action_argv[0]; + action_argv[0] = action_argv[1]; + action_argv[1] = tmp; + } + aname = "open"; + opt_type = "plain"; + } else if (!strcmp(aname, "plainOpen")) { + aname = "open"; + opt_type = "plain"; + } else if (!strcmp(aname, "luksOpen")) { + aname = "open"; + opt_type = "luks"; + } else if (!strcmp(aname, "loopaesOpen")) { + aname = "open"; + opt_type = "loopaes"; + } else if (!strcmp(aname, "tcryptOpen")) { + aname = "open"; + opt_type = "tcrypt"; + } else if (!strcmp(aname, "remove") || + !strcmp(aname, "plainClose") || + !strcmp(aname, "luksClose") || + !strcmp(aname, "loopaesClose") || + !strcmp(aname, "tcryptClose")) { + aname = "close"; } + for(action = action_types; action->type; action++) + if (strcmp(action->type, aname) == 0) + break; + + if (!action->type) + usage(popt_context, EXIT_FAILURE, _("Unknown action."), + poptGetInvocationName(popt_context)); + + if(action_argc < action->required_action_argc) + help_args(action, popt_context); + /* FIXME: rewrite this from scratch */ - if (opt_shared && strcmp(aname, "create")) + if (opt_shared && (strcmp(aname, "open") || strcmp(opt_type, "plain")) ) usage(popt_context, EXIT_FAILURE, - _("Option --shared is allowed only for create operation.\n"), + _("Option --shared is allowed only for open of plain device.\n"), poptGetInvocationName(popt_context)); - if (opt_allow_discards && - strcmp(aname, "luksOpen") && - strcmp(aname, "create") && - strcmp(aname, "loopaesOpen")) + if (opt_allow_discards && strcmp(aname, "open")) usage(popt_context, EXIT_FAILURE, - _("Option --allow-discards is allowed only for luksOpen, loopaesOpen and create operation.\n"), + _("Option --allow-discards is allowed only for open operation.\n"), poptGetInvocationName(popt_context)); if (opt_key_size && strcmp(aname, "luksFormat") && - strcmp(aname, "create") && - strcmp(aname, "loopaesOpen") && + strcmp(aname, "open") && strcmp(aname, "benchmark")) usage(popt_context, EXIT_FAILURE, - _("Option --key-size is allowed only for luksFormat, create, loopaesOpen and benchmark.\n" + _("Option --key-size is allowed only for luksFormat, open and benchmark.\n" "To limit read from keyfile use --keyfile-size=(bytes)."), poptGetInvocationName(popt_context)); - if (opt_test_passphrase && - strcmp(aname, "luksOpen") && - strcmp(aname, "tcryptOpen")) + if (opt_test_passphrase && (strcmp(aname, "open") || + (strcmp(opt_type, "luks") && strcmp(opt_type, "tcrypt")))) usage(popt_context, EXIT_FAILURE, - _("Option --test-passphrase is allowed only for luksOpen and tcryptOpen.\n"), + _("Option --test-passphrase is allowed only for open of LUKS and TCRYPT devices.\n"), poptGetInvocationName(popt_context)); if (opt_key_size % 8) @@ -1413,19 +1573,22 @@ int main(int argc, const char **argv) usage(popt_context, EXIT_FAILURE, _("Option --align-payload is allowed only for luksFormat."), poptGetInvocationName(popt_context)); - if (opt_skip && strcmp(aname, "create") && strcmp(aname, "loopaesOpen")) + if (opt_skip && (strcmp(aname, "open") || + (strcmp(opt_type, "plain") && strcmp(opt_type, "loopaes")))) usage(popt_context, EXIT_FAILURE, - _("Option --skip is supported only for create and loopaesOpen commands.\n"), + _("Option --skip is supported only for open of plain and loopaes devices.\n"), poptGetInvocationName(popt_context)); - if (opt_offset && strcmp(aname, "create") && strcmp(aname, "loopaesOpen")) + if (opt_offset && (strcmp(aname, "open") || + (strcmp(opt_type, "plain") && strcmp(opt_type, "loopaes")))) usage(popt_context, EXIT_FAILURE, - _("Option --offset is supported only for create and loopaesOpen commands.\n"), + _("Option --offset is supported only for open of plain and loopaes devices.\n"), poptGetInvocationName(popt_context)); - if (opt_hidden && strcmp(aname, "tcryptOpen")) + if ((opt_tcrypt_hidden || opt_tcrypt_system) && strcmp(aname, "tcryptDump") && + (strcmp(aname, "open") || strcmp(opt_type, "tcrypt"))) usage(popt_context, EXIT_FAILURE, - _("Option --hidden is supported only for tcryptOpen command.\n"), + _("Option --tcrypt-hidden or --tcrypt-system is supported only for TCRYPT device.\n"), poptGetInvocationName(popt_context)); if (opt_debug) {