Imported upstream version 1.6.7
[platform/upstream/cryptsetup.git] / src / cryptsetup.c
index 31896f2..8fc4d6c 100644 (file)
@@ -1,13 +1,15 @@
 /*
  * cryptsetup - setup cryptographic volumes for dm-crypt
  *
- * Copyright (C) 2004, Christophe Saout <christophe@saout.de>
+ * Copyright (C) 2004, Jana Saout <jana@saout.de>
  * Copyright (C) 2004-2007, Clemens Fruhwirth <clemens@endorphin.org>
- * Copyright (C) 2009-2012, Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2009-2015, Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2009-2015, 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;
@@ -54,71 +57,25 @@ 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_test_passphrase = 0;
-static int opt_hidden = 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 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 int action_tcryptDump(int arg);
+static const char *uuid_or_device_header(const char **data_device)
+{
+       if (data_device)
+               *data_device = opt_header_device ? action_argv[0] : NULL;
 
-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_("<name> <device>"),N_("create device") },
-       { "remove",     action_remove,          0, 1, 1, N_("<name>"), N_("remove device") },
-       { "resize",     action_resize,          0, 1, 1, N_("<name>"), N_("resize active device") },
-       { "status",     action_status,          0, 1, 0, N_("<name>"), N_("show device status") },
-       { "benchmark",  action_benchmark,       0, 0, 0, N_("<name>"), N_("benchmark cipher") },
-       { "repair",     action_luksRepair,      0, 1, 1, N_("<device>"), N_("try to repair on-disk metadata") },
-       { "luksFormat", action_luksFormat,      0, 1, 1, N_("<device> [<new key file>]"), N_("formats a LUKS device") },
-       { "luksOpen",   action_luksOpen,        0, 2, 1, N_("<device> <name> "), N_("open LUKS device as mapping <name>") },
-       { "luksAddKey", action_luksAddKey,      0, 1, 1, N_("<device> [<new key file>]"), N_("add key to LUKS device") },
-       { "luksRemoveKey",action_luksRemoveKey, 0, 1, 1, N_("<device> [<key file>]"), N_("removes supplied key or key file from LUKS device") },
-       { "luksChangeKey",action_luksChangeKey, 0, 1, 1, N_("<device> [<key file>]"), N_("changes supplied key or key file of LUKS device") },
-       { "luksKillSlot",  action_luksKillSlot, 0, 2, 1, N_("<device> <key slot>"), N_("wipes key with number <key slot> from LUKS device") },
-       { "luksUUID",   action_luksUUID,        0, 1, 0, N_("<device>"), N_("print UUID of LUKS device") },
-       { "isLuks",     action_isLuks,          0, 1, 0, N_("<device>"), N_("tests <device> for LUKS partition header") },
-       { "luksClose",  action_remove,          0, 1, 1, N_("<name>"), N_("remove LUKS mapping") },
-       { "luksDump",   action_luksDump,        0, 1, 1, N_("<device>"), N_("dump LUKS partition information") },
-       { "luksSuspend",action_luksSuspend,     0, 1, 1, N_("<device>"), N_("Suspend LUKS device and wipe key (all IOs are frozen).") },
-       { "luksResume", action_luksResume,      0, 1, 1, N_("<device>"), N_("Resume suspended LUKS device.") },
-       { "luksHeaderBackup",action_luksBackup, 0, 1, 1, N_("<device>"), N_("Backup LUKS device header and keyslots") },
-       { "luksHeaderRestore",action_luksRestore,0,1, 1, N_("<device>"), N_("Restore LUKS device header and keyslots") },
-       { "loopaesOpen",action_loopaesOpen,     0, 2, 1, N_("<device> <name> "), N_("open loop-AES device as mapping <name>") },
-       { "loopaesClose",action_remove,         0, 1, 1, N_("<name>"), N_("remove loop-AES mapping") },
-       { "tcryptOpen", action_tcryptOpen,      0, 2, 1, N_("<device> <name> "), N_("open TCRYPT device as mapping <name>") },
-       { "tcryptDump", action_tcryptDump,      0, 1, 1, N_("<device>"), N_("dump TCRYPT device information") },
-       { NULL, NULL, 0, 0, 0, NULL, NULL }
-};
+       return uuid_or_device(opt_header_device ?: action_argv[0]);
+}
 
 static int _verify_passphrase(int def)
 {
@@ -138,7 +95,22 @@ static int _verify_passphrase(int def)
        return def;
 }
 
-static int action_create(int arg __attribute__((unused)))
+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;
+}
+
+static int action_open_plain(void)
 {
        struct crypt_device *cd = NULL;
        char cipher[MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN];
@@ -152,27 +124,35 @@ static int action_create(int arg __attribute__((unused)))
        size_t passwordLen;
        size_t key_size = (opt_key_size ?: DEFAULT_PLAIN_KEYBITS) / 8;
        uint32_t activate_flags = 0;
+       int keyfile_limited = 0;
        int r;
 
-       if (params.hash && !strcmp(params.hash, "plain"))
-               params.hash = NULL;
-
-       /* FIXME: temporary hack */
-       if (opt_key_file && strcmp(opt_key_file, "-"))
-               params.hash = NULL;
-
-       if ((opt_keyfile_offset || opt_keyfile_size) && opt_key_file)
-               log_std(("Ignoring keyfile offset and size options, keyfile read "
-                        "size is always the same as encryption key size.\n"));
-
        r = crypt_parse_name_and_mode(opt_cipher ?: DEFAULT_CIPHER(PLAIN),
                                      cipher, NULL, cipher_mode);
        if (r < 0) {
-               log_err("No known cipher specification pattern detected.\n");
+               log_err(_("No known cipher specification pattern detected.\n"));
                goto out;
        }
 
-       if ((r = crypt_init(&cd, action_argv[1])))
+       if (opt_key_file && strcmp(opt_key_file, "-") != 0)
+               keyfile_limited = 1;
+
+       /* FIXME: temporary hack, no hashing for keyfiles in plain mode */
+       if (opt_key_file && keyfile_limited) {
+               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 && keyfile_limited && 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 ((r = crypt_init(&cd, action_argv[0])))
                goto out;
 
        crypt_set_timeout(cd, opt_timeout);
@@ -183,35 +163,36 @@ static int action_create(int arg __attribute__((unused)))
                         NULL, NULL,
                         key_size,
                         &params);
+       check_signal(&r);
        if (r < 0)
                goto out;
 
-       if (opt_readonly)
-               activate_flags |= CRYPT_ACTIVATE_READONLY;
-
        if (opt_shared)
                activate_flags |= CRYPT_ACTIVATE_SHARED;
 
-       if (opt_allow_discards)
-               activate_flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS;
+       _set_activation_flags(&activate_flags);
 
-       if (opt_key_file)
-               /* With hashing, read the whole keyfile */
-               r = crypt_activate_by_keyfile_offset(cd, action_argv[0],
+       if (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.
+                */
+               r = crypt_activate_by_keyfile_offset(cd, action_argv[1],
                        CRYPT_ANY_SLOT, opt_key_file,
-                       params.hash ? 0 : key_size, 0,
+                       params.hash ? opt_keyfile_size : key_size, opt_keyfile_offset,
                        activate_flags);
-       else {
-               r = crypt_get_key(_("Enter passphrase: "),
+       else {
+               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:
@@ -221,7 +202,7 @@ 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 = {
@@ -238,39 +219,81 @@ static int action_loopaesOpen(int arg __attribute__((unused)))
                return -EINVAL;
        }
 
-       if (opt_readonly)
-               activate_flags |= CRYPT_ACTIVATE_READONLY;
-
-       if (opt_allow_discards)
-               activate_flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS;
+       _set_activation_flags(&activate_flags);
 
        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, &params);
+       check_signal(&r);
        if (r < 0)
                goto out;
 
        r = crypt_activate_by_keyfile_offset(cd, action_argv[1], CRYPT_ANY_SLOT,
                                      opt_key_file, opt_keyfile_size,
-                                     opt_keyfile_size, activate_flags);
+                                     opt_keyfile_offset, activate_flags);
 out:
        crypt_free(cd);
 
        return r;
 }
 
-static int action_tcryptOpen(int arg __attribute__((unused)))
+static int tcrypt_load(struct crypt_device *cd, struct crypt_params_tcrypt *params)
+{
+       int r, tries = opt_tries, eperm = 0;
+
+       do {
+               /* TCRYPT header is encrypted, get passphrase now */
+               r = tools_get_key(_("Enter passphrase: "),
+                                 CONST_CAST(char**)&params->passphrase,
+                                 &params->passphrase_size, 0, 0, NULL, opt_timeout,
+                                _verify_passphrase(0), 0, cd);
+               if (r < 0)
+                       continue;
+
+               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.\n"));
+                       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 && (--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 = opt_keyfiles,
                .keyfiles_count = opt_keyfiles_count,
-               .flags = CRYPT_TCRYPT_LEGACY_MODES,
+               .flags = CRYPT_TCRYPT_LEGACY_MODES |
+                        (opt_veracrypt ? CRYPT_TCRYPT_VERA_MODES : 0),
        };
        const char *activated_name;
-       uint32_t flags = 0;
+       uint32_t activate_flags = 0;
        int r;
 
        activated_name = opt_test_passphrase ? NULL : action_argv[1];
@@ -278,68 +301,91 @@ static int action_tcryptOpen(int arg __attribute__((unused)))
        if ((r = crypt_init(&cd, action_argv[0])))
                goto out;
 
-       /* TCRYPT header is encrypted, get passphrase now */
-       r = crypt_get_key(_("Enter passphrase: "),
-                         CONST_CAST(char**)&params.passphrase,
-                         &params.passphrase_size, 0, 0, NULL, opt_timeout,
-                         _verify_passphrase(0), cd);
+       r = tcrypt_load(cd, &params);
        if (r < 0)
                goto out;
 
-       if (opt_hidden)
-               params.flags |= CRYPT_TCRYPT_HIDDEN_HEADER;
+       _set_activation_flags(&activate_flags);
 
-       r = crypt_load(cd, CRYPT_TCRYPT, &params);
+       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);
+       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;
 
-       if (opt_readonly)
-               flags |= CRYPT_ACTIVATE_READONLY;
+       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");
 
-       if (activated_name)
-               r = crypt_activate_by_volume_key(cd, activated_name, NULL, 0, flags);
+       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_free(cd);
-       crypt_safe_free(CONST_CAST(char*)params.passphrase);
+       crypt_safe_free(vk);
        return r;
 }
 
-static int action_tcryptDump(int arg __attribute__((unused)))
+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,
+               .flags = CRYPT_TCRYPT_LEGACY_MODES |
+                        (opt_veracrypt ? CRYPT_TCRYPT_VERA_MODES : 0),
        };
        int r;
 
        if ((r = crypt_init(&cd, action_argv[0])))
                goto out;
 
-       /* TCRYPT header is encrypted, get passphrase now */
-       r = crypt_get_key(_("Enter passphrase: "),
-                         CONST_CAST(char**)&params.passphrase,
-                         &params.passphrase_size, 0, 0, NULL, opt_timeout,
-                         _verify_passphrase(0), cd);
+       r = tcrypt_load(cd, &params);
        if (r < 0)
                goto out;
 
-       if (opt_hidden)
-               params.flags |= CRYPT_TCRYPT_HIDDEN_HEADER;
-
-       r = crypt_load(cd, CRYPT_TCRYPT, &params);
-       if (r < 0)
-               goto out;
-
-       r = crypt_dump(cd);
+       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_remove(int arg __attribute__((unused)))
+static int action_close(void)
 {
        struct crypt_device *cd = NULL;
        int r;
@@ -352,7 +398,7 @@ 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;
@@ -365,18 +411,17 @@ 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]);
@@ -401,10 +446,10 @@ static int action_status(int arg __attribute__((unused)))
                                ci == CRYPT_BUSY ? " and is in use" : "");
 
                r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device);
-               if (r < 0 || !crypt_get_type(cd))
+               if (r < 0)
                        goto out;
 
-               log_std("  type:    %s\n", crypt_get_type(cd));
+               log_std("  type:    %s\n", crypt_get_type(cd) ?: "n/a");
 
                r = crypt_get_active_device(cd, action_argv[0], &cad);
                if (r < 0)
@@ -425,8 +470,13 @@ static int action_status(int arg __attribute__((unused)))
                        log_std("  skipped: %" PRIu64 " sectors\n", cad.iv_offset);
                log_std("  mode:    %s\n", cad.flags & CRYPT_ACTIVATE_READONLY ?
                                           "readonly" : "read/write");
-               if (cad.flags & CRYPT_ACTIVATE_ALLOW_DISCARDS)
-                       log_std("  flags:   discards\n");
+               if (cad.flags & (CRYPT_ACTIVATE_ALLOW_DISCARDS|
+                                CRYPT_ACTIVATE_ALLOW_DISCARDS|
+                                CRYPT_ACTIVATE_SUBMIT_FROM_CRYPT_CPUS))
+                       log_std("  flags:   %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" : "");
        }
 out:
        crypt_free(cd);
@@ -435,11 +485,49 @@ 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 benchmark_cipher_loop(const char *cipher, const char *cipher_mode,
+                                size_t volume_key_size, size_t iv_size,
+                                double *encryption_mbs, double *decryption_mbs)
+{
+       int r, buffer_size = 1024 * 1024;
+
+       do {
+               r = crypt_benchmark(NULL, cipher, cipher_mode,
+                                   volume_key_size, iv_size, 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.\n"));
+                               r = -ENOENT;
+                       }
+               }
+       } while (r == -ERANGE);
+
+       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[] = {
@@ -457,17 +545,20 @@ 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 const 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 buffer_size = 1024 * 1024;
+       int iv_size = 16, skipped = 0;
        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"));
@@ -477,44 +568,61 @@ 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 (!strcmp(cipher_mode, "ecb"))
+                       iv_size = 0;
+
+               r = benchmark_cipher_loop(cipher, cipher_mode,
+                                         key_size / 8, iv_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 if (r == -ENOTSUP)
+                       log_std(N_("#  Algorithm | Key |  Encryption |  Decryption\n"));
+                       log_std("%8s-%s  %4db  %6.1f MiB/s  %6.1f MiB/s\n",
+                               cipher, cipher_mode, key_size, enc_mbr, dec_mbr);
+               } else if (r == -ENOENT)
                        log_err(_("Cipher %s is not available.\n"), opt_cipher);
        } else {
+               for (i = 0; bkdfs[i]; i++) {
+                       r = action_benchmark_kdf(bkdfs[i]);
+                       check_signal(&r);
+                       if (r == -EINTR)
+                               break;
+               }
                for (i = 0; bciphers[i].cipher; i++) {
-                       r = crypt_benchmark(NULL, bciphers[i].cipher, bciphers[i].mode,
+                       r = benchmark_cipher_loop(bciphers[i].cipher, bciphers[i].mode,
                                            bciphers[i].key_size, bciphers[i].iv_size,
-                                           buffer_size, &enc_mbr, &dec_mbr);
-                       if (r == -ENOENT)
+                                           &enc_mbr, &dec_mbr);
+                       check_signal(&r);
+                       if (r == -ENOTSUP || r == -EINTR)
                                break;
+                       if (r == -ENOENT)
+                               skipped++;
                        if (i == 0)
-                               log_std("%s", header);
+                               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  %4zub  %6.1f MiB/s  %6.1f 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  %4zub %13s %13s\n", cipher,
                                        bciphers[i].key_size*8, _("N/A"), _("N/A"));
                }
+               if (skipped && skipped == i)
+                       r = -ENOTSUP;
        }
 
-       if (r == -ENOENT)
-               log_err( _("Required kernel crypto interface is not available.\n"
-                          "Ensure you have af_skcipher kernel module loaded.\n"));
+       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;
 }
 
@@ -528,11 +636,11 @@ 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;
        }
@@ -544,7 +652,7 @@ fail:
        return -EINVAL;
 }
 
-static int action_luksRepair(int arg __attribute__((unused)))
+static int action_luksRepair(void)
 {
        struct crypt_device *cd = NULL;
        int r;
@@ -557,7 +665,7 @@ 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;
        }
 
@@ -570,7 +678,7 @@ out:
        return r;
 }
 
-static int action_luksFormat(int arg __attribute__((unused)))
+static int action_luksFormat(void)
 {
        int r = -EINVAL, keysize;
        const char *header_device;
@@ -621,9 +729,9 @@ 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 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;
 
@@ -635,6 +743,7 @@ static int action_luksFormat(int arg __attribute__((unused)))
 
        r = crypt_format(cd, CRYPT_LUKS1, cipher, cipher_mode,
                         opt_uuid, key, keysize, &params);
+       check_signal(&r);
        if (r < 0)
                goto out;
 
@@ -649,21 +758,15 @@ 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;
        char *key = NULL;
-       uint32_t flags = 0;
+       uint32_t activate_flags = 0;
        int r, keysize;
 
-       if (opt_header_device) {
-               header_device = uuid_or_device(opt_header_device);
-               data_device = action_argv[0];
-       } else {
-               header_device = uuid_or_device(action_argv[0]);
-               data_device = NULL;
-       }
+       header_device = uuid_or_device_header(&data_device);
 
        activated_name = opt_test_passphrase ? NULL : action_argv[1];
 
@@ -690,11 +793,7 @@ static int action_luksOpen(int arg __attribute__((unused)))
        if (opt_iteration_time)
                crypt_set_iteration_time(cd, opt_iteration_time);
 
-       if (opt_readonly)
-               flags |= CRYPT_ACTIVATE_READONLY;
-
-       if (opt_allow_discards)
-               flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS;
+       _set_activation_flags(&activate_flags);
 
        if (opt_master_key_file) {
                keysize = crypt_get_volume_key_size(cd);
@@ -702,15 +801,15 @@ static int action_luksOpen(int arg __attribute__((unused)))
                if (r < 0)
                        goto out;
                r = crypt_activate_by_volume_key(cd, activated_name,
-                                                key, keysize, flags);
+                                                key, keysize, activate_flags);
        } else if (opt_key_file) {
                crypt_set_password_retry(cd, 1);
                r = crypt_activate_by_keyfile_offset(cd, activated_name,
                        opt_key_slot, opt_key_file, opt_keyfile_size,
-                       opt_keyfile_offset, flags);
+                       opt_keyfile_offset, activate_flags);
        } else
                r = crypt_activate_by_passphrase(cd, activated_name,
-                       opt_key_slot, NULL, 0, flags);
+                       opt_key_slot, NULL, 0, activate_flags);
 out:
        crypt_safe_free(key);
        crypt_free(cd);
@@ -731,9 +830,9 @@ 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;
 
@@ -762,12 +861,12 @@ out:
        return r;
 }
 
-static int action_luksKillSlot(int arg __attribute__((unused)))
+static int action_luksKillSlot(void)
 {
        struct crypt_device *cd = NULL;
        int r;
 
-       if ((r = crypt_init(&cd, uuid_or_device(action_argv[0]))))
+       if ((r = crypt_init(&cd, uuid_or_device_header(NULL))))
                goto out;
 
        crypt_set_confirm_callback(cd, yesDialog, NULL);
@@ -791,7 +890,7 @@ static int action_luksKillSlot(int arg __attribute__((unused)))
        if (!opt_batch_mode) {
                r = verify_keyslot(cd, opt_key_slot,
                        _("This is the last keyslot. Device will become unusable after purging this key."),
-                       _("Enter any remaining LUKS passphrase: "),
+                       _("Enter any remaining passphrase: "),
                        opt_key_file, opt_keyfile_offset, opt_keyfile_size);
                if (r < 0)
                        goto out;
@@ -803,14 +902,14 @@ out:
        return r;
 }
 
-static int action_luksRemoveKey(int arg __attribute__((unused)))
+static int action_luksRemoveKey(void)
 {
        struct crypt_device *cd = NULL;
        char *password = NULL;
        size_t passwordLen;
        int r;
 
-       if ((r = crypt_init(&cd, uuid_or_device(action_argv[0]))))
+       if ((r = crypt_init(&cd, uuid_or_device_header(NULL))))
                goto out;
 
        crypt_set_confirm_callback(cd, yesDialog, NULL);
@@ -819,17 +918,18 @@ 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 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;
 
@@ -851,14 +951,16 @@ 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]))))
+       if ((r = crypt_init(&cd, uuid_or_device_header(NULL))))
                goto out;
 
        crypt_set_confirm_callback(cd, yesDialog, NULL);
@@ -877,43 +979,68 @@ static int action_luksAddKey(int arg __attribute__((unused)))
                r = _read_mk(opt_master_key_file, &key, keysize);
                if (r < 0)
                        goto out;
-               //FIXME: process keyfile arg
-               r = crypt_keyslot_add_by_volume_key(cd, opt_key_slot,
-                                                   key, keysize, NULL, 0);
+
+               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 || opt_new_key_file) {
                r = crypt_keyslot_add_by_keyfile_offset(cd, opt_key_slot,
                        opt_key_file, opt_keyfile_size, opt_keyfile_offset,
                        opt_new_key_file, opt_new_keyfile_size, opt_new_keyfile_offset);
        } else {
+               r = tools_get_key(_("Enter any existing 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(1), 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]))))
+       if ((r = crypt_init(&cd, uuid_or_device_header(NULL))))
                goto out;
 
        if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
@@ -922,82 +1049,49 @@ 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 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 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(1), 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;
 
-       if ((r = crypt_init(&cd, action_argv[0])))
+       /* 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.\n"));
+               return -ENODEV;
+       }
+
+       if ((r = crypt_init(&cd, uuid_or_device_header(NULL))))
                goto out;
 
        crypt_set_log_callback(cd, quiet_log, NULL);
@@ -1007,13 +1101,13 @@ 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;
        int r;
 
-       if ((r = crypt_init(&cd, action_argv[0])))
+       if ((r = crypt_init(&cd, uuid_or_device_header(NULL))))
                goto out;
 
        crypt_set_confirm_callback(cd, yesDialog, NULL);
@@ -1043,7 +1137,7 @@ 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))
@@ -1054,14 +1148,15 @@ 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 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;
 
@@ -1086,12 +1181,12 @@ out:
        return r;
 }
 
-static int action_luksDump(int arg __attribute__((unused)))
+static int action_luksDump(void)
 {
        struct crypt_device *cd = NULL;
        int r;
 
-       if ((r = crypt_init(&cd, uuid_or_device(action_argv[0]))))
+       if ((r = crypt_init(&cd, uuid_or_device_header(NULL))))
                goto out;
 
        if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
@@ -1106,12 +1201,12 @@ out:
        return r;
 }
 
-static int action_luksSuspend(int arg __attribute__((unused)))
+static int action_luksSuspend(void)
 {
        struct crypt_device *cd = NULL;
        int r;
 
-       r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device);
+       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]);
 
@@ -1119,12 +1214,12 @@ 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;
 
-       if ((r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device)))
+       if ((r = crypt_init_by_name_and_header(&cd, action_argv[0], uuid_or_device(opt_header_device))))
                goto out;
 
        crypt_set_timeout(cd, opt_timeout);
@@ -1142,7 +1237,7 @@ out:
        return r;
 }
 
-static int action_luksBackup(int arg __attribute__((unused)))
+static int action_luksBackup(void)
 {
        struct crypt_device *cd = NULL;
        int r;
@@ -1152,7 +1247,7 @@ static int action_luksBackup(int arg __attribute__((unused)))
                return -EINVAL;
        }
 
-       if ((r = crypt_init(&cd, uuid_or_device(action_argv[0]))))
+       if ((r = crypt_init(&cd, uuid_or_device_header(NULL))))
                goto out;
 
        crypt_set_confirm_callback(cd, yesDialog, NULL);
@@ -1163,7 +1258,7 @@ out:
        return r;
 }
 
-static int action_luksRestore(int arg __attribute__((unused)))
+static int action_luksRestore(void)
 {
        struct crypt_device *cd = NULL;
        int r = 0;
@@ -1173,7 +1268,7 @@ static int action_luksRestore(int arg __attribute__((unused)))
                return -EINVAL;
        }
 
-       if ((r = crypt_init(&cd, action_argv[0])))
+       if ((r = crypt_init(&cd, uuid_or_device_header(NULL))))
                goto out;
 
        crypt_set_confirm_callback(cd, yesDialog, NULL);
@@ -1183,6 +1278,108 @@ 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 int action_luksErase(void)
+{
+       struct crypt_device *cd = NULL;
+       crypt_keyslot_info ki;
+       char *msg = NULL;
+       int i, 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, CRYPT_LUKS1, 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, NULL)) {
+               r = -EPERM;
+               goto out;
+       }
+
+       for (i = 0; i < crypt_keyslot_max(CRYPT_LUKS1); 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;
+               }
+       }
+out:
+       free(msg);
+       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 mapping <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_("<name>"), N_("benchmark cipher") },
+       { "repair",       action_luksRepair,   1, 1, N_("<device>"), N_("try to repair on-disk metadata") },
+       { "erase",        action_luksErase ,   1, 1, N_("<device>"), N_("erase all keyslots (remove encryption key)") },
+       { "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") },
+       { "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") },
+       { "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") },
+       {}
+};
+
 static void help(poptContext popt_context,
                 enum poptCallbackReason reason __attribute__((unused)),
                 struct poptOption *key,
@@ -1203,6 +1400,10 @@ 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 <action> syntax aliases:\n"
+                         "\topen: create (plainOpen), luksOpen, loopaesOpen, tcryptOpen\n"
+                         "\tclose: remove (plainClose), luksClose, loopaesClose, tcryptClose\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"
@@ -1229,6 +1430,14 @@ 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;
@@ -1238,7 +1447,8 @@ 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);
@@ -1246,6 +1456,7 @@ 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);
@@ -1294,7 +1505,14 @@ 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 },
+               { "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 },
+               { "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 },
+               { "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 },
                POPT_TABLEEND
        };
        poptContext popt_context;
@@ -1308,8 +1526,6 @@ int main(int argc, const char **argv)
        bindtextdomain(PACKAGE, LOCALEDIR);
        textdomain(PACKAGE);
 
-       crypt_fips_self_check(NULL);
-
        popt_context = poptGetContext(PACKAGE, argc, argv, popt_options, 0);
        poptSetOtherOptionHelp(popt_context,
                               _("[OPTION...] <action> <action-specific>"));
@@ -1351,6 +1567,10 @@ int main(int argc, const char **argv)
        if (r < -1)
                usage(popt_context, EXIT_FAILURE, poptStrerror(r),
                      poptBadOption(popt_context, POPT_BADOPTION_NOALIAS));
+
+       if (crypt_fips_mode())
+               crypt_log(NULL, CRYPT_LOG_VERBOSE, _("Running in FIPS mode.\n"));
+
        if (opt_version_mode) {
                log_std("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
                poptFreeContext(popt_context);
@@ -1360,12 +1580,6 @@ int main(int argc, const char **argv)
        if (!(aname = poptGetArg(popt_context)))
                usage(popt_context, EXIT_FAILURE, _("Argument <action> 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);
@@ -1377,43 +1591,77 @@ 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, "tcryptDump")) {
+               opt_type = "tcrypt";
+       } else if (!strcmp(aname, "remove") ||
+                  !strcmp(aname, "plainClose") ||
+                  !strcmp(aname, "luksClose") ||
+                  !strcmp(aname, "loopaesClose") ||
+                  !strcmp(aname, "tcryptClose")) {
+               aname = "close";
+       } else if (!strcmp(aname, "luksErase")) {
+               aname = "erase";
+               opt_type = "luks";
        }
 
+       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)
@@ -1459,19 +1707,32 @@ 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 open of plain and loopaes devices.\n"),
+               poptGetInvocationName(popt_context));
+
+       if (opt_offset && (strcmp(aname, "open") ||
+           (strcmp(opt_type, "plain") && strcmp(opt_type, "loopaes"))))
+               usage(popt_context, EXIT_FAILURE,
+               _("Option --offset is supported only for open of plain and loopaes devices.\n"),
+               poptGetInvocationName(popt_context));
+
+       if ((opt_tcrypt_hidden || opt_tcrypt_system || opt_tcrypt_backup) && strcmp(aname, "tcryptDump") &&
+           (strcmp(aname, "open") || strcmp(opt_type, "tcrypt")))
                usage(popt_context, EXIT_FAILURE,
-               _("Option --skip is supported only for create and loopaesOpen commands.\n"),
+               _("Option --tcrypt-hidden, --tcrypt-system or --tcrypt-backup is supported only for TCRYPT device.\n"),
                poptGetInvocationName(popt_context));
 
-       if (opt_offset && strcmp(aname, "create") && strcmp(aname, "loopaesOpen"))
+       if (opt_tcrypt_hidden && opt_allow_discards)
                usage(popt_context, EXIT_FAILURE,
-               _("Option --offset is supported only for create and loopaesOpen commands.\n"),
+               _("Option --tcrypt-hidden cannot be combined with --allow-discards.\n"),
                poptGetInvocationName(popt_context));
 
-       if (opt_hidden && strcmp(aname, "tcryptOpen") && strcmp(aname, "tcryptDump"))
+       if (opt_veracrypt && strcmp(opt_type, "tcrypt"))
                usage(popt_context, EXIT_FAILURE,
-               _("Option --hidden is supported only for TCRYPT commands.\n"),
+               _("Option --veracrypt is supported only for TCRYPT device type.\n"),
                poptGetInvocationName(popt_context));
 
        if (opt_debug) {