* Copyright (C) 2004, Christophe Saout <christophe@saout.de>
* Copyright (C) 2004-2007, Clemens Fruhwirth <clemens@endorphin.org>
* 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
static int action_argc;
static const char *null_action_argv[] = {NULL, NULL};
-static int action_open(int arg);
-static int action_close(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_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_luksRepair(int arg);
-static int action_tcryptDump(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[] = {
- { "open", action_open, 0, 1, 1, N_("<device> [<name>]"),N_("open device as mapping <name>") },
- { "close", action_close, 0, 1, 1, N_("<name>"), N_("close device (remove mapping)") },
- { "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") },
- { "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") },
- { "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") },
- { "tcryptDump", action_tcryptDump, 0, 1, 1, N_("<device>"), N_("dump TCRYPT device information") },
- { NULL, NULL, 0, 0, 0, NULL, NULL }
-};
-
static int _verify_passphrase(int def)
{
/* Batch mode switch off verify - if not overrided by -y */
return def;
}
-static int action_open_plain(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];
return r;
}
-static int action_open_loopaes(int arg __attribute__((unused)))
+static int action_open_loopaes(void)
{
struct crypt_device *cd = NULL;
struct crypt_params_loopaes params = {
return r;
}
-static int action_open_tcrypt(int arg __attribute__((unused)))
+static int action_open_tcrypt(void)
{
struct crypt_device *cd = NULL;
struct crypt_params_tcrypt params = {
return r;
}
-static int action_tcryptDump(int arg __attribute__((unused)))
+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 = {
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_close(int arg __attribute__((unused)))
+static int action_close(void)
{
struct crypt_device *cd = NULL;
int r;
return r;
}
-static int action_resize(int arg __attribute__((unused)))
+static int action_resize(void)
{
struct crypt_device *cd = NULL;
int r;
return r;
}
-static int action_status(int arg __attribute__((unused)))
+static int action_status(void)
{
crypt_status_info ci;
struct crypt_active_device cad;
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[] = {
{ "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";
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);
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"));
key_size / 8, iv_size, buffer_size,
&enc_mbr, &dec_mbr);
if (!r) {
- log_std("%s", header);
+ log_std("# Algorithm | Key | Encryption | Decryption\n");
strncat(cipher, "-", MAX_CIPHER_LEN);
strncat(cipher, cipher_mode, MAX_CIPHER_LEN);
log_std("%12s %4db %5.1f MiB/s %5.1f MiB/s\n",
} else if (r == -ENOENT)
log_err(_("Cipher %s is not available.\n"), opt_cipher);
} else {
+ action_benchmark_kdf("sha1");
+ action_benchmark_kdf("sha256");
+ action_benchmark_kdf("sha512");
+ action_benchmark_kdf("ripemd160");
+ action_benchmark_kdf("whirlpool");
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,
if (r == -ENOENT)
skipped++;
if (i == 0)
- log_std("%s", header);
+ log_std("# Algorithm | Key | Encryption | Decryption\n");
snprintf(cipher, MAX_CIPHER_LEN, "%s-%s",
bciphers[i].cipher, bciphers[i].mode);
return -EINVAL;
}
-static int action_luksRepair(int arg __attribute__((unused)))
+static int action_luksRepair(void)
{
struct crypt_device *cd = NULL;
int r;
return r;
}
-static int action_luksFormat(int arg __attribute__((unused)))
+static int action_luksFormat(void)
{
int r = -EINVAL, keysize;
const char *header_device;
return r;
}
-static int action_open_luks(int arg __attribute__((unused)))
+static int action_open_luks(void)
{
struct crypt_device *cd = NULL;
const char *data_device, *header_device, *activated_name;
return r;
}
-static int action_luksKillSlot(int arg __attribute__((unused)))
+static int action_luksKillSlot(void)
{
struct crypt_device *cd = NULL;
int r;
return r;
}
-static int action_luksRemoveKey(int arg __attribute__((unused)))
+static int action_luksRemoveKey(void)
{
struct crypt_device *cd = NULL;
char *password = NULL;
return r;
}
-static int action_luksAddKey(int arg __attribute__((unused)))
+static int action_luksAddKey(void)
{
int r = -EINVAL, keysize = 0;
char *key = NULL;
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;
crypt_set_iteration_time(cd, opt_iteration_time);
r = crypt_get_key(_("Enter LUKS passphrase to be changed: "),
- &password, &passwordLen,
+ &password, &password_size,
opt_keyfile_offset, opt_keyfile_size, opt_key_file,
opt_timeout, _verify_passphrase(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);
+ 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,
+ &password_new, &password_new_size,
opt_new_keyfile_offset, opt_new_keyfile_size,
opt_new_key_file,
opt_timeout, _verify_passphrase(0), 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;
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;
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))
return r;
}
-static int action_luksDump(int arg __attribute__((unused)))
+static int action_luksDump(void)
{
struct crypt_device *cd = NULL;
int r;
return r;
}
-static int action_luksSuspend(int arg __attribute__((unused)))
+static int action_luksSuspend(void)
{
struct crypt_device *cd = NULL;
int r;
return r;
}
-static int action_luksResume(int arg __attribute__((unused)))
+static int action_luksResume(void)
{
struct crypt_device *cd = NULL;
int r;
return r;
}
-static int action_luksBackup(int arg __attribute__((unused)))
+static int action_luksBackup(void)
{
struct crypt_device *cd = NULL;
int r;
return r;
}
-static int action_luksRestore(int arg __attribute__((unused)))
+static int action_luksRestore(void)
{
struct crypt_device *cd = NULL;
int r = 0;
return r;
}
-static int action_open(int arg __attribute__((unused)))
+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(0);
+ return action_open_luks();
} else if (!strcmp(opt_type, "plain")) {
if (action_argc < 2)
goto args;
- return action_open_plain(0);
+ return action_open_plain();
} else if (!strcmp(opt_type, "loopaes")) {
if (action_argc < 2)
goto args;
- return action_open_loopaes(0);
+ return action_open_loopaes();
} else if (!strcmp(opt_type, "tcrypt")) {
if (action_argc < 2 && !opt_test_passphrase)
goto args;
- return action_open_tcrypt(0);
+ return action_open_tcrypt();
}
log_err(_("Unrecognized metadata device type %s.\n"), opt_type);
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_("<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") },
+ { "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)),
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"
if (action->required_memlock)
crypt_memory_lock(NULL, 1);
- r = action->handler(action->arg);
+ r = action->handler();
if (action->required_memlock)
crypt_memory_lock(NULL, 0);
projects / platform / upstream / cryptsetup.git / blobdiff