+/*
+ * cryptsetup - setup cryptographic volumes for dm-crypt
+ *
+ * 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.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
+#include <stdarg.h>
#include <inttypes.h>
#include <errno.h>
#include <unistd.h>
+#include <ctype.h>
+#include <sys/stat.h>
+#include <fcntl.h>
#include <assert.h>
-
-#include <libcryptsetup.h>
+#include <limits.h>
#include <popt.h>
-#include "../config.h"
-
#include "cryptsetup.h"
-static int opt_verbose = 1;
-static char *opt_cipher = NULL;
-static char *opt_hash = DEFAULT_HASH;
+static int opt_verbose = 0;
+static int opt_debug = 0;
+static const char *opt_cipher = NULL;
+static const char *opt_hash = NULL;
static int opt_verify_passphrase = 0;
-static char *opt_key_file = NULL;
-static unsigned int opt_key_size = 0;
-static int opt_key_slot = -1;
+static const char *opt_key_file = NULL;
+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 int opt_key_size = 0;
+static long opt_keyfile_size = 0;
+static long opt_new_keyfile_size = 0;
+static long opt_keyfile_offset = 0;
+static long opt_new_keyfile_offset = 0;
+static int opt_key_slot = CRYPT_ANY_SLOT;
static uint64_t opt_size = 0;
static uint64_t opt_offset = 0;
static uint64_t opt_skip = 0;
+static int opt_skip_valid = 0;
static int opt_readonly = 0;
static int opt_iteration_time = 1000;
static int opt_batch_mode = 0;
static int opt_timeout = 0;
static int opt_tries = 3;
static int opt_align_payload = 0;
-static int opt_non_exclusive = 0;
+static int opt_random = 0;
+static int opt_urandom = 0;
+static int opt_dump_master_key = 0;
+static int opt_shared = 0;
+static int opt_allow_discards = 0;
+static int opt_without_activation = 0;
static const char **action_argv;
static int action_argc;
static int action_luksFormat(int arg);
static int action_luksOpen(int arg);
static int action_luksAddKey(int arg);
-static int action_luksDelKey(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 struct action_type {
const char *type;
- int (*handler)(int);
+ 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, N_("<name> <device>"), N_("create device") },
- { "remove", action_remove, 0, 1, N_("<name>"), N_("remove device") },
- { "resize", action_resize, 0, 1, N_("<name>"), N_("resize active device") },
- { "status", action_status, 0, 1, N_("<name>"), N_("show device status") },
- { "luksFormat", action_luksFormat, 0, 1, N_("<device> [<new key file>]"), N_("formats a LUKS device") },
- { "luksOpen", action_luksOpen, 0, 2, N_("<device> <name> "), N_("open LUKS device as mapping <name>") },
- { "luksAddKey", action_luksAddKey, 0, 1, N_("<device> [<new key file>]"), N_("add key to LUKS device") },
- { "luksRemoveKey", action_luksRemoveKey, 0, 1, N_("<device> [<key file>]"), N_("removes supplied key or key file from LUKS device") },
- { "luksKillSlot", action_luksKillSlot, 0, 2, N_("<device> <key slot>"), N_("wipes key with number <key slot> from LUKS device") },
- { "luksUUID", action_luksUUID, 0, 1, N_("<device>"), N_("print UUID of LUKS device") },
- { "isLuks", action_isLuks, 0, 1, N_("<device>"), N_("tests <device> for LUKS partition header") },
- { "luksClose", action_remove, 0, 1, N_("<name>"), N_("remove LUKS mapping") },
- { "luksDump", action_luksDump, 0, 1, N_("<device>"), N_("dump LUKS partition information") },
- { "luksDelKey", action_luksDelKey, 0, 2, N_("<device> <key slot>"), N_("identical to luksKillSlot - DEPRECATED - see man page") },
- { "reload", action_create, 1, 2, N_("<name> <device>"), N_("modify active device - DEPRECATED - see man page") },
- { NULL, NULL, 0, 0, NULL }
+ { "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") },
+ { "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") },
+ { NULL, NULL, 0, 0, 0, NULL, NULL }
};
-/* Interface Callbacks */
-static int yesDialog(char *msg)
+__attribute__((format(printf, 5, 6)))
+static void clogger(struct crypt_device *cd, int level, const char *file,
+ int line, const char *format, ...)
{
- int r = 0;
- if(isatty(0) && !opt_batch_mode) {
- char *answer=NULL;
- size_t size=0;
- fprintf(stderr,"\nWARNING!\n========\n");
- fprintf(stderr,"%s\n\nAre you sure? (Type uppercase yes): ",msg);
- if(getline(&answer,&size,stdin) == -1)
+ va_list argp;
+ char *target = NULL;
+
+ va_start(argp, format);
+
+ if (vasprintf(&target, format, argp) > 0) {
+ if (level >= 0) {
+ crypt_log(cd, level, target);
+#ifdef CRYPT_DEBUG
+ } else if (opt_debug)
+ printf("# %s:%d %s\n", file ?: "?", line, target);
+#else
+ } else if (opt_debug)
+ printf("# %s\n", target);
+#endif
+ }
+
+ va_end(argp);
+ free(target);
+}
+
+static int _yesDialog(const char *msg, void *usrptr __attribute__((unused)))
+{
+ char *answer = NULL;
+ size_t size = 0;
+ int r = 1;
+
+ if(isatty(STDIN_FILENO) && !opt_batch_mode) {
+ log_std("\nWARNING!\n========\n");
+ log_std("%s\n\nAre you sure? (Type uppercase yes): ", msg);
+ if(getline(&answer, &size, stdin) == -1) {
+ perror("getline");
+ free(answer);
return 0;
- if(strcmp(answer,"YES\n") == 0)
- r = 1;
+ }
+ if(strcmp(answer, "YES\n"))
+ r = 0;
free(answer);
- } else
- r = 1;
+ }
+
return r;
}
-static void cmdLineLog(int class, char *msg) {
- switch(class) {
+static void _log(int level, const char *msg, void *usrptr __attribute__((unused)))
+{
+ switch(level) {
- case CRYPT_LOG_NORMAL:
- fputs(msg, stdout);
- break;
- case CRYPT_LOG_ERROR:
- fputs(msg, stderr);
- break;
- default:
- fprintf(stderr, "Internal error on logging class for msg: %s", msg);
- break;
- }
+ case CRYPT_LOG_NORMAL:
+ fputs(msg, stdout);
+ break;
+ case CRYPT_LOG_VERBOSE:
+ if (opt_verbose)
+ fputs(msg, stdout);
+ break;
+ case CRYPT_LOG_ERROR:
+ fputs(msg, stderr);
+ break;
+ case CRYPT_LOG_DEBUG:
+ if (opt_debug)
+ printf("# %s\n", msg);
+ break;
+ default:
+ fprintf(stderr, "Internal error on logging class for msg: %s", msg);
+ break;
+ }
}
-static struct interface_callbacks cmd_icb = {
- .yesDialog = yesDialog,
- .log = cmdLineLog,
-};
+static void _quiet_log(int level, const char *msg, void *usrptr)
+{
+ if (!opt_verbose && (level == CRYPT_LOG_ERROR || level == CRYPT_LOG_NORMAL))
+ level = CRYPT_LOG_VERBOSE;
+ _log(level, msg, usrptr);
+}
-/* End ICBs */
+static int _verify_passphrase(int def)
+{
+ /* Batch mode switch off verify - if not overrided by -y */
+ if (opt_verify_passphrase)
+ def = 1;
+ else if (opt_batch_mode)
+ def = 0;
+
+ /* Non-tty input doesn't allow verify */
+ if (def && !isatty(STDIN_FILENO)) {
+ if (opt_verify_passphrase)
+ log_err(_("Can't do passphrase verification on non-tty inputs.\n"));
+ def = 0;
+ }
+
+ return def;
+}
static void show_status(int errcode)
{
- char error[256];
+ char error[256], *error_;
+
+ if(!opt_verbose)
+ return;
if(!errcode) {
- fprintf(stderr, _("Command successful.\n"));
- return;
+ log_std(_("Command successful.\n"));
+ return;
}
crypt_get_error(error, sizeof(error));
- if (!opt_verbose) {
- char *error_ = strerror_r(errcode, error, sizeof(error));
+
+ if (!error[0]) {
+ error_ = strerror_r(-errcode, error, sizeof(error));
if (error_ != error) {
strncpy(error, error_, sizeof(error));
- error[sizeof error - 1] = '\0';
+ error[sizeof(error) - 1] = '\0';
}
}
- fprintf(stderr, _("Command failed"));
+ log_err(_("Command failed with code %i"), -errcode);
if (*error)
- fprintf(stderr, ": %s\n", error);
+ log_err(": %s\n", error);
else
- fputs(".\n", stderr);
- return;
-}
-
-static int action_create(int reload)
-{
- struct crypt_options options = {
- .name = action_argv[0],
- .device = action_argv[1],
- .cipher = opt_cipher?opt_cipher:DEFAULT_CIPHER,
- .hash = opt_hash,
- .key_file = opt_key_file,
- .key_size = ((opt_key_size)?opt_key_size:DEFAULT_KEY_SIZE)/8,
- .key_slot = opt_key_slot,
- .passphrase_fd = 0, /* stdin */
- .flags = 0,
- .size = opt_size,
- .offset = opt_offset,
+ log_err(".\n");
+}
+
+static const char *uuid_or_device(const char *spec)
+{
+ static char device[PATH_MAX];
+ char s, *ptr;
+ int i = 0, uuid_len = 5;
+
+ /* Check if it is correct UUID=<LUKS_UUID> format */
+ if (spec && !strncmp(spec, "UUID=", uuid_len)) {
+ strcpy(device, "/dev/disk/by-uuid/");
+ ptr = &device[strlen(device)];
+ i = uuid_len;
+ while ((s = spec[i++]) && i < PATH_MAX) {
+ if (!isxdigit(s) && s != '-')
+ return spec; /* Bail it out */
+ if (isalpha(s))
+ s = tolower(s);
+ *ptr++ = s;
+ }
+ *ptr = '\0';
+ return device;
+ }
+
+ return spec;
+}
+
+static int action_create(int arg __attribute__((unused)))
+{
+ struct crypt_device *cd = NULL;
+ char cipher[MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN];
+ struct crypt_params_plain params = {
+ .hash = opt_hash ?: DEFAULT_PLAIN_HASH,
.skip = opt_skip,
- .timeout = opt_timeout,
- .tries = opt_tries,
- .icb = &cmd_icb,
+ .offset = opt_offset,
+ .size = opt_size,
};
+ char *password = NULL;
+ size_t passwordLen;
+ size_t key_size = (opt_key_size ?: DEFAULT_PLAIN_KEYBITS) / 8;
+ uint32_t activate_flags = 0;
int r;
- if(reload)
- fprintf(stderr, _("The reload action is deprecated. Please use \"dmsetup reload\" in case you really need this functionality.\nWARNING: do not use reload to touch LUKS devices. If that is the case, hit Ctrl-C now.\n"));
+ if (params.hash && !strcmp(params.hash, "plain"))
+ params.hash = NULL;
- if (options.hash && strcmp(options.hash, "plain") == 0)
- options.hash = NULL;
- if (opt_verify_passphrase)
- options.flags |= CRYPT_FLAG_VERIFY;
- if (opt_readonly)
- options.flags |= CRYPT_FLAG_READONLY;
+ /* FIXME: temporary hack */
+ if (opt_key_file && strcmp(opt_key_file, "-"))
+ params.hash = NULL;
- if (reload)
- r = crypt_update_device(&options);
- else
- r = crypt_create_device(&options);
+ if ((opt_keyfile_offset || opt_keyfile_size) && opt_key_file)
+ log_std(("Ignoring keyfile offset and size options, keyfile read "
+ "size is always the same as encryption key size.\n"));
+
+ r = crypt_parse_name_and_mode(opt_cipher ?: DEFAULT_CIPHER(PLAIN),
+ cipher, NULL, cipher_mode);
+ if (r < 0) {
+ log_err("No known cipher specification pattern detected.\n");
+ goto out;
+ }
+
+ if ((r = crypt_init(&cd, action_argv[1])))
+ goto out;
+
+ crypt_set_timeout(cd, opt_timeout);
+ crypt_set_password_retry(cd, opt_tries);
+
+ r = crypt_format(cd, CRYPT_PLAIN,
+ cipher, cipher_mode,
+ NULL, NULL,
+ key_size,
+ ¶ms);
if (r < 0)
- show_status(-r);
+ goto out;
+
+ if (opt_readonly)
+ activate_flags |= CRYPT_ACTIVATE_READONLY;
+
+ if (opt_shared)
+ activate_flags |= CRYPT_ACTIVATE_SHARED;
+
+ if (opt_allow_discards)
+ activate_flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS;
+
+ if (opt_key_file)
+ /* With hashing, read the whole keyfile */
+ r = crypt_activate_by_keyfile_offset(cd, action_argv[0],
+ CRYPT_ANY_SLOT, opt_key_file,
+ params.hash ? 0 : key_size, 0,
+ activate_flags);
+ else {
+ r = crypt_get_key(_("Enter passphrase: "),
+ &password, &passwordLen,
+ opt_keyfile_offset, opt_keyfile_size,
+ NULL, opt_timeout,
+ _verify_passphrase(0),
+ cd);
+ if (r < 0)
+ goto out;
+
+ r = crypt_activate_by_passphrase(cd, action_argv[0],
+ CRYPT_ANY_SLOT, password, passwordLen, activate_flags);
+ }
+out:
+ crypt_free(cd);
+ crypt_safe_free(password);
+
return r;
}
-static int action_remove(int arg)
+static int action_loopaesOpen(int arg __attribute__((unused)))
{
- struct crypt_options options = {
- .name = action_argv[0],
- .icb = &cmd_icb,
+ struct crypt_device *cd = NULL;
+ struct crypt_params_loopaes params = {
+ .hash = opt_hash ?: NULL,
+ .offset = opt_offset,
+ .skip = opt_skip_valid ? opt_skip : opt_offset,
};
+ unsigned int key_size = (opt_key_size ?: DEFAULT_LOOPAES_KEYBITS) / 8;
+ uint32_t activate_flags = 0;
int r;
- r = crypt_remove_device(&options);
+ if (!opt_key_file) {
+ log_err(_("Option --key-file is required.\n"));
+ return -EINVAL;
+ }
+
+ if (opt_readonly)
+ activate_flags |= CRYPT_ACTIVATE_READONLY;
+
+ if (opt_allow_discards)
+ activate_flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS;
+
+ if ((r = crypt_init(&cd, action_argv[0])))
+ goto out;
+
+ r = crypt_format(cd, CRYPT_LOOPAES, opt_cipher ?: DEFAULT_LOOPAES_CIPHER,
+ NULL, NULL, NULL, key_size, ¶ms);
if (r < 0)
- show_status(-r);
+ goto out;
+
+ r = crypt_activate_by_keyfile_offset(cd, action_argv[1], CRYPT_ANY_SLOT,
+ opt_key_file, opt_keyfile_size,
+ opt_keyfile_size, activate_flags);
+out:
+ crypt_free(cd);
+
return r;
}
-static int action_resize(int arg)
+static int action_remove(int arg __attribute__((unused)))
{
- struct crypt_options options = {
- .name = action_argv[0],
- .size = opt_size,
- .icb = &cmd_icb,
- };
+ struct crypt_device *cd = NULL;
int r;
- r = crypt_resize_device(&options);
- if (r < 0)
- show_status(-r);
+ r = crypt_init_by_name(&cd, action_argv[0]);
+ if (r == 0)
+ r = crypt_deactivate(cd, action_argv[0]);
+
+ crypt_free(cd);
return r;
}
-static int action_status(int arg)
+static int action_resize(int arg __attribute__((unused)))
{
- struct crypt_options options = {
- .name = action_argv[0],
- .icb = &cmd_icb,
- };
+ struct crypt_device *cd = NULL;
int r;
- r = crypt_query_device(&options);
-
- if (r < 0) {
- /* error */
- show_status(-r);
- } else if (r == 0) {
- /* inactive */
- printf("%s/%s is inactive.\n", crypt_get_dir(), options.name);
- r = 1;
- } else {
- /* active */
- printf("%s/%s is active:\n", crypt_get_dir(), options.name);
- printf(" cipher: %s\n", options.cipher);
- printf(" keysize: %d bits\n", options.key_size * 8);
- printf(" device: %s\n", options.device);
- printf(" offset: %" PRIu64 " sectors\n", options.offset);
- printf(" size: %" PRIu64 " sectors\n", options.size);
- if (options.skip)
- printf(" skipped: %" PRIu64 " sectors\n", options.skip);
- printf(" mode: %s\n", (options.flags & CRYPT_FLAG_READONLY)
- ? "readonly" : "read/write");
- crypt_put_options(&options);
+ r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device);
+ if (r == 0)
+ r = crypt_resize(cd, action_argv[0], opt_size);
+
+ crypt_free(cd);
+ return r;
+}
+
+static int action_status(int arg __attribute__((unused)))
+{
+ crypt_status_info ci;
+ struct crypt_active_device cad;
+ struct crypt_device *cd = NULL;
+ struct stat st;
+ char *backing_file;
+ const char *device;
+ int path = 0, r = 0;
+
+ /* perhaps a path, not a dm device name */
+ if (strchr(action_argv[0], '/') && !stat(action_argv[0], &st))
+ path = 1;
+
+ ci = crypt_status(NULL, action_argv[0]);
+ switch (ci) {
+ case CRYPT_INVALID:
+ r = -EINVAL;
+ break;
+ case CRYPT_INACTIVE:
+ if (path)
+ log_std("%s is inactive.\n", action_argv[0]);
+ else
+ log_std("%s/%s is inactive.\n", crypt_get_dir(), action_argv[0]);
+ r = -ENODEV;
+ break;
+ case CRYPT_ACTIVE:
+ case CRYPT_BUSY:
+ if (path)
+ log_std("%s is active%s.\n", action_argv[0],
+ ci == CRYPT_BUSY ? " and is in use" : "");
+ else
+ log_std("%s/%s is active%s.\n", crypt_get_dir(), action_argv[0],
+ ci == CRYPT_BUSY ? " and is in use" : "");
+
+ r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device);
+ if (r < 0 || !crypt_get_type(cd))
+ goto out;
+
+ log_std(" type: %s\n", crypt_get_type(cd));
+
+ r = crypt_get_active_device(cd, action_argv[0], &cad);
+ if (r < 0)
+ goto out;
+
+ log_std(" cipher: %s-%s\n", crypt_get_cipher(cd), crypt_get_cipher_mode(cd));
+ log_std(" keysize: %d bits\n", crypt_get_volume_key_size(cd) * 8);
+ device = crypt_get_device_name(cd);
+ log_std(" device: %s\n", device);
+ if (crypt_loop_device(device)) {
+ backing_file = crypt_loop_backing_file(device);
+ log_std(" loop: %s\n", backing_file);
+ free(backing_file);
+ }
+ log_std(" offset: %" PRIu64 " sectors\n", cad.offset);
+ log_std(" size: %" PRIu64 " sectors\n", cad.size);
+ if (cad.iv_offset)
+ log_std(" skipped: %" PRIu64 " sectors\n", cad.iv_offset);
+ log_std(" mode: %s\n", cad.flags & CRYPT_ACTIVATE_READONLY ?
+ "readonly" : "read/write");
+ if (cad.flags & CRYPT_ACTIVATE_ALLOW_DISCARDS)
+ log_std(" flags: discards\n");
+ }
+out:
+ crypt_free(cd);
+ if (r == -ENOTSUP)
r = 0;
+ return r;
+}
+
+static int _read_mk(const char *file, char **key, int keysize)
+{
+ int fd;
+
+ *key = crypt_safe_alloc(keysize);
+ if (!*key)
+ return -ENOMEM;
+
+ fd = open(file, O_RDONLY);
+ if (fd == -1) {
+ log_err("Cannot read keyfile %s.\n", file);
+ goto fail;
+ }
+ if ((read(fd, *key, keysize) != keysize)) {
+ log_err("Cannot read %d bytes from keyfile %s.\n", keysize, file);
+ close(fd);
+ goto fail;
}
+ close(fd);
+ return 0;
+fail:
+ crypt_safe_free(*key);
+ *key = NULL;
+ return -EINVAL;
+}
+
+static int action_luksRepair(int arg __attribute__((unused)))
+{
+ struct crypt_device *cd = NULL;
+ int r;
+
+ if ((r = crypt_init(&cd, action_argv[0])))
+ goto out;
+
+ /* Currently only LUKS1 allows repair */
+ crypt_set_log_callback(cd, _quiet_log, NULL);
+ r = crypt_load(cd, CRYPT_LUKS1, NULL);
+ crypt_set_log_callback(cd, _log, NULL);
+ if (r == 0) {
+ log_verbose( _("No known problems detected for LUKS header.\n"));
+ goto out;
+ }
+
+ r = _yesDialog(_("Really try to repair LUKS device header?"),
+ NULL) ? 0 : -EINVAL;
+ if (r == 0)
+ r = crypt_repair(cd, CRYPT_LUKS1, NULL);
+out:
+ crypt_free(cd);
return r;
}
-static int action_luksFormat(int arg)
+static int action_luksFormat(int arg __attribute__((unused)))
{
- struct crypt_options options = {
- .key_size = (opt_key_size != 0 ? opt_key_size : DEFAULT_LUKS_KEY_SIZE) / 8,
- .key_slot = opt_key_slot,
- .device = action_argv[0],
- .cipher = opt_cipher?opt_cipher:DEFAULT_LUKS_CIPHER,
- .new_key_file = action_argc > 1 ? action_argv[1] : NULL,
- .flags = opt_verify_passphrase ? CRYPT_FLAG_VERIFY : (!opt_batch_mode?CRYPT_FLAG_VERIFY_IF_POSSIBLE : 0),
- .iteration_time = opt_iteration_time,
- .timeout = opt_timeout,
- .align_payload = opt_align_payload,
- .icb = &cmd_icb,
+ int r = -EINVAL, keysize;
+ const char *header_device;
+ char *msg = NULL, *key = NULL, cipher [MAX_CIPHER_LEN], cipher_mode[MAX_CIPHER_LEN];
+ char *password = NULL;
+ size_t passwordLen;
+ struct crypt_device *cd = NULL;
+ struct crypt_params_luks1 params = {
+ .hash = opt_hash ?: DEFAULT_LUKS1_HASH,
+ .data_alignment = opt_align_payload,
+ .data_device = opt_header_device ? action_argv[0] : NULL,
};
- int r = 0; char *msg = NULL;
+ header_device = opt_header_device ?: action_argv[0];
- if(asprintf(&msg, _("This will overwrite data on %s irrevocably."), options.device) == -1) {
- fputs(_("memory allocation error in action_luksFormat"), stderr);
- } else {
- r = yesDialog(msg) ? crypt_luksFormat(&options) : -EINVAL;
- free(msg);
- show_status(-r);
+ if(asprintf(&msg, _("This will overwrite data on %s irrevocably."),
+ header_device) == -1) {
+ log_err(_("memory allocation error in action_luksFormat"));
+ r = -ENOMEM;
+ goto out;
}
+ r = _yesDialog(msg, NULL) ? 0 : -EINVAL;
+ free(msg);
+ if (r < 0)
+ goto out;
+
+ r = crypt_parse_name_and_mode(opt_cipher ?: DEFAULT_CIPHER(LUKS1),
+ cipher, NULL, cipher_mode);
+ if (r < 0) {
+ log_err(_("No known cipher specification pattern detected.\n"));
+ goto out;
+ }
+
+ if ((r = crypt_init(&cd, header_device))) {
+ if (opt_header_device)
+ log_err(_("Cannot use %s as on-disk header.\n"), header_device);
+ goto out;
+ }
+
+ keysize = (opt_key_size ?: DEFAULT_LUKS1_KEYBITS) / 8;
+
+ crypt_set_timeout(cd, opt_timeout);
+ if (opt_iteration_time)
+ crypt_set_iteration_time(cd, opt_iteration_time);
+
+ if (opt_random)
+ crypt_set_rng_type(cd, CRYPT_RNG_RANDOM);
+ else if (opt_urandom)
+ crypt_set_rng_type(cd, CRYPT_RNG_URANDOM);
+
+ r = crypt_get_key(_("Enter LUKS passphrase: "), &password, &passwordLen,
+ opt_keyfile_offset, opt_keyfile_size, opt_key_file,
+ opt_timeout, _verify_passphrase(1), cd);
+ if (r < 0)
+ goto out;
+
+ if (opt_master_key_file) {
+ r = _read_mk(opt_master_key_file, &key, keysize);
+ if (r < 0)
+ goto out;
+ }
+
+ r = crypt_format(cd, CRYPT_LUKS1, cipher, cipher_mode,
+ opt_uuid, key, keysize, ¶ms);
+ if (r < 0)
+ goto out;
+
+ r = crypt_keyslot_add_by_volume_key(cd, opt_key_slot,
+ key, keysize,
+ password, passwordLen);
+out:
+ crypt_free(cd);
+ crypt_safe_free(key);
+ crypt_safe_free(password);
+
return r;
}
-static int action_luksOpen(int arg)
+static int action_luksOpen(int arg __attribute__((unused)))
{
- struct crypt_options options = {
- .name = action_argv[1],
- .device = action_argv[0],
- .key_file = opt_key_file,
- .timeout = opt_timeout,
- .tries = opt_tries,
- .icb = &cmd_icb,
- };
- int r;
+ struct crypt_device *cd = NULL;
+ const char *data_device, *header_device, *activated_name;
+ char *key = NULL;
+ uint32_t flags = 0;
+ int r, keysize;
+
+ if (opt_header_device) {
+ header_device = uuid_or_device(opt_header_device);
+ data_device = action_argv[0];
+ } else {
+ header_device = uuid_or_device(action_argv[0]);
+ data_device = NULL;
+ }
+
+ activated_name = opt_without_activation ? NULL : action_argv[1];
+
+ if ((r = crypt_init(&cd, header_device)))
+ goto out;
+
+ if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
+ goto out;
+
+ if (data_device &&
+ (r = crypt_set_data_device(cd, data_device)))
+ goto out;
+
+ if (!data_device && (crypt_get_data_offset(cd) < 8)) {
+ log_err(_("Reduced data offset is allowed only for detached LUKS header.\n"));
+ r = -EINVAL;
+ goto out;
+ }
+
+ crypt_set_timeout(cd, opt_timeout);
+ crypt_set_password_retry(cd, opt_tries);
+ crypt_set_password_verify(cd, _verify_passphrase(0));
+
+ if (opt_iteration_time)
+ crypt_set_iteration_time(cd, opt_iteration_time);
- opt_verbose = 1;
- options.flags = 0;
if (opt_readonly)
- options.flags |= CRYPT_FLAG_READONLY;
- if (opt_non_exclusive)
- options.flags |= CRYPT_FLAG_NON_EXCLUSIVE_ACCESS;
- r = crypt_luksOpen(&options);
- show_status(-r);
+ flags |= CRYPT_ACTIVATE_READONLY;
+
+ if (opt_allow_discards)
+ flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS;
+
+ if (opt_master_key_file) {
+ keysize = crypt_get_volume_key_size(cd);
+ r = _read_mk(opt_master_key_file, &key, keysize);
+ if (r < 0)
+ goto out;
+ r = crypt_activate_by_volume_key(cd, activated_name,
+ key, keysize, flags);
+ } else if (opt_key_file) {
+ crypt_set_password_retry(cd, 1);
+ r = crypt_activate_by_keyfile_offset(cd, activated_name,
+ opt_key_slot, opt_key_file, opt_keyfile_size,
+ opt_keyfile_offset, flags);
+ } else
+ r = crypt_activate_by_passphrase(cd, activated_name,
+ opt_key_slot, NULL, 0, flags);
+out:
+ crypt_safe_free(key);
+ crypt_free(cd);
return r;
}
-static int action_luksDelKey(int arg)
+static int verify_keyslot(struct crypt_device *cd, int key_slot,
+ char *msg_last, char *msg_pass,
+ const char *key_file, int keyfile_offset,
+ int keyfile_size)
{
- fprintf(stderr,"luksDelKey is a deprecated action name.\nPlease use luksKillSlot.\n");
- return action_luksKillSlot(arg);
+ crypt_keyslot_info ki;
+ char *password = NULL;
+ size_t passwordLen;
+ int i, r;
+
+ ki = crypt_keyslot_status(cd, key_slot);
+ if (ki == CRYPT_SLOT_ACTIVE_LAST && msg_last && !_yesDialog(msg_last, NULL))
+ return -EPERM;
+
+ r = crypt_get_key(msg_pass, &password, &passwordLen,
+ keyfile_offset, keyfile_size, key_file, opt_timeout,
+ _verify_passphrase(0), cd);
+ if(r < 0)
+ goto out;
+
+ if (ki == CRYPT_SLOT_ACTIVE_LAST) {
+ /* check the last keyslot */
+ r = crypt_activate_by_passphrase(cd, NULL, key_slot,
+ password, passwordLen, 0);
+ } else {
+ /* try all other keyslots */
+ for (i = 0; i < crypt_keyslot_max(CRYPT_LUKS1); i++) {
+ if (i == key_slot)
+ continue;
+ ki = crypt_keyslot_status(cd, key_slot);
+ if (ki == CRYPT_SLOT_ACTIVE)
+ r = crypt_activate_by_passphrase(cd, NULL, i,
+ password, passwordLen, 0);
+ if (r == i)
+ break;
+ }
+ }
+
+ if (r < 0)
+ log_err(_("No key available with this passphrase.\n"));
+out:
+ crypt_safe_free(password);
+ return r;
}
-static int action_luksKillSlot(int arg)
+static int action_luksKillSlot(int arg __attribute__((unused)))
{
- struct crypt_options options = {
- .device = action_argv[0],
- .key_slot = atoi(action_argv[1]),
- .key_file = opt_key_file,
- .timeout = opt_timeout,
- .flags = !opt_batch_mode?CRYPT_FLAG_VERIFY_ON_DELKEY : 0,
- .icb = &cmd_icb,
- };
- int r;
+ struct crypt_device *cd = NULL;
+ int r;
+
+ if ((r = crypt_init(&cd, uuid_or_device(action_argv[0]))))
+ goto out;
+
+ crypt_set_confirm_callback(cd, _yesDialog, NULL);
+ crypt_set_timeout(cd, opt_timeout);
- opt_verbose = 1;
- r = crypt_luksKillSlot(&options);
- show_status(-r);
+ if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
+ goto out;
+
+ switch (crypt_keyslot_status(cd, opt_key_slot)) {
+ case CRYPT_SLOT_ACTIVE_LAST:
+ case CRYPT_SLOT_ACTIVE:
+ log_verbose(_("Key slot %d selected for deletion.\n"), opt_key_slot);
+ break;
+ case CRYPT_SLOT_INACTIVE:
+ log_err(_("Key %d not active. Can't wipe.\n"), opt_key_slot);
+ case CRYPT_SLOT_INVALID:
+ r = -EINVAL;
+ goto out;
+ }
+
+ if (!opt_batch_mode) {
+ r = verify_keyslot(cd, opt_key_slot,
+ _("This is the last keyslot. Device will become unusable after purging this key."),
+ _("Enter any remaining LUKS passphrase: "),
+ opt_key_file, opt_keyfile_offset, opt_keyfile_size);
+ if (r < 0)
+ goto out;
+ }
+
+ r = crypt_keyslot_destroy(cd, opt_key_slot);
+out:
+ crypt_free(cd);
return r;
}
-static int action_luksRemoveKey(int arg)
+static int action_luksRemoveKey(int arg __attribute__((unused)))
{
- struct crypt_options options = {
- .device = action_argv[0],
- .new_key_file = action_argc>1?action_argv[1]:NULL,
- .key_file = opt_key_file,
- .timeout = opt_timeout,
- .flags = !opt_batch_mode?CRYPT_FLAG_VERIFY_ON_DELKEY : 0,
- .icb = &cmd_icb,
- };
- int r;
+ struct crypt_device *cd = NULL;
+ char *password = NULL;
+ size_t passwordLen;
+ int r;
+
+ if ((r = crypt_init(&cd, uuid_or_device(action_argv[0]))))
+ goto out;
+
+ crypt_set_confirm_callback(cd, _yesDialog, NULL);
+ crypt_set_timeout(cd, opt_timeout);
+
+ if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
+ goto out;
+
+ r = crypt_get_key(_("Enter LUKS passphrase to be deleted: "),
+ &password, &passwordLen,
+ opt_keyfile_offset, opt_keyfile_size, opt_key_file,
+ opt_timeout,
+ _verify_passphrase(0),
+ cd);
+ if(r < 0)
+ goto out;
+
+ r = crypt_activate_by_passphrase(cd, NULL, CRYPT_ANY_SLOT,
+ password, passwordLen, 0);
+ if (r < 0)
+ goto out;
+
+ opt_key_slot = r;
+ log_verbose(_("Key slot %d selected for deletion.\n"), opt_key_slot);
- opt_verbose = 1;
- r = crypt_luksRemoveKey(&options);
- show_status(-r);
+ if (crypt_keyslot_status(cd, opt_key_slot) == CRYPT_SLOT_ACTIVE_LAST &&
+ !_yesDialog(_("This is the last keyslot. "
+ "Device will become unusable after purging this key."),
+ NULL)) {
+ r = -EPERM;
+ goto out;
+ }
+
+ r = crypt_keyslot_destroy(cd, opt_key_slot);
+out:
+ crypt_safe_free(password);
+ crypt_free(cd);
return r;
}
-static int action_luksAddKey(int arg)
+static int action_luksAddKey(int arg __attribute__((unused)))
{
- struct crypt_options options = {
- .device = action_argv[0],
- .new_key_file = action_argc>1?action_argv[1]:NULL,
- .key_file = opt_key_file,
- .key_slot = opt_key_slot,
- .flags = opt_verify_passphrase ? CRYPT_FLAG_VERIFY : (!opt_batch_mode?CRYPT_FLAG_VERIFY_IF_POSSIBLE : 0),
- .iteration_time = opt_iteration_time,
- .timeout = opt_timeout,
- .icb = &cmd_icb,
- };
- int r;
+ int r = -EINVAL, keysize = 0;
+ char *key = NULL;
+ const char *opt_new_key_file = (action_argc > 1 ? action_argv[1] : NULL);
+ struct crypt_device *cd = NULL;
+
+ if ((r = crypt_init(&cd, uuid_or_device(action_argv[0]))))
+ goto out;
+
+ crypt_set_confirm_callback(cd, _yesDialog, NULL);
+
+ if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
+ goto out;
- opt_verbose = 1;
- r = crypt_luksAddKey(&options);
- show_status(-r);
+ keysize = crypt_get_volume_key_size(cd);
+ /* FIXME: lib cannot properly set verification for new/old passphrase */
+ crypt_set_password_verify(cd, _verify_passphrase(0));
+ crypt_set_timeout(cd, opt_timeout);
+ if (opt_iteration_time)
+ crypt_set_iteration_time(cd, opt_iteration_time);
+
+ if (opt_master_key_file) {
+ r = _read_mk(opt_master_key_file, &key, keysize);
+ if (r < 0)
+ goto out;
+ //FIXME: process keyfile arg
+ r = crypt_keyslot_add_by_volume_key(cd, opt_key_slot,
+ key, keysize, NULL, 0);
+ } else if (opt_key_file || opt_new_key_file) {
+ r = crypt_keyslot_add_by_keyfile_offset(cd, opt_key_slot,
+ opt_key_file, opt_keyfile_size, opt_keyfile_offset,
+ opt_new_key_file, opt_new_keyfile_size, opt_new_keyfile_offset);
+ } else {
+ r = crypt_keyslot_add_by_passphrase(cd, opt_key_slot,
+ NULL, 0, NULL, 0);
+ }
+out:
+ crypt_free(cd);
+ crypt_safe_free(key);
return r;
}
-static int action_isLuks(int arg)
+static int _slots_full(struct crypt_device *cd)
{
- struct crypt_options options = {
- .device = action_argv[0],
- .icb = &cmd_icb,
- };
- return crypt_isLuks(&options);
+ 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_luksUUID(int arg)
+static int action_luksChangeKey(int arg __attribute__((unused)))
{
- struct crypt_options options = {
- .device = action_argv[0],
- .icb = &cmd_icb,
- };
- int r;
+ 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;
+
+ if ((r = crypt_init(&cd, uuid_or_device(action_argv[0]))))
+ goto out;
+
+ if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
+ goto out;
- r = crypt_luksUUID(&options);
+ if (opt_iteration_time)
+ crypt_set_iteration_time(cd, opt_iteration_time);
+
+ r = crypt_get_key(_("Enter LUKS passphrase to be changed: "),
+ &password, &passwordLen,
+ opt_keyfile_offset, opt_keyfile_size, opt_key_file,
+ opt_timeout, _verify_passphrase(0), cd);
if (r < 0)
- show_status(-r);
+ 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"));
+ 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,
+ 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"));
+out:
+ crypt_safe_free(vk);
+ crypt_safe_free(password);
+ crypt_free(cd);
return r;
}
-static int action_luksDump(int arg)
+static int action_isLuks(int arg __attribute__((unused)))
{
- struct crypt_options options = {
- .device = action_argv[0],
- .icb = &cmd_icb,
- };
- int r;
+ struct crypt_device *cd = NULL;
+ int r;
+
+ if ((r = crypt_init(&cd, action_argv[0])))
+ goto out;
+
+ crypt_set_log_callback(cd, _quiet_log, NULL);
+ r = crypt_load(cd, CRYPT_LUKS1, NULL);
+out:
+ crypt_free(cd);
+ return r;
+}
+
+static int action_luksUUID(int arg __attribute__((unused)))
+{
+ struct crypt_device *cd = NULL;
+ const char *existing_uuid = NULL;
+ int r;
+
+ if ((r = crypt_init(&cd, action_argv[0])))
+ goto out;
- r = crypt_luksDump(&options);
+ crypt_set_confirm_callback(cd, _yesDialog, NULL);
+
+ if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
+ goto out;
+
+ if (opt_uuid)
+ r = crypt_set_uuid(cd, opt_uuid);
+ else {
+ existing_uuid = crypt_get_uuid(cd);
+ log_std("%s\n", existing_uuid ?: "");
+ r = existing_uuid ? 0 : 1;
+ }
+out:
+ crypt_free(cd);
+ return r;
+}
+
+static int luksDump_with_volume_key(struct crypt_device *cd)
+{
+ char *vk = NULL, *password = NULL;
+ size_t passwordLen = 0;
+ size_t vk_size;
+ unsigned i;
+ int r;
+
+ crypt_set_confirm_callback(cd, _yesDialog, NULL);
+ if (!_yesDialog(
+ _("LUKS 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_get_key(_("Enter LUKS passphrase: "), &password, &passwordLen,
+ opt_keyfile_offset, opt_keyfile_size, opt_key_file,
+ opt_timeout, 0, cd);
if (r < 0)
- show_status(-r);
+ goto out;
+
+ r = crypt_volume_key_get(cd, CRYPT_ANY_SLOT, vk, &vk_size,
+ password, passwordLen);
+ if (r < 0)
+ goto out;
+
+ log_std("LUKS header information for %s\n", crypt_get_device_name(cd));
+ log_std("Cipher name: \t%s\n", crypt_get_cipher(cd));
+ log_std("Cipher mode: \t%s\n", crypt_get_cipher_mode(cd));
+ log_std("Payload offset:\t%d\n", (int)crypt_get_data_offset(cd));
+ log_std("UUID: \t%s\n", crypt_get_uuid(cd));
+ log_std("MK bits: \t%d\n", (int)vk_size * 8);
+ log_std("MK dump:\t");
+
+ for(i = 0; i < vk_size; i++) {
+ if (i && !(i % 16))
+ log_std("\n\t\t");
+ log_std("%02hhx ", (char)vk[i]);
+ }
+ log_std("\n");
+
+out:
+ crypt_safe_free(password);
+ crypt_safe_free(vk);
+ return r;
+}
+
+static int action_luksDump(int arg __attribute__((unused)))
+{
+ struct crypt_device *cd = NULL;
+ int r;
+
+ if ((r = crypt_init(&cd, uuid_or_device(action_argv[0]))))
+ goto out;
+
+ if ((r = crypt_load(cd, CRYPT_LUKS1, NULL)))
+ goto out;
+
+ if (opt_dump_master_key)
+ r = luksDump_with_volume_key(cd);
+ else
+ r = crypt_dump(cd);
+out:
+ crypt_free(cd);
+ return r;
+}
+
+static int action_luksSuspend(int arg __attribute__((unused)))
+{
+ struct crypt_device *cd = NULL;
+ int r;
+
+ r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device);
+ if (!r)
+ r = crypt_suspend(cd, action_argv[0]);
+
+ crypt_free(cd);
+ return r;
+}
+
+static int action_luksResume(int arg __attribute__((unused)))
+{
+ struct crypt_device *cd = NULL;
+ int r;
+
+ if ((r = crypt_init_by_name_and_header(&cd, action_argv[0], opt_header_device)))
+ goto out;
+
+ crypt_set_timeout(cd, opt_timeout);
+ crypt_set_password_retry(cd, opt_tries);
+ crypt_set_password_verify(cd, _verify_passphrase(0));
+
+ if (opt_key_file)
+ r = crypt_resume_by_keyfile_offset(cd, action_argv[0], CRYPT_ANY_SLOT,
+ opt_key_file, opt_keyfile_size, opt_keyfile_offset);
+ else
+ r = crypt_resume_by_passphrase(cd, action_argv[0], CRYPT_ANY_SLOT,
+ NULL, 0);
+out:
+ crypt_free(cd);
return r;
}
-static void usage(poptContext popt_context, int exitcode,
- const char *error, const char *more)
+static int action_luksBackup(int arg __attribute__((unused)))
+{
+ struct crypt_device *cd = NULL;
+ int r;
+
+ if (!opt_header_backup_file) {
+ log_err(_("Option --header-backup-file is required.\n"));
+ return -EINVAL;
+ }
+
+ if ((r = crypt_init(&cd, uuid_or_device(action_argv[0]))))
+ goto out;
+
+ crypt_set_confirm_callback(cd, _yesDialog, NULL);
+
+ r = crypt_header_backup(cd, CRYPT_LUKS1, opt_header_backup_file);
+out:
+ crypt_free(cd);
+ return r;
+}
+
+static int action_luksRestore(int arg __attribute__((unused)))
+{
+ struct crypt_device *cd = NULL;
+ int r = 0;
+
+ if (!opt_header_backup_file) {
+ log_err(_("Option --header-backup-file is required.\n"));
+ return -EINVAL;
+ }
+
+ if ((r = crypt_init(&cd, action_argv[0])))
+ goto out;
+
+ crypt_set_confirm_callback(cd, _yesDialog, NULL);
+ r = crypt_header_restore(cd, CRYPT_LUKS1, opt_header_backup_file);
+out:
+ crypt_free(cd);
+ return r;
+}
+
+static __attribute__ ((noreturn)) void usage(poptContext popt_context,
+ int exitcode, const char *error,
+ const char *more)
{
poptPrintUsage(popt_context, stderr, 0);
if (error)
- fprintf(stderr, "%s: %s\n", more, error);
+ log_err("%s: %s\n", more, error);
+ poptFreeContext(popt_context);
exit(exitcode);
}
-static void help(poptContext popt_context, enum poptCallbackReason reason,
- struct poptOption *key, const char * arg, void *data)
+static void help(poptContext popt_context,
+ enum poptCallbackReason reason __attribute__((unused)),
+ struct poptOption *key,
+ const char *arg __attribute__((unused)),
+ void *data __attribute__((unused)))
{
if (key->shortName == '?') {
struct action_type *action;
- fprintf(stdout, "%s\n",PACKAGE_STRING);
+ log_std("%s\n",PACKAGE_STRING);
poptPrintHelp(popt_context, stdout, 0);
- printf(_("\n"
+ log_std(_("\n"
"<action> is one of:\n"));
for(action = action_types; action->type; action++)
- printf("\t%s %s - %s\n", action->type, _(action->arg_desc), _(action->desc));
-
- printf(_("\n"
+ log_std("\t%s %s - %s\n", action->type, _(action->arg_desc), _(action->desc));
+
+ log_std(_("\n"
"<name> is the device to create under %s\n"
"<device> is the encrypted device\n"
"<key slot> is the LUKS key slot number to modify\n"
"<key file> optional key file for the new key for luksAddKey action\n"),
crypt_get_dir());
- exit(0);
+
+ log_std(_("\nDefault compiled-in keyfile parameters:\n"
+ "\tMaximum keyfile size: %dkB, "
+ "Maximum interactive passphrase length %d (characters)\n"),
+ DEFAULT_KEYFILE_SIZE_MAXKB, DEFAULT_PASSPHRASE_SIZE_MAX);
+
+ log_std(_("\nDefault compiled-in device cipher parameters:\n"
+ "\tloop-AES: %s, Key %d bits\n"
+ "\tplain: %s, Key: %d bits, Password hashing: %s\n"
+ "\tLUKS1: %s, Key: %d bits, LUKS header hashing: %s, RNG: %s\n"),
+ DEFAULT_LOOPAES_CIPHER, DEFAULT_LOOPAES_KEYBITS,
+ DEFAULT_CIPHER(PLAIN), DEFAULT_PLAIN_KEYBITS, DEFAULT_PLAIN_HASH,
+ DEFAULT_CIPHER(LUKS1), DEFAULT_LUKS1_KEYBITS, DEFAULT_LUKS1_HASH,
+ DEFAULT_RNG);
+ exit(EXIT_SUCCESS);
} else
- usage(popt_context, 0, NULL, NULL);
-}
+ usage(popt_context, EXIT_SUCCESS, NULL, NULL);
+}
+
+static void _dbg_version_and_cmd(int argc, const char **argv)
+{
+ int i;
+
+ log_std("# %s %s processing \"", PACKAGE_NAME, PACKAGE_VERSION);
+ for (i = 0; i < argc; i++) {
+ if (i)
+ log_std(" ");
+ log_std("%s", argv[i]);
+ }
+ log_std("\"\n");
+}
+
+static int run_action(struct action_type *action)
+{
+ int r;
+
+ log_dbg("Running command %s.", action->type);
+
+ if (action->required_memlock)
+ crypt_memory_lock(NULL, 1);
+
+ r = action->handler(action->arg);
+
+ if (action->required_memlock)
+ crypt_memory_lock(NULL, 0);
+
+ /* Some functions returns keyslot # */
+ if (r > 0)
+ r = 0;
+
+ show_status(r);
+
+ /* Translate exit code to simple codes */
+ switch (r) {
+ case 0: r = EXIT_SUCCESS; break;
+ case -EEXIST:
+ case -EBUSY: r = 5; break;
+ case -ENOTBLK:
+ case -ENODEV: r = 4; break;
+ case -ENOMEM: r = 3; break;
+ case -EPERM: r = 2; break;
+ case -EINVAL:
+ case -ENOENT:
+ case -ENOSYS:
+ default: r = EXIT_FAILURE;
+ }
+ return r;
+}
-int main(int argc, char **argv)
+int main(int argc, const char **argv)
{
static char *popt_tmp;
static struct poptOption popt_help_options[] = {
POPT_TABLEEND
};
static struct poptOption popt_options[] = {
- { NULL, '\0', POPT_ARG_INCLUDE_TABLE, popt_help_options, 0, N_("Help options:"), NULL },
- { "verbose", 'v', POPT_ARG_NONE, &opt_verbose, 0, N_("Shows more detailed error messages"), NULL },
- { "cipher", 'c', POPT_ARG_STRING | POPT_ARGFLAG_SHOW_DEFAULT, &opt_cipher, 0, N_("The cipher used to encrypt the disk (see /proc/crypto)"), NULL },
- { "hash", 'h', POPT_ARG_STRING | POPT_ARGFLAG_SHOW_DEFAULT, &opt_hash, 0, N_("The hash used to create the encryption key from the passphrase"), NULL },
- { "verify-passphrase", 'y', POPT_ARG_NONE, &opt_verify_passphrase, 0, N_("Verifies the passphrase by asking for it twice"), NULL },
- { "key-file", 'd', POPT_ARG_STRING, &opt_key_file, 0, N_("Read the key from a file (can be /dev/random)"), NULL },
- { "key-size", 's', POPT_ARG_INT | POPT_ARGFLAG_SHOW_DEFAULT, &opt_key_size, 0, N_("The size of the encryption key"), N_("BITS") },
- { "key-slot", 'S', POPT_ARG_INT, &opt_key_slot, 0, N_("Slot number for new key (default is first free)"), NULL },
- { "size", 'b', POPT_ARG_STRING, &popt_tmp, 1, N_("The size of the device"), N_("SECTORS") },
- { "offset", 'o', POPT_ARG_STRING, &popt_tmp, 2, N_("The start offset in the backend device"), N_("SECTORS") },
- { "skip", 'p', POPT_ARG_STRING, &popt_tmp, 3, N_("How many sectors of the encrypted data to skip at the beginning"), N_("SECTORS") },
- { "readonly", 'r', POPT_ARG_NONE, &opt_readonly, 0, N_("Create a readonly mapping"), NULL },
- { "iter-time", 'i', POPT_ARG_INT, &opt_iteration_time, 0, N_("PBKDF2 iteration time for LUKS (in ms)"),
- N_("msecs") },
- { "batch-mode", 'q', POPT_ARG_NONE, &opt_batch_mode, 0, N_("Do not ask for confirmation"), NULL },
- { "version", '\0', POPT_ARG_NONE, &opt_version_mode, 0, N_("Print package version"), NULL },
- { "timeout", 't', POPT_ARG_INT, &opt_timeout, 0, N_("Timeout for interactive passphrase prompt (in seconds)"), N_("secs") },
- { "tries", 'T', POPT_ARG_INT, &opt_tries, 0, N_("How often the input of the passphrase can be retried"), NULL },
- { "align-payload", '\0', POPT_ARG_INT, &opt_align_payload, 0, N_("Align payload at <n> sector boundaries - for luksFormat"), N_("SECTORS") },
- { "non-exclusive", '\0', POPT_ARG_NONE, &opt_non_exclusive, 0, N_("Allows non-exclusive access for luksOpen, WARNING see manpage."), NULL },
+ { NULL, '\0', POPT_ARG_INCLUDE_TABLE, popt_help_options, 0, N_("Help options:"), NULL },
+ { "version", '\0', POPT_ARG_NONE, &opt_version_mode, 0, N_("Print package version"), NULL },
+ { "verbose", 'v', POPT_ARG_NONE, &opt_verbose, 0, N_("Shows more detailed error messages"), NULL },
+ { "debug", '\0', POPT_ARG_NONE, &opt_debug, 0, N_("Show debug messages"), NULL },
+ { "cipher", 'c', POPT_ARG_STRING, &opt_cipher, 0, N_("The cipher used to encrypt the disk (see /proc/crypto)"), NULL },
+ { "hash", 'h', POPT_ARG_STRING, &opt_hash, 0, N_("The hash used to create the encryption key from the passphrase"), NULL },
+ { "verify-passphrase", 'y', POPT_ARG_NONE, &opt_verify_passphrase, 0, N_("Verifies the passphrase by asking for it twice"), NULL },
+ { "key-file", 'd', POPT_ARG_STRING, &opt_key_file, 0, N_("Read the key from a file."), NULL },
+ { "master-key-file", '\0', POPT_ARG_STRING, &opt_master_key_file, 0, N_("Read the volume (master) key from file."), NULL },
+ { "dump-master-key", '\0', POPT_ARG_NONE, &opt_dump_master_key, 0, N_("Dump volume (master) key instead of keyslots info."), NULL },
+ { "key-size", 's', POPT_ARG_INT, &opt_key_size, 0, N_("The size of the encryption key"), N_("BITS") },
+ { "keyfile-size", 'l', POPT_ARG_LONG, &opt_keyfile_size, 0, N_("Limits the read from keyfile"), N_("bytes") },
+ { "keyfile-offset", '\0', POPT_ARG_LONG, &opt_keyfile_offset, 0, N_("Number of bytes to skip in keyfile"), N_("bytes") },
+ { "new-keyfile-size", '\0', POPT_ARG_LONG, &opt_new_keyfile_size, 0, N_("Limits the read from newly added keyfile"), N_("bytes") },
+ { "new-keyfile-offset",'\0', POPT_ARG_LONG, &opt_new_keyfile_offset, 0, N_("Number of bytes to skip in newly added keyfile"), N_("bytes") },
+ { "key-slot", 'S', POPT_ARG_INT, &opt_key_slot, 0, N_("Slot number for new key (default is first free)"), NULL },
+ { "size", 'b', POPT_ARG_STRING, &popt_tmp, 1, N_("The size of the device"), N_("SECTORS") },
+ { "offset", 'o', POPT_ARG_STRING, &popt_tmp, 2, N_("The start offset in the backend device"), N_("SECTORS") },
+ { "skip", 'p', POPT_ARG_STRING, &popt_tmp, 3, N_("How many sectors of the encrypted data to skip at the beginning"), N_("SECTORS") },
+ { "readonly", 'r', POPT_ARG_NONE, &opt_readonly, 0, N_("Create a readonly mapping"), NULL },
+ { "iter-time", 'i', POPT_ARG_INT, &opt_iteration_time, 0, N_("PBKDF2 iteration time for LUKS (in ms)"), N_("msecs") },
+ { "batch-mode", 'q', POPT_ARG_NONE, &opt_batch_mode, 0, N_("Do not ask for confirmation"), NULL },
+ { "timeout", 't', POPT_ARG_INT, &opt_timeout, 0, N_("Timeout for interactive passphrase prompt (in seconds)"), N_("secs") },
+ { "tries", 'T', POPT_ARG_INT, &opt_tries, 0, N_("How often the input of the passphrase can be retried"), NULL },
+ { "align-payload", '\0', POPT_ARG_INT, &opt_align_payload, 0, N_("Align payload at <n> sector boundaries - for luksFormat"), N_("SECTORS") },
+ { "header-backup-file",'\0', POPT_ARG_STRING, &opt_header_backup_file, 0, N_("File with LUKS header and keyslots backup."), NULL },
+ { "use-random", '\0', POPT_ARG_NONE, &opt_random, 0, N_("Use /dev/random for generating volume key."), NULL },
+ { "use-urandom", '\0', POPT_ARG_NONE, &opt_urandom, 0, N_("Use /dev/urandom for generating volume key."), NULL },
+ { "shared", '\0', POPT_ARG_NONE, &opt_shared, 0, N_("Share device with another non-overlapping crypt segment."), NULL },
+ { "uuid", '\0', POPT_ARG_STRING, &opt_uuid, 0, N_("UUID for device to use."), NULL },
+ { "allow-discards", '\0', POPT_ARG_NONE, &opt_allow_discards, 0, N_("Allow discards (aka TRIM) requests for device."), NULL },
+ { "header", '\0', POPT_ARG_STRING, &opt_header_device, 0, N_("Device or file with separated LUKS header."), NULL },
+ { "without-activation",'\0', POPT_ARG_NONE, &opt_without_activation, 0, N_("Do not activate device, just check passphrase."), NULL },
POPT_TABLEEND
};
poptContext popt_context;
struct action_type *action;
- char *aname;
+ const char *aname;
int r;
const char *null_action_argv[] = {NULL};
+ crypt_set_log_callback(NULL, _log, NULL);
+
setlocale(LC_ALL, "");
- bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
- textdomain(GETTEXT_PACKAGE);
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE);
+
+ crypt_fips_self_check(NULL);
- popt_context = poptGetContext(PACKAGE, argc, (const char **)argv,
- popt_options, 0);
+ popt_context = poptGetContext(PACKAGE, argc, argv, popt_options, 0);
poptSetOtherOptionHelp(popt_context,
- N_("[OPTION...] <action> <action-specific>]"));
+ N_("[OPTION...] <action> <action-specific>"));
while((r = poptGetNextOpt(popt_context)) > 0) {
unsigned long long ull_value;
char *endp;
+ errno = 0;
ull_value = strtoull(popt_tmp, &endp, 0);
- if (*endp || !*popt_tmp)
+ if (*endp || !*popt_tmp ||
+ (errno == ERANGE && ull_value == ULLONG_MAX) ||
+ (errno != 0 && ull_value == 0))
r = POPT_ERROR_BADNUMBER;
switch(r) {
break;
case 3:
opt_skip = ull_value;
+ opt_skip_valid = 1;
break;
}
}
if (r < -1)
- usage(popt_context, 1, poptStrerror(r),
+ usage(popt_context, EXIT_FAILURE, poptStrerror(r),
poptBadOption(popt_context, POPT_BADOPTION_NOALIAS));
if (opt_version_mode) {
- printf("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
- exit(0);
+ log_std("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
+ poptFreeContext(popt_context);
+ exit(EXIT_SUCCESS);
}
-
- if (opt_key_size % 8)
- usage(popt_context, 1,
- _("Key size must be a multiple of 8 bits"),
- poptGetInvocationName(popt_context));
-
- if (!(aname = (char *)poptGetArg(popt_context)))
- usage(popt_context, 1, _("Argument <action> missing."),
+
+ 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, 1, _("Unknown action."),
+ usage(popt_context, EXIT_FAILURE, _("Unknown action."),
poptGetInvocationName(popt_context));
action_argc = 0;
action_argv = poptGetArgs(popt_context);
/* Make return values of poptGetArgs more consistent in case of remaining argc = 0 */
- if(!action_argv)
+ if(!action_argv)
action_argv = null_action_argv;
-
+
/* Count args, somewhat unnice, change? */
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, 1, buf,
+ usage(popt_context, EXIT_FAILURE, buf,
+ poptGetInvocationName(popt_context));
+ }
+
+ /* FIXME: rewrite this from scratch */
+
+ if (opt_shared && strcmp(aname, "create"))
+ usage(popt_context, EXIT_FAILURE,
+ _("Option --shared is allowed only for create operation.\n"),
+ poptGetInvocationName(popt_context));
+
+ if (opt_allow_discards &&
+ strcmp(aname, "luksOpen") &&
+ strcmp(aname, "create") &&
+ strcmp(aname, "loopaesOpen"))
+ usage(popt_context, EXIT_FAILURE,
+ _("Option --allow-discards is allowed only for luksOpen, loopaesOpen and create operation.\n"),
+ poptGetInvocationName(popt_context));
+
+ if (opt_key_size &&
+ strcmp(aname, "luksFormat") &&
+ strcmp(aname, "create") &&
+ strcmp(aname, "loopaesOpen"))
+ usage(popt_context, EXIT_FAILURE,
+ _("Option --key-size is allowed only for luksFormat, create and loopaesOpen.\n"
+ "To limit read from keyfile use --keyfile-size=(bytes)."),
+ poptGetInvocationName(popt_context));
+
+ if (opt_without_activation &&
+ strcmp(aname, "luksOpen"))
+ usage(popt_context, EXIT_FAILURE,
+ _("Option --without-activation is allowed only for luksOpen.\n"),
+ poptGetInvocationName(popt_context));
+
+ if (opt_key_size % 8)
+ usage(popt_context, EXIT_FAILURE,
+ _("Key size must be a multiple of 8 bits"),
+ poptGetInvocationName(popt_context));
+
+ if (!strcmp(aname, "luksKillSlot") && action_argc > 1)
+ opt_key_slot = atoi(action_argv[1]);
+ if (opt_key_slot != CRYPT_ANY_SLOT &&
+ (opt_key_slot < 0 || opt_key_slot >= crypt_keyslot_max(CRYPT_LUKS1)))
+ usage(popt_context, EXIT_FAILURE, _("Key slot is invalid."),
+ poptGetInvocationName(popt_context));
+
+ if ((!strcmp(aname, "luksRemoveKey") ||
+ !strcmp(aname, "luksFormat")) &&
+ action_argc > 1) {
+ if (opt_key_file)
+ log_err(_("Option --key-file takes precedence over specified key file argument.\n"));
+ else
+ opt_key_file = action_argv[1];
+ }
+
+ if (opt_keyfile_size < 0 || opt_new_keyfile_size < 0 || opt_key_size < 0 ||
+ opt_keyfile_offset < 0 || opt_new_keyfile_offset < 0)
+ usage(popt_context, EXIT_FAILURE,
+ _("Negative number for option not permitted."),
+ poptGetInvocationName(popt_context));
+
+ if (opt_random && opt_urandom)
+ usage(popt_context, EXIT_FAILURE, _("Only one of --use-[u]random options is allowed."),
+ poptGetInvocationName(popt_context));
+
+ if ((opt_random || opt_urandom) && strcmp(aname, "luksFormat"))
+ usage(popt_context, EXIT_FAILURE, _("Option --use-[u]random is allowed only for luksFormat."),
poptGetInvocationName(popt_context));
- }
- return action->handler(action->arg);
-}
-// Local Variables:
-// c-basic-offset: 8
-// indent-tabs-mode: nil
-// End:
+ if (opt_uuid && strcmp(aname, "luksFormat") && strcmp(aname, "luksUUID"))
+ usage(popt_context, EXIT_FAILURE, _("Option --uuid is allowed only for luksFormat and luksUUID."),
+ poptGetInvocationName(popt_context));
+
+ if (opt_align_payload && strcmp(aname, "luksFormat"))
+ usage(popt_context, EXIT_FAILURE, _("Option --align-payload is allowed only for luksFormat."),
+ poptGetInvocationName(popt_context));
+
+ if (opt_skip && strcmp(aname, "create") && strcmp(aname, "loopaesOpen"))
+ usage(popt_context, EXIT_FAILURE,
+ _("Option --skip is supported only for create and loopaesOpen commands.\n"),
+ poptGetInvocationName(popt_context));
+
+ if (opt_offset && strcmp(aname, "create") && strcmp(aname, "loopaesOpen"))
+ usage(popt_context, EXIT_FAILURE,
+ _("Option --offset is supported only for create and loopaesOpen commands.\n"),
+ poptGetInvocationName(popt_context));
+
+ if (opt_debug) {
+ opt_verbose = 1;
+ crypt_set_debug_level(-1);
+ _dbg_version_and_cmd(argc, argv);
+ }
+
+ r = run_action(action);
+ poptFreeContext(popt_context);
+ return r;
+}
projects / platform / upstream / cryptsetup.git / blobdiff