diff options
Diffstat (limited to '')
| -rw-r--r-- | src/integritysetup.c | 744 |
1 files changed, 744 insertions, 0 deletions
diff --git a/src/integritysetup.c b/src/integritysetup.c new file mode 100644 index 0000000..61b166a --- /dev/null +++ b/src/integritysetup.c @@ -0,0 +1,744 @@ +/* + * integritysetup - setup integrity protected volumes for dm-integrity + * + * Copyright (C) 2017-2021 Red Hat, Inc. All rights reserved. + * Copyright (C) 2017-2021 Milan Broz + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "cryptsetup.h" +#include <uuid/uuid.h> + +#define PACKAGE_INTEGRITY "integritysetup" + +#define DEFAULT_ALG_NAME "crc32c" + +static char *opt_data_device = NULL; +static char *opt_integrity = NULL; /* DEFAULT_ALG_NAME */ +static char *opt_integrity_key_file = NULL; +static char *opt_journal_integrity = NULL; /* none */ +static char *opt_journal_integrity_key_file = NULL; +static char *opt_journal_crypt = NULL; /* none */ +static char *opt_journal_crypt_key_file = NULL; + +/* helper strings converted to uint64_t later */ +static char *opt_journal_size_str = NULL; + +static uint64_t opt_journal_size = 0; + +static int opt_interleave_sectors = 0; +static int opt_journal_watermark = 0; +static int opt_bitmap_sectors_per_bit = 0; +static int opt_journal_commit_time = 0; +static int opt_bitmap_flush_time = 0; +static int opt_tag_size = 0; +static int opt_sector_size = 0; +static int opt_buffer_sectors = 0; +static int opt_no_wipe = 0; +static int opt_integrity_key_size = 0; +static int opt_journal_integrity_key_size = 0; +static int opt_journal_crypt_key_size = 0; +static int opt_integrity_nojournal = 0; +static int opt_integrity_recovery = 0; +static int opt_integrity_bitmap = 0; +static int opt_integrity_legacy_padding = 0; +static int opt_integrity_legacy_hmac = 0; +static int opt_integrity_legacy_recalculate = 0; +static int opt_integrity_recalculate = 0; +static int opt_allow_discards = 0; + +static const char *integrity_alg = DEFAULT_ALG_NAME; +static const char **action_argv; +static int action_argc; + +void tools_cleanup(void) +{ + FREE_AND_NULL(opt_data_device); + FREE_AND_NULL(opt_integrity); + FREE_AND_NULL(opt_integrity_key_file); + FREE_AND_NULL(opt_journal_integrity); + FREE_AND_NULL(opt_journal_integrity_key_file); + FREE_AND_NULL(opt_journal_crypt); + FREE_AND_NULL(opt_journal_crypt_key_file); + FREE_AND_NULL(opt_journal_size_str); +} + +// FIXME: move this to tools and handle EINTR +static int _read_mk(const char *file, char **key, int keysize) +{ + int fd; + + if (keysize <= 0 || keysize > (DEFAULT_INTEGRITY_KEYFILE_SIZE_MAXKB * 1024)) { + log_err(_("Invalid key size. Maximum is %u bytes."), DEFAULT_INTEGRITY_KEYFILE_SIZE_MAXKB * 1024); + return -EINVAL; + } + + *key = crypt_safe_alloc(keysize); + if (!*key) + return -ENOMEM; + + fd = open(file, O_RDONLY); + if (fd == -1) { + log_err(_("Cannot read keyfile %s."), file); + goto fail; + } + if ((read(fd, *key, keysize) != keysize)) { + log_err(_("Cannot read %d bytes from keyfile %s."), keysize, file); + close(fd); + goto fail; + } + close(fd); + return 0; +fail: + crypt_safe_free(*key); + *key = NULL; + return -EINVAL; +} + +static int _read_keys(char **integrity_key, struct crypt_params_integrity *params) +{ + char *int_key = NULL, *journal_integrity_key = NULL, *journal_crypt_key = NULL; + int r; + + if (integrity_key && opt_integrity_key_file) { + r = _read_mk(opt_integrity_key_file, &int_key, opt_integrity_key_size); + if (r < 0) + return r; + params->integrity_key_size = opt_integrity_key_size; + } + + if (opt_journal_integrity_key_file) { + r = _read_mk(opt_journal_integrity_key_file, &journal_integrity_key, opt_journal_integrity_key_size); + if (r < 0) { + crypt_safe_free(int_key); + return r; + } + params->journal_integrity_key = journal_integrity_key; + params->journal_integrity_key_size = opt_journal_integrity_key_size; + } + + if (opt_journal_crypt_key_file) { + r = _read_mk(opt_journal_crypt_key_file, &journal_crypt_key, opt_journal_crypt_key_size); + if (r < 0) { + crypt_safe_free(int_key); + crypt_safe_free(journal_integrity_key); + return r; + } + params->journal_crypt_key = journal_crypt_key; + params->journal_crypt_key_size = opt_journal_crypt_key_size; + } + + if (integrity_key) + *integrity_key = int_key; + + return 0; +} + +static int _wipe_data_device(struct crypt_device *cd, const char *integrity_key) +{ + char tmp_name[64], tmp_path[128], tmp_uuid[40]; + uuid_t tmp_uuid_bin; + int r; + + if (!opt_batch_mode) + log_std(_("Wiping device to initialize integrity checksum.\n" + "You can interrupt this by pressing CTRL+c " + "(rest of not wiped device will contain invalid checksum).\n")); + + /* Activate the device a temporary one */ + uuid_generate(tmp_uuid_bin); + uuid_unparse(tmp_uuid_bin, tmp_uuid); + if (snprintf(tmp_name, sizeof(tmp_name), "temporary-cryptsetup-%s", tmp_uuid) < 0) + return -EINVAL; + if (snprintf(tmp_path, sizeof(tmp_path), "%s/%s", crypt_get_dir(), tmp_name) < 0) + return -EINVAL; + + r = crypt_activate_by_volume_key(cd, tmp_name, integrity_key, + opt_integrity_key_size, CRYPT_ACTIVATE_PRIVATE | CRYPT_ACTIVATE_NO_JOURNAL); + if (r < 0) + return r; + + /* Wipe the device */ + set_int_handler(0); + r = crypt_wipe(cd, tmp_path, CRYPT_WIPE_ZERO, 0, 0, DEFAULT_WIPE_BLOCK, + 0, &tools_wipe_progress, NULL); + if (crypt_deactivate(cd, tmp_name)) + log_err(_("Cannot deactivate temporary device %s."), tmp_path); + set_int_block(0); + + return r; +} + +static int action_format(int arg) +{ + struct crypt_device *cd = NULL; + struct crypt_params_integrity params = { + .journal_size = opt_journal_size, + .interleave_sectors = opt_interleave_sectors, + /* in bitmap mode we have to overload these values... */ + .journal_watermark = opt_integrity_bitmap ? opt_bitmap_sectors_per_bit : opt_journal_watermark, + .journal_commit_time = opt_integrity_bitmap ? opt_bitmap_flush_time : opt_journal_commit_time, + .buffer_sectors = opt_buffer_sectors, + .tag_size = opt_tag_size, + .sector_size = opt_sector_size ?: SECTOR_SIZE, + }, params2; + char integrity[MAX_CIPHER_LEN], journal_integrity[MAX_CIPHER_LEN], journal_crypt[MAX_CIPHER_LEN]; + char *integrity_key = NULL, *msg = NULL; + int r; + size_t signatures; + + r = crypt_parse_hash_integrity_mode(integrity_alg, integrity); + if (r < 0) { + log_err(_("No known integrity specification pattern detected.")); + return r; + } + params.integrity = integrity; + + if (opt_journal_integrity) { + r = crypt_parse_hash_integrity_mode(opt_journal_integrity, journal_integrity); + if (r < 0) { + log_err(_("No known integrity specification pattern detected.")); + return r; + } + params.journal_integrity = journal_integrity; + } + + if (opt_journal_crypt) { + r = crypt_parse_hash_integrity_mode(opt_journal_crypt, journal_crypt); + if (r < 0) { + log_err(_("No known integrity specification pattern detected.")); + return r; + } + params.journal_crypt = journal_crypt; + } + + r = _read_keys(&integrity_key, ¶ms); + if (r) + goto out; + + r = crypt_init_data_device(&cd, action_argv[0], opt_data_device); + if (r < 0) + goto out; + + r = asprintf(&msg, _("This will overwrite data on %s irrevocably."), action_argv[0]); + if (r == -1) { + r = -ENOMEM; + goto out; + } + + r = yesDialog(msg, _("Operation aborted.\n")) ? 0 : -EINVAL; + free(msg); + if (r < 0) + goto out; + + r = tools_detect_signatures(action_argv[0], 0, &signatures); + if (r < 0) + goto out; + + /* Signature candidates found */ + if (signatures && ((r = tools_wipe_all_signatures(action_argv[0])) < 0)) + goto out; + + if (opt_integrity_legacy_padding) + crypt_set_compatibility(cd, CRYPT_COMPAT_LEGACY_INTEGRITY_PADDING); + + if (opt_integrity_legacy_hmac) + crypt_set_compatibility(cd, CRYPT_COMPAT_LEGACY_INTEGRITY_HMAC); + + r = crypt_format(cd, CRYPT_INTEGRITY, NULL, NULL, NULL, NULL, 0, ¶ms); + if (r < 0) /* FIXME: call wipe signatures again */ + goto out; + + if (!opt_batch_mode && !crypt_get_integrity_info(cd, ¶ms2)) + log_std(_("Formatted with tag size %u, internal integrity %s.\n"), + params2.tag_size, params2.integrity); + + if (!opt_no_wipe) + r = _wipe_data_device(cd, integrity_key); +out: + crypt_safe_free(integrity_key); + crypt_safe_free(CONST_CAST(void*)params.journal_integrity_key); + crypt_safe_free(CONST_CAST(void*)params.journal_crypt_key); + crypt_free(cd); + return r; +} + +static int action_open(int arg) +{ + struct crypt_device *cd = NULL; + struct crypt_params_integrity params = { + /* in bitmap mode we have to overload these values... */ + .journal_watermark = opt_integrity_bitmap ? opt_bitmap_sectors_per_bit : opt_journal_watermark, + .journal_commit_time = opt_integrity_bitmap ? opt_bitmap_flush_time : opt_journal_commit_time, + .buffer_sectors = opt_buffer_sectors, + }; + uint32_t activate_flags = 0; + char integrity[MAX_CIPHER_LEN], journal_integrity[MAX_CIPHER_LEN], journal_crypt[MAX_CIPHER_LEN]; + char *integrity_key = NULL; + int r; + + r = crypt_parse_hash_integrity_mode(integrity_alg, integrity); + if (r < 0) { + log_err(_("No known integrity specification pattern detected.")); + return r; + } + params.integrity = integrity; + + if (opt_journal_integrity) { + r = crypt_parse_hash_integrity_mode(opt_journal_integrity, journal_integrity); + if (r < 0) { + log_err(_("No known integrity specification pattern detected.")); + return r; + + } + params.journal_integrity = journal_integrity; + } + + if (opt_journal_crypt) { + r = crypt_parse_hash_integrity_mode(opt_journal_crypt, journal_crypt); + if (r < 0) { + log_err(_("No known integrity specification pattern detected.")); + return r; + } + params.journal_crypt = journal_crypt; + } + + if (opt_integrity_nojournal || opt_integrity_bitmap) + activate_flags |= CRYPT_ACTIVATE_NO_JOURNAL; + if (opt_integrity_recovery) + activate_flags |= CRYPT_ACTIVATE_RECOVERY; + if (opt_integrity_bitmap) + activate_flags |= CRYPT_ACTIVATE_NO_JOURNAL_BITMAP; + + if (opt_integrity_recalculate || opt_integrity_legacy_recalculate) + activate_flags |= CRYPT_ACTIVATE_RECALCULATE; + if (opt_allow_discards) + activate_flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS; + + r = _read_keys(&integrity_key, ¶ms); + if (r) + goto out; + + if ((r = crypt_init_data_device(&cd, action_argv[0], opt_data_device))) + goto out; + + r = crypt_load(cd, CRYPT_INTEGRITY, ¶ms); + if (r) + goto out; + + if (opt_integrity_legacy_recalculate) + crypt_set_compatibility(cd, CRYPT_COMPAT_LEGACY_INTEGRITY_RECALC); + + r = crypt_activate_by_volume_key(cd, action_argv[1], integrity_key, + opt_integrity_key_size, activate_flags); +out: + crypt_safe_free(integrity_key); + crypt_safe_free(CONST_CAST(void*)params.journal_integrity_key); + crypt_safe_free(CONST_CAST(void*)params.journal_crypt_key); + crypt_free(cd); + return r; +} + +static int action_close(int arg) +{ + struct crypt_device *cd = NULL; + int 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) +{ + crypt_status_info ci; + struct crypt_active_device cad; + struct crypt_params_integrity ip = {}; + struct crypt_device *cd = NULL; + char *backing_file; + const char *device, *metadata_device; + int path = 0, r = 0; + + /* perhaps a path, not a dm device name */ + if (strchr(action_argv[0], '/')) + path = 1; + + ci = crypt_status(NULL, action_argv[0]); + switch (ci) { + case CRYPT_INVALID: + r = -EINVAL; + break; + case CRYPT_INACTIVE: + if (path) + log_std("%s is inactive.\n", action_argv[0]); + else + log_std("%s/%s is inactive.\n", crypt_get_dir(), action_argv[0]); + r = -ENODEV; + break; + case CRYPT_ACTIVE: + case CRYPT_BUSY: + if (path) + log_std("%s is active%s.\n", action_argv[0], + ci == CRYPT_BUSY ? " and is in use" : ""); + else + log_std("%s/%s is active%s.\n", crypt_get_dir(), action_argv[0], + ci == CRYPT_BUSY ? " and is in use" : ""); + + r = crypt_init_by_name_and_header(&cd, action_argv[0], NULL); + if (r < 0) + goto out; + + log_std(" type: %s\n", crypt_get_type(cd) ?: "n/a"); + + r = crypt_get_active_device(cd, action_argv[0], &cad); + if (r < 0) + goto out; + + /* Print only INTEGRITY (and LUKS2 with integrity) info */ + r = crypt_get_integrity_info(cd, &ip); + if (r < 0) + goto out; + + log_std(" tag size: %u\n", ip.tag_size); + log_std(" integrity: %s\n", ip.integrity ?: "(none)"); + device = crypt_get_device_name(cd); + metadata_device = crypt_get_metadata_device_name(cd); + log_std(" device: %s%s\n", device, metadata_device ? " (detached)" : ""); + if ((backing_file = crypt_loop_backing_file(device))) { + log_std(" loop: %s\n", backing_file); + free(backing_file); + } + if (metadata_device) { + log_std(" metadata device: %s\n", metadata_device); + if ((backing_file = crypt_loop_backing_file(metadata_device))) { + log_std(" loop: %s\n", backing_file); + free(backing_file); + } + } + log_std(" sector size: %u bytes\n", crypt_get_sector_size(cd)); + log_std(" interleave sectors: %u\n", ip.interleave_sectors); + log_std(" size: %" PRIu64 " sectors\n", cad.size); + log_std(" mode: %s%s\n", + cad.flags & CRYPT_ACTIVATE_READONLY ? "readonly" : "read/write", + cad.flags & CRYPT_ACTIVATE_RECOVERY ? " recovery" : ""); + log_std(" failures: %" PRIu64 "\n", + crypt_get_active_integrity_failures(cd, action_argv[0])); + if (cad.flags & CRYPT_ACTIVATE_NO_JOURNAL_BITMAP) { + log_std(" bitmap 512-byte sectors per bit: %u\n", ip.journal_watermark); + log_std(" bitmap flush interval: %u ms\n", ip.journal_commit_time); + } if (cad.flags & CRYPT_ACTIVATE_NO_JOURNAL) { + log_std(" journal: not active\n"); + } else { + log_std(" journal size: %" PRIu64 " bytes\n", ip.journal_size); + log_std(" journal watermark: %u%%\n", ip.journal_watermark); + log_std(" journal commit time: %u ms\n", ip.journal_commit_time); + if (ip.journal_integrity) + log_std(" journal integrity MAC: %s\n", ip.journal_integrity); + if (ip.journal_crypt) + log_std(" journal encryption: %s\n", ip.journal_crypt); + } + if (cad.flags & (CRYPT_ACTIVATE_ALLOW_DISCARDS)) + log_std(" flags: %s\n", + (cad.flags & CRYPT_ACTIVATE_ALLOW_DISCARDS) ? "discards " : ""); + } +out: + crypt_free(cd); + if (r == -ENOTSUP) + r = 0; + return r; + return -EINVAL; +} + +static int action_dump(int arg) +{ + struct crypt_device *cd = NULL; + struct crypt_params_integrity params = {}; + int r; + + if ((r = crypt_init(&cd, action_argv[0]))) + return r; + + r = crypt_load(cd, CRYPT_INTEGRITY, ¶ms); + if (!r) + crypt_dump(cd); + + crypt_free(cd); + return r; +} + +static struct action_type { + const char *type; + int (*handler)(int); + int required_action_argc; + const char *arg_desc; + const char *desc; +} action_types[] = { + { "format", action_format, 1, N_("<integrity_device>"),N_("format device") }, + { "open", action_open, 2, N_("<integrity_device> <name>"),N_("open device as <name>") }, + { "close", action_close, 1, N_("<name>"),N_("close device (remove mapping)") }, + { "status", action_status, 1, N_("<name>"),N_("show active device status") }, + { "dump", action_dump, 1, N_("<integrity_device>"),N_("show on-disk information") }, + { NULL, NULL, 0, NULL, NULL } +}; + +static void help(poptContext popt_context, + enum poptCallbackReason reason __attribute__((unused)), + struct poptOption *key, + const char *arg __attribute__((unused)), + void *data __attribute__((unused))) +{ + struct action_type *action; + + if (key->shortName == '?') { + log_std("%s %s\n", PACKAGE_INTEGRITY, PACKAGE_VERSION); + poptPrintHelp(popt_context, stdout, 0); + log_std(_("\n" + "<action> is one of:\n")); + for(action = action_types; action->type; action++) + log_std("\t%s %s - %s\n", action->type, _(action->arg_desc), _(action->desc)); + log_std(_("\n" + "<name> is the device to create under %s\n" + "<integrity_device> is the device containing data with integrity tags\n"), + crypt_get_dir()); + + log_std(_("\nDefault compiled-in dm-integrity parameters:\n" + "\tChecksum algorithm: %s\n" + "\tMaximum keyfile size: %dkB\n"), + DEFAULT_ALG_NAME, DEFAULT_INTEGRITY_KEYFILE_SIZE_MAXKB); + tools_cleanup(); + poptFreeContext(popt_context); + exit(EXIT_SUCCESS); + } else if (key->shortName == 'V') { + log_std("%s %s\n", PACKAGE_INTEGRITY, PACKAGE_VERSION); + tools_cleanup(); + poptFreeContext(popt_context); + exit(EXIT_SUCCESS); + } else + usage(popt_context, EXIT_SUCCESS, NULL, NULL); +} + +static int run_action(struct action_type *action) +{ + int r; + + log_dbg("Running command %s.", action->type); + + r = action->handler(0); + + show_status(r); + return translate_errno(r); +} + +int main(int argc, const char **argv) +{ + static const char *null_action_argv[] = {NULL}; + static struct poptOption popt_help_options[] = { + { NULL, '\0', POPT_ARG_CALLBACK, help, 0, NULL, NULL }, + { "help", '?', POPT_ARG_NONE, NULL, 0, N_("Show this help message"), NULL }, + { "usage", '\0', POPT_ARG_NONE, NULL, 0, N_("Display brief usage"), NULL }, + { "version",'V', POPT_ARG_NONE, NULL, 0, N_("Print package version"), NULL }, + POPT_TABLEEND + }; + static struct poptOption popt_options[] = { + { NULL, '\0', POPT_ARG_INCLUDE_TABLE, popt_help_options, 0, N_("Help options:"), NULL }, + { "verbose", 'v', POPT_ARG_NONE, &opt_verbose, 0, N_("Shows more detailed error messages"), NULL }, + { "debug", '\0', POPT_ARG_NONE, &opt_debug, 0, N_("Show debug messages"), NULL }, + { "batch-mode", 'q', POPT_ARG_NONE, &opt_batch_mode, 0, N_("Do not ask for confirmation"), NULL }, + { "progress-frequency", '\0', POPT_ARG_INT, &opt_progress_frequency, 0, N_("Progress line update (in seconds)"), N_("secs") }, + { "no-wipe", '\0', POPT_ARG_NONE, &opt_no_wipe, 0, N_("Do not wipe device after format"), NULL }, + + { "data-device", '\0', POPT_ARG_STRING, &opt_data_device, 0, N_("Path to data device (if separated)"), N_("path") }, + + { "journal-size", 'j', POPT_ARG_STRING,&opt_journal_size_str, 0, N_("Journal size"), N_("bytes") }, + { "interleave-sectors", '\0', POPT_ARG_INT, &opt_interleave_sectors, 0, N_("Interleave sectors"), N_("SECTORS") }, + { "journal-watermark", '\0', POPT_ARG_INT, &opt_journal_watermark, 0, N_("Journal watermark"),N_("percent") }, + { "journal-commit-time",'\0', POPT_ARG_INT, &opt_journal_commit_time,0, N_("Journal commit time"), N_("ms") }, + { "bitmap-sectors-per-bit",'\0', POPT_ARG_INT,&opt_bitmap_sectors_per_bit, 0, N_("Number of 512-byte sectors per bit (bitmap mode)."), NULL }, + { "bitmap-flush-time", '\0', POPT_ARG_INT, &opt_bitmap_flush_time, 0, N_("Bitmap mode flush time"), N_("ms") }, + { "tag-size", 't', POPT_ARG_INT, &opt_tag_size, 0, N_("Tag size (per-sector)"), N_("bytes") }, + { "sector-size", 's', POPT_ARG_INT, &opt_sector_size, 0, N_("Sector size"), N_("bytes") }, + { "buffer-sectors", '\0', POPT_ARG_INT, &opt_buffer_sectors, 0, N_("Buffers size"), N_("SECTORS") }, + + { "integrity", 'I', POPT_ARG_STRING, &opt_integrity, 0, N_("Data integrity algorithm"), NULL }, + { "integrity-key-size", '\0', POPT_ARG_INT, &opt_integrity_key_size, 0, N_("The size of the data integrity key"), N_("BITS") }, + { "integrity-key-file", '\0', POPT_ARG_STRING, &opt_integrity_key_file, 0, N_("Read the integrity key from a file"), NULL }, + + { "journal-integrity", '\0', POPT_ARG_STRING, &opt_journal_integrity, 0, N_("Journal integrity algorithm"), NULL }, + { "journal-integrity-key-size",'\0', POPT_ARG_INT, &opt_journal_integrity_key_size,0, N_("The size of the journal integrity key"), N_("BITS") }, + { "journal-integrity-key-file",'\0', POPT_ARG_STRING, &opt_journal_integrity_key_file,0, N_("Read the journal integrity key from a file"), NULL }, + + { "journal-crypt", '\0', POPT_ARG_STRING, &opt_journal_crypt, 0, N_("Journal encryption algorithm"), NULL }, + { "journal-crypt-key-size", '\0', POPT_ARG_INT, &opt_journal_crypt_key_size, 0, N_("The size of the journal encryption key"), N_("BITS") }, + { "journal-crypt-key-file", '\0', POPT_ARG_STRING, &opt_journal_crypt_key_file, 0, N_("Read the journal encryption key from a file"), NULL }, + + { "integrity-no-journal", 'D', POPT_ARG_NONE, &opt_integrity_nojournal, 0, N_("Disable journal for integrity device"), NULL }, + { "integrity-recovery-mode", 'R', POPT_ARG_NONE, &opt_integrity_recovery, 0, N_("Recovery mode (no journal, no tag checking)"), NULL }, + { "integrity-bitmap-mode", 'B', POPT_ARG_NONE, &opt_integrity_bitmap, 0, N_("Use bitmap to track changes and disable journal for integrity device"), NULL }, + { "integrity-recalculate", '\0', POPT_ARG_NONE, &opt_integrity_recalculate, 0, N_("Recalculate initial tags automatically."), NULL }, + { "integrity-legacy-padding", '\0', POPT_ARG_NONE, &opt_integrity_legacy_padding, 0, N_("Use inefficient legacy padding (old kernels)"), NULL }, + + { "integrity-legacy-hmac", '\0', POPT_ARG_NONE, &opt_integrity_legacy_hmac, 0, N_("Do not protect superblock with HMAC (old kernels)"), NULL }, + { "integrity-legacy-recalculate",'\0',POPT_ARG_NONE, &opt_integrity_legacy_recalculate, 0, N_("Allow recalculating of volumes with HMAC keys (old kernels)"), NULL }, + + { "allow-discards", '\0', POPT_ARG_NONE, &opt_allow_discards, 0, N_("Allow discards (aka TRIM) requests for device"), NULL }, + POPT_TABLEEND + }; + poptContext popt_context; + struct action_type *action; + const char *aname; + int r; + + crypt_set_log_callback(NULL, tool_log, NULL); + + setlocale(LC_ALL, ""); + bindtextdomain(PACKAGE, LOCALEDIR); + textdomain(PACKAGE); + + popt_context = poptGetContext("integrity", argc, argv, popt_options, 0); + poptSetOtherOptionHelp(popt_context, + _("[OPTION...] <action> <action-specific>")); + + + while ((r = poptGetNextOpt(popt_context)) >= 0) { + } + + if (r < -1) + usage(popt_context, EXIT_FAILURE, poptStrerror(r), + poptBadOption(popt_context, POPT_BADOPTION_NOALIAS)); + + if (!(aname = poptGetArg(popt_context))) + usage(popt_context, EXIT_FAILURE, _("Argument <action> missing."), + poptGetInvocationName(popt_context)); + + action_argc = 0; + action_argv = poptGetArgs(popt_context); + /* Make return values of poptGetArgs more consistent in case of remaining argc = 0 */ + if (!action_argv) + action_argv = null_action_argv; + + /* Count args, somewhat unnice, change? */ + while (action_argv[action_argc] != NULL) + action_argc++; + + /* Handle aliases */ + if (!strcmp(aname, "create") && action_argc > 1) { + /* 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"; + } else if (!strcmp(aname, "remove")) { + aname = "close"; + } + + if (opt_integrity) + integrity_alg = opt_integrity; + + 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) { + 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)); + } + + if (opt_integrity_recalculate && strcmp(aname, "open")) + usage(popt_context, EXIT_FAILURE, + _("Option --integrity-recalculate can be used only for open action."), + poptGetInvocationName(popt_context)); + + if (opt_allow_discards && strcmp(aname, "open")) + usage(popt_context, EXIT_FAILURE, + _("Option --allow-discards is allowed only for open operation."), + poptGetInvocationName(popt_context)); + + if (opt_interleave_sectors < 0 || opt_journal_watermark < 0 || + opt_journal_commit_time < 0 || opt_tag_size < 0 || + opt_sector_size < 0 || opt_buffer_sectors < 0 || + opt_integrity_key_size < 0 || opt_journal_integrity_key_size < 0 || + opt_journal_crypt_key_size < 0 || opt_bitmap_flush_time < 0 || opt_bitmap_sectors_per_bit < 0) + usage(popt_context, EXIT_FAILURE, + _("Negative number for option not permitted."), + poptGetInvocationName(popt_context)); + + if (strcmp(aname, "format") && (opt_journal_size_str || opt_interleave_sectors || + opt_sector_size || opt_tag_size || opt_no_wipe )) + usage(popt_context, EXIT_FAILURE, + _("Options --journal-size, --interleave-sectors, --sector-size, --tag-size" + " and --no-wipe can be used only for format action."), + poptGetInvocationName(popt_context)); + + if (opt_journal_size_str && + tools_string_to_size(NULL, opt_journal_size_str, &opt_journal_size)) + usage(popt_context, EXIT_FAILURE, _("Invalid journal size specification."), + poptGetInvocationName(popt_context)); + + if ((opt_integrity_key_file && !opt_integrity_key_size) || + (!opt_integrity_key_file && opt_integrity_key_size)) + usage(popt_context, EXIT_FAILURE, _("Both key file and key size options must be specified."), + poptGetInvocationName(popt_context)); + + if ((opt_journal_integrity_key_file && !opt_journal_integrity_key_size) || + (!opt_journal_integrity_key_file && opt_journal_integrity_key_size)) + usage(popt_context, EXIT_FAILURE, _("Both journal integrity key file and key size options must be specified."), + poptGetInvocationName(popt_context)); + if (!opt_journal_integrity && opt_journal_integrity_key_file) + usage(popt_context, EXIT_FAILURE, _("Journal integrity algorithm must be specified if journal integrity key is used."), + poptGetInvocationName(popt_context)); + + if ((opt_journal_crypt_key_file && !opt_journal_crypt_key_size) || + (!opt_journal_crypt_key_file && opt_journal_crypt_key_size)) + usage(popt_context, EXIT_FAILURE, _("Both journal encryption key file and key size options must be specified."), + poptGetInvocationName(popt_context)); + if (!opt_journal_crypt && opt_journal_crypt_key_file) + usage(popt_context, EXIT_FAILURE, _("Journal encryption algorithm must be specified if journal encryption key is used."), + poptGetInvocationName(popt_context)); + + if (opt_integrity_recovery && opt_integrity_bitmap) + usage(popt_context, EXIT_FAILURE, _("Recovery and bitmap mode options are mutually exclusive."), + poptGetInvocationName(popt_context)); + + if (opt_integrity_bitmap && (opt_journal_integrity_key_file || opt_journal_crypt || opt_journal_watermark || opt_journal_commit_time)) + usage(popt_context, EXIT_FAILURE, _("Journal options cannot be used in bitmap mode."), + poptGetInvocationName(popt_context)); + + if (!opt_integrity_bitmap && (opt_bitmap_flush_time || opt_bitmap_sectors_per_bit)) + usage(popt_context, EXIT_FAILURE, _("Bitmap options can be used only in bitmap mode."), + poptGetInvocationName(popt_context)); + + if (opt_debug) { + opt_verbose = 1; + crypt_set_debug_level(-1); + dbg_version_and_cmd(argc, argv); + } + + r = run_action(action); + tools_cleanup(); + poptFreeContext(popt_context); + return r; +} |