Adding upstream version 2:2.6.1.upstream/2%2.6.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 767 insertions, 0 deletions

diff --git a/src/integritysetup.c b/src/integritysetup.c
new file mode 100644
index 0000000..eee6171
--- /dev/null
+++ b/src/integritysetup.c
@@ -0,0 +1,767 @@
+/*
+ * integritysetup - setup integrity protected volumes for dm-integrity
+ *
+ * Copyright (C) 2017-2023 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2017-2023 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 <uuid/uuid.h>
+
+#define DEFAULT_ALG_NAME "crc32c"
+
+#include "cryptsetup.h"
+#include "integritysetup_args.h"
+
+#define PACKAGE_INTEGRITY "integritysetup"
+
+static const char **action_argv;
+static int action_argc;
+static struct tools_log_params log_parms;
+
+void tools_cleanup(void)
+{
+	tools_args_free(tool_core_args, ARRAY_SIZE(tool_core_args));
+}
+
+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 && ARG_SET(OPT_INTEGRITY_KEY_FILE_ID)) {
+		r = tools_read_vk(ARG_STR(OPT_INTEGRITY_KEY_FILE_ID), &int_key, ARG_UINT32(OPT_INTEGRITY_KEY_SIZE_ID));
+		if (r < 0)
+			return r;
+		params->integrity_key_size = ARG_UINT32(OPT_INTEGRITY_KEY_SIZE_ID);
+	}
+
+	if (ARG_SET(OPT_JOURNAL_INTEGRITY_KEY_FILE_ID)) {
+		r = tools_read_vk(ARG_STR(OPT_JOURNAL_INTEGRITY_KEY_FILE_ID), &journal_integrity_key, ARG_UINT32(OPT_JOURNAL_INTEGRITY_KEY_SIZE_ID));
+		if (r < 0) {
+			crypt_safe_free(int_key);
+			return r;
+		}
+		params->journal_integrity_key = journal_integrity_key;
+		params->journal_integrity_key_size = ARG_UINT32(OPT_JOURNAL_INTEGRITY_KEY_SIZE_ID);
+	}
+
+	if (ARG_SET(OPT_JOURNAL_CRYPT_KEY_FILE_ID)) {
+		r = tools_read_vk(ARG_STR(OPT_JOURNAL_CRYPT_KEY_FILE_ID), &journal_crypt_key, ARG_UINT32(OPT_JOURNAL_CRYPT_KEY_SIZE_ID));
+		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 = ARG_UINT32(OPT_JOURNAL_CRYPT_KEY_SIZE_ID);
+	}
+
+	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 = -EINVAL;
+	char *backing_file = NULL;
+	struct tools_progress_params prog_parms = {
+		.frequency = ARG_UINT32(OPT_PROGRESS_FREQUENCY_ID),
+		.batch_mode = ARG_SET(OPT_BATCH_MODE_ID),
+		.json_output = ARG_SET(OPT_PROGRESS_JSON_ID),
+		.interrupt_message = _("\nWipe interrupted."),
+		.device = tools_get_device_name(crypt_get_device_name(cd), &backing_file)
+	};
+
+	if (!ARG_SET(OPT_BATCH_MODE_ID))
+		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)
+		goto out;
+	if (snprintf(tmp_path, sizeof(tmp_path), "%s/%s", crypt_get_dir(), tmp_name) < 0)
+		goto out;
+
+	r = crypt_activate_by_volume_key(cd, tmp_name, integrity_key,
+		ARG_UINT32(OPT_INTEGRITY_KEY_SIZE_ID), CRYPT_ACTIVATE_PRIVATE | CRYPT_ACTIVATE_NO_JOURNAL);
+	if (r < 0)
+		goto out;
+
+	/* Wipe the device */
+	set_int_handler(0);
+	r = crypt_wipe(cd, tmp_path, CRYPT_WIPE_ZERO, 0, 0, DEFAULT_WIPE_BLOCK,
+		       0, &tools_progress, &prog_parms);
+	if (crypt_deactivate(cd, tmp_name))
+		log_err(_("Cannot deactivate temporary device %s."), tmp_path);
+	set_int_block(0);
+
+out:
+	free(backing_file);
+	return r;
+}
+
+static int action_format(void)
+{
+	struct crypt_device *cd = NULL;
+	struct crypt_params_integrity params = {
+		.journal_size = ARG_UINT64(OPT_JOURNAL_SIZE_ID),
+		.interleave_sectors = ARG_UINT32(OPT_INTERLEAVE_SECTORS_ID),
+		/* in bitmap mode we have to overload these values... */
+		.journal_watermark = ARG_SET(OPT_INTEGRITY_BITMAP_MODE_ID) ? ARG_UINT32(OPT_BITMAP_SECTORS_PER_BIT_ID) : ARG_UINT32(OPT_JOURNAL_WATERMARK_ID),
+		.journal_commit_time = ARG_SET(OPT_INTEGRITY_BITMAP_MODE_ID) ? ARG_UINT32(OPT_BITMAP_FLUSH_TIME_ID) : ARG_UINT32(OPT_JOURNAL_COMMIT_TIME_ID),
+		.buffer_sectors = ARG_UINT32(OPT_BUFFER_SECTORS_ID),
+		.tag_size = ARG_UINT32(OPT_TAG_SIZE_ID),
+		.sector_size = ARG_UINT32(OPT_SECTOR_SIZE_ID),
+	}, 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(ARG_STR(OPT_INTEGRITY_ID), integrity);
+	if (r < 0) {
+		log_err(_("No known integrity specification pattern detected."));
+		return r;
+	}
+	params.integrity = integrity;
+
+	if (ARG_SET(OPT_JOURNAL_INTEGRITY_ID)) {
+		r = crypt_parse_hash_integrity_mode(ARG_STR(OPT_JOURNAL_INTEGRITY_ID), journal_integrity);
+		if (r < 0) {
+			log_err(_("No known integrity specification pattern detected."));
+			return r;
+		}
+		params.journal_integrity = journal_integrity;
+	}
+
+	if (ARG_SET(OPT_JOURNAL_CRYPT_ID)) {
+		r = crypt_parse_hash_integrity_mode(ARG_STR(OPT_JOURNAL_CRYPT_ID), 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, &params);
+	if (r)
+		goto out;
+
+	r = crypt_init_data_device(&cd, action_argv[0], ARG_STR(OPT_DATA_DEVICE_ID));
+	if (r < 0)
+		goto out;
+
+	if (!ARG_SET(OPT_BATCH_MODE_ID)) {
+		if (ARG_SET(OPT_DATA_DEVICE_ID) && !ARG_SET(OPT_NO_WIPE_ID))
+			r = asprintf(&msg, _("This will overwrite data on %s and %s irrevocably.\n"
+			"To preserve data device use --no-wipe option (and then activate with --integrity-recalculate)."),
+			action_argv[0], ARG_STR(OPT_DATA_DEVICE_ID));
+		else
+			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], PRB_FILTER_NONE, &signatures, ARG_SET(OPT_BATCH_MODE_ID));
+	if (r < 0)
+		goto out;
+
+	/* Signature candidates found */
+	if (signatures && ((r = tools_wipe_all_signatures(action_argv[0], true, false)) < 0))
+		goto out;
+
+	if (ARG_SET(OPT_INTEGRITY_LEGACY_PADDING_ID))
+		crypt_set_compatibility(cd, CRYPT_COMPAT_LEGACY_INTEGRITY_PADDING);
+
+	if (ARG_SET(OPT_INTEGRITY_LEGACY_HMAC_ID))
+		crypt_set_compatibility(cd, CRYPT_COMPAT_LEGACY_INTEGRITY_HMAC);
+
+	r = crypt_format(cd, CRYPT_INTEGRITY, NULL, NULL, NULL, NULL, 0, &params);
+	if (r < 0) /* FIXME: call wipe signatures again */
+		goto out;
+
+	if (!ARG_SET(OPT_BATCH_MODE_ID) && !crypt_get_integrity_info(cd, &params2))
+		log_std(_("Formatted with tag size %u, internal integrity %s.\n"),
+			params2.tag_size, params2.integrity);
+
+	if (!ARG_SET(OPT_NO_WIPE_ID))
+		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_resize(void)
+{
+	int r;
+	struct crypt_device *cd = NULL;
+	struct crypt_active_device cad;
+	uint64_t new_dev_size = 0;
+	uint64_t old_dev_size;
+	char path[PATH_MAX];
+	char *backing_file = NULL;
+	struct tools_progress_params prog_parms = {
+		.frequency = ARG_UINT32(OPT_PROGRESS_FREQUENCY_ID),
+		.batch_mode = ARG_SET(OPT_BATCH_MODE_ID),
+		.json_output = ARG_SET(OPT_PROGRESS_JSON_ID),
+		.interrupt_message = _("\nWipe interrupted."),
+		.device = tools_get_device_name(crypt_get_device_name(cd), &backing_file)
+	};
+
+	if (ARG_SET(OPT_DEVICE_SIZE_ID))
+		new_dev_size = ARG_UINT64(OPT_DEVICE_SIZE_ID) / SECTOR_SIZE;
+	else if (ARG_SET(OPT_SIZE_ID))
+		new_dev_size = ARG_UINT64(OPT_SIZE_ID);
+
+	r = crypt_init_by_name_and_header(&cd, action_argv[0], NULL);
+	if (r)
+		goto out;
+
+	r = crypt_get_active_device(cd, action_argv[0], &cad);
+	if (r)
+		goto out;
+	old_dev_size = cad.size;
+
+	r = snprintf(path, sizeof(path), "%s/%s", crypt_get_dir(), action_argv[0]);
+	if (r < 0)
+		goto out;
+	r = crypt_resize(cd, action_argv[0], new_dev_size);
+	if (r)
+		goto out;
+
+	if (!new_dev_size) {
+		r = crypt_get_active_device(cd, action_argv[0], &cad);
+		if (r)
+			goto out;
+		new_dev_size = cad.size;
+	}
+
+	if (new_dev_size > old_dev_size) {
+		if (ARG_SET(OPT_WIPE_ID)) {
+			if (ARG_SET(OPT_BATCH_MODE_ID))
+				log_dbg("Wiping the end of the resized device");
+			else
+				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"));
+
+			set_int_handler(0);
+			r = crypt_wipe(cd, path, CRYPT_WIPE_ZERO, old_dev_size * SECTOR_SIZE,
+				      (new_dev_size - old_dev_size) * SECTOR_SIZE, DEFAULT_WIPE_BLOCK,
+				      0, &tools_progress, &prog_parms);
+			set_int_block(0);
+		} else {
+			log_dbg("Setting recalculate flag");
+			r = crypt_activate_by_volume_key(cd, action_argv[0], NULL, 0, CRYPT_ACTIVATE_REFRESH | CRYPT_ACTIVATE_RECALCULATE);
+
+			if (r == -ENOTSUP)
+				log_err(_("Setting recalculate flag is not supported, you may consider using --wipe instead."));
+		}
+	}
+out:
+	if (backing_file)
+		free(backing_file);
+	crypt_free(cd);
+	return r;
+}
+
+static int action_open(void)
+{
+	struct crypt_device *cd = NULL;
+	struct crypt_params_integrity params = {
+		/* in bitmap mode we have to overload these values... */
+		.journal_watermark = ARG_SET(OPT_INTEGRITY_BITMAP_MODE_ID) ? ARG_UINT32(OPT_BITMAP_SECTORS_PER_BIT_ID) : ARG_UINT32(OPT_JOURNAL_WATERMARK_ID),
+		.journal_commit_time = ARG_SET(OPT_INTEGRITY_BITMAP_MODE_ID) ? ARG_UINT32(OPT_BITMAP_FLUSH_TIME_ID) : ARG_UINT32(OPT_JOURNAL_COMMIT_TIME_ID),
+		.buffer_sectors = ARG_UINT32(OPT_BUFFER_SECTORS_ID),
+	};
+	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(ARG_STR(OPT_INTEGRITY_ID), integrity);
+	if (r < 0) {
+		log_err(_("No known integrity specification pattern detected."));
+		return r;
+	}
+	params.integrity = integrity;
+
+	if (ARG_SET(OPT_JOURNAL_INTEGRITY_ID)) {
+		r = crypt_parse_hash_integrity_mode(ARG_STR(OPT_JOURNAL_INTEGRITY_ID), journal_integrity);
+		if (r < 0) {
+			log_err(_("No known integrity specification pattern detected."));
+			return r;
+
+		}
+		params.journal_integrity = journal_integrity;
+	}
+
+	if (ARG_SET(OPT_JOURNAL_CRYPT_ID)) {
+		r = crypt_parse_hash_integrity_mode(ARG_STR(OPT_JOURNAL_CRYPT_ID), journal_crypt);
+		if (r < 0) {
+			log_err(_("No known integrity specification pattern detected."));
+			return r;
+		}
+		params.journal_crypt = journal_crypt;
+	}
+
+	if (ARG_SET(OPT_INTEGRITY_NO_JOURNAL_ID) || ARG_SET(OPT_INTEGRITY_BITMAP_MODE_ID))
+		activate_flags |= CRYPT_ACTIVATE_NO_JOURNAL;
+	if (ARG_SET(OPT_INTEGRITY_RECOVERY_MODE_ID))
+		activate_flags |= CRYPT_ACTIVATE_RECOVERY;
+	if (ARG_SET(OPT_INTEGRITY_BITMAP_MODE_ID))
+		activate_flags |= CRYPT_ACTIVATE_NO_JOURNAL_BITMAP;
+
+	if (ARG_SET(OPT_INTEGRITY_RECALCULATE_ID) || ARG_SET(OPT_INTEGRITY_LEGACY_RECALC_ID))
+		activate_flags |= CRYPT_ACTIVATE_RECALCULATE;
+
+	if (ARG_SET(OPT_INTEGRITY_RECALCULATE_RESET_ID))
+		activate_flags |= CRYPT_ACTIVATE_RECALCULATE_RESET;
+
+	if (ARG_SET(OPT_ALLOW_DISCARDS_ID))
+		activate_flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS;
+
+	r = _read_keys(&integrity_key, &params);
+	if (r)
+		goto out;
+
+	if ((r = crypt_init_data_device(&cd, action_argv[0], ARG_STR(OPT_DATA_DEVICE_ID))))
+		goto out;
+
+	r = crypt_load(cd, CRYPT_INTEGRITY, &params);
+	if (r) {
+		log_err(_("Device %s is not a valid INTEGRITY device."), action_argv[0]);
+		goto out;
+	}
+
+	if (ARG_SET(OPT_INTEGRITY_LEGACY_RECALC_ID))
+		crypt_set_compatibility(cd, CRYPT_COMPAT_LEGACY_INTEGRITY_RECALC);
+
+	r = crypt_activate_by_volume_key(cd, action_argv[1], integrity_key,
+					 ARG_UINT32(OPT_INTEGRITY_KEY_SIZE_ID), 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(void)
+{
+	struct crypt_device *cd = NULL;
+	crypt_status_info ci;
+	uint32_t flags = 0;
+	int r;
+
+	if (ARG_SET(OPT_DEFERRED_ID))
+		flags |= CRYPT_DEACTIVATE_DEFERRED;
+	if (ARG_SET(OPT_CANCEL_DEFERRED_ID))
+		flags |= CRYPT_DEACTIVATE_DEFERRED_CANCEL;
+
+	r = crypt_init_by_name(&cd, action_argv[0]);
+	if (r == 0)
+		r = crypt_deactivate_by_name(cd, action_argv[0], flags);
+
+	if (!r && ARG_SET(OPT_DEFERRED_ID)) {
+		ci = crypt_status(cd, action_argv[0]);
+		if (ci == CRYPT_ACTIVE || ci == CRYPT_BUSY)
+			log_std(_("Device %s is still active and scheduled for deferred removal.\n"),
+				  action_argv[0]);
+	}
+
+	crypt_free(cd);
+	return r;
+}
+
+static int action_status(void)
+{
+	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(void)
+{
+	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, &params);
+	if (!r)
+		crypt_dump(cd);
+	else
+		log_err(_("Device %s is not a valid INTEGRITY device."), action_argv[0]);
+
+	crypt_free(cd);
+	return r;
+}
+
+static struct action_type {
+	const char *type;
+	int (*handler)(void);
+	int required_action_argc;
+	const char *arg_desc;
+	const char *desc;
+} action_types[] = {
+	{ FORMAT_ACTION,action_format, 1, N_("<integrity_device>"),N_("format device") },
+	{ OPEN_ACTION,	action_open,   2, N_("<integrity_device> <name>"),N_("open device as <name>") },
+	{ CLOSE_ACTION,	action_close,  1, N_("<name>"),N_("close device (remove mapping)") },
+	{ STATUS_ACTION,action_status, 1, N_("<name>"),N_("show active device status") },
+	{ DUMP_ACTION,	action_dump,   1, N_("<integrity_device>"),N_("show on-disk information") },
+	{ RESIZE_ACTION,action_resize, 1, N_("<name>"), N_("resize active device") },
+	{}
+};
+
+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 == '?') {
+		tools_package_version(PACKAGE_INTEGRITY, false);
+		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') {
+		tools_package_version(PACKAGE_INTEGRITY, false);
+		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();
+
+	show_status(r);
+	return translate_errno(r);
+}
+
+static bool needs_size_conversion(unsigned int arg_id)
+{
+	return (arg_id == OPT_JOURNAL_SIZE_ID || arg_id == OPT_DEVICE_SIZE_ID);
+}
+
+static void basic_options_cb(poptContext popt_context,
+		 enum poptCallbackReason reason __attribute__((unused)),
+		 struct poptOption *key,
+		 const char *arg,
+		 void *data __attribute__((unused)))
+{
+	char msg[256];
+
+	tools_parse_arg_value(popt_context, tool_core_args[key->val].type, tool_core_args + key->val, arg, key->val, needs_size_conversion);
+
+	/* special cases additional handling */
+	switch (key->val) {
+	case OPT_DEBUG_ID:
+		log_parms.debug = true;
+		/* fall through */
+	case OPT_VERBOSE_ID:
+		log_parms.verbose = true;
+		break;
+	case OPT_INTEGRITY_KEY_SIZE_ID:
+		/* fall through */
+	case OPT_JOURNAL_INTEGRITY_KEY_SIZE_ID:
+		/* fall through */
+	case OPT_JOURNAL_CRYPT_KEY_SIZE_ID:
+		if (ARG_UINT32(key->val) > (DEFAULT_INTEGRITY_KEYFILE_SIZE_MAXKB * 1024)) {
+			if (snprintf(msg, sizeof(msg), _("Invalid --%s size. Maximum is %u bytes."),
+			    key->longName, DEFAULT_INTEGRITY_KEYFILE_SIZE_MAXKB * 1024) < 0)
+				msg[0] = '\0';
+			usage(popt_context, EXIT_FAILURE, msg,
+			      poptGetInvocationName(popt_context));
+		}
+	}
+}
+
+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_basic_options[] = {
+		{ NULL,    '\0', POPT_ARG_CALLBACK, basic_options_cb, 0, NULL, NULL },
+#define ARG(A, B, C, D, E, F, G, H) { A, B, C, NULL, A ## _ID, D, E },
+#include "integritysetup_arg_list.h"
+#undef ARG
+		POPT_TABLEEND
+	};
+	static struct poptOption popt_options[] = {
+		{ NULL, '\0', POPT_ARG_INCLUDE_TABLE, popt_help_options, 0, N_("Help options:"), NULL },
+		{ NULL, '\0', POPT_ARG_INCLUDE_TABLE, popt_basic_options, 0, NULL, NULL },
+		POPT_TABLEEND
+	};
+	poptContext popt_context;
+	struct action_type *action;
+	const char *aname;
+	int r;
+
+	crypt_set_log_callback(NULL, tool_log, &log_parms);
+
+	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";
+	}
+
+	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];
+		if (snprintf(buf, 128,_("%s: requires %s as arguments"), action->type, action->arg_desc) < 0)
+			buf[0] ='\0';
+		usage(popt_context, EXIT_FAILURE, buf,
+		      poptGetInvocationName(popt_context));
+	}
+
+	tools_check_args(action->type, tool_core_args, ARRAY_SIZE(tool_core_args), popt_context);
+
+	if (ARG_SET(OPT_INTEGRITY_KEY_FILE_ID) != ARG_SET(OPT_INTEGRITY_KEY_SIZE_ID))
+		usage(popt_context, EXIT_FAILURE, _("Both key file and key size options must be specified."),
+		      poptGetInvocationName(popt_context));
+
+	if (ARG_SET(OPT_JOURNAL_INTEGRITY_KEY_FILE_ID) != ARG_SET(OPT_JOURNAL_INTEGRITY_KEY_SIZE_ID))
+		usage(popt_context, EXIT_FAILURE, _("Both journal integrity key file and key size options must be specified."),
+		      poptGetInvocationName(popt_context));
+	if (!ARG_SET(OPT_JOURNAL_INTEGRITY_ID) && ARG_SET(OPT_JOURNAL_INTEGRITY_KEY_FILE_ID))
+		usage(popt_context, EXIT_FAILURE, _("Journal integrity algorithm must be specified if journal integrity key is used."),
+		      poptGetInvocationName(popt_context));
+
+	if (ARG_SET(OPT_JOURNAL_CRYPT_KEY_FILE_ID) != ARG_SET(OPT_JOURNAL_CRYPT_KEY_SIZE_ID))
+		usage(popt_context, EXIT_FAILURE, _("Both journal encryption key file and key size options must be specified."),
+		      poptGetInvocationName(popt_context));
+	if (!ARG_SET(OPT_JOURNAL_CRYPT_ID) && ARG_SET(OPT_JOURNAL_CRYPT_KEY_FILE_ID))
+		usage(popt_context, EXIT_FAILURE, _("Journal encryption algorithm must be specified if journal encryption key is used."),
+		      poptGetInvocationName(popt_context));
+
+	if (ARG_SET(OPT_INTEGRITY_RECOVERY_MODE_ID) && ARG_SET(OPT_INTEGRITY_BITMAP_MODE_ID))
+		usage(popt_context, EXIT_FAILURE, _("Recovery and bitmap mode options are mutually exclusive."),
+		      poptGetInvocationName(popt_context));
+
+	if (ARG_SET(OPT_INTEGRITY_BITMAP_MODE_ID) &&
+	    (ARG_SET(OPT_JOURNAL_INTEGRITY_KEY_FILE_ID) ||
+	     ARG_SET(OPT_JOURNAL_CRYPT_ID) || ARG_SET(OPT_JOURNAL_WATERMARK_ID) ||
+	     ARG_SET(OPT_JOURNAL_COMMIT_TIME_ID)))
+		usage(popt_context, EXIT_FAILURE, _("Journal options cannot be used in bitmap mode."),
+		      poptGetInvocationName(popt_context));
+
+	if (!ARG_SET(OPT_INTEGRITY_BITMAP_MODE_ID) &&
+	    (ARG_SET(OPT_BITMAP_FLUSH_TIME_ID) || ARG_SET(OPT_BITMAP_SECTORS_PER_BIT_ID)))
+		usage(popt_context, EXIT_FAILURE, _("Bitmap options can be used only in bitmap mode."),
+		      poptGetInvocationName(popt_context));
+
+	if (ARG_SET(OPT_CANCEL_DEFERRED_ID) && ARG_SET(OPT_DEFERRED_ID))
+		usage(popt_context, EXIT_FAILURE,
+		      _("Options --cancel-deferred and --deferred cannot be used at the same time."),
+		      poptGetInvocationName(popt_context));
+
+	if (ARG_SET(OPT_DEBUG_ID)) {
+		crypt_set_debug_level(CRYPT_DEBUG_ALL);
+		dbg_version_and_cmd(argc, argv);
+	}
+
+	r = run_action(action);
+	tools_cleanup();
+	poptFreeContext(popt_context);
+	return r;
+}