libzfs_import.c revision 88ecc943b4eb72f7c4fbbd8435997b85ef171fc3
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * CDDL HEADER START
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * The contents of this file are subject to the terms of the
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Common Development and Distribution License (the "License").
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * You may not use this file except in compliance with the License.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * See the License for the specific language governing permissions
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * and limitations under the License.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * When distributing Covered Code, include this CDDL HEADER in each
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * If applicable, add the following below this CDDL HEADER, with the
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * fields enclosed by brackets "[]" replaced with your own identifying
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * information: Portions Copyright [yyyy] [name of copyright owner]
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * CDDL HEADER END
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Use is subject to license terms.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Pool import support functions.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * To import a pool, we rely on reading the configuration information from the
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * ZFS label of each device. If we successfully read the label, then we
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * organize the configuration information in the following hierarchy:
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * pool guid -> toplevel vdev guid -> label txg
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Duplicate entries matching this same tuple will be discarded. Once we have
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * examined every device, we pick the best label txg config for each toplevel
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * vdev. We then arrange these toplevel vdevs into a complete pool config, and
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * update any paths that have changed. Finally, we attempt to import the pool
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * using our derived config, and record the results.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Intermediate structures used to gather configuration information.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrighttypedef struct config_entry {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrighttypedef struct vdev_entry {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrighttypedef struct pool_entry {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrighttypedef struct name_entry {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrighttypedef struct pool_list {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrightstatic char *
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Go through and fix up any path and/or devid information for the given vdev
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * configuration.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (c = 0; c < children; c++)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * This is a leaf (file or disk) vdev. In either case, go through
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * the name list and see if we find a matching guid. If so, replace
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * the path and see if we can calculate a new devid.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * There may be multiple names associated with a particular guid, in
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * which case we have overlapping slices or multiple paths to the same
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * disk. If this is the case, then we want to pick the path that is
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * the most similar to the original, where "most similar" is the number
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * of matching characters starting from the end of the path. This will
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * preserve slice numbers even if the disks have been reorganized, and
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * will also catch preferred disk names if multiple paths exist.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) != 0)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (ne = names; ne != NULL; ne = ne->ne_next) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (count = 0; src >= ne->ne_name && dst >= path;
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * At this point, 'count' is the number of characters
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * matched from the end.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_add_string(nv, ZPOOL_CONFIG_PATH, best->ne_name) != 0)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if ((devid = get_devid(best->ne_name)) == NULL) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright (void) nvlist_remove_all(nv, ZPOOL_CONFIG_DEVID);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_add_string(nv, ZPOOL_CONFIG_DEVID, devid) != 0)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Add the given configuration to the list of known devices.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrightadd_config(libzfs_handle_t *hdl, pool_list_t *pl, const char *path,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright uint64_t pool_guid, vdev_guid, top_guid, txg, state;
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * If this is a hot spare not currently in use or level 2 cache
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * device, add it to the list of names to translate, but don't do
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * anything else.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright (state == POOL_STATE_SPARE || state == POOL_STATE_L2CACHE) &&
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID, &vdev_guid) == 0) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if ((ne = zfs_alloc(hdl, sizeof (name_entry_t))) == NULL)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if ((ne->ne_name = zfs_strdup(hdl, path)) == NULL) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * If we have a valid config but cannot read any of these fields, then
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * it means we have a half-initialized label. In vdev_label_init()
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * we write a label with txg == 0 so that we can identify the device
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * in case the user refers to the same disk later on. If we fail to
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * create the pool, we'll be left with a label in this state
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * which should not be considered part of a valid pool.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright nvlist_lookup_uint64(config, ZPOOL_CONFIG_TOP_GUID,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * First, see if we know about this pool. If not, then add it to the
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * list of known pools.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (pe = pl->pools; pe != NULL; pe = pe->pe_next) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if ((pe = zfs_alloc(hdl, sizeof (pool_entry_t))) == NULL) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Second, see if we know about this toplevel vdev. Add it if its
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (ve = pe->pe_vdevs; ve != NULL; ve = ve->ve_next) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if ((ve = zfs_alloc(hdl, sizeof (vdev_entry_t))) == NULL) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Third, see if we have a config with a matching transaction group. If
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * so, then we do nothing. Otherwise, add it to the list of known
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (ce = ve->ve_configs; ce != NULL; ce = ce->ce_next) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if ((ce = zfs_alloc(hdl, sizeof (config_entry_t))) == NULL) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * At this point we've successfully added our config to the list of
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * known configs. The last thing to do is add the vdev guid -> path
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * mappings so that we can fix up the configuration as necessary before
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * doing the import.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if ((ne = zfs_alloc(hdl, sizeof (name_entry_t))) == NULL)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if ((ne->ne_name = zfs_strdup(hdl, path)) == NULL) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Returns true if the named pool matches the given GUID.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrightpool_active(libzfs_handle_t *hdl, const char *name, uint64_t guid,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright verify(nvlist_lookup_uint64(zhp->zpool_config, ZPOOL_CONFIG_POOL_GUID,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrightrefresh_config(libzfs_handle_t *hdl, nvlist_t *config)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (zcmd_write_conf_nvlist(hdl, &zc, config) != 0)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright while ((err = ioctl(hdl->libzfs_fd, ZFS_IOC_POOL_TRYIMPORT,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (zcmd_read_dst_nvlist(hdl, &zc, &nvl) != 0) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Determine if the vdev id is a hole in the namespace.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrightvdev_is_hole(uint64_t *hole_array, uint_t holes, uint_t id)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (int c = 0; c < holes; c++) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright /* Top-level is a hole */
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Convert our list of pools into the definitive set of configurations. We
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * start by picking the best config for each toplevel vdev. Once that's done,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * we assemble the toplevel vdevs into a full config for the pool. We make a
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * pass to fix up any incorrect paths, and then add it to the main list to
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * return to the user.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrightget_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright nvlist_t *ret = NULL, *config = NULL, *tmp, *nvtop, *nvroot;
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (pe = pl->pools; pe != NULL; pe = pe->pe_next) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_alloc(&config, NV_UNIQUE_NAME, 0) != 0)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Iterate over all toplevel vdevs. Grab the pool configuration
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * from the first one we find, and then go through the rest and
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * add them as necessary to the 'vdevs' member of the config.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (ve = pe->pe_vdevs; ve != NULL; ve = ve->ve_next) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Determine the best configuration for this vdev by
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * selecting the config with the latest transaction
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * We rely on the fact that the max txg for the
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * pool will contain the most up-to-date information
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * about the valid top-levels in the vdev namespace.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Copy the relevant pieces of data to the pool
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * configuration:
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * pool state
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * hostid (if available)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * hostname (if available)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Add this top-level vdev to the child array.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright verify(nvlist_lookup_uint64(nvtop, ZPOOL_CONFIG_ID,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (c = 0; c < children; c++)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * If we have information about all the top-levels then
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * clean up the nvlist which we've constructed. This
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * means removing any extraneous devices that are
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * beyond the valid range or adding devices to the end
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * of our array which appear to be missing.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (c = 0; c < children; c++)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * The vdev namespace may contain holes as a result of
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * device removal. We must add them back into the vdev
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * tree before we process any missing devices.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (c = 0; c < children; c++) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Holes in the namespace are treated as
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * "hole" top-level vdevs and have a
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * special flag set on them.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Look for any missing top-level vdevs. If this is the case,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * create a faked up 'missing' vdev as a placeholder. We cannot
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * simply compress the child array, because the kernel performs
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * certain checks to make sure the vdev IDs match their location
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * in the configuration.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (c = 0; c < children; c++) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Put all of this pool's top-level vdevs into a root vdev.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_alloc(&nvroot, NV_UNIQUE_NAME, 0) != 0)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright nvlist_add_uint64(nvroot, ZPOOL_CONFIG_ID, 0ULL) != 0 ||
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright nvlist_add_uint64(nvroot, ZPOOL_CONFIG_GUID, guid) != 0 ||
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (c = 0; c < children; c++)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Go through and fix up any paths and/or devids based on our
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * known list of vdev GUID -> path mappings.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Add the root vdev to this pool's configuration.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * zdb uses this path to report on active pools that were
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * imported or created using -R.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Determine if this pool is currently active, in which case we
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * can't actually import it.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (pool_active(hdl, name, guid, &isactive) != 0)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if ((nvl = refresh_config(hdl, config)) == NULL) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Go through and update the paths for spares, now that we have
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (i = 0; i < nspares; i++) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Update the paths for l2cache devices.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (i = 0; i < nl2cache; i++) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Restore the original information read from the actual label.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright (void) nvlist_remove(config, ZPOOL_CONFIG_HOSTID,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright (void) nvlist_remove(config, ZPOOL_CONFIG_HOSTNAME,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright verify(nvlist_add_uint64(config, ZPOOL_CONFIG_HOSTID,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright verify(nvlist_add_string(config, ZPOOL_CONFIG_HOSTNAME,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Add this pool to the list of configs.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (c = 0; c < children; c++)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Return the offset of the given label.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright ASSERT(P2PHASE_TYPED(size, sizeof (vdev_label_t), uint64_t) == 0);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (l * sizeof (vdev_label_t) + (l < VDEV_LABELS / 2 ?
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright 0 : size - VDEV_LABELS * sizeof (vdev_label_t)));
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Given a file descriptor, read the label information and return an nvlist
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * describing the configuration, if there is one.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if ((label = malloc(sizeof (vdev_label_t))) == NULL)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright return (-1);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (l = 0; l < VDEV_LABELS; l++) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright label_offset(size, l)) != sizeof (vdev_label_t))
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_unpack(label->vl_vdev_phys.vp_nvlist,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright sizeof (label->vl_vdev_phys.vp_nvlist), config, 0) != 0)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_STATE,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright if (state != POOL_STATE_SPARE && state != POOL_STATE_L2CACHE &&
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_TXG,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Given a list of directories to search, find all pools stored on disk. This
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * includes partial pools which are not available to import. If no args are
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * given (argc is 0), then the default directory (/dev/dsk) is searched.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * poolname or guid (but not both) are provided by the caller when trying
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * to import a specific pool.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrightzpool_find_import_impl(libzfs_handle_t *hdl, int argc, char **argv,
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright boolean_t active_ok, char *poolname, uint64_t guid)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Go through and read the label configuration information from every
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * possible device, organizing the information according to pool GUID
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * and toplevel GUID.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (i = 0; i < argc; i++) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright /* use realpath to normalize the path */
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Using raw devices instead of block devices when we're
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * reading the labels skips a bunch of slow operations during
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * close(2) processing, so we replace /dev/dsk with /dev/rdsk.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * This is not MT-safe, but we have no MT consumers of libzfs
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright (name[1] == 0 || (name[1] == '.' && name[2] == 0)))
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Ignore failed stats. We only want regular
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * files, character devs and block devs.
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright } else if (guid != 0) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright /* use the non-raw path for the config */
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (pe = pools.pools; pe != NULL; pe = penext) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (ve = pe->pe_vdevs; ve != NULL; ve = venext) {
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright for (ce = ve->ve_configs; ce != NULL; ce = cenext) {
if (dirp)
return (ret);
nvlist_t *
nvlist_t *
char *pool)
nvlist_t *
nvlist_t *
nvlist_t *
char *buf;
int fd;
char *name;
return (NULL);
return (NULL);
return (NULL);
return (NULL);
return (NULL);
return (NULL);
&name) == 0);
&this_guid) == 0);
if (guid != 0) {
&this_guid) == 0);
return (NULL);
if (active)
return (NULL);
return (NULL);
return (pools);
return (B_TRUE);
for (c = 0; c < children; c++)
return (B_TRUE);
return (B_FALSE);
typedef struct aux_cbdata {
const char *cb_type;
} aux_cbdata_t;
&nvroot) == 0);
for (i = 0; i < count; i++) {
char *name;
&stateval) == 0);
&vdev_guid) == 0);
&name) == 0);
&guid) == 0);
switch (stateval) {
case POOL_STATE_EXPORTED:
case POOL_STATE_ACTIVE:
if (isactive) {
!= NULL) {
case POOL_STATE_SPARE:
case POOL_STATE_L2CACHE:
if (ret) {