2008-11-20 20:01:55 +00:00
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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2010-08-26 21:24:34 +00:00
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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2011-11-15 19:01:27 +00:00
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* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
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2012-12-14 20:38:04 +00:00
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* Copyright (c) 2012 by Delphix. All rights reserved.
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2008-11-20 20:01:55 +00:00
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*/
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/*
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* Pool import support functions.
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*
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* To import a pool, we rely on reading the configuration information from the
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* ZFS label of each device. If we successfully read the label, then we
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* organize the configuration information in the following hierarchy:
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*
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* pool guid -> toplevel vdev guid -> label txg
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*
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* Duplicate entries matching this same tuple will be discarded. Once we have
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* examined every device, we pick the best label txg config for each toplevel
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* vdev. We then arrange these toplevel vdevs into a complete pool config, and
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* update any paths that have changed. Finally, we attempt to import the pool
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* using our derived config, and record the results.
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*/
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2010-05-28 20:45:14 +00:00
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#include <ctype.h>
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2008-11-20 20:01:55 +00:00
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#include <devid.h>
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#include <dirent.h>
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#include <errno.h>
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#include <libintl.h>
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2010-05-28 20:45:14 +00:00
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#include <stddef.h>
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2008-11-20 20:01:55 +00:00
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <fcntl.h>
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2010-05-28 20:45:14 +00:00
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#include <sys/vtoc.h>
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#include <sys/dktp/fdisk.h>
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#include <sys/efi_partition.h>
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2008-11-20 20:01:55 +00:00
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#include <sys/vdev_impl.h>
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2010-08-26 18:56:53 +00:00
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#ifdef HAVE_LIBBLKID
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#include <blkid/blkid.h>
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#endif
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2008-11-20 20:01:55 +00:00
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#include "libzfs.h"
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#include "libzfs_impl.h"
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/*
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* Intermediate structures used to gather configuration information.
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*/
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typedef struct config_entry {
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uint64_t ce_txg;
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nvlist_t *ce_config;
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struct config_entry *ce_next;
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} config_entry_t;
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typedef struct vdev_entry {
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uint64_t ve_guid;
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config_entry_t *ve_configs;
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struct vdev_entry *ve_next;
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} vdev_entry_t;
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typedef struct pool_entry {
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uint64_t pe_guid;
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vdev_entry_t *pe_vdevs;
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struct pool_entry *pe_next;
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} pool_entry_t;
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typedef struct name_entry {
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char *ne_name;
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uint64_t ne_guid;
|
2012-09-15 20:25:21 +00:00
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uint64_t ne_order;
|
2008-11-20 20:01:55 +00:00
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struct name_entry *ne_next;
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|
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} name_entry_t;
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typedef struct pool_list {
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pool_entry_t *pools;
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name_entry_t *names;
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|
|
} pool_list_t;
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|
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static char *
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|
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get_devid(const char *path)
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|
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{
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int fd;
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|
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ddi_devid_t devid;
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|
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char *minor, *ret;
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if ((fd = open(path, O_RDONLY)) < 0)
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return (NULL);
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minor = NULL;
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ret = NULL;
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|
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if (devid_get(fd, &devid) == 0) {
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|
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if (devid_get_minor_name(fd, &minor) == 0)
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ret = devid_str_encode(devid, minor);
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|
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if (minor != NULL)
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devid_str_free(minor);
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devid_free(devid);
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}
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(void) close(fd);
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return (ret);
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}
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/*
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* Go through and fix up any path and/or devid information for the given vdev
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* configuration.
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*/
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static int
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fix_paths(nvlist_t *nv, name_entry_t *names)
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|
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{
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nvlist_t **child;
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|
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uint_t c, children;
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|
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uint64_t guid;
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|
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name_entry_t *ne, *best;
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|
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char *path, *devid;
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|
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if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
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&child, &children) == 0) {
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for (c = 0; c < children; c++)
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|
|
if (fix_paths(child[c], names) != 0)
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return (-1);
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return (0);
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|
}
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/*
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* This is a leaf (file or disk) vdev. In either case, go through
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* the name list and see if we find a matching guid. If so, replace
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* the path and see if we can calculate a new devid.
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*
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* There may be multiple names associated with a particular guid, in
|
2012-09-15 20:25:21 +00:00
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|
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* which case we have overlapping partitions or multiple paths to the
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* same disk. In this case we prefer to use the path name which
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* matches the ZPOOL_CONFIG_PATH. If no matching entry is found we
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* use the lowest order device which corresponds to the first match
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* while traversing the ZPOOL_IMPORT_PATH search path.
|
2008-11-20 20:01:55 +00:00
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|
*/
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verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0);
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if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) != 0)
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path = NULL;
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best = NULL;
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for (ne = names; ne != NULL; ne = ne->ne_next) {
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if (ne->ne_guid == guid) {
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if (path == NULL) {
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best = ne;
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break;
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}
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|
2012-09-15 20:25:21 +00:00
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|
|
if ((strlen(path) == strlen(ne->ne_name)) &&
|
2013-11-01 19:26:11 +00:00
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|
strncmp(path, ne->ne_name, strlen(path)) == 0) {
|
2008-11-20 20:01:55 +00:00
|
|
|
best = ne;
|
2012-09-15 20:25:21 +00:00
|
|
|
break;
|
2008-11-20 20:01:55 +00:00
|
|
|
}
|
2012-09-15 20:25:21 +00:00
|
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|
2012-09-18 19:33:00 +00:00
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|
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if (best == NULL || ne->ne_order < best->ne_order)
|
2012-09-15 20:25:21 +00:00
|
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best = ne;
|
2008-11-20 20:01:55 +00:00
|
|
|
}
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}
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if (best == NULL)
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return (0);
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if (nvlist_add_string(nv, ZPOOL_CONFIG_PATH, best->ne_name) != 0)
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return (-1);
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if ((devid = get_devid(best->ne_name)) == NULL) {
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(void) nvlist_remove_all(nv, ZPOOL_CONFIG_DEVID);
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} else {
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if (nvlist_add_string(nv, ZPOOL_CONFIG_DEVID, devid) != 0)
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return (-1);
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devid_str_free(devid);
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}
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return (0);
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}
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/*
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* Add the given configuration to the list of known devices.
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*/
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static int
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add_config(libzfs_handle_t *hdl, pool_list_t *pl, const char *path,
|
2012-09-15 20:25:21 +00:00
|
|
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int order, nvlist_t *config)
|
2008-11-20 20:01:55 +00:00
|
|
|
{
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|
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uint64_t pool_guid, vdev_guid, top_guid, txg, state;
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|
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pool_entry_t *pe;
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vdev_entry_t *ve;
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config_entry_t *ce;
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name_entry_t *ne;
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|
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/*
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|
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* If this is a hot spare not currently in use or level 2 cache
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* device, add it to the list of names to translate, but don't do
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* anything else.
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|
|
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*/
|
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|
|
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
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|
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&state) == 0 &&
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|
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(state == POOL_STATE_SPARE || state == POOL_STATE_L2CACHE) &&
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|
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nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID, &vdev_guid) == 0) {
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if ((ne = zfs_alloc(hdl, sizeof (name_entry_t))) == NULL)
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return (-1);
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if ((ne->ne_name = zfs_strdup(hdl, path)) == NULL) {
|
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|
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free(ne);
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|
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return (-1);
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|
|
}
|
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|
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ne->ne_guid = vdev_guid;
|
2012-09-15 20:25:21 +00:00
|
|
|
ne->ne_order = order;
|
2008-11-20 20:01:55 +00:00
|
|
|
ne->ne_next = pl->names;
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|
|
pl->names = ne;
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|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If we have a valid config but cannot read any of these fields, then
|
|
|
|
* it means we have a half-initialized label. In vdev_label_init()
|
|
|
|
* we write a label with txg == 0 so that we can identify the device
|
|
|
|
* in case the user refers to the same disk later on. If we fail to
|
|
|
|
* create the pool, we'll be left with a label in this state
|
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|
|
* which should not be considered part of a valid pool.
|
|
|
|
*/
|
|
|
|
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
|
|
|
|
&pool_guid) != 0 ||
|
|
|
|
nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID,
|
|
|
|
&vdev_guid) != 0 ||
|
|
|
|
nvlist_lookup_uint64(config, ZPOOL_CONFIG_TOP_GUID,
|
|
|
|
&top_guid) != 0 ||
|
|
|
|
nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG,
|
|
|
|
&txg) != 0 || txg == 0) {
|
|
|
|
nvlist_free(config);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* First, see if we know about this pool. If not, then add it to the
|
|
|
|
* list of known pools.
|
|
|
|
*/
|
|
|
|
for (pe = pl->pools; pe != NULL; pe = pe->pe_next) {
|
|
|
|
if (pe->pe_guid == pool_guid)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pe == NULL) {
|
|
|
|
if ((pe = zfs_alloc(hdl, sizeof (pool_entry_t))) == NULL) {
|
|
|
|
nvlist_free(config);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
pe->pe_guid = pool_guid;
|
|
|
|
pe->pe_next = pl->pools;
|
|
|
|
pl->pools = pe;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Second, see if we know about this toplevel vdev. Add it if its
|
|
|
|
* missing.
|
|
|
|
*/
|
|
|
|
for (ve = pe->pe_vdevs; ve != NULL; ve = ve->ve_next) {
|
|
|
|
if (ve->ve_guid == top_guid)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ve == NULL) {
|
|
|
|
if ((ve = zfs_alloc(hdl, sizeof (vdev_entry_t))) == NULL) {
|
|
|
|
nvlist_free(config);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
ve->ve_guid = top_guid;
|
|
|
|
ve->ve_next = pe->pe_vdevs;
|
|
|
|
pe->pe_vdevs = ve;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Third, see if we have a config with a matching transaction group. If
|
|
|
|
* so, then we do nothing. Otherwise, add it to the list of known
|
|
|
|
* configs.
|
|
|
|
*/
|
|
|
|
for (ce = ve->ve_configs; ce != NULL; ce = ce->ce_next) {
|
|
|
|
if (ce->ce_txg == txg)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ce == NULL) {
|
|
|
|
if ((ce = zfs_alloc(hdl, sizeof (config_entry_t))) == NULL) {
|
|
|
|
nvlist_free(config);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
ce->ce_txg = txg;
|
|
|
|
ce->ce_config = config;
|
|
|
|
ce->ce_next = ve->ve_configs;
|
|
|
|
ve->ve_configs = ce;
|
|
|
|
} else {
|
|
|
|
nvlist_free(config);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* At this point we've successfully added our config to the list of
|
|
|
|
* known configs. The last thing to do is add the vdev guid -> path
|
|
|
|
* mappings so that we can fix up the configuration as necessary before
|
|
|
|
* doing the import.
|
|
|
|
*/
|
|
|
|
if ((ne = zfs_alloc(hdl, sizeof (name_entry_t))) == NULL)
|
|
|
|
return (-1);
|
|
|
|
|
|
|
|
if ((ne->ne_name = zfs_strdup(hdl, path)) == NULL) {
|
|
|
|
free(ne);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
ne->ne_guid = vdev_guid;
|
2012-09-15 20:25:21 +00:00
|
|
|
ne->ne_order = order;
|
2008-11-20 20:01:55 +00:00
|
|
|
ne->ne_next = pl->names;
|
|
|
|
pl->names = ne;
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Returns true if the named pool matches the given GUID.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
pool_active(libzfs_handle_t *hdl, const char *name, uint64_t guid,
|
|
|
|
boolean_t *isactive)
|
|
|
|
{
|
|
|
|
zpool_handle_t *zhp;
|
|
|
|
uint64_t theguid;
|
|
|
|
|
|
|
|
if (zpool_open_silent(hdl, name, &zhp) != 0)
|
|
|
|
return (-1);
|
|
|
|
|
|
|
|
if (zhp == NULL) {
|
|
|
|
*isactive = B_FALSE;
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
verify(nvlist_lookup_uint64(zhp->zpool_config, ZPOOL_CONFIG_POOL_GUID,
|
|
|
|
&theguid) == 0);
|
|
|
|
|
|
|
|
zpool_close(zhp);
|
|
|
|
|
|
|
|
*isactive = (theguid == guid);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static nvlist_t *
|
|
|
|
refresh_config(libzfs_handle_t *hdl, nvlist_t *config)
|
|
|
|
{
|
|
|
|
nvlist_t *nvl;
|
2013-09-04 12:00:57 +00:00
|
|
|
zfs_cmd_t zc = {"\0"};
|
2008-11-20 20:01:55 +00:00
|
|
|
int err;
|
|
|
|
|
|
|
|
if (zcmd_write_conf_nvlist(hdl, &zc, config) != 0)
|
|
|
|
return (NULL);
|
|
|
|
|
|
|
|
if (zcmd_alloc_dst_nvlist(hdl, &zc,
|
|
|
|
zc.zc_nvlist_conf_size * 2) != 0) {
|
|
|
|
zcmd_free_nvlists(&zc);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
while ((err = ioctl(hdl->libzfs_fd, ZFS_IOC_POOL_TRYIMPORT,
|
|
|
|
&zc)) != 0 && errno == ENOMEM) {
|
|
|
|
if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) {
|
|
|
|
zcmd_free_nvlists(&zc);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (err) {
|
|
|
|
zcmd_free_nvlists(&zc);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (zcmd_read_dst_nvlist(hdl, &zc, &nvl) != 0) {
|
|
|
|
zcmd_free_nvlists(&zc);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
zcmd_free_nvlists(&zc);
|
|
|
|
return (nvl);
|
|
|
|
}
|
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
/*
|
|
|
|
* Determine if the vdev id is a hole in the namespace.
|
|
|
|
*/
|
|
|
|
boolean_t
|
|
|
|
vdev_is_hole(uint64_t *hole_array, uint_t holes, uint_t id)
|
|
|
|
{
|
2010-08-26 16:52:39 +00:00
|
|
|
int c;
|
|
|
|
|
|
|
|
for (c = 0; c < holes; c++) {
|
2010-05-28 20:45:14 +00:00
|
|
|
|
|
|
|
/* Top-level is a hole */
|
|
|
|
if (hole_array[c] == id)
|
|
|
|
return (B_TRUE);
|
|
|
|
}
|
|
|
|
return (B_FALSE);
|
|
|
|
}
|
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
/*
|
|
|
|
* Convert our list of pools into the definitive set of configurations. We
|
|
|
|
* start by picking the best config for each toplevel vdev. Once that's done,
|
|
|
|
* we assemble the toplevel vdevs into a full config for the pool. We make a
|
|
|
|
* pass to fix up any incorrect paths, and then add it to the main list to
|
|
|
|
* return to the user.
|
|
|
|
*/
|
|
|
|
static nvlist_t *
|
|
|
|
get_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok)
|
|
|
|
{
|
|
|
|
pool_entry_t *pe;
|
|
|
|
vdev_entry_t *ve;
|
|
|
|
config_entry_t *ce;
|
2010-08-26 16:58:04 +00:00
|
|
|
nvlist_t *ret = NULL, *config = NULL, *tmp = NULL, *nvtop, *nvroot;
|
2008-11-20 20:01:55 +00:00
|
|
|
nvlist_t **spares, **l2cache;
|
|
|
|
uint_t i, nspares, nl2cache;
|
|
|
|
boolean_t config_seen;
|
|
|
|
uint64_t best_txg;
|
2012-12-14 20:38:04 +00:00
|
|
|
char *name, *hostname = NULL;
|
|
|
|
uint64_t guid;
|
2008-11-20 20:01:55 +00:00
|
|
|
uint_t children = 0;
|
|
|
|
nvlist_t **child = NULL;
|
2010-05-28 20:45:14 +00:00
|
|
|
uint_t holes;
|
|
|
|
uint64_t *hole_array, max_id;
|
2008-11-20 20:01:55 +00:00
|
|
|
uint_t c;
|
|
|
|
boolean_t isactive;
|
|
|
|
uint64_t hostid;
|
|
|
|
nvlist_t *nvl;
|
2008-12-03 20:09:06 +00:00
|
|
|
boolean_t found_one = B_FALSE;
|
2010-05-28 20:45:14 +00:00
|
|
|
boolean_t valid_top_config = B_FALSE;
|
2008-11-20 20:01:55 +00:00
|
|
|
|
|
|
|
if (nvlist_alloc(&ret, 0, 0) != 0)
|
|
|
|
goto nomem;
|
|
|
|
|
|
|
|
for (pe = pl->pools; pe != NULL; pe = pe->pe_next) {
|
2010-05-28 20:45:14 +00:00
|
|
|
uint64_t id, max_txg = 0;
|
2008-11-20 20:01:55 +00:00
|
|
|
|
|
|
|
if (nvlist_alloc(&config, NV_UNIQUE_NAME, 0) != 0)
|
|
|
|
goto nomem;
|
|
|
|
config_seen = B_FALSE;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Iterate over all toplevel vdevs. Grab the pool configuration
|
|
|
|
* from the first one we find, and then go through the rest and
|
|
|
|
* add them as necessary to the 'vdevs' member of the config.
|
|
|
|
*/
|
|
|
|
for (ve = pe->pe_vdevs; ve != NULL; ve = ve->ve_next) {
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Determine the best configuration for this vdev by
|
|
|
|
* selecting the config with the latest transaction
|
|
|
|
* group.
|
|
|
|
*/
|
|
|
|
best_txg = 0;
|
|
|
|
for (ce = ve->ve_configs; ce != NULL;
|
|
|
|
ce = ce->ce_next) {
|
|
|
|
|
|
|
|
if (ce->ce_txg > best_txg) {
|
|
|
|
tmp = ce->ce_config;
|
|
|
|
best_txg = ce->ce_txg;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
/*
|
|
|
|
* We rely on the fact that the max txg for the
|
|
|
|
* pool will contain the most up-to-date information
|
|
|
|
* about the valid top-levels in the vdev namespace.
|
|
|
|
*/
|
|
|
|
if (best_txg > max_txg) {
|
|
|
|
(void) nvlist_remove(config,
|
|
|
|
ZPOOL_CONFIG_VDEV_CHILDREN,
|
|
|
|
DATA_TYPE_UINT64);
|
|
|
|
(void) nvlist_remove(config,
|
|
|
|
ZPOOL_CONFIG_HOLE_ARRAY,
|
|
|
|
DATA_TYPE_UINT64_ARRAY);
|
|
|
|
|
|
|
|
max_txg = best_txg;
|
|
|
|
hole_array = NULL;
|
|
|
|
holes = 0;
|
|
|
|
max_id = 0;
|
|
|
|
valid_top_config = B_FALSE;
|
|
|
|
|
|
|
|
if (nvlist_lookup_uint64(tmp,
|
|
|
|
ZPOOL_CONFIG_VDEV_CHILDREN, &max_id) == 0) {
|
|
|
|
verify(nvlist_add_uint64(config,
|
|
|
|
ZPOOL_CONFIG_VDEV_CHILDREN,
|
|
|
|
max_id) == 0);
|
|
|
|
valid_top_config = B_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (nvlist_lookup_uint64_array(tmp,
|
|
|
|
ZPOOL_CONFIG_HOLE_ARRAY, &hole_array,
|
|
|
|
&holes) == 0) {
|
|
|
|
verify(nvlist_add_uint64_array(config,
|
|
|
|
ZPOOL_CONFIG_HOLE_ARRAY,
|
|
|
|
hole_array, holes) == 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
if (!config_seen) {
|
|
|
|
/*
|
|
|
|
* Copy the relevant pieces of data to the pool
|
|
|
|
* configuration:
|
|
|
|
*
|
|
|
|
* version
|
2012-12-14 20:38:04 +00:00
|
|
|
* pool guid
|
|
|
|
* name
|
2011-11-15 19:01:27 +00:00
|
|
|
* comment (if available)
|
2012-12-14 20:38:04 +00:00
|
|
|
* pool state
|
2008-11-20 20:01:55 +00:00
|
|
|
* hostid (if available)
|
|
|
|
* hostname (if available)
|
|
|
|
*/
|
2013-04-10 23:58:22 +00:00
|
|
|
uint64_t state, version;
|
2012-12-14 20:38:04 +00:00
|
|
|
char *comment = NULL;
|
|
|
|
|
|
|
|
version = fnvlist_lookup_uint64(tmp,
|
|
|
|
ZPOOL_CONFIG_VERSION);
|
|
|
|
fnvlist_add_uint64(config,
|
|
|
|
ZPOOL_CONFIG_VERSION, version);
|
|
|
|
guid = fnvlist_lookup_uint64(tmp,
|
|
|
|
ZPOOL_CONFIG_POOL_GUID);
|
|
|
|
fnvlist_add_uint64(config,
|
|
|
|
ZPOOL_CONFIG_POOL_GUID, guid);
|
|
|
|
name = fnvlist_lookup_string(tmp,
|
|
|
|
ZPOOL_CONFIG_POOL_NAME);
|
|
|
|
fnvlist_add_string(config,
|
|
|
|
ZPOOL_CONFIG_POOL_NAME, name);
|
2008-11-20 20:01:55 +00:00
|
|
|
|
2011-11-15 19:01:27 +00:00
|
|
|
if (nvlist_lookup_string(tmp,
|
2012-12-14 20:38:04 +00:00
|
|
|
ZPOOL_CONFIG_COMMENT, &comment) == 0)
|
|
|
|
fnvlist_add_string(config,
|
|
|
|
ZPOOL_CONFIG_COMMENT, comment);
|
2011-11-15 19:01:27 +00:00
|
|
|
|
2012-12-14 20:38:04 +00:00
|
|
|
state = fnvlist_lookup_uint64(tmp,
|
|
|
|
ZPOOL_CONFIG_POOL_STATE);
|
|
|
|
fnvlist_add_uint64(config,
|
|
|
|
ZPOOL_CONFIG_POOL_STATE, state);
|
2011-11-15 19:01:27 +00:00
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
hostid = 0;
|
|
|
|
if (nvlist_lookup_uint64(tmp,
|
|
|
|
ZPOOL_CONFIG_HOSTID, &hostid) == 0) {
|
2012-12-14 20:38:04 +00:00
|
|
|
fnvlist_add_uint64(config,
|
|
|
|
ZPOOL_CONFIG_HOSTID, hostid);
|
|
|
|
hostname = fnvlist_lookup_string(tmp,
|
|
|
|
ZPOOL_CONFIG_HOSTNAME);
|
|
|
|
fnvlist_add_string(config,
|
|
|
|
ZPOOL_CONFIG_HOSTNAME, hostname);
|
2008-11-20 20:01:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
config_seen = B_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Add this top-level vdev to the child array.
|
|
|
|
*/
|
|
|
|
verify(nvlist_lookup_nvlist(tmp,
|
|
|
|
ZPOOL_CONFIG_VDEV_TREE, &nvtop) == 0);
|
|
|
|
verify(nvlist_lookup_uint64(nvtop, ZPOOL_CONFIG_ID,
|
|
|
|
&id) == 0);
|
2010-05-28 20:45:14 +00:00
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
if (id >= children) {
|
|
|
|
nvlist_t **newchild;
|
|
|
|
|
|
|
|
newchild = zfs_alloc(hdl, (id + 1) *
|
|
|
|
sizeof (nvlist_t *));
|
|
|
|
if (newchild == NULL)
|
|
|
|
goto nomem;
|
|
|
|
|
|
|
|
for (c = 0; c < children; c++)
|
|
|
|
newchild[c] = child[c];
|
|
|
|
|
|
|
|
free(child);
|
|
|
|
child = newchild;
|
|
|
|
children = id + 1;
|
|
|
|
}
|
|
|
|
if (nvlist_dup(nvtop, &child[id], 0) != 0)
|
|
|
|
goto nomem;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
/*
|
|
|
|
* If we have information about all the top-levels then
|
|
|
|
* clean up the nvlist which we've constructed. This
|
|
|
|
* means removing any extraneous devices that are
|
|
|
|
* beyond the valid range or adding devices to the end
|
|
|
|
* of our array which appear to be missing.
|
|
|
|
*/
|
|
|
|
if (valid_top_config) {
|
|
|
|
if (max_id < children) {
|
|
|
|
for (c = max_id; c < children; c++)
|
|
|
|
nvlist_free(child[c]);
|
|
|
|
children = max_id;
|
|
|
|
} else if (max_id > children) {
|
|
|
|
nvlist_t **newchild;
|
|
|
|
|
|
|
|
newchild = zfs_alloc(hdl, (max_id) *
|
|
|
|
sizeof (nvlist_t *));
|
|
|
|
if (newchild == NULL)
|
|
|
|
goto nomem;
|
|
|
|
|
|
|
|
for (c = 0; c < children; c++)
|
|
|
|
newchild[c] = child[c];
|
|
|
|
|
|
|
|
free(child);
|
|
|
|
child = newchild;
|
|
|
|
children = max_id;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
|
|
|
|
&guid) == 0);
|
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
/*
|
|
|
|
* The vdev namespace may contain holes as a result of
|
|
|
|
* device removal. We must add them back into the vdev
|
|
|
|
* tree before we process any missing devices.
|
|
|
|
*/
|
|
|
|
if (holes > 0) {
|
|
|
|
ASSERT(valid_top_config);
|
|
|
|
|
|
|
|
for (c = 0; c < children; c++) {
|
|
|
|
nvlist_t *holey;
|
|
|
|
|
|
|
|
if (child[c] != NULL ||
|
|
|
|
!vdev_is_hole(hole_array, holes, c))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (nvlist_alloc(&holey, NV_UNIQUE_NAME,
|
|
|
|
0) != 0)
|
|
|
|
goto nomem;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Holes in the namespace are treated as
|
|
|
|
* "hole" top-level vdevs and have a
|
|
|
|
* special flag set on them.
|
|
|
|
*/
|
|
|
|
if (nvlist_add_string(holey,
|
|
|
|
ZPOOL_CONFIG_TYPE,
|
|
|
|
VDEV_TYPE_HOLE) != 0 ||
|
|
|
|
nvlist_add_uint64(holey,
|
|
|
|
ZPOOL_CONFIG_ID, c) != 0 ||
|
|
|
|
nvlist_add_uint64(holey,
|
|
|
|
ZPOOL_CONFIG_GUID, 0ULL) != 0)
|
|
|
|
goto nomem;
|
|
|
|
child[c] = holey;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
/*
|
|
|
|
* Look for any missing top-level vdevs. If this is the case,
|
|
|
|
* create a faked up 'missing' vdev as a placeholder. We cannot
|
|
|
|
* simply compress the child array, because the kernel performs
|
|
|
|
* certain checks to make sure the vdev IDs match their location
|
|
|
|
* in the configuration.
|
|
|
|
*/
|
2010-05-28 20:45:14 +00:00
|
|
|
for (c = 0; c < children; c++) {
|
2008-11-20 20:01:55 +00:00
|
|
|
if (child[c] == NULL) {
|
|
|
|
nvlist_t *missing;
|
|
|
|
if (nvlist_alloc(&missing, NV_UNIQUE_NAME,
|
|
|
|
0) != 0)
|
|
|
|
goto nomem;
|
|
|
|
if (nvlist_add_string(missing,
|
|
|
|
ZPOOL_CONFIG_TYPE,
|
|
|
|
VDEV_TYPE_MISSING) != 0 ||
|
|
|
|
nvlist_add_uint64(missing,
|
|
|
|
ZPOOL_CONFIG_ID, c) != 0 ||
|
|
|
|
nvlist_add_uint64(missing,
|
|
|
|
ZPOOL_CONFIG_GUID, 0ULL) != 0) {
|
|
|
|
nvlist_free(missing);
|
|
|
|
goto nomem;
|
|
|
|
}
|
|
|
|
child[c] = missing;
|
|
|
|
}
|
2010-05-28 20:45:14 +00:00
|
|
|
}
|
2008-11-20 20:01:55 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Put all of this pool's top-level vdevs into a root vdev.
|
|
|
|
*/
|
|
|
|
if (nvlist_alloc(&nvroot, NV_UNIQUE_NAME, 0) != 0)
|
|
|
|
goto nomem;
|
|
|
|
if (nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE,
|
|
|
|
VDEV_TYPE_ROOT) != 0 ||
|
|
|
|
nvlist_add_uint64(nvroot, ZPOOL_CONFIG_ID, 0ULL) != 0 ||
|
|
|
|
nvlist_add_uint64(nvroot, ZPOOL_CONFIG_GUID, guid) != 0 ||
|
|
|
|
nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
|
|
|
|
child, children) != 0) {
|
|
|
|
nvlist_free(nvroot);
|
|
|
|
goto nomem;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (c = 0; c < children; c++)
|
|
|
|
nvlist_free(child[c]);
|
|
|
|
free(child);
|
|
|
|
children = 0;
|
|
|
|
child = NULL;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Go through and fix up any paths and/or devids based on our
|
|
|
|
* known list of vdev GUID -> path mappings.
|
|
|
|
*/
|
|
|
|
if (fix_paths(nvroot, pl->names) != 0) {
|
|
|
|
nvlist_free(nvroot);
|
|
|
|
goto nomem;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Add the root vdev to this pool's configuration.
|
|
|
|
*/
|
|
|
|
if (nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
|
|
|
|
nvroot) != 0) {
|
|
|
|
nvlist_free(nvroot);
|
|
|
|
goto nomem;
|
|
|
|
}
|
|
|
|
nvlist_free(nvroot);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* zdb uses this path to report on active pools that were
|
|
|
|
* imported or created using -R.
|
|
|
|
*/
|
|
|
|
if (active_ok)
|
|
|
|
goto add_pool;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Determine if this pool is currently active, in which case we
|
|
|
|
* can't actually import it.
|
|
|
|
*/
|
|
|
|
verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
|
|
|
|
&name) == 0);
|
|
|
|
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
|
|
|
|
&guid) == 0);
|
|
|
|
|
|
|
|
if (pool_active(hdl, name, guid, &isactive) != 0)
|
|
|
|
goto error;
|
|
|
|
|
|
|
|
if (isactive) {
|
|
|
|
nvlist_free(config);
|
|
|
|
config = NULL;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
if ((nvl = refresh_config(hdl, config)) == NULL) {
|
|
|
|
nvlist_free(config);
|
|
|
|
config = NULL;
|
|
|
|
continue;
|
|
|
|
}
|
2008-11-20 20:01:55 +00:00
|
|
|
|
|
|
|
nvlist_free(config);
|
|
|
|
config = nvl;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Go through and update the paths for spares, now that we have
|
|
|
|
* them.
|
|
|
|
*/
|
|
|
|
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
|
|
|
|
&nvroot) == 0);
|
|
|
|
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
|
|
|
|
&spares, &nspares) == 0) {
|
|
|
|
for (i = 0; i < nspares; i++) {
|
|
|
|
if (fix_paths(spares[i], pl->names) != 0)
|
|
|
|
goto nomem;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Update the paths for l2cache devices.
|
|
|
|
*/
|
|
|
|
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
|
|
|
|
&l2cache, &nl2cache) == 0) {
|
|
|
|
for (i = 0; i < nl2cache; i++) {
|
|
|
|
if (fix_paths(l2cache[i], pl->names) != 0)
|
|
|
|
goto nomem;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Restore the original information read from the actual label.
|
|
|
|
*/
|
|
|
|
(void) nvlist_remove(config, ZPOOL_CONFIG_HOSTID,
|
|
|
|
DATA_TYPE_UINT64);
|
|
|
|
(void) nvlist_remove(config, ZPOOL_CONFIG_HOSTNAME,
|
|
|
|
DATA_TYPE_STRING);
|
|
|
|
if (hostid != 0) {
|
|
|
|
verify(nvlist_add_uint64(config, ZPOOL_CONFIG_HOSTID,
|
|
|
|
hostid) == 0);
|
|
|
|
verify(nvlist_add_string(config, ZPOOL_CONFIG_HOSTNAME,
|
|
|
|
hostname) == 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
add_pool:
|
|
|
|
/*
|
|
|
|
* Add this pool to the list of configs.
|
|
|
|
*/
|
|
|
|
verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
|
|
|
|
&name) == 0);
|
|
|
|
if (nvlist_add_nvlist(ret, name, config) != 0)
|
|
|
|
goto nomem;
|
|
|
|
|
2008-12-03 20:09:06 +00:00
|
|
|
found_one = B_TRUE;
|
2008-11-20 20:01:55 +00:00
|
|
|
nvlist_free(config);
|
|
|
|
config = NULL;
|
|
|
|
}
|
|
|
|
|
2008-12-03 20:09:06 +00:00
|
|
|
if (!found_one) {
|
|
|
|
nvlist_free(ret);
|
|
|
|
ret = NULL;
|
|
|
|
}
|
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
return (ret);
|
|
|
|
|
|
|
|
nomem:
|
|
|
|
(void) no_memory(hdl);
|
|
|
|
error:
|
|
|
|
nvlist_free(config);
|
|
|
|
nvlist_free(ret);
|
|
|
|
for (c = 0; c < children; c++)
|
|
|
|
nvlist_free(child[c]);
|
|
|
|
free(child);
|
|
|
|
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Return the offset of the given label.
|
|
|
|
*/
|
|
|
|
static uint64_t
|
|
|
|
label_offset(uint64_t size, int l)
|
|
|
|
{
|
|
|
|
ASSERT(P2PHASE_TYPED(size, sizeof (vdev_label_t), uint64_t) == 0);
|
|
|
|
return (l * sizeof (vdev_label_t) + (l < VDEV_LABELS / 2 ?
|
|
|
|
0 : size - VDEV_LABELS * sizeof (vdev_label_t)));
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Given a file descriptor, read the label information and return an nvlist
|
|
|
|
* describing the configuration, if there is one.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
zpool_read_label(int fd, nvlist_t **config)
|
|
|
|
{
|
|
|
|
struct stat64 statbuf;
|
|
|
|
int l;
|
|
|
|
vdev_label_t *label;
|
|
|
|
uint64_t state, txg, size;
|
|
|
|
|
|
|
|
*config = NULL;
|
|
|
|
|
2013-07-09 22:13:40 +00:00
|
|
|
if (fstat64_blk(fd, &statbuf) == -1)
|
2008-11-20 20:01:55 +00:00
|
|
|
return (0);
|
|
|
|
size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t);
|
|
|
|
|
|
|
|
if ((label = malloc(sizeof (vdev_label_t))) == NULL)
|
|
|
|
return (-1);
|
|
|
|
|
|
|
|
for (l = 0; l < VDEV_LABELS; l++) {
|
2008-12-03 20:09:06 +00:00
|
|
|
if (pread64(fd, label, sizeof (vdev_label_t),
|
2008-11-20 20:01:55 +00:00
|
|
|
label_offset(size, l)) != sizeof (vdev_label_t))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (nvlist_unpack(label->vl_vdev_phys.vp_nvlist,
|
|
|
|
sizeof (label->vl_vdev_phys.vp_nvlist), config, 0) != 0)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_STATE,
|
|
|
|
&state) != 0 || state > POOL_STATE_L2CACHE) {
|
|
|
|
nvlist_free(*config);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (state != POOL_STATE_SPARE && state != POOL_STATE_L2CACHE &&
|
|
|
|
(nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_TXG,
|
|
|
|
&txg) != 0 || txg == 0)) {
|
|
|
|
nvlist_free(*config);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
free(label);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
free(label);
|
|
|
|
*config = NULL;
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
2013-07-05 10:44:53 +00:00
|
|
|
/*
|
|
|
|
* Given a file descriptor, clear (zero) the label information. This function
|
2013-07-05 11:01:44 +00:00
|
|
|
* is used in the appliance stack as part of the ZFS sysevent module and
|
|
|
|
* to implement the "zpool labelclear" command.
|
2013-07-05 10:44:53 +00:00
|
|
|
*/
|
|
|
|
int
|
|
|
|
zpool_clear_label(int fd)
|
|
|
|
{
|
|
|
|
struct stat64 statbuf;
|
|
|
|
int l;
|
|
|
|
vdev_label_t *label;
|
|
|
|
uint64_t size;
|
|
|
|
|
|
|
|
if (fstat64_blk(fd, &statbuf) == -1)
|
|
|
|
return (0);
|
|
|
|
size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t);
|
|
|
|
|
|
|
|
if ((label = calloc(sizeof (vdev_label_t), 1)) == NULL)
|
|
|
|
return (-1);
|
|
|
|
|
|
|
|
for (l = 0; l < VDEV_LABELS; l++) {
|
|
|
|
if (pwrite64(fd, label, sizeof (vdev_label_t),
|
2014-04-23 03:35:38 +00:00
|
|
|
label_offset(size, l)) != sizeof (vdev_label_t)) {
|
|
|
|
free(label);
|
2013-07-05 10:44:53 +00:00
|
|
|
return (-1);
|
2014-04-23 03:35:38 +00:00
|
|
|
}
|
2013-07-05 10:44:53 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
free(label);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
#ifdef HAVE_LIBBLKID
|
|
|
|
/*
|
|
|
|
* Use libblkid to quickly search for zfs devices
|
|
|
|
*/
|
2010-05-28 20:45:14 +00:00
|
|
|
static int
|
2010-08-26 18:56:53 +00:00
|
|
|
zpool_find_import_blkid(libzfs_handle_t *hdl, pool_list_t *pools)
|
2010-05-28 20:45:14 +00:00
|
|
|
{
|
2010-08-26 18:56:53 +00:00
|
|
|
blkid_cache cache;
|
|
|
|
blkid_dev_iterate iter;
|
|
|
|
blkid_dev dev;
|
|
|
|
const char *devname;
|
2010-05-28 20:45:14 +00:00
|
|
|
nvlist_t *config;
|
2010-08-26 18:56:53 +00:00
|
|
|
int fd, err;
|
2010-05-28 20:45:14 +00:00
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
err = blkid_get_cache(&cache, NULL);
|
|
|
|
if (err != 0) {
|
|
|
|
(void) zfs_error_fmt(hdl, EZFS_BADCACHE,
|
|
|
|
dgettext(TEXT_DOMAIN, "blkid_get_cache() %d"), err);
|
|
|
|
goto err_blkid1;
|
2010-05-28 20:45:14 +00:00
|
|
|
}
|
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
err = blkid_probe_all(cache);
|
|
|
|
if (err != 0) {
|
|
|
|
(void) zfs_error_fmt(hdl, EZFS_BADCACHE,
|
|
|
|
dgettext(TEXT_DOMAIN, "blkid_probe_all() %d"), err);
|
|
|
|
goto err_blkid2;
|
2010-05-28 20:45:14 +00:00
|
|
|
}
|
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
iter = blkid_dev_iterate_begin(cache);
|
|
|
|
if (iter == NULL) {
|
|
|
|
(void) zfs_error_fmt(hdl, EZFS_BADCACHE,
|
|
|
|
dgettext(TEXT_DOMAIN, "blkid_dev_iterate_begin()"));
|
|
|
|
goto err_blkid2;
|
|
|
|
}
|
2010-05-28 20:45:14 +00:00
|
|
|
|
2013-08-28 20:17:47 +00:00
|
|
|
err = blkid_dev_set_search(iter, "TYPE", "zfs_member");
|
2010-08-26 18:56:53 +00:00
|
|
|
if (err != 0) {
|
|
|
|
(void) zfs_error_fmt(hdl, EZFS_BADCACHE,
|
|
|
|
dgettext(TEXT_DOMAIN, "blkid_dev_set_search() %d"), err);
|
|
|
|
goto err_blkid3;
|
2010-05-28 20:45:14 +00:00
|
|
|
}
|
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
while (blkid_dev_next(iter, &dev) == 0) {
|
|
|
|
devname = blkid_dev_devname(dev);
|
|
|
|
if ((fd = open64(devname, O_RDONLY)) < 0)
|
|
|
|
continue;
|
2010-05-28 20:45:14 +00:00
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
err = zpool_read_label(fd, &config);
|
|
|
|
(void) close(fd);
|
2010-05-28 20:45:14 +00:00
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
if (err != 0) {
|
|
|
|
(void) no_memory(hdl);
|
|
|
|
goto err_blkid3;
|
|
|
|
}
|
2010-05-28 20:45:14 +00:00
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
if (config != NULL) {
|
2012-09-15 20:25:21 +00:00
|
|
|
err = add_config(hdl, pools, devname, 0, config);
|
2010-08-26 18:56:53 +00:00
|
|
|
if (err != 0)
|
|
|
|
goto err_blkid3;
|
|
|
|
}
|
2010-05-28 20:45:14 +00:00
|
|
|
}
|
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
err_blkid3:
|
|
|
|
blkid_dev_iterate_end(iter);
|
|
|
|
err_blkid2:
|
|
|
|
blkid_put_cache(cache);
|
|
|
|
err_blkid1:
|
2013-11-01 19:26:11 +00:00
|
|
|
return (err);
|
2010-05-28 20:45:14 +00:00
|
|
|
}
|
2010-08-26 18:56:53 +00:00
|
|
|
#endif /* HAVE_LIBBLKID */
|
2010-05-28 20:45:14 +00:00
|
|
|
|
2012-10-17 23:58:54 +00:00
|
|
|
char *
|
2012-09-15 20:25:21 +00:00
|
|
|
zpool_default_import_path[DEFAULT_IMPORT_PATH_SIZE] = {
|
|
|
|
"/dev/disk/by-vdev", /* Custom rules, use first if they exist */
|
|
|
|
"/dev/mapper", /* Use multipath devices before components */
|
|
|
|
"/dev/disk/by-uuid", /* Single unique entry and persistent */
|
|
|
|
"/dev/disk/by-id", /* May be multiple entries and persistent */
|
|
|
|
"/dev/disk/by-path", /* Encodes physical location and persistent */
|
|
|
|
"/dev/disk/by-label", /* Custom persistent labels */
|
|
|
|
"/dev" /* UNSAFE device names will change */
|
|
|
|
};
|
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
/*
|
|
|
|
* Given a list of directories to search, find all pools stored on disk. This
|
|
|
|
* includes partial pools which are not available to import. If no args are
|
|
|
|
* given (argc is 0), then the default directory (/dev/dsk) is searched.
|
2008-12-03 20:09:06 +00:00
|
|
|
* poolname or guid (but not both) are provided by the caller when trying
|
|
|
|
* to import a specific pool.
|
2008-11-20 20:01:55 +00:00
|
|
|
*/
|
2008-12-03 20:09:06 +00:00
|
|
|
static nvlist_t *
|
2010-05-28 20:45:14 +00:00
|
|
|
zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg)
|
2008-11-20 20:01:55 +00:00
|
|
|
{
|
2010-05-28 20:45:14 +00:00
|
|
|
int i, dirs = iarg->paths;
|
2008-11-20 20:01:55 +00:00
|
|
|
DIR *dirp = NULL;
|
|
|
|
struct dirent64 *dp;
|
|
|
|
char path[MAXPATHLEN];
|
2010-05-28 20:45:14 +00:00
|
|
|
char *end, **dir = iarg->path;
|
2008-11-20 20:01:55 +00:00
|
|
|
size_t pathleft;
|
2010-08-26 18:56:53 +00:00
|
|
|
struct stat64 statbuf;
|
|
|
|
nvlist_t *ret = NULL, *config;
|
|
|
|
int fd;
|
2008-11-20 20:01:55 +00:00
|
|
|
pool_list_t pools = { 0 };
|
|
|
|
pool_entry_t *pe, *penext;
|
|
|
|
vdev_entry_t *ve, *venext;
|
|
|
|
config_entry_t *ce, *cenext;
|
|
|
|
name_entry_t *ne, *nenext;
|
2010-08-26 18:56:53 +00:00
|
|
|
|
|
|
|
verify(iarg->poolname == NULL || iarg->guid == 0);
|
2008-11-20 20:01:55 +00:00
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
if (dirs == 0) {
|
2010-08-26 18:56:53 +00:00
|
|
|
#ifdef HAVE_LIBBLKID
|
|
|
|
/* Use libblkid to scan all device for their type */
|
|
|
|
if (zpool_find_import_blkid(hdl, &pools) == 0)
|
|
|
|
goto skip_scanning;
|
|
|
|
|
|
|
|
(void) zfs_error_fmt(hdl, EZFS_BADCACHE,
|
|
|
|
dgettext(TEXT_DOMAIN, "blkid failure falling back "
|
|
|
|
"to manual probing"));
|
|
|
|
#endif /* HAVE_LIBBLKID */
|
2012-09-15 20:25:21 +00:00
|
|
|
|
|
|
|
dir = zpool_default_import_path;
|
|
|
|
dirs = DEFAULT_IMPORT_PATH_SIZE;
|
2008-11-20 20:01:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Go through and read the label configuration information from every
|
|
|
|
* possible device, organizing the information according to pool GUID
|
|
|
|
* and toplevel GUID.
|
|
|
|
*/
|
2010-05-28 20:45:14 +00:00
|
|
|
for (i = 0; i < dirs; i++) {
|
2008-11-20 20:01:55 +00:00
|
|
|
char *rdsk;
|
|
|
|
int dfd;
|
|
|
|
|
|
|
|
/* use realpath to normalize the path */
|
2010-05-28 20:45:14 +00:00
|
|
|
if (realpath(dir[i], path) == 0) {
|
2012-09-15 20:25:21 +00:00
|
|
|
|
|
|
|
/* it is safe to skip missing search paths */
|
|
|
|
if (errno == ENOENT)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
zfs_error_aux(hdl, strerror(errno));
|
2008-11-20 20:01:55 +00:00
|
|
|
(void) zfs_error_fmt(hdl, EZFS_BADPATH,
|
2010-05-28 20:45:14 +00:00
|
|
|
dgettext(TEXT_DOMAIN, "cannot open '%s'"), dir[i]);
|
2008-11-20 20:01:55 +00:00
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
end = &path[strlen(path)];
|
|
|
|
*end++ = '/';
|
|
|
|
*end = 0;
|
|
|
|
pathleft = &path[sizeof (path)] - end;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Using raw devices instead of block devices when we're
|
|
|
|
* reading the labels skips a bunch of slow operations during
|
|
|
|
* close(2) processing, so we replace /dev/dsk with /dev/rdsk.
|
|
|
|
*/
|
|
|
|
if (strcmp(path, "/dev/dsk/") == 0)
|
|
|
|
rdsk = "/dev/rdsk/";
|
|
|
|
else
|
|
|
|
rdsk = path;
|
|
|
|
|
|
|
|
if ((dfd = open64(rdsk, O_RDONLY)) < 0 ||
|
|
|
|
(dirp = fdopendir(dfd)) == NULL) {
|
|
|
|
zfs_error_aux(hdl, strerror(errno));
|
|
|
|
(void) zfs_error_fmt(hdl, EZFS_BADPATH,
|
|
|
|
dgettext(TEXT_DOMAIN, "cannot open '%s'"),
|
|
|
|
rdsk);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This is not MT-safe, but we have no MT consumers of libzfs
|
|
|
|
*/
|
|
|
|
while ((dp = readdir64(dirp)) != NULL) {
|
|
|
|
const char *name = dp->d_name;
|
|
|
|
if (name[0] == '.' &&
|
|
|
|
(name[1] == 0 || (name[1] == '.' && name[2] == 0)))
|
|
|
|
continue;
|
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
/*
|
|
|
|
* Skip checking devices with well known prefixes:
|
|
|
|
* watchdog - A special close is required to avoid
|
|
|
|
* triggering it and resetting the system.
|
|
|
|
* fuse - Fuse control device.
|
|
|
|
* ppp - Generic PPP driver.
|
|
|
|
* tty* - Generic serial interface.
|
|
|
|
* vcs* - Virtual console memory.
|
|
|
|
* parport* - Parallel port interface.
|
|
|
|
* lp* - Printer interface.
|
|
|
|
* fd* - Floppy interface.
|
2011-02-17 17:21:39 +00:00
|
|
|
* hpet - High Precision Event Timer, crashes qemu
|
|
|
|
* when accessed from a virtual machine.
|
|
|
|
* core - Symlink to /proc/kcore, causes a crash
|
|
|
|
* when access from Xen dom0.
|
2010-08-26 18:56:53 +00:00
|
|
|
*/
|
|
|
|
if ((strncmp(name, "watchdog", 8) == 0) ||
|
2013-11-01 19:26:11 +00:00
|
|
|
(strncmp(name, "fuse", 4) == 0) ||
|
|
|
|
(strncmp(name, "ppp", 3) == 0) ||
|
|
|
|
(strncmp(name, "tty", 3) == 0) ||
|
|
|
|
(strncmp(name, "vcs", 3) == 0) ||
|
|
|
|
(strncmp(name, "parport", 7) == 0) ||
|
|
|
|
(strncmp(name, "lp", 2) == 0) ||
|
|
|
|
(strncmp(name, "fd", 2) == 0) ||
|
|
|
|
(strncmp(name, "hpet", 4) == 0) ||
|
2011-02-17 17:21:39 +00:00
|
|
|
(strncmp(name, "core", 4) == 0))
|
2010-08-26 18:56:53 +00:00
|
|
|
continue;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Ignore failed stats. We only want regular
|
2011-02-17 17:21:39 +00:00
|
|
|
* files and block devices.
|
2010-08-26 18:56:53 +00:00
|
|
|
*/
|
2011-02-17 17:21:39 +00:00
|
|
|
if ((fstatat64(dfd, name, &statbuf, 0) != 0) ||
|
2010-08-26 18:56:53 +00:00
|
|
|
(!S_ISREG(statbuf.st_mode) &&
|
2011-02-17 17:21:39 +00:00
|
|
|
!S_ISBLK(statbuf.st_mode)))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if ((fd = openat64(dfd, name, O_RDONLY)) < 0)
|
2010-08-26 18:56:53 +00:00
|
|
|
continue;
|
|
|
|
|
|
|
|
if ((zpool_read_label(fd, &config)) != 0) {
|
|
|
|
(void) close(fd);
|
|
|
|
(void) no_memory(hdl);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
(void) close(fd);
|
|
|
|
|
|
|
|
if (config != NULL) {
|
2008-12-03 20:09:06 +00:00
|
|
|
boolean_t matched = B_TRUE;
|
2012-10-19 04:36:07 +00:00
|
|
|
char *pname;
|
2008-12-03 20:09:06 +00:00
|
|
|
|
2012-10-19 04:36:07 +00:00
|
|
|
if ((iarg->poolname != NULL) &&
|
|
|
|
(nvlist_lookup_string(config,
|
|
|
|
ZPOOL_CONFIG_POOL_NAME, &pname) == 0)) {
|
|
|
|
|
|
|
|
if (strcmp(iarg->poolname, pname))
|
2013-11-01 19:26:11 +00:00
|
|
|
matched = B_FALSE;
|
2008-12-03 20:09:06 +00:00
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
} else if (iarg->guid != 0) {
|
2008-12-03 20:09:06 +00:00
|
|
|
uint64_t this_guid;
|
|
|
|
|
|
|
|
matched = nvlist_lookup_uint64(config,
|
|
|
|
ZPOOL_CONFIG_POOL_GUID,
|
|
|
|
&this_guid) == 0 &&
|
2010-05-28 20:45:14 +00:00
|
|
|
iarg->guid == this_guid;
|
2008-12-03 20:09:06 +00:00
|
|
|
}
|
|
|
|
if (!matched) {
|
|
|
|
nvlist_free(config);
|
|
|
|
config = NULL;
|
|
|
|
continue;
|
|
|
|
}
|
2008-11-20 20:01:55 +00:00
|
|
|
/* use the non-raw path for the config */
|
2010-08-26 18:56:53 +00:00
|
|
|
(void) strlcpy(end, name, pathleft);
|
2012-09-15 20:25:21 +00:00
|
|
|
if (add_config(hdl, &pools, path, i+1, config))
|
2008-11-20 20:01:55 +00:00
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
(void) closedir(dirp);
|
|
|
|
dirp = NULL;
|
|
|
|
}
|
|
|
|
|
2010-08-26 18:56:53 +00:00
|
|
|
#ifdef HAVE_LIBBLKID
|
|
|
|
skip_scanning:
|
|
|
|
#endif
|
2010-05-28 20:45:14 +00:00
|
|
|
ret = get_configs(hdl, &pools, iarg->can_be_active);
|
2008-11-20 20:01:55 +00:00
|
|
|
|
|
|
|
error:
|
|
|
|
for (pe = pools.pools; pe != NULL; pe = penext) {
|
|
|
|
penext = pe->pe_next;
|
|
|
|
for (ve = pe->pe_vdevs; ve != NULL; ve = venext) {
|
|
|
|
venext = ve->ve_next;
|
|
|
|
for (ce = ve->ve_configs; ce != NULL; ce = cenext) {
|
|
|
|
cenext = ce->ce_next;
|
|
|
|
if (ce->ce_config)
|
|
|
|
nvlist_free(ce->ce_config);
|
|
|
|
free(ce);
|
|
|
|
}
|
|
|
|
free(ve);
|
|
|
|
}
|
|
|
|
free(pe);
|
|
|
|
}
|
|
|
|
|
|
|
|
for (ne = pools.names; ne != NULL; ne = nenext) {
|
|
|
|
nenext = ne->ne_next;
|
|
|
|
if (ne->ne_name)
|
|
|
|
free(ne->ne_name);
|
|
|
|
free(ne);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dirp)
|
|
|
|
(void) closedir(dirp);
|
|
|
|
|
|
|
|
return (ret);
|
|
|
|
}
|
|
|
|
|
2008-12-03 20:09:06 +00:00
|
|
|
nvlist_t *
|
|
|
|
zpool_find_import(libzfs_handle_t *hdl, int argc, char **argv)
|
|
|
|
{
|
2010-05-28 20:45:14 +00:00
|
|
|
importargs_t iarg = { 0 };
|
2008-12-03 20:09:06 +00:00
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
iarg.paths = argc;
|
|
|
|
iarg.path = argv;
|
2008-12-03 20:09:06 +00:00
|
|
|
|
2010-05-28 20:45:14 +00:00
|
|
|
return (zpool_find_import_impl(hdl, &iarg));
|
2008-12-03 20:09:06 +00:00
|
|
|
}
|
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
/*
|
|
|
|
* Given a cache file, return the contents as a list of importable pools.
|
2008-12-03 20:09:06 +00:00
|
|
|
* poolname or guid (but not both) are provided by the caller when trying
|
|
|
|
* to import a specific pool.
|
2008-11-20 20:01:55 +00:00
|
|
|
*/
|
|
|
|
nvlist_t *
|
|
|
|
zpool_find_import_cached(libzfs_handle_t *hdl, const char *cachefile,
|
2008-12-03 20:09:06 +00:00
|
|
|
char *poolname, uint64_t guid)
|
2008-11-20 20:01:55 +00:00
|
|
|
{
|
|
|
|
char *buf;
|
|
|
|
int fd;
|
|
|
|
struct stat64 statbuf;
|
|
|
|
nvlist_t *raw, *src, *dst;
|
|
|
|
nvlist_t *pools;
|
|
|
|
nvpair_t *elem;
|
|
|
|
char *name;
|
2008-12-03 20:09:06 +00:00
|
|
|
uint64_t this_guid;
|
2008-11-20 20:01:55 +00:00
|
|
|
boolean_t active;
|
|
|
|
|
2008-12-03 20:09:06 +00:00
|
|
|
verify(poolname == NULL || guid == 0);
|
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
if ((fd = open(cachefile, O_RDONLY)) < 0) {
|
|
|
|
zfs_error_aux(hdl, "%s", strerror(errno));
|
|
|
|
(void) zfs_error(hdl, EZFS_BADCACHE,
|
|
|
|
dgettext(TEXT_DOMAIN, "failed to open cache file"));
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (fstat64(fd, &statbuf) != 0) {
|
|
|
|
zfs_error_aux(hdl, "%s", strerror(errno));
|
|
|
|
(void) close(fd);
|
|
|
|
(void) zfs_error(hdl, EZFS_BADCACHE,
|
|
|
|
dgettext(TEXT_DOMAIN, "failed to get size of cache file"));
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((buf = zfs_alloc(hdl, statbuf.st_size)) == NULL) {
|
|
|
|
(void) close(fd);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
|
|
|
|
(void) close(fd);
|
|
|
|
free(buf);
|
|
|
|
(void) zfs_error(hdl, EZFS_BADCACHE,
|
|
|
|
dgettext(TEXT_DOMAIN,
|
|
|
|
"failed to read cache file contents"));
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
(void) close(fd);
|
|
|
|
|
|
|
|
if (nvlist_unpack(buf, statbuf.st_size, &raw, 0) != 0) {
|
|
|
|
free(buf);
|
|
|
|
(void) zfs_error(hdl, EZFS_BADCACHE,
|
|
|
|
dgettext(TEXT_DOMAIN,
|
|
|
|
"invalid or corrupt cache file contents"));
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
free(buf);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Go through and get the current state of the pools and refresh their
|
|
|
|
* state.
|
|
|
|
*/
|
|
|
|
if (nvlist_alloc(&pools, 0, 0) != 0) {
|
|
|
|
(void) no_memory(hdl);
|
|
|
|
nvlist_free(raw);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
elem = NULL;
|
|
|
|
while ((elem = nvlist_next_nvpair(raw, elem)) != NULL) {
|
|
|
|
verify(nvpair_value_nvlist(elem, &src) == 0);
|
|
|
|
|
|
|
|
verify(nvlist_lookup_string(src, ZPOOL_CONFIG_POOL_NAME,
|
|
|
|
&name) == 0);
|
2008-12-03 20:09:06 +00:00
|
|
|
if (poolname != NULL && strcmp(poolname, name) != 0)
|
|
|
|
continue;
|
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
verify(nvlist_lookup_uint64(src, ZPOOL_CONFIG_POOL_GUID,
|
2008-12-03 20:09:06 +00:00
|
|
|
&this_guid) == 0);
|
|
|
|
if (guid != 0) {
|
|
|
|
verify(nvlist_lookup_uint64(src, ZPOOL_CONFIG_POOL_GUID,
|
|
|
|
&this_guid) == 0);
|
|
|
|
if (guid != this_guid)
|
|
|
|
continue;
|
|
|
|
}
|
2008-11-20 20:01:55 +00:00
|
|
|
|
2008-12-03 20:09:06 +00:00
|
|
|
if (pool_active(hdl, name, this_guid, &active) != 0) {
|
|
|
|
nvlist_free(raw);
|
|
|
|
nvlist_free(pools);
|
|
|
|
return (NULL);
|
|
|
|
}
|
2008-11-20 20:01:55 +00:00
|
|
|
|
2008-12-03 20:09:06 +00:00
|
|
|
if (active)
|
|
|
|
continue;
|
2008-11-20 20:01:55 +00:00
|
|
|
|
2008-12-03 20:09:06 +00:00
|
|
|
if ((dst = refresh_config(hdl, src)) == NULL) {
|
|
|
|
nvlist_free(raw);
|
|
|
|
nvlist_free(pools);
|
|
|
|
return (NULL);
|
|
|
|
}
|
2008-11-20 20:01:55 +00:00
|
|
|
|
2008-12-03 20:09:06 +00:00
|
|
|
if (nvlist_add_nvlist(pools, nvpair_name(elem), dst) != 0) {
|
|
|
|
(void) no_memory(hdl);
|
2008-11-20 20:01:55 +00:00
|
|
|
nvlist_free(dst);
|
2008-12-03 20:09:06 +00:00
|
|
|
nvlist_free(raw);
|
|
|
|
nvlist_free(pools);
|
|
|
|
return (NULL);
|
2008-11-20 20:01:55 +00:00
|
|
|
}
|
2008-12-03 20:09:06 +00:00
|
|
|
nvlist_free(dst);
|
2008-11-20 20:01:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
nvlist_free(raw);
|
|
|
|
return (pools);
|
|
|
|
}
|
|
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2010-05-28 20:45:14 +00:00
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|
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static int
|
|
|
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name_or_guid_exists(zpool_handle_t *zhp, void *data)
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|
|
|
{
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|
|
importargs_t *import = data;
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|
|
int found = 0;
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|
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if (import->poolname != NULL) {
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char *pool_name;
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verify(nvlist_lookup_string(zhp->zpool_config,
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ZPOOL_CONFIG_POOL_NAME, &pool_name) == 0);
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|
|
if (strcmp(pool_name, import->poolname) == 0)
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found = 1;
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|
} else {
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uint64_t pool_guid;
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verify(nvlist_lookup_uint64(zhp->zpool_config,
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ZPOOL_CONFIG_POOL_GUID, &pool_guid) == 0);
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if (pool_guid == import->guid)
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found = 1;
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}
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zpool_close(zhp);
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return (found);
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}
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nvlist_t *
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zpool_search_import(libzfs_handle_t *hdl, importargs_t *import)
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{
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verify(import->poolname == NULL || import->guid == 0);
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if (import->unique)
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import->exists = zpool_iter(hdl, name_or_guid_exists, import);
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|
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if (import->cachefile != NULL)
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return (zpool_find_import_cached(hdl, import->cachefile,
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import->poolname, import->guid));
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return (zpool_find_import_impl(hdl, import));
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}
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2008-11-20 20:01:55 +00:00
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boolean_t
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find_guid(nvlist_t *nv, uint64_t guid)
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|
|
{
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uint64_t tmp;
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nvlist_t **child;
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uint_t c, children;
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verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &tmp) == 0);
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if (tmp == guid)
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return (B_TRUE);
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if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
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&child, &children) == 0) {
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for (c = 0; c < children; c++)
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if (find_guid(child[c], guid))
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return (B_TRUE);
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}
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|
|
return (B_FALSE);
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}
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|
|
typedef struct aux_cbdata {
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|
|
const char *cb_type;
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|
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uint64_t cb_guid;
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zpool_handle_t *cb_zhp;
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|
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} aux_cbdata_t;
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|
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static int
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find_aux(zpool_handle_t *zhp, void *data)
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|
|
|
{
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|
|
aux_cbdata_t *cbp = data;
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|
|
nvlist_t **list;
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|
|
uint_t i, count;
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|
|
uint64_t guid;
|
|
|
|
nvlist_t *nvroot;
|
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|
|
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|
|
|
verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE,
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|
|
&nvroot) == 0);
|
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|
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|
|
if (nvlist_lookup_nvlist_array(nvroot, cbp->cb_type,
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|
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&list, &count) == 0) {
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|
|
for (i = 0; i < count; i++) {
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|
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verify(nvlist_lookup_uint64(list[i],
|
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|
|
ZPOOL_CONFIG_GUID, &guid) == 0);
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|
|
if (guid == cbp->cb_guid) {
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|
|
cbp->cb_zhp = zhp;
|
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|
|
return (1);
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|
|
}
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|
|
}
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|
|
}
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|
|
zpool_close(zhp);
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|
|
return (0);
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|
|
|
}
|
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|
|
|
|
|
/*
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|
|
* Determines if the pool is in use. If so, it returns true and the state of
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|
|
* the pool as well as the name of the pool. Both strings are allocated and
|
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|
|
* must be freed by the caller.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
zpool_in_use(libzfs_handle_t *hdl, int fd, pool_state_t *state, char **namestr,
|
|
|
|
boolean_t *inuse)
|
|
|
|
{
|
|
|
|
nvlist_t *config;
|
|
|
|
char *name;
|
|
|
|
boolean_t ret;
|
|
|
|
uint64_t guid, vdev_guid;
|
|
|
|
zpool_handle_t *zhp;
|
|
|
|
nvlist_t *pool_config;
|
|
|
|
uint64_t stateval, isspare;
|
|
|
|
aux_cbdata_t cb = { 0 };
|
|
|
|
boolean_t isactive;
|
|
|
|
|
|
|
|
*inuse = B_FALSE;
|
|
|
|
|
|
|
|
if (zpool_read_label(fd, &config) != 0) {
|
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|
|
(void) no_memory(hdl);
|
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|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (config == NULL)
|
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|
|
return (0);
|
|
|
|
|
|
|
|
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
|
|
|
|
&stateval) == 0);
|
|
|
|
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID,
|
|
|
|
&vdev_guid) == 0);
|
|
|
|
|
|
|
|
if (stateval != POOL_STATE_SPARE && stateval != POOL_STATE_L2CACHE) {
|
|
|
|
verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
|
|
|
|
&name) == 0);
|
|
|
|
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
|
|
|
|
&guid) == 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (stateval) {
|
|
|
|
case POOL_STATE_EXPORTED:
|
2010-08-26 21:24:34 +00:00
|
|
|
/*
|
|
|
|
* A pool with an exported state may in fact be imported
|
|
|
|
* read-only, so check the in-core state to see if it's
|
|
|
|
* active and imported read-only. If it is, set
|
|
|
|
* its state to active.
|
|
|
|
*/
|
|
|
|
if (pool_active(hdl, name, guid, &isactive) == 0 && isactive &&
|
|
|
|
(zhp = zpool_open_canfail(hdl, name)) != NULL &&
|
|
|
|
zpool_get_prop_int(zhp, ZPOOL_PROP_READONLY, NULL))
|
|
|
|
stateval = POOL_STATE_ACTIVE;
|
|
|
|
|
2008-11-20 20:01:55 +00:00
|
|
|
ret = B_TRUE;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case POOL_STATE_ACTIVE:
|
|
|
|
/*
|
|
|
|
* For an active pool, we have to determine if it's really part
|
|
|
|
* of a currently active pool (in which case the pool will exist
|
|
|
|
* and the guid will be the same), or whether it's part of an
|
|
|
|
* active pool that was disconnected without being explicitly
|
|
|
|
* exported.
|
|
|
|
*/
|
|
|
|
if (pool_active(hdl, name, guid, &isactive) != 0) {
|
|
|
|
nvlist_free(config);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isactive) {
|
|
|
|
/*
|
|
|
|
* Because the device may have been removed while
|
|
|
|
* offlined, we only report it as active if the vdev is
|
|
|
|
* still present in the config. Otherwise, pretend like
|
|
|
|
* it's not in use.
|
|
|
|
*/
|
|
|
|
if ((zhp = zpool_open_canfail(hdl, name)) != NULL &&
|
|
|
|
(pool_config = zpool_get_config(zhp, NULL))
|
|
|
|
!= NULL) {
|
|
|
|
nvlist_t *nvroot;
|
|
|
|
|
|
|
|
verify(nvlist_lookup_nvlist(pool_config,
|
|
|
|
ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0);
|
|
|
|
ret = find_guid(nvroot, vdev_guid);
|
|
|
|
} else {
|
|
|
|
ret = B_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If this is an active spare within another pool, we
|
|
|
|
* treat it like an unused hot spare. This allows the
|
|
|
|
* user to create a pool with a hot spare that currently
|
|
|
|
* in use within another pool. Since we return B_TRUE,
|
|
|
|
* libdiskmgt will continue to prevent generic consumers
|
|
|
|
* from using the device.
|
|
|
|
*/
|
|
|
|
if (ret && nvlist_lookup_uint64(config,
|
|
|
|
ZPOOL_CONFIG_IS_SPARE, &isspare) == 0 && isspare)
|
|
|
|
stateval = POOL_STATE_SPARE;
|
|
|
|
|
|
|
|
if (zhp != NULL)
|
|
|
|
zpool_close(zhp);
|
|
|
|
} else {
|
|
|
|
stateval = POOL_STATE_POTENTIALLY_ACTIVE;
|
|
|
|
ret = B_TRUE;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case POOL_STATE_SPARE:
|
|
|
|
/*
|
|
|
|
* For a hot spare, it can be either definitively in use, or
|
|
|
|
* potentially active. To determine if it's in use, we iterate
|
|
|
|
* over all pools in the system and search for one with a spare
|
|
|
|
* with a matching guid.
|
|
|
|
*
|
|
|
|
* Due to the shared nature of spares, we don't actually report
|
|
|
|
* the potentially active case as in use. This means the user
|
|
|
|
* can freely create pools on the hot spares of exported pools,
|
|
|
|
* but to do otherwise makes the resulting code complicated, and
|
|
|
|
* we end up having to deal with this case anyway.
|
|
|
|
*/
|
|
|
|
cb.cb_zhp = NULL;
|
|
|
|
cb.cb_guid = vdev_guid;
|
|
|
|
cb.cb_type = ZPOOL_CONFIG_SPARES;
|
|
|
|
if (zpool_iter(hdl, find_aux, &cb) == 1) {
|
|
|
|
name = (char *)zpool_get_name(cb.cb_zhp);
|
|
|
|
ret = TRUE;
|
|
|
|
} else {
|
|
|
|
ret = FALSE;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case POOL_STATE_L2CACHE:
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Check if any pool is currently using this l2cache device.
|
|
|
|
*/
|
|
|
|
cb.cb_zhp = NULL;
|
|
|
|
cb.cb_guid = vdev_guid;
|
|
|
|
cb.cb_type = ZPOOL_CONFIG_L2CACHE;
|
|
|
|
if (zpool_iter(hdl, find_aux, &cb) == 1) {
|
|
|
|
name = (char *)zpool_get_name(cb.cb_zhp);
|
|
|
|
ret = TRUE;
|
|
|
|
} else {
|
|
|
|
ret = FALSE;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
ret = B_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if (ret) {
|
|
|
|
if ((*namestr = zfs_strdup(hdl, name)) == NULL) {
|
|
|
|
if (cb.cb_zhp)
|
|
|
|
zpool_close(cb.cb_zhp);
|
|
|
|
nvlist_free(config);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
*state = (pool_state_t)stateval;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (cb.cb_zhp)
|
|
|
|
zpool_close(cb.cb_zhp);
|
|
|
|
|
|
|
|
nvlist_free(config);
|
|
|
|
*inuse = ret;
|
|
|
|
return (0);
|
|
|
|
}
|