1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21078266a5SMarcel Telka 22fa9e4066Sahrens /* 23f9af39baSGeorge Wilson * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24b18d6b0eSMatthew Ahrens * Copyright (c) 2013 by Delphix. All rights reserved. 25bd0f7091SAndrew Stormont * Copyright 2015 RackTop Systems. 26*6401734dSWill Andrews * Copyright 2016 Nexenta Systems, Inc. 27fa9e4066Sahrens */ 28fa9e4066Sahrens 29fa9e4066Sahrens /* 30fa9e4066Sahrens * Pool import support functions. 31fa9e4066Sahrens * 32fa9e4066Sahrens * To import a pool, we rely on reading the configuration information from the 33fa9e4066Sahrens * ZFS label of each device. If we successfully read the label, then we 34fa9e4066Sahrens * organize the configuration information in the following hierarchy: 35fa9e4066Sahrens * 36fa9e4066Sahrens * pool guid -> toplevel vdev guid -> label txg 37fa9e4066Sahrens * 38fa9e4066Sahrens * Duplicate entries matching this same tuple will be discarded. Once we have 39fa9e4066Sahrens * examined every device, we pick the best label txg config for each toplevel 40fa9e4066Sahrens * vdev. We then arrange these toplevel vdevs into a complete pool config, and 41fa9e4066Sahrens * update any paths that have changed. Finally, we attempt to import the pool 42fa9e4066Sahrens * using our derived config, and record the results. 43fa9e4066Sahrens */ 44fa9e4066Sahrens 454f67d755SEric Taylor #include <ctype.h> 46fa9e4066Sahrens #include <devid.h> 47fa9e4066Sahrens #include <dirent.h> 48fa9e4066Sahrens #include <errno.h> 49fa9e4066Sahrens #include <libintl.h> 504f67d755SEric Taylor #include <stddef.h> 51fa9e4066Sahrens #include <stdlib.h> 52fa9e4066Sahrens #include <string.h> 53fa9e4066Sahrens #include <sys/stat.h> 54fa9e4066Sahrens #include <unistd.h> 55fa9e4066Sahrens #include <fcntl.h> 564f67d755SEric Taylor #include <sys/vtoc.h> 574f67d755SEric Taylor #include <sys/dktp/fdisk.h> 584f67d755SEric Taylor #include <sys/efi_partition.h> 594f67d755SEric Taylor #include <thread_pool.h> 60fa9e4066Sahrens 61fa9e4066Sahrens #include <sys/vdev_impl.h> 62fa9e4066Sahrens 63fa9e4066Sahrens #include "libzfs.h" 64fa9e4066Sahrens #include "libzfs_impl.h" 65fa9e4066Sahrens 66fa9e4066Sahrens /* 67fa9e4066Sahrens * Intermediate structures used to gather configuration information. 68fa9e4066Sahrens */ 69fa9e4066Sahrens typedef struct config_entry { 70fa9e4066Sahrens uint64_t ce_txg; 71fa9e4066Sahrens nvlist_t *ce_config; 72fa9e4066Sahrens struct config_entry *ce_next; 73fa9e4066Sahrens } config_entry_t; 74fa9e4066Sahrens 75fa9e4066Sahrens typedef struct vdev_entry { 76fa9e4066Sahrens uint64_t ve_guid; 77fa9e4066Sahrens config_entry_t *ve_configs; 78fa9e4066Sahrens struct vdev_entry *ve_next; 79fa9e4066Sahrens } vdev_entry_t; 80fa9e4066Sahrens 81fa9e4066Sahrens typedef struct pool_entry { 82fa9e4066Sahrens uint64_t pe_guid; 83fa9e4066Sahrens vdev_entry_t *pe_vdevs; 84fa9e4066Sahrens struct pool_entry *pe_next; 85fa9e4066Sahrens } pool_entry_t; 86fa9e4066Sahrens 87fa9e4066Sahrens typedef struct name_entry { 8899653d4eSeschrock char *ne_name; 89fa9e4066Sahrens uint64_t ne_guid; 90fa9e4066Sahrens struct name_entry *ne_next; 91fa9e4066Sahrens } name_entry_t; 92fa9e4066Sahrens 93fa9e4066Sahrens typedef struct pool_list { 94fa9e4066Sahrens pool_entry_t *pools; 95fa9e4066Sahrens name_entry_t *names; 96fa9e4066Sahrens } pool_list_t; 97fa9e4066Sahrens 98fa9e4066Sahrens static char * 99fa9e4066Sahrens get_devid(const char *path) 100fa9e4066Sahrens { 101fa9e4066Sahrens int fd; 102fa9e4066Sahrens ddi_devid_t devid; 103fa9e4066Sahrens char *minor, *ret; 104fa9e4066Sahrens 105fa9e4066Sahrens if ((fd = open(path, O_RDONLY)) < 0) 106fa9e4066Sahrens return (NULL); 107fa9e4066Sahrens 108fa9e4066Sahrens minor = NULL; 109fa9e4066Sahrens ret = NULL; 110fa9e4066Sahrens if (devid_get(fd, &devid) == 0) { 111fa9e4066Sahrens if (devid_get_minor_name(fd, &minor) == 0) 112fa9e4066Sahrens ret = devid_str_encode(devid, minor); 113fa9e4066Sahrens if (minor != NULL) 114fa9e4066Sahrens devid_str_free(minor); 115fa9e4066Sahrens devid_free(devid); 116fa9e4066Sahrens } 117c67d9675Seschrock (void) close(fd); 118fa9e4066Sahrens 119fa9e4066Sahrens return (ret); 120fa9e4066Sahrens } 121fa9e4066Sahrens 122fa9e4066Sahrens 123fa9e4066Sahrens /* 124fa9e4066Sahrens * Go through and fix up any path and/or devid information for the given vdev 125fa9e4066Sahrens * configuration. 126fa9e4066Sahrens */ 12799653d4eSeschrock static int 128fa9e4066Sahrens fix_paths(nvlist_t *nv, name_entry_t *names) 129fa9e4066Sahrens { 130fa9e4066Sahrens nvlist_t **child; 131fa9e4066Sahrens uint_t c, children; 132fa9e4066Sahrens uint64_t guid; 133c67d9675Seschrock name_entry_t *ne, *best; 134c67d9675Seschrock char *path, *devid; 135c67d9675Seschrock int matched; 136fa9e4066Sahrens 137fa9e4066Sahrens if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, 138fa9e4066Sahrens &child, &children) == 0) { 139fa9e4066Sahrens for (c = 0; c < children; c++) 14099653d4eSeschrock if (fix_paths(child[c], names) != 0) 14199653d4eSeschrock return (-1); 14299653d4eSeschrock return (0); 143fa9e4066Sahrens } 144fa9e4066Sahrens 145fa9e4066Sahrens /* 146fa9e4066Sahrens * This is a leaf (file or disk) vdev. In either case, go through 147fa9e4066Sahrens * the name list and see if we find a matching guid. If so, replace 148fa9e4066Sahrens * the path and see if we can calculate a new devid. 149c67d9675Seschrock * 150c67d9675Seschrock * There may be multiple names associated with a particular guid, in 151c67d9675Seschrock * which case we have overlapping slices or multiple paths to the same 152c67d9675Seschrock * disk. If this is the case, then we want to pick the path that is 153c67d9675Seschrock * the most similar to the original, where "most similar" is the number 154c67d9675Seschrock * of matching characters starting from the end of the path. This will 155c67d9675Seschrock * preserve slice numbers even if the disks have been reorganized, and 156c67d9675Seschrock * will also catch preferred disk names if multiple paths exist. 157fa9e4066Sahrens */ 158fa9e4066Sahrens verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0); 159c67d9675Seschrock if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) != 0) 160c67d9675Seschrock path = NULL; 161c67d9675Seschrock 162c67d9675Seschrock matched = 0; 163c67d9675Seschrock best = NULL; 164c67d9675Seschrock for (ne = names; ne != NULL; ne = ne->ne_next) { 165c67d9675Seschrock if (ne->ne_guid == guid) { 166c67d9675Seschrock const char *src, *dst; 167c67d9675Seschrock int count; 168c67d9675Seschrock 169c67d9675Seschrock if (path == NULL) { 170c67d9675Seschrock best = ne; 171c67d9675Seschrock break; 172c67d9675Seschrock } 173c67d9675Seschrock 174c67d9675Seschrock src = ne->ne_name + strlen(ne->ne_name) - 1; 175c67d9675Seschrock dst = path + strlen(path) - 1; 176c67d9675Seschrock for (count = 0; src >= ne->ne_name && dst >= path; 177c67d9675Seschrock src--, dst--, count++) 178c67d9675Seschrock if (*src != *dst) 179c67d9675Seschrock break; 180c67d9675Seschrock 181c67d9675Seschrock /* 182c67d9675Seschrock * At this point, 'count' is the number of characters 183c67d9675Seschrock * matched from the end. 184c67d9675Seschrock */ 185c67d9675Seschrock if (count > matched || best == NULL) { 186c67d9675Seschrock best = ne; 187c67d9675Seschrock matched = count; 188c67d9675Seschrock } 189c67d9675Seschrock } 190c67d9675Seschrock } 191fa9e4066Sahrens 192c67d9675Seschrock if (best == NULL) 19399653d4eSeschrock return (0); 194fa9e4066Sahrens 19599653d4eSeschrock if (nvlist_add_string(nv, ZPOOL_CONFIG_PATH, best->ne_name) != 0) 19699653d4eSeschrock return (-1); 197fa9e4066Sahrens 198c67d9675Seschrock if ((devid = get_devid(best->ne_name)) == NULL) { 199fa9e4066Sahrens (void) nvlist_remove_all(nv, ZPOOL_CONFIG_DEVID); 200fa9e4066Sahrens } else { 201078266a5SMarcel Telka if (nvlist_add_string(nv, ZPOOL_CONFIG_DEVID, devid) != 0) { 202078266a5SMarcel Telka devid_str_free(devid); 20399653d4eSeschrock return (-1); 204078266a5SMarcel Telka } 205fa9e4066Sahrens devid_str_free(devid); 206fa9e4066Sahrens } 20799653d4eSeschrock 20899653d4eSeschrock return (0); 209fa9e4066Sahrens } 210fa9e4066Sahrens 211fa9e4066Sahrens /* 212fa9e4066Sahrens * Add the given configuration to the list of known devices. 213fa9e4066Sahrens */ 21499653d4eSeschrock static int 21599653d4eSeschrock add_config(libzfs_handle_t *hdl, pool_list_t *pl, const char *path, 21699653d4eSeschrock nvlist_t *config) 217fa9e4066Sahrens { 21899653d4eSeschrock uint64_t pool_guid, vdev_guid, top_guid, txg, state; 219fa9e4066Sahrens pool_entry_t *pe; 220fa9e4066Sahrens vdev_entry_t *ve; 221fa9e4066Sahrens config_entry_t *ce; 222fa9e4066Sahrens name_entry_t *ne; 223fa9e4066Sahrens 22499653d4eSeschrock /* 225fa94a07fSbrendan * If this is a hot spare not currently in use or level 2 cache 226fa94a07fSbrendan * device, add it to the list of names to translate, but don't do 227fa94a07fSbrendan * anything else. 22899653d4eSeschrock */ 22999653d4eSeschrock if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, 230fa94a07fSbrendan &state) == 0 && 231fa94a07fSbrendan (state == POOL_STATE_SPARE || state == POOL_STATE_L2CACHE) && 23299653d4eSeschrock nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID, &vdev_guid) == 0) { 23399653d4eSeschrock if ((ne = zfs_alloc(hdl, sizeof (name_entry_t))) == NULL) 234ccae0b50Seschrock return (-1); 23599653d4eSeschrock 23699653d4eSeschrock if ((ne->ne_name = zfs_strdup(hdl, path)) == NULL) { 23799653d4eSeschrock free(ne); 23899653d4eSeschrock return (-1); 23999653d4eSeschrock } 24099653d4eSeschrock ne->ne_guid = vdev_guid; 24199653d4eSeschrock ne->ne_next = pl->names; 24299653d4eSeschrock pl->names = ne; 24399653d4eSeschrock return (0); 24499653d4eSeschrock } 24599653d4eSeschrock 246fa9e4066Sahrens /* 247fa9e4066Sahrens * If we have a valid config but cannot read any of these fields, then 248fa9e4066Sahrens * it means we have a half-initialized label. In vdev_label_init() 249fa9e4066Sahrens * we write a label with txg == 0 so that we can identify the device 250fa9e4066Sahrens * in case the user refers to the same disk later on. If we fail to 251fa9e4066Sahrens * create the pool, we'll be left with a label in this state 252fa9e4066Sahrens * which should not be considered part of a valid pool. 253fa9e4066Sahrens */ 254fa9e4066Sahrens if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, 255fa9e4066Sahrens &pool_guid) != 0 || 256fa9e4066Sahrens nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID, 257fa9e4066Sahrens &vdev_guid) != 0 || 258fa9e4066Sahrens nvlist_lookup_uint64(config, ZPOOL_CONFIG_TOP_GUID, 259fa9e4066Sahrens &top_guid) != 0 || 260fa9e4066Sahrens nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, 261fa9e4066Sahrens &txg) != 0 || txg == 0) { 262fa9e4066Sahrens nvlist_free(config); 26399653d4eSeschrock return (0); 264fa9e4066Sahrens } 265fa9e4066Sahrens 266fa9e4066Sahrens /* 267fa9e4066Sahrens * First, see if we know about this pool. If not, then add it to the 268fa9e4066Sahrens * list of known pools. 269fa9e4066Sahrens */ 270fa9e4066Sahrens for (pe = pl->pools; pe != NULL; pe = pe->pe_next) { 271fa9e4066Sahrens if (pe->pe_guid == pool_guid) 272fa9e4066Sahrens break; 273fa9e4066Sahrens } 274fa9e4066Sahrens 275fa9e4066Sahrens if (pe == NULL) { 27699653d4eSeschrock if ((pe = zfs_alloc(hdl, sizeof (pool_entry_t))) == NULL) { 27799653d4eSeschrock nvlist_free(config); 27899653d4eSeschrock return (-1); 27999653d4eSeschrock } 280fa9e4066Sahrens pe->pe_guid = pool_guid; 281fa9e4066Sahrens pe->pe_next = pl->pools; 282fa9e4066Sahrens pl->pools = pe; 283fa9e4066Sahrens } 284fa9e4066Sahrens 285fa9e4066Sahrens /* 286fa9e4066Sahrens * Second, see if we know about this toplevel vdev. Add it if its 287fa9e4066Sahrens * missing. 288fa9e4066Sahrens */ 289fa9e4066Sahrens for (ve = pe->pe_vdevs; ve != NULL; ve = ve->ve_next) { 290fa9e4066Sahrens if (ve->ve_guid == top_guid) 291fa9e4066Sahrens break; 292fa9e4066Sahrens } 293fa9e4066Sahrens 294fa9e4066Sahrens if (ve == NULL) { 29599653d4eSeschrock if ((ve = zfs_alloc(hdl, sizeof (vdev_entry_t))) == NULL) { 29699653d4eSeschrock nvlist_free(config); 29799653d4eSeschrock return (-1); 29899653d4eSeschrock } 299fa9e4066Sahrens ve->ve_guid = top_guid; 300fa9e4066Sahrens ve->ve_next = pe->pe_vdevs; 301fa9e4066Sahrens pe->pe_vdevs = ve; 302fa9e4066Sahrens } 303fa9e4066Sahrens 304fa9e4066Sahrens /* 305fa9e4066Sahrens * Third, see if we have a config with a matching transaction group. If 306fa9e4066Sahrens * so, then we do nothing. Otherwise, add it to the list of known 307fa9e4066Sahrens * configs. 308fa9e4066Sahrens */ 309fa9e4066Sahrens for (ce = ve->ve_configs; ce != NULL; ce = ce->ce_next) { 310fa9e4066Sahrens if (ce->ce_txg == txg) 311fa9e4066Sahrens break; 312fa9e4066Sahrens } 313fa9e4066Sahrens 314fa9e4066Sahrens if (ce == NULL) { 31599653d4eSeschrock if ((ce = zfs_alloc(hdl, sizeof (config_entry_t))) == NULL) { 31699653d4eSeschrock nvlist_free(config); 31799653d4eSeschrock return (-1); 31899653d4eSeschrock } 319fa9e4066Sahrens ce->ce_txg = txg; 320fa9e4066Sahrens ce->ce_config = config; 321fa9e4066Sahrens ce->ce_next = ve->ve_configs; 322fa9e4066Sahrens ve->ve_configs = ce; 323fa9e4066Sahrens } else { 324fa9e4066Sahrens nvlist_free(config); 325fa9e4066Sahrens } 326fa9e4066Sahrens 327fa9e4066Sahrens /* 328fa9e4066Sahrens * At this point we've successfully added our config to the list of 329fa9e4066Sahrens * known configs. The last thing to do is add the vdev guid -> path 330fa9e4066Sahrens * mappings so that we can fix up the configuration as necessary before 331fa9e4066Sahrens * doing the import. 332fa9e4066Sahrens */ 33399653d4eSeschrock if ((ne = zfs_alloc(hdl, sizeof (name_entry_t))) == NULL) 33499653d4eSeschrock return (-1); 33599653d4eSeschrock 33699653d4eSeschrock if ((ne->ne_name = zfs_strdup(hdl, path)) == NULL) { 33799653d4eSeschrock free(ne); 33899653d4eSeschrock return (-1); 33999653d4eSeschrock } 340fa9e4066Sahrens 341fa9e4066Sahrens ne->ne_guid = vdev_guid; 342fa9e4066Sahrens ne->ne_next = pl->names; 343fa9e4066Sahrens pl->names = ne; 34499653d4eSeschrock 34599653d4eSeschrock return (0); 346fa9e4066Sahrens } 347fa9e4066Sahrens 348eaca9bbdSeschrock /* 349eaca9bbdSeschrock * Returns true if the named pool matches the given GUID. 350eaca9bbdSeschrock */ 35194de1d4cSeschrock static int 35294de1d4cSeschrock pool_active(libzfs_handle_t *hdl, const char *name, uint64_t guid, 35394de1d4cSeschrock boolean_t *isactive) 354eaca9bbdSeschrock { 355eaca9bbdSeschrock zpool_handle_t *zhp; 356eaca9bbdSeschrock uint64_t theguid; 357eaca9bbdSeschrock 35894de1d4cSeschrock if (zpool_open_silent(hdl, name, &zhp) != 0) 35994de1d4cSeschrock return (-1); 36094de1d4cSeschrock 36194de1d4cSeschrock if (zhp == NULL) { 36294de1d4cSeschrock *isactive = B_FALSE; 36394de1d4cSeschrock return (0); 36494de1d4cSeschrock } 365eaca9bbdSeschrock 366eaca9bbdSeschrock verify(nvlist_lookup_uint64(zhp->zpool_config, ZPOOL_CONFIG_POOL_GUID, 367eaca9bbdSeschrock &theguid) == 0); 368eaca9bbdSeschrock 369eaca9bbdSeschrock zpool_close(zhp); 370eaca9bbdSeschrock 37194de1d4cSeschrock *isactive = (theguid == guid); 37294de1d4cSeschrock return (0); 373eaca9bbdSeschrock } 374eaca9bbdSeschrock 3752f8aaab3Seschrock static nvlist_t * 3762f8aaab3Seschrock refresh_config(libzfs_handle_t *hdl, nvlist_t *config) 3772f8aaab3Seschrock { 3782f8aaab3Seschrock nvlist_t *nvl; 3792f8aaab3Seschrock zfs_cmd_t zc = { 0 }; 3802f8aaab3Seschrock int err; 3812f8aaab3Seschrock 3822f8aaab3Seschrock if (zcmd_write_conf_nvlist(hdl, &zc, config) != 0) 3832f8aaab3Seschrock return (NULL); 3842f8aaab3Seschrock 3852f8aaab3Seschrock if (zcmd_alloc_dst_nvlist(hdl, &zc, 3862f8aaab3Seschrock zc.zc_nvlist_conf_size * 2) != 0) { 3872f8aaab3Seschrock zcmd_free_nvlists(&zc); 3882f8aaab3Seschrock return (NULL); 3892f8aaab3Seschrock } 3902f8aaab3Seschrock 3912f8aaab3Seschrock while ((err = ioctl(hdl->libzfs_fd, ZFS_IOC_POOL_TRYIMPORT, 3922f8aaab3Seschrock &zc)) != 0 && errno == ENOMEM) { 3932f8aaab3Seschrock if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 3942f8aaab3Seschrock zcmd_free_nvlists(&zc); 3952f8aaab3Seschrock return (NULL); 3962f8aaab3Seschrock } 3972f8aaab3Seschrock } 3982f8aaab3Seschrock 3992f8aaab3Seschrock if (err) { 4002f8aaab3Seschrock zcmd_free_nvlists(&zc); 4012f8aaab3Seschrock return (NULL); 4022f8aaab3Seschrock } 4032f8aaab3Seschrock 4042f8aaab3Seschrock if (zcmd_read_dst_nvlist(hdl, &zc, &nvl) != 0) { 4052f8aaab3Seschrock zcmd_free_nvlists(&zc); 4062f8aaab3Seschrock return (NULL); 4072f8aaab3Seschrock } 4082f8aaab3Seschrock 4092f8aaab3Seschrock zcmd_free_nvlists(&zc); 4102f8aaab3Seschrock return (nvl); 4112f8aaab3Seschrock } 4122f8aaab3Seschrock 41388ecc943SGeorge Wilson /* 41488ecc943SGeorge Wilson * Determine if the vdev id is a hole in the namespace. 41588ecc943SGeorge Wilson */ 41688ecc943SGeorge Wilson boolean_t 41788ecc943SGeorge Wilson vdev_is_hole(uint64_t *hole_array, uint_t holes, uint_t id) 41888ecc943SGeorge Wilson { 41988ecc943SGeorge Wilson for (int c = 0; c < holes; c++) { 42088ecc943SGeorge Wilson 42188ecc943SGeorge Wilson /* Top-level is a hole */ 42288ecc943SGeorge Wilson if (hole_array[c] == id) 42388ecc943SGeorge Wilson return (B_TRUE); 42488ecc943SGeorge Wilson } 42588ecc943SGeorge Wilson return (B_FALSE); 42688ecc943SGeorge Wilson } 42788ecc943SGeorge Wilson 428fa9e4066Sahrens /* 429fa9e4066Sahrens * Convert our list of pools into the definitive set of configurations. We 430fa9e4066Sahrens * start by picking the best config for each toplevel vdev. Once that's done, 431fa9e4066Sahrens * we assemble the toplevel vdevs into a full config for the pool. We make a 432fa9e4066Sahrens * pass to fix up any incorrect paths, and then add it to the main list to 433fa9e4066Sahrens * return to the user. 434fa9e4066Sahrens */ 435fa9e4066Sahrens static nvlist_t * 4363a57275aSck get_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok) 437fa9e4066Sahrens { 43899653d4eSeschrock pool_entry_t *pe; 43999653d4eSeschrock vdev_entry_t *ve; 44099653d4eSeschrock config_entry_t *ce; 44199653d4eSeschrock nvlist_t *ret = NULL, *config = NULL, *tmp, *nvtop, *nvroot; 442fa94a07fSbrendan nvlist_t **spares, **l2cache; 443fa94a07fSbrendan uint_t i, nspares, nl2cache; 44499653d4eSeschrock boolean_t config_seen; 445fa9e4066Sahrens uint64_t best_txg; 446dfbb9432SGeorge Wilson char *name, *hostname; 447dfbb9432SGeorge Wilson uint64_t guid; 44899653d4eSeschrock uint_t children = 0; 44999653d4eSeschrock nvlist_t **child = NULL; 45088ecc943SGeorge Wilson uint_t holes; 45188ecc943SGeorge Wilson uint64_t *hole_array, max_id; 45299653d4eSeschrock uint_t c; 45394de1d4cSeschrock boolean_t isactive; 45495173954Sek uint64_t hostid; 4552f8aaab3Seschrock nvlist_t *nvl; 45624e697d4Sck boolean_t found_one = B_FALSE; 45788ecc943SGeorge Wilson boolean_t valid_top_config = B_FALSE; 458fa9e4066Sahrens 45999653d4eSeschrock if (nvlist_alloc(&ret, 0, 0) != 0) 46099653d4eSeschrock goto nomem; 461fa9e4066Sahrens 46299653d4eSeschrock for (pe = pl->pools; pe != NULL; pe = pe->pe_next) { 46388ecc943SGeorge Wilson uint64_t id, max_txg = 0; 464fa9e4066Sahrens 46599653d4eSeschrock if (nvlist_alloc(&config, NV_UNIQUE_NAME, 0) != 0) 46699653d4eSeschrock goto nomem; 46799653d4eSeschrock config_seen = B_FALSE; 468fa9e4066Sahrens 469fa9e4066Sahrens /* 470fa9e4066Sahrens * Iterate over all toplevel vdevs. Grab the pool configuration 471fa9e4066Sahrens * from the first one we find, and then go through the rest and 472fa9e4066Sahrens * add them as necessary to the 'vdevs' member of the config. 473fa9e4066Sahrens */ 47499653d4eSeschrock for (ve = pe->pe_vdevs; ve != NULL; ve = ve->ve_next) { 475fa9e4066Sahrens 476fa9e4066Sahrens /* 477fa9e4066Sahrens * Determine the best configuration for this vdev by 478fa9e4066Sahrens * selecting the config with the latest transaction 479fa9e4066Sahrens * group. 480fa9e4066Sahrens */ 481fa9e4066Sahrens best_txg = 0; 482fa9e4066Sahrens for (ce = ve->ve_configs; ce != NULL; 483fa9e4066Sahrens ce = ce->ce_next) { 484fa9e4066Sahrens 48599653d4eSeschrock if (ce->ce_txg > best_txg) { 486fa9e4066Sahrens tmp = ce->ce_config; 48799653d4eSeschrock best_txg = ce->ce_txg; 48899653d4eSeschrock } 489fa9e4066Sahrens } 490fa9e4066Sahrens 49188ecc943SGeorge Wilson /* 49288ecc943SGeorge Wilson * We rely on the fact that the max txg for the 49388ecc943SGeorge Wilson * pool will contain the most up-to-date information 49488ecc943SGeorge Wilson * about the valid top-levels in the vdev namespace. 49588ecc943SGeorge Wilson */ 49688ecc943SGeorge Wilson if (best_txg > max_txg) { 49788ecc943SGeorge Wilson (void) nvlist_remove(config, 49888ecc943SGeorge Wilson ZPOOL_CONFIG_VDEV_CHILDREN, 49988ecc943SGeorge Wilson DATA_TYPE_UINT64); 50088ecc943SGeorge Wilson (void) nvlist_remove(config, 50188ecc943SGeorge Wilson ZPOOL_CONFIG_HOLE_ARRAY, 50288ecc943SGeorge Wilson DATA_TYPE_UINT64_ARRAY); 50388ecc943SGeorge Wilson 50488ecc943SGeorge Wilson max_txg = best_txg; 50588ecc943SGeorge Wilson hole_array = NULL; 50688ecc943SGeorge Wilson holes = 0; 50788ecc943SGeorge Wilson max_id = 0; 50888ecc943SGeorge Wilson valid_top_config = B_FALSE; 50988ecc943SGeorge Wilson 51088ecc943SGeorge Wilson if (nvlist_lookup_uint64(tmp, 51188ecc943SGeorge Wilson ZPOOL_CONFIG_VDEV_CHILDREN, &max_id) == 0) { 51288ecc943SGeorge Wilson verify(nvlist_add_uint64(config, 51388ecc943SGeorge Wilson ZPOOL_CONFIG_VDEV_CHILDREN, 51488ecc943SGeorge Wilson max_id) == 0); 51588ecc943SGeorge Wilson valid_top_config = B_TRUE; 51688ecc943SGeorge Wilson } 51788ecc943SGeorge Wilson 51888ecc943SGeorge Wilson if (nvlist_lookup_uint64_array(tmp, 51988ecc943SGeorge Wilson ZPOOL_CONFIG_HOLE_ARRAY, &hole_array, 52088ecc943SGeorge Wilson &holes) == 0) { 52188ecc943SGeorge Wilson verify(nvlist_add_uint64_array(config, 52288ecc943SGeorge Wilson ZPOOL_CONFIG_HOLE_ARRAY, 52388ecc943SGeorge Wilson hole_array, holes) == 0); 52488ecc943SGeorge Wilson } 52588ecc943SGeorge Wilson } 52688ecc943SGeorge Wilson 527fa9e4066Sahrens if (!config_seen) { 528fa9e4066Sahrens /* 529fa9e4066Sahrens * Copy the relevant pieces of data to the pool 530fa9e4066Sahrens * configuration: 531fa9e4066Sahrens * 53299653d4eSeschrock * version 533dfbb9432SGeorge Wilson * pool guid 534dfbb9432SGeorge Wilson * name 5358704186eSDan McDonald * comment (if available) 536dfbb9432SGeorge Wilson * pool state 53795173954Sek * hostid (if available) 53895173954Sek * hostname (if available) 539fa9e4066Sahrens */ 540bda88194SGeorge Wilson uint64_t state, version; 541dfbb9432SGeorge Wilson char *comment = NULL; 542dfbb9432SGeorge Wilson 543dfbb9432SGeorge Wilson version = fnvlist_lookup_uint64(tmp, 544dfbb9432SGeorge Wilson ZPOOL_CONFIG_VERSION); 545dfbb9432SGeorge Wilson fnvlist_add_uint64(config, 546dfbb9432SGeorge Wilson ZPOOL_CONFIG_VERSION, version); 547dfbb9432SGeorge Wilson guid = fnvlist_lookup_uint64(tmp, 548dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_GUID); 549dfbb9432SGeorge Wilson fnvlist_add_uint64(config, 550dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_GUID, guid); 551dfbb9432SGeorge Wilson name = fnvlist_lookup_string(tmp, 552dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_NAME); 553dfbb9432SGeorge Wilson fnvlist_add_string(config, 554dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_NAME, name); 555dfbb9432SGeorge Wilson 5568704186eSDan McDonald if (nvlist_lookup_string(tmp, 557dfbb9432SGeorge Wilson ZPOOL_CONFIG_COMMENT, &comment) == 0) 558dfbb9432SGeorge Wilson fnvlist_add_string(config, 559dfbb9432SGeorge Wilson ZPOOL_CONFIG_COMMENT, comment); 560dfbb9432SGeorge Wilson 561dfbb9432SGeorge Wilson state = fnvlist_lookup_uint64(tmp, 562dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_STATE); 563dfbb9432SGeorge Wilson fnvlist_add_uint64(config, 564dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_STATE, state); 5658704186eSDan McDonald 56695173954Sek hostid = 0; 56795173954Sek if (nvlist_lookup_uint64(tmp, 56895173954Sek ZPOOL_CONFIG_HOSTID, &hostid) == 0) { 569dfbb9432SGeorge Wilson fnvlist_add_uint64(config, 570dfbb9432SGeorge Wilson ZPOOL_CONFIG_HOSTID, hostid); 571dfbb9432SGeorge Wilson hostname = fnvlist_lookup_string(tmp, 572dfbb9432SGeorge Wilson ZPOOL_CONFIG_HOSTNAME); 573dfbb9432SGeorge Wilson fnvlist_add_string(config, 574dfbb9432SGeorge Wilson ZPOOL_CONFIG_HOSTNAME, hostname); 57595173954Sek } 576fa9e4066Sahrens 57799653d4eSeschrock config_seen = B_TRUE; 578fa9e4066Sahrens } 579fa9e4066Sahrens 580fa9e4066Sahrens /* 581fa9e4066Sahrens * Add this top-level vdev to the child array. 582fa9e4066Sahrens */ 583fa9e4066Sahrens verify(nvlist_lookup_nvlist(tmp, 584fa9e4066Sahrens ZPOOL_CONFIG_VDEV_TREE, &nvtop) == 0); 585fa9e4066Sahrens verify(nvlist_lookup_uint64(nvtop, ZPOOL_CONFIG_ID, 586fa9e4066Sahrens &id) == 0); 58788ecc943SGeorge Wilson 588fa9e4066Sahrens if (id >= children) { 589fa9e4066Sahrens nvlist_t **newchild; 590fa9e4066Sahrens 59199653d4eSeschrock newchild = zfs_alloc(hdl, (id + 1) * 592fa9e4066Sahrens sizeof (nvlist_t *)); 59399653d4eSeschrock if (newchild == NULL) 59499653d4eSeschrock goto nomem; 595fa9e4066Sahrens 596fa9e4066Sahrens for (c = 0; c < children; c++) 597fa9e4066Sahrens newchild[c] = child[c]; 598fa9e4066Sahrens 599fa9e4066Sahrens free(child); 600fa9e4066Sahrens child = newchild; 601fa9e4066Sahrens children = id + 1; 602fa9e4066Sahrens } 60399653d4eSeschrock if (nvlist_dup(nvtop, &child[id], 0) != 0) 60499653d4eSeschrock goto nomem; 605fa9e4066Sahrens 606fa9e4066Sahrens } 607fa9e4066Sahrens 60888ecc943SGeorge Wilson /* 60988ecc943SGeorge Wilson * If we have information about all the top-levels then 61088ecc943SGeorge Wilson * clean up the nvlist which we've constructed. This 61188ecc943SGeorge Wilson * means removing any extraneous devices that are 61288ecc943SGeorge Wilson * beyond the valid range or adding devices to the end 61388ecc943SGeorge Wilson * of our array which appear to be missing. 61488ecc943SGeorge Wilson */ 61588ecc943SGeorge Wilson if (valid_top_config) { 61688ecc943SGeorge Wilson if (max_id < children) { 61788ecc943SGeorge Wilson for (c = max_id; c < children; c++) 61888ecc943SGeorge Wilson nvlist_free(child[c]); 61988ecc943SGeorge Wilson children = max_id; 62088ecc943SGeorge Wilson } else if (max_id > children) { 62188ecc943SGeorge Wilson nvlist_t **newchild; 62288ecc943SGeorge Wilson 62388ecc943SGeorge Wilson newchild = zfs_alloc(hdl, (max_id) * 62488ecc943SGeorge Wilson sizeof (nvlist_t *)); 62588ecc943SGeorge Wilson if (newchild == NULL) 62688ecc943SGeorge Wilson goto nomem; 62788ecc943SGeorge Wilson 62888ecc943SGeorge Wilson for (c = 0; c < children; c++) 62988ecc943SGeorge Wilson newchild[c] = child[c]; 63088ecc943SGeorge Wilson 63188ecc943SGeorge Wilson free(child); 63288ecc943SGeorge Wilson child = newchild; 63388ecc943SGeorge Wilson children = max_id; 63488ecc943SGeorge Wilson } 63588ecc943SGeorge Wilson } 63688ecc943SGeorge Wilson 637fa9e4066Sahrens verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, 638fa9e4066Sahrens &guid) == 0); 639fa9e4066Sahrens 64088ecc943SGeorge Wilson /* 64188ecc943SGeorge Wilson * The vdev namespace may contain holes as a result of 64288ecc943SGeorge Wilson * device removal. We must add them back into the vdev 64388ecc943SGeorge Wilson * tree before we process any missing devices. 64488ecc943SGeorge Wilson */ 64588ecc943SGeorge Wilson if (holes > 0) { 64688ecc943SGeorge Wilson ASSERT(valid_top_config); 64788ecc943SGeorge Wilson 64888ecc943SGeorge Wilson for (c = 0; c < children; c++) { 64988ecc943SGeorge Wilson nvlist_t *holey; 65088ecc943SGeorge Wilson 65188ecc943SGeorge Wilson if (child[c] != NULL || 65288ecc943SGeorge Wilson !vdev_is_hole(hole_array, holes, c)) 65388ecc943SGeorge Wilson continue; 65488ecc943SGeorge Wilson 65588ecc943SGeorge Wilson if (nvlist_alloc(&holey, NV_UNIQUE_NAME, 65688ecc943SGeorge Wilson 0) != 0) 65788ecc943SGeorge Wilson goto nomem; 65888ecc943SGeorge Wilson 65988ecc943SGeorge Wilson /* 66088ecc943SGeorge Wilson * Holes in the namespace are treated as 66188ecc943SGeorge Wilson * "hole" top-level vdevs and have a 66288ecc943SGeorge Wilson * special flag set on them. 66388ecc943SGeorge Wilson */ 66488ecc943SGeorge Wilson if (nvlist_add_string(holey, 66588ecc943SGeorge Wilson ZPOOL_CONFIG_TYPE, 66688ecc943SGeorge Wilson VDEV_TYPE_HOLE) != 0 || 66788ecc943SGeorge Wilson nvlist_add_uint64(holey, 66888ecc943SGeorge Wilson ZPOOL_CONFIG_ID, c) != 0 || 66988ecc943SGeorge Wilson nvlist_add_uint64(holey, 670078266a5SMarcel Telka ZPOOL_CONFIG_GUID, 0ULL) != 0) { 671078266a5SMarcel Telka nvlist_free(holey); 67288ecc943SGeorge Wilson goto nomem; 673078266a5SMarcel Telka } 67488ecc943SGeorge Wilson child[c] = holey; 67588ecc943SGeorge Wilson } 67688ecc943SGeorge Wilson } 67788ecc943SGeorge Wilson 678fa9e4066Sahrens /* 679fa9e4066Sahrens * Look for any missing top-level vdevs. If this is the case, 680fa9e4066Sahrens * create a faked up 'missing' vdev as a placeholder. We cannot 681fa9e4066Sahrens * simply compress the child array, because the kernel performs 682fa9e4066Sahrens * certain checks to make sure the vdev IDs match their location 683fa9e4066Sahrens * in the configuration. 684fa9e4066Sahrens */ 68588ecc943SGeorge Wilson for (c = 0; c < children; c++) { 686fa9e4066Sahrens if (child[c] == NULL) { 687fa9e4066Sahrens nvlist_t *missing; 68899653d4eSeschrock if (nvlist_alloc(&missing, NV_UNIQUE_NAME, 68999653d4eSeschrock 0) != 0) 69099653d4eSeschrock goto nomem; 69199653d4eSeschrock if (nvlist_add_string(missing, 69299653d4eSeschrock ZPOOL_CONFIG_TYPE, 69399653d4eSeschrock VDEV_TYPE_MISSING) != 0 || 69499653d4eSeschrock nvlist_add_uint64(missing, 69599653d4eSeschrock ZPOOL_CONFIG_ID, c) != 0 || 69699653d4eSeschrock nvlist_add_uint64(missing, 69799653d4eSeschrock ZPOOL_CONFIG_GUID, 0ULL) != 0) { 69899653d4eSeschrock nvlist_free(missing); 69999653d4eSeschrock goto nomem; 70099653d4eSeschrock } 701fa9e4066Sahrens child[c] = missing; 702fa9e4066Sahrens } 70388ecc943SGeorge Wilson } 704fa9e4066Sahrens 705fa9e4066Sahrens /* 706fa9e4066Sahrens * Put all of this pool's top-level vdevs into a root vdev. 707fa9e4066Sahrens */ 70899653d4eSeschrock if (nvlist_alloc(&nvroot, NV_UNIQUE_NAME, 0) != 0) 70999653d4eSeschrock goto nomem; 71099653d4eSeschrock if (nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE, 71199653d4eSeschrock VDEV_TYPE_ROOT) != 0 || 71299653d4eSeschrock nvlist_add_uint64(nvroot, ZPOOL_CONFIG_ID, 0ULL) != 0 || 71399653d4eSeschrock nvlist_add_uint64(nvroot, ZPOOL_CONFIG_GUID, guid) != 0 || 71499653d4eSeschrock nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, 71599653d4eSeschrock child, children) != 0) { 71699653d4eSeschrock nvlist_free(nvroot); 71799653d4eSeschrock goto nomem; 71899653d4eSeschrock } 719fa9e4066Sahrens 720fa9e4066Sahrens for (c = 0; c < children; c++) 721fa9e4066Sahrens nvlist_free(child[c]); 722fa9e4066Sahrens free(child); 72399653d4eSeschrock children = 0; 72499653d4eSeschrock child = NULL; 725fa9e4066Sahrens 726fa9e4066Sahrens /* 727fa9e4066Sahrens * Go through and fix up any paths and/or devids based on our 728fa9e4066Sahrens * known list of vdev GUID -> path mappings. 729fa9e4066Sahrens */ 73099653d4eSeschrock if (fix_paths(nvroot, pl->names) != 0) { 73199653d4eSeschrock nvlist_free(nvroot); 73299653d4eSeschrock goto nomem; 73399653d4eSeschrock } 734fa9e4066Sahrens 735fa9e4066Sahrens /* 736fa9e4066Sahrens * Add the root vdev to this pool's configuration. 737fa9e4066Sahrens */ 73899653d4eSeschrock if (nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 73999653d4eSeschrock nvroot) != 0) { 74099653d4eSeschrock nvlist_free(nvroot); 74199653d4eSeschrock goto nomem; 74299653d4eSeschrock } 743fa9e4066Sahrens nvlist_free(nvroot); 744fa9e4066Sahrens 7453a57275aSck /* 7463a57275aSck * zdb uses this path to report on active pools that were 7473a57275aSck * imported or created using -R. 7483a57275aSck */ 7493a57275aSck if (active_ok) 7503a57275aSck goto add_pool; 7513a57275aSck 752fa9e4066Sahrens /* 753fa9e4066Sahrens * Determine if this pool is currently active, in which case we 754fa9e4066Sahrens * can't actually import it. 755fa9e4066Sahrens */ 756fa9e4066Sahrens verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 757fa9e4066Sahrens &name) == 0); 758fa9e4066Sahrens verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, 759fa9e4066Sahrens &guid) == 0); 760fa9e4066Sahrens 76194de1d4cSeschrock if (pool_active(hdl, name, guid, &isactive) != 0) 76294de1d4cSeschrock goto error; 76394de1d4cSeschrock 7640192a278Seschrock if (isactive) { 765fa9e4066Sahrens nvlist_free(config); 76699653d4eSeschrock config = NULL; 767fa9e4066Sahrens continue; 768fa9e4066Sahrens } 769fa9e4066Sahrens 77088ecc943SGeorge Wilson if ((nvl = refresh_config(hdl, config)) == NULL) { 77188ecc943SGeorge Wilson nvlist_free(config); 77288ecc943SGeorge Wilson config = NULL; 77388ecc943SGeorge Wilson continue; 77488ecc943SGeorge Wilson } 775fa9e4066Sahrens 776fa9e4066Sahrens nvlist_free(config); 7772f8aaab3Seschrock config = nvl; 778fa9e4066Sahrens 77999653d4eSeschrock /* 78099653d4eSeschrock * Go through and update the paths for spares, now that we have 78199653d4eSeschrock * them. 78299653d4eSeschrock */ 78399653d4eSeschrock verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 78499653d4eSeschrock &nvroot) == 0); 78599653d4eSeschrock if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, 78699653d4eSeschrock &spares, &nspares) == 0) { 78799653d4eSeschrock for (i = 0; i < nspares; i++) { 78899653d4eSeschrock if (fix_paths(spares[i], pl->names) != 0) 78999653d4eSeschrock goto nomem; 79099653d4eSeschrock } 79199653d4eSeschrock } 79299653d4eSeschrock 793fa94a07fSbrendan /* 794fa94a07fSbrendan * Update the paths for l2cache devices. 795fa94a07fSbrendan */ 796fa94a07fSbrendan if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, 797fa94a07fSbrendan &l2cache, &nl2cache) == 0) { 798fa94a07fSbrendan for (i = 0; i < nl2cache; i++) { 799fa94a07fSbrendan if (fix_paths(l2cache[i], pl->names) != 0) 800fa94a07fSbrendan goto nomem; 801fa94a07fSbrendan } 802fa94a07fSbrendan } 803fa94a07fSbrendan 80495173954Sek /* 80595173954Sek * Restore the original information read from the actual label. 80695173954Sek */ 80795173954Sek (void) nvlist_remove(config, ZPOOL_CONFIG_HOSTID, 80895173954Sek DATA_TYPE_UINT64); 80995173954Sek (void) nvlist_remove(config, ZPOOL_CONFIG_HOSTNAME, 81095173954Sek DATA_TYPE_STRING); 81195173954Sek if (hostid != 0) { 81295173954Sek verify(nvlist_add_uint64(config, ZPOOL_CONFIG_HOSTID, 81395173954Sek hostid) == 0); 81495173954Sek verify(nvlist_add_string(config, ZPOOL_CONFIG_HOSTNAME, 81595173954Sek hostname) == 0); 81695173954Sek } 81795173954Sek 8183a57275aSck add_pool: 819fa9e4066Sahrens /* 820fa9e4066Sahrens * Add this pool to the list of configs. 821fa9e4066Sahrens */ 822e9dbad6fSeschrock verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 823e9dbad6fSeschrock &name) == 0); 82499653d4eSeschrock if (nvlist_add_nvlist(ret, name, config) != 0) 82599653d4eSeschrock goto nomem; 826fa9e4066Sahrens 82724e697d4Sck found_one = B_TRUE; 828fa9e4066Sahrens nvlist_free(config); 82999653d4eSeschrock config = NULL; 830fa9e4066Sahrens } 831fa9e4066Sahrens 83224e697d4Sck if (!found_one) { 83324e697d4Sck nvlist_free(ret); 83424e697d4Sck ret = NULL; 83524e697d4Sck } 83624e697d4Sck 837fa9e4066Sahrens return (ret); 83899653d4eSeschrock 83999653d4eSeschrock nomem: 84099653d4eSeschrock (void) no_memory(hdl); 84199653d4eSeschrock error: 84294de1d4cSeschrock nvlist_free(config); 84394de1d4cSeschrock nvlist_free(ret); 84499653d4eSeschrock for (c = 0; c < children; c++) 84599653d4eSeschrock nvlist_free(child[c]); 84694de1d4cSeschrock free(child); 84799653d4eSeschrock 84899653d4eSeschrock return (NULL); 849fa9e4066Sahrens } 850fa9e4066Sahrens 851fa9e4066Sahrens /* 852fa9e4066Sahrens * Return the offset of the given label. 853fa9e4066Sahrens */ 854fa9e4066Sahrens static uint64_t 855e7437265Sahrens label_offset(uint64_t size, int l) 856fa9e4066Sahrens { 857e7437265Sahrens ASSERT(P2PHASE_TYPED(size, sizeof (vdev_label_t), uint64_t) == 0); 858fa9e4066Sahrens return (l * sizeof (vdev_label_t) + (l < VDEV_LABELS / 2 ? 859fa9e4066Sahrens 0 : size - VDEV_LABELS * sizeof (vdev_label_t))); 860fa9e4066Sahrens } 861fa9e4066Sahrens 862fa9e4066Sahrens /* 863fa9e4066Sahrens * Given a file descriptor, read the label information and return an nvlist 864fa9e4066Sahrens * describing the configuration, if there is one. 865fa9e4066Sahrens */ 86699653d4eSeschrock int 86799653d4eSeschrock zpool_read_label(int fd, nvlist_t **config) 868fa9e4066Sahrens { 869fa9e4066Sahrens struct stat64 statbuf; 870fa9e4066Sahrens int l; 871fa9e4066Sahrens vdev_label_t *label; 872e7437265Sahrens uint64_t state, txg, size; 873fa9e4066Sahrens 87499653d4eSeschrock *config = NULL; 87599653d4eSeschrock 876fa9e4066Sahrens if (fstat64(fd, &statbuf) == -1) 87799653d4eSeschrock return (0); 878e7437265Sahrens size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t); 879fa9e4066Sahrens 88099653d4eSeschrock if ((label = malloc(sizeof (vdev_label_t))) == NULL) 88199653d4eSeschrock return (-1); 882fa9e4066Sahrens 883fa9e4066Sahrens for (l = 0; l < VDEV_LABELS; l++) { 884c5904d13Seschrock if (pread64(fd, label, sizeof (vdev_label_t), 885e7437265Sahrens label_offset(size, l)) != sizeof (vdev_label_t)) 886fa9e4066Sahrens continue; 887fa9e4066Sahrens 888fa9e4066Sahrens if (nvlist_unpack(label->vl_vdev_phys.vp_nvlist, 88999653d4eSeschrock sizeof (label->vl_vdev_phys.vp_nvlist), config, 0) != 0) 890fa9e4066Sahrens continue; 891fa9e4066Sahrens 89299653d4eSeschrock if (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_STATE, 893fa94a07fSbrendan &state) != 0 || state > POOL_STATE_L2CACHE) { 89499653d4eSeschrock nvlist_free(*config); 895fa9e4066Sahrens continue; 896fa9e4066Sahrens } 897fa9e4066Sahrens 898fa94a07fSbrendan if (state != POOL_STATE_SPARE && state != POOL_STATE_L2CACHE && 89999653d4eSeschrock (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_TXG, 90099653d4eSeschrock &txg) != 0 || txg == 0)) { 90199653d4eSeschrock nvlist_free(*config); 902fa9e4066Sahrens continue; 903fa9e4066Sahrens } 904fa9e4066Sahrens 905fa9e4066Sahrens free(label); 90699653d4eSeschrock return (0); 907fa9e4066Sahrens } 908fa9e4066Sahrens 909fa9e4066Sahrens free(label); 91099653d4eSeschrock *config = NULL; 91199653d4eSeschrock return (0); 912fa9e4066Sahrens } 913fa9e4066Sahrens 9144f67d755SEric Taylor typedef struct rdsk_node { 9154f67d755SEric Taylor char *rn_name; 9164f67d755SEric Taylor int rn_dfd; 9174f67d755SEric Taylor libzfs_handle_t *rn_hdl; 9184f67d755SEric Taylor nvlist_t *rn_config; 9194f67d755SEric Taylor avl_tree_t *rn_avl; 9204f67d755SEric Taylor avl_node_t rn_node; 9214f67d755SEric Taylor boolean_t rn_nozpool; 9224f67d755SEric Taylor } rdsk_node_t; 9234f67d755SEric Taylor 9244f67d755SEric Taylor static int 9254f67d755SEric Taylor slice_cache_compare(const void *arg1, const void *arg2) 9264f67d755SEric Taylor { 9274f67d755SEric Taylor const char *nm1 = ((rdsk_node_t *)arg1)->rn_name; 9284f67d755SEric Taylor const char *nm2 = ((rdsk_node_t *)arg2)->rn_name; 9294f67d755SEric Taylor char *nm1slice, *nm2slice; 9304f67d755SEric Taylor int rv; 9314f67d755SEric Taylor 9324f67d755SEric Taylor /* 9334f67d755SEric Taylor * slices zero and two are the most likely to provide results, 9344f67d755SEric Taylor * so put those first 9354f67d755SEric Taylor */ 9364f67d755SEric Taylor nm1slice = strstr(nm1, "s0"); 9374f67d755SEric Taylor nm2slice = strstr(nm2, "s0"); 9384f67d755SEric Taylor if (nm1slice && !nm2slice) { 9394f67d755SEric Taylor return (-1); 9404f67d755SEric Taylor } 9414f67d755SEric Taylor if (!nm1slice && nm2slice) { 9424f67d755SEric Taylor return (1); 9434f67d755SEric Taylor } 9444f67d755SEric Taylor nm1slice = strstr(nm1, "s2"); 9454f67d755SEric Taylor nm2slice = strstr(nm2, "s2"); 9464f67d755SEric Taylor if (nm1slice && !nm2slice) { 9474f67d755SEric Taylor return (-1); 9484f67d755SEric Taylor } 9494f67d755SEric Taylor if (!nm1slice && nm2slice) { 9504f67d755SEric Taylor return (1); 9514f67d755SEric Taylor } 9524f67d755SEric Taylor 9534f67d755SEric Taylor rv = strcmp(nm1, nm2); 9544f67d755SEric Taylor if (rv == 0) 9554f67d755SEric Taylor return (0); 9564f67d755SEric Taylor return (rv > 0 ? 1 : -1); 9574f67d755SEric Taylor } 9584f67d755SEric Taylor 9594f67d755SEric Taylor static void 9604f67d755SEric Taylor check_one_slice(avl_tree_t *r, char *diskname, uint_t partno, 9614f67d755SEric Taylor diskaddr_t size, uint_t blksz) 9624f67d755SEric Taylor { 9634f67d755SEric Taylor rdsk_node_t tmpnode; 9644f67d755SEric Taylor rdsk_node_t *node; 9654f67d755SEric Taylor char sname[MAXNAMELEN]; 9664f67d755SEric Taylor 9674f67d755SEric Taylor tmpnode.rn_name = &sname[0]; 9684f67d755SEric Taylor (void) snprintf(tmpnode.rn_name, MAXNAMELEN, "%s%u", 9694f67d755SEric Taylor diskname, partno); 97016d2251eSEric Taylor /* 97116d2251eSEric Taylor * protect against division by zero for disk labels that 97216d2251eSEric Taylor * contain a bogus sector size 97316d2251eSEric Taylor */ 97416d2251eSEric Taylor if (blksz == 0) 97516d2251eSEric Taylor blksz = DEV_BSIZE; 9764f67d755SEric Taylor /* too small to contain a zpool? */ 9774f67d755SEric Taylor if ((size < (SPA_MINDEVSIZE / blksz)) && 9784f67d755SEric Taylor (node = avl_find(r, &tmpnode, NULL))) 9794f67d755SEric Taylor node->rn_nozpool = B_TRUE; 9804f67d755SEric Taylor } 9814f67d755SEric Taylor 9824f67d755SEric Taylor static void 9834f67d755SEric Taylor nozpool_all_slices(avl_tree_t *r, const char *sname) 9844f67d755SEric Taylor { 9854f67d755SEric Taylor char diskname[MAXNAMELEN]; 9864f67d755SEric Taylor char *ptr; 9874f67d755SEric Taylor int i; 9884f67d755SEric Taylor 9894f67d755SEric Taylor (void) strncpy(diskname, sname, MAXNAMELEN); 9904f67d755SEric Taylor if (((ptr = strrchr(diskname, 's')) == NULL) && 9914f67d755SEric Taylor ((ptr = strrchr(diskname, 'p')) == NULL)) 9924f67d755SEric Taylor return; 9934f67d755SEric Taylor ptr[0] = 's'; 9944f67d755SEric Taylor ptr[1] = '\0'; 9954f67d755SEric Taylor for (i = 0; i < NDKMAP; i++) 9964f67d755SEric Taylor check_one_slice(r, diskname, i, 0, 1); 9974f67d755SEric Taylor ptr[0] = 'p'; 9984f67d755SEric Taylor for (i = 0; i <= FD_NUMPART; i++) 9994f67d755SEric Taylor check_one_slice(r, diskname, i, 0, 1); 10004f67d755SEric Taylor } 10014f67d755SEric Taylor 10024f67d755SEric Taylor static void 10034f67d755SEric Taylor check_slices(avl_tree_t *r, int fd, const char *sname) 10044f67d755SEric Taylor { 10054f67d755SEric Taylor struct extvtoc vtoc; 10064f67d755SEric Taylor struct dk_gpt *gpt; 10074f67d755SEric Taylor char diskname[MAXNAMELEN]; 10084f67d755SEric Taylor char *ptr; 10094f67d755SEric Taylor int i; 10104f67d755SEric Taylor 10114f67d755SEric Taylor (void) strncpy(diskname, sname, MAXNAMELEN); 10124f67d755SEric Taylor if ((ptr = strrchr(diskname, 's')) == NULL || !isdigit(ptr[1])) 10134f67d755SEric Taylor return; 10144f67d755SEric Taylor ptr[1] = '\0'; 10154f67d755SEric Taylor 10164f67d755SEric Taylor if (read_extvtoc(fd, &vtoc) >= 0) { 10174f67d755SEric Taylor for (i = 0; i < NDKMAP; i++) 10184f67d755SEric Taylor check_one_slice(r, diskname, i, 10194f67d755SEric Taylor vtoc.v_part[i].p_size, vtoc.v_sectorsz); 10204f67d755SEric Taylor } else if (efi_alloc_and_read(fd, &gpt) >= 0) { 10214f67d755SEric Taylor /* 10224f67d755SEric Taylor * on x86 we'll still have leftover links that point 10234f67d755SEric Taylor * to slices s[9-15], so use NDKMAP instead 10244f67d755SEric Taylor */ 10254f67d755SEric Taylor for (i = 0; i < NDKMAP; i++) 10264f67d755SEric Taylor check_one_slice(r, diskname, i, 10274f67d755SEric Taylor gpt->efi_parts[i].p_size, gpt->efi_lbasize); 10284f67d755SEric Taylor /* nodes p[1-4] are never used with EFI labels */ 10294f67d755SEric Taylor ptr[0] = 'p'; 10304f67d755SEric Taylor for (i = 1; i <= FD_NUMPART; i++) 10314f67d755SEric Taylor check_one_slice(r, diskname, i, 0, 1); 10324f67d755SEric Taylor efi_free(gpt); 10334f67d755SEric Taylor } 10344f67d755SEric Taylor } 10354f67d755SEric Taylor 10364f67d755SEric Taylor static void 10374f67d755SEric Taylor zpool_open_func(void *arg) 10384f67d755SEric Taylor { 10394f67d755SEric Taylor rdsk_node_t *rn = arg; 10404f67d755SEric Taylor struct stat64 statbuf; 10414f67d755SEric Taylor nvlist_t *config; 10424f67d755SEric Taylor int fd; 10434f67d755SEric Taylor 10444f67d755SEric Taylor if (rn->rn_nozpool) 10454f67d755SEric Taylor return; 10464f67d755SEric Taylor if ((fd = openat64(rn->rn_dfd, rn->rn_name, O_RDONLY)) < 0) { 10474f67d755SEric Taylor /* symlink to a device that's no longer there */ 10484f67d755SEric Taylor if (errno == ENOENT) 10494f67d755SEric Taylor nozpool_all_slices(rn->rn_avl, rn->rn_name); 10504f67d755SEric Taylor return; 10514f67d755SEric Taylor } 10524f67d755SEric Taylor /* 10534f67d755SEric Taylor * Ignore failed stats. We only want regular 10544f67d755SEric Taylor * files, character devs and block devs. 10554f67d755SEric Taylor */ 10564f67d755SEric Taylor if (fstat64(fd, &statbuf) != 0 || 10574f67d755SEric Taylor (!S_ISREG(statbuf.st_mode) && 10584f67d755SEric Taylor !S_ISCHR(statbuf.st_mode) && 10594f67d755SEric Taylor !S_ISBLK(statbuf.st_mode))) { 10604f67d755SEric Taylor (void) close(fd); 10614f67d755SEric Taylor return; 10624f67d755SEric Taylor } 10634f67d755SEric Taylor /* this file is too small to hold a zpool */ 10644f67d755SEric Taylor if (S_ISREG(statbuf.st_mode) && 10654f67d755SEric Taylor statbuf.st_size < SPA_MINDEVSIZE) { 10664f67d755SEric Taylor (void) close(fd); 10674f67d755SEric Taylor return; 10684f67d755SEric Taylor } else if (!S_ISREG(statbuf.st_mode)) { 10694f67d755SEric Taylor /* 10704f67d755SEric Taylor * Try to read the disk label first so we don't have to 10714f67d755SEric Taylor * open a bunch of minor nodes that can't have a zpool. 10724f67d755SEric Taylor */ 10734f67d755SEric Taylor check_slices(rn->rn_avl, fd, rn->rn_name); 10744f67d755SEric Taylor } 10754f67d755SEric Taylor 10764f67d755SEric Taylor if ((zpool_read_label(fd, &config)) != 0) { 10774f67d755SEric Taylor (void) close(fd); 10784f67d755SEric Taylor (void) no_memory(rn->rn_hdl); 10794f67d755SEric Taylor return; 10804f67d755SEric Taylor } 10814f67d755SEric Taylor (void) close(fd); 10824f67d755SEric Taylor 10834f67d755SEric Taylor rn->rn_config = config; 10844f67d755SEric Taylor } 10854f67d755SEric Taylor 1086096d22d4SEric Schrock /* 1087*6401734dSWill Andrews * Given a file descriptor, clear (zero) the label information. 1088096d22d4SEric Schrock */ 1089096d22d4SEric Schrock int 1090096d22d4SEric Schrock zpool_clear_label(int fd) 1091096d22d4SEric Schrock { 1092096d22d4SEric Schrock struct stat64 statbuf; 1093096d22d4SEric Schrock int l; 1094096d22d4SEric Schrock vdev_label_t *label; 1095096d22d4SEric Schrock uint64_t size; 1096096d22d4SEric Schrock 1097096d22d4SEric Schrock if (fstat64(fd, &statbuf) == -1) 1098096d22d4SEric Schrock return (0); 1099096d22d4SEric Schrock size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t); 1100096d22d4SEric Schrock 1101096d22d4SEric Schrock if ((label = calloc(sizeof (vdev_label_t), 1)) == NULL) 1102096d22d4SEric Schrock return (-1); 1103096d22d4SEric Schrock 1104096d22d4SEric Schrock for (l = 0; l < VDEV_LABELS; l++) { 1105096d22d4SEric Schrock if (pwrite64(fd, label, sizeof (vdev_label_t), 1106078266a5SMarcel Telka label_offset(size, l)) != sizeof (vdev_label_t)) { 1107078266a5SMarcel Telka free(label); 1108096d22d4SEric Schrock return (-1); 1109078266a5SMarcel Telka } 1110096d22d4SEric Schrock } 1111096d22d4SEric Schrock 1112096d22d4SEric Schrock free(label); 1113096d22d4SEric Schrock return (0); 1114096d22d4SEric Schrock } 1115096d22d4SEric Schrock 1116fa9e4066Sahrens /* 1117fa9e4066Sahrens * Given a list of directories to search, find all pools stored on disk. This 1118fa9e4066Sahrens * includes partial pools which are not available to import. If no args are 1119fa9e4066Sahrens * given (argc is 0), then the default directory (/dev/dsk) is searched. 112024e697d4Sck * poolname or guid (but not both) are provided by the caller when trying 112124e697d4Sck * to import a specific pool. 1122fa9e4066Sahrens */ 112324e697d4Sck static nvlist_t * 1124d41c4376SMark J Musante zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg) 1125fa9e4066Sahrens { 1126d41c4376SMark J Musante int i, dirs = iarg->paths; 1127fa9e4066Sahrens struct dirent64 *dp; 1128fa9e4066Sahrens char path[MAXPATHLEN]; 1129d41c4376SMark J Musante char *end, **dir = iarg->path; 1130842c5645Sjwadams size_t pathleft; 11314f67d755SEric Taylor nvlist_t *ret = NULL; 1132*6401734dSWill Andrews static char *default_dir = ZFS_DISK_ROOT; 1133fa9e4066Sahrens pool_list_t pools = { 0 }; 113499653d4eSeschrock pool_entry_t *pe, *penext; 113599653d4eSeschrock vdev_entry_t *ve, *venext; 113699653d4eSeschrock config_entry_t *ce, *cenext; 113799653d4eSeschrock name_entry_t *ne, *nenext; 11384f67d755SEric Taylor avl_tree_t slice_cache; 11394f67d755SEric Taylor rdsk_node_t *slice; 11404f67d755SEric Taylor void *cookie; 114199653d4eSeschrock 1142d41c4376SMark J Musante if (dirs == 0) { 1143d41c4376SMark J Musante dirs = 1; 1144d41c4376SMark J Musante dir = &default_dir; 1145fa9e4066Sahrens } 1146fa9e4066Sahrens 1147fa9e4066Sahrens /* 1148fa9e4066Sahrens * Go through and read the label configuration information from every 1149fa9e4066Sahrens * possible device, organizing the information according to pool GUID 1150fa9e4066Sahrens * and toplevel GUID. 1151fa9e4066Sahrens */ 1152d41c4376SMark J Musante for (i = 0; i < dirs; i++) { 11534f67d755SEric Taylor tpool_t *t; 1154*6401734dSWill Andrews char rdsk[MAXPATHLEN]; 1155842c5645Sjwadams int dfd; 1156078266a5SMarcel Telka boolean_t config_failed = B_FALSE; 1157078266a5SMarcel Telka DIR *dirp; 1158842c5645Sjwadams 1159842c5645Sjwadams /* use realpath to normalize the path */ 1160d41c4376SMark J Musante if (realpath(dir[i], path) == 0) { 1161ece3d9b3Slling (void) zfs_error_fmt(hdl, EZFS_BADPATH, 1162d41c4376SMark J Musante dgettext(TEXT_DOMAIN, "cannot open '%s'"), dir[i]); 116399653d4eSeschrock goto error; 1164fa9e4066Sahrens } 1165842c5645Sjwadams end = &path[strlen(path)]; 1166842c5645Sjwadams *end++ = '/'; 1167842c5645Sjwadams *end = 0; 1168842c5645Sjwadams pathleft = &path[sizeof (path)] - end; 1169842c5645Sjwadams 1170842c5645Sjwadams /* 1171842c5645Sjwadams * Using raw devices instead of block devices when we're 1172842c5645Sjwadams * reading the labels skips a bunch of slow operations during 1173842c5645Sjwadams * close(2) processing, so we replace /dev/dsk with /dev/rdsk. 1174842c5645Sjwadams */ 1175*6401734dSWill Andrews if (strcmp(path, ZFS_DISK_ROOTD) == 0) 1176*6401734dSWill Andrews (void) strlcpy(rdsk, ZFS_RDISK_ROOTD, sizeof (rdsk)); 1177842c5645Sjwadams else 1178*6401734dSWill Andrews (void) strlcpy(rdsk, path, sizeof (rdsk)); 1179fa9e4066Sahrens 1180842c5645Sjwadams if ((dfd = open64(rdsk, O_RDONLY)) < 0 || 1181842c5645Sjwadams (dirp = fdopendir(dfd)) == NULL) { 1182078266a5SMarcel Telka if (dfd >= 0) 1183078266a5SMarcel Telka (void) close(dfd); 118499653d4eSeschrock zfs_error_aux(hdl, strerror(errno)); 1185ece3d9b3Slling (void) zfs_error_fmt(hdl, EZFS_BADPATH, 118699653d4eSeschrock dgettext(TEXT_DOMAIN, "cannot open '%s'"), 1187842c5645Sjwadams rdsk); 118899653d4eSeschrock goto error; 1189fa9e4066Sahrens } 1190fa9e4066Sahrens 11914f67d755SEric Taylor avl_create(&slice_cache, slice_cache_compare, 11924f67d755SEric Taylor sizeof (rdsk_node_t), offsetof(rdsk_node_t, rn_node)); 1193fa9e4066Sahrens /* 1194fa9e4066Sahrens * This is not MT-safe, but we have no MT consumers of libzfs 1195fa9e4066Sahrens */ 1196fa9e4066Sahrens while ((dp = readdir64(dirp)) != NULL) { 1197842c5645Sjwadams const char *name = dp->d_name; 1198842c5645Sjwadams if (name[0] == '.' && 1199842c5645Sjwadams (name[1] == 0 || (name[1] == '.' && name[2] == 0))) 1200fa9e4066Sahrens continue; 1201fa9e4066Sahrens 12024f67d755SEric Taylor slice = zfs_alloc(hdl, sizeof (rdsk_node_t)); 12034f67d755SEric Taylor slice->rn_name = zfs_strdup(hdl, name); 12044f67d755SEric Taylor slice->rn_avl = &slice_cache; 12054f67d755SEric Taylor slice->rn_dfd = dfd; 12064f67d755SEric Taylor slice->rn_hdl = hdl; 12074f67d755SEric Taylor slice->rn_nozpool = B_FALSE; 12084f67d755SEric Taylor avl_add(&slice_cache, slice); 12094f67d755SEric Taylor } 12104f67d755SEric Taylor /* 12114f67d755SEric Taylor * create a thread pool to do all of this in parallel; 12124f67d755SEric Taylor * rn_nozpool is not protected, so this is racy in that 12134f67d755SEric Taylor * multiple tasks could decide that the same slice can 12144f67d755SEric Taylor * not hold a zpool, which is benign. Also choose 12154f67d755SEric Taylor * double the number of processors; we hold a lot of 12164f67d755SEric Taylor * locks in the kernel, so going beyond this doesn't 12174f67d755SEric Taylor * buy us much. 12184f67d755SEric Taylor */ 12194f67d755SEric Taylor t = tpool_create(1, 2 * sysconf(_SC_NPROCESSORS_ONLN), 12204f67d755SEric Taylor 0, NULL); 12214f67d755SEric Taylor for (slice = avl_first(&slice_cache); slice; 12224f67d755SEric Taylor (slice = avl_walk(&slice_cache, slice, 12234f67d755SEric Taylor AVL_AFTER))) 12244f67d755SEric Taylor (void) tpool_dispatch(t, zpool_open_func, slice); 12254f67d755SEric Taylor tpool_wait(t); 12264f67d755SEric Taylor tpool_destroy(t); 12274f67d755SEric Taylor 12284f67d755SEric Taylor cookie = NULL; 12294f67d755SEric Taylor while ((slice = avl_destroy_nodes(&slice_cache, 12304f67d755SEric Taylor &cookie)) != NULL) { 1231078266a5SMarcel Telka if (slice->rn_config != NULL && !config_failed) { 12324f67d755SEric Taylor nvlist_t *config = slice->rn_config; 123324e697d4Sck boolean_t matched = B_TRUE; 123424e697d4Sck 1235d41c4376SMark J Musante if (iarg->poolname != NULL) { 123624e697d4Sck char *pname; 12377b0e68eaSck 12387b0e68eaSck matched = nvlist_lookup_string(config, 123924e697d4Sck ZPOOL_CONFIG_POOL_NAME, 12407b0e68eaSck &pname) == 0 && 1241d41c4376SMark J Musante strcmp(iarg->poolname, pname) == 0; 1242d41c4376SMark J Musante } else if (iarg->guid != 0) { 124324e697d4Sck uint64_t this_guid; 1244913f2d80Sck 1245913f2d80Sck matched = nvlist_lookup_uint64(config, 124624e697d4Sck ZPOOL_CONFIG_POOL_GUID, 1247913f2d80Sck &this_guid) == 0 && 1248d41c4376SMark J Musante iarg->guid == this_guid; 124924e697d4Sck } 125024e697d4Sck if (!matched) { 125124e697d4Sck nvlist_free(config); 1252078266a5SMarcel Telka } else { 1253078266a5SMarcel Telka /* 1254078266a5SMarcel Telka * use the non-raw path for the config 1255078266a5SMarcel Telka */ 1256078266a5SMarcel Telka (void) strlcpy(end, slice->rn_name, 1257078266a5SMarcel Telka pathleft); 1258078266a5SMarcel Telka if (add_config(hdl, &pools, path, 1259078266a5SMarcel Telka config) != 0) 1260078266a5SMarcel Telka config_failed = B_TRUE; 126124e697d4Sck } 1262842c5645Sjwadams } 12634f67d755SEric Taylor free(slice->rn_name); 12644f67d755SEric Taylor free(slice); 1265fa9e4066Sahrens } 12664f67d755SEric Taylor avl_destroy(&slice_cache); 1267ccae0b50Seschrock 1268ccae0b50Seschrock (void) closedir(dirp); 1269078266a5SMarcel Telka 1270078266a5SMarcel Telka if (config_failed) 1271078266a5SMarcel Telka goto error; 1272fa9e4066Sahrens } 1273fa9e4066Sahrens 1274d41c4376SMark J Musante ret = get_configs(hdl, &pools, iarg->can_be_active); 127599653d4eSeschrock 127699653d4eSeschrock error: 127799653d4eSeschrock for (pe = pools.pools; pe != NULL; pe = penext) { 127899653d4eSeschrock penext = pe->pe_next; 127999653d4eSeschrock for (ve = pe->pe_vdevs; ve != NULL; ve = venext) { 128099653d4eSeschrock venext = ve->ve_next; 128199653d4eSeschrock for (ce = ve->ve_configs; ce != NULL; ce = cenext) { 128299653d4eSeschrock cenext = ce->ce_next; 1283aab83bb8SJosef 'Jeff' Sipek nvlist_free(ce->ce_config); 128499653d4eSeschrock free(ce); 128599653d4eSeschrock } 128699653d4eSeschrock free(ve); 128799653d4eSeschrock } 128899653d4eSeschrock free(pe); 128999653d4eSeschrock } 129099653d4eSeschrock 129199653d4eSeschrock for (ne = pools.names; ne != NULL; ne = nenext) { 129299653d4eSeschrock nenext = ne->ne_next; 1293078266a5SMarcel Telka free(ne->ne_name); 129499653d4eSeschrock free(ne); 129599653d4eSeschrock } 129699653d4eSeschrock 1297fa9e4066Sahrens return (ret); 1298fa9e4066Sahrens } 1299fa9e4066Sahrens 130024e697d4Sck nvlist_t * 130124e697d4Sck zpool_find_import(libzfs_handle_t *hdl, int argc, char **argv) 130224e697d4Sck { 1303d41c4376SMark J Musante importargs_t iarg = { 0 }; 130424e697d4Sck 1305d41c4376SMark J Musante iarg.paths = argc; 1306d41c4376SMark J Musante iarg.path = argv; 130724e697d4Sck 1308d41c4376SMark J Musante return (zpool_find_import_impl(hdl, &iarg)); 130924e697d4Sck } 131024e697d4Sck 13112f8aaab3Seschrock /* 13122f8aaab3Seschrock * Given a cache file, return the contents as a list of importable pools. 131324e697d4Sck * poolname or guid (but not both) are provided by the caller when trying 131424e697d4Sck * to import a specific pool. 13152f8aaab3Seschrock */ 13162f8aaab3Seschrock nvlist_t * 13173a57275aSck zpool_find_import_cached(libzfs_handle_t *hdl, const char *cachefile, 1318e829d913Sck char *poolname, uint64_t guid) 13192f8aaab3Seschrock { 13202f8aaab3Seschrock char *buf; 13212f8aaab3Seschrock int fd; 13222f8aaab3Seschrock struct stat64 statbuf; 13232f8aaab3Seschrock nvlist_t *raw, *src, *dst; 13242f8aaab3Seschrock nvlist_t *pools; 13252f8aaab3Seschrock nvpair_t *elem; 13262f8aaab3Seschrock char *name; 132724e697d4Sck uint64_t this_guid; 13282f8aaab3Seschrock boolean_t active; 13292f8aaab3Seschrock 133024e697d4Sck verify(poolname == NULL || guid == 0); 133124e697d4Sck 13322f8aaab3Seschrock if ((fd = open(cachefile, O_RDONLY)) < 0) { 13332f8aaab3Seschrock zfs_error_aux(hdl, "%s", strerror(errno)); 13342f8aaab3Seschrock (void) zfs_error(hdl, EZFS_BADCACHE, 13352f8aaab3Seschrock dgettext(TEXT_DOMAIN, "failed to open cache file")); 13362f8aaab3Seschrock return (NULL); 13372f8aaab3Seschrock } 13382f8aaab3Seschrock 13392f8aaab3Seschrock if (fstat64(fd, &statbuf) != 0) { 13402f8aaab3Seschrock zfs_error_aux(hdl, "%s", strerror(errno)); 13412f8aaab3Seschrock (void) close(fd); 13422f8aaab3Seschrock (void) zfs_error(hdl, EZFS_BADCACHE, 13432f8aaab3Seschrock dgettext(TEXT_DOMAIN, "failed to get size of cache file")); 13442f8aaab3Seschrock return (NULL); 13452f8aaab3Seschrock } 13462f8aaab3Seschrock 13472f8aaab3Seschrock if ((buf = zfs_alloc(hdl, statbuf.st_size)) == NULL) { 13482f8aaab3Seschrock (void) close(fd); 13492f8aaab3Seschrock return (NULL); 13502f8aaab3Seschrock } 13512f8aaab3Seschrock 13522f8aaab3Seschrock if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 13532f8aaab3Seschrock (void) close(fd); 13542f8aaab3Seschrock free(buf); 13552f8aaab3Seschrock (void) zfs_error(hdl, EZFS_BADCACHE, 13562f8aaab3Seschrock dgettext(TEXT_DOMAIN, 13572f8aaab3Seschrock "failed to read cache file contents")); 13582f8aaab3Seschrock return (NULL); 13592f8aaab3Seschrock } 13602f8aaab3Seschrock 13612f8aaab3Seschrock (void) close(fd); 13622f8aaab3Seschrock 13632f8aaab3Seschrock if (nvlist_unpack(buf, statbuf.st_size, &raw, 0) != 0) { 13642f8aaab3Seschrock free(buf); 13652f8aaab3Seschrock (void) zfs_error(hdl, EZFS_BADCACHE, 13662f8aaab3Seschrock dgettext(TEXT_DOMAIN, 13672f8aaab3Seschrock "invalid or corrupt cache file contents")); 13682f8aaab3Seschrock return (NULL); 13692f8aaab3Seschrock } 13702f8aaab3Seschrock 13712f8aaab3Seschrock free(buf); 13722f8aaab3Seschrock 13732f8aaab3Seschrock /* 13742f8aaab3Seschrock * Go through and get the current state of the pools and refresh their 13752f8aaab3Seschrock * state. 13762f8aaab3Seschrock */ 13772f8aaab3Seschrock if (nvlist_alloc(&pools, 0, 0) != 0) { 13782f8aaab3Seschrock (void) no_memory(hdl); 13792f8aaab3Seschrock nvlist_free(raw); 13802f8aaab3Seschrock return (NULL); 13812f8aaab3Seschrock } 13822f8aaab3Seschrock 13832f8aaab3Seschrock elem = NULL; 13842f8aaab3Seschrock while ((elem = nvlist_next_nvpair(raw, elem)) != NULL) { 1385b18d6b0eSMatthew Ahrens src = fnvpair_value_nvlist(elem); 13862f8aaab3Seschrock 1387b18d6b0eSMatthew Ahrens name = fnvlist_lookup_string(src, ZPOOL_CONFIG_POOL_NAME); 138824e697d4Sck if (poolname != NULL && strcmp(poolname, name) != 0) 138924e697d4Sck continue; 139024e697d4Sck 1391b18d6b0eSMatthew Ahrens this_guid = fnvlist_lookup_uint64(src, ZPOOL_CONFIG_POOL_GUID); 1392b18d6b0eSMatthew Ahrens if (guid != 0 && guid != this_guid) 1393b18d6b0eSMatthew Ahrens continue; 13942f8aaab3Seschrock 1395e829d913Sck if (pool_active(hdl, name, this_guid, &active) != 0) { 1396e829d913Sck nvlist_free(raw); 1397e829d913Sck nvlist_free(pools); 1398e829d913Sck return (NULL); 1399e829d913Sck } 14002f8aaab3Seschrock 1401e829d913Sck if (active) 1402e829d913Sck continue; 14032f8aaab3Seschrock 1404e829d913Sck if ((dst = refresh_config(hdl, src)) == NULL) { 1405e829d913Sck nvlist_free(raw); 1406e829d913Sck nvlist_free(pools); 1407e829d913Sck return (NULL); 1408e829d913Sck } 14092f8aaab3Seschrock 1410e829d913Sck if (nvlist_add_nvlist(pools, nvpair_name(elem), dst) != 0) { 1411e829d913Sck (void) no_memory(hdl); 14122f8aaab3Seschrock nvlist_free(dst); 1413e829d913Sck nvlist_free(raw); 1414e829d913Sck nvlist_free(pools); 1415e829d913Sck return (NULL); 14162f8aaab3Seschrock } 1417e829d913Sck nvlist_free(dst); 14182f8aaab3Seschrock } 14192f8aaab3Seschrock 14202f8aaab3Seschrock nvlist_free(raw); 14212f8aaab3Seschrock return (pools); 14222f8aaab3Seschrock } 14232f8aaab3Seschrock 1424d41c4376SMark J Musante static int 1425d41c4376SMark J Musante name_or_guid_exists(zpool_handle_t *zhp, void *data) 1426d41c4376SMark J Musante { 1427d41c4376SMark J Musante importargs_t *import = data; 1428d41c4376SMark J Musante int found = 0; 1429d41c4376SMark J Musante 1430d41c4376SMark J Musante if (import->poolname != NULL) { 1431d41c4376SMark J Musante char *pool_name; 1432d41c4376SMark J Musante 1433d41c4376SMark J Musante verify(nvlist_lookup_string(zhp->zpool_config, 1434d41c4376SMark J Musante ZPOOL_CONFIG_POOL_NAME, &pool_name) == 0); 1435d41c4376SMark J Musante if (strcmp(pool_name, import->poolname) == 0) 1436d41c4376SMark J Musante found = 1; 1437d41c4376SMark J Musante } else { 1438d41c4376SMark J Musante uint64_t pool_guid; 1439d41c4376SMark J Musante 1440d41c4376SMark J Musante verify(nvlist_lookup_uint64(zhp->zpool_config, 1441d41c4376SMark J Musante ZPOOL_CONFIG_POOL_GUID, &pool_guid) == 0); 1442d41c4376SMark J Musante if (pool_guid == import->guid) 1443d41c4376SMark J Musante found = 1; 1444d41c4376SMark J Musante } 1445d41c4376SMark J Musante 1446d41c4376SMark J Musante zpool_close(zhp); 1447d41c4376SMark J Musante return (found); 1448d41c4376SMark J Musante } 1449d41c4376SMark J Musante 1450d41c4376SMark J Musante nvlist_t * 1451d41c4376SMark J Musante zpool_search_import(libzfs_handle_t *hdl, importargs_t *import) 1452d41c4376SMark J Musante { 1453d41c4376SMark J Musante verify(import->poolname == NULL || import->guid == 0); 1454d41c4376SMark J Musante 1455d41c4376SMark J Musante if (import->unique) 1456d41c4376SMark J Musante import->exists = zpool_iter(hdl, name_or_guid_exists, import); 1457d41c4376SMark J Musante 1458d41c4376SMark J Musante if (import->cachefile != NULL) 1459d41c4376SMark J Musante return (zpool_find_import_cached(hdl, import->cachefile, 1460d41c4376SMark J Musante import->poolname, import->guid)); 1461d41c4376SMark J Musante 1462d41c4376SMark J Musante return (zpool_find_import_impl(hdl, import)); 1463d41c4376SMark J Musante } 14642f8aaab3Seschrock 146599653d4eSeschrock boolean_t 1466fa9e4066Sahrens find_guid(nvlist_t *nv, uint64_t guid) 1467fa9e4066Sahrens { 1468fa9e4066Sahrens uint64_t tmp; 1469fa9e4066Sahrens nvlist_t **child; 1470fa9e4066Sahrens uint_t c, children; 1471fa9e4066Sahrens 1472fa9e4066Sahrens verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &tmp) == 0); 1473fa9e4066Sahrens if (tmp == guid) 147499653d4eSeschrock return (B_TRUE); 1475fa9e4066Sahrens 1476fa9e4066Sahrens if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, 1477fa9e4066Sahrens &child, &children) == 0) { 1478fa9e4066Sahrens for (c = 0; c < children; c++) 1479fa9e4066Sahrens if (find_guid(child[c], guid)) 148099653d4eSeschrock return (B_TRUE); 148199653d4eSeschrock } 148299653d4eSeschrock 148399653d4eSeschrock return (B_FALSE); 148499653d4eSeschrock } 148599653d4eSeschrock 1486fa94a07fSbrendan typedef struct aux_cbdata { 1487fa94a07fSbrendan const char *cb_type; 148899653d4eSeschrock uint64_t cb_guid; 148999653d4eSeschrock zpool_handle_t *cb_zhp; 1490fa94a07fSbrendan } aux_cbdata_t; 149199653d4eSeschrock 149299653d4eSeschrock static int 1493fa94a07fSbrendan find_aux(zpool_handle_t *zhp, void *data) 149499653d4eSeschrock { 1495fa94a07fSbrendan aux_cbdata_t *cbp = data; 1496fa94a07fSbrendan nvlist_t **list; 1497fa94a07fSbrendan uint_t i, count; 149899653d4eSeschrock uint64_t guid; 149999653d4eSeschrock nvlist_t *nvroot; 150099653d4eSeschrock 150199653d4eSeschrock verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE, 150299653d4eSeschrock &nvroot) == 0); 150399653d4eSeschrock 1504fa94a07fSbrendan if (nvlist_lookup_nvlist_array(nvroot, cbp->cb_type, 1505fa94a07fSbrendan &list, &count) == 0) { 1506fa94a07fSbrendan for (i = 0; i < count; i++) { 1507fa94a07fSbrendan verify(nvlist_lookup_uint64(list[i], 150899653d4eSeschrock ZPOOL_CONFIG_GUID, &guid) == 0); 150999653d4eSeschrock if (guid == cbp->cb_guid) { 151099653d4eSeschrock cbp->cb_zhp = zhp; 151199653d4eSeschrock return (1); 151299653d4eSeschrock } 151399653d4eSeschrock } 1514fa9e4066Sahrens } 1515fa9e4066Sahrens 151699653d4eSeschrock zpool_close(zhp); 151799653d4eSeschrock return (0); 1518fa9e4066Sahrens } 1519fa9e4066Sahrens 1520fa9e4066Sahrens /* 152199653d4eSeschrock * Determines if the pool is in use. If so, it returns true and the state of 1522fa9e4066Sahrens * the pool as well as the name of the pool. Both strings are allocated and 1523fa9e4066Sahrens * must be freed by the caller. 1524fa9e4066Sahrens */ 1525fa9e4066Sahrens int 152699653d4eSeschrock zpool_in_use(libzfs_handle_t *hdl, int fd, pool_state_t *state, char **namestr, 152799653d4eSeschrock boolean_t *inuse) 1528fa9e4066Sahrens { 1529fa9e4066Sahrens nvlist_t *config; 1530fa9e4066Sahrens char *name; 153199653d4eSeschrock boolean_t ret; 1532fa9e4066Sahrens uint64_t guid, vdev_guid; 1533fa9e4066Sahrens zpool_handle_t *zhp; 1534fa9e4066Sahrens nvlist_t *pool_config; 153539c23413Seschrock uint64_t stateval, isspare; 1536fa94a07fSbrendan aux_cbdata_t cb = { 0 }; 153794de1d4cSeschrock boolean_t isactive; 153899653d4eSeschrock 153999653d4eSeschrock *inuse = B_FALSE; 1540fa9e4066Sahrens 154199653d4eSeschrock if (zpool_read_label(fd, &config) != 0) { 154299653d4eSeschrock (void) no_memory(hdl); 154399653d4eSeschrock return (-1); 154499653d4eSeschrock } 154599653d4eSeschrock 154699653d4eSeschrock if (config == NULL) 154799653d4eSeschrock return (0); 1548fa9e4066Sahrens 1549fa9e4066Sahrens verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, 155046a2abf2Seschrock &stateval) == 0); 1551fa9e4066Sahrens verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID, 1552fa9e4066Sahrens &vdev_guid) == 0); 1553fa9e4066Sahrens 1554fa94a07fSbrendan if (stateval != POOL_STATE_SPARE && stateval != POOL_STATE_L2CACHE) { 155599653d4eSeschrock verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 155699653d4eSeschrock &name) == 0); 155799653d4eSeschrock verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, 155899653d4eSeschrock &guid) == 0); 155999653d4eSeschrock } 156099653d4eSeschrock 156146a2abf2Seschrock switch (stateval) { 1562fa9e4066Sahrens case POOL_STATE_EXPORTED: 1563f9af39baSGeorge Wilson /* 1564f9af39baSGeorge Wilson * A pool with an exported state may in fact be imported 1565f9af39baSGeorge Wilson * read-only, so check the in-core state to see if it's 1566f9af39baSGeorge Wilson * active and imported read-only. If it is, set 1567f9af39baSGeorge Wilson * its state to active. 1568f9af39baSGeorge Wilson */ 1569f9af39baSGeorge Wilson if (pool_active(hdl, name, guid, &isactive) == 0 && isactive && 1570fb13f48fSJosef 'Jeff' Sipek (zhp = zpool_open_canfail(hdl, name)) != NULL) { 1571fb13f48fSJosef 'Jeff' Sipek if (zpool_get_prop_int(zhp, ZPOOL_PROP_READONLY, NULL)) 1572fb13f48fSJosef 'Jeff' Sipek stateval = POOL_STATE_ACTIVE; 1573fb13f48fSJosef 'Jeff' Sipek 1574fb13f48fSJosef 'Jeff' Sipek /* 1575fb13f48fSJosef 'Jeff' Sipek * All we needed the zpool handle for is the 1576fb13f48fSJosef 'Jeff' Sipek * readonly prop check. 1577fb13f48fSJosef 'Jeff' Sipek */ 1578fb13f48fSJosef 'Jeff' Sipek zpool_close(zhp); 1579fb13f48fSJosef 'Jeff' Sipek } 1580f9af39baSGeorge Wilson 158199653d4eSeschrock ret = B_TRUE; 1582fa9e4066Sahrens break; 1583fa9e4066Sahrens 1584fa9e4066Sahrens case POOL_STATE_ACTIVE: 1585fa9e4066Sahrens /* 1586fa9e4066Sahrens * For an active pool, we have to determine if it's really part 1587eaca9bbdSeschrock * of a currently active pool (in which case the pool will exist 1588eaca9bbdSeschrock * and the guid will be the same), or whether it's part of an 1589eaca9bbdSeschrock * active pool that was disconnected without being explicitly 1590eaca9bbdSeschrock * exported. 1591fa9e4066Sahrens */ 159294de1d4cSeschrock if (pool_active(hdl, name, guid, &isactive) != 0) { 159394de1d4cSeschrock nvlist_free(config); 159494de1d4cSeschrock return (-1); 159594de1d4cSeschrock } 159694de1d4cSeschrock 159794de1d4cSeschrock if (isactive) { 1598fa9e4066Sahrens /* 1599fa9e4066Sahrens * Because the device may have been removed while 1600fa9e4066Sahrens * offlined, we only report it as active if the vdev is 1601fa9e4066Sahrens * still present in the config. Otherwise, pretend like 1602fa9e4066Sahrens * it's not in use. 1603fa9e4066Sahrens */ 160499653d4eSeschrock if ((zhp = zpool_open_canfail(hdl, name)) != NULL && 1605088e9d47Seschrock (pool_config = zpool_get_config(zhp, NULL)) 1606088e9d47Seschrock != NULL) { 1607fa9e4066Sahrens nvlist_t *nvroot; 1608fa9e4066Sahrens 1609fa9e4066Sahrens verify(nvlist_lookup_nvlist(pool_config, 1610fa9e4066Sahrens ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); 161146a2abf2Seschrock ret = find_guid(nvroot, vdev_guid); 1612fa9e4066Sahrens } else { 161399653d4eSeschrock ret = B_FALSE; 1614fa9e4066Sahrens } 161599653d4eSeschrock 161639c23413Seschrock /* 161739c23413Seschrock * If this is an active spare within another pool, we 161839c23413Seschrock * treat it like an unused hot spare. This allows the 161939c23413Seschrock * user to create a pool with a hot spare that currently 162039c23413Seschrock * in use within another pool. Since we return B_TRUE, 162139c23413Seschrock * libdiskmgt will continue to prevent generic consumers 162239c23413Seschrock * from using the device. 162339c23413Seschrock */ 162439c23413Seschrock if (ret && nvlist_lookup_uint64(config, 162539c23413Seschrock ZPOOL_CONFIG_IS_SPARE, &isspare) == 0 && isspare) 162639c23413Seschrock stateval = POOL_STATE_SPARE; 162739c23413Seschrock 162899653d4eSeschrock if (zhp != NULL) 162999653d4eSeschrock zpool_close(zhp); 1630fa9e4066Sahrens } else { 163146a2abf2Seschrock stateval = POOL_STATE_POTENTIALLY_ACTIVE; 163299653d4eSeschrock ret = B_TRUE; 163399653d4eSeschrock } 163499653d4eSeschrock break; 163599653d4eSeschrock 163699653d4eSeschrock case POOL_STATE_SPARE: 163799653d4eSeschrock /* 163899653d4eSeschrock * For a hot spare, it can be either definitively in use, or 163999653d4eSeschrock * potentially active. To determine if it's in use, we iterate 164099653d4eSeschrock * over all pools in the system and search for one with a spare 164199653d4eSeschrock * with a matching guid. 164299653d4eSeschrock * 164399653d4eSeschrock * Due to the shared nature of spares, we don't actually report 164499653d4eSeschrock * the potentially active case as in use. This means the user 164599653d4eSeschrock * can freely create pools on the hot spares of exported pools, 164699653d4eSeschrock * but to do otherwise makes the resulting code complicated, and 164799653d4eSeschrock * we end up having to deal with this case anyway. 164899653d4eSeschrock */ 164999653d4eSeschrock cb.cb_zhp = NULL; 165099653d4eSeschrock cb.cb_guid = vdev_guid; 1651fa94a07fSbrendan cb.cb_type = ZPOOL_CONFIG_SPARES; 1652fa94a07fSbrendan if (zpool_iter(hdl, find_aux, &cb) == 1) { 1653fa94a07fSbrendan name = (char *)zpool_get_name(cb.cb_zhp); 1654078266a5SMarcel Telka ret = B_TRUE; 1655fa94a07fSbrendan } else { 1656078266a5SMarcel Telka ret = B_FALSE; 1657fa94a07fSbrendan } 1658fa94a07fSbrendan break; 1659fa94a07fSbrendan 1660fa94a07fSbrendan case POOL_STATE_L2CACHE: 1661fa94a07fSbrendan 1662fa94a07fSbrendan /* 1663fa94a07fSbrendan * Check if any pool is currently using this l2cache device. 1664fa94a07fSbrendan */ 1665fa94a07fSbrendan cb.cb_zhp = NULL; 1666fa94a07fSbrendan cb.cb_guid = vdev_guid; 1667fa94a07fSbrendan cb.cb_type = ZPOOL_CONFIG_L2CACHE; 1668fa94a07fSbrendan if (zpool_iter(hdl, find_aux, &cb) == 1) { 166999653d4eSeschrock name = (char *)zpool_get_name(cb.cb_zhp); 1670078266a5SMarcel Telka ret = B_TRUE; 167199653d4eSeschrock } else { 1672078266a5SMarcel Telka ret = B_FALSE; 1673fa9e4066Sahrens } 1674fa9e4066Sahrens break; 1675fa9e4066Sahrens 1676fa9e4066Sahrens default: 167799653d4eSeschrock ret = B_FALSE; 1678fa9e4066Sahrens } 1679fa9e4066Sahrens 168046a2abf2Seschrock 168146a2abf2Seschrock if (ret) { 168299653d4eSeschrock if ((*namestr = zfs_strdup(hdl, name)) == NULL) { 1683c6765aabSeschrock if (cb.cb_zhp) 1684c6765aabSeschrock zpool_close(cb.cb_zhp); 168599653d4eSeschrock nvlist_free(config); 168699653d4eSeschrock return (-1); 168799653d4eSeschrock } 168846a2abf2Seschrock *state = (pool_state_t)stateval; 168946a2abf2Seschrock } 169046a2abf2Seschrock 169199653d4eSeschrock if (cb.cb_zhp) 169299653d4eSeschrock zpool_close(cb.cb_zhp); 169399653d4eSeschrock 1694fa9e4066Sahrens nvlist_free(config); 169599653d4eSeschrock *inuse = ret; 169699653d4eSeschrock return (0); 1697fa9e4066Sahrens } 1698