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 */ 21*078266a5SMarcel Telka 22fa9e4066Sahrens /* 23*078266a5SMarcel Telka * Copyright 2015 Nexenta Systems, Inc. All rights reserved. 24f9af39baSGeorge Wilson * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 25b18d6b0eSMatthew Ahrens * Copyright (c) 2013 by Delphix. All rights reserved. 26fa9e4066Sahrens */ 27fa9e4066Sahrens 28fa9e4066Sahrens /* 29fa9e4066Sahrens * Pool import support functions. 30fa9e4066Sahrens * 31fa9e4066Sahrens * To import a pool, we rely on reading the configuration information from the 32fa9e4066Sahrens * ZFS label of each device. If we successfully read the label, then we 33fa9e4066Sahrens * organize the configuration information in the following hierarchy: 34fa9e4066Sahrens * 35fa9e4066Sahrens * pool guid -> toplevel vdev guid -> label txg 36fa9e4066Sahrens * 37fa9e4066Sahrens * Duplicate entries matching this same tuple will be discarded. Once we have 38fa9e4066Sahrens * examined every device, we pick the best label txg config for each toplevel 39fa9e4066Sahrens * vdev. We then arrange these toplevel vdevs into a complete pool config, and 40fa9e4066Sahrens * update any paths that have changed. Finally, we attempt to import the pool 41fa9e4066Sahrens * using our derived config, and record the results. 42fa9e4066Sahrens */ 43fa9e4066Sahrens 444f67d755SEric Taylor #include <ctype.h> 45fa9e4066Sahrens #include <devid.h> 46fa9e4066Sahrens #include <dirent.h> 47fa9e4066Sahrens #include <errno.h> 48fa9e4066Sahrens #include <libintl.h> 494f67d755SEric Taylor #include <stddef.h> 50fa9e4066Sahrens #include <stdlib.h> 51fa9e4066Sahrens #include <string.h> 52fa9e4066Sahrens #include <sys/stat.h> 53fa9e4066Sahrens #include <unistd.h> 54fa9e4066Sahrens #include <fcntl.h> 554f67d755SEric Taylor #include <sys/vtoc.h> 564f67d755SEric Taylor #include <sys/dktp/fdisk.h> 574f67d755SEric Taylor #include <sys/efi_partition.h> 584f67d755SEric Taylor #include <thread_pool.h> 59fa9e4066Sahrens 60fa9e4066Sahrens #include <sys/vdev_impl.h> 61fa9e4066Sahrens 62fa9e4066Sahrens #include "libzfs.h" 63fa9e4066Sahrens #include "libzfs_impl.h" 64fa9e4066Sahrens 65fa9e4066Sahrens /* 66fa9e4066Sahrens * Intermediate structures used to gather configuration information. 67fa9e4066Sahrens */ 68fa9e4066Sahrens typedef struct config_entry { 69fa9e4066Sahrens uint64_t ce_txg; 70fa9e4066Sahrens nvlist_t *ce_config; 71fa9e4066Sahrens struct config_entry *ce_next; 72fa9e4066Sahrens } config_entry_t; 73fa9e4066Sahrens 74fa9e4066Sahrens typedef struct vdev_entry { 75fa9e4066Sahrens uint64_t ve_guid; 76fa9e4066Sahrens config_entry_t *ve_configs; 77fa9e4066Sahrens struct vdev_entry *ve_next; 78fa9e4066Sahrens } vdev_entry_t; 79fa9e4066Sahrens 80fa9e4066Sahrens typedef struct pool_entry { 81fa9e4066Sahrens uint64_t pe_guid; 82fa9e4066Sahrens vdev_entry_t *pe_vdevs; 83fa9e4066Sahrens struct pool_entry *pe_next; 84fa9e4066Sahrens } pool_entry_t; 85fa9e4066Sahrens 86fa9e4066Sahrens typedef struct name_entry { 8799653d4eSeschrock char *ne_name; 88fa9e4066Sahrens uint64_t ne_guid; 89fa9e4066Sahrens struct name_entry *ne_next; 90fa9e4066Sahrens } name_entry_t; 91fa9e4066Sahrens 92fa9e4066Sahrens typedef struct pool_list { 93fa9e4066Sahrens pool_entry_t *pools; 94fa9e4066Sahrens name_entry_t *names; 95fa9e4066Sahrens } pool_list_t; 96fa9e4066Sahrens 97fa9e4066Sahrens static char * 98fa9e4066Sahrens get_devid(const char *path) 99fa9e4066Sahrens { 100fa9e4066Sahrens int fd; 101fa9e4066Sahrens ddi_devid_t devid; 102fa9e4066Sahrens char *minor, *ret; 103fa9e4066Sahrens 104fa9e4066Sahrens if ((fd = open(path, O_RDONLY)) < 0) 105fa9e4066Sahrens return (NULL); 106fa9e4066Sahrens 107fa9e4066Sahrens minor = NULL; 108fa9e4066Sahrens ret = NULL; 109fa9e4066Sahrens if (devid_get(fd, &devid) == 0) { 110fa9e4066Sahrens if (devid_get_minor_name(fd, &minor) == 0) 111fa9e4066Sahrens ret = devid_str_encode(devid, minor); 112fa9e4066Sahrens if (minor != NULL) 113fa9e4066Sahrens devid_str_free(minor); 114fa9e4066Sahrens devid_free(devid); 115fa9e4066Sahrens } 116c67d9675Seschrock (void) close(fd); 117fa9e4066Sahrens 118fa9e4066Sahrens return (ret); 119fa9e4066Sahrens } 120fa9e4066Sahrens 121fa9e4066Sahrens 122fa9e4066Sahrens /* 123fa9e4066Sahrens * Go through and fix up any path and/or devid information for the given vdev 124fa9e4066Sahrens * configuration. 125fa9e4066Sahrens */ 12699653d4eSeschrock static int 127fa9e4066Sahrens fix_paths(nvlist_t *nv, name_entry_t *names) 128fa9e4066Sahrens { 129fa9e4066Sahrens nvlist_t **child; 130fa9e4066Sahrens uint_t c, children; 131fa9e4066Sahrens uint64_t guid; 132c67d9675Seschrock name_entry_t *ne, *best; 133c67d9675Seschrock char *path, *devid; 134c67d9675Seschrock int matched; 135fa9e4066Sahrens 136fa9e4066Sahrens if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, 137fa9e4066Sahrens &child, &children) == 0) { 138fa9e4066Sahrens for (c = 0; c < children; c++) 13999653d4eSeschrock if (fix_paths(child[c], names) != 0) 14099653d4eSeschrock return (-1); 14199653d4eSeschrock return (0); 142fa9e4066Sahrens } 143fa9e4066Sahrens 144fa9e4066Sahrens /* 145fa9e4066Sahrens * This is a leaf (file or disk) vdev. In either case, go through 146fa9e4066Sahrens * the name list and see if we find a matching guid. If so, replace 147fa9e4066Sahrens * the path and see if we can calculate a new devid. 148c67d9675Seschrock * 149c67d9675Seschrock * There may be multiple names associated with a particular guid, in 150c67d9675Seschrock * which case we have overlapping slices or multiple paths to the same 151c67d9675Seschrock * disk. If this is the case, then we want to pick the path that is 152c67d9675Seschrock * the most similar to the original, where "most similar" is the number 153c67d9675Seschrock * of matching characters starting from the end of the path. This will 154c67d9675Seschrock * preserve slice numbers even if the disks have been reorganized, and 155c67d9675Seschrock * will also catch preferred disk names if multiple paths exist. 156fa9e4066Sahrens */ 157fa9e4066Sahrens verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0); 158c67d9675Seschrock if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) != 0) 159c67d9675Seschrock path = NULL; 160c67d9675Seschrock 161c67d9675Seschrock matched = 0; 162c67d9675Seschrock best = NULL; 163c67d9675Seschrock for (ne = names; ne != NULL; ne = ne->ne_next) { 164c67d9675Seschrock if (ne->ne_guid == guid) { 165c67d9675Seschrock const char *src, *dst; 166c67d9675Seschrock int count; 167c67d9675Seschrock 168c67d9675Seschrock if (path == NULL) { 169c67d9675Seschrock best = ne; 170c67d9675Seschrock break; 171c67d9675Seschrock } 172c67d9675Seschrock 173c67d9675Seschrock src = ne->ne_name + strlen(ne->ne_name) - 1; 174c67d9675Seschrock dst = path + strlen(path) - 1; 175c67d9675Seschrock for (count = 0; src >= ne->ne_name && dst >= path; 176c67d9675Seschrock src--, dst--, count++) 177c67d9675Seschrock if (*src != *dst) 178c67d9675Seschrock break; 179c67d9675Seschrock 180c67d9675Seschrock /* 181c67d9675Seschrock * At this point, 'count' is the number of characters 182c67d9675Seschrock * matched from the end. 183c67d9675Seschrock */ 184c67d9675Seschrock if (count > matched || best == NULL) { 185c67d9675Seschrock best = ne; 186c67d9675Seschrock matched = count; 187c67d9675Seschrock } 188c67d9675Seschrock } 189c67d9675Seschrock } 190fa9e4066Sahrens 191c67d9675Seschrock if (best == NULL) 19299653d4eSeschrock return (0); 193fa9e4066Sahrens 19499653d4eSeschrock if (nvlist_add_string(nv, ZPOOL_CONFIG_PATH, best->ne_name) != 0) 19599653d4eSeschrock return (-1); 196fa9e4066Sahrens 197c67d9675Seschrock if ((devid = get_devid(best->ne_name)) == NULL) { 198fa9e4066Sahrens (void) nvlist_remove_all(nv, ZPOOL_CONFIG_DEVID); 199fa9e4066Sahrens } else { 200*078266a5SMarcel Telka if (nvlist_add_string(nv, ZPOOL_CONFIG_DEVID, devid) != 0) { 201*078266a5SMarcel Telka devid_str_free(devid); 20299653d4eSeschrock return (-1); 203*078266a5SMarcel Telka } 204fa9e4066Sahrens devid_str_free(devid); 205fa9e4066Sahrens } 20699653d4eSeschrock 20799653d4eSeschrock return (0); 208fa9e4066Sahrens } 209fa9e4066Sahrens 210fa9e4066Sahrens /* 211fa9e4066Sahrens * Add the given configuration to the list of known devices. 212fa9e4066Sahrens */ 21399653d4eSeschrock static int 21499653d4eSeschrock add_config(libzfs_handle_t *hdl, pool_list_t *pl, const char *path, 21599653d4eSeschrock nvlist_t *config) 216fa9e4066Sahrens { 21799653d4eSeschrock uint64_t pool_guid, vdev_guid, top_guid, txg, state; 218fa9e4066Sahrens pool_entry_t *pe; 219fa9e4066Sahrens vdev_entry_t *ve; 220fa9e4066Sahrens config_entry_t *ce; 221fa9e4066Sahrens name_entry_t *ne; 222fa9e4066Sahrens 22399653d4eSeschrock /* 224fa94a07fSbrendan * If this is a hot spare not currently in use or level 2 cache 225fa94a07fSbrendan * device, add it to the list of names to translate, but don't do 226fa94a07fSbrendan * anything else. 22799653d4eSeschrock */ 22899653d4eSeschrock if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, 229fa94a07fSbrendan &state) == 0 && 230fa94a07fSbrendan (state == POOL_STATE_SPARE || state == POOL_STATE_L2CACHE) && 23199653d4eSeschrock nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID, &vdev_guid) == 0) { 23299653d4eSeschrock if ((ne = zfs_alloc(hdl, sizeof (name_entry_t))) == NULL) 233ccae0b50Seschrock return (-1); 23499653d4eSeschrock 23599653d4eSeschrock if ((ne->ne_name = zfs_strdup(hdl, path)) == NULL) { 23699653d4eSeschrock free(ne); 23799653d4eSeschrock return (-1); 23899653d4eSeschrock } 23999653d4eSeschrock ne->ne_guid = vdev_guid; 24099653d4eSeschrock ne->ne_next = pl->names; 24199653d4eSeschrock pl->names = ne; 24299653d4eSeschrock return (0); 24399653d4eSeschrock } 24499653d4eSeschrock 245fa9e4066Sahrens /* 246fa9e4066Sahrens * If we have a valid config but cannot read any of these fields, then 247fa9e4066Sahrens * it means we have a half-initialized label. In vdev_label_init() 248fa9e4066Sahrens * we write a label with txg == 0 so that we can identify the device 249fa9e4066Sahrens * in case the user refers to the same disk later on. If we fail to 250fa9e4066Sahrens * create the pool, we'll be left with a label in this state 251fa9e4066Sahrens * which should not be considered part of a valid pool. 252fa9e4066Sahrens */ 253fa9e4066Sahrens if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, 254fa9e4066Sahrens &pool_guid) != 0 || 255fa9e4066Sahrens nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID, 256fa9e4066Sahrens &vdev_guid) != 0 || 257fa9e4066Sahrens nvlist_lookup_uint64(config, ZPOOL_CONFIG_TOP_GUID, 258fa9e4066Sahrens &top_guid) != 0 || 259fa9e4066Sahrens nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG, 260fa9e4066Sahrens &txg) != 0 || txg == 0) { 261fa9e4066Sahrens nvlist_free(config); 26299653d4eSeschrock return (0); 263fa9e4066Sahrens } 264fa9e4066Sahrens 265fa9e4066Sahrens /* 266fa9e4066Sahrens * First, see if we know about this pool. If not, then add it to the 267fa9e4066Sahrens * list of known pools. 268fa9e4066Sahrens */ 269fa9e4066Sahrens for (pe = pl->pools; pe != NULL; pe = pe->pe_next) { 270fa9e4066Sahrens if (pe->pe_guid == pool_guid) 271fa9e4066Sahrens break; 272fa9e4066Sahrens } 273fa9e4066Sahrens 274fa9e4066Sahrens if (pe == NULL) { 27599653d4eSeschrock if ((pe = zfs_alloc(hdl, sizeof (pool_entry_t))) == NULL) { 27699653d4eSeschrock nvlist_free(config); 27799653d4eSeschrock return (-1); 27899653d4eSeschrock } 279fa9e4066Sahrens pe->pe_guid = pool_guid; 280fa9e4066Sahrens pe->pe_next = pl->pools; 281fa9e4066Sahrens pl->pools = pe; 282fa9e4066Sahrens } 283fa9e4066Sahrens 284fa9e4066Sahrens /* 285fa9e4066Sahrens * Second, see if we know about this toplevel vdev. Add it if its 286fa9e4066Sahrens * missing. 287fa9e4066Sahrens */ 288fa9e4066Sahrens for (ve = pe->pe_vdevs; ve != NULL; ve = ve->ve_next) { 289fa9e4066Sahrens if (ve->ve_guid == top_guid) 290fa9e4066Sahrens break; 291fa9e4066Sahrens } 292fa9e4066Sahrens 293fa9e4066Sahrens if (ve == NULL) { 29499653d4eSeschrock if ((ve = zfs_alloc(hdl, sizeof (vdev_entry_t))) == NULL) { 29599653d4eSeschrock nvlist_free(config); 29699653d4eSeschrock return (-1); 29799653d4eSeschrock } 298fa9e4066Sahrens ve->ve_guid = top_guid; 299fa9e4066Sahrens ve->ve_next = pe->pe_vdevs; 300fa9e4066Sahrens pe->pe_vdevs = ve; 301fa9e4066Sahrens } 302fa9e4066Sahrens 303fa9e4066Sahrens /* 304fa9e4066Sahrens * Third, see if we have a config with a matching transaction group. If 305fa9e4066Sahrens * so, then we do nothing. Otherwise, add it to the list of known 306fa9e4066Sahrens * configs. 307fa9e4066Sahrens */ 308fa9e4066Sahrens for (ce = ve->ve_configs; ce != NULL; ce = ce->ce_next) { 309fa9e4066Sahrens if (ce->ce_txg == txg) 310fa9e4066Sahrens break; 311fa9e4066Sahrens } 312fa9e4066Sahrens 313fa9e4066Sahrens if (ce == NULL) { 31499653d4eSeschrock if ((ce = zfs_alloc(hdl, sizeof (config_entry_t))) == NULL) { 31599653d4eSeschrock nvlist_free(config); 31699653d4eSeschrock return (-1); 31799653d4eSeschrock } 318fa9e4066Sahrens ce->ce_txg = txg; 319fa9e4066Sahrens ce->ce_config = config; 320fa9e4066Sahrens ce->ce_next = ve->ve_configs; 321fa9e4066Sahrens ve->ve_configs = ce; 322fa9e4066Sahrens } else { 323fa9e4066Sahrens nvlist_free(config); 324fa9e4066Sahrens } 325fa9e4066Sahrens 326fa9e4066Sahrens /* 327fa9e4066Sahrens * At this point we've successfully added our config to the list of 328fa9e4066Sahrens * known configs. The last thing to do is add the vdev guid -> path 329fa9e4066Sahrens * mappings so that we can fix up the configuration as necessary before 330fa9e4066Sahrens * doing the import. 331fa9e4066Sahrens */ 33299653d4eSeschrock if ((ne = zfs_alloc(hdl, sizeof (name_entry_t))) == NULL) 33399653d4eSeschrock return (-1); 33499653d4eSeschrock 33599653d4eSeschrock if ((ne->ne_name = zfs_strdup(hdl, path)) == NULL) { 33699653d4eSeschrock free(ne); 33799653d4eSeschrock return (-1); 33899653d4eSeschrock } 339fa9e4066Sahrens 340fa9e4066Sahrens ne->ne_guid = vdev_guid; 341fa9e4066Sahrens ne->ne_next = pl->names; 342fa9e4066Sahrens pl->names = ne; 34399653d4eSeschrock 34499653d4eSeschrock return (0); 345fa9e4066Sahrens } 346fa9e4066Sahrens 347eaca9bbdSeschrock /* 348eaca9bbdSeschrock * Returns true if the named pool matches the given GUID. 349eaca9bbdSeschrock */ 35094de1d4cSeschrock static int 35194de1d4cSeschrock pool_active(libzfs_handle_t *hdl, const char *name, uint64_t guid, 35294de1d4cSeschrock boolean_t *isactive) 353eaca9bbdSeschrock { 354eaca9bbdSeschrock zpool_handle_t *zhp; 355eaca9bbdSeschrock uint64_t theguid; 356eaca9bbdSeschrock 35794de1d4cSeschrock if (zpool_open_silent(hdl, name, &zhp) != 0) 35894de1d4cSeschrock return (-1); 35994de1d4cSeschrock 36094de1d4cSeschrock if (zhp == NULL) { 36194de1d4cSeschrock *isactive = B_FALSE; 36294de1d4cSeschrock return (0); 36394de1d4cSeschrock } 364eaca9bbdSeschrock 365eaca9bbdSeschrock verify(nvlist_lookup_uint64(zhp->zpool_config, ZPOOL_CONFIG_POOL_GUID, 366eaca9bbdSeschrock &theguid) == 0); 367eaca9bbdSeschrock 368eaca9bbdSeschrock zpool_close(zhp); 369eaca9bbdSeschrock 37094de1d4cSeschrock *isactive = (theguid == guid); 37194de1d4cSeschrock return (0); 372eaca9bbdSeschrock } 373eaca9bbdSeschrock 3742f8aaab3Seschrock static nvlist_t * 3752f8aaab3Seschrock refresh_config(libzfs_handle_t *hdl, nvlist_t *config) 3762f8aaab3Seschrock { 3772f8aaab3Seschrock nvlist_t *nvl; 3782f8aaab3Seschrock zfs_cmd_t zc = { 0 }; 3792f8aaab3Seschrock int err; 3802f8aaab3Seschrock 3812f8aaab3Seschrock if (zcmd_write_conf_nvlist(hdl, &zc, config) != 0) 3822f8aaab3Seschrock return (NULL); 3832f8aaab3Seschrock 3842f8aaab3Seschrock if (zcmd_alloc_dst_nvlist(hdl, &zc, 3852f8aaab3Seschrock zc.zc_nvlist_conf_size * 2) != 0) { 3862f8aaab3Seschrock zcmd_free_nvlists(&zc); 3872f8aaab3Seschrock return (NULL); 3882f8aaab3Seschrock } 3892f8aaab3Seschrock 3902f8aaab3Seschrock while ((err = ioctl(hdl->libzfs_fd, ZFS_IOC_POOL_TRYIMPORT, 3912f8aaab3Seschrock &zc)) != 0 && errno == ENOMEM) { 3922f8aaab3Seschrock if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 3932f8aaab3Seschrock zcmd_free_nvlists(&zc); 3942f8aaab3Seschrock return (NULL); 3952f8aaab3Seschrock } 3962f8aaab3Seschrock } 3972f8aaab3Seschrock 3982f8aaab3Seschrock if (err) { 3992f8aaab3Seschrock zcmd_free_nvlists(&zc); 4002f8aaab3Seschrock return (NULL); 4012f8aaab3Seschrock } 4022f8aaab3Seschrock 4032f8aaab3Seschrock if (zcmd_read_dst_nvlist(hdl, &zc, &nvl) != 0) { 4042f8aaab3Seschrock zcmd_free_nvlists(&zc); 4052f8aaab3Seschrock return (NULL); 4062f8aaab3Seschrock } 4072f8aaab3Seschrock 4082f8aaab3Seschrock zcmd_free_nvlists(&zc); 4092f8aaab3Seschrock return (nvl); 4102f8aaab3Seschrock } 4112f8aaab3Seschrock 41288ecc943SGeorge Wilson /* 41388ecc943SGeorge Wilson * Determine if the vdev id is a hole in the namespace. 41488ecc943SGeorge Wilson */ 41588ecc943SGeorge Wilson boolean_t 41688ecc943SGeorge Wilson vdev_is_hole(uint64_t *hole_array, uint_t holes, uint_t id) 41788ecc943SGeorge Wilson { 41888ecc943SGeorge Wilson for (int c = 0; c < holes; c++) { 41988ecc943SGeorge Wilson 42088ecc943SGeorge Wilson /* Top-level is a hole */ 42188ecc943SGeorge Wilson if (hole_array[c] == id) 42288ecc943SGeorge Wilson return (B_TRUE); 42388ecc943SGeorge Wilson } 42488ecc943SGeorge Wilson return (B_FALSE); 42588ecc943SGeorge Wilson } 42688ecc943SGeorge Wilson 427fa9e4066Sahrens /* 428fa9e4066Sahrens * Convert our list of pools into the definitive set of configurations. We 429fa9e4066Sahrens * start by picking the best config for each toplevel vdev. Once that's done, 430fa9e4066Sahrens * we assemble the toplevel vdevs into a full config for the pool. We make a 431fa9e4066Sahrens * pass to fix up any incorrect paths, and then add it to the main list to 432fa9e4066Sahrens * return to the user. 433fa9e4066Sahrens */ 434fa9e4066Sahrens static nvlist_t * 4353a57275aSck get_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok) 436fa9e4066Sahrens { 43799653d4eSeschrock pool_entry_t *pe; 43899653d4eSeschrock vdev_entry_t *ve; 43999653d4eSeschrock config_entry_t *ce; 44099653d4eSeschrock nvlist_t *ret = NULL, *config = NULL, *tmp, *nvtop, *nvroot; 441fa94a07fSbrendan nvlist_t **spares, **l2cache; 442fa94a07fSbrendan uint_t i, nspares, nl2cache; 44399653d4eSeschrock boolean_t config_seen; 444fa9e4066Sahrens uint64_t best_txg; 445dfbb9432SGeorge Wilson char *name, *hostname; 446dfbb9432SGeorge Wilson uint64_t guid; 44799653d4eSeschrock uint_t children = 0; 44899653d4eSeschrock nvlist_t **child = NULL; 44988ecc943SGeorge Wilson uint_t holes; 45088ecc943SGeorge Wilson uint64_t *hole_array, max_id; 45199653d4eSeschrock uint_t c; 45294de1d4cSeschrock boolean_t isactive; 45395173954Sek uint64_t hostid; 4542f8aaab3Seschrock nvlist_t *nvl; 45524e697d4Sck boolean_t found_one = B_FALSE; 45688ecc943SGeorge Wilson boolean_t valid_top_config = B_FALSE; 457fa9e4066Sahrens 45899653d4eSeschrock if (nvlist_alloc(&ret, 0, 0) != 0) 45999653d4eSeschrock goto nomem; 460fa9e4066Sahrens 46199653d4eSeschrock for (pe = pl->pools; pe != NULL; pe = pe->pe_next) { 46288ecc943SGeorge Wilson uint64_t id, max_txg = 0; 463fa9e4066Sahrens 46499653d4eSeschrock if (nvlist_alloc(&config, NV_UNIQUE_NAME, 0) != 0) 46599653d4eSeschrock goto nomem; 46699653d4eSeschrock config_seen = B_FALSE; 467fa9e4066Sahrens 468fa9e4066Sahrens /* 469fa9e4066Sahrens * Iterate over all toplevel vdevs. Grab the pool configuration 470fa9e4066Sahrens * from the first one we find, and then go through the rest and 471fa9e4066Sahrens * add them as necessary to the 'vdevs' member of the config. 472fa9e4066Sahrens */ 47399653d4eSeschrock for (ve = pe->pe_vdevs; ve != NULL; ve = ve->ve_next) { 474fa9e4066Sahrens 475fa9e4066Sahrens /* 476fa9e4066Sahrens * Determine the best configuration for this vdev by 477fa9e4066Sahrens * selecting the config with the latest transaction 478fa9e4066Sahrens * group. 479fa9e4066Sahrens */ 480fa9e4066Sahrens best_txg = 0; 481fa9e4066Sahrens for (ce = ve->ve_configs; ce != NULL; 482fa9e4066Sahrens ce = ce->ce_next) { 483fa9e4066Sahrens 48499653d4eSeschrock if (ce->ce_txg > best_txg) { 485fa9e4066Sahrens tmp = ce->ce_config; 48699653d4eSeschrock best_txg = ce->ce_txg; 48799653d4eSeschrock } 488fa9e4066Sahrens } 489fa9e4066Sahrens 49088ecc943SGeorge Wilson /* 49188ecc943SGeorge Wilson * We rely on the fact that the max txg for the 49288ecc943SGeorge Wilson * pool will contain the most up-to-date information 49388ecc943SGeorge Wilson * about the valid top-levels in the vdev namespace. 49488ecc943SGeorge Wilson */ 49588ecc943SGeorge Wilson if (best_txg > max_txg) { 49688ecc943SGeorge Wilson (void) nvlist_remove(config, 49788ecc943SGeorge Wilson ZPOOL_CONFIG_VDEV_CHILDREN, 49888ecc943SGeorge Wilson DATA_TYPE_UINT64); 49988ecc943SGeorge Wilson (void) nvlist_remove(config, 50088ecc943SGeorge Wilson ZPOOL_CONFIG_HOLE_ARRAY, 50188ecc943SGeorge Wilson DATA_TYPE_UINT64_ARRAY); 50288ecc943SGeorge Wilson 50388ecc943SGeorge Wilson max_txg = best_txg; 50488ecc943SGeorge Wilson hole_array = NULL; 50588ecc943SGeorge Wilson holes = 0; 50688ecc943SGeorge Wilson max_id = 0; 50788ecc943SGeorge Wilson valid_top_config = B_FALSE; 50888ecc943SGeorge Wilson 50988ecc943SGeorge Wilson if (nvlist_lookup_uint64(tmp, 51088ecc943SGeorge Wilson ZPOOL_CONFIG_VDEV_CHILDREN, &max_id) == 0) { 51188ecc943SGeorge Wilson verify(nvlist_add_uint64(config, 51288ecc943SGeorge Wilson ZPOOL_CONFIG_VDEV_CHILDREN, 51388ecc943SGeorge Wilson max_id) == 0); 51488ecc943SGeorge Wilson valid_top_config = B_TRUE; 51588ecc943SGeorge Wilson } 51688ecc943SGeorge Wilson 51788ecc943SGeorge Wilson if (nvlist_lookup_uint64_array(tmp, 51888ecc943SGeorge Wilson ZPOOL_CONFIG_HOLE_ARRAY, &hole_array, 51988ecc943SGeorge Wilson &holes) == 0) { 52088ecc943SGeorge Wilson verify(nvlist_add_uint64_array(config, 52188ecc943SGeorge Wilson ZPOOL_CONFIG_HOLE_ARRAY, 52288ecc943SGeorge Wilson hole_array, holes) == 0); 52388ecc943SGeorge Wilson } 52488ecc943SGeorge Wilson } 52588ecc943SGeorge Wilson 526fa9e4066Sahrens if (!config_seen) { 527fa9e4066Sahrens /* 528fa9e4066Sahrens * Copy the relevant pieces of data to the pool 529fa9e4066Sahrens * configuration: 530fa9e4066Sahrens * 53199653d4eSeschrock * version 532dfbb9432SGeorge Wilson * pool guid 533dfbb9432SGeorge Wilson * name 5348704186eSDan McDonald * comment (if available) 535dfbb9432SGeorge Wilson * pool state 53695173954Sek * hostid (if available) 53795173954Sek * hostname (if available) 538fa9e4066Sahrens */ 539bda88194SGeorge Wilson uint64_t state, version; 540dfbb9432SGeorge Wilson char *comment = NULL; 541dfbb9432SGeorge Wilson 542dfbb9432SGeorge Wilson version = fnvlist_lookup_uint64(tmp, 543dfbb9432SGeorge Wilson ZPOOL_CONFIG_VERSION); 544dfbb9432SGeorge Wilson fnvlist_add_uint64(config, 545dfbb9432SGeorge Wilson ZPOOL_CONFIG_VERSION, version); 546dfbb9432SGeorge Wilson guid = fnvlist_lookup_uint64(tmp, 547dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_GUID); 548dfbb9432SGeorge Wilson fnvlist_add_uint64(config, 549dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_GUID, guid); 550dfbb9432SGeorge Wilson name = fnvlist_lookup_string(tmp, 551dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_NAME); 552dfbb9432SGeorge Wilson fnvlist_add_string(config, 553dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_NAME, name); 554dfbb9432SGeorge Wilson 5558704186eSDan McDonald if (nvlist_lookup_string(tmp, 556dfbb9432SGeorge Wilson ZPOOL_CONFIG_COMMENT, &comment) == 0) 557dfbb9432SGeorge Wilson fnvlist_add_string(config, 558dfbb9432SGeorge Wilson ZPOOL_CONFIG_COMMENT, comment); 559dfbb9432SGeorge Wilson 560dfbb9432SGeorge Wilson state = fnvlist_lookup_uint64(tmp, 561dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_STATE); 562dfbb9432SGeorge Wilson fnvlist_add_uint64(config, 563dfbb9432SGeorge Wilson ZPOOL_CONFIG_POOL_STATE, state); 5648704186eSDan McDonald 56595173954Sek hostid = 0; 56695173954Sek if (nvlist_lookup_uint64(tmp, 56795173954Sek ZPOOL_CONFIG_HOSTID, &hostid) == 0) { 568dfbb9432SGeorge Wilson fnvlist_add_uint64(config, 569dfbb9432SGeorge Wilson ZPOOL_CONFIG_HOSTID, hostid); 570dfbb9432SGeorge Wilson hostname = fnvlist_lookup_string(tmp, 571dfbb9432SGeorge Wilson ZPOOL_CONFIG_HOSTNAME); 572dfbb9432SGeorge Wilson fnvlist_add_string(config, 573dfbb9432SGeorge Wilson ZPOOL_CONFIG_HOSTNAME, hostname); 57495173954Sek } 575fa9e4066Sahrens 57699653d4eSeschrock config_seen = B_TRUE; 577fa9e4066Sahrens } 578fa9e4066Sahrens 579fa9e4066Sahrens /* 580fa9e4066Sahrens * Add this top-level vdev to the child array. 581fa9e4066Sahrens */ 582fa9e4066Sahrens verify(nvlist_lookup_nvlist(tmp, 583fa9e4066Sahrens ZPOOL_CONFIG_VDEV_TREE, &nvtop) == 0); 584fa9e4066Sahrens verify(nvlist_lookup_uint64(nvtop, ZPOOL_CONFIG_ID, 585fa9e4066Sahrens &id) == 0); 58688ecc943SGeorge Wilson 587fa9e4066Sahrens if (id >= children) { 588fa9e4066Sahrens nvlist_t **newchild; 589fa9e4066Sahrens 59099653d4eSeschrock newchild = zfs_alloc(hdl, (id + 1) * 591fa9e4066Sahrens sizeof (nvlist_t *)); 59299653d4eSeschrock if (newchild == NULL) 59399653d4eSeschrock goto nomem; 594fa9e4066Sahrens 595fa9e4066Sahrens for (c = 0; c < children; c++) 596fa9e4066Sahrens newchild[c] = child[c]; 597fa9e4066Sahrens 598fa9e4066Sahrens free(child); 599fa9e4066Sahrens child = newchild; 600fa9e4066Sahrens children = id + 1; 601fa9e4066Sahrens } 60299653d4eSeschrock if (nvlist_dup(nvtop, &child[id], 0) != 0) 60399653d4eSeschrock goto nomem; 604fa9e4066Sahrens 605fa9e4066Sahrens } 606fa9e4066Sahrens 60788ecc943SGeorge Wilson /* 60888ecc943SGeorge Wilson * If we have information about all the top-levels then 60988ecc943SGeorge Wilson * clean up the nvlist which we've constructed. This 61088ecc943SGeorge Wilson * means removing any extraneous devices that are 61188ecc943SGeorge Wilson * beyond the valid range or adding devices to the end 61288ecc943SGeorge Wilson * of our array which appear to be missing. 61388ecc943SGeorge Wilson */ 61488ecc943SGeorge Wilson if (valid_top_config) { 61588ecc943SGeorge Wilson if (max_id < children) { 61688ecc943SGeorge Wilson for (c = max_id; c < children; c++) 61788ecc943SGeorge Wilson nvlist_free(child[c]); 61888ecc943SGeorge Wilson children = max_id; 61988ecc943SGeorge Wilson } else if (max_id > children) { 62088ecc943SGeorge Wilson nvlist_t **newchild; 62188ecc943SGeorge Wilson 62288ecc943SGeorge Wilson newchild = zfs_alloc(hdl, (max_id) * 62388ecc943SGeorge Wilson sizeof (nvlist_t *)); 62488ecc943SGeorge Wilson if (newchild == NULL) 62588ecc943SGeorge Wilson goto nomem; 62688ecc943SGeorge Wilson 62788ecc943SGeorge Wilson for (c = 0; c < children; c++) 62888ecc943SGeorge Wilson newchild[c] = child[c]; 62988ecc943SGeorge Wilson 63088ecc943SGeorge Wilson free(child); 63188ecc943SGeorge Wilson child = newchild; 63288ecc943SGeorge Wilson children = max_id; 63388ecc943SGeorge Wilson } 63488ecc943SGeorge Wilson } 63588ecc943SGeorge Wilson 636fa9e4066Sahrens verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, 637fa9e4066Sahrens &guid) == 0); 638fa9e4066Sahrens 63988ecc943SGeorge Wilson /* 64088ecc943SGeorge Wilson * The vdev namespace may contain holes as a result of 64188ecc943SGeorge Wilson * device removal. We must add them back into the vdev 64288ecc943SGeorge Wilson * tree before we process any missing devices. 64388ecc943SGeorge Wilson */ 64488ecc943SGeorge Wilson if (holes > 0) { 64588ecc943SGeorge Wilson ASSERT(valid_top_config); 64688ecc943SGeorge Wilson 64788ecc943SGeorge Wilson for (c = 0; c < children; c++) { 64888ecc943SGeorge Wilson nvlist_t *holey; 64988ecc943SGeorge Wilson 65088ecc943SGeorge Wilson if (child[c] != NULL || 65188ecc943SGeorge Wilson !vdev_is_hole(hole_array, holes, c)) 65288ecc943SGeorge Wilson continue; 65388ecc943SGeorge Wilson 65488ecc943SGeorge Wilson if (nvlist_alloc(&holey, NV_UNIQUE_NAME, 65588ecc943SGeorge Wilson 0) != 0) 65688ecc943SGeorge Wilson goto nomem; 65788ecc943SGeorge Wilson 65888ecc943SGeorge Wilson /* 65988ecc943SGeorge Wilson * Holes in the namespace are treated as 66088ecc943SGeorge Wilson * "hole" top-level vdevs and have a 66188ecc943SGeorge Wilson * special flag set on them. 66288ecc943SGeorge Wilson */ 66388ecc943SGeorge Wilson if (nvlist_add_string(holey, 66488ecc943SGeorge Wilson ZPOOL_CONFIG_TYPE, 66588ecc943SGeorge Wilson VDEV_TYPE_HOLE) != 0 || 66688ecc943SGeorge Wilson nvlist_add_uint64(holey, 66788ecc943SGeorge Wilson ZPOOL_CONFIG_ID, c) != 0 || 66888ecc943SGeorge Wilson nvlist_add_uint64(holey, 669*078266a5SMarcel Telka ZPOOL_CONFIG_GUID, 0ULL) != 0) { 670*078266a5SMarcel Telka nvlist_free(holey); 67188ecc943SGeorge Wilson goto nomem; 672*078266a5SMarcel Telka } 67388ecc943SGeorge Wilson child[c] = holey; 67488ecc943SGeorge Wilson } 67588ecc943SGeorge Wilson } 67688ecc943SGeorge Wilson 677fa9e4066Sahrens /* 678fa9e4066Sahrens * Look for any missing top-level vdevs. If this is the case, 679fa9e4066Sahrens * create a faked up 'missing' vdev as a placeholder. We cannot 680fa9e4066Sahrens * simply compress the child array, because the kernel performs 681fa9e4066Sahrens * certain checks to make sure the vdev IDs match their location 682fa9e4066Sahrens * in the configuration. 683fa9e4066Sahrens */ 68488ecc943SGeorge Wilson for (c = 0; c < children; c++) { 685fa9e4066Sahrens if (child[c] == NULL) { 686fa9e4066Sahrens nvlist_t *missing; 68799653d4eSeschrock if (nvlist_alloc(&missing, NV_UNIQUE_NAME, 68899653d4eSeschrock 0) != 0) 68999653d4eSeschrock goto nomem; 69099653d4eSeschrock if (nvlist_add_string(missing, 69199653d4eSeschrock ZPOOL_CONFIG_TYPE, 69299653d4eSeschrock VDEV_TYPE_MISSING) != 0 || 69399653d4eSeschrock nvlist_add_uint64(missing, 69499653d4eSeschrock ZPOOL_CONFIG_ID, c) != 0 || 69599653d4eSeschrock nvlist_add_uint64(missing, 69699653d4eSeschrock ZPOOL_CONFIG_GUID, 0ULL) != 0) { 69799653d4eSeschrock nvlist_free(missing); 69899653d4eSeschrock goto nomem; 69999653d4eSeschrock } 700fa9e4066Sahrens child[c] = missing; 701fa9e4066Sahrens } 70288ecc943SGeorge Wilson } 703fa9e4066Sahrens 704fa9e4066Sahrens /* 705fa9e4066Sahrens * Put all of this pool's top-level vdevs into a root vdev. 706fa9e4066Sahrens */ 70799653d4eSeschrock if (nvlist_alloc(&nvroot, NV_UNIQUE_NAME, 0) != 0) 70899653d4eSeschrock goto nomem; 70999653d4eSeschrock if (nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE, 71099653d4eSeschrock VDEV_TYPE_ROOT) != 0 || 71199653d4eSeschrock nvlist_add_uint64(nvroot, ZPOOL_CONFIG_ID, 0ULL) != 0 || 71299653d4eSeschrock nvlist_add_uint64(nvroot, ZPOOL_CONFIG_GUID, guid) != 0 || 71399653d4eSeschrock nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, 71499653d4eSeschrock child, children) != 0) { 71599653d4eSeschrock nvlist_free(nvroot); 71699653d4eSeschrock goto nomem; 71799653d4eSeschrock } 718fa9e4066Sahrens 719fa9e4066Sahrens for (c = 0; c < children; c++) 720fa9e4066Sahrens nvlist_free(child[c]); 721fa9e4066Sahrens free(child); 72299653d4eSeschrock children = 0; 72399653d4eSeschrock child = NULL; 724fa9e4066Sahrens 725fa9e4066Sahrens /* 726fa9e4066Sahrens * Go through and fix up any paths and/or devids based on our 727fa9e4066Sahrens * known list of vdev GUID -> path mappings. 728fa9e4066Sahrens */ 72999653d4eSeschrock if (fix_paths(nvroot, pl->names) != 0) { 73099653d4eSeschrock nvlist_free(nvroot); 73199653d4eSeschrock goto nomem; 73299653d4eSeschrock } 733fa9e4066Sahrens 734fa9e4066Sahrens /* 735fa9e4066Sahrens * Add the root vdev to this pool's configuration. 736fa9e4066Sahrens */ 73799653d4eSeschrock if (nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 73899653d4eSeschrock nvroot) != 0) { 73999653d4eSeschrock nvlist_free(nvroot); 74099653d4eSeschrock goto nomem; 74199653d4eSeschrock } 742fa9e4066Sahrens nvlist_free(nvroot); 743fa9e4066Sahrens 7443a57275aSck /* 7453a57275aSck * zdb uses this path to report on active pools that were 7463a57275aSck * imported or created using -R. 7473a57275aSck */ 7483a57275aSck if (active_ok) 7493a57275aSck goto add_pool; 7503a57275aSck 751fa9e4066Sahrens /* 752fa9e4066Sahrens * Determine if this pool is currently active, in which case we 753fa9e4066Sahrens * can't actually import it. 754fa9e4066Sahrens */ 755fa9e4066Sahrens verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 756fa9e4066Sahrens &name) == 0); 757fa9e4066Sahrens verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, 758fa9e4066Sahrens &guid) == 0); 759fa9e4066Sahrens 76094de1d4cSeschrock if (pool_active(hdl, name, guid, &isactive) != 0) 76194de1d4cSeschrock goto error; 76294de1d4cSeschrock 7630192a278Seschrock if (isactive) { 764fa9e4066Sahrens nvlist_free(config); 76599653d4eSeschrock config = NULL; 766fa9e4066Sahrens continue; 767fa9e4066Sahrens } 768fa9e4066Sahrens 76988ecc943SGeorge Wilson if ((nvl = refresh_config(hdl, config)) == NULL) { 77088ecc943SGeorge Wilson nvlist_free(config); 77188ecc943SGeorge Wilson config = NULL; 77288ecc943SGeorge Wilson continue; 77388ecc943SGeorge Wilson } 774fa9e4066Sahrens 775fa9e4066Sahrens nvlist_free(config); 7762f8aaab3Seschrock config = nvl; 777fa9e4066Sahrens 77899653d4eSeschrock /* 77999653d4eSeschrock * Go through and update the paths for spares, now that we have 78099653d4eSeschrock * them. 78199653d4eSeschrock */ 78299653d4eSeschrock verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 78399653d4eSeschrock &nvroot) == 0); 78499653d4eSeschrock if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, 78599653d4eSeschrock &spares, &nspares) == 0) { 78699653d4eSeschrock for (i = 0; i < nspares; i++) { 78799653d4eSeschrock if (fix_paths(spares[i], pl->names) != 0) 78899653d4eSeschrock goto nomem; 78999653d4eSeschrock } 79099653d4eSeschrock } 79199653d4eSeschrock 792fa94a07fSbrendan /* 793fa94a07fSbrendan * Update the paths for l2cache devices. 794fa94a07fSbrendan */ 795fa94a07fSbrendan if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, 796fa94a07fSbrendan &l2cache, &nl2cache) == 0) { 797fa94a07fSbrendan for (i = 0; i < nl2cache; i++) { 798fa94a07fSbrendan if (fix_paths(l2cache[i], pl->names) != 0) 799fa94a07fSbrendan goto nomem; 800fa94a07fSbrendan } 801fa94a07fSbrendan } 802fa94a07fSbrendan 80395173954Sek /* 80495173954Sek * Restore the original information read from the actual label. 80595173954Sek */ 80695173954Sek (void) nvlist_remove(config, ZPOOL_CONFIG_HOSTID, 80795173954Sek DATA_TYPE_UINT64); 80895173954Sek (void) nvlist_remove(config, ZPOOL_CONFIG_HOSTNAME, 80995173954Sek DATA_TYPE_STRING); 81095173954Sek if (hostid != 0) { 81195173954Sek verify(nvlist_add_uint64(config, ZPOOL_CONFIG_HOSTID, 81295173954Sek hostid) == 0); 81395173954Sek verify(nvlist_add_string(config, ZPOOL_CONFIG_HOSTNAME, 81495173954Sek hostname) == 0); 81595173954Sek } 81695173954Sek 8173a57275aSck add_pool: 818fa9e4066Sahrens /* 819fa9e4066Sahrens * Add this pool to the list of configs. 820fa9e4066Sahrens */ 821e9dbad6fSeschrock verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 822e9dbad6fSeschrock &name) == 0); 82399653d4eSeschrock if (nvlist_add_nvlist(ret, name, config) != 0) 82499653d4eSeschrock goto nomem; 825fa9e4066Sahrens 82624e697d4Sck found_one = B_TRUE; 827fa9e4066Sahrens nvlist_free(config); 82899653d4eSeschrock config = NULL; 829fa9e4066Sahrens } 830fa9e4066Sahrens 83124e697d4Sck if (!found_one) { 83224e697d4Sck nvlist_free(ret); 83324e697d4Sck ret = NULL; 83424e697d4Sck } 83524e697d4Sck 836fa9e4066Sahrens return (ret); 83799653d4eSeschrock 83899653d4eSeschrock nomem: 83999653d4eSeschrock (void) no_memory(hdl); 84099653d4eSeschrock error: 84194de1d4cSeschrock nvlist_free(config); 84294de1d4cSeschrock nvlist_free(ret); 84399653d4eSeschrock for (c = 0; c < children; c++) 84499653d4eSeschrock nvlist_free(child[c]); 84594de1d4cSeschrock free(child); 84699653d4eSeschrock 84799653d4eSeschrock return (NULL); 848fa9e4066Sahrens } 849fa9e4066Sahrens 850fa9e4066Sahrens /* 851fa9e4066Sahrens * Return the offset of the given label. 852fa9e4066Sahrens */ 853fa9e4066Sahrens static uint64_t 854e7437265Sahrens label_offset(uint64_t size, int l) 855fa9e4066Sahrens { 856e7437265Sahrens ASSERT(P2PHASE_TYPED(size, sizeof (vdev_label_t), uint64_t) == 0); 857fa9e4066Sahrens return (l * sizeof (vdev_label_t) + (l < VDEV_LABELS / 2 ? 858fa9e4066Sahrens 0 : size - VDEV_LABELS * sizeof (vdev_label_t))); 859fa9e4066Sahrens } 860fa9e4066Sahrens 861fa9e4066Sahrens /* 862fa9e4066Sahrens * Given a file descriptor, read the label information and return an nvlist 863fa9e4066Sahrens * describing the configuration, if there is one. 864fa9e4066Sahrens */ 86599653d4eSeschrock int 86699653d4eSeschrock zpool_read_label(int fd, nvlist_t **config) 867fa9e4066Sahrens { 868fa9e4066Sahrens struct stat64 statbuf; 869fa9e4066Sahrens int l; 870fa9e4066Sahrens vdev_label_t *label; 871e7437265Sahrens uint64_t state, txg, size; 872fa9e4066Sahrens 87399653d4eSeschrock *config = NULL; 87499653d4eSeschrock 875fa9e4066Sahrens if (fstat64(fd, &statbuf) == -1) 87699653d4eSeschrock return (0); 877e7437265Sahrens size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t); 878fa9e4066Sahrens 87999653d4eSeschrock if ((label = malloc(sizeof (vdev_label_t))) == NULL) 88099653d4eSeschrock return (-1); 881fa9e4066Sahrens 882fa9e4066Sahrens for (l = 0; l < VDEV_LABELS; l++) { 883c5904d13Seschrock if (pread64(fd, label, sizeof (vdev_label_t), 884e7437265Sahrens label_offset(size, l)) != sizeof (vdev_label_t)) 885fa9e4066Sahrens continue; 886fa9e4066Sahrens 887fa9e4066Sahrens if (nvlist_unpack(label->vl_vdev_phys.vp_nvlist, 88899653d4eSeschrock sizeof (label->vl_vdev_phys.vp_nvlist), config, 0) != 0) 889fa9e4066Sahrens continue; 890fa9e4066Sahrens 89199653d4eSeschrock if (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_STATE, 892fa94a07fSbrendan &state) != 0 || state > POOL_STATE_L2CACHE) { 89399653d4eSeschrock nvlist_free(*config); 894fa9e4066Sahrens continue; 895fa9e4066Sahrens } 896fa9e4066Sahrens 897fa94a07fSbrendan if (state != POOL_STATE_SPARE && state != POOL_STATE_L2CACHE && 89899653d4eSeschrock (nvlist_lookup_uint64(*config, ZPOOL_CONFIG_POOL_TXG, 89999653d4eSeschrock &txg) != 0 || txg == 0)) { 90099653d4eSeschrock nvlist_free(*config); 901fa9e4066Sahrens continue; 902fa9e4066Sahrens } 903fa9e4066Sahrens 904fa9e4066Sahrens free(label); 90599653d4eSeschrock return (0); 906fa9e4066Sahrens } 907fa9e4066Sahrens 908fa9e4066Sahrens free(label); 90999653d4eSeschrock *config = NULL; 91099653d4eSeschrock return (0); 911fa9e4066Sahrens } 912fa9e4066Sahrens 9134f67d755SEric Taylor typedef struct rdsk_node { 9144f67d755SEric Taylor char *rn_name; 9154f67d755SEric Taylor int rn_dfd; 9164f67d755SEric Taylor libzfs_handle_t *rn_hdl; 9174f67d755SEric Taylor nvlist_t *rn_config; 9184f67d755SEric Taylor avl_tree_t *rn_avl; 9194f67d755SEric Taylor avl_node_t rn_node; 9204f67d755SEric Taylor boolean_t rn_nozpool; 9214f67d755SEric Taylor } rdsk_node_t; 9224f67d755SEric Taylor 9234f67d755SEric Taylor static int 9244f67d755SEric Taylor slice_cache_compare(const void *arg1, const void *arg2) 9254f67d755SEric Taylor { 9264f67d755SEric Taylor const char *nm1 = ((rdsk_node_t *)arg1)->rn_name; 9274f67d755SEric Taylor const char *nm2 = ((rdsk_node_t *)arg2)->rn_name; 9284f67d755SEric Taylor char *nm1slice, *nm2slice; 9294f67d755SEric Taylor int rv; 9304f67d755SEric Taylor 9314f67d755SEric Taylor /* 9324f67d755SEric Taylor * slices zero and two are the most likely to provide results, 9334f67d755SEric Taylor * so put those first 9344f67d755SEric Taylor */ 9354f67d755SEric Taylor nm1slice = strstr(nm1, "s0"); 9364f67d755SEric Taylor nm2slice = strstr(nm2, "s0"); 9374f67d755SEric Taylor if (nm1slice && !nm2slice) { 9384f67d755SEric Taylor return (-1); 9394f67d755SEric Taylor } 9404f67d755SEric Taylor if (!nm1slice && nm2slice) { 9414f67d755SEric Taylor return (1); 9424f67d755SEric Taylor } 9434f67d755SEric Taylor nm1slice = strstr(nm1, "s2"); 9444f67d755SEric Taylor nm2slice = strstr(nm2, "s2"); 9454f67d755SEric Taylor if (nm1slice && !nm2slice) { 9464f67d755SEric Taylor return (-1); 9474f67d755SEric Taylor } 9484f67d755SEric Taylor if (!nm1slice && nm2slice) { 9494f67d755SEric Taylor return (1); 9504f67d755SEric Taylor } 9514f67d755SEric Taylor 9524f67d755SEric Taylor rv = strcmp(nm1, nm2); 9534f67d755SEric Taylor if (rv == 0) 9544f67d755SEric Taylor return (0); 9554f67d755SEric Taylor return (rv > 0 ? 1 : -1); 9564f67d755SEric Taylor } 9574f67d755SEric Taylor 9584f67d755SEric Taylor static void 9594f67d755SEric Taylor check_one_slice(avl_tree_t *r, char *diskname, uint_t partno, 9604f67d755SEric Taylor diskaddr_t size, uint_t blksz) 9614f67d755SEric Taylor { 9624f67d755SEric Taylor rdsk_node_t tmpnode; 9634f67d755SEric Taylor rdsk_node_t *node; 9644f67d755SEric Taylor char sname[MAXNAMELEN]; 9654f67d755SEric Taylor 9664f67d755SEric Taylor tmpnode.rn_name = &sname[0]; 9674f67d755SEric Taylor (void) snprintf(tmpnode.rn_name, MAXNAMELEN, "%s%u", 9684f67d755SEric Taylor diskname, partno); 96916d2251eSEric Taylor /* 97016d2251eSEric Taylor * protect against division by zero for disk labels that 97116d2251eSEric Taylor * contain a bogus sector size 97216d2251eSEric Taylor */ 97316d2251eSEric Taylor if (blksz == 0) 97416d2251eSEric Taylor blksz = DEV_BSIZE; 9754f67d755SEric Taylor /* too small to contain a zpool? */ 9764f67d755SEric Taylor if ((size < (SPA_MINDEVSIZE / blksz)) && 9774f67d755SEric Taylor (node = avl_find(r, &tmpnode, NULL))) 9784f67d755SEric Taylor node->rn_nozpool = B_TRUE; 9794f67d755SEric Taylor } 9804f67d755SEric Taylor 9814f67d755SEric Taylor static void 9824f67d755SEric Taylor nozpool_all_slices(avl_tree_t *r, const char *sname) 9834f67d755SEric Taylor { 9844f67d755SEric Taylor char diskname[MAXNAMELEN]; 9854f67d755SEric Taylor char *ptr; 9864f67d755SEric Taylor int i; 9874f67d755SEric Taylor 9884f67d755SEric Taylor (void) strncpy(diskname, sname, MAXNAMELEN); 9894f67d755SEric Taylor if (((ptr = strrchr(diskname, 's')) == NULL) && 9904f67d755SEric Taylor ((ptr = strrchr(diskname, 'p')) == NULL)) 9914f67d755SEric Taylor return; 9924f67d755SEric Taylor ptr[0] = 's'; 9934f67d755SEric Taylor ptr[1] = '\0'; 9944f67d755SEric Taylor for (i = 0; i < NDKMAP; i++) 9954f67d755SEric Taylor check_one_slice(r, diskname, i, 0, 1); 9964f67d755SEric Taylor ptr[0] = 'p'; 9974f67d755SEric Taylor for (i = 0; i <= FD_NUMPART; i++) 9984f67d755SEric Taylor check_one_slice(r, diskname, i, 0, 1); 9994f67d755SEric Taylor } 10004f67d755SEric Taylor 10014f67d755SEric Taylor static void 10024f67d755SEric Taylor check_slices(avl_tree_t *r, int fd, const char *sname) 10034f67d755SEric Taylor { 10044f67d755SEric Taylor struct extvtoc vtoc; 10054f67d755SEric Taylor struct dk_gpt *gpt; 10064f67d755SEric Taylor char diskname[MAXNAMELEN]; 10074f67d755SEric Taylor char *ptr; 10084f67d755SEric Taylor int i; 10094f67d755SEric Taylor 10104f67d755SEric Taylor (void) strncpy(diskname, sname, MAXNAMELEN); 10114f67d755SEric Taylor if ((ptr = strrchr(diskname, 's')) == NULL || !isdigit(ptr[1])) 10124f67d755SEric Taylor return; 10134f67d755SEric Taylor ptr[1] = '\0'; 10144f67d755SEric Taylor 10154f67d755SEric Taylor if (read_extvtoc(fd, &vtoc) >= 0) { 10164f67d755SEric Taylor for (i = 0; i < NDKMAP; i++) 10174f67d755SEric Taylor check_one_slice(r, diskname, i, 10184f67d755SEric Taylor vtoc.v_part[i].p_size, vtoc.v_sectorsz); 10194f67d755SEric Taylor } else if (efi_alloc_and_read(fd, &gpt) >= 0) { 10204f67d755SEric Taylor /* 10214f67d755SEric Taylor * on x86 we'll still have leftover links that point 10224f67d755SEric Taylor * to slices s[9-15], so use NDKMAP instead 10234f67d755SEric Taylor */ 10244f67d755SEric Taylor for (i = 0; i < NDKMAP; i++) 10254f67d755SEric Taylor check_one_slice(r, diskname, i, 10264f67d755SEric Taylor gpt->efi_parts[i].p_size, gpt->efi_lbasize); 10274f67d755SEric Taylor /* nodes p[1-4] are never used with EFI labels */ 10284f67d755SEric Taylor ptr[0] = 'p'; 10294f67d755SEric Taylor for (i = 1; i <= FD_NUMPART; i++) 10304f67d755SEric Taylor check_one_slice(r, diskname, i, 0, 1); 10314f67d755SEric Taylor efi_free(gpt); 10324f67d755SEric Taylor } 10334f67d755SEric Taylor } 10344f67d755SEric Taylor 10354f67d755SEric Taylor static void 10364f67d755SEric Taylor zpool_open_func(void *arg) 10374f67d755SEric Taylor { 10384f67d755SEric Taylor rdsk_node_t *rn = arg; 10394f67d755SEric Taylor struct stat64 statbuf; 10404f67d755SEric Taylor nvlist_t *config; 10414f67d755SEric Taylor int fd; 10424f67d755SEric Taylor 10434f67d755SEric Taylor if (rn->rn_nozpool) 10444f67d755SEric Taylor return; 10454f67d755SEric Taylor if ((fd = openat64(rn->rn_dfd, rn->rn_name, O_RDONLY)) < 0) { 10464f67d755SEric Taylor /* symlink to a device that's no longer there */ 10474f67d755SEric Taylor if (errno == ENOENT) 10484f67d755SEric Taylor nozpool_all_slices(rn->rn_avl, rn->rn_name); 10494f67d755SEric Taylor return; 10504f67d755SEric Taylor } 10514f67d755SEric Taylor /* 10524f67d755SEric Taylor * Ignore failed stats. We only want regular 10534f67d755SEric Taylor * files, character devs and block devs. 10544f67d755SEric Taylor */ 10554f67d755SEric Taylor if (fstat64(fd, &statbuf) != 0 || 10564f67d755SEric Taylor (!S_ISREG(statbuf.st_mode) && 10574f67d755SEric Taylor !S_ISCHR(statbuf.st_mode) && 10584f67d755SEric Taylor !S_ISBLK(statbuf.st_mode))) { 10594f67d755SEric Taylor (void) close(fd); 10604f67d755SEric Taylor return; 10614f67d755SEric Taylor } 10624f67d755SEric Taylor /* this file is too small to hold a zpool */ 10634f67d755SEric Taylor if (S_ISREG(statbuf.st_mode) && 10644f67d755SEric Taylor statbuf.st_size < SPA_MINDEVSIZE) { 10654f67d755SEric Taylor (void) close(fd); 10664f67d755SEric Taylor return; 10674f67d755SEric Taylor } else if (!S_ISREG(statbuf.st_mode)) { 10684f67d755SEric Taylor /* 10694f67d755SEric Taylor * Try to read the disk label first so we don't have to 10704f67d755SEric Taylor * open a bunch of minor nodes that can't have a zpool. 10714f67d755SEric Taylor */ 10724f67d755SEric Taylor check_slices(rn->rn_avl, fd, rn->rn_name); 10734f67d755SEric Taylor } 10744f67d755SEric Taylor 10754f67d755SEric Taylor if ((zpool_read_label(fd, &config)) != 0) { 10764f67d755SEric Taylor (void) close(fd); 10774f67d755SEric Taylor (void) no_memory(rn->rn_hdl); 10784f67d755SEric Taylor return; 10794f67d755SEric Taylor } 10804f67d755SEric Taylor (void) close(fd); 10814f67d755SEric Taylor 10824f67d755SEric Taylor 10834f67d755SEric Taylor rn->rn_config = config; 10844f67d755SEric Taylor if (config != NULL) { 10854f67d755SEric Taylor assert(rn->rn_nozpool == B_FALSE); 10864f67d755SEric Taylor } 10874f67d755SEric Taylor } 10884f67d755SEric Taylor 1089096d22d4SEric Schrock /* 1090096d22d4SEric Schrock * Given a file descriptor, clear (zero) the label information. This function 1091096d22d4SEric Schrock * is currently only used in the appliance stack as part of the ZFS sysevent 1092096d22d4SEric Schrock * module. 1093096d22d4SEric Schrock */ 1094096d22d4SEric Schrock int 1095096d22d4SEric Schrock zpool_clear_label(int fd) 1096096d22d4SEric Schrock { 1097096d22d4SEric Schrock struct stat64 statbuf; 1098096d22d4SEric Schrock int l; 1099096d22d4SEric Schrock vdev_label_t *label; 1100096d22d4SEric Schrock uint64_t size; 1101096d22d4SEric Schrock 1102096d22d4SEric Schrock if (fstat64(fd, &statbuf) == -1) 1103096d22d4SEric Schrock return (0); 1104096d22d4SEric Schrock size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t); 1105096d22d4SEric Schrock 1106096d22d4SEric Schrock if ((label = calloc(sizeof (vdev_label_t), 1)) == NULL) 1107096d22d4SEric Schrock return (-1); 1108096d22d4SEric Schrock 1109096d22d4SEric Schrock for (l = 0; l < VDEV_LABELS; l++) { 1110096d22d4SEric Schrock if (pwrite64(fd, label, sizeof (vdev_label_t), 1111*078266a5SMarcel Telka label_offset(size, l)) != sizeof (vdev_label_t)) { 1112*078266a5SMarcel Telka free(label); 1113096d22d4SEric Schrock return (-1); 1114*078266a5SMarcel Telka } 1115096d22d4SEric Schrock } 1116096d22d4SEric Schrock 1117096d22d4SEric Schrock free(label); 1118096d22d4SEric Schrock return (0); 1119096d22d4SEric Schrock } 1120096d22d4SEric Schrock 1121fa9e4066Sahrens /* 1122fa9e4066Sahrens * Given a list of directories to search, find all pools stored on disk. This 1123fa9e4066Sahrens * includes partial pools which are not available to import. If no args are 1124fa9e4066Sahrens * given (argc is 0), then the default directory (/dev/dsk) is searched. 112524e697d4Sck * poolname or guid (but not both) are provided by the caller when trying 112624e697d4Sck * to import a specific pool. 1127fa9e4066Sahrens */ 112824e697d4Sck static nvlist_t * 1129d41c4376SMark J Musante zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg) 1130fa9e4066Sahrens { 1131d41c4376SMark J Musante int i, dirs = iarg->paths; 1132fa9e4066Sahrens struct dirent64 *dp; 1133fa9e4066Sahrens char path[MAXPATHLEN]; 1134d41c4376SMark J Musante char *end, **dir = iarg->path; 1135842c5645Sjwadams size_t pathleft; 11364f67d755SEric Taylor nvlist_t *ret = NULL; 1137fa9e4066Sahrens static char *default_dir = "/dev/dsk"; 1138fa9e4066Sahrens pool_list_t pools = { 0 }; 113999653d4eSeschrock pool_entry_t *pe, *penext; 114099653d4eSeschrock vdev_entry_t *ve, *venext; 114199653d4eSeschrock config_entry_t *ce, *cenext; 114299653d4eSeschrock name_entry_t *ne, *nenext; 11434f67d755SEric Taylor avl_tree_t slice_cache; 11444f67d755SEric Taylor rdsk_node_t *slice; 11454f67d755SEric Taylor void *cookie; 114699653d4eSeschrock 1147d41c4376SMark J Musante if (dirs == 0) { 1148d41c4376SMark J Musante dirs = 1; 1149d41c4376SMark J Musante dir = &default_dir; 1150fa9e4066Sahrens } 1151fa9e4066Sahrens 1152fa9e4066Sahrens /* 1153fa9e4066Sahrens * Go through and read the label configuration information from every 1154fa9e4066Sahrens * possible device, organizing the information according to pool GUID 1155fa9e4066Sahrens * and toplevel GUID. 1156fa9e4066Sahrens */ 1157d41c4376SMark J Musante for (i = 0; i < dirs; i++) { 11584f67d755SEric Taylor tpool_t *t; 1159842c5645Sjwadams char *rdsk; 1160842c5645Sjwadams int dfd; 1161*078266a5SMarcel Telka boolean_t config_failed = B_FALSE; 1162*078266a5SMarcel Telka DIR *dirp; 1163842c5645Sjwadams 1164842c5645Sjwadams /* use realpath to normalize the path */ 1165d41c4376SMark J Musante if (realpath(dir[i], path) == 0) { 1166ece3d9b3Slling (void) zfs_error_fmt(hdl, EZFS_BADPATH, 1167d41c4376SMark J Musante dgettext(TEXT_DOMAIN, "cannot open '%s'"), dir[i]); 116899653d4eSeschrock goto error; 1169fa9e4066Sahrens } 1170842c5645Sjwadams end = &path[strlen(path)]; 1171842c5645Sjwadams *end++ = '/'; 1172842c5645Sjwadams *end = 0; 1173842c5645Sjwadams pathleft = &path[sizeof (path)] - end; 1174842c5645Sjwadams 1175842c5645Sjwadams /* 1176842c5645Sjwadams * Using raw devices instead of block devices when we're 1177842c5645Sjwadams * reading the labels skips a bunch of slow operations during 1178842c5645Sjwadams * close(2) processing, so we replace /dev/dsk with /dev/rdsk. 1179842c5645Sjwadams */ 1180842c5645Sjwadams if (strcmp(path, "/dev/dsk/") == 0) 1181842c5645Sjwadams rdsk = "/dev/rdsk/"; 1182842c5645Sjwadams else 1183842c5645Sjwadams rdsk = path; 1184fa9e4066Sahrens 1185842c5645Sjwadams if ((dfd = open64(rdsk, O_RDONLY)) < 0 || 1186842c5645Sjwadams (dirp = fdopendir(dfd)) == NULL) { 1187*078266a5SMarcel Telka if (dfd >= 0) 1188*078266a5SMarcel Telka (void) close(dfd); 118999653d4eSeschrock zfs_error_aux(hdl, strerror(errno)); 1190ece3d9b3Slling (void) zfs_error_fmt(hdl, EZFS_BADPATH, 119199653d4eSeschrock dgettext(TEXT_DOMAIN, "cannot open '%s'"), 1192842c5645Sjwadams rdsk); 119399653d4eSeschrock goto error; 1194fa9e4066Sahrens } 1195fa9e4066Sahrens 11964f67d755SEric Taylor avl_create(&slice_cache, slice_cache_compare, 11974f67d755SEric Taylor sizeof (rdsk_node_t), offsetof(rdsk_node_t, rn_node)); 1198fa9e4066Sahrens /* 1199fa9e4066Sahrens * This is not MT-safe, but we have no MT consumers of libzfs 1200fa9e4066Sahrens */ 1201fa9e4066Sahrens while ((dp = readdir64(dirp)) != NULL) { 1202842c5645Sjwadams const char *name = dp->d_name; 1203842c5645Sjwadams if (name[0] == '.' && 1204842c5645Sjwadams (name[1] == 0 || (name[1] == '.' && name[2] == 0))) 1205fa9e4066Sahrens continue; 1206fa9e4066Sahrens 12074f67d755SEric Taylor slice = zfs_alloc(hdl, sizeof (rdsk_node_t)); 12084f67d755SEric Taylor slice->rn_name = zfs_strdup(hdl, name); 12094f67d755SEric Taylor slice->rn_avl = &slice_cache; 12104f67d755SEric Taylor slice->rn_dfd = dfd; 12114f67d755SEric Taylor slice->rn_hdl = hdl; 12124f67d755SEric Taylor slice->rn_nozpool = B_FALSE; 12134f67d755SEric Taylor avl_add(&slice_cache, slice); 12144f67d755SEric Taylor } 12154f67d755SEric Taylor /* 12164f67d755SEric Taylor * create a thread pool to do all of this in parallel; 12174f67d755SEric Taylor * rn_nozpool is not protected, so this is racy in that 12184f67d755SEric Taylor * multiple tasks could decide that the same slice can 12194f67d755SEric Taylor * not hold a zpool, which is benign. Also choose 12204f67d755SEric Taylor * double the number of processors; we hold a lot of 12214f67d755SEric Taylor * locks in the kernel, so going beyond this doesn't 12224f67d755SEric Taylor * buy us much. 12234f67d755SEric Taylor */ 12244f67d755SEric Taylor t = tpool_create(1, 2 * sysconf(_SC_NPROCESSORS_ONLN), 12254f67d755SEric Taylor 0, NULL); 12264f67d755SEric Taylor for (slice = avl_first(&slice_cache); slice; 12274f67d755SEric Taylor (slice = avl_walk(&slice_cache, slice, 12284f67d755SEric Taylor AVL_AFTER))) 12294f67d755SEric Taylor (void) tpool_dispatch(t, zpool_open_func, slice); 12304f67d755SEric Taylor tpool_wait(t); 12314f67d755SEric Taylor tpool_destroy(t); 12324f67d755SEric Taylor 12334f67d755SEric Taylor cookie = NULL; 12344f67d755SEric Taylor while ((slice = avl_destroy_nodes(&slice_cache, 12354f67d755SEric Taylor &cookie)) != NULL) { 1236*078266a5SMarcel Telka if (slice->rn_config != NULL && !config_failed) { 12374f67d755SEric Taylor nvlist_t *config = slice->rn_config; 123824e697d4Sck boolean_t matched = B_TRUE; 123924e697d4Sck 1240d41c4376SMark J Musante if (iarg->poolname != NULL) { 124124e697d4Sck char *pname; 12427b0e68eaSck 12437b0e68eaSck matched = nvlist_lookup_string(config, 124424e697d4Sck ZPOOL_CONFIG_POOL_NAME, 12457b0e68eaSck &pname) == 0 && 1246d41c4376SMark J Musante strcmp(iarg->poolname, pname) == 0; 1247d41c4376SMark J Musante } else if (iarg->guid != 0) { 124824e697d4Sck uint64_t this_guid; 1249913f2d80Sck 1250913f2d80Sck matched = nvlist_lookup_uint64(config, 125124e697d4Sck ZPOOL_CONFIG_POOL_GUID, 1252913f2d80Sck &this_guid) == 0 && 1253d41c4376SMark J Musante iarg->guid == this_guid; 125424e697d4Sck } 125524e697d4Sck if (!matched) { 125624e697d4Sck nvlist_free(config); 1257*078266a5SMarcel Telka } else { 1258*078266a5SMarcel Telka /* 1259*078266a5SMarcel Telka * use the non-raw path for the config 1260*078266a5SMarcel Telka */ 1261*078266a5SMarcel Telka (void) strlcpy(end, slice->rn_name, 1262*078266a5SMarcel Telka pathleft); 1263*078266a5SMarcel Telka if (add_config(hdl, &pools, path, 1264*078266a5SMarcel Telka config) != 0) 1265*078266a5SMarcel Telka config_failed = B_TRUE; 126624e697d4Sck } 1267842c5645Sjwadams } 12684f67d755SEric Taylor free(slice->rn_name); 12694f67d755SEric Taylor free(slice); 1270fa9e4066Sahrens } 12714f67d755SEric Taylor avl_destroy(&slice_cache); 1272ccae0b50Seschrock 1273ccae0b50Seschrock (void) closedir(dirp); 1274*078266a5SMarcel Telka 1275*078266a5SMarcel Telka if (config_failed) 1276*078266a5SMarcel Telka goto error; 1277fa9e4066Sahrens } 1278fa9e4066Sahrens 1279d41c4376SMark J Musante ret = get_configs(hdl, &pools, iarg->can_be_active); 128099653d4eSeschrock 128199653d4eSeschrock error: 128299653d4eSeschrock for (pe = pools.pools; pe != NULL; pe = penext) { 128399653d4eSeschrock penext = pe->pe_next; 128499653d4eSeschrock for (ve = pe->pe_vdevs; ve != NULL; ve = venext) { 128599653d4eSeschrock venext = ve->ve_next; 128699653d4eSeschrock for (ce = ve->ve_configs; ce != NULL; ce = cenext) { 128799653d4eSeschrock cenext = ce->ce_next; 128899653d4eSeschrock if (ce->ce_config) 128999653d4eSeschrock nvlist_free(ce->ce_config); 129099653d4eSeschrock free(ce); 129199653d4eSeschrock } 129299653d4eSeschrock free(ve); 129399653d4eSeschrock } 129499653d4eSeschrock free(pe); 129599653d4eSeschrock } 129699653d4eSeschrock 129799653d4eSeschrock for (ne = pools.names; ne != NULL; ne = nenext) { 129899653d4eSeschrock nenext = ne->ne_next; 1299*078266a5SMarcel Telka free(ne->ne_name); 130099653d4eSeschrock free(ne); 130199653d4eSeschrock } 130299653d4eSeschrock 1303fa9e4066Sahrens return (ret); 1304fa9e4066Sahrens } 1305fa9e4066Sahrens 130624e697d4Sck nvlist_t * 130724e697d4Sck zpool_find_import(libzfs_handle_t *hdl, int argc, char **argv) 130824e697d4Sck { 1309d41c4376SMark J Musante importargs_t iarg = { 0 }; 131024e697d4Sck 1311d41c4376SMark J Musante iarg.paths = argc; 1312d41c4376SMark J Musante iarg.path = argv; 131324e697d4Sck 1314d41c4376SMark J Musante return (zpool_find_import_impl(hdl, &iarg)); 131524e697d4Sck } 131624e697d4Sck 13172f8aaab3Seschrock /* 13182f8aaab3Seschrock * Given a cache file, return the contents as a list of importable pools. 131924e697d4Sck * poolname or guid (but not both) are provided by the caller when trying 132024e697d4Sck * to import a specific pool. 13212f8aaab3Seschrock */ 13222f8aaab3Seschrock nvlist_t * 13233a57275aSck zpool_find_import_cached(libzfs_handle_t *hdl, const char *cachefile, 1324e829d913Sck char *poolname, uint64_t guid) 13252f8aaab3Seschrock { 13262f8aaab3Seschrock char *buf; 13272f8aaab3Seschrock int fd; 13282f8aaab3Seschrock struct stat64 statbuf; 13292f8aaab3Seschrock nvlist_t *raw, *src, *dst; 13302f8aaab3Seschrock nvlist_t *pools; 13312f8aaab3Seschrock nvpair_t *elem; 13322f8aaab3Seschrock char *name; 133324e697d4Sck uint64_t this_guid; 13342f8aaab3Seschrock boolean_t active; 13352f8aaab3Seschrock 133624e697d4Sck verify(poolname == NULL || guid == 0); 133724e697d4Sck 13382f8aaab3Seschrock if ((fd = open(cachefile, O_RDONLY)) < 0) { 13392f8aaab3Seschrock zfs_error_aux(hdl, "%s", strerror(errno)); 13402f8aaab3Seschrock (void) zfs_error(hdl, EZFS_BADCACHE, 13412f8aaab3Seschrock dgettext(TEXT_DOMAIN, "failed to open cache file")); 13422f8aaab3Seschrock return (NULL); 13432f8aaab3Seschrock } 13442f8aaab3Seschrock 13452f8aaab3Seschrock if (fstat64(fd, &statbuf) != 0) { 13462f8aaab3Seschrock zfs_error_aux(hdl, "%s", strerror(errno)); 13472f8aaab3Seschrock (void) close(fd); 13482f8aaab3Seschrock (void) zfs_error(hdl, EZFS_BADCACHE, 13492f8aaab3Seschrock dgettext(TEXT_DOMAIN, "failed to get size of cache file")); 13502f8aaab3Seschrock return (NULL); 13512f8aaab3Seschrock } 13522f8aaab3Seschrock 13532f8aaab3Seschrock if ((buf = zfs_alloc(hdl, statbuf.st_size)) == NULL) { 13542f8aaab3Seschrock (void) close(fd); 13552f8aaab3Seschrock return (NULL); 13562f8aaab3Seschrock } 13572f8aaab3Seschrock 13582f8aaab3Seschrock if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 13592f8aaab3Seschrock (void) close(fd); 13602f8aaab3Seschrock free(buf); 13612f8aaab3Seschrock (void) zfs_error(hdl, EZFS_BADCACHE, 13622f8aaab3Seschrock dgettext(TEXT_DOMAIN, 13632f8aaab3Seschrock "failed to read cache file contents")); 13642f8aaab3Seschrock return (NULL); 13652f8aaab3Seschrock } 13662f8aaab3Seschrock 13672f8aaab3Seschrock (void) close(fd); 13682f8aaab3Seschrock 13692f8aaab3Seschrock if (nvlist_unpack(buf, statbuf.st_size, &raw, 0) != 0) { 13702f8aaab3Seschrock free(buf); 13712f8aaab3Seschrock (void) zfs_error(hdl, EZFS_BADCACHE, 13722f8aaab3Seschrock dgettext(TEXT_DOMAIN, 13732f8aaab3Seschrock "invalid or corrupt cache file contents")); 13742f8aaab3Seschrock return (NULL); 13752f8aaab3Seschrock } 13762f8aaab3Seschrock 13772f8aaab3Seschrock free(buf); 13782f8aaab3Seschrock 13792f8aaab3Seschrock /* 13802f8aaab3Seschrock * Go through and get the current state of the pools and refresh their 13812f8aaab3Seschrock * state. 13822f8aaab3Seschrock */ 13832f8aaab3Seschrock if (nvlist_alloc(&pools, 0, 0) != 0) { 13842f8aaab3Seschrock (void) no_memory(hdl); 13852f8aaab3Seschrock nvlist_free(raw); 13862f8aaab3Seschrock return (NULL); 13872f8aaab3Seschrock } 13882f8aaab3Seschrock 13892f8aaab3Seschrock elem = NULL; 13902f8aaab3Seschrock while ((elem = nvlist_next_nvpair(raw, elem)) != NULL) { 1391b18d6b0eSMatthew Ahrens src = fnvpair_value_nvlist(elem); 13922f8aaab3Seschrock 1393b18d6b0eSMatthew Ahrens name = fnvlist_lookup_string(src, ZPOOL_CONFIG_POOL_NAME); 139424e697d4Sck if (poolname != NULL && strcmp(poolname, name) != 0) 139524e697d4Sck continue; 139624e697d4Sck 1397b18d6b0eSMatthew Ahrens this_guid = fnvlist_lookup_uint64(src, ZPOOL_CONFIG_POOL_GUID); 1398b18d6b0eSMatthew Ahrens if (guid != 0 && guid != this_guid) 1399b18d6b0eSMatthew Ahrens continue; 14002f8aaab3Seschrock 1401e829d913Sck if (pool_active(hdl, name, this_guid, &active) != 0) { 1402e829d913Sck nvlist_free(raw); 1403e829d913Sck nvlist_free(pools); 1404e829d913Sck return (NULL); 1405e829d913Sck } 14062f8aaab3Seschrock 1407e829d913Sck if (active) 1408e829d913Sck continue; 14092f8aaab3Seschrock 1410e829d913Sck if ((dst = refresh_config(hdl, src)) == NULL) { 1411e829d913Sck nvlist_free(raw); 1412e829d913Sck nvlist_free(pools); 1413e829d913Sck return (NULL); 1414e829d913Sck } 14152f8aaab3Seschrock 1416e829d913Sck if (nvlist_add_nvlist(pools, nvpair_name(elem), dst) != 0) { 1417e829d913Sck (void) no_memory(hdl); 14182f8aaab3Seschrock nvlist_free(dst); 1419e829d913Sck nvlist_free(raw); 1420e829d913Sck nvlist_free(pools); 1421e829d913Sck return (NULL); 14222f8aaab3Seschrock } 1423e829d913Sck nvlist_free(dst); 14242f8aaab3Seschrock } 14252f8aaab3Seschrock 14262f8aaab3Seschrock nvlist_free(raw); 14272f8aaab3Seschrock return (pools); 14282f8aaab3Seschrock } 14292f8aaab3Seschrock 1430d41c4376SMark J Musante static int 1431d41c4376SMark J Musante name_or_guid_exists(zpool_handle_t *zhp, void *data) 1432d41c4376SMark J Musante { 1433d41c4376SMark J Musante importargs_t *import = data; 1434d41c4376SMark J Musante int found = 0; 1435d41c4376SMark J Musante 1436d41c4376SMark J Musante if (import->poolname != NULL) { 1437d41c4376SMark J Musante char *pool_name; 1438d41c4376SMark J Musante 1439d41c4376SMark J Musante verify(nvlist_lookup_string(zhp->zpool_config, 1440d41c4376SMark J Musante ZPOOL_CONFIG_POOL_NAME, &pool_name) == 0); 1441d41c4376SMark J Musante if (strcmp(pool_name, import->poolname) == 0) 1442d41c4376SMark J Musante found = 1; 1443d41c4376SMark J Musante } else { 1444d41c4376SMark J Musante uint64_t pool_guid; 1445d41c4376SMark J Musante 1446d41c4376SMark J Musante verify(nvlist_lookup_uint64(zhp->zpool_config, 1447d41c4376SMark J Musante ZPOOL_CONFIG_POOL_GUID, &pool_guid) == 0); 1448d41c4376SMark J Musante if (pool_guid == import->guid) 1449d41c4376SMark J Musante found = 1; 1450d41c4376SMark J Musante } 1451d41c4376SMark J Musante 1452d41c4376SMark J Musante zpool_close(zhp); 1453d41c4376SMark J Musante return (found); 1454d41c4376SMark J Musante } 1455d41c4376SMark J Musante 1456d41c4376SMark J Musante nvlist_t * 1457d41c4376SMark J Musante zpool_search_import(libzfs_handle_t *hdl, importargs_t *import) 1458d41c4376SMark J Musante { 1459d41c4376SMark J Musante verify(import->poolname == NULL || import->guid == 0); 1460d41c4376SMark J Musante 1461d41c4376SMark J Musante if (import->unique) 1462d41c4376SMark J Musante import->exists = zpool_iter(hdl, name_or_guid_exists, import); 1463d41c4376SMark J Musante 1464d41c4376SMark J Musante if (import->cachefile != NULL) 1465d41c4376SMark J Musante return (zpool_find_import_cached(hdl, import->cachefile, 1466d41c4376SMark J Musante import->poolname, import->guid)); 1467d41c4376SMark J Musante 1468d41c4376SMark J Musante return (zpool_find_import_impl(hdl, import)); 1469d41c4376SMark J Musante } 14702f8aaab3Seschrock 147199653d4eSeschrock boolean_t 1472fa9e4066Sahrens find_guid(nvlist_t *nv, uint64_t guid) 1473fa9e4066Sahrens { 1474fa9e4066Sahrens uint64_t tmp; 1475fa9e4066Sahrens nvlist_t **child; 1476fa9e4066Sahrens uint_t c, children; 1477fa9e4066Sahrens 1478fa9e4066Sahrens verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &tmp) == 0); 1479fa9e4066Sahrens if (tmp == guid) 148099653d4eSeschrock return (B_TRUE); 1481fa9e4066Sahrens 1482fa9e4066Sahrens if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, 1483fa9e4066Sahrens &child, &children) == 0) { 1484fa9e4066Sahrens for (c = 0; c < children; c++) 1485fa9e4066Sahrens if (find_guid(child[c], guid)) 148699653d4eSeschrock return (B_TRUE); 148799653d4eSeschrock } 148899653d4eSeschrock 148999653d4eSeschrock return (B_FALSE); 149099653d4eSeschrock } 149199653d4eSeschrock 1492fa94a07fSbrendan typedef struct aux_cbdata { 1493fa94a07fSbrendan const char *cb_type; 149499653d4eSeschrock uint64_t cb_guid; 149599653d4eSeschrock zpool_handle_t *cb_zhp; 1496fa94a07fSbrendan } aux_cbdata_t; 149799653d4eSeschrock 149899653d4eSeschrock static int 1499fa94a07fSbrendan find_aux(zpool_handle_t *zhp, void *data) 150099653d4eSeschrock { 1501fa94a07fSbrendan aux_cbdata_t *cbp = data; 1502fa94a07fSbrendan nvlist_t **list; 1503fa94a07fSbrendan uint_t i, count; 150499653d4eSeschrock uint64_t guid; 150599653d4eSeschrock nvlist_t *nvroot; 150699653d4eSeschrock 150799653d4eSeschrock verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE, 150899653d4eSeschrock &nvroot) == 0); 150999653d4eSeschrock 1510fa94a07fSbrendan if (nvlist_lookup_nvlist_array(nvroot, cbp->cb_type, 1511fa94a07fSbrendan &list, &count) == 0) { 1512fa94a07fSbrendan for (i = 0; i < count; i++) { 1513fa94a07fSbrendan verify(nvlist_lookup_uint64(list[i], 151499653d4eSeschrock ZPOOL_CONFIG_GUID, &guid) == 0); 151599653d4eSeschrock if (guid == cbp->cb_guid) { 151699653d4eSeschrock cbp->cb_zhp = zhp; 151799653d4eSeschrock return (1); 151899653d4eSeschrock } 151999653d4eSeschrock } 1520fa9e4066Sahrens } 1521fa9e4066Sahrens 152299653d4eSeschrock zpool_close(zhp); 152399653d4eSeschrock return (0); 1524fa9e4066Sahrens } 1525fa9e4066Sahrens 1526fa9e4066Sahrens /* 152799653d4eSeschrock * Determines if the pool is in use. If so, it returns true and the state of 1528fa9e4066Sahrens * the pool as well as the name of the pool. Both strings are allocated and 1529fa9e4066Sahrens * must be freed by the caller. 1530fa9e4066Sahrens */ 1531fa9e4066Sahrens int 153299653d4eSeschrock zpool_in_use(libzfs_handle_t *hdl, int fd, pool_state_t *state, char **namestr, 153399653d4eSeschrock boolean_t *inuse) 1534fa9e4066Sahrens { 1535fa9e4066Sahrens nvlist_t *config; 1536fa9e4066Sahrens char *name; 153799653d4eSeschrock boolean_t ret; 1538fa9e4066Sahrens uint64_t guid, vdev_guid; 1539fa9e4066Sahrens zpool_handle_t *zhp; 1540fa9e4066Sahrens nvlist_t *pool_config; 154139c23413Seschrock uint64_t stateval, isspare; 1542fa94a07fSbrendan aux_cbdata_t cb = { 0 }; 154394de1d4cSeschrock boolean_t isactive; 154499653d4eSeschrock 154599653d4eSeschrock *inuse = B_FALSE; 1546fa9e4066Sahrens 154799653d4eSeschrock if (zpool_read_label(fd, &config) != 0) { 154899653d4eSeschrock (void) no_memory(hdl); 154999653d4eSeschrock return (-1); 155099653d4eSeschrock } 155199653d4eSeschrock 155299653d4eSeschrock if (config == NULL) 155399653d4eSeschrock return (0); 1554fa9e4066Sahrens 1555fa9e4066Sahrens verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, 155646a2abf2Seschrock &stateval) == 0); 1557fa9e4066Sahrens verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_GUID, 1558fa9e4066Sahrens &vdev_guid) == 0); 1559fa9e4066Sahrens 1560fa94a07fSbrendan if (stateval != POOL_STATE_SPARE && stateval != POOL_STATE_L2CACHE) { 156199653d4eSeschrock verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 156299653d4eSeschrock &name) == 0); 156399653d4eSeschrock verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, 156499653d4eSeschrock &guid) == 0); 156599653d4eSeschrock } 156699653d4eSeschrock 156746a2abf2Seschrock switch (stateval) { 1568fa9e4066Sahrens case POOL_STATE_EXPORTED: 1569f9af39baSGeorge Wilson /* 1570f9af39baSGeorge Wilson * A pool with an exported state may in fact be imported 1571f9af39baSGeorge Wilson * read-only, so check the in-core state to see if it's 1572f9af39baSGeorge Wilson * active and imported read-only. If it is, set 1573f9af39baSGeorge Wilson * its state to active. 1574f9af39baSGeorge Wilson */ 1575f9af39baSGeorge Wilson if (pool_active(hdl, name, guid, &isactive) == 0 && isactive && 1576fb13f48fSJosef 'Jeff' Sipek (zhp = zpool_open_canfail(hdl, name)) != NULL) { 1577fb13f48fSJosef 'Jeff' Sipek if (zpool_get_prop_int(zhp, ZPOOL_PROP_READONLY, NULL)) 1578fb13f48fSJosef 'Jeff' Sipek stateval = POOL_STATE_ACTIVE; 1579fb13f48fSJosef 'Jeff' Sipek 1580fb13f48fSJosef 'Jeff' Sipek /* 1581fb13f48fSJosef 'Jeff' Sipek * All we needed the zpool handle for is the 1582fb13f48fSJosef 'Jeff' Sipek * readonly prop check. 1583fb13f48fSJosef 'Jeff' Sipek */ 1584fb13f48fSJosef 'Jeff' Sipek zpool_close(zhp); 1585fb13f48fSJosef 'Jeff' Sipek } 1586f9af39baSGeorge Wilson 158799653d4eSeschrock ret = B_TRUE; 1588fa9e4066Sahrens break; 1589fa9e4066Sahrens 1590fa9e4066Sahrens case POOL_STATE_ACTIVE: 1591fa9e4066Sahrens /* 1592fa9e4066Sahrens * For an active pool, we have to determine if it's really part 1593eaca9bbdSeschrock * of a currently active pool (in which case the pool will exist 1594eaca9bbdSeschrock * and the guid will be the same), or whether it's part of an 1595eaca9bbdSeschrock * active pool that was disconnected without being explicitly 1596eaca9bbdSeschrock * exported. 1597fa9e4066Sahrens */ 159894de1d4cSeschrock if (pool_active(hdl, name, guid, &isactive) != 0) { 159994de1d4cSeschrock nvlist_free(config); 160094de1d4cSeschrock return (-1); 160194de1d4cSeschrock } 160294de1d4cSeschrock 160394de1d4cSeschrock if (isactive) { 1604fa9e4066Sahrens /* 1605fa9e4066Sahrens * Because the device may have been removed while 1606fa9e4066Sahrens * offlined, we only report it as active if the vdev is 1607fa9e4066Sahrens * still present in the config. Otherwise, pretend like 1608fa9e4066Sahrens * it's not in use. 1609fa9e4066Sahrens */ 161099653d4eSeschrock if ((zhp = zpool_open_canfail(hdl, name)) != NULL && 1611088e9d47Seschrock (pool_config = zpool_get_config(zhp, NULL)) 1612088e9d47Seschrock != NULL) { 1613fa9e4066Sahrens nvlist_t *nvroot; 1614fa9e4066Sahrens 1615fa9e4066Sahrens verify(nvlist_lookup_nvlist(pool_config, 1616fa9e4066Sahrens ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); 161746a2abf2Seschrock ret = find_guid(nvroot, vdev_guid); 1618fa9e4066Sahrens } else { 161999653d4eSeschrock ret = B_FALSE; 1620fa9e4066Sahrens } 162199653d4eSeschrock 162239c23413Seschrock /* 162339c23413Seschrock * If this is an active spare within another pool, we 162439c23413Seschrock * treat it like an unused hot spare. This allows the 162539c23413Seschrock * user to create a pool with a hot spare that currently 162639c23413Seschrock * in use within another pool. Since we return B_TRUE, 162739c23413Seschrock * libdiskmgt will continue to prevent generic consumers 162839c23413Seschrock * from using the device. 162939c23413Seschrock */ 163039c23413Seschrock if (ret && nvlist_lookup_uint64(config, 163139c23413Seschrock ZPOOL_CONFIG_IS_SPARE, &isspare) == 0 && isspare) 163239c23413Seschrock stateval = POOL_STATE_SPARE; 163339c23413Seschrock 163499653d4eSeschrock if (zhp != NULL) 163599653d4eSeschrock zpool_close(zhp); 1636fa9e4066Sahrens } else { 163746a2abf2Seschrock stateval = POOL_STATE_POTENTIALLY_ACTIVE; 163899653d4eSeschrock ret = B_TRUE; 163999653d4eSeschrock } 164099653d4eSeschrock break; 164199653d4eSeschrock 164299653d4eSeschrock case POOL_STATE_SPARE: 164399653d4eSeschrock /* 164499653d4eSeschrock * For a hot spare, it can be either definitively in use, or 164599653d4eSeschrock * potentially active. To determine if it's in use, we iterate 164699653d4eSeschrock * over all pools in the system and search for one with a spare 164799653d4eSeschrock * with a matching guid. 164899653d4eSeschrock * 164999653d4eSeschrock * Due to the shared nature of spares, we don't actually report 165099653d4eSeschrock * the potentially active case as in use. This means the user 165199653d4eSeschrock * can freely create pools on the hot spares of exported pools, 165299653d4eSeschrock * but to do otherwise makes the resulting code complicated, and 165399653d4eSeschrock * we end up having to deal with this case anyway. 165499653d4eSeschrock */ 165599653d4eSeschrock cb.cb_zhp = NULL; 165699653d4eSeschrock cb.cb_guid = vdev_guid; 1657fa94a07fSbrendan cb.cb_type = ZPOOL_CONFIG_SPARES; 1658fa94a07fSbrendan if (zpool_iter(hdl, find_aux, &cb) == 1) { 1659fa94a07fSbrendan name = (char *)zpool_get_name(cb.cb_zhp); 1660*078266a5SMarcel Telka ret = B_TRUE; 1661fa94a07fSbrendan } else { 1662*078266a5SMarcel Telka ret = B_FALSE; 1663fa94a07fSbrendan } 1664fa94a07fSbrendan break; 1665fa94a07fSbrendan 1666fa94a07fSbrendan case POOL_STATE_L2CACHE: 1667fa94a07fSbrendan 1668fa94a07fSbrendan /* 1669fa94a07fSbrendan * Check if any pool is currently using this l2cache device. 1670fa94a07fSbrendan */ 1671fa94a07fSbrendan cb.cb_zhp = NULL; 1672fa94a07fSbrendan cb.cb_guid = vdev_guid; 1673fa94a07fSbrendan cb.cb_type = ZPOOL_CONFIG_L2CACHE; 1674fa94a07fSbrendan if (zpool_iter(hdl, find_aux, &cb) == 1) { 167599653d4eSeschrock name = (char *)zpool_get_name(cb.cb_zhp); 1676*078266a5SMarcel Telka ret = B_TRUE; 167799653d4eSeschrock } else { 1678*078266a5SMarcel Telka ret = B_FALSE; 1679fa9e4066Sahrens } 1680fa9e4066Sahrens break; 1681fa9e4066Sahrens 1682fa9e4066Sahrens default: 168399653d4eSeschrock ret = B_FALSE; 1684fa9e4066Sahrens } 1685fa9e4066Sahrens 168646a2abf2Seschrock 168746a2abf2Seschrock if (ret) { 168899653d4eSeschrock if ((*namestr = zfs_strdup(hdl, name)) == NULL) { 1689c6765aabSeschrock if (cb.cb_zhp) 1690c6765aabSeschrock zpool_close(cb.cb_zhp); 169199653d4eSeschrock nvlist_free(config); 169299653d4eSeschrock return (-1); 169399653d4eSeschrock } 169446a2abf2Seschrock *state = (pool_state_t)stateval; 169546a2abf2Seschrock } 169646a2abf2Seschrock 169799653d4eSeschrock if (cb.cb_zhp) 169899653d4eSeschrock zpool_close(cb.cb_zhp); 169999653d4eSeschrock 1700fa9e4066Sahrens nvlist_free(config); 170199653d4eSeschrock *inuse = ret; 170299653d4eSeschrock return (0); 1703fa9e4066Sahrens } 1704