1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <alloca.h> 28 #include <assert.h> 29 #include <ctype.h> 30 #include <errno.h> 31 #include <devid.h> 32 #include <dirent.h> 33 #include <fcntl.h> 34 #include <libintl.h> 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <strings.h> 38 #include <unistd.h> 39 #include <zone.h> 40 #include <sys/efi_partition.h> 41 #include <sys/vtoc.h> 42 #include <sys/zfs_ioctl.h> 43 #include <sys/zio.h> 44 #include <strings.h> 45 #include <dlfcn.h> 46 47 #include "zfs_namecheck.h" 48 #include "zfs_prop.h" 49 #include "libzfs_impl.h" 50 51 static int read_efi_label(nvlist_t *config, diskaddr_t *sb); 52 53 #if defined(__i386) || defined(__amd64) 54 #define BOOTCMD "installgrub(1M)" 55 #else 56 #define BOOTCMD "installboot(1M)" 57 #endif 58 59 #define DISK_ROOT "/dev/dsk" 60 #define RDISK_ROOT "/dev/rdsk" 61 #define BACKUP_SLICE "s2" 62 63 /* 64 * ==================================================================== 65 * zpool property functions 66 * ==================================================================== 67 */ 68 69 static int 70 zpool_get_all_props(zpool_handle_t *zhp) 71 { 72 zfs_cmd_t zc = { 0 }; 73 libzfs_handle_t *hdl = zhp->zpool_hdl; 74 75 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 76 77 if (zcmd_alloc_dst_nvlist(hdl, &zc, 0) != 0) 78 return (-1); 79 80 while (ioctl(hdl->libzfs_fd, ZFS_IOC_POOL_GET_PROPS, &zc) != 0) { 81 if (errno == ENOMEM) { 82 if (zcmd_expand_dst_nvlist(hdl, &zc) != 0) { 83 zcmd_free_nvlists(&zc); 84 return (-1); 85 } 86 } else { 87 zcmd_free_nvlists(&zc); 88 return (-1); 89 } 90 } 91 92 if (zcmd_read_dst_nvlist(hdl, &zc, &zhp->zpool_props) != 0) { 93 zcmd_free_nvlists(&zc); 94 return (-1); 95 } 96 97 zcmd_free_nvlists(&zc); 98 99 return (0); 100 } 101 102 static int 103 zpool_props_refresh(zpool_handle_t *zhp) 104 { 105 nvlist_t *old_props; 106 107 old_props = zhp->zpool_props; 108 109 if (zpool_get_all_props(zhp) != 0) 110 return (-1); 111 112 nvlist_free(old_props); 113 return (0); 114 } 115 116 static char * 117 zpool_get_prop_string(zpool_handle_t *zhp, zpool_prop_t prop, 118 zprop_source_t *src) 119 { 120 nvlist_t *nv, *nvl; 121 uint64_t ival; 122 char *value; 123 zprop_source_t source; 124 125 nvl = zhp->zpool_props; 126 if (nvlist_lookup_nvlist(nvl, zpool_prop_to_name(prop), &nv) == 0) { 127 verify(nvlist_lookup_uint64(nv, ZPROP_SOURCE, &ival) == 0); 128 source = ival; 129 verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0); 130 } else { 131 source = ZPROP_SRC_DEFAULT; 132 if ((value = (char *)zpool_prop_default_string(prop)) == NULL) 133 value = "-"; 134 } 135 136 if (src) 137 *src = source; 138 139 return (value); 140 } 141 142 uint64_t 143 zpool_get_prop_int(zpool_handle_t *zhp, zpool_prop_t prop, zprop_source_t *src) 144 { 145 nvlist_t *nv, *nvl; 146 uint64_t value; 147 zprop_source_t source; 148 149 if (zhp->zpool_props == NULL && zpool_get_all_props(zhp)) { 150 /* 151 * zpool_get_all_props() has most likely failed because 152 * the pool is faulted, but if all we need is the top level 153 * vdev's guid then get it from the zhp config nvlist. 154 */ 155 if ((prop == ZPOOL_PROP_GUID) && 156 (nvlist_lookup_nvlist(zhp->zpool_config, 157 ZPOOL_CONFIG_VDEV_TREE, &nv) == 0) && 158 (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &value) 159 == 0)) { 160 return (value); 161 } 162 return (zpool_prop_default_numeric(prop)); 163 } 164 165 nvl = zhp->zpool_props; 166 if (nvlist_lookup_nvlist(nvl, zpool_prop_to_name(prop), &nv) == 0) { 167 verify(nvlist_lookup_uint64(nv, ZPROP_SOURCE, &value) == 0); 168 source = value; 169 verify(nvlist_lookup_uint64(nv, ZPROP_VALUE, &value) == 0); 170 } else { 171 source = ZPROP_SRC_DEFAULT; 172 value = zpool_prop_default_numeric(prop); 173 } 174 175 if (src) 176 *src = source; 177 178 return (value); 179 } 180 181 /* 182 * Map VDEV STATE to printed strings. 183 */ 184 char * 185 zpool_state_to_name(vdev_state_t state, vdev_aux_t aux) 186 { 187 switch (state) { 188 case VDEV_STATE_CLOSED: 189 case VDEV_STATE_OFFLINE: 190 return (gettext("OFFLINE")); 191 case VDEV_STATE_REMOVED: 192 return (gettext("REMOVED")); 193 case VDEV_STATE_CANT_OPEN: 194 if (aux == VDEV_AUX_CORRUPT_DATA || aux == VDEV_AUX_BAD_LOG) 195 return (gettext("FAULTED")); 196 else 197 return (gettext("UNAVAIL")); 198 case VDEV_STATE_FAULTED: 199 return (gettext("FAULTED")); 200 case VDEV_STATE_DEGRADED: 201 return (gettext("DEGRADED")); 202 case VDEV_STATE_HEALTHY: 203 return (gettext("ONLINE")); 204 } 205 206 return (gettext("UNKNOWN")); 207 } 208 209 /* 210 * Get a zpool property value for 'prop' and return the value in 211 * a pre-allocated buffer. 212 */ 213 int 214 zpool_get_prop(zpool_handle_t *zhp, zpool_prop_t prop, char *buf, size_t len, 215 zprop_source_t *srctype) 216 { 217 uint64_t intval; 218 const char *strval; 219 zprop_source_t src = ZPROP_SRC_NONE; 220 nvlist_t *nvroot; 221 vdev_stat_t *vs; 222 uint_t vsc; 223 224 if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) { 225 switch (prop) { 226 case ZPOOL_PROP_NAME: 227 (void) strlcpy(buf, zpool_get_name(zhp), len); 228 break; 229 230 case ZPOOL_PROP_HEALTH: 231 (void) strlcpy(buf, "FAULTED", len); 232 break; 233 234 case ZPOOL_PROP_GUID: 235 intval = zpool_get_prop_int(zhp, prop, &src); 236 (void) snprintf(buf, len, "%llu", intval); 237 break; 238 239 case ZPOOL_PROP_ALTROOT: 240 case ZPOOL_PROP_CACHEFILE: 241 if (zhp->zpool_props != NULL || 242 zpool_get_all_props(zhp) == 0) { 243 (void) strlcpy(buf, 244 zpool_get_prop_string(zhp, prop, &src), 245 len); 246 if (srctype != NULL) 247 *srctype = src; 248 return (0); 249 } 250 /* FALLTHROUGH */ 251 default: 252 (void) strlcpy(buf, "-", len); 253 break; 254 } 255 256 if (srctype != NULL) 257 *srctype = src; 258 return (0); 259 } 260 261 if (zhp->zpool_props == NULL && zpool_get_all_props(zhp) && 262 prop != ZPOOL_PROP_NAME) 263 return (-1); 264 265 switch (zpool_prop_get_type(prop)) { 266 case PROP_TYPE_STRING: 267 (void) strlcpy(buf, zpool_get_prop_string(zhp, prop, &src), 268 len); 269 break; 270 271 case PROP_TYPE_NUMBER: 272 intval = zpool_get_prop_int(zhp, prop, &src); 273 274 switch (prop) { 275 case ZPOOL_PROP_SIZE: 276 case ZPOOL_PROP_USED: 277 case ZPOOL_PROP_AVAILABLE: 278 (void) zfs_nicenum(intval, buf, len); 279 break; 280 281 case ZPOOL_PROP_CAPACITY: 282 (void) snprintf(buf, len, "%llu%%", 283 (u_longlong_t)intval); 284 break; 285 286 case ZPOOL_PROP_HEALTH: 287 verify(nvlist_lookup_nvlist(zpool_get_config(zhp, NULL), 288 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); 289 verify(nvlist_lookup_uint64_array(nvroot, 290 ZPOOL_CONFIG_STATS, (uint64_t **)&vs, &vsc) == 0); 291 292 (void) strlcpy(buf, zpool_state_to_name(intval, 293 vs->vs_aux), len); 294 break; 295 default: 296 (void) snprintf(buf, len, "%llu", intval); 297 } 298 break; 299 300 case PROP_TYPE_INDEX: 301 intval = zpool_get_prop_int(zhp, prop, &src); 302 if (zpool_prop_index_to_string(prop, intval, &strval) 303 != 0) 304 return (-1); 305 (void) strlcpy(buf, strval, len); 306 break; 307 308 default: 309 abort(); 310 } 311 312 if (srctype) 313 *srctype = src; 314 315 return (0); 316 } 317 318 /* 319 * Check if the bootfs name has the same pool name as it is set to. 320 * Assuming bootfs is a valid dataset name. 321 */ 322 static boolean_t 323 bootfs_name_valid(const char *pool, char *bootfs) 324 { 325 int len = strlen(pool); 326 327 if (!zfs_name_valid(bootfs, ZFS_TYPE_FILESYSTEM|ZFS_TYPE_SNAPSHOT)) 328 return (B_FALSE); 329 330 if (strncmp(pool, bootfs, len) == 0 && 331 (bootfs[len] == '/' || bootfs[len] == '\0')) 332 return (B_TRUE); 333 334 return (B_FALSE); 335 } 336 337 /* 338 * Inspect the configuration to determine if any of the devices contain 339 * an EFI label. 340 */ 341 static boolean_t 342 pool_uses_efi(nvlist_t *config) 343 { 344 nvlist_t **child; 345 uint_t c, children; 346 347 if (nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_CHILDREN, 348 &child, &children) != 0) 349 return (read_efi_label(config, NULL) >= 0); 350 351 for (c = 0; c < children; c++) { 352 if (pool_uses_efi(child[c])) 353 return (B_TRUE); 354 } 355 return (B_FALSE); 356 } 357 358 static boolean_t 359 pool_is_bootable(zpool_handle_t *zhp) 360 { 361 char bootfs[ZPOOL_MAXNAMELEN]; 362 363 return (zpool_get_prop(zhp, ZPOOL_PROP_BOOTFS, bootfs, 364 sizeof (bootfs), NULL) == 0 && strncmp(bootfs, "-", 365 sizeof (bootfs)) != 0); 366 } 367 368 369 /* 370 * Given an nvlist of zpool properties to be set, validate that they are 371 * correct, and parse any numeric properties (index, boolean, etc) if they are 372 * specified as strings. 373 */ 374 static nvlist_t * 375 zpool_valid_proplist(libzfs_handle_t *hdl, const char *poolname, 376 nvlist_t *props, uint64_t version, boolean_t create_or_import, char *errbuf) 377 { 378 nvpair_t *elem; 379 nvlist_t *retprops; 380 zpool_prop_t prop; 381 char *strval; 382 uint64_t intval; 383 char *slash; 384 struct stat64 statbuf; 385 zpool_handle_t *zhp; 386 nvlist_t *nvroot; 387 388 if (nvlist_alloc(&retprops, NV_UNIQUE_NAME, 0) != 0) { 389 (void) no_memory(hdl); 390 return (NULL); 391 } 392 393 elem = NULL; 394 while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 395 const char *propname = nvpair_name(elem); 396 397 /* 398 * Make sure this property is valid and applies to this type. 399 */ 400 if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL) { 401 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 402 "invalid property '%s'"), propname); 403 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 404 goto error; 405 } 406 407 if (zpool_prop_readonly(prop)) { 408 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "'%s' " 409 "is readonly"), propname); 410 (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 411 goto error; 412 } 413 414 if (zprop_parse_value(hdl, elem, prop, ZFS_TYPE_POOL, retprops, 415 &strval, &intval, errbuf) != 0) 416 goto error; 417 418 /* 419 * Perform additional checking for specific properties. 420 */ 421 switch (prop) { 422 case ZPOOL_PROP_VERSION: 423 if (intval < version || intval > SPA_VERSION) { 424 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 425 "property '%s' number %d is invalid."), 426 propname, intval); 427 (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 428 goto error; 429 } 430 break; 431 432 case ZPOOL_PROP_BOOTFS: 433 if (create_or_import) { 434 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 435 "property '%s' cannot be set at creation " 436 "or import time"), propname); 437 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 438 goto error; 439 } 440 441 if (version < SPA_VERSION_BOOTFS) { 442 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 443 "pool must be upgraded to support " 444 "'%s' property"), propname); 445 (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 446 goto error; 447 } 448 449 /* 450 * bootfs property value has to be a dataset name and 451 * the dataset has to be in the same pool as it sets to. 452 */ 453 if (strval[0] != '\0' && !bootfs_name_valid(poolname, 454 strval)) { 455 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "'%s' " 456 "is an invalid name"), strval); 457 (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 458 goto error; 459 } 460 461 if ((zhp = zpool_open_canfail(hdl, poolname)) == NULL) { 462 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 463 "could not open pool '%s'"), poolname); 464 (void) zfs_error(hdl, EZFS_OPENFAILED, errbuf); 465 goto error; 466 } 467 verify(nvlist_lookup_nvlist(zpool_get_config(zhp, NULL), 468 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); 469 470 /* 471 * bootfs property cannot be set on a disk which has 472 * been EFI labeled. 473 */ 474 if (pool_uses_efi(nvroot)) { 475 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 476 "property '%s' not supported on " 477 "EFI labeled devices"), propname); 478 (void) zfs_error(hdl, EZFS_POOL_NOTSUP, errbuf); 479 zpool_close(zhp); 480 goto error; 481 } 482 zpool_close(zhp); 483 break; 484 485 case ZPOOL_PROP_ALTROOT: 486 if (!create_or_import) { 487 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 488 "property '%s' can only be set during pool " 489 "creation or import"), propname); 490 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 491 goto error; 492 } 493 494 if (strval[0] != '/') { 495 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 496 "bad alternate root '%s'"), strval); 497 (void) zfs_error(hdl, EZFS_BADPATH, errbuf); 498 goto error; 499 } 500 break; 501 502 case ZPOOL_PROP_CACHEFILE: 503 if (strval[0] == '\0') 504 break; 505 506 if (strcmp(strval, "none") == 0) 507 break; 508 509 if (strval[0] != '/') { 510 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 511 "property '%s' must be empty, an " 512 "absolute path, or 'none'"), propname); 513 (void) zfs_error(hdl, EZFS_BADPATH, errbuf); 514 goto error; 515 } 516 517 slash = strrchr(strval, '/'); 518 519 if (slash[1] == '\0' || strcmp(slash, "/.") == 0 || 520 strcmp(slash, "/..") == 0) { 521 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 522 "'%s' is not a valid file"), strval); 523 (void) zfs_error(hdl, EZFS_BADPATH, errbuf); 524 goto error; 525 } 526 527 *slash = '\0'; 528 529 if (strval[0] != '\0' && 530 (stat64(strval, &statbuf) != 0 || 531 !S_ISDIR(statbuf.st_mode))) { 532 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 533 "'%s' is not a valid directory"), 534 strval); 535 (void) zfs_error(hdl, EZFS_BADPATH, errbuf); 536 goto error; 537 } 538 539 *slash = '/'; 540 break; 541 } 542 } 543 544 return (retprops); 545 error: 546 nvlist_free(retprops); 547 return (NULL); 548 } 549 550 /* 551 * Set zpool property : propname=propval. 552 */ 553 int 554 zpool_set_prop(zpool_handle_t *zhp, const char *propname, const char *propval) 555 { 556 zfs_cmd_t zc = { 0 }; 557 int ret = -1; 558 char errbuf[1024]; 559 nvlist_t *nvl = NULL; 560 nvlist_t *realprops; 561 uint64_t version; 562 563 (void) snprintf(errbuf, sizeof (errbuf), 564 dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 565 zhp->zpool_name); 566 567 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 568 return (no_memory(zhp->zpool_hdl)); 569 570 if (nvlist_add_string(nvl, propname, propval) != 0) { 571 nvlist_free(nvl); 572 return (no_memory(zhp->zpool_hdl)); 573 } 574 575 version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL); 576 if ((realprops = zpool_valid_proplist(zhp->zpool_hdl, 577 zhp->zpool_name, nvl, version, B_FALSE, errbuf)) == NULL) { 578 nvlist_free(nvl); 579 return (-1); 580 } 581 582 nvlist_free(nvl); 583 nvl = realprops; 584 585 /* 586 * Execute the corresponding ioctl() to set this property. 587 */ 588 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 589 590 if (zcmd_write_src_nvlist(zhp->zpool_hdl, &zc, nvl) != 0) { 591 nvlist_free(nvl); 592 return (-1); 593 } 594 595 ret = zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_SET_PROPS, &zc); 596 597 zcmd_free_nvlists(&zc); 598 nvlist_free(nvl); 599 600 if (ret) 601 (void) zpool_standard_error(zhp->zpool_hdl, errno, errbuf); 602 else 603 (void) zpool_props_refresh(zhp); 604 605 return (ret); 606 } 607 608 int 609 zpool_expand_proplist(zpool_handle_t *zhp, zprop_list_t **plp) 610 { 611 libzfs_handle_t *hdl = zhp->zpool_hdl; 612 zprop_list_t *entry; 613 char buf[ZFS_MAXPROPLEN]; 614 615 if (zprop_expand_list(hdl, plp, ZFS_TYPE_POOL) != 0) 616 return (-1); 617 618 for (entry = *plp; entry != NULL; entry = entry->pl_next) { 619 620 if (entry->pl_fixed) 621 continue; 622 623 if (entry->pl_prop != ZPROP_INVAL && 624 zpool_get_prop(zhp, entry->pl_prop, buf, sizeof (buf), 625 NULL) == 0) { 626 if (strlen(buf) > entry->pl_width) 627 entry->pl_width = strlen(buf); 628 } 629 } 630 631 return (0); 632 } 633 634 635 /* 636 * Don't start the slice at the default block of 34; many storage 637 * devices will use a stripe width of 128k, so start there instead. 638 */ 639 #define NEW_START_BLOCK 256 640 641 /* 642 * Validate the given pool name, optionally putting an extended error message in 643 * 'buf'. 644 */ 645 boolean_t 646 zpool_name_valid(libzfs_handle_t *hdl, boolean_t isopen, const char *pool) 647 { 648 namecheck_err_t why; 649 char what; 650 int ret; 651 652 ret = pool_namecheck(pool, &why, &what); 653 654 /* 655 * The rules for reserved pool names were extended at a later point. 656 * But we need to support users with existing pools that may now be 657 * invalid. So we only check for this expanded set of names during a 658 * create (or import), and only in userland. 659 */ 660 if (ret == 0 && !isopen && 661 (strncmp(pool, "mirror", 6) == 0 || 662 strncmp(pool, "raidz", 5) == 0 || 663 strncmp(pool, "spare", 5) == 0 || 664 strcmp(pool, "log") == 0)) { 665 if (hdl != NULL) 666 zfs_error_aux(hdl, 667 dgettext(TEXT_DOMAIN, "name is reserved")); 668 return (B_FALSE); 669 } 670 671 672 if (ret != 0) { 673 if (hdl != NULL) { 674 switch (why) { 675 case NAME_ERR_TOOLONG: 676 zfs_error_aux(hdl, 677 dgettext(TEXT_DOMAIN, "name is too long")); 678 break; 679 680 case NAME_ERR_INVALCHAR: 681 zfs_error_aux(hdl, 682 dgettext(TEXT_DOMAIN, "invalid character " 683 "'%c' in pool name"), what); 684 break; 685 686 case NAME_ERR_NOLETTER: 687 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 688 "name must begin with a letter")); 689 break; 690 691 case NAME_ERR_RESERVED: 692 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 693 "name is reserved")); 694 break; 695 696 case NAME_ERR_DISKLIKE: 697 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 698 "pool name is reserved")); 699 break; 700 701 case NAME_ERR_LEADING_SLASH: 702 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 703 "leading slash in name")); 704 break; 705 706 case NAME_ERR_EMPTY_COMPONENT: 707 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 708 "empty component in name")); 709 break; 710 711 case NAME_ERR_TRAILING_SLASH: 712 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 713 "trailing slash in name")); 714 break; 715 716 case NAME_ERR_MULTIPLE_AT: 717 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 718 "multiple '@' delimiters in name")); 719 break; 720 721 } 722 } 723 return (B_FALSE); 724 } 725 726 return (B_TRUE); 727 } 728 729 /* 730 * Open a handle to the given pool, even if the pool is currently in the FAULTED 731 * state. 732 */ 733 zpool_handle_t * 734 zpool_open_canfail(libzfs_handle_t *hdl, const char *pool) 735 { 736 zpool_handle_t *zhp; 737 boolean_t missing; 738 739 /* 740 * Make sure the pool name is valid. 741 */ 742 if (!zpool_name_valid(hdl, B_TRUE, pool)) { 743 (void) zfs_error_fmt(hdl, EZFS_INVALIDNAME, 744 dgettext(TEXT_DOMAIN, "cannot open '%s'"), 745 pool); 746 return (NULL); 747 } 748 749 if ((zhp = zfs_alloc(hdl, sizeof (zpool_handle_t))) == NULL) 750 return (NULL); 751 752 zhp->zpool_hdl = hdl; 753 (void) strlcpy(zhp->zpool_name, pool, sizeof (zhp->zpool_name)); 754 755 if (zpool_refresh_stats(zhp, &missing) != 0) { 756 zpool_close(zhp); 757 return (NULL); 758 } 759 760 if (missing) { 761 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "no such pool")); 762 (void) zfs_error_fmt(hdl, EZFS_NOENT, 763 dgettext(TEXT_DOMAIN, "cannot open '%s'"), pool); 764 zpool_close(zhp); 765 return (NULL); 766 } 767 768 return (zhp); 769 } 770 771 /* 772 * Like the above, but silent on error. Used when iterating over pools (because 773 * the configuration cache may be out of date). 774 */ 775 int 776 zpool_open_silent(libzfs_handle_t *hdl, const char *pool, zpool_handle_t **ret) 777 { 778 zpool_handle_t *zhp; 779 boolean_t missing; 780 781 if ((zhp = zfs_alloc(hdl, sizeof (zpool_handle_t))) == NULL) 782 return (-1); 783 784 zhp->zpool_hdl = hdl; 785 (void) strlcpy(zhp->zpool_name, pool, sizeof (zhp->zpool_name)); 786 787 if (zpool_refresh_stats(zhp, &missing) != 0) { 788 zpool_close(zhp); 789 return (-1); 790 } 791 792 if (missing) { 793 zpool_close(zhp); 794 *ret = NULL; 795 return (0); 796 } 797 798 *ret = zhp; 799 return (0); 800 } 801 802 /* 803 * Similar to zpool_open_canfail(), but refuses to open pools in the faulted 804 * state. 805 */ 806 zpool_handle_t * 807 zpool_open(libzfs_handle_t *hdl, const char *pool) 808 { 809 zpool_handle_t *zhp; 810 811 if ((zhp = zpool_open_canfail(hdl, pool)) == NULL) 812 return (NULL); 813 814 if (zhp->zpool_state == POOL_STATE_UNAVAIL) { 815 (void) zfs_error_fmt(hdl, EZFS_POOLUNAVAIL, 816 dgettext(TEXT_DOMAIN, "cannot open '%s'"), zhp->zpool_name); 817 zpool_close(zhp); 818 return (NULL); 819 } 820 821 return (zhp); 822 } 823 824 /* 825 * Close the handle. Simply frees the memory associated with the handle. 826 */ 827 void 828 zpool_close(zpool_handle_t *zhp) 829 { 830 if (zhp->zpool_config) 831 nvlist_free(zhp->zpool_config); 832 if (zhp->zpool_old_config) 833 nvlist_free(zhp->zpool_old_config); 834 if (zhp->zpool_props) 835 nvlist_free(zhp->zpool_props); 836 free(zhp); 837 } 838 839 /* 840 * Return the name of the pool. 841 */ 842 const char * 843 zpool_get_name(zpool_handle_t *zhp) 844 { 845 return (zhp->zpool_name); 846 } 847 848 849 /* 850 * Return the state of the pool (ACTIVE or UNAVAILABLE) 851 */ 852 int 853 zpool_get_state(zpool_handle_t *zhp) 854 { 855 return (zhp->zpool_state); 856 } 857 858 /* 859 * Create the named pool, using the provided vdev list. It is assumed 860 * that the consumer has already validated the contents of the nvlist, so we 861 * don't have to worry about error semantics. 862 */ 863 int 864 zpool_create(libzfs_handle_t *hdl, const char *pool, nvlist_t *nvroot, 865 nvlist_t *props, nvlist_t *fsprops) 866 { 867 zfs_cmd_t zc = { 0 }; 868 nvlist_t *zc_fsprops = NULL; 869 nvlist_t *zc_props = NULL; 870 char msg[1024]; 871 char *altroot; 872 int ret = -1; 873 874 (void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN, 875 "cannot create '%s'"), pool); 876 877 if (!zpool_name_valid(hdl, B_FALSE, pool)) 878 return (zfs_error(hdl, EZFS_INVALIDNAME, msg)); 879 880 if (zcmd_write_conf_nvlist(hdl, &zc, nvroot) != 0) 881 return (-1); 882 883 if (props) { 884 if ((zc_props = zpool_valid_proplist(hdl, pool, props, 885 SPA_VERSION_1, B_TRUE, msg)) == NULL) { 886 goto create_failed; 887 } 888 } 889 890 if (fsprops) { 891 uint64_t zoned; 892 char *zonestr; 893 894 zoned = ((nvlist_lookup_string(fsprops, 895 zfs_prop_to_name(ZFS_PROP_ZONED), &zonestr) == 0) && 896 strcmp(zonestr, "on") == 0); 897 898 if ((zc_fsprops = zfs_valid_proplist(hdl, 899 ZFS_TYPE_FILESYSTEM, fsprops, zoned, NULL, msg)) == NULL) { 900 goto create_failed; 901 } 902 if (!zc_props && 903 (nvlist_alloc(&zc_props, NV_UNIQUE_NAME, 0) != 0)) { 904 goto create_failed; 905 } 906 if (nvlist_add_nvlist(zc_props, 907 ZPOOL_ROOTFS_PROPS, zc_fsprops) != 0) { 908 goto create_failed; 909 } 910 } 911 912 if (zc_props && zcmd_write_src_nvlist(hdl, &zc, zc_props) != 0) 913 goto create_failed; 914 915 (void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name)); 916 917 if ((ret = zfs_ioctl(hdl, ZFS_IOC_POOL_CREATE, &zc)) != 0) { 918 919 zcmd_free_nvlists(&zc); 920 nvlist_free(zc_props); 921 nvlist_free(zc_fsprops); 922 923 switch (errno) { 924 case EBUSY: 925 /* 926 * This can happen if the user has specified the same 927 * device multiple times. We can't reliably detect this 928 * until we try to add it and see we already have a 929 * label. 930 */ 931 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 932 "one or more vdevs refer to the same device")); 933 return (zfs_error(hdl, EZFS_BADDEV, msg)); 934 935 case EOVERFLOW: 936 /* 937 * This occurs when one of the devices is below 938 * SPA_MINDEVSIZE. Unfortunately, we can't detect which 939 * device was the problem device since there's no 940 * reliable way to determine device size from userland. 941 */ 942 { 943 char buf[64]; 944 945 zfs_nicenum(SPA_MINDEVSIZE, buf, sizeof (buf)); 946 947 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 948 "one or more devices is less than the " 949 "minimum size (%s)"), buf); 950 } 951 return (zfs_error(hdl, EZFS_BADDEV, msg)); 952 953 case ENOSPC: 954 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 955 "one or more devices is out of space")); 956 return (zfs_error(hdl, EZFS_BADDEV, msg)); 957 958 case ENOTBLK: 959 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 960 "cache device must be a disk or disk slice")); 961 return (zfs_error(hdl, EZFS_BADDEV, msg)); 962 963 default: 964 return (zpool_standard_error(hdl, errno, msg)); 965 } 966 } 967 968 /* 969 * If this is an alternate root pool, then we automatically set the 970 * mountpoint of the root dataset to be '/'. 971 */ 972 if (nvlist_lookup_string(props, zpool_prop_to_name(ZPOOL_PROP_ALTROOT), 973 &altroot) == 0) { 974 zfs_handle_t *zhp; 975 976 verify((zhp = zfs_open(hdl, pool, ZFS_TYPE_DATASET)) != NULL); 977 verify(zfs_prop_set(zhp, zfs_prop_to_name(ZFS_PROP_MOUNTPOINT), 978 "/") == 0); 979 980 zfs_close(zhp); 981 } 982 983 create_failed: 984 zcmd_free_nvlists(&zc); 985 nvlist_free(zc_props); 986 nvlist_free(zc_fsprops); 987 return (ret); 988 } 989 990 /* 991 * Destroy the given pool. It is up to the caller to ensure that there are no 992 * datasets left in the pool. 993 */ 994 int 995 zpool_destroy(zpool_handle_t *zhp) 996 { 997 zfs_cmd_t zc = { 0 }; 998 zfs_handle_t *zfp = NULL; 999 libzfs_handle_t *hdl = zhp->zpool_hdl; 1000 char msg[1024]; 1001 1002 if (zhp->zpool_state == POOL_STATE_ACTIVE && 1003 (zfp = zfs_open(zhp->zpool_hdl, zhp->zpool_name, 1004 ZFS_TYPE_FILESYSTEM)) == NULL) 1005 return (-1); 1006 1007 if (zpool_remove_zvol_links(zhp) != 0) 1008 return (-1); 1009 1010 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1011 1012 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_DESTROY, &zc) != 0) { 1013 (void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN, 1014 "cannot destroy '%s'"), zhp->zpool_name); 1015 1016 if (errno == EROFS) { 1017 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1018 "one or more devices is read only")); 1019 (void) zfs_error(hdl, EZFS_BADDEV, msg); 1020 } else { 1021 (void) zpool_standard_error(hdl, errno, msg); 1022 } 1023 1024 if (zfp) 1025 zfs_close(zfp); 1026 return (-1); 1027 } 1028 1029 if (zfp) { 1030 remove_mountpoint(zfp); 1031 zfs_close(zfp); 1032 } 1033 1034 return (0); 1035 } 1036 1037 /* 1038 * Add the given vdevs to the pool. The caller must have already performed the 1039 * necessary verification to ensure that the vdev specification is well-formed. 1040 */ 1041 int 1042 zpool_add(zpool_handle_t *zhp, nvlist_t *nvroot) 1043 { 1044 zfs_cmd_t zc = { 0 }; 1045 int ret; 1046 libzfs_handle_t *hdl = zhp->zpool_hdl; 1047 char msg[1024]; 1048 nvlist_t **spares, **l2cache; 1049 uint_t nspares, nl2cache; 1050 1051 (void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN, 1052 "cannot add to '%s'"), zhp->zpool_name); 1053 1054 if (zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL) < 1055 SPA_VERSION_SPARES && 1056 nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, 1057 &spares, &nspares) == 0) { 1058 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool must be " 1059 "upgraded to add hot spares")); 1060 return (zfs_error(hdl, EZFS_BADVERSION, msg)); 1061 } 1062 1063 if (pool_is_bootable(zhp) && nvlist_lookup_nvlist_array(nvroot, 1064 ZPOOL_CONFIG_SPARES, &spares, &nspares) == 0) { 1065 uint64_t s; 1066 1067 for (s = 0; s < nspares; s++) { 1068 char *path; 1069 1070 if (nvlist_lookup_string(spares[s], ZPOOL_CONFIG_PATH, 1071 &path) == 0 && pool_uses_efi(spares[s])) { 1072 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1073 "device '%s' contains an EFI label and " 1074 "cannot be used on root pools."), 1075 zpool_vdev_name(hdl, NULL, spares[s])); 1076 return (zfs_error(hdl, EZFS_POOL_NOTSUP, msg)); 1077 } 1078 } 1079 } 1080 1081 if (zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL) < 1082 SPA_VERSION_L2CACHE && 1083 nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, 1084 &l2cache, &nl2cache) == 0) { 1085 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool must be " 1086 "upgraded to add cache devices")); 1087 return (zfs_error(hdl, EZFS_BADVERSION, msg)); 1088 } 1089 1090 if (zcmd_write_conf_nvlist(hdl, &zc, nvroot) != 0) 1091 return (-1); 1092 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1093 1094 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_ADD, &zc) != 0) { 1095 switch (errno) { 1096 case EBUSY: 1097 /* 1098 * This can happen if the user has specified the same 1099 * device multiple times. We can't reliably detect this 1100 * until we try to add it and see we already have a 1101 * label. 1102 */ 1103 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1104 "one or more vdevs refer to the same device")); 1105 (void) zfs_error(hdl, EZFS_BADDEV, msg); 1106 break; 1107 1108 case EOVERFLOW: 1109 /* 1110 * This occurrs when one of the devices is below 1111 * SPA_MINDEVSIZE. Unfortunately, we can't detect which 1112 * device was the problem device since there's no 1113 * reliable way to determine device size from userland. 1114 */ 1115 { 1116 char buf[64]; 1117 1118 zfs_nicenum(SPA_MINDEVSIZE, buf, sizeof (buf)); 1119 1120 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1121 "device is less than the minimum " 1122 "size (%s)"), buf); 1123 } 1124 (void) zfs_error(hdl, EZFS_BADDEV, msg); 1125 break; 1126 1127 case ENOTSUP: 1128 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1129 "pool must be upgraded to add these vdevs")); 1130 (void) zfs_error(hdl, EZFS_BADVERSION, msg); 1131 break; 1132 1133 case EDOM: 1134 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1135 "root pool can not have multiple vdevs" 1136 " or separate logs")); 1137 (void) zfs_error(hdl, EZFS_POOL_NOTSUP, msg); 1138 break; 1139 1140 case ENOTBLK: 1141 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1142 "cache device must be a disk or disk slice")); 1143 (void) zfs_error(hdl, EZFS_BADDEV, msg); 1144 break; 1145 1146 default: 1147 (void) zpool_standard_error(hdl, errno, msg); 1148 } 1149 1150 ret = -1; 1151 } else { 1152 ret = 0; 1153 } 1154 1155 zcmd_free_nvlists(&zc); 1156 1157 return (ret); 1158 } 1159 1160 /* 1161 * Exports the pool from the system. The caller must ensure that there are no 1162 * mounted datasets in the pool. 1163 */ 1164 int 1165 zpool_export_common(zpool_handle_t *zhp, boolean_t force, boolean_t hardforce) 1166 { 1167 zfs_cmd_t zc = { 0 }; 1168 char msg[1024]; 1169 1170 if (zpool_remove_zvol_links(zhp) != 0) 1171 return (-1); 1172 1173 (void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN, 1174 "cannot export '%s'"), zhp->zpool_name); 1175 1176 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1177 zc.zc_cookie = force; 1178 zc.zc_guid = hardforce; 1179 1180 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_EXPORT, &zc) != 0) { 1181 switch (errno) { 1182 case EXDEV: 1183 zfs_error_aux(zhp->zpool_hdl, dgettext(TEXT_DOMAIN, 1184 "use '-f' to override the following errors:\n" 1185 "'%s' has an active shared spare which could be" 1186 " used by other pools once '%s' is exported."), 1187 zhp->zpool_name, zhp->zpool_name); 1188 return (zfs_error(zhp->zpool_hdl, EZFS_ACTIVE_SPARE, 1189 msg)); 1190 default: 1191 return (zpool_standard_error_fmt(zhp->zpool_hdl, errno, 1192 msg)); 1193 } 1194 } 1195 1196 return (0); 1197 } 1198 1199 int 1200 zpool_export(zpool_handle_t *zhp, boolean_t force) 1201 { 1202 return (zpool_export_common(zhp, force, B_FALSE)); 1203 } 1204 1205 int 1206 zpool_export_force(zpool_handle_t *zhp) 1207 { 1208 return (zpool_export_common(zhp, B_TRUE, B_TRUE)); 1209 } 1210 1211 /* 1212 * zpool_import() is a contracted interface. Should be kept the same 1213 * if possible. 1214 * 1215 * Applications should use zpool_import_props() to import a pool with 1216 * new properties value to be set. 1217 */ 1218 int 1219 zpool_import(libzfs_handle_t *hdl, nvlist_t *config, const char *newname, 1220 char *altroot) 1221 { 1222 nvlist_t *props = NULL; 1223 int ret; 1224 1225 if (altroot != NULL) { 1226 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) { 1227 return (zfs_error_fmt(hdl, EZFS_NOMEM, 1228 dgettext(TEXT_DOMAIN, "cannot import '%s'"), 1229 newname)); 1230 } 1231 1232 if (nvlist_add_string(props, 1233 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), altroot) != 0 || 1234 nvlist_add_string(props, 1235 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE), "none") != 0) { 1236 nvlist_free(props); 1237 return (zfs_error_fmt(hdl, EZFS_NOMEM, 1238 dgettext(TEXT_DOMAIN, "cannot import '%s'"), 1239 newname)); 1240 } 1241 } 1242 1243 ret = zpool_import_props(hdl, config, newname, props, B_FALSE); 1244 if (props) 1245 nvlist_free(props); 1246 return (ret); 1247 } 1248 1249 /* 1250 * Import the given pool using the known configuration and a list of 1251 * properties to be set. The configuration should have come from 1252 * zpool_find_import(). The 'newname' parameters control whether the pool 1253 * is imported with a different name. 1254 */ 1255 int 1256 zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname, 1257 nvlist_t *props, boolean_t importfaulted) 1258 { 1259 zfs_cmd_t zc = { 0 }; 1260 char *thename; 1261 char *origname; 1262 int ret; 1263 char errbuf[1024]; 1264 1265 verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 1266 &origname) == 0); 1267 1268 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1269 "cannot import pool '%s'"), origname); 1270 1271 if (newname != NULL) { 1272 if (!zpool_name_valid(hdl, B_FALSE, newname)) 1273 return (zfs_error_fmt(hdl, EZFS_INVALIDNAME, 1274 dgettext(TEXT_DOMAIN, "cannot import '%s'"), 1275 newname)); 1276 thename = (char *)newname; 1277 } else { 1278 thename = origname; 1279 } 1280 1281 if (props) { 1282 uint64_t version; 1283 1284 verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION, 1285 &version) == 0); 1286 1287 if ((props = zpool_valid_proplist(hdl, origname, 1288 props, version, B_TRUE, errbuf)) == NULL) { 1289 return (-1); 1290 } else if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) { 1291 nvlist_free(props); 1292 return (-1); 1293 } 1294 } 1295 1296 (void) strlcpy(zc.zc_name, thename, sizeof (zc.zc_name)); 1297 1298 verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, 1299 &zc.zc_guid) == 0); 1300 1301 if (zcmd_write_conf_nvlist(hdl, &zc, config) != 0) { 1302 nvlist_free(props); 1303 return (-1); 1304 } 1305 1306 zc.zc_cookie = (uint64_t)importfaulted; 1307 ret = 0; 1308 if (zfs_ioctl(hdl, ZFS_IOC_POOL_IMPORT, &zc) != 0) { 1309 char desc[1024]; 1310 if (newname == NULL) 1311 (void) snprintf(desc, sizeof (desc), 1312 dgettext(TEXT_DOMAIN, "cannot import '%s'"), 1313 thename); 1314 else 1315 (void) snprintf(desc, sizeof (desc), 1316 dgettext(TEXT_DOMAIN, "cannot import '%s' as '%s'"), 1317 origname, thename); 1318 1319 switch (errno) { 1320 case ENOTSUP: 1321 /* 1322 * Unsupported version. 1323 */ 1324 (void) zfs_error(hdl, EZFS_BADVERSION, desc); 1325 break; 1326 1327 case EINVAL: 1328 (void) zfs_error(hdl, EZFS_INVALCONFIG, desc); 1329 break; 1330 1331 default: 1332 (void) zpool_standard_error(hdl, errno, desc); 1333 } 1334 1335 ret = -1; 1336 } else { 1337 zpool_handle_t *zhp; 1338 1339 /* 1340 * This should never fail, but play it safe anyway. 1341 */ 1342 if (zpool_open_silent(hdl, thename, &zhp) != 0) { 1343 ret = -1; 1344 } else if (zhp != NULL) { 1345 ret = zpool_create_zvol_links(zhp); 1346 zpool_close(zhp); 1347 } 1348 1349 } 1350 1351 zcmd_free_nvlists(&zc); 1352 nvlist_free(props); 1353 1354 return (ret); 1355 } 1356 1357 /* 1358 * Scrub the pool. 1359 */ 1360 int 1361 zpool_scrub(zpool_handle_t *zhp, pool_scrub_type_t type) 1362 { 1363 zfs_cmd_t zc = { 0 }; 1364 char msg[1024]; 1365 libzfs_handle_t *hdl = zhp->zpool_hdl; 1366 1367 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1368 zc.zc_cookie = type; 1369 1370 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_SCRUB, &zc) == 0) 1371 return (0); 1372 1373 (void) snprintf(msg, sizeof (msg), 1374 dgettext(TEXT_DOMAIN, "cannot scrub %s"), zc.zc_name); 1375 1376 if (errno == EBUSY) 1377 return (zfs_error(hdl, EZFS_RESILVERING, msg)); 1378 else 1379 return (zpool_standard_error(hdl, errno, msg)); 1380 } 1381 1382 /* 1383 * Find a vdev that matches the search criteria specified. We use the 1384 * the nvpair name to determine how we should look for the device. 1385 * 'avail_spare' is set to TRUE if the provided guid refers to an AVAIL 1386 * spare; but FALSE if its an INUSE spare. 1387 */ 1388 static nvlist_t * 1389 vdev_to_nvlist_iter(nvlist_t *nv, nvlist_t *search, boolean_t *avail_spare, 1390 boolean_t *l2cache, boolean_t *log) 1391 { 1392 uint_t c, children; 1393 nvlist_t **child; 1394 nvlist_t *ret; 1395 uint64_t is_log; 1396 char *srchkey; 1397 nvpair_t *pair = nvlist_next_nvpair(search, NULL); 1398 1399 /* Nothing to look for */ 1400 if (search == NULL || pair == NULL) 1401 return (NULL); 1402 1403 /* Obtain the key we will use to search */ 1404 srchkey = nvpair_name(pair); 1405 1406 switch (nvpair_type(pair)) { 1407 case DATA_TYPE_UINT64: { 1408 uint64_t srchval, theguid, present; 1409 1410 verify(nvpair_value_uint64(pair, &srchval) == 0); 1411 if (strcmp(srchkey, ZPOOL_CONFIG_GUID) == 0) { 1412 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT, 1413 &present) == 0) { 1414 /* 1415 * If the device has never been present since 1416 * import, the only reliable way to match the 1417 * vdev is by GUID. 1418 */ 1419 verify(nvlist_lookup_uint64(nv, 1420 ZPOOL_CONFIG_GUID, &theguid) == 0); 1421 if (theguid == srchval) 1422 return (nv); 1423 } 1424 } 1425 break; 1426 } 1427 1428 case DATA_TYPE_STRING: { 1429 char *srchval, *val; 1430 1431 verify(nvpair_value_string(pair, &srchval) == 0); 1432 if (nvlist_lookup_string(nv, srchkey, &val) != 0) 1433 break; 1434 1435 /* 1436 * Search for the requested value. We special case the search 1437 * for ZPOOL_CONFIG_PATH when it's a wholedisk. Otherwise, 1438 * all other searches are simple string compares. 1439 */ 1440 if (strcmp(srchkey, ZPOOL_CONFIG_PATH) == 0 && val) { 1441 uint64_t wholedisk = 0; 1442 1443 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, 1444 &wholedisk); 1445 if (wholedisk) { 1446 /* 1447 * For whole disks, the internal path has 's0', 1448 * but the path passed in by the user doesn't. 1449 */ 1450 if (strlen(srchval) == strlen(val) - 2 && 1451 strncmp(srchval, val, strlen(srchval)) == 0) 1452 return (nv); 1453 break; 1454 } 1455 } 1456 1457 /* 1458 * Common case 1459 */ 1460 if (strcmp(srchval, val) == 0) 1461 return (nv); 1462 break; 1463 } 1464 1465 default: 1466 break; 1467 } 1468 1469 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, 1470 &child, &children) != 0) 1471 return (NULL); 1472 1473 for (c = 0; c < children; c++) { 1474 if ((ret = vdev_to_nvlist_iter(child[c], search, 1475 avail_spare, l2cache, NULL)) != NULL) { 1476 /* 1477 * The 'is_log' value is only set for the toplevel 1478 * vdev, not the leaf vdevs. So we always lookup the 1479 * log device from the root of the vdev tree (where 1480 * 'log' is non-NULL). 1481 */ 1482 if (log != NULL && 1483 nvlist_lookup_uint64(child[c], 1484 ZPOOL_CONFIG_IS_LOG, &is_log) == 0 && 1485 is_log) { 1486 *log = B_TRUE; 1487 } 1488 return (ret); 1489 } 1490 } 1491 1492 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES, 1493 &child, &children) == 0) { 1494 for (c = 0; c < children; c++) { 1495 if ((ret = vdev_to_nvlist_iter(child[c], search, 1496 avail_spare, l2cache, NULL)) != NULL) { 1497 *avail_spare = B_TRUE; 1498 return (ret); 1499 } 1500 } 1501 } 1502 1503 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE, 1504 &child, &children) == 0) { 1505 for (c = 0; c < children; c++) { 1506 if ((ret = vdev_to_nvlist_iter(child[c], search, 1507 avail_spare, l2cache, NULL)) != NULL) { 1508 *l2cache = B_TRUE; 1509 return (ret); 1510 } 1511 } 1512 } 1513 1514 return (NULL); 1515 } 1516 1517 /* 1518 * Given a physical path (minus the "/devices" prefix), find the 1519 * associated vdev. 1520 */ 1521 nvlist_t * 1522 zpool_find_vdev_by_physpath(zpool_handle_t *zhp, const char *ppath, 1523 boolean_t *avail_spare, boolean_t *l2cache, boolean_t *log) 1524 { 1525 nvlist_t *search, *nvroot, *ret; 1526 1527 verify(nvlist_alloc(&search, NV_UNIQUE_NAME, KM_SLEEP) == 0); 1528 verify(nvlist_add_string(search, ZPOOL_CONFIG_PHYS_PATH, ppath) == 0); 1529 1530 verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE, 1531 &nvroot) == 0); 1532 1533 *avail_spare = B_FALSE; 1534 ret = vdev_to_nvlist_iter(nvroot, search, avail_spare, l2cache, log); 1535 nvlist_free(search); 1536 1537 return (ret); 1538 } 1539 1540 nvlist_t * 1541 zpool_find_vdev(zpool_handle_t *zhp, const char *path, boolean_t *avail_spare, 1542 boolean_t *l2cache, boolean_t *log) 1543 { 1544 char buf[MAXPATHLEN]; 1545 char *end; 1546 nvlist_t *nvroot, *search, *ret; 1547 uint64_t guid; 1548 1549 verify(nvlist_alloc(&search, NV_UNIQUE_NAME, KM_SLEEP) == 0); 1550 1551 guid = strtoull(path, &end, 10); 1552 if (guid != 0 && *end == '\0') { 1553 verify(nvlist_add_uint64(search, ZPOOL_CONFIG_GUID, guid) == 0); 1554 } else if (path[0] != '/') { 1555 (void) snprintf(buf, sizeof (buf), "%s%s", "/dev/dsk/", path); 1556 verify(nvlist_add_string(search, ZPOOL_CONFIG_PATH, buf) == 0); 1557 } else { 1558 verify(nvlist_add_string(search, ZPOOL_CONFIG_PATH, path) == 0); 1559 } 1560 1561 verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE, 1562 &nvroot) == 0); 1563 1564 *avail_spare = B_FALSE; 1565 *l2cache = B_FALSE; 1566 if (log != NULL) 1567 *log = B_FALSE; 1568 ret = vdev_to_nvlist_iter(nvroot, search, avail_spare, l2cache, log); 1569 nvlist_free(search); 1570 1571 return (ret); 1572 } 1573 1574 static int 1575 vdev_online(nvlist_t *nv) 1576 { 1577 uint64_t ival; 1578 1579 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_OFFLINE, &ival) == 0 || 1580 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_FAULTED, &ival) == 0 || 1581 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_REMOVED, &ival) == 0) 1582 return (0); 1583 1584 return (1); 1585 } 1586 1587 /* 1588 * Helper function for zpool_get_physpaths(). 1589 */ 1590 static int 1591 vdev_get_one_physpath(nvlist_t *config, char *physpath, size_t physpath_size, 1592 size_t *bytes_written) 1593 { 1594 size_t bytes_left, pos, rsz; 1595 char *tmppath; 1596 const char *format; 1597 1598 if (nvlist_lookup_string(config, ZPOOL_CONFIG_PHYS_PATH, 1599 &tmppath) != 0) 1600 return (EZFS_NODEVICE); 1601 1602 pos = *bytes_written; 1603 bytes_left = physpath_size - pos; 1604 format = (pos == 0) ? "%s" : " %s"; 1605 1606 rsz = snprintf(physpath + pos, bytes_left, format, tmppath); 1607 *bytes_written += rsz; 1608 1609 if (rsz >= bytes_left) { 1610 /* if physpath was not copied properly, clear it */ 1611 if (bytes_left != 0) { 1612 physpath[pos] = 0; 1613 } 1614 return (EZFS_NOSPC); 1615 } 1616 return (0); 1617 } 1618 1619 static int 1620 vdev_get_physpaths(nvlist_t *nv, char *physpath, size_t phypath_size, 1621 size_t *rsz, boolean_t is_spare) 1622 { 1623 char *type; 1624 int ret; 1625 1626 if (nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) != 0) 1627 return (EZFS_INVALCONFIG); 1628 1629 if (strcmp(type, VDEV_TYPE_DISK) == 0) { 1630 /* 1631 * An active spare device has ZPOOL_CONFIG_IS_SPARE set. 1632 * For a spare vdev, we only want to boot from the active 1633 * spare device. 1634 */ 1635 if (is_spare) { 1636 uint64_t spare = 0; 1637 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_SPARE, 1638 &spare); 1639 if (!spare) 1640 return (EZFS_INVALCONFIG); 1641 } 1642 1643 if (vdev_online(nv)) { 1644 if ((ret = vdev_get_one_physpath(nv, physpath, 1645 phypath_size, rsz)) != 0) 1646 return (ret); 1647 } 1648 } else if (strcmp(type, VDEV_TYPE_MIRROR) == 0 || 1649 strcmp(type, VDEV_TYPE_REPLACING) == 0 || 1650 (is_spare = (strcmp(type, VDEV_TYPE_SPARE) == 0))) { 1651 nvlist_t **child; 1652 uint_t count; 1653 int i, ret; 1654 1655 if (nvlist_lookup_nvlist_array(nv, 1656 ZPOOL_CONFIG_CHILDREN, &child, &count) != 0) 1657 return (EZFS_INVALCONFIG); 1658 1659 for (i = 0; i < count; i++) { 1660 ret = vdev_get_physpaths(child[i], physpath, 1661 phypath_size, rsz, is_spare); 1662 if (ret == EZFS_NOSPC) 1663 return (ret); 1664 } 1665 } 1666 1667 return (EZFS_POOL_INVALARG); 1668 } 1669 1670 /* 1671 * Get phys_path for a root pool config. 1672 * Return 0 on success; non-zero on failure. 1673 */ 1674 static int 1675 zpool_get_config_physpath(nvlist_t *config, char *physpath, size_t phypath_size) 1676 { 1677 size_t rsz; 1678 nvlist_t *vdev_root; 1679 nvlist_t **child; 1680 uint_t count; 1681 char *type; 1682 1683 rsz = 0; 1684 1685 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 1686 &vdev_root) != 0) 1687 return (EZFS_INVALCONFIG); 1688 1689 if (nvlist_lookup_string(vdev_root, ZPOOL_CONFIG_TYPE, &type) != 0 || 1690 nvlist_lookup_nvlist_array(vdev_root, ZPOOL_CONFIG_CHILDREN, 1691 &child, &count) != 0) 1692 return (EZFS_INVALCONFIG); 1693 1694 /* 1695 * root pool can not have EFI labeled disks and can only have 1696 * a single top-level vdev. 1697 */ 1698 if (strcmp(type, VDEV_TYPE_ROOT) != 0 || count != 1 || 1699 pool_uses_efi(vdev_root)) 1700 return (EZFS_POOL_INVALARG); 1701 1702 (void) vdev_get_physpaths(child[0], physpath, phypath_size, &rsz, 1703 B_FALSE); 1704 1705 /* No online devices */ 1706 if (rsz == 0) 1707 return (EZFS_NODEVICE); 1708 1709 return (0); 1710 } 1711 1712 /* 1713 * Get phys_path for a root pool 1714 * Return 0 on success; non-zero on failure. 1715 */ 1716 int 1717 zpool_get_physpath(zpool_handle_t *zhp, char *physpath, size_t phypath_size) 1718 { 1719 return (zpool_get_config_physpath(zhp->zpool_config, physpath, 1720 phypath_size)); 1721 } 1722 1723 /* 1724 * Returns TRUE if the given guid corresponds to the given type. 1725 * This is used to check for hot spares (INUSE or not), and level 2 cache 1726 * devices. 1727 */ 1728 static boolean_t 1729 is_guid_type(zpool_handle_t *zhp, uint64_t guid, const char *type) 1730 { 1731 uint64_t target_guid; 1732 nvlist_t *nvroot; 1733 nvlist_t **list; 1734 uint_t count; 1735 int i; 1736 1737 verify(nvlist_lookup_nvlist(zhp->zpool_config, ZPOOL_CONFIG_VDEV_TREE, 1738 &nvroot) == 0); 1739 if (nvlist_lookup_nvlist_array(nvroot, type, &list, &count) == 0) { 1740 for (i = 0; i < count; i++) { 1741 verify(nvlist_lookup_uint64(list[i], ZPOOL_CONFIG_GUID, 1742 &target_guid) == 0); 1743 if (guid == target_guid) 1744 return (B_TRUE); 1745 } 1746 } 1747 1748 return (B_FALSE); 1749 } 1750 1751 /* 1752 * If the device has being dynamically expanded then we need to relabel 1753 * the disk to use the new unallocated space. 1754 */ 1755 static int 1756 zpool_relabel_disk(libzfs_handle_t *hdl, const char *name) 1757 { 1758 char path[MAXPATHLEN]; 1759 char errbuf[1024]; 1760 int fd, error; 1761 int (*_efi_use_whole_disk)(int); 1762 1763 if ((_efi_use_whole_disk = (int (*)(int))dlsym(RTLD_DEFAULT, 1764 "efi_use_whole_disk")) == NULL) 1765 return (-1); 1766 1767 (void) snprintf(path, sizeof (path), "%s/%s", RDISK_ROOT, name); 1768 1769 if ((fd = open(path, O_RDWR | O_NDELAY)) < 0) { 1770 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "cannot " 1771 "relabel '%s': unable to open device"), name); 1772 return (zfs_error(hdl, EZFS_OPENFAILED, errbuf)); 1773 } 1774 1775 /* 1776 * It's possible that we might encounter an error if the device 1777 * does not have any unallocated space left. If so, we simply 1778 * ignore that error and continue on. 1779 */ 1780 error = _efi_use_whole_disk(fd); 1781 (void) close(fd); 1782 if (error && error != VT_ENOSPC) { 1783 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "cannot " 1784 "relabel '%s': unable to read disk capacity"), name); 1785 return (zfs_error(hdl, EZFS_NOCAP, errbuf)); 1786 } 1787 return (0); 1788 } 1789 1790 /* 1791 * Bring the specified vdev online. The 'flags' parameter is a set of the 1792 * ZFS_ONLINE_* flags. 1793 */ 1794 int 1795 zpool_vdev_online(zpool_handle_t *zhp, const char *path, int flags, 1796 vdev_state_t *newstate) 1797 { 1798 zfs_cmd_t zc = { 0 }; 1799 char msg[1024]; 1800 nvlist_t *tgt; 1801 boolean_t avail_spare, l2cache, islog; 1802 libzfs_handle_t *hdl = zhp->zpool_hdl; 1803 1804 if (flags & ZFS_ONLINE_EXPAND) { 1805 (void) snprintf(msg, sizeof (msg), 1806 dgettext(TEXT_DOMAIN, "cannot expand %s"), path); 1807 } else { 1808 (void) snprintf(msg, sizeof (msg), 1809 dgettext(TEXT_DOMAIN, "cannot online %s"), path); 1810 } 1811 1812 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1813 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 1814 &islog)) == NULL) 1815 return (zfs_error(hdl, EZFS_NODEVICE, msg)); 1816 1817 verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0); 1818 1819 if (avail_spare || 1820 is_guid_type(zhp, zc.zc_guid, ZPOOL_CONFIG_SPARES) == B_TRUE) 1821 return (zfs_error(hdl, EZFS_ISSPARE, msg)); 1822 1823 if (flags & ZFS_ONLINE_EXPAND || 1824 zpool_get_prop_int(zhp, ZPOOL_PROP_AUTOEXPAND, NULL)) { 1825 char *pathname = NULL; 1826 uint64_t wholedisk = 0; 1827 1828 (void) nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_WHOLE_DISK, 1829 &wholedisk); 1830 verify(nvlist_lookup_string(tgt, ZPOOL_CONFIG_PATH, 1831 &pathname) == 0); 1832 1833 /* 1834 * XXX - L2ARC 1.0 devices can't support expansion. 1835 */ 1836 if (l2cache) { 1837 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1838 "cannot expand cache devices")); 1839 return (zfs_error(hdl, EZFS_VDEVNOTSUP, msg)); 1840 } 1841 1842 if (wholedisk) { 1843 pathname += strlen(DISK_ROOT) + 1; 1844 (void) zpool_relabel_disk(zhp->zpool_hdl, pathname); 1845 } 1846 } 1847 1848 zc.zc_cookie = VDEV_STATE_ONLINE; 1849 zc.zc_obj = flags; 1850 1851 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_SET_STATE, &zc) != 0) 1852 return (zpool_standard_error(hdl, errno, msg)); 1853 1854 *newstate = zc.zc_cookie; 1855 return (0); 1856 } 1857 1858 /* 1859 * Take the specified vdev offline 1860 */ 1861 int 1862 zpool_vdev_offline(zpool_handle_t *zhp, const char *path, boolean_t istmp) 1863 { 1864 zfs_cmd_t zc = { 0 }; 1865 char msg[1024]; 1866 nvlist_t *tgt; 1867 boolean_t avail_spare, l2cache; 1868 libzfs_handle_t *hdl = zhp->zpool_hdl; 1869 1870 (void) snprintf(msg, sizeof (msg), 1871 dgettext(TEXT_DOMAIN, "cannot offline %s"), path); 1872 1873 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1874 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 1875 NULL)) == NULL) 1876 return (zfs_error(hdl, EZFS_NODEVICE, msg)); 1877 1878 verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0); 1879 1880 if (avail_spare || 1881 is_guid_type(zhp, zc.zc_guid, ZPOOL_CONFIG_SPARES) == B_TRUE) 1882 return (zfs_error(hdl, EZFS_ISSPARE, msg)); 1883 1884 zc.zc_cookie = VDEV_STATE_OFFLINE; 1885 zc.zc_obj = istmp ? ZFS_OFFLINE_TEMPORARY : 0; 1886 1887 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 1888 return (0); 1889 1890 switch (errno) { 1891 case EBUSY: 1892 1893 /* 1894 * There are no other replicas of this device. 1895 */ 1896 return (zfs_error(hdl, EZFS_NOREPLICAS, msg)); 1897 1898 case EEXIST: 1899 /* 1900 * The log device has unplayed logs 1901 */ 1902 return (zfs_error(hdl, EZFS_UNPLAYED_LOGS, msg)); 1903 1904 default: 1905 return (zpool_standard_error(hdl, errno, msg)); 1906 } 1907 } 1908 1909 /* 1910 * Mark the given vdev faulted. 1911 */ 1912 int 1913 zpool_vdev_fault(zpool_handle_t *zhp, uint64_t guid) 1914 { 1915 zfs_cmd_t zc = { 0 }; 1916 char msg[1024]; 1917 libzfs_handle_t *hdl = zhp->zpool_hdl; 1918 1919 (void) snprintf(msg, sizeof (msg), 1920 dgettext(TEXT_DOMAIN, "cannot fault %llu"), guid); 1921 1922 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1923 zc.zc_guid = guid; 1924 zc.zc_cookie = VDEV_STATE_FAULTED; 1925 1926 if (ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 1927 return (0); 1928 1929 switch (errno) { 1930 case EBUSY: 1931 1932 /* 1933 * There are no other replicas of this device. 1934 */ 1935 return (zfs_error(hdl, EZFS_NOREPLICAS, msg)); 1936 1937 default: 1938 return (zpool_standard_error(hdl, errno, msg)); 1939 } 1940 1941 } 1942 1943 /* 1944 * Mark the given vdev degraded. 1945 */ 1946 int 1947 zpool_vdev_degrade(zpool_handle_t *zhp, uint64_t guid) 1948 { 1949 zfs_cmd_t zc = { 0 }; 1950 char msg[1024]; 1951 libzfs_handle_t *hdl = zhp->zpool_hdl; 1952 1953 (void) snprintf(msg, sizeof (msg), 1954 dgettext(TEXT_DOMAIN, "cannot degrade %llu"), guid); 1955 1956 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1957 zc.zc_guid = guid; 1958 zc.zc_cookie = VDEV_STATE_DEGRADED; 1959 1960 if (ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 1961 return (0); 1962 1963 return (zpool_standard_error(hdl, errno, msg)); 1964 } 1965 1966 /* 1967 * Returns TRUE if the given nvlist is a vdev that was originally swapped in as 1968 * a hot spare. 1969 */ 1970 static boolean_t 1971 is_replacing_spare(nvlist_t *search, nvlist_t *tgt, int which) 1972 { 1973 nvlist_t **child; 1974 uint_t c, children; 1975 char *type; 1976 1977 if (nvlist_lookup_nvlist_array(search, ZPOOL_CONFIG_CHILDREN, &child, 1978 &children) == 0) { 1979 verify(nvlist_lookup_string(search, ZPOOL_CONFIG_TYPE, 1980 &type) == 0); 1981 1982 if (strcmp(type, VDEV_TYPE_SPARE) == 0 && 1983 children == 2 && child[which] == tgt) 1984 return (B_TRUE); 1985 1986 for (c = 0; c < children; c++) 1987 if (is_replacing_spare(child[c], tgt, which)) 1988 return (B_TRUE); 1989 } 1990 1991 return (B_FALSE); 1992 } 1993 1994 /* 1995 * Attach new_disk (fully described by nvroot) to old_disk. 1996 * If 'replacing' is specified, the new disk will replace the old one. 1997 */ 1998 int 1999 zpool_vdev_attach(zpool_handle_t *zhp, 2000 const char *old_disk, const char *new_disk, nvlist_t *nvroot, int replacing) 2001 { 2002 zfs_cmd_t zc = { 0 }; 2003 char msg[1024]; 2004 int ret; 2005 nvlist_t *tgt; 2006 boolean_t avail_spare, l2cache, islog; 2007 uint64_t val; 2008 char *path, *newname; 2009 nvlist_t **child; 2010 uint_t children; 2011 nvlist_t *config_root; 2012 libzfs_handle_t *hdl = zhp->zpool_hdl; 2013 boolean_t rootpool = pool_is_bootable(zhp); 2014 2015 if (replacing) 2016 (void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN, 2017 "cannot replace %s with %s"), old_disk, new_disk); 2018 else 2019 (void) snprintf(msg, sizeof (msg), dgettext(TEXT_DOMAIN, 2020 "cannot attach %s to %s"), new_disk, old_disk); 2021 2022 /* 2023 * If this is a root pool, make sure that we're not attaching an 2024 * EFI labeled device. 2025 */ 2026 if (rootpool && pool_uses_efi(nvroot)) { 2027 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2028 "EFI labeled devices are not supported on root pools.")); 2029 return (zfs_error(hdl, EZFS_POOL_NOTSUP, msg)); 2030 } 2031 2032 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 2033 if ((tgt = zpool_find_vdev(zhp, old_disk, &avail_spare, &l2cache, 2034 &islog)) == 0) 2035 return (zfs_error(hdl, EZFS_NODEVICE, msg)); 2036 2037 if (avail_spare) 2038 return (zfs_error(hdl, EZFS_ISSPARE, msg)); 2039 2040 if (l2cache) 2041 return (zfs_error(hdl, EZFS_ISL2CACHE, msg)); 2042 2043 verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0); 2044 zc.zc_cookie = replacing; 2045 2046 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, 2047 &child, &children) != 0 || children != 1) { 2048 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2049 "new device must be a single disk")); 2050 return (zfs_error(hdl, EZFS_INVALCONFIG, msg)); 2051 } 2052 2053 verify(nvlist_lookup_nvlist(zpool_get_config(zhp, NULL), 2054 ZPOOL_CONFIG_VDEV_TREE, &config_root) == 0); 2055 2056 if ((newname = zpool_vdev_name(NULL, NULL, child[0])) == NULL) 2057 return (-1); 2058 2059 /* 2060 * If the target is a hot spare that has been swapped in, we can only 2061 * replace it with another hot spare. 2062 */ 2063 if (replacing && 2064 nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_IS_SPARE, &val) == 0 && 2065 (zpool_find_vdev(zhp, newname, &avail_spare, &l2cache, 2066 NULL) == NULL || !avail_spare) && 2067 is_replacing_spare(config_root, tgt, 1)) { 2068 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2069 "can only be replaced by another hot spare")); 2070 free(newname); 2071 return (zfs_error(hdl, EZFS_BADTARGET, msg)); 2072 } 2073 2074 /* 2075 * If we are attempting to replace a spare, it canot be applied to an 2076 * already spared device. 2077 */ 2078 if (replacing && 2079 nvlist_lookup_string(child[0], ZPOOL_CONFIG_PATH, &path) == 0 && 2080 zpool_find_vdev(zhp, newname, &avail_spare, 2081 &l2cache, NULL) != NULL && avail_spare && 2082 is_replacing_spare(config_root, tgt, 0)) { 2083 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2084 "device has already been replaced with a spare")); 2085 free(newname); 2086 return (zfs_error(hdl, EZFS_BADTARGET, msg)); 2087 } 2088 2089 free(newname); 2090 2091 if (zcmd_write_conf_nvlist(hdl, &zc, nvroot) != 0) 2092 return (-1); 2093 2094 ret = zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_VDEV_ATTACH, &zc); 2095 2096 zcmd_free_nvlists(&zc); 2097 2098 if (ret == 0) { 2099 if (rootpool) { 2100 /* 2101 * XXX - This should be removed once we can 2102 * automatically install the bootblocks on the 2103 * newly attached disk. 2104 */ 2105 (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Please " 2106 "be sure to invoke %s to make '%s' bootable.\n"), 2107 BOOTCMD, new_disk); 2108 2109 /* 2110 * XXX need a better way to prevent user from 2111 * booting up a half-baked vdev. 2112 */ 2113 (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "Make " 2114 "sure to wait until resilver is done " 2115 "before rebooting.\n")); 2116 } 2117 return (0); 2118 } 2119 2120 switch (errno) { 2121 case ENOTSUP: 2122 /* 2123 * Can't attach to or replace this type of vdev. 2124 */ 2125 if (replacing) { 2126 if (islog) 2127 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2128 "cannot replace a log with a spare")); 2129 else 2130 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2131 "cannot replace a replacing device")); 2132 } else { 2133 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2134 "can only attach to mirrors and top-level " 2135 "disks")); 2136 } 2137 (void) zfs_error(hdl, EZFS_BADTARGET, msg); 2138 break; 2139 2140 case EINVAL: 2141 /* 2142 * The new device must be a single disk. 2143 */ 2144 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2145 "new device must be a single disk")); 2146 (void) zfs_error(hdl, EZFS_INVALCONFIG, msg); 2147 break; 2148 2149 case EBUSY: 2150 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "%s is busy"), 2151 new_disk); 2152 (void) zfs_error(hdl, EZFS_BADDEV, msg); 2153 break; 2154 2155 case EOVERFLOW: 2156 /* 2157 * The new device is too small. 2158 */ 2159 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2160 "device is too small")); 2161 (void) zfs_error(hdl, EZFS_BADDEV, msg); 2162 break; 2163 2164 case EDOM: 2165 /* 2166 * The new device has a different alignment requirement. 2167 */ 2168 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2169 "devices have different sector alignment")); 2170 (void) zfs_error(hdl, EZFS_BADDEV, msg); 2171 break; 2172 2173 case ENAMETOOLONG: 2174 /* 2175 * The resulting top-level vdev spec won't fit in the label. 2176 */ 2177 (void) zfs_error(hdl, EZFS_DEVOVERFLOW, msg); 2178 break; 2179 2180 default: 2181 (void) zpool_standard_error(hdl, errno, msg); 2182 } 2183 2184 return (-1); 2185 } 2186 2187 /* 2188 * Detach the specified device. 2189 */ 2190 int 2191 zpool_vdev_detach(zpool_handle_t *zhp, const char *path) 2192 { 2193 zfs_cmd_t zc = { 0 }; 2194 char msg[1024]; 2195 nvlist_t *tgt; 2196 boolean_t avail_spare, l2cache; 2197 libzfs_handle_t *hdl = zhp->zpool_hdl; 2198 2199 (void) snprintf(msg, sizeof (msg), 2200 dgettext(TEXT_DOMAIN, "cannot detach %s"), path); 2201 2202 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 2203 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 2204 NULL)) == 0) 2205 return (zfs_error(hdl, EZFS_NODEVICE, msg)); 2206 2207 if (avail_spare) 2208 return (zfs_error(hdl, EZFS_ISSPARE, msg)); 2209 2210 if (l2cache) 2211 return (zfs_error(hdl, EZFS_ISL2CACHE, msg)); 2212 2213 verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0); 2214 2215 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_DETACH, &zc) == 0) 2216 return (0); 2217 2218 switch (errno) { 2219 2220 case ENOTSUP: 2221 /* 2222 * Can't detach from this type of vdev. 2223 */ 2224 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "only " 2225 "applicable to mirror and replacing vdevs")); 2226 (void) zfs_error(zhp->zpool_hdl, EZFS_BADTARGET, msg); 2227 break; 2228 2229 case EBUSY: 2230 /* 2231 * There are no other replicas of this device. 2232 */ 2233 (void) zfs_error(hdl, EZFS_NOREPLICAS, msg); 2234 break; 2235 2236 default: 2237 (void) zpool_standard_error(hdl, errno, msg); 2238 } 2239 2240 return (-1); 2241 } 2242 2243 /* 2244 * Remove the given device. Currently, this is supported only for hot spares 2245 * and level 2 cache devices. 2246 */ 2247 int 2248 zpool_vdev_remove(zpool_handle_t *zhp, const char *path) 2249 { 2250 zfs_cmd_t zc = { 0 }; 2251 char msg[1024]; 2252 nvlist_t *tgt; 2253 boolean_t avail_spare, l2cache; 2254 libzfs_handle_t *hdl = zhp->zpool_hdl; 2255 2256 (void) snprintf(msg, sizeof (msg), 2257 dgettext(TEXT_DOMAIN, "cannot remove %s"), path); 2258 2259 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 2260 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 2261 NULL)) == 0) 2262 return (zfs_error(hdl, EZFS_NODEVICE, msg)); 2263 2264 if (!avail_spare && !l2cache) { 2265 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2266 "only inactive hot spares or cache devices " 2267 "can be removed")); 2268 return (zfs_error(hdl, EZFS_NODEVICE, msg)); 2269 } 2270 2271 verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, &zc.zc_guid) == 0); 2272 2273 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_REMOVE, &zc) == 0) 2274 return (0); 2275 2276 return (zpool_standard_error(hdl, errno, msg)); 2277 } 2278 2279 /* 2280 * Clear the errors for the pool, or the particular device if specified. 2281 */ 2282 int 2283 zpool_clear(zpool_handle_t *zhp, const char *path) 2284 { 2285 zfs_cmd_t zc = { 0 }; 2286 char msg[1024]; 2287 nvlist_t *tgt; 2288 boolean_t avail_spare, l2cache; 2289 libzfs_handle_t *hdl = zhp->zpool_hdl; 2290 2291 if (path) 2292 (void) snprintf(msg, sizeof (msg), 2293 dgettext(TEXT_DOMAIN, "cannot clear errors for %s"), 2294 path); 2295 else 2296 (void) snprintf(msg, sizeof (msg), 2297 dgettext(TEXT_DOMAIN, "cannot clear errors for %s"), 2298 zhp->zpool_name); 2299 2300 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 2301 if (path) { 2302 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, 2303 &l2cache, NULL)) == 0) 2304 return (zfs_error(hdl, EZFS_NODEVICE, msg)); 2305 2306 /* 2307 * Don't allow error clearing for hot spares. Do allow 2308 * error clearing for l2cache devices. 2309 */ 2310 if (avail_spare) 2311 return (zfs_error(hdl, EZFS_ISSPARE, msg)); 2312 2313 verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID, 2314 &zc.zc_guid) == 0); 2315 } 2316 2317 if (zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc) == 0) 2318 return (0); 2319 2320 return (zpool_standard_error(hdl, errno, msg)); 2321 } 2322 2323 /* 2324 * Similar to zpool_clear(), but takes a GUID (used by fmd). 2325 */ 2326 int 2327 zpool_vdev_clear(zpool_handle_t *zhp, uint64_t guid) 2328 { 2329 zfs_cmd_t zc = { 0 }; 2330 char msg[1024]; 2331 libzfs_handle_t *hdl = zhp->zpool_hdl; 2332 2333 (void) snprintf(msg, sizeof (msg), 2334 dgettext(TEXT_DOMAIN, "cannot clear errors for %llx"), 2335 guid); 2336 2337 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 2338 zc.zc_guid = guid; 2339 2340 if (ioctl(hdl->libzfs_fd, ZFS_IOC_CLEAR, &zc) == 0) 2341 return (0); 2342 2343 return (zpool_standard_error(hdl, errno, msg)); 2344 } 2345 2346 /* 2347 * Iterate over all zvols in a given pool by walking the /dev/zvol/dsk/<pool> 2348 * hierarchy. 2349 */ 2350 int 2351 zpool_iter_zvol(zpool_handle_t *zhp, int (*cb)(const char *, void *), 2352 void *data) 2353 { 2354 libzfs_handle_t *hdl = zhp->zpool_hdl; 2355 char (*paths)[MAXPATHLEN]; 2356 size_t size = 4; 2357 int curr, fd, base, ret = 0; 2358 DIR *dirp; 2359 struct dirent *dp; 2360 struct stat st; 2361 2362 if ((base = open("/dev/zvol/dsk", O_RDONLY)) < 0) 2363 return (errno == ENOENT ? 0 : -1); 2364 2365 if (fstatat(base, zhp->zpool_name, &st, 0) != 0) { 2366 int err = errno; 2367 (void) close(base); 2368 return (err == ENOENT ? 0 : -1); 2369 } 2370 2371 /* 2372 * Oddly this wasn't a directory -- ignore that failure since we 2373 * know there are no links lower in the (non-existant) hierarchy. 2374 */ 2375 if (!S_ISDIR(st.st_mode)) { 2376 (void) close(base); 2377 return (0); 2378 } 2379 2380 if ((paths = zfs_alloc(hdl, size * sizeof (paths[0]))) == NULL) { 2381 (void) close(base); 2382 return (-1); 2383 } 2384 2385 (void) strlcpy(paths[0], zhp->zpool_name, sizeof (paths[0])); 2386 curr = 0; 2387 2388 while (curr >= 0) { 2389 if (fstatat(base, paths[curr], &st, AT_SYMLINK_NOFOLLOW) != 0) 2390 goto err; 2391 2392 if (S_ISDIR(st.st_mode)) { 2393 if ((fd = openat(base, paths[curr], O_RDONLY)) < 0) 2394 goto err; 2395 2396 if ((dirp = fdopendir(fd)) == NULL) { 2397 (void) close(fd); 2398 goto err; 2399 } 2400 2401 while ((dp = readdir(dirp)) != NULL) { 2402 if (dp->d_name[0] == '.') 2403 continue; 2404 2405 if (curr + 1 == size) { 2406 paths = zfs_realloc(hdl, paths, 2407 size * sizeof (paths[0]), 2408 size * 2 * sizeof (paths[0])); 2409 if (paths == NULL) { 2410 (void) closedir(dirp); 2411 (void) close(fd); 2412 goto err; 2413 } 2414 2415 size *= 2; 2416 } 2417 2418 (void) strlcpy(paths[curr + 1], paths[curr], 2419 sizeof (paths[curr + 1])); 2420 (void) strlcat(paths[curr], "/", 2421 sizeof (paths[curr])); 2422 (void) strlcat(paths[curr], dp->d_name, 2423 sizeof (paths[curr])); 2424 curr++; 2425 } 2426 2427 (void) closedir(dirp); 2428 2429 } else { 2430 if ((ret = cb(paths[curr], data)) != 0) 2431 break; 2432 } 2433 2434 curr--; 2435 } 2436 2437 free(paths); 2438 (void) close(base); 2439 2440 return (ret); 2441 2442 err: 2443 free(paths); 2444 (void) close(base); 2445 return (-1); 2446 } 2447 2448 typedef struct zvol_cb { 2449 zpool_handle_t *zcb_pool; 2450 boolean_t zcb_create; 2451 } zvol_cb_t; 2452 2453 /*ARGSUSED*/ 2454 static int 2455 do_zvol_create(zfs_handle_t *zhp, void *data) 2456 { 2457 int ret = 0; 2458 2459 if (ZFS_IS_VOLUME(zhp)) { 2460 (void) zvol_create_link(zhp->zfs_hdl, zhp->zfs_name); 2461 ret = zfs_iter_snapshots(zhp, do_zvol_create, NULL); 2462 } 2463 2464 if (ret == 0) 2465 ret = zfs_iter_filesystems(zhp, do_zvol_create, NULL); 2466 2467 zfs_close(zhp); 2468 2469 return (ret); 2470 } 2471 2472 /* 2473 * Iterate over all zvols in the pool and make any necessary minor nodes. 2474 */ 2475 int 2476 zpool_create_zvol_links(zpool_handle_t *zhp) 2477 { 2478 zfs_handle_t *zfp; 2479 int ret; 2480 2481 /* 2482 * If the pool is unavailable, just return success. 2483 */ 2484 if ((zfp = make_dataset_handle(zhp->zpool_hdl, 2485 zhp->zpool_name)) == NULL) 2486 return (0); 2487 2488 ret = zfs_iter_filesystems(zfp, do_zvol_create, NULL); 2489 2490 zfs_close(zfp); 2491 return (ret); 2492 } 2493 2494 static int 2495 do_zvol_remove(const char *dataset, void *data) 2496 { 2497 zpool_handle_t *zhp = data; 2498 2499 return (zvol_remove_link(zhp->zpool_hdl, dataset)); 2500 } 2501 2502 /* 2503 * Iterate over all zvols in the pool and remove any minor nodes. We iterate 2504 * by examining the /dev links so that a corrupted pool doesn't impede this 2505 * operation. 2506 */ 2507 int 2508 zpool_remove_zvol_links(zpool_handle_t *zhp) 2509 { 2510 return (zpool_iter_zvol(zhp, do_zvol_remove, zhp)); 2511 } 2512 2513 /* 2514 * Convert from a devid string to a path. 2515 */ 2516 static char * 2517 devid_to_path(char *devid_str) 2518 { 2519 ddi_devid_t devid; 2520 char *minor; 2521 char *path; 2522 devid_nmlist_t *list = NULL; 2523 int ret; 2524 2525 if (devid_str_decode(devid_str, &devid, &minor) != 0) 2526 return (NULL); 2527 2528 ret = devid_deviceid_to_nmlist("/dev", devid, minor, &list); 2529 2530 devid_str_free(minor); 2531 devid_free(devid); 2532 2533 if (ret != 0) 2534 return (NULL); 2535 2536 if ((path = strdup(list[0].devname)) == NULL) 2537 return (NULL); 2538 2539 devid_free_nmlist(list); 2540 2541 return (path); 2542 } 2543 2544 /* 2545 * Convert from a path to a devid string. 2546 */ 2547 static char * 2548 path_to_devid(const char *path) 2549 { 2550 int fd; 2551 ddi_devid_t devid; 2552 char *minor, *ret; 2553 2554 if ((fd = open(path, O_RDONLY)) < 0) 2555 return (NULL); 2556 2557 minor = NULL; 2558 ret = NULL; 2559 if (devid_get(fd, &devid) == 0) { 2560 if (devid_get_minor_name(fd, &minor) == 0) 2561 ret = devid_str_encode(devid, minor); 2562 if (minor != NULL) 2563 devid_str_free(minor); 2564 devid_free(devid); 2565 } 2566 (void) close(fd); 2567 2568 return (ret); 2569 } 2570 2571 /* 2572 * Issue the necessary ioctl() to update the stored path value for the vdev. We 2573 * ignore any failure here, since a common case is for an unprivileged user to 2574 * type 'zpool status', and we'll display the correct information anyway. 2575 */ 2576 static void 2577 set_path(zpool_handle_t *zhp, nvlist_t *nv, const char *path) 2578 { 2579 zfs_cmd_t zc = { 0 }; 2580 2581 (void) strncpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 2582 (void) strncpy(zc.zc_value, path, sizeof (zc.zc_value)); 2583 verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, 2584 &zc.zc_guid) == 0); 2585 2586 (void) ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_VDEV_SETPATH, &zc); 2587 } 2588 2589 /* 2590 * Given a vdev, return the name to display in iostat. If the vdev has a path, 2591 * we use that, stripping off any leading "/dev/dsk/"; if not, we use the type. 2592 * We also check if this is a whole disk, in which case we strip off the 2593 * trailing 's0' slice name. 2594 * 2595 * This routine is also responsible for identifying when disks have been 2596 * reconfigured in a new location. The kernel will have opened the device by 2597 * devid, but the path will still refer to the old location. To catch this, we 2598 * first do a path -> devid translation (which is fast for the common case). If 2599 * the devid matches, we're done. If not, we do a reverse devid -> path 2600 * translation and issue the appropriate ioctl() to update the path of the vdev. 2601 * If 'zhp' is NULL, then this is an exported pool, and we don't need to do any 2602 * of these checks. 2603 */ 2604 char * 2605 zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv) 2606 { 2607 char *path, *devid; 2608 uint64_t value; 2609 char buf[64]; 2610 vdev_stat_t *vs; 2611 uint_t vsc; 2612 2613 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT, 2614 &value) == 0) { 2615 verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, 2616 &value) == 0); 2617 (void) snprintf(buf, sizeof (buf), "%llu", 2618 (u_longlong_t)value); 2619 path = buf; 2620 } else if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0) { 2621 2622 /* 2623 * If the device is dead (faulted, offline, etc) then don't 2624 * bother opening it. Otherwise we may be forcing the user to 2625 * open a misbehaving device, which can have undesirable 2626 * effects. 2627 */ 2628 if ((nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_STATS, 2629 (uint64_t **)&vs, &vsc) != 0 || 2630 vs->vs_state >= VDEV_STATE_DEGRADED) && 2631 zhp != NULL && 2632 nvlist_lookup_string(nv, ZPOOL_CONFIG_DEVID, &devid) == 0) { 2633 /* 2634 * Determine if the current path is correct. 2635 */ 2636 char *newdevid = path_to_devid(path); 2637 2638 if (newdevid == NULL || 2639 strcmp(devid, newdevid) != 0) { 2640 char *newpath; 2641 2642 if ((newpath = devid_to_path(devid)) != NULL) { 2643 /* 2644 * Update the path appropriately. 2645 */ 2646 set_path(zhp, nv, newpath); 2647 if (nvlist_add_string(nv, 2648 ZPOOL_CONFIG_PATH, newpath) == 0) 2649 verify(nvlist_lookup_string(nv, 2650 ZPOOL_CONFIG_PATH, 2651 &path) == 0); 2652 free(newpath); 2653 } 2654 } 2655 2656 if (newdevid) 2657 devid_str_free(newdevid); 2658 } 2659 2660 if (strncmp(path, "/dev/dsk/", 9) == 0) 2661 path += 9; 2662 2663 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, 2664 &value) == 0 && value) { 2665 char *tmp = zfs_strdup(hdl, path); 2666 if (tmp == NULL) 2667 return (NULL); 2668 tmp[strlen(path) - 2] = '\0'; 2669 return (tmp); 2670 } 2671 } else { 2672 verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &path) == 0); 2673 2674 /* 2675 * If it's a raidz device, we need to stick in the parity level. 2676 */ 2677 if (strcmp(path, VDEV_TYPE_RAIDZ) == 0) { 2678 verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NPARITY, 2679 &value) == 0); 2680 (void) snprintf(buf, sizeof (buf), "%s%llu", path, 2681 (u_longlong_t)value); 2682 path = buf; 2683 } 2684 } 2685 2686 return (zfs_strdup(hdl, path)); 2687 } 2688 2689 static int 2690 zbookmark_compare(const void *a, const void *b) 2691 { 2692 return (memcmp(a, b, sizeof (zbookmark_t))); 2693 } 2694 2695 /* 2696 * Retrieve the persistent error log, uniquify the members, and return to the 2697 * caller. 2698 */ 2699 int 2700 zpool_get_errlog(zpool_handle_t *zhp, nvlist_t **nverrlistp) 2701 { 2702 zfs_cmd_t zc = { 0 }; 2703 uint64_t count; 2704 zbookmark_t *zb = NULL; 2705 int i; 2706 2707 /* 2708 * Retrieve the raw error list from the kernel. If the number of errors 2709 * has increased, allocate more space and continue until we get the 2710 * entire list. 2711 */ 2712 verify(nvlist_lookup_uint64(zhp->zpool_config, ZPOOL_CONFIG_ERRCOUNT, 2713 &count) == 0); 2714 if (count == 0) 2715 return (0); 2716 if ((zc.zc_nvlist_dst = (uintptr_t)zfs_alloc(zhp->zpool_hdl, 2717 count * sizeof (zbookmark_t))) == (uintptr_t)NULL) 2718 return (-1); 2719 zc.zc_nvlist_dst_size = count; 2720 (void) strcpy(zc.zc_name, zhp->zpool_name); 2721 for (;;) { 2722 if (ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_ERROR_LOG, 2723 &zc) != 0) { 2724 free((void *)(uintptr_t)zc.zc_nvlist_dst); 2725 if (errno == ENOMEM) { 2726 count = zc.zc_nvlist_dst_size; 2727 if ((zc.zc_nvlist_dst = (uintptr_t) 2728 zfs_alloc(zhp->zpool_hdl, count * 2729 sizeof (zbookmark_t))) == (uintptr_t)NULL) 2730 return (-1); 2731 } else { 2732 return (-1); 2733 } 2734 } else { 2735 break; 2736 } 2737 } 2738 2739 /* 2740 * Sort the resulting bookmarks. This is a little confusing due to the 2741 * implementation of ZFS_IOC_ERROR_LOG. The bookmarks are copied last 2742 * to first, and 'zc_nvlist_dst_size' indicates the number of boomarks 2743 * _not_ copied as part of the process. So we point the start of our 2744 * array appropriate and decrement the total number of elements. 2745 */ 2746 zb = ((zbookmark_t *)(uintptr_t)zc.zc_nvlist_dst) + 2747 zc.zc_nvlist_dst_size; 2748 count -= zc.zc_nvlist_dst_size; 2749 2750 qsort(zb, count, sizeof (zbookmark_t), zbookmark_compare); 2751 2752 verify(nvlist_alloc(nverrlistp, 0, KM_SLEEP) == 0); 2753 2754 /* 2755 * Fill in the nverrlistp with nvlist's of dataset and object numbers. 2756 */ 2757 for (i = 0; i < count; i++) { 2758 nvlist_t *nv; 2759 2760 /* ignoring zb_blkid and zb_level for now */ 2761 if (i > 0 && zb[i-1].zb_objset == zb[i].zb_objset && 2762 zb[i-1].zb_object == zb[i].zb_object) 2763 continue; 2764 2765 if (nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) != 0) 2766 goto nomem; 2767 if (nvlist_add_uint64(nv, ZPOOL_ERR_DATASET, 2768 zb[i].zb_objset) != 0) { 2769 nvlist_free(nv); 2770 goto nomem; 2771 } 2772 if (nvlist_add_uint64(nv, ZPOOL_ERR_OBJECT, 2773 zb[i].zb_object) != 0) { 2774 nvlist_free(nv); 2775 goto nomem; 2776 } 2777 if (nvlist_add_nvlist(*nverrlistp, "ejk", nv) != 0) { 2778 nvlist_free(nv); 2779 goto nomem; 2780 } 2781 nvlist_free(nv); 2782 } 2783 2784 free((void *)(uintptr_t)zc.zc_nvlist_dst); 2785 return (0); 2786 2787 nomem: 2788 free((void *)(uintptr_t)zc.zc_nvlist_dst); 2789 return (no_memory(zhp->zpool_hdl)); 2790 } 2791 2792 /* 2793 * Upgrade a ZFS pool to the latest on-disk version. 2794 */ 2795 int 2796 zpool_upgrade(zpool_handle_t *zhp, uint64_t new_version) 2797 { 2798 zfs_cmd_t zc = { 0 }; 2799 libzfs_handle_t *hdl = zhp->zpool_hdl; 2800 2801 (void) strcpy(zc.zc_name, zhp->zpool_name); 2802 zc.zc_cookie = new_version; 2803 2804 if (zfs_ioctl(hdl, ZFS_IOC_POOL_UPGRADE, &zc) != 0) 2805 return (zpool_standard_error_fmt(hdl, errno, 2806 dgettext(TEXT_DOMAIN, "cannot upgrade '%s'"), 2807 zhp->zpool_name)); 2808 return (0); 2809 } 2810 2811 void 2812 zpool_set_history_str(const char *subcommand, int argc, char **argv, 2813 char *history_str) 2814 { 2815 int i; 2816 2817 (void) strlcpy(history_str, subcommand, HIS_MAX_RECORD_LEN); 2818 for (i = 1; i < argc; i++) { 2819 if (strlen(history_str) + 1 + strlen(argv[i]) > 2820 HIS_MAX_RECORD_LEN) 2821 break; 2822 (void) strlcat(history_str, " ", HIS_MAX_RECORD_LEN); 2823 (void) strlcat(history_str, argv[i], HIS_MAX_RECORD_LEN); 2824 } 2825 } 2826 2827 /* 2828 * Stage command history for logging. 2829 */ 2830 int 2831 zpool_stage_history(libzfs_handle_t *hdl, const char *history_str) 2832 { 2833 if (history_str == NULL) 2834 return (EINVAL); 2835 2836 if (strlen(history_str) > HIS_MAX_RECORD_LEN) 2837 return (EINVAL); 2838 2839 if (hdl->libzfs_log_str != NULL) 2840 free(hdl->libzfs_log_str); 2841 2842 if ((hdl->libzfs_log_str = strdup(history_str)) == NULL) 2843 return (no_memory(hdl)); 2844 2845 return (0); 2846 } 2847 2848 /* 2849 * Perform ioctl to get some command history of a pool. 2850 * 2851 * 'buf' is the buffer to fill up to 'len' bytes. 'off' is the 2852 * logical offset of the history buffer to start reading from. 2853 * 2854 * Upon return, 'off' is the next logical offset to read from and 2855 * 'len' is the actual amount of bytes read into 'buf'. 2856 */ 2857 static int 2858 get_history(zpool_handle_t *zhp, char *buf, uint64_t *off, uint64_t *len) 2859 { 2860 zfs_cmd_t zc = { 0 }; 2861 libzfs_handle_t *hdl = zhp->zpool_hdl; 2862 2863 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 2864 2865 zc.zc_history = (uint64_t)(uintptr_t)buf; 2866 zc.zc_history_len = *len; 2867 zc.zc_history_offset = *off; 2868 2869 if (ioctl(hdl->libzfs_fd, ZFS_IOC_POOL_GET_HISTORY, &zc) != 0) { 2870 switch (errno) { 2871 case EPERM: 2872 return (zfs_error_fmt(hdl, EZFS_PERM, 2873 dgettext(TEXT_DOMAIN, 2874 "cannot show history for pool '%s'"), 2875 zhp->zpool_name)); 2876 case ENOENT: 2877 return (zfs_error_fmt(hdl, EZFS_NOHISTORY, 2878 dgettext(TEXT_DOMAIN, "cannot get history for pool " 2879 "'%s'"), zhp->zpool_name)); 2880 case ENOTSUP: 2881 return (zfs_error_fmt(hdl, EZFS_BADVERSION, 2882 dgettext(TEXT_DOMAIN, "cannot get history for pool " 2883 "'%s', pool must be upgraded"), zhp->zpool_name)); 2884 default: 2885 return (zpool_standard_error_fmt(hdl, errno, 2886 dgettext(TEXT_DOMAIN, 2887 "cannot get history for '%s'"), zhp->zpool_name)); 2888 } 2889 } 2890 2891 *len = zc.zc_history_len; 2892 *off = zc.zc_history_offset; 2893 2894 return (0); 2895 } 2896 2897 /* 2898 * Process the buffer of nvlists, unpacking and storing each nvlist record 2899 * into 'records'. 'leftover' is set to the number of bytes that weren't 2900 * processed as there wasn't a complete record. 2901 */ 2902 static int 2903 zpool_history_unpack(char *buf, uint64_t bytes_read, uint64_t *leftover, 2904 nvlist_t ***records, uint_t *numrecords) 2905 { 2906 uint64_t reclen; 2907 nvlist_t *nv; 2908 int i; 2909 2910 while (bytes_read > sizeof (reclen)) { 2911 2912 /* get length of packed record (stored as little endian) */ 2913 for (i = 0, reclen = 0; i < sizeof (reclen); i++) 2914 reclen += (uint64_t)(((uchar_t *)buf)[i]) << (8*i); 2915 2916 if (bytes_read < sizeof (reclen) + reclen) 2917 break; 2918 2919 /* unpack record */ 2920 if (nvlist_unpack(buf + sizeof (reclen), reclen, &nv, 0) != 0) 2921 return (ENOMEM); 2922 bytes_read -= sizeof (reclen) + reclen; 2923 buf += sizeof (reclen) + reclen; 2924 2925 /* add record to nvlist array */ 2926 (*numrecords)++; 2927 if (ISP2(*numrecords + 1)) { 2928 *records = realloc(*records, 2929 *numrecords * 2 * sizeof (nvlist_t *)); 2930 } 2931 (*records)[*numrecords - 1] = nv; 2932 } 2933 2934 *leftover = bytes_read; 2935 return (0); 2936 } 2937 2938 #define HIS_BUF_LEN (128*1024) 2939 2940 /* 2941 * Retrieve the command history of a pool. 2942 */ 2943 int 2944 zpool_get_history(zpool_handle_t *zhp, nvlist_t **nvhisp) 2945 { 2946 char buf[HIS_BUF_LEN]; 2947 uint64_t off = 0; 2948 nvlist_t **records = NULL; 2949 uint_t numrecords = 0; 2950 int err, i; 2951 2952 do { 2953 uint64_t bytes_read = sizeof (buf); 2954 uint64_t leftover; 2955 2956 if ((err = get_history(zhp, buf, &off, &bytes_read)) != 0) 2957 break; 2958 2959 /* if nothing else was read in, we're at EOF, just return */ 2960 if (!bytes_read) 2961 break; 2962 2963 if ((err = zpool_history_unpack(buf, bytes_read, 2964 &leftover, &records, &numrecords)) != 0) 2965 break; 2966 off -= leftover; 2967 2968 /* CONSTCOND */ 2969 } while (1); 2970 2971 if (!err) { 2972 verify(nvlist_alloc(nvhisp, NV_UNIQUE_NAME, 0) == 0); 2973 verify(nvlist_add_nvlist_array(*nvhisp, ZPOOL_HIST_RECORD, 2974 records, numrecords) == 0); 2975 } 2976 for (i = 0; i < numrecords; i++) 2977 nvlist_free(records[i]); 2978 free(records); 2979 2980 return (err); 2981 } 2982 2983 void 2984 zpool_obj_to_path(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj, 2985 char *pathname, size_t len) 2986 { 2987 zfs_cmd_t zc = { 0 }; 2988 boolean_t mounted = B_FALSE; 2989 char *mntpnt = NULL; 2990 char dsname[MAXNAMELEN]; 2991 2992 if (dsobj == 0) { 2993 /* special case for the MOS */ 2994 (void) snprintf(pathname, len, "<metadata>:<0x%llx>", obj); 2995 return; 2996 } 2997 2998 /* get the dataset's name */ 2999 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3000 zc.zc_obj = dsobj; 3001 if (ioctl(zhp->zpool_hdl->libzfs_fd, 3002 ZFS_IOC_DSOBJ_TO_DSNAME, &zc) != 0) { 3003 /* just write out a path of two object numbers */ 3004 (void) snprintf(pathname, len, "<0x%llx>:<0x%llx>", 3005 dsobj, obj); 3006 return; 3007 } 3008 (void) strlcpy(dsname, zc.zc_value, sizeof (dsname)); 3009 3010 /* find out if the dataset is mounted */ 3011 mounted = is_mounted(zhp->zpool_hdl, dsname, &mntpnt); 3012 3013 /* get the corrupted object's path */ 3014 (void) strlcpy(zc.zc_name, dsname, sizeof (zc.zc_name)); 3015 zc.zc_obj = obj; 3016 if (ioctl(zhp->zpool_hdl->libzfs_fd, ZFS_IOC_OBJ_TO_PATH, 3017 &zc) == 0) { 3018 if (mounted) { 3019 (void) snprintf(pathname, len, "%s%s", mntpnt, 3020 zc.zc_value); 3021 } else { 3022 (void) snprintf(pathname, len, "%s:%s", 3023 dsname, zc.zc_value); 3024 } 3025 } else { 3026 (void) snprintf(pathname, len, "%s:<0x%llx>", dsname, obj); 3027 } 3028 free(mntpnt); 3029 } 3030 3031 /* 3032 * Read the EFI label from the config, if a label does not exist then 3033 * pass back the error to the caller. If the caller has passed a non-NULL 3034 * diskaddr argument then we set it to the starting address of the EFI 3035 * partition. 3036 */ 3037 static int 3038 read_efi_label(nvlist_t *config, diskaddr_t *sb) 3039 { 3040 char *path; 3041 int fd; 3042 char diskname[MAXPATHLEN]; 3043 int err = -1; 3044 3045 if (nvlist_lookup_string(config, ZPOOL_CONFIG_PATH, &path) != 0) 3046 return (err); 3047 3048 (void) snprintf(diskname, sizeof (diskname), "%s%s", RDISK_ROOT, 3049 strrchr(path, '/')); 3050 if ((fd = open(diskname, O_RDONLY|O_NDELAY)) >= 0) { 3051 struct dk_gpt *vtoc; 3052 3053 if ((err = efi_alloc_and_read(fd, &vtoc)) >= 0) { 3054 if (sb != NULL) 3055 *sb = vtoc->efi_parts[0].p_start; 3056 efi_free(vtoc); 3057 } 3058 (void) close(fd); 3059 } 3060 return (err); 3061 } 3062 3063 /* 3064 * determine where a partition starts on a disk in the current 3065 * configuration 3066 */ 3067 static diskaddr_t 3068 find_start_block(nvlist_t *config) 3069 { 3070 nvlist_t **child; 3071 uint_t c, children; 3072 diskaddr_t sb = MAXOFFSET_T; 3073 uint64_t wholedisk; 3074 3075 if (nvlist_lookup_nvlist_array(config, 3076 ZPOOL_CONFIG_CHILDREN, &child, &children) != 0) { 3077 if (nvlist_lookup_uint64(config, 3078 ZPOOL_CONFIG_WHOLE_DISK, 3079 &wholedisk) != 0 || !wholedisk) { 3080 return (MAXOFFSET_T); 3081 } 3082 if (read_efi_label(config, &sb) < 0) 3083 sb = MAXOFFSET_T; 3084 return (sb); 3085 } 3086 3087 for (c = 0; c < children; c++) { 3088 sb = find_start_block(child[c]); 3089 if (sb != MAXOFFSET_T) { 3090 return (sb); 3091 } 3092 } 3093 return (MAXOFFSET_T); 3094 } 3095 3096 /* 3097 * Label an individual disk. The name provided is the short name, 3098 * stripped of any leading /dev path. 3099 */ 3100 int 3101 zpool_label_disk(libzfs_handle_t *hdl, zpool_handle_t *zhp, char *name) 3102 { 3103 char path[MAXPATHLEN]; 3104 struct dk_gpt *vtoc; 3105 int fd; 3106 size_t resv = EFI_MIN_RESV_SIZE; 3107 uint64_t slice_size; 3108 diskaddr_t start_block; 3109 char errbuf[1024]; 3110 3111 /* prepare an error message just in case */ 3112 (void) snprintf(errbuf, sizeof (errbuf), 3113 dgettext(TEXT_DOMAIN, "cannot label '%s'"), name); 3114 3115 if (zhp) { 3116 nvlist_t *nvroot; 3117 3118 if (pool_is_bootable(zhp)) { 3119 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3120 "EFI labeled devices are not supported on root " 3121 "pools.")); 3122 return (zfs_error(hdl, EZFS_POOL_NOTSUP, errbuf)); 3123 } 3124 3125 verify(nvlist_lookup_nvlist(zhp->zpool_config, 3126 ZPOOL_CONFIG_VDEV_TREE, &nvroot) == 0); 3127 3128 if (zhp->zpool_start_block == 0) 3129 start_block = find_start_block(nvroot); 3130 else 3131 start_block = zhp->zpool_start_block; 3132 zhp->zpool_start_block = start_block; 3133 } else { 3134 /* new pool */ 3135 start_block = NEW_START_BLOCK; 3136 } 3137 3138 (void) snprintf(path, sizeof (path), "%s/%s%s", RDISK_ROOT, name, 3139 BACKUP_SLICE); 3140 3141 if ((fd = open(path, O_RDWR | O_NDELAY)) < 0) { 3142 /* 3143 * This shouldn't happen. We've long since verified that this 3144 * is a valid device. 3145 */ 3146 zfs_error_aux(hdl, 3147 dgettext(TEXT_DOMAIN, "unable to open device")); 3148 return (zfs_error(hdl, EZFS_OPENFAILED, errbuf)); 3149 } 3150 3151 if (efi_alloc_and_init(fd, EFI_NUMPAR, &vtoc) != 0) { 3152 /* 3153 * The only way this can fail is if we run out of memory, or we 3154 * were unable to read the disk's capacity 3155 */ 3156 if (errno == ENOMEM) 3157 (void) no_memory(hdl); 3158 3159 (void) close(fd); 3160 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3161 "unable to read disk capacity"), name); 3162 3163 return (zfs_error(hdl, EZFS_NOCAP, errbuf)); 3164 } 3165 3166 slice_size = vtoc->efi_last_u_lba + 1; 3167 slice_size -= EFI_MIN_RESV_SIZE; 3168 if (start_block == MAXOFFSET_T) 3169 start_block = NEW_START_BLOCK; 3170 slice_size -= start_block; 3171 3172 vtoc->efi_parts[0].p_start = start_block; 3173 vtoc->efi_parts[0].p_size = slice_size; 3174 3175 /* 3176 * Why we use V_USR: V_BACKUP confuses users, and is considered 3177 * disposable by some EFI utilities (since EFI doesn't have a backup 3178 * slice). V_UNASSIGNED is supposed to be used only for zero size 3179 * partitions, and efi_write() will fail if we use it. V_ROOT, V_BOOT, 3180 * etc. were all pretty specific. V_USR is as close to reality as we 3181 * can get, in the absence of V_OTHER. 3182 */ 3183 vtoc->efi_parts[0].p_tag = V_USR; 3184 (void) strcpy(vtoc->efi_parts[0].p_name, "zfs"); 3185 3186 vtoc->efi_parts[8].p_start = slice_size + start_block; 3187 vtoc->efi_parts[8].p_size = resv; 3188 vtoc->efi_parts[8].p_tag = V_RESERVED; 3189 3190 if (efi_write(fd, vtoc) != 0) { 3191 /* 3192 * Some block drivers (like pcata) may not support EFI 3193 * GPT labels. Print out a helpful error message dir- 3194 * ecting the user to manually label the disk and give 3195 * a specific slice. 3196 */ 3197 (void) close(fd); 3198 efi_free(vtoc); 3199 3200 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3201 "try using fdisk(1M) and then provide a specific slice")); 3202 return (zfs_error(hdl, EZFS_LABELFAILED, errbuf)); 3203 } 3204 3205 (void) close(fd); 3206 efi_free(vtoc); 3207 return (0); 3208 } 3209 3210 static boolean_t 3211 supported_dump_vdev_type(libzfs_handle_t *hdl, nvlist_t *config, char *errbuf) 3212 { 3213 char *type; 3214 nvlist_t **child; 3215 uint_t children, c; 3216 3217 verify(nvlist_lookup_string(config, ZPOOL_CONFIG_TYPE, &type) == 0); 3218 if (strcmp(type, VDEV_TYPE_RAIDZ) == 0 || 3219 strcmp(type, VDEV_TYPE_FILE) == 0 || 3220 strcmp(type, VDEV_TYPE_LOG) == 0 || 3221 strcmp(type, VDEV_TYPE_MISSING) == 0) { 3222 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3223 "vdev type '%s' is not supported"), type); 3224 (void) zfs_error(hdl, EZFS_VDEVNOTSUP, errbuf); 3225 return (B_FALSE); 3226 } 3227 if (nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_CHILDREN, 3228 &child, &children) == 0) { 3229 for (c = 0; c < children; c++) { 3230 if (!supported_dump_vdev_type(hdl, child[c], errbuf)) 3231 return (B_FALSE); 3232 } 3233 } 3234 return (B_TRUE); 3235 } 3236 3237 /* 3238 * check if this zvol is allowable for use as a dump device; zero if 3239 * it is, > 0 if it isn't, < 0 if it isn't a zvol 3240 */ 3241 int 3242 zvol_check_dump_config(char *arg) 3243 { 3244 zpool_handle_t *zhp = NULL; 3245 nvlist_t *config, *nvroot; 3246 char *p, *volname; 3247 nvlist_t **top; 3248 uint_t toplevels; 3249 libzfs_handle_t *hdl; 3250 char errbuf[1024]; 3251 char poolname[ZPOOL_MAXNAMELEN]; 3252 int pathlen = strlen(ZVOL_FULL_DEV_DIR); 3253 int ret = 1; 3254 3255 if (strncmp(arg, ZVOL_FULL_DEV_DIR, pathlen)) { 3256 return (-1); 3257 } 3258 3259 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3260 "dump is not supported on device '%s'"), arg); 3261 3262 if ((hdl = libzfs_init()) == NULL) 3263 return (1); 3264 libzfs_print_on_error(hdl, B_TRUE); 3265 3266 volname = arg + pathlen; 3267 3268 /* check the configuration of the pool */ 3269 if ((p = strchr(volname, '/')) == NULL) { 3270 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3271 "malformed dataset name")); 3272 (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 3273 return (1); 3274 } else if (p - volname >= ZFS_MAXNAMELEN) { 3275 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3276 "dataset name is too long")); 3277 (void) zfs_error(hdl, EZFS_NAMETOOLONG, errbuf); 3278 return (1); 3279 } else { 3280 (void) strncpy(poolname, volname, p - volname); 3281 poolname[p - volname] = '\0'; 3282 } 3283 3284 if ((zhp = zpool_open(hdl, poolname)) == NULL) { 3285 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3286 "could not open pool '%s'"), poolname); 3287 (void) zfs_error(hdl, EZFS_OPENFAILED, errbuf); 3288 goto out; 3289 } 3290 config = zpool_get_config(zhp, NULL); 3291 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 3292 &nvroot) != 0) { 3293 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3294 "could not obtain vdev configuration for '%s'"), poolname); 3295 (void) zfs_error(hdl, EZFS_INVALCONFIG, errbuf); 3296 goto out; 3297 } 3298 3299 verify(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, 3300 &top, &toplevels) == 0); 3301 if (toplevels != 1) { 3302 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3303 "'%s' has multiple top level vdevs"), poolname); 3304 (void) zfs_error(hdl, EZFS_DEVOVERFLOW, errbuf); 3305 goto out; 3306 } 3307 3308 if (!supported_dump_vdev_type(hdl, top[0], errbuf)) { 3309 goto out; 3310 } 3311 ret = 0; 3312 3313 out: 3314 if (zhp) 3315 zpool_close(zhp); 3316 libzfs_fini(hdl); 3317 return (ret); 3318 } 3319