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 https://opensource.org/licenses/CDDL-1.0. 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 2015 Nexenta Systems, Inc. All rights reserved. 24 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 25 * Copyright (c) 2011, 2020 by Delphix. All rights reserved. 26 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com> 27 * Copyright (c) 2018 Datto Inc. 28 * Copyright (c) 2017 Open-E, Inc. All Rights Reserved. 29 * Copyright (c) 2017, Intel Corporation. 30 * Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com> 31 * Copyright (c) 2021, Colm Buckley <colm@tuatha.org> 32 * Copyright (c) 2021, 2023, Klara Inc. 33 */ 34 35 #include <errno.h> 36 #include <libintl.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <strings.h> 40 #include <unistd.h> 41 #include <libgen.h> 42 #include <zone.h> 43 #include <sys/stat.h> 44 #include <sys/efi_partition.h> 45 #include <sys/systeminfo.h> 46 #include <sys/zfs_ioctl.h> 47 #include <sys/zfs_sysfs.h> 48 #include <sys/vdev_disk.h> 49 #include <sys/types.h> 50 #include <dlfcn.h> 51 #include <libzutil.h> 52 #include <fcntl.h> 53 54 #include "zfs_namecheck.h" 55 #include "zfs_prop.h" 56 #include "libzfs_impl.h" 57 #include "zfs_comutil.h" 58 #include "zfeature_common.h" 59 60 static boolean_t zpool_vdev_is_interior(const char *name); 61 62 typedef struct prop_flags { 63 unsigned int create:1; /* Validate property on creation */ 64 unsigned int import:1; /* Validate property on import */ 65 unsigned int vdevprop:1; /* Validate property as a VDEV property */ 66 } prop_flags_t; 67 68 /* 69 * ==================================================================== 70 * zpool property functions 71 * ==================================================================== 72 */ 73 74 static int 75 zpool_get_all_props(zpool_handle_t *zhp) 76 { 77 zfs_cmd_t zc = {"\0"}; 78 libzfs_handle_t *hdl = zhp->zpool_hdl; 79 80 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 81 82 zcmd_alloc_dst_nvlist(hdl, &zc, 0); 83 84 while (zfs_ioctl(hdl, ZFS_IOC_POOL_GET_PROPS, &zc) != 0) { 85 if (errno == ENOMEM) 86 zcmd_expand_dst_nvlist(hdl, &zc); 87 else { 88 zcmd_free_nvlists(&zc); 89 return (-1); 90 } 91 } 92 93 if (zcmd_read_dst_nvlist(hdl, &zc, &zhp->zpool_props) != 0) { 94 zcmd_free_nvlists(&zc); 95 return (-1); 96 } 97 98 zcmd_free_nvlists(&zc); 99 100 return (0); 101 } 102 103 int 104 zpool_props_refresh(zpool_handle_t *zhp) 105 { 106 nvlist_t *old_props; 107 108 old_props = zhp->zpool_props; 109 110 if (zpool_get_all_props(zhp) != 0) 111 return (-1); 112 113 nvlist_free(old_props); 114 return (0); 115 } 116 117 static const char * 118 zpool_get_prop_string(zpool_handle_t *zhp, zpool_prop_t prop, 119 zprop_source_t *src) 120 { 121 nvlist_t *nv, *nvl; 122 const 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 source = fnvlist_lookup_uint64(nv, ZPROP_SOURCE); 128 value = fnvlist_lookup_string(nv, ZPROP_VALUE); 129 } else { 130 source = ZPROP_SRC_DEFAULT; 131 if ((value = zpool_prop_default_string(prop)) == NULL) 132 value = "-"; 133 } 134 135 if (src) 136 *src = source; 137 138 return (value); 139 } 140 141 uint64_t 142 zpool_get_prop_int(zpool_handle_t *zhp, zpool_prop_t prop, zprop_source_t *src) 143 { 144 nvlist_t *nv, *nvl; 145 uint64_t value; 146 zprop_source_t source; 147 148 if (zhp->zpool_props == NULL && zpool_get_all_props(zhp)) { 149 /* 150 * zpool_get_all_props() has most likely failed because 151 * the pool is faulted, but if all we need is the top level 152 * vdev's guid then get it from the zhp config nvlist. 153 */ 154 if ((prop == ZPOOL_PROP_GUID) && 155 (nvlist_lookup_nvlist(zhp->zpool_config, 156 ZPOOL_CONFIG_VDEV_TREE, &nv) == 0) && 157 (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &value) 158 == 0)) { 159 return (value); 160 } 161 return (zpool_prop_default_numeric(prop)); 162 } 163 164 nvl = zhp->zpool_props; 165 if (nvlist_lookup_nvlist(nvl, zpool_prop_to_name(prop), &nv) == 0) { 166 source = fnvlist_lookup_uint64(nv, ZPROP_SOURCE); 167 value = fnvlist_lookup_uint64(nv, ZPROP_VALUE); 168 } else { 169 source = ZPROP_SRC_DEFAULT; 170 value = zpool_prop_default_numeric(prop); 171 } 172 173 if (src) 174 *src = source; 175 176 return (value); 177 } 178 179 /* 180 * Map VDEV STATE to printed strings. 181 */ 182 const char * 183 zpool_state_to_name(vdev_state_t state, vdev_aux_t aux) 184 { 185 switch (state) { 186 case VDEV_STATE_CLOSED: 187 case VDEV_STATE_OFFLINE: 188 return (gettext("OFFLINE")); 189 case VDEV_STATE_REMOVED: 190 return (gettext("REMOVED")); 191 case VDEV_STATE_CANT_OPEN: 192 if (aux == VDEV_AUX_CORRUPT_DATA || aux == VDEV_AUX_BAD_LOG) 193 return (gettext("FAULTED")); 194 else if (aux == VDEV_AUX_SPLIT_POOL) 195 return (gettext("SPLIT")); 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 default: 206 break; 207 } 208 209 return (gettext("UNKNOWN")); 210 } 211 212 /* 213 * Map POOL STATE to printed strings. 214 */ 215 const char * 216 zpool_pool_state_to_name(pool_state_t state) 217 { 218 switch (state) { 219 default: 220 break; 221 case POOL_STATE_ACTIVE: 222 return (gettext("ACTIVE")); 223 case POOL_STATE_EXPORTED: 224 return (gettext("EXPORTED")); 225 case POOL_STATE_DESTROYED: 226 return (gettext("DESTROYED")); 227 case POOL_STATE_SPARE: 228 return (gettext("SPARE")); 229 case POOL_STATE_L2CACHE: 230 return (gettext("L2CACHE")); 231 case POOL_STATE_UNINITIALIZED: 232 return (gettext("UNINITIALIZED")); 233 case POOL_STATE_UNAVAIL: 234 return (gettext("UNAVAIL")); 235 case POOL_STATE_POTENTIALLY_ACTIVE: 236 return (gettext("POTENTIALLY_ACTIVE")); 237 } 238 239 return (gettext("UNKNOWN")); 240 } 241 242 /* 243 * Given a pool handle, return the pool health string ("ONLINE", "DEGRADED", 244 * "SUSPENDED", etc). 245 */ 246 const char * 247 zpool_get_state_str(zpool_handle_t *zhp) 248 { 249 zpool_errata_t errata; 250 zpool_status_t status; 251 const char *str; 252 253 status = zpool_get_status(zhp, NULL, &errata); 254 255 if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) { 256 str = gettext("FAULTED"); 257 } else if (status == ZPOOL_STATUS_IO_FAILURE_WAIT || 258 status == ZPOOL_STATUS_IO_FAILURE_CONTINUE || 259 status == ZPOOL_STATUS_IO_FAILURE_MMP) { 260 str = gettext("SUSPENDED"); 261 } else { 262 nvlist_t *nvroot = fnvlist_lookup_nvlist( 263 zpool_get_config(zhp, NULL), ZPOOL_CONFIG_VDEV_TREE); 264 uint_t vsc; 265 vdev_stat_t *vs = (vdev_stat_t *)fnvlist_lookup_uint64_array( 266 nvroot, ZPOOL_CONFIG_VDEV_STATS, &vsc); 267 str = zpool_state_to_name(vs->vs_state, vs->vs_aux); 268 } 269 return (str); 270 } 271 272 /* 273 * Get a zpool property value for 'prop' and return the value in 274 * a pre-allocated buffer. 275 */ 276 int 277 zpool_get_prop(zpool_handle_t *zhp, zpool_prop_t prop, char *buf, 278 size_t len, zprop_source_t *srctype, boolean_t literal) 279 { 280 uint64_t intval; 281 const char *strval; 282 zprop_source_t src = ZPROP_SRC_NONE; 283 284 if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) { 285 switch (prop) { 286 case ZPOOL_PROP_NAME: 287 (void) strlcpy(buf, zpool_get_name(zhp), len); 288 break; 289 290 case ZPOOL_PROP_HEALTH: 291 (void) strlcpy(buf, zpool_get_state_str(zhp), len); 292 break; 293 294 case ZPOOL_PROP_GUID: 295 intval = zpool_get_prop_int(zhp, prop, &src); 296 (void) snprintf(buf, len, "%llu", (u_longlong_t)intval); 297 break; 298 299 case ZPOOL_PROP_ALTROOT: 300 case ZPOOL_PROP_CACHEFILE: 301 case ZPOOL_PROP_COMMENT: 302 case ZPOOL_PROP_COMPATIBILITY: 303 if (zhp->zpool_props != NULL || 304 zpool_get_all_props(zhp) == 0) { 305 (void) strlcpy(buf, 306 zpool_get_prop_string(zhp, prop, &src), 307 len); 308 break; 309 } 310 zfs_fallthrough; 311 default: 312 (void) strlcpy(buf, "-", len); 313 break; 314 } 315 316 if (srctype != NULL) 317 *srctype = src; 318 return (0); 319 } 320 321 if (zhp->zpool_props == NULL && zpool_get_all_props(zhp) && 322 prop != ZPOOL_PROP_NAME) 323 return (-1); 324 325 switch (zpool_prop_get_type(prop)) { 326 case PROP_TYPE_STRING: 327 (void) strlcpy(buf, zpool_get_prop_string(zhp, prop, &src), 328 len); 329 break; 330 331 case PROP_TYPE_NUMBER: 332 intval = zpool_get_prop_int(zhp, prop, &src); 333 334 switch (prop) { 335 case ZPOOL_PROP_SIZE: 336 case ZPOOL_PROP_ALLOCATED: 337 case ZPOOL_PROP_FREE: 338 case ZPOOL_PROP_FREEING: 339 case ZPOOL_PROP_LEAKED: 340 case ZPOOL_PROP_ASHIFT: 341 case ZPOOL_PROP_MAXBLOCKSIZE: 342 case ZPOOL_PROP_MAXDNODESIZE: 343 case ZPOOL_PROP_BCLONESAVED: 344 case ZPOOL_PROP_BCLONEUSED: 345 if (literal) 346 (void) snprintf(buf, len, "%llu", 347 (u_longlong_t)intval); 348 else 349 (void) zfs_nicenum(intval, buf, len); 350 break; 351 352 case ZPOOL_PROP_EXPANDSZ: 353 case ZPOOL_PROP_CHECKPOINT: 354 if (intval == 0) { 355 (void) strlcpy(buf, "-", len); 356 } else if (literal) { 357 (void) snprintf(buf, len, "%llu", 358 (u_longlong_t)intval); 359 } else { 360 (void) zfs_nicebytes(intval, buf, len); 361 } 362 break; 363 364 case ZPOOL_PROP_CAPACITY: 365 if (literal) { 366 (void) snprintf(buf, len, "%llu", 367 (u_longlong_t)intval); 368 } else { 369 (void) snprintf(buf, len, "%llu%%", 370 (u_longlong_t)intval); 371 } 372 break; 373 374 case ZPOOL_PROP_FRAGMENTATION: 375 if (intval == UINT64_MAX) { 376 (void) strlcpy(buf, "-", len); 377 } else if (literal) { 378 (void) snprintf(buf, len, "%llu", 379 (u_longlong_t)intval); 380 } else { 381 (void) snprintf(buf, len, "%llu%%", 382 (u_longlong_t)intval); 383 } 384 break; 385 386 case ZPOOL_PROP_BCLONERATIO: 387 case ZPOOL_PROP_DEDUPRATIO: 388 if (literal) 389 (void) snprintf(buf, len, "%llu.%02llu", 390 (u_longlong_t)(intval / 100), 391 (u_longlong_t)(intval % 100)); 392 else 393 (void) snprintf(buf, len, "%llu.%02llux", 394 (u_longlong_t)(intval / 100), 395 (u_longlong_t)(intval % 100)); 396 break; 397 398 case ZPOOL_PROP_HEALTH: 399 (void) strlcpy(buf, zpool_get_state_str(zhp), len); 400 break; 401 case ZPOOL_PROP_VERSION: 402 if (intval >= SPA_VERSION_FEATURES) { 403 (void) snprintf(buf, len, "-"); 404 break; 405 } 406 zfs_fallthrough; 407 default: 408 (void) snprintf(buf, len, "%llu", (u_longlong_t)intval); 409 } 410 break; 411 412 case PROP_TYPE_INDEX: 413 intval = zpool_get_prop_int(zhp, prop, &src); 414 if (zpool_prop_index_to_string(prop, intval, &strval) 415 != 0) 416 return (-1); 417 (void) strlcpy(buf, strval, len); 418 break; 419 420 default: 421 abort(); 422 } 423 424 if (srctype) 425 *srctype = src; 426 427 return (0); 428 } 429 430 /* 431 * Get a zpool property value for 'propname' and return the value in 432 * a pre-allocated buffer. 433 */ 434 int 435 zpool_get_userprop(zpool_handle_t *zhp, const char *propname, char *buf, 436 size_t len, zprop_source_t *srctype) 437 { 438 nvlist_t *nv, *nvl; 439 uint64_t ival; 440 const char *value; 441 zprop_source_t source = ZPROP_SRC_LOCAL; 442 443 nvl = zhp->zpool_props; 444 if (nvlist_lookup_nvlist(nvl, propname, &nv) == 0) { 445 if (nvlist_lookup_uint64(nv, ZPROP_SOURCE, &ival) == 0) 446 source = ival; 447 verify(nvlist_lookup_string(nv, ZPROP_VALUE, &value) == 0); 448 } else { 449 source = ZPROP_SRC_DEFAULT; 450 value = "-"; 451 } 452 453 if (srctype) 454 *srctype = source; 455 456 (void) strlcpy(buf, value, len); 457 458 return (0); 459 } 460 461 /* 462 * Check if the bootfs name has the same pool name as it is set to. 463 * Assuming bootfs is a valid dataset name. 464 */ 465 static boolean_t 466 bootfs_name_valid(const char *pool, const char *bootfs) 467 { 468 int len = strlen(pool); 469 if (bootfs[0] == '\0') 470 return (B_TRUE); 471 472 if (!zfs_name_valid(bootfs, ZFS_TYPE_FILESYSTEM|ZFS_TYPE_SNAPSHOT)) 473 return (B_FALSE); 474 475 if (strncmp(pool, bootfs, len) == 0 && 476 (bootfs[len] == '/' || bootfs[len] == '\0')) 477 return (B_TRUE); 478 479 return (B_FALSE); 480 } 481 482 /* 483 * Given an nvlist of zpool properties to be set, validate that they are 484 * correct, and parse any numeric properties (index, boolean, etc) if they are 485 * specified as strings. 486 */ 487 static nvlist_t * 488 zpool_valid_proplist(libzfs_handle_t *hdl, const char *poolname, 489 nvlist_t *props, uint64_t version, prop_flags_t flags, char *errbuf) 490 { 491 nvpair_t *elem; 492 nvlist_t *retprops; 493 zpool_prop_t prop; 494 const char *strval; 495 uint64_t intval; 496 const char *slash, *check; 497 struct stat64 statbuf; 498 zpool_handle_t *zhp; 499 char report[1024]; 500 501 if (nvlist_alloc(&retprops, NV_UNIQUE_NAME, 0) != 0) { 502 (void) no_memory(hdl); 503 return (NULL); 504 } 505 506 elem = NULL; 507 while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 508 const char *propname = nvpair_name(elem); 509 510 if (flags.vdevprop && zpool_prop_vdev(propname)) { 511 vdev_prop_t vprop = vdev_name_to_prop(propname); 512 513 if (vdev_prop_readonly(vprop)) { 514 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "'%s' " 515 "is readonly"), propname); 516 (void) zfs_error(hdl, EZFS_PROPREADONLY, 517 errbuf); 518 goto error; 519 } 520 521 if (zprop_parse_value(hdl, elem, vprop, ZFS_TYPE_VDEV, 522 retprops, &strval, &intval, errbuf) != 0) 523 goto error; 524 525 continue; 526 } else if (flags.vdevprop && vdev_prop_user(propname)) { 527 if (nvlist_add_nvpair(retprops, elem) != 0) { 528 (void) no_memory(hdl); 529 goto error; 530 } 531 continue; 532 } else if (flags.vdevprop) { 533 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 534 "invalid property: '%s'"), propname); 535 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 536 goto error; 537 } 538 539 prop = zpool_name_to_prop(propname); 540 if (prop == ZPOOL_PROP_INVAL && zpool_prop_feature(propname)) { 541 int err; 542 char *fname = strchr(propname, '@') + 1; 543 544 err = zfeature_lookup_name(fname, NULL); 545 if (err != 0) { 546 ASSERT3U(err, ==, ENOENT); 547 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 548 "feature '%s' unsupported by kernel"), 549 fname); 550 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 551 goto error; 552 } 553 554 if (nvpair_type(elem) != DATA_TYPE_STRING) { 555 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 556 "'%s' must be a string"), propname); 557 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 558 goto error; 559 } 560 561 (void) nvpair_value_string(elem, &strval); 562 if (strcmp(strval, ZFS_FEATURE_ENABLED) != 0 && 563 strcmp(strval, ZFS_FEATURE_DISABLED) != 0) { 564 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 565 "property '%s' can only be set to " 566 "'enabled' or 'disabled'"), propname); 567 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 568 goto error; 569 } 570 571 if (!flags.create && 572 strcmp(strval, ZFS_FEATURE_DISABLED) == 0) { 573 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 574 "property '%s' can only be set to " 575 "'disabled' at creation time"), propname); 576 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 577 goto error; 578 } 579 580 if (nvlist_add_uint64(retprops, propname, 0) != 0) { 581 (void) no_memory(hdl); 582 goto error; 583 } 584 continue; 585 } else if (prop == ZPOOL_PROP_INVAL && 586 zfs_prop_user(propname)) { 587 /* 588 * This is a user property: make sure it's a 589 * string, and that it's less than ZAP_MAXNAMELEN. 590 */ 591 if (nvpair_type(elem) != DATA_TYPE_STRING) { 592 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 593 "'%s' must be a string"), propname); 594 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 595 goto error; 596 } 597 598 if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 599 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 600 "property name '%s' is too long"), 601 propname); 602 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 603 goto error; 604 } 605 606 (void) nvpair_value_string(elem, &strval); 607 608 if (strlen(strval) >= ZFS_MAXPROPLEN) { 609 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 610 "property value '%s' is too long"), 611 strval); 612 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 613 goto error; 614 } 615 616 if (nvlist_add_string(retprops, propname, 617 strval) != 0) { 618 (void) no_memory(hdl); 619 goto error; 620 } 621 622 continue; 623 } 624 625 /* 626 * Make sure this property is valid and applies to this type. 627 */ 628 if (prop == ZPOOL_PROP_INVAL) { 629 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 630 "invalid property '%s'"), propname); 631 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 632 goto error; 633 } 634 635 if (zpool_prop_readonly(prop)) { 636 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "'%s' " 637 "is readonly"), propname); 638 (void) zfs_error(hdl, EZFS_PROPREADONLY, errbuf); 639 goto error; 640 } 641 642 if (!flags.create && zpool_prop_setonce(prop)) { 643 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 644 "property '%s' can only be set at " 645 "creation time"), propname); 646 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 647 goto error; 648 } 649 650 if (zprop_parse_value(hdl, elem, prop, ZFS_TYPE_POOL, retprops, 651 &strval, &intval, errbuf) != 0) 652 goto error; 653 654 /* 655 * Perform additional checking for specific properties. 656 */ 657 switch (prop) { 658 case ZPOOL_PROP_VERSION: 659 if (intval < version || 660 !SPA_VERSION_IS_SUPPORTED(intval)) { 661 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 662 "property '%s' number %llu is invalid."), 663 propname, (unsigned long long)intval); 664 (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 665 goto error; 666 } 667 break; 668 669 case ZPOOL_PROP_ASHIFT: 670 if (intval != 0 && 671 (intval < ASHIFT_MIN || intval > ASHIFT_MAX)) { 672 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 673 "property '%s' number %llu is invalid, " 674 "only values between %" PRId32 " and %" 675 PRId32 " are allowed."), 676 propname, (unsigned long long)intval, 677 ASHIFT_MIN, ASHIFT_MAX); 678 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 679 goto error; 680 } 681 break; 682 683 case ZPOOL_PROP_BOOTFS: 684 if (flags.create || flags.import) { 685 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 686 "property '%s' cannot be set at creation " 687 "or import time"), propname); 688 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 689 goto error; 690 } 691 692 if (version < SPA_VERSION_BOOTFS) { 693 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 694 "pool must be upgraded to support " 695 "'%s' property"), propname); 696 (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 697 goto error; 698 } 699 700 /* 701 * bootfs property value has to be a dataset name and 702 * the dataset has to be in the same pool as it sets to. 703 */ 704 if (!bootfs_name_valid(poolname, strval)) { 705 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "'%s' " 706 "is an invalid name"), strval); 707 (void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf); 708 goto error; 709 } 710 711 if ((zhp = zpool_open_canfail(hdl, poolname)) == NULL) { 712 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 713 "could not open pool '%s'"), poolname); 714 (void) zfs_error(hdl, EZFS_OPENFAILED, errbuf); 715 goto error; 716 } 717 zpool_close(zhp); 718 break; 719 720 case ZPOOL_PROP_ALTROOT: 721 if (!flags.create && !flags.import) { 722 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 723 "property '%s' can only be set during pool " 724 "creation or import"), propname); 725 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 726 goto error; 727 } 728 729 if (strval[0] != '/') { 730 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 731 "bad alternate root '%s'"), strval); 732 (void) zfs_error(hdl, EZFS_BADPATH, errbuf); 733 goto error; 734 } 735 break; 736 737 case ZPOOL_PROP_CACHEFILE: 738 if (strval[0] == '\0') 739 break; 740 741 if (strcmp(strval, "none") == 0) 742 break; 743 744 if (strval[0] != '/') { 745 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 746 "property '%s' must be empty, an " 747 "absolute path, or 'none'"), propname); 748 (void) zfs_error(hdl, EZFS_BADPATH, errbuf); 749 goto error; 750 } 751 752 slash = strrchr(strval, '/'); 753 754 if (slash[1] == '\0' || strcmp(slash, "/.") == 0 || 755 strcmp(slash, "/..") == 0) { 756 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 757 "'%s' is not a valid file"), strval); 758 (void) zfs_error(hdl, EZFS_BADPATH, errbuf); 759 goto error; 760 } 761 762 *(char *)slash = '\0'; 763 764 if (strval[0] != '\0' && 765 (stat64(strval, &statbuf) != 0 || 766 !S_ISDIR(statbuf.st_mode))) { 767 *(char *)slash = '/'; 768 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 769 "'%s' is not a valid directory"), 770 strval); 771 (void) zfs_error(hdl, EZFS_BADPATH, errbuf); 772 goto error; 773 } 774 775 *(char *)slash = '/'; 776 break; 777 778 case ZPOOL_PROP_COMPATIBILITY: 779 switch (zpool_load_compat(strval, NULL, report, 1024)) { 780 case ZPOOL_COMPATIBILITY_OK: 781 case ZPOOL_COMPATIBILITY_WARNTOKEN: 782 break; 783 case ZPOOL_COMPATIBILITY_BADFILE: 784 case ZPOOL_COMPATIBILITY_BADTOKEN: 785 case ZPOOL_COMPATIBILITY_NOFILES: 786 zfs_error_aux(hdl, "%s", report); 787 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 788 goto error; 789 } 790 break; 791 792 case ZPOOL_PROP_COMMENT: 793 for (check = strval; *check != '\0'; check++) { 794 if (!isprint(*check)) { 795 zfs_error_aux(hdl, 796 dgettext(TEXT_DOMAIN, 797 "comment may only have printable " 798 "characters")); 799 (void) zfs_error(hdl, EZFS_BADPROP, 800 errbuf); 801 goto error; 802 } 803 } 804 if (strlen(strval) > ZPROP_MAX_COMMENT) { 805 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 806 "comment must not exceed %d characters"), 807 ZPROP_MAX_COMMENT); 808 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 809 goto error; 810 } 811 break; 812 case ZPOOL_PROP_READONLY: 813 if (!flags.import) { 814 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 815 "property '%s' can only be set at " 816 "import time"), propname); 817 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 818 goto error; 819 } 820 break; 821 case ZPOOL_PROP_MULTIHOST: 822 if (get_system_hostid() == 0) { 823 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 824 "requires a non-zero system hostid")); 825 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 826 goto error; 827 } 828 break; 829 case ZPOOL_PROP_DEDUPDITTO: 830 printf("Note: property '%s' no longer has " 831 "any effect\n", propname); 832 break; 833 834 default: 835 break; 836 } 837 } 838 839 return (retprops); 840 error: 841 nvlist_free(retprops); 842 return (NULL); 843 } 844 845 /* 846 * Set zpool property : propname=propval. 847 */ 848 int 849 zpool_set_prop(zpool_handle_t *zhp, const char *propname, const char *propval) 850 { 851 zfs_cmd_t zc = {"\0"}; 852 int ret = -1; 853 char errbuf[ERRBUFLEN]; 854 nvlist_t *nvl = NULL; 855 nvlist_t *realprops; 856 uint64_t version; 857 prop_flags_t flags = { 0 }; 858 859 (void) snprintf(errbuf, sizeof (errbuf), 860 dgettext(TEXT_DOMAIN, "cannot set property for '%s'"), 861 zhp->zpool_name); 862 863 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 864 return (no_memory(zhp->zpool_hdl)); 865 866 if (nvlist_add_string(nvl, propname, propval) != 0) { 867 nvlist_free(nvl); 868 return (no_memory(zhp->zpool_hdl)); 869 } 870 871 version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL); 872 if ((realprops = zpool_valid_proplist(zhp->zpool_hdl, 873 zhp->zpool_name, nvl, version, flags, errbuf)) == NULL) { 874 nvlist_free(nvl); 875 return (-1); 876 } 877 878 nvlist_free(nvl); 879 nvl = realprops; 880 881 /* 882 * Execute the corresponding ioctl() to set this property. 883 */ 884 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 885 886 zcmd_write_src_nvlist(zhp->zpool_hdl, &zc, nvl); 887 888 ret = zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_SET_PROPS, &zc); 889 890 zcmd_free_nvlists(&zc); 891 nvlist_free(nvl); 892 893 if (ret) 894 (void) zpool_standard_error(zhp->zpool_hdl, errno, errbuf); 895 else 896 (void) zpool_props_refresh(zhp); 897 898 return (ret); 899 } 900 901 int 902 zpool_expand_proplist(zpool_handle_t *zhp, zprop_list_t **plp, 903 zfs_type_t type, boolean_t literal) 904 { 905 libzfs_handle_t *hdl = zhp->zpool_hdl; 906 zprop_list_t *entry; 907 char buf[ZFS_MAXPROPLEN]; 908 nvlist_t *features = NULL; 909 nvpair_t *nvp; 910 zprop_list_t **last; 911 boolean_t firstexpand = (NULL == *plp); 912 int i; 913 914 if (zprop_expand_list(hdl, plp, type) != 0) 915 return (-1); 916 917 if (type == ZFS_TYPE_VDEV) 918 return (0); 919 920 last = plp; 921 while (*last != NULL) 922 last = &(*last)->pl_next; 923 924 if ((*plp)->pl_all) 925 features = zpool_get_features(zhp); 926 927 if ((*plp)->pl_all && firstexpand) { 928 /* Handle userprops in the all properties case */ 929 if (zhp->zpool_props == NULL && zpool_props_refresh(zhp)) 930 return (-1); 931 932 nvp = NULL; 933 while ((nvp = nvlist_next_nvpair(zhp->zpool_props, nvp)) != 934 NULL) { 935 const char *propname = nvpair_name(nvp); 936 937 if (!zfs_prop_user(propname)) 938 continue; 939 940 entry = zfs_alloc(hdl, sizeof (zprop_list_t)); 941 entry->pl_prop = ZPROP_USERPROP; 942 entry->pl_user_prop = zfs_strdup(hdl, propname); 943 entry->pl_width = strlen(entry->pl_user_prop); 944 entry->pl_all = B_TRUE; 945 946 *last = entry; 947 last = &entry->pl_next; 948 } 949 950 for (i = 0; i < SPA_FEATURES; i++) { 951 entry = zfs_alloc(hdl, sizeof (zprop_list_t)); 952 entry->pl_prop = ZPROP_USERPROP; 953 entry->pl_user_prop = zfs_asprintf(hdl, "feature@%s", 954 spa_feature_table[i].fi_uname); 955 entry->pl_width = strlen(entry->pl_user_prop); 956 entry->pl_all = B_TRUE; 957 958 *last = entry; 959 last = &entry->pl_next; 960 } 961 } 962 963 /* add any unsupported features */ 964 for (nvp = nvlist_next_nvpair(features, NULL); 965 nvp != NULL; nvp = nvlist_next_nvpair(features, nvp)) { 966 char *propname; 967 boolean_t found; 968 969 if (zfeature_is_supported(nvpair_name(nvp))) 970 continue; 971 972 propname = zfs_asprintf(hdl, "unsupported@%s", 973 nvpair_name(nvp)); 974 975 /* 976 * Before adding the property to the list make sure that no 977 * other pool already added the same property. 978 */ 979 found = B_FALSE; 980 entry = *plp; 981 while (entry != NULL) { 982 if (entry->pl_user_prop != NULL && 983 strcmp(propname, entry->pl_user_prop) == 0) { 984 found = B_TRUE; 985 break; 986 } 987 entry = entry->pl_next; 988 } 989 if (found) { 990 free(propname); 991 continue; 992 } 993 994 entry = zfs_alloc(hdl, sizeof (zprop_list_t)); 995 entry->pl_prop = ZPROP_USERPROP; 996 entry->pl_user_prop = propname; 997 entry->pl_width = strlen(entry->pl_user_prop); 998 entry->pl_all = B_TRUE; 999 1000 *last = entry; 1001 last = &entry->pl_next; 1002 } 1003 1004 for (entry = *plp; entry != NULL; entry = entry->pl_next) { 1005 if (entry->pl_fixed && !literal) 1006 continue; 1007 1008 if (entry->pl_prop != ZPROP_USERPROP && 1009 zpool_get_prop(zhp, entry->pl_prop, buf, sizeof (buf), 1010 NULL, literal) == 0) { 1011 if (strlen(buf) > entry->pl_width) 1012 entry->pl_width = strlen(buf); 1013 } else if (entry->pl_prop == ZPROP_INVAL && 1014 zfs_prop_user(entry->pl_user_prop) && 1015 zpool_get_userprop(zhp, entry->pl_user_prop, buf, 1016 sizeof (buf), NULL) == 0) { 1017 if (strlen(buf) > entry->pl_width) 1018 entry->pl_width = strlen(buf); 1019 } 1020 } 1021 1022 return (0); 1023 } 1024 1025 int 1026 vdev_expand_proplist(zpool_handle_t *zhp, const char *vdevname, 1027 zprop_list_t **plp) 1028 { 1029 zprop_list_t *entry; 1030 char buf[ZFS_MAXPROPLEN]; 1031 const char *strval = NULL; 1032 int err = 0; 1033 nvpair_t *elem = NULL; 1034 nvlist_t *vprops = NULL; 1035 nvlist_t *propval = NULL; 1036 const char *propname; 1037 vdev_prop_t prop; 1038 zprop_list_t **last; 1039 1040 for (entry = *plp; entry != NULL; entry = entry->pl_next) { 1041 if (entry->pl_fixed) 1042 continue; 1043 1044 if (zpool_get_vdev_prop(zhp, vdevname, entry->pl_prop, 1045 entry->pl_user_prop, buf, sizeof (buf), NULL, 1046 B_FALSE) == 0) { 1047 if (strlen(buf) > entry->pl_width) 1048 entry->pl_width = strlen(buf); 1049 } 1050 if (entry->pl_prop == VDEV_PROP_NAME && 1051 strlen(vdevname) > entry->pl_width) 1052 entry->pl_width = strlen(vdevname); 1053 } 1054 1055 /* Handle the all properties case */ 1056 last = plp; 1057 if (*last != NULL && (*last)->pl_all == B_TRUE) { 1058 while (*last != NULL) 1059 last = &(*last)->pl_next; 1060 1061 err = zpool_get_all_vdev_props(zhp, vdevname, &vprops); 1062 if (err != 0) 1063 return (err); 1064 1065 while ((elem = nvlist_next_nvpair(vprops, elem)) != NULL) { 1066 propname = nvpair_name(elem); 1067 1068 /* Skip properties that are not user defined */ 1069 if ((prop = vdev_name_to_prop(propname)) != 1070 VDEV_PROP_USERPROP) 1071 continue; 1072 1073 if (nvpair_value_nvlist(elem, &propval) != 0) 1074 continue; 1075 1076 strval = fnvlist_lookup_string(propval, ZPROP_VALUE); 1077 1078 entry = zfs_alloc(zhp->zpool_hdl, 1079 sizeof (zprop_list_t)); 1080 entry->pl_prop = prop; 1081 entry->pl_user_prop = zfs_strdup(zhp->zpool_hdl, 1082 propname); 1083 entry->pl_width = strlen(strval); 1084 entry->pl_all = B_TRUE; 1085 *last = entry; 1086 last = &entry->pl_next; 1087 } 1088 } 1089 1090 return (0); 1091 } 1092 1093 /* 1094 * Get the state for the given feature on the given ZFS pool. 1095 */ 1096 int 1097 zpool_prop_get_feature(zpool_handle_t *zhp, const char *propname, char *buf, 1098 size_t len) 1099 { 1100 uint64_t refcount; 1101 boolean_t found = B_FALSE; 1102 nvlist_t *features = zpool_get_features(zhp); 1103 boolean_t supported; 1104 const char *feature = strchr(propname, '@') + 1; 1105 1106 supported = zpool_prop_feature(propname); 1107 ASSERT(supported || zpool_prop_unsupported(propname)); 1108 1109 /* 1110 * Convert from feature name to feature guid. This conversion is 1111 * unnecessary for unsupported@... properties because they already 1112 * use guids. 1113 */ 1114 if (supported) { 1115 int ret; 1116 spa_feature_t fid; 1117 1118 ret = zfeature_lookup_name(feature, &fid); 1119 if (ret != 0) { 1120 (void) strlcpy(buf, "-", len); 1121 return (ENOTSUP); 1122 } 1123 feature = spa_feature_table[fid].fi_guid; 1124 } 1125 1126 if (nvlist_lookup_uint64(features, feature, &refcount) == 0) 1127 found = B_TRUE; 1128 1129 if (supported) { 1130 if (!found) { 1131 (void) strlcpy(buf, ZFS_FEATURE_DISABLED, len); 1132 } else { 1133 if (refcount == 0) 1134 (void) strlcpy(buf, ZFS_FEATURE_ENABLED, len); 1135 else 1136 (void) strlcpy(buf, ZFS_FEATURE_ACTIVE, len); 1137 } 1138 } else { 1139 if (found) { 1140 if (refcount == 0) { 1141 (void) strcpy(buf, ZFS_UNSUPPORTED_INACTIVE); 1142 } else { 1143 (void) strcpy(buf, ZFS_UNSUPPORTED_READONLY); 1144 } 1145 } else { 1146 (void) strlcpy(buf, "-", len); 1147 return (ENOTSUP); 1148 } 1149 } 1150 1151 return (0); 1152 } 1153 1154 /* 1155 * Validate the given pool name, optionally putting an extended error message in 1156 * 'buf'. 1157 */ 1158 boolean_t 1159 zpool_name_valid(libzfs_handle_t *hdl, boolean_t isopen, const char *pool) 1160 { 1161 namecheck_err_t why; 1162 char what; 1163 int ret; 1164 1165 ret = pool_namecheck(pool, &why, &what); 1166 1167 /* 1168 * The rules for reserved pool names were extended at a later point. 1169 * But we need to support users with existing pools that may now be 1170 * invalid. So we only check for this expanded set of names during a 1171 * create (or import), and only in userland. 1172 */ 1173 if (ret == 0 && !isopen && 1174 (strncmp(pool, "mirror", 6) == 0 || 1175 strncmp(pool, "raidz", 5) == 0 || 1176 strncmp(pool, "draid", 5) == 0 || 1177 strncmp(pool, "spare", 5) == 0 || 1178 strcmp(pool, "log") == 0)) { 1179 if (hdl != NULL) 1180 zfs_error_aux(hdl, 1181 dgettext(TEXT_DOMAIN, "name is reserved")); 1182 return (B_FALSE); 1183 } 1184 1185 1186 if (ret != 0) { 1187 if (hdl != NULL) { 1188 switch (why) { 1189 case NAME_ERR_TOOLONG: 1190 zfs_error_aux(hdl, 1191 dgettext(TEXT_DOMAIN, "name is too long")); 1192 break; 1193 1194 case NAME_ERR_INVALCHAR: 1195 zfs_error_aux(hdl, 1196 dgettext(TEXT_DOMAIN, "invalid character " 1197 "'%c' in pool name"), what); 1198 break; 1199 1200 case NAME_ERR_NOLETTER: 1201 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1202 "name must begin with a letter")); 1203 break; 1204 1205 case NAME_ERR_RESERVED: 1206 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1207 "name is reserved")); 1208 break; 1209 1210 case NAME_ERR_DISKLIKE: 1211 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1212 "pool name is reserved")); 1213 break; 1214 1215 case NAME_ERR_LEADING_SLASH: 1216 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1217 "leading slash in name")); 1218 break; 1219 1220 case NAME_ERR_EMPTY_COMPONENT: 1221 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1222 "empty component in name")); 1223 break; 1224 1225 case NAME_ERR_TRAILING_SLASH: 1226 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1227 "trailing slash in name")); 1228 break; 1229 1230 case NAME_ERR_MULTIPLE_DELIMITERS: 1231 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1232 "multiple '@' and/or '#' delimiters in " 1233 "name")); 1234 break; 1235 1236 case NAME_ERR_NO_AT: 1237 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1238 "permission set is missing '@'")); 1239 break; 1240 1241 default: 1242 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1243 "(%d) not defined"), why); 1244 break; 1245 } 1246 } 1247 return (B_FALSE); 1248 } 1249 1250 return (B_TRUE); 1251 } 1252 1253 /* 1254 * Open a handle to the given pool, even if the pool is currently in the FAULTED 1255 * state. 1256 */ 1257 zpool_handle_t * 1258 zpool_open_canfail(libzfs_handle_t *hdl, const char *pool) 1259 { 1260 zpool_handle_t *zhp; 1261 boolean_t missing; 1262 1263 /* 1264 * Make sure the pool name is valid. 1265 */ 1266 if (!zpool_name_valid(hdl, B_TRUE, pool)) { 1267 (void) zfs_error_fmt(hdl, EZFS_INVALIDNAME, 1268 dgettext(TEXT_DOMAIN, "cannot open '%s'"), 1269 pool); 1270 return (NULL); 1271 } 1272 1273 zhp = zfs_alloc(hdl, sizeof (zpool_handle_t)); 1274 1275 zhp->zpool_hdl = hdl; 1276 (void) strlcpy(zhp->zpool_name, pool, sizeof (zhp->zpool_name)); 1277 1278 if (zpool_refresh_stats(zhp, &missing) != 0) { 1279 zpool_close(zhp); 1280 return (NULL); 1281 } 1282 1283 if (missing) { 1284 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "no such pool")); 1285 (void) zfs_error_fmt(hdl, EZFS_NOENT, 1286 dgettext(TEXT_DOMAIN, "cannot open '%s'"), pool); 1287 zpool_close(zhp); 1288 return (NULL); 1289 } 1290 1291 return (zhp); 1292 } 1293 1294 /* 1295 * Like the above, but silent on error. Used when iterating over pools (because 1296 * the configuration cache may be out of date). 1297 */ 1298 int 1299 zpool_open_silent(libzfs_handle_t *hdl, const char *pool, zpool_handle_t **ret) 1300 { 1301 zpool_handle_t *zhp; 1302 boolean_t missing; 1303 1304 zhp = zfs_alloc(hdl, sizeof (zpool_handle_t)); 1305 1306 zhp->zpool_hdl = hdl; 1307 (void) strlcpy(zhp->zpool_name, pool, sizeof (zhp->zpool_name)); 1308 1309 if (zpool_refresh_stats(zhp, &missing) != 0) { 1310 zpool_close(zhp); 1311 return (-1); 1312 } 1313 1314 if (missing) { 1315 zpool_close(zhp); 1316 *ret = NULL; 1317 return (0); 1318 } 1319 1320 *ret = zhp; 1321 return (0); 1322 } 1323 1324 /* 1325 * Similar to zpool_open_canfail(), but refuses to open pools in the faulted 1326 * state. 1327 */ 1328 zpool_handle_t * 1329 zpool_open(libzfs_handle_t *hdl, const char *pool) 1330 { 1331 zpool_handle_t *zhp; 1332 1333 if ((zhp = zpool_open_canfail(hdl, pool)) == NULL) 1334 return (NULL); 1335 1336 if (zhp->zpool_state == POOL_STATE_UNAVAIL) { 1337 (void) zfs_error_fmt(hdl, EZFS_POOLUNAVAIL, 1338 dgettext(TEXT_DOMAIN, "cannot open '%s'"), zhp->zpool_name); 1339 zpool_close(zhp); 1340 return (NULL); 1341 } 1342 1343 return (zhp); 1344 } 1345 1346 /* 1347 * Close the handle. Simply frees the memory associated with the handle. 1348 */ 1349 void 1350 zpool_close(zpool_handle_t *zhp) 1351 { 1352 nvlist_free(zhp->zpool_config); 1353 nvlist_free(zhp->zpool_old_config); 1354 nvlist_free(zhp->zpool_props); 1355 free(zhp); 1356 } 1357 1358 /* 1359 * Return the name of the pool. 1360 */ 1361 const char * 1362 zpool_get_name(zpool_handle_t *zhp) 1363 { 1364 return (zhp->zpool_name); 1365 } 1366 1367 1368 /* 1369 * Return the state of the pool (ACTIVE or UNAVAILABLE) 1370 */ 1371 int 1372 zpool_get_state(zpool_handle_t *zhp) 1373 { 1374 return (zhp->zpool_state); 1375 } 1376 1377 /* 1378 * Check if vdev list contains a special vdev 1379 */ 1380 static boolean_t 1381 zpool_has_special_vdev(nvlist_t *nvroot) 1382 { 1383 nvlist_t **child; 1384 uint_t children; 1385 1386 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, &child, 1387 &children) == 0) { 1388 for (uint_t c = 0; c < children; c++) { 1389 const char *bias; 1390 1391 if (nvlist_lookup_string(child[c], 1392 ZPOOL_CONFIG_ALLOCATION_BIAS, &bias) == 0 && 1393 strcmp(bias, VDEV_ALLOC_BIAS_SPECIAL) == 0) { 1394 return (B_TRUE); 1395 } 1396 } 1397 } 1398 return (B_FALSE); 1399 } 1400 1401 /* 1402 * Check if vdev list contains a dRAID vdev 1403 */ 1404 static boolean_t 1405 zpool_has_draid_vdev(nvlist_t *nvroot) 1406 { 1407 nvlist_t **child; 1408 uint_t children; 1409 1410 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, 1411 &child, &children) == 0) { 1412 for (uint_t c = 0; c < children; c++) { 1413 const char *type; 1414 1415 if (nvlist_lookup_string(child[c], 1416 ZPOOL_CONFIG_TYPE, &type) == 0 && 1417 strcmp(type, VDEV_TYPE_DRAID) == 0) { 1418 return (B_TRUE); 1419 } 1420 } 1421 } 1422 return (B_FALSE); 1423 } 1424 1425 /* 1426 * Output a dRAID top-level vdev name in to the provided buffer. 1427 */ 1428 static char * 1429 zpool_draid_name(char *name, int len, uint64_t data, uint64_t parity, 1430 uint64_t spares, uint64_t children) 1431 { 1432 snprintf(name, len, "%s%llu:%llud:%lluc:%llus", 1433 VDEV_TYPE_DRAID, (u_longlong_t)parity, (u_longlong_t)data, 1434 (u_longlong_t)children, (u_longlong_t)spares); 1435 1436 return (name); 1437 } 1438 1439 /* 1440 * Return B_TRUE if the provided name is a dRAID spare name. 1441 */ 1442 boolean_t 1443 zpool_is_draid_spare(const char *name) 1444 { 1445 uint64_t spare_id, parity, vdev_id; 1446 1447 if (sscanf(name, VDEV_TYPE_DRAID "%llu-%llu-%llu", 1448 (u_longlong_t *)&parity, (u_longlong_t *)&vdev_id, 1449 (u_longlong_t *)&spare_id) == 3) { 1450 return (B_TRUE); 1451 } 1452 1453 return (B_FALSE); 1454 } 1455 1456 /* 1457 * Create the named pool, using the provided vdev list. It is assumed 1458 * that the consumer has already validated the contents of the nvlist, so we 1459 * don't have to worry about error semantics. 1460 */ 1461 int 1462 zpool_create(libzfs_handle_t *hdl, const char *pool, nvlist_t *nvroot, 1463 nvlist_t *props, nvlist_t *fsprops) 1464 { 1465 zfs_cmd_t zc = {"\0"}; 1466 nvlist_t *zc_fsprops = NULL; 1467 nvlist_t *zc_props = NULL; 1468 nvlist_t *hidden_args = NULL; 1469 uint8_t *wkeydata = NULL; 1470 uint_t wkeylen = 0; 1471 char errbuf[ERRBUFLEN]; 1472 int ret = -1; 1473 1474 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1475 "cannot create '%s'"), pool); 1476 1477 if (!zpool_name_valid(hdl, B_FALSE, pool)) 1478 return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 1479 1480 zcmd_write_conf_nvlist(hdl, &zc, nvroot); 1481 1482 if (props) { 1483 prop_flags_t flags = { .create = B_TRUE, .import = B_FALSE }; 1484 1485 if ((zc_props = zpool_valid_proplist(hdl, pool, props, 1486 SPA_VERSION_1, flags, errbuf)) == NULL) { 1487 goto create_failed; 1488 } 1489 } 1490 1491 if (fsprops) { 1492 uint64_t zoned; 1493 const char *zonestr; 1494 1495 zoned = ((nvlist_lookup_string(fsprops, 1496 zfs_prop_to_name(ZFS_PROP_ZONED), &zonestr) == 0) && 1497 strcmp(zonestr, "on") == 0); 1498 1499 if ((zc_fsprops = zfs_valid_proplist(hdl, ZFS_TYPE_FILESYSTEM, 1500 fsprops, zoned, NULL, NULL, B_TRUE, errbuf)) == NULL) { 1501 goto create_failed; 1502 } 1503 1504 if (nvlist_exists(zc_fsprops, 1505 zfs_prop_to_name(ZFS_PROP_SPECIAL_SMALL_BLOCKS)) && 1506 !zpool_has_special_vdev(nvroot)) { 1507 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1508 "%s property requires a special vdev"), 1509 zfs_prop_to_name(ZFS_PROP_SPECIAL_SMALL_BLOCKS)); 1510 (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1511 goto create_failed; 1512 } 1513 1514 if (!zc_props && 1515 (nvlist_alloc(&zc_props, NV_UNIQUE_NAME, 0) != 0)) { 1516 goto create_failed; 1517 } 1518 if (zfs_crypto_create(hdl, NULL, zc_fsprops, props, B_TRUE, 1519 &wkeydata, &wkeylen) != 0) { 1520 zfs_error(hdl, EZFS_CRYPTOFAILED, errbuf); 1521 goto create_failed; 1522 } 1523 if (nvlist_add_nvlist(zc_props, 1524 ZPOOL_ROOTFS_PROPS, zc_fsprops) != 0) { 1525 goto create_failed; 1526 } 1527 if (wkeydata != NULL) { 1528 if (nvlist_alloc(&hidden_args, NV_UNIQUE_NAME, 0) != 0) 1529 goto create_failed; 1530 1531 if (nvlist_add_uint8_array(hidden_args, "wkeydata", 1532 wkeydata, wkeylen) != 0) 1533 goto create_failed; 1534 1535 if (nvlist_add_nvlist(zc_props, ZPOOL_HIDDEN_ARGS, 1536 hidden_args) != 0) 1537 goto create_failed; 1538 } 1539 } 1540 1541 if (zc_props) 1542 zcmd_write_src_nvlist(hdl, &zc, zc_props); 1543 1544 (void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name)); 1545 1546 if ((ret = zfs_ioctl(hdl, ZFS_IOC_POOL_CREATE, &zc)) != 0) { 1547 1548 zcmd_free_nvlists(&zc); 1549 nvlist_free(zc_props); 1550 nvlist_free(zc_fsprops); 1551 nvlist_free(hidden_args); 1552 if (wkeydata != NULL) 1553 free(wkeydata); 1554 1555 switch (errno) { 1556 case EBUSY: 1557 /* 1558 * This can happen if the user has specified the same 1559 * device multiple times. We can't reliably detect this 1560 * until we try to add it and see we already have a 1561 * label. This can also happen under if the device is 1562 * part of an active md or lvm device. 1563 */ 1564 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1565 "one or more vdevs refer to the same device, or " 1566 "one of\nthe devices is part of an active md or " 1567 "lvm device")); 1568 return (zfs_error(hdl, EZFS_BADDEV, errbuf)); 1569 1570 case ERANGE: 1571 /* 1572 * This happens if the record size is smaller or larger 1573 * than the allowed size range, or not a power of 2. 1574 * 1575 * NOTE: although zfs_valid_proplist is called earlier, 1576 * this case may have slipped through since the 1577 * pool does not exist yet and it is therefore 1578 * impossible to read properties e.g. max blocksize 1579 * from the pool. 1580 */ 1581 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1582 "record size invalid")); 1583 return (zfs_error(hdl, EZFS_BADPROP, errbuf)); 1584 1585 case EOVERFLOW: 1586 /* 1587 * This occurs when one of the devices is below 1588 * SPA_MINDEVSIZE. Unfortunately, we can't detect which 1589 * device was the problem device since there's no 1590 * reliable way to determine device size from userland. 1591 */ 1592 { 1593 char buf[64]; 1594 1595 zfs_nicebytes(SPA_MINDEVSIZE, buf, 1596 sizeof (buf)); 1597 1598 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1599 "one or more devices is less than the " 1600 "minimum size (%s)"), buf); 1601 } 1602 return (zfs_error(hdl, EZFS_BADDEV, errbuf)); 1603 1604 case ENOSPC: 1605 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1606 "one or more devices is out of space")); 1607 return (zfs_error(hdl, EZFS_BADDEV, errbuf)); 1608 1609 case EINVAL: 1610 if (zpool_has_draid_vdev(nvroot) && 1611 zfeature_lookup_name("draid", NULL) != 0) { 1612 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1613 "dRAID vdevs are unsupported by the " 1614 "kernel")); 1615 return (zfs_error(hdl, EZFS_BADDEV, errbuf)); 1616 } else { 1617 return (zpool_standard_error(hdl, errno, 1618 errbuf)); 1619 } 1620 1621 default: 1622 return (zpool_standard_error(hdl, errno, errbuf)); 1623 } 1624 } 1625 1626 create_failed: 1627 zcmd_free_nvlists(&zc); 1628 nvlist_free(zc_props); 1629 nvlist_free(zc_fsprops); 1630 nvlist_free(hidden_args); 1631 if (wkeydata != NULL) 1632 free(wkeydata); 1633 return (ret); 1634 } 1635 1636 /* 1637 * Destroy the given pool. It is up to the caller to ensure that there are no 1638 * datasets left in the pool. 1639 */ 1640 int 1641 zpool_destroy(zpool_handle_t *zhp, const char *log_str) 1642 { 1643 zfs_cmd_t zc = {"\0"}; 1644 zfs_handle_t *zfp = NULL; 1645 libzfs_handle_t *hdl = zhp->zpool_hdl; 1646 char errbuf[ERRBUFLEN]; 1647 1648 if (zhp->zpool_state == POOL_STATE_ACTIVE && 1649 (zfp = zfs_open(hdl, zhp->zpool_name, ZFS_TYPE_FILESYSTEM)) == NULL) 1650 return (-1); 1651 1652 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1653 zc.zc_history = (uint64_t)(uintptr_t)log_str; 1654 1655 if (zfs_ioctl(hdl, ZFS_IOC_POOL_DESTROY, &zc) != 0) { 1656 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1657 "cannot destroy '%s'"), zhp->zpool_name); 1658 1659 if (errno == EROFS) { 1660 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1661 "one or more devices is read only")); 1662 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 1663 } else { 1664 (void) zpool_standard_error(hdl, errno, errbuf); 1665 } 1666 1667 if (zfp) 1668 zfs_close(zfp); 1669 return (-1); 1670 } 1671 1672 if (zfp) { 1673 remove_mountpoint(zfp); 1674 zfs_close(zfp); 1675 } 1676 1677 return (0); 1678 } 1679 1680 /* 1681 * Create a checkpoint in the given pool. 1682 */ 1683 int 1684 zpool_checkpoint(zpool_handle_t *zhp) 1685 { 1686 libzfs_handle_t *hdl = zhp->zpool_hdl; 1687 char errbuf[ERRBUFLEN]; 1688 int error; 1689 1690 error = lzc_pool_checkpoint(zhp->zpool_name); 1691 if (error != 0) { 1692 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1693 "cannot checkpoint '%s'"), zhp->zpool_name); 1694 (void) zpool_standard_error(hdl, error, errbuf); 1695 return (-1); 1696 } 1697 1698 return (0); 1699 } 1700 1701 /* 1702 * Discard the checkpoint from the given pool. 1703 */ 1704 int 1705 zpool_discard_checkpoint(zpool_handle_t *zhp) 1706 { 1707 libzfs_handle_t *hdl = zhp->zpool_hdl; 1708 char errbuf[ERRBUFLEN]; 1709 int error; 1710 1711 error = lzc_pool_checkpoint_discard(zhp->zpool_name); 1712 if (error != 0) { 1713 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1714 "cannot discard checkpoint in '%s'"), zhp->zpool_name); 1715 (void) zpool_standard_error(hdl, error, errbuf); 1716 return (-1); 1717 } 1718 1719 return (0); 1720 } 1721 1722 /* 1723 * Add the given vdevs to the pool. The caller must have already performed the 1724 * necessary verification to ensure that the vdev specification is well-formed. 1725 */ 1726 int 1727 zpool_add(zpool_handle_t *zhp, nvlist_t *nvroot) 1728 { 1729 zfs_cmd_t zc = {"\0"}; 1730 int ret; 1731 libzfs_handle_t *hdl = zhp->zpool_hdl; 1732 char errbuf[ERRBUFLEN]; 1733 nvlist_t **spares, **l2cache; 1734 uint_t nspares, nl2cache; 1735 1736 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 1737 "cannot add to '%s'"), zhp->zpool_name); 1738 1739 if (zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL) < 1740 SPA_VERSION_SPARES && 1741 nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, 1742 &spares, &nspares) == 0) { 1743 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool must be " 1744 "upgraded to add hot spares")); 1745 return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 1746 } 1747 1748 if (zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL) < 1749 SPA_VERSION_L2CACHE && 1750 nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, 1751 &l2cache, &nl2cache) == 0) { 1752 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool must be " 1753 "upgraded to add cache devices")); 1754 return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 1755 } 1756 1757 zcmd_write_conf_nvlist(hdl, &zc, nvroot); 1758 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1759 1760 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_ADD, &zc) != 0) { 1761 switch (errno) { 1762 case EBUSY: 1763 /* 1764 * This can happen if the user has specified the same 1765 * device multiple times. We can't reliably detect this 1766 * until we try to add it and see we already have a 1767 * label. 1768 */ 1769 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1770 "one or more vdevs refer to the same device")); 1771 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 1772 break; 1773 1774 case EINVAL: 1775 1776 if (zpool_has_draid_vdev(nvroot) && 1777 zfeature_lookup_name("draid", NULL) != 0) { 1778 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1779 "dRAID vdevs are unsupported by the " 1780 "kernel")); 1781 } else { 1782 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1783 "invalid config; a pool with removing/" 1784 "removed vdevs does not support adding " 1785 "raidz or dRAID vdevs")); 1786 } 1787 1788 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 1789 break; 1790 1791 case EOVERFLOW: 1792 /* 1793 * This occurs when one of the devices is below 1794 * SPA_MINDEVSIZE. Unfortunately, we can't detect which 1795 * device was the problem device since there's no 1796 * reliable way to determine device size from userland. 1797 */ 1798 { 1799 char buf[64]; 1800 1801 zfs_nicebytes(SPA_MINDEVSIZE, buf, 1802 sizeof (buf)); 1803 1804 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1805 "device is less than the minimum " 1806 "size (%s)"), buf); 1807 } 1808 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 1809 break; 1810 1811 case ENOTSUP: 1812 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1813 "pool must be upgraded to add these vdevs")); 1814 (void) zfs_error(hdl, EZFS_BADVERSION, errbuf); 1815 break; 1816 1817 default: 1818 (void) zpool_standard_error(hdl, errno, errbuf); 1819 } 1820 1821 ret = -1; 1822 } else { 1823 ret = 0; 1824 } 1825 1826 zcmd_free_nvlists(&zc); 1827 1828 return (ret); 1829 } 1830 1831 /* 1832 * Exports the pool from the system. The caller must ensure that there are no 1833 * mounted datasets in the pool. 1834 */ 1835 static int 1836 zpool_export_common(zpool_handle_t *zhp, boolean_t force, boolean_t hardforce, 1837 const char *log_str) 1838 { 1839 zfs_cmd_t zc = {"\0"}; 1840 1841 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 1842 zc.zc_cookie = force; 1843 zc.zc_guid = hardforce; 1844 zc.zc_history = (uint64_t)(uintptr_t)log_str; 1845 1846 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_POOL_EXPORT, &zc) != 0) { 1847 switch (errno) { 1848 case EXDEV: 1849 zfs_error_aux(zhp->zpool_hdl, dgettext(TEXT_DOMAIN, 1850 "use '-f' to override the following errors:\n" 1851 "'%s' has an active shared spare which could be" 1852 " used by other pools once '%s' is exported."), 1853 zhp->zpool_name, zhp->zpool_name); 1854 return (zfs_error_fmt(zhp->zpool_hdl, EZFS_ACTIVE_SPARE, 1855 dgettext(TEXT_DOMAIN, "cannot export '%s'"), 1856 zhp->zpool_name)); 1857 default: 1858 return (zpool_standard_error_fmt(zhp->zpool_hdl, errno, 1859 dgettext(TEXT_DOMAIN, "cannot export '%s'"), 1860 zhp->zpool_name)); 1861 } 1862 } 1863 1864 return (0); 1865 } 1866 1867 int 1868 zpool_export(zpool_handle_t *zhp, boolean_t force, const char *log_str) 1869 { 1870 return (zpool_export_common(zhp, force, B_FALSE, log_str)); 1871 } 1872 1873 int 1874 zpool_export_force(zpool_handle_t *zhp, const char *log_str) 1875 { 1876 return (zpool_export_common(zhp, B_TRUE, B_TRUE, log_str)); 1877 } 1878 1879 static void 1880 zpool_rewind_exclaim(libzfs_handle_t *hdl, const char *name, boolean_t dryrun, 1881 nvlist_t *config) 1882 { 1883 nvlist_t *nv = NULL; 1884 uint64_t rewindto; 1885 int64_t loss = -1; 1886 struct tm t; 1887 char timestr[128]; 1888 1889 if (!hdl->libzfs_printerr || config == NULL) 1890 return; 1891 1892 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, &nv) != 0 || 1893 nvlist_lookup_nvlist(nv, ZPOOL_CONFIG_REWIND_INFO, &nv) != 0) { 1894 return; 1895 } 1896 1897 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0) 1898 return; 1899 (void) nvlist_lookup_int64(nv, ZPOOL_CONFIG_REWIND_TIME, &loss); 1900 1901 if (localtime_r((time_t *)&rewindto, &t) != NULL && 1902 strftime(timestr, 128, "%c", &t) != 0) { 1903 if (dryrun) { 1904 (void) printf(dgettext(TEXT_DOMAIN, 1905 "Would be able to return %s " 1906 "to its state as of %s.\n"), 1907 name, timestr); 1908 } else { 1909 (void) printf(dgettext(TEXT_DOMAIN, 1910 "Pool %s returned to its state as of %s.\n"), 1911 name, timestr); 1912 } 1913 if (loss > 120) { 1914 (void) printf(dgettext(TEXT_DOMAIN, 1915 "%s approximately %lld "), 1916 dryrun ? "Would discard" : "Discarded", 1917 ((longlong_t)loss + 30) / 60); 1918 (void) printf(dgettext(TEXT_DOMAIN, 1919 "minutes of transactions.\n")); 1920 } else if (loss > 0) { 1921 (void) printf(dgettext(TEXT_DOMAIN, 1922 "%s approximately %lld "), 1923 dryrun ? "Would discard" : "Discarded", 1924 (longlong_t)loss); 1925 (void) printf(dgettext(TEXT_DOMAIN, 1926 "seconds of transactions.\n")); 1927 } 1928 } 1929 } 1930 1931 void 1932 zpool_explain_recover(libzfs_handle_t *hdl, const char *name, int reason, 1933 nvlist_t *config) 1934 { 1935 nvlist_t *nv = NULL; 1936 int64_t loss = -1; 1937 uint64_t edata = UINT64_MAX; 1938 uint64_t rewindto; 1939 struct tm t; 1940 char timestr[128]; 1941 1942 if (!hdl->libzfs_printerr) 1943 return; 1944 1945 if (reason >= 0) 1946 (void) printf(dgettext(TEXT_DOMAIN, "action: ")); 1947 else 1948 (void) printf(dgettext(TEXT_DOMAIN, "\t")); 1949 1950 /* All attempted rewinds failed if ZPOOL_CONFIG_LOAD_TIME missing */ 1951 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO, &nv) != 0 || 1952 nvlist_lookup_nvlist(nv, ZPOOL_CONFIG_REWIND_INFO, &nv) != 0 || 1953 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_TIME, &rewindto) != 0) 1954 goto no_info; 1955 1956 (void) nvlist_lookup_int64(nv, ZPOOL_CONFIG_REWIND_TIME, &loss); 1957 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_LOAD_DATA_ERRORS, 1958 &edata); 1959 1960 (void) printf(dgettext(TEXT_DOMAIN, 1961 "Recovery is possible, but will result in some data loss.\n")); 1962 1963 if (localtime_r((time_t *)&rewindto, &t) != NULL && 1964 strftime(timestr, 128, "%c", &t) != 0) { 1965 (void) printf(dgettext(TEXT_DOMAIN, 1966 "\tReturning the pool to its state as of %s\n" 1967 "\tshould correct the problem. "), 1968 timestr); 1969 } else { 1970 (void) printf(dgettext(TEXT_DOMAIN, 1971 "\tReverting the pool to an earlier state " 1972 "should correct the problem.\n\t")); 1973 } 1974 1975 if (loss > 120) { 1976 (void) printf(dgettext(TEXT_DOMAIN, 1977 "Approximately %lld minutes of data\n" 1978 "\tmust be discarded, irreversibly. "), 1979 ((longlong_t)loss + 30) / 60); 1980 } else if (loss > 0) { 1981 (void) printf(dgettext(TEXT_DOMAIN, 1982 "Approximately %lld seconds of data\n" 1983 "\tmust be discarded, irreversibly. "), 1984 (longlong_t)loss); 1985 } 1986 if (edata != 0 && edata != UINT64_MAX) { 1987 if (edata == 1) { 1988 (void) printf(dgettext(TEXT_DOMAIN, 1989 "After rewind, at least\n" 1990 "\tone persistent user-data error will remain. ")); 1991 } else { 1992 (void) printf(dgettext(TEXT_DOMAIN, 1993 "After rewind, several\n" 1994 "\tpersistent user-data errors will remain. ")); 1995 } 1996 } 1997 (void) printf(dgettext(TEXT_DOMAIN, 1998 "Recovery can be attempted\n\tby executing 'zpool %s -F %s'. "), 1999 reason >= 0 ? "clear" : "import", name); 2000 2001 (void) printf(dgettext(TEXT_DOMAIN, 2002 "A scrub of the pool\n" 2003 "\tis strongly recommended after recovery.\n")); 2004 return; 2005 2006 no_info: 2007 (void) printf(dgettext(TEXT_DOMAIN, 2008 "Destroy and re-create the pool from\n\ta backup source.\n")); 2009 } 2010 2011 /* 2012 * zpool_import() is a contracted interface. Should be kept the same 2013 * if possible. 2014 * 2015 * Applications should use zpool_import_props() to import a pool with 2016 * new properties value to be set. 2017 */ 2018 int 2019 zpool_import(libzfs_handle_t *hdl, nvlist_t *config, const char *newname, 2020 char *altroot) 2021 { 2022 nvlist_t *props = NULL; 2023 int ret; 2024 2025 if (altroot != NULL) { 2026 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) { 2027 return (zfs_error_fmt(hdl, EZFS_NOMEM, 2028 dgettext(TEXT_DOMAIN, "cannot import '%s'"), 2029 newname)); 2030 } 2031 2032 if (nvlist_add_string(props, 2033 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), altroot) != 0 || 2034 nvlist_add_string(props, 2035 zpool_prop_to_name(ZPOOL_PROP_CACHEFILE), "none") != 0) { 2036 nvlist_free(props); 2037 return (zfs_error_fmt(hdl, EZFS_NOMEM, 2038 dgettext(TEXT_DOMAIN, "cannot import '%s'"), 2039 newname)); 2040 } 2041 } 2042 2043 ret = zpool_import_props(hdl, config, newname, props, 2044 ZFS_IMPORT_NORMAL); 2045 nvlist_free(props); 2046 return (ret); 2047 } 2048 2049 static void 2050 print_vdev_tree(libzfs_handle_t *hdl, const char *name, nvlist_t *nv, 2051 int indent) 2052 { 2053 nvlist_t **child; 2054 uint_t c, children; 2055 char *vname; 2056 uint64_t is_log = 0; 2057 2058 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, 2059 &is_log); 2060 2061 if (name != NULL) 2062 (void) printf("\t%*s%s%s\n", indent, "", name, 2063 is_log ? " [log]" : ""); 2064 2065 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, 2066 &child, &children) != 0) 2067 return; 2068 2069 for (c = 0; c < children; c++) { 2070 vname = zpool_vdev_name(hdl, NULL, child[c], VDEV_NAME_TYPE_ID); 2071 print_vdev_tree(hdl, vname, child[c], indent + 2); 2072 free(vname); 2073 } 2074 } 2075 2076 void 2077 zpool_print_unsup_feat(nvlist_t *config) 2078 { 2079 nvlist_t *nvinfo, *unsup_feat; 2080 2081 nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO); 2082 unsup_feat = fnvlist_lookup_nvlist(nvinfo, ZPOOL_CONFIG_UNSUP_FEAT); 2083 2084 for (nvpair_t *nvp = nvlist_next_nvpair(unsup_feat, NULL); 2085 nvp != NULL; nvp = nvlist_next_nvpair(unsup_feat, nvp)) { 2086 const char *desc = fnvpair_value_string(nvp); 2087 if (strlen(desc) > 0) 2088 (void) printf("\t%s (%s)\n", nvpair_name(nvp), desc); 2089 else 2090 (void) printf("\t%s\n", nvpair_name(nvp)); 2091 } 2092 } 2093 2094 /* 2095 * Import the given pool using the known configuration and a list of 2096 * properties to be set. The configuration should have come from 2097 * zpool_find_import(). The 'newname' parameters control whether the pool 2098 * is imported with a different name. 2099 */ 2100 int 2101 zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname, 2102 nvlist_t *props, int flags) 2103 { 2104 zfs_cmd_t zc = {"\0"}; 2105 zpool_load_policy_t policy; 2106 nvlist_t *nv = NULL; 2107 nvlist_t *nvinfo = NULL; 2108 nvlist_t *missing = NULL; 2109 const char *thename; 2110 const char *origname; 2111 int ret; 2112 int error = 0; 2113 char errbuf[ERRBUFLEN]; 2114 2115 origname = fnvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME); 2116 2117 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 2118 "cannot import pool '%s'"), origname); 2119 2120 if (newname != NULL) { 2121 if (!zpool_name_valid(hdl, B_FALSE, newname)) 2122 return (zfs_error_fmt(hdl, EZFS_INVALIDNAME, 2123 dgettext(TEXT_DOMAIN, "cannot import '%s'"), 2124 newname)); 2125 thename = newname; 2126 } else { 2127 thename = origname; 2128 } 2129 2130 if (props != NULL) { 2131 uint64_t version; 2132 prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE }; 2133 2134 version = fnvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION); 2135 2136 if ((props = zpool_valid_proplist(hdl, origname, 2137 props, version, flags, errbuf)) == NULL) 2138 return (-1); 2139 zcmd_write_src_nvlist(hdl, &zc, props); 2140 nvlist_free(props); 2141 } 2142 2143 (void) strlcpy(zc.zc_name, thename, sizeof (zc.zc_name)); 2144 2145 zc.zc_guid = fnvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID); 2146 2147 zcmd_write_conf_nvlist(hdl, &zc, config); 2148 zcmd_alloc_dst_nvlist(hdl, &zc, zc.zc_nvlist_conf_size * 2); 2149 2150 zc.zc_cookie = flags; 2151 while ((ret = zfs_ioctl(hdl, ZFS_IOC_POOL_IMPORT, &zc)) != 0 && 2152 errno == ENOMEM) 2153 zcmd_expand_dst_nvlist(hdl, &zc); 2154 if (ret != 0) 2155 error = errno; 2156 2157 (void) zcmd_read_dst_nvlist(hdl, &zc, &nv); 2158 2159 zcmd_free_nvlists(&zc); 2160 2161 zpool_get_load_policy(config, &policy); 2162 2163 if (error) { 2164 char desc[1024]; 2165 char aux[256]; 2166 2167 /* 2168 * Dry-run failed, but we print out what success 2169 * looks like if we found a best txg 2170 */ 2171 if (policy.zlp_rewind & ZPOOL_TRY_REWIND) { 2172 zpool_rewind_exclaim(hdl, newname ? origname : thename, 2173 B_TRUE, nv); 2174 nvlist_free(nv); 2175 return (-1); 2176 } 2177 2178 if (newname == NULL) 2179 (void) snprintf(desc, sizeof (desc), 2180 dgettext(TEXT_DOMAIN, "cannot import '%s'"), 2181 thename); 2182 else 2183 (void) snprintf(desc, sizeof (desc), 2184 dgettext(TEXT_DOMAIN, "cannot import '%s' as '%s'"), 2185 origname, thename); 2186 2187 switch (error) { 2188 case ENOTSUP: 2189 if (nv != NULL && nvlist_lookup_nvlist(nv, 2190 ZPOOL_CONFIG_LOAD_INFO, &nvinfo) == 0 && 2191 nvlist_exists(nvinfo, ZPOOL_CONFIG_UNSUP_FEAT)) { 2192 (void) printf(dgettext(TEXT_DOMAIN, "This " 2193 "pool uses the following feature(s) not " 2194 "supported by this system:\n")); 2195 zpool_print_unsup_feat(nv); 2196 if (nvlist_exists(nvinfo, 2197 ZPOOL_CONFIG_CAN_RDONLY)) { 2198 (void) printf(dgettext(TEXT_DOMAIN, 2199 "All unsupported features are only " 2200 "required for writing to the pool." 2201 "\nThe pool can be imported using " 2202 "'-o readonly=on'.\n")); 2203 } 2204 } 2205 /* 2206 * Unsupported version. 2207 */ 2208 (void) zfs_error(hdl, EZFS_BADVERSION, desc); 2209 break; 2210 2211 case EREMOTEIO: 2212 if (nv != NULL && nvlist_lookup_nvlist(nv, 2213 ZPOOL_CONFIG_LOAD_INFO, &nvinfo) == 0) { 2214 const char *hostname = "<unknown>"; 2215 uint64_t hostid = 0; 2216 mmp_state_t mmp_state; 2217 2218 mmp_state = fnvlist_lookup_uint64(nvinfo, 2219 ZPOOL_CONFIG_MMP_STATE); 2220 2221 if (nvlist_exists(nvinfo, 2222 ZPOOL_CONFIG_MMP_HOSTNAME)) 2223 hostname = fnvlist_lookup_string(nvinfo, 2224 ZPOOL_CONFIG_MMP_HOSTNAME); 2225 2226 if (nvlist_exists(nvinfo, 2227 ZPOOL_CONFIG_MMP_HOSTID)) 2228 hostid = fnvlist_lookup_uint64(nvinfo, 2229 ZPOOL_CONFIG_MMP_HOSTID); 2230 2231 if (mmp_state == MMP_STATE_ACTIVE) { 2232 (void) snprintf(aux, sizeof (aux), 2233 dgettext(TEXT_DOMAIN, "pool is imp" 2234 "orted on host '%s' (hostid=%lx).\n" 2235 "Export the pool on the other " 2236 "system, then run 'zpool import'."), 2237 hostname, (unsigned long) hostid); 2238 } else if (mmp_state == MMP_STATE_NO_HOSTID) { 2239 (void) snprintf(aux, sizeof (aux), 2240 dgettext(TEXT_DOMAIN, "pool has " 2241 "the multihost property on and " 2242 "the\nsystem's hostid is not set. " 2243 "Set a unique system hostid with " 2244 "the zgenhostid(8) command.\n")); 2245 } 2246 2247 (void) zfs_error_aux(hdl, "%s", aux); 2248 } 2249 (void) zfs_error(hdl, EZFS_ACTIVE_POOL, desc); 2250 break; 2251 2252 case EINVAL: 2253 (void) zfs_error(hdl, EZFS_INVALCONFIG, desc); 2254 break; 2255 2256 case EROFS: 2257 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2258 "one or more devices is read only")); 2259 (void) zfs_error(hdl, EZFS_BADDEV, desc); 2260 break; 2261 2262 case ENXIO: 2263 if (nv && nvlist_lookup_nvlist(nv, 2264 ZPOOL_CONFIG_LOAD_INFO, &nvinfo) == 0 && 2265 nvlist_lookup_nvlist(nvinfo, 2266 ZPOOL_CONFIG_MISSING_DEVICES, &missing) == 0) { 2267 (void) printf(dgettext(TEXT_DOMAIN, 2268 "The devices below are missing or " 2269 "corrupted, use '-m' to import the pool " 2270 "anyway:\n")); 2271 print_vdev_tree(hdl, NULL, missing, 2); 2272 (void) printf("\n"); 2273 } 2274 (void) zpool_standard_error(hdl, error, desc); 2275 break; 2276 2277 case EEXIST: 2278 (void) zpool_standard_error(hdl, error, desc); 2279 break; 2280 2281 case EBUSY: 2282 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2283 "one or more devices are already in use\n")); 2284 (void) zfs_error(hdl, EZFS_BADDEV, desc); 2285 break; 2286 case ENAMETOOLONG: 2287 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 2288 "new name of at least one dataset is longer than " 2289 "the maximum allowable length")); 2290 (void) zfs_error(hdl, EZFS_NAMETOOLONG, desc); 2291 break; 2292 default: 2293 (void) zpool_standard_error(hdl, error, desc); 2294 zpool_explain_recover(hdl, 2295 newname ? origname : thename, -error, nv); 2296 break; 2297 } 2298 2299 nvlist_free(nv); 2300 ret = -1; 2301 } else { 2302 zpool_handle_t *zhp; 2303 2304 /* 2305 * This should never fail, but play it safe anyway. 2306 */ 2307 if (zpool_open_silent(hdl, thename, &zhp) != 0) 2308 ret = -1; 2309 else if (zhp != NULL) 2310 zpool_close(zhp); 2311 if (policy.zlp_rewind & 2312 (ZPOOL_DO_REWIND | ZPOOL_TRY_REWIND)) { 2313 zpool_rewind_exclaim(hdl, newname ? origname : thename, 2314 ((policy.zlp_rewind & ZPOOL_TRY_REWIND) != 0), nv); 2315 } 2316 nvlist_free(nv); 2317 } 2318 2319 return (ret); 2320 } 2321 2322 /* 2323 * Translate vdev names to guids. If a vdev_path is determined to be 2324 * unsuitable then a vd_errlist is allocated and the vdev path and errno 2325 * are added to it. 2326 */ 2327 static int 2328 zpool_translate_vdev_guids(zpool_handle_t *zhp, nvlist_t *vds, 2329 nvlist_t *vdev_guids, nvlist_t *guids_to_paths, nvlist_t **vd_errlist) 2330 { 2331 nvlist_t *errlist = NULL; 2332 int error = 0; 2333 2334 for (nvpair_t *elem = nvlist_next_nvpair(vds, NULL); elem != NULL; 2335 elem = nvlist_next_nvpair(vds, elem)) { 2336 boolean_t spare, cache; 2337 2338 const char *vd_path = nvpair_name(elem); 2339 nvlist_t *tgt = zpool_find_vdev(zhp, vd_path, &spare, &cache, 2340 NULL); 2341 2342 if ((tgt == NULL) || cache || spare) { 2343 if (errlist == NULL) { 2344 errlist = fnvlist_alloc(); 2345 error = EINVAL; 2346 } 2347 2348 uint64_t err = (tgt == NULL) ? EZFS_NODEVICE : 2349 (spare ? EZFS_ISSPARE : EZFS_ISL2CACHE); 2350 fnvlist_add_int64(errlist, vd_path, err); 2351 continue; 2352 } 2353 2354 uint64_t guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 2355 fnvlist_add_uint64(vdev_guids, vd_path, guid); 2356 2357 char msg[MAXNAMELEN]; 2358 (void) snprintf(msg, sizeof (msg), "%llu", (u_longlong_t)guid); 2359 fnvlist_add_string(guids_to_paths, msg, vd_path); 2360 } 2361 2362 if (error != 0) { 2363 verify(errlist != NULL); 2364 if (vd_errlist != NULL) 2365 *vd_errlist = errlist; 2366 else 2367 fnvlist_free(errlist); 2368 } 2369 2370 return (error); 2371 } 2372 2373 static int 2374 xlate_init_err(int err) 2375 { 2376 switch (err) { 2377 case ENODEV: 2378 return (EZFS_NODEVICE); 2379 case EINVAL: 2380 case EROFS: 2381 return (EZFS_BADDEV); 2382 case EBUSY: 2383 return (EZFS_INITIALIZING); 2384 case ESRCH: 2385 return (EZFS_NO_INITIALIZE); 2386 } 2387 return (err); 2388 } 2389 2390 /* 2391 * Begin, suspend, cancel, or uninit (clear) the initialization (initializing 2392 * of all free blocks) for the given vdevs in the given pool. 2393 */ 2394 static int 2395 zpool_initialize_impl(zpool_handle_t *zhp, pool_initialize_func_t cmd_type, 2396 nvlist_t *vds, boolean_t wait) 2397 { 2398 int err; 2399 2400 nvlist_t *vdev_guids = fnvlist_alloc(); 2401 nvlist_t *guids_to_paths = fnvlist_alloc(); 2402 nvlist_t *vd_errlist = NULL; 2403 nvlist_t *errlist; 2404 nvpair_t *elem; 2405 2406 err = zpool_translate_vdev_guids(zhp, vds, vdev_guids, 2407 guids_to_paths, &vd_errlist); 2408 2409 if (err != 0) { 2410 verify(vd_errlist != NULL); 2411 goto list_errors; 2412 } 2413 2414 err = lzc_initialize(zhp->zpool_name, cmd_type, 2415 vdev_guids, &errlist); 2416 2417 if (err != 0) { 2418 if (errlist != NULL && nvlist_lookup_nvlist(errlist, 2419 ZPOOL_INITIALIZE_VDEVS, &vd_errlist) == 0) { 2420 goto list_errors; 2421 } 2422 2423 if (err == EINVAL && cmd_type == POOL_INITIALIZE_UNINIT) { 2424 zfs_error_aux(zhp->zpool_hdl, dgettext(TEXT_DOMAIN, 2425 "uninitialize is not supported by kernel")); 2426 } 2427 2428 (void) zpool_standard_error(zhp->zpool_hdl, err, 2429 dgettext(TEXT_DOMAIN, "operation failed")); 2430 goto out; 2431 } 2432 2433 if (wait) { 2434 for (elem = nvlist_next_nvpair(vdev_guids, NULL); elem != NULL; 2435 elem = nvlist_next_nvpair(vdev_guids, elem)) { 2436 2437 uint64_t guid = fnvpair_value_uint64(elem); 2438 2439 err = lzc_wait_tag(zhp->zpool_name, 2440 ZPOOL_WAIT_INITIALIZE, guid, NULL); 2441 if (err != 0) { 2442 (void) zpool_standard_error_fmt(zhp->zpool_hdl, 2443 err, dgettext(TEXT_DOMAIN, "error " 2444 "waiting for '%s' to initialize"), 2445 nvpair_name(elem)); 2446 2447 goto out; 2448 } 2449 } 2450 } 2451 goto out; 2452 2453 list_errors: 2454 for (elem = nvlist_next_nvpair(vd_errlist, NULL); elem != NULL; 2455 elem = nvlist_next_nvpair(vd_errlist, elem)) { 2456 int64_t vd_error = xlate_init_err(fnvpair_value_int64(elem)); 2457 const char *path; 2458 2459 if (nvlist_lookup_string(guids_to_paths, nvpair_name(elem), 2460 &path) != 0) 2461 path = nvpair_name(elem); 2462 2463 (void) zfs_error_fmt(zhp->zpool_hdl, vd_error, 2464 "cannot initialize '%s'", path); 2465 } 2466 2467 out: 2468 fnvlist_free(vdev_guids); 2469 fnvlist_free(guids_to_paths); 2470 2471 if (vd_errlist != NULL) 2472 fnvlist_free(vd_errlist); 2473 2474 return (err == 0 ? 0 : -1); 2475 } 2476 2477 int 2478 zpool_initialize(zpool_handle_t *zhp, pool_initialize_func_t cmd_type, 2479 nvlist_t *vds) 2480 { 2481 return (zpool_initialize_impl(zhp, cmd_type, vds, B_FALSE)); 2482 } 2483 2484 int 2485 zpool_initialize_wait(zpool_handle_t *zhp, pool_initialize_func_t cmd_type, 2486 nvlist_t *vds) 2487 { 2488 return (zpool_initialize_impl(zhp, cmd_type, vds, B_TRUE)); 2489 } 2490 2491 static int 2492 xlate_trim_err(int err) 2493 { 2494 switch (err) { 2495 case ENODEV: 2496 return (EZFS_NODEVICE); 2497 case EINVAL: 2498 case EROFS: 2499 return (EZFS_BADDEV); 2500 case EBUSY: 2501 return (EZFS_TRIMMING); 2502 case ESRCH: 2503 return (EZFS_NO_TRIM); 2504 case EOPNOTSUPP: 2505 return (EZFS_TRIM_NOTSUP); 2506 } 2507 return (err); 2508 } 2509 2510 static int 2511 zpool_trim_wait(zpool_handle_t *zhp, nvlist_t *vdev_guids) 2512 { 2513 int err; 2514 nvpair_t *elem; 2515 2516 for (elem = nvlist_next_nvpair(vdev_guids, NULL); elem != NULL; 2517 elem = nvlist_next_nvpair(vdev_guids, elem)) { 2518 2519 uint64_t guid = fnvpair_value_uint64(elem); 2520 2521 err = lzc_wait_tag(zhp->zpool_name, 2522 ZPOOL_WAIT_TRIM, guid, NULL); 2523 if (err != 0) { 2524 (void) zpool_standard_error_fmt(zhp->zpool_hdl, 2525 err, dgettext(TEXT_DOMAIN, "error " 2526 "waiting to trim '%s'"), nvpair_name(elem)); 2527 2528 return (err); 2529 } 2530 } 2531 return (0); 2532 } 2533 2534 /* 2535 * Check errlist and report any errors, omitting ones which should be 2536 * suppressed. Returns B_TRUE if any errors were reported. 2537 */ 2538 static boolean_t 2539 check_trim_errs(zpool_handle_t *zhp, trimflags_t *trim_flags, 2540 nvlist_t *guids_to_paths, nvlist_t *vds, nvlist_t *errlist) 2541 { 2542 nvpair_t *elem; 2543 boolean_t reported_errs = B_FALSE; 2544 int num_vds = 0; 2545 int num_suppressed_errs = 0; 2546 2547 for (elem = nvlist_next_nvpair(vds, NULL); 2548 elem != NULL; elem = nvlist_next_nvpair(vds, elem)) { 2549 num_vds++; 2550 } 2551 2552 for (elem = nvlist_next_nvpair(errlist, NULL); 2553 elem != NULL; elem = nvlist_next_nvpair(errlist, elem)) { 2554 int64_t vd_error = xlate_trim_err(fnvpair_value_int64(elem)); 2555 const char *path; 2556 2557 /* 2558 * If only the pool was specified, and it was not a secure 2559 * trim then suppress warnings for individual vdevs which 2560 * do not support trimming. 2561 */ 2562 if (vd_error == EZFS_TRIM_NOTSUP && 2563 trim_flags->fullpool && 2564 !trim_flags->secure) { 2565 num_suppressed_errs++; 2566 continue; 2567 } 2568 2569 reported_errs = B_TRUE; 2570 if (nvlist_lookup_string(guids_to_paths, nvpair_name(elem), 2571 &path) != 0) 2572 path = nvpair_name(elem); 2573 2574 (void) zfs_error_fmt(zhp->zpool_hdl, vd_error, 2575 "cannot trim '%s'", path); 2576 } 2577 2578 if (num_suppressed_errs == num_vds) { 2579 (void) zfs_error_aux(zhp->zpool_hdl, dgettext(TEXT_DOMAIN, 2580 "no devices in pool support trim operations")); 2581 (void) (zfs_error(zhp->zpool_hdl, EZFS_TRIM_NOTSUP, 2582 dgettext(TEXT_DOMAIN, "cannot trim"))); 2583 reported_errs = B_TRUE; 2584 } 2585 2586 return (reported_errs); 2587 } 2588 2589 /* 2590 * Begin, suspend, or cancel the TRIM (discarding of all free blocks) for 2591 * the given vdevs in the given pool. 2592 */ 2593 int 2594 zpool_trim(zpool_handle_t *zhp, pool_trim_func_t cmd_type, nvlist_t *vds, 2595 trimflags_t *trim_flags) 2596 { 2597 int err; 2598 int retval = 0; 2599 2600 nvlist_t *vdev_guids = fnvlist_alloc(); 2601 nvlist_t *guids_to_paths = fnvlist_alloc(); 2602 nvlist_t *errlist = NULL; 2603 2604 err = zpool_translate_vdev_guids(zhp, vds, vdev_guids, 2605 guids_to_paths, &errlist); 2606 if (err != 0) { 2607 check_trim_errs(zhp, trim_flags, guids_to_paths, vds, errlist); 2608 retval = -1; 2609 goto out; 2610 } 2611 2612 err = lzc_trim(zhp->zpool_name, cmd_type, trim_flags->rate, 2613 trim_flags->secure, vdev_guids, &errlist); 2614 if (err != 0) { 2615 nvlist_t *vd_errlist; 2616 if (errlist != NULL && nvlist_lookup_nvlist(errlist, 2617 ZPOOL_TRIM_VDEVS, &vd_errlist) == 0) { 2618 if (check_trim_errs(zhp, trim_flags, guids_to_paths, 2619 vds, vd_errlist)) { 2620 retval = -1; 2621 goto out; 2622 } 2623 } else { 2624 char errbuf[ERRBUFLEN]; 2625 2626 (void) snprintf(errbuf, sizeof (errbuf), 2627 dgettext(TEXT_DOMAIN, "operation failed")); 2628 zpool_standard_error(zhp->zpool_hdl, err, errbuf); 2629 retval = -1; 2630 goto out; 2631 } 2632 } 2633 2634 2635 if (trim_flags->wait) 2636 retval = zpool_trim_wait(zhp, vdev_guids); 2637 2638 out: 2639 if (errlist != NULL) 2640 fnvlist_free(errlist); 2641 fnvlist_free(vdev_guids); 2642 fnvlist_free(guids_to_paths); 2643 return (retval); 2644 } 2645 2646 /* 2647 * Scan the pool. 2648 */ 2649 int 2650 zpool_scan(zpool_handle_t *zhp, pool_scan_func_t func, pool_scrub_cmd_t cmd) 2651 { 2652 char errbuf[ERRBUFLEN]; 2653 int err; 2654 libzfs_handle_t *hdl = zhp->zpool_hdl; 2655 2656 nvlist_t *args = fnvlist_alloc(); 2657 fnvlist_add_uint64(args, "scan_type", (uint64_t)func); 2658 fnvlist_add_uint64(args, "scan_command", (uint64_t)cmd); 2659 2660 err = lzc_scrub(ZFS_IOC_POOL_SCRUB, zhp->zpool_name, args, NULL); 2661 fnvlist_free(args); 2662 2663 if (err == 0) { 2664 return (0); 2665 } else if (err == ZFS_ERR_IOC_CMD_UNAVAIL) { 2666 zfs_cmd_t zc = {"\0"}; 2667 (void) strlcpy(zc.zc_name, zhp->zpool_name, 2668 sizeof (zc.zc_name)); 2669 zc.zc_cookie = func; 2670 zc.zc_flags = cmd; 2671 2672 if (zfs_ioctl(hdl, ZFS_IOC_POOL_SCAN, &zc) == 0) 2673 return (0); 2674 } 2675 2676 /* 2677 * An ECANCELED on a scrub means one of the following: 2678 * 1. we resumed a paused scrub. 2679 * 2. we resumed a paused error scrub. 2680 * 3. Error scrub is not run because of no error log. 2681 */ 2682 if (err == ECANCELED && (func == POOL_SCAN_SCRUB || 2683 func == POOL_SCAN_ERRORSCRUB) && cmd == POOL_SCRUB_NORMAL) 2684 return (0); 2685 /* 2686 * The following cases have been handled here: 2687 * 1. Paused a scrub/error scrub if there is none in progress. 2688 */ 2689 if (err == ENOENT && func != POOL_SCAN_NONE && cmd == 2690 POOL_SCRUB_PAUSE) { 2691 return (0); 2692 } 2693 2694 ASSERT3U(func, >=, POOL_SCAN_NONE); 2695 ASSERT3U(func, <, POOL_SCAN_FUNCS); 2696 2697 if (func == POOL_SCAN_SCRUB || func == POOL_SCAN_ERRORSCRUB) { 2698 if (cmd == POOL_SCRUB_PAUSE) { 2699 (void) snprintf(errbuf, sizeof (errbuf), 2700 dgettext(TEXT_DOMAIN, "cannot pause scrubbing %s"), 2701 zhp->zpool_name); 2702 } else { 2703 assert(cmd == POOL_SCRUB_NORMAL); 2704 (void) snprintf(errbuf, sizeof (errbuf), 2705 dgettext(TEXT_DOMAIN, "cannot scrub %s"), 2706 zhp->zpool_name); 2707 } 2708 } else if (func == POOL_SCAN_RESILVER) { 2709 assert(cmd == POOL_SCRUB_NORMAL); 2710 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 2711 "cannot restart resilver on %s"), zhp->zpool_name); 2712 } else if (func == POOL_SCAN_NONE) { 2713 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 2714 "cannot cancel scrubbing %s"), zhp->zpool_name); 2715 } else { 2716 assert(!"unexpected result"); 2717 } 2718 2719 /* 2720 * With EBUSY, five cases are possible: 2721 * 2722 * Current state Requested 2723 * 1. Normal Scrub Running Normal Scrub or Error Scrub 2724 * 2. Normal Scrub Paused Error Scrub 2725 * 3. Normal Scrub Paused Pause Normal Scrub 2726 * 4. Error Scrub Running Normal Scrub or Error Scrub 2727 * 5. Error Scrub Paused Pause Error Scrub 2728 * 6. Resilvering Anything else 2729 */ 2730 if (err == EBUSY) { 2731 nvlist_t *nvroot; 2732 pool_scan_stat_t *ps = NULL; 2733 uint_t psc; 2734 2735 nvroot = fnvlist_lookup_nvlist(zhp->zpool_config, 2736 ZPOOL_CONFIG_VDEV_TREE); 2737 (void) nvlist_lookup_uint64_array(nvroot, 2738 ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&ps, &psc); 2739 if (ps && ps->pss_func == POOL_SCAN_SCRUB && 2740 ps->pss_state == DSS_SCANNING) { 2741 if (ps->pss_pass_scrub_pause == 0) { 2742 /* handles case 1 */ 2743 assert(cmd == POOL_SCRUB_NORMAL); 2744 return (zfs_error(hdl, EZFS_SCRUBBING, 2745 errbuf)); 2746 } else { 2747 if (func == POOL_SCAN_ERRORSCRUB) { 2748 /* handles case 2 */ 2749 ASSERT3U(cmd, ==, POOL_SCRUB_NORMAL); 2750 return (zfs_error(hdl, 2751 EZFS_SCRUB_PAUSED_TO_CANCEL, 2752 errbuf)); 2753 } else { 2754 /* handles case 3 */ 2755 ASSERT3U(func, ==, POOL_SCAN_SCRUB); 2756 ASSERT3U(cmd, ==, POOL_SCRUB_PAUSE); 2757 return (zfs_error(hdl, 2758 EZFS_SCRUB_PAUSED, errbuf)); 2759 } 2760 } 2761 } else if (ps && 2762 ps->pss_error_scrub_func == POOL_SCAN_ERRORSCRUB && 2763 ps->pss_error_scrub_state == DSS_ERRORSCRUBBING) { 2764 if (ps->pss_pass_error_scrub_pause == 0) { 2765 /* handles case 4 */ 2766 ASSERT3U(cmd, ==, POOL_SCRUB_NORMAL); 2767 return (zfs_error(hdl, EZFS_ERRORSCRUBBING, 2768 errbuf)); 2769 } else { 2770 /* handles case 5 */ 2771 ASSERT3U(func, ==, POOL_SCAN_ERRORSCRUB); 2772 ASSERT3U(cmd, ==, POOL_SCRUB_PAUSE); 2773 return (zfs_error(hdl, EZFS_ERRORSCRUB_PAUSED, 2774 errbuf)); 2775 } 2776 } else { 2777 /* handles case 6 */ 2778 return (zfs_error(hdl, EZFS_RESILVERING, errbuf)); 2779 } 2780 } else if (err == ENOENT) { 2781 return (zfs_error(hdl, EZFS_NO_SCRUB, errbuf)); 2782 } else if (err == ENOTSUP && func == POOL_SCAN_RESILVER) { 2783 return (zfs_error(hdl, EZFS_NO_RESILVER_DEFER, errbuf)); 2784 } else { 2785 return (zpool_standard_error(hdl, err, errbuf)); 2786 } 2787 } 2788 2789 /* 2790 * Find a vdev that matches the search criteria specified. We use the 2791 * the nvpair name to determine how we should look for the device. 2792 * 'avail_spare' is set to TRUE if the provided guid refers to an AVAIL 2793 * spare; but FALSE if its an INUSE spare. 2794 */ 2795 static nvlist_t * 2796 vdev_to_nvlist_iter(nvlist_t *nv, nvlist_t *search, boolean_t *avail_spare, 2797 boolean_t *l2cache, boolean_t *log) 2798 { 2799 uint_t c, children; 2800 nvlist_t **child; 2801 nvlist_t *ret; 2802 uint64_t is_log; 2803 const char *srchkey; 2804 nvpair_t *pair = nvlist_next_nvpair(search, NULL); 2805 2806 /* Nothing to look for */ 2807 if (search == NULL || pair == NULL) 2808 return (NULL); 2809 2810 /* Obtain the key we will use to search */ 2811 srchkey = nvpair_name(pair); 2812 2813 switch (nvpair_type(pair)) { 2814 case DATA_TYPE_UINT64: 2815 if (strcmp(srchkey, ZPOOL_CONFIG_GUID) == 0) { 2816 uint64_t srchval = fnvpair_value_uint64(pair); 2817 uint64_t theguid = fnvlist_lookup_uint64(nv, 2818 ZPOOL_CONFIG_GUID); 2819 if (theguid == srchval) 2820 return (nv); 2821 } 2822 break; 2823 2824 case DATA_TYPE_STRING: { 2825 const char *srchval, *val; 2826 2827 srchval = fnvpair_value_string(pair); 2828 if (nvlist_lookup_string(nv, srchkey, &val) != 0) 2829 break; 2830 2831 /* 2832 * Search for the requested value. Special cases: 2833 * 2834 * - ZPOOL_CONFIG_PATH for whole disk entries. These end in 2835 * "-part1", or "p1". The suffix is hidden from the user, 2836 * but included in the string, so this matches around it. 2837 * - ZPOOL_CONFIG_PATH for short names zfs_strcmp_shortname() 2838 * is used to check all possible expanded paths. 2839 * - looking for a top-level vdev name (i.e. ZPOOL_CONFIG_TYPE). 2840 * 2841 * Otherwise, all other searches are simple string compares. 2842 */ 2843 if (strcmp(srchkey, ZPOOL_CONFIG_PATH) == 0) { 2844 uint64_t wholedisk = 0; 2845 2846 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, 2847 &wholedisk); 2848 if (zfs_strcmp_pathname(srchval, val, wholedisk) == 0) 2849 return (nv); 2850 2851 } else if (strcmp(srchkey, ZPOOL_CONFIG_TYPE) == 0) { 2852 char *type, *idx, *end, *p; 2853 uint64_t id, vdev_id; 2854 2855 /* 2856 * Determine our vdev type, keeping in mind 2857 * that the srchval is composed of a type and 2858 * vdev id pair (i.e. mirror-4). 2859 */ 2860 if ((type = strdup(srchval)) == NULL) 2861 return (NULL); 2862 2863 if ((p = strrchr(type, '-')) == NULL) { 2864 free(type); 2865 break; 2866 } 2867 idx = p + 1; 2868 *p = '\0'; 2869 2870 /* 2871 * If the types don't match then keep looking. 2872 */ 2873 if (strncmp(val, type, strlen(val)) != 0) { 2874 free(type); 2875 break; 2876 } 2877 2878 verify(zpool_vdev_is_interior(type)); 2879 2880 id = fnvlist_lookup_uint64(nv, ZPOOL_CONFIG_ID); 2881 errno = 0; 2882 vdev_id = strtoull(idx, &end, 10); 2883 2884 /* 2885 * If we are looking for a raidz and a parity is 2886 * specified, make sure it matches. 2887 */ 2888 int rzlen = strlen(VDEV_TYPE_RAIDZ); 2889 assert(rzlen == strlen(VDEV_TYPE_DRAID)); 2890 int typlen = strlen(type); 2891 if ((strncmp(type, VDEV_TYPE_RAIDZ, rzlen) == 0 || 2892 strncmp(type, VDEV_TYPE_DRAID, rzlen) == 0) && 2893 typlen != rzlen) { 2894 uint64_t vdev_parity; 2895 int parity = *(type + rzlen) - '0'; 2896 2897 if (parity <= 0 || parity > 3 || 2898 (typlen - rzlen) != 1) { 2899 /* 2900 * Nonsense parity specified, can 2901 * never match 2902 */ 2903 free(type); 2904 return (NULL); 2905 } 2906 vdev_parity = fnvlist_lookup_uint64(nv, 2907 ZPOOL_CONFIG_NPARITY); 2908 if ((int)vdev_parity != parity) { 2909 free(type); 2910 break; 2911 } 2912 } 2913 2914 free(type); 2915 if (errno != 0) 2916 return (NULL); 2917 2918 /* 2919 * Now verify that we have the correct vdev id. 2920 */ 2921 if (vdev_id == id) 2922 return (nv); 2923 } 2924 2925 /* 2926 * Common case 2927 */ 2928 if (strcmp(srchval, val) == 0) 2929 return (nv); 2930 break; 2931 } 2932 2933 default: 2934 break; 2935 } 2936 2937 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, 2938 &child, &children) != 0) 2939 return (NULL); 2940 2941 for (c = 0; c < children; c++) { 2942 if ((ret = vdev_to_nvlist_iter(child[c], search, 2943 avail_spare, l2cache, NULL)) != NULL) { 2944 /* 2945 * The 'is_log' value is only set for the toplevel 2946 * vdev, not the leaf vdevs. So we always lookup the 2947 * log device from the root of the vdev tree (where 2948 * 'log' is non-NULL). 2949 */ 2950 if (log != NULL && 2951 nvlist_lookup_uint64(child[c], 2952 ZPOOL_CONFIG_IS_LOG, &is_log) == 0 && 2953 is_log) { 2954 *log = B_TRUE; 2955 } 2956 return (ret); 2957 } 2958 } 2959 2960 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES, 2961 &child, &children) == 0) { 2962 for (c = 0; c < children; c++) { 2963 if ((ret = vdev_to_nvlist_iter(child[c], search, 2964 avail_spare, l2cache, NULL)) != NULL) { 2965 *avail_spare = B_TRUE; 2966 return (ret); 2967 } 2968 } 2969 } 2970 2971 if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE, 2972 &child, &children) == 0) { 2973 for (c = 0; c < children; c++) { 2974 if ((ret = vdev_to_nvlist_iter(child[c], search, 2975 avail_spare, l2cache, NULL)) != NULL) { 2976 *l2cache = B_TRUE; 2977 return (ret); 2978 } 2979 } 2980 } 2981 2982 return (NULL); 2983 } 2984 2985 /* 2986 * Given a physical path or guid, find the associated vdev. 2987 */ 2988 nvlist_t * 2989 zpool_find_vdev_by_physpath(zpool_handle_t *zhp, const char *ppath, 2990 boolean_t *avail_spare, boolean_t *l2cache, boolean_t *log) 2991 { 2992 nvlist_t *search, *nvroot, *ret; 2993 uint64_t guid; 2994 char *end; 2995 2996 search = fnvlist_alloc(); 2997 2998 guid = strtoull(ppath, &end, 0); 2999 if (guid != 0 && *end == '\0') { 3000 fnvlist_add_uint64(search, ZPOOL_CONFIG_GUID, guid); 3001 } else { 3002 fnvlist_add_string(search, ZPOOL_CONFIG_PHYS_PATH, ppath); 3003 } 3004 3005 nvroot = fnvlist_lookup_nvlist(zhp->zpool_config, 3006 ZPOOL_CONFIG_VDEV_TREE); 3007 3008 *avail_spare = B_FALSE; 3009 *l2cache = B_FALSE; 3010 if (log != NULL) 3011 *log = B_FALSE; 3012 ret = vdev_to_nvlist_iter(nvroot, search, avail_spare, l2cache, log); 3013 fnvlist_free(search); 3014 3015 return (ret); 3016 } 3017 3018 /* 3019 * Determine if we have an "interior" top-level vdev (i.e mirror/raidz). 3020 */ 3021 static boolean_t 3022 zpool_vdev_is_interior(const char *name) 3023 { 3024 if (strncmp(name, VDEV_TYPE_RAIDZ, strlen(VDEV_TYPE_RAIDZ)) == 0 || 3025 strncmp(name, VDEV_TYPE_SPARE, strlen(VDEV_TYPE_SPARE)) == 0 || 3026 strncmp(name, 3027 VDEV_TYPE_REPLACING, strlen(VDEV_TYPE_REPLACING)) == 0 || 3028 strncmp(name, VDEV_TYPE_ROOT, strlen(VDEV_TYPE_ROOT)) == 0 || 3029 strncmp(name, VDEV_TYPE_MIRROR, strlen(VDEV_TYPE_MIRROR)) == 0) 3030 return (B_TRUE); 3031 3032 if (strncmp(name, VDEV_TYPE_DRAID, strlen(VDEV_TYPE_DRAID)) == 0 && 3033 !zpool_is_draid_spare(name)) 3034 return (B_TRUE); 3035 3036 return (B_FALSE); 3037 } 3038 3039 nvlist_t * 3040 zpool_find_vdev(zpool_handle_t *zhp, const char *path, boolean_t *avail_spare, 3041 boolean_t *l2cache, boolean_t *log) 3042 { 3043 char *end; 3044 nvlist_t *nvroot, *search, *ret; 3045 uint64_t guid; 3046 3047 search = fnvlist_alloc(); 3048 3049 guid = strtoull(path, &end, 0); 3050 if (guid != 0 && *end == '\0') { 3051 fnvlist_add_uint64(search, ZPOOL_CONFIG_GUID, guid); 3052 } else if (zpool_vdev_is_interior(path)) { 3053 fnvlist_add_string(search, ZPOOL_CONFIG_TYPE, path); 3054 } else { 3055 fnvlist_add_string(search, ZPOOL_CONFIG_PATH, path); 3056 } 3057 3058 nvroot = fnvlist_lookup_nvlist(zhp->zpool_config, 3059 ZPOOL_CONFIG_VDEV_TREE); 3060 3061 *avail_spare = B_FALSE; 3062 *l2cache = B_FALSE; 3063 if (log != NULL) 3064 *log = B_FALSE; 3065 ret = vdev_to_nvlist_iter(nvroot, search, avail_spare, l2cache, log); 3066 fnvlist_free(search); 3067 3068 return (ret); 3069 } 3070 3071 /* 3072 * Convert a vdev path to a GUID. Returns GUID or 0 on error. 3073 * 3074 * If is_spare, is_l2cache, or is_log is non-NULL, then store within it 3075 * if the VDEV is a spare, l2cache, or log device. If they're NULL then 3076 * ignore them. 3077 */ 3078 static uint64_t 3079 zpool_vdev_path_to_guid_impl(zpool_handle_t *zhp, const char *path, 3080 boolean_t *is_spare, boolean_t *is_l2cache, boolean_t *is_log) 3081 { 3082 boolean_t spare = B_FALSE, l2cache = B_FALSE, log = B_FALSE; 3083 nvlist_t *tgt; 3084 3085 if ((tgt = zpool_find_vdev(zhp, path, &spare, &l2cache, 3086 &log)) == NULL) 3087 return (0); 3088 3089 if (is_spare != NULL) 3090 *is_spare = spare; 3091 if (is_l2cache != NULL) 3092 *is_l2cache = l2cache; 3093 if (is_log != NULL) 3094 *is_log = log; 3095 3096 return (fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID)); 3097 } 3098 3099 /* Convert a vdev path to a GUID. Returns GUID or 0 on error. */ 3100 uint64_t 3101 zpool_vdev_path_to_guid(zpool_handle_t *zhp, const char *path) 3102 { 3103 return (zpool_vdev_path_to_guid_impl(zhp, path, NULL, NULL, NULL)); 3104 } 3105 3106 /* 3107 * Bring the specified vdev online. The 'flags' parameter is a set of the 3108 * ZFS_ONLINE_* flags. 3109 */ 3110 int 3111 zpool_vdev_online(zpool_handle_t *zhp, const char *path, int flags, 3112 vdev_state_t *newstate) 3113 { 3114 zfs_cmd_t zc = {"\0"}; 3115 char errbuf[ERRBUFLEN]; 3116 nvlist_t *tgt; 3117 boolean_t avail_spare, l2cache, islog; 3118 libzfs_handle_t *hdl = zhp->zpool_hdl; 3119 3120 if (flags & ZFS_ONLINE_EXPAND) { 3121 (void) snprintf(errbuf, sizeof (errbuf), 3122 dgettext(TEXT_DOMAIN, "cannot expand %s"), path); 3123 } else { 3124 (void) snprintf(errbuf, sizeof (errbuf), 3125 dgettext(TEXT_DOMAIN, "cannot online %s"), path); 3126 } 3127 3128 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3129 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 3130 &islog)) == NULL) 3131 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3132 3133 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3134 3135 if (!(flags & ZFS_ONLINE_SPARE) && avail_spare) 3136 return (zfs_error(hdl, EZFS_ISSPARE, errbuf)); 3137 3138 #ifndef __FreeBSD__ 3139 const char *pathname; 3140 if ((flags & ZFS_ONLINE_EXPAND || 3141 zpool_get_prop_int(zhp, ZPOOL_PROP_AUTOEXPAND, NULL)) && 3142 nvlist_lookup_string(tgt, ZPOOL_CONFIG_PATH, &pathname) == 0) { 3143 uint64_t wholedisk = 0; 3144 3145 (void) nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_WHOLE_DISK, 3146 &wholedisk); 3147 3148 /* 3149 * XXX - L2ARC 1.0 devices can't support expansion. 3150 */ 3151 if (l2cache) { 3152 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3153 "cannot expand cache devices")); 3154 return (zfs_error(hdl, EZFS_VDEVNOTSUP, errbuf)); 3155 } 3156 3157 if (wholedisk) { 3158 const char *fullpath = path; 3159 char buf[MAXPATHLEN]; 3160 int error; 3161 3162 if (path[0] != '/') { 3163 error = zfs_resolve_shortname(path, buf, 3164 sizeof (buf)); 3165 if (error != 0) 3166 return (zfs_error(hdl, EZFS_NODEVICE, 3167 errbuf)); 3168 3169 fullpath = buf; 3170 } 3171 3172 error = zpool_relabel_disk(hdl, fullpath, errbuf); 3173 if (error != 0) 3174 return (error); 3175 } 3176 } 3177 #endif 3178 3179 zc.zc_cookie = VDEV_STATE_ONLINE; 3180 zc.zc_obj = flags; 3181 3182 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) != 0) { 3183 if (errno == EINVAL) { 3184 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "was split " 3185 "from this pool into a new one. Use '%s' " 3186 "instead"), "zpool detach"); 3187 return (zfs_error(hdl, EZFS_POSTSPLIT_ONLINE, errbuf)); 3188 } 3189 return (zpool_standard_error(hdl, errno, errbuf)); 3190 } 3191 3192 *newstate = zc.zc_cookie; 3193 return (0); 3194 } 3195 3196 /* 3197 * Take the specified vdev offline 3198 */ 3199 int 3200 zpool_vdev_offline(zpool_handle_t *zhp, const char *path, boolean_t istmp) 3201 { 3202 zfs_cmd_t zc = {"\0"}; 3203 char errbuf[ERRBUFLEN]; 3204 nvlist_t *tgt; 3205 boolean_t avail_spare, l2cache; 3206 libzfs_handle_t *hdl = zhp->zpool_hdl; 3207 3208 (void) snprintf(errbuf, sizeof (errbuf), 3209 dgettext(TEXT_DOMAIN, "cannot offline %s"), path); 3210 3211 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3212 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 3213 NULL)) == NULL) 3214 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3215 3216 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3217 3218 if (avail_spare) 3219 return (zfs_error(hdl, EZFS_ISSPARE, errbuf)); 3220 3221 zc.zc_cookie = VDEV_STATE_OFFLINE; 3222 zc.zc_obj = istmp ? ZFS_OFFLINE_TEMPORARY : 0; 3223 3224 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 3225 return (0); 3226 3227 switch (errno) { 3228 case EBUSY: 3229 3230 /* 3231 * There are no other replicas of this device. 3232 */ 3233 return (zfs_error(hdl, EZFS_NOREPLICAS, errbuf)); 3234 3235 case EEXIST: 3236 /* 3237 * The log device has unplayed logs 3238 */ 3239 return (zfs_error(hdl, EZFS_UNPLAYED_LOGS, errbuf)); 3240 3241 default: 3242 return (zpool_standard_error(hdl, errno, errbuf)); 3243 } 3244 } 3245 3246 /* 3247 * Remove the specified vdev asynchronously from the configuration, so 3248 * that it may come ONLINE if reinserted. This is called from zed on 3249 * Udev remove event. 3250 * Note: We also have a similar function zpool_vdev_remove() that 3251 * removes the vdev from the pool. 3252 */ 3253 int 3254 zpool_vdev_remove_wanted(zpool_handle_t *zhp, const char *path) 3255 { 3256 zfs_cmd_t zc = {"\0"}; 3257 char errbuf[ERRBUFLEN]; 3258 nvlist_t *tgt; 3259 boolean_t avail_spare, l2cache; 3260 libzfs_handle_t *hdl = zhp->zpool_hdl; 3261 3262 (void) snprintf(errbuf, sizeof (errbuf), 3263 dgettext(TEXT_DOMAIN, "cannot remove %s"), path); 3264 3265 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3266 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 3267 NULL)) == NULL) 3268 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3269 3270 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3271 3272 zc.zc_cookie = VDEV_STATE_REMOVED; 3273 3274 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 3275 return (0); 3276 3277 return (zpool_standard_error(hdl, errno, errbuf)); 3278 } 3279 3280 /* 3281 * Mark the given vdev faulted. 3282 */ 3283 int 3284 zpool_vdev_fault(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux) 3285 { 3286 zfs_cmd_t zc = {"\0"}; 3287 char errbuf[ERRBUFLEN]; 3288 libzfs_handle_t *hdl = zhp->zpool_hdl; 3289 3290 (void) snprintf(errbuf, sizeof (errbuf), 3291 dgettext(TEXT_DOMAIN, "cannot fault %llu"), (u_longlong_t)guid); 3292 3293 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3294 zc.zc_guid = guid; 3295 zc.zc_cookie = VDEV_STATE_FAULTED; 3296 zc.zc_obj = aux; 3297 3298 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 3299 return (0); 3300 3301 switch (errno) { 3302 case EBUSY: 3303 3304 /* 3305 * There are no other replicas of this device. 3306 */ 3307 return (zfs_error(hdl, EZFS_NOREPLICAS, errbuf)); 3308 3309 default: 3310 return (zpool_standard_error(hdl, errno, errbuf)); 3311 } 3312 3313 } 3314 3315 /* 3316 * Mark the given vdev degraded. 3317 */ 3318 int 3319 zpool_vdev_degrade(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux) 3320 { 3321 zfs_cmd_t zc = {"\0"}; 3322 char errbuf[ERRBUFLEN]; 3323 libzfs_handle_t *hdl = zhp->zpool_hdl; 3324 3325 (void) snprintf(errbuf, sizeof (errbuf), 3326 dgettext(TEXT_DOMAIN, "cannot degrade %llu"), (u_longlong_t)guid); 3327 3328 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3329 zc.zc_guid = guid; 3330 zc.zc_cookie = VDEV_STATE_DEGRADED; 3331 zc.zc_obj = aux; 3332 3333 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 3334 return (0); 3335 3336 return (zpool_standard_error(hdl, errno, errbuf)); 3337 } 3338 3339 /* 3340 * Returns TRUE if the given nvlist is a vdev that was originally swapped in as 3341 * a hot spare. 3342 */ 3343 static boolean_t 3344 is_replacing_spare(nvlist_t *search, nvlist_t *tgt, int which) 3345 { 3346 nvlist_t **child; 3347 uint_t c, children; 3348 3349 if (nvlist_lookup_nvlist_array(search, ZPOOL_CONFIG_CHILDREN, &child, 3350 &children) == 0) { 3351 const char *type = fnvlist_lookup_string(search, 3352 ZPOOL_CONFIG_TYPE); 3353 if ((strcmp(type, VDEV_TYPE_SPARE) == 0 || 3354 strcmp(type, VDEV_TYPE_DRAID_SPARE) == 0) && 3355 children == 2 && child[which] == tgt) 3356 return (B_TRUE); 3357 3358 for (c = 0; c < children; c++) 3359 if (is_replacing_spare(child[c], tgt, which)) 3360 return (B_TRUE); 3361 } 3362 3363 return (B_FALSE); 3364 } 3365 3366 /* 3367 * Attach new_disk (fully described by nvroot) to old_disk. 3368 * If 'replacing' is specified, the new disk will replace the old one. 3369 */ 3370 int 3371 zpool_vdev_attach(zpool_handle_t *zhp, const char *old_disk, 3372 const char *new_disk, nvlist_t *nvroot, int replacing, boolean_t rebuild) 3373 { 3374 zfs_cmd_t zc = {"\0"}; 3375 char errbuf[ERRBUFLEN]; 3376 int ret; 3377 nvlist_t *tgt; 3378 boolean_t avail_spare, l2cache, islog; 3379 uint64_t val; 3380 char *newname; 3381 nvlist_t **child; 3382 uint_t children; 3383 nvlist_t *config_root; 3384 libzfs_handle_t *hdl = zhp->zpool_hdl; 3385 3386 if (replacing) 3387 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3388 "cannot replace %s with %s"), old_disk, new_disk); 3389 else 3390 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3391 "cannot attach %s to %s"), new_disk, old_disk); 3392 3393 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3394 if ((tgt = zpool_find_vdev(zhp, old_disk, &avail_spare, &l2cache, 3395 &islog)) == NULL) 3396 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3397 3398 if (avail_spare) 3399 return (zfs_error(hdl, EZFS_ISSPARE, errbuf)); 3400 3401 if (l2cache) 3402 return (zfs_error(hdl, EZFS_ISL2CACHE, errbuf)); 3403 3404 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3405 zc.zc_cookie = replacing; 3406 zc.zc_simple = rebuild; 3407 3408 if (rebuild && 3409 zfeature_lookup_guid("org.openzfs:device_rebuild", NULL) != 0) { 3410 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3411 "the loaded zfs module doesn't support device rebuilds")); 3412 return (zfs_error(hdl, EZFS_POOL_NOTSUP, errbuf)); 3413 } 3414 3415 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, 3416 &child, &children) != 0 || children != 1) { 3417 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3418 "new device must be a single disk")); 3419 return (zfs_error(hdl, EZFS_INVALCONFIG, errbuf)); 3420 } 3421 3422 config_root = fnvlist_lookup_nvlist(zpool_get_config(zhp, NULL), 3423 ZPOOL_CONFIG_VDEV_TREE); 3424 3425 if ((newname = zpool_vdev_name(NULL, NULL, child[0], 0)) == NULL) 3426 return (-1); 3427 3428 /* 3429 * If the target is a hot spare that has been swapped in, we can only 3430 * replace it with another hot spare. 3431 */ 3432 if (replacing && 3433 nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_IS_SPARE, &val) == 0 && 3434 (zpool_find_vdev(zhp, newname, &avail_spare, &l2cache, 3435 NULL) == NULL || !avail_spare) && 3436 is_replacing_spare(config_root, tgt, 1)) { 3437 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3438 "can only be replaced by another hot spare")); 3439 free(newname); 3440 return (zfs_error(hdl, EZFS_BADTARGET, errbuf)); 3441 } 3442 3443 free(newname); 3444 3445 zcmd_write_conf_nvlist(hdl, &zc, nvroot); 3446 3447 ret = zfs_ioctl(hdl, ZFS_IOC_VDEV_ATTACH, &zc); 3448 3449 zcmd_free_nvlists(&zc); 3450 3451 if (ret == 0) 3452 return (0); 3453 3454 switch (errno) { 3455 case ENOTSUP: 3456 /* 3457 * Can't attach to or replace this type of vdev. 3458 */ 3459 if (replacing) { 3460 uint64_t version = zpool_get_prop_int(zhp, 3461 ZPOOL_PROP_VERSION, NULL); 3462 3463 if (islog) { 3464 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3465 "cannot replace a log with a spare")); 3466 } else if (rebuild) { 3467 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3468 "only mirror and dRAID vdevs support " 3469 "sequential reconstruction")); 3470 } else if (zpool_is_draid_spare(new_disk)) { 3471 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3472 "dRAID spares can only replace child " 3473 "devices in their parent's dRAID vdev")); 3474 } else if (version >= SPA_VERSION_MULTI_REPLACE) { 3475 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3476 "already in replacing/spare config; wait " 3477 "for completion or use 'zpool detach'")); 3478 } else { 3479 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3480 "cannot replace a replacing device")); 3481 } 3482 } else { 3483 char status[64] = {0}; 3484 zpool_prop_get_feature(zhp, 3485 "feature@device_rebuild", status, 63); 3486 if (rebuild && 3487 strncmp(status, ZFS_FEATURE_DISABLED, 64) == 0) { 3488 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3489 "device_rebuild feature must be enabled " 3490 "in order to use sequential " 3491 "reconstruction")); 3492 } else { 3493 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3494 "can only attach to mirrors and top-level " 3495 "disks")); 3496 } 3497 } 3498 (void) zfs_error(hdl, EZFS_BADTARGET, errbuf); 3499 break; 3500 3501 case EINVAL: 3502 /* 3503 * The new device must be a single disk. 3504 */ 3505 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3506 "new device must be a single disk")); 3507 (void) zfs_error(hdl, EZFS_INVALCONFIG, errbuf); 3508 break; 3509 3510 case EBUSY: 3511 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "%s is busy, " 3512 "or device removal is in progress"), 3513 new_disk); 3514 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 3515 break; 3516 3517 case EOVERFLOW: 3518 /* 3519 * The new device is too small. 3520 */ 3521 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3522 "device is too small")); 3523 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 3524 break; 3525 3526 case EDOM: 3527 /* 3528 * The new device has a different optimal sector size. 3529 */ 3530 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3531 "new device has a different optimal sector size; use the " 3532 "option '-o ashift=N' to override the optimal size")); 3533 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 3534 break; 3535 3536 case ENAMETOOLONG: 3537 /* 3538 * The resulting top-level vdev spec won't fit in the label. 3539 */ 3540 (void) zfs_error(hdl, EZFS_DEVOVERFLOW, errbuf); 3541 break; 3542 3543 default: 3544 (void) zpool_standard_error(hdl, errno, errbuf); 3545 } 3546 3547 return (-1); 3548 } 3549 3550 /* 3551 * Detach the specified device. 3552 */ 3553 int 3554 zpool_vdev_detach(zpool_handle_t *zhp, const char *path) 3555 { 3556 zfs_cmd_t zc = {"\0"}; 3557 char errbuf[ERRBUFLEN]; 3558 nvlist_t *tgt; 3559 boolean_t avail_spare, l2cache; 3560 libzfs_handle_t *hdl = zhp->zpool_hdl; 3561 3562 (void) snprintf(errbuf, sizeof (errbuf), 3563 dgettext(TEXT_DOMAIN, "cannot detach %s"), path); 3564 3565 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3566 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 3567 NULL)) == NULL) 3568 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3569 3570 if (avail_spare) 3571 return (zfs_error(hdl, EZFS_ISSPARE, errbuf)); 3572 3573 if (l2cache) 3574 return (zfs_error(hdl, EZFS_ISL2CACHE, errbuf)); 3575 3576 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3577 3578 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_DETACH, &zc) == 0) 3579 return (0); 3580 3581 switch (errno) { 3582 3583 case ENOTSUP: 3584 /* 3585 * Can't detach from this type of vdev. 3586 */ 3587 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "only " 3588 "applicable to mirror and replacing vdevs")); 3589 (void) zfs_error(hdl, EZFS_BADTARGET, errbuf); 3590 break; 3591 3592 case EBUSY: 3593 /* 3594 * There are no other replicas of this device. 3595 */ 3596 (void) zfs_error(hdl, EZFS_NOREPLICAS, errbuf); 3597 break; 3598 3599 default: 3600 (void) zpool_standard_error(hdl, errno, errbuf); 3601 } 3602 3603 return (-1); 3604 } 3605 3606 /* 3607 * Find a mirror vdev in the source nvlist. 3608 * 3609 * The mchild array contains a list of disks in one of the top-level mirrors 3610 * of the source pool. The schild array contains a list of disks that the 3611 * user specified on the command line. We loop over the mchild array to 3612 * see if any entry in the schild array matches. 3613 * 3614 * If a disk in the mchild array is found in the schild array, we return 3615 * the index of that entry. Otherwise we return -1. 3616 */ 3617 static int 3618 find_vdev_entry(zpool_handle_t *zhp, nvlist_t **mchild, uint_t mchildren, 3619 nvlist_t **schild, uint_t schildren) 3620 { 3621 uint_t mc; 3622 3623 for (mc = 0; mc < mchildren; mc++) { 3624 uint_t sc; 3625 char *mpath = zpool_vdev_name(zhp->zpool_hdl, zhp, 3626 mchild[mc], 0); 3627 3628 for (sc = 0; sc < schildren; sc++) { 3629 char *spath = zpool_vdev_name(zhp->zpool_hdl, zhp, 3630 schild[sc], 0); 3631 boolean_t result = (strcmp(mpath, spath) == 0); 3632 3633 free(spath); 3634 if (result) { 3635 free(mpath); 3636 return (mc); 3637 } 3638 } 3639 3640 free(mpath); 3641 } 3642 3643 return (-1); 3644 } 3645 3646 /* 3647 * Split a mirror pool. If newroot points to null, then a new nvlist 3648 * is generated and it is the responsibility of the caller to free it. 3649 */ 3650 int 3651 zpool_vdev_split(zpool_handle_t *zhp, char *newname, nvlist_t **newroot, 3652 nvlist_t *props, splitflags_t flags) 3653 { 3654 zfs_cmd_t zc = {"\0"}; 3655 char errbuf[ERRBUFLEN]; 3656 const char *bias; 3657 nvlist_t *tree, *config, **child, **newchild, *newconfig = NULL; 3658 nvlist_t **varray = NULL, *zc_props = NULL; 3659 uint_t c, children, newchildren, lastlog = 0, vcount, found = 0; 3660 libzfs_handle_t *hdl = zhp->zpool_hdl; 3661 uint64_t vers, readonly = B_FALSE; 3662 boolean_t freelist = B_FALSE, memory_err = B_TRUE; 3663 int retval = 0; 3664 3665 (void) snprintf(errbuf, sizeof (errbuf), 3666 dgettext(TEXT_DOMAIN, "Unable to split %s"), zhp->zpool_name); 3667 3668 if (!zpool_name_valid(hdl, B_FALSE, newname)) 3669 return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3670 3671 if ((config = zpool_get_config(zhp, NULL)) == NULL) { 3672 (void) fprintf(stderr, gettext("Internal error: unable to " 3673 "retrieve pool configuration\n")); 3674 return (-1); 3675 } 3676 3677 tree = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE); 3678 vers = fnvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION); 3679 3680 if (props) { 3681 prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE }; 3682 if ((zc_props = zpool_valid_proplist(hdl, zhp->zpool_name, 3683 props, vers, flags, errbuf)) == NULL) 3684 return (-1); 3685 (void) nvlist_lookup_uint64(zc_props, 3686 zpool_prop_to_name(ZPOOL_PROP_READONLY), &readonly); 3687 if (readonly) { 3688 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3689 "property %s can only be set at import time"), 3690 zpool_prop_to_name(ZPOOL_PROP_READONLY)); 3691 return (-1); 3692 } 3693 } 3694 3695 if (nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child, 3696 &children) != 0) { 3697 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3698 "Source pool is missing vdev tree")); 3699 nvlist_free(zc_props); 3700 return (-1); 3701 } 3702 3703 varray = zfs_alloc(hdl, children * sizeof (nvlist_t *)); 3704 vcount = 0; 3705 3706 if (*newroot == NULL || 3707 nvlist_lookup_nvlist_array(*newroot, ZPOOL_CONFIG_CHILDREN, 3708 &newchild, &newchildren) != 0) 3709 newchildren = 0; 3710 3711 for (c = 0; c < children; c++) { 3712 uint64_t is_log = B_FALSE, is_hole = B_FALSE; 3713 boolean_t is_special = B_FALSE, is_dedup = B_FALSE; 3714 const char *type; 3715 nvlist_t **mchild, *vdev; 3716 uint_t mchildren; 3717 int entry; 3718 3719 /* 3720 * Unlike cache & spares, slogs are stored in the 3721 * ZPOOL_CONFIG_CHILDREN array. We filter them out here. 3722 */ 3723 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG, 3724 &is_log); 3725 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE, 3726 &is_hole); 3727 if (is_log || is_hole) { 3728 /* 3729 * Create a hole vdev and put it in the config. 3730 */ 3731 if (nvlist_alloc(&vdev, NV_UNIQUE_NAME, 0) != 0) 3732 goto out; 3733 if (nvlist_add_string(vdev, ZPOOL_CONFIG_TYPE, 3734 VDEV_TYPE_HOLE) != 0) 3735 goto out; 3736 if (nvlist_add_uint64(vdev, ZPOOL_CONFIG_IS_HOLE, 3737 1) != 0) 3738 goto out; 3739 if (lastlog == 0) 3740 lastlog = vcount; 3741 varray[vcount++] = vdev; 3742 continue; 3743 } 3744 lastlog = 0; 3745 type = fnvlist_lookup_string(child[c], ZPOOL_CONFIG_TYPE); 3746 3747 if (strcmp(type, VDEV_TYPE_INDIRECT) == 0) { 3748 vdev = child[c]; 3749 if (nvlist_dup(vdev, &varray[vcount++], 0) != 0) 3750 goto out; 3751 continue; 3752 } else if (strcmp(type, VDEV_TYPE_MIRROR) != 0) { 3753 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3754 "Source pool must be composed only of mirrors\n")); 3755 retval = zfs_error(hdl, EZFS_INVALCONFIG, errbuf); 3756 goto out; 3757 } 3758 3759 if (nvlist_lookup_string(child[c], 3760 ZPOOL_CONFIG_ALLOCATION_BIAS, &bias) == 0) { 3761 if (strcmp(bias, VDEV_ALLOC_BIAS_SPECIAL) == 0) 3762 is_special = B_TRUE; 3763 else if (strcmp(bias, VDEV_ALLOC_BIAS_DEDUP) == 0) 3764 is_dedup = B_TRUE; 3765 } 3766 verify(nvlist_lookup_nvlist_array(child[c], 3767 ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0); 3768 3769 /* find or add an entry for this top-level vdev */ 3770 if (newchildren > 0 && 3771 (entry = find_vdev_entry(zhp, mchild, mchildren, 3772 newchild, newchildren)) >= 0) { 3773 /* We found a disk that the user specified. */ 3774 vdev = mchild[entry]; 3775 ++found; 3776 } else { 3777 /* User didn't specify a disk for this vdev. */ 3778 vdev = mchild[mchildren - 1]; 3779 } 3780 3781 if (nvlist_dup(vdev, &varray[vcount++], 0) != 0) 3782 goto out; 3783 3784 if (flags.dryrun != 0) { 3785 if (is_dedup == B_TRUE) { 3786 if (nvlist_add_string(varray[vcount - 1], 3787 ZPOOL_CONFIG_ALLOCATION_BIAS, 3788 VDEV_ALLOC_BIAS_DEDUP) != 0) 3789 goto out; 3790 } else if (is_special == B_TRUE) { 3791 if (nvlist_add_string(varray[vcount - 1], 3792 ZPOOL_CONFIG_ALLOCATION_BIAS, 3793 VDEV_ALLOC_BIAS_SPECIAL) != 0) 3794 goto out; 3795 } 3796 } 3797 } 3798 3799 /* did we find every disk the user specified? */ 3800 if (found != newchildren) { 3801 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "Device list must " 3802 "include at most one disk from each mirror")); 3803 retval = zfs_error(hdl, EZFS_INVALCONFIG, errbuf); 3804 goto out; 3805 } 3806 3807 /* Prepare the nvlist for populating. */ 3808 if (*newroot == NULL) { 3809 if (nvlist_alloc(newroot, NV_UNIQUE_NAME, 0) != 0) 3810 goto out; 3811 freelist = B_TRUE; 3812 if (nvlist_add_string(*newroot, ZPOOL_CONFIG_TYPE, 3813 VDEV_TYPE_ROOT) != 0) 3814 goto out; 3815 } else { 3816 verify(nvlist_remove_all(*newroot, ZPOOL_CONFIG_CHILDREN) == 0); 3817 } 3818 3819 /* Add all the children we found */ 3820 if (nvlist_add_nvlist_array(*newroot, ZPOOL_CONFIG_CHILDREN, 3821 (const nvlist_t **)varray, lastlog == 0 ? vcount : lastlog) != 0) 3822 goto out; 3823 3824 /* 3825 * If we're just doing a dry run, exit now with success. 3826 */ 3827 if (flags.dryrun) { 3828 memory_err = B_FALSE; 3829 freelist = B_FALSE; 3830 goto out; 3831 } 3832 3833 /* now build up the config list & call the ioctl */ 3834 if (nvlist_alloc(&newconfig, NV_UNIQUE_NAME, 0) != 0) 3835 goto out; 3836 3837 if (nvlist_add_nvlist(newconfig, 3838 ZPOOL_CONFIG_VDEV_TREE, *newroot) != 0 || 3839 nvlist_add_string(newconfig, 3840 ZPOOL_CONFIG_POOL_NAME, newname) != 0 || 3841 nvlist_add_uint64(newconfig, ZPOOL_CONFIG_VERSION, vers) != 0) 3842 goto out; 3843 3844 /* 3845 * The new pool is automatically part of the namespace unless we 3846 * explicitly export it. 3847 */ 3848 if (!flags.import) 3849 zc.zc_cookie = ZPOOL_EXPORT_AFTER_SPLIT; 3850 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3851 (void) strlcpy(zc.zc_string, newname, sizeof (zc.zc_string)); 3852 zcmd_write_conf_nvlist(hdl, &zc, newconfig); 3853 if (zc_props != NULL) 3854 zcmd_write_src_nvlist(hdl, &zc, zc_props); 3855 3856 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SPLIT, &zc) != 0) { 3857 retval = zpool_standard_error(hdl, errno, errbuf); 3858 goto out; 3859 } 3860 3861 freelist = B_FALSE; 3862 memory_err = B_FALSE; 3863 3864 out: 3865 if (varray != NULL) { 3866 int v; 3867 3868 for (v = 0; v < vcount; v++) 3869 nvlist_free(varray[v]); 3870 free(varray); 3871 } 3872 zcmd_free_nvlists(&zc); 3873 nvlist_free(zc_props); 3874 nvlist_free(newconfig); 3875 if (freelist) { 3876 nvlist_free(*newroot); 3877 *newroot = NULL; 3878 } 3879 3880 if (retval != 0) 3881 return (retval); 3882 3883 if (memory_err) 3884 return (no_memory(hdl)); 3885 3886 return (0); 3887 } 3888 3889 /* 3890 * Remove the given device. 3891 */ 3892 int 3893 zpool_vdev_remove(zpool_handle_t *zhp, const char *path) 3894 { 3895 zfs_cmd_t zc = {"\0"}; 3896 char errbuf[ERRBUFLEN]; 3897 nvlist_t *tgt; 3898 boolean_t avail_spare, l2cache, islog; 3899 libzfs_handle_t *hdl = zhp->zpool_hdl; 3900 uint64_t version; 3901 3902 (void) snprintf(errbuf, sizeof (errbuf), 3903 dgettext(TEXT_DOMAIN, "cannot remove %s"), path); 3904 3905 if (zpool_is_draid_spare(path)) { 3906 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3907 "dRAID spares cannot be removed")); 3908 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3909 } 3910 3911 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3912 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 3913 &islog)) == NULL) 3914 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3915 3916 version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL); 3917 if (islog && version < SPA_VERSION_HOLES) { 3918 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3919 "pool must be upgraded to support log removal")); 3920 return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 3921 } 3922 3923 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3924 3925 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_REMOVE, &zc) == 0) 3926 return (0); 3927 3928 switch (errno) { 3929 3930 case EALREADY: 3931 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3932 "removal for this vdev is already in progress.")); 3933 (void) zfs_error(hdl, EZFS_BUSY, errbuf); 3934 break; 3935 3936 case EINVAL: 3937 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3938 "invalid config; all top-level vdevs must " 3939 "have the same sector size and not be raidz.")); 3940 (void) zfs_error(hdl, EZFS_INVALCONFIG, errbuf); 3941 break; 3942 3943 case EBUSY: 3944 if (islog) { 3945 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3946 "Mount encrypted datasets to replay logs.")); 3947 } else { 3948 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3949 "Pool busy; removal may already be in progress")); 3950 } 3951 (void) zfs_error(hdl, EZFS_BUSY, errbuf); 3952 break; 3953 3954 case EACCES: 3955 if (islog) { 3956 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3957 "Mount encrypted datasets to replay logs.")); 3958 (void) zfs_error(hdl, EZFS_BUSY, errbuf); 3959 } else { 3960 (void) zpool_standard_error(hdl, errno, errbuf); 3961 } 3962 break; 3963 3964 default: 3965 (void) zpool_standard_error(hdl, errno, errbuf); 3966 } 3967 return (-1); 3968 } 3969 3970 int 3971 zpool_vdev_remove_cancel(zpool_handle_t *zhp) 3972 { 3973 zfs_cmd_t zc = {{0}}; 3974 char errbuf[ERRBUFLEN]; 3975 libzfs_handle_t *hdl = zhp->zpool_hdl; 3976 3977 (void) snprintf(errbuf, sizeof (errbuf), 3978 dgettext(TEXT_DOMAIN, "cannot cancel removal")); 3979 3980 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3981 zc.zc_cookie = 1; 3982 3983 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_REMOVE, &zc) == 0) 3984 return (0); 3985 3986 return (zpool_standard_error(hdl, errno, errbuf)); 3987 } 3988 3989 int 3990 zpool_vdev_indirect_size(zpool_handle_t *zhp, const char *path, 3991 uint64_t *sizep) 3992 { 3993 char errbuf[ERRBUFLEN]; 3994 nvlist_t *tgt; 3995 boolean_t avail_spare, l2cache, islog; 3996 libzfs_handle_t *hdl = zhp->zpool_hdl; 3997 3998 (void) snprintf(errbuf, sizeof (errbuf), 3999 dgettext(TEXT_DOMAIN, "cannot determine indirect size of %s"), 4000 path); 4001 4002 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 4003 &islog)) == NULL) 4004 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 4005 4006 if (avail_spare || l2cache || islog) { 4007 *sizep = 0; 4008 return (0); 4009 } 4010 4011 if (nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_INDIRECT_SIZE, sizep) != 0) { 4012 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4013 "indirect size not available")); 4014 return (zfs_error(hdl, EINVAL, errbuf)); 4015 } 4016 return (0); 4017 } 4018 4019 /* 4020 * Clear the errors for the pool, or the particular device if specified. 4021 */ 4022 int 4023 zpool_clear(zpool_handle_t *zhp, const char *path, nvlist_t *rewindnvl) 4024 { 4025 zfs_cmd_t zc = {"\0"}; 4026 char errbuf[ERRBUFLEN]; 4027 nvlist_t *tgt; 4028 zpool_load_policy_t policy; 4029 boolean_t avail_spare, l2cache; 4030 libzfs_handle_t *hdl = zhp->zpool_hdl; 4031 nvlist_t *nvi = NULL; 4032 int error; 4033 4034 if (path) 4035 (void) snprintf(errbuf, sizeof (errbuf), 4036 dgettext(TEXT_DOMAIN, "cannot clear errors for %s"), 4037 path); 4038 else 4039 (void) snprintf(errbuf, sizeof (errbuf), 4040 dgettext(TEXT_DOMAIN, "cannot clear errors for %s"), 4041 zhp->zpool_name); 4042 4043 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4044 if (path) { 4045 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, 4046 &l2cache, NULL)) == NULL) 4047 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 4048 4049 /* 4050 * Don't allow error clearing for hot spares. Do allow 4051 * error clearing for l2cache devices. 4052 */ 4053 if (avail_spare) 4054 return (zfs_error(hdl, EZFS_ISSPARE, errbuf)); 4055 4056 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 4057 } 4058 4059 zpool_get_load_policy(rewindnvl, &policy); 4060 zc.zc_cookie = policy.zlp_rewind; 4061 4062 zcmd_alloc_dst_nvlist(hdl, &zc, zhp->zpool_config_size * 2); 4063 zcmd_write_src_nvlist(hdl, &zc, rewindnvl); 4064 4065 while ((error = zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc)) != 0 && 4066 errno == ENOMEM) 4067 zcmd_expand_dst_nvlist(hdl, &zc); 4068 4069 if (!error || ((policy.zlp_rewind & ZPOOL_TRY_REWIND) && 4070 errno != EPERM && errno != EACCES)) { 4071 if (policy.zlp_rewind & 4072 (ZPOOL_DO_REWIND | ZPOOL_TRY_REWIND)) { 4073 (void) zcmd_read_dst_nvlist(hdl, &zc, &nvi); 4074 zpool_rewind_exclaim(hdl, zc.zc_name, 4075 ((policy.zlp_rewind & ZPOOL_TRY_REWIND) != 0), 4076 nvi); 4077 nvlist_free(nvi); 4078 } 4079 zcmd_free_nvlists(&zc); 4080 return (0); 4081 } 4082 4083 zcmd_free_nvlists(&zc); 4084 return (zpool_standard_error(hdl, errno, errbuf)); 4085 } 4086 4087 /* 4088 * Similar to zpool_clear(), but takes a GUID (used by fmd). 4089 */ 4090 int 4091 zpool_vdev_clear(zpool_handle_t *zhp, uint64_t guid) 4092 { 4093 zfs_cmd_t zc = {"\0"}; 4094 char errbuf[ERRBUFLEN]; 4095 libzfs_handle_t *hdl = zhp->zpool_hdl; 4096 4097 (void) snprintf(errbuf, sizeof (errbuf), 4098 dgettext(TEXT_DOMAIN, "cannot clear errors for %llx"), 4099 (u_longlong_t)guid); 4100 4101 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4102 zc.zc_guid = guid; 4103 zc.zc_cookie = ZPOOL_NO_REWIND; 4104 4105 if (zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc) == 0) 4106 return (0); 4107 4108 return (zpool_standard_error(hdl, errno, errbuf)); 4109 } 4110 4111 /* 4112 * Change the GUID for a pool. 4113 */ 4114 int 4115 zpool_reguid(zpool_handle_t *zhp) 4116 { 4117 char errbuf[ERRBUFLEN]; 4118 libzfs_handle_t *hdl = zhp->zpool_hdl; 4119 zfs_cmd_t zc = {"\0"}; 4120 4121 (void) snprintf(errbuf, sizeof (errbuf), 4122 dgettext(TEXT_DOMAIN, "cannot reguid '%s'"), zhp->zpool_name); 4123 4124 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4125 if (zfs_ioctl(hdl, ZFS_IOC_POOL_REGUID, &zc) == 0) 4126 return (0); 4127 4128 return (zpool_standard_error(hdl, errno, errbuf)); 4129 } 4130 4131 /* 4132 * Reopen the pool. 4133 */ 4134 int 4135 zpool_reopen_one(zpool_handle_t *zhp, void *data) 4136 { 4137 libzfs_handle_t *hdl = zpool_get_handle(zhp); 4138 const char *pool_name = zpool_get_name(zhp); 4139 boolean_t *scrub_restart = data; 4140 int error; 4141 4142 error = lzc_reopen(pool_name, *scrub_restart); 4143 if (error) { 4144 return (zpool_standard_error_fmt(hdl, error, 4145 dgettext(TEXT_DOMAIN, "cannot reopen '%s'"), pool_name)); 4146 } 4147 4148 return (0); 4149 } 4150 4151 /* call into libzfs_core to execute the sync IOCTL per pool */ 4152 int 4153 zpool_sync_one(zpool_handle_t *zhp, void *data) 4154 { 4155 int ret; 4156 libzfs_handle_t *hdl = zpool_get_handle(zhp); 4157 const char *pool_name = zpool_get_name(zhp); 4158 boolean_t *force = data; 4159 nvlist_t *innvl = fnvlist_alloc(); 4160 4161 fnvlist_add_boolean_value(innvl, "force", *force); 4162 if ((ret = lzc_sync(pool_name, innvl, NULL)) != 0) { 4163 nvlist_free(innvl); 4164 return (zpool_standard_error_fmt(hdl, ret, 4165 dgettext(TEXT_DOMAIN, "sync '%s' failed"), pool_name)); 4166 } 4167 nvlist_free(innvl); 4168 4169 return (0); 4170 } 4171 4172 #define PATH_BUF_LEN 64 4173 4174 /* 4175 * Given a vdev, return the name to display in iostat. If the vdev has a path, 4176 * we use that, stripping off any leading "/dev/dsk/"; if not, we use the type. 4177 * We also check if this is a whole disk, in which case we strip off the 4178 * trailing 's0' slice name. 4179 * 4180 * This routine is also responsible for identifying when disks have been 4181 * reconfigured in a new location. The kernel will have opened the device by 4182 * devid, but the path will still refer to the old location. To catch this, we 4183 * first do a path -> devid translation (which is fast for the common case). If 4184 * the devid matches, we're done. If not, we do a reverse devid -> path 4185 * translation and issue the appropriate ioctl() to update the path of the vdev. 4186 * If 'zhp' is NULL, then this is an exported pool, and we don't need to do any 4187 * of these checks. 4188 */ 4189 char * 4190 zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv, 4191 int name_flags) 4192 { 4193 const char *type, *tpath; 4194 const char *path; 4195 uint64_t value; 4196 char buf[PATH_BUF_LEN]; 4197 char tmpbuf[PATH_BUF_LEN * 2]; 4198 4199 /* 4200 * vdev_name will be "root"/"root-0" for the root vdev, but it is the 4201 * zpool name that will be displayed to the user. 4202 */ 4203 type = fnvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE); 4204 if (zhp != NULL && strcmp(type, "root") == 0) 4205 return (zfs_strdup(hdl, zpool_get_name(zhp))); 4206 4207 if (libzfs_envvar_is_set("ZPOOL_VDEV_NAME_PATH")) 4208 name_flags |= VDEV_NAME_PATH; 4209 if (libzfs_envvar_is_set("ZPOOL_VDEV_NAME_GUID")) 4210 name_flags |= VDEV_NAME_GUID; 4211 if (libzfs_envvar_is_set("ZPOOL_VDEV_NAME_FOLLOW_LINKS")) 4212 name_flags |= VDEV_NAME_FOLLOW_LINKS; 4213 4214 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT, &value) == 0 || 4215 name_flags & VDEV_NAME_GUID) { 4216 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &value); 4217 (void) snprintf(buf, sizeof (buf), "%llu", (u_longlong_t)value); 4218 path = buf; 4219 } else if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &tpath) == 0) { 4220 path = tpath; 4221 4222 if (name_flags & VDEV_NAME_FOLLOW_LINKS) { 4223 char *rp = realpath(path, NULL); 4224 if (rp) { 4225 strlcpy(buf, rp, sizeof (buf)); 4226 path = buf; 4227 free(rp); 4228 } 4229 } 4230 4231 /* 4232 * For a block device only use the name. 4233 */ 4234 if ((strcmp(type, VDEV_TYPE_DISK) == 0) && 4235 !(name_flags & VDEV_NAME_PATH)) { 4236 path = zfs_strip_path(path); 4237 } 4238 4239 /* 4240 * Remove the partition from the path if this is a whole disk. 4241 */ 4242 if (strcmp(type, VDEV_TYPE_DRAID_SPARE) != 0 && 4243 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, &value) 4244 == 0 && value && !(name_flags & VDEV_NAME_PATH)) { 4245 return (zfs_strip_partition(path)); 4246 } 4247 } else { 4248 path = type; 4249 4250 /* 4251 * If it's a raidz device, we need to stick in the parity level. 4252 */ 4253 if (strcmp(path, VDEV_TYPE_RAIDZ) == 0) { 4254 value = fnvlist_lookup_uint64(nv, ZPOOL_CONFIG_NPARITY); 4255 (void) snprintf(buf, sizeof (buf), "%s%llu", path, 4256 (u_longlong_t)value); 4257 path = buf; 4258 } 4259 4260 /* 4261 * If it's a dRAID device, we add parity, groups, and spares. 4262 */ 4263 if (strcmp(path, VDEV_TYPE_DRAID) == 0) { 4264 uint64_t ndata, nparity, nspares; 4265 nvlist_t **child; 4266 uint_t children; 4267 4268 verify(nvlist_lookup_nvlist_array(nv, 4269 ZPOOL_CONFIG_CHILDREN, &child, &children) == 0); 4270 nparity = fnvlist_lookup_uint64(nv, 4271 ZPOOL_CONFIG_NPARITY); 4272 ndata = fnvlist_lookup_uint64(nv, 4273 ZPOOL_CONFIG_DRAID_NDATA); 4274 nspares = fnvlist_lookup_uint64(nv, 4275 ZPOOL_CONFIG_DRAID_NSPARES); 4276 4277 path = zpool_draid_name(buf, sizeof (buf), ndata, 4278 nparity, nspares, children); 4279 } 4280 4281 /* 4282 * We identify each top-level vdev by using a <type-id> 4283 * naming convention. 4284 */ 4285 if (name_flags & VDEV_NAME_TYPE_ID) { 4286 uint64_t id = fnvlist_lookup_uint64(nv, 4287 ZPOOL_CONFIG_ID); 4288 (void) snprintf(tmpbuf, sizeof (tmpbuf), "%s-%llu", 4289 path, (u_longlong_t)id); 4290 path = tmpbuf; 4291 } 4292 } 4293 4294 return (zfs_strdup(hdl, path)); 4295 } 4296 4297 static int 4298 zbookmark_mem_compare(const void *a, const void *b) 4299 { 4300 return (memcmp(a, b, sizeof (zbookmark_phys_t))); 4301 } 4302 4303 /* 4304 * Retrieve the persistent error log, uniquify the members, and return to the 4305 * caller. 4306 */ 4307 int 4308 zpool_get_errlog(zpool_handle_t *zhp, nvlist_t **nverrlistp) 4309 { 4310 zfs_cmd_t zc = {"\0"}; 4311 libzfs_handle_t *hdl = zhp->zpool_hdl; 4312 zbookmark_phys_t *buf; 4313 uint64_t buflen = 10000; /* approx. 1MB of RAM */ 4314 4315 if (fnvlist_lookup_uint64(zhp->zpool_config, 4316 ZPOOL_CONFIG_ERRCOUNT) == 0) 4317 return (0); 4318 4319 /* 4320 * Retrieve the raw error list from the kernel. If it doesn't fit, 4321 * allocate a larger buffer and retry. 4322 */ 4323 (void) strcpy(zc.zc_name, zhp->zpool_name); 4324 for (;;) { 4325 buf = zfs_alloc(zhp->zpool_hdl, 4326 buflen * sizeof (zbookmark_phys_t)); 4327 zc.zc_nvlist_dst = (uintptr_t)buf; 4328 zc.zc_nvlist_dst_size = buflen; 4329 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_ERROR_LOG, 4330 &zc) != 0) { 4331 free(buf); 4332 if (errno == ENOMEM) { 4333 buflen *= 2; 4334 } else { 4335 return (zpool_standard_error_fmt(hdl, errno, 4336 dgettext(TEXT_DOMAIN, "errors: List of " 4337 "errors unavailable"))); 4338 } 4339 } else { 4340 break; 4341 } 4342 } 4343 4344 /* 4345 * Sort the resulting bookmarks. This is a little confusing due to the 4346 * implementation of ZFS_IOC_ERROR_LOG. The bookmarks are copied last 4347 * to first, and 'zc_nvlist_dst_size' indicates the number of bookmarks 4348 * _not_ copied as part of the process. So we point the start of our 4349 * array appropriate and decrement the total number of elements. 4350 */ 4351 zbookmark_phys_t *zb = buf + zc.zc_nvlist_dst_size; 4352 uint64_t zblen = buflen - zc.zc_nvlist_dst_size; 4353 4354 qsort(zb, zblen, sizeof (zbookmark_phys_t), zbookmark_mem_compare); 4355 4356 verify(nvlist_alloc(nverrlistp, 0, KM_SLEEP) == 0); 4357 4358 /* 4359 * Fill in the nverrlistp with nvlist's of dataset and object numbers. 4360 */ 4361 for (uint64_t i = 0; i < zblen; i++) { 4362 nvlist_t *nv; 4363 4364 /* ignoring zb_blkid and zb_level for now */ 4365 if (i > 0 && zb[i-1].zb_objset == zb[i].zb_objset && 4366 zb[i-1].zb_object == zb[i].zb_object) 4367 continue; 4368 4369 if (nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) != 0) 4370 goto nomem; 4371 if (nvlist_add_uint64(nv, ZPOOL_ERR_DATASET, 4372 zb[i].zb_objset) != 0) { 4373 nvlist_free(nv); 4374 goto nomem; 4375 } 4376 if (nvlist_add_uint64(nv, ZPOOL_ERR_OBJECT, 4377 zb[i].zb_object) != 0) { 4378 nvlist_free(nv); 4379 goto nomem; 4380 } 4381 if (nvlist_add_nvlist(*nverrlistp, "ejk", nv) != 0) { 4382 nvlist_free(nv); 4383 goto nomem; 4384 } 4385 nvlist_free(nv); 4386 } 4387 4388 free(buf); 4389 return (0); 4390 4391 nomem: 4392 free(buf); 4393 return (no_memory(zhp->zpool_hdl)); 4394 } 4395 4396 /* 4397 * Upgrade a ZFS pool to the latest on-disk version. 4398 */ 4399 int 4400 zpool_upgrade(zpool_handle_t *zhp, uint64_t new_version) 4401 { 4402 zfs_cmd_t zc = {"\0"}; 4403 libzfs_handle_t *hdl = zhp->zpool_hdl; 4404 4405 (void) strcpy(zc.zc_name, zhp->zpool_name); 4406 zc.zc_cookie = new_version; 4407 4408 if (zfs_ioctl(hdl, ZFS_IOC_POOL_UPGRADE, &zc) != 0) 4409 return (zpool_standard_error_fmt(hdl, errno, 4410 dgettext(TEXT_DOMAIN, "cannot upgrade '%s'"), 4411 zhp->zpool_name)); 4412 return (0); 4413 } 4414 4415 void 4416 zfs_save_arguments(int argc, char **argv, char *string, int len) 4417 { 4418 int i; 4419 4420 (void) strlcpy(string, zfs_basename(argv[0]), len); 4421 for (i = 1; i < argc; i++) { 4422 (void) strlcat(string, " ", len); 4423 (void) strlcat(string, argv[i], len); 4424 } 4425 } 4426 4427 int 4428 zpool_log_history(libzfs_handle_t *hdl, const char *message) 4429 { 4430 zfs_cmd_t zc = {"\0"}; 4431 nvlist_t *args; 4432 4433 args = fnvlist_alloc(); 4434 fnvlist_add_string(args, "message", message); 4435 zcmd_write_src_nvlist(hdl, &zc, args); 4436 int err = zfs_ioctl(hdl, ZFS_IOC_LOG_HISTORY, &zc); 4437 nvlist_free(args); 4438 zcmd_free_nvlists(&zc); 4439 return (err); 4440 } 4441 4442 /* 4443 * Perform ioctl to get some command history of a pool. 4444 * 4445 * 'buf' is the buffer to fill up to 'len' bytes. 'off' is the 4446 * logical offset of the history buffer to start reading from. 4447 * 4448 * Upon return, 'off' is the next logical offset to read from and 4449 * 'len' is the actual amount of bytes read into 'buf'. 4450 */ 4451 static int 4452 get_history(zpool_handle_t *zhp, char *buf, uint64_t *off, uint64_t *len) 4453 { 4454 zfs_cmd_t zc = {"\0"}; 4455 libzfs_handle_t *hdl = zhp->zpool_hdl; 4456 4457 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4458 4459 zc.zc_history = (uint64_t)(uintptr_t)buf; 4460 zc.zc_history_len = *len; 4461 zc.zc_history_offset = *off; 4462 4463 if (zfs_ioctl(hdl, ZFS_IOC_POOL_GET_HISTORY, &zc) != 0) { 4464 switch (errno) { 4465 case EPERM: 4466 return (zfs_error_fmt(hdl, EZFS_PERM, 4467 dgettext(TEXT_DOMAIN, 4468 "cannot show history for pool '%s'"), 4469 zhp->zpool_name)); 4470 case ENOENT: 4471 return (zfs_error_fmt(hdl, EZFS_NOHISTORY, 4472 dgettext(TEXT_DOMAIN, "cannot get history for pool " 4473 "'%s'"), zhp->zpool_name)); 4474 case ENOTSUP: 4475 return (zfs_error_fmt(hdl, EZFS_BADVERSION, 4476 dgettext(TEXT_DOMAIN, "cannot get history for pool " 4477 "'%s', pool must be upgraded"), zhp->zpool_name)); 4478 default: 4479 return (zpool_standard_error_fmt(hdl, errno, 4480 dgettext(TEXT_DOMAIN, 4481 "cannot get history for '%s'"), zhp->zpool_name)); 4482 } 4483 } 4484 4485 *len = zc.zc_history_len; 4486 *off = zc.zc_history_offset; 4487 4488 return (0); 4489 } 4490 4491 /* 4492 * Retrieve the command history of a pool. 4493 */ 4494 int 4495 zpool_get_history(zpool_handle_t *zhp, nvlist_t **nvhisp, uint64_t *off, 4496 boolean_t *eof) 4497 { 4498 libzfs_handle_t *hdl = zhp->zpool_hdl; 4499 char *buf; 4500 int buflen = 128 * 1024; 4501 nvlist_t **records = NULL; 4502 uint_t numrecords = 0; 4503 int err = 0, i; 4504 uint64_t start = *off; 4505 4506 buf = zfs_alloc(hdl, buflen); 4507 4508 /* process about 1MiB a time */ 4509 while (*off - start < 1024 * 1024) { 4510 uint64_t bytes_read = buflen; 4511 uint64_t leftover; 4512 4513 if ((err = get_history(zhp, buf, off, &bytes_read)) != 0) 4514 break; 4515 4516 /* if nothing else was read in, we're at EOF, just return */ 4517 if (!bytes_read) { 4518 *eof = B_TRUE; 4519 break; 4520 } 4521 4522 if ((err = zpool_history_unpack(buf, bytes_read, 4523 &leftover, &records, &numrecords)) != 0) { 4524 zpool_standard_error_fmt(hdl, err, 4525 dgettext(TEXT_DOMAIN, 4526 "cannot get history for '%s'"), zhp->zpool_name); 4527 break; 4528 } 4529 *off -= leftover; 4530 if (leftover == bytes_read) { 4531 /* 4532 * no progress made, because buffer is not big enough 4533 * to hold this record; resize and retry. 4534 */ 4535 buflen *= 2; 4536 free(buf); 4537 buf = zfs_alloc(hdl, buflen); 4538 } 4539 } 4540 4541 free(buf); 4542 4543 if (!err) { 4544 *nvhisp = fnvlist_alloc(); 4545 fnvlist_add_nvlist_array(*nvhisp, ZPOOL_HIST_RECORD, 4546 (const nvlist_t **)records, numrecords); 4547 } 4548 for (i = 0; i < numrecords; i++) 4549 nvlist_free(records[i]); 4550 free(records); 4551 4552 return (err); 4553 } 4554 4555 /* 4556 * Retrieve the next event given the passed 'zevent_fd' file descriptor. 4557 * If there is a new event available 'nvp' will contain a newly allocated 4558 * nvlist and 'dropped' will be set to the number of missed events since 4559 * the last call to this function. When 'nvp' is set to NULL it indicates 4560 * no new events are available. In either case the function returns 0 and 4561 * it is up to the caller to free 'nvp'. In the case of a fatal error the 4562 * function will return a non-zero value. When the function is called in 4563 * blocking mode (the default, unless the ZEVENT_NONBLOCK flag is passed), 4564 * it will not return until a new event is available. 4565 */ 4566 int 4567 zpool_events_next(libzfs_handle_t *hdl, nvlist_t **nvp, 4568 int *dropped, unsigned flags, int zevent_fd) 4569 { 4570 zfs_cmd_t zc = {"\0"}; 4571 int error = 0; 4572 4573 *nvp = NULL; 4574 *dropped = 0; 4575 zc.zc_cleanup_fd = zevent_fd; 4576 4577 if (flags & ZEVENT_NONBLOCK) 4578 zc.zc_guid = ZEVENT_NONBLOCK; 4579 4580 zcmd_alloc_dst_nvlist(hdl, &zc, ZEVENT_SIZE); 4581 4582 retry: 4583 if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_NEXT, &zc) != 0) { 4584 switch (errno) { 4585 case ESHUTDOWN: 4586 error = zfs_error_fmt(hdl, EZFS_POOLUNAVAIL, 4587 dgettext(TEXT_DOMAIN, "zfs shutdown")); 4588 goto out; 4589 case ENOENT: 4590 /* Blocking error case should not occur */ 4591 if (!(flags & ZEVENT_NONBLOCK)) 4592 error = zpool_standard_error_fmt(hdl, errno, 4593 dgettext(TEXT_DOMAIN, "cannot get event")); 4594 4595 goto out; 4596 case ENOMEM: 4597 zcmd_expand_dst_nvlist(hdl, &zc); 4598 goto retry; 4599 default: 4600 error = zpool_standard_error_fmt(hdl, errno, 4601 dgettext(TEXT_DOMAIN, "cannot get event")); 4602 goto out; 4603 } 4604 } 4605 4606 error = zcmd_read_dst_nvlist(hdl, &zc, nvp); 4607 if (error != 0) 4608 goto out; 4609 4610 *dropped = (int)zc.zc_cookie; 4611 out: 4612 zcmd_free_nvlists(&zc); 4613 4614 return (error); 4615 } 4616 4617 /* 4618 * Clear all events. 4619 */ 4620 int 4621 zpool_events_clear(libzfs_handle_t *hdl, int *count) 4622 { 4623 zfs_cmd_t zc = {"\0"}; 4624 4625 if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_CLEAR, &zc) != 0) 4626 return (zpool_standard_error(hdl, errno, 4627 dgettext(TEXT_DOMAIN, "cannot clear events"))); 4628 4629 if (count != NULL) 4630 *count = (int)zc.zc_cookie; /* # of events cleared */ 4631 4632 return (0); 4633 } 4634 4635 /* 4636 * Seek to a specific EID, ZEVENT_SEEK_START, or ZEVENT_SEEK_END for 4637 * the passed zevent_fd file handle. On success zero is returned, 4638 * otherwise -1 is returned and hdl->libzfs_error is set to the errno. 4639 */ 4640 int 4641 zpool_events_seek(libzfs_handle_t *hdl, uint64_t eid, int zevent_fd) 4642 { 4643 zfs_cmd_t zc = {"\0"}; 4644 int error = 0; 4645 4646 zc.zc_guid = eid; 4647 zc.zc_cleanup_fd = zevent_fd; 4648 4649 if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_SEEK, &zc) != 0) { 4650 switch (errno) { 4651 case ENOENT: 4652 error = zfs_error_fmt(hdl, EZFS_NOENT, 4653 dgettext(TEXT_DOMAIN, "cannot get event")); 4654 break; 4655 4656 case ENOMEM: 4657 error = zfs_error_fmt(hdl, EZFS_NOMEM, 4658 dgettext(TEXT_DOMAIN, "cannot get event")); 4659 break; 4660 4661 default: 4662 error = zpool_standard_error_fmt(hdl, errno, 4663 dgettext(TEXT_DOMAIN, "cannot get event")); 4664 break; 4665 } 4666 } 4667 4668 return (error); 4669 } 4670 4671 static void 4672 zpool_obj_to_path_impl(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj, 4673 char *pathname, size_t len, boolean_t always_unmounted) 4674 { 4675 zfs_cmd_t zc = {"\0"}; 4676 boolean_t mounted = B_FALSE; 4677 char *mntpnt = NULL; 4678 char dsname[ZFS_MAX_DATASET_NAME_LEN]; 4679 4680 if (dsobj == 0) { 4681 /* special case for the MOS */ 4682 (void) snprintf(pathname, len, "<metadata>:<0x%llx>", 4683 (longlong_t)obj); 4684 return; 4685 } 4686 4687 /* get the dataset's name */ 4688 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4689 zc.zc_obj = dsobj; 4690 if (zfs_ioctl(zhp->zpool_hdl, 4691 ZFS_IOC_DSOBJ_TO_DSNAME, &zc) != 0) { 4692 /* just write out a path of two object numbers */ 4693 (void) snprintf(pathname, len, "<0x%llx>:<0x%llx>", 4694 (longlong_t)dsobj, (longlong_t)obj); 4695 return; 4696 } 4697 (void) strlcpy(dsname, zc.zc_value, sizeof (dsname)); 4698 4699 /* find out if the dataset is mounted */ 4700 mounted = !always_unmounted && is_mounted(zhp->zpool_hdl, dsname, 4701 &mntpnt); 4702 4703 /* get the corrupted object's path */ 4704 (void) strlcpy(zc.zc_name, dsname, sizeof (zc.zc_name)); 4705 zc.zc_obj = obj; 4706 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_OBJ_TO_PATH, 4707 &zc) == 0) { 4708 if (mounted) { 4709 (void) snprintf(pathname, len, "%s%s", mntpnt, 4710 zc.zc_value); 4711 } else { 4712 (void) snprintf(pathname, len, "%s:%s", 4713 dsname, zc.zc_value); 4714 } 4715 } else { 4716 (void) snprintf(pathname, len, "%s:<0x%llx>", dsname, 4717 (longlong_t)obj); 4718 } 4719 free(mntpnt); 4720 } 4721 4722 void 4723 zpool_obj_to_path(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj, 4724 char *pathname, size_t len) 4725 { 4726 zpool_obj_to_path_impl(zhp, dsobj, obj, pathname, len, B_FALSE); 4727 } 4728 4729 void 4730 zpool_obj_to_path_ds(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj, 4731 char *pathname, size_t len) 4732 { 4733 zpool_obj_to_path_impl(zhp, dsobj, obj, pathname, len, B_TRUE); 4734 } 4735 /* 4736 * Wait while the specified activity is in progress in the pool. 4737 */ 4738 int 4739 zpool_wait(zpool_handle_t *zhp, zpool_wait_activity_t activity) 4740 { 4741 boolean_t missing; 4742 4743 int error = zpool_wait_status(zhp, activity, &missing, NULL); 4744 4745 if (missing) { 4746 (void) zpool_standard_error_fmt(zhp->zpool_hdl, ENOENT, 4747 dgettext(TEXT_DOMAIN, "error waiting in pool '%s'"), 4748 zhp->zpool_name); 4749 return (ENOENT); 4750 } else { 4751 return (error); 4752 } 4753 } 4754 4755 /* 4756 * Wait for the given activity and return the status of the wait (whether or not 4757 * any waiting was done) in the 'waited' parameter. Non-existent pools are 4758 * reported via the 'missing' parameter, rather than by printing an error 4759 * message. This is convenient when this function is called in a loop over a 4760 * long period of time (as it is, for example, by zpool's wait cmd). In that 4761 * scenario, a pool being exported or destroyed should be considered a normal 4762 * event, so we don't want to print an error when we find that the pool doesn't 4763 * exist. 4764 */ 4765 int 4766 zpool_wait_status(zpool_handle_t *zhp, zpool_wait_activity_t activity, 4767 boolean_t *missing, boolean_t *waited) 4768 { 4769 int error = lzc_wait(zhp->zpool_name, activity, waited); 4770 *missing = (error == ENOENT); 4771 if (*missing) 4772 return (0); 4773 4774 if (error != 0) { 4775 (void) zpool_standard_error_fmt(zhp->zpool_hdl, error, 4776 dgettext(TEXT_DOMAIN, "error waiting in pool '%s'"), 4777 zhp->zpool_name); 4778 } 4779 4780 return (error); 4781 } 4782 4783 int 4784 zpool_set_bootenv(zpool_handle_t *zhp, const nvlist_t *envmap) 4785 { 4786 int error = lzc_set_bootenv(zhp->zpool_name, envmap); 4787 if (error != 0) { 4788 (void) zpool_standard_error_fmt(zhp->zpool_hdl, error, 4789 dgettext(TEXT_DOMAIN, 4790 "error setting bootenv in pool '%s'"), zhp->zpool_name); 4791 } 4792 4793 return (error); 4794 } 4795 4796 int 4797 zpool_get_bootenv(zpool_handle_t *zhp, nvlist_t **nvlp) 4798 { 4799 nvlist_t *nvl; 4800 int error; 4801 4802 nvl = NULL; 4803 error = lzc_get_bootenv(zhp->zpool_name, &nvl); 4804 if (error != 0) { 4805 (void) zpool_standard_error_fmt(zhp->zpool_hdl, error, 4806 dgettext(TEXT_DOMAIN, 4807 "error getting bootenv in pool '%s'"), zhp->zpool_name); 4808 } else { 4809 *nvlp = nvl; 4810 } 4811 4812 return (error); 4813 } 4814 4815 /* 4816 * Attempt to read and parse feature file(s) (from "compatibility" property). 4817 * Files contain zpool feature names, comma or whitespace-separated. 4818 * Comments (# character to next newline) are discarded. 4819 * 4820 * Arguments: 4821 * compatibility : string containing feature filenames 4822 * features : either NULL or pointer to array of boolean 4823 * report : either NULL or pointer to string buffer 4824 * rlen : length of "report" buffer 4825 * 4826 * compatibility is NULL (unset), "", "off", "legacy", or list of 4827 * comma-separated filenames. filenames should either be absolute, 4828 * or relative to: 4829 * 1) ZPOOL_SYSCONF_COMPAT_D (eg: /etc/zfs/compatibility.d) or 4830 * 2) ZPOOL_DATA_COMPAT_D (eg: /usr/share/zfs/compatibility.d). 4831 * (Unset), "" or "off" => enable all features 4832 * "legacy" => disable all features 4833 * 4834 * Any feature names read from files which match unames in spa_feature_table 4835 * will have the corresponding boolean set in the features array (if non-NULL). 4836 * If more than one feature set specified, only features present in *all* of 4837 * them will be set. 4838 * 4839 * "report" if not NULL will be populated with a suitable status message. 4840 * 4841 * Return values: 4842 * ZPOOL_COMPATIBILITY_OK : files read and parsed ok 4843 * ZPOOL_COMPATIBILITY_BADFILE : file too big or not a text file 4844 * ZPOOL_COMPATIBILITY_BADTOKEN : SYSCONF file contains invalid feature name 4845 * ZPOOL_COMPATIBILITY_WARNTOKEN : DATA file contains invalid feature name 4846 * ZPOOL_COMPATIBILITY_NOFILES : no feature files found 4847 */ 4848 zpool_compat_status_t 4849 zpool_load_compat(const char *compat, boolean_t *features, char *report, 4850 size_t rlen) 4851 { 4852 int sdirfd, ddirfd, featfd; 4853 struct stat fs; 4854 char *fc; 4855 char *ps, *ls, *ws; 4856 char *file, *line, *word; 4857 4858 char l_compat[ZFS_MAXPROPLEN]; 4859 4860 boolean_t ret_nofiles = B_TRUE; 4861 boolean_t ret_badfile = B_FALSE; 4862 boolean_t ret_badtoken = B_FALSE; 4863 boolean_t ret_warntoken = B_FALSE; 4864 4865 /* special cases (unset), "" and "off" => enable all features */ 4866 if (compat == NULL || compat[0] == '\0' || 4867 strcmp(compat, ZPOOL_COMPAT_OFF) == 0) { 4868 if (features != NULL) 4869 for (uint_t i = 0; i < SPA_FEATURES; i++) 4870 features[i] = B_TRUE; 4871 if (report != NULL) 4872 strlcpy(report, gettext("all features enabled"), rlen); 4873 return (ZPOOL_COMPATIBILITY_OK); 4874 } 4875 4876 /* Final special case "legacy" => disable all features */ 4877 if (strcmp(compat, ZPOOL_COMPAT_LEGACY) == 0) { 4878 if (features != NULL) 4879 for (uint_t i = 0; i < SPA_FEATURES; i++) 4880 features[i] = B_FALSE; 4881 if (report != NULL) 4882 strlcpy(report, gettext("all features disabled"), rlen); 4883 return (ZPOOL_COMPATIBILITY_OK); 4884 } 4885 4886 /* 4887 * Start with all true; will be ANDed with results from each file 4888 */ 4889 if (features != NULL) 4890 for (uint_t i = 0; i < SPA_FEATURES; i++) 4891 features[i] = B_TRUE; 4892 4893 char err_badfile[ZFS_MAXPROPLEN] = ""; 4894 char err_badtoken[ZFS_MAXPROPLEN] = ""; 4895 4896 /* 4897 * We ignore errors from the directory open() 4898 * as they're only needed if the filename is relative 4899 * which will be checked during the openat(). 4900 */ 4901 4902 /* O_PATH safer than O_RDONLY if system allows it */ 4903 #if defined(O_PATH) 4904 #define ZC_DIR_FLAGS (O_DIRECTORY | O_CLOEXEC | O_PATH) 4905 #else 4906 #define ZC_DIR_FLAGS (O_DIRECTORY | O_CLOEXEC | O_RDONLY) 4907 #endif 4908 4909 sdirfd = open(ZPOOL_SYSCONF_COMPAT_D, ZC_DIR_FLAGS); 4910 ddirfd = open(ZPOOL_DATA_COMPAT_D, ZC_DIR_FLAGS); 4911 4912 (void) strlcpy(l_compat, compat, ZFS_MAXPROPLEN); 4913 4914 for (file = strtok_r(l_compat, ",", &ps); 4915 file != NULL; 4916 file = strtok_r(NULL, ",", &ps)) { 4917 4918 boolean_t l_features[SPA_FEATURES]; 4919 4920 enum { Z_SYSCONF, Z_DATA } source; 4921 4922 /* try sysconfdir first, then datadir */ 4923 source = Z_SYSCONF; 4924 if ((featfd = openat(sdirfd, file, O_RDONLY | O_CLOEXEC)) < 0) { 4925 featfd = openat(ddirfd, file, O_RDONLY | O_CLOEXEC); 4926 source = Z_DATA; 4927 } 4928 4929 /* File readable and correct size? */ 4930 if (featfd < 0 || 4931 fstat(featfd, &fs) < 0 || 4932 fs.st_size < 1 || 4933 fs.st_size > ZPOOL_COMPAT_MAXSIZE) { 4934 (void) close(featfd); 4935 strlcat(err_badfile, file, ZFS_MAXPROPLEN); 4936 strlcat(err_badfile, " ", ZFS_MAXPROPLEN); 4937 ret_badfile = B_TRUE; 4938 continue; 4939 } 4940 4941 /* Prefault the file if system allows */ 4942 #if defined(MAP_POPULATE) 4943 #define ZC_MMAP_FLAGS (MAP_PRIVATE | MAP_POPULATE) 4944 #elif defined(MAP_PREFAULT_READ) 4945 #define ZC_MMAP_FLAGS (MAP_PRIVATE | MAP_PREFAULT_READ) 4946 #else 4947 #define ZC_MMAP_FLAGS (MAP_PRIVATE) 4948 #endif 4949 4950 /* private mmap() so we can strtok safely */ 4951 fc = (char *)mmap(NULL, fs.st_size, PROT_READ | PROT_WRITE, 4952 ZC_MMAP_FLAGS, featfd, 0); 4953 (void) close(featfd); 4954 4955 /* map ok, and last character == newline? */ 4956 if (fc == MAP_FAILED || fc[fs.st_size - 1] != '\n') { 4957 (void) munmap((void *) fc, fs.st_size); 4958 strlcat(err_badfile, file, ZFS_MAXPROPLEN); 4959 strlcat(err_badfile, " ", ZFS_MAXPROPLEN); 4960 ret_badfile = B_TRUE; 4961 continue; 4962 } 4963 4964 ret_nofiles = B_FALSE; 4965 4966 for (uint_t i = 0; i < SPA_FEATURES; i++) 4967 l_features[i] = B_FALSE; 4968 4969 /* replace final newline with NULL to ensure string ends */ 4970 fc[fs.st_size - 1] = '\0'; 4971 4972 for (line = strtok_r(fc, "\n", &ls); 4973 line != NULL; 4974 line = strtok_r(NULL, "\n", &ls)) { 4975 /* discard comments */ 4976 char *r = strchr(line, '#'); 4977 if (r != NULL) 4978 *r = '\0'; 4979 4980 for (word = strtok_r(line, ", \t", &ws); 4981 word != NULL; 4982 word = strtok_r(NULL, ", \t", &ws)) { 4983 /* Find matching feature name */ 4984 uint_t f; 4985 for (f = 0; f < SPA_FEATURES; f++) { 4986 zfeature_info_t *fi = 4987 &spa_feature_table[f]; 4988 if (strcmp(word, fi->fi_uname) == 0) { 4989 l_features[f] = B_TRUE; 4990 break; 4991 } 4992 } 4993 if (f < SPA_FEATURES) 4994 continue; 4995 4996 /* found an unrecognized word */ 4997 /* lightly sanitize it */ 4998 if (strlen(word) > 32) 4999 word[32] = '\0'; 5000 for (char *c = word; *c != '\0'; c++) 5001 if (!isprint(*c)) 5002 *c = '?'; 5003 5004 strlcat(err_badtoken, word, ZFS_MAXPROPLEN); 5005 strlcat(err_badtoken, " ", ZFS_MAXPROPLEN); 5006 if (source == Z_SYSCONF) 5007 ret_badtoken = B_TRUE; 5008 else 5009 ret_warntoken = B_TRUE; 5010 } 5011 } 5012 (void) munmap((void *) fc, fs.st_size); 5013 5014 if (features != NULL) 5015 for (uint_t i = 0; i < SPA_FEATURES; i++) 5016 features[i] &= l_features[i]; 5017 } 5018 (void) close(sdirfd); 5019 (void) close(ddirfd); 5020 5021 /* Return the most serious error */ 5022 if (ret_badfile) { 5023 if (report != NULL) 5024 snprintf(report, rlen, gettext("could not read/" 5025 "parse feature file(s): %s"), err_badfile); 5026 return (ZPOOL_COMPATIBILITY_BADFILE); 5027 } 5028 if (ret_nofiles) { 5029 if (report != NULL) 5030 strlcpy(report, 5031 gettext("no valid compatibility files specified"), 5032 rlen); 5033 return (ZPOOL_COMPATIBILITY_NOFILES); 5034 } 5035 if (ret_badtoken) { 5036 if (report != NULL) 5037 snprintf(report, rlen, gettext("invalid feature " 5038 "name(s) in local compatibility files: %s"), 5039 err_badtoken); 5040 return (ZPOOL_COMPATIBILITY_BADTOKEN); 5041 } 5042 if (ret_warntoken) { 5043 if (report != NULL) 5044 snprintf(report, rlen, gettext("unrecognized feature " 5045 "name(s) in distribution compatibility files: %s"), 5046 err_badtoken); 5047 return (ZPOOL_COMPATIBILITY_WARNTOKEN); 5048 } 5049 if (report != NULL) 5050 strlcpy(report, gettext("compatibility set ok"), rlen); 5051 return (ZPOOL_COMPATIBILITY_OK); 5052 } 5053 5054 static int 5055 zpool_vdev_guid(zpool_handle_t *zhp, const char *vdevname, uint64_t *vdev_guid) 5056 { 5057 nvlist_t *tgt; 5058 boolean_t avail_spare, l2cache; 5059 5060 verify(zhp != NULL); 5061 if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) { 5062 char errbuf[ERRBUFLEN]; 5063 (void) snprintf(errbuf, sizeof (errbuf), 5064 dgettext(TEXT_DOMAIN, "pool is in an unavailable state")); 5065 return (zfs_error(zhp->zpool_hdl, EZFS_POOLUNAVAIL, errbuf)); 5066 } 5067 5068 if ((tgt = zpool_find_vdev(zhp, vdevname, &avail_spare, &l2cache, 5069 NULL)) == NULL) { 5070 char errbuf[ERRBUFLEN]; 5071 (void) snprintf(errbuf, sizeof (errbuf), 5072 dgettext(TEXT_DOMAIN, "can not find %s in %s"), 5073 vdevname, zhp->zpool_name); 5074 return (zfs_error(zhp->zpool_hdl, EZFS_NODEVICE, errbuf)); 5075 } 5076 5077 *vdev_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 5078 return (0); 5079 } 5080 5081 /* 5082 * Get a vdev property value for 'prop' and return the value in 5083 * a pre-allocated buffer. 5084 */ 5085 int 5086 zpool_get_vdev_prop_value(nvlist_t *nvprop, vdev_prop_t prop, char *prop_name, 5087 char *buf, size_t len, zprop_source_t *srctype, boolean_t literal) 5088 { 5089 nvlist_t *nv; 5090 const char *strval; 5091 uint64_t intval; 5092 zprop_source_t src = ZPROP_SRC_NONE; 5093 5094 if (prop == VDEV_PROP_USERPROP) { 5095 /* user property, prop_name must contain the property name */ 5096 assert(prop_name != NULL); 5097 if (nvlist_lookup_nvlist(nvprop, prop_name, &nv) == 0) { 5098 src = fnvlist_lookup_uint64(nv, ZPROP_SOURCE); 5099 strval = fnvlist_lookup_string(nv, ZPROP_VALUE); 5100 } else { 5101 /* user prop not found */ 5102 return (-1); 5103 } 5104 (void) strlcpy(buf, strval, len); 5105 if (srctype) 5106 *srctype = src; 5107 return (0); 5108 } 5109 5110 if (prop_name == NULL) 5111 prop_name = (char *)vdev_prop_to_name(prop); 5112 5113 switch (vdev_prop_get_type(prop)) { 5114 case PROP_TYPE_STRING: 5115 if (nvlist_lookup_nvlist(nvprop, prop_name, &nv) == 0) { 5116 src = fnvlist_lookup_uint64(nv, ZPROP_SOURCE); 5117 strval = fnvlist_lookup_string(nv, ZPROP_VALUE); 5118 } else { 5119 src = ZPROP_SRC_DEFAULT; 5120 if ((strval = vdev_prop_default_string(prop)) == NULL) 5121 strval = "-"; 5122 } 5123 (void) strlcpy(buf, strval, len); 5124 break; 5125 5126 case PROP_TYPE_NUMBER: 5127 if (nvlist_lookup_nvlist(nvprop, prop_name, &nv) == 0) { 5128 src = fnvlist_lookup_uint64(nv, ZPROP_SOURCE); 5129 intval = fnvlist_lookup_uint64(nv, ZPROP_VALUE); 5130 } else { 5131 src = ZPROP_SRC_DEFAULT; 5132 intval = vdev_prop_default_numeric(prop); 5133 } 5134 5135 switch (prop) { 5136 case VDEV_PROP_ASIZE: 5137 case VDEV_PROP_PSIZE: 5138 case VDEV_PROP_SIZE: 5139 case VDEV_PROP_BOOTSIZE: 5140 case VDEV_PROP_ALLOCATED: 5141 case VDEV_PROP_FREE: 5142 case VDEV_PROP_READ_ERRORS: 5143 case VDEV_PROP_WRITE_ERRORS: 5144 case VDEV_PROP_CHECKSUM_ERRORS: 5145 case VDEV_PROP_INITIALIZE_ERRORS: 5146 case VDEV_PROP_OPS_NULL: 5147 case VDEV_PROP_OPS_READ: 5148 case VDEV_PROP_OPS_WRITE: 5149 case VDEV_PROP_OPS_FREE: 5150 case VDEV_PROP_OPS_CLAIM: 5151 case VDEV_PROP_OPS_TRIM: 5152 case VDEV_PROP_BYTES_NULL: 5153 case VDEV_PROP_BYTES_READ: 5154 case VDEV_PROP_BYTES_WRITE: 5155 case VDEV_PROP_BYTES_FREE: 5156 case VDEV_PROP_BYTES_CLAIM: 5157 case VDEV_PROP_BYTES_TRIM: 5158 if (literal) { 5159 (void) snprintf(buf, len, "%llu", 5160 (u_longlong_t)intval); 5161 } else { 5162 (void) zfs_nicenum(intval, buf, len); 5163 } 5164 break; 5165 case VDEV_PROP_EXPANDSZ: 5166 if (intval == 0) { 5167 (void) strlcpy(buf, "-", len); 5168 } else if (literal) { 5169 (void) snprintf(buf, len, "%llu", 5170 (u_longlong_t)intval); 5171 } else { 5172 (void) zfs_nicenum(intval, buf, len); 5173 } 5174 break; 5175 case VDEV_PROP_CAPACITY: 5176 if (literal) { 5177 (void) snprintf(buf, len, "%llu", 5178 (u_longlong_t)intval); 5179 } else { 5180 (void) snprintf(buf, len, "%llu%%", 5181 (u_longlong_t)intval); 5182 } 5183 break; 5184 case VDEV_PROP_CHECKSUM_N: 5185 case VDEV_PROP_CHECKSUM_T: 5186 case VDEV_PROP_IO_N: 5187 case VDEV_PROP_IO_T: 5188 if (intval == UINT64_MAX) { 5189 (void) strlcpy(buf, "-", len); 5190 } else { 5191 (void) snprintf(buf, len, "%llu", 5192 (u_longlong_t)intval); 5193 } 5194 break; 5195 case VDEV_PROP_FRAGMENTATION: 5196 if (intval == UINT64_MAX) { 5197 (void) strlcpy(buf, "-", len); 5198 } else { 5199 (void) snprintf(buf, len, "%llu%%", 5200 (u_longlong_t)intval); 5201 } 5202 break; 5203 case VDEV_PROP_STATE: 5204 if (literal) { 5205 (void) snprintf(buf, len, "%llu", 5206 (u_longlong_t)intval); 5207 } else { 5208 (void) strlcpy(buf, zpool_state_to_name(intval, 5209 VDEV_AUX_NONE), len); 5210 } 5211 break; 5212 default: 5213 (void) snprintf(buf, len, "%llu", 5214 (u_longlong_t)intval); 5215 } 5216 break; 5217 5218 case PROP_TYPE_INDEX: 5219 if (nvlist_lookup_nvlist(nvprop, prop_name, &nv) == 0) { 5220 src = fnvlist_lookup_uint64(nv, ZPROP_SOURCE); 5221 intval = fnvlist_lookup_uint64(nv, ZPROP_VALUE); 5222 } else { 5223 src = ZPROP_SRC_DEFAULT; 5224 intval = vdev_prop_default_numeric(prop); 5225 } 5226 if (vdev_prop_index_to_string(prop, intval, 5227 (const char **)&strval) != 0) 5228 return (-1); 5229 (void) strlcpy(buf, strval, len); 5230 break; 5231 5232 default: 5233 abort(); 5234 } 5235 5236 if (srctype) 5237 *srctype = src; 5238 5239 return (0); 5240 } 5241 5242 /* 5243 * Get a vdev property value for 'prop_name' and return the value in 5244 * a pre-allocated buffer. 5245 */ 5246 int 5247 zpool_get_vdev_prop(zpool_handle_t *zhp, const char *vdevname, vdev_prop_t prop, 5248 char *prop_name, char *buf, size_t len, zprop_source_t *srctype, 5249 boolean_t literal) 5250 { 5251 nvlist_t *reqnvl, *reqprops; 5252 nvlist_t *retprops = NULL; 5253 uint64_t vdev_guid = 0; 5254 int ret; 5255 5256 if ((ret = zpool_vdev_guid(zhp, vdevname, &vdev_guid)) != 0) 5257 return (ret); 5258 5259 if (nvlist_alloc(&reqnvl, NV_UNIQUE_NAME, 0) != 0) 5260 return (no_memory(zhp->zpool_hdl)); 5261 if (nvlist_alloc(&reqprops, NV_UNIQUE_NAME, 0) != 0) 5262 return (no_memory(zhp->zpool_hdl)); 5263 5264 fnvlist_add_uint64(reqnvl, ZPOOL_VDEV_PROPS_GET_VDEV, vdev_guid); 5265 5266 if (prop != VDEV_PROP_USERPROP) { 5267 /* prop_name overrides prop value */ 5268 if (prop_name != NULL) 5269 prop = vdev_name_to_prop(prop_name); 5270 else 5271 prop_name = (char *)vdev_prop_to_name(prop); 5272 assert(prop < VDEV_NUM_PROPS); 5273 } 5274 5275 assert(prop_name != NULL); 5276 if (nvlist_add_uint64(reqprops, prop_name, prop) != 0) { 5277 nvlist_free(reqnvl); 5278 nvlist_free(reqprops); 5279 return (no_memory(zhp->zpool_hdl)); 5280 } 5281 5282 fnvlist_add_nvlist(reqnvl, ZPOOL_VDEV_PROPS_GET_PROPS, reqprops); 5283 5284 ret = lzc_get_vdev_prop(zhp->zpool_name, reqnvl, &retprops); 5285 5286 if (ret == 0) { 5287 ret = zpool_get_vdev_prop_value(retprops, prop, prop_name, buf, 5288 len, srctype, literal); 5289 } else { 5290 char errbuf[ERRBUFLEN]; 5291 (void) snprintf(errbuf, sizeof (errbuf), 5292 dgettext(TEXT_DOMAIN, "cannot get vdev property %s from" 5293 " %s in %s"), prop_name, vdevname, zhp->zpool_name); 5294 (void) zpool_standard_error(zhp->zpool_hdl, ret, errbuf); 5295 } 5296 5297 nvlist_free(reqnvl); 5298 nvlist_free(reqprops); 5299 nvlist_free(retprops); 5300 5301 return (ret); 5302 } 5303 5304 /* 5305 * Get all vdev properties 5306 */ 5307 int 5308 zpool_get_all_vdev_props(zpool_handle_t *zhp, const char *vdevname, 5309 nvlist_t **outnvl) 5310 { 5311 nvlist_t *nvl = NULL; 5312 uint64_t vdev_guid = 0; 5313 int ret; 5314 5315 if ((ret = zpool_vdev_guid(zhp, vdevname, &vdev_guid)) != 0) 5316 return (ret); 5317 5318 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5319 return (no_memory(zhp->zpool_hdl)); 5320 5321 fnvlist_add_uint64(nvl, ZPOOL_VDEV_PROPS_GET_VDEV, vdev_guid); 5322 5323 ret = lzc_get_vdev_prop(zhp->zpool_name, nvl, outnvl); 5324 5325 nvlist_free(nvl); 5326 5327 if (ret) { 5328 char errbuf[ERRBUFLEN]; 5329 (void) snprintf(errbuf, sizeof (errbuf), 5330 dgettext(TEXT_DOMAIN, "cannot get vdev properties for" 5331 " %s in %s"), vdevname, zhp->zpool_name); 5332 (void) zpool_standard_error(zhp->zpool_hdl, errno, errbuf); 5333 } 5334 5335 return (ret); 5336 } 5337 5338 /* 5339 * Set vdev property 5340 */ 5341 int 5342 zpool_set_vdev_prop(zpool_handle_t *zhp, const char *vdevname, 5343 const char *propname, const char *propval) 5344 { 5345 int ret; 5346 nvlist_t *nvl = NULL; 5347 nvlist_t *outnvl = NULL; 5348 nvlist_t *props; 5349 nvlist_t *realprops; 5350 prop_flags_t flags = { 0 }; 5351 uint64_t version; 5352 uint64_t vdev_guid; 5353 5354 if ((ret = zpool_vdev_guid(zhp, vdevname, &vdev_guid)) != 0) 5355 return (ret); 5356 5357 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5358 return (no_memory(zhp->zpool_hdl)); 5359 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 5360 return (no_memory(zhp->zpool_hdl)); 5361 5362 fnvlist_add_uint64(nvl, ZPOOL_VDEV_PROPS_SET_VDEV, vdev_guid); 5363 5364 if (nvlist_add_string(props, propname, propval) != 0) { 5365 nvlist_free(props); 5366 return (no_memory(zhp->zpool_hdl)); 5367 } 5368 5369 char errbuf[ERRBUFLEN]; 5370 (void) snprintf(errbuf, sizeof (errbuf), 5371 dgettext(TEXT_DOMAIN, "cannot set property %s for %s on %s"), 5372 propname, vdevname, zhp->zpool_name); 5373 5374 flags.vdevprop = 1; 5375 version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL); 5376 if ((realprops = zpool_valid_proplist(zhp->zpool_hdl, 5377 zhp->zpool_name, props, version, flags, errbuf)) == NULL) { 5378 nvlist_free(props); 5379 nvlist_free(nvl); 5380 return (-1); 5381 } 5382 5383 nvlist_free(props); 5384 props = realprops; 5385 5386 fnvlist_add_nvlist(nvl, ZPOOL_VDEV_PROPS_SET_PROPS, props); 5387 5388 ret = lzc_set_vdev_prop(zhp->zpool_name, nvl, &outnvl); 5389 5390 nvlist_free(props); 5391 nvlist_free(nvl); 5392 nvlist_free(outnvl); 5393 5394 if (ret) 5395 (void) zpool_standard_error(zhp->zpool_hdl, errno, errbuf); 5396 5397 return (ret); 5398 } 5399