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 /* 3040 * Lookup the nvlist for a given vdev. 3041 */ 3042 nvlist_t * 3043 zpool_find_vdev(zpool_handle_t *zhp, const char *path, boolean_t *avail_spare, 3044 boolean_t *l2cache, boolean_t *log) 3045 { 3046 char *end; 3047 nvlist_t *nvroot, *search, *ret; 3048 uint64_t guid; 3049 boolean_t __avail_spare, __l2cache, __log; 3050 3051 search = fnvlist_alloc(); 3052 3053 guid = strtoull(path, &end, 0); 3054 if (guid != 0 && *end == '\0') { 3055 fnvlist_add_uint64(search, ZPOOL_CONFIG_GUID, guid); 3056 } else if (zpool_vdev_is_interior(path)) { 3057 fnvlist_add_string(search, ZPOOL_CONFIG_TYPE, path); 3058 } else { 3059 fnvlist_add_string(search, ZPOOL_CONFIG_PATH, path); 3060 } 3061 3062 nvroot = fnvlist_lookup_nvlist(zhp->zpool_config, 3063 ZPOOL_CONFIG_VDEV_TREE); 3064 3065 /* 3066 * User can pass NULL for avail_spare, l2cache, and log, but 3067 * we still need to provide variables to vdev_to_nvlist_iter(), so 3068 * just point them to junk variables here. 3069 */ 3070 if (!avail_spare) 3071 avail_spare = &__avail_spare; 3072 if (!l2cache) 3073 l2cache = &__l2cache; 3074 if (!log) 3075 log = &__log; 3076 3077 *avail_spare = B_FALSE; 3078 *l2cache = B_FALSE; 3079 if (log != NULL) 3080 *log = B_FALSE; 3081 ret = vdev_to_nvlist_iter(nvroot, search, avail_spare, l2cache, log); 3082 fnvlist_free(search); 3083 3084 return (ret); 3085 } 3086 3087 /* 3088 * Convert a vdev path to a GUID. Returns GUID or 0 on error. 3089 * 3090 * If is_spare, is_l2cache, or is_log is non-NULL, then store within it 3091 * if the VDEV is a spare, l2cache, or log device. If they're NULL then 3092 * ignore them. 3093 */ 3094 static uint64_t 3095 zpool_vdev_path_to_guid_impl(zpool_handle_t *zhp, const char *path, 3096 boolean_t *is_spare, boolean_t *is_l2cache, boolean_t *is_log) 3097 { 3098 boolean_t spare = B_FALSE, l2cache = B_FALSE, log = B_FALSE; 3099 nvlist_t *tgt; 3100 3101 if ((tgt = zpool_find_vdev(zhp, path, &spare, &l2cache, 3102 &log)) == NULL) 3103 return (0); 3104 3105 if (is_spare != NULL) 3106 *is_spare = spare; 3107 if (is_l2cache != NULL) 3108 *is_l2cache = l2cache; 3109 if (is_log != NULL) 3110 *is_log = log; 3111 3112 return (fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID)); 3113 } 3114 3115 /* Convert a vdev path to a GUID. Returns GUID or 0 on error. */ 3116 uint64_t 3117 zpool_vdev_path_to_guid(zpool_handle_t *zhp, const char *path) 3118 { 3119 return (zpool_vdev_path_to_guid_impl(zhp, path, NULL, NULL, NULL)); 3120 } 3121 3122 /* 3123 * Bring the specified vdev online. The 'flags' parameter is a set of the 3124 * ZFS_ONLINE_* flags. 3125 */ 3126 int 3127 zpool_vdev_online(zpool_handle_t *zhp, const char *path, int flags, 3128 vdev_state_t *newstate) 3129 { 3130 zfs_cmd_t zc = {"\0"}; 3131 char errbuf[ERRBUFLEN]; 3132 nvlist_t *tgt; 3133 boolean_t avail_spare, l2cache, islog; 3134 libzfs_handle_t *hdl = zhp->zpool_hdl; 3135 3136 if (flags & ZFS_ONLINE_EXPAND) { 3137 (void) snprintf(errbuf, sizeof (errbuf), 3138 dgettext(TEXT_DOMAIN, "cannot expand %s"), path); 3139 } else { 3140 (void) snprintf(errbuf, sizeof (errbuf), 3141 dgettext(TEXT_DOMAIN, "cannot online %s"), path); 3142 } 3143 3144 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3145 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 3146 &islog)) == NULL) 3147 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3148 3149 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3150 3151 if (!(flags & ZFS_ONLINE_SPARE) && avail_spare) 3152 return (zfs_error(hdl, EZFS_ISSPARE, errbuf)); 3153 3154 #ifndef __FreeBSD__ 3155 const char *pathname; 3156 if ((flags & ZFS_ONLINE_EXPAND || 3157 zpool_get_prop_int(zhp, ZPOOL_PROP_AUTOEXPAND, NULL)) && 3158 nvlist_lookup_string(tgt, ZPOOL_CONFIG_PATH, &pathname) == 0) { 3159 uint64_t wholedisk = 0; 3160 3161 (void) nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_WHOLE_DISK, 3162 &wholedisk); 3163 3164 /* 3165 * XXX - L2ARC 1.0 devices can't support expansion. 3166 */ 3167 if (l2cache) { 3168 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3169 "cannot expand cache devices")); 3170 return (zfs_error(hdl, EZFS_VDEVNOTSUP, errbuf)); 3171 } 3172 3173 if (wholedisk) { 3174 const char *fullpath = path; 3175 char buf[MAXPATHLEN]; 3176 int error; 3177 3178 if (path[0] != '/') { 3179 error = zfs_resolve_shortname(path, buf, 3180 sizeof (buf)); 3181 if (error != 0) 3182 return (zfs_error(hdl, EZFS_NODEVICE, 3183 errbuf)); 3184 3185 fullpath = buf; 3186 } 3187 3188 error = zpool_relabel_disk(hdl, fullpath, errbuf); 3189 if (error != 0) 3190 return (error); 3191 } 3192 } 3193 #endif 3194 3195 zc.zc_cookie = VDEV_STATE_ONLINE; 3196 zc.zc_obj = flags; 3197 3198 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) != 0) { 3199 if (errno == EINVAL) { 3200 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "was split " 3201 "from this pool into a new one. Use '%s' " 3202 "instead"), "zpool detach"); 3203 return (zfs_error(hdl, EZFS_POSTSPLIT_ONLINE, errbuf)); 3204 } 3205 return (zpool_standard_error(hdl, errno, errbuf)); 3206 } 3207 3208 *newstate = zc.zc_cookie; 3209 return (0); 3210 } 3211 3212 /* 3213 * Take the specified vdev offline 3214 */ 3215 int 3216 zpool_vdev_offline(zpool_handle_t *zhp, const char *path, boolean_t istmp) 3217 { 3218 zfs_cmd_t zc = {"\0"}; 3219 char errbuf[ERRBUFLEN]; 3220 nvlist_t *tgt; 3221 boolean_t avail_spare, l2cache; 3222 libzfs_handle_t *hdl = zhp->zpool_hdl; 3223 3224 (void) snprintf(errbuf, sizeof (errbuf), 3225 dgettext(TEXT_DOMAIN, "cannot offline %s"), path); 3226 3227 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3228 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 3229 NULL)) == NULL) 3230 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3231 3232 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3233 3234 if (avail_spare) 3235 return (zfs_error(hdl, EZFS_ISSPARE, errbuf)); 3236 3237 zc.zc_cookie = VDEV_STATE_OFFLINE; 3238 zc.zc_obj = istmp ? ZFS_OFFLINE_TEMPORARY : 0; 3239 3240 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 3241 return (0); 3242 3243 switch (errno) { 3244 case EBUSY: 3245 3246 /* 3247 * There are no other replicas of this device. 3248 */ 3249 return (zfs_error(hdl, EZFS_NOREPLICAS, errbuf)); 3250 3251 case EEXIST: 3252 /* 3253 * The log device has unplayed logs 3254 */ 3255 return (zfs_error(hdl, EZFS_UNPLAYED_LOGS, errbuf)); 3256 3257 default: 3258 return (zpool_standard_error(hdl, errno, errbuf)); 3259 } 3260 } 3261 3262 /* 3263 * Remove the specified vdev asynchronously from the configuration, so 3264 * that it may come ONLINE if reinserted. This is called from zed on 3265 * Udev remove event. 3266 * Note: We also have a similar function zpool_vdev_remove() that 3267 * removes the vdev from the pool. 3268 */ 3269 int 3270 zpool_vdev_remove_wanted(zpool_handle_t *zhp, const char *path) 3271 { 3272 zfs_cmd_t zc = {"\0"}; 3273 char errbuf[ERRBUFLEN]; 3274 nvlist_t *tgt; 3275 boolean_t avail_spare, l2cache; 3276 libzfs_handle_t *hdl = zhp->zpool_hdl; 3277 3278 (void) snprintf(errbuf, sizeof (errbuf), 3279 dgettext(TEXT_DOMAIN, "cannot remove %s"), path); 3280 3281 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3282 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 3283 NULL)) == NULL) 3284 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3285 3286 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3287 3288 zc.zc_cookie = VDEV_STATE_REMOVED; 3289 3290 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 3291 return (0); 3292 3293 return (zpool_standard_error(hdl, errno, errbuf)); 3294 } 3295 3296 /* 3297 * Mark the given vdev faulted. 3298 */ 3299 int 3300 zpool_vdev_fault(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux) 3301 { 3302 zfs_cmd_t zc = {"\0"}; 3303 char errbuf[ERRBUFLEN]; 3304 libzfs_handle_t *hdl = zhp->zpool_hdl; 3305 3306 (void) snprintf(errbuf, sizeof (errbuf), 3307 dgettext(TEXT_DOMAIN, "cannot fault %llu"), (u_longlong_t)guid); 3308 3309 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3310 zc.zc_guid = guid; 3311 zc.zc_cookie = VDEV_STATE_FAULTED; 3312 zc.zc_obj = aux; 3313 3314 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 3315 return (0); 3316 3317 switch (errno) { 3318 case EBUSY: 3319 3320 /* 3321 * There are no other replicas of this device. 3322 */ 3323 return (zfs_error(hdl, EZFS_NOREPLICAS, errbuf)); 3324 3325 default: 3326 return (zpool_standard_error(hdl, errno, errbuf)); 3327 } 3328 3329 } 3330 3331 /* 3332 * Generic set vdev state function 3333 */ 3334 static int 3335 zpool_vdev_set_state(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux, 3336 vdev_state_t state) 3337 { 3338 zfs_cmd_t zc = {"\0"}; 3339 char errbuf[ERRBUFLEN]; 3340 libzfs_handle_t *hdl = zhp->zpool_hdl; 3341 3342 (void) snprintf(errbuf, sizeof (errbuf), 3343 dgettext(TEXT_DOMAIN, "cannot set %s %llu"), 3344 zpool_state_to_name(state, aux), (u_longlong_t)guid); 3345 3346 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3347 zc.zc_guid = guid; 3348 zc.zc_cookie = state; 3349 zc.zc_obj = aux; 3350 3351 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SET_STATE, &zc) == 0) 3352 return (0); 3353 3354 return (zpool_standard_error(hdl, errno, errbuf)); 3355 } 3356 3357 /* 3358 * Mark the given vdev degraded. 3359 */ 3360 int 3361 zpool_vdev_degrade(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux) 3362 { 3363 return (zpool_vdev_set_state(zhp, guid, aux, VDEV_STATE_DEGRADED)); 3364 } 3365 3366 /* 3367 * Mark the given vdev as in a removed state (as if the device does not exist). 3368 * 3369 * This is different than zpool_vdev_remove() which does a removal of a device 3370 * from the pool (but the device does exist). 3371 */ 3372 int 3373 zpool_vdev_set_removed_state(zpool_handle_t *zhp, uint64_t guid, vdev_aux_t aux) 3374 { 3375 return (zpool_vdev_set_state(zhp, guid, aux, VDEV_STATE_REMOVED)); 3376 } 3377 3378 /* 3379 * Returns TRUE if the given nvlist is a vdev that was originally swapped in as 3380 * a hot spare. 3381 */ 3382 static boolean_t 3383 is_replacing_spare(nvlist_t *search, nvlist_t *tgt, int which) 3384 { 3385 nvlist_t **child; 3386 uint_t c, children; 3387 3388 if (nvlist_lookup_nvlist_array(search, ZPOOL_CONFIG_CHILDREN, &child, 3389 &children) == 0) { 3390 const char *type = fnvlist_lookup_string(search, 3391 ZPOOL_CONFIG_TYPE); 3392 if ((strcmp(type, VDEV_TYPE_SPARE) == 0 || 3393 strcmp(type, VDEV_TYPE_DRAID_SPARE) == 0) && 3394 children == 2 && child[which] == tgt) 3395 return (B_TRUE); 3396 3397 for (c = 0; c < children; c++) 3398 if (is_replacing_spare(child[c], tgt, which)) 3399 return (B_TRUE); 3400 } 3401 3402 return (B_FALSE); 3403 } 3404 3405 /* 3406 * Attach new_disk (fully described by nvroot) to old_disk. 3407 * If 'replacing' is specified, the new disk will replace the old one. 3408 */ 3409 int 3410 zpool_vdev_attach(zpool_handle_t *zhp, const char *old_disk, 3411 const char *new_disk, nvlist_t *nvroot, int replacing, boolean_t rebuild) 3412 { 3413 zfs_cmd_t zc = {"\0"}; 3414 char errbuf[ERRBUFLEN]; 3415 int ret; 3416 nvlist_t *tgt; 3417 boolean_t avail_spare, l2cache, islog; 3418 uint64_t val; 3419 char *newname; 3420 const char *type; 3421 nvlist_t **child; 3422 uint_t children; 3423 nvlist_t *config_root; 3424 libzfs_handle_t *hdl = zhp->zpool_hdl; 3425 3426 if (replacing) 3427 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3428 "cannot replace %s with %s"), old_disk, new_disk); 3429 else 3430 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN, 3431 "cannot attach %s to %s"), new_disk, old_disk); 3432 3433 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3434 if ((tgt = zpool_find_vdev(zhp, old_disk, &avail_spare, &l2cache, 3435 &islog)) == NULL) 3436 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3437 3438 if (avail_spare) 3439 return (zfs_error(hdl, EZFS_ISSPARE, errbuf)); 3440 3441 if (l2cache) 3442 return (zfs_error(hdl, EZFS_ISL2CACHE, errbuf)); 3443 3444 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3445 zc.zc_cookie = replacing; 3446 zc.zc_simple = rebuild; 3447 3448 if (rebuild && 3449 zfeature_lookup_guid("org.openzfs:device_rebuild", NULL) != 0) { 3450 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3451 "the loaded zfs module doesn't support device rebuilds")); 3452 return (zfs_error(hdl, EZFS_POOL_NOTSUP, errbuf)); 3453 } 3454 3455 type = fnvlist_lookup_string(tgt, ZPOOL_CONFIG_TYPE); 3456 if (strcmp(type, VDEV_TYPE_RAIDZ) == 0 && 3457 zfeature_lookup_guid("org.openzfs:raidz_expansion", NULL) != 0) { 3458 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3459 "the loaded zfs module doesn't support raidz expansion")); 3460 return (zfs_error(hdl, EZFS_POOL_NOTSUP, errbuf)); 3461 } 3462 3463 if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, 3464 &child, &children) != 0 || children != 1) { 3465 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3466 "new device must be a single disk")); 3467 return (zfs_error(hdl, EZFS_INVALCONFIG, errbuf)); 3468 } 3469 3470 config_root = fnvlist_lookup_nvlist(zpool_get_config(zhp, NULL), 3471 ZPOOL_CONFIG_VDEV_TREE); 3472 3473 if ((newname = zpool_vdev_name(NULL, NULL, child[0], 0)) == NULL) 3474 return (-1); 3475 3476 /* 3477 * If the target is a hot spare that has been swapped in, we can only 3478 * replace it with another hot spare. 3479 */ 3480 if (replacing && 3481 nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_IS_SPARE, &val) == 0 && 3482 (zpool_find_vdev(zhp, newname, &avail_spare, &l2cache, 3483 NULL) == NULL || !avail_spare) && 3484 is_replacing_spare(config_root, tgt, 1)) { 3485 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3486 "can only be replaced by another hot spare")); 3487 free(newname); 3488 return (zfs_error(hdl, EZFS_BADTARGET, errbuf)); 3489 } 3490 3491 free(newname); 3492 3493 zcmd_write_conf_nvlist(hdl, &zc, nvroot); 3494 3495 ret = zfs_ioctl(hdl, ZFS_IOC_VDEV_ATTACH, &zc); 3496 3497 zcmd_free_nvlists(&zc); 3498 3499 if (ret == 0) 3500 return (0); 3501 3502 switch (errno) { 3503 case ENOTSUP: 3504 /* 3505 * Can't attach to or replace this type of vdev. 3506 */ 3507 if (replacing) { 3508 uint64_t version = zpool_get_prop_int(zhp, 3509 ZPOOL_PROP_VERSION, NULL); 3510 3511 if (islog) { 3512 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3513 "cannot replace a log with a spare")); 3514 } else if (rebuild) { 3515 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3516 "only mirror and dRAID vdevs support " 3517 "sequential reconstruction")); 3518 } else if (zpool_is_draid_spare(new_disk)) { 3519 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3520 "dRAID spares can only replace child " 3521 "devices in their parent's dRAID vdev")); 3522 } else if (version >= SPA_VERSION_MULTI_REPLACE) { 3523 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3524 "already in replacing/spare config; wait " 3525 "for completion or use 'zpool detach'")); 3526 } else { 3527 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3528 "cannot replace a replacing device")); 3529 } 3530 } else if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) { 3531 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3532 "raidz_expansion feature must be enabled " 3533 "in order to attach a device to raidz")); 3534 } else { 3535 char status[64] = {0}; 3536 zpool_prop_get_feature(zhp, 3537 "feature@device_rebuild", status, 63); 3538 if (rebuild && 3539 strncmp(status, ZFS_FEATURE_DISABLED, 64) == 0) { 3540 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3541 "device_rebuild feature must be enabled " 3542 "in order to use sequential " 3543 "reconstruction")); 3544 } else { 3545 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3546 "can only attach to mirrors and top-level " 3547 "disks")); 3548 } 3549 } 3550 (void) zfs_error(hdl, EZFS_BADTARGET, errbuf); 3551 break; 3552 3553 case EINVAL: 3554 /* 3555 * The new device must be a single disk. 3556 */ 3557 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3558 "new device must be a single disk")); 3559 (void) zfs_error(hdl, EZFS_INVALCONFIG, errbuf); 3560 break; 3561 3562 case EBUSY: 3563 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "%s is busy"), 3564 new_disk); 3565 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 3566 break; 3567 3568 case EOVERFLOW: 3569 /* 3570 * The new device is too small. 3571 */ 3572 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3573 "device is too small")); 3574 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 3575 break; 3576 3577 case EDOM: 3578 /* 3579 * The new device has a different optimal sector size. 3580 */ 3581 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3582 "new device has a different optimal sector size; use the " 3583 "option '-o ashift=N' to override the optimal size")); 3584 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 3585 break; 3586 3587 case ENAMETOOLONG: 3588 /* 3589 * The resulting top-level vdev spec won't fit in the label. 3590 */ 3591 (void) zfs_error(hdl, EZFS_DEVOVERFLOW, errbuf); 3592 break; 3593 3594 case ENXIO: 3595 /* 3596 * The existing raidz vdev has offline children 3597 */ 3598 if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) { 3599 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3600 "raidz vdev has devices that are are offline or " 3601 "being replaced")); 3602 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 3603 break; 3604 } else { 3605 (void) zpool_standard_error(hdl, errno, errbuf); 3606 } 3607 break; 3608 3609 case EADDRINUSE: 3610 /* 3611 * The boot reserved area is already being used (FreeBSD) 3612 */ 3613 if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) { 3614 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3615 "the reserved boot area needed for the expansion " 3616 "is already being used by a boot loader")); 3617 (void) zfs_error(hdl, EZFS_BADDEV, errbuf); 3618 } else { 3619 (void) zpool_standard_error(hdl, errno, errbuf); 3620 } 3621 break; 3622 default: 3623 (void) zpool_standard_error(hdl, errno, errbuf); 3624 } 3625 3626 return (-1); 3627 } 3628 3629 /* 3630 * Detach the specified device. 3631 */ 3632 int 3633 zpool_vdev_detach(zpool_handle_t *zhp, const char *path) 3634 { 3635 zfs_cmd_t zc = {"\0"}; 3636 char errbuf[ERRBUFLEN]; 3637 nvlist_t *tgt; 3638 boolean_t avail_spare, l2cache; 3639 libzfs_handle_t *hdl = zhp->zpool_hdl; 3640 3641 (void) snprintf(errbuf, sizeof (errbuf), 3642 dgettext(TEXT_DOMAIN, "cannot detach %s"), path); 3643 3644 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3645 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 3646 NULL)) == NULL) 3647 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3648 3649 if (avail_spare) 3650 return (zfs_error(hdl, EZFS_ISSPARE, errbuf)); 3651 3652 if (l2cache) 3653 return (zfs_error(hdl, EZFS_ISL2CACHE, errbuf)); 3654 3655 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 3656 3657 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_DETACH, &zc) == 0) 3658 return (0); 3659 3660 switch (errno) { 3661 3662 case ENOTSUP: 3663 /* 3664 * Can't detach from this type of vdev. 3665 */ 3666 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "only " 3667 "applicable to mirror and replacing vdevs")); 3668 (void) zfs_error(hdl, EZFS_BADTARGET, errbuf); 3669 break; 3670 3671 case EBUSY: 3672 /* 3673 * There are no other replicas of this device. 3674 */ 3675 (void) zfs_error(hdl, EZFS_NOREPLICAS, errbuf); 3676 break; 3677 3678 default: 3679 (void) zpool_standard_error(hdl, errno, errbuf); 3680 } 3681 3682 return (-1); 3683 } 3684 3685 /* 3686 * Find a mirror vdev in the source nvlist. 3687 * 3688 * The mchild array contains a list of disks in one of the top-level mirrors 3689 * of the source pool. The schild array contains a list of disks that the 3690 * user specified on the command line. We loop over the mchild array to 3691 * see if any entry in the schild array matches. 3692 * 3693 * If a disk in the mchild array is found in the schild array, we return 3694 * the index of that entry. Otherwise we return -1. 3695 */ 3696 static int 3697 find_vdev_entry(zpool_handle_t *zhp, nvlist_t **mchild, uint_t mchildren, 3698 nvlist_t **schild, uint_t schildren) 3699 { 3700 uint_t mc; 3701 3702 for (mc = 0; mc < mchildren; mc++) { 3703 uint_t sc; 3704 char *mpath = zpool_vdev_name(zhp->zpool_hdl, zhp, 3705 mchild[mc], 0); 3706 3707 for (sc = 0; sc < schildren; sc++) { 3708 char *spath = zpool_vdev_name(zhp->zpool_hdl, zhp, 3709 schild[sc], 0); 3710 boolean_t result = (strcmp(mpath, spath) == 0); 3711 3712 free(spath); 3713 if (result) { 3714 free(mpath); 3715 return (mc); 3716 } 3717 } 3718 3719 free(mpath); 3720 } 3721 3722 return (-1); 3723 } 3724 3725 /* 3726 * Split a mirror pool. If newroot points to null, then a new nvlist 3727 * is generated and it is the responsibility of the caller to free it. 3728 */ 3729 int 3730 zpool_vdev_split(zpool_handle_t *zhp, char *newname, nvlist_t **newroot, 3731 nvlist_t *props, splitflags_t flags) 3732 { 3733 zfs_cmd_t zc = {"\0"}; 3734 char errbuf[ERRBUFLEN]; 3735 const char *bias; 3736 nvlist_t *tree, *config, **child, **newchild, *newconfig = NULL; 3737 nvlist_t **varray = NULL, *zc_props = NULL; 3738 uint_t c, children, newchildren, lastlog = 0, vcount, found = 0; 3739 libzfs_handle_t *hdl = zhp->zpool_hdl; 3740 uint64_t vers, readonly = B_FALSE; 3741 boolean_t freelist = B_FALSE, memory_err = B_TRUE; 3742 int retval = 0; 3743 3744 (void) snprintf(errbuf, sizeof (errbuf), 3745 dgettext(TEXT_DOMAIN, "Unable to split %s"), zhp->zpool_name); 3746 3747 if (!zpool_name_valid(hdl, B_FALSE, newname)) 3748 return (zfs_error(hdl, EZFS_INVALIDNAME, errbuf)); 3749 3750 if ((config = zpool_get_config(zhp, NULL)) == NULL) { 3751 (void) fprintf(stderr, gettext("Internal error: unable to " 3752 "retrieve pool configuration\n")); 3753 return (-1); 3754 } 3755 3756 tree = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE); 3757 vers = fnvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION); 3758 3759 if (props) { 3760 prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE }; 3761 if ((zc_props = zpool_valid_proplist(hdl, zhp->zpool_name, 3762 props, vers, flags, errbuf)) == NULL) 3763 return (-1); 3764 (void) nvlist_lookup_uint64(zc_props, 3765 zpool_prop_to_name(ZPOOL_PROP_READONLY), &readonly); 3766 if (readonly) { 3767 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3768 "property %s can only be set at import time"), 3769 zpool_prop_to_name(ZPOOL_PROP_READONLY)); 3770 return (-1); 3771 } 3772 } 3773 3774 if (nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child, 3775 &children) != 0) { 3776 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3777 "Source pool is missing vdev tree")); 3778 nvlist_free(zc_props); 3779 return (-1); 3780 } 3781 3782 varray = zfs_alloc(hdl, children * sizeof (nvlist_t *)); 3783 vcount = 0; 3784 3785 if (*newroot == NULL || 3786 nvlist_lookup_nvlist_array(*newroot, ZPOOL_CONFIG_CHILDREN, 3787 &newchild, &newchildren) != 0) 3788 newchildren = 0; 3789 3790 for (c = 0; c < children; c++) { 3791 uint64_t is_log = B_FALSE, is_hole = B_FALSE; 3792 boolean_t is_special = B_FALSE, is_dedup = B_FALSE; 3793 const char *type; 3794 nvlist_t **mchild, *vdev; 3795 uint_t mchildren; 3796 int entry; 3797 3798 /* 3799 * Unlike cache & spares, slogs are stored in the 3800 * ZPOOL_CONFIG_CHILDREN array. We filter them out here. 3801 */ 3802 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG, 3803 &is_log); 3804 (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE, 3805 &is_hole); 3806 if (is_log || is_hole) { 3807 /* 3808 * Create a hole vdev and put it in the config. 3809 */ 3810 if (nvlist_alloc(&vdev, NV_UNIQUE_NAME, 0) != 0) 3811 goto out; 3812 if (nvlist_add_string(vdev, ZPOOL_CONFIG_TYPE, 3813 VDEV_TYPE_HOLE) != 0) 3814 goto out; 3815 if (nvlist_add_uint64(vdev, ZPOOL_CONFIG_IS_HOLE, 3816 1) != 0) 3817 goto out; 3818 if (lastlog == 0) 3819 lastlog = vcount; 3820 varray[vcount++] = vdev; 3821 continue; 3822 } 3823 lastlog = 0; 3824 type = fnvlist_lookup_string(child[c], ZPOOL_CONFIG_TYPE); 3825 3826 if (strcmp(type, VDEV_TYPE_INDIRECT) == 0) { 3827 vdev = child[c]; 3828 if (nvlist_dup(vdev, &varray[vcount++], 0) != 0) 3829 goto out; 3830 continue; 3831 } else if (strcmp(type, VDEV_TYPE_MIRROR) != 0) { 3832 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3833 "Source pool must be composed only of mirrors\n")); 3834 retval = zfs_error(hdl, EZFS_INVALCONFIG, errbuf); 3835 goto out; 3836 } 3837 3838 if (nvlist_lookup_string(child[c], 3839 ZPOOL_CONFIG_ALLOCATION_BIAS, &bias) == 0) { 3840 if (strcmp(bias, VDEV_ALLOC_BIAS_SPECIAL) == 0) 3841 is_special = B_TRUE; 3842 else if (strcmp(bias, VDEV_ALLOC_BIAS_DEDUP) == 0) 3843 is_dedup = B_TRUE; 3844 } 3845 verify(nvlist_lookup_nvlist_array(child[c], 3846 ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0); 3847 3848 /* find or add an entry for this top-level vdev */ 3849 if (newchildren > 0 && 3850 (entry = find_vdev_entry(zhp, mchild, mchildren, 3851 newchild, newchildren)) >= 0) { 3852 /* We found a disk that the user specified. */ 3853 vdev = mchild[entry]; 3854 ++found; 3855 } else { 3856 /* User didn't specify a disk for this vdev. */ 3857 vdev = mchild[mchildren - 1]; 3858 } 3859 3860 if (nvlist_dup(vdev, &varray[vcount++], 0) != 0) 3861 goto out; 3862 3863 if (flags.dryrun != 0) { 3864 if (is_dedup == B_TRUE) { 3865 if (nvlist_add_string(varray[vcount - 1], 3866 ZPOOL_CONFIG_ALLOCATION_BIAS, 3867 VDEV_ALLOC_BIAS_DEDUP) != 0) 3868 goto out; 3869 } else if (is_special == B_TRUE) { 3870 if (nvlist_add_string(varray[vcount - 1], 3871 ZPOOL_CONFIG_ALLOCATION_BIAS, 3872 VDEV_ALLOC_BIAS_SPECIAL) != 0) 3873 goto out; 3874 } 3875 } 3876 } 3877 3878 /* did we find every disk the user specified? */ 3879 if (found != newchildren) { 3880 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "Device list must " 3881 "include at most one disk from each mirror")); 3882 retval = zfs_error(hdl, EZFS_INVALCONFIG, errbuf); 3883 goto out; 3884 } 3885 3886 /* Prepare the nvlist for populating. */ 3887 if (*newroot == NULL) { 3888 if (nvlist_alloc(newroot, NV_UNIQUE_NAME, 0) != 0) 3889 goto out; 3890 freelist = B_TRUE; 3891 if (nvlist_add_string(*newroot, ZPOOL_CONFIG_TYPE, 3892 VDEV_TYPE_ROOT) != 0) 3893 goto out; 3894 } else { 3895 verify(nvlist_remove_all(*newroot, ZPOOL_CONFIG_CHILDREN) == 0); 3896 } 3897 3898 /* Add all the children we found */ 3899 if (nvlist_add_nvlist_array(*newroot, ZPOOL_CONFIG_CHILDREN, 3900 (const nvlist_t **)varray, lastlog == 0 ? vcount : lastlog) != 0) 3901 goto out; 3902 3903 /* 3904 * If we're just doing a dry run, exit now with success. 3905 */ 3906 if (flags.dryrun) { 3907 memory_err = B_FALSE; 3908 freelist = B_FALSE; 3909 goto out; 3910 } 3911 3912 /* now build up the config list & call the ioctl */ 3913 if (nvlist_alloc(&newconfig, NV_UNIQUE_NAME, 0) != 0) 3914 goto out; 3915 3916 if (nvlist_add_nvlist(newconfig, 3917 ZPOOL_CONFIG_VDEV_TREE, *newroot) != 0 || 3918 nvlist_add_string(newconfig, 3919 ZPOOL_CONFIG_POOL_NAME, newname) != 0 || 3920 nvlist_add_uint64(newconfig, ZPOOL_CONFIG_VERSION, vers) != 0) 3921 goto out; 3922 3923 /* 3924 * The new pool is automatically part of the namespace unless we 3925 * explicitly export it. 3926 */ 3927 if (!flags.import) 3928 zc.zc_cookie = ZPOOL_EXPORT_AFTER_SPLIT; 3929 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3930 (void) strlcpy(zc.zc_string, newname, sizeof (zc.zc_string)); 3931 zcmd_write_conf_nvlist(hdl, &zc, newconfig); 3932 if (zc_props != NULL) 3933 zcmd_write_src_nvlist(hdl, &zc, zc_props); 3934 3935 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_SPLIT, &zc) != 0) { 3936 retval = zpool_standard_error(hdl, errno, errbuf); 3937 goto out; 3938 } 3939 3940 freelist = B_FALSE; 3941 memory_err = B_FALSE; 3942 3943 out: 3944 if (varray != NULL) { 3945 int v; 3946 3947 for (v = 0; v < vcount; v++) 3948 nvlist_free(varray[v]); 3949 free(varray); 3950 } 3951 zcmd_free_nvlists(&zc); 3952 nvlist_free(zc_props); 3953 nvlist_free(newconfig); 3954 if (freelist) { 3955 nvlist_free(*newroot); 3956 *newroot = NULL; 3957 } 3958 3959 if (retval != 0) 3960 return (retval); 3961 3962 if (memory_err) 3963 return (no_memory(hdl)); 3964 3965 return (0); 3966 } 3967 3968 /* 3969 * Remove the given device. 3970 */ 3971 int 3972 zpool_vdev_remove(zpool_handle_t *zhp, const char *path) 3973 { 3974 zfs_cmd_t zc = {"\0"}; 3975 char errbuf[ERRBUFLEN]; 3976 nvlist_t *tgt; 3977 boolean_t avail_spare, l2cache, islog; 3978 libzfs_handle_t *hdl = zhp->zpool_hdl; 3979 uint64_t version; 3980 3981 (void) snprintf(errbuf, sizeof (errbuf), 3982 dgettext(TEXT_DOMAIN, "cannot remove %s"), path); 3983 3984 if (zpool_is_draid_spare(path)) { 3985 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3986 "dRAID spares cannot be removed")); 3987 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3988 } 3989 3990 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 3991 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 3992 &islog)) == NULL) 3993 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 3994 3995 version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL); 3996 if (islog && version < SPA_VERSION_HOLES) { 3997 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 3998 "pool must be upgraded to support log removal")); 3999 return (zfs_error(hdl, EZFS_BADVERSION, errbuf)); 4000 } 4001 4002 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 4003 4004 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_REMOVE, &zc) == 0) 4005 return (0); 4006 4007 switch (errno) { 4008 4009 case EALREADY: 4010 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4011 "removal for this vdev is already in progress.")); 4012 (void) zfs_error(hdl, EZFS_BUSY, errbuf); 4013 break; 4014 4015 case EINVAL: 4016 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4017 "invalid config; all top-level vdevs must " 4018 "have the same sector size and not be raidz.")); 4019 (void) zfs_error(hdl, EZFS_INVALCONFIG, errbuf); 4020 break; 4021 4022 case EBUSY: 4023 if (islog) { 4024 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4025 "Mount encrypted datasets to replay logs.")); 4026 } else { 4027 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4028 "Pool busy; removal may already be in progress")); 4029 } 4030 (void) zfs_error(hdl, EZFS_BUSY, errbuf); 4031 break; 4032 4033 case EACCES: 4034 if (islog) { 4035 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4036 "Mount encrypted datasets to replay logs.")); 4037 (void) zfs_error(hdl, EZFS_BUSY, errbuf); 4038 } else { 4039 (void) zpool_standard_error(hdl, errno, errbuf); 4040 } 4041 break; 4042 4043 default: 4044 (void) zpool_standard_error(hdl, errno, errbuf); 4045 } 4046 return (-1); 4047 } 4048 4049 int 4050 zpool_vdev_remove_cancel(zpool_handle_t *zhp) 4051 { 4052 zfs_cmd_t zc = {{0}}; 4053 char errbuf[ERRBUFLEN]; 4054 libzfs_handle_t *hdl = zhp->zpool_hdl; 4055 4056 (void) snprintf(errbuf, sizeof (errbuf), 4057 dgettext(TEXT_DOMAIN, "cannot cancel removal")); 4058 4059 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4060 zc.zc_cookie = 1; 4061 4062 if (zfs_ioctl(hdl, ZFS_IOC_VDEV_REMOVE, &zc) == 0) 4063 return (0); 4064 4065 return (zpool_standard_error(hdl, errno, errbuf)); 4066 } 4067 4068 int 4069 zpool_vdev_indirect_size(zpool_handle_t *zhp, const char *path, 4070 uint64_t *sizep) 4071 { 4072 char errbuf[ERRBUFLEN]; 4073 nvlist_t *tgt; 4074 boolean_t avail_spare, l2cache, islog; 4075 libzfs_handle_t *hdl = zhp->zpool_hdl; 4076 4077 (void) snprintf(errbuf, sizeof (errbuf), 4078 dgettext(TEXT_DOMAIN, "cannot determine indirect size of %s"), 4079 path); 4080 4081 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, &l2cache, 4082 &islog)) == NULL) 4083 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 4084 4085 if (avail_spare || l2cache || islog) { 4086 *sizep = 0; 4087 return (0); 4088 } 4089 4090 if (nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_INDIRECT_SIZE, sizep) != 0) { 4091 zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 4092 "indirect size not available")); 4093 return (zfs_error(hdl, EINVAL, errbuf)); 4094 } 4095 return (0); 4096 } 4097 4098 /* 4099 * Clear the errors for the pool, or the particular device if specified. 4100 */ 4101 int 4102 zpool_clear(zpool_handle_t *zhp, const char *path, nvlist_t *rewindnvl) 4103 { 4104 zfs_cmd_t zc = {"\0"}; 4105 char errbuf[ERRBUFLEN]; 4106 nvlist_t *tgt; 4107 zpool_load_policy_t policy; 4108 boolean_t avail_spare, l2cache; 4109 libzfs_handle_t *hdl = zhp->zpool_hdl; 4110 nvlist_t *nvi = NULL; 4111 int error; 4112 4113 if (path) 4114 (void) snprintf(errbuf, sizeof (errbuf), 4115 dgettext(TEXT_DOMAIN, "cannot clear errors for %s"), 4116 path); 4117 else 4118 (void) snprintf(errbuf, sizeof (errbuf), 4119 dgettext(TEXT_DOMAIN, "cannot clear errors for %s"), 4120 zhp->zpool_name); 4121 4122 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4123 if (path) { 4124 if ((tgt = zpool_find_vdev(zhp, path, &avail_spare, 4125 &l2cache, NULL)) == NULL) 4126 return (zfs_error(hdl, EZFS_NODEVICE, errbuf)); 4127 4128 /* 4129 * Don't allow error clearing for hot spares. Do allow 4130 * error clearing for l2cache devices. 4131 */ 4132 if (avail_spare) 4133 return (zfs_error(hdl, EZFS_ISSPARE, errbuf)); 4134 4135 zc.zc_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 4136 } 4137 4138 zpool_get_load_policy(rewindnvl, &policy); 4139 zc.zc_cookie = policy.zlp_rewind; 4140 4141 zcmd_alloc_dst_nvlist(hdl, &zc, zhp->zpool_config_size * 2); 4142 zcmd_write_src_nvlist(hdl, &zc, rewindnvl); 4143 4144 while ((error = zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc)) != 0 && 4145 errno == ENOMEM) 4146 zcmd_expand_dst_nvlist(hdl, &zc); 4147 4148 if (!error || ((policy.zlp_rewind & ZPOOL_TRY_REWIND) && 4149 errno != EPERM && errno != EACCES)) { 4150 if (policy.zlp_rewind & 4151 (ZPOOL_DO_REWIND | ZPOOL_TRY_REWIND)) { 4152 (void) zcmd_read_dst_nvlist(hdl, &zc, &nvi); 4153 zpool_rewind_exclaim(hdl, zc.zc_name, 4154 ((policy.zlp_rewind & ZPOOL_TRY_REWIND) != 0), 4155 nvi); 4156 nvlist_free(nvi); 4157 } 4158 zcmd_free_nvlists(&zc); 4159 return (0); 4160 } 4161 4162 zcmd_free_nvlists(&zc); 4163 return (zpool_standard_error(hdl, errno, errbuf)); 4164 } 4165 4166 /* 4167 * Similar to zpool_clear(), but takes a GUID (used by fmd). 4168 */ 4169 int 4170 zpool_vdev_clear(zpool_handle_t *zhp, uint64_t guid) 4171 { 4172 zfs_cmd_t zc = {"\0"}; 4173 char errbuf[ERRBUFLEN]; 4174 libzfs_handle_t *hdl = zhp->zpool_hdl; 4175 4176 (void) snprintf(errbuf, sizeof (errbuf), 4177 dgettext(TEXT_DOMAIN, "cannot clear errors for %llx"), 4178 (u_longlong_t)guid); 4179 4180 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4181 zc.zc_guid = guid; 4182 zc.zc_cookie = ZPOOL_NO_REWIND; 4183 4184 if (zfs_ioctl(hdl, ZFS_IOC_CLEAR, &zc) == 0) 4185 return (0); 4186 4187 return (zpool_standard_error(hdl, errno, errbuf)); 4188 } 4189 4190 /* 4191 * Change the GUID for a pool. 4192 */ 4193 int 4194 zpool_reguid(zpool_handle_t *zhp) 4195 { 4196 char errbuf[ERRBUFLEN]; 4197 libzfs_handle_t *hdl = zhp->zpool_hdl; 4198 zfs_cmd_t zc = {"\0"}; 4199 4200 (void) snprintf(errbuf, sizeof (errbuf), 4201 dgettext(TEXT_DOMAIN, "cannot reguid '%s'"), zhp->zpool_name); 4202 4203 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4204 if (zfs_ioctl(hdl, ZFS_IOC_POOL_REGUID, &zc) == 0) 4205 return (0); 4206 4207 return (zpool_standard_error(hdl, errno, errbuf)); 4208 } 4209 4210 /* 4211 * Reopen the pool. 4212 */ 4213 int 4214 zpool_reopen_one(zpool_handle_t *zhp, void *data) 4215 { 4216 libzfs_handle_t *hdl = zpool_get_handle(zhp); 4217 const char *pool_name = zpool_get_name(zhp); 4218 boolean_t *scrub_restart = data; 4219 int error; 4220 4221 error = lzc_reopen(pool_name, *scrub_restart); 4222 if (error) { 4223 return (zpool_standard_error_fmt(hdl, error, 4224 dgettext(TEXT_DOMAIN, "cannot reopen '%s'"), pool_name)); 4225 } 4226 4227 return (0); 4228 } 4229 4230 /* call into libzfs_core to execute the sync IOCTL per pool */ 4231 int 4232 zpool_sync_one(zpool_handle_t *zhp, void *data) 4233 { 4234 int ret; 4235 libzfs_handle_t *hdl = zpool_get_handle(zhp); 4236 const char *pool_name = zpool_get_name(zhp); 4237 boolean_t *force = data; 4238 nvlist_t *innvl = fnvlist_alloc(); 4239 4240 fnvlist_add_boolean_value(innvl, "force", *force); 4241 if ((ret = lzc_sync(pool_name, innvl, NULL)) != 0) { 4242 nvlist_free(innvl); 4243 return (zpool_standard_error_fmt(hdl, ret, 4244 dgettext(TEXT_DOMAIN, "sync '%s' failed"), pool_name)); 4245 } 4246 nvlist_free(innvl); 4247 4248 return (0); 4249 } 4250 4251 #define PATH_BUF_LEN 64 4252 4253 /* 4254 * Given a vdev, return the name to display in iostat. If the vdev has a path, 4255 * we use that, stripping off any leading "/dev/dsk/"; if not, we use the type. 4256 * We also check if this is a whole disk, in which case we strip off the 4257 * trailing 's0' slice name. 4258 * 4259 * This routine is also responsible for identifying when disks have been 4260 * reconfigured in a new location. The kernel will have opened the device by 4261 * devid, but the path will still refer to the old location. To catch this, we 4262 * first do a path -> devid translation (which is fast for the common case). If 4263 * the devid matches, we're done. If not, we do a reverse devid -> path 4264 * translation and issue the appropriate ioctl() to update the path of the vdev. 4265 * If 'zhp' is NULL, then this is an exported pool, and we don't need to do any 4266 * of these checks. 4267 */ 4268 char * 4269 zpool_vdev_name(libzfs_handle_t *hdl, zpool_handle_t *zhp, nvlist_t *nv, 4270 int name_flags) 4271 { 4272 const char *type, *tpath; 4273 const char *path; 4274 uint64_t value; 4275 char buf[PATH_BUF_LEN]; 4276 char tmpbuf[PATH_BUF_LEN * 2]; 4277 4278 /* 4279 * vdev_name will be "root"/"root-0" for the root vdev, but it is the 4280 * zpool name that will be displayed to the user. 4281 */ 4282 type = fnvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE); 4283 if (zhp != NULL && strcmp(type, "root") == 0) 4284 return (zfs_strdup(hdl, zpool_get_name(zhp))); 4285 4286 if (libzfs_envvar_is_set("ZPOOL_VDEV_NAME_PATH")) 4287 name_flags |= VDEV_NAME_PATH; 4288 if (libzfs_envvar_is_set("ZPOOL_VDEV_NAME_GUID")) 4289 name_flags |= VDEV_NAME_GUID; 4290 if (libzfs_envvar_is_set("ZPOOL_VDEV_NAME_FOLLOW_LINKS")) 4291 name_flags |= VDEV_NAME_FOLLOW_LINKS; 4292 4293 if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT, &value) == 0 || 4294 name_flags & VDEV_NAME_GUID) { 4295 (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &value); 4296 (void) snprintf(buf, sizeof (buf), "%llu", (u_longlong_t)value); 4297 path = buf; 4298 } else if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &tpath) == 0) { 4299 path = tpath; 4300 4301 if (name_flags & VDEV_NAME_FOLLOW_LINKS) { 4302 char *rp = realpath(path, NULL); 4303 if (rp) { 4304 strlcpy(buf, rp, sizeof (buf)); 4305 path = buf; 4306 free(rp); 4307 } 4308 } 4309 4310 /* 4311 * For a block device only use the name. 4312 */ 4313 if ((strcmp(type, VDEV_TYPE_DISK) == 0) && 4314 !(name_flags & VDEV_NAME_PATH)) { 4315 path = zfs_strip_path(path); 4316 } 4317 4318 /* 4319 * Remove the partition from the path if this is a whole disk. 4320 */ 4321 if (strcmp(type, VDEV_TYPE_DRAID_SPARE) != 0 && 4322 nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, &value) 4323 == 0 && value && !(name_flags & VDEV_NAME_PATH)) { 4324 return (zfs_strip_partition(path)); 4325 } 4326 } else { 4327 path = type; 4328 4329 /* 4330 * If it's a raidz device, we need to stick in the parity level. 4331 */ 4332 if (strcmp(path, VDEV_TYPE_RAIDZ) == 0) { 4333 value = fnvlist_lookup_uint64(nv, ZPOOL_CONFIG_NPARITY); 4334 (void) snprintf(buf, sizeof (buf), "%s%llu", path, 4335 (u_longlong_t)value); 4336 path = buf; 4337 } 4338 4339 /* 4340 * If it's a dRAID device, we add parity, groups, and spares. 4341 */ 4342 if (strcmp(path, VDEV_TYPE_DRAID) == 0) { 4343 uint64_t ndata, nparity, nspares; 4344 nvlist_t **child; 4345 uint_t children; 4346 4347 verify(nvlist_lookup_nvlist_array(nv, 4348 ZPOOL_CONFIG_CHILDREN, &child, &children) == 0); 4349 nparity = fnvlist_lookup_uint64(nv, 4350 ZPOOL_CONFIG_NPARITY); 4351 ndata = fnvlist_lookup_uint64(nv, 4352 ZPOOL_CONFIG_DRAID_NDATA); 4353 nspares = fnvlist_lookup_uint64(nv, 4354 ZPOOL_CONFIG_DRAID_NSPARES); 4355 4356 path = zpool_draid_name(buf, sizeof (buf), ndata, 4357 nparity, nspares, children); 4358 } 4359 4360 /* 4361 * We identify each top-level vdev by using a <type-id> 4362 * naming convention. 4363 */ 4364 if (name_flags & VDEV_NAME_TYPE_ID) { 4365 uint64_t id = fnvlist_lookup_uint64(nv, 4366 ZPOOL_CONFIG_ID); 4367 (void) snprintf(tmpbuf, sizeof (tmpbuf), "%s-%llu", 4368 path, (u_longlong_t)id); 4369 path = tmpbuf; 4370 } 4371 } 4372 4373 return (zfs_strdup(hdl, path)); 4374 } 4375 4376 static int 4377 zbookmark_mem_compare(const void *a, const void *b) 4378 { 4379 return (memcmp(a, b, sizeof (zbookmark_phys_t))); 4380 } 4381 4382 /* 4383 * Retrieve the persistent error log, uniquify the members, and return to the 4384 * caller. 4385 */ 4386 int 4387 zpool_get_errlog(zpool_handle_t *zhp, nvlist_t **nverrlistp) 4388 { 4389 zfs_cmd_t zc = {"\0"}; 4390 libzfs_handle_t *hdl = zhp->zpool_hdl; 4391 zbookmark_phys_t *buf; 4392 uint64_t buflen = 10000; /* approx. 1MB of RAM */ 4393 4394 if (fnvlist_lookup_uint64(zhp->zpool_config, 4395 ZPOOL_CONFIG_ERRCOUNT) == 0) 4396 return (0); 4397 4398 /* 4399 * Retrieve the raw error list from the kernel. If it doesn't fit, 4400 * allocate a larger buffer and retry. 4401 */ 4402 (void) strcpy(zc.zc_name, zhp->zpool_name); 4403 for (;;) { 4404 buf = zfs_alloc(zhp->zpool_hdl, 4405 buflen * sizeof (zbookmark_phys_t)); 4406 zc.zc_nvlist_dst = (uintptr_t)buf; 4407 zc.zc_nvlist_dst_size = buflen; 4408 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_ERROR_LOG, 4409 &zc) != 0) { 4410 free(buf); 4411 if (errno == ENOMEM) { 4412 buflen *= 2; 4413 } else { 4414 return (zpool_standard_error_fmt(hdl, errno, 4415 dgettext(TEXT_DOMAIN, "errors: List of " 4416 "errors unavailable"))); 4417 } 4418 } else { 4419 break; 4420 } 4421 } 4422 4423 /* 4424 * Sort the resulting bookmarks. This is a little confusing due to the 4425 * implementation of ZFS_IOC_ERROR_LOG. The bookmarks are copied last 4426 * to first, and 'zc_nvlist_dst_size' indicates the number of bookmarks 4427 * _not_ copied as part of the process. So we point the start of our 4428 * array appropriate and decrement the total number of elements. 4429 */ 4430 zbookmark_phys_t *zb = buf + zc.zc_nvlist_dst_size; 4431 uint64_t zblen = buflen - zc.zc_nvlist_dst_size; 4432 4433 qsort(zb, zblen, sizeof (zbookmark_phys_t), zbookmark_mem_compare); 4434 4435 verify(nvlist_alloc(nverrlistp, 0, KM_SLEEP) == 0); 4436 4437 /* 4438 * Fill in the nverrlistp with nvlist's of dataset and object numbers. 4439 */ 4440 for (uint64_t i = 0; i < zblen; i++) { 4441 nvlist_t *nv; 4442 4443 /* ignoring zb_blkid and zb_level for now */ 4444 if (i > 0 && zb[i-1].zb_objset == zb[i].zb_objset && 4445 zb[i-1].zb_object == zb[i].zb_object) 4446 continue; 4447 4448 if (nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) != 0) 4449 goto nomem; 4450 if (nvlist_add_uint64(nv, ZPOOL_ERR_DATASET, 4451 zb[i].zb_objset) != 0) { 4452 nvlist_free(nv); 4453 goto nomem; 4454 } 4455 if (nvlist_add_uint64(nv, ZPOOL_ERR_OBJECT, 4456 zb[i].zb_object) != 0) { 4457 nvlist_free(nv); 4458 goto nomem; 4459 } 4460 if (nvlist_add_nvlist(*nverrlistp, "ejk", nv) != 0) { 4461 nvlist_free(nv); 4462 goto nomem; 4463 } 4464 nvlist_free(nv); 4465 } 4466 4467 free(buf); 4468 return (0); 4469 4470 nomem: 4471 free(buf); 4472 return (no_memory(zhp->zpool_hdl)); 4473 } 4474 4475 /* 4476 * Upgrade a ZFS pool to the latest on-disk version. 4477 */ 4478 int 4479 zpool_upgrade(zpool_handle_t *zhp, uint64_t new_version) 4480 { 4481 zfs_cmd_t zc = {"\0"}; 4482 libzfs_handle_t *hdl = zhp->zpool_hdl; 4483 4484 (void) strcpy(zc.zc_name, zhp->zpool_name); 4485 zc.zc_cookie = new_version; 4486 4487 if (zfs_ioctl(hdl, ZFS_IOC_POOL_UPGRADE, &zc) != 0) 4488 return (zpool_standard_error_fmt(hdl, errno, 4489 dgettext(TEXT_DOMAIN, "cannot upgrade '%s'"), 4490 zhp->zpool_name)); 4491 return (0); 4492 } 4493 4494 void 4495 zfs_save_arguments(int argc, char **argv, char *string, int len) 4496 { 4497 int i; 4498 4499 (void) strlcpy(string, zfs_basename(argv[0]), len); 4500 for (i = 1; i < argc; i++) { 4501 (void) strlcat(string, " ", len); 4502 (void) strlcat(string, argv[i], len); 4503 } 4504 } 4505 4506 int 4507 zpool_log_history(libzfs_handle_t *hdl, const char *message) 4508 { 4509 zfs_cmd_t zc = {"\0"}; 4510 nvlist_t *args; 4511 4512 args = fnvlist_alloc(); 4513 fnvlist_add_string(args, "message", message); 4514 zcmd_write_src_nvlist(hdl, &zc, args); 4515 int err = zfs_ioctl(hdl, ZFS_IOC_LOG_HISTORY, &zc); 4516 nvlist_free(args); 4517 zcmd_free_nvlists(&zc); 4518 return (err); 4519 } 4520 4521 /* 4522 * Perform ioctl to get some command history of a pool. 4523 * 4524 * 'buf' is the buffer to fill up to 'len' bytes. 'off' is the 4525 * logical offset of the history buffer to start reading from. 4526 * 4527 * Upon return, 'off' is the next logical offset to read from and 4528 * 'len' is the actual amount of bytes read into 'buf'. 4529 */ 4530 static int 4531 get_history(zpool_handle_t *zhp, char *buf, uint64_t *off, uint64_t *len) 4532 { 4533 zfs_cmd_t zc = {"\0"}; 4534 libzfs_handle_t *hdl = zhp->zpool_hdl; 4535 4536 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4537 4538 zc.zc_history = (uint64_t)(uintptr_t)buf; 4539 zc.zc_history_len = *len; 4540 zc.zc_history_offset = *off; 4541 4542 if (zfs_ioctl(hdl, ZFS_IOC_POOL_GET_HISTORY, &zc) != 0) { 4543 switch (errno) { 4544 case EPERM: 4545 return (zfs_error_fmt(hdl, EZFS_PERM, 4546 dgettext(TEXT_DOMAIN, 4547 "cannot show history for pool '%s'"), 4548 zhp->zpool_name)); 4549 case ENOENT: 4550 return (zfs_error_fmt(hdl, EZFS_NOHISTORY, 4551 dgettext(TEXT_DOMAIN, "cannot get history for pool " 4552 "'%s'"), zhp->zpool_name)); 4553 case ENOTSUP: 4554 return (zfs_error_fmt(hdl, EZFS_BADVERSION, 4555 dgettext(TEXT_DOMAIN, "cannot get history for pool " 4556 "'%s', pool must be upgraded"), zhp->zpool_name)); 4557 default: 4558 return (zpool_standard_error_fmt(hdl, errno, 4559 dgettext(TEXT_DOMAIN, 4560 "cannot get history for '%s'"), zhp->zpool_name)); 4561 } 4562 } 4563 4564 *len = zc.zc_history_len; 4565 *off = zc.zc_history_offset; 4566 4567 return (0); 4568 } 4569 4570 /* 4571 * Retrieve the command history of a pool. 4572 */ 4573 int 4574 zpool_get_history(zpool_handle_t *zhp, nvlist_t **nvhisp, uint64_t *off, 4575 boolean_t *eof) 4576 { 4577 libzfs_handle_t *hdl = zhp->zpool_hdl; 4578 char *buf; 4579 int buflen = 128 * 1024; 4580 nvlist_t **records = NULL; 4581 uint_t numrecords = 0; 4582 int err = 0, i; 4583 uint64_t start = *off; 4584 4585 buf = zfs_alloc(hdl, buflen); 4586 4587 /* process about 1MiB a time */ 4588 while (*off - start < 1024 * 1024) { 4589 uint64_t bytes_read = buflen; 4590 uint64_t leftover; 4591 4592 if ((err = get_history(zhp, buf, off, &bytes_read)) != 0) 4593 break; 4594 4595 /* if nothing else was read in, we're at EOF, just return */ 4596 if (!bytes_read) { 4597 *eof = B_TRUE; 4598 break; 4599 } 4600 4601 if ((err = zpool_history_unpack(buf, bytes_read, 4602 &leftover, &records, &numrecords)) != 0) { 4603 zpool_standard_error_fmt(hdl, err, 4604 dgettext(TEXT_DOMAIN, 4605 "cannot get history for '%s'"), zhp->zpool_name); 4606 break; 4607 } 4608 *off -= leftover; 4609 if (leftover == bytes_read) { 4610 /* 4611 * no progress made, because buffer is not big enough 4612 * to hold this record; resize and retry. 4613 */ 4614 buflen *= 2; 4615 free(buf); 4616 buf = zfs_alloc(hdl, buflen); 4617 } 4618 } 4619 4620 free(buf); 4621 4622 if (!err) { 4623 *nvhisp = fnvlist_alloc(); 4624 fnvlist_add_nvlist_array(*nvhisp, ZPOOL_HIST_RECORD, 4625 (const nvlist_t **)records, numrecords); 4626 } 4627 for (i = 0; i < numrecords; i++) 4628 nvlist_free(records[i]); 4629 free(records); 4630 4631 return (err); 4632 } 4633 4634 /* 4635 * Retrieve the next event given the passed 'zevent_fd' file descriptor. 4636 * If there is a new event available 'nvp' will contain a newly allocated 4637 * nvlist and 'dropped' will be set to the number of missed events since 4638 * the last call to this function. When 'nvp' is set to NULL it indicates 4639 * no new events are available. In either case the function returns 0 and 4640 * it is up to the caller to free 'nvp'. In the case of a fatal error the 4641 * function will return a non-zero value. When the function is called in 4642 * blocking mode (the default, unless the ZEVENT_NONBLOCK flag is passed), 4643 * it will not return until a new event is available. 4644 */ 4645 int 4646 zpool_events_next(libzfs_handle_t *hdl, nvlist_t **nvp, 4647 int *dropped, unsigned flags, int zevent_fd) 4648 { 4649 zfs_cmd_t zc = {"\0"}; 4650 int error = 0; 4651 4652 *nvp = NULL; 4653 *dropped = 0; 4654 zc.zc_cleanup_fd = zevent_fd; 4655 4656 if (flags & ZEVENT_NONBLOCK) 4657 zc.zc_guid = ZEVENT_NONBLOCK; 4658 4659 zcmd_alloc_dst_nvlist(hdl, &zc, ZEVENT_SIZE); 4660 4661 retry: 4662 if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_NEXT, &zc) != 0) { 4663 switch (errno) { 4664 case ESHUTDOWN: 4665 error = zfs_error_fmt(hdl, EZFS_POOLUNAVAIL, 4666 dgettext(TEXT_DOMAIN, "zfs shutdown")); 4667 goto out; 4668 case ENOENT: 4669 /* Blocking error case should not occur */ 4670 if (!(flags & ZEVENT_NONBLOCK)) 4671 error = zpool_standard_error_fmt(hdl, errno, 4672 dgettext(TEXT_DOMAIN, "cannot get event")); 4673 4674 goto out; 4675 case ENOMEM: 4676 zcmd_expand_dst_nvlist(hdl, &zc); 4677 goto retry; 4678 default: 4679 error = zpool_standard_error_fmt(hdl, errno, 4680 dgettext(TEXT_DOMAIN, "cannot get event")); 4681 goto out; 4682 } 4683 } 4684 4685 error = zcmd_read_dst_nvlist(hdl, &zc, nvp); 4686 if (error != 0) 4687 goto out; 4688 4689 *dropped = (int)zc.zc_cookie; 4690 out: 4691 zcmd_free_nvlists(&zc); 4692 4693 return (error); 4694 } 4695 4696 /* 4697 * Clear all events. 4698 */ 4699 int 4700 zpool_events_clear(libzfs_handle_t *hdl, int *count) 4701 { 4702 zfs_cmd_t zc = {"\0"}; 4703 4704 if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_CLEAR, &zc) != 0) 4705 return (zpool_standard_error(hdl, errno, 4706 dgettext(TEXT_DOMAIN, "cannot clear events"))); 4707 4708 if (count != NULL) 4709 *count = (int)zc.zc_cookie; /* # of events cleared */ 4710 4711 return (0); 4712 } 4713 4714 /* 4715 * Seek to a specific EID, ZEVENT_SEEK_START, or ZEVENT_SEEK_END for 4716 * the passed zevent_fd file handle. On success zero is returned, 4717 * otherwise -1 is returned and hdl->libzfs_error is set to the errno. 4718 */ 4719 int 4720 zpool_events_seek(libzfs_handle_t *hdl, uint64_t eid, int zevent_fd) 4721 { 4722 zfs_cmd_t zc = {"\0"}; 4723 int error = 0; 4724 4725 zc.zc_guid = eid; 4726 zc.zc_cleanup_fd = zevent_fd; 4727 4728 if (zfs_ioctl(hdl, ZFS_IOC_EVENTS_SEEK, &zc) != 0) { 4729 switch (errno) { 4730 case ENOENT: 4731 error = zfs_error_fmt(hdl, EZFS_NOENT, 4732 dgettext(TEXT_DOMAIN, "cannot get event")); 4733 break; 4734 4735 case ENOMEM: 4736 error = zfs_error_fmt(hdl, EZFS_NOMEM, 4737 dgettext(TEXT_DOMAIN, "cannot get event")); 4738 break; 4739 4740 default: 4741 error = zpool_standard_error_fmt(hdl, errno, 4742 dgettext(TEXT_DOMAIN, "cannot get event")); 4743 break; 4744 } 4745 } 4746 4747 return (error); 4748 } 4749 4750 static void 4751 zpool_obj_to_path_impl(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj, 4752 char *pathname, size_t len, boolean_t always_unmounted) 4753 { 4754 zfs_cmd_t zc = {"\0"}; 4755 boolean_t mounted = B_FALSE; 4756 char *mntpnt = NULL; 4757 char dsname[ZFS_MAX_DATASET_NAME_LEN]; 4758 4759 if (dsobj == 0) { 4760 /* special case for the MOS */ 4761 (void) snprintf(pathname, len, "<metadata>:<0x%llx>", 4762 (longlong_t)obj); 4763 return; 4764 } 4765 4766 /* get the dataset's name */ 4767 (void) strlcpy(zc.zc_name, zhp->zpool_name, sizeof (zc.zc_name)); 4768 zc.zc_obj = dsobj; 4769 if (zfs_ioctl(zhp->zpool_hdl, 4770 ZFS_IOC_DSOBJ_TO_DSNAME, &zc) != 0) { 4771 /* just write out a path of two object numbers */ 4772 (void) snprintf(pathname, len, "<0x%llx>:<0x%llx>", 4773 (longlong_t)dsobj, (longlong_t)obj); 4774 return; 4775 } 4776 (void) strlcpy(dsname, zc.zc_value, sizeof (dsname)); 4777 4778 /* find out if the dataset is mounted */ 4779 mounted = !always_unmounted && is_mounted(zhp->zpool_hdl, dsname, 4780 &mntpnt); 4781 4782 /* get the corrupted object's path */ 4783 (void) strlcpy(zc.zc_name, dsname, sizeof (zc.zc_name)); 4784 zc.zc_obj = obj; 4785 if (zfs_ioctl(zhp->zpool_hdl, ZFS_IOC_OBJ_TO_PATH, 4786 &zc) == 0) { 4787 if (mounted) { 4788 (void) snprintf(pathname, len, "%s%s", mntpnt, 4789 zc.zc_value); 4790 } else { 4791 (void) snprintf(pathname, len, "%s:%s", 4792 dsname, zc.zc_value); 4793 } 4794 } else { 4795 (void) snprintf(pathname, len, "%s:<0x%llx>", dsname, 4796 (longlong_t)obj); 4797 } 4798 free(mntpnt); 4799 } 4800 4801 void 4802 zpool_obj_to_path(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj, 4803 char *pathname, size_t len) 4804 { 4805 zpool_obj_to_path_impl(zhp, dsobj, obj, pathname, len, B_FALSE); 4806 } 4807 4808 void 4809 zpool_obj_to_path_ds(zpool_handle_t *zhp, uint64_t dsobj, uint64_t obj, 4810 char *pathname, size_t len) 4811 { 4812 zpool_obj_to_path_impl(zhp, dsobj, obj, pathname, len, B_TRUE); 4813 } 4814 /* 4815 * Wait while the specified activity is in progress in the pool. 4816 */ 4817 int 4818 zpool_wait(zpool_handle_t *zhp, zpool_wait_activity_t activity) 4819 { 4820 boolean_t missing; 4821 4822 int error = zpool_wait_status(zhp, activity, &missing, NULL); 4823 4824 if (missing) { 4825 (void) zpool_standard_error_fmt(zhp->zpool_hdl, ENOENT, 4826 dgettext(TEXT_DOMAIN, "error waiting in pool '%s'"), 4827 zhp->zpool_name); 4828 return (ENOENT); 4829 } else { 4830 return (error); 4831 } 4832 } 4833 4834 /* 4835 * Wait for the given activity and return the status of the wait (whether or not 4836 * any waiting was done) in the 'waited' parameter. Non-existent pools are 4837 * reported via the 'missing' parameter, rather than by printing an error 4838 * message. This is convenient when this function is called in a loop over a 4839 * long period of time (as it is, for example, by zpool's wait cmd). In that 4840 * scenario, a pool being exported or destroyed should be considered a normal 4841 * event, so we don't want to print an error when we find that the pool doesn't 4842 * exist. 4843 */ 4844 int 4845 zpool_wait_status(zpool_handle_t *zhp, zpool_wait_activity_t activity, 4846 boolean_t *missing, boolean_t *waited) 4847 { 4848 int error = lzc_wait(zhp->zpool_name, activity, waited); 4849 *missing = (error == ENOENT); 4850 if (*missing) 4851 return (0); 4852 4853 if (error != 0) { 4854 (void) zpool_standard_error_fmt(zhp->zpool_hdl, error, 4855 dgettext(TEXT_DOMAIN, "error waiting in pool '%s'"), 4856 zhp->zpool_name); 4857 } 4858 4859 return (error); 4860 } 4861 4862 int 4863 zpool_set_bootenv(zpool_handle_t *zhp, const nvlist_t *envmap) 4864 { 4865 int error = lzc_set_bootenv(zhp->zpool_name, envmap); 4866 if (error != 0) { 4867 (void) zpool_standard_error_fmt(zhp->zpool_hdl, error, 4868 dgettext(TEXT_DOMAIN, 4869 "error setting bootenv in pool '%s'"), zhp->zpool_name); 4870 } 4871 4872 return (error); 4873 } 4874 4875 int 4876 zpool_get_bootenv(zpool_handle_t *zhp, nvlist_t **nvlp) 4877 { 4878 nvlist_t *nvl; 4879 int error; 4880 4881 nvl = NULL; 4882 error = lzc_get_bootenv(zhp->zpool_name, &nvl); 4883 if (error != 0) { 4884 (void) zpool_standard_error_fmt(zhp->zpool_hdl, error, 4885 dgettext(TEXT_DOMAIN, 4886 "error getting bootenv in pool '%s'"), zhp->zpool_name); 4887 } else { 4888 *nvlp = nvl; 4889 } 4890 4891 return (error); 4892 } 4893 4894 /* 4895 * Attempt to read and parse feature file(s) (from "compatibility" property). 4896 * Files contain zpool feature names, comma or whitespace-separated. 4897 * Comments (# character to next newline) are discarded. 4898 * 4899 * Arguments: 4900 * compatibility : string containing feature filenames 4901 * features : either NULL or pointer to array of boolean 4902 * report : either NULL or pointer to string buffer 4903 * rlen : length of "report" buffer 4904 * 4905 * compatibility is NULL (unset), "", "off", "legacy", or list of 4906 * comma-separated filenames. filenames should either be absolute, 4907 * or relative to: 4908 * 1) ZPOOL_SYSCONF_COMPAT_D (eg: /etc/zfs/compatibility.d) or 4909 * 2) ZPOOL_DATA_COMPAT_D (eg: /usr/share/zfs/compatibility.d). 4910 * (Unset), "" or "off" => enable all features 4911 * "legacy" => disable all features 4912 * 4913 * Any feature names read from files which match unames in spa_feature_table 4914 * will have the corresponding boolean set in the features array (if non-NULL). 4915 * If more than one feature set specified, only features present in *all* of 4916 * them will be set. 4917 * 4918 * "report" if not NULL will be populated with a suitable status message. 4919 * 4920 * Return values: 4921 * ZPOOL_COMPATIBILITY_OK : files read and parsed ok 4922 * ZPOOL_COMPATIBILITY_BADFILE : file too big or not a text file 4923 * ZPOOL_COMPATIBILITY_BADTOKEN : SYSCONF file contains invalid feature name 4924 * ZPOOL_COMPATIBILITY_WARNTOKEN : DATA file contains invalid feature name 4925 * ZPOOL_COMPATIBILITY_NOFILES : no feature files found 4926 */ 4927 zpool_compat_status_t 4928 zpool_load_compat(const char *compat, boolean_t *features, char *report, 4929 size_t rlen) 4930 { 4931 int sdirfd, ddirfd, featfd; 4932 struct stat fs; 4933 char *fc; 4934 char *ps, *ls, *ws; 4935 char *file, *line, *word; 4936 4937 char l_compat[ZFS_MAXPROPLEN]; 4938 4939 boolean_t ret_nofiles = B_TRUE; 4940 boolean_t ret_badfile = B_FALSE; 4941 boolean_t ret_badtoken = B_FALSE; 4942 boolean_t ret_warntoken = B_FALSE; 4943 4944 /* special cases (unset), "" and "off" => enable all features */ 4945 if (compat == NULL || compat[0] == '\0' || 4946 strcmp(compat, ZPOOL_COMPAT_OFF) == 0) { 4947 if (features != NULL) 4948 for (uint_t i = 0; i < SPA_FEATURES; i++) 4949 features[i] = B_TRUE; 4950 if (report != NULL) 4951 strlcpy(report, gettext("all features enabled"), rlen); 4952 return (ZPOOL_COMPATIBILITY_OK); 4953 } 4954 4955 /* Final special case "legacy" => disable all features */ 4956 if (strcmp(compat, ZPOOL_COMPAT_LEGACY) == 0) { 4957 if (features != NULL) 4958 for (uint_t i = 0; i < SPA_FEATURES; i++) 4959 features[i] = B_FALSE; 4960 if (report != NULL) 4961 strlcpy(report, gettext("all features disabled"), rlen); 4962 return (ZPOOL_COMPATIBILITY_OK); 4963 } 4964 4965 /* 4966 * Start with all true; will be ANDed with results from each file 4967 */ 4968 if (features != NULL) 4969 for (uint_t i = 0; i < SPA_FEATURES; i++) 4970 features[i] = B_TRUE; 4971 4972 char err_badfile[ZFS_MAXPROPLEN] = ""; 4973 char err_badtoken[ZFS_MAXPROPLEN] = ""; 4974 4975 /* 4976 * We ignore errors from the directory open() 4977 * as they're only needed if the filename is relative 4978 * which will be checked during the openat(). 4979 */ 4980 4981 /* O_PATH safer than O_RDONLY if system allows it */ 4982 #if defined(O_PATH) 4983 #define ZC_DIR_FLAGS (O_DIRECTORY | O_CLOEXEC | O_PATH) 4984 #else 4985 #define ZC_DIR_FLAGS (O_DIRECTORY | O_CLOEXEC | O_RDONLY) 4986 #endif 4987 4988 sdirfd = open(ZPOOL_SYSCONF_COMPAT_D, ZC_DIR_FLAGS); 4989 ddirfd = open(ZPOOL_DATA_COMPAT_D, ZC_DIR_FLAGS); 4990 4991 (void) strlcpy(l_compat, compat, ZFS_MAXPROPLEN); 4992 4993 for (file = strtok_r(l_compat, ",", &ps); 4994 file != NULL; 4995 file = strtok_r(NULL, ",", &ps)) { 4996 4997 boolean_t l_features[SPA_FEATURES]; 4998 4999 enum { Z_SYSCONF, Z_DATA } source; 5000 5001 /* try sysconfdir first, then datadir */ 5002 source = Z_SYSCONF; 5003 if ((featfd = openat(sdirfd, file, O_RDONLY | O_CLOEXEC)) < 0) { 5004 featfd = openat(ddirfd, file, O_RDONLY | O_CLOEXEC); 5005 source = Z_DATA; 5006 } 5007 5008 /* File readable and correct size? */ 5009 if (featfd < 0 || 5010 fstat(featfd, &fs) < 0 || 5011 fs.st_size < 1 || 5012 fs.st_size > ZPOOL_COMPAT_MAXSIZE) { 5013 (void) close(featfd); 5014 strlcat(err_badfile, file, ZFS_MAXPROPLEN); 5015 strlcat(err_badfile, " ", ZFS_MAXPROPLEN); 5016 ret_badfile = B_TRUE; 5017 continue; 5018 } 5019 5020 /* Prefault the file if system allows */ 5021 #if defined(MAP_POPULATE) 5022 #define ZC_MMAP_FLAGS (MAP_PRIVATE | MAP_POPULATE) 5023 #elif defined(MAP_PREFAULT_READ) 5024 #define ZC_MMAP_FLAGS (MAP_PRIVATE | MAP_PREFAULT_READ) 5025 #else 5026 #define ZC_MMAP_FLAGS (MAP_PRIVATE) 5027 #endif 5028 5029 /* private mmap() so we can strtok safely */ 5030 fc = (char *)mmap(NULL, fs.st_size, PROT_READ | PROT_WRITE, 5031 ZC_MMAP_FLAGS, featfd, 0); 5032 (void) close(featfd); 5033 5034 /* map ok, and last character == newline? */ 5035 if (fc == MAP_FAILED || fc[fs.st_size - 1] != '\n') { 5036 (void) munmap((void *) fc, fs.st_size); 5037 strlcat(err_badfile, file, ZFS_MAXPROPLEN); 5038 strlcat(err_badfile, " ", ZFS_MAXPROPLEN); 5039 ret_badfile = B_TRUE; 5040 continue; 5041 } 5042 5043 ret_nofiles = B_FALSE; 5044 5045 for (uint_t i = 0; i < SPA_FEATURES; i++) 5046 l_features[i] = B_FALSE; 5047 5048 /* replace final newline with NULL to ensure string ends */ 5049 fc[fs.st_size - 1] = '\0'; 5050 5051 for (line = strtok_r(fc, "\n", &ls); 5052 line != NULL; 5053 line = strtok_r(NULL, "\n", &ls)) { 5054 /* discard comments */ 5055 char *r = strchr(line, '#'); 5056 if (r != NULL) 5057 *r = '\0'; 5058 5059 for (word = strtok_r(line, ", \t", &ws); 5060 word != NULL; 5061 word = strtok_r(NULL, ", \t", &ws)) { 5062 /* Find matching feature name */ 5063 uint_t f; 5064 for (f = 0; f < SPA_FEATURES; f++) { 5065 zfeature_info_t *fi = 5066 &spa_feature_table[f]; 5067 if (strcmp(word, fi->fi_uname) == 0) { 5068 l_features[f] = B_TRUE; 5069 break; 5070 } 5071 } 5072 if (f < SPA_FEATURES) 5073 continue; 5074 5075 /* found an unrecognized word */ 5076 /* lightly sanitize it */ 5077 if (strlen(word) > 32) 5078 word[32] = '\0'; 5079 for (char *c = word; *c != '\0'; c++) 5080 if (!isprint(*c)) 5081 *c = '?'; 5082 5083 strlcat(err_badtoken, word, ZFS_MAXPROPLEN); 5084 strlcat(err_badtoken, " ", ZFS_MAXPROPLEN); 5085 if (source == Z_SYSCONF) 5086 ret_badtoken = B_TRUE; 5087 else 5088 ret_warntoken = B_TRUE; 5089 } 5090 } 5091 (void) munmap((void *) fc, fs.st_size); 5092 5093 if (features != NULL) 5094 for (uint_t i = 0; i < SPA_FEATURES; i++) 5095 features[i] &= l_features[i]; 5096 } 5097 (void) close(sdirfd); 5098 (void) close(ddirfd); 5099 5100 /* Return the most serious error */ 5101 if (ret_badfile) { 5102 if (report != NULL) 5103 snprintf(report, rlen, gettext("could not read/" 5104 "parse feature file(s): %s"), err_badfile); 5105 return (ZPOOL_COMPATIBILITY_BADFILE); 5106 } 5107 if (ret_nofiles) { 5108 if (report != NULL) 5109 strlcpy(report, 5110 gettext("no valid compatibility files specified"), 5111 rlen); 5112 return (ZPOOL_COMPATIBILITY_NOFILES); 5113 } 5114 if (ret_badtoken) { 5115 if (report != NULL) 5116 snprintf(report, rlen, gettext("invalid feature " 5117 "name(s) in local compatibility files: %s"), 5118 err_badtoken); 5119 return (ZPOOL_COMPATIBILITY_BADTOKEN); 5120 } 5121 if (ret_warntoken) { 5122 if (report != NULL) 5123 snprintf(report, rlen, gettext("unrecognized feature " 5124 "name(s) in distribution compatibility files: %s"), 5125 err_badtoken); 5126 return (ZPOOL_COMPATIBILITY_WARNTOKEN); 5127 } 5128 if (report != NULL) 5129 strlcpy(report, gettext("compatibility set ok"), rlen); 5130 return (ZPOOL_COMPATIBILITY_OK); 5131 } 5132 5133 static int 5134 zpool_vdev_guid(zpool_handle_t *zhp, const char *vdevname, uint64_t *vdev_guid) 5135 { 5136 nvlist_t *tgt; 5137 boolean_t avail_spare, l2cache; 5138 5139 verify(zhp != NULL); 5140 if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) { 5141 char errbuf[ERRBUFLEN]; 5142 (void) snprintf(errbuf, sizeof (errbuf), 5143 dgettext(TEXT_DOMAIN, "pool is in an unavailable state")); 5144 return (zfs_error(zhp->zpool_hdl, EZFS_POOLUNAVAIL, errbuf)); 5145 } 5146 5147 if ((tgt = zpool_find_vdev(zhp, vdevname, &avail_spare, &l2cache, 5148 NULL)) == NULL) { 5149 char errbuf[ERRBUFLEN]; 5150 (void) snprintf(errbuf, sizeof (errbuf), 5151 dgettext(TEXT_DOMAIN, "can not find %s in %s"), 5152 vdevname, zhp->zpool_name); 5153 return (zfs_error(zhp->zpool_hdl, EZFS_NODEVICE, errbuf)); 5154 } 5155 5156 *vdev_guid = fnvlist_lookup_uint64(tgt, ZPOOL_CONFIG_GUID); 5157 return (0); 5158 } 5159 5160 /* 5161 * Get a vdev property value for 'prop' and return the value in 5162 * a pre-allocated buffer. 5163 */ 5164 int 5165 zpool_get_vdev_prop_value(nvlist_t *nvprop, vdev_prop_t prop, char *prop_name, 5166 char *buf, size_t len, zprop_source_t *srctype, boolean_t literal) 5167 { 5168 nvlist_t *nv; 5169 const char *strval; 5170 uint64_t intval; 5171 zprop_source_t src = ZPROP_SRC_NONE; 5172 5173 if (prop == VDEV_PROP_USERPROP) { 5174 /* user property, prop_name must contain the property name */ 5175 assert(prop_name != NULL); 5176 if (nvlist_lookup_nvlist(nvprop, prop_name, &nv) == 0) { 5177 src = fnvlist_lookup_uint64(nv, ZPROP_SOURCE); 5178 strval = fnvlist_lookup_string(nv, ZPROP_VALUE); 5179 } else { 5180 /* user prop not found */ 5181 return (-1); 5182 } 5183 (void) strlcpy(buf, strval, len); 5184 if (srctype) 5185 *srctype = src; 5186 return (0); 5187 } 5188 5189 if (prop_name == NULL) 5190 prop_name = (char *)vdev_prop_to_name(prop); 5191 5192 switch (vdev_prop_get_type(prop)) { 5193 case PROP_TYPE_STRING: 5194 if (nvlist_lookup_nvlist(nvprop, prop_name, &nv) == 0) { 5195 src = fnvlist_lookup_uint64(nv, ZPROP_SOURCE); 5196 strval = fnvlist_lookup_string(nv, ZPROP_VALUE); 5197 } else { 5198 src = ZPROP_SRC_DEFAULT; 5199 if ((strval = vdev_prop_default_string(prop)) == NULL) 5200 strval = "-"; 5201 } 5202 (void) strlcpy(buf, strval, len); 5203 break; 5204 5205 case PROP_TYPE_NUMBER: 5206 if (nvlist_lookup_nvlist(nvprop, prop_name, &nv) == 0) { 5207 src = fnvlist_lookup_uint64(nv, ZPROP_SOURCE); 5208 intval = fnvlist_lookup_uint64(nv, ZPROP_VALUE); 5209 } else { 5210 src = ZPROP_SRC_DEFAULT; 5211 intval = vdev_prop_default_numeric(prop); 5212 } 5213 5214 switch (prop) { 5215 case VDEV_PROP_ASIZE: 5216 case VDEV_PROP_PSIZE: 5217 case VDEV_PROP_SIZE: 5218 case VDEV_PROP_BOOTSIZE: 5219 case VDEV_PROP_ALLOCATED: 5220 case VDEV_PROP_FREE: 5221 case VDEV_PROP_READ_ERRORS: 5222 case VDEV_PROP_WRITE_ERRORS: 5223 case VDEV_PROP_CHECKSUM_ERRORS: 5224 case VDEV_PROP_INITIALIZE_ERRORS: 5225 case VDEV_PROP_OPS_NULL: 5226 case VDEV_PROP_OPS_READ: 5227 case VDEV_PROP_OPS_WRITE: 5228 case VDEV_PROP_OPS_FREE: 5229 case VDEV_PROP_OPS_CLAIM: 5230 case VDEV_PROP_OPS_TRIM: 5231 case VDEV_PROP_BYTES_NULL: 5232 case VDEV_PROP_BYTES_READ: 5233 case VDEV_PROP_BYTES_WRITE: 5234 case VDEV_PROP_BYTES_FREE: 5235 case VDEV_PROP_BYTES_CLAIM: 5236 case VDEV_PROP_BYTES_TRIM: 5237 if (literal) { 5238 (void) snprintf(buf, len, "%llu", 5239 (u_longlong_t)intval); 5240 } else { 5241 (void) zfs_nicenum(intval, buf, len); 5242 } 5243 break; 5244 case VDEV_PROP_EXPANDSZ: 5245 if (intval == 0) { 5246 (void) strlcpy(buf, "-", len); 5247 } else if (literal) { 5248 (void) snprintf(buf, len, "%llu", 5249 (u_longlong_t)intval); 5250 } else { 5251 (void) zfs_nicenum(intval, buf, len); 5252 } 5253 break; 5254 case VDEV_PROP_CAPACITY: 5255 if (literal) { 5256 (void) snprintf(buf, len, "%llu", 5257 (u_longlong_t)intval); 5258 } else { 5259 (void) snprintf(buf, len, "%llu%%", 5260 (u_longlong_t)intval); 5261 } 5262 break; 5263 case VDEV_PROP_CHECKSUM_N: 5264 case VDEV_PROP_CHECKSUM_T: 5265 case VDEV_PROP_IO_N: 5266 case VDEV_PROP_IO_T: 5267 case VDEV_PROP_SLOW_IO_N: 5268 case VDEV_PROP_SLOW_IO_T: 5269 if (intval == UINT64_MAX) { 5270 (void) strlcpy(buf, "-", len); 5271 } else { 5272 (void) snprintf(buf, len, "%llu", 5273 (u_longlong_t)intval); 5274 } 5275 break; 5276 case VDEV_PROP_FRAGMENTATION: 5277 if (intval == UINT64_MAX) { 5278 (void) strlcpy(buf, "-", len); 5279 } else { 5280 (void) snprintf(buf, len, "%llu%%", 5281 (u_longlong_t)intval); 5282 } 5283 break; 5284 case VDEV_PROP_STATE: 5285 if (literal) { 5286 (void) snprintf(buf, len, "%llu", 5287 (u_longlong_t)intval); 5288 } else { 5289 (void) strlcpy(buf, zpool_state_to_name(intval, 5290 VDEV_AUX_NONE), len); 5291 } 5292 break; 5293 default: 5294 (void) snprintf(buf, len, "%llu", 5295 (u_longlong_t)intval); 5296 } 5297 break; 5298 5299 case PROP_TYPE_INDEX: 5300 if (nvlist_lookup_nvlist(nvprop, prop_name, &nv) == 0) { 5301 src = fnvlist_lookup_uint64(nv, ZPROP_SOURCE); 5302 intval = fnvlist_lookup_uint64(nv, ZPROP_VALUE); 5303 } else { 5304 src = ZPROP_SRC_DEFAULT; 5305 intval = vdev_prop_default_numeric(prop); 5306 /* Only use if provided by the RAIDZ VDEV above */ 5307 if (prop == VDEV_PROP_RAIDZ_EXPANDING) 5308 return (ENOENT); 5309 } 5310 if (vdev_prop_index_to_string(prop, intval, 5311 (const char **)&strval) != 0) 5312 return (-1); 5313 (void) strlcpy(buf, strval, len); 5314 break; 5315 5316 default: 5317 abort(); 5318 } 5319 5320 if (srctype) 5321 *srctype = src; 5322 5323 return (0); 5324 } 5325 5326 /* 5327 * Get a vdev property value for 'prop_name' and return the value in 5328 * a pre-allocated buffer. 5329 */ 5330 int 5331 zpool_get_vdev_prop(zpool_handle_t *zhp, const char *vdevname, vdev_prop_t prop, 5332 char *prop_name, char *buf, size_t len, zprop_source_t *srctype, 5333 boolean_t literal) 5334 { 5335 nvlist_t *reqnvl, *reqprops; 5336 nvlist_t *retprops = NULL; 5337 uint64_t vdev_guid = 0; 5338 int ret; 5339 5340 if ((ret = zpool_vdev_guid(zhp, vdevname, &vdev_guid)) != 0) 5341 return (ret); 5342 5343 if (nvlist_alloc(&reqnvl, NV_UNIQUE_NAME, 0) != 0) 5344 return (no_memory(zhp->zpool_hdl)); 5345 if (nvlist_alloc(&reqprops, NV_UNIQUE_NAME, 0) != 0) 5346 return (no_memory(zhp->zpool_hdl)); 5347 5348 fnvlist_add_uint64(reqnvl, ZPOOL_VDEV_PROPS_GET_VDEV, vdev_guid); 5349 5350 if (prop != VDEV_PROP_USERPROP) { 5351 /* prop_name overrides prop value */ 5352 if (prop_name != NULL) 5353 prop = vdev_name_to_prop(prop_name); 5354 else 5355 prop_name = (char *)vdev_prop_to_name(prop); 5356 assert(prop < VDEV_NUM_PROPS); 5357 } 5358 5359 assert(prop_name != NULL); 5360 if (nvlist_add_uint64(reqprops, prop_name, prop) != 0) { 5361 nvlist_free(reqnvl); 5362 nvlist_free(reqprops); 5363 return (no_memory(zhp->zpool_hdl)); 5364 } 5365 5366 fnvlist_add_nvlist(reqnvl, ZPOOL_VDEV_PROPS_GET_PROPS, reqprops); 5367 5368 ret = lzc_get_vdev_prop(zhp->zpool_name, reqnvl, &retprops); 5369 5370 if (ret == 0) { 5371 ret = zpool_get_vdev_prop_value(retprops, prop, prop_name, buf, 5372 len, srctype, literal); 5373 } else { 5374 char errbuf[ERRBUFLEN]; 5375 (void) snprintf(errbuf, sizeof (errbuf), 5376 dgettext(TEXT_DOMAIN, "cannot get vdev property %s from" 5377 " %s in %s"), prop_name, vdevname, zhp->zpool_name); 5378 (void) zpool_standard_error(zhp->zpool_hdl, ret, errbuf); 5379 } 5380 5381 nvlist_free(reqnvl); 5382 nvlist_free(reqprops); 5383 nvlist_free(retprops); 5384 5385 return (ret); 5386 } 5387 5388 /* 5389 * Get all vdev properties 5390 */ 5391 int 5392 zpool_get_all_vdev_props(zpool_handle_t *zhp, const char *vdevname, 5393 nvlist_t **outnvl) 5394 { 5395 nvlist_t *nvl = NULL; 5396 uint64_t vdev_guid = 0; 5397 int ret; 5398 5399 if ((ret = zpool_vdev_guid(zhp, vdevname, &vdev_guid)) != 0) 5400 return (ret); 5401 5402 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5403 return (no_memory(zhp->zpool_hdl)); 5404 5405 fnvlist_add_uint64(nvl, ZPOOL_VDEV_PROPS_GET_VDEV, vdev_guid); 5406 5407 ret = lzc_get_vdev_prop(zhp->zpool_name, nvl, outnvl); 5408 5409 nvlist_free(nvl); 5410 5411 if (ret) { 5412 char errbuf[ERRBUFLEN]; 5413 (void) snprintf(errbuf, sizeof (errbuf), 5414 dgettext(TEXT_DOMAIN, "cannot get vdev properties for" 5415 " %s in %s"), vdevname, zhp->zpool_name); 5416 (void) zpool_standard_error(zhp->zpool_hdl, errno, errbuf); 5417 } 5418 5419 return (ret); 5420 } 5421 5422 /* 5423 * Set vdev property 5424 */ 5425 int 5426 zpool_set_vdev_prop(zpool_handle_t *zhp, const char *vdevname, 5427 const char *propname, const char *propval) 5428 { 5429 int ret; 5430 nvlist_t *nvl = NULL; 5431 nvlist_t *outnvl = NULL; 5432 nvlist_t *props; 5433 nvlist_t *realprops; 5434 prop_flags_t flags = { 0 }; 5435 uint64_t version; 5436 uint64_t vdev_guid; 5437 5438 if ((ret = zpool_vdev_guid(zhp, vdevname, &vdev_guid)) != 0) 5439 return (ret); 5440 5441 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5442 return (no_memory(zhp->zpool_hdl)); 5443 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 5444 return (no_memory(zhp->zpool_hdl)); 5445 5446 fnvlist_add_uint64(nvl, ZPOOL_VDEV_PROPS_SET_VDEV, vdev_guid); 5447 5448 if (nvlist_add_string(props, propname, propval) != 0) { 5449 nvlist_free(props); 5450 return (no_memory(zhp->zpool_hdl)); 5451 } 5452 5453 char errbuf[ERRBUFLEN]; 5454 (void) snprintf(errbuf, sizeof (errbuf), 5455 dgettext(TEXT_DOMAIN, "cannot set property %s for %s on %s"), 5456 propname, vdevname, zhp->zpool_name); 5457 5458 flags.vdevprop = 1; 5459 version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL); 5460 if ((realprops = zpool_valid_proplist(zhp->zpool_hdl, 5461 zhp->zpool_name, props, version, flags, errbuf)) == NULL) { 5462 nvlist_free(props); 5463 nvlist_free(nvl); 5464 return (-1); 5465 } 5466 5467 nvlist_free(props); 5468 props = realprops; 5469 5470 fnvlist_add_nvlist(nvl, ZPOOL_VDEV_PROPS_SET_PROPS, props); 5471 5472 ret = lzc_set_vdev_prop(zhp->zpool_name, nvl, &outnvl); 5473 5474 nvlist_free(props); 5475 nvlist_free(nvl); 5476 nvlist_free(outnvl); 5477 5478 if (ret) 5479 (void) zpool_standard_error(zhp->zpool_hdl, errno, errbuf); 5480 5481 return (ret); 5482 } 5483