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