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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 http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <stdio.h>
27 #include <stdio_ext.h>
28 #include <stdlib.h>
29 #include <ctype.h>
30 #include <sys/zfs_context.h>
31 #include <sys/spa.h>
32 #include <sys/spa_impl.h>
33 #include <sys/dmu.h>
34 #include <sys/zap.h>
35 #include <sys/fs/zfs.h>
36 #include <sys/zfs_znode.h>
37 #include <sys/vdev.h>
38 #include <sys/vdev_impl.h>
39 #include <sys/metaslab_impl.h>
40 #include <sys/dmu_objset.h>
41 #include <sys/dsl_dir.h>
42 #include <sys/dsl_dataset.h>
43 #include <sys/dsl_pool.h>
44 #include <sys/dbuf.h>
45 #include <sys/zil.h>
46 #include <sys/zil_impl.h>
47 #include <sys/stat.h>
48 #include <sys/resource.h>
49 #include <sys/dmu_traverse.h>
50 #include <sys/zio_checksum.h>
51 #include <sys/zio_compress.h>
52 #include <sys/zfs_fuid.h>
53 #include <sys/arc.h>
54 #undef ZFS_MAXNAMELEN
55 #undef verify
56 #include <libzfs.h>
57
58 const char cmdname[] = "zdb";
59 uint8_t dump_opt[256];
60
61 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
62
63 extern void dump_intent_log(zilog_t *);
64 uint64_t *zopt_object = NULL;
65 int zopt_objects = 0;
66 libzfs_handle_t *g_zfs;
67 boolean_t zdb_sig_user_data = B_TRUE;
68 int zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256;
69
70 /*
71 * These libumem hooks provide a reasonable set of defaults for the allocator's
72 * debugging facilities.
73 */
74 const char *
75 _umem_debug_init()
76 {
77 return ("default,verbose"); /* $UMEM_DEBUG setting */
78 }
79
80 const char *
81 _umem_logging_init(void)
82 {
83 return ("fail,contents"); /* $UMEM_LOGGING setting */
84 }
85
86 static void
87 usage(void)
88 {
89 (void) fprintf(stderr,
90 "Usage: %s [-udibcsvL] [-U cachefile_path] [-t txg]\n"
91 "\t [-S user:cksumalg] "
92 "dataset [object...]\n"
93 " %s -C [pool]\n"
94 " %s -l dev\n"
95 " %s -R pool:vdev:offset:size:flags\n"
96 " %s [-p path_to_vdev_dir]\n"
97 " %s -e pool | GUID | devid ...\n",
98 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
99
100 (void) fprintf(stderr, " -u uberblock\n");
101 (void) fprintf(stderr, " -d datasets\n");
102 (void) fprintf(stderr, " -C cached pool configuration\n");
103 (void) fprintf(stderr, " -i intent logs\n");
104 (void) fprintf(stderr, " -b block statistics\n");
105 (void) fprintf(stderr, " -m metaslabs\n");
106 (void) fprintf(stderr, " -c checksum all metadata (twice for "
107 "all data) blocks\n");
108 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
109 (void) fprintf(stderr, " -S <user|all>:<cksum_alg|all> -- "
110 "dump blkptr signatures\n");
111 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
112 (void) fprintf(stderr, " -l dump label contents\n");
113 (void) fprintf(stderr, " -L disable leak tracking (do not "
114 "load spacemaps)\n");
115 (void) fprintf(stderr, " -U cachefile_path -- use alternate "
116 "cachefile\n");
117 (void) fprintf(stderr, " -R read and display block from a "
118 "device\n");
119 (void) fprintf(stderr, " -e Pool is exported/destroyed/"
120 "has altroot\n");
121 (void) fprintf(stderr, " -p <Path to vdev dir> (use with -e)\n");
122 (void) fprintf(stderr, " -t <txg> highest txg to use when "
123 "searching for uberblocks\n");
124 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
125 "to make only that option verbose\n");
126 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
127 exit(1);
128 }
129
130 /*
131 * Called for usage errors that are discovered after a call to spa_open(),
132 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
133 */
134
135 static void
136 fatal(const char *fmt, ...)
137 {
138 va_list ap;
139
140 va_start(ap, fmt);
141 (void) fprintf(stderr, "%s: ", cmdname);
142 (void) vfprintf(stderr, fmt, ap);
143 va_end(ap);
144 (void) fprintf(stderr, "\n");
145
146 exit(1);
147 }
148
149 static void
150 dump_nvlist(nvlist_t *list, int indent)
151 {
152 nvpair_t *elem = NULL;
153
154 while ((elem = nvlist_next_nvpair(list, elem)) != NULL) {
155 switch (nvpair_type(elem)) {
156 case DATA_TYPE_STRING:
157 {
158 char *value;
159
160 VERIFY(nvpair_value_string(elem, &value) == 0);
161 (void) printf("%*s%s='%s'\n", indent, "",
162 nvpair_name(elem), value);
163 }
164 break;
165
166 case DATA_TYPE_UINT64:
167 {
168 uint64_t value;
169
170 VERIFY(nvpair_value_uint64(elem, &value) == 0);
171 (void) printf("%*s%s=%llu\n", indent, "",
172 nvpair_name(elem), (u_longlong_t)value);
173 }
174 break;
175
176 case DATA_TYPE_NVLIST:
177 {
178 nvlist_t *value;
179
180 VERIFY(nvpair_value_nvlist(elem, &value) == 0);
181 (void) printf("%*s%s\n", indent, "",
182 nvpair_name(elem));
183 dump_nvlist(value, indent + 4);
184 }
185 break;
186
187 case DATA_TYPE_NVLIST_ARRAY:
188 {
189 nvlist_t **value;
190 uint_t c, count;
191
192 VERIFY(nvpair_value_nvlist_array(elem, &value,
193 &count) == 0);
194
195 for (c = 0; c < count; c++) {
196 (void) printf("%*s%s[%u]\n", indent, "",
197 nvpair_name(elem), c);
198 dump_nvlist(value[c], indent + 8);
199 }
200 }
201 break;
202
203 default:
204
205 (void) printf("bad config type %d for %s\n",
206 nvpair_type(elem), nvpair_name(elem));
207 }
208 }
209 }
210
211 /* ARGSUSED */
212 static void
213 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
214 {
215 nvlist_t *nv;
216 size_t nvsize = *(uint64_t *)data;
217 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
218
219 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
220
221 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
222
223 umem_free(packed, nvsize);
224
225 dump_nvlist(nv, 8);
226
227 nvlist_free(nv);
228 }
229
230 const char dump_zap_stars[] = "****************************************";
231 const int dump_zap_width = sizeof (dump_zap_stars) - 1;
232
233 static void
234 dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE])
235 {
236 int i;
237 int minidx = ZAP_HISTOGRAM_SIZE - 1;
238 int maxidx = 0;
239 uint64_t max = 0;
240
241 for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) {
242 if (histo[i] > max)
243 max = histo[i];
244 if (histo[i] > 0 && i > maxidx)
245 maxidx = i;
246 if (histo[i] > 0 && i < minidx)
247 minidx = i;
248 }
249
250 if (max < dump_zap_width)
251 max = dump_zap_width;
252
253 for (i = minidx; i <= maxidx; i++)
254 (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i],
255 &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]);
256 }
257
258 static void
259 dump_zap_stats(objset_t *os, uint64_t object)
260 {
261 int error;
262 zap_stats_t zs;
263
264 error = zap_get_stats(os, object, &zs);
265 if (error)
266 return;
267
268 if (zs.zs_ptrtbl_len == 0) {
269 ASSERT(zs.zs_num_blocks == 1);
270 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
271 (u_longlong_t)zs.zs_blocksize,
272 (u_longlong_t)zs.zs_num_entries);
273 return;
274 }
275
276 (void) printf("\tFat ZAP stats:\n");
277
278 (void) printf("\t\tPointer table:\n");
279 (void) printf("\t\t\t%llu elements\n",
280 (u_longlong_t)zs.zs_ptrtbl_len);
281 (void) printf("\t\t\tzt_blk: %llu\n",
282 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
283 (void) printf("\t\t\tzt_numblks: %llu\n",
284 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
285 (void) printf("\t\t\tzt_shift: %llu\n",
286 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
287 (void) printf("\t\t\tzt_blks_copied: %llu\n",
288 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
289 (void) printf("\t\t\tzt_nextblk: %llu\n",
290 (u_longlong_t)zs.zs_ptrtbl_nextblk);
291
292 (void) printf("\t\tZAP entries: %llu\n",
293 (u_longlong_t)zs.zs_num_entries);
294 (void) printf("\t\tLeaf blocks: %llu\n",
295 (u_longlong_t)zs.zs_num_leafs);
296 (void) printf("\t\tTotal blocks: %llu\n",
297 (u_longlong_t)zs.zs_num_blocks);
298 (void) printf("\t\tzap_block_type: 0x%llx\n",
299 (u_longlong_t)zs.zs_block_type);
300 (void) printf("\t\tzap_magic: 0x%llx\n",
301 (u_longlong_t)zs.zs_magic);
302 (void) printf("\t\tzap_salt: 0x%llx\n",
303 (u_longlong_t)zs.zs_salt);
304
305 (void) printf("\t\tLeafs with 2^n pointers:\n");
306 dump_zap_histogram(zs.zs_leafs_with_2n_pointers);
307
308 (void) printf("\t\tBlocks with n*5 entries:\n");
309 dump_zap_histogram(zs.zs_blocks_with_n5_entries);
310
311 (void) printf("\t\tBlocks n/10 full:\n");
312 dump_zap_histogram(zs.zs_blocks_n_tenths_full);
313
314 (void) printf("\t\tEntries with n chunks:\n");
315 dump_zap_histogram(zs.zs_entries_using_n_chunks);
316
317 (void) printf("\t\tBuckets with n entries:\n");
318 dump_zap_histogram(zs.zs_buckets_with_n_entries);
319 }
320
321 /*ARGSUSED*/
322 static void
323 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
324 {
325 }
326
327 /*ARGSUSED*/
328 void
329 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
330 {
331 }
332
333 /*ARGSUSED*/
334 static void
335 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
336 {
337 }
338
339 /*ARGSUSED*/
340 static void
341 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
342 {
343 zap_cursor_t zc;
344 zap_attribute_t attr;
345 void *prop;
346 int i;
347
348 dump_zap_stats(os, object);
349 (void) printf("\n");
350
351 for (zap_cursor_init(&zc, os, object);
352 zap_cursor_retrieve(&zc, &attr) == 0;
353 zap_cursor_advance(&zc)) {
354 (void) printf("\t\t%s = ", attr.za_name);
355 if (attr.za_num_integers == 0) {
356 (void) printf("\n");
357 continue;
358 }
359 prop = umem_zalloc(attr.za_num_integers *
360 attr.za_integer_length, UMEM_NOFAIL);
361 (void) zap_lookup(os, object, attr.za_name,
362 attr.za_integer_length, attr.za_num_integers, prop);
363 if (attr.za_integer_length == 1) {
364 (void) printf("%s", (char *)prop);
365 } else {
366 for (i = 0; i < attr.za_num_integers; i++) {
367 switch (attr.za_integer_length) {
368 case 2:
369 (void) printf("%u ",
370 ((uint16_t *)prop)[i]);
371 break;
372 case 4:
373 (void) printf("%u ",
374 ((uint32_t *)prop)[i]);
375 break;
376 case 8:
377 (void) printf("%lld ",
378 (u_longlong_t)((int64_t *)prop)[i]);
379 break;
380 }
381 }
382 }
383 (void) printf("\n");
384 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
385 }
386 zap_cursor_fini(&zc);
387 }
388
389 /*ARGSUSED*/
390 static void
391 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
392 {
393 zap_cursor_t zc;
394 zap_attribute_t attr;
395 const char *typenames[] = {
396 /* 0 */ "not specified",
397 /* 1 */ "FIFO",
398 /* 2 */ "Character Device",
399 /* 3 */ "3 (invalid)",
400 /* 4 */ "Directory",
401 /* 5 */ "5 (invalid)",
402 /* 6 */ "Block Device",
403 /* 7 */ "7 (invalid)",
404 /* 8 */ "Regular File",
405 /* 9 */ "9 (invalid)",
406 /* 10 */ "Symbolic Link",
407 /* 11 */ "11 (invalid)",
408 /* 12 */ "Socket",
409 /* 13 */ "Door",
410 /* 14 */ "Event Port",
411 /* 15 */ "15 (invalid)",
412 };
413
414 dump_zap_stats(os, object);
415 (void) printf("\n");
416
417 for (zap_cursor_init(&zc, os, object);
418 zap_cursor_retrieve(&zc, &attr) == 0;
419 zap_cursor_advance(&zc)) {
420 (void) printf("\t\t%s = %lld (type: %s)\n",
421 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
422 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
423 }
424 zap_cursor_fini(&zc);
425 }
426
427 static void
428 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm)
429 {
430 uint64_t alloc, offset, entry;
431 uint8_t mapshift = sm->sm_shift;
432 uint64_t mapstart = sm->sm_start;
433 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
434 "INVALID", "INVALID", "INVALID", "INVALID" };
435
436 if (smo->smo_object == 0)
437 return;
438
439 /*
440 * Print out the freelist entries in both encoded and decoded form.
441 */
442 alloc = 0;
443 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) {
444 VERIFY(0 == dmu_read(os, smo->smo_object, offset,
445 sizeof (entry), &entry, DMU_READ_PREFETCH));
446 if (SM_DEBUG_DECODE(entry)) {
447 (void) printf("\t\t[%4llu] %s: txg %llu, pass %llu\n",
448 (u_longlong_t)(offset / sizeof (entry)),
449 ddata[SM_DEBUG_ACTION_DECODE(entry)],
450 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
451 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
452 } else {
453 (void) printf("\t\t[%4llu] %c range:"
454 " %08llx-%08llx size: %06llx\n",
455 (u_longlong_t)(offset / sizeof (entry)),
456 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
457 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
458 mapshift) + mapstart),
459 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
460 mapshift) + mapstart + (SM_RUN_DECODE(entry) <<
461 mapshift)),
462 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
463 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
464 alloc += SM_RUN_DECODE(entry) << mapshift;
465 else
466 alloc -= SM_RUN_DECODE(entry) << mapshift;
467 }
468 }
469 if (alloc != smo->smo_alloc) {
470 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
471 "with space map summary (%llu)\n",
472 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc);
473 }
474 }
475
476 static void
477 dump_metaslab_stats(metaslab_t *msp)
478 {
479 char maxbuf[5];
480 space_map_t *sm = &msp->ms_map;
481 avl_tree_t *t = sm->sm_pp_root;
482 int free_pct = sm->sm_space * 100 / sm->sm_size;
483
484 nicenum(space_map_maxsize(sm), maxbuf);
485
486 (void) printf("\t %20s %10lu %7s %6s %4s %4d%%\n",
487 "segments", avl_numnodes(t), "maxsize", maxbuf,
488 "freepct", free_pct);
489 }
490
491 static void
492 dump_metaslab(metaslab_t *msp)
493 {
494 char freebuf[5];
495 space_map_obj_t *smo = &msp->ms_smo;
496 vdev_t *vd = msp->ms_group->mg_vd;
497 spa_t *spa = vd->vdev_spa;
498
499 nicenum(msp->ms_map.sm_size - smo->smo_alloc, freebuf);
500
501 (void) printf(
502 "\tvdev %5llu offset %12llx spacemap %6llu free %5s\n",
503 (u_longlong_t)vd->vdev_id, (u_longlong_t)msp->ms_map.sm_start,
504 (u_longlong_t)smo->smo_object, freebuf);
505
506 if (dump_opt['m'] > 1) {
507 mutex_enter(&msp->ms_lock);
508 VERIFY(space_map_load(&msp->ms_map, zfs_metaslab_ops,
509 SM_FREE, &msp->ms_smo, spa->spa_meta_objset) == 0);
510 dump_metaslab_stats(msp);
511 space_map_unload(&msp->ms_map);
512 mutex_exit(&msp->ms_lock);
513 }
514
515 if (dump_opt['d'] > 5 || dump_opt['m'] > 2) {
516 ASSERT(msp->ms_map.sm_size == (1ULL << vd->vdev_ms_shift));
517
518 mutex_enter(&msp->ms_lock);
519 dump_spacemap(spa->spa_meta_objset, smo, &msp->ms_map);
520 mutex_exit(&msp->ms_lock);
521 }
522
523 }
524
525 static void
526 dump_metaslabs(spa_t *spa)
527 {
528 vdev_t *rvd = spa->spa_root_vdev;
529 vdev_t *vd;
530 int c, m;
531
532 (void) printf("\nMetaslabs:\n");
533
534 for (c = 0; c < rvd->vdev_children; c++) {
535 vd = rvd->vdev_child[c];
536
537 (void) printf("\t%-10s %-19s %-15s %-10s\n",
538 "vdev", "offset", "spacemap", "free");
539 (void) printf("\t%10s %19s %15s %10s\n",
540 "----------", "-------------------",
541 "---------------", "-------------");
542
543 for (m = 0; m < vd->vdev_ms_count; m++)
544 dump_metaslab(vd->vdev_ms[m]);
545 (void) printf("\n");
546 }
547 }
548
549 static void
550 dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size)
551 {
552 char *prefix = (void *)sm;
553
554 (void) printf("%s [%llu,%llu) length %llu\n",
555 prefix,
556 (u_longlong_t)start,
557 (u_longlong_t)(start + size),
558 (u_longlong_t)(size));
559 }
560
561 static void
562 dump_dtl(vdev_t *vd, int indent)
563 {
564 spa_t *spa = vd->vdev_spa;
565 boolean_t required;
566 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
567 char prefix[256];
568
569 spa_vdev_state_enter(spa);
570 required = vdev_dtl_required(vd);
571 (void) spa_vdev_state_exit(spa, NULL, 0);
572
573 if (indent == 0)
574 (void) printf("\nDirty time logs:\n\n");
575
576 (void) printf("\t%*s%s [%s]\n", indent, "",
577 vd->vdev_path ? vd->vdev_path :
578 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
579 required ? "DTL-required" : "DTL-expendable");
580
581 for (int t = 0; t < DTL_TYPES; t++) {
582 space_map_t *sm = &vd->vdev_dtl[t];
583 if (sm->sm_space == 0)
584 continue;
585 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
586 indent + 2, "", name[t]);
587 mutex_enter(sm->sm_lock);
588 space_map_walk(sm, dump_dtl_seg, (void *)prefix);
589 mutex_exit(sm->sm_lock);
590 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
591 dump_spacemap(spa->spa_meta_objset,
592 &vd->vdev_dtl_smo, sm);
593 }
594
595 for (int c = 0; c < vd->vdev_children; c++)
596 dump_dtl(vd->vdev_child[c], indent + 4);
597 }
598
599 /*ARGSUSED*/
600 static void
601 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
602 {
603 }
604
605 static uint64_t
606 blkid2offset(const dnode_phys_t *dnp, int level, uint64_t blkid)
607 {
608 if (level < 0)
609 return (blkid);
610
611 return ((blkid << (level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
612 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
613 }
614
615 static void
616 sprintf_blkptr_compact(char *blkbuf, blkptr_t *bp, int alldvas)
617 {
618 dva_t *dva = bp->blk_dva;
619 int ndvas = alldvas ? BP_GET_NDVAS(bp) : 1;
620 int i;
621
622 blkbuf[0] = '\0';
623
624 for (i = 0; i < ndvas; i++)
625 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ",
626 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
627 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
628 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
629
630 (void) sprintf(blkbuf + strlen(blkbuf), "%llxL/%llxP F=%llu B=%llu",
631 (u_longlong_t)BP_GET_LSIZE(bp),
632 (u_longlong_t)BP_GET_PSIZE(bp),
633 (u_longlong_t)bp->blk_fill,
634 (u_longlong_t)bp->blk_birth);
635 }
636
637 static void
638 print_indirect(blkptr_t *bp, const zbookmark_t *zb,
639 const dnode_phys_t *dnp)
640 {
641 char blkbuf[BP_SPRINTF_LEN];
642 int l;
643
644 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
645 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
646
647 (void) printf("%16llx ",
648 (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid));
649
650 ASSERT(zb->zb_level >= 0);
651
652 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
653 if (l == zb->zb_level) {
654 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
655 } else {
656 (void) printf(" ");
657 }
658 }
659
660 sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0);
661 (void) printf("%s\n", blkbuf);
662 }
663
664 #define SET_BOOKMARK(zb, objset, object, level, blkid) \
665 { \
666 (zb)->zb_objset = objset; \
667 (zb)->zb_object = object; \
668 (zb)->zb_level = level; \
669 (zb)->zb_blkid = blkid; \
670 }
671
672 static int
673 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
674 blkptr_t *bp, const zbookmark_t *zb)
675 {
676 int err;
677
678 if (bp->blk_birth == 0)
679 return (0);
680
681 print_indirect(bp, zb, dnp);
682
683 if (BP_GET_LEVEL(bp) > 0) {
684 uint32_t flags = ARC_WAIT;
685 int i;
686 blkptr_t *cbp;
687 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
688 arc_buf_t *buf;
689 uint64_t fill = 0;
690
691 err = arc_read_nolock(NULL, spa, bp, arc_getbuf_func, &buf,
692 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
693 if (err)
694 return (err);
695
696 /* recursively visit blocks below this */
697 cbp = buf->b_data;
698 for (i = 0; i < epb; i++, cbp++) {
699 zbookmark_t czb;
700
701 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
702 zb->zb_level - 1,
703 zb->zb_blkid * epb + i);
704 err = visit_indirect(spa, dnp, cbp, &czb);
705 if (err)
706 break;
707 fill += cbp->blk_fill;
708 }
709 if (!err)
710 ASSERT3U(fill, ==, bp->blk_fill);
711 (void) arc_buf_remove_ref(buf, &buf);
712 }
713
714 return (err);
715 }
716
717 /*ARGSUSED*/
718 static void
719 dump_indirect(dnode_t *dn)
720 {
721 dnode_phys_t *dnp = dn->dn_phys;
722 int j;
723 zbookmark_t czb;
724
725 (void) printf("Indirect blocks:\n");
726
727 SET_BOOKMARK(&czb, dmu_objset_id(&dn->dn_objset->os),
728 dn->dn_object, dnp->dn_nlevels - 1, 0);
729 for (j = 0; j < dnp->dn_nblkptr; j++) {
730 czb.zb_blkid = j;
731 (void) visit_indirect(dmu_objset_spa(&dn->dn_objset->os), dnp,
732 &dnp->dn_blkptr[j], &czb);
733 }
734
735 (void) printf("\n");
736 }
737
738 /*ARGSUSED*/
739 static void
740 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
741 {
742 dsl_dir_phys_t *dd = data;
743 time_t crtime;
744 char nice[6];
745
746 if (dd == NULL)
747 return;
748
749 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
750
751 crtime = dd->dd_creation_time;
752 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
753 (void) printf("\t\thead_dataset_obj = %llu\n",
754 (u_longlong_t)dd->dd_head_dataset_obj);
755 (void) printf("\t\tparent_dir_obj = %llu\n",
756 (u_longlong_t)dd->dd_parent_obj);
757 (void) printf("\t\torigin_obj = %llu\n",
758 (u_longlong_t)dd->dd_origin_obj);
759 (void) printf("\t\tchild_dir_zapobj = %llu\n",
760 (u_longlong_t)dd->dd_child_dir_zapobj);
761 nicenum(dd->dd_used_bytes, nice);
762 (void) printf("\t\tused_bytes = %s\n", nice);
763 nicenum(dd->dd_compressed_bytes, nice);
764 (void) printf("\t\tcompressed_bytes = %s\n", nice);
765 nicenum(dd->dd_uncompressed_bytes, nice);
766 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
767 nicenum(dd->dd_quota, nice);
768 (void) printf("\t\tquota = %s\n", nice);
769 nicenum(dd->dd_reserved, nice);
770 (void) printf("\t\treserved = %s\n", nice);
771 (void) printf("\t\tprops_zapobj = %llu\n",
772 (u_longlong_t)dd->dd_props_zapobj);
773 (void) printf("\t\tdeleg_zapobj = %llu\n",
774 (u_longlong_t)dd->dd_deleg_zapobj);
775 (void) printf("\t\tflags = %llx\n",
776 (u_longlong_t)dd->dd_flags);
777
778 #define DO(which) \
779 nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
780 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
781 DO(HEAD);
782 DO(SNAP);
783 DO(CHILD);
784 DO(CHILD_RSRV);
785 DO(REFRSRV);
786 #undef DO
787 }
788
789 /*ARGSUSED*/
790 static void
791 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
792 {
793 dsl_dataset_phys_t *ds = data;
794 time_t crtime;
795 char used[6], compressed[6], uncompressed[6], unique[6];
796 char blkbuf[BP_SPRINTF_LEN];
797
798 if (ds == NULL)
799 return;
800
801 ASSERT(size == sizeof (*ds));
802 crtime = ds->ds_creation_time;
803 nicenum(ds->ds_used_bytes, used);
804 nicenum(ds->ds_compressed_bytes, compressed);
805 nicenum(ds->ds_uncompressed_bytes, uncompressed);
806 nicenum(ds->ds_unique_bytes, unique);
807 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ds->ds_bp);
808
809 (void) printf("\t\tdir_obj = %llu\n",
810 (u_longlong_t)ds->ds_dir_obj);
811 (void) printf("\t\tprev_snap_obj = %llu\n",
812 (u_longlong_t)ds->ds_prev_snap_obj);
813 (void) printf("\t\tprev_snap_txg = %llu\n",
814 (u_longlong_t)ds->ds_prev_snap_txg);
815 (void) printf("\t\tnext_snap_obj = %llu\n",
816 (u_longlong_t)ds->ds_next_snap_obj);
817 (void) printf("\t\tsnapnames_zapobj = %llu\n",
818 (u_longlong_t)ds->ds_snapnames_zapobj);
819 (void) printf("\t\tnum_children = %llu\n",
820 (u_longlong_t)ds->ds_num_children);
821 (void) printf("\t\tuserrefs_obj = %llu\n",
822 (u_longlong_t)ds->ds_userrefs_obj);
823 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
824 (void) printf("\t\tcreation_txg = %llu\n",
825 (u_longlong_t)ds->ds_creation_txg);
826 (void) printf("\t\tdeadlist_obj = %llu\n",
827 (u_longlong_t)ds->ds_deadlist_obj);
828 (void) printf("\t\tused_bytes = %s\n", used);
829 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
830 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
831 (void) printf("\t\tunique = %s\n", unique);
832 (void) printf("\t\tfsid_guid = %llu\n",
833 (u_longlong_t)ds->ds_fsid_guid);
834 (void) printf("\t\tguid = %llu\n",
835 (u_longlong_t)ds->ds_guid);
836 (void) printf("\t\tflags = %llx\n",
837 (u_longlong_t)ds->ds_flags);
838 (void) printf("\t\tnext_clones_obj = %llu\n",
839 (u_longlong_t)ds->ds_next_clones_obj);
840 (void) printf("\t\tprops_obj = %llu\n",
841 (u_longlong_t)ds->ds_props_obj);
842 (void) printf("\t\tbp = %s\n", blkbuf);
843 }
844
845 static void
846 dump_bplist(objset_t *mos, uint64_t object, char *name)
847 {
848 bplist_t bpl = { 0 };
849 blkptr_t blk, *bp = &blk;
850 uint64_t itor = 0;
851 char bytes[6];
852 char comp[6];
853 char uncomp[6];
854
855 if (dump_opt['d'] < 3)
856 return;
857
858 mutex_init(&bpl.bpl_lock, NULL, MUTEX_DEFAULT, NULL);
859 VERIFY(0 == bplist_open(&bpl, mos, object));
860 if (bplist_empty(&bpl)) {
861 bplist_close(&bpl);
862 mutex_destroy(&bpl.bpl_lock);
863 return;
864 }
865
866 nicenum(bpl.bpl_phys->bpl_bytes, bytes);
867 if (bpl.bpl_dbuf->db_size == sizeof (bplist_phys_t)) {
868 nicenum(bpl.bpl_phys->bpl_comp, comp);
869 nicenum(bpl.bpl_phys->bpl_uncomp, uncomp);
870 (void) printf("\n %s: %llu entries, %s (%s/%s comp)\n",
871 name, (u_longlong_t)bpl.bpl_phys->bpl_entries,
872 bytes, comp, uncomp);
873 } else {
874 (void) printf("\n %s: %llu entries, %s\n",
875 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, bytes);
876 }
877
878 if (dump_opt['d'] < 5) {
879 bplist_close(&bpl);
880 mutex_destroy(&bpl.bpl_lock);
881 return;
882 }
883
884 (void) printf("\n");
885
886 while (bplist_iterate(&bpl, &itor, bp) == 0) {
887 char blkbuf[BP_SPRINTF_LEN];
888
889 ASSERT(bp->blk_birth != 0);
890 sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0);
891 (void) printf("\tItem %3llu: %s\n",
892 (u_longlong_t)itor - 1, blkbuf);
893 }
894
895 bplist_close(&bpl);
896 mutex_destroy(&bpl.bpl_lock);
897 }
898
899 static avl_tree_t idx_tree;
900 static avl_tree_t domain_tree;
901 static boolean_t fuid_table_loaded;
902
903 static void
904 fuid_table_destroy()
905 {
906 if (fuid_table_loaded) {
907 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
908 fuid_table_loaded = B_FALSE;
909 }
910 }
911
912 /*
913 * print uid or gid information.
914 * For normal POSIX id just the id is printed in decimal format.
915 * For CIFS files with FUID the fuid is printed in hex followed by
916 * the doman-rid string.
917 */
918 static void
919 print_idstr(uint64_t id, const char *id_type)
920 {
921 if (FUID_INDEX(id)) {
922 char *domain;
923
924 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
925 (void) printf("\t%s %llx [%s-%d]\n", id_type,
926 (u_longlong_t)id, domain, (int)FUID_RID(id));
927 } else {
928 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
929 }
930
931 }
932
933 static void
934 dump_uidgid(objset_t *os, znode_phys_t *zp)
935 {
936 uint32_t uid_idx, gid_idx;
937
938 uid_idx = FUID_INDEX(zp->zp_uid);
939 gid_idx = FUID_INDEX(zp->zp_gid);
940
941 /* Load domain table, if not already loaded */
942 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
943 uint64_t fuid_obj;
944
945 /* first find the fuid object. It lives in the master node */
946 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
947 8, 1, &fuid_obj) == 0);
948 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
949 (void) zfs_fuid_table_load(os, fuid_obj,
950 &idx_tree, &domain_tree);
951 fuid_table_loaded = B_TRUE;
952 }
953
954 print_idstr(zp->zp_uid, "uid");
955 print_idstr(zp->zp_gid, "gid");
956 }
957
958 /*ARGSUSED*/
959 static void
960 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
961 {
962 znode_phys_t *zp = data;
963 time_t z_crtime, z_atime, z_mtime, z_ctime;
964 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
965 int error;
966
967 ASSERT(size >= sizeof (znode_phys_t));
968
969 error = zfs_obj_to_path(os, object, path, sizeof (path));
970 if (error != 0) {
971 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
972 (u_longlong_t)object);
973 }
974
975 if (dump_opt['d'] < 3) {
976 (void) printf("\t%s\n", path);
977 return;
978 }
979
980 z_crtime = (time_t)zp->zp_crtime[0];
981 z_atime = (time_t)zp->zp_atime[0];
982 z_mtime = (time_t)zp->zp_mtime[0];
983 z_ctime = (time_t)zp->zp_ctime[0];
984
985 (void) printf("\tpath %s\n", path);
986 dump_uidgid(os, zp);
987 (void) printf("\tatime %s", ctime(&z_atime));
988 (void) printf("\tmtime %s", ctime(&z_mtime));
989 (void) printf("\tctime %s", ctime(&z_ctime));
990 (void) printf("\tcrtime %s", ctime(&z_crtime));
991 (void) printf("\tgen %llu\n", (u_longlong_t)zp->zp_gen);
992 (void) printf("\tmode %llo\n", (u_longlong_t)zp->zp_mode);
993 (void) printf("\tsize %llu\n", (u_longlong_t)zp->zp_size);
994 (void) printf("\tparent %llu\n", (u_longlong_t)zp->zp_parent);
995 (void) printf("\tlinks %llu\n", (u_longlong_t)zp->zp_links);
996 (void) printf("\txattr %llu\n", (u_longlong_t)zp->zp_xattr);
997 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)zp->zp_rdev);
998 }
999
1000 /*ARGSUSED*/
1001 static void
1002 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1003 {
1004 }
1005
1006 /*ARGSUSED*/
1007 static void
1008 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1009 {
1010 }
1011
1012 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES] = {
1013 dump_none, /* unallocated */
1014 dump_zap, /* object directory */
1015 dump_uint64, /* object array */
1016 dump_none, /* packed nvlist */
1017 dump_packed_nvlist, /* packed nvlist size */
1018 dump_none, /* bplist */
1019 dump_none, /* bplist header */
1020 dump_none, /* SPA space map header */
1021 dump_none, /* SPA space map */
1022 dump_none, /* ZIL intent log */
1023 dump_dnode, /* DMU dnode */
1024 dump_dmu_objset, /* DMU objset */
1025 dump_dsl_dir, /* DSL directory */
1026 dump_zap, /* DSL directory child map */
1027 dump_zap, /* DSL dataset snap map */
1028 dump_zap, /* DSL props */
1029 dump_dsl_dataset, /* DSL dataset */
1030 dump_znode, /* ZFS znode */
1031 dump_acl, /* ZFS V0 ACL */
1032 dump_uint8, /* ZFS plain file */
1033 dump_zpldir, /* ZFS directory */
1034 dump_zap, /* ZFS master node */
1035 dump_zap, /* ZFS delete queue */
1036 dump_uint8, /* zvol object */
1037 dump_zap, /* zvol prop */
1038 dump_uint8, /* other uint8[] */
1039 dump_uint64, /* other uint64[] */
1040 dump_zap, /* other ZAP */
1041 dump_zap, /* persistent error log */
1042 dump_uint8, /* SPA history */
1043 dump_uint64, /* SPA history offsets */
1044 dump_zap, /* Pool properties */
1045 dump_zap, /* DSL permissions */
1046 dump_acl, /* ZFS ACL */
1047 dump_uint8, /* ZFS SYSACL */
1048 dump_none, /* FUID nvlist */
1049 dump_packed_nvlist, /* FUID nvlist size */
1050 dump_zap, /* DSL dataset next clones */
1051 dump_zap, /* DSL scrub queue */
1052 dump_zap, /* ZFS user/group used */
1053 dump_zap, /* ZFS user/group quota */
1054 dump_zap, /* snapshot refcount tags */
1055 };
1056
1057 static void
1058 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1059 {
1060 dmu_buf_t *db = NULL;
1061 dmu_object_info_t doi;
1062 dnode_t *dn;
1063 void *bonus = NULL;
1064 size_t bsize = 0;
1065 char iblk[6], dblk[6], lsize[6], asize[6], bonus_size[6], segsize[6];
1066 char aux[50];
1067 int error;
1068
1069 if (*print_header) {
1070 (void) printf("\n Object lvl iblk dblk lsize"
1071 " asize type\n");
1072 *print_header = 0;
1073 }
1074
1075 if (object == 0) {
1076 dn = os->os->os_meta_dnode;
1077 } else {
1078 error = dmu_bonus_hold(os, object, FTAG, &db);
1079 if (error)
1080 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1081 object, error);
1082 bonus = db->db_data;
1083 bsize = db->db_size;
1084 dn = ((dmu_buf_impl_t *)db)->db_dnode;
1085 }
1086 dmu_object_info_from_dnode(dn, &doi);
1087
1088 nicenum(doi.doi_metadata_block_size, iblk);
1089 nicenum(doi.doi_data_block_size, dblk);
1090 nicenum(doi.doi_data_block_size * (doi.doi_max_block_offset + 1),
1091 lsize);
1092 nicenum(doi.doi_physical_blks << 9, asize);
1093 nicenum(doi.doi_bonus_size, bonus_size);
1094
1095 aux[0] = '\0';
1096
1097 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1098 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1099 zio_checksum_table[doi.doi_checksum].ci_name);
1100 }
1101
1102 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1103 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1104 zio_compress_table[doi.doi_compress].ci_name);
1105 }
1106
1107 (void) printf("%10lld %3u %5s %5s %5s %5s %s%s\n",
1108 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, lsize,
1109 asize, dmu_ot[doi.doi_type].ot_name, aux);
1110
1111 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1112 (void) printf("%10s %3s %5s %5s %5s %5s %s\n",
1113 "", "", "", "", bonus_size, "bonus",
1114 dmu_ot[doi.doi_bonus_type].ot_name);
1115 }
1116
1117 if (verbosity >= 4) {
1118 (void) printf("\tdnode flags: %s%s\n",
1119 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1120 "USED_BYTES " : "",
1121 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1122 "USERUSED_ACCOUNTED " : "");
1123 (void) printf("\tdnode maxblkid: %llu\n",
1124 (longlong_t)dn->dn_phys->dn_maxblkid);
1125
1126 object_viewer[doi.doi_bonus_type](os, object, bonus, bsize);
1127 object_viewer[doi.doi_type](os, object, NULL, 0);
1128 *print_header = 1;
1129 }
1130
1131 if (verbosity >= 5)
1132 dump_indirect(dn);
1133
1134 if (verbosity >= 5) {
1135 /*
1136 * Report the list of segments that comprise the object.
1137 */
1138 uint64_t start = 0;
1139 uint64_t end;
1140 uint64_t blkfill = 1;
1141 int minlvl = 1;
1142
1143 if (dn->dn_type == DMU_OT_DNODE) {
1144 minlvl = 0;
1145 blkfill = DNODES_PER_BLOCK;
1146 }
1147
1148 for (;;) {
1149 error = dnode_next_offset(dn,
1150 0, &start, minlvl, blkfill, 0);
1151 if (error)
1152 break;
1153 end = start;
1154 error = dnode_next_offset(dn,
1155 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1156 nicenum(end - start, segsize);
1157 (void) printf("\t\tsegment [%016llx, %016llx)"
1158 " size %5s\n", (u_longlong_t)start,
1159 (u_longlong_t)end, segsize);
1160 if (error)
1161 break;
1162 start = end;
1163 }
1164 }
1165
1166 if (db != NULL)
1167 dmu_buf_rele(db, FTAG);
1168 }
1169
1170 static char *objset_types[DMU_OST_NUMTYPES] = {
1171 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1172
1173 static void
1174 dump_dir(objset_t *os)
1175 {
1176 dmu_objset_stats_t dds;
1177 uint64_t object, object_count;
1178 uint64_t refdbytes, usedobjs, scratch;
1179 char numbuf[8];
1180 char blkbuf[BP_SPRINTF_LEN + 20];
1181 char osname[MAXNAMELEN];
1182 char *type = "UNKNOWN";
1183 int verbosity = dump_opt['d'];
1184 int print_header = 1;
1185 int i, error;
1186
1187 dmu_objset_fast_stat(os, &dds);
1188
1189 if (dds.dds_type < DMU_OST_NUMTYPES)
1190 type = objset_types[dds.dds_type];
1191
1192 if (dds.dds_type == DMU_OST_META) {
1193 dds.dds_creation_txg = TXG_INITIAL;
1194 usedobjs = os->os->os_rootbp->blk_fill;
1195 refdbytes = os->os->os_spa->spa_dsl_pool->
1196 dp_mos_dir->dd_phys->dd_used_bytes;
1197 } else {
1198 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1199 }
1200
1201 ASSERT3U(usedobjs, ==, os->os->os_rootbp->blk_fill);
1202
1203 nicenum(refdbytes, numbuf);
1204
1205 if (verbosity >= 4) {
1206 (void) sprintf(blkbuf + strlen(blkbuf), ", rootbp ");
1207 (void) sprintf_blkptr(blkbuf + strlen(blkbuf),
1208 BP_SPRINTF_LEN - strlen(blkbuf), os->os->os_rootbp);
1209 } else {
1210 blkbuf[0] = '\0';
1211 }
1212
1213 dmu_objset_name(os, osname);
1214
1215 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1216 "%s, %llu objects%s\n",
1217 osname, type, (u_longlong_t)dmu_objset_id(os),
1218 (u_longlong_t)dds.dds_creation_txg,
1219 numbuf, (u_longlong_t)usedobjs, blkbuf);
1220
1221 dump_intent_log(dmu_objset_zil(os));
1222
1223 if (dmu_objset_ds(os) != NULL)
1224 dump_bplist(dmu_objset_pool(os)->dp_meta_objset,
1225 dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist");
1226
1227 if (verbosity < 2)
1228 return;
1229
1230 if (os->os->os_rootbp->blk_birth == 0)
1231 return;
1232
1233 if (zopt_objects != 0) {
1234 for (i = 0; i < zopt_objects; i++)
1235 dump_object(os, zopt_object[i], verbosity,
1236 &print_header);
1237 (void) printf("\n");
1238 return;
1239 }
1240
1241 dump_object(os, 0, verbosity, &print_header);
1242 object_count = 0;
1243 if (os->os->os_userused_dnode &&
1244 os->os->os_userused_dnode->dn_type != 0) {
1245 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1246 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1247 }
1248
1249 object = 0;
1250 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1251 dump_object(os, object, verbosity, &print_header);
1252 object_count++;
1253 }
1254
1255 ASSERT3U(object_count, ==, usedobjs);
1256
1257 (void) printf("\n");
1258
1259 if (error != ESRCH) {
1260 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1261 abort();
1262 }
1263 }
1264
1265 static void
1266 dump_uberblock(uberblock_t *ub)
1267 {
1268 time_t timestamp = ub->ub_timestamp;
1269
1270 (void) printf("Uberblock\n\n");
1271 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1272 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1273 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1274 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1275 (void) printf("\ttimestamp = %llu UTC = %s",
1276 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
1277 if (dump_opt['u'] >= 3) {
1278 char blkbuf[BP_SPRINTF_LEN];
1279 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ub->ub_rootbp);
1280 (void) printf("\trootbp = %s\n", blkbuf);
1281 }
1282 (void) printf("\n");
1283 }
1284
1285 static void
1286 dump_config(const char *pool)
1287 {
1288 spa_t *spa = NULL;
1289
1290 mutex_enter(&spa_namespace_lock);
1291 while ((spa = spa_next(spa)) != NULL) {
1292 if (pool == NULL)
1293 (void) printf("%s\n", spa_name(spa));
1294 if (pool == NULL || strcmp(pool, spa_name(spa)) == 0)
1295 dump_nvlist(spa->spa_config, 4);
1296 }
1297 mutex_exit(&spa_namespace_lock);
1298 }
1299
1300 static void
1301 dump_cachefile(const char *cachefile)
1302 {
1303 int fd;
1304 struct stat64 statbuf;
1305 char *buf;
1306 nvlist_t *config;
1307
1308 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1309 (void) printf("cannot open '%s': %s\n", cachefile,
1310 strerror(errno));
1311 exit(1);
1312 }
1313
1314 if (fstat64(fd, &statbuf) != 0) {
1315 (void) printf("failed to stat '%s': %s\n", cachefile,
1316 strerror(errno));
1317 exit(1);
1318 }
1319
1320 if ((buf = malloc(statbuf.st_size)) == NULL) {
1321 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
1322 (u_longlong_t)statbuf.st_size);
1323 exit(1);
1324 }
1325
1326 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1327 (void) fprintf(stderr, "failed to read %llu bytes\n",
1328 (u_longlong_t)statbuf.st_size);
1329 exit(1);
1330 }
1331
1332 (void) close(fd);
1333
1334 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
1335 (void) fprintf(stderr, "failed to unpack nvlist\n");
1336 exit(1);
1337 }
1338
1339 free(buf);
1340
1341 dump_nvlist(config, 0);
1342
1343 nvlist_free(config);
1344 }
1345
1346 static void
1347 dump_label(const char *dev)
1348 {
1349 int fd;
1350 vdev_label_t label;
1351 char *buf = label.vl_vdev_phys.vp_nvlist;
1352 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
1353 struct stat64 statbuf;
1354 uint64_t psize;
1355 int l;
1356
1357 if ((fd = open64(dev, O_RDONLY)) < 0) {
1358 (void) printf("cannot open '%s': %s\n", dev, strerror(errno));
1359 exit(1);
1360 }
1361
1362 if (fstat64(fd, &statbuf) != 0) {
1363 (void) printf("failed to stat '%s': %s\n", dev,
1364 strerror(errno));
1365 exit(1);
1366 }
1367
1368 psize = statbuf.st_size;
1369 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
1370
1371 for (l = 0; l < VDEV_LABELS; l++) {
1372
1373 nvlist_t *config = NULL;
1374
1375 (void) printf("--------------------------------------------\n");
1376 (void) printf("LABEL %d\n", l);
1377 (void) printf("--------------------------------------------\n");
1378
1379 if (pread64(fd, &label, sizeof (label),
1380 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
1381 (void) printf("failed to read label %d\n", l);
1382 continue;
1383 }
1384
1385 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
1386 (void) printf("failed to unpack label %d\n", l);
1387 continue;
1388 }
1389 dump_nvlist(config, 4);
1390 nvlist_free(config);
1391 }
1392 }
1393
1394 /*ARGSUSED*/
1395 static int
1396 dump_one_dir(char *dsname, void *arg)
1397 {
1398 int error;
1399 objset_t *os;
1400
1401 error = dmu_objset_open(dsname, DMU_OST_ANY,
1402 DS_MODE_USER | DS_MODE_READONLY, &os);
1403 if (error) {
1404 (void) printf("Could not open %s\n", dsname);
1405 return (0);
1406 }
1407 dump_dir(os);
1408 dmu_objset_close(os);
1409 fuid_table_destroy();
1410 return (0);
1411 }
1412
1413 static void
1414 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size)
1415 {
1416 vdev_t *vd = sm->sm_ppd;
1417
1418 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
1419 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
1420 }
1421
1422 /* ARGSUSED */
1423 static void
1424 zdb_space_map_load(space_map_t *sm)
1425 {
1426 }
1427
1428 static void
1429 zdb_space_map_unload(space_map_t *sm)
1430 {
1431 space_map_vacate(sm, zdb_leak, sm);
1432 }
1433
1434 /* ARGSUSED */
1435 static void
1436 zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size)
1437 {
1438 }
1439
1440 static space_map_ops_t zdb_space_map_ops = {
1441 zdb_space_map_load,
1442 zdb_space_map_unload,
1443 NULL, /* alloc */
1444 zdb_space_map_claim,
1445 NULL, /* free */
1446 NULL /* maxsize */
1447 };
1448
1449 static void
1450 zdb_leak_init(spa_t *spa)
1451 {
1452 vdev_t *rvd = spa->spa_root_vdev;
1453
1454 for (int c = 0; c < rvd->vdev_children; c++) {
1455 vdev_t *vd = rvd->vdev_child[c];
1456 for (int m = 0; m < vd->vdev_ms_count; m++) {
1457 metaslab_t *msp = vd->vdev_ms[m];
1458 mutex_enter(&msp->ms_lock);
1459 VERIFY(space_map_load(&msp->ms_map, &zdb_space_map_ops,
1460 SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset) == 0);
1461 msp->ms_map.sm_ppd = vd;
1462 mutex_exit(&msp->ms_lock);
1463 }
1464 }
1465 }
1466
1467 static void
1468 zdb_leak_fini(spa_t *spa)
1469 {
1470 vdev_t *rvd = spa->spa_root_vdev;
1471
1472 for (int c = 0; c < rvd->vdev_children; c++) {
1473 vdev_t *vd = rvd->vdev_child[c];
1474 for (int m = 0; m < vd->vdev_ms_count; m++) {
1475 metaslab_t *msp = vd->vdev_ms[m];
1476 mutex_enter(&msp->ms_lock);
1477 space_map_unload(&msp->ms_map);
1478 mutex_exit(&msp->ms_lock);
1479 }
1480 }
1481 }
1482
1483 /*
1484 * Verify that the sum of the sizes of all blocks in the pool adds up
1485 * to the SPA's sa_alloc total.
1486 */
1487 typedef struct zdb_blkstats {
1488 uint64_t zb_asize;
1489 uint64_t zb_lsize;
1490 uint64_t zb_psize;
1491 uint64_t zb_count;
1492 } zdb_blkstats_t;
1493
1494 #define DMU_OT_DEFERRED DMU_OT_NONE
1495 #define DMU_OT_TOTAL DMU_OT_NUMTYPES
1496
1497 #define ZB_TOTAL DN_MAX_LEVELS
1498
1499 typedef struct zdb_cb {
1500 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1];
1501 uint64_t zcb_errors[256];
1502 int zcb_readfails;
1503 int zcb_haderrors;
1504 } zdb_cb_t;
1505
1506 static void
1507 zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, dmu_object_type_t type)
1508 {
1509 for (int i = 0; i < 4; i++) {
1510 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
1511 int t = (i & 1) ? type : DMU_OT_TOTAL;
1512 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
1513
1514 zb->zb_asize += BP_GET_ASIZE(bp);
1515 zb->zb_lsize += BP_GET_LSIZE(bp);
1516 zb->zb_psize += BP_GET_PSIZE(bp);
1517 zb->zb_count++;
1518 }
1519
1520 if (dump_opt['S']) {
1521 boolean_t print_sig;
1522
1523 print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 &&
1524 BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS);
1525
1526 if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg)
1527 print_sig = B_FALSE;
1528
1529 if (print_sig) {
1530 (void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t"
1531 "%llx:%llx:%llx:%llx\n",
1532 (u_longlong_t)BP_GET_LEVEL(bp),
1533 (longlong_t)BP_GET_PSIZE(bp),
1534 (longlong_t)BP_GET_NDVAS(bp),
1535 dmu_ot[BP_GET_TYPE(bp)].ot_name,
1536 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name,
1537 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name,
1538 (u_longlong_t)bp->blk_cksum.zc_word[0],
1539 (u_longlong_t)bp->blk_cksum.zc_word[1],
1540 (u_longlong_t)bp->blk_cksum.zc_word[2],
1541 (u_longlong_t)bp->blk_cksum.zc_word[3]);
1542 }
1543 }
1544
1545 if (!dump_opt['L'])
1546 VERIFY(zio_wait(zio_claim(NULL, spa, spa_first_txg(spa), bp,
1547 NULL, NULL, ZIO_FLAG_MUSTSUCCEED)) == 0);
1548 }
1549
1550 static int
1551 zdb_blkptr_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb,
1552 const dnode_phys_t *dnp, void *arg)
1553 {
1554 zdb_cb_t *zcb = arg;
1555 char blkbuf[BP_SPRINTF_LEN];
1556 dmu_object_type_t type;
1557 boolean_t is_l0_metadata;
1558
1559 if (bp == NULL)
1560 return (0);
1561
1562 type = BP_GET_TYPE(bp);
1563
1564 zdb_count_block(spa, zcb, bp, type);
1565
1566 /*
1567 * if we do metadata-only checksumming there's no need to checksum
1568 * indirect blocks here because it is done during traverse
1569 */
1570 is_l0_metadata = (BP_GET_LEVEL(bp) == 0 && type < DMU_OT_NUMTYPES &&
1571 dmu_ot[type].ot_metadata);
1572
1573 if (dump_opt['c'] > 1 || dump_opt['S'] ||
1574 (dump_opt['c'] && is_l0_metadata)) {
1575 int ioerr, size;
1576 void *data;
1577
1578 size = BP_GET_LSIZE(bp);
1579 data = malloc(size);
1580 ioerr = zio_wait(zio_read(NULL, spa, bp, data, size,
1581 NULL, NULL, ZIO_PRIORITY_ASYNC_READ,
1582 ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB, zb));
1583 free(data);
1584
1585 /* We expect io errors on intent log */
1586 if (ioerr && type != DMU_OT_INTENT_LOG) {
1587 zcb->zcb_haderrors = 1;
1588 zcb->zcb_errors[ioerr]++;
1589
1590 if (dump_opt['b'] >= 2)
1591 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp);
1592 else
1593 blkbuf[0] = '\0';
1594
1595 if (!dump_opt['S']) {
1596 (void) printf("zdb_blkptr_cb: "
1597 "Got error %d reading "
1598 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
1599 ioerr,
1600 (u_longlong_t)zb->zb_objset,
1601 (u_longlong_t)zb->zb_object,
1602 (u_longlong_t)zb->zb_level,
1603 (u_longlong_t)zb->zb_blkid,
1604 blkbuf);
1605 }
1606 }
1607 }
1608
1609 zcb->zcb_readfails = 0;
1610
1611 if (dump_opt['b'] >= 4) {
1612 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp);
1613 (void) printf("objset %llu object %llu offset 0x%llx %s\n",
1614 (u_longlong_t)zb->zb_objset,
1615 (u_longlong_t)zb->zb_object,
1616 (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid),
1617 blkbuf);
1618 }
1619
1620 return (0);
1621 }
1622
1623 static int
1624 dump_block_stats(spa_t *spa)
1625 {
1626 zdb_cb_t zcb = { 0 };
1627 zdb_blkstats_t *zb, *tzb;
1628 uint64_t alloc, space, logalloc;
1629 vdev_t *rvd = spa->spa_root_vdev;
1630 int leaks = 0;
1631 int c, e;
1632
1633 if (!dump_opt['S']) {
1634 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n",
1635 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
1636 (dump_opt['c'] == 1) ? "metadata " : "",
1637 dump_opt['c'] ? "checksums " : "",
1638 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
1639 !dump_opt['L'] ? "nothing leaked " : "");
1640 }
1641
1642 /*
1643 * Load all space maps as SM_ALLOC maps, then traverse the pool
1644 * claiming each block we discover. If the pool is perfectly
1645 * consistent, the space maps will be empty when we're done.
1646 * Anything left over is a leak; any block we can't claim (because
1647 * it's not part of any space map) is a double allocation,
1648 * reference to a freed block, or an unclaimed log block.
1649 */
1650 if (!dump_opt['L'])
1651 zdb_leak_init(spa);
1652
1653 /*
1654 * If there's a deferred-free bplist, process that first.
1655 */
1656 if (spa->spa_sync_bplist_obj != 0) {
1657 bplist_t *bpl = &spa->spa_sync_bplist;
1658 blkptr_t blk;
1659 uint64_t itor = 0;
1660
1661 VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset,
1662 spa->spa_sync_bplist_obj));
1663
1664 while (bplist_iterate(bpl, &itor, &blk) == 0) {
1665 if (dump_opt['b'] >= 4) {
1666 char blkbuf[BP_SPRINTF_LEN];
1667 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk);
1668 (void) printf("[%s] %s\n",
1669 "deferred free", blkbuf);
1670 }
1671 zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED);
1672 }
1673
1674 bplist_close(bpl);
1675 }
1676
1677 zcb.zcb_haderrors |= traverse_pool(spa, zdb_blkptr_cb, &zcb);
1678
1679 if (zcb.zcb_haderrors && !dump_opt['S']) {
1680 (void) printf("\nError counts:\n\n");
1681 (void) printf("\t%5s %s\n", "errno", "count");
1682 for (e = 0; e < 256; e++) {
1683 if (zcb.zcb_errors[e] != 0) {
1684 (void) printf("\t%5d %llu\n",
1685 e, (u_longlong_t)zcb.zcb_errors[e]);
1686 }
1687 }
1688 }
1689
1690 /*
1691 * Report any leaked segments.
1692 */
1693 if (!dump_opt['L'])
1694 zdb_leak_fini(spa);
1695
1696 /*
1697 * If we're interested in printing out the blkptr signatures,
1698 * return now as we don't print out anything else (including
1699 * errors and leaks).
1700 */
1701 if (dump_opt['S'])
1702 return (zcb.zcb_haderrors ? 3 : 0);
1703
1704 alloc = spa_get_alloc(spa);
1705 space = spa_get_space(spa);
1706
1707 /*
1708 * Log blocks allocated from a separate log device don't count
1709 * as part of the normal pool space; factor them in here.
1710 */
1711 logalloc = 0;
1712
1713 for (c = 0; c < rvd->vdev_children; c++)
1714 if (rvd->vdev_child[c]->vdev_islog)
1715 logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc;
1716
1717 tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL];
1718
1719 if (tzb->zb_asize == alloc + logalloc) {
1720 if (!dump_opt['L'])
1721 (void) printf("\n\tNo leaks (block sum matches space"
1722 " maps exactly)\n");
1723 } else {
1724 (void) printf("block traversal size %llu != alloc %llu "
1725 "(%s %lld)\n",
1726 (u_longlong_t)tzb->zb_asize,
1727 (u_longlong_t)alloc + logalloc,
1728 (dump_opt['L']) ? "unreachable" : "leaked",
1729 (longlong_t)(alloc + logalloc - tzb->zb_asize));
1730 leaks = 1;
1731 }
1732
1733 if (tzb->zb_count == 0)
1734 return (2);
1735
1736 (void) printf("\n");
1737 (void) printf("\tbp count: %10llu\n",
1738 (u_longlong_t)tzb->zb_count);
1739 (void) printf("\tbp logical: %10llu\t avg: %6llu\n",
1740 (u_longlong_t)tzb->zb_lsize,
1741 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
1742 (void) printf("\tbp physical: %10llu\t avg:"
1743 " %6llu\tcompression: %6.2f\n",
1744 (u_longlong_t)tzb->zb_psize,
1745 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
1746 (double)tzb->zb_lsize / tzb->zb_psize);
1747 (void) printf("\tbp allocated: %10llu\t avg:"
1748 " %6llu\tcompression: %6.2f\n",
1749 (u_longlong_t)tzb->zb_asize,
1750 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
1751 (double)tzb->zb_lsize / tzb->zb_asize);
1752 (void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n",
1753 (u_longlong_t)alloc, 100.0 * alloc / space);
1754
1755 if (dump_opt['b'] >= 2) {
1756 int l, t, level;
1757 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
1758 "\t avg\t comp\t%%Total\tType\n");
1759
1760 for (t = 0; t <= DMU_OT_NUMTYPES; t++) {
1761 char csize[6], lsize[6], psize[6], asize[6], avg[6];
1762 char *typename;
1763
1764 typename = t == DMU_OT_DEFERRED ? "deferred free" :
1765 t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name;
1766
1767 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
1768 (void) printf("%6s\t%5s\t%5s\t%5s"
1769 "\t%5s\t%5s\t%6s\t%s\n",
1770 "-",
1771 "-",
1772 "-",
1773 "-",
1774 "-",
1775 "-",
1776 "-",
1777 typename);
1778 continue;
1779 }
1780
1781 for (l = ZB_TOTAL - 1; l >= -1; l--) {
1782 level = (l == -1 ? ZB_TOTAL : l);
1783 zb = &zcb.zcb_type[level][t];
1784
1785 if (zb->zb_asize == 0)
1786 continue;
1787
1788 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
1789 continue;
1790
1791 if (level == 0 && zb->zb_asize ==
1792 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
1793 continue;
1794
1795 nicenum(zb->zb_count, csize);
1796 nicenum(zb->zb_lsize, lsize);
1797 nicenum(zb->zb_psize, psize);
1798 nicenum(zb->zb_asize, asize);
1799 nicenum(zb->zb_asize / zb->zb_count, avg);
1800
1801 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
1802 "\t%5.2f\t%6.2f\t",
1803 csize, lsize, psize, asize, avg,
1804 (double)zb->zb_lsize / zb->zb_psize,
1805 100.0 * zb->zb_asize / tzb->zb_asize);
1806
1807 if (level == ZB_TOTAL)
1808 (void) printf("%s\n", typename);
1809 else
1810 (void) printf(" L%d %s\n",
1811 level, typename);
1812 }
1813 }
1814 }
1815
1816 (void) printf("\n");
1817
1818 if (leaks)
1819 return (2);
1820
1821 if (zcb.zcb_haderrors)
1822 return (3);
1823
1824 return (0);
1825 }
1826
1827 static void
1828 dump_zpool(spa_t *spa)
1829 {
1830 dsl_pool_t *dp = spa_get_dsl(spa);
1831 int rc = 0;
1832
1833 if (dump_opt['u'])
1834 dump_uberblock(&spa->spa_uberblock);
1835
1836 if (dump_opt['d'] || dump_opt['i'] || dump_opt['m']) {
1837 dump_dir(dp->dp_meta_objset);
1838 if (dump_opt['d'] >= 3) {
1839 dump_bplist(dp->dp_meta_objset,
1840 spa->spa_sync_bplist_obj, "Deferred frees");
1841 dump_dtl(spa->spa_root_vdev, 0);
1842 }
1843
1844 if (dump_opt['d'] >= 3 || dump_opt['m'])
1845 dump_metaslabs(spa);
1846
1847 (void) dmu_objset_find(spa_name(spa), dump_one_dir, NULL,
1848 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
1849 }
1850
1851 if (dump_opt['b'] || dump_opt['c'] || dump_opt['S'])
1852 rc = dump_block_stats(spa);
1853
1854 if (dump_opt['s'])
1855 show_pool_stats(spa);
1856
1857 if (rc != 0)
1858 exit(rc);
1859 }
1860
1861 #define ZDB_FLAG_CHECKSUM 0x0001
1862 #define ZDB_FLAG_DECOMPRESS 0x0002
1863 #define ZDB_FLAG_BSWAP 0x0004
1864 #define ZDB_FLAG_GBH 0x0008
1865 #define ZDB_FLAG_INDIRECT 0x0010
1866 #define ZDB_FLAG_PHYS 0x0020
1867 #define ZDB_FLAG_RAW 0x0040
1868 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
1869
1870 int flagbits[256];
1871
1872 static void
1873 zdb_print_blkptr(blkptr_t *bp, int flags)
1874 {
1875 dva_t *dva = bp->blk_dva;
1876 int d;
1877
1878 if (flags & ZDB_FLAG_BSWAP)
1879 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
1880 /*
1881 * Super-ick warning: This code is also duplicated in
1882 * cmd/mdb/common/modules/zfs/zfs.c . Yeah, I hate code
1883 * replication, too.
1884 */
1885 for (d = 0; d < BP_GET_NDVAS(bp); d++) {
1886 (void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d,
1887 (longlong_t)DVA_GET_VDEV(&dva[d]),
1888 (longlong_t)DVA_GET_OFFSET(&dva[d]));
1889 (void) printf("\tDVA[%d]: GANG: %-5s GRID: %04llx\t"
1890 "ASIZE: %llx\n", d,
1891 DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE",
1892 (longlong_t)DVA_GET_GRID(&dva[d]),
1893 (longlong_t)DVA_GET_ASIZE(&dva[d]));
1894 (void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d,
1895 (u_longlong_t)DVA_GET_VDEV(&dva[d]),
1896 (longlong_t)DVA_GET_OFFSET(&dva[d]),
1897 (longlong_t)BP_GET_PSIZE(bp),
1898 BP_SHOULD_BYTESWAP(bp) ? "e" : "",
1899 !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ?
1900 "d" : "",
1901 DVA_GET_GANG(&dva[d]) ? "g" : "",
1902 BP_GET_COMPRESS(bp) != 0 ? "d" : "");
1903 }
1904 (void) printf("\tLSIZE: %-16llx\t\tPSIZE: %llx\n",
1905 (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp));
1906 (void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE: %s\n",
1907 BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG",
1908 dmu_ot[BP_GET_TYPE(bp)].ot_name);
1909 (void) printf("\tBIRTH: %-16llx LEVEL: %-2llu\tFILL: %llx\n",
1910 (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp),
1911 (u_longlong_t)bp->blk_fill);
1912 (void) printf("\tCKFUNC: %-16s\t\tCOMP: %s\n",
1913 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name,
1914 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name);
1915 (void) printf("\tCKSUM: %llx:%llx:%llx:%llx\n",
1916 (u_longlong_t)bp->blk_cksum.zc_word[0],
1917 (u_longlong_t)bp->blk_cksum.zc_word[1],
1918 (u_longlong_t)bp->blk_cksum.zc_word[2],
1919 (u_longlong_t)bp->blk_cksum.zc_word[3]);
1920 }
1921
1922 static void
1923 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
1924 {
1925 int i;
1926
1927 for (i = 0; i < nbps; i++)
1928 zdb_print_blkptr(&bp[i], flags);
1929 }
1930
1931 static void
1932 zdb_dump_gbh(void *buf, int flags)
1933 {
1934 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
1935 }
1936
1937 static void
1938 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
1939 {
1940 if (flags & ZDB_FLAG_BSWAP)
1941 byteswap_uint64_array(buf, size);
1942 (void) write(2, buf, size);
1943 }
1944
1945 static void
1946 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
1947 {
1948 uint64_t *d = (uint64_t *)buf;
1949 int nwords = size / sizeof (uint64_t);
1950 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
1951 int i, j;
1952 char *hdr, *c;
1953
1954
1955 if (do_bswap)
1956 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
1957 else
1958 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
1959
1960 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
1961
1962 for (i = 0; i < nwords; i += 2) {
1963 (void) printf("%06llx: %016llx %016llx ",
1964 (u_longlong_t)(i * sizeof (uint64_t)),
1965 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
1966 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
1967
1968 c = (char *)&d[i];
1969 for (j = 0; j < 2 * sizeof (uint64_t); j++)
1970 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
1971 (void) printf("\n");
1972 }
1973 }
1974
1975 /*
1976 * There are two acceptable formats:
1977 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
1978 * child[.child]* - For example: 0.1.1
1979 *
1980 * The second form can be used to specify arbitrary vdevs anywhere
1981 * in the heirarchy. For example, in a pool with a mirror of
1982 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
1983 */
1984 static vdev_t *
1985 zdb_vdev_lookup(vdev_t *vdev, char *path)
1986 {
1987 char *s, *p, *q;
1988 int i;
1989
1990 if (vdev == NULL)
1991 return (NULL);
1992
1993 /* First, assume the x.x.x.x format */
1994 i = (int)strtoul(path, &s, 10);
1995 if (s == path || (s && *s != '.' && *s != '\0'))
1996 goto name;
1997 if (i < 0 || i >= vdev->vdev_children)
1998 return (NULL);
1999
2000 vdev = vdev->vdev_child[i];
2001 if (*s == '\0')
2002 return (vdev);
2003 return (zdb_vdev_lookup(vdev, s+1));
2004
2005 name:
2006 for (i = 0; i < vdev->vdev_children; i++) {
2007 vdev_t *vc = vdev->vdev_child[i];
2008
2009 if (vc->vdev_path == NULL) {
2010 vc = zdb_vdev_lookup(vc, path);
2011 if (vc == NULL)
2012 continue;
2013 else
2014 return (vc);
2015 }
2016
2017 p = strrchr(vc->vdev_path, '/');
2018 p = p ? p + 1 : vc->vdev_path;
2019 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
2020
2021 if (strcmp(vc->vdev_path, path) == 0)
2022 return (vc);
2023 if (strcmp(p, path) == 0)
2024 return (vc);
2025 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
2026 return (vc);
2027 }
2028
2029 return (NULL);
2030 }
2031
2032 /*
2033 * Read a block from a pool and print it out. The syntax of the
2034 * block descriptor is:
2035 *
2036 * pool:vdev_specifier:offset:size[:flags]
2037 *
2038 * pool - The name of the pool you wish to read from
2039 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
2040 * offset - offset, in hex, in bytes
2041 * size - Amount of data to read, in hex, in bytes
2042 * flags - A string of characters specifying options
2043 * b: Decode a blkptr at given offset within block
2044 * *c: Calculate and display checksums
2045 * *d: Decompress data before dumping
2046 * e: Byteswap data before dumping
2047 * *g: Display data as a gang block header
2048 * *i: Display as an indirect block
2049 * p: Do I/O to physical offset
2050 * r: Dump raw data to stdout
2051 *
2052 * * = not yet implemented
2053 */
2054 static void
2055 zdb_read_block(char *thing, spa_t **spap)
2056 {
2057 spa_t *spa = *spap;
2058 int flags = 0;
2059 uint64_t offset = 0, size = 0, blkptr_offset = 0;
2060 zio_t *zio;
2061 vdev_t *vd;
2062 void *buf;
2063 char *s, *p, *dup, *pool, *vdev, *flagstr;
2064 int i, error, zio_flags;
2065
2066 dup = strdup(thing);
2067 s = strtok(dup, ":");
2068 pool = s ? s : "";
2069 s = strtok(NULL, ":");
2070 vdev = s ? s : "";
2071 s = strtok(NULL, ":");
2072 offset = strtoull(s ? s : "", NULL, 16);
2073 s = strtok(NULL, ":");
2074 size = strtoull(s ? s : "", NULL, 16);
2075 s = strtok(NULL, ":");
2076 flagstr = s ? s : "";
2077
2078 s = NULL;
2079 if (size == 0)
2080 s = "size must not be zero";
2081 if (!IS_P2ALIGNED(size, DEV_BSIZE))
2082 s = "size must be a multiple of sector size";
2083 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
2084 s = "offset must be a multiple of sector size";
2085 if (s) {
2086 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
2087 free(dup);
2088 return;
2089 }
2090
2091 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
2092 for (i = 0; flagstr[i]; i++) {
2093 int bit = flagbits[(uchar_t)flagstr[i]];
2094
2095 if (bit == 0) {
2096 (void) printf("***Invalid flag: %c\n",
2097 flagstr[i]);
2098 continue;
2099 }
2100 flags |= bit;
2101
2102 /* If it's not something with an argument, keep going */
2103 if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS |
2104 ZDB_FLAG_PRINT_BLKPTR)) == 0)
2105 continue;
2106
2107 p = &flagstr[i + 1];
2108 if (bit == ZDB_FLAG_PRINT_BLKPTR)
2109 blkptr_offset = strtoull(p, &p, 16);
2110 if (*p != ':' && *p != '\0') {
2111 (void) printf("***Invalid flag arg: '%s'\n", s);
2112 free(dup);
2113 return;
2114 }
2115 }
2116 }
2117
2118 if (spa == NULL || strcmp(spa_name(spa), pool) != 0) {
2119 if (spa)
2120 spa_close(spa, (void *)zdb_read_block);
2121 error = spa_open(pool, spap, (void *)zdb_read_block);
2122 if (error)
2123 fatal("Failed to open pool '%s': %s",
2124 pool, strerror(error));
2125 spa = *spap;
2126 }
2127
2128 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
2129 if (vd == NULL) {
2130 (void) printf("***Invalid vdev: %s\n", vdev);
2131 free(dup);
2132 return;
2133 } else {
2134 if (vd->vdev_path)
2135 (void) printf("Found vdev: %s\n", vd->vdev_path);
2136 else
2137 (void) printf("Found vdev type: %s\n",
2138 vd->vdev_ops->vdev_op_type);
2139 }
2140
2141 buf = umem_alloc(size, UMEM_NOFAIL);
2142
2143 zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
2144 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY;
2145
2146 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
2147 zio = zio_root(spa, NULL, NULL, 0);
2148 /* XXX todo - cons up a BP so RAID-Z will be happy */
2149 zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size,
2150 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL));
2151 error = zio_wait(zio);
2152 spa_config_exit(spa, SCL_STATE, FTAG);
2153
2154 if (error) {
2155 (void) printf("Read of %s failed, error: %d\n", thing, error);
2156 goto out;
2157 }
2158
2159 if (flags & ZDB_FLAG_PRINT_BLKPTR)
2160 zdb_print_blkptr((blkptr_t *)(void *)
2161 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
2162 else if (flags & ZDB_FLAG_RAW)
2163 zdb_dump_block_raw(buf, size, flags);
2164 else if (flags & ZDB_FLAG_INDIRECT)
2165 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
2166 flags);
2167 else if (flags & ZDB_FLAG_GBH)
2168 zdb_dump_gbh(buf, flags);
2169 else
2170 zdb_dump_block(thing, buf, size, flags);
2171
2172 out:
2173 umem_free(buf, size);
2174 free(dup);
2175 }
2176
2177 static boolean_t
2178 nvlist_string_match(nvlist_t *config, char *name, char *tgt)
2179 {
2180 char *s;
2181
2182 if (nvlist_lookup_string(config, name, &s) != 0)
2183 return (B_FALSE);
2184
2185 return (strcmp(s, tgt) == 0);
2186 }
2187
2188 static boolean_t
2189 nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt)
2190 {
2191 uint64_t val;
2192
2193 if (nvlist_lookup_uint64(config, name, &val) != 0)
2194 return (B_FALSE);
2195
2196 return (val == tgt);
2197 }
2198
2199 static boolean_t
2200 vdev_child_guid_match(nvlist_t *vdev, uint64_t guid)
2201 {
2202 nvlist_t **child;
2203 uint_t c, children;
2204
2205 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN,
2206 &child, &children) == 0);
2207 for (c = 0; c < children; ++c)
2208 if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid))
2209 return (B_TRUE);
2210 return (B_FALSE);
2211 }
2212
2213 static boolean_t
2214 vdev_child_string_match(nvlist_t *vdev, char *tgt)
2215 {
2216 nvlist_t **child;
2217 uint_t c, children;
2218
2219 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN,
2220 &child, &children) == 0);
2221 for (c = 0; c < children; ++c) {
2222 if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) ||
2223 nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt))
2224 return (B_TRUE);
2225 }
2226 return (B_FALSE);
2227 }
2228
2229 static boolean_t
2230 vdev_guid_match(nvlist_t *config, uint64_t guid)
2231 {
2232 nvlist_t *nvroot;
2233
2234 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2235 &nvroot) == 0);
2236
2237 return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) ||
2238 vdev_child_guid_match(nvroot, guid));
2239 }
2240
2241 static boolean_t
2242 vdev_string_match(nvlist_t *config, char *tgt)
2243 {
2244 nvlist_t *nvroot;
2245
2246 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2247 &nvroot) == 0);
2248
2249 return (vdev_child_string_match(nvroot, tgt));
2250 }
2251
2252 static boolean_t
2253 pool_match(nvlist_t *config, char *tgt)
2254 {
2255 uint64_t guid = strtoull(tgt, NULL, 0);
2256
2257 if (guid != 0) {
2258 return (
2259 nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) ||
2260 vdev_guid_match(config, guid));
2261 } else {
2262 return (
2263 nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) ||
2264 vdev_string_match(config, tgt));
2265 }
2266 }
2267
2268 static int
2269 find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir)
2270 {
2271 nvlist_t *pools;
2272 int error = ENOENT;
2273 nvlist_t *match = NULL;
2274
2275 if (vdev_dir != NULL)
2276 pools = zpool_find_import_activeok(g_zfs, 1, &vdev_dir);
2277 else
2278 pools = zpool_find_import_activeok(g_zfs, 0, NULL);
2279
2280 if (pools != NULL) {
2281 nvpair_t *elem = NULL;
2282
2283 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
2284 verify(nvpair_value_nvlist(elem, configp) == 0);
2285 if (pool_match(*configp, pool_id)) {
2286 if (match != NULL) {
2287 (void) fatal(
2288 "More than one matching pool - "
2289 "specify guid/devid/device path.");
2290 } else {
2291 match = *configp;
2292 error = 0;
2293 }
2294 }
2295 }
2296 }
2297
2298 *configp = error ? NULL : match;
2299
2300 return (error);
2301 }
2302
2303 int
2304 main(int argc, char **argv)
2305 {
2306 int i, c;
2307 struct rlimit rl = { 1024, 1024 };
2308 spa_t *spa;
2309 objset_t *os = NULL;
2310 char *endstr;
2311 int dump_all = 1;
2312 int verbose = 0;
2313 int error;
2314 int exported = 0;
2315 char *vdev_dir = NULL;
2316
2317 (void) setrlimit(RLIMIT_NOFILE, &rl);
2318 (void) enable_extended_FILE_stdio(-1, -1);
2319
2320 dprintf_setup(&argc, argv);
2321
2322 while ((c = getopt(argc, argv, "udibcmsvCLS:U:lRep:t:")) != -1) {
2323 switch (c) {
2324 case 'u':
2325 case 'd':
2326 case 'i':
2327 case 'b':
2328 case 'c':
2329 case 'm':
2330 case 's':
2331 case 'C':
2332 case 'l':
2333 case 'R':
2334 dump_opt[c]++;
2335 dump_all = 0;
2336 break;
2337 case 'L':
2338 dump_opt[c]++;
2339 break;
2340 case 'v':
2341 verbose++;
2342 break;
2343 case 'U':
2344 spa_config_path = optarg;
2345 break;
2346 case 'e':
2347 exported = 1;
2348 break;
2349 case 'p':
2350 vdev_dir = optarg;
2351 break;
2352 case 'S':
2353 dump_opt[c]++;
2354 dump_all = 0;
2355 zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0);
2356 if (!zdb_sig_user_data && strncmp(optarg, "all:", 4))
2357 usage();
2358 endstr = strchr(optarg, ':') + 1;
2359 if (strcmp(endstr, "fletcher2") == 0)
2360 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2;
2361 else if (strcmp(endstr, "fletcher4") == 0)
2362 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4;
2363 else if (strcmp(endstr, "sha256") == 0)
2364 zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256;
2365 else if (strcmp(endstr, "all") == 0)
2366 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2;
2367 else
2368 usage();
2369 break;
2370 case 't':
2371 ub_max_txg = strtoull(optarg, NULL, 0);
2372 if (ub_max_txg < TXG_INITIAL) {
2373 (void) fprintf(stderr, "incorrect txg "
2374 "specified: %s\n", optarg);
2375 usage();
2376 }
2377 break;
2378 default:
2379 usage();
2380 break;
2381 }
2382 }
2383
2384 if (vdev_dir != NULL && exported == 0) {
2385 (void) fprintf(stderr, "-p option requires use of -e\n");
2386 usage();
2387 }
2388
2389 kernel_init(FREAD);
2390 g_zfs = libzfs_init();
2391 ASSERT(g_zfs != NULL);
2392
2393 for (c = 0; c < 256; c++) {
2394 if (dump_all && c != 'l' && c != 'R')
2395 dump_opt[c] = 1;
2396 if (dump_opt[c])
2397 dump_opt[c] += verbose;
2398 }
2399
2400 argc -= optind;
2401 argv += optind;
2402
2403 if (argc < 1) {
2404 if (dump_opt['C']) {
2405 dump_cachefile(spa_config_path);
2406 return (0);
2407 }
2408 usage();
2409 }
2410
2411 if (dump_opt['l']) {
2412 dump_label(argv[0]);
2413 return (0);
2414 }
2415
2416 if (dump_opt['R']) {
2417 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
2418 flagbits['c'] = ZDB_FLAG_CHECKSUM;
2419 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
2420 flagbits['e'] = ZDB_FLAG_BSWAP;
2421 flagbits['g'] = ZDB_FLAG_GBH;
2422 flagbits['i'] = ZDB_FLAG_INDIRECT;
2423 flagbits['p'] = ZDB_FLAG_PHYS;
2424 flagbits['r'] = ZDB_FLAG_RAW;
2425
2426 spa = NULL;
2427 while (argv[0]) {
2428 zdb_read_block(argv[0], &spa);
2429 argv++;
2430 argc--;
2431 }
2432 if (spa)
2433 spa_close(spa, (void *)zdb_read_block);
2434 return (0);
2435 }
2436
2437 if (dump_opt['C'])
2438 dump_config(argv[0]);
2439
2440 error = 0;
2441 if (exported) {
2442 /*
2443 * Check to see if the name refers to an exported zpool
2444 */
2445 char *slash;
2446 nvlist_t *exported_conf = NULL;
2447
2448 if ((slash = strchr(argv[0], '/')) != NULL)
2449 *slash = '\0';
2450
2451 error = find_exported_zpool(argv[0], &exported_conf, vdev_dir);
2452 if (error == 0) {
2453 nvlist_t *nvl = NULL;
2454
2455 if (vdev_dir != NULL) {
2456 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
2457 error = ENOMEM;
2458 else if (nvlist_add_string(nvl,
2459 zpool_prop_to_name(ZPOOL_PROP_ALTROOT),
2460 vdev_dir) != 0)
2461 error = ENOMEM;
2462 }
2463
2464 if (error == 0)
2465 error = spa_import_verbatim(argv[0],
2466 exported_conf, nvl);
2467
2468 nvlist_free(nvl);
2469 }
2470
2471 if (slash != NULL)
2472 *slash = '/';
2473 }
2474
2475 if (error == 0) {
2476 if (strchr(argv[0], '/') != NULL) {
2477 error = dmu_objset_open(argv[0], DMU_OST_ANY,
2478 DS_MODE_USER | DS_MODE_READONLY, &os);
2479 } else {
2480 error = spa_open(argv[0], &spa, FTAG);
2481 }
2482 }
2483
2484 if (error)
2485 fatal("can't open %s: %s", argv[0], strerror(error));
2486
2487 argv++;
2488 if (--argc > 0) {
2489 zopt_objects = argc;
2490 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
2491 for (i = 0; i < zopt_objects; i++) {
2492 errno = 0;
2493 zopt_object[i] = strtoull(argv[i], NULL, 0);
2494 if (zopt_object[i] == 0 && errno != 0)
2495 fatal("bad object number %s: %s",
2496 argv[i], strerror(errno));
2497 }
2498 }
2499
2500 if (os != NULL) {
2501 dump_dir(os);
2502 dmu_objset_close(os);
2503 } else {
2504 dump_zpool(spa);
2505 spa_close(spa, FTAG);
2506 }
2507
2508 fuid_table_destroy();
2509
2510 libzfs_fini(g_zfs);
2511 kernel_fini();
2512
2513 return (0);
2514 }
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