1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2012 by Delphix. All rights reserved.
25 */
26
27 #include <stdio.h>
28 #include <stdio_ext.h>
29 #include <stdlib.h>
30 #include <ctype.h>
31 #include <sys/zfs_context.h>
32 #include <sys/spa.h>
33 #include <sys/spa_impl.h>
34 #include <sys/dmu.h>
35 #include <sys/zap.h>
36 #include <sys/fs/zfs.h>
37 #include <sys/zfs_znode.h>
38 #include <sys/zfs_sa.h>
39 #include <sys/sa.h>
40 #include <sys/sa_impl.h>
41 #include <sys/vdev.h>
42 #include <sys/vdev_impl.h>
43 #include <sys/metaslab_impl.h>
44 #include <sys/dmu_objset.h>
45 #include <sys/dsl_dir.h>
46 #include <sys/dsl_dataset.h>
47 #include <sys/dsl_pool.h>
48 #include <sys/dbuf.h>
49 #include <sys/zil.h>
50 #include <sys/zil_impl.h>
51 #include <sys/stat.h>
52 #include <sys/resource.h>
53 #include <sys/dmu_traverse.h>
54 #include <sys/zio_checksum.h>
55 #include <sys/zio_compress.h>
56 #include <sys/zfs_fuid.h>
57 #include <sys/arc.h>
58 #include <sys/ddt.h>
59 #include <sys/zfeature.h>
60 #undef ZFS_MAXNAMELEN
61 #undef verify
62 #include <libzfs.h>
63
64 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
65 zio_compress_table[(idx)].ci_name : "UNKNOWN")
66 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
67 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
68 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
69 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
70 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
71 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : DMU_OT_NUMTYPES)
72
73 #ifndef lint
74 extern int zfs_recover;
75 #else
76 int zfs_recover;
77 #endif
78
79 const char cmdname[] = "zdb";
80 uint8_t dump_opt[256];
81
82 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
83
84 extern void dump_intent_log(zilog_t *);
85 uint64_t *zopt_object = NULL;
86 int zopt_objects = 0;
87 libzfs_handle_t *g_zfs;
88
89 /*
90 * These libumem hooks provide a reasonable set of defaults for the allocator's
91 * debugging facilities.
92 */
93 const char *
94 _umem_debug_init()
95 {
96 return ("default,verbose"); /* $UMEM_DEBUG setting */
97 }
98
99 const char *
100 _umem_logging_init(void)
101 {
102 return ("fail,contents"); /* $UMEM_LOGGING setting */
103 }
104
105 static void
106 usage(void)
107 {
108 (void) fprintf(stderr,
109 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
110 "poolname [object...]\n"
111 " %s [-divPA] [-e -p path...] dataset [object...]\n"
112 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] "
113 "poolname [vdev [metaslab...]]\n"
114 " %s -R [-A] [-e [-p path...]] poolname "
115 "vdev:offset:size[:flags]\n"
116 " %s -S [-PA] [-e [-p path...]] poolname\n"
117 " %s -l [-uA] device\n"
118 " %s -C [-A] [-U config]\n\n",
119 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
120
121 (void) fprintf(stderr, " Dataset name must include at least one "
122 "separator character '/' or '@'\n");
123 (void) fprintf(stderr, " If dataset name is specified, only that "
124 "dataset is dumped\n");
125 (void) fprintf(stderr, " If object numbers are specified, only "
126 "those objects are dumped\n\n");
127 (void) fprintf(stderr, " Options to control amount of output:\n");
128 (void) fprintf(stderr, " -u uberblock\n");
129 (void) fprintf(stderr, " -d dataset(s)\n");
130 (void) fprintf(stderr, " -i intent logs\n");
131 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
132 (void) fprintf(stderr, " -h pool history\n");
133 (void) fprintf(stderr, " -b block statistics\n");
134 (void) fprintf(stderr, " -m metaslabs\n");
135 (void) fprintf(stderr, " -c checksum all metadata (twice for "
136 "all data) blocks\n");
137 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
138 (void) fprintf(stderr, " -D dedup statistics\n");
139 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
140 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
141 (void) fprintf(stderr, " -l dump label contents\n");
142 (void) fprintf(stderr, " -L disable leak tracking (do not "
143 "load spacemaps)\n");
144 (void) fprintf(stderr, " -R read and display block from a "
145 "device\n\n");
146 (void) fprintf(stderr, " Below options are intended for use "
147 "with other options (except -l):\n");
148 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
149 "panic recovery (-AA) or both (-AAA)\n");
150 (void) fprintf(stderr, " -F attempt automatic rewind within "
151 "safe range of transaction groups\n");
152 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
153 "cachefile\n");
154 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
155 "work with dataset)\n");
156 (void) fprintf(stderr, " -e pool is exported/destroyed/"
157 "has altroot/not in a cachefile\n");
158 (void) fprintf(stderr, " -p <path> -- use one or more with "
159 "-e to specify path to vdev dir\n");
160 (void) fprintf(stderr, " -P print numbers in parseable form\n");
161 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
162 "searching for uberblocks\n");
163 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
164 "to make only that option verbose\n");
165 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
166 exit(1);
167 }
168
169 /*
170 * Called for usage errors that are discovered after a call to spa_open(),
171 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
172 */
173
174 static void
175 fatal(const char *fmt, ...)
176 {
177 va_list ap;
178
179 va_start(ap, fmt);
180 (void) fprintf(stderr, "%s: ", cmdname);
181 (void) vfprintf(stderr, fmt, ap);
182 va_end(ap);
183 (void) fprintf(stderr, "\n");
184
185 exit(1);
186 }
187
188 /* ARGSUSED */
189 static void
190 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
191 {
192 nvlist_t *nv;
193 size_t nvsize = *(uint64_t *)data;
194 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
195
196 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
197
198 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
199
200 umem_free(packed, nvsize);
201
202 dump_nvlist(nv, 8);
203
204 nvlist_free(nv);
205 }
206
207 static void
208 zdb_nicenum(uint64_t num, char *buf)
209 {
210 if (dump_opt['P'])
211 (void) sprintf(buf, "%llu", (longlong_t)num);
212 else
213 nicenum(num, buf);
214 }
215
216 const char dump_zap_stars[] = "****************************************";
217 const int dump_zap_width = sizeof (dump_zap_stars) - 1;
218
219 static void
220 dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE])
221 {
222 int i;
223 int minidx = ZAP_HISTOGRAM_SIZE - 1;
224 int maxidx = 0;
225 uint64_t max = 0;
226
227 for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) {
228 if (histo[i] > max)
229 max = histo[i];
230 if (histo[i] > 0 && i > maxidx)
231 maxidx = i;
232 if (histo[i] > 0 && i < minidx)
233 minidx = i;
234 }
235
236 if (max < dump_zap_width)
237 max = dump_zap_width;
238
239 for (i = minidx; i <= maxidx; i++)
240 (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i],
241 &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]);
242 }
243
244 static void
245 dump_zap_stats(objset_t *os, uint64_t object)
246 {
247 int error;
248 zap_stats_t zs;
249
250 error = zap_get_stats(os, object, &zs);
251 if (error)
252 return;
253
254 if (zs.zs_ptrtbl_len == 0) {
255 ASSERT(zs.zs_num_blocks == 1);
256 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
257 (u_longlong_t)zs.zs_blocksize,
258 (u_longlong_t)zs.zs_num_entries);
259 return;
260 }
261
262 (void) printf("\tFat ZAP stats:\n");
263
264 (void) printf("\t\tPointer table:\n");
265 (void) printf("\t\t\t%llu elements\n",
266 (u_longlong_t)zs.zs_ptrtbl_len);
267 (void) printf("\t\t\tzt_blk: %llu\n",
268 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
269 (void) printf("\t\t\tzt_numblks: %llu\n",
270 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
271 (void) printf("\t\t\tzt_shift: %llu\n",
272 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
273 (void) printf("\t\t\tzt_blks_copied: %llu\n",
274 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
275 (void) printf("\t\t\tzt_nextblk: %llu\n",
276 (u_longlong_t)zs.zs_ptrtbl_nextblk);
277
278 (void) printf("\t\tZAP entries: %llu\n",
279 (u_longlong_t)zs.zs_num_entries);
280 (void) printf("\t\tLeaf blocks: %llu\n",
281 (u_longlong_t)zs.zs_num_leafs);
282 (void) printf("\t\tTotal blocks: %llu\n",
283 (u_longlong_t)zs.zs_num_blocks);
284 (void) printf("\t\tzap_block_type: 0x%llx\n",
285 (u_longlong_t)zs.zs_block_type);
286 (void) printf("\t\tzap_magic: 0x%llx\n",
287 (u_longlong_t)zs.zs_magic);
288 (void) printf("\t\tzap_salt: 0x%llx\n",
289 (u_longlong_t)zs.zs_salt);
290
291 (void) printf("\t\tLeafs with 2^n pointers:\n");
292 dump_zap_histogram(zs.zs_leafs_with_2n_pointers);
293
294 (void) printf("\t\tBlocks with n*5 entries:\n");
295 dump_zap_histogram(zs.zs_blocks_with_n5_entries);
296
297 (void) printf("\t\tBlocks n/10 full:\n");
298 dump_zap_histogram(zs.zs_blocks_n_tenths_full);
299
300 (void) printf("\t\tEntries with n chunks:\n");
301 dump_zap_histogram(zs.zs_entries_using_n_chunks);
302
303 (void) printf("\t\tBuckets with n entries:\n");
304 dump_zap_histogram(zs.zs_buckets_with_n_entries);
305 }
306
307 /*ARGSUSED*/
308 static void
309 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
310 {
311 }
312
313 /*ARGSUSED*/
314 static void
315 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
316 {
317 (void) printf("\tUNKNOWN OBJECT TYPE\n");
318 }
319
320 /*ARGSUSED*/
321 void
322 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
323 {
324 }
325
326 /*ARGSUSED*/
327 static void
328 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
329 {
330 }
331
332 /*ARGSUSED*/
333 static void
334 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
335 {
336 zap_cursor_t zc;
337 zap_attribute_t attr;
338 void *prop;
339 int i;
340
341 dump_zap_stats(os, object);
342 (void) printf("\n");
343
344 for (zap_cursor_init(&zc, os, object);
345 zap_cursor_retrieve(&zc, &attr) == 0;
346 zap_cursor_advance(&zc)) {
347 (void) printf("\t\t%s = ", attr.za_name);
348 if (attr.za_num_integers == 0) {
349 (void) printf("\n");
350 continue;
351 }
352 prop = umem_zalloc(attr.za_num_integers *
353 attr.za_integer_length, UMEM_NOFAIL);
354 (void) zap_lookup(os, object, attr.za_name,
355 attr.za_integer_length, attr.za_num_integers, prop);
356 if (attr.za_integer_length == 1) {
357 (void) printf("%s", (char *)prop);
358 } else {
359 for (i = 0; i < attr.za_num_integers; i++) {
360 switch (attr.za_integer_length) {
361 case 2:
362 (void) printf("%u ",
363 ((uint16_t *)prop)[i]);
364 break;
365 case 4:
366 (void) printf("%u ",
367 ((uint32_t *)prop)[i]);
368 break;
369 case 8:
370 (void) printf("%lld ",
371 (u_longlong_t)((int64_t *)prop)[i]);
372 break;
373 }
374 }
375 }
376 (void) printf("\n");
377 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
378 }
379 zap_cursor_fini(&zc);
380 }
381
382 /*ARGSUSED*/
383 static void
384 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
385 {
386 dump_zap_stats(os, object);
387 /* contents are printed elsewhere, properly decoded */
388 }
389
390 /*ARGSUSED*/
391 static void
392 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
393 {
394 zap_cursor_t zc;
395 zap_attribute_t attr;
396
397 dump_zap_stats(os, object);
398 (void) printf("\n");
399
400 for (zap_cursor_init(&zc, os, object);
401 zap_cursor_retrieve(&zc, &attr) == 0;
402 zap_cursor_advance(&zc)) {
403 (void) printf("\t\t%s = ", attr.za_name);
404 if (attr.za_num_integers == 0) {
405 (void) printf("\n");
406 continue;
407 }
408 (void) printf(" %llx : [%d:%d:%d]\n",
409 (u_longlong_t)attr.za_first_integer,
410 (int)ATTR_LENGTH(attr.za_first_integer),
411 (int)ATTR_BSWAP(attr.za_first_integer),
412 (int)ATTR_NUM(attr.za_first_integer));
413 }
414 zap_cursor_fini(&zc);
415 }
416
417 /*ARGSUSED*/
418 static void
419 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
420 {
421 zap_cursor_t zc;
422 zap_attribute_t attr;
423 uint16_t *layout_attrs;
424 int i;
425
426 dump_zap_stats(os, object);
427 (void) printf("\n");
428
429 for (zap_cursor_init(&zc, os, object);
430 zap_cursor_retrieve(&zc, &attr) == 0;
431 zap_cursor_advance(&zc)) {
432 (void) printf("\t\t%s = [", attr.za_name);
433 if (attr.za_num_integers == 0) {
434 (void) printf("\n");
435 continue;
436 }
437
438 VERIFY(attr.za_integer_length == 2);
439 layout_attrs = umem_zalloc(attr.za_num_integers *
440 attr.za_integer_length, UMEM_NOFAIL);
441
442 VERIFY(zap_lookup(os, object, attr.za_name,
443 attr.za_integer_length,
444 attr.za_num_integers, layout_attrs) == 0);
445
446 for (i = 0; i != attr.za_num_integers; i++)
447 (void) printf(" %d ", (int)layout_attrs[i]);
448 (void) printf("]\n");
449 umem_free(layout_attrs,
450 attr.za_num_integers * attr.za_integer_length);
451 }
452 zap_cursor_fini(&zc);
453 }
454
455 /*ARGSUSED*/
456 static void
457 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
458 {
459 zap_cursor_t zc;
460 zap_attribute_t attr;
461 const char *typenames[] = {
462 /* 0 */ "not specified",
463 /* 1 */ "FIFO",
464 /* 2 */ "Character Device",
465 /* 3 */ "3 (invalid)",
466 /* 4 */ "Directory",
467 /* 5 */ "5 (invalid)",
468 /* 6 */ "Block Device",
469 /* 7 */ "7 (invalid)",
470 /* 8 */ "Regular File",
471 /* 9 */ "9 (invalid)",
472 /* 10 */ "Symbolic Link",
473 /* 11 */ "11 (invalid)",
474 /* 12 */ "Socket",
475 /* 13 */ "Door",
476 /* 14 */ "Event Port",
477 /* 15 */ "15 (invalid)",
478 };
479
480 dump_zap_stats(os, object);
481 (void) printf("\n");
482
483 for (zap_cursor_init(&zc, os, object);
484 zap_cursor_retrieve(&zc, &attr) == 0;
485 zap_cursor_advance(&zc)) {
486 (void) printf("\t\t%s = %lld (type: %s)\n",
487 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
488 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
489 }
490 zap_cursor_fini(&zc);
491 }
492
493 static void
494 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm)
495 {
496 uint64_t alloc, offset, entry;
497 uint8_t mapshift = sm->sm_shift;
498 uint64_t mapstart = sm->sm_start;
499 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
500 "INVALID", "INVALID", "INVALID", "INVALID" };
501
502 if (smo->smo_object == 0)
503 return;
504
505 /*
506 * Print out the freelist entries in both encoded and decoded form.
507 */
508 alloc = 0;
509 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) {
510 VERIFY3U(0, ==, dmu_read(os, smo->smo_object, offset,
511 sizeof (entry), &entry, DMU_READ_PREFETCH));
512 if (SM_DEBUG_DECODE(entry)) {
513 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
514 (u_longlong_t)(offset / sizeof (entry)),
515 ddata[SM_DEBUG_ACTION_DECODE(entry)],
516 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
517 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
518 } else {
519 (void) printf("\t [%6llu] %c range:"
520 " %010llx-%010llx size: %06llx\n",
521 (u_longlong_t)(offset / sizeof (entry)),
522 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
523 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
524 mapshift) + mapstart),
525 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
526 mapshift) + mapstart + (SM_RUN_DECODE(entry) <<
527 mapshift)),
528 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
529 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
530 alloc += SM_RUN_DECODE(entry) << mapshift;
531 else
532 alloc -= SM_RUN_DECODE(entry) << mapshift;
533 }
534 }
535 if (alloc != smo->smo_alloc) {
536 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
537 "with space map summary (%llu)\n",
538 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc);
539 }
540 }
541
542 static void
543 dump_metaslab_stats(metaslab_t *msp)
544 {
545 char maxbuf[32];
546 space_map_t *sm = &msp->ms_map;
547 avl_tree_t *t = sm->sm_pp_root;
548 int free_pct = sm->sm_space * 100 / sm->sm_size;
549
550 zdb_nicenum(space_map_maxsize(sm), maxbuf);
551
552 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
553 "segments", avl_numnodes(t), "maxsize", maxbuf,
554 "freepct", free_pct);
555 }
556
557 static void
558 dump_metaslab(metaslab_t *msp)
559 {
560 vdev_t *vd = msp->ms_group->mg_vd;
561 spa_t *spa = vd->vdev_spa;
562 space_map_t *sm = &msp->ms_map;
563 space_map_obj_t *smo = &msp->ms_smo;
564 char freebuf[32];
565
566 zdb_nicenum(sm->sm_size - smo->smo_alloc, freebuf);
567
568 (void) printf(
569 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
570 (u_longlong_t)(sm->sm_start / sm->sm_size),
571 (u_longlong_t)sm->sm_start, (u_longlong_t)smo->smo_object, freebuf);
572
573 if (dump_opt['m'] > 1 && !dump_opt['L']) {
574 mutex_enter(&msp->ms_lock);
575 space_map_load_wait(sm);
576 if (!sm->sm_loaded)
577 VERIFY(space_map_load(sm, zfs_metaslab_ops,
578 SM_FREE, smo, spa->spa_meta_objset) == 0);
579 dump_metaslab_stats(msp);
580 space_map_unload(sm);
581 mutex_exit(&msp->ms_lock);
582 }
583
584 if (dump_opt['d'] > 5 || dump_opt['m'] > 2) {
585 ASSERT(sm->sm_size == (1ULL << vd->vdev_ms_shift));
586
587 mutex_enter(&msp->ms_lock);
588 dump_spacemap(spa->spa_meta_objset, smo, sm);
589 mutex_exit(&msp->ms_lock);
590 }
591 }
592
593 static void
594 print_vdev_metaslab_header(vdev_t *vd)
595 {
596 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
597 (u_longlong_t)vd->vdev_id,
598 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
599 "offset", "spacemap", "free");
600 (void) printf("\t%15s %19s %15s %10s\n",
601 "---------------", "-------------------",
602 "---------------", "-------------");
603 }
604
605 static void
606 dump_metaslabs(spa_t *spa)
607 {
608 vdev_t *vd, *rvd = spa->spa_root_vdev;
609 uint64_t m, c = 0, children = rvd->vdev_children;
610
611 (void) printf("\nMetaslabs:\n");
612
613 if (!dump_opt['d'] && zopt_objects > 0) {
614 c = zopt_object[0];
615
616 if (c >= children)
617 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
618
619 if (zopt_objects > 1) {
620 vd = rvd->vdev_child[c];
621 print_vdev_metaslab_header(vd);
622
623 for (m = 1; m < zopt_objects; m++) {
624 if (zopt_object[m] < vd->vdev_ms_count)
625 dump_metaslab(
626 vd->vdev_ms[zopt_object[m]]);
627 else
628 (void) fprintf(stderr, "bad metaslab "
629 "number %llu\n",
630 (u_longlong_t)zopt_object[m]);
631 }
632 (void) printf("\n");
633 return;
634 }
635 children = c + 1;
636 }
637 for (; c < children; c++) {
638 vd = rvd->vdev_child[c];
639 print_vdev_metaslab_header(vd);
640
641 for (m = 0; m < vd->vdev_ms_count; m++)
642 dump_metaslab(vd->vdev_ms[m]);
643 (void) printf("\n");
644 }
645 }
646
647 static void
648 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
649 {
650 const ddt_phys_t *ddp = dde->dde_phys;
651 const ddt_key_t *ddk = &dde->dde_key;
652 char *types[4] = { "ditto", "single", "double", "triple" };
653 char blkbuf[BP_SPRINTF_LEN];
654 blkptr_t blk;
655
656 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
657 if (ddp->ddp_phys_birth == 0)
658 continue;
659 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
660 sprintf_blkptr(blkbuf, &blk);
661 (void) printf("index %llx refcnt %llu %s %s\n",
662 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
663 types[p], blkbuf);
664 }
665 }
666
667 static void
668 dump_dedup_ratio(const ddt_stat_t *dds)
669 {
670 double rL, rP, rD, D, dedup, compress, copies;
671
672 if (dds->dds_blocks == 0)
673 return;
674
675 rL = (double)dds->dds_ref_lsize;
676 rP = (double)dds->dds_ref_psize;
677 rD = (double)dds->dds_ref_dsize;
678 D = (double)dds->dds_dsize;
679
680 dedup = rD / D;
681 compress = rL / rP;
682 copies = rD / rP;
683
684 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
685 "dedup * compress / copies = %.2f\n\n",
686 dedup, compress, copies, dedup * compress / copies);
687 }
688
689 static void
690 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
691 {
692 char name[DDT_NAMELEN];
693 ddt_entry_t dde;
694 uint64_t walk = 0;
695 dmu_object_info_t doi;
696 uint64_t count, dspace, mspace;
697 int error;
698
699 error = ddt_object_info(ddt, type, class, &doi);
700
701 if (error == ENOENT)
702 return;
703 ASSERT(error == 0);
704
705 if ((count = ddt_object_count(ddt, type, class)) == 0)
706 return;
707
708 dspace = doi.doi_physical_blocks_512 << 9;
709 mspace = doi.doi_fill_count * doi.doi_data_block_size;
710
711 ddt_object_name(ddt, type, class, name);
712
713 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
714 name,
715 (u_longlong_t)count,
716 (u_longlong_t)(dspace / count),
717 (u_longlong_t)(mspace / count));
718
719 if (dump_opt['D'] < 3)
720 return;
721
722 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
723
724 if (dump_opt['D'] < 4)
725 return;
726
727 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
728 return;
729
730 (void) printf("%s contents:\n\n", name);
731
732 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
733 dump_dde(ddt, &dde, walk);
734
735 ASSERT(error == ENOENT);
736
737 (void) printf("\n");
738 }
739
740 static void
741 dump_all_ddts(spa_t *spa)
742 {
743 ddt_histogram_t ddh_total = { 0 };
744 ddt_stat_t dds_total = { 0 };
745
746 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
747 ddt_t *ddt = spa->spa_ddt[c];
748 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
749 for (enum ddt_class class = 0; class < DDT_CLASSES;
750 class++) {
751 dump_ddt(ddt, type, class);
752 }
753 }
754 }
755
756 ddt_get_dedup_stats(spa, &dds_total);
757
758 if (dds_total.dds_blocks == 0) {
759 (void) printf("All DDTs are empty\n");
760 return;
761 }
762
763 (void) printf("\n");
764
765 if (dump_opt['D'] > 1) {
766 (void) printf("DDT histogram (aggregated over all DDTs):\n");
767 ddt_get_dedup_histogram(spa, &ddh_total);
768 zpool_dump_ddt(&dds_total, &ddh_total);
769 }
770
771 dump_dedup_ratio(&dds_total);
772 }
773
774 static void
775 dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size)
776 {
777 char *prefix = (void *)sm;
778
779 (void) printf("%s [%llu,%llu) length %llu\n",
780 prefix,
781 (u_longlong_t)start,
782 (u_longlong_t)(start + size),
783 (u_longlong_t)(size));
784 }
785
786 static void
787 dump_dtl(vdev_t *vd, int indent)
788 {
789 spa_t *spa = vd->vdev_spa;
790 boolean_t required;
791 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
792 char prefix[256];
793
794 spa_vdev_state_enter(spa, SCL_NONE);
795 required = vdev_dtl_required(vd);
796 (void) spa_vdev_state_exit(spa, NULL, 0);
797
798 if (indent == 0)
799 (void) printf("\nDirty time logs:\n\n");
800
801 (void) printf("\t%*s%s [%s]\n", indent, "",
802 vd->vdev_path ? vd->vdev_path :
803 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
804 required ? "DTL-required" : "DTL-expendable");
805
806 for (int t = 0; t < DTL_TYPES; t++) {
807 space_map_t *sm = &vd->vdev_dtl[t];
808 if (sm->sm_space == 0)
809 continue;
810 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
811 indent + 2, "", name[t]);
812 mutex_enter(sm->sm_lock);
813 space_map_walk(sm, dump_dtl_seg, (void *)prefix);
814 mutex_exit(sm->sm_lock);
815 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
816 dump_spacemap(spa->spa_meta_objset,
817 &vd->vdev_dtl_smo, sm);
818 }
819
820 for (int c = 0; c < vd->vdev_children; c++)
821 dump_dtl(vd->vdev_child[c], indent + 4);
822 }
823
824 static void
825 dump_history(spa_t *spa)
826 {
827 nvlist_t **events = NULL;
828 char buf[SPA_MAXBLOCKSIZE];
829 uint64_t resid, len, off = 0;
830 uint_t num = 0;
831 int error;
832 time_t tsec;
833 struct tm t;
834 char tbuf[30];
835 char internalstr[MAXPATHLEN];
836
837 do {
838 len = sizeof (buf);
839
840 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
841 (void) fprintf(stderr, "Unable to read history: "
842 "error %d\n", error);
843 return;
844 }
845
846 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
847 break;
848
849 off -= resid;
850 } while (len != 0);
851
852 (void) printf("\nHistory:\n");
853 for (int i = 0; i < num; i++) {
854 uint64_t time, txg, ievent;
855 char *cmd, *intstr;
856
857 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
858 &time) != 0)
859 continue;
860 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
861 &cmd) != 0) {
862 if (nvlist_lookup_uint64(events[i],
863 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
864 continue;
865 verify(nvlist_lookup_uint64(events[i],
866 ZPOOL_HIST_TXG, &txg) == 0);
867 verify(nvlist_lookup_string(events[i],
868 ZPOOL_HIST_INT_STR, &intstr) == 0);
869 if (ievent >= LOG_END)
870 continue;
871
872 (void) snprintf(internalstr,
873 sizeof (internalstr),
874 "[internal %s txg:%lld] %s",
875 zfs_history_event_names[ievent], txg,
876 intstr);
877 cmd = internalstr;
878 }
879 tsec = time;
880 (void) localtime_r(&tsec, &t);
881 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
882 (void) printf("%s %s\n", tbuf, cmd);
883 }
884 }
885
886 /*ARGSUSED*/
887 static void
888 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
889 {
890 }
891
892 static uint64_t
893 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb)
894 {
895 if (dnp == NULL) {
896 ASSERT(zb->zb_level < 0);
897 if (zb->zb_object == 0)
898 return (zb->zb_blkid);
899 return (zb->zb_blkid * BP_GET_LSIZE(bp));
900 }
901
902 ASSERT(zb->zb_level >= 0);
903
904 return ((zb->zb_blkid <<
905 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
906 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
907 }
908
909 static void
910 sprintf_blkptr_compact(char *blkbuf, const blkptr_t *bp)
911 {
912 const dva_t *dva = bp->blk_dva;
913 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
914
915 if (dump_opt['b'] >= 5) {
916 sprintf_blkptr(blkbuf, bp);
917 return;
918 }
919
920 blkbuf[0] = '\0';
921
922 for (int i = 0; i < ndvas; i++)
923 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ",
924 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
925 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
926 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
927
928 (void) sprintf(blkbuf + strlen(blkbuf),
929 "%llxL/%llxP F=%llu B=%llu/%llu",
930 (u_longlong_t)BP_GET_LSIZE(bp),
931 (u_longlong_t)BP_GET_PSIZE(bp),
932 (u_longlong_t)bp->blk_fill,
933 (u_longlong_t)bp->blk_birth,
934 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
935 }
936
937 static void
938 print_indirect(blkptr_t *bp, const zbookmark_t *zb,
939 const dnode_phys_t *dnp)
940 {
941 char blkbuf[BP_SPRINTF_LEN];
942 int l;
943
944 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
945 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
946
947 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
948
949 ASSERT(zb->zb_level >= 0);
950
951 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
952 if (l == zb->zb_level) {
953 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
954 } else {
955 (void) printf(" ");
956 }
957 }
958
959 sprintf_blkptr_compact(blkbuf, bp);
960 (void) printf("%s\n", blkbuf);
961 }
962
963 static int
964 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
965 blkptr_t *bp, const zbookmark_t *zb)
966 {
967 int err = 0;
968
969 if (bp->blk_birth == 0)
970 return (0);
971
972 print_indirect(bp, zb, dnp);
973
974 if (BP_GET_LEVEL(bp) > 0) {
975 uint32_t flags = ARC_WAIT;
976 int i;
977 blkptr_t *cbp;
978 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
979 arc_buf_t *buf;
980 uint64_t fill = 0;
981
982 err = arc_read_nolock(NULL, spa, bp, arc_getbuf_func, &buf,
983 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
984 if (err)
985 return (err);
986 ASSERT(buf->b_data);
987
988 /* recursively visit blocks below this */
989 cbp = buf->b_data;
990 for (i = 0; i < epb; i++, cbp++) {
991 zbookmark_t czb;
992
993 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
994 zb->zb_level - 1,
995 zb->zb_blkid * epb + i);
996 err = visit_indirect(spa, dnp, cbp, &czb);
997 if (err)
998 break;
999 fill += cbp->blk_fill;
1000 }
1001 if (!err)
1002 ASSERT3U(fill, ==, bp->blk_fill);
1003 (void) arc_buf_remove_ref(buf, &buf);
1004 }
1005
1006 return (err);
1007 }
1008
1009 /*ARGSUSED*/
1010 static void
1011 dump_indirect(dnode_t *dn)
1012 {
1013 dnode_phys_t *dnp = dn->dn_phys;
1014 int j;
1015 zbookmark_t czb;
1016
1017 (void) printf("Indirect blocks:\n");
1018
1019 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1020 dn->dn_object, dnp->dn_nlevels - 1, 0);
1021 for (j = 0; j < dnp->dn_nblkptr; j++) {
1022 czb.zb_blkid = j;
1023 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1024 &dnp->dn_blkptr[j], &czb);
1025 }
1026
1027 (void) printf("\n");
1028 }
1029
1030 /*ARGSUSED*/
1031 static void
1032 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1033 {
1034 dsl_dir_phys_t *dd = data;
1035 time_t crtime;
1036 char nice[32];
1037
1038 if (dd == NULL)
1039 return;
1040
1041 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1042
1043 crtime = dd->dd_creation_time;
1044 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1045 (void) printf("\t\thead_dataset_obj = %llu\n",
1046 (u_longlong_t)dd->dd_head_dataset_obj);
1047 (void) printf("\t\tparent_dir_obj = %llu\n",
1048 (u_longlong_t)dd->dd_parent_obj);
1049 (void) printf("\t\torigin_obj = %llu\n",
1050 (u_longlong_t)dd->dd_origin_obj);
1051 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1052 (u_longlong_t)dd->dd_child_dir_zapobj);
1053 zdb_nicenum(dd->dd_used_bytes, nice);
1054 (void) printf("\t\tused_bytes = %s\n", nice);
1055 zdb_nicenum(dd->dd_compressed_bytes, nice);
1056 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1057 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1058 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1059 zdb_nicenum(dd->dd_quota, nice);
1060 (void) printf("\t\tquota = %s\n", nice);
1061 zdb_nicenum(dd->dd_reserved, nice);
1062 (void) printf("\t\treserved = %s\n", nice);
1063 (void) printf("\t\tprops_zapobj = %llu\n",
1064 (u_longlong_t)dd->dd_props_zapobj);
1065 (void) printf("\t\tdeleg_zapobj = %llu\n",
1066 (u_longlong_t)dd->dd_deleg_zapobj);
1067 (void) printf("\t\tflags = %llx\n",
1068 (u_longlong_t)dd->dd_flags);
1069
1070 #define DO(which) \
1071 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1072 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1073 DO(HEAD);
1074 DO(SNAP);
1075 DO(CHILD);
1076 DO(CHILD_RSRV);
1077 DO(REFRSRV);
1078 #undef DO
1079 }
1080
1081 /*ARGSUSED*/
1082 static void
1083 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1084 {
1085 dsl_dataset_phys_t *ds = data;
1086 time_t crtime;
1087 char used[32], compressed[32], uncompressed[32], unique[32];
1088 char blkbuf[BP_SPRINTF_LEN];
1089
1090 if (ds == NULL)
1091 return;
1092
1093 ASSERT(size == sizeof (*ds));
1094 crtime = ds->ds_creation_time;
1095 zdb_nicenum(ds->ds_referenced_bytes, used);
1096 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1097 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1098 zdb_nicenum(ds->ds_unique_bytes, unique);
1099 sprintf_blkptr(blkbuf, &ds->ds_bp);
1100
1101 (void) printf("\t\tdir_obj = %llu\n",
1102 (u_longlong_t)ds->ds_dir_obj);
1103 (void) printf("\t\tprev_snap_obj = %llu\n",
1104 (u_longlong_t)ds->ds_prev_snap_obj);
1105 (void) printf("\t\tprev_snap_txg = %llu\n",
1106 (u_longlong_t)ds->ds_prev_snap_txg);
1107 (void) printf("\t\tnext_snap_obj = %llu\n",
1108 (u_longlong_t)ds->ds_next_snap_obj);
1109 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1110 (u_longlong_t)ds->ds_snapnames_zapobj);
1111 (void) printf("\t\tnum_children = %llu\n",
1112 (u_longlong_t)ds->ds_num_children);
1113 (void) printf("\t\tuserrefs_obj = %llu\n",
1114 (u_longlong_t)ds->ds_userrefs_obj);
1115 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1116 (void) printf("\t\tcreation_txg = %llu\n",
1117 (u_longlong_t)ds->ds_creation_txg);
1118 (void) printf("\t\tdeadlist_obj = %llu\n",
1119 (u_longlong_t)ds->ds_deadlist_obj);
1120 (void) printf("\t\tused_bytes = %s\n", used);
1121 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1122 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1123 (void) printf("\t\tunique = %s\n", unique);
1124 (void) printf("\t\tfsid_guid = %llu\n",
1125 (u_longlong_t)ds->ds_fsid_guid);
1126 (void) printf("\t\tguid = %llu\n",
1127 (u_longlong_t)ds->ds_guid);
1128 (void) printf("\t\tflags = %llx\n",
1129 (u_longlong_t)ds->ds_flags);
1130 (void) printf("\t\tnext_clones_obj = %llu\n",
1131 (u_longlong_t)ds->ds_next_clones_obj);
1132 (void) printf("\t\tprops_obj = %llu\n",
1133 (u_longlong_t)ds->ds_props_obj);
1134 (void) printf("\t\tbp = %s\n", blkbuf);
1135 }
1136
1137 /* ARGSUSED */
1138 static int
1139 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1140 {
1141 char blkbuf[BP_SPRINTF_LEN];
1142
1143 if (bp->blk_birth != 0) {
1144 sprintf_blkptr(blkbuf, bp);
1145 (void) printf("\t%s\n", blkbuf);
1146 }
1147 return (0);
1148 }
1149
1150 static void
1151 dump_bptree(objset_t *os, uint64_t obj, char *name)
1152 {
1153 char bytes[32];
1154 bptree_phys_t *bt;
1155 dmu_buf_t *db;
1156
1157 if (dump_opt['d'] < 3)
1158 return;
1159
1160 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1161 bt = db->db_data;
1162 zdb_nicenum(bt->bt_bytes, bytes);
1163 (void) printf("\n %s: %llu datasets, %s\n",
1164 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1165 dmu_buf_rele(db, FTAG);
1166
1167 if (dump_opt['d'] < 5)
1168 return;
1169
1170 (void) printf("\n");
1171
1172 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1173 }
1174
1175 /* ARGSUSED */
1176 static int
1177 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1178 {
1179 char blkbuf[BP_SPRINTF_LEN];
1180
1181 ASSERT(bp->blk_birth != 0);
1182 sprintf_blkptr_compact(blkbuf, bp);
1183 (void) printf("\t%s\n", blkbuf);
1184 return (0);
1185 }
1186
1187 static void
1188 dump_bpobj(bpobj_t *bpo, char *name)
1189 {
1190 char bytes[32];
1191 char comp[32];
1192 char uncomp[32];
1193
1194 if (dump_opt['d'] < 3)
1195 return;
1196
1197 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1198 if (bpo->bpo_havesubobj) {
1199 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1200 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1201 (void) printf("\n %s: %llu local blkptrs, %llu subobjs, "
1202 "%s (%s/%s comp)\n",
1203 name, (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1204 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1205 bytes, comp, uncomp);
1206 } else {
1207 (void) printf("\n %s: %llu blkptrs, %s\n",
1208 name, (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, bytes);
1209 }
1210
1211 if (dump_opt['d'] < 5)
1212 return;
1213
1214 (void) printf("\n");
1215
1216 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1217 }
1218
1219 static void
1220 dump_deadlist(dsl_deadlist_t *dl)
1221 {
1222 dsl_deadlist_entry_t *dle;
1223 char bytes[32];
1224 char comp[32];
1225 char uncomp[32];
1226
1227 if (dump_opt['d'] < 3)
1228 return;
1229
1230 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1231 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1232 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1233 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1234 bytes, comp, uncomp);
1235
1236 if (dump_opt['d'] < 4)
1237 return;
1238
1239 (void) printf("\n");
1240
1241 for (dle = avl_first(&dl->dl_tree); dle;
1242 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1243 (void) printf(" mintxg %llu -> obj %llu\n",
1244 (longlong_t)dle->dle_mintxg,
1245 (longlong_t)dle->dle_bpobj.bpo_object);
1246
1247 if (dump_opt['d'] >= 5)
1248 dump_bpobj(&dle->dle_bpobj, "");
1249 }
1250 }
1251
1252 static avl_tree_t idx_tree;
1253 static avl_tree_t domain_tree;
1254 static boolean_t fuid_table_loaded;
1255 static boolean_t sa_loaded;
1256 sa_attr_type_t *sa_attr_table;
1257
1258 static void
1259 fuid_table_destroy()
1260 {
1261 if (fuid_table_loaded) {
1262 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1263 fuid_table_loaded = B_FALSE;
1264 }
1265 }
1266
1267 /*
1268 * print uid or gid information.
1269 * For normal POSIX id just the id is printed in decimal format.
1270 * For CIFS files with FUID the fuid is printed in hex followed by
1271 * the doman-rid string.
1272 */
1273 static void
1274 print_idstr(uint64_t id, const char *id_type)
1275 {
1276 if (FUID_INDEX(id)) {
1277 char *domain;
1278
1279 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1280 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1281 (u_longlong_t)id, domain, (int)FUID_RID(id));
1282 } else {
1283 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1284 }
1285
1286 }
1287
1288 static void
1289 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1290 {
1291 uint32_t uid_idx, gid_idx;
1292
1293 uid_idx = FUID_INDEX(uid);
1294 gid_idx = FUID_INDEX(gid);
1295
1296 /* Load domain table, if not already loaded */
1297 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1298 uint64_t fuid_obj;
1299
1300 /* first find the fuid object. It lives in the master node */
1301 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1302 8, 1, &fuid_obj) == 0);
1303 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1304 (void) zfs_fuid_table_load(os, fuid_obj,
1305 &idx_tree, &domain_tree);
1306 fuid_table_loaded = B_TRUE;
1307 }
1308
1309 print_idstr(uid, "uid");
1310 print_idstr(gid, "gid");
1311 }
1312
1313 /*ARGSUSED*/
1314 static void
1315 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1316 {
1317 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1318 sa_handle_t *hdl;
1319 uint64_t xattr, rdev, gen;
1320 uint64_t uid, gid, mode, fsize, parent, links;
1321 uint64_t pflags;
1322 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1323 time_t z_crtime, z_atime, z_mtime, z_ctime;
1324 sa_bulk_attr_t bulk[12];
1325 int idx = 0;
1326 int error;
1327
1328 if (!sa_loaded) {
1329 uint64_t sa_attrs = 0;
1330 uint64_t version;
1331
1332 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1333 8, 1, &version) == 0);
1334 if (version >= ZPL_VERSION_SA) {
1335 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1336 8, 1, &sa_attrs) == 0);
1337 }
1338 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1339 ZPL_END, &sa_attr_table)) != 0) {
1340 (void) printf("sa_setup failed errno %d, can't "
1341 "display znode contents\n", error);
1342 return;
1343 }
1344 sa_loaded = B_TRUE;
1345 }
1346
1347 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1348 (void) printf("Failed to get handle for SA znode\n");
1349 return;
1350 }
1351
1352 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1353 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1354 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1355 &links, 8);
1356 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1357 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1358 &mode, 8);
1359 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1360 NULL, &parent, 8);
1361 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1362 &fsize, 8);
1363 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1364 acctm, 16);
1365 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1366 modtm, 16);
1367 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1368 crtm, 16);
1369 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1370 chgtm, 16);
1371 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1372 &pflags, 8);
1373
1374 if (sa_bulk_lookup(hdl, bulk, idx)) {
1375 (void) sa_handle_destroy(hdl);
1376 return;
1377 }
1378
1379 error = zfs_obj_to_path(os, object, path, sizeof (path));
1380 if (error != 0) {
1381 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1382 (u_longlong_t)object);
1383 }
1384 if (dump_opt['d'] < 3) {
1385 (void) printf("\t%s\n", path);
1386 (void) sa_handle_destroy(hdl);
1387 return;
1388 }
1389
1390 z_crtime = (time_t)crtm[0];
1391 z_atime = (time_t)acctm[0];
1392 z_mtime = (time_t)modtm[0];
1393 z_ctime = (time_t)chgtm[0];
1394
1395 (void) printf("\tpath %s\n", path);
1396 dump_uidgid(os, uid, gid);
1397 (void) printf("\tatime %s", ctime(&z_atime));
1398 (void) printf("\tmtime %s", ctime(&z_mtime));
1399 (void) printf("\tctime %s", ctime(&z_ctime));
1400 (void) printf("\tcrtime %s", ctime(&z_crtime));
1401 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1402 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1403 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1404 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1405 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1406 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1407 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1408 sizeof (uint64_t)) == 0)
1409 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1410 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1411 sizeof (uint64_t)) == 0)
1412 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1413 sa_handle_destroy(hdl);
1414 }
1415
1416 /*ARGSUSED*/
1417 static void
1418 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1419 {
1420 }
1421
1422 /*ARGSUSED*/
1423 static void
1424 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1425 {
1426 }
1427
1428 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1429 dump_none, /* unallocated */
1430 dump_zap, /* object directory */
1431 dump_uint64, /* object array */
1432 dump_none, /* packed nvlist */
1433 dump_packed_nvlist, /* packed nvlist size */
1434 dump_none, /* bplist */
1435 dump_none, /* bplist header */
1436 dump_none, /* SPA space map header */
1437 dump_none, /* SPA space map */
1438 dump_none, /* ZIL intent log */
1439 dump_dnode, /* DMU dnode */
1440 dump_dmu_objset, /* DMU objset */
1441 dump_dsl_dir, /* DSL directory */
1442 dump_zap, /* DSL directory child map */
1443 dump_zap, /* DSL dataset snap map */
1444 dump_zap, /* DSL props */
1445 dump_dsl_dataset, /* DSL dataset */
1446 dump_znode, /* ZFS znode */
1447 dump_acl, /* ZFS V0 ACL */
1448 dump_uint8, /* ZFS plain file */
1449 dump_zpldir, /* ZFS directory */
1450 dump_zap, /* ZFS master node */
1451 dump_zap, /* ZFS delete queue */
1452 dump_uint8, /* zvol object */
1453 dump_zap, /* zvol prop */
1454 dump_uint8, /* other uint8[] */
1455 dump_uint64, /* other uint64[] */
1456 dump_zap, /* other ZAP */
1457 dump_zap, /* persistent error log */
1458 dump_uint8, /* SPA history */
1459 dump_uint64, /* SPA history offsets */
1460 dump_zap, /* Pool properties */
1461 dump_zap, /* DSL permissions */
1462 dump_acl, /* ZFS ACL */
1463 dump_uint8, /* ZFS SYSACL */
1464 dump_none, /* FUID nvlist */
1465 dump_packed_nvlist, /* FUID nvlist size */
1466 dump_zap, /* DSL dataset next clones */
1467 dump_zap, /* DSL scrub queue */
1468 dump_zap, /* ZFS user/group used */
1469 dump_zap, /* ZFS user/group quota */
1470 dump_zap, /* snapshot refcount tags */
1471 dump_ddt_zap, /* DDT ZAP object */
1472 dump_zap, /* DDT statistics */
1473 dump_znode, /* SA object */
1474 dump_zap, /* SA Master Node */
1475 dump_sa_attrs, /* SA attribute registration */
1476 dump_sa_layouts, /* SA attribute layouts */
1477 dump_zap, /* DSL scrub translations */
1478 dump_none, /* fake dedup BP */
1479 dump_zap, /* deadlist */
1480 dump_none, /* deadlist hdr */
1481 dump_zap, /* dsl clones */
1482 dump_none, /* bpobj subobjs */
1483 dump_unknown, /* Unknown type, must be last */
1484 };
1485
1486 static void
1487 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1488 {
1489 dmu_buf_t *db = NULL;
1490 dmu_object_info_t doi;
1491 dnode_t *dn;
1492 void *bonus = NULL;
1493 size_t bsize = 0;
1494 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1495 char bonus_size[32];
1496 char aux[50];
1497 int error;
1498
1499 if (*print_header) {
1500 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1501 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1502 "%full", "type");
1503 *print_header = 0;
1504 }
1505
1506 if (object == 0) {
1507 dn = DMU_META_DNODE(os);
1508 } else {
1509 error = dmu_bonus_hold(os, object, FTAG, &db);
1510 if (error)
1511 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1512 object, error);
1513 bonus = db->db_data;
1514 bsize = db->db_size;
1515 dn = DB_DNODE((dmu_buf_impl_t *)db);
1516 }
1517 dmu_object_info_from_dnode(dn, &doi);
1518
1519 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1520 zdb_nicenum(doi.doi_data_block_size, dblk);
1521 zdb_nicenum(doi.doi_max_offset, lsize);
1522 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1523 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1524 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1525 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1526 doi.doi_max_offset);
1527
1528 aux[0] = '\0';
1529
1530 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1531 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1532 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1533 }
1534
1535 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1536 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1537 ZDB_COMPRESS_NAME(doi.doi_compress));
1538 }
1539
1540 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1541 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1542 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1543
1544 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1545 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1546 "", "", "", "", "", bonus_size, "bonus",
1547 ZDB_OT_NAME(doi.doi_bonus_type));
1548 }
1549
1550 if (verbosity >= 4) {
1551 (void) printf("\tdnode flags: %s%s%s\n",
1552 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1553 "USED_BYTES " : "",
1554 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1555 "USERUSED_ACCOUNTED " : "",
1556 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1557 "SPILL_BLKPTR" : "");
1558 (void) printf("\tdnode maxblkid: %llu\n",
1559 (longlong_t)dn->dn_phys->dn_maxblkid);
1560
1561 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1562 bonus, bsize);
1563 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1564 *print_header = 1;
1565 }
1566
1567 if (verbosity >= 5)
1568 dump_indirect(dn);
1569
1570 if (verbosity >= 5) {
1571 /*
1572 * Report the list of segments that comprise the object.
1573 */
1574 uint64_t start = 0;
1575 uint64_t end;
1576 uint64_t blkfill = 1;
1577 int minlvl = 1;
1578
1579 if (dn->dn_type == DMU_OT_DNODE) {
1580 minlvl = 0;
1581 blkfill = DNODES_PER_BLOCK;
1582 }
1583
1584 for (;;) {
1585 char segsize[32];
1586 error = dnode_next_offset(dn,
1587 0, &start, minlvl, blkfill, 0);
1588 if (error)
1589 break;
1590 end = start;
1591 error = dnode_next_offset(dn,
1592 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1593 zdb_nicenum(end - start, segsize);
1594 (void) printf("\t\tsegment [%016llx, %016llx)"
1595 " size %5s\n", (u_longlong_t)start,
1596 (u_longlong_t)end, segsize);
1597 if (error)
1598 break;
1599 start = end;
1600 }
1601 }
1602
1603 if (db != NULL)
1604 dmu_buf_rele(db, FTAG);
1605 }
1606
1607 static char *objset_types[DMU_OST_NUMTYPES] = {
1608 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1609
1610 static void
1611 dump_dir(objset_t *os)
1612 {
1613 dmu_objset_stats_t dds;
1614 uint64_t object, object_count;
1615 uint64_t refdbytes, usedobjs, scratch;
1616 char numbuf[32];
1617 char blkbuf[BP_SPRINTF_LEN + 20];
1618 char osname[MAXNAMELEN];
1619 char *type = "UNKNOWN";
1620 int verbosity = dump_opt['d'];
1621 int print_header = 1;
1622 int i, error;
1623
1624 dmu_objset_fast_stat(os, &dds);
1625
1626 if (dds.dds_type < DMU_OST_NUMTYPES)
1627 type = objset_types[dds.dds_type];
1628
1629 if (dds.dds_type == DMU_OST_META) {
1630 dds.dds_creation_txg = TXG_INITIAL;
1631 usedobjs = os->os_rootbp->blk_fill;
1632 refdbytes = os->os_spa->spa_dsl_pool->
1633 dp_mos_dir->dd_phys->dd_used_bytes;
1634 } else {
1635 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1636 }
1637
1638 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill);
1639
1640 zdb_nicenum(refdbytes, numbuf);
1641
1642 if (verbosity >= 4) {
1643 (void) sprintf(blkbuf, ", rootbp ");
1644 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp);
1645 } else {
1646 blkbuf[0] = '\0';
1647 }
1648
1649 dmu_objset_name(os, osname);
1650
1651 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1652 "%s, %llu objects%s\n",
1653 osname, type, (u_longlong_t)dmu_objset_id(os),
1654 (u_longlong_t)dds.dds_creation_txg,
1655 numbuf, (u_longlong_t)usedobjs, blkbuf);
1656
1657 if (zopt_objects != 0) {
1658 for (i = 0; i < zopt_objects; i++)
1659 dump_object(os, zopt_object[i], verbosity,
1660 &print_header);
1661 (void) printf("\n");
1662 return;
1663 }
1664
1665 if (dump_opt['i'] != 0 || verbosity >= 2)
1666 dump_intent_log(dmu_objset_zil(os));
1667
1668 if (dmu_objset_ds(os) != NULL)
1669 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1670
1671 if (verbosity < 2)
1672 return;
1673
1674 if (os->os_rootbp->blk_birth == 0)
1675 return;
1676
1677 dump_object(os, 0, verbosity, &print_header);
1678 object_count = 0;
1679 if (DMU_USERUSED_DNODE(os) != NULL &&
1680 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1681 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1682 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1683 }
1684
1685 object = 0;
1686 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1687 dump_object(os, object, verbosity, &print_header);
1688 object_count++;
1689 }
1690
1691 ASSERT3U(object_count, ==, usedobjs);
1692
1693 (void) printf("\n");
1694
1695 if (error != ESRCH) {
1696 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1697 abort();
1698 }
1699 }
1700
1701 static void
1702 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
1703 {
1704 time_t timestamp = ub->ub_timestamp;
1705
1706 (void) printf(header ? header : "");
1707 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1708 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1709 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1710 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1711 (void) printf("\ttimestamp = %llu UTC = %s",
1712 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
1713 if (dump_opt['u'] >= 3) {
1714 char blkbuf[BP_SPRINTF_LEN];
1715 sprintf_blkptr(blkbuf, &ub->ub_rootbp);
1716 (void) printf("\trootbp = %s\n", blkbuf);
1717 }
1718 (void) printf(footer ? footer : "");
1719 }
1720
1721 static void
1722 dump_config(spa_t *spa)
1723 {
1724 dmu_buf_t *db;
1725 size_t nvsize = 0;
1726 int error = 0;
1727
1728
1729 error = dmu_bonus_hold(spa->spa_meta_objset,
1730 spa->spa_config_object, FTAG, &db);
1731
1732 if (error == 0) {
1733 nvsize = *(uint64_t *)db->db_data;
1734 dmu_buf_rele(db, FTAG);
1735
1736 (void) printf("\nMOS Configuration:\n");
1737 dump_packed_nvlist(spa->spa_meta_objset,
1738 spa->spa_config_object, (void *)&nvsize, 1);
1739 } else {
1740 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
1741 (u_longlong_t)spa->spa_config_object, error);
1742 }
1743 }
1744
1745 static void
1746 dump_cachefile(const char *cachefile)
1747 {
1748 int fd;
1749 struct stat64 statbuf;
1750 char *buf;
1751 nvlist_t *config;
1752
1753 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1754 (void) printf("cannot open '%s': %s\n", cachefile,
1755 strerror(errno));
1756 exit(1);
1757 }
1758
1759 if (fstat64(fd, &statbuf) != 0) {
1760 (void) printf("failed to stat '%s': %s\n", cachefile,
1761 strerror(errno));
1762 exit(1);
1763 }
1764
1765 if ((buf = malloc(statbuf.st_size)) == NULL) {
1766 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
1767 (u_longlong_t)statbuf.st_size);
1768 exit(1);
1769 }
1770
1771 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1772 (void) fprintf(stderr, "failed to read %llu bytes\n",
1773 (u_longlong_t)statbuf.st_size);
1774 exit(1);
1775 }
1776
1777 (void) close(fd);
1778
1779 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
1780 (void) fprintf(stderr, "failed to unpack nvlist\n");
1781 exit(1);
1782 }
1783
1784 free(buf);
1785
1786 dump_nvlist(config, 0);
1787
1788 nvlist_free(config);
1789 }
1790
1791 #define ZDB_MAX_UB_HEADER_SIZE 32
1792
1793 static void
1794 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
1795 {
1796 vdev_t vd;
1797 vdev_t *vdp = &vd;
1798 char header[ZDB_MAX_UB_HEADER_SIZE];
1799
1800 vd.vdev_ashift = ashift;
1801 vdp->vdev_top = vdp;
1802
1803 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
1804 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
1805 uberblock_t *ub = (void *)((char *)lbl + uoff);
1806
1807 if (uberblock_verify(ub))
1808 continue;
1809 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
1810 "Uberblock[%d]\n", i);
1811 dump_uberblock(ub, header, "");
1812 }
1813 }
1814
1815 static void
1816 dump_label(const char *dev)
1817 {
1818 int fd;
1819 vdev_label_t label;
1820 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
1821 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
1822 struct stat64 statbuf;
1823 uint64_t psize, ashift;
1824 int len = strlen(dev) + 1;
1825
1826 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
1827 len++;
1828 path = malloc(len);
1829 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
1830 } else {
1831 path = strdup(dev);
1832 }
1833
1834 if ((fd = open64(path, O_RDONLY)) < 0) {
1835 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
1836 free(path);
1837 exit(1);
1838 }
1839
1840 if (fstat64(fd, &statbuf) != 0) {
1841 (void) printf("failed to stat '%s': %s\n", path,
1842 strerror(errno));
1843 free(path);
1844 (void) close(fd);
1845 exit(1);
1846 }
1847
1848 if (S_ISBLK(statbuf.st_mode)) {
1849 (void) printf("cannot use '%s': character device required\n",
1850 path);
1851 free(path);
1852 (void) close(fd);
1853 exit(1);
1854 }
1855
1856 psize = statbuf.st_size;
1857 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
1858
1859 for (int l = 0; l < VDEV_LABELS; l++) {
1860 nvlist_t *config = NULL;
1861
1862 (void) printf("--------------------------------------------\n");
1863 (void) printf("LABEL %d\n", l);
1864 (void) printf("--------------------------------------------\n");
1865
1866 if (pread64(fd, &label, sizeof (label),
1867 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
1868 (void) printf("failed to read label %d\n", l);
1869 continue;
1870 }
1871
1872 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
1873 (void) printf("failed to unpack label %d\n", l);
1874 ashift = SPA_MINBLOCKSHIFT;
1875 } else {
1876 nvlist_t *vdev_tree = NULL;
1877
1878 dump_nvlist(config, 4);
1879 if ((nvlist_lookup_nvlist(config,
1880 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
1881 (nvlist_lookup_uint64(vdev_tree,
1882 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
1883 ashift = SPA_MINBLOCKSHIFT;
1884 nvlist_free(config);
1885 }
1886 if (dump_opt['u'])
1887 dump_label_uberblocks(&label, ashift);
1888 }
1889
1890 free(path);
1891 (void) close(fd);
1892 }
1893
1894 /*ARGSUSED*/
1895 static int
1896 dump_one_dir(const char *dsname, void *arg)
1897 {
1898 int error;
1899 objset_t *os;
1900
1901 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
1902 if (error) {
1903 (void) printf("Could not open %s, error %d\n", dsname, error);
1904 return (0);
1905 }
1906 dump_dir(os);
1907 dmu_objset_disown(os, FTAG);
1908 fuid_table_destroy();
1909 sa_loaded = B_FALSE;
1910 return (0);
1911 }
1912
1913 /*
1914 * Block statistics.
1915 */
1916 typedef struct zdb_blkstats {
1917 uint64_t zb_asize;
1918 uint64_t zb_lsize;
1919 uint64_t zb_psize;
1920 uint64_t zb_count;
1921 } zdb_blkstats_t;
1922
1923 /*
1924 * Extended object types to report deferred frees and dedup auto-ditto blocks.
1925 */
1926 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
1927 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
1928 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
1929 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
1930
1931 static char *zdb_ot_extname[] = {
1932 "deferred free",
1933 "dedup ditto",
1934 "other",
1935 "Total",
1936 };
1937
1938 #define ZB_TOTAL DN_MAX_LEVELS
1939
1940 typedef struct zdb_cb {
1941 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
1942 uint64_t zcb_dedup_asize;
1943 uint64_t zcb_dedup_blocks;
1944 uint64_t zcb_errors[256];
1945 int zcb_readfails;
1946 int zcb_haderrors;
1947 spa_t *zcb_spa;
1948 } zdb_cb_t;
1949
1950 static void
1951 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
1952 dmu_object_type_t type)
1953 {
1954 uint64_t refcnt = 0;
1955
1956 ASSERT(type < ZDB_OT_TOTAL);
1957
1958 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
1959 return;
1960
1961 for (int i = 0; i < 4; i++) {
1962 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
1963 int t = (i & 1) ? type : ZDB_OT_TOTAL;
1964 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
1965
1966 zb->zb_asize += BP_GET_ASIZE(bp);
1967 zb->zb_lsize += BP_GET_LSIZE(bp);
1968 zb->zb_psize += BP_GET_PSIZE(bp);
1969 zb->zb_count++;
1970 }
1971
1972 if (dump_opt['L'])
1973 return;
1974
1975 if (BP_GET_DEDUP(bp)) {
1976 ddt_t *ddt;
1977 ddt_entry_t *dde;
1978
1979 ddt = ddt_select(zcb->zcb_spa, bp);
1980 ddt_enter(ddt);
1981 dde = ddt_lookup(ddt, bp, B_FALSE);
1982
1983 if (dde == NULL) {
1984 refcnt = 0;
1985 } else {
1986 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
1987 ddt_phys_decref(ddp);
1988 refcnt = ddp->ddp_refcnt;
1989 if (ddt_phys_total_refcnt(dde) == 0)
1990 ddt_remove(ddt, dde);
1991 }
1992 ddt_exit(ddt);
1993 }
1994
1995 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
1996 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
1997 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
1998 }
1999
2000 /* ARGSUSED */
2001 static int
2002 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, arc_buf_t *pbuf,
2003 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2004 {
2005 zdb_cb_t *zcb = arg;
2006 char blkbuf[BP_SPRINTF_LEN];
2007 dmu_object_type_t type;
2008 boolean_t is_metadata;
2009
2010 if (bp == NULL)
2011 return (0);
2012
2013 type = BP_GET_TYPE(bp);
2014
2015 zdb_count_block(zcb, zilog, bp,
2016 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2017
2018 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2019
2020 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) {
2021 int ioerr;
2022 size_t size = BP_GET_PSIZE(bp);
2023 void *data = malloc(size);
2024 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2025
2026 /* If it's an intent log block, failure is expected. */
2027 if (zb->zb_level == ZB_ZIL_LEVEL)
2028 flags |= ZIO_FLAG_SPECULATIVE;
2029
2030 ioerr = zio_wait(zio_read(NULL, spa, bp, data, size,
2031 NULL, NULL, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2032
2033 free(data);
2034
2035 if (ioerr && !(flags & ZIO_FLAG_SPECULATIVE)) {
2036 zcb->zcb_haderrors = 1;
2037 zcb->zcb_errors[ioerr]++;
2038
2039 if (dump_opt['b'] >= 2)
2040 sprintf_blkptr(blkbuf, bp);
2041 else
2042 blkbuf[0] = '\0';
2043
2044 (void) printf("zdb_blkptr_cb: "
2045 "Got error %d reading "
2046 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2047 ioerr,
2048 (u_longlong_t)zb->zb_objset,
2049 (u_longlong_t)zb->zb_object,
2050 (u_longlong_t)zb->zb_level,
2051 (u_longlong_t)zb->zb_blkid,
2052 blkbuf);
2053 }
2054 }
2055
2056 zcb->zcb_readfails = 0;
2057
2058 if (dump_opt['b'] >= 4) {
2059 sprintf_blkptr(blkbuf, bp);
2060 (void) printf("objset %llu object %llu "
2061 "level %lld offset 0x%llx %s\n",
2062 (u_longlong_t)zb->zb_objset,
2063 (u_longlong_t)zb->zb_object,
2064 (longlong_t)zb->zb_level,
2065 (u_longlong_t)blkid2offset(dnp, bp, zb),
2066 blkbuf);
2067 }
2068
2069 return (0);
2070 }
2071
2072 static void
2073 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size)
2074 {
2075 vdev_t *vd = sm->sm_ppd;
2076
2077 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2078 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2079 }
2080
2081 /* ARGSUSED */
2082 static void
2083 zdb_space_map_load(space_map_t *sm)
2084 {
2085 }
2086
2087 static void
2088 zdb_space_map_unload(space_map_t *sm)
2089 {
2090 space_map_vacate(sm, zdb_leak, sm);
2091 }
2092
2093 /* ARGSUSED */
2094 static void
2095 zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size)
2096 {
2097 }
2098
2099 static space_map_ops_t zdb_space_map_ops = {
2100 zdb_space_map_load,
2101 zdb_space_map_unload,
2102 NULL, /* alloc */
2103 zdb_space_map_claim,
2104 NULL, /* free */
2105 NULL /* maxsize */
2106 };
2107
2108 static void
2109 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2110 {
2111 ddt_bookmark_t ddb = { 0 };
2112 ddt_entry_t dde;
2113 int error;
2114
2115 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2116 blkptr_t blk;
2117 ddt_phys_t *ddp = dde.dde_phys;
2118
2119 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2120 return;
2121
2122 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2123
2124 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2125 if (ddp->ddp_phys_birth == 0)
2126 continue;
2127 ddt_bp_create(ddb.ddb_checksum,
2128 &dde.dde_key, ddp, &blk);
2129 if (p == DDT_PHYS_DITTO) {
2130 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2131 } else {
2132 zcb->zcb_dedup_asize +=
2133 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2134 zcb->zcb_dedup_blocks++;
2135 }
2136 }
2137 if (!dump_opt['L']) {
2138 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2139 ddt_enter(ddt);
2140 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2141 ddt_exit(ddt);
2142 }
2143 }
2144
2145 ASSERT(error == ENOENT);
2146 }
2147
2148 static void
2149 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2150 {
2151 zcb->zcb_spa = spa;
2152
2153 if (!dump_opt['L']) {
2154 vdev_t *rvd = spa->spa_root_vdev;
2155 for (int c = 0; c < rvd->vdev_children; c++) {
2156 vdev_t *vd = rvd->vdev_child[c];
2157 for (int m = 0; m < vd->vdev_ms_count; m++) {
2158 metaslab_t *msp = vd->vdev_ms[m];
2159 mutex_enter(&msp->ms_lock);
2160 space_map_unload(&msp->ms_map);
2161 VERIFY(space_map_load(&msp->ms_map,
2162 &zdb_space_map_ops, SM_ALLOC, &msp->ms_smo,
2163 spa->spa_meta_objset) == 0);
2164 msp->ms_map.sm_ppd = vd;
2165 mutex_exit(&msp->ms_lock);
2166 }
2167 }
2168 }
2169
2170 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2171
2172 zdb_ddt_leak_init(spa, zcb);
2173
2174 spa_config_exit(spa, SCL_CONFIG, FTAG);
2175 }
2176
2177 static void
2178 zdb_leak_fini(spa_t *spa)
2179 {
2180 if (!dump_opt['L']) {
2181 vdev_t *rvd = spa->spa_root_vdev;
2182 for (int c = 0; c < rvd->vdev_children; c++) {
2183 vdev_t *vd = rvd->vdev_child[c];
2184 for (int m = 0; m < vd->vdev_ms_count; m++) {
2185 metaslab_t *msp = vd->vdev_ms[m];
2186 mutex_enter(&msp->ms_lock);
2187 space_map_unload(&msp->ms_map);
2188 mutex_exit(&msp->ms_lock);
2189 }
2190 }
2191 }
2192 }
2193
2194 /* ARGSUSED */
2195 static int
2196 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2197 {
2198 zdb_cb_t *zcb = arg;
2199
2200 if (dump_opt['b'] >= 4) {
2201 char blkbuf[BP_SPRINTF_LEN];
2202 sprintf_blkptr(blkbuf, bp);
2203 (void) printf("[%s] %s\n",
2204 "deferred free", blkbuf);
2205 }
2206 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2207 return (0);
2208 }
2209
2210 static int
2211 dump_block_stats(spa_t *spa)
2212 {
2213 zdb_cb_t zcb = { 0 };
2214 zdb_blkstats_t *zb, *tzb;
2215 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2216 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2217 int leaks = 0;
2218
2219 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n",
2220 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2221 (dump_opt['c'] == 1) ? "metadata " : "",
2222 dump_opt['c'] ? "checksums " : "",
2223 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2224 !dump_opt['L'] ? "nothing leaked " : "");
2225
2226 /*
2227 * Load all space maps as SM_ALLOC maps, then traverse the pool
2228 * claiming each block we discover. If the pool is perfectly
2229 * consistent, the space maps will be empty when we're done.
2230 * Anything left over is a leak; any block we can't claim (because
2231 * it's not part of any space map) is a double allocation,
2232 * reference to a freed block, or an unclaimed log block.
2233 */
2234 zdb_leak_init(spa, &zcb);
2235
2236 /*
2237 * If there's a deferred-free bplist, process that first.
2238 */
2239 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2240 count_block_cb, &zcb, NULL);
2241 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2242 count_block_cb, &zcb, NULL);
2243 if (spa_feature_is_active(spa,
2244 &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) {
2245 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2246 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2247 &zcb, NULL));
2248 }
2249
2250 if (dump_opt['c'] > 1)
2251 flags |= TRAVERSE_PREFETCH_DATA;
2252
2253 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2254
2255 if (zcb.zcb_haderrors) {
2256 (void) printf("\nError counts:\n\n");
2257 (void) printf("\t%5s %s\n", "errno", "count");
2258 for (int e = 0; e < 256; e++) {
2259 if (zcb.zcb_errors[e] != 0) {
2260 (void) printf("\t%5d %llu\n",
2261 e, (u_longlong_t)zcb.zcb_errors[e]);
2262 }
2263 }
2264 }
2265
2266 /*
2267 * Report any leaked segments.
2268 */
2269 zdb_leak_fini(spa);
2270
2271 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2272
2273 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2274 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2275
2276 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2277 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2278
2279 if (total_found == total_alloc) {
2280 if (!dump_opt['L'])
2281 (void) printf("\n\tNo leaks (block sum matches space"
2282 " maps exactly)\n");
2283 } else {
2284 (void) printf("block traversal size %llu != alloc %llu "
2285 "(%s %lld)\n",
2286 (u_longlong_t)total_found,
2287 (u_longlong_t)total_alloc,
2288 (dump_opt['L']) ? "unreachable" : "leaked",
2289 (longlong_t)(total_alloc - total_found));
2290 leaks = 1;
2291 }
2292
2293 if (tzb->zb_count == 0)
2294 return (2);
2295
2296 (void) printf("\n");
2297 (void) printf("\tbp count: %10llu\n",
2298 (u_longlong_t)tzb->zb_count);
2299 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2300 (u_longlong_t)tzb->zb_lsize,
2301 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2302 (void) printf("\tbp physical: %10llu avg:"
2303 " %6llu compression: %6.2f\n",
2304 (u_longlong_t)tzb->zb_psize,
2305 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2306 (double)tzb->zb_lsize / tzb->zb_psize);
2307 (void) printf("\tbp allocated: %10llu avg:"
2308 " %6llu compression: %6.2f\n",
2309 (u_longlong_t)tzb->zb_asize,
2310 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2311 (double)tzb->zb_lsize / tzb->zb_asize);
2312 (void) printf("\tbp deduped: %10llu ref>1:"
2313 " %6llu deduplication: %6.2f\n",
2314 (u_longlong_t)zcb.zcb_dedup_asize,
2315 (u_longlong_t)zcb.zcb_dedup_blocks,
2316 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2317 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2318 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2319
2320 if (dump_opt['b'] >= 2) {
2321 int l, t, level;
2322 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2323 "\t avg\t comp\t%%Total\tType\n");
2324
2325 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2326 char csize[32], lsize[32], psize[32], asize[32];
2327 char avg[32];
2328 char *typename;
2329
2330 if (t < DMU_OT_NUMTYPES)
2331 typename = dmu_ot[t].ot_name;
2332 else
2333 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2334
2335 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2336 (void) printf("%6s\t%5s\t%5s\t%5s"
2337 "\t%5s\t%5s\t%6s\t%s\n",
2338 "-",
2339 "-",
2340 "-",
2341 "-",
2342 "-",
2343 "-",
2344 "-",
2345 typename);
2346 continue;
2347 }
2348
2349 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2350 level = (l == -1 ? ZB_TOTAL : l);
2351 zb = &zcb.zcb_type[level][t];
2352
2353 if (zb->zb_asize == 0)
2354 continue;
2355
2356 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2357 continue;
2358
2359 if (level == 0 && zb->zb_asize ==
2360 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2361 continue;
2362
2363 zdb_nicenum(zb->zb_count, csize);
2364 zdb_nicenum(zb->zb_lsize, lsize);
2365 zdb_nicenum(zb->zb_psize, psize);
2366 zdb_nicenum(zb->zb_asize, asize);
2367 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2368
2369 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2370 "\t%5.2f\t%6.2f\t",
2371 csize, lsize, psize, asize, avg,
2372 (double)zb->zb_lsize / zb->zb_psize,
2373 100.0 * zb->zb_asize / tzb->zb_asize);
2374
2375 if (level == ZB_TOTAL)
2376 (void) printf("%s\n", typename);
2377 else
2378 (void) printf(" L%d %s\n",
2379 level, typename);
2380 }
2381 }
2382 }
2383
2384 (void) printf("\n");
2385
2386 if (leaks)
2387 return (2);
2388
2389 if (zcb.zcb_haderrors)
2390 return (3);
2391
2392 return (0);
2393 }
2394
2395 typedef struct zdb_ddt_entry {
2396 ddt_key_t zdde_key;
2397 uint64_t zdde_ref_blocks;
2398 uint64_t zdde_ref_lsize;
2399 uint64_t zdde_ref_psize;
2400 uint64_t zdde_ref_dsize;
2401 avl_node_t zdde_node;
2402 } zdb_ddt_entry_t;
2403
2404 /* ARGSUSED */
2405 static int
2406 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2407 arc_buf_t *pbuf, const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2408 {
2409 avl_tree_t *t = arg;
2410 avl_index_t where;
2411 zdb_ddt_entry_t *zdde, zdde_search;
2412
2413 if (bp == NULL)
2414 return (0);
2415
2416 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2417 (void) printf("traversing objset %llu, %llu objects, "
2418 "%lu blocks so far\n",
2419 (u_longlong_t)zb->zb_objset,
2420 (u_longlong_t)bp->blk_fill,
2421 avl_numnodes(t));
2422 }
2423
2424 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2425 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2426 return (0);
2427
2428 ddt_key_fill(&zdde_search.zdde_key, bp);
2429
2430 zdde = avl_find(t, &zdde_search, &where);
2431
2432 if (zdde == NULL) {
2433 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2434 zdde->zdde_key = zdde_search.zdde_key;
2435 avl_insert(t, zdde, where);
2436 }
2437
2438 zdde->zdde_ref_blocks += 1;
2439 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2440 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2441 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2442
2443 return (0);
2444 }
2445
2446 static void
2447 dump_simulated_ddt(spa_t *spa)
2448 {
2449 avl_tree_t t;
2450 void *cookie = NULL;
2451 zdb_ddt_entry_t *zdde;
2452 ddt_histogram_t ddh_total = { 0 };
2453 ddt_stat_t dds_total = { 0 };
2454
2455 avl_create(&t, ddt_entry_compare,
2456 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2457
2458 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2459
2460 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2461 zdb_ddt_add_cb, &t);
2462
2463 spa_config_exit(spa, SCL_CONFIG, FTAG);
2464
2465 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2466 ddt_stat_t dds;
2467 uint64_t refcnt = zdde->zdde_ref_blocks;
2468 ASSERT(refcnt != 0);
2469
2470 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2471 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2472 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2473 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2474
2475 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2476 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2477 dds.dds_ref_psize = zdde->zdde_ref_psize;
2478 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2479
2480 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0);
2481
2482 umem_free(zdde, sizeof (*zdde));
2483 }
2484
2485 avl_destroy(&t);
2486
2487 ddt_histogram_stat(&dds_total, &ddh_total);
2488
2489 (void) printf("Simulated DDT histogram:\n");
2490
2491 zpool_dump_ddt(&dds_total, &ddh_total);
2492
2493 dump_dedup_ratio(&dds_total);
2494 }
2495
2496 static void
2497 dump_zpool(spa_t *spa)
2498 {
2499 dsl_pool_t *dp = spa_get_dsl(spa);
2500 int rc = 0;
2501
2502 if (dump_opt['S']) {
2503 dump_simulated_ddt(spa);
2504 return;
2505 }
2506
2507 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2508 (void) printf("\nCached configuration:\n");
2509 dump_nvlist(spa->spa_config, 8);
2510 }
2511
2512 if (dump_opt['C'])
2513 dump_config(spa);
2514
2515 if (dump_opt['u'])
2516 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2517
2518 if (dump_opt['D'])
2519 dump_all_ddts(spa);
2520
2521 if (dump_opt['d'] > 2 || dump_opt['m'])
2522 dump_metaslabs(spa);
2523
2524 if (dump_opt['d'] || dump_opt['i']) {
2525 dump_dir(dp->dp_meta_objset);
2526 if (dump_opt['d'] >= 3) {
2527 dump_bpobj(&spa->spa_deferred_bpobj, "Deferred frees");
2528 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2529 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2530 "Pool snapshot frees");
2531 }
2532
2533 if (spa_feature_is_active(spa,
2534 &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) {
2535 dump_bptree(spa->spa_meta_objset,
2536 spa->spa_dsl_pool->dp_bptree_obj,
2537 "Pool dataset frees");
2538 }
2539 dump_dtl(spa->spa_root_vdev, 0);
2540 }
2541 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
2542 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
2543 }
2544 if (dump_opt['b'] || dump_opt['c'])
2545 rc = dump_block_stats(spa);
2546
2547 if (dump_opt['s'])
2548 show_pool_stats(spa);
2549
2550 if (dump_opt['h'])
2551 dump_history(spa);
2552
2553 if (rc != 0)
2554 exit(rc);
2555 }
2556
2557 #define ZDB_FLAG_CHECKSUM 0x0001
2558 #define ZDB_FLAG_DECOMPRESS 0x0002
2559 #define ZDB_FLAG_BSWAP 0x0004
2560 #define ZDB_FLAG_GBH 0x0008
2561 #define ZDB_FLAG_INDIRECT 0x0010
2562 #define ZDB_FLAG_PHYS 0x0020
2563 #define ZDB_FLAG_RAW 0x0040
2564 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
2565
2566 int flagbits[256];
2567
2568 static void
2569 zdb_print_blkptr(blkptr_t *bp, int flags)
2570 {
2571 char blkbuf[BP_SPRINTF_LEN];
2572
2573 if (flags & ZDB_FLAG_BSWAP)
2574 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
2575
2576 sprintf_blkptr(blkbuf, bp);
2577 (void) printf("%s\n", blkbuf);
2578 }
2579
2580 static void
2581 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
2582 {
2583 int i;
2584
2585 for (i = 0; i < nbps; i++)
2586 zdb_print_blkptr(&bp[i], flags);
2587 }
2588
2589 static void
2590 zdb_dump_gbh(void *buf, int flags)
2591 {
2592 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
2593 }
2594
2595 static void
2596 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
2597 {
2598 if (flags & ZDB_FLAG_BSWAP)
2599 byteswap_uint64_array(buf, size);
2600 (void) write(1, buf, size);
2601 }
2602
2603 static void
2604 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
2605 {
2606 uint64_t *d = (uint64_t *)buf;
2607 int nwords = size / sizeof (uint64_t);
2608 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
2609 int i, j;
2610 char *hdr, *c;
2611
2612
2613 if (do_bswap)
2614 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
2615 else
2616 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
2617
2618 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
2619
2620 for (i = 0; i < nwords; i += 2) {
2621 (void) printf("%06llx: %016llx %016llx ",
2622 (u_longlong_t)(i * sizeof (uint64_t)),
2623 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
2624 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
2625
2626 c = (char *)&d[i];
2627 for (j = 0; j < 2 * sizeof (uint64_t); j++)
2628 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
2629 (void) printf("\n");
2630 }
2631 }
2632
2633 /*
2634 * There are two acceptable formats:
2635 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
2636 * child[.child]* - For example: 0.1.1
2637 *
2638 * The second form can be used to specify arbitrary vdevs anywhere
2639 * in the heirarchy. For example, in a pool with a mirror of
2640 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
2641 */
2642 static vdev_t *
2643 zdb_vdev_lookup(vdev_t *vdev, char *path)
2644 {
2645 char *s, *p, *q;
2646 int i;
2647
2648 if (vdev == NULL)
2649 return (NULL);
2650
2651 /* First, assume the x.x.x.x format */
2652 i = (int)strtoul(path, &s, 10);
2653 if (s == path || (s && *s != '.' && *s != '\0'))
2654 goto name;
2655 if (i < 0 || i >= vdev->vdev_children)
2656 return (NULL);
2657
2658 vdev = vdev->vdev_child[i];
2659 if (*s == '\0')
2660 return (vdev);
2661 return (zdb_vdev_lookup(vdev, s+1));
2662
2663 name:
2664 for (i = 0; i < vdev->vdev_children; i++) {
2665 vdev_t *vc = vdev->vdev_child[i];
2666
2667 if (vc->vdev_path == NULL) {
2668 vc = zdb_vdev_lookup(vc, path);
2669 if (vc == NULL)
2670 continue;
2671 else
2672 return (vc);
2673 }
2674
2675 p = strrchr(vc->vdev_path, '/');
2676 p = p ? p + 1 : vc->vdev_path;
2677 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
2678
2679 if (strcmp(vc->vdev_path, path) == 0)
2680 return (vc);
2681 if (strcmp(p, path) == 0)
2682 return (vc);
2683 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
2684 return (vc);
2685 }
2686
2687 return (NULL);
2688 }
2689
2690 /*
2691 * Read a block from a pool and print it out. The syntax of the
2692 * block descriptor is:
2693 *
2694 * pool:vdev_specifier:offset:size[:flags]
2695 *
2696 * pool - The name of the pool you wish to read from
2697 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
2698 * offset - offset, in hex, in bytes
2699 * size - Amount of data to read, in hex, in bytes
2700 * flags - A string of characters specifying options
2701 * b: Decode a blkptr at given offset within block
2702 * *c: Calculate and display checksums
2703 * d: Decompress data before dumping
2704 * e: Byteswap data before dumping
2705 * g: Display data as a gang block header
2706 * i: Display as an indirect block
2707 * p: Do I/O to physical offset
2708 * r: Dump raw data to stdout
2709 *
2710 * * = not yet implemented
2711 */
2712 static void
2713 zdb_read_block(char *thing, spa_t *spa)
2714 {
2715 blkptr_t blk, *bp = &blk;
2716 dva_t *dva = bp->blk_dva;
2717 int flags = 0;
2718 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
2719 zio_t *zio;
2720 vdev_t *vd;
2721 void *pbuf, *lbuf, *buf;
2722 char *s, *p, *dup, *vdev, *flagstr;
2723 int i, error;
2724
2725 dup = strdup(thing);
2726 s = strtok(dup, ":");
2727 vdev = s ? s : "";
2728 s = strtok(NULL, ":");
2729 offset = strtoull(s ? s : "", NULL, 16);
2730 s = strtok(NULL, ":");
2731 size = strtoull(s ? s : "", NULL, 16);
2732 s = strtok(NULL, ":");
2733 flagstr = s ? s : "";
2734
2735 s = NULL;
2736 if (size == 0)
2737 s = "size must not be zero";
2738 if (!IS_P2ALIGNED(size, DEV_BSIZE))
2739 s = "size must be a multiple of sector size";
2740 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
2741 s = "offset must be a multiple of sector size";
2742 if (s) {
2743 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
2744 free(dup);
2745 return;
2746 }
2747
2748 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
2749 for (i = 0; flagstr[i]; i++) {
2750 int bit = flagbits[(uchar_t)flagstr[i]];
2751
2752 if (bit == 0) {
2753 (void) printf("***Invalid flag: %c\n",
2754 flagstr[i]);
2755 continue;
2756 }
2757 flags |= bit;
2758
2759 /* If it's not something with an argument, keep going */
2760 if ((bit & (ZDB_FLAG_CHECKSUM |
2761 ZDB_FLAG_PRINT_BLKPTR)) == 0)
2762 continue;
2763
2764 p = &flagstr[i + 1];
2765 if (bit == ZDB_FLAG_PRINT_BLKPTR)
2766 blkptr_offset = strtoull(p, &p, 16);
2767 if (*p != ':' && *p != '\0') {
2768 (void) printf("***Invalid flag arg: '%s'\n", s);
2769 free(dup);
2770 return;
2771 }
2772 }
2773 }
2774
2775 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
2776 if (vd == NULL) {
2777 (void) printf("***Invalid vdev: %s\n", vdev);
2778 free(dup);
2779 return;
2780 } else {
2781 if (vd->vdev_path)
2782 (void) fprintf(stderr, "Found vdev: %s\n",
2783 vd->vdev_path);
2784 else
2785 (void) fprintf(stderr, "Found vdev type: %s\n",
2786 vd->vdev_ops->vdev_op_type);
2787 }
2788
2789 psize = size;
2790 lsize = size;
2791
2792 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2793 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2794
2795 BP_ZERO(bp);
2796
2797 DVA_SET_VDEV(&dva[0], vd->vdev_id);
2798 DVA_SET_OFFSET(&dva[0], offset);
2799 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
2800 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
2801
2802 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
2803
2804 BP_SET_LSIZE(bp, lsize);
2805 BP_SET_PSIZE(bp, psize);
2806 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
2807 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
2808 BP_SET_TYPE(bp, DMU_OT_NONE);
2809 BP_SET_LEVEL(bp, 0);
2810 BP_SET_DEDUP(bp, 0);
2811 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
2812
2813 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
2814 zio = zio_root(spa, NULL, NULL, 0);
2815
2816 if (vd == vd->vdev_top) {
2817 /*
2818 * Treat this as a normal block read.
2819 */
2820 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
2821 ZIO_PRIORITY_SYNC_READ,
2822 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
2823 } else {
2824 /*
2825 * Treat this as a vdev child I/O.
2826 */
2827 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
2828 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
2829 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
2830 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
2831 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
2832 }
2833
2834 error = zio_wait(zio);
2835 spa_config_exit(spa, SCL_STATE, FTAG);
2836
2837 if (error) {
2838 (void) printf("Read of %s failed, error: %d\n", thing, error);
2839 goto out;
2840 }
2841
2842 if (flags & ZDB_FLAG_DECOMPRESS) {
2843 /*
2844 * We don't know how the data was compressed, so just try
2845 * every decompress function at every inflated blocksize.
2846 */
2847 enum zio_compress c;
2848 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2849 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2850
2851 bcopy(pbuf, pbuf2, psize);
2852
2853 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
2854 SPA_MAXBLOCKSIZE - psize) == 0);
2855
2856 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
2857 SPA_MAXBLOCKSIZE - psize) == 0);
2858
2859 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
2860 lsize -= SPA_MINBLOCKSIZE) {
2861 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
2862 if (zio_decompress_data(c, pbuf, lbuf,
2863 psize, lsize) == 0 &&
2864 zio_decompress_data(c, pbuf2, lbuf2,
2865 psize, lsize) == 0 &&
2866 bcmp(lbuf, lbuf2, lsize) == 0)
2867 break;
2868 }
2869 if (c != ZIO_COMPRESS_FUNCTIONS)
2870 break;
2871 lsize -= SPA_MINBLOCKSIZE;
2872 }
2873
2874 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
2875 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
2876
2877 if (lsize <= psize) {
2878 (void) printf("Decompress of %s failed\n", thing);
2879 goto out;
2880 }
2881 buf = lbuf;
2882 size = lsize;
2883 } else {
2884 buf = pbuf;
2885 size = psize;
2886 }
2887
2888 if (flags & ZDB_FLAG_PRINT_BLKPTR)
2889 zdb_print_blkptr((blkptr_t *)(void *)
2890 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
2891 else if (flags & ZDB_FLAG_RAW)
2892 zdb_dump_block_raw(buf, size, flags);
2893 else if (flags & ZDB_FLAG_INDIRECT)
2894 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
2895 flags);
2896 else if (flags & ZDB_FLAG_GBH)
2897 zdb_dump_gbh(buf, flags);
2898 else
2899 zdb_dump_block(thing, buf, size, flags);
2900
2901 out:
2902 umem_free(pbuf, SPA_MAXBLOCKSIZE);
2903 umem_free(lbuf, SPA_MAXBLOCKSIZE);
2904 free(dup);
2905 }
2906
2907 static boolean_t
2908 pool_match(nvlist_t *cfg, char *tgt)
2909 {
2910 uint64_t v, guid = strtoull(tgt, NULL, 0);
2911 char *s;
2912
2913 if (guid != 0) {
2914 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
2915 return (v == guid);
2916 } else {
2917 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
2918 return (strcmp(s, tgt) == 0);
2919 }
2920 return (B_FALSE);
2921 }
2922
2923 static char *
2924 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
2925 {
2926 nvlist_t *pools;
2927 nvlist_t *match = NULL;
2928 char *name = NULL;
2929 char *sepp = NULL;
2930 char sep;
2931 int count = 0;
2932 importargs_t args = { 0 };
2933
2934 args.paths = dirc;
2935 args.path = dirv;
2936 args.can_be_active = B_TRUE;
2937
2938 if ((sepp = strpbrk(*target, "/@")) != NULL) {
2939 sep = *sepp;
2940 *sepp = '\0';
2941 }
2942
2943 pools = zpool_search_import(g_zfs, &args);
2944
2945 if (pools != NULL) {
2946 nvpair_t *elem = NULL;
2947 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
2948 verify(nvpair_value_nvlist(elem, configp) == 0);
2949 if (pool_match(*configp, *target)) {
2950 count++;
2951 if (match != NULL) {
2952 /* print previously found config */
2953 if (name != NULL) {
2954 (void) printf("%s\n", name);
2955 dump_nvlist(match, 8);
2956 name = NULL;
2957 }
2958 (void) printf("%s\n",
2959 nvpair_name(elem));
2960 dump_nvlist(*configp, 8);
2961 } else {
2962 match = *configp;
2963 name = nvpair_name(elem);
2964 }
2965 }
2966 }
2967 }
2968 if (count > 1)
2969 (void) fatal("\tMatched %d pools - use pool GUID "
2970 "instead of pool name or \n"
2971 "\tpool name part of a dataset name to select pool", count);
2972
2973 if (sepp)
2974 *sepp = sep;
2975 /*
2976 * If pool GUID was specified for pool id, replace it with pool name
2977 */
2978 if (name && (strstr(*target, name) != *target)) {
2979 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
2980
2981 *target = umem_alloc(sz, UMEM_NOFAIL);
2982 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
2983 }
2984
2985 *configp = name ? match : NULL;
2986
2987 return (name);
2988 }
2989
2990 int
2991 main(int argc, char **argv)
2992 {
2993 int i, c;
2994 struct rlimit rl = { 1024, 1024 };
2995 spa_t *spa = NULL;
2996 objset_t *os = NULL;
2997 int dump_all = 1;
2998 int verbose = 0;
2999 int error = 0;
3000 char **searchdirs = NULL;
3001 int nsearch = 0;
3002 char *target;
3003 nvlist_t *policy = NULL;
3004 uint64_t max_txg = UINT64_MAX;
3005 int rewind = ZPOOL_NEVER_REWIND;
3006
3007 (void) setrlimit(RLIMIT_NOFILE, &rl);
3008 (void) enable_extended_FILE_stdio(-1, -1);
3009
3010 dprintf_setup(&argc, argv);
3011
3012 while ((c = getopt(argc, argv, "bcdhilmsuCDRSAFLXevp:t:U:P")) != -1) {
3013 switch (c) {
3014 case 'b':
3015 case 'c':
3016 case 'd':
3017 case 'h':
3018 case 'i':
3019 case 'l':
3020 case 'm':
3021 case 's':
3022 case 'u':
3023 case 'C':
3024 case 'D':
3025 case 'R':
3026 case 'S':
3027 dump_opt[c]++;
3028 dump_all = 0;
3029 break;
3030 case 'A':
3031 case 'F':
3032 case 'L':
3033 case 'X':
3034 case 'e':
3035 case 'P':
3036 dump_opt[c]++;
3037 break;
3038 case 'v':
3039 verbose++;
3040 break;
3041 case 'p':
3042 if (searchdirs == NULL) {
3043 searchdirs = umem_alloc(sizeof (char *),
3044 UMEM_NOFAIL);
3045 } else {
3046 char **tmp = umem_alloc((nsearch + 1) *
3047 sizeof (char *), UMEM_NOFAIL);
3048 bcopy(searchdirs, tmp, nsearch *
3049 sizeof (char *));
3050 umem_free(searchdirs,
3051 nsearch * sizeof (char *));
3052 searchdirs = tmp;
3053 }
3054 searchdirs[nsearch++] = optarg;
3055 break;
3056 case 't':
3057 max_txg = strtoull(optarg, NULL, 0);
3058 if (max_txg < TXG_INITIAL) {
3059 (void) fprintf(stderr, "incorrect txg "
3060 "specified: %s\n", optarg);
3061 usage();
3062 }
3063 break;
3064 case 'U':
3065 spa_config_path = optarg;
3066 break;
3067 default:
3068 usage();
3069 break;
3070 }
3071 }
3072
3073 if (!dump_opt['e'] && searchdirs != NULL) {
3074 (void) fprintf(stderr, "-p option requires use of -e\n");
3075 usage();
3076 }
3077
3078 kernel_init(FREAD);
3079 g_zfs = libzfs_init();
3080 ASSERT(g_zfs != NULL);
3081
3082 if (dump_all)
3083 verbose = MAX(verbose, 1);
3084
3085 for (c = 0; c < 256; c++) {
3086 if (dump_all && !strchr("elAFLRSXP", c))
3087 dump_opt[c] = 1;
3088 if (dump_opt[c])
3089 dump_opt[c] += verbose;
3090 }
3091
3092 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3093 zfs_recover = (dump_opt['A'] > 1);
3094
3095 argc -= optind;
3096 argv += optind;
3097
3098 if (argc < 2 && dump_opt['R'])
3099 usage();
3100 if (argc < 1) {
3101 if (!dump_opt['e'] && dump_opt['C']) {
3102 dump_cachefile(spa_config_path);
3103 return (0);
3104 }
3105 usage();
3106 }
3107
3108 if (dump_opt['l']) {
3109 dump_label(argv[0]);
3110 return (0);
3111 }
3112
3113 if (dump_opt['X'] || dump_opt['F'])
3114 rewind = ZPOOL_DO_REWIND |
3115 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3116
3117 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3118 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3119 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3120 fatal("internal error: %s", strerror(ENOMEM));
3121
3122 error = 0;
3123 target = argv[0];
3124
3125 if (dump_opt['e']) {
3126 nvlist_t *cfg = NULL;
3127 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3128
3129 error = ENOENT;
3130 if (name) {
3131 if (dump_opt['C'] > 1) {
3132 (void) printf("\nConfiguration for import:\n");
3133 dump_nvlist(cfg, 8);
3134 }
3135 if (nvlist_add_nvlist(cfg,
3136 ZPOOL_REWIND_POLICY, policy) != 0) {
3137 fatal("can't open '%s': %s",
3138 target, strerror(ENOMEM));
3139 }
3140 if ((error = spa_import(name, cfg, NULL,
3141 ZFS_IMPORT_MISSING_LOG)) != 0) {
3142 error = spa_import(name, cfg, NULL,
3143 ZFS_IMPORT_VERBATIM);
3144 }
3145 }
3146 }
3147
3148 if (error == 0) {
3149 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3150 error = spa_open_rewind(target, &spa, FTAG, policy,
3151 NULL);
3152 if (error) {
3153 /*
3154 * If we're missing the log device then
3155 * try opening the pool after clearing the
3156 * log state.
3157 */
3158 mutex_enter(&spa_namespace_lock);
3159 if ((spa = spa_lookup(target)) != NULL &&
3160 spa->spa_log_state == SPA_LOG_MISSING) {
3161 spa->spa_log_state = SPA_LOG_CLEAR;
3162 error = 0;
3163 }
3164 mutex_exit(&spa_namespace_lock);
3165
3166 if (!error) {
3167 error = spa_open_rewind(target, &spa,
3168 FTAG, policy, NULL);
3169 }
3170 }
3171 } else {
3172 error = dmu_objset_own(target, DMU_OST_ANY,
3173 B_TRUE, FTAG, &os);
3174 }
3175 }
3176 nvlist_free(policy);
3177
3178 if (error)
3179 fatal("can't open '%s': %s", target, strerror(error));
3180
3181 argv++;
3182 argc--;
3183 if (!dump_opt['R']) {
3184 if (argc > 0) {
3185 zopt_objects = argc;
3186 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3187 for (i = 0; i < zopt_objects; i++) {
3188 errno = 0;
3189 zopt_object[i] = strtoull(argv[i], NULL, 0);
3190 if (zopt_object[i] == 0 && errno != 0)
3191 fatal("bad number %s: %s",
3192 argv[i], strerror(errno));
3193 }
3194 }
3195 (os != NULL) ? dump_dir(os) : dump_zpool(spa);
3196 } else {
3197 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3198 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3199 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3200 flagbits['e'] = ZDB_FLAG_BSWAP;
3201 flagbits['g'] = ZDB_FLAG_GBH;
3202 flagbits['i'] = ZDB_FLAG_INDIRECT;
3203 flagbits['p'] = ZDB_FLAG_PHYS;
3204 flagbits['r'] = ZDB_FLAG_RAW;
3205
3206 for (i = 0; i < argc; i++)
3207 zdb_read_block(argv[i], spa);
3208 }
3209
3210 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3211
3212 fuid_table_destroy();
3213 sa_loaded = B_FALSE;
3214
3215 libzfs_fini(g_zfs);
3216 kernel_fini();
3217
3218 return (0);
3219 }