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