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 #include <zfs_comutil.h>
61 #undef ZFS_MAXNAMELEN
62 #undef verify
63 #include <libzfs.h>
64
65 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
66 zio_compress_table[(idx)].ci_name : "UNKNOWN")
67 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
68 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
69 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
70 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
71 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
72 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : DMU_OT_NUMTYPES)
73
74 #ifndef lint
75 extern int zfs_recover;
76 #else
77 int zfs_recover;
78 #endif
79
80 const char cmdname[] = "zdb";
81 uint8_t dump_opt[256];
82
83 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
84
85 extern void dump_intent_log(zilog_t *);
86 uint64_t *zopt_object = NULL;
87 int zopt_objects = 0;
88 libzfs_handle_t *g_zfs;
89
90 /*
91 * These libumem hooks provide a reasonable set of defaults for the allocator's
92 * debugging facilities.
93 */
94 const char *
95 _umem_debug_init()
96 {
97 return ("default,verbose"); /* $UMEM_DEBUG setting */
98 }
99
100 const char *
101 _umem_logging_init(void)
102 {
103 return ("fail,contents"); /* $UMEM_LOGGING setting */
104 }
105
106 static void
107 usage(void)
108 {
109 (void) fprintf(stderr,
110 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
111 "poolname [object...]\n"
112 " %s [-divPA] [-e -p path...] dataset [object...]\n"
113 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] "
114 "poolname [vdev [metaslab...]]\n"
115 " %s -R [-A] [-e [-p path...]] poolname "
116 "vdev:offset:size[:flags]\n"
117 " %s -S [-PA] [-e [-p path...]] poolname\n"
118 " %s -l [-uA] device\n"
119 " %s -C [-A] [-U config]\n\n",
120 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
121
122 (void) fprintf(stderr, " Dataset name must include at least one "
123 "separator character '/' or '@'\n");
124 (void) fprintf(stderr, " If dataset name is specified, only that "
125 "dataset is dumped\n");
126 (void) fprintf(stderr, " If object numbers are specified, only "
127 "those objects are dumped\n\n");
128 (void) fprintf(stderr, " Options to control amount of output:\n");
129 (void) fprintf(stderr, " -u uberblock\n");
130 (void) fprintf(stderr, " -d dataset(s)\n");
131 (void) fprintf(stderr, " -i intent logs\n");
132 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
133 (void) fprintf(stderr, " -h pool history\n");
134 (void) fprintf(stderr, " -b block statistics\n");
135 (void) fprintf(stderr, " -m metaslabs\n");
136 (void) fprintf(stderr, " -c checksum all metadata (twice for "
137 "all data) blocks\n");
138 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
139 (void) fprintf(stderr, " -D dedup statistics\n");
140 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
141 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
142 (void) fprintf(stderr, " -l dump label contents\n");
143 (void) fprintf(stderr, " -L disable leak tracking (do not "
144 "load spacemaps)\n");
145 (void) fprintf(stderr, " -R read and display block from a "
146 "device\n\n");
147 (void) fprintf(stderr, " Below options are intended for use "
148 "with other options (except -l):\n");
149 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
150 "panic recovery (-AA) or both (-AAA)\n");
151 (void) fprintf(stderr, " -F attempt automatic rewind within "
152 "safe range of transaction groups\n");
153 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
154 "cachefile\n");
155 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
156 "work with dataset)\n");
157 (void) fprintf(stderr, " -e pool is exported/destroyed/"
158 "has altroot/not in a cachefile\n");
159 (void) fprintf(stderr, " -p <path> -- use one or more with "
160 "-e to specify path to vdev dir\n");
161 (void) fprintf(stderr, " -P print numbers in parseable form\n");
162 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
163 "searching for uberblocks\n");
164 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
165 "to make only that option verbose\n");
166 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
167 exit(1);
168 }
169
170 /*
171 * Called for usage errors that are discovered after a call to spa_open(),
172 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
173 */
174
175 static void
176 fatal(const char *fmt, ...)
177 {
178 va_list ap;
179
180 va_start(ap, fmt);
181 (void) fprintf(stderr, "%s: ", cmdname);
182 (void) vfprintf(stderr, fmt, ap);
183 va_end(ap);
184 (void) fprintf(stderr, "\n");
185
186 exit(1);
187 }
188
189 /* ARGSUSED */
190 static void
191 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
192 {
193 nvlist_t *nv;
194 size_t nvsize = *(uint64_t *)data;
195 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
196
197 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
198
199 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
200
201 umem_free(packed, nvsize);
202
203 dump_nvlist(nv, 8);
204
205 nvlist_free(nv);
206 }
207
208 /* ARGSUSED */
209 static void
210 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
211 {
212 spa_history_phys_t *shp = data;
213
214 if (shp == NULL)
215 return;
216
217 (void) printf("\t\tpool_create_len = %llu\n",
218 (u_longlong_t)shp->sh_pool_create_len);
219 (void) printf("\t\tphys_max_off = %llu\n",
220 (u_longlong_t)shp->sh_phys_max_off);
221 (void) printf("\t\tbof = %llu\n",
222 (u_longlong_t)shp->sh_bof);
223 (void) printf("\t\teof = %llu\n",
224 (u_longlong_t)shp->sh_eof);
225 (void) printf("\t\trecords_lost = %llu\n",
226 (u_longlong_t)shp->sh_records_lost);
227 }
228
229 static void
230 zdb_nicenum(uint64_t num, char *buf)
231 {
232 if (dump_opt['P'])
233 (void) sprintf(buf, "%llu", (longlong_t)num);
234 else
235 nicenum(num, buf);
236 }
237
238 const char dump_zap_stars[] = "****************************************";
239 const int dump_zap_width = sizeof (dump_zap_stars) - 1;
240
241 static void
242 dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE])
243 {
244 int i;
245 int minidx = ZAP_HISTOGRAM_SIZE - 1;
246 int maxidx = 0;
247 uint64_t max = 0;
248
249 for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) {
250 if (histo[i] > max)
251 max = histo[i];
252 if (histo[i] > 0 && i > maxidx)
253 maxidx = i;
254 if (histo[i] > 0 && i < minidx)
255 minidx = i;
256 }
257
258 if (max < dump_zap_width)
259 max = dump_zap_width;
260
261 for (i = minidx; i <= maxidx; i++)
262 (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i],
263 &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]);
264 }
265
266 static void
267 dump_zap_stats(objset_t *os, uint64_t object)
268 {
269 int error;
270 zap_stats_t zs;
271
272 error = zap_get_stats(os, object, &zs);
273 if (error)
274 return;
275
276 if (zs.zs_ptrtbl_len == 0) {
277 ASSERT(zs.zs_num_blocks == 1);
278 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
279 (u_longlong_t)zs.zs_blocksize,
280 (u_longlong_t)zs.zs_num_entries);
281 return;
282 }
283
284 (void) printf("\tFat ZAP stats:\n");
285
286 (void) printf("\t\tPointer table:\n");
287 (void) printf("\t\t\t%llu elements\n",
288 (u_longlong_t)zs.zs_ptrtbl_len);
289 (void) printf("\t\t\tzt_blk: %llu\n",
290 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
291 (void) printf("\t\t\tzt_numblks: %llu\n",
292 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
293 (void) printf("\t\t\tzt_shift: %llu\n",
294 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
295 (void) printf("\t\t\tzt_blks_copied: %llu\n",
296 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
297 (void) printf("\t\t\tzt_nextblk: %llu\n",
298 (u_longlong_t)zs.zs_ptrtbl_nextblk);
299
300 (void) printf("\t\tZAP entries: %llu\n",
301 (u_longlong_t)zs.zs_num_entries);
302 (void) printf("\t\tLeaf blocks: %llu\n",
303 (u_longlong_t)zs.zs_num_leafs);
304 (void) printf("\t\tTotal blocks: %llu\n",
305 (u_longlong_t)zs.zs_num_blocks);
306 (void) printf("\t\tzap_block_type: 0x%llx\n",
307 (u_longlong_t)zs.zs_block_type);
308 (void) printf("\t\tzap_magic: 0x%llx\n",
309 (u_longlong_t)zs.zs_magic);
310 (void) printf("\t\tzap_salt: 0x%llx\n",
311 (u_longlong_t)zs.zs_salt);
312
313 (void) printf("\t\tLeafs with 2^n pointers:\n");
314 dump_zap_histogram(zs.zs_leafs_with_2n_pointers);
315
316 (void) printf("\t\tBlocks with n*5 entries:\n");
317 dump_zap_histogram(zs.zs_blocks_with_n5_entries);
318
319 (void) printf("\t\tBlocks n/10 full:\n");
320 dump_zap_histogram(zs.zs_blocks_n_tenths_full);
321
322 (void) printf("\t\tEntries with n chunks:\n");
323 dump_zap_histogram(zs.zs_entries_using_n_chunks);
324
325 (void) printf("\t\tBuckets with n entries:\n");
326 dump_zap_histogram(zs.zs_buckets_with_n_entries);
327 }
328
329 /*ARGSUSED*/
330 static void
331 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
332 {
333 }
334
335 /*ARGSUSED*/
336 static void
337 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
338 {
339 (void) printf("\tUNKNOWN OBJECT TYPE\n");
340 }
341
342 /*ARGSUSED*/
343 void
344 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
345 {
346 }
347
348 /*ARGSUSED*/
349 static void
350 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
351 {
352 }
353
354 /*ARGSUSED*/
355 static void
356 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
357 {
358 zap_cursor_t zc;
359 zap_attribute_t attr;
360 void *prop;
361 int i;
362
363 dump_zap_stats(os, object);
364 (void) printf("\n");
365
366 for (zap_cursor_init(&zc, os, object);
367 zap_cursor_retrieve(&zc, &attr) == 0;
368 zap_cursor_advance(&zc)) {
369 (void) printf("\t\t%s = ", attr.za_name);
370 if (attr.za_num_integers == 0) {
371 (void) printf("\n");
372 continue;
373 }
374 prop = umem_zalloc(attr.za_num_integers *
375 attr.za_integer_length, UMEM_NOFAIL);
376 (void) zap_lookup(os, object, attr.za_name,
377 attr.za_integer_length, attr.za_num_integers, prop);
378 if (attr.za_integer_length == 1) {
379 (void) printf("%s", (char *)prop);
380 } else {
381 for (i = 0; i < attr.za_num_integers; i++) {
382 switch (attr.za_integer_length) {
383 case 2:
384 (void) printf("%u ",
385 ((uint16_t *)prop)[i]);
386 break;
387 case 4:
388 (void) printf("%u ",
389 ((uint32_t *)prop)[i]);
390 break;
391 case 8:
392 (void) printf("%lld ",
393 (u_longlong_t)((int64_t *)prop)[i]);
394 break;
395 }
396 }
397 }
398 (void) printf("\n");
399 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
400 }
401 zap_cursor_fini(&zc);
402 }
403
404 /*ARGSUSED*/
405 static void
406 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
407 {
408 dump_zap_stats(os, object);
409 /* contents are printed elsewhere, properly decoded */
410 }
411
412 /*ARGSUSED*/
413 static void
414 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
415 {
416 zap_cursor_t zc;
417 zap_attribute_t attr;
418
419 dump_zap_stats(os, object);
420 (void) printf("\n");
421
422 for (zap_cursor_init(&zc, os, object);
423 zap_cursor_retrieve(&zc, &attr) == 0;
424 zap_cursor_advance(&zc)) {
425 (void) printf("\t\t%s = ", attr.za_name);
426 if (attr.za_num_integers == 0) {
427 (void) printf("\n");
428 continue;
429 }
430 (void) printf(" %llx : [%d:%d:%d]\n",
431 (u_longlong_t)attr.za_first_integer,
432 (int)ATTR_LENGTH(attr.za_first_integer),
433 (int)ATTR_BSWAP(attr.za_first_integer),
434 (int)ATTR_NUM(attr.za_first_integer));
435 }
436 zap_cursor_fini(&zc);
437 }
438
439 /*ARGSUSED*/
440 static void
441 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
442 {
443 zap_cursor_t zc;
444 zap_attribute_t attr;
445 uint16_t *layout_attrs;
446 int i;
447
448 dump_zap_stats(os, object);
449 (void) printf("\n");
450
451 for (zap_cursor_init(&zc, os, object);
452 zap_cursor_retrieve(&zc, &attr) == 0;
453 zap_cursor_advance(&zc)) {
454 (void) printf("\t\t%s = [", attr.za_name);
455 if (attr.za_num_integers == 0) {
456 (void) printf("\n");
457 continue;
458 }
459
460 VERIFY(attr.za_integer_length == 2);
461 layout_attrs = umem_zalloc(attr.za_num_integers *
462 attr.za_integer_length, UMEM_NOFAIL);
463
464 VERIFY(zap_lookup(os, object, attr.za_name,
465 attr.za_integer_length,
466 attr.za_num_integers, layout_attrs) == 0);
467
468 for (i = 0; i != attr.za_num_integers; i++)
469 (void) printf(" %d ", (int)layout_attrs[i]);
470 (void) printf("]\n");
471 umem_free(layout_attrs,
472 attr.za_num_integers * attr.za_integer_length);
473 }
474 zap_cursor_fini(&zc);
475 }
476
477 /*ARGSUSED*/
478 static void
479 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
480 {
481 zap_cursor_t zc;
482 zap_attribute_t attr;
483 const char *typenames[] = {
484 /* 0 */ "not specified",
485 /* 1 */ "FIFO",
486 /* 2 */ "Character Device",
487 /* 3 */ "3 (invalid)",
488 /* 4 */ "Directory",
489 /* 5 */ "5 (invalid)",
490 /* 6 */ "Block Device",
491 /* 7 */ "7 (invalid)",
492 /* 8 */ "Regular File",
493 /* 9 */ "9 (invalid)",
494 /* 10 */ "Symbolic Link",
495 /* 11 */ "11 (invalid)",
496 /* 12 */ "Socket",
497 /* 13 */ "Door",
498 /* 14 */ "Event Port",
499 /* 15 */ "15 (invalid)",
500 };
501
502 dump_zap_stats(os, object);
503 (void) printf("\n");
504
505 for (zap_cursor_init(&zc, os, object);
506 zap_cursor_retrieve(&zc, &attr) == 0;
507 zap_cursor_advance(&zc)) {
508 (void) printf("\t\t%s = %lld (type: %s)\n",
509 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
510 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
511 }
512 zap_cursor_fini(&zc);
513 }
514
515 static void
516 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm)
517 {
518 uint64_t alloc, offset, entry;
519 uint8_t mapshift = sm->sm_shift;
520 uint64_t mapstart = sm->sm_start;
521 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
522 "INVALID", "INVALID", "INVALID", "INVALID" };
523
524 if (smo->smo_object == 0)
525 return;
526
527 /*
528 * Print out the freelist entries in both encoded and decoded form.
529 */
530 alloc = 0;
531 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) {
532 VERIFY3U(0, ==, dmu_read(os, smo->smo_object, offset,
533 sizeof (entry), &entry, DMU_READ_PREFETCH));
534 if (SM_DEBUG_DECODE(entry)) {
535 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
536 (u_longlong_t)(offset / sizeof (entry)),
537 ddata[SM_DEBUG_ACTION_DECODE(entry)],
538 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
539 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
540 } else {
541 (void) printf("\t [%6llu] %c range:"
542 " %010llx-%010llx size: %06llx\n",
543 (u_longlong_t)(offset / sizeof (entry)),
544 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
545 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
546 mapshift) + mapstart),
547 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
548 mapshift) + mapstart + (SM_RUN_DECODE(entry) <<
549 mapshift)),
550 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
551 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
552 alloc += SM_RUN_DECODE(entry) << mapshift;
553 else
554 alloc -= SM_RUN_DECODE(entry) << mapshift;
555 }
556 }
557 if (alloc != smo->smo_alloc) {
558 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
559 "with space map summary (%llu)\n",
560 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc);
561 }
562 }
563
564 static void
565 dump_metaslab_stats(metaslab_t *msp)
566 {
567 char maxbuf[32];
568 space_map_t *sm = &msp->ms_map;
569 avl_tree_t *t = sm->sm_pp_root;
570 int free_pct = sm->sm_space * 100 / sm->sm_size;
571
572 zdb_nicenum(space_map_maxsize(sm), maxbuf);
573
574 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
575 "segments", avl_numnodes(t), "maxsize", maxbuf,
576 "freepct", free_pct);
577 }
578
579 static void
580 dump_metaslab(metaslab_t *msp)
581 {
582 vdev_t *vd = msp->ms_group->mg_vd;
583 spa_t *spa = vd->vdev_spa;
584 space_map_t *sm = &msp->ms_map;
585 space_map_obj_t *smo = &msp->ms_smo;
586 char freebuf[32];
587
588 zdb_nicenum(sm->sm_size - smo->smo_alloc, freebuf);
589
590 (void) printf(
591 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
592 (u_longlong_t)(sm->sm_start / sm->sm_size),
593 (u_longlong_t)sm->sm_start, (u_longlong_t)smo->smo_object, freebuf);
594
595 if (dump_opt['m'] > 1 && !dump_opt['L']) {
596 mutex_enter(&msp->ms_lock);
597 space_map_load_wait(sm);
598 if (!sm->sm_loaded)
599 VERIFY(space_map_load(sm, zfs_metaslab_ops,
600 SM_FREE, smo, spa->spa_meta_objset) == 0);
601 dump_metaslab_stats(msp);
602 space_map_unload(sm);
603 mutex_exit(&msp->ms_lock);
604 }
605
606 if (dump_opt['d'] > 5 || dump_opt['m'] > 2) {
607 ASSERT(sm->sm_size == (1ULL << vd->vdev_ms_shift));
608
609 mutex_enter(&msp->ms_lock);
610 dump_spacemap(spa->spa_meta_objset, smo, sm);
611 mutex_exit(&msp->ms_lock);
612 }
613 }
614
615 static void
616 print_vdev_metaslab_header(vdev_t *vd)
617 {
618 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
619 (u_longlong_t)vd->vdev_id,
620 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
621 "offset", "spacemap", "free");
622 (void) printf("\t%15s %19s %15s %10s\n",
623 "---------------", "-------------------",
624 "---------------", "-------------");
625 }
626
627 static void
628 dump_metaslabs(spa_t *spa)
629 {
630 vdev_t *vd, *rvd = spa->spa_root_vdev;
631 uint64_t m, c = 0, children = rvd->vdev_children;
632
633 (void) printf("\nMetaslabs:\n");
634
635 if (!dump_opt['d'] && zopt_objects > 0) {
636 c = zopt_object[0];
637
638 if (c >= children)
639 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
640
641 if (zopt_objects > 1) {
642 vd = rvd->vdev_child[c];
643 print_vdev_metaslab_header(vd);
644
645 for (m = 1; m < zopt_objects; m++) {
646 if (zopt_object[m] < vd->vdev_ms_count)
647 dump_metaslab(
648 vd->vdev_ms[zopt_object[m]]);
649 else
650 (void) fprintf(stderr, "bad metaslab "
651 "number %llu\n",
652 (u_longlong_t)zopt_object[m]);
653 }
654 (void) printf("\n");
655 return;
656 }
657 children = c + 1;
658 }
659 for (; c < children; c++) {
660 vd = rvd->vdev_child[c];
661 print_vdev_metaslab_header(vd);
662
663 for (m = 0; m < vd->vdev_ms_count; m++)
664 dump_metaslab(vd->vdev_ms[m]);
665 (void) printf("\n");
666 }
667 }
668
669 static void
670 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
671 {
672 const ddt_phys_t *ddp = dde->dde_phys;
673 const ddt_key_t *ddk = &dde->dde_key;
674 char *types[4] = { "ditto", "single", "double", "triple" };
675 char blkbuf[BP_SPRINTF_LEN];
676 blkptr_t blk;
677
678 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
679 if (ddp->ddp_phys_birth == 0)
680 continue;
681 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
682 sprintf_blkptr(blkbuf, &blk);
683 (void) printf("index %llx refcnt %llu %s %s\n",
684 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
685 types[p], blkbuf);
686 }
687 }
688
689 static void
690 dump_dedup_ratio(const ddt_stat_t *dds)
691 {
692 double rL, rP, rD, D, dedup, compress, copies;
693
694 if (dds->dds_blocks == 0)
695 return;
696
697 rL = (double)dds->dds_ref_lsize;
698 rP = (double)dds->dds_ref_psize;
699 rD = (double)dds->dds_ref_dsize;
700 D = (double)dds->dds_dsize;
701
702 dedup = rD / D;
703 compress = rL / rP;
704 copies = rD / rP;
705
706 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
707 "dedup * compress / copies = %.2f\n\n",
708 dedup, compress, copies, dedup * compress / copies);
709 }
710
711 static void
712 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
713 {
714 char name[DDT_NAMELEN];
715 ddt_entry_t dde;
716 uint64_t walk = 0;
717 dmu_object_info_t doi;
718 uint64_t count, dspace, mspace;
719 int error;
720
721 error = ddt_object_info(ddt, type, class, &doi);
722
723 if (error == ENOENT)
724 return;
725 ASSERT(error == 0);
726
727 if ((count = ddt_object_count(ddt, type, class)) == 0)
728 return;
729
730 dspace = doi.doi_physical_blocks_512 << 9;
731 mspace = doi.doi_fill_count * doi.doi_data_block_size;
732
733 ddt_object_name(ddt, type, class, name);
734
735 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
736 name,
737 (u_longlong_t)count,
738 (u_longlong_t)(dspace / count),
739 (u_longlong_t)(mspace / count));
740
741 if (dump_opt['D'] < 3)
742 return;
743
744 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
745
746 if (dump_opt['D'] < 4)
747 return;
748
749 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
750 return;
751
752 (void) printf("%s contents:\n\n", name);
753
754 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
755 dump_dde(ddt, &dde, walk);
756
757 ASSERT(error == ENOENT);
758
759 (void) printf("\n");
760 }
761
762 static void
763 dump_all_ddts(spa_t *spa)
764 {
765 ddt_histogram_t ddh_total = { 0 };
766 ddt_stat_t dds_total = { 0 };
767
768 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
769 ddt_t *ddt = spa->spa_ddt[c];
770 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
771 for (enum ddt_class class = 0; class < DDT_CLASSES;
772 class++) {
773 dump_ddt(ddt, type, class);
774 }
775 }
776 }
777
778 ddt_get_dedup_stats(spa, &dds_total);
779
780 if (dds_total.dds_blocks == 0) {
781 (void) printf("All DDTs are empty\n");
782 return;
783 }
784
785 (void) printf("\n");
786
787 if (dump_opt['D'] > 1) {
788 (void) printf("DDT histogram (aggregated over all DDTs):\n");
789 ddt_get_dedup_histogram(spa, &ddh_total);
790 zpool_dump_ddt(&dds_total, &ddh_total);
791 }
792
793 dump_dedup_ratio(&dds_total);
794 }
795
796 static void
797 dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size)
798 {
799 char *prefix = (void *)sm;
800
801 (void) printf("%s [%llu,%llu) length %llu\n",
802 prefix,
803 (u_longlong_t)start,
804 (u_longlong_t)(start + size),
805 (u_longlong_t)(size));
806 }
807
808 static void
809 dump_dtl(vdev_t *vd, int indent)
810 {
811 spa_t *spa = vd->vdev_spa;
812 boolean_t required;
813 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
814 char prefix[256];
815
816 spa_vdev_state_enter(spa, SCL_NONE);
817 required = vdev_dtl_required(vd);
818 (void) spa_vdev_state_exit(spa, NULL, 0);
819
820 if (indent == 0)
821 (void) printf("\nDirty time logs:\n\n");
822
823 (void) printf("\t%*s%s [%s]\n", indent, "",
824 vd->vdev_path ? vd->vdev_path :
825 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
826 required ? "DTL-required" : "DTL-expendable");
827
828 for (int t = 0; t < DTL_TYPES; t++) {
829 space_map_t *sm = &vd->vdev_dtl[t];
830 if (sm->sm_space == 0)
831 continue;
832 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
833 indent + 2, "", name[t]);
834 mutex_enter(sm->sm_lock);
835 space_map_walk(sm, dump_dtl_seg, (void *)prefix);
836 mutex_exit(sm->sm_lock);
837 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
838 dump_spacemap(spa->spa_meta_objset,
839 &vd->vdev_dtl_smo, sm);
840 }
841
842 for (int c = 0; c < vd->vdev_children; c++)
843 dump_dtl(vd->vdev_child[c], indent + 4);
844 }
845
846 static void
847 dump_history(spa_t *spa)
848 {
849 nvlist_t **events = NULL;
850 char buf[SPA_MAXBLOCKSIZE];
851 uint64_t resid, len, off = 0;
852 uint_t num = 0;
853 int error;
854 time_t tsec;
855 struct tm t;
856 char tbuf[30];
857 char internalstr[MAXPATHLEN];
858
859 do {
860 len = sizeof (buf);
861
862 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
863 (void) fprintf(stderr, "Unable to read history: "
864 "error %d\n", error);
865 return;
866 }
867
868 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
869 break;
870
871 off -= resid;
872 } while (len != 0);
873
874 (void) printf("\nHistory:\n");
875 for (int i = 0; i < num; i++) {
876 uint64_t time, txg, ievent;
877 char *cmd, *intstr;
878 boolean_t printed = B_FALSE;
879
880 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
881 &time) != 0)
882 goto next;
883 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
884 &cmd) != 0) {
885 if (nvlist_lookup_uint64(events[i],
886 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
887 goto next;
888 verify(nvlist_lookup_uint64(events[i],
889 ZPOOL_HIST_TXG, &txg) == 0);
890 verify(nvlist_lookup_string(events[i],
891 ZPOOL_HIST_INT_STR, &intstr) == 0);
892 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
893 goto next;
894
895 (void) snprintf(internalstr,
896 sizeof (internalstr),
897 "[internal %s txg:%lld] %s",
898 zfs_history_event_names[ievent], txg,
899 intstr);
900 cmd = internalstr;
901 }
902 tsec = time;
903 (void) localtime_r(&tsec, &t);
904 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
905 (void) printf("%s %s\n", tbuf, cmd);
906 printed = B_TRUE;
907
908 next:
909 if (dump_opt['h'] > 1) {
910 if (!printed)
911 (void) printf("unrecognized record:\n");
912 dump_nvlist(events[i], 2);
913 }
914 }
915 }
916
917 /*ARGSUSED*/
918 static void
919 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
920 {
921 }
922
923 static uint64_t
924 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb)
925 {
926 if (dnp == NULL) {
927 ASSERT(zb->zb_level < 0);
928 if (zb->zb_object == 0)
929 return (zb->zb_blkid);
930 return (zb->zb_blkid * BP_GET_LSIZE(bp));
931 }
932
933 ASSERT(zb->zb_level >= 0);
934
935 return ((zb->zb_blkid <<
936 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
937 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
938 }
939
940 static void
941 sprintf_blkptr_compact(char *blkbuf, const blkptr_t *bp)
942 {
943 const dva_t *dva = bp->blk_dva;
944 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
945
946 if (dump_opt['b'] >= 5) {
947 sprintf_blkptr(blkbuf, bp);
948 return;
949 }
950
951 blkbuf[0] = '\0';
952
953 for (int i = 0; i < ndvas; i++)
954 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ",
955 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
956 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
957 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
958
959 (void) sprintf(blkbuf + strlen(blkbuf),
960 "%llxL/%llxP F=%llu B=%llu/%llu",
961 (u_longlong_t)BP_GET_LSIZE(bp),
962 (u_longlong_t)BP_GET_PSIZE(bp),
963 (u_longlong_t)bp->blk_fill,
964 (u_longlong_t)bp->blk_birth,
965 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
966 }
967
968 static void
969 print_indirect(blkptr_t *bp, const zbookmark_t *zb,
970 const dnode_phys_t *dnp)
971 {
972 char blkbuf[BP_SPRINTF_LEN];
973 int l;
974
975 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
976 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
977
978 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
979
980 ASSERT(zb->zb_level >= 0);
981
982 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
983 if (l == zb->zb_level) {
984 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
985 } else {
986 (void) printf(" ");
987 }
988 }
989
990 sprintf_blkptr_compact(blkbuf, bp);
991 (void) printf("%s\n", blkbuf);
992 }
993
994 static int
995 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
996 blkptr_t *bp, const zbookmark_t *zb)
997 {
998 int err = 0;
999
1000 if (bp->blk_birth == 0)
1001 return (0);
1002
1003 print_indirect(bp, zb, dnp);
1004
1005 if (BP_GET_LEVEL(bp) > 0) {
1006 uint32_t flags = ARC_WAIT;
1007 int i;
1008 blkptr_t *cbp;
1009 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1010 arc_buf_t *buf;
1011 uint64_t fill = 0;
1012
1013 err = arc_read_nolock(NULL, spa, bp, arc_getbuf_func, &buf,
1014 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1015 if (err)
1016 return (err);
1017 ASSERT(buf->b_data);
1018
1019 /* recursively visit blocks below this */
1020 cbp = buf->b_data;
1021 for (i = 0; i < epb; i++, cbp++) {
1022 zbookmark_t czb;
1023
1024 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1025 zb->zb_level - 1,
1026 zb->zb_blkid * epb + i);
1027 err = visit_indirect(spa, dnp, cbp, &czb);
1028 if (err)
1029 break;
1030 fill += cbp->blk_fill;
1031 }
1032 if (!err)
1033 ASSERT3U(fill, ==, bp->blk_fill);
1034 (void) arc_buf_remove_ref(buf, &buf);
1035 }
1036
1037 return (err);
1038 }
1039
1040 /*ARGSUSED*/
1041 static void
1042 dump_indirect(dnode_t *dn)
1043 {
1044 dnode_phys_t *dnp = dn->dn_phys;
1045 int j;
1046 zbookmark_t czb;
1047
1048 (void) printf("Indirect blocks:\n");
1049
1050 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1051 dn->dn_object, dnp->dn_nlevels - 1, 0);
1052 for (j = 0; j < dnp->dn_nblkptr; j++) {
1053 czb.zb_blkid = j;
1054 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1055 &dnp->dn_blkptr[j], &czb);
1056 }
1057
1058 (void) printf("\n");
1059 }
1060
1061 /*ARGSUSED*/
1062 static void
1063 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1064 {
1065 dsl_dir_phys_t *dd = data;
1066 time_t crtime;
1067 char nice[32];
1068
1069 if (dd == NULL)
1070 return;
1071
1072 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1073
1074 crtime = dd->dd_creation_time;
1075 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1076 (void) printf("\t\thead_dataset_obj = %llu\n",
1077 (u_longlong_t)dd->dd_head_dataset_obj);
1078 (void) printf("\t\tparent_dir_obj = %llu\n",
1079 (u_longlong_t)dd->dd_parent_obj);
1080 (void) printf("\t\torigin_obj = %llu\n",
1081 (u_longlong_t)dd->dd_origin_obj);
1082 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1083 (u_longlong_t)dd->dd_child_dir_zapobj);
1084 zdb_nicenum(dd->dd_used_bytes, nice);
1085 (void) printf("\t\tused_bytes = %s\n", nice);
1086 zdb_nicenum(dd->dd_compressed_bytes, nice);
1087 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1088 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1089 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1090 zdb_nicenum(dd->dd_quota, nice);
1091 (void) printf("\t\tquota = %s\n", nice);
1092 zdb_nicenum(dd->dd_reserved, nice);
1093 (void) printf("\t\treserved = %s\n", nice);
1094 (void) printf("\t\tprops_zapobj = %llu\n",
1095 (u_longlong_t)dd->dd_props_zapobj);
1096 (void) printf("\t\tdeleg_zapobj = %llu\n",
1097 (u_longlong_t)dd->dd_deleg_zapobj);
1098 (void) printf("\t\tflags = %llx\n",
1099 (u_longlong_t)dd->dd_flags);
1100
1101 #define DO(which) \
1102 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1103 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1104 DO(HEAD);
1105 DO(SNAP);
1106 DO(CHILD);
1107 DO(CHILD_RSRV);
1108 DO(REFRSRV);
1109 #undef DO
1110 }
1111
1112 /*ARGSUSED*/
1113 static void
1114 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1115 {
1116 dsl_dataset_phys_t *ds = data;
1117 time_t crtime;
1118 char used[32], compressed[32], uncompressed[32], unique[32];
1119 char blkbuf[BP_SPRINTF_LEN];
1120
1121 if (ds == NULL)
1122 return;
1123
1124 ASSERT(size == sizeof (*ds));
1125 crtime = ds->ds_creation_time;
1126 zdb_nicenum(ds->ds_referenced_bytes, used);
1127 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1128 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1129 zdb_nicenum(ds->ds_unique_bytes, unique);
1130 sprintf_blkptr(blkbuf, &ds->ds_bp);
1131
1132 (void) printf("\t\tdir_obj = %llu\n",
1133 (u_longlong_t)ds->ds_dir_obj);
1134 (void) printf("\t\tprev_snap_obj = %llu\n",
1135 (u_longlong_t)ds->ds_prev_snap_obj);
1136 (void) printf("\t\tprev_snap_txg = %llu\n",
1137 (u_longlong_t)ds->ds_prev_snap_txg);
1138 (void) printf("\t\tnext_snap_obj = %llu\n",
1139 (u_longlong_t)ds->ds_next_snap_obj);
1140 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1141 (u_longlong_t)ds->ds_snapnames_zapobj);
1142 (void) printf("\t\tnum_children = %llu\n",
1143 (u_longlong_t)ds->ds_num_children);
1144 (void) printf("\t\tuserrefs_obj = %llu\n",
1145 (u_longlong_t)ds->ds_userrefs_obj);
1146 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1147 (void) printf("\t\tcreation_txg = %llu\n",
1148 (u_longlong_t)ds->ds_creation_txg);
1149 (void) printf("\t\tdeadlist_obj = %llu\n",
1150 (u_longlong_t)ds->ds_deadlist_obj);
1151 (void) printf("\t\tused_bytes = %s\n", used);
1152 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1153 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1154 (void) printf("\t\tunique = %s\n", unique);
1155 (void) printf("\t\tfsid_guid = %llu\n",
1156 (u_longlong_t)ds->ds_fsid_guid);
1157 (void) printf("\t\tguid = %llu\n",
1158 (u_longlong_t)ds->ds_guid);
1159 (void) printf("\t\tflags = %llx\n",
1160 (u_longlong_t)ds->ds_flags);
1161 (void) printf("\t\tnext_clones_obj = %llu\n",
1162 (u_longlong_t)ds->ds_next_clones_obj);
1163 (void) printf("\t\tprops_obj = %llu\n",
1164 (u_longlong_t)ds->ds_props_obj);
1165 (void) printf("\t\tbp = %s\n", blkbuf);
1166 }
1167
1168 /* ARGSUSED */
1169 static int
1170 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1171 {
1172 char blkbuf[BP_SPRINTF_LEN];
1173
1174 if (bp->blk_birth != 0) {
1175 sprintf_blkptr(blkbuf, bp);
1176 (void) printf("\t%s\n", blkbuf);
1177 }
1178 return (0);
1179 }
1180
1181 static void
1182 dump_bptree(objset_t *os, uint64_t obj, char *name)
1183 {
1184 char bytes[32];
1185 bptree_phys_t *bt;
1186 dmu_buf_t *db;
1187
1188 if (dump_opt['d'] < 3)
1189 return;
1190
1191 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1192 bt = db->db_data;
1193 zdb_nicenum(bt->bt_bytes, bytes);
1194 (void) printf("\n %s: %llu datasets, %s\n",
1195 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1196 dmu_buf_rele(db, FTAG);
1197
1198 if (dump_opt['d'] < 5)
1199 return;
1200
1201 (void) printf("\n");
1202
1203 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1204 }
1205
1206 /* ARGSUSED */
1207 static int
1208 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1209 {
1210 char blkbuf[BP_SPRINTF_LEN];
1211
1212 ASSERT(bp->blk_birth != 0);
1213 sprintf_blkptr_compact(blkbuf, bp);
1214 (void) printf("\t%s\n", blkbuf);
1215 return (0);
1216 }
1217
1218 static void
1219 dump_bpobj(bpobj_t *bpo, char *name)
1220 {
1221 char bytes[32];
1222 char comp[32];
1223 char uncomp[32];
1224
1225 if (dump_opt['d'] < 3)
1226 return;
1227
1228 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1229 if (bpo->bpo_havesubobj) {
1230 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1231 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1232 (void) printf("\n %s: %llu local blkptrs, %llu subobjs, "
1233 "%s (%s/%s comp)\n",
1234 name, (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1235 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1236 bytes, comp, uncomp);
1237 } else {
1238 (void) printf("\n %s: %llu blkptrs, %s\n",
1239 name, (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, bytes);
1240 }
1241
1242 if (dump_opt['d'] < 5)
1243 return;
1244
1245 (void) printf("\n");
1246
1247 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1248 }
1249
1250 static void
1251 dump_deadlist(dsl_deadlist_t *dl)
1252 {
1253 dsl_deadlist_entry_t *dle;
1254 char bytes[32];
1255 char comp[32];
1256 char uncomp[32];
1257
1258 if (dump_opt['d'] < 3)
1259 return;
1260
1261 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1262 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1263 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1264 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1265 bytes, comp, uncomp);
1266
1267 if (dump_opt['d'] < 4)
1268 return;
1269
1270 (void) printf("\n");
1271
1272 for (dle = avl_first(&dl->dl_tree); dle;
1273 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1274 (void) printf(" mintxg %llu -> obj %llu\n",
1275 (longlong_t)dle->dle_mintxg,
1276 (longlong_t)dle->dle_bpobj.bpo_object);
1277
1278 if (dump_opt['d'] >= 5)
1279 dump_bpobj(&dle->dle_bpobj, "");
1280 }
1281 }
1282
1283 static avl_tree_t idx_tree;
1284 static avl_tree_t domain_tree;
1285 static boolean_t fuid_table_loaded;
1286 static boolean_t sa_loaded;
1287 sa_attr_type_t *sa_attr_table;
1288
1289 static void
1290 fuid_table_destroy()
1291 {
1292 if (fuid_table_loaded) {
1293 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1294 fuid_table_loaded = B_FALSE;
1295 }
1296 }
1297
1298 /*
1299 * print uid or gid information.
1300 * For normal POSIX id just the id is printed in decimal format.
1301 * For CIFS files with FUID the fuid is printed in hex followed by
1302 * the doman-rid string.
1303 */
1304 static void
1305 print_idstr(uint64_t id, const char *id_type)
1306 {
1307 if (FUID_INDEX(id)) {
1308 char *domain;
1309
1310 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1311 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1312 (u_longlong_t)id, domain, (int)FUID_RID(id));
1313 } else {
1314 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1315 }
1316
1317 }
1318
1319 static void
1320 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1321 {
1322 uint32_t uid_idx, gid_idx;
1323
1324 uid_idx = FUID_INDEX(uid);
1325 gid_idx = FUID_INDEX(gid);
1326
1327 /* Load domain table, if not already loaded */
1328 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1329 uint64_t fuid_obj;
1330
1331 /* first find the fuid object. It lives in the master node */
1332 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1333 8, 1, &fuid_obj) == 0);
1334 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1335 (void) zfs_fuid_table_load(os, fuid_obj,
1336 &idx_tree, &domain_tree);
1337 fuid_table_loaded = B_TRUE;
1338 }
1339
1340 print_idstr(uid, "uid");
1341 print_idstr(gid, "gid");
1342 }
1343
1344 /*ARGSUSED*/
1345 static void
1346 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1347 {
1348 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1349 sa_handle_t *hdl;
1350 uint64_t xattr, rdev, gen;
1351 uint64_t uid, gid, mode, fsize, parent, links;
1352 uint64_t pflags;
1353 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1354 time_t z_crtime, z_atime, z_mtime, z_ctime;
1355 sa_bulk_attr_t bulk[12];
1356 int idx = 0;
1357 int error;
1358
1359 if (!sa_loaded) {
1360 uint64_t sa_attrs = 0;
1361 uint64_t version;
1362
1363 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1364 8, 1, &version) == 0);
1365 if (version >= ZPL_VERSION_SA) {
1366 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1367 8, 1, &sa_attrs) == 0);
1368 }
1369 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1370 ZPL_END, &sa_attr_table)) != 0) {
1371 (void) printf("sa_setup failed errno %d, can't "
1372 "display znode contents\n", error);
1373 return;
1374 }
1375 sa_loaded = B_TRUE;
1376 }
1377
1378 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1379 (void) printf("Failed to get handle for SA znode\n");
1380 return;
1381 }
1382
1383 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1384 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1385 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1386 &links, 8);
1387 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1388 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1389 &mode, 8);
1390 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1391 NULL, &parent, 8);
1392 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1393 &fsize, 8);
1394 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1395 acctm, 16);
1396 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1397 modtm, 16);
1398 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1399 crtm, 16);
1400 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1401 chgtm, 16);
1402 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1403 &pflags, 8);
1404
1405 if (sa_bulk_lookup(hdl, bulk, idx)) {
1406 (void) sa_handle_destroy(hdl);
1407 return;
1408 }
1409
1410 error = zfs_obj_to_path(os, object, path, sizeof (path));
1411 if (error != 0) {
1412 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1413 (u_longlong_t)object);
1414 }
1415 if (dump_opt['d'] < 3) {
1416 (void) printf("\t%s\n", path);
1417 (void) sa_handle_destroy(hdl);
1418 return;
1419 }
1420
1421 z_crtime = (time_t)crtm[0];
1422 z_atime = (time_t)acctm[0];
1423 z_mtime = (time_t)modtm[0];
1424 z_ctime = (time_t)chgtm[0];
1425
1426 (void) printf("\tpath %s\n", path);
1427 dump_uidgid(os, uid, gid);
1428 (void) printf("\tatime %s", ctime(&z_atime));
1429 (void) printf("\tmtime %s", ctime(&z_mtime));
1430 (void) printf("\tctime %s", ctime(&z_ctime));
1431 (void) printf("\tcrtime %s", ctime(&z_crtime));
1432 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1433 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1434 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1435 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1436 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1437 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1438 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1439 sizeof (uint64_t)) == 0)
1440 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1441 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1442 sizeof (uint64_t)) == 0)
1443 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1444 sa_handle_destroy(hdl);
1445 }
1446
1447 /*ARGSUSED*/
1448 static void
1449 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1450 {
1451 }
1452
1453 /*ARGSUSED*/
1454 static void
1455 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1456 {
1457 }
1458
1459 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1460 dump_none, /* unallocated */
1461 dump_zap, /* object directory */
1462 dump_uint64, /* object array */
1463 dump_none, /* packed nvlist */
1464 dump_packed_nvlist, /* packed nvlist size */
1465 dump_none, /* bplist */
1466 dump_none, /* bplist header */
1467 dump_none, /* SPA space map header */
1468 dump_none, /* SPA space map */
1469 dump_none, /* ZIL intent log */
1470 dump_dnode, /* DMU dnode */
1471 dump_dmu_objset, /* DMU objset */
1472 dump_dsl_dir, /* DSL directory */
1473 dump_zap, /* DSL directory child map */
1474 dump_zap, /* DSL dataset snap map */
1475 dump_zap, /* DSL props */
1476 dump_dsl_dataset, /* DSL dataset */
1477 dump_znode, /* ZFS znode */
1478 dump_acl, /* ZFS V0 ACL */
1479 dump_uint8, /* ZFS plain file */
1480 dump_zpldir, /* ZFS directory */
1481 dump_zap, /* ZFS master node */
1482 dump_zap, /* ZFS delete queue */
1483 dump_uint8, /* zvol object */
1484 dump_zap, /* zvol prop */
1485 dump_uint8, /* other uint8[] */
1486 dump_uint64, /* other uint64[] */
1487 dump_zap, /* other ZAP */
1488 dump_zap, /* persistent error log */
1489 dump_uint8, /* SPA history */
1490 dump_history_offsets, /* SPA history offsets */
1491 dump_zap, /* Pool properties */
1492 dump_zap, /* DSL permissions */
1493 dump_acl, /* ZFS ACL */
1494 dump_uint8, /* ZFS SYSACL */
1495 dump_none, /* FUID nvlist */
1496 dump_packed_nvlist, /* FUID nvlist size */
1497 dump_zap, /* DSL dataset next clones */
1498 dump_zap, /* DSL scrub queue */
1499 dump_zap, /* ZFS user/group used */
1500 dump_zap, /* ZFS user/group quota */
1501 dump_zap, /* snapshot refcount tags */
1502 dump_ddt_zap, /* DDT ZAP object */
1503 dump_zap, /* DDT statistics */
1504 dump_znode, /* SA object */
1505 dump_zap, /* SA Master Node */
1506 dump_sa_attrs, /* SA attribute registration */
1507 dump_sa_layouts, /* SA attribute layouts */
1508 dump_zap, /* DSL scrub translations */
1509 dump_none, /* fake dedup BP */
1510 dump_zap, /* deadlist */
1511 dump_none, /* deadlist hdr */
1512 dump_zap, /* dsl clones */
1513 dump_none, /* bpobj subobjs */
1514 dump_unknown, /* Unknown type, must be last */
1515 };
1516
1517 static void
1518 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1519 {
1520 dmu_buf_t *db = NULL;
1521 dmu_object_info_t doi;
1522 dnode_t *dn;
1523 void *bonus = NULL;
1524 size_t bsize = 0;
1525 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1526 char bonus_size[32];
1527 char aux[50];
1528 int error;
1529
1530 if (*print_header) {
1531 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1532 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1533 "%full", "type");
1534 *print_header = 0;
1535 }
1536
1537 if (object == 0) {
1538 dn = DMU_META_DNODE(os);
1539 } else {
1540 error = dmu_bonus_hold(os, object, FTAG, &db);
1541 if (error)
1542 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1543 object, error);
1544 bonus = db->db_data;
1545 bsize = db->db_size;
1546 dn = DB_DNODE((dmu_buf_impl_t *)db);
1547 }
1548 dmu_object_info_from_dnode(dn, &doi);
1549
1550 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1551 zdb_nicenum(doi.doi_data_block_size, dblk);
1552 zdb_nicenum(doi.doi_max_offset, lsize);
1553 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1554 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1555 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1556 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1557 doi.doi_max_offset);
1558
1559 aux[0] = '\0';
1560
1561 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1562 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1563 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1564 }
1565
1566 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1567 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1568 ZDB_COMPRESS_NAME(doi.doi_compress));
1569 }
1570
1571 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1572 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1573 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1574
1575 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1576 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1577 "", "", "", "", "", bonus_size, "bonus",
1578 ZDB_OT_NAME(doi.doi_bonus_type));
1579 }
1580
1581 if (verbosity >= 4) {
1582 (void) printf("\tdnode flags: %s%s%s\n",
1583 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1584 "USED_BYTES " : "",
1585 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1586 "USERUSED_ACCOUNTED " : "",
1587 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1588 "SPILL_BLKPTR" : "");
1589 (void) printf("\tdnode maxblkid: %llu\n",
1590 (longlong_t)dn->dn_phys->dn_maxblkid);
1591
1592 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1593 bonus, bsize);
1594 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1595 *print_header = 1;
1596 }
1597
1598 if (verbosity >= 5)
1599 dump_indirect(dn);
1600
1601 if (verbosity >= 5) {
1602 /*
1603 * Report the list of segments that comprise the object.
1604 */
1605 uint64_t start = 0;
1606 uint64_t end;
1607 uint64_t blkfill = 1;
1608 int minlvl = 1;
1609
1610 if (dn->dn_type == DMU_OT_DNODE) {
1611 minlvl = 0;
1612 blkfill = DNODES_PER_BLOCK;
1613 }
1614
1615 for (;;) {
1616 char segsize[32];
1617 error = dnode_next_offset(dn,
1618 0, &start, minlvl, blkfill, 0);
1619 if (error)
1620 break;
1621 end = start;
1622 error = dnode_next_offset(dn,
1623 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1624 zdb_nicenum(end - start, segsize);
1625 (void) printf("\t\tsegment [%016llx, %016llx)"
1626 " size %5s\n", (u_longlong_t)start,
1627 (u_longlong_t)end, segsize);
1628 if (error)
1629 break;
1630 start = end;
1631 }
1632 }
1633
1634 if (db != NULL)
1635 dmu_buf_rele(db, FTAG);
1636 }
1637
1638 static char *objset_types[DMU_OST_NUMTYPES] = {
1639 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1640
1641 static void
1642 dump_dir(objset_t *os)
1643 {
1644 dmu_objset_stats_t dds;
1645 uint64_t object, object_count;
1646 uint64_t refdbytes, usedobjs, scratch;
1647 char numbuf[32];
1648 char blkbuf[BP_SPRINTF_LEN + 20];
1649 char osname[MAXNAMELEN];
1650 char *type = "UNKNOWN";
1651 int verbosity = dump_opt['d'];
1652 int print_header = 1;
1653 int i, error;
1654
1655 dmu_objset_fast_stat(os, &dds);
1656
1657 if (dds.dds_type < DMU_OST_NUMTYPES)
1658 type = objset_types[dds.dds_type];
1659
1660 if (dds.dds_type == DMU_OST_META) {
1661 dds.dds_creation_txg = TXG_INITIAL;
1662 usedobjs = os->os_rootbp->blk_fill;
1663 refdbytes = os->os_spa->spa_dsl_pool->
1664 dp_mos_dir->dd_phys->dd_used_bytes;
1665 } else {
1666 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1667 }
1668
1669 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill);
1670
1671 zdb_nicenum(refdbytes, numbuf);
1672
1673 if (verbosity >= 4) {
1674 (void) sprintf(blkbuf, ", rootbp ");
1675 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp);
1676 } else {
1677 blkbuf[0] = '\0';
1678 }
1679
1680 dmu_objset_name(os, osname);
1681
1682 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1683 "%s, %llu objects%s\n",
1684 osname, type, (u_longlong_t)dmu_objset_id(os),
1685 (u_longlong_t)dds.dds_creation_txg,
1686 numbuf, (u_longlong_t)usedobjs, blkbuf);
1687
1688 if (zopt_objects != 0) {
1689 for (i = 0; i < zopt_objects; i++)
1690 dump_object(os, zopt_object[i], verbosity,
1691 &print_header);
1692 (void) printf("\n");
1693 return;
1694 }
1695
1696 if (dump_opt['i'] != 0 || verbosity >= 2)
1697 dump_intent_log(dmu_objset_zil(os));
1698
1699 if (dmu_objset_ds(os) != NULL)
1700 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1701
1702 if (verbosity < 2)
1703 return;
1704
1705 if (os->os_rootbp->blk_birth == 0)
1706 return;
1707
1708 dump_object(os, 0, verbosity, &print_header);
1709 object_count = 0;
1710 if (DMU_USERUSED_DNODE(os) != NULL &&
1711 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1712 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1713 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1714 }
1715
1716 object = 0;
1717 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1718 dump_object(os, object, verbosity, &print_header);
1719 object_count++;
1720 }
1721
1722 ASSERT3U(object_count, ==, usedobjs);
1723
1724 (void) printf("\n");
1725
1726 if (error != ESRCH) {
1727 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1728 abort();
1729 }
1730 }
1731
1732 static void
1733 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
1734 {
1735 time_t timestamp = ub->ub_timestamp;
1736
1737 (void) printf(header ? header : "");
1738 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1739 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1740 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1741 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1742 (void) printf("\ttimestamp = %llu UTC = %s",
1743 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
1744 if (dump_opt['u'] >= 3) {
1745 char blkbuf[BP_SPRINTF_LEN];
1746 sprintf_blkptr(blkbuf, &ub->ub_rootbp);
1747 (void) printf("\trootbp = %s\n", blkbuf);
1748 }
1749 (void) printf(footer ? footer : "");
1750 }
1751
1752 static void
1753 dump_config(spa_t *spa)
1754 {
1755 dmu_buf_t *db;
1756 size_t nvsize = 0;
1757 int error = 0;
1758
1759
1760 error = dmu_bonus_hold(spa->spa_meta_objset,
1761 spa->spa_config_object, FTAG, &db);
1762
1763 if (error == 0) {
1764 nvsize = *(uint64_t *)db->db_data;
1765 dmu_buf_rele(db, FTAG);
1766
1767 (void) printf("\nMOS Configuration:\n");
1768 dump_packed_nvlist(spa->spa_meta_objset,
1769 spa->spa_config_object, (void *)&nvsize, 1);
1770 } else {
1771 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
1772 (u_longlong_t)spa->spa_config_object, error);
1773 }
1774 }
1775
1776 static void
1777 dump_cachefile(const char *cachefile)
1778 {
1779 int fd;
1780 struct stat64 statbuf;
1781 char *buf;
1782 nvlist_t *config;
1783
1784 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1785 (void) printf("cannot open '%s': %s\n", cachefile,
1786 strerror(errno));
1787 exit(1);
1788 }
1789
1790 if (fstat64(fd, &statbuf) != 0) {
1791 (void) printf("failed to stat '%s': %s\n", cachefile,
1792 strerror(errno));
1793 exit(1);
1794 }
1795
1796 if ((buf = malloc(statbuf.st_size)) == NULL) {
1797 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
1798 (u_longlong_t)statbuf.st_size);
1799 exit(1);
1800 }
1801
1802 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1803 (void) fprintf(stderr, "failed to read %llu bytes\n",
1804 (u_longlong_t)statbuf.st_size);
1805 exit(1);
1806 }
1807
1808 (void) close(fd);
1809
1810 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
1811 (void) fprintf(stderr, "failed to unpack nvlist\n");
1812 exit(1);
1813 }
1814
1815 free(buf);
1816
1817 dump_nvlist(config, 0);
1818
1819 nvlist_free(config);
1820 }
1821
1822 #define ZDB_MAX_UB_HEADER_SIZE 32
1823
1824 static void
1825 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
1826 {
1827 vdev_t vd;
1828 vdev_t *vdp = &vd;
1829 char header[ZDB_MAX_UB_HEADER_SIZE];
1830
1831 vd.vdev_ashift = ashift;
1832 vdp->vdev_top = vdp;
1833
1834 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
1835 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
1836 uberblock_t *ub = (void *)((char *)lbl + uoff);
1837
1838 if (uberblock_verify(ub))
1839 continue;
1840 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
1841 "Uberblock[%d]\n", i);
1842 dump_uberblock(ub, header, "");
1843 }
1844 }
1845
1846 static void
1847 dump_label(const char *dev)
1848 {
1849 int fd;
1850 vdev_label_t label;
1851 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
1852 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
1853 struct stat64 statbuf;
1854 uint64_t psize, ashift;
1855 int len = strlen(dev) + 1;
1856
1857 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
1858 len++;
1859 path = malloc(len);
1860 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
1861 } else {
1862 path = strdup(dev);
1863 }
1864
1865 if ((fd = open64(path, O_RDONLY)) < 0) {
1866 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
1867 free(path);
1868 exit(1);
1869 }
1870
1871 if (fstat64(fd, &statbuf) != 0) {
1872 (void) printf("failed to stat '%s': %s\n", path,
1873 strerror(errno));
1874 free(path);
1875 (void) close(fd);
1876 exit(1);
1877 }
1878
1879 if (S_ISBLK(statbuf.st_mode)) {
1880 (void) printf("cannot use '%s': character device required\n",
1881 path);
1882 free(path);
1883 (void) close(fd);
1884 exit(1);
1885 }
1886
1887 psize = statbuf.st_size;
1888 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
1889
1890 for (int l = 0; l < VDEV_LABELS; l++) {
1891 nvlist_t *config = NULL;
1892
1893 (void) printf("--------------------------------------------\n");
1894 (void) printf("LABEL %d\n", l);
1895 (void) printf("--------------------------------------------\n");
1896
1897 if (pread64(fd, &label, sizeof (label),
1898 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
1899 (void) printf("failed to read label %d\n", l);
1900 continue;
1901 }
1902
1903 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
1904 (void) printf("failed to unpack label %d\n", l);
1905 ashift = SPA_MINBLOCKSHIFT;
1906 } else {
1907 nvlist_t *vdev_tree = NULL;
1908
1909 dump_nvlist(config, 4);
1910 if ((nvlist_lookup_nvlist(config,
1911 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
1912 (nvlist_lookup_uint64(vdev_tree,
1913 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
1914 ashift = SPA_MINBLOCKSHIFT;
1915 nvlist_free(config);
1916 }
1917 if (dump_opt['u'])
1918 dump_label_uberblocks(&label, ashift);
1919 }
1920
1921 free(path);
1922 (void) close(fd);
1923 }
1924
1925 /*ARGSUSED*/
1926 static int
1927 dump_one_dir(const char *dsname, void *arg)
1928 {
1929 int error;
1930 objset_t *os;
1931
1932 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
1933 if (error) {
1934 (void) printf("Could not open %s, error %d\n", dsname, error);
1935 return (0);
1936 }
1937 dump_dir(os);
1938 dmu_objset_disown(os, FTAG);
1939 fuid_table_destroy();
1940 sa_loaded = B_FALSE;
1941 return (0);
1942 }
1943
1944 /*
1945 * Block statistics.
1946 */
1947 typedef struct zdb_blkstats {
1948 uint64_t zb_asize;
1949 uint64_t zb_lsize;
1950 uint64_t zb_psize;
1951 uint64_t zb_count;
1952 } zdb_blkstats_t;
1953
1954 /*
1955 * Extended object types to report deferred frees and dedup auto-ditto blocks.
1956 */
1957 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
1958 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
1959 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
1960 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
1961
1962 static char *zdb_ot_extname[] = {
1963 "deferred free",
1964 "dedup ditto",
1965 "other",
1966 "Total",
1967 };
1968
1969 #define ZB_TOTAL DN_MAX_LEVELS
1970
1971 typedef struct zdb_cb {
1972 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
1973 uint64_t zcb_dedup_asize;
1974 uint64_t zcb_dedup_blocks;
1975 uint64_t zcb_errors[256];
1976 int zcb_readfails;
1977 int zcb_haderrors;
1978 spa_t *zcb_spa;
1979 } zdb_cb_t;
1980
1981 static void
1982 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
1983 dmu_object_type_t type)
1984 {
1985 uint64_t refcnt = 0;
1986
1987 ASSERT(type < ZDB_OT_TOTAL);
1988
1989 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
1990 return;
1991
1992 for (int i = 0; i < 4; i++) {
1993 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
1994 int t = (i & 1) ? type : ZDB_OT_TOTAL;
1995 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
1996
1997 zb->zb_asize += BP_GET_ASIZE(bp);
1998 zb->zb_lsize += BP_GET_LSIZE(bp);
1999 zb->zb_psize += BP_GET_PSIZE(bp);
2000 zb->zb_count++;
2001 }
2002
2003 if (dump_opt['L'])
2004 return;
2005
2006 if (BP_GET_DEDUP(bp)) {
2007 ddt_t *ddt;
2008 ddt_entry_t *dde;
2009
2010 ddt = ddt_select(zcb->zcb_spa, bp);
2011 ddt_enter(ddt);
2012 dde = ddt_lookup(ddt, bp, B_FALSE);
2013
2014 if (dde == NULL) {
2015 refcnt = 0;
2016 } else {
2017 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2018 ddt_phys_decref(ddp);
2019 refcnt = ddp->ddp_refcnt;
2020 if (ddt_phys_total_refcnt(dde) == 0)
2021 ddt_remove(ddt, dde);
2022 }
2023 ddt_exit(ddt);
2024 }
2025
2026 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2027 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2028 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2029 }
2030
2031 /* ARGSUSED */
2032 static int
2033 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, arc_buf_t *pbuf,
2034 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2035 {
2036 zdb_cb_t *zcb = arg;
2037 char blkbuf[BP_SPRINTF_LEN];
2038 dmu_object_type_t type;
2039 boolean_t is_metadata;
2040
2041 if (bp == NULL)
2042 return (0);
2043
2044 type = BP_GET_TYPE(bp);
2045
2046 zdb_count_block(zcb, zilog, bp,
2047 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2048
2049 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2050
2051 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) {
2052 int ioerr;
2053 size_t size = BP_GET_PSIZE(bp);
2054 void *data = malloc(size);
2055 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2056
2057 /* If it's an intent log block, failure is expected. */
2058 if (zb->zb_level == ZB_ZIL_LEVEL)
2059 flags |= ZIO_FLAG_SPECULATIVE;
2060
2061 ioerr = zio_wait(zio_read(NULL, spa, bp, data, size,
2062 NULL, NULL, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2063
2064 free(data);
2065
2066 if (ioerr && !(flags & ZIO_FLAG_SPECULATIVE)) {
2067 zcb->zcb_haderrors = 1;
2068 zcb->zcb_errors[ioerr]++;
2069
2070 if (dump_opt['b'] >= 2)
2071 sprintf_blkptr(blkbuf, bp);
2072 else
2073 blkbuf[0] = '\0';
2074
2075 (void) printf("zdb_blkptr_cb: "
2076 "Got error %d reading "
2077 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2078 ioerr,
2079 (u_longlong_t)zb->zb_objset,
2080 (u_longlong_t)zb->zb_object,
2081 (u_longlong_t)zb->zb_level,
2082 (u_longlong_t)zb->zb_blkid,
2083 blkbuf);
2084 }
2085 }
2086
2087 zcb->zcb_readfails = 0;
2088
2089 if (dump_opt['b'] >= 4) {
2090 sprintf_blkptr(blkbuf, bp);
2091 (void) printf("objset %llu object %llu "
2092 "level %lld offset 0x%llx %s\n",
2093 (u_longlong_t)zb->zb_objset,
2094 (u_longlong_t)zb->zb_object,
2095 (longlong_t)zb->zb_level,
2096 (u_longlong_t)blkid2offset(dnp, bp, zb),
2097 blkbuf);
2098 }
2099
2100 return (0);
2101 }
2102
2103 static void
2104 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size)
2105 {
2106 vdev_t *vd = sm->sm_ppd;
2107
2108 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2109 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2110 }
2111
2112 /* ARGSUSED */
2113 static void
2114 zdb_space_map_load(space_map_t *sm)
2115 {
2116 }
2117
2118 static void
2119 zdb_space_map_unload(space_map_t *sm)
2120 {
2121 space_map_vacate(sm, zdb_leak, sm);
2122 }
2123
2124 /* ARGSUSED */
2125 static void
2126 zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size)
2127 {
2128 }
2129
2130 static space_map_ops_t zdb_space_map_ops = {
2131 zdb_space_map_load,
2132 zdb_space_map_unload,
2133 NULL, /* alloc */
2134 zdb_space_map_claim,
2135 NULL, /* free */
2136 NULL /* maxsize */
2137 };
2138
2139 static void
2140 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2141 {
2142 ddt_bookmark_t ddb = { 0 };
2143 ddt_entry_t dde;
2144 int error;
2145
2146 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2147 blkptr_t blk;
2148 ddt_phys_t *ddp = dde.dde_phys;
2149
2150 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2151 return;
2152
2153 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2154
2155 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2156 if (ddp->ddp_phys_birth == 0)
2157 continue;
2158 ddt_bp_create(ddb.ddb_checksum,
2159 &dde.dde_key, ddp, &blk);
2160 if (p == DDT_PHYS_DITTO) {
2161 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2162 } else {
2163 zcb->zcb_dedup_asize +=
2164 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2165 zcb->zcb_dedup_blocks++;
2166 }
2167 }
2168 if (!dump_opt['L']) {
2169 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2170 ddt_enter(ddt);
2171 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2172 ddt_exit(ddt);
2173 }
2174 }
2175
2176 ASSERT(error == ENOENT);
2177 }
2178
2179 static void
2180 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2181 {
2182 zcb->zcb_spa = spa;
2183
2184 if (!dump_opt['L']) {
2185 vdev_t *rvd = spa->spa_root_vdev;
2186 for (int c = 0; c < rvd->vdev_children; c++) {
2187 vdev_t *vd = rvd->vdev_child[c];
2188 for (int m = 0; m < vd->vdev_ms_count; m++) {
2189 metaslab_t *msp = vd->vdev_ms[m];
2190 mutex_enter(&msp->ms_lock);
2191 space_map_unload(&msp->ms_map);
2192 VERIFY(space_map_load(&msp->ms_map,
2193 &zdb_space_map_ops, SM_ALLOC, &msp->ms_smo,
2194 spa->spa_meta_objset) == 0);
2195 msp->ms_map.sm_ppd = vd;
2196 mutex_exit(&msp->ms_lock);
2197 }
2198 }
2199 }
2200
2201 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2202
2203 zdb_ddt_leak_init(spa, zcb);
2204
2205 spa_config_exit(spa, SCL_CONFIG, FTAG);
2206 }
2207
2208 static void
2209 zdb_leak_fini(spa_t *spa)
2210 {
2211 if (!dump_opt['L']) {
2212 vdev_t *rvd = spa->spa_root_vdev;
2213 for (int c = 0; c < rvd->vdev_children; c++) {
2214 vdev_t *vd = rvd->vdev_child[c];
2215 for (int m = 0; m < vd->vdev_ms_count; m++) {
2216 metaslab_t *msp = vd->vdev_ms[m];
2217 mutex_enter(&msp->ms_lock);
2218 space_map_unload(&msp->ms_map);
2219 mutex_exit(&msp->ms_lock);
2220 }
2221 }
2222 }
2223 }
2224
2225 /* ARGSUSED */
2226 static int
2227 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2228 {
2229 zdb_cb_t *zcb = arg;
2230
2231 if (dump_opt['b'] >= 4) {
2232 char blkbuf[BP_SPRINTF_LEN];
2233 sprintf_blkptr(blkbuf, bp);
2234 (void) printf("[%s] %s\n",
2235 "deferred free", blkbuf);
2236 }
2237 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2238 return (0);
2239 }
2240
2241 static int
2242 dump_block_stats(spa_t *spa)
2243 {
2244 zdb_cb_t zcb = { 0 };
2245 zdb_blkstats_t *zb, *tzb;
2246 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2247 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2248 int leaks = 0;
2249
2250 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n",
2251 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2252 (dump_opt['c'] == 1) ? "metadata " : "",
2253 dump_opt['c'] ? "checksums " : "",
2254 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2255 !dump_opt['L'] ? "nothing leaked " : "");
2256
2257 /*
2258 * Load all space maps as SM_ALLOC maps, then traverse the pool
2259 * claiming each block we discover. If the pool is perfectly
2260 * consistent, the space maps will be empty when we're done.
2261 * Anything left over is a leak; any block we can't claim (because
2262 * it's not part of any space map) is a double allocation,
2263 * reference to a freed block, or an unclaimed log block.
2264 */
2265 zdb_leak_init(spa, &zcb);
2266
2267 /*
2268 * If there's a deferred-free bplist, process that first.
2269 */
2270 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2271 count_block_cb, &zcb, NULL);
2272 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2273 count_block_cb, &zcb, NULL);
2274 if (spa_feature_is_active(spa,
2275 &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) {
2276 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2277 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2278 &zcb, NULL));
2279 }
2280
2281 if (dump_opt['c'] > 1)
2282 flags |= TRAVERSE_PREFETCH_DATA;
2283
2284 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2285
2286 if (zcb.zcb_haderrors) {
2287 (void) printf("\nError counts:\n\n");
2288 (void) printf("\t%5s %s\n", "errno", "count");
2289 for (int e = 0; e < 256; e++) {
2290 if (zcb.zcb_errors[e] != 0) {
2291 (void) printf("\t%5d %llu\n",
2292 e, (u_longlong_t)zcb.zcb_errors[e]);
2293 }
2294 }
2295 }
2296
2297 /*
2298 * Report any leaked segments.
2299 */
2300 zdb_leak_fini(spa);
2301
2302 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2303
2304 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2305 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2306
2307 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2308 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2309
2310 if (total_found == total_alloc) {
2311 if (!dump_opt['L'])
2312 (void) printf("\n\tNo leaks (block sum matches space"
2313 " maps exactly)\n");
2314 } else {
2315 (void) printf("block traversal size %llu != alloc %llu "
2316 "(%s %lld)\n",
2317 (u_longlong_t)total_found,
2318 (u_longlong_t)total_alloc,
2319 (dump_opt['L']) ? "unreachable" : "leaked",
2320 (longlong_t)(total_alloc - total_found));
2321 leaks = 1;
2322 }
2323
2324 if (tzb->zb_count == 0)
2325 return (2);
2326
2327 (void) printf("\n");
2328 (void) printf("\tbp count: %10llu\n",
2329 (u_longlong_t)tzb->zb_count);
2330 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2331 (u_longlong_t)tzb->zb_lsize,
2332 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2333 (void) printf("\tbp physical: %10llu avg:"
2334 " %6llu compression: %6.2f\n",
2335 (u_longlong_t)tzb->zb_psize,
2336 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2337 (double)tzb->zb_lsize / tzb->zb_psize);
2338 (void) printf("\tbp allocated: %10llu avg:"
2339 " %6llu compression: %6.2f\n",
2340 (u_longlong_t)tzb->zb_asize,
2341 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2342 (double)tzb->zb_lsize / tzb->zb_asize);
2343 (void) printf("\tbp deduped: %10llu ref>1:"
2344 " %6llu deduplication: %6.2f\n",
2345 (u_longlong_t)zcb.zcb_dedup_asize,
2346 (u_longlong_t)zcb.zcb_dedup_blocks,
2347 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2348 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2349 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2350
2351 if (dump_opt['b'] >= 2) {
2352 int l, t, level;
2353 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2354 "\t avg\t comp\t%%Total\tType\n");
2355
2356 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2357 char csize[32], lsize[32], psize[32], asize[32];
2358 char avg[32];
2359 char *typename;
2360
2361 if (t < DMU_OT_NUMTYPES)
2362 typename = dmu_ot[t].ot_name;
2363 else
2364 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2365
2366 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2367 (void) printf("%6s\t%5s\t%5s\t%5s"
2368 "\t%5s\t%5s\t%6s\t%s\n",
2369 "-",
2370 "-",
2371 "-",
2372 "-",
2373 "-",
2374 "-",
2375 "-",
2376 typename);
2377 continue;
2378 }
2379
2380 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2381 level = (l == -1 ? ZB_TOTAL : l);
2382 zb = &zcb.zcb_type[level][t];
2383
2384 if (zb->zb_asize == 0)
2385 continue;
2386
2387 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2388 continue;
2389
2390 if (level == 0 && zb->zb_asize ==
2391 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2392 continue;
2393
2394 zdb_nicenum(zb->zb_count, csize);
2395 zdb_nicenum(zb->zb_lsize, lsize);
2396 zdb_nicenum(zb->zb_psize, psize);
2397 zdb_nicenum(zb->zb_asize, asize);
2398 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2399
2400 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2401 "\t%5.2f\t%6.2f\t",
2402 csize, lsize, psize, asize, avg,
2403 (double)zb->zb_lsize / zb->zb_psize,
2404 100.0 * zb->zb_asize / tzb->zb_asize);
2405
2406 if (level == ZB_TOTAL)
2407 (void) printf("%s\n", typename);
2408 else
2409 (void) printf(" L%d %s\n",
2410 level, typename);
2411 }
2412 }
2413 }
2414
2415 (void) printf("\n");
2416
2417 if (leaks)
2418 return (2);
2419
2420 if (zcb.zcb_haderrors)
2421 return (3);
2422
2423 return (0);
2424 }
2425
2426 typedef struct zdb_ddt_entry {
2427 ddt_key_t zdde_key;
2428 uint64_t zdde_ref_blocks;
2429 uint64_t zdde_ref_lsize;
2430 uint64_t zdde_ref_psize;
2431 uint64_t zdde_ref_dsize;
2432 avl_node_t zdde_node;
2433 } zdb_ddt_entry_t;
2434
2435 /* ARGSUSED */
2436 static int
2437 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2438 arc_buf_t *pbuf, const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2439 {
2440 avl_tree_t *t = arg;
2441 avl_index_t where;
2442 zdb_ddt_entry_t *zdde, zdde_search;
2443
2444 if (bp == NULL)
2445 return (0);
2446
2447 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2448 (void) printf("traversing objset %llu, %llu objects, "
2449 "%lu blocks so far\n",
2450 (u_longlong_t)zb->zb_objset,
2451 (u_longlong_t)bp->blk_fill,
2452 avl_numnodes(t));
2453 }
2454
2455 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2456 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2457 return (0);
2458
2459 ddt_key_fill(&zdde_search.zdde_key, bp);
2460
2461 zdde = avl_find(t, &zdde_search, &where);
2462
2463 if (zdde == NULL) {
2464 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2465 zdde->zdde_key = zdde_search.zdde_key;
2466 avl_insert(t, zdde, where);
2467 }
2468
2469 zdde->zdde_ref_blocks += 1;
2470 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2471 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2472 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2473
2474 return (0);
2475 }
2476
2477 static void
2478 dump_simulated_ddt(spa_t *spa)
2479 {
2480 avl_tree_t t;
2481 void *cookie = NULL;
2482 zdb_ddt_entry_t *zdde;
2483 ddt_histogram_t ddh_total = { 0 };
2484 ddt_stat_t dds_total = { 0 };
2485
2486 avl_create(&t, ddt_entry_compare,
2487 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2488
2489 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2490
2491 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2492 zdb_ddt_add_cb, &t);
2493
2494 spa_config_exit(spa, SCL_CONFIG, FTAG);
2495
2496 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2497 ddt_stat_t dds;
2498 uint64_t refcnt = zdde->zdde_ref_blocks;
2499 ASSERT(refcnt != 0);
2500
2501 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2502 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2503 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2504 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2505
2506 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2507 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2508 dds.dds_ref_psize = zdde->zdde_ref_psize;
2509 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2510
2511 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0);
2512
2513 umem_free(zdde, sizeof (*zdde));
2514 }
2515
2516 avl_destroy(&t);
2517
2518 ddt_histogram_stat(&dds_total, &ddh_total);
2519
2520 (void) printf("Simulated DDT histogram:\n");
2521
2522 zpool_dump_ddt(&dds_total, &ddh_total);
2523
2524 dump_dedup_ratio(&dds_total);
2525 }
2526
2527 static void
2528 dump_zpool(spa_t *spa)
2529 {
2530 dsl_pool_t *dp = spa_get_dsl(spa);
2531 int rc = 0;
2532
2533 if (dump_opt['S']) {
2534 dump_simulated_ddt(spa);
2535 return;
2536 }
2537
2538 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2539 (void) printf("\nCached configuration:\n");
2540 dump_nvlist(spa->spa_config, 8);
2541 }
2542
2543 if (dump_opt['C'])
2544 dump_config(spa);
2545
2546 if (dump_opt['u'])
2547 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2548
2549 if (dump_opt['D'])
2550 dump_all_ddts(spa);
2551
2552 if (dump_opt['d'] > 2 || dump_opt['m'])
2553 dump_metaslabs(spa);
2554
2555 if (dump_opt['d'] || dump_opt['i']) {
2556 dump_dir(dp->dp_meta_objset);
2557 if (dump_opt['d'] >= 3) {
2558 dump_bpobj(&spa->spa_deferred_bpobj, "Deferred frees");
2559 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2560 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2561 "Pool snapshot frees");
2562 }
2563
2564 if (spa_feature_is_active(spa,
2565 &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) {
2566 dump_bptree(spa->spa_meta_objset,
2567 spa->spa_dsl_pool->dp_bptree_obj,
2568 "Pool dataset frees");
2569 }
2570 dump_dtl(spa->spa_root_vdev, 0);
2571 }
2572 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
2573 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
2574 }
2575 if (dump_opt['b'] || dump_opt['c'])
2576 rc = dump_block_stats(spa);
2577
2578 if (dump_opt['s'])
2579 show_pool_stats(spa);
2580
2581 if (dump_opt['h'])
2582 dump_history(spa);
2583
2584 if (rc != 0)
2585 exit(rc);
2586 }
2587
2588 #define ZDB_FLAG_CHECKSUM 0x0001
2589 #define ZDB_FLAG_DECOMPRESS 0x0002
2590 #define ZDB_FLAG_BSWAP 0x0004
2591 #define ZDB_FLAG_GBH 0x0008
2592 #define ZDB_FLAG_INDIRECT 0x0010
2593 #define ZDB_FLAG_PHYS 0x0020
2594 #define ZDB_FLAG_RAW 0x0040
2595 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
2596
2597 int flagbits[256];
2598
2599 static void
2600 zdb_print_blkptr(blkptr_t *bp, int flags)
2601 {
2602 char blkbuf[BP_SPRINTF_LEN];
2603
2604 if (flags & ZDB_FLAG_BSWAP)
2605 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
2606
2607 sprintf_blkptr(blkbuf, bp);
2608 (void) printf("%s\n", blkbuf);
2609 }
2610
2611 static void
2612 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
2613 {
2614 int i;
2615
2616 for (i = 0; i < nbps; i++)
2617 zdb_print_blkptr(&bp[i], flags);
2618 }
2619
2620 static void
2621 zdb_dump_gbh(void *buf, int flags)
2622 {
2623 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
2624 }
2625
2626 static void
2627 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
2628 {
2629 if (flags & ZDB_FLAG_BSWAP)
2630 byteswap_uint64_array(buf, size);
2631 (void) write(1, buf, size);
2632 }
2633
2634 static void
2635 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
2636 {
2637 uint64_t *d = (uint64_t *)buf;
2638 int nwords = size / sizeof (uint64_t);
2639 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
2640 int i, j;
2641 char *hdr, *c;
2642
2643
2644 if (do_bswap)
2645 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
2646 else
2647 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
2648
2649 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
2650
2651 for (i = 0; i < nwords; i += 2) {
2652 (void) printf("%06llx: %016llx %016llx ",
2653 (u_longlong_t)(i * sizeof (uint64_t)),
2654 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
2655 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
2656
2657 c = (char *)&d[i];
2658 for (j = 0; j < 2 * sizeof (uint64_t); j++)
2659 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
2660 (void) printf("\n");
2661 }
2662 }
2663
2664 /*
2665 * There are two acceptable formats:
2666 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
2667 * child[.child]* - For example: 0.1.1
2668 *
2669 * The second form can be used to specify arbitrary vdevs anywhere
2670 * in the heirarchy. For example, in a pool with a mirror of
2671 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
2672 */
2673 static vdev_t *
2674 zdb_vdev_lookup(vdev_t *vdev, char *path)
2675 {
2676 char *s, *p, *q;
2677 int i;
2678
2679 if (vdev == NULL)
2680 return (NULL);
2681
2682 /* First, assume the x.x.x.x format */
2683 i = (int)strtoul(path, &s, 10);
2684 if (s == path || (s && *s != '.' && *s != '\0'))
2685 goto name;
2686 if (i < 0 || i >= vdev->vdev_children)
2687 return (NULL);
2688
2689 vdev = vdev->vdev_child[i];
2690 if (*s == '\0')
2691 return (vdev);
2692 return (zdb_vdev_lookup(vdev, s+1));
2693
2694 name:
2695 for (i = 0; i < vdev->vdev_children; i++) {
2696 vdev_t *vc = vdev->vdev_child[i];
2697
2698 if (vc->vdev_path == NULL) {
2699 vc = zdb_vdev_lookup(vc, path);
2700 if (vc == NULL)
2701 continue;
2702 else
2703 return (vc);
2704 }
2705
2706 p = strrchr(vc->vdev_path, '/');
2707 p = p ? p + 1 : vc->vdev_path;
2708 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
2709
2710 if (strcmp(vc->vdev_path, path) == 0)
2711 return (vc);
2712 if (strcmp(p, path) == 0)
2713 return (vc);
2714 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
2715 return (vc);
2716 }
2717
2718 return (NULL);
2719 }
2720
2721 /*
2722 * Read a block from a pool and print it out. The syntax of the
2723 * block descriptor is:
2724 *
2725 * pool:vdev_specifier:offset:size[:flags]
2726 *
2727 * pool - The name of the pool you wish to read from
2728 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
2729 * offset - offset, in hex, in bytes
2730 * size - Amount of data to read, in hex, in bytes
2731 * flags - A string of characters specifying options
2732 * b: Decode a blkptr at given offset within block
2733 * *c: Calculate and display checksums
2734 * d: Decompress data before dumping
2735 * e: Byteswap data before dumping
2736 * g: Display data as a gang block header
2737 * i: Display as an indirect block
2738 * p: Do I/O to physical offset
2739 * r: Dump raw data to stdout
2740 *
2741 * * = not yet implemented
2742 */
2743 static void
2744 zdb_read_block(char *thing, spa_t *spa)
2745 {
2746 blkptr_t blk, *bp = &blk;
2747 dva_t *dva = bp->blk_dva;
2748 int flags = 0;
2749 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
2750 zio_t *zio;
2751 vdev_t *vd;
2752 void *pbuf, *lbuf, *buf;
2753 char *s, *p, *dup, *vdev, *flagstr;
2754 int i, error;
2755
2756 dup = strdup(thing);
2757 s = strtok(dup, ":");
2758 vdev = s ? s : "";
2759 s = strtok(NULL, ":");
2760 offset = strtoull(s ? s : "", NULL, 16);
2761 s = strtok(NULL, ":");
2762 size = strtoull(s ? s : "", NULL, 16);
2763 s = strtok(NULL, ":");
2764 flagstr = s ? s : "";
2765
2766 s = NULL;
2767 if (size == 0)
2768 s = "size must not be zero";
2769 if (!IS_P2ALIGNED(size, DEV_BSIZE))
2770 s = "size must be a multiple of sector size";
2771 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
2772 s = "offset must be a multiple of sector size";
2773 if (s) {
2774 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
2775 free(dup);
2776 return;
2777 }
2778
2779 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
2780 for (i = 0; flagstr[i]; i++) {
2781 int bit = flagbits[(uchar_t)flagstr[i]];
2782
2783 if (bit == 0) {
2784 (void) printf("***Invalid flag: %c\n",
2785 flagstr[i]);
2786 continue;
2787 }
2788 flags |= bit;
2789
2790 /* If it's not something with an argument, keep going */
2791 if ((bit & (ZDB_FLAG_CHECKSUM |
2792 ZDB_FLAG_PRINT_BLKPTR)) == 0)
2793 continue;
2794
2795 p = &flagstr[i + 1];
2796 if (bit == ZDB_FLAG_PRINT_BLKPTR)
2797 blkptr_offset = strtoull(p, &p, 16);
2798 if (*p != ':' && *p != '\0') {
2799 (void) printf("***Invalid flag arg: '%s'\n", s);
2800 free(dup);
2801 return;
2802 }
2803 }
2804 }
2805
2806 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
2807 if (vd == NULL) {
2808 (void) printf("***Invalid vdev: %s\n", vdev);
2809 free(dup);
2810 return;
2811 } else {
2812 if (vd->vdev_path)
2813 (void) fprintf(stderr, "Found vdev: %s\n",
2814 vd->vdev_path);
2815 else
2816 (void) fprintf(stderr, "Found vdev type: %s\n",
2817 vd->vdev_ops->vdev_op_type);
2818 }
2819
2820 psize = size;
2821 lsize = size;
2822
2823 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2824 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2825
2826 BP_ZERO(bp);
2827
2828 DVA_SET_VDEV(&dva[0], vd->vdev_id);
2829 DVA_SET_OFFSET(&dva[0], offset);
2830 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
2831 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
2832
2833 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
2834
2835 BP_SET_LSIZE(bp, lsize);
2836 BP_SET_PSIZE(bp, psize);
2837 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
2838 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
2839 BP_SET_TYPE(bp, DMU_OT_NONE);
2840 BP_SET_LEVEL(bp, 0);
2841 BP_SET_DEDUP(bp, 0);
2842 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
2843
2844 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
2845 zio = zio_root(spa, NULL, NULL, 0);
2846
2847 if (vd == vd->vdev_top) {
2848 /*
2849 * Treat this as a normal block read.
2850 */
2851 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
2852 ZIO_PRIORITY_SYNC_READ,
2853 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
2854 } else {
2855 /*
2856 * Treat this as a vdev child I/O.
2857 */
2858 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
2859 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
2860 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
2861 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
2862 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
2863 }
2864
2865 error = zio_wait(zio);
2866 spa_config_exit(spa, SCL_STATE, FTAG);
2867
2868 if (error) {
2869 (void) printf("Read of %s failed, error: %d\n", thing, error);
2870 goto out;
2871 }
2872
2873 if (flags & ZDB_FLAG_DECOMPRESS) {
2874 /*
2875 * We don't know how the data was compressed, so just try
2876 * every decompress function at every inflated blocksize.
2877 */
2878 enum zio_compress c;
2879 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2880 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2881
2882 bcopy(pbuf, pbuf2, psize);
2883
2884 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
2885 SPA_MAXBLOCKSIZE - psize) == 0);
2886
2887 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
2888 SPA_MAXBLOCKSIZE - psize) == 0);
2889
2890 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
2891 lsize -= SPA_MINBLOCKSIZE) {
2892 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
2893 if (zio_decompress_data(c, pbuf, lbuf,
2894 psize, lsize) == 0 &&
2895 zio_decompress_data(c, pbuf2, lbuf2,
2896 psize, lsize) == 0 &&
2897 bcmp(lbuf, lbuf2, lsize) == 0)
2898 break;
2899 }
2900 if (c != ZIO_COMPRESS_FUNCTIONS)
2901 break;
2902 lsize -= SPA_MINBLOCKSIZE;
2903 }
2904
2905 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
2906 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
2907
2908 if (lsize <= psize) {
2909 (void) printf("Decompress of %s failed\n", thing);
2910 goto out;
2911 }
2912 buf = lbuf;
2913 size = lsize;
2914 } else {
2915 buf = pbuf;
2916 size = psize;
2917 }
2918
2919 if (flags & ZDB_FLAG_PRINT_BLKPTR)
2920 zdb_print_blkptr((blkptr_t *)(void *)
2921 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
2922 else if (flags & ZDB_FLAG_RAW)
2923 zdb_dump_block_raw(buf, size, flags);
2924 else if (flags & ZDB_FLAG_INDIRECT)
2925 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
2926 flags);
2927 else if (flags & ZDB_FLAG_GBH)
2928 zdb_dump_gbh(buf, flags);
2929 else
2930 zdb_dump_block(thing, buf, size, flags);
2931
2932 out:
2933 umem_free(pbuf, SPA_MAXBLOCKSIZE);
2934 umem_free(lbuf, SPA_MAXBLOCKSIZE);
2935 free(dup);
2936 }
2937
2938 static boolean_t
2939 pool_match(nvlist_t *cfg, char *tgt)
2940 {
2941 uint64_t v, guid = strtoull(tgt, NULL, 0);
2942 char *s;
2943
2944 if (guid != 0) {
2945 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
2946 return (v == guid);
2947 } else {
2948 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
2949 return (strcmp(s, tgt) == 0);
2950 }
2951 return (B_FALSE);
2952 }
2953
2954 static char *
2955 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
2956 {
2957 nvlist_t *pools;
2958 nvlist_t *match = NULL;
2959 char *name = NULL;
2960 char *sepp = NULL;
2961 char sep;
2962 int count = 0;
2963 importargs_t args = { 0 };
2964
2965 args.paths = dirc;
2966 args.path = dirv;
2967 args.can_be_active = B_TRUE;
2968
2969 if ((sepp = strpbrk(*target, "/@")) != NULL) {
2970 sep = *sepp;
2971 *sepp = '\0';
2972 }
2973
2974 pools = zpool_search_import(g_zfs, &args);
2975
2976 if (pools != NULL) {
2977 nvpair_t *elem = NULL;
2978 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
2979 verify(nvpair_value_nvlist(elem, configp) == 0);
2980 if (pool_match(*configp, *target)) {
2981 count++;
2982 if (match != NULL) {
2983 /* print previously found config */
2984 if (name != NULL) {
2985 (void) printf("%s\n", name);
2986 dump_nvlist(match, 8);
2987 name = NULL;
2988 }
2989 (void) printf("%s\n",
2990 nvpair_name(elem));
2991 dump_nvlist(*configp, 8);
2992 } else {
2993 match = *configp;
2994 name = nvpair_name(elem);
2995 }
2996 }
2997 }
2998 }
2999 if (count > 1)
3000 (void) fatal("\tMatched %d pools - use pool GUID "
3001 "instead of pool name or \n"
3002 "\tpool name part of a dataset name to select pool", count);
3003
3004 if (sepp)
3005 *sepp = sep;
3006 /*
3007 * If pool GUID was specified for pool id, replace it with pool name
3008 */
3009 if (name && (strstr(*target, name) != *target)) {
3010 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3011
3012 *target = umem_alloc(sz, UMEM_NOFAIL);
3013 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3014 }
3015
3016 *configp = name ? match : NULL;
3017
3018 return (name);
3019 }
3020
3021 int
3022 main(int argc, char **argv)
3023 {
3024 int i, c;
3025 struct rlimit rl = { 1024, 1024 };
3026 spa_t *spa = NULL;
3027 objset_t *os = NULL;
3028 int dump_all = 1;
3029 int verbose = 0;
3030 int error = 0;
3031 char **searchdirs = NULL;
3032 int nsearch = 0;
3033 char *target;
3034 nvlist_t *policy = NULL;
3035 uint64_t max_txg = UINT64_MAX;
3036 int rewind = ZPOOL_NEVER_REWIND;
3037
3038 (void) setrlimit(RLIMIT_NOFILE, &rl);
3039 (void) enable_extended_FILE_stdio(-1, -1);
3040
3041 dprintf_setup(&argc, argv);
3042
3043 while ((c = getopt(argc, argv, "bcdhilmsuCDRSAFLXevp:t:U:P")) != -1) {
3044 switch (c) {
3045 case 'b':
3046 case 'c':
3047 case 'd':
3048 case 'h':
3049 case 'i':
3050 case 'l':
3051 case 'm':
3052 case 's':
3053 case 'u':
3054 case 'C':
3055 case 'D':
3056 case 'R':
3057 case 'S':
3058 dump_opt[c]++;
3059 dump_all = 0;
3060 break;
3061 case 'A':
3062 case 'F':
3063 case 'L':
3064 case 'X':
3065 case 'e':
3066 case 'P':
3067 dump_opt[c]++;
3068 break;
3069 case 'v':
3070 verbose++;
3071 break;
3072 case 'p':
3073 if (searchdirs == NULL) {
3074 searchdirs = umem_alloc(sizeof (char *),
3075 UMEM_NOFAIL);
3076 } else {
3077 char **tmp = umem_alloc((nsearch + 1) *
3078 sizeof (char *), UMEM_NOFAIL);
3079 bcopy(searchdirs, tmp, nsearch *
3080 sizeof (char *));
3081 umem_free(searchdirs,
3082 nsearch * sizeof (char *));
3083 searchdirs = tmp;
3084 }
3085 searchdirs[nsearch++] = optarg;
3086 break;
3087 case 't':
3088 max_txg = strtoull(optarg, NULL, 0);
3089 if (max_txg < TXG_INITIAL) {
3090 (void) fprintf(stderr, "incorrect txg "
3091 "specified: %s\n", optarg);
3092 usage();
3093 }
3094 break;
3095 case 'U':
3096 spa_config_path = optarg;
3097 break;
3098 default:
3099 usage();
3100 break;
3101 }
3102 }
3103
3104 if (!dump_opt['e'] && searchdirs != NULL) {
3105 (void) fprintf(stderr, "-p option requires use of -e\n");
3106 usage();
3107 }
3108
3109 kernel_init(FREAD);
3110 g_zfs = libzfs_init();
3111 ASSERT(g_zfs != NULL);
3112
3113 if (dump_all)
3114 verbose = MAX(verbose, 1);
3115
3116 for (c = 0; c < 256; c++) {
3117 if (dump_all && !strchr("elAFLRSXP", c))
3118 dump_opt[c] = 1;
3119 if (dump_opt[c])
3120 dump_opt[c] += verbose;
3121 }
3122
3123 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3124 zfs_recover = (dump_opt['A'] > 1);
3125
3126 argc -= optind;
3127 argv += optind;
3128
3129 if (argc < 2 && dump_opt['R'])
3130 usage();
3131 if (argc < 1) {
3132 if (!dump_opt['e'] && dump_opt['C']) {
3133 dump_cachefile(spa_config_path);
3134 return (0);
3135 }
3136 usage();
3137 }
3138
3139 if (dump_opt['l']) {
3140 dump_label(argv[0]);
3141 return (0);
3142 }
3143
3144 if (dump_opt['X'] || dump_opt['F'])
3145 rewind = ZPOOL_DO_REWIND |
3146 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3147
3148 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3149 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3150 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3151 fatal("internal error: %s", strerror(ENOMEM));
3152
3153 error = 0;
3154 target = argv[0];
3155
3156 if (dump_opt['e']) {
3157 nvlist_t *cfg = NULL;
3158 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3159
3160 error = ENOENT;
3161 if (name) {
3162 if (dump_opt['C'] > 1) {
3163 (void) printf("\nConfiguration for import:\n");
3164 dump_nvlist(cfg, 8);
3165 }
3166 if (nvlist_add_nvlist(cfg,
3167 ZPOOL_REWIND_POLICY, policy) != 0) {
3168 fatal("can't open '%s': %s",
3169 target, strerror(ENOMEM));
3170 }
3171 if ((error = spa_import(name, cfg, NULL,
3172 ZFS_IMPORT_MISSING_LOG)) != 0) {
3173 error = spa_import(name, cfg, NULL,
3174 ZFS_IMPORT_VERBATIM);
3175 }
3176 }
3177 }
3178
3179 if (error == 0) {
3180 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3181 error = spa_open_rewind(target, &spa, FTAG, policy,
3182 NULL);
3183 if (error) {
3184 /*
3185 * If we're missing the log device then
3186 * try opening the pool after clearing the
3187 * log state.
3188 */
3189 mutex_enter(&spa_namespace_lock);
3190 if ((spa = spa_lookup(target)) != NULL &&
3191 spa->spa_log_state == SPA_LOG_MISSING) {
3192 spa->spa_log_state = SPA_LOG_CLEAR;
3193 error = 0;
3194 }
3195 mutex_exit(&spa_namespace_lock);
3196
3197 if (!error) {
3198 error = spa_open_rewind(target, &spa,
3199 FTAG, policy, NULL);
3200 }
3201 }
3202 } else {
3203 error = dmu_objset_own(target, DMU_OST_ANY,
3204 B_TRUE, FTAG, &os);
3205 }
3206 }
3207 nvlist_free(policy);
3208
3209 if (error)
3210 fatal("can't open '%s': %s", target, strerror(error));
3211
3212 argv++;
3213 argc--;
3214 if (!dump_opt['R']) {
3215 if (argc > 0) {
3216 zopt_objects = argc;
3217 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3218 for (i = 0; i < zopt_objects; i++) {
3219 errno = 0;
3220 zopt_object[i] = strtoull(argv[i], NULL, 0);
3221 if (zopt_object[i] == 0 && errno != 0)
3222 fatal("bad number %s: %s",
3223 argv[i], strerror(errno));
3224 }
3225 }
3226 (os != NULL) ? dump_dir(os) : dump_zpool(spa);
3227 } else {
3228 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3229 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3230 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3231 flagbits['e'] = ZDB_FLAG_BSWAP;
3232 flagbits['g'] = ZDB_FLAG_GBH;
3233 flagbits['i'] = ZDB_FLAG_INDIRECT;
3234 flagbits['p'] = ZDB_FLAG_PHYS;
3235 flagbits['r'] = ZDB_FLAG_RAW;
3236
3237 for (i = 0; i < argc; i++)
3238 zdb_read_block(argv[i], spa);
3239 }
3240
3241 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3242
3243 fuid_table_destroy();
3244 sa_loaded = B_FALSE;
3245
3246 libzfs_fini(g_zfs);
3247 kernel_fini();
3248
3249 return (0);
3250 }