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) 2013 by Delphix. All rights reserved.
25 */
26
27 #include <stdio.h>
28 #include <unistd.h>
29 #include <stdio_ext.h>
30 #include <stdlib.h>
31 #include <ctype.h>
32 #include <sys/zfs_context.h>
33 #include <sys/spa.h>
34 #include <sys/spa_impl.h>
35 #include <sys/dmu.h>
36 #include <sys/zap.h>
37 #include <sys/fs/zfs.h>
38 #include <sys/zfs_znode.h>
39 #include <sys/zfs_sa.h>
40 #include <sys/sa.h>
41 #include <sys/sa_impl.h>
42 #include <sys/vdev.h>
43 #include <sys/vdev_impl.h>
44 #include <sys/metaslab_impl.h>
45 #include <sys/dmu_objset.h>
46 #include <sys/dsl_dir.h>
47 #include <sys/dsl_dataset.h>
48 #include <sys/dsl_pool.h>
49 #include <sys/dbuf.h>
50 #include <sys/zil.h>
51 #include <sys/zil_impl.h>
52 #include <sys/stat.h>
53 #include <sys/resource.h>
54 #include <sys/dmu_traverse.h>
55 #include <sys/zio_checksum.h>
56 #include <sys/zio_compress.h>
57 #include <sys/zfs_fuid.h>
58 #include <sys/arc.h>
59 #include <sys/ddt.h>
60 #include <sys/zfeature.h>
61 #include <zfs_comutil.h>
62 #undef ZFS_MAXNAMELEN
63 #undef verify
64 #include <libzfs.h>
65
66 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
67 zio_compress_table[(idx)].ci_name : "UNKNOWN")
68 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
69 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
70 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
76
77 #ifndef lint
78 extern int zfs_recover;
79 #else
80 int zfs_recover;
81 #endif
82
83 const char cmdname[] = "zdb";
84 uint8_t dump_opt[256];
85
86 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
87
88 extern void dump_intent_log(zilog_t *);
89 uint64_t *zopt_object = NULL;
90 int zopt_objects = 0;
91 libzfs_handle_t *g_zfs;
92 uint64_t max_inflight = 200;
93
94 /*
95 * These libumem hooks provide a reasonable set of defaults for the allocator's
96 * debugging facilities.
97 */
98 const char *
99 _umem_debug_init()
100 {
101 return ("default,verbose"); /* $UMEM_DEBUG setting */
102 }
103
104 const char *
105 _umem_logging_init(void)
106 {
107 return ("fail,contents"); /* $UMEM_LOGGING setting */
108 }
109
110 static void
111 usage(void)
112 {
113 (void) fprintf(stderr,
114 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
115 "[-U config] [-M inflight I/Os] poolname [object...]\n"
116 " %s [-divPA] [-e -p path...] [-U config] dataset "
117 "[object...]\n"
118 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
119 "poolname [vdev [metaslab...]]\n"
120 " %s -R [-A] [-e [-p path...]] poolname "
121 "vdev:offset:size[:flags]\n"
122 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n"
123 " %s -l [-uA] device\n"
124 " %s -C [-A] [-U config]\n\n",
125 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
126
127 (void) fprintf(stderr, " Dataset name must include at least one "
128 "separator character '/' or '@'\n");
129 (void) fprintf(stderr, " If dataset name is specified, only that "
130 "dataset is dumped\n");
131 (void) fprintf(stderr, " If object numbers are specified, only "
132 "those objects are dumped\n\n");
133 (void) fprintf(stderr, " Options to control amount of output:\n");
134 (void) fprintf(stderr, " -u uberblock\n");
135 (void) fprintf(stderr, " -d dataset(s)\n");
136 (void) fprintf(stderr, " -i intent logs\n");
137 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
138 (void) fprintf(stderr, " -h pool history\n");
139 (void) fprintf(stderr, " -b block statistics\n");
140 (void) fprintf(stderr, " -m metaslabs\n");
141 (void) fprintf(stderr, " -c checksum all metadata (twice for "
142 "all data) blocks\n");
143 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
144 (void) fprintf(stderr, " -D dedup statistics\n");
145 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
146 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
147 (void) fprintf(stderr, " -l dump label contents\n");
148 (void) fprintf(stderr, " -L disable leak tracking (do not "
149 "load spacemaps)\n");
150 (void) fprintf(stderr, " -R read and display block from a "
151 "device\n\n");
152 (void) fprintf(stderr, " Below options are intended for use "
153 "with other options (except -l):\n");
154 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
155 "panic recovery (-AA) or both (-AAA)\n");
156 (void) fprintf(stderr, " -F attempt automatic rewind within "
157 "safe range of transaction groups\n");
158 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
159 "cachefile\n");
160 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
161 "work with dataset)\n");
162 (void) fprintf(stderr, " -e pool is exported/destroyed/"
163 "has altroot/not in a cachefile\n");
164 (void) fprintf(stderr, " -p <path> -- use one or more with "
165 "-e to specify path to vdev dir\n");
166 (void) fprintf(stderr, " -P print numbers in parseable form\n");
167 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
168 "searching for uberblocks\n");
169 (void) fprintf(stderr, " -M <number of inflight I/Os> -- "
170 "specify the maximum number of checksumming I/Os [default is 200]");
171 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
172 "to make only that option verbose\n");
173 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
174 exit(1);
175 }
176
177 /*
178 * Called for usage errors that are discovered after a call to spa_open(),
179 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
180 */
181
182 static void
183 fatal(const char *fmt, ...)
184 {
185 va_list ap;
186
187 va_start(ap, fmt);
188 (void) fprintf(stderr, "%s: ", cmdname);
189 (void) vfprintf(stderr, fmt, ap);
190 va_end(ap);
191 (void) fprintf(stderr, "\n");
192
193 exit(1);
194 }
195
196 /* ARGSUSED */
197 static void
198 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
199 {
200 nvlist_t *nv;
201 size_t nvsize = *(uint64_t *)data;
202 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
203
204 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
205
206 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
207
208 umem_free(packed, nvsize);
209
210 dump_nvlist(nv, 8);
211
212 nvlist_free(nv);
213 }
214
215 /* ARGSUSED */
216 static void
217 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
218 {
219 spa_history_phys_t *shp = data;
220
221 if (shp == NULL)
222 return;
223
224 (void) printf("\t\tpool_create_len = %llu\n",
225 (u_longlong_t)shp->sh_pool_create_len);
226 (void) printf("\t\tphys_max_off = %llu\n",
227 (u_longlong_t)shp->sh_phys_max_off);
228 (void) printf("\t\tbof = %llu\n",
229 (u_longlong_t)shp->sh_bof);
230 (void) printf("\t\teof = %llu\n",
231 (u_longlong_t)shp->sh_eof);
232 (void) printf("\t\trecords_lost = %llu\n",
233 (u_longlong_t)shp->sh_records_lost);
234 }
235
236 static void
237 zdb_nicenum(uint64_t num, char *buf)
238 {
239 if (dump_opt['P'])
240 (void) sprintf(buf, "%llu", (longlong_t)num);
241 else
242 nicenum(num, buf);
243 }
244
245 const char histo_stars[] = "****************************************";
246 const int histo_width = sizeof (histo_stars) - 1;
247
248 static void
249 dump_histogram(const uint64_t *histo, int size)
250 {
251 int i;
252 int minidx = size - 1;
253 int maxidx = 0;
254 uint64_t max = 0;
255
256 for (i = 0; i < size; i++) {
257 if (histo[i] > max)
258 max = histo[i];
259 if (histo[i] > 0 && i > maxidx)
260 maxidx = i;
261 if (histo[i] > 0 && i < minidx)
262 minidx = i;
263 }
264
265 if (max < histo_width)
266 max = histo_width;
267
268 for (i = minidx; i <= maxidx; i++) {
269 (void) printf("\t\t\t%3u: %6llu %s\n",
270 i, (u_longlong_t)histo[i],
271 &histo_stars[(max - histo[i]) * histo_width / max]);
272 }
273 }
274
275 static void
276 dump_zap_stats(objset_t *os, uint64_t object)
277 {
278 int error;
279 zap_stats_t zs;
280
281 error = zap_get_stats(os, object, &zs);
282 if (error)
283 return;
284
285 if (zs.zs_ptrtbl_len == 0) {
286 ASSERT(zs.zs_num_blocks == 1);
287 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
288 (u_longlong_t)zs.zs_blocksize,
289 (u_longlong_t)zs.zs_num_entries);
290 return;
291 }
292
293 (void) printf("\tFat ZAP stats:\n");
294
295 (void) printf("\t\tPointer table:\n");
296 (void) printf("\t\t\t%llu elements\n",
297 (u_longlong_t)zs.zs_ptrtbl_len);
298 (void) printf("\t\t\tzt_blk: %llu\n",
299 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
300 (void) printf("\t\t\tzt_numblks: %llu\n",
301 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
302 (void) printf("\t\t\tzt_shift: %llu\n",
303 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
304 (void) printf("\t\t\tzt_blks_copied: %llu\n",
305 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
306 (void) printf("\t\t\tzt_nextblk: %llu\n",
307 (u_longlong_t)zs.zs_ptrtbl_nextblk);
308
309 (void) printf("\t\tZAP entries: %llu\n",
310 (u_longlong_t)zs.zs_num_entries);
311 (void) printf("\t\tLeaf blocks: %llu\n",
312 (u_longlong_t)zs.zs_num_leafs);
313 (void) printf("\t\tTotal blocks: %llu\n",
314 (u_longlong_t)zs.zs_num_blocks);
315 (void) printf("\t\tzap_block_type: 0x%llx\n",
316 (u_longlong_t)zs.zs_block_type);
317 (void) printf("\t\tzap_magic: 0x%llx\n",
318 (u_longlong_t)zs.zs_magic);
319 (void) printf("\t\tzap_salt: 0x%llx\n",
320 (u_longlong_t)zs.zs_salt);
321
322 (void) printf("\t\tLeafs with 2^n pointers:\n");
323 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE);
324
325 (void) printf("\t\tBlocks with n*5 entries:\n");
326 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE);
327
328 (void) printf("\t\tBlocks n/10 full:\n");
329 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE);
330
331 (void) printf("\t\tEntries with n chunks:\n");
332 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE);
333
334 (void) printf("\t\tBuckets with n entries:\n");
335 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE);
336 }
337
338 /*ARGSUSED*/
339 static void
340 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
341 {
342 }
343
344 /*ARGSUSED*/
345 static void
346 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
347 {
348 (void) printf("\tUNKNOWN OBJECT TYPE\n");
349 }
350
351 /*ARGSUSED*/
352 void
353 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
354 {
355 }
356
357 /*ARGSUSED*/
358 static void
359 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
360 {
361 }
362
363 /*ARGSUSED*/
364 static void
365 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
366 {
367 zap_cursor_t zc;
368 zap_attribute_t attr;
369 void *prop;
370 int i;
371
372 dump_zap_stats(os, object);
373 (void) printf("\n");
374
375 for (zap_cursor_init(&zc, os, object);
376 zap_cursor_retrieve(&zc, &attr) == 0;
377 zap_cursor_advance(&zc)) {
378 (void) printf("\t\t%s = ", attr.za_name);
379 if (attr.za_num_integers == 0) {
380 (void) printf("\n");
381 continue;
382 }
383 prop = umem_zalloc(attr.za_num_integers *
384 attr.za_integer_length, UMEM_NOFAIL);
385 (void) zap_lookup(os, object, attr.za_name,
386 attr.za_integer_length, attr.za_num_integers, prop);
387 if (attr.za_integer_length == 1) {
388 (void) printf("%s", (char *)prop);
389 } else {
390 for (i = 0; i < attr.za_num_integers; i++) {
391 switch (attr.za_integer_length) {
392 case 2:
393 (void) printf("%u ",
394 ((uint16_t *)prop)[i]);
395 break;
396 case 4:
397 (void) printf("%u ",
398 ((uint32_t *)prop)[i]);
399 break;
400 case 8:
401 (void) printf("%lld ",
402 (u_longlong_t)((int64_t *)prop)[i]);
403 break;
404 }
405 }
406 }
407 (void) printf("\n");
408 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
409 }
410 zap_cursor_fini(&zc);
411 }
412
413 /*ARGSUSED*/
414 static void
415 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
416 {
417 dump_zap_stats(os, object);
418 /* contents are printed elsewhere, properly decoded */
419 }
420
421 /*ARGSUSED*/
422 static void
423 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
424 {
425 zap_cursor_t zc;
426 zap_attribute_t attr;
427
428 dump_zap_stats(os, object);
429 (void) printf("\n");
430
431 for (zap_cursor_init(&zc, os, object);
432 zap_cursor_retrieve(&zc, &attr) == 0;
433 zap_cursor_advance(&zc)) {
434 (void) printf("\t\t%s = ", attr.za_name);
435 if (attr.za_num_integers == 0) {
436 (void) printf("\n");
437 continue;
438 }
439 (void) printf(" %llx : [%d:%d:%d]\n",
440 (u_longlong_t)attr.za_first_integer,
441 (int)ATTR_LENGTH(attr.za_first_integer),
442 (int)ATTR_BSWAP(attr.za_first_integer),
443 (int)ATTR_NUM(attr.za_first_integer));
444 }
445 zap_cursor_fini(&zc);
446 }
447
448 /*ARGSUSED*/
449 static void
450 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
451 {
452 zap_cursor_t zc;
453 zap_attribute_t attr;
454 uint16_t *layout_attrs;
455 int i;
456
457 dump_zap_stats(os, object);
458 (void) printf("\n");
459
460 for (zap_cursor_init(&zc, os, object);
461 zap_cursor_retrieve(&zc, &attr) == 0;
462 zap_cursor_advance(&zc)) {
463 (void) printf("\t\t%s = [", attr.za_name);
464 if (attr.za_num_integers == 0) {
465 (void) printf("\n");
466 continue;
467 }
468
469 VERIFY(attr.za_integer_length == 2);
470 layout_attrs = umem_zalloc(attr.za_num_integers *
471 attr.za_integer_length, UMEM_NOFAIL);
472
473 VERIFY(zap_lookup(os, object, attr.za_name,
474 attr.za_integer_length,
475 attr.za_num_integers, layout_attrs) == 0);
476
477 for (i = 0; i != attr.za_num_integers; i++)
478 (void) printf(" %d ", (int)layout_attrs[i]);
479 (void) printf("]\n");
480 umem_free(layout_attrs,
481 attr.za_num_integers * attr.za_integer_length);
482 }
483 zap_cursor_fini(&zc);
484 }
485
486 /*ARGSUSED*/
487 static void
488 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
489 {
490 zap_cursor_t zc;
491 zap_attribute_t attr;
492 const char *typenames[] = {
493 /* 0 */ "not specified",
494 /* 1 */ "FIFO",
495 /* 2 */ "Character Device",
496 /* 3 */ "3 (invalid)",
497 /* 4 */ "Directory",
498 /* 5 */ "5 (invalid)",
499 /* 6 */ "Block Device",
500 /* 7 */ "7 (invalid)",
501 /* 8 */ "Regular File",
502 /* 9 */ "9 (invalid)",
503 /* 10 */ "Symbolic Link",
504 /* 11 */ "11 (invalid)",
505 /* 12 */ "Socket",
506 /* 13 */ "Door",
507 /* 14 */ "Event Port",
508 /* 15 */ "15 (invalid)",
509 };
510
511 dump_zap_stats(os, object);
512 (void) printf("\n");
513
514 for (zap_cursor_init(&zc, os, object);
515 zap_cursor_retrieve(&zc, &attr) == 0;
516 zap_cursor_advance(&zc)) {
517 (void) printf("\t\t%s = %lld (type: %s)\n",
518 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
519 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
520 }
521 zap_cursor_fini(&zc);
522 }
523
524 static void
525 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm)
526 {
527 uint64_t alloc, offset, entry;
528 uint8_t mapshift = sm->sm_shift;
529 uint64_t mapstart = sm->sm_start;
530 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
531 "INVALID", "INVALID", "INVALID", "INVALID" };
532
533 if (smo->smo_object == 0)
534 return;
535
536 /*
537 * Print out the freelist entries in both encoded and decoded form.
538 */
539 alloc = 0;
540 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) {
541 VERIFY3U(0, ==, dmu_read(os, smo->smo_object, offset,
542 sizeof (entry), &entry, DMU_READ_PREFETCH));
543 if (SM_DEBUG_DECODE(entry)) {
544 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
545 (u_longlong_t)(offset / sizeof (entry)),
546 ddata[SM_DEBUG_ACTION_DECODE(entry)],
547 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
548 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
549 } else {
550 (void) printf("\t [%6llu] %c range:"
551 " %010llx-%010llx size: %06llx\n",
552 (u_longlong_t)(offset / sizeof (entry)),
553 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
554 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
555 mapshift) + mapstart),
556 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
557 mapshift) + mapstart + (SM_RUN_DECODE(entry) <<
558 mapshift)),
559 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
560 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
561 alloc += SM_RUN_DECODE(entry) << mapshift;
562 else
563 alloc -= SM_RUN_DECODE(entry) << mapshift;
564 }
565 }
566 if (alloc != smo->smo_alloc) {
567 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
568 "with space map summary (%llu)\n",
569 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc);
570 }
571 }
572
573 static void
574 dump_metaslab_stats(metaslab_t *msp)
575 {
576 char maxbuf[32];
577 space_map_t *sm = msp->ms_map;
578 avl_tree_t *t = sm->sm_pp_root;
579 int free_pct = sm->sm_space * 100 / sm->sm_size;
580
581 zdb_nicenum(space_map_maxsize(sm), maxbuf);
582
583 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
584 "segments", avl_numnodes(t), "maxsize", maxbuf,
585 "freepct", free_pct);
586 }
587
588 static void
589 dump_metaslab(metaslab_t *msp)
590 {
591 vdev_t *vd = msp->ms_group->mg_vd;
592 spa_t *spa = vd->vdev_spa;
593 space_map_t *sm = msp->ms_map;
594 space_map_obj_t *smo = &msp->ms_smo;
595 char freebuf[32];
596
597 zdb_nicenum(sm->sm_size - smo->smo_alloc, freebuf);
598
599 (void) printf(
600 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
601 (u_longlong_t)(sm->sm_start / sm->sm_size),
602 (u_longlong_t)sm->sm_start, (u_longlong_t)smo->smo_object, freebuf);
603
604 if (dump_opt['m'] > 1 && !dump_opt['L']) {
605 mutex_enter(&msp->ms_lock);
606 space_map_load_wait(sm);
607 if (!sm->sm_loaded)
608 VERIFY(space_map_load(sm, zfs_metaslab_ops,
609 SM_FREE, smo, spa->spa_meta_objset) == 0);
610 dump_metaslab_stats(msp);
611 space_map_unload(sm);
612 mutex_exit(&msp->ms_lock);
613 }
614
615 if (dump_opt['d'] > 5 || dump_opt['m'] > 2) {
616 ASSERT(sm->sm_size == (1ULL << vd->vdev_ms_shift));
617
618 mutex_enter(&msp->ms_lock);
619 dump_spacemap(spa->spa_meta_objset, smo, sm);
620 mutex_exit(&msp->ms_lock);
621 }
622 }
623
624 static void
625 print_vdev_metaslab_header(vdev_t *vd)
626 {
627 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
628 (u_longlong_t)vd->vdev_id,
629 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
630 "offset", "spacemap", "free");
631 (void) printf("\t%15s %19s %15s %10s\n",
632 "---------------", "-------------------",
633 "---------------", "-------------");
634 }
635
636 static void
637 dump_metaslabs(spa_t *spa)
638 {
639 vdev_t *vd, *rvd = spa->spa_root_vdev;
640 uint64_t m, c = 0, children = rvd->vdev_children;
641
642 (void) printf("\nMetaslabs:\n");
643
644 if (!dump_opt['d'] && zopt_objects > 0) {
645 c = zopt_object[0];
646
647 if (c >= children)
648 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
649
650 if (zopt_objects > 1) {
651 vd = rvd->vdev_child[c];
652 print_vdev_metaslab_header(vd);
653
654 for (m = 1; m < zopt_objects; m++) {
655 if (zopt_object[m] < vd->vdev_ms_count)
656 dump_metaslab(
657 vd->vdev_ms[zopt_object[m]]);
658 else
659 (void) fprintf(stderr, "bad metaslab "
660 "number %llu\n",
661 (u_longlong_t)zopt_object[m]);
662 }
663 (void) printf("\n");
664 return;
665 }
666 children = c + 1;
667 }
668 for (; c < children; c++) {
669 vd = rvd->vdev_child[c];
670 print_vdev_metaslab_header(vd);
671
672 for (m = 0; m < vd->vdev_ms_count; m++)
673 dump_metaslab(vd->vdev_ms[m]);
674 (void) printf("\n");
675 }
676 }
677
678 static void
679 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
680 {
681 const ddt_phys_t *ddp = dde->dde_phys;
682 const ddt_key_t *ddk = &dde->dde_key;
683 char *types[4] = { "ditto", "single", "double", "triple" };
684 char blkbuf[BP_SPRINTF_LEN];
685 blkptr_t blk;
686
687 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
688 if (ddp->ddp_phys_birth == 0)
689 continue;
690 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
691 sprintf_blkptr(blkbuf, &blk);
692 (void) printf("index %llx refcnt %llu %s %s\n",
693 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
694 types[p], blkbuf);
695 }
696 }
697
698 static void
699 dump_dedup_ratio(const ddt_stat_t *dds)
700 {
701 double rL, rP, rD, D, dedup, compress, copies;
702
703 if (dds->dds_blocks == 0)
704 return;
705
706 rL = (double)dds->dds_ref_lsize;
707 rP = (double)dds->dds_ref_psize;
708 rD = (double)dds->dds_ref_dsize;
709 D = (double)dds->dds_dsize;
710
711 dedup = rD / D;
712 compress = rL / rP;
713 copies = rD / rP;
714
715 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
716 "dedup * compress / copies = %.2f\n\n",
717 dedup, compress, copies, dedup * compress / copies);
718 }
719
720 static void
721 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
722 {
723 char name[DDT_NAMELEN];
724 ddt_entry_t dde;
725 uint64_t walk = 0;
726 dmu_object_info_t doi;
727 uint64_t count, dspace, mspace;
728 int error;
729
730 error = ddt_object_info(ddt, type, class, &doi);
731
732 if (error == ENOENT)
733 return;
734 ASSERT(error == 0);
735
736 if ((count = ddt_object_count(ddt, type, class)) == 0)
737 return;
738
739 dspace = doi.doi_physical_blocks_512 << 9;
740 mspace = doi.doi_fill_count * doi.doi_data_block_size;
741
742 ddt_object_name(ddt, type, class, name);
743
744 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
745 name,
746 (u_longlong_t)count,
747 (u_longlong_t)(dspace / count),
748 (u_longlong_t)(mspace / count));
749
750 if (dump_opt['D'] < 3)
751 return;
752
753 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
754
755 if (dump_opt['D'] < 4)
756 return;
757
758 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
759 return;
760
761 (void) printf("%s contents:\n\n", name);
762
763 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
764 dump_dde(ddt, &dde, walk);
765
766 ASSERT(error == ENOENT);
767
768 (void) printf("\n");
769 }
770
771 static void
772 dump_all_ddts(spa_t *spa)
773 {
774 ddt_histogram_t ddh_total = { 0 };
775 ddt_stat_t dds_total = { 0 };
776
777 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
778 ddt_t *ddt = spa->spa_ddt[c];
779 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
780 for (enum ddt_class class = 0; class < DDT_CLASSES;
781 class++) {
782 dump_ddt(ddt, type, class);
783 }
784 }
785 }
786
787 ddt_get_dedup_stats(spa, &dds_total);
788
789 if (dds_total.dds_blocks == 0) {
790 (void) printf("All DDTs are empty\n");
791 return;
792 }
793
794 (void) printf("\n");
795
796 if (dump_opt['D'] > 1) {
797 (void) printf("DDT histogram (aggregated over all DDTs):\n");
798 ddt_get_dedup_histogram(spa, &ddh_total);
799 zpool_dump_ddt(&dds_total, &ddh_total);
800 }
801
802 dump_dedup_ratio(&dds_total);
803 }
804
805 static void
806 dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size)
807 {
808 char *prefix = (void *)sm;
809
810 (void) printf("%s [%llu,%llu) length %llu\n",
811 prefix,
812 (u_longlong_t)start,
813 (u_longlong_t)(start + size),
814 (u_longlong_t)(size));
815 }
816
817 static void
818 dump_dtl(vdev_t *vd, int indent)
819 {
820 spa_t *spa = vd->vdev_spa;
821 boolean_t required;
822 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
823 char prefix[256];
824
825 spa_vdev_state_enter(spa, SCL_NONE);
826 required = vdev_dtl_required(vd);
827 (void) spa_vdev_state_exit(spa, NULL, 0);
828
829 if (indent == 0)
830 (void) printf("\nDirty time logs:\n\n");
831
832 (void) printf("\t%*s%s [%s]\n", indent, "",
833 vd->vdev_path ? vd->vdev_path :
834 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
835 required ? "DTL-required" : "DTL-expendable");
836
837 for (int t = 0; t < DTL_TYPES; t++) {
838 space_map_t *sm = &vd->vdev_dtl[t];
839 if (sm->sm_space == 0)
840 continue;
841 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
842 indent + 2, "", name[t]);
843 mutex_enter(sm->sm_lock);
844 space_map_walk(sm, dump_dtl_seg, (void *)prefix);
845 mutex_exit(sm->sm_lock);
846 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
847 dump_spacemap(spa->spa_meta_objset,
848 &vd->vdev_dtl_smo, sm);
849 }
850
851 for (int c = 0; c < vd->vdev_children; c++)
852 dump_dtl(vd->vdev_child[c], indent + 4);
853 }
854
855 static void
856 dump_history(spa_t *spa)
857 {
858 nvlist_t **events = NULL;
859 char buf[SPA_MAXBLOCKSIZE];
860 uint64_t resid, len, off = 0;
861 uint_t num = 0;
862 int error;
863 time_t tsec;
864 struct tm t;
865 char tbuf[30];
866 char internalstr[MAXPATHLEN];
867
868 do {
869 len = sizeof (buf);
870
871 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
872 (void) fprintf(stderr, "Unable to read history: "
873 "error %d\n", error);
874 return;
875 }
876
877 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
878 break;
879
880 off -= resid;
881 } while (len != 0);
882
883 (void) printf("\nHistory:\n");
884 for (int i = 0; i < num; i++) {
885 uint64_t time, txg, ievent;
886 char *cmd, *intstr;
887 boolean_t printed = B_FALSE;
888
889 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
890 &time) != 0)
891 goto next;
892 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
893 &cmd) != 0) {
894 if (nvlist_lookup_uint64(events[i],
895 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
896 goto next;
897 verify(nvlist_lookup_uint64(events[i],
898 ZPOOL_HIST_TXG, &txg) == 0);
899 verify(nvlist_lookup_string(events[i],
900 ZPOOL_HIST_INT_STR, &intstr) == 0);
901 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
902 goto next;
903
904 (void) snprintf(internalstr,
905 sizeof (internalstr),
906 "[internal %s txg:%lld] %s",
907 zfs_history_event_names[ievent], txg,
908 intstr);
909 cmd = internalstr;
910 }
911 tsec = time;
912 (void) localtime_r(&tsec, &t);
913 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
914 (void) printf("%s %s\n", tbuf, cmd);
915 printed = B_TRUE;
916
917 next:
918 if (dump_opt['h'] > 1) {
919 if (!printed)
920 (void) printf("unrecognized record:\n");
921 dump_nvlist(events[i], 2);
922 }
923 }
924 }
925
926 /*ARGSUSED*/
927 static void
928 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
929 {
930 }
931
932 static uint64_t
933 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb)
934 {
935 if (dnp == NULL) {
936 ASSERT(zb->zb_level < 0);
937 if (zb->zb_object == 0)
938 return (zb->zb_blkid);
939 return (zb->zb_blkid * BP_GET_LSIZE(bp));
940 }
941
942 ASSERT(zb->zb_level >= 0);
943
944 return ((zb->zb_blkid <<
945 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
946 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
947 }
948
949 static void
950 sprintf_blkptr_compact(char *blkbuf, const blkptr_t *bp)
951 {
952 const dva_t *dva = bp->blk_dva;
953 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
954
955 if (dump_opt['b'] >= 6) {
956 sprintf_blkptr(blkbuf, bp);
957 return;
958 }
959
960 blkbuf[0] = '\0';
961
962 for (int i = 0; i < ndvas; i++)
963 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ",
964 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
965 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
966 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
967
968 (void) sprintf(blkbuf + strlen(blkbuf),
969 "%llxL/%llxP F=%llu B=%llu/%llu",
970 (u_longlong_t)BP_GET_LSIZE(bp),
971 (u_longlong_t)BP_GET_PSIZE(bp),
972 (u_longlong_t)bp->blk_fill,
973 (u_longlong_t)bp->blk_birth,
974 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
975 }
976
977 static void
978 print_indirect(blkptr_t *bp, const zbookmark_t *zb,
979 const dnode_phys_t *dnp)
980 {
981 char blkbuf[BP_SPRINTF_LEN];
982 int l;
983
984 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
985 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
986
987 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
988
989 ASSERT(zb->zb_level >= 0);
990
991 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
992 if (l == zb->zb_level) {
993 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
994 } else {
995 (void) printf(" ");
996 }
997 }
998
999 sprintf_blkptr_compact(blkbuf, bp);
1000 (void) printf("%s\n", blkbuf);
1001 }
1002
1003 static int
1004 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1005 blkptr_t *bp, const zbookmark_t *zb)
1006 {
1007 int err = 0;
1008
1009 if (bp->blk_birth == 0)
1010 return (0);
1011
1012 print_indirect(bp, zb, dnp);
1013
1014 if (BP_GET_LEVEL(bp) > 0) {
1015 uint32_t flags = ARC_WAIT;
1016 int i;
1017 blkptr_t *cbp;
1018 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1019 arc_buf_t *buf;
1020 uint64_t fill = 0;
1021
1022 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1023 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1024 if (err)
1025 return (err);
1026 ASSERT(buf->b_data);
1027
1028 /* recursively visit blocks below this */
1029 cbp = buf->b_data;
1030 for (i = 0; i < epb; i++, cbp++) {
1031 zbookmark_t czb;
1032
1033 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1034 zb->zb_level - 1,
1035 zb->zb_blkid * epb + i);
1036 err = visit_indirect(spa, dnp, cbp, &czb);
1037 if (err)
1038 break;
1039 fill += cbp->blk_fill;
1040 }
1041 if (!err)
1042 ASSERT3U(fill, ==, bp->blk_fill);
1043 (void) arc_buf_remove_ref(buf, &buf);
1044 }
1045
1046 return (err);
1047 }
1048
1049 /*ARGSUSED*/
1050 static void
1051 dump_indirect(dnode_t *dn)
1052 {
1053 dnode_phys_t *dnp = dn->dn_phys;
1054 int j;
1055 zbookmark_t czb;
1056
1057 (void) printf("Indirect blocks:\n");
1058
1059 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1060 dn->dn_object, dnp->dn_nlevels - 1, 0);
1061 for (j = 0; j < dnp->dn_nblkptr; j++) {
1062 czb.zb_blkid = j;
1063 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1064 &dnp->dn_blkptr[j], &czb);
1065 }
1066
1067 (void) printf("\n");
1068 }
1069
1070 /*ARGSUSED*/
1071 static void
1072 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1073 {
1074 dsl_dir_phys_t *dd = data;
1075 time_t crtime;
1076 char nice[32];
1077
1078 if (dd == NULL)
1079 return;
1080
1081 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1082
1083 crtime = dd->dd_creation_time;
1084 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1085 (void) printf("\t\thead_dataset_obj = %llu\n",
1086 (u_longlong_t)dd->dd_head_dataset_obj);
1087 (void) printf("\t\tparent_dir_obj = %llu\n",
1088 (u_longlong_t)dd->dd_parent_obj);
1089 (void) printf("\t\torigin_obj = %llu\n",
1090 (u_longlong_t)dd->dd_origin_obj);
1091 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1092 (u_longlong_t)dd->dd_child_dir_zapobj);
1093 zdb_nicenum(dd->dd_used_bytes, nice);
1094 (void) printf("\t\tused_bytes = %s\n", nice);
1095 zdb_nicenum(dd->dd_compressed_bytes, nice);
1096 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1097 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1098 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1099 zdb_nicenum(dd->dd_quota, nice);
1100 (void) printf("\t\tquota = %s\n", nice);
1101 zdb_nicenum(dd->dd_reserved, nice);
1102 (void) printf("\t\treserved = %s\n", nice);
1103 (void) printf("\t\tprops_zapobj = %llu\n",
1104 (u_longlong_t)dd->dd_props_zapobj);
1105 (void) printf("\t\tdeleg_zapobj = %llu\n",
1106 (u_longlong_t)dd->dd_deleg_zapobj);
1107 (void) printf("\t\tflags = %llx\n",
1108 (u_longlong_t)dd->dd_flags);
1109
1110 #define DO(which) \
1111 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1112 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1113 DO(HEAD);
1114 DO(SNAP);
1115 DO(CHILD);
1116 DO(CHILD_RSRV);
1117 DO(REFRSRV);
1118 #undef DO
1119 }
1120
1121 /*ARGSUSED*/
1122 static void
1123 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1124 {
1125 dsl_dataset_phys_t *ds = data;
1126 time_t crtime;
1127 char used[32], compressed[32], uncompressed[32], unique[32];
1128 char blkbuf[BP_SPRINTF_LEN];
1129
1130 if (ds == NULL)
1131 return;
1132
1133 ASSERT(size == sizeof (*ds));
1134 crtime = ds->ds_creation_time;
1135 zdb_nicenum(ds->ds_referenced_bytes, used);
1136 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1137 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1138 zdb_nicenum(ds->ds_unique_bytes, unique);
1139 sprintf_blkptr(blkbuf, &ds->ds_bp);
1140
1141 (void) printf("\t\tdir_obj = %llu\n",
1142 (u_longlong_t)ds->ds_dir_obj);
1143 (void) printf("\t\tprev_snap_obj = %llu\n",
1144 (u_longlong_t)ds->ds_prev_snap_obj);
1145 (void) printf("\t\tprev_snap_txg = %llu\n",
1146 (u_longlong_t)ds->ds_prev_snap_txg);
1147 (void) printf("\t\tnext_snap_obj = %llu\n",
1148 (u_longlong_t)ds->ds_next_snap_obj);
1149 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1150 (u_longlong_t)ds->ds_snapnames_zapobj);
1151 (void) printf("\t\tnum_children = %llu\n",
1152 (u_longlong_t)ds->ds_num_children);
1153 (void) printf("\t\tuserrefs_obj = %llu\n",
1154 (u_longlong_t)ds->ds_userrefs_obj);
1155 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1156 (void) printf("\t\tcreation_txg = %llu\n",
1157 (u_longlong_t)ds->ds_creation_txg);
1158 (void) printf("\t\tdeadlist_obj = %llu\n",
1159 (u_longlong_t)ds->ds_deadlist_obj);
1160 (void) printf("\t\tused_bytes = %s\n", used);
1161 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1162 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1163 (void) printf("\t\tunique = %s\n", unique);
1164 (void) printf("\t\tfsid_guid = %llu\n",
1165 (u_longlong_t)ds->ds_fsid_guid);
1166 (void) printf("\t\tguid = %llu\n",
1167 (u_longlong_t)ds->ds_guid);
1168 (void) printf("\t\tflags = %llx\n",
1169 (u_longlong_t)ds->ds_flags);
1170 (void) printf("\t\tnext_clones_obj = %llu\n",
1171 (u_longlong_t)ds->ds_next_clones_obj);
1172 (void) printf("\t\tprops_obj = %llu\n",
1173 (u_longlong_t)ds->ds_props_obj);
1174 (void) printf("\t\tbp = %s\n", blkbuf);
1175 }
1176
1177 /* ARGSUSED */
1178 static int
1179 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1180 {
1181 char blkbuf[BP_SPRINTF_LEN];
1182
1183 if (bp->blk_birth != 0) {
1184 sprintf_blkptr(blkbuf, bp);
1185 (void) printf("\t%s\n", blkbuf);
1186 }
1187 return (0);
1188 }
1189
1190 static void
1191 dump_bptree(objset_t *os, uint64_t obj, char *name)
1192 {
1193 char bytes[32];
1194 bptree_phys_t *bt;
1195 dmu_buf_t *db;
1196
1197 if (dump_opt['d'] < 3)
1198 return;
1199
1200 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1201 bt = db->db_data;
1202 zdb_nicenum(bt->bt_bytes, bytes);
1203 (void) printf("\n %s: %llu datasets, %s\n",
1204 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1205 dmu_buf_rele(db, FTAG);
1206
1207 if (dump_opt['d'] < 5)
1208 return;
1209
1210 (void) printf("\n");
1211
1212 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1213 }
1214
1215 /* ARGSUSED */
1216 static int
1217 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1218 {
1219 char blkbuf[BP_SPRINTF_LEN];
1220
1221 ASSERT(bp->blk_birth != 0);
1222 sprintf_blkptr_compact(blkbuf, bp);
1223 (void) printf("\t%s\n", blkbuf);
1224 return (0);
1225 }
1226
1227 static void
1228 dump_bpobj(bpobj_t *bpo, char *name, int indent)
1229 {
1230 char bytes[32];
1231 char comp[32];
1232 char uncomp[32];
1233
1234 if (dump_opt['d'] < 3)
1235 return;
1236
1237 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1238 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1239 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1240 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1241 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1242 "%llu subobjs, %s (%s/%s comp)\n",
1243 indent * 8, name,
1244 (u_longlong_t)bpo->bpo_object,
1245 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1246 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1247 bytes, comp, uncomp);
1248
1249 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1250 uint64_t subobj;
1251 bpobj_t subbpo;
1252 int error;
1253 VERIFY0(dmu_read(bpo->bpo_os,
1254 bpo->bpo_phys->bpo_subobjs,
1255 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1256 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1257 if (error != 0) {
1258 (void) printf("ERROR %u while trying to open "
1259 "subobj id %llu\n",
1260 error, (u_longlong_t)subobj);
1261 continue;
1262 }
1263 dump_bpobj(&subbpo, "subobj", indent + 1);
1264 bpobj_close(&subbpo);
1265 }
1266 } else {
1267 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1268 indent * 8, name,
1269 (u_longlong_t)bpo->bpo_object,
1270 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1271 bytes);
1272 }
1273
1274 if (dump_opt['d'] < 5)
1275 return;
1276
1277
1278 if (indent == 0) {
1279 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1280 (void) printf("\n");
1281 }
1282 }
1283
1284 static void
1285 dump_deadlist(dsl_deadlist_t *dl)
1286 {
1287 dsl_deadlist_entry_t *dle;
1288 uint64_t unused;
1289 char bytes[32];
1290 char comp[32];
1291 char uncomp[32];
1292
1293 if (dump_opt['d'] < 3)
1294 return;
1295
1296 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1297 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1298 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1299 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1300 bytes, comp, uncomp);
1301
1302 if (dump_opt['d'] < 4)
1303 return;
1304
1305 (void) printf("\n");
1306
1307 /* force the tree to be loaded */
1308 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1309
1310 for (dle = avl_first(&dl->dl_tree); dle;
1311 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1312 if (dump_opt['d'] >= 5) {
1313 char buf[128];
1314 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ",
1315 (longlong_t)dle->dle_mintxg,
1316 (longlong_t)dle->dle_bpobj.bpo_object);
1317
1318 dump_bpobj(&dle->dle_bpobj, buf, 0);
1319 } else {
1320 (void) printf("mintxg %llu -> obj %llu\n",
1321 (longlong_t)dle->dle_mintxg,
1322 (longlong_t)dle->dle_bpobj.bpo_object);
1323
1324 }
1325 }
1326 }
1327
1328 static avl_tree_t idx_tree;
1329 static avl_tree_t domain_tree;
1330 static boolean_t fuid_table_loaded;
1331 static boolean_t sa_loaded;
1332 sa_attr_type_t *sa_attr_table;
1333
1334 static void
1335 fuid_table_destroy()
1336 {
1337 if (fuid_table_loaded) {
1338 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1339 fuid_table_loaded = B_FALSE;
1340 }
1341 }
1342
1343 /*
1344 * print uid or gid information.
1345 * For normal POSIX id just the id is printed in decimal format.
1346 * For CIFS files with FUID the fuid is printed in hex followed by
1347 * the domain-rid string.
1348 */
1349 static void
1350 print_idstr(uint64_t id, const char *id_type)
1351 {
1352 if (FUID_INDEX(id)) {
1353 char *domain;
1354
1355 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1356 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1357 (u_longlong_t)id, domain, (int)FUID_RID(id));
1358 } else {
1359 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1360 }
1361
1362 }
1363
1364 static void
1365 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1366 {
1367 uint32_t uid_idx, gid_idx;
1368
1369 uid_idx = FUID_INDEX(uid);
1370 gid_idx = FUID_INDEX(gid);
1371
1372 /* Load domain table, if not already loaded */
1373 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1374 uint64_t fuid_obj;
1375
1376 /* first find the fuid object. It lives in the master node */
1377 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1378 8, 1, &fuid_obj) == 0);
1379 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1380 (void) zfs_fuid_table_load(os, fuid_obj,
1381 &idx_tree, &domain_tree);
1382 fuid_table_loaded = B_TRUE;
1383 }
1384
1385 print_idstr(uid, "uid");
1386 print_idstr(gid, "gid");
1387 }
1388
1389 /*ARGSUSED*/
1390 static void
1391 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1392 {
1393 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1394 sa_handle_t *hdl;
1395 uint64_t xattr, rdev, gen;
1396 uint64_t uid, gid, mode, fsize, parent, links;
1397 uint64_t pflags;
1398 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1399 time_t z_crtime, z_atime, z_mtime, z_ctime;
1400 sa_bulk_attr_t bulk[12];
1401 int idx = 0;
1402 int error;
1403
1404 if (!sa_loaded) {
1405 uint64_t sa_attrs = 0;
1406 uint64_t version;
1407
1408 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1409 8, 1, &version) == 0);
1410 if (version >= ZPL_VERSION_SA) {
1411 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1412 8, 1, &sa_attrs) == 0);
1413 }
1414 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1415 ZPL_END, &sa_attr_table)) != 0) {
1416 (void) printf("sa_setup failed errno %d, can't "
1417 "display znode contents\n", error);
1418 return;
1419 }
1420 sa_loaded = B_TRUE;
1421 }
1422
1423 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1424 (void) printf("Failed to get handle for SA znode\n");
1425 return;
1426 }
1427
1428 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1429 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1430 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1431 &links, 8);
1432 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1433 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1434 &mode, 8);
1435 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1436 NULL, &parent, 8);
1437 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1438 &fsize, 8);
1439 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1440 acctm, 16);
1441 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1442 modtm, 16);
1443 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1444 crtm, 16);
1445 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1446 chgtm, 16);
1447 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1448 &pflags, 8);
1449
1450 if (sa_bulk_lookup(hdl, bulk, idx)) {
1451 (void) sa_handle_destroy(hdl);
1452 return;
1453 }
1454
1455 error = zfs_obj_to_path(os, object, path, sizeof (path));
1456 if (error != 0) {
1457 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1458 (u_longlong_t)object);
1459 }
1460 if (dump_opt['d'] < 3) {
1461 (void) printf("\t%s\n", path);
1462 (void) sa_handle_destroy(hdl);
1463 return;
1464 }
1465
1466 z_crtime = (time_t)crtm[0];
1467 z_atime = (time_t)acctm[0];
1468 z_mtime = (time_t)modtm[0];
1469 z_ctime = (time_t)chgtm[0];
1470
1471 (void) printf("\tpath %s\n", path);
1472 dump_uidgid(os, uid, gid);
1473 (void) printf("\tatime %s", ctime(&z_atime));
1474 (void) printf("\tmtime %s", ctime(&z_mtime));
1475 (void) printf("\tctime %s", ctime(&z_ctime));
1476 (void) printf("\tcrtime %s", ctime(&z_crtime));
1477 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1478 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1479 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1480 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1481 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1482 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1483 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1484 sizeof (uint64_t)) == 0)
1485 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1486 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1487 sizeof (uint64_t)) == 0)
1488 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1489 sa_handle_destroy(hdl);
1490 }
1491
1492 /*ARGSUSED*/
1493 static void
1494 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1495 {
1496 }
1497
1498 /*ARGSUSED*/
1499 static void
1500 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1501 {
1502 }
1503
1504 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1505 dump_none, /* unallocated */
1506 dump_zap, /* object directory */
1507 dump_uint64, /* object array */
1508 dump_none, /* packed nvlist */
1509 dump_packed_nvlist, /* packed nvlist size */
1510 dump_none, /* bplist */
1511 dump_none, /* bplist header */
1512 dump_none, /* SPA space map header */
1513 dump_none, /* SPA space map */
1514 dump_none, /* ZIL intent log */
1515 dump_dnode, /* DMU dnode */
1516 dump_dmu_objset, /* DMU objset */
1517 dump_dsl_dir, /* DSL directory */
1518 dump_zap, /* DSL directory child map */
1519 dump_zap, /* DSL dataset snap map */
1520 dump_zap, /* DSL props */
1521 dump_dsl_dataset, /* DSL dataset */
1522 dump_znode, /* ZFS znode */
1523 dump_acl, /* ZFS V0 ACL */
1524 dump_uint8, /* ZFS plain file */
1525 dump_zpldir, /* ZFS directory */
1526 dump_zap, /* ZFS master node */
1527 dump_zap, /* ZFS delete queue */
1528 dump_uint8, /* zvol object */
1529 dump_zap, /* zvol prop */
1530 dump_uint8, /* other uint8[] */
1531 dump_uint64, /* other uint64[] */
1532 dump_zap, /* other ZAP */
1533 dump_zap, /* persistent error log */
1534 dump_uint8, /* SPA history */
1535 dump_history_offsets, /* SPA history offsets */
1536 dump_zap, /* Pool properties */
1537 dump_zap, /* DSL permissions */
1538 dump_acl, /* ZFS ACL */
1539 dump_uint8, /* ZFS SYSACL */
1540 dump_none, /* FUID nvlist */
1541 dump_packed_nvlist, /* FUID nvlist size */
1542 dump_zap, /* DSL dataset next clones */
1543 dump_zap, /* DSL scrub queue */
1544 dump_zap, /* ZFS user/group used */
1545 dump_zap, /* ZFS user/group quota */
1546 dump_zap, /* snapshot refcount tags */
1547 dump_ddt_zap, /* DDT ZAP object */
1548 dump_zap, /* DDT statistics */
1549 dump_znode, /* SA object */
1550 dump_zap, /* SA Master Node */
1551 dump_sa_attrs, /* SA attribute registration */
1552 dump_sa_layouts, /* SA attribute layouts */
1553 dump_zap, /* DSL scrub translations */
1554 dump_none, /* fake dedup BP */
1555 dump_zap, /* deadlist */
1556 dump_none, /* deadlist hdr */
1557 dump_zap, /* dsl clones */
1558 dump_none, /* bpobj subobjs */
1559 dump_unknown, /* Unknown type, must be last */
1560 };
1561
1562 static void
1563 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1564 {
1565 dmu_buf_t *db = NULL;
1566 dmu_object_info_t doi;
1567 dnode_t *dn;
1568 void *bonus = NULL;
1569 size_t bsize = 0;
1570 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1571 char bonus_size[32];
1572 char aux[50];
1573 int error;
1574
1575 if (*print_header) {
1576 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1577 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1578 "%full", "type");
1579 *print_header = 0;
1580 }
1581
1582 if (object == 0) {
1583 dn = DMU_META_DNODE(os);
1584 } else {
1585 error = dmu_bonus_hold(os, object, FTAG, &db);
1586 if (error)
1587 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1588 object, error);
1589 bonus = db->db_data;
1590 bsize = db->db_size;
1591 dn = DB_DNODE((dmu_buf_impl_t *)db);
1592 }
1593 dmu_object_info_from_dnode(dn, &doi);
1594
1595 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1596 zdb_nicenum(doi.doi_data_block_size, dblk);
1597 zdb_nicenum(doi.doi_max_offset, lsize);
1598 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1599 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1600 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1601 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1602 doi.doi_max_offset);
1603
1604 aux[0] = '\0';
1605
1606 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1607 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1608 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1609 }
1610
1611 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1612 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1613 ZDB_COMPRESS_NAME(doi.doi_compress));
1614 }
1615
1616 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1617 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1618 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1619
1620 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1621 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1622 "", "", "", "", "", bonus_size, "bonus",
1623 ZDB_OT_NAME(doi.doi_bonus_type));
1624 }
1625
1626 if (verbosity >= 4) {
1627 (void) printf("\tdnode flags: %s%s%s\n",
1628 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1629 "USED_BYTES " : "",
1630 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1631 "USERUSED_ACCOUNTED " : "",
1632 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1633 "SPILL_BLKPTR" : "");
1634 (void) printf("\tdnode maxblkid: %llu\n",
1635 (longlong_t)dn->dn_phys->dn_maxblkid);
1636
1637 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1638 bonus, bsize);
1639 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1640 *print_header = 1;
1641 }
1642
1643 if (verbosity >= 5)
1644 dump_indirect(dn);
1645
1646 if (verbosity >= 5) {
1647 /*
1648 * Report the list of segments that comprise the object.
1649 */
1650 uint64_t start = 0;
1651 uint64_t end;
1652 uint64_t blkfill = 1;
1653 int minlvl = 1;
1654
1655 if (dn->dn_type == DMU_OT_DNODE) {
1656 minlvl = 0;
1657 blkfill = DNODES_PER_BLOCK;
1658 }
1659
1660 for (;;) {
1661 char segsize[32];
1662 error = dnode_next_offset(dn,
1663 0, &start, minlvl, blkfill, 0);
1664 if (error)
1665 break;
1666 end = start;
1667 error = dnode_next_offset(dn,
1668 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1669 zdb_nicenum(end - start, segsize);
1670 (void) printf("\t\tsegment [%016llx, %016llx)"
1671 " size %5s\n", (u_longlong_t)start,
1672 (u_longlong_t)end, segsize);
1673 if (error)
1674 break;
1675 start = end;
1676 }
1677 }
1678
1679 if (db != NULL)
1680 dmu_buf_rele(db, FTAG);
1681 }
1682
1683 static char *objset_types[DMU_OST_NUMTYPES] = {
1684 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1685
1686 static void
1687 dump_dir(objset_t *os)
1688 {
1689 dmu_objset_stats_t dds;
1690 uint64_t object, object_count;
1691 uint64_t refdbytes, usedobjs, scratch;
1692 char numbuf[32];
1693 char blkbuf[BP_SPRINTF_LEN + 20];
1694 char osname[MAXNAMELEN];
1695 char *type = "UNKNOWN";
1696 int verbosity = dump_opt['d'];
1697 int print_header = 1;
1698 int i, error;
1699
1700 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1701 dmu_objset_fast_stat(os, &dds);
1702 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1703
1704 if (dds.dds_type < DMU_OST_NUMTYPES)
1705 type = objset_types[dds.dds_type];
1706
1707 if (dds.dds_type == DMU_OST_META) {
1708 dds.dds_creation_txg = TXG_INITIAL;
1709 usedobjs = os->os_rootbp->blk_fill;
1710 refdbytes = os->os_spa->spa_dsl_pool->
1711 dp_mos_dir->dd_phys->dd_used_bytes;
1712 } else {
1713 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1714 }
1715
1716 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill);
1717
1718 zdb_nicenum(refdbytes, numbuf);
1719
1720 if (verbosity >= 4) {
1721 (void) sprintf(blkbuf, ", rootbp ");
1722 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp);
1723 } else {
1724 blkbuf[0] = '\0';
1725 }
1726
1727 dmu_objset_name(os, osname);
1728
1729 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1730 "%s, %llu objects%s\n",
1731 osname, type, (u_longlong_t)dmu_objset_id(os),
1732 (u_longlong_t)dds.dds_creation_txg,
1733 numbuf, (u_longlong_t)usedobjs, blkbuf);
1734
1735 if (zopt_objects != 0) {
1736 for (i = 0; i < zopt_objects; i++)
1737 dump_object(os, zopt_object[i], verbosity,
1738 &print_header);
1739 (void) printf("\n");
1740 return;
1741 }
1742
1743 if (dump_opt['i'] != 0 || verbosity >= 2)
1744 dump_intent_log(dmu_objset_zil(os));
1745
1746 if (dmu_objset_ds(os) != NULL)
1747 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1748
1749 if (verbosity < 2)
1750 return;
1751
1752 if (os->os_rootbp->blk_birth == 0)
1753 return;
1754
1755 dump_object(os, 0, verbosity, &print_header);
1756 object_count = 0;
1757 if (DMU_USERUSED_DNODE(os) != NULL &&
1758 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1759 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1760 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1761 }
1762
1763 object = 0;
1764 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1765 dump_object(os, object, verbosity, &print_header);
1766 object_count++;
1767 }
1768
1769 ASSERT3U(object_count, ==, usedobjs);
1770
1771 (void) printf("\n");
1772
1773 if (error != ESRCH) {
1774 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1775 abort();
1776 }
1777 }
1778
1779 static void
1780 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
1781 {
1782 time_t timestamp = ub->ub_timestamp;
1783
1784 (void) printf(header ? header : "");
1785 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1786 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1787 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1788 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1789 (void) printf("\ttimestamp = %llu UTC = %s",
1790 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
1791 if (dump_opt['u'] >= 3) {
1792 char blkbuf[BP_SPRINTF_LEN];
1793 sprintf_blkptr(blkbuf, &ub->ub_rootbp);
1794 (void) printf("\trootbp = %s\n", blkbuf);
1795 }
1796 (void) printf(footer ? footer : "");
1797 }
1798
1799 static void
1800 dump_config(spa_t *spa)
1801 {
1802 dmu_buf_t *db;
1803 size_t nvsize = 0;
1804 int error = 0;
1805
1806
1807 error = dmu_bonus_hold(spa->spa_meta_objset,
1808 spa->spa_config_object, FTAG, &db);
1809
1810 if (error == 0) {
1811 nvsize = *(uint64_t *)db->db_data;
1812 dmu_buf_rele(db, FTAG);
1813
1814 (void) printf("\nMOS Configuration:\n");
1815 dump_packed_nvlist(spa->spa_meta_objset,
1816 spa->spa_config_object, (void *)&nvsize, 1);
1817 } else {
1818 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
1819 (u_longlong_t)spa->spa_config_object, error);
1820 }
1821 }
1822
1823 static void
1824 dump_cachefile(const char *cachefile)
1825 {
1826 int fd;
1827 struct stat64 statbuf;
1828 char *buf;
1829 nvlist_t *config;
1830
1831 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1832 (void) printf("cannot open '%s': %s\n", cachefile,
1833 strerror(errno));
1834 exit(1);
1835 }
1836
1837 if (fstat64(fd, &statbuf) != 0) {
1838 (void) printf("failed to stat '%s': %s\n", cachefile,
1839 strerror(errno));
1840 exit(1);
1841 }
1842
1843 if ((buf = malloc(statbuf.st_size)) == NULL) {
1844 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
1845 (u_longlong_t)statbuf.st_size);
1846 exit(1);
1847 }
1848
1849 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1850 (void) fprintf(stderr, "failed to read %llu bytes\n",
1851 (u_longlong_t)statbuf.st_size);
1852 exit(1);
1853 }
1854
1855 (void) close(fd);
1856
1857 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
1858 (void) fprintf(stderr, "failed to unpack nvlist\n");
1859 exit(1);
1860 }
1861
1862 free(buf);
1863
1864 dump_nvlist(config, 0);
1865
1866 nvlist_free(config);
1867 }
1868
1869 #define ZDB_MAX_UB_HEADER_SIZE 32
1870
1871 static void
1872 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
1873 {
1874 vdev_t vd;
1875 vdev_t *vdp = &vd;
1876 char header[ZDB_MAX_UB_HEADER_SIZE];
1877
1878 vd.vdev_ashift = ashift;
1879 vdp->vdev_top = vdp;
1880
1881 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
1882 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
1883 uberblock_t *ub = (void *)((char *)lbl + uoff);
1884
1885 if (uberblock_verify(ub))
1886 continue;
1887 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
1888 "Uberblock[%d]\n", i);
1889 dump_uberblock(ub, header, "");
1890 }
1891 }
1892
1893 static void
1894 dump_label(const char *dev)
1895 {
1896 int fd;
1897 vdev_label_t label;
1898 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
1899 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
1900 struct stat64 statbuf;
1901 uint64_t psize, ashift;
1902 int len = strlen(dev) + 1;
1903
1904 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
1905 len++;
1906 path = malloc(len);
1907 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
1908 } else {
1909 path = strdup(dev);
1910 }
1911
1912 if ((fd = open64(path, O_RDONLY)) < 0) {
1913 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
1914 free(path);
1915 exit(1);
1916 }
1917
1918 if (fstat64(fd, &statbuf) != 0) {
1919 (void) printf("failed to stat '%s': %s\n", path,
1920 strerror(errno));
1921 free(path);
1922 (void) close(fd);
1923 exit(1);
1924 }
1925
1926 if (S_ISBLK(statbuf.st_mode)) {
1927 (void) printf("cannot use '%s': character device required\n",
1928 path);
1929 free(path);
1930 (void) close(fd);
1931 exit(1);
1932 }
1933
1934 psize = statbuf.st_size;
1935 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
1936
1937 for (int l = 0; l < VDEV_LABELS; l++) {
1938 nvlist_t *config = NULL;
1939
1940 (void) printf("--------------------------------------------\n");
1941 (void) printf("LABEL %d\n", l);
1942 (void) printf("--------------------------------------------\n");
1943
1944 if (pread64(fd, &label, sizeof (label),
1945 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
1946 (void) printf("failed to read label %d\n", l);
1947 continue;
1948 }
1949
1950 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
1951 (void) printf("failed to unpack label %d\n", l);
1952 ashift = SPA_MINBLOCKSHIFT;
1953 } else {
1954 nvlist_t *vdev_tree = NULL;
1955
1956 dump_nvlist(config, 4);
1957 if ((nvlist_lookup_nvlist(config,
1958 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
1959 (nvlist_lookup_uint64(vdev_tree,
1960 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
1961 ashift = SPA_MINBLOCKSHIFT;
1962 nvlist_free(config);
1963 }
1964 if (dump_opt['u'])
1965 dump_label_uberblocks(&label, ashift);
1966 }
1967
1968 free(path);
1969 (void) close(fd);
1970 }
1971
1972 /*ARGSUSED*/
1973 static int
1974 dump_one_dir(const char *dsname, void *arg)
1975 {
1976 int error;
1977 objset_t *os;
1978
1979 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
1980 if (error) {
1981 (void) printf("Could not open %s, error %d\n", dsname, error);
1982 return (0);
1983 }
1984 dump_dir(os);
1985 dmu_objset_disown(os, FTAG);
1986 fuid_table_destroy();
1987 sa_loaded = B_FALSE;
1988 return (0);
1989 }
1990
1991 /*
1992 * Block statistics.
1993 */
1994 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1)
1995 typedef struct zdb_blkstats {
1996 uint64_t zb_asize;
1997 uint64_t zb_lsize;
1998 uint64_t zb_psize;
1999 uint64_t zb_count;
2000 uint64_t zb_gangs;
2001 uint64_t zb_ditto_samevdev;
2002 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2003 } zdb_blkstats_t;
2004
2005 /*
2006 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2007 */
2008 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2009 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2010 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2011 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2012
2013 static char *zdb_ot_extname[] = {
2014 "deferred free",
2015 "dedup ditto",
2016 "other",
2017 "Total",
2018 };
2019
2020 #define ZB_TOTAL DN_MAX_LEVELS
2021
2022 typedef struct zdb_cb {
2023 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2024 uint64_t zcb_dedup_asize;
2025 uint64_t zcb_dedup_blocks;
2026 uint64_t zcb_start;
2027 uint64_t zcb_lastprint;
2028 uint64_t zcb_totalasize;
2029 uint64_t zcb_errors[256];
2030 int zcb_readfails;
2031 int zcb_haderrors;
2032 spa_t *zcb_spa;
2033 } zdb_cb_t;
2034
2035 static void
2036 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2037 dmu_object_type_t type)
2038 {
2039 uint64_t refcnt = 0;
2040
2041 ASSERT(type < ZDB_OT_TOTAL);
2042
2043 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2044 return;
2045
2046 for (int i = 0; i < 4; i++) {
2047 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2048 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2049 int equal;
2050 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2051
2052 zb->zb_asize += BP_GET_ASIZE(bp);
2053 zb->zb_lsize += BP_GET_LSIZE(bp);
2054 zb->zb_psize += BP_GET_PSIZE(bp);
2055 zb->zb_count++;
2056 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++;
2057
2058 zb->zb_gangs += BP_COUNT_GANG(bp);
2059
2060 switch (BP_GET_NDVAS(bp)) {
2061 case 2:
2062 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2063 DVA_GET_VDEV(&bp->blk_dva[1]))
2064 zb->zb_ditto_samevdev++;
2065 break;
2066 case 3:
2067 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2068 DVA_GET_VDEV(&bp->blk_dva[1])) +
2069 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2070 DVA_GET_VDEV(&bp->blk_dva[2])) +
2071 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2072 DVA_GET_VDEV(&bp->blk_dva[2]));
2073 if (equal != 0)
2074 zb->zb_ditto_samevdev++;
2075 break;
2076 }
2077
2078 }
2079
2080 if (dump_opt['L'])
2081 return;
2082
2083 if (BP_GET_DEDUP(bp)) {
2084 ddt_t *ddt;
2085 ddt_entry_t *dde;
2086
2087 ddt = ddt_select(zcb->zcb_spa, bp);
2088 ddt_enter(ddt);
2089 dde = ddt_lookup(ddt, bp, B_FALSE);
2090
2091 if (dde == NULL) {
2092 refcnt = 0;
2093 } else {
2094 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2095 ddt_phys_decref(ddp);
2096 refcnt = ddp->ddp_refcnt;
2097 if (ddt_phys_total_refcnt(dde) == 0)
2098 ddt_remove(ddt, dde);
2099 }
2100 ddt_exit(ddt);
2101 }
2102
2103 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2104 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2105 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2106 }
2107
2108 static void
2109 zdb_blkptr_done(zio_t *zio)
2110 {
2111 spa_t *spa = zio->io_spa;
2112 blkptr_t *bp = zio->io_bp;
2113 int ioerr = zio->io_error;
2114 zdb_cb_t *zcb = zio->io_private;
2115 zbookmark_t *zb = &zio->io_bookmark;
2116
2117 zio_data_buf_free(zio->io_data, zio->io_size);
2118
2119 mutex_enter(&spa->spa_scrub_lock);
2120 spa->spa_scrub_inflight--;
2121 cv_broadcast(&spa->spa_scrub_io_cv);
2122
2123 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2124 char blkbuf[BP_SPRINTF_LEN];
2125
2126 zcb->zcb_haderrors = 1;
2127 zcb->zcb_errors[ioerr]++;
2128
2129 if (dump_opt['b'] >= 2)
2130 sprintf_blkptr(blkbuf, bp);
2131 else
2132 blkbuf[0] = '\0';
2133
2134 (void) printf("zdb_blkptr_cb: "
2135 "Got error %d reading "
2136 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2137 ioerr,
2138 (u_longlong_t)zb->zb_objset,
2139 (u_longlong_t)zb->zb_object,
2140 (u_longlong_t)zb->zb_level,
2141 (u_longlong_t)zb->zb_blkid,
2142 blkbuf);
2143 }
2144 mutex_exit(&spa->spa_scrub_lock);
2145 }
2146
2147 static int
2148 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2149 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2150 {
2151 zdb_cb_t *zcb = arg;
2152 char blkbuf[BP_SPRINTF_LEN];
2153 dmu_object_type_t type;
2154 boolean_t is_metadata;
2155
2156 if (bp == NULL)
2157 return (0);
2158
2159 type = BP_GET_TYPE(bp);
2160
2161 zdb_count_block(zcb, zilog, bp,
2162 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2163
2164 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2165
2166 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) {
2167 size_t size = BP_GET_PSIZE(bp);
2168 void *data = zio_data_buf_alloc(size);
2169 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2170
2171 /* If it's an intent log block, failure is expected. */
2172 if (zb->zb_level == ZB_ZIL_LEVEL)
2173 flags |= ZIO_FLAG_SPECULATIVE;
2174
2175 mutex_enter(&spa->spa_scrub_lock);
2176 while (spa->spa_scrub_inflight > max_inflight)
2177 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2178 spa->spa_scrub_inflight++;
2179 mutex_exit(&spa->spa_scrub_lock);
2180
2181 zio_nowait(zio_read(NULL, spa, bp, data, size,
2182 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2183 }
2184
2185 zcb->zcb_readfails = 0;
2186
2187 if (dump_opt['b'] >= 5) {
2188 sprintf_blkptr(blkbuf, bp);
2189 (void) printf("objset %llu object %llu "
2190 "level %lld offset 0x%llx %s\n",
2191 (u_longlong_t)zb->zb_objset,
2192 (u_longlong_t)zb->zb_object,
2193 (longlong_t)zb->zb_level,
2194 (u_longlong_t)blkid2offset(dnp, bp, zb),
2195 blkbuf);
2196 }
2197
2198 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) &&
2199 gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2200 uint64_t now = gethrtime();
2201 char buf[10];
2202 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2203 int kb_per_sec =
2204 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2205 int sec_remaining =
2206 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2207
2208 zfs_nicenum(bytes, buf, sizeof (buf));
2209 (void) fprintf(stderr,
2210 "\r%5s completed (%4dMB/s) "
2211 "estimated time remaining: %uhr %02umin %02usec ",
2212 buf, kb_per_sec / 1024,
2213 sec_remaining / 60 / 60,
2214 sec_remaining / 60 % 60,
2215 sec_remaining % 60);
2216
2217 zcb->zcb_lastprint = now;
2218 }
2219
2220 return (0);
2221 }
2222
2223 static void
2224 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size)
2225 {
2226 vdev_t *vd = sm->sm_ppd;
2227
2228 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2229 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2230 }
2231
2232 /* ARGSUSED */
2233 static void
2234 zdb_space_map_load(space_map_t *sm)
2235 {
2236 }
2237
2238 static void
2239 zdb_space_map_unload(space_map_t *sm)
2240 {
2241 space_map_vacate(sm, zdb_leak, sm);
2242 }
2243
2244 /* ARGSUSED */
2245 static void
2246 zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size)
2247 {
2248 }
2249
2250 static space_map_ops_t zdb_space_map_ops = {
2251 zdb_space_map_load,
2252 zdb_space_map_unload,
2253 NULL, /* alloc */
2254 zdb_space_map_claim,
2255 NULL, /* free */
2256 NULL /* maxsize */
2257 };
2258
2259 static void
2260 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2261 {
2262 ddt_bookmark_t ddb = { 0 };
2263 ddt_entry_t dde;
2264 int error;
2265
2266 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2267 blkptr_t blk;
2268 ddt_phys_t *ddp = dde.dde_phys;
2269
2270 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2271 return;
2272
2273 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2274
2275 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2276 if (ddp->ddp_phys_birth == 0)
2277 continue;
2278 ddt_bp_create(ddb.ddb_checksum,
2279 &dde.dde_key, ddp, &blk);
2280 if (p == DDT_PHYS_DITTO) {
2281 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2282 } else {
2283 zcb->zcb_dedup_asize +=
2284 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2285 zcb->zcb_dedup_blocks++;
2286 }
2287 }
2288 if (!dump_opt['L']) {
2289 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2290 ddt_enter(ddt);
2291 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2292 ddt_exit(ddt);
2293 }
2294 }
2295
2296 ASSERT(error == ENOENT);
2297 }
2298
2299 static void
2300 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2301 {
2302 zcb->zcb_spa = spa;
2303
2304 if (!dump_opt['L']) {
2305 vdev_t *rvd = spa->spa_root_vdev;
2306 for (int c = 0; c < rvd->vdev_children; c++) {
2307 vdev_t *vd = rvd->vdev_child[c];
2308 for (int m = 0; m < vd->vdev_ms_count; m++) {
2309 metaslab_t *msp = vd->vdev_ms[m];
2310 mutex_enter(&msp->ms_lock);
2311 space_map_unload(msp->ms_map);
2312 VERIFY(space_map_load(msp->ms_map,
2313 &zdb_space_map_ops, SM_ALLOC, &msp->ms_smo,
2314 spa->spa_meta_objset) == 0);
2315 msp->ms_map->sm_ppd = vd;
2316 mutex_exit(&msp->ms_lock);
2317 }
2318 }
2319 }
2320
2321 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2322
2323 zdb_ddt_leak_init(spa, zcb);
2324
2325 spa_config_exit(spa, SCL_CONFIG, FTAG);
2326 }
2327
2328 static void
2329 zdb_leak_fini(spa_t *spa)
2330 {
2331 if (!dump_opt['L']) {
2332 vdev_t *rvd = spa->spa_root_vdev;
2333 for (int c = 0; c < rvd->vdev_children; c++) {
2334 vdev_t *vd = rvd->vdev_child[c];
2335 for (int m = 0; m < vd->vdev_ms_count; m++) {
2336 metaslab_t *msp = vd->vdev_ms[m];
2337 mutex_enter(&msp->ms_lock);
2338 space_map_unload(msp->ms_map);
2339 mutex_exit(&msp->ms_lock);
2340 }
2341 }
2342 }
2343 }
2344
2345 /* ARGSUSED */
2346 static int
2347 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2348 {
2349 zdb_cb_t *zcb = arg;
2350
2351 if (dump_opt['b'] >= 5) {
2352 char blkbuf[BP_SPRINTF_LEN];
2353 sprintf_blkptr(blkbuf, bp);
2354 (void) printf("[%s] %s\n",
2355 "deferred free", blkbuf);
2356 }
2357 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2358 return (0);
2359 }
2360
2361 static int
2362 dump_block_stats(spa_t *spa)
2363 {
2364 zdb_cb_t zcb = { 0 };
2365 zdb_blkstats_t *zb, *tzb;
2366 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2367 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2368 int leaks = 0;
2369
2370 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2371 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2372 (dump_opt['c'] == 1) ? "metadata " : "",
2373 dump_opt['c'] ? "checksums " : "",
2374 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2375 !dump_opt['L'] ? "nothing leaked " : "");
2376
2377 /*
2378 * Load all space maps as SM_ALLOC maps, then traverse the pool
2379 * claiming each block we discover. If the pool is perfectly
2380 * consistent, the space maps will be empty when we're done.
2381 * Anything left over is a leak; any block we can't claim (because
2382 * it's not part of any space map) is a double allocation,
2383 * reference to a freed block, or an unclaimed log block.
2384 */
2385 zdb_leak_init(spa, &zcb);
2386
2387 /*
2388 * If there's a deferred-free bplist, process that first.
2389 */
2390 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2391 count_block_cb, &zcb, NULL);
2392 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2393 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2394 count_block_cb, &zcb, NULL);
2395 }
2396 if (spa_feature_is_active(spa,
2397 &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) {
2398 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2399 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2400 &zcb, NULL));
2401 }
2402
2403 if (dump_opt['c'] > 1)
2404 flags |= TRAVERSE_PREFETCH_DATA;
2405
2406 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2407 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2408 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2409
2410 /*
2411 * If we've traversed the data blocks then we need to wait for those
2412 * I/Os to complete. We leverage "The Godfather" zio to wait on
2413 * all async I/Os to complete.
2414 */
2415 if (dump_opt['c']) {
2416 (void) zio_wait(spa->spa_async_zio_root);
2417 spa->spa_async_zio_root = zio_root(spa, NULL, NULL,
2418 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2419 ZIO_FLAG_GODFATHER);
2420 }
2421
2422 if (zcb.zcb_haderrors) {
2423 (void) printf("\nError counts:\n\n");
2424 (void) printf("\t%5s %s\n", "errno", "count");
2425 for (int e = 0; e < 256; e++) {
2426 if (zcb.zcb_errors[e] != 0) {
2427 (void) printf("\t%5d %llu\n",
2428 e, (u_longlong_t)zcb.zcb_errors[e]);
2429 }
2430 }
2431 }
2432
2433 /*
2434 * Report any leaked segments.
2435 */
2436 zdb_leak_fini(spa);
2437
2438 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2439
2440 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2441 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2442
2443 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2444 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2445
2446 if (total_found == total_alloc) {
2447 if (!dump_opt['L'])
2448 (void) printf("\n\tNo leaks (block sum matches space"
2449 " maps exactly)\n");
2450 } else {
2451 (void) printf("block traversal size %llu != alloc %llu "
2452 "(%s %lld)\n",
2453 (u_longlong_t)total_found,
2454 (u_longlong_t)total_alloc,
2455 (dump_opt['L']) ? "unreachable" : "leaked",
2456 (longlong_t)(total_alloc - total_found));
2457 leaks = 1;
2458 }
2459
2460 if (tzb->zb_count == 0)
2461 return (2);
2462
2463 (void) printf("\n");
2464 (void) printf("\tbp count: %10llu\n",
2465 (u_longlong_t)tzb->zb_count);
2466 (void) printf("\tganged count: %10llu\n",
2467 (longlong_t)tzb->zb_gangs);
2468 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2469 (u_longlong_t)tzb->zb_lsize,
2470 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2471 (void) printf("\tbp physical: %10llu avg:"
2472 " %6llu compression: %6.2f\n",
2473 (u_longlong_t)tzb->zb_psize,
2474 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2475 (double)tzb->zb_lsize / tzb->zb_psize);
2476 (void) printf("\tbp allocated: %10llu avg:"
2477 " %6llu compression: %6.2f\n",
2478 (u_longlong_t)tzb->zb_asize,
2479 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2480 (double)tzb->zb_lsize / tzb->zb_asize);
2481 (void) printf("\tbp deduped: %10llu ref>1:"
2482 " %6llu deduplication: %6.2f\n",
2483 (u_longlong_t)zcb.zcb_dedup_asize,
2484 (u_longlong_t)zcb.zcb_dedup_blocks,
2485 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2486 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2487 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2488
2489 if (tzb->zb_ditto_samevdev != 0) {
2490 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2491 (longlong_t)tzb->zb_ditto_samevdev);
2492 }
2493
2494 if (dump_opt['b'] >= 2) {
2495 int l, t, level;
2496 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2497 "\t avg\t comp\t%%Total\tType\n");
2498
2499 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2500 char csize[32], lsize[32], psize[32], asize[32];
2501 char avg[32], gang[32];
2502 char *typename;
2503
2504 if (t < DMU_OT_NUMTYPES)
2505 typename = dmu_ot[t].ot_name;
2506 else
2507 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2508
2509 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2510 (void) printf("%6s\t%5s\t%5s\t%5s"
2511 "\t%5s\t%5s\t%6s\t%s\n",
2512 "-",
2513 "-",
2514 "-",
2515 "-",
2516 "-",
2517 "-",
2518 "-",
2519 typename);
2520 continue;
2521 }
2522
2523 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2524 level = (l == -1 ? ZB_TOTAL : l);
2525 zb = &zcb.zcb_type[level][t];
2526
2527 if (zb->zb_asize == 0)
2528 continue;
2529
2530 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2531 continue;
2532
2533 if (level == 0 && zb->zb_asize ==
2534 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2535 continue;
2536
2537 zdb_nicenum(zb->zb_count, csize);
2538 zdb_nicenum(zb->zb_lsize, lsize);
2539 zdb_nicenum(zb->zb_psize, psize);
2540 zdb_nicenum(zb->zb_asize, asize);
2541 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2542 zdb_nicenum(zb->zb_gangs, gang);
2543
2544 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2545 "\t%5.2f\t%6.2f\t",
2546 csize, lsize, psize, asize, avg,
2547 (double)zb->zb_lsize / zb->zb_psize,
2548 100.0 * zb->zb_asize / tzb->zb_asize);
2549
2550 if (level == ZB_TOTAL)
2551 (void) printf("%s\n", typename);
2552 else
2553 (void) printf(" L%d %s\n",
2554 level, typename);
2555
2556 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
2557 (void) printf("\t number of ganged "
2558 "blocks: %s\n", gang);
2559 }
2560
2561 if (dump_opt['b'] >= 4) {
2562 (void) printf("psize "
2563 "(in 512-byte sectors): "
2564 "number of blocks\n");
2565 dump_histogram(zb->zb_psize_histogram,
2566 PSIZE_HISTO_SIZE);
2567 }
2568 }
2569 }
2570 }
2571
2572 (void) printf("\n");
2573
2574 if (leaks)
2575 return (2);
2576
2577 if (zcb.zcb_haderrors)
2578 return (3);
2579
2580 return (0);
2581 }
2582
2583 typedef struct zdb_ddt_entry {
2584 ddt_key_t zdde_key;
2585 uint64_t zdde_ref_blocks;
2586 uint64_t zdde_ref_lsize;
2587 uint64_t zdde_ref_psize;
2588 uint64_t zdde_ref_dsize;
2589 avl_node_t zdde_node;
2590 } zdb_ddt_entry_t;
2591
2592 /* ARGSUSED */
2593 static int
2594 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2595 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2596 {
2597 avl_tree_t *t = arg;
2598 avl_index_t where;
2599 zdb_ddt_entry_t *zdde, zdde_search;
2600
2601 if (bp == NULL)
2602 return (0);
2603
2604 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2605 (void) printf("traversing objset %llu, %llu objects, "
2606 "%lu blocks so far\n",
2607 (u_longlong_t)zb->zb_objset,
2608 (u_longlong_t)bp->blk_fill,
2609 avl_numnodes(t));
2610 }
2611
2612 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2613 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2614 return (0);
2615
2616 ddt_key_fill(&zdde_search.zdde_key, bp);
2617
2618 zdde = avl_find(t, &zdde_search, &where);
2619
2620 if (zdde == NULL) {
2621 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2622 zdde->zdde_key = zdde_search.zdde_key;
2623 avl_insert(t, zdde, where);
2624 }
2625
2626 zdde->zdde_ref_blocks += 1;
2627 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2628 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2629 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2630
2631 return (0);
2632 }
2633
2634 static void
2635 dump_simulated_ddt(spa_t *spa)
2636 {
2637 avl_tree_t t;
2638 void *cookie = NULL;
2639 zdb_ddt_entry_t *zdde;
2640 ddt_histogram_t ddh_total = { 0 };
2641 ddt_stat_t dds_total = { 0 };
2642
2643 avl_create(&t, ddt_entry_compare,
2644 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2645
2646 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2647
2648 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2649 zdb_ddt_add_cb, &t);
2650
2651 spa_config_exit(spa, SCL_CONFIG, FTAG);
2652
2653 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2654 ddt_stat_t dds;
2655 uint64_t refcnt = zdde->zdde_ref_blocks;
2656 ASSERT(refcnt != 0);
2657
2658 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2659 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2660 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2661 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2662
2663 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2664 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2665 dds.dds_ref_psize = zdde->zdde_ref_psize;
2666 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2667
2668 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0);
2669
2670 umem_free(zdde, sizeof (*zdde));
2671 }
2672
2673 avl_destroy(&t);
2674
2675 ddt_histogram_stat(&dds_total, &ddh_total);
2676
2677 (void) printf("Simulated DDT histogram:\n");
2678
2679 zpool_dump_ddt(&dds_total, &ddh_total);
2680
2681 dump_dedup_ratio(&dds_total);
2682 }
2683
2684 static void
2685 dump_zpool(spa_t *spa)
2686 {
2687 dsl_pool_t *dp = spa_get_dsl(spa);
2688 int rc = 0;
2689
2690 if (dump_opt['S']) {
2691 dump_simulated_ddt(spa);
2692 return;
2693 }
2694
2695 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2696 (void) printf("\nCached configuration:\n");
2697 dump_nvlist(spa->spa_config, 8);
2698 }
2699
2700 if (dump_opt['C'])
2701 dump_config(spa);
2702
2703 if (dump_opt['u'])
2704 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2705
2706 if (dump_opt['D'])
2707 dump_all_ddts(spa);
2708
2709 if (dump_opt['d'] > 2 || dump_opt['m'])
2710 dump_metaslabs(spa);
2711
2712 if (dump_opt['d'] || dump_opt['i']) {
2713 dump_dir(dp->dp_meta_objset);
2714 if (dump_opt['d'] >= 3) {
2715 dump_bpobj(&spa->spa_deferred_bpobj,
2716 "Deferred frees", 0);
2717 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2718 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2719 "Pool snapshot frees", 0);
2720 }
2721
2722 if (spa_feature_is_active(spa,
2723 &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) {
2724 dump_bptree(spa->spa_meta_objset,
2725 spa->spa_dsl_pool->dp_bptree_obj,
2726 "Pool dataset frees");
2727 }
2728 dump_dtl(spa->spa_root_vdev, 0);
2729 }
2730 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
2731 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
2732 }
2733 if (dump_opt['b'] || dump_opt['c'])
2734 rc = dump_block_stats(spa);
2735
2736 if (dump_opt['s'])
2737 show_pool_stats(spa);
2738
2739 if (dump_opt['h'])
2740 dump_history(spa);
2741
2742 if (rc != 0)
2743 exit(rc);
2744 }
2745
2746 #define ZDB_FLAG_CHECKSUM 0x0001
2747 #define ZDB_FLAG_DECOMPRESS 0x0002
2748 #define ZDB_FLAG_BSWAP 0x0004
2749 #define ZDB_FLAG_GBH 0x0008
2750 #define ZDB_FLAG_INDIRECT 0x0010
2751 #define ZDB_FLAG_PHYS 0x0020
2752 #define ZDB_FLAG_RAW 0x0040
2753 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
2754
2755 int flagbits[256];
2756
2757 static void
2758 zdb_print_blkptr(blkptr_t *bp, int flags)
2759 {
2760 char blkbuf[BP_SPRINTF_LEN];
2761
2762 if (flags & ZDB_FLAG_BSWAP)
2763 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
2764
2765 sprintf_blkptr(blkbuf, bp);
2766 (void) printf("%s\n", blkbuf);
2767 }
2768
2769 static void
2770 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
2771 {
2772 int i;
2773
2774 for (i = 0; i < nbps; i++)
2775 zdb_print_blkptr(&bp[i], flags);
2776 }
2777
2778 static void
2779 zdb_dump_gbh(void *buf, int flags)
2780 {
2781 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
2782 }
2783
2784 static void
2785 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
2786 {
2787 if (flags & ZDB_FLAG_BSWAP)
2788 byteswap_uint64_array(buf, size);
2789 (void) write(1, buf, size);
2790 }
2791
2792 static void
2793 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
2794 {
2795 uint64_t *d = (uint64_t *)buf;
2796 int nwords = size / sizeof (uint64_t);
2797 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
2798 int i, j;
2799 char *hdr, *c;
2800
2801
2802 if (do_bswap)
2803 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
2804 else
2805 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
2806
2807 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
2808
2809 for (i = 0; i < nwords; i += 2) {
2810 (void) printf("%06llx: %016llx %016llx ",
2811 (u_longlong_t)(i * sizeof (uint64_t)),
2812 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
2813 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
2814
2815 c = (char *)&d[i];
2816 for (j = 0; j < 2 * sizeof (uint64_t); j++)
2817 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
2818 (void) printf("\n");
2819 }
2820 }
2821
2822 /*
2823 * There are two acceptable formats:
2824 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
2825 * child[.child]* - For example: 0.1.1
2826 *
2827 * The second form can be used to specify arbitrary vdevs anywhere
2828 * in the heirarchy. For example, in a pool with a mirror of
2829 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
2830 */
2831 static vdev_t *
2832 zdb_vdev_lookup(vdev_t *vdev, char *path)
2833 {
2834 char *s, *p, *q;
2835 int i;
2836
2837 if (vdev == NULL)
2838 return (NULL);
2839
2840 /* First, assume the x.x.x.x format */
2841 i = (int)strtoul(path, &s, 10);
2842 if (s == path || (s && *s != '.' && *s != '\0'))
2843 goto name;
2844 if (i < 0 || i >= vdev->vdev_children)
2845 return (NULL);
2846
2847 vdev = vdev->vdev_child[i];
2848 if (*s == '\0')
2849 return (vdev);
2850 return (zdb_vdev_lookup(vdev, s+1));
2851
2852 name:
2853 for (i = 0; i < vdev->vdev_children; i++) {
2854 vdev_t *vc = vdev->vdev_child[i];
2855
2856 if (vc->vdev_path == NULL) {
2857 vc = zdb_vdev_lookup(vc, path);
2858 if (vc == NULL)
2859 continue;
2860 else
2861 return (vc);
2862 }
2863
2864 p = strrchr(vc->vdev_path, '/');
2865 p = p ? p + 1 : vc->vdev_path;
2866 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
2867
2868 if (strcmp(vc->vdev_path, path) == 0)
2869 return (vc);
2870 if (strcmp(p, path) == 0)
2871 return (vc);
2872 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
2873 return (vc);
2874 }
2875
2876 return (NULL);
2877 }
2878
2879 /*
2880 * Read a block from a pool and print it out. The syntax of the
2881 * block descriptor is:
2882 *
2883 * pool:vdev_specifier:offset:size[:flags]
2884 *
2885 * pool - The name of the pool you wish to read from
2886 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
2887 * offset - offset, in hex, in bytes
2888 * size - Amount of data to read, in hex, in bytes
2889 * flags - A string of characters specifying options
2890 * b: Decode a blkptr at given offset within block
2891 * *c: Calculate and display checksums
2892 * d: Decompress data before dumping
2893 * e: Byteswap data before dumping
2894 * g: Display data as a gang block header
2895 * i: Display as an indirect block
2896 * p: Do I/O to physical offset
2897 * r: Dump raw data to stdout
2898 *
2899 * * = not yet implemented
2900 */
2901 static void
2902 zdb_read_block(char *thing, spa_t *spa)
2903 {
2904 blkptr_t blk, *bp = &blk;
2905 dva_t *dva = bp->blk_dva;
2906 int flags = 0;
2907 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
2908 zio_t *zio;
2909 vdev_t *vd;
2910 void *pbuf, *lbuf, *buf;
2911 char *s, *p, *dup, *vdev, *flagstr;
2912 int i, error;
2913
2914 dup = strdup(thing);
2915 s = strtok(dup, ":");
2916 vdev = s ? s : "";
2917 s = strtok(NULL, ":");
2918 offset = strtoull(s ? s : "", NULL, 16);
2919 s = strtok(NULL, ":");
2920 size = strtoull(s ? s : "", NULL, 16);
2921 s = strtok(NULL, ":");
2922 flagstr = s ? s : "";
2923
2924 s = NULL;
2925 if (size == 0)
2926 s = "size must not be zero";
2927 if (!IS_P2ALIGNED(size, DEV_BSIZE))
2928 s = "size must be a multiple of sector size";
2929 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
2930 s = "offset must be a multiple of sector size";
2931 if (s) {
2932 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
2933 free(dup);
2934 return;
2935 }
2936
2937 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
2938 for (i = 0; flagstr[i]; i++) {
2939 int bit = flagbits[(uchar_t)flagstr[i]];
2940
2941 if (bit == 0) {
2942 (void) printf("***Invalid flag: %c\n",
2943 flagstr[i]);
2944 continue;
2945 }
2946 flags |= bit;
2947
2948 /* If it's not something with an argument, keep going */
2949 if ((bit & (ZDB_FLAG_CHECKSUM |
2950 ZDB_FLAG_PRINT_BLKPTR)) == 0)
2951 continue;
2952
2953 p = &flagstr[i + 1];
2954 if (bit == ZDB_FLAG_PRINT_BLKPTR)
2955 blkptr_offset = strtoull(p, &p, 16);
2956 if (*p != ':' && *p != '\0') {
2957 (void) printf("***Invalid flag arg: '%s'\n", s);
2958 free(dup);
2959 return;
2960 }
2961 }
2962 }
2963
2964 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
2965 if (vd == NULL) {
2966 (void) printf("***Invalid vdev: %s\n", vdev);
2967 free(dup);
2968 return;
2969 } else {
2970 if (vd->vdev_path)
2971 (void) fprintf(stderr, "Found vdev: %s\n",
2972 vd->vdev_path);
2973 else
2974 (void) fprintf(stderr, "Found vdev type: %s\n",
2975 vd->vdev_ops->vdev_op_type);
2976 }
2977
2978 psize = size;
2979 lsize = size;
2980
2981 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2982 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2983
2984 BP_ZERO(bp);
2985
2986 DVA_SET_VDEV(&dva[0], vd->vdev_id);
2987 DVA_SET_OFFSET(&dva[0], offset);
2988 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
2989 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
2990
2991 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
2992
2993 BP_SET_LSIZE(bp, lsize);
2994 BP_SET_PSIZE(bp, psize);
2995 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
2996 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
2997 BP_SET_TYPE(bp, DMU_OT_NONE);
2998 BP_SET_LEVEL(bp, 0);
2999 BP_SET_DEDUP(bp, 0);
3000 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3001
3002 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3003 zio = zio_root(spa, NULL, NULL, 0);
3004
3005 if (vd == vd->vdev_top) {
3006 /*
3007 * Treat this as a normal block read.
3008 */
3009 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3010 ZIO_PRIORITY_SYNC_READ,
3011 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3012 } else {
3013 /*
3014 * Treat this as a vdev child I/O.
3015 */
3016 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3017 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3018 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3019 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3020 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3021 }
3022
3023 error = zio_wait(zio);
3024 spa_config_exit(spa, SCL_STATE, FTAG);
3025
3026 if (error) {
3027 (void) printf("Read of %s failed, error: %d\n", thing, error);
3028 goto out;
3029 }
3030
3031 if (flags & ZDB_FLAG_DECOMPRESS) {
3032 /*
3033 * We don't know how the data was compressed, so just try
3034 * every decompress function at every inflated blocksize.
3035 */
3036 enum zio_compress c;
3037 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3038 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3039
3040 bcopy(pbuf, pbuf2, psize);
3041
3042 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3043 SPA_MAXBLOCKSIZE - psize) == 0);
3044
3045 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3046 SPA_MAXBLOCKSIZE - psize) == 0);
3047
3048 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3049 lsize -= SPA_MINBLOCKSIZE) {
3050 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3051 if (zio_decompress_data(c, pbuf, lbuf,
3052 psize, lsize) == 0 &&
3053 zio_decompress_data(c, pbuf2, lbuf2,
3054 psize, lsize) == 0 &&
3055 bcmp(lbuf, lbuf2, lsize) == 0)
3056 break;
3057 }
3058 if (c != ZIO_COMPRESS_FUNCTIONS)
3059 break;
3060 lsize -= SPA_MINBLOCKSIZE;
3061 }
3062
3063 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3064 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3065
3066 if (lsize <= psize) {
3067 (void) printf("Decompress of %s failed\n", thing);
3068 goto out;
3069 }
3070 buf = lbuf;
3071 size = lsize;
3072 } else {
3073 buf = pbuf;
3074 size = psize;
3075 }
3076
3077 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3078 zdb_print_blkptr((blkptr_t *)(void *)
3079 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3080 else if (flags & ZDB_FLAG_RAW)
3081 zdb_dump_block_raw(buf, size, flags);
3082 else if (flags & ZDB_FLAG_INDIRECT)
3083 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3084 flags);
3085 else if (flags & ZDB_FLAG_GBH)
3086 zdb_dump_gbh(buf, flags);
3087 else
3088 zdb_dump_block(thing, buf, size, flags);
3089
3090 out:
3091 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3092 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3093 free(dup);
3094 }
3095
3096 static boolean_t
3097 pool_match(nvlist_t *cfg, char *tgt)
3098 {
3099 uint64_t v, guid = strtoull(tgt, NULL, 0);
3100 char *s;
3101
3102 if (guid != 0) {
3103 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3104 return (v == guid);
3105 } else {
3106 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3107 return (strcmp(s, tgt) == 0);
3108 }
3109 return (B_FALSE);
3110 }
3111
3112 static char *
3113 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3114 {
3115 nvlist_t *pools;
3116 nvlist_t *match = NULL;
3117 char *name = NULL;
3118 char *sepp = NULL;
3119 char sep;
3120 int count = 0;
3121 importargs_t args = { 0 };
3122
3123 args.paths = dirc;
3124 args.path = dirv;
3125 args.can_be_active = B_TRUE;
3126
3127 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3128 sep = *sepp;
3129 *sepp = '\0';
3130 }
3131
3132 pools = zpool_search_import(g_zfs, &args);
3133
3134 if (pools != NULL) {
3135 nvpair_t *elem = NULL;
3136 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3137 verify(nvpair_value_nvlist(elem, configp) == 0);
3138 if (pool_match(*configp, *target)) {
3139 count++;
3140 if (match != NULL) {
3141 /* print previously found config */
3142 if (name != NULL) {
3143 (void) printf("%s\n", name);
3144 dump_nvlist(match, 8);
3145 name = NULL;
3146 }
3147 (void) printf("%s\n",
3148 nvpair_name(elem));
3149 dump_nvlist(*configp, 8);
3150 } else {
3151 match = *configp;
3152 name = nvpair_name(elem);
3153 }
3154 }
3155 }
3156 }
3157 if (count > 1)
3158 (void) fatal("\tMatched %d pools - use pool GUID "
3159 "instead of pool name or \n"
3160 "\tpool name part of a dataset name to select pool", count);
3161
3162 if (sepp)
3163 *sepp = sep;
3164 /*
3165 * If pool GUID was specified for pool id, replace it with pool name
3166 */
3167 if (name && (strstr(*target, name) != *target)) {
3168 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3169
3170 *target = umem_alloc(sz, UMEM_NOFAIL);
3171 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3172 }
3173
3174 *configp = name ? match : NULL;
3175
3176 return (name);
3177 }
3178
3179 int
3180 main(int argc, char **argv)
3181 {
3182 int i, c;
3183 struct rlimit rl = { 1024, 1024 };
3184 spa_t *spa = NULL;
3185 objset_t *os = NULL;
3186 int dump_all = 1;
3187 int verbose = 0;
3188 int error = 0;
3189 char **searchdirs = NULL;
3190 int nsearch = 0;
3191 char *target;
3192 nvlist_t *policy = NULL;
3193 uint64_t max_txg = UINT64_MAX;
3194 int rewind = ZPOOL_NEVER_REWIND;
3195
3196 (void) setrlimit(RLIMIT_NOFILE, &rl);
3197 (void) enable_extended_FILE_stdio(-1, -1);
3198
3199 dprintf_setup(&argc, argv);
3200
3201 while ((c = getopt(argc, argv, "bcdhilmM:suCDRSAFLXevp:t:U:P")) != -1) {
3202 switch (c) {
3203 case 'b':
3204 case 'c':
3205 case 'd':
3206 case 'h':
3207 case 'i':
3208 case 'l':
3209 case 'm':
3210 case 's':
3211 case 'u':
3212 case 'C':
3213 case 'D':
3214 case 'R':
3215 case 'S':
3216 dump_opt[c]++;
3217 dump_all = 0;
3218 break;
3219 case 'A':
3220 case 'F':
3221 case 'L':
3222 case 'X':
3223 case 'e':
3224 case 'P':
3225 dump_opt[c]++;
3226 break;
3227 case 'v':
3228 verbose++;
3229 break;
3230 case 'M':
3231 max_inflight = strtoull(optarg, NULL, 0);
3232 if (max_inflight == 0) {
3233 (void) fprintf(stderr, "maximum number "
3234 "of inflight I/Os must be greater "
3235 "than 0\n");
3236 usage();
3237 }
3238 break;
3239 case 'p':
3240 if (searchdirs == NULL) {
3241 searchdirs = umem_alloc(sizeof (char *),
3242 UMEM_NOFAIL);
3243 } else {
3244 char **tmp = umem_alloc((nsearch + 1) *
3245 sizeof (char *), UMEM_NOFAIL);
3246 bcopy(searchdirs, tmp, nsearch *
3247 sizeof (char *));
3248 umem_free(searchdirs,
3249 nsearch * sizeof (char *));
3250 searchdirs = tmp;
3251 }
3252 searchdirs[nsearch++] = optarg;
3253 break;
3254 case 't':
3255 max_txg = strtoull(optarg, NULL, 0);
3256 if (max_txg < TXG_INITIAL) {
3257 (void) fprintf(stderr, "incorrect txg "
3258 "specified: %s\n", optarg);
3259 usage();
3260 }
3261 break;
3262 case 'U':
3263 spa_config_path = optarg;
3264 break;
3265 default:
3266 usage();
3267 break;
3268 }
3269 }
3270
3271 if (!dump_opt['e'] && searchdirs != NULL) {
3272 (void) fprintf(stderr, "-p option requires use of -e\n");
3273 usage();
3274 }
3275
3276 kernel_init(FREAD);
3277 g_zfs = libzfs_init();
3278 ASSERT(g_zfs != NULL);
3279
3280 if (dump_all)
3281 verbose = MAX(verbose, 1);
3282
3283 for (c = 0; c < 256; c++) {
3284 if (dump_all && !strchr("elAFLRSXP", c))
3285 dump_opt[c] = 1;
3286 if (dump_opt[c])
3287 dump_opt[c] += verbose;
3288 }
3289
3290 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3291 zfs_recover = (dump_opt['A'] > 1);
3292
3293 argc -= optind;
3294 argv += optind;
3295
3296 if (argc < 2 && dump_opt['R'])
3297 usage();
3298 if (argc < 1) {
3299 if (!dump_opt['e'] && dump_opt['C']) {
3300 dump_cachefile(spa_config_path);
3301 return (0);
3302 }
3303 usage();
3304 }
3305
3306 if (dump_opt['l']) {
3307 dump_label(argv[0]);
3308 return (0);
3309 }
3310
3311 if (dump_opt['X'] || dump_opt['F'])
3312 rewind = ZPOOL_DO_REWIND |
3313 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3314
3315 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3316 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3317 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3318 fatal("internal error: %s", strerror(ENOMEM));
3319
3320 error = 0;
3321 target = argv[0];
3322
3323 if (dump_opt['e']) {
3324 nvlist_t *cfg = NULL;
3325 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3326
3327 error = ENOENT;
3328 if (name) {
3329 if (dump_opt['C'] > 1) {
3330 (void) printf("\nConfiguration for import:\n");
3331 dump_nvlist(cfg, 8);
3332 }
3333 if (nvlist_add_nvlist(cfg,
3334 ZPOOL_REWIND_POLICY, policy) != 0) {
3335 fatal("can't open '%s': %s",
3336 target, strerror(ENOMEM));
3337 }
3338 if ((error = spa_import(name, cfg, NULL,
3339 ZFS_IMPORT_MISSING_LOG)) != 0) {
3340 error = spa_import(name, cfg, NULL,
3341 ZFS_IMPORT_VERBATIM);
3342 }
3343 }
3344 }
3345
3346 if (error == 0) {
3347 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3348 error = spa_open_rewind(target, &spa, FTAG, policy,
3349 NULL);
3350 if (error) {
3351 /*
3352 * If we're missing the log device then
3353 * try opening the pool after clearing the
3354 * log state.
3355 */
3356 mutex_enter(&spa_namespace_lock);
3357 if ((spa = spa_lookup(target)) != NULL &&
3358 spa->spa_log_state == SPA_LOG_MISSING) {
3359 spa->spa_log_state = SPA_LOG_CLEAR;
3360 error = 0;
3361 }
3362 mutex_exit(&spa_namespace_lock);
3363
3364 if (!error) {
3365 error = spa_open_rewind(target, &spa,
3366 FTAG, policy, NULL);
3367 }
3368 }
3369 } else {
3370 error = dmu_objset_own(target, DMU_OST_ANY,
3371 B_TRUE, FTAG, &os);
3372 }
3373 }
3374 nvlist_free(policy);
3375
3376 if (error)
3377 fatal("can't open '%s': %s", target, strerror(error));
3378
3379 argv++;
3380 argc--;
3381 if (!dump_opt['R']) {
3382 if (argc > 0) {
3383 zopt_objects = argc;
3384 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3385 for (i = 0; i < zopt_objects; i++) {
3386 errno = 0;
3387 zopt_object[i] = strtoull(argv[i], NULL, 0);
3388 if (zopt_object[i] == 0 && errno != 0)
3389 fatal("bad number %s: %s",
3390 argv[i], strerror(errno));
3391 }
3392 }
3393 if (os != NULL) {
3394 dump_dir(os);
3395 } else if (zopt_objects > 0 && !dump_opt['m']) {
3396 dump_dir(spa->spa_meta_objset);
3397 } else {
3398 dump_zpool(spa);
3399 }
3400 } else {
3401 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3402 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3403 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3404 flagbits['e'] = ZDB_FLAG_BSWAP;
3405 flagbits['g'] = ZDB_FLAG_GBH;
3406 flagbits['i'] = ZDB_FLAG_INDIRECT;
3407 flagbits['p'] = ZDB_FLAG_PHYS;
3408 flagbits['r'] = ZDB_FLAG_RAW;
3409
3410 for (i = 0; i < argc; i++)
3411 zdb_read_block(argv[i], spa);
3412 }
3413
3414 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3415
3416 fuid_table_destroy();
3417 sa_loaded = B_FALSE;
3418
3419 libzfs_fini(g_zfs);
3420 kernel_fini();
3421
3422 return (0);
3423 }