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8322 nl: misleading-indentation
[unleashed/tickless.git] / usr / src / cmd / zdb / zdb.c
blob75f1d6a8155d8f90923a0ab1668636a0aa1782df
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) 2011, 2016 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2017 Nexenta Systems, Inc.
27 */
28
29 #include <stdio.h>
30 #include <unistd.h>
31 #include <stdio_ext.h>
32 #include <stdlib.h>
33 #include <ctype.h>
34 #include <sys/zfs_context.h>
35 #include <sys/spa.h>
36 #include <sys/spa_impl.h>
37 #include <sys/dmu.h>
38 #include <sys/zap.h>
39 #include <sys/fs/zfs.h>
40 #include <sys/zfs_znode.h>
41 #include <sys/zfs_sa.h>
42 #include <sys/sa.h>
43 #include <sys/sa_impl.h>
44 #include <sys/vdev.h>
45 #include <sys/vdev_impl.h>
46 #include <sys/metaslab_impl.h>
47 #include <sys/dmu_objset.h>
48 #include <sys/dsl_dir.h>
49 #include <sys/dsl_dataset.h>
50 #include <sys/dsl_pool.h>
51 #include <sys/dbuf.h>
52 #include <sys/zil.h>
53 #include <sys/zil_impl.h>
54 #include <sys/stat.h>
55 #include <sys/resource.h>
56 #include <sys/dmu_traverse.h>
57 #include <sys/zio_checksum.h>
58 #include <sys/zio_compress.h>
59 #include <sys/zfs_fuid.h>
60 #include <sys/arc.h>
61 #include <sys/ddt.h>
62 #include <sys/zfeature.h>
63 #include <sys/abd.h>
64 #include <zfs_comutil.h>
65 #undef verify
66 #include <libzfs.h>
67
68 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
69 zio_compress_table[(idx)].ci_name : "UNKNOWN")
70 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
71 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
72 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
73 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
74 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
75 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
76 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
77 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
78
79 #ifndef lint
80 extern int reference_tracking_enable;
81 extern boolean_t zfs_recover;
82 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
83 extern int zfs_vdev_async_read_max_active;
84 #else
85 int reference_tracking_enable;
86 boolean_t zfs_recover;
87 uint64_t zfs_arc_max, zfs_arc_meta_limit;
88 int zfs_vdev_async_read_max_active;
89 #endif
90
91 const char cmdname[] = "zdb";
92 uint8_t dump_opt[256];
93
94 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
95
96 extern void dump_intent_log(zilog_t *);
97 uint64_t *zopt_object = NULL;
98 int zopt_objects = 0;
99 libzfs_handle_t *g_zfs;
100 uint64_t max_inflight = 1000;
101
102 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
103
104 /*
105 * These libumem hooks provide a reasonable set of defaults for the allocator's
106 * debugging facilities.
107 */
108 const char *
109 _umem_debug_init()
110 {
111 return ("default,verbose"); /* $UMEM_DEBUG setting */
112 }
113
114 const char *
115 _umem_logging_init(void)
116 {
117 return ("fail,contents"); /* $UMEM_LOGGING setting */
118 }
119
120 static void
121 usage(void)
122 {
123 (void) fprintf(stderr,
124 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] "
125 "[-I <inflight I/Os>]\n"
126 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
127 "\t\t[<poolname> [<object> ...]]\n"
128 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> "
129 "[<object> ...]\n"
130 "\t%s -C [-A] [-U <cache>]\n"
131 "\t%s -l [-Aqu] <device>\n"
132 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
133 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
134 "\t%s -O <dataset> <path>\n"
135 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
136 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
137 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
138 "<poolname>\n\n",
139 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
140 cmdname);
141
142 (void) fprintf(stderr, " Dataset name must include at least one "
143 "separator character '/' or '@'\n");
144 (void) fprintf(stderr, " If dataset name is specified, only that "
145 "dataset is dumped\n");
146 (void) fprintf(stderr, " If object numbers are specified, only "
147 "those objects are dumped\n\n");
148 (void) fprintf(stderr, " Options to control amount of output:\n");
149 (void) fprintf(stderr, " -b block statistics\n");
150 (void) fprintf(stderr, " -c checksum all metadata (twice for "
151 "all data) blocks\n");
152 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
153 (void) fprintf(stderr, " -d dataset(s)\n");
154 (void) fprintf(stderr, " -D dedup statistics\n");
155 (void) fprintf(stderr, " -h pool history\n");
156 (void) fprintf(stderr, " -i intent logs\n");
157 (void) fprintf(stderr, " -l read label contents\n");
158 (void) fprintf(stderr, " -L disable leak tracking (do not "
159 "load spacemaps)\n");
160 (void) fprintf(stderr, " -m metaslabs\n");
161 (void) fprintf(stderr, " -M metaslab groups\n");
162 (void) fprintf(stderr, " -O perform object lookups by path\n");
163 (void) fprintf(stderr, " -R read and display block from a "
164 "device\n");
165 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
166 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
167 (void) fprintf(stderr, " -v verbose (applies to all "
168 "others)\n\n");
169 (void) fprintf(stderr, " Below options are intended for use "
170 "with other options:\n");
171 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
172 "panic recovery (-AA) or both (-AAA)\n");
173 (void) fprintf(stderr, " -e pool is exported/destroyed/"
174 "has altroot/not in a cachefile\n");
175 (void) fprintf(stderr, " -F attempt automatic rewind within "
176 "safe range of transaction groups\n");
177 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
178 "exiting\n");
179 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
180 "specify the maximum number of "
181 "checksumming I/Os [default is 200]\n");
182 (void) fprintf(stderr, " -o <variable>=<value> set global "
183 "variable to an unsigned 32-bit integer value\n");
184 (void) fprintf(stderr, " -p <path> -- use one or more with "
185 "-e to specify path to vdev dir\n");
186 (void) fprintf(stderr, " -P print numbers in parseable form\n");
187 (void) fprintf(stderr, " -q don't print label contents\n");
188 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
189 "searching for uberblocks\n");
190 (void) fprintf(stderr, " -u uberblock\n");
191 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
192 "cachefile\n");
193 (void) fprintf(stderr, " -V do verbatim import\n");
194 (void) fprintf(stderr, " -x <dumpdir> -- "
195 "dump all read blocks into specified directory\n");
196 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
197 "work with dataset)\n\n");
198 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
199 "to make only that option verbose\n");
200 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
201 exit(1);
202 }
203
204 static void
205 dump_debug_buffer()
206 {
207 if (dump_opt['G']) {
208 (void) printf("\n");
209 zfs_dbgmsg_print("zdb");
210 }
211 }
212
213 /*
214 * Called for usage errors that are discovered after a call to spa_open(),
215 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
216 */
217
218 static void
219 fatal(const char *fmt, ...)
220 {
221 va_list ap;
222
223 va_start(ap, fmt);
224 (void) fprintf(stderr, "%s: ", cmdname);
225 (void) vfprintf(stderr, fmt, ap);
226 va_end(ap);
227 (void) fprintf(stderr, "\n");
228
229 dump_debug_buffer();
230
231 exit(1);
232 }
233
234 /* ARGSUSED */
235 static void
236 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
237 {
238 nvlist_t *nv;
239 size_t nvsize = *(uint64_t *)data;
240 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
241
242 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
243
244 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
245
246 umem_free(packed, nvsize);
247
248 dump_nvlist(nv, 8);
249
250 nvlist_free(nv);
251 }
252
253 /* ARGSUSED */
254 static void
255 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
256 {
257 spa_history_phys_t *shp = data;
258
259 if (shp == NULL)
260 return;
261
262 (void) printf("\t\tpool_create_len = %llu\n",
263 (u_longlong_t)shp->sh_pool_create_len);
264 (void) printf("\t\tphys_max_off = %llu\n",
265 (u_longlong_t)shp->sh_phys_max_off);
266 (void) printf("\t\tbof = %llu\n",
267 (u_longlong_t)shp->sh_bof);
268 (void) printf("\t\teof = %llu\n",
269 (u_longlong_t)shp->sh_eof);
270 (void) printf("\t\trecords_lost = %llu\n",
271 (u_longlong_t)shp->sh_records_lost);
272 }
273
274 static void
275 zdb_nicenum(uint64_t num, char *buf)
276 {
277 if (dump_opt['P'])
278 (void) sprintf(buf, "%llu", (longlong_t)num);
279 else
280 nicenum(num, buf);
281 }
282
283 const char histo_stars[] = "****************************************";
284 const int histo_width = sizeof (histo_stars) - 1;
285
286 static void
287 dump_histogram(const uint64_t *histo, int size, int offset)
288 {
289 int i;
290 int minidx = size - 1;
291 int maxidx = 0;
292 uint64_t max = 0;
293
294 for (i = 0; i < size; i++) {
295 if (histo[i] > max)
296 max = histo[i];
297 if (histo[i] > 0 && i > maxidx)
298 maxidx = i;
299 if (histo[i] > 0 && i < minidx)
300 minidx = i;
301 }
302
303 if (max < histo_width)
304 max = histo_width;
305
306 for (i = minidx; i <= maxidx; i++) {
307 (void) printf("\t\t\t%3u: %6llu %s\n",
308 i + offset, (u_longlong_t)histo[i],
309 &histo_stars[(max - histo[i]) * histo_width / max]);
310 }
311 }
312
313 static void
314 dump_zap_stats(objset_t *os, uint64_t object)
315 {
316 int error;
317 zap_stats_t zs;
318
319 error = zap_get_stats(os, object, &zs);
320 if (error)
321 return;
322
323 if (zs.zs_ptrtbl_len == 0) {
324 ASSERT(zs.zs_num_blocks == 1);
325 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
326 (u_longlong_t)zs.zs_blocksize,
327 (u_longlong_t)zs.zs_num_entries);
328 return;
329 }
330
331 (void) printf("\tFat ZAP stats:\n");
332
333 (void) printf("\t\tPointer table:\n");
334 (void) printf("\t\t\t%llu elements\n",
335 (u_longlong_t)zs.zs_ptrtbl_len);
336 (void) printf("\t\t\tzt_blk: %llu\n",
337 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
338 (void) printf("\t\t\tzt_numblks: %llu\n",
339 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
340 (void) printf("\t\t\tzt_shift: %llu\n",
341 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
342 (void) printf("\t\t\tzt_blks_copied: %llu\n",
343 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
344 (void) printf("\t\t\tzt_nextblk: %llu\n",
345 (u_longlong_t)zs.zs_ptrtbl_nextblk);
346
347 (void) printf("\t\tZAP entries: %llu\n",
348 (u_longlong_t)zs.zs_num_entries);
349 (void) printf("\t\tLeaf blocks: %llu\n",
350 (u_longlong_t)zs.zs_num_leafs);
351 (void) printf("\t\tTotal blocks: %llu\n",
352 (u_longlong_t)zs.zs_num_blocks);
353 (void) printf("\t\tzap_block_type: 0x%llx\n",
354 (u_longlong_t)zs.zs_block_type);
355 (void) printf("\t\tzap_magic: 0x%llx\n",
356 (u_longlong_t)zs.zs_magic);
357 (void) printf("\t\tzap_salt: 0x%llx\n",
358 (u_longlong_t)zs.zs_salt);
359
360 (void) printf("\t\tLeafs with 2^n pointers:\n");
361 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
362
363 (void) printf("\t\tBlocks with n*5 entries:\n");
364 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
365
366 (void) printf("\t\tBlocks n/10 full:\n");
367 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
368
369 (void) printf("\t\tEntries with n chunks:\n");
370 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
371
372 (void) printf("\t\tBuckets with n entries:\n");
373 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
374 }
375
376 /*ARGSUSED*/
377 static void
378 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
379 {
380 }
381
382 /*ARGSUSED*/
383 static void
384 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
385 {
386 (void) printf("\tUNKNOWN OBJECT TYPE\n");
387 }
388
389 /*ARGSUSED*/
390 void
391 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
392 {
393 }
394
395 /*ARGSUSED*/
396 static void
397 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
398 {
399 }
400
401 /*ARGSUSED*/
402 static void
403 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
404 {
405 zap_cursor_t zc;
406 zap_attribute_t attr;
407 void *prop;
408 int i;
409
410 dump_zap_stats(os, object);
411 (void) printf("\n");
412
413 for (zap_cursor_init(&zc, os, object);
414 zap_cursor_retrieve(&zc, &attr) == 0;
415 zap_cursor_advance(&zc)) {
416 (void) printf("\t\t%s = ", attr.za_name);
417 if (attr.za_num_integers == 0) {
418 (void) printf("\n");
419 continue;
420 }
421 prop = umem_zalloc(attr.za_num_integers *
422 attr.za_integer_length, UMEM_NOFAIL);
423 (void) zap_lookup(os, object, attr.za_name,
424 attr.za_integer_length, attr.za_num_integers, prop);
425 if (attr.za_integer_length == 1) {
426 (void) printf("%s", (char *)prop);
427 } else {
428 for (i = 0; i < attr.za_num_integers; i++) {
429 switch (attr.za_integer_length) {
430 case 2:
431 (void) printf("%u ",
432 ((uint16_t *)prop)[i]);
433 break;
434 case 4:
435 (void) printf("%u ",
436 ((uint32_t *)prop)[i]);
437 break;
438 case 8:
439 (void) printf("%lld ",
440 (u_longlong_t)((int64_t *)prop)[i]);
441 break;
442 }
443 }
444 }
445 (void) printf("\n");
446 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
447 }
448 zap_cursor_fini(&zc);
449 }
450
451 static void
452 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
453 {
454 bpobj_phys_t *bpop = data;
455 char bytes[32], comp[32], uncomp[32];
456
457 if (bpop == NULL)
458 return;
459
460 zdb_nicenum(bpop->bpo_bytes, bytes);
461 zdb_nicenum(bpop->bpo_comp, comp);
462 zdb_nicenum(bpop->bpo_uncomp, uncomp);
463
464 (void) printf("\t\tnum_blkptrs = %llu\n",
465 (u_longlong_t)bpop->bpo_num_blkptrs);
466 (void) printf("\t\tbytes = %s\n", bytes);
467 if (size >= BPOBJ_SIZE_V1) {
468 (void) printf("\t\tcomp = %s\n", comp);
469 (void) printf("\t\tuncomp = %s\n", uncomp);
470 }
471 if (size >= sizeof (*bpop)) {
472 (void) printf("\t\tsubobjs = %llu\n",
473 (u_longlong_t)bpop->bpo_subobjs);
474 (void) printf("\t\tnum_subobjs = %llu\n",
475 (u_longlong_t)bpop->bpo_num_subobjs);
476 }
477
478 if (dump_opt['d'] < 5)
479 return;
480
481 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
482 char blkbuf[BP_SPRINTF_LEN];
483 blkptr_t bp;
484
485 int err = dmu_read(os, object,
486 i * sizeof (bp), sizeof (bp), &bp, 0);
487 if (err != 0) {
488 (void) printf("got error %u from dmu_read\n", err);
489 break;
490 }
491 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
492 (void) printf("\t%s\n", blkbuf);
493 }
494 }
495
496 /* ARGSUSED */
497 static void
498 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
499 {
500 dmu_object_info_t doi;
501
502 VERIFY0(dmu_object_info(os, object, &doi));
503 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
504
505 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
506 if (err != 0) {
507 (void) printf("got error %u from dmu_read\n", err);
508 kmem_free(subobjs, doi.doi_max_offset);
509 return;
510 }
511
512 int64_t last_nonzero = -1;
513 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
514 if (subobjs[i] != 0)
515 last_nonzero = i;
516 }
517
518 for (int64_t i = 0; i <= last_nonzero; i++) {
519 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
520 }
521 kmem_free(subobjs, doi.doi_max_offset);
522 }
523
524 /*ARGSUSED*/
525 static void
526 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
527 {
528 dump_zap_stats(os, object);
529 /* contents are printed elsewhere, properly decoded */
530 }
531
532 /*ARGSUSED*/
533 static void
534 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
535 {
536 zap_cursor_t zc;
537 zap_attribute_t attr;
538
539 dump_zap_stats(os, object);
540 (void) printf("\n");
541
542 for (zap_cursor_init(&zc, os, object);
543 zap_cursor_retrieve(&zc, &attr) == 0;
544 zap_cursor_advance(&zc)) {
545 (void) printf("\t\t%s = ", attr.za_name);
546 if (attr.za_num_integers == 0) {
547 (void) printf("\n");
548 continue;
549 }
550 (void) printf(" %llx : [%d:%d:%d]\n",
551 (u_longlong_t)attr.za_first_integer,
552 (int)ATTR_LENGTH(attr.za_first_integer),
553 (int)ATTR_BSWAP(attr.za_first_integer),
554 (int)ATTR_NUM(attr.za_first_integer));
555 }
556 zap_cursor_fini(&zc);
557 }
558
559 /*ARGSUSED*/
560 static void
561 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
562 {
563 zap_cursor_t zc;
564 zap_attribute_t attr;
565 uint16_t *layout_attrs;
566 int i;
567
568 dump_zap_stats(os, object);
569 (void) printf("\n");
570
571 for (zap_cursor_init(&zc, os, object);
572 zap_cursor_retrieve(&zc, &attr) == 0;
573 zap_cursor_advance(&zc)) {
574 (void) printf("\t\t%s = [", attr.za_name);
575 if (attr.za_num_integers == 0) {
576 (void) printf("\n");
577 continue;
578 }
579
580 VERIFY(attr.za_integer_length == 2);
581 layout_attrs = umem_zalloc(attr.za_num_integers *
582 attr.za_integer_length, UMEM_NOFAIL);
583
584 VERIFY(zap_lookup(os, object, attr.za_name,
585 attr.za_integer_length,
586 attr.za_num_integers, layout_attrs) == 0);
587
588 for (i = 0; i != attr.za_num_integers; i++)
589 (void) printf(" %d ", (int)layout_attrs[i]);
590 (void) printf("]\n");
591 umem_free(layout_attrs,
592 attr.za_num_integers * attr.za_integer_length);
593 }
594 zap_cursor_fini(&zc);
595 }
596
597 /*ARGSUSED*/
598 static void
599 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
600 {
601 zap_cursor_t zc;
602 zap_attribute_t attr;
603 const char *typenames[] = {
604 /* 0 */ "not specified",
605 /* 1 */ "FIFO",
606 /* 2 */ "Character Device",
607 /* 3 */ "3 (invalid)",
608 /* 4 */ "Directory",
609 /* 5 */ "5 (invalid)",
610 /* 6 */ "Block Device",
611 /* 7 */ "7 (invalid)",
612 /* 8 */ "Regular File",
613 /* 9 */ "9 (invalid)",
614 /* 10 */ "Symbolic Link",
615 /* 11 */ "11 (invalid)",
616 /* 12 */ "Socket",
617 /* 13 */ "Door",
618 /* 14 */ "Event Port",
619 /* 15 */ "15 (invalid)",
620 };
621
622 dump_zap_stats(os, object);
623 (void) printf("\n");
624
625 for (zap_cursor_init(&zc, os, object);
626 zap_cursor_retrieve(&zc, &attr) == 0;
627 zap_cursor_advance(&zc)) {
628 (void) printf("\t\t%s = %lld (type: %s)\n",
629 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
630 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
631 }
632 zap_cursor_fini(&zc);
633 }
634
635 int
636 get_dtl_refcount(vdev_t *vd)
637 {
638 int refcount = 0;
639
640 if (vd->vdev_ops->vdev_op_leaf) {
641 space_map_t *sm = vd->vdev_dtl_sm;
642
643 if (sm != NULL &&
644 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
645 return (1);
646 return (0);
647 }
648
649 for (int c = 0; c < vd->vdev_children; c++)
650 refcount += get_dtl_refcount(vd->vdev_child[c]);
651 return (refcount);
652 }
653
654 int
655 get_metaslab_refcount(vdev_t *vd)
656 {
657 int refcount = 0;
658
659 if (vd->vdev_top == vd && !vd->vdev_removing) {
660 for (int m = 0; m < vd->vdev_ms_count; m++) {
661 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
662
663 if (sm != NULL &&
664 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
665 refcount++;
666 }
667 }
668 for (int c = 0; c < vd->vdev_children; c++)
669 refcount += get_metaslab_refcount(vd->vdev_child[c]);
670
671 return (refcount);
672 }
673
674 static int
675 verify_spacemap_refcounts(spa_t *spa)
676 {
677 uint64_t expected_refcount = 0;
678 uint64_t actual_refcount;
679
680 (void) feature_get_refcount(spa,
681 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
682 &expected_refcount);
683 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
684 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
685
686 if (expected_refcount != actual_refcount) {
687 (void) printf("space map refcount mismatch: expected %lld != "
688 "actual %lld\n",
689 (longlong_t)expected_refcount,
690 (longlong_t)actual_refcount);
691 return (2);
692 }
693 return (0);
694 }
695
696 static void
697 dump_spacemap(objset_t *os, space_map_t *sm)
698 {
699 uint64_t alloc, offset, entry;
700 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
701 "INVALID", "INVALID", "INVALID", "INVALID" };
702
703 if (sm == NULL)
704 return;
705
706 /*
707 * Print out the freelist entries in both encoded and decoded form.
708 */
709 alloc = 0;
710 for (offset = 0; offset < space_map_length(sm);
711 offset += sizeof (entry)) {
712 uint8_t mapshift = sm->sm_shift;
713
714 VERIFY0(dmu_read(os, space_map_object(sm), offset,
715 sizeof (entry), &entry, DMU_READ_PREFETCH));
716 if (SM_DEBUG_DECODE(entry)) {
717
718 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
719 (u_longlong_t)(offset / sizeof (entry)),
720 ddata[SM_DEBUG_ACTION_DECODE(entry)],
721 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
722 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
723 } else {
724 (void) printf("\t [%6llu] %c range:"
725 " %010llx-%010llx size: %06llx\n",
726 (u_longlong_t)(offset / sizeof (entry)),
727 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
728 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
729 mapshift) + sm->sm_start),
730 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
731 mapshift) + sm->sm_start +
732 (SM_RUN_DECODE(entry) << mapshift)),
733 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
734 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
735 alloc += SM_RUN_DECODE(entry) << mapshift;
736 else
737 alloc -= SM_RUN_DECODE(entry) << mapshift;
738 }
739 }
740 if (alloc != space_map_allocated(sm)) {
741 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
742 "with space map summary (%llu)\n",
743 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
744 }
745 }
746
747 static void
748 dump_metaslab_stats(metaslab_t *msp)
749 {
750 char maxbuf[32];
751 range_tree_t *rt = msp->ms_tree;
752 avl_tree_t *t = &msp->ms_size_tree;
753 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
754
755 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
756
757 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
758 "segments", avl_numnodes(t), "maxsize", maxbuf,
759 "freepct", free_pct);
760 (void) printf("\tIn-memory histogram:\n");
761 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
762 }
763
764 static void
765 dump_metaslab(metaslab_t *msp)
766 {
767 vdev_t *vd = msp->ms_group->mg_vd;
768 spa_t *spa = vd->vdev_spa;
769 space_map_t *sm = msp->ms_sm;
770 char freebuf[32];
771
772 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
773
774 (void) printf(
775 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
776 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
777 (u_longlong_t)space_map_object(sm), freebuf);
778
779 if (dump_opt['m'] > 2 && !dump_opt['L']) {
780 mutex_enter(&msp->ms_lock);
781 metaslab_load_wait(msp);
782 if (!msp->ms_loaded) {
783 VERIFY0(metaslab_load(msp));
784 range_tree_stat_verify(msp->ms_tree);
785 }
786 dump_metaslab_stats(msp);
787 metaslab_unload(msp);
788 mutex_exit(&msp->ms_lock);
789 }
790
791 if (dump_opt['m'] > 1 && sm != NULL &&
792 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
793 /*
794 * The space map histogram represents free space in chunks
795 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
796 */
797 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
798 (u_longlong_t)msp->ms_fragmentation);
799 dump_histogram(sm->sm_phys->smp_histogram,
800 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
801 }
802
803 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
804 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
805
806 mutex_enter(&msp->ms_lock);
807 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
808 mutex_exit(&msp->ms_lock);
809 }
810 }
811
812 static void
813 print_vdev_metaslab_header(vdev_t *vd)
814 {
815 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
816 (u_longlong_t)vd->vdev_id,
817 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
818 "offset", "spacemap", "free");
819 (void) printf("\t%15s %19s %15s %10s\n",
820 "---------------", "-------------------",
821 "---------------", "-------------");
822 }
823
824 static void
825 dump_metaslab_groups(spa_t *spa)
826 {
827 vdev_t *rvd = spa->spa_root_vdev;
828 metaslab_class_t *mc = spa_normal_class(spa);
829 uint64_t fragmentation;
830
831 metaslab_class_histogram_verify(mc);
832
833 for (int c = 0; c < rvd->vdev_children; c++) {
834 vdev_t *tvd = rvd->vdev_child[c];
835 metaslab_group_t *mg = tvd->vdev_mg;
836
837 if (mg->mg_class != mc)
838 continue;
839
840 metaslab_group_histogram_verify(mg);
841 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
842
843 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
844 "fragmentation",
845 (u_longlong_t)tvd->vdev_id,
846 (u_longlong_t)tvd->vdev_ms_count);
847 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
848 (void) printf("%3s\n", "-");
849 } else {
850 (void) printf("%3llu%%\n",
851 (u_longlong_t)mg->mg_fragmentation);
852 }
853 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
854 }
855
856 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
857 fragmentation = metaslab_class_fragmentation(mc);
858 if (fragmentation == ZFS_FRAG_INVALID)
859 (void) printf("\t%3s\n", "-");
860 else
861 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
862 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
863 }
864
865 static void
866 dump_metaslabs(spa_t *spa)
867 {
868 vdev_t *vd, *rvd = spa->spa_root_vdev;
869 uint64_t m, c = 0, children = rvd->vdev_children;
870
871 (void) printf("\nMetaslabs:\n");
872
873 if (!dump_opt['d'] && zopt_objects > 0) {
874 c = zopt_object[0];
875
876 if (c >= children)
877 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
878
879 if (zopt_objects > 1) {
880 vd = rvd->vdev_child[c];
881 print_vdev_metaslab_header(vd);
882
883 for (m = 1; m < zopt_objects; m++) {
884 if (zopt_object[m] < vd->vdev_ms_count)
885 dump_metaslab(
886 vd->vdev_ms[zopt_object[m]]);
887 else
888 (void) fprintf(stderr, "bad metaslab "
889 "number %llu\n",
890 (u_longlong_t)zopt_object[m]);
891 }
892 (void) printf("\n");
893 return;
894 }
895 children = c + 1;
896 }
897 for (; c < children; c++) {
898 vd = rvd->vdev_child[c];
899 print_vdev_metaslab_header(vd);
900
901 for (m = 0; m < vd->vdev_ms_count; m++)
902 dump_metaslab(vd->vdev_ms[m]);
903 (void) printf("\n");
904 }
905 }
906
907 static void
908 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
909 {
910 const ddt_phys_t *ddp = dde->dde_phys;
911 const ddt_key_t *ddk = &dde->dde_key;
912 char *types[4] = { "ditto", "single", "double", "triple" };
913 char blkbuf[BP_SPRINTF_LEN];
914 blkptr_t blk;
915
916 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
917 if (ddp->ddp_phys_birth == 0)
918 continue;
919 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
920 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
921 (void) printf("index %llx refcnt %llu %s %s\n",
922 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
923 types[p], blkbuf);
924 }
925 }
926
927 static void
928 dump_dedup_ratio(const ddt_stat_t *dds)
929 {
930 double rL, rP, rD, D, dedup, compress, copies;
931
932 if (dds->dds_blocks == 0)
933 return;
934
935 rL = (double)dds->dds_ref_lsize;
936 rP = (double)dds->dds_ref_psize;
937 rD = (double)dds->dds_ref_dsize;
938 D = (double)dds->dds_dsize;
939
940 dedup = rD / D;
941 compress = rL / rP;
942 copies = rD / rP;
943
944 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
945 "dedup * compress / copies = %.2f\n\n",
946 dedup, compress, copies, dedup * compress / copies);
947 }
948
949 static void
950 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
951 {
952 char name[DDT_NAMELEN];
953 ddt_entry_t dde;
954 uint64_t walk = 0;
955 dmu_object_info_t doi;
956 uint64_t count, dspace, mspace;
957 int error;
958
959 error = ddt_object_info(ddt, type, class, &doi);
960
961 if (error == ENOENT)
962 return;
963 ASSERT(error == 0);
964
965 if ((count = ddt_object_count(ddt, type, class)) == 0)
966 return;
967
968 dspace = doi.doi_physical_blocks_512 << 9;
969 mspace = doi.doi_fill_count * doi.doi_data_block_size;
970
971 ddt_object_name(ddt, type, class, name);
972
973 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
974 name,
975 (u_longlong_t)count,
976 (u_longlong_t)(dspace / count),
977 (u_longlong_t)(mspace / count));
978
979 if (dump_opt['D'] < 3)
980 return;
981
982 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
983
984 if (dump_opt['D'] < 4)
985 return;
986
987 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
988 return;
989
990 (void) printf("%s contents:\n\n", name);
991
992 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
993 dump_dde(ddt, &dde, walk);
994
995 ASSERT(error == ENOENT);
996
997 (void) printf("\n");
998 }
999
1000 static void
1001 dump_all_ddts(spa_t *spa)
1002 {
1003 ddt_histogram_t ddh_total = { 0 };
1004 ddt_stat_t dds_total = { 0 };
1005
1006 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1007 ddt_t *ddt = spa->spa_ddt[c];
1008 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1009 for (enum ddt_class class = 0; class < DDT_CLASSES;
1010 class++) {
1011 dump_ddt(ddt, type, class);
1012 }
1013 }
1014 }
1015
1016 ddt_get_dedup_stats(spa, &dds_total);
1017
1018 if (dds_total.dds_blocks == 0) {
1019 (void) printf("All DDTs are empty\n");
1020 return;
1021 }
1022
1023 (void) printf("\n");
1024
1025 if (dump_opt['D'] > 1) {
1026 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1027 ddt_get_dedup_histogram(spa, &ddh_total);
1028 zpool_dump_ddt(&dds_total, &ddh_total);
1029 }
1030
1031 dump_dedup_ratio(&dds_total);
1032 }
1033
1034 static void
1035 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1036 {
1037 char *prefix = arg;
1038
1039 (void) printf("%s [%llu,%llu) length %llu\n",
1040 prefix,
1041 (u_longlong_t)start,
1042 (u_longlong_t)(start + size),
1043 (u_longlong_t)(size));
1044 }
1045
1046 static void
1047 dump_dtl(vdev_t *vd, int indent)
1048 {
1049 spa_t *spa = vd->vdev_spa;
1050 boolean_t required;
1051 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
1052 char prefix[256];
1053
1054 spa_vdev_state_enter(spa, SCL_NONE);
1055 required = vdev_dtl_required(vd);
1056 (void) spa_vdev_state_exit(spa, NULL, 0);
1057
1058 if (indent == 0)
1059 (void) printf("\nDirty time logs:\n\n");
1060
1061 (void) printf("\t%*s%s [%s]\n", indent, "",
1062 vd->vdev_path ? vd->vdev_path :
1063 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1064 required ? "DTL-required" : "DTL-expendable");
1065
1066 for (int t = 0; t < DTL_TYPES; t++) {
1067 range_tree_t *rt = vd->vdev_dtl[t];
1068 if (range_tree_space(rt) == 0)
1069 continue;
1070 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1071 indent + 2, "", name[t]);
1072 mutex_enter(rt->rt_lock);
1073 range_tree_walk(rt, dump_dtl_seg, prefix);
1074 mutex_exit(rt->rt_lock);
1075 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1076 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1077 }
1078
1079 for (int c = 0; c < vd->vdev_children; c++)
1080 dump_dtl(vd->vdev_child[c], indent + 4);
1081 }
1082
1083 static void
1084 dump_history(spa_t *spa)
1085 {
1086 nvlist_t **events = NULL;
1087 uint64_t resid, len, off = 0;
1088 uint_t num = 0;
1089 int error;
1090 time_t tsec;
1091 struct tm t;
1092 char tbuf[30];
1093 char internalstr[MAXPATHLEN];
1094
1095 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
1096 do {
1097 len = SPA_MAXBLOCKSIZE;
1098
1099 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1100 (void) fprintf(stderr, "Unable to read history: "
1101 "error %d\n", error);
1102 umem_free(buf, SPA_MAXBLOCKSIZE);
1103 return;
1104 }
1105
1106 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1107 break;
1108
1109 off -= resid;
1110 } while (len != 0);
1111 umem_free(buf, SPA_MAXBLOCKSIZE);
1112
1113 (void) printf("\nHistory:\n");
1114 for (int i = 0; i < num; i++) {
1115 uint64_t time, txg, ievent;
1116 char *cmd, *intstr;
1117 boolean_t printed = B_FALSE;
1118
1119 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1120 &time) != 0)
1121 goto next;
1122 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1123 &cmd) != 0) {
1124 if (nvlist_lookup_uint64(events[i],
1125 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1126 goto next;
1127 verify(nvlist_lookup_uint64(events[i],
1128 ZPOOL_HIST_TXG, &txg) == 0);
1129 verify(nvlist_lookup_string(events[i],
1130 ZPOOL_HIST_INT_STR, &intstr) == 0);
1131 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1132 goto next;
1133
1134 (void) snprintf(internalstr,
1135 sizeof (internalstr),
1136 "[internal %s txg:%lld] %s",
1137 zfs_history_event_names[ievent], txg,
1138 intstr);
1139 cmd = internalstr;
1140 }
1141 tsec = time;
1142 (void) localtime_r(&tsec, &t);
1143 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1144 (void) printf("%s %s\n", tbuf, cmd);
1145 printed = B_TRUE;
1146
1147 next:
1148 if (dump_opt['h'] > 1) {
1149 if (!printed)
1150 (void) printf("unrecognized record:\n");
1151 dump_nvlist(events[i], 2);
1152 }
1153 }
1154 }
1155
1156 /*ARGSUSED*/
1157 static void
1158 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1159 {
1160 }
1161
1162 static uint64_t
1163 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1164 const zbookmark_phys_t *zb)
1165 {
1166 if (dnp == NULL) {
1167 ASSERT(zb->zb_level < 0);
1168 if (zb->zb_object == 0)
1169 return (zb->zb_blkid);
1170 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1171 }
1172
1173 ASSERT(zb->zb_level >= 0);
1174
1175 return ((zb->zb_blkid <<
1176 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1177 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1178 }
1179
1180 static void
1181 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1182 {
1183 const dva_t *dva = bp->blk_dva;
1184 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1185
1186 if (dump_opt['b'] >= 6) {
1187 snprintf_blkptr(blkbuf, buflen, bp);
1188 return;
1189 }
1190
1191 if (BP_IS_EMBEDDED(bp)) {
1192 (void) sprintf(blkbuf,
1193 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1194 (int)BPE_GET_ETYPE(bp),
1195 (u_longlong_t)BPE_GET_LSIZE(bp),
1196 (u_longlong_t)BPE_GET_PSIZE(bp),
1197 (u_longlong_t)bp->blk_birth);
1198 return;
1199 }
1200
1201 blkbuf[0] = '\0';
1202 for (int i = 0; i < ndvas; i++)
1203 (void) snprintf(blkbuf + strlen(blkbuf),
1204 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1205 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1206 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1207 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1208
1209 if (BP_IS_HOLE(bp)) {
1210 (void) snprintf(blkbuf + strlen(blkbuf),
1211 buflen - strlen(blkbuf),
1212 "%llxL B=%llu",
1213 (u_longlong_t)BP_GET_LSIZE(bp),
1214 (u_longlong_t)bp->blk_birth);
1215 } else {
1216 (void) snprintf(blkbuf + strlen(blkbuf),
1217 buflen - strlen(blkbuf),
1218 "%llxL/%llxP F=%llu B=%llu/%llu",
1219 (u_longlong_t)BP_GET_LSIZE(bp),
1220 (u_longlong_t)BP_GET_PSIZE(bp),
1221 (u_longlong_t)BP_GET_FILL(bp),
1222 (u_longlong_t)bp->blk_birth,
1223 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1224 }
1225 }
1226
1227 static void
1228 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1229 const dnode_phys_t *dnp)
1230 {
1231 char blkbuf[BP_SPRINTF_LEN];
1232 int l;
1233
1234 if (!BP_IS_EMBEDDED(bp)) {
1235 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1236 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1237 }
1238
1239 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1240
1241 ASSERT(zb->zb_level >= 0);
1242
1243 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1244 if (l == zb->zb_level) {
1245 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1246 } else {
1247 (void) printf(" ");
1248 }
1249 }
1250
1251 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1252 (void) printf("%s\n", blkbuf);
1253 }
1254
1255 static int
1256 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1257 blkptr_t *bp, const zbookmark_phys_t *zb)
1258 {
1259 int err = 0;
1260
1261 if (bp->blk_birth == 0)
1262 return (0);
1263
1264 print_indirect(bp, zb, dnp);
1265
1266 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1267 arc_flags_t flags = ARC_FLAG_WAIT;
1268 int i;
1269 blkptr_t *cbp;
1270 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1271 arc_buf_t *buf;
1272 uint64_t fill = 0;
1273
1274 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1275 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1276 if (err)
1277 return (err);
1278 ASSERT(buf->b_data);
1279
1280 /* recursively visit blocks below this */
1281 cbp = buf->b_data;
1282 for (i = 0; i < epb; i++, cbp++) {
1283 zbookmark_phys_t czb;
1284
1285 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1286 zb->zb_level - 1,
1287 zb->zb_blkid * epb + i);
1288 err = visit_indirect(spa, dnp, cbp, &czb);
1289 if (err)
1290 break;
1291 fill += BP_GET_FILL(cbp);
1292 }
1293 if (!err)
1294 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1295 arc_buf_destroy(buf, &buf);
1296 }
1297
1298 return (err);
1299 }
1300
1301 /*ARGSUSED*/
1302 static void
1303 dump_indirect(dnode_t *dn)
1304 {
1305 dnode_phys_t *dnp = dn->dn_phys;
1306 int j;
1307 zbookmark_phys_t czb;
1308
1309 (void) printf("Indirect blocks:\n");
1310
1311 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1312 dn->dn_object, dnp->dn_nlevels - 1, 0);
1313 for (j = 0; j < dnp->dn_nblkptr; j++) {
1314 czb.zb_blkid = j;
1315 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1316 &dnp->dn_blkptr[j], &czb);
1317 }
1318
1319 (void) printf("\n");
1320 }
1321
1322 /*ARGSUSED*/
1323 static void
1324 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1325 {
1326 dsl_dir_phys_t *dd = data;
1327 time_t crtime;
1328 char nice[32];
1329
1330 if (dd == NULL)
1331 return;
1332
1333 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1334
1335 crtime = dd->dd_creation_time;
1336 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1337 (void) printf("\t\thead_dataset_obj = %llu\n",
1338 (u_longlong_t)dd->dd_head_dataset_obj);
1339 (void) printf("\t\tparent_dir_obj = %llu\n",
1340 (u_longlong_t)dd->dd_parent_obj);
1341 (void) printf("\t\torigin_obj = %llu\n",
1342 (u_longlong_t)dd->dd_origin_obj);
1343 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1344 (u_longlong_t)dd->dd_child_dir_zapobj);
1345 zdb_nicenum(dd->dd_used_bytes, nice);
1346 (void) printf("\t\tused_bytes = %s\n", nice);
1347 zdb_nicenum(dd->dd_compressed_bytes, nice);
1348 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1349 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1350 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1351 zdb_nicenum(dd->dd_quota, nice);
1352 (void) printf("\t\tquota = %s\n", nice);
1353 zdb_nicenum(dd->dd_reserved, nice);
1354 (void) printf("\t\treserved = %s\n", nice);
1355 (void) printf("\t\tprops_zapobj = %llu\n",
1356 (u_longlong_t)dd->dd_props_zapobj);
1357 (void) printf("\t\tdeleg_zapobj = %llu\n",
1358 (u_longlong_t)dd->dd_deleg_zapobj);
1359 (void) printf("\t\tflags = %llx\n",
1360 (u_longlong_t)dd->dd_flags);
1361
1362 #define DO(which) \
1363 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1364 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1365 DO(HEAD);
1366 DO(SNAP);
1367 DO(CHILD);
1368 DO(CHILD_RSRV);
1369 DO(REFRSRV);
1370 #undef DO
1371 }
1372
1373 /*ARGSUSED*/
1374 static void
1375 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1376 {
1377 dsl_dataset_phys_t *ds = data;
1378 time_t crtime;
1379 char used[32], compressed[32], uncompressed[32], unique[32];
1380 char blkbuf[BP_SPRINTF_LEN];
1381
1382 if (ds == NULL)
1383 return;
1384
1385 ASSERT(size == sizeof (*ds));
1386 crtime = ds->ds_creation_time;
1387 zdb_nicenum(ds->ds_referenced_bytes, used);
1388 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1389 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1390 zdb_nicenum(ds->ds_unique_bytes, unique);
1391 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1392
1393 (void) printf("\t\tdir_obj = %llu\n",
1394 (u_longlong_t)ds->ds_dir_obj);
1395 (void) printf("\t\tprev_snap_obj = %llu\n",
1396 (u_longlong_t)ds->ds_prev_snap_obj);
1397 (void) printf("\t\tprev_snap_txg = %llu\n",
1398 (u_longlong_t)ds->ds_prev_snap_txg);
1399 (void) printf("\t\tnext_snap_obj = %llu\n",
1400 (u_longlong_t)ds->ds_next_snap_obj);
1401 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1402 (u_longlong_t)ds->ds_snapnames_zapobj);
1403 (void) printf("\t\tnum_children = %llu\n",
1404 (u_longlong_t)ds->ds_num_children);
1405 (void) printf("\t\tuserrefs_obj = %llu\n",
1406 (u_longlong_t)ds->ds_userrefs_obj);
1407 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1408 (void) printf("\t\tcreation_txg = %llu\n",
1409 (u_longlong_t)ds->ds_creation_txg);
1410 (void) printf("\t\tdeadlist_obj = %llu\n",
1411 (u_longlong_t)ds->ds_deadlist_obj);
1412 (void) printf("\t\tused_bytes = %s\n", used);
1413 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1414 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1415 (void) printf("\t\tunique = %s\n", unique);
1416 (void) printf("\t\tfsid_guid = %llu\n",
1417 (u_longlong_t)ds->ds_fsid_guid);
1418 (void) printf("\t\tguid = %llu\n",
1419 (u_longlong_t)ds->ds_guid);
1420 (void) printf("\t\tflags = %llx\n",
1421 (u_longlong_t)ds->ds_flags);
1422 (void) printf("\t\tnext_clones_obj = %llu\n",
1423 (u_longlong_t)ds->ds_next_clones_obj);
1424 (void) printf("\t\tprops_obj = %llu\n",
1425 (u_longlong_t)ds->ds_props_obj);
1426 (void) printf("\t\tbp = %s\n", blkbuf);
1427 }
1428
1429 /* ARGSUSED */
1430 static int
1431 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1432 {
1433 char blkbuf[BP_SPRINTF_LEN];
1434
1435 if (bp->blk_birth != 0) {
1436 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1437 (void) printf("\t%s\n", blkbuf);
1438 }
1439 return (0);
1440 }
1441
1442 static void
1443 dump_bptree(objset_t *os, uint64_t obj, char *name)
1444 {
1445 char bytes[32];
1446 bptree_phys_t *bt;
1447 dmu_buf_t *db;
1448
1449 if (dump_opt['d'] < 3)
1450 return;
1451
1452 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1453 bt = db->db_data;
1454 zdb_nicenum(bt->bt_bytes, bytes);
1455 (void) printf("\n %s: %llu datasets, %s\n",
1456 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1457 dmu_buf_rele(db, FTAG);
1458
1459 if (dump_opt['d'] < 5)
1460 return;
1461
1462 (void) printf("\n");
1463
1464 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1465 }
1466
1467 /* ARGSUSED */
1468 static int
1469 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1470 {
1471 char blkbuf[BP_SPRINTF_LEN];
1472
1473 ASSERT(bp->blk_birth != 0);
1474 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1475 (void) printf("\t%s\n", blkbuf);
1476 return (0);
1477 }
1478
1479 static void
1480 dump_full_bpobj(bpobj_t *bpo, char *name, int indent)
1481 {
1482 char bytes[32];
1483 char comp[32];
1484 char uncomp[32];
1485
1486 if (dump_opt['d'] < 3)
1487 return;
1488
1489 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1490 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1491 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1492 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1493 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1494 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1495 indent * 8, name,
1496 (u_longlong_t)bpo->bpo_object,
1497 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1498 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1499 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1500 bytes, comp, uncomp);
1501
1502 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1503 uint64_t subobj;
1504 bpobj_t subbpo;
1505 int error;
1506 VERIFY0(dmu_read(bpo->bpo_os,
1507 bpo->bpo_phys->bpo_subobjs,
1508 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1509 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1510 if (error != 0) {
1511 (void) printf("ERROR %u while trying to open "
1512 "subobj id %llu\n",
1513 error, (u_longlong_t)subobj);
1514 continue;
1515 }
1516 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1517 bpobj_close(&subbpo);
1518 }
1519 } else {
1520 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1521 indent * 8, name,
1522 (u_longlong_t)bpo->bpo_object,
1523 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1524 bytes);
1525 }
1526
1527 if (dump_opt['d'] < 5)
1528 return;
1529
1530
1531 if (indent == 0) {
1532 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1533 (void) printf("\n");
1534 }
1535 }
1536
1537 static void
1538 dump_deadlist(dsl_deadlist_t *dl)
1539 {
1540 dsl_deadlist_entry_t *dle;
1541 uint64_t unused;
1542 char bytes[32];
1543 char comp[32];
1544 char uncomp[32];
1545
1546 if (dump_opt['d'] < 3)
1547 return;
1548
1549 if (dl->dl_oldfmt) {
1550 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1551 return;
1552 }
1553
1554 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1555 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1556 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1557 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1558 bytes, comp, uncomp);
1559
1560 if (dump_opt['d'] < 4)
1561 return;
1562
1563 (void) printf("\n");
1564
1565 /* force the tree to be loaded */
1566 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1567
1568 for (dle = avl_first(&dl->dl_tree); dle;
1569 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1570 if (dump_opt['d'] >= 5) {
1571 char buf[128];
1572 (void) snprintf(buf, sizeof (buf),
1573 "mintxg %llu -> obj %llu",
1574 (longlong_t)dle->dle_mintxg,
1575 (longlong_t)dle->dle_bpobj.bpo_object);
1576
1577 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1578 } else {
1579 (void) printf("mintxg %llu -> obj %llu\n",
1580 (longlong_t)dle->dle_mintxg,
1581 (longlong_t)dle->dle_bpobj.bpo_object);
1582
1583 }
1584 }
1585 }
1586
1587 static avl_tree_t idx_tree;
1588 static avl_tree_t domain_tree;
1589 static boolean_t fuid_table_loaded;
1590 static objset_t *sa_os = NULL;
1591 static sa_attr_type_t *sa_attr_table = NULL;
1592
1593 static int
1594 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1595 {
1596 int err;
1597 uint64_t sa_attrs = 0;
1598 uint64_t version = 0;
1599
1600 VERIFY3P(sa_os, ==, NULL);
1601 err = dmu_objset_own(path, type, B_TRUE, tag, osp);
1602 if (err != 0) {
1603 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1604 strerror(err));
1605 return (err);
1606 }
1607
1608 if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
1609 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1610 8, 1, &version);
1611 if (version >= ZPL_VERSION_SA) {
1612 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1613 8, 1, &sa_attrs);
1614 }
1615 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1616 &sa_attr_table);
1617 if (err != 0) {
1618 (void) fprintf(stderr, "sa_setup failed: %s\n",
1619 strerror(err));
1620 dmu_objset_disown(*osp, tag);
1621 *osp = NULL;
1622 }
1623 }
1624 sa_os = *osp;
1625
1626 return (0);
1627 }
1628
1629 static void
1630 close_objset(objset_t *os, void *tag)
1631 {
1632 VERIFY3P(os, ==, sa_os);
1633 if (os->os_sa != NULL)
1634 sa_tear_down(os);
1635 dmu_objset_disown(os, tag);
1636 sa_attr_table = NULL;
1637 sa_os = NULL;
1638 }
1639
1640 static void
1641 fuid_table_destroy()
1642 {
1643 if (fuid_table_loaded) {
1644 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1645 fuid_table_loaded = B_FALSE;
1646 }
1647 }
1648
1649 /*
1650 * print uid or gid information.
1651 * For normal POSIX id just the id is printed in decimal format.
1652 * For CIFS files with FUID the fuid is printed in hex followed by
1653 * the domain-rid string.
1654 */
1655 static void
1656 print_idstr(uint64_t id, const char *id_type)
1657 {
1658 if (FUID_INDEX(id)) {
1659 char *domain;
1660
1661 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1662 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1663 (u_longlong_t)id, domain, (int)FUID_RID(id));
1664 } else {
1665 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1666 }
1667
1668 }
1669
1670 static void
1671 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1672 {
1673 uint32_t uid_idx, gid_idx;
1674
1675 uid_idx = FUID_INDEX(uid);
1676 gid_idx = FUID_INDEX(gid);
1677
1678 /* Load domain table, if not already loaded */
1679 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1680 uint64_t fuid_obj;
1681
1682 /* first find the fuid object. It lives in the master node */
1683 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1684 8, 1, &fuid_obj) == 0);
1685 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1686 (void) zfs_fuid_table_load(os, fuid_obj,
1687 &idx_tree, &domain_tree);
1688 fuid_table_loaded = B_TRUE;
1689 }
1690
1691 print_idstr(uid, "uid");
1692 print_idstr(gid, "gid");
1693 }
1694
1695 /*ARGSUSED*/
1696 static void
1697 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1698 {
1699 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1700 sa_handle_t *hdl;
1701 uint64_t xattr, rdev, gen;
1702 uint64_t uid, gid, mode, fsize, parent, links;
1703 uint64_t pflags;
1704 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1705 time_t z_crtime, z_atime, z_mtime, z_ctime;
1706 sa_bulk_attr_t bulk[12];
1707 int idx = 0;
1708 int error;
1709
1710 VERIFY3P(os, ==, sa_os);
1711 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1712 (void) printf("Failed to get handle for SA znode\n");
1713 return;
1714 }
1715
1716 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1717 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1718 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1719 &links, 8);
1720 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1721 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1722 &mode, 8);
1723 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1724 NULL, &parent, 8);
1725 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1726 &fsize, 8);
1727 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1728 acctm, 16);
1729 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1730 modtm, 16);
1731 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1732 crtm, 16);
1733 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1734 chgtm, 16);
1735 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1736 &pflags, 8);
1737
1738 if (sa_bulk_lookup(hdl, bulk, idx)) {
1739 (void) sa_handle_destroy(hdl);
1740 return;
1741 }
1742
1743 z_crtime = (time_t)crtm[0];
1744 z_atime = (time_t)acctm[0];
1745 z_mtime = (time_t)modtm[0];
1746 z_ctime = (time_t)chgtm[0];
1747
1748 if (dump_opt['d'] > 4) {
1749 error = zfs_obj_to_path(os, object, path, sizeof (path));
1750 if (error != 0) {
1751 (void) snprintf(path, sizeof (path),
1752 "\?\?\?<object#%llu>", (u_longlong_t)object);
1753 }
1754 (void) printf("\tpath %s\n", path);
1755 }
1756 dump_uidgid(os, uid, gid);
1757 (void) printf("\tatime %s", ctime(&z_atime));
1758 (void) printf("\tmtime %s", ctime(&z_mtime));
1759 (void) printf("\tctime %s", ctime(&z_ctime));
1760 (void) printf("\tcrtime %s", ctime(&z_crtime));
1761 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1762 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1763 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1764 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1765 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1766 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1767 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1768 sizeof (uint64_t)) == 0)
1769 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1770 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1771 sizeof (uint64_t)) == 0)
1772 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1773 sa_handle_destroy(hdl);
1774 }
1775
1776 /*ARGSUSED*/
1777 static void
1778 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1779 {
1780 }
1781
1782 /*ARGSUSED*/
1783 static void
1784 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1785 {
1786 }
1787
1788 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1789 dump_none, /* unallocated */
1790 dump_zap, /* object directory */
1791 dump_uint64, /* object array */
1792 dump_none, /* packed nvlist */
1793 dump_packed_nvlist, /* packed nvlist size */
1794 dump_none, /* bpobj */
1795 dump_bpobj, /* bpobj header */
1796 dump_none, /* SPA space map header */
1797 dump_none, /* SPA space map */
1798 dump_none, /* ZIL intent log */
1799 dump_dnode, /* DMU dnode */
1800 dump_dmu_objset, /* DMU objset */
1801 dump_dsl_dir, /* DSL directory */
1802 dump_zap, /* DSL directory child map */
1803 dump_zap, /* DSL dataset snap map */
1804 dump_zap, /* DSL props */
1805 dump_dsl_dataset, /* DSL dataset */
1806 dump_znode, /* ZFS znode */
1807 dump_acl, /* ZFS V0 ACL */
1808 dump_uint8, /* ZFS plain file */
1809 dump_zpldir, /* ZFS directory */
1810 dump_zap, /* ZFS master node */
1811 dump_zap, /* ZFS delete queue */
1812 dump_uint8, /* zvol object */
1813 dump_zap, /* zvol prop */
1814 dump_uint8, /* other uint8[] */
1815 dump_uint64, /* other uint64[] */
1816 dump_zap, /* other ZAP */
1817 dump_zap, /* persistent error log */
1818 dump_uint8, /* SPA history */
1819 dump_history_offsets, /* SPA history offsets */
1820 dump_zap, /* Pool properties */
1821 dump_zap, /* DSL permissions */
1822 dump_acl, /* ZFS ACL */
1823 dump_uint8, /* ZFS SYSACL */
1824 dump_none, /* FUID nvlist */
1825 dump_packed_nvlist, /* FUID nvlist size */
1826 dump_zap, /* DSL dataset next clones */
1827 dump_zap, /* DSL scrub queue */
1828 dump_zap, /* ZFS user/group used */
1829 dump_zap, /* ZFS user/group quota */
1830 dump_zap, /* snapshot refcount tags */
1831 dump_ddt_zap, /* DDT ZAP object */
1832 dump_zap, /* DDT statistics */
1833 dump_znode, /* SA object */
1834 dump_zap, /* SA Master Node */
1835 dump_sa_attrs, /* SA attribute registration */
1836 dump_sa_layouts, /* SA attribute layouts */
1837 dump_zap, /* DSL scrub translations */
1838 dump_none, /* fake dedup BP */
1839 dump_zap, /* deadlist */
1840 dump_none, /* deadlist hdr */
1841 dump_zap, /* dsl clones */
1842 dump_bpobj_subobjs, /* bpobj subobjs */
1843 dump_unknown, /* Unknown type, must be last */
1844 };
1845
1846 static void
1847 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1848 {
1849 dmu_buf_t *db = NULL;
1850 dmu_object_info_t doi;
1851 dnode_t *dn;
1852 void *bonus = NULL;
1853 size_t bsize = 0;
1854 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1855 char bonus_size[32];
1856 char aux[50];
1857 int error;
1858
1859 if (*print_header) {
1860 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1861 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1862 "%full", "type");
1863 *print_header = 0;
1864 }
1865
1866 if (object == 0) {
1867 dn = DMU_META_DNODE(os);
1868 } else {
1869 error = dmu_bonus_hold(os, object, FTAG, &db);
1870 if (error)
1871 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1872 object, error);
1873 bonus = db->db_data;
1874 bsize = db->db_size;
1875 dn = DB_DNODE((dmu_buf_impl_t *)db);
1876 }
1877 dmu_object_info_from_dnode(dn, &doi);
1878
1879 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1880 zdb_nicenum(doi.doi_data_block_size, dblk);
1881 zdb_nicenum(doi.doi_max_offset, lsize);
1882 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1883 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1884 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1885 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1886 doi.doi_max_offset);
1887
1888 aux[0] = '\0';
1889
1890 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1891 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1892 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1893 }
1894
1895 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1896 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1897 ZDB_COMPRESS_NAME(doi.doi_compress));
1898 }
1899
1900 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1901 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1902 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1903
1904 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1905 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1906 "", "", "", "", "", bonus_size, "bonus",
1907 ZDB_OT_NAME(doi.doi_bonus_type));
1908 }
1909
1910 if (verbosity >= 4) {
1911 (void) printf("\tdnode flags: %s%s%s\n",
1912 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1913 "USED_BYTES " : "",
1914 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1915 "USERUSED_ACCOUNTED " : "",
1916 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1917 "SPILL_BLKPTR" : "");
1918 (void) printf("\tdnode maxblkid: %llu\n",
1919 (longlong_t)dn->dn_phys->dn_maxblkid);
1920
1921 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1922 bonus, bsize);
1923 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1924 *print_header = 1;
1925 }
1926
1927 if (verbosity >= 5)
1928 dump_indirect(dn);
1929
1930 if (verbosity >= 5) {
1931 /*
1932 * Report the list of segments that comprise the object.
1933 */
1934 uint64_t start = 0;
1935 uint64_t end;
1936 uint64_t blkfill = 1;
1937 int minlvl = 1;
1938
1939 if (dn->dn_type == DMU_OT_DNODE) {
1940 minlvl = 0;
1941 blkfill = DNODES_PER_BLOCK;
1942 }
1943
1944 for (;;) {
1945 char segsize[32];
1946 error = dnode_next_offset(dn,
1947 0, &start, minlvl, blkfill, 0);
1948 if (error)
1949 break;
1950 end = start;
1951 error = dnode_next_offset(dn,
1952 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1953 zdb_nicenum(end - start, segsize);
1954 (void) printf("\t\tsegment [%016llx, %016llx)"
1955 " size %5s\n", (u_longlong_t)start,
1956 (u_longlong_t)end, segsize);
1957 if (error)
1958 break;
1959 start = end;
1960 }
1961 }
1962
1963 if (db != NULL)
1964 dmu_buf_rele(db, FTAG);
1965 }
1966
1967 static char *objset_types[DMU_OST_NUMTYPES] = {
1968 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1969
1970 static void
1971 dump_dir(objset_t *os)
1972 {
1973 dmu_objset_stats_t dds;
1974 uint64_t object, object_count;
1975 uint64_t refdbytes, usedobjs, scratch;
1976 char numbuf[32];
1977 char blkbuf[BP_SPRINTF_LEN + 20];
1978 char osname[ZFS_MAX_DATASET_NAME_LEN];
1979 char *type = "UNKNOWN";
1980 int verbosity = dump_opt['d'];
1981 int print_header = 1;
1982 int i, error;
1983
1984 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1985 dmu_objset_fast_stat(os, &dds);
1986 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1987
1988 if (dds.dds_type < DMU_OST_NUMTYPES)
1989 type = objset_types[dds.dds_type];
1990
1991 if (dds.dds_type == DMU_OST_META) {
1992 dds.dds_creation_txg = TXG_INITIAL;
1993 usedobjs = BP_GET_FILL(os->os_rootbp);
1994 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
1995 dd_used_bytes;
1996 } else {
1997 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1998 }
1999
2000 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
2001
2002 zdb_nicenum(refdbytes, numbuf);
2003
2004 if (verbosity >= 4) {
2005 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
2006 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2007 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2008 } else {
2009 blkbuf[0] = '\0';
2010 }
2011
2012 dmu_objset_name(os, osname);
2013
2014 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2015 "%s, %llu objects%s\n",
2016 osname, type, (u_longlong_t)dmu_objset_id(os),
2017 (u_longlong_t)dds.dds_creation_txg,
2018 numbuf, (u_longlong_t)usedobjs, blkbuf);
2019
2020 if (zopt_objects != 0) {
2021 for (i = 0; i < zopt_objects; i++)
2022 dump_object(os, zopt_object[i], verbosity,
2023 &print_header);
2024 (void) printf("\n");
2025 return;
2026 }
2027
2028 if (dump_opt['i'] != 0 || verbosity >= 2)
2029 dump_intent_log(dmu_objset_zil(os));
2030
2031 if (dmu_objset_ds(os) != NULL)
2032 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
2033
2034 if (verbosity < 2)
2035 return;
2036
2037 if (BP_IS_HOLE(os->os_rootbp))
2038 return;
2039
2040 dump_object(os, 0, verbosity, &print_header);
2041 object_count = 0;
2042 if (DMU_USERUSED_DNODE(os) != NULL &&
2043 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2044 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2045 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2046 }
2047
2048 object = 0;
2049 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2050 dump_object(os, object, verbosity, &print_header);
2051 object_count++;
2052 }
2053
2054 ASSERT3U(object_count, ==, usedobjs);
2055
2056 (void) printf("\n");
2057
2058 if (error != ESRCH) {
2059 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2060 abort();
2061 }
2062 }
2063
2064 static void
2065 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2066 {
2067 time_t timestamp = ub->ub_timestamp;
2068
2069 (void) printf(header ? header : "");
2070 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2071 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2072 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2073 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2074 (void) printf("\ttimestamp = %llu UTC = %s",
2075 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2076 if (dump_opt['u'] >= 3) {
2077 char blkbuf[BP_SPRINTF_LEN];
2078 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2079 (void) printf("\trootbp = %s\n", blkbuf);
2080 }
2081 (void) printf(footer ? footer : "");
2082 }
2083
2084 static void
2085 dump_config(spa_t *spa)
2086 {
2087 dmu_buf_t *db;
2088 size_t nvsize = 0;
2089 int error = 0;
2090
2091
2092 error = dmu_bonus_hold(spa->spa_meta_objset,
2093 spa->spa_config_object, FTAG, &db);
2094
2095 if (error == 0) {
2096 nvsize = *(uint64_t *)db->db_data;
2097 dmu_buf_rele(db, FTAG);
2098
2099 (void) printf("\nMOS Configuration:\n");
2100 dump_packed_nvlist(spa->spa_meta_objset,
2101 spa->spa_config_object, (void *)&nvsize, 1);
2102 } else {
2103 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2104 (u_longlong_t)spa->spa_config_object, error);
2105 }
2106 }
2107
2108 static void
2109 dump_cachefile(const char *cachefile)
2110 {
2111 int fd;
2112 struct stat64 statbuf;
2113 char *buf;
2114 nvlist_t *config;
2115
2116 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2117 (void) printf("cannot open '%s': %s\n", cachefile,
2118 strerror(errno));
2119 exit(1);
2120 }
2121
2122 if (fstat64(fd, &statbuf) != 0) {
2123 (void) printf("failed to stat '%s': %s\n", cachefile,
2124 strerror(errno));
2125 exit(1);
2126 }
2127
2128 if ((buf = malloc(statbuf.st_size)) == NULL) {
2129 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2130 (u_longlong_t)statbuf.st_size);
2131 exit(1);
2132 }
2133
2134 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2135 (void) fprintf(stderr, "failed to read %llu bytes\n",
2136 (u_longlong_t)statbuf.st_size);
2137 exit(1);
2138 }
2139
2140 (void) close(fd);
2141
2142 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2143 (void) fprintf(stderr, "failed to unpack nvlist\n");
2144 exit(1);
2145 }
2146
2147 free(buf);
2148
2149 dump_nvlist(config, 0);
2150
2151 nvlist_free(config);
2152 }
2153
2154 #define ZDB_MAX_UB_HEADER_SIZE 32
2155
2156 static void
2157 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2158 {
2159 vdev_t vd;
2160 vdev_t *vdp = &vd;
2161 char header[ZDB_MAX_UB_HEADER_SIZE];
2162
2163 vd.vdev_ashift = ashift;
2164 vdp->vdev_top = vdp;
2165
2166 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2167 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2168 uberblock_t *ub = (void *)((char *)lbl + uoff);
2169
2170 if (uberblock_verify(ub))
2171 continue;
2172 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2173 "Uberblock[%d]\n", i);
2174 dump_uberblock(ub, header, "");
2175 }
2176 }
2177
2178 static char curpath[PATH_MAX];
2179
2180 /*
2181 * Iterate through the path components, recursively passing
2182 * current one's obj and remaining path until we find the obj
2183 * for the last one.
2184 */
2185 static int
2186 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2187 {
2188 int err;
2189 int header = 1;
2190 uint64_t child_obj;
2191 char *s;
2192 dmu_buf_t *db;
2193 dmu_object_info_t doi;
2194
2195 if ((s = strchr(name, '/')) != NULL)
2196 *s = '\0';
2197 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2198
2199 (void) strlcat(curpath, name, sizeof (curpath));
2200
2201 if (err != 0) {
2202 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2203 curpath, strerror(err));
2204 return (err);
2205 }
2206
2207 child_obj = ZFS_DIRENT_OBJ(child_obj);
2208 err = sa_buf_hold(os, child_obj, FTAG, &db);
2209 if (err != 0) {
2210 (void) fprintf(stderr,
2211 "failed to get SA dbuf for obj %llu: %s\n",
2212 (u_longlong_t)child_obj, strerror(err));
2213 return (EINVAL);
2214 }
2215 dmu_object_info_from_db(db, &doi);
2216 sa_buf_rele(db, FTAG);
2217
2218 if (doi.doi_bonus_type != DMU_OT_SA &&
2219 doi.doi_bonus_type != DMU_OT_ZNODE) {
2220 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2221 doi.doi_bonus_type, (u_longlong_t)child_obj);
2222 return (EINVAL);
2223 }
2224
2225 if (dump_opt['v'] > 6) {
2226 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2227 (u_longlong_t)child_obj, curpath, doi.doi_type,
2228 doi.doi_bonus_type);
2229 }
2230
2231 (void) strlcat(curpath, "/", sizeof (curpath));
2232
2233 switch (doi.doi_type) {
2234 case DMU_OT_DIRECTORY_CONTENTS:
2235 if (s != NULL && *(s + 1) != '\0')
2236 return (dump_path_impl(os, child_obj, s + 1));
2237 /*FALLTHROUGH*/
2238 case DMU_OT_PLAIN_FILE_CONTENTS:
2239 dump_object(os, child_obj, dump_opt['v'], &header);
2240 return (0);
2241 default:
2242 (void) fprintf(stderr, "object %llu has non-file/directory "
2243 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2244 break;
2245 }
2246
2247 return (EINVAL);
2248 }
2249
2250 /*
2251 * Dump the blocks for the object specified by path inside the dataset.
2252 */
2253 static int
2254 dump_path(char *ds, char *path)
2255 {
2256 int err;
2257 objset_t *os;
2258 uint64_t root_obj;
2259
2260 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2261 if (err != 0)
2262 return (err);
2263
2264 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2265 if (err != 0) {
2266 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2267 strerror(err));
2268 dmu_objset_disown(os, FTAG);
2269 return (EINVAL);
2270 }
2271
2272 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2273
2274 err = dump_path_impl(os, root_obj, path);
2275
2276 close_objset(os, FTAG);
2277 return (err);
2278 }
2279
2280 static int
2281 dump_label(const char *dev)
2282 {
2283 int fd;
2284 vdev_label_t label;
2285 char path[MAXPATHLEN];
2286 char *buf = label.vl_vdev_phys.vp_nvlist;
2287 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2288 struct stat64 statbuf;
2289 uint64_t psize, ashift;
2290 boolean_t label_found = B_FALSE;
2291
2292 (void) strlcpy(path, dev, sizeof (path));
2293 if (dev[0] == '/') {
2294 if (strncmp(dev, ZFS_DISK_ROOTD,
2295 strlen(ZFS_DISK_ROOTD)) == 0) {
2296 (void) snprintf(path, sizeof (path), "%s%s",
2297 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD));
2298 }
2299 } else if (stat64(path, &statbuf) != 0) {
2300 char *s;
2301
2302 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD,
2303 dev);
2304 if (((s = strrchr(dev, 's')) == NULL &&
2305 (s = strchr(dev, 'p')) == NULL) ||
2306 !isdigit(*(s + 1)))
2307 (void) strlcat(path, "s0", sizeof (path));
2308 }
2309
2310 if ((fd = open64(path, O_RDONLY)) < 0) {
2311 (void) fprintf(stderr, "cannot open '%s': %s\n", path,
2312 strerror(errno));
2313 exit(1);
2314 }
2315
2316 if (fstat64(fd, &statbuf) != 0) {
2317 (void) fprintf(stderr, "failed to stat '%s': %s\n", path,
2318 strerror(errno));
2319 (void) close(fd);
2320 exit(1);
2321 }
2322
2323 if (S_ISBLK(statbuf.st_mode)) {
2324 (void) fprintf(stderr,
2325 "cannot use '%s': character device required\n", path);
2326 (void) close(fd);
2327 exit(1);
2328 }
2329
2330 psize = statbuf.st_size;
2331 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2332
2333 for (int l = 0; l < VDEV_LABELS; l++) {
2334 nvlist_t *config = NULL;
2335
2336 if (!dump_opt['q']) {
2337 (void) printf("------------------------------------\n");
2338 (void) printf("LABEL %d\n", l);
2339 (void) printf("------------------------------------\n");
2340 }
2341
2342 if (pread64(fd, &label, sizeof (label),
2343 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2344 if (!dump_opt['q'])
2345 (void) printf("failed to read label %d\n", l);
2346 continue;
2347 }
2348
2349 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2350 if (!dump_opt['q'])
2351 (void) printf("failed to unpack label %d\n", l);
2352 ashift = SPA_MINBLOCKSHIFT;
2353 } else {
2354 nvlist_t *vdev_tree = NULL;
2355
2356 if (!dump_opt['q'])
2357 dump_nvlist(config, 4);
2358 if ((nvlist_lookup_nvlist(config,
2359 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2360 (nvlist_lookup_uint64(vdev_tree,
2361 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2362 ashift = SPA_MINBLOCKSHIFT;
2363 nvlist_free(config);
2364 label_found = B_TRUE;
2365 }
2366 if (dump_opt['u'])
2367 dump_label_uberblocks(&label, ashift);
2368 }
2369
2370 (void) close(fd);
2371
2372 return (label_found ? 0 : 2);
2373 }
2374
2375 static uint64_t dataset_feature_count[SPA_FEATURES];
2376
2377 /*ARGSUSED*/
2378 static int
2379 dump_one_dir(const char *dsname, void *arg)
2380 {
2381 int error;
2382 objset_t *os;
2383
2384 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
2385 if (error != 0)
2386 return (0);
2387
2388 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2389 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2390 continue;
2391 ASSERT(spa_feature_table[f].fi_flags &
2392 ZFEATURE_FLAG_PER_DATASET);
2393 dataset_feature_count[f]++;
2394 }
2395
2396 dump_dir(os);
2397 close_objset(os, FTAG);
2398 fuid_table_destroy();
2399 return (0);
2400 }
2401
2402 /*
2403 * Block statistics.
2404 */
2405 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2406 typedef struct zdb_blkstats {
2407 uint64_t zb_asize;
2408 uint64_t zb_lsize;
2409 uint64_t zb_psize;
2410 uint64_t zb_count;
2411 uint64_t zb_gangs;
2412 uint64_t zb_ditto_samevdev;
2413 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2414 } zdb_blkstats_t;
2415
2416 /*
2417 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2418 */
2419 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2420 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2421 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2422 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2423
2424 static char *zdb_ot_extname[] = {
2425 "deferred free",
2426 "dedup ditto",
2427 "other",
2428 "Total",
2429 };
2430
2431 #define ZB_TOTAL DN_MAX_LEVELS
2432
2433 typedef struct zdb_cb {
2434 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2435 uint64_t zcb_dedup_asize;
2436 uint64_t zcb_dedup_blocks;
2437 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2438 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2439 [BPE_PAYLOAD_SIZE];
2440 uint64_t zcb_start;
2441 uint64_t zcb_lastprint;
2442 uint64_t zcb_totalasize;
2443 uint64_t zcb_errors[256];
2444 int zcb_readfails;
2445 int zcb_haderrors;
2446 spa_t *zcb_spa;
2447 } zdb_cb_t;
2448
2449 static void
2450 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2451 dmu_object_type_t type)
2452 {
2453 uint64_t refcnt = 0;
2454
2455 ASSERT(type < ZDB_OT_TOTAL);
2456
2457 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2458 return;
2459
2460 for (int i = 0; i < 4; i++) {
2461 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2462 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2463 int equal;
2464 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2465
2466 zb->zb_asize += BP_GET_ASIZE(bp);
2467 zb->zb_lsize += BP_GET_LSIZE(bp);
2468 zb->zb_psize += BP_GET_PSIZE(bp);
2469 zb->zb_count++;
2470
2471 /*
2472 * The histogram is only big enough to record blocks up to
2473 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2474 * "other", bucket.
2475 */
2476 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2477 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2478 zb->zb_psize_histogram[idx]++;
2479
2480 zb->zb_gangs += BP_COUNT_GANG(bp);
2481
2482 switch (BP_GET_NDVAS(bp)) {
2483 case 2:
2484 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2485 DVA_GET_VDEV(&bp->blk_dva[1]))
2486 zb->zb_ditto_samevdev++;
2487 break;
2488 case 3:
2489 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2490 DVA_GET_VDEV(&bp->blk_dva[1])) +
2491 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2492 DVA_GET_VDEV(&bp->blk_dva[2])) +
2493 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2494 DVA_GET_VDEV(&bp->blk_dva[2]));
2495 if (equal != 0)
2496 zb->zb_ditto_samevdev++;
2497 break;
2498 }
2499
2500 }
2501
2502 if (BP_IS_EMBEDDED(bp)) {
2503 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2504 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2505 [BPE_GET_PSIZE(bp)]++;
2506 return;
2507 }
2508
2509 if (dump_opt['L'])
2510 return;
2511
2512 if (BP_GET_DEDUP(bp)) {
2513 ddt_t *ddt;
2514 ddt_entry_t *dde;
2515
2516 ddt = ddt_select(zcb->zcb_spa, bp);
2517 ddt_enter(ddt);
2518 dde = ddt_lookup(ddt, bp, B_FALSE);
2519
2520 if (dde == NULL) {
2521 refcnt = 0;
2522 } else {
2523 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2524 ddt_phys_decref(ddp);
2525 refcnt = ddp->ddp_refcnt;
2526 if (ddt_phys_total_refcnt(dde) == 0)
2527 ddt_remove(ddt, dde);
2528 }
2529 ddt_exit(ddt);
2530 }
2531
2532 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2533 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2534 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2535 }
2536
2537 static void
2538 zdb_blkptr_done(zio_t *zio)
2539 {
2540 spa_t *spa = zio->io_spa;
2541 blkptr_t *bp = zio->io_bp;
2542 int ioerr = zio->io_error;
2543 zdb_cb_t *zcb = zio->io_private;
2544 zbookmark_phys_t *zb = &zio->io_bookmark;
2545
2546 abd_free(zio->io_abd);
2547
2548 mutex_enter(&spa->spa_scrub_lock);
2549 spa->spa_scrub_inflight--;
2550 cv_broadcast(&spa->spa_scrub_io_cv);
2551
2552 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2553 char blkbuf[BP_SPRINTF_LEN];
2554
2555 zcb->zcb_haderrors = 1;
2556 zcb->zcb_errors[ioerr]++;
2557
2558 if (dump_opt['b'] >= 2)
2559 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2560 else
2561 blkbuf[0] = '\0';
2562
2563 (void) printf("zdb_blkptr_cb: "
2564 "Got error %d reading "
2565 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2566 ioerr,
2567 (u_longlong_t)zb->zb_objset,
2568 (u_longlong_t)zb->zb_object,
2569 (u_longlong_t)zb->zb_level,
2570 (u_longlong_t)zb->zb_blkid,
2571 blkbuf);
2572 }
2573 mutex_exit(&spa->spa_scrub_lock);
2574 }
2575
2576 static int
2577 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2578 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2579 {
2580 zdb_cb_t *zcb = arg;
2581 dmu_object_type_t type;
2582 boolean_t is_metadata;
2583
2584 if (bp == NULL)
2585 return (0);
2586
2587 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2588 char blkbuf[BP_SPRINTF_LEN];
2589 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2590 (void) printf("objset %llu object %llu "
2591 "level %lld offset 0x%llx %s\n",
2592 (u_longlong_t)zb->zb_objset,
2593 (u_longlong_t)zb->zb_object,
2594 (longlong_t)zb->zb_level,
2595 (u_longlong_t)blkid2offset(dnp, bp, zb),
2596 blkbuf);
2597 }
2598
2599 if (BP_IS_HOLE(bp))
2600 return (0);
2601
2602 type = BP_GET_TYPE(bp);
2603
2604 zdb_count_block(zcb, zilog, bp,
2605 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2606
2607 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2608
2609 if (!BP_IS_EMBEDDED(bp) &&
2610 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2611 size_t size = BP_GET_PSIZE(bp);
2612 abd_t *abd = abd_alloc(size, B_FALSE);
2613 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2614
2615 /* If it's an intent log block, failure is expected. */
2616 if (zb->zb_level == ZB_ZIL_LEVEL)
2617 flags |= ZIO_FLAG_SPECULATIVE;
2618
2619 mutex_enter(&spa->spa_scrub_lock);
2620 while (spa->spa_scrub_inflight > max_inflight)
2621 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2622 spa->spa_scrub_inflight++;
2623 mutex_exit(&spa->spa_scrub_lock);
2624
2625 zio_nowait(zio_read(NULL, spa, bp, abd, size,
2626 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2627 }
2628
2629 zcb->zcb_readfails = 0;
2630
2631 /* only call gethrtime() every 100 blocks */
2632 static int iters;
2633 if (++iters > 100)
2634 iters = 0;
2635 else
2636 return (0);
2637
2638 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2639 uint64_t now = gethrtime();
2640 char buf[10];
2641 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2642 int kb_per_sec =
2643 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2644 int sec_remaining =
2645 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2646
2647 zfs_nicenum(bytes, buf, sizeof (buf));
2648 (void) fprintf(stderr,
2649 "\r%5s completed (%4dMB/s) "
2650 "estimated time remaining: %uhr %02umin %02usec ",
2651 buf, kb_per_sec / 1024,
2652 sec_remaining / 60 / 60,
2653 sec_remaining / 60 % 60,
2654 sec_remaining % 60);
2655
2656 zcb->zcb_lastprint = now;
2657 }
2658
2659 return (0);
2660 }
2661
2662 static void
2663 zdb_leak(void *arg, uint64_t start, uint64_t size)
2664 {
2665 vdev_t *vd = arg;
2666
2667 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2668 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2669 }
2670
2671 static metaslab_ops_t zdb_metaslab_ops = {
2672 NULL /* alloc */
2673 };
2674
2675 static void
2676 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2677 {
2678 ddt_bookmark_t ddb = { 0 };
2679 ddt_entry_t dde;
2680 int error;
2681
2682 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2683 blkptr_t blk;
2684 ddt_phys_t *ddp = dde.dde_phys;
2685
2686 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2687 return;
2688
2689 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2690
2691 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2692 if (ddp->ddp_phys_birth == 0)
2693 continue;
2694 ddt_bp_create(ddb.ddb_checksum,
2695 &dde.dde_key, ddp, &blk);
2696 if (p == DDT_PHYS_DITTO) {
2697 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2698 } else {
2699 zcb->zcb_dedup_asize +=
2700 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2701 zcb->zcb_dedup_blocks++;
2702 }
2703 }
2704 if (!dump_opt['L']) {
2705 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2706 ddt_enter(ddt);
2707 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2708 ddt_exit(ddt);
2709 }
2710 }
2711
2712 ASSERT(error == ENOENT);
2713 }
2714
2715 static void
2716 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2717 {
2718 zcb->zcb_spa = spa;
2719
2720 if (!dump_opt['L']) {
2721 vdev_t *rvd = spa->spa_root_vdev;
2722
2723 /*
2724 * We are going to be changing the meaning of the metaslab's
2725 * ms_tree. Ensure that the allocator doesn't try to
2726 * use the tree.
2727 */
2728 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
2729 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
2730
2731 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
2732 vdev_t *vd = rvd->vdev_child[c];
2733 metaslab_group_t *mg = vd->vdev_mg;
2734 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
2735 metaslab_t *msp = vd->vdev_ms[m];
2736 ASSERT3P(msp->ms_group, ==, mg);
2737 mutex_enter(&msp->ms_lock);
2738 metaslab_unload(msp);
2739
2740 /*
2741 * For leak detection, we overload the metaslab
2742 * ms_tree to contain allocated segments
2743 * instead of free segments. As a result,
2744 * we can't use the normal metaslab_load/unload
2745 * interfaces.
2746 */
2747 if (msp->ms_sm != NULL) {
2748 (void) fprintf(stderr,
2749 "\rloading space map for "
2750 "vdev %llu of %llu, "
2751 "metaslab %llu of %llu ...",
2752 (longlong_t)c,
2753 (longlong_t)rvd->vdev_children,
2754 (longlong_t)m,
2755 (longlong_t)vd->vdev_ms_count);
2756
2757 /*
2758 * We don't want to spend the CPU
2759 * manipulating the size-ordered
2760 * tree, so clear the range_tree
2761 * ops.
2762 */
2763 msp->ms_tree->rt_ops = NULL;
2764 VERIFY0(space_map_load(msp->ms_sm,
2765 msp->ms_tree, SM_ALLOC));
2766
2767 if (!msp->ms_loaded) {
2768 msp->ms_loaded = B_TRUE;
2769 }
2770 }
2771 mutex_exit(&msp->ms_lock);
2772 }
2773 }
2774 (void) fprintf(stderr, "\n");
2775 }
2776
2777 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2778
2779 zdb_ddt_leak_init(spa, zcb);
2780
2781 spa_config_exit(spa, SCL_CONFIG, FTAG);
2782 }
2783
2784 static void
2785 zdb_leak_fini(spa_t *spa)
2786 {
2787 if (!dump_opt['L']) {
2788 vdev_t *rvd = spa->spa_root_vdev;
2789 for (int c = 0; c < rvd->vdev_children; c++) {
2790 vdev_t *vd = rvd->vdev_child[c];
2791 metaslab_group_t *mg = vd->vdev_mg;
2792 for (int m = 0; m < vd->vdev_ms_count; m++) {
2793 metaslab_t *msp = vd->vdev_ms[m];
2794 ASSERT3P(mg, ==, msp->ms_group);
2795 mutex_enter(&msp->ms_lock);
2796
2797 /*
2798 * The ms_tree has been overloaded to
2799 * contain allocated segments. Now that we
2800 * finished traversing all blocks, any
2801 * block that remains in the ms_tree
2802 * represents an allocated block that we
2803 * did not claim during the traversal.
2804 * Claimed blocks would have been removed
2805 * from the ms_tree.
2806 */
2807 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2808
2809 if (msp->ms_loaded) {
2810 msp->ms_loaded = B_FALSE;
2811 }
2812
2813 mutex_exit(&msp->ms_lock);
2814 }
2815 }
2816 }
2817 }
2818
2819 /* ARGSUSED */
2820 static int
2821 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2822 {
2823 zdb_cb_t *zcb = arg;
2824
2825 if (dump_opt['b'] >= 5) {
2826 char blkbuf[BP_SPRINTF_LEN];
2827 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2828 (void) printf("[%s] %s\n",
2829 "deferred free", blkbuf);
2830 }
2831 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2832 return (0);
2833 }
2834
2835 static int
2836 dump_block_stats(spa_t *spa)
2837 {
2838 zdb_cb_t zcb = { 0 };
2839 zdb_blkstats_t *zb, *tzb;
2840 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2841 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2842 boolean_t leaks = B_FALSE;
2843
2844 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2845 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2846 (dump_opt['c'] == 1) ? "metadata " : "",
2847 dump_opt['c'] ? "checksums " : "",
2848 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2849 !dump_opt['L'] ? "nothing leaked " : "");
2850
2851 /*
2852 * Load all space maps as SM_ALLOC maps, then traverse the pool
2853 * claiming each block we discover. If the pool is perfectly
2854 * consistent, the space maps will be empty when we're done.
2855 * Anything left over is a leak; any block we can't claim (because
2856 * it's not part of any space map) is a double allocation,
2857 * reference to a freed block, or an unclaimed log block.
2858 */
2859 zdb_leak_init(spa, &zcb);
2860
2861 /*
2862 * If there's a deferred-free bplist, process that first.
2863 */
2864 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2865 count_block_cb, &zcb, NULL);
2866 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2867 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2868 count_block_cb, &zcb, NULL);
2869 }
2870 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2871 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2872 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2873 &zcb, NULL));
2874 }
2875
2876 if (dump_opt['c'] > 1)
2877 flags |= TRAVERSE_PREFETCH_DATA;
2878
2879 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2880 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2881 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2882
2883 /*
2884 * If we've traversed the data blocks then we need to wait for those
2885 * I/Os to complete. We leverage "The Godfather" zio to wait on
2886 * all async I/Os to complete.
2887 */
2888 if (dump_opt['c']) {
2889 for (int i = 0; i < max_ncpus; i++) {
2890 (void) zio_wait(spa->spa_async_zio_root[i]);
2891 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
2892 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2893 ZIO_FLAG_GODFATHER);
2894 }
2895 }
2896
2897 if (zcb.zcb_haderrors) {
2898 (void) printf("\nError counts:\n\n");
2899 (void) printf("\t%5s %s\n", "errno", "count");
2900 for (int e = 0; e < 256; e++) {
2901 if (zcb.zcb_errors[e] != 0) {
2902 (void) printf("\t%5d %llu\n",
2903 e, (u_longlong_t)zcb.zcb_errors[e]);
2904 }
2905 }
2906 }
2907
2908 /*
2909 * Report any leaked segments.
2910 */
2911 zdb_leak_fini(spa);
2912
2913 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2914
2915 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2916 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2917
2918 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2919 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2920
2921 if (total_found == total_alloc) {
2922 if (!dump_opt['L'])
2923 (void) printf("\n\tNo leaks (block sum matches space"
2924 " maps exactly)\n");
2925 } else {
2926 (void) printf("block traversal size %llu != alloc %llu "
2927 "(%s %lld)\n",
2928 (u_longlong_t)total_found,
2929 (u_longlong_t)total_alloc,
2930 (dump_opt['L']) ? "unreachable" : "leaked",
2931 (longlong_t)(total_alloc - total_found));
2932 leaks = B_TRUE;
2933 }
2934
2935 if (tzb->zb_count == 0)
2936 return (2);
2937
2938 (void) printf("\n");
2939 (void) printf("\tbp count: %10llu\n",
2940 (u_longlong_t)tzb->zb_count);
2941 (void) printf("\tganged count: %10llu\n",
2942 (longlong_t)tzb->zb_gangs);
2943 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2944 (u_longlong_t)tzb->zb_lsize,
2945 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2946 (void) printf("\tbp physical: %10llu avg:"
2947 " %6llu compression: %6.2f\n",
2948 (u_longlong_t)tzb->zb_psize,
2949 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2950 (double)tzb->zb_lsize / tzb->zb_psize);
2951 (void) printf("\tbp allocated: %10llu avg:"
2952 " %6llu compression: %6.2f\n",
2953 (u_longlong_t)tzb->zb_asize,
2954 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2955 (double)tzb->zb_lsize / tzb->zb_asize);
2956 (void) printf("\tbp deduped: %10llu ref>1:"
2957 " %6llu deduplication: %6.2f\n",
2958 (u_longlong_t)zcb.zcb_dedup_asize,
2959 (u_longlong_t)zcb.zcb_dedup_blocks,
2960 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2961 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2962 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2963
2964 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2965 if (zcb.zcb_embedded_blocks[i] == 0)
2966 continue;
2967 (void) printf("\n");
2968 (void) printf("\tadditional, non-pointer bps of type %u: "
2969 "%10llu\n",
2970 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2971
2972 if (dump_opt['b'] >= 3) {
2973 (void) printf("\t number of (compressed) bytes: "
2974 "number of bps\n");
2975 dump_histogram(zcb.zcb_embedded_histogram[i],
2976 sizeof (zcb.zcb_embedded_histogram[i]) /
2977 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2978 }
2979 }
2980
2981 if (tzb->zb_ditto_samevdev != 0) {
2982 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2983 (longlong_t)tzb->zb_ditto_samevdev);
2984 }
2985
2986 if (dump_opt['b'] >= 2) {
2987 int l, t, level;
2988 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2989 "\t avg\t comp\t%%Total\tType\n");
2990
2991 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2992 char csize[32], lsize[32], psize[32], asize[32];
2993 char avg[32], gang[32];
2994 char *typename;
2995
2996 if (t < DMU_OT_NUMTYPES)
2997 typename = dmu_ot[t].ot_name;
2998 else
2999 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
3000
3001 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
3002 (void) printf("%6s\t%5s\t%5s\t%5s"
3003 "\t%5s\t%5s\t%6s\t%s\n",
3004 "-",
3005 "-",
3006 "-",
3007 "-",
3008 "-",
3009 "-",
3010 "-",
3011 typename);
3012 continue;
3013 }
3014
3015 for (l = ZB_TOTAL - 1; l >= -1; l--) {
3016 level = (l == -1 ? ZB_TOTAL : l);
3017 zb = &zcb.zcb_type[level][t];
3018
3019 if (zb->zb_asize == 0)
3020 continue;
3021
3022 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
3023 continue;
3024
3025 if (level == 0 && zb->zb_asize ==
3026 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
3027 continue;
3028
3029 zdb_nicenum(zb->zb_count, csize);
3030 zdb_nicenum(zb->zb_lsize, lsize);
3031 zdb_nicenum(zb->zb_psize, psize);
3032 zdb_nicenum(zb->zb_asize, asize);
3033 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
3034 zdb_nicenum(zb->zb_gangs, gang);
3035
3036 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
3037 "\t%5.2f\t%6.2f\t",
3038 csize, lsize, psize, asize, avg,
3039 (double)zb->zb_lsize / zb->zb_psize,
3040 100.0 * zb->zb_asize / tzb->zb_asize);
3041
3042 if (level == ZB_TOTAL)
3043 (void) printf("%s\n", typename);
3044 else
3045 (void) printf(" L%d %s\n",
3046 level, typename);
3047
3048 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
3049 (void) printf("\t number of ganged "
3050 "blocks: %s\n", gang);
3051 }
3052
3053 if (dump_opt['b'] >= 4) {
3054 (void) printf("psize "
3055 "(in 512-byte sectors): "
3056 "number of blocks\n");
3057 dump_histogram(zb->zb_psize_histogram,
3058 PSIZE_HISTO_SIZE, 0);
3059 }
3060 }
3061 }
3062 }
3063
3064 (void) printf("\n");
3065
3066 if (leaks)
3067 return (2);
3068
3069 if (zcb.zcb_haderrors)
3070 return (3);
3071
3072 return (0);
3073 }
3074
3075 typedef struct zdb_ddt_entry {
3076 ddt_key_t zdde_key;
3077 uint64_t zdde_ref_blocks;
3078 uint64_t zdde_ref_lsize;
3079 uint64_t zdde_ref_psize;
3080 uint64_t zdde_ref_dsize;
3081 avl_node_t zdde_node;
3082 } zdb_ddt_entry_t;
3083
3084 /* ARGSUSED */
3085 static int
3086 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3087 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3088 {
3089 avl_tree_t *t = arg;
3090 avl_index_t where;
3091 zdb_ddt_entry_t *zdde, zdde_search;
3092
3093 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
3094 return (0);
3095
3096 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
3097 (void) printf("traversing objset %llu, %llu objects, "
3098 "%lu blocks so far\n",
3099 (u_longlong_t)zb->zb_objset,
3100 (u_longlong_t)BP_GET_FILL(bp),
3101 avl_numnodes(t));
3102 }
3103
3104 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
3105 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
3106 return (0);
3107
3108 ddt_key_fill(&zdde_search.zdde_key, bp);
3109
3110 zdde = avl_find(t, &zdde_search, &where);
3111
3112 if (zdde == NULL) {
3113 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
3114 zdde->zdde_key = zdde_search.zdde_key;
3115 avl_insert(t, zdde, where);
3116 }
3117
3118 zdde->zdde_ref_blocks += 1;
3119 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
3120 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
3121 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
3122
3123 return (0);
3124 }
3125
3126 static void
3127 dump_simulated_ddt(spa_t *spa)
3128 {
3129 avl_tree_t t;
3130 void *cookie = NULL;
3131 zdb_ddt_entry_t *zdde;
3132 ddt_histogram_t ddh_total = { 0 };
3133 ddt_stat_t dds_total = { 0 };
3134
3135 avl_create(&t, ddt_entry_compare,
3136 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
3137
3138 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3139
3140 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
3141 zdb_ddt_add_cb, &t);
3142
3143 spa_config_exit(spa, SCL_CONFIG, FTAG);
3144
3145 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
3146 ddt_stat_t dds;
3147 uint64_t refcnt = zdde->zdde_ref_blocks;
3148 ASSERT(refcnt != 0);
3149
3150 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
3151 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
3152 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
3153 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
3154
3155 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
3156 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
3157 dds.dds_ref_psize = zdde->zdde_ref_psize;
3158 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3159
3160 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3161 &dds, 0);
3162
3163 umem_free(zdde, sizeof (*zdde));
3164 }
3165
3166 avl_destroy(&t);
3167
3168 ddt_histogram_stat(&dds_total, &ddh_total);
3169
3170 (void) printf("Simulated DDT histogram:\n");
3171
3172 zpool_dump_ddt(&dds_total, &ddh_total);
3173
3174 dump_dedup_ratio(&dds_total);
3175 }
3176
3177 static void
3178 dump_zpool(spa_t *spa)
3179 {
3180 dsl_pool_t *dp = spa_get_dsl(spa);
3181 int rc = 0;
3182
3183 if (dump_opt['S']) {
3184 dump_simulated_ddt(spa);
3185 return;
3186 }
3187
3188 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3189 (void) printf("\nCached configuration:\n");
3190 dump_nvlist(spa->spa_config, 8);
3191 }
3192
3193 if (dump_opt['C'])
3194 dump_config(spa);
3195
3196 if (dump_opt['u'])
3197 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3198
3199 if (dump_opt['D'])
3200 dump_all_ddts(spa);
3201
3202 if (dump_opt['d'] > 2 || dump_opt['m'])
3203 dump_metaslabs(spa);
3204 if (dump_opt['M'])
3205 dump_metaslab_groups(spa);
3206
3207 if (dump_opt['d'] || dump_opt['i']) {
3208 dump_dir(dp->dp_meta_objset);
3209 if (dump_opt['d'] >= 3) {
3210 dump_full_bpobj(&spa->spa_deferred_bpobj,
3211 "Deferred frees", 0);
3212 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3213 dump_full_bpobj(
3214 &spa->spa_dsl_pool->dp_free_bpobj,
3215 "Pool snapshot frees", 0);
3216 }
3217
3218 if (spa_feature_is_active(spa,
3219 SPA_FEATURE_ASYNC_DESTROY)) {
3220 dump_bptree(spa->spa_meta_objset,
3221 spa->spa_dsl_pool->dp_bptree_obj,
3222 "Pool dataset frees");
3223 }
3224 dump_dtl(spa->spa_root_vdev, 0);
3225 }
3226 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3227 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3228
3229 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
3230 uint64_t refcount;
3231
3232 if (!(spa_feature_table[f].fi_flags &
3233 ZFEATURE_FLAG_PER_DATASET) ||
3234 !spa_feature_is_enabled(spa, f)) {
3235 ASSERT0(dataset_feature_count[f]);
3236 continue;
3237 }
3238 (void) feature_get_refcount(spa,
3239 &spa_feature_table[f], &refcount);
3240 if (dataset_feature_count[f] != refcount) {
3241 (void) printf("%s feature refcount mismatch: "
3242 "%lld datasets != %lld refcount\n",
3243 spa_feature_table[f].fi_uname,
3244 (longlong_t)dataset_feature_count[f],
3245 (longlong_t)refcount);
3246 rc = 2;
3247 } else {
3248 (void) printf("Verified %s feature refcount "
3249 "of %llu is correct\n",
3250 spa_feature_table[f].fi_uname,
3251 (longlong_t)refcount);
3252 }
3253 }
3254 }
3255 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3256 rc = dump_block_stats(spa);
3257
3258 if (rc == 0)
3259 rc = verify_spacemap_refcounts(spa);
3260
3261 if (dump_opt['s'])
3262 show_pool_stats(spa);
3263
3264 if (dump_opt['h'])
3265 dump_history(spa);
3266
3267 if (rc != 0) {
3268 dump_debug_buffer();
3269 exit(rc);
3270 }
3271 }
3272
3273 #define ZDB_FLAG_CHECKSUM 0x0001
3274 #define ZDB_FLAG_DECOMPRESS 0x0002
3275 #define ZDB_FLAG_BSWAP 0x0004
3276 #define ZDB_FLAG_GBH 0x0008
3277 #define ZDB_FLAG_INDIRECT 0x0010
3278 #define ZDB_FLAG_PHYS 0x0020
3279 #define ZDB_FLAG_RAW 0x0040
3280 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3281
3282 int flagbits[256];
3283
3284 static void
3285 zdb_print_blkptr(blkptr_t *bp, int flags)
3286 {
3287 char blkbuf[BP_SPRINTF_LEN];
3288
3289 if (flags & ZDB_FLAG_BSWAP)
3290 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3291
3292 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3293 (void) printf("%s\n", blkbuf);
3294 }
3295
3296 static void
3297 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3298 {
3299 int i;
3300
3301 for (i = 0; i < nbps; i++)
3302 zdb_print_blkptr(&bp[i], flags);
3303 }
3304
3305 static void
3306 zdb_dump_gbh(void *buf, int flags)
3307 {
3308 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3309 }
3310
3311 static void
3312 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3313 {
3314 if (flags & ZDB_FLAG_BSWAP)
3315 byteswap_uint64_array(buf, size);
3316 (void) write(1, buf, size);
3317 }
3318
3319 static void
3320 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3321 {
3322 uint64_t *d = (uint64_t *)buf;
3323 int nwords = size / sizeof (uint64_t);
3324 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3325 int i, j;
3326 char *hdr, *c;
3327
3328
3329 if (do_bswap)
3330 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3331 else
3332 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3333
3334 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3335
3336 for (i = 0; i < nwords; i += 2) {
3337 (void) printf("%06llx: %016llx %016llx ",
3338 (u_longlong_t)(i * sizeof (uint64_t)),
3339 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3340 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3341
3342 c = (char *)&d[i];
3343 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3344 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3345 (void) printf("\n");
3346 }
3347 }
3348
3349 /*
3350 * There are two acceptable formats:
3351 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3352 * child[.child]* - For example: 0.1.1
3353 *
3354 * The second form can be used to specify arbitrary vdevs anywhere
3355 * in the heirarchy. For example, in a pool with a mirror of
3356 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3357 */
3358 static vdev_t *
3359 zdb_vdev_lookup(vdev_t *vdev, char *path)
3360 {
3361 char *s, *p, *q;
3362 int i;
3363
3364 if (vdev == NULL)
3365 return (NULL);
3366
3367 /* First, assume the x.x.x.x format */
3368 i = (int)strtoul(path, &s, 10);
3369 if (s == path || (s && *s != '.' && *s != '\0'))
3370 goto name;
3371 if (i < 0 || i >= vdev->vdev_children)
3372 return (NULL);
3373
3374 vdev = vdev->vdev_child[i];
3375 if (*s == '\0')
3376 return (vdev);
3377 return (zdb_vdev_lookup(vdev, s+1));
3378
3379 name:
3380 for (i = 0; i < vdev->vdev_children; i++) {
3381 vdev_t *vc = vdev->vdev_child[i];
3382
3383 if (vc->vdev_path == NULL) {
3384 vc = zdb_vdev_lookup(vc, path);
3385 if (vc == NULL)
3386 continue;
3387 else
3388 return (vc);
3389 }
3390
3391 p = strrchr(vc->vdev_path, '/');
3392 p = p ? p + 1 : vc->vdev_path;
3393 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3394
3395 if (strcmp(vc->vdev_path, path) == 0)
3396 return (vc);
3397 if (strcmp(p, path) == 0)
3398 return (vc);
3399 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3400 return (vc);
3401 }
3402
3403 return (NULL);
3404 }
3405
3406 /* ARGSUSED */
3407 static int
3408 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused)
3409 {
3410 return (random_get_pseudo_bytes(buf, len));
3411 }
3412
3413 /*
3414 * Read a block from a pool and print it out. The syntax of the
3415 * block descriptor is:
3416 *
3417 * pool:vdev_specifier:offset:size[:flags]
3418 *
3419 * pool - The name of the pool you wish to read from
3420 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3421 * offset - offset, in hex, in bytes
3422 * size - Amount of data to read, in hex, in bytes
3423 * flags - A string of characters specifying options
3424 * b: Decode a blkptr at given offset within block
3425 * *c: Calculate and display checksums
3426 * d: Decompress data before dumping
3427 * e: Byteswap data before dumping
3428 * g: Display data as a gang block header
3429 * i: Display as an indirect block
3430 * p: Do I/O to physical offset
3431 * r: Dump raw data to stdout
3432 *
3433 * * = not yet implemented
3434 */
3435 static void
3436 zdb_read_block(char *thing, spa_t *spa)
3437 {
3438 blkptr_t blk, *bp = &blk;
3439 dva_t *dva = bp->blk_dva;
3440 int flags = 0;
3441 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3442 zio_t *zio;
3443 vdev_t *vd;
3444 abd_t *pabd;
3445 void *lbuf, *buf;
3446 char *s, *p, *dup, *vdev, *flagstr;
3447 int i, error;
3448
3449 dup = strdup(thing);
3450 s = strtok(dup, ":");
3451 vdev = s ? s : "";
3452 s = strtok(NULL, ":");
3453 offset = strtoull(s ? s : "", NULL, 16);
3454 s = strtok(NULL, ":");
3455 size = strtoull(s ? s : "", NULL, 16);
3456 s = strtok(NULL, ":");
3457 flagstr = s ? s : "";
3458
3459 s = NULL;
3460 if (size == 0)
3461 s = "size must not be zero";
3462 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3463 s = "size must be a multiple of sector size";
3464 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3465 s = "offset must be a multiple of sector size";
3466 if (s) {
3467 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3468 free(dup);
3469 return;
3470 }
3471
3472 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3473 for (i = 0; flagstr[i]; i++) {
3474 int bit = flagbits[(uchar_t)flagstr[i]];
3475
3476 if (bit == 0) {
3477 (void) printf("***Invalid flag: %c\n",
3478 flagstr[i]);
3479 continue;
3480 }
3481 flags |= bit;
3482
3483 /* If it's not something with an argument, keep going */
3484 if ((bit & (ZDB_FLAG_CHECKSUM |
3485 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3486 continue;
3487
3488 p = &flagstr[i + 1];
3489 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3490 blkptr_offset = strtoull(p, &p, 16);
3491 if (*p != ':' && *p != '\0') {
3492 (void) printf("***Invalid flag arg: '%s'\n", s);
3493 free(dup);
3494 return;
3495 }
3496 }
3497 }
3498
3499 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3500 if (vd == NULL) {
3501 (void) printf("***Invalid vdev: %s\n", vdev);
3502 free(dup);
3503 return;
3504 } else {
3505 if (vd->vdev_path)
3506 (void) fprintf(stderr, "Found vdev: %s\n",
3507 vd->vdev_path);
3508 else
3509 (void) fprintf(stderr, "Found vdev type: %s\n",
3510 vd->vdev_ops->vdev_op_type);
3511 }
3512
3513 psize = size;
3514 lsize = size;
3515
3516 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE);
3517 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3518
3519 BP_ZERO(bp);
3520
3521 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3522 DVA_SET_OFFSET(&dva[0], offset);
3523 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3524 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3525
3526 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3527
3528 BP_SET_LSIZE(bp, lsize);
3529 BP_SET_PSIZE(bp, psize);
3530 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3531 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3532 BP_SET_TYPE(bp, DMU_OT_NONE);
3533 BP_SET_LEVEL(bp, 0);
3534 BP_SET_DEDUP(bp, 0);
3535 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3536
3537 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3538 zio = zio_root(spa, NULL, NULL, 0);
3539
3540 if (vd == vd->vdev_top) {
3541 /*
3542 * Treat this as a normal block read.
3543 */
3544 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
3545 ZIO_PRIORITY_SYNC_READ,
3546 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3547 } else {
3548 /*
3549 * Treat this as a vdev child I/O.
3550 */
3551 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
3552 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3553 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3554 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3555 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3556 }
3557
3558 error = zio_wait(zio);
3559 spa_config_exit(spa, SCL_STATE, FTAG);
3560
3561 if (error) {
3562 (void) printf("Read of %s failed, error: %d\n", thing, error);
3563 goto out;
3564 }
3565
3566 if (flags & ZDB_FLAG_DECOMPRESS) {
3567 /*
3568 * We don't know how the data was compressed, so just try
3569 * every decompress function at every inflated blocksize.
3570 */
3571 enum zio_compress c;
3572 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3573 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3574
3575 abd_copy_to_buf(pbuf2, pabd, psize);
3576
3577 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize,
3578 random_get_pseudo_bytes_cb, NULL));
3579
3580 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3581 SPA_MAXBLOCKSIZE - psize));
3582
3583 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3584 lsize -= SPA_MINBLOCKSIZE) {
3585 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3586 if (zio_decompress_data(c, pabd,
3587 lbuf, psize, lsize) == 0 &&
3588 zio_decompress_data_buf(c, pbuf2,
3589 lbuf2, psize, lsize) == 0 &&
3590 bcmp(lbuf, lbuf2, lsize) == 0)
3591 break;
3592 }
3593 if (c != ZIO_COMPRESS_FUNCTIONS)
3594 break;
3595 lsize -= SPA_MINBLOCKSIZE;
3596 }
3597
3598 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3599 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3600
3601 if (lsize <= psize) {
3602 (void) printf("Decompress of %s failed\n", thing);
3603 goto out;
3604 }
3605 buf = lbuf;
3606 size = lsize;
3607 } else {
3608 buf = abd_to_buf(pabd);
3609 size = psize;
3610 }
3611
3612 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3613 zdb_print_blkptr((blkptr_t *)(void *)
3614 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3615 else if (flags & ZDB_FLAG_RAW)
3616 zdb_dump_block_raw(buf, size, flags);
3617 else if (flags & ZDB_FLAG_INDIRECT)
3618 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3619 flags);
3620 else if (flags & ZDB_FLAG_GBH)
3621 zdb_dump_gbh(buf, flags);
3622 else
3623 zdb_dump_block(thing, buf, size, flags);
3624
3625 out:
3626 abd_free(pabd);
3627 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3628 free(dup);
3629 }
3630
3631 static boolean_t
3632 pool_match(nvlist_t *cfg, char *tgt)
3633 {
3634 uint64_t v, guid = strtoull(tgt, NULL, 0);
3635 char *s;
3636
3637 if (guid != 0) {
3638 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3639 return (v == guid);
3640 } else {
3641 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3642 return (strcmp(s, tgt) == 0);
3643 }
3644 return (B_FALSE);
3645 }
3646
3647 static char *
3648 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3649 {
3650 nvlist_t *pools;
3651 nvlist_t *match = NULL;
3652 char *name = NULL;
3653 char *sepp = NULL;
3654 char sep = '\0';
3655 int count = 0;
3656 importargs_t args = { 0 };
3657
3658 args.paths = dirc;
3659 args.path = dirv;
3660 args.can_be_active = B_TRUE;
3661
3662 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3663 sep = *sepp;
3664 *sepp = '\0';
3665 }
3666
3667 pools = zpool_search_import(g_zfs, &args);
3668
3669 if (pools != NULL) {
3670 nvpair_t *elem = NULL;
3671 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3672 verify(nvpair_value_nvlist(elem, configp) == 0);
3673 if (pool_match(*configp, *target)) {
3674 count++;
3675 if (match != NULL) {
3676 /* print previously found config */
3677 if (name != NULL) {
3678 (void) printf("%s\n", name);
3679 dump_nvlist(match, 8);
3680 name = NULL;
3681 }
3682 (void) printf("%s\n",
3683 nvpair_name(elem));
3684 dump_nvlist(*configp, 8);
3685 } else {
3686 match = *configp;
3687 name = nvpair_name(elem);
3688 }
3689 }
3690 }
3691 }
3692 if (count > 1)
3693 (void) fatal("\tMatched %d pools - use pool GUID "
3694 "instead of pool name or \n"
3695 "\tpool name part of a dataset name to select pool", count);
3696
3697 if (sepp)
3698 *sepp = sep;
3699 /*
3700 * If pool GUID was specified for pool id, replace it with pool name
3701 */
3702 if (name && (strstr(*target, name) != *target)) {
3703 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3704
3705 *target = umem_alloc(sz, UMEM_NOFAIL);
3706 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3707 }
3708
3709 *configp = name ? match : NULL;
3710
3711 return (name);
3712 }
3713
3714 int
3715 main(int argc, char **argv)
3716 {
3717 int i, c;
3718 struct rlimit rl = { 1024, 1024 };
3719 spa_t *spa = NULL;
3720 objset_t *os = NULL;
3721 int dump_all = 1;
3722 int verbose = 0;
3723 int error = 0;
3724 char **searchdirs = NULL;
3725 int nsearch = 0;
3726 char *target;
3727 nvlist_t *policy = NULL;
3728 uint64_t max_txg = UINT64_MAX;
3729 int flags = ZFS_IMPORT_MISSING_LOG;
3730 int rewind = ZPOOL_NEVER_REWIND;
3731 char *spa_config_path_env;
3732 boolean_t target_is_spa = B_TRUE;
3733
3734 (void) setrlimit(RLIMIT_NOFILE, &rl);
3735 (void) enable_extended_FILE_stdio(-1, -1);
3736
3737 dprintf_setup(&argc, argv);
3738
3739 /*
3740 * If there is an environment variable SPA_CONFIG_PATH it overrides
3741 * default spa_config_path setting. If -U flag is specified it will
3742 * override this environment variable settings once again.
3743 */
3744 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3745 if (spa_config_path_env != NULL)
3746 spa_config_path = spa_config_path_env;
3747
3748 while ((c = getopt(argc, argv,
3749 "AbcCdDeFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
3750 switch (c) {
3751 case 'b':
3752 case 'c':
3753 case 'C':
3754 case 'd':
3755 case 'D':
3756 case 'G':
3757 case 'h':
3758 case 'i':
3759 case 'l':
3760 case 'm':
3761 case 'M':
3762 case 'O':
3763 case 'R':
3764 case 's':
3765 case 'S':
3766 case 'u':
3767 dump_opt[c]++;
3768 dump_all = 0;
3769 break;
3770 case 'A':
3771 case 'e':
3772 case 'F':
3773 case 'L':
3774 case 'P':
3775 case 'q':
3776 case 'X':
3777 dump_opt[c]++;
3778 break;
3779 /* NB: Sort single match options below. */
3780 case 'I':
3781 max_inflight = strtoull(optarg, NULL, 0);
3782 if (max_inflight == 0) {
3783 (void) fprintf(stderr, "maximum number "
3784 "of inflight I/Os must be greater "
3785 "than 0\n");
3786 usage();
3787 }
3788 break;
3789 case 'o':
3790 error = set_global_var(optarg);
3791 if (error != 0)
3792 usage();
3793 break;
3794 case 'p':
3795 if (searchdirs == NULL) {
3796 searchdirs = umem_alloc(sizeof (char *),
3797 UMEM_NOFAIL);
3798 } else {
3799 char **tmp = umem_alloc((nsearch + 1) *
3800 sizeof (char *), UMEM_NOFAIL);
3801 bcopy(searchdirs, tmp, nsearch *
3802 sizeof (char *));
3803 umem_free(searchdirs,
3804 nsearch * sizeof (char *));
3805 searchdirs = tmp;
3806 }
3807 searchdirs[nsearch++] = optarg;
3808 break;
3809 case 't':
3810 max_txg = strtoull(optarg, NULL, 0);
3811 if (max_txg < TXG_INITIAL) {
3812 (void) fprintf(stderr, "incorrect txg "
3813 "specified: %s\n", optarg);
3814 usage();
3815 }
3816 break;
3817 case 'U':
3818 spa_config_path = optarg;
3819 break;
3820 case 'v':
3821 verbose++;
3822 break;
3823 case 'V':
3824 flags = ZFS_IMPORT_VERBATIM;
3825 break;
3826 case 'x':
3827 vn_dumpdir = optarg;
3828 break;
3829 default:
3830 usage();
3831 break;
3832 }
3833 }
3834
3835 if (!dump_opt['e'] && searchdirs != NULL) {
3836 (void) fprintf(stderr, "-p option requires use of -e\n");
3837 usage();
3838 }
3839
3840 /*
3841 * ZDB does not typically re-read blocks; therefore limit the ARC
3842 * to 256 MB, which can be used entirely for metadata.
3843 */
3844 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
3845
3846 /*
3847 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
3848 * "zdb -b" uses traversal prefetch which uses async reads.
3849 * For good performance, let several of them be active at once.
3850 */
3851 zfs_vdev_async_read_max_active = 10;
3852
3853 /*
3854 * Disable reference tracking for better performance.
3855 */
3856 reference_tracking_enable = B_FALSE;
3857
3858 kernel_init(FREAD);
3859 g_zfs = libzfs_init();
3860 ASSERT(g_zfs != NULL);
3861
3862 if (dump_all)
3863 verbose = MAX(verbose, 1);
3864
3865 for (c = 0; c < 256; c++) {
3866 if (dump_all && strchr("AeFlLOPRSX", c) == NULL)
3867 dump_opt[c] = 1;
3868 if (dump_opt[c])
3869 dump_opt[c] += verbose;
3870 }
3871
3872 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3873 zfs_recover = (dump_opt['A'] > 1);
3874
3875 argc -= optind;
3876 argv += optind;
3877
3878 if (argc < 2 && dump_opt['R'])
3879 usage();
3880 if (argc < 1) {
3881 if (!dump_opt['e'] && dump_opt['C']) {
3882 dump_cachefile(spa_config_path);
3883 return (0);
3884 }
3885 usage();
3886 }
3887
3888 if (dump_opt['l'])
3889 return (dump_label(argv[0]));
3890
3891 if (dump_opt['O']) {
3892 if (argc != 2)
3893 usage();
3894 dump_opt['v'] = verbose + 3;
3895 return (dump_path(argv[0], argv[1]));
3896 }
3897
3898 if (dump_opt['X'] || dump_opt['F'])
3899 rewind = ZPOOL_DO_REWIND |
3900 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3901
3902 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3903 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3904 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3905 fatal("internal error: %s", strerror(ENOMEM));
3906
3907 error = 0;
3908 target = argv[0];
3909
3910 if (dump_opt['e']) {
3911 nvlist_t *cfg = NULL;
3912 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3913
3914 error = ENOENT;
3915 if (name) {
3916 if (dump_opt['C'] > 1) {
3917 (void) printf("\nConfiguration for import:\n");
3918 dump_nvlist(cfg, 8);
3919 }
3920 if (nvlist_add_nvlist(cfg,
3921 ZPOOL_REWIND_POLICY, policy) != 0) {
3922 fatal("can't open '%s': %s",
3923 target, strerror(ENOMEM));
3924 }
3925 error = spa_import(name, cfg, NULL, flags);
3926 }
3927 }
3928
3929 if (strpbrk(target, "/@") != NULL) {
3930 size_t targetlen;
3931
3932 target_is_spa = B_FALSE;
3933 /*
3934 * Remove any trailing slash. Later code would get confused
3935 * by it, but we want to allow it so that "pool/" can
3936 * indicate that we want to dump the topmost filesystem,
3937 * rather than the whole pool.
3938 */
3939 targetlen = strlen(target);
3940 if (targetlen != 0 && target[targetlen - 1] == '/')
3941 target[targetlen - 1] = '\0';
3942 }
3943
3944 if (error == 0) {
3945 if (target_is_spa || dump_opt['R']) {
3946 error = spa_open_rewind(target, &spa, FTAG, policy,
3947 NULL);
3948 if (error) {
3949 /*
3950 * If we're missing the log device then
3951 * try opening the pool after clearing the
3952 * log state.
3953 */
3954 mutex_enter(&spa_namespace_lock);
3955 if ((spa = spa_lookup(target)) != NULL &&
3956 spa->spa_log_state == SPA_LOG_MISSING) {
3957 spa->spa_log_state = SPA_LOG_CLEAR;
3958 error = 0;
3959 }
3960 mutex_exit(&spa_namespace_lock);
3961
3962 if (!error) {
3963 error = spa_open_rewind(target, &spa,
3964 FTAG, policy, NULL);
3965 }
3966 }
3967 } else {
3968 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
3969 }
3970 }
3971 nvlist_free(policy);
3972
3973 if (error)
3974 fatal("can't open '%s': %s", target, strerror(error));
3975
3976 argv++;
3977 argc--;
3978 if (!dump_opt['R']) {
3979 if (argc > 0) {
3980 zopt_objects = argc;
3981 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3982 for (i = 0; i < zopt_objects; i++) {
3983 errno = 0;
3984 zopt_object[i] = strtoull(argv[i], NULL, 0);
3985 if (zopt_object[i] == 0 && errno != 0)
3986 fatal("bad number %s: %s",
3987 argv[i], strerror(errno));
3988 }
3989 }
3990 if (os != NULL) {
3991 dump_dir(os);
3992 } else if (zopt_objects > 0 && !dump_opt['m']) {
3993 dump_dir(spa->spa_meta_objset);
3994 } else {
3995 dump_zpool(spa);
3996 }
3997 } else {
3998 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3999 flagbits['c'] = ZDB_FLAG_CHECKSUM;
4000 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
4001 flagbits['e'] = ZDB_FLAG_BSWAP;
4002 flagbits['g'] = ZDB_FLAG_GBH;
4003 flagbits['i'] = ZDB_FLAG_INDIRECT;
4004 flagbits['p'] = ZDB_FLAG_PHYS;
4005 flagbits['r'] = ZDB_FLAG_RAW;
4006
4007 for (i = 0; i < argc; i++)
4008 zdb_read_block(argv[i], spa);
4009 }
4010
4011 if (os != NULL)
4012 close_objset(os, FTAG);
4013 else
4014 spa_close(spa, FTAG);
4015
4016 fuid_table_destroy();
4017
4018 dump_debug_buffer();
4019
4020 libzfs_fini(g_zfs);
4021 kernel_fini();
4022
4023 return (0);
4024 }
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