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Force fault a vdev with 'zpool offline -f'
[zfs.git] / cmd / zdb / zdb.c
blob6c4071060377d39327a342f329992184bd8af70d
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 2016 Nexenta Systems, Inc.
27 * Copyright (c) 2017 Lawrence Livermore National Security, LLC.
28 * Copyright (c) 2015, 2017, Intel Corporation.
29 */
30
31 #include <stdio.h>
32 #include <unistd.h>
33 #include <stdio_ext.h>
34 #include <stdlib.h>
35 #include <ctype.h>
36 #include <sys/zfs_context.h>
37 #include <sys/spa.h>
38 #include <sys/spa_impl.h>
39 #include <sys/dmu.h>
40 #include <sys/zap.h>
41 #include <sys/fs/zfs.h>
42 #include <sys/zfs_znode.h>
43 #include <sys/zfs_sa.h>
44 #include <sys/sa.h>
45 #include <sys/sa_impl.h>
46 #include <sys/vdev.h>
47 #include <sys/vdev_impl.h>
48 #include <sys/metaslab_impl.h>
49 #include <sys/dmu_objset.h>
50 #include <sys/dsl_dir.h>
51 #include <sys/dsl_dataset.h>
52 #include <sys/dsl_pool.h>
53 #include <sys/dbuf.h>
54 #include <sys/zil.h>
55 #include <sys/zil_impl.h>
56 #include <sys/stat.h>
57 #include <sys/resource.h>
58 #include <sys/dmu_traverse.h>
59 #include <sys/zio_checksum.h>
60 #include <sys/zio_compress.h>
61 #include <sys/zfs_fuid.h>
62 #include <sys/arc.h>
63 #include <sys/ddt.h>
64 #include <sys/zfeature.h>
65 #include <sys/abd.h>
66 #include <zfs_comutil.h>
67 #include <libzfs.h>
68
69 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
70 zio_compress_table[(idx)].ci_name : "UNKNOWN")
71 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
72 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
76
77 static char *
78 zdb_ot_name(dmu_object_type_t type)
79 {
80 if (type < DMU_OT_NUMTYPES)
81 return (dmu_ot[type].ot_name);
82 else if ((type & DMU_OT_NEWTYPE) &&
83 ((type & DMU_OT_BYTESWAP_MASK) < DMU_BSWAP_NUMFUNCS))
84 return (dmu_ot_byteswap[type & DMU_OT_BYTESWAP_MASK].ob_name);
85 else
86 return ("UNKNOWN");
87 }
88
89 extern int reference_tracking_enable;
90 extern int zfs_recover;
91 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
92 extern int zfs_vdev_async_read_max_active;
93
94 const char cmdname[] = "zdb";
95 uint8_t dump_opt[256];
96
97 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
98
99 extern void dump_intent_log(zilog_t *);
100 uint64_t *zopt_object = NULL;
101 int zopt_objects = 0;
102 libzfs_handle_t *g_zfs;
103 uint64_t max_inflight = 1000;
104
105 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
106
107 /*
108 * These libumem hooks provide a reasonable set of defaults for the allocator's
109 * debugging facilities.
110 */
111 const char *
112 _umem_debug_init(void)
113 {
114 return ("default,verbose"); /* $UMEM_DEBUG setting */
115 }
116
117 const char *
118 _umem_logging_init(void)
119 {
120 return ("fail,contents"); /* $UMEM_LOGGING setting */
121 }
122
123 static void
124 usage(void)
125 {
126 (void) fprintf(stderr,
127 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] "
128 "[-I <inflight I/Os>]\n"
129 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
130 "\t\t[<poolname> [<object> ...]]\n"
131 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> "
132 "[<object> ...]\n"
133 "\t%s -C [-A] [-U <cache>]\n"
134 "\t%s -l [-Aqu] <device>\n"
135 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
136 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
137 "\t%s -O <dataset> <path>\n"
138 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
139 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
140 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
141 "<poolname>\n\n",
142 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
143 cmdname);
144
145 (void) fprintf(stderr, " Dataset name must include at least one "
146 "separator character '/' or '@'\n");
147 (void) fprintf(stderr, " If dataset name is specified, only that "
148 "dataset is dumped\n");
149 (void) fprintf(stderr, " If object numbers are specified, only "
150 "those objects are dumped\n\n");
151 (void) fprintf(stderr, " Options to control amount of output:\n");
152 (void) fprintf(stderr, " -b block statistics\n");
153 (void) fprintf(stderr, " -c checksum all metadata (twice for "
154 "all data) blocks\n");
155 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
156 (void) fprintf(stderr, " -d dataset(s)\n");
157 (void) fprintf(stderr, " -D dedup statistics\n");
158 (void) fprintf(stderr, " -h pool history\n");
159 (void) fprintf(stderr, " -i intent logs\n");
160 (void) fprintf(stderr, " -l read label contents\n");
161 (void) fprintf(stderr, " -L disable leak tracking (do not "
162 "load spacemaps)\n");
163 (void) fprintf(stderr, " -m metaslabs\n");
164 (void) fprintf(stderr, " -M metaslab groups\n");
165 (void) fprintf(stderr, " -O perform object lookups by path\n");
166 (void) fprintf(stderr, " -R read and display block from a "
167 "device\n");
168 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
169 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
170 (void) fprintf(stderr, " -v verbose (applies to all "
171 "others)\n\n");
172 (void) fprintf(stderr, " Below options are intended for use "
173 "with other options:\n");
174 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
175 "panic recovery (-AA) or both (-AAA)\n");
176 (void) fprintf(stderr, " -e pool is exported/destroyed/"
177 "has altroot/not in a cachefile\n");
178 (void) fprintf(stderr, " -F attempt automatic rewind within "
179 "safe range of transaction groups\n");
180 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
181 "exiting\n");
182 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
183 "specify the maximum number of\n "
184 "checksumming I/Os [default is 200]\n");
185 (void) fprintf(stderr, " -o <variable>=<value> set global "
186 "variable to an unsigned 32-bit integer\n");
187 (void) fprintf(stderr, " -p <path> -- use one or more with "
188 "-e to specify path to vdev dir\n");
189 (void) fprintf(stderr, " -P print numbers in parseable form\n");
190 (void) fprintf(stderr, " -q don't print label contents\n");
191 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
192 "searching for uberblocks\n");
193 (void) fprintf(stderr, " -u uberblock\n");
194 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
195 "cachefile\n");
196 (void) fprintf(stderr, " -V do verbatim import\n");
197 (void) fprintf(stderr, " -x <dumpdir> -- "
198 "dump all read blocks into specified directory\n");
199 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
200 "work with dataset)\n");
201 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
202 "to make only that option verbose\n");
203 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
204 exit(1);
205 }
206
207 static void
208 dump_debug_buffer(void)
209 {
210 if (dump_opt['G']) {
211 (void) printf("\n");
212 zfs_dbgmsg_print("zdb");
213 }
214 }
215
216 /*
217 * Called for usage errors that are discovered after a call to spa_open(),
218 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
219 */
220
221 static void
222 fatal(const char *fmt, ...)
223 {
224 va_list ap;
225
226 va_start(ap, fmt);
227 (void) fprintf(stderr, "%s: ", cmdname);
228 (void) vfprintf(stderr, fmt, ap);
229 va_end(ap);
230 (void) fprintf(stderr, "\n");
231
232 dump_debug_buffer();
233
234 exit(1);
235 }
236
237 /* ARGSUSED */
238 static void
239 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
240 {
241 nvlist_t *nv;
242 size_t nvsize = *(uint64_t *)data;
243 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
244
245 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
246
247 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
248
249 umem_free(packed, nvsize);
250
251 dump_nvlist(nv, 8);
252
253 nvlist_free(nv);
254 }
255
256 /* ARGSUSED */
257 static void
258 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
259 {
260 spa_history_phys_t *shp = data;
261
262 if (shp == NULL)
263 return;
264
265 (void) printf("\t\tpool_create_len = %llu\n",
266 (u_longlong_t)shp->sh_pool_create_len);
267 (void) printf("\t\tphys_max_off = %llu\n",
268 (u_longlong_t)shp->sh_phys_max_off);
269 (void) printf("\t\tbof = %llu\n",
270 (u_longlong_t)shp->sh_bof);
271 (void) printf("\t\teof = %llu\n",
272 (u_longlong_t)shp->sh_eof);
273 (void) printf("\t\trecords_lost = %llu\n",
274 (u_longlong_t)shp->sh_records_lost);
275 }
276
277 static void
278 zdb_nicenum(uint64_t num, char *buf)
279 {
280 if (dump_opt['P'])
281 (void) sprintf(buf, "%llu", (longlong_t)num);
282 else
283 nicenum(num, buf);
284 }
285
286 const char histo_stars[] = "****************************************";
287 const int histo_width = sizeof (histo_stars) - 1;
288
289 static void
290 dump_histogram(const uint64_t *histo, int size, int offset)
291 {
292 int i;
293 int minidx = size - 1;
294 int maxidx = 0;
295 uint64_t max = 0;
296
297 for (i = 0; i < size; i++) {
298 if (histo[i] > max)
299 max = histo[i];
300 if (histo[i] > 0 && i > maxidx)
301 maxidx = i;
302 if (histo[i] > 0 && i < minidx)
303 minidx = i;
304 }
305
306 if (max < histo_width)
307 max = histo_width;
308
309 for (i = minidx; i <= maxidx; i++) {
310 (void) printf("\t\t\t%3u: %6llu %s\n",
311 i + offset, (u_longlong_t)histo[i],
312 &histo_stars[(max - histo[i]) * histo_width / max]);
313 }
314 }
315
316 static void
317 dump_zap_stats(objset_t *os, uint64_t object)
318 {
319 int error;
320 zap_stats_t zs;
321
322 error = zap_get_stats(os, object, &zs);
323 if (error)
324 return;
325
326 if (zs.zs_ptrtbl_len == 0) {
327 ASSERT(zs.zs_num_blocks == 1);
328 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
329 (u_longlong_t)zs.zs_blocksize,
330 (u_longlong_t)zs.zs_num_entries);
331 return;
332 }
333
334 (void) printf("\tFat ZAP stats:\n");
335
336 (void) printf("\t\tPointer table:\n");
337 (void) printf("\t\t\t%llu elements\n",
338 (u_longlong_t)zs.zs_ptrtbl_len);
339 (void) printf("\t\t\tzt_blk: %llu\n",
340 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
341 (void) printf("\t\t\tzt_numblks: %llu\n",
342 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
343 (void) printf("\t\t\tzt_shift: %llu\n",
344 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
345 (void) printf("\t\t\tzt_blks_copied: %llu\n",
346 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
347 (void) printf("\t\t\tzt_nextblk: %llu\n",
348 (u_longlong_t)zs.zs_ptrtbl_nextblk);
349
350 (void) printf("\t\tZAP entries: %llu\n",
351 (u_longlong_t)zs.zs_num_entries);
352 (void) printf("\t\tLeaf blocks: %llu\n",
353 (u_longlong_t)zs.zs_num_leafs);
354 (void) printf("\t\tTotal blocks: %llu\n",
355 (u_longlong_t)zs.zs_num_blocks);
356 (void) printf("\t\tzap_block_type: 0x%llx\n",
357 (u_longlong_t)zs.zs_block_type);
358 (void) printf("\t\tzap_magic: 0x%llx\n",
359 (u_longlong_t)zs.zs_magic);
360 (void) printf("\t\tzap_salt: 0x%llx\n",
361 (u_longlong_t)zs.zs_salt);
362
363 (void) printf("\t\tLeafs with 2^n pointers:\n");
364 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
365
366 (void) printf("\t\tBlocks with n*5 entries:\n");
367 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
368
369 (void) printf("\t\tBlocks n/10 full:\n");
370 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
371
372 (void) printf("\t\tEntries with n chunks:\n");
373 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
374
375 (void) printf("\t\tBuckets with n entries:\n");
376 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
377 }
378
379 /*ARGSUSED*/
380 static void
381 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
382 {
383 }
384
385 /*ARGSUSED*/
386 static void
387 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
388 {
389 (void) printf("\tUNKNOWN OBJECT TYPE\n");
390 }
391
392 /*ARGSUSED*/
393 void
394 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
395 {
396 }
397
398 /*ARGSUSED*/
399 static void
400 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
401 {
402 }
403
404 /*ARGSUSED*/
405 static void
406 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
407 {
408 zap_cursor_t zc;
409 zap_attribute_t attr;
410 void *prop;
411 int i;
412
413 dump_zap_stats(os, object);
414 (void) printf("\n");
415
416 for (zap_cursor_init(&zc, os, object);
417 zap_cursor_retrieve(&zc, &attr) == 0;
418 zap_cursor_advance(&zc)) {
419 (void) printf("\t\t%s = ", attr.za_name);
420 if (attr.za_num_integers == 0) {
421 (void) printf("\n");
422 continue;
423 }
424 prop = umem_zalloc(attr.za_num_integers *
425 attr.za_integer_length, UMEM_NOFAIL);
426 (void) zap_lookup(os, object, attr.za_name,
427 attr.za_integer_length, attr.za_num_integers, prop);
428 if (attr.za_integer_length == 1) {
429 (void) printf("%s", (char *)prop);
430 } else {
431 for (i = 0; i < attr.za_num_integers; i++) {
432 switch (attr.za_integer_length) {
433 case 2:
434 (void) printf("%u ",
435 ((uint16_t *)prop)[i]);
436 break;
437 case 4:
438 (void) printf("%u ",
439 ((uint32_t *)prop)[i]);
440 break;
441 case 8:
442 (void) printf("%lld ",
443 (u_longlong_t)((int64_t *)prop)[i]);
444 break;
445 }
446 }
447 }
448 (void) printf("\n");
449 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
450 }
451 zap_cursor_fini(&zc);
452 }
453
454 static void
455 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
456 {
457 bpobj_phys_t *bpop = data;
458 uint64_t i;
459 char bytes[32], comp[32], uncomp[32];
460
461 if (bpop == NULL)
462 return;
463
464 zdb_nicenum(bpop->bpo_bytes, bytes);
465 zdb_nicenum(bpop->bpo_comp, comp);
466 zdb_nicenum(bpop->bpo_uncomp, uncomp);
467
468 (void) printf("\t\tnum_blkptrs = %llu\n",
469 (u_longlong_t)bpop->bpo_num_blkptrs);
470 (void) printf("\t\tbytes = %s\n", bytes);
471 if (size >= BPOBJ_SIZE_V1) {
472 (void) printf("\t\tcomp = %s\n", comp);
473 (void) printf("\t\tuncomp = %s\n", uncomp);
474 }
475 if (size >= sizeof (*bpop)) {
476 (void) printf("\t\tsubobjs = %llu\n",
477 (u_longlong_t)bpop->bpo_subobjs);
478 (void) printf("\t\tnum_subobjs = %llu\n",
479 (u_longlong_t)bpop->bpo_num_subobjs);
480 }
481
482 if (dump_opt['d'] < 5)
483 return;
484
485 for (i = 0; i < bpop->bpo_num_blkptrs; i++) {
486 char blkbuf[BP_SPRINTF_LEN];
487 blkptr_t bp;
488
489 int err = dmu_read(os, object,
490 i * sizeof (bp), sizeof (bp), &bp, 0);
491 if (err != 0) {
492 (void) printf("got error %u from dmu_read\n", err);
493 break;
494 }
495 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
496 (void) printf("\t%s\n", blkbuf);
497 }
498 }
499
500 /* ARGSUSED */
501 static void
502 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
503 {
504 dmu_object_info_t doi;
505 int64_t i;
506
507 VERIFY0(dmu_object_info(os, object, &doi));
508 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
509
510 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
511 if (err != 0) {
512 (void) printf("got error %u from dmu_read\n", err);
513 kmem_free(subobjs, doi.doi_max_offset);
514 return;
515 }
516
517 int64_t last_nonzero = -1;
518 for (i = 0; i < doi.doi_max_offset / 8; i++) {
519 if (subobjs[i] != 0)
520 last_nonzero = i;
521 }
522
523 for (i = 0; i <= last_nonzero; i++) {
524 (void) printf("\t%llu\n", (u_longlong_t)subobjs[i]);
525 }
526 kmem_free(subobjs, doi.doi_max_offset);
527 }
528
529 /*ARGSUSED*/
530 static void
531 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
532 {
533 dump_zap_stats(os, object);
534 /* contents are printed elsewhere, properly decoded */
535 }
536
537 /*ARGSUSED*/
538 static void
539 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
540 {
541 zap_cursor_t zc;
542 zap_attribute_t attr;
543
544 dump_zap_stats(os, object);
545 (void) printf("\n");
546
547 for (zap_cursor_init(&zc, os, object);
548 zap_cursor_retrieve(&zc, &attr) == 0;
549 zap_cursor_advance(&zc)) {
550 (void) printf("\t\t%s = ", attr.za_name);
551 if (attr.za_num_integers == 0) {
552 (void) printf("\n");
553 continue;
554 }
555 (void) printf(" %llx : [%d:%d:%d]\n",
556 (u_longlong_t)attr.za_first_integer,
557 (int)ATTR_LENGTH(attr.za_first_integer),
558 (int)ATTR_BSWAP(attr.za_first_integer),
559 (int)ATTR_NUM(attr.za_first_integer));
560 }
561 zap_cursor_fini(&zc);
562 }
563
564 /*ARGSUSED*/
565 static void
566 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
567 {
568 zap_cursor_t zc;
569 zap_attribute_t attr;
570 uint16_t *layout_attrs;
571 int i;
572
573 dump_zap_stats(os, object);
574 (void) printf("\n");
575
576 for (zap_cursor_init(&zc, os, object);
577 zap_cursor_retrieve(&zc, &attr) == 0;
578 zap_cursor_advance(&zc)) {
579 (void) printf("\t\t%s = [", attr.za_name);
580 if (attr.za_num_integers == 0) {
581 (void) printf("\n");
582 continue;
583 }
584
585 VERIFY(attr.za_integer_length == 2);
586 layout_attrs = umem_zalloc(attr.za_num_integers *
587 attr.za_integer_length, UMEM_NOFAIL);
588
589 VERIFY(zap_lookup(os, object, attr.za_name,
590 attr.za_integer_length,
591 attr.za_num_integers, layout_attrs) == 0);
592
593 for (i = 0; i != attr.za_num_integers; i++)
594 (void) printf(" %d ", (int)layout_attrs[i]);
595 (void) printf("]\n");
596 umem_free(layout_attrs,
597 attr.za_num_integers * attr.za_integer_length);
598 }
599 zap_cursor_fini(&zc);
600 }
601
602 /*ARGSUSED*/
603 static void
604 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
605 {
606 zap_cursor_t zc;
607 zap_attribute_t attr;
608 const char *typenames[] = {
609 /* 0 */ "not specified",
610 /* 1 */ "FIFO",
611 /* 2 */ "Character Device",
612 /* 3 */ "3 (invalid)",
613 /* 4 */ "Directory",
614 /* 5 */ "5 (invalid)",
615 /* 6 */ "Block Device",
616 /* 7 */ "7 (invalid)",
617 /* 8 */ "Regular File",
618 /* 9 */ "9 (invalid)",
619 /* 10 */ "Symbolic Link",
620 /* 11 */ "11 (invalid)",
621 /* 12 */ "Socket",
622 /* 13 */ "Door",
623 /* 14 */ "Event Port",
624 /* 15 */ "15 (invalid)",
625 };
626
627 dump_zap_stats(os, object);
628 (void) printf("\n");
629
630 for (zap_cursor_init(&zc, os, object);
631 zap_cursor_retrieve(&zc, &attr) == 0;
632 zap_cursor_advance(&zc)) {
633 (void) printf("\t\t%s = %lld (type: %s)\n",
634 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
635 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
636 }
637 zap_cursor_fini(&zc);
638 }
639
640 int
641 get_dtl_refcount(vdev_t *vd)
642 {
643 int refcount = 0;
644 int c;
645
646 if (vd->vdev_ops->vdev_op_leaf) {
647 space_map_t *sm = vd->vdev_dtl_sm;
648
649 if (sm != NULL &&
650 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
651 return (1);
652 return (0);
653 }
654
655 for (c = 0; c < vd->vdev_children; c++)
656 refcount += get_dtl_refcount(vd->vdev_child[c]);
657 return (refcount);
658 }
659
660 int
661 get_metaslab_refcount(vdev_t *vd)
662 {
663 int refcount = 0;
664 int c, m;
665
666 if (vd->vdev_top == vd && !vd->vdev_removing) {
667 for (m = 0; m < vd->vdev_ms_count; m++) {
668 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
669
670 if (sm != NULL &&
671 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
672 refcount++;
673 }
674 }
675 for (c = 0; c < vd->vdev_children; c++)
676 refcount += get_metaslab_refcount(vd->vdev_child[c]);
677
678 return (refcount);
679 }
680
681 static int
682 verify_spacemap_refcounts(spa_t *spa)
683 {
684 uint64_t expected_refcount = 0;
685 uint64_t actual_refcount;
686
687 (void) feature_get_refcount(spa,
688 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
689 &expected_refcount);
690 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
691 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
692
693 if (expected_refcount != actual_refcount) {
694 (void) printf("space map refcount mismatch: expected %lld != "
695 "actual %lld\n",
696 (longlong_t)expected_refcount,
697 (longlong_t)actual_refcount);
698 return (2);
699 }
700 return (0);
701 }
702
703 static void
704 dump_spacemap(objset_t *os, space_map_t *sm)
705 {
706 uint64_t alloc, offset, entry;
707 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
708 "INVALID", "INVALID", "INVALID", "INVALID" };
709
710 if (sm == NULL)
711 return;
712
713 /*
714 * Print out the freelist entries in both encoded and decoded form.
715 */
716 alloc = 0;
717 for (offset = 0; offset < space_map_length(sm);
718 offset += sizeof (entry)) {
719 uint8_t mapshift = sm->sm_shift;
720
721 VERIFY0(dmu_read(os, space_map_object(sm), offset,
722 sizeof (entry), &entry, DMU_READ_PREFETCH));
723 if (SM_DEBUG_DECODE(entry)) {
724
725 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
726 (u_longlong_t)(offset / sizeof (entry)),
727 ddata[SM_DEBUG_ACTION_DECODE(entry)],
728 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
729 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
730 } else {
731 (void) printf("\t [%6llu] %c range:"
732 " %010llx-%010llx size: %06llx\n",
733 (u_longlong_t)(offset / sizeof (entry)),
734 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
735 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
736 mapshift) + sm->sm_start),
737 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
738 mapshift) + sm->sm_start +
739 (SM_RUN_DECODE(entry) << mapshift)),
740 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
741 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
742 alloc += SM_RUN_DECODE(entry) << mapshift;
743 else
744 alloc -= SM_RUN_DECODE(entry) << mapshift;
745 }
746 }
747 if (alloc != space_map_allocated(sm)) {
748 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
749 "with space map summary (%llu)\n",
750 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
751 }
752 }
753
754 static void
755 dump_metaslab_stats(metaslab_t *msp)
756 {
757 char maxbuf[32];
758 range_tree_t *rt = msp->ms_tree;
759 avl_tree_t *t = &msp->ms_size_tree;
760 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
761
762 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
763
764 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
765 "segments", avl_numnodes(t), "maxsize", maxbuf,
766 "freepct", free_pct);
767 (void) printf("\tIn-memory histogram:\n");
768 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
769 }
770
771 static void
772 dump_metaslab(metaslab_t *msp)
773 {
774 vdev_t *vd = msp->ms_group->mg_vd;
775 spa_t *spa = vd->vdev_spa;
776 space_map_t *sm = msp->ms_sm;
777 char freebuf[32];
778
779 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
780
781 (void) printf(
782 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
783 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
784 (u_longlong_t)space_map_object(sm), freebuf);
785
786 if (dump_opt['m'] > 2 && !dump_opt['L']) {
787 mutex_enter(&msp->ms_lock);
788 metaslab_load_wait(msp);
789 if (!msp->ms_loaded) {
790 VERIFY0(metaslab_load(msp));
791 range_tree_stat_verify(msp->ms_tree);
792 }
793 dump_metaslab_stats(msp);
794 metaslab_unload(msp);
795 mutex_exit(&msp->ms_lock);
796 }
797
798 if (dump_opt['m'] > 1 && sm != NULL &&
799 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
800 /*
801 * The space map histogram represents free space in chunks
802 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
803 */
804 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
805 (u_longlong_t)msp->ms_fragmentation);
806 dump_histogram(sm->sm_phys->smp_histogram,
807 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
808 }
809
810 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
811 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
812
813 mutex_enter(&msp->ms_lock);
814 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
815 mutex_exit(&msp->ms_lock);
816 }
817 }
818
819 static void
820 print_vdev_metaslab_header(vdev_t *vd)
821 {
822 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
823 (u_longlong_t)vd->vdev_id,
824 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
825 "offset", "spacemap", "free");
826 (void) printf("\t%15s %19s %15s %10s\n",
827 "---------------", "-------------------",
828 "---------------", "-------------");
829 }
830
831 static void
832 dump_metaslab_groups(spa_t *spa)
833 {
834 vdev_t *rvd = spa->spa_root_vdev;
835 metaslab_class_t *mc = spa_normal_class(spa);
836 uint64_t fragmentation;
837 int c;
838
839 metaslab_class_histogram_verify(mc);
840
841 for (c = 0; c < rvd->vdev_children; c++) {
842 vdev_t *tvd = rvd->vdev_child[c];
843 metaslab_group_t *mg = tvd->vdev_mg;
844
845 if (mg->mg_class != mc)
846 continue;
847
848 metaslab_group_histogram_verify(mg);
849 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
850
851 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
852 "fragmentation",
853 (u_longlong_t)tvd->vdev_id,
854 (u_longlong_t)tvd->vdev_ms_count);
855 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
856 (void) printf("%3s\n", "-");
857 } else {
858 (void) printf("%3llu%%\n",
859 (u_longlong_t)mg->mg_fragmentation);
860 }
861 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
862 }
863
864 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
865 fragmentation = metaslab_class_fragmentation(mc);
866 if (fragmentation == ZFS_FRAG_INVALID)
867 (void) printf("\t%3s\n", "-");
868 else
869 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
870 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
871 }
872
873 static void
874 dump_metaslabs(spa_t *spa)
875 {
876 vdev_t *vd, *rvd = spa->spa_root_vdev;
877 uint64_t m, c = 0, children = rvd->vdev_children;
878
879 (void) printf("\nMetaslabs:\n");
880
881 if (!dump_opt['d'] && zopt_objects > 0) {
882 c = zopt_object[0];
883
884 if (c >= children)
885 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
886
887 if (zopt_objects > 1) {
888 vd = rvd->vdev_child[c];
889 print_vdev_metaslab_header(vd);
890
891 for (m = 1; m < zopt_objects; m++) {
892 if (zopt_object[m] < vd->vdev_ms_count)
893 dump_metaslab(
894 vd->vdev_ms[zopt_object[m]]);
895 else
896 (void) fprintf(stderr, "bad metaslab "
897 "number %llu\n",
898 (u_longlong_t)zopt_object[m]);
899 }
900 (void) printf("\n");
901 return;
902 }
903 children = c + 1;
904 }
905 for (; c < children; c++) {
906 vd = rvd->vdev_child[c];
907 print_vdev_metaslab_header(vd);
908
909 for (m = 0; m < vd->vdev_ms_count; m++)
910 dump_metaslab(vd->vdev_ms[m]);
911 (void) printf("\n");
912 }
913 }
914
915 static void
916 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
917 {
918 const ddt_phys_t *ddp = dde->dde_phys;
919 const ddt_key_t *ddk = &dde->dde_key;
920 char *types[4] = { "ditto", "single", "double", "triple" };
921 char blkbuf[BP_SPRINTF_LEN];
922 blkptr_t blk;
923 int p;
924
925 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
926 if (ddp->ddp_phys_birth == 0)
927 continue;
928 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
929 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
930 (void) printf("index %llx refcnt %llu %s %s\n",
931 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
932 types[p], blkbuf);
933 }
934 }
935
936 static void
937 dump_dedup_ratio(const ddt_stat_t *dds)
938 {
939 double rL, rP, rD, D, dedup, compress, copies;
940
941 if (dds->dds_blocks == 0)
942 return;
943
944 rL = (double)dds->dds_ref_lsize;
945 rP = (double)dds->dds_ref_psize;
946 rD = (double)dds->dds_ref_dsize;
947 D = (double)dds->dds_dsize;
948
949 dedup = rD / D;
950 compress = rL / rP;
951 copies = rD / rP;
952
953 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
954 "dedup * compress / copies = %.2f\n\n",
955 dedup, compress, copies, dedup * compress / copies);
956 }
957
958 static void
959 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
960 {
961 char name[DDT_NAMELEN];
962 ddt_entry_t dde;
963 uint64_t walk = 0;
964 dmu_object_info_t doi;
965 uint64_t count, dspace, mspace;
966 int error;
967
968 error = ddt_object_info(ddt, type, class, &doi);
969
970 if (error == ENOENT)
971 return;
972 ASSERT(error == 0);
973
974 error = ddt_object_count(ddt, type, class, &count);
975 ASSERT(error == 0);
976 if (count == 0)
977 return;
978
979 dspace = doi.doi_physical_blocks_512 << 9;
980 mspace = doi.doi_fill_count * doi.doi_data_block_size;
981
982 ddt_object_name(ddt, type, class, name);
983
984 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
985 name,
986 (u_longlong_t)count,
987 (u_longlong_t)(dspace / count),
988 (u_longlong_t)(mspace / count));
989
990 if (dump_opt['D'] < 3)
991 return;
992
993 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
994
995 if (dump_opt['D'] < 4)
996 return;
997
998 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
999 return;
1000
1001 (void) printf("%s contents:\n\n", name);
1002
1003 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
1004 dump_dde(ddt, &dde, walk);
1005
1006 ASSERT(error == ENOENT);
1007
1008 (void) printf("\n");
1009 }
1010
1011 static void
1012 dump_all_ddts(spa_t *spa)
1013 {
1014 ddt_histogram_t ddh_total;
1015 ddt_stat_t dds_total;
1016 enum zio_checksum c;
1017 enum ddt_type type;
1018 enum ddt_class class;
1019
1020 bzero(&ddh_total, sizeof (ddt_histogram_t));
1021 bzero(&dds_total, sizeof (ddt_stat_t));
1022
1023 for (c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1024 ddt_t *ddt = spa->spa_ddt[c];
1025 for (type = 0; type < DDT_TYPES; type++) {
1026 for (class = 0; class < DDT_CLASSES;
1027 class++) {
1028 dump_ddt(ddt, type, class);
1029 }
1030 }
1031 }
1032
1033 ddt_get_dedup_stats(spa, &dds_total);
1034
1035 if (dds_total.dds_blocks == 0) {
1036 (void) printf("All DDTs are empty\n");
1037 return;
1038 }
1039
1040 (void) printf("\n");
1041
1042 if (dump_opt['D'] > 1) {
1043 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1044 ddt_get_dedup_histogram(spa, &ddh_total);
1045 zpool_dump_ddt(&dds_total, &ddh_total);
1046 }
1047
1048 dump_dedup_ratio(&dds_total);
1049 }
1050
1051 static void
1052 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1053 {
1054 char *prefix = arg;
1055
1056 (void) printf("%s [%llu,%llu) length %llu\n",
1057 prefix,
1058 (u_longlong_t)start,
1059 (u_longlong_t)(start + size),
1060 (u_longlong_t)(size));
1061 }
1062
1063 static void
1064 dump_dtl(vdev_t *vd, int indent)
1065 {
1066 spa_t *spa = vd->vdev_spa;
1067 boolean_t required;
1068 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
1069 char prefix[256];
1070 int c, t;
1071
1072 spa_vdev_state_enter(spa, SCL_NONE);
1073 required = vdev_dtl_required(vd);
1074 (void) spa_vdev_state_exit(spa, NULL, 0);
1075
1076 if (indent == 0)
1077 (void) printf("\nDirty time logs:\n\n");
1078
1079 (void) printf("\t%*s%s [%s]\n", indent, "",
1080 vd->vdev_path ? vd->vdev_path :
1081 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1082 required ? "DTL-required" : "DTL-expendable");
1083
1084 for (t = 0; t < DTL_TYPES; t++) {
1085 range_tree_t *rt = vd->vdev_dtl[t];
1086 if (range_tree_space(rt) == 0)
1087 continue;
1088 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1089 indent + 2, "", name[t]);
1090 mutex_enter(rt->rt_lock);
1091 range_tree_walk(rt, dump_dtl_seg, prefix);
1092 mutex_exit(rt->rt_lock);
1093 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1094 dump_spacemap(spa->spa_meta_objset,
1095 vd->vdev_dtl_sm);
1096 }
1097
1098 for (c = 0; c < vd->vdev_children; c++)
1099 dump_dtl(vd->vdev_child[c], indent + 4);
1100 }
1101
1102 static void
1103 dump_history(spa_t *spa)
1104 {
1105 nvlist_t **events = NULL;
1106 char *buf;
1107 uint64_t resid, len, off = 0;
1108 uint_t num = 0;
1109 int error;
1110 time_t tsec;
1111 struct tm t;
1112 char tbuf[30];
1113 char internalstr[MAXPATHLEN];
1114 int i;
1115
1116 if ((buf = malloc(SPA_OLD_MAXBLOCKSIZE)) == NULL) {
1117 (void) fprintf(stderr, "%s: unable to allocate I/O buffer\n",
1118 __func__);
1119 return;
1120 }
1121
1122 do {
1123 len = SPA_OLD_MAXBLOCKSIZE;
1124
1125 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1126 (void) fprintf(stderr, "Unable to read history: "
1127 "error %d\n", error);
1128 free(buf);
1129 return;
1130 }
1131
1132 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1133 break;
1134
1135 off -= resid;
1136 } while (len != 0);
1137
1138 (void) printf("\nHistory:\n");
1139 for (i = 0; i < num; i++) {
1140 uint64_t time, txg, ievent;
1141 char *cmd, *intstr;
1142 boolean_t printed = B_FALSE;
1143
1144 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1145 &time) != 0)
1146 goto next;
1147 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1148 &cmd) != 0) {
1149 if (nvlist_lookup_uint64(events[i],
1150 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1151 goto next;
1152 verify(nvlist_lookup_uint64(events[i],
1153 ZPOOL_HIST_TXG, &txg) == 0);
1154 verify(nvlist_lookup_string(events[i],
1155 ZPOOL_HIST_INT_STR, &intstr) == 0);
1156 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1157 goto next;
1158
1159 (void) snprintf(internalstr,
1160 sizeof (internalstr),
1161 "[internal %s txg:%lld] %s",
1162 zfs_history_event_names[ievent],
1163 (longlong_t)txg, intstr);
1164 cmd = internalstr;
1165 }
1166 tsec = time;
1167 (void) localtime_r(&tsec, &t);
1168 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1169 (void) printf("%s %s\n", tbuf, cmd);
1170 printed = B_TRUE;
1171
1172 next:
1173 if (dump_opt['h'] > 1) {
1174 if (!printed)
1175 (void) printf("unrecognized record:\n");
1176 dump_nvlist(events[i], 2);
1177 }
1178 }
1179 free(buf);
1180 }
1181
1182 /*ARGSUSED*/
1183 static void
1184 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1185 {
1186 }
1187
1188 static uint64_t
1189 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1190 const zbookmark_phys_t *zb)
1191 {
1192 if (dnp == NULL) {
1193 ASSERT(zb->zb_level < 0);
1194 if (zb->zb_object == 0)
1195 return (zb->zb_blkid);
1196 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1197 }
1198
1199 ASSERT(zb->zb_level >= 0);
1200
1201 return ((zb->zb_blkid <<
1202 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1203 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1204 }
1205
1206 static void
1207 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1208 {
1209 const dva_t *dva = bp->blk_dva;
1210 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1211 int i;
1212
1213 if (dump_opt['b'] >= 6) {
1214 snprintf_blkptr(blkbuf, buflen, bp);
1215 return;
1216 }
1217
1218 if (BP_IS_EMBEDDED(bp)) {
1219 (void) sprintf(blkbuf,
1220 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1221 (int)BPE_GET_ETYPE(bp),
1222 (u_longlong_t)BPE_GET_LSIZE(bp),
1223 (u_longlong_t)BPE_GET_PSIZE(bp),
1224 (u_longlong_t)bp->blk_birth);
1225 return;
1226 }
1227
1228 blkbuf[0] = '\0';
1229
1230 for (i = 0; i < ndvas; i++)
1231 (void) snprintf(blkbuf + strlen(blkbuf),
1232 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1233 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1234 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1235 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1236
1237 if (BP_IS_HOLE(bp)) {
1238 (void) snprintf(blkbuf + strlen(blkbuf),
1239 buflen - strlen(blkbuf),
1240 "%llxL B=%llu",
1241 (u_longlong_t)BP_GET_LSIZE(bp),
1242 (u_longlong_t)bp->blk_birth);
1243 } else {
1244 (void) snprintf(blkbuf + strlen(blkbuf),
1245 buflen - strlen(blkbuf),
1246 "%llxL/%llxP F=%llu B=%llu/%llu",
1247 (u_longlong_t)BP_GET_LSIZE(bp),
1248 (u_longlong_t)BP_GET_PSIZE(bp),
1249 (u_longlong_t)BP_GET_FILL(bp),
1250 (u_longlong_t)bp->blk_birth,
1251 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1252 }
1253 }
1254
1255 static void
1256 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1257 const dnode_phys_t *dnp)
1258 {
1259 char blkbuf[BP_SPRINTF_LEN];
1260 int l;
1261
1262 if (!BP_IS_EMBEDDED(bp)) {
1263 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1264 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1265 }
1266
1267 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1268
1269 ASSERT(zb->zb_level >= 0);
1270
1271 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1272 if (l == zb->zb_level) {
1273 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1274 } else {
1275 (void) printf(" ");
1276 }
1277 }
1278
1279 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1280 (void) printf("%s\n", blkbuf);
1281 }
1282
1283 static int
1284 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1285 blkptr_t *bp, const zbookmark_phys_t *zb)
1286 {
1287 int err = 0;
1288
1289 if (bp->blk_birth == 0)
1290 return (0);
1291
1292 print_indirect(bp, zb, dnp);
1293
1294 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1295 arc_flags_t flags = ARC_FLAG_WAIT;
1296 int i;
1297 blkptr_t *cbp;
1298 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1299 arc_buf_t *buf;
1300 uint64_t fill = 0;
1301
1302 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1303 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1304 if (err)
1305 return (err);
1306 ASSERT(buf->b_data);
1307
1308 /* recursively visit blocks below this */
1309 cbp = buf->b_data;
1310 for (i = 0; i < epb; i++, cbp++) {
1311 zbookmark_phys_t czb;
1312
1313 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1314 zb->zb_level - 1,
1315 zb->zb_blkid * epb + i);
1316 err = visit_indirect(spa, dnp, cbp, &czb);
1317 if (err)
1318 break;
1319 fill += BP_GET_FILL(cbp);
1320 }
1321 if (!err)
1322 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1323 arc_buf_destroy(buf, &buf);
1324 }
1325
1326 return (err);
1327 }
1328
1329 /*ARGSUSED*/
1330 static void
1331 dump_indirect(dnode_t *dn)
1332 {
1333 dnode_phys_t *dnp = dn->dn_phys;
1334 int j;
1335 zbookmark_phys_t czb;
1336
1337 (void) printf("Indirect blocks:\n");
1338
1339 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1340 dn->dn_object, dnp->dn_nlevels - 1, 0);
1341 for (j = 0; j < dnp->dn_nblkptr; j++) {
1342 czb.zb_blkid = j;
1343 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1344 &dnp->dn_blkptr[j], &czb);
1345 }
1346
1347 (void) printf("\n");
1348 }
1349
1350 /*ARGSUSED*/
1351 static void
1352 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1353 {
1354 dsl_dir_phys_t *dd = data;
1355 time_t crtime;
1356 char nice[32];
1357
1358 if (dd == NULL)
1359 return;
1360
1361 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1362
1363 crtime = dd->dd_creation_time;
1364 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1365 (void) printf("\t\thead_dataset_obj = %llu\n",
1366 (u_longlong_t)dd->dd_head_dataset_obj);
1367 (void) printf("\t\tparent_dir_obj = %llu\n",
1368 (u_longlong_t)dd->dd_parent_obj);
1369 (void) printf("\t\torigin_obj = %llu\n",
1370 (u_longlong_t)dd->dd_origin_obj);
1371 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1372 (u_longlong_t)dd->dd_child_dir_zapobj);
1373 zdb_nicenum(dd->dd_used_bytes, nice);
1374 (void) printf("\t\tused_bytes = %s\n", nice);
1375 zdb_nicenum(dd->dd_compressed_bytes, nice);
1376 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1377 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1378 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1379 zdb_nicenum(dd->dd_quota, nice);
1380 (void) printf("\t\tquota = %s\n", nice);
1381 zdb_nicenum(dd->dd_reserved, nice);
1382 (void) printf("\t\treserved = %s\n", nice);
1383 (void) printf("\t\tprops_zapobj = %llu\n",
1384 (u_longlong_t)dd->dd_props_zapobj);
1385 (void) printf("\t\tdeleg_zapobj = %llu\n",
1386 (u_longlong_t)dd->dd_deleg_zapobj);
1387 (void) printf("\t\tflags = %llx\n",
1388 (u_longlong_t)dd->dd_flags);
1389
1390 #define DO(which) \
1391 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1392 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1393 DO(HEAD);
1394 DO(SNAP);
1395 DO(CHILD);
1396 DO(CHILD_RSRV);
1397 DO(REFRSRV);
1398 #undef DO
1399 }
1400
1401 /*ARGSUSED*/
1402 static void
1403 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1404 {
1405 dsl_dataset_phys_t *ds = data;
1406 time_t crtime;
1407 char used[32], compressed[32], uncompressed[32], unique[32];
1408 char blkbuf[BP_SPRINTF_LEN];
1409
1410 if (ds == NULL)
1411 return;
1412
1413 ASSERT(size == sizeof (*ds));
1414 crtime = ds->ds_creation_time;
1415 zdb_nicenum(ds->ds_referenced_bytes, used);
1416 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1417 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1418 zdb_nicenum(ds->ds_unique_bytes, unique);
1419 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1420
1421 (void) printf("\t\tdir_obj = %llu\n",
1422 (u_longlong_t)ds->ds_dir_obj);
1423 (void) printf("\t\tprev_snap_obj = %llu\n",
1424 (u_longlong_t)ds->ds_prev_snap_obj);
1425 (void) printf("\t\tprev_snap_txg = %llu\n",
1426 (u_longlong_t)ds->ds_prev_snap_txg);
1427 (void) printf("\t\tnext_snap_obj = %llu\n",
1428 (u_longlong_t)ds->ds_next_snap_obj);
1429 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1430 (u_longlong_t)ds->ds_snapnames_zapobj);
1431 (void) printf("\t\tnum_children = %llu\n",
1432 (u_longlong_t)ds->ds_num_children);
1433 (void) printf("\t\tuserrefs_obj = %llu\n",
1434 (u_longlong_t)ds->ds_userrefs_obj);
1435 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1436 (void) printf("\t\tcreation_txg = %llu\n",
1437 (u_longlong_t)ds->ds_creation_txg);
1438 (void) printf("\t\tdeadlist_obj = %llu\n",
1439 (u_longlong_t)ds->ds_deadlist_obj);
1440 (void) printf("\t\tused_bytes = %s\n", used);
1441 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1442 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1443 (void) printf("\t\tunique = %s\n", unique);
1444 (void) printf("\t\tfsid_guid = %llu\n",
1445 (u_longlong_t)ds->ds_fsid_guid);
1446 (void) printf("\t\tguid = %llu\n",
1447 (u_longlong_t)ds->ds_guid);
1448 (void) printf("\t\tflags = %llx\n",
1449 (u_longlong_t)ds->ds_flags);
1450 (void) printf("\t\tnext_clones_obj = %llu\n",
1451 (u_longlong_t)ds->ds_next_clones_obj);
1452 (void) printf("\t\tprops_obj = %llu\n",
1453 (u_longlong_t)ds->ds_props_obj);
1454 (void) printf("\t\tbp = %s\n", blkbuf);
1455 }
1456
1457 /* ARGSUSED */
1458 static int
1459 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1460 {
1461 char blkbuf[BP_SPRINTF_LEN];
1462
1463 if (bp->blk_birth != 0) {
1464 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1465 (void) printf("\t%s\n", blkbuf);
1466 }
1467 return (0);
1468 }
1469
1470 static void
1471 dump_bptree(objset_t *os, uint64_t obj, char *name)
1472 {
1473 char bytes[32];
1474 bptree_phys_t *bt;
1475 dmu_buf_t *db;
1476
1477 if (dump_opt['d'] < 3)
1478 return;
1479
1480 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1481 bt = db->db_data;
1482 zdb_nicenum(bt->bt_bytes, bytes);
1483 (void) printf("\n %s: %llu datasets, %s\n",
1484 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1485 dmu_buf_rele(db, FTAG);
1486
1487 if (dump_opt['d'] < 5)
1488 return;
1489
1490 (void) printf("\n");
1491
1492 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1493 }
1494
1495 /* ARGSUSED */
1496 static int
1497 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1498 {
1499 char blkbuf[BP_SPRINTF_LEN];
1500
1501 ASSERT(bp->blk_birth != 0);
1502 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1503 (void) printf("\t%s\n", blkbuf);
1504 return (0);
1505 }
1506
1507 static void
1508 dump_full_bpobj(bpobj_t *bpo, char *name, int indent)
1509 {
1510 char bytes[32];
1511 char comp[32];
1512 char uncomp[32];
1513 uint64_t i;
1514
1515 if (dump_opt['d'] < 3)
1516 return;
1517
1518 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1519 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1520 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1521 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1522 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1523 "%llu subobjs in object, %llu, %s (%s/%s comp)\n",
1524 indent * 8, name,
1525 (u_longlong_t)bpo->bpo_object,
1526 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1527 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1528 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1529 bytes, comp, uncomp);
1530
1531 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1532 uint64_t subobj;
1533 bpobj_t subbpo;
1534 int error;
1535 VERIFY0(dmu_read(bpo->bpo_os,
1536 bpo->bpo_phys->bpo_subobjs,
1537 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1538 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1539 if (error != 0) {
1540 (void) printf("ERROR %u while trying to open "
1541 "subobj id %llu\n",
1542 error, (u_longlong_t)subobj);
1543 continue;
1544 }
1545 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1546 bpobj_close(&subbpo);
1547 }
1548 } else {
1549 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1550 indent * 8, name,
1551 (u_longlong_t)bpo->bpo_object,
1552 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1553 bytes);
1554 }
1555
1556 if (dump_opt['d'] < 5)
1557 return;
1558
1559
1560 if (indent == 0) {
1561 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1562 (void) printf("\n");
1563 }
1564 }
1565
1566 static void
1567 dump_deadlist(dsl_deadlist_t *dl)
1568 {
1569 dsl_deadlist_entry_t *dle;
1570 uint64_t unused;
1571 char bytes[32];
1572 char comp[32];
1573 char uncomp[32];
1574
1575 if (dump_opt['d'] < 3)
1576 return;
1577
1578 if (dl->dl_oldfmt) {
1579 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1580 return;
1581 }
1582
1583 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1584 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1585 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1586 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1587 bytes, comp, uncomp);
1588
1589 if (dump_opt['d'] < 4)
1590 return;
1591
1592 (void) printf("\n");
1593
1594 /* force the tree to be loaded */
1595 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1596
1597 for (dle = avl_first(&dl->dl_tree); dle;
1598 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1599 if (dump_opt['d'] >= 5) {
1600 char buf[128];
1601 (void) snprintf(buf, sizeof (buf),
1602 "mintxg %llu -> obj %llu",
1603 (longlong_t)dle->dle_mintxg,
1604 (longlong_t)dle->dle_bpobj.bpo_object);
1605
1606 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1607 } else {
1608 (void) printf("mintxg %llu -> obj %llu\n",
1609 (longlong_t)dle->dle_mintxg,
1610 (longlong_t)dle->dle_bpobj.bpo_object);
1611
1612 }
1613 }
1614 }
1615
1616 static avl_tree_t idx_tree;
1617 static avl_tree_t domain_tree;
1618 static boolean_t fuid_table_loaded;
1619 static objset_t *sa_os = NULL;
1620 static sa_attr_type_t *sa_attr_table = NULL;
1621
1622 static int
1623 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1624 {
1625 int err;
1626 uint64_t sa_attrs = 0;
1627 uint64_t version = 0;
1628
1629 VERIFY3P(sa_os, ==, NULL);
1630 err = dmu_objset_own(path, type, B_TRUE, tag, osp);
1631 if (err != 0) {
1632 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1633 strerror(err));
1634 return (err);
1635 }
1636
1637 if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
1638 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1639 8, 1, &version);
1640 if (version >= ZPL_VERSION_SA) {
1641 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1642 8, 1, &sa_attrs);
1643 }
1644 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1645 &sa_attr_table);
1646 if (err != 0) {
1647 (void) fprintf(stderr, "sa_setup failed: %s\n",
1648 strerror(err));
1649 dmu_objset_disown(*osp, tag);
1650 *osp = NULL;
1651 }
1652 }
1653 sa_os = *osp;
1654
1655 return (0);
1656 }
1657
1658 static void
1659 close_objset(objset_t *os, void *tag)
1660 {
1661 VERIFY3P(os, ==, sa_os);
1662 if (os->os_sa != NULL)
1663 sa_tear_down(os);
1664 dmu_objset_disown(os, tag);
1665 sa_attr_table = NULL;
1666 sa_os = NULL;
1667 }
1668
1669 static void
1670 fuid_table_destroy(void)
1671 {
1672 if (fuid_table_loaded) {
1673 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1674 fuid_table_loaded = B_FALSE;
1675 }
1676 }
1677
1678 /*
1679 * print uid or gid information.
1680 * For normal POSIX id just the id is printed in decimal format.
1681 * For CIFS files with FUID the fuid is printed in hex followed by
1682 * the domain-rid string.
1683 */
1684 static void
1685 print_idstr(uint64_t id, const char *id_type)
1686 {
1687 if (FUID_INDEX(id)) {
1688 char *domain;
1689
1690 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1691 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1692 (u_longlong_t)id, domain, (int)FUID_RID(id));
1693 } else {
1694 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1695 }
1696
1697 }
1698
1699 static void
1700 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1701 {
1702 uint32_t uid_idx, gid_idx;
1703
1704 uid_idx = FUID_INDEX(uid);
1705 gid_idx = FUID_INDEX(gid);
1706
1707 /* Load domain table, if not already loaded */
1708 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1709 uint64_t fuid_obj;
1710
1711 /* first find the fuid object. It lives in the master node */
1712 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1713 8, 1, &fuid_obj) == 0);
1714 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1715 (void) zfs_fuid_table_load(os, fuid_obj,
1716 &idx_tree, &domain_tree);
1717 fuid_table_loaded = B_TRUE;
1718 }
1719
1720 print_idstr(uid, "uid");
1721 print_idstr(gid, "gid");
1722 }
1723
1724 static void
1725 dump_znode_sa_xattr(sa_handle_t *hdl)
1726 {
1727 nvlist_t *sa_xattr;
1728 nvpair_t *elem = NULL;
1729 int sa_xattr_size = 0;
1730 int sa_xattr_entries = 0;
1731 int error;
1732 char *sa_xattr_packed;
1733
1734 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size);
1735 if (error || sa_xattr_size == 0)
1736 return;
1737
1738 sa_xattr_packed = malloc(sa_xattr_size);
1739 if (sa_xattr_packed == NULL)
1740 return;
1741
1742 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR],
1743 sa_xattr_packed, sa_xattr_size);
1744 if (error) {
1745 free(sa_xattr_packed);
1746 return;
1747 }
1748
1749 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0);
1750 if (error) {
1751 free(sa_xattr_packed);
1752 return;
1753 }
1754
1755 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL)
1756 sa_xattr_entries++;
1757
1758 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n",
1759 sa_xattr_size, sa_xattr_entries);
1760 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) {
1761 uchar_t *value;
1762 uint_t cnt, idx;
1763
1764 (void) printf("\t\t%s = ", nvpair_name(elem));
1765 nvpair_value_byte_array(elem, &value, &cnt);
1766 for (idx = 0; idx < cnt; ++idx) {
1767 if (isprint(value[idx]))
1768 (void) putchar(value[idx]);
1769 else
1770 (void) printf("\\%3.3o", value[idx]);
1771 }
1772 (void) putchar('\n');
1773 }
1774
1775 nvlist_free(sa_xattr);
1776 free(sa_xattr_packed);
1777 }
1778
1779 /*ARGSUSED*/
1780 static void
1781 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1782 {
1783 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1784 sa_handle_t *hdl;
1785 uint64_t xattr, rdev, gen;
1786 uint64_t uid, gid, mode, fsize, parent, links;
1787 uint64_t pflags;
1788 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1789 time_t z_crtime, z_atime, z_mtime, z_ctime;
1790 sa_bulk_attr_t bulk[12];
1791 int idx = 0;
1792 int error;
1793
1794 VERIFY3P(os, ==, sa_os);
1795 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1796 (void) printf("Failed to get handle for SA znode\n");
1797 return;
1798 }
1799
1800 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1801 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1802 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1803 &links, 8);
1804 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1805 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1806 &mode, 8);
1807 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1808 NULL, &parent, 8);
1809 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1810 &fsize, 8);
1811 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1812 acctm, 16);
1813 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1814 modtm, 16);
1815 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1816 crtm, 16);
1817 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1818 chgtm, 16);
1819 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1820 &pflags, 8);
1821
1822 if (sa_bulk_lookup(hdl, bulk, idx)) {
1823 (void) sa_handle_destroy(hdl);
1824 return;
1825 }
1826
1827 z_crtime = (time_t)crtm[0];
1828 z_atime = (time_t)acctm[0];
1829 z_mtime = (time_t)modtm[0];
1830 z_ctime = (time_t)chgtm[0];
1831
1832 if (dump_opt['d'] > 4) {
1833 error = zfs_obj_to_path(os, object, path, sizeof (path));
1834 if (error != 0) {
1835 (void) snprintf(path, sizeof (path),
1836 "\?\?\?<object#%llu>", (u_longlong_t)object);
1837 }
1838 (void) printf("\tpath %s\n", path);
1839 }
1840 dump_uidgid(os, uid, gid);
1841 (void) printf("\tatime %s", ctime(&z_atime));
1842 (void) printf("\tmtime %s", ctime(&z_mtime));
1843 (void) printf("\tctime %s", ctime(&z_ctime));
1844 (void) printf("\tcrtime %s", ctime(&z_crtime));
1845 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1846 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1847 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1848 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1849 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1850 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1851 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1852 sizeof (uint64_t)) == 0)
1853 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1854 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1855 sizeof (uint64_t)) == 0)
1856 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1857 dump_znode_sa_xattr(hdl);
1858 sa_handle_destroy(hdl);
1859 }
1860
1861 /*ARGSUSED*/
1862 static void
1863 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1864 {
1865 }
1866
1867 /*ARGSUSED*/
1868 static void
1869 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1870 {
1871 }
1872
1873 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1874 dump_none, /* unallocated */
1875 dump_zap, /* object directory */
1876 dump_uint64, /* object array */
1877 dump_none, /* packed nvlist */
1878 dump_packed_nvlist, /* packed nvlist size */
1879 dump_none, /* bpobj */
1880 dump_bpobj, /* bpobj header */
1881 dump_none, /* SPA space map header */
1882 dump_none, /* SPA space map */
1883 dump_none, /* ZIL intent log */
1884 dump_dnode, /* DMU dnode */
1885 dump_dmu_objset, /* DMU objset */
1886 dump_dsl_dir, /* DSL directory */
1887 dump_zap, /* DSL directory child map */
1888 dump_zap, /* DSL dataset snap map */
1889 dump_zap, /* DSL props */
1890 dump_dsl_dataset, /* DSL dataset */
1891 dump_znode, /* ZFS znode */
1892 dump_acl, /* ZFS V0 ACL */
1893 dump_uint8, /* ZFS plain file */
1894 dump_zpldir, /* ZFS directory */
1895 dump_zap, /* ZFS master node */
1896 dump_zap, /* ZFS delete queue */
1897 dump_uint8, /* zvol object */
1898 dump_zap, /* zvol prop */
1899 dump_uint8, /* other uint8[] */
1900 dump_uint64, /* other uint64[] */
1901 dump_zap, /* other ZAP */
1902 dump_zap, /* persistent error log */
1903 dump_uint8, /* SPA history */
1904 dump_history_offsets, /* SPA history offsets */
1905 dump_zap, /* Pool properties */
1906 dump_zap, /* DSL permissions */
1907 dump_acl, /* ZFS ACL */
1908 dump_uint8, /* ZFS SYSACL */
1909 dump_none, /* FUID nvlist */
1910 dump_packed_nvlist, /* FUID nvlist size */
1911 dump_zap, /* DSL dataset next clones */
1912 dump_zap, /* DSL scrub queue */
1913 dump_zap, /* ZFS user/group used */
1914 dump_zap, /* ZFS user/group quota */
1915 dump_zap, /* snapshot refcount tags */
1916 dump_ddt_zap, /* DDT ZAP object */
1917 dump_zap, /* DDT statistics */
1918 dump_znode, /* SA object */
1919 dump_zap, /* SA Master Node */
1920 dump_sa_attrs, /* SA attribute registration */
1921 dump_sa_layouts, /* SA attribute layouts */
1922 dump_zap, /* DSL scrub translations */
1923 dump_none, /* fake dedup BP */
1924 dump_zap, /* deadlist */
1925 dump_none, /* deadlist hdr */
1926 dump_zap, /* dsl clones */
1927 dump_bpobj_subobjs, /* bpobj subobjs */
1928 dump_unknown, /* Unknown type, must be last */
1929 };
1930
1931 static void
1932 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1933 {
1934 dmu_buf_t *db = NULL;
1935 dmu_object_info_t doi;
1936 dnode_t *dn;
1937 void *bonus = NULL;
1938 size_t bsize = 0;
1939 char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32];
1940 char bonus_size[32];
1941 char aux[50];
1942 int error;
1943
1944 if (*print_header) {
1945 (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n",
1946 "Object", "lvl", "iblk", "dblk", "dsize", "dnsize",
1947 "lsize", "%full", "type");
1948 *print_header = 0;
1949 }
1950
1951 if (object == 0) {
1952 dn = DMU_META_DNODE(os);
1953 } else {
1954 error = dmu_bonus_hold(os, object, FTAG, &db);
1955 if (error)
1956 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1957 object, error);
1958 bonus = db->db_data;
1959 bsize = db->db_size;
1960 dn = DB_DNODE((dmu_buf_impl_t *)db);
1961 }
1962 dmu_object_info_from_dnode(dn, &doi);
1963
1964 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1965 zdb_nicenum(doi.doi_data_block_size, dblk);
1966 zdb_nicenum(doi.doi_max_offset, lsize);
1967 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1968 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1969 zdb_nicenum(doi.doi_dnodesize, dnsize);
1970 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1971 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1972 doi.doi_max_offset);
1973
1974 aux[0] = '\0';
1975
1976 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1977 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1978 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1979 }
1980
1981 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1982 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1983 ZDB_COMPRESS_NAME(doi.doi_compress));
1984 }
1985
1986 (void) printf("%10lld %3u %5s %5s %5s %6s %5s %6s %s%s\n",
1987 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1988 asize, dnsize, lsize, fill, zdb_ot_name(doi.doi_type), aux);
1989
1990 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1991 (void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n",
1992 "", "", "", "", "", "", bonus_size, "bonus",
1993 zdb_ot_name(doi.doi_bonus_type));
1994 }
1995
1996 if (verbosity >= 4) {
1997 (void) printf("\tdnode flags: %s%s%s%s\n",
1998 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1999 "USED_BYTES " : "",
2000 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
2001 "USERUSED_ACCOUNTED " : "",
2002 (dn->dn_phys->dn_flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) ?
2003 "USEROBJUSED_ACCOUNTED " : "",
2004 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
2005 "SPILL_BLKPTR" : "");
2006 (void) printf("\tdnode maxblkid: %llu\n",
2007 (longlong_t)dn->dn_phys->dn_maxblkid);
2008
2009 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
2010 bonus, bsize);
2011 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
2012 *print_header = 1;
2013 }
2014
2015 if (verbosity >= 5)
2016 dump_indirect(dn);
2017
2018 if (verbosity >= 5) {
2019 /*
2020 * Report the list of segments that comprise the object.
2021 */
2022 uint64_t start = 0;
2023 uint64_t end;
2024 uint64_t blkfill = 1;
2025 int minlvl = 1;
2026
2027 if (dn->dn_type == DMU_OT_DNODE) {
2028 minlvl = 0;
2029 blkfill = DNODES_PER_BLOCK;
2030 }
2031
2032 for (;;) {
2033 char segsize[32];
2034 error = dnode_next_offset(dn,
2035 0, &start, minlvl, blkfill, 0);
2036 if (error)
2037 break;
2038 end = start;
2039 error = dnode_next_offset(dn,
2040 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
2041 zdb_nicenum(end - start, segsize);
2042 (void) printf("\t\tsegment [%016llx, %016llx)"
2043 " size %5s\n", (u_longlong_t)start,
2044 (u_longlong_t)end, segsize);
2045 if (error)
2046 break;
2047 start = end;
2048 }
2049 }
2050
2051 if (db != NULL)
2052 dmu_buf_rele(db, FTAG);
2053 }
2054
2055 static char *objset_types[DMU_OST_NUMTYPES] = {
2056 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
2057
2058 static void
2059 dump_dir(objset_t *os)
2060 {
2061 dmu_objset_stats_t dds;
2062 uint64_t object, object_count;
2063 uint64_t refdbytes, usedobjs, scratch;
2064 char numbuf[32];
2065 char blkbuf[BP_SPRINTF_LEN + 20];
2066 char osname[ZFS_MAX_DATASET_NAME_LEN];
2067 char *type = "UNKNOWN";
2068 int verbosity = dump_opt['d'];
2069 int print_header = 1;
2070 int i, error;
2071
2072 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
2073 dmu_objset_fast_stat(os, &dds);
2074 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
2075
2076 if (dds.dds_type < DMU_OST_NUMTYPES)
2077 type = objset_types[dds.dds_type];
2078
2079 if (dds.dds_type == DMU_OST_META) {
2080 dds.dds_creation_txg = TXG_INITIAL;
2081 usedobjs = BP_GET_FILL(os->os_rootbp);
2082 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
2083 dd_used_bytes;
2084 } else {
2085 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
2086 }
2087
2088 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
2089
2090 zdb_nicenum(refdbytes, numbuf);
2091
2092 if (verbosity >= 4) {
2093 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
2094 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2095 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2096 } else {
2097 blkbuf[0] = '\0';
2098 }
2099
2100 dmu_objset_name(os, osname);
2101
2102 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2103 "%s, %llu objects%s\n",
2104 osname, type, (u_longlong_t)dmu_objset_id(os),
2105 (u_longlong_t)dds.dds_creation_txg,
2106 numbuf, (u_longlong_t)usedobjs, blkbuf);
2107
2108 if (zopt_objects != 0) {
2109 for (i = 0; i < zopt_objects; i++)
2110 dump_object(os, zopt_object[i], verbosity,
2111 &print_header);
2112 (void) printf("\n");
2113 return;
2114 }
2115
2116 if (dump_opt['i'] != 0 || verbosity >= 2)
2117 dump_intent_log(dmu_objset_zil(os));
2118
2119 if (dmu_objset_ds(os) != NULL)
2120 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
2121
2122 if (verbosity < 2)
2123 return;
2124
2125 if (BP_IS_HOLE(os->os_rootbp))
2126 return;
2127
2128 dump_object(os, 0, verbosity, &print_header);
2129 object_count = 0;
2130 if (DMU_USERUSED_DNODE(os) != NULL &&
2131 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2132 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2133 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2134 }
2135
2136 object = 0;
2137 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2138 dump_object(os, object, verbosity, &print_header);
2139 object_count++;
2140 }
2141
2142 ASSERT3U(object_count, ==, usedobjs);
2143
2144 (void) printf("\n");
2145
2146 if (error != ESRCH) {
2147 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2148 abort();
2149 }
2150 }
2151
2152 static void
2153 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2154 {
2155 time_t timestamp = ub->ub_timestamp;
2156
2157 (void) printf("%s", header ? header : "");
2158 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2159 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2160 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2161 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2162 (void) printf("\ttimestamp = %llu UTC = %s",
2163 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2164 if (dump_opt['u'] >= 4) {
2165 char blkbuf[BP_SPRINTF_LEN];
2166 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2167 (void) printf("\trootbp = %s\n", blkbuf);
2168 }
2169 (void) printf("%s", footer ? footer : "");
2170 }
2171
2172 static void
2173 dump_config(spa_t *spa)
2174 {
2175 dmu_buf_t *db;
2176 size_t nvsize = 0;
2177 int error = 0;
2178
2179
2180 error = dmu_bonus_hold(spa->spa_meta_objset,
2181 spa->spa_config_object, FTAG, &db);
2182
2183 if (error == 0) {
2184 nvsize = *(uint64_t *)db->db_data;
2185 dmu_buf_rele(db, FTAG);
2186
2187 (void) printf("\nMOS Configuration:\n");
2188 dump_packed_nvlist(spa->spa_meta_objset,
2189 spa->spa_config_object, (void *)&nvsize, 1);
2190 } else {
2191 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2192 (u_longlong_t)spa->spa_config_object, error);
2193 }
2194 }
2195
2196 static void
2197 dump_cachefile(const char *cachefile)
2198 {
2199 int fd;
2200 struct stat64 statbuf;
2201 char *buf;
2202 nvlist_t *config;
2203
2204 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2205 (void) printf("cannot open '%s': %s\n", cachefile,
2206 strerror(errno));
2207 exit(1);
2208 }
2209
2210 if (fstat64(fd, &statbuf) != 0) {
2211 (void) printf("failed to stat '%s': %s\n", cachefile,
2212 strerror(errno));
2213 exit(1);
2214 }
2215
2216 if ((buf = malloc(statbuf.st_size)) == NULL) {
2217 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2218 (u_longlong_t)statbuf.st_size);
2219 exit(1);
2220 }
2221
2222 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2223 (void) fprintf(stderr, "failed to read %llu bytes\n",
2224 (u_longlong_t)statbuf.st_size);
2225 exit(1);
2226 }
2227
2228 (void) close(fd);
2229
2230 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2231 (void) fprintf(stderr, "failed to unpack nvlist\n");
2232 exit(1);
2233 }
2234
2235 free(buf);
2236
2237 dump_nvlist(config, 0);
2238
2239 nvlist_free(config);
2240 }
2241
2242 /*
2243 * ZFS label nvlist stats
2244 */
2245 typedef struct zdb_nvl_stats {
2246 int zns_list_count;
2247 int zns_leaf_count;
2248 size_t zns_leaf_largest;
2249 size_t zns_leaf_total;
2250 nvlist_t *zns_string;
2251 nvlist_t *zns_uint64;
2252 nvlist_t *zns_boolean;
2253 } zdb_nvl_stats_t;
2254
2255 static void
2256 collect_nvlist_stats(nvlist_t *nvl, zdb_nvl_stats_t *stats)
2257 {
2258 nvlist_t *list, **array;
2259 nvpair_t *nvp = NULL;
2260 char *name;
2261 uint_t i, items;
2262
2263 stats->zns_list_count++;
2264
2265 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2266 name = nvpair_name(nvp);
2267
2268 switch (nvpair_type(nvp)) {
2269 case DATA_TYPE_STRING:
2270 fnvlist_add_string(stats->zns_string, name,
2271 fnvpair_value_string(nvp));
2272 break;
2273 case DATA_TYPE_UINT64:
2274 fnvlist_add_uint64(stats->zns_uint64, name,
2275 fnvpair_value_uint64(nvp));
2276 break;
2277 case DATA_TYPE_BOOLEAN:
2278 fnvlist_add_boolean(stats->zns_boolean, name);
2279 break;
2280 case DATA_TYPE_NVLIST:
2281 if (nvpair_value_nvlist(nvp, &list) == 0)
2282 collect_nvlist_stats(list, stats);
2283 break;
2284 case DATA_TYPE_NVLIST_ARRAY:
2285 if (nvpair_value_nvlist_array(nvp, &array, &items) != 0)
2286 break;
2287
2288 for (i = 0; i < items; i++) {
2289 collect_nvlist_stats(array[i], stats);
2290
2291 /* collect stats on leaf vdev */
2292 if (strcmp(name, "children") == 0) {
2293 size_t size;
2294
2295 (void) nvlist_size(array[i], &size,
2296 NV_ENCODE_XDR);
2297 stats->zns_leaf_total += size;
2298 if (size > stats->zns_leaf_largest)
2299 stats->zns_leaf_largest = size;
2300 stats->zns_leaf_count++;
2301 }
2302 }
2303 break;
2304 default:
2305 (void) printf("skip type %d!\n", (int)nvpair_type(nvp));
2306 }
2307 }
2308 }
2309
2310 static void
2311 dump_nvlist_stats(nvlist_t *nvl, size_t cap)
2312 {
2313 zdb_nvl_stats_t stats = { 0 };
2314 size_t size, sum = 0, total;
2315 size_t noise;
2316
2317 /* requires nvlist with non-unique names for stat collection */
2318 VERIFY0(nvlist_alloc(&stats.zns_string, 0, 0));
2319 VERIFY0(nvlist_alloc(&stats.zns_uint64, 0, 0));
2320 VERIFY0(nvlist_alloc(&stats.zns_boolean, 0, 0));
2321 VERIFY0(nvlist_size(stats.zns_boolean, &noise, NV_ENCODE_XDR));
2322
2323 (void) printf("\n\nZFS Label NVList Config Stats:\n");
2324
2325 VERIFY0(nvlist_size(nvl, &total, NV_ENCODE_XDR));
2326 (void) printf(" %d bytes used, %d bytes free (using %4.1f%%)\n\n",
2327 (int)total, (int)(cap - total), 100.0 * total / cap);
2328
2329 collect_nvlist_stats(nvl, &stats);
2330
2331 VERIFY0(nvlist_size(stats.zns_uint64, &size, NV_ENCODE_XDR));
2332 size -= noise;
2333 sum += size;
2334 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "integers:",
2335 (int)fnvlist_num_pairs(stats.zns_uint64),
2336 (int)size, 100.0 * size / total);
2337
2338 VERIFY0(nvlist_size(stats.zns_string, &size, NV_ENCODE_XDR));
2339 size -= noise;
2340 sum += size;
2341 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "strings:",
2342 (int)fnvlist_num_pairs(stats.zns_string),
2343 (int)size, 100.0 * size / total);
2344
2345 VERIFY0(nvlist_size(stats.zns_boolean, &size, NV_ENCODE_XDR));
2346 size -= noise;
2347 sum += size;
2348 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "booleans:",
2349 (int)fnvlist_num_pairs(stats.zns_boolean),
2350 (int)size, 100.0 * size / total);
2351
2352 size = total - sum; /* treat remainder as nvlist overhead */
2353 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n\n", "nvlists:",
2354 stats.zns_list_count, (int)size, 100.0 * size / total);
2355
2356 if (stats.zns_leaf_count > 0) {
2357 size_t average = stats.zns_leaf_total / stats.zns_leaf_count;
2358
2359 (void) printf("%12s %4d %6d bytes average\n", "leaf vdevs:",
2360 stats.zns_leaf_count, (int)average);
2361 (void) printf("%24d bytes largest\n",
2362 (int)stats.zns_leaf_largest);
2363
2364 if (dump_opt['l'] >= 3 && average > 0)
2365 (void) printf(" space for %d additional leaf vdevs\n",
2366 (int)((cap - total) / average));
2367 }
2368 (void) printf("\n");
2369
2370 nvlist_free(stats.zns_string);
2371 nvlist_free(stats.zns_uint64);
2372 nvlist_free(stats.zns_boolean);
2373 }
2374
2375 typedef struct cksum_record {
2376 zio_cksum_t cksum;
2377 boolean_t labels[VDEV_LABELS];
2378 avl_node_t link;
2379 } cksum_record_t;
2380
2381 static int
2382 cksum_record_compare(const void *x1, const void *x2)
2383 {
2384 const cksum_record_t *l = (cksum_record_t *)x1;
2385 const cksum_record_t *r = (cksum_record_t *)x2;
2386 int arraysize = ARRAY_SIZE(l->cksum.zc_word);
2387 int difference;
2388
2389 for (int i = 0; i < arraysize; i++) {
2390 difference = AVL_CMP(l->cksum.zc_word[i], r->cksum.zc_word[i]);
2391 if (difference)
2392 break;
2393 }
2394
2395 return (difference);
2396 }
2397
2398 static cksum_record_t *
2399 cksum_record_alloc(zio_cksum_t *cksum, int l)
2400 {
2401 cksum_record_t *rec;
2402
2403 rec = umem_zalloc(sizeof (*rec), UMEM_NOFAIL);
2404 rec->cksum = *cksum;
2405 rec->labels[l] = B_TRUE;
2406
2407 return (rec);
2408 }
2409
2410 static cksum_record_t *
2411 cksum_record_lookup(avl_tree_t *tree, zio_cksum_t *cksum)
2412 {
2413 cksum_record_t lookup = { .cksum = *cksum };
2414 avl_index_t where;
2415
2416 return (avl_find(tree, &lookup, &where));
2417 }
2418
2419 static cksum_record_t *
2420 cksum_record_insert(avl_tree_t *tree, zio_cksum_t *cksum, int l)
2421 {
2422 cksum_record_t *rec;
2423
2424 rec = cksum_record_lookup(tree, cksum);
2425 if (rec) {
2426 rec->labels[l] = B_TRUE;
2427 } else {
2428 rec = cksum_record_alloc(cksum, l);
2429 avl_add(tree, rec);
2430 }
2431
2432 return (rec);
2433 }
2434
2435 static int
2436 first_label(cksum_record_t *rec)
2437 {
2438 for (int i = 0; i < VDEV_LABELS; i++)
2439 if (rec->labels[i])
2440 return (i);
2441
2442 return (-1);
2443 }
2444
2445 static void
2446 print_label_numbers(char *prefix, cksum_record_t *rec)
2447 {
2448 printf("%s", prefix);
2449 for (int i = 0; i < VDEV_LABELS; i++)
2450 if (rec->labels[i] == B_TRUE)
2451 printf("%d ", i);
2452 printf("\n");
2453 }
2454
2455 #define MAX_UBERBLOCK_COUNT (VDEV_UBERBLOCK_RING >> UBERBLOCK_SHIFT)
2456
2457 typedef struct label {
2458 vdev_label_t label;
2459 nvlist_t *config_nv;
2460 cksum_record_t *config;
2461 cksum_record_t *uberblocks[MAX_UBERBLOCK_COUNT];
2462 boolean_t header_printed;
2463 boolean_t read_failed;
2464 } label_t;
2465
2466 static void
2467 print_label_header(label_t *label, int l)
2468 {
2469
2470 if (dump_opt['q'])
2471 return;
2472
2473 if (label->header_printed == B_TRUE)
2474 return;
2475
2476 (void) printf("------------------------------------\n");
2477 (void) printf("LABEL %d\n", l);
2478 (void) printf("------------------------------------\n");
2479
2480 label->header_printed = B_TRUE;
2481 }
2482
2483 static void
2484 dump_config_from_label(label_t *label, size_t buflen, int l)
2485 {
2486 if (dump_opt['q'])
2487 return;
2488
2489 if ((dump_opt['l'] < 3) && (first_label(label->config) != l))
2490 return;
2491
2492 print_label_header(label, l);
2493 dump_nvlist(label->config_nv, 4);
2494 print_label_numbers(" labels = ", label->config);
2495
2496 if (dump_opt['l'] >= 2)
2497 dump_nvlist_stats(label->config_nv, buflen);
2498 }
2499
2500 #define ZDB_MAX_UB_HEADER_SIZE 32
2501
2502 static void
2503 dump_label_uberblocks(label_t *label, uint64_t ashift, int label_num)
2504 {
2505
2506 vdev_t vd;
2507 char header[ZDB_MAX_UB_HEADER_SIZE];
2508
2509 vd.vdev_ashift = ashift;
2510 vd.vdev_top = &vd;
2511
2512 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) {
2513 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i);
2514 uberblock_t *ub = (void *)((char *)&label->label + uoff);
2515 cksum_record_t *rec = label->uberblocks[i];
2516
2517 if (rec == NULL) {
2518 if (dump_opt['u'] >= 2) {
2519 print_label_header(label, label_num);
2520 (void) printf(" Uberblock[%d] invalid\n", i);
2521 }
2522 continue;
2523 }
2524
2525 if ((dump_opt['u'] < 3) && (first_label(rec) != label_num))
2526 continue;
2527
2528 print_label_header(label, label_num);
2529 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2530 " Uberblock[%d]\n", i);
2531 dump_uberblock(ub, header, "");
2532 print_label_numbers(" labels = ", rec);
2533 }
2534 }
2535
2536 static char curpath[PATH_MAX];
2537
2538 /*
2539 * Iterate through the path components, recursively passing
2540 * current one's obj and remaining path until we find the obj
2541 * for the last one.
2542 */
2543 static int
2544 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2545 {
2546 int err;
2547 int header = 1;
2548 uint64_t child_obj;
2549 char *s;
2550 dmu_buf_t *db;
2551 dmu_object_info_t doi;
2552
2553 if ((s = strchr(name, '/')) != NULL)
2554 *s = '\0';
2555 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2556
2557 (void) strlcat(curpath, name, sizeof (curpath));
2558
2559 if (err != 0) {
2560 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2561 curpath, strerror(err));
2562 return (err);
2563 }
2564
2565 child_obj = ZFS_DIRENT_OBJ(child_obj);
2566 err = sa_buf_hold(os, child_obj, FTAG, &db);
2567 if (err != 0) {
2568 (void) fprintf(stderr,
2569 "failed to get SA dbuf for obj %llu: %s\n",
2570 (u_longlong_t)child_obj, strerror(err));
2571 return (EINVAL);
2572 }
2573 dmu_object_info_from_db(db, &doi);
2574 sa_buf_rele(db, FTAG);
2575
2576 if (doi.doi_bonus_type != DMU_OT_SA &&
2577 doi.doi_bonus_type != DMU_OT_ZNODE) {
2578 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2579 doi.doi_bonus_type, (u_longlong_t)child_obj);
2580 return (EINVAL);
2581 }
2582
2583 if (dump_opt['v'] > 6) {
2584 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2585 (u_longlong_t)child_obj, curpath, doi.doi_type,
2586 doi.doi_bonus_type);
2587 }
2588
2589 (void) strlcat(curpath, "/", sizeof (curpath));
2590
2591 switch (doi.doi_type) {
2592 case DMU_OT_DIRECTORY_CONTENTS:
2593 if (s != NULL && *(s + 1) != '\0')
2594 return (dump_path_impl(os, child_obj, s + 1));
2595 /*FALLTHROUGH*/
2596 case DMU_OT_PLAIN_FILE_CONTENTS:
2597 dump_object(os, child_obj, dump_opt['v'], &header);
2598 return (0);
2599 default:
2600 (void) fprintf(stderr, "object %llu has non-file/directory "
2601 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2602 break;
2603 }
2604
2605 return (EINVAL);
2606 }
2607
2608 /*
2609 * Dump the blocks for the object specified by path inside the dataset.
2610 */
2611 static int
2612 dump_path(char *ds, char *path)
2613 {
2614 int err;
2615 objset_t *os;
2616 uint64_t root_obj;
2617
2618 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2619 if (err != 0)
2620 return (err);
2621
2622 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2623 if (err != 0) {
2624 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2625 strerror(err));
2626 dmu_objset_disown(os, FTAG);
2627 return (EINVAL);
2628 }
2629
2630 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2631
2632 err = dump_path_impl(os, root_obj, path);
2633
2634 close_objset(os, FTAG);
2635 return (err);
2636 }
2637
2638 static int
2639 dump_label(const char *dev)
2640 {
2641 char path[MAXPATHLEN];
2642 label_t labels[VDEV_LABELS];
2643 uint64_t psize, ashift;
2644 struct stat64 statbuf;
2645 boolean_t config_found = B_FALSE;
2646 boolean_t error = B_FALSE;
2647 avl_tree_t config_tree;
2648 avl_tree_t uberblock_tree;
2649 void *node, *cookie;
2650 int fd;
2651
2652 bzero(labels, sizeof (labels));
2653
2654 /*
2655 * Check if we were given absolute path and use it as is.
2656 * Otherwise if the provided vdev name doesn't point to a file,
2657 * try prepending expected disk paths and partition numbers.
2658 */
2659 (void) strlcpy(path, dev, sizeof (path));
2660 if (dev[0] != '/' && stat64(path, &statbuf) != 0) {
2661 int error;
2662
2663 error = zfs_resolve_shortname(dev, path, MAXPATHLEN);
2664 if (error == 0 && zfs_dev_is_whole_disk(path)) {
2665 if (zfs_append_partition(path, MAXPATHLEN) == -1)
2666 error = ENOENT;
2667 }
2668
2669 if (error || (stat64(path, &statbuf) != 0)) {
2670 (void) printf("failed to find device %s, try "
2671 "specifying absolute path instead\n", dev);
2672 return (1);
2673 }
2674 }
2675
2676 if ((fd = open64(path, O_RDONLY)) < 0) {
2677 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2678 exit(1);
2679 }
2680
2681 if (ioctl(fd, BLKFLSBUF) != 0)
2682 (void) printf("failed to invalidate cache '%s' : %s\n", path,
2683 strerror(errno));
2684
2685 if (fstat64_blk(fd, &statbuf) != 0) {
2686 (void) printf("failed to stat '%s': %s\n", path,
2687 strerror(errno));
2688 (void) close(fd);
2689 exit(1);
2690 }
2691
2692 avl_create(&config_tree, cksum_record_compare,
2693 sizeof (cksum_record_t), offsetof(cksum_record_t, link));
2694 avl_create(&uberblock_tree, cksum_record_compare,
2695 sizeof (cksum_record_t), offsetof(cksum_record_t, link));
2696
2697 psize = statbuf.st_size;
2698 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2699 ashift = SPA_MINBLOCKSHIFT;
2700
2701 /*
2702 * 1. Read the label from disk
2703 * 2. Unpack the configuration and insert in config tree.
2704 * 3. Traverse all uberblocks and insert in uberblock tree.
2705 */
2706 for (int l = 0; l < VDEV_LABELS; l++) {
2707 label_t *label = &labels[l];
2708 char *buf = label->label.vl_vdev_phys.vp_nvlist;
2709 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist);
2710 nvlist_t *config;
2711 cksum_record_t *rec;
2712 zio_cksum_t cksum;
2713 vdev_t vd;
2714
2715 if (pread64(fd, &label->label, sizeof (label->label),
2716 vdev_label_offset(psize, l, 0)) != sizeof (label->label)) {
2717 if (!dump_opt['q'])
2718 (void) printf("failed to read label %d\n", l);
2719 label->read_failed = B_TRUE;
2720 error = B_TRUE;
2721 continue;
2722 }
2723
2724 label->read_failed = B_FALSE;
2725
2726 if (nvlist_unpack(buf, buflen, &config, 0) == 0) {
2727 nvlist_t *vdev_tree = NULL;
2728 size_t size;
2729
2730 if ((nvlist_lookup_nvlist(config,
2731 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2732 (nvlist_lookup_uint64(vdev_tree,
2733 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2734 ashift = SPA_MINBLOCKSHIFT;
2735
2736 if (nvlist_size(config, &size, NV_ENCODE_XDR) != 0)
2737 size = buflen;
2738
2739 fletcher_4_native_varsize(buf, size, &cksum);
2740 rec = cksum_record_insert(&config_tree, &cksum, l);
2741
2742 label->config = rec;
2743 label->config_nv = config;
2744 config_found = B_TRUE;
2745 } else {
2746 error = B_TRUE;
2747 }
2748
2749 vd.vdev_ashift = ashift;
2750 vd.vdev_top = &vd;
2751
2752 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) {
2753 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i);
2754 uberblock_t *ub = (void *)((char *)label + uoff);
2755
2756 if (uberblock_verify(ub))
2757 continue;
2758
2759 fletcher_4_native_varsize(ub, sizeof (*ub), &cksum);
2760 rec = cksum_record_insert(&uberblock_tree, &cksum, l);
2761
2762 label->uberblocks[i] = rec;
2763 }
2764 }
2765
2766 /*
2767 * Dump the label and uberblocks.
2768 */
2769 for (int l = 0; l < VDEV_LABELS; l++) {
2770 label_t *label = &labels[l];
2771 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist);
2772
2773 if (label->read_failed == B_TRUE)
2774 continue;
2775
2776 if (label->config_nv) {
2777 dump_config_from_label(label, buflen, l);
2778 } else {
2779 if (!dump_opt['q'])
2780 (void) printf("failed to unpack label %d\n", l);
2781 }
2782
2783 if (dump_opt['u'])
2784 dump_label_uberblocks(label, ashift, l);
2785
2786 nvlist_free(label->config_nv);
2787 }
2788
2789 cookie = NULL;
2790 while ((node = avl_destroy_nodes(&config_tree, &cookie)) != NULL)
2791 umem_free(node, sizeof (cksum_record_t));
2792
2793 cookie = NULL;
2794 while ((node = avl_destroy_nodes(&uberblock_tree, &cookie)) != NULL)
2795 umem_free(node, sizeof (cksum_record_t));
2796
2797 avl_destroy(&config_tree);
2798 avl_destroy(&uberblock_tree);
2799
2800 (void) close(fd);
2801
2802 return (config_found == B_FALSE ? 2 :
2803 (error == B_TRUE ? 1 : 0));
2804 }
2805
2806 static uint64_t dataset_feature_count[SPA_FEATURES];
2807
2808 /*ARGSUSED*/
2809 static int
2810 dump_one_dir(const char *dsname, void *arg)
2811 {
2812 int error;
2813 objset_t *os;
2814 spa_feature_t f;
2815
2816 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
2817 if (error != 0)
2818 return (0);
2819
2820 for (f = 0; f < SPA_FEATURES; f++) {
2821 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2822 continue;
2823 ASSERT(spa_feature_table[f].fi_flags &
2824 ZFEATURE_FLAG_PER_DATASET);
2825 dataset_feature_count[f]++;
2826 }
2827
2828 dump_dir(os);
2829 close_objset(os, FTAG);
2830 fuid_table_destroy();
2831 return (0);
2832 }
2833
2834 /*
2835 * Block statistics.
2836 */
2837 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2838 typedef struct zdb_blkstats {
2839 uint64_t zb_asize;
2840 uint64_t zb_lsize;
2841 uint64_t zb_psize;
2842 uint64_t zb_count;
2843 uint64_t zb_gangs;
2844 uint64_t zb_ditto_samevdev;
2845 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2846 } zdb_blkstats_t;
2847
2848 /*
2849 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2850 */
2851 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2852 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2853 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2854 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2855
2856 static char *zdb_ot_extname[] = {
2857 "deferred free",
2858 "dedup ditto",
2859 "other",
2860 "Total",
2861 };
2862
2863 #define ZB_TOTAL DN_MAX_LEVELS
2864
2865 typedef struct zdb_cb {
2866 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2867 uint64_t zcb_dedup_asize;
2868 uint64_t zcb_dedup_blocks;
2869 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2870 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2871 [BPE_PAYLOAD_SIZE + 1];
2872 uint64_t zcb_start;
2873 uint64_t zcb_lastprint;
2874 uint64_t zcb_totalasize;
2875 uint64_t zcb_errors[256];
2876 int zcb_readfails;
2877 int zcb_haderrors;
2878 spa_t *zcb_spa;
2879 } zdb_cb_t;
2880
2881 static void
2882 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2883 dmu_object_type_t type)
2884 {
2885 uint64_t refcnt = 0;
2886 int i;
2887
2888 ASSERT(type < ZDB_OT_TOTAL);
2889
2890 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2891 return;
2892
2893 for (i = 0; i < 4; i++) {
2894 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2895 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2896 int equal;
2897 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2898
2899 zb->zb_asize += BP_GET_ASIZE(bp);
2900 zb->zb_lsize += BP_GET_LSIZE(bp);
2901 zb->zb_psize += BP_GET_PSIZE(bp);
2902 zb->zb_count++;
2903
2904 /*
2905 * The histogram is only big enough to record blocks up to
2906 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2907 * "other", bucket.
2908 */
2909 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2910 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2911 zb->zb_psize_histogram[idx]++;
2912
2913 zb->zb_gangs += BP_COUNT_GANG(bp);
2914
2915 switch (BP_GET_NDVAS(bp)) {
2916 case 2:
2917 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2918 DVA_GET_VDEV(&bp->blk_dva[1]))
2919 zb->zb_ditto_samevdev++;
2920 break;
2921 case 3:
2922 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2923 DVA_GET_VDEV(&bp->blk_dva[1])) +
2924 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2925 DVA_GET_VDEV(&bp->blk_dva[2])) +
2926 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2927 DVA_GET_VDEV(&bp->blk_dva[2]));
2928 if (equal != 0)
2929 zb->zb_ditto_samevdev++;
2930 break;
2931 }
2932
2933 }
2934
2935 if (BP_IS_EMBEDDED(bp)) {
2936 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2937 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2938 [BPE_GET_PSIZE(bp)]++;
2939 return;
2940 }
2941
2942 if (dump_opt['L'])
2943 return;
2944
2945 if (BP_GET_DEDUP(bp)) {
2946 ddt_t *ddt;
2947 ddt_entry_t *dde;
2948
2949 ddt = ddt_select(zcb->zcb_spa, bp);
2950 ddt_enter(ddt);
2951 dde = ddt_lookup(ddt, bp, B_FALSE);
2952
2953 if (dde == NULL) {
2954 refcnt = 0;
2955 } else {
2956 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2957 ddt_phys_decref(ddp);
2958 refcnt = ddp->ddp_refcnt;
2959 if (ddt_phys_total_refcnt(dde) == 0)
2960 ddt_remove(ddt, dde);
2961 }
2962 ddt_exit(ddt);
2963 }
2964
2965 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2966 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2967 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2968 }
2969
2970 static void
2971 zdb_blkptr_done(zio_t *zio)
2972 {
2973 spa_t *spa = zio->io_spa;
2974 blkptr_t *bp = zio->io_bp;
2975 int ioerr = zio->io_error;
2976 zdb_cb_t *zcb = zio->io_private;
2977 zbookmark_phys_t *zb = &zio->io_bookmark;
2978
2979 abd_free(zio->io_abd);
2980
2981 mutex_enter(&spa->spa_scrub_lock);
2982 spa->spa_scrub_inflight--;
2983 cv_broadcast(&spa->spa_scrub_io_cv);
2984
2985 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2986 char blkbuf[BP_SPRINTF_LEN];
2987
2988 zcb->zcb_haderrors = 1;
2989 zcb->zcb_errors[ioerr]++;
2990
2991 if (dump_opt['b'] >= 2)
2992 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2993 else
2994 blkbuf[0] = '\0';
2995
2996 (void) printf("zdb_blkptr_cb: "
2997 "Got error %d reading "
2998 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2999 ioerr,
3000 (u_longlong_t)zb->zb_objset,
3001 (u_longlong_t)zb->zb_object,
3002 (u_longlong_t)zb->zb_level,
3003 (u_longlong_t)zb->zb_blkid,
3004 blkbuf);
3005 }
3006 mutex_exit(&spa->spa_scrub_lock);
3007 }
3008
3009 static int
3010 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3011 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3012 {
3013 zdb_cb_t *zcb = arg;
3014 dmu_object_type_t type;
3015 boolean_t is_metadata;
3016
3017 if (bp == NULL)
3018 return (0);
3019
3020 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
3021 char blkbuf[BP_SPRINTF_LEN];
3022 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3023 (void) printf("objset %llu object %llu "
3024 "level %lld offset 0x%llx %s\n",
3025 (u_longlong_t)zb->zb_objset,
3026 (u_longlong_t)zb->zb_object,
3027 (longlong_t)zb->zb_level,
3028 (u_longlong_t)blkid2offset(dnp, bp, zb),
3029 blkbuf);
3030 }
3031
3032 if (BP_IS_HOLE(bp))
3033 return (0);
3034
3035 type = BP_GET_TYPE(bp);
3036
3037 zdb_count_block(zcb, zilog, bp,
3038 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
3039
3040 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
3041
3042 if (!BP_IS_EMBEDDED(bp) &&
3043 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
3044 size_t size = BP_GET_PSIZE(bp);
3045 abd_t *abd = abd_alloc(size, B_FALSE);
3046 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
3047
3048 /* If it's an intent log block, failure is expected. */
3049 if (zb->zb_level == ZB_ZIL_LEVEL)
3050 flags |= ZIO_FLAG_SPECULATIVE;
3051
3052 mutex_enter(&spa->spa_scrub_lock);
3053 while (spa->spa_scrub_inflight > max_inflight)
3054 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
3055 spa->spa_scrub_inflight++;
3056 mutex_exit(&spa->spa_scrub_lock);
3057
3058 zio_nowait(zio_read(NULL, spa, bp, abd, size,
3059 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
3060 }
3061
3062 zcb->zcb_readfails = 0;
3063
3064 /* only call gethrtime() every 100 blocks */
3065 static int iters;
3066 if (++iters > 100)
3067 iters = 0;
3068 else
3069 return (0);
3070
3071 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
3072 uint64_t now = gethrtime();
3073 char buf[10];
3074 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
3075 int kb_per_sec =
3076 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
3077 int sec_remaining =
3078 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
3079
3080 zfs_nicebytes(bytes, buf, sizeof (buf));
3081 (void) fprintf(stderr,
3082 "\r%5s completed (%4dMB/s) "
3083 "estimated time remaining: %uhr %02umin %02usec ",
3084 buf, kb_per_sec / 1024,
3085 sec_remaining / 60 / 60,
3086 sec_remaining / 60 % 60,
3087 sec_remaining % 60);
3088
3089 zcb->zcb_lastprint = now;
3090 }
3091
3092 return (0);
3093 }
3094
3095 static void
3096 zdb_leak(void *arg, uint64_t start, uint64_t size)
3097 {
3098 vdev_t *vd = arg;
3099
3100 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
3101 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
3102 }
3103
3104 static metaslab_ops_t zdb_metaslab_ops = {
3105 NULL /* alloc */
3106 };
3107
3108 static void
3109 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
3110 {
3111 ddt_bookmark_t ddb = { 0 };
3112 ddt_entry_t dde;
3113 int error;
3114 int p;
3115
3116 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
3117 blkptr_t blk;
3118 ddt_phys_t *ddp = dde.dde_phys;
3119
3120 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
3121 return;
3122
3123 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
3124
3125 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
3126 if (ddp->ddp_phys_birth == 0)
3127 continue;
3128 ddt_bp_create(ddb.ddb_checksum,
3129 &dde.dde_key, ddp, &blk);
3130 if (p == DDT_PHYS_DITTO) {
3131 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
3132 } else {
3133 zcb->zcb_dedup_asize +=
3134 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
3135 zcb->zcb_dedup_blocks++;
3136 }
3137 }
3138 if (!dump_opt['L']) {
3139 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
3140 ddt_enter(ddt);
3141 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
3142 ddt_exit(ddt);
3143 }
3144 }
3145
3146 ASSERT(error == ENOENT);
3147 }
3148
3149 static void
3150 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
3151 {
3152 zcb->zcb_spa = spa;
3153 uint64_t c, m;
3154
3155 if (!dump_opt['L']) {
3156 vdev_t *rvd = spa->spa_root_vdev;
3157
3158 /*
3159 * We are going to be changing the meaning of the metaslab's
3160 * ms_tree. Ensure that the allocator doesn't try to
3161 * use the tree.
3162 */
3163 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
3164 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
3165
3166 for (c = 0; c < rvd->vdev_children; c++) {
3167 vdev_t *vd = rvd->vdev_child[c];
3168 ASSERTV(metaslab_group_t *mg = vd->vdev_mg);
3169 for (m = 0; m < vd->vdev_ms_count; m++) {
3170 metaslab_t *msp = vd->vdev_ms[m];
3171 ASSERT3P(msp->ms_group, ==, mg);
3172 mutex_enter(&msp->ms_lock);
3173 metaslab_unload(msp);
3174
3175 /*
3176 * For leak detection, we overload the metaslab
3177 * ms_tree to contain allocated segments
3178 * instead of free segments. As a result,
3179 * we can't use the normal metaslab_load/unload
3180 * interfaces.
3181 */
3182 if (msp->ms_sm != NULL) {
3183 (void) fprintf(stderr,
3184 "\rloading space map for "
3185 "vdev %llu of %llu, "
3186 "metaslab %llu of %llu ...",
3187 (longlong_t)c,
3188 (longlong_t)rvd->vdev_children,
3189 (longlong_t)m,
3190 (longlong_t)vd->vdev_ms_count);
3191
3192 /*
3193 * We don't want to spend the CPU
3194 * manipulating the size-ordered
3195 * tree, so clear the range_tree
3196 * ops.
3197 */
3198 msp->ms_tree->rt_ops = NULL;
3199 VERIFY0(space_map_load(msp->ms_sm,
3200 msp->ms_tree, SM_ALLOC));
3201
3202 if (!msp->ms_loaded)
3203 msp->ms_loaded = B_TRUE;
3204 }
3205 mutex_exit(&msp->ms_lock);
3206 }
3207 }
3208 (void) fprintf(stderr, "\n");
3209 }
3210
3211 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3212
3213 zdb_ddt_leak_init(spa, zcb);
3214
3215 spa_config_exit(spa, SCL_CONFIG, FTAG);
3216 }
3217
3218 static void
3219 zdb_leak_fini(spa_t *spa)
3220 {
3221 int c, m;
3222
3223 if (!dump_opt['L']) {
3224 vdev_t *rvd = spa->spa_root_vdev;
3225 for (c = 0; c < rvd->vdev_children; c++) {
3226 vdev_t *vd = rvd->vdev_child[c];
3227 ASSERTV(metaslab_group_t *mg = vd->vdev_mg);
3228 for (m = 0; m < vd->vdev_ms_count; m++) {
3229 metaslab_t *msp = vd->vdev_ms[m];
3230 ASSERT3P(mg, ==, msp->ms_group);
3231 mutex_enter(&msp->ms_lock);
3232
3233 /*
3234 * The ms_tree has been overloaded to
3235 * contain allocated segments. Now that we
3236 * finished traversing all blocks, any
3237 * block that remains in the ms_tree
3238 * represents an allocated block that we
3239 * did not claim during the traversal.
3240 * Claimed blocks would have been removed
3241 * from the ms_tree.
3242 */
3243 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
3244
3245 if (msp->ms_loaded)
3246 msp->ms_loaded = B_FALSE;
3247
3248 mutex_exit(&msp->ms_lock);
3249 }
3250 }
3251 }
3252 }
3253
3254 /* ARGSUSED */
3255 static int
3256 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
3257 {
3258 zdb_cb_t *zcb = arg;
3259
3260 if (dump_opt['b'] >= 5) {
3261 char blkbuf[BP_SPRINTF_LEN];
3262 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3263 (void) printf("[%s] %s\n",
3264 "deferred free", blkbuf);
3265 }
3266 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
3267 return (0);
3268 }
3269
3270 static int
3271 dump_block_stats(spa_t *spa)
3272 {
3273 zdb_cb_t zcb;
3274 zdb_blkstats_t *zb, *tzb;
3275 uint64_t norm_alloc, norm_space, total_alloc, total_found;
3276 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
3277 boolean_t leaks = B_FALSE;
3278 int e, c;
3279 bp_embedded_type_t i;
3280
3281 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
3282 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
3283 (dump_opt['c'] == 1) ? "metadata " : "",
3284 dump_opt['c'] ? "checksums " : "",
3285 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
3286 !dump_opt['L'] ? "nothing leaked " : "");
3287
3288 /*
3289 * Load all space maps as SM_ALLOC maps, then traverse the pool
3290 * claiming each block we discover. If the pool is perfectly
3291 * consistent, the space maps will be empty when we're done.
3292 * Anything left over is a leak; any block we can't claim (because
3293 * it's not part of any space map) is a double allocation,
3294 * reference to a freed block, or an unclaimed log block.
3295 */
3296 bzero(&zcb, sizeof (zdb_cb_t));
3297 zdb_leak_init(spa, &zcb);
3298
3299 /*
3300 * If there's a deferred-free bplist, process that first.
3301 */
3302 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
3303 count_block_cb, &zcb, NULL);
3304 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3305 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
3306 count_block_cb, &zcb, NULL);
3307 }
3308 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
3309 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
3310 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
3311 &zcb, NULL));
3312 }
3313
3314 if (dump_opt['c'] > 1)
3315 flags |= TRAVERSE_PREFETCH_DATA;
3316
3317 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
3318 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
3319 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
3320
3321 /*
3322 * If we've traversed the data blocks then we need to wait for those
3323 * I/Os to complete. We leverage "The Godfather" zio to wait on
3324 * all async I/Os to complete.
3325 */
3326 if (dump_opt['c']) {
3327 for (c = 0; c < max_ncpus; c++) {
3328 (void) zio_wait(spa->spa_async_zio_root[c]);
3329 spa->spa_async_zio_root[c] = zio_root(spa, NULL, NULL,
3330 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
3331 ZIO_FLAG_GODFATHER);
3332 }
3333 }
3334
3335 if (zcb.zcb_haderrors) {
3336 (void) printf("\nError counts:\n\n");
3337 (void) printf("\t%5s %s\n", "errno", "count");
3338 for (e = 0; e < 256; e++) {
3339 if (zcb.zcb_errors[e] != 0) {
3340 (void) printf("\t%5d %llu\n",
3341 e, (u_longlong_t)zcb.zcb_errors[e]);
3342 }
3343 }
3344 }
3345
3346 /*
3347 * Report any leaked segments.
3348 */
3349 zdb_leak_fini(spa);
3350
3351 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
3352
3353 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
3354 norm_space = metaslab_class_get_space(spa_normal_class(spa));
3355
3356 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
3357 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
3358
3359 if (total_found == total_alloc) {
3360 if (!dump_opt['L'])
3361 (void) printf("\n\tNo leaks (block sum matches space"
3362 " maps exactly)\n");
3363 } else {
3364 (void) printf("block traversal size %llu != alloc %llu "
3365 "(%s %lld)\n",
3366 (u_longlong_t)total_found,
3367 (u_longlong_t)total_alloc,
3368 (dump_opt['L']) ? "unreachable" : "leaked",
3369 (longlong_t)(total_alloc - total_found));
3370 leaks = B_TRUE;
3371 }
3372
3373 if (tzb->zb_count == 0)
3374 return (2);
3375
3376 (void) printf("\n");
3377 (void) printf("\tbp count: %10llu\n",
3378 (u_longlong_t)tzb->zb_count);
3379 (void) printf("\tganged count: %10llu\n",
3380 (longlong_t)tzb->zb_gangs);
3381 (void) printf("\tbp logical: %10llu avg: %6llu\n",
3382 (u_longlong_t)tzb->zb_lsize,
3383 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
3384 (void) printf("\tbp physical: %10llu avg:"
3385 " %6llu compression: %6.2f\n",
3386 (u_longlong_t)tzb->zb_psize,
3387 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
3388 (double)tzb->zb_lsize / tzb->zb_psize);
3389 (void) printf("\tbp allocated: %10llu avg:"
3390 " %6llu compression: %6.2f\n",
3391 (u_longlong_t)tzb->zb_asize,
3392 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
3393 (double)tzb->zb_lsize / tzb->zb_asize);
3394 (void) printf("\tbp deduped: %10llu ref>1:"
3395 " %6llu deduplication: %6.2f\n",
3396 (u_longlong_t)zcb.zcb_dedup_asize,
3397 (u_longlong_t)zcb.zcb_dedup_blocks,
3398 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
3399 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
3400 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
3401
3402 for (i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
3403 if (zcb.zcb_embedded_blocks[i] == 0)
3404 continue;
3405 (void) printf("\n");
3406 (void) printf("\tadditional, non-pointer bps of type %u: "
3407 "%10llu\n",
3408 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
3409
3410 if (dump_opt['b'] >= 3) {
3411 (void) printf("\t number of (compressed) bytes: "
3412 "number of bps\n");
3413 dump_histogram(zcb.zcb_embedded_histogram[i],
3414 sizeof (zcb.zcb_embedded_histogram[i]) /
3415 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
3416 }
3417 }
3418
3419 if (tzb->zb_ditto_samevdev != 0) {
3420 (void) printf("\tDittoed blocks on same vdev: %llu\n",
3421 (longlong_t)tzb->zb_ditto_samevdev);
3422 }
3423
3424 if (dump_opt['b'] >= 2) {
3425 int l, t, level;
3426 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
3427 "\t avg\t comp\t%%Total\tType\n");
3428
3429 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
3430 char csize[32], lsize[32], psize[32], asize[32];
3431 char avg[32], gang[32];
3432 char *typename;
3433
3434 if (t < DMU_OT_NUMTYPES)
3435 typename = dmu_ot[t].ot_name;
3436 else
3437 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
3438
3439 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
3440 (void) printf("%6s\t%5s\t%5s\t%5s"
3441 "\t%5s\t%5s\t%6s\t%s\n",
3442 "-",
3443 "-",
3444 "-",
3445 "-",
3446 "-",
3447 "-",
3448 "-",
3449 typename);
3450 continue;
3451 }
3452
3453 for (l = ZB_TOTAL - 1; l >= -1; l--) {
3454 level = (l == -1 ? ZB_TOTAL : l);
3455 zb = &zcb.zcb_type[level][t];
3456
3457 if (zb->zb_asize == 0)
3458 continue;
3459
3460 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
3461 continue;
3462
3463 if (level == 0 && zb->zb_asize ==
3464 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
3465 continue;
3466
3467 zdb_nicenum(zb->zb_count, csize);
3468 zdb_nicenum(zb->zb_lsize, lsize);
3469 zdb_nicenum(zb->zb_psize, psize);
3470 zdb_nicenum(zb->zb_asize, asize);
3471 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
3472 zdb_nicenum(zb->zb_gangs, gang);
3473
3474 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
3475 "\t%5.2f\t%6.2f\t",
3476 csize, lsize, psize, asize, avg,
3477 (double)zb->zb_lsize / zb->zb_psize,
3478 100.0 * zb->zb_asize / tzb->zb_asize);
3479
3480 if (level == ZB_TOTAL)
3481 (void) printf("%s\n", typename);
3482 else
3483 (void) printf(" L%d %s\n",
3484 level, typename);
3485
3486 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
3487 (void) printf("\t number of ganged "
3488 "blocks: %s\n", gang);
3489 }
3490
3491 if (dump_opt['b'] >= 4) {
3492 (void) printf("psize "
3493 "(in 512-byte sectors): "
3494 "number of blocks\n");
3495 dump_histogram(zb->zb_psize_histogram,
3496 PSIZE_HISTO_SIZE, 0);
3497 }
3498 }
3499 }
3500 }
3501
3502 (void) printf("\n");
3503
3504 if (leaks)
3505 return (2);
3506
3507 if (zcb.zcb_haderrors)
3508 return (3);
3509
3510 return (0);
3511 }
3512
3513 typedef struct zdb_ddt_entry {
3514 ddt_key_t zdde_key;
3515 uint64_t zdde_ref_blocks;
3516 uint64_t zdde_ref_lsize;
3517 uint64_t zdde_ref_psize;
3518 uint64_t zdde_ref_dsize;
3519 avl_node_t zdde_node;
3520 } zdb_ddt_entry_t;
3521
3522 /* ARGSUSED */
3523 static int
3524 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3525 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3526 {
3527 avl_tree_t *t = arg;
3528 avl_index_t where;
3529 zdb_ddt_entry_t *zdde, zdde_search;
3530
3531 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
3532 return (0);
3533
3534 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
3535 (void) printf("traversing objset %llu, %llu objects, "
3536 "%lu blocks so far\n",
3537 (u_longlong_t)zb->zb_objset,
3538 (u_longlong_t)BP_GET_FILL(bp),
3539 avl_numnodes(t));
3540 }
3541
3542 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
3543 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
3544 return (0);
3545
3546 ddt_key_fill(&zdde_search.zdde_key, bp);
3547
3548 zdde = avl_find(t, &zdde_search, &where);
3549
3550 if (zdde == NULL) {
3551 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
3552 zdde->zdde_key = zdde_search.zdde_key;
3553 avl_insert(t, zdde, where);
3554 }
3555
3556 zdde->zdde_ref_blocks += 1;
3557 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
3558 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
3559 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
3560
3561 return (0);
3562 }
3563
3564 static void
3565 dump_simulated_ddt(spa_t *spa)
3566 {
3567 avl_tree_t t;
3568 void *cookie = NULL;
3569 zdb_ddt_entry_t *zdde;
3570 ddt_histogram_t ddh_total;
3571 ddt_stat_t dds_total;
3572
3573 bzero(&ddh_total, sizeof (ddt_histogram_t));
3574 bzero(&dds_total, sizeof (ddt_stat_t));
3575
3576 avl_create(&t, ddt_entry_compare,
3577 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
3578
3579 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3580
3581 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
3582 zdb_ddt_add_cb, &t);
3583
3584 spa_config_exit(spa, SCL_CONFIG, FTAG);
3585
3586 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
3587 ddt_stat_t dds;
3588 uint64_t refcnt = zdde->zdde_ref_blocks;
3589 ASSERT(refcnt != 0);
3590
3591 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
3592 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
3593 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
3594 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
3595
3596 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
3597 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
3598 dds.dds_ref_psize = zdde->zdde_ref_psize;
3599 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3600
3601 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3602 &dds, 0);
3603
3604 umem_free(zdde, sizeof (*zdde));
3605 }
3606
3607 avl_destroy(&t);
3608
3609 ddt_histogram_stat(&dds_total, &ddh_total);
3610
3611 (void) printf("Simulated DDT histogram:\n");
3612
3613 zpool_dump_ddt(&dds_total, &ddh_total);
3614
3615 dump_dedup_ratio(&dds_total);
3616 }
3617
3618 static void
3619 dump_zpool(spa_t *spa)
3620 {
3621 dsl_pool_t *dp = spa_get_dsl(spa);
3622 int rc = 0;
3623
3624 if (dump_opt['S']) {
3625 dump_simulated_ddt(spa);
3626 return;
3627 }
3628
3629 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3630 (void) printf("\nCached configuration:\n");
3631 dump_nvlist(spa->spa_config, 8);
3632 }
3633
3634 if (dump_opt['C'])
3635 dump_config(spa);
3636
3637 if (dump_opt['u'])
3638 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3639
3640 if (dump_opt['D'])
3641 dump_all_ddts(spa);
3642
3643 if (dump_opt['d'] > 2 || dump_opt['m'])
3644 dump_metaslabs(spa);
3645 if (dump_opt['M'])
3646 dump_metaslab_groups(spa);
3647
3648 if (dump_opt['d'] || dump_opt['i']) {
3649 spa_feature_t f;
3650
3651 dump_dir(dp->dp_meta_objset);
3652 if (dump_opt['d'] >= 3) {
3653 dump_full_bpobj(&spa->spa_deferred_bpobj,
3654 "Deferred frees", 0);
3655 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3656 dump_full_bpobj(
3657 &spa->spa_dsl_pool->dp_free_bpobj,
3658 "Pool snapshot frees", 0);
3659 }
3660
3661 if (spa_feature_is_active(spa,
3662 SPA_FEATURE_ASYNC_DESTROY)) {
3663 dump_bptree(spa->spa_meta_objset,
3664 spa->spa_dsl_pool->dp_bptree_obj,
3665 "Pool dataset frees");
3666 }
3667 dump_dtl(spa->spa_root_vdev, 0);
3668 }
3669 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3670 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3671
3672 for (f = 0; f < SPA_FEATURES; f++) {
3673 uint64_t refcount;
3674
3675 if (!(spa_feature_table[f].fi_flags &
3676 ZFEATURE_FLAG_PER_DATASET) ||
3677 !spa_feature_is_enabled(spa, f)) {
3678 ASSERT0(dataset_feature_count[f]);
3679 continue;
3680 }
3681 if (feature_get_refcount(spa, &spa_feature_table[f],
3682 &refcount) == ENOTSUP)
3683 continue;
3684 if (dataset_feature_count[f] != refcount) {
3685 (void) printf("%s feature refcount mismatch: "
3686 "%lld datasets != %lld refcount\n",
3687 spa_feature_table[f].fi_uname,
3688 (longlong_t)dataset_feature_count[f],
3689 (longlong_t)refcount);
3690 rc = 2;
3691 } else {
3692 (void) printf("Verified %s feature refcount "
3693 "of %llu is correct\n",
3694 spa_feature_table[f].fi_uname,
3695 (longlong_t)refcount);
3696 }
3697 }
3698 }
3699 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3700 rc = dump_block_stats(spa);
3701
3702 if (rc == 0)
3703 rc = verify_spacemap_refcounts(spa);
3704
3705 if (dump_opt['s'])
3706 show_pool_stats(spa);
3707
3708 if (dump_opt['h'])
3709 dump_history(spa);
3710
3711 if (rc != 0) {
3712 dump_debug_buffer();
3713 exit(rc);
3714 }
3715 }
3716
3717 #define ZDB_FLAG_CHECKSUM 0x0001
3718 #define ZDB_FLAG_DECOMPRESS 0x0002
3719 #define ZDB_FLAG_BSWAP 0x0004
3720 #define ZDB_FLAG_GBH 0x0008
3721 #define ZDB_FLAG_INDIRECT 0x0010
3722 #define ZDB_FLAG_PHYS 0x0020
3723 #define ZDB_FLAG_RAW 0x0040
3724 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3725
3726 int flagbits[256];
3727
3728 static void
3729 zdb_print_blkptr(blkptr_t *bp, int flags)
3730 {
3731 char blkbuf[BP_SPRINTF_LEN];
3732
3733 if (flags & ZDB_FLAG_BSWAP)
3734 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3735
3736 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3737 (void) printf("%s\n", blkbuf);
3738 }
3739
3740 static void
3741 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3742 {
3743 int i;
3744
3745 for (i = 0; i < nbps; i++)
3746 zdb_print_blkptr(&bp[i], flags);
3747 }
3748
3749 static void
3750 zdb_dump_gbh(void *buf, int flags)
3751 {
3752 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3753 }
3754
3755 static void
3756 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3757 {
3758 if (flags & ZDB_FLAG_BSWAP)
3759 byteswap_uint64_array(buf, size);
3760 VERIFY(write(fileno(stdout), buf, size) == size);
3761 }
3762
3763 static void
3764 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3765 {
3766 uint64_t *d = (uint64_t *)buf;
3767 int nwords = size / sizeof (uint64_t);
3768 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3769 int i, j;
3770 char *hdr, *c;
3771
3772
3773 if (do_bswap)
3774 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3775 else
3776 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3777
3778 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3779
3780 #ifdef _LITTLE_ENDIAN
3781 /* correct the endianness */
3782 do_bswap = !do_bswap;
3783 #endif
3784 for (i = 0; i < nwords; i += 2) {
3785 (void) printf("%06llx: %016llx %016llx ",
3786 (u_longlong_t)(i * sizeof (uint64_t)),
3787 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3788 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3789
3790 c = (char *)&d[i];
3791 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3792 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3793 (void) printf("\n");
3794 }
3795 }
3796
3797 /*
3798 * There are two acceptable formats:
3799 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3800 * child[.child]* - For example: 0.1.1
3801 *
3802 * The second form can be used to specify arbitrary vdevs anywhere
3803 * in the hierarchy. For example, in a pool with a mirror of
3804 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3805 */
3806 static vdev_t *
3807 zdb_vdev_lookup(vdev_t *vdev, char *path)
3808 {
3809 char *s, *p, *q;
3810 int i;
3811
3812 if (vdev == NULL)
3813 return (NULL);
3814
3815 /* First, assume the x.x.x.x format */
3816 i = (int)strtoul(path, &s, 10);
3817 if (s == path || (s && *s != '.' && *s != '\0'))
3818 goto name;
3819 if (i < 0 || i >= vdev->vdev_children)
3820 return (NULL);
3821
3822 vdev = vdev->vdev_child[i];
3823 if (s && *s == '\0')
3824 return (vdev);
3825 return (zdb_vdev_lookup(vdev, s+1));
3826
3827 name:
3828 for (i = 0; i < vdev->vdev_children; i++) {
3829 vdev_t *vc = vdev->vdev_child[i];
3830
3831 if (vc->vdev_path == NULL) {
3832 vc = zdb_vdev_lookup(vc, path);
3833 if (vc == NULL)
3834 continue;
3835 else
3836 return (vc);
3837 }
3838
3839 p = strrchr(vc->vdev_path, '/');
3840 p = p ? p + 1 : vc->vdev_path;
3841 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3842
3843 if (strcmp(vc->vdev_path, path) == 0)
3844 return (vc);
3845 if (strcmp(p, path) == 0)
3846 return (vc);
3847 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3848 return (vc);
3849 }
3850
3851 return (NULL);
3852 }
3853
3854 /* ARGSUSED */
3855 static int
3856 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused)
3857 {
3858 return (random_get_pseudo_bytes(buf, len));
3859 }
3860
3861 /*
3862 * Read a block from a pool and print it out. The syntax of the
3863 * block descriptor is:
3864 *
3865 * pool:vdev_specifier:offset:size[:flags]
3866 *
3867 * pool - The name of the pool you wish to read from
3868 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3869 * offset - offset, in hex, in bytes
3870 * size - Amount of data to read, in hex, in bytes
3871 * flags - A string of characters specifying options
3872 * b: Decode a blkptr at given offset within block
3873 * *c: Calculate and display checksums
3874 * d: Decompress data before dumping
3875 * e: Byteswap data before dumping
3876 * g: Display data as a gang block header
3877 * i: Display as an indirect block
3878 * p: Do I/O to physical offset
3879 * r: Dump raw data to stdout
3880 *
3881 * * = not yet implemented
3882 */
3883 static void
3884 zdb_read_block(char *thing, spa_t *spa)
3885 {
3886 blkptr_t blk, *bp = &blk;
3887 dva_t *dva = bp->blk_dva;
3888 int flags = 0;
3889 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3890 zio_t *zio;
3891 vdev_t *vd;
3892 abd_t *pabd;
3893 void *lbuf, *buf;
3894 char *s, *p, *dup, *vdev, *flagstr;
3895 int i, error;
3896 boolean_t borrowed = B_FALSE;
3897
3898 dup = strdup(thing);
3899 s = strtok(dup, ":");
3900 vdev = s ? s : "";
3901 s = strtok(NULL, ":");
3902 offset = strtoull(s ? s : "", NULL, 16);
3903 s = strtok(NULL, ":");
3904 size = strtoull(s ? s : "", NULL, 16);
3905 s = strtok(NULL, ":");
3906 flagstr = s ? s : "";
3907
3908 s = NULL;
3909 if (size == 0)
3910 s = "size must not be zero";
3911 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3912 s = "size must be a multiple of sector size";
3913 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3914 s = "offset must be a multiple of sector size";
3915 if (s) {
3916 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3917 free(dup);
3918 return;
3919 }
3920
3921 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3922 for (i = 0; flagstr[i]; i++) {
3923 int bit = flagbits[(uchar_t)flagstr[i]];
3924
3925 if (bit == 0) {
3926 (void) printf("***Invalid flag: %c\n",
3927 flagstr[i]);
3928 continue;
3929 }
3930 flags |= bit;
3931
3932 /* If it's not something with an argument, keep going */
3933 if ((bit & (ZDB_FLAG_CHECKSUM |
3934 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3935 continue;
3936
3937 p = &flagstr[i + 1];
3938 if (bit == ZDB_FLAG_PRINT_BLKPTR) {
3939 blkptr_offset = strtoull(p, &p, 16);
3940 i = p - &flagstr[i + 1];
3941 }
3942 if (*p != ':' && *p != '\0') {
3943 (void) printf("***Invalid flag arg: '%s'\n", s);
3944 free(dup);
3945 return;
3946 }
3947 }
3948 }
3949
3950 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3951 if (vd == NULL) {
3952 (void) printf("***Invalid vdev: %s\n", vdev);
3953 free(dup);
3954 return;
3955 } else {
3956 if (vd->vdev_path)
3957 (void) fprintf(stderr, "Found vdev: %s\n",
3958 vd->vdev_path);
3959 else
3960 (void) fprintf(stderr, "Found vdev type: %s\n",
3961 vd->vdev_ops->vdev_op_type);
3962 }
3963
3964 psize = size;
3965 lsize = size;
3966
3967 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE);
3968 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3969
3970 BP_ZERO(bp);
3971
3972 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3973 DVA_SET_OFFSET(&dva[0], offset);
3974 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3975 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3976
3977 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3978
3979 BP_SET_LSIZE(bp, lsize);
3980 BP_SET_PSIZE(bp, psize);
3981 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3982 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3983 BP_SET_TYPE(bp, DMU_OT_NONE);
3984 BP_SET_LEVEL(bp, 0);
3985 BP_SET_DEDUP(bp, 0);
3986 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3987
3988 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3989 zio = zio_root(spa, NULL, NULL, 0);
3990
3991 if (vd == vd->vdev_top) {
3992 /*
3993 * Treat this as a normal block read.
3994 */
3995 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
3996 ZIO_PRIORITY_SYNC_READ,
3997 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3998 } else {
3999 /*
4000 * Treat this as a vdev child I/O.
4001 */
4002 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
4003 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
4004 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
4005 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
4006 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
4007 }
4008
4009 error = zio_wait(zio);
4010 spa_config_exit(spa, SCL_STATE, FTAG);
4011
4012 if (error) {
4013 (void) printf("Read of %s failed, error: %d\n", thing, error);
4014 goto out;
4015 }
4016
4017 if (flags & ZDB_FLAG_DECOMPRESS) {
4018 /*
4019 * We don't know how the data was compressed, so just try
4020 * every decompress function at every inflated blocksize.
4021 */
4022 enum zio_compress c;
4023 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4024 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4025
4026 abd_copy_to_buf(pbuf2, pabd, psize);
4027
4028 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize,
4029 random_get_pseudo_bytes_cb, NULL));
4030
4031 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
4032 SPA_MAXBLOCKSIZE - psize));
4033
4034 /*
4035 * XXX - On the one hand, with SPA_MAXBLOCKSIZE at 16MB,
4036 * this could take a while and we should let the user know
4037 * we are not stuck. On the other hand, printing progress
4038 * info gets old after a while. What to do?
4039 */
4040 for (lsize = psize + SPA_MINBLOCKSIZE;
4041 lsize <= SPA_MAXBLOCKSIZE; lsize += SPA_MINBLOCKSIZE) {
4042 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
4043 (void) fprintf(stderr,
4044 "Trying %05llx -> %05llx (%s)\n",
4045 (u_longlong_t)psize, (u_longlong_t)lsize,
4046 zio_compress_table[c].ci_name);
4047 if (zio_decompress_data(c, pabd,
4048 lbuf, psize, lsize) == 0 &&
4049 zio_decompress_data_buf(c, pbuf2,
4050 lbuf2, psize, lsize) == 0 &&
4051 bcmp(lbuf, lbuf2, lsize) == 0)
4052 break;
4053 }
4054 if (c != ZIO_COMPRESS_FUNCTIONS)
4055 break;
4056 }
4057
4058 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
4059 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
4060
4061 if (lsize <= psize) {
4062 (void) printf("Decompress of %s failed\n", thing);
4063 goto out;
4064 }
4065 buf = lbuf;
4066 size = lsize;
4067 } else {
4068 size = psize;
4069 buf = abd_borrow_buf_copy(pabd, size);
4070 borrowed = B_TRUE;
4071 }
4072
4073 if (flags & ZDB_FLAG_PRINT_BLKPTR)
4074 zdb_print_blkptr((blkptr_t *)(void *)
4075 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
4076 else if (flags & ZDB_FLAG_RAW)
4077 zdb_dump_block_raw(buf, size, flags);
4078 else if (flags & ZDB_FLAG_INDIRECT)
4079 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
4080 flags);
4081 else if (flags & ZDB_FLAG_GBH)
4082 zdb_dump_gbh(buf, flags);
4083 else
4084 zdb_dump_block(thing, buf, size, flags);
4085
4086 if (borrowed)
4087 abd_return_buf_copy(pabd, buf, size);
4088
4089 out:
4090 abd_free(pabd);
4091 umem_free(lbuf, SPA_MAXBLOCKSIZE);
4092 free(dup);
4093 }
4094
4095 static boolean_t
4096 pool_match(nvlist_t *cfg, char *tgt)
4097 {
4098 uint64_t v, guid = strtoull(tgt, NULL, 0);
4099 char *s;
4100
4101 if (guid != 0) {
4102 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
4103 return (v == guid);
4104 } else {
4105 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
4106 return (strcmp(s, tgt) == 0);
4107 }
4108 return (B_FALSE);
4109 }
4110
4111 static char *
4112 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
4113 {
4114 nvlist_t *pools;
4115 nvlist_t *match = NULL;
4116 char *name = NULL;
4117 char *sepp = NULL;
4118 char sep = '\0';
4119 int count = 0;
4120 importargs_t args = { 0 };
4121
4122 args.paths = dirc;
4123 args.path = dirv;
4124 args.can_be_active = B_TRUE;
4125
4126 if ((sepp = strpbrk(*target, "/@")) != NULL) {
4127 sep = *sepp;
4128 *sepp = '\0';
4129 }
4130
4131 pools = zpool_search_import(g_zfs, &args);
4132
4133 if (pools != NULL) {
4134 nvpair_t *elem = NULL;
4135 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
4136 verify(nvpair_value_nvlist(elem, configp) == 0);
4137 if (pool_match(*configp, *target)) {
4138 count++;
4139 if (match != NULL) {
4140 /* print previously found config */
4141 if (name != NULL) {
4142 (void) printf("%s\n", name);
4143 dump_nvlist(match, 8);
4144 name = NULL;
4145 }
4146 (void) printf("%s\n",
4147 nvpair_name(elem));
4148 dump_nvlist(*configp, 8);
4149 } else {
4150 match = *configp;
4151 name = nvpair_name(elem);
4152 }
4153 }
4154 }
4155 }
4156 if (count > 1)
4157 (void) fatal("\tMatched %d pools - use pool GUID "
4158 "instead of pool name or \n"
4159 "\tpool name part of a dataset name to select pool", count);
4160
4161 if (sepp)
4162 *sepp = sep;
4163 /*
4164 * If pool GUID was specified for pool id, replace it with pool name
4165 */
4166 if (name && (strstr(*target, name) != *target)) {
4167 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
4168
4169 *target = umem_alloc(sz, UMEM_NOFAIL);
4170 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
4171 }
4172
4173 *configp = name ? match : NULL;
4174
4175 return (name);
4176 }
4177
4178 int
4179 main(int argc, char **argv)
4180 {
4181 int i, c;
4182 struct rlimit rl = { 1024, 1024 };
4183 spa_t *spa = NULL;
4184 objset_t *os = NULL;
4185 int dump_all = 1;
4186 int verbose = 0;
4187 int error = 0;
4188 char **searchdirs = NULL;
4189 int nsearch = 0;
4190 char *target;
4191 nvlist_t *policy = NULL;
4192 uint64_t max_txg = UINT64_MAX;
4193 int flags = ZFS_IMPORT_MISSING_LOG;
4194 int rewind = ZPOOL_NEVER_REWIND;
4195 char *spa_config_path_env;
4196 boolean_t target_is_spa = B_TRUE;
4197
4198 (void) setrlimit(RLIMIT_NOFILE, &rl);
4199 (void) enable_extended_FILE_stdio(-1, -1);
4200
4201 dprintf_setup(&argc, argv);
4202
4203 /*
4204 * If there is an environment variable SPA_CONFIG_PATH it overrides
4205 * default spa_config_path setting. If -U flag is specified it will
4206 * override this environment variable settings once again.
4207 */
4208 spa_config_path_env = getenv("SPA_CONFIG_PATH");
4209 if (spa_config_path_env != NULL)
4210 spa_config_path = spa_config_path_env;
4211
4212 while ((c = getopt(argc, argv,
4213 "AbcCdDeFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
4214 switch (c) {
4215 case 'b':
4216 case 'c':
4217 case 'C':
4218 case 'd':
4219 case 'D':
4220 case 'G':
4221 case 'h':
4222 case 'i':
4223 case 'l':
4224 case 'm':
4225 case 'M':
4226 case 'O':
4227 case 'R':
4228 case 's':
4229 case 'S':
4230 case 'u':
4231 dump_opt[c]++;
4232 dump_all = 0;
4233 break;
4234 case 'A':
4235 case 'e':
4236 case 'F':
4237 case 'L':
4238 case 'P':
4239 case 'q':
4240 case 'X':
4241 dump_opt[c]++;
4242 break;
4243 /* NB: Sort single match options below. */
4244 case 'I':
4245 max_inflight = strtoull(optarg, NULL, 0);
4246 if (max_inflight == 0) {
4247 (void) fprintf(stderr, "maximum number "
4248 "of inflight I/Os must be greater "
4249 "than 0\n");
4250 usage();
4251 }
4252 break;
4253 case 'o':
4254 error = set_global_var(optarg);
4255 if (error != 0)
4256 usage();
4257 break;
4258 case 'p':
4259 if (searchdirs == NULL) {
4260 searchdirs = umem_alloc(sizeof (char *),
4261 UMEM_NOFAIL);
4262 } else {
4263 char **tmp = umem_alloc((nsearch + 1) *
4264 sizeof (char *), UMEM_NOFAIL);
4265 bcopy(searchdirs, tmp, nsearch *
4266 sizeof (char *));
4267 umem_free(searchdirs,
4268 nsearch * sizeof (char *));
4269 searchdirs = tmp;
4270 }
4271 searchdirs[nsearch++] = optarg;
4272 break;
4273 case 't':
4274 max_txg = strtoull(optarg, NULL, 0);
4275 if (max_txg < TXG_INITIAL) {
4276 (void) fprintf(stderr, "incorrect txg "
4277 "specified: %s\n", optarg);
4278 usage();
4279 }
4280 break;
4281 case 'U':
4282 spa_config_path = optarg;
4283 break;
4284 case 'v':
4285 verbose++;
4286 break;
4287 case 'V':
4288 flags = ZFS_IMPORT_VERBATIM;
4289 break;
4290 case 'x':
4291 vn_dumpdir = optarg;
4292 break;
4293 default:
4294 usage();
4295 break;
4296 }
4297 }
4298
4299 if (!dump_opt['e'] && searchdirs != NULL) {
4300 (void) fprintf(stderr, "-p option requires use of -e\n");
4301 usage();
4302 }
4303
4304 #if defined(_LP64)
4305 /*
4306 * ZDB does not typically re-read blocks; therefore limit the ARC
4307 * to 256 MB, which can be used entirely for metadata.
4308 */
4309 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
4310 #endif
4311
4312 /*
4313 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
4314 * "zdb -b" uses traversal prefetch which uses async reads.
4315 * For good performance, let several of them be active at once.
4316 */
4317 zfs_vdev_async_read_max_active = 10;
4318
4319 /*
4320 * Disable reference tracking for better performance.
4321 */
4322 reference_tracking_enable = B_FALSE;
4323
4324 kernel_init(FREAD);
4325 if ((g_zfs = libzfs_init()) == NULL) {
4326 (void) fprintf(stderr, "%s", libzfs_error_init(errno));
4327 return (1);
4328 }
4329
4330 if (dump_all)
4331 verbose = MAX(verbose, 1);
4332
4333 for (c = 0; c < 256; c++) {
4334 if (dump_all && strchr("AeFlLOPRSX", c) == NULL)
4335 dump_opt[c] = 1;
4336 if (dump_opt[c])
4337 dump_opt[c] += verbose;
4338 }
4339
4340 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
4341 zfs_recover = (dump_opt['A'] > 1);
4342
4343 argc -= optind;
4344 argv += optind;
4345
4346 if (argc < 2 && dump_opt['R'])
4347 usage();
4348 if (argc < 1) {
4349 if (!dump_opt['e'] && dump_opt['C']) {
4350 dump_cachefile(spa_config_path);
4351 return (0);
4352 }
4353 usage();
4354 }
4355
4356 if (dump_opt['l'])
4357 return (dump_label(argv[0]));
4358
4359 if (dump_opt['O']) {
4360 if (argc != 2)
4361 usage();
4362 dump_opt['v'] = verbose + 3;
4363 return (dump_path(argv[0], argv[1]));
4364 }
4365
4366 if (dump_opt['X'] || dump_opt['F'])
4367 rewind = ZPOOL_DO_REWIND |
4368 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
4369
4370 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
4371 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
4372 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
4373 fatal("internal error: %s", strerror(ENOMEM));
4374
4375 error = 0;
4376 target = argv[0];
4377
4378 if (dump_opt['e']) {
4379 nvlist_t *cfg = NULL;
4380 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
4381
4382 error = ENOENT;
4383 if (name) {
4384 if (dump_opt['C'] > 1) {
4385 (void) printf("\nConfiguration for import:\n");
4386 dump_nvlist(cfg, 8);
4387 }
4388 if (nvlist_add_nvlist(cfg,
4389 ZPOOL_REWIND_POLICY, policy) != 0) {
4390 fatal("can't open '%s': %s",
4391 target, strerror(ENOMEM));
4392 }
4393 error = spa_import(name, cfg, NULL, flags);
4394 }
4395 }
4396
4397 if (strpbrk(target, "/@") != NULL) {
4398 size_t targetlen;
4399
4400 target_is_spa = B_FALSE;
4401 targetlen = strlen(target);
4402 if (targetlen && target[targetlen - 1] == '/')
4403 target[targetlen - 1] = '\0';
4404 }
4405
4406 if (error == 0) {
4407 if (target_is_spa || dump_opt['R']) {
4408 error = spa_open_rewind(target, &spa, FTAG, policy,
4409 NULL);
4410 if (error) {
4411 /*
4412 * If we're missing the log device then
4413 * try opening the pool after clearing the
4414 * log state.
4415 */
4416 mutex_enter(&spa_namespace_lock);
4417 if ((spa = spa_lookup(target)) != NULL &&
4418 spa->spa_log_state == SPA_LOG_MISSING) {
4419 spa->spa_log_state = SPA_LOG_CLEAR;
4420 error = 0;
4421 }
4422 mutex_exit(&spa_namespace_lock);
4423
4424 if (!error) {
4425 error = spa_open_rewind(target, &spa,
4426 FTAG, policy, NULL);
4427 }
4428 }
4429 } else {
4430 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
4431 }
4432 }
4433 nvlist_free(policy);
4434
4435 if (error)
4436 fatal("can't open '%s': %s", target, strerror(error));
4437
4438 argv++;
4439 argc--;
4440 if (!dump_opt['R']) {
4441 if (argc > 0) {
4442 zopt_objects = argc;
4443 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
4444 for (i = 0; i < zopt_objects; i++) {
4445 errno = 0;
4446 zopt_object[i] = strtoull(argv[i], NULL, 0);
4447 if (zopt_object[i] == 0 && errno != 0)
4448 fatal("bad number %s: %s",
4449 argv[i], strerror(errno));
4450 }
4451 }
4452 if (os != NULL) {
4453 dump_dir(os);
4454 } else if (zopt_objects > 0 && !dump_opt['m']) {
4455 dump_dir(spa->spa_meta_objset);
4456 } else {
4457 dump_zpool(spa);
4458 }
4459 } else {
4460 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
4461 flagbits['c'] = ZDB_FLAG_CHECKSUM;
4462 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
4463 flagbits['e'] = ZDB_FLAG_BSWAP;
4464 flagbits['g'] = ZDB_FLAG_GBH;
4465 flagbits['i'] = ZDB_FLAG_INDIRECT;
4466 flagbits['p'] = ZDB_FLAG_PHYS;
4467 flagbits['r'] = ZDB_FLAG_RAW;
4468
4469 for (i = 0; i < argc; i++)
4470 zdb_read_block(argv[i], spa);
4471 }
4472
4473 if (os != NULL)
4474 close_objset(os, FTAG);
4475 else
4476 spa_close(spa, FTAG);
4477
4478 fuid_table_destroy();
4479
4480 dump_debug_buffer();
4481
4482 libzfs_fini(g_zfs);
4483 kernel_fini();
4484
4485 return (0);
4486 }
OpenZFS on Linux and FreeBSD