?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
remove xvm/ipagent
[unleashed.git] / usr / src / cmd / zdb / zdb.c
blob3dbc1dc8cedd3ef4130a64a4cf6d6aacbdd64436
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2017 Nexenta Systems, Inc.
27 */
28
29 #include <stdio.h>
30 #include <unistd.h>
31 #include <stdio_ext.h>
32 #include <stdlib.h>
33 #include <ctype.h>
34 #include <sys/zfs_context.h>
35 #include <sys/spa.h>
36 #include <sys/spa_impl.h>
37 #include <sys/dmu.h>
38 #include <sys/zap.h>
39 #include <sys/fs/zfs.h>
40 #include <sys/zfs_znode.h>
41 #include <sys/zfs_sa.h>
42 #include <sys/sa.h>
43 #include <sys/sa_impl.h>
44 #include <sys/vdev.h>
45 #include <sys/vdev_impl.h>
46 #include <sys/metaslab_impl.h>
47 #include <sys/dmu_objset.h>
48 #include <sys/dsl_dir.h>
49 #include <sys/dsl_dataset.h>
50 #include <sys/dsl_pool.h>
51 #include <sys/dbuf.h>
52 #include <sys/zil.h>
53 #include <sys/zil_impl.h>
54 #include <sys/stat.h>
55 #include <sys/resource.h>
56 #include <sys/dmu_traverse.h>
57 #include <sys/zio_checksum.h>
58 #include <sys/zio_compress.h>
59 #include <sys/zfs_fuid.h>
60 #include <sys/arc.h>
61 #include <sys/ddt.h>
62 #include <sys/zfeature.h>
63 #include <zfs_comutil.h>
64 #undef verify
65 #include <libzfs.h>
66
67 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
68 zio_compress_table[(idx)].ci_name : "UNKNOWN")
69 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
70 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
71 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
72 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
73 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
74 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
75 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
76 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
77
78 extern int reference_tracking_enable;
79 extern boolean_t zfs_recover;
80 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
81 extern int zfs_vdev_async_read_max_active;
82
83 const char cmdname[] = "zdb";
84 uint8_t dump_opt[256];
85
86 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
87
88 extern void dump_intent_log(zilog_t *);
89 uint64_t *zopt_object = NULL;
90 int zopt_objects = 0;
91 libzfs_handle_t *g_zfs;
92 uint64_t max_inflight = 1000;
93
94 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
95
96 /*
97 * These libumem hooks provide a reasonable set of defaults for the allocator's
98 * debugging facilities.
99 */
100 const char *
101 _umem_debug_init()
102 {
103 return ("default,verbose"); /* $UMEM_DEBUG setting */
104 }
105
106 const char *
107 _umem_logging_init(void)
108 {
109 return ("fail,contents"); /* $UMEM_LOGGING setting */
110 }
111
112 static void
113 usage(void)
114 {
115 (void) fprintf(stderr,
116 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-p <path> ...]] "
117 "[-I <inflight I/Os>]\n"
118 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
119 "\t\t[<poolname> [<object> ...]]\n"
120 "\t%s [-AdiPv] [-e [-p <path> ...]] [-U <cache>] <dataset> "
121 "[<object> ...]\n"
122 "\t%s -C [-A] [-U <cache>]\n"
123 "\t%s -l [-Aqu] <device>\n"
124 "\t%s -m [-AFLPX] [-e [-p <path> ...]] [-t <txg>] [-U <cache>]\n"
125 "\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
126 "\t%s -O <dataset> <path>\n"
127 "\t%s -R [-A] [-e [-p <path> ...]] [-U <cache>]\n"
128 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
129 "\t%s -S [-AP] [-e [-p <path> ...]] [-U <cache>] <poolname>\n\n",
130 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
131 cmdname);
132
133 (void) fprintf(stderr, " Dataset name must include at least one "
134 "separator character '/' or '@'\n");
135 (void) fprintf(stderr, " If dataset name is specified, only that "
136 "dataset is dumped\n");
137 (void) fprintf(stderr, " If object numbers are specified, only "
138 "those objects are dumped\n\n");
139 (void) fprintf(stderr, " Options to control amount of output:\n");
140 (void) fprintf(stderr, " -b block statistics\n");
141 (void) fprintf(stderr, " -c checksum all metadata (twice for "
142 "all data) blocks\n");
143 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
144 (void) fprintf(stderr, " -d dataset(s)\n");
145 (void) fprintf(stderr, " -D dedup statistics\n");
146 (void) fprintf(stderr, " -h pool history\n");
147 (void) fprintf(stderr, " -i intent logs\n");
148 (void) fprintf(stderr, " -l read label contents\n");
149 (void) fprintf(stderr, " -L disable leak tracking (do not "
150 "load spacemaps)\n");
151 (void) fprintf(stderr, " -m metaslabs\n");
152 (void) fprintf(stderr, " -M metaslab groups\n");
153 (void) fprintf(stderr, " -O perform object lookups by path\n");
154 (void) fprintf(stderr, " -R read and display block from a "
155 "device\n");
156 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
157 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
158 (void) fprintf(stderr, " -v verbose (applies to all "
159 "others)\n\n");
160 (void) fprintf(stderr, " Below options are intended for use "
161 "with other options:\n");
162 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
163 "panic recovery (-AA) or both (-AAA)\n");
164 (void) fprintf(stderr, " -e pool is exported/destroyed/"
165 "has altroot/not in a cachefile\n");
166 (void) fprintf(stderr, " -F attempt automatic rewind within "
167 "safe range of transaction groups\n");
168 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
169 "exiting\n");
170 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
171 "specify the maximum number of "
172 "checksumming I/Os [default is 200]\n");
173 (void) fprintf(stderr, " -o <variable>=<value> set global "
174 "variable to an unsigned 32-bit integer value\n");
175 (void) fprintf(stderr, " -p <path> -- use one or more with "
176 "-e to specify path to vdev dir\n");
177 (void) fprintf(stderr, " -P print numbers in parseable form\n");
178 (void) fprintf(stderr, " -q don't print label contents\n");
179 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
180 "searching for uberblocks\n");
181 (void) fprintf(stderr, " -u uberblock\n");
182 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
183 "cachefile\n");
184 (void) fprintf(stderr, " -x <dumpdir> -- "
185 "dump all read blocks into specified directory\n");
186 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
187 "work with dataset)\n\n");
188 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
189 "to make only that option verbose\n");
190 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
191 exit(1);
192 }
193
194 static void
195 dump_debug_buffer()
196 {
197 if (dump_opt['G']) {
198 (void) printf("\n");
199 zfs_dbgmsg_print("zdb");
200 }
201 }
202
203 /*
204 * Called for usage errors that are discovered after a call to spa_open(),
205 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
206 */
207
208 static void
209 fatal(const char *fmt, ...)
210 {
211 va_list ap;
212
213 va_start(ap, fmt);
214 (void) fprintf(stderr, "%s: ", cmdname);
215 (void) vfprintf(stderr, fmt, ap);
216 va_end(ap);
217 (void) fprintf(stderr, "\n");
218
219 dump_debug_buffer();
220
221 exit(1);
222 }
223
224 /* ARGSUSED */
225 static void
226 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
227 {
228 nvlist_t *nv;
229 size_t nvsize = *(uint64_t *)data;
230 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
231
232 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
233
234 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
235
236 umem_free(packed, nvsize);
237
238 dump_nvlist(nv, 8);
239
240 nvlist_free(nv);
241 }
242
243 /* ARGSUSED */
244 static void
245 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
246 {
247 spa_history_phys_t *shp = data;
248
249 if (shp == NULL)
250 return;
251
252 (void) printf("\t\tpool_create_len = %llu\n",
253 (u_longlong_t)shp->sh_pool_create_len);
254 (void) printf("\t\tphys_max_off = %llu\n",
255 (u_longlong_t)shp->sh_phys_max_off);
256 (void) printf("\t\tbof = %llu\n",
257 (u_longlong_t)shp->sh_bof);
258 (void) printf("\t\teof = %llu\n",
259 (u_longlong_t)shp->sh_eof);
260 (void) printf("\t\trecords_lost = %llu\n",
261 (u_longlong_t)shp->sh_records_lost);
262 }
263
264 static void
265 zdb_nicenum(uint64_t num, char *buf)
266 {
267 if (dump_opt['P'])
268 (void) sprintf(buf, "%llu", (longlong_t)num);
269 else
270 nicenum(num, buf);
271 }
272
273 const char histo_stars[] = "****************************************";
274 const int histo_width = sizeof (histo_stars) - 1;
275
276 static void
277 dump_histogram(const uint64_t *histo, int size, int offset)
278 {
279 int i;
280 int minidx = size - 1;
281 int maxidx = 0;
282 uint64_t max = 0;
283
284 for (i = 0; i < size; i++) {
285 if (histo[i] > max)
286 max = histo[i];
287 if (histo[i] > 0 && i > maxidx)
288 maxidx = i;
289 if (histo[i] > 0 && i < minidx)
290 minidx = i;
291 }
292
293 if (max < histo_width)
294 max = histo_width;
295
296 for (i = minidx; i <= maxidx; i++) {
297 (void) printf("\t\t\t%3u: %6llu %s\n",
298 i + offset, (u_longlong_t)histo[i],
299 &histo_stars[(max - histo[i]) * histo_width / max]);
300 }
301 }
302
303 static void
304 dump_zap_stats(objset_t *os, uint64_t object)
305 {
306 int error;
307 zap_stats_t zs;
308
309 error = zap_get_stats(os, object, &zs);
310 if (error)
311 return;
312
313 if (zs.zs_ptrtbl_len == 0) {
314 ASSERT(zs.zs_num_blocks == 1);
315 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
316 (u_longlong_t)zs.zs_blocksize,
317 (u_longlong_t)zs.zs_num_entries);
318 return;
319 }
320
321 (void) printf("\tFat ZAP stats:\n");
322
323 (void) printf("\t\tPointer table:\n");
324 (void) printf("\t\t\t%llu elements\n",
325 (u_longlong_t)zs.zs_ptrtbl_len);
326 (void) printf("\t\t\tzt_blk: %llu\n",
327 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
328 (void) printf("\t\t\tzt_numblks: %llu\n",
329 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
330 (void) printf("\t\t\tzt_shift: %llu\n",
331 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
332 (void) printf("\t\t\tzt_blks_copied: %llu\n",
333 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
334 (void) printf("\t\t\tzt_nextblk: %llu\n",
335 (u_longlong_t)zs.zs_ptrtbl_nextblk);
336
337 (void) printf("\t\tZAP entries: %llu\n",
338 (u_longlong_t)zs.zs_num_entries);
339 (void) printf("\t\tLeaf blocks: %llu\n",
340 (u_longlong_t)zs.zs_num_leafs);
341 (void) printf("\t\tTotal blocks: %llu\n",
342 (u_longlong_t)zs.zs_num_blocks);
343 (void) printf("\t\tzap_block_type: 0x%llx\n",
344 (u_longlong_t)zs.zs_block_type);
345 (void) printf("\t\tzap_magic: 0x%llx\n",
346 (u_longlong_t)zs.zs_magic);
347 (void) printf("\t\tzap_salt: 0x%llx\n",
348 (u_longlong_t)zs.zs_salt);
349
350 (void) printf("\t\tLeafs with 2^n pointers:\n");
351 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
352
353 (void) printf("\t\tBlocks with n*5 entries:\n");
354 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
355
356 (void) printf("\t\tBlocks n/10 full:\n");
357 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
358
359 (void) printf("\t\tEntries with n chunks:\n");
360 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
361
362 (void) printf("\t\tBuckets with n entries:\n");
363 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
364 }
365
366 /*ARGSUSED*/
367 static void
368 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
369 {
370 }
371
372 /*ARGSUSED*/
373 static void
374 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
375 {
376 (void) printf("\tUNKNOWN OBJECT TYPE\n");
377 }
378
379 /*ARGSUSED*/
380 void
381 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
382 {
383 }
384
385 /*ARGSUSED*/
386 static void
387 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
388 {
389 }
390
391 /*ARGSUSED*/
392 static void
393 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
394 {
395 zap_cursor_t zc;
396 zap_attribute_t attr;
397 void *prop;
398 int i;
399
400 dump_zap_stats(os, object);
401 (void) printf("\n");
402
403 for (zap_cursor_init(&zc, os, object);
404 zap_cursor_retrieve(&zc, &attr) == 0;
405 zap_cursor_advance(&zc)) {
406 (void) printf("\t\t%s = ", attr.za_name);
407 if (attr.za_num_integers == 0) {
408 (void) printf("\n");
409 continue;
410 }
411 prop = umem_zalloc(attr.za_num_integers *
412 attr.za_integer_length, UMEM_NOFAIL);
413 (void) zap_lookup(os, object, attr.za_name,
414 attr.za_integer_length, attr.za_num_integers, prop);
415 if (attr.za_integer_length == 1) {
416 (void) printf("%s", (char *)prop);
417 } else {
418 for (i = 0; i < attr.za_num_integers; i++) {
419 switch (attr.za_integer_length) {
420 case 2:
421 (void) printf("%u ",
422 ((uint16_t *)prop)[i]);
423 break;
424 case 4:
425 (void) printf("%u ",
426 ((uint32_t *)prop)[i]);
427 break;
428 case 8:
429 (void) printf("%lld ",
430 (u_longlong_t)((int64_t *)prop)[i]);
431 break;
432 }
433 }
434 }
435 (void) printf("\n");
436 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
437 }
438 zap_cursor_fini(&zc);
439 }
440
441 static void
442 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
443 {
444 bpobj_phys_t *bpop = data;
445 char bytes[32], comp[32], uncomp[32];
446
447 if (bpop == NULL)
448 return;
449
450 zdb_nicenum(bpop->bpo_bytes, bytes);
451 zdb_nicenum(bpop->bpo_comp, comp);
452 zdb_nicenum(bpop->bpo_uncomp, uncomp);
453
454 (void) printf("\t\tnum_blkptrs = %llu\n",
455 (u_longlong_t)bpop->bpo_num_blkptrs);
456 (void) printf("\t\tbytes = %s\n", bytes);
457 if (size >= BPOBJ_SIZE_V1) {
458 (void) printf("\t\tcomp = %s\n", comp);
459 (void) printf("\t\tuncomp = %s\n", uncomp);
460 }
461 if (size >= sizeof (*bpop)) {
462 (void) printf("\t\tsubobjs = %llu\n",
463 (u_longlong_t)bpop->bpo_subobjs);
464 (void) printf("\t\tnum_subobjs = %llu\n",
465 (u_longlong_t)bpop->bpo_num_subobjs);
466 }
467
468 if (dump_opt['d'] < 5)
469 return;
470
471 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
472 char blkbuf[BP_SPRINTF_LEN];
473 blkptr_t bp;
474
475 int err = dmu_read(os, object,
476 i * sizeof (bp), sizeof (bp), &bp, 0);
477 if (err != 0) {
478 (void) printf("got error %u from dmu_read\n", err);
479 break;
480 }
481 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
482 (void) printf("\t%s\n", blkbuf);
483 }
484 }
485
486 /* ARGSUSED */
487 static void
488 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
489 {
490 dmu_object_info_t doi;
491
492 VERIFY0(dmu_object_info(os, object, &doi));
493 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
494
495 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
496 if (err != 0) {
497 (void) printf("got error %u from dmu_read\n", err);
498 kmem_free(subobjs, doi.doi_max_offset);
499 return;
500 }
501
502 int64_t last_nonzero = -1;
503 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
504 if (subobjs[i] != 0)
505 last_nonzero = i;
506 }
507
508 for (int64_t i = 0; i <= last_nonzero; i++) {
509 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
510 }
511 kmem_free(subobjs, doi.doi_max_offset);
512 }
513
514 /*ARGSUSED*/
515 static void
516 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
517 {
518 dump_zap_stats(os, object);
519 /* contents are printed elsewhere, properly decoded */
520 }
521
522 /*ARGSUSED*/
523 static void
524 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
525 {
526 zap_cursor_t zc;
527 zap_attribute_t attr;
528
529 dump_zap_stats(os, object);
530 (void) printf("\n");
531
532 for (zap_cursor_init(&zc, os, object);
533 zap_cursor_retrieve(&zc, &attr) == 0;
534 zap_cursor_advance(&zc)) {
535 (void) printf("\t\t%s = ", attr.za_name);
536 if (attr.za_num_integers == 0) {
537 (void) printf("\n");
538 continue;
539 }
540 (void) printf(" %llx : [%d:%d:%d]\n",
541 (u_longlong_t)attr.za_first_integer,
542 (int)ATTR_LENGTH(attr.za_first_integer),
543 (int)ATTR_BSWAP(attr.za_first_integer),
544 (int)ATTR_NUM(attr.za_first_integer));
545 }
546 zap_cursor_fini(&zc);
547 }
548
549 /*ARGSUSED*/
550 static void
551 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
552 {
553 zap_cursor_t zc;
554 zap_attribute_t attr;
555 uint16_t *layout_attrs;
556 int i;
557
558 dump_zap_stats(os, object);
559 (void) printf("\n");
560
561 for (zap_cursor_init(&zc, os, object);
562 zap_cursor_retrieve(&zc, &attr) == 0;
563 zap_cursor_advance(&zc)) {
564 (void) printf("\t\t%s = [", attr.za_name);
565 if (attr.za_num_integers == 0) {
566 (void) printf("\n");
567 continue;
568 }
569
570 VERIFY(attr.za_integer_length == 2);
571 layout_attrs = umem_zalloc(attr.za_num_integers *
572 attr.za_integer_length, UMEM_NOFAIL);
573
574 VERIFY(zap_lookup(os, object, attr.za_name,
575 attr.za_integer_length,
576 attr.za_num_integers, layout_attrs) == 0);
577
578 for (i = 0; i != attr.za_num_integers; i++)
579 (void) printf(" %d ", (int)layout_attrs[i]);
580 (void) printf("]\n");
581 umem_free(layout_attrs,
582 attr.za_num_integers * attr.za_integer_length);
583 }
584 zap_cursor_fini(&zc);
585 }
586
587 /*ARGSUSED*/
588 static void
589 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
590 {
591 zap_cursor_t zc;
592 zap_attribute_t attr;
593 const char *typenames[] = {
594 /* 0 */ "not specified",
595 /* 1 */ "FIFO",
596 /* 2 */ "Character Device",
597 /* 3 */ "3 (invalid)",
598 /* 4 */ "Directory",
599 /* 5 */ "5 (invalid)",
600 /* 6 */ "Block Device",
601 /* 7 */ "7 (invalid)",
602 /* 8 */ "Regular File",
603 /* 9 */ "9 (invalid)",
604 /* 10 */ "Symbolic Link",
605 /* 11 */ "11 (invalid)",
606 /* 12 */ "Socket",
607 /* 13 */ "Door",
608 /* 14 */ "Event Port",
609 /* 15 */ "15 (invalid)",
610 };
611
612 dump_zap_stats(os, object);
613 (void) printf("\n");
614
615 for (zap_cursor_init(&zc, os, object);
616 zap_cursor_retrieve(&zc, &attr) == 0;
617 zap_cursor_advance(&zc)) {
618 (void) printf("\t\t%s = %lld (type: %s)\n",
619 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
620 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
621 }
622 zap_cursor_fini(&zc);
623 }
624
625 int
626 get_dtl_refcount(vdev_t *vd)
627 {
628 int refcount = 0;
629
630 if (vd->vdev_ops->vdev_op_leaf) {
631 space_map_t *sm = vd->vdev_dtl_sm;
632
633 if (sm != NULL &&
634 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
635 return (1);
636 return (0);
637 }
638
639 for (int c = 0; c < vd->vdev_children; c++)
640 refcount += get_dtl_refcount(vd->vdev_child[c]);
641 return (refcount);
642 }
643
644 int
645 get_metaslab_refcount(vdev_t *vd)
646 {
647 int refcount = 0;
648
649 if (vd->vdev_top == vd && !vd->vdev_removing) {
650 for (int m = 0; m < vd->vdev_ms_count; m++) {
651 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
652
653 if (sm != NULL &&
654 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
655 refcount++;
656 }
657 }
658 for (int c = 0; c < vd->vdev_children; c++)
659 refcount += get_metaslab_refcount(vd->vdev_child[c]);
660
661 return (refcount);
662 }
663
664 static int
665 verify_spacemap_refcounts(spa_t *spa)
666 {
667 uint64_t expected_refcount = 0;
668 uint64_t actual_refcount;
669
670 (void) feature_get_refcount(spa,
671 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
672 &expected_refcount);
673 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
674 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
675
676 if (expected_refcount != actual_refcount) {
677 (void) printf("space map refcount mismatch: expected %lld != "
678 "actual %lld\n",
679 (longlong_t)expected_refcount,
680 (longlong_t)actual_refcount);
681 return (2);
682 }
683 return (0);
684 }
685
686 static void
687 dump_spacemap(objset_t *os, space_map_t *sm)
688 {
689 uint64_t alloc, offset, entry;
690 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
691 "INVALID", "INVALID", "INVALID", "INVALID" };
692
693 if (sm == NULL)
694 return;
695
696 /*
697 * Print out the freelist entries in both encoded and decoded form.
698 */
699 alloc = 0;
700 for (offset = 0; offset < space_map_length(sm);
701 offset += sizeof (entry)) {
702 uint8_t mapshift = sm->sm_shift;
703
704 VERIFY0(dmu_read(os, space_map_object(sm), offset,
705 sizeof (entry), &entry, DMU_READ_PREFETCH));
706 if (SM_DEBUG_DECODE(entry)) {
707
708 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
709 (u_longlong_t)(offset / sizeof (entry)),
710 ddata[SM_DEBUG_ACTION_DECODE(entry)],
711 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
712 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
713 } else {
714 (void) printf("\t [%6llu] %c range:"
715 " %010llx-%010llx size: %06llx\n",
716 (u_longlong_t)(offset / sizeof (entry)),
717 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
718 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
719 mapshift) + sm->sm_start),
720 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
721 mapshift) + sm->sm_start +
722 (SM_RUN_DECODE(entry) << mapshift)),
723 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
724 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
725 alloc += SM_RUN_DECODE(entry) << mapshift;
726 else
727 alloc -= SM_RUN_DECODE(entry) << mapshift;
728 }
729 }
730 if (alloc != space_map_allocated(sm)) {
731 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
732 "with space map summary (%llu)\n",
733 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
734 }
735 }
736
737 static void
738 dump_metaslab_stats(metaslab_t *msp)
739 {
740 char maxbuf[32];
741 range_tree_t *rt = msp->ms_tree;
742 avl_tree_t *t = &msp->ms_size_tree;
743 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
744
745 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
746
747 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
748 "segments", avl_numnodes(t), "maxsize", maxbuf,
749 "freepct", free_pct);
750 (void) printf("\tIn-memory histogram:\n");
751 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
752 }
753
754 static void
755 dump_metaslab(metaslab_t *msp)
756 {
757 vdev_t *vd = msp->ms_group->mg_vd;
758 spa_t *spa = vd->vdev_spa;
759 space_map_t *sm = msp->ms_sm;
760 char freebuf[32];
761
762 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
763
764 (void) printf(
765 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
766 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
767 (u_longlong_t)space_map_object(sm), freebuf);
768
769 if (dump_opt['m'] > 2 && !dump_opt['L']) {
770 mutex_enter(&msp->ms_lock);
771 metaslab_load_wait(msp);
772 if (!msp->ms_loaded) {
773 VERIFY0(metaslab_load(msp));
774 range_tree_stat_verify(msp->ms_tree);
775 }
776 dump_metaslab_stats(msp);
777 metaslab_unload(msp);
778 mutex_exit(&msp->ms_lock);
779 }
780
781 if (dump_opt['m'] > 1 && sm != NULL &&
782 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
783 /*
784 * The space map histogram represents free space in chunks
785 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
786 */
787 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
788 (u_longlong_t)msp->ms_fragmentation);
789 dump_histogram(sm->sm_phys->smp_histogram,
790 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
791 }
792
793 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
794 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
795
796 mutex_enter(&msp->ms_lock);
797 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
798 mutex_exit(&msp->ms_lock);
799 }
800 }
801
802 static void
803 print_vdev_metaslab_header(vdev_t *vd)
804 {
805 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
806 (u_longlong_t)vd->vdev_id,
807 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
808 "offset", "spacemap", "free");
809 (void) printf("\t%15s %19s %15s %10s\n",
810 "---------------", "-------------------",
811 "---------------", "-------------");
812 }
813
814 static void
815 dump_metaslab_groups(spa_t *spa)
816 {
817 vdev_t *rvd = spa->spa_root_vdev;
818 metaslab_class_t *mc = spa_normal_class(spa);
819 uint64_t fragmentation;
820
821 metaslab_class_histogram_verify(mc);
822
823 for (int c = 0; c < rvd->vdev_children; c++) {
824 vdev_t *tvd = rvd->vdev_child[c];
825 metaslab_group_t *mg = tvd->vdev_mg;
826
827 if (mg->mg_class != mc)
828 continue;
829
830 metaslab_group_histogram_verify(mg);
831 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
832
833 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
834 "fragmentation",
835 (u_longlong_t)tvd->vdev_id,
836 (u_longlong_t)tvd->vdev_ms_count);
837 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
838 (void) printf("%3s\n", "-");
839 } else {
840 (void) printf("%3llu%%\n",
841 (u_longlong_t)mg->mg_fragmentation);
842 }
843 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
844 }
845
846 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
847 fragmentation = metaslab_class_fragmentation(mc);
848 if (fragmentation == ZFS_FRAG_INVALID)
849 (void) printf("\t%3s\n", "-");
850 else
851 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
852 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
853 }
854
855 static void
856 dump_metaslabs(spa_t *spa)
857 {
858 vdev_t *vd, *rvd = spa->spa_root_vdev;
859 uint64_t m, c = 0, children = rvd->vdev_children;
860
861 (void) printf("\nMetaslabs:\n");
862
863 if (!dump_opt['d'] && zopt_objects > 0) {
864 c = zopt_object[0];
865
866 if (c >= children)
867 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
868
869 if (zopt_objects > 1) {
870 vd = rvd->vdev_child[c];
871 print_vdev_metaslab_header(vd);
872
873 for (m = 1; m < zopt_objects; m++) {
874 if (zopt_object[m] < vd->vdev_ms_count)
875 dump_metaslab(
876 vd->vdev_ms[zopt_object[m]]);
877 else
878 (void) fprintf(stderr, "bad metaslab "
879 "number %llu\n",
880 (u_longlong_t)zopt_object[m]);
881 }
882 (void) printf("\n");
883 return;
884 }
885 children = c + 1;
886 }
887 for (; c < children; c++) {
888 vd = rvd->vdev_child[c];
889 print_vdev_metaslab_header(vd);
890
891 for (m = 0; m < vd->vdev_ms_count; m++)
892 dump_metaslab(vd->vdev_ms[m]);
893 (void) printf("\n");
894 }
895 }
896
897 static void
898 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
899 {
900 const ddt_phys_t *ddp = dde->dde_phys;
901 const ddt_key_t *ddk = &dde->dde_key;
902 char *types[4] = { "ditto", "single", "double", "triple" };
903 char blkbuf[BP_SPRINTF_LEN];
904 blkptr_t blk;
905
906 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
907 if (ddp->ddp_phys_birth == 0)
908 continue;
909 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
910 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
911 (void) printf("index %llx refcnt %llu %s %s\n",
912 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
913 types[p], blkbuf);
914 }
915 }
916
917 static void
918 dump_dedup_ratio(const ddt_stat_t *dds)
919 {
920 double rL, rP, rD, D, dedup, compress, copies;
921
922 if (dds->dds_blocks == 0)
923 return;
924
925 rL = (double)dds->dds_ref_lsize;
926 rP = (double)dds->dds_ref_psize;
927 rD = (double)dds->dds_ref_dsize;
928 D = (double)dds->dds_dsize;
929
930 dedup = rD / D;
931 compress = rL / rP;
932 copies = rD / rP;
933
934 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
935 "dedup * compress / copies = %.2f\n\n",
936 dedup, compress, copies, dedup * compress / copies);
937 }
938
939 static void
940 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
941 {
942 char name[DDT_NAMELEN];
943 ddt_entry_t dde;
944 uint64_t walk = 0;
945 dmu_object_info_t doi;
946 uint64_t count, dspace, mspace;
947 int error;
948
949 error = ddt_object_info(ddt, type, class, &doi);
950
951 if (error == ENOENT)
952 return;
953 ASSERT(error == 0);
954
955 if ((count = ddt_object_count(ddt, type, class)) == 0)
956 return;
957
958 dspace = doi.doi_physical_blocks_512 << 9;
959 mspace = doi.doi_fill_count * doi.doi_data_block_size;
960
961 ddt_object_name(ddt, type, class, name);
962
963 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
964 name,
965 (u_longlong_t)count,
966 (u_longlong_t)(dspace / count),
967 (u_longlong_t)(mspace / count));
968
969 if (dump_opt['D'] < 3)
970 return;
971
972 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
973
974 if (dump_opt['D'] < 4)
975 return;
976
977 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
978 return;
979
980 (void) printf("%s contents:\n\n", name);
981
982 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
983 dump_dde(ddt, &dde, walk);
984
985 ASSERT(error == ENOENT);
986
987 (void) printf("\n");
988 }
989
990 static void
991 dump_all_ddts(spa_t *spa)
992 {
993 ddt_histogram_t ddh_total = { 0 };
994 ddt_stat_t dds_total = { 0 };
995
996 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
997 ddt_t *ddt = spa->spa_ddt[c];
998 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
999 for (enum ddt_class class = 0; class < DDT_CLASSES;
1000 class++) {
1001 dump_ddt(ddt, type, class);
1002 }
1003 }
1004 }
1005
1006 ddt_get_dedup_stats(spa, &dds_total);
1007
1008 if (dds_total.dds_blocks == 0) {
1009 (void) printf("All DDTs are empty\n");
1010 return;
1011 }
1012
1013 (void) printf("\n");
1014
1015 if (dump_opt['D'] > 1) {
1016 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1017 ddt_get_dedup_histogram(spa, &ddh_total);
1018 zpool_dump_ddt(&dds_total, &ddh_total);
1019 }
1020
1021 dump_dedup_ratio(&dds_total);
1022 }
1023
1024 static void
1025 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1026 {
1027 char *prefix = arg;
1028
1029 (void) printf("%s [%llu,%llu) length %llu\n",
1030 prefix,
1031 (u_longlong_t)start,
1032 (u_longlong_t)(start + size),
1033 (u_longlong_t)(size));
1034 }
1035
1036 static void
1037 dump_dtl(vdev_t *vd, int indent)
1038 {
1039 spa_t *spa = vd->vdev_spa;
1040 boolean_t required;
1041 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
1042 char prefix[256];
1043
1044 spa_vdev_state_enter(spa, SCL_NONE);
1045 required = vdev_dtl_required(vd);
1046 (void) spa_vdev_state_exit(spa, NULL, 0);
1047
1048 if (indent == 0)
1049 (void) printf("\nDirty time logs:\n\n");
1050
1051 (void) printf("\t%*s%s [%s]\n", indent, "",
1052 vd->vdev_path ? vd->vdev_path :
1053 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1054 required ? "DTL-required" : "DTL-expendable");
1055
1056 for (int t = 0; t < DTL_TYPES; t++) {
1057 range_tree_t *rt = vd->vdev_dtl[t];
1058 if (range_tree_space(rt) == 0)
1059 continue;
1060 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1061 indent + 2, "", name[t]);
1062 mutex_enter(rt->rt_lock);
1063 range_tree_walk(rt, dump_dtl_seg, prefix);
1064 mutex_exit(rt->rt_lock);
1065 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1066 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1067 }
1068
1069 for (int c = 0; c < vd->vdev_children; c++)
1070 dump_dtl(vd->vdev_child[c], indent + 4);
1071 }
1072
1073 static void
1074 dump_history(spa_t *spa)
1075 {
1076 nvlist_t **events = NULL;
1077 uint64_t resid, len, off = 0;
1078 uint_t num = 0;
1079 int error;
1080 time_t tsec;
1081 struct tm t;
1082 char tbuf[30];
1083 char internalstr[MAXPATHLEN];
1084
1085 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
1086 do {
1087 len = SPA_MAXBLOCKSIZE;
1088
1089 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1090 (void) fprintf(stderr, "Unable to read history: "
1091 "error %d\n", error);
1092 umem_free(buf, SPA_MAXBLOCKSIZE);
1093 return;
1094 }
1095
1096 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1097 break;
1098
1099 off -= resid;
1100 } while (len != 0);
1101 umem_free(buf, SPA_MAXBLOCKSIZE);
1102
1103 (void) printf("\nHistory:\n");
1104 for (int i = 0; i < num; i++) {
1105 uint64_t time, txg, ievent;
1106 char *cmd, *intstr;
1107 boolean_t printed = B_FALSE;
1108
1109 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1110 &time) != 0)
1111 goto next;
1112 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1113 &cmd) != 0) {
1114 if (nvlist_lookup_uint64(events[i],
1115 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1116 goto next;
1117 verify(nvlist_lookup_uint64(events[i],
1118 ZPOOL_HIST_TXG, &txg) == 0);
1119 verify(nvlist_lookup_string(events[i],
1120 ZPOOL_HIST_INT_STR, &intstr) == 0);
1121 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1122 goto next;
1123
1124 (void) snprintf(internalstr,
1125 sizeof (internalstr),
1126 "[internal %s txg:%lld] %s",
1127 zfs_history_event_names[ievent], txg,
1128 intstr);
1129 cmd = internalstr;
1130 }
1131 tsec = time;
1132 (void) localtime_r(&tsec, &t);
1133 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1134 (void) printf("%s %s\n", tbuf, cmd);
1135 printed = B_TRUE;
1136
1137 next:
1138 if (dump_opt['h'] > 1) {
1139 if (!printed)
1140 (void) printf("unrecognized record:\n");
1141 dump_nvlist(events[i], 2);
1142 }
1143 }
1144 }
1145
1146 /*ARGSUSED*/
1147 static void
1148 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1149 {
1150 }
1151
1152 static uint64_t
1153 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1154 const zbookmark_phys_t *zb)
1155 {
1156 if (dnp == NULL) {
1157 ASSERT(zb->zb_level < 0);
1158 if (zb->zb_object == 0)
1159 return (zb->zb_blkid);
1160 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1161 }
1162
1163 ASSERT(zb->zb_level >= 0);
1164
1165 return ((zb->zb_blkid <<
1166 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1167 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1168 }
1169
1170 static void
1171 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1172 {
1173 const dva_t *dva = bp->blk_dva;
1174 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1175
1176 if (dump_opt['b'] >= 6) {
1177 snprintf_blkptr(blkbuf, buflen, bp);
1178 return;
1179 }
1180
1181 if (BP_IS_EMBEDDED(bp)) {
1182 (void) sprintf(blkbuf,
1183 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1184 (int)BPE_GET_ETYPE(bp),
1185 (u_longlong_t)BPE_GET_LSIZE(bp),
1186 (u_longlong_t)BPE_GET_PSIZE(bp),
1187 (u_longlong_t)bp->blk_birth);
1188 return;
1189 }
1190
1191 blkbuf[0] = '\0';
1192 for (int i = 0; i < ndvas; i++)
1193 (void) snprintf(blkbuf + strlen(blkbuf),
1194 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1195 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1196 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1197 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1198
1199 if (BP_IS_HOLE(bp)) {
1200 (void) snprintf(blkbuf + strlen(blkbuf),
1201 buflen - strlen(blkbuf),
1202 "%llxL B=%llu",
1203 (u_longlong_t)BP_GET_LSIZE(bp),
1204 (u_longlong_t)bp->blk_birth);
1205 } else {
1206 (void) snprintf(blkbuf + strlen(blkbuf),
1207 buflen - strlen(blkbuf),
1208 "%llxL/%llxP F=%llu B=%llu/%llu",
1209 (u_longlong_t)BP_GET_LSIZE(bp),
1210 (u_longlong_t)BP_GET_PSIZE(bp),
1211 (u_longlong_t)BP_GET_FILL(bp),
1212 (u_longlong_t)bp->blk_birth,
1213 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1214 }
1215 }
1216
1217 static void
1218 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1219 const dnode_phys_t *dnp)
1220 {
1221 char blkbuf[BP_SPRINTF_LEN];
1222 int l;
1223
1224 if (!BP_IS_EMBEDDED(bp)) {
1225 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1226 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1227 }
1228
1229 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1230
1231 ASSERT(zb->zb_level >= 0);
1232
1233 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1234 if (l == zb->zb_level) {
1235 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1236 } else {
1237 (void) printf(" ");
1238 }
1239 }
1240
1241 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1242 (void) printf("%s\n", blkbuf);
1243 }
1244
1245 static int
1246 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1247 blkptr_t *bp, const zbookmark_phys_t *zb)
1248 {
1249 int err = 0;
1250
1251 if (bp->blk_birth == 0)
1252 return (0);
1253
1254 print_indirect(bp, zb, dnp);
1255
1256 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1257 arc_flags_t flags = ARC_FLAG_WAIT;
1258 int i;
1259 blkptr_t *cbp;
1260 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1261 arc_buf_t *buf;
1262 uint64_t fill = 0;
1263
1264 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1265 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1266 if (err)
1267 return (err);
1268 ASSERT(buf->b_data);
1269
1270 /* recursively visit blocks below this */
1271 cbp = buf->b_data;
1272 for (i = 0; i < epb; i++, cbp++) {
1273 zbookmark_phys_t czb;
1274
1275 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1276 zb->zb_level - 1,
1277 zb->zb_blkid * epb + i);
1278 err = visit_indirect(spa, dnp, cbp, &czb);
1279 if (err)
1280 break;
1281 fill += BP_GET_FILL(cbp);
1282 }
1283 if (!err)
1284 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1285 arc_buf_destroy(buf, &buf);
1286 }
1287
1288 return (err);
1289 }
1290
1291 /*ARGSUSED*/
1292 static void
1293 dump_indirect(dnode_t *dn)
1294 {
1295 dnode_phys_t *dnp = dn->dn_phys;
1296 int j;
1297 zbookmark_phys_t czb;
1298
1299 (void) printf("Indirect blocks:\n");
1300
1301 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1302 dn->dn_object, dnp->dn_nlevels - 1, 0);
1303 for (j = 0; j < dnp->dn_nblkptr; j++) {
1304 czb.zb_blkid = j;
1305 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1306 &dnp->dn_blkptr[j], &czb);
1307 }
1308
1309 (void) printf("\n");
1310 }
1311
1312 /*ARGSUSED*/
1313 static void
1314 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1315 {
1316 dsl_dir_phys_t *dd = data;
1317 time_t crtime;
1318 char nice[32];
1319
1320 if (dd == NULL)
1321 return;
1322
1323 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1324
1325 crtime = dd->dd_creation_time;
1326 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1327 (void) printf("\t\thead_dataset_obj = %llu\n",
1328 (u_longlong_t)dd->dd_head_dataset_obj);
1329 (void) printf("\t\tparent_dir_obj = %llu\n",
1330 (u_longlong_t)dd->dd_parent_obj);
1331 (void) printf("\t\torigin_obj = %llu\n",
1332 (u_longlong_t)dd->dd_origin_obj);
1333 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1334 (u_longlong_t)dd->dd_child_dir_zapobj);
1335 zdb_nicenum(dd->dd_used_bytes, nice);
1336 (void) printf("\t\tused_bytes = %s\n", nice);
1337 zdb_nicenum(dd->dd_compressed_bytes, nice);
1338 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1339 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1340 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1341 zdb_nicenum(dd->dd_quota, nice);
1342 (void) printf("\t\tquota = %s\n", nice);
1343 zdb_nicenum(dd->dd_reserved, nice);
1344 (void) printf("\t\treserved = %s\n", nice);
1345 (void) printf("\t\tprops_zapobj = %llu\n",
1346 (u_longlong_t)dd->dd_props_zapobj);
1347 (void) printf("\t\tdeleg_zapobj = %llu\n",
1348 (u_longlong_t)dd->dd_deleg_zapobj);
1349 (void) printf("\t\tflags = %llx\n",
1350 (u_longlong_t)dd->dd_flags);
1351
1352 #define DO(which) \
1353 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1354 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1355 DO(HEAD);
1356 DO(SNAP);
1357 DO(CHILD);
1358 DO(CHILD_RSRV);
1359 DO(REFRSRV);
1360 #undef DO
1361 }
1362
1363 /*ARGSUSED*/
1364 static void
1365 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1366 {
1367 dsl_dataset_phys_t *ds = data;
1368 time_t crtime;
1369 char used[32], compressed[32], uncompressed[32], unique[32];
1370 char blkbuf[BP_SPRINTF_LEN];
1371
1372 if (ds == NULL)
1373 return;
1374
1375 ASSERT(size == sizeof (*ds));
1376 crtime = ds->ds_creation_time;
1377 zdb_nicenum(ds->ds_referenced_bytes, used);
1378 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1379 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1380 zdb_nicenum(ds->ds_unique_bytes, unique);
1381 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1382
1383 (void) printf("\t\tdir_obj = %llu\n",
1384 (u_longlong_t)ds->ds_dir_obj);
1385 (void) printf("\t\tprev_snap_obj = %llu\n",
1386 (u_longlong_t)ds->ds_prev_snap_obj);
1387 (void) printf("\t\tprev_snap_txg = %llu\n",
1388 (u_longlong_t)ds->ds_prev_snap_txg);
1389 (void) printf("\t\tnext_snap_obj = %llu\n",
1390 (u_longlong_t)ds->ds_next_snap_obj);
1391 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1392 (u_longlong_t)ds->ds_snapnames_zapobj);
1393 (void) printf("\t\tnum_children = %llu\n",
1394 (u_longlong_t)ds->ds_num_children);
1395 (void) printf("\t\tuserrefs_obj = %llu\n",
1396 (u_longlong_t)ds->ds_userrefs_obj);
1397 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1398 (void) printf("\t\tcreation_txg = %llu\n",
1399 (u_longlong_t)ds->ds_creation_txg);
1400 (void) printf("\t\tdeadlist_obj = %llu\n",
1401 (u_longlong_t)ds->ds_deadlist_obj);
1402 (void) printf("\t\tused_bytes = %s\n", used);
1403 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1404 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1405 (void) printf("\t\tunique = %s\n", unique);
1406 (void) printf("\t\tfsid_guid = %llu\n",
1407 (u_longlong_t)ds->ds_fsid_guid);
1408 (void) printf("\t\tguid = %llu\n",
1409 (u_longlong_t)ds->ds_guid);
1410 (void) printf("\t\tflags = %llx\n",
1411 (u_longlong_t)ds->ds_flags);
1412 (void) printf("\t\tnext_clones_obj = %llu\n",
1413 (u_longlong_t)ds->ds_next_clones_obj);
1414 (void) printf("\t\tprops_obj = %llu\n",
1415 (u_longlong_t)ds->ds_props_obj);
1416 (void) printf("\t\tbp = %s\n", blkbuf);
1417 }
1418
1419 /* ARGSUSED */
1420 static int
1421 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1422 {
1423 char blkbuf[BP_SPRINTF_LEN];
1424
1425 if (bp->blk_birth != 0) {
1426 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1427 (void) printf("\t%s\n", blkbuf);
1428 }
1429 return (0);
1430 }
1431
1432 static void
1433 dump_bptree(objset_t *os, uint64_t obj, char *name)
1434 {
1435 char bytes[32];
1436 bptree_phys_t *bt;
1437 dmu_buf_t *db;
1438
1439 if (dump_opt['d'] < 3)
1440 return;
1441
1442 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1443 bt = db->db_data;
1444 zdb_nicenum(bt->bt_bytes, bytes);
1445 (void) printf("\n %s: %llu datasets, %s\n",
1446 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1447 dmu_buf_rele(db, FTAG);
1448
1449 if (dump_opt['d'] < 5)
1450 return;
1451
1452 (void) printf("\n");
1453
1454 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1455 }
1456
1457 /* ARGSUSED */
1458 static int
1459 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1460 {
1461 char blkbuf[BP_SPRINTF_LEN];
1462
1463 ASSERT(bp->blk_birth != 0);
1464 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1465 (void) printf("\t%s\n", blkbuf);
1466 return (0);
1467 }
1468
1469 static void
1470 dump_full_bpobj(bpobj_t *bpo, char *name, int indent)
1471 {
1472 char bytes[32];
1473 char comp[32];
1474 char uncomp[32];
1475
1476 if (dump_opt['d'] < 3)
1477 return;
1478
1479 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1480 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1481 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1482 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1483 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1484 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1485 indent * 8, name,
1486 (u_longlong_t)bpo->bpo_object,
1487 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1488 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1489 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1490 bytes, comp, uncomp);
1491
1492 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1493 uint64_t subobj;
1494 bpobj_t subbpo;
1495 int error;
1496 VERIFY0(dmu_read(bpo->bpo_os,
1497 bpo->bpo_phys->bpo_subobjs,
1498 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1499 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1500 if (error != 0) {
1501 (void) printf("ERROR %u while trying to open "
1502 "subobj id %llu\n",
1503 error, (u_longlong_t)subobj);
1504 continue;
1505 }
1506 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1507 bpobj_close(&subbpo);
1508 }
1509 } else {
1510 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1511 indent * 8, name,
1512 (u_longlong_t)bpo->bpo_object,
1513 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1514 bytes);
1515 }
1516
1517 if (dump_opt['d'] < 5)
1518 return;
1519
1520
1521 if (indent == 0) {
1522 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1523 (void) printf("\n");
1524 }
1525 }
1526
1527 static void
1528 dump_deadlist(dsl_deadlist_t *dl)
1529 {
1530 dsl_deadlist_entry_t *dle;
1531 uint64_t unused;
1532 char bytes[32];
1533 char comp[32];
1534 char uncomp[32];
1535
1536 if (dump_opt['d'] < 3)
1537 return;
1538
1539 if (dl->dl_oldfmt) {
1540 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1541 return;
1542 }
1543
1544 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1545 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1546 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1547 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1548 bytes, comp, uncomp);
1549
1550 if (dump_opt['d'] < 4)
1551 return;
1552
1553 (void) printf("\n");
1554
1555 /* force the tree to be loaded */
1556 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1557
1558 for (dle = avl_first(&dl->dl_tree); dle;
1559 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1560 if (dump_opt['d'] >= 5) {
1561 char buf[128];
1562 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ",
1563 (longlong_t)dle->dle_mintxg,
1564 (longlong_t)dle->dle_bpobj.bpo_object);
1565
1566 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1567 } else {
1568 (void) printf("mintxg %llu -> obj %llu\n",
1569 (longlong_t)dle->dle_mintxg,
1570 (longlong_t)dle->dle_bpobj.bpo_object);
1571
1572 }
1573 }
1574 }
1575
1576 static avl_tree_t idx_tree;
1577 static avl_tree_t domain_tree;
1578 static boolean_t fuid_table_loaded;
1579 static objset_t *sa_os = NULL;
1580 static sa_attr_type_t *sa_attr_table = NULL;
1581
1582 static int
1583 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1584 {
1585 int err;
1586 uint64_t sa_attrs = 0;
1587 uint64_t version = 0;
1588
1589 VERIFY3P(sa_os, ==, NULL);
1590 err = dmu_objset_own(path, type, B_TRUE, tag, osp);
1591 if (err != 0) {
1592 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1593 strerror(err));
1594 return (err);
1595 }
1596
1597 if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
1598 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1599 8, 1, &version);
1600 if (version >= ZPL_VERSION_SA) {
1601 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1602 8, 1, &sa_attrs);
1603 }
1604 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1605 &sa_attr_table);
1606 if (err != 0) {
1607 (void) fprintf(stderr, "sa_setup failed: %s\n",
1608 strerror(err));
1609 dmu_objset_disown(*osp, tag);
1610 *osp = NULL;
1611 }
1612 }
1613 sa_os = *osp;
1614
1615 return (0);
1616 }
1617
1618 static void
1619 close_objset(objset_t *os, void *tag)
1620 {
1621 VERIFY3P(os, ==, sa_os);
1622 if (os->os_sa != NULL)
1623 sa_tear_down(os);
1624 dmu_objset_disown(os, tag);
1625 sa_attr_table = NULL;
1626 sa_os = NULL;
1627 }
1628
1629 static void
1630 fuid_table_destroy()
1631 {
1632 if (fuid_table_loaded) {
1633 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1634 fuid_table_loaded = B_FALSE;
1635 }
1636 }
1637
1638 /*
1639 * print uid or gid information.
1640 * For normal POSIX id just the id is printed in decimal format.
1641 * For CIFS files with FUID the fuid is printed in hex followed by
1642 * the domain-rid string.
1643 */
1644 static void
1645 print_idstr(uint64_t id, const char *id_type)
1646 {
1647 if (FUID_INDEX(id)) {
1648 char *domain;
1649
1650 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1651 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1652 (u_longlong_t)id, domain, (int)FUID_RID(id));
1653 } else {
1654 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1655 }
1656
1657 }
1658
1659 static void
1660 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1661 {
1662 uint32_t uid_idx, gid_idx;
1663
1664 uid_idx = FUID_INDEX(uid);
1665 gid_idx = FUID_INDEX(gid);
1666
1667 /* Load domain table, if not already loaded */
1668 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1669 uint64_t fuid_obj;
1670
1671 /* first find the fuid object. It lives in the master node */
1672 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1673 8, 1, &fuid_obj) == 0);
1674 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1675 (void) zfs_fuid_table_load(os, fuid_obj,
1676 &idx_tree, &domain_tree);
1677 fuid_table_loaded = B_TRUE;
1678 }
1679
1680 print_idstr(uid, "uid");
1681 print_idstr(gid, "gid");
1682 }
1683
1684 /*ARGSUSED*/
1685 static void
1686 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1687 {
1688 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1689 sa_handle_t *hdl;
1690 uint64_t xattr, rdev, gen;
1691 uint64_t uid, gid, mode, fsize, parent, links;
1692 uint64_t pflags;
1693 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1694 time_t z_crtime, z_atime, z_mtime, z_ctime;
1695 sa_bulk_attr_t bulk[12];
1696 int idx = 0;
1697 int error;
1698
1699 VERIFY3P(os, ==, sa_os);
1700 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1701 (void) printf("Failed to get handle for SA znode\n");
1702 return;
1703 }
1704
1705 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1706 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1707 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1708 &links, 8);
1709 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1710 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1711 &mode, 8);
1712 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1713 NULL, &parent, 8);
1714 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1715 &fsize, 8);
1716 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1717 acctm, 16);
1718 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1719 modtm, 16);
1720 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1721 crtm, 16);
1722 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1723 chgtm, 16);
1724 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1725 &pflags, 8);
1726
1727 if (sa_bulk_lookup(hdl, bulk, idx)) {
1728 (void) sa_handle_destroy(hdl);
1729 return;
1730 }
1731
1732 error = zfs_obj_to_path(os, object, path, sizeof (path));
1733 if (error != 0) {
1734 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1735 (u_longlong_t)object);
1736 }
1737 if (dump_opt['d'] < 3) {
1738 (void) printf("\t%s\n", path);
1739 (void) sa_handle_destroy(hdl);
1740 return;
1741 }
1742
1743 z_crtime = (time_t)crtm[0];
1744 z_atime = (time_t)acctm[0];
1745 z_mtime = (time_t)modtm[0];
1746 z_ctime = (time_t)chgtm[0];
1747
1748 (void) printf("\tpath %s\n", path);
1749 dump_uidgid(os, uid, gid);
1750 (void) printf("\tatime %s", ctime(&z_atime));
1751 (void) printf("\tmtime %s", ctime(&z_mtime));
1752 (void) printf("\tctime %s", ctime(&z_ctime));
1753 (void) printf("\tcrtime %s", ctime(&z_crtime));
1754 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1755 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1756 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1757 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1758 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1759 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1760 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1761 sizeof (uint64_t)) == 0)
1762 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1763 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1764 sizeof (uint64_t)) == 0)
1765 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1766 sa_handle_destroy(hdl);
1767 }
1768
1769 /*ARGSUSED*/
1770 static void
1771 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1772 {
1773 }
1774
1775 /*ARGSUSED*/
1776 static void
1777 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1778 {
1779 }
1780
1781 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1782 dump_none, /* unallocated */
1783 dump_zap, /* object directory */
1784 dump_uint64, /* object array */
1785 dump_none, /* packed nvlist */
1786 dump_packed_nvlist, /* packed nvlist size */
1787 dump_none, /* bpobj */
1788 dump_bpobj, /* bpobj header */
1789 dump_none, /* SPA space map header */
1790 dump_none, /* SPA space map */
1791 dump_none, /* ZIL intent log */
1792 dump_dnode, /* DMU dnode */
1793 dump_dmu_objset, /* DMU objset */
1794 dump_dsl_dir, /* DSL directory */
1795 dump_zap, /* DSL directory child map */
1796 dump_zap, /* DSL dataset snap map */
1797 dump_zap, /* DSL props */
1798 dump_dsl_dataset, /* DSL dataset */
1799 dump_znode, /* ZFS znode */
1800 dump_acl, /* ZFS V0 ACL */
1801 dump_uint8, /* ZFS plain file */
1802 dump_zpldir, /* ZFS directory */
1803 dump_zap, /* ZFS master node */
1804 dump_zap, /* ZFS delete queue */
1805 dump_uint8, /* zvol object */
1806 dump_zap, /* zvol prop */
1807 dump_uint8, /* other uint8[] */
1808 dump_uint64, /* other uint64[] */
1809 dump_zap, /* other ZAP */
1810 dump_zap, /* persistent error log */
1811 dump_uint8, /* SPA history */
1812 dump_history_offsets, /* SPA history offsets */
1813 dump_zap, /* Pool properties */
1814 dump_zap, /* DSL permissions */
1815 dump_acl, /* ZFS ACL */
1816 dump_uint8, /* ZFS SYSACL */
1817 dump_none, /* FUID nvlist */
1818 dump_packed_nvlist, /* FUID nvlist size */
1819 dump_zap, /* DSL dataset next clones */
1820 dump_zap, /* DSL scrub queue */
1821 dump_zap, /* ZFS user/group used */
1822 dump_zap, /* ZFS user/group quota */
1823 dump_zap, /* snapshot refcount tags */
1824 dump_ddt_zap, /* DDT ZAP object */
1825 dump_zap, /* DDT statistics */
1826 dump_znode, /* SA object */
1827 dump_zap, /* SA Master Node */
1828 dump_sa_attrs, /* SA attribute registration */
1829 dump_sa_layouts, /* SA attribute layouts */
1830 dump_zap, /* DSL scrub translations */
1831 dump_none, /* fake dedup BP */
1832 dump_zap, /* deadlist */
1833 dump_none, /* deadlist hdr */
1834 dump_zap, /* dsl clones */
1835 dump_bpobj_subobjs, /* bpobj subobjs */
1836 dump_unknown, /* Unknown type, must be last */
1837 };
1838
1839 static void
1840 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1841 {
1842 dmu_buf_t *db = NULL;
1843 dmu_object_info_t doi;
1844 dnode_t *dn;
1845 void *bonus = NULL;
1846 size_t bsize = 0;
1847 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1848 char bonus_size[32];
1849 char aux[50];
1850 int error;
1851
1852 if (*print_header) {
1853 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1854 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1855 "%full", "type");
1856 *print_header = 0;
1857 }
1858
1859 if (object == 0) {
1860 dn = DMU_META_DNODE(os);
1861 } else {
1862 error = dmu_bonus_hold(os, object, FTAG, &db);
1863 if (error)
1864 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1865 object, error);
1866 bonus = db->db_data;
1867 bsize = db->db_size;
1868 dn = DB_DNODE((dmu_buf_impl_t *)db);
1869 }
1870 dmu_object_info_from_dnode(dn, &doi);
1871
1872 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1873 zdb_nicenum(doi.doi_data_block_size, dblk);
1874 zdb_nicenum(doi.doi_max_offset, lsize);
1875 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1876 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1877 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1878 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1879 doi.doi_max_offset);
1880
1881 aux[0] = '\0';
1882
1883 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1884 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1885 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1886 }
1887
1888 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1889 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1890 ZDB_COMPRESS_NAME(doi.doi_compress));
1891 }
1892
1893 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1894 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1895 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1896
1897 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1898 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1899 "", "", "", "", "", bonus_size, "bonus",
1900 ZDB_OT_NAME(doi.doi_bonus_type));
1901 }
1902
1903 if (verbosity >= 4) {
1904 (void) printf("\tdnode flags: %s%s%s\n",
1905 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1906 "USED_BYTES " : "",
1907 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1908 "USERUSED_ACCOUNTED " : "",
1909 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1910 "SPILL_BLKPTR" : "");
1911 (void) printf("\tdnode maxblkid: %llu\n",
1912 (longlong_t)dn->dn_phys->dn_maxblkid);
1913
1914 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1915 bonus, bsize);
1916 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1917 *print_header = 1;
1918 }
1919
1920 if (verbosity >= 5)
1921 dump_indirect(dn);
1922
1923 if (verbosity >= 5) {
1924 /*
1925 * Report the list of segments that comprise the object.
1926 */
1927 uint64_t start = 0;
1928 uint64_t end;
1929 uint64_t blkfill = 1;
1930 int minlvl = 1;
1931
1932 if (dn->dn_type == DMU_OT_DNODE) {
1933 minlvl = 0;
1934 blkfill = DNODES_PER_BLOCK;
1935 }
1936
1937 for (;;) {
1938 char segsize[32];
1939 error = dnode_next_offset(dn,
1940 0, &start, minlvl, blkfill, 0);
1941 if (error)
1942 break;
1943 end = start;
1944 error = dnode_next_offset(dn,
1945 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1946 zdb_nicenum(end - start, segsize);
1947 (void) printf("\t\tsegment [%016llx, %016llx)"
1948 " size %5s\n", (u_longlong_t)start,
1949 (u_longlong_t)end, segsize);
1950 if (error)
1951 break;
1952 start = end;
1953 }
1954 }
1955
1956 if (db != NULL)
1957 dmu_buf_rele(db, FTAG);
1958 }
1959
1960 static char *objset_types[DMU_OST_NUMTYPES] = {
1961 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1962
1963 static void
1964 dump_dir(objset_t *os)
1965 {
1966 dmu_objset_stats_t dds;
1967 uint64_t object, object_count;
1968 uint64_t refdbytes, usedobjs, scratch;
1969 char numbuf[32];
1970 char blkbuf[BP_SPRINTF_LEN + 20];
1971 char osname[ZFS_MAX_DATASET_NAME_LEN];
1972 char *type = "UNKNOWN";
1973 int verbosity = dump_opt['d'];
1974 int print_header = 1;
1975 int i, error;
1976
1977 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1978 dmu_objset_fast_stat(os, &dds);
1979 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1980
1981 if (dds.dds_type < DMU_OST_NUMTYPES)
1982 type = objset_types[dds.dds_type];
1983
1984 if (dds.dds_type == DMU_OST_META) {
1985 dds.dds_creation_txg = TXG_INITIAL;
1986 usedobjs = BP_GET_FILL(os->os_rootbp);
1987 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
1988 dd_used_bytes;
1989 } else {
1990 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1991 }
1992
1993 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
1994
1995 zdb_nicenum(refdbytes, numbuf);
1996
1997 if (verbosity >= 4) {
1998 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
1999 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2000 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2001 } else {
2002 blkbuf[0] = '\0';
2003 }
2004
2005 dmu_objset_name(os, osname);
2006
2007 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2008 "%s, %llu objects%s\n",
2009 osname, type, (u_longlong_t)dmu_objset_id(os),
2010 (u_longlong_t)dds.dds_creation_txg,
2011 numbuf, (u_longlong_t)usedobjs, blkbuf);
2012
2013 if (zopt_objects != 0) {
2014 for (i = 0; i < zopt_objects; i++)
2015 dump_object(os, zopt_object[i], verbosity,
2016 &print_header);
2017 (void) printf("\n");
2018 return;
2019 }
2020
2021 if (dump_opt['i'] != 0 || verbosity >= 2)
2022 dump_intent_log(dmu_objset_zil(os));
2023
2024 if (dmu_objset_ds(os) != NULL)
2025 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
2026
2027 if (verbosity < 2)
2028 return;
2029
2030 if (BP_IS_HOLE(os->os_rootbp))
2031 return;
2032
2033 dump_object(os, 0, verbosity, &print_header);
2034 object_count = 0;
2035 if (DMU_USERUSED_DNODE(os) != NULL &&
2036 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2037 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2038 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2039 }
2040
2041 object = 0;
2042 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2043 dump_object(os, object, verbosity, &print_header);
2044 object_count++;
2045 }
2046
2047 ASSERT3U(object_count, ==, usedobjs);
2048
2049 (void) printf("\n");
2050
2051 if (error != ESRCH) {
2052 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2053 abort();
2054 }
2055 }
2056
2057 static void
2058 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2059 {
2060 time_t timestamp = ub->ub_timestamp;
2061
2062 (void) printf(header ? header : "");
2063 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2064 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2065 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2066 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2067 (void) printf("\ttimestamp = %llu UTC = %s",
2068 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2069 if (dump_opt['u'] >= 3) {
2070 char blkbuf[BP_SPRINTF_LEN];
2071 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2072 (void) printf("\trootbp = %s\n", blkbuf);
2073 }
2074 (void) printf(footer ? footer : "");
2075 }
2076
2077 static void
2078 dump_config(spa_t *spa)
2079 {
2080 dmu_buf_t *db;
2081 size_t nvsize = 0;
2082 int error = 0;
2083
2084
2085 error = dmu_bonus_hold(spa->spa_meta_objset,
2086 spa->spa_config_object, FTAG, &db);
2087
2088 if (error == 0) {
2089 nvsize = *(uint64_t *)db->db_data;
2090 dmu_buf_rele(db, FTAG);
2091
2092 (void) printf("\nMOS Configuration:\n");
2093 dump_packed_nvlist(spa->spa_meta_objset,
2094 spa->spa_config_object, (void *)&nvsize, 1);
2095 } else {
2096 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2097 (u_longlong_t)spa->spa_config_object, error);
2098 }
2099 }
2100
2101 static void
2102 dump_cachefile(const char *cachefile)
2103 {
2104 int fd;
2105 struct stat64 statbuf;
2106 char *buf;
2107 nvlist_t *config;
2108
2109 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2110 (void) printf("cannot open '%s': %s\n", cachefile,
2111 strerror(errno));
2112 exit(1);
2113 }
2114
2115 if (fstat64(fd, &statbuf) != 0) {
2116 (void) printf("failed to stat '%s': %s\n", cachefile,
2117 strerror(errno));
2118 exit(1);
2119 }
2120
2121 if ((buf = malloc(statbuf.st_size)) == NULL) {
2122 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2123 (u_longlong_t)statbuf.st_size);
2124 exit(1);
2125 }
2126
2127 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2128 (void) fprintf(stderr, "failed to read %llu bytes\n",
2129 (u_longlong_t)statbuf.st_size);
2130 exit(1);
2131 }
2132
2133 (void) close(fd);
2134
2135 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2136 (void) fprintf(stderr, "failed to unpack nvlist\n");
2137 exit(1);
2138 }
2139
2140 free(buf);
2141
2142 dump_nvlist(config, 0);
2143
2144 nvlist_free(config);
2145 }
2146
2147 #define ZDB_MAX_UB_HEADER_SIZE 32
2148
2149 static void
2150 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2151 {
2152 vdev_t vd;
2153 vdev_t *vdp = &vd;
2154 char header[ZDB_MAX_UB_HEADER_SIZE];
2155
2156 vd.vdev_ashift = ashift;
2157 vdp->vdev_top = vdp;
2158
2159 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2160 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2161 uberblock_t *ub = (void *)((char *)lbl + uoff);
2162
2163 if (uberblock_verify(ub))
2164 continue;
2165 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2166 "Uberblock[%d]\n", i);
2167 dump_uberblock(ub, header, "");
2168 }
2169 }
2170
2171 static char curpath[PATH_MAX];
2172
2173 /*
2174 * Iterate through the path components, recursively passing
2175 * current one's obj and remaining path until we find the obj
2176 * for the last one.
2177 */
2178 static int
2179 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2180 {
2181 int err;
2182 int header = 1;
2183 uint64_t child_obj;
2184 char *s;
2185 dmu_buf_t *db;
2186 dmu_object_info_t doi;
2187
2188 if ((s = strchr(name, '/')) != NULL)
2189 *s = '\0';
2190 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2191
2192 (void) strlcat(curpath, name, sizeof (curpath));
2193
2194 if (err != 0) {
2195 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2196 curpath, strerror(err));
2197 return (err);
2198 }
2199
2200 child_obj = ZFS_DIRENT_OBJ(child_obj);
2201 err = sa_buf_hold(os, child_obj, FTAG, &db);
2202 if (err != 0) {
2203 (void) fprintf(stderr,
2204 "failed to get SA dbuf for obj %llu: %s\n",
2205 (u_longlong_t)child_obj, strerror(err));
2206 return (EINVAL);
2207 }
2208 dmu_object_info_from_db(db, &doi);
2209 sa_buf_rele(db, FTAG);
2210
2211 if (doi.doi_bonus_type != DMU_OT_SA &&
2212 doi.doi_bonus_type != DMU_OT_ZNODE) {
2213 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2214 doi.doi_bonus_type, (u_longlong_t)child_obj);
2215 return (EINVAL);
2216 }
2217
2218 if (dump_opt['v'] > 6) {
2219 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2220 (u_longlong_t)child_obj, curpath, doi.doi_type,
2221 doi.doi_bonus_type);
2222 }
2223
2224 (void) strlcat(curpath, "/", sizeof (curpath));
2225
2226 switch (doi.doi_type) {
2227 case DMU_OT_DIRECTORY_CONTENTS:
2228 if (s != NULL && *(s + 1) != '\0')
2229 return (dump_path_impl(os, child_obj, s + 1));
2230 /*FALLTHROUGH*/
2231 case DMU_OT_PLAIN_FILE_CONTENTS:
2232 dump_object(os, child_obj, dump_opt['v'], &header);
2233 return (0);
2234 default:
2235 (void) fprintf(stderr, "object %llu has non-file/directory "
2236 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2237 break;
2238 }
2239
2240 return (EINVAL);
2241 }
2242
2243 /*
2244 * Dump the blocks for the object specified by path inside the dataset.
2245 */
2246 static int
2247 dump_path(char *ds, char *path)
2248 {
2249 int err;
2250 objset_t *os;
2251 uint64_t root_obj;
2252
2253 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2254 if (err != 0)
2255 return (err);
2256
2257 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2258 if (err != 0) {
2259 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2260 strerror(err));
2261 dmu_objset_disown(os, FTAG);
2262 return (EINVAL);
2263 }
2264
2265 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2266
2267 err = dump_path_impl(os, root_obj, path);
2268
2269 close_objset(os, FTAG);
2270 return (err);
2271 }
2272
2273 static int
2274 dump_label(const char *dev)
2275 {
2276 int fd;
2277 vdev_label_t label;
2278 char path[MAXPATHLEN];
2279 char *buf = label.vl_vdev_phys.vp_nvlist;
2280 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2281 struct stat64 statbuf;
2282 uint64_t psize, ashift;
2283 boolean_t label_found = B_FALSE;
2284
2285 (void) strlcpy(path, dev, sizeof (path));
2286 if (dev[0] == '/') {
2287 if (strncmp(dev, ZFS_DISK_ROOTD,
2288 strlen(ZFS_DISK_ROOTD)) == 0) {
2289 (void) snprintf(path, sizeof (path), "%s%s",
2290 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD));
2291 }
2292 } else if (stat64(path, &statbuf) != 0) {
2293 char *s;
2294
2295 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD,
2296 dev);
2297 if ((s = strrchr(dev, 's')) == NULL || !isdigit(*(s + 1)))
2298 (void) strlcat(path, "s0", sizeof (path));
2299 }
2300
2301 if (stat64(path, &statbuf) != 0) {
2302 (void) printf("failed to stat '%s': %s\n", path,
2303 strerror(errno));
2304 exit(1);
2305 }
2306
2307 if (S_ISBLK(statbuf.st_mode)) {
2308 (void) printf("cannot use '%s': character device required\n",
2309 path);
2310 exit(1);
2311 }
2312
2313 if ((fd = open64(path, O_RDONLY)) < 0) {
2314 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2315 exit(1);
2316 }
2317
2318 psize = statbuf.st_size;
2319 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2320
2321 for (int l = 0; l < VDEV_LABELS; l++) {
2322 nvlist_t *config = NULL;
2323
2324 if (!dump_opt['q']) {
2325 (void) printf("------------------------------------\n");
2326 (void) printf("LABEL %d\n", l);
2327 (void) printf("------------------------------------\n");
2328 }
2329
2330 if (pread64(fd, &label, sizeof (label),
2331 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2332 if (!dump_opt['q'])
2333 (void) printf("failed to read label %d\n", l);
2334 continue;
2335 }
2336
2337 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2338 if (!dump_opt['q'])
2339 (void) printf("failed to unpack label %d\n", l);
2340 ashift = SPA_MINBLOCKSHIFT;
2341 } else {
2342 nvlist_t *vdev_tree = NULL;
2343
2344 if (!dump_opt['q'])
2345 dump_nvlist(config, 4);
2346 if ((nvlist_lookup_nvlist(config,
2347 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2348 (nvlist_lookup_uint64(vdev_tree,
2349 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2350 ashift = SPA_MINBLOCKSHIFT;
2351 nvlist_free(config);
2352 label_found = B_TRUE;
2353 }
2354 if (dump_opt['u'])
2355 dump_label_uberblocks(&label, ashift);
2356 }
2357
2358 (void) close(fd);
2359
2360 return (label_found ? 0 : 2);
2361 }
2362
2363 static uint64_t dataset_feature_count[SPA_FEATURES];
2364
2365 /*ARGSUSED*/
2366 static int
2367 dump_one_dir(const char *dsname, void *arg)
2368 {
2369 int error;
2370 objset_t *os;
2371
2372 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
2373 if (error != 0)
2374 return (0);
2375
2376 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2377 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2378 continue;
2379 ASSERT(spa_feature_table[f].fi_flags &
2380 ZFEATURE_FLAG_PER_DATASET);
2381 dataset_feature_count[f]++;
2382 }
2383
2384 dump_dir(os);
2385 close_objset(os, FTAG);
2386 fuid_table_destroy();
2387 return (0);
2388 }
2389
2390 /*
2391 * Block statistics.
2392 */
2393 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2394 typedef struct zdb_blkstats {
2395 uint64_t zb_asize;
2396 uint64_t zb_lsize;
2397 uint64_t zb_psize;
2398 uint64_t zb_count;
2399 uint64_t zb_gangs;
2400 uint64_t zb_ditto_samevdev;
2401 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2402 } zdb_blkstats_t;
2403
2404 /*
2405 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2406 */
2407 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2408 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2409 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2410 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2411
2412 static char *zdb_ot_extname[] = {
2413 "deferred free",
2414 "dedup ditto",
2415 "other",
2416 "Total",
2417 };
2418
2419 #define ZB_TOTAL DN_MAX_LEVELS
2420
2421 typedef struct zdb_cb {
2422 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2423 uint64_t zcb_dedup_asize;
2424 uint64_t zcb_dedup_blocks;
2425 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2426 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2427 [BPE_PAYLOAD_SIZE];
2428 uint64_t zcb_start;
2429 uint64_t zcb_lastprint;
2430 uint64_t zcb_totalasize;
2431 uint64_t zcb_errors[256];
2432 int zcb_readfails;
2433 int zcb_haderrors;
2434 spa_t *zcb_spa;
2435 } zdb_cb_t;
2436
2437 static void
2438 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2439 dmu_object_type_t type)
2440 {
2441 uint64_t refcnt = 0;
2442
2443 ASSERT(type < ZDB_OT_TOTAL);
2444
2445 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2446 return;
2447
2448 for (int i = 0; i < 4; i++) {
2449 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2450 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2451 int equal;
2452 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2453
2454 zb->zb_asize += BP_GET_ASIZE(bp);
2455 zb->zb_lsize += BP_GET_LSIZE(bp);
2456 zb->zb_psize += BP_GET_PSIZE(bp);
2457 zb->zb_count++;
2458
2459 /*
2460 * The histogram is only big enough to record blocks up to
2461 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2462 * "other", bucket.
2463 */
2464 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2465 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2466 zb->zb_psize_histogram[idx]++;
2467
2468 zb->zb_gangs += BP_COUNT_GANG(bp);
2469
2470 switch (BP_GET_NDVAS(bp)) {
2471 case 2:
2472 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2473 DVA_GET_VDEV(&bp->blk_dva[1]))
2474 zb->zb_ditto_samevdev++;
2475 break;
2476 case 3:
2477 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2478 DVA_GET_VDEV(&bp->blk_dva[1])) +
2479 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2480 DVA_GET_VDEV(&bp->blk_dva[2])) +
2481 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2482 DVA_GET_VDEV(&bp->blk_dva[2]));
2483 if (equal != 0)
2484 zb->zb_ditto_samevdev++;
2485 break;
2486 }
2487
2488 }
2489
2490 if (BP_IS_EMBEDDED(bp)) {
2491 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2492 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2493 [BPE_GET_PSIZE(bp)]++;
2494 return;
2495 }
2496
2497 if (dump_opt['L'])
2498 return;
2499
2500 if (BP_GET_DEDUP(bp)) {
2501 ddt_t *ddt;
2502 ddt_entry_t *dde;
2503
2504 ddt = ddt_select(zcb->zcb_spa, bp);
2505 ddt_enter(ddt);
2506 dde = ddt_lookup(ddt, bp, B_FALSE);
2507
2508 if (dde == NULL) {
2509 refcnt = 0;
2510 } else {
2511 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2512 ddt_phys_decref(ddp);
2513 refcnt = ddp->ddp_refcnt;
2514 if (ddt_phys_total_refcnt(dde) == 0)
2515 ddt_remove(ddt, dde);
2516 }
2517 ddt_exit(ddt);
2518 }
2519
2520 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2521 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2522 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2523 }
2524
2525 static void
2526 zdb_blkptr_done(zio_t *zio)
2527 {
2528 spa_t *spa = zio->io_spa;
2529 blkptr_t *bp = zio->io_bp;
2530 int ioerr = zio->io_error;
2531 zdb_cb_t *zcb = zio->io_private;
2532 zbookmark_phys_t *zb = &zio->io_bookmark;
2533
2534 zio_data_buf_free(zio->io_data, zio->io_size);
2535
2536 mutex_enter(&spa->spa_scrub_lock);
2537 spa->spa_scrub_inflight--;
2538 cv_broadcast(&spa->spa_scrub_io_cv);
2539
2540 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2541 char blkbuf[BP_SPRINTF_LEN];
2542
2543 zcb->zcb_haderrors = 1;
2544 zcb->zcb_errors[ioerr]++;
2545
2546 if (dump_opt['b'] >= 2)
2547 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2548 else
2549 blkbuf[0] = '\0';
2550
2551 (void) printf("zdb_blkptr_cb: "
2552 "Got error %d reading "
2553 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2554 ioerr,
2555 (u_longlong_t)zb->zb_objset,
2556 (u_longlong_t)zb->zb_object,
2557 (u_longlong_t)zb->zb_level,
2558 (u_longlong_t)zb->zb_blkid,
2559 blkbuf);
2560 }
2561 mutex_exit(&spa->spa_scrub_lock);
2562 }
2563
2564 static int
2565 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2566 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2567 {
2568 zdb_cb_t *zcb = arg;
2569 dmu_object_type_t type;
2570 boolean_t is_metadata;
2571
2572 if (bp == NULL)
2573 return (0);
2574
2575 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2576 char blkbuf[BP_SPRINTF_LEN];
2577 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2578 (void) printf("objset %llu object %llu "
2579 "level %lld offset 0x%llx %s\n",
2580 (u_longlong_t)zb->zb_objset,
2581 (u_longlong_t)zb->zb_object,
2582 (longlong_t)zb->zb_level,
2583 (u_longlong_t)blkid2offset(dnp, bp, zb),
2584 blkbuf);
2585 }
2586
2587 if (BP_IS_HOLE(bp))
2588 return (0);
2589
2590 type = BP_GET_TYPE(bp);
2591
2592 zdb_count_block(zcb, zilog, bp,
2593 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2594
2595 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2596
2597 if (!BP_IS_EMBEDDED(bp) &&
2598 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2599 size_t size = BP_GET_PSIZE(bp);
2600 void *data = zio_data_buf_alloc(size);
2601 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2602
2603 /* If it's an intent log block, failure is expected. */
2604 if (zb->zb_level == ZB_ZIL_LEVEL)
2605 flags |= ZIO_FLAG_SPECULATIVE;
2606
2607 mutex_enter(&spa->spa_scrub_lock);
2608 while (spa->spa_scrub_inflight > max_inflight)
2609 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2610 spa->spa_scrub_inflight++;
2611 mutex_exit(&spa->spa_scrub_lock);
2612
2613 zio_nowait(zio_read(NULL, spa, bp, data, size,
2614 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2615 }
2616
2617 zcb->zcb_readfails = 0;
2618
2619 /* only call gethrtime() every 100 blocks */
2620 static int iters;
2621 if (++iters > 100)
2622 iters = 0;
2623 else
2624 return (0);
2625
2626 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2627 uint64_t now = gethrtime();
2628 char buf[10];
2629 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2630 int kb_per_sec =
2631 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2632 int sec_remaining =
2633 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2634
2635 zfs_nicenum(bytes, buf, sizeof (buf));
2636 (void) fprintf(stderr,
2637 "\r%5s completed (%4dMB/s) "
2638 "estimated time remaining: %uhr %02umin %02usec ",
2639 buf, kb_per_sec / 1024,
2640 sec_remaining / 60 / 60,
2641 sec_remaining / 60 % 60,
2642 sec_remaining % 60);
2643
2644 zcb->zcb_lastprint = now;
2645 }
2646
2647 return (0);
2648 }
2649
2650 static void
2651 zdb_leak(void *arg, uint64_t start, uint64_t size)
2652 {
2653 vdev_t *vd = arg;
2654
2655 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2656 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2657 }
2658
2659 static metaslab_ops_t zdb_metaslab_ops = {
2660 NULL /* alloc */
2661 };
2662
2663 static void
2664 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2665 {
2666 ddt_bookmark_t ddb = { 0 };
2667 ddt_entry_t dde;
2668 int error;
2669
2670 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2671 blkptr_t blk;
2672 ddt_phys_t *ddp = dde.dde_phys;
2673
2674 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2675 return;
2676
2677 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2678
2679 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2680 if (ddp->ddp_phys_birth == 0)
2681 continue;
2682 ddt_bp_create(ddb.ddb_checksum,
2683 &dde.dde_key, ddp, &blk);
2684 if (p == DDT_PHYS_DITTO) {
2685 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2686 } else {
2687 zcb->zcb_dedup_asize +=
2688 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2689 zcb->zcb_dedup_blocks++;
2690 }
2691 }
2692 if (!dump_opt['L']) {
2693 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2694 ddt_enter(ddt);
2695 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2696 ddt_exit(ddt);
2697 }
2698 }
2699
2700 ASSERT(error == ENOENT);
2701 }
2702
2703 static void
2704 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2705 {
2706 zcb->zcb_spa = spa;
2707
2708 if (!dump_opt['L']) {
2709 vdev_t *rvd = spa->spa_root_vdev;
2710
2711 /*
2712 * We are going to be changing the meaning of the metaslab's
2713 * ms_tree. Ensure that the allocator doesn't try to
2714 * use the tree.
2715 */
2716 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
2717 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
2718
2719 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
2720 vdev_t *vd = rvd->vdev_child[c];
2721 metaslab_group_t *mg = vd->vdev_mg;
2722 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
2723 metaslab_t *msp = vd->vdev_ms[m];
2724 ASSERT3P(msp->ms_group, ==, mg);
2725 mutex_enter(&msp->ms_lock);
2726 metaslab_unload(msp);
2727
2728 /*
2729 * For leak detection, we overload the metaslab
2730 * ms_tree to contain allocated segments
2731 * instead of free segments. As a result,
2732 * we can't use the normal metaslab_load/unload
2733 * interfaces.
2734 */
2735 if (msp->ms_sm != NULL) {
2736 (void) fprintf(stderr,
2737 "\rloading space map for "
2738 "vdev %llu of %llu, "
2739 "metaslab %llu of %llu ...",
2740 (longlong_t)c,
2741 (longlong_t)rvd->vdev_children,
2742 (longlong_t)m,
2743 (longlong_t)vd->vdev_ms_count);
2744
2745 /*
2746 * We don't want to spend the CPU
2747 * manipulating the size-ordered
2748 * tree, so clear the range_tree
2749 * ops.
2750 */
2751 msp->ms_tree->rt_ops = NULL;
2752 VERIFY0(space_map_load(msp->ms_sm,
2753 msp->ms_tree, SM_ALLOC));
2754
2755 if (!msp->ms_loaded) {
2756 msp->ms_loaded = B_TRUE;
2757 }
2758 }
2759 mutex_exit(&msp->ms_lock);
2760 }
2761 }
2762 (void) fprintf(stderr, "\n");
2763 }
2764
2765 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2766
2767 zdb_ddt_leak_init(spa, zcb);
2768
2769 spa_config_exit(spa, SCL_CONFIG, FTAG);
2770 }
2771
2772 static void
2773 zdb_leak_fini(spa_t *spa)
2774 {
2775 if (!dump_opt['L']) {
2776 vdev_t *rvd = spa->spa_root_vdev;
2777 for (int c = 0; c < rvd->vdev_children; c++) {
2778 vdev_t *vd = rvd->vdev_child[c];
2779 metaslab_group_t *mg = vd->vdev_mg;
2780 for (int m = 0; m < vd->vdev_ms_count; m++) {
2781 metaslab_t *msp = vd->vdev_ms[m];
2782 ASSERT3P(mg, ==, msp->ms_group);
2783 mutex_enter(&msp->ms_lock);
2784
2785 /*
2786 * The ms_tree has been overloaded to
2787 * contain allocated segments. Now that we
2788 * finished traversing all blocks, any
2789 * block that remains in the ms_tree
2790 * represents an allocated block that we
2791 * did not claim during the traversal.
2792 * Claimed blocks would have been removed
2793 * from the ms_tree.
2794 */
2795 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2796
2797 if (msp->ms_loaded) {
2798 msp->ms_loaded = B_FALSE;
2799 }
2800
2801 mutex_exit(&msp->ms_lock);
2802 }
2803 }
2804 }
2805 }
2806
2807 /* ARGSUSED */
2808 static int
2809 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2810 {
2811 zdb_cb_t *zcb = arg;
2812
2813 if (dump_opt['b'] >= 5) {
2814 char blkbuf[BP_SPRINTF_LEN];
2815 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2816 (void) printf("[%s] %s\n",
2817 "deferred free", blkbuf);
2818 }
2819 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2820 return (0);
2821 }
2822
2823 static int
2824 dump_block_stats(spa_t *spa)
2825 {
2826 zdb_cb_t zcb = { 0 };
2827 zdb_blkstats_t *zb, *tzb;
2828 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2829 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2830 boolean_t leaks = B_FALSE;
2831
2832 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2833 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2834 (dump_opt['c'] == 1) ? "metadata " : "",
2835 dump_opt['c'] ? "checksums " : "",
2836 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2837 !dump_opt['L'] ? "nothing leaked " : "");
2838
2839 /*
2840 * Load all space maps as SM_ALLOC maps, then traverse the pool
2841 * claiming each block we discover. If the pool is perfectly
2842 * consistent, the space maps will be empty when we're done.
2843 * Anything left over is a leak; any block we can't claim (because
2844 * it's not part of any space map) is a double allocation,
2845 * reference to a freed block, or an unclaimed log block.
2846 */
2847 zdb_leak_init(spa, &zcb);
2848
2849 /*
2850 * If there's a deferred-free bplist, process that first.
2851 */
2852 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2853 count_block_cb, &zcb, NULL);
2854 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2855 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2856 count_block_cb, &zcb, NULL);
2857 }
2858 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2859 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2860 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2861 &zcb, NULL));
2862 }
2863
2864 if (dump_opt['c'] > 1)
2865 flags |= TRAVERSE_PREFETCH_DATA;
2866
2867 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2868 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2869 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2870
2871 /*
2872 * If we've traversed the data blocks then we need to wait for those
2873 * I/Os to complete. We leverage "The Godfather" zio to wait on
2874 * all async I/Os to complete.
2875 */
2876 if (dump_opt['c']) {
2877 for (int i = 0; i < max_ncpus; i++) {
2878 (void) zio_wait(spa->spa_async_zio_root[i]);
2879 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
2880 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2881 ZIO_FLAG_GODFATHER);
2882 }
2883 }
2884
2885 if (zcb.zcb_haderrors) {
2886 (void) printf("\nError counts:\n\n");
2887 (void) printf("\t%5s %s\n", "errno", "count");
2888 for (int e = 0; e < 256; e++) {
2889 if (zcb.zcb_errors[e] != 0) {
2890 (void) printf("\t%5d %llu\n",
2891 e, (u_longlong_t)zcb.zcb_errors[e]);
2892 }
2893 }
2894 }
2895
2896 /*
2897 * Report any leaked segments.
2898 */
2899 zdb_leak_fini(spa);
2900
2901 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2902
2903 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2904 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2905
2906 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2907 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2908
2909 if (total_found == total_alloc) {
2910 if (!dump_opt['L'])
2911 (void) printf("\n\tNo leaks (block sum matches space"
2912 " maps exactly)\n");
2913 } else {
2914 (void) printf("block traversal size %llu != alloc %llu "
2915 "(%s %lld)\n",
2916 (u_longlong_t)total_found,
2917 (u_longlong_t)total_alloc,
2918 (dump_opt['L']) ? "unreachable" : "leaked",
2919 (longlong_t)(total_alloc - total_found));
2920 leaks = B_TRUE;
2921 }
2922
2923 if (tzb->zb_count == 0)
2924 return (2);
2925
2926 (void) printf("\n");
2927 (void) printf("\tbp count: %10llu\n",
2928 (u_longlong_t)tzb->zb_count);
2929 (void) printf("\tganged count: %10llu\n",
2930 (longlong_t)tzb->zb_gangs);
2931 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2932 (u_longlong_t)tzb->zb_lsize,
2933 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2934 (void) printf("\tbp physical: %10llu avg:"
2935 " %6llu compression: %6.2f\n",
2936 (u_longlong_t)tzb->zb_psize,
2937 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2938 (double)tzb->zb_lsize / tzb->zb_psize);
2939 (void) printf("\tbp allocated: %10llu avg:"
2940 " %6llu compression: %6.2f\n",
2941 (u_longlong_t)tzb->zb_asize,
2942 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2943 (double)tzb->zb_lsize / tzb->zb_asize);
2944 (void) printf("\tbp deduped: %10llu ref>1:"
2945 " %6llu deduplication: %6.2f\n",
2946 (u_longlong_t)zcb.zcb_dedup_asize,
2947 (u_longlong_t)zcb.zcb_dedup_blocks,
2948 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2949 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2950 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2951
2952 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2953 if (zcb.zcb_embedded_blocks[i] == 0)
2954 continue;
2955 (void) printf("\n");
2956 (void) printf("\tadditional, non-pointer bps of type %u: "
2957 "%10llu\n",
2958 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2959
2960 if (dump_opt['b'] >= 3) {
2961 (void) printf("\t number of (compressed) bytes: "
2962 "number of bps\n");
2963 dump_histogram(zcb.zcb_embedded_histogram[i],
2964 sizeof (zcb.zcb_embedded_histogram[i]) /
2965 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2966 }
2967 }
2968
2969 if (tzb->zb_ditto_samevdev != 0) {
2970 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2971 (longlong_t)tzb->zb_ditto_samevdev);
2972 }
2973
2974 if (dump_opt['b'] >= 2) {
2975 int l, t, level;
2976 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2977 "\t avg\t comp\t%%Total\tType\n");
2978
2979 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2980 char csize[32], lsize[32], psize[32], asize[32];
2981 char avg[32], gang[32];
2982 char *typename;
2983
2984 if (t < DMU_OT_NUMTYPES)
2985 typename = dmu_ot[t].ot_name;
2986 else
2987 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2988
2989 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2990 (void) printf("%6s\t%5s\t%5s\t%5s"
2991 "\t%5s\t%5s\t%6s\t%s\n",
2992 "-",
2993 "-",
2994 "-",
2995 "-",
2996 "-",
2997 "-",
2998 "-",
2999 typename);
3000 continue;
3001 }
3002
3003 for (l = ZB_TOTAL - 1; l >= -1; l--) {
3004 level = (l == -1 ? ZB_TOTAL : l);
3005 zb = &zcb.zcb_type[level][t];
3006
3007 if (zb->zb_asize == 0)
3008 continue;
3009
3010 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
3011 continue;
3012
3013 if (level == 0 && zb->zb_asize ==
3014 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
3015 continue;
3016
3017 zdb_nicenum(zb->zb_count, csize);
3018 zdb_nicenum(zb->zb_lsize, lsize);
3019 zdb_nicenum(zb->zb_psize, psize);
3020 zdb_nicenum(zb->zb_asize, asize);
3021 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
3022 zdb_nicenum(zb->zb_gangs, gang);
3023
3024 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
3025 "\t%5.2f\t%6.2f\t",
3026 csize, lsize, psize, asize, avg,
3027 (double)zb->zb_lsize / zb->zb_psize,
3028 100.0 * zb->zb_asize / tzb->zb_asize);
3029
3030 if (level == ZB_TOTAL)
3031 (void) printf("%s\n", typename);
3032 else
3033 (void) printf(" L%d %s\n",
3034 level, typename);
3035
3036 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
3037 (void) printf("\t number of ganged "
3038 "blocks: %s\n", gang);
3039 }
3040
3041 if (dump_opt['b'] >= 4) {
3042 (void) printf("psize "
3043 "(in 512-byte sectors): "
3044 "number of blocks\n");
3045 dump_histogram(zb->zb_psize_histogram,
3046 PSIZE_HISTO_SIZE, 0);
3047 }
3048 }
3049 }
3050 }
3051
3052 (void) printf("\n");
3053
3054 if (leaks)
3055 return (2);
3056
3057 if (zcb.zcb_haderrors)
3058 return (3);
3059
3060 return (0);
3061 }
3062
3063 typedef struct zdb_ddt_entry {
3064 ddt_key_t zdde_key;
3065 uint64_t zdde_ref_blocks;
3066 uint64_t zdde_ref_lsize;
3067 uint64_t zdde_ref_psize;
3068 uint64_t zdde_ref_dsize;
3069 avl_node_t zdde_node;
3070 } zdb_ddt_entry_t;
3071
3072 /* ARGSUSED */
3073 static int
3074 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3075 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3076 {
3077 avl_tree_t *t = arg;
3078 avl_index_t where;
3079 zdb_ddt_entry_t *zdde, zdde_search;
3080
3081 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
3082 return (0);
3083
3084 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
3085 (void) printf("traversing objset %llu, %llu objects, "
3086 "%lu blocks so far\n",
3087 (u_longlong_t)zb->zb_objset,
3088 (u_longlong_t)BP_GET_FILL(bp),
3089 avl_numnodes(t));
3090 }
3091
3092 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
3093 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
3094 return (0);
3095
3096 ddt_key_fill(&zdde_search.zdde_key, bp);
3097
3098 zdde = avl_find(t, &zdde_search, &where);
3099
3100 if (zdde == NULL) {
3101 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
3102 zdde->zdde_key = zdde_search.zdde_key;
3103 avl_insert(t, zdde, where);
3104 }
3105
3106 zdde->zdde_ref_blocks += 1;
3107 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
3108 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
3109 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
3110
3111 return (0);
3112 }
3113
3114 static void
3115 dump_simulated_ddt(spa_t *spa)
3116 {
3117 avl_tree_t t;
3118 void *cookie = NULL;
3119 zdb_ddt_entry_t *zdde;
3120 ddt_histogram_t ddh_total = { 0 };
3121 ddt_stat_t dds_total = { 0 };
3122
3123 avl_create(&t, ddt_entry_compare,
3124 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
3125
3126 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3127
3128 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
3129 zdb_ddt_add_cb, &t);
3130
3131 spa_config_exit(spa, SCL_CONFIG, FTAG);
3132
3133 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
3134 ddt_stat_t dds;
3135 uint64_t refcnt = zdde->zdde_ref_blocks;
3136 ASSERT(refcnt != 0);
3137
3138 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
3139 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
3140 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
3141 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
3142
3143 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
3144 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
3145 dds.dds_ref_psize = zdde->zdde_ref_psize;
3146 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3147
3148 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3149 &dds, 0);
3150
3151 umem_free(zdde, sizeof (*zdde));
3152 }
3153
3154 avl_destroy(&t);
3155
3156 ddt_histogram_stat(&dds_total, &ddh_total);
3157
3158 (void) printf("Simulated DDT histogram:\n");
3159
3160 zpool_dump_ddt(&dds_total, &ddh_total);
3161
3162 dump_dedup_ratio(&dds_total);
3163 }
3164
3165 static void
3166 dump_zpool(spa_t *spa)
3167 {
3168 dsl_pool_t *dp = spa_get_dsl(spa);
3169 int rc = 0;
3170
3171 if (dump_opt['S']) {
3172 dump_simulated_ddt(spa);
3173 return;
3174 }
3175
3176 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3177 (void) printf("\nCached configuration:\n");
3178 dump_nvlist(spa->spa_config, 8);
3179 }
3180
3181 if (dump_opt['C'])
3182 dump_config(spa);
3183
3184 if (dump_opt['u'])
3185 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3186
3187 if (dump_opt['D'])
3188 dump_all_ddts(spa);
3189
3190 if (dump_opt['d'] > 2 || dump_opt['m'])
3191 dump_metaslabs(spa);
3192 if (dump_opt['M'])
3193 dump_metaslab_groups(spa);
3194
3195 if (dump_opt['d'] || dump_opt['i']) {
3196 dump_dir(dp->dp_meta_objset);
3197 if (dump_opt['d'] >= 3) {
3198 dump_full_bpobj(&spa->spa_deferred_bpobj,
3199 "Deferred frees", 0);
3200 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3201 dump_full_bpobj(
3202 &spa->spa_dsl_pool->dp_free_bpobj,
3203 "Pool snapshot frees", 0);
3204 }
3205
3206 if (spa_feature_is_active(spa,
3207 SPA_FEATURE_ASYNC_DESTROY)) {
3208 dump_bptree(spa->spa_meta_objset,
3209 spa->spa_dsl_pool->dp_bptree_obj,
3210 "Pool dataset frees");
3211 }
3212 dump_dtl(spa->spa_root_vdev, 0);
3213 }
3214 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3215 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3216
3217 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
3218 uint64_t refcount;
3219
3220 if (!(spa_feature_table[f].fi_flags &
3221 ZFEATURE_FLAG_PER_DATASET) ||
3222 !spa_feature_is_enabled(spa, f)) {
3223 ASSERT0(dataset_feature_count[f]);
3224 continue;
3225 }
3226 (void) feature_get_refcount(spa,
3227 &spa_feature_table[f], &refcount);
3228 if (dataset_feature_count[f] != refcount) {
3229 (void) printf("%s feature refcount mismatch: "
3230 "%lld datasets != %lld refcount\n",
3231 spa_feature_table[f].fi_uname,
3232 (longlong_t)dataset_feature_count[f],
3233 (longlong_t)refcount);
3234 rc = 2;
3235 } else {
3236 (void) printf("Verified %s feature refcount "
3237 "of %llu is correct\n",
3238 spa_feature_table[f].fi_uname,
3239 (longlong_t)refcount);
3240 }
3241 }
3242 }
3243 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3244 rc = dump_block_stats(spa);
3245
3246 if (rc == 0)
3247 rc = verify_spacemap_refcounts(spa);
3248
3249 if (dump_opt['s'])
3250 show_pool_stats(spa);
3251
3252 if (dump_opt['h'])
3253 dump_history(spa);
3254
3255 if (rc != 0) {
3256 dump_debug_buffer();
3257 exit(rc);
3258 }
3259 }
3260
3261 #define ZDB_FLAG_CHECKSUM 0x0001
3262 #define ZDB_FLAG_DECOMPRESS 0x0002
3263 #define ZDB_FLAG_BSWAP 0x0004
3264 #define ZDB_FLAG_GBH 0x0008
3265 #define ZDB_FLAG_INDIRECT 0x0010
3266 #define ZDB_FLAG_PHYS 0x0020
3267 #define ZDB_FLAG_RAW 0x0040
3268 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3269
3270 int flagbits[256];
3271
3272 static void
3273 zdb_print_blkptr(blkptr_t *bp, int flags)
3274 {
3275 char blkbuf[BP_SPRINTF_LEN];
3276
3277 if (flags & ZDB_FLAG_BSWAP)
3278 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3279
3280 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3281 (void) printf("%s\n", blkbuf);
3282 }
3283
3284 static void
3285 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3286 {
3287 int i;
3288
3289 for (i = 0; i < nbps; i++)
3290 zdb_print_blkptr(&bp[i], flags);
3291 }
3292
3293 static void
3294 zdb_dump_gbh(void *buf, int flags)
3295 {
3296 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3297 }
3298
3299 static void
3300 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3301 {
3302 if (flags & ZDB_FLAG_BSWAP)
3303 byteswap_uint64_array(buf, size);
3304 (void) write(1, buf, size);
3305 }
3306
3307 static void
3308 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3309 {
3310 uint64_t *d = (uint64_t *)buf;
3311 int nwords = size / sizeof (uint64_t);
3312 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3313 int i, j;
3314 char *hdr, *c;
3315
3316
3317 if (do_bswap)
3318 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3319 else
3320 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3321
3322 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3323
3324 for (i = 0; i < nwords; i += 2) {
3325 (void) printf("%06llx: %016llx %016llx ",
3326 (u_longlong_t)(i * sizeof (uint64_t)),
3327 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3328 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3329
3330 c = (char *)&d[i];
3331 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3332 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3333 (void) printf("\n");
3334 }
3335 }
3336
3337 /*
3338 * There are two acceptable formats:
3339 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3340 * child[.child]* - For example: 0.1.1
3341 *
3342 * The second form can be used to specify arbitrary vdevs anywhere
3343 * in the heirarchy. For example, in a pool with a mirror of
3344 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3345 */
3346 static vdev_t *
3347 zdb_vdev_lookup(vdev_t *vdev, char *path)
3348 {
3349 char *s, *p, *q;
3350 int i;
3351
3352 if (vdev == NULL)
3353 return (NULL);
3354
3355 /* First, assume the x.x.x.x format */
3356 i = (int)strtoul(path, &s, 10);
3357 if (s == path || (s && *s != '.' && *s != '\0'))
3358 goto name;
3359 if (i < 0 || i >= vdev->vdev_children)
3360 return (NULL);
3361
3362 vdev = vdev->vdev_child[i];
3363 if (*s == '\0')
3364 return (vdev);
3365 return (zdb_vdev_lookup(vdev, s+1));
3366
3367 name:
3368 for (i = 0; i < vdev->vdev_children; i++) {
3369 vdev_t *vc = vdev->vdev_child[i];
3370
3371 if (vc->vdev_path == NULL) {
3372 vc = zdb_vdev_lookup(vc, path);
3373 if (vc == NULL)
3374 continue;
3375 else
3376 return (vc);
3377 }
3378
3379 p = strrchr(vc->vdev_path, '/');
3380 p = p ? p + 1 : vc->vdev_path;
3381 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3382
3383 if (strcmp(vc->vdev_path, path) == 0)
3384 return (vc);
3385 if (strcmp(p, path) == 0)
3386 return (vc);
3387 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3388 return (vc);
3389 }
3390
3391 return (NULL);
3392 }
3393
3394 /*
3395 * Read a block from a pool and print it out. The syntax of the
3396 * block descriptor is:
3397 *
3398 * pool:vdev_specifier:offset:size[:flags]
3399 *
3400 * pool - The name of the pool you wish to read from
3401 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3402 * offset - offset, in hex, in bytes
3403 * size - Amount of data to read, in hex, in bytes
3404 * flags - A string of characters specifying options
3405 * b: Decode a blkptr at given offset within block
3406 * *c: Calculate and display checksums
3407 * d: Decompress data before dumping
3408 * e: Byteswap data before dumping
3409 * g: Display data as a gang block header
3410 * i: Display as an indirect block
3411 * p: Do I/O to physical offset
3412 * r: Dump raw data to stdout
3413 *
3414 * * = not yet implemented
3415 */
3416 static void
3417 zdb_read_block(char *thing, spa_t *spa)
3418 {
3419 blkptr_t blk, *bp = &blk;
3420 dva_t *dva = bp->blk_dva;
3421 int flags = 0;
3422 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3423 zio_t *zio;
3424 vdev_t *vd;
3425 void *pbuf, *lbuf, *buf;
3426 char *s, *p, *dup, *vdev, *flagstr;
3427 int i, error;
3428
3429 dup = strdup(thing);
3430 s = strtok(dup, ":");
3431 vdev = s ? s : "";
3432 s = strtok(NULL, ":");
3433 offset = strtoull(s ? s : "", NULL, 16);
3434 s = strtok(NULL, ":");
3435 size = strtoull(s ? s : "", NULL, 16);
3436 s = strtok(NULL, ":");
3437 flagstr = s ? s : "";
3438
3439 s = NULL;
3440 if (size == 0)
3441 s = "size must not be zero";
3442 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3443 s = "size must be a multiple of sector size";
3444 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3445 s = "offset must be a multiple of sector size";
3446 if (s) {
3447 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3448 free(dup);
3449 return;
3450 }
3451
3452 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3453 for (i = 0; flagstr[i]; i++) {
3454 int bit = flagbits[(uchar_t)flagstr[i]];
3455
3456 if (bit == 0) {
3457 (void) printf("***Invalid flag: %c\n",
3458 flagstr[i]);
3459 continue;
3460 }
3461 flags |= bit;
3462
3463 /* If it's not something with an argument, keep going */
3464 if ((bit & (ZDB_FLAG_CHECKSUM |
3465 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3466 continue;
3467
3468 p = &flagstr[i + 1];
3469 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3470 blkptr_offset = strtoull(p, &p, 16);
3471 if (*p != ':' && *p != '\0') {
3472 (void) printf("***Invalid flag arg: '%s'\n", s);
3473 free(dup);
3474 return;
3475 }
3476 }
3477 }
3478
3479 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3480 if (vd == NULL) {
3481 (void) printf("***Invalid vdev: %s\n", vdev);
3482 free(dup);
3483 return;
3484 } else {
3485 if (vd->vdev_path)
3486 (void) fprintf(stderr, "Found vdev: %s\n",
3487 vd->vdev_path);
3488 else
3489 (void) fprintf(stderr, "Found vdev type: %s\n",
3490 vd->vdev_ops->vdev_op_type);
3491 }
3492
3493 psize = size;
3494 lsize = size;
3495
3496 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3497 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3498
3499 BP_ZERO(bp);
3500
3501 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3502 DVA_SET_OFFSET(&dva[0], offset);
3503 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3504 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3505
3506 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3507
3508 BP_SET_LSIZE(bp, lsize);
3509 BP_SET_PSIZE(bp, psize);
3510 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3511 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3512 BP_SET_TYPE(bp, DMU_OT_NONE);
3513 BP_SET_LEVEL(bp, 0);
3514 BP_SET_DEDUP(bp, 0);
3515 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3516
3517 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3518 zio = zio_root(spa, NULL, NULL, 0);
3519
3520 if (vd == vd->vdev_top) {
3521 /*
3522 * Treat this as a normal block read.
3523 */
3524 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3525 ZIO_PRIORITY_SYNC_READ,
3526 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3527 } else {
3528 /*
3529 * Treat this as a vdev child I/O.
3530 */
3531 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3532 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3533 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3534 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3535 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3536 }
3537
3538 error = zio_wait(zio);
3539 spa_config_exit(spa, SCL_STATE, FTAG);
3540
3541 if (error) {
3542 (void) printf("Read of %s failed, error: %d\n", thing, error);
3543 goto out;
3544 }
3545
3546 if (flags & ZDB_FLAG_DECOMPRESS) {
3547 /*
3548 * We don't know how the data was compressed, so just try
3549 * every decompress function at every inflated blocksize.
3550 */
3551 enum zio_compress c;
3552 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3553 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3554
3555 bcopy(pbuf, pbuf2, psize);
3556
3557 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3558 SPA_MAXBLOCKSIZE - psize) == 0);
3559
3560 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3561 SPA_MAXBLOCKSIZE - psize) == 0);
3562
3563 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3564 lsize -= SPA_MINBLOCKSIZE) {
3565 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3566 if (zio_decompress_data(c, pbuf, lbuf,
3567 psize, lsize) == 0 &&
3568 zio_decompress_data(c, pbuf2, lbuf2,
3569 psize, lsize) == 0 &&
3570 bcmp(lbuf, lbuf2, lsize) == 0)
3571 break;
3572 }
3573 if (c != ZIO_COMPRESS_FUNCTIONS)
3574 break;
3575 lsize -= SPA_MINBLOCKSIZE;
3576 }
3577
3578 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3579 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3580
3581 if (lsize <= psize) {
3582 (void) printf("Decompress of %s failed\n", thing);
3583 goto out;
3584 }
3585 buf = lbuf;
3586 size = lsize;
3587 } else {
3588 buf = pbuf;
3589 size = psize;
3590 }
3591
3592 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3593 zdb_print_blkptr((blkptr_t *)(void *)
3594 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3595 else if (flags & ZDB_FLAG_RAW)
3596 zdb_dump_block_raw(buf, size, flags);
3597 else if (flags & ZDB_FLAG_INDIRECT)
3598 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3599 flags);
3600 else if (flags & ZDB_FLAG_GBH)
3601 zdb_dump_gbh(buf, flags);
3602 else
3603 zdb_dump_block(thing, buf, size, flags);
3604
3605 out:
3606 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3607 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3608 free(dup);
3609 }
3610
3611 static boolean_t
3612 pool_match(nvlist_t *cfg, char *tgt)
3613 {
3614 uint64_t v, guid = strtoull(tgt, NULL, 0);
3615 char *s;
3616
3617 if (guid != 0) {
3618 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3619 return (v == guid);
3620 } else {
3621 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3622 return (strcmp(s, tgt) == 0);
3623 }
3624 return (B_FALSE);
3625 }
3626
3627 static char *
3628 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3629 {
3630 nvlist_t *pools;
3631 nvlist_t *match = NULL;
3632 char *name = NULL;
3633 char *sepp = NULL;
3634 char sep = '\0';
3635 int count = 0;
3636 importargs_t args = { 0 };
3637
3638 args.paths = dirc;
3639 args.path = dirv;
3640 args.can_be_active = B_TRUE;
3641
3642 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3643 sep = *sepp;
3644 *sepp = '\0';
3645 }
3646
3647 pools = zpool_search_import(g_zfs, &args);
3648
3649 if (pools != NULL) {
3650 nvpair_t *elem = NULL;
3651 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3652 verify(nvpair_value_nvlist(elem, configp) == 0);
3653 if (pool_match(*configp, *target)) {
3654 count++;
3655 if (match != NULL) {
3656 /* print previously found config */
3657 if (name != NULL) {
3658 (void) printf("%s\n", name);
3659 dump_nvlist(match, 8);
3660 name = NULL;
3661 }
3662 (void) printf("%s\n",
3663 nvpair_name(elem));
3664 dump_nvlist(*configp, 8);
3665 } else {
3666 match = *configp;
3667 name = nvpair_name(elem);
3668 }
3669 }
3670 }
3671 }
3672 if (count > 1)
3673 (void) fatal("\tMatched %d pools - use pool GUID "
3674 "instead of pool name or \n"
3675 "\tpool name part of a dataset name to select pool", count);
3676
3677 if (sepp)
3678 *sepp = sep;
3679 /*
3680 * If pool GUID was specified for pool id, replace it with pool name
3681 */
3682 if (name && (strstr(*target, name) != *target)) {
3683 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3684
3685 *target = umem_alloc(sz, UMEM_NOFAIL);
3686 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3687 }
3688
3689 *configp = name ? match : NULL;
3690
3691 return (name);
3692 }
3693
3694 int
3695 main(int argc, char **argv)
3696 {
3697 int i, c;
3698 struct rlimit rl = { 1024, 1024 };
3699 spa_t *spa = NULL;
3700 objset_t *os = NULL;
3701 int dump_all = 1;
3702 int verbose = 0;
3703 int error = 0;
3704 char **searchdirs = NULL;
3705 int nsearch = 0;
3706 char *target;
3707 nvlist_t *policy = NULL;
3708 uint64_t max_txg = UINT64_MAX;
3709 int rewind = ZPOOL_NEVER_REWIND;
3710 char *spa_config_path_env;
3711 boolean_t target_is_spa = B_TRUE;
3712
3713 (void) setrlimit(RLIMIT_NOFILE, &rl);
3714 (void) enable_extended_FILE_stdio(-1, -1);
3715
3716 dprintf_setup(&argc, argv);
3717
3718 /*
3719 * If there is an environment variable SPA_CONFIG_PATH it overrides
3720 * default spa_config_path setting. If -U flag is specified it will
3721 * override this environment variable settings once again.
3722 */
3723 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3724 if (spa_config_path_env != NULL)
3725 spa_config_path = spa_config_path_env;
3726
3727 while ((c = getopt(argc, argv,
3728 "AbcCdDeFGhiI:lLmMo:Op:PqRsSt:uU:vx:X")) != -1) {
3729 switch (c) {
3730 case 'b':
3731 case 'c':
3732 case 'C':
3733 case 'd':
3734 case 'D':
3735 case 'G':
3736 case 'h':
3737 case 'i':
3738 case 'l':
3739 case 'm':
3740 case 'M':
3741 case 'O':
3742 case 'R':
3743 case 's':
3744 case 'S':
3745 case 'u':
3746 dump_opt[c]++;
3747 dump_all = 0;
3748 break;
3749 case 'A':
3750 case 'e':
3751 case 'F':
3752 case 'L':
3753 case 'P':
3754 case 'q':
3755 case 'X':
3756 dump_opt[c]++;
3757 break;
3758 /* NB: Sort single match options below. */
3759 case 'I':
3760 max_inflight = strtoull(optarg, NULL, 0);
3761 if (max_inflight == 0) {
3762 (void) fprintf(stderr, "maximum number "
3763 "of inflight I/Os must be greater "
3764 "than 0\n");
3765 usage();
3766 }
3767 break;
3768 case 'o':
3769 error = set_global_var(optarg);
3770 if (error != 0)
3771 usage();
3772 break;
3773 case 'p':
3774 if (searchdirs == NULL) {
3775 searchdirs = umem_alloc(sizeof (char *),
3776 UMEM_NOFAIL);
3777 } else {
3778 char **tmp = umem_alloc((nsearch + 1) *
3779 sizeof (char *), UMEM_NOFAIL);
3780 bcopy(searchdirs, tmp, nsearch *
3781 sizeof (char *));
3782 umem_free(searchdirs,
3783 nsearch * sizeof (char *));
3784 searchdirs = tmp;
3785 }
3786 searchdirs[nsearch++] = optarg;
3787 break;
3788 case 't':
3789 max_txg = strtoull(optarg, NULL, 0);
3790 if (max_txg < TXG_INITIAL) {
3791 (void) fprintf(stderr, "incorrect txg "
3792 "specified: %s\n", optarg);
3793 usage();
3794 }
3795 break;
3796 case 'U':
3797 spa_config_path = optarg;
3798 break;
3799 case 'v':
3800 verbose++;
3801 break;
3802 case 'x':
3803 vn_dumpdir = optarg;
3804 break;
3805 default:
3806 usage();
3807 break;
3808 }
3809 }
3810
3811 if (!dump_opt['e'] && searchdirs != NULL) {
3812 (void) fprintf(stderr, "-p option requires use of -e\n");
3813 usage();
3814 }
3815
3816 /*
3817 * ZDB does not typically re-read blocks; therefore limit the ARC
3818 * to 256 MB, which can be used entirely for metadata.
3819 */
3820 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
3821
3822 /*
3823 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
3824 * "zdb -b" uses traversal prefetch which uses async reads.
3825 * For good performance, let several of them be active at once.
3826 */
3827 zfs_vdev_async_read_max_active = 10;
3828
3829 /*
3830 * Disable reference tracking for better performance.
3831 */
3832 reference_tracking_enable = B_FALSE;
3833
3834 kernel_init(FREAD);
3835 g_zfs = libzfs_init();
3836 ASSERT(g_zfs != NULL);
3837
3838 if (dump_all)
3839 verbose = MAX(verbose, 1);
3840
3841 for (c = 0; c < 256; c++) {
3842 if (dump_all && strchr("AeFlLOPRSX", c) == NULL)
3843 dump_opt[c] = 1;
3844 if (dump_opt[c])
3845 dump_opt[c] += verbose;
3846 }
3847
3848 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3849 zfs_recover = (dump_opt['A'] > 1);
3850
3851 argc -= optind;
3852 argv += optind;
3853
3854 if (argc < 2 && dump_opt['R'])
3855 usage();
3856 if (argc < 1) {
3857 if (!dump_opt['e'] && dump_opt['C']) {
3858 dump_cachefile(spa_config_path);
3859 return (0);
3860 }
3861 usage();
3862 }
3863
3864 if (dump_opt['l'])
3865 return (dump_label(argv[0]));
3866
3867 if (dump_opt['O']) {
3868 if (argc != 2)
3869 usage();
3870 dump_opt['v'] = verbose + 3;
3871 return (dump_path(argv[0], argv[1]));
3872 }
3873
3874 if (dump_opt['X'] || dump_opt['F'])
3875 rewind = ZPOOL_DO_REWIND |
3876 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3877
3878 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3879 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3880 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3881 fatal("internal error: %s", strerror(ENOMEM));
3882
3883 error = 0;
3884 target = argv[0];
3885
3886 if (dump_opt['e']) {
3887 nvlist_t *cfg = NULL;
3888 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3889
3890 error = ENOENT;
3891 if (name) {
3892 if (dump_opt['C'] > 1) {
3893 (void) printf("\nConfiguration for import:\n");
3894 dump_nvlist(cfg, 8);
3895 }
3896 if (nvlist_add_nvlist(cfg,
3897 ZPOOL_REWIND_POLICY, policy) != 0) {
3898 fatal("can't open '%s': %s",
3899 target, strerror(ENOMEM));
3900 }
3901 if ((error = spa_import(name, cfg, NULL,
3902 ZFS_IMPORT_MISSING_LOG)) != 0) {
3903 error = spa_import(name, cfg, NULL,
3904 ZFS_IMPORT_VERBATIM);
3905 }
3906 }
3907 }
3908
3909 if (strpbrk(target, "/@") != NULL) {
3910 size_t targetlen;
3911
3912 target_is_spa = B_FALSE;
3913 /*
3914 * Remove any trailing slash. Later code would get confused
3915 * by it, but we want to allow it so that "pool/" can
3916 * indicate that we want to dump the topmost filesystem,
3917 * rather than the whole pool.
3918 */
3919 targetlen = strlen(target);
3920 if (targetlen != 0 && target[targetlen - 1] == '/')
3921 target[targetlen - 1] = '\0';
3922 }
3923
3924 if (error == 0) {
3925 if (target_is_spa || dump_opt['R']) {
3926 error = spa_open_rewind(target, &spa, FTAG, policy,
3927 NULL);
3928 if (error) {
3929 /*
3930 * If we're missing the log device then
3931 * try opening the pool after clearing the
3932 * log state.
3933 */
3934 mutex_enter(&spa_namespace_lock);
3935 if ((spa = spa_lookup(target)) != NULL &&
3936 spa->spa_log_state == SPA_LOG_MISSING) {
3937 spa->spa_log_state = SPA_LOG_CLEAR;
3938 error = 0;
3939 }
3940 mutex_exit(&spa_namespace_lock);
3941
3942 if (!error) {
3943 error = spa_open_rewind(target, &spa,
3944 FTAG, policy, NULL);
3945 }
3946 }
3947 } else {
3948 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
3949 }
3950 }
3951 nvlist_free(policy);
3952
3953 if (error)
3954 fatal("can't open '%s': %s", target, strerror(error));
3955
3956 argv++;
3957 argc--;
3958 if (!dump_opt['R']) {
3959 if (argc > 0) {
3960 zopt_objects = argc;
3961 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3962 for (i = 0; i < zopt_objects; i++) {
3963 errno = 0;
3964 zopt_object[i] = strtoull(argv[i], NULL, 0);
3965 if (zopt_object[i] == 0 && errno != 0)
3966 fatal("bad number %s: %s",
3967 argv[i], strerror(errno));
3968 }
3969 }
3970 if (os != NULL) {
3971 dump_dir(os);
3972 } else if (zopt_objects > 0 && !dump_opt['m']) {
3973 dump_dir(spa->spa_meta_objset);
3974 } else {
3975 dump_zpool(spa);
3976 }
3977 } else {
3978 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3979 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3980 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3981 flagbits['e'] = ZDB_FLAG_BSWAP;
3982 flagbits['g'] = ZDB_FLAG_GBH;
3983 flagbits['i'] = ZDB_FLAG_INDIRECT;
3984 flagbits['p'] = ZDB_FLAG_PHYS;
3985 flagbits['r'] = ZDB_FLAG_RAW;
3986
3987 for (i = 0; i < argc; i++)
3988 zdb_read_block(argv[i], spa);
3989 }
3990
3991 if (os != NULL)
3992 close_objset(os, FTAG);
3993 else
3994 spa_close(spa, FTAG);
3995
3996 fuid_table_destroy();
3997
3998 dump_debug_buffer();
3999
4000 libzfs_fini(g_zfs);
4001 kernel_fini();
4002
4003 return (0);
4004 }
Unleashed OS