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add UNLEASHED_OBJ to unleashed.mk
[unleashed/tickless.git] / usr / src / cmd / zdb / zdb.c
blobf66f9f6beaff2958287932985306a53cb2654e42
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2017 Nexenta Systems, Inc.
27 */
28
29 #include <stdio.h>
30 #include <unistd.h>
31 #include <stdio_ext.h>
32 #include <stdlib.h>
33 #include <ctype.h>
34 #include <sys/zfs_context.h>
35 #include <sys/spa.h>
36 #include <sys/spa_impl.h>
37 #include <sys/dmu.h>
38 #include <sys/zap.h>
39 #include <sys/fs/zfs.h>
40 #include <sys/zfs_znode.h>
41 #include <sys/zfs_sa.h>
42 #include <sys/sa.h>
43 #include <sys/sa_impl.h>
44 #include <sys/vdev.h>
45 #include <sys/vdev_impl.h>
46 #include <sys/metaslab_impl.h>
47 #include <sys/dmu_objset.h>
48 #include <sys/dsl_dir.h>
49 #include <sys/dsl_dataset.h>
50 #include <sys/dsl_pool.h>
51 #include <sys/dbuf.h>
52 #include <sys/zil.h>
53 #include <sys/zil_impl.h>
54 #include <sys/stat.h>
55 #include <sys/resource.h>
56 #include <sys/dmu_traverse.h>
57 #include <sys/zio_checksum.h>
58 #include <sys/zio_compress.h>
59 #include <sys/zfs_fuid.h>
60 #include <sys/arc.h>
61 #include <sys/ddt.h>
62 #include <sys/zfeature.h>
63 #include <sys/abd.h>
64 #include <sys/blkptr.h>
65 #include <zfs_comutil.h>
66 #undef verify
67 #include <libzfs.h>
68
69 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
70 zio_compress_table[(idx)].ci_name : "UNKNOWN")
71 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
72 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
73 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
74 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
75 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
76 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
77 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
78 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
79
80 extern int reference_tracking_enable;
81 extern boolean_t zfs_recover;
82 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
83 extern int zfs_vdev_async_read_max_active;
84
85 const char cmdname[] = "zdb";
86 uint8_t dump_opt[256];
87
88 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
89
90 extern void dump_intent_log(zilog_t *);
91 uint64_t *zopt_object = NULL;
92 int zopt_objects = 0;
93 libzfs_handle_t *g_zfs;
94 uint64_t max_inflight = 1000;
95
96 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
97
98 /*
99 * These libumem hooks provide a reasonable set of defaults for the allocator's
100 * debugging facilities.
101 */
102 const char *
103 _umem_debug_init()
104 {
105 return ("default,verbose"); /* $UMEM_DEBUG setting */
106 }
107
108 const char *
109 _umem_logging_init(void)
110 {
111 return ("fail,contents"); /* $UMEM_LOGGING setting */
112 }
113
114 static void
115 usage(void)
116 {
117 (void) fprintf(stderr,
118 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] "
119 "[-I <inflight I/Os>]\n"
120 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
121 "\t\t[<poolname> [<object> ...]]\n"
122 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> "
123 "[<object> ...]\n"
124 "\t%s -C [-A] [-U <cache>]\n"
125 "\t%s -l [-Aqu] <device>\n"
126 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
127 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
128 "\t%s -O <dataset> <path>\n"
129 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
130 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
131 "\t%s -E [-A] word0:word1:...:word15\n"
132 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
133 "<poolname>\n\n",
134 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
135 cmdname, cmdname);
136
137 (void) fprintf(stderr, " Dataset name must include at least one "
138 "separator character '/' or '@'\n");
139 (void) fprintf(stderr, " If dataset name is specified, only that "
140 "dataset is dumped\n");
141 (void) fprintf(stderr, " If object numbers are specified, only "
142 "those objects are dumped\n\n");
143 (void) fprintf(stderr, " Options to control amount of output:\n");
144 (void) fprintf(stderr, " -b block statistics\n");
145 (void) fprintf(stderr, " -c checksum all metadata (twice for "
146 "all data) blocks\n");
147 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
148 (void) fprintf(stderr, " -d dataset(s)\n");
149 (void) fprintf(stderr, " -D dedup statistics\n");
150 (void) fprintf(stderr, " -E decode and display block from an "
151 "embedded block pointer\n");
152 (void) fprintf(stderr, " -h pool history\n");
153 (void) fprintf(stderr, " -i intent logs\n");
154 (void) fprintf(stderr, " -l read label contents\n");
155 (void) fprintf(stderr, " -L disable leak tracking (do not "
156 "load spacemaps)\n");
157 (void) fprintf(stderr, " -m metaslabs\n");
158 (void) fprintf(stderr, " -M metaslab groups\n");
159 (void) fprintf(stderr, " -O perform object lookups by path\n");
160 (void) fprintf(stderr, " -R read and display block from a "
161 "device\n");
162 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
163 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
164 (void) fprintf(stderr, " -v verbose (applies to all "
165 "others)\n\n");
166 (void) fprintf(stderr, " Below options are intended for use "
167 "with other options:\n");
168 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
169 "panic recovery (-AA) or both (-AAA)\n");
170 (void) fprintf(stderr, " -e pool is exported/destroyed/"
171 "has altroot/not in a cachefile\n");
172 (void) fprintf(stderr, " -F attempt automatic rewind within "
173 "safe range of transaction groups\n");
174 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
175 "exiting\n");
176 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
177 "specify the maximum number of "
178 "checksumming I/Os [default is 200]\n");
179 (void) fprintf(stderr, " -o <variable>=<value> set global "
180 "variable to an unsigned 32-bit integer value\n");
181 (void) fprintf(stderr, " -p <path> -- use one or more with "
182 "-e to specify path to vdev dir\n");
183 (void) fprintf(stderr, " -P print numbers in parseable form\n");
184 (void) fprintf(stderr, " -q don't print label contents\n");
185 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
186 "searching for uberblocks\n");
187 (void) fprintf(stderr, " -u uberblock\n");
188 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
189 "cachefile\n");
190 (void) fprintf(stderr, " -V do verbatim import\n");
191 (void) fprintf(stderr, " -x <dumpdir> -- "
192 "dump all read blocks into specified directory\n");
193 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
194 "work with dataset)\n\n");
195 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
196 "to make only that option verbose\n");
197 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
198 exit(1);
199 }
200
201 static void
202 dump_debug_buffer()
203 {
204 if (dump_opt['G']) {
205 (void) printf("\n");
206 zfs_dbgmsg_print("zdb");
207 }
208 }
209
210 /*
211 * Called for usage errors that are discovered after a call to spa_open(),
212 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
213 */
214
215 static void
216 fatal(const char *fmt, ...)
217 {
218 va_list ap;
219
220 va_start(ap, fmt);
221 (void) fprintf(stderr, "%s: ", cmdname);
222 (void) vfprintf(stderr, fmt, ap);
223 va_end(ap);
224 (void) fprintf(stderr, "\n");
225
226 dump_debug_buffer();
227
228 exit(1);
229 }
230
231 /* ARGSUSED */
232 static void
233 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
234 {
235 nvlist_t *nv;
236 size_t nvsize = *(uint64_t *)data;
237 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
238
239 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
240
241 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
242
243 umem_free(packed, nvsize);
244
245 dump_nvlist(nv, 8);
246
247 nvlist_free(nv);
248 }
249
250 /* ARGSUSED */
251 static void
252 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
253 {
254 spa_history_phys_t *shp = data;
255
256 if (shp == NULL)
257 return;
258
259 (void) printf("\t\tpool_create_len = %llu\n",
260 (u_longlong_t)shp->sh_pool_create_len);
261 (void) printf("\t\tphys_max_off = %llu\n",
262 (u_longlong_t)shp->sh_phys_max_off);
263 (void) printf("\t\tbof = %llu\n",
264 (u_longlong_t)shp->sh_bof);
265 (void) printf("\t\teof = %llu\n",
266 (u_longlong_t)shp->sh_eof);
267 (void) printf("\t\trecords_lost = %llu\n",
268 (u_longlong_t)shp->sh_records_lost);
269 }
270
271 static void
272 zdb_nicenum(uint64_t num, char *buf)
273 {
274 if (dump_opt['P'])
275 (void) sprintf(buf, "%llu", (longlong_t)num);
276 else
277 nicenum(num, buf);
278 }
279
280 const char histo_stars[] = "****************************************";
281 const int histo_width = sizeof (histo_stars) - 1;
282
283 static void
284 dump_histogram(const uint64_t *histo, int size, int offset)
285 {
286 int i;
287 int minidx = size - 1;
288 int maxidx = 0;
289 uint64_t max = 0;
290
291 for (i = 0; i < size; i++) {
292 if (histo[i] > max)
293 max = histo[i];
294 if (histo[i] > 0 && i > maxidx)
295 maxidx = i;
296 if (histo[i] > 0 && i < minidx)
297 minidx = i;
298 }
299
300 if (max < histo_width)
301 max = histo_width;
302
303 for (i = minidx; i <= maxidx; i++) {
304 (void) printf("\t\t\t%3u: %6llu %s\n",
305 i + offset, (u_longlong_t)histo[i],
306 &histo_stars[(max - histo[i]) * histo_width / max]);
307 }
308 }
309
310 static void
311 dump_zap_stats(objset_t *os, uint64_t object)
312 {
313 int error;
314 zap_stats_t zs;
315
316 error = zap_get_stats(os, object, &zs);
317 if (error)
318 return;
319
320 if (zs.zs_ptrtbl_len == 0) {
321 ASSERT(zs.zs_num_blocks == 1);
322 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
323 (u_longlong_t)zs.zs_blocksize,
324 (u_longlong_t)zs.zs_num_entries);
325 return;
326 }
327
328 (void) printf("\tFat ZAP stats:\n");
329
330 (void) printf("\t\tPointer table:\n");
331 (void) printf("\t\t\t%llu elements\n",
332 (u_longlong_t)zs.zs_ptrtbl_len);
333 (void) printf("\t\t\tzt_blk: %llu\n",
334 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
335 (void) printf("\t\t\tzt_numblks: %llu\n",
336 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
337 (void) printf("\t\t\tzt_shift: %llu\n",
338 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
339 (void) printf("\t\t\tzt_blks_copied: %llu\n",
340 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
341 (void) printf("\t\t\tzt_nextblk: %llu\n",
342 (u_longlong_t)zs.zs_ptrtbl_nextblk);
343
344 (void) printf("\t\tZAP entries: %llu\n",
345 (u_longlong_t)zs.zs_num_entries);
346 (void) printf("\t\tLeaf blocks: %llu\n",
347 (u_longlong_t)zs.zs_num_leafs);
348 (void) printf("\t\tTotal blocks: %llu\n",
349 (u_longlong_t)zs.zs_num_blocks);
350 (void) printf("\t\tzap_block_type: 0x%llx\n",
351 (u_longlong_t)zs.zs_block_type);
352 (void) printf("\t\tzap_magic: 0x%llx\n",
353 (u_longlong_t)zs.zs_magic);
354 (void) printf("\t\tzap_salt: 0x%llx\n",
355 (u_longlong_t)zs.zs_salt);
356
357 (void) printf("\t\tLeafs with 2^n pointers:\n");
358 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
359
360 (void) printf("\t\tBlocks with n*5 entries:\n");
361 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
362
363 (void) printf("\t\tBlocks n/10 full:\n");
364 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
365
366 (void) printf("\t\tEntries with n chunks:\n");
367 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
368
369 (void) printf("\t\tBuckets with n entries:\n");
370 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
371 }
372
373 /*ARGSUSED*/
374 static void
375 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
376 {
377 }
378
379 /*ARGSUSED*/
380 static void
381 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
382 {
383 (void) printf("\tUNKNOWN OBJECT TYPE\n");
384 }
385
386 /*ARGSUSED*/
387 void
388 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
389 {
390 }
391
392 /*ARGSUSED*/
393 static void
394 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
395 {
396 }
397
398 /*ARGSUSED*/
399 static void
400 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
401 {
402 zap_cursor_t zc;
403 zap_attribute_t attr;
404 void *prop;
405 int i;
406
407 dump_zap_stats(os, object);
408 (void) printf("\n");
409
410 for (zap_cursor_init(&zc, os, object);
411 zap_cursor_retrieve(&zc, &attr) == 0;
412 zap_cursor_advance(&zc)) {
413 (void) printf("\t\t%s = ", attr.za_name);
414 if (attr.za_num_integers == 0) {
415 (void) printf("\n");
416 continue;
417 }
418 prop = umem_zalloc(attr.za_num_integers *
419 attr.za_integer_length, UMEM_NOFAIL);
420 (void) zap_lookup(os, object, attr.za_name,
421 attr.za_integer_length, attr.za_num_integers, prop);
422 if (attr.za_integer_length == 1) {
423 (void) printf("%s", (char *)prop);
424 } else {
425 for (i = 0; i < attr.za_num_integers; i++) {
426 switch (attr.za_integer_length) {
427 case 2:
428 (void) printf("%u ",
429 ((uint16_t *)prop)[i]);
430 break;
431 case 4:
432 (void) printf("%u ",
433 ((uint32_t *)prop)[i]);
434 break;
435 case 8:
436 (void) printf("%lld ",
437 (u_longlong_t)((int64_t *)prop)[i]);
438 break;
439 }
440 }
441 }
442 (void) printf("\n");
443 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
444 }
445 zap_cursor_fini(&zc);
446 }
447
448 static void
449 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
450 {
451 bpobj_phys_t *bpop = data;
452 char bytes[32], comp[32], uncomp[32];
453
454 if (bpop == NULL)
455 return;
456
457 zdb_nicenum(bpop->bpo_bytes, bytes);
458 zdb_nicenum(bpop->bpo_comp, comp);
459 zdb_nicenum(bpop->bpo_uncomp, uncomp);
460
461 (void) printf("\t\tnum_blkptrs = %llu\n",
462 (u_longlong_t)bpop->bpo_num_blkptrs);
463 (void) printf("\t\tbytes = %s\n", bytes);
464 if (size >= BPOBJ_SIZE_V1) {
465 (void) printf("\t\tcomp = %s\n", comp);
466 (void) printf("\t\tuncomp = %s\n", uncomp);
467 }
468 if (size >= sizeof (*bpop)) {
469 (void) printf("\t\tsubobjs = %llu\n",
470 (u_longlong_t)bpop->bpo_subobjs);
471 (void) printf("\t\tnum_subobjs = %llu\n",
472 (u_longlong_t)bpop->bpo_num_subobjs);
473 }
474
475 if (dump_opt['d'] < 5)
476 return;
477
478 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
479 char blkbuf[BP_SPRINTF_LEN];
480 blkptr_t bp;
481
482 int err = dmu_read(os, object,
483 i * sizeof (bp), sizeof (bp), &bp, 0);
484 if (err != 0) {
485 (void) printf("got error %u from dmu_read\n", err);
486 break;
487 }
488 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
489 (void) printf("\t%s\n", blkbuf);
490 }
491 }
492
493 /* ARGSUSED */
494 static void
495 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
496 {
497 dmu_object_info_t doi;
498
499 VERIFY0(dmu_object_info(os, object, &doi));
500 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
501
502 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
503 if (err != 0) {
504 (void) printf("got error %u from dmu_read\n", err);
505 kmem_free(subobjs, doi.doi_max_offset);
506 return;
507 }
508
509 int64_t last_nonzero = -1;
510 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
511 if (subobjs[i] != 0)
512 last_nonzero = i;
513 }
514
515 for (int64_t i = 0; i <= last_nonzero; i++) {
516 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
517 }
518 kmem_free(subobjs, doi.doi_max_offset);
519 }
520
521 /*ARGSUSED*/
522 static void
523 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
524 {
525 dump_zap_stats(os, object);
526 /* contents are printed elsewhere, properly decoded */
527 }
528
529 /*ARGSUSED*/
530 static void
531 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
532 {
533 zap_cursor_t zc;
534 zap_attribute_t attr;
535
536 dump_zap_stats(os, object);
537 (void) printf("\n");
538
539 for (zap_cursor_init(&zc, os, object);
540 zap_cursor_retrieve(&zc, &attr) == 0;
541 zap_cursor_advance(&zc)) {
542 (void) printf("\t\t%s = ", attr.za_name);
543 if (attr.za_num_integers == 0) {
544 (void) printf("\n");
545 continue;
546 }
547 (void) printf(" %llx : [%d:%d:%d]\n",
548 (u_longlong_t)attr.za_first_integer,
549 (int)ATTR_LENGTH(attr.za_first_integer),
550 (int)ATTR_BSWAP(attr.za_first_integer),
551 (int)ATTR_NUM(attr.za_first_integer));
552 }
553 zap_cursor_fini(&zc);
554 }
555
556 /*ARGSUSED*/
557 static void
558 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
559 {
560 zap_cursor_t zc;
561 zap_attribute_t attr;
562 uint16_t *layout_attrs;
563 int i;
564
565 dump_zap_stats(os, object);
566 (void) printf("\n");
567
568 for (zap_cursor_init(&zc, os, object);
569 zap_cursor_retrieve(&zc, &attr) == 0;
570 zap_cursor_advance(&zc)) {
571 (void) printf("\t\t%s = [", attr.za_name);
572 if (attr.za_num_integers == 0) {
573 (void) printf("\n");
574 continue;
575 }
576
577 VERIFY(attr.za_integer_length == 2);
578 layout_attrs = umem_zalloc(attr.za_num_integers *
579 attr.za_integer_length, UMEM_NOFAIL);
580
581 VERIFY(zap_lookup(os, object, attr.za_name,
582 attr.za_integer_length,
583 attr.za_num_integers, layout_attrs) == 0);
584
585 for (i = 0; i != attr.za_num_integers; i++)
586 (void) printf(" %d ", (int)layout_attrs[i]);
587 (void) printf("]\n");
588 umem_free(layout_attrs,
589 attr.za_num_integers * attr.za_integer_length);
590 }
591 zap_cursor_fini(&zc);
592 }
593
594 /*ARGSUSED*/
595 static void
596 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
597 {
598 zap_cursor_t zc;
599 zap_attribute_t attr;
600 const char *typenames[] = {
601 /* 0 */ "not specified",
602 /* 1 */ "FIFO",
603 /* 2 */ "Character Device",
604 /* 3 */ "3 (invalid)",
605 /* 4 */ "Directory",
606 /* 5 */ "5 (invalid)",
607 /* 6 */ "Block Device",
608 /* 7 */ "7 (invalid)",
609 /* 8 */ "Regular File",
610 /* 9 */ "9 (invalid)",
611 /* 10 */ "Symbolic Link",
612 /* 11 */ "11 (invalid)",
613 /* 12 */ "Socket",
614 /* 13 */ "Door",
615 /* 14 */ "Event Port",
616 /* 15 */ "15 (invalid)",
617 };
618
619 dump_zap_stats(os, object);
620 (void) printf("\n");
621
622 for (zap_cursor_init(&zc, os, object);
623 zap_cursor_retrieve(&zc, &attr) == 0;
624 zap_cursor_advance(&zc)) {
625 (void) printf("\t\t%s = %lld (type: %s)\n",
626 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
627 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
628 }
629 zap_cursor_fini(&zc);
630 }
631
632 int
633 get_dtl_refcount(vdev_t *vd)
634 {
635 int refcount = 0;
636
637 if (vd->vdev_ops->vdev_op_leaf) {
638 space_map_t *sm = vd->vdev_dtl_sm;
639
640 if (sm != NULL &&
641 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
642 return (1);
643 return (0);
644 }
645
646 for (int c = 0; c < vd->vdev_children; c++)
647 refcount += get_dtl_refcount(vd->vdev_child[c]);
648 return (refcount);
649 }
650
651 int
652 get_metaslab_refcount(vdev_t *vd)
653 {
654 int refcount = 0;
655
656 if (vd->vdev_top == vd && !vd->vdev_removing) {
657 for (int m = 0; m < vd->vdev_ms_count; m++) {
658 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
659
660 if (sm != NULL &&
661 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
662 refcount++;
663 }
664 }
665 for (int c = 0; c < vd->vdev_children; c++)
666 refcount += get_metaslab_refcount(vd->vdev_child[c]);
667
668 return (refcount);
669 }
670
671 static int
672 verify_spacemap_refcounts(spa_t *spa)
673 {
674 uint64_t expected_refcount = 0;
675 uint64_t actual_refcount;
676
677 (void) feature_get_refcount(spa,
678 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
679 &expected_refcount);
680 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
681 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
682
683 if (expected_refcount != actual_refcount) {
684 (void) printf("space map refcount mismatch: expected %lld != "
685 "actual %lld\n",
686 (longlong_t)expected_refcount,
687 (longlong_t)actual_refcount);
688 return (2);
689 }
690 return (0);
691 }
692
693 static void
694 dump_spacemap(objset_t *os, space_map_t *sm)
695 {
696 uint64_t alloc, offset, entry;
697 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
698 "INVALID", "INVALID", "INVALID", "INVALID" };
699
700 if (sm == NULL)
701 return;
702
703 /*
704 * Print out the freelist entries in both encoded and decoded form.
705 */
706 alloc = 0;
707 for (offset = 0; offset < space_map_length(sm);
708 offset += sizeof (entry)) {
709 uint8_t mapshift = sm->sm_shift;
710
711 VERIFY0(dmu_read(os, space_map_object(sm), offset,
712 sizeof (entry), &entry, DMU_READ_PREFETCH));
713 if (SM_DEBUG_DECODE(entry)) {
714
715 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
716 (u_longlong_t)(offset / sizeof (entry)),
717 ddata[SM_DEBUG_ACTION_DECODE(entry)],
718 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
719 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
720 } else {
721 (void) printf("\t [%6llu] %c range:"
722 " %010llx-%010llx size: %06llx\n",
723 (u_longlong_t)(offset / sizeof (entry)),
724 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
725 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
726 mapshift) + sm->sm_start),
727 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
728 mapshift) + sm->sm_start +
729 (SM_RUN_DECODE(entry) << mapshift)),
730 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
731 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
732 alloc += SM_RUN_DECODE(entry) << mapshift;
733 else
734 alloc -= SM_RUN_DECODE(entry) << mapshift;
735 }
736 }
737 if (alloc != space_map_allocated(sm)) {
738 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
739 "with space map summary (%llu)\n",
740 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
741 }
742 }
743
744 static void
745 dump_metaslab_stats(metaslab_t *msp)
746 {
747 char maxbuf[32];
748 range_tree_t *rt = msp->ms_tree;
749 avl_tree_t *t = &msp->ms_size_tree;
750 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
751
752 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
753
754 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
755 "segments", avl_numnodes(t), "maxsize", maxbuf,
756 "freepct", free_pct);
757 (void) printf("\tIn-memory histogram:\n");
758 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
759 }
760
761 static void
762 dump_metaslab(metaslab_t *msp)
763 {
764 vdev_t *vd = msp->ms_group->mg_vd;
765 spa_t *spa = vd->vdev_spa;
766 space_map_t *sm = msp->ms_sm;
767 char freebuf[32];
768
769 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
770
771 (void) printf(
772 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
773 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
774 (u_longlong_t)space_map_object(sm), freebuf);
775
776 if (dump_opt['m'] > 2 && !dump_opt['L']) {
777 mutex_enter(&msp->ms_lock);
778 metaslab_load_wait(msp);
779 if (!msp->ms_loaded) {
780 VERIFY0(metaslab_load(msp));
781 range_tree_stat_verify(msp->ms_tree);
782 }
783 dump_metaslab_stats(msp);
784 metaslab_unload(msp);
785 mutex_exit(&msp->ms_lock);
786 }
787
788 if (dump_opt['m'] > 1 && sm != NULL &&
789 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
790 /*
791 * The space map histogram represents free space in chunks
792 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
793 */
794 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
795 (u_longlong_t)msp->ms_fragmentation);
796 dump_histogram(sm->sm_phys->smp_histogram,
797 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
798 }
799
800 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
801 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
802
803 mutex_enter(&msp->ms_lock);
804 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
805 mutex_exit(&msp->ms_lock);
806 }
807 }
808
809 static void
810 print_vdev_metaslab_header(vdev_t *vd)
811 {
812 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
813 (u_longlong_t)vd->vdev_id,
814 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
815 "offset", "spacemap", "free");
816 (void) printf("\t%15s %19s %15s %10s\n",
817 "---------------", "-------------------",
818 "---------------", "-------------");
819 }
820
821 static void
822 dump_metaslab_groups(spa_t *spa)
823 {
824 vdev_t *rvd = spa->spa_root_vdev;
825 metaslab_class_t *mc = spa_normal_class(spa);
826 uint64_t fragmentation;
827
828 metaslab_class_histogram_verify(mc);
829
830 for (int c = 0; c < rvd->vdev_children; c++) {
831 vdev_t *tvd = rvd->vdev_child[c];
832 metaslab_group_t *mg = tvd->vdev_mg;
833
834 if (mg->mg_class != mc)
835 continue;
836
837 metaslab_group_histogram_verify(mg);
838 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
839
840 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
841 "fragmentation",
842 (u_longlong_t)tvd->vdev_id,
843 (u_longlong_t)tvd->vdev_ms_count);
844 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
845 (void) printf("%3s\n", "-");
846 } else {
847 (void) printf("%3llu%%\n",
848 (u_longlong_t)mg->mg_fragmentation);
849 }
850 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
851 }
852
853 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
854 fragmentation = metaslab_class_fragmentation(mc);
855 if (fragmentation == ZFS_FRAG_INVALID)
856 (void) printf("\t%3s\n", "-");
857 else
858 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
859 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
860 }
861
862 static void
863 dump_metaslabs(spa_t *spa)
864 {
865 vdev_t *vd, *rvd = spa->spa_root_vdev;
866 uint64_t m, c = 0, children = rvd->vdev_children;
867
868 (void) printf("\nMetaslabs:\n");
869
870 if (!dump_opt['d'] && zopt_objects > 0) {
871 c = zopt_object[0];
872
873 if (c >= children)
874 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
875
876 if (zopt_objects > 1) {
877 vd = rvd->vdev_child[c];
878 print_vdev_metaslab_header(vd);
879
880 for (m = 1; m < zopt_objects; m++) {
881 if (zopt_object[m] < vd->vdev_ms_count)
882 dump_metaslab(
883 vd->vdev_ms[zopt_object[m]]);
884 else
885 (void) fprintf(stderr, "bad metaslab "
886 "number %llu\n",
887 (u_longlong_t)zopt_object[m]);
888 }
889 (void) printf("\n");
890 return;
891 }
892 children = c + 1;
893 }
894 for (; c < children; c++) {
895 vd = rvd->vdev_child[c];
896 print_vdev_metaslab_header(vd);
897
898 for (m = 0; m < vd->vdev_ms_count; m++)
899 dump_metaslab(vd->vdev_ms[m]);
900 (void) printf("\n");
901 }
902 }
903
904 static void
905 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
906 {
907 const ddt_phys_t *ddp = dde->dde_phys;
908 const ddt_key_t *ddk = &dde->dde_key;
909 char *types[4] = { "ditto", "single", "double", "triple" };
910 char blkbuf[BP_SPRINTF_LEN];
911 blkptr_t blk;
912
913 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
914 if (ddp->ddp_phys_birth == 0)
915 continue;
916 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
917 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
918 (void) printf("index %llx refcnt %llu %s %s\n",
919 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
920 types[p], blkbuf);
921 }
922 }
923
924 static void
925 dump_dedup_ratio(const ddt_stat_t *dds)
926 {
927 double rL, rP, rD, D, dedup, compress, copies;
928
929 if (dds->dds_blocks == 0)
930 return;
931
932 rL = (double)dds->dds_ref_lsize;
933 rP = (double)dds->dds_ref_psize;
934 rD = (double)dds->dds_ref_dsize;
935 D = (double)dds->dds_dsize;
936
937 dedup = rD / D;
938 compress = rL / rP;
939 copies = rD / rP;
940
941 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
942 "dedup * compress / copies = %.2f\n\n",
943 dedup, compress, copies, dedup * compress / copies);
944 }
945
946 static void
947 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
948 {
949 char name[DDT_NAMELEN];
950 ddt_entry_t dde;
951 uint64_t walk = 0;
952 dmu_object_info_t doi;
953 uint64_t count, dspace, mspace;
954 int error;
955
956 error = ddt_object_info(ddt, type, class, &doi);
957
958 if (error == ENOENT)
959 return;
960 ASSERT(error == 0);
961
962 if ((count = ddt_object_count(ddt, type, class)) == 0)
963 return;
964
965 dspace = doi.doi_physical_blocks_512 << 9;
966 mspace = doi.doi_fill_count * doi.doi_data_block_size;
967
968 ddt_object_name(ddt, type, class, name);
969
970 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
971 name,
972 (u_longlong_t)count,
973 (u_longlong_t)(dspace / count),
974 (u_longlong_t)(mspace / count));
975
976 if (dump_opt['D'] < 3)
977 return;
978
979 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
980
981 if (dump_opt['D'] < 4)
982 return;
983
984 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
985 return;
986
987 (void) printf("%s contents:\n\n", name);
988
989 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
990 dump_dde(ddt, &dde, walk);
991
992 ASSERT(error == ENOENT);
993
994 (void) printf("\n");
995 }
996
997 static void
998 dump_all_ddts(spa_t *spa)
999 {
1000 ddt_histogram_t ddh_total = { 0 };
1001 ddt_stat_t dds_total = { 0 };
1002
1003 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1004 ddt_t *ddt = spa->spa_ddt[c];
1005 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1006 for (enum ddt_class class = 0; class < DDT_CLASSES;
1007 class++) {
1008 dump_ddt(ddt, type, class);
1009 }
1010 }
1011 }
1012
1013 ddt_get_dedup_stats(spa, &dds_total);
1014
1015 if (dds_total.dds_blocks == 0) {
1016 (void) printf("All DDTs are empty\n");
1017 return;
1018 }
1019
1020 (void) printf("\n");
1021
1022 if (dump_opt['D'] > 1) {
1023 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1024 ddt_get_dedup_histogram(spa, &ddh_total);
1025 zpool_dump_ddt(&dds_total, &ddh_total);
1026 }
1027
1028 dump_dedup_ratio(&dds_total);
1029 }
1030
1031 static void
1032 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1033 {
1034 char *prefix = arg;
1035
1036 (void) printf("%s [%llu,%llu) length %llu\n",
1037 prefix,
1038 (u_longlong_t)start,
1039 (u_longlong_t)(start + size),
1040 (u_longlong_t)(size));
1041 }
1042
1043 static void
1044 dump_dtl(vdev_t *vd, int indent)
1045 {
1046 spa_t *spa = vd->vdev_spa;
1047 boolean_t required;
1048 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
1049 char prefix[256];
1050
1051 spa_vdev_state_enter(spa, SCL_NONE);
1052 required = vdev_dtl_required(vd);
1053 (void) spa_vdev_state_exit(spa, NULL, 0);
1054
1055 if (indent == 0)
1056 (void) printf("\nDirty time logs:\n\n");
1057
1058 (void) printf("\t%*s%s [%s]\n", indent, "",
1059 vd->vdev_path ? vd->vdev_path :
1060 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1061 required ? "DTL-required" : "DTL-expendable");
1062
1063 for (int t = 0; t < DTL_TYPES; t++) {
1064 range_tree_t *rt = vd->vdev_dtl[t];
1065 if (range_tree_space(rt) == 0)
1066 continue;
1067 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1068 indent + 2, "", name[t]);
1069 mutex_enter(rt->rt_lock);
1070 range_tree_walk(rt, dump_dtl_seg, prefix);
1071 mutex_exit(rt->rt_lock);
1072 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1073 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1074 }
1075
1076 for (int c = 0; c < vd->vdev_children; c++)
1077 dump_dtl(vd->vdev_child[c], indent + 4);
1078 }
1079
1080 static void
1081 dump_history(spa_t *spa)
1082 {
1083 nvlist_t **events = NULL;
1084 uint64_t resid, len, off = 0;
1085 uint_t num = 0;
1086 int error;
1087 time_t tsec;
1088 struct tm t;
1089 char tbuf[30];
1090 char internalstr[MAXPATHLEN];
1091
1092 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
1093 do {
1094 len = SPA_MAXBLOCKSIZE;
1095
1096 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1097 (void) fprintf(stderr, "Unable to read history: "
1098 "error %d\n", error);
1099 umem_free(buf, SPA_MAXBLOCKSIZE);
1100 return;
1101 }
1102
1103 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1104 break;
1105
1106 off -= resid;
1107 } while (len != 0);
1108 umem_free(buf, SPA_MAXBLOCKSIZE);
1109
1110 (void) printf("\nHistory:\n");
1111 for (int i = 0; i < num; i++) {
1112 uint64_t time, txg, ievent;
1113 char *cmd, *intstr;
1114 boolean_t printed = B_FALSE;
1115
1116 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1117 &time) != 0)
1118 goto next;
1119 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1120 &cmd) != 0) {
1121 if (nvlist_lookup_uint64(events[i],
1122 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1123 goto next;
1124 verify(nvlist_lookup_uint64(events[i],
1125 ZPOOL_HIST_TXG, &txg) == 0);
1126 verify(nvlist_lookup_string(events[i],
1127 ZPOOL_HIST_INT_STR, &intstr) == 0);
1128 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1129 goto next;
1130
1131 (void) snprintf(internalstr,
1132 sizeof (internalstr),
1133 "[internal %s txg:%lld] %s",
1134 zfs_history_event_names[ievent], txg,
1135 intstr);
1136 cmd = internalstr;
1137 }
1138 tsec = time;
1139 (void) localtime_r(&tsec, &t);
1140 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1141 (void) printf("%s %s\n", tbuf, cmd);
1142 printed = B_TRUE;
1143
1144 next:
1145 if (dump_opt['h'] > 1) {
1146 if (!printed)
1147 (void) printf("unrecognized record:\n");
1148 dump_nvlist(events[i], 2);
1149 }
1150 }
1151 }
1152
1153 /*ARGSUSED*/
1154 static void
1155 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1156 {
1157 }
1158
1159 static uint64_t
1160 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1161 const zbookmark_phys_t *zb)
1162 {
1163 if (dnp == NULL) {
1164 ASSERT(zb->zb_level < 0);
1165 if (zb->zb_object == 0)
1166 return (zb->zb_blkid);
1167 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1168 }
1169
1170 ASSERT(zb->zb_level >= 0);
1171
1172 return ((zb->zb_blkid <<
1173 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1174 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1175 }
1176
1177 static void
1178 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1179 {
1180 const dva_t *dva = bp->blk_dva;
1181 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1182
1183 if (dump_opt['b'] >= 6) {
1184 snprintf_blkptr(blkbuf, buflen, bp);
1185 return;
1186 }
1187
1188 if (BP_IS_EMBEDDED(bp)) {
1189 (void) sprintf(blkbuf,
1190 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1191 (int)BPE_GET_ETYPE(bp),
1192 (u_longlong_t)BPE_GET_LSIZE(bp),
1193 (u_longlong_t)BPE_GET_PSIZE(bp),
1194 (u_longlong_t)bp->blk_birth);
1195 return;
1196 }
1197
1198 blkbuf[0] = '\0';
1199 for (int i = 0; i < ndvas; i++)
1200 (void) snprintf(blkbuf + strlen(blkbuf),
1201 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1202 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1203 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1204 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1205
1206 if (BP_IS_HOLE(bp)) {
1207 (void) snprintf(blkbuf + strlen(blkbuf),
1208 buflen - strlen(blkbuf),
1209 "%llxL B=%llu",
1210 (u_longlong_t)BP_GET_LSIZE(bp),
1211 (u_longlong_t)bp->blk_birth);
1212 } else {
1213 (void) snprintf(blkbuf + strlen(blkbuf),
1214 buflen - strlen(blkbuf),
1215 "%llxL/%llxP F=%llu B=%llu/%llu",
1216 (u_longlong_t)BP_GET_LSIZE(bp),
1217 (u_longlong_t)BP_GET_PSIZE(bp),
1218 (u_longlong_t)BP_GET_FILL(bp),
1219 (u_longlong_t)bp->blk_birth,
1220 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1221 }
1222 }
1223
1224 static void
1225 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1226 const dnode_phys_t *dnp)
1227 {
1228 char blkbuf[BP_SPRINTF_LEN];
1229 int l;
1230
1231 if (!BP_IS_EMBEDDED(bp)) {
1232 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1233 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1234 }
1235
1236 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1237
1238 ASSERT(zb->zb_level >= 0);
1239
1240 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1241 if (l == zb->zb_level) {
1242 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1243 } else {
1244 (void) printf(" ");
1245 }
1246 }
1247
1248 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1249 (void) printf("%s\n", blkbuf);
1250 }
1251
1252 static int
1253 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1254 blkptr_t *bp, const zbookmark_phys_t *zb)
1255 {
1256 int err = 0;
1257
1258 if (bp->blk_birth == 0)
1259 return (0);
1260
1261 print_indirect(bp, zb, dnp);
1262
1263 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1264 arc_flags_t flags = ARC_FLAG_WAIT;
1265 int i;
1266 blkptr_t *cbp;
1267 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1268 arc_buf_t *buf;
1269 uint64_t fill = 0;
1270
1271 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1272 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1273 if (err)
1274 return (err);
1275 ASSERT(buf->b_data);
1276
1277 /* recursively visit blocks below this */
1278 cbp = buf->b_data;
1279 for (i = 0; i < epb; i++, cbp++) {
1280 zbookmark_phys_t czb;
1281
1282 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1283 zb->zb_level - 1,
1284 zb->zb_blkid * epb + i);
1285 err = visit_indirect(spa, dnp, cbp, &czb);
1286 if (err)
1287 break;
1288 fill += BP_GET_FILL(cbp);
1289 }
1290 if (!err)
1291 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1292 arc_buf_destroy(buf, &buf);
1293 }
1294
1295 return (err);
1296 }
1297
1298 /*ARGSUSED*/
1299 static void
1300 dump_indirect(dnode_t *dn)
1301 {
1302 dnode_phys_t *dnp = dn->dn_phys;
1303 int j;
1304 zbookmark_phys_t czb;
1305
1306 (void) printf("Indirect blocks:\n");
1307
1308 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1309 dn->dn_object, dnp->dn_nlevels - 1, 0);
1310 for (j = 0; j < dnp->dn_nblkptr; j++) {
1311 czb.zb_blkid = j;
1312 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1313 &dnp->dn_blkptr[j], &czb);
1314 }
1315
1316 (void) printf("\n");
1317 }
1318
1319 /*ARGSUSED*/
1320 static void
1321 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1322 {
1323 dsl_dir_phys_t *dd = data;
1324 time_t crtime;
1325 char nice[32];
1326
1327 if (dd == NULL)
1328 return;
1329
1330 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1331
1332 crtime = dd->dd_creation_time;
1333 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1334 (void) printf("\t\thead_dataset_obj = %llu\n",
1335 (u_longlong_t)dd->dd_head_dataset_obj);
1336 (void) printf("\t\tparent_dir_obj = %llu\n",
1337 (u_longlong_t)dd->dd_parent_obj);
1338 (void) printf("\t\torigin_obj = %llu\n",
1339 (u_longlong_t)dd->dd_origin_obj);
1340 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1341 (u_longlong_t)dd->dd_child_dir_zapobj);
1342 zdb_nicenum(dd->dd_used_bytes, nice);
1343 (void) printf("\t\tused_bytes = %s\n", nice);
1344 zdb_nicenum(dd->dd_compressed_bytes, nice);
1345 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1346 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1347 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1348 zdb_nicenum(dd->dd_quota, nice);
1349 (void) printf("\t\tquota = %s\n", nice);
1350 zdb_nicenum(dd->dd_reserved, nice);
1351 (void) printf("\t\treserved = %s\n", nice);
1352 (void) printf("\t\tprops_zapobj = %llu\n",
1353 (u_longlong_t)dd->dd_props_zapobj);
1354 (void) printf("\t\tdeleg_zapobj = %llu\n",
1355 (u_longlong_t)dd->dd_deleg_zapobj);
1356 (void) printf("\t\tflags = %llx\n",
1357 (u_longlong_t)dd->dd_flags);
1358
1359 #define DO(which) \
1360 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1361 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1362 DO(HEAD);
1363 DO(SNAP);
1364 DO(CHILD);
1365 DO(CHILD_RSRV);
1366 DO(REFRSRV);
1367 #undef DO
1368 }
1369
1370 /*ARGSUSED*/
1371 static void
1372 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1373 {
1374 dsl_dataset_phys_t *ds = data;
1375 time_t crtime;
1376 char used[32], compressed[32], uncompressed[32], unique[32];
1377 char blkbuf[BP_SPRINTF_LEN];
1378
1379 if (ds == NULL)
1380 return;
1381
1382 ASSERT(size == sizeof (*ds));
1383 crtime = ds->ds_creation_time;
1384 zdb_nicenum(ds->ds_referenced_bytes, used);
1385 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1386 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1387 zdb_nicenum(ds->ds_unique_bytes, unique);
1388 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1389
1390 (void) printf("\t\tdir_obj = %llu\n",
1391 (u_longlong_t)ds->ds_dir_obj);
1392 (void) printf("\t\tprev_snap_obj = %llu\n",
1393 (u_longlong_t)ds->ds_prev_snap_obj);
1394 (void) printf("\t\tprev_snap_txg = %llu\n",
1395 (u_longlong_t)ds->ds_prev_snap_txg);
1396 (void) printf("\t\tnext_snap_obj = %llu\n",
1397 (u_longlong_t)ds->ds_next_snap_obj);
1398 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1399 (u_longlong_t)ds->ds_snapnames_zapobj);
1400 (void) printf("\t\tnum_children = %llu\n",
1401 (u_longlong_t)ds->ds_num_children);
1402 (void) printf("\t\tuserrefs_obj = %llu\n",
1403 (u_longlong_t)ds->ds_userrefs_obj);
1404 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1405 (void) printf("\t\tcreation_txg = %llu\n",
1406 (u_longlong_t)ds->ds_creation_txg);
1407 (void) printf("\t\tdeadlist_obj = %llu\n",
1408 (u_longlong_t)ds->ds_deadlist_obj);
1409 (void) printf("\t\tused_bytes = %s\n", used);
1410 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1411 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1412 (void) printf("\t\tunique = %s\n", unique);
1413 (void) printf("\t\tfsid_guid = %llu\n",
1414 (u_longlong_t)ds->ds_fsid_guid);
1415 (void) printf("\t\tguid = %llu\n",
1416 (u_longlong_t)ds->ds_guid);
1417 (void) printf("\t\tflags = %llx\n",
1418 (u_longlong_t)ds->ds_flags);
1419 (void) printf("\t\tnext_clones_obj = %llu\n",
1420 (u_longlong_t)ds->ds_next_clones_obj);
1421 (void) printf("\t\tprops_obj = %llu\n",
1422 (u_longlong_t)ds->ds_props_obj);
1423 (void) printf("\t\tbp = %s\n", blkbuf);
1424 }
1425
1426 /* ARGSUSED */
1427 static int
1428 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1429 {
1430 char blkbuf[BP_SPRINTF_LEN];
1431
1432 if (bp->blk_birth != 0) {
1433 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1434 (void) printf("\t%s\n", blkbuf);
1435 }
1436 return (0);
1437 }
1438
1439 static void
1440 dump_bptree(objset_t *os, uint64_t obj, char *name)
1441 {
1442 char bytes[32];
1443 bptree_phys_t *bt;
1444 dmu_buf_t *db;
1445
1446 if (dump_opt['d'] < 3)
1447 return;
1448
1449 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1450 bt = db->db_data;
1451 zdb_nicenum(bt->bt_bytes, bytes);
1452 (void) printf("\n %s: %llu datasets, %s\n",
1453 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1454 dmu_buf_rele(db, FTAG);
1455
1456 if (dump_opt['d'] < 5)
1457 return;
1458
1459 (void) printf("\n");
1460
1461 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1462 }
1463
1464 /* ARGSUSED */
1465 static int
1466 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1467 {
1468 char blkbuf[BP_SPRINTF_LEN];
1469
1470 ASSERT(bp->blk_birth != 0);
1471 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1472 (void) printf("\t%s\n", blkbuf);
1473 return (0);
1474 }
1475
1476 static void
1477 dump_full_bpobj(bpobj_t *bpo, char *name, int indent)
1478 {
1479 char bytes[32];
1480 char comp[32];
1481 char uncomp[32];
1482
1483 if (dump_opt['d'] < 3)
1484 return;
1485
1486 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1487 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1488 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1489 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1490 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1491 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1492 indent * 8, name,
1493 (u_longlong_t)bpo->bpo_object,
1494 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1495 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1496 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1497 bytes, comp, uncomp);
1498
1499 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1500 uint64_t subobj;
1501 bpobj_t subbpo;
1502 int error;
1503 VERIFY0(dmu_read(bpo->bpo_os,
1504 bpo->bpo_phys->bpo_subobjs,
1505 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1506 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1507 if (error != 0) {
1508 (void) printf("ERROR %u while trying to open "
1509 "subobj id %llu\n",
1510 error, (u_longlong_t)subobj);
1511 continue;
1512 }
1513 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1514 bpobj_close(&subbpo);
1515 }
1516 } else {
1517 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1518 indent * 8, name,
1519 (u_longlong_t)bpo->bpo_object,
1520 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1521 bytes);
1522 }
1523
1524 if (dump_opt['d'] < 5)
1525 return;
1526
1527
1528 if (indent == 0) {
1529 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1530 (void) printf("\n");
1531 }
1532 }
1533
1534 static void
1535 dump_deadlist(dsl_deadlist_t *dl)
1536 {
1537 dsl_deadlist_entry_t *dle;
1538 uint64_t unused;
1539 char bytes[32];
1540 char comp[32];
1541 char uncomp[32];
1542
1543 if (dump_opt['d'] < 3)
1544 return;
1545
1546 if (dl->dl_oldfmt) {
1547 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1548 return;
1549 }
1550
1551 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1552 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1553 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1554 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1555 bytes, comp, uncomp);
1556
1557 if (dump_opt['d'] < 4)
1558 return;
1559
1560 (void) printf("\n");
1561
1562 /* force the tree to be loaded */
1563 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1564
1565 for (dle = avl_first(&dl->dl_tree); dle;
1566 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1567 if (dump_opt['d'] >= 5) {
1568 char buf[128];
1569 (void) snprintf(buf, sizeof (buf),
1570 "mintxg %llu -> obj %llu",
1571 (longlong_t)dle->dle_mintxg,
1572 (longlong_t)dle->dle_bpobj.bpo_object);
1573
1574 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1575 } else {
1576 (void) printf("mintxg %llu -> obj %llu\n",
1577 (longlong_t)dle->dle_mintxg,
1578 (longlong_t)dle->dle_bpobj.bpo_object);
1579
1580 }
1581 }
1582 }
1583
1584 static avl_tree_t idx_tree;
1585 static avl_tree_t domain_tree;
1586 static boolean_t fuid_table_loaded;
1587 static objset_t *sa_os = NULL;
1588 static sa_attr_type_t *sa_attr_table = NULL;
1589
1590 static int
1591 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1592 {
1593 int err;
1594 uint64_t sa_attrs = 0;
1595 uint64_t version = 0;
1596
1597 VERIFY3P(sa_os, ==, NULL);
1598 err = dmu_objset_own(path, type, B_TRUE, tag, osp);
1599 if (err != 0) {
1600 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1601 strerror(err));
1602 return (err);
1603 }
1604
1605 if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
1606 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1607 8, 1, &version);
1608 if (version >= ZPL_VERSION_SA) {
1609 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1610 8, 1, &sa_attrs);
1611 }
1612 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1613 &sa_attr_table);
1614 if (err != 0) {
1615 (void) fprintf(stderr, "sa_setup failed: %s\n",
1616 strerror(err));
1617 dmu_objset_disown(*osp, tag);
1618 *osp = NULL;
1619 }
1620 }
1621 sa_os = *osp;
1622
1623 return (0);
1624 }
1625
1626 static void
1627 close_objset(objset_t *os, void *tag)
1628 {
1629 VERIFY3P(os, ==, sa_os);
1630 if (os->os_sa != NULL)
1631 sa_tear_down(os);
1632 dmu_objset_disown(os, tag);
1633 sa_attr_table = NULL;
1634 sa_os = NULL;
1635 }
1636
1637 static void
1638 fuid_table_destroy()
1639 {
1640 if (fuid_table_loaded) {
1641 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1642 fuid_table_loaded = B_FALSE;
1643 }
1644 }
1645
1646 /*
1647 * print uid or gid information.
1648 * For normal POSIX id just the id is printed in decimal format.
1649 * For CIFS files with FUID the fuid is printed in hex followed by
1650 * the domain-rid string.
1651 */
1652 static void
1653 print_idstr(uint64_t id, const char *id_type)
1654 {
1655 if (FUID_INDEX(id)) {
1656 char *domain;
1657
1658 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1659 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1660 (u_longlong_t)id, domain, (int)FUID_RID(id));
1661 } else {
1662 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1663 }
1664
1665 }
1666
1667 static void
1668 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1669 {
1670 uint32_t uid_idx, gid_idx;
1671
1672 uid_idx = FUID_INDEX(uid);
1673 gid_idx = FUID_INDEX(gid);
1674
1675 /* Load domain table, if not already loaded */
1676 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1677 uint64_t fuid_obj;
1678
1679 /* first find the fuid object. It lives in the master node */
1680 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1681 8, 1, &fuid_obj) == 0);
1682 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1683 (void) zfs_fuid_table_load(os, fuid_obj,
1684 &idx_tree, &domain_tree);
1685 fuid_table_loaded = B_TRUE;
1686 }
1687
1688 print_idstr(uid, "uid");
1689 print_idstr(gid, "gid");
1690 }
1691
1692 /*ARGSUSED*/
1693 static void
1694 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1695 {
1696 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1697 sa_handle_t *hdl;
1698 uint64_t xattr, rdev, gen;
1699 uint64_t uid, gid, mode, fsize, parent, links;
1700 uint64_t pflags;
1701 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1702 time_t z_crtime, z_atime, z_mtime, z_ctime;
1703 sa_bulk_attr_t bulk[12];
1704 int idx = 0;
1705 int error;
1706
1707 VERIFY3P(os, ==, sa_os);
1708 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1709 (void) printf("Failed to get handle for SA znode\n");
1710 return;
1711 }
1712
1713 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1714 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1715 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1716 &links, 8);
1717 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1718 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1719 &mode, 8);
1720 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1721 NULL, &parent, 8);
1722 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1723 &fsize, 8);
1724 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1725 acctm, 16);
1726 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1727 modtm, 16);
1728 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1729 crtm, 16);
1730 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1731 chgtm, 16);
1732 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1733 &pflags, 8);
1734
1735 if (sa_bulk_lookup(hdl, bulk, idx)) {
1736 (void) sa_handle_destroy(hdl);
1737 return;
1738 }
1739
1740 z_crtime = (time_t)crtm[0];
1741 z_atime = (time_t)acctm[0];
1742 z_mtime = (time_t)modtm[0];
1743 z_ctime = (time_t)chgtm[0];
1744
1745 if (dump_opt['d'] > 4) {
1746 error = zfs_obj_to_path(os, object, path, sizeof (path));
1747 if (error != 0) {
1748 (void) snprintf(path, sizeof (path),
1749 "\?\?\?<object#%llu>", (u_longlong_t)object);
1750 }
1751 (void) printf("\tpath %s\n", path);
1752 }
1753 dump_uidgid(os, uid, gid);
1754 (void) printf("\tatime %s", ctime(&z_atime));
1755 (void) printf("\tmtime %s", ctime(&z_mtime));
1756 (void) printf("\tctime %s", ctime(&z_ctime));
1757 (void) printf("\tcrtime %s", ctime(&z_crtime));
1758 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1759 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1760 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1761 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1762 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1763 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1764 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1765 sizeof (uint64_t)) == 0)
1766 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1767 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1768 sizeof (uint64_t)) == 0)
1769 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1770 sa_handle_destroy(hdl);
1771 }
1772
1773 /*ARGSUSED*/
1774 static void
1775 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1776 {
1777 }
1778
1779 /*ARGSUSED*/
1780 static void
1781 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1782 {
1783 }
1784
1785 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1786 dump_none, /* unallocated */
1787 dump_zap, /* object directory */
1788 dump_uint64, /* object array */
1789 dump_none, /* packed nvlist */
1790 dump_packed_nvlist, /* packed nvlist size */
1791 dump_none, /* bpobj */
1792 dump_bpobj, /* bpobj header */
1793 dump_none, /* SPA space map header */
1794 dump_none, /* SPA space map */
1795 dump_none, /* ZIL intent log */
1796 dump_dnode, /* DMU dnode */
1797 dump_dmu_objset, /* DMU objset */
1798 dump_dsl_dir, /* DSL directory */
1799 dump_zap, /* DSL directory child map */
1800 dump_zap, /* DSL dataset snap map */
1801 dump_zap, /* DSL props */
1802 dump_dsl_dataset, /* DSL dataset */
1803 dump_znode, /* ZFS znode */
1804 dump_acl, /* ZFS V0 ACL */
1805 dump_uint8, /* ZFS plain file */
1806 dump_zpldir, /* ZFS directory */
1807 dump_zap, /* ZFS master node */
1808 dump_zap, /* ZFS delete queue */
1809 dump_uint8, /* zvol object */
1810 dump_zap, /* zvol prop */
1811 dump_uint8, /* other uint8[] */
1812 dump_uint64, /* other uint64[] */
1813 dump_zap, /* other ZAP */
1814 dump_zap, /* persistent error log */
1815 dump_uint8, /* SPA history */
1816 dump_history_offsets, /* SPA history offsets */
1817 dump_zap, /* Pool properties */
1818 dump_zap, /* DSL permissions */
1819 dump_acl, /* ZFS ACL */
1820 dump_uint8, /* ZFS SYSACL */
1821 dump_none, /* FUID nvlist */
1822 dump_packed_nvlist, /* FUID nvlist size */
1823 dump_zap, /* DSL dataset next clones */
1824 dump_zap, /* DSL scrub queue */
1825 dump_zap, /* ZFS user/group used */
1826 dump_zap, /* ZFS user/group quota */
1827 dump_zap, /* snapshot refcount tags */
1828 dump_ddt_zap, /* DDT ZAP object */
1829 dump_zap, /* DDT statistics */
1830 dump_znode, /* SA object */
1831 dump_zap, /* SA Master Node */
1832 dump_sa_attrs, /* SA attribute registration */
1833 dump_sa_layouts, /* SA attribute layouts */
1834 dump_zap, /* DSL scrub translations */
1835 dump_none, /* fake dedup BP */
1836 dump_zap, /* deadlist */
1837 dump_none, /* deadlist hdr */
1838 dump_zap, /* dsl clones */
1839 dump_bpobj_subobjs, /* bpobj subobjs */
1840 dump_unknown, /* Unknown type, must be last */
1841 };
1842
1843 static void
1844 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1845 {
1846 dmu_buf_t *db = NULL;
1847 dmu_object_info_t doi;
1848 dnode_t *dn;
1849 void *bonus = NULL;
1850 size_t bsize = 0;
1851 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1852 char bonus_size[32];
1853 char aux[50];
1854 int error;
1855
1856 if (*print_header) {
1857 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1858 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1859 "%full", "type");
1860 *print_header = 0;
1861 }
1862
1863 if (object == 0) {
1864 dn = DMU_META_DNODE(os);
1865 } else {
1866 error = dmu_bonus_hold(os, object, FTAG, &db);
1867 if (error)
1868 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1869 object, error);
1870 bonus = db->db_data;
1871 bsize = db->db_size;
1872 dn = DB_DNODE((dmu_buf_impl_t *)db);
1873 }
1874 dmu_object_info_from_dnode(dn, &doi);
1875
1876 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1877 zdb_nicenum(doi.doi_data_block_size, dblk);
1878 zdb_nicenum(doi.doi_max_offset, lsize);
1879 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1880 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1881 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1882 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1883 doi.doi_max_offset);
1884
1885 aux[0] = '\0';
1886
1887 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1888 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1889 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1890 }
1891
1892 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1893 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1894 ZDB_COMPRESS_NAME(doi.doi_compress));
1895 }
1896
1897 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1898 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1899 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1900
1901 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1902 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1903 "", "", "", "", "", bonus_size, "bonus",
1904 ZDB_OT_NAME(doi.doi_bonus_type));
1905 }
1906
1907 if (verbosity >= 4) {
1908 (void) printf("\tdnode flags: %s%s%s\n",
1909 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1910 "USED_BYTES " : "",
1911 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1912 "USERUSED_ACCOUNTED " : "",
1913 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1914 "SPILL_BLKPTR" : "");
1915 (void) printf("\tdnode maxblkid: %llu\n",
1916 (longlong_t)dn->dn_phys->dn_maxblkid);
1917
1918 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1919 bonus, bsize);
1920 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1921 *print_header = 1;
1922 }
1923
1924 if (verbosity >= 5)
1925 dump_indirect(dn);
1926
1927 if (verbosity >= 5) {
1928 /*
1929 * Report the list of segments that comprise the object.
1930 */
1931 uint64_t start = 0;
1932 uint64_t end;
1933 uint64_t blkfill = 1;
1934 int minlvl = 1;
1935
1936 if (dn->dn_type == DMU_OT_DNODE) {
1937 minlvl = 0;
1938 blkfill = DNODES_PER_BLOCK;
1939 }
1940
1941 for (;;) {
1942 char segsize[32];
1943 error = dnode_next_offset(dn,
1944 0, &start, minlvl, blkfill, 0);
1945 if (error)
1946 break;
1947 end = start;
1948 error = dnode_next_offset(dn,
1949 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1950 zdb_nicenum(end - start, segsize);
1951 (void) printf("\t\tsegment [%016llx, %016llx)"
1952 " size %5s\n", (u_longlong_t)start,
1953 (u_longlong_t)end, segsize);
1954 if (error)
1955 break;
1956 start = end;
1957 }
1958 }
1959
1960 if (db != NULL)
1961 dmu_buf_rele(db, FTAG);
1962 }
1963
1964 static char *objset_types[DMU_OST_NUMTYPES] = {
1965 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1966
1967 static void
1968 dump_dir(objset_t *os)
1969 {
1970 dmu_objset_stats_t dds;
1971 uint64_t object, object_count;
1972 uint64_t refdbytes, usedobjs, scratch;
1973 char numbuf[32];
1974 char blkbuf[BP_SPRINTF_LEN + 20];
1975 char osname[ZFS_MAX_DATASET_NAME_LEN];
1976 char *type = "UNKNOWN";
1977 int verbosity = dump_opt['d'];
1978 int print_header = 1;
1979 int i, error;
1980
1981 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1982 dmu_objset_fast_stat(os, &dds);
1983 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1984
1985 if (dds.dds_type < DMU_OST_NUMTYPES)
1986 type = objset_types[dds.dds_type];
1987
1988 if (dds.dds_type == DMU_OST_META) {
1989 dds.dds_creation_txg = TXG_INITIAL;
1990 usedobjs = BP_GET_FILL(os->os_rootbp);
1991 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
1992 dd_used_bytes;
1993 } else {
1994 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1995 }
1996
1997 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
1998
1999 zdb_nicenum(refdbytes, numbuf);
2000
2001 if (verbosity >= 4) {
2002 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
2003 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2004 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2005 } else {
2006 blkbuf[0] = '\0';
2007 }
2008
2009 dmu_objset_name(os, osname);
2010
2011 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2012 "%s, %llu objects%s\n",
2013 osname, type, (u_longlong_t)dmu_objset_id(os),
2014 (u_longlong_t)dds.dds_creation_txg,
2015 numbuf, (u_longlong_t)usedobjs, blkbuf);
2016
2017 if (zopt_objects != 0) {
2018 for (i = 0; i < zopt_objects; i++)
2019 dump_object(os, zopt_object[i], verbosity,
2020 &print_header);
2021 (void) printf("\n");
2022 return;
2023 }
2024
2025 if (dump_opt['i'] != 0 || verbosity >= 2)
2026 dump_intent_log(dmu_objset_zil(os));
2027
2028 if (dmu_objset_ds(os) != NULL)
2029 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
2030
2031 if (verbosity < 2)
2032 return;
2033
2034 if (BP_IS_HOLE(os->os_rootbp))
2035 return;
2036
2037 dump_object(os, 0, verbosity, &print_header);
2038 object_count = 0;
2039 if (DMU_USERUSED_DNODE(os) != NULL &&
2040 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2041 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2042 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2043 }
2044
2045 object = 0;
2046 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2047 dump_object(os, object, verbosity, &print_header);
2048 object_count++;
2049 }
2050
2051 ASSERT3U(object_count, ==, usedobjs);
2052
2053 (void) printf("\n");
2054
2055 if (error != ESRCH) {
2056 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2057 abort();
2058 }
2059 }
2060
2061 static void
2062 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2063 {
2064 time_t timestamp = ub->ub_timestamp;
2065
2066 (void) printf(header ? header : "");
2067 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2068 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2069 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2070 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2071 (void) printf("\ttimestamp = %llu UTC = %s",
2072 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2073 if (dump_opt['u'] >= 3) {
2074 char blkbuf[BP_SPRINTF_LEN];
2075 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2076 (void) printf("\trootbp = %s\n", blkbuf);
2077 }
2078 (void) printf(footer ? footer : "");
2079 }
2080
2081 static void
2082 dump_config(spa_t *spa)
2083 {
2084 dmu_buf_t *db;
2085 size_t nvsize = 0;
2086 int error = 0;
2087
2088
2089 error = dmu_bonus_hold(spa->spa_meta_objset,
2090 spa->spa_config_object, FTAG, &db);
2091
2092 if (error == 0) {
2093 nvsize = *(uint64_t *)db->db_data;
2094 dmu_buf_rele(db, FTAG);
2095
2096 (void) printf("\nMOS Configuration:\n");
2097 dump_packed_nvlist(spa->spa_meta_objset,
2098 spa->spa_config_object, (void *)&nvsize, 1);
2099 } else {
2100 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2101 (u_longlong_t)spa->spa_config_object, error);
2102 }
2103 }
2104
2105 static void
2106 dump_cachefile(const char *cachefile)
2107 {
2108 int fd;
2109 struct stat64 statbuf;
2110 char *buf;
2111 nvlist_t *config;
2112
2113 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2114 (void) printf("cannot open '%s': %s\n", cachefile,
2115 strerror(errno));
2116 exit(1);
2117 }
2118
2119 if (fstat64(fd, &statbuf) != 0) {
2120 (void) printf("failed to stat '%s': %s\n", cachefile,
2121 strerror(errno));
2122 exit(1);
2123 }
2124
2125 if ((buf = malloc(statbuf.st_size)) == NULL) {
2126 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2127 (u_longlong_t)statbuf.st_size);
2128 exit(1);
2129 }
2130
2131 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2132 (void) fprintf(stderr, "failed to read %llu bytes\n",
2133 (u_longlong_t)statbuf.st_size);
2134 exit(1);
2135 }
2136
2137 (void) close(fd);
2138
2139 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2140 (void) fprintf(stderr, "failed to unpack nvlist\n");
2141 exit(1);
2142 }
2143
2144 free(buf);
2145
2146 dump_nvlist(config, 0);
2147
2148 nvlist_free(config);
2149 }
2150
2151 #define ZDB_MAX_UB_HEADER_SIZE 32
2152
2153 static void
2154 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2155 {
2156 vdev_t vd;
2157 vdev_t *vdp = &vd;
2158 char header[ZDB_MAX_UB_HEADER_SIZE];
2159
2160 vd.vdev_ashift = ashift;
2161 vdp->vdev_top = vdp;
2162
2163 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2164 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2165 uberblock_t *ub = (void *)((char *)lbl + uoff);
2166
2167 if (uberblock_verify(ub))
2168 continue;
2169 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2170 "Uberblock[%d]\n", i);
2171 dump_uberblock(ub, header, "");
2172 }
2173 }
2174
2175 static char curpath[PATH_MAX];
2176
2177 /*
2178 * Iterate through the path components, recursively passing
2179 * current one's obj and remaining path until we find the obj
2180 * for the last one.
2181 */
2182 static int
2183 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2184 {
2185 int err;
2186 int header = 1;
2187 uint64_t child_obj;
2188 char *s;
2189 dmu_buf_t *db;
2190 dmu_object_info_t doi;
2191
2192 if ((s = strchr(name, '/')) != NULL)
2193 *s = '\0';
2194 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2195
2196 (void) strlcat(curpath, name, sizeof (curpath));
2197
2198 if (err != 0) {
2199 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2200 curpath, strerror(err));
2201 return (err);
2202 }
2203
2204 child_obj = ZFS_DIRENT_OBJ(child_obj);
2205 err = sa_buf_hold(os, child_obj, FTAG, &db);
2206 if (err != 0) {
2207 (void) fprintf(stderr,
2208 "failed to get SA dbuf for obj %llu: %s\n",
2209 (u_longlong_t)child_obj, strerror(err));
2210 return (EINVAL);
2211 }
2212 dmu_object_info_from_db(db, &doi);
2213 sa_buf_rele(db, FTAG);
2214
2215 if (doi.doi_bonus_type != DMU_OT_SA &&
2216 doi.doi_bonus_type != DMU_OT_ZNODE) {
2217 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2218 doi.doi_bonus_type, (u_longlong_t)child_obj);
2219 return (EINVAL);
2220 }
2221
2222 if (dump_opt['v'] > 6) {
2223 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2224 (u_longlong_t)child_obj, curpath, doi.doi_type,
2225 doi.doi_bonus_type);
2226 }
2227
2228 (void) strlcat(curpath, "/", sizeof (curpath));
2229
2230 switch (doi.doi_type) {
2231 case DMU_OT_DIRECTORY_CONTENTS:
2232 if (s != NULL && *(s + 1) != '\0')
2233 return (dump_path_impl(os, child_obj, s + 1));
2234 /*FALLTHROUGH*/
2235 case DMU_OT_PLAIN_FILE_CONTENTS:
2236 dump_object(os, child_obj, dump_opt['v'], &header);
2237 return (0);
2238 default:
2239 (void) fprintf(stderr, "object %llu has non-file/directory "
2240 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2241 break;
2242 }
2243
2244 return (EINVAL);
2245 }
2246
2247 /*
2248 * Dump the blocks for the object specified by path inside the dataset.
2249 */
2250 static int
2251 dump_path(char *ds, char *path)
2252 {
2253 int err;
2254 objset_t *os;
2255 uint64_t root_obj;
2256
2257 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2258 if (err != 0)
2259 return (err);
2260
2261 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2262 if (err != 0) {
2263 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2264 strerror(err));
2265 dmu_objset_disown(os, FTAG);
2266 return (EINVAL);
2267 }
2268
2269 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2270
2271 err = dump_path_impl(os, root_obj, path);
2272
2273 close_objset(os, FTAG);
2274 return (err);
2275 }
2276
2277 static int
2278 dump_label(const char *dev)
2279 {
2280 int fd;
2281 vdev_label_t label;
2282 char path[MAXPATHLEN];
2283 char *buf = label.vl_vdev_phys.vp_nvlist;
2284 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2285 struct stat64 statbuf;
2286 uint64_t psize, ashift;
2287 boolean_t label_found = B_FALSE;
2288
2289 (void) strlcpy(path, dev, sizeof (path));
2290 if (dev[0] == '/') {
2291 if (strncmp(dev, ZFS_DISK_ROOTD,
2292 strlen(ZFS_DISK_ROOTD)) == 0) {
2293 (void) snprintf(path, sizeof (path), "%s%s",
2294 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD));
2295 }
2296 } else if (stat64(path, &statbuf) != 0) {
2297 char *s;
2298
2299 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD,
2300 dev);
2301 if (((s = strrchr(dev, 's')) == NULL &&
2302 (s = strchr(dev, 'p')) == NULL) ||
2303 !isdigit(*(s + 1)))
2304 (void) strlcat(path, "s0", sizeof (path));
2305 }
2306
2307 if ((fd = open64(path, O_RDONLY)) < 0) {
2308 (void) fprintf(stderr, "cannot open '%s': %s\n", path,
2309 strerror(errno));
2310 exit(1);
2311 }
2312
2313 if (fstat64(fd, &statbuf) != 0) {
2314 (void) fprintf(stderr, "failed to stat '%s': %s\n", path,
2315 strerror(errno));
2316 (void) close(fd);
2317 exit(1);
2318 }
2319
2320 if (S_ISBLK(statbuf.st_mode)) {
2321 (void) fprintf(stderr,
2322 "cannot use '%s': character device required\n", path);
2323 (void) close(fd);
2324 exit(1);
2325 }
2326
2327 psize = statbuf.st_size;
2328 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2329
2330 for (int l = 0; l < VDEV_LABELS; l++) {
2331 nvlist_t *config = NULL;
2332
2333 if (!dump_opt['q']) {
2334 (void) printf("------------------------------------\n");
2335 (void) printf("LABEL %d\n", l);
2336 (void) printf("------------------------------------\n");
2337 }
2338
2339 if (pread64(fd, &label, sizeof (label),
2340 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2341 if (!dump_opt['q'])
2342 (void) printf("failed to read label %d\n", l);
2343 continue;
2344 }
2345
2346 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2347 if (!dump_opt['q'])
2348 (void) printf("failed to unpack label %d\n", l);
2349 ashift = SPA_MINBLOCKSHIFT;
2350 } else {
2351 nvlist_t *vdev_tree = NULL;
2352
2353 if (!dump_opt['q'])
2354 dump_nvlist(config, 4);
2355 if ((nvlist_lookup_nvlist(config,
2356 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2357 (nvlist_lookup_uint64(vdev_tree,
2358 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2359 ashift = SPA_MINBLOCKSHIFT;
2360 nvlist_free(config);
2361 label_found = B_TRUE;
2362 }
2363 if (dump_opt['u'])
2364 dump_label_uberblocks(&label, ashift);
2365 }
2366
2367 (void) close(fd);
2368
2369 return (label_found ? 0 : 2);
2370 }
2371
2372 static uint64_t dataset_feature_count[SPA_FEATURES];
2373
2374 /*ARGSUSED*/
2375 static int
2376 dump_one_dir(const char *dsname, void *arg)
2377 {
2378 int error;
2379 objset_t *os;
2380
2381 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
2382 if (error != 0)
2383 return (0);
2384
2385 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2386 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2387 continue;
2388 ASSERT(spa_feature_table[f].fi_flags &
2389 ZFEATURE_FLAG_PER_DATASET);
2390 dataset_feature_count[f]++;
2391 }
2392
2393 dump_dir(os);
2394 close_objset(os, FTAG);
2395 fuid_table_destroy();
2396 return (0);
2397 }
2398
2399 /*
2400 * Block statistics.
2401 */
2402 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2403 typedef struct zdb_blkstats {
2404 uint64_t zb_asize;
2405 uint64_t zb_lsize;
2406 uint64_t zb_psize;
2407 uint64_t zb_count;
2408 uint64_t zb_gangs;
2409 uint64_t zb_ditto_samevdev;
2410 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2411 } zdb_blkstats_t;
2412
2413 /*
2414 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2415 */
2416 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2417 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2418 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2419 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2420
2421 static char *zdb_ot_extname[] = {
2422 "deferred free",
2423 "dedup ditto",
2424 "other",
2425 "Total",
2426 };
2427
2428 #define ZB_TOTAL DN_MAX_LEVELS
2429
2430 typedef struct zdb_cb {
2431 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2432 uint64_t zcb_dedup_asize;
2433 uint64_t zcb_dedup_blocks;
2434 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2435 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2436 [BPE_PAYLOAD_SIZE];
2437 uint64_t zcb_start;
2438 uint64_t zcb_lastprint;
2439 uint64_t zcb_totalasize;
2440 uint64_t zcb_errors[256];
2441 int zcb_readfails;
2442 int zcb_haderrors;
2443 spa_t *zcb_spa;
2444 } zdb_cb_t;
2445
2446 static void
2447 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2448 dmu_object_type_t type)
2449 {
2450 uint64_t refcnt = 0;
2451
2452 ASSERT(type < ZDB_OT_TOTAL);
2453
2454 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2455 return;
2456
2457 for (int i = 0; i < 4; i++) {
2458 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2459 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2460 int equal;
2461 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2462
2463 zb->zb_asize += BP_GET_ASIZE(bp);
2464 zb->zb_lsize += BP_GET_LSIZE(bp);
2465 zb->zb_psize += BP_GET_PSIZE(bp);
2466 zb->zb_count++;
2467
2468 /*
2469 * The histogram is only big enough to record blocks up to
2470 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2471 * "other", bucket.
2472 */
2473 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2474 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2475 zb->zb_psize_histogram[idx]++;
2476
2477 zb->zb_gangs += BP_COUNT_GANG(bp);
2478
2479 switch (BP_GET_NDVAS(bp)) {
2480 case 2:
2481 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2482 DVA_GET_VDEV(&bp->blk_dva[1]))
2483 zb->zb_ditto_samevdev++;
2484 break;
2485 case 3:
2486 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2487 DVA_GET_VDEV(&bp->blk_dva[1])) +
2488 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2489 DVA_GET_VDEV(&bp->blk_dva[2])) +
2490 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2491 DVA_GET_VDEV(&bp->blk_dva[2]));
2492 if (equal != 0)
2493 zb->zb_ditto_samevdev++;
2494 break;
2495 }
2496
2497 }
2498
2499 if (BP_IS_EMBEDDED(bp)) {
2500 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2501 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2502 [BPE_GET_PSIZE(bp)]++;
2503 return;
2504 }
2505
2506 if (dump_opt['L'])
2507 return;
2508
2509 if (BP_GET_DEDUP(bp)) {
2510 ddt_t *ddt;
2511 ddt_entry_t *dde;
2512
2513 ddt = ddt_select(zcb->zcb_spa, bp);
2514 ddt_enter(ddt);
2515 dde = ddt_lookup(ddt, bp, B_FALSE);
2516
2517 if (dde == NULL) {
2518 refcnt = 0;
2519 } else {
2520 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2521 ddt_phys_decref(ddp);
2522 refcnt = ddp->ddp_refcnt;
2523 if (ddt_phys_total_refcnt(dde) == 0)
2524 ddt_remove(ddt, dde);
2525 }
2526 ddt_exit(ddt);
2527 }
2528
2529 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2530 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2531 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2532 }
2533
2534 static void
2535 zdb_blkptr_done(zio_t *zio)
2536 {
2537 spa_t *spa = zio->io_spa;
2538 blkptr_t *bp = zio->io_bp;
2539 int ioerr = zio->io_error;
2540 zdb_cb_t *zcb = zio->io_private;
2541 zbookmark_phys_t *zb = &zio->io_bookmark;
2542
2543 abd_free(zio->io_abd);
2544
2545 mutex_enter(&spa->spa_scrub_lock);
2546 spa->spa_scrub_inflight--;
2547 cv_broadcast(&spa->spa_scrub_io_cv);
2548
2549 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2550 char blkbuf[BP_SPRINTF_LEN];
2551
2552 zcb->zcb_haderrors = 1;
2553 zcb->zcb_errors[ioerr]++;
2554
2555 if (dump_opt['b'] >= 2)
2556 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2557 else
2558 blkbuf[0] = '\0';
2559
2560 (void) printf("zdb_blkptr_cb: "
2561 "Got error %d reading "
2562 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2563 ioerr,
2564 (u_longlong_t)zb->zb_objset,
2565 (u_longlong_t)zb->zb_object,
2566 (u_longlong_t)zb->zb_level,
2567 (u_longlong_t)zb->zb_blkid,
2568 blkbuf);
2569 }
2570 mutex_exit(&spa->spa_scrub_lock);
2571 }
2572
2573 static int
2574 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2575 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2576 {
2577 zdb_cb_t *zcb = arg;
2578 dmu_object_type_t type;
2579 boolean_t is_metadata;
2580
2581 if (bp == NULL)
2582 return (0);
2583
2584 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2585 char blkbuf[BP_SPRINTF_LEN];
2586 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2587 (void) printf("objset %llu object %llu "
2588 "level %lld offset 0x%llx %s\n",
2589 (u_longlong_t)zb->zb_objset,
2590 (u_longlong_t)zb->zb_object,
2591 (longlong_t)zb->zb_level,
2592 (u_longlong_t)blkid2offset(dnp, bp, zb),
2593 blkbuf);
2594 }
2595
2596 if (BP_IS_HOLE(bp))
2597 return (0);
2598
2599 type = BP_GET_TYPE(bp);
2600
2601 zdb_count_block(zcb, zilog, bp,
2602 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2603
2604 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2605
2606 if (!BP_IS_EMBEDDED(bp) &&
2607 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2608 size_t size = BP_GET_PSIZE(bp);
2609 abd_t *abd = abd_alloc(size, B_FALSE);
2610 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2611
2612 /* If it's an intent log block, failure is expected. */
2613 if (zb->zb_level == ZB_ZIL_LEVEL)
2614 flags |= ZIO_FLAG_SPECULATIVE;
2615
2616 mutex_enter(&spa->spa_scrub_lock);
2617 while (spa->spa_scrub_inflight > max_inflight)
2618 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2619 spa->spa_scrub_inflight++;
2620 mutex_exit(&spa->spa_scrub_lock);
2621
2622 zio_nowait(zio_read(NULL, spa, bp, abd, size,
2623 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2624 }
2625
2626 zcb->zcb_readfails = 0;
2627
2628 /* only call gethrtime() every 100 blocks */
2629 static int iters;
2630 if (++iters > 100)
2631 iters = 0;
2632 else
2633 return (0);
2634
2635 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2636 uint64_t now = gethrtime();
2637 char buf[10];
2638 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2639 int kb_per_sec =
2640 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2641 int sec_remaining =
2642 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2643
2644 zfs_nicenum(bytes, buf, sizeof (buf));
2645 (void) fprintf(stderr,
2646 "\r%5s completed (%4dMB/s) "
2647 "estimated time remaining: %uhr %02umin %02usec ",
2648 buf, kb_per_sec / 1024,
2649 sec_remaining / 60 / 60,
2650 sec_remaining / 60 % 60,
2651 sec_remaining % 60);
2652
2653 zcb->zcb_lastprint = now;
2654 }
2655
2656 return (0);
2657 }
2658
2659 static void
2660 zdb_leak(void *arg, uint64_t start, uint64_t size)
2661 {
2662 vdev_t *vd = arg;
2663
2664 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2665 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2666 }
2667
2668 static metaslab_ops_t zdb_metaslab_ops = {
2669 NULL /* alloc */
2670 };
2671
2672 static void
2673 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2674 {
2675 ddt_bookmark_t ddb = { 0 };
2676 ddt_entry_t dde;
2677 int error;
2678
2679 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2680 blkptr_t blk;
2681 ddt_phys_t *ddp = dde.dde_phys;
2682
2683 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2684 return;
2685
2686 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2687
2688 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2689 if (ddp->ddp_phys_birth == 0)
2690 continue;
2691 ddt_bp_create(ddb.ddb_checksum,
2692 &dde.dde_key, ddp, &blk);
2693 if (p == DDT_PHYS_DITTO) {
2694 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2695 } else {
2696 zcb->zcb_dedup_asize +=
2697 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2698 zcb->zcb_dedup_blocks++;
2699 }
2700 }
2701 if (!dump_opt['L']) {
2702 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2703 ddt_enter(ddt);
2704 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2705 ddt_exit(ddt);
2706 }
2707 }
2708
2709 ASSERT(error == ENOENT);
2710 }
2711
2712 static void
2713 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2714 {
2715 zcb->zcb_spa = spa;
2716
2717 if (!dump_opt['L']) {
2718 vdev_t *rvd = spa->spa_root_vdev;
2719
2720 /*
2721 * We are going to be changing the meaning of the metaslab's
2722 * ms_tree. Ensure that the allocator doesn't try to
2723 * use the tree.
2724 */
2725 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
2726 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
2727
2728 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
2729 vdev_t *vd = rvd->vdev_child[c];
2730 metaslab_group_t *mg = vd->vdev_mg;
2731 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
2732 metaslab_t *msp = vd->vdev_ms[m];
2733 ASSERT3P(msp->ms_group, ==, mg);
2734 mutex_enter(&msp->ms_lock);
2735 metaslab_unload(msp);
2736
2737 /*
2738 * For leak detection, we overload the metaslab
2739 * ms_tree to contain allocated segments
2740 * instead of free segments. As a result,
2741 * we can't use the normal metaslab_load/unload
2742 * interfaces.
2743 */
2744 if (msp->ms_sm != NULL) {
2745 (void) fprintf(stderr,
2746 "\rloading space map for "
2747 "vdev %llu of %llu, "
2748 "metaslab %llu of %llu ...",
2749 (longlong_t)c,
2750 (longlong_t)rvd->vdev_children,
2751 (longlong_t)m,
2752 (longlong_t)vd->vdev_ms_count);
2753
2754 /*
2755 * We don't want to spend the CPU
2756 * manipulating the size-ordered
2757 * tree, so clear the range_tree
2758 * ops.
2759 */
2760 msp->ms_tree->rt_ops = NULL;
2761 VERIFY0(space_map_load(msp->ms_sm,
2762 msp->ms_tree, SM_ALLOC));
2763
2764 if (!msp->ms_loaded) {
2765 msp->ms_loaded = B_TRUE;
2766 }
2767 }
2768 mutex_exit(&msp->ms_lock);
2769 }
2770 }
2771 (void) fprintf(stderr, "\n");
2772 }
2773
2774 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2775
2776 zdb_ddt_leak_init(spa, zcb);
2777
2778 spa_config_exit(spa, SCL_CONFIG, FTAG);
2779 }
2780
2781 static void
2782 zdb_leak_fini(spa_t *spa)
2783 {
2784 if (!dump_opt['L']) {
2785 vdev_t *rvd = spa->spa_root_vdev;
2786 for (int c = 0; c < rvd->vdev_children; c++) {
2787 vdev_t *vd = rvd->vdev_child[c];
2788 metaslab_group_t *mg = vd->vdev_mg;
2789 for (int m = 0; m < vd->vdev_ms_count; m++) {
2790 metaslab_t *msp = vd->vdev_ms[m];
2791 ASSERT3P(mg, ==, msp->ms_group);
2792 mutex_enter(&msp->ms_lock);
2793
2794 /*
2795 * The ms_tree has been overloaded to
2796 * contain allocated segments. Now that we
2797 * finished traversing all blocks, any
2798 * block that remains in the ms_tree
2799 * represents an allocated block that we
2800 * did not claim during the traversal.
2801 * Claimed blocks would have been removed
2802 * from the ms_tree.
2803 */
2804 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2805
2806 if (msp->ms_loaded) {
2807 msp->ms_loaded = B_FALSE;
2808 }
2809
2810 mutex_exit(&msp->ms_lock);
2811 }
2812 }
2813 }
2814 }
2815
2816 /* ARGSUSED */
2817 static int
2818 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2819 {
2820 zdb_cb_t *zcb = arg;
2821
2822 if (dump_opt['b'] >= 5) {
2823 char blkbuf[BP_SPRINTF_LEN];
2824 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2825 (void) printf("[%s] %s\n",
2826 "deferred free", blkbuf);
2827 }
2828 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2829 return (0);
2830 }
2831
2832 static int
2833 dump_block_stats(spa_t *spa)
2834 {
2835 zdb_cb_t zcb = { 0 };
2836 zdb_blkstats_t *zb, *tzb;
2837 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2838 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2839 boolean_t leaks = B_FALSE;
2840
2841 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2842 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2843 (dump_opt['c'] == 1) ? "metadata " : "",
2844 dump_opt['c'] ? "checksums " : "",
2845 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2846 !dump_opt['L'] ? "nothing leaked " : "");
2847
2848 /*
2849 * Load all space maps as SM_ALLOC maps, then traverse the pool
2850 * claiming each block we discover. If the pool is perfectly
2851 * consistent, the space maps will be empty when we're done.
2852 * Anything left over is a leak; any block we can't claim (because
2853 * it's not part of any space map) is a double allocation,
2854 * reference to a freed block, or an unclaimed log block.
2855 */
2856 zdb_leak_init(spa, &zcb);
2857
2858 /*
2859 * If there's a deferred-free bplist, process that first.
2860 */
2861 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2862 count_block_cb, &zcb, NULL);
2863 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2864 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2865 count_block_cb, &zcb, NULL);
2866 }
2867 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2868 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2869 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2870 &zcb, NULL));
2871 }
2872
2873 if (dump_opt['c'] > 1)
2874 flags |= TRAVERSE_PREFETCH_DATA;
2875
2876 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2877 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2878 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2879
2880 /*
2881 * If we've traversed the data blocks then we need to wait for those
2882 * I/Os to complete. We leverage "The Godfather" zio to wait on
2883 * all async I/Os to complete.
2884 */
2885 if (dump_opt['c']) {
2886 for (int i = 0; i < max_ncpus; i++) {
2887 (void) zio_wait(spa->spa_async_zio_root[i]);
2888 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
2889 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2890 ZIO_FLAG_GODFATHER);
2891 }
2892 }
2893
2894 if (zcb.zcb_haderrors) {
2895 (void) printf("\nError counts:\n\n");
2896 (void) printf("\t%5s %s\n", "errno", "count");
2897 for (int e = 0; e < 256; e++) {
2898 if (zcb.zcb_errors[e] != 0) {
2899 (void) printf("\t%5d %llu\n",
2900 e, (u_longlong_t)zcb.zcb_errors[e]);
2901 }
2902 }
2903 }
2904
2905 /*
2906 * Report any leaked segments.
2907 */
2908 zdb_leak_fini(spa);
2909
2910 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2911
2912 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2913 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2914
2915 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2916 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2917
2918 if (total_found == total_alloc) {
2919 if (!dump_opt['L'])
2920 (void) printf("\n\tNo leaks (block sum matches space"
2921 " maps exactly)\n");
2922 } else {
2923 (void) printf("block traversal size %llu != alloc %llu "
2924 "(%s %lld)\n",
2925 (u_longlong_t)total_found,
2926 (u_longlong_t)total_alloc,
2927 (dump_opt['L']) ? "unreachable" : "leaked",
2928 (longlong_t)(total_alloc - total_found));
2929 leaks = B_TRUE;
2930 }
2931
2932 if (tzb->zb_count == 0)
2933 return (2);
2934
2935 (void) printf("\n");
2936 (void) printf("\tbp count: %10llu\n",
2937 (u_longlong_t)tzb->zb_count);
2938 (void) printf("\tganged count: %10llu\n",
2939 (longlong_t)tzb->zb_gangs);
2940 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2941 (u_longlong_t)tzb->zb_lsize,
2942 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2943 (void) printf("\tbp physical: %10llu avg:"
2944 " %6llu compression: %6.2f\n",
2945 (u_longlong_t)tzb->zb_psize,
2946 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2947 (double)tzb->zb_lsize / tzb->zb_psize);
2948 (void) printf("\tbp allocated: %10llu avg:"
2949 " %6llu compression: %6.2f\n",
2950 (u_longlong_t)tzb->zb_asize,
2951 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2952 (double)tzb->zb_lsize / tzb->zb_asize);
2953 (void) printf("\tbp deduped: %10llu ref>1:"
2954 " %6llu deduplication: %6.2f\n",
2955 (u_longlong_t)zcb.zcb_dedup_asize,
2956 (u_longlong_t)zcb.zcb_dedup_blocks,
2957 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2958 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2959 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2960
2961 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2962 if (zcb.zcb_embedded_blocks[i] == 0)
2963 continue;
2964 (void) printf("\n");
2965 (void) printf("\tadditional, non-pointer bps of type %u: "
2966 "%10llu\n",
2967 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2968
2969 if (dump_opt['b'] >= 3) {
2970 (void) printf("\t number of (compressed) bytes: "
2971 "number of bps\n");
2972 dump_histogram(zcb.zcb_embedded_histogram[i],
2973 sizeof (zcb.zcb_embedded_histogram[i]) /
2974 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2975 }
2976 }
2977
2978 if (tzb->zb_ditto_samevdev != 0) {
2979 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2980 (longlong_t)tzb->zb_ditto_samevdev);
2981 }
2982
2983 if (dump_opt['b'] >= 2) {
2984 int l, t, level;
2985 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2986 "\t avg\t comp\t%%Total\tType\n");
2987
2988 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2989 char csize[32], lsize[32], psize[32], asize[32];
2990 char avg[32], gang[32];
2991 char *typename;
2992
2993 if (t < DMU_OT_NUMTYPES)
2994 typename = dmu_ot[t].ot_name;
2995 else
2996 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2997
2998 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2999 (void) printf("%6s\t%5s\t%5s\t%5s"
3000 "\t%5s\t%5s\t%6s\t%s\n",
3001 "-",
3002 "-",
3003 "-",
3004 "-",
3005 "-",
3006 "-",
3007 "-",
3008 typename);
3009 continue;
3010 }
3011
3012 for (l = ZB_TOTAL - 1; l >= -1; l--) {
3013 level = (l == -1 ? ZB_TOTAL : l);
3014 zb = &zcb.zcb_type[level][t];
3015
3016 if (zb->zb_asize == 0)
3017 continue;
3018
3019 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
3020 continue;
3021
3022 if (level == 0 && zb->zb_asize ==
3023 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
3024 continue;
3025
3026 zdb_nicenum(zb->zb_count, csize);
3027 zdb_nicenum(zb->zb_lsize, lsize);
3028 zdb_nicenum(zb->zb_psize, psize);
3029 zdb_nicenum(zb->zb_asize, asize);
3030 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
3031 zdb_nicenum(zb->zb_gangs, gang);
3032
3033 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
3034 "\t%5.2f\t%6.2f\t",
3035 csize, lsize, psize, asize, avg,
3036 (double)zb->zb_lsize / zb->zb_psize,
3037 100.0 * zb->zb_asize / tzb->zb_asize);
3038
3039 if (level == ZB_TOTAL)
3040 (void) printf("%s\n", typename);
3041 else
3042 (void) printf(" L%d %s\n",
3043 level, typename);
3044
3045 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
3046 (void) printf("\t number of ganged "
3047 "blocks: %s\n", gang);
3048 }
3049
3050 if (dump_opt['b'] >= 4) {
3051 (void) printf("psize "
3052 "(in 512-byte sectors): "
3053 "number of blocks\n");
3054 dump_histogram(zb->zb_psize_histogram,
3055 PSIZE_HISTO_SIZE, 0);
3056 }
3057 }
3058 }
3059 }
3060
3061 (void) printf("\n");
3062
3063 if (leaks)
3064 return (2);
3065
3066 if (zcb.zcb_haderrors)
3067 return (3);
3068
3069 return (0);
3070 }
3071
3072 typedef struct zdb_ddt_entry {
3073 ddt_key_t zdde_key;
3074 uint64_t zdde_ref_blocks;
3075 uint64_t zdde_ref_lsize;
3076 uint64_t zdde_ref_psize;
3077 uint64_t zdde_ref_dsize;
3078 avl_node_t zdde_node;
3079 } zdb_ddt_entry_t;
3080
3081 /* ARGSUSED */
3082 static int
3083 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3084 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3085 {
3086 avl_tree_t *t = arg;
3087 avl_index_t where;
3088 zdb_ddt_entry_t *zdde, zdde_search;
3089
3090 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
3091 return (0);
3092
3093 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
3094 (void) printf("traversing objset %llu, %llu objects, "
3095 "%lu blocks so far\n",
3096 (u_longlong_t)zb->zb_objset,
3097 (u_longlong_t)BP_GET_FILL(bp),
3098 avl_numnodes(t));
3099 }
3100
3101 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
3102 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
3103 return (0);
3104
3105 ddt_key_fill(&zdde_search.zdde_key, bp);
3106
3107 zdde = avl_find(t, &zdde_search, &where);
3108
3109 if (zdde == NULL) {
3110 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
3111 zdde->zdde_key = zdde_search.zdde_key;
3112 avl_insert(t, zdde, where);
3113 }
3114
3115 zdde->zdde_ref_blocks += 1;
3116 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
3117 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
3118 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
3119
3120 return (0);
3121 }
3122
3123 static void
3124 dump_simulated_ddt(spa_t *spa)
3125 {
3126 avl_tree_t t;
3127 void *cookie = NULL;
3128 zdb_ddt_entry_t *zdde;
3129 ddt_histogram_t ddh_total = { 0 };
3130 ddt_stat_t dds_total = { 0 };
3131
3132 avl_create(&t, ddt_entry_compare,
3133 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
3134
3135 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3136
3137 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
3138 zdb_ddt_add_cb, &t);
3139
3140 spa_config_exit(spa, SCL_CONFIG, FTAG);
3141
3142 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
3143 ddt_stat_t dds;
3144 uint64_t refcnt = zdde->zdde_ref_blocks;
3145 ASSERT(refcnt != 0);
3146
3147 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
3148 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
3149 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
3150 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
3151
3152 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
3153 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
3154 dds.dds_ref_psize = zdde->zdde_ref_psize;
3155 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3156
3157 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3158 &dds, 0);
3159
3160 umem_free(zdde, sizeof (*zdde));
3161 }
3162
3163 avl_destroy(&t);
3164
3165 ddt_histogram_stat(&dds_total, &ddh_total);
3166
3167 (void) printf("Simulated DDT histogram:\n");
3168
3169 zpool_dump_ddt(&dds_total, &ddh_total);
3170
3171 dump_dedup_ratio(&dds_total);
3172 }
3173
3174 static void
3175 dump_zpool(spa_t *spa)
3176 {
3177 dsl_pool_t *dp = spa_get_dsl(spa);
3178 int rc = 0;
3179
3180 if (dump_opt['S']) {
3181 dump_simulated_ddt(spa);
3182 return;
3183 }
3184
3185 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3186 (void) printf("\nCached configuration:\n");
3187 dump_nvlist(spa->spa_config, 8);
3188 }
3189
3190 if (dump_opt['C'])
3191 dump_config(spa);
3192
3193 if (dump_opt['u'])
3194 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3195
3196 if (dump_opt['D'])
3197 dump_all_ddts(spa);
3198
3199 if (dump_opt['d'] > 2 || dump_opt['m'])
3200 dump_metaslabs(spa);
3201 if (dump_opt['M'])
3202 dump_metaslab_groups(spa);
3203
3204 if (dump_opt['d'] || dump_opt['i']) {
3205 dump_dir(dp->dp_meta_objset);
3206 if (dump_opt['d'] >= 3) {
3207 dump_full_bpobj(&spa->spa_deferred_bpobj,
3208 "Deferred frees", 0);
3209 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3210 dump_full_bpobj(
3211 &spa->spa_dsl_pool->dp_free_bpobj,
3212 "Pool snapshot frees", 0);
3213 }
3214
3215 if (spa_feature_is_active(spa,
3216 SPA_FEATURE_ASYNC_DESTROY)) {
3217 dump_bptree(spa->spa_meta_objset,
3218 spa->spa_dsl_pool->dp_bptree_obj,
3219 "Pool dataset frees");
3220 }
3221 dump_dtl(spa->spa_root_vdev, 0);
3222 }
3223 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3224 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3225
3226 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
3227 uint64_t refcount;
3228
3229 if (!(spa_feature_table[f].fi_flags &
3230 ZFEATURE_FLAG_PER_DATASET) ||
3231 !spa_feature_is_enabled(spa, f)) {
3232 ASSERT0(dataset_feature_count[f]);
3233 continue;
3234 }
3235 (void) feature_get_refcount(spa,
3236 &spa_feature_table[f], &refcount);
3237 if (dataset_feature_count[f] != refcount) {
3238 (void) printf("%s feature refcount mismatch: "
3239 "%lld datasets != %lld refcount\n",
3240 spa_feature_table[f].fi_uname,
3241 (longlong_t)dataset_feature_count[f],
3242 (longlong_t)refcount);
3243 rc = 2;
3244 } else {
3245 (void) printf("Verified %s feature refcount "
3246 "of %llu is correct\n",
3247 spa_feature_table[f].fi_uname,
3248 (longlong_t)refcount);
3249 }
3250 }
3251 }
3252 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3253 rc = dump_block_stats(spa);
3254
3255 if (rc == 0)
3256 rc = verify_spacemap_refcounts(spa);
3257
3258 if (dump_opt['s'])
3259 show_pool_stats(spa);
3260
3261 if (dump_opt['h'])
3262 dump_history(spa);
3263
3264 if (rc != 0) {
3265 dump_debug_buffer();
3266 exit(rc);
3267 }
3268 }
3269
3270 #define ZDB_FLAG_CHECKSUM 0x0001
3271 #define ZDB_FLAG_DECOMPRESS 0x0002
3272 #define ZDB_FLAG_BSWAP 0x0004
3273 #define ZDB_FLAG_GBH 0x0008
3274 #define ZDB_FLAG_INDIRECT 0x0010
3275 #define ZDB_FLAG_PHYS 0x0020
3276 #define ZDB_FLAG_RAW 0x0040
3277 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3278
3279 int flagbits[256];
3280
3281 static void
3282 zdb_print_blkptr(blkptr_t *bp, int flags)
3283 {
3284 char blkbuf[BP_SPRINTF_LEN];
3285
3286 if (flags & ZDB_FLAG_BSWAP)
3287 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3288
3289 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3290 (void) printf("%s\n", blkbuf);
3291 }
3292
3293 static void
3294 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3295 {
3296 int i;
3297
3298 for (i = 0; i < nbps; i++)
3299 zdb_print_blkptr(&bp[i], flags);
3300 }
3301
3302 static void
3303 zdb_dump_gbh(void *buf, int flags)
3304 {
3305 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3306 }
3307
3308 static void
3309 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3310 {
3311 if (flags & ZDB_FLAG_BSWAP)
3312 byteswap_uint64_array(buf, size);
3313 (void) write(1, buf, size);
3314 }
3315
3316 static void
3317 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3318 {
3319 uint64_t *d = (uint64_t *)buf;
3320 int nwords = size / sizeof (uint64_t);
3321 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3322 int i, j;
3323 char *hdr, *c;
3324
3325
3326 if (do_bswap)
3327 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3328 else
3329 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3330
3331 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3332
3333 for (i = 0; i < nwords; i += 2) {
3334 (void) printf("%06llx: %016llx %016llx ",
3335 (u_longlong_t)(i * sizeof (uint64_t)),
3336 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3337 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3338
3339 c = (char *)&d[i];
3340 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3341 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3342 (void) printf("\n");
3343 }
3344 }
3345
3346 /*
3347 * There are two acceptable formats:
3348 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3349 * child[.child]* - For example: 0.1.1
3350 *
3351 * The second form can be used to specify arbitrary vdevs anywhere
3352 * in the heirarchy. For example, in a pool with a mirror of
3353 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3354 */
3355 static vdev_t *
3356 zdb_vdev_lookup(vdev_t *vdev, char *path)
3357 {
3358 char *s, *p, *q;
3359 int i;
3360
3361 if (vdev == NULL)
3362 return (NULL);
3363
3364 /* First, assume the x.x.x.x format */
3365 i = (int)strtoul(path, &s, 10);
3366 if (s == path || (s && *s != '.' && *s != '\0'))
3367 goto name;
3368 if (i < 0 || i >= vdev->vdev_children)
3369 return (NULL);
3370
3371 vdev = vdev->vdev_child[i];
3372 if (*s == '\0')
3373 return (vdev);
3374 return (zdb_vdev_lookup(vdev, s+1));
3375
3376 name:
3377 for (i = 0; i < vdev->vdev_children; i++) {
3378 vdev_t *vc = vdev->vdev_child[i];
3379
3380 if (vc->vdev_path == NULL) {
3381 vc = zdb_vdev_lookup(vc, path);
3382 if (vc == NULL)
3383 continue;
3384 else
3385 return (vc);
3386 }
3387
3388 p = strrchr(vc->vdev_path, '/');
3389 p = p ? p + 1 : vc->vdev_path;
3390 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3391
3392 if (strcmp(vc->vdev_path, path) == 0)
3393 return (vc);
3394 if (strcmp(p, path) == 0)
3395 return (vc);
3396 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3397 return (vc);
3398 }
3399
3400 return (NULL);
3401 }
3402
3403 /* ARGSUSED */
3404 static int
3405 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused)
3406 {
3407 return (random_get_pseudo_bytes(buf, len));
3408 }
3409
3410 /*
3411 * Read a block from a pool and print it out. The syntax of the
3412 * block descriptor is:
3413 *
3414 * pool:vdev_specifier:offset:size[:flags]
3415 *
3416 * pool - The name of the pool you wish to read from
3417 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3418 * offset - offset, in hex, in bytes
3419 * size - Amount of data to read, in hex, in bytes
3420 * flags - A string of characters specifying options
3421 * b: Decode a blkptr at given offset within block
3422 * *c: Calculate and display checksums
3423 * d: Decompress data before dumping
3424 * e: Byteswap data before dumping
3425 * g: Display data as a gang block header
3426 * i: Display as an indirect block
3427 * p: Do I/O to physical offset
3428 * r: Dump raw data to stdout
3429 *
3430 * * = not yet implemented
3431 */
3432 static void
3433 zdb_read_block(char *thing, spa_t *spa)
3434 {
3435 blkptr_t blk, *bp = &blk;
3436 dva_t *dva = bp->blk_dva;
3437 int flags = 0;
3438 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3439 zio_t *zio;
3440 vdev_t *vd;
3441 abd_t *pabd;
3442 void *lbuf, *buf;
3443 char *s, *p, *dup, *vdev, *flagstr;
3444 int i, error;
3445
3446 dup = strdup(thing);
3447 s = strtok(dup, ":");
3448 vdev = s ? s : "";
3449 s = strtok(NULL, ":");
3450 offset = strtoull(s ? s : "", NULL, 16);
3451 s = strtok(NULL, ":");
3452 size = strtoull(s ? s : "", NULL, 16);
3453 s = strtok(NULL, ":");
3454 flagstr = s ? s : "";
3455
3456 s = NULL;
3457 if (size == 0)
3458 s = "size must not be zero";
3459 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3460 s = "size must be a multiple of sector size";
3461 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3462 s = "offset must be a multiple of sector size";
3463 if (s) {
3464 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3465 free(dup);
3466 return;
3467 }
3468
3469 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3470 for (i = 0; flagstr[i]; i++) {
3471 int bit = flagbits[(uchar_t)flagstr[i]];
3472
3473 if (bit == 0) {
3474 (void) printf("***Invalid flag: %c\n",
3475 flagstr[i]);
3476 continue;
3477 }
3478 flags |= bit;
3479
3480 /* If it's not something with an argument, keep going */
3481 if ((bit & (ZDB_FLAG_CHECKSUM |
3482 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3483 continue;
3484
3485 p = &flagstr[i + 1];
3486 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3487 blkptr_offset = strtoull(p, &p, 16);
3488 if (*p != ':' && *p != '\0') {
3489 (void) printf("***Invalid flag arg: '%s'\n", s);
3490 free(dup);
3491 return;
3492 }
3493 }
3494 }
3495
3496 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3497 if (vd == NULL) {
3498 (void) printf("***Invalid vdev: %s\n", vdev);
3499 free(dup);
3500 return;
3501 } else {
3502 if (vd->vdev_path)
3503 (void) fprintf(stderr, "Found vdev: %s\n",
3504 vd->vdev_path);
3505 else
3506 (void) fprintf(stderr, "Found vdev type: %s\n",
3507 vd->vdev_ops->vdev_op_type);
3508 }
3509
3510 psize = size;
3511 lsize = size;
3512
3513 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE);
3514 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3515
3516 BP_ZERO(bp);
3517
3518 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3519 DVA_SET_OFFSET(&dva[0], offset);
3520 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3521 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3522
3523 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3524
3525 BP_SET_LSIZE(bp, lsize);
3526 BP_SET_PSIZE(bp, psize);
3527 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3528 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3529 BP_SET_TYPE(bp, DMU_OT_NONE);
3530 BP_SET_LEVEL(bp, 0);
3531 BP_SET_DEDUP(bp, 0);
3532 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3533
3534 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3535 zio = zio_root(spa, NULL, NULL, 0);
3536
3537 if (vd == vd->vdev_top) {
3538 /*
3539 * Treat this as a normal block read.
3540 */
3541 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
3542 ZIO_PRIORITY_SYNC_READ,
3543 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3544 } else {
3545 /*
3546 * Treat this as a vdev child I/O.
3547 */
3548 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
3549 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3550 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3551 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3552 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3553 }
3554
3555 error = zio_wait(zio);
3556 spa_config_exit(spa, SCL_STATE, FTAG);
3557
3558 if (error) {
3559 (void) printf("Read of %s failed, error: %d\n", thing, error);
3560 goto out;
3561 }
3562
3563 if (flags & ZDB_FLAG_DECOMPRESS) {
3564 /*
3565 * We don't know how the data was compressed, so just try
3566 * every decompress function at every inflated blocksize.
3567 */
3568 enum zio_compress c;
3569 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3570 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3571
3572 abd_copy_to_buf(pbuf2, pabd, psize);
3573
3574 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize,
3575 random_get_pseudo_bytes_cb, NULL));
3576
3577 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3578 SPA_MAXBLOCKSIZE - psize));
3579
3580 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3581 lsize -= SPA_MINBLOCKSIZE) {
3582 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3583 if (zio_decompress_data(c, pabd,
3584 lbuf, psize, lsize) == 0 &&
3585 zio_decompress_data_buf(c, pbuf2,
3586 lbuf2, psize, lsize) == 0 &&
3587 bcmp(lbuf, lbuf2, lsize) == 0)
3588 break;
3589 }
3590 if (c != ZIO_COMPRESS_FUNCTIONS)
3591 break;
3592 lsize -= SPA_MINBLOCKSIZE;
3593 }
3594
3595 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3596 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3597
3598 if (lsize <= psize) {
3599 (void) printf("Decompress of %s failed\n", thing);
3600 goto out;
3601 }
3602 buf = lbuf;
3603 size = lsize;
3604 } else {
3605 buf = abd_to_buf(pabd);
3606 size = psize;
3607 }
3608
3609 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3610 zdb_print_blkptr((blkptr_t *)(void *)
3611 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3612 else if (flags & ZDB_FLAG_RAW)
3613 zdb_dump_block_raw(buf, size, flags);
3614 else if (flags & ZDB_FLAG_INDIRECT)
3615 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3616 flags);
3617 else if (flags & ZDB_FLAG_GBH)
3618 zdb_dump_gbh(buf, flags);
3619 else
3620 zdb_dump_block(thing, buf, size, flags);
3621
3622 out:
3623 abd_free(pabd);
3624 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3625 free(dup);
3626 }
3627
3628 static void
3629 zdb_embedded_block(char *thing)
3630 {
3631 blkptr_t bp = { 0 };
3632 unsigned long long *words = (void *)&bp;
3633 char buf[SPA_MAXBLOCKSIZE];
3634 int err;
3635
3636 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
3637 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
3638 words + 0, words + 1, words + 2, words + 3,
3639 words + 4, words + 5, words + 6, words + 7,
3640 words + 8, words + 9, words + 10, words + 11,
3641 words + 12, words + 13, words + 14, words + 15);
3642 if (err != 16) {
3643 (void) printf("invalid input format\n");
3644 exit(1);
3645 }
3646 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
3647 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
3648 if (err != 0) {
3649 (void) printf("decode failed: %u\n", err);
3650 exit(1);
3651 }
3652 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
3653 }
3654
3655 static boolean_t
3656 pool_match(nvlist_t *cfg, char *tgt)
3657 {
3658 uint64_t v, guid = strtoull(tgt, NULL, 0);
3659 char *s;
3660
3661 if (guid != 0) {
3662 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3663 return (v == guid);
3664 } else {
3665 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3666 return (strcmp(s, tgt) == 0);
3667 }
3668 return (B_FALSE);
3669 }
3670
3671 static char *
3672 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3673 {
3674 nvlist_t *pools;
3675 nvlist_t *match = NULL;
3676 char *name = NULL;
3677 char *sepp = NULL;
3678 char sep = '\0';
3679 int count = 0;
3680 importargs_t args = { 0 };
3681
3682 args.paths = dirc;
3683 args.path = dirv;
3684 args.can_be_active = B_TRUE;
3685
3686 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3687 sep = *sepp;
3688 *sepp = '\0';
3689 }
3690
3691 pools = zpool_search_import(g_zfs, &args);
3692
3693 if (pools != NULL) {
3694 nvpair_t *elem = NULL;
3695 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3696 verify(nvpair_value_nvlist(elem, configp) == 0);
3697 if (pool_match(*configp, *target)) {
3698 count++;
3699 if (match != NULL) {
3700 /* print previously found config */
3701 if (name != NULL) {
3702 (void) printf("%s\n", name);
3703 dump_nvlist(match, 8);
3704 name = NULL;
3705 }
3706 (void) printf("%s\n",
3707 nvpair_name(elem));
3708 dump_nvlist(*configp, 8);
3709 } else {
3710 match = *configp;
3711 name = nvpair_name(elem);
3712 }
3713 }
3714 }
3715 }
3716 if (count > 1)
3717 (void) fatal("\tMatched %d pools - use pool GUID "
3718 "instead of pool name or \n"
3719 "\tpool name part of a dataset name to select pool", count);
3720
3721 if (sepp)
3722 *sepp = sep;
3723 /*
3724 * If pool GUID was specified for pool id, replace it with pool name
3725 */
3726 if (name && (strstr(*target, name) != *target)) {
3727 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3728
3729 *target = umem_alloc(sz, UMEM_NOFAIL);
3730 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3731 }
3732
3733 *configp = name ? match : NULL;
3734
3735 return (name);
3736 }
3737
3738 int
3739 main(int argc, char **argv)
3740 {
3741 int i, c;
3742 struct rlimit rl = { 1024, 1024 };
3743 spa_t *spa = NULL;
3744 objset_t *os = NULL;
3745 int dump_all = 1;
3746 int verbose = 0;
3747 int error = 0;
3748 char **searchdirs = NULL;
3749 int nsearch = 0;
3750 char *target;
3751 nvlist_t *policy = NULL;
3752 uint64_t max_txg = UINT64_MAX;
3753 int flags = ZFS_IMPORT_MISSING_LOG;
3754 int rewind = ZPOOL_NEVER_REWIND;
3755 char *spa_config_path_env;
3756 boolean_t target_is_spa = B_TRUE;
3757
3758 (void) setrlimit(RLIMIT_NOFILE, &rl);
3759 (void) enable_extended_FILE_stdio(-1, -1);
3760
3761 dprintf_setup(&argc, argv);
3762
3763 /*
3764 * If there is an environment variable SPA_CONFIG_PATH it overrides
3765 * default spa_config_path setting. If -U flag is specified it will
3766 * override this environment variable settings once again.
3767 */
3768 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3769 if (spa_config_path_env != NULL)
3770 spa_config_path = spa_config_path_env;
3771
3772 while ((c = getopt(argc, argv,
3773 "AbcCdDeEFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
3774 switch (c) {
3775 case 'b':
3776 case 'c':
3777 case 'C':
3778 case 'd':
3779 case 'D':
3780 case 'E':
3781 case 'G':
3782 case 'h':
3783 case 'i':
3784 case 'l':
3785 case 'm':
3786 case 'M':
3787 case 'O':
3788 case 'R':
3789 case 's':
3790 case 'S':
3791 case 'u':
3792 dump_opt[c]++;
3793 dump_all = 0;
3794 break;
3795 case 'A':
3796 case 'e':
3797 case 'F':
3798 case 'L':
3799 case 'P':
3800 case 'q':
3801 case 'X':
3802 dump_opt[c]++;
3803 break;
3804 /* NB: Sort single match options below. */
3805 case 'I':
3806 max_inflight = strtoull(optarg, NULL, 0);
3807 if (max_inflight == 0) {
3808 (void) fprintf(stderr, "maximum number "
3809 "of inflight I/Os must be greater "
3810 "than 0\n");
3811 usage();
3812 }
3813 break;
3814 case 'o':
3815 error = set_global_var(optarg);
3816 if (error != 0)
3817 usage();
3818 break;
3819 case 'p':
3820 if (searchdirs == NULL) {
3821 searchdirs = umem_alloc(sizeof (char *),
3822 UMEM_NOFAIL);
3823 } else {
3824 char **tmp = umem_alloc((nsearch + 1) *
3825 sizeof (char *), UMEM_NOFAIL);
3826 bcopy(searchdirs, tmp, nsearch *
3827 sizeof (char *));
3828 umem_free(searchdirs,
3829 nsearch * sizeof (char *));
3830 searchdirs = tmp;
3831 }
3832 searchdirs[nsearch++] = optarg;
3833 break;
3834 case 't':
3835 max_txg = strtoull(optarg, NULL, 0);
3836 if (max_txg < TXG_INITIAL) {
3837 (void) fprintf(stderr, "incorrect txg "
3838 "specified: %s\n", optarg);
3839 usage();
3840 }
3841 break;
3842 case 'U':
3843 spa_config_path = optarg;
3844 if (spa_config_path[0] != '/') {
3845 (void) fprintf(stderr,
3846 "cachefile must be an absolute path "
3847 "(i.e. start with a slash)\n");
3848 usage();
3849 }
3850 break;
3851 case 'v':
3852 verbose++;
3853 break;
3854 case 'V':
3855 flags = ZFS_IMPORT_VERBATIM;
3856 break;
3857 case 'x':
3858 vn_dumpdir = optarg;
3859 break;
3860 default:
3861 usage();
3862 break;
3863 }
3864 }
3865
3866 if (!dump_opt['e'] && searchdirs != NULL) {
3867 (void) fprintf(stderr, "-p option requires use of -e\n");
3868 usage();
3869 }
3870
3871 /*
3872 * ZDB does not typically re-read blocks; therefore limit the ARC
3873 * to 256 MB, which can be used entirely for metadata.
3874 */
3875 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
3876
3877 /*
3878 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
3879 * "zdb -b" uses traversal prefetch which uses async reads.
3880 * For good performance, let several of them be active at once.
3881 */
3882 zfs_vdev_async_read_max_active = 10;
3883
3884 /*
3885 * Disable reference tracking for better performance.
3886 */
3887 reference_tracking_enable = B_FALSE;
3888
3889 kernel_init(FREAD);
3890 g_zfs = libzfs_init();
3891 ASSERT(g_zfs != NULL);
3892
3893 if (dump_all)
3894 verbose = MAX(verbose, 1);
3895
3896 for (c = 0; c < 256; c++) {
3897 if (dump_all && strchr("AeEFlLOPRSX", c) == NULL)
3898 dump_opt[c] = 1;
3899 if (dump_opt[c])
3900 dump_opt[c] += verbose;
3901 }
3902
3903 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3904 zfs_recover = (dump_opt['A'] > 1);
3905
3906 argc -= optind;
3907 argv += optind;
3908
3909 if (argc < 2 && dump_opt['R'])
3910 usage();
3911
3912 if (dump_opt['E']) {
3913 if (argc != 1)
3914 usage();
3915 zdb_embedded_block(argv[0]);
3916 return (0);
3917 }
3918
3919 if (argc < 1) {
3920 if (!dump_opt['e'] && dump_opt['C']) {
3921 dump_cachefile(spa_config_path);
3922 return (0);
3923 }
3924 usage();
3925 }
3926
3927 if (dump_opt['l'])
3928 return (dump_label(argv[0]));
3929
3930 if (dump_opt['O']) {
3931 if (argc != 2)
3932 usage();
3933 dump_opt['v'] = verbose + 3;
3934 return (dump_path(argv[0], argv[1]));
3935 }
3936
3937 if (dump_opt['X'] || dump_opt['F'])
3938 rewind = ZPOOL_DO_REWIND |
3939 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3940
3941 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3942 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3943 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3944 fatal("internal error: %s", strerror(ENOMEM));
3945
3946 error = 0;
3947 target = argv[0];
3948
3949 if (dump_opt['e']) {
3950 nvlist_t *cfg = NULL;
3951 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3952
3953 error = ENOENT;
3954 if (name) {
3955 if (dump_opt['C'] > 1) {
3956 (void) printf("\nConfiguration for import:\n");
3957 dump_nvlist(cfg, 8);
3958 }
3959 if (nvlist_add_nvlist(cfg,
3960 ZPOOL_REWIND_POLICY, policy) != 0) {
3961 fatal("can't open '%s': %s",
3962 target, strerror(ENOMEM));
3963 }
3964 error = spa_import(name, cfg, NULL, flags);
3965 }
3966 }
3967
3968 if (strpbrk(target, "/@") != NULL) {
3969 size_t targetlen;
3970
3971 target_is_spa = B_FALSE;
3972 /*
3973 * Remove any trailing slash. Later code would get confused
3974 * by it, but we want to allow it so that "pool/" can
3975 * indicate that we want to dump the topmost filesystem,
3976 * rather than the whole pool.
3977 */
3978 targetlen = strlen(target);
3979 if (targetlen != 0 && target[targetlen - 1] == '/')
3980 target[targetlen - 1] = '\0';
3981 }
3982
3983 if (error == 0) {
3984 if (target_is_spa || dump_opt['R']) {
3985 error = spa_open_rewind(target, &spa, FTAG, policy,
3986 NULL);
3987 if (error) {
3988 /*
3989 * If we're missing the log device then
3990 * try opening the pool after clearing the
3991 * log state.
3992 */
3993 mutex_enter(&spa_namespace_lock);
3994 if ((spa = spa_lookup(target)) != NULL &&
3995 spa->spa_log_state == SPA_LOG_MISSING) {
3996 spa->spa_log_state = SPA_LOG_CLEAR;
3997 error = 0;
3998 }
3999 mutex_exit(&spa_namespace_lock);
4000
4001 if (!error) {
4002 error = spa_open_rewind(target, &spa,
4003 FTAG, policy, NULL);
4004 }
4005 }
4006 } else {
4007 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
4008 }
4009 }
4010 nvlist_free(policy);
4011
4012 if (error)
4013 fatal("can't open '%s': %s", target, strerror(error));
4014
4015 argv++;
4016 argc--;
4017 if (!dump_opt['R']) {
4018 if (argc > 0) {
4019 zopt_objects = argc;
4020 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
4021 for (i = 0; i < zopt_objects; i++) {
4022 errno = 0;
4023 zopt_object[i] = strtoull(argv[i], NULL, 0);
4024 if (zopt_object[i] == 0 && errno != 0)
4025 fatal("bad number %s: %s",
4026 argv[i], strerror(errno));
4027 }
4028 }
4029 if (os != NULL) {
4030 dump_dir(os);
4031 } else if (zopt_objects > 0 && !dump_opt['m']) {
4032 dump_dir(spa->spa_meta_objset);
4033 } else {
4034 dump_zpool(spa);
4035 }
4036 } else {
4037 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
4038 flagbits['c'] = ZDB_FLAG_CHECKSUM;
4039 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
4040 flagbits['e'] = ZDB_FLAG_BSWAP;
4041 flagbits['g'] = ZDB_FLAG_GBH;
4042 flagbits['i'] = ZDB_FLAG_INDIRECT;
4043 flagbits['p'] = ZDB_FLAG_PHYS;
4044 flagbits['r'] = ZDB_FLAG_RAW;
4045
4046 for (i = 0; i < argc; i++)
4047 zdb_read_block(argv[i], spa);
4048 }
4049
4050 if (os != NULL)
4051 close_objset(os, FTAG);
4052 else
4053 spa_close(spa, FTAG);
4054
4055 fuid_table_destroy();
4056
4057 dump_debug_buffer();
4058
4059 libzfs_fini(g_zfs);
4060 kernel_fini();
4061
4062 return (0);
4063 }
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