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, 2017 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2017 Nexenta Systems, Inc.
27 * Copyright 2017 RackTop Systems.
28 */
29
30 #include <stdio.h>
31 #include <unistd.h>
32 #include <stdio_ext.h>
33 #include <stdlib.h>
34 #include <ctype.h>
35 #include <sys/zfs_context.h>
36 #include <sys/spa.h>
37 #include <sys/spa_impl.h>
38 #include <sys/dmu.h>
39 #include <sys/zap.h>
40 #include <sys/fs/zfs.h>
41 #include <sys/zfs_znode.h>
42 #include <sys/zfs_sa.h>
43 #include <sys/sa.h>
44 #include <sys/sa_impl.h>
45 #include <sys/vdev.h>
46 #include <sys/vdev_impl.h>
47 #include <sys/metaslab_impl.h>
48 #include <sys/dmu_objset.h>
49 #include <sys/dsl_dir.h>
50 #include <sys/dsl_dataset.h>
51 #include <sys/dsl_pool.h>
52 #include <sys/dbuf.h>
53 #include <sys/zil.h>
54 #include <sys/zil_impl.h>
55 #include <sys/stat.h>
56 #include <sys/resource.h>
57 #include <sys/dmu_traverse.h>
58 #include <sys/zio_checksum.h>
59 #include <sys/zio_compress.h>
60 #include <sys/zfs_fuid.h>
61 #include <sys/arc.h>
62 #include <sys/ddt.h>
63 #include <sys/zfeature.h>
64 #include <sys/abd.h>
65 #include <sys/blkptr.h>
66 #include <zfs_comutil.h>
67 #include <libcmdutils.h>
68 #undef verify
69 #include <libzfs.h>
70
71 #include "zdb.h"
72
73 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
74 zio_compress_table[(idx)].ci_name : "UNKNOWN")
75 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
76 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
77 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
78 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
79 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
80 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
81 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \
82 DMU_OT_ZAP_OTHER : \
83 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \
84 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES)
85
86 #ifndef lint
87 extern int reference_tracking_enable;
88 extern boolean_t zfs_recover;
89 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
90 extern int zfs_vdev_async_read_max_active;
91 extern int aok;
92 extern boolean_t spa_load_verify_dryrun;
93 #else
94 int reference_tracking_enable;
95 boolean_t zfs_recover;
96 uint64_t zfs_arc_max, zfs_arc_meta_limit;
97 int zfs_vdev_async_read_max_active;
98 int aok;
99 boolean_t spa_load_verify_dryrun;
100 #endif
101
102 static const char cmdname[] = "zdb";
103 uint8_t dump_opt[256];
104
105 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
106
107 uint64_t *zopt_object = NULL;
108 static unsigned zopt_objects = 0;
109 libzfs_handle_t *g_zfs;
110 uint64_t max_inflight = 1000;
111
112 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
113
114 /*
115 * These libumem hooks provide a reasonable set of defaults for the allocator's
116 * debugging facilities.
117 */
118 const char *
119 _umem_debug_init()
120 {
121 return ("default,verbose"); /* $UMEM_DEBUG setting */
122 }
123
124 const char *
125 _umem_logging_init(void)
126 {
127 return ("fail,contents"); /* $UMEM_LOGGING setting */
128 }
129
130 static void
131 usage(void)
132 {
133 (void) fprintf(stderr,
134 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] "
135 "[-I <inflight I/Os>]\n"
136 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
137 "\t\t[<poolname> [<object> ...]]\n"
138 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> "
139 "[<object> ...]\n"
140 "\t%s -C [-A] [-U <cache>]\n"
141 "\t%s -l [-Aqu] <device>\n"
142 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
143 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
144 "\t%s -O <dataset> <path>\n"
145 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
146 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
147 "\t%s -E [-A] word0:word1:...:word15\n"
148 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
149 "<poolname>\n\n",
150 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
151 cmdname, cmdname);
152
153 (void) fprintf(stderr, " Dataset name must include at least one "
154 "separator character '/' or '@'\n");
155 (void) fprintf(stderr, " If dataset name is specified, only that "
156 "dataset is dumped\n");
157 (void) fprintf(stderr, " If object numbers are specified, only "
158 "those objects are dumped\n\n");
159 (void) fprintf(stderr, " Options to control amount of output:\n");
160 (void) fprintf(stderr, " -b block statistics\n");
161 (void) fprintf(stderr, " -c checksum all metadata (twice for "
162 "all data) blocks\n");
163 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
164 (void) fprintf(stderr, " -d dataset(s)\n");
165 (void) fprintf(stderr, " -D dedup statistics\n");
166 (void) fprintf(stderr, " -E decode and display block from an "
167 "embedded block pointer\n");
168 (void) fprintf(stderr, " -h pool history\n");
169 (void) fprintf(stderr, " -i intent logs\n");
170 (void) fprintf(stderr, " -l read label contents\n");
171 (void) fprintf(stderr, " -L disable leak tracking (do not "
172 "load spacemaps)\n");
173 (void) fprintf(stderr, " -m metaslabs\n");
174 (void) fprintf(stderr, " -M metaslab groups\n");
175 (void) fprintf(stderr, " -O perform object lookups by path\n");
176 (void) fprintf(stderr, " -R read and display block from a "
177 "device\n");
178 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
179 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
180 (void) fprintf(stderr, " -v verbose (applies to all "
181 "others)\n\n");
182 (void) fprintf(stderr, " Below options are intended for use "
183 "with other options:\n");
184 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
185 "panic recovery (-AA) or both (-AAA)\n");
186 (void) fprintf(stderr, " -e pool is exported/destroyed/"
187 "has altroot/not in a cachefile\n");
188 (void) fprintf(stderr, " -F attempt automatic rewind within "
189 "safe range of transaction groups\n");
190 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
191 "exiting\n");
192 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
193 "specify the maximum number of "
194 "checksumming I/Os [default is 200]\n");
195 (void) fprintf(stderr, " -o <variable>=<value> set global "
196 "variable to an unsigned 32-bit integer value\n");
197 (void) fprintf(stderr, " -p <path> -- use one or more with "
198 "-e to specify path to vdev dir\n");
199 (void) fprintf(stderr, " -P print numbers in parseable form\n");
200 (void) fprintf(stderr, " -q don't print label contents\n");
201 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
202 "searching for uberblocks\n");
203 (void) fprintf(stderr, " -u uberblock\n");
204 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
205 "cachefile\n");
206 (void) fprintf(stderr, " -V do verbatim import\n");
207 (void) fprintf(stderr, " -x <dumpdir> -- "
208 "dump all read blocks into specified directory\n");
209 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
210 "work with dataset)\n\n");
211 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
212 "to make only that option verbose\n");
213 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
214 exit(1);
215 }
216
217 static void
218 dump_debug_buffer()
219 {
220 if (dump_opt['G']) {
221 (void) printf("\n");
222 zfs_dbgmsg_print("zdb");
223 }
224 }
225
226 /*
227 * Called for usage errors that are discovered after a call to spa_open(),
228 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
229 */
230
231 static void
232 fatal(const char *fmt, ...)
233 {
234 va_list ap;
235
236 va_start(ap, fmt);
237 (void) fprintf(stderr, "%s: ", cmdname);
238 (void) vfprintf(stderr, fmt, ap);
239 va_end(ap);
240 (void) fprintf(stderr, "\n");
241
242 dump_debug_buffer();
243
244 exit(1);
245 }
246
247 /* ARGSUSED */
248 static void
249 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
250 {
251 nvlist_t *nv;
252 size_t nvsize = *(uint64_t *)data;
253 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
254
255 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
256
257 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
258
259 umem_free(packed, nvsize);
260
261 dump_nvlist(nv, 8);
262
263 nvlist_free(nv);
264 }
265
266 /* ARGSUSED */
267 static void
268 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
269 {
270 spa_history_phys_t *shp = data;
271
272 if (shp == NULL)
273 return;
274
275 (void) printf("\t\tpool_create_len = %llu\n",
276 (u_longlong_t)shp->sh_pool_create_len);
277 (void) printf("\t\tphys_max_off = %llu\n",
278 (u_longlong_t)shp->sh_phys_max_off);
279 (void) printf("\t\tbof = %llu\n",
280 (u_longlong_t)shp->sh_bof);
281 (void) printf("\t\teof = %llu\n",
282 (u_longlong_t)shp->sh_eof);
283 (void) printf("\t\trecords_lost = %llu\n",
284 (u_longlong_t)shp->sh_records_lost);
285 }
286
287 static void
288 zdb_nicenum(uint64_t num, char *buf, size_t buflen)
289 {
290 if (dump_opt['P'])
291 (void) snprintf(buf, buflen, "%llu", (longlong_t)num);
292 else
293 nicenum(num, buf, sizeof (buf));
294 }
295
296 static const char histo_stars[] = "****************************************";
297 static const uint64_t histo_width = sizeof (histo_stars) - 1;
298
299 static void
300 dump_histogram(const uint64_t *histo, int size, int offset)
301 {
302 int i;
303 int minidx = size - 1;
304 int maxidx = 0;
305 uint64_t max = 0;
306
307 for (i = 0; i < size; i++) {
308 if (histo[i] > max)
309 max = histo[i];
310 if (histo[i] > 0 && i > maxidx)
311 maxidx = i;
312 if (histo[i] > 0 && i < minidx)
313 minidx = i;
314 }
315
316 if (max < histo_width)
317 max = histo_width;
318
319 for (i = minidx; i <= maxidx; i++) {
320 (void) printf("\t\t\t%3u: %6llu %s\n",
321 i + offset, (u_longlong_t)histo[i],
322 &histo_stars[(max - histo[i]) * histo_width / max]);
323 }
324 }
325
326 static void
327 dump_zap_stats(objset_t *os, uint64_t object)
328 {
329 int error;
330 zap_stats_t zs;
331
332 error = zap_get_stats(os, object, &zs);
333 if (error)
334 return;
335
336 if (zs.zs_ptrtbl_len == 0) {
337 ASSERT(zs.zs_num_blocks == 1);
338 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
339 (u_longlong_t)zs.zs_blocksize,
340 (u_longlong_t)zs.zs_num_entries);
341 return;
342 }
343
344 (void) printf("\tFat ZAP stats:\n");
345
346 (void) printf("\t\tPointer table:\n");
347 (void) printf("\t\t\t%llu elements\n",
348 (u_longlong_t)zs.zs_ptrtbl_len);
349 (void) printf("\t\t\tzt_blk: %llu\n",
350 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
351 (void) printf("\t\t\tzt_numblks: %llu\n",
352 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
353 (void) printf("\t\t\tzt_shift: %llu\n",
354 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
355 (void) printf("\t\t\tzt_blks_copied: %llu\n",
356 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
357 (void) printf("\t\t\tzt_nextblk: %llu\n",
358 (u_longlong_t)zs.zs_ptrtbl_nextblk);
359
360 (void) printf("\t\tZAP entries: %llu\n",
361 (u_longlong_t)zs.zs_num_entries);
362 (void) printf("\t\tLeaf blocks: %llu\n",
363 (u_longlong_t)zs.zs_num_leafs);
364 (void) printf("\t\tTotal blocks: %llu\n",
365 (u_longlong_t)zs.zs_num_blocks);
366 (void) printf("\t\tzap_block_type: 0x%llx\n",
367 (u_longlong_t)zs.zs_block_type);
368 (void) printf("\t\tzap_magic: 0x%llx\n",
369 (u_longlong_t)zs.zs_magic);
370 (void) printf("\t\tzap_salt: 0x%llx\n",
371 (u_longlong_t)zs.zs_salt);
372
373 (void) printf("\t\tLeafs with 2^n pointers:\n");
374 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
375
376 (void) printf("\t\tBlocks with n*5 entries:\n");
377 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
378
379 (void) printf("\t\tBlocks n/10 full:\n");
380 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
381
382 (void) printf("\t\tEntries with n chunks:\n");
383 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
384
385 (void) printf("\t\tBuckets with n entries:\n");
386 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
387 }
388
389 /*ARGSUSED*/
390 static void
391 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
392 {
393 }
394
395 /*ARGSUSED*/
396 static void
397 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
398 {
399 (void) printf("\tUNKNOWN OBJECT TYPE\n");
400 }
401
402 /*ARGSUSED*/
403 static void
404 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
405 {
406 }
407
408 /*ARGSUSED*/
409 static void
410 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
411 {
412 }
413
414 /*ARGSUSED*/
415 static void
416 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
417 {
418 zap_cursor_t zc;
419 zap_attribute_t attr;
420 void *prop;
421 unsigned i;
422
423 dump_zap_stats(os, object);
424 (void) printf("\n");
425
426 for (zap_cursor_init(&zc, os, object);
427 zap_cursor_retrieve(&zc, &attr) == 0;
428 zap_cursor_advance(&zc)) {
429 (void) printf("\t\t%s = ", attr.za_name);
430 if (attr.za_num_integers == 0) {
431 (void) printf("\n");
432 continue;
433 }
434 prop = umem_zalloc(attr.za_num_integers *
435 attr.za_integer_length, UMEM_NOFAIL);
436 (void) zap_lookup(os, object, attr.za_name,
437 attr.za_integer_length, attr.za_num_integers, prop);
438 if (attr.za_integer_length == 1) {
439 (void) printf("%s", (char *)prop);
440 } else {
441 for (i = 0; i < attr.za_num_integers; i++) {
442 switch (attr.za_integer_length) {
443 case 2:
444 (void) printf("%u ",
445 ((uint16_t *)prop)[i]);
446 break;
447 case 4:
448 (void) printf("%u ",
449 ((uint32_t *)prop)[i]);
450 break;
451 case 8:
452 (void) printf("%lld ",
453 (u_longlong_t)((int64_t *)prop)[i]);
454 break;
455 }
456 }
457 }
458 (void) printf("\n");
459 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
460 }
461 zap_cursor_fini(&zc);
462 }
463
464 static void
465 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
466 {
467 bpobj_phys_t *bpop = data;
468 char bytes[32], comp[32], uncomp[32];
469
470 /* make sure the output won't get truncated */
471 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
472 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
473 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
474
475 if (bpop == NULL)
476 return;
477
478 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes));
479 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp));
480 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp));
481
482 (void) printf("\t\tnum_blkptrs = %llu\n",
483 (u_longlong_t)bpop->bpo_num_blkptrs);
484 (void) printf("\t\tbytes = %s\n", bytes);
485 if (size >= BPOBJ_SIZE_V1) {
486 (void) printf("\t\tcomp = %s\n", comp);
487 (void) printf("\t\tuncomp = %s\n", uncomp);
488 }
489 if (size >= sizeof (*bpop)) {
490 (void) printf("\t\tsubobjs = %llu\n",
491 (u_longlong_t)bpop->bpo_subobjs);
492 (void) printf("\t\tnum_subobjs = %llu\n",
493 (u_longlong_t)bpop->bpo_num_subobjs);
494 }
495
496 if (dump_opt['d'] < 5)
497 return;
498
499 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
500 char blkbuf[BP_SPRINTF_LEN];
501 blkptr_t bp;
502
503 int err = dmu_read(os, object,
504 i * sizeof (bp), sizeof (bp), &bp, 0);
505 if (err != 0) {
506 (void) printf("got error %u from dmu_read\n", err);
507 break;
508 }
509 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
510 (void) printf("\t%s\n", blkbuf);
511 }
512 }
513
514 /* ARGSUSED */
515 static void
516 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
517 {
518 dmu_object_info_t doi;
519
520 VERIFY0(dmu_object_info(os, object, &doi));
521 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
522
523 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
524 if (err != 0) {
525 (void) printf("got error %u from dmu_read\n", err);
526 kmem_free(subobjs, doi.doi_max_offset);
527 return;
528 }
529
530 int64_t last_nonzero = -1;
531 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
532 if (subobjs[i] != 0)
533 last_nonzero = i;
534 }
535
536 for (int64_t i = 0; i <= last_nonzero; i++) {
537 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
538 }
539 kmem_free(subobjs, doi.doi_max_offset);
540 }
541
542 /*ARGSUSED*/
543 static void
544 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
545 {
546 dump_zap_stats(os, object);
547 /* contents are printed elsewhere, properly decoded */
548 }
549
550 /*ARGSUSED*/
551 static void
552 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
553 {
554 zap_cursor_t zc;
555 zap_attribute_t attr;
556
557 dump_zap_stats(os, object);
558 (void) printf("\n");
559
560 for (zap_cursor_init(&zc, os, object);
561 zap_cursor_retrieve(&zc, &attr) == 0;
562 zap_cursor_advance(&zc)) {
563 (void) printf("\t\t%s = ", attr.za_name);
564 if (attr.za_num_integers == 0) {
565 (void) printf("\n");
566 continue;
567 }
568 (void) printf(" %llx : [%d:%d:%d]\n",
569 (u_longlong_t)attr.za_first_integer,
570 (int)ATTR_LENGTH(attr.za_first_integer),
571 (int)ATTR_BSWAP(attr.za_first_integer),
572 (int)ATTR_NUM(attr.za_first_integer));
573 }
574 zap_cursor_fini(&zc);
575 }
576
577 /*ARGSUSED*/
578 static void
579 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
580 {
581 zap_cursor_t zc;
582 zap_attribute_t attr;
583 uint16_t *layout_attrs;
584 unsigned i;
585
586 dump_zap_stats(os, object);
587 (void) printf("\n");
588
589 for (zap_cursor_init(&zc, os, object);
590 zap_cursor_retrieve(&zc, &attr) == 0;
591 zap_cursor_advance(&zc)) {
592 (void) printf("\t\t%s = [", attr.za_name);
593 if (attr.za_num_integers == 0) {
594 (void) printf("\n");
595 continue;
596 }
597
598 VERIFY(attr.za_integer_length == 2);
599 layout_attrs = umem_zalloc(attr.za_num_integers *
600 attr.za_integer_length, UMEM_NOFAIL);
601
602 VERIFY(zap_lookup(os, object, attr.za_name,
603 attr.za_integer_length,
604 attr.za_num_integers, layout_attrs) == 0);
605
606 for (i = 0; i != attr.za_num_integers; i++)
607 (void) printf(" %d ", (int)layout_attrs[i]);
608 (void) printf("]\n");
609 umem_free(layout_attrs,
610 attr.za_num_integers * attr.za_integer_length);
611 }
612 zap_cursor_fini(&zc);
613 }
614
615 /*ARGSUSED*/
616 static void
617 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
618 {
619 zap_cursor_t zc;
620 zap_attribute_t attr;
621 const char *typenames[] = {
622 /* 0 */ "not specified",
623 /* 1 */ "FIFO",
624 /* 2 */ "Character Device",
625 /* 3 */ "3 (invalid)",
626 /* 4 */ "Directory",
627 /* 5 */ "5 (invalid)",
628 /* 6 */ "Block Device",
629 /* 7 */ "7 (invalid)",
630 /* 8 */ "Regular File",
631 /* 9 */ "9 (invalid)",
632 /* 10 */ "Symbolic Link",
633 /* 11 */ "11 (invalid)",
634 /* 12 */ "Socket",
635 /* 13 */ "Door",
636 /* 14 */ "Event Port",
637 /* 15 */ "15 (invalid)",
638 };
639
640 dump_zap_stats(os, object);
641 (void) printf("\n");
642
643 for (zap_cursor_init(&zc, os, object);
644 zap_cursor_retrieve(&zc, &attr) == 0;
645 zap_cursor_advance(&zc)) {
646 (void) printf("\t\t%s = %lld (type: %s)\n",
647 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
648 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
649 }
650 zap_cursor_fini(&zc);
651 }
652
653 static int
654 get_dtl_refcount(vdev_t *vd)
655 {
656 int refcount = 0;
657
658 if (vd->vdev_ops->vdev_op_leaf) {
659 space_map_t *sm = vd->vdev_dtl_sm;
660
661 if (sm != NULL &&
662 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
663 return (1);
664 return (0);
665 }
666
667 for (unsigned c = 0; c < vd->vdev_children; c++)
668 refcount += get_dtl_refcount(vd->vdev_child[c]);
669 return (refcount);
670 }
671
672 static int
673 get_metaslab_refcount(vdev_t *vd)
674 {
675 int refcount = 0;
676
677 if (vd->vdev_top == vd) {
678 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
679 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
680
681 if (sm != NULL &&
682 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
683 refcount++;
684 }
685 }
686 for (unsigned c = 0; c < vd->vdev_children; c++)
687 refcount += get_metaslab_refcount(vd->vdev_child[c]);
688
689 return (refcount);
690 }
691
692 static int
693 get_obsolete_refcount(vdev_t *vd)
694 {
695 int refcount = 0;
696
697 uint64_t obsolete_sm_obj = vdev_obsolete_sm_object(vd);
698 if (vd->vdev_top == vd && obsolete_sm_obj != 0) {
699 dmu_object_info_t doi;
700 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset,
701 obsolete_sm_obj, &doi));
702 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
703 refcount++;
704 }
705 } else {
706 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL);
707 ASSERT3U(obsolete_sm_obj, ==, 0);
708 }
709 for (unsigned c = 0; c < vd->vdev_children; c++) {
710 refcount += get_obsolete_refcount(vd->vdev_child[c]);
711 }
712
713 return (refcount);
714 }
715
716 static int
717 get_prev_obsolete_spacemap_refcount(spa_t *spa)
718 {
719 uint64_t prev_obj =
720 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object;
721 if (prev_obj != 0) {
722 dmu_object_info_t doi;
723 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi));
724 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
725 return (1);
726 }
727 }
728 return (0);
729 }
730
731 static int
732 verify_spacemap_refcounts(spa_t *spa)
733 {
734 uint64_t expected_refcount = 0;
735 uint64_t actual_refcount;
736
737 (void) feature_get_refcount(spa,
738 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
739 &expected_refcount);
740 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
741 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
742 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev);
743 actual_refcount += get_prev_obsolete_spacemap_refcount(spa);
744
745 if (expected_refcount != actual_refcount) {
746 (void) printf("space map refcount mismatch: expected %lld != "
747 "actual %lld\n",
748 (longlong_t)expected_refcount,
749 (longlong_t)actual_refcount);
750 return (2);
751 }
752 return (0);
753 }
754
755 static void
756 dump_spacemap(objset_t *os, space_map_t *sm)
757 {
758 uint64_t alloc, offset, entry;
759 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
760 "INVALID", "INVALID", "INVALID", "INVALID" };
761
762 if (sm == NULL)
763 return;
764
765 (void) printf("space map object %llu:\n",
766 (longlong_t)sm->sm_phys->smp_object);
767 (void) printf(" smp_objsize = 0x%llx\n",
768 (longlong_t)sm->sm_phys->smp_objsize);
769 (void) printf(" smp_alloc = 0x%llx\n",
770 (longlong_t)sm->sm_phys->smp_alloc);
771
772 /*
773 * Print out the freelist entries in both encoded and decoded form.
774 */
775 alloc = 0;
776 for (offset = 0; offset < space_map_length(sm);
777 offset += sizeof (entry)) {
778 uint8_t mapshift = sm->sm_shift;
779
780 VERIFY0(dmu_read(os, space_map_object(sm), offset,
781 sizeof (entry), &entry, DMU_READ_PREFETCH));
782 if (SM_DEBUG_DECODE(entry)) {
783
784 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
785 (u_longlong_t)(offset / sizeof (entry)),
786 ddata[SM_DEBUG_ACTION_DECODE(entry)],
787 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
788 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
789 } else {
790 (void) printf("\t [%6llu] %c range:"
791 " %010llx-%010llx size: %06llx\n",
792 (u_longlong_t)(offset / sizeof (entry)),
793 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
794 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
795 mapshift) + sm->sm_start),
796 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
797 mapshift) + sm->sm_start +
798 (SM_RUN_DECODE(entry) << mapshift)),
799 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
800 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
801 alloc += SM_RUN_DECODE(entry) << mapshift;
802 else
803 alloc -= SM_RUN_DECODE(entry) << mapshift;
804 }
805 }
806 if (alloc != space_map_allocated(sm)) {
807 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
808 "with space map summary (%llu)\n",
809 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
810 }
811 }
812
813 static void
814 dump_metaslab_stats(metaslab_t *msp)
815 {
816 char maxbuf[32];
817 range_tree_t *rt = msp->ms_tree;
818 avl_tree_t *t = &msp->ms_size_tree;
819 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
820
821 /* max sure nicenum has enough space */
822 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ);
823
824 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf));
825
826 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
827 "segments", avl_numnodes(t), "maxsize", maxbuf,
828 "freepct", free_pct);
829 (void) printf("\tIn-memory histogram:\n");
830 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
831 }
832
833 static void
834 dump_metaslab(metaslab_t *msp)
835 {
836 vdev_t *vd = msp->ms_group->mg_vd;
837 spa_t *spa = vd->vdev_spa;
838 space_map_t *sm = msp->ms_sm;
839 char freebuf[32];
840
841 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf,
842 sizeof (freebuf));
843
844 (void) printf(
845 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
846 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
847 (u_longlong_t)space_map_object(sm), freebuf);
848
849 if (dump_opt['m'] > 2 && !dump_opt['L']) {
850 mutex_enter(&msp->ms_lock);
851 metaslab_load_wait(msp);
852 if (!msp->ms_loaded) {
853 VERIFY0(metaslab_load(msp));
854 range_tree_stat_verify(msp->ms_tree);
855 }
856 dump_metaslab_stats(msp);
857 metaslab_unload(msp);
858 mutex_exit(&msp->ms_lock);
859 }
860
861 if (dump_opt['m'] > 1 && sm != NULL &&
862 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
863 /*
864 * The space map histogram represents free space in chunks
865 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
866 */
867 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
868 (u_longlong_t)msp->ms_fragmentation);
869 dump_histogram(sm->sm_phys->smp_histogram,
870 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
871 }
872
873 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
874 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
875
876 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
877 }
878 }
879
880 static void
881 print_vdev_metaslab_header(vdev_t *vd)
882 {
883 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
884 (u_longlong_t)vd->vdev_id,
885 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
886 "offset", "spacemap", "free");
887 (void) printf("\t%15s %19s %15s %10s\n",
888 "---------------", "-------------------",
889 "---------------", "-------------");
890 }
891
892 static void
893 dump_metaslab_groups(spa_t *spa)
894 {
895 vdev_t *rvd = spa->spa_root_vdev;
896 metaslab_class_t *mc = spa_normal_class(spa);
897 uint64_t fragmentation;
898
899 metaslab_class_histogram_verify(mc);
900
901 for (unsigned c = 0; c < rvd->vdev_children; c++) {
902 vdev_t *tvd = rvd->vdev_child[c];
903 metaslab_group_t *mg = tvd->vdev_mg;
904
905 if (mg->mg_class != mc)
906 continue;
907
908 metaslab_group_histogram_verify(mg);
909 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
910
911 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
912 "fragmentation",
913 (u_longlong_t)tvd->vdev_id,
914 (u_longlong_t)tvd->vdev_ms_count);
915 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
916 (void) printf("%3s\n", "-");
917 } else {
918 (void) printf("%3llu%%\n",
919 (u_longlong_t)mg->mg_fragmentation);
920 }
921 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
922 }
923
924 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
925 fragmentation = metaslab_class_fragmentation(mc);
926 if (fragmentation == ZFS_FRAG_INVALID)
927 (void) printf("\t%3s\n", "-");
928 else
929 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
930 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
931 }
932
933 static void
934 print_vdev_indirect(vdev_t *vd)
935 {
936 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
937 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
938 vdev_indirect_births_t *vib = vd->vdev_indirect_births;
939
940 if (vim == NULL) {
941 ASSERT3P(vib, ==, NULL);
942 return;
943 }
944
945 ASSERT3U(vdev_indirect_mapping_object(vim), ==,
946 vic->vic_mapping_object);
947 ASSERT3U(vdev_indirect_births_object(vib), ==,
948 vic->vic_births_object);
949
950 (void) printf("indirect births obj %llu:\n",
951 (longlong_t)vic->vic_births_object);
952 (void) printf(" vib_count = %llu\n",
953 (longlong_t)vdev_indirect_births_count(vib));
954 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) {
955 vdev_indirect_birth_entry_phys_t *cur_vibe =
956 &vib->vib_entries[i];
957 (void) printf("\toffset %llx -> txg %llu\n",
958 (longlong_t)cur_vibe->vibe_offset,
959 (longlong_t)cur_vibe->vibe_phys_birth_txg);
960 }
961 (void) printf("\n");
962
963 (void) printf("indirect mapping obj %llu:\n",
964 (longlong_t)vic->vic_mapping_object);
965 (void) printf(" vim_max_offset = 0x%llx\n",
966 (longlong_t)vdev_indirect_mapping_max_offset(vim));
967 (void) printf(" vim_bytes_mapped = 0x%llx\n",
968 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim));
969 (void) printf(" vim_count = %llu\n",
970 (longlong_t)vdev_indirect_mapping_num_entries(vim));
971
972 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3)
973 return;
974
975 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim);
976
977 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
978 vdev_indirect_mapping_entry_phys_t *vimep =
979 &vim->vim_entries[i];
980 (void) printf("\t<%llx:%llx:%llx> -> "
981 "<%llx:%llx:%llx> (%x obsolete)\n",
982 (longlong_t)vd->vdev_id,
983 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
984 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
985 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst),
986 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst),
987 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
988 counts[i]);
989 }
990 (void) printf("\n");
991
992 uint64_t obsolete_sm_object = vdev_obsolete_sm_object(vd);
993 if (obsolete_sm_object != 0) {
994 objset_t *mos = vd->vdev_spa->spa_meta_objset;
995 (void) printf("obsolete space map object %llu:\n",
996 (u_longlong_t)obsolete_sm_object);
997 ASSERT(vd->vdev_obsolete_sm != NULL);
998 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==,
999 obsolete_sm_object);
1000 dump_spacemap(mos, vd->vdev_obsolete_sm);
1001 (void) printf("\n");
1002 }
1003 }
1004
1005 static void
1006 dump_metaslabs(spa_t *spa)
1007 {
1008 vdev_t *vd, *rvd = spa->spa_root_vdev;
1009 uint64_t m, c = 0, children = rvd->vdev_children;
1010
1011 (void) printf("\nMetaslabs:\n");
1012
1013 if (!dump_opt['d'] && zopt_objects > 0) {
1014 c = zopt_object[0];
1015
1016 if (c >= children)
1017 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
1018
1019 if (zopt_objects > 1) {
1020 vd = rvd->vdev_child[c];
1021 print_vdev_metaslab_header(vd);
1022
1023 for (m = 1; m < zopt_objects; m++) {
1024 if (zopt_object[m] < vd->vdev_ms_count)
1025 dump_metaslab(
1026 vd->vdev_ms[zopt_object[m]]);
1027 else
1028 (void) fprintf(stderr, "bad metaslab "
1029 "number %llu\n",
1030 (u_longlong_t)zopt_object[m]);
1031 }
1032 (void) printf("\n");
1033 return;
1034 }
1035 children = c + 1;
1036 }
1037 for (; c < children; c++) {
1038 vd = rvd->vdev_child[c];
1039 print_vdev_metaslab_header(vd);
1040
1041 print_vdev_indirect(vd);
1042
1043 for (m = 0; m < vd->vdev_ms_count; m++)
1044 dump_metaslab(vd->vdev_ms[m]);
1045 (void) printf("\n");
1046 }
1047 }
1048
1049 static void
1050 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
1051 {
1052 const ddt_phys_t *ddp = dde->dde_phys;
1053 const ddt_key_t *ddk = &dde->dde_key;
1054 const char *types[4] = { "ditto", "single", "double", "triple" };
1055 char blkbuf[BP_SPRINTF_LEN];
1056 blkptr_t blk;
1057
1058 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
1059 if (ddp->ddp_phys_birth == 0)
1060 continue;
1061 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
1062 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
1063 (void) printf("index %llx refcnt %llu %s %s\n",
1064 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
1065 types[p], blkbuf);
1066 }
1067 }
1068
1069 static void
1070 dump_dedup_ratio(const ddt_stat_t *dds)
1071 {
1072 double rL, rP, rD, D, dedup, compress, copies;
1073
1074 if (dds->dds_blocks == 0)
1075 return;
1076
1077 rL = (double)dds->dds_ref_lsize;
1078 rP = (double)dds->dds_ref_psize;
1079 rD = (double)dds->dds_ref_dsize;
1080 D = (double)dds->dds_dsize;
1081
1082 dedup = rD / D;
1083 compress = rL / rP;
1084 copies = rD / rP;
1085
1086 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
1087 "dedup * compress / copies = %.2f\n\n",
1088 dedup, compress, copies, dedup * compress / copies);
1089 }
1090
1091 static void
1092 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
1093 {
1094 char name[DDT_NAMELEN];
1095 ddt_entry_t dde;
1096 uint64_t walk = 0;
1097 dmu_object_info_t doi;
1098 uint64_t count, dspace, mspace;
1099 int error;
1100
1101 error = ddt_object_info(ddt, type, class, &doi);
1102
1103 if (error == ENOENT)
1104 return;
1105 ASSERT(error == 0);
1106
1107 if ((count = ddt_object_count(ddt, type, class)) == 0)
1108 return;
1109
1110 dspace = doi.doi_physical_blocks_512 << 9;
1111 mspace = doi.doi_fill_count * doi.doi_data_block_size;
1112
1113 ddt_object_name(ddt, type, class, name);
1114
1115 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
1116 name,
1117 (u_longlong_t)count,
1118 (u_longlong_t)(dspace / count),
1119 (u_longlong_t)(mspace / count));
1120
1121 if (dump_opt['D'] < 3)
1122 return;
1123
1124 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
1125
1126 if (dump_opt['D'] < 4)
1127 return;
1128
1129 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
1130 return;
1131
1132 (void) printf("%s contents:\n\n", name);
1133
1134 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
1135 dump_dde(ddt, &dde, walk);
1136
1137 ASSERT(error == ENOENT);
1138
1139 (void) printf("\n");
1140 }
1141
1142 static void
1143 dump_all_ddts(spa_t *spa)
1144 {
1145 ddt_histogram_t ddh_total;
1146 ddt_stat_t dds_total;
1147
1148 bzero(&ddh_total, sizeof (ddh_total));
1149 bzero(&dds_total, sizeof (dds_total));
1150
1151 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1152 ddt_t *ddt = spa->spa_ddt[c];
1153 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1154 for (enum ddt_class class = 0; class < DDT_CLASSES;
1155 class++) {
1156 dump_ddt(ddt, type, class);
1157 }
1158 }
1159 }
1160
1161 ddt_get_dedup_stats(spa, &dds_total);
1162
1163 if (dds_total.dds_blocks == 0) {
1164 (void) printf("All DDTs are empty\n");
1165 return;
1166 }
1167
1168 (void) printf("\n");
1169
1170 if (dump_opt['D'] > 1) {
1171 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1172 ddt_get_dedup_histogram(spa, &ddh_total);
1173 zpool_dump_ddt(&dds_total, &ddh_total);
1174 }
1175
1176 dump_dedup_ratio(&dds_total);
1177 }
1178
1179 static void
1180 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1181 {
1182 char *prefix = arg;
1183
1184 (void) printf("%s [%llu,%llu) length %llu\n",
1185 prefix,
1186 (u_longlong_t)start,
1187 (u_longlong_t)(start + size),
1188 (u_longlong_t)(size));
1189 }
1190
1191 static void
1192 dump_dtl(vdev_t *vd, int indent)
1193 {
1194 spa_t *spa = vd->vdev_spa;
1195 boolean_t required;
1196 const char *name[DTL_TYPES] = { "missing", "partial", "scrub",
1197 "outage" };
1198 char prefix[256];
1199
1200 spa_vdev_state_enter(spa, SCL_NONE);
1201 required = vdev_dtl_required(vd);
1202 (void) spa_vdev_state_exit(spa, NULL, 0);
1203
1204 if (indent == 0)
1205 (void) printf("\nDirty time logs:\n\n");
1206
1207 (void) printf("\t%*s%s [%s]\n", indent, "",
1208 vd->vdev_path ? vd->vdev_path :
1209 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1210 required ? "DTL-required" : "DTL-expendable");
1211
1212 for (int t = 0; t < DTL_TYPES; t++) {
1213 range_tree_t *rt = vd->vdev_dtl[t];
1214 if (range_tree_space(rt) == 0)
1215 continue;
1216 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1217 indent + 2, "", name[t]);
1218 range_tree_walk(rt, dump_dtl_seg, prefix);
1219 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1220 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1221 }
1222
1223 for (unsigned c = 0; c < vd->vdev_children; c++)
1224 dump_dtl(vd->vdev_child[c], indent + 4);
1225 }
1226
1227 static void
1228 dump_history(spa_t *spa)
1229 {
1230 nvlist_t **events = NULL;
1231 uint64_t resid, len, off = 0;
1232 uint_t num = 0;
1233 int error;
1234 time_t tsec;
1235 struct tm t;
1236 char tbuf[30];
1237 char internalstr[MAXPATHLEN];
1238
1239 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
1240 do {
1241 len = SPA_MAXBLOCKSIZE;
1242
1243 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1244 (void) fprintf(stderr, "Unable to read history: "
1245 "error %d\n", error);
1246 umem_free(buf, SPA_MAXBLOCKSIZE);
1247 return;
1248 }
1249
1250 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1251 break;
1252
1253 off -= resid;
1254 } while (len != 0);
1255 umem_free(buf, SPA_MAXBLOCKSIZE);
1256
1257 (void) printf("\nHistory:\n");
1258 for (unsigned i = 0; i < num; i++) {
1259 uint64_t time, txg, ievent;
1260 char *cmd, *intstr;
1261 boolean_t printed = B_FALSE;
1262
1263 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1264 &time) != 0)
1265 goto next;
1266 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1267 &cmd) != 0) {
1268 if (nvlist_lookup_uint64(events[i],
1269 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1270 goto next;
1271 verify(nvlist_lookup_uint64(events[i],
1272 ZPOOL_HIST_TXG, &txg) == 0);
1273 verify(nvlist_lookup_string(events[i],
1274 ZPOOL_HIST_INT_STR, &intstr) == 0);
1275 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1276 goto next;
1277
1278 (void) snprintf(internalstr,
1279 sizeof (internalstr),
1280 "[internal %s txg:%ju] %s",
1281 zfs_history_event_names[ievent], (uintmax_t)txg,
1282 intstr);
1283 cmd = internalstr;
1284 }
1285 tsec = time;
1286 (void) localtime_r(&tsec, &t);
1287 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1288 (void) printf("%s %s\n", tbuf, cmd);
1289 printed = B_TRUE;
1290
1291 next:
1292 if (dump_opt['h'] > 1) {
1293 if (!printed)
1294 (void) printf("unrecognized record:\n");
1295 dump_nvlist(events[i], 2);
1296 }
1297 }
1298 }
1299
1300 /*ARGSUSED*/
1301 static void
1302 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1303 {
1304 }
1305
1306 static uint64_t
1307 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1308 const zbookmark_phys_t *zb)
1309 {
1310 if (dnp == NULL) {
1311 ASSERT(zb->zb_level < 0);
1312 if (zb->zb_object == 0)
1313 return (zb->zb_blkid);
1314 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1315 }
1316
1317 ASSERT(zb->zb_level >= 0);
1318
1319 return ((zb->zb_blkid <<
1320 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1321 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1322 }
1323
1324 static void
1325 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1326 {
1327 const dva_t *dva = bp->blk_dva;
1328 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1329
1330 if (dump_opt['b'] >= 6) {
1331 snprintf_blkptr(blkbuf, buflen, bp);
1332 return;
1333 }
1334
1335 if (BP_IS_EMBEDDED(bp)) {
1336 (void) sprintf(blkbuf,
1337 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1338 (int)BPE_GET_ETYPE(bp),
1339 (u_longlong_t)BPE_GET_LSIZE(bp),
1340 (u_longlong_t)BPE_GET_PSIZE(bp),
1341 (u_longlong_t)bp->blk_birth);
1342 return;
1343 }
1344
1345 blkbuf[0] = '\0';
1346 for (int i = 0; i < ndvas; i++)
1347 (void) snprintf(blkbuf + strlen(blkbuf),
1348 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1349 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1350 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1351 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1352
1353 if (BP_IS_HOLE(bp)) {
1354 (void) snprintf(blkbuf + strlen(blkbuf),
1355 buflen - strlen(blkbuf),
1356 "%llxL B=%llu",
1357 (u_longlong_t)BP_GET_LSIZE(bp),
1358 (u_longlong_t)bp->blk_birth);
1359 } else {
1360 (void) snprintf(blkbuf + strlen(blkbuf),
1361 buflen - strlen(blkbuf),
1362 "%llxL/%llxP F=%llu B=%llu/%llu",
1363 (u_longlong_t)BP_GET_LSIZE(bp),
1364 (u_longlong_t)BP_GET_PSIZE(bp),
1365 (u_longlong_t)BP_GET_FILL(bp),
1366 (u_longlong_t)bp->blk_birth,
1367 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1368 }
1369 }
1370
1371 static void
1372 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1373 const dnode_phys_t *dnp)
1374 {
1375 char blkbuf[BP_SPRINTF_LEN];
1376 int l;
1377
1378 if (!BP_IS_EMBEDDED(bp)) {
1379 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1380 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1381 }
1382
1383 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1384
1385 ASSERT(zb->zb_level >= 0);
1386
1387 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1388 if (l == zb->zb_level) {
1389 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1390 } else {
1391 (void) printf(" ");
1392 }
1393 }
1394
1395 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1396 (void) printf("%s\n", blkbuf);
1397 }
1398
1399 static int
1400 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1401 blkptr_t *bp, const zbookmark_phys_t *zb)
1402 {
1403 int err = 0;
1404
1405 if (bp->blk_birth == 0)
1406 return (0);
1407
1408 print_indirect(bp, zb, dnp);
1409
1410 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1411 arc_flags_t flags = ARC_FLAG_WAIT;
1412 int i;
1413 blkptr_t *cbp;
1414 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1415 arc_buf_t *buf;
1416 uint64_t fill = 0;
1417
1418 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1419 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1420 if (err)
1421 return (err);
1422 ASSERT(buf->b_data);
1423
1424 /* recursively visit blocks below this */
1425 cbp = buf->b_data;
1426 for (i = 0; i < epb; i++, cbp++) {
1427 zbookmark_phys_t czb;
1428
1429 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1430 zb->zb_level - 1,
1431 zb->zb_blkid * epb + i);
1432 err = visit_indirect(spa, dnp, cbp, &czb);
1433 if (err)
1434 break;
1435 fill += BP_GET_FILL(cbp);
1436 }
1437 if (!err)
1438 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1439 arc_buf_destroy(buf, &buf);
1440 }
1441
1442 return (err);
1443 }
1444
1445 /*ARGSUSED*/
1446 static void
1447 dump_indirect(dnode_t *dn)
1448 {
1449 dnode_phys_t *dnp = dn->dn_phys;
1450 int j;
1451 zbookmark_phys_t czb;
1452
1453 (void) printf("Indirect blocks:\n");
1454
1455 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1456 dn->dn_object, dnp->dn_nlevels - 1, 0);
1457 for (j = 0; j < dnp->dn_nblkptr; j++) {
1458 czb.zb_blkid = j;
1459 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1460 &dnp->dn_blkptr[j], &czb);
1461 }
1462
1463 (void) printf("\n");
1464 }
1465
1466 /*ARGSUSED*/
1467 static void
1468 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1469 {
1470 dsl_dir_phys_t *dd = data;
1471 time_t crtime;
1472 char nice[32];
1473
1474 /* make sure nicenum has enough space */
1475 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ);
1476
1477 if (dd == NULL)
1478 return;
1479
1480 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1481
1482 crtime = dd->dd_creation_time;
1483 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1484 (void) printf("\t\thead_dataset_obj = %llu\n",
1485 (u_longlong_t)dd->dd_head_dataset_obj);
1486 (void) printf("\t\tparent_dir_obj = %llu\n",
1487 (u_longlong_t)dd->dd_parent_obj);
1488 (void) printf("\t\torigin_obj = %llu\n",
1489 (u_longlong_t)dd->dd_origin_obj);
1490 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1491 (u_longlong_t)dd->dd_child_dir_zapobj);
1492 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice));
1493 (void) printf("\t\tused_bytes = %s\n", nice);
1494 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice));
1495 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1496 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice));
1497 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1498 zdb_nicenum(dd->dd_quota, nice, sizeof (nice));
1499 (void) printf("\t\tquota = %s\n", nice);
1500 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice));
1501 (void) printf("\t\treserved = %s\n", nice);
1502 (void) printf("\t\tprops_zapobj = %llu\n",
1503 (u_longlong_t)dd->dd_props_zapobj);
1504 (void) printf("\t\tdeleg_zapobj = %llu\n",
1505 (u_longlong_t)dd->dd_deleg_zapobj);
1506 (void) printf("\t\tflags = %llx\n",
1507 (u_longlong_t)dd->dd_flags);
1508
1509 #define DO(which) \
1510 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \
1511 sizeof (nice)); \
1512 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1513 DO(HEAD);
1514 DO(SNAP);
1515 DO(CHILD);
1516 DO(CHILD_RSRV);
1517 DO(REFRSRV);
1518 #undef DO
1519 }
1520
1521 /*ARGSUSED*/
1522 static void
1523 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1524 {
1525 dsl_dataset_phys_t *ds = data;
1526 time_t crtime;
1527 char used[32], compressed[32], uncompressed[32], unique[32];
1528 char blkbuf[BP_SPRINTF_LEN];
1529
1530 /* make sure nicenum has enough space */
1531 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ);
1532 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ);
1533 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ);
1534 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ);
1535
1536 if (ds == NULL)
1537 return;
1538
1539 ASSERT(size == sizeof (*ds));
1540 crtime = ds->ds_creation_time;
1541 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used));
1542 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed));
1543 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed,
1544 sizeof (uncompressed));
1545 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique));
1546 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1547
1548 (void) printf("\t\tdir_obj = %llu\n",
1549 (u_longlong_t)ds->ds_dir_obj);
1550 (void) printf("\t\tprev_snap_obj = %llu\n",
1551 (u_longlong_t)ds->ds_prev_snap_obj);
1552 (void) printf("\t\tprev_snap_txg = %llu\n",
1553 (u_longlong_t)ds->ds_prev_snap_txg);
1554 (void) printf("\t\tnext_snap_obj = %llu\n",
1555 (u_longlong_t)ds->ds_next_snap_obj);
1556 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1557 (u_longlong_t)ds->ds_snapnames_zapobj);
1558 (void) printf("\t\tnum_children = %llu\n",
1559 (u_longlong_t)ds->ds_num_children);
1560 (void) printf("\t\tuserrefs_obj = %llu\n",
1561 (u_longlong_t)ds->ds_userrefs_obj);
1562 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1563 (void) printf("\t\tcreation_txg = %llu\n",
1564 (u_longlong_t)ds->ds_creation_txg);
1565 (void) printf("\t\tdeadlist_obj = %llu\n",
1566 (u_longlong_t)ds->ds_deadlist_obj);
1567 (void) printf("\t\tused_bytes = %s\n", used);
1568 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1569 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1570 (void) printf("\t\tunique = %s\n", unique);
1571 (void) printf("\t\tfsid_guid = %llu\n",
1572 (u_longlong_t)ds->ds_fsid_guid);
1573 (void) printf("\t\tguid = %llu\n",
1574 (u_longlong_t)ds->ds_guid);
1575 (void) printf("\t\tflags = %llx\n",
1576 (u_longlong_t)ds->ds_flags);
1577 (void) printf("\t\tnext_clones_obj = %llu\n",
1578 (u_longlong_t)ds->ds_next_clones_obj);
1579 (void) printf("\t\tprops_obj = %llu\n",
1580 (u_longlong_t)ds->ds_props_obj);
1581 (void) printf("\t\tbp = %s\n", blkbuf);
1582 }
1583
1584 /* ARGSUSED */
1585 static int
1586 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1587 {
1588 char blkbuf[BP_SPRINTF_LEN];
1589
1590 if (bp->blk_birth != 0) {
1591 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1592 (void) printf("\t%s\n", blkbuf);
1593 }
1594 return (0);
1595 }
1596
1597 static void
1598 dump_bptree(objset_t *os, uint64_t obj, const char *name)
1599 {
1600 char bytes[32];
1601 bptree_phys_t *bt;
1602 dmu_buf_t *db;
1603
1604 /* make sure nicenum has enough space */
1605 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1606
1607 if (dump_opt['d'] < 3)
1608 return;
1609
1610 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1611 bt = db->db_data;
1612 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes));
1613 (void) printf("\n %s: %llu datasets, %s\n",
1614 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1615 dmu_buf_rele(db, FTAG);
1616
1617 if (dump_opt['d'] < 5)
1618 return;
1619
1620 (void) printf("\n");
1621
1622 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1623 }
1624
1625 /* ARGSUSED */
1626 static int
1627 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1628 {
1629 char blkbuf[BP_SPRINTF_LEN];
1630
1631 ASSERT(bp->blk_birth != 0);
1632 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1633 (void) printf("\t%s\n", blkbuf);
1634 return (0);
1635 }
1636
1637 static void
1638 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent)
1639 {
1640 char bytes[32];
1641 char comp[32];
1642 char uncomp[32];
1643
1644 /* make sure nicenum has enough space */
1645 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1646 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1647 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1648
1649 if (dump_opt['d'] < 3)
1650 return;
1651
1652 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes));
1653 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1654 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp));
1655 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp));
1656 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1657 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1658 indent * 8, name,
1659 (u_longlong_t)bpo->bpo_object,
1660 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1661 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1662 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1663 bytes, comp, uncomp);
1664
1665 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1666 uint64_t subobj;
1667 bpobj_t subbpo;
1668 int error;
1669 VERIFY0(dmu_read(bpo->bpo_os,
1670 bpo->bpo_phys->bpo_subobjs,
1671 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1672 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1673 if (error != 0) {
1674 (void) printf("ERROR %u while trying to open "
1675 "subobj id %llu\n",
1676 error, (u_longlong_t)subobj);
1677 continue;
1678 }
1679 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1680 bpobj_close(&subbpo);
1681 }
1682 } else {
1683 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1684 indent * 8, name,
1685 (u_longlong_t)bpo->bpo_object,
1686 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1687 bytes);
1688 }
1689
1690 if (dump_opt['d'] < 5)
1691 return;
1692
1693
1694 if (indent == 0) {
1695 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1696 (void) printf("\n");
1697 }
1698 }
1699
1700 static void
1701 dump_deadlist(dsl_deadlist_t *dl)
1702 {
1703 dsl_deadlist_entry_t *dle;
1704 uint64_t unused;
1705 char bytes[32];
1706 char comp[32];
1707 char uncomp[32];
1708
1709 /* make sure nicenum has enough space */
1710 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1711 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1712 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1713
1714 if (dump_opt['d'] < 3)
1715 return;
1716
1717 if (dl->dl_oldfmt) {
1718 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1719 return;
1720 }
1721
1722 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes));
1723 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp));
1724 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp));
1725 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1726 bytes, comp, uncomp);
1727
1728 if (dump_opt['d'] < 4)
1729 return;
1730
1731 (void) printf("\n");
1732
1733 /* force the tree to be loaded */
1734 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1735
1736 for (dle = avl_first(&dl->dl_tree); dle;
1737 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1738 if (dump_opt['d'] >= 5) {
1739 char buf[128];
1740 (void) snprintf(buf, sizeof (buf),
1741 "mintxg %llu -> obj %llu",
1742 (longlong_t)dle->dle_mintxg,
1743 (longlong_t)dle->dle_bpobj.bpo_object);
1744
1745 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1746 } else {
1747 (void) printf("mintxg %llu -> obj %llu\n",
1748 (longlong_t)dle->dle_mintxg,
1749 (longlong_t)dle->dle_bpobj.bpo_object);
1750
1751 }
1752 }
1753 }
1754
1755 static avl_tree_t idx_tree;
1756 static avl_tree_t domain_tree;
1757 static boolean_t fuid_table_loaded;
1758 static objset_t *sa_os = NULL;
1759 static sa_attr_type_t *sa_attr_table = NULL;
1760
1761 static int
1762 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1763 {
1764 int err;
1765 uint64_t sa_attrs = 0;
1766 uint64_t version = 0;
1767
1768 VERIFY3P(sa_os, ==, NULL);
1769 err = dmu_objset_own(path, type, B_TRUE, tag, osp);
1770 if (err != 0) {
1771 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1772 strerror(err));
1773 return (err);
1774 }
1775
1776 if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
1777 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1778 8, 1, &version);
1779 if (version >= ZPL_VERSION_SA) {
1780 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1781 8, 1, &sa_attrs);
1782 }
1783 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1784 &sa_attr_table);
1785 if (err != 0) {
1786 (void) fprintf(stderr, "sa_setup failed: %s\n",
1787 strerror(err));
1788 dmu_objset_disown(*osp, tag);
1789 *osp = NULL;
1790 }
1791 }
1792 sa_os = *osp;
1793
1794 return (0);
1795 }
1796
1797 static void
1798 close_objset(objset_t *os, void *tag)
1799 {
1800 VERIFY3P(os, ==, sa_os);
1801 if (os->os_sa != NULL)
1802 sa_tear_down(os);
1803 dmu_objset_disown(os, tag);
1804 sa_attr_table = NULL;
1805 sa_os = NULL;
1806 }
1807
1808 static void
1809 fuid_table_destroy()
1810 {
1811 if (fuid_table_loaded) {
1812 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1813 fuid_table_loaded = B_FALSE;
1814 }
1815 }
1816
1817 /*
1818 * print uid or gid information.
1819 * For normal POSIX id just the id is printed in decimal format.
1820 * For CIFS files with FUID the fuid is printed in hex followed by
1821 * the domain-rid string.
1822 */
1823 static void
1824 print_idstr(uint64_t id, const char *id_type)
1825 {
1826 if (FUID_INDEX(id)) {
1827 char *domain;
1828
1829 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1830 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1831 (u_longlong_t)id, domain, (int)FUID_RID(id));
1832 } else {
1833 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1834 }
1835
1836 }
1837
1838 static void
1839 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1840 {
1841 uint32_t uid_idx, gid_idx;
1842
1843 uid_idx = FUID_INDEX(uid);
1844 gid_idx = FUID_INDEX(gid);
1845
1846 /* Load domain table, if not already loaded */
1847 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1848 uint64_t fuid_obj;
1849
1850 /* first find the fuid object. It lives in the master node */
1851 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1852 8, 1, &fuid_obj) == 0);
1853 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1854 (void) zfs_fuid_table_load(os, fuid_obj,
1855 &idx_tree, &domain_tree);
1856 fuid_table_loaded = B_TRUE;
1857 }
1858
1859 print_idstr(uid, "uid");
1860 print_idstr(gid, "gid");
1861 }
1862
1863 /*ARGSUSED*/
1864 static void
1865 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1866 {
1867 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1868 sa_handle_t *hdl;
1869 uint64_t xattr, rdev, gen;
1870 uint64_t uid, gid, mode, fsize, parent, links;
1871 uint64_t pflags;
1872 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1873 time_t z_crtime, z_atime, z_mtime, z_ctime;
1874 sa_bulk_attr_t bulk[12];
1875 int idx = 0;
1876 int error;
1877
1878 VERIFY3P(os, ==, sa_os);
1879 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1880 (void) printf("Failed to get handle for SA znode\n");
1881 return;
1882 }
1883
1884 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1885 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1886 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1887 &links, 8);
1888 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1889 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1890 &mode, 8);
1891 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1892 NULL, &parent, 8);
1893 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1894 &fsize, 8);
1895 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1896 acctm, 16);
1897 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1898 modtm, 16);
1899 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1900 crtm, 16);
1901 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1902 chgtm, 16);
1903 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1904 &pflags, 8);
1905
1906 if (sa_bulk_lookup(hdl, bulk, idx)) {
1907 (void) sa_handle_destroy(hdl);
1908 return;
1909 }
1910
1911 z_crtime = (time_t)crtm[0];
1912 z_atime = (time_t)acctm[0];
1913 z_mtime = (time_t)modtm[0];
1914 z_ctime = (time_t)chgtm[0];
1915
1916 if (dump_opt['d'] > 4) {
1917 error = zfs_obj_to_path(os, object, path, sizeof (path));
1918 if (error != 0) {
1919 (void) snprintf(path, sizeof (path),
1920 "\?\?\?<object#%llu>", (u_longlong_t)object);
1921 }
1922 (void) printf("\tpath %s\n", path);
1923 }
1924 dump_uidgid(os, uid, gid);
1925 (void) printf("\tatime %s", ctime(&z_atime));
1926 (void) printf("\tmtime %s", ctime(&z_mtime));
1927 (void) printf("\tctime %s", ctime(&z_ctime));
1928 (void) printf("\tcrtime %s", ctime(&z_crtime));
1929 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1930 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1931 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1932 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1933 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1934 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1935 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1936 sizeof (uint64_t)) == 0)
1937 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1938 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1939 sizeof (uint64_t)) == 0)
1940 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1941 sa_handle_destroy(hdl);
1942 }
1943
1944 /*ARGSUSED*/
1945 static void
1946 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1947 {
1948 }
1949
1950 /*ARGSUSED*/
1951 static void
1952 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1953 {
1954 }
1955
1956 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1957 dump_none, /* unallocated */
1958 dump_zap, /* object directory */
1959 dump_uint64, /* object array */
1960 dump_none, /* packed nvlist */
1961 dump_packed_nvlist, /* packed nvlist size */
1962 dump_none, /* bpobj */
1963 dump_bpobj, /* bpobj header */
1964 dump_none, /* SPA space map header */
1965 dump_none, /* SPA space map */
1966 dump_none, /* ZIL intent log */
1967 dump_dnode, /* DMU dnode */
1968 dump_dmu_objset, /* DMU objset */
1969 dump_dsl_dir, /* DSL directory */
1970 dump_zap, /* DSL directory child map */
1971 dump_zap, /* DSL dataset snap map */
1972 dump_zap, /* DSL props */
1973 dump_dsl_dataset, /* DSL dataset */
1974 dump_znode, /* ZFS znode */
1975 dump_acl, /* ZFS V0 ACL */
1976 dump_uint8, /* ZFS plain file */
1977 dump_zpldir, /* ZFS directory */
1978 dump_zap, /* ZFS master node */
1979 dump_zap, /* ZFS delete queue */
1980 dump_uint8, /* zvol object */
1981 dump_zap, /* zvol prop */
1982 dump_uint8, /* other uint8[] */
1983 dump_uint64, /* other uint64[] */
1984 dump_zap, /* other ZAP */
1985 dump_zap, /* persistent error log */
1986 dump_uint8, /* SPA history */
1987 dump_history_offsets, /* SPA history offsets */
1988 dump_zap, /* Pool properties */
1989 dump_zap, /* DSL permissions */
1990 dump_acl, /* ZFS ACL */
1991 dump_uint8, /* ZFS SYSACL */
1992 dump_none, /* FUID nvlist */
1993 dump_packed_nvlist, /* FUID nvlist size */
1994 dump_zap, /* DSL dataset next clones */
1995 dump_zap, /* DSL scrub queue */
1996 dump_zap, /* ZFS user/group used */
1997 dump_zap, /* ZFS user/group quota */
1998 dump_zap, /* snapshot refcount tags */
1999 dump_ddt_zap, /* DDT ZAP object */
2000 dump_zap, /* DDT statistics */
2001 dump_znode, /* SA object */
2002 dump_zap, /* SA Master Node */
2003 dump_sa_attrs, /* SA attribute registration */
2004 dump_sa_layouts, /* SA attribute layouts */
2005 dump_zap, /* DSL scrub translations */
2006 dump_none, /* fake dedup BP */
2007 dump_zap, /* deadlist */
2008 dump_none, /* deadlist hdr */
2009 dump_zap, /* dsl clones */
2010 dump_bpobj_subobjs, /* bpobj subobjs */
2011 dump_unknown, /* Unknown type, must be last */
2012 };
2013
2014 static void
2015 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
2016 {
2017 dmu_buf_t *db = NULL;
2018 dmu_object_info_t doi;
2019 dnode_t *dn;
2020 void *bonus = NULL;
2021 size_t bsize = 0;
2022 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
2023 char bonus_size[32];
2024 char aux[50];
2025 int error;
2026
2027 /* make sure nicenum has enough space */
2028 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ);
2029 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ);
2030 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
2031 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
2032 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
2033
2034 if (*print_header) {
2035 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
2036 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
2037 "%full", "type");
2038 *print_header = 0;
2039 }
2040
2041 if (object == 0) {
2042 dn = DMU_META_DNODE(os);
2043 } else {
2044 error = dmu_bonus_hold(os, object, FTAG, &db);
2045 if (error)
2046 fatal("dmu_bonus_hold(%llu) failed, errno %u",
2047 object, error);
2048 bonus = db->db_data;
2049 bsize = db->db_size;
2050 dn = DB_DNODE((dmu_buf_impl_t *)db);
2051 }
2052 dmu_object_info_from_dnode(dn, &doi);
2053
2054 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
2055 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
2056 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
2057 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
2058 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
2059 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
2060 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
2061 doi.doi_max_offset);
2062
2063 aux[0] = '\0';
2064
2065 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
2066 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
2067 ZDB_CHECKSUM_NAME(doi.doi_checksum));
2068 }
2069
2070 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
2071 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
2072 ZDB_COMPRESS_NAME(doi.doi_compress));
2073 }
2074
2075 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
2076 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
2077 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
2078
2079 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
2080 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
2081 "", "", "", "", "", bonus_size, "bonus",
2082 ZDB_OT_NAME(doi.doi_bonus_type));
2083 }
2084
2085 if (verbosity >= 4) {
2086 (void) printf("\tdnode flags: %s%s%s\n",
2087 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
2088 "USED_BYTES " : "",
2089 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
2090 "USERUSED_ACCOUNTED " : "",
2091 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
2092 "SPILL_BLKPTR" : "");
2093 (void) printf("\tdnode maxblkid: %llu\n",
2094 (longlong_t)dn->dn_phys->dn_maxblkid);
2095
2096 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
2097 bonus, bsize);
2098 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
2099 *print_header = 1;
2100 }
2101
2102 if (verbosity >= 5)
2103 dump_indirect(dn);
2104
2105 if (verbosity >= 5) {
2106 /*
2107 * Report the list of segments that comprise the object.
2108 */
2109 uint64_t start = 0;
2110 uint64_t end;
2111 uint64_t blkfill = 1;
2112 int minlvl = 1;
2113
2114 if (dn->dn_type == DMU_OT_DNODE) {
2115 minlvl = 0;
2116 blkfill = DNODES_PER_BLOCK;
2117 }
2118
2119 for (;;) {
2120 char segsize[32];
2121 /* make sure nicenum has enough space */
2122 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ);
2123 error = dnode_next_offset(dn,
2124 0, &start, minlvl, blkfill, 0);
2125 if (error)
2126 break;
2127 end = start;
2128 error = dnode_next_offset(dn,
2129 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
2130 zdb_nicenum(end - start, segsize, sizeof (segsize));
2131 (void) printf("\t\tsegment [%016llx, %016llx)"
2132 " size %5s\n", (u_longlong_t)start,
2133 (u_longlong_t)end, segsize);
2134 if (error)
2135 break;
2136 start = end;
2137 }
2138 }
2139
2140 if (db != NULL)
2141 dmu_buf_rele(db, FTAG);
2142 }
2143
2144 static const char *objset_types[DMU_OST_NUMTYPES] = {
2145 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
2146
2147 static void
2148 dump_dir(objset_t *os)
2149 {
2150 dmu_objset_stats_t dds;
2151 uint64_t object, object_count;
2152 uint64_t refdbytes, usedobjs, scratch;
2153 char numbuf[32];
2154 char blkbuf[BP_SPRINTF_LEN + 20];
2155 char osname[ZFS_MAX_DATASET_NAME_LEN];
2156 const char *type = "UNKNOWN";
2157 int verbosity = dump_opt['d'];
2158 int print_header = 1;
2159 unsigned i;
2160 int error;
2161
2162 /* make sure nicenum has enough space */
2163 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
2164
2165 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
2166 dmu_objset_fast_stat(os, &dds);
2167 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
2168
2169 if (dds.dds_type < DMU_OST_NUMTYPES)
2170 type = objset_types[dds.dds_type];
2171
2172 if (dds.dds_type == DMU_OST_META) {
2173 dds.dds_creation_txg = TXG_INITIAL;
2174 usedobjs = BP_GET_FILL(os->os_rootbp);
2175 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
2176 dd_used_bytes;
2177 } else {
2178 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
2179 }
2180
2181 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
2182
2183 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf));
2184
2185 if (verbosity >= 4) {
2186 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
2187 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2188 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2189 } else {
2190 blkbuf[0] = '\0';
2191 }
2192
2193 dmu_objset_name(os, osname);
2194
2195 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2196 "%s, %llu objects%s\n",
2197 osname, type, (u_longlong_t)dmu_objset_id(os),
2198 (u_longlong_t)dds.dds_creation_txg,
2199 numbuf, (u_longlong_t)usedobjs, blkbuf);
2200
2201 if (zopt_objects != 0) {
2202 for (i = 0; i < zopt_objects; i++)
2203 dump_object(os, zopt_object[i], verbosity,
2204 &print_header);
2205 (void) printf("\n");
2206 return;
2207 }
2208
2209 if (dump_opt['i'] != 0 || verbosity >= 2)
2210 dump_intent_log(dmu_objset_zil(os));
2211
2212 if (dmu_objset_ds(os) != NULL) {
2213 dsl_dataset_t *ds = dmu_objset_ds(os);
2214 dump_deadlist(&ds->ds_deadlist);
2215
2216 if (dsl_dataset_remap_deadlist_exists(ds)) {
2217 (void) printf("ds_remap_deadlist:\n");
2218 dump_deadlist(&ds->ds_remap_deadlist);
2219 }
2220 }
2221
2222 if (verbosity < 2)
2223 return;
2224
2225 if (BP_IS_HOLE(os->os_rootbp))
2226 return;
2227
2228 dump_object(os, 0, verbosity, &print_header);
2229 object_count = 0;
2230 if (DMU_USERUSED_DNODE(os) != NULL &&
2231 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2232 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2233 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2234 }
2235
2236 object = 0;
2237 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2238 dump_object(os, object, verbosity, &print_header);
2239 object_count++;
2240 }
2241
2242 ASSERT3U(object_count, ==, usedobjs);
2243
2244 (void) printf("\n");
2245
2246 if (error != ESRCH) {
2247 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2248 abort();
2249 }
2250 }
2251
2252 static void
2253 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2254 {
2255 time_t timestamp = ub->ub_timestamp;
2256
2257 (void) printf("%s", header ? header : "");
2258 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2259 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2260 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2261 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2262 (void) printf("\ttimestamp = %llu UTC = %s",
2263 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
2264 if (dump_opt['u'] >= 3) {
2265 char blkbuf[BP_SPRINTF_LEN];
2266 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2267 (void) printf("\trootbp = %s\n", blkbuf);
2268 }
2269 (void) printf("%s", footer ? footer : "");
2270 }
2271
2272 static void
2273 dump_config(spa_t *spa)
2274 {
2275 dmu_buf_t *db;
2276 size_t nvsize = 0;
2277 int error = 0;
2278
2279
2280 error = dmu_bonus_hold(spa->spa_meta_objset,
2281 spa->spa_config_object, FTAG, &db);
2282
2283 if (error == 0) {
2284 nvsize = *(uint64_t *)db->db_data;
2285 dmu_buf_rele(db, FTAG);
2286
2287 (void) printf("\nMOS Configuration:\n");
2288 dump_packed_nvlist(spa->spa_meta_objset,
2289 spa->spa_config_object, (void *)&nvsize, 1);
2290 } else {
2291 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2292 (u_longlong_t)spa->spa_config_object, error);
2293 }
2294 }
2295
2296 static void
2297 dump_cachefile(const char *cachefile)
2298 {
2299 int fd;
2300 struct stat64 statbuf;
2301 char *buf;
2302 nvlist_t *config;
2303
2304 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2305 (void) printf("cannot open '%s': %s\n", cachefile,
2306 strerror(errno));
2307 exit(1);
2308 }
2309
2310 if (fstat64(fd, &statbuf) != 0) {
2311 (void) printf("failed to stat '%s': %s\n", cachefile,
2312 strerror(errno));
2313 exit(1);
2314 }
2315
2316 if ((buf = malloc(statbuf.st_size)) == NULL) {
2317 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2318 (u_longlong_t)statbuf.st_size);
2319 exit(1);
2320 }
2321
2322 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2323 (void) fprintf(stderr, "failed to read %llu bytes\n",
2324 (u_longlong_t)statbuf.st_size);
2325 exit(1);
2326 }
2327
2328 (void) close(fd);
2329
2330 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2331 (void) fprintf(stderr, "failed to unpack nvlist\n");
2332 exit(1);
2333 }
2334
2335 free(buf);
2336
2337 dump_nvlist(config, 0);
2338
2339 nvlist_free(config);
2340 }
2341
2342 #define ZDB_MAX_UB_HEADER_SIZE 32
2343
2344 static void
2345 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2346 {
2347 vdev_t vd;
2348 vdev_t *vdp = &vd;
2349 char header[ZDB_MAX_UB_HEADER_SIZE];
2350
2351 vd.vdev_ashift = ashift;
2352 vdp->vdev_top = vdp;
2353
2354 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2355 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2356 uberblock_t *ub = (void *)((char *)lbl + uoff);
2357
2358 if (uberblock_verify(ub))
2359 continue;
2360 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2361 "Uberblock[%d]\n", i);
2362 dump_uberblock(ub, header, "");
2363 }
2364 }
2365
2366 static char curpath[PATH_MAX];
2367
2368 /*
2369 * Iterate through the path components, recursively passing
2370 * current one's obj and remaining path until we find the obj
2371 * for the last one.
2372 */
2373 static int
2374 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2375 {
2376 int err;
2377 int header = 1;
2378 uint64_t child_obj;
2379 char *s;
2380 dmu_buf_t *db;
2381 dmu_object_info_t doi;
2382
2383 if ((s = strchr(name, '/')) != NULL)
2384 *s = '\0';
2385 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2386
2387 (void) strlcat(curpath, name, sizeof (curpath));
2388
2389 if (err != 0) {
2390 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2391 curpath, strerror(err));
2392 return (err);
2393 }
2394
2395 child_obj = ZFS_DIRENT_OBJ(child_obj);
2396 err = sa_buf_hold(os, child_obj, FTAG, &db);
2397 if (err != 0) {
2398 (void) fprintf(stderr,
2399 "failed to get SA dbuf for obj %llu: %s\n",
2400 (u_longlong_t)child_obj, strerror(err));
2401 return (EINVAL);
2402 }
2403 dmu_object_info_from_db(db, &doi);
2404 sa_buf_rele(db, FTAG);
2405
2406 if (doi.doi_bonus_type != DMU_OT_SA &&
2407 doi.doi_bonus_type != DMU_OT_ZNODE) {
2408 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2409 doi.doi_bonus_type, (u_longlong_t)child_obj);
2410 return (EINVAL);
2411 }
2412
2413 if (dump_opt['v'] > 6) {
2414 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2415 (u_longlong_t)child_obj, curpath, doi.doi_type,
2416 doi.doi_bonus_type);
2417 }
2418
2419 (void) strlcat(curpath, "/", sizeof (curpath));
2420
2421 switch (doi.doi_type) {
2422 case DMU_OT_DIRECTORY_CONTENTS:
2423 if (s != NULL && *(s + 1) != '\0')
2424 return (dump_path_impl(os, child_obj, s + 1));
2425 /*FALLTHROUGH*/
2426 case DMU_OT_PLAIN_FILE_CONTENTS:
2427 dump_object(os, child_obj, dump_opt['v'], &header);
2428 return (0);
2429 default:
2430 (void) fprintf(stderr, "object %llu has non-file/directory "
2431 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2432 break;
2433 }
2434
2435 return (EINVAL);
2436 }
2437
2438 /*
2439 * Dump the blocks for the object specified by path inside the dataset.
2440 */
2441 static int
2442 dump_path(char *ds, char *path)
2443 {
2444 int err;
2445 objset_t *os;
2446 uint64_t root_obj;
2447
2448 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2449 if (err != 0)
2450 return (err);
2451
2452 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2453 if (err != 0) {
2454 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2455 strerror(err));
2456 dmu_objset_disown(os, FTAG);
2457 return (EINVAL);
2458 }
2459
2460 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2461
2462 err = dump_path_impl(os, root_obj, path);
2463
2464 close_objset(os, FTAG);
2465 return (err);
2466 }
2467
2468 static int
2469 dump_label(const char *dev)
2470 {
2471 int fd;
2472 vdev_label_t label;
2473 char path[MAXPATHLEN];
2474 char *buf = label.vl_vdev_phys.vp_nvlist;
2475 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2476 struct stat64 statbuf;
2477 uint64_t psize, ashift;
2478 boolean_t label_found = B_FALSE;
2479
2480 (void) strlcpy(path, dev, sizeof (path));
2481 if (dev[0] == '/') {
2482 if (strncmp(dev, ZFS_DISK_ROOTD,
2483 strlen(ZFS_DISK_ROOTD)) == 0) {
2484 (void) snprintf(path, sizeof (path), "%s%s",
2485 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD));
2486 }
2487 } else if (stat64(path, &statbuf) != 0) {
2488 char *s;
2489
2490 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD,
2491 dev);
2492 if (((s = strrchr(dev, 's')) == NULL &&
2493 (s = strchr(dev, 'p')) == NULL) ||
2494 !isdigit(*(s + 1)))
2495 (void) strlcat(path, "s0", sizeof (path));
2496 }
2497
2498 if ((fd = open64(path, O_RDONLY)) < 0) {
2499 (void) fprintf(stderr, "cannot open '%s': %s\n", path,
2500 strerror(errno));
2501 exit(1);
2502 }
2503
2504 if (fstat64(fd, &statbuf) != 0) {
2505 (void) fprintf(stderr, "failed to stat '%s': %s\n", path,
2506 strerror(errno));
2507 (void) close(fd);
2508 exit(1);
2509 }
2510
2511 if (S_ISBLK(statbuf.st_mode)) {
2512 (void) fprintf(stderr,
2513 "cannot use '%s': character device required\n", path);
2514 (void) close(fd);
2515 exit(1);
2516 }
2517
2518 psize = statbuf.st_size;
2519 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2520
2521 for (int l = 0; l < VDEV_LABELS; l++) {
2522 nvlist_t *config = NULL;
2523
2524 if (!dump_opt['q']) {
2525 (void) printf("------------------------------------\n");
2526 (void) printf("LABEL %d\n", l);
2527 (void) printf("------------------------------------\n");
2528 }
2529
2530 if (pread64(fd, &label, sizeof (label),
2531 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2532 if (!dump_opt['q'])
2533 (void) printf("failed to read label %d\n", l);
2534 continue;
2535 }
2536
2537 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2538 if (!dump_opt['q'])
2539 (void) printf("failed to unpack label %d\n", l);
2540 ashift = SPA_MINBLOCKSHIFT;
2541 } else {
2542 nvlist_t *vdev_tree = NULL;
2543
2544 if (!dump_opt['q'])
2545 dump_nvlist(config, 4);
2546 if ((nvlist_lookup_nvlist(config,
2547 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2548 (nvlist_lookup_uint64(vdev_tree,
2549 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2550 ashift = SPA_MINBLOCKSHIFT;
2551 nvlist_free(config);
2552 label_found = B_TRUE;
2553 }
2554 if (dump_opt['u'])
2555 dump_label_uberblocks(&label, ashift);
2556 }
2557
2558 (void) close(fd);
2559
2560 return (label_found ? 0 : 2);
2561 }
2562
2563 static uint64_t dataset_feature_count[SPA_FEATURES];
2564 static uint64_t remap_deadlist_count = 0;
2565
2566 /*ARGSUSED*/
2567 static int
2568 dump_one_dir(const char *dsname, void *arg)
2569 {
2570 int error;
2571 objset_t *os;
2572
2573 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
2574 if (error != 0)
2575 return (0);
2576
2577 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2578 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2579 continue;
2580 ASSERT(spa_feature_table[f].fi_flags &
2581 ZFEATURE_FLAG_PER_DATASET);
2582 dataset_feature_count[f]++;
2583 }
2584
2585 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) {
2586 remap_deadlist_count++;
2587 }
2588
2589 dump_dir(os);
2590 close_objset(os, FTAG);
2591 fuid_table_destroy();
2592 return (0);
2593 }
2594
2595 /*
2596 * Block statistics.
2597 */
2598 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2599 typedef struct zdb_blkstats {
2600 uint64_t zb_asize;
2601 uint64_t zb_lsize;
2602 uint64_t zb_psize;
2603 uint64_t zb_count;
2604 uint64_t zb_gangs;
2605 uint64_t zb_ditto_samevdev;
2606 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2607 } zdb_blkstats_t;
2608
2609 /*
2610 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2611 */
2612 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2613 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2614 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2615 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2616
2617 static const char *zdb_ot_extname[] = {
2618 "deferred free",
2619 "dedup ditto",
2620 "other",
2621 "Total",
2622 };
2623
2624 #define ZB_TOTAL DN_MAX_LEVELS
2625
2626 typedef struct zdb_cb {
2627 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2628 uint64_t zcb_removing_size;
2629 uint64_t zcb_dedup_asize;
2630 uint64_t zcb_dedup_blocks;
2631 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2632 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2633 [BPE_PAYLOAD_SIZE];
2634 uint64_t zcb_start;
2635 hrtime_t zcb_lastprint;
2636 uint64_t zcb_totalasize;
2637 uint64_t zcb_errors[256];
2638 int zcb_readfails;
2639 int zcb_haderrors;
2640 spa_t *zcb_spa;
2641 uint32_t **zcb_vd_obsolete_counts;
2642 } zdb_cb_t;
2643
2644 static void
2645 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2646 dmu_object_type_t type)
2647 {
2648 uint64_t refcnt = 0;
2649
2650 ASSERT(type < ZDB_OT_TOTAL);
2651
2652 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2653 return;
2654
2655 for (int i = 0; i < 4; i++) {
2656 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2657 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2658 int equal;
2659 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2660
2661 zb->zb_asize += BP_GET_ASIZE(bp);
2662 zb->zb_lsize += BP_GET_LSIZE(bp);
2663 zb->zb_psize += BP_GET_PSIZE(bp);
2664 zb->zb_count++;
2665
2666 /*
2667 * The histogram is only big enough to record blocks up to
2668 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2669 * "other", bucket.
2670 */
2671 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2672 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2673 zb->zb_psize_histogram[idx]++;
2674
2675 zb->zb_gangs += BP_COUNT_GANG(bp);
2676
2677 switch (BP_GET_NDVAS(bp)) {
2678 case 2:
2679 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2680 DVA_GET_VDEV(&bp->blk_dva[1]))
2681 zb->zb_ditto_samevdev++;
2682 break;
2683 case 3:
2684 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2685 DVA_GET_VDEV(&bp->blk_dva[1])) +
2686 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2687 DVA_GET_VDEV(&bp->blk_dva[2])) +
2688 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2689 DVA_GET_VDEV(&bp->blk_dva[2]));
2690 if (equal != 0)
2691 zb->zb_ditto_samevdev++;
2692 break;
2693 }
2694
2695 }
2696
2697 if (BP_IS_EMBEDDED(bp)) {
2698 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2699 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2700 [BPE_GET_PSIZE(bp)]++;
2701 return;
2702 }
2703
2704 if (dump_opt['L'])
2705 return;
2706
2707 if (BP_GET_DEDUP(bp)) {
2708 ddt_t *ddt;
2709 ddt_entry_t *dde;
2710
2711 ddt = ddt_select(zcb->zcb_spa, bp);
2712 ddt_enter(ddt);
2713 dde = ddt_lookup(ddt, bp, B_FALSE);
2714
2715 if (dde == NULL) {
2716 refcnt = 0;
2717 } else {
2718 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2719 ddt_phys_decref(ddp);
2720 refcnt = ddp->ddp_refcnt;
2721 if (ddt_phys_total_refcnt(dde) == 0)
2722 ddt_remove(ddt, dde);
2723 }
2724 ddt_exit(ddt);
2725 }
2726
2727 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2728 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2729 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2730 }
2731
2732 static void
2733 zdb_blkptr_done(zio_t *zio)
2734 {
2735 spa_t *spa = zio->io_spa;
2736 blkptr_t *bp = zio->io_bp;
2737 int ioerr = zio->io_error;
2738 zdb_cb_t *zcb = zio->io_private;
2739 zbookmark_phys_t *zb = &zio->io_bookmark;
2740
2741 abd_free(zio->io_abd);
2742
2743 mutex_enter(&spa->spa_scrub_lock);
2744 spa->spa_scrub_inflight--;
2745 cv_broadcast(&spa->spa_scrub_io_cv);
2746
2747 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2748 char blkbuf[BP_SPRINTF_LEN];
2749
2750 zcb->zcb_haderrors = 1;
2751 zcb->zcb_errors[ioerr]++;
2752
2753 if (dump_opt['b'] >= 2)
2754 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2755 else
2756 blkbuf[0] = '\0';
2757
2758 (void) printf("zdb_blkptr_cb: "
2759 "Got error %d reading "
2760 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2761 ioerr,
2762 (u_longlong_t)zb->zb_objset,
2763 (u_longlong_t)zb->zb_object,
2764 (u_longlong_t)zb->zb_level,
2765 (u_longlong_t)zb->zb_blkid,
2766 blkbuf);
2767 }
2768 mutex_exit(&spa->spa_scrub_lock);
2769 }
2770
2771 static int
2772 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2773 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2774 {
2775 zdb_cb_t *zcb = arg;
2776 dmu_object_type_t type;
2777 boolean_t is_metadata;
2778
2779 if (bp == NULL)
2780 return (0);
2781
2782 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2783 char blkbuf[BP_SPRINTF_LEN];
2784 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2785 (void) printf("objset %llu object %llu "
2786 "level %lld offset 0x%llx %s\n",
2787 (u_longlong_t)zb->zb_objset,
2788 (u_longlong_t)zb->zb_object,
2789 (longlong_t)zb->zb_level,
2790 (u_longlong_t)blkid2offset(dnp, bp, zb),
2791 blkbuf);
2792 }
2793
2794 if (BP_IS_HOLE(bp))
2795 return (0);
2796
2797 type = BP_GET_TYPE(bp);
2798
2799 zdb_count_block(zcb, zilog, bp,
2800 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2801
2802 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2803
2804 if (!BP_IS_EMBEDDED(bp) &&
2805 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2806 size_t size = BP_GET_PSIZE(bp);
2807 abd_t *abd = abd_alloc(size, B_FALSE);
2808 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2809
2810 /* If it's an intent log block, failure is expected. */
2811 if (zb->zb_level == ZB_ZIL_LEVEL)
2812 flags |= ZIO_FLAG_SPECULATIVE;
2813
2814 mutex_enter(&spa->spa_scrub_lock);
2815 while (spa->spa_scrub_inflight > max_inflight)
2816 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2817 spa->spa_scrub_inflight++;
2818 mutex_exit(&spa->spa_scrub_lock);
2819
2820 zio_nowait(zio_read(NULL, spa, bp, abd, size,
2821 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2822 }
2823
2824 zcb->zcb_readfails = 0;
2825
2826 /* only call gethrtime() every 100 blocks */
2827 static int iters;
2828 if (++iters > 100)
2829 iters = 0;
2830 else
2831 return (0);
2832
2833 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2834 uint64_t now = gethrtime();
2835 char buf[10];
2836 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2837 int kb_per_sec =
2838 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2839 int sec_remaining =
2840 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2841
2842 /* make sure nicenum has enough space */
2843 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ);
2844
2845 zfs_nicenum(bytes, buf, sizeof (buf));
2846 (void) fprintf(stderr,
2847 "\r%5s completed (%4dMB/s) "
2848 "estimated time remaining: %uhr %02umin %02usec ",
2849 buf, kb_per_sec / 1024,
2850 sec_remaining / 60 / 60,
2851 sec_remaining / 60 % 60,
2852 sec_remaining % 60);
2853
2854 zcb->zcb_lastprint = now;
2855 }
2856
2857 return (0);
2858 }
2859
2860 static void
2861 zdb_leak(void *arg, uint64_t start, uint64_t size)
2862 {
2863 vdev_t *vd = arg;
2864
2865 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2866 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2867 }
2868
2869 static metaslab_ops_t zdb_metaslab_ops = {
2870 NULL /* alloc */
2871 };
2872
2873 static void
2874 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2875 {
2876 ddt_bookmark_t ddb;
2877 ddt_entry_t dde;
2878 int error;
2879
2880 bzero(&ddb, sizeof (ddb));
2881 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2882 blkptr_t blk;
2883 ddt_phys_t *ddp = dde.dde_phys;
2884
2885 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2886 return;
2887
2888 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2889
2890 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2891 if (ddp->ddp_phys_birth == 0)
2892 continue;
2893 ddt_bp_create(ddb.ddb_checksum,
2894 &dde.dde_key, ddp, &blk);
2895 if (p == DDT_PHYS_DITTO) {
2896 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2897 } else {
2898 zcb->zcb_dedup_asize +=
2899 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2900 zcb->zcb_dedup_blocks++;
2901 }
2902 }
2903 if (!dump_opt['L']) {
2904 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2905 ddt_enter(ddt);
2906 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2907 ddt_exit(ddt);
2908 }
2909 }
2910
2911 ASSERT(error == ENOENT);
2912 }
2913
2914 /* ARGSUSED */
2915 static void
2916 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset,
2917 uint64_t size, void *arg)
2918 {
2919 /*
2920 * This callback was called through a remap from
2921 * a device being removed. Therefore, the vdev that
2922 * this callback is applied to is a concrete
2923 * vdev.
2924 */
2925 ASSERT(vdev_is_concrete(vd));
2926
2927 VERIFY0(metaslab_claim_impl(vd, offset, size,
2928 spa_first_txg(vd->vdev_spa)));
2929 }
2930
2931 static void
2932 claim_segment_cb(void *arg, uint64_t offset, uint64_t size)
2933 {
2934 vdev_t *vd = arg;
2935
2936 vdev_indirect_ops.vdev_op_remap(vd, offset, size,
2937 claim_segment_impl_cb, NULL);
2938 }
2939
2940 /*
2941 * After accounting for all allocated blocks that are directly referenced,
2942 * we might have missed a reference to a block from a partially complete
2943 * (and thus unused) indirect mapping object. We perform a secondary pass
2944 * through the metaslabs we have already mapped and claim the destination
2945 * blocks.
2946 */
2947 static void
2948 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb)
2949 {
2950 if (spa->spa_vdev_removal == NULL)
2951 return;
2952
2953 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2954
2955 spa_vdev_removal_t *svr = spa->spa_vdev_removal;
2956 vdev_t *vd = svr->svr_vdev;
2957 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
2958
2959 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) {
2960 metaslab_t *msp = vd->vdev_ms[msi];
2961
2962 if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim))
2963 break;
2964
2965 ASSERT0(range_tree_space(svr->svr_allocd_segs));
2966
2967 if (msp->ms_sm != NULL) {
2968 VERIFY0(space_map_load(msp->ms_sm,
2969 svr->svr_allocd_segs, SM_ALLOC));
2970
2971 /*
2972 * Clear everything past what has been synced,
2973 * because we have not allocated mappings for it yet.
2974 */
2975 range_tree_clear(svr->svr_allocd_segs,
2976 vdev_indirect_mapping_max_offset(vim),
2977 msp->ms_sm->sm_start + msp->ms_sm->sm_size -
2978 vdev_indirect_mapping_max_offset(vim));
2979 }
2980
2981 zcb->zcb_removing_size +=
2982 range_tree_space(svr->svr_allocd_segs);
2983 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd);
2984 }
2985
2986 spa_config_exit(spa, SCL_CONFIG, FTAG);
2987 }
2988
2989 /*
2990 * vm_idxp is an in-out parameter which (for indirect vdevs) is the
2991 * index in vim_entries that has the first entry in this metaslab. On
2992 * return, it will be set to the first entry after this metaslab.
2993 */
2994 static void
2995 zdb_leak_init_ms(metaslab_t *msp, uint64_t *vim_idxp)
2996 {
2997 metaslab_group_t *mg = msp->ms_group;
2998 vdev_t *vd = mg->mg_vd;
2999 vdev_t *rvd = vd->vdev_spa->spa_root_vdev;
3000
3001 mutex_enter(&msp->ms_lock);
3002 metaslab_unload(msp);
3003
3004 /*
3005 * We don't want to spend the CPU manipulating the size-ordered
3006 * tree, so clear the range_tree ops.
3007 */
3008 msp->ms_tree->rt_ops = NULL;
3009
3010 (void) fprintf(stderr,
3011 "\rloading vdev %llu of %llu, metaslab %llu of %llu ...",
3012 (longlong_t)vd->vdev_id,
3013 (longlong_t)rvd->vdev_children,
3014 (longlong_t)msp->ms_id,
3015 (longlong_t)vd->vdev_ms_count);
3016
3017 /*
3018 * For leak detection, we overload the metaslab ms_tree to
3019 * contain allocated segments instead of free segments. As a
3020 * result, we can't use the normal metaslab_load/unload
3021 * interfaces.
3022 */
3023 if (vd->vdev_ops == &vdev_indirect_ops) {
3024 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3025 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim);
3026 (*vim_idxp)++) {
3027 vdev_indirect_mapping_entry_phys_t *vimep =
3028 &vim->vim_entries[*vim_idxp];
3029 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
3030 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst);
3031 ASSERT3U(ent_offset, >=, msp->ms_start);
3032 if (ent_offset >= msp->ms_start + msp->ms_size)
3033 break;
3034
3035 /*
3036 * Mappings do not cross metaslab boundaries,
3037 * because we create them by walking the metaslabs.
3038 */
3039 ASSERT3U(ent_offset + ent_len, <=,
3040 msp->ms_start + msp->ms_size);
3041 range_tree_add(msp->ms_tree, ent_offset, ent_len);
3042 }
3043 } else if (msp->ms_sm != NULL) {
3044 VERIFY0(space_map_load(msp->ms_sm, msp->ms_tree, SM_ALLOC));
3045 }
3046
3047 if (!msp->ms_loaded) {
3048 msp->ms_loaded = B_TRUE;
3049 }
3050 mutex_exit(&msp->ms_lock);
3051 }
3052
3053 /* ARGSUSED */
3054 static int
3055 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
3056 {
3057 zdb_cb_t *zcb = arg;
3058 spa_t *spa = zcb->zcb_spa;
3059 vdev_t *vd;
3060 const dva_t *dva = &bp->blk_dva[0];
3061
3062 ASSERT(!dump_opt['L']);
3063 ASSERT3U(BP_GET_NDVAS(bp), ==, 1);
3064
3065 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
3066 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva));
3067 ASSERT3P(vd, !=, NULL);
3068 spa_config_exit(spa, SCL_VDEV, FTAG);
3069
3070 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0);
3071 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL);
3072
3073 vdev_indirect_mapping_increment_obsolete_count(
3074 vd->vdev_indirect_mapping,
3075 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva),
3076 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
3077
3078 return (0);
3079 }
3080
3081 static uint32_t *
3082 zdb_load_obsolete_counts(vdev_t *vd)
3083 {
3084 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3085 spa_t *spa = vd->vdev_spa;
3086 spa_condensing_indirect_phys_t *scip =
3087 &spa->spa_condensing_indirect_phys;
3088 uint32_t *counts;
3089
3090 EQUIV(vdev_obsolete_sm_object(vd) != 0, vd->vdev_obsolete_sm != NULL);
3091 counts = vdev_indirect_mapping_load_obsolete_counts(vim);
3092 if (vd->vdev_obsolete_sm != NULL) {
3093 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
3094 vd->vdev_obsolete_sm);
3095 }
3096 if (scip->scip_vdev == vd->vdev_id &&
3097 scip->scip_prev_obsolete_sm_object != 0) {
3098 space_map_t *prev_obsolete_sm = NULL;
3099 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset,
3100 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0));
3101 space_map_update(prev_obsolete_sm);
3102 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
3103 prev_obsolete_sm);
3104 space_map_close(prev_obsolete_sm);
3105 }
3106 return (counts);
3107 }
3108
3109 static void
3110 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
3111 {
3112 zcb->zcb_spa = spa;
3113
3114 if (!dump_opt['L']) {
3115 dsl_pool_t *dp = spa->spa_dsl_pool;
3116 vdev_t *rvd = spa->spa_root_vdev;
3117
3118 /*
3119 * We are going to be changing the meaning of the metaslab's
3120 * ms_tree. Ensure that the allocator doesn't try to
3121 * use the tree.
3122 */
3123 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
3124 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
3125
3126 zcb->zcb_vd_obsolete_counts =
3127 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *),
3128 UMEM_NOFAIL);
3129
3130
3131 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
3132 vdev_t *vd = rvd->vdev_child[c];
3133 uint64_t vim_idx = 0;
3134
3135 ASSERT3U(c, ==, vd->vdev_id);
3136
3137 /*
3138 * Note: we don't check for mapping leaks on
3139 * removing vdevs because their ms_tree's are
3140 * used to look for leaks in allocated space.
3141 */
3142 if (vd->vdev_ops == &vdev_indirect_ops) {
3143 zcb->zcb_vd_obsolete_counts[c] =
3144 zdb_load_obsolete_counts(vd);
3145
3146 /*
3147 * Normally, indirect vdevs don't have any
3148 * metaslabs. We want to set them up for
3149 * zio_claim().
3150 */
3151 VERIFY0(vdev_metaslab_init(vd, 0));
3152 }
3153
3154 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
3155 zdb_leak_init_ms(vd->vdev_ms[m], &vim_idx);
3156 }
3157 if (vd->vdev_ops == &vdev_indirect_ops) {
3158 ASSERT3U(vim_idx, ==,
3159 vdev_indirect_mapping_num_entries(
3160 vd->vdev_indirect_mapping));
3161 }
3162 }
3163 (void) fprintf(stderr, "\n");
3164
3165 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
3166 ASSERT(spa_feature_is_enabled(spa,
3167 SPA_FEATURE_DEVICE_REMOVAL));
3168 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj,
3169 increment_indirect_mapping_cb, zcb, NULL);
3170 }
3171 }
3172
3173 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3174
3175 zdb_ddt_leak_init(spa, zcb);
3176
3177 spa_config_exit(spa, SCL_CONFIG, FTAG);
3178 }
3179
3180 static boolean_t
3181 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb)
3182 {
3183 boolean_t leaks = B_FALSE;
3184 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3185 uint64_t total_leaked = 0;
3186
3187 ASSERT(vim != NULL);
3188
3189 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
3190 vdev_indirect_mapping_entry_phys_t *vimep =
3191 &vim->vim_entries[i];
3192 uint64_t obsolete_bytes = 0;
3193 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
3194 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];
3195
3196 /*
3197 * This is not very efficient but it's easy to
3198 * verify correctness.
3199 */
3200 for (uint64_t inner_offset = 0;
3201 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst);
3202 inner_offset += 1 << vd->vdev_ashift) {
3203 if (range_tree_contains(msp->ms_tree,
3204 offset + inner_offset, 1 << vd->vdev_ashift)) {
3205 obsolete_bytes += 1 << vd->vdev_ashift;
3206 }
3207 }
3208
3209 int64_t bytes_leaked = obsolete_bytes -
3210 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i];
3211 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=,
3212 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]);
3213 if (bytes_leaked != 0 &&
3214 (vdev_obsolete_counts_are_precise(vd) ||
3215 dump_opt['d'] >= 5)) {
3216 (void) printf("obsolete indirect mapping count "
3217 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n",
3218 (u_longlong_t)vd->vdev_id,
3219 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
3220 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
3221 (u_longlong_t)bytes_leaked);
3222 }
3223 total_leaked += ABS(bytes_leaked);
3224 }
3225
3226 if (!vdev_obsolete_counts_are_precise(vd) && total_leaked > 0) {
3227 int pct_leaked = total_leaked * 100 /
3228 vdev_indirect_mapping_bytes_mapped(vim);
3229 (void) printf("cannot verify obsolete indirect mapping "
3230 "counts of vdev %llu because precise feature was not "
3231 "enabled when it was removed: %d%% (%llx bytes) of mapping"
3232 "unreferenced\n",
3233 (u_longlong_t)vd->vdev_id, pct_leaked,
3234 (u_longlong_t)total_leaked);
3235 } else if (total_leaked > 0) {
3236 (void) printf("obsolete indirect mapping count mismatch "
3237 "for vdev %llu -- %llx total bytes mismatched\n",
3238 (u_longlong_t)vd->vdev_id,
3239 (u_longlong_t)total_leaked);
3240 leaks |= B_TRUE;
3241 }
3242
3243 vdev_indirect_mapping_free_obsolete_counts(vim,
3244 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
3245 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL;
3246
3247 return (leaks);
3248 }
3249
3250 static boolean_t
3251 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb)
3252 {
3253 boolean_t leaks = B_FALSE;
3254 if (!dump_opt['L']) {
3255 vdev_t *rvd = spa->spa_root_vdev;
3256 for (unsigned c = 0; c < rvd->vdev_children; c++) {
3257 vdev_t *vd = rvd->vdev_child[c];
3258 metaslab_group_t *mg = vd->vdev_mg;
3259
3260 if (zcb->zcb_vd_obsolete_counts[c] != NULL) {
3261 leaks |= zdb_check_for_obsolete_leaks(vd, zcb);
3262 }
3263
3264 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
3265 metaslab_t *msp = vd->vdev_ms[m];
3266 ASSERT3P(mg, ==, msp->ms_group);
3267
3268 /*
3269 * The ms_tree has been overloaded to
3270 * contain allocated segments. Now that we
3271 * finished traversing all blocks, any
3272 * block that remains in the ms_tree
3273 * represents an allocated block that we
3274 * did not claim during the traversal.
3275 * Claimed blocks would have been removed
3276 * from the ms_tree. For indirect vdevs,
3277 * space remaining in the tree represents
3278 * parts of the mapping that are not
3279 * referenced, which is not a bug.
3280 */
3281 if (vd->vdev_ops == &vdev_indirect_ops) {
3282 range_tree_vacate(msp->ms_tree,
3283 NULL, NULL);
3284 } else {
3285 range_tree_vacate(msp->ms_tree,
3286 zdb_leak, vd);
3287 }
3288
3289 if (msp->ms_loaded) {
3290 msp->ms_loaded = B_FALSE;
3291 }
3292 }
3293 }
3294
3295 umem_free(zcb->zcb_vd_obsolete_counts,
3296 rvd->vdev_children * sizeof (uint32_t *));
3297 zcb->zcb_vd_obsolete_counts = NULL;
3298 }
3299 return (leaks);
3300 }
3301
3302 /* ARGSUSED */
3303 static int
3304 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
3305 {
3306 zdb_cb_t *zcb = arg;
3307
3308 if (dump_opt['b'] >= 5) {
3309 char blkbuf[BP_SPRINTF_LEN];
3310 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3311 (void) printf("[%s] %s\n",
3312 "deferred free", blkbuf);
3313 }
3314 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
3315 return (0);
3316 }
3317
3318 static int
3319 dump_block_stats(spa_t *spa)
3320 {
3321 zdb_cb_t zcb;
3322 zdb_blkstats_t *zb, *tzb;
3323 uint64_t norm_alloc, norm_space, total_alloc, total_found;
3324 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
3325 boolean_t leaks = B_FALSE;
3326
3327 bzero(&zcb, sizeof (zcb));
3328 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
3329 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
3330 (dump_opt['c'] == 1) ? "metadata " : "",
3331 dump_opt['c'] ? "checksums " : "",
3332 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
3333 !dump_opt['L'] ? "nothing leaked " : "");
3334
3335 /*
3336 * Load all space maps as SM_ALLOC maps, then traverse the pool
3337 * claiming each block we discover. If the pool is perfectly
3338 * consistent, the space maps will be empty when we're done.
3339 * Anything left over is a leak; any block we can't claim (because
3340 * it's not part of any space map) is a double allocation,
3341 * reference to a freed block, or an unclaimed log block.
3342 */
3343 zdb_leak_init(spa, &zcb);
3344
3345 /*
3346 * If there's a deferred-free bplist, process that first.
3347 */
3348 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
3349 count_block_cb, &zcb, NULL);
3350
3351 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3352 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
3353 count_block_cb, &zcb, NULL);
3354 }
3355
3356 zdb_claim_removing(spa, &zcb);
3357
3358 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
3359 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
3360 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
3361 &zcb, NULL));
3362 }
3363
3364 if (dump_opt['c'] > 1)
3365 flags |= TRAVERSE_PREFETCH_DATA;
3366
3367 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
3368 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
3369 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
3370
3371 /*
3372 * If we've traversed the data blocks then we need to wait for those
3373 * I/Os to complete. We leverage "The Godfather" zio to wait on
3374 * all async I/Os to complete.
3375 */
3376 if (dump_opt['c']) {
3377 for (int i = 0; i < max_ncpus; i++) {
3378 (void) zio_wait(spa->spa_async_zio_root[i]);
3379 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
3380 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
3381 ZIO_FLAG_GODFATHER);
3382 }
3383 }
3384
3385 if (zcb.zcb_haderrors) {
3386 (void) printf("\nError counts:\n\n");
3387 (void) printf("\t%5s %s\n", "errno", "count");
3388 for (int e = 0; e < 256; e++) {
3389 if (zcb.zcb_errors[e] != 0) {
3390 (void) printf("\t%5d %llu\n",
3391 e, (u_longlong_t)zcb.zcb_errors[e]);
3392 }
3393 }
3394 }
3395
3396 /*
3397 * Report any leaked segments.
3398 */
3399 leaks |= zdb_leak_fini(spa, &zcb);
3400
3401 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
3402
3403 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
3404 norm_space = metaslab_class_get_space(spa_normal_class(spa));
3405
3406 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
3407 total_found = tzb->zb_asize - zcb.zcb_dedup_asize +
3408 zcb.zcb_removing_size;
3409
3410 if (total_found == total_alloc) {
3411 if (!dump_opt['L'])
3412 (void) printf("\n\tNo leaks (block sum matches space"
3413 " maps exactly)\n");
3414 } else {
3415 (void) printf("block traversal size %llu != alloc %llu "
3416 "(%s %lld)\n",
3417 (u_longlong_t)total_found,
3418 (u_longlong_t)total_alloc,
3419 (dump_opt['L']) ? "unreachable" : "leaked",
3420 (longlong_t)(total_alloc - total_found));
3421 leaks = B_TRUE;
3422 }
3423
3424 if (tzb->zb_count == 0)
3425 return (2);
3426
3427 (void) printf("\n");
3428 (void) printf("\tbp count: %10llu\n",
3429 (u_longlong_t)tzb->zb_count);
3430 (void) printf("\tganged count: %10llu\n",
3431 (longlong_t)tzb->zb_gangs);
3432 (void) printf("\tbp logical: %10llu avg: %6llu\n",
3433 (u_longlong_t)tzb->zb_lsize,
3434 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
3435 (void) printf("\tbp physical: %10llu avg:"
3436 " %6llu compression: %6.2f\n",
3437 (u_longlong_t)tzb->zb_psize,
3438 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
3439 (double)tzb->zb_lsize / tzb->zb_psize);
3440 (void) printf("\tbp allocated: %10llu avg:"
3441 " %6llu compression: %6.2f\n",
3442 (u_longlong_t)tzb->zb_asize,
3443 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
3444 (double)tzb->zb_lsize / tzb->zb_asize);
3445 (void) printf("\tbp deduped: %10llu ref>1:"
3446 " %6llu deduplication: %6.2f\n",
3447 (u_longlong_t)zcb.zcb_dedup_asize,
3448 (u_longlong_t)zcb.zcb_dedup_blocks,
3449 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
3450 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
3451 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
3452
3453 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
3454 if (zcb.zcb_embedded_blocks[i] == 0)
3455 continue;
3456 (void) printf("\n");
3457 (void) printf("\tadditional, non-pointer bps of type %u: "
3458 "%10llu\n",
3459 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
3460
3461 if (dump_opt['b'] >= 3) {
3462 (void) printf("\t number of (compressed) bytes: "
3463 "number of bps\n");
3464 dump_histogram(zcb.zcb_embedded_histogram[i],
3465 sizeof (zcb.zcb_embedded_histogram[i]) /
3466 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
3467 }
3468 }
3469
3470 if (tzb->zb_ditto_samevdev != 0) {
3471 (void) printf("\tDittoed blocks on same vdev: %llu\n",
3472 (longlong_t)tzb->zb_ditto_samevdev);
3473 }
3474
3475 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) {
3476 vdev_t *vd = spa->spa_root_vdev->vdev_child[v];
3477 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3478
3479 if (vim == NULL) {
3480 continue;
3481 }
3482
3483 char mem[32];
3484 zdb_nicenum(vdev_indirect_mapping_num_entries(vim),
3485 mem, vdev_indirect_mapping_size(vim));
3486
3487 (void) printf("\tindirect vdev id %llu has %llu segments "
3488 "(%s in memory)\n",
3489 (longlong_t)vd->vdev_id,
3490 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem);
3491 }
3492
3493 if (dump_opt['b'] >= 2) {
3494 int l, t, level;
3495 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
3496 "\t avg\t comp\t%%Total\tType\n");
3497
3498 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
3499 char csize[32], lsize[32], psize[32], asize[32];
3500 char avg[32], gang[32];
3501 const char *typename;
3502
3503 /* make sure nicenum has enough space */
3504 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ);
3505 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
3506 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ);
3507 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
3508 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ);
3509 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ);
3510
3511 if (t < DMU_OT_NUMTYPES)
3512 typename = dmu_ot[t].ot_name;
3513 else
3514 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
3515
3516 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
3517 (void) printf("%6s\t%5s\t%5s\t%5s"
3518 "\t%5s\t%5s\t%6s\t%s\n",
3519 "-",
3520 "-",
3521 "-",
3522 "-",
3523 "-",
3524 "-",
3525 "-",
3526 typename);
3527 continue;
3528 }
3529
3530 for (l = ZB_TOTAL - 1; l >= -1; l--) {
3531 level = (l == -1 ? ZB_TOTAL : l);
3532 zb = &zcb.zcb_type[level][t];
3533
3534 if (zb->zb_asize == 0)
3535 continue;
3536
3537 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
3538 continue;
3539
3540 if (level == 0 && zb->zb_asize ==
3541 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
3542 continue;
3543
3544 zdb_nicenum(zb->zb_count, csize,
3545 sizeof (csize));
3546 zdb_nicenum(zb->zb_lsize, lsize,
3547 sizeof (lsize));
3548 zdb_nicenum(zb->zb_psize, psize,
3549 sizeof (psize));
3550 zdb_nicenum(zb->zb_asize, asize,
3551 sizeof (asize));
3552 zdb_nicenum(zb->zb_asize / zb->zb_count, avg,
3553 sizeof (avg));
3554 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang));
3555
3556 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
3557 "\t%5.2f\t%6.2f\t",
3558 csize, lsize, psize, asize, avg,
3559 (double)zb->zb_lsize / zb->zb_psize,
3560 100.0 * zb->zb_asize / tzb->zb_asize);
3561
3562 if (level == ZB_TOTAL)
3563 (void) printf("%s\n", typename);
3564 else
3565 (void) printf(" L%d %s\n",
3566 level, typename);
3567
3568 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
3569 (void) printf("\t number of ganged "
3570 "blocks: %s\n", gang);
3571 }
3572
3573 if (dump_opt['b'] >= 4) {
3574 (void) printf("psize "
3575 "(in 512-byte sectors): "
3576 "number of blocks\n");
3577 dump_histogram(zb->zb_psize_histogram,
3578 PSIZE_HISTO_SIZE, 0);
3579 }
3580 }
3581 }
3582 }
3583
3584 (void) printf("\n");
3585
3586 if (leaks)
3587 return (2);
3588
3589 if (zcb.zcb_haderrors)
3590 return (3);
3591
3592 return (0);
3593 }
3594
3595 typedef struct zdb_ddt_entry {
3596 ddt_key_t zdde_key;
3597 uint64_t zdde_ref_blocks;
3598 uint64_t zdde_ref_lsize;
3599 uint64_t zdde_ref_psize;
3600 uint64_t zdde_ref_dsize;
3601 avl_node_t zdde_node;
3602 } zdb_ddt_entry_t;
3603
3604 /* ARGSUSED */
3605 static int
3606 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3607 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3608 {
3609 avl_tree_t *t = arg;
3610 avl_index_t where;
3611 zdb_ddt_entry_t *zdde, zdde_search;
3612
3613 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
3614 return (0);
3615
3616 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
3617 (void) printf("traversing objset %llu, %llu objects, "
3618 "%lu blocks so far\n",
3619 (u_longlong_t)zb->zb_objset,
3620 (u_longlong_t)BP_GET_FILL(bp),
3621 avl_numnodes(t));
3622 }
3623
3624 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
3625 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
3626 return (0);
3627
3628 ddt_key_fill(&zdde_search.zdde_key, bp);
3629
3630 zdde = avl_find(t, &zdde_search, &where);
3631
3632 if (zdde == NULL) {
3633 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
3634 zdde->zdde_key = zdde_search.zdde_key;
3635 avl_insert(t, zdde, where);
3636 }
3637
3638 zdde->zdde_ref_blocks += 1;
3639 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
3640 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
3641 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
3642
3643 return (0);
3644 }
3645
3646 static void
3647 dump_simulated_ddt(spa_t *spa)
3648 {
3649 avl_tree_t t;
3650 void *cookie = NULL;
3651 zdb_ddt_entry_t *zdde;
3652 ddt_histogram_t ddh_total;
3653 ddt_stat_t dds_total;
3654
3655 bzero(&ddh_total, sizeof (ddh_total));
3656 bzero(&dds_total, sizeof (dds_total));
3657 avl_create(&t, ddt_entry_compare,
3658 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
3659
3660 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3661
3662 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
3663 zdb_ddt_add_cb, &t);
3664
3665 spa_config_exit(spa, SCL_CONFIG, FTAG);
3666
3667 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
3668 ddt_stat_t dds;
3669 uint64_t refcnt = zdde->zdde_ref_blocks;
3670 ASSERT(refcnt != 0);
3671
3672 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
3673 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
3674 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
3675 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
3676
3677 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
3678 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
3679 dds.dds_ref_psize = zdde->zdde_ref_psize;
3680 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3681
3682 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3683 &dds, 0);
3684
3685 umem_free(zdde, sizeof (*zdde));
3686 }
3687
3688 avl_destroy(&t);
3689
3690 ddt_histogram_stat(&dds_total, &ddh_total);
3691
3692 (void) printf("Simulated DDT histogram:\n");
3693
3694 zpool_dump_ddt(&dds_total, &ddh_total);
3695
3696 dump_dedup_ratio(&dds_total);
3697 }
3698
3699 static int
3700 verify_device_removal_feature_counts(spa_t *spa)
3701 {
3702 uint64_t dr_feature_refcount = 0;
3703 uint64_t oc_feature_refcount = 0;
3704 uint64_t indirect_vdev_count = 0;
3705 uint64_t precise_vdev_count = 0;
3706 uint64_t obsolete_counts_object_count = 0;
3707 uint64_t obsolete_sm_count = 0;
3708 uint64_t obsolete_counts_count = 0;
3709 uint64_t scip_count = 0;
3710 uint64_t obsolete_bpobj_count = 0;
3711 int ret = 0;
3712
3713 spa_condensing_indirect_phys_t *scip =
3714 &spa->spa_condensing_indirect_phys;
3715 if (scip->scip_next_mapping_object != 0) {
3716 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev];
3717 ASSERT(scip->scip_prev_obsolete_sm_object != 0);
3718 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops);
3719
3720 (void) printf("Condensing indirect vdev %llu: new mapping "
3721 "object %llu, prev obsolete sm %llu\n",
3722 (u_longlong_t)scip->scip_vdev,
3723 (u_longlong_t)scip->scip_next_mapping_object,
3724 (u_longlong_t)scip->scip_prev_obsolete_sm_object);
3725 if (scip->scip_prev_obsolete_sm_object != 0) {
3726 space_map_t *prev_obsolete_sm = NULL;
3727 VERIFY0(space_map_open(&prev_obsolete_sm,
3728 spa->spa_meta_objset,
3729 scip->scip_prev_obsolete_sm_object,
3730 0, vd->vdev_asize, 0));
3731 space_map_update(prev_obsolete_sm);
3732 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm);
3733 (void) printf("\n");
3734 space_map_close(prev_obsolete_sm);
3735 }
3736
3737 scip_count += 2;
3738 }
3739
3740 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) {
3741 vdev_t *vd = spa->spa_root_vdev->vdev_child[i];
3742 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
3743
3744 if (vic->vic_mapping_object != 0) {
3745 ASSERT(vd->vdev_ops == &vdev_indirect_ops ||
3746 vd->vdev_removing);
3747 indirect_vdev_count++;
3748
3749 if (vd->vdev_indirect_mapping->vim_havecounts) {
3750 obsolete_counts_count++;
3751 }
3752 }
3753 if (vdev_obsolete_counts_are_precise(vd)) {
3754 ASSERT(vic->vic_mapping_object != 0);
3755 precise_vdev_count++;
3756 }
3757 if (vdev_obsolete_sm_object(vd) != 0) {
3758 ASSERT(vic->vic_mapping_object != 0);
3759 obsolete_sm_count++;
3760 }
3761 }
3762
3763 (void) feature_get_refcount(spa,
3764 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL],
3765 &dr_feature_refcount);
3766 (void) feature_get_refcount(spa,
3767 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS],
3768 &oc_feature_refcount);
3769
3770 if (dr_feature_refcount != indirect_vdev_count) {
3771 ret = 1;
3772 (void) printf("Number of indirect vdevs (%llu) " \
3773 "does not match feature count (%llu)\n",
3774 (u_longlong_t)indirect_vdev_count,
3775 (u_longlong_t)dr_feature_refcount);
3776 } else {
3777 (void) printf("Verified device_removal feature refcount " \
3778 "of %llu is correct\n",
3779 (u_longlong_t)dr_feature_refcount);
3780 }
3781
3782 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT,
3783 DMU_POOL_OBSOLETE_BPOBJ) == 0) {
3784 obsolete_bpobj_count++;
3785 }
3786
3787
3788 obsolete_counts_object_count = precise_vdev_count;
3789 obsolete_counts_object_count += obsolete_sm_count;
3790 obsolete_counts_object_count += obsolete_counts_count;
3791 obsolete_counts_object_count += scip_count;
3792 obsolete_counts_object_count += obsolete_bpobj_count;
3793 obsolete_counts_object_count += remap_deadlist_count;
3794
3795 if (oc_feature_refcount != obsolete_counts_object_count) {
3796 ret = 1;
3797 (void) printf("Number of obsolete counts objects (%llu) " \
3798 "does not match feature count (%llu)\n",
3799 (u_longlong_t)obsolete_counts_object_count,
3800 (u_longlong_t)oc_feature_refcount);
3801 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu "
3802 "ob:%llu rd:%llu\n",
3803 (u_longlong_t)precise_vdev_count,
3804 (u_longlong_t)obsolete_sm_count,
3805 (u_longlong_t)obsolete_counts_count,
3806 (u_longlong_t)scip_count,
3807 (u_longlong_t)obsolete_bpobj_count,
3808 (u_longlong_t)remap_deadlist_count);
3809 } else {
3810 (void) printf("Verified indirect_refcount feature refcount " \
3811 "of %llu is correct\n",
3812 (u_longlong_t)oc_feature_refcount);
3813 }
3814 return (ret);
3815 }
3816
3817 static void
3818 dump_zpool(spa_t *spa)
3819 {
3820 dsl_pool_t *dp = spa_get_dsl(spa);
3821 int rc = 0;
3822
3823 if (dump_opt['S']) {
3824 dump_simulated_ddt(spa);
3825 return;
3826 }
3827
3828 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3829 (void) printf("\nCached configuration:\n");
3830 dump_nvlist(spa->spa_config, 8);
3831 }
3832
3833 if (dump_opt['C'])
3834 dump_config(spa);
3835
3836 if (dump_opt['u'])
3837 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3838
3839 if (dump_opt['D'])
3840 dump_all_ddts(spa);
3841
3842 if (dump_opt['d'] > 2 || dump_opt['m'])
3843 dump_metaslabs(spa);
3844 if (dump_opt['M'])
3845 dump_metaslab_groups(spa);
3846
3847 if (dump_opt['d'] || dump_opt['i']) {
3848 dump_dir(dp->dp_meta_objset);
3849 if (dump_opt['d'] >= 3) {
3850 dsl_pool_t *dp = spa->spa_dsl_pool;
3851 dump_full_bpobj(&spa->spa_deferred_bpobj,
3852 "Deferred frees", 0);
3853 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3854 dump_full_bpobj(&dp->dp_free_bpobj,
3855 "Pool snapshot frees", 0);
3856 }
3857 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
3858 ASSERT(spa_feature_is_enabled(spa,
3859 SPA_FEATURE_DEVICE_REMOVAL));
3860 dump_full_bpobj(&dp->dp_obsolete_bpobj,
3861 "Pool obsolete blocks", 0);
3862 }
3863
3864 if (spa_feature_is_active(spa,
3865 SPA_FEATURE_ASYNC_DESTROY)) {
3866 dump_bptree(spa->spa_meta_objset,
3867 dp->dp_bptree_obj,
3868 "Pool dataset frees");
3869 }
3870 dump_dtl(spa->spa_root_vdev, 0);
3871 }
3872 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3873 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3874
3875 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
3876 uint64_t refcount;
3877
3878 if (!(spa_feature_table[f].fi_flags &
3879 ZFEATURE_FLAG_PER_DATASET) ||
3880 !spa_feature_is_enabled(spa, f)) {
3881 ASSERT0(dataset_feature_count[f]);
3882 continue;
3883 }
3884 (void) feature_get_refcount(spa,
3885 &spa_feature_table[f], &refcount);
3886 if (dataset_feature_count[f] != refcount) {
3887 (void) printf("%s feature refcount mismatch: "
3888 "%lld datasets != %lld refcount\n",
3889 spa_feature_table[f].fi_uname,
3890 (longlong_t)dataset_feature_count[f],
3891 (longlong_t)refcount);
3892 rc = 2;
3893 } else {
3894 (void) printf("Verified %s feature refcount "
3895 "of %llu is correct\n",
3896 spa_feature_table[f].fi_uname,
3897 (longlong_t)refcount);
3898 }
3899 }
3900
3901 if (rc == 0) {
3902 rc = verify_device_removal_feature_counts(spa);
3903 }
3904 }
3905 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3906 rc = dump_block_stats(spa);
3907
3908 if (rc == 0)
3909 rc = verify_spacemap_refcounts(spa);
3910
3911 if (dump_opt['s'])
3912 show_pool_stats(spa);
3913
3914 if (dump_opt['h'])
3915 dump_history(spa);
3916
3917 if (rc != 0) {
3918 dump_debug_buffer();
3919 exit(rc);
3920 }
3921 }
3922
3923 #define ZDB_FLAG_CHECKSUM 0x0001
3924 #define ZDB_FLAG_DECOMPRESS 0x0002
3925 #define ZDB_FLAG_BSWAP 0x0004
3926 #define ZDB_FLAG_GBH 0x0008
3927 #define ZDB_FLAG_INDIRECT 0x0010
3928 #define ZDB_FLAG_PHYS 0x0020
3929 #define ZDB_FLAG_RAW 0x0040
3930 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3931
3932 static int flagbits[256];
3933
3934 static void
3935 zdb_print_blkptr(blkptr_t *bp, int flags)
3936 {
3937 char blkbuf[BP_SPRINTF_LEN];
3938
3939 if (flags & ZDB_FLAG_BSWAP)
3940 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3941
3942 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3943 (void) printf("%s\n", blkbuf);
3944 }
3945
3946 static void
3947 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3948 {
3949 int i;
3950
3951 for (i = 0; i < nbps; i++)
3952 zdb_print_blkptr(&bp[i], flags);
3953 }
3954
3955 static void
3956 zdb_dump_gbh(void *buf, int flags)
3957 {
3958 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3959 }
3960
3961 static void
3962 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3963 {
3964 if (flags & ZDB_FLAG_BSWAP)
3965 byteswap_uint64_array(buf, size);
3966 (void) write(1, buf, size);
3967 }
3968
3969 static void
3970 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3971 {
3972 uint64_t *d = (uint64_t *)buf;
3973 unsigned nwords = size / sizeof (uint64_t);
3974 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3975 unsigned i, j;
3976 const char *hdr;
3977 char *c;
3978
3979
3980 if (do_bswap)
3981 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3982 else
3983 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3984
3985 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3986
3987 for (i = 0; i < nwords; i += 2) {
3988 (void) printf("%06llx: %016llx %016llx ",
3989 (u_longlong_t)(i * sizeof (uint64_t)),
3990 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3991 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3992
3993 c = (char *)&d[i];
3994 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3995 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3996 (void) printf("\n");
3997 }
3998 }
3999
4000 /*
4001 * There are two acceptable formats:
4002 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
4003 * child[.child]* - For example: 0.1.1
4004 *
4005 * The second form can be used to specify arbitrary vdevs anywhere
4006 * in the heirarchy. For example, in a pool with a mirror of
4007 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
4008 */
4009 static vdev_t *
4010 zdb_vdev_lookup(vdev_t *vdev, const char *path)
4011 {
4012 char *s, *p, *q;
4013 unsigned i;
4014
4015 if (vdev == NULL)
4016 return (NULL);
4017
4018 /* First, assume the x.x.x.x format */
4019 i = strtoul(path, &s, 10);
4020 if (s == path || (s && *s != '.' && *s != '\0'))
4021 goto name;
4022 if (i >= vdev->vdev_children)
4023 return (NULL);
4024
4025 vdev = vdev->vdev_child[i];
4026 if (*s == '\0')
4027 return (vdev);
4028 return (zdb_vdev_lookup(vdev, s+1));
4029
4030 name:
4031 for (i = 0; i < vdev->vdev_children; i++) {
4032 vdev_t *vc = vdev->vdev_child[i];
4033
4034 if (vc->vdev_path == NULL) {
4035 vc = zdb_vdev_lookup(vc, path);
4036 if (vc == NULL)
4037 continue;
4038 else
4039 return (vc);
4040 }
4041
4042 p = strrchr(vc->vdev_path, '/');
4043 p = p ? p + 1 : vc->vdev_path;
4044 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
4045
4046 if (strcmp(vc->vdev_path, path) == 0)
4047 return (vc);
4048 if (strcmp(p, path) == 0)
4049 return (vc);
4050 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
4051 return (vc);
4052 }
4053
4054 return (NULL);
4055 }
4056
4057 /* ARGSUSED */
4058 static int
4059 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused)
4060 {
4061 return (random_get_pseudo_bytes(buf, len));
4062 }
4063
4064 /*
4065 * Read a block from a pool and print it out. The syntax of the
4066 * block descriptor is:
4067 *
4068 * pool:vdev_specifier:offset:size[:flags]
4069 *
4070 * pool - The name of the pool you wish to read from
4071 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
4072 * offset - offset, in hex, in bytes
4073 * size - Amount of data to read, in hex, in bytes
4074 * flags - A string of characters specifying options
4075 * b: Decode a blkptr at given offset within block
4076 * *c: Calculate and display checksums
4077 * d: Decompress data before dumping
4078 * e: Byteswap data before dumping
4079 * g: Display data as a gang block header
4080 * i: Display as an indirect block
4081 * p: Do I/O to physical offset
4082 * r: Dump raw data to stdout
4083 *
4084 * * = not yet implemented
4085 */
4086 static void
4087 zdb_read_block(char *thing, spa_t *spa)
4088 {
4089 blkptr_t blk, *bp = &blk;
4090 dva_t *dva = bp->blk_dva;
4091 int flags = 0;
4092 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
4093 zio_t *zio;
4094 vdev_t *vd;
4095 abd_t *pabd;
4096 void *lbuf, *buf;
4097 const char *s, *vdev;
4098 char *p, *dup, *flagstr;
4099 int i, error;
4100
4101 dup = strdup(thing);
4102 s = strtok(dup, ":");
4103 vdev = s ? s : "";
4104 s = strtok(NULL, ":");
4105 offset = strtoull(s ? s : "", NULL, 16);
4106 s = strtok(NULL, ":");
4107 size = strtoull(s ? s : "", NULL, 16);
4108 s = strtok(NULL, ":");
4109 if (s)
4110 flagstr = strdup(s);
4111 else
4112 flagstr = strdup("");
4113
4114 s = NULL;
4115 if (size == 0)
4116 s = "size must not be zero";
4117 if (!IS_P2ALIGNED(size, DEV_BSIZE))
4118 s = "size must be a multiple of sector size";
4119 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
4120 s = "offset must be a multiple of sector size";
4121 if (s) {
4122 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
4123 free(dup);
4124 return;
4125 }
4126
4127 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
4128 for (i = 0; flagstr[i]; i++) {
4129 int bit = flagbits[(uchar_t)flagstr[i]];
4130
4131 if (bit == 0) {
4132 (void) printf("***Invalid flag: %c\n",
4133 flagstr[i]);
4134 continue;
4135 }
4136 flags |= bit;
4137
4138 /* If it's not something with an argument, keep going */
4139 if ((bit & (ZDB_FLAG_CHECKSUM |
4140 ZDB_FLAG_PRINT_BLKPTR)) == 0)
4141 continue;
4142
4143 p = &flagstr[i + 1];
4144 if (bit == ZDB_FLAG_PRINT_BLKPTR)
4145 blkptr_offset = strtoull(p, &p, 16);
4146 if (*p != ':' && *p != '\0') {
4147 (void) printf("***Invalid flag arg: '%s'\n", s);
4148 free(dup);
4149 return;
4150 }
4151 }
4152 }
4153 free(flagstr);
4154
4155 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
4156 if (vd == NULL) {
4157 (void) printf("***Invalid vdev: %s\n", vdev);
4158 free(dup);
4159 return;
4160 } else {
4161 if (vd->vdev_path)
4162 (void) fprintf(stderr, "Found vdev: %s\n",
4163 vd->vdev_path);
4164 else
4165 (void) fprintf(stderr, "Found vdev type: %s\n",
4166 vd->vdev_ops->vdev_op_type);
4167 }
4168
4169 psize = size;
4170 lsize = size;
4171
4172 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE);
4173 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4174
4175 BP_ZERO(bp);
4176
4177 DVA_SET_VDEV(&dva[0], vd->vdev_id);
4178 DVA_SET_OFFSET(&dva[0], offset);
4179 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
4180 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
4181
4182 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
4183
4184 BP_SET_LSIZE(bp, lsize);
4185 BP_SET_PSIZE(bp, psize);
4186 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
4187 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
4188 BP_SET_TYPE(bp, DMU_OT_NONE);
4189 BP_SET_LEVEL(bp, 0);
4190 BP_SET_DEDUP(bp, 0);
4191 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
4192
4193 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
4194 zio = zio_root(spa, NULL, NULL, 0);
4195
4196 if (vd == vd->vdev_top) {
4197 /*
4198 * Treat this as a normal block read.
4199 */
4200 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
4201 ZIO_PRIORITY_SYNC_READ,
4202 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
4203 } else {
4204 /*
4205 * Treat this as a vdev child I/O.
4206 */
4207 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
4208 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
4209 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
4210 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
4211 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL,
4212 NULL, NULL));
4213 }
4214
4215 error = zio_wait(zio);
4216 spa_config_exit(spa, SCL_STATE, FTAG);
4217
4218 if (error) {
4219 (void) printf("Read of %s failed, error: %d\n", thing, error);
4220 goto out;
4221 }
4222
4223 if (flags & ZDB_FLAG_DECOMPRESS) {
4224 /*
4225 * We don't know how the data was compressed, so just try
4226 * every decompress function at every inflated blocksize.
4227 */
4228 enum zio_compress c;
4229 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4230 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4231
4232 abd_copy_to_buf(pbuf2, pabd, psize);
4233
4234 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize,
4235 random_get_pseudo_bytes_cb, NULL));
4236
4237 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
4238 SPA_MAXBLOCKSIZE - psize));
4239
4240 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
4241 lsize -= SPA_MINBLOCKSIZE) {
4242 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
4243 if (zio_decompress_data(c, pabd,
4244 lbuf, psize, lsize) == 0 &&
4245 zio_decompress_data_buf(c, pbuf2,
4246 lbuf2, psize, lsize) == 0 &&
4247 bcmp(lbuf, lbuf2, lsize) == 0)
4248 break;
4249 }
4250 if (c != ZIO_COMPRESS_FUNCTIONS)
4251 break;
4252 lsize -= SPA_MINBLOCKSIZE;
4253 }
4254
4255 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
4256 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
4257
4258 if (lsize <= psize) {
4259 (void) printf("Decompress of %s failed\n", thing);
4260 goto out;
4261 }
4262 buf = lbuf;
4263 size = lsize;
4264 } else {
4265 buf = abd_to_buf(pabd);
4266 size = psize;
4267 }
4268
4269 if (flags & ZDB_FLAG_PRINT_BLKPTR)
4270 zdb_print_blkptr((blkptr_t *)(void *)
4271 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
4272 else if (flags & ZDB_FLAG_RAW)
4273 zdb_dump_block_raw(buf, size, flags);
4274 else if (flags & ZDB_FLAG_INDIRECT)
4275 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
4276 flags);
4277 else if (flags & ZDB_FLAG_GBH)
4278 zdb_dump_gbh(buf, flags);
4279 else
4280 zdb_dump_block(thing, buf, size, flags);
4281
4282 out:
4283 abd_free(pabd);
4284 umem_free(lbuf, SPA_MAXBLOCKSIZE);
4285 free(dup);
4286 }
4287
4288 static void
4289 zdb_embedded_block(char *thing)
4290 {
4291 blkptr_t bp;
4292 unsigned long long *words = (void *)&bp;
4293 char buf[SPA_MAXBLOCKSIZE];
4294 int err;
4295
4296 bzero(&bp, sizeof (bp));
4297 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
4298 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
4299 words + 0, words + 1, words + 2, words + 3,
4300 words + 4, words + 5, words + 6, words + 7,
4301 words + 8, words + 9, words + 10, words + 11,
4302 words + 12, words + 13, words + 14, words + 15);
4303 if (err != 16) {
4304 (void) printf("invalid input format\n");
4305 exit(1);
4306 }
4307 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
4308 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
4309 if (err != 0) {
4310 (void) printf("decode failed: %u\n", err);
4311 exit(1);
4312 }
4313 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
4314 }
4315
4316 static boolean_t
4317 pool_match(nvlist_t *cfg, char *tgt)
4318 {
4319 uint64_t v, guid = strtoull(tgt, NULL, 0);
4320 char *s;
4321
4322 if (guid != 0) {
4323 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
4324 return (v == guid);
4325 } else {
4326 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
4327 return (strcmp(s, tgt) == 0);
4328 }
4329 return (B_FALSE);
4330 }
4331
4332 static char *
4333 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
4334 {
4335 nvlist_t *pools;
4336 nvlist_t *match = NULL;
4337 char *name = NULL;
4338 char *sepp = NULL;
4339 char sep = '\0';
4340 int count = 0;
4341 importargs_t args;
4342
4343 bzero(&args, sizeof (args));
4344 args.paths = dirc;
4345 args.path = dirv;
4346 args.can_be_active = B_TRUE;
4347
4348 if ((sepp = strpbrk(*target, "/@")) != NULL) {
4349 sep = *sepp;
4350 *sepp = '\0';
4351 }
4352
4353 pools = zpool_search_import(g_zfs, &args);
4354
4355 if (pools != NULL) {
4356 nvpair_t *elem = NULL;
4357 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
4358 verify(nvpair_value_nvlist(elem, configp) == 0);
4359 if (pool_match(*configp, *target)) {
4360 count++;
4361 if (match != NULL) {
4362 /* print previously found config */
4363 if (name != NULL) {
4364 (void) printf("%s\n", name);
4365 dump_nvlist(match, 8);
4366 name = NULL;
4367 }
4368 (void) printf("%s\n",
4369 nvpair_name(elem));
4370 dump_nvlist(*configp, 8);
4371 } else {
4372 match = *configp;
4373 name = nvpair_name(elem);
4374 }
4375 }
4376 }
4377 }
4378 if (count > 1)
4379 (void) fatal("\tMatched %d pools - use pool GUID "
4380 "instead of pool name or \n"
4381 "\tpool name part of a dataset name to select pool", count);
4382
4383 if (sepp)
4384 *sepp = sep;
4385 /*
4386 * If pool GUID was specified for pool id, replace it with pool name
4387 */
4388 if (name && (strstr(*target, name) != *target)) {
4389 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
4390
4391 *target = umem_alloc(sz, UMEM_NOFAIL);
4392 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
4393 }
4394
4395 *configp = name ? match : NULL;
4396
4397 return (name);
4398 }
4399
4400 int
4401 main(int argc, char **argv)
4402 {
4403 int c;
4404 struct rlimit rl = { 1024, 1024 };
4405 spa_t *spa = NULL;
4406 objset_t *os = NULL;
4407 int dump_all = 1;
4408 int verbose = 0;
4409 int error = 0;
4410 char **searchdirs = NULL;
4411 int nsearch = 0;
4412 char *target;
4413 nvlist_t *policy = NULL;
4414 uint64_t max_txg = UINT64_MAX;
4415 int flags = ZFS_IMPORT_MISSING_LOG;
4416 int rewind = ZPOOL_NEVER_REWIND;
4417 char *spa_config_path_env;
4418 boolean_t target_is_spa = B_TRUE;
4419
4420 (void) setrlimit(RLIMIT_NOFILE, &rl);
4421 (void) enable_extended_FILE_stdio(-1, -1);
4422
4423 dprintf_setup(&argc, argv);
4424
4425 /*
4426 * If there is an environment variable SPA_CONFIG_PATH it overrides
4427 * default spa_config_path setting. If -U flag is specified it will
4428 * override this environment variable settings once again.
4429 */
4430 spa_config_path_env = getenv("SPA_CONFIG_PATH");
4431 if (spa_config_path_env != NULL)
4432 spa_config_path = spa_config_path_env;
4433
4434 while ((c = getopt(argc, argv,
4435 "AbcCdDeEFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
4436 switch (c) {
4437 case 'b':
4438 case 'c':
4439 case 'C':
4440 case 'd':
4441 case 'D':
4442 case 'E':
4443 case 'G':
4444 case 'h':
4445 case 'i':
4446 case 'l':
4447 case 'm':
4448 case 'M':
4449 case 'O':
4450 case 'R':
4451 case 's':
4452 case 'S':
4453 case 'u':
4454 dump_opt[c]++;
4455 dump_all = 0;
4456 break;
4457 case 'A':
4458 case 'e':
4459 case 'F':
4460 case 'L':
4461 case 'P':
4462 case 'q':
4463 case 'X':
4464 dump_opt[c]++;
4465 break;
4466 /* NB: Sort single match options below. */
4467 case 'I':
4468 max_inflight = strtoull(optarg, NULL, 0);
4469 if (max_inflight == 0) {
4470 (void) fprintf(stderr, "maximum number "
4471 "of inflight I/Os must be greater "
4472 "than 0\n");
4473 usage();
4474 }
4475 break;
4476 case 'o':
4477 error = set_global_var(optarg);
4478 if (error != 0)
4479 usage();
4480 break;
4481 case 'p':
4482 if (searchdirs == NULL) {
4483 searchdirs = umem_alloc(sizeof (char *),
4484 UMEM_NOFAIL);
4485 } else {
4486 char **tmp = umem_alloc((nsearch + 1) *
4487 sizeof (char *), UMEM_NOFAIL);
4488 bcopy(searchdirs, tmp, nsearch *
4489 sizeof (char *));
4490 umem_free(searchdirs,
4491 nsearch * sizeof (char *));
4492 searchdirs = tmp;
4493 }
4494 searchdirs[nsearch++] = optarg;
4495 break;
4496 case 't':
4497 max_txg = strtoull(optarg, NULL, 0);
4498 if (max_txg < TXG_INITIAL) {
4499 (void) fprintf(stderr, "incorrect txg "
4500 "specified: %s\n", optarg);
4501 usage();
4502 }
4503 break;
4504 case 'U':
4505 spa_config_path = optarg;
4506 if (spa_config_path[0] != '/') {
4507 (void) fprintf(stderr,
4508 "cachefile must be an absolute path "
4509 "(i.e. start with a slash)\n");
4510 usage();
4511 }
4512 break;
4513 case 'v':
4514 verbose++;
4515 break;
4516 case 'V':
4517 flags = ZFS_IMPORT_VERBATIM;
4518 break;
4519 case 'x':
4520 vn_dumpdir = optarg;
4521 break;
4522 default:
4523 usage();
4524 break;
4525 }
4526 }
4527
4528 if (!dump_opt['e'] && searchdirs != NULL) {
4529 (void) fprintf(stderr, "-p option requires use of -e\n");
4530 usage();
4531 }
4532
4533 /*
4534 * ZDB does not typically re-read blocks; therefore limit the ARC
4535 * to 256 MB, which can be used entirely for metadata.
4536 */
4537 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
4538
4539 /*
4540 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
4541 * "zdb -b" uses traversal prefetch which uses async reads.
4542 * For good performance, let several of them be active at once.
4543 */
4544 zfs_vdev_async_read_max_active = 10;
4545
4546 /*
4547 * Disable reference tracking for better performance.
4548 */
4549 reference_tracking_enable = B_FALSE;
4550
4551 /*
4552 * Do not fail spa_load when spa_load_verify fails. This is needed
4553 * to load non-idle pools.
4554 */
4555 spa_load_verify_dryrun = B_TRUE;
4556
4557 kernel_init(FREAD);
4558 g_zfs = libzfs_init();
4559 ASSERT(g_zfs != NULL);
4560
4561 if (dump_all)
4562 verbose = MAX(verbose, 1);
4563
4564 for (c = 0; c < 256; c++) {
4565 if (dump_all && strchr("AeEFlLOPRSX", c) == NULL)
4566 dump_opt[c] = 1;
4567 if (dump_opt[c])
4568 dump_opt[c] += verbose;
4569 }
4570
4571 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
4572 zfs_recover = (dump_opt['A'] > 1);
4573
4574 argc -= optind;
4575 argv += optind;
4576
4577 if (argc < 2 && dump_opt['R'])
4578 usage();
4579
4580 if (dump_opt['E']) {
4581 if (argc != 1)
4582 usage();
4583 zdb_embedded_block(argv[0]);
4584 return (0);
4585 }
4586
4587 if (argc < 1) {
4588 if (!dump_opt['e'] && dump_opt['C']) {
4589 dump_cachefile(spa_config_path);
4590 return (0);
4591 }
4592 usage();
4593 }
4594
4595 if (dump_opt['l'])
4596 return (dump_label(argv[0]));
4597
4598 if (dump_opt['O']) {
4599 if (argc != 2)
4600 usage();
4601 dump_opt['v'] = verbose + 3;
4602 return (dump_path(argv[0], argv[1]));
4603 }
4604
4605 if (dump_opt['X'] || dump_opt['F'])
4606 rewind = ZPOOL_DO_REWIND |
4607 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
4608
4609 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
4610 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
4611 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
4612 fatal("internal error: %s", strerror(ENOMEM));
4613
4614 error = 0;
4615 target = argv[0];
4616
4617 if (dump_opt['e']) {
4618 nvlist_t *cfg = NULL;
4619 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
4620
4621 error = ENOENT;
4622 if (name) {
4623 if (dump_opt['C'] > 1) {
4624 (void) printf("\nConfiguration for import:\n");
4625 dump_nvlist(cfg, 8);
4626 }
4627 if (nvlist_add_nvlist(cfg,
4628 ZPOOL_REWIND_POLICY, policy) != 0) {
4629 fatal("can't open '%s': %s",
4630 target, strerror(ENOMEM));
4631 }
4632 error = spa_import(name, cfg, NULL, flags);
4633 }
4634 }
4635
4636 if (strpbrk(target, "/@") != NULL) {
4637 size_t targetlen;
4638
4639 target_is_spa = B_FALSE;
4640 /*
4641 * Remove any trailing slash. Later code would get confused
4642 * by it, but we want to allow it so that "pool/" can
4643 * indicate that we want to dump the topmost filesystem,
4644 * rather than the whole pool.
4645 */
4646 targetlen = strlen(target);
4647 if (targetlen != 0 && target[targetlen - 1] == '/')
4648 target[targetlen - 1] = '\0';
4649 }
4650
4651 if (error == 0) {
4652 if (target_is_spa || dump_opt['R']) {
4653 error = spa_open_rewind(target, &spa, FTAG, policy,
4654 NULL);
4655 if (error) {
4656 /*
4657 * If we're missing the log device then
4658 * try opening the pool after clearing the
4659 * log state.
4660 */
4661 mutex_enter(&spa_namespace_lock);
4662 if ((spa = spa_lookup(target)) != NULL &&
4663 spa->spa_log_state == SPA_LOG_MISSING) {
4664 spa->spa_log_state = SPA_LOG_CLEAR;
4665 error = 0;
4666 }
4667 mutex_exit(&spa_namespace_lock);
4668
4669 if (!error) {
4670 error = spa_open_rewind(target, &spa,
4671 FTAG, policy, NULL);
4672 }
4673 }
4674 } else {
4675 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
4676 }
4677 }
4678 nvlist_free(policy);
4679
4680 if (error)
4681 fatal("can't open '%s': %s", target, strerror(error));
4682
4683 argv++;
4684 argc--;
4685 if (!dump_opt['R']) {
4686 if (argc > 0) {
4687 zopt_objects = argc;
4688 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
4689 for (unsigned i = 0; i < zopt_objects; i++) {
4690 errno = 0;
4691 zopt_object[i] = strtoull(argv[i], NULL, 0);
4692 if (zopt_object[i] == 0 && errno != 0)
4693 fatal("bad number %s: %s",
4694 argv[i], strerror(errno));
4695 }
4696 }
4697 if (os != NULL) {
4698 dump_dir(os);
4699 } else if (zopt_objects > 0 && !dump_opt['m']) {
4700 dump_dir(spa->spa_meta_objset);
4701 } else {
4702 dump_zpool(spa);
4703 }
4704 } else {
4705 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
4706 flagbits['c'] = ZDB_FLAG_CHECKSUM;
4707 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
4708 flagbits['e'] = ZDB_FLAG_BSWAP;
4709 flagbits['g'] = ZDB_FLAG_GBH;
4710 flagbits['i'] = ZDB_FLAG_INDIRECT;
4711 flagbits['p'] = ZDB_FLAG_PHYS;
4712 flagbits['r'] = ZDB_FLAG_RAW;
4713
4714 for (int i = 0; i < argc; i++)
4715 zdb_read_block(argv[i], spa);
4716 }
4717
4718 if (os != NULL)
4719 close_objset(os, FTAG);
4720 else
4721 spa_close(spa, FTAG);
4722
4723 fuid_table_destroy();
4724
4725 dump_debug_buffer();
4726
4727 libzfs_fini(g_zfs);
4728 kernel_fini();
4729
4730 return (0);
4731 }