1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2017 Nexenta Systems, Inc.
27 * 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 : DMU_OT_NUMTYPES))
83
84 #ifndef lint
85 extern int reference_tracking_enable;
86 extern boolean_t zfs_recover;
87 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
88 extern int zfs_vdev_async_read_max_active;
89 #else
90 int reference_tracking_enable;
91 boolean_t zfs_recover;
92 uint64_t zfs_arc_max, zfs_arc_meta_limit;
93 int zfs_vdev_async_read_max_active;
94 #endif
95
96 static const char cmdname[] = "zdb";
97 uint8_t dump_opt[256];
98 extern int aok;
99
100 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
101
102 uint64_t *zopt_object = NULL;
103 static unsigned zopt_objects = 0;
104 libzfs_handle_t *g_zfs;
105 uint64_t max_inflight = 1000;
106
107 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
108
109 /*
110 * These libumem hooks provide a reasonable set of defaults for the allocator's
111 * debugging facilities.
112 */
113 const char *
114 _umem_debug_init()
115 {
116 return ("default,verbose"); /* $UMEM_DEBUG setting */
117 }
118
119 const char *
120 _umem_logging_init(void)
121 {
122 return ("fail,contents"); /* $UMEM_LOGGING setting */
123 }
124
125 static void
126 usage(void)
127 {
128 (void) fprintf(stderr,
129 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] "
130 "[-I <inflight I/Os>]\n"
131 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
132 "\t\t[<poolname> [<object> ...]]\n"
133 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> "
134 "[<object> ...]\n"
135 "\t%s -C [-A] [-U <cache>]\n"
136 "\t%s -l [-Aqu] <device>\n"
137 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
138 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
139 "\t%s -O <dataset> <path>\n"
140 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
141 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
142 "\t%s -E [-A] word0:word1:...:word15\n"
143 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
144 "<poolname>\n\n",
145 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
146 cmdname, cmdname);
147
148 (void) fprintf(stderr, " Dataset name must include at least one "
149 "separator character '/' or '@'\n");
150 (void) fprintf(stderr, " If dataset name is specified, only that "
151 "dataset is dumped\n");
152 (void) fprintf(stderr, " If object numbers are specified, only "
153 "those objects are dumped\n\n");
154 (void) fprintf(stderr, " Options to control amount of output:\n");
155 (void) fprintf(stderr, " -b block statistics\n");
156 (void) fprintf(stderr, " -c checksum all metadata (twice for "
157 "all data) blocks\n");
158 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
159 (void) fprintf(stderr, " -d dataset(s)\n");
160 (void) fprintf(stderr, " -D dedup statistics\n");
161 (void) fprintf(stderr, " -E decode and display block from an "
162 "embedded block pointer\n");
163 (void) fprintf(stderr, " -h pool history\n");
164 (void) fprintf(stderr, " -i intent logs\n");
165 (void) fprintf(stderr, " -l read label contents\n");
166 (void) fprintf(stderr, " -L disable leak tracking (do not "
167 "load spacemaps)\n");
168 (void) fprintf(stderr, " -m metaslabs\n");
169 (void) fprintf(stderr, " -M metaslab groups\n");
170 (void) fprintf(stderr, " -O perform object lookups by path\n");
171 (void) fprintf(stderr, " -R read and display block from a "
172 "device\n");
173 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
174 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
175 (void) fprintf(stderr, " -v verbose (applies to all "
176 "others)\n\n");
177 (void) fprintf(stderr, " Below options are intended for use "
178 "with other options:\n");
179 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
180 "panic recovery (-AA) or both (-AAA)\n");
181 (void) fprintf(stderr, " -e pool is exported/destroyed/"
182 "has altroot/not in a cachefile\n");
183 (void) fprintf(stderr, " -F attempt automatic rewind within "
184 "safe range of transaction groups\n");
185 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
186 "exiting\n");
187 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
188 "specify the maximum number of "
189 "checksumming I/Os [default is 200]\n");
190 (void) fprintf(stderr, " -o <variable>=<value> set global "
191 "variable to an unsigned 32-bit integer value\n");
192 (void) fprintf(stderr, " -p <path> -- use one or more with "
193 "-e to specify path to vdev dir\n");
194 (void) fprintf(stderr, " -P print numbers in parseable form\n");
195 (void) fprintf(stderr, " -q don't print label contents\n");
196 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
197 "searching for uberblocks\n");
198 (void) fprintf(stderr, " -u uberblock\n");
199 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
200 "cachefile\n");
201 (void) fprintf(stderr, " -V do verbatim import\n");
202 (void) fprintf(stderr, " -x <dumpdir> -- "
203 "dump all read blocks into specified directory\n");
204 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
205 "work with dataset)\n\n");
206 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
207 "to make only that option verbose\n");
208 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
209 exit(1);
210 }
211
212 static void
213 dump_debug_buffer()
214 {
215 if (dump_opt['G']) {
216 (void) printf("\n");
217 zfs_dbgmsg_print("zdb");
218 }
219 }
220
221 /*
222 * Called for usage errors that are discovered after a call to spa_open(),
223 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
224 */
225
226 static void
227 fatal(const char *fmt, ...)
228 {
229 va_list ap;
230
231 va_start(ap, fmt);
232 (void) fprintf(stderr, "%s: ", cmdname);
233 (void) vfprintf(stderr, fmt, ap);
234 va_end(ap);
235 (void) fprintf(stderr, "\n");
236
237 dump_debug_buffer();
238
239 exit(1);
240 }
241
242 /* ARGSUSED */
243 static void
244 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
245 {
246 nvlist_t *nv;
247 size_t nvsize = *(uint64_t *)data;
248 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
249
250 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
251
252 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
253
254 umem_free(packed, nvsize);
255
256 dump_nvlist(nv, 8);
257
258 nvlist_free(nv);
259 }
260
261 /* ARGSUSED */
262 static void
263 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
264 {
265 spa_history_phys_t *shp = data;
266
267 if (shp == NULL)
268 return;
269
270 (void) printf("\t\tpool_create_len = %llu\n",
271 (u_longlong_t)shp->sh_pool_create_len);
272 (void) printf("\t\tphys_max_off = %llu\n",
273 (u_longlong_t)shp->sh_phys_max_off);
274 (void) printf("\t\tbof = %llu\n",
275 (u_longlong_t)shp->sh_bof);
276 (void) printf("\t\teof = %llu\n",
277 (u_longlong_t)shp->sh_eof);
278 (void) printf("\t\trecords_lost = %llu\n",
279 (u_longlong_t)shp->sh_records_lost);
280 }
281
282 static void
283 zdb_nicenum(uint64_t num, char *buf, size_t buflen)
284 {
285 if (dump_opt['P'])
286 (void) snprintf(buf, buflen, "%llu", (longlong_t)num);
287 else
288 nicenum(num, buf, sizeof (buf));
289 }
290
291 static const char histo_stars[] = "****************************************";
292 static const uint64_t histo_width = sizeof (histo_stars) - 1;
293
294 static void
295 dump_histogram(const uint64_t *histo, int size, int offset)
296 {
297 int i;
298 int minidx = size - 1;
299 int maxidx = 0;
300 uint64_t max = 0;
301
302 for (i = 0; i < size; i++) {
303 if (histo[i] > max)
304 max = histo[i];
305 if (histo[i] > 0 && i > maxidx)
306 maxidx = i;
307 if (histo[i] > 0 && i < minidx)
308 minidx = i;
309 }
310
311 if (max < histo_width)
312 max = histo_width;
313
314 for (i = minidx; i <= maxidx; i++) {
315 (void) printf("\t\t\t%3u: %6llu %s\n",
316 i + offset, (u_longlong_t)histo[i],
317 &histo_stars[(max - histo[i]) * histo_width / max]);
318 }
319 }
320
321 static void
322 dump_zap_stats(objset_t *os, uint64_t object)
323 {
324 int error;
325 zap_stats_t zs;
326
327 error = zap_get_stats(os, object, &zs);
328 if (error)
329 return;
330
331 if (zs.zs_ptrtbl_len == 0) {
332 ASSERT(zs.zs_num_blocks == 1);
333 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
334 (u_longlong_t)zs.zs_blocksize,
335 (u_longlong_t)zs.zs_num_entries);
336 return;
337 }
338
339 (void) printf("\tFat ZAP stats:\n");
340
341 (void) printf("\t\tPointer table:\n");
342 (void) printf("\t\t\t%llu elements\n",
343 (u_longlong_t)zs.zs_ptrtbl_len);
344 (void) printf("\t\t\tzt_blk: %llu\n",
345 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
346 (void) printf("\t\t\tzt_numblks: %llu\n",
347 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
348 (void) printf("\t\t\tzt_shift: %llu\n",
349 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
350 (void) printf("\t\t\tzt_blks_copied: %llu\n",
351 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
352 (void) printf("\t\t\tzt_nextblk: %llu\n",
353 (u_longlong_t)zs.zs_ptrtbl_nextblk);
354
355 (void) printf("\t\tZAP entries: %llu\n",
356 (u_longlong_t)zs.zs_num_entries);
357 (void) printf("\t\tLeaf blocks: %llu\n",
358 (u_longlong_t)zs.zs_num_leafs);
359 (void) printf("\t\tTotal blocks: %llu\n",
360 (u_longlong_t)zs.zs_num_blocks);
361 (void) printf("\t\tzap_block_type: 0x%llx\n",
362 (u_longlong_t)zs.zs_block_type);
363 (void) printf("\t\tzap_magic: 0x%llx\n",
364 (u_longlong_t)zs.zs_magic);
365 (void) printf("\t\tzap_salt: 0x%llx\n",
366 (u_longlong_t)zs.zs_salt);
367
368 (void) printf("\t\tLeafs with 2^n pointers:\n");
369 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
370
371 (void) printf("\t\tBlocks with n*5 entries:\n");
372 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
373
374 (void) printf("\t\tBlocks n/10 full:\n");
375 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
376
377 (void) printf("\t\tEntries with n chunks:\n");
378 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
379
380 (void) printf("\t\tBuckets with n entries:\n");
381 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
382 }
383
384 /*ARGSUSED*/
385 static void
386 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
387 {
388 }
389
390 /*ARGSUSED*/
391 static void
392 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
393 {
394 (void) printf("\tUNKNOWN OBJECT TYPE\n");
395 }
396
397 /*ARGSUSED*/
398 static void
399 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
400 {
401 }
402
403 /*ARGSUSED*/
404 static void
405 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
406 {
407 }
408
409 /*ARGSUSED*/
410 static void
411 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
412 {
413 zap_cursor_t zc;
414 zap_attribute_t attr;
415 void *prop;
416 unsigned i;
417
418 dump_zap_stats(os, object);
419 (void) printf("\n");
420
421 for (zap_cursor_init(&zc, os, object);
422 zap_cursor_retrieve(&zc, &attr) == 0;
423 zap_cursor_advance(&zc)) {
424 (void) printf("\t\t%s = ", attr.za_name);
425 if (attr.za_num_integers == 0) {
426 (void) printf("\n");
427 continue;
428 }
429 prop = umem_zalloc(attr.za_num_integers *
430 attr.za_integer_length, UMEM_NOFAIL);
431 (void) zap_lookup(os, object, attr.za_name,
432 attr.za_integer_length, attr.za_num_integers, prop);
433 if (attr.za_integer_length == 1) {
434 (void) printf("%s", (char *)prop);
435 } else {
436 for (i = 0; i < attr.za_num_integers; i++) {
437 switch (attr.za_integer_length) {
438 case 2:
439 (void) printf("%u ",
440 ((uint16_t *)prop)[i]);
441 break;
442 case 4:
443 (void) printf("%u ",
444 ((uint32_t *)prop)[i]);
445 break;
446 case 8:
447 (void) printf("%lld ",
448 (u_longlong_t)((int64_t *)prop)[i]);
449 break;
450 }
451 }
452 }
453 (void) printf("\n");
454 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
455 }
456 zap_cursor_fini(&zc);
457 }
458
459 static void
460 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
461 {
462 bpobj_phys_t *bpop = data;
463 char bytes[32], comp[32], uncomp[32];
464
465 /* make sure the output won't get truncated */
466 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
467 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
468 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
469
470 if (bpop == NULL)
471 return;
472
473 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes));
474 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp));
475 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp));
476
477 (void) printf("\t\tnum_blkptrs = %llu\n",
478 (u_longlong_t)bpop->bpo_num_blkptrs);
479 (void) printf("\t\tbytes = %s\n", bytes);
480 if (size >= BPOBJ_SIZE_V1) {
481 (void) printf("\t\tcomp = %s\n", comp);
482 (void) printf("\t\tuncomp = %s\n", uncomp);
483 }
484 if (size >= sizeof (*bpop)) {
485 (void) printf("\t\tsubobjs = %llu\n",
486 (u_longlong_t)bpop->bpo_subobjs);
487 (void) printf("\t\tnum_subobjs = %llu\n",
488 (u_longlong_t)bpop->bpo_num_subobjs);
489 }
490
491 if (dump_opt['d'] < 5)
492 return;
493
494 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
495 char blkbuf[BP_SPRINTF_LEN];
496 blkptr_t bp;
497
498 int err = dmu_read(os, object,
499 i * sizeof (bp), sizeof (bp), &bp, 0);
500 if (err != 0) {
501 (void) printf("got error %u from dmu_read\n", err);
502 break;
503 }
504 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
505 (void) printf("\t%s\n", blkbuf);
506 }
507 }
508
509 /* ARGSUSED */
510 static void
511 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
512 {
513 dmu_object_info_t doi;
514
515 VERIFY0(dmu_object_info(os, object, &doi));
516 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
517
518 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
519 if (err != 0) {
520 (void) printf("got error %u from dmu_read\n", err);
521 kmem_free(subobjs, doi.doi_max_offset);
522 return;
523 }
524
525 int64_t last_nonzero = -1;
526 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
527 if (subobjs[i] != 0)
528 last_nonzero = i;
529 }
530
531 for (int64_t i = 0; i <= last_nonzero; i++) {
532 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
533 }
534 kmem_free(subobjs, doi.doi_max_offset);
535 }
536
537 /*ARGSUSED*/
538 static void
539 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
540 {
541 dump_zap_stats(os, object);
542 /* contents are printed elsewhere, properly decoded */
543 }
544
545 /*ARGSUSED*/
546 static void
547 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
548 {
549 zap_cursor_t zc;
550 zap_attribute_t attr;
551
552 dump_zap_stats(os, object);
553 (void) printf("\n");
554
555 for (zap_cursor_init(&zc, os, object);
556 zap_cursor_retrieve(&zc, &attr) == 0;
557 zap_cursor_advance(&zc)) {
558 (void) printf("\t\t%s = ", attr.za_name);
559 if (attr.za_num_integers == 0) {
560 (void) printf("\n");
561 continue;
562 }
563 (void) printf(" %llx : [%d:%d:%d]\n",
564 (u_longlong_t)attr.za_first_integer,
565 (int)ATTR_LENGTH(attr.za_first_integer),
566 (int)ATTR_BSWAP(attr.za_first_integer),
567 (int)ATTR_NUM(attr.za_first_integer));
568 }
569 zap_cursor_fini(&zc);
570 }
571
572 /*ARGSUSED*/
573 static void
574 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
575 {
576 zap_cursor_t zc;
577 zap_attribute_t attr;
578 uint16_t *layout_attrs;
579 unsigned i;
580
581 dump_zap_stats(os, object);
582 (void) printf("\n");
583
584 for (zap_cursor_init(&zc, os, object);
585 zap_cursor_retrieve(&zc, &attr) == 0;
586 zap_cursor_advance(&zc)) {
587 (void) printf("\t\t%s = [", attr.za_name);
588 if (attr.za_num_integers == 0) {
589 (void) printf("\n");
590 continue;
591 }
592
593 VERIFY(attr.za_integer_length == 2);
594 layout_attrs = umem_zalloc(attr.za_num_integers *
595 attr.za_integer_length, UMEM_NOFAIL);
596
597 VERIFY(zap_lookup(os, object, attr.za_name,
598 attr.za_integer_length,
599 attr.za_num_integers, layout_attrs) == 0);
600
601 for (i = 0; i != attr.za_num_integers; i++)
602 (void) printf(" %d ", (int)layout_attrs[i]);
603 (void) printf("]\n");
604 umem_free(layout_attrs,
605 attr.za_num_integers * attr.za_integer_length);
606 }
607 zap_cursor_fini(&zc);
608 }
609
610 /*ARGSUSED*/
611 static void
612 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
613 {
614 zap_cursor_t zc;
615 zap_attribute_t attr;
616 const char *typenames[] = {
617 /* 0 */ "not specified",
618 /* 1 */ "FIFO",
619 /* 2 */ "Character Device",
620 /* 3 */ "3 (invalid)",
621 /* 4 */ "Directory",
622 /* 5 */ "5 (invalid)",
623 /* 6 */ "Block Device",
624 /* 7 */ "7 (invalid)",
625 /* 8 */ "Regular File",
626 /* 9 */ "9 (invalid)",
627 /* 10 */ "Symbolic Link",
628 /* 11 */ "11 (invalid)",
629 /* 12 */ "Socket",
630 /* 13 */ "Door",
631 /* 14 */ "Event Port",
632 /* 15 */ "15 (invalid)",
633 };
634
635 dump_zap_stats(os, object);
636 (void) printf("\n");
637
638 for (zap_cursor_init(&zc, os, object);
639 zap_cursor_retrieve(&zc, &attr) == 0;
640 zap_cursor_advance(&zc)) {
641 (void) printf("\t\t%s = %lld (type: %s)\n",
642 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
643 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
644 }
645 zap_cursor_fini(&zc);
646 }
647
648 static int
649 get_dtl_refcount(vdev_t *vd)
650 {
651 int refcount = 0;
652
653 if (vd->vdev_ops->vdev_op_leaf) {
654 space_map_t *sm = vd->vdev_dtl_sm;
655
656 if (sm != NULL &&
657 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
658 return (1);
659 return (0);
660 }
661
662 for (unsigned c = 0; c < vd->vdev_children; c++)
663 refcount += get_dtl_refcount(vd->vdev_child[c]);
664 return (refcount);
665 }
666
667 static int
668 get_metaslab_refcount(vdev_t *vd)
669 {
670 int refcount = 0;
671
672 if (vd->vdev_top == vd && !vd->vdev_removing) {
673 for (unsigned m = 0; m < vd->vdev_ms_count; m++) {
674 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
675
676 if (sm != NULL &&
677 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
678 refcount++;
679 }
680 }
681 for (unsigned c = 0; c < vd->vdev_children; c++)
682 refcount += get_metaslab_refcount(vd->vdev_child[c]);
683
684 return (refcount);
685 }
686
687 static int
688 verify_spacemap_refcounts(spa_t *spa)
689 {
690 uint64_t expected_refcount = 0;
691 uint64_t actual_refcount;
692
693 (void) feature_get_refcount(spa,
694 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
695 &expected_refcount);
696 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
697 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
698
699 if (expected_refcount != actual_refcount) {
700 (void) printf("space map refcount mismatch: expected %lld != "
701 "actual %lld\n",
702 (longlong_t)expected_refcount,
703 (longlong_t)actual_refcount);
704 return (2);
705 }
706 return (0);
707 }
708
709 static void
710 dump_spacemap(objset_t *os, space_map_t *sm)
711 {
712 uint64_t alloc, offset, entry;
713 const char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
714 "INVALID", "INVALID", "INVALID", "INVALID" };
715
716 if (sm == NULL)
717 return;
718
719 /*
720 * Print out the freelist entries in both encoded and decoded form.
721 */
722 alloc = 0;
723 for (offset = 0; offset < space_map_length(sm);
724 offset += sizeof (entry)) {
725 uint8_t mapshift = sm->sm_shift;
726
727 VERIFY0(dmu_read(os, space_map_object(sm), offset,
728 sizeof (entry), &entry, DMU_READ_PREFETCH));
729 if (SM_DEBUG_DECODE(entry)) {
730
731 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
732 (u_longlong_t)(offset / sizeof (entry)),
733 ddata[SM_DEBUG_ACTION_DECODE(entry)],
734 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
735 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
736 } else {
737 (void) printf("\t [%6llu] %c range:"
738 " %010llx-%010llx size: %06llx\n",
739 (u_longlong_t)(offset / sizeof (entry)),
740 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
741 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
742 mapshift) + sm->sm_start),
743 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
744 mapshift) + sm->sm_start +
745 (SM_RUN_DECODE(entry) << mapshift)),
746 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
747 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
748 alloc += SM_RUN_DECODE(entry) << mapshift;
749 else
750 alloc -= SM_RUN_DECODE(entry) << mapshift;
751 }
752 }
753 if (alloc != space_map_allocated(sm)) {
754 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
755 "with space map summary (%llu)\n",
756 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
757 }
758 }
759
760 static void
761 dump_metaslab_stats(metaslab_t *msp)
762 {
763 char maxbuf[32];
764 range_tree_t *rt = msp->ms_tree;
765 avl_tree_t *t = &msp->ms_size_tree;
766 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
767
768 /* max sure nicenum has enough space */
769 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ);
770
771 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf));
772
773 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
774 "segments", avl_numnodes(t), "maxsize", maxbuf,
775 "freepct", free_pct);
776 (void) printf("\tIn-memory histogram:\n");
777 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
778 }
779
780 static void
781 dump_metaslab(metaslab_t *msp)
782 {
783 vdev_t *vd = msp->ms_group->mg_vd;
784 spa_t *spa = vd->vdev_spa;
785 space_map_t *sm = msp->ms_sm;
786 char freebuf[32];
787
788 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf,
789 sizeof (freebuf));
790
791 (void) printf(
792 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
793 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
794 (u_longlong_t)space_map_object(sm), freebuf);
795
796 if (dump_opt['m'] > 2 && !dump_opt['L']) {
797 mutex_enter(&msp->ms_lock);
798 metaslab_load_wait(msp);
799 if (!msp->ms_loaded) {
800 VERIFY0(metaslab_load(msp));
801 range_tree_stat_verify(msp->ms_tree);
802 }
803 dump_metaslab_stats(msp);
804 metaslab_unload(msp);
805 mutex_exit(&msp->ms_lock);
806 }
807
808 if (dump_opt['m'] > 1 && sm != NULL &&
809 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
810 /*
811 * The space map histogram represents free space in chunks
812 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
813 */
814 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
815 (u_longlong_t)msp->ms_fragmentation);
816 dump_histogram(sm->sm_phys->smp_histogram,
817 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
818 }
819
820 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
821 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
822
823 mutex_enter(&msp->ms_lock);
824 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
825 mutex_exit(&msp->ms_lock);
826 }
827 }
828
829 static void
830 print_vdev_metaslab_header(vdev_t *vd)
831 {
832 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
833 (u_longlong_t)vd->vdev_id,
834 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
835 "offset", "spacemap", "free");
836 (void) printf("\t%15s %19s %15s %10s\n",
837 "---------------", "-------------------",
838 "---------------", "-------------");
839 }
840
841 static void
842 dump_metaslab_groups(spa_t *spa)
843 {
844 vdev_t *rvd = spa->spa_root_vdev;
845 metaslab_class_t *mc = spa_normal_class(spa);
846 uint64_t fragmentation;
847
848 metaslab_class_histogram_verify(mc);
849
850 for (unsigned c = 0; c < rvd->vdev_children; c++) {
851 vdev_t *tvd = rvd->vdev_child[c];
852 metaslab_group_t *mg = tvd->vdev_mg;
853
854 if (mg->mg_class != mc)
855 continue;
856
857 metaslab_group_histogram_verify(mg);
858 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
859
860 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
861 "fragmentation",
862 (u_longlong_t)tvd->vdev_id,
863 (u_longlong_t)tvd->vdev_ms_count);
864 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
865 (void) printf("%3s\n", "-");
866 } else {
867 (void) printf("%3llu%%\n",
868 (u_longlong_t)mg->mg_fragmentation);
869 }
870 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
871 }
872
873 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
874 fragmentation = metaslab_class_fragmentation(mc);
875 if (fragmentation == ZFS_FRAG_INVALID)
876 (void) printf("\t%3s\n", "-");
877 else
878 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
879 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
880 }
881
882 static void
883 dump_metaslabs(spa_t *spa)
884 {
885 vdev_t *vd, *rvd = spa->spa_root_vdev;
886 uint64_t m, c = 0, children = rvd->vdev_children;
887
888 (void) printf("\nMetaslabs:\n");
889
890 if (!dump_opt['d'] && zopt_objects > 0) {
891 c = zopt_object[0];
892
893 if (c >= children)
894 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
895
896 if (zopt_objects > 1) {
897 vd = rvd->vdev_child[c];
898 print_vdev_metaslab_header(vd);
899
900 for (m = 1; m < zopt_objects; m++) {
901 if (zopt_object[m] < vd->vdev_ms_count)
902 dump_metaslab(
903 vd->vdev_ms[zopt_object[m]]);
904 else
905 (void) fprintf(stderr, "bad metaslab "
906 "number %llu\n",
907 (u_longlong_t)zopt_object[m]);
908 }
909 (void) printf("\n");
910 return;
911 }
912 children = c + 1;
913 }
914 for (; c < children; c++) {
915 vd = rvd->vdev_child[c];
916 print_vdev_metaslab_header(vd);
917
918 for (m = 0; m < vd->vdev_ms_count; m++)
919 dump_metaslab(vd->vdev_ms[m]);
920 (void) printf("\n");
921 }
922 }
923
924 static void
925 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
926 {
927 const ddt_phys_t *ddp = dde->dde_phys;
928 const ddt_key_t *ddk = &dde->dde_key;
929 const char *types[4] = { "ditto", "single", "double", "triple" };
930 char blkbuf[BP_SPRINTF_LEN];
931 blkptr_t blk;
932
933 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
934 if (ddp->ddp_phys_birth == 0)
935 continue;
936 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
937 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
938 (void) printf("index %llx refcnt %llu %s %s\n",
939 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
940 types[p], blkbuf);
941 }
942 }
943
944 static void
945 dump_dedup_ratio(const ddt_stat_t *dds)
946 {
947 double rL, rP, rD, D, dedup, compress, copies;
948
949 if (dds->dds_blocks == 0)
950 return;
951
952 rL = (double)dds->dds_ref_lsize;
953 rP = (double)dds->dds_ref_psize;
954 rD = (double)dds->dds_ref_dsize;
955 D = (double)dds->dds_dsize;
956
957 dedup = rD / D;
958 compress = rL / rP;
959 copies = rD / rP;
960
961 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
962 "dedup * compress / copies = %.2f\n\n",
963 dedup, compress, copies, dedup * compress / copies);
964 }
965
966 static void
967 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
968 {
969 char name[DDT_NAMELEN];
970 ddt_entry_t dde;
971 uint64_t walk = 0;
972 dmu_object_info_t doi;
973 uint64_t count, dspace, mspace;
974 int error;
975
976 error = ddt_object_info(ddt, type, class, &doi);
977
978 if (error == ENOENT)
979 return;
980 ASSERT(error == 0);
981
982 if ((count = ddt_object_count(ddt, type, class)) == 0)
983 return;
984
985 dspace = doi.doi_physical_blocks_512 << 9;
986 mspace = doi.doi_fill_count * doi.doi_data_block_size;
987
988 ddt_object_name(ddt, type, class, name);
989
990 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
991 name,
992 (u_longlong_t)count,
993 (u_longlong_t)(dspace / count),
994 (u_longlong_t)(mspace / count));
995
996 if (dump_opt['D'] < 3)
997 return;
998
999 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
1000
1001 if (dump_opt['D'] < 4)
1002 return;
1003
1004 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
1005 return;
1006
1007 (void) printf("%s contents:\n\n", name);
1008
1009 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
1010 dump_dde(ddt, &dde, walk);
1011
1012 ASSERT(error == ENOENT);
1013
1014 (void) printf("\n");
1015 }
1016
1017 static void
1018 dump_all_ddts(spa_t *spa)
1019 {
1020 ddt_histogram_t ddh_total;
1021 ddt_stat_t dds_total;
1022
1023 bzero(&ddh_total, sizeof (ddh_total));
1024 bzero(&dds_total, sizeof (dds_total));
1025
1026 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1027 ddt_t *ddt = spa->spa_ddt[c];
1028 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1029 for (enum ddt_class class = 0; class < DDT_CLASSES;
1030 class++) {
1031 dump_ddt(ddt, type, class);
1032 }
1033 }
1034 }
1035
1036 ddt_get_dedup_stats(spa, &dds_total);
1037
1038 if (dds_total.dds_blocks == 0) {
1039 (void) printf("All DDTs are empty\n");
1040 return;
1041 }
1042
1043 (void) printf("\n");
1044
1045 if (dump_opt['D'] > 1) {
1046 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1047 ddt_get_dedup_histogram(spa, &ddh_total);
1048 zpool_dump_ddt(&dds_total, &ddh_total);
1049 }
1050
1051 dump_dedup_ratio(&dds_total);
1052 }
1053
1054 static void
1055 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1056 {
1057 char *prefix = arg;
1058
1059 (void) printf("%s [%llu,%llu) length %llu\n",
1060 prefix,
1061 (u_longlong_t)start,
1062 (u_longlong_t)(start + size),
1063 (u_longlong_t)(size));
1064 }
1065
1066 static void
1067 dump_dtl(vdev_t *vd, int indent)
1068 {
1069 spa_t *spa = vd->vdev_spa;
1070 boolean_t required;
1071 const char *name[DTL_TYPES] = { "missing", "partial", "scrub",
1072 "outage" };
1073 char prefix[256];
1074
1075 spa_vdev_state_enter(spa, SCL_NONE);
1076 required = vdev_dtl_required(vd);
1077 (void) spa_vdev_state_exit(spa, NULL, 0);
1078
1079 if (indent == 0)
1080 (void) printf("\nDirty time logs:\n\n");
1081
1082 (void) printf("\t%*s%s [%s]\n", indent, "",
1083 vd->vdev_path ? vd->vdev_path :
1084 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1085 required ? "DTL-required" : "DTL-expendable");
1086
1087 for (int t = 0; t < DTL_TYPES; t++) {
1088 range_tree_t *rt = vd->vdev_dtl[t];
1089 if (range_tree_space(rt) == 0)
1090 continue;
1091 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1092 indent + 2, "", name[t]);
1093 mutex_enter(rt->rt_lock);
1094 range_tree_walk(rt, dump_dtl_seg, prefix);
1095 mutex_exit(rt->rt_lock);
1096 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1097 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1098 }
1099
1100 for (unsigned c = 0; c < vd->vdev_children; c++)
1101 dump_dtl(vd->vdev_child[c], indent + 4);
1102 }
1103
1104 static void
1105 dump_history(spa_t *spa)
1106 {
1107 nvlist_t **events = NULL;
1108 uint64_t resid, len, off = 0;
1109 uint_t num = 0;
1110 int error;
1111 time_t tsec;
1112 struct tm t;
1113 char tbuf[30];
1114 char internalstr[MAXPATHLEN];
1115
1116 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
1117 do {
1118 len = SPA_MAXBLOCKSIZE;
1119
1120 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1121 (void) fprintf(stderr, "Unable to read history: "
1122 "error %d\n", error);
1123 umem_free(buf, SPA_MAXBLOCKSIZE);
1124 return;
1125 }
1126
1127 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1128 break;
1129
1130 off -= resid;
1131 } while (len != 0);
1132 umem_free(buf, SPA_MAXBLOCKSIZE);
1133
1134 (void) printf("\nHistory:\n");
1135 for (unsigned i = 0; i < num; i++) {
1136 uint64_t time, txg, ievent;
1137 char *cmd, *intstr;
1138 boolean_t printed = B_FALSE;
1139
1140 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1141 &time) != 0)
1142 goto next;
1143 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1144 &cmd) != 0) {
1145 if (nvlist_lookup_uint64(events[i],
1146 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1147 goto next;
1148 verify(nvlist_lookup_uint64(events[i],
1149 ZPOOL_HIST_TXG, &txg) == 0);
1150 verify(nvlist_lookup_string(events[i],
1151 ZPOOL_HIST_INT_STR, &intstr) == 0);
1152 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1153 goto next;
1154
1155 (void) snprintf(internalstr,
1156 sizeof (internalstr),
1157 "[internal %s txg:%ju] %s",
1158 zfs_history_event_names[ievent], (uintmax_t)txg,
1159 intstr);
1160 cmd = internalstr;
1161 }
1162 tsec = time;
1163 (void) localtime_r(&tsec, &t);
1164 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1165 (void) printf("%s %s\n", tbuf, cmd);
1166 printed = B_TRUE;
1167
1168 next:
1169 if (dump_opt['h'] > 1) {
1170 if (!printed)
1171 (void) printf("unrecognized record:\n");
1172 dump_nvlist(events[i], 2);
1173 }
1174 }
1175 }
1176
1177 /*ARGSUSED*/
1178 static void
1179 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1180 {
1181 }
1182
1183 static uint64_t
1184 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1185 const zbookmark_phys_t *zb)
1186 {
1187 if (dnp == NULL) {
1188 ASSERT(zb->zb_level < 0);
1189 if (zb->zb_object == 0)
1190 return (zb->zb_blkid);
1191 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1192 }
1193
1194 ASSERT(zb->zb_level >= 0);
1195
1196 return ((zb->zb_blkid <<
1197 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1198 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1199 }
1200
1201 static void
1202 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1203 {
1204 const dva_t *dva = bp->blk_dva;
1205 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1206
1207 if (dump_opt['b'] >= 6) {
1208 snprintf_blkptr(blkbuf, buflen, bp);
1209 return;
1210 }
1211
1212 if (BP_IS_EMBEDDED(bp)) {
1213 (void) sprintf(blkbuf,
1214 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1215 (int)BPE_GET_ETYPE(bp),
1216 (u_longlong_t)BPE_GET_LSIZE(bp),
1217 (u_longlong_t)BPE_GET_PSIZE(bp),
1218 (u_longlong_t)bp->blk_birth);
1219 return;
1220 }
1221
1222 blkbuf[0] = '\0';
1223 for (int i = 0; i < ndvas; i++)
1224 (void) snprintf(blkbuf + strlen(blkbuf),
1225 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1226 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1227 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1228 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1229
1230 if (BP_IS_HOLE(bp)) {
1231 (void) snprintf(blkbuf + strlen(blkbuf),
1232 buflen - strlen(blkbuf),
1233 "%llxL B=%llu",
1234 (u_longlong_t)BP_GET_LSIZE(bp),
1235 (u_longlong_t)bp->blk_birth);
1236 } else {
1237 (void) snprintf(blkbuf + strlen(blkbuf),
1238 buflen - strlen(blkbuf),
1239 "%llxL/%llxP F=%llu B=%llu/%llu",
1240 (u_longlong_t)BP_GET_LSIZE(bp),
1241 (u_longlong_t)BP_GET_PSIZE(bp),
1242 (u_longlong_t)BP_GET_FILL(bp),
1243 (u_longlong_t)bp->blk_birth,
1244 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1245 }
1246 }
1247
1248 static void
1249 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1250 const dnode_phys_t *dnp)
1251 {
1252 char blkbuf[BP_SPRINTF_LEN];
1253 int l;
1254
1255 if (!BP_IS_EMBEDDED(bp)) {
1256 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1257 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1258 }
1259
1260 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1261
1262 ASSERT(zb->zb_level >= 0);
1263
1264 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1265 if (l == zb->zb_level) {
1266 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1267 } else {
1268 (void) printf(" ");
1269 }
1270 }
1271
1272 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1273 (void) printf("%s\n", blkbuf);
1274 }
1275
1276 static int
1277 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1278 blkptr_t *bp, const zbookmark_phys_t *zb)
1279 {
1280 int err = 0;
1281
1282 if (bp->blk_birth == 0)
1283 return (0);
1284
1285 print_indirect(bp, zb, dnp);
1286
1287 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1288 arc_flags_t flags = ARC_FLAG_WAIT;
1289 int i;
1290 blkptr_t *cbp;
1291 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1292 arc_buf_t *buf;
1293 uint64_t fill = 0;
1294
1295 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1296 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1297 if (err)
1298 return (err);
1299 ASSERT(buf->b_data);
1300
1301 /* recursively visit blocks below this */
1302 cbp = buf->b_data;
1303 for (i = 0; i < epb; i++, cbp++) {
1304 zbookmark_phys_t czb;
1305
1306 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1307 zb->zb_level - 1,
1308 zb->zb_blkid * epb + i);
1309 err = visit_indirect(spa, dnp, cbp, &czb);
1310 if (err)
1311 break;
1312 fill += BP_GET_FILL(cbp);
1313 }
1314 if (!err)
1315 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1316 arc_buf_destroy(buf, &buf);
1317 }
1318
1319 return (err);
1320 }
1321
1322 /*ARGSUSED*/
1323 static void
1324 dump_indirect(dnode_t *dn)
1325 {
1326 dnode_phys_t *dnp = dn->dn_phys;
1327 int j;
1328 zbookmark_phys_t czb;
1329
1330 (void) printf("Indirect blocks:\n");
1331
1332 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1333 dn->dn_object, dnp->dn_nlevels - 1, 0);
1334 for (j = 0; j < dnp->dn_nblkptr; j++) {
1335 czb.zb_blkid = j;
1336 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1337 &dnp->dn_blkptr[j], &czb);
1338 }
1339
1340 (void) printf("\n");
1341 }
1342
1343 /*ARGSUSED*/
1344 static void
1345 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1346 {
1347 dsl_dir_phys_t *dd = data;
1348 time_t crtime;
1349 char nice[32];
1350
1351 /* make sure nicenum has enough space */
1352 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ);
1353
1354 if (dd == NULL)
1355 return;
1356
1357 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1358
1359 crtime = dd->dd_creation_time;
1360 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1361 (void) printf("\t\thead_dataset_obj = %llu\n",
1362 (u_longlong_t)dd->dd_head_dataset_obj);
1363 (void) printf("\t\tparent_dir_obj = %llu\n",
1364 (u_longlong_t)dd->dd_parent_obj);
1365 (void) printf("\t\torigin_obj = %llu\n",
1366 (u_longlong_t)dd->dd_origin_obj);
1367 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1368 (u_longlong_t)dd->dd_child_dir_zapobj);
1369 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice));
1370 (void) printf("\t\tused_bytes = %s\n", nice);
1371 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice));
1372 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1373 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice));
1374 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1375 zdb_nicenum(dd->dd_quota, nice, sizeof (nice));
1376 (void) printf("\t\tquota = %s\n", nice);
1377 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice));
1378 (void) printf("\t\treserved = %s\n", nice);
1379 (void) printf("\t\tprops_zapobj = %llu\n",
1380 (u_longlong_t)dd->dd_props_zapobj);
1381 (void) printf("\t\tdeleg_zapobj = %llu\n",
1382 (u_longlong_t)dd->dd_deleg_zapobj);
1383 (void) printf("\t\tflags = %llx\n",
1384 (u_longlong_t)dd->dd_flags);
1385
1386 #define DO(which) \
1387 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \
1388 sizeof (nice)); \
1389 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1390 DO(HEAD);
1391 DO(SNAP);
1392 DO(CHILD);
1393 DO(CHILD_RSRV);
1394 DO(REFRSRV);
1395 #undef DO
1396 }
1397
1398 /*ARGSUSED*/
1399 static void
1400 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1401 {
1402 dsl_dataset_phys_t *ds = data;
1403 time_t crtime;
1404 char used[32], compressed[32], uncompressed[32], unique[32];
1405 char blkbuf[BP_SPRINTF_LEN];
1406
1407 /* make sure nicenum has enough space */
1408 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ);
1409 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ);
1410 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ);
1411 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ);
1412
1413 if (ds == NULL)
1414 return;
1415
1416 ASSERT(size == sizeof (*ds));
1417 crtime = ds->ds_creation_time;
1418 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used));
1419 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed));
1420 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed,
1421 sizeof (uncompressed));
1422 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique));
1423 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1424
1425 (void) printf("\t\tdir_obj = %llu\n",
1426 (u_longlong_t)ds->ds_dir_obj);
1427 (void) printf("\t\tprev_snap_obj = %llu\n",
1428 (u_longlong_t)ds->ds_prev_snap_obj);
1429 (void) printf("\t\tprev_snap_txg = %llu\n",
1430 (u_longlong_t)ds->ds_prev_snap_txg);
1431 (void) printf("\t\tnext_snap_obj = %llu\n",
1432 (u_longlong_t)ds->ds_next_snap_obj);
1433 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1434 (u_longlong_t)ds->ds_snapnames_zapobj);
1435 (void) printf("\t\tnum_children = %llu\n",
1436 (u_longlong_t)ds->ds_num_children);
1437 (void) printf("\t\tuserrefs_obj = %llu\n",
1438 (u_longlong_t)ds->ds_userrefs_obj);
1439 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1440 (void) printf("\t\tcreation_txg = %llu\n",
1441 (u_longlong_t)ds->ds_creation_txg);
1442 (void) printf("\t\tdeadlist_obj = %llu\n",
1443 (u_longlong_t)ds->ds_deadlist_obj);
1444 (void) printf("\t\tused_bytes = %s\n", used);
1445 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1446 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1447 (void) printf("\t\tunique = %s\n", unique);
1448 (void) printf("\t\tfsid_guid = %llu\n",
1449 (u_longlong_t)ds->ds_fsid_guid);
1450 (void) printf("\t\tguid = %llu\n",
1451 (u_longlong_t)ds->ds_guid);
1452 (void) printf("\t\tflags = %llx\n",
1453 (u_longlong_t)ds->ds_flags);
1454 (void) printf("\t\tnext_clones_obj = %llu\n",
1455 (u_longlong_t)ds->ds_next_clones_obj);
1456 (void) printf("\t\tprops_obj = %llu\n",
1457 (u_longlong_t)ds->ds_props_obj);
1458 (void) printf("\t\tbp = %s\n", blkbuf);
1459 }
1460
1461 /* ARGSUSED */
1462 static int
1463 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1464 {
1465 char blkbuf[BP_SPRINTF_LEN];
1466
1467 if (bp->blk_birth != 0) {
1468 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1469 (void) printf("\t%s\n", blkbuf);
1470 }
1471 return (0);
1472 }
1473
1474 static void
1475 dump_bptree(objset_t *os, uint64_t obj, const char *name)
1476 {
1477 char bytes[32];
1478 bptree_phys_t *bt;
1479 dmu_buf_t *db;
1480
1481 /* make sure nicenum has enough space */
1482 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1483
1484 if (dump_opt['d'] < 3)
1485 return;
1486
1487 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1488 bt = db->db_data;
1489 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes));
1490 (void) printf("\n %s: %llu datasets, %s\n",
1491 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1492 dmu_buf_rele(db, FTAG);
1493
1494 if (dump_opt['d'] < 5)
1495 return;
1496
1497 (void) printf("\n");
1498
1499 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1500 }
1501
1502 /* ARGSUSED */
1503 static int
1504 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1505 {
1506 char blkbuf[BP_SPRINTF_LEN];
1507
1508 ASSERT(bp->blk_birth != 0);
1509 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1510 (void) printf("\t%s\n", blkbuf);
1511 return (0);
1512 }
1513
1514 static void
1515 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent)
1516 {
1517 char bytes[32];
1518 char comp[32];
1519 char uncomp[32];
1520
1521 /* make sure nicenum has enough space */
1522 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1523 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1524 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1525
1526 if (dump_opt['d'] < 3)
1527 return;
1528
1529 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes));
1530 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1531 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp));
1532 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp));
1533 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1534 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1535 indent * 8, name,
1536 (u_longlong_t)bpo->bpo_object,
1537 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1538 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1539 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1540 bytes, comp, uncomp);
1541
1542 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1543 uint64_t subobj;
1544 bpobj_t subbpo;
1545 int error;
1546 VERIFY0(dmu_read(bpo->bpo_os,
1547 bpo->bpo_phys->bpo_subobjs,
1548 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1549 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1550 if (error != 0) {
1551 (void) printf("ERROR %u while trying to open "
1552 "subobj id %llu\n",
1553 error, (u_longlong_t)subobj);
1554 continue;
1555 }
1556 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1557 bpobj_close(&subbpo);
1558 }
1559 } else {
1560 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1561 indent * 8, name,
1562 (u_longlong_t)bpo->bpo_object,
1563 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1564 bytes);
1565 }
1566
1567 if (dump_opt['d'] < 5)
1568 return;
1569
1570
1571 if (indent == 0) {
1572 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1573 (void) printf("\n");
1574 }
1575 }
1576
1577 static void
1578 dump_deadlist(dsl_deadlist_t *dl)
1579 {
1580 dsl_deadlist_entry_t *dle;
1581 uint64_t unused;
1582 char bytes[32];
1583 char comp[32];
1584 char uncomp[32];
1585
1586 /* make sure nicenum has enough space */
1587 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1588 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1589 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1590
1591 if (dump_opt['d'] < 3)
1592 return;
1593
1594 if (dl->dl_oldfmt) {
1595 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1596 return;
1597 }
1598
1599 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes));
1600 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp));
1601 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp));
1602 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1603 bytes, comp, uncomp);
1604
1605 if (dump_opt['d'] < 4)
1606 return;
1607
1608 (void) printf("\n");
1609
1610 /* force the tree to be loaded */
1611 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1612
1613 for (dle = avl_first(&dl->dl_tree); dle;
1614 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1615 if (dump_opt['d'] >= 5) {
1616 char buf[128];
1617 (void) snprintf(buf, sizeof (buf),
1618 "mintxg %llu -> obj %llu",
1619 (longlong_t)dle->dle_mintxg,
1620 (longlong_t)dle->dle_bpobj.bpo_object);
1621
1622 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1623 } else {
1624 (void) printf("mintxg %llu -> obj %llu\n",
1625 (longlong_t)dle->dle_mintxg,
1626 (longlong_t)dle->dle_bpobj.bpo_object);
1627
1628 }
1629 }
1630 }
1631
1632 static avl_tree_t idx_tree;
1633 static avl_tree_t domain_tree;
1634 static boolean_t fuid_table_loaded;
1635 static objset_t *sa_os = NULL;
1636 static sa_attr_type_t *sa_attr_table = NULL;
1637
1638 static int
1639 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1640 {
1641 int err;
1642 uint64_t sa_attrs = 0;
1643 uint64_t version = 0;
1644
1645 VERIFY3P(sa_os, ==, NULL);
1646 err = dmu_objset_own(path, type, B_TRUE, tag, osp);
1647 if (err != 0) {
1648 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1649 strerror(err));
1650 return (err);
1651 }
1652
1653 if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
1654 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1655 8, 1, &version);
1656 if (version >= ZPL_VERSION_SA) {
1657 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1658 8, 1, &sa_attrs);
1659 }
1660 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1661 &sa_attr_table);
1662 if (err != 0) {
1663 (void) fprintf(stderr, "sa_setup failed: %s\n",
1664 strerror(err));
1665 dmu_objset_disown(*osp, tag);
1666 *osp = NULL;
1667 }
1668 }
1669 sa_os = *osp;
1670
1671 return (0);
1672 }
1673
1674 static void
1675 close_objset(objset_t *os, void *tag)
1676 {
1677 VERIFY3P(os, ==, sa_os);
1678 if (os->os_sa != NULL)
1679 sa_tear_down(os);
1680 dmu_objset_disown(os, tag);
1681 sa_attr_table = NULL;
1682 sa_os = NULL;
1683 }
1684
1685 static void
1686 fuid_table_destroy()
1687 {
1688 if (fuid_table_loaded) {
1689 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1690 fuid_table_loaded = B_FALSE;
1691 }
1692 }
1693
1694 /*
1695 * print uid or gid information.
1696 * For normal POSIX id just the id is printed in decimal format.
1697 * For CIFS files with FUID the fuid is printed in hex followed by
1698 * the domain-rid string.
1699 */
1700 static void
1701 print_idstr(uint64_t id, const char *id_type)
1702 {
1703 if (FUID_INDEX(id)) {
1704 char *domain;
1705
1706 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1707 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1708 (u_longlong_t)id, domain, (int)FUID_RID(id));
1709 } else {
1710 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1711 }
1712
1713 }
1714
1715 static void
1716 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1717 {
1718 uint32_t uid_idx, gid_idx;
1719
1720 uid_idx = FUID_INDEX(uid);
1721 gid_idx = FUID_INDEX(gid);
1722
1723 /* Load domain table, if not already loaded */
1724 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1725 uint64_t fuid_obj;
1726
1727 /* first find the fuid object. It lives in the master node */
1728 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1729 8, 1, &fuid_obj) == 0);
1730 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1731 (void) zfs_fuid_table_load(os, fuid_obj,
1732 &idx_tree, &domain_tree);
1733 fuid_table_loaded = B_TRUE;
1734 }
1735
1736 print_idstr(uid, "uid");
1737 print_idstr(gid, "gid");
1738 }
1739
1740 /*ARGSUSED*/
1741 static void
1742 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1743 {
1744 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1745 sa_handle_t *hdl;
1746 uint64_t xattr, rdev, gen;
1747 uint64_t uid, gid, mode, fsize, parent, links;
1748 uint64_t pflags;
1749 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1750 time_t z_crtime, z_atime, z_mtime, z_ctime;
1751 sa_bulk_attr_t bulk[12];
1752 int idx = 0;
1753 int error;
1754
1755 VERIFY3P(os, ==, sa_os);
1756 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1757 (void) printf("Failed to get handle for SA znode\n");
1758 return;
1759 }
1760
1761 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1762 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1763 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1764 &links, 8);
1765 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1766 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1767 &mode, 8);
1768 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1769 NULL, &parent, 8);
1770 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1771 &fsize, 8);
1772 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1773 acctm, 16);
1774 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1775 modtm, 16);
1776 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1777 crtm, 16);
1778 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1779 chgtm, 16);
1780 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1781 &pflags, 8);
1782
1783 if (sa_bulk_lookup(hdl, bulk, idx)) {
1784 (void) sa_handle_destroy(hdl);
1785 return;
1786 }
1787
1788 z_crtime = (time_t)crtm[0];
1789 z_atime = (time_t)acctm[0];
1790 z_mtime = (time_t)modtm[0];
1791 z_ctime = (time_t)chgtm[0];
1792
1793 if (dump_opt['d'] > 4) {
1794 error = zfs_obj_to_path(os, object, path, sizeof (path));
1795 if (error != 0) {
1796 (void) snprintf(path, sizeof (path),
1797 "\?\?\?<object#%llu>", (u_longlong_t)object);
1798 }
1799 (void) printf("\tpath %s\n", path);
1800 }
1801 dump_uidgid(os, uid, gid);
1802 (void) printf("\tatime %s", ctime(&z_atime));
1803 (void) printf("\tmtime %s", ctime(&z_mtime));
1804 (void) printf("\tctime %s", ctime(&z_ctime));
1805 (void) printf("\tcrtime %s", ctime(&z_crtime));
1806 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1807 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1808 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1809 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1810 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1811 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1812 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1813 sizeof (uint64_t)) == 0)
1814 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1815 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1816 sizeof (uint64_t)) == 0)
1817 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1818 sa_handle_destroy(hdl);
1819 }
1820
1821 /*ARGSUSED*/
1822 static void
1823 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1824 {
1825 }
1826
1827 /*ARGSUSED*/
1828 static void
1829 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1830 {
1831 }
1832
1833 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1834 dump_none, /* unallocated */
1835 dump_zap, /* object directory */
1836 dump_uint64, /* object array */
1837 dump_none, /* packed nvlist */
1838 dump_packed_nvlist, /* packed nvlist size */
1839 dump_none, /* bpobj */
1840 dump_bpobj, /* bpobj header */
1841 dump_none, /* SPA space map header */
1842 dump_none, /* SPA space map */
1843 dump_none, /* ZIL intent log */
1844 dump_dnode, /* DMU dnode */
1845 dump_dmu_objset, /* DMU objset */
1846 dump_dsl_dir, /* DSL directory */
1847 dump_zap, /* DSL directory child map */
1848 dump_zap, /* DSL dataset snap map */
1849 dump_zap, /* DSL props */
1850 dump_dsl_dataset, /* DSL dataset */
1851 dump_znode, /* ZFS znode */
1852 dump_acl, /* ZFS V0 ACL */
1853 dump_uint8, /* ZFS plain file */
1854 dump_zpldir, /* ZFS directory */
1855 dump_zap, /* ZFS master node */
1856 dump_zap, /* ZFS delete queue */
1857 dump_uint8, /* zvol object */
1858 dump_zap, /* zvol prop */
1859 dump_uint8, /* other uint8[] */
1860 dump_uint64, /* other uint64[] */
1861 dump_zap, /* other ZAP */
1862 dump_zap, /* persistent error log */
1863 dump_uint8, /* SPA history */
1864 dump_history_offsets, /* SPA history offsets */
1865 dump_zap, /* Pool properties */
1866 dump_zap, /* DSL permissions */
1867 dump_acl, /* ZFS ACL */
1868 dump_uint8, /* ZFS SYSACL */
1869 dump_none, /* FUID nvlist */
1870 dump_packed_nvlist, /* FUID nvlist size */
1871 dump_zap, /* DSL dataset next clones */
1872 dump_zap, /* DSL scrub queue */
1873 dump_zap, /* ZFS user/group used */
1874 dump_zap, /* ZFS user/group quota */
1875 dump_zap, /* snapshot refcount tags */
1876 dump_ddt_zap, /* DDT ZAP object */
1877 dump_zap, /* DDT statistics */
1878 dump_znode, /* SA object */
1879 dump_zap, /* SA Master Node */
1880 dump_sa_attrs, /* SA attribute registration */
1881 dump_sa_layouts, /* SA attribute layouts */
1882 dump_zap, /* DSL scrub translations */
1883 dump_none, /* fake dedup BP */
1884 dump_zap, /* deadlist */
1885 dump_none, /* deadlist hdr */
1886 dump_zap, /* dsl clones */
1887 dump_bpobj_subobjs, /* bpobj subobjs */
1888 dump_unknown, /* Unknown type, must be last */
1889 };
1890
1891 static void
1892 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1893 {
1894 dmu_buf_t *db = NULL;
1895 dmu_object_info_t doi;
1896 dnode_t *dn;
1897 void *bonus = NULL;
1898 size_t bsize = 0;
1899 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1900 char bonus_size[32];
1901 char aux[50];
1902 int error;
1903
1904 /* make sure nicenum has enough space */
1905 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ);
1906 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ);
1907 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
1908 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
1909 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
1910
1911 if (*print_header) {
1912 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1913 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1914 "%full", "type");
1915 *print_header = 0;
1916 }
1917
1918 if (object == 0) {
1919 dn = DMU_META_DNODE(os);
1920 } else {
1921 error = dmu_bonus_hold(os, object, FTAG, &db);
1922 if (error)
1923 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1924 object, error);
1925 bonus = db->db_data;
1926 bsize = db->db_size;
1927 dn = DB_DNODE((dmu_buf_impl_t *)db);
1928 }
1929 dmu_object_info_from_dnode(dn, &doi);
1930
1931 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
1932 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
1933 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
1934 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
1935 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
1936 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1937 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1938 doi.doi_max_offset);
1939
1940 aux[0] = '\0';
1941
1942 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1943 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1944 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1945 }
1946
1947 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1948 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1949 ZDB_COMPRESS_NAME(doi.doi_compress));
1950 }
1951
1952 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1953 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1954 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1955
1956 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1957 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1958 "", "", "", "", "", bonus_size, "bonus",
1959 ZDB_OT_NAME(doi.doi_bonus_type));
1960 }
1961
1962 if (verbosity >= 4) {
1963 (void) printf("\tdnode flags: %s%s%s\n",
1964 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1965 "USED_BYTES " : "",
1966 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1967 "USERUSED_ACCOUNTED " : "",
1968 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1969 "SPILL_BLKPTR" : "");
1970 (void) printf("\tdnode maxblkid: %llu\n",
1971 (longlong_t)dn->dn_phys->dn_maxblkid);
1972
1973 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1974 bonus, bsize);
1975 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1976 *print_header = 1;
1977 }
1978
1979 if (verbosity >= 5)
1980 dump_indirect(dn);
1981
1982 if (verbosity >= 5) {
1983 /*
1984 * Report the list of segments that comprise the object.
1985 */
1986 uint64_t start = 0;
1987 uint64_t end;
1988 uint64_t blkfill = 1;
1989 int minlvl = 1;
1990
1991 if (dn->dn_type == DMU_OT_DNODE) {
1992 minlvl = 0;
1993 blkfill = DNODES_PER_BLOCK;
1994 }
1995
1996 for (;;) {
1997 char segsize[32];
1998 /* make sure nicenum has enough space */
1999 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ);
2000 error = dnode_next_offset(dn,
2001 0, &start, minlvl, blkfill, 0);
2002 if (error)
2003 break;
2004 end = start;
2005 error = dnode_next_offset(dn,
2006 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
2007 zdb_nicenum(end - start, segsize, sizeof (segsize));
2008 (void) printf("\t\tsegment [%016llx, %016llx)"
2009 " size %5s\n", (u_longlong_t)start,
2010 (u_longlong_t)end, segsize);
2011 if (error)
2012 break;
2013 start = end;
2014 }
2015 }
2016
2017 if (db != NULL)
2018 dmu_buf_rele(db, FTAG);
2019 }
2020
2021 static const char *objset_types[DMU_OST_NUMTYPES] = {
2022 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
2023
2024 static void
2025 dump_dir(objset_t *os)
2026 {
2027 dmu_objset_stats_t dds;
2028 uint64_t object, object_count;
2029 uint64_t refdbytes, usedobjs, scratch;
2030 char numbuf[32];
2031 char blkbuf[BP_SPRINTF_LEN + 20];
2032 char osname[ZFS_MAX_DATASET_NAME_LEN];
2033 const char *type = "UNKNOWN";
2034 int verbosity = dump_opt['d'];
2035 int print_header = 1;
2036 unsigned i;
2037 int error;
2038
2039 /* make sure nicenum has enough space */
2040 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
2041
2042 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
2043 dmu_objset_fast_stat(os, &dds);
2044 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
2045
2046 if (dds.dds_type < DMU_OST_NUMTYPES)
2047 type = objset_types[dds.dds_type];
2048
2049 if (dds.dds_type == DMU_OST_META) {
2050 dds.dds_creation_txg = TXG_INITIAL;
2051 usedobjs = BP_GET_FILL(os->os_rootbp);
2052 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
2053 dd_used_bytes;
2054 } else {
2055 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
2056 }
2057
2058 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
2059
2060 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf));
2061
2062 if (verbosity >= 4) {
2063 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
2064 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2065 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2066 } else {
2067 blkbuf[0] = '\0';
2068 }
2069
2070 dmu_objset_name(os, osname);
2071
2072 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2073 "%s, %llu objects%s\n",
2074 osname, type, (u_longlong_t)dmu_objset_id(os),
2075 (u_longlong_t)dds.dds_creation_txg,
2076 numbuf, (u_longlong_t)usedobjs, blkbuf);
2077
2078 if (zopt_objects != 0) {
2079 for (i = 0; i < zopt_objects; i++)
2080 dump_object(os, zopt_object[i], verbosity,
2081 &print_header);
2082 (void) printf("\n");
2083 return;
2084 }
2085
2086 if (dump_opt['i'] != 0 || verbosity >= 2)
2087 dump_intent_log(dmu_objset_zil(os));
2088
2089 if (dmu_objset_ds(os) != NULL)
2090 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
2091
2092 if (verbosity < 2)
2093 return;
2094
2095 if (BP_IS_HOLE(os->os_rootbp))
2096 return;
2097
2098 dump_object(os, 0, verbosity, &print_header);
2099 object_count = 0;
2100 if (DMU_USERUSED_DNODE(os) != NULL &&
2101 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2102 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2103 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2104 }
2105
2106 object = 0;
2107 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2108 dump_object(os, object, verbosity, &print_header);
2109 object_count++;
2110 }
2111
2112 ASSERT3U(object_count, ==, usedobjs);
2113
2114 (void) printf("\n");
2115
2116 if (error != ESRCH) {
2117 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2118 abort();
2119 }
2120 }
2121
2122 static void
2123 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2124 {
2125 time_t timestamp = ub->ub_timestamp;
2126
2127 (void) printf("%s", header ? header : "");
2128 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2129 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2130 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2131 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2132 (void) printf("\ttimestamp = %llu UTC = %s",
2133 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
2134 if (dump_opt['u'] >= 3) {
2135 char blkbuf[BP_SPRINTF_LEN];
2136 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2137 (void) printf("\trootbp = %s\n", blkbuf);
2138 }
2139 (void) printf("%s", footer ? footer : "");
2140 }
2141
2142 static void
2143 dump_config(spa_t *spa)
2144 {
2145 dmu_buf_t *db;
2146 size_t nvsize = 0;
2147 int error = 0;
2148
2149
2150 error = dmu_bonus_hold(spa->spa_meta_objset,
2151 spa->spa_config_object, FTAG, &db);
2152
2153 if (error == 0) {
2154 nvsize = *(uint64_t *)db->db_data;
2155 dmu_buf_rele(db, FTAG);
2156
2157 (void) printf("\nMOS Configuration:\n");
2158 dump_packed_nvlist(spa->spa_meta_objset,
2159 spa->spa_config_object, (void *)&nvsize, 1);
2160 } else {
2161 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2162 (u_longlong_t)spa->spa_config_object, error);
2163 }
2164 }
2165
2166 static void
2167 dump_cachefile(const char *cachefile)
2168 {
2169 int fd;
2170 struct stat64 statbuf;
2171 char *buf;
2172 nvlist_t *config;
2173
2174 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2175 (void) printf("cannot open '%s': %s\n", cachefile,
2176 strerror(errno));
2177 exit(1);
2178 }
2179
2180 if (fstat64(fd, &statbuf) != 0) {
2181 (void) printf("failed to stat '%s': %s\n", cachefile,
2182 strerror(errno));
2183 exit(1);
2184 }
2185
2186 if ((buf = malloc(statbuf.st_size)) == NULL) {
2187 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2188 (u_longlong_t)statbuf.st_size);
2189 exit(1);
2190 }
2191
2192 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2193 (void) fprintf(stderr, "failed to read %llu bytes\n",
2194 (u_longlong_t)statbuf.st_size);
2195 exit(1);
2196 }
2197
2198 (void) close(fd);
2199
2200 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2201 (void) fprintf(stderr, "failed to unpack nvlist\n");
2202 exit(1);
2203 }
2204
2205 free(buf);
2206
2207 dump_nvlist(config, 0);
2208
2209 nvlist_free(config);
2210 }
2211
2212 #define ZDB_MAX_UB_HEADER_SIZE 32
2213
2214 static void
2215 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2216 {
2217 vdev_t vd;
2218 vdev_t *vdp = &vd;
2219 char header[ZDB_MAX_UB_HEADER_SIZE];
2220
2221 vd.vdev_ashift = ashift;
2222 vdp->vdev_top = vdp;
2223
2224 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2225 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2226 uberblock_t *ub = (void *)((char *)lbl + uoff);
2227
2228 if (uberblock_verify(ub))
2229 continue;
2230 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2231 "Uberblock[%d]\n", i);
2232 dump_uberblock(ub, header, "");
2233 }
2234 }
2235
2236 static char curpath[PATH_MAX];
2237
2238 /*
2239 * Iterate through the path components, recursively passing
2240 * current one's obj and remaining path until we find the obj
2241 * for the last one.
2242 */
2243 static int
2244 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2245 {
2246 int err;
2247 int header = 1;
2248 uint64_t child_obj;
2249 char *s;
2250 dmu_buf_t *db;
2251 dmu_object_info_t doi;
2252
2253 if ((s = strchr(name, '/')) != NULL)
2254 *s = '\0';
2255 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2256
2257 (void) strlcat(curpath, name, sizeof (curpath));
2258
2259 if (err != 0) {
2260 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2261 curpath, strerror(err));
2262 return (err);
2263 }
2264
2265 child_obj = ZFS_DIRENT_OBJ(child_obj);
2266 err = sa_buf_hold(os, child_obj, FTAG, &db);
2267 if (err != 0) {
2268 (void) fprintf(stderr,
2269 "failed to get SA dbuf for obj %llu: %s\n",
2270 (u_longlong_t)child_obj, strerror(err));
2271 return (EINVAL);
2272 }
2273 dmu_object_info_from_db(db, &doi);
2274 sa_buf_rele(db, FTAG);
2275
2276 if (doi.doi_bonus_type != DMU_OT_SA &&
2277 doi.doi_bonus_type != DMU_OT_ZNODE) {
2278 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2279 doi.doi_bonus_type, (u_longlong_t)child_obj);
2280 return (EINVAL);
2281 }
2282
2283 if (dump_opt['v'] > 6) {
2284 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2285 (u_longlong_t)child_obj, curpath, doi.doi_type,
2286 doi.doi_bonus_type);
2287 }
2288
2289 (void) strlcat(curpath, "/", sizeof (curpath));
2290
2291 switch (doi.doi_type) {
2292 case DMU_OT_DIRECTORY_CONTENTS:
2293 if (s != NULL && *(s + 1) != '\0')
2294 return (dump_path_impl(os, child_obj, s + 1));
2295 /*FALLTHROUGH*/
2296 case DMU_OT_PLAIN_FILE_CONTENTS:
2297 dump_object(os, child_obj, dump_opt['v'], &header);
2298 return (0);
2299 default:
2300 (void) fprintf(stderr, "object %llu has non-file/directory "
2301 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2302 break;
2303 }
2304
2305 return (EINVAL);
2306 }
2307
2308 /*
2309 * Dump the blocks for the object specified by path inside the dataset.
2310 */
2311 static int
2312 dump_path(char *ds, char *path)
2313 {
2314 int err;
2315 objset_t *os;
2316 uint64_t root_obj;
2317
2318 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2319 if (err != 0)
2320 return (err);
2321
2322 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2323 if (err != 0) {
2324 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2325 strerror(err));
2326 dmu_objset_disown(os, FTAG);
2327 return (EINVAL);
2328 }
2329
2330 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2331
2332 err = dump_path_impl(os, root_obj, path);
2333
2334 close_objset(os, FTAG);
2335 return (err);
2336 }
2337
2338 static int
2339 dump_label(const char *dev)
2340 {
2341 int fd;
2342 vdev_label_t label;
2343 char path[MAXPATHLEN];
2344 char *buf = label.vl_vdev_phys.vp_nvlist;
2345 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2346 struct stat64 statbuf;
2347 uint64_t psize, ashift;
2348 boolean_t label_found = B_FALSE;
2349
2350 (void) strlcpy(path, dev, sizeof (path));
2351 if (dev[0] == '/') {
2352 if (strncmp(dev, ZFS_DISK_ROOTD,
2353 strlen(ZFS_DISK_ROOTD)) == 0) {
2354 (void) snprintf(path, sizeof (path), "%s%s",
2355 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD));
2356 }
2357 } else if (stat64(path, &statbuf) != 0) {
2358 char *s;
2359
2360 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD,
2361 dev);
2362 if (((s = strrchr(dev, 's')) == NULL &&
2363 (s = strchr(dev, 'p')) == NULL) ||
2364 !isdigit(*(s + 1)))
2365 (void) strlcat(path, "s0", sizeof (path));
2366 }
2367
2368 if ((fd = open64(path, O_RDONLY)) < 0) {
2369 (void) fprintf(stderr, "cannot open '%s': %s\n", path,
2370 strerror(errno));
2371 exit(1);
2372 }
2373
2374 if (fstat64(fd, &statbuf) != 0) {
2375 (void) fprintf(stderr, "failed to stat '%s': %s\n", path,
2376 strerror(errno));
2377 (void) close(fd);
2378 exit(1);
2379 }
2380
2381 if (S_ISBLK(statbuf.st_mode)) {
2382 (void) fprintf(stderr,
2383 "cannot use '%s': character device required\n", path);
2384 (void) close(fd);
2385 exit(1);
2386 }
2387
2388 psize = statbuf.st_size;
2389 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2390
2391 for (int l = 0; l < VDEV_LABELS; l++) {
2392 nvlist_t *config = NULL;
2393
2394 if (!dump_opt['q']) {
2395 (void) printf("------------------------------------\n");
2396 (void) printf("LABEL %d\n", l);
2397 (void) printf("------------------------------------\n");
2398 }
2399
2400 if (pread64(fd, &label, sizeof (label),
2401 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2402 if (!dump_opt['q'])
2403 (void) printf("failed to read label %d\n", l);
2404 continue;
2405 }
2406
2407 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2408 if (!dump_opt['q'])
2409 (void) printf("failed to unpack label %d\n", l);
2410 ashift = SPA_MINBLOCKSHIFT;
2411 } else {
2412 nvlist_t *vdev_tree = NULL;
2413
2414 if (!dump_opt['q'])
2415 dump_nvlist(config, 4);
2416 if ((nvlist_lookup_nvlist(config,
2417 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2418 (nvlist_lookup_uint64(vdev_tree,
2419 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2420 ashift = SPA_MINBLOCKSHIFT;
2421 nvlist_free(config);
2422 label_found = B_TRUE;
2423 }
2424 if (dump_opt['u'])
2425 dump_label_uberblocks(&label, ashift);
2426 }
2427
2428 (void) close(fd);
2429
2430 return (label_found ? 0 : 2);
2431 }
2432
2433 static uint64_t dataset_feature_count[SPA_FEATURES];
2434
2435 /*ARGSUSED*/
2436 static int
2437 dump_one_dir(const char *dsname, void *arg)
2438 {
2439 int error;
2440 objset_t *os;
2441
2442 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
2443 if (error != 0)
2444 return (0);
2445
2446 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2447 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2448 continue;
2449 ASSERT(spa_feature_table[f].fi_flags &
2450 ZFEATURE_FLAG_PER_DATASET);
2451 dataset_feature_count[f]++;
2452 }
2453
2454 dump_dir(os);
2455 close_objset(os, FTAG);
2456 fuid_table_destroy();
2457 return (0);
2458 }
2459
2460 /*
2461 * Block statistics.
2462 */
2463 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2464 typedef struct zdb_blkstats {
2465 uint64_t zb_asize;
2466 uint64_t zb_lsize;
2467 uint64_t zb_psize;
2468 uint64_t zb_count;
2469 uint64_t zb_gangs;
2470 uint64_t zb_ditto_samevdev;
2471 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2472 } zdb_blkstats_t;
2473
2474 /*
2475 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2476 */
2477 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2478 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2479 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2480 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2481
2482 static const char *zdb_ot_extname[] = {
2483 "deferred free",
2484 "dedup ditto",
2485 "other",
2486 "Total",
2487 };
2488
2489 #define ZB_TOTAL DN_MAX_LEVELS
2490
2491 typedef struct zdb_cb {
2492 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2493 uint64_t zcb_dedup_asize;
2494 uint64_t zcb_dedup_blocks;
2495 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2496 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2497 [BPE_PAYLOAD_SIZE];
2498 uint64_t zcb_start;
2499 hrtime_t zcb_lastprint;
2500 uint64_t zcb_totalasize;
2501 uint64_t zcb_errors[256];
2502 int zcb_readfails;
2503 int zcb_haderrors;
2504 spa_t *zcb_spa;
2505 } zdb_cb_t;
2506
2507 static void
2508 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2509 dmu_object_type_t type)
2510 {
2511 uint64_t refcnt = 0;
2512
2513 ASSERT(type < ZDB_OT_TOTAL);
2514
2515 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2516 return;
2517
2518 for (int i = 0; i < 4; i++) {
2519 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2520 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2521 int equal;
2522 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2523
2524 zb->zb_asize += BP_GET_ASIZE(bp);
2525 zb->zb_lsize += BP_GET_LSIZE(bp);
2526 zb->zb_psize += BP_GET_PSIZE(bp);
2527 zb->zb_count++;
2528
2529 /*
2530 * The histogram is only big enough to record blocks up to
2531 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2532 * "other", bucket.
2533 */
2534 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2535 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2536 zb->zb_psize_histogram[idx]++;
2537
2538 zb->zb_gangs += BP_COUNT_GANG(bp);
2539
2540 switch (BP_GET_NDVAS(bp)) {
2541 case 2:
2542 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2543 DVA_GET_VDEV(&bp->blk_dva[1]))
2544 zb->zb_ditto_samevdev++;
2545 break;
2546 case 3:
2547 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2548 DVA_GET_VDEV(&bp->blk_dva[1])) +
2549 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2550 DVA_GET_VDEV(&bp->blk_dva[2])) +
2551 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2552 DVA_GET_VDEV(&bp->blk_dva[2]));
2553 if (equal != 0)
2554 zb->zb_ditto_samevdev++;
2555 break;
2556 }
2557
2558 }
2559
2560 if (BP_IS_EMBEDDED(bp)) {
2561 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2562 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2563 [BPE_GET_PSIZE(bp)]++;
2564 return;
2565 }
2566
2567 if (dump_opt['L'])
2568 return;
2569
2570 if (BP_GET_DEDUP(bp)) {
2571 ddt_t *ddt;
2572 ddt_entry_t *dde;
2573
2574 ddt = ddt_select(zcb->zcb_spa, bp);
2575 ddt_enter(ddt);
2576 dde = ddt_lookup(ddt, bp, B_FALSE);
2577
2578 if (dde == NULL) {
2579 refcnt = 0;
2580 } else {
2581 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2582 ddt_phys_decref(ddp);
2583 refcnt = ddp->ddp_refcnt;
2584 if (ddt_phys_total_refcnt(dde) == 0)
2585 ddt_remove(ddt, dde);
2586 }
2587 ddt_exit(ddt);
2588 }
2589
2590 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2591 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2592 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2593 }
2594
2595 static void
2596 zdb_blkptr_done(zio_t *zio)
2597 {
2598 spa_t *spa = zio->io_spa;
2599 blkptr_t *bp = zio->io_bp;
2600 int ioerr = zio->io_error;
2601 zdb_cb_t *zcb = zio->io_private;
2602 zbookmark_phys_t *zb = &zio->io_bookmark;
2603
2604 abd_free(zio->io_abd);
2605
2606 mutex_enter(&spa->spa_scrub_lock);
2607 spa->spa_scrub_inflight--;
2608 cv_broadcast(&spa->spa_scrub_io_cv);
2609
2610 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2611 char blkbuf[BP_SPRINTF_LEN];
2612
2613 zcb->zcb_haderrors = 1;
2614 zcb->zcb_errors[ioerr]++;
2615
2616 if (dump_opt['b'] >= 2)
2617 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2618 else
2619 blkbuf[0] = '\0';
2620
2621 (void) printf("zdb_blkptr_cb: "
2622 "Got error %d reading "
2623 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2624 ioerr,
2625 (u_longlong_t)zb->zb_objset,
2626 (u_longlong_t)zb->zb_object,
2627 (u_longlong_t)zb->zb_level,
2628 (u_longlong_t)zb->zb_blkid,
2629 blkbuf);
2630 }
2631 mutex_exit(&spa->spa_scrub_lock);
2632 }
2633
2634 static int
2635 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2636 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2637 {
2638 zdb_cb_t *zcb = arg;
2639 dmu_object_type_t type;
2640 boolean_t is_metadata;
2641
2642 if (bp == NULL)
2643 return (0);
2644
2645 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2646 char blkbuf[BP_SPRINTF_LEN];
2647 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2648 (void) printf("objset %llu object %llu "
2649 "level %lld offset 0x%llx %s\n",
2650 (u_longlong_t)zb->zb_objset,
2651 (u_longlong_t)zb->zb_object,
2652 (longlong_t)zb->zb_level,
2653 (u_longlong_t)blkid2offset(dnp, bp, zb),
2654 blkbuf);
2655 }
2656
2657 if (BP_IS_HOLE(bp))
2658 return (0);
2659
2660 type = BP_GET_TYPE(bp);
2661
2662 zdb_count_block(zcb, zilog, bp,
2663 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2664
2665 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2666
2667 if (!BP_IS_EMBEDDED(bp) &&
2668 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2669 size_t size = BP_GET_PSIZE(bp);
2670 abd_t *abd = abd_alloc(size, B_FALSE);
2671 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2672
2673 /* If it's an intent log block, failure is expected. */
2674 if (zb->zb_level == ZB_ZIL_LEVEL)
2675 flags |= ZIO_FLAG_SPECULATIVE;
2676
2677 mutex_enter(&spa->spa_scrub_lock);
2678 while (spa->spa_scrub_inflight > max_inflight)
2679 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2680 spa->spa_scrub_inflight++;
2681 mutex_exit(&spa->spa_scrub_lock);
2682
2683 zio_nowait(zio_read(NULL, spa, bp, abd, size,
2684 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2685 }
2686
2687 zcb->zcb_readfails = 0;
2688
2689 /* only call gethrtime() every 100 blocks */
2690 static int iters;
2691 if (++iters > 100)
2692 iters = 0;
2693 else
2694 return (0);
2695
2696 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2697 uint64_t now = gethrtime();
2698 char buf[10];
2699 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2700 int kb_per_sec =
2701 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2702 int sec_remaining =
2703 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2704
2705 /* make sure nicenum has enough space */
2706 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ);
2707
2708 zfs_nicenum(bytes, buf, sizeof (buf));
2709 (void) fprintf(stderr,
2710 "\r%5s completed (%4dMB/s) "
2711 "estimated time remaining: %uhr %02umin %02usec ",
2712 buf, kb_per_sec / 1024,
2713 sec_remaining / 60 / 60,
2714 sec_remaining / 60 % 60,
2715 sec_remaining % 60);
2716
2717 zcb->zcb_lastprint = now;
2718 }
2719
2720 return (0);
2721 }
2722
2723 static void
2724 zdb_leak(void *arg, uint64_t start, uint64_t size)
2725 {
2726 vdev_t *vd = arg;
2727
2728 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2729 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2730 }
2731
2732 static metaslab_ops_t zdb_metaslab_ops = {
2733 NULL /* alloc */
2734 };
2735
2736 static void
2737 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2738 {
2739 ddt_bookmark_t ddb;
2740 ddt_entry_t dde;
2741 int error;
2742
2743 bzero(&ddb, sizeof (ddb));
2744 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2745 blkptr_t blk;
2746 ddt_phys_t *ddp = dde.dde_phys;
2747
2748 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2749 return;
2750
2751 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2752
2753 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2754 if (ddp->ddp_phys_birth == 0)
2755 continue;
2756 ddt_bp_create(ddb.ddb_checksum,
2757 &dde.dde_key, ddp, &blk);
2758 if (p == DDT_PHYS_DITTO) {
2759 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2760 } else {
2761 zcb->zcb_dedup_asize +=
2762 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2763 zcb->zcb_dedup_blocks++;
2764 }
2765 }
2766 if (!dump_opt['L']) {
2767 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2768 ddt_enter(ddt);
2769 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2770 ddt_exit(ddt);
2771 }
2772 }
2773
2774 ASSERT(error == ENOENT);
2775 }
2776
2777 static void
2778 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2779 {
2780 zcb->zcb_spa = spa;
2781
2782 if (!dump_opt['L']) {
2783 vdev_t *rvd = spa->spa_root_vdev;
2784
2785 /*
2786 * We are going to be changing the meaning of the metaslab's
2787 * ms_tree. Ensure that the allocator doesn't try to
2788 * use the tree.
2789 */
2790 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
2791 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
2792
2793 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
2794 vdev_t *vd = rvd->vdev_child[c];
2795 metaslab_group_t *mg = vd->vdev_mg;
2796 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
2797 metaslab_t *msp = vd->vdev_ms[m];
2798 ASSERT3P(msp->ms_group, ==, mg);
2799 mutex_enter(&msp->ms_lock);
2800 metaslab_unload(msp);
2801
2802 /*
2803 * For leak detection, we overload the metaslab
2804 * ms_tree to contain allocated segments
2805 * instead of free segments. As a result,
2806 * we can't use the normal metaslab_load/unload
2807 * interfaces.
2808 */
2809 if (msp->ms_sm != NULL) {
2810 (void) fprintf(stderr,
2811 "\rloading space map for "
2812 "vdev %llu of %llu, "
2813 "metaslab %llu of %llu ...",
2814 (longlong_t)c,
2815 (longlong_t)rvd->vdev_children,
2816 (longlong_t)m,
2817 (longlong_t)vd->vdev_ms_count);
2818
2819 /*
2820 * We don't want to spend the CPU
2821 * manipulating the size-ordered
2822 * tree, so clear the range_tree
2823 * ops.
2824 */
2825 msp->ms_tree->rt_ops = NULL;
2826 VERIFY0(space_map_load(msp->ms_sm,
2827 msp->ms_tree, SM_ALLOC));
2828
2829 if (!msp->ms_loaded) {
2830 msp->ms_loaded = B_TRUE;
2831 }
2832 }
2833 mutex_exit(&msp->ms_lock);
2834 }
2835 }
2836 (void) fprintf(stderr, "\n");
2837 }
2838
2839 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2840
2841 zdb_ddt_leak_init(spa, zcb);
2842
2843 spa_config_exit(spa, SCL_CONFIG, FTAG);
2844 }
2845
2846 static void
2847 zdb_leak_fini(spa_t *spa)
2848 {
2849 if (!dump_opt['L']) {
2850 vdev_t *rvd = spa->spa_root_vdev;
2851 for (unsigned c = 0; c < rvd->vdev_children; c++) {
2852 vdev_t *vd = rvd->vdev_child[c];
2853 metaslab_group_t *mg = vd->vdev_mg;
2854 for (unsigned m = 0; m < vd->vdev_ms_count; m++) {
2855 metaslab_t *msp = vd->vdev_ms[m];
2856 ASSERT3P(mg, ==, msp->ms_group);
2857 mutex_enter(&msp->ms_lock);
2858
2859 /*
2860 * The ms_tree has been overloaded to
2861 * contain allocated segments. Now that we
2862 * finished traversing all blocks, any
2863 * block that remains in the ms_tree
2864 * represents an allocated block that we
2865 * did not claim during the traversal.
2866 * Claimed blocks would have been removed
2867 * from the ms_tree.
2868 */
2869 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2870
2871 if (msp->ms_loaded) {
2872 msp->ms_loaded = B_FALSE;
2873 }
2874
2875 mutex_exit(&msp->ms_lock);
2876 }
2877 }
2878 }
2879 }
2880
2881 /* ARGSUSED */
2882 static int
2883 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2884 {
2885 zdb_cb_t *zcb = arg;
2886
2887 if (dump_opt['b'] >= 5) {
2888 char blkbuf[BP_SPRINTF_LEN];
2889 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2890 (void) printf("[%s] %s\n",
2891 "deferred free", blkbuf);
2892 }
2893 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2894 return (0);
2895 }
2896
2897 static int
2898 dump_block_stats(spa_t *spa)
2899 {
2900 zdb_cb_t zcb;
2901 zdb_blkstats_t *zb, *tzb;
2902 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2903 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2904 boolean_t leaks = B_FALSE;
2905
2906 bzero(&zcb, sizeof (zcb));
2907 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2908 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2909 (dump_opt['c'] == 1) ? "metadata " : "",
2910 dump_opt['c'] ? "checksums " : "",
2911 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2912 !dump_opt['L'] ? "nothing leaked " : "");
2913
2914 /*
2915 * Load all space maps as SM_ALLOC maps, then traverse the pool
2916 * claiming each block we discover. If the pool is perfectly
2917 * consistent, the space maps will be empty when we're done.
2918 * Anything left over is a leak; any block we can't claim (because
2919 * it's not part of any space map) is a double allocation,
2920 * reference to a freed block, or an unclaimed log block.
2921 */
2922 zdb_leak_init(spa, &zcb);
2923
2924 /*
2925 * If there's a deferred-free bplist, process that first.
2926 */
2927 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2928 count_block_cb, &zcb, NULL);
2929 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2930 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2931 count_block_cb, &zcb, NULL);
2932 }
2933 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2934 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2935 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2936 &zcb, NULL));
2937 }
2938
2939 if (dump_opt['c'] > 1)
2940 flags |= TRAVERSE_PREFETCH_DATA;
2941
2942 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2943 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2944 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2945
2946 /*
2947 * If we've traversed the data blocks then we need to wait for those
2948 * I/Os to complete. We leverage "The Godfather" zio to wait on
2949 * all async I/Os to complete.
2950 */
2951 if (dump_opt['c']) {
2952 for (int i = 0; i < max_ncpus; i++) {
2953 (void) zio_wait(spa->spa_async_zio_root[i]);
2954 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
2955 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2956 ZIO_FLAG_GODFATHER);
2957 }
2958 }
2959
2960 if (zcb.zcb_haderrors) {
2961 (void) printf("\nError counts:\n\n");
2962 (void) printf("\t%5s %s\n", "errno", "count");
2963 for (int e = 0; e < 256; e++) {
2964 if (zcb.zcb_errors[e] != 0) {
2965 (void) printf("\t%5d %llu\n",
2966 e, (u_longlong_t)zcb.zcb_errors[e]);
2967 }
2968 }
2969 }
2970
2971 /*
2972 * Report any leaked segments.
2973 */
2974 zdb_leak_fini(spa);
2975
2976 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2977
2978 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2979 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2980
2981 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2982 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2983
2984 if (total_found == total_alloc) {
2985 if (!dump_opt['L'])
2986 (void) printf("\n\tNo leaks (block sum matches space"
2987 " maps exactly)\n");
2988 } else {
2989 (void) printf("block traversal size %llu != alloc %llu "
2990 "(%s %lld)\n",
2991 (u_longlong_t)total_found,
2992 (u_longlong_t)total_alloc,
2993 (dump_opt['L']) ? "unreachable" : "leaked",
2994 (longlong_t)(total_alloc - total_found));
2995 leaks = B_TRUE;
2996 }
2997
2998 if (tzb->zb_count == 0)
2999 return (2);
3000
3001 (void) printf("\n");
3002 (void) printf("\tbp count: %10llu\n",
3003 (u_longlong_t)tzb->zb_count);
3004 (void) printf("\tganged count: %10llu\n",
3005 (longlong_t)tzb->zb_gangs);
3006 (void) printf("\tbp logical: %10llu avg: %6llu\n",
3007 (u_longlong_t)tzb->zb_lsize,
3008 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
3009 (void) printf("\tbp physical: %10llu avg:"
3010 " %6llu compression: %6.2f\n",
3011 (u_longlong_t)tzb->zb_psize,
3012 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
3013 (double)tzb->zb_lsize / tzb->zb_psize);
3014 (void) printf("\tbp allocated: %10llu avg:"
3015 " %6llu compression: %6.2f\n",
3016 (u_longlong_t)tzb->zb_asize,
3017 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
3018 (double)tzb->zb_lsize / tzb->zb_asize);
3019 (void) printf("\tbp deduped: %10llu ref>1:"
3020 " %6llu deduplication: %6.2f\n",
3021 (u_longlong_t)zcb.zcb_dedup_asize,
3022 (u_longlong_t)zcb.zcb_dedup_blocks,
3023 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
3024 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
3025 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
3026
3027 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
3028 if (zcb.zcb_embedded_blocks[i] == 0)
3029 continue;
3030 (void) printf("\n");
3031 (void) printf("\tadditional, non-pointer bps of type %u: "
3032 "%10llu\n",
3033 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
3034
3035 if (dump_opt['b'] >= 3) {
3036 (void) printf("\t number of (compressed) bytes: "
3037 "number of bps\n");
3038 dump_histogram(zcb.zcb_embedded_histogram[i],
3039 sizeof (zcb.zcb_embedded_histogram[i]) /
3040 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
3041 }
3042 }
3043
3044 if (tzb->zb_ditto_samevdev != 0) {
3045 (void) printf("\tDittoed blocks on same vdev: %llu\n",
3046 (longlong_t)tzb->zb_ditto_samevdev);
3047 }
3048
3049 if (dump_opt['b'] >= 2) {
3050 int l, t, level;
3051 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
3052 "\t avg\t comp\t%%Total\tType\n");
3053
3054 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
3055 char csize[32], lsize[32], psize[32], asize[32];
3056 char avg[32], gang[32];
3057 const char *typename;
3058
3059 /* make sure nicenum has enough space */
3060 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ);
3061 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
3062 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ);
3063 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
3064 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ);
3065 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ);
3066
3067 if (t < DMU_OT_NUMTYPES)
3068 typename = dmu_ot[t].ot_name;
3069 else
3070 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
3071
3072 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
3073 (void) printf("%6s\t%5s\t%5s\t%5s"
3074 "\t%5s\t%5s\t%6s\t%s\n",
3075 "-",
3076 "-",
3077 "-",
3078 "-",
3079 "-",
3080 "-",
3081 "-",
3082 typename);
3083 continue;
3084 }
3085
3086 for (l = ZB_TOTAL - 1; l >= -1; l--) {
3087 level = (l == -1 ? ZB_TOTAL : l);
3088 zb = &zcb.zcb_type[level][t];
3089
3090 if (zb->zb_asize == 0)
3091 continue;
3092
3093 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
3094 continue;
3095
3096 if (level == 0 && zb->zb_asize ==
3097 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
3098 continue;
3099
3100 zdb_nicenum(zb->zb_count, csize,
3101 sizeof (csize));
3102 zdb_nicenum(zb->zb_lsize, lsize,
3103 sizeof (lsize));
3104 zdb_nicenum(zb->zb_psize, psize,
3105 sizeof (psize));
3106 zdb_nicenum(zb->zb_asize, asize,
3107 sizeof (asize));
3108 zdb_nicenum(zb->zb_asize / zb->zb_count, avg,
3109 sizeof (avg));
3110 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang));
3111
3112 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
3113 "\t%5.2f\t%6.2f\t",
3114 csize, lsize, psize, asize, avg,
3115 (double)zb->zb_lsize / zb->zb_psize,
3116 100.0 * zb->zb_asize / tzb->zb_asize);
3117
3118 if (level == ZB_TOTAL)
3119 (void) printf("%s\n", typename);
3120 else
3121 (void) printf(" L%d %s\n",
3122 level, typename);
3123
3124 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
3125 (void) printf("\t number of ganged "
3126 "blocks: %s\n", gang);
3127 }
3128
3129 if (dump_opt['b'] >= 4) {
3130 (void) printf("psize "
3131 "(in 512-byte sectors): "
3132 "number of blocks\n");
3133 dump_histogram(zb->zb_psize_histogram,
3134 PSIZE_HISTO_SIZE, 0);
3135 }
3136 }
3137 }
3138 }
3139
3140 (void) printf("\n");
3141
3142 if (leaks)
3143 return (2);
3144
3145 if (zcb.zcb_haderrors)
3146 return (3);
3147
3148 return (0);
3149 }
3150
3151 typedef struct zdb_ddt_entry {
3152 ddt_key_t zdde_key;
3153 uint64_t zdde_ref_blocks;
3154 uint64_t zdde_ref_lsize;
3155 uint64_t zdde_ref_psize;
3156 uint64_t zdde_ref_dsize;
3157 avl_node_t zdde_node;
3158 } zdb_ddt_entry_t;
3159
3160 /* ARGSUSED */
3161 static int
3162 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3163 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3164 {
3165 avl_tree_t *t = arg;
3166 avl_index_t where;
3167 zdb_ddt_entry_t *zdde, zdde_search;
3168
3169 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
3170 return (0);
3171
3172 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
3173 (void) printf("traversing objset %llu, %llu objects, "
3174 "%lu blocks so far\n",
3175 (u_longlong_t)zb->zb_objset,
3176 (u_longlong_t)BP_GET_FILL(bp),
3177 avl_numnodes(t));
3178 }
3179
3180 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
3181 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
3182 return (0);
3183
3184 ddt_key_fill(&zdde_search.zdde_key, bp);
3185
3186 zdde = avl_find(t, &zdde_search, &where);
3187
3188 if (zdde == NULL) {
3189 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
3190 zdde->zdde_key = zdde_search.zdde_key;
3191 avl_insert(t, zdde, where);
3192 }
3193
3194 zdde->zdde_ref_blocks += 1;
3195 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
3196 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
3197 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
3198
3199 return (0);
3200 }
3201
3202 static void
3203 dump_simulated_ddt(spa_t *spa)
3204 {
3205 avl_tree_t t;
3206 void *cookie = NULL;
3207 zdb_ddt_entry_t *zdde;
3208 ddt_histogram_t ddh_total;
3209 ddt_stat_t dds_total;
3210
3211 bzero(&ddh_total, sizeof (ddh_total));
3212 bzero(&dds_total, sizeof (dds_total));
3213 avl_create(&t, ddt_entry_compare,
3214 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
3215
3216 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3217
3218 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
3219 zdb_ddt_add_cb, &t);
3220
3221 spa_config_exit(spa, SCL_CONFIG, FTAG);
3222
3223 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
3224 ddt_stat_t dds;
3225 uint64_t refcnt = zdde->zdde_ref_blocks;
3226 ASSERT(refcnt != 0);
3227
3228 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
3229 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
3230 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
3231 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
3232
3233 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
3234 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
3235 dds.dds_ref_psize = zdde->zdde_ref_psize;
3236 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3237
3238 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3239 &dds, 0);
3240
3241 umem_free(zdde, sizeof (*zdde));
3242 }
3243
3244 avl_destroy(&t);
3245
3246 ddt_histogram_stat(&dds_total, &ddh_total);
3247
3248 (void) printf("Simulated DDT histogram:\n");
3249
3250 zpool_dump_ddt(&dds_total, &ddh_total);
3251
3252 dump_dedup_ratio(&dds_total);
3253 }
3254
3255 static void
3256 dump_zpool(spa_t *spa)
3257 {
3258 dsl_pool_t *dp = spa_get_dsl(spa);
3259 int rc = 0;
3260
3261 if (dump_opt['S']) {
3262 dump_simulated_ddt(spa);
3263 return;
3264 }
3265
3266 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3267 (void) printf("\nCached configuration:\n");
3268 dump_nvlist(spa->spa_config, 8);
3269 }
3270
3271 if (dump_opt['C'])
3272 dump_config(spa);
3273
3274 if (dump_opt['u'])
3275 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3276
3277 if (dump_opt['D'])
3278 dump_all_ddts(spa);
3279
3280 if (dump_opt['d'] > 2 || dump_opt['m'])
3281 dump_metaslabs(spa);
3282 if (dump_opt['M'])
3283 dump_metaslab_groups(spa);
3284
3285 if (dump_opt['d'] || dump_opt['i']) {
3286 dump_dir(dp->dp_meta_objset);
3287 if (dump_opt['d'] >= 3) {
3288 dump_full_bpobj(&spa->spa_deferred_bpobj,
3289 "Deferred frees", 0);
3290 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3291 dump_full_bpobj(
3292 &spa->spa_dsl_pool->dp_free_bpobj,
3293 "Pool snapshot frees", 0);
3294 }
3295
3296 if (spa_feature_is_active(spa,
3297 SPA_FEATURE_ASYNC_DESTROY)) {
3298 dump_bptree(spa->spa_meta_objset,
3299 spa->spa_dsl_pool->dp_bptree_obj,
3300 "Pool dataset frees");
3301 }
3302 dump_dtl(spa->spa_root_vdev, 0);
3303 }
3304 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3305 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3306
3307 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
3308 uint64_t refcount;
3309
3310 if (!(spa_feature_table[f].fi_flags &
3311 ZFEATURE_FLAG_PER_DATASET) ||
3312 !spa_feature_is_enabled(spa, f)) {
3313 ASSERT0(dataset_feature_count[f]);
3314 continue;
3315 }
3316 (void) feature_get_refcount(spa,
3317 &spa_feature_table[f], &refcount);
3318 if (dataset_feature_count[f] != refcount) {
3319 (void) printf("%s feature refcount mismatch: "
3320 "%lld datasets != %lld refcount\n",
3321 spa_feature_table[f].fi_uname,
3322 (longlong_t)dataset_feature_count[f],
3323 (longlong_t)refcount);
3324 rc = 2;
3325 } else {
3326 (void) printf("Verified %s feature refcount "
3327 "of %llu is correct\n",
3328 spa_feature_table[f].fi_uname,
3329 (longlong_t)refcount);
3330 }
3331 }
3332 }
3333 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3334 rc = dump_block_stats(spa);
3335
3336 if (rc == 0)
3337 rc = verify_spacemap_refcounts(spa);
3338
3339 if (dump_opt['s'])
3340 show_pool_stats(spa);
3341
3342 if (dump_opt['h'])
3343 dump_history(spa);
3344
3345 if (rc != 0) {
3346 dump_debug_buffer();
3347 exit(rc);
3348 }
3349 }
3350
3351 #define ZDB_FLAG_CHECKSUM 0x0001
3352 #define ZDB_FLAG_DECOMPRESS 0x0002
3353 #define ZDB_FLAG_BSWAP 0x0004
3354 #define ZDB_FLAG_GBH 0x0008
3355 #define ZDB_FLAG_INDIRECT 0x0010
3356 #define ZDB_FLAG_PHYS 0x0020
3357 #define ZDB_FLAG_RAW 0x0040
3358 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3359
3360 static int flagbits[256];
3361
3362 static void
3363 zdb_print_blkptr(blkptr_t *bp, int flags)
3364 {
3365 char blkbuf[BP_SPRINTF_LEN];
3366
3367 if (flags & ZDB_FLAG_BSWAP)
3368 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3369
3370 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3371 (void) printf("%s\n", blkbuf);
3372 }
3373
3374 static void
3375 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3376 {
3377 int i;
3378
3379 for (i = 0; i < nbps; i++)
3380 zdb_print_blkptr(&bp[i], flags);
3381 }
3382
3383 static void
3384 zdb_dump_gbh(void *buf, int flags)
3385 {
3386 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3387 }
3388
3389 static void
3390 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3391 {
3392 if (flags & ZDB_FLAG_BSWAP)
3393 byteswap_uint64_array(buf, size);
3394 (void) write(1, buf, size);
3395 }
3396
3397 static void
3398 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3399 {
3400 uint64_t *d = (uint64_t *)buf;
3401 unsigned nwords = size / sizeof (uint64_t);
3402 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3403 unsigned i, j;
3404 const char *hdr;
3405 char *c;
3406
3407
3408 if (do_bswap)
3409 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3410 else
3411 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3412
3413 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3414
3415 for (i = 0; i < nwords; i += 2) {
3416 (void) printf("%06llx: %016llx %016llx ",
3417 (u_longlong_t)(i * sizeof (uint64_t)),
3418 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3419 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3420
3421 c = (char *)&d[i];
3422 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3423 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3424 (void) printf("\n");
3425 }
3426 }
3427
3428 /*
3429 * There are two acceptable formats:
3430 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3431 * child[.child]* - For example: 0.1.1
3432 *
3433 * The second form can be used to specify arbitrary vdevs anywhere
3434 * in the heirarchy. For example, in a pool with a mirror of
3435 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3436 */
3437 static vdev_t *
3438 zdb_vdev_lookup(vdev_t *vdev, const char *path)
3439 {
3440 char *s, *p, *q;
3441 unsigned i;
3442
3443 if (vdev == NULL)
3444 return (NULL);
3445
3446 /* First, assume the x.x.x.x format */
3447 i = strtoul(path, &s, 10);
3448 if (s == path || (s && *s != '.' && *s != '\0'))
3449 goto name;
3450 if (i >= vdev->vdev_children)
3451 return (NULL);
3452
3453 vdev = vdev->vdev_child[i];
3454 if (*s == '\0')
3455 return (vdev);
3456 return (zdb_vdev_lookup(vdev, s+1));
3457
3458 name:
3459 for (i = 0; i < vdev->vdev_children; i++) {
3460 vdev_t *vc = vdev->vdev_child[i];
3461
3462 if (vc->vdev_path == NULL) {
3463 vc = zdb_vdev_lookup(vc, path);
3464 if (vc == NULL)
3465 continue;
3466 else
3467 return (vc);
3468 }
3469
3470 p = strrchr(vc->vdev_path, '/');
3471 p = p ? p + 1 : vc->vdev_path;
3472 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3473
3474 if (strcmp(vc->vdev_path, path) == 0)
3475 return (vc);
3476 if (strcmp(p, path) == 0)
3477 return (vc);
3478 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3479 return (vc);
3480 }
3481
3482 return (NULL);
3483 }
3484
3485 /* ARGSUSED */
3486 static int
3487 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused)
3488 {
3489 return (random_get_pseudo_bytes(buf, len));
3490 }
3491
3492 /*
3493 * Read a block from a pool and print it out. The syntax of the
3494 * block descriptor is:
3495 *
3496 * pool:vdev_specifier:offset:size[:flags]
3497 *
3498 * pool - The name of the pool you wish to read from
3499 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3500 * offset - offset, in hex, in bytes
3501 * size - Amount of data to read, in hex, in bytes
3502 * flags - A string of characters specifying options
3503 * b: Decode a blkptr at given offset within block
3504 * *c: Calculate and display checksums
3505 * d: Decompress data before dumping
3506 * e: Byteswap data before dumping
3507 * g: Display data as a gang block header
3508 * i: Display as an indirect block
3509 * p: Do I/O to physical offset
3510 * r: Dump raw data to stdout
3511 *
3512 * * = not yet implemented
3513 */
3514 static void
3515 zdb_read_block(char *thing, spa_t *spa)
3516 {
3517 blkptr_t blk, *bp = &blk;
3518 dva_t *dva = bp->blk_dva;
3519 int flags = 0;
3520 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3521 zio_t *zio;
3522 vdev_t *vd;
3523 abd_t *pabd;
3524 void *lbuf, *buf;
3525 const char *s, *vdev;
3526 char *p, *dup, *flagstr;
3527 int i, error;
3528
3529 dup = strdup(thing);
3530 s = strtok(dup, ":");
3531 vdev = s ? s : "";
3532 s = strtok(NULL, ":");
3533 offset = strtoull(s ? s : "", NULL, 16);
3534 s = strtok(NULL, ":");
3535 size = strtoull(s ? s : "", NULL, 16);
3536 s = strtok(NULL, ":");
3537 if (s)
3538 flagstr = strdup(s);
3539 else
3540 flagstr = strdup("");
3541
3542 s = NULL;
3543 if (size == 0)
3544 s = "size must not be zero";
3545 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3546 s = "size must be a multiple of sector size";
3547 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3548 s = "offset must be a multiple of sector size";
3549 if (s) {
3550 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3551 free(dup);
3552 return;
3553 }
3554
3555 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3556 for (i = 0; flagstr[i]; i++) {
3557 int bit = flagbits[(uchar_t)flagstr[i]];
3558
3559 if (bit == 0) {
3560 (void) printf("***Invalid flag: %c\n",
3561 flagstr[i]);
3562 continue;
3563 }
3564 flags |= bit;
3565
3566 /* If it's not something with an argument, keep going */
3567 if ((bit & (ZDB_FLAG_CHECKSUM |
3568 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3569 continue;
3570
3571 p = &flagstr[i + 1];
3572 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3573 blkptr_offset = strtoull(p, &p, 16);
3574 if (*p != ':' && *p != '\0') {
3575 (void) printf("***Invalid flag arg: '%s'\n", s);
3576 free(dup);
3577 return;
3578 }
3579 }
3580 }
3581 free(flagstr);
3582
3583 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3584 if (vd == NULL) {
3585 (void) printf("***Invalid vdev: %s\n", vdev);
3586 free(dup);
3587 return;
3588 } else {
3589 if (vd->vdev_path)
3590 (void) fprintf(stderr, "Found vdev: %s\n",
3591 vd->vdev_path);
3592 else
3593 (void) fprintf(stderr, "Found vdev type: %s\n",
3594 vd->vdev_ops->vdev_op_type);
3595 }
3596
3597 psize = size;
3598 lsize = size;
3599
3600 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE);
3601 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3602
3603 BP_ZERO(bp);
3604
3605 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3606 DVA_SET_OFFSET(&dva[0], offset);
3607 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3608 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3609
3610 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3611
3612 BP_SET_LSIZE(bp, lsize);
3613 BP_SET_PSIZE(bp, psize);
3614 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3615 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3616 BP_SET_TYPE(bp, DMU_OT_NONE);
3617 BP_SET_LEVEL(bp, 0);
3618 BP_SET_DEDUP(bp, 0);
3619 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3620
3621 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3622 zio = zio_root(spa, NULL, NULL, 0);
3623
3624 if (vd == vd->vdev_top) {
3625 /*
3626 * Treat this as a normal block read.
3627 */
3628 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
3629 ZIO_PRIORITY_SYNC_READ,
3630 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3631 } else {
3632 /*
3633 * Treat this as a vdev child I/O.
3634 */
3635 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
3636 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3637 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3638 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3639 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3640 }
3641
3642 error = zio_wait(zio);
3643 spa_config_exit(spa, SCL_STATE, FTAG);
3644
3645 if (error) {
3646 (void) printf("Read of %s failed, error: %d\n", thing, error);
3647 goto out;
3648 }
3649
3650 if (flags & ZDB_FLAG_DECOMPRESS) {
3651 /*
3652 * We don't know how the data was compressed, so just try
3653 * every decompress function at every inflated blocksize.
3654 */
3655 enum zio_compress c;
3656 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3657 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3658
3659 abd_copy_to_buf(pbuf2, pabd, psize);
3660
3661 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize,
3662 random_get_pseudo_bytes_cb, NULL));
3663
3664 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3665 SPA_MAXBLOCKSIZE - psize));
3666
3667 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3668 lsize -= SPA_MINBLOCKSIZE) {
3669 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3670 if (zio_decompress_data(c, pabd,
3671 lbuf, psize, lsize) == 0 &&
3672 zio_decompress_data_buf(c, pbuf2,
3673 lbuf2, psize, lsize) == 0 &&
3674 bcmp(lbuf, lbuf2, lsize) == 0)
3675 break;
3676 }
3677 if (c != ZIO_COMPRESS_FUNCTIONS)
3678 break;
3679 lsize -= SPA_MINBLOCKSIZE;
3680 }
3681
3682 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3683 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3684
3685 if (lsize <= psize) {
3686 (void) printf("Decompress of %s failed\n", thing);
3687 goto out;
3688 }
3689 buf = lbuf;
3690 size = lsize;
3691 } else {
3692 buf = abd_to_buf(pabd);
3693 size = psize;
3694 }
3695
3696 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3697 zdb_print_blkptr((blkptr_t *)(void *)
3698 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3699 else if (flags & ZDB_FLAG_RAW)
3700 zdb_dump_block_raw(buf, size, flags);
3701 else if (flags & ZDB_FLAG_INDIRECT)
3702 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3703 flags);
3704 else if (flags & ZDB_FLAG_GBH)
3705 zdb_dump_gbh(buf, flags);
3706 else
3707 zdb_dump_block(thing, buf, size, flags);
3708
3709 out:
3710 abd_free(pabd);
3711 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3712 free(dup);
3713 }
3714
3715 static void
3716 zdb_embedded_block(char *thing)
3717 {
3718 blkptr_t bp;
3719 unsigned long long *words = (void *)&bp;
3720 char buf[SPA_MAXBLOCKSIZE];
3721 int err;
3722
3723 bzero(&bp, sizeof (bp));
3724 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
3725 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
3726 words + 0, words + 1, words + 2, words + 3,
3727 words + 4, words + 5, words + 6, words + 7,
3728 words + 8, words + 9, words + 10, words + 11,
3729 words + 12, words + 13, words + 14, words + 15);
3730 if (err != 16) {
3731 (void) printf("invalid input format\n");
3732 exit(1);
3733 }
3734 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
3735 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
3736 if (err != 0) {
3737 (void) printf("decode failed: %u\n", err);
3738 exit(1);
3739 }
3740 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
3741 }
3742
3743 static boolean_t
3744 pool_match(nvlist_t *cfg, char *tgt)
3745 {
3746 uint64_t v, guid = strtoull(tgt, NULL, 0);
3747 char *s;
3748
3749 if (guid != 0) {
3750 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3751 return (v == guid);
3752 } else {
3753 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3754 return (strcmp(s, tgt) == 0);
3755 }
3756 return (B_FALSE);
3757 }
3758
3759 static char *
3760 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3761 {
3762 nvlist_t *pools;
3763 nvlist_t *match = NULL;
3764 char *name = NULL;
3765 char *sepp = NULL;
3766 char sep = '\0';
3767 int count = 0;
3768 importargs_t args;
3769
3770 bzero(&args, sizeof (args));
3771 args.paths = dirc;
3772 args.path = dirv;
3773 args.can_be_active = B_TRUE;
3774
3775 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3776 sep = *sepp;
3777 *sepp = '\0';
3778 }
3779
3780 pools = zpool_search_import(g_zfs, &args);
3781
3782 if (pools != NULL) {
3783 nvpair_t *elem = NULL;
3784 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3785 verify(nvpair_value_nvlist(elem, configp) == 0);
3786 if (pool_match(*configp, *target)) {
3787 count++;
3788 if (match != NULL) {
3789 /* print previously found config */
3790 if (name != NULL) {
3791 (void) printf("%s\n", name);
3792 dump_nvlist(match, 8);
3793 name = NULL;
3794 }
3795 (void) printf("%s\n",
3796 nvpair_name(elem));
3797 dump_nvlist(*configp, 8);
3798 } else {
3799 match = *configp;
3800 name = nvpair_name(elem);
3801 }
3802 }
3803 }
3804 }
3805 if (count > 1)
3806 (void) fatal("\tMatched %d pools - use pool GUID "
3807 "instead of pool name or \n"
3808 "\tpool name part of a dataset name to select pool", count);
3809
3810 if (sepp)
3811 *sepp = sep;
3812 /*
3813 * If pool GUID was specified for pool id, replace it with pool name
3814 */
3815 if (name && (strstr(*target, name) != *target)) {
3816 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3817
3818 *target = umem_alloc(sz, UMEM_NOFAIL);
3819 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3820 }
3821
3822 *configp = name ? match : NULL;
3823
3824 return (name);
3825 }
3826
3827 int
3828 main(int argc, char **argv)
3829 {
3830 int c;
3831 struct rlimit rl = { 1024, 1024 };
3832 spa_t *spa = NULL;
3833 objset_t *os = NULL;
3834 int dump_all = 1;
3835 int verbose = 0;
3836 int error = 0;
3837 char **searchdirs = NULL;
3838 int nsearch = 0;
3839 char *target;
3840 nvlist_t *policy = NULL;
3841 uint64_t max_txg = UINT64_MAX;
3842 int flags = ZFS_IMPORT_MISSING_LOG;
3843 int rewind = ZPOOL_NEVER_REWIND;
3844 char *spa_config_path_env;
3845 boolean_t target_is_spa = B_TRUE;
3846
3847 (void) setrlimit(RLIMIT_NOFILE, &rl);
3848 (void) enable_extended_FILE_stdio(-1, -1);
3849
3850 dprintf_setup(&argc, argv);
3851
3852 /*
3853 * If there is an environment variable SPA_CONFIG_PATH it overrides
3854 * default spa_config_path setting. If -U flag is specified it will
3855 * override this environment variable settings once again.
3856 */
3857 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3858 if (spa_config_path_env != NULL)
3859 spa_config_path = spa_config_path_env;
3860
3861 while ((c = getopt(argc, argv,
3862 "AbcCdDeEFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
3863 switch (c) {
3864 case 'b':
3865 case 'c':
3866 case 'C':
3867 case 'd':
3868 case 'D':
3869 case 'E':
3870 case 'G':
3871 case 'h':
3872 case 'i':
3873 case 'l':
3874 case 'm':
3875 case 'M':
3876 case 'O':
3877 case 'R':
3878 case 's':
3879 case 'S':
3880 case 'u':
3881 dump_opt[c]++;
3882 dump_all = 0;
3883 break;
3884 case 'A':
3885 case 'e':
3886 case 'F':
3887 case 'L':
3888 case 'P':
3889 case 'q':
3890 case 'X':
3891 dump_opt[c]++;
3892 break;
3893 /* NB: Sort single match options below. */
3894 case 'I':
3895 max_inflight = strtoull(optarg, NULL, 0);
3896 if (max_inflight == 0) {
3897 (void) fprintf(stderr, "maximum number "
3898 "of inflight I/Os must be greater "
3899 "than 0\n");
3900 usage();
3901 }
3902 break;
3903 case 'o':
3904 error = set_global_var(optarg);
3905 if (error != 0)
3906 usage();
3907 break;
3908 case 'p':
3909 if (searchdirs == NULL) {
3910 searchdirs = umem_alloc(sizeof (char *),
3911 UMEM_NOFAIL);
3912 } else {
3913 char **tmp = umem_alloc((nsearch + 1) *
3914 sizeof (char *), UMEM_NOFAIL);
3915 bcopy(searchdirs, tmp, nsearch *
3916 sizeof (char *));
3917 umem_free(searchdirs,
3918 nsearch * sizeof (char *));
3919 searchdirs = tmp;
3920 }
3921 searchdirs[nsearch++] = optarg;
3922 break;
3923 case 't':
3924 max_txg = strtoull(optarg, NULL, 0);
3925 if (max_txg < TXG_INITIAL) {
3926 (void) fprintf(stderr, "incorrect txg "
3927 "specified: %s\n", optarg);
3928 usage();
3929 }
3930 break;
3931 case 'U':
3932 spa_config_path = optarg;
3933 if (spa_config_path[0] != '/') {
3934 (void) fprintf(stderr,
3935 "cachefile must be an absolute path "
3936 "(i.e. start with a slash)\n");
3937 usage();
3938 }
3939 break;
3940 case 'v':
3941 verbose++;
3942 break;
3943 case 'V':
3944 flags = ZFS_IMPORT_VERBATIM;
3945 break;
3946 case 'x':
3947 vn_dumpdir = optarg;
3948 break;
3949 default:
3950 usage();
3951 break;
3952 }
3953 }
3954
3955 if (!dump_opt['e'] && searchdirs != NULL) {
3956 (void) fprintf(stderr, "-p option requires use of -e\n");
3957 usage();
3958 }
3959
3960 /*
3961 * ZDB does not typically re-read blocks; therefore limit the ARC
3962 * to 256 MB, which can be used entirely for metadata.
3963 */
3964 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
3965
3966 /*
3967 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
3968 * "zdb -b" uses traversal prefetch which uses async reads.
3969 * For good performance, let several of them be active at once.
3970 */
3971 zfs_vdev_async_read_max_active = 10;
3972
3973 /*
3974 * Disable reference tracking for better performance.
3975 */
3976 reference_tracking_enable = B_FALSE;
3977
3978 kernel_init(FREAD);
3979 g_zfs = libzfs_init();
3980 ASSERT(g_zfs != NULL);
3981
3982 if (dump_all)
3983 verbose = MAX(verbose, 1);
3984
3985 for (c = 0; c < 256; c++) {
3986 if (dump_all && strchr("AeEFlLOPRSX", c) == NULL)
3987 dump_opt[c] = 1;
3988 if (dump_opt[c])
3989 dump_opt[c] += verbose;
3990 }
3991
3992 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3993 zfs_recover = (dump_opt['A'] > 1);
3994
3995 argc -= optind;
3996 argv += optind;
3997
3998 if (argc < 2 && dump_opt['R'])
3999 usage();
4000
4001 if (dump_opt['E']) {
4002 if (argc != 1)
4003 usage();
4004 zdb_embedded_block(argv[0]);
4005 return (0);
4006 }
4007
4008 if (argc < 1) {
4009 if (!dump_opt['e'] && dump_opt['C']) {
4010 dump_cachefile(spa_config_path);
4011 return (0);
4012 }
4013 usage();
4014 }
4015
4016 if (dump_opt['l'])
4017 return (dump_label(argv[0]));
4018
4019 if (dump_opt['O']) {
4020 if (argc != 2)
4021 usage();
4022 dump_opt['v'] = verbose + 3;
4023 return (dump_path(argv[0], argv[1]));
4024 }
4025
4026 if (dump_opt['X'] || dump_opt['F'])
4027 rewind = ZPOOL_DO_REWIND |
4028 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
4029
4030 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
4031 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
4032 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
4033 fatal("internal error: %s", strerror(ENOMEM));
4034
4035 error = 0;
4036 target = argv[0];
4037
4038 if (dump_opt['e']) {
4039 nvlist_t *cfg = NULL;
4040 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
4041
4042 error = ENOENT;
4043 if (name) {
4044 if (dump_opt['C'] > 1) {
4045 (void) printf("\nConfiguration for import:\n");
4046 dump_nvlist(cfg, 8);
4047 }
4048 if (nvlist_add_nvlist(cfg,
4049 ZPOOL_REWIND_POLICY, policy) != 0) {
4050 fatal("can't open '%s': %s",
4051 target, strerror(ENOMEM));
4052 }
4053 error = spa_import(name, cfg, NULL, flags);
4054 }
4055 }
4056
4057 if (strpbrk(target, "/@") != NULL) {
4058 size_t targetlen;
4059
4060 target_is_spa = B_FALSE;
4061 /*
4062 * Remove any trailing slash. Later code would get confused
4063 * by it, but we want to allow it so that "pool/" can
4064 * indicate that we want to dump the topmost filesystem,
4065 * rather than the whole pool.
4066 */
4067 targetlen = strlen(target);
4068 if (targetlen != 0 && target[targetlen - 1] == '/')
4069 target[targetlen - 1] = '\0';
4070 }
4071
4072 if (error == 0) {
4073 if (target_is_spa || dump_opt['R']) {
4074 error = spa_open_rewind(target, &spa, FTAG, policy,
4075 NULL);
4076 if (error) {
4077 /*
4078 * If we're missing the log device then
4079 * try opening the pool after clearing the
4080 * log state.
4081 */
4082 mutex_enter(&spa_namespace_lock);
4083 if ((spa = spa_lookup(target)) != NULL &&
4084 spa->spa_log_state == SPA_LOG_MISSING) {
4085 spa->spa_log_state = SPA_LOG_CLEAR;
4086 error = 0;
4087 }
4088 mutex_exit(&spa_namespace_lock);
4089
4090 if (!error) {
4091 error = spa_open_rewind(target, &spa,
4092 FTAG, policy, NULL);
4093 }
4094 }
4095 } else {
4096 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
4097 }
4098 }
4099 nvlist_free(policy);
4100
4101 if (error)
4102 fatal("can't open '%s': %s", target, strerror(error));
4103
4104 argv++;
4105 argc--;
4106 if (!dump_opt['R']) {
4107 if (argc > 0) {
4108 zopt_objects = argc;
4109 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
4110 for (unsigned i = 0; i < zopt_objects; i++) {
4111 errno = 0;
4112 zopt_object[i] = strtoull(argv[i], NULL, 0);
4113 if (zopt_object[i] == 0 && errno != 0)
4114 fatal("bad number %s: %s",
4115 argv[i], strerror(errno));
4116 }
4117 }
4118 if (os != NULL) {
4119 dump_dir(os);
4120 } else if (zopt_objects > 0 && !dump_opt['m']) {
4121 dump_dir(spa->spa_meta_objset);
4122 } else {
4123 dump_zpool(spa);
4124 }
4125 } else {
4126 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
4127 flagbits['c'] = ZDB_FLAG_CHECKSUM;
4128 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
4129 flagbits['e'] = ZDB_FLAG_BSWAP;
4130 flagbits['g'] = ZDB_FLAG_GBH;
4131 flagbits['i'] = ZDB_FLAG_INDIRECT;
4132 flagbits['p'] = ZDB_FLAG_PHYS;
4133 flagbits['r'] = ZDB_FLAG_RAW;
4134
4135 for (int i = 0; i < argc; i++)
4136 zdb_read_block(argv[i], spa);
4137 }
4138
4139 if (os != NULL)
4140 close_objset(os, FTAG);
4141 else
4142 spa_close(spa, FTAG);
4143
4144 fuid_table_destroy();
4145
4146 dump_debug_buffer();
4147
4148 libzfs_fini(g_zfs);
4149 kernel_fini();
4150
4151 return (0);
4152 }