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640 number_to_scaled_string is duplicated in several commands
[unleashed.git] / usr / src / cmd / zdb / zdb.c
blob5dcb12f5bf2e3cbc00f6b7f58247b3b07c29e722
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2017 Nexenta Systems, Inc.
27 */
28
29 #include <stdio.h>
30 #include <unistd.h>
31 #include <stdio_ext.h>
32 #include <stdlib.h>
33 #include <ctype.h>
34 #include <sys/zfs_context.h>
35 #include <sys/spa.h>
36 #include <sys/spa_impl.h>
37 #include <sys/dmu.h>
38 #include <sys/zap.h>
39 #include <sys/fs/zfs.h>
40 #include <sys/zfs_znode.h>
41 #include <sys/zfs_sa.h>
42 #include <sys/sa.h>
43 #include <sys/sa_impl.h>
44 #include <sys/vdev.h>
45 #include <sys/vdev_impl.h>
46 #include <sys/metaslab_impl.h>
47 #include <sys/dmu_objset.h>
48 #include <sys/dsl_dir.h>
49 #include <sys/dsl_dataset.h>
50 #include <sys/dsl_pool.h>
51 #include <sys/dbuf.h>
52 #include <sys/zil.h>
53 #include <sys/zil_impl.h>
54 #include <sys/stat.h>
55 #include <sys/resource.h>
56 #include <sys/dmu_traverse.h>
57 #include <sys/zio_checksum.h>
58 #include <sys/zio_compress.h>
59 #include <sys/zfs_fuid.h>
60 #include <sys/arc.h>
61 #include <sys/ddt.h>
62 #include <sys/zfeature.h>
63 #include <sys/abd.h>
64 #include <sys/blkptr.h>
65 #include <zfs_comutil.h>
66 #include <libcmdutils.h>
67 #undef verify
68 #include <libzfs.h>
69
70 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
71 zio_compress_table[(idx)].ci_name : "UNKNOWN")
72 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
73 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
74 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
75 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
76 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
77 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
78 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
79 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
80
81 #ifndef lint
82 extern int reference_tracking_enable;
83 extern boolean_t zfs_recover;
84 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
85 extern int zfs_vdev_async_read_max_active;
86 #else
87 int reference_tracking_enable;
88 boolean_t zfs_recover;
89 uint64_t zfs_arc_max, zfs_arc_meta_limit;
90 int zfs_vdev_async_read_max_active;
91 #endif
92
93 const char cmdname[] = "zdb";
94 uint8_t dump_opt[256];
95
96 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
97
98 extern void dump_intent_log(zilog_t *);
99 uint64_t *zopt_object = NULL;
100 int zopt_objects = 0;
101 libzfs_handle_t *g_zfs;
102 uint64_t max_inflight = 1000;
103
104 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
105
106 /*
107 * These libumem hooks provide a reasonable set of defaults for the allocator's
108 * debugging facilities.
109 */
110 const char *
111 _umem_debug_init()
112 {
113 return ("default,verbose"); /* $UMEM_DEBUG setting */
114 }
115
116 const char *
117 _umem_logging_init(void)
118 {
119 return ("fail,contents"); /* $UMEM_LOGGING setting */
120 }
121
122 static void
123 usage(void)
124 {
125 (void) fprintf(stderr,
126 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] "
127 "[-I <inflight I/Os>]\n"
128 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
129 "\t\t[<poolname> [<object> ...]]\n"
130 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> "
131 "[<object> ...]\n"
132 "\t%s -C [-A] [-U <cache>]\n"
133 "\t%s -l [-Aqu] <device>\n"
134 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
135 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
136 "\t%s -O <dataset> <path>\n"
137 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
138 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
139 "\t%s -E [-A] word0:word1:...:word15\n"
140 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
141 "<poolname>\n\n",
142 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
143 cmdname, cmdname);
144
145 (void) fprintf(stderr, " Dataset name must include at least one "
146 "separator character '/' or '@'\n");
147 (void) fprintf(stderr, " If dataset name is specified, only that "
148 "dataset is dumped\n");
149 (void) fprintf(stderr, " If object numbers are specified, only "
150 "those objects are dumped\n\n");
151 (void) fprintf(stderr, " Options to control amount of output:\n");
152 (void) fprintf(stderr, " -b block statistics\n");
153 (void) fprintf(stderr, " -c checksum all metadata (twice for "
154 "all data) blocks\n");
155 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
156 (void) fprintf(stderr, " -d dataset(s)\n");
157 (void) fprintf(stderr, " -D dedup statistics\n");
158 (void) fprintf(stderr, " -E decode and display block from an "
159 "embedded block pointer\n");
160 (void) fprintf(stderr, " -h pool history\n");
161 (void) fprintf(stderr, " -i intent logs\n");
162 (void) fprintf(stderr, " -l read label contents\n");
163 (void) fprintf(stderr, " -L disable leak tracking (do not "
164 "load spacemaps)\n");
165 (void) fprintf(stderr, " -m metaslabs\n");
166 (void) fprintf(stderr, " -M metaslab groups\n");
167 (void) fprintf(stderr, " -O perform object lookups by path\n");
168 (void) fprintf(stderr, " -R read and display block from a "
169 "device\n");
170 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
171 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
172 (void) fprintf(stderr, " -v verbose (applies to all "
173 "others)\n\n");
174 (void) fprintf(stderr, " Below options are intended for use "
175 "with other options:\n");
176 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
177 "panic recovery (-AA) or both (-AAA)\n");
178 (void) fprintf(stderr, " -e pool is exported/destroyed/"
179 "has altroot/not in a cachefile\n");
180 (void) fprintf(stderr, " -F attempt automatic rewind within "
181 "safe range of transaction groups\n");
182 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
183 "exiting\n");
184 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
185 "specify the maximum number of "
186 "checksumming I/Os [default is 200]\n");
187 (void) fprintf(stderr, " -o <variable>=<value> set global "
188 "variable to an unsigned 32-bit integer value\n");
189 (void) fprintf(stderr, " -p <path> -- use one or more with "
190 "-e to specify path to vdev dir\n");
191 (void) fprintf(stderr, " -P print numbers in parseable form\n");
192 (void) fprintf(stderr, " -q don't print label contents\n");
193 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
194 "searching for uberblocks\n");
195 (void) fprintf(stderr, " -u uberblock\n");
196 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
197 "cachefile\n");
198 (void) fprintf(stderr, " -V do verbatim import\n");
199 (void) fprintf(stderr, " -x <dumpdir> -- "
200 "dump all read blocks into specified directory\n");
201 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
202 "work with dataset)\n\n");
203 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
204 "to make only that option verbose\n");
205 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
206 exit(1);
207 }
208
209 static void
210 dump_debug_buffer()
211 {
212 if (dump_opt['G']) {
213 (void) printf("\n");
214 zfs_dbgmsg_print("zdb");
215 }
216 }
217
218 /*
219 * Called for usage errors that are discovered after a call to spa_open(),
220 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
221 */
222
223 static void
224 fatal(const char *fmt, ...)
225 {
226 va_list ap;
227
228 va_start(ap, fmt);
229 (void) fprintf(stderr, "%s: ", cmdname);
230 (void) vfprintf(stderr, fmt, ap);
231 va_end(ap);
232 (void) fprintf(stderr, "\n");
233
234 dump_debug_buffer();
235
236 exit(1);
237 }
238
239 /* ARGSUSED */
240 static void
241 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
242 {
243 nvlist_t *nv;
244 size_t nvsize = *(uint64_t *)data;
245 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
246
247 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
248
249 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
250
251 umem_free(packed, nvsize);
252
253 dump_nvlist(nv, 8);
254
255 nvlist_free(nv);
256 }
257
258 /* ARGSUSED */
259 static void
260 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
261 {
262 spa_history_phys_t *shp = data;
263
264 if (shp == NULL)
265 return;
266
267 (void) printf("\t\tpool_create_len = %llu\n",
268 (u_longlong_t)shp->sh_pool_create_len);
269 (void) printf("\t\tphys_max_off = %llu\n",
270 (u_longlong_t)shp->sh_phys_max_off);
271 (void) printf("\t\tbof = %llu\n",
272 (u_longlong_t)shp->sh_bof);
273 (void) printf("\t\teof = %llu\n",
274 (u_longlong_t)shp->sh_eof);
275 (void) printf("\t\trecords_lost = %llu\n",
276 (u_longlong_t)shp->sh_records_lost);
277 }
278
279 static void
280 zdb_nicenum(uint64_t num, char *buf, size_t buflen)
281 {
282 if (dump_opt['P'])
283 (void) snprintf(buf, buflen, "%llu", (longlong_t)num);
284 else
285 nicenum(num, buf, sizeof (buf));
286 }
287
288 const char histo_stars[] = "****************************************";
289 const int histo_width = sizeof (histo_stars) - 1;
290
291 static void
292 dump_histogram(const uint64_t *histo, int size, int offset)
293 {
294 int i;
295 int minidx = size - 1;
296 int maxidx = 0;
297 uint64_t max = 0;
298
299 for (i = 0; i < size; i++) {
300 if (histo[i] > max)
301 max = histo[i];
302 if (histo[i] > 0 && i > maxidx)
303 maxidx = i;
304 if (histo[i] > 0 && i < minidx)
305 minidx = i;
306 }
307
308 if (max < histo_width)
309 max = histo_width;
310
311 for (i = minidx; i <= maxidx; i++) {
312 (void) printf("\t\t\t%3u: %6llu %s\n",
313 i + offset, (u_longlong_t)histo[i],
314 &histo_stars[(max - histo[i]) * histo_width / max]);
315 }
316 }
317
318 static void
319 dump_zap_stats(objset_t *os, uint64_t object)
320 {
321 int error;
322 zap_stats_t zs;
323
324 error = zap_get_stats(os, object, &zs);
325 if (error)
326 return;
327
328 if (zs.zs_ptrtbl_len == 0) {
329 ASSERT(zs.zs_num_blocks == 1);
330 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
331 (u_longlong_t)zs.zs_blocksize,
332 (u_longlong_t)zs.zs_num_entries);
333 return;
334 }
335
336 (void) printf("\tFat ZAP stats:\n");
337
338 (void) printf("\t\tPointer table:\n");
339 (void) printf("\t\t\t%llu elements\n",
340 (u_longlong_t)zs.zs_ptrtbl_len);
341 (void) printf("\t\t\tzt_blk: %llu\n",
342 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
343 (void) printf("\t\t\tzt_numblks: %llu\n",
344 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
345 (void) printf("\t\t\tzt_shift: %llu\n",
346 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
347 (void) printf("\t\t\tzt_blks_copied: %llu\n",
348 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
349 (void) printf("\t\t\tzt_nextblk: %llu\n",
350 (u_longlong_t)zs.zs_ptrtbl_nextblk);
351
352 (void) printf("\t\tZAP entries: %llu\n",
353 (u_longlong_t)zs.zs_num_entries);
354 (void) printf("\t\tLeaf blocks: %llu\n",
355 (u_longlong_t)zs.zs_num_leafs);
356 (void) printf("\t\tTotal blocks: %llu\n",
357 (u_longlong_t)zs.zs_num_blocks);
358 (void) printf("\t\tzap_block_type: 0x%llx\n",
359 (u_longlong_t)zs.zs_block_type);
360 (void) printf("\t\tzap_magic: 0x%llx\n",
361 (u_longlong_t)zs.zs_magic);
362 (void) printf("\t\tzap_salt: 0x%llx\n",
363 (u_longlong_t)zs.zs_salt);
364
365 (void) printf("\t\tLeafs with 2^n pointers:\n");
366 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
367
368 (void) printf("\t\tBlocks with n*5 entries:\n");
369 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
370
371 (void) printf("\t\tBlocks n/10 full:\n");
372 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
373
374 (void) printf("\t\tEntries with n chunks:\n");
375 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
376
377 (void) printf("\t\tBuckets with n entries:\n");
378 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
379 }
380
381 /*ARGSUSED*/
382 static void
383 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
384 {
385 }
386
387 /*ARGSUSED*/
388 static void
389 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
390 {
391 (void) printf("\tUNKNOWN OBJECT TYPE\n");
392 }
393
394 /*ARGSUSED*/
395 void
396 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
397 {
398 }
399
400 /*ARGSUSED*/
401 static void
402 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
403 {
404 }
405
406 /*ARGSUSED*/
407 static void
408 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
409 {
410 zap_cursor_t zc;
411 zap_attribute_t attr;
412 void *prop;
413 int i;
414
415 dump_zap_stats(os, object);
416 (void) printf("\n");
417
418 for (zap_cursor_init(&zc, os, object);
419 zap_cursor_retrieve(&zc, &attr) == 0;
420 zap_cursor_advance(&zc)) {
421 (void) printf("\t\t%s = ", attr.za_name);
422 if (attr.za_num_integers == 0) {
423 (void) printf("\n");
424 continue;
425 }
426 prop = umem_zalloc(attr.za_num_integers *
427 attr.za_integer_length, UMEM_NOFAIL);
428 (void) zap_lookup(os, object, attr.za_name,
429 attr.za_integer_length, attr.za_num_integers, prop);
430 if (attr.za_integer_length == 1) {
431 (void) printf("%s", (char *)prop);
432 } else {
433 for (i = 0; i < attr.za_num_integers; i++) {
434 switch (attr.za_integer_length) {
435 case 2:
436 (void) printf("%u ",
437 ((uint16_t *)prop)[i]);
438 break;
439 case 4:
440 (void) printf("%u ",
441 ((uint32_t *)prop)[i]);
442 break;
443 case 8:
444 (void) printf("%lld ",
445 (u_longlong_t)((int64_t *)prop)[i]);
446 break;
447 }
448 }
449 }
450 (void) printf("\n");
451 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
452 }
453 zap_cursor_fini(&zc);
454 }
455
456 static void
457 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
458 {
459 bpobj_phys_t *bpop = data;
460 char bytes[32], comp[32], uncomp[32];
461
462 /* make sure the output won't get truncated */
463 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
464 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
465 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
466
467 if (bpop == NULL)
468 return;
469
470 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes));
471 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp));
472 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp));
473
474 (void) printf("\t\tnum_blkptrs = %llu\n",
475 (u_longlong_t)bpop->bpo_num_blkptrs);
476 (void) printf("\t\tbytes = %s\n", bytes);
477 if (size >= BPOBJ_SIZE_V1) {
478 (void) printf("\t\tcomp = %s\n", comp);
479 (void) printf("\t\tuncomp = %s\n", uncomp);
480 }
481 if (size >= sizeof (*bpop)) {
482 (void) printf("\t\tsubobjs = %llu\n",
483 (u_longlong_t)bpop->bpo_subobjs);
484 (void) printf("\t\tnum_subobjs = %llu\n",
485 (u_longlong_t)bpop->bpo_num_subobjs);
486 }
487
488 if (dump_opt['d'] < 5)
489 return;
490
491 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
492 char blkbuf[BP_SPRINTF_LEN];
493 blkptr_t bp;
494
495 int err = dmu_read(os, object,
496 i * sizeof (bp), sizeof (bp), &bp, 0);
497 if (err != 0) {
498 (void) printf("got error %u from dmu_read\n", err);
499 break;
500 }
501 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
502 (void) printf("\t%s\n", blkbuf);
503 }
504 }
505
506 /* ARGSUSED */
507 static void
508 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
509 {
510 dmu_object_info_t doi;
511
512 VERIFY0(dmu_object_info(os, object, &doi));
513 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
514
515 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
516 if (err != 0) {
517 (void) printf("got error %u from dmu_read\n", err);
518 kmem_free(subobjs, doi.doi_max_offset);
519 return;
520 }
521
522 int64_t last_nonzero = -1;
523 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
524 if (subobjs[i] != 0)
525 last_nonzero = i;
526 }
527
528 for (int64_t i = 0; i <= last_nonzero; i++) {
529 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
530 }
531 kmem_free(subobjs, doi.doi_max_offset);
532 }
533
534 /*ARGSUSED*/
535 static void
536 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
537 {
538 dump_zap_stats(os, object);
539 /* contents are printed elsewhere, properly decoded */
540 }
541
542 /*ARGSUSED*/
543 static void
544 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
545 {
546 zap_cursor_t zc;
547 zap_attribute_t attr;
548
549 dump_zap_stats(os, object);
550 (void) printf("\n");
551
552 for (zap_cursor_init(&zc, os, object);
553 zap_cursor_retrieve(&zc, &attr) == 0;
554 zap_cursor_advance(&zc)) {
555 (void) printf("\t\t%s = ", attr.za_name);
556 if (attr.za_num_integers == 0) {
557 (void) printf("\n");
558 continue;
559 }
560 (void) printf(" %llx : [%d:%d:%d]\n",
561 (u_longlong_t)attr.za_first_integer,
562 (int)ATTR_LENGTH(attr.za_first_integer),
563 (int)ATTR_BSWAP(attr.za_first_integer),
564 (int)ATTR_NUM(attr.za_first_integer));
565 }
566 zap_cursor_fini(&zc);
567 }
568
569 /*ARGSUSED*/
570 static void
571 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
572 {
573 zap_cursor_t zc;
574 zap_attribute_t attr;
575 uint16_t *layout_attrs;
576 int i;
577
578 dump_zap_stats(os, object);
579 (void) printf("\n");
580
581 for (zap_cursor_init(&zc, os, object);
582 zap_cursor_retrieve(&zc, &attr) == 0;
583 zap_cursor_advance(&zc)) {
584 (void) printf("\t\t%s = [", attr.za_name);
585 if (attr.za_num_integers == 0) {
586 (void) printf("\n");
587 continue;
588 }
589
590 VERIFY(attr.za_integer_length == 2);
591 layout_attrs = umem_zalloc(attr.za_num_integers *
592 attr.za_integer_length, UMEM_NOFAIL);
593
594 VERIFY(zap_lookup(os, object, attr.za_name,
595 attr.za_integer_length,
596 attr.za_num_integers, layout_attrs) == 0);
597
598 for (i = 0; i != attr.za_num_integers; i++)
599 (void) printf(" %d ", (int)layout_attrs[i]);
600 (void) printf("]\n");
601 umem_free(layout_attrs,
602 attr.za_num_integers * attr.za_integer_length);
603 }
604 zap_cursor_fini(&zc);
605 }
606
607 /*ARGSUSED*/
608 static void
609 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
610 {
611 zap_cursor_t zc;
612 zap_attribute_t attr;
613 const char *typenames[] = {
614 /* 0 */ "not specified",
615 /* 1 */ "FIFO",
616 /* 2 */ "Character Device",
617 /* 3 */ "3 (invalid)",
618 /* 4 */ "Directory",
619 /* 5 */ "5 (invalid)",
620 /* 6 */ "Block Device",
621 /* 7 */ "7 (invalid)",
622 /* 8 */ "Regular File",
623 /* 9 */ "9 (invalid)",
624 /* 10 */ "Symbolic Link",
625 /* 11 */ "11 (invalid)",
626 /* 12 */ "Socket",
627 /* 13 */ "Door",
628 /* 14 */ "Event Port",
629 /* 15 */ "15 (invalid)",
630 };
631
632 dump_zap_stats(os, object);
633 (void) printf("\n");
634
635 for (zap_cursor_init(&zc, os, object);
636 zap_cursor_retrieve(&zc, &attr) == 0;
637 zap_cursor_advance(&zc)) {
638 (void) printf("\t\t%s = %lld (type: %s)\n",
639 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
640 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
641 }
642 zap_cursor_fini(&zc);
643 }
644
645 int
646 get_dtl_refcount(vdev_t *vd)
647 {
648 int refcount = 0;
649
650 if (vd->vdev_ops->vdev_op_leaf) {
651 space_map_t *sm = vd->vdev_dtl_sm;
652
653 if (sm != NULL &&
654 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
655 return (1);
656 return (0);
657 }
658
659 for (int c = 0; c < vd->vdev_children; c++)
660 refcount += get_dtl_refcount(vd->vdev_child[c]);
661 return (refcount);
662 }
663
664 int
665 get_metaslab_refcount(vdev_t *vd)
666 {
667 int refcount = 0;
668
669 if (vd->vdev_top == vd && !vd->vdev_removing) {
670 for (int m = 0; m < vd->vdev_ms_count; m++) {
671 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
672
673 if (sm != NULL &&
674 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
675 refcount++;
676 }
677 }
678 for (int c = 0; c < vd->vdev_children; c++)
679 refcount += get_metaslab_refcount(vd->vdev_child[c]);
680
681 return (refcount);
682 }
683
684 static int
685 verify_spacemap_refcounts(spa_t *spa)
686 {
687 uint64_t expected_refcount = 0;
688 uint64_t actual_refcount;
689
690 (void) feature_get_refcount(spa,
691 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
692 &expected_refcount);
693 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
694 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
695
696 if (expected_refcount != actual_refcount) {
697 (void) printf("space map refcount mismatch: expected %lld != "
698 "actual %lld\n",
699 (longlong_t)expected_refcount,
700 (longlong_t)actual_refcount);
701 return (2);
702 }
703 return (0);
704 }
705
706 static void
707 dump_spacemap(objset_t *os, space_map_t *sm)
708 {
709 uint64_t alloc, offset, entry;
710 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
711 "INVALID", "INVALID", "INVALID", "INVALID" };
712
713 if (sm == NULL)
714 return;
715
716 /*
717 * Print out the freelist entries in both encoded and decoded form.
718 */
719 alloc = 0;
720 for (offset = 0; offset < space_map_length(sm);
721 offset += sizeof (entry)) {
722 uint8_t mapshift = sm->sm_shift;
723
724 VERIFY0(dmu_read(os, space_map_object(sm), offset,
725 sizeof (entry), &entry, DMU_READ_PREFETCH));
726 if (SM_DEBUG_DECODE(entry)) {
727
728 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
729 (u_longlong_t)(offset / sizeof (entry)),
730 ddata[SM_DEBUG_ACTION_DECODE(entry)],
731 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
732 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
733 } else {
734 (void) printf("\t [%6llu] %c range:"
735 " %010llx-%010llx size: %06llx\n",
736 (u_longlong_t)(offset / sizeof (entry)),
737 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
738 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
739 mapshift) + sm->sm_start),
740 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
741 mapshift) + sm->sm_start +
742 (SM_RUN_DECODE(entry) << mapshift)),
743 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
744 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
745 alloc += SM_RUN_DECODE(entry) << mapshift;
746 else
747 alloc -= SM_RUN_DECODE(entry) << mapshift;
748 }
749 }
750 if (alloc != space_map_allocated(sm)) {
751 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
752 "with space map summary (%llu)\n",
753 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
754 }
755 }
756
757 static void
758 dump_metaslab_stats(metaslab_t *msp)
759 {
760 char maxbuf[32];
761 range_tree_t *rt = msp->ms_tree;
762 avl_tree_t *t = &msp->ms_size_tree;
763 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
764
765 /* max sure nicenum has enough space */
766 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ);
767
768 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf));
769
770 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
771 "segments", avl_numnodes(t), "maxsize", maxbuf,
772 "freepct", free_pct);
773 (void) printf("\tIn-memory histogram:\n");
774 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
775 }
776
777 static void
778 dump_metaslab(metaslab_t *msp)
779 {
780 vdev_t *vd = msp->ms_group->mg_vd;
781 spa_t *spa = vd->vdev_spa;
782 space_map_t *sm = msp->ms_sm;
783 char freebuf[32];
784
785 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf,
786 sizeof (freebuf));
787
788 (void) printf(
789 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
790 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
791 (u_longlong_t)space_map_object(sm), freebuf);
792
793 if (dump_opt['m'] > 2 && !dump_opt['L']) {
794 mutex_enter(&msp->ms_lock);
795 metaslab_load_wait(msp);
796 if (!msp->ms_loaded) {
797 VERIFY0(metaslab_load(msp));
798 range_tree_stat_verify(msp->ms_tree);
799 }
800 dump_metaslab_stats(msp);
801 metaslab_unload(msp);
802 mutex_exit(&msp->ms_lock);
803 }
804
805 if (dump_opt['m'] > 1 && sm != NULL &&
806 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
807 /*
808 * The space map histogram represents free space in chunks
809 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
810 */
811 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
812 (u_longlong_t)msp->ms_fragmentation);
813 dump_histogram(sm->sm_phys->smp_histogram,
814 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
815 }
816
817 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
818 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
819
820 mutex_enter(&msp->ms_lock);
821 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
822 mutex_exit(&msp->ms_lock);
823 }
824 }
825
826 static void
827 print_vdev_metaslab_header(vdev_t *vd)
828 {
829 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
830 (u_longlong_t)vd->vdev_id,
831 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
832 "offset", "spacemap", "free");
833 (void) printf("\t%15s %19s %15s %10s\n",
834 "---------------", "-------------------",
835 "---------------", "-------------");
836 }
837
838 static void
839 dump_metaslab_groups(spa_t *spa)
840 {
841 vdev_t *rvd = spa->spa_root_vdev;
842 metaslab_class_t *mc = spa_normal_class(spa);
843 uint64_t fragmentation;
844
845 metaslab_class_histogram_verify(mc);
846
847 for (int c = 0; c < rvd->vdev_children; c++) {
848 vdev_t *tvd = rvd->vdev_child[c];
849 metaslab_group_t *mg = tvd->vdev_mg;
850
851 if (mg->mg_class != mc)
852 continue;
853
854 metaslab_group_histogram_verify(mg);
855 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
856
857 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
858 "fragmentation",
859 (u_longlong_t)tvd->vdev_id,
860 (u_longlong_t)tvd->vdev_ms_count);
861 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
862 (void) printf("%3s\n", "-");
863 } else {
864 (void) printf("%3llu%%\n",
865 (u_longlong_t)mg->mg_fragmentation);
866 }
867 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
868 }
869
870 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
871 fragmentation = metaslab_class_fragmentation(mc);
872 if (fragmentation == ZFS_FRAG_INVALID)
873 (void) printf("\t%3s\n", "-");
874 else
875 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
876 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
877 }
878
879 static void
880 dump_metaslabs(spa_t *spa)
881 {
882 vdev_t *vd, *rvd = spa->spa_root_vdev;
883 uint64_t m, c = 0, children = rvd->vdev_children;
884
885 (void) printf("\nMetaslabs:\n");
886
887 if (!dump_opt['d'] && zopt_objects > 0) {
888 c = zopt_object[0];
889
890 if (c >= children)
891 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
892
893 if (zopt_objects > 1) {
894 vd = rvd->vdev_child[c];
895 print_vdev_metaslab_header(vd);
896
897 for (m = 1; m < zopt_objects; m++) {
898 if (zopt_object[m] < vd->vdev_ms_count)
899 dump_metaslab(
900 vd->vdev_ms[zopt_object[m]]);
901 else
902 (void) fprintf(stderr, "bad metaslab "
903 "number %llu\n",
904 (u_longlong_t)zopt_object[m]);
905 }
906 (void) printf("\n");
907 return;
908 }
909 children = c + 1;
910 }
911 for (; c < children; c++) {
912 vd = rvd->vdev_child[c];
913 print_vdev_metaslab_header(vd);
914
915 for (m = 0; m < vd->vdev_ms_count; m++)
916 dump_metaslab(vd->vdev_ms[m]);
917 (void) printf("\n");
918 }
919 }
920
921 static void
922 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
923 {
924 const ddt_phys_t *ddp = dde->dde_phys;
925 const ddt_key_t *ddk = &dde->dde_key;
926 char *types[4] = { "ditto", "single", "double", "triple" };
927 char blkbuf[BP_SPRINTF_LEN];
928 blkptr_t blk;
929
930 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
931 if (ddp->ddp_phys_birth == 0)
932 continue;
933 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
934 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
935 (void) printf("index %llx refcnt %llu %s %s\n",
936 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
937 types[p], blkbuf);
938 }
939 }
940
941 static void
942 dump_dedup_ratio(const ddt_stat_t *dds)
943 {
944 double rL, rP, rD, D, dedup, compress, copies;
945
946 if (dds->dds_blocks == 0)
947 return;
948
949 rL = (double)dds->dds_ref_lsize;
950 rP = (double)dds->dds_ref_psize;
951 rD = (double)dds->dds_ref_dsize;
952 D = (double)dds->dds_dsize;
953
954 dedup = rD / D;
955 compress = rL / rP;
956 copies = rD / rP;
957
958 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
959 "dedup * compress / copies = %.2f\n\n",
960 dedup, compress, copies, dedup * compress / copies);
961 }
962
963 static void
964 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
965 {
966 char name[DDT_NAMELEN];
967 ddt_entry_t dde;
968 uint64_t walk = 0;
969 dmu_object_info_t doi;
970 uint64_t count, dspace, mspace;
971 int error;
972
973 error = ddt_object_info(ddt, type, class, &doi);
974
975 if (error == ENOENT)
976 return;
977 ASSERT(error == 0);
978
979 if ((count = ddt_object_count(ddt, type, class)) == 0)
980 return;
981
982 dspace = doi.doi_physical_blocks_512 << 9;
983 mspace = doi.doi_fill_count * doi.doi_data_block_size;
984
985 ddt_object_name(ddt, type, class, name);
986
987 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
988 name,
989 (u_longlong_t)count,
990 (u_longlong_t)(dspace / count),
991 (u_longlong_t)(mspace / count));
992
993 if (dump_opt['D'] < 3)
994 return;
995
996 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
997
998 if (dump_opt['D'] < 4)
999 return;
1000
1001 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
1002 return;
1003
1004 (void) printf("%s contents:\n\n", name);
1005
1006 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
1007 dump_dde(ddt, &dde, walk);
1008
1009 ASSERT(error == ENOENT);
1010
1011 (void) printf("\n");
1012 }
1013
1014 static void
1015 dump_all_ddts(spa_t *spa)
1016 {
1017 ddt_histogram_t ddh_total = { 0 };
1018 ddt_stat_t dds_total = { 0 };
1019
1020 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1021 ddt_t *ddt = spa->spa_ddt[c];
1022 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1023 for (enum ddt_class class = 0; class < DDT_CLASSES;
1024 class++) {
1025 dump_ddt(ddt, type, class);
1026 }
1027 }
1028 }
1029
1030 ddt_get_dedup_stats(spa, &dds_total);
1031
1032 if (dds_total.dds_blocks == 0) {
1033 (void) printf("All DDTs are empty\n");
1034 return;
1035 }
1036
1037 (void) printf("\n");
1038
1039 if (dump_opt['D'] > 1) {
1040 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1041 ddt_get_dedup_histogram(spa, &ddh_total);
1042 zpool_dump_ddt(&dds_total, &ddh_total);
1043 }
1044
1045 dump_dedup_ratio(&dds_total);
1046 }
1047
1048 static void
1049 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1050 {
1051 char *prefix = arg;
1052
1053 (void) printf("%s [%llu,%llu) length %llu\n",
1054 prefix,
1055 (u_longlong_t)start,
1056 (u_longlong_t)(start + size),
1057 (u_longlong_t)(size));
1058 }
1059
1060 static void
1061 dump_dtl(vdev_t *vd, int indent)
1062 {
1063 spa_t *spa = vd->vdev_spa;
1064 boolean_t required;
1065 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
1066 char prefix[256];
1067
1068 spa_vdev_state_enter(spa, SCL_NONE);
1069 required = vdev_dtl_required(vd);
1070 (void) spa_vdev_state_exit(spa, NULL, 0);
1071
1072 if (indent == 0)
1073 (void) printf("\nDirty time logs:\n\n");
1074
1075 (void) printf("\t%*s%s [%s]\n", indent, "",
1076 vd->vdev_path ? vd->vdev_path :
1077 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1078 required ? "DTL-required" : "DTL-expendable");
1079
1080 for (int t = 0; t < DTL_TYPES; t++) {
1081 range_tree_t *rt = vd->vdev_dtl[t];
1082 if (range_tree_space(rt) == 0)
1083 continue;
1084 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1085 indent + 2, "", name[t]);
1086 mutex_enter(rt->rt_lock);
1087 range_tree_walk(rt, dump_dtl_seg, prefix);
1088 mutex_exit(rt->rt_lock);
1089 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1090 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1091 }
1092
1093 for (int c = 0; c < vd->vdev_children; c++)
1094 dump_dtl(vd->vdev_child[c], indent + 4);
1095 }
1096
1097 static void
1098 dump_history(spa_t *spa)
1099 {
1100 nvlist_t **events = NULL;
1101 uint64_t resid, len, off = 0;
1102 uint_t num = 0;
1103 int error;
1104 time_t tsec;
1105 struct tm t;
1106 char tbuf[30];
1107 char internalstr[MAXPATHLEN];
1108
1109 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
1110 do {
1111 len = SPA_MAXBLOCKSIZE;
1112
1113 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1114 (void) fprintf(stderr, "Unable to read history: "
1115 "error %d\n", error);
1116 umem_free(buf, SPA_MAXBLOCKSIZE);
1117 return;
1118 }
1119
1120 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1121 break;
1122
1123 off -= resid;
1124 } while (len != 0);
1125 umem_free(buf, SPA_MAXBLOCKSIZE);
1126
1127 (void) printf("\nHistory:\n");
1128 for (int i = 0; i < num; i++) {
1129 uint64_t time, txg, ievent;
1130 char *cmd, *intstr;
1131 boolean_t printed = B_FALSE;
1132
1133 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1134 &time) != 0)
1135 goto next;
1136 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1137 &cmd) != 0) {
1138 if (nvlist_lookup_uint64(events[i],
1139 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1140 goto next;
1141 verify(nvlist_lookup_uint64(events[i],
1142 ZPOOL_HIST_TXG, &txg) == 0);
1143 verify(nvlist_lookup_string(events[i],
1144 ZPOOL_HIST_INT_STR, &intstr) == 0);
1145 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1146 goto next;
1147
1148 (void) snprintf(internalstr,
1149 sizeof (internalstr),
1150 "[internal %s txg:%lld] %s",
1151 zfs_history_event_names[ievent], txg,
1152 intstr);
1153 cmd = internalstr;
1154 }
1155 tsec = time;
1156 (void) localtime_r(&tsec, &t);
1157 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1158 (void) printf("%s %s\n", tbuf, cmd);
1159 printed = B_TRUE;
1160
1161 next:
1162 if (dump_opt['h'] > 1) {
1163 if (!printed)
1164 (void) printf("unrecognized record:\n");
1165 dump_nvlist(events[i], 2);
1166 }
1167 }
1168 }
1169
1170 /*ARGSUSED*/
1171 static void
1172 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1173 {
1174 }
1175
1176 static uint64_t
1177 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1178 const zbookmark_phys_t *zb)
1179 {
1180 if (dnp == NULL) {
1181 ASSERT(zb->zb_level < 0);
1182 if (zb->zb_object == 0)
1183 return (zb->zb_blkid);
1184 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1185 }
1186
1187 ASSERT(zb->zb_level >= 0);
1188
1189 return ((zb->zb_blkid <<
1190 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1191 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1192 }
1193
1194 static void
1195 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1196 {
1197 const dva_t *dva = bp->blk_dva;
1198 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1199
1200 if (dump_opt['b'] >= 6) {
1201 snprintf_blkptr(blkbuf, buflen, bp);
1202 return;
1203 }
1204
1205 if (BP_IS_EMBEDDED(bp)) {
1206 (void) sprintf(blkbuf,
1207 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1208 (int)BPE_GET_ETYPE(bp),
1209 (u_longlong_t)BPE_GET_LSIZE(bp),
1210 (u_longlong_t)BPE_GET_PSIZE(bp),
1211 (u_longlong_t)bp->blk_birth);
1212 return;
1213 }
1214
1215 blkbuf[0] = '\0';
1216 for (int i = 0; i < ndvas; i++)
1217 (void) snprintf(blkbuf + strlen(blkbuf),
1218 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1219 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1220 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1221 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1222
1223 if (BP_IS_HOLE(bp)) {
1224 (void) snprintf(blkbuf + strlen(blkbuf),
1225 buflen - strlen(blkbuf),
1226 "%llxL B=%llu",
1227 (u_longlong_t)BP_GET_LSIZE(bp),
1228 (u_longlong_t)bp->blk_birth);
1229 } else {
1230 (void) snprintf(blkbuf + strlen(blkbuf),
1231 buflen - strlen(blkbuf),
1232 "%llxL/%llxP F=%llu B=%llu/%llu",
1233 (u_longlong_t)BP_GET_LSIZE(bp),
1234 (u_longlong_t)BP_GET_PSIZE(bp),
1235 (u_longlong_t)BP_GET_FILL(bp),
1236 (u_longlong_t)bp->blk_birth,
1237 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1238 }
1239 }
1240
1241 static void
1242 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1243 const dnode_phys_t *dnp)
1244 {
1245 char blkbuf[BP_SPRINTF_LEN];
1246 int l;
1247
1248 if (!BP_IS_EMBEDDED(bp)) {
1249 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1250 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1251 }
1252
1253 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1254
1255 ASSERT(zb->zb_level >= 0);
1256
1257 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1258 if (l == zb->zb_level) {
1259 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1260 } else {
1261 (void) printf(" ");
1262 }
1263 }
1264
1265 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1266 (void) printf("%s\n", blkbuf);
1267 }
1268
1269 static int
1270 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1271 blkptr_t *bp, const zbookmark_phys_t *zb)
1272 {
1273 int err = 0;
1274
1275 if (bp->blk_birth == 0)
1276 return (0);
1277
1278 print_indirect(bp, zb, dnp);
1279
1280 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1281 arc_flags_t flags = ARC_FLAG_WAIT;
1282 int i;
1283 blkptr_t *cbp;
1284 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1285 arc_buf_t *buf;
1286 uint64_t fill = 0;
1287
1288 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1289 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1290 if (err)
1291 return (err);
1292 ASSERT(buf->b_data);
1293
1294 /* recursively visit blocks below this */
1295 cbp = buf->b_data;
1296 for (i = 0; i < epb; i++, cbp++) {
1297 zbookmark_phys_t czb;
1298
1299 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1300 zb->zb_level - 1,
1301 zb->zb_blkid * epb + i);
1302 err = visit_indirect(spa, dnp, cbp, &czb);
1303 if (err)
1304 break;
1305 fill += BP_GET_FILL(cbp);
1306 }
1307 if (!err)
1308 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1309 arc_buf_destroy(buf, &buf);
1310 }
1311
1312 return (err);
1313 }
1314
1315 /*ARGSUSED*/
1316 static void
1317 dump_indirect(dnode_t *dn)
1318 {
1319 dnode_phys_t *dnp = dn->dn_phys;
1320 int j;
1321 zbookmark_phys_t czb;
1322
1323 (void) printf("Indirect blocks:\n");
1324
1325 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1326 dn->dn_object, dnp->dn_nlevels - 1, 0);
1327 for (j = 0; j < dnp->dn_nblkptr; j++) {
1328 czb.zb_blkid = j;
1329 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1330 &dnp->dn_blkptr[j], &czb);
1331 }
1332
1333 (void) printf("\n");
1334 }
1335
1336 /*ARGSUSED*/
1337 static void
1338 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1339 {
1340 dsl_dir_phys_t *dd = data;
1341 time_t crtime;
1342 char nice[32];
1343
1344 /* make sure nicenum has enough space */
1345 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ);
1346
1347 if (dd == NULL)
1348 return;
1349
1350 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1351
1352 crtime = dd->dd_creation_time;
1353 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1354 (void) printf("\t\thead_dataset_obj = %llu\n",
1355 (u_longlong_t)dd->dd_head_dataset_obj);
1356 (void) printf("\t\tparent_dir_obj = %llu\n",
1357 (u_longlong_t)dd->dd_parent_obj);
1358 (void) printf("\t\torigin_obj = %llu\n",
1359 (u_longlong_t)dd->dd_origin_obj);
1360 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1361 (u_longlong_t)dd->dd_child_dir_zapobj);
1362 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice));
1363 (void) printf("\t\tused_bytes = %s\n", nice);
1364 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice));
1365 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1366 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice));
1367 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1368 zdb_nicenum(dd->dd_quota, nice, sizeof (nice));
1369 (void) printf("\t\tquota = %s\n", nice);
1370 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice));
1371 (void) printf("\t\treserved = %s\n", nice);
1372 (void) printf("\t\tprops_zapobj = %llu\n",
1373 (u_longlong_t)dd->dd_props_zapobj);
1374 (void) printf("\t\tdeleg_zapobj = %llu\n",
1375 (u_longlong_t)dd->dd_deleg_zapobj);
1376 (void) printf("\t\tflags = %llx\n",
1377 (u_longlong_t)dd->dd_flags);
1378
1379 #define DO(which) \
1380 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \
1381 sizeof (nice)); \
1382 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1383 DO(HEAD);
1384 DO(SNAP);
1385 DO(CHILD);
1386 DO(CHILD_RSRV);
1387 DO(REFRSRV);
1388 #undef DO
1389 }
1390
1391 /*ARGSUSED*/
1392 static void
1393 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1394 {
1395 dsl_dataset_phys_t *ds = data;
1396 time_t crtime;
1397 char used[32], compressed[32], uncompressed[32], unique[32];
1398 char blkbuf[BP_SPRINTF_LEN];
1399
1400 /* make sure nicenum has enough space */
1401 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ);
1402 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ);
1403 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ);
1404 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ);
1405
1406 if (ds == NULL)
1407 return;
1408
1409 ASSERT(size == sizeof (*ds));
1410 crtime = ds->ds_creation_time;
1411 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used));
1412 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed));
1413 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed,
1414 sizeof (uncompressed));
1415 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique));
1416 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1417
1418 (void) printf("\t\tdir_obj = %llu\n",
1419 (u_longlong_t)ds->ds_dir_obj);
1420 (void) printf("\t\tprev_snap_obj = %llu\n",
1421 (u_longlong_t)ds->ds_prev_snap_obj);
1422 (void) printf("\t\tprev_snap_txg = %llu\n",
1423 (u_longlong_t)ds->ds_prev_snap_txg);
1424 (void) printf("\t\tnext_snap_obj = %llu\n",
1425 (u_longlong_t)ds->ds_next_snap_obj);
1426 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1427 (u_longlong_t)ds->ds_snapnames_zapobj);
1428 (void) printf("\t\tnum_children = %llu\n",
1429 (u_longlong_t)ds->ds_num_children);
1430 (void) printf("\t\tuserrefs_obj = %llu\n",
1431 (u_longlong_t)ds->ds_userrefs_obj);
1432 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1433 (void) printf("\t\tcreation_txg = %llu\n",
1434 (u_longlong_t)ds->ds_creation_txg);
1435 (void) printf("\t\tdeadlist_obj = %llu\n",
1436 (u_longlong_t)ds->ds_deadlist_obj);
1437 (void) printf("\t\tused_bytes = %s\n", used);
1438 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1439 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1440 (void) printf("\t\tunique = %s\n", unique);
1441 (void) printf("\t\tfsid_guid = %llu\n",
1442 (u_longlong_t)ds->ds_fsid_guid);
1443 (void) printf("\t\tguid = %llu\n",
1444 (u_longlong_t)ds->ds_guid);
1445 (void) printf("\t\tflags = %llx\n",
1446 (u_longlong_t)ds->ds_flags);
1447 (void) printf("\t\tnext_clones_obj = %llu\n",
1448 (u_longlong_t)ds->ds_next_clones_obj);
1449 (void) printf("\t\tprops_obj = %llu\n",
1450 (u_longlong_t)ds->ds_props_obj);
1451 (void) printf("\t\tbp = %s\n", blkbuf);
1452 }
1453
1454 /* ARGSUSED */
1455 static int
1456 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1457 {
1458 char blkbuf[BP_SPRINTF_LEN];
1459
1460 if (bp->blk_birth != 0) {
1461 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1462 (void) printf("\t%s\n", blkbuf);
1463 }
1464 return (0);
1465 }
1466
1467 static void
1468 dump_bptree(objset_t *os, uint64_t obj, char *name)
1469 {
1470 char bytes[32];
1471 bptree_phys_t *bt;
1472 dmu_buf_t *db;
1473
1474 /* make sure nicenum has enough space */
1475 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1476
1477 if (dump_opt['d'] < 3)
1478 return;
1479
1480 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1481 bt = db->db_data;
1482 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes));
1483 (void) printf("\n %s: %llu datasets, %s\n",
1484 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1485 dmu_buf_rele(db, FTAG);
1486
1487 if (dump_opt['d'] < 5)
1488 return;
1489
1490 (void) printf("\n");
1491
1492 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1493 }
1494
1495 /* ARGSUSED */
1496 static int
1497 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1498 {
1499 char blkbuf[BP_SPRINTF_LEN];
1500
1501 ASSERT(bp->blk_birth != 0);
1502 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1503 (void) printf("\t%s\n", blkbuf);
1504 return (0);
1505 }
1506
1507 static void
1508 dump_full_bpobj(bpobj_t *bpo, char *name, int indent)
1509 {
1510 char bytes[32];
1511 char comp[32];
1512 char uncomp[32];
1513
1514 /* make sure nicenum has enough space */
1515 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1516 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1517 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1518
1519 if (dump_opt['d'] < 3)
1520 return;
1521
1522 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes));
1523 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1524 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp));
1525 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp));
1526 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1527 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1528 indent * 8, name,
1529 (u_longlong_t)bpo->bpo_object,
1530 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1531 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1532 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1533 bytes, comp, uncomp);
1534
1535 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1536 uint64_t subobj;
1537 bpobj_t subbpo;
1538 int error;
1539 VERIFY0(dmu_read(bpo->bpo_os,
1540 bpo->bpo_phys->bpo_subobjs,
1541 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1542 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1543 if (error != 0) {
1544 (void) printf("ERROR %u while trying to open "
1545 "subobj id %llu\n",
1546 error, (u_longlong_t)subobj);
1547 continue;
1548 }
1549 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1550 bpobj_close(&subbpo);
1551 }
1552 } else {
1553 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1554 indent * 8, name,
1555 (u_longlong_t)bpo->bpo_object,
1556 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1557 bytes);
1558 }
1559
1560 if (dump_opt['d'] < 5)
1561 return;
1562
1563
1564 if (indent == 0) {
1565 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1566 (void) printf("\n");
1567 }
1568 }
1569
1570 static void
1571 dump_deadlist(dsl_deadlist_t *dl)
1572 {
1573 dsl_deadlist_entry_t *dle;
1574 uint64_t unused;
1575 char bytes[32];
1576 char comp[32];
1577 char uncomp[32];
1578
1579 /* make sure nicenum has enough space */
1580 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1581 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1582 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1583
1584 if (dump_opt['d'] < 3)
1585 return;
1586
1587 if (dl->dl_oldfmt) {
1588 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1589 return;
1590 }
1591
1592 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes));
1593 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp));
1594 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp));
1595 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1596 bytes, comp, uncomp);
1597
1598 if (dump_opt['d'] < 4)
1599 return;
1600
1601 (void) printf("\n");
1602
1603 /* force the tree to be loaded */
1604 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1605
1606 for (dle = avl_first(&dl->dl_tree); dle;
1607 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1608 if (dump_opt['d'] >= 5) {
1609 char buf[128];
1610 (void) snprintf(buf, sizeof (buf),
1611 "mintxg %llu -> obj %llu",
1612 (longlong_t)dle->dle_mintxg,
1613 (longlong_t)dle->dle_bpobj.bpo_object);
1614
1615 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1616 } else {
1617 (void) printf("mintxg %llu -> obj %llu\n",
1618 (longlong_t)dle->dle_mintxg,
1619 (longlong_t)dle->dle_bpobj.bpo_object);
1620
1621 }
1622 }
1623 }
1624
1625 static avl_tree_t idx_tree;
1626 static avl_tree_t domain_tree;
1627 static boolean_t fuid_table_loaded;
1628 static objset_t *sa_os = NULL;
1629 static sa_attr_type_t *sa_attr_table = NULL;
1630
1631 static int
1632 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1633 {
1634 int err;
1635 uint64_t sa_attrs = 0;
1636 uint64_t version = 0;
1637
1638 VERIFY3P(sa_os, ==, NULL);
1639 err = dmu_objset_own(path, type, B_TRUE, tag, osp);
1640 if (err != 0) {
1641 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1642 strerror(err));
1643 return (err);
1644 }
1645
1646 if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
1647 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1648 8, 1, &version);
1649 if (version >= ZPL_VERSION_SA) {
1650 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1651 8, 1, &sa_attrs);
1652 }
1653 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1654 &sa_attr_table);
1655 if (err != 0) {
1656 (void) fprintf(stderr, "sa_setup failed: %s\n",
1657 strerror(err));
1658 dmu_objset_disown(*osp, tag);
1659 *osp = NULL;
1660 }
1661 }
1662 sa_os = *osp;
1663
1664 return (0);
1665 }
1666
1667 static void
1668 close_objset(objset_t *os, void *tag)
1669 {
1670 VERIFY3P(os, ==, sa_os);
1671 if (os->os_sa != NULL)
1672 sa_tear_down(os);
1673 dmu_objset_disown(os, tag);
1674 sa_attr_table = NULL;
1675 sa_os = NULL;
1676 }
1677
1678 static void
1679 fuid_table_destroy()
1680 {
1681 if (fuid_table_loaded) {
1682 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1683 fuid_table_loaded = B_FALSE;
1684 }
1685 }
1686
1687 /*
1688 * print uid or gid information.
1689 * For normal POSIX id just the id is printed in decimal format.
1690 * For CIFS files with FUID the fuid is printed in hex followed by
1691 * the domain-rid string.
1692 */
1693 static void
1694 print_idstr(uint64_t id, const char *id_type)
1695 {
1696 if (FUID_INDEX(id)) {
1697 char *domain;
1698
1699 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1700 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1701 (u_longlong_t)id, domain, (int)FUID_RID(id));
1702 } else {
1703 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1704 }
1705
1706 }
1707
1708 static void
1709 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1710 {
1711 uint32_t uid_idx, gid_idx;
1712
1713 uid_idx = FUID_INDEX(uid);
1714 gid_idx = FUID_INDEX(gid);
1715
1716 /* Load domain table, if not already loaded */
1717 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1718 uint64_t fuid_obj;
1719
1720 /* first find the fuid object. It lives in the master node */
1721 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1722 8, 1, &fuid_obj) == 0);
1723 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1724 (void) zfs_fuid_table_load(os, fuid_obj,
1725 &idx_tree, &domain_tree);
1726 fuid_table_loaded = B_TRUE;
1727 }
1728
1729 print_idstr(uid, "uid");
1730 print_idstr(gid, "gid");
1731 }
1732
1733 /*ARGSUSED*/
1734 static void
1735 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1736 {
1737 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1738 sa_handle_t *hdl;
1739 uint64_t xattr, rdev, gen;
1740 uint64_t uid, gid, mode, fsize, parent, links;
1741 uint64_t pflags;
1742 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1743 time_t z_crtime, z_atime, z_mtime, z_ctime;
1744 sa_bulk_attr_t bulk[12];
1745 int idx = 0;
1746 int error;
1747
1748 VERIFY3P(os, ==, sa_os);
1749 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1750 (void) printf("Failed to get handle for SA znode\n");
1751 return;
1752 }
1753
1754 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1755 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1756 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1757 &links, 8);
1758 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1759 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1760 &mode, 8);
1761 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1762 NULL, &parent, 8);
1763 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1764 &fsize, 8);
1765 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1766 acctm, 16);
1767 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1768 modtm, 16);
1769 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1770 crtm, 16);
1771 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1772 chgtm, 16);
1773 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1774 &pflags, 8);
1775
1776 if (sa_bulk_lookup(hdl, bulk, idx)) {
1777 (void) sa_handle_destroy(hdl);
1778 return;
1779 }
1780
1781 z_crtime = (time_t)crtm[0];
1782 z_atime = (time_t)acctm[0];
1783 z_mtime = (time_t)modtm[0];
1784 z_ctime = (time_t)chgtm[0];
1785
1786 if (dump_opt['d'] > 4) {
1787 error = zfs_obj_to_path(os, object, path, sizeof (path));
1788 if (error != 0) {
1789 (void) snprintf(path, sizeof (path),
1790 "\?\?\?<object#%llu>", (u_longlong_t)object);
1791 }
1792 (void) printf("\tpath %s\n", path);
1793 }
1794 dump_uidgid(os, uid, gid);
1795 (void) printf("\tatime %s", ctime(&z_atime));
1796 (void) printf("\tmtime %s", ctime(&z_mtime));
1797 (void) printf("\tctime %s", ctime(&z_ctime));
1798 (void) printf("\tcrtime %s", ctime(&z_crtime));
1799 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1800 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1801 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1802 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1803 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1804 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1805 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1806 sizeof (uint64_t)) == 0)
1807 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1808 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1809 sizeof (uint64_t)) == 0)
1810 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1811 sa_handle_destroy(hdl);
1812 }
1813
1814 /*ARGSUSED*/
1815 static void
1816 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1817 {
1818 }
1819
1820 /*ARGSUSED*/
1821 static void
1822 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1823 {
1824 }
1825
1826 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1827 dump_none, /* unallocated */
1828 dump_zap, /* object directory */
1829 dump_uint64, /* object array */
1830 dump_none, /* packed nvlist */
1831 dump_packed_nvlist, /* packed nvlist size */
1832 dump_none, /* bpobj */
1833 dump_bpobj, /* bpobj header */
1834 dump_none, /* SPA space map header */
1835 dump_none, /* SPA space map */
1836 dump_none, /* ZIL intent log */
1837 dump_dnode, /* DMU dnode */
1838 dump_dmu_objset, /* DMU objset */
1839 dump_dsl_dir, /* DSL directory */
1840 dump_zap, /* DSL directory child map */
1841 dump_zap, /* DSL dataset snap map */
1842 dump_zap, /* DSL props */
1843 dump_dsl_dataset, /* DSL dataset */
1844 dump_znode, /* ZFS znode */
1845 dump_acl, /* ZFS V0 ACL */
1846 dump_uint8, /* ZFS plain file */
1847 dump_zpldir, /* ZFS directory */
1848 dump_zap, /* ZFS master node */
1849 dump_zap, /* ZFS delete queue */
1850 dump_uint8, /* zvol object */
1851 dump_zap, /* zvol prop */
1852 dump_uint8, /* other uint8[] */
1853 dump_uint64, /* other uint64[] */
1854 dump_zap, /* other ZAP */
1855 dump_zap, /* persistent error log */
1856 dump_uint8, /* SPA history */
1857 dump_history_offsets, /* SPA history offsets */
1858 dump_zap, /* Pool properties */
1859 dump_zap, /* DSL permissions */
1860 dump_acl, /* ZFS ACL */
1861 dump_uint8, /* ZFS SYSACL */
1862 dump_none, /* FUID nvlist */
1863 dump_packed_nvlist, /* FUID nvlist size */
1864 dump_zap, /* DSL dataset next clones */
1865 dump_zap, /* DSL scrub queue */
1866 dump_zap, /* ZFS user/group used */
1867 dump_zap, /* ZFS user/group quota */
1868 dump_zap, /* snapshot refcount tags */
1869 dump_ddt_zap, /* DDT ZAP object */
1870 dump_zap, /* DDT statistics */
1871 dump_znode, /* SA object */
1872 dump_zap, /* SA Master Node */
1873 dump_sa_attrs, /* SA attribute registration */
1874 dump_sa_layouts, /* SA attribute layouts */
1875 dump_zap, /* DSL scrub translations */
1876 dump_none, /* fake dedup BP */
1877 dump_zap, /* deadlist */
1878 dump_none, /* deadlist hdr */
1879 dump_zap, /* dsl clones */
1880 dump_bpobj_subobjs, /* bpobj subobjs */
1881 dump_unknown, /* Unknown type, must be last */
1882 };
1883
1884 static void
1885 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1886 {
1887 dmu_buf_t *db = NULL;
1888 dmu_object_info_t doi;
1889 dnode_t *dn;
1890 void *bonus = NULL;
1891 size_t bsize = 0;
1892 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1893 char bonus_size[32];
1894 char aux[50];
1895 int error;
1896
1897 /* make sure nicenum has enough space */
1898 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ);
1899 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ);
1900 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
1901 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
1902 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
1903
1904 if (*print_header) {
1905 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1906 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1907 "%full", "type");
1908 *print_header = 0;
1909 }
1910
1911 if (object == 0) {
1912 dn = DMU_META_DNODE(os);
1913 } else {
1914 error = dmu_bonus_hold(os, object, FTAG, &db);
1915 if (error)
1916 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1917 object, error);
1918 bonus = db->db_data;
1919 bsize = db->db_size;
1920 dn = DB_DNODE((dmu_buf_impl_t *)db);
1921 }
1922 dmu_object_info_from_dnode(dn, &doi);
1923
1924 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
1925 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
1926 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
1927 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
1928 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
1929 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1930 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1931 doi.doi_max_offset);
1932
1933 aux[0] = '\0';
1934
1935 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1936 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1937 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1938 }
1939
1940 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1941 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1942 ZDB_COMPRESS_NAME(doi.doi_compress));
1943 }
1944
1945 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1946 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1947 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1948
1949 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1950 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1951 "", "", "", "", "", bonus_size, "bonus",
1952 ZDB_OT_NAME(doi.doi_bonus_type));
1953 }
1954
1955 if (verbosity >= 4) {
1956 (void) printf("\tdnode flags: %s%s%s\n",
1957 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1958 "USED_BYTES " : "",
1959 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1960 "USERUSED_ACCOUNTED " : "",
1961 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1962 "SPILL_BLKPTR" : "");
1963 (void) printf("\tdnode maxblkid: %llu\n",
1964 (longlong_t)dn->dn_phys->dn_maxblkid);
1965
1966 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1967 bonus, bsize);
1968 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1969 *print_header = 1;
1970 }
1971
1972 if (verbosity >= 5)
1973 dump_indirect(dn);
1974
1975 if (verbosity >= 5) {
1976 /*
1977 * Report the list of segments that comprise the object.
1978 */
1979 uint64_t start = 0;
1980 uint64_t end;
1981 uint64_t blkfill = 1;
1982 int minlvl = 1;
1983
1984 if (dn->dn_type == DMU_OT_DNODE) {
1985 minlvl = 0;
1986 blkfill = DNODES_PER_BLOCK;
1987 }
1988
1989 for (;;) {
1990 char segsize[32];
1991 /* make sure nicenum has enough space */
1992 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ);
1993 error = dnode_next_offset(dn,
1994 0, &start, minlvl, blkfill, 0);
1995 if (error)
1996 break;
1997 end = start;
1998 error = dnode_next_offset(dn,
1999 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
2000 zdb_nicenum(end - start, segsize, sizeof (segsize));
2001 (void) printf("\t\tsegment [%016llx, %016llx)"
2002 " size %5s\n", (u_longlong_t)start,
2003 (u_longlong_t)end, segsize);
2004 if (error)
2005 break;
2006 start = end;
2007 }
2008 }
2009
2010 if (db != NULL)
2011 dmu_buf_rele(db, FTAG);
2012 }
2013
2014 static char *objset_types[DMU_OST_NUMTYPES] = {
2015 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
2016
2017 static void
2018 dump_dir(objset_t *os)
2019 {
2020 dmu_objset_stats_t dds;
2021 uint64_t object, object_count;
2022 uint64_t refdbytes, usedobjs, scratch;
2023 char numbuf[32];
2024 char blkbuf[BP_SPRINTF_LEN + 20];
2025 char osname[ZFS_MAX_DATASET_NAME_LEN];
2026 char *type = "UNKNOWN";
2027 int verbosity = dump_opt['d'];
2028 int print_header = 1;
2029 int i, error;
2030
2031 /* make sure nicenum has enough space */
2032 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
2033
2034 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
2035 dmu_objset_fast_stat(os, &dds);
2036 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
2037
2038 if (dds.dds_type < DMU_OST_NUMTYPES)
2039 type = objset_types[dds.dds_type];
2040
2041 if (dds.dds_type == DMU_OST_META) {
2042 dds.dds_creation_txg = TXG_INITIAL;
2043 usedobjs = BP_GET_FILL(os->os_rootbp);
2044 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
2045 dd_used_bytes;
2046 } else {
2047 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
2048 }
2049
2050 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
2051
2052 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf));
2053
2054 if (verbosity >= 4) {
2055 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
2056 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2057 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2058 } else {
2059 blkbuf[0] = '\0';
2060 }
2061
2062 dmu_objset_name(os, osname);
2063
2064 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2065 "%s, %llu objects%s\n",
2066 osname, type, (u_longlong_t)dmu_objset_id(os),
2067 (u_longlong_t)dds.dds_creation_txg,
2068 numbuf, (u_longlong_t)usedobjs, blkbuf);
2069
2070 if (zopt_objects != 0) {
2071 for (i = 0; i < zopt_objects; i++)
2072 dump_object(os, zopt_object[i], verbosity,
2073 &print_header);
2074 (void) printf("\n");
2075 return;
2076 }
2077
2078 if (dump_opt['i'] != 0 || verbosity >= 2)
2079 dump_intent_log(dmu_objset_zil(os));
2080
2081 if (dmu_objset_ds(os) != NULL)
2082 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
2083
2084 if (verbosity < 2)
2085 return;
2086
2087 if (BP_IS_HOLE(os->os_rootbp))
2088 return;
2089
2090 dump_object(os, 0, verbosity, &print_header);
2091 object_count = 0;
2092 if (DMU_USERUSED_DNODE(os) != NULL &&
2093 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2094 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2095 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2096 }
2097
2098 object = 0;
2099 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2100 dump_object(os, object, verbosity, &print_header);
2101 object_count++;
2102 }
2103
2104 ASSERT3U(object_count, ==, usedobjs);
2105
2106 (void) printf("\n");
2107
2108 if (error != ESRCH) {
2109 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2110 abort();
2111 }
2112 }
2113
2114 static void
2115 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2116 {
2117 time_t timestamp = ub->ub_timestamp;
2118
2119 (void) printf(header ? header : "");
2120 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2121 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2122 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2123 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2124 (void) printf("\ttimestamp = %llu UTC = %s",
2125 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2126 if (dump_opt['u'] >= 3) {
2127 char blkbuf[BP_SPRINTF_LEN];
2128 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2129 (void) printf("\trootbp = %s\n", blkbuf);
2130 }
2131 (void) printf(footer ? footer : "");
2132 }
2133
2134 static void
2135 dump_config(spa_t *spa)
2136 {
2137 dmu_buf_t *db;
2138 size_t nvsize = 0;
2139 int error = 0;
2140
2141
2142 error = dmu_bonus_hold(spa->spa_meta_objset,
2143 spa->spa_config_object, FTAG, &db);
2144
2145 if (error == 0) {
2146 nvsize = *(uint64_t *)db->db_data;
2147 dmu_buf_rele(db, FTAG);
2148
2149 (void) printf("\nMOS Configuration:\n");
2150 dump_packed_nvlist(spa->spa_meta_objset,
2151 spa->spa_config_object, (void *)&nvsize, 1);
2152 } else {
2153 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2154 (u_longlong_t)spa->spa_config_object, error);
2155 }
2156 }
2157
2158 static void
2159 dump_cachefile(const char *cachefile)
2160 {
2161 int fd;
2162 struct stat64 statbuf;
2163 char *buf;
2164 nvlist_t *config;
2165
2166 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2167 (void) printf("cannot open '%s': %s\n", cachefile,
2168 strerror(errno));
2169 exit(1);
2170 }
2171
2172 if (fstat64(fd, &statbuf) != 0) {
2173 (void) printf("failed to stat '%s': %s\n", cachefile,
2174 strerror(errno));
2175 exit(1);
2176 }
2177
2178 if ((buf = malloc(statbuf.st_size)) == NULL) {
2179 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2180 (u_longlong_t)statbuf.st_size);
2181 exit(1);
2182 }
2183
2184 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2185 (void) fprintf(stderr, "failed to read %llu bytes\n",
2186 (u_longlong_t)statbuf.st_size);
2187 exit(1);
2188 }
2189
2190 (void) close(fd);
2191
2192 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2193 (void) fprintf(stderr, "failed to unpack nvlist\n");
2194 exit(1);
2195 }
2196
2197 free(buf);
2198
2199 dump_nvlist(config, 0);
2200
2201 nvlist_free(config);
2202 }
2203
2204 #define ZDB_MAX_UB_HEADER_SIZE 32
2205
2206 static void
2207 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2208 {
2209 vdev_t vd;
2210 vdev_t *vdp = &vd;
2211 char header[ZDB_MAX_UB_HEADER_SIZE];
2212
2213 vd.vdev_ashift = ashift;
2214 vdp->vdev_top = vdp;
2215
2216 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2217 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2218 uberblock_t *ub = (void *)((char *)lbl + uoff);
2219
2220 if (uberblock_verify(ub))
2221 continue;
2222 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2223 "Uberblock[%d]\n", i);
2224 dump_uberblock(ub, header, "");
2225 }
2226 }
2227
2228 static char curpath[PATH_MAX];
2229
2230 /*
2231 * Iterate through the path components, recursively passing
2232 * current one's obj and remaining path until we find the obj
2233 * for the last one.
2234 */
2235 static int
2236 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2237 {
2238 int err;
2239 int header = 1;
2240 uint64_t child_obj;
2241 char *s;
2242 dmu_buf_t *db;
2243 dmu_object_info_t doi;
2244
2245 if ((s = strchr(name, '/')) != NULL)
2246 *s = '\0';
2247 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2248
2249 (void) strlcat(curpath, name, sizeof (curpath));
2250
2251 if (err != 0) {
2252 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2253 curpath, strerror(err));
2254 return (err);
2255 }
2256
2257 child_obj = ZFS_DIRENT_OBJ(child_obj);
2258 err = sa_buf_hold(os, child_obj, FTAG, &db);
2259 if (err != 0) {
2260 (void) fprintf(stderr,
2261 "failed to get SA dbuf for obj %llu: %s\n",
2262 (u_longlong_t)child_obj, strerror(err));
2263 return (EINVAL);
2264 }
2265 dmu_object_info_from_db(db, &doi);
2266 sa_buf_rele(db, FTAG);
2267
2268 if (doi.doi_bonus_type != DMU_OT_SA &&
2269 doi.doi_bonus_type != DMU_OT_ZNODE) {
2270 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2271 doi.doi_bonus_type, (u_longlong_t)child_obj);
2272 return (EINVAL);
2273 }
2274
2275 if (dump_opt['v'] > 6) {
2276 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2277 (u_longlong_t)child_obj, curpath, doi.doi_type,
2278 doi.doi_bonus_type);
2279 }
2280
2281 (void) strlcat(curpath, "/", sizeof (curpath));
2282
2283 switch (doi.doi_type) {
2284 case DMU_OT_DIRECTORY_CONTENTS:
2285 if (s != NULL && *(s + 1) != '\0')
2286 return (dump_path_impl(os, child_obj, s + 1));
2287 /*FALLTHROUGH*/
2288 case DMU_OT_PLAIN_FILE_CONTENTS:
2289 dump_object(os, child_obj, dump_opt['v'], &header);
2290 return (0);
2291 default:
2292 (void) fprintf(stderr, "object %llu has non-file/directory "
2293 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2294 break;
2295 }
2296
2297 return (EINVAL);
2298 }
2299
2300 /*
2301 * Dump the blocks for the object specified by path inside the dataset.
2302 */
2303 static int
2304 dump_path(char *ds, char *path)
2305 {
2306 int err;
2307 objset_t *os;
2308 uint64_t root_obj;
2309
2310 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2311 if (err != 0)
2312 return (err);
2313
2314 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2315 if (err != 0) {
2316 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2317 strerror(err));
2318 dmu_objset_disown(os, FTAG);
2319 return (EINVAL);
2320 }
2321
2322 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2323
2324 err = dump_path_impl(os, root_obj, path);
2325
2326 close_objset(os, FTAG);
2327 return (err);
2328 }
2329
2330 static int
2331 dump_label(const char *dev)
2332 {
2333 int fd;
2334 vdev_label_t label;
2335 char path[MAXPATHLEN];
2336 char *buf = label.vl_vdev_phys.vp_nvlist;
2337 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2338 struct stat64 statbuf;
2339 uint64_t psize, ashift;
2340 boolean_t label_found = B_FALSE;
2341
2342 (void) strlcpy(path, dev, sizeof (path));
2343 if (dev[0] == '/') {
2344 if (strncmp(dev, ZFS_DISK_ROOTD,
2345 strlen(ZFS_DISK_ROOTD)) == 0) {
2346 (void) snprintf(path, sizeof (path), "%s%s",
2347 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD));
2348 }
2349 } else if (stat64(path, &statbuf) != 0) {
2350 char *s;
2351
2352 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD,
2353 dev);
2354 if (((s = strrchr(dev, 's')) == NULL &&
2355 (s = strchr(dev, 'p')) == NULL) ||
2356 !isdigit(*(s + 1)))
2357 (void) strlcat(path, "s0", sizeof (path));
2358 }
2359
2360 if ((fd = open64(path, O_RDONLY)) < 0) {
2361 (void) fprintf(stderr, "cannot open '%s': %s\n", path,
2362 strerror(errno));
2363 exit(1);
2364 }
2365
2366 if (fstat64(fd, &statbuf) != 0) {
2367 (void) fprintf(stderr, "failed to stat '%s': %s\n", path,
2368 strerror(errno));
2369 (void) close(fd);
2370 exit(1);
2371 }
2372
2373 if (S_ISBLK(statbuf.st_mode)) {
2374 (void) fprintf(stderr,
2375 "cannot use '%s': character device required\n", path);
2376 (void) close(fd);
2377 exit(1);
2378 }
2379
2380 psize = statbuf.st_size;
2381 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2382
2383 for (int l = 0; l < VDEV_LABELS; l++) {
2384 nvlist_t *config = NULL;
2385
2386 if (!dump_opt['q']) {
2387 (void) printf("------------------------------------\n");
2388 (void) printf("LABEL %d\n", l);
2389 (void) printf("------------------------------------\n");
2390 }
2391
2392 if (pread64(fd, &label, sizeof (label),
2393 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2394 if (!dump_opt['q'])
2395 (void) printf("failed to read label %d\n", l);
2396 continue;
2397 }
2398
2399 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2400 if (!dump_opt['q'])
2401 (void) printf("failed to unpack label %d\n", l);
2402 ashift = SPA_MINBLOCKSHIFT;
2403 } else {
2404 nvlist_t *vdev_tree = NULL;
2405
2406 if (!dump_opt['q'])
2407 dump_nvlist(config, 4);
2408 if ((nvlist_lookup_nvlist(config,
2409 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2410 (nvlist_lookup_uint64(vdev_tree,
2411 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2412 ashift = SPA_MINBLOCKSHIFT;
2413 nvlist_free(config);
2414 label_found = B_TRUE;
2415 }
2416 if (dump_opt['u'])
2417 dump_label_uberblocks(&label, ashift);
2418 }
2419
2420 (void) close(fd);
2421
2422 return (label_found ? 0 : 2);
2423 }
2424
2425 static uint64_t dataset_feature_count[SPA_FEATURES];
2426
2427 /*ARGSUSED*/
2428 static int
2429 dump_one_dir(const char *dsname, void *arg)
2430 {
2431 int error;
2432 objset_t *os;
2433
2434 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
2435 if (error != 0)
2436 return (0);
2437
2438 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2439 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2440 continue;
2441 ASSERT(spa_feature_table[f].fi_flags &
2442 ZFEATURE_FLAG_PER_DATASET);
2443 dataset_feature_count[f]++;
2444 }
2445
2446 dump_dir(os);
2447 close_objset(os, FTAG);
2448 fuid_table_destroy();
2449 return (0);
2450 }
2451
2452 /*
2453 * Block statistics.
2454 */
2455 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2456 typedef struct zdb_blkstats {
2457 uint64_t zb_asize;
2458 uint64_t zb_lsize;
2459 uint64_t zb_psize;
2460 uint64_t zb_count;
2461 uint64_t zb_gangs;
2462 uint64_t zb_ditto_samevdev;
2463 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2464 } zdb_blkstats_t;
2465
2466 /*
2467 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2468 */
2469 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2470 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2471 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2472 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2473
2474 static char *zdb_ot_extname[] = {
2475 "deferred free",
2476 "dedup ditto",
2477 "other",
2478 "Total",
2479 };
2480
2481 #define ZB_TOTAL DN_MAX_LEVELS
2482
2483 typedef struct zdb_cb {
2484 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2485 uint64_t zcb_dedup_asize;
2486 uint64_t zcb_dedup_blocks;
2487 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2488 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2489 [BPE_PAYLOAD_SIZE];
2490 uint64_t zcb_start;
2491 uint64_t zcb_lastprint;
2492 uint64_t zcb_totalasize;
2493 uint64_t zcb_errors[256];
2494 int zcb_readfails;
2495 int zcb_haderrors;
2496 spa_t *zcb_spa;
2497 } zdb_cb_t;
2498
2499 static void
2500 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2501 dmu_object_type_t type)
2502 {
2503 uint64_t refcnt = 0;
2504
2505 ASSERT(type < ZDB_OT_TOTAL);
2506
2507 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2508 return;
2509
2510 for (int i = 0; i < 4; i++) {
2511 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2512 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2513 int equal;
2514 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2515
2516 zb->zb_asize += BP_GET_ASIZE(bp);
2517 zb->zb_lsize += BP_GET_LSIZE(bp);
2518 zb->zb_psize += BP_GET_PSIZE(bp);
2519 zb->zb_count++;
2520
2521 /*
2522 * The histogram is only big enough to record blocks up to
2523 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2524 * "other", bucket.
2525 */
2526 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2527 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2528 zb->zb_psize_histogram[idx]++;
2529
2530 zb->zb_gangs += BP_COUNT_GANG(bp);
2531
2532 switch (BP_GET_NDVAS(bp)) {
2533 case 2:
2534 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2535 DVA_GET_VDEV(&bp->blk_dva[1]))
2536 zb->zb_ditto_samevdev++;
2537 break;
2538 case 3:
2539 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2540 DVA_GET_VDEV(&bp->blk_dva[1])) +
2541 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2542 DVA_GET_VDEV(&bp->blk_dva[2])) +
2543 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2544 DVA_GET_VDEV(&bp->blk_dva[2]));
2545 if (equal != 0)
2546 zb->zb_ditto_samevdev++;
2547 break;
2548 }
2549
2550 }
2551
2552 if (BP_IS_EMBEDDED(bp)) {
2553 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2554 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2555 [BPE_GET_PSIZE(bp)]++;
2556 return;
2557 }
2558
2559 if (dump_opt['L'])
2560 return;
2561
2562 if (BP_GET_DEDUP(bp)) {
2563 ddt_t *ddt;
2564 ddt_entry_t *dde;
2565
2566 ddt = ddt_select(zcb->zcb_spa, bp);
2567 ddt_enter(ddt);
2568 dde = ddt_lookup(ddt, bp, B_FALSE);
2569
2570 if (dde == NULL) {
2571 refcnt = 0;
2572 } else {
2573 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2574 ddt_phys_decref(ddp);
2575 refcnt = ddp->ddp_refcnt;
2576 if (ddt_phys_total_refcnt(dde) == 0)
2577 ddt_remove(ddt, dde);
2578 }
2579 ddt_exit(ddt);
2580 }
2581
2582 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2583 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2584 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2585 }
2586
2587 static void
2588 zdb_blkptr_done(zio_t *zio)
2589 {
2590 spa_t *spa = zio->io_spa;
2591 blkptr_t *bp = zio->io_bp;
2592 int ioerr = zio->io_error;
2593 zdb_cb_t *zcb = zio->io_private;
2594 zbookmark_phys_t *zb = &zio->io_bookmark;
2595
2596 abd_free(zio->io_abd);
2597
2598 mutex_enter(&spa->spa_scrub_lock);
2599 spa->spa_scrub_inflight--;
2600 cv_broadcast(&spa->spa_scrub_io_cv);
2601
2602 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2603 char blkbuf[BP_SPRINTF_LEN];
2604
2605 zcb->zcb_haderrors = 1;
2606 zcb->zcb_errors[ioerr]++;
2607
2608 if (dump_opt['b'] >= 2)
2609 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2610 else
2611 blkbuf[0] = '\0';
2612
2613 (void) printf("zdb_blkptr_cb: "
2614 "Got error %d reading "
2615 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2616 ioerr,
2617 (u_longlong_t)zb->zb_objset,
2618 (u_longlong_t)zb->zb_object,
2619 (u_longlong_t)zb->zb_level,
2620 (u_longlong_t)zb->zb_blkid,
2621 blkbuf);
2622 }
2623 mutex_exit(&spa->spa_scrub_lock);
2624 }
2625
2626 static int
2627 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2628 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2629 {
2630 zdb_cb_t *zcb = arg;
2631 dmu_object_type_t type;
2632 boolean_t is_metadata;
2633
2634 if (bp == NULL)
2635 return (0);
2636
2637 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2638 char blkbuf[BP_SPRINTF_LEN];
2639 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2640 (void) printf("objset %llu object %llu "
2641 "level %lld offset 0x%llx %s\n",
2642 (u_longlong_t)zb->zb_objset,
2643 (u_longlong_t)zb->zb_object,
2644 (longlong_t)zb->zb_level,
2645 (u_longlong_t)blkid2offset(dnp, bp, zb),
2646 blkbuf);
2647 }
2648
2649 if (BP_IS_HOLE(bp))
2650 return (0);
2651
2652 type = BP_GET_TYPE(bp);
2653
2654 zdb_count_block(zcb, zilog, bp,
2655 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2656
2657 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2658
2659 if (!BP_IS_EMBEDDED(bp) &&
2660 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2661 size_t size = BP_GET_PSIZE(bp);
2662 abd_t *abd = abd_alloc(size, B_FALSE);
2663 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2664
2665 /* If it's an intent log block, failure is expected. */
2666 if (zb->zb_level == ZB_ZIL_LEVEL)
2667 flags |= ZIO_FLAG_SPECULATIVE;
2668
2669 mutex_enter(&spa->spa_scrub_lock);
2670 while (spa->spa_scrub_inflight > max_inflight)
2671 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2672 spa->spa_scrub_inflight++;
2673 mutex_exit(&spa->spa_scrub_lock);
2674
2675 zio_nowait(zio_read(NULL, spa, bp, abd, size,
2676 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2677 }
2678
2679 zcb->zcb_readfails = 0;
2680
2681 /* only call gethrtime() every 100 blocks */
2682 static int iters;
2683 if (++iters > 100)
2684 iters = 0;
2685 else
2686 return (0);
2687
2688 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2689 uint64_t now = gethrtime();
2690 char buf[10];
2691 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2692 int kb_per_sec =
2693 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2694 int sec_remaining =
2695 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2696
2697 /* make sure nicenum has enough space */
2698 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ);
2699
2700 zfs_nicenum(bytes, buf, sizeof (buf));
2701 (void) fprintf(stderr,
2702 "\r%5s completed (%4dMB/s) "
2703 "estimated time remaining: %uhr %02umin %02usec ",
2704 buf, kb_per_sec / 1024,
2705 sec_remaining / 60 / 60,
2706 sec_remaining / 60 % 60,
2707 sec_remaining % 60);
2708
2709 zcb->zcb_lastprint = now;
2710 }
2711
2712 return (0);
2713 }
2714
2715 static void
2716 zdb_leak(void *arg, uint64_t start, uint64_t size)
2717 {
2718 vdev_t *vd = arg;
2719
2720 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2721 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2722 }
2723
2724 static metaslab_ops_t zdb_metaslab_ops = {
2725 NULL /* alloc */
2726 };
2727
2728 static void
2729 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2730 {
2731 ddt_bookmark_t ddb = { 0 };
2732 ddt_entry_t dde;
2733 int error;
2734
2735 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2736 blkptr_t blk;
2737 ddt_phys_t *ddp = dde.dde_phys;
2738
2739 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2740 return;
2741
2742 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2743
2744 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2745 if (ddp->ddp_phys_birth == 0)
2746 continue;
2747 ddt_bp_create(ddb.ddb_checksum,
2748 &dde.dde_key, ddp, &blk);
2749 if (p == DDT_PHYS_DITTO) {
2750 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2751 } else {
2752 zcb->zcb_dedup_asize +=
2753 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2754 zcb->zcb_dedup_blocks++;
2755 }
2756 }
2757 if (!dump_opt['L']) {
2758 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2759 ddt_enter(ddt);
2760 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2761 ddt_exit(ddt);
2762 }
2763 }
2764
2765 ASSERT(error == ENOENT);
2766 }
2767
2768 static void
2769 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2770 {
2771 zcb->zcb_spa = spa;
2772
2773 if (!dump_opt['L']) {
2774 vdev_t *rvd = spa->spa_root_vdev;
2775
2776 /*
2777 * We are going to be changing the meaning of the metaslab's
2778 * ms_tree. Ensure that the allocator doesn't try to
2779 * use the tree.
2780 */
2781 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
2782 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
2783
2784 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
2785 vdev_t *vd = rvd->vdev_child[c];
2786 metaslab_group_t *mg = vd->vdev_mg;
2787 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
2788 metaslab_t *msp = vd->vdev_ms[m];
2789 ASSERT3P(msp->ms_group, ==, mg);
2790 mutex_enter(&msp->ms_lock);
2791 metaslab_unload(msp);
2792
2793 /*
2794 * For leak detection, we overload the metaslab
2795 * ms_tree to contain allocated segments
2796 * instead of free segments. As a result,
2797 * we can't use the normal metaslab_load/unload
2798 * interfaces.
2799 */
2800 if (msp->ms_sm != NULL) {
2801 (void) fprintf(stderr,
2802 "\rloading space map for "
2803 "vdev %llu of %llu, "
2804 "metaslab %llu of %llu ...",
2805 (longlong_t)c,
2806 (longlong_t)rvd->vdev_children,
2807 (longlong_t)m,
2808 (longlong_t)vd->vdev_ms_count);
2809
2810 /*
2811 * We don't want to spend the CPU
2812 * manipulating the size-ordered
2813 * tree, so clear the range_tree
2814 * ops.
2815 */
2816 msp->ms_tree->rt_ops = NULL;
2817 VERIFY0(space_map_load(msp->ms_sm,
2818 msp->ms_tree, SM_ALLOC));
2819
2820 if (!msp->ms_loaded) {
2821 msp->ms_loaded = B_TRUE;
2822 }
2823 }
2824 mutex_exit(&msp->ms_lock);
2825 }
2826 }
2827 (void) fprintf(stderr, "\n");
2828 }
2829
2830 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2831
2832 zdb_ddt_leak_init(spa, zcb);
2833
2834 spa_config_exit(spa, SCL_CONFIG, FTAG);
2835 }
2836
2837 static void
2838 zdb_leak_fini(spa_t *spa)
2839 {
2840 if (!dump_opt['L']) {
2841 vdev_t *rvd = spa->spa_root_vdev;
2842 for (int c = 0; c < rvd->vdev_children; c++) {
2843 vdev_t *vd = rvd->vdev_child[c];
2844 metaslab_group_t *mg = vd->vdev_mg;
2845 for (int m = 0; m < vd->vdev_ms_count; m++) {
2846 metaslab_t *msp = vd->vdev_ms[m];
2847 ASSERT3P(mg, ==, msp->ms_group);
2848 mutex_enter(&msp->ms_lock);
2849
2850 /*
2851 * The ms_tree has been overloaded to
2852 * contain allocated segments. Now that we
2853 * finished traversing all blocks, any
2854 * block that remains in the ms_tree
2855 * represents an allocated block that we
2856 * did not claim during the traversal.
2857 * Claimed blocks would have been removed
2858 * from the ms_tree.
2859 */
2860 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2861
2862 if (msp->ms_loaded) {
2863 msp->ms_loaded = B_FALSE;
2864 }
2865
2866 mutex_exit(&msp->ms_lock);
2867 }
2868 }
2869 }
2870 }
2871
2872 /* ARGSUSED */
2873 static int
2874 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2875 {
2876 zdb_cb_t *zcb = arg;
2877
2878 if (dump_opt['b'] >= 5) {
2879 char blkbuf[BP_SPRINTF_LEN];
2880 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2881 (void) printf("[%s] %s\n",
2882 "deferred free", blkbuf);
2883 }
2884 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2885 return (0);
2886 }
2887
2888 static int
2889 dump_block_stats(spa_t *spa)
2890 {
2891 zdb_cb_t zcb = { 0 };
2892 zdb_blkstats_t *zb, *tzb;
2893 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2894 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2895 boolean_t leaks = B_FALSE;
2896
2897 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2898 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2899 (dump_opt['c'] == 1) ? "metadata " : "",
2900 dump_opt['c'] ? "checksums " : "",
2901 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2902 !dump_opt['L'] ? "nothing leaked " : "");
2903
2904 /*
2905 * Load all space maps as SM_ALLOC maps, then traverse the pool
2906 * claiming each block we discover. If the pool is perfectly
2907 * consistent, the space maps will be empty when we're done.
2908 * Anything left over is a leak; any block we can't claim (because
2909 * it's not part of any space map) is a double allocation,
2910 * reference to a freed block, or an unclaimed log block.
2911 */
2912 zdb_leak_init(spa, &zcb);
2913
2914 /*
2915 * If there's a deferred-free bplist, process that first.
2916 */
2917 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2918 count_block_cb, &zcb, NULL);
2919 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2920 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2921 count_block_cb, &zcb, NULL);
2922 }
2923 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2924 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2925 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2926 &zcb, NULL));
2927 }
2928
2929 if (dump_opt['c'] > 1)
2930 flags |= TRAVERSE_PREFETCH_DATA;
2931
2932 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2933 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2934 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2935
2936 /*
2937 * If we've traversed the data blocks then we need to wait for those
2938 * I/Os to complete. We leverage "The Godfather" zio to wait on
2939 * all async I/Os to complete.
2940 */
2941 if (dump_opt['c']) {
2942 for (int i = 0; i < max_ncpus; i++) {
2943 (void) zio_wait(spa->spa_async_zio_root[i]);
2944 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
2945 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2946 ZIO_FLAG_GODFATHER);
2947 }
2948 }
2949
2950 if (zcb.zcb_haderrors) {
2951 (void) printf("\nError counts:\n\n");
2952 (void) printf("\t%5s %s\n", "errno", "count");
2953 for (int e = 0; e < 256; e++) {
2954 if (zcb.zcb_errors[e] != 0) {
2955 (void) printf("\t%5d %llu\n",
2956 e, (u_longlong_t)zcb.zcb_errors[e]);
2957 }
2958 }
2959 }
2960
2961 /*
2962 * Report any leaked segments.
2963 */
2964 zdb_leak_fini(spa);
2965
2966 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2967
2968 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2969 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2970
2971 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2972 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2973
2974 if (total_found == total_alloc) {
2975 if (!dump_opt['L'])
2976 (void) printf("\n\tNo leaks (block sum matches space"
2977 " maps exactly)\n");
2978 } else {
2979 (void) printf("block traversal size %llu != alloc %llu "
2980 "(%s %lld)\n",
2981 (u_longlong_t)total_found,
2982 (u_longlong_t)total_alloc,
2983 (dump_opt['L']) ? "unreachable" : "leaked",
2984 (longlong_t)(total_alloc - total_found));
2985 leaks = B_TRUE;
2986 }
2987
2988 if (tzb->zb_count == 0)
2989 return (2);
2990
2991 (void) printf("\n");
2992 (void) printf("\tbp count: %10llu\n",
2993 (u_longlong_t)tzb->zb_count);
2994 (void) printf("\tganged count: %10llu\n",
2995 (longlong_t)tzb->zb_gangs);
2996 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2997 (u_longlong_t)tzb->zb_lsize,
2998 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2999 (void) printf("\tbp physical: %10llu avg:"
3000 " %6llu compression: %6.2f\n",
3001 (u_longlong_t)tzb->zb_psize,
3002 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
3003 (double)tzb->zb_lsize / tzb->zb_psize);
3004 (void) printf("\tbp allocated: %10llu avg:"
3005 " %6llu compression: %6.2f\n",
3006 (u_longlong_t)tzb->zb_asize,
3007 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
3008 (double)tzb->zb_lsize / tzb->zb_asize);
3009 (void) printf("\tbp deduped: %10llu ref>1:"
3010 " %6llu deduplication: %6.2f\n",
3011 (u_longlong_t)zcb.zcb_dedup_asize,
3012 (u_longlong_t)zcb.zcb_dedup_blocks,
3013 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
3014 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
3015 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
3016
3017 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
3018 if (zcb.zcb_embedded_blocks[i] == 0)
3019 continue;
3020 (void) printf("\n");
3021 (void) printf("\tadditional, non-pointer bps of type %u: "
3022 "%10llu\n",
3023 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
3024
3025 if (dump_opt['b'] >= 3) {
3026 (void) printf("\t number of (compressed) bytes: "
3027 "number of bps\n");
3028 dump_histogram(zcb.zcb_embedded_histogram[i],
3029 sizeof (zcb.zcb_embedded_histogram[i]) /
3030 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
3031 }
3032 }
3033
3034 if (tzb->zb_ditto_samevdev != 0) {
3035 (void) printf("\tDittoed blocks on same vdev: %llu\n",
3036 (longlong_t)tzb->zb_ditto_samevdev);
3037 }
3038
3039 if (dump_opt['b'] >= 2) {
3040 int l, t, level;
3041 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
3042 "\t avg\t comp\t%%Total\tType\n");
3043
3044 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
3045 char csize[32], lsize[32], psize[32], asize[32];
3046 char avg[32], gang[32];
3047 char *typename;
3048
3049 /* make sure nicenum has enough space */
3050 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ);
3051 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
3052 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ);
3053 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
3054 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ);
3055 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ);
3056
3057 if (t < DMU_OT_NUMTYPES)
3058 typename = dmu_ot[t].ot_name;
3059 else
3060 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
3061
3062 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
3063 (void) printf("%6s\t%5s\t%5s\t%5s"
3064 "\t%5s\t%5s\t%6s\t%s\n",
3065 "-",
3066 "-",
3067 "-",
3068 "-",
3069 "-",
3070 "-",
3071 "-",
3072 typename);
3073 continue;
3074 }
3075
3076 for (l = ZB_TOTAL - 1; l >= -1; l--) {
3077 level = (l == -1 ? ZB_TOTAL : l);
3078 zb = &zcb.zcb_type[level][t];
3079
3080 if (zb->zb_asize == 0)
3081 continue;
3082
3083 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
3084 continue;
3085
3086 if (level == 0 && zb->zb_asize ==
3087 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
3088 continue;
3089
3090 zdb_nicenum(zb->zb_count, csize,
3091 sizeof (csize));
3092 zdb_nicenum(zb->zb_lsize, lsize,
3093 sizeof (lsize));
3094 zdb_nicenum(zb->zb_psize, psize,
3095 sizeof (psize));
3096 zdb_nicenum(zb->zb_asize, asize,
3097 sizeof (asize));
3098 zdb_nicenum(zb->zb_asize / zb->zb_count, avg,
3099 sizeof (avg));
3100 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang));
3101
3102 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
3103 "\t%5.2f\t%6.2f\t",
3104 csize, lsize, psize, asize, avg,
3105 (double)zb->zb_lsize / zb->zb_psize,
3106 100.0 * zb->zb_asize / tzb->zb_asize);
3107
3108 if (level == ZB_TOTAL)
3109 (void) printf("%s\n", typename);
3110 else
3111 (void) printf(" L%d %s\n",
3112 level, typename);
3113
3114 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
3115 (void) printf("\t number of ganged "
3116 "blocks: %s\n", gang);
3117 }
3118
3119 if (dump_opt['b'] >= 4) {
3120 (void) printf("psize "
3121 "(in 512-byte sectors): "
3122 "number of blocks\n");
3123 dump_histogram(zb->zb_psize_histogram,
3124 PSIZE_HISTO_SIZE, 0);
3125 }
3126 }
3127 }
3128 }
3129
3130 (void) printf("\n");
3131
3132 if (leaks)
3133 return (2);
3134
3135 if (zcb.zcb_haderrors)
3136 return (3);
3137
3138 return (0);
3139 }
3140
3141 typedef struct zdb_ddt_entry {
3142 ddt_key_t zdde_key;
3143 uint64_t zdde_ref_blocks;
3144 uint64_t zdde_ref_lsize;
3145 uint64_t zdde_ref_psize;
3146 uint64_t zdde_ref_dsize;
3147 avl_node_t zdde_node;
3148 } zdb_ddt_entry_t;
3149
3150 /* ARGSUSED */
3151 static int
3152 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3153 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3154 {
3155 avl_tree_t *t = arg;
3156 avl_index_t where;
3157 zdb_ddt_entry_t *zdde, zdde_search;
3158
3159 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
3160 return (0);
3161
3162 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
3163 (void) printf("traversing objset %llu, %llu objects, "
3164 "%lu blocks so far\n",
3165 (u_longlong_t)zb->zb_objset,
3166 (u_longlong_t)BP_GET_FILL(bp),
3167 avl_numnodes(t));
3168 }
3169
3170 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
3171 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
3172 return (0);
3173
3174 ddt_key_fill(&zdde_search.zdde_key, bp);
3175
3176 zdde = avl_find(t, &zdde_search, &where);
3177
3178 if (zdde == NULL) {
3179 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
3180 zdde->zdde_key = zdde_search.zdde_key;
3181 avl_insert(t, zdde, where);
3182 }
3183
3184 zdde->zdde_ref_blocks += 1;
3185 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
3186 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
3187 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
3188
3189 return (0);
3190 }
3191
3192 static void
3193 dump_simulated_ddt(spa_t *spa)
3194 {
3195 avl_tree_t t;
3196 void *cookie = NULL;
3197 zdb_ddt_entry_t *zdde;
3198 ddt_histogram_t ddh_total = { 0 };
3199 ddt_stat_t dds_total = { 0 };
3200
3201 avl_create(&t, ddt_entry_compare,
3202 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
3203
3204 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3205
3206 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
3207 zdb_ddt_add_cb, &t);
3208
3209 spa_config_exit(spa, SCL_CONFIG, FTAG);
3210
3211 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
3212 ddt_stat_t dds;
3213 uint64_t refcnt = zdde->zdde_ref_blocks;
3214 ASSERT(refcnt != 0);
3215
3216 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
3217 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
3218 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
3219 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
3220
3221 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
3222 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
3223 dds.dds_ref_psize = zdde->zdde_ref_psize;
3224 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3225
3226 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3227 &dds, 0);
3228
3229 umem_free(zdde, sizeof (*zdde));
3230 }
3231
3232 avl_destroy(&t);
3233
3234 ddt_histogram_stat(&dds_total, &ddh_total);
3235
3236 (void) printf("Simulated DDT histogram:\n");
3237
3238 zpool_dump_ddt(&dds_total, &ddh_total);
3239
3240 dump_dedup_ratio(&dds_total);
3241 }
3242
3243 static void
3244 dump_zpool(spa_t *spa)
3245 {
3246 dsl_pool_t *dp = spa_get_dsl(spa);
3247 int rc = 0;
3248
3249 if (dump_opt['S']) {
3250 dump_simulated_ddt(spa);
3251 return;
3252 }
3253
3254 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3255 (void) printf("\nCached configuration:\n");
3256 dump_nvlist(spa->spa_config, 8);
3257 }
3258
3259 if (dump_opt['C'])
3260 dump_config(spa);
3261
3262 if (dump_opt['u'])
3263 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3264
3265 if (dump_opt['D'])
3266 dump_all_ddts(spa);
3267
3268 if (dump_opt['d'] > 2 || dump_opt['m'])
3269 dump_metaslabs(spa);
3270 if (dump_opt['M'])
3271 dump_metaslab_groups(spa);
3272
3273 if (dump_opt['d'] || dump_opt['i']) {
3274 dump_dir(dp->dp_meta_objset);
3275 if (dump_opt['d'] >= 3) {
3276 dump_full_bpobj(&spa->spa_deferred_bpobj,
3277 "Deferred frees", 0);
3278 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3279 dump_full_bpobj(
3280 &spa->spa_dsl_pool->dp_free_bpobj,
3281 "Pool snapshot frees", 0);
3282 }
3283
3284 if (spa_feature_is_active(spa,
3285 SPA_FEATURE_ASYNC_DESTROY)) {
3286 dump_bptree(spa->spa_meta_objset,
3287 spa->spa_dsl_pool->dp_bptree_obj,
3288 "Pool dataset frees");
3289 }
3290 dump_dtl(spa->spa_root_vdev, 0);
3291 }
3292 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3293 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3294
3295 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
3296 uint64_t refcount;
3297
3298 if (!(spa_feature_table[f].fi_flags &
3299 ZFEATURE_FLAG_PER_DATASET) ||
3300 !spa_feature_is_enabled(spa, f)) {
3301 ASSERT0(dataset_feature_count[f]);
3302 continue;
3303 }
3304 (void) feature_get_refcount(spa,
3305 &spa_feature_table[f], &refcount);
3306 if (dataset_feature_count[f] != refcount) {
3307 (void) printf("%s feature refcount mismatch: "
3308 "%lld datasets != %lld refcount\n",
3309 spa_feature_table[f].fi_uname,
3310 (longlong_t)dataset_feature_count[f],
3311 (longlong_t)refcount);
3312 rc = 2;
3313 } else {
3314 (void) printf("Verified %s feature refcount "
3315 "of %llu is correct\n",
3316 spa_feature_table[f].fi_uname,
3317 (longlong_t)refcount);
3318 }
3319 }
3320 }
3321 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3322 rc = dump_block_stats(spa);
3323
3324 if (rc == 0)
3325 rc = verify_spacemap_refcounts(spa);
3326
3327 if (dump_opt['s'])
3328 show_pool_stats(spa);
3329
3330 if (dump_opt['h'])
3331 dump_history(spa);
3332
3333 if (rc != 0) {
3334 dump_debug_buffer();
3335 exit(rc);
3336 }
3337 }
3338
3339 #define ZDB_FLAG_CHECKSUM 0x0001
3340 #define ZDB_FLAG_DECOMPRESS 0x0002
3341 #define ZDB_FLAG_BSWAP 0x0004
3342 #define ZDB_FLAG_GBH 0x0008
3343 #define ZDB_FLAG_INDIRECT 0x0010
3344 #define ZDB_FLAG_PHYS 0x0020
3345 #define ZDB_FLAG_RAW 0x0040
3346 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3347
3348 int flagbits[256];
3349
3350 static void
3351 zdb_print_blkptr(blkptr_t *bp, int flags)
3352 {
3353 char blkbuf[BP_SPRINTF_LEN];
3354
3355 if (flags & ZDB_FLAG_BSWAP)
3356 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3357
3358 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3359 (void) printf("%s\n", blkbuf);
3360 }
3361
3362 static void
3363 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3364 {
3365 int i;
3366
3367 for (i = 0; i < nbps; i++)
3368 zdb_print_blkptr(&bp[i], flags);
3369 }
3370
3371 static void
3372 zdb_dump_gbh(void *buf, int flags)
3373 {
3374 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3375 }
3376
3377 static void
3378 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3379 {
3380 if (flags & ZDB_FLAG_BSWAP)
3381 byteswap_uint64_array(buf, size);
3382 (void) write(1, buf, size);
3383 }
3384
3385 static void
3386 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3387 {
3388 uint64_t *d = (uint64_t *)buf;
3389 int nwords = size / sizeof (uint64_t);
3390 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3391 int i, j;
3392 char *hdr, *c;
3393
3394
3395 if (do_bswap)
3396 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3397 else
3398 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3399
3400 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3401
3402 for (i = 0; i < nwords; i += 2) {
3403 (void) printf("%06llx: %016llx %016llx ",
3404 (u_longlong_t)(i * sizeof (uint64_t)),
3405 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3406 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3407
3408 c = (char *)&d[i];
3409 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3410 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3411 (void) printf("\n");
3412 }
3413 }
3414
3415 /*
3416 * There are two acceptable formats:
3417 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3418 * child[.child]* - For example: 0.1.1
3419 *
3420 * The second form can be used to specify arbitrary vdevs anywhere
3421 * in the heirarchy. For example, in a pool with a mirror of
3422 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3423 */
3424 static vdev_t *
3425 zdb_vdev_lookup(vdev_t *vdev, char *path)
3426 {
3427 char *s, *p, *q;
3428 int i;
3429
3430 if (vdev == NULL)
3431 return (NULL);
3432
3433 /* First, assume the x.x.x.x format */
3434 i = (int)strtoul(path, &s, 10);
3435 if (s == path || (s && *s != '.' && *s != '\0'))
3436 goto name;
3437 if (i < 0 || i >= vdev->vdev_children)
3438 return (NULL);
3439
3440 vdev = vdev->vdev_child[i];
3441 if (*s == '\0')
3442 return (vdev);
3443 return (zdb_vdev_lookup(vdev, s+1));
3444
3445 name:
3446 for (i = 0; i < vdev->vdev_children; i++) {
3447 vdev_t *vc = vdev->vdev_child[i];
3448
3449 if (vc->vdev_path == NULL) {
3450 vc = zdb_vdev_lookup(vc, path);
3451 if (vc == NULL)
3452 continue;
3453 else
3454 return (vc);
3455 }
3456
3457 p = strrchr(vc->vdev_path, '/');
3458 p = p ? p + 1 : vc->vdev_path;
3459 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3460
3461 if (strcmp(vc->vdev_path, path) == 0)
3462 return (vc);
3463 if (strcmp(p, path) == 0)
3464 return (vc);
3465 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3466 return (vc);
3467 }
3468
3469 return (NULL);
3470 }
3471
3472 /* ARGSUSED */
3473 static int
3474 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused)
3475 {
3476 return (random_get_pseudo_bytes(buf, len));
3477 }
3478
3479 /*
3480 * Read a block from a pool and print it out. The syntax of the
3481 * block descriptor is:
3482 *
3483 * pool:vdev_specifier:offset:size[:flags]
3484 *
3485 * pool - The name of the pool you wish to read from
3486 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3487 * offset - offset, in hex, in bytes
3488 * size - Amount of data to read, in hex, in bytes
3489 * flags - A string of characters specifying options
3490 * b: Decode a blkptr at given offset within block
3491 * *c: Calculate and display checksums
3492 * d: Decompress data before dumping
3493 * e: Byteswap data before dumping
3494 * g: Display data as a gang block header
3495 * i: Display as an indirect block
3496 * p: Do I/O to physical offset
3497 * r: Dump raw data to stdout
3498 *
3499 * * = not yet implemented
3500 */
3501 static void
3502 zdb_read_block(char *thing, spa_t *spa)
3503 {
3504 blkptr_t blk, *bp = &blk;
3505 dva_t *dva = bp->blk_dva;
3506 int flags = 0;
3507 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3508 zio_t *zio;
3509 vdev_t *vd;
3510 abd_t *pabd;
3511 void *lbuf, *buf;
3512 char *s, *p, *dup, *vdev, *flagstr;
3513 int i, error;
3514
3515 dup = strdup(thing);
3516 s = strtok(dup, ":");
3517 vdev = s ? s : "";
3518 s = strtok(NULL, ":");
3519 offset = strtoull(s ? s : "", NULL, 16);
3520 s = strtok(NULL, ":");
3521 size = strtoull(s ? s : "", NULL, 16);
3522 s = strtok(NULL, ":");
3523 flagstr = s ? s : "";
3524
3525 s = NULL;
3526 if (size == 0)
3527 s = "size must not be zero";
3528 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3529 s = "size must be a multiple of sector size";
3530 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3531 s = "offset must be a multiple of sector size";
3532 if (s) {
3533 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3534 free(dup);
3535 return;
3536 }
3537
3538 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3539 for (i = 0; flagstr[i]; i++) {
3540 int bit = flagbits[(uchar_t)flagstr[i]];
3541
3542 if (bit == 0) {
3543 (void) printf("***Invalid flag: %c\n",
3544 flagstr[i]);
3545 continue;
3546 }
3547 flags |= bit;
3548
3549 /* If it's not something with an argument, keep going */
3550 if ((bit & (ZDB_FLAG_CHECKSUM |
3551 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3552 continue;
3553
3554 p = &flagstr[i + 1];
3555 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3556 blkptr_offset = strtoull(p, &p, 16);
3557 if (*p != ':' && *p != '\0') {
3558 (void) printf("***Invalid flag arg: '%s'\n", s);
3559 free(dup);
3560 return;
3561 }
3562 }
3563 }
3564
3565 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3566 if (vd == NULL) {
3567 (void) printf("***Invalid vdev: %s\n", vdev);
3568 free(dup);
3569 return;
3570 } else {
3571 if (vd->vdev_path)
3572 (void) fprintf(stderr, "Found vdev: %s\n",
3573 vd->vdev_path);
3574 else
3575 (void) fprintf(stderr, "Found vdev type: %s\n",
3576 vd->vdev_ops->vdev_op_type);
3577 }
3578
3579 psize = size;
3580 lsize = size;
3581
3582 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE);
3583 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3584
3585 BP_ZERO(bp);
3586
3587 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3588 DVA_SET_OFFSET(&dva[0], offset);
3589 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3590 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3591
3592 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3593
3594 BP_SET_LSIZE(bp, lsize);
3595 BP_SET_PSIZE(bp, psize);
3596 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3597 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3598 BP_SET_TYPE(bp, DMU_OT_NONE);
3599 BP_SET_LEVEL(bp, 0);
3600 BP_SET_DEDUP(bp, 0);
3601 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3602
3603 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3604 zio = zio_root(spa, NULL, NULL, 0);
3605
3606 if (vd == vd->vdev_top) {
3607 /*
3608 * Treat this as a normal block read.
3609 */
3610 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
3611 ZIO_PRIORITY_SYNC_READ,
3612 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3613 } else {
3614 /*
3615 * Treat this as a vdev child I/O.
3616 */
3617 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
3618 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3619 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3620 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3621 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3622 }
3623
3624 error = zio_wait(zio);
3625 spa_config_exit(spa, SCL_STATE, FTAG);
3626
3627 if (error) {
3628 (void) printf("Read of %s failed, error: %d\n", thing, error);
3629 goto out;
3630 }
3631
3632 if (flags & ZDB_FLAG_DECOMPRESS) {
3633 /*
3634 * We don't know how the data was compressed, so just try
3635 * every decompress function at every inflated blocksize.
3636 */
3637 enum zio_compress c;
3638 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3639 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3640
3641 abd_copy_to_buf(pbuf2, pabd, psize);
3642
3643 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize,
3644 random_get_pseudo_bytes_cb, NULL));
3645
3646 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3647 SPA_MAXBLOCKSIZE - psize));
3648
3649 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3650 lsize -= SPA_MINBLOCKSIZE) {
3651 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3652 if (zio_decompress_data(c, pabd,
3653 lbuf, psize, lsize) == 0 &&
3654 zio_decompress_data_buf(c, pbuf2,
3655 lbuf2, psize, lsize) == 0 &&
3656 bcmp(lbuf, lbuf2, lsize) == 0)
3657 break;
3658 }
3659 if (c != ZIO_COMPRESS_FUNCTIONS)
3660 break;
3661 lsize -= SPA_MINBLOCKSIZE;
3662 }
3663
3664 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3665 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3666
3667 if (lsize <= psize) {
3668 (void) printf("Decompress of %s failed\n", thing);
3669 goto out;
3670 }
3671 buf = lbuf;
3672 size = lsize;
3673 } else {
3674 buf = abd_to_buf(pabd);
3675 size = psize;
3676 }
3677
3678 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3679 zdb_print_blkptr((blkptr_t *)(void *)
3680 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3681 else if (flags & ZDB_FLAG_RAW)
3682 zdb_dump_block_raw(buf, size, flags);
3683 else if (flags & ZDB_FLAG_INDIRECT)
3684 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3685 flags);
3686 else if (flags & ZDB_FLAG_GBH)
3687 zdb_dump_gbh(buf, flags);
3688 else
3689 zdb_dump_block(thing, buf, size, flags);
3690
3691 out:
3692 abd_free(pabd);
3693 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3694 free(dup);
3695 }
3696
3697 static void
3698 zdb_embedded_block(char *thing)
3699 {
3700 blkptr_t bp = { 0 };
3701 unsigned long long *words = (void *)&bp;
3702 char buf[SPA_MAXBLOCKSIZE];
3703 int err;
3704
3705 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
3706 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
3707 words + 0, words + 1, words + 2, words + 3,
3708 words + 4, words + 5, words + 6, words + 7,
3709 words + 8, words + 9, words + 10, words + 11,
3710 words + 12, words + 13, words + 14, words + 15);
3711 if (err != 16) {
3712 (void) printf("invalid input format\n");
3713 exit(1);
3714 }
3715 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
3716 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
3717 if (err != 0) {
3718 (void) printf("decode failed: %u\n", err);
3719 exit(1);
3720 }
3721 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
3722 }
3723
3724 static boolean_t
3725 pool_match(nvlist_t *cfg, char *tgt)
3726 {
3727 uint64_t v, guid = strtoull(tgt, NULL, 0);
3728 char *s;
3729
3730 if (guid != 0) {
3731 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3732 return (v == guid);
3733 } else {
3734 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3735 return (strcmp(s, tgt) == 0);
3736 }
3737 return (B_FALSE);
3738 }
3739
3740 static char *
3741 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3742 {
3743 nvlist_t *pools;
3744 nvlist_t *match = NULL;
3745 char *name = NULL;
3746 char *sepp = NULL;
3747 char sep = '\0';
3748 int count = 0;
3749 importargs_t args = { 0 };
3750
3751 args.paths = dirc;
3752 args.path = dirv;
3753 args.can_be_active = B_TRUE;
3754
3755 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3756 sep = *sepp;
3757 *sepp = '\0';
3758 }
3759
3760 pools = zpool_search_import(g_zfs, &args);
3761
3762 if (pools != NULL) {
3763 nvpair_t *elem = NULL;
3764 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3765 verify(nvpair_value_nvlist(elem, configp) == 0);
3766 if (pool_match(*configp, *target)) {
3767 count++;
3768 if (match != NULL) {
3769 /* print previously found config */
3770 if (name != NULL) {
3771 (void) printf("%s\n", name);
3772 dump_nvlist(match, 8);
3773 name = NULL;
3774 }
3775 (void) printf("%s\n",
3776 nvpair_name(elem));
3777 dump_nvlist(*configp, 8);
3778 } else {
3779 match = *configp;
3780 name = nvpair_name(elem);
3781 }
3782 }
3783 }
3784 }
3785 if (count > 1)
3786 (void) fatal("\tMatched %d pools - use pool GUID "
3787 "instead of pool name or \n"
3788 "\tpool name part of a dataset name to select pool", count);
3789
3790 if (sepp)
3791 *sepp = sep;
3792 /*
3793 * If pool GUID was specified for pool id, replace it with pool name
3794 */
3795 if (name && (strstr(*target, name) != *target)) {
3796 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3797
3798 *target = umem_alloc(sz, UMEM_NOFAIL);
3799 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3800 }
3801
3802 *configp = name ? match : NULL;
3803
3804 return (name);
3805 }
3806
3807 int
3808 main(int argc, char **argv)
3809 {
3810 int i, c;
3811 struct rlimit rl = { 1024, 1024 };
3812 spa_t *spa = NULL;
3813 objset_t *os = NULL;
3814 int dump_all = 1;
3815 int verbose = 0;
3816 int error = 0;
3817 char **searchdirs = NULL;
3818 int nsearch = 0;
3819 char *target;
3820 nvlist_t *policy = NULL;
3821 uint64_t max_txg = UINT64_MAX;
3822 int flags = ZFS_IMPORT_MISSING_LOG;
3823 int rewind = ZPOOL_NEVER_REWIND;
3824 char *spa_config_path_env;
3825 boolean_t target_is_spa = B_TRUE;
3826
3827 (void) setrlimit(RLIMIT_NOFILE, &rl);
3828 (void) enable_extended_FILE_stdio(-1, -1);
3829
3830 dprintf_setup(&argc, argv);
3831
3832 /*
3833 * If there is an environment variable SPA_CONFIG_PATH it overrides
3834 * default spa_config_path setting. If -U flag is specified it will
3835 * override this environment variable settings once again.
3836 */
3837 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3838 if (spa_config_path_env != NULL)
3839 spa_config_path = spa_config_path_env;
3840
3841 while ((c = getopt(argc, argv,
3842 "AbcCdDeEFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
3843 switch (c) {
3844 case 'b':
3845 case 'c':
3846 case 'C':
3847 case 'd':
3848 case 'D':
3849 case 'E':
3850 case 'G':
3851 case 'h':
3852 case 'i':
3853 case 'l':
3854 case 'm':
3855 case 'M':
3856 case 'O':
3857 case 'R':
3858 case 's':
3859 case 'S':
3860 case 'u':
3861 dump_opt[c]++;
3862 dump_all = 0;
3863 break;
3864 case 'A':
3865 case 'e':
3866 case 'F':
3867 case 'L':
3868 case 'P':
3869 case 'q':
3870 case 'X':
3871 dump_opt[c]++;
3872 break;
3873 /* NB: Sort single match options below. */
3874 case 'I':
3875 max_inflight = strtoull(optarg, NULL, 0);
3876 if (max_inflight == 0) {
3877 (void) fprintf(stderr, "maximum number "
3878 "of inflight I/Os must be greater "
3879 "than 0\n");
3880 usage();
3881 }
3882 break;
3883 case 'o':
3884 error = set_global_var(optarg);
3885 if (error != 0)
3886 usage();
3887 break;
3888 case 'p':
3889 if (searchdirs == NULL) {
3890 searchdirs = umem_alloc(sizeof (char *),
3891 UMEM_NOFAIL);
3892 } else {
3893 char **tmp = umem_alloc((nsearch + 1) *
3894 sizeof (char *), UMEM_NOFAIL);
3895 bcopy(searchdirs, tmp, nsearch *
3896 sizeof (char *));
3897 umem_free(searchdirs,
3898 nsearch * sizeof (char *));
3899 searchdirs = tmp;
3900 }
3901 searchdirs[nsearch++] = optarg;
3902 break;
3903 case 't':
3904 max_txg = strtoull(optarg, NULL, 0);
3905 if (max_txg < TXG_INITIAL) {
3906 (void) fprintf(stderr, "incorrect txg "
3907 "specified: %s\n", optarg);
3908 usage();
3909 }
3910 break;
3911 case 'U':
3912 spa_config_path = optarg;
3913 if (spa_config_path[0] != '/') {
3914 (void) fprintf(stderr,
3915 "cachefile must be an absolute path "
3916 "(i.e. start with a slash)\n");
3917 usage();
3918 }
3919 break;
3920 case 'v':
3921 verbose++;
3922 break;
3923 case 'V':
3924 flags = ZFS_IMPORT_VERBATIM;
3925 break;
3926 case 'x':
3927 vn_dumpdir = optarg;
3928 break;
3929 default:
3930 usage();
3931 break;
3932 }
3933 }
3934
3935 if (!dump_opt['e'] && searchdirs != NULL) {
3936 (void) fprintf(stderr, "-p option requires use of -e\n");
3937 usage();
3938 }
3939
3940 /*
3941 * ZDB does not typically re-read blocks; therefore limit the ARC
3942 * to 256 MB, which can be used entirely for metadata.
3943 */
3944 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
3945
3946 /*
3947 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
3948 * "zdb -b" uses traversal prefetch which uses async reads.
3949 * For good performance, let several of them be active at once.
3950 */
3951 zfs_vdev_async_read_max_active = 10;
3952
3953 /*
3954 * Disable reference tracking for better performance.
3955 */
3956 reference_tracking_enable = B_FALSE;
3957
3958 kernel_init(FREAD);
3959 g_zfs = libzfs_init();
3960 ASSERT(g_zfs != NULL);
3961
3962 if (dump_all)
3963 verbose = MAX(verbose, 1);
3964
3965 for (c = 0; c < 256; c++) {
3966 if (dump_all && strchr("AeEFlLOPRSX", c) == NULL)
3967 dump_opt[c] = 1;
3968 if (dump_opt[c])
3969 dump_opt[c] += verbose;
3970 }
3971
3972 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3973 zfs_recover = (dump_opt['A'] > 1);
3974
3975 argc -= optind;
3976 argv += optind;
3977
3978 if (argc < 2 && dump_opt['R'])
3979 usage();
3980
3981 if (dump_opt['E']) {
3982 if (argc != 1)
3983 usage();
3984 zdb_embedded_block(argv[0]);
3985 return (0);
3986 }
3987
3988 if (argc < 1) {
3989 if (!dump_opt['e'] && dump_opt['C']) {
3990 dump_cachefile(spa_config_path);
3991 return (0);
3992 }
3993 usage();
3994 }
3995
3996 if (dump_opt['l'])
3997 return (dump_label(argv[0]));
3998
3999 if (dump_opt['O']) {
4000 if (argc != 2)
4001 usage();
4002 dump_opt['v'] = verbose + 3;
4003 return (dump_path(argv[0], argv[1]));
4004 }
4005
4006 if (dump_opt['X'] || dump_opt['F'])
4007 rewind = ZPOOL_DO_REWIND |
4008 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
4009
4010 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
4011 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
4012 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
4013 fatal("internal error: %s", strerror(ENOMEM));
4014
4015 error = 0;
4016 target = argv[0];
4017
4018 if (dump_opt['e']) {
4019 nvlist_t *cfg = NULL;
4020 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
4021
4022 error = ENOENT;
4023 if (name) {
4024 if (dump_opt['C'] > 1) {
4025 (void) printf("\nConfiguration for import:\n");
4026 dump_nvlist(cfg, 8);
4027 }
4028 if (nvlist_add_nvlist(cfg,
4029 ZPOOL_REWIND_POLICY, policy) != 0) {
4030 fatal("can't open '%s': %s",
4031 target, strerror(ENOMEM));
4032 }
4033 error = spa_import(name, cfg, NULL, flags);
4034 }
4035 }
4036
4037 if (strpbrk(target, "/@") != NULL) {
4038 size_t targetlen;
4039
4040 target_is_spa = B_FALSE;
4041 /*
4042 * Remove any trailing slash. Later code would get confused
4043 * by it, but we want to allow it so that "pool/" can
4044 * indicate that we want to dump the topmost filesystem,
4045 * rather than the whole pool.
4046 */
4047 targetlen = strlen(target);
4048 if (targetlen != 0 && target[targetlen - 1] == '/')
4049 target[targetlen - 1] = '\0';
4050 }
4051
4052 if (error == 0) {
4053 if (target_is_spa || dump_opt['R']) {
4054 error = spa_open_rewind(target, &spa, FTAG, policy,
4055 NULL);
4056 if (error) {
4057 /*
4058 * If we're missing the log device then
4059 * try opening the pool after clearing the
4060 * log state.
4061 */
4062 mutex_enter(&spa_namespace_lock);
4063 if ((spa = spa_lookup(target)) != NULL &&
4064 spa->spa_log_state == SPA_LOG_MISSING) {
4065 spa->spa_log_state = SPA_LOG_CLEAR;
4066 error = 0;
4067 }
4068 mutex_exit(&spa_namespace_lock);
4069
4070 if (!error) {
4071 error = spa_open_rewind(target, &spa,
4072 FTAG, policy, NULL);
4073 }
4074 }
4075 } else {
4076 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
4077 }
4078 }
4079 nvlist_free(policy);
4080
4081 if (error)
4082 fatal("can't open '%s': %s", target, strerror(error));
4083
4084 argv++;
4085 argc--;
4086 if (!dump_opt['R']) {
4087 if (argc > 0) {
4088 zopt_objects = argc;
4089 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
4090 for (i = 0; i < zopt_objects; i++) {
4091 errno = 0;
4092 zopt_object[i] = strtoull(argv[i], NULL, 0);
4093 if (zopt_object[i] == 0 && errno != 0)
4094 fatal("bad number %s: %s",
4095 argv[i], strerror(errno));
4096 }
4097 }
4098 if (os != NULL) {
4099 dump_dir(os);
4100 } else if (zopt_objects > 0 && !dump_opt['m']) {
4101 dump_dir(spa->spa_meta_objset);
4102 } else {
4103 dump_zpool(spa);
4104 }
4105 } else {
4106 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
4107 flagbits['c'] = ZDB_FLAG_CHECKSUM;
4108 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
4109 flagbits['e'] = ZDB_FLAG_BSWAP;
4110 flagbits['g'] = ZDB_FLAG_GBH;
4111 flagbits['i'] = ZDB_FLAG_INDIRECT;
4112 flagbits['p'] = ZDB_FLAG_PHYS;
4113 flagbits['r'] = ZDB_FLAG_RAW;
4114
4115 for (i = 0; i < argc; i++)
4116 zdb_read_block(argv[i], spa);
4117 }
4118
4119 if (os != NULL)
4120 close_objset(os, FTAG);
4121 else
4122 spa_close(spa, FTAG);
4123
4124 fuid_table_destroy();
4125
4126 dump_debug_buffer();
4127
4128 libzfs_fini(g_zfs);
4129 kernel_fini();
4130
4131 return (0);
4132 }
Unleashed OS