1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2017 Nexenta Systems, Inc.
27 * Copyright 2017 RackTop Systems.
28 */
29
30 #include <stdio.h>
31 #include <unistd.h>
32 #include <stdio_ext.h>
33 #include <stdlib.h>
34 #include <ctype.h>
35 #include <string.h>
36 #include <errno.h>
37 #include <sys/zfs_context.h>
38 #include <sys/spa.h>
39 #include <sys/spa_impl.h>
40 #include <sys/dmu.h>
41 #include <sys/zap.h>
42 #include <sys/fs/zfs.h>
43 #include <sys/zfs_znode.h>
44 #include <sys/zfs_sa.h>
45 #include <sys/sa.h>
46 #include <sys/sa_impl.h>
47 #include <sys/vdev.h>
48 #include <sys/vdev_impl.h>
49 #include <sys/metaslab_impl.h>
50 #include <sys/dmu_objset.h>
51 #include <sys/dsl_dir.h>
52 #include <sys/dsl_dataset.h>
53 #include <sys/dsl_pool.h>
54 #include <sys/dbuf.h>
55 #include <sys/zil.h>
56 #include <sys/zil_impl.h>
57 #include <sys/stat.h>
58 #include <sys/resource.h>
59 #include <sys/dmu_traverse.h>
60 #include <sys/zio_checksum.h>
61 #include <sys/zio_compress.h>
62 #include <sys/zfs_fuid.h>
63 #include <sys/arc.h>
64 #include <sys/ddt.h>
65 #include <sys/zfeature.h>
66 #include <sys/abd.h>
67 #include <sys/blkptr.h>
68 #include <zfs_comutil.h>
69 #include <libcmdutils.h>
70 #undef verify
71 #include <libzfs.h>
72
73 #include "zdb.h"
74
75 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
76 zio_compress_table[(idx)].ci_name : "UNKNOWN")
77 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
78 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
79 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
80 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
81 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
82 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
83 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
84 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
85
86 #ifndef lint
87 extern int reference_tracking_enable;
88 extern boolean_t zfs_recover;
89 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
90 extern int zfs_vdev_async_read_max_active;
91 extern int aok;
92 #else
93 int reference_tracking_enable;
94 boolean_t zfs_recover;
95 uint64_t zfs_arc_max, zfs_arc_meta_limit;
96 int zfs_vdev_async_read_max_active;
97 int aok;
98 #endif
99
100 static const char cmdname[] = "zdb";
101 uint8_t dump_opt[256];
102
103 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
104
105 uint64_t *zopt_object = NULL;
106 static unsigned zopt_objects = 0;
107 libzfs_handle_t *g_zfs;
108 uint64_t max_inflight = 1000;
109
110 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
111
112 /*
113 * These libumem hooks provide a reasonable set of defaults for the allocator's
114 * debugging facilities.
115 */
116 const char *
117 _umem_debug_init()
118 {
119 return ("default,verbose"); /* $UMEM_DEBUG setting */
120 }
121
122 const char *
123 _umem_logging_init(void)
124 {
125 return ("fail,contents"); /* $UMEM_LOGGING setting */
126 }
127
128 static void
129 usage(void)
130 {
131 (void) fprintf(stderr,
132 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] "
133 "[-I <inflight I/Os>]\n"
134 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
135 "\t\t[<poolname> [<object> ...]]\n"
136 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> "
137 "[<object> ...]\n"
138 "\t%s -C [-A] [-U <cache>]\n"
139 "\t%s -l [-Aqu] <device>\n"
140 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
141 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
142 "\t%s -O <dataset> <path>\n"
143 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
144 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
145 "\t%s -E [-A] word0:word1:...:word15\n"
146 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
147 "<poolname>\n\n",
148 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
149 cmdname, cmdname);
150
151 (void) fprintf(stderr, " Dataset name must include at least one "
152 "separator character '/' or '@'\n");
153 (void) fprintf(stderr, " If dataset name is specified, only that "
154 "dataset is dumped\n");
155 (void) fprintf(stderr, " If object numbers are specified, only "
156 "those objects are dumped\n\n");
157 (void) fprintf(stderr, " Options to control amount of output:\n");
158 (void) fprintf(stderr, " -b block statistics\n");
159 (void) fprintf(stderr, " -c checksum all metadata (twice for "
160 "all data) blocks\n");
161 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
162 (void) fprintf(stderr, " -d dataset(s)\n");
163 (void) fprintf(stderr, " -D dedup statistics\n");
164 (void) fprintf(stderr, " -E decode and display block from an "
165 "embedded block pointer\n");
166 (void) fprintf(stderr, " -h pool history\n");
167 (void) fprintf(stderr, " -i intent logs\n");
168 (void) fprintf(stderr, " -l read label contents\n");
169 (void) fprintf(stderr, " -L disable leak tracking (do not "
170 "load spacemaps)\n");
171 (void) fprintf(stderr, " -m metaslabs\n");
172 (void) fprintf(stderr, " -M metaslab groups\n");
173 (void) fprintf(stderr, " -O perform object lookups by path\n");
174 (void) fprintf(stderr, " -R read and display block from a "
175 "device\n");
176 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
177 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
178 (void) fprintf(stderr, " -v verbose (applies to all "
179 "others)\n\n");
180 (void) fprintf(stderr, " Below options are intended for use "
181 "with other options:\n");
182 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
183 "panic recovery (-AA) or both (-AAA)\n");
184 (void) fprintf(stderr, " -e pool is exported/destroyed/"
185 "has altroot/not in a cachefile\n");
186 (void) fprintf(stderr, " -F attempt automatic rewind within "
187 "safe range of transaction groups\n");
188 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
189 "exiting\n");
190 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
191 "specify the maximum number of "
192 "checksumming I/Os [default is 200]\n");
193 (void) fprintf(stderr, " -o <variable>=<value> set global "
194 "variable to an unsigned 32-bit integer value\n");
195 (void) fprintf(stderr, " -p <path> -- use one or more with "
196 "-e to specify path to vdev dir\n");
197 (void) fprintf(stderr, " -P print numbers in parseable form\n");
198 (void) fprintf(stderr, " -q don't print label contents\n");
199 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
200 "searching for uberblocks\n");
201 (void) fprintf(stderr, " -u uberblock\n");
202 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
203 "cachefile\n");
204 (void) fprintf(stderr, " -V do verbatim import\n");
205 (void) fprintf(stderr, " -x <dumpdir> -- "
206 "dump all read blocks into specified directory\n");
207 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
208 "work with dataset)\n\n");
209 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
210 "to make only that option verbose\n");
211 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
212 exit(1);
213 }
214
215 static void
216 dump_debug_buffer()
217 {
218 if (dump_opt['G']) {
219 (void) printf("\n");
220 zfs_dbgmsg_print("zdb");
221 }
222 }
223
224 /*
225 * Called for usage errors that are discovered after a call to spa_open(),
226 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
227 */
228
229 static void
230 fatal(const char *fmt, ...)
231 {
232 va_list ap;
233
234 va_start(ap, fmt);
235 (void) fprintf(stderr, "%s: ", cmdname);
236 (void) vfprintf(stderr, fmt, ap);
237 va_end(ap);
238 (void) fprintf(stderr, "\n");
239
240 dump_debug_buffer();
241
242 exit(1);
243 }
244
245 /* ARGSUSED */
246 static void
247 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
248 {
249 nvlist_t *nv;
250 size_t nvsize = *(uint64_t *)data;
251 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
252
253 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
254
255 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
256
257 umem_free(packed, nvsize);
258
259 dump_nvlist(nv, 8);
260
261 nvlist_free(nv);
262 }
263
264 /* ARGSUSED */
265 static void
266 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
267 {
268 spa_history_phys_t *shp = data;
269
270 if (shp == NULL)
271 return;
272
273 (void) printf("\t\tpool_create_len = %llu\n",
274 (u_longlong_t)shp->sh_pool_create_len);
275 (void) printf("\t\tphys_max_off = %llu\n",
276 (u_longlong_t)shp->sh_phys_max_off);
277 (void) printf("\t\tbof = %llu\n",
278 (u_longlong_t)shp->sh_bof);
279 (void) printf("\t\teof = %llu\n",
280 (u_longlong_t)shp->sh_eof);
281 (void) printf("\t\trecords_lost = %llu\n",
282 (u_longlong_t)shp->sh_records_lost);
283 }
284
285 static void
286 zdb_nicenum(uint64_t num, char *buf, size_t buflen)
287 {
288 if (dump_opt['P'])
289 (void) snprintf(buf, buflen, "%llu", (longlong_t)num);
290 else
291 nicenum(num, buf, sizeof (buf));
292 }
293
294 static const char histo_stars[] = "****************************************";
295 static const uint64_t histo_width = sizeof (histo_stars) - 1;
296
297 static void
298 dump_histogram(const uint64_t *histo, int size, int offset)
299 {
300 int i;
301 int minidx = size - 1;
302 int maxidx = 0;
303 uint64_t max = 0;
304
305 for (i = 0; i < size; i++) {
306 if (histo[i] > max)
307 max = histo[i];
308 if (histo[i] > 0 && i > maxidx)
309 maxidx = i;
310 if (histo[i] > 0 && i < minidx)
311 minidx = i;
312 }
313
314 if (max < histo_width)
315 max = histo_width;
316
317 for (i = minidx; i <= maxidx; i++) {
318 (void) printf("\t\t\t%3u: %6llu %s\n",
319 i + offset, (u_longlong_t)histo[i],
320 &histo_stars[(max - histo[i]) * histo_width / max]);
321 }
322 }
323
324 static void
325 dump_zap_stats(objset_t *os, uint64_t object)
326 {
327 int error;
328 zap_stats_t zs;
329
330 error = zap_get_stats(os, object, &zs);
331 if (error)
332 return;
333
334 if (zs.zs_ptrtbl_len == 0) {
335 ASSERT(zs.zs_num_blocks == 1);
336 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
337 (u_longlong_t)zs.zs_blocksize,
338 (u_longlong_t)zs.zs_num_entries);
339 return;
340 }
341
342 (void) printf("\tFat ZAP stats:\n");
343
344 (void) printf("\t\tPointer table:\n");
345 (void) printf("\t\t\t%llu elements\n",
346 (u_longlong_t)zs.zs_ptrtbl_len);
347 (void) printf("\t\t\tzt_blk: %llu\n",
348 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
349 (void) printf("\t\t\tzt_numblks: %llu\n",
350 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
351 (void) printf("\t\t\tzt_shift: %llu\n",
352 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
353 (void) printf("\t\t\tzt_blks_copied: %llu\n",
354 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
355 (void) printf("\t\t\tzt_nextblk: %llu\n",
356 (u_longlong_t)zs.zs_ptrtbl_nextblk);
357
358 (void) printf("\t\tZAP entries: %llu\n",
359 (u_longlong_t)zs.zs_num_entries);
360 (void) printf("\t\tLeaf blocks: %llu\n",
361 (u_longlong_t)zs.zs_num_leafs);
362 (void) printf("\t\tTotal blocks: %llu\n",
363 (u_longlong_t)zs.zs_num_blocks);
364 (void) printf("\t\tzap_block_type: 0x%llx\n",
365 (u_longlong_t)zs.zs_block_type);
366 (void) printf("\t\tzap_magic: 0x%llx\n",
367 (u_longlong_t)zs.zs_magic);
368 (void) printf("\t\tzap_salt: 0x%llx\n",
369 (u_longlong_t)zs.zs_salt);
370
371 (void) printf("\t\tLeafs with 2^n pointers:\n");
372 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
373
374 (void) printf("\t\tBlocks with n*5 entries:\n");
375 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
376
377 (void) printf("\t\tBlocks n/10 full:\n");
378 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
379
380 (void) printf("\t\tEntries with n chunks:\n");
381 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
382
383 (void) printf("\t\tBuckets with n entries:\n");
384 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
385 }
386
387 /*ARGSUSED*/
388 static void
389 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
390 {
391 }
392
393 /*ARGSUSED*/
394 static void
395 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
396 {
397 (void) printf("\tUNKNOWN OBJECT TYPE\n");
398 }
399
400 /*ARGSUSED*/
401 static void
402 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
403 {
404 }
405
406 /*ARGSUSED*/
407 static void
408 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
409 {
410 }
411
412 /*ARGSUSED*/
413 static void
414 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
415 {
416 zap_cursor_t zc;
417 zap_attribute_t attr;
418 void *prop;
419 unsigned i;
420
421 dump_zap_stats(os, object);
422 (void) printf("\n");
423
424 for (zap_cursor_init(&zc, os, object);
425 zap_cursor_retrieve(&zc, &attr) == 0;
426 zap_cursor_advance(&zc)) {
427 (void) printf("\t\t%s = ", attr.za_name);
428 if (attr.za_num_integers == 0) {
429 (void) printf("\n");
430 continue;
431 }
432 prop = umem_zalloc(attr.za_num_integers *
433 attr.za_integer_length, UMEM_NOFAIL);
434 (void) zap_lookup(os, object, attr.za_name,
435 attr.za_integer_length, attr.za_num_integers, prop);
436 if (attr.za_integer_length == 1) {
437 (void) printf("%s", (char *)prop);
438 } else {
439 for (i = 0; i < attr.za_num_integers; i++) {
440 switch (attr.za_integer_length) {
441 case 2:
442 (void) printf("%u ",
443 ((uint16_t *)prop)[i]);
444 break;
445 case 4:
446 (void) printf("%u ",
447 ((uint32_t *)prop)[i]);
448 break;
449 case 8:
450 (void) printf("%lld ",
451 (u_longlong_t)((int64_t *)prop)[i]);
452 break;
453 }
454 }
455 }
456 (void) printf("\n");
457 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
458 }
459 zap_cursor_fini(&zc);
460 }
461
462 static void
463 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
464 {
465 bpobj_phys_t *bpop = data;
466 char bytes[32], comp[32], uncomp[32];
467
468 /* make sure the output won't get truncated */
469 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
470 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
471 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
472
473 if (bpop == NULL)
474 return;
475
476 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes));
477 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp));
478 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp));
479
480 (void) printf("\t\tnum_blkptrs = %llu\n",
481 (u_longlong_t)bpop->bpo_num_blkptrs);
482 (void) printf("\t\tbytes = %s\n", bytes);
483 if (size >= BPOBJ_SIZE_V1) {
484 (void) printf("\t\tcomp = %s\n", comp);
485 (void) printf("\t\tuncomp = %s\n", uncomp);
486 }
487 if (size >= sizeof (*bpop)) {
488 (void) printf("\t\tsubobjs = %llu\n",
489 (u_longlong_t)bpop->bpo_subobjs);
490 (void) printf("\t\tnum_subobjs = %llu\n",
491 (u_longlong_t)bpop->bpo_num_subobjs);
492 }
493
494 if (dump_opt['d'] < 5)
495 return;
496
497 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
498 char blkbuf[BP_SPRINTF_LEN];
499 blkptr_t bp;
500
501 int err = dmu_read(os, object,
502 i * sizeof (bp), sizeof (bp), &bp, 0);
503 if (err != 0) {
504 (void) printf("got error %u from dmu_read\n", err);
505 break;
506 }
507 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
508 (void) printf("\t%s\n", blkbuf);
509 }
510 }
511
512 /* ARGSUSED */
513 static void
514 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
515 {
516 dmu_object_info_t doi;
517
518 VERIFY0(dmu_object_info(os, object, &doi));
519 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
520
521 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
522 if (err != 0) {
523 (void) printf("got error %u from dmu_read\n", err);
524 kmem_free(subobjs, doi.doi_max_offset);
525 return;
526 }
527
528 int64_t last_nonzero = -1;
529 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
530 if (subobjs[i] != 0)
531 last_nonzero = i;
532 }
533
534 for (int64_t i = 0; i <= last_nonzero; i++) {
535 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
536 }
537 kmem_free(subobjs, doi.doi_max_offset);
538 }
539
540 /*ARGSUSED*/
541 static void
542 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
543 {
544 dump_zap_stats(os, object);
545 /* contents are printed elsewhere, properly decoded */
546 }
547
548 /*ARGSUSED*/
549 static void
550 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
551 {
552 zap_cursor_t zc;
553 zap_attribute_t attr;
554
555 dump_zap_stats(os, object);
556 (void) printf("\n");
557
558 for (zap_cursor_init(&zc, os, object);
559 zap_cursor_retrieve(&zc, &attr) == 0;
560 zap_cursor_advance(&zc)) {
561 (void) printf("\t\t%s = ", attr.za_name);
562 if (attr.za_num_integers == 0) {
563 (void) printf("\n");
564 continue;
565 }
566 (void) printf(" %llx : [%d:%d:%d]\n",
567 (u_longlong_t)attr.za_first_integer,
568 (int)ATTR_LENGTH(attr.za_first_integer),
569 (int)ATTR_BSWAP(attr.za_first_integer),
570 (int)ATTR_NUM(attr.za_first_integer));
571 }
572 zap_cursor_fini(&zc);
573 }
574
575 /*ARGSUSED*/
576 static void
577 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
578 {
579 zap_cursor_t zc;
580 zap_attribute_t attr;
581 uint16_t *layout_attrs;
582 unsigned i;
583
584 dump_zap_stats(os, object);
585 (void) printf("\n");
586
587 for (zap_cursor_init(&zc, os, object);
588 zap_cursor_retrieve(&zc, &attr) == 0;
589 zap_cursor_advance(&zc)) {
590 (void) printf("\t\t%s = [", attr.za_name);
591 if (attr.za_num_integers == 0) {
592 (void) printf("\n");
593 continue;
594 }
595
596 VERIFY(attr.za_integer_length == 2);
597 layout_attrs = umem_zalloc(attr.za_num_integers *
598 attr.za_integer_length, UMEM_NOFAIL);
599
600 VERIFY(zap_lookup(os, object, attr.za_name,
601 attr.za_integer_length,
602 attr.za_num_integers, layout_attrs) == 0);
603
604 for (i = 0; i != attr.za_num_integers; i++)
605 (void) printf(" %d ", (int)layout_attrs[i]);
606 (void) printf("]\n");
607 umem_free(layout_attrs,
608 attr.za_num_integers * attr.za_integer_length);
609 }
610 zap_cursor_fini(&zc);
611 }
612
613 /*ARGSUSED*/
614 static void
615 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
616 {
617 zap_cursor_t zc;
618 zap_attribute_t attr;
619 const char *typenames[] = {
620 /* 0 */ "not specified",
621 /* 1 */ "FIFO",
622 /* 2 */ "Character Device",
623 /* 3 */ "3 (invalid)",
624 /* 4 */ "Directory",
625 /* 5 */ "5 (invalid)",
626 /* 6 */ "Block Device",
627 /* 7 */ "7 (invalid)",
628 /* 8 */ "Regular File",
629 /* 9 */ "9 (invalid)",
630 /* 10 */ "Symbolic Link",
631 /* 11 */ "11 (invalid)",
632 /* 12 */ "Socket",
633 /* 13 */ "Door",
634 /* 14 */ "Event Port",
635 /* 15 */ "15 (invalid)",
636 };
637
638 dump_zap_stats(os, object);
639 (void) printf("\n");
640
641 for (zap_cursor_init(&zc, os, object);
642 zap_cursor_retrieve(&zc, &attr) == 0;
643 zap_cursor_advance(&zc)) {
644 (void) printf("\t\t%s = %lld (type: %s)\n",
645 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
646 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
647 }
648 zap_cursor_fini(&zc);
649 }
650
651 static int
652 get_dtl_refcount(vdev_t *vd)
653 {
654 int refcount = 0;
655
656 if (vd->vdev_ops->vdev_op_leaf) {
657 space_map_t *sm = vd->vdev_dtl_sm;
658
659 if (sm != NULL &&
660 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
661 return (1);
662 return (0);
663 }
664
665 for (unsigned c = 0; c < vd->vdev_children; c++)
666 refcount += get_dtl_refcount(vd->vdev_child[c]);
667 return (refcount);
668 }
669
670 static int
671 get_metaslab_refcount(vdev_t *vd)
672 {
673 int refcount = 0;
674
675 if (vd->vdev_top == vd && !vd->vdev_removing) {
676 for (unsigned m = 0; m < vd->vdev_ms_count; m++) {
677 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
678
679 if (sm != NULL &&
680 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
681 refcount++;
682 }
683 }
684 for (unsigned c = 0; c < vd->vdev_children; c++)
685 refcount += get_metaslab_refcount(vd->vdev_child[c]);
686
687 return (refcount);
688 }
689
690 static int
691 verify_spacemap_refcounts(spa_t *spa)
692 {
693 uint64_t expected_refcount = 0;
694 uint64_t actual_refcount;
695
696 (void) feature_get_refcount(spa,
697 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
698 &expected_refcount);
699 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
700 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
701
702 if (expected_refcount != actual_refcount) {
703 (void) printf("space map refcount mismatch: expected %lld != "
704 "actual %lld\n",
705 (longlong_t)expected_refcount,
706 (longlong_t)actual_refcount);
707 return (2);
708 }
709 return (0);
710 }
711
712 static void
713 dump_spacemap(objset_t *os, space_map_t *sm)
714 {
715 uint64_t alloc, offset, entry;
716 const char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
717 "INVALID", "INVALID", "INVALID", "INVALID" };
718
719 if (sm == NULL)
720 return;
721
722 /*
723 * Print out the freelist entries in both encoded and decoded form.
724 */
725 alloc = 0;
726 for (offset = 0; offset < space_map_length(sm);
727 offset += sizeof (entry)) {
728 uint8_t mapshift = sm->sm_shift;
729
730 VERIFY0(dmu_read(os, space_map_object(sm), offset,
731 sizeof (entry), &entry, DMU_READ_PREFETCH));
732 if (SM_DEBUG_DECODE(entry)) {
733
734 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
735 (u_longlong_t)(offset / sizeof (entry)),
736 ddata[SM_DEBUG_ACTION_DECODE(entry)],
737 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
738 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
739 } else {
740 (void) printf("\t [%6llu] %c range:"
741 " %010llx-%010llx size: %06llx\n",
742 (u_longlong_t)(offset / sizeof (entry)),
743 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
744 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
745 mapshift) + sm->sm_start),
746 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
747 mapshift) + sm->sm_start +
748 (SM_RUN_DECODE(entry) << mapshift)),
749 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
750 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
751 alloc += SM_RUN_DECODE(entry) << mapshift;
752 else
753 alloc -= SM_RUN_DECODE(entry) << mapshift;
754 }
755 }
756 if (alloc != space_map_allocated(sm)) {
757 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
758 "with space map summary (%llu)\n",
759 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
760 }
761 }
762
763 static void
764 dump_metaslab_stats(metaslab_t *msp)
765 {
766 char maxbuf[32];
767 range_tree_t *rt = msp->ms_tree;
768 avl_tree_t *t = &msp->ms_size_tree;
769 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
770
771 /* max sure nicenum has enough space */
772 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ);
773
774 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf));
775
776 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
777 "segments", avl_numnodes(t), "maxsize", maxbuf,
778 "freepct", free_pct);
779 (void) printf("\tIn-memory histogram:\n");
780 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
781 }
782
783 static void
784 dump_metaslab(metaslab_t *msp)
785 {
786 vdev_t *vd = msp->ms_group->mg_vd;
787 spa_t *spa = vd->vdev_spa;
788 space_map_t *sm = msp->ms_sm;
789 char freebuf[32];
790
791 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf,
792 sizeof (freebuf));
793
794 (void) printf(
795 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
796 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
797 (u_longlong_t)space_map_object(sm), freebuf);
798
799 if (dump_opt['m'] > 2 && !dump_opt['L']) {
800 mutex_enter(&msp->ms_lock);
801 metaslab_load_wait(msp);
802 if (!msp->ms_loaded) {
803 VERIFY0(metaslab_load(msp));
804 range_tree_stat_verify(msp->ms_tree);
805 }
806 dump_metaslab_stats(msp);
807 metaslab_unload(msp);
808 mutex_exit(&msp->ms_lock);
809 }
810
811 if (dump_opt['m'] > 1 && sm != NULL &&
812 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
813 /*
814 * The space map histogram represents free space in chunks
815 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
816 */
817 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
818 (u_longlong_t)msp->ms_fragmentation);
819 dump_histogram(sm->sm_phys->smp_histogram,
820 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
821 }
822
823 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
824 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
825
826 mutex_enter(&msp->ms_lock);
827 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
828 mutex_exit(&msp->ms_lock);
829 }
830 }
831
832 static void
833 print_vdev_metaslab_header(vdev_t *vd)
834 {
835 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
836 (u_longlong_t)vd->vdev_id,
837 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
838 "offset", "spacemap", "free");
839 (void) printf("\t%15s %19s %15s %10s\n",
840 "---------------", "-------------------",
841 "---------------", "-------------");
842 }
843
844 static void
845 dump_metaslab_groups(spa_t *spa)
846 {
847 vdev_t *rvd = spa->spa_root_vdev;
848 metaslab_class_t *mc = spa_normal_class(spa);
849 uint64_t fragmentation;
850
851 metaslab_class_histogram_verify(mc);
852
853 for (unsigned c = 0; c < rvd->vdev_children; c++) {
854 vdev_t *tvd = rvd->vdev_child[c];
855 metaslab_group_t *mg = tvd->vdev_mg;
856
857 if (mg->mg_class != mc)
858 continue;
859
860 metaslab_group_histogram_verify(mg);
861 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
862
863 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
864 "fragmentation",
865 (u_longlong_t)tvd->vdev_id,
866 (u_longlong_t)tvd->vdev_ms_count);
867 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
868 (void) printf("%3s\n", "-");
869 } else {
870 (void) printf("%3llu%%\n",
871 (u_longlong_t)mg->mg_fragmentation);
872 }
873 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
874 }
875
876 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
877 fragmentation = metaslab_class_fragmentation(mc);
878 if (fragmentation == ZFS_FRAG_INVALID)
879 (void) printf("\t%3s\n", "-");
880 else
881 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
882 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
883 }
884
885 static void
886 dump_metaslabs(spa_t *spa)
887 {
888 vdev_t *vd, *rvd = spa->spa_root_vdev;
889 uint64_t m, c = 0, children = rvd->vdev_children;
890
891 (void) printf("\nMetaslabs:\n");
892
893 if (!dump_opt['d'] && zopt_objects > 0) {
894 c = zopt_object[0];
895
896 if (c >= children)
897 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
898
899 if (zopt_objects > 1) {
900 vd = rvd->vdev_child[c];
901 print_vdev_metaslab_header(vd);
902
903 for (m = 1; m < zopt_objects; m++) {
904 if (zopt_object[m] < vd->vdev_ms_count)
905 dump_metaslab(
906 vd->vdev_ms[zopt_object[m]]);
907 else
908 (void) fprintf(stderr, "bad metaslab "
909 "number %llu\n",
910 (u_longlong_t)zopt_object[m]);
911 }
912 (void) printf("\n");
913 return;
914 }
915 children = c + 1;
916 }
917 for (; c < children; c++) {
918 vd = rvd->vdev_child[c];
919 print_vdev_metaslab_header(vd);
920
921 for (m = 0; m < vd->vdev_ms_count; m++)
922 dump_metaslab(vd->vdev_ms[m]);
923 (void) printf("\n");
924 }
925 }
926
927 static void
928 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
929 {
930 const ddt_phys_t *ddp = dde->dde_phys;
931 const ddt_key_t *ddk = &dde->dde_key;
932 const char *types[4] = { "ditto", "single", "double", "triple" };
933 char blkbuf[BP_SPRINTF_LEN];
934 blkptr_t blk;
935
936 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
937 if (ddp->ddp_phys_birth == 0)
938 continue;
939 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
940 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
941 (void) printf("index %llx refcnt %llu %s %s\n",
942 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
943 types[p], blkbuf);
944 }
945 }
946
947 static void
948 dump_dedup_ratio(const ddt_stat_t *dds)
949 {
950 double rL, rP, rD, D, dedup, compress, copies;
951
952 if (dds->dds_blocks == 0)
953 return;
954
955 rL = (double)dds->dds_ref_lsize;
956 rP = (double)dds->dds_ref_psize;
957 rD = (double)dds->dds_ref_dsize;
958 D = (double)dds->dds_dsize;
959
960 dedup = rD / D;
961 compress = rL / rP;
962 copies = rD / rP;
963
964 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
965 "dedup * compress / copies = %.2f\n\n",
966 dedup, compress, copies, dedup * compress / copies);
967 }
968
969 static void
970 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
971 {
972 char name[DDT_NAMELEN];
973 ddt_entry_t dde;
974 uint64_t walk = 0;
975 dmu_object_info_t doi;
976 uint64_t count, dspace, mspace;
977 int error;
978
979 error = ddt_object_info(ddt, type, class, &doi);
980
981 if (error == ENOENT)
982 return;
983 ASSERT(error == 0);
984
985 (void) ddt_object_count(ddt, type, class, &count);
986 if (count == 0)
987 return;
988
989 dspace = doi.doi_physical_blocks_512 << 9;
990 mspace = doi.doi_fill_count * doi.doi_data_block_size;
991
992 ddt_object_name(ddt, type, class, name);
993
994 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
995 name,
996 (u_longlong_t)count,
997 (u_longlong_t)(dspace / count),
998 (u_longlong_t)(mspace / count));
999
1000 if (dump_opt['D'] < 3)
1001 return;
1002
1003 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
1004
1005 if (dump_opt['D'] < 4)
1006 return;
1007
1008 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
1009 return;
1010
1011 (void) printf("%s contents:\n\n", name);
1012
1013 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
1014 dump_dde(ddt, &dde, walk);
1015
1016 ASSERT(error == ENOENT);
1017
1018 (void) printf("\n");
1019 }
1020
1021 static void
1022 dump_all_ddts(spa_t *spa)
1023 {
1024 ddt_histogram_t ddh_total;
1025 ddt_stat_t dds_total;
1026
1027 bzero(&ddh_total, sizeof (ddh_total));
1028 bzero(&dds_total, sizeof (dds_total));
1029
1030 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1031 ddt_t *ddt = spa->spa_ddt[c];
1032 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1033 for (enum ddt_class class = 0; class < DDT_CLASSES;
1034 class++) {
1035 dump_ddt(ddt, type, class);
1036 }
1037 }
1038 }
1039
1040 ddt_get_dedup_stats(spa, &dds_total);
1041
1042 if (dds_total.dds_blocks == 0) {
1043 (void) printf("All DDTs are empty\n");
1044 return;
1045 }
1046
1047 (void) printf("\n");
1048
1049 if (dump_opt['D'] > 1) {
1050 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1051 ddt_get_dedup_histogram(spa, &ddh_total);
1052 zpool_dump_ddt(&dds_total, &ddh_total);
1053 }
1054
1055 dump_dedup_ratio(&dds_total);
1056 }
1057
1058 static void
1059 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1060 {
1061 char *prefix = arg;
1062
1063 (void) printf("%s [%llu,%llu) length %llu\n",
1064 prefix,
1065 (u_longlong_t)start,
1066 (u_longlong_t)(start + size),
1067 (u_longlong_t)(size));
1068 }
1069
1070 static void
1071 dump_dtl(vdev_t *vd, int indent)
1072 {
1073 spa_t *spa = vd->vdev_spa;
1074 boolean_t required;
1075 const char *name[DTL_TYPES] = { "missing", "partial", "scrub",
1076 "outage" };
1077 char prefix[256];
1078
1079 spa_vdev_state_enter(spa, SCL_NONE);
1080 required = vdev_dtl_required(vd);
1081 (void) spa_vdev_state_exit(spa, NULL, 0);
1082
1083 if (indent == 0)
1084 (void) printf("\nDirty time logs:\n\n");
1085
1086 (void) printf("\t%*s%s [%s]\n", indent, "",
1087 vd->vdev_path ? vd->vdev_path :
1088 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1089 required ? "DTL-required" : "DTL-expendable");
1090
1091 for (int t = 0; t < DTL_TYPES; t++) {
1092 range_tree_t *rt = vd->vdev_dtl[t];
1093 if (range_tree_space(rt) == 0)
1094 continue;
1095 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1096 indent + 2, "", name[t]);
1097 mutex_enter(rt->rt_lock);
1098 range_tree_walk(rt, dump_dtl_seg, prefix);
1099 mutex_exit(rt->rt_lock);
1100 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1101 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1102 }
1103
1104 for (unsigned c = 0; c < vd->vdev_children; c++)
1105 dump_dtl(vd->vdev_child[c], indent + 4);
1106 }
1107
1108 static void
1109 dump_history(spa_t *spa)
1110 {
1111 nvlist_t **events = NULL;
1112 uint64_t resid, len, off = 0;
1113 uint64_t buflen;
1114 uint_t num = 0;
1115 int error;
1116 time_t tsec;
1117 struct tm t;
1118 char tbuf[30];
1119 char internalstr[MAXPATHLEN];
1120
1121 buflen = SPA_MAXBLOCKSIZE;
1122 char *buf = umem_alloc(buflen, UMEM_NOFAIL);
1123 do {
1124 len = buflen;
1125
1126 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1127 break;
1128 }
1129
1130 error = zpool_history_unpack(buf, len, &resid, &events, &num);
1131 if (error != 0) {
1132 break;
1133 }
1134
1135 off -= resid;
1136 if (resid == len) {
1137 umem_free(buf, buflen);
1138 buflen *= 2;
1139 buf = umem_alloc(buflen, UMEM_NOFAIL);
1140 if (buf == NULL) {
1141 (void) fprintf(stderr, "Unable to read history: %s\n",
1142 strerror(error));
1143 goto err;
1144 }
1145 }
1146 } while (len != 0);
1147 umem_free(buf, buflen);
1148
1149 if (error != 0) {
1150 (void) fprintf(stderr, "Unable to read history: %s\n",
1151 strerror(error));
1152 goto err;
1153 }
1154
1155 (void) printf("\nHistory:\n");
1156 for (unsigned i = 0; i < num; i++) {
1157 uint64_t time, txg, ievent;
1158 char *cmd, *intstr;
1159 boolean_t printed = B_FALSE;
1160
1161 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1162 &time) != 0)
1163 goto next;
1164 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1165 &cmd) != 0) {
1166 if (nvlist_lookup_uint64(events[i],
1167 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1168 goto next;
1169 verify(nvlist_lookup_uint64(events[i],
1170 ZPOOL_HIST_TXG, &txg) == 0);
1171 verify(nvlist_lookup_string(events[i],
1172 ZPOOL_HIST_INT_STR, &intstr) == 0);
1173 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1174 goto next;
1175
1176 (void) snprintf(internalstr,
1177 sizeof (internalstr),
1178 "[internal %s txg:%ju] %s",
1179 zfs_history_event_names[ievent], (uintmax_t)txg,
1180 intstr);
1181 cmd = internalstr;
1182 }
1183 tsec = time;
1184 (void) localtime_r(&tsec, &t);
1185 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1186 (void) printf("%s %s\n", tbuf, cmd);
1187 printed = B_TRUE;
1188
1189 next:
1190 if (dump_opt['h'] > 1) {
1191 if (!printed)
1192 (void) printf("unrecognized record:\n");
1193 dump_nvlist(events[i], 2);
1194 }
1195 }
1196 err:
1197 for (unsigned i = 0; i < num; i++) {
1198 nvlist_free(events[i]);
1199 }
1200 free(events);
1201 }
1202
1203 /*ARGSUSED*/
1204 static void
1205 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1206 {
1207 }
1208
1209 static uint64_t
1210 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1211 const zbookmark_phys_t *zb)
1212 {
1213 if (dnp == NULL) {
1214 ASSERT(zb->zb_level < 0);
1215 if (zb->zb_object == 0)
1216 return (zb->zb_blkid);
1217 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1218 }
1219
1220 ASSERT(zb->zb_level >= 0);
1221
1222 return ((zb->zb_blkid <<
1223 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1224 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1225 }
1226
1227 static void
1228 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1229 {
1230 const dva_t *dva = bp->blk_dva;
1231 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1232
1233 if (dump_opt['b'] >= 6) {
1234 snprintf_blkptr(blkbuf, buflen, bp);
1235 return;
1236 }
1237
1238 if (BP_IS_EMBEDDED(bp)) {
1239 (void) sprintf(blkbuf,
1240 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1241 (int)BPE_GET_ETYPE(bp),
1242 (u_longlong_t)BPE_GET_LSIZE(bp),
1243 (u_longlong_t)BPE_GET_PSIZE(bp),
1244 (u_longlong_t)bp->blk_birth);
1245 return;
1246 }
1247
1248 blkbuf[0] = '\0';
1249 for (int i = 0; i < ndvas; i++)
1250 (void) snprintf(blkbuf + strlen(blkbuf),
1251 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1252 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1253 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1254 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1255
1256 if (BP_IS_HOLE(bp)) {
1257 (void) snprintf(blkbuf + strlen(blkbuf),
1258 buflen - strlen(blkbuf),
1259 "%llxL B=%llu",
1260 (u_longlong_t)BP_GET_LSIZE(bp),
1261 (u_longlong_t)bp->blk_birth);
1262 } else {
1263 (void) snprintf(blkbuf + strlen(blkbuf),
1264 buflen - strlen(blkbuf),
1265 "%llxL/%llxP F=%llu B=%llu/%llu",
1266 (u_longlong_t)BP_GET_LSIZE(bp),
1267 (u_longlong_t)BP_GET_PSIZE(bp),
1268 (u_longlong_t)BP_GET_FILL(bp),
1269 (u_longlong_t)bp->blk_birth,
1270 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1271 }
1272 }
1273
1274 static void
1275 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1276 const dnode_phys_t *dnp)
1277 {
1278 char blkbuf[BP_SPRINTF_LEN];
1279 int l;
1280
1281 if (!BP_IS_EMBEDDED(bp)) {
1282 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1283 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1284 }
1285
1286 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1287
1288 ASSERT(zb->zb_level >= 0);
1289
1290 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1291 if (l == zb->zb_level) {
1292 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1293 } else {
1294 (void) printf(" ");
1295 }
1296 }
1297
1298 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1299 (void) printf("%s\n", blkbuf);
1300 }
1301
1302 static int
1303 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1304 blkptr_t *bp, const zbookmark_phys_t *zb)
1305 {
1306 int err = 0;
1307
1308 if (bp->blk_birth == 0)
1309 return (0);
1310
1311 print_indirect(bp, zb, dnp);
1312
1313 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1314 arc_flags_t flags = ARC_FLAG_WAIT;
1315 int i;
1316 blkptr_t *cbp;
1317 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1318 arc_buf_t *buf;
1319 uint64_t fill = 0;
1320
1321 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1322 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1323 if (err)
1324 return (err);
1325 ASSERT(buf->b_data);
1326
1327 /* recursively visit blocks below this */
1328 cbp = buf->b_data;
1329 for (i = 0; i < epb; i++, cbp++) {
1330 zbookmark_phys_t czb;
1331
1332 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1333 zb->zb_level - 1,
1334 zb->zb_blkid * epb + i);
1335 err = visit_indirect(spa, dnp, cbp, &czb);
1336 if (err)
1337 break;
1338 fill += BP_GET_FILL(cbp);
1339 }
1340 if (!err)
1341 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1342 arc_buf_destroy(buf, &buf);
1343 }
1344
1345 return (err);
1346 }
1347
1348 /*ARGSUSED*/
1349 static void
1350 dump_indirect(dnode_t *dn)
1351 {
1352 dnode_phys_t *dnp = dn->dn_phys;
1353 int j;
1354 zbookmark_phys_t czb;
1355
1356 (void) printf("Indirect blocks:\n");
1357
1358 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1359 dn->dn_object, dnp->dn_nlevels - 1, 0);
1360 for (j = 0; j < dnp->dn_nblkptr; j++) {
1361 czb.zb_blkid = j;
1362 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1363 &dnp->dn_blkptr[j], &czb);
1364 }
1365
1366 (void) printf("\n");
1367 }
1368
1369 /*ARGSUSED*/
1370 static void
1371 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1372 {
1373 dsl_dir_phys_t *dd = data;
1374 time_t crtime;
1375 char nice[32];
1376
1377 /* make sure nicenum has enough space */
1378 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ);
1379
1380 if (dd == NULL)
1381 return;
1382
1383 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1384
1385 crtime = dd->dd_creation_time;
1386 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1387 (void) printf("\t\thead_dataset_obj = %llu\n",
1388 (u_longlong_t)dd->dd_head_dataset_obj);
1389 (void) printf("\t\tparent_dir_obj = %llu\n",
1390 (u_longlong_t)dd->dd_parent_obj);
1391 (void) printf("\t\torigin_obj = %llu\n",
1392 (u_longlong_t)dd->dd_origin_obj);
1393 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1394 (u_longlong_t)dd->dd_child_dir_zapobj);
1395 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice));
1396 (void) printf("\t\tused_bytes = %s\n", nice);
1397 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice));
1398 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1399 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice));
1400 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1401 zdb_nicenum(dd->dd_quota, nice, sizeof (nice));
1402 (void) printf("\t\tquota = %s\n", nice);
1403 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice));
1404 (void) printf("\t\treserved = %s\n", nice);
1405 (void) printf("\t\tprops_zapobj = %llu\n",
1406 (u_longlong_t)dd->dd_props_zapobj);
1407 (void) printf("\t\tdeleg_zapobj = %llu\n",
1408 (u_longlong_t)dd->dd_deleg_zapobj);
1409 (void) printf("\t\tflags = %llx\n",
1410 (u_longlong_t)dd->dd_flags);
1411
1412 #define DO(which) \
1413 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \
1414 sizeof (nice)); \
1415 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1416 DO(HEAD);
1417 DO(SNAP);
1418 DO(CHILD);
1419 DO(CHILD_RSRV);
1420 DO(REFRSRV);
1421 #undef DO
1422 }
1423
1424 /*ARGSUSED*/
1425 static void
1426 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1427 {
1428 dsl_dataset_phys_t *ds = data;
1429 time_t crtime;
1430 char used[32], compressed[32], uncompressed[32], unique[32];
1431 char blkbuf[BP_SPRINTF_LEN];
1432
1433 /* make sure nicenum has enough space */
1434 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ);
1435 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ);
1436 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ);
1437 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ);
1438
1439 if (ds == NULL)
1440 return;
1441
1442 ASSERT(size == sizeof (*ds));
1443 crtime = ds->ds_creation_time;
1444 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used));
1445 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed));
1446 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed,
1447 sizeof (uncompressed));
1448 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique));
1449 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1450
1451 (void) printf("\t\tdir_obj = %llu\n",
1452 (u_longlong_t)ds->ds_dir_obj);
1453 (void) printf("\t\tprev_snap_obj = %llu\n",
1454 (u_longlong_t)ds->ds_prev_snap_obj);
1455 (void) printf("\t\tprev_snap_txg = %llu\n",
1456 (u_longlong_t)ds->ds_prev_snap_txg);
1457 (void) printf("\t\tnext_snap_obj = %llu\n",
1458 (u_longlong_t)ds->ds_next_snap_obj);
1459 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1460 (u_longlong_t)ds->ds_snapnames_zapobj);
1461 (void) printf("\t\tnum_children = %llu\n",
1462 (u_longlong_t)ds->ds_num_children);
1463 (void) printf("\t\tuserrefs_obj = %llu\n",
1464 (u_longlong_t)ds->ds_userrefs_obj);
1465 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1466 (void) printf("\t\tcreation_txg = %llu\n",
1467 (u_longlong_t)ds->ds_creation_txg);
1468 (void) printf("\t\tdeadlist_obj = %llu\n",
1469 (u_longlong_t)ds->ds_deadlist_obj);
1470 (void) printf("\t\tused_bytes = %s\n", used);
1471 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1472 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1473 (void) printf("\t\tunique = %s\n", unique);
1474 (void) printf("\t\tfsid_guid = %llu\n",
1475 (u_longlong_t)ds->ds_fsid_guid);
1476 (void) printf("\t\tguid = %llu\n",
1477 (u_longlong_t)ds->ds_guid);
1478 (void) printf("\t\tflags = %llx\n",
1479 (u_longlong_t)ds->ds_flags);
1480 (void) printf("\t\tnext_clones_obj = %llu\n",
1481 (u_longlong_t)ds->ds_next_clones_obj);
1482 (void) printf("\t\tprops_obj = %llu\n",
1483 (u_longlong_t)ds->ds_props_obj);
1484 (void) printf("\t\tbp = %s\n", blkbuf);
1485 }
1486
1487 /* ARGSUSED */
1488 static int
1489 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1490 {
1491 char blkbuf[BP_SPRINTF_LEN];
1492
1493 if (bp->blk_birth != 0) {
1494 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1495 (void) printf("\t%s\n", blkbuf);
1496 }
1497 return (0);
1498 }
1499
1500 static void
1501 dump_bptree(objset_t *os, uint64_t obj, const char *name)
1502 {
1503 char bytes[32];
1504 bptree_phys_t *bt;
1505 dmu_buf_t *db;
1506
1507 /* make sure nicenum has enough space */
1508 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1509
1510 if (dump_opt['d'] < 3)
1511 return;
1512
1513 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1514 bt = db->db_data;
1515 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes));
1516 (void) printf("\n %s: %llu datasets, %s\n",
1517 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1518 dmu_buf_rele(db, FTAG);
1519
1520 if (dump_opt['d'] < 5)
1521 return;
1522
1523 (void) printf("\n");
1524
1525 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1526 }
1527
1528 /* ARGSUSED */
1529 static int
1530 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1531 {
1532 char blkbuf[BP_SPRINTF_LEN];
1533
1534 ASSERT(bp->blk_birth != 0);
1535 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1536 (void) printf("\t%s\n", blkbuf);
1537 return (0);
1538 }
1539
1540 static void
1541 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent)
1542 {
1543 char bytes[32];
1544 char comp[32];
1545 char uncomp[32];
1546
1547 /* make sure nicenum has enough space */
1548 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1549 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1550 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1551
1552 if (dump_opt['d'] < 3)
1553 return;
1554
1555 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes));
1556 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1557 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp));
1558 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp));
1559 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1560 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1561 indent * 8, name,
1562 (u_longlong_t)bpo->bpo_object,
1563 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1564 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1565 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1566 bytes, comp, uncomp);
1567
1568 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1569 uint64_t subobj;
1570 bpobj_t subbpo;
1571 int error;
1572 VERIFY0(dmu_read(bpo->bpo_os,
1573 bpo->bpo_phys->bpo_subobjs,
1574 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1575 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1576 if (error != 0) {
1577 (void) printf("ERROR %u while trying to open "
1578 "subobj id %llu\n",
1579 error, (u_longlong_t)subobj);
1580 continue;
1581 }
1582 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1583 bpobj_close(&subbpo);
1584 }
1585 } else {
1586 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1587 indent * 8, name,
1588 (u_longlong_t)bpo->bpo_object,
1589 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1590 bytes);
1591 }
1592
1593 if (dump_opt['d'] < 5)
1594 return;
1595
1596
1597 if (indent == 0) {
1598 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1599 (void) printf("\n");
1600 }
1601 }
1602
1603 static void
1604 dump_deadlist(dsl_deadlist_t *dl)
1605 {
1606 dsl_deadlist_entry_t *dle;
1607 uint64_t unused;
1608 char bytes[32];
1609 char comp[32];
1610 char uncomp[32];
1611
1612 /* make sure nicenum has enough space */
1613 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1614 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1615 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1616
1617 if (dump_opt['d'] < 3)
1618 return;
1619
1620 if (dl->dl_oldfmt) {
1621 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1622 return;
1623 }
1624
1625 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes));
1626 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp));
1627 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp));
1628 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1629 bytes, comp, uncomp);
1630
1631 if (dump_opt['d'] < 4)
1632 return;
1633
1634 (void) printf("\n");
1635
1636 /* force the tree to be loaded */
1637 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1638
1639 for (dle = avl_first(&dl->dl_tree); dle;
1640 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1641 if (dump_opt['d'] >= 5) {
1642 char buf[128];
1643 (void) snprintf(buf, sizeof (buf),
1644 "mintxg %llu -> obj %llu",
1645 (longlong_t)dle->dle_mintxg,
1646 (longlong_t)dle->dle_bpobj.bpo_object);
1647
1648 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1649 } else {
1650 (void) printf("mintxg %llu -> obj %llu\n",
1651 (longlong_t)dle->dle_mintxg,
1652 (longlong_t)dle->dle_bpobj.bpo_object);
1653
1654 }
1655 }
1656 }
1657
1658 static avl_tree_t idx_tree;
1659 static avl_tree_t domain_tree;
1660 static boolean_t fuid_table_loaded;
1661 static objset_t *sa_os = NULL;
1662 static sa_attr_type_t *sa_attr_table = NULL;
1663
1664 static int
1665 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1666 {
1667 int err;
1668 uint64_t sa_attrs = 0;
1669 uint64_t version = 0;
1670
1671 VERIFY3P(sa_os, ==, NULL);
1672 err = dmu_objset_own(path, type, B_TRUE, tag, osp);
1673 if (err != 0) {
1674 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1675 strerror(err));
1676 return (err);
1677 }
1678
1679 if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
1680 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1681 8, 1, &version);
1682 if (version >= ZPL_VERSION_SA) {
1683 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1684 8, 1, &sa_attrs);
1685 }
1686 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1687 &sa_attr_table);
1688 if (err != 0) {
1689 (void) fprintf(stderr, "sa_setup failed: %s\n",
1690 strerror(err));
1691 dmu_objset_disown(*osp, tag);
1692 *osp = NULL;
1693 }
1694 }
1695 sa_os = *osp;
1696
1697 return (0);
1698 }
1699
1700 static void
1701 close_objset(objset_t *os, void *tag)
1702 {
1703 VERIFY3P(os, ==, sa_os);
1704 if (os->os_sa != NULL)
1705 sa_tear_down(os);
1706 dmu_objset_disown(os, tag);
1707 sa_attr_table = NULL;
1708 sa_os = NULL;
1709 }
1710
1711 static void
1712 fuid_table_destroy()
1713 {
1714 if (fuid_table_loaded) {
1715 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1716 fuid_table_loaded = B_FALSE;
1717 }
1718 }
1719
1720 /*
1721 * print uid or gid information.
1722 * For normal POSIX id just the id is printed in decimal format.
1723 * For CIFS files with FUID the fuid is printed in hex followed by
1724 * the domain-rid string.
1725 */
1726 static void
1727 print_idstr(uint64_t id, const char *id_type)
1728 {
1729 if (FUID_INDEX(id)) {
1730 char *domain;
1731
1732 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1733 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1734 (u_longlong_t)id, domain, (int)FUID_RID(id));
1735 } else {
1736 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1737 }
1738
1739 }
1740
1741 static void
1742 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1743 {
1744 uint32_t uid_idx, gid_idx;
1745
1746 uid_idx = FUID_INDEX(uid);
1747 gid_idx = FUID_INDEX(gid);
1748
1749 /* Load domain table, if not already loaded */
1750 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1751 uint64_t fuid_obj;
1752
1753 /* first find the fuid object. It lives in the master node */
1754 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1755 8, 1, &fuid_obj) == 0);
1756 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1757 (void) zfs_fuid_table_load(os, fuid_obj,
1758 &idx_tree, &domain_tree);
1759 fuid_table_loaded = B_TRUE;
1760 }
1761
1762 print_idstr(uid, "uid");
1763 print_idstr(gid, "gid");
1764 }
1765
1766 /*ARGSUSED*/
1767 static void
1768 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1769 {
1770 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1771 sa_handle_t *hdl;
1772 uint64_t xattr, rdev, gen;
1773 uint64_t uid, gid, mode, fsize, parent, links;
1774 uint64_t pflags;
1775 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1776 time_t z_crtime, z_atime, z_mtime, z_ctime;
1777 sa_bulk_attr_t bulk[12];
1778 int idx = 0;
1779 int error;
1780
1781 VERIFY3P(os, ==, sa_os);
1782 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1783 (void) printf("Failed to get handle for SA znode\n");
1784 return;
1785 }
1786
1787 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1788 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1789 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1790 &links, 8);
1791 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1792 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1793 &mode, 8);
1794 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1795 NULL, &parent, 8);
1796 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1797 &fsize, 8);
1798 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1799 acctm, 16);
1800 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1801 modtm, 16);
1802 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1803 crtm, 16);
1804 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1805 chgtm, 16);
1806 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1807 &pflags, 8);
1808
1809 if (sa_bulk_lookup(hdl, bulk, idx)) {
1810 (void) sa_handle_destroy(hdl);
1811 return;
1812 }
1813
1814 z_crtime = (time_t)crtm[0];
1815 z_atime = (time_t)acctm[0];
1816 z_mtime = (time_t)modtm[0];
1817 z_ctime = (time_t)chgtm[0];
1818
1819 if (dump_opt['d'] > 4) {
1820 error = zfs_obj_to_path(os, object, path, sizeof (path));
1821 if (error != 0) {
1822 (void) snprintf(path, sizeof (path),
1823 "\?\?\?<object#%llu>", (u_longlong_t)object);
1824 }
1825 (void) printf("\tpath %s\n", path);
1826 }
1827 dump_uidgid(os, uid, gid);
1828 (void) printf("\tatime %s", ctime(&z_atime));
1829 (void) printf("\tmtime %s", ctime(&z_mtime));
1830 (void) printf("\tctime %s", ctime(&z_ctime));
1831 (void) printf("\tcrtime %s", ctime(&z_crtime));
1832 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1833 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1834 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1835 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1836 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1837 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1838 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1839 sizeof (uint64_t)) == 0)
1840 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1841 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1842 sizeof (uint64_t)) == 0)
1843 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1844 sa_handle_destroy(hdl);
1845 }
1846
1847 /*ARGSUSED*/
1848 static void
1849 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1850 {
1851 }
1852
1853 /*ARGSUSED*/
1854 static void
1855 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1856 {
1857 }
1858
1859 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1860 dump_none, /* unallocated */
1861 dump_zap, /* object directory */
1862 dump_uint64, /* object array */
1863 dump_none, /* packed nvlist */
1864 dump_packed_nvlist, /* packed nvlist size */
1865 dump_none, /* bpobj */
1866 dump_bpobj, /* bpobj header */
1867 dump_none, /* SPA space map header */
1868 dump_none, /* SPA space map */
1869 dump_none, /* ZIL intent log */
1870 dump_dnode, /* DMU dnode */
1871 dump_dmu_objset, /* DMU objset */
1872 dump_dsl_dir, /* DSL directory */
1873 dump_zap, /* DSL directory child map */
1874 dump_zap, /* DSL dataset snap map */
1875 dump_zap, /* DSL props */
1876 dump_dsl_dataset, /* DSL dataset */
1877 dump_znode, /* ZFS znode */
1878 dump_acl, /* ZFS V0 ACL */
1879 dump_uint8, /* ZFS plain file */
1880 dump_zpldir, /* ZFS directory */
1881 dump_zap, /* ZFS master node */
1882 dump_zap, /* ZFS delete queue */
1883 dump_uint8, /* zvol object */
1884 dump_zap, /* zvol prop */
1885 dump_uint8, /* other uint8[] */
1886 dump_uint64, /* other uint64[] */
1887 dump_zap, /* other ZAP */
1888 dump_zap, /* persistent error log */
1889 dump_uint8, /* SPA history */
1890 dump_history_offsets, /* SPA history offsets */
1891 dump_zap, /* Pool properties */
1892 dump_zap, /* DSL permissions */
1893 dump_acl, /* ZFS ACL */
1894 dump_uint8, /* ZFS SYSACL */
1895 dump_none, /* FUID nvlist */
1896 dump_packed_nvlist, /* FUID nvlist size */
1897 dump_zap, /* DSL dataset next clones */
1898 dump_zap, /* DSL scrub queue */
1899 dump_zap, /* ZFS user/group used */
1900 dump_zap, /* ZFS user/group quota */
1901 dump_zap, /* snapshot refcount tags */
1902 dump_ddt_zap, /* DDT ZAP object */
1903 dump_zap, /* DDT statistics */
1904 dump_znode, /* SA object */
1905 dump_zap, /* SA Master Node */
1906 dump_sa_attrs, /* SA attribute registration */
1907 dump_sa_layouts, /* SA attribute layouts */
1908 dump_zap, /* DSL scrub translations */
1909 dump_none, /* fake dedup BP */
1910 dump_zap, /* deadlist */
1911 dump_none, /* deadlist hdr */
1912 dump_zap, /* dsl clones */
1913 dump_bpobj_subobjs, /* bpobj subobjs */
1914 dump_unknown, /* Unknown type, must be last */
1915 };
1916
1917 static void
1918 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1919 {
1920 dmu_buf_t *db = NULL;
1921 dmu_object_info_t doi;
1922 dnode_t *dn;
1923 void *bonus = NULL;
1924 size_t bsize = 0;
1925 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1926 char bonus_size[32];
1927 char aux[50];
1928 int error;
1929
1930 /* make sure nicenum has enough space */
1931 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ);
1932 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ);
1933 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
1934 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
1935 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
1936
1937 if (*print_header) {
1938 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1939 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1940 "%full", "type");
1941 *print_header = 0;
1942 }
1943
1944 if (object == 0) {
1945 dn = DMU_META_DNODE(os);
1946 } else {
1947 error = dmu_bonus_hold(os, object, FTAG, &db);
1948 if (error)
1949 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1950 object, error);
1951 bonus = db->db_data;
1952 bsize = db->db_size;
1953 dn = DB_DNODE((dmu_buf_impl_t *)db);
1954 }
1955 dmu_object_info_from_dnode(dn, &doi);
1956
1957 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
1958 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
1959 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
1960 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
1961 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
1962 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1963 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1964 doi.doi_max_offset);
1965
1966 aux[0] = '\0';
1967
1968 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1969 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1970 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1971 }
1972
1973 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1974 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1975 ZDB_COMPRESS_NAME(doi.doi_compress));
1976 }
1977
1978 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1979 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1980 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1981
1982 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1983 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1984 "", "", "", "", "", bonus_size, "bonus",
1985 ZDB_OT_NAME(doi.doi_bonus_type));
1986 }
1987
1988 if (verbosity >= 4) {
1989 (void) printf("\tdnode flags: %s%s%s\n",
1990 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1991 "USED_BYTES " : "",
1992 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1993 "USERUSED_ACCOUNTED " : "",
1994 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1995 "SPILL_BLKPTR" : "");
1996 (void) printf("\tdnode maxblkid: %llu\n",
1997 (longlong_t)dn->dn_phys->dn_maxblkid);
1998
1999 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
2000 bonus, bsize);
2001 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
2002 *print_header = 1;
2003 }
2004
2005 if (verbosity >= 5)
2006 dump_indirect(dn);
2007
2008 if (verbosity >= 5) {
2009 /*
2010 * Report the list of segments that comprise the object.
2011 */
2012 uint64_t start = 0;
2013 uint64_t end;
2014 uint64_t blkfill = 1;
2015 int minlvl = 1;
2016
2017 if (dn->dn_type == DMU_OT_DNODE) {
2018 minlvl = 0;
2019 blkfill = DNODES_PER_BLOCK;
2020 }
2021
2022 for (;;) {
2023 char segsize[32];
2024 /* make sure nicenum has enough space */
2025 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ);
2026 error = dnode_next_offset(dn,
2027 0, &start, minlvl, blkfill, 0);
2028 if (error)
2029 break;
2030 end = start;
2031 error = dnode_next_offset(dn,
2032 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
2033 zdb_nicenum(end - start, segsize, sizeof (segsize));
2034 (void) printf("\t\tsegment [%016llx, %016llx)"
2035 " size %5s\n", (u_longlong_t)start,
2036 (u_longlong_t)end, segsize);
2037 if (error)
2038 break;
2039 start = end;
2040 }
2041 }
2042
2043 if (db != NULL)
2044 dmu_buf_rele(db, FTAG);
2045 }
2046
2047 static const char *objset_types[DMU_OST_NUMTYPES] = {
2048 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
2049
2050 static void
2051 dump_dir(objset_t *os)
2052 {
2053 dmu_objset_stats_t dds;
2054 uint64_t object, object_count;
2055 uint64_t refdbytes, usedobjs, scratch;
2056 char numbuf[32];
2057 char blkbuf[BP_SPRINTF_LEN + 20];
2058 char osname[ZFS_MAX_DATASET_NAME_LEN];
2059 const char *type = "UNKNOWN";
2060 int verbosity = dump_opt['d'];
2061 int print_header = 1;
2062 unsigned i;
2063 int error;
2064
2065 /* make sure nicenum has enough space */
2066 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
2067
2068 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
2069 dmu_objset_fast_stat(os, &dds);
2070 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
2071
2072 if (dds.dds_type < DMU_OST_NUMTYPES)
2073 type = objset_types[dds.dds_type];
2074
2075 if (dds.dds_type == DMU_OST_META) {
2076 dds.dds_creation_txg = TXG_INITIAL;
2077 usedobjs = BP_GET_FILL(os->os_rootbp);
2078 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
2079 dd_used_bytes;
2080 } else {
2081 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
2082 }
2083
2084 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
2085
2086 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf));
2087
2088 if (verbosity >= 4) {
2089 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
2090 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2091 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2092 } else {
2093 blkbuf[0] = '\0';
2094 }
2095
2096 dmu_objset_name(os, osname);
2097
2098 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2099 "%s, %llu objects%s\n",
2100 osname, type, (u_longlong_t)dmu_objset_id(os),
2101 (u_longlong_t)dds.dds_creation_txg,
2102 numbuf, (u_longlong_t)usedobjs, blkbuf);
2103
2104 if (zopt_objects != 0) {
2105 for (i = 0; i < zopt_objects; i++)
2106 dump_object(os, zopt_object[i], verbosity,
2107 &print_header);
2108 (void) printf("\n");
2109 return;
2110 }
2111
2112 if (dump_opt['i'] != 0 || verbosity >= 2)
2113 dump_intent_log(dmu_objset_zil(os));
2114
2115 if (dmu_objset_ds(os) != NULL)
2116 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
2117
2118 if (verbosity < 2)
2119 return;
2120
2121 if (BP_IS_HOLE(os->os_rootbp))
2122 return;
2123
2124 dump_object(os, 0, verbosity, &print_header);
2125 object_count = 0;
2126 if (DMU_USERUSED_DNODE(os) != NULL &&
2127 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2128 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2129 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2130 }
2131
2132 object = 0;
2133 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2134 dump_object(os, object, verbosity, &print_header);
2135 object_count++;
2136 }
2137
2138 ASSERT3U(object_count, ==, usedobjs);
2139
2140 (void) printf("\n");
2141
2142 if (error != ESRCH) {
2143 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2144 abort();
2145 }
2146 }
2147
2148 static void
2149 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2150 {
2151 time_t timestamp = ub->ub_timestamp;
2152
2153 (void) printf("%s", header ? header : "");
2154 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2155 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2156 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2157 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2158 (void) printf("\ttimestamp = %llu UTC = %s",
2159 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
2160 if (dump_opt['u'] >= 3) {
2161 char blkbuf[BP_SPRINTF_LEN];
2162 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2163 (void) printf("\trootbp = %s\n", blkbuf);
2164 }
2165 (void) printf("%s", footer ? footer : "");
2166 }
2167
2168 static void
2169 dump_config(spa_t *spa)
2170 {
2171 dmu_buf_t *db;
2172 size_t nvsize = 0;
2173 int error = 0;
2174
2175
2176 error = dmu_bonus_hold(spa->spa_meta_objset,
2177 spa->spa_config_object, FTAG, &db);
2178
2179 if (error == 0) {
2180 nvsize = *(uint64_t *)db->db_data;
2181 dmu_buf_rele(db, FTAG);
2182
2183 (void) printf("\nMOS Configuration:\n");
2184 dump_packed_nvlist(spa->spa_meta_objset,
2185 spa->spa_config_object, (void *)&nvsize, 1);
2186 } else {
2187 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2188 (u_longlong_t)spa->spa_config_object, error);
2189 }
2190 }
2191
2192 static void
2193 dump_cachefile(const char *cachefile)
2194 {
2195 int fd;
2196 struct stat64 statbuf;
2197 char *buf;
2198 nvlist_t *config;
2199
2200 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2201 (void) printf("cannot open '%s': %s\n", cachefile,
2202 strerror(errno));
2203 exit(1);
2204 }
2205
2206 if (fstat64(fd, &statbuf) != 0) {
2207 (void) printf("failed to stat '%s': %s\n", cachefile,
2208 strerror(errno));
2209 exit(1);
2210 }
2211
2212 if ((buf = malloc(statbuf.st_size)) == NULL) {
2213 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2214 (u_longlong_t)statbuf.st_size);
2215 exit(1);
2216 }
2217
2218 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2219 (void) fprintf(stderr, "failed to read %llu bytes\n",
2220 (u_longlong_t)statbuf.st_size);
2221 exit(1);
2222 }
2223
2224 (void) close(fd);
2225
2226 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2227 (void) fprintf(stderr, "failed to unpack nvlist\n");
2228 exit(1);
2229 }
2230
2231 free(buf);
2232
2233 dump_nvlist(config, 0);
2234
2235 nvlist_free(config);
2236 }
2237
2238 #define ZDB_MAX_UB_HEADER_SIZE 32
2239
2240 static void
2241 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2242 {
2243 vdev_t vd;
2244 vdev_t *vdp = &vd;
2245 char header[ZDB_MAX_UB_HEADER_SIZE];
2246
2247 vd.vdev_ashift = ashift;
2248 vdp->vdev_top = vdp;
2249
2250 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2251 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2252 uberblock_t *ub = (void *)((char *)lbl + uoff);
2253
2254 if (uberblock_verify(ub))
2255 continue;
2256 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2257 "Uberblock[%d]\n", i);
2258 dump_uberblock(ub, header, "");
2259 }
2260 }
2261
2262 static char curpath[PATH_MAX];
2263
2264 /*
2265 * Iterate through the path components, recursively passing
2266 * current one's obj and remaining path until we find the obj
2267 * for the last one.
2268 */
2269 static int
2270 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2271 {
2272 int err;
2273 int header = 1;
2274 uint64_t child_obj;
2275 char *s;
2276 dmu_buf_t *db;
2277 dmu_object_info_t doi;
2278
2279 if ((s = strchr(name, '/')) != NULL)
2280 *s = '\0';
2281 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2282
2283 (void) strlcat(curpath, name, sizeof (curpath));
2284
2285 if (err != 0) {
2286 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2287 curpath, strerror(err));
2288 return (err);
2289 }
2290
2291 child_obj = ZFS_DIRENT_OBJ(child_obj);
2292 err = sa_buf_hold(os, child_obj, FTAG, &db);
2293 if (err != 0) {
2294 (void) fprintf(stderr,
2295 "failed to get SA dbuf for obj %llu: %s\n",
2296 (u_longlong_t)child_obj, strerror(err));
2297 return (EINVAL);
2298 }
2299 dmu_object_info_from_db(db, &doi);
2300 sa_buf_rele(db, FTAG);
2301
2302 if (doi.doi_bonus_type != DMU_OT_SA &&
2303 doi.doi_bonus_type != DMU_OT_ZNODE) {
2304 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2305 doi.doi_bonus_type, (u_longlong_t)child_obj);
2306 return (EINVAL);
2307 }
2308
2309 if (dump_opt['v'] > 6) {
2310 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2311 (u_longlong_t)child_obj, curpath, doi.doi_type,
2312 doi.doi_bonus_type);
2313 }
2314
2315 (void) strlcat(curpath, "/", sizeof (curpath));
2316
2317 switch (doi.doi_type) {
2318 case DMU_OT_DIRECTORY_CONTENTS:
2319 if (s != NULL && *(s + 1) != '\0')
2320 return (dump_path_impl(os, child_obj, s + 1));
2321 /*FALLTHROUGH*/
2322 case DMU_OT_PLAIN_FILE_CONTENTS:
2323 dump_object(os, child_obj, dump_opt['v'], &header);
2324 return (0);
2325 default:
2326 (void) fprintf(stderr, "object %llu has non-file/directory "
2327 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2328 break;
2329 }
2330
2331 return (EINVAL);
2332 }
2333
2334 /*
2335 * Dump the blocks for the object specified by path inside the dataset.
2336 */
2337 static int
2338 dump_path(char *ds, char *path)
2339 {
2340 int err;
2341 objset_t *os;
2342 uint64_t root_obj;
2343
2344 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2345 if (err != 0)
2346 return (err);
2347
2348 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2349 if (err != 0) {
2350 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2351 strerror(err));
2352 dmu_objset_disown(os, FTAG);
2353 return (EINVAL);
2354 }
2355
2356 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2357
2358 err = dump_path_impl(os, root_obj, path);
2359
2360 close_objset(os, FTAG);
2361 return (err);
2362 }
2363
2364 static int
2365 dump_label(const char *dev)
2366 {
2367 int fd;
2368 vdev_label_t label;
2369 char path[MAXPATHLEN];
2370 char *buf = label.vl_vdev_phys.vp_nvlist;
2371 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2372 struct stat64 statbuf;
2373 uint64_t psize, ashift;
2374 boolean_t label_found = B_FALSE;
2375
2376 (void) strlcpy(path, dev, sizeof (path));
2377 if (dev[0] == '/') {
2378 if (strncmp(dev, ZFS_DISK_ROOTD,
2379 strlen(ZFS_DISK_ROOTD)) == 0) {
2380 (void) snprintf(path, sizeof (path), "%s%s",
2381 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD));
2382 }
2383 } else if (stat64(path, &statbuf) != 0) {
2384 char *s;
2385
2386 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD,
2387 dev);
2388 if (((s = strrchr(dev, 's')) == NULL &&
2389 (s = strchr(dev, 'p')) == NULL) ||
2390 !isdigit(*(s + 1)))
2391 (void) strlcat(path, "s0", sizeof (path));
2392 }
2393
2394 if ((fd = open64(path, O_RDONLY)) < 0) {
2395 (void) fprintf(stderr, "cannot open '%s': %s\n", path,
2396 strerror(errno));
2397 exit(1);
2398 }
2399
2400 if (fstat64(fd, &statbuf) != 0) {
2401 (void) fprintf(stderr, "failed to stat '%s': %s\n", path,
2402 strerror(errno));
2403 (void) close(fd);
2404 exit(1);
2405 }
2406
2407 if (S_ISBLK(statbuf.st_mode)) {
2408 (void) fprintf(stderr,
2409 "cannot use '%s': character device required\n", path);
2410 (void) close(fd);
2411 exit(1);
2412 }
2413
2414 psize = statbuf.st_size;
2415 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2416
2417 for (int l = 0; l < VDEV_LABELS; l++) {
2418 nvlist_t *config = NULL;
2419
2420 if (!dump_opt['q']) {
2421 (void) printf("------------------------------------\n");
2422 (void) printf("LABEL %d\n", l);
2423 (void) printf("------------------------------------\n");
2424 }
2425
2426 if (pread64(fd, &label, sizeof (label),
2427 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2428 if (!dump_opt['q'])
2429 (void) printf("failed to read label %d\n", l);
2430 continue;
2431 }
2432
2433 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2434 if (!dump_opt['q'])
2435 (void) printf("failed to unpack label %d\n", l);
2436 ashift = SPA_MINBLOCKSHIFT;
2437 } else {
2438 nvlist_t *vdev_tree = NULL;
2439
2440 if (!dump_opt['q'])
2441 dump_nvlist(config, 4);
2442 if ((nvlist_lookup_nvlist(config,
2443 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2444 (nvlist_lookup_uint64(vdev_tree,
2445 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2446 ashift = SPA_MINBLOCKSHIFT;
2447 nvlist_free(config);
2448 label_found = B_TRUE;
2449 }
2450 if (dump_opt['u'])
2451 dump_label_uberblocks(&label, ashift);
2452 }
2453
2454 (void) close(fd);
2455
2456 return (label_found ? 0 : 2);
2457 }
2458
2459 static uint64_t dataset_feature_count[SPA_FEATURES];
2460
2461 /*ARGSUSED*/
2462 static int
2463 dump_one_dir(const char *dsname, void *arg)
2464 {
2465 int error;
2466 objset_t *os;
2467
2468 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
2469 if (error != 0)
2470 return (0);
2471
2472 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2473 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2474 continue;
2475 ASSERT(spa_feature_table[f].fi_flags &
2476 ZFEATURE_FLAG_PER_DATASET);
2477 dataset_feature_count[f]++;
2478 }
2479
2480 dump_dir(os);
2481 close_objset(os, FTAG);
2482 fuid_table_destroy();
2483 return (0);
2484 }
2485
2486 /*
2487 * Block statistics.
2488 */
2489 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2490 typedef struct zdb_blkstats {
2491 uint64_t zb_asize;
2492 uint64_t zb_lsize;
2493 uint64_t zb_psize;
2494 uint64_t zb_count;
2495 uint64_t zb_gangs;
2496 uint64_t zb_ditto_samevdev;
2497 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2498 } zdb_blkstats_t;
2499
2500 /*
2501 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2502 */
2503 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2504 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2505 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2506 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2507
2508 static const char *zdb_ot_extname[] = {
2509 "deferred free",
2510 "dedup ditto",
2511 "other",
2512 "Total",
2513 };
2514
2515 #define ZB_TOTAL DN_MAX_LEVELS
2516
2517 typedef struct zdb_cb {
2518 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2519 uint64_t zcb_dedup_asize;
2520 uint64_t zcb_dedup_blocks;
2521 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2522 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2523 [BPE_PAYLOAD_SIZE];
2524 uint64_t zcb_start;
2525 hrtime_t zcb_lastprint;
2526 uint64_t zcb_totalasize;
2527 uint64_t zcb_errors[256];
2528 int zcb_readfails;
2529 int zcb_haderrors;
2530 spa_t *zcb_spa;
2531 } zdb_cb_t;
2532
2533 static void
2534 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2535 dmu_object_type_t type)
2536 {
2537 uint64_t refcnt = 0;
2538
2539 ASSERT(type < ZDB_OT_TOTAL);
2540
2541 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2542 return;
2543
2544 for (int i = 0; i < 4; i++) {
2545 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2546 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2547 int equal;
2548 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2549
2550 zb->zb_asize += BP_GET_ASIZE(bp);
2551 zb->zb_lsize += BP_GET_LSIZE(bp);
2552 zb->zb_psize += BP_GET_PSIZE(bp);
2553 zb->zb_count++;
2554
2555 /*
2556 * The histogram is only big enough to record blocks up to
2557 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2558 * "other", bucket.
2559 */
2560 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2561 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2562 zb->zb_psize_histogram[idx]++;
2563
2564 zb->zb_gangs += BP_COUNT_GANG(bp);
2565
2566 switch (BP_GET_NDVAS(bp)) {
2567 case 2:
2568 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2569 DVA_GET_VDEV(&bp->blk_dva[1]))
2570 zb->zb_ditto_samevdev++;
2571 break;
2572 case 3:
2573 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2574 DVA_GET_VDEV(&bp->blk_dva[1])) +
2575 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2576 DVA_GET_VDEV(&bp->blk_dva[2])) +
2577 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2578 DVA_GET_VDEV(&bp->blk_dva[2]));
2579 if (equal != 0)
2580 zb->zb_ditto_samevdev++;
2581 break;
2582 }
2583
2584 }
2585
2586 if (BP_IS_EMBEDDED(bp)) {
2587 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2588 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2589 [BPE_GET_PSIZE(bp)]++;
2590 return;
2591 }
2592
2593 if (dump_opt['L'])
2594 return;
2595
2596 if (BP_GET_DEDUP(bp)) {
2597 ddt_t *ddt;
2598 ddt_entry_t *dde;
2599
2600 ddt = ddt_select(zcb->zcb_spa, bp);
2601 dde = ddt_lookup(ddt, bp, B_FALSE);
2602
2603 if (dde == NULL) {
2604 refcnt = 0;
2605 } else {
2606 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2607
2608 /* no other competitors for dde */
2609 dde_exit(dde);
2610
2611 ddt_phys_decref(ddp);
2612 refcnt = ddp->ddp_refcnt;
2613 if (ddt_phys_total_refcnt(dde) == 0)
2614 ddt_remove(ddt, dde);
2615 }
2616 }
2617
2618 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2619 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2620 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2621 }
2622
2623 static void
2624 zdb_blkptr_done(zio_t *zio)
2625 {
2626 spa_t *spa = zio->io_spa;
2627 blkptr_t *bp = zio->io_bp;
2628 int ioerr = zio->io_error;
2629 zdb_cb_t *zcb = zio->io_private;
2630 zbookmark_phys_t *zb = &zio->io_bookmark;
2631
2632 abd_free(zio->io_abd);
2633
2634 mutex_enter(&spa->spa_scrub_lock);
2635 spa->spa_scrub_inflight--;
2636 cv_broadcast(&spa->spa_scrub_io_cv);
2637
2638 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2639 char blkbuf[BP_SPRINTF_LEN];
2640
2641 zcb->zcb_haderrors = 1;
2642 zcb->zcb_errors[ioerr]++;
2643
2644 if (dump_opt['b'] >= 2)
2645 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2646 else
2647 blkbuf[0] = '\0';
2648
2649 (void) printf("zdb_blkptr_cb: "
2650 "Got error %d reading "
2651 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2652 ioerr,
2653 (u_longlong_t)zb->zb_objset,
2654 (u_longlong_t)zb->zb_object,
2655 (u_longlong_t)zb->zb_level,
2656 (u_longlong_t)zb->zb_blkid,
2657 blkbuf);
2658 }
2659 mutex_exit(&spa->spa_scrub_lock);
2660 }
2661
2662 static int
2663 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2664 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2665 {
2666 zdb_cb_t *zcb = arg;
2667 dmu_object_type_t type;
2668 boolean_t is_metadata;
2669
2670 if (bp == NULL)
2671 return (0);
2672
2673 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2674 char blkbuf[BP_SPRINTF_LEN];
2675 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2676 (void) printf("objset %llu object %llu "
2677 "level %lld offset 0x%llx %s\n",
2678 (u_longlong_t)zb->zb_objset,
2679 (u_longlong_t)zb->zb_object,
2680 (longlong_t)zb->zb_level,
2681 (u_longlong_t)blkid2offset(dnp, bp, zb),
2682 blkbuf);
2683 }
2684
2685 if (BP_IS_HOLE(bp))
2686 return (0);
2687
2688 type = BP_GET_TYPE(bp);
2689
2690 zdb_count_block(zcb, zilog, bp,
2691 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2692
2693 is_metadata = BP_IS_METADATA(bp);
2694
2695 if (!BP_IS_EMBEDDED(bp) &&
2696 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2697 size_t size = BP_GET_PSIZE(bp);
2698 abd_t *abd = abd_alloc(size, B_FALSE);
2699 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2700
2701 /* If it's an intent log block, failure is expected. */
2702 if (zb->zb_level == ZB_ZIL_LEVEL)
2703 flags |= ZIO_FLAG_SPECULATIVE;
2704
2705 mutex_enter(&spa->spa_scrub_lock);
2706 while (spa->spa_scrub_inflight > max_inflight)
2707 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2708 spa->spa_scrub_inflight++;
2709 mutex_exit(&spa->spa_scrub_lock);
2710
2711 zio_nowait(zio_read(NULL, spa, bp, abd, size,
2712 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2713 }
2714
2715 zcb->zcb_readfails = 0;
2716
2717 /* only call gethrtime() every 100 blocks */
2718 static int iters;
2719 if (++iters > 100)
2720 iters = 0;
2721 else
2722 return (0);
2723
2724 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2725 uint64_t now = gethrtime();
2726 char buf[10];
2727 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2728 int kb_per_sec =
2729 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2730 int sec_remaining =
2731 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2732
2733 /* make sure nicenum has enough space */
2734 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ);
2735
2736 zfs_nicenum(bytes, buf, sizeof (buf));
2737 (void) fprintf(stderr,
2738 "\r%5s completed (%4dMB/s) "
2739 "estimated time remaining: %uhr %02umin %02usec ",
2740 buf, kb_per_sec / 1024,
2741 sec_remaining / 60 / 60,
2742 sec_remaining / 60 % 60,
2743 sec_remaining % 60);
2744
2745 zcb->zcb_lastprint = now;
2746 }
2747
2748 return (0);
2749 }
2750
2751 static void
2752 zdb_leak(void *arg, uint64_t start, uint64_t size)
2753 {
2754 vdev_t *vd = arg;
2755
2756 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2757 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2758 }
2759
2760 static metaslab_ops_t zdb_metaslab_ops = {
2761 NULL /* alloc */
2762 };
2763
2764 static void
2765 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2766 {
2767 ddt_bookmark_t ddb;
2768 ddt_entry_t dde;
2769 int error;
2770
2771 bzero(&ddb, sizeof (ddb));
2772 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2773 blkptr_t blk;
2774 ddt_phys_t *ddp = dde.dde_phys;
2775
2776 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2777 return;
2778
2779 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2780
2781 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2782 if (ddp->ddp_phys_birth == 0)
2783 continue;
2784 ddt_bp_create(ddb.ddb_checksum,
2785 &dde.dde_key, ddp, &blk);
2786 if (p == DDT_PHYS_DITTO) {
2787 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2788 } else {
2789 zcb->zcb_dedup_asize +=
2790 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2791 zcb->zcb_dedup_blocks++;
2792 }
2793 }
2794 if (!dump_opt['L']) {
2795 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2796 ddt_entry_t *dde;
2797 VERIFY((dde = ddt_lookup(ddt, &blk, B_TRUE)) != NULL);
2798 dde_exit(dde);
2799 }
2800 }
2801
2802 ASSERT(error == ENOENT);
2803 }
2804
2805 static void
2806 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2807 {
2808 zcb->zcb_spa = spa;
2809
2810 if (!dump_opt['L']) {
2811 vdev_t *rvd = spa->spa_root_vdev;
2812
2813 /*
2814 * We are going to be changing the meaning of the metaslab's
2815 * ms_tree. Ensure that the allocator doesn't try to
2816 * use the tree.
2817 */
2818 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
2819 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
2820
2821 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
2822 vdev_t *vd = rvd->vdev_child[c];
2823 metaslab_group_t *mg = vd->vdev_mg;
2824 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
2825 metaslab_t *msp = vd->vdev_ms[m];
2826 ASSERT3P(msp->ms_group, ==, mg);
2827 mutex_enter(&msp->ms_lock);
2828 metaslab_unload(msp);
2829
2830 /*
2831 * For leak detection, we overload the metaslab
2832 * ms_tree to contain allocated segments
2833 * instead of free segments. As a result,
2834 * we can't use the normal metaslab_load/unload
2835 * interfaces.
2836 */
2837 if (msp->ms_sm != NULL) {
2838 (void) fprintf(stderr,
2839 "\rloading space map for "
2840 "vdev %llu of %llu, "
2841 "metaslab %llu of %llu ...",
2842 (longlong_t)c,
2843 (longlong_t)rvd->vdev_children,
2844 (longlong_t)m,
2845 (longlong_t)vd->vdev_ms_count);
2846
2847 /*
2848 * We don't want to spend the CPU
2849 * manipulating the size-ordered
2850 * tree, so clear the range_tree
2851 * ops.
2852 */
2853 msp->ms_tree->rt_ops = NULL;
2854 VERIFY0(space_map_load(msp->ms_sm,
2855 msp->ms_tree, SM_ALLOC));
2856
2857 if (!msp->ms_loaded) {
2858 msp->ms_loaded = B_TRUE;
2859 }
2860 }
2861 mutex_exit(&msp->ms_lock);
2862 }
2863 }
2864 (void) fprintf(stderr, "\n");
2865 }
2866
2867 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2868
2869 zdb_ddt_leak_init(spa, zcb);
2870
2871 spa_config_exit(spa, SCL_CONFIG, FTAG);
2872 }
2873
2874 static void
2875 zdb_leak_fini(spa_t *spa)
2876 {
2877 if (!dump_opt['L']) {
2878 vdev_t *rvd = spa->spa_root_vdev;
2879 for (unsigned c = 0; c < rvd->vdev_children; c++) {
2880 vdev_t *vd = rvd->vdev_child[c];
2881 metaslab_group_t *mg = vd->vdev_mg;
2882 for (unsigned m = 0; m < vd->vdev_ms_count; m++) {
2883 metaslab_t *msp = vd->vdev_ms[m];
2884 ASSERT3P(mg, ==, msp->ms_group);
2885 mutex_enter(&msp->ms_lock);
2886
2887 /*
2888 * The ms_tree has been overloaded to
2889 * contain allocated segments. Now that we
2890 * finished traversing all blocks, any
2891 * block that remains in the ms_tree
2892 * represents an allocated block that we
2893 * did not claim during the traversal.
2894 * Claimed blocks would have been removed
2895 * from the ms_tree.
2896 */
2897 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2898
2899 if (msp->ms_loaded) {
2900 msp->ms_loaded = B_FALSE;
2901 }
2902
2903 mutex_exit(&msp->ms_lock);
2904 }
2905 }
2906 }
2907 }
2908
2909 /* ARGSUSED */
2910 static int
2911 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2912 {
2913 zdb_cb_t *zcb = arg;
2914
2915 if (dump_opt['b'] >= 5) {
2916 char blkbuf[BP_SPRINTF_LEN];
2917 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2918 (void) printf("[%s] %s\n",
2919 "deferred free", blkbuf);
2920 }
2921 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2922 return (0);
2923 }
2924
2925 static int
2926 dump_block_stats(spa_t *spa)
2927 {
2928 zdb_cb_t zcb;
2929 zdb_blkstats_t *zb, *tzb;
2930 uint64_t norm_alloc, spec_alloc, norm_space, total_alloc, total_found;
2931 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2932 boolean_t leaks = B_FALSE;
2933
2934 bzero(&zcb, sizeof (zcb));
2935 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2936 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2937 (dump_opt['c'] == 1) ? "metadata " : "",
2938 dump_opt['c'] ? "checksums " : "",
2939 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2940 !dump_opt['L'] ? "nothing leaked " : "");
2941
2942 /*
2943 * Load all space maps as SM_ALLOC maps, then traverse the pool
2944 * claiming each block we discover. If the pool is perfectly
2945 * consistent, the space maps will be empty when we're done.
2946 * Anything left over is a leak; any block we can't claim (because
2947 * it's not part of any space map) is a double allocation,
2948 * reference to a freed block, or an unclaimed log block.
2949 */
2950 zdb_leak_init(spa, &zcb);
2951
2952 /*
2953 * If there's a deferred-free bplist, process that first.
2954 */
2955 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2956 count_block_cb, &zcb, NULL);
2957 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2958 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2959 count_block_cb, &zcb, NULL);
2960 }
2961 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2962 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2963 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2964 &zcb, NULL));
2965 }
2966
2967 if (dump_opt['c'] > 1)
2968 flags |= TRAVERSE_PREFETCH_DATA;
2969
2970 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2971 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2972 zcb.zcb_haderrors |= traverse_pool(spa, 0, UINT64_MAX,
2973 flags, zdb_blkptr_cb, &zcb, NULL);
2974
2975 /*
2976 * If we've traversed the data blocks then we need to wait for those
2977 * I/Os to complete. We leverage "The Godfather" zio to wait on
2978 * all async I/Os to complete.
2979 */
2980 if (dump_opt['c']) {
2981 for (int i = 0; i < max_ncpus; i++) {
2982 (void) zio_wait(spa->spa_async_zio_root[i]);
2983 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
2984 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2985 ZIO_FLAG_GODFATHER);
2986 }
2987 }
2988
2989 if (zcb.zcb_haderrors) {
2990 (void) printf("\nError counts:\n\n");
2991 (void) printf("\t%5s %s\n", "errno", "count");
2992 for (int e = 0; e < 256; e++) {
2993 if (zcb.zcb_errors[e] != 0) {
2994 (void) printf("\t%5d %llu\n",
2995 e, (u_longlong_t)zcb.zcb_errors[e]);
2996 }
2997 }
2998 }
2999
3000 /*
3001 * Report any leaked segments.
3002 */
3003 zdb_leak_fini(spa);
3004
3005 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
3006
3007 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
3008 spec_alloc = metaslab_class_get_alloc(spa_special_class(spa));
3009 norm_space = metaslab_class_get_space(spa_normal_class(spa));
3010
3011 norm_alloc += spec_alloc;
3012 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
3013 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
3014
3015 if (total_found == total_alloc) {
3016 if (!dump_opt['L'])
3017 (void) printf("\n\tNo leaks (block sum matches space"
3018 " maps exactly)\n");
3019 } else {
3020 (void) printf("block traversal size %llu != alloc %llu "
3021 "(%s %lld)\n",
3022 (u_longlong_t)total_found,
3023 (u_longlong_t)total_alloc,
3024 (dump_opt['L']) ? "unreachable" : "leaked",
3025 (longlong_t)(total_alloc - total_found));
3026 leaks = B_TRUE;
3027 }
3028
3029 if (tzb->zb_count == 0)
3030 return (2);
3031
3032 (void) printf("\n");
3033 (void) printf("\tbp count: %10llu\n",
3034 (u_longlong_t)tzb->zb_count);
3035 (void) printf("\tganged count: %10llu\n",
3036 (longlong_t)tzb->zb_gangs);
3037 (void) printf("\tbp logical: %10llu avg: %6llu\n",
3038 (u_longlong_t)tzb->zb_lsize,
3039 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
3040 (void) printf("\tbp physical: %10llu avg:"
3041 " %6llu compression: %6.2f\n",
3042 (u_longlong_t)tzb->zb_psize,
3043 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
3044 (double)tzb->zb_lsize / tzb->zb_psize);
3045 (void) printf("\tbp allocated: %10llu avg:"
3046 " %6llu compression: %6.2f\n",
3047 (u_longlong_t)tzb->zb_asize,
3048 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
3049 (double)tzb->zb_lsize / tzb->zb_asize);
3050 (void) printf("\tbp deduped: %10llu ref>1:"
3051 " %6llu deduplication: %6.2f\n",
3052 (u_longlong_t)zcb.zcb_dedup_asize,
3053 (u_longlong_t)zcb.zcb_dedup_blocks,
3054 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
3055 if (spec_alloc != 0) {
3056 (void) printf("\tspecial allocated: %10llu\n",
3057 (u_longlong_t)spec_alloc);
3058 }
3059 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
3060 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
3061
3062 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
3063 if (zcb.zcb_embedded_blocks[i] == 0)
3064 continue;
3065 (void) printf("\n");
3066 (void) printf("\tadditional, non-pointer bps of type %u: "
3067 "%10llu\n",
3068 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
3069
3070 if (dump_opt['b'] >= 3) {
3071 (void) printf("\t number of (compressed) bytes: "
3072 "number of bps\n");
3073 dump_histogram(zcb.zcb_embedded_histogram[i],
3074 sizeof (zcb.zcb_embedded_histogram[i]) /
3075 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
3076 }
3077 }
3078
3079 if (tzb->zb_ditto_samevdev != 0) {
3080 (void) printf("\tDittoed blocks on same vdev: %llu\n",
3081 (longlong_t)tzb->zb_ditto_samevdev);
3082 }
3083
3084 if (dump_opt['b'] >= 2) {
3085 int l, t, level;
3086 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
3087 "\t avg\t comp\t%%Total\tType\n");
3088
3089 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
3090 char csize[32], lsize[32], psize[32], asize[32];
3091 char avg[32], gang[32];
3092 const char *typename;
3093
3094 /* make sure nicenum has enough space */
3095 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ);
3096 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
3097 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ);
3098 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
3099 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ);
3100 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ);
3101
3102 if (t < DMU_OT_NUMTYPES)
3103 typename = dmu_ot[t].ot_name;
3104 else
3105 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
3106
3107 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
3108 (void) printf("%6s\t%5s\t%5s\t%5s"
3109 "\t%5s\t%5s\t%6s\t%s\n",
3110 "-",
3111 "-",
3112 "-",
3113 "-",
3114 "-",
3115 "-",
3116 "-",
3117 typename);
3118 continue;
3119 }
3120
3121 for (l = ZB_TOTAL - 1; l >= -1; l--) {
3122 level = (l == -1 ? ZB_TOTAL : l);
3123 zb = &zcb.zcb_type[level][t];
3124
3125 if (zb->zb_asize == 0)
3126 continue;
3127
3128 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
3129 continue;
3130
3131 if (level == 0 && zb->zb_asize ==
3132 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
3133 continue;
3134
3135 zdb_nicenum(zb->zb_count, csize,
3136 sizeof (csize));
3137 zdb_nicenum(zb->zb_lsize, lsize,
3138 sizeof (lsize));
3139 zdb_nicenum(zb->zb_psize, psize,
3140 sizeof (psize));
3141 zdb_nicenum(zb->zb_asize, asize,
3142 sizeof (asize));
3143 zdb_nicenum(zb->zb_asize / zb->zb_count, avg,
3144 sizeof (avg));
3145 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang));
3146
3147 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
3148 "\t%5.2f\t%6.2f\t",
3149 csize, lsize, psize, asize, avg,
3150 (double)zb->zb_lsize / zb->zb_psize,
3151 100.0 * zb->zb_asize / tzb->zb_asize);
3152
3153 if (level == ZB_TOTAL)
3154 (void) printf("%s\n", typename);
3155 else
3156 (void) printf(" L%d %s\n",
3157 level, typename);
3158
3159 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
3160 (void) printf("\t number of ganged "
3161 "blocks: %s\n", gang);
3162 }
3163
3164 if (dump_opt['b'] >= 4) {
3165 (void) printf("psize "
3166 "(in 512-byte sectors): "
3167 "number of blocks\n");
3168 dump_histogram(zb->zb_psize_histogram,
3169 PSIZE_HISTO_SIZE, 0);
3170 }
3171 }
3172 }
3173 }
3174
3175 (void) printf("\n");
3176
3177 if (leaks)
3178 return (2);
3179
3180 if (zcb.zcb_haderrors)
3181 return (3);
3182
3183 return (0);
3184 }
3185
3186 typedef struct zdb_ddt_entry {
3187 ddt_key_t zdde_key;
3188 uint64_t zdde_ref_blocks;
3189 uint64_t zdde_ref_lsize;
3190 uint64_t zdde_ref_psize;
3191 uint64_t zdde_ref_dsize;
3192 avl_node_t zdde_node;
3193 } zdb_ddt_entry_t;
3194
3195 /* ARGSUSED */
3196 static int
3197 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3198 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3199 {
3200 avl_tree_t *t = arg;
3201 avl_index_t where;
3202 zdb_ddt_entry_t *zdde, zdde_search;
3203
3204 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
3205 return (0);
3206
3207 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
3208 (void) printf("traversing objset %llu, %llu objects, "
3209 "%lu blocks so far\n",
3210 (u_longlong_t)zb->zb_objset,
3211 (u_longlong_t)BP_GET_FILL(bp),
3212 avl_numnodes(t));
3213 }
3214
3215 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
3216 BP_IS_METADATA(bp))
3217 return (0);
3218
3219 ddt_key_fill(&zdde_search.zdde_key, bp);
3220
3221 zdde = avl_find(t, &zdde_search, &where);
3222
3223 if (zdde == NULL) {
3224 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
3225 zdde->zdde_key = zdde_search.zdde_key;
3226 avl_insert(t, zdde, where);
3227 }
3228
3229 zdde->zdde_ref_blocks += 1;
3230 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
3231 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
3232 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
3233
3234 return (0);
3235 }
3236
3237 static void
3238 dump_simulated_ddt(spa_t *spa)
3239 {
3240 avl_tree_t t;
3241 void *cookie = NULL;
3242 zdb_ddt_entry_t *zdde;
3243 ddt_histogram_t ddh_total;
3244 ddt_stat_t dds_total;
3245
3246 bzero(&ddh_total, sizeof (ddh_total));
3247 bzero(&dds_total, sizeof (dds_total));
3248 avl_create(&t, ddt_entry_compare,
3249 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
3250
3251 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3252
3253 (void) traverse_pool(spa, 0, UINT64_MAX,
3254 TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
3255 zdb_ddt_add_cb, &t, NULL);
3256
3257 spa_config_exit(spa, SCL_CONFIG, FTAG);
3258
3259 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
3260 ddt_stat_t dds;
3261 uint64_t refcnt = zdde->zdde_ref_blocks;
3262 ASSERT(refcnt != 0);
3263
3264 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
3265 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
3266 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
3267 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
3268
3269 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
3270 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
3271 dds.dds_ref_psize = zdde->zdde_ref_psize;
3272 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3273
3274 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3275 &dds, 0);
3276
3277 umem_free(zdde, sizeof (*zdde));
3278 }
3279
3280 avl_destroy(&t);
3281
3282 ddt_histogram_stat(&dds_total, &ddh_total);
3283
3284 (void) printf("Simulated DDT histogram:\n");
3285
3286 zpool_dump_ddt(&dds_total, &ddh_total);
3287
3288 dump_dedup_ratio(&dds_total);
3289 }
3290
3291 static void
3292 dump_zpool(spa_t *spa)
3293 {
3294 dsl_pool_t *dp = spa_get_dsl(spa);
3295 int rc = 0;
3296
3297 if (dump_opt['S']) {
3298 dump_simulated_ddt(spa);
3299 return;
3300 }
3301
3302 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3303 (void) printf("\nCached configuration:\n");
3304 dump_nvlist(spa->spa_config, 8);
3305 }
3306
3307 if (dump_opt['C'])
3308 dump_config(spa);
3309
3310 if (dump_opt['u'])
3311 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3312
3313 if (dump_opt['D'])
3314 dump_all_ddts(spa);
3315
3316 if (dump_opt['d'] > 2 || dump_opt['m'])
3317 dump_metaslabs(spa);
3318 if (dump_opt['M'])
3319 dump_metaslab_groups(spa);
3320
3321 if (dump_opt['d'] || dump_opt['i']) {
3322 dump_dir(dp->dp_meta_objset);
3323 if (dump_opt['d'] >= 3) {
3324 dump_full_bpobj(&spa->spa_deferred_bpobj,
3325 "Deferred frees", 0);
3326 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3327 dump_full_bpobj(
3328 &spa->spa_dsl_pool->dp_free_bpobj,
3329 "Pool snapshot frees", 0);
3330 }
3331
3332 if (spa_feature_is_active(spa,
3333 SPA_FEATURE_ASYNC_DESTROY)) {
3334 dump_bptree(spa->spa_meta_objset,
3335 spa->spa_dsl_pool->dp_bptree_obj,
3336 "Pool dataset frees");
3337 }
3338 dump_dtl(spa->spa_root_vdev, 0);
3339 }
3340 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3341 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3342
3343 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
3344 uint64_t refcount;
3345
3346 if (!(spa_feature_table[f].fi_flags &
3347 ZFEATURE_FLAG_PER_DATASET) ||
3348 !spa_feature_is_enabled(spa, f)) {
3349 ASSERT0(dataset_feature_count[f]);
3350 continue;
3351 }
3352 (void) feature_get_refcount(spa,
3353 &spa_feature_table[f], &refcount);
3354 if (dataset_feature_count[f] != refcount) {
3355 (void) printf("%s feature refcount mismatch: "
3356 "%lld datasets != %lld refcount\n",
3357 spa_feature_table[f].fi_uname,
3358 (longlong_t)dataset_feature_count[f],
3359 (longlong_t)refcount);
3360 rc = 2;
3361 } else {
3362 (void) printf("Verified %s feature refcount "
3363 "of %llu is correct\n",
3364 spa_feature_table[f].fi_uname,
3365 (longlong_t)refcount);
3366 }
3367 }
3368 }
3369 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3370 rc = dump_block_stats(spa);
3371
3372 if (rc == 0)
3373 rc = verify_spacemap_refcounts(spa);
3374
3375 if (dump_opt['s'])
3376 show_pool_stats(spa);
3377
3378 if (dump_opt['h'])
3379 dump_history(spa);
3380
3381 if (rc != 0) {
3382 dump_debug_buffer();
3383 exit(rc);
3384 }
3385 }
3386
3387 #define ZDB_FLAG_CHECKSUM 0x0001
3388 #define ZDB_FLAG_DECOMPRESS 0x0002
3389 #define ZDB_FLAG_BSWAP 0x0004
3390 #define ZDB_FLAG_GBH 0x0008
3391 #define ZDB_FLAG_INDIRECT 0x0010
3392 #define ZDB_FLAG_PHYS 0x0020
3393 #define ZDB_FLAG_RAW 0x0040
3394 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3395
3396 static int flagbits[256];
3397
3398 static void
3399 zdb_print_blkptr(blkptr_t *bp, int flags)
3400 {
3401 char blkbuf[BP_SPRINTF_LEN];
3402
3403 if (flags & ZDB_FLAG_BSWAP)
3404 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3405
3406 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3407 (void) printf("%s\n", blkbuf);
3408 }
3409
3410 static void
3411 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3412 {
3413 int i;
3414
3415 for (i = 0; i < nbps; i++)
3416 zdb_print_blkptr(&bp[i], flags);
3417 }
3418
3419 static void
3420 zdb_dump_gbh(void *buf, int flags)
3421 {
3422 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3423 }
3424
3425 static void
3426 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3427 {
3428 if (flags & ZDB_FLAG_BSWAP)
3429 byteswap_uint64_array(buf, size);
3430 (void) write(1, buf, size);
3431 }
3432
3433 static void
3434 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3435 {
3436 uint64_t *d = (uint64_t *)buf;
3437 unsigned nwords = size / sizeof (uint64_t);
3438 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3439 unsigned i, j;
3440 const char *hdr;
3441 char *c;
3442
3443
3444 if (do_bswap)
3445 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3446 else
3447 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3448
3449 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3450
3451 for (i = 0; i < nwords; i += 2) {
3452 (void) printf("%06llx: %016llx %016llx ",
3453 (u_longlong_t)(i * sizeof (uint64_t)),
3454 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3455 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3456
3457 c = (char *)&d[i];
3458 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3459 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3460 (void) printf("\n");
3461 }
3462 }
3463
3464 /*
3465 * There are two acceptable formats:
3466 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3467 * child[.child]* - For example: 0.1.1
3468 *
3469 * The second form can be used to specify arbitrary vdevs anywhere
3470 * in the heirarchy. For example, in a pool with a mirror of
3471 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3472 */
3473 static vdev_t *
3474 zdb_vdev_lookup(vdev_t *vdev, const char *path)
3475 {
3476 char *s, *p, *q;
3477 unsigned i;
3478
3479 if (vdev == NULL)
3480 return (NULL);
3481
3482 /* First, assume the x.x.x.x format */
3483 i = strtoul(path, &s, 10);
3484 if (s == path || (s && *s != '.' && *s != '\0'))
3485 goto name;
3486 if (i >= vdev->vdev_children)
3487 return (NULL);
3488
3489 vdev = vdev->vdev_child[i];
3490 if (*s == '\0')
3491 return (vdev);
3492 return (zdb_vdev_lookup(vdev, s+1));
3493
3494 name:
3495 for (i = 0; i < vdev->vdev_children; i++) {
3496 vdev_t *vc = vdev->vdev_child[i];
3497
3498 if (vc->vdev_path == NULL) {
3499 vc = zdb_vdev_lookup(vc, path);
3500 if (vc == NULL)
3501 continue;
3502 else
3503 return (vc);
3504 }
3505
3506 p = strrchr(vc->vdev_path, '/');
3507 p = p ? p + 1 : vc->vdev_path;
3508 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3509
3510 if (strcmp(vc->vdev_path, path) == 0)
3511 return (vc);
3512 if (strcmp(p, path) == 0)
3513 return (vc);
3514 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3515 return (vc);
3516 }
3517
3518 return (NULL);
3519 }
3520
3521 /* ARGSUSED */
3522 static int
3523 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused)
3524 {
3525 return (random_get_pseudo_bytes(buf, len));
3526 }
3527
3528 /*
3529 * Read a block from a pool and print it out. The syntax of the
3530 * block descriptor is:
3531 *
3532 * pool:vdev_specifier:offset:size[:flags]
3533 *
3534 * pool - The name of the pool you wish to read from
3535 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3536 * offset - offset, in hex, in bytes
3537 * size - Amount of data to read, in hex, in bytes
3538 * flags - A string of characters specifying options
3539 * b: Decode a blkptr at given offset within block
3540 * *c: Calculate and display checksums
3541 * d: Decompress data before dumping
3542 * e: Byteswap data before dumping
3543 * g: Display data as a gang block header
3544 * i: Display as an indirect block
3545 * p: Do I/O to physical offset
3546 * r: Dump raw data to stdout
3547 *
3548 * * = not yet implemented
3549 */
3550 static void
3551 zdb_read_block(char *thing, spa_t *spa)
3552 {
3553 blkptr_t blk, *bp = &blk;
3554 dva_t *dva = bp->blk_dva;
3555 int flags = 0;
3556 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3557 zio_t *zio;
3558 vdev_t *vd;
3559 abd_t *pabd;
3560 void *lbuf, *buf;
3561 const char *s, *vdev;
3562 char *p, *dup, *flagstr;
3563 int i, error;
3564
3565 dup = strdup(thing);
3566 s = strtok(dup, ":");
3567 vdev = s ? s : "";
3568 s = strtok(NULL, ":");
3569 offset = strtoull(s ? s : "", NULL, 16);
3570 s = strtok(NULL, ":");
3571 size = strtoull(s ? s : "", NULL, 16);
3572 s = strtok(NULL, ":");
3573 if (s)
3574 flagstr = strdup(s);
3575 else
3576 flagstr = strdup("");
3577
3578 s = NULL;
3579 if (size == 0)
3580 s = "size must not be zero";
3581 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3582 s = "size must be a multiple of sector size";
3583 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3584 s = "offset must be a multiple of sector size";
3585 if (s) {
3586 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3587 free(dup);
3588 return;
3589 }
3590
3591 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3592 for (i = 0; flagstr[i]; i++) {
3593 int bit = flagbits[(uchar_t)flagstr[i]];
3594
3595 if (bit == 0) {
3596 (void) printf("***Invalid flag: %c\n",
3597 flagstr[i]);
3598 continue;
3599 }
3600 flags |= bit;
3601
3602 /* If it's not something with an argument, keep going */
3603 if ((bit & (ZDB_FLAG_CHECKSUM |
3604 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3605 continue;
3606
3607 p = &flagstr[i + 1];
3608 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3609 blkptr_offset = strtoull(p, &p, 16);
3610 if (*p != ':' && *p != '\0') {
3611 (void) printf("***Invalid flag arg: '%s'\n", s);
3612 free(dup);
3613 return;
3614 }
3615 }
3616 }
3617 free(flagstr);
3618
3619 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3620 if (vd == NULL) {
3621 (void) printf("***Invalid vdev: %s\n", vdev);
3622 free(dup);
3623 return;
3624 } else {
3625 if (vd->vdev_path)
3626 (void) fprintf(stderr, "Found vdev: %s\n",
3627 vd->vdev_path);
3628 else
3629 (void) fprintf(stderr, "Found vdev type: %s\n",
3630 vd->vdev_ops->vdev_op_type);
3631 }
3632
3633 psize = size;
3634 lsize = size;
3635
3636 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE);
3637 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3638
3639 BP_ZERO(bp);
3640
3641 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3642 DVA_SET_OFFSET(&dva[0], offset);
3643 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3644 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3645
3646 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3647
3648 BP_SET_LSIZE(bp, lsize);
3649 BP_SET_PSIZE(bp, psize);
3650 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3651 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3652 BP_SET_TYPE(bp, DMU_OT_NONE);
3653 BP_SET_LEVEL(bp, 0);
3654 BP_SET_DEDUP(bp, 0);
3655 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3656
3657 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3658 zio = zio_root(spa, NULL, NULL, 0);
3659
3660 if (vd == vd->vdev_top) {
3661 /*
3662 * Treat this as a normal block read.
3663 */
3664 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
3665 ZIO_PRIORITY_SYNC_READ,
3666 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3667 } else {
3668 /*
3669 * Treat this as a vdev child I/O.
3670 */
3671 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
3672 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3673 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3674 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3675 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3676 }
3677
3678 error = zio_wait(zio);
3679 spa_config_exit(spa, SCL_STATE, FTAG);
3680
3681 if (error) {
3682 (void) printf("Read of %s failed, error: %d\n", thing, error);
3683 goto out;
3684 }
3685
3686 if (flags & ZDB_FLAG_DECOMPRESS) {
3687 /*
3688 * We don't know how the data was compressed, so just try
3689 * every decompress function at every inflated blocksize.
3690 */
3691 enum zio_compress c;
3692 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3693 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3694
3695 abd_copy_to_buf(pbuf2, pabd, psize);
3696
3697 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize,
3698 random_get_pseudo_bytes_cb, NULL));
3699
3700 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3701 SPA_MAXBLOCKSIZE - psize));
3702
3703 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3704 lsize -= SPA_MINBLOCKSIZE) {
3705 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3706 if (zio_decompress_data(c, pabd,
3707 lbuf, psize, lsize) == 0 &&
3708 zio_decompress_data_buf(c, pbuf2,
3709 lbuf2, psize, lsize) == 0 &&
3710 bcmp(lbuf, lbuf2, lsize) == 0)
3711 break;
3712 }
3713 if (c != ZIO_COMPRESS_FUNCTIONS)
3714 break;
3715 lsize -= SPA_MINBLOCKSIZE;
3716 }
3717
3718 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3719 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3720
3721 if (lsize <= psize) {
3722 (void) printf("Decompress of %s failed\n", thing);
3723 goto out;
3724 }
3725 buf = lbuf;
3726 size = lsize;
3727 } else {
3728 buf = abd_to_buf(pabd);
3729 size = psize;
3730 }
3731
3732 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3733 zdb_print_blkptr((blkptr_t *)(void *)
3734 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3735 else if (flags & ZDB_FLAG_RAW)
3736 zdb_dump_block_raw(buf, size, flags);
3737 else if (flags & ZDB_FLAG_INDIRECT)
3738 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3739 flags);
3740 else if (flags & ZDB_FLAG_GBH)
3741 zdb_dump_gbh(buf, flags);
3742 else
3743 zdb_dump_block(thing, buf, size, flags);
3744
3745 out:
3746 abd_free(pabd);
3747 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3748 free(dup);
3749 }
3750
3751 static void
3752 zdb_embedded_block(char *thing)
3753 {
3754 blkptr_t bp;
3755 unsigned long long *words = (void *)&bp;
3756 char buf[SPA_MAXBLOCKSIZE];
3757 int err;
3758
3759 bzero(&bp, sizeof (bp));
3760 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
3761 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
3762 words + 0, words + 1, words + 2, words + 3,
3763 words + 4, words + 5, words + 6, words + 7,
3764 words + 8, words + 9, words + 10, words + 11,
3765 words + 12, words + 13, words + 14, words + 15);
3766 if (err != 16) {
3767 (void) printf("invalid input format\n");
3768 exit(1);
3769 }
3770 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
3771 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
3772 if (err != 0) {
3773 (void) printf("decode failed: %u\n", err);
3774 exit(1);
3775 }
3776 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
3777 }
3778
3779 static boolean_t
3780 pool_match(nvlist_t *cfg, char *tgt)
3781 {
3782 uint64_t v, guid = strtoull(tgt, NULL, 0);
3783 char *s;
3784
3785 if (guid != 0) {
3786 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3787 return (v == guid);
3788 } else {
3789 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3790 return (strcmp(s, tgt) == 0);
3791 }
3792 return (B_FALSE);
3793 }
3794
3795 static char *
3796 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3797 {
3798 nvlist_t *pools;
3799 nvlist_t *match = NULL;
3800 char *name = NULL;
3801 char *sepp = NULL;
3802 char sep = '\0';
3803 int count = 0;
3804 importargs_t args;
3805
3806 bzero(&args, sizeof (args));
3807 args.paths = dirc;
3808 args.path = dirv;
3809 args.can_be_active = B_TRUE;
3810
3811 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3812 sep = *sepp;
3813 *sepp = '\0';
3814 }
3815
3816 pools = zpool_search_import(g_zfs, &args);
3817
3818 if (pools != NULL) {
3819 nvpair_t *elem = NULL;
3820 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3821 verify(nvpair_value_nvlist(elem, configp) == 0);
3822 if (pool_match(*configp, *target)) {
3823 count++;
3824 if (match != NULL) {
3825 /* print previously found config */
3826 if (name != NULL) {
3827 (void) printf("%s\n", name);
3828 dump_nvlist(match, 8);
3829 name = NULL;
3830 }
3831 (void) printf("%s\n",
3832 nvpair_name(elem));
3833 dump_nvlist(*configp, 8);
3834 } else {
3835 match = *configp;
3836 name = nvpair_name(elem);
3837 }
3838 }
3839 }
3840 }
3841 if (count > 1)
3842 (void) fatal("\tMatched %d pools - use pool GUID "
3843 "instead of pool name or \n"
3844 "\tpool name part of a dataset name to select pool", count);
3845
3846 if (sepp)
3847 *sepp = sep;
3848 /*
3849 * If pool GUID was specified for pool id, replace it with pool name
3850 */
3851 if (name && (strstr(*target, name) != *target)) {
3852 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3853
3854 *target = umem_alloc(sz, UMEM_NOFAIL);
3855 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3856 }
3857
3858 *configp = name ? match : NULL;
3859
3860 return (name);
3861 }
3862
3863 int
3864 main(int argc, char **argv)
3865 {
3866 int c;
3867 struct rlimit rl = { 1024, 1024 };
3868 spa_t *spa = NULL;
3869 objset_t *os = NULL;
3870 int dump_all = 1;
3871 int verbose = 0;
3872 int error = 0;
3873 char **searchdirs = NULL;
3874 int nsearch = 0;
3875 char *target;
3876 nvlist_t *policy = NULL;
3877 uint64_t max_txg = UINT64_MAX;
3878 int flags = ZFS_IMPORT_MISSING_LOG;
3879 int rewind = ZPOOL_NEVER_REWIND;
3880 char *spa_config_path_env;
3881 boolean_t target_is_spa = B_TRUE;
3882
3883 (void) setrlimit(RLIMIT_NOFILE, &rl);
3884 (void) enable_extended_FILE_stdio(-1, -1);
3885
3886 dprintf_setup(&argc, argv);
3887
3888 /*
3889 * If there is an environment variable SPA_CONFIG_PATH it overrides
3890 * default spa_config_path setting. If -U flag is specified it will
3891 * override this environment variable settings once again.
3892 */
3893 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3894 if (spa_config_path_env != NULL)
3895 spa_config_path = spa_config_path_env;
3896
3897 while ((c = getopt(argc, argv,
3898 "AbcCdDeEFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
3899 switch (c) {
3900 case 'b':
3901 case 'c':
3902 case 'C':
3903 case 'd':
3904 case 'D':
3905 case 'E':
3906 case 'G':
3907 case 'h':
3908 case 'i':
3909 case 'l':
3910 case 'm':
3911 case 'M':
3912 case 'O':
3913 case 'R':
3914 case 's':
3915 case 'S':
3916 case 'u':
3917 dump_opt[c]++;
3918 dump_all = 0;
3919 break;
3920 case 'A':
3921 case 'e':
3922 case 'F':
3923 case 'L':
3924 case 'P':
3925 case 'q':
3926 case 'X':
3927 dump_opt[c]++;
3928 break;
3929 /* NB: Sort single match options below. */
3930 case 'I':
3931 max_inflight = strtoull(optarg, NULL, 0);
3932 if (max_inflight == 0) {
3933 (void) fprintf(stderr, "maximum number "
3934 "of inflight I/Os must be greater "
3935 "than 0\n");
3936 usage();
3937 }
3938 break;
3939 case 'o':
3940 error = set_global_var(optarg);
3941 if (error != 0)
3942 usage();
3943 break;
3944 case 'p':
3945 if (searchdirs == NULL) {
3946 searchdirs = umem_alloc(sizeof (char *),
3947 UMEM_NOFAIL);
3948 } else {
3949 char **tmp = umem_alloc((nsearch + 1) *
3950 sizeof (char *), UMEM_NOFAIL);
3951 bcopy(searchdirs, tmp, nsearch *
3952 sizeof (char *));
3953 umem_free(searchdirs,
3954 nsearch * sizeof (char *));
3955 searchdirs = tmp;
3956 }
3957 searchdirs[nsearch++] = optarg;
3958 break;
3959 case 't':
3960 max_txg = strtoull(optarg, NULL, 0);
3961 if (max_txg < TXG_INITIAL) {
3962 (void) fprintf(stderr, "incorrect txg "
3963 "specified: %s\n", optarg);
3964 usage();
3965 }
3966 break;
3967 case 'U':
3968 spa_config_path = optarg;
3969 if (spa_config_path[0] != '/') {
3970 (void) fprintf(stderr,
3971 "cachefile must be an absolute path "
3972 "(i.e. start with a slash)\n");
3973 usage();
3974 }
3975 break;
3976 case 'v':
3977 verbose++;
3978 break;
3979 case 'V':
3980 flags = ZFS_IMPORT_VERBATIM;
3981 break;
3982 case 'x':
3983 vn_dumpdir = optarg;
3984 break;
3985 default:
3986 usage();
3987 break;
3988 }
3989 }
3990
3991 if (!dump_opt['e'] && searchdirs != NULL) {
3992 (void) fprintf(stderr, "-p option requires use of -e\n");
3993 usage();
3994 }
3995
3996 /*
3997 * ZDB does not typically re-read blocks; therefore limit the ARC
3998 * to 256 MB, which can be used entirely for metadata.
3999 */
4000 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
4001
4002 /*
4003 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
4004 * "zdb -b" uses traversal prefetch which uses async reads.
4005 * For good performance, let several of them be active at once.
4006 */
4007 zfs_vdev_async_read_max_active = 10;
4008
4009 /*
4010 * Disable reference tracking for better performance.
4011 */
4012 reference_tracking_enable = B_FALSE;
4013
4014 kernel_init(FREAD);
4015 g_zfs = libzfs_init();
4016 ASSERT(g_zfs != NULL);
4017
4018 if (dump_all)
4019 verbose = MAX(verbose, 1);
4020
4021 for (c = 0; c < 256; c++) {
4022 if (dump_all && strchr("AeEFlLOPRSX", c) == NULL)
4023 dump_opt[c] = 1;
4024 if (dump_opt[c])
4025 dump_opt[c] += verbose;
4026 }
4027
4028 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
4029 zfs_recover = (dump_opt['A'] > 1);
4030
4031 argc -= optind;
4032 argv += optind;
4033
4034 if (argc < 2 && dump_opt['R'])
4035 usage();
4036
4037 if (dump_opt['E']) {
4038 if (argc != 1)
4039 usage();
4040 zdb_embedded_block(argv[0]);
4041 return (0);
4042 }
4043
4044 if (argc < 1) {
4045 if (!dump_opt['e'] && dump_opt['C']) {
4046 dump_cachefile(spa_config_path);
4047 return (0);
4048 }
4049 usage();
4050 }
4051
4052 if (dump_opt['l'])
4053 return (dump_label(argv[0]));
4054
4055 if (dump_opt['O']) {
4056 if (argc != 2)
4057 usage();
4058 dump_opt['v'] = verbose + 3;
4059 return (dump_path(argv[0], argv[1]));
4060 }
4061
4062 if (dump_opt['X'] || dump_opt['F'])
4063 rewind = ZPOOL_DO_REWIND |
4064 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
4065
4066 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
4067 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
4068 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
4069 fatal("internal error: %s", strerror(ENOMEM));
4070
4071 error = 0;
4072 target = argv[0];
4073
4074 if (dump_opt['e']) {
4075 nvlist_t *cfg = NULL;
4076 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
4077
4078 error = ENOENT;
4079 if (name) {
4080 if (dump_opt['C'] > 1) {
4081 (void) printf("\nConfiguration for import:\n");
4082 dump_nvlist(cfg, 8);
4083 }
4084 if (nvlist_add_nvlist(cfg,
4085 ZPOOL_REWIND_POLICY, policy) != 0) {
4086 fatal("can't open '%s': %s",
4087 target, strerror(ENOMEM));
4088 }
4089 error = spa_import(name, cfg, NULL, flags);
4090 }
4091 }
4092
4093 if (strpbrk(target, "/@") != NULL) {
4094 size_t targetlen;
4095
4096 target_is_spa = B_FALSE;
4097 /*
4098 * Remove any trailing slash. Later code would get confused
4099 * by it, but we want to allow it so that "pool/" can
4100 * indicate that we want to dump the topmost filesystem,
4101 * rather than the whole pool.
4102 */
4103 targetlen = strlen(target);
4104 if (targetlen != 0 && target[targetlen - 1] == '/')
4105 target[targetlen - 1] = '\0';
4106 }
4107
4108 if (error == 0) {
4109 if (target_is_spa || dump_opt['R']) {
4110 error = spa_open_rewind(target, &spa, FTAG, policy,
4111 NULL);
4112 if (error) {
4113 /*
4114 * If we're missing the log device then
4115 * try opening the pool after clearing the
4116 * log state.
4117 */
4118 mutex_enter(&spa_namespace_lock);
4119 if ((spa = spa_lookup(target)) != NULL &&
4120 spa->spa_log_state == SPA_LOG_MISSING) {
4121 spa->spa_log_state = SPA_LOG_CLEAR;
4122 error = 0;
4123 }
4124 mutex_exit(&spa_namespace_lock);
4125
4126 if (!error) {
4127 error = spa_open_rewind(target, &spa,
4128 FTAG, policy, NULL);
4129 }
4130 }
4131 } else {
4132 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
4133 }
4134 }
4135 nvlist_free(policy);
4136
4137 if (error)
4138 fatal("can't open '%s': %s", target, strerror(error));
4139
4140 argv++;
4141 argc--;
4142 if (!dump_opt['R']) {
4143 if (argc > 0) {
4144 zopt_objects = argc;
4145 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
4146 for (unsigned i = 0; i < zopt_objects; i++) {
4147 errno = 0;
4148 zopt_object[i] = strtoull(argv[i], NULL, 0);
4149 if (zopt_object[i] == 0 && errno != 0)
4150 fatal("bad number %s: %s",
4151 argv[i], strerror(errno));
4152 }
4153 }
4154 if (os != NULL) {
4155 dump_dir(os);
4156 } else if (zopt_objects > 0 && !dump_opt['m']) {
4157 dump_dir(spa->spa_meta_objset);
4158 } else {
4159 dump_zpool(spa);
4160 }
4161 } else {
4162 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
4163 flagbits['c'] = ZDB_FLAG_CHECKSUM;
4164 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
4165 flagbits['e'] = ZDB_FLAG_BSWAP;
4166 flagbits['g'] = ZDB_FLAG_GBH;
4167 flagbits['i'] = ZDB_FLAG_INDIRECT;
4168 flagbits['p'] = ZDB_FLAG_PHYS;
4169 flagbits['r'] = ZDB_FLAG_RAW;
4170
4171 for (int i = 0; i < argc; i++)
4172 zdb_read_block(argv[i], spa);
4173 }
4174
4175 if (os != NULL)
4176 close_objset(os, FTAG);
4177 else
4178 spa_close(spa, FTAG);
4179
4180 fuid_table_destroy();
4181
4182 dump_debug_buffer();
4183
4184 libzfs_fini(g_zfs);
4185 kernel_fini();
4186
4187 return (0);
4188 }