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