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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, 2014 by Delphix. All rights reserved.
25 */
26
27 #include <stdio.h>
28 #include <unistd.h>
29 #include <stdio_ext.h>
30 #include <stdlib.h>
31 #include <ctype.h>
32 #include <sys/zfs_context.h>
33 #include <sys/spa.h>
34 #include <sys/spa_impl.h>
35 #include <sys/dmu.h>
36 #include <sys/zap.h>
37 #include <sys/fs/zfs.h>
38 #include <sys/zfs_znode.h>
39 #include <sys/zfs_sa.h>
40 #include <sys/sa.h>
41 #include <sys/sa_impl.h>
42 #include <sys/vdev.h>
43 #include <sys/vdev_impl.h>
44 #include <sys/metaslab_impl.h>
45 #include <sys/dmu_objset.h>
46 #include <sys/dsl_dir.h>
47 #include <sys/dsl_dataset.h>
48 #include <sys/dsl_pool.h>
49 #include <sys/dbuf.h>
50 #include <sys/zil.h>
51 #include <sys/zil_impl.h>
52 #include <sys/stat.h>
53 #include <sys/resource.h>
54 #include <sys/dmu_traverse.h>
55 #include <sys/zio_checksum.h>
56 #include <sys/zio_compress.h>
57 #include <sys/zfs_fuid.h>
58 #include <sys/arc.h>
59 #include <sys/ddt.h>
60 #include <sys/zfeature.h>
61 #include <zfs_comutil.h>
62 #undef ZFS_MAXNAMELEN
63 #include <libzfs.h>
64
65 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
66 zio_compress_table[(idx)].ci_name : "UNKNOWN")
67 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
68 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
69 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
70 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
71 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
72 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
73 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
74 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
75
76 #ifndef lint
77 extern int zfs_recover;
78 #else
79 int zfs_recover;
80 #endif
81
82 const char cmdname[] = "zdb";
83 uint8_t dump_opt[256];
84
85 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
86
87 extern void dump_intent_log(zilog_t *);
88 uint64_t *zopt_object = NULL;
89 int zopt_objects = 0;
90 libzfs_handle_t *g_zfs;
91 uint64_t max_inflight = 200;
92
93 /*
94 * These libumem hooks provide a reasonable set of defaults for the allocator's
95 * debugging facilities.
96 */
97 const char *
98 _umem_debug_init(void)
99 {
100 return ("default,verbose"); /* $UMEM_DEBUG setting */
101 }
102
103 const char *
104 _umem_logging_init(void)
105 {
106 return ("fail,contents"); /* $UMEM_LOGGING setting */
107 }
108
109 static void
110 usage(void)
111 {
112 (void) fprintf(stderr,
113 "Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
114 "[-U config] [-I inflight I/Os] poolname [object...]\n"
115 " %s [-divPA] [-e -p path...] [-U config] dataset "
116 "[object...]\n"
117 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
118 "poolname [vdev [metaslab...]]\n"
119 " %s -R [-A] [-e [-p path...]] poolname "
120 "vdev:offset:size[:flags]\n"
121 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n"
122 " %s -l [-uA] device\n"
123 " %s -C [-A] [-U config]\n\n",
124 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
125
126 (void) fprintf(stderr, " Dataset name must include at least one "
127 "separator character '/' or '@'\n");
128 (void) fprintf(stderr, " If dataset name is specified, only that "
129 "dataset is dumped\n");
130 (void) fprintf(stderr, " If object numbers are specified, only "
131 "those objects are dumped\n\n");
132 (void) fprintf(stderr, " Options to control amount of output:\n");
133 (void) fprintf(stderr, " -u uberblock\n");
134 (void) fprintf(stderr, " -d dataset(s)\n");
135 (void) fprintf(stderr, " -i intent logs\n");
136 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
137 (void) fprintf(stderr, " -h pool history\n");
138 (void) fprintf(stderr, " -b block statistics\n");
139 (void) fprintf(stderr, " -m metaslabs\n");
140 (void) fprintf(stderr, " -M metaslab groups\n");
141 (void) fprintf(stderr, " -c checksum all metadata (twice for "
142 "all data) blocks\n");
143 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
144 (void) fprintf(stderr, " -D dedup statistics\n");
145 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
146 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
147 (void) fprintf(stderr, " -l dump label contents\n");
148 (void) fprintf(stderr, " -L disable leak tracking (do not "
149 "load spacemaps)\n");
150 (void) fprintf(stderr, " -R read and display block from a "
151 "device\n\n");
152 (void) fprintf(stderr, " Below options are intended for use "
153 "with other options (except -l):\n");
154 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
155 "panic recovery (-AA) or both (-AAA)\n");
156 (void) fprintf(stderr, " -F attempt automatic rewind within "
157 "safe range of transaction groups\n");
158 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
159 "cachefile\n");
160 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
161 "work with dataset)\n");
162 (void) fprintf(stderr, " -e pool is exported/destroyed/"
163 "has altroot/not in a cachefile\n");
164 (void) fprintf(stderr, " -p <path> -- use one or more with "
165 "-e to specify path to vdev dir\n");
166 (void) fprintf(stderr, " -P print numbers in parseable form\n");
167 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
168 "searching for uberblocks\n");
169 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
170 "specify the maximum number of checksumming I/Os "
171 "[default is 200]\n");
172 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
173 "to make only that option verbose\n");
174 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
175 exit(1);
176 }
177
178 /*
179 * Called for usage errors that are discovered after a call to spa_open(),
180 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
181 */
182
183 static void
184 fatal(const char *fmt, ...)
185 {
186 va_list ap;
187
188 va_start(ap, fmt);
189 (void) fprintf(stderr, "%s: ", cmdname);
190 (void) vfprintf(stderr, fmt, ap);
191 va_end(ap);
192 (void) fprintf(stderr, "\n");
193
194 exit(1);
195 }
196
197 /* ARGSUSED */
198 static void
199 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
200 {
201 nvlist_t *nv;
202 size_t nvsize = *(uint64_t *)data;
203 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
204
205 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
206
207 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
208
209 umem_free(packed, nvsize);
210
211 dump_nvlist(nv, 8);
212
213 nvlist_free(nv);
214 }
215
216 /* ARGSUSED */
217 static void
218 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
219 {
220 spa_history_phys_t *shp = data;
221
222 if (shp == NULL)
223 return;
224
225 (void) printf("\t\tpool_create_len = %llu\n",
226 (u_longlong_t)shp->sh_pool_create_len);
227 (void) printf("\t\tphys_max_off = %llu\n",
228 (u_longlong_t)shp->sh_phys_max_off);
229 (void) printf("\t\tbof = %llu\n",
230 (u_longlong_t)shp->sh_bof);
231 (void) printf("\t\teof = %llu\n",
232 (u_longlong_t)shp->sh_eof);
233 (void) printf("\t\trecords_lost = %llu\n",
234 (u_longlong_t)shp->sh_records_lost);
235 }
236
237 static void
238 zdb_nicenum(uint64_t num, char *buf)
239 {
240 if (dump_opt['P'])
241 (void) sprintf(buf, "%llu", (longlong_t)num);
242 else
243 nicenum(num, buf);
244 }
245
246 const char histo_stars[] = "****************************************";
247 const int histo_width = sizeof (histo_stars) - 1;
248
249 static void
250 dump_histogram(const uint64_t *histo, int size, int offset)
251 {
252 int i;
253 int minidx = size - 1;
254 int maxidx = 0;
255 uint64_t max = 0;
256
257 for (i = 0; i < size; i++) {
258 if (histo[i] > max)
259 max = histo[i];
260 if (histo[i] > 0 && i > maxidx)
261 maxidx = i;
262 if (histo[i] > 0 && i < minidx)
263 minidx = i;
264 }
265
266 if (max < histo_width)
267 max = histo_width;
268
269 for (i = minidx; i <= maxidx; i++) {
270 (void) printf("\t\t\t%3u: %6llu %s\n",
271 i + offset, (u_longlong_t)histo[i],
272 &histo_stars[(max - histo[i]) * histo_width / max]);
273 }
274 }
275
276 static void
277 dump_zap_stats(objset_t *os, uint64_t object)
278 {
279 int error;
280 zap_stats_t zs;
281
282 error = zap_get_stats(os, object, &zs);
283 if (error)
284 return;
285
286 if (zs.zs_ptrtbl_len == 0) {
287 ASSERT(zs.zs_num_blocks == 1);
288 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
289 (u_longlong_t)zs.zs_blocksize,
290 (u_longlong_t)zs.zs_num_entries);
291 return;
292 }
293
294 (void) printf("\tFat ZAP stats:\n");
295
296 (void) printf("\t\tPointer table:\n");
297 (void) printf("\t\t\t%llu elements\n",
298 (u_longlong_t)zs.zs_ptrtbl_len);
299 (void) printf("\t\t\tzt_blk: %llu\n",
300 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
301 (void) printf("\t\t\tzt_numblks: %llu\n",
302 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
303 (void) printf("\t\t\tzt_shift: %llu\n",
304 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
305 (void) printf("\t\t\tzt_blks_copied: %llu\n",
306 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
307 (void) printf("\t\t\tzt_nextblk: %llu\n",
308 (u_longlong_t)zs.zs_ptrtbl_nextblk);
309
310 (void) printf("\t\tZAP entries: %llu\n",
311 (u_longlong_t)zs.zs_num_entries);
312 (void) printf("\t\tLeaf blocks: %llu\n",
313 (u_longlong_t)zs.zs_num_leafs);
314 (void) printf("\t\tTotal blocks: %llu\n",
315 (u_longlong_t)zs.zs_num_blocks);
316 (void) printf("\t\tzap_block_type: 0x%llx\n",
317 (u_longlong_t)zs.zs_block_type);
318 (void) printf("\t\tzap_magic: 0x%llx\n",
319 (u_longlong_t)zs.zs_magic);
320 (void) printf("\t\tzap_salt: 0x%llx\n",
321 (u_longlong_t)zs.zs_salt);
322
323 (void) printf("\t\tLeafs with 2^n pointers:\n");
324 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
325
326 (void) printf("\t\tBlocks with n*5 entries:\n");
327 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
328
329 (void) printf("\t\tBlocks n/10 full:\n");
330 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
331
332 (void) printf("\t\tEntries with n chunks:\n");
333 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
334
335 (void) printf("\t\tBuckets with n entries:\n");
336 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
337 }
338
339 /*ARGSUSED*/
340 static void
341 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
342 {
343 }
344
345 /*ARGSUSED*/
346 static void
347 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
348 {
349 (void) printf("\tUNKNOWN OBJECT TYPE\n");
350 }
351
352 /*ARGSUSED*/
353 void
354 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
355 {
356 }
357
358 /*ARGSUSED*/
359 static void
360 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
361 {
362 }
363
364 /*ARGSUSED*/
365 static void
366 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
367 {
368 zap_cursor_t zc;
369 zap_attribute_t attr;
370 void *prop;
371 int i;
372
373 dump_zap_stats(os, object);
374 (void) printf("\n");
375
376 for (zap_cursor_init(&zc, os, object);
377 zap_cursor_retrieve(&zc, &attr) == 0;
378 zap_cursor_advance(&zc)) {
379 (void) printf("\t\t%s = ", attr.za_name);
380 if (attr.za_num_integers == 0) {
381 (void) printf("\n");
382 continue;
383 }
384 prop = umem_zalloc(attr.za_num_integers *
385 attr.za_integer_length, UMEM_NOFAIL);
386 (void) zap_lookup(os, object, attr.za_name,
387 attr.za_integer_length, attr.za_num_integers, prop);
388 if (attr.za_integer_length == 1) {
389 (void) printf("%s", (char *)prop);
390 } else {
391 for (i = 0; i < attr.za_num_integers; i++) {
392 switch (attr.za_integer_length) {
393 case 2:
394 (void) printf("%u ",
395 ((uint16_t *)prop)[i]);
396 break;
397 case 4:
398 (void) printf("%u ",
399 ((uint32_t *)prop)[i]);
400 break;
401 case 8:
402 (void) printf("%lld ",
403 (u_longlong_t)((int64_t *)prop)[i]);
404 break;
405 }
406 }
407 }
408 (void) printf("\n");
409 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
410 }
411 zap_cursor_fini(&zc);
412 }
413
414 /*ARGSUSED*/
415 static void
416 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
417 {
418 dump_zap_stats(os, object);
419 /* contents are printed elsewhere, properly decoded */
420 }
421
422 /*ARGSUSED*/
423 static void
424 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
425 {
426 zap_cursor_t zc;
427 zap_attribute_t attr;
428
429 dump_zap_stats(os, object);
430 (void) printf("\n");
431
432 for (zap_cursor_init(&zc, os, object);
433 zap_cursor_retrieve(&zc, &attr) == 0;
434 zap_cursor_advance(&zc)) {
435 (void) printf("\t\t%s = ", attr.za_name);
436 if (attr.za_num_integers == 0) {
437 (void) printf("\n");
438 continue;
439 }
440 (void) printf(" %llx : [%d:%d:%d]\n",
441 (u_longlong_t)attr.za_first_integer,
442 (int)ATTR_LENGTH(attr.za_first_integer),
443 (int)ATTR_BSWAP(attr.za_first_integer),
444 (int)ATTR_NUM(attr.za_first_integer));
445 }
446 zap_cursor_fini(&zc);
447 }
448
449 /*ARGSUSED*/
450 static void
451 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
452 {
453 zap_cursor_t zc;
454 zap_attribute_t attr;
455 uint16_t *layout_attrs;
456 int i;
457
458 dump_zap_stats(os, object);
459 (void) printf("\n");
460
461 for (zap_cursor_init(&zc, os, object);
462 zap_cursor_retrieve(&zc, &attr) == 0;
463 zap_cursor_advance(&zc)) {
464 (void) printf("\t\t%s = [", attr.za_name);
465 if (attr.za_num_integers == 0) {
466 (void) printf("\n");
467 continue;
468 }
469
470 VERIFY(attr.za_integer_length == 2);
471 layout_attrs = umem_zalloc(attr.za_num_integers *
472 attr.za_integer_length, UMEM_NOFAIL);
473
474 VERIFY(zap_lookup(os, object, attr.za_name,
475 attr.za_integer_length,
476 attr.za_num_integers, layout_attrs) == 0);
477
478 for (i = 0; i != attr.za_num_integers; i++)
479 (void) printf(" %d ", (int)layout_attrs[i]);
480 (void) printf("]\n");
481 umem_free(layout_attrs,
482 attr.za_num_integers * attr.za_integer_length);
483 }
484 zap_cursor_fini(&zc);
485 }
486
487 /*ARGSUSED*/
488 static void
489 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
490 {
491 zap_cursor_t zc;
492 zap_attribute_t attr;
493 const char *typenames[] = {
494 /* 0 */ "not specified",
495 /* 1 */ "FIFO",
496 /* 2 */ "Character Device",
497 /* 3 */ "3 (invalid)",
498 /* 4 */ "Directory",
499 /* 5 */ "5 (invalid)",
500 /* 6 */ "Block Device",
501 /* 7 */ "7 (invalid)",
502 /* 8 */ "Regular File",
503 /* 9 */ "9 (invalid)",
504 /* 10 */ "Symbolic Link",
505 /* 11 */ "11 (invalid)",
506 /* 12 */ "Socket",
507 /* 13 */ "Door",
508 /* 14 */ "Event Port",
509 /* 15 */ "15 (invalid)",
510 };
511
512 dump_zap_stats(os, object);
513 (void) printf("\n");
514
515 for (zap_cursor_init(&zc, os, object);
516 zap_cursor_retrieve(&zc, &attr) == 0;
517 zap_cursor_advance(&zc)) {
518 (void) printf("\t\t%s = %lld (type: %s)\n",
519 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
520 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
521 }
522 zap_cursor_fini(&zc);
523 }
524
525 int
526 get_dtl_refcount(vdev_t *vd)
527 {
528 int refcount = 0;
529 int c;
530
531 if (vd->vdev_ops->vdev_op_leaf) {
532 space_map_t *sm = vd->vdev_dtl_sm;
533
534 if (sm != NULL &&
535 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
536 return (1);
537 return (0);
538 }
539
540 for (c = 0; c < vd->vdev_children; c++)
541 refcount += get_dtl_refcount(vd->vdev_child[c]);
542 return (refcount);
543 }
544
545 int
546 get_metaslab_refcount(vdev_t *vd)
547 {
548 int refcount = 0;
549 int c, m;
550
551 if (vd->vdev_top == vd && !vd->vdev_removing) {
552 for (m = 0; m < vd->vdev_ms_count; m++) {
553 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
554
555 if (sm != NULL &&
556 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
557 refcount++;
558 }
559 }
560 for (c = 0; c < vd->vdev_children; c++)
561 refcount += get_metaslab_refcount(vd->vdev_child[c]);
562
563 return (refcount);
564 }
565
566 static int
567 verify_spacemap_refcounts(spa_t *spa)
568 {
569 uint64_t expected_refcount = 0;
570 uint64_t actual_refcount;
571
572 (void) feature_get_refcount(spa,
573 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
574 &expected_refcount);
575 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
576 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
577
578 if (expected_refcount != actual_refcount) {
579 (void) printf("space map refcount mismatch: expected %lld != "
580 "actual %lld\n",
581 (longlong_t)expected_refcount,
582 (longlong_t)actual_refcount);
583 return (2);
584 }
585 return (0);
586 }
587
588 static void
589 dump_spacemap(objset_t *os, space_map_t *sm)
590 {
591 uint64_t alloc, offset, entry;
592 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
593 "INVALID", "INVALID", "INVALID", "INVALID" };
594
595 if (sm == NULL)
596 return;
597
598 /*
599 * Print out the freelist entries in both encoded and decoded form.
600 */
601 alloc = 0;
602 for (offset = 0; offset < space_map_length(sm);
603 offset += sizeof (entry)) {
604 uint8_t mapshift = sm->sm_shift;
605
606 VERIFY0(dmu_read(os, space_map_object(sm), offset,
607 sizeof (entry), &entry, DMU_READ_PREFETCH));
608 if (SM_DEBUG_DECODE(entry)) {
609
610 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
611 (u_longlong_t)(offset / sizeof (entry)),
612 ddata[SM_DEBUG_ACTION_DECODE(entry)],
613 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
614 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
615 } else {
616 (void) printf("\t [%6llu] %c range:"
617 " %010llx-%010llx size: %06llx\n",
618 (u_longlong_t)(offset / sizeof (entry)),
619 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
620 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
621 mapshift) + sm->sm_start),
622 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
623 mapshift) + sm->sm_start +
624 (SM_RUN_DECODE(entry) << mapshift)),
625 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
626 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
627 alloc += SM_RUN_DECODE(entry) << mapshift;
628 else
629 alloc -= SM_RUN_DECODE(entry) << mapshift;
630 }
631 }
632 if (alloc != space_map_allocated(sm)) {
633 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
634 "with space map summary (%llu)\n",
635 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
636 }
637 }
638
639 static void
640 dump_metaslab_stats(metaslab_t *msp)
641 {
642 char maxbuf[32];
643 range_tree_t *rt = msp->ms_tree;
644 avl_tree_t *t = &msp->ms_size_tree;
645 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
646
647 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
648
649 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
650 "segments", avl_numnodes(t), "maxsize", maxbuf,
651 "freepct", free_pct);
652 (void) printf("\tIn-memory histogram:\n");
653 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
654 }
655
656 static void
657 dump_metaslab(metaslab_t *msp)
658 {
659 vdev_t *vd = msp->ms_group->mg_vd;
660 spa_t *spa = vd->vdev_spa;
661 space_map_t *sm = msp->ms_sm;
662 char freebuf[32];
663
664 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
665
666 (void) printf(
667 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
668 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
669 (u_longlong_t)space_map_object(sm), freebuf);
670
671 if (dump_opt['m'] > 2 && !dump_opt['L']) {
672 mutex_enter(&msp->ms_lock);
673 metaslab_load_wait(msp);
674 if (!msp->ms_loaded) {
675 VERIFY0(metaslab_load(msp));
676 range_tree_stat_verify(msp->ms_tree);
677 }
678 dump_metaslab_stats(msp);
679 metaslab_unload(msp);
680 mutex_exit(&msp->ms_lock);
681 }
682
683 if (dump_opt['m'] > 1 && sm != NULL &&
684 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
685 /*
686 * The space map histogram represents free space in chunks
687 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
688 */
689 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
690 (u_longlong_t)msp->ms_fragmentation);
691 dump_histogram(sm->sm_phys->smp_histogram,
692 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
693 }
694
695 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
696 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
697
698 mutex_enter(&msp->ms_lock);
699 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
700 mutex_exit(&msp->ms_lock);
701 }
702 }
703
704 static void
705 print_vdev_metaslab_header(vdev_t *vd)
706 {
707 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
708 (u_longlong_t)vd->vdev_id,
709 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
710 "offset", "spacemap", "free");
711 (void) printf("\t%15s %19s %15s %10s\n",
712 "---------------", "-------------------",
713 "---------------", "-------------");
714 }
715
716 static void
717 dump_metaslab_groups(spa_t *spa)
718 {
719 vdev_t *rvd = spa->spa_root_vdev;
720 metaslab_class_t *mc = spa_normal_class(spa);
721 uint64_t fragmentation;
722 int c;
723
724 metaslab_class_histogram_verify(mc);
725
726 for (c = 0; c < rvd->vdev_children; c++) {
727 vdev_t *tvd = rvd->vdev_child[c];
728 metaslab_group_t *mg = tvd->vdev_mg;
729
730 if (mg->mg_class != mc)
731 continue;
732
733 metaslab_group_histogram_verify(mg);
734 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
735
736 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
737 "fragmentation",
738 (u_longlong_t)tvd->vdev_id,
739 (u_longlong_t)tvd->vdev_ms_count);
740 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
741 (void) printf("%3s\n", "-");
742 } else {
743 (void) printf("%3llu%%\n",
744 (u_longlong_t)mg->mg_fragmentation);
745 }
746 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
747 }
748
749 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
750 fragmentation = metaslab_class_fragmentation(mc);
751 if (fragmentation == ZFS_FRAG_INVALID)
752 (void) printf("\t%3s\n", "-");
753 else
754 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
755 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
756 }
757
758 static void
759 dump_metaslabs(spa_t *spa)
760 {
761 vdev_t *vd, *rvd = spa->spa_root_vdev;
762 uint64_t m, c = 0, children = rvd->vdev_children;
763
764 (void) printf("\nMetaslabs:\n");
765
766 if (!dump_opt['d'] && zopt_objects > 0) {
767 c = zopt_object[0];
768
769 if (c >= children)
770 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
771
772 if (zopt_objects > 1) {
773 vd = rvd->vdev_child[c];
774 print_vdev_metaslab_header(vd);
775
776 for (m = 1; m < zopt_objects; m++) {
777 if (zopt_object[m] < vd->vdev_ms_count)
778 dump_metaslab(
779 vd->vdev_ms[zopt_object[m]]);
780 else
781 (void) fprintf(stderr, "bad metaslab "
782 "number %llu\n",
783 (u_longlong_t)zopt_object[m]);
784 }
785 (void) printf("\n");
786 return;
787 }
788 children = c + 1;
789 }
790 for (; c < children; c++) {
791 vd = rvd->vdev_child[c];
792 print_vdev_metaslab_header(vd);
793
794 for (m = 0; m < vd->vdev_ms_count; m++)
795 dump_metaslab(vd->vdev_ms[m]);
796 (void) printf("\n");
797 }
798 }
799
800 static void
801 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
802 {
803 const ddt_phys_t *ddp = dde->dde_phys;
804 const ddt_key_t *ddk = &dde->dde_key;
805 char *types[4] = { "ditto", "single", "double", "triple" };
806 char blkbuf[BP_SPRINTF_LEN];
807 blkptr_t blk;
808 int p;
809
810 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
811 if (ddp->ddp_phys_birth == 0)
812 continue;
813 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
814 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
815 (void) printf("index %llx refcnt %llu %s %s\n",
816 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
817 types[p], blkbuf);
818 }
819 }
820
821 static void
822 dump_dedup_ratio(const ddt_stat_t *dds)
823 {
824 double rL, rP, rD, D, dedup, compress, copies;
825
826 if (dds->dds_blocks == 0)
827 return;
828
829 rL = (double)dds->dds_ref_lsize;
830 rP = (double)dds->dds_ref_psize;
831 rD = (double)dds->dds_ref_dsize;
832 D = (double)dds->dds_dsize;
833
834 dedup = rD / D;
835 compress = rL / rP;
836 copies = rD / rP;
837
838 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
839 "dedup * compress / copies = %.2f\n\n",
840 dedup, compress, copies, dedup * compress / copies);
841 }
842
843 static void
844 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
845 {
846 char name[DDT_NAMELEN];
847 ddt_entry_t dde;
848 uint64_t walk = 0;
849 dmu_object_info_t doi;
850 uint64_t count, dspace, mspace;
851 int error;
852
853 error = ddt_object_info(ddt, type, class, &doi);
854
855 if (error == ENOENT)
856 return;
857 ASSERT(error == 0);
858
859 error = ddt_object_count(ddt, type, class, &count);
860 ASSERT(error == 0);
861 if (count == 0)
862 return;
863
864 dspace = doi.doi_physical_blocks_512 << 9;
865 mspace = doi.doi_fill_count * doi.doi_data_block_size;
866
867 ddt_object_name(ddt, type, class, name);
868
869 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
870 name,
871 (u_longlong_t)count,
872 (u_longlong_t)(dspace / count),
873 (u_longlong_t)(mspace / count));
874
875 if (dump_opt['D'] < 3)
876 return;
877
878 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
879
880 if (dump_opt['D'] < 4)
881 return;
882
883 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
884 return;
885
886 (void) printf("%s contents:\n\n", name);
887
888 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
889 dump_dde(ddt, &dde, walk);
890
891 ASSERT(error == ENOENT);
892
893 (void) printf("\n");
894 }
895
896 static void
897 dump_all_ddts(spa_t *spa)
898 {
899 ddt_histogram_t ddh_total;
900 ddt_stat_t dds_total;
901 enum zio_checksum c;
902 enum ddt_type type;
903 enum ddt_class class;
904
905 bzero(&ddh_total, sizeof (ddt_histogram_t));
906 bzero(&dds_total, sizeof (ddt_stat_t));
907
908 for (c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
909 ddt_t *ddt = spa->spa_ddt[c];
910 for (type = 0; type < DDT_TYPES; type++) {
911 for (class = 0; class < DDT_CLASSES;
912 class++) {
913 dump_ddt(ddt, type, class);
914 }
915 }
916 }
917
918 ddt_get_dedup_stats(spa, &dds_total);
919
920 if (dds_total.dds_blocks == 0) {
921 (void) printf("All DDTs are empty\n");
922 return;
923 }
924
925 (void) printf("\n");
926
927 if (dump_opt['D'] > 1) {
928 (void) printf("DDT histogram (aggregated over all DDTs):\n");
929 ddt_get_dedup_histogram(spa, &ddh_total);
930 zpool_dump_ddt(&dds_total, &ddh_total);
931 }
932
933 dump_dedup_ratio(&dds_total);
934 }
935
936 static void
937 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
938 {
939 char *prefix = arg;
940
941 (void) printf("%s [%llu,%llu) length %llu\n",
942 prefix,
943 (u_longlong_t)start,
944 (u_longlong_t)(start + size),
945 (u_longlong_t)(size));
946 }
947
948 static void
949 dump_dtl(vdev_t *vd, int indent)
950 {
951 spa_t *spa = vd->vdev_spa;
952 boolean_t required;
953 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
954 char prefix[256];
955 int c, t;
956
957 spa_vdev_state_enter(spa, SCL_NONE);
958 required = vdev_dtl_required(vd);
959 (void) spa_vdev_state_exit(spa, NULL, 0);
960
961 if (indent == 0)
962 (void) printf("\nDirty time logs:\n\n");
963
964 (void) printf("\t%*s%s [%s]\n", indent, "",
965 vd->vdev_path ? vd->vdev_path :
966 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
967 required ? "DTL-required" : "DTL-expendable");
968
969 for (t = 0; t < DTL_TYPES; t++) {
970 range_tree_t *rt = vd->vdev_dtl[t];
971 if (range_tree_space(rt) == 0)
972 continue;
973 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
974 indent + 2, "", name[t]);
975 mutex_enter(rt->rt_lock);
976 range_tree_walk(rt, dump_dtl_seg, prefix);
977 mutex_exit(rt->rt_lock);
978 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
979 dump_spacemap(spa->spa_meta_objset,
980 vd->vdev_dtl_sm);
981 }
982
983 for (c = 0; c < vd->vdev_children; c++)
984 dump_dtl(vd->vdev_child[c], indent + 4);
985 }
986
987 static void
988 dump_history(spa_t *spa)
989 {
990 nvlist_t **events = NULL;
991 char buf[SPA_MAXBLOCKSIZE];
992 uint64_t resid, len, off = 0;
993 uint_t num = 0;
994 int error;
995 time_t tsec;
996 struct tm t;
997 char tbuf[30];
998 char internalstr[MAXPATHLEN];
999 int i;
1000
1001 do {
1002 len = sizeof (buf);
1003
1004 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1005 (void) fprintf(stderr, "Unable to read history: "
1006 "error %d\n", error);
1007 return;
1008 }
1009
1010 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1011 break;
1012
1013 off -= resid;
1014 } while (len != 0);
1015
1016 (void) printf("\nHistory:\n");
1017 for (i = 0; i < num; i++) {
1018 uint64_t time, txg, ievent;
1019 char *cmd, *intstr;
1020 boolean_t printed = B_FALSE;
1021
1022 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1023 &time) != 0)
1024 goto next;
1025 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1026 &cmd) != 0) {
1027 if (nvlist_lookup_uint64(events[i],
1028 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1029 goto next;
1030 verify(nvlist_lookup_uint64(events[i],
1031 ZPOOL_HIST_TXG, &txg) == 0);
1032 verify(nvlist_lookup_string(events[i],
1033 ZPOOL_HIST_INT_STR, &intstr) == 0);
1034 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1035 goto next;
1036
1037 (void) snprintf(internalstr,
1038 sizeof (internalstr),
1039 "[internal %s txg:%lld] %s",
1040 zfs_history_event_names[ievent],
1041 (longlong_t)txg, intstr);
1042 cmd = internalstr;
1043 }
1044 tsec = time;
1045 (void) localtime_r(&tsec, &t);
1046 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1047 (void) printf("%s %s\n", tbuf, cmd);
1048 printed = B_TRUE;
1049
1050 next:
1051 if (dump_opt['h'] > 1) {
1052 if (!printed)
1053 (void) printf("unrecognized record:\n");
1054 dump_nvlist(events[i], 2);
1055 }
1056 }
1057 }
1058
1059 /*ARGSUSED*/
1060 static void
1061 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1062 {
1063 }
1064
1065 static uint64_t
1066 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1067 const zbookmark_phys_t *zb)
1068 {
1069 if (dnp == NULL) {
1070 ASSERT(zb->zb_level < 0);
1071 if (zb->zb_object == 0)
1072 return (zb->zb_blkid);
1073 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1074 }
1075
1076 ASSERT(zb->zb_level >= 0);
1077
1078 return ((zb->zb_blkid <<
1079 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1080 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1081 }
1082
1083 static void
1084 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1085 {
1086 const dva_t *dva = bp->blk_dva;
1087 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1088 int i;
1089
1090 if (dump_opt['b'] >= 6) {
1091 snprintf_blkptr(blkbuf, buflen, bp);
1092 return;
1093 }
1094
1095 if (BP_IS_EMBEDDED(bp)) {
1096 (void) sprintf(blkbuf,
1097 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1098 (int)BPE_GET_ETYPE(bp),
1099 (u_longlong_t)BPE_GET_LSIZE(bp),
1100 (u_longlong_t)BPE_GET_PSIZE(bp),
1101 (u_longlong_t)bp->blk_birth);
1102 return;
1103 }
1104
1105 blkbuf[0] = '\0';
1106
1107 for (i = 0; i < ndvas; i++)
1108 (void) snprintf(blkbuf + strlen(blkbuf),
1109 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1110 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1111 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1112 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1113
1114 if (BP_IS_HOLE(bp)) {
1115 (void) snprintf(blkbuf + strlen(blkbuf),
1116 buflen - strlen(blkbuf), "B=%llu",
1117 (u_longlong_t)bp->blk_birth);
1118 } else {
1119 (void) snprintf(blkbuf + strlen(blkbuf),
1120 buflen - strlen(blkbuf),
1121 "%llxL/%llxP F=%llu B=%llu/%llu",
1122 (u_longlong_t)BP_GET_LSIZE(bp),
1123 (u_longlong_t)BP_GET_PSIZE(bp),
1124 (u_longlong_t)BP_GET_FILL(bp),
1125 (u_longlong_t)bp->blk_birth,
1126 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1127 }
1128 }
1129
1130 static void
1131 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1132 const dnode_phys_t *dnp)
1133 {
1134 char blkbuf[BP_SPRINTF_LEN];
1135 int l;
1136
1137 if (!BP_IS_EMBEDDED(bp)) {
1138 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1139 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1140 }
1141
1142 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1143
1144 ASSERT(zb->zb_level >= 0);
1145
1146 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1147 if (l == zb->zb_level) {
1148 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1149 } else {
1150 (void) printf(" ");
1151 }
1152 }
1153
1154 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1155 (void) printf("%s\n", blkbuf);
1156 }
1157
1158 static int
1159 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1160 blkptr_t *bp, const zbookmark_phys_t *zb)
1161 {
1162 int err = 0;
1163
1164 if (bp->blk_birth == 0)
1165 return (0);
1166
1167 print_indirect(bp, zb, dnp);
1168
1169 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1170 uint32_t flags = ARC_WAIT;
1171 int i;
1172 blkptr_t *cbp;
1173 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1174 arc_buf_t *buf;
1175 uint64_t fill = 0;
1176
1177 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1178 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1179 if (err)
1180 return (err);
1181 ASSERT(buf->b_data);
1182
1183 /* recursively visit blocks below this */
1184 cbp = buf->b_data;
1185 for (i = 0; i < epb; i++, cbp++) {
1186 zbookmark_phys_t czb;
1187
1188 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1189 zb->zb_level - 1,
1190 zb->zb_blkid * epb + i);
1191 err = visit_indirect(spa, dnp, cbp, &czb);
1192 if (err)
1193 break;
1194 fill += BP_GET_FILL(cbp);
1195 }
1196 if (!err)
1197 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1198 (void) arc_buf_remove_ref(buf, &buf);
1199 }
1200
1201 return (err);
1202 }
1203
1204 /*ARGSUSED*/
1205 static void
1206 dump_indirect(dnode_t *dn)
1207 {
1208 dnode_phys_t *dnp = dn->dn_phys;
1209 int j;
1210 zbookmark_phys_t czb;
1211
1212 (void) printf("Indirect blocks:\n");
1213
1214 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1215 dn->dn_object, dnp->dn_nlevels - 1, 0);
1216 for (j = 0; j < dnp->dn_nblkptr; j++) {
1217 czb.zb_blkid = j;
1218 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1219 &dnp->dn_blkptr[j], &czb);
1220 }
1221
1222 (void) printf("\n");
1223 }
1224
1225 /*ARGSUSED*/
1226 static void
1227 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1228 {
1229 dsl_dir_phys_t *dd = data;
1230 time_t crtime;
1231 char nice[32];
1232
1233 if (dd == NULL)
1234 return;
1235
1236 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1237
1238 crtime = dd->dd_creation_time;
1239 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1240 (void) printf("\t\thead_dataset_obj = %llu\n",
1241 (u_longlong_t)dd->dd_head_dataset_obj);
1242 (void) printf("\t\tparent_dir_obj = %llu\n",
1243 (u_longlong_t)dd->dd_parent_obj);
1244 (void) printf("\t\torigin_obj = %llu\n",
1245 (u_longlong_t)dd->dd_origin_obj);
1246 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1247 (u_longlong_t)dd->dd_child_dir_zapobj);
1248 zdb_nicenum(dd->dd_used_bytes, nice);
1249 (void) printf("\t\tused_bytes = %s\n", nice);
1250 zdb_nicenum(dd->dd_compressed_bytes, nice);
1251 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1252 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1253 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1254 zdb_nicenum(dd->dd_quota, nice);
1255 (void) printf("\t\tquota = %s\n", nice);
1256 zdb_nicenum(dd->dd_reserved, nice);
1257 (void) printf("\t\treserved = %s\n", nice);
1258 (void) printf("\t\tprops_zapobj = %llu\n",
1259 (u_longlong_t)dd->dd_props_zapobj);
1260 (void) printf("\t\tdeleg_zapobj = %llu\n",
1261 (u_longlong_t)dd->dd_deleg_zapobj);
1262 (void) printf("\t\tflags = %llx\n",
1263 (u_longlong_t)dd->dd_flags);
1264
1265 #define DO(which) \
1266 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1267 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1268 DO(HEAD);
1269 DO(SNAP);
1270 DO(CHILD);
1271 DO(CHILD_RSRV);
1272 DO(REFRSRV);
1273 #undef DO
1274 }
1275
1276 /*ARGSUSED*/
1277 static void
1278 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1279 {
1280 dsl_dataset_phys_t *ds = data;
1281 time_t crtime;
1282 char used[32], compressed[32], uncompressed[32], unique[32];
1283 char blkbuf[BP_SPRINTF_LEN];
1284
1285 if (ds == NULL)
1286 return;
1287
1288 ASSERT(size == sizeof (*ds));
1289 crtime = ds->ds_creation_time;
1290 zdb_nicenum(ds->ds_referenced_bytes, used);
1291 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1292 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1293 zdb_nicenum(ds->ds_unique_bytes, unique);
1294 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1295
1296 (void) printf("\t\tdir_obj = %llu\n",
1297 (u_longlong_t)ds->ds_dir_obj);
1298 (void) printf("\t\tprev_snap_obj = %llu\n",
1299 (u_longlong_t)ds->ds_prev_snap_obj);
1300 (void) printf("\t\tprev_snap_txg = %llu\n",
1301 (u_longlong_t)ds->ds_prev_snap_txg);
1302 (void) printf("\t\tnext_snap_obj = %llu\n",
1303 (u_longlong_t)ds->ds_next_snap_obj);
1304 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1305 (u_longlong_t)ds->ds_snapnames_zapobj);
1306 (void) printf("\t\tnum_children = %llu\n",
1307 (u_longlong_t)ds->ds_num_children);
1308 (void) printf("\t\tuserrefs_obj = %llu\n",
1309 (u_longlong_t)ds->ds_userrefs_obj);
1310 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1311 (void) printf("\t\tcreation_txg = %llu\n",
1312 (u_longlong_t)ds->ds_creation_txg);
1313 (void) printf("\t\tdeadlist_obj = %llu\n",
1314 (u_longlong_t)ds->ds_deadlist_obj);
1315 (void) printf("\t\tused_bytes = %s\n", used);
1316 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1317 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1318 (void) printf("\t\tunique = %s\n", unique);
1319 (void) printf("\t\tfsid_guid = %llu\n",
1320 (u_longlong_t)ds->ds_fsid_guid);
1321 (void) printf("\t\tguid = %llu\n",
1322 (u_longlong_t)ds->ds_guid);
1323 (void) printf("\t\tflags = %llx\n",
1324 (u_longlong_t)ds->ds_flags);
1325 (void) printf("\t\tnext_clones_obj = %llu\n",
1326 (u_longlong_t)ds->ds_next_clones_obj);
1327 (void) printf("\t\tprops_obj = %llu\n",
1328 (u_longlong_t)ds->ds_props_obj);
1329 (void) printf("\t\tbp = %s\n", blkbuf);
1330 }
1331
1332 /* ARGSUSED */
1333 static int
1334 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1335 {
1336 char blkbuf[BP_SPRINTF_LEN];
1337
1338 if (bp->blk_birth != 0) {
1339 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1340 (void) printf("\t%s\n", blkbuf);
1341 }
1342 return (0);
1343 }
1344
1345 static void
1346 dump_bptree(objset_t *os, uint64_t obj, char *name)
1347 {
1348 char bytes[32];
1349 bptree_phys_t *bt;
1350 dmu_buf_t *db;
1351
1352 if (dump_opt['d'] < 3)
1353 return;
1354
1355 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1356 bt = db->db_data;
1357 zdb_nicenum(bt->bt_bytes, bytes);
1358 (void) printf("\n %s: %llu datasets, %s\n",
1359 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1360 dmu_buf_rele(db, FTAG);
1361
1362 if (dump_opt['d'] < 5)
1363 return;
1364
1365 (void) printf("\n");
1366
1367 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1368 }
1369
1370 /* ARGSUSED */
1371 static int
1372 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1373 {
1374 char blkbuf[BP_SPRINTF_LEN];
1375
1376 ASSERT(bp->blk_birth != 0);
1377 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1378 (void) printf("\t%s\n", blkbuf);
1379 return (0);
1380 }
1381
1382 static void
1383 dump_bpobj(bpobj_t *bpo, char *name, int indent)
1384 {
1385 char bytes[32];
1386 char comp[32];
1387 char uncomp[32];
1388 uint64_t i;
1389
1390 if (dump_opt['d'] < 3)
1391 return;
1392
1393 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1394 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1395 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1396 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1397 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1398 "%llu subobjs, %s (%s/%s comp)\n",
1399 indent * 8, name,
1400 (u_longlong_t)bpo->bpo_object,
1401 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1402 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1403 bytes, comp, uncomp);
1404
1405 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1406 uint64_t subobj;
1407 bpobj_t subbpo;
1408 int error;
1409 VERIFY0(dmu_read(bpo->bpo_os,
1410 bpo->bpo_phys->bpo_subobjs,
1411 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1412 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1413 if (error != 0) {
1414 (void) printf("ERROR %u while trying to open "
1415 "subobj id %llu\n",
1416 error, (u_longlong_t)subobj);
1417 continue;
1418 }
1419 dump_bpobj(&subbpo, "subobj", indent + 1);
1420 }
1421 } else {
1422 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1423 indent * 8, name,
1424 (u_longlong_t)bpo->bpo_object,
1425 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1426 bytes);
1427 }
1428
1429 if (dump_opt['d'] < 5)
1430 return;
1431
1432
1433 if (indent == 0) {
1434 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1435 (void) printf("\n");
1436 }
1437 }
1438
1439 static void
1440 dump_deadlist(dsl_deadlist_t *dl)
1441 {
1442 dsl_deadlist_entry_t *dle;
1443 uint64_t unused;
1444 char bytes[32];
1445 char comp[32];
1446 char uncomp[32];
1447
1448 if (dump_opt['d'] < 3)
1449 return;
1450
1451 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1452 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1453 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1454 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1455 bytes, comp, uncomp);
1456
1457 if (dump_opt['d'] < 4)
1458 return;
1459
1460 (void) printf("\n");
1461
1462 /* force the tree to be loaded */
1463 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1464
1465 for (dle = avl_first(&dl->dl_tree); dle;
1466 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1467 if (dump_opt['d'] >= 5) {
1468 char buf[128];
1469 (void) snprintf(buf, sizeof (buf),
1470 "mintxg %llu -> obj %llu",
1471 (longlong_t)dle->dle_mintxg,
1472 (longlong_t)dle->dle_bpobj.bpo_object);
1473
1474 dump_bpobj(&dle->dle_bpobj, buf, 0);
1475 } else {
1476 (void) printf("mintxg %llu -> obj %llu\n",
1477 (longlong_t)dle->dle_mintxg,
1478 (longlong_t)dle->dle_bpobj.bpo_object);
1479
1480 }
1481 }
1482 }
1483
1484 static avl_tree_t idx_tree;
1485 static avl_tree_t domain_tree;
1486 static boolean_t fuid_table_loaded;
1487 static boolean_t sa_loaded;
1488 sa_attr_type_t *sa_attr_table;
1489
1490 static void
1491 fuid_table_destroy(void)
1492 {
1493 if (fuid_table_loaded) {
1494 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1495 fuid_table_loaded = B_FALSE;
1496 }
1497 }
1498
1499 /*
1500 * print uid or gid information.
1501 * For normal POSIX id just the id is printed in decimal format.
1502 * For CIFS files with FUID the fuid is printed in hex followed by
1503 * the domain-rid string.
1504 */
1505 static void
1506 print_idstr(uint64_t id, const char *id_type)
1507 {
1508 if (FUID_INDEX(id)) {
1509 char *domain;
1510
1511 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1512 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1513 (u_longlong_t)id, domain, (int)FUID_RID(id));
1514 } else {
1515 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1516 }
1517
1518 }
1519
1520 static void
1521 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1522 {
1523 uint32_t uid_idx, gid_idx;
1524
1525 uid_idx = FUID_INDEX(uid);
1526 gid_idx = FUID_INDEX(gid);
1527
1528 /* Load domain table, if not already loaded */
1529 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1530 uint64_t fuid_obj;
1531
1532 /* first find the fuid object. It lives in the master node */
1533 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1534 8, 1, &fuid_obj) == 0);
1535 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1536 (void) zfs_fuid_table_load(os, fuid_obj,
1537 &idx_tree, &domain_tree);
1538 fuid_table_loaded = B_TRUE;
1539 }
1540
1541 print_idstr(uid, "uid");
1542 print_idstr(gid, "gid");
1543 }
1544
1545 static void
1546 dump_znode_sa_xattr(sa_handle_t *hdl)
1547 {
1548 nvlist_t *sa_xattr;
1549 nvpair_t *elem = NULL;
1550 int sa_xattr_size = 0;
1551 int sa_xattr_entries = 0;
1552 int error;
1553 char *sa_xattr_packed;
1554
1555 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size);
1556 if (error || sa_xattr_size == 0)
1557 return;
1558
1559 sa_xattr_packed = malloc(sa_xattr_size);
1560 if (sa_xattr_packed == NULL)
1561 return;
1562
1563 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR],
1564 sa_xattr_packed, sa_xattr_size);
1565 if (error) {
1566 free(sa_xattr_packed);
1567 return;
1568 }
1569
1570 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0);
1571 if (error) {
1572 free(sa_xattr_packed);
1573 return;
1574 }
1575
1576 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL)
1577 sa_xattr_entries++;
1578
1579 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n",
1580 sa_xattr_size, sa_xattr_entries);
1581 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) {
1582 uchar_t *value;
1583 uint_t cnt, idx;
1584
1585 (void) printf("\t\t%s = ", nvpair_name(elem));
1586 nvpair_value_byte_array(elem, &value, &cnt);
1587 for (idx = 0; idx < cnt; ++idx) {
1588 if (isprint(value[idx]))
1589 (void) putchar(value[idx]);
1590 else
1591 (void) printf("\\%3.3o", value[idx]);
1592 }
1593 (void) putchar('\n');
1594 }
1595
1596 nvlist_free(sa_xattr);
1597 free(sa_xattr_packed);
1598 }
1599
1600 /*ARGSUSED*/
1601 static void
1602 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1603 {
1604 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1605 sa_handle_t *hdl;
1606 uint64_t xattr, rdev, gen;
1607 uint64_t uid, gid, mode, fsize, parent, links;
1608 uint64_t pflags;
1609 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1610 time_t z_crtime, z_atime, z_mtime, z_ctime;
1611 sa_bulk_attr_t bulk[12];
1612 int idx = 0;
1613 int error;
1614
1615 if (!sa_loaded) {
1616 uint64_t sa_attrs = 0;
1617 uint64_t version;
1618
1619 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1620 8, 1, &version) == 0);
1621 if (version >= ZPL_VERSION_SA) {
1622 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1623 8, 1, &sa_attrs) == 0);
1624 }
1625 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1626 ZPL_END, &sa_attr_table)) != 0) {
1627 (void) printf("sa_setup failed errno %d, can't "
1628 "display znode contents\n", error);
1629 return;
1630 }
1631 sa_loaded = B_TRUE;
1632 }
1633
1634 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1635 (void) printf("Failed to get handle for SA znode\n");
1636 return;
1637 }
1638
1639 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1640 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1641 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1642 &links, 8);
1643 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1644 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1645 &mode, 8);
1646 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1647 NULL, &parent, 8);
1648 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1649 &fsize, 8);
1650 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1651 acctm, 16);
1652 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1653 modtm, 16);
1654 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1655 crtm, 16);
1656 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1657 chgtm, 16);
1658 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1659 &pflags, 8);
1660
1661 if (sa_bulk_lookup(hdl, bulk, idx)) {
1662 (void) sa_handle_destroy(hdl);
1663 return;
1664 }
1665
1666 error = zfs_obj_to_path(os, object, path, sizeof (path));
1667 if (error != 0) {
1668 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1669 (u_longlong_t)object);
1670 }
1671 if (dump_opt['d'] < 3) {
1672 (void) printf("\t%s\n", path);
1673 (void) sa_handle_destroy(hdl);
1674 return;
1675 }
1676
1677 z_crtime = (time_t)crtm[0];
1678 z_atime = (time_t)acctm[0];
1679 z_mtime = (time_t)modtm[0];
1680 z_ctime = (time_t)chgtm[0];
1681
1682 (void) printf("\tpath %s\n", path);
1683 dump_uidgid(os, uid, gid);
1684 (void) printf("\tatime %s", ctime(&z_atime));
1685 (void) printf("\tmtime %s", ctime(&z_mtime));
1686 (void) printf("\tctime %s", ctime(&z_ctime));
1687 (void) printf("\tcrtime %s", ctime(&z_crtime));
1688 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1689 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1690 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1691 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1692 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1693 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1694 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1695 sizeof (uint64_t)) == 0)
1696 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1697 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1698 sizeof (uint64_t)) == 0)
1699 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1700 dump_znode_sa_xattr(hdl);
1701 sa_handle_destroy(hdl);
1702 }
1703
1704 /*ARGSUSED*/
1705 static void
1706 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1707 {
1708 }
1709
1710 /*ARGSUSED*/
1711 static void
1712 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1713 {
1714 }
1715
1716 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1717 dump_none, /* unallocated */
1718 dump_zap, /* object directory */
1719 dump_uint64, /* object array */
1720 dump_none, /* packed nvlist */
1721 dump_packed_nvlist, /* packed nvlist size */
1722 dump_none, /* bplist */
1723 dump_none, /* bplist header */
1724 dump_none, /* SPA space map header */
1725 dump_none, /* SPA space map */
1726 dump_none, /* ZIL intent log */
1727 dump_dnode, /* DMU dnode */
1728 dump_dmu_objset, /* DMU objset */
1729 dump_dsl_dir, /* DSL directory */
1730 dump_zap, /* DSL directory child map */
1731 dump_zap, /* DSL dataset snap map */
1732 dump_zap, /* DSL props */
1733 dump_dsl_dataset, /* DSL dataset */
1734 dump_znode, /* ZFS znode */
1735 dump_acl, /* ZFS V0 ACL */
1736 dump_uint8, /* ZFS plain file */
1737 dump_zpldir, /* ZFS directory */
1738 dump_zap, /* ZFS master node */
1739 dump_zap, /* ZFS delete queue */
1740 dump_uint8, /* zvol object */
1741 dump_zap, /* zvol prop */
1742 dump_uint8, /* other uint8[] */
1743 dump_uint64, /* other uint64[] */
1744 dump_zap, /* other ZAP */
1745 dump_zap, /* persistent error log */
1746 dump_uint8, /* SPA history */
1747 dump_history_offsets, /* SPA history offsets */
1748 dump_zap, /* Pool properties */
1749 dump_zap, /* DSL permissions */
1750 dump_acl, /* ZFS ACL */
1751 dump_uint8, /* ZFS SYSACL */
1752 dump_none, /* FUID nvlist */
1753 dump_packed_nvlist, /* FUID nvlist size */
1754 dump_zap, /* DSL dataset next clones */
1755 dump_zap, /* DSL scrub queue */
1756 dump_zap, /* ZFS user/group used */
1757 dump_zap, /* ZFS user/group quota */
1758 dump_zap, /* snapshot refcount tags */
1759 dump_ddt_zap, /* DDT ZAP object */
1760 dump_zap, /* DDT statistics */
1761 dump_znode, /* SA object */
1762 dump_zap, /* SA Master Node */
1763 dump_sa_attrs, /* SA attribute registration */
1764 dump_sa_layouts, /* SA attribute layouts */
1765 dump_zap, /* DSL scrub translations */
1766 dump_none, /* fake dedup BP */
1767 dump_zap, /* deadlist */
1768 dump_none, /* deadlist hdr */
1769 dump_zap, /* dsl clones */
1770 dump_none, /* bpobj subobjs */
1771 dump_unknown, /* Unknown type, must be last */
1772 };
1773
1774 static void
1775 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1776 {
1777 dmu_buf_t *db = NULL;
1778 dmu_object_info_t doi;
1779 dnode_t *dn;
1780 void *bonus = NULL;
1781 size_t bsize = 0;
1782 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1783 char bonus_size[32];
1784 char aux[50];
1785 int error;
1786
1787 if (*print_header) {
1788 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1789 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1790 "%full", "type");
1791 *print_header = 0;
1792 }
1793
1794 if (object == 0) {
1795 dn = DMU_META_DNODE(os);
1796 } else {
1797 error = dmu_bonus_hold(os, object, FTAG, &db);
1798 if (error)
1799 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1800 object, error);
1801 bonus = db->db_data;
1802 bsize = db->db_size;
1803 dn = DB_DNODE((dmu_buf_impl_t *)db);
1804 }
1805 dmu_object_info_from_dnode(dn, &doi);
1806
1807 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1808 zdb_nicenum(doi.doi_data_block_size, dblk);
1809 zdb_nicenum(doi.doi_max_offset, lsize);
1810 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1811 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1812 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1813 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1814 doi.doi_max_offset);
1815
1816 aux[0] = '\0';
1817
1818 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1819 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1820 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1821 }
1822
1823 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1824 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1825 ZDB_COMPRESS_NAME(doi.doi_compress));
1826 }
1827
1828 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1829 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1830 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1831
1832 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1833 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1834 "", "", "", "", "", bonus_size, "bonus",
1835 ZDB_OT_NAME(doi.doi_bonus_type));
1836 }
1837
1838 if (verbosity >= 4) {
1839 (void) printf("\tdnode flags: %s%s%s\n",
1840 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1841 "USED_BYTES " : "",
1842 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1843 "USERUSED_ACCOUNTED " : "",
1844 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1845 "SPILL_BLKPTR" : "");
1846 (void) printf("\tdnode maxblkid: %llu\n",
1847 (longlong_t)dn->dn_phys->dn_maxblkid);
1848
1849 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1850 bonus, bsize);
1851 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1852 *print_header = 1;
1853 }
1854
1855 if (verbosity >= 5)
1856 dump_indirect(dn);
1857
1858 if (verbosity >= 5) {
1859 /*
1860 * Report the list of segments that comprise the object.
1861 */
1862 uint64_t start = 0;
1863 uint64_t end;
1864 uint64_t blkfill = 1;
1865 int minlvl = 1;
1866
1867 if (dn->dn_type == DMU_OT_DNODE) {
1868 minlvl = 0;
1869 blkfill = DNODES_PER_BLOCK;
1870 }
1871
1872 for (;;) {
1873 char segsize[32];
1874 error = dnode_next_offset(dn,
1875 0, &start, minlvl, blkfill, 0);
1876 if (error)
1877 break;
1878 end = start;
1879 error = dnode_next_offset(dn,
1880 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1881 zdb_nicenum(end - start, segsize);
1882 (void) printf("\t\tsegment [%016llx, %016llx)"
1883 " size %5s\n", (u_longlong_t)start,
1884 (u_longlong_t)end, segsize);
1885 if (error)
1886 break;
1887 start = end;
1888 }
1889 }
1890
1891 if (db != NULL)
1892 dmu_buf_rele(db, FTAG);
1893 }
1894
1895 static char *objset_types[DMU_OST_NUMTYPES] = {
1896 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1897
1898 static void
1899 dump_dir(objset_t *os)
1900 {
1901 dmu_objset_stats_t dds;
1902 uint64_t object, object_count;
1903 uint64_t refdbytes, usedobjs, scratch;
1904 char numbuf[32];
1905 char blkbuf[BP_SPRINTF_LEN + 20];
1906 char osname[MAXNAMELEN];
1907 char *type = "UNKNOWN";
1908 int verbosity = dump_opt['d'];
1909 int print_header = 1;
1910 int i, error;
1911
1912 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1913 dmu_objset_fast_stat(os, &dds);
1914 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1915
1916 if (dds.dds_type < DMU_OST_NUMTYPES)
1917 type = objset_types[dds.dds_type];
1918
1919 if (dds.dds_type == DMU_OST_META) {
1920 dds.dds_creation_txg = TXG_INITIAL;
1921 usedobjs = BP_GET_FILL(os->os_rootbp);
1922 refdbytes = os->os_spa->spa_dsl_pool->
1923 dp_mos_dir->dd_phys->dd_used_bytes;
1924 } else {
1925 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1926 }
1927
1928 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
1929
1930 zdb_nicenum(refdbytes, numbuf);
1931
1932 if (verbosity >= 4) {
1933 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
1934 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
1935 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
1936 } else {
1937 blkbuf[0] = '\0';
1938 }
1939
1940 dmu_objset_name(os, osname);
1941
1942 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1943 "%s, %llu objects%s\n",
1944 osname, type, (u_longlong_t)dmu_objset_id(os),
1945 (u_longlong_t)dds.dds_creation_txg,
1946 numbuf, (u_longlong_t)usedobjs, blkbuf);
1947
1948 if (zopt_objects != 0) {
1949 for (i = 0; i < zopt_objects; i++)
1950 dump_object(os, zopt_object[i], verbosity,
1951 &print_header);
1952 (void) printf("\n");
1953 return;
1954 }
1955
1956 if (dump_opt['i'] != 0 || verbosity >= 2)
1957 dump_intent_log(dmu_objset_zil(os));
1958
1959 if (dmu_objset_ds(os) != NULL)
1960 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1961
1962 if (verbosity < 2)
1963 return;
1964
1965 if (BP_IS_HOLE(os->os_rootbp))
1966 return;
1967
1968 dump_object(os, 0, verbosity, &print_header);
1969 object_count = 0;
1970 if (DMU_USERUSED_DNODE(os) != NULL &&
1971 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1972 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1973 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1974 }
1975
1976 object = 0;
1977 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1978 dump_object(os, object, verbosity, &print_header);
1979 object_count++;
1980 }
1981
1982 ASSERT3U(object_count, ==, usedobjs);
1983
1984 (void) printf("\n");
1985
1986 if (error != ESRCH) {
1987 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1988 abort();
1989 }
1990 }
1991
1992 static void
1993 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
1994 {
1995 time_t timestamp = ub->ub_timestamp;
1996
1997 (void) printf("%s", header ? header : "");
1998 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1999 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2000 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2001 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2002 (void) printf("\ttimestamp = %llu UTC = %s",
2003 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2004 if (dump_opt['u'] >= 3) {
2005 char blkbuf[BP_SPRINTF_LEN];
2006 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2007 (void) printf("\trootbp = %s\n", blkbuf);
2008 }
2009 (void) printf("%s", footer ? footer : "");
2010 }
2011
2012 static void
2013 dump_config(spa_t *spa)
2014 {
2015 dmu_buf_t *db;
2016 size_t nvsize = 0;
2017 int error = 0;
2018
2019
2020 error = dmu_bonus_hold(spa->spa_meta_objset,
2021 spa->spa_config_object, FTAG, &db);
2022
2023 if (error == 0) {
2024 nvsize = *(uint64_t *)db->db_data;
2025 dmu_buf_rele(db, FTAG);
2026
2027 (void) printf("\nMOS Configuration:\n");
2028 dump_packed_nvlist(spa->spa_meta_objset,
2029 spa->spa_config_object, (void *)&nvsize, 1);
2030 } else {
2031 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2032 (u_longlong_t)spa->spa_config_object, error);
2033 }
2034 }
2035
2036 static void
2037 dump_cachefile(const char *cachefile)
2038 {
2039 int fd;
2040 struct stat64 statbuf;
2041 char *buf;
2042 nvlist_t *config;
2043
2044 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2045 (void) printf("cannot open '%s': %s\n", cachefile,
2046 strerror(errno));
2047 exit(1);
2048 }
2049
2050 if (fstat64(fd, &statbuf) != 0) {
2051 (void) printf("failed to stat '%s': %s\n", cachefile,
2052 strerror(errno));
2053 exit(1);
2054 }
2055
2056 if ((buf = malloc(statbuf.st_size)) == NULL) {
2057 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2058 (u_longlong_t)statbuf.st_size);
2059 exit(1);
2060 }
2061
2062 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2063 (void) fprintf(stderr, "failed to read %llu bytes\n",
2064 (u_longlong_t)statbuf.st_size);
2065 exit(1);
2066 }
2067
2068 (void) close(fd);
2069
2070 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2071 (void) fprintf(stderr, "failed to unpack nvlist\n");
2072 exit(1);
2073 }
2074
2075 free(buf);
2076
2077 dump_nvlist(config, 0);
2078
2079 nvlist_free(config);
2080 }
2081
2082 #define ZDB_MAX_UB_HEADER_SIZE 32
2083
2084 static void
2085 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2086 {
2087 vdev_t vd;
2088 vdev_t *vdp = &vd;
2089 char header[ZDB_MAX_UB_HEADER_SIZE];
2090 int i;
2091
2092 vd.vdev_ashift = ashift;
2093 vdp->vdev_top = vdp;
2094
2095 for (i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2096 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2097 uberblock_t *ub = (void *)((char *)lbl + uoff);
2098
2099 if (uberblock_verify(ub))
2100 continue;
2101 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2102 "Uberblock[%d]\n", i);
2103 dump_uberblock(ub, header, "");
2104 }
2105 }
2106
2107 static void
2108 dump_label(const char *dev)
2109 {
2110 int fd;
2111 vdev_label_t label;
2112 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
2113 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2114 struct stat64 statbuf;
2115 uint64_t psize, ashift;
2116 int len = strlen(dev) + 1;
2117 int l;
2118
2119 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
2120 len++;
2121 path = malloc(len);
2122 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
2123 } else {
2124 path = strdup(dev);
2125 }
2126
2127 if ((fd = open64(path, O_RDONLY)) < 0) {
2128 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2129 free(path);
2130 exit(1);
2131 }
2132
2133 if (fstat64_blk(fd, &statbuf) != 0) {
2134 (void) printf("failed to stat '%s': %s\n", path,
2135 strerror(errno));
2136 free(path);
2137 (void) close(fd);
2138 exit(1);
2139 }
2140
2141 psize = statbuf.st_size;
2142 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2143
2144 for (l = 0; l < VDEV_LABELS; l++) {
2145 nvlist_t *config = NULL;
2146
2147 (void) printf("--------------------------------------------\n");
2148 (void) printf("LABEL %d\n", l);
2149 (void) printf("--------------------------------------------\n");
2150
2151 if (pread64(fd, &label, sizeof (label),
2152 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2153 (void) printf("failed to read label %d\n", l);
2154 continue;
2155 }
2156
2157 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2158 (void) printf("failed to unpack label %d\n", l);
2159 ashift = SPA_MINBLOCKSHIFT;
2160 } else {
2161 nvlist_t *vdev_tree = NULL;
2162
2163 dump_nvlist(config, 4);
2164 if ((nvlist_lookup_nvlist(config,
2165 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2166 (nvlist_lookup_uint64(vdev_tree,
2167 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2168 ashift = SPA_MINBLOCKSHIFT;
2169 nvlist_free(config);
2170 }
2171 if (dump_opt['u'])
2172 dump_label_uberblocks(&label, ashift);
2173 }
2174
2175 free(path);
2176 (void) close(fd);
2177 }
2178
2179 /*ARGSUSED*/
2180 static int
2181 dump_one_dir(const char *dsname, void *arg)
2182 {
2183 int error;
2184 objset_t *os;
2185
2186 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
2187 if (error) {
2188 (void) printf("Could not open %s, error %d\n", dsname, error);
2189 return (0);
2190 }
2191 dump_dir(os);
2192 dmu_objset_disown(os, FTAG);
2193 fuid_table_destroy();
2194 sa_loaded = B_FALSE;
2195 return (0);
2196 }
2197
2198 /*
2199 * Block statistics.
2200 */
2201 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1)
2202 typedef struct zdb_blkstats {
2203 uint64_t zb_asize;
2204 uint64_t zb_lsize;
2205 uint64_t zb_psize;
2206 uint64_t zb_count;
2207 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2208 } zdb_blkstats_t;
2209
2210 /*
2211 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2212 */
2213 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2214 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2215 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2216 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2217
2218 static char *zdb_ot_extname[] = {
2219 "deferred free",
2220 "dedup ditto",
2221 "other",
2222 "Total",
2223 };
2224
2225 #define ZB_TOTAL DN_MAX_LEVELS
2226
2227 typedef struct zdb_cb {
2228 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2229 uint64_t zcb_dedup_asize;
2230 uint64_t zcb_dedup_blocks;
2231 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2232 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2233 [BPE_PAYLOAD_SIZE];
2234 uint64_t zcb_start;
2235 uint64_t zcb_lastprint;
2236 uint64_t zcb_totalasize;
2237 uint64_t zcb_errors[256];
2238 int zcb_readfails;
2239 int zcb_haderrors;
2240 spa_t *zcb_spa;
2241 } zdb_cb_t;
2242
2243 static void
2244 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2245 dmu_object_type_t type)
2246 {
2247 uint64_t refcnt = 0;
2248 int i;
2249
2250 ASSERT(type < ZDB_OT_TOTAL);
2251
2252 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2253 return;
2254
2255 for (i = 0; i < 4; i++) {
2256 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2257 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2258 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2259
2260 zb->zb_asize += BP_GET_ASIZE(bp);
2261 zb->zb_lsize += BP_GET_LSIZE(bp);
2262 zb->zb_psize += BP_GET_PSIZE(bp);
2263 zb->zb_count++;
2264 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++;
2265 }
2266
2267 if (BP_IS_EMBEDDED(bp)) {
2268 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2269 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2270 [BPE_GET_PSIZE(bp)]++;
2271 return;
2272 }
2273
2274 if (dump_opt['L'])
2275 return;
2276
2277 if (BP_GET_DEDUP(bp)) {
2278 ddt_t *ddt;
2279 ddt_entry_t *dde;
2280
2281 ddt = ddt_select(zcb->zcb_spa, bp);
2282 ddt_enter(ddt);
2283 dde = ddt_lookup(ddt, bp, B_FALSE);
2284
2285 if (dde == NULL) {
2286 refcnt = 0;
2287 } else {
2288 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2289 ddt_phys_decref(ddp);
2290 refcnt = ddp->ddp_refcnt;
2291 if (ddt_phys_total_refcnt(dde) == 0)
2292 ddt_remove(ddt, dde);
2293 }
2294 ddt_exit(ddt);
2295 }
2296
2297 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2298 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2299 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2300 }
2301
2302 static void
2303 zdb_blkptr_done(zio_t *zio)
2304 {
2305 spa_t *spa = zio->io_spa;
2306 blkptr_t *bp = zio->io_bp;
2307 int ioerr = zio->io_error;
2308 zdb_cb_t *zcb = zio->io_private;
2309 zbookmark_phys_t *zb = &zio->io_bookmark;
2310
2311 zio_data_buf_free(zio->io_data, zio->io_size);
2312
2313 mutex_enter(&spa->spa_scrub_lock);
2314 spa->spa_scrub_inflight--;
2315 cv_broadcast(&spa->spa_scrub_io_cv);
2316
2317 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2318 char blkbuf[BP_SPRINTF_LEN];
2319
2320 zcb->zcb_haderrors = 1;
2321 zcb->zcb_errors[ioerr]++;
2322
2323 if (dump_opt['b'] >= 2)
2324 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2325 else
2326 blkbuf[0] = '\0';
2327
2328 (void) printf("zdb_blkptr_cb: "
2329 "Got error %d reading "
2330 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2331 ioerr,
2332 (u_longlong_t)zb->zb_objset,
2333 (u_longlong_t)zb->zb_object,
2334 (u_longlong_t)zb->zb_level,
2335 (u_longlong_t)zb->zb_blkid,
2336 blkbuf);
2337 }
2338 mutex_exit(&spa->spa_scrub_lock);
2339 }
2340
2341 static int
2342 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2343 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2344 {
2345 zdb_cb_t *zcb = arg;
2346 dmu_object_type_t type;
2347 boolean_t is_metadata;
2348
2349 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2350 char blkbuf[BP_SPRINTF_LEN];
2351 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2352 (void) printf("objset %llu object %llu "
2353 "level %lld offset 0x%llx %s\n",
2354 (u_longlong_t)zb->zb_objset,
2355 (u_longlong_t)zb->zb_object,
2356 (longlong_t)zb->zb_level,
2357 (u_longlong_t)blkid2offset(dnp, bp, zb),
2358 blkbuf);
2359 }
2360
2361 if (BP_IS_HOLE(bp))
2362 return (0);
2363
2364 type = BP_GET_TYPE(bp);
2365
2366 zdb_count_block(zcb, zilog, bp,
2367 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2368
2369 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2370
2371 if (!BP_IS_EMBEDDED(bp) &&
2372 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2373 size_t size = BP_GET_PSIZE(bp);
2374 void *data = zio_data_buf_alloc(size);
2375 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2376
2377 /* If it's an intent log block, failure is expected. */
2378 if (zb->zb_level == ZB_ZIL_LEVEL)
2379 flags |= ZIO_FLAG_SPECULATIVE;
2380
2381 mutex_enter(&spa->spa_scrub_lock);
2382 while (spa->spa_scrub_inflight > max_inflight)
2383 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2384 spa->spa_scrub_inflight++;
2385 mutex_exit(&spa->spa_scrub_lock);
2386
2387 zio_nowait(zio_read(NULL, spa, bp, data, size,
2388 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2389 }
2390
2391 zcb->zcb_readfails = 0;
2392
2393 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) &&
2394 gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2395 uint64_t now = gethrtime();
2396 char buf[10];
2397 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2398 int kb_per_sec =
2399 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2400 int sec_remaining =
2401 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2402
2403 zfs_nicenum(bytes, buf, sizeof (buf));
2404 (void) fprintf(stderr,
2405 "\r%5s completed (%4dMB/s) "
2406 "estimated time remaining: %uhr %02umin %02usec ",
2407 buf, kb_per_sec / 1024,
2408 sec_remaining / 60 / 60,
2409 sec_remaining / 60 % 60,
2410 sec_remaining % 60);
2411
2412 zcb->zcb_lastprint = now;
2413 }
2414
2415 return (0);
2416 }
2417
2418 static void
2419 zdb_leak(void *arg, uint64_t start, uint64_t size)
2420 {
2421 vdev_t *vd = arg;
2422
2423 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2424 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2425 }
2426
2427 static metaslab_ops_t zdb_metaslab_ops = {
2428 NULL /* alloc */
2429 };
2430
2431 static void
2432 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2433 {
2434 ddt_bookmark_t ddb = { 0 };
2435 ddt_entry_t dde;
2436 int error;
2437 int p;
2438
2439 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2440 blkptr_t blk;
2441 ddt_phys_t *ddp = dde.dde_phys;
2442
2443 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2444 return;
2445
2446 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2447
2448 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2449 if (ddp->ddp_phys_birth == 0)
2450 continue;
2451 ddt_bp_create(ddb.ddb_checksum,
2452 &dde.dde_key, ddp, &blk);
2453 if (p == DDT_PHYS_DITTO) {
2454 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2455 } else {
2456 zcb->zcb_dedup_asize +=
2457 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2458 zcb->zcb_dedup_blocks++;
2459 }
2460 }
2461 if (!dump_opt['L']) {
2462 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2463 ddt_enter(ddt);
2464 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2465 ddt_exit(ddt);
2466 }
2467 }
2468
2469 ASSERT(error == ENOENT);
2470 }
2471
2472 static void
2473 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2474 {
2475 zcb->zcb_spa = spa;
2476 int c, m;
2477
2478 if (!dump_opt['L']) {
2479 vdev_t *rvd = spa->spa_root_vdev;
2480 for (c = 0; c < rvd->vdev_children; c++) {
2481 vdev_t *vd = rvd->vdev_child[c];
2482 for (m = 0; m < vd->vdev_ms_count; m++) {
2483 metaslab_t *msp = vd->vdev_ms[m];
2484 mutex_enter(&msp->ms_lock);
2485 metaslab_unload(msp);
2486
2487 /*
2488 * For leak detection, we overload the metaslab
2489 * ms_tree to contain allocated segments
2490 * instead of free segments. As a result,
2491 * we can't use the normal metaslab_load/unload
2492 * interfaces.
2493 */
2494 if (msp->ms_sm != NULL) {
2495 msp->ms_ops = &zdb_metaslab_ops;
2496 VERIFY0(space_map_load(msp->ms_sm,
2497 msp->ms_tree, SM_ALLOC));
2498 msp->ms_loaded = B_TRUE;
2499 }
2500 mutex_exit(&msp->ms_lock);
2501 }
2502 }
2503 }
2504
2505 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2506
2507 zdb_ddt_leak_init(spa, zcb);
2508
2509 spa_config_exit(spa, SCL_CONFIG, FTAG);
2510 }
2511
2512 static void
2513 zdb_leak_fini(spa_t *spa)
2514 {
2515 int c, m;
2516
2517 if (!dump_opt['L']) {
2518 vdev_t *rvd = spa->spa_root_vdev;
2519 for (c = 0; c < rvd->vdev_children; c++) {
2520 vdev_t *vd = rvd->vdev_child[c];
2521 for (m = 0; m < vd->vdev_ms_count; m++) {
2522 metaslab_t *msp = vd->vdev_ms[m];
2523 mutex_enter(&msp->ms_lock);
2524
2525 /*
2526 * The ms_tree has been overloaded to
2527 * contain allocated segments. Now that we
2528 * finished traversing all blocks, any
2529 * block that remains in the ms_tree
2530 * represents an allocated block that we
2531 * did not claim during the traversal.
2532 * Claimed blocks would have been removed
2533 * from the ms_tree.
2534 */
2535 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2536 msp->ms_loaded = B_FALSE;
2537
2538 mutex_exit(&msp->ms_lock);
2539 }
2540 }
2541 }
2542 }
2543
2544 /* ARGSUSED */
2545 static int
2546 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2547 {
2548 zdb_cb_t *zcb = arg;
2549
2550 if (dump_opt['b'] >= 5) {
2551 char blkbuf[BP_SPRINTF_LEN];
2552 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2553 (void) printf("[%s] %s\n",
2554 "deferred free", blkbuf);
2555 }
2556 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2557 return (0);
2558 }
2559
2560 static int
2561 dump_block_stats(spa_t *spa)
2562 {
2563 zdb_cb_t zcb;
2564 zdb_blkstats_t *zb, *tzb;
2565 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2566 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2567 boolean_t leaks = B_FALSE;
2568 int e;
2569 bp_embedded_type_t i;
2570
2571 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2572 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2573 (dump_opt['c'] == 1) ? "metadata " : "",
2574 dump_opt['c'] ? "checksums " : "",
2575 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2576 !dump_opt['L'] ? "nothing leaked " : "");
2577
2578 /*
2579 * Load all space maps as SM_ALLOC maps, then traverse the pool
2580 * claiming each block we discover. If the pool is perfectly
2581 * consistent, the space maps will be empty when we're done.
2582 * Anything left over is a leak; any block we can't claim (because
2583 * it's not part of any space map) is a double allocation,
2584 * reference to a freed block, or an unclaimed log block.
2585 */
2586 bzero(&zcb, sizeof (zdb_cb_t));
2587 zdb_leak_init(spa, &zcb);
2588
2589 /*
2590 * If there's a deferred-free bplist, process that first.
2591 */
2592 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2593 count_block_cb, &zcb, NULL);
2594 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2595 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2596 count_block_cb, &zcb, NULL);
2597 }
2598 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2599 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2600 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2601 &zcb, NULL));
2602 }
2603
2604 if (dump_opt['c'] > 1)
2605 flags |= TRAVERSE_PREFETCH_DATA;
2606
2607 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2608 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2609 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2610
2611 /*
2612 * If we've traversed the data blocks then we need to wait for those
2613 * I/Os to complete. We leverage "The Godfather" zio to wait on
2614 * all async I/Os to complete.
2615 */
2616 if (dump_opt['c']) {
2617 (void) zio_wait(spa->spa_async_zio_root);
2618 spa->spa_async_zio_root = zio_root(spa, NULL, NULL,
2619 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2620 ZIO_FLAG_GODFATHER);
2621 }
2622
2623 if (zcb.zcb_haderrors) {
2624 (void) printf("\nError counts:\n\n");
2625 (void) printf("\t%5s %s\n", "errno", "count");
2626 for (e = 0; e < 256; e++) {
2627 if (zcb.zcb_errors[e] != 0) {
2628 (void) printf("\t%5d %llu\n",
2629 e, (u_longlong_t)zcb.zcb_errors[e]);
2630 }
2631 }
2632 }
2633
2634 /*
2635 * Report any leaked segments.
2636 */
2637 zdb_leak_fini(spa);
2638
2639 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2640
2641 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2642 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2643
2644 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2645 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2646
2647 if (total_found == total_alloc) {
2648 if (!dump_opt['L'])
2649 (void) printf("\n\tNo leaks (block sum matches space"
2650 " maps exactly)\n");
2651 } else {
2652 (void) printf("block traversal size %llu != alloc %llu "
2653 "(%s %lld)\n",
2654 (u_longlong_t)total_found,
2655 (u_longlong_t)total_alloc,
2656 (dump_opt['L']) ? "unreachable" : "leaked",
2657 (longlong_t)(total_alloc - total_found));
2658 leaks = B_TRUE;
2659 }
2660
2661 if (tzb->zb_count == 0)
2662 return (2);
2663
2664 (void) printf("\n");
2665 (void) printf("\tbp count: %10llu\n",
2666 (u_longlong_t)tzb->zb_count);
2667 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2668 (u_longlong_t)tzb->zb_lsize,
2669 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2670 (void) printf("\tbp physical: %10llu avg:"
2671 " %6llu compression: %6.2f\n",
2672 (u_longlong_t)tzb->zb_psize,
2673 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2674 (double)tzb->zb_lsize / tzb->zb_psize);
2675 (void) printf("\tbp allocated: %10llu avg:"
2676 " %6llu compression: %6.2f\n",
2677 (u_longlong_t)tzb->zb_asize,
2678 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2679 (double)tzb->zb_lsize / tzb->zb_asize);
2680 (void) printf("\tbp deduped: %10llu ref>1:"
2681 " %6llu deduplication: %6.2f\n",
2682 (u_longlong_t)zcb.zcb_dedup_asize,
2683 (u_longlong_t)zcb.zcb_dedup_blocks,
2684 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2685 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2686 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2687
2688 for (i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2689 if (zcb.zcb_embedded_blocks[i] == 0)
2690 continue;
2691 (void) printf("\n");
2692 (void) printf("\tadditional, non-pointer bps of type %u: "
2693 "%10llu\n",
2694 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2695
2696 if (dump_opt['b'] >= 3) {
2697 (void) printf("\t number of (compressed) bytes: "
2698 "number of bps\n");
2699 dump_histogram(zcb.zcb_embedded_histogram[i],
2700 sizeof (zcb.zcb_embedded_histogram[i]) /
2701 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2702 }
2703 }
2704
2705 if (dump_opt['b'] >= 2) {
2706 int l, t, level;
2707 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2708 "\t avg\t comp\t%%Total\tType\n");
2709
2710 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2711 char csize[32], lsize[32], psize[32], asize[32];
2712 char avg[32];
2713 char *typename;
2714
2715 if (t < DMU_OT_NUMTYPES)
2716 typename = dmu_ot[t].ot_name;
2717 else
2718 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2719
2720 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2721 (void) printf("%6s\t%5s\t%5s\t%5s"
2722 "\t%5s\t%5s\t%6s\t%s\n",
2723 "-",
2724 "-",
2725 "-",
2726 "-",
2727 "-",
2728 "-",
2729 "-",
2730 typename);
2731 continue;
2732 }
2733
2734 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2735 level = (l == -1 ? ZB_TOTAL : l);
2736 zb = &zcb.zcb_type[level][t];
2737
2738 if (zb->zb_asize == 0)
2739 continue;
2740
2741 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2742 continue;
2743
2744 if (level == 0 && zb->zb_asize ==
2745 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2746 continue;
2747
2748 zdb_nicenum(zb->zb_count, csize);
2749 zdb_nicenum(zb->zb_lsize, lsize);
2750 zdb_nicenum(zb->zb_psize, psize);
2751 zdb_nicenum(zb->zb_asize, asize);
2752 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2753
2754 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2755 "\t%5.2f\t%6.2f\t",
2756 csize, lsize, psize, asize, avg,
2757 (double)zb->zb_lsize / zb->zb_psize,
2758 100.0 * zb->zb_asize / tzb->zb_asize);
2759
2760 if (level == ZB_TOTAL)
2761 (void) printf("%s\n", typename);
2762 else
2763 (void) printf(" L%d %s\n",
2764 level, typename);
2765
2766 if (dump_opt['b'] >= 4) {
2767 (void) printf("psize "
2768 "(in 512-byte sectors): "
2769 "number of blocks\n");
2770 dump_histogram(zb->zb_psize_histogram,
2771 PSIZE_HISTO_SIZE, 0);
2772 }
2773 }
2774 }
2775 }
2776
2777 (void) printf("\n");
2778
2779 if (leaks)
2780 return (2);
2781
2782 if (zcb.zcb_haderrors)
2783 return (3);
2784
2785 return (0);
2786 }
2787
2788 typedef struct zdb_ddt_entry {
2789 ddt_key_t zdde_key;
2790 uint64_t zdde_ref_blocks;
2791 uint64_t zdde_ref_lsize;
2792 uint64_t zdde_ref_psize;
2793 uint64_t zdde_ref_dsize;
2794 avl_node_t zdde_node;
2795 } zdb_ddt_entry_t;
2796
2797 /* ARGSUSED */
2798 static int
2799 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2800 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2801 {
2802 avl_tree_t *t = arg;
2803 avl_index_t where;
2804 zdb_ddt_entry_t *zdde, zdde_search;
2805
2806 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
2807 return (0);
2808
2809 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2810 (void) printf("traversing objset %llu, %llu objects, "
2811 "%lu blocks so far\n",
2812 (u_longlong_t)zb->zb_objset,
2813 (u_longlong_t)BP_GET_FILL(bp),
2814 avl_numnodes(t));
2815 }
2816
2817 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2818 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2819 return (0);
2820
2821 ddt_key_fill(&zdde_search.zdde_key, bp);
2822
2823 zdde = avl_find(t, &zdde_search, &where);
2824
2825 if (zdde == NULL) {
2826 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2827 zdde->zdde_key = zdde_search.zdde_key;
2828 avl_insert(t, zdde, where);
2829 }
2830
2831 zdde->zdde_ref_blocks += 1;
2832 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2833 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2834 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2835
2836 return (0);
2837 }
2838
2839 static void
2840 dump_simulated_ddt(spa_t *spa)
2841 {
2842 avl_tree_t t;
2843 void *cookie = NULL;
2844 zdb_ddt_entry_t *zdde;
2845 ddt_histogram_t ddh_total;
2846 ddt_stat_t dds_total;
2847
2848 bzero(&ddh_total, sizeof (ddt_histogram_t));
2849 bzero(&dds_total, sizeof (ddt_stat_t));
2850
2851 avl_create(&t, ddt_entry_compare,
2852 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2853
2854 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2855
2856 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2857 zdb_ddt_add_cb, &t);
2858
2859 spa_config_exit(spa, SCL_CONFIG, FTAG);
2860
2861 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2862 ddt_stat_t dds;
2863 uint64_t refcnt = zdde->zdde_ref_blocks;
2864 ASSERT(refcnt != 0);
2865
2866 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2867 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2868 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2869 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2870
2871 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2872 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2873 dds.dds_ref_psize = zdde->zdde_ref_psize;
2874 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2875
2876 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
2877 &dds, 0);
2878
2879 umem_free(zdde, sizeof (*zdde));
2880 }
2881
2882 avl_destroy(&t);
2883
2884 ddt_histogram_stat(&dds_total, &ddh_total);
2885
2886 (void) printf("Simulated DDT histogram:\n");
2887
2888 zpool_dump_ddt(&dds_total, &ddh_total);
2889
2890 dump_dedup_ratio(&dds_total);
2891 }
2892
2893 static void
2894 dump_zpool(spa_t *spa)
2895 {
2896 dsl_pool_t *dp = spa_get_dsl(spa);
2897 int rc = 0;
2898
2899 if (dump_opt['S']) {
2900 dump_simulated_ddt(spa);
2901 return;
2902 }
2903
2904 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2905 (void) printf("\nCached configuration:\n");
2906 dump_nvlist(spa->spa_config, 8);
2907 }
2908
2909 if (dump_opt['C'])
2910 dump_config(spa);
2911
2912 if (dump_opt['u'])
2913 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2914
2915 if (dump_opt['D'])
2916 dump_all_ddts(spa);
2917
2918 if (dump_opt['d'] > 2 || dump_opt['m'])
2919 dump_metaslabs(spa);
2920 if (dump_opt['M'])
2921 dump_metaslab_groups(spa);
2922
2923 if (dump_opt['d'] || dump_opt['i']) {
2924 dump_dir(dp->dp_meta_objset);
2925 if (dump_opt['d'] >= 3) {
2926 dump_bpobj(&spa->spa_deferred_bpobj,
2927 "Deferred frees", 0);
2928 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2929 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2930 "Pool snapshot frees", 0);
2931 }
2932
2933 if (spa_feature_is_active(spa,
2934 SPA_FEATURE_ASYNC_DESTROY)) {
2935 dump_bptree(spa->spa_meta_objset,
2936 spa->spa_dsl_pool->dp_bptree_obj,
2937 "Pool dataset frees");
2938 }
2939 dump_dtl(spa->spa_root_vdev, 0);
2940 }
2941 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
2942 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
2943 }
2944 if (dump_opt['b'] || dump_opt['c'])
2945 rc = dump_block_stats(spa);
2946
2947 if (rc == 0)
2948 rc = verify_spacemap_refcounts(spa);
2949
2950 if (dump_opt['s'])
2951 show_pool_stats(spa);
2952
2953 if (dump_opt['h'])
2954 dump_history(spa);
2955
2956 if (rc != 0)
2957 exit(rc);
2958 }
2959
2960 #define ZDB_FLAG_CHECKSUM 0x0001
2961 #define ZDB_FLAG_DECOMPRESS 0x0002
2962 #define ZDB_FLAG_BSWAP 0x0004
2963 #define ZDB_FLAG_GBH 0x0008
2964 #define ZDB_FLAG_INDIRECT 0x0010
2965 #define ZDB_FLAG_PHYS 0x0020
2966 #define ZDB_FLAG_RAW 0x0040
2967 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
2968
2969 int flagbits[256];
2970
2971 static void
2972 zdb_print_blkptr(blkptr_t *bp, int flags)
2973 {
2974 char blkbuf[BP_SPRINTF_LEN];
2975
2976 if (flags & ZDB_FLAG_BSWAP)
2977 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
2978
2979 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2980 (void) printf("%s\n", blkbuf);
2981 }
2982
2983 static void
2984 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
2985 {
2986 int i;
2987
2988 for (i = 0; i < nbps; i++)
2989 zdb_print_blkptr(&bp[i], flags);
2990 }
2991
2992 static void
2993 zdb_dump_gbh(void *buf, int flags)
2994 {
2995 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
2996 }
2997
2998 static void
2999 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3000 {
3001 if (flags & ZDB_FLAG_BSWAP)
3002 byteswap_uint64_array(buf, size);
3003 VERIFY(write(fileno(stdout), buf, size) == size);
3004 }
3005
3006 static void
3007 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3008 {
3009 uint64_t *d = (uint64_t *)buf;
3010 int nwords = size / sizeof (uint64_t);
3011 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3012 int i, j;
3013 char *hdr, *c;
3014
3015
3016 if (do_bswap)
3017 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3018 else
3019 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3020
3021 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3022
3023 for (i = 0; i < nwords; i += 2) {
3024 (void) printf("%06llx: %016llx %016llx ",
3025 (u_longlong_t)(i * sizeof (uint64_t)),
3026 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3027 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3028
3029 c = (char *)&d[i];
3030 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3031 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3032 (void) printf("\n");
3033 }
3034 }
3035
3036 /*
3037 * There are two acceptable formats:
3038 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3039 * child[.child]* - For example: 0.1.1
3040 *
3041 * The second form can be used to specify arbitrary vdevs anywhere
3042 * in the heirarchy. For example, in a pool with a mirror of
3043 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3044 */
3045 static vdev_t *
3046 zdb_vdev_lookup(vdev_t *vdev, char *path)
3047 {
3048 char *s, *p, *q;
3049 int i;
3050
3051 if (vdev == NULL)
3052 return (NULL);
3053
3054 /* First, assume the x.x.x.x format */
3055 i = (int)strtoul(path, &s, 10);
3056 if (s == path || (s && *s != '.' && *s != '\0'))
3057 goto name;
3058 if (i < 0 || i >= vdev->vdev_children)
3059 return (NULL);
3060
3061 vdev = vdev->vdev_child[i];
3062 if (*s == '\0')
3063 return (vdev);
3064 return (zdb_vdev_lookup(vdev, s+1));
3065
3066 name:
3067 for (i = 0; i < vdev->vdev_children; i++) {
3068 vdev_t *vc = vdev->vdev_child[i];
3069
3070 if (vc->vdev_path == NULL) {
3071 vc = zdb_vdev_lookup(vc, path);
3072 if (vc == NULL)
3073 continue;
3074 else
3075 return (vc);
3076 }
3077
3078 p = strrchr(vc->vdev_path, '/');
3079 p = p ? p + 1 : vc->vdev_path;
3080 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3081
3082 if (strcmp(vc->vdev_path, path) == 0)
3083 return (vc);
3084 if (strcmp(p, path) == 0)
3085 return (vc);
3086 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3087 return (vc);
3088 }
3089
3090 return (NULL);
3091 }
3092
3093 /*
3094 * Read a block from a pool and print it out. The syntax of the
3095 * block descriptor is:
3096 *
3097 * pool:vdev_specifier:offset:size[:flags]
3098 *
3099 * pool - The name of the pool you wish to read from
3100 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3101 * offset - offset, in hex, in bytes
3102 * size - Amount of data to read, in hex, in bytes
3103 * flags - A string of characters specifying options
3104 * b: Decode a blkptr at given offset within block
3105 * *c: Calculate and display checksums
3106 * d: Decompress data before dumping
3107 * e: Byteswap data before dumping
3108 * g: Display data as a gang block header
3109 * i: Display as an indirect block
3110 * p: Do I/O to physical offset
3111 * r: Dump raw data to stdout
3112 *
3113 * * = not yet implemented
3114 */
3115 static void
3116 zdb_read_block(char *thing, spa_t *spa)
3117 {
3118 blkptr_t blk, *bp = &blk;
3119 dva_t *dva = bp->blk_dva;
3120 int flags = 0;
3121 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3122 zio_t *zio;
3123 vdev_t *vd;
3124 void *pbuf, *lbuf, *buf;
3125 char *s, *p, *dup, *vdev, *flagstr;
3126 int i, error;
3127
3128 dup = strdup(thing);
3129 s = strtok(dup, ":");
3130 vdev = s ? s : "";
3131 s = strtok(NULL, ":");
3132 offset = strtoull(s ? s : "", NULL, 16);
3133 s = strtok(NULL, ":");
3134 size = strtoull(s ? s : "", NULL, 16);
3135 s = strtok(NULL, ":");
3136 flagstr = s ? s : "";
3137
3138 s = NULL;
3139 if (size == 0)
3140 s = "size must not be zero";
3141 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3142 s = "size must be a multiple of sector size";
3143 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3144 s = "offset must be a multiple of sector size";
3145 if (s) {
3146 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3147 free(dup);
3148 return;
3149 }
3150
3151 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3152 for (i = 0; flagstr[i]; i++) {
3153 int bit = flagbits[(uchar_t)flagstr[i]];
3154
3155 if (bit == 0) {
3156 (void) printf("***Invalid flag: %c\n",
3157 flagstr[i]);
3158 continue;
3159 }
3160 flags |= bit;
3161
3162 /* If it's not something with an argument, keep going */
3163 if ((bit & (ZDB_FLAG_CHECKSUM |
3164 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3165 continue;
3166
3167 p = &flagstr[i + 1];
3168 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3169 blkptr_offset = strtoull(p, &p, 16);
3170 if (*p != ':' && *p != '\0') {
3171 (void) printf("***Invalid flag arg: '%s'\n", s);
3172 free(dup);
3173 return;
3174 }
3175 }
3176 }
3177
3178 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3179 if (vd == NULL) {
3180 (void) printf("***Invalid vdev: %s\n", vdev);
3181 free(dup);
3182 return;
3183 } else {
3184 if (vd->vdev_path)
3185 (void) fprintf(stderr, "Found vdev: %s\n",
3186 vd->vdev_path);
3187 else
3188 (void) fprintf(stderr, "Found vdev type: %s\n",
3189 vd->vdev_ops->vdev_op_type);
3190 }
3191
3192 psize = size;
3193 lsize = size;
3194
3195 pbuf = umem_alloc_aligned(SPA_MAXBLOCKSIZE, 512, UMEM_NOFAIL);
3196 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3197
3198 BP_ZERO(bp);
3199
3200 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3201 DVA_SET_OFFSET(&dva[0], offset);
3202 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3203 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3204
3205 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3206
3207 BP_SET_LSIZE(bp, lsize);
3208 BP_SET_PSIZE(bp, psize);
3209 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3210 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3211 BP_SET_TYPE(bp, DMU_OT_NONE);
3212 BP_SET_LEVEL(bp, 0);
3213 BP_SET_DEDUP(bp, 0);
3214 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3215
3216 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3217 zio = zio_root(spa, NULL, NULL, 0);
3218
3219 if (vd == vd->vdev_top) {
3220 /*
3221 * Treat this as a normal block read.
3222 */
3223 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3224 ZIO_PRIORITY_SYNC_READ,
3225 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3226 } else {
3227 /*
3228 * Treat this as a vdev child I/O.
3229 */
3230 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3231 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3232 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3233 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3234 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3235 }
3236
3237 error = zio_wait(zio);
3238 spa_config_exit(spa, SCL_STATE, FTAG);
3239
3240 if (error) {
3241 (void) printf("Read of %s failed, error: %d\n", thing, error);
3242 goto out;
3243 }
3244
3245 if (flags & ZDB_FLAG_DECOMPRESS) {
3246 /*
3247 * We don't know how the data was compressed, so just try
3248 * every decompress function at every inflated blocksize.
3249 */
3250 enum zio_compress c;
3251 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3252 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3253
3254 bcopy(pbuf, pbuf2, psize);
3255
3256 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3257 SPA_MAXBLOCKSIZE - psize) == 0);
3258
3259 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3260 SPA_MAXBLOCKSIZE - psize) == 0);
3261
3262 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3263 lsize -= SPA_MINBLOCKSIZE) {
3264 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3265 if (zio_decompress_data(c, pbuf, lbuf,
3266 psize, lsize) == 0 &&
3267 zio_decompress_data(c, pbuf2, lbuf2,
3268 psize, lsize) == 0 &&
3269 bcmp(lbuf, lbuf2, lsize) == 0)
3270 break;
3271 }
3272 if (c != ZIO_COMPRESS_FUNCTIONS)
3273 break;
3274 lsize -= SPA_MINBLOCKSIZE;
3275 }
3276
3277 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3278 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3279
3280 if (lsize <= psize) {
3281 (void) printf("Decompress of %s failed\n", thing);
3282 goto out;
3283 }
3284 buf = lbuf;
3285 size = lsize;
3286 } else {
3287 buf = pbuf;
3288 size = psize;
3289 }
3290
3291 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3292 zdb_print_blkptr((blkptr_t *)(void *)
3293 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3294 else if (flags & ZDB_FLAG_RAW)
3295 zdb_dump_block_raw(buf, size, flags);
3296 else if (flags & ZDB_FLAG_INDIRECT)
3297 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3298 flags);
3299 else if (flags & ZDB_FLAG_GBH)
3300 zdb_dump_gbh(buf, flags);
3301 else
3302 zdb_dump_block(thing, buf, size, flags);
3303
3304 out:
3305 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3306 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3307 free(dup);
3308 }
3309
3310 static boolean_t
3311 pool_match(nvlist_t *cfg, char *tgt)
3312 {
3313 uint64_t v, guid = strtoull(tgt, NULL, 0);
3314 char *s;
3315
3316 if (guid != 0) {
3317 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3318 return (v == guid);
3319 } else {
3320 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3321 return (strcmp(s, tgt) == 0);
3322 }
3323 return (B_FALSE);
3324 }
3325
3326 static char *
3327 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3328 {
3329 nvlist_t *pools;
3330 nvlist_t *match = NULL;
3331 char *name = NULL;
3332 char *sepp = NULL;
3333 char sep = 0;
3334 int count = 0;
3335 importargs_t args = { 0 };
3336
3337 args.paths = dirc;
3338 args.path = dirv;
3339 args.can_be_active = B_TRUE;
3340
3341 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3342 sep = *sepp;
3343 *sepp = '\0';
3344 }
3345
3346 pools = zpool_search_import(g_zfs, &args);
3347
3348 if (pools != NULL) {
3349 nvpair_t *elem = NULL;
3350 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3351 verify(nvpair_value_nvlist(elem, configp) == 0);
3352 if (pool_match(*configp, *target)) {
3353 count++;
3354 if (match != NULL) {
3355 /* print previously found config */
3356 if (name != NULL) {
3357 (void) printf("%s\n", name);
3358 dump_nvlist(match, 8);
3359 name = NULL;
3360 }
3361 (void) printf("%s\n",
3362 nvpair_name(elem));
3363 dump_nvlist(*configp, 8);
3364 } else {
3365 match = *configp;
3366 name = nvpair_name(elem);
3367 }
3368 }
3369 }
3370 }
3371 if (count > 1)
3372 (void) fatal("\tMatched %d pools - use pool GUID "
3373 "instead of pool name or \n"
3374 "\tpool name part of a dataset name to select pool", count);
3375
3376 if (sepp)
3377 *sepp = sep;
3378 /*
3379 * If pool GUID was specified for pool id, replace it with pool name
3380 */
3381 if (name && (strstr(*target, name) != *target)) {
3382 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3383
3384 *target = umem_alloc(sz, UMEM_NOFAIL);
3385 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3386 }
3387
3388 *configp = name ? match : NULL;
3389
3390 return (name);
3391 }
3392
3393 int
3394 main(int argc, char **argv)
3395 {
3396 int i, c;
3397 struct rlimit rl = { 1024, 1024 };
3398 spa_t *spa = NULL;
3399 objset_t *os = NULL;
3400 int dump_all = 1;
3401 int verbose = 0;
3402 int error = 0;
3403 char **searchdirs = NULL;
3404 int nsearch = 0;
3405 char *target;
3406 nvlist_t *policy = NULL;
3407 uint64_t max_txg = UINT64_MAX;
3408 int flags = ZFS_IMPORT_MISSING_LOG;
3409 int rewind = ZPOOL_NEVER_REWIND;
3410 char *spa_config_path_env;
3411 const char *opts = "bcdhilmMI:suCDRSAFLXevp:t:U:P";
3412
3413 (void) setrlimit(RLIMIT_NOFILE, &rl);
3414 (void) enable_extended_FILE_stdio(-1, -1);
3415
3416 dprintf_setup(&argc, argv);
3417
3418 /*
3419 * If there is an environment variable SPA_CONFIG_PATH it overrides
3420 * default spa_config_path setting. If -U flag is specified it will
3421 * override this environment variable settings once again.
3422 */
3423 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3424 if (spa_config_path_env != NULL)
3425 spa_config_path = spa_config_path_env;
3426
3427 while ((c = getopt(argc, argv, opts)) != -1) {
3428 switch (c) {
3429 case 'b':
3430 case 'c':
3431 case 'd':
3432 case 'h':
3433 case 'i':
3434 case 'l':
3435 case 'm':
3436 case 's':
3437 case 'u':
3438 case 'C':
3439 case 'D':
3440 case 'M':
3441 case 'R':
3442 case 'S':
3443 dump_opt[c]++;
3444 dump_all = 0;
3445 break;
3446 case 'A':
3447 case 'F':
3448 case 'L':
3449 case 'X':
3450 case 'e':
3451 case 'P':
3452 dump_opt[c]++;
3453 break;
3454 case 'V':
3455 flags = ZFS_IMPORT_VERBATIM;
3456 break;
3457 case 'I':
3458 max_inflight = strtoull(optarg, NULL, 0);
3459 if (max_inflight == 0) {
3460 (void) fprintf(stderr, "maximum number "
3461 "of inflight I/Os must be greater "
3462 "than 0\n");
3463 usage();
3464 }
3465 break;
3466 case 'p':
3467 if (searchdirs == NULL) {
3468 searchdirs = umem_alloc(sizeof (char *),
3469 UMEM_NOFAIL);
3470 } else {
3471 char **tmp = umem_alloc((nsearch + 1) *
3472 sizeof (char *), UMEM_NOFAIL);
3473 bcopy(searchdirs, tmp, nsearch *
3474 sizeof (char *));
3475 umem_free(searchdirs,
3476 nsearch * sizeof (char *));
3477 searchdirs = tmp;
3478 }
3479 searchdirs[nsearch++] = optarg;
3480 break;
3481 case 't':
3482 max_txg = strtoull(optarg, NULL, 0);
3483 if (max_txg < TXG_INITIAL) {
3484 (void) fprintf(stderr, "incorrect txg "
3485 "specified: %s\n", optarg);
3486 usage();
3487 }
3488 break;
3489 case 'U':
3490 spa_config_path = optarg;
3491 break;
3492 case 'v':
3493 verbose++;
3494 break;
3495 default:
3496 usage();
3497 break;
3498 }
3499 }
3500
3501 if (!dump_opt['e'] && searchdirs != NULL) {
3502 (void) fprintf(stderr, "-p option requires use of -e\n");
3503 usage();
3504 }
3505
3506 kernel_init(FREAD);
3507 if ((g_zfs = libzfs_init()) == NULL)
3508 return (1);
3509
3510 if (dump_all)
3511 verbose = MAX(verbose, 1);
3512
3513 for (c = 0; c < 256; c++) {
3514 if (dump_all && !strchr("elAFLRSXP", c))
3515 dump_opt[c] = 1;
3516 if (dump_opt[c])
3517 dump_opt[c] += verbose;
3518 }
3519
3520 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3521 zfs_recover = (dump_opt['A'] > 1);
3522
3523 argc -= optind;
3524 argv += optind;
3525
3526 if (argc < 2 && dump_opt['R'])
3527 usage();
3528 if (argc < 1) {
3529 if (!dump_opt['e'] && dump_opt['C']) {
3530 dump_cachefile(spa_config_path);
3531 return (0);
3532 }
3533 usage();
3534 }
3535
3536 if (dump_opt['l']) {
3537 dump_label(argv[0]);
3538 return (0);
3539 }
3540
3541 if (dump_opt['X'] || dump_opt['F'])
3542 rewind = ZPOOL_DO_REWIND |
3543 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3544
3545 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3546 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3547 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3548 fatal("internal error: %s", strerror(ENOMEM));
3549
3550 error = 0;
3551 target = argv[0];
3552
3553 if (dump_opt['e']) {
3554 nvlist_t *cfg = NULL;
3555 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3556
3557 error = ENOENT;
3558 if (name) {
3559 if (dump_opt['C'] > 1) {
3560 (void) printf("\nConfiguration for import:\n");
3561 dump_nvlist(cfg, 8);
3562 }
3563 if (nvlist_add_nvlist(cfg,
3564 ZPOOL_REWIND_POLICY, policy) != 0) {
3565 fatal("can't open '%s': %s",
3566 target, strerror(ENOMEM));
3567 }
3568 error = spa_import(name, cfg, NULL, flags);
3569 }
3570 }
3571
3572 if (error == 0) {
3573 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3574 error = spa_open_rewind(target, &spa, FTAG, policy,
3575 NULL);
3576 if (error) {
3577 /*
3578 * If we're missing the log device then
3579 * try opening the pool after clearing the
3580 * log state.
3581 */
3582 mutex_enter(&spa_namespace_lock);
3583 if ((spa = spa_lookup(target)) != NULL &&
3584 spa->spa_log_state == SPA_LOG_MISSING) {
3585 spa->spa_log_state = SPA_LOG_CLEAR;
3586 error = 0;
3587 }
3588 mutex_exit(&spa_namespace_lock);
3589
3590 if (!error) {
3591 error = spa_open_rewind(target, &spa,
3592 FTAG, policy, NULL);
3593 }
3594 }
3595 } else {
3596 error = dmu_objset_own(target, DMU_OST_ANY,
3597 B_TRUE, FTAG, &os);
3598 }
3599 }
3600 nvlist_free(policy);
3601
3602 if (error)
3603 fatal("can't open '%s': %s", target, strerror(error));
3604
3605 argv++;
3606 argc--;
3607 if (!dump_opt['R']) {
3608 if (argc > 0) {
3609 zopt_objects = argc;
3610 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3611 for (i = 0; i < zopt_objects; i++) {
3612 errno = 0;
3613 zopt_object[i] = strtoull(argv[i], NULL, 0);
3614 if (zopt_object[i] == 0 && errno != 0)
3615 fatal("bad number %s: %s",
3616 argv[i], strerror(errno));
3617 }
3618 }
3619 if (os != NULL) {
3620 dump_dir(os);
3621 } else if (zopt_objects > 0 && !dump_opt['m']) {
3622 dump_dir(spa->spa_meta_objset);
3623 } else {
3624 dump_zpool(spa);
3625 }
3626 } else {
3627 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3628 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3629 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3630 flagbits['e'] = ZDB_FLAG_BSWAP;
3631 flagbits['g'] = ZDB_FLAG_GBH;
3632 flagbits['i'] = ZDB_FLAG_INDIRECT;
3633 flagbits['p'] = ZDB_FLAG_PHYS;
3634 flagbits['r'] = ZDB_FLAG_RAW;
3635
3636 for (i = 0; i < argc; i++)
3637 zdb_read_block(argv[i], spa);
3638 }
3639
3640 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3641
3642 fuid_table_destroy();
3643 sa_loaded = B_FALSE;
3644
3645 libzfs_fini(g_zfs);
3646 kernel_fini();
3647
3648 return (0);
3649 }
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