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