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 sprintf_blkptr(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 sprintf_blkptr_compact(char *blkbuf, 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 sprintf_blkptr(blkbuf, bp);
1032 return;
1033 }
1034
1035 blkbuf[0] = '\0';
1036
1037 for (int i = 0; i < ndvas; i++)
1038 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ",
1039 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1040 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1041 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1042
1043 (void) sprintf(blkbuf + strlen(blkbuf),
1044 "%llxL/%llxP F=%llu B=%llu/%llu",
1045 (u_longlong_t)BP_GET_LSIZE(bp),
1046 (u_longlong_t)BP_GET_PSIZE(bp),
1047 (u_longlong_t)bp->blk_fill,
1048 (u_longlong_t)bp->blk_birth,
1049 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1050 }
1051
1052 static void
1053 print_indirect(blkptr_t *bp, const zbookmark_t *zb,
1054 const dnode_phys_t *dnp)
1055 {
1056 char blkbuf[BP_SPRINTF_LEN];
1057 int l;
1058
1059 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1060 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1061
1062 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1063
1064 ASSERT(zb->zb_level >= 0);
1065
1066 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1067 if (l == zb->zb_level) {
1068 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1069 } else {
1070 (void) printf(" ");
1071 }
1072 }
1073
1074 sprintf_blkptr_compact(blkbuf, bp);
1075 (void) printf("%s\n", blkbuf);
1076 }
1077
1078 static int
1079 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1080 blkptr_t *bp, const zbookmark_t *zb)
1081 {
1082 int err = 0;
1083
1084 if (bp->blk_birth == 0)
1085 return (0);
1086
1087 print_indirect(bp, zb, dnp);
1088
1089 if (BP_GET_LEVEL(bp) > 0) {
1090 uint32_t flags = ARC_WAIT;
1091 int i;
1092 blkptr_t *cbp;
1093 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1094 arc_buf_t *buf;
1095 uint64_t fill = 0;
1096
1097 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1098 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1099 if (err)
1100 return (err);
1101 ASSERT(buf->b_data);
1102
1103 /* recursively visit blocks below this */
1104 cbp = buf->b_data;
1105 for (i = 0; i < epb; i++, cbp++) {
1106 zbookmark_t czb;
1107
1108 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1109 zb->zb_level - 1,
1110 zb->zb_blkid * epb + i);
1111 err = visit_indirect(spa, dnp, cbp, &czb);
1112 if (err)
1113 break;
1114 fill += cbp->blk_fill;
1115 }
1116 if (!err)
1117 ASSERT3U(fill, ==, bp->blk_fill);
1118 (void) arc_buf_remove_ref(buf, &buf);
1119 }
1120
1121 return (err);
1122 }
1123
1124 /*ARGSUSED*/
1125 static void
1126 dump_indirect(dnode_t *dn)
1127 {
1128 dnode_phys_t *dnp = dn->dn_phys;
1129 int j;
1130 zbookmark_t czb;
1131
1132 (void) printf("Indirect blocks:\n");
1133
1134 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1135 dn->dn_object, dnp->dn_nlevels - 1, 0);
1136 for (j = 0; j < dnp->dn_nblkptr; j++) {
1137 czb.zb_blkid = j;
1138 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1139 &dnp->dn_blkptr[j], &czb);
1140 }
1141
1142 (void) printf("\n");
1143 }
1144
1145 /*ARGSUSED*/
1146 static void
1147 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1148 {
1149 dsl_dir_phys_t *dd = data;
1150 time_t crtime;
1151 char nice[32];
1152
1153 if (dd == NULL)
1154 return;
1155
1156 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1157
1158 crtime = dd->dd_creation_time;
1159 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1160 (void) printf("\t\thead_dataset_obj = %llu\n",
1161 (u_longlong_t)dd->dd_head_dataset_obj);
1162 (void) printf("\t\tparent_dir_obj = %llu\n",
1163 (u_longlong_t)dd->dd_parent_obj);
1164 (void) printf("\t\torigin_obj = %llu\n",
1165 (u_longlong_t)dd->dd_origin_obj);
1166 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1167 (u_longlong_t)dd->dd_child_dir_zapobj);
1168 zdb_nicenum(dd->dd_used_bytes, nice);
1169 (void) printf("\t\tused_bytes = %s\n", nice);
1170 zdb_nicenum(dd->dd_compressed_bytes, nice);
1171 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1172 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1173 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1174 zdb_nicenum(dd->dd_quota, nice);
1175 (void) printf("\t\tquota = %s\n", nice);
1176 zdb_nicenum(dd->dd_reserved, nice);
1177 (void) printf("\t\treserved = %s\n", nice);
1178 (void) printf("\t\tprops_zapobj = %llu\n",
1179 (u_longlong_t)dd->dd_props_zapobj);
1180 (void) printf("\t\tdeleg_zapobj = %llu\n",
1181 (u_longlong_t)dd->dd_deleg_zapobj);
1182 (void) printf("\t\tflags = %llx\n",
1183 (u_longlong_t)dd->dd_flags);
1184
1185 #define DO(which) \
1186 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1187 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1188 DO(HEAD);
1189 DO(SNAP);
1190 DO(CHILD);
1191 DO(CHILD_RSRV);
1192 DO(REFRSRV);
1193 #undef DO
1194 }
1195
1196 /*ARGSUSED*/
1197 static void
1198 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1199 {
1200 dsl_dataset_phys_t *ds = data;
1201 time_t crtime;
1202 char used[32], compressed[32], uncompressed[32], unique[32];
1203 char blkbuf[BP_SPRINTF_LEN];
1204
1205 if (ds == NULL)
1206 return;
1207
1208 ASSERT(size == sizeof (*ds));
1209 crtime = ds->ds_creation_time;
1210 zdb_nicenum(ds->ds_referenced_bytes, used);
1211 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1212 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1213 zdb_nicenum(ds->ds_unique_bytes, unique);
1214 sprintf_blkptr(blkbuf, &ds->ds_bp);
1215
1216 (void) printf("\t\tdir_obj = %llu\n",
1217 (u_longlong_t)ds->ds_dir_obj);
1218 (void) printf("\t\tprev_snap_obj = %llu\n",
1219 (u_longlong_t)ds->ds_prev_snap_obj);
1220 (void) printf("\t\tprev_snap_txg = %llu\n",
1221 (u_longlong_t)ds->ds_prev_snap_txg);
1222 (void) printf("\t\tnext_snap_obj = %llu\n",
1223 (u_longlong_t)ds->ds_next_snap_obj);
1224 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1225 (u_longlong_t)ds->ds_snapnames_zapobj);
1226 (void) printf("\t\tnum_children = %llu\n",
1227 (u_longlong_t)ds->ds_num_children);
1228 (void) printf("\t\tuserrefs_obj = %llu\n",
1229 (u_longlong_t)ds->ds_userrefs_obj);
1230 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1231 (void) printf("\t\tcreation_txg = %llu\n",
1232 (u_longlong_t)ds->ds_creation_txg);
1233 (void) printf("\t\tdeadlist_obj = %llu\n",
1234 (u_longlong_t)ds->ds_deadlist_obj);
1235 (void) printf("\t\tused_bytes = %s\n", used);
1236 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1237 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1238 (void) printf("\t\tunique = %s\n", unique);
1239 (void) printf("\t\tfsid_guid = %llu\n",
1240 (u_longlong_t)ds->ds_fsid_guid);
1241 (void) printf("\t\tguid = %llu\n",
1242 (u_longlong_t)ds->ds_guid);
1243 (void) printf("\t\tflags = %llx\n",
1244 (u_longlong_t)ds->ds_flags);
1245 (void) printf("\t\tnext_clones_obj = %llu\n",
1246 (u_longlong_t)ds->ds_next_clones_obj);
1247 (void) printf("\t\tprops_obj = %llu\n",
1248 (u_longlong_t)ds->ds_props_obj);
1249 (void) printf("\t\tbp = %s\n", blkbuf);
1250 }
1251
1252 /* ARGSUSED */
1253 static int
1254 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1255 {
1256 char blkbuf[BP_SPRINTF_LEN];
1257
1258 if (bp->blk_birth != 0) {
1259 sprintf_blkptr(blkbuf, bp);
1260 (void) printf("\t%s\n", blkbuf);
1261 }
1262 return (0);
1263 }
1264
1265 static void
1266 dump_bptree(objset_t *os, uint64_t obj, char *name)
1267 {
1268 char bytes[32];
1269 bptree_phys_t *bt;
1270 dmu_buf_t *db;
1271
1272 if (dump_opt['d'] < 3)
1273 return;
1274
1275 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1276 bt = db->db_data;
1277 zdb_nicenum(bt->bt_bytes, bytes);
1278 (void) printf("\n %s: %llu datasets, %s\n",
1279 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1280 dmu_buf_rele(db, FTAG);
1281
1282 if (dump_opt['d'] < 5)
1283 return;
1284
1285 (void) printf("\n");
1286
1287 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1288 }
1289
1290 /* ARGSUSED */
1291 static int
1292 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1293 {
1294 char blkbuf[BP_SPRINTF_LEN];
1295
1296 ASSERT(bp->blk_birth != 0);
1297 sprintf_blkptr_compact(blkbuf, bp);
1298 (void) printf("\t%s\n", blkbuf);
1299 return (0);
1300 }
1301
1302 static void
1303 dump_bpobj(bpobj_t *bpo, char *name, int indent)
1304 {
1305 char bytes[32];
1306 char comp[32];
1307 char uncomp[32];
1308
1309 if (dump_opt['d'] < 3)
1310 return;
1311
1312 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1313 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1314 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1315 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1316 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1317 "%llu subobjs, %s (%s/%s comp)\n",
1318 indent * 8, name,
1319 (u_longlong_t)bpo->bpo_object,
1320 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1321 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1322 bytes, comp, uncomp);
1323
1324 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1325 uint64_t subobj;
1326 bpobj_t subbpo;
1327 int error;
1328 VERIFY0(dmu_read(bpo->bpo_os,
1329 bpo->bpo_phys->bpo_subobjs,
1330 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1331 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1332 if (error != 0) {
1333 (void) printf("ERROR %u while trying to open "
1334 "subobj id %llu\n",
1335 error, (u_longlong_t)subobj);
1336 continue;
1337 }
1338 dump_bpobj(&subbpo, "subobj", indent + 1);
1339 bpobj_close(&subbpo);
1340 }
1341 } else {
1342 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1343 indent * 8, name,
1344 (u_longlong_t)bpo->bpo_object,
1345 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1346 bytes);
1347 }
1348
1349 if (dump_opt['d'] < 5)
1350 return;
1351
1352
1353 if (indent == 0) {
1354 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1355 (void) printf("\n");
1356 }
1357 }
1358
1359 static void
1360 dump_deadlist(dsl_deadlist_t *dl)
1361 {
1362 dsl_deadlist_entry_t *dle;
1363 uint64_t unused;
1364 char bytes[32];
1365 char comp[32];
1366 char uncomp[32];
1367
1368 if (dump_opt['d'] < 3)
1369 return;
1370
1371 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1372 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1373 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1374 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1375 bytes, comp, uncomp);
1376
1377 if (dump_opt['d'] < 4)
1378 return;
1379
1380 (void) printf("\n");
1381
1382 /* force the tree to be loaded */
1383 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1384
1385 for (dle = avl_first(&dl->dl_tree); dle;
1386 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1387 if (dump_opt['d'] >= 5) {
1388 char buf[128];
1389 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ",
1390 (longlong_t)dle->dle_mintxg,
1391 (longlong_t)dle->dle_bpobj.bpo_object);
1392
1393 dump_bpobj(&dle->dle_bpobj, buf, 0);
1394 } else {
1395 (void) printf("mintxg %llu -> obj %llu\n",
1396 (longlong_t)dle->dle_mintxg,
1397 (longlong_t)dle->dle_bpobj.bpo_object);
1398
1399 }
1400 }
1401 }
1402
1403 static avl_tree_t idx_tree;
1404 static avl_tree_t domain_tree;
1405 static boolean_t fuid_table_loaded;
1406 static boolean_t sa_loaded;
1407 sa_attr_type_t *sa_attr_table;
1408
1409 static void
1410 fuid_table_destroy()
1411 {
1412 if (fuid_table_loaded) {
1413 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1414 fuid_table_loaded = B_FALSE;
1415 }
1416 }
1417
1418 /*
1419 * print uid or gid information.
1420 * For normal POSIX id just the id is printed in decimal format.
1421 * For CIFS files with FUID the fuid is printed in hex followed by
1422 * the domain-rid string.
1423 */
1424 static void
1425 print_idstr(uint64_t id, const char *id_type)
1426 {
1427 if (FUID_INDEX(id)) {
1428 char *domain;
1429
1430 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1431 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1432 (u_longlong_t)id, domain, (int)FUID_RID(id));
1433 } else {
1434 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1435 }
1436
1437 }
1438
1439 static void
1440 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1441 {
1442 uint32_t uid_idx, gid_idx;
1443
1444 uid_idx = FUID_INDEX(uid);
1445 gid_idx = FUID_INDEX(gid);
1446
1447 /* Load domain table, if not already loaded */
1448 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1449 uint64_t fuid_obj;
1450
1451 /* first find the fuid object. It lives in the master node */
1452 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1453 8, 1, &fuid_obj) == 0);
1454 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1455 (void) zfs_fuid_table_load(os, fuid_obj,
1456 &idx_tree, &domain_tree);
1457 fuid_table_loaded = B_TRUE;
1458 }
1459
1460 print_idstr(uid, "uid");
1461 print_idstr(gid, "gid");
1462 }
1463
1464 /*ARGSUSED*/
1465 static void
1466 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1467 {
1468 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1469 sa_handle_t *hdl;
1470 uint64_t xattr, rdev, gen;
1471 uint64_t uid, gid, mode, fsize, parent, links;
1472 uint64_t pflags;
1473 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1474 time_t z_crtime, z_atime, z_mtime, z_ctime;
1475 sa_bulk_attr_t bulk[12];
1476 int idx = 0;
1477 int error;
1478
1479 if (!sa_loaded) {
1480 uint64_t sa_attrs = 0;
1481 uint64_t version;
1482
1483 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1484 8, 1, &version) == 0);
1485 if (version >= ZPL_VERSION_SA) {
1486 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1487 8, 1, &sa_attrs) == 0);
1488 }
1489 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1490 ZPL_END, &sa_attr_table)) != 0) {
1491 (void) printf("sa_setup failed errno %d, can't "
1492 "display znode contents\n", error);
1493 return;
1494 }
1495 sa_loaded = B_TRUE;
1496 }
1497
1498 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1499 (void) printf("Failed to get handle for SA znode\n");
1500 return;
1501 }
1502
1503 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1504 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1505 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1506 &links, 8);
1507 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1508 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1509 &mode, 8);
1510 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1511 NULL, &parent, 8);
1512 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1513 &fsize, 8);
1514 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1515 acctm, 16);
1516 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1517 modtm, 16);
1518 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1519 crtm, 16);
1520 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1521 chgtm, 16);
1522 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1523 &pflags, 8);
1524
1525 if (sa_bulk_lookup(hdl, bulk, idx)) {
1526 (void) sa_handle_destroy(hdl);
1527 return;
1528 }
1529
1530 error = zfs_obj_to_path(os, object, path, sizeof (path));
1531 if (error != 0) {
1532 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1533 (u_longlong_t)object);
1534 }
1535 if (dump_opt['d'] < 3) {
1536 (void) printf("\t%s\n", path);
1537 (void) sa_handle_destroy(hdl);
1538 return;
1539 }
1540
1541 z_crtime = (time_t)crtm[0];
1542 z_atime = (time_t)acctm[0];
1543 z_mtime = (time_t)modtm[0];
1544 z_ctime = (time_t)chgtm[0];
1545
1546 (void) printf("\tpath %s\n", path);
1547 dump_uidgid(os, uid, gid);
1548 (void) printf("\tatime %s", ctime(&z_atime));
1549 (void) printf("\tmtime %s", ctime(&z_mtime));
1550 (void) printf("\tctime %s", ctime(&z_ctime));
1551 (void) printf("\tcrtime %s", ctime(&z_crtime));
1552 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1553 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1554 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1555 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1556 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1557 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1558 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1559 sizeof (uint64_t)) == 0)
1560 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1561 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1562 sizeof (uint64_t)) == 0)
1563 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1564 sa_handle_destroy(hdl);
1565 }
1566
1567 /*ARGSUSED*/
1568 static void
1569 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1570 {
1571 }
1572
1573 /*ARGSUSED*/
1574 static void
1575 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1576 {
1577 }
1578
1579 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1580 dump_none, /* unallocated */
1581 dump_zap, /* object directory */
1582 dump_uint64, /* object array */
1583 dump_none, /* packed nvlist */
1584 dump_packed_nvlist, /* packed nvlist size */
1585 dump_none, /* bplist */
1586 dump_none, /* bplist header */
1587 dump_none, /* SPA space map header */
1588 dump_none, /* SPA space map */
1589 dump_none, /* ZIL intent log */
1590 dump_dnode, /* DMU dnode */
1591 dump_dmu_objset, /* DMU objset */
1592 dump_dsl_dir, /* DSL directory */
1593 dump_zap, /* DSL directory child map */
1594 dump_zap, /* DSL dataset snap map */
1595 dump_zap, /* DSL props */
1596 dump_dsl_dataset, /* DSL dataset */
1597 dump_znode, /* ZFS znode */
1598 dump_acl, /* ZFS V0 ACL */
1599 dump_uint8, /* ZFS plain file */
1600 dump_zpldir, /* ZFS directory */
1601 dump_zap, /* ZFS master node */
1602 dump_zap, /* ZFS delete queue */
1603 dump_uint8, /* zvol object */
1604 dump_zap, /* zvol prop */
1605 dump_uint8, /* other uint8[] */
1606 dump_uint64, /* other uint64[] */
1607 dump_zap, /* other ZAP */
1608 dump_zap, /* persistent error log */
1609 dump_uint8, /* SPA history */
1610 dump_history_offsets, /* SPA history offsets */
1611 dump_zap, /* Pool properties */
1612 dump_zap, /* DSL permissions */
1613 dump_acl, /* ZFS ACL */
1614 dump_uint8, /* ZFS SYSACL */
1615 dump_none, /* FUID nvlist */
1616 dump_packed_nvlist, /* FUID nvlist size */
1617 dump_zap, /* DSL dataset next clones */
1618 dump_zap, /* DSL scrub queue */
1619 dump_zap, /* ZFS user/group used */
1620 dump_zap, /* ZFS user/group quota */
1621 dump_zap, /* snapshot refcount tags */
1622 dump_ddt_zap, /* DDT ZAP object */
1623 dump_zap, /* DDT statistics */
1624 dump_znode, /* SA object */
1625 dump_zap, /* SA Master Node */
1626 dump_sa_attrs, /* SA attribute registration */
1627 dump_sa_layouts, /* SA attribute layouts */
1628 dump_zap, /* DSL scrub translations */
1629 dump_none, /* fake dedup BP */
1630 dump_zap, /* deadlist */
1631 dump_none, /* deadlist hdr */
1632 dump_zap, /* dsl clones */
1633 dump_none, /* bpobj subobjs */
1634 dump_unknown, /* Unknown type, must be last */
1635 };
1636
1637 static void
1638 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1639 {
1640 dmu_buf_t *db = NULL;
1641 dmu_object_info_t doi;
1642 dnode_t *dn;
1643 void *bonus = NULL;
1644 size_t bsize = 0;
1645 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1646 char bonus_size[32];
1647 char aux[50];
1648 int error;
1649
1650 if (*print_header) {
1651 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1652 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1653 "%full", "type");
1654 *print_header = 0;
1655 }
1656
1657 if (object == 0) {
1658 dn = DMU_META_DNODE(os);
1659 } else {
1660 error = dmu_bonus_hold(os, object, FTAG, &db);
1661 if (error)
1662 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1663 object, error);
1664 bonus = db->db_data;
1665 bsize = db->db_size;
1666 dn = DB_DNODE((dmu_buf_impl_t *)db);
1667 }
1668 dmu_object_info_from_dnode(dn, &doi);
1669
1670 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1671 zdb_nicenum(doi.doi_data_block_size, dblk);
1672 zdb_nicenum(doi.doi_max_offset, lsize);
1673 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1674 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1675 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1676 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1677 doi.doi_max_offset);
1678
1679 aux[0] = '\0';
1680
1681 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1682 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1683 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1684 }
1685
1686 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1687 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1688 ZDB_COMPRESS_NAME(doi.doi_compress));
1689 }
1690
1691 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1692 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1693 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1694
1695 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1696 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1697 "", "", "", "", "", bonus_size, "bonus",
1698 ZDB_OT_NAME(doi.doi_bonus_type));
1699 }
1700
1701 if (verbosity >= 4) {
1702 (void) printf("\tdnode flags: %s%s%s\n",
1703 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1704 "USED_BYTES " : "",
1705 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1706 "USERUSED_ACCOUNTED " : "",
1707 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1708 "SPILL_BLKPTR" : "");
1709 (void) printf("\tdnode maxblkid: %llu\n",
1710 (longlong_t)dn->dn_phys->dn_maxblkid);
1711
1712 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1713 bonus, bsize);
1714 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1715 *print_header = 1;
1716 }
1717
1718 if (verbosity >= 5)
1719 dump_indirect(dn);
1720
1721 if (verbosity >= 5) {
1722 /*
1723 * Report the list of segments that comprise the object.
1724 */
1725 uint64_t start = 0;
1726 uint64_t end;
1727 uint64_t blkfill = 1;
1728 int minlvl = 1;
1729
1730 if (dn->dn_type == DMU_OT_DNODE) {
1731 minlvl = 0;
1732 blkfill = DNODES_PER_BLOCK;
1733 }
1734
1735 for (;;) {
1736 char segsize[32];
1737 error = dnode_next_offset(dn,
1738 0, &start, minlvl, blkfill, 0);
1739 if (error)
1740 break;
1741 end = start;
1742 error = dnode_next_offset(dn,
1743 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1744 zdb_nicenum(end - start, segsize);
1745 (void) printf("\t\tsegment [%016llx, %016llx)"
1746 " size %5s\n", (u_longlong_t)start,
1747 (u_longlong_t)end, segsize);
1748 if (error)
1749 break;
1750 start = end;
1751 }
1752 }
1753
1754 if (db != NULL)
1755 dmu_buf_rele(db, FTAG);
1756 }
1757
1758 static char *objset_types[DMU_OST_NUMTYPES] = {
1759 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1760
1761 static void
1762 dump_dir(objset_t *os)
1763 {
1764 dmu_objset_stats_t dds;
1765 uint64_t object, object_count;
1766 uint64_t refdbytes, usedobjs, scratch;
1767 char numbuf[32];
1768 char blkbuf[BP_SPRINTF_LEN + 20];
1769 char osname[MAXNAMELEN];
1770 char *type = "UNKNOWN";
1771 int verbosity = dump_opt['d'];
1772 int print_header = 1;
1773 int i, error;
1774
1775 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1776 dmu_objset_fast_stat(os, &dds);
1777 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1778
1779 if (dds.dds_type < DMU_OST_NUMTYPES)
1780 type = objset_types[dds.dds_type];
1781
1782 if (dds.dds_type == DMU_OST_META) {
1783 dds.dds_creation_txg = TXG_INITIAL;
1784 usedobjs = os->os_rootbp->blk_fill;
1785 refdbytes = os->os_spa->spa_dsl_pool->
1786 dp_mos_dir->dd_phys->dd_used_bytes;
1787 } else {
1788 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1789 }
1790
1791 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill);
1792
1793 zdb_nicenum(refdbytes, numbuf);
1794
1795 if (verbosity >= 4) {
1796 (void) sprintf(blkbuf, ", rootbp ");
1797 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp);
1798 } else {
1799 blkbuf[0] = '\0';
1800 }
1801
1802 dmu_objset_name(os, osname);
1803
1804 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1805 "%s, %llu objects%s\n",
1806 osname, type, (u_longlong_t)dmu_objset_id(os),
1807 (u_longlong_t)dds.dds_creation_txg,
1808 numbuf, (u_longlong_t)usedobjs, blkbuf);
1809
1810 if (zopt_objects != 0) {
1811 for (i = 0; i < zopt_objects; i++)
1812 dump_object(os, zopt_object[i], verbosity,
1813 &print_header);
1814 (void) printf("\n");
1815 return;
1816 }
1817
1818 if (dump_opt['i'] != 0 || verbosity >= 2)
1819 dump_intent_log(dmu_objset_zil(os));
1820
1821 if (dmu_objset_ds(os) != NULL)
1822 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1823
1824 if (verbosity < 2)
1825 return;
1826
1827 if (os->os_rootbp->blk_birth == 0)
1828 return;
1829
1830 dump_object(os, 0, verbosity, &print_header);
1831 object_count = 0;
1832 if (DMU_USERUSED_DNODE(os) != NULL &&
1833 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1834 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1835 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1836 }
1837
1838 object = 0;
1839 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1840 dump_object(os, object, verbosity, &print_header);
1841 object_count++;
1842 }
1843
1844 ASSERT3U(object_count, ==, usedobjs);
1845
1846 (void) printf("\n");
1847
1848 if (error != ESRCH) {
1849 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1850 abort();
1851 }
1852 }
1853
1854 static void
1855 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
1856 {
1857 time_t timestamp = ub->ub_timestamp;
1858
1859 (void) printf(header ? header : "");
1860 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1861 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1862 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1863 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1864 (void) printf("\ttimestamp = %llu UTC = %s",
1865 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
1866 if (dump_opt['u'] >= 3) {
1867 char blkbuf[BP_SPRINTF_LEN];
1868 sprintf_blkptr(blkbuf, &ub->ub_rootbp);
1869 (void) printf("\trootbp = %s\n", blkbuf);
1870 }
1871 (void) printf(footer ? footer : "");
1872 }
1873
1874 static void
1875 dump_config(spa_t *spa)
1876 {
1877 dmu_buf_t *db;
1878 size_t nvsize = 0;
1879 int error = 0;
1880
1881
1882 error = dmu_bonus_hold(spa->spa_meta_objset,
1883 spa->spa_config_object, FTAG, &db);
1884
1885 if (error == 0) {
1886 nvsize = *(uint64_t *)db->db_data;
1887 dmu_buf_rele(db, FTAG);
1888
1889 (void) printf("\nMOS Configuration:\n");
1890 dump_packed_nvlist(spa->spa_meta_objset,
1891 spa->spa_config_object, (void *)&nvsize, 1);
1892 } else {
1893 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
1894 (u_longlong_t)spa->spa_config_object, error);
1895 }
1896 }
1897
1898 static void
1899 dump_cachefile(const char *cachefile)
1900 {
1901 int fd;
1902 struct stat64 statbuf;
1903 char *buf;
1904 nvlist_t *config;
1905
1906 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1907 (void) printf("cannot open '%s': %s\n", cachefile,
1908 strerror(errno));
1909 exit(1);
1910 }
1911
1912 if (fstat64(fd, &statbuf) != 0) {
1913 (void) printf("failed to stat '%s': %s\n", cachefile,
1914 strerror(errno));
1915 exit(1);
1916 }
1917
1918 if ((buf = malloc(statbuf.st_size)) == NULL) {
1919 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
1920 (u_longlong_t)statbuf.st_size);
1921 exit(1);
1922 }
1923
1924 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1925 (void) fprintf(stderr, "failed to read %llu bytes\n",
1926 (u_longlong_t)statbuf.st_size);
1927 exit(1);
1928 }
1929
1930 (void) close(fd);
1931
1932 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
1933 (void) fprintf(stderr, "failed to unpack nvlist\n");
1934 exit(1);
1935 }
1936
1937 free(buf);
1938
1939 dump_nvlist(config, 0);
1940
1941 nvlist_free(config);
1942 }
1943
1944 #define ZDB_MAX_UB_HEADER_SIZE 32
1945
1946 static void
1947 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
1948 {
1949 vdev_t vd;
1950 vdev_t *vdp = &vd;
1951 char header[ZDB_MAX_UB_HEADER_SIZE];
1952
1953 vd.vdev_ashift = ashift;
1954 vdp->vdev_top = vdp;
1955
1956 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
1957 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
1958 uberblock_t *ub = (void *)((char *)lbl + uoff);
1959
1960 if (uberblock_verify(ub))
1961 continue;
1962 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
1963 "Uberblock[%d]\n", i);
1964 dump_uberblock(ub, header, "");
1965 }
1966 }
1967
1968 static void
1969 dump_label(const char *dev)
1970 {
1971 int fd;
1972 vdev_label_t label;
1973 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
1974 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
1975 struct stat64 statbuf;
1976 uint64_t psize, ashift;
1977 int len = strlen(dev) + 1;
1978
1979 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
1980 len++;
1981 path = malloc(len);
1982 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
1983 } else {
1984 path = strdup(dev);
1985 }
1986
1987 if ((fd = open64(path, O_RDONLY)) < 0) {
1988 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
1989 free(path);
1990 exit(1);
1991 }
1992
1993 if (fstat64(fd, &statbuf) != 0) {
1994 (void) printf("failed to stat '%s': %s\n", path,
1995 strerror(errno));
1996 free(path);
1997 (void) close(fd);
1998 exit(1);
1999 }
2000
2001 if (S_ISBLK(statbuf.st_mode)) {
2002 (void) printf("cannot use '%s': character device required\n",
2003 path);
2004 free(path);
2005 (void) close(fd);
2006 exit(1);
2007 }
2008
2009 psize = statbuf.st_size;
2010 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2011
2012 for (int l = 0; l < VDEV_LABELS; l++) {
2013 nvlist_t *config = NULL;
2014
2015 (void) printf("--------------------------------------------\n");
2016 (void) printf("LABEL %d\n", l);
2017 (void) printf("--------------------------------------------\n");
2018
2019 if (pread64(fd, &label, sizeof (label),
2020 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2021 (void) printf("failed to read label %d\n", l);
2022 continue;
2023 }
2024
2025 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2026 (void) printf("failed to unpack label %d\n", l);
2027 ashift = SPA_MINBLOCKSHIFT;
2028 } else {
2029 nvlist_t *vdev_tree = NULL;
2030
2031 dump_nvlist(config, 4);
2032 if ((nvlist_lookup_nvlist(config,
2033 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2034 (nvlist_lookup_uint64(vdev_tree,
2035 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2036 ashift = SPA_MINBLOCKSHIFT;
2037 nvlist_free(config);
2038 }
2039 if (dump_opt['u'])
2040 dump_label_uberblocks(&label, ashift);
2041 }
2042
2043 free(path);
2044 (void) close(fd);
2045 }
2046
2047 /*ARGSUSED*/
2048 static int
2049 dump_one_dir(const char *dsname, void *arg)
2050 {
2051 int error;
2052 objset_t *os;
2053
2054 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
2055 if (error) {
2056 (void) printf("Could not open %s, error %d\n", dsname, error);
2057 return (0);
2058 }
2059 dump_dir(os);
2060 dmu_objset_disown(os, FTAG);
2061 fuid_table_destroy();
2062 sa_loaded = B_FALSE;
2063 return (0);
2064 }
2065
2066 /*
2067 * Block statistics.
2068 */
2069 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1)
2070 typedef struct zdb_blkstats {
2071 uint64_t zb_asize;
2072 uint64_t zb_lsize;
2073 uint64_t zb_psize;
2074 uint64_t zb_count;
2075 uint64_t zb_gangs;
2076 uint64_t zb_ditto_samevdev;
2077 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2078 } zdb_blkstats_t;
2079
2080 /*
2081 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2082 */
2083 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2084 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2085 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2086 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2087
2088 static char *zdb_ot_extname[] = {
2089 "deferred free",
2090 "dedup ditto",
2091 "other",
2092 "Total",
2093 };
2094
2095 #define ZB_TOTAL DN_MAX_LEVELS
2096
2097 typedef struct zdb_cb {
2098 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2099 uint64_t zcb_dedup_asize;
2100 uint64_t zcb_dedup_blocks;
2101 uint64_t zcb_start;
2102 uint64_t zcb_lastprint;
2103 uint64_t zcb_totalasize;
2104 uint64_t zcb_errors[256];
2105 int zcb_readfails;
2106 int zcb_haderrors;
2107 spa_t *zcb_spa;
2108 } zdb_cb_t;
2109
2110 static void
2111 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2112 dmu_object_type_t type)
2113 {
2114 uint64_t refcnt = 0;
2115
2116 ASSERT(type < ZDB_OT_TOTAL);
2117
2118 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2119 return;
2120
2121 for (int i = 0; i < 4; i++) {
2122 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2123 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2124 int equal;
2125 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2126
2127 zb->zb_asize += BP_GET_ASIZE(bp);
2128 zb->zb_lsize += BP_GET_LSIZE(bp);
2129 zb->zb_psize += BP_GET_PSIZE(bp);
2130 zb->zb_count++;
2131 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++;
2132
2133 zb->zb_gangs += BP_COUNT_GANG(bp);
2134
2135 switch (BP_GET_NDVAS(bp)) {
2136 case 2:
2137 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2138 DVA_GET_VDEV(&bp->blk_dva[1]))
2139 zb->zb_ditto_samevdev++;
2140 break;
2141 case 3:
2142 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2143 DVA_GET_VDEV(&bp->blk_dva[1])) +
2144 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2145 DVA_GET_VDEV(&bp->blk_dva[2])) +
2146 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2147 DVA_GET_VDEV(&bp->blk_dva[2]));
2148 if (equal != 0)
2149 zb->zb_ditto_samevdev++;
2150 break;
2151 }
2152
2153 }
2154
2155 if (dump_opt['L'])
2156 return;
2157
2158 if (BP_GET_DEDUP(bp)) {
2159 ddt_t *ddt;
2160 ddt_entry_t *dde;
2161
2162 ddt = ddt_select(zcb->zcb_spa, bp);
2163 ddt_enter(ddt);
2164 dde = ddt_lookup(ddt, bp, B_FALSE);
2165
2166 if (dde == NULL) {
2167 refcnt = 0;
2168 } else {
2169 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2170 ddt_phys_decref(ddp);
2171 refcnt = ddp->ddp_refcnt;
2172 if (ddt_phys_total_refcnt(dde) == 0)
2173 ddt_remove(ddt, dde);
2174 }
2175 ddt_exit(ddt);
2176 }
2177
2178 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2179 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2180 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2181 }
2182
2183 static void
2184 zdb_blkptr_done(zio_t *zio)
2185 {
2186 spa_t *spa = zio->io_spa;
2187 blkptr_t *bp = zio->io_bp;
2188 int ioerr = zio->io_error;
2189 zdb_cb_t *zcb = zio->io_private;
2190 zbookmark_t *zb = &zio->io_bookmark;
2191
2192 zio_data_buf_free(zio->io_data, zio->io_size);
2193
2194 mutex_enter(&spa->spa_scrub_lock);
2195 spa->spa_scrub_inflight--;
2196 cv_broadcast(&spa->spa_scrub_io_cv);
2197
2198 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2199 char blkbuf[BP_SPRINTF_LEN];
2200
2201 zcb->zcb_haderrors = 1;
2202 zcb->zcb_errors[ioerr]++;
2203
2204 if (dump_opt['b'] >= 2)
2205 sprintf_blkptr(blkbuf, bp);
2206 else
2207 blkbuf[0] = '\0';
2208
2209 (void) printf("zdb_blkptr_cb: "
2210 "Got error %d reading "
2211 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2212 ioerr,
2213 (u_longlong_t)zb->zb_objset,
2214 (u_longlong_t)zb->zb_object,
2215 (u_longlong_t)zb->zb_level,
2216 (u_longlong_t)zb->zb_blkid,
2217 blkbuf);
2218 }
2219 mutex_exit(&spa->spa_scrub_lock);
2220 }
2221
2222 static int
2223 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2224 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2225 {
2226 zdb_cb_t *zcb = arg;
2227 char blkbuf[BP_SPRINTF_LEN];
2228 dmu_object_type_t type;
2229 boolean_t is_metadata;
2230
2231 if (bp == NULL)
2232 return (0);
2233
2234 type = BP_GET_TYPE(bp);
2235
2236 zdb_count_block(zcb, zilog, bp,
2237 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2238
2239 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2240
2241 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) {
2242 size_t size = BP_GET_PSIZE(bp);
2243 void *data = zio_data_buf_alloc(size);
2244 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2245
2246 /* If it's an intent log block, failure is expected. */
2247 if (zb->zb_level == ZB_ZIL_LEVEL)
2248 flags |= ZIO_FLAG_SPECULATIVE;
2249
2250 mutex_enter(&spa->spa_scrub_lock);
2251 while (spa->spa_scrub_inflight > max_inflight)
2252 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2253 spa->spa_scrub_inflight++;
2254 mutex_exit(&spa->spa_scrub_lock);
2255
2256 zio_nowait(zio_read(NULL, spa, bp, data, size,
2257 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2258 }
2259
2260 zcb->zcb_readfails = 0;
2261
2262 if (dump_opt['b'] >= 5) {
2263 sprintf_blkptr(blkbuf, bp);
2264 (void) printf("objset %llu object %llu "
2265 "level %lld offset 0x%llx %s\n",
2266 (u_longlong_t)zb->zb_objset,
2267 (u_longlong_t)zb->zb_object,
2268 (longlong_t)zb->zb_level,
2269 (u_longlong_t)blkid2offset(dnp, bp, zb),
2270 blkbuf);
2271 }
2272
2273 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) &&
2274 gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2275 uint64_t now = gethrtime();
2276 char buf[10];
2277 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2278 int kb_per_sec =
2279 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2280 int sec_remaining =
2281 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2282
2283 zfs_nicenum(bytes, buf, sizeof (buf));
2284 (void) fprintf(stderr,
2285 "\r%5s completed (%4dMB/s) "
2286 "estimated time remaining: %uhr %02umin %02usec ",
2287 buf, kb_per_sec / 1024,
2288 sec_remaining / 60 / 60,
2289 sec_remaining / 60 % 60,
2290 sec_remaining % 60);
2291
2292 zcb->zcb_lastprint = now;
2293 }
2294
2295 return (0);
2296 }
2297
2298 static void
2299 zdb_leak(void *arg, uint64_t start, uint64_t size)
2300 {
2301 vdev_t *vd = arg;
2302
2303 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2304 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2305 }
2306
2307 static metaslab_ops_t zdb_metaslab_ops = {
2308 NULL, /* alloc */
2309 NULL /* fragmented */
2310 };
2311
2312 static void
2313 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2314 {
2315 ddt_bookmark_t ddb = { 0 };
2316 ddt_entry_t dde;
2317 int error;
2318
2319 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2320 blkptr_t blk;
2321 ddt_phys_t *ddp = dde.dde_phys;
2322
2323 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2324 return;
2325
2326 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2327
2328 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2329 if (ddp->ddp_phys_birth == 0)
2330 continue;
2331 ddt_bp_create(ddb.ddb_checksum,
2332 &dde.dde_key, ddp, &blk);
2333 if (p == DDT_PHYS_DITTO) {
2334 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2335 } else {
2336 zcb->zcb_dedup_asize +=
2337 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2338 zcb->zcb_dedup_blocks++;
2339 }
2340 }
2341 if (!dump_opt['L']) {
2342 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2343 ddt_enter(ddt);
2344 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2345 ddt_exit(ddt);
2346 }
2347 }
2348
2349 ASSERT(error == ENOENT);
2350 }
2351
2352 static void
2353 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2354 {
2355 zcb->zcb_spa = spa;
2356
2357 if (!dump_opt['L']) {
2358 vdev_t *rvd = spa->spa_root_vdev;
2359 for (int c = 0; c < rvd->vdev_children; c++) {
2360 vdev_t *vd = rvd->vdev_child[c];
2361 for (int m = 0; m < vd->vdev_ms_count; m++) {
2362 metaslab_t *msp = vd->vdev_ms[m];
2363 mutex_enter(&msp->ms_lock);
2364 metaslab_unload(msp);
2365
2366 /*
2367 * For leak detection, we overload the metaslab
2368 * ms_tree to contain allocated segments
2369 * instead of free segments. As a result,
2370 * we can't use the normal metaslab_load/unload
2371 * interfaces.
2372 */
2373 if (msp->ms_sm != NULL) {
2374 msp->ms_ops = &zdb_metaslab_ops;
2375 VERIFY0(space_map_load(msp->ms_sm,
2376 msp->ms_tree, SM_ALLOC));
2377 msp->ms_loaded = B_TRUE;
2378 }
2379 mutex_exit(&msp->ms_lock);
2380 }
2381 }
2382 }
2383
2384 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2385
2386 zdb_ddt_leak_init(spa, zcb);
2387
2388 spa_config_exit(spa, SCL_CONFIG, FTAG);
2389 }
2390
2391 static void
2392 zdb_leak_fini(spa_t *spa)
2393 {
2394 if (!dump_opt['L']) {
2395 vdev_t *rvd = spa->spa_root_vdev;
2396 for (int c = 0; c < rvd->vdev_children; c++) {
2397 vdev_t *vd = rvd->vdev_child[c];
2398 for (int m = 0; m < vd->vdev_ms_count; m++) {
2399 metaslab_t *msp = vd->vdev_ms[m];
2400 mutex_enter(&msp->ms_lock);
2401
2402 /*
2403 * The ms_tree has been overloaded to
2404 * contain allocated segments. Now that we
2405 * finished traversing all blocks, any
2406 * block that remains in the ms_tree
2407 * represents an allocated block that we
2408 * did not claim during the traversal.
2409 * Claimed blocks would have been removed
2410 * from the ms_tree.
2411 */
2412 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2413 msp->ms_loaded = B_FALSE;
2414
2415 mutex_exit(&msp->ms_lock);
2416 }
2417 }
2418 }
2419 }
2420
2421 /* ARGSUSED */
2422 static int
2423 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2424 {
2425 zdb_cb_t *zcb = arg;
2426
2427 if (dump_opt['b'] >= 5) {
2428 char blkbuf[BP_SPRINTF_LEN];
2429 sprintf_blkptr(blkbuf, bp);
2430 (void) printf("[%s] %s\n",
2431 "deferred free", blkbuf);
2432 }
2433 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2434 return (0);
2435 }
2436
2437 static int
2438 dump_block_stats(spa_t *spa)
2439 {
2440 zdb_cb_t zcb = { 0 };
2441 zdb_blkstats_t *zb, *tzb;
2442 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2443 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2444 int leaks = 0;
2445
2446 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2447 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2448 (dump_opt['c'] == 1) ? "metadata " : "",
2449 dump_opt['c'] ? "checksums " : "",
2450 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2451 !dump_opt['L'] ? "nothing leaked " : "");
2452
2453 /*
2454 * Load all space maps as SM_ALLOC maps, then traverse the pool
2455 * claiming each block we discover. If the pool is perfectly
2456 * consistent, the space maps will be empty when we're done.
2457 * Anything left over is a leak; any block we can't claim (because
2458 * it's not part of any space map) is a double allocation,
2459 * reference to a freed block, or an unclaimed log block.
2460 */
2461 zdb_leak_init(spa, &zcb);
2462
2463 /*
2464 * If there's a deferred-free bplist, process that first.
2465 */
2466 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2467 count_block_cb, &zcb, NULL);
2468 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2469 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2470 count_block_cb, &zcb, NULL);
2471 }
2472 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2473 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2474 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2475 &zcb, NULL));
2476 }
2477
2478 if (dump_opt['c'] > 1)
2479 flags |= TRAVERSE_PREFETCH_DATA;
2480
2481 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2482 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2483 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2484
2485 /*
2486 * If we've traversed the data blocks then we need to wait for those
2487 * I/Os to complete. We leverage "The Godfather" zio to wait on
2488 * all async I/Os to complete.
2489 */
2490 if (dump_opt['c']) {
2491 (void) zio_wait(spa->spa_async_zio_root);
2492 spa->spa_async_zio_root = zio_root(spa, NULL, NULL,
2493 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2494 ZIO_FLAG_GODFATHER);
2495 }
2496
2497 if (zcb.zcb_haderrors) {
2498 (void) printf("\nError counts:\n\n");
2499 (void) printf("\t%5s %s\n", "errno", "count");
2500 for (int e = 0; e < 256; e++) {
2501 if (zcb.zcb_errors[e] != 0) {
2502 (void) printf("\t%5d %llu\n",
2503 e, (u_longlong_t)zcb.zcb_errors[e]);
2504 }
2505 }
2506 }
2507
2508 /*
2509 * Report any leaked segments.
2510 */
2511 zdb_leak_fini(spa);
2512
2513 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2514
2515 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2516 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2517
2518 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2519 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2520
2521 if (total_found == total_alloc) {
2522 if (!dump_opt['L'])
2523 (void) printf("\n\tNo leaks (block sum matches space"
2524 " maps exactly)\n");
2525 } else {
2526 (void) printf("block traversal size %llu != alloc %llu "
2527 "(%s %lld)\n",
2528 (u_longlong_t)total_found,
2529 (u_longlong_t)total_alloc,
2530 (dump_opt['L']) ? "unreachable" : "leaked",
2531 (longlong_t)(total_alloc - total_found));
2532 leaks = 1;
2533 }
2534
2535 if (tzb->zb_count == 0)
2536 return (2);
2537
2538 (void) printf("\n");
2539 (void) printf("\tbp count: %10llu\n",
2540 (u_longlong_t)tzb->zb_count);
2541 (void) printf("\tganged count: %10llu\n",
2542 (longlong_t)tzb->zb_gangs);
2543 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2544 (u_longlong_t)tzb->zb_lsize,
2545 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2546 (void) printf("\tbp physical: %10llu avg:"
2547 " %6llu compression: %6.2f\n",
2548 (u_longlong_t)tzb->zb_psize,
2549 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2550 (double)tzb->zb_lsize / tzb->zb_psize);
2551 (void) printf("\tbp allocated: %10llu avg:"
2552 " %6llu compression: %6.2f\n",
2553 (u_longlong_t)tzb->zb_asize,
2554 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2555 (double)tzb->zb_lsize / tzb->zb_asize);
2556 (void) printf("\tbp deduped: %10llu ref>1:"
2557 " %6llu deduplication: %6.2f\n",
2558 (u_longlong_t)zcb.zcb_dedup_asize,
2559 (u_longlong_t)zcb.zcb_dedup_blocks,
2560 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2561 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2562 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2563
2564 if (tzb->zb_ditto_samevdev != 0) {
2565 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2566 (longlong_t)tzb->zb_ditto_samevdev);
2567 }
2568
2569 if (dump_opt['b'] >= 2) {
2570 int l, t, level;
2571 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2572 "\t avg\t comp\t%%Total\tType\n");
2573
2574 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2575 char csize[32], lsize[32], psize[32], asize[32];
2576 char avg[32], gang[32];
2577 char *typename;
2578
2579 if (t < DMU_OT_NUMTYPES)
2580 typename = dmu_ot[t].ot_name;
2581 else
2582 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2583
2584 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2585 (void) printf("%6s\t%5s\t%5s\t%5s"
2586 "\t%5s\t%5s\t%6s\t%s\n",
2587 "-",
2588 "-",
2589 "-",
2590 "-",
2591 "-",
2592 "-",
2593 "-",
2594 typename);
2595 continue;
2596 }
2597
2598 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2599 level = (l == -1 ? ZB_TOTAL : l);
2600 zb = &zcb.zcb_type[level][t];
2601
2602 if (zb->zb_asize == 0)
2603 continue;
2604
2605 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2606 continue;
2607
2608 if (level == 0 && zb->zb_asize ==
2609 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2610 continue;
2611
2612 zdb_nicenum(zb->zb_count, csize);
2613 zdb_nicenum(zb->zb_lsize, lsize);
2614 zdb_nicenum(zb->zb_psize, psize);
2615 zdb_nicenum(zb->zb_asize, asize);
2616 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2617 zdb_nicenum(zb->zb_gangs, gang);
2618
2619 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2620 "\t%5.2f\t%6.2f\t",
2621 csize, lsize, psize, asize, avg,
2622 (double)zb->zb_lsize / zb->zb_psize,
2623 100.0 * zb->zb_asize / tzb->zb_asize);
2624
2625 if (level == ZB_TOTAL)
2626 (void) printf("%s\n", typename);
2627 else
2628 (void) printf(" L%d %s\n",
2629 level, typename);
2630
2631 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
2632 (void) printf("\t number of ganged "
2633 "blocks: %s\n", gang);
2634 }
2635
2636 if (dump_opt['b'] >= 4) {
2637 (void) printf("psize "
2638 "(in 512-byte sectors): "
2639 "number of blocks\n");
2640 dump_histogram(zb->zb_psize_histogram,
2641 PSIZE_HISTO_SIZE, 0);
2642 }
2643 }
2644 }
2645 }
2646
2647 (void) printf("\n");
2648
2649 if (leaks)
2650 return (2);
2651
2652 if (zcb.zcb_haderrors)
2653 return (3);
2654
2655 return (0);
2656 }
2657
2658 typedef struct zdb_ddt_entry {
2659 ddt_key_t zdde_key;
2660 uint64_t zdde_ref_blocks;
2661 uint64_t zdde_ref_lsize;
2662 uint64_t zdde_ref_psize;
2663 uint64_t zdde_ref_dsize;
2664 avl_node_t zdde_node;
2665 } zdb_ddt_entry_t;
2666
2667 /* ARGSUSED */
2668 static int
2669 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2670 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2671 {
2672 avl_tree_t *t = arg;
2673 avl_index_t where;
2674 zdb_ddt_entry_t *zdde, zdde_search;
2675
2676 if (bp == NULL)
2677 return (0);
2678
2679 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2680 (void) printf("traversing objset %llu, %llu objects, "
2681 "%lu blocks so far\n",
2682 (u_longlong_t)zb->zb_objset,
2683 (u_longlong_t)bp->blk_fill,
2684 avl_numnodes(t));
2685 }
2686
2687 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2688 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2689 return (0);
2690
2691 ddt_key_fill(&zdde_search.zdde_key, bp);
2692
2693 zdde = avl_find(t, &zdde_search, &where);
2694
2695 if (zdde == NULL) {
2696 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2697 zdde->zdde_key = zdde_search.zdde_key;
2698 avl_insert(t, zdde, where);
2699 }
2700
2701 zdde->zdde_ref_blocks += 1;
2702 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2703 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2704 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2705
2706 return (0);
2707 }
2708
2709 static void
2710 dump_simulated_ddt(spa_t *spa)
2711 {
2712 avl_tree_t t;
2713 void *cookie = NULL;
2714 zdb_ddt_entry_t *zdde;
2715 ddt_histogram_t ddh_total = { 0 };
2716 ddt_stat_t dds_total = { 0 };
2717
2718 avl_create(&t, ddt_entry_compare,
2719 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2720
2721 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2722
2723 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2724 zdb_ddt_add_cb, &t);
2725
2726 spa_config_exit(spa, SCL_CONFIG, FTAG);
2727
2728 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2729 ddt_stat_t dds;
2730 uint64_t refcnt = zdde->zdde_ref_blocks;
2731 ASSERT(refcnt != 0);
2732
2733 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2734 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2735 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2736 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2737
2738 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2739 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2740 dds.dds_ref_psize = zdde->zdde_ref_psize;
2741 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2742
2743 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0);
2744
2745 umem_free(zdde, sizeof (*zdde));
2746 }
2747
2748 avl_destroy(&t);
2749
2750 ddt_histogram_stat(&dds_total, &ddh_total);
2751
2752 (void) printf("Simulated DDT histogram:\n");
2753
2754 zpool_dump_ddt(&dds_total, &ddh_total);
2755
2756 dump_dedup_ratio(&dds_total);
2757 }
2758
2759 static void
2760 dump_zpool(spa_t *spa)
2761 {
2762 dsl_pool_t *dp = spa_get_dsl(spa);
2763 int rc = 0;
2764
2765 if (dump_opt['S']) {
2766 dump_simulated_ddt(spa);
2767 return;
2768 }
2769
2770 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2771 (void) printf("\nCached configuration:\n");
2772 dump_nvlist(spa->spa_config, 8);
2773 }
2774
2775 if (dump_opt['C'])
2776 dump_config(spa);
2777
2778 if (dump_opt['u'])
2779 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2780
2781 if (dump_opt['D'])
2782 dump_all_ddts(spa);
2783
2784 if (dump_opt['d'] > 2 || dump_opt['m'])
2785 dump_metaslabs(spa);
2786
2787 if (dump_opt['d'] || dump_opt['i']) {
2788 dump_dir(dp->dp_meta_objset);
2789 if (dump_opt['d'] >= 3) {
2790 dump_bpobj(&spa->spa_deferred_bpobj,
2791 "Deferred frees", 0);
2792 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2793 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2794 "Pool snapshot frees", 0);
2795 }
2796
2797 if (spa_feature_is_active(spa,
2798 SPA_FEATURE_ASYNC_DESTROY)) {
2799 dump_bptree(spa->spa_meta_objset,
2800 spa->spa_dsl_pool->dp_bptree_obj,
2801 "Pool dataset frees");
2802 }
2803 dump_dtl(spa->spa_root_vdev, 0);
2804 }
2805 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
2806 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
2807 }
2808 if (dump_opt['b'] || dump_opt['c'])
2809 rc = dump_block_stats(spa);
2810
2811 if (rc == 0)
2812 rc = verify_spacemap_refcounts(spa);
2813
2814 if (dump_opt['s'])
2815 show_pool_stats(spa);
2816
2817 if (dump_opt['h'])
2818 dump_history(spa);
2819
2820 if (rc != 0)
2821 exit(rc);
2822 }
2823
2824 #define ZDB_FLAG_CHECKSUM 0x0001
2825 #define ZDB_FLAG_DECOMPRESS 0x0002
2826 #define ZDB_FLAG_BSWAP 0x0004
2827 #define ZDB_FLAG_GBH 0x0008
2828 #define ZDB_FLAG_INDIRECT 0x0010
2829 #define ZDB_FLAG_PHYS 0x0020
2830 #define ZDB_FLAG_RAW 0x0040
2831 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
2832
2833 int flagbits[256];
2834
2835 static void
2836 zdb_print_blkptr(blkptr_t *bp, int flags)
2837 {
2838 char blkbuf[BP_SPRINTF_LEN];
2839
2840 if (flags & ZDB_FLAG_BSWAP)
2841 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
2842
2843 sprintf_blkptr(blkbuf, bp);
2844 (void) printf("%s\n", blkbuf);
2845 }
2846
2847 static void
2848 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
2849 {
2850 int i;
2851
2852 for (i = 0; i < nbps; i++)
2853 zdb_print_blkptr(&bp[i], flags);
2854 }
2855
2856 static void
2857 zdb_dump_gbh(void *buf, int flags)
2858 {
2859 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
2860 }
2861
2862 static void
2863 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
2864 {
2865 if (flags & ZDB_FLAG_BSWAP)
2866 byteswap_uint64_array(buf, size);
2867 (void) write(1, buf, size);
2868 }
2869
2870 static void
2871 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
2872 {
2873 uint64_t *d = (uint64_t *)buf;
2874 int nwords = size / sizeof (uint64_t);
2875 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
2876 int i, j;
2877 char *hdr, *c;
2878
2879
2880 if (do_bswap)
2881 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
2882 else
2883 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
2884
2885 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
2886
2887 for (i = 0; i < nwords; i += 2) {
2888 (void) printf("%06llx: %016llx %016llx ",
2889 (u_longlong_t)(i * sizeof (uint64_t)),
2890 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
2891 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
2892
2893 c = (char *)&d[i];
2894 for (j = 0; j < 2 * sizeof (uint64_t); j++)
2895 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
2896 (void) printf("\n");
2897 }
2898 }
2899
2900 /*
2901 * There are two acceptable formats:
2902 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
2903 * child[.child]* - For example: 0.1.1
2904 *
2905 * The second form can be used to specify arbitrary vdevs anywhere
2906 * in the heirarchy. For example, in a pool with a mirror of
2907 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
2908 */
2909 static vdev_t *
2910 zdb_vdev_lookup(vdev_t *vdev, char *path)
2911 {
2912 char *s, *p, *q;
2913 int i;
2914
2915 if (vdev == NULL)
2916 return (NULL);
2917
2918 /* First, assume the x.x.x.x format */
2919 i = (int)strtoul(path, &s, 10);
2920 if (s == path || (s && *s != '.' && *s != '\0'))
2921 goto name;
2922 if (i < 0 || i >= vdev->vdev_children)
2923 return (NULL);
2924
2925 vdev = vdev->vdev_child[i];
2926 if (*s == '\0')
2927 return (vdev);
2928 return (zdb_vdev_lookup(vdev, s+1));
2929
2930 name:
2931 for (i = 0; i < vdev->vdev_children; i++) {
2932 vdev_t *vc = vdev->vdev_child[i];
2933
2934 if (vc->vdev_path == NULL) {
2935 vc = zdb_vdev_lookup(vc, path);
2936 if (vc == NULL)
2937 continue;
2938 else
2939 return (vc);
2940 }
2941
2942 p = strrchr(vc->vdev_path, '/');
2943 p = p ? p + 1 : vc->vdev_path;
2944 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
2945
2946 if (strcmp(vc->vdev_path, path) == 0)
2947 return (vc);
2948 if (strcmp(p, path) == 0)
2949 return (vc);
2950 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
2951 return (vc);
2952 }
2953
2954 return (NULL);
2955 }
2956
2957 /*
2958 * Read a block from a pool and print it out. The syntax of the
2959 * block descriptor is:
2960 *
2961 * pool:vdev_specifier:offset:size[:flags]
2962 *
2963 * pool - The name of the pool you wish to read from
2964 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
2965 * offset - offset, in hex, in bytes
2966 * size - Amount of data to read, in hex, in bytes
2967 * flags - A string of characters specifying options
2968 * b: Decode a blkptr at given offset within block
2969 * *c: Calculate and display checksums
2970 * d: Decompress data before dumping
2971 * e: Byteswap data before dumping
2972 * g: Display data as a gang block header
2973 * i: Display as an indirect block
2974 * p: Do I/O to physical offset
2975 * r: Dump raw data to stdout
2976 *
2977 * * = not yet implemented
2978 */
2979 static void
2980 zdb_read_block(char *thing, spa_t *spa)
2981 {
2982 blkptr_t blk, *bp = &blk;
2983 dva_t *dva = bp->blk_dva;
2984 int flags = 0;
2985 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
2986 zio_t *zio;
2987 vdev_t *vd;
2988 void *pbuf, *lbuf, *buf;
2989 char *s, *p, *dup, *vdev, *flagstr;
2990 int i, error;
2991
2992 dup = strdup(thing);
2993 s = strtok(dup, ":");
2994 vdev = s ? s : "";
2995 s = strtok(NULL, ":");
2996 offset = strtoull(s ? s : "", NULL, 16);
2997 s = strtok(NULL, ":");
2998 size = strtoull(s ? s : "", NULL, 16);
2999 s = strtok(NULL, ":");
3000 flagstr = s ? s : "";
3001
3002 s = NULL;
3003 if (size == 0)
3004 s = "size must not be zero";
3005 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3006 s = "size must be a multiple of sector size";
3007 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3008 s = "offset must be a multiple of sector size";
3009 if (s) {
3010 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3011 free(dup);
3012 return;
3013 }
3014
3015 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3016 for (i = 0; flagstr[i]; i++) {
3017 int bit = flagbits[(uchar_t)flagstr[i]];
3018
3019 if (bit == 0) {
3020 (void) printf("***Invalid flag: %c\n",
3021 flagstr[i]);
3022 continue;
3023 }
3024 flags |= bit;
3025
3026 /* If it's not something with an argument, keep going */
3027 if ((bit & (ZDB_FLAG_CHECKSUM |
3028 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3029 continue;
3030
3031 p = &flagstr[i + 1];
3032 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3033 blkptr_offset = strtoull(p, &p, 16);
3034 if (*p != ':' && *p != '\0') {
3035 (void) printf("***Invalid flag arg: '%s'\n", s);
3036 free(dup);
3037 return;
3038 }
3039 }
3040 }
3041
3042 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3043 if (vd == NULL) {
3044 (void) printf("***Invalid vdev: %s\n", vdev);
3045 free(dup);
3046 return;
3047 } else {
3048 if (vd->vdev_path)
3049 (void) fprintf(stderr, "Found vdev: %s\n",
3050 vd->vdev_path);
3051 else
3052 (void) fprintf(stderr, "Found vdev type: %s\n",
3053 vd->vdev_ops->vdev_op_type);
3054 }
3055
3056 psize = size;
3057 lsize = size;
3058
3059 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3060 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3061
3062 BP_ZERO(bp);
3063
3064 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3065 DVA_SET_OFFSET(&dva[0], offset);
3066 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3067 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3068
3069 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3070
3071 BP_SET_LSIZE(bp, lsize);
3072 BP_SET_PSIZE(bp, psize);
3073 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3074 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3075 BP_SET_TYPE(bp, DMU_OT_NONE);
3076 BP_SET_LEVEL(bp, 0);
3077 BP_SET_DEDUP(bp, 0);
3078 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3079
3080 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3081 zio = zio_root(spa, NULL, NULL, 0);
3082
3083 if (vd == vd->vdev_top) {
3084 /*
3085 * Treat this as a normal block read.
3086 */
3087 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3088 ZIO_PRIORITY_SYNC_READ,
3089 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3090 } else {
3091 /*
3092 * Treat this as a vdev child I/O.
3093 */
3094 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3095 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3096 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3097 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3098 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3099 }
3100
3101 error = zio_wait(zio);
3102 spa_config_exit(spa, SCL_STATE, FTAG);
3103
3104 if (error) {
3105 (void) printf("Read of %s failed, error: %d\n", thing, error);
3106 goto out;
3107 }
3108
3109 if (flags & ZDB_FLAG_DECOMPRESS) {
3110 /*
3111 * We don't know how the data was compressed, so just try
3112 * every decompress function at every inflated blocksize.
3113 */
3114 enum zio_compress c;
3115 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3116 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3117
3118 bcopy(pbuf, pbuf2, psize);
3119
3120 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3121 SPA_MAXBLOCKSIZE - psize) == 0);
3122
3123 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3124 SPA_MAXBLOCKSIZE - psize) == 0);
3125
3126 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3127 lsize -= SPA_MINBLOCKSIZE) {
3128 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3129 if (zio_decompress_data(c, pbuf, lbuf,
3130 psize, lsize) == 0 &&
3131 zio_decompress_data(c, pbuf2, lbuf2,
3132 psize, lsize) == 0 &&
3133 bcmp(lbuf, lbuf2, lsize) == 0)
3134 break;
3135 }
3136 if (c != ZIO_COMPRESS_FUNCTIONS)
3137 break;
3138 lsize -= SPA_MINBLOCKSIZE;
3139 }
3140
3141 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3142 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3143
3144 if (lsize <= psize) {
3145 (void) printf("Decompress of %s failed\n", thing);
3146 goto out;
3147 }
3148 buf = lbuf;
3149 size = lsize;
3150 } else {
3151 buf = pbuf;
3152 size = psize;
3153 }
3154
3155 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3156 zdb_print_blkptr((blkptr_t *)(void *)
3157 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3158 else if (flags & ZDB_FLAG_RAW)
3159 zdb_dump_block_raw(buf, size, flags);
3160 else if (flags & ZDB_FLAG_INDIRECT)
3161 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3162 flags);
3163 else if (flags & ZDB_FLAG_GBH)
3164 zdb_dump_gbh(buf, flags);
3165 else
3166 zdb_dump_block(thing, buf, size, flags);
3167
3168 out:
3169 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3170 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3171 free(dup);
3172 }
3173
3174 static boolean_t
3175 pool_match(nvlist_t *cfg, char *tgt)
3176 {
3177 uint64_t v, guid = strtoull(tgt, NULL, 0);
3178 char *s;
3179
3180 if (guid != 0) {
3181 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3182 return (v == guid);
3183 } else {
3184 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3185 return (strcmp(s, tgt) == 0);
3186 }
3187 return (B_FALSE);
3188 }
3189
3190 static char *
3191 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3192 {
3193 nvlist_t *pools;
3194 nvlist_t *match = NULL;
3195 char *name = NULL;
3196 char *sepp = NULL;
3197 char sep;
3198 int count = 0;
3199 importargs_t args = { 0 };
3200
3201 args.paths = dirc;
3202 args.path = dirv;
3203 args.can_be_active = B_TRUE;
3204
3205 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3206 sep = *sepp;
3207 *sepp = '\0';
3208 }
3209
3210 pools = zpool_search_import(g_zfs, &args);
3211
3212 if (pools != NULL) {
3213 nvpair_t *elem = NULL;
3214 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3215 verify(nvpair_value_nvlist(elem, configp) == 0);
3216 if (pool_match(*configp, *target)) {
3217 count++;
3218 if (match != NULL) {
3219 /* print previously found config */
3220 if (name != NULL) {
3221 (void) printf("%s\n", name);
3222 dump_nvlist(match, 8);
3223 name = NULL;
3224 }
3225 (void) printf("%s\n",
3226 nvpair_name(elem));
3227 dump_nvlist(*configp, 8);
3228 } else {
3229 match = *configp;
3230 name = nvpair_name(elem);
3231 }
3232 }
3233 }
3234 }
3235 if (count > 1)
3236 (void) fatal("\tMatched %d pools - use pool GUID "
3237 "instead of pool name or \n"
3238 "\tpool name part of a dataset name to select pool", count);
3239
3240 if (sepp)
3241 *sepp = sep;
3242 /*
3243 * If pool GUID was specified for pool id, replace it with pool name
3244 */
3245 if (name && (strstr(*target, name) != *target)) {
3246 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3247
3248 *target = umem_alloc(sz, UMEM_NOFAIL);
3249 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3250 }
3251
3252 *configp = name ? match : NULL;
3253
3254 return (name);
3255 }
3256
3257 int
3258 main(int argc, char **argv)
3259 {
3260 int i, c;
3261 struct rlimit rl = { 1024, 1024 };
3262 spa_t *spa = NULL;
3263 objset_t *os = NULL;
3264 int dump_all = 1;
3265 int verbose = 0;
3266 int error = 0;
3267 char **searchdirs = NULL;
3268 int nsearch = 0;
3269 char *target;
3270 nvlist_t *policy = NULL;
3271 uint64_t max_txg = UINT64_MAX;
3272 int rewind = ZPOOL_NEVER_REWIND;
3273
3274 (void) setrlimit(RLIMIT_NOFILE, &rl);
3275 (void) enable_extended_FILE_stdio(-1, -1);
3276
3277 dprintf_setup(&argc, argv);
3278
3279 while ((c = getopt(argc, argv, "bcdhilmM:suCDRSAFLXevp:t:U:P")) != -1) {
3280 switch (c) {
3281 case 'b':
3282 case 'c':
3283 case 'd':
3284 case 'h':
3285 case 'i':
3286 case 'l':
3287 case 'm':
3288 case 's':
3289 case 'u':
3290 case 'C':
3291 case 'D':
3292 case 'R':
3293 case 'S':
3294 dump_opt[c]++;
3295 dump_all = 0;
3296 break;
3297 case 'A':
3298 case 'F':
3299 case 'L':
3300 case 'X':
3301 case 'e':
3302 case 'P':
3303 dump_opt[c]++;
3304 break;
3305 case 'v':
3306 verbose++;
3307 break;
3308 case 'M':
3309 max_inflight = strtoull(optarg, NULL, 0);
3310 if (max_inflight == 0) {
3311 (void) fprintf(stderr, "maximum number "
3312 "of inflight I/Os must be greater "
3313 "than 0\n");
3314 usage();
3315 }
3316 break;
3317 case 'p':
3318 if (searchdirs == NULL) {
3319 searchdirs = umem_alloc(sizeof (char *),
3320 UMEM_NOFAIL);
3321 } else {
3322 char **tmp = umem_alloc((nsearch + 1) *
3323 sizeof (char *), UMEM_NOFAIL);
3324 bcopy(searchdirs, tmp, nsearch *
3325 sizeof (char *));
3326 umem_free(searchdirs,
3327 nsearch * sizeof (char *));
3328 searchdirs = tmp;
3329 }
3330 searchdirs[nsearch++] = optarg;
3331 break;
3332 case 't':
3333 max_txg = strtoull(optarg, NULL, 0);
3334 if (max_txg < TXG_INITIAL) {
3335 (void) fprintf(stderr, "incorrect txg "
3336 "specified: %s\n", optarg);
3337 usage();
3338 }
3339 break;
3340 case 'U':
3341 spa_config_path = optarg;
3342 break;
3343 default:
3344 usage();
3345 break;
3346 }
3347 }
3348
3349 if (!dump_opt['e'] && searchdirs != NULL) {
3350 (void) fprintf(stderr, "-p option requires use of -e\n");
3351 usage();
3352 }
3353
3354 kernel_init(FREAD);
3355 g_zfs = libzfs_init();
3356 ASSERT(g_zfs != NULL);
3357
3358 if (dump_all)
3359 verbose = MAX(verbose, 1);
3360
3361 for (c = 0; c < 256; c++) {
3362 if (dump_all && !strchr("elAFLRSXP", c))
3363 dump_opt[c] = 1;
3364 if (dump_opt[c])
3365 dump_opt[c] += verbose;
3366 }
3367
3368 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3369 zfs_recover = (dump_opt['A'] > 1);
3370
3371 argc -= optind;
3372 argv += optind;
3373
3374 if (argc < 2 && dump_opt['R'])
3375 usage();
3376 if (argc < 1) {
3377 if (!dump_opt['e'] && dump_opt['C']) {
3378 dump_cachefile(spa_config_path);
3379 return (0);
3380 }
3381 usage();
3382 }
3383
3384 if (dump_opt['l']) {
3385 dump_label(argv[0]);
3386 return (0);
3387 }
3388
3389 if (dump_opt['X'] || dump_opt['F'])
3390 rewind = ZPOOL_DO_REWIND |
3391 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3392
3393 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3394 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3395 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3396 fatal("internal error: %s", strerror(ENOMEM));
3397
3398 error = 0;
3399 target = argv[0];
3400
3401 if (dump_opt['e']) {
3402 nvlist_t *cfg = NULL;
3403 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3404
3405 error = ENOENT;
3406 if (name) {
3407 if (dump_opt['C'] > 1) {
3408 (void) printf("\nConfiguration for import:\n");
3409 dump_nvlist(cfg, 8);
3410 }
3411 if (nvlist_add_nvlist(cfg,
3412 ZPOOL_REWIND_POLICY, policy) != 0) {
3413 fatal("can't open '%s': %s",
3414 target, strerror(ENOMEM));
3415 }
3416 if ((error = spa_import(name, cfg, NULL,
3417 ZFS_IMPORT_MISSING_LOG)) != 0) {
3418 error = spa_import(name, cfg, NULL,
3419 ZFS_IMPORT_VERBATIM);
3420 }
3421 }
3422 }
3423
3424 if (error == 0) {
3425 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3426 error = spa_open_rewind(target, &spa, FTAG, policy,
3427 NULL);
3428 if (error) {
3429 /*
3430 * If we're missing the log device then
3431 * try opening the pool after clearing the
3432 * log state.
3433 */
3434 mutex_enter(&spa_namespace_lock);
3435 if ((spa = spa_lookup(target)) != NULL &&
3436 spa->spa_log_state == SPA_LOG_MISSING) {
3437 spa->spa_log_state = SPA_LOG_CLEAR;
3438 error = 0;
3439 }
3440 mutex_exit(&spa_namespace_lock);
3441
3442 if (!error) {
3443 error = spa_open_rewind(target, &spa,
3444 FTAG, policy, NULL);
3445 }
3446 }
3447 } else {
3448 error = dmu_objset_own(target, DMU_OST_ANY,
3449 B_TRUE, FTAG, &os);
3450 }
3451 }
3452 nvlist_free(policy);
3453
3454 if (error)
3455 fatal("can't open '%s': %s", target, strerror(error));
3456
3457 argv++;
3458 argc--;
3459 if (!dump_opt['R']) {
3460 if (argc > 0) {
3461 zopt_objects = argc;
3462 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3463 for (i = 0; i < zopt_objects; i++) {
3464 errno = 0;
3465 zopt_object[i] = strtoull(argv[i], NULL, 0);
3466 if (zopt_object[i] == 0 && errno != 0)
3467 fatal("bad number %s: %s",
3468 argv[i], strerror(errno));
3469 }
3470 }
3471 if (os != NULL) {
3472 dump_dir(os);
3473 } else if (zopt_objects > 0 && !dump_opt['m']) {
3474 dump_dir(spa->spa_meta_objset);
3475 } else {
3476 dump_zpool(spa);
3477 }
3478 } else {
3479 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3480 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3481 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3482 flagbits['e'] = ZDB_FLAG_BSWAP;
3483 flagbits['g'] = ZDB_FLAG_GBH;
3484 flagbits['i'] = ZDB_FLAG_INDIRECT;
3485 flagbits['p'] = ZDB_FLAG_PHYS;
3486 flagbits['r'] = ZDB_FLAG_RAW;
3487
3488 for (i = 0; i < argc; i++)
3489 zdb_read_block(argv[i], spa);
3490 }
3491
3492 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3493
3494 fuid_table_destroy();
3495 sa_loaded = B_FALSE;
3496
3497 libzfs_fini(g_zfs);
3498 kernel_fini();
3499
3500 return (0);
3501 }