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