]> git.proxmox.com Git - mirror_zfs.git/blob - cmd/zdb/zdb.c
projects / mirror_zfs.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Illumos 4757, 4913
[mirror_zfs.git] / cmd / zdb / zdb.c
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) 2012, 2014 by Delphix. All rights reserved.
25 */
26
27 #include <stdio.h>
28 #include <unistd.h>
29 #include <stdio_ext.h>
30 #include <stdlib.h>
31 #include <ctype.h>
32 #include <sys/zfs_context.h>
33 #include <sys/spa.h>
34 #include <sys/spa_impl.h>
35 #include <sys/dmu.h>
36 #include <sys/zap.h>
37 #include <sys/fs/zfs.h>
38 #include <sys/zfs_znode.h>
39 #include <sys/zfs_sa.h>
40 #include <sys/sa.h>
41 #include <sys/sa_impl.h>
42 #include <sys/vdev.h>
43 #include <sys/vdev_impl.h>
44 #include <sys/metaslab_impl.h>
45 #include <sys/dmu_objset.h>
46 #include <sys/dsl_dir.h>
47 #include <sys/dsl_dataset.h>
48 #include <sys/dsl_pool.h>
49 #include <sys/dbuf.h>
50 #include <sys/zil.h>
51 #include <sys/zil_impl.h>
52 #include <sys/stat.h>
53 #include <sys/resource.h>
54 #include <sys/dmu_traverse.h>
55 #include <sys/zio_checksum.h>
56 #include <sys/zio_compress.h>
57 #include <sys/zfs_fuid.h>
58 #include <sys/arc.h>
59 #include <sys/ddt.h>
60 #include <sys/zfeature.h>
61 #include <zfs_comutil.h>
62 #undef ZFS_MAXNAMELEN
63 #include <libzfs.h>
64
65 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
66 zio_compress_table[(idx)].ci_name : "UNKNOWN")
67 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
68 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
69 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
70 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
71 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
72 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
73 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
74 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
75
76 #ifndef lint
77 extern int zfs_recover;
78 #else
79 int zfs_recover;
80 #endif
81
82 const char cmdname[] = "zdb";
83 uint8_t dump_opt[256];
84
85 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
86
87 extern void dump_intent_log(zilog_t *);
88 uint64_t *zopt_object = NULL;
89 int zopt_objects = 0;
90 libzfs_handle_t *g_zfs;
91 uint64_t max_inflight = 200;
92
93 /*
94 * These libumem hooks provide a reasonable set of defaults for the allocator's
95 * debugging facilities.
96 */
97 const char *
98 _umem_debug_init(void)
99 {
100 return ("default,verbose"); /* $UMEM_DEBUG setting */
101 }
102
103 const char *
104 _umem_logging_init(void)
105 {
106 return ("fail,contents"); /* $UMEM_LOGGING setting */
107 }
108
109 static void
110 usage(void)
111 {
112 (void) fprintf(stderr,
113 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
114 "[-U config] [-M inflight I/Os] poolname [object...]\n"
115 " %s [-divPA] [-e -p path...] [-U config] dataset "
116 "[object...]\n"
117 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
118 "poolname [vdev [metaslab...]]\n"
119 " %s -R [-A] [-e [-p path...]] poolname "
120 "vdev:offset:size[:flags]\n"
121 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n"
122 " %s -l [-uA] device\n"
123 " %s -C [-A] [-U config]\n\n",
124 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
125
126 (void) fprintf(stderr, " Dataset name must include at least one "
127 "separator character '/' or '@'\n");
128 (void) fprintf(stderr, " If dataset name is specified, only that "
129 "dataset is dumped\n");
130 (void) fprintf(stderr, " If object numbers are specified, only "
131 "those objects are dumped\n\n");
132 (void) fprintf(stderr, " Options to control amount of output:\n");
133 (void) fprintf(stderr, " -u uberblock\n");
134 (void) fprintf(stderr, " -d dataset(s)\n");
135 (void) fprintf(stderr, " -i intent logs\n");
136 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
137 (void) fprintf(stderr, " -h pool history\n");
138 (void) fprintf(stderr, " -b block statistics\n");
139 (void) fprintf(stderr, " -m metaslabs\n");
140 (void) fprintf(stderr, " -c checksum all metadata (twice for "
141 "all data) blocks\n");
142 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
143 (void) fprintf(stderr, " -D dedup statistics\n");
144 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
145 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
146 (void) fprintf(stderr, " -l dump label contents\n");
147 (void) fprintf(stderr, " -L disable leak tracking (do not "
148 "load spacemaps)\n");
149 (void) fprintf(stderr, " -R read and display block from a "
150 "device\n\n");
151 (void) fprintf(stderr, " Below options are intended for use "
152 "with other options (except -l):\n");
153 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
154 "panic recovery (-AA) or both (-AAA)\n");
155 (void) fprintf(stderr, " -F attempt automatic rewind within "
156 "safe range of transaction groups\n");
157 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
158 "cachefile\n");
159 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
160 "work with dataset)\n");
161 (void) fprintf(stderr, " -e pool is exported/destroyed/"
162 "has altroot/not in a cachefile\n");
163 (void) fprintf(stderr, " -p <path> -- use one or more with "
164 "-e to specify path to vdev dir\n");
165 (void) fprintf(stderr, " -P print numbers in parseable form\n");
166 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
167 "searching for uberblocks\n");
168 (void) fprintf(stderr, " -M <number of inflight I/Os> -- "
169 "specify the maximum number of checksumming I/Os "
170 "[default is 200]\n");
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 int c;
529
530 if (vd->vdev_ops->vdev_op_leaf) {
531 space_map_t *sm = vd->vdev_dtl_sm;
532
533 if (sm != NULL &&
534 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
535 return (1);
536 return (0);
537 }
538
539 for (c = 0; c < vd->vdev_children; c++)
540 refcount += get_dtl_refcount(vd->vdev_child[c]);
541 return (refcount);
542 }
543
544 int
545 get_metaslab_refcount(vdev_t *vd)
546 {
547 int refcount = 0;
548 int c, m;
549
550 if (vd->vdev_top == vd) {
551 for (m = 0; m < vd->vdev_ms_count; m++) {
552 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
553
554 if (sm != NULL &&
555 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
556 refcount++;
557 }
558 }
559 for (c = 0; c < vd->vdev_children; c++)
560 refcount += get_metaslab_refcount(vd->vdev_child[c]);
561
562 return (refcount);
563 }
564
565 static int
566 verify_spacemap_refcounts(spa_t *spa)
567 {
568 uint64_t expected_refcount = 0;
569 uint64_t actual_refcount;
570
571 (void) feature_get_refcount(spa,
572 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
573 &expected_refcount);
574 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
575 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
576
577 if (expected_refcount != actual_refcount) {
578 (void) printf("space map refcount mismatch: expected %lld != "
579 "actual %lld\n",
580 (longlong_t)expected_refcount,
581 (longlong_t)actual_refcount);
582 return (2);
583 }
584 return (0);
585 }
586
587 static void
588 dump_spacemap(objset_t *os, space_map_t *sm)
589 {
590 uint64_t alloc, offset, entry;
591 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
592 "INVALID", "INVALID", "INVALID", "INVALID" };
593
594 if (sm == NULL)
595 return;
596
597 /*
598 * Print out the freelist entries in both encoded and decoded form.
599 */
600 alloc = 0;
601 for (offset = 0; offset < space_map_length(sm);
602 offset += sizeof (entry)) {
603 uint8_t mapshift = sm->sm_shift;
604
605 VERIFY0(dmu_read(os, space_map_object(sm), offset,
606 sizeof (entry), &entry, DMU_READ_PREFETCH));
607 if (SM_DEBUG_DECODE(entry)) {
608
609 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
610 (u_longlong_t)(offset / sizeof (entry)),
611 ddata[SM_DEBUG_ACTION_DECODE(entry)],
612 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
613 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
614 } else {
615 (void) printf("\t [%6llu] %c range:"
616 " %010llx-%010llx size: %06llx\n",
617 (u_longlong_t)(offset / sizeof (entry)),
618 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
619 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
620 mapshift) + sm->sm_start),
621 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
622 mapshift) + sm->sm_start +
623 (SM_RUN_DECODE(entry) << mapshift)),
624 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
625 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
626 alloc += SM_RUN_DECODE(entry) << mapshift;
627 else
628 alloc -= SM_RUN_DECODE(entry) << mapshift;
629 }
630 }
631 if (alloc != space_map_allocated(sm)) {
632 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
633 "with space map summary (%llu)\n",
634 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
635 }
636 }
637
638 static void
639 dump_metaslab_stats(metaslab_t *msp)
640 {
641 char maxbuf[32];
642 range_tree_t *rt = msp->ms_tree;
643 avl_tree_t *t = &msp->ms_size_tree;
644 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
645
646 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
647
648 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
649 "segments", avl_numnodes(t), "maxsize", maxbuf,
650 "freepct", free_pct);
651 (void) printf("\tIn-memory histogram:\n");
652 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
653 }
654
655 static void
656 dump_metaslab(metaslab_t *msp)
657 {
658 vdev_t *vd = msp->ms_group->mg_vd;
659 spa_t *spa = vd->vdev_spa;
660 space_map_t *sm = msp->ms_sm;
661 char freebuf[32];
662
663 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
664
665 (void) printf(
666 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
667 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
668 (u_longlong_t)space_map_object(sm), freebuf);
669
670 if (dump_opt['m'] > 2 && !dump_opt['L']) {
671 mutex_enter(&msp->ms_lock);
672 metaslab_load_wait(msp);
673 if (!msp->ms_loaded) {
674 VERIFY0(metaslab_load(msp));
675 range_tree_stat_verify(msp->ms_tree);
676 }
677 dump_metaslab_stats(msp);
678 metaslab_unload(msp);
679 mutex_exit(&msp->ms_lock);
680 }
681
682 if (dump_opt['m'] > 1 && sm != NULL &&
683 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
684 /*
685 * The space map histogram represents free space in chunks
686 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
687 */
688 (void) printf("\tOn-disk histogram:\n");
689 dump_histogram(sm->sm_phys->smp_histogram,
690 SPACE_MAP_HISTOGRAM_SIZE(sm), sm->sm_shift);
691 }
692
693 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
694 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
695
696 mutex_enter(&msp->ms_lock);
697 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
698 mutex_exit(&msp->ms_lock);
699 }
700 }
701
702 static void
703 print_vdev_metaslab_header(vdev_t *vd)
704 {
705 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
706 (u_longlong_t)vd->vdev_id,
707 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
708 "offset", "spacemap", "free");
709 (void) printf("\t%15s %19s %15s %10s\n",
710 "---------------", "-------------------",
711 "---------------", "-------------");
712 }
713
714 static void
715 dump_metaslabs(spa_t *spa)
716 {
717 vdev_t *vd, *rvd = spa->spa_root_vdev;
718 uint64_t m, c = 0, children = rvd->vdev_children;
719
720 (void) printf("\nMetaslabs:\n");
721
722 if (!dump_opt['d'] && zopt_objects > 0) {
723 c = zopt_object[0];
724
725 if (c >= children)
726 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
727
728 if (zopt_objects > 1) {
729 vd = rvd->vdev_child[c];
730 print_vdev_metaslab_header(vd);
731
732 for (m = 1; m < zopt_objects; m++) {
733 if (zopt_object[m] < vd->vdev_ms_count)
734 dump_metaslab(
735 vd->vdev_ms[zopt_object[m]]);
736 else
737 (void) fprintf(stderr, "bad metaslab "
738 "number %llu\n",
739 (u_longlong_t)zopt_object[m]);
740 }
741 (void) printf("\n");
742 return;
743 }
744 children = c + 1;
745 }
746 for (; c < children; c++) {
747 vd = rvd->vdev_child[c];
748 print_vdev_metaslab_header(vd);
749
750 for (m = 0; m < vd->vdev_ms_count; m++)
751 dump_metaslab(vd->vdev_ms[m]);
752 (void) printf("\n");
753 }
754 }
755
756 static void
757 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
758 {
759 const ddt_phys_t *ddp = dde->dde_phys;
760 const ddt_key_t *ddk = &dde->dde_key;
761 char *types[4] = { "ditto", "single", "double", "triple" };
762 char blkbuf[BP_SPRINTF_LEN];
763 blkptr_t blk;
764 int p;
765
766 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
767 if (ddp->ddp_phys_birth == 0)
768 continue;
769 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
770 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
771 (void) printf("index %llx refcnt %llu %s %s\n",
772 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
773 types[p], blkbuf);
774 }
775 }
776
777 static void
778 dump_dedup_ratio(const ddt_stat_t *dds)
779 {
780 double rL, rP, rD, D, dedup, compress, copies;
781
782 if (dds->dds_blocks == 0)
783 return;
784
785 rL = (double)dds->dds_ref_lsize;
786 rP = (double)dds->dds_ref_psize;
787 rD = (double)dds->dds_ref_dsize;
788 D = (double)dds->dds_dsize;
789
790 dedup = rD / D;
791 compress = rL / rP;
792 copies = rD / rP;
793
794 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
795 "dedup * compress / copies = %.2f\n\n",
796 dedup, compress, copies, dedup * compress / copies);
797 }
798
799 static void
800 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
801 {
802 char name[DDT_NAMELEN];
803 ddt_entry_t dde;
804 uint64_t walk = 0;
805 dmu_object_info_t doi;
806 uint64_t count, dspace, mspace;
807 int error;
808
809 error = ddt_object_info(ddt, type, class, &doi);
810
811 if (error == ENOENT)
812 return;
813 ASSERT(error == 0);
814
815 error = ddt_object_count(ddt, type, class, &count);
816 ASSERT(error == 0);
817 if (count == 0)
818 return;
819
820 dspace = doi.doi_physical_blocks_512 << 9;
821 mspace = doi.doi_fill_count * doi.doi_data_block_size;
822
823 ddt_object_name(ddt, type, class, name);
824
825 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
826 name,
827 (u_longlong_t)count,
828 (u_longlong_t)(dspace / count),
829 (u_longlong_t)(mspace / count));
830
831 if (dump_opt['D'] < 3)
832 return;
833
834 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
835
836 if (dump_opt['D'] < 4)
837 return;
838
839 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
840 return;
841
842 (void) printf("%s contents:\n\n", name);
843
844 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
845 dump_dde(ddt, &dde, walk);
846
847 ASSERT(error == ENOENT);
848
849 (void) printf("\n");
850 }
851
852 static void
853 dump_all_ddts(spa_t *spa)
854 {
855 ddt_histogram_t ddh_total;
856 ddt_stat_t dds_total;
857 enum zio_checksum c;
858 enum ddt_type type;
859 enum ddt_class class;
860
861 bzero(&ddh_total, sizeof (ddt_histogram_t));
862 bzero(&dds_total, sizeof (ddt_stat_t));
863
864 for (c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
865 ddt_t *ddt = spa->spa_ddt[c];
866 for (type = 0; type < DDT_TYPES; type++) {
867 for (class = 0; class < DDT_CLASSES;
868 class++) {
869 dump_ddt(ddt, type, class);
870 }
871 }
872 }
873
874 ddt_get_dedup_stats(spa, &dds_total);
875
876 if (dds_total.dds_blocks == 0) {
877 (void) printf("All DDTs are empty\n");
878 return;
879 }
880
881 (void) printf("\n");
882
883 if (dump_opt['D'] > 1) {
884 (void) printf("DDT histogram (aggregated over all DDTs):\n");
885 ddt_get_dedup_histogram(spa, &ddh_total);
886 zpool_dump_ddt(&dds_total, &ddh_total);
887 }
888
889 dump_dedup_ratio(&dds_total);
890 }
891
892 static void
893 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
894 {
895 char *prefix = arg;
896
897 (void) printf("%s [%llu,%llu) length %llu\n",
898 prefix,
899 (u_longlong_t)start,
900 (u_longlong_t)(start + size),
901 (u_longlong_t)(size));
902 }
903
904 static void
905 dump_dtl(vdev_t *vd, int indent)
906 {
907 spa_t *spa = vd->vdev_spa;
908 boolean_t required;
909 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
910 char prefix[256];
911 int c, t;
912
913 spa_vdev_state_enter(spa, SCL_NONE);
914 required = vdev_dtl_required(vd);
915 (void) spa_vdev_state_exit(spa, NULL, 0);
916
917 if (indent == 0)
918 (void) printf("\nDirty time logs:\n\n");
919
920 (void) printf("\t%*s%s [%s]\n", indent, "",
921 vd->vdev_path ? vd->vdev_path :
922 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
923 required ? "DTL-required" : "DTL-expendable");
924
925 for (t = 0; t < DTL_TYPES; t++) {
926 range_tree_t *rt = vd->vdev_dtl[t];
927 if (range_tree_space(rt) == 0)
928 continue;
929 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
930 indent + 2, "", name[t]);
931 mutex_enter(rt->rt_lock);
932 range_tree_walk(rt, dump_dtl_seg, prefix);
933 mutex_exit(rt->rt_lock);
934 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
935 dump_spacemap(spa->spa_meta_objset,
936 vd->vdev_dtl_sm);
937 }
938
939 for (c = 0; c < vd->vdev_children; c++)
940 dump_dtl(vd->vdev_child[c], indent + 4);
941 }
942
943 static void
944 dump_history(spa_t *spa)
945 {
946 nvlist_t **events = NULL;
947 char buf[SPA_MAXBLOCKSIZE];
948 uint64_t resid, len, off = 0;
949 uint_t num = 0;
950 int error;
951 time_t tsec;
952 struct tm t;
953 char tbuf[30];
954 char internalstr[MAXPATHLEN];
955 int i;
956
957 do {
958 len = sizeof (buf);
959
960 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
961 (void) fprintf(stderr, "Unable to read history: "
962 "error %d\n", error);
963 return;
964 }
965
966 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
967 break;
968
969 off -= resid;
970 } while (len != 0);
971
972 (void) printf("\nHistory:\n");
973 for (i = 0; i < num; i++) {
974 uint64_t time, txg, ievent;
975 char *cmd, *intstr;
976 boolean_t printed = B_FALSE;
977
978 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
979 &time) != 0)
980 goto next;
981 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
982 &cmd) != 0) {
983 if (nvlist_lookup_uint64(events[i],
984 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
985 goto next;
986 verify(nvlist_lookup_uint64(events[i],
987 ZPOOL_HIST_TXG, &txg) == 0);
988 verify(nvlist_lookup_string(events[i],
989 ZPOOL_HIST_INT_STR, &intstr) == 0);
990 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
991 goto next;
992
993 (void) snprintf(internalstr,
994 sizeof (internalstr),
995 "[internal %s txg:%lld] %s",
996 zfs_history_event_names[ievent],
997 (longlong_t)txg, intstr);
998 cmd = internalstr;
999 }
1000 tsec = time;
1001 (void) localtime_r(&tsec, &t);
1002 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1003 (void) printf("%s %s\n", tbuf, cmd);
1004 printed = B_TRUE;
1005
1006 next:
1007 if (dump_opt['h'] > 1) {
1008 if (!printed)
1009 (void) printf("unrecognized record:\n");
1010 dump_nvlist(events[i], 2);
1011 }
1012 }
1013 }
1014
1015 /*ARGSUSED*/
1016 static void
1017 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1018 {
1019 }
1020
1021 static uint64_t
1022 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb)
1023 {
1024 if (dnp == NULL) {
1025 ASSERT(zb->zb_level < 0);
1026 if (zb->zb_object == 0)
1027 return (zb->zb_blkid);
1028 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1029 }
1030
1031 ASSERT(zb->zb_level >= 0);
1032
1033 return ((zb->zb_blkid <<
1034 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1035 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1036 }
1037
1038 static void
1039 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1040 {
1041 const dva_t *dva = bp->blk_dva;
1042 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1043 int i;
1044
1045 if (dump_opt['b'] >= 6) {
1046 snprintf_blkptr(blkbuf, buflen, bp);
1047 return;
1048 }
1049
1050 if (BP_IS_EMBEDDED(bp)) {
1051 (void) sprintf(blkbuf,
1052 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1053 (int)BPE_GET_ETYPE(bp),
1054 (u_longlong_t)BPE_GET_LSIZE(bp),
1055 (u_longlong_t)BPE_GET_PSIZE(bp),
1056 (u_longlong_t)bp->blk_birth);
1057 return;
1058 }
1059
1060 blkbuf[0] = '\0';
1061
1062 for (i = 0; i < ndvas; i++)
1063 (void) snprintf(blkbuf + strlen(blkbuf),
1064 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1065 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1066 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1067 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1068
1069 if (BP_IS_HOLE(bp)) {
1070 (void) snprintf(blkbuf + strlen(blkbuf),
1071 buflen - strlen(blkbuf), "B=%llu",
1072 (u_longlong_t)bp->blk_birth);
1073 } else {
1074 (void) snprintf(blkbuf + strlen(blkbuf),
1075 buflen - strlen(blkbuf),
1076 "%llxL/%llxP F=%llu B=%llu/%llu",
1077 (u_longlong_t)BP_GET_LSIZE(bp),
1078 (u_longlong_t)BP_GET_PSIZE(bp),
1079 (u_longlong_t)BP_GET_FILL(bp),
1080 (u_longlong_t)bp->blk_birth,
1081 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1082 }
1083 }
1084
1085 static void
1086 print_indirect(blkptr_t *bp, const zbookmark_t *zb,
1087 const dnode_phys_t *dnp)
1088 {
1089 char blkbuf[BP_SPRINTF_LEN];
1090 int l;
1091
1092 if (!BP_IS_EMBEDDED(bp)) {
1093 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1094 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1095 }
1096
1097 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1098
1099 ASSERT(zb->zb_level >= 0);
1100
1101 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1102 if (l == zb->zb_level) {
1103 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1104 } else {
1105 (void) printf(" ");
1106 }
1107 }
1108
1109 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1110 (void) printf("%s\n", blkbuf);
1111 }
1112
1113 static int
1114 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1115 blkptr_t *bp, const zbookmark_t *zb)
1116 {
1117 int err = 0;
1118
1119 if (bp->blk_birth == 0)
1120 return (0);
1121
1122 print_indirect(bp, zb, dnp);
1123
1124 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1125 uint32_t flags = ARC_WAIT;
1126 int i;
1127 blkptr_t *cbp;
1128 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1129 arc_buf_t *buf;
1130 uint64_t fill = 0;
1131
1132 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1133 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1134 if (err)
1135 return (err);
1136 ASSERT(buf->b_data);
1137
1138 /* recursively visit blocks below this */
1139 cbp = buf->b_data;
1140 for (i = 0; i < epb; i++, cbp++) {
1141 zbookmark_t czb;
1142
1143 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1144 zb->zb_level - 1,
1145 zb->zb_blkid * epb + i);
1146 err = visit_indirect(spa, dnp, cbp, &czb);
1147 if (err)
1148 break;
1149 fill += BP_GET_FILL(cbp);
1150 }
1151 if (!err)
1152 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1153 (void) arc_buf_remove_ref(buf, &buf);
1154 }
1155
1156 return (err);
1157 }
1158
1159 /*ARGSUSED*/
1160 static void
1161 dump_indirect(dnode_t *dn)
1162 {
1163 dnode_phys_t *dnp = dn->dn_phys;
1164 int j;
1165 zbookmark_t czb;
1166
1167 (void) printf("Indirect blocks:\n");
1168
1169 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1170 dn->dn_object, dnp->dn_nlevels - 1, 0);
1171 for (j = 0; j < dnp->dn_nblkptr; j++) {
1172 czb.zb_blkid = j;
1173 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1174 &dnp->dn_blkptr[j], &czb);
1175 }
1176
1177 (void) printf("\n");
1178 }
1179
1180 /*ARGSUSED*/
1181 static void
1182 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1183 {
1184 dsl_dir_phys_t *dd = data;
1185 time_t crtime;
1186 char nice[32];
1187
1188 if (dd == NULL)
1189 return;
1190
1191 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1192
1193 crtime = dd->dd_creation_time;
1194 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1195 (void) printf("\t\thead_dataset_obj = %llu\n",
1196 (u_longlong_t)dd->dd_head_dataset_obj);
1197 (void) printf("\t\tparent_dir_obj = %llu\n",
1198 (u_longlong_t)dd->dd_parent_obj);
1199 (void) printf("\t\torigin_obj = %llu\n",
1200 (u_longlong_t)dd->dd_origin_obj);
1201 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1202 (u_longlong_t)dd->dd_child_dir_zapobj);
1203 zdb_nicenum(dd->dd_used_bytes, nice);
1204 (void) printf("\t\tused_bytes = %s\n", nice);
1205 zdb_nicenum(dd->dd_compressed_bytes, nice);
1206 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1207 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1208 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1209 zdb_nicenum(dd->dd_quota, nice);
1210 (void) printf("\t\tquota = %s\n", nice);
1211 zdb_nicenum(dd->dd_reserved, nice);
1212 (void) printf("\t\treserved = %s\n", nice);
1213 (void) printf("\t\tprops_zapobj = %llu\n",
1214 (u_longlong_t)dd->dd_props_zapobj);
1215 (void) printf("\t\tdeleg_zapobj = %llu\n",
1216 (u_longlong_t)dd->dd_deleg_zapobj);
1217 (void) printf("\t\tflags = %llx\n",
1218 (u_longlong_t)dd->dd_flags);
1219
1220 #define DO(which) \
1221 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1222 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1223 DO(HEAD);
1224 DO(SNAP);
1225 DO(CHILD);
1226 DO(CHILD_RSRV);
1227 DO(REFRSRV);
1228 #undef DO
1229 }
1230
1231 /*ARGSUSED*/
1232 static void
1233 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1234 {
1235 dsl_dataset_phys_t *ds = data;
1236 time_t crtime;
1237 char used[32], compressed[32], uncompressed[32], unique[32];
1238 char blkbuf[BP_SPRINTF_LEN];
1239
1240 if (ds == NULL)
1241 return;
1242
1243 ASSERT(size == sizeof (*ds));
1244 crtime = ds->ds_creation_time;
1245 zdb_nicenum(ds->ds_referenced_bytes, used);
1246 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1247 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1248 zdb_nicenum(ds->ds_unique_bytes, unique);
1249 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1250
1251 (void) printf("\t\tdir_obj = %llu\n",
1252 (u_longlong_t)ds->ds_dir_obj);
1253 (void) printf("\t\tprev_snap_obj = %llu\n",
1254 (u_longlong_t)ds->ds_prev_snap_obj);
1255 (void) printf("\t\tprev_snap_txg = %llu\n",
1256 (u_longlong_t)ds->ds_prev_snap_txg);
1257 (void) printf("\t\tnext_snap_obj = %llu\n",
1258 (u_longlong_t)ds->ds_next_snap_obj);
1259 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1260 (u_longlong_t)ds->ds_snapnames_zapobj);
1261 (void) printf("\t\tnum_children = %llu\n",
1262 (u_longlong_t)ds->ds_num_children);
1263 (void) printf("\t\tuserrefs_obj = %llu\n",
1264 (u_longlong_t)ds->ds_userrefs_obj);
1265 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1266 (void) printf("\t\tcreation_txg = %llu\n",
1267 (u_longlong_t)ds->ds_creation_txg);
1268 (void) printf("\t\tdeadlist_obj = %llu\n",
1269 (u_longlong_t)ds->ds_deadlist_obj);
1270 (void) printf("\t\tused_bytes = %s\n", used);
1271 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1272 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1273 (void) printf("\t\tunique = %s\n", unique);
1274 (void) printf("\t\tfsid_guid = %llu\n",
1275 (u_longlong_t)ds->ds_fsid_guid);
1276 (void) printf("\t\tguid = %llu\n",
1277 (u_longlong_t)ds->ds_guid);
1278 (void) printf("\t\tflags = %llx\n",
1279 (u_longlong_t)ds->ds_flags);
1280 (void) printf("\t\tnext_clones_obj = %llu\n",
1281 (u_longlong_t)ds->ds_next_clones_obj);
1282 (void) printf("\t\tprops_obj = %llu\n",
1283 (u_longlong_t)ds->ds_props_obj);
1284 (void) printf("\t\tbp = %s\n", blkbuf);
1285 }
1286
1287 /* ARGSUSED */
1288 static int
1289 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1290 {
1291 char blkbuf[BP_SPRINTF_LEN];
1292
1293 if (bp->blk_birth != 0) {
1294 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1295 (void) printf("\t%s\n", blkbuf);
1296 }
1297 return (0);
1298 }
1299
1300 static void
1301 dump_bptree(objset_t *os, uint64_t obj, char *name)
1302 {
1303 char bytes[32];
1304 bptree_phys_t *bt;
1305 dmu_buf_t *db;
1306
1307 if (dump_opt['d'] < 3)
1308 return;
1309
1310 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1311 bt = db->db_data;
1312 zdb_nicenum(bt->bt_bytes, bytes);
1313 (void) printf("\n %s: %llu datasets, %s\n",
1314 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1315 dmu_buf_rele(db, FTAG);
1316
1317 if (dump_opt['d'] < 5)
1318 return;
1319
1320 (void) printf("\n");
1321
1322 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1323 }
1324
1325 /* ARGSUSED */
1326 static int
1327 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1328 {
1329 char blkbuf[BP_SPRINTF_LEN];
1330
1331 ASSERT(bp->blk_birth != 0);
1332 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1333 (void) printf("\t%s\n", blkbuf);
1334 return (0);
1335 }
1336
1337 static void
1338 dump_bpobj(bpobj_t *bpo, char *name, int indent)
1339 {
1340 char bytes[32];
1341 char comp[32];
1342 char uncomp[32];
1343 uint64_t i;
1344
1345 if (dump_opt['d'] < 3)
1346 return;
1347
1348 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1349 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1350 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1351 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1352 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1353 "%llu subobjs, %s (%s/%s comp)\n",
1354 indent * 8, name,
1355 (u_longlong_t)bpo->bpo_object,
1356 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1357 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1358 bytes, comp, uncomp);
1359
1360 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1361 uint64_t subobj;
1362 bpobj_t subbpo;
1363 int error;
1364 VERIFY0(dmu_read(bpo->bpo_os,
1365 bpo->bpo_phys->bpo_subobjs,
1366 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1367 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1368 if (error != 0) {
1369 (void) printf("ERROR %u while trying to open "
1370 "subobj id %llu\n",
1371 error, (u_longlong_t)subobj);
1372 continue;
1373 }
1374 dump_bpobj(&subbpo, "subobj", indent + 1);
1375 }
1376 } else {
1377 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1378 indent * 8, name,
1379 (u_longlong_t)bpo->bpo_object,
1380 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1381 bytes);
1382 }
1383
1384 if (dump_opt['d'] < 5)
1385 return;
1386
1387
1388 if (indent == 0) {
1389 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1390 (void) printf("\n");
1391 }
1392 }
1393
1394 static void
1395 dump_deadlist(dsl_deadlist_t *dl)
1396 {
1397 dsl_deadlist_entry_t *dle;
1398 uint64_t unused;
1399 char bytes[32];
1400 char comp[32];
1401 char uncomp[32];
1402
1403 if (dump_opt['d'] < 3)
1404 return;
1405
1406 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1407 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1408 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1409 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1410 bytes, comp, uncomp);
1411
1412 if (dump_opt['d'] < 4)
1413 return;
1414
1415 (void) printf("\n");
1416
1417 /* force the tree to be loaded */
1418 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1419
1420 for (dle = avl_first(&dl->dl_tree); dle;
1421 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1422 if (dump_opt['d'] >= 5) {
1423 char buf[128];
1424 (void) snprintf(buf, sizeof (buf),
1425 "mintxg %llu -> obj %llu",
1426 (longlong_t)dle->dle_mintxg,
1427 (longlong_t)dle->dle_bpobj.bpo_object);
1428
1429 dump_bpobj(&dle->dle_bpobj, buf, 0);
1430 } else {
1431 (void) printf("mintxg %llu -> obj %llu\n",
1432 (longlong_t)dle->dle_mintxg,
1433 (longlong_t)dle->dle_bpobj.bpo_object);
1434
1435 }
1436 }
1437 }
1438
1439 static avl_tree_t idx_tree;
1440 static avl_tree_t domain_tree;
1441 static boolean_t fuid_table_loaded;
1442 static boolean_t sa_loaded;
1443 sa_attr_type_t *sa_attr_table;
1444
1445 static void
1446 fuid_table_destroy(void)
1447 {
1448 if (fuid_table_loaded) {
1449 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1450 fuid_table_loaded = B_FALSE;
1451 }
1452 }
1453
1454 /*
1455 * print uid or gid information.
1456 * For normal POSIX id just the id is printed in decimal format.
1457 * For CIFS files with FUID the fuid is printed in hex followed by
1458 * the domain-rid string.
1459 */
1460 static void
1461 print_idstr(uint64_t id, const char *id_type)
1462 {
1463 if (FUID_INDEX(id)) {
1464 char *domain;
1465
1466 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1467 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1468 (u_longlong_t)id, domain, (int)FUID_RID(id));
1469 } else {
1470 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1471 }
1472
1473 }
1474
1475 static void
1476 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1477 {
1478 uint32_t uid_idx, gid_idx;
1479
1480 uid_idx = FUID_INDEX(uid);
1481 gid_idx = FUID_INDEX(gid);
1482
1483 /* Load domain table, if not already loaded */
1484 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1485 uint64_t fuid_obj;
1486
1487 /* first find the fuid object. It lives in the master node */
1488 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1489 8, 1, &fuid_obj) == 0);
1490 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1491 (void) zfs_fuid_table_load(os, fuid_obj,
1492 &idx_tree, &domain_tree);
1493 fuid_table_loaded = B_TRUE;
1494 }
1495
1496 print_idstr(uid, "uid");
1497 print_idstr(gid, "gid");
1498 }
1499
1500 static void
1501 dump_znode_sa_xattr(sa_handle_t *hdl)
1502 {
1503 nvlist_t *sa_xattr;
1504 nvpair_t *elem = NULL;
1505 int sa_xattr_size = 0;
1506 int sa_xattr_entries = 0;
1507 int error;
1508 char *sa_xattr_packed;
1509
1510 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size);
1511 if (error || sa_xattr_size == 0)
1512 return;
1513
1514 sa_xattr_packed = malloc(sa_xattr_size);
1515 if (sa_xattr_packed == NULL)
1516 return;
1517
1518 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR],
1519 sa_xattr_packed, sa_xattr_size);
1520 if (error) {
1521 free(sa_xattr_packed);
1522 return;
1523 }
1524
1525 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0);
1526 if (error) {
1527 free(sa_xattr_packed);
1528 return;
1529 }
1530
1531 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL)
1532 sa_xattr_entries++;
1533
1534 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n",
1535 sa_xattr_size, sa_xattr_entries);
1536 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) {
1537 uchar_t *value;
1538 uint_t cnt, idx;
1539
1540 (void) printf("\t\t%s = ", nvpair_name(elem));
1541 nvpair_value_byte_array(elem, &value, &cnt);
1542 for (idx = 0; idx < cnt; ++idx) {
1543 if (isprint(value[idx]))
1544 (void) putchar(value[idx]);
1545 else
1546 (void) printf("\\%3.3o", value[idx]);
1547 }
1548 (void) putchar('\n');
1549 }
1550
1551 nvlist_free(sa_xattr);
1552 free(sa_xattr_packed);
1553 }
1554
1555 /*ARGSUSED*/
1556 static void
1557 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1558 {
1559 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1560 sa_handle_t *hdl;
1561 uint64_t xattr, rdev, gen;
1562 uint64_t uid, gid, mode, fsize, parent, links;
1563 uint64_t pflags;
1564 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1565 time_t z_crtime, z_atime, z_mtime, z_ctime;
1566 sa_bulk_attr_t bulk[12];
1567 int idx = 0;
1568 int error;
1569
1570 if (!sa_loaded) {
1571 uint64_t sa_attrs = 0;
1572 uint64_t version;
1573
1574 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1575 8, 1, &version) == 0);
1576 if (version >= ZPL_VERSION_SA) {
1577 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1578 8, 1, &sa_attrs) == 0);
1579 }
1580 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1581 ZPL_END, &sa_attr_table)) != 0) {
1582 (void) printf("sa_setup failed errno %d, can't "
1583 "display znode contents\n", error);
1584 return;
1585 }
1586 sa_loaded = B_TRUE;
1587 }
1588
1589 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1590 (void) printf("Failed to get handle for SA znode\n");
1591 return;
1592 }
1593
1594 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1595 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1596 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1597 &links, 8);
1598 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1599 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1600 &mode, 8);
1601 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1602 NULL, &parent, 8);
1603 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1604 &fsize, 8);
1605 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1606 acctm, 16);
1607 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1608 modtm, 16);
1609 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1610 crtm, 16);
1611 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1612 chgtm, 16);
1613 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1614 &pflags, 8);
1615
1616 if (sa_bulk_lookup(hdl, bulk, idx)) {
1617 (void) sa_handle_destroy(hdl);
1618 return;
1619 }
1620
1621 error = zfs_obj_to_path(os, object, path, sizeof (path));
1622 if (error != 0) {
1623 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1624 (u_longlong_t)object);
1625 }
1626 if (dump_opt['d'] < 3) {
1627 (void) printf("\t%s\n", path);
1628 (void) sa_handle_destroy(hdl);
1629 return;
1630 }
1631
1632 z_crtime = (time_t)crtm[0];
1633 z_atime = (time_t)acctm[0];
1634 z_mtime = (time_t)modtm[0];
1635 z_ctime = (time_t)chgtm[0];
1636
1637 (void) printf("\tpath %s\n", path);
1638 dump_uidgid(os, uid, gid);
1639 (void) printf("\tatime %s", ctime(&z_atime));
1640 (void) printf("\tmtime %s", ctime(&z_mtime));
1641 (void) printf("\tctime %s", ctime(&z_ctime));
1642 (void) printf("\tcrtime %s", ctime(&z_crtime));
1643 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1644 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1645 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1646 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1647 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1648 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1649 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1650 sizeof (uint64_t)) == 0)
1651 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1652 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1653 sizeof (uint64_t)) == 0)
1654 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1655 dump_znode_sa_xattr(hdl);
1656 sa_handle_destroy(hdl);
1657 }
1658
1659 /*ARGSUSED*/
1660 static void
1661 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1662 {
1663 }
1664
1665 /*ARGSUSED*/
1666 static void
1667 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1668 {
1669 }
1670
1671 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1672 dump_none, /* unallocated */
1673 dump_zap, /* object directory */
1674 dump_uint64, /* object array */
1675 dump_none, /* packed nvlist */
1676 dump_packed_nvlist, /* packed nvlist size */
1677 dump_none, /* bplist */
1678 dump_none, /* bplist header */
1679 dump_none, /* SPA space map header */
1680 dump_none, /* SPA space map */
1681 dump_none, /* ZIL intent log */
1682 dump_dnode, /* DMU dnode */
1683 dump_dmu_objset, /* DMU objset */
1684 dump_dsl_dir, /* DSL directory */
1685 dump_zap, /* DSL directory child map */
1686 dump_zap, /* DSL dataset snap map */
1687 dump_zap, /* DSL props */
1688 dump_dsl_dataset, /* DSL dataset */
1689 dump_znode, /* ZFS znode */
1690 dump_acl, /* ZFS V0 ACL */
1691 dump_uint8, /* ZFS plain file */
1692 dump_zpldir, /* ZFS directory */
1693 dump_zap, /* ZFS master node */
1694 dump_zap, /* ZFS delete queue */
1695 dump_uint8, /* zvol object */
1696 dump_zap, /* zvol prop */
1697 dump_uint8, /* other uint8[] */
1698 dump_uint64, /* other uint64[] */
1699 dump_zap, /* other ZAP */
1700 dump_zap, /* persistent error log */
1701 dump_uint8, /* SPA history */
1702 dump_history_offsets, /* SPA history offsets */
1703 dump_zap, /* Pool properties */
1704 dump_zap, /* DSL permissions */
1705 dump_acl, /* ZFS ACL */
1706 dump_uint8, /* ZFS SYSACL */
1707 dump_none, /* FUID nvlist */
1708 dump_packed_nvlist, /* FUID nvlist size */
1709 dump_zap, /* DSL dataset next clones */
1710 dump_zap, /* DSL scrub queue */
1711 dump_zap, /* ZFS user/group used */
1712 dump_zap, /* ZFS user/group quota */
1713 dump_zap, /* snapshot refcount tags */
1714 dump_ddt_zap, /* DDT ZAP object */
1715 dump_zap, /* DDT statistics */
1716 dump_znode, /* SA object */
1717 dump_zap, /* SA Master Node */
1718 dump_sa_attrs, /* SA attribute registration */
1719 dump_sa_layouts, /* SA attribute layouts */
1720 dump_zap, /* DSL scrub translations */
1721 dump_none, /* fake dedup BP */
1722 dump_zap, /* deadlist */
1723 dump_none, /* deadlist hdr */
1724 dump_zap, /* dsl clones */
1725 dump_none, /* bpobj subobjs */
1726 dump_unknown, /* Unknown type, must be last */
1727 };
1728
1729 static void
1730 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1731 {
1732 dmu_buf_t *db = NULL;
1733 dmu_object_info_t doi;
1734 dnode_t *dn;
1735 void *bonus = NULL;
1736 size_t bsize = 0;
1737 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1738 char bonus_size[32];
1739 char aux[50];
1740 int error;
1741
1742 if (*print_header) {
1743 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1744 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1745 "%full", "type");
1746 *print_header = 0;
1747 }
1748
1749 if (object == 0) {
1750 dn = DMU_META_DNODE(os);
1751 } else {
1752 error = dmu_bonus_hold(os, object, FTAG, &db);
1753 if (error)
1754 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1755 object, error);
1756 bonus = db->db_data;
1757 bsize = db->db_size;
1758 dn = DB_DNODE((dmu_buf_impl_t *)db);
1759 }
1760 dmu_object_info_from_dnode(dn, &doi);
1761
1762 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1763 zdb_nicenum(doi.doi_data_block_size, dblk);
1764 zdb_nicenum(doi.doi_max_offset, lsize);
1765 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1766 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1767 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1768 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1769 doi.doi_max_offset);
1770
1771 aux[0] = '\0';
1772
1773 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1774 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1775 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1776 }
1777
1778 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1779 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1780 ZDB_COMPRESS_NAME(doi.doi_compress));
1781 }
1782
1783 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1784 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1785 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1786
1787 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1788 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1789 "", "", "", "", "", bonus_size, "bonus",
1790 ZDB_OT_NAME(doi.doi_bonus_type));
1791 }
1792
1793 if (verbosity >= 4) {
1794 (void) printf("\tdnode flags: %s%s%s\n",
1795 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1796 "USED_BYTES " : "",
1797 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1798 "USERUSED_ACCOUNTED " : "",
1799 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1800 "SPILL_BLKPTR" : "");
1801 (void) printf("\tdnode maxblkid: %llu\n",
1802 (longlong_t)dn->dn_phys->dn_maxblkid);
1803
1804 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1805 bonus, bsize);
1806 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1807 *print_header = 1;
1808 }
1809
1810 if (verbosity >= 5)
1811 dump_indirect(dn);
1812
1813 if (verbosity >= 5) {
1814 /*
1815 * Report the list of segments that comprise the object.
1816 */
1817 uint64_t start = 0;
1818 uint64_t end;
1819 uint64_t blkfill = 1;
1820 int minlvl = 1;
1821
1822 if (dn->dn_type == DMU_OT_DNODE) {
1823 minlvl = 0;
1824 blkfill = DNODES_PER_BLOCK;
1825 }
1826
1827 for (;;) {
1828 char segsize[32];
1829 error = dnode_next_offset(dn,
1830 0, &start, minlvl, blkfill, 0);
1831 if (error)
1832 break;
1833 end = start;
1834 error = dnode_next_offset(dn,
1835 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1836 zdb_nicenum(end - start, segsize);
1837 (void) printf("\t\tsegment [%016llx, %016llx)"
1838 " size %5s\n", (u_longlong_t)start,
1839 (u_longlong_t)end, segsize);
1840 if (error)
1841 break;
1842 start = end;
1843 }
1844 }
1845
1846 if (db != NULL)
1847 dmu_buf_rele(db, FTAG);
1848 }
1849
1850 static char *objset_types[DMU_OST_NUMTYPES] = {
1851 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1852
1853 static void
1854 dump_dir(objset_t *os)
1855 {
1856 dmu_objset_stats_t dds;
1857 uint64_t object, object_count;
1858 uint64_t refdbytes, usedobjs, scratch;
1859 char numbuf[32];
1860 char blkbuf[BP_SPRINTF_LEN + 20];
1861 char osname[MAXNAMELEN];
1862 char *type = "UNKNOWN";
1863 int verbosity = dump_opt['d'];
1864 int print_header = 1;
1865 int i, error;
1866
1867 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1868 dmu_objset_fast_stat(os, &dds);
1869 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1870
1871 if (dds.dds_type < DMU_OST_NUMTYPES)
1872 type = objset_types[dds.dds_type];
1873
1874 if (dds.dds_type == DMU_OST_META) {
1875 dds.dds_creation_txg = TXG_INITIAL;
1876 usedobjs = BP_GET_FILL(os->os_rootbp);
1877 refdbytes = os->os_spa->spa_dsl_pool->
1878 dp_mos_dir->dd_phys->dd_used_bytes;
1879 } else {
1880 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1881 }
1882
1883 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
1884
1885 zdb_nicenum(refdbytes, numbuf);
1886
1887 if (verbosity >= 4) {
1888 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
1889 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
1890 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
1891 } else {
1892 blkbuf[0] = '\0';
1893 }
1894
1895 dmu_objset_name(os, osname);
1896
1897 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1898 "%s, %llu objects%s\n",
1899 osname, type, (u_longlong_t)dmu_objset_id(os),
1900 (u_longlong_t)dds.dds_creation_txg,
1901 numbuf, (u_longlong_t)usedobjs, blkbuf);
1902
1903 if (zopt_objects != 0) {
1904 for (i = 0; i < zopt_objects; i++)
1905 dump_object(os, zopt_object[i], verbosity,
1906 &print_header);
1907 (void) printf("\n");
1908 return;
1909 }
1910
1911 if (dump_opt['i'] != 0 || verbosity >= 2)
1912 dump_intent_log(dmu_objset_zil(os));
1913
1914 if (dmu_objset_ds(os) != NULL)
1915 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1916
1917 if (verbosity < 2)
1918 return;
1919
1920 if (BP_IS_HOLE(os->os_rootbp))
1921 return;
1922
1923 dump_object(os, 0, verbosity, &print_header);
1924 object_count = 0;
1925 if (DMU_USERUSED_DNODE(os) != NULL &&
1926 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1927 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1928 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1929 }
1930
1931 object = 0;
1932 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1933 dump_object(os, object, verbosity, &print_header);
1934 object_count++;
1935 }
1936
1937 ASSERT3U(object_count, ==, usedobjs);
1938
1939 (void) printf("\n");
1940
1941 if (error != ESRCH) {
1942 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1943 abort();
1944 }
1945 }
1946
1947 static void
1948 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
1949 {
1950 time_t timestamp = ub->ub_timestamp;
1951
1952 (void) printf("%s", header ? header : "");
1953 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1954 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1955 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1956 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1957 (void) printf("\ttimestamp = %llu UTC = %s",
1958 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
1959 if (dump_opt['u'] >= 3) {
1960 char blkbuf[BP_SPRINTF_LEN];
1961 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
1962 (void) printf("\trootbp = %s\n", blkbuf);
1963 }
1964 (void) printf("%s", footer ? footer : "");
1965 }
1966
1967 static void
1968 dump_config(spa_t *spa)
1969 {
1970 dmu_buf_t *db;
1971 size_t nvsize = 0;
1972 int error = 0;
1973
1974
1975 error = dmu_bonus_hold(spa->spa_meta_objset,
1976 spa->spa_config_object, FTAG, &db);
1977
1978 if (error == 0) {
1979 nvsize = *(uint64_t *)db->db_data;
1980 dmu_buf_rele(db, FTAG);
1981
1982 (void) printf("\nMOS Configuration:\n");
1983 dump_packed_nvlist(spa->spa_meta_objset,
1984 spa->spa_config_object, (void *)&nvsize, 1);
1985 } else {
1986 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
1987 (u_longlong_t)spa->spa_config_object, error);
1988 }
1989 }
1990
1991 static void
1992 dump_cachefile(const char *cachefile)
1993 {
1994 int fd;
1995 struct stat64 statbuf;
1996 char *buf;
1997 nvlist_t *config;
1998
1999 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2000 (void) printf("cannot open '%s': %s\n", cachefile,
2001 strerror(errno));
2002 exit(1);
2003 }
2004
2005 if (fstat64(fd, &statbuf) != 0) {
2006 (void) printf("failed to stat '%s': %s\n", cachefile,
2007 strerror(errno));
2008 exit(1);
2009 }
2010
2011 if ((buf = malloc(statbuf.st_size)) == NULL) {
2012 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2013 (u_longlong_t)statbuf.st_size);
2014 exit(1);
2015 }
2016
2017 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2018 (void) fprintf(stderr, "failed to read %llu bytes\n",
2019 (u_longlong_t)statbuf.st_size);
2020 exit(1);
2021 }
2022
2023 (void) close(fd);
2024
2025 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2026 (void) fprintf(stderr, "failed to unpack nvlist\n");
2027 exit(1);
2028 }
2029
2030 free(buf);
2031
2032 dump_nvlist(config, 0);
2033
2034 nvlist_free(config);
2035 }
2036
2037 #define ZDB_MAX_UB_HEADER_SIZE 32
2038
2039 static void
2040 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2041 {
2042 vdev_t vd;
2043 vdev_t *vdp = &vd;
2044 char header[ZDB_MAX_UB_HEADER_SIZE];
2045 int i;
2046
2047 vd.vdev_ashift = ashift;
2048 vdp->vdev_top = vdp;
2049
2050 for (i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2051 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2052 uberblock_t *ub = (void *)((char *)lbl + uoff);
2053
2054 if (uberblock_verify(ub))
2055 continue;
2056 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2057 "Uberblock[%d]\n", i);
2058 dump_uberblock(ub, header, "");
2059 }
2060 }
2061
2062 static void
2063 dump_label(const char *dev)
2064 {
2065 int fd;
2066 vdev_label_t label;
2067 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
2068 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2069 struct stat64 statbuf;
2070 uint64_t psize, ashift;
2071 int len = strlen(dev) + 1;
2072 int l;
2073
2074 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
2075 len++;
2076 path = malloc(len);
2077 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
2078 } else {
2079 path = strdup(dev);
2080 }
2081
2082 if ((fd = open64(path, O_RDONLY)) < 0) {
2083 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2084 free(path);
2085 exit(1);
2086 }
2087
2088 if (fstat64_blk(fd, &statbuf) != 0) {
2089 (void) printf("failed to stat '%s': %s\n", path,
2090 strerror(errno));
2091 free(path);
2092 (void) close(fd);
2093 exit(1);
2094 }
2095
2096 psize = statbuf.st_size;
2097 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2098
2099 for (l = 0; l < VDEV_LABELS; l++) {
2100 nvlist_t *config = NULL;
2101
2102 (void) printf("--------------------------------------------\n");
2103 (void) printf("LABEL %d\n", l);
2104 (void) printf("--------------------------------------------\n");
2105
2106 if (pread64(fd, &label, sizeof (label),
2107 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2108 (void) printf("failed to read label %d\n", l);
2109 continue;
2110 }
2111
2112 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2113 (void) printf("failed to unpack label %d\n", l);
2114 ashift = SPA_MINBLOCKSHIFT;
2115 } else {
2116 nvlist_t *vdev_tree = NULL;
2117
2118 dump_nvlist(config, 4);
2119 if ((nvlist_lookup_nvlist(config,
2120 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2121 (nvlist_lookup_uint64(vdev_tree,
2122 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2123 ashift = SPA_MINBLOCKSHIFT;
2124 nvlist_free(config);
2125 }
2126 if (dump_opt['u'])
2127 dump_label_uberblocks(&label, ashift);
2128 }
2129
2130 free(path);
2131 (void) close(fd);
2132 }
2133
2134 /*ARGSUSED*/
2135 static int
2136 dump_one_dir(const char *dsname, void *arg)
2137 {
2138 int error;
2139 objset_t *os;
2140
2141 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
2142 if (error) {
2143 (void) printf("Could not open %s, error %d\n", dsname, error);
2144 return (0);
2145 }
2146 dump_dir(os);
2147 dmu_objset_disown(os, FTAG);
2148 fuid_table_destroy();
2149 sa_loaded = B_FALSE;
2150 return (0);
2151 }
2152
2153 /*
2154 * Block statistics.
2155 */
2156 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1)
2157 typedef struct zdb_blkstats {
2158 uint64_t zb_asize;
2159 uint64_t zb_lsize;
2160 uint64_t zb_psize;
2161 uint64_t zb_count;
2162 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2163 } zdb_blkstats_t;
2164
2165 /*
2166 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2167 */
2168 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2169 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2170 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2171 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2172
2173 static char *zdb_ot_extname[] = {
2174 "deferred free",
2175 "dedup ditto",
2176 "other",
2177 "Total",
2178 };
2179
2180 #define ZB_TOTAL DN_MAX_LEVELS
2181
2182 typedef struct zdb_cb {
2183 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2184 uint64_t zcb_dedup_asize;
2185 uint64_t zcb_dedup_blocks;
2186 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2187 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2188 [BPE_PAYLOAD_SIZE];
2189 uint64_t zcb_start;
2190 uint64_t zcb_lastprint;
2191 uint64_t zcb_totalasize;
2192 uint64_t zcb_errors[256];
2193 int zcb_readfails;
2194 int zcb_haderrors;
2195 spa_t *zcb_spa;
2196 } zdb_cb_t;
2197
2198 static void
2199 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2200 dmu_object_type_t type)
2201 {
2202 uint64_t refcnt = 0;
2203 int i;
2204
2205 ASSERT(type < ZDB_OT_TOTAL);
2206
2207 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2208 return;
2209
2210 for (i = 0; i < 4; i++) {
2211 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2212 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2213 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2214
2215 zb->zb_asize += BP_GET_ASIZE(bp);
2216 zb->zb_lsize += BP_GET_LSIZE(bp);
2217 zb->zb_psize += BP_GET_PSIZE(bp);
2218 zb->zb_count++;
2219 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++;
2220 }
2221
2222 if (BP_IS_EMBEDDED(bp)) {
2223 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2224 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2225 [BPE_GET_PSIZE(bp)]++;
2226 return;
2227 }
2228
2229 if (dump_opt['L'])
2230 return;
2231
2232 if (BP_GET_DEDUP(bp)) {
2233 ddt_t *ddt;
2234 ddt_entry_t *dde;
2235
2236 ddt = ddt_select(zcb->zcb_spa, bp);
2237 ddt_enter(ddt);
2238 dde = ddt_lookup(ddt, bp, B_FALSE);
2239
2240 if (dde == NULL) {
2241 refcnt = 0;
2242 } else {
2243 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2244 ddt_phys_decref(ddp);
2245 refcnt = ddp->ddp_refcnt;
2246 if (ddt_phys_total_refcnt(dde) == 0)
2247 ddt_remove(ddt, dde);
2248 }
2249 ddt_exit(ddt);
2250 }
2251
2252 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2253 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2254 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2255 }
2256
2257 static void
2258 zdb_blkptr_done(zio_t *zio)
2259 {
2260 spa_t *spa = zio->io_spa;
2261 blkptr_t *bp = zio->io_bp;
2262 int ioerr = zio->io_error;
2263 zdb_cb_t *zcb = zio->io_private;
2264 zbookmark_t *zb = &zio->io_bookmark;
2265
2266 zio_data_buf_free(zio->io_data, zio->io_size);
2267
2268 mutex_enter(&spa->spa_scrub_lock);
2269 spa->spa_scrub_inflight--;
2270 cv_broadcast(&spa->spa_scrub_io_cv);
2271
2272 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2273 char blkbuf[BP_SPRINTF_LEN];
2274
2275 zcb->zcb_haderrors = 1;
2276 zcb->zcb_errors[ioerr]++;
2277
2278 if (dump_opt['b'] >= 2)
2279 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2280 else
2281 blkbuf[0] = '\0';
2282
2283 (void) printf("zdb_blkptr_cb: "
2284 "Got error %d reading "
2285 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2286 ioerr,
2287 (u_longlong_t)zb->zb_objset,
2288 (u_longlong_t)zb->zb_object,
2289 (u_longlong_t)zb->zb_level,
2290 (u_longlong_t)zb->zb_blkid,
2291 blkbuf);
2292 }
2293 mutex_exit(&spa->spa_scrub_lock);
2294 }
2295
2296 static int
2297 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2298 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2299 {
2300 zdb_cb_t *zcb = arg;
2301 dmu_object_type_t type;
2302 boolean_t is_metadata;
2303
2304 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2305 char blkbuf[BP_SPRINTF_LEN];
2306 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2307 (void) printf("objset %llu object %llu "
2308 "level %lld offset 0x%llx %s\n",
2309 (u_longlong_t)zb->zb_objset,
2310 (u_longlong_t)zb->zb_object,
2311 (longlong_t)zb->zb_level,
2312 (u_longlong_t)blkid2offset(dnp, bp, zb),
2313 blkbuf);
2314 }
2315
2316 if (BP_IS_HOLE(bp))
2317 return (0);
2318
2319 type = BP_GET_TYPE(bp);
2320
2321 zdb_count_block(zcb, zilog, bp,
2322 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2323
2324 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2325
2326 if (!BP_IS_EMBEDDED(bp) &&
2327 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2328 size_t size = BP_GET_PSIZE(bp);
2329 void *data = zio_data_buf_alloc(size);
2330 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2331
2332 /* If it's an intent log block, failure is expected. */
2333 if (zb->zb_level == ZB_ZIL_LEVEL)
2334 flags |= ZIO_FLAG_SPECULATIVE;
2335
2336 mutex_enter(&spa->spa_scrub_lock);
2337 while (spa->spa_scrub_inflight > max_inflight)
2338 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2339 spa->spa_scrub_inflight++;
2340 mutex_exit(&spa->spa_scrub_lock);
2341
2342 zio_nowait(zio_read(NULL, spa, bp, data, size,
2343 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2344 }
2345
2346 zcb->zcb_readfails = 0;
2347
2348 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) &&
2349 gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2350 uint64_t now = gethrtime();
2351 char buf[10];
2352 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2353 int kb_per_sec =
2354 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2355 int sec_remaining =
2356 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2357
2358 zfs_nicenum(bytes, buf, sizeof (buf));
2359 (void) fprintf(stderr,
2360 "\r%5s completed (%4dMB/s) "
2361 "estimated time remaining: %uhr %02umin %02usec ",
2362 buf, kb_per_sec / 1024,
2363 sec_remaining / 60 / 60,
2364 sec_remaining / 60 % 60,
2365 sec_remaining % 60);
2366
2367 zcb->zcb_lastprint = now;
2368 }
2369
2370 return (0);
2371 }
2372
2373 static void
2374 zdb_leak(void *arg, uint64_t start, uint64_t size)
2375 {
2376 vdev_t *vd = arg;
2377
2378 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2379 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2380 }
2381
2382 static metaslab_ops_t zdb_metaslab_ops = {
2383 NULL, /* alloc */
2384 NULL /* fragmented */
2385 };
2386
2387 static void
2388 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2389 {
2390 ddt_bookmark_t ddb = { 0 };
2391 ddt_entry_t dde;
2392 int error;
2393 int p;
2394
2395 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2396 blkptr_t blk;
2397 ddt_phys_t *ddp = dde.dde_phys;
2398
2399 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2400 return;
2401
2402 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2403
2404 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2405 if (ddp->ddp_phys_birth == 0)
2406 continue;
2407 ddt_bp_create(ddb.ddb_checksum,
2408 &dde.dde_key, ddp, &blk);
2409 if (p == DDT_PHYS_DITTO) {
2410 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2411 } else {
2412 zcb->zcb_dedup_asize +=
2413 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2414 zcb->zcb_dedup_blocks++;
2415 }
2416 }
2417 if (!dump_opt['L']) {
2418 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2419 ddt_enter(ddt);
2420 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2421 ddt_exit(ddt);
2422 }
2423 }
2424
2425 ASSERT(error == ENOENT);
2426 }
2427
2428 static void
2429 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2430 {
2431 zcb->zcb_spa = spa;
2432 int c, m;
2433
2434 if (!dump_opt['L']) {
2435 vdev_t *rvd = spa->spa_root_vdev;
2436 for (c = 0; c < rvd->vdev_children; c++) {
2437 vdev_t *vd = rvd->vdev_child[c];
2438 for (m = 0; m < vd->vdev_ms_count; m++) {
2439 metaslab_t *msp = vd->vdev_ms[m];
2440 mutex_enter(&msp->ms_lock);
2441 metaslab_unload(msp);
2442
2443 /*
2444 * For leak detection, we overload the metaslab
2445 * ms_tree to contain allocated segments
2446 * instead of free segments. As a result,
2447 * we can't use the normal metaslab_load/unload
2448 * interfaces.
2449 */
2450 if (msp->ms_sm != NULL) {
2451 msp->ms_ops = &zdb_metaslab_ops;
2452 VERIFY0(space_map_load(msp->ms_sm,
2453 msp->ms_tree, SM_ALLOC));
2454 msp->ms_loaded = B_TRUE;
2455 }
2456 mutex_exit(&msp->ms_lock);
2457 }
2458 }
2459 }
2460
2461 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2462
2463 zdb_ddt_leak_init(spa, zcb);
2464
2465 spa_config_exit(spa, SCL_CONFIG, FTAG);
2466 }
2467
2468 static void
2469 zdb_leak_fini(spa_t *spa)
2470 {
2471 int c, m;
2472
2473 if (!dump_opt['L']) {
2474 vdev_t *rvd = spa->spa_root_vdev;
2475 for (c = 0; c < rvd->vdev_children; c++) {
2476 vdev_t *vd = rvd->vdev_child[c];
2477 for (m = 0; m < vd->vdev_ms_count; m++) {
2478 metaslab_t *msp = vd->vdev_ms[m];
2479 mutex_enter(&msp->ms_lock);
2480
2481 /*
2482 * The ms_tree has been overloaded to
2483 * contain allocated segments. Now that we
2484 * finished traversing all blocks, any
2485 * block that remains in the ms_tree
2486 * represents an allocated block that we
2487 * did not claim during the traversal.
2488 * Claimed blocks would have been removed
2489 * from the ms_tree.
2490 */
2491 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2492 msp->ms_loaded = B_FALSE;
2493
2494 mutex_exit(&msp->ms_lock);
2495 }
2496 }
2497 }
2498 }
2499
2500 /* ARGSUSED */
2501 static int
2502 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2503 {
2504 zdb_cb_t *zcb = arg;
2505
2506 if (dump_opt['b'] >= 5) {
2507 char blkbuf[BP_SPRINTF_LEN];
2508 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2509 (void) printf("[%s] %s\n",
2510 "deferred free", blkbuf);
2511 }
2512 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2513 return (0);
2514 }
2515
2516 static int
2517 dump_block_stats(spa_t *spa)
2518 {
2519 zdb_cb_t zcb;
2520 zdb_blkstats_t *zb, *tzb;
2521 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2522 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2523 boolean_t leaks = B_FALSE;
2524 int e;
2525 bp_embedded_type_t i;
2526
2527 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2528 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2529 (dump_opt['c'] == 1) ? "metadata " : "",
2530 dump_opt['c'] ? "checksums " : "",
2531 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2532 !dump_opt['L'] ? "nothing leaked " : "");
2533
2534 /*
2535 * Load all space maps as SM_ALLOC maps, then traverse the pool
2536 * claiming each block we discover. If the pool is perfectly
2537 * consistent, the space maps will be empty when we're done.
2538 * Anything left over is a leak; any block we can't claim (because
2539 * it's not part of any space map) is a double allocation,
2540 * reference to a freed block, or an unclaimed log block.
2541 */
2542 bzero(&zcb, sizeof (zdb_cb_t));
2543 zdb_leak_init(spa, &zcb);
2544
2545 /*
2546 * If there's a deferred-free bplist, process that first.
2547 */
2548 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2549 count_block_cb, &zcb, NULL);
2550 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2551 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2552 count_block_cb, &zcb, NULL);
2553 }
2554 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2555 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2556 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2557 &zcb, NULL));
2558 }
2559
2560 if (dump_opt['c'] > 1)
2561 flags |= TRAVERSE_PREFETCH_DATA;
2562
2563 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2564 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2565 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2566
2567 /*
2568 * If we've traversed the data blocks then we need to wait for those
2569 * I/Os to complete. We leverage "The Godfather" zio to wait on
2570 * all async I/Os to complete.
2571 */
2572 if (dump_opt['c']) {
2573 (void) zio_wait(spa->spa_async_zio_root);
2574 spa->spa_async_zio_root = zio_root(spa, NULL, NULL,
2575 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2576 ZIO_FLAG_GODFATHER);
2577 }
2578
2579 if (zcb.zcb_haderrors) {
2580 (void) printf("\nError counts:\n\n");
2581 (void) printf("\t%5s %s\n", "errno", "count");
2582 for (e = 0; e < 256; e++) {
2583 if (zcb.zcb_errors[e] != 0) {
2584 (void) printf("\t%5d %llu\n",
2585 e, (u_longlong_t)zcb.zcb_errors[e]);
2586 }
2587 }
2588 }
2589
2590 /*
2591 * Report any leaked segments.
2592 */
2593 zdb_leak_fini(spa);
2594
2595 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2596
2597 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2598 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2599
2600 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2601 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2602
2603 if (total_found == total_alloc) {
2604 if (!dump_opt['L'])
2605 (void) printf("\n\tNo leaks (block sum matches space"
2606 " maps exactly)\n");
2607 } else {
2608 (void) printf("block traversal size %llu != alloc %llu "
2609 "(%s %lld)\n",
2610 (u_longlong_t)total_found,
2611 (u_longlong_t)total_alloc,
2612 (dump_opt['L']) ? "unreachable" : "leaked",
2613 (longlong_t)(total_alloc - total_found));
2614 leaks = B_TRUE;
2615 }
2616
2617 if (tzb->zb_count == 0)
2618 return (2);
2619
2620 (void) printf("\n");
2621 (void) printf("\tbp count: %10llu\n",
2622 (u_longlong_t)tzb->zb_count);
2623 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2624 (u_longlong_t)tzb->zb_lsize,
2625 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2626 (void) printf("\tbp physical: %10llu avg:"
2627 " %6llu compression: %6.2f\n",
2628 (u_longlong_t)tzb->zb_psize,
2629 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2630 (double)tzb->zb_lsize / tzb->zb_psize);
2631 (void) printf("\tbp allocated: %10llu avg:"
2632 " %6llu compression: %6.2f\n",
2633 (u_longlong_t)tzb->zb_asize,
2634 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2635 (double)tzb->zb_lsize / tzb->zb_asize);
2636 (void) printf("\tbp deduped: %10llu ref>1:"
2637 " %6llu deduplication: %6.2f\n",
2638 (u_longlong_t)zcb.zcb_dedup_asize,
2639 (u_longlong_t)zcb.zcb_dedup_blocks,
2640 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2641 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2642 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2643
2644 for (i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2645 if (zcb.zcb_embedded_blocks[i] == 0)
2646 continue;
2647 (void) printf("\n");
2648 (void) printf("\tadditional, non-pointer bps of type %u: "
2649 "%10llu\n",
2650 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2651
2652 if (dump_opt['b'] >= 3) {
2653 (void) printf("\t number of (compressed) bytes: "
2654 "number of bps\n");
2655 dump_histogram(zcb.zcb_embedded_histogram[i],
2656 sizeof (zcb.zcb_embedded_histogram[i]) /
2657 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2658 }
2659 }
2660
2661 if (dump_opt['b'] >= 2) {
2662 int l, t, level;
2663 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2664 "\t avg\t comp\t%%Total\tType\n");
2665
2666 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2667 char csize[32], lsize[32], psize[32], asize[32];
2668 char avg[32];
2669 char *typename;
2670
2671 if (t < DMU_OT_NUMTYPES)
2672 typename = dmu_ot[t].ot_name;
2673 else
2674 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2675
2676 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2677 (void) printf("%6s\t%5s\t%5s\t%5s"
2678 "\t%5s\t%5s\t%6s\t%s\n",
2679 "-",
2680 "-",
2681 "-",
2682 "-",
2683 "-",
2684 "-",
2685 "-",
2686 typename);
2687 continue;
2688 }
2689
2690 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2691 level = (l == -1 ? ZB_TOTAL : l);
2692 zb = &zcb.zcb_type[level][t];
2693
2694 if (zb->zb_asize == 0)
2695 continue;
2696
2697 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2698 continue;
2699
2700 if (level == 0 && zb->zb_asize ==
2701 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2702 continue;
2703
2704 zdb_nicenum(zb->zb_count, csize);
2705 zdb_nicenum(zb->zb_lsize, lsize);
2706 zdb_nicenum(zb->zb_psize, psize);
2707 zdb_nicenum(zb->zb_asize, asize);
2708 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2709
2710 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2711 "\t%5.2f\t%6.2f\t",
2712 csize, lsize, psize, asize, avg,
2713 (double)zb->zb_lsize / zb->zb_psize,
2714 100.0 * zb->zb_asize / tzb->zb_asize);
2715
2716 if (level == ZB_TOTAL)
2717 (void) printf("%s\n", typename);
2718 else
2719 (void) printf(" L%d %s\n",
2720 level, typename);
2721
2722 if (dump_opt['b'] >= 4) {
2723 (void) printf("psize "
2724 "(in 512-byte sectors): "
2725 "number of blocks\n");
2726 dump_histogram(zb->zb_psize_histogram,
2727 PSIZE_HISTO_SIZE, 0);
2728 }
2729 }
2730 }
2731 }
2732
2733 (void) printf("\n");
2734
2735 if (leaks)
2736 return (2);
2737
2738 if (zcb.zcb_haderrors)
2739 return (3);
2740
2741 return (0);
2742 }
2743
2744 typedef struct zdb_ddt_entry {
2745 ddt_key_t zdde_key;
2746 uint64_t zdde_ref_blocks;
2747 uint64_t zdde_ref_lsize;
2748 uint64_t zdde_ref_psize;
2749 uint64_t zdde_ref_dsize;
2750 avl_node_t zdde_node;
2751 } zdb_ddt_entry_t;
2752
2753 /* ARGSUSED */
2754 static int
2755 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2756 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2757 {
2758 avl_tree_t *t = arg;
2759 avl_index_t where;
2760 zdb_ddt_entry_t *zdde, zdde_search;
2761
2762 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
2763 return (0);
2764
2765 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2766 (void) printf("traversing objset %llu, %llu objects, "
2767 "%lu blocks so far\n",
2768 (u_longlong_t)zb->zb_objset,
2769 (u_longlong_t)BP_GET_FILL(bp),
2770 avl_numnodes(t));
2771 }
2772
2773 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2774 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2775 return (0);
2776
2777 ddt_key_fill(&zdde_search.zdde_key, bp);
2778
2779 zdde = avl_find(t, &zdde_search, &where);
2780
2781 if (zdde == NULL) {
2782 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2783 zdde->zdde_key = zdde_search.zdde_key;
2784 avl_insert(t, zdde, where);
2785 }
2786
2787 zdde->zdde_ref_blocks += 1;
2788 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2789 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2790 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2791
2792 return (0);
2793 }
2794
2795 static void
2796 dump_simulated_ddt(spa_t *spa)
2797 {
2798 avl_tree_t t;
2799 void *cookie = NULL;
2800 zdb_ddt_entry_t *zdde;
2801 ddt_histogram_t ddh_total;
2802 ddt_stat_t dds_total;
2803
2804 bzero(&ddh_total, sizeof (ddt_histogram_t));
2805 bzero(&dds_total, sizeof (ddt_stat_t));
2806
2807 avl_create(&t, ddt_entry_compare,
2808 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2809
2810 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2811
2812 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2813 zdb_ddt_add_cb, &t);
2814
2815 spa_config_exit(spa, SCL_CONFIG, FTAG);
2816
2817 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2818 ddt_stat_t dds;
2819 uint64_t refcnt = zdde->zdde_ref_blocks;
2820 ASSERT(refcnt != 0);
2821
2822 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2823 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2824 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2825 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2826
2827 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2828 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2829 dds.dds_ref_psize = zdde->zdde_ref_psize;
2830 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2831
2832 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
2833 &dds, 0);
2834
2835 umem_free(zdde, sizeof (*zdde));
2836 }
2837
2838 avl_destroy(&t);
2839
2840 ddt_histogram_stat(&dds_total, &ddh_total);
2841
2842 (void) printf("Simulated DDT histogram:\n");
2843
2844 zpool_dump_ddt(&dds_total, &ddh_total);
2845
2846 dump_dedup_ratio(&dds_total);
2847 }
2848
2849 static void
2850 dump_zpool(spa_t *spa)
2851 {
2852 dsl_pool_t *dp = spa_get_dsl(spa);
2853 int rc = 0;
2854
2855 if (dump_opt['S']) {
2856 dump_simulated_ddt(spa);
2857 return;
2858 }
2859
2860 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2861 (void) printf("\nCached configuration:\n");
2862 dump_nvlist(spa->spa_config, 8);
2863 }
2864
2865 if (dump_opt['C'])
2866 dump_config(spa);
2867
2868 if (dump_opt['u'])
2869 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2870
2871 if (dump_opt['D'])
2872 dump_all_ddts(spa);
2873
2874 if (dump_opt['d'] > 2 || dump_opt['m'])
2875 dump_metaslabs(spa);
2876
2877 if (dump_opt['d'] || dump_opt['i']) {
2878 dump_dir(dp->dp_meta_objset);
2879 if (dump_opt['d'] >= 3) {
2880 dump_bpobj(&spa->spa_deferred_bpobj,
2881 "Deferred frees", 0);
2882 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2883 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2884 "Pool snapshot frees", 0);
2885 }
2886
2887 if (spa_feature_is_active(spa,
2888 SPA_FEATURE_ASYNC_DESTROY)) {
2889 dump_bptree(spa->spa_meta_objset,
2890 spa->spa_dsl_pool->dp_bptree_obj,
2891 "Pool dataset frees");
2892 }
2893 dump_dtl(spa->spa_root_vdev, 0);
2894 }
2895 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
2896 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
2897 }
2898 if (dump_opt['b'] || dump_opt['c'])
2899 rc = dump_block_stats(spa);
2900
2901 if (rc == 0)
2902 rc = verify_spacemap_refcounts(spa);
2903
2904 if (dump_opt['s'])
2905 show_pool_stats(spa);
2906
2907 if (dump_opt['h'])
2908 dump_history(spa);
2909
2910 if (rc != 0)
2911 exit(rc);
2912 }
2913
2914 #define ZDB_FLAG_CHECKSUM 0x0001
2915 #define ZDB_FLAG_DECOMPRESS 0x0002
2916 #define ZDB_FLAG_BSWAP 0x0004
2917 #define ZDB_FLAG_GBH 0x0008
2918 #define ZDB_FLAG_INDIRECT 0x0010
2919 #define ZDB_FLAG_PHYS 0x0020
2920 #define ZDB_FLAG_RAW 0x0040
2921 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
2922
2923 int flagbits[256];
2924
2925 static void
2926 zdb_print_blkptr(blkptr_t *bp, int flags)
2927 {
2928 char blkbuf[BP_SPRINTF_LEN];
2929
2930 if (flags & ZDB_FLAG_BSWAP)
2931 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
2932
2933 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2934 (void) printf("%s\n", blkbuf);
2935 }
2936
2937 static void
2938 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
2939 {
2940 int i;
2941
2942 for (i = 0; i < nbps; i++)
2943 zdb_print_blkptr(&bp[i], flags);
2944 }
2945
2946 static void
2947 zdb_dump_gbh(void *buf, int flags)
2948 {
2949 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
2950 }
2951
2952 static void
2953 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
2954 {
2955 if (flags & ZDB_FLAG_BSWAP)
2956 byteswap_uint64_array(buf, size);
2957 VERIFY(write(fileno(stdout), buf, size) == size);
2958 }
2959
2960 static void
2961 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
2962 {
2963 uint64_t *d = (uint64_t *)buf;
2964 int nwords = size / sizeof (uint64_t);
2965 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
2966 int i, j;
2967 char *hdr, *c;
2968
2969
2970 if (do_bswap)
2971 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
2972 else
2973 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
2974
2975 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
2976
2977 for (i = 0; i < nwords; i += 2) {
2978 (void) printf("%06llx: %016llx %016llx ",
2979 (u_longlong_t)(i * sizeof (uint64_t)),
2980 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
2981 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
2982
2983 c = (char *)&d[i];
2984 for (j = 0; j < 2 * sizeof (uint64_t); j++)
2985 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
2986 (void) printf("\n");
2987 }
2988 }
2989
2990 /*
2991 * There are two acceptable formats:
2992 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
2993 * child[.child]* - For example: 0.1.1
2994 *
2995 * The second form can be used to specify arbitrary vdevs anywhere
2996 * in the heirarchy. For example, in a pool with a mirror of
2997 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
2998 */
2999 static vdev_t *
3000 zdb_vdev_lookup(vdev_t *vdev, char *path)
3001 {
3002 char *s, *p, *q;
3003 int i;
3004
3005 if (vdev == NULL)
3006 return (NULL);
3007
3008 /* First, assume the x.x.x.x format */
3009 i = (int)strtoul(path, &s, 10);
3010 if (s == path || (s && *s != '.' && *s != '\0'))
3011 goto name;
3012 if (i < 0 || i >= vdev->vdev_children)
3013 return (NULL);
3014
3015 vdev = vdev->vdev_child[i];
3016 if (*s == '\0')
3017 return (vdev);
3018 return (zdb_vdev_lookup(vdev, s+1));
3019
3020 name:
3021 for (i = 0; i < vdev->vdev_children; i++) {
3022 vdev_t *vc = vdev->vdev_child[i];
3023
3024 if (vc->vdev_path == NULL) {
3025 vc = zdb_vdev_lookup(vc, path);
3026 if (vc == NULL)
3027 continue;
3028 else
3029 return (vc);
3030 }
3031
3032 p = strrchr(vc->vdev_path, '/');
3033 p = p ? p + 1 : vc->vdev_path;
3034 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3035
3036 if (strcmp(vc->vdev_path, path) == 0)
3037 return (vc);
3038 if (strcmp(p, path) == 0)
3039 return (vc);
3040 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3041 return (vc);
3042 }
3043
3044 return (NULL);
3045 }
3046
3047 /*
3048 * Read a block from a pool and print it out. The syntax of the
3049 * block descriptor is:
3050 *
3051 * pool:vdev_specifier:offset:size[:flags]
3052 *
3053 * pool - The name of the pool you wish to read from
3054 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3055 * offset - offset, in hex, in bytes
3056 * size - Amount of data to read, in hex, in bytes
3057 * flags - A string of characters specifying options
3058 * b: Decode a blkptr at given offset within block
3059 * *c: Calculate and display checksums
3060 * d: Decompress data before dumping
3061 * e: Byteswap data before dumping
3062 * g: Display data as a gang block header
3063 * i: Display as an indirect block
3064 * p: Do I/O to physical offset
3065 * r: Dump raw data to stdout
3066 *
3067 * * = not yet implemented
3068 */
3069 static void
3070 zdb_read_block(char *thing, spa_t *spa)
3071 {
3072 blkptr_t blk, *bp = &blk;
3073 dva_t *dva = bp->blk_dva;
3074 int flags = 0;
3075 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3076 zio_t *zio;
3077 vdev_t *vd;
3078 void *pbuf, *lbuf, *buf;
3079 char *s, *p, *dup, *vdev, *flagstr;
3080 int i, error;
3081
3082 dup = strdup(thing);
3083 s = strtok(dup, ":");
3084 vdev = s ? s : "";
3085 s = strtok(NULL, ":");
3086 offset = strtoull(s ? s : "", NULL, 16);
3087 s = strtok(NULL, ":");
3088 size = strtoull(s ? s : "", NULL, 16);
3089 s = strtok(NULL, ":");
3090 flagstr = s ? s : "";
3091
3092 s = NULL;
3093 if (size == 0)
3094 s = "size must not be zero";
3095 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3096 s = "size must be a multiple of sector size";
3097 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3098 s = "offset must be a multiple of sector size";
3099 if (s) {
3100 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3101 free(dup);
3102 return;
3103 }
3104
3105 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3106 for (i = 0; flagstr[i]; i++) {
3107 int bit = flagbits[(uchar_t)flagstr[i]];
3108
3109 if (bit == 0) {
3110 (void) printf("***Invalid flag: %c\n",
3111 flagstr[i]);
3112 continue;
3113 }
3114 flags |= bit;
3115
3116 /* If it's not something with an argument, keep going */
3117 if ((bit & (ZDB_FLAG_CHECKSUM |
3118 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3119 continue;
3120
3121 p = &flagstr[i + 1];
3122 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3123 blkptr_offset = strtoull(p, &p, 16);
3124 if (*p != ':' && *p != '\0') {
3125 (void) printf("***Invalid flag arg: '%s'\n", s);
3126 free(dup);
3127 return;
3128 }
3129 }
3130 }
3131
3132 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3133 if (vd == NULL) {
3134 (void) printf("***Invalid vdev: %s\n", vdev);
3135 free(dup);
3136 return;
3137 } else {
3138 if (vd->vdev_path)
3139 (void) fprintf(stderr, "Found vdev: %s\n",
3140 vd->vdev_path);
3141 else
3142 (void) fprintf(stderr, "Found vdev type: %s\n",
3143 vd->vdev_ops->vdev_op_type);
3144 }
3145
3146 psize = size;
3147 lsize = size;
3148
3149 pbuf = umem_alloc_aligned(SPA_MAXBLOCKSIZE, 512, UMEM_NOFAIL);
3150 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3151
3152 BP_ZERO(bp);
3153
3154 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3155 DVA_SET_OFFSET(&dva[0], offset);
3156 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3157 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3158
3159 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3160
3161 BP_SET_LSIZE(bp, lsize);
3162 BP_SET_PSIZE(bp, psize);
3163 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3164 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3165 BP_SET_TYPE(bp, DMU_OT_NONE);
3166 BP_SET_LEVEL(bp, 0);
3167 BP_SET_DEDUP(bp, 0);
3168 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3169
3170 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3171 zio = zio_root(spa, NULL, NULL, 0);
3172
3173 if (vd == vd->vdev_top) {
3174 /*
3175 * Treat this as a normal block read.
3176 */
3177 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3178 ZIO_PRIORITY_SYNC_READ,
3179 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3180 } else {
3181 /*
3182 * Treat this as a vdev child I/O.
3183 */
3184 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3185 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3186 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3187 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3188 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3189 }
3190
3191 error = zio_wait(zio);
3192 spa_config_exit(spa, SCL_STATE, FTAG);
3193
3194 if (error) {
3195 (void) printf("Read of %s failed, error: %d\n", thing, error);
3196 goto out;
3197 }
3198
3199 if (flags & ZDB_FLAG_DECOMPRESS) {
3200 /*
3201 * We don't know how the data was compressed, so just try
3202 * every decompress function at every inflated blocksize.
3203 */
3204 enum zio_compress c;
3205 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3206 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3207
3208 bcopy(pbuf, pbuf2, psize);
3209
3210 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3211 SPA_MAXBLOCKSIZE - psize) == 0);
3212
3213 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3214 SPA_MAXBLOCKSIZE - psize) == 0);
3215
3216 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3217 lsize -= SPA_MINBLOCKSIZE) {
3218 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3219 if (zio_decompress_data(c, pbuf, lbuf,
3220 psize, lsize) == 0 &&
3221 zio_decompress_data(c, pbuf2, lbuf2,
3222 psize, lsize) == 0 &&
3223 bcmp(lbuf, lbuf2, lsize) == 0)
3224 break;
3225 }
3226 if (c != ZIO_COMPRESS_FUNCTIONS)
3227 break;
3228 lsize -= SPA_MINBLOCKSIZE;
3229 }
3230
3231 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3232 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3233
3234 if (lsize <= psize) {
3235 (void) printf("Decompress of %s failed\n", thing);
3236 goto out;
3237 }
3238 buf = lbuf;
3239 size = lsize;
3240 } else {
3241 buf = pbuf;
3242 size = psize;
3243 }
3244
3245 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3246 zdb_print_blkptr((blkptr_t *)(void *)
3247 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3248 else if (flags & ZDB_FLAG_RAW)
3249 zdb_dump_block_raw(buf, size, flags);
3250 else if (flags & ZDB_FLAG_INDIRECT)
3251 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3252 flags);
3253 else if (flags & ZDB_FLAG_GBH)
3254 zdb_dump_gbh(buf, flags);
3255 else
3256 zdb_dump_block(thing, buf, size, flags);
3257
3258 out:
3259 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3260 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3261 free(dup);
3262 }
3263
3264 static boolean_t
3265 pool_match(nvlist_t *cfg, char *tgt)
3266 {
3267 uint64_t v, guid = strtoull(tgt, NULL, 0);
3268 char *s;
3269
3270 if (guid != 0) {
3271 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3272 return (v == guid);
3273 } else {
3274 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3275 return (strcmp(s, tgt) == 0);
3276 }
3277 return (B_FALSE);
3278 }
3279
3280 static char *
3281 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3282 {
3283 nvlist_t *pools;
3284 nvlist_t *match = NULL;
3285 char *name = NULL;
3286 char *sepp = NULL;
3287 char sep = 0;
3288 int count = 0;
3289 importargs_t args = { 0 };
3290
3291 args.paths = dirc;
3292 args.path = dirv;
3293 args.can_be_active = B_TRUE;
3294
3295 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3296 sep = *sepp;
3297 *sepp = '\0';
3298 }
3299
3300 pools = zpool_search_import(g_zfs, &args);
3301
3302 if (pools != NULL) {
3303 nvpair_t *elem = NULL;
3304 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3305 verify(nvpair_value_nvlist(elem, configp) == 0);
3306 if (pool_match(*configp, *target)) {
3307 count++;
3308 if (match != NULL) {
3309 /* print previously found config */
3310 if (name != NULL) {
3311 (void) printf("%s\n", name);
3312 dump_nvlist(match, 8);
3313 name = NULL;
3314 }
3315 (void) printf("%s\n",
3316 nvpair_name(elem));
3317 dump_nvlist(*configp, 8);
3318 } else {
3319 match = *configp;
3320 name = nvpair_name(elem);
3321 }
3322 }
3323 }
3324 }
3325 if (count > 1)
3326 (void) fatal("\tMatched %d pools - use pool GUID "
3327 "instead of pool name or \n"
3328 "\tpool name part of a dataset name to select pool", count);
3329
3330 if (sepp)
3331 *sepp = sep;
3332 /*
3333 * If pool GUID was specified for pool id, replace it with pool name
3334 */
3335 if (name && (strstr(*target, name) != *target)) {
3336 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3337
3338 *target = umem_alloc(sz, UMEM_NOFAIL);
3339 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3340 }
3341
3342 *configp = name ? match : NULL;
3343
3344 return (name);
3345 }
3346
3347 int
3348 main(int argc, char **argv)
3349 {
3350 int i, c;
3351 struct rlimit rl = { 1024, 1024 };
3352 spa_t *spa = NULL;
3353 objset_t *os = NULL;
3354 int dump_all = 1;
3355 int verbose = 0;
3356 int error = 0;
3357 char **searchdirs = NULL;
3358 int nsearch = 0;
3359 char *target;
3360 nvlist_t *policy = NULL;
3361 uint64_t max_txg = UINT64_MAX;
3362 int flags = ZFS_IMPORT_MISSING_LOG;
3363 int rewind = ZPOOL_NEVER_REWIND;
3364 char *spa_config_path_env;
3365 const char *opts = "bcdhilmM:suCDRSAFLVXevp:t:U:P";
3366
3367 (void) setrlimit(RLIMIT_NOFILE, &rl);
3368 (void) enable_extended_FILE_stdio(-1, -1);
3369
3370 dprintf_setup(&argc, argv);
3371
3372 /*
3373 * If there is an environment variable SPA_CONFIG_PATH it overrides
3374 * default spa_config_path setting. If -U flag is specified it will
3375 * override this environment variable settings once again.
3376 */
3377 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3378 if (spa_config_path_env != NULL)
3379 spa_config_path = spa_config_path_env;
3380
3381 while ((c = getopt(argc, argv, opts)) != -1) {
3382 switch (c) {
3383 case 'b':
3384 case 'c':
3385 case 'd':
3386 case 'h':
3387 case 'i':
3388 case 'l':
3389 case 'm':
3390 case 's':
3391 case 'u':
3392 case 'C':
3393 case 'D':
3394 case 'R':
3395 case 'S':
3396 dump_opt[c]++;
3397 dump_all = 0;
3398 break;
3399 case 'A':
3400 case 'F':
3401 case 'L':
3402 case 'X':
3403 case 'e':
3404 case 'P':
3405 dump_opt[c]++;
3406 break;
3407 case 'V':
3408 flags = ZFS_IMPORT_VERBATIM;
3409 break;
3410 case 'v':
3411 verbose++;
3412 break;
3413 case 'M':
3414 max_inflight = strtoull(optarg, NULL, 0);
3415 if (max_inflight == 0) {
3416 (void) fprintf(stderr, "maximum number "
3417 "of inflight I/Os must be greater "
3418 "than 0\n");
3419 usage();
3420 }
3421 break;
3422 case 'p':
3423 if (searchdirs == NULL) {
3424 searchdirs = umem_alloc(sizeof (char *),
3425 UMEM_NOFAIL);
3426 } else {
3427 char **tmp = umem_alloc((nsearch + 1) *
3428 sizeof (char *), UMEM_NOFAIL);
3429 bcopy(searchdirs, tmp, nsearch *
3430 sizeof (char *));
3431 umem_free(searchdirs,
3432 nsearch * sizeof (char *));
3433 searchdirs = tmp;
3434 }
3435 searchdirs[nsearch++] = optarg;
3436 break;
3437 case 't':
3438 max_txg = strtoull(optarg, NULL, 0);
3439 if (max_txg < TXG_INITIAL) {
3440 (void) fprintf(stderr, "incorrect txg "
3441 "specified: %s\n", optarg);
3442 usage();
3443 }
3444 break;
3445 case 'U':
3446 spa_config_path = optarg;
3447 break;
3448 default:
3449 usage();
3450 break;
3451 }
3452 }
3453
3454 if (!dump_opt['e'] && searchdirs != NULL) {
3455 (void) fprintf(stderr, "-p option requires use of -e\n");
3456 usage();
3457 }
3458
3459 kernel_init(FREAD);
3460 if ((g_zfs = libzfs_init()) == NULL)
3461 return (1);
3462
3463 if (dump_all)
3464 verbose = MAX(verbose, 1);
3465
3466 for (c = 0; c < 256; c++) {
3467 if (dump_all && !strchr("elAFLRSXP", c))
3468 dump_opt[c] = 1;
3469 if (dump_opt[c])
3470 dump_opt[c] += verbose;
3471 }
3472
3473 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3474 zfs_recover = (dump_opt['A'] > 1);
3475
3476 argc -= optind;
3477 argv += optind;
3478
3479 if (argc < 2 && dump_opt['R'])
3480 usage();
3481 if (argc < 1) {
3482 if (!dump_opt['e'] && dump_opt['C']) {
3483 dump_cachefile(spa_config_path);
3484 return (0);
3485 }
3486 usage();
3487 }
3488
3489 if (dump_opt['l']) {
3490 dump_label(argv[0]);
3491 return (0);
3492 }
3493
3494 if (dump_opt['X'] || dump_opt['F'])
3495 rewind = ZPOOL_DO_REWIND |
3496 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3497
3498 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3499 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3500 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3501 fatal("internal error: %s", strerror(ENOMEM));
3502
3503 error = 0;
3504 target = argv[0];
3505
3506 if (dump_opt['e']) {
3507 nvlist_t *cfg = NULL;
3508 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3509
3510 error = ENOENT;
3511 if (name) {
3512 if (dump_opt['C'] > 1) {
3513 (void) printf("\nConfiguration for import:\n");
3514 dump_nvlist(cfg, 8);
3515 }
3516 if (nvlist_add_nvlist(cfg,
3517 ZPOOL_REWIND_POLICY, policy) != 0) {
3518 fatal("can't open '%s': %s",
3519 target, strerror(ENOMEM));
3520 }
3521 error = spa_import(name, cfg, NULL, flags);
3522 }
3523 }
3524
3525 if (error == 0) {
3526 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3527 error = spa_open_rewind(target, &spa, FTAG, policy,
3528 NULL);
3529 if (error) {
3530 /*
3531 * If we're missing the log device then
3532 * try opening the pool after clearing the
3533 * log state.
3534 */
3535 mutex_enter(&spa_namespace_lock);
3536 if ((spa = spa_lookup(target)) != NULL &&
3537 spa->spa_log_state == SPA_LOG_MISSING) {
3538 spa->spa_log_state = SPA_LOG_CLEAR;
3539 error = 0;
3540 }
3541 mutex_exit(&spa_namespace_lock);
3542
3543 if (!error) {
3544 error = spa_open_rewind(target, &spa,
3545 FTAG, policy, NULL);
3546 }
3547 }
3548 } else {
3549 error = dmu_objset_own(target, DMU_OST_ANY,
3550 B_TRUE, FTAG, &os);
3551 }
3552 }
3553 nvlist_free(policy);
3554
3555 if (error)
3556 fatal("can't open '%s': %s", target, strerror(error));
3557
3558 argv++;
3559 argc--;
3560 if (!dump_opt['R']) {
3561 if (argc > 0) {
3562 zopt_objects = argc;
3563 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3564 for (i = 0; i < zopt_objects; i++) {
3565 errno = 0;
3566 zopt_object[i] = strtoull(argv[i], NULL, 0);
3567 if (zopt_object[i] == 0 && errno != 0)
3568 fatal("bad number %s: %s",
3569 argv[i], strerror(errno));
3570 }
3571 }
3572 if (os != NULL) {
3573 dump_dir(os);
3574 } else if (zopt_objects > 0 && !dump_opt['m']) {
3575 dump_dir(spa->spa_meta_objset);
3576 } else {
3577 dump_zpool(spa);
3578 }
3579 } else {
3580 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3581 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3582 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3583 flagbits['e'] = ZDB_FLAG_BSWAP;
3584 flagbits['g'] = ZDB_FLAG_GBH;
3585 flagbits['i'] = ZDB_FLAG_INDIRECT;
3586 flagbits['p'] = ZDB_FLAG_PHYS;
3587 flagbits['r'] = ZDB_FLAG_RAW;
3588
3589 for (i = 0; i < argc; i++)
3590 zdb_read_block(argv[i], spa);
3591 }
3592
3593 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3594
3595 fuid_table_destroy();
3596 sa_loaded = B_FALSE;
3597
3598 libzfs_fini(g_zfs);
3599 kernel_fini();
3600
3601 return (0);
3602 }
ZFS On Linux mirror for PVE