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1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2013 by Delphix. All rights reserved.
25 */
26
27 #include <stdio.h>
28 #include <unistd.h>
29 #include <stdio_ext.h>
30 #include <stdlib.h>
31 #include <ctype.h>
32 #include <sys/zfs_context.h>
33 #include <sys/spa.h>
34 #include <sys/spa_impl.h>
35 #include <sys/dmu.h>
36 #include <sys/zap.h>
37 #include <sys/fs/zfs.h>
38 #include <sys/zfs_znode.h>
39 #include <sys/zfs_sa.h>
40 #include <sys/sa.h>
41 #include <sys/sa_impl.h>
42 #include <sys/vdev.h>
43 #include <sys/vdev_impl.h>
44 #include <sys/metaslab_impl.h>
45 #include <sys/dmu_objset.h>
46 #include <sys/dsl_dir.h>
47 #include <sys/dsl_dataset.h>
48 #include <sys/dsl_pool.h>
49 #include <sys/dbuf.h>
50 #include <sys/zil.h>
51 #include <sys/zil_impl.h>
52 #include <sys/stat.h>
53 #include <sys/resource.h>
54 #include <sys/dmu_traverse.h>
55 #include <sys/zio_checksum.h>
56 #include <sys/zio_compress.h>
57 #include <sys/zfs_fuid.h>
58 #include <sys/arc.h>
59 #include <sys/ddt.h>
60 #include <sys/zfeature.h>
61 #include <zfs_comutil.h>
62 #undef ZFS_MAXNAMELEN
63 #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 sprintf_blkptr(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 sprintf_blkptr_compact(char *blkbuf, 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 sprintf_blkptr(blkbuf, bp);
1047 return;
1048 }
1049
1050 blkbuf[0] = '\0';
1051
1052 for (i = 0; i < ndvas; i++)
1053 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ",
1054 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1055 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1056 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1057
1058 (void) sprintf(blkbuf + strlen(blkbuf),
1059 "%llxL/%llxP F=%llu B=%llu/%llu",
1060 (u_longlong_t)BP_GET_LSIZE(bp),
1061 (u_longlong_t)BP_GET_PSIZE(bp),
1062 (u_longlong_t)bp->blk_fill,
1063 (u_longlong_t)bp->blk_birth,
1064 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1065 }
1066
1067 static void
1068 print_indirect(blkptr_t *bp, const zbookmark_t *zb,
1069 const dnode_phys_t *dnp)
1070 {
1071 char blkbuf[BP_SPRINTF_LEN];
1072 int l;
1073
1074 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1075 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1076
1077 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1078
1079 ASSERT(zb->zb_level >= 0);
1080
1081 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1082 if (l == zb->zb_level) {
1083 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1084 } else {
1085 (void) printf(" ");
1086 }
1087 }
1088
1089 sprintf_blkptr_compact(blkbuf, bp);
1090 (void) printf("%s\n", blkbuf);
1091 }
1092
1093 static int
1094 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1095 blkptr_t *bp, const zbookmark_t *zb)
1096 {
1097 int err = 0;
1098
1099 if (bp->blk_birth == 0)
1100 return (0);
1101
1102 print_indirect(bp, zb, dnp);
1103
1104 if (BP_GET_LEVEL(bp) > 0) {
1105 uint32_t flags = ARC_WAIT;
1106 int i;
1107 blkptr_t *cbp;
1108 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1109 arc_buf_t *buf;
1110 uint64_t fill = 0;
1111
1112 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1113 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1114 if (err)
1115 return (err);
1116 ASSERT(buf->b_data);
1117
1118 /* recursively visit blocks below this */
1119 cbp = buf->b_data;
1120 for (i = 0; i < epb; i++, cbp++) {
1121 zbookmark_t czb;
1122
1123 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1124 zb->zb_level - 1,
1125 zb->zb_blkid * epb + i);
1126 err = visit_indirect(spa, dnp, cbp, &czb);
1127 if (err)
1128 break;
1129 fill += cbp->blk_fill;
1130 }
1131 if (!err)
1132 ASSERT3U(fill, ==, bp->blk_fill);
1133 (void) arc_buf_remove_ref(buf, &buf);
1134 }
1135
1136 return (err);
1137 }
1138
1139 /*ARGSUSED*/
1140 static void
1141 dump_indirect(dnode_t *dn)
1142 {
1143 dnode_phys_t *dnp = dn->dn_phys;
1144 int j;
1145 zbookmark_t czb;
1146
1147 (void) printf("Indirect blocks:\n");
1148
1149 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1150 dn->dn_object, dnp->dn_nlevels - 1, 0);
1151 for (j = 0; j < dnp->dn_nblkptr; j++) {
1152 czb.zb_blkid = j;
1153 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1154 &dnp->dn_blkptr[j], &czb);
1155 }
1156
1157 (void) printf("\n");
1158 }
1159
1160 /*ARGSUSED*/
1161 static void
1162 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1163 {
1164 dsl_dir_phys_t *dd = data;
1165 time_t crtime;
1166 char nice[32];
1167
1168 if (dd == NULL)
1169 return;
1170
1171 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1172
1173 crtime = dd->dd_creation_time;
1174 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1175 (void) printf("\t\thead_dataset_obj = %llu\n",
1176 (u_longlong_t)dd->dd_head_dataset_obj);
1177 (void) printf("\t\tparent_dir_obj = %llu\n",
1178 (u_longlong_t)dd->dd_parent_obj);
1179 (void) printf("\t\torigin_obj = %llu\n",
1180 (u_longlong_t)dd->dd_origin_obj);
1181 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1182 (u_longlong_t)dd->dd_child_dir_zapobj);
1183 zdb_nicenum(dd->dd_used_bytes, nice);
1184 (void) printf("\t\tused_bytes = %s\n", nice);
1185 zdb_nicenum(dd->dd_compressed_bytes, nice);
1186 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1187 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1188 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1189 zdb_nicenum(dd->dd_quota, nice);
1190 (void) printf("\t\tquota = %s\n", nice);
1191 zdb_nicenum(dd->dd_reserved, nice);
1192 (void) printf("\t\treserved = %s\n", nice);
1193 (void) printf("\t\tprops_zapobj = %llu\n",
1194 (u_longlong_t)dd->dd_props_zapobj);
1195 (void) printf("\t\tdeleg_zapobj = %llu\n",
1196 (u_longlong_t)dd->dd_deleg_zapobj);
1197 (void) printf("\t\tflags = %llx\n",
1198 (u_longlong_t)dd->dd_flags);
1199
1200 #define DO(which) \
1201 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1202 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1203 DO(HEAD);
1204 DO(SNAP);
1205 DO(CHILD);
1206 DO(CHILD_RSRV);
1207 DO(REFRSRV);
1208 #undef DO
1209 }
1210
1211 /*ARGSUSED*/
1212 static void
1213 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1214 {
1215 dsl_dataset_phys_t *ds = data;
1216 time_t crtime;
1217 char used[32], compressed[32], uncompressed[32], unique[32];
1218 char blkbuf[BP_SPRINTF_LEN];
1219
1220 if (ds == NULL)
1221 return;
1222
1223 ASSERT(size == sizeof (*ds));
1224 crtime = ds->ds_creation_time;
1225 zdb_nicenum(ds->ds_referenced_bytes, used);
1226 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1227 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1228 zdb_nicenum(ds->ds_unique_bytes, unique);
1229 sprintf_blkptr(blkbuf, &ds->ds_bp);
1230
1231 (void) printf("\t\tdir_obj = %llu\n",
1232 (u_longlong_t)ds->ds_dir_obj);
1233 (void) printf("\t\tprev_snap_obj = %llu\n",
1234 (u_longlong_t)ds->ds_prev_snap_obj);
1235 (void) printf("\t\tprev_snap_txg = %llu\n",
1236 (u_longlong_t)ds->ds_prev_snap_txg);
1237 (void) printf("\t\tnext_snap_obj = %llu\n",
1238 (u_longlong_t)ds->ds_next_snap_obj);
1239 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1240 (u_longlong_t)ds->ds_snapnames_zapobj);
1241 (void) printf("\t\tnum_children = %llu\n",
1242 (u_longlong_t)ds->ds_num_children);
1243 (void) printf("\t\tuserrefs_obj = %llu\n",
1244 (u_longlong_t)ds->ds_userrefs_obj);
1245 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1246 (void) printf("\t\tcreation_txg = %llu\n",
1247 (u_longlong_t)ds->ds_creation_txg);
1248 (void) printf("\t\tdeadlist_obj = %llu\n",
1249 (u_longlong_t)ds->ds_deadlist_obj);
1250 (void) printf("\t\tused_bytes = %s\n", used);
1251 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1252 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1253 (void) printf("\t\tunique = %s\n", unique);
1254 (void) printf("\t\tfsid_guid = %llu\n",
1255 (u_longlong_t)ds->ds_fsid_guid);
1256 (void) printf("\t\tguid = %llu\n",
1257 (u_longlong_t)ds->ds_guid);
1258 (void) printf("\t\tflags = %llx\n",
1259 (u_longlong_t)ds->ds_flags);
1260 (void) printf("\t\tnext_clones_obj = %llu\n",
1261 (u_longlong_t)ds->ds_next_clones_obj);
1262 (void) printf("\t\tprops_obj = %llu\n",
1263 (u_longlong_t)ds->ds_props_obj);
1264 (void) printf("\t\tbp = %s\n", blkbuf);
1265 }
1266
1267 /* ARGSUSED */
1268 static int
1269 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1270 {
1271 char blkbuf[BP_SPRINTF_LEN];
1272
1273 if (bp->blk_birth != 0) {
1274 sprintf_blkptr(blkbuf, bp);
1275 (void) printf("\t%s\n", blkbuf);
1276 }
1277 return (0);
1278 }
1279
1280 static void
1281 dump_bptree(objset_t *os, uint64_t obj, char *name)
1282 {
1283 char bytes[32];
1284 bptree_phys_t *bt;
1285 dmu_buf_t *db;
1286
1287 if (dump_opt['d'] < 3)
1288 return;
1289
1290 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1291 bt = db->db_data;
1292 zdb_nicenum(bt->bt_bytes, bytes);
1293 (void) printf("\n %s: %llu datasets, %s\n",
1294 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1295 dmu_buf_rele(db, FTAG);
1296
1297 if (dump_opt['d'] < 5)
1298 return;
1299
1300 (void) printf("\n");
1301
1302 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1303 }
1304
1305 /* ARGSUSED */
1306 static int
1307 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1308 {
1309 char blkbuf[BP_SPRINTF_LEN];
1310
1311 ASSERT(bp->blk_birth != 0);
1312 sprintf_blkptr_compact(blkbuf, bp);
1313 (void) printf("\t%s\n", blkbuf);
1314 return (0);
1315 }
1316
1317 static void
1318 dump_bpobj(bpobj_t *bpo, char *name, int indent)
1319 {
1320 char bytes[32];
1321 char comp[32];
1322 char uncomp[32];
1323 uint64_t i;
1324
1325 if (dump_opt['d'] < 3)
1326 return;
1327
1328 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1329 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1330 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1331 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1332 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1333 "%llu subobjs, %s (%s/%s comp)\n",
1334 indent * 8, name,
1335 (u_longlong_t)bpo->bpo_object,
1336 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1337 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1338 bytes, comp, uncomp);
1339
1340 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1341 uint64_t subobj;
1342 bpobj_t subbpo;
1343 int error;
1344 VERIFY0(dmu_read(bpo->bpo_os,
1345 bpo->bpo_phys->bpo_subobjs,
1346 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1347 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1348 if (error != 0) {
1349 (void) printf("ERROR %u while trying to open "
1350 "subobj id %llu\n",
1351 error, (u_longlong_t)subobj);
1352 continue;
1353 }
1354 dump_bpobj(&subbpo, "subobj", indent + 1);
1355 }
1356 } else {
1357 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1358 indent * 8, name,
1359 (u_longlong_t)bpo->bpo_object,
1360 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1361 bytes);
1362 }
1363
1364 if (dump_opt['d'] < 5)
1365 return;
1366
1367
1368 if (indent == 0) {
1369 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1370 (void) printf("\n");
1371 }
1372 }
1373
1374 static void
1375 dump_deadlist(dsl_deadlist_t *dl)
1376 {
1377 dsl_deadlist_entry_t *dle;
1378 uint64_t unused;
1379 char bytes[32];
1380 char comp[32];
1381 char uncomp[32];
1382
1383 if (dump_opt['d'] < 3)
1384 return;
1385
1386 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1387 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1388 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1389 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1390 bytes, comp, uncomp);
1391
1392 if (dump_opt['d'] < 4)
1393 return;
1394
1395 (void) printf("\n");
1396
1397 /* force the tree to be loaded */
1398 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1399
1400 for (dle = avl_first(&dl->dl_tree); dle;
1401 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1402 if (dump_opt['d'] >= 5) {
1403 char buf[128];
1404 (void) snprintf(buf, sizeof (buf),
1405 "mintxg %llu -> obj %llu",
1406 (longlong_t)dle->dle_mintxg,
1407 (longlong_t)dle->dle_bpobj.bpo_object);
1408
1409 dump_bpobj(&dle->dle_bpobj, buf, 0);
1410 } else {
1411 (void) printf("mintxg %llu -> obj %llu\n",
1412 (longlong_t)dle->dle_mintxg,
1413 (longlong_t)dle->dle_bpobj.bpo_object);
1414
1415 }
1416 }
1417 }
1418
1419 static avl_tree_t idx_tree;
1420 static avl_tree_t domain_tree;
1421 static boolean_t fuid_table_loaded;
1422 static boolean_t sa_loaded;
1423 sa_attr_type_t *sa_attr_table;
1424
1425 static void
1426 fuid_table_destroy(void)
1427 {
1428 if (fuid_table_loaded) {
1429 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1430 fuid_table_loaded = B_FALSE;
1431 }
1432 }
1433
1434 /*
1435 * print uid or gid information.
1436 * For normal POSIX id just the id is printed in decimal format.
1437 * For CIFS files with FUID the fuid is printed in hex followed by
1438 * the domain-rid string.
1439 */
1440 static void
1441 print_idstr(uint64_t id, const char *id_type)
1442 {
1443 if (FUID_INDEX(id)) {
1444 char *domain;
1445
1446 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1447 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1448 (u_longlong_t)id, domain, (int)FUID_RID(id));
1449 } else {
1450 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1451 }
1452
1453 }
1454
1455 static void
1456 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1457 {
1458 uint32_t uid_idx, gid_idx;
1459
1460 uid_idx = FUID_INDEX(uid);
1461 gid_idx = FUID_INDEX(gid);
1462
1463 /* Load domain table, if not already loaded */
1464 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1465 uint64_t fuid_obj;
1466
1467 /* first find the fuid object. It lives in the master node */
1468 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1469 8, 1, &fuid_obj) == 0);
1470 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1471 (void) zfs_fuid_table_load(os, fuid_obj,
1472 &idx_tree, &domain_tree);
1473 fuid_table_loaded = B_TRUE;
1474 }
1475
1476 print_idstr(uid, "uid");
1477 print_idstr(gid, "gid");
1478 }
1479
1480 static void
1481 dump_znode_sa_xattr(sa_handle_t *hdl)
1482 {
1483 nvlist_t *sa_xattr;
1484 nvpair_t *elem = NULL;
1485 int sa_xattr_size = 0;
1486 int sa_xattr_entries = 0;
1487 int error;
1488 char *sa_xattr_packed;
1489
1490 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size);
1491 if (error || sa_xattr_size == 0)
1492 return;
1493
1494 sa_xattr_packed = malloc(sa_xattr_size);
1495 if (sa_xattr_packed == NULL)
1496 return;
1497
1498 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR],
1499 sa_xattr_packed, sa_xattr_size);
1500 if (error) {
1501 free(sa_xattr_packed);
1502 return;
1503 }
1504
1505 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0);
1506 if (error) {
1507 free(sa_xattr_packed);
1508 return;
1509 }
1510
1511 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL)
1512 sa_xattr_entries++;
1513
1514 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n",
1515 sa_xattr_size, sa_xattr_entries);
1516 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) {
1517 uchar_t *value;
1518 uint_t cnt, idx;
1519
1520 (void) printf("\t\t%s = ", nvpair_name(elem));
1521 nvpair_value_byte_array(elem, &value, &cnt);
1522 for (idx = 0; idx < cnt; ++idx) {
1523 if (isprint(value[idx]))
1524 (void) putchar(value[idx]);
1525 else
1526 (void) printf("\\%3.3o", value[idx]);
1527 }
1528 (void) putchar('\n');
1529 }
1530
1531 nvlist_free(sa_xattr);
1532 free(sa_xattr_packed);
1533 }
1534
1535 /*ARGSUSED*/
1536 static void
1537 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1538 {
1539 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1540 sa_handle_t *hdl;
1541 uint64_t xattr, rdev, gen;
1542 uint64_t uid, gid, mode, fsize, parent, links;
1543 uint64_t pflags;
1544 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1545 time_t z_crtime, z_atime, z_mtime, z_ctime;
1546 sa_bulk_attr_t bulk[12];
1547 int idx = 0;
1548 int error;
1549
1550 if (!sa_loaded) {
1551 uint64_t sa_attrs = 0;
1552 uint64_t version;
1553
1554 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1555 8, 1, &version) == 0);
1556 if (version >= ZPL_VERSION_SA) {
1557 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1558 8, 1, &sa_attrs) == 0);
1559 }
1560 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1561 ZPL_END, &sa_attr_table)) != 0) {
1562 (void) printf("sa_setup failed errno %d, can't "
1563 "display znode contents\n", error);
1564 return;
1565 }
1566 sa_loaded = B_TRUE;
1567 }
1568
1569 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1570 (void) printf("Failed to get handle for SA znode\n");
1571 return;
1572 }
1573
1574 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1575 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1576 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1577 &links, 8);
1578 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1579 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1580 &mode, 8);
1581 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1582 NULL, &parent, 8);
1583 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1584 &fsize, 8);
1585 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1586 acctm, 16);
1587 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1588 modtm, 16);
1589 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1590 crtm, 16);
1591 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1592 chgtm, 16);
1593 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1594 &pflags, 8);
1595
1596 if (sa_bulk_lookup(hdl, bulk, idx)) {
1597 (void) sa_handle_destroy(hdl);
1598 return;
1599 }
1600
1601 error = zfs_obj_to_path(os, object, path, sizeof (path));
1602 if (error != 0) {
1603 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1604 (u_longlong_t)object);
1605 }
1606 if (dump_opt['d'] < 3) {
1607 (void) printf("\t%s\n", path);
1608 (void) sa_handle_destroy(hdl);
1609 return;
1610 }
1611
1612 z_crtime = (time_t)crtm[0];
1613 z_atime = (time_t)acctm[0];
1614 z_mtime = (time_t)modtm[0];
1615 z_ctime = (time_t)chgtm[0];
1616
1617 (void) printf("\tpath %s\n", path);
1618 dump_uidgid(os, uid, gid);
1619 (void) printf("\tatime %s", ctime(&z_atime));
1620 (void) printf("\tmtime %s", ctime(&z_mtime));
1621 (void) printf("\tctime %s", ctime(&z_ctime));
1622 (void) printf("\tcrtime %s", ctime(&z_crtime));
1623 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1624 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1625 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1626 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1627 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1628 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1629 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1630 sizeof (uint64_t)) == 0)
1631 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1632 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1633 sizeof (uint64_t)) == 0)
1634 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1635 dump_znode_sa_xattr(hdl);
1636 sa_handle_destroy(hdl);
1637 }
1638
1639 /*ARGSUSED*/
1640 static void
1641 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1642 {
1643 }
1644
1645 /*ARGSUSED*/
1646 static void
1647 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1648 {
1649 }
1650
1651 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1652 dump_none, /* unallocated */
1653 dump_zap, /* object directory */
1654 dump_uint64, /* object array */
1655 dump_none, /* packed nvlist */
1656 dump_packed_nvlist, /* packed nvlist size */
1657 dump_none, /* bplist */
1658 dump_none, /* bplist header */
1659 dump_none, /* SPA space map header */
1660 dump_none, /* SPA space map */
1661 dump_none, /* ZIL intent log */
1662 dump_dnode, /* DMU dnode */
1663 dump_dmu_objset, /* DMU objset */
1664 dump_dsl_dir, /* DSL directory */
1665 dump_zap, /* DSL directory child map */
1666 dump_zap, /* DSL dataset snap map */
1667 dump_zap, /* DSL props */
1668 dump_dsl_dataset, /* DSL dataset */
1669 dump_znode, /* ZFS znode */
1670 dump_acl, /* ZFS V0 ACL */
1671 dump_uint8, /* ZFS plain file */
1672 dump_zpldir, /* ZFS directory */
1673 dump_zap, /* ZFS master node */
1674 dump_zap, /* ZFS delete queue */
1675 dump_uint8, /* zvol object */
1676 dump_zap, /* zvol prop */
1677 dump_uint8, /* other uint8[] */
1678 dump_uint64, /* other uint64[] */
1679 dump_zap, /* other ZAP */
1680 dump_zap, /* persistent error log */
1681 dump_uint8, /* SPA history */
1682 dump_history_offsets, /* SPA history offsets */
1683 dump_zap, /* Pool properties */
1684 dump_zap, /* DSL permissions */
1685 dump_acl, /* ZFS ACL */
1686 dump_uint8, /* ZFS SYSACL */
1687 dump_none, /* FUID nvlist */
1688 dump_packed_nvlist, /* FUID nvlist size */
1689 dump_zap, /* DSL dataset next clones */
1690 dump_zap, /* DSL scrub queue */
1691 dump_zap, /* ZFS user/group used */
1692 dump_zap, /* ZFS user/group quota */
1693 dump_zap, /* snapshot refcount tags */
1694 dump_ddt_zap, /* DDT ZAP object */
1695 dump_zap, /* DDT statistics */
1696 dump_znode, /* SA object */
1697 dump_zap, /* SA Master Node */
1698 dump_sa_attrs, /* SA attribute registration */
1699 dump_sa_layouts, /* SA attribute layouts */
1700 dump_zap, /* DSL scrub translations */
1701 dump_none, /* fake dedup BP */
1702 dump_zap, /* deadlist */
1703 dump_none, /* deadlist hdr */
1704 dump_zap, /* dsl clones */
1705 dump_none, /* bpobj subobjs */
1706 dump_unknown, /* Unknown type, must be last */
1707 };
1708
1709 static void
1710 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1711 {
1712 dmu_buf_t *db = NULL;
1713 dmu_object_info_t doi;
1714 dnode_t *dn;
1715 void *bonus = NULL;
1716 size_t bsize = 0;
1717 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1718 char bonus_size[32];
1719 char aux[50];
1720 int error;
1721
1722 if (*print_header) {
1723 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1724 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1725 "%full", "type");
1726 *print_header = 0;
1727 }
1728
1729 if (object == 0) {
1730 dn = DMU_META_DNODE(os);
1731 } else {
1732 error = dmu_bonus_hold(os, object, FTAG, &db);
1733 if (error)
1734 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1735 object, error);
1736 bonus = db->db_data;
1737 bsize = db->db_size;
1738 dn = DB_DNODE((dmu_buf_impl_t *)db);
1739 }
1740 dmu_object_info_from_dnode(dn, &doi);
1741
1742 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1743 zdb_nicenum(doi.doi_data_block_size, dblk);
1744 zdb_nicenum(doi.doi_max_offset, lsize);
1745 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1746 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1747 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1748 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1749 doi.doi_max_offset);
1750
1751 aux[0] = '\0';
1752
1753 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1754 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1755 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1756 }
1757
1758 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1759 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1760 ZDB_COMPRESS_NAME(doi.doi_compress));
1761 }
1762
1763 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1764 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1765 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1766
1767 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1768 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1769 "", "", "", "", "", bonus_size, "bonus",
1770 ZDB_OT_NAME(doi.doi_bonus_type));
1771 }
1772
1773 if (verbosity >= 4) {
1774 (void) printf("\tdnode flags: %s%s%s\n",
1775 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1776 "USED_BYTES " : "",
1777 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1778 "USERUSED_ACCOUNTED " : "",
1779 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1780 "SPILL_BLKPTR" : "");
1781 (void) printf("\tdnode maxblkid: %llu\n",
1782 (longlong_t)dn->dn_phys->dn_maxblkid);
1783
1784 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1785 bonus, bsize);
1786 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1787 *print_header = 1;
1788 }
1789
1790 if (verbosity >= 5)
1791 dump_indirect(dn);
1792
1793 if (verbosity >= 5) {
1794 /*
1795 * Report the list of segments that comprise the object.
1796 */
1797 uint64_t start = 0;
1798 uint64_t end;
1799 uint64_t blkfill = 1;
1800 int minlvl = 1;
1801
1802 if (dn->dn_type == DMU_OT_DNODE) {
1803 minlvl = 0;
1804 blkfill = DNODES_PER_BLOCK;
1805 }
1806
1807 for (;;) {
1808 char segsize[32];
1809 error = dnode_next_offset(dn,
1810 0, &start, minlvl, blkfill, 0);
1811 if (error)
1812 break;
1813 end = start;
1814 error = dnode_next_offset(dn,
1815 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1816 zdb_nicenum(end - start, segsize);
1817 (void) printf("\t\tsegment [%016llx, %016llx)"
1818 " size %5s\n", (u_longlong_t)start,
1819 (u_longlong_t)end, segsize);
1820 if (error)
1821 break;
1822 start = end;
1823 }
1824 }
1825
1826 if (db != NULL)
1827 dmu_buf_rele(db, FTAG);
1828 }
1829
1830 static char *objset_types[DMU_OST_NUMTYPES] = {
1831 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1832
1833 static void
1834 dump_dir(objset_t *os)
1835 {
1836 dmu_objset_stats_t dds;
1837 uint64_t object, object_count;
1838 uint64_t refdbytes, usedobjs, scratch;
1839 char numbuf[32];
1840 char blkbuf[BP_SPRINTF_LEN + 20];
1841 char osname[MAXNAMELEN];
1842 char *type = "UNKNOWN";
1843 int verbosity = dump_opt['d'];
1844 int print_header = 1;
1845 int i, error;
1846
1847 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1848 dmu_objset_fast_stat(os, &dds);
1849 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1850
1851 if (dds.dds_type < DMU_OST_NUMTYPES)
1852 type = objset_types[dds.dds_type];
1853
1854 if (dds.dds_type == DMU_OST_META) {
1855 dds.dds_creation_txg = TXG_INITIAL;
1856 usedobjs = os->os_rootbp->blk_fill;
1857 refdbytes = os->os_spa->spa_dsl_pool->
1858 dp_mos_dir->dd_phys->dd_used_bytes;
1859 } else {
1860 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1861 }
1862
1863 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill);
1864
1865 zdb_nicenum(refdbytes, numbuf);
1866
1867 if (verbosity >= 4) {
1868 (void) sprintf(blkbuf, ", rootbp ");
1869 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp);
1870 } else {
1871 blkbuf[0] = '\0';
1872 }
1873
1874 dmu_objset_name(os, osname);
1875
1876 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1877 "%s, %llu objects%s\n",
1878 osname, type, (u_longlong_t)dmu_objset_id(os),
1879 (u_longlong_t)dds.dds_creation_txg,
1880 numbuf, (u_longlong_t)usedobjs, blkbuf);
1881
1882 if (zopt_objects != 0) {
1883 for (i = 0; i < zopt_objects; i++)
1884 dump_object(os, zopt_object[i], verbosity,
1885 &print_header);
1886 (void) printf("\n");
1887 return;
1888 }
1889
1890 if (dump_opt['i'] != 0 || verbosity >= 2)
1891 dump_intent_log(dmu_objset_zil(os));
1892
1893 if (dmu_objset_ds(os) != NULL)
1894 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1895
1896 if (verbosity < 2)
1897 return;
1898
1899 if (os->os_rootbp->blk_birth == 0)
1900 return;
1901
1902 dump_object(os, 0, verbosity, &print_header);
1903 object_count = 0;
1904 if (DMU_USERUSED_DNODE(os) != NULL &&
1905 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1906 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1907 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1908 }
1909
1910 object = 0;
1911 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1912 dump_object(os, object, verbosity, &print_header);
1913 object_count++;
1914 }
1915
1916 ASSERT3U(object_count, ==, usedobjs);
1917
1918 (void) printf("\n");
1919
1920 if (error != ESRCH) {
1921 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1922 abort();
1923 }
1924 }
1925
1926 static void
1927 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
1928 {
1929 time_t timestamp = ub->ub_timestamp;
1930
1931 (void) printf("%s", header ? header : "");
1932 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1933 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1934 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1935 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1936 (void) printf("\ttimestamp = %llu UTC = %s",
1937 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
1938 if (dump_opt['u'] >= 3) {
1939 char blkbuf[BP_SPRINTF_LEN];
1940 sprintf_blkptr(blkbuf, &ub->ub_rootbp);
1941 (void) printf("\trootbp = %s\n", blkbuf);
1942 }
1943 (void) printf("%s", footer ? footer : "");
1944 }
1945
1946 static void
1947 dump_config(spa_t *spa)
1948 {
1949 dmu_buf_t *db;
1950 size_t nvsize = 0;
1951 int error = 0;
1952
1953
1954 error = dmu_bonus_hold(spa->spa_meta_objset,
1955 spa->spa_config_object, FTAG, &db);
1956
1957 if (error == 0) {
1958 nvsize = *(uint64_t *)db->db_data;
1959 dmu_buf_rele(db, FTAG);
1960
1961 (void) printf("\nMOS Configuration:\n");
1962 dump_packed_nvlist(spa->spa_meta_objset,
1963 spa->spa_config_object, (void *)&nvsize, 1);
1964 } else {
1965 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
1966 (u_longlong_t)spa->spa_config_object, error);
1967 }
1968 }
1969
1970 static void
1971 dump_cachefile(const char *cachefile)
1972 {
1973 int fd;
1974 struct stat64 statbuf;
1975 char *buf;
1976 nvlist_t *config;
1977
1978 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1979 (void) printf("cannot open '%s': %s\n", cachefile,
1980 strerror(errno));
1981 exit(1);
1982 }
1983
1984 if (fstat64(fd, &statbuf) != 0) {
1985 (void) printf("failed to stat '%s': %s\n", cachefile,
1986 strerror(errno));
1987 exit(1);
1988 }
1989
1990 if ((buf = malloc(statbuf.st_size)) == NULL) {
1991 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
1992 (u_longlong_t)statbuf.st_size);
1993 exit(1);
1994 }
1995
1996 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1997 (void) fprintf(stderr, "failed to read %llu bytes\n",
1998 (u_longlong_t)statbuf.st_size);
1999 exit(1);
2000 }
2001
2002 (void) close(fd);
2003
2004 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2005 (void) fprintf(stderr, "failed to unpack nvlist\n");
2006 exit(1);
2007 }
2008
2009 free(buf);
2010
2011 dump_nvlist(config, 0);
2012
2013 nvlist_free(config);
2014 }
2015
2016 #define ZDB_MAX_UB_HEADER_SIZE 32
2017
2018 static void
2019 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2020 {
2021 vdev_t vd;
2022 vdev_t *vdp = &vd;
2023 char header[ZDB_MAX_UB_HEADER_SIZE];
2024 int i;
2025
2026 vd.vdev_ashift = ashift;
2027 vdp->vdev_top = vdp;
2028
2029 for (i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2030 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2031 uberblock_t *ub = (void *)((char *)lbl + uoff);
2032
2033 if (uberblock_verify(ub))
2034 continue;
2035 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2036 "Uberblock[%d]\n", i);
2037 dump_uberblock(ub, header, "");
2038 }
2039 }
2040
2041 static void
2042 dump_label(const char *dev)
2043 {
2044 int fd;
2045 vdev_label_t label;
2046 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
2047 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2048 struct stat64 statbuf;
2049 uint64_t psize, ashift;
2050 int len = strlen(dev) + 1;
2051 int l;
2052
2053 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
2054 len++;
2055 path = malloc(len);
2056 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
2057 } else {
2058 path = strdup(dev);
2059 }
2060
2061 if ((fd = open64(path, O_RDONLY)) < 0) {
2062 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2063 free(path);
2064 exit(1);
2065 }
2066
2067 if (fstat64_blk(fd, &statbuf) != 0) {
2068 (void) printf("failed to stat '%s': %s\n", path,
2069 strerror(errno));
2070 free(path);
2071 (void) close(fd);
2072 exit(1);
2073 }
2074
2075 psize = statbuf.st_size;
2076 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2077
2078 for (l = 0; l < VDEV_LABELS; l++) {
2079 nvlist_t *config = NULL;
2080
2081 (void) printf("--------------------------------------------\n");
2082 (void) printf("LABEL %d\n", l);
2083 (void) printf("--------------------------------------------\n");
2084
2085 if (pread64(fd, &label, sizeof (label),
2086 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2087 (void) printf("failed to read label %d\n", l);
2088 continue;
2089 }
2090
2091 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2092 (void) printf("failed to unpack label %d\n", l);
2093 ashift = SPA_MINBLOCKSHIFT;
2094 } else {
2095 nvlist_t *vdev_tree = NULL;
2096
2097 dump_nvlist(config, 4);
2098 if ((nvlist_lookup_nvlist(config,
2099 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2100 (nvlist_lookup_uint64(vdev_tree,
2101 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2102 ashift = SPA_MINBLOCKSHIFT;
2103 nvlist_free(config);
2104 }
2105 if (dump_opt['u'])
2106 dump_label_uberblocks(&label, ashift);
2107 }
2108
2109 free(path);
2110 (void) close(fd);
2111 }
2112
2113 /*ARGSUSED*/
2114 static int
2115 dump_one_dir(const char *dsname, void *arg)
2116 {
2117 int error;
2118 objset_t *os;
2119
2120 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
2121 if (error) {
2122 (void) printf("Could not open %s, error %d\n", dsname, error);
2123 return (0);
2124 }
2125 dump_dir(os);
2126 dmu_objset_disown(os, FTAG);
2127 fuid_table_destroy();
2128 sa_loaded = B_FALSE;
2129 return (0);
2130 }
2131
2132 /*
2133 * Block statistics.
2134 */
2135 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1)
2136 typedef struct zdb_blkstats {
2137 uint64_t zb_asize;
2138 uint64_t zb_lsize;
2139 uint64_t zb_psize;
2140 uint64_t zb_count;
2141 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2142 } zdb_blkstats_t;
2143
2144 /*
2145 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2146 */
2147 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2148 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2149 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2150 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2151
2152 static char *zdb_ot_extname[] = {
2153 "deferred free",
2154 "dedup ditto",
2155 "other",
2156 "Total",
2157 };
2158
2159 #define ZB_TOTAL DN_MAX_LEVELS
2160
2161 typedef struct zdb_cb {
2162 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2163 uint64_t zcb_dedup_asize;
2164 uint64_t zcb_dedup_blocks;
2165 uint64_t zcb_start;
2166 uint64_t zcb_lastprint;
2167 uint64_t zcb_totalasize;
2168 uint64_t zcb_errors[256];
2169 int zcb_readfails;
2170 int zcb_haderrors;
2171 spa_t *zcb_spa;
2172 } zdb_cb_t;
2173
2174 static void
2175 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2176 dmu_object_type_t type)
2177 {
2178 uint64_t refcnt = 0;
2179 int i;
2180
2181 ASSERT(type < ZDB_OT_TOTAL);
2182
2183 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2184 return;
2185
2186 for (i = 0; i < 4; i++) {
2187 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2188 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2189 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2190
2191 zb->zb_asize += BP_GET_ASIZE(bp);
2192 zb->zb_lsize += BP_GET_LSIZE(bp);
2193 zb->zb_psize += BP_GET_PSIZE(bp);
2194 zb->zb_count++;
2195 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++;
2196 }
2197
2198 if (dump_opt['L'])
2199 return;
2200
2201 if (BP_GET_DEDUP(bp)) {
2202 ddt_t *ddt;
2203 ddt_entry_t *dde;
2204
2205 ddt = ddt_select(zcb->zcb_spa, bp);
2206 ddt_enter(ddt);
2207 dde = ddt_lookup(ddt, bp, B_FALSE);
2208
2209 if (dde == NULL) {
2210 refcnt = 0;
2211 } else {
2212 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2213 ddt_phys_decref(ddp);
2214 refcnt = ddp->ddp_refcnt;
2215 if (ddt_phys_total_refcnt(dde) == 0)
2216 ddt_remove(ddt, dde);
2217 }
2218 ddt_exit(ddt);
2219 }
2220
2221 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2222 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2223 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2224 }
2225
2226 static void
2227 zdb_blkptr_done(zio_t *zio)
2228 {
2229 spa_t *spa = zio->io_spa;
2230 blkptr_t *bp = zio->io_bp;
2231 int ioerr = zio->io_error;
2232 zdb_cb_t *zcb = zio->io_private;
2233 zbookmark_t *zb = &zio->io_bookmark;
2234
2235 zio_data_buf_free(zio->io_data, zio->io_size);
2236
2237 mutex_enter(&spa->spa_scrub_lock);
2238 spa->spa_scrub_inflight--;
2239 cv_broadcast(&spa->spa_scrub_io_cv);
2240
2241 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2242 char blkbuf[BP_SPRINTF_LEN];
2243
2244 zcb->zcb_haderrors = 1;
2245 zcb->zcb_errors[ioerr]++;
2246
2247 if (dump_opt['b'] >= 2)
2248 sprintf_blkptr(blkbuf, bp);
2249 else
2250 blkbuf[0] = '\0';
2251
2252 (void) printf("zdb_blkptr_cb: "
2253 "Got error %d reading "
2254 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2255 ioerr,
2256 (u_longlong_t)zb->zb_objset,
2257 (u_longlong_t)zb->zb_object,
2258 (u_longlong_t)zb->zb_level,
2259 (u_longlong_t)zb->zb_blkid,
2260 blkbuf);
2261 }
2262 mutex_exit(&spa->spa_scrub_lock);
2263 }
2264
2265 static int
2266 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2267 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2268 {
2269 zdb_cb_t *zcb = arg;
2270 char blkbuf[BP_SPRINTF_LEN];
2271 dmu_object_type_t type;
2272 boolean_t is_metadata;
2273
2274 if (bp == NULL)
2275 return (0);
2276
2277 type = BP_GET_TYPE(bp);
2278
2279 zdb_count_block(zcb, zilog, bp,
2280 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2281
2282 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2283
2284 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) {
2285 size_t size = BP_GET_PSIZE(bp);
2286 void *data = zio_data_buf_alloc(size);
2287 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2288
2289 /* If it's an intent log block, failure is expected. */
2290 if (zb->zb_level == ZB_ZIL_LEVEL)
2291 flags |= ZIO_FLAG_SPECULATIVE;
2292
2293 mutex_enter(&spa->spa_scrub_lock);
2294 while (spa->spa_scrub_inflight > max_inflight)
2295 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2296 spa->spa_scrub_inflight++;
2297 mutex_exit(&spa->spa_scrub_lock);
2298
2299 zio_nowait(zio_read(NULL, spa, bp, data, size,
2300 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2301 }
2302
2303 zcb->zcb_readfails = 0;
2304
2305 if (dump_opt['b'] >= 5) {
2306 sprintf_blkptr(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 (dump_opt['b'] < 5 && isatty(STDERR_FILENO) &&
2317 gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2318 uint64_t now = gethrtime();
2319 char buf[10];
2320 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2321 int kb_per_sec =
2322 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2323 int sec_remaining =
2324 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2325
2326 zfs_nicenum(bytes, buf, sizeof (buf));
2327 (void) fprintf(stderr,
2328 "\r%5s completed (%4dMB/s) "
2329 "estimated time remaining: %uhr %02umin %02usec ",
2330 buf, kb_per_sec / 1024,
2331 sec_remaining / 60 / 60,
2332 sec_remaining / 60 % 60,
2333 sec_remaining % 60);
2334
2335 zcb->zcb_lastprint = now;
2336 }
2337
2338 return (0);
2339 }
2340
2341 static void
2342 zdb_leak(void *arg, uint64_t start, uint64_t size)
2343 {
2344 vdev_t *vd = arg;
2345
2346 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2347 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2348 }
2349
2350 static metaslab_ops_t zdb_metaslab_ops = {
2351 NULL, /* alloc */
2352 NULL /* fragmented */
2353 };
2354
2355 static void
2356 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2357 {
2358 ddt_bookmark_t ddb = { 0 };
2359 ddt_entry_t dde;
2360 int error;
2361 int p;
2362
2363 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2364 blkptr_t blk;
2365 ddt_phys_t *ddp = dde.dde_phys;
2366
2367 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2368 return;
2369
2370 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2371
2372 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2373 if (ddp->ddp_phys_birth == 0)
2374 continue;
2375 ddt_bp_create(ddb.ddb_checksum,
2376 &dde.dde_key, ddp, &blk);
2377 if (p == DDT_PHYS_DITTO) {
2378 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2379 } else {
2380 zcb->zcb_dedup_asize +=
2381 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2382 zcb->zcb_dedup_blocks++;
2383 }
2384 }
2385 if (!dump_opt['L']) {
2386 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2387 ddt_enter(ddt);
2388 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2389 ddt_exit(ddt);
2390 }
2391 }
2392
2393 ASSERT(error == ENOENT);
2394 }
2395
2396 static void
2397 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2398 {
2399 zcb->zcb_spa = spa;
2400 int c, m;
2401
2402 if (!dump_opt['L']) {
2403 vdev_t *rvd = spa->spa_root_vdev;
2404 for (c = 0; c < rvd->vdev_children; c++) {
2405 vdev_t *vd = rvd->vdev_child[c];
2406 for (m = 0; m < vd->vdev_ms_count; m++) {
2407 metaslab_t *msp = vd->vdev_ms[m];
2408 mutex_enter(&msp->ms_lock);
2409 metaslab_unload(msp);
2410
2411 /*
2412 * For leak detection, we overload the metaslab
2413 * ms_tree to contain allocated segments
2414 * instead of free segments. As a result,
2415 * we can't use the normal metaslab_load/unload
2416 * interfaces.
2417 */
2418 if (msp->ms_sm != NULL) {
2419 msp->ms_ops = &zdb_metaslab_ops;
2420 VERIFY0(space_map_load(msp->ms_sm,
2421 msp->ms_tree, SM_ALLOC));
2422 msp->ms_loaded = B_TRUE;
2423 }
2424 mutex_exit(&msp->ms_lock);
2425 }
2426 }
2427 }
2428
2429 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2430
2431 zdb_ddt_leak_init(spa, zcb);
2432
2433 spa_config_exit(spa, SCL_CONFIG, FTAG);
2434 }
2435
2436 static void
2437 zdb_leak_fini(spa_t *spa)
2438 {
2439 int c, m;
2440
2441 if (!dump_opt['L']) {
2442 vdev_t *rvd = spa->spa_root_vdev;
2443 for (c = 0; c < rvd->vdev_children; c++) {
2444 vdev_t *vd = rvd->vdev_child[c];
2445 for (m = 0; m < vd->vdev_ms_count; m++) {
2446 metaslab_t *msp = vd->vdev_ms[m];
2447 mutex_enter(&msp->ms_lock);
2448
2449 /*
2450 * The ms_tree has been overloaded to
2451 * contain allocated segments. Now that we
2452 * finished traversing all blocks, any
2453 * block that remains in the ms_tree
2454 * represents an allocated block that we
2455 * did not claim during the traversal.
2456 * Claimed blocks would have been removed
2457 * from the ms_tree.
2458 */
2459 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2460 msp->ms_loaded = B_FALSE;
2461
2462 mutex_exit(&msp->ms_lock);
2463 }
2464 }
2465 }
2466 }
2467
2468 /* ARGSUSED */
2469 static int
2470 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2471 {
2472 zdb_cb_t *zcb = arg;
2473
2474 if (dump_opt['b'] >= 5) {
2475 char blkbuf[BP_SPRINTF_LEN];
2476 sprintf_blkptr(blkbuf, bp);
2477 (void) printf("[%s] %s\n",
2478 "deferred free", blkbuf);
2479 }
2480 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2481 return (0);
2482 }
2483
2484 static int
2485 dump_block_stats(spa_t *spa)
2486 {
2487 zdb_cb_t zcb;
2488 zdb_blkstats_t *zb, *tzb;
2489 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2490 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2491 int leaks = 0;
2492 int e;
2493
2494 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2495 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2496 (dump_opt['c'] == 1) ? "metadata " : "",
2497 dump_opt['c'] ? "checksums " : "",
2498 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2499 !dump_opt['L'] ? "nothing leaked " : "");
2500
2501 /*
2502 * Load all space maps as SM_ALLOC maps, then traverse the pool
2503 * claiming each block we discover. If the pool is perfectly
2504 * consistent, the space maps will be empty when we're done.
2505 * Anything left over is a leak; any block we can't claim (because
2506 * it's not part of any space map) is a double allocation,
2507 * reference to a freed block, or an unclaimed log block.
2508 */
2509 bzero(&zcb, sizeof (zdb_cb_t));
2510 zdb_leak_init(spa, &zcb);
2511
2512 /*
2513 * If there's a deferred-free bplist, process that first.
2514 */
2515 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2516 count_block_cb, &zcb, NULL);
2517 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2518 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2519 count_block_cb, &zcb, NULL);
2520 }
2521 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2522 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2523 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2524 &zcb, NULL));
2525 }
2526
2527 if (dump_opt['c'] > 1)
2528 flags |= TRAVERSE_PREFETCH_DATA;
2529
2530 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2531 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2532 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2533
2534 /*
2535 * If we've traversed the data blocks then we need to wait for those
2536 * I/Os to complete. We leverage "The Godfather" zio to wait on
2537 * all async I/Os to complete.
2538 */
2539 if (dump_opt['c']) {
2540 (void) zio_wait(spa->spa_async_zio_root);
2541 spa->spa_async_zio_root = zio_root(spa, NULL, NULL,
2542 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2543 ZIO_FLAG_GODFATHER);
2544 }
2545
2546 if (zcb.zcb_haderrors) {
2547 (void) printf("\nError counts:\n\n");
2548 (void) printf("\t%5s %s\n", "errno", "count");
2549 for (e = 0; e < 256; e++) {
2550 if (zcb.zcb_errors[e] != 0) {
2551 (void) printf("\t%5d %llu\n",
2552 e, (u_longlong_t)zcb.zcb_errors[e]);
2553 }
2554 }
2555 }
2556
2557 /*
2558 * Report any leaked segments.
2559 */
2560 zdb_leak_fini(spa);
2561
2562 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2563
2564 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2565 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2566
2567 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2568 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2569
2570 if (total_found == total_alloc) {
2571 if (!dump_opt['L'])
2572 (void) printf("\n\tNo leaks (block sum matches space"
2573 " maps exactly)\n");
2574 } else {
2575 (void) printf("block traversal size %llu != alloc %llu "
2576 "(%s %lld)\n",
2577 (u_longlong_t)total_found,
2578 (u_longlong_t)total_alloc,
2579 (dump_opt['L']) ? "unreachable" : "leaked",
2580 (longlong_t)(total_alloc - total_found));
2581 leaks = 1;
2582 }
2583
2584 if (tzb->zb_count == 0)
2585 return (2);
2586
2587 (void) printf("\n");
2588 (void) printf("\tbp count: %10llu\n",
2589 (u_longlong_t)tzb->zb_count);
2590 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2591 (u_longlong_t)tzb->zb_lsize,
2592 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2593 (void) printf("\tbp physical: %10llu avg:"
2594 " %6llu compression: %6.2f\n",
2595 (u_longlong_t)tzb->zb_psize,
2596 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2597 (double)tzb->zb_lsize / tzb->zb_psize);
2598 (void) printf("\tbp allocated: %10llu avg:"
2599 " %6llu compression: %6.2f\n",
2600 (u_longlong_t)tzb->zb_asize,
2601 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2602 (double)tzb->zb_lsize / tzb->zb_asize);
2603 (void) printf("\tbp deduped: %10llu ref>1:"
2604 " %6llu deduplication: %6.2f\n",
2605 (u_longlong_t)zcb.zcb_dedup_asize,
2606 (u_longlong_t)zcb.zcb_dedup_blocks,
2607 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2608 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2609 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2610
2611 if (dump_opt['b'] >= 2) {
2612 int l, t, level;
2613 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2614 "\t avg\t comp\t%%Total\tType\n");
2615
2616 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2617 char csize[32], lsize[32], psize[32], asize[32];
2618 char avg[32];
2619 char *typename;
2620
2621 if (t < DMU_OT_NUMTYPES)
2622 typename = dmu_ot[t].ot_name;
2623 else
2624 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2625
2626 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2627 (void) printf("%6s\t%5s\t%5s\t%5s"
2628 "\t%5s\t%5s\t%6s\t%s\n",
2629 "-",
2630 "-",
2631 "-",
2632 "-",
2633 "-",
2634 "-",
2635 "-",
2636 typename);
2637 continue;
2638 }
2639
2640 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2641 level = (l == -1 ? ZB_TOTAL : l);
2642 zb = &zcb.zcb_type[level][t];
2643
2644 if (zb->zb_asize == 0)
2645 continue;
2646
2647 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2648 continue;
2649
2650 if (level == 0 && zb->zb_asize ==
2651 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2652 continue;
2653
2654 zdb_nicenum(zb->zb_count, csize);
2655 zdb_nicenum(zb->zb_lsize, lsize);
2656 zdb_nicenum(zb->zb_psize, psize);
2657 zdb_nicenum(zb->zb_asize, asize);
2658 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2659
2660 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2661 "\t%5.2f\t%6.2f\t",
2662 csize, lsize, psize, asize, avg,
2663 (double)zb->zb_lsize / zb->zb_psize,
2664 100.0 * zb->zb_asize / tzb->zb_asize);
2665
2666 if (level == ZB_TOTAL)
2667 (void) printf("%s\n", typename);
2668 else
2669 (void) printf(" L%d %s\n",
2670 level, typename);
2671
2672 if (dump_opt['b'] >= 4) {
2673 (void) printf("psize "
2674 "(in 512-byte sectors): "
2675 "number of blocks\n");
2676 dump_histogram(zb->zb_psize_histogram,
2677 PSIZE_HISTO_SIZE, 0);
2678 }
2679 }
2680 }
2681 }
2682
2683 (void) printf("\n");
2684
2685 if (leaks)
2686 return (2);
2687
2688 if (zcb.zcb_haderrors)
2689 return (3);
2690
2691 return (0);
2692 }
2693
2694 typedef struct zdb_ddt_entry {
2695 ddt_key_t zdde_key;
2696 uint64_t zdde_ref_blocks;
2697 uint64_t zdde_ref_lsize;
2698 uint64_t zdde_ref_psize;
2699 uint64_t zdde_ref_dsize;
2700 avl_node_t zdde_node;
2701 } zdb_ddt_entry_t;
2702
2703 /* ARGSUSED */
2704 static int
2705 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2706 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2707 {
2708 avl_tree_t *t = arg;
2709 avl_index_t where;
2710 zdb_ddt_entry_t *zdde, zdde_search;
2711
2712 if (bp == NULL)
2713 return (0);
2714
2715 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2716 (void) printf("traversing objset %llu, %llu objects, "
2717 "%lu blocks so far\n",
2718 (u_longlong_t)zb->zb_objset,
2719 (u_longlong_t)bp->blk_fill,
2720 avl_numnodes(t));
2721 }
2722
2723 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2724 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2725 return (0);
2726
2727 ddt_key_fill(&zdde_search.zdde_key, bp);
2728
2729 zdde = avl_find(t, &zdde_search, &where);
2730
2731 if (zdde == NULL) {
2732 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2733 zdde->zdde_key = zdde_search.zdde_key;
2734 avl_insert(t, zdde, where);
2735 }
2736
2737 zdde->zdde_ref_blocks += 1;
2738 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2739 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2740 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2741
2742 return (0);
2743 }
2744
2745 static void
2746 dump_simulated_ddt(spa_t *spa)
2747 {
2748 avl_tree_t t;
2749 void *cookie = NULL;
2750 zdb_ddt_entry_t *zdde;
2751 ddt_histogram_t ddh_total;
2752 ddt_stat_t dds_total;
2753
2754 bzero(&ddh_total, sizeof (ddt_histogram_t));
2755 bzero(&dds_total, sizeof (ddt_stat_t));
2756
2757 avl_create(&t, ddt_entry_compare,
2758 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2759
2760 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2761
2762 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2763 zdb_ddt_add_cb, &t);
2764
2765 spa_config_exit(spa, SCL_CONFIG, FTAG);
2766
2767 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2768 ddt_stat_t dds;
2769 uint64_t refcnt = zdde->zdde_ref_blocks;
2770 ASSERT(refcnt != 0);
2771
2772 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2773 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2774 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2775 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2776
2777 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2778 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2779 dds.dds_ref_psize = zdde->zdde_ref_psize;
2780 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2781
2782 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0);
2783
2784 umem_free(zdde, sizeof (*zdde));
2785 }
2786
2787 avl_destroy(&t);
2788
2789 ddt_histogram_stat(&dds_total, &ddh_total);
2790
2791 (void) printf("Simulated DDT histogram:\n");
2792
2793 zpool_dump_ddt(&dds_total, &ddh_total);
2794
2795 dump_dedup_ratio(&dds_total);
2796 }
2797
2798 static void
2799 dump_zpool(spa_t *spa)
2800 {
2801 dsl_pool_t *dp = spa_get_dsl(spa);
2802 int rc = 0;
2803
2804 if (dump_opt['S']) {
2805 dump_simulated_ddt(spa);
2806 return;
2807 }
2808
2809 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2810 (void) printf("\nCached configuration:\n");
2811 dump_nvlist(spa->spa_config, 8);
2812 }
2813
2814 if (dump_opt['C'])
2815 dump_config(spa);
2816
2817 if (dump_opt['u'])
2818 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2819
2820 if (dump_opt['D'])
2821 dump_all_ddts(spa);
2822
2823 if (dump_opt['d'] > 2 || dump_opt['m'])
2824 dump_metaslabs(spa);
2825
2826 if (dump_opt['d'] || dump_opt['i']) {
2827 dump_dir(dp->dp_meta_objset);
2828 if (dump_opt['d'] >= 3) {
2829 dump_bpobj(&spa->spa_deferred_bpobj,
2830 "Deferred frees", 0);
2831 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2832 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2833 "Pool snapshot frees", 0);
2834 }
2835
2836 if (spa_feature_is_active(spa,
2837 SPA_FEATURE_ASYNC_DESTROY)) {
2838 dump_bptree(spa->spa_meta_objset,
2839 spa->spa_dsl_pool->dp_bptree_obj,
2840 "Pool dataset frees");
2841 }
2842 dump_dtl(spa->spa_root_vdev, 0);
2843 }
2844 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
2845 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
2846 }
2847 if (dump_opt['b'] || dump_opt['c'])
2848 rc = dump_block_stats(spa);
2849
2850 if (rc == 0)
2851 rc = verify_spacemap_refcounts(spa);
2852
2853 if (dump_opt['s'])
2854 show_pool_stats(spa);
2855
2856 if (dump_opt['h'])
2857 dump_history(spa);
2858
2859 if (rc != 0)
2860 exit(rc);
2861 }
2862
2863 #define ZDB_FLAG_CHECKSUM 0x0001
2864 #define ZDB_FLAG_DECOMPRESS 0x0002
2865 #define ZDB_FLAG_BSWAP 0x0004
2866 #define ZDB_FLAG_GBH 0x0008
2867 #define ZDB_FLAG_INDIRECT 0x0010
2868 #define ZDB_FLAG_PHYS 0x0020
2869 #define ZDB_FLAG_RAW 0x0040
2870 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
2871
2872 int flagbits[256];
2873
2874 static void
2875 zdb_print_blkptr(blkptr_t *bp, int flags)
2876 {
2877 char blkbuf[BP_SPRINTF_LEN];
2878
2879 if (flags & ZDB_FLAG_BSWAP)
2880 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
2881
2882 sprintf_blkptr(blkbuf, bp);
2883 (void) printf("%s\n", blkbuf);
2884 }
2885
2886 static void
2887 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
2888 {
2889 int i;
2890
2891 for (i = 0; i < nbps; i++)
2892 zdb_print_blkptr(&bp[i], flags);
2893 }
2894
2895 static void
2896 zdb_dump_gbh(void *buf, int flags)
2897 {
2898 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
2899 }
2900
2901 static void
2902 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
2903 {
2904 if (flags & ZDB_FLAG_BSWAP)
2905 byteswap_uint64_array(buf, size);
2906 VERIFY(write(fileno(stdout), buf, size) == size);
2907 }
2908
2909 static void
2910 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
2911 {
2912 uint64_t *d = (uint64_t *)buf;
2913 int nwords = size / sizeof (uint64_t);
2914 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
2915 int i, j;
2916 char *hdr, *c;
2917
2918
2919 if (do_bswap)
2920 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
2921 else
2922 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
2923
2924 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
2925
2926 for (i = 0; i < nwords; i += 2) {
2927 (void) printf("%06llx: %016llx %016llx ",
2928 (u_longlong_t)(i * sizeof (uint64_t)),
2929 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
2930 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
2931
2932 c = (char *)&d[i];
2933 for (j = 0; j < 2 * sizeof (uint64_t); j++)
2934 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
2935 (void) printf("\n");
2936 }
2937 }
2938
2939 /*
2940 * There are two acceptable formats:
2941 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
2942 * child[.child]* - For example: 0.1.1
2943 *
2944 * The second form can be used to specify arbitrary vdevs anywhere
2945 * in the heirarchy. For example, in a pool with a mirror of
2946 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
2947 */
2948 static vdev_t *
2949 zdb_vdev_lookup(vdev_t *vdev, char *path)
2950 {
2951 char *s, *p, *q;
2952 int i;
2953
2954 if (vdev == NULL)
2955 return (NULL);
2956
2957 /* First, assume the x.x.x.x format */
2958 i = (int)strtoul(path, &s, 10);
2959 if (s == path || (s && *s != '.' && *s != '\0'))
2960 goto name;
2961 if (i < 0 || i >= vdev->vdev_children)
2962 return (NULL);
2963
2964 vdev = vdev->vdev_child[i];
2965 if (*s == '\0')
2966 return (vdev);
2967 return (zdb_vdev_lookup(vdev, s+1));
2968
2969 name:
2970 for (i = 0; i < vdev->vdev_children; i++) {
2971 vdev_t *vc = vdev->vdev_child[i];
2972
2973 if (vc->vdev_path == NULL) {
2974 vc = zdb_vdev_lookup(vc, path);
2975 if (vc == NULL)
2976 continue;
2977 else
2978 return (vc);
2979 }
2980
2981 p = strrchr(vc->vdev_path, '/');
2982 p = p ? p + 1 : vc->vdev_path;
2983 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
2984
2985 if (strcmp(vc->vdev_path, path) == 0)
2986 return (vc);
2987 if (strcmp(p, path) == 0)
2988 return (vc);
2989 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
2990 return (vc);
2991 }
2992
2993 return (NULL);
2994 }
2995
2996 /*
2997 * Read a block from a pool and print it out. The syntax of the
2998 * block descriptor is:
2999 *
3000 * pool:vdev_specifier:offset:size[:flags]
3001 *
3002 * pool - The name of the pool you wish to read from
3003 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3004 * offset - offset, in hex, in bytes
3005 * size - Amount of data to read, in hex, in bytes
3006 * flags - A string of characters specifying options
3007 * b: Decode a blkptr at given offset within block
3008 * *c: Calculate and display checksums
3009 * d: Decompress data before dumping
3010 * e: Byteswap data before dumping
3011 * g: Display data as a gang block header
3012 * i: Display as an indirect block
3013 * p: Do I/O to physical offset
3014 * r: Dump raw data to stdout
3015 *
3016 * * = not yet implemented
3017 */
3018 static void
3019 zdb_read_block(char *thing, spa_t *spa)
3020 {
3021 blkptr_t blk, *bp = &blk;
3022 dva_t *dva = bp->blk_dva;
3023 int flags = 0;
3024 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3025 zio_t *zio;
3026 vdev_t *vd;
3027 void *pbuf, *lbuf, *buf;
3028 char *s, *p, *dup, *vdev, *flagstr;
3029 int i, error;
3030
3031 dup = strdup(thing);
3032 s = strtok(dup, ":");
3033 vdev = s ? s : "";
3034 s = strtok(NULL, ":");
3035 offset = strtoull(s ? s : "", NULL, 16);
3036 s = strtok(NULL, ":");
3037 size = strtoull(s ? s : "", NULL, 16);
3038 s = strtok(NULL, ":");
3039 flagstr = s ? s : "";
3040
3041 s = NULL;
3042 if (size == 0)
3043 s = "size must not be zero";
3044 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3045 s = "size must be a multiple of sector size";
3046 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3047 s = "offset must be a multiple of sector size";
3048 if (s) {
3049 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3050 free(dup);
3051 return;
3052 }
3053
3054 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3055 for (i = 0; flagstr[i]; i++) {
3056 int bit = flagbits[(uchar_t)flagstr[i]];
3057
3058 if (bit == 0) {
3059 (void) printf("***Invalid flag: %c\n",
3060 flagstr[i]);
3061 continue;
3062 }
3063 flags |= bit;
3064
3065 /* If it's not something with an argument, keep going */
3066 if ((bit & (ZDB_FLAG_CHECKSUM |
3067 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3068 continue;
3069
3070 p = &flagstr[i + 1];
3071 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3072 blkptr_offset = strtoull(p, &p, 16);
3073 if (*p != ':' && *p != '\0') {
3074 (void) printf("***Invalid flag arg: '%s'\n", s);
3075 free(dup);
3076 return;
3077 }
3078 }
3079 }
3080
3081 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3082 if (vd == NULL) {
3083 (void) printf("***Invalid vdev: %s\n", vdev);
3084 free(dup);
3085 return;
3086 } else {
3087 if (vd->vdev_path)
3088 (void) fprintf(stderr, "Found vdev: %s\n",
3089 vd->vdev_path);
3090 else
3091 (void) fprintf(stderr, "Found vdev type: %s\n",
3092 vd->vdev_ops->vdev_op_type);
3093 }
3094
3095 psize = size;
3096 lsize = size;
3097
3098 pbuf = umem_alloc_aligned(SPA_MAXBLOCKSIZE, 512, UMEM_NOFAIL);
3099 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3100
3101 BP_ZERO(bp);
3102
3103 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3104 DVA_SET_OFFSET(&dva[0], offset);
3105 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3106 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3107
3108 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3109
3110 BP_SET_LSIZE(bp, lsize);
3111 BP_SET_PSIZE(bp, psize);
3112 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3113 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3114 BP_SET_TYPE(bp, DMU_OT_NONE);
3115 BP_SET_LEVEL(bp, 0);
3116 BP_SET_DEDUP(bp, 0);
3117 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3118
3119 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3120 zio = zio_root(spa, NULL, NULL, 0);
3121
3122 if (vd == vd->vdev_top) {
3123 /*
3124 * Treat this as a normal block read.
3125 */
3126 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3127 ZIO_PRIORITY_SYNC_READ,
3128 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3129 } else {
3130 /*
3131 * Treat this as a vdev child I/O.
3132 */
3133 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3134 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3135 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3136 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3137 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3138 }
3139
3140 error = zio_wait(zio);
3141 spa_config_exit(spa, SCL_STATE, FTAG);
3142
3143 if (error) {
3144 (void) printf("Read of %s failed, error: %d\n", thing, error);
3145 goto out;
3146 }
3147
3148 if (flags & ZDB_FLAG_DECOMPRESS) {
3149 /*
3150 * We don't know how the data was compressed, so just try
3151 * every decompress function at every inflated blocksize.
3152 */
3153 enum zio_compress c;
3154 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3155 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3156
3157 bcopy(pbuf, pbuf2, psize);
3158
3159 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3160 SPA_MAXBLOCKSIZE - psize) == 0);
3161
3162 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3163 SPA_MAXBLOCKSIZE - psize) == 0);
3164
3165 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3166 lsize -= SPA_MINBLOCKSIZE) {
3167 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3168 if (zio_decompress_data(c, pbuf, lbuf,
3169 psize, lsize) == 0 &&
3170 zio_decompress_data(c, pbuf2, lbuf2,
3171 psize, lsize) == 0 &&
3172 bcmp(lbuf, lbuf2, lsize) == 0)
3173 break;
3174 }
3175 if (c != ZIO_COMPRESS_FUNCTIONS)
3176 break;
3177 lsize -= SPA_MINBLOCKSIZE;
3178 }
3179
3180 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3181 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3182
3183 if (lsize <= psize) {
3184 (void) printf("Decompress of %s failed\n", thing);
3185 goto out;
3186 }
3187 buf = lbuf;
3188 size = lsize;
3189 } else {
3190 buf = pbuf;
3191 size = psize;
3192 }
3193
3194 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3195 zdb_print_blkptr((blkptr_t *)(void *)
3196 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3197 else if (flags & ZDB_FLAG_RAW)
3198 zdb_dump_block_raw(buf, size, flags);
3199 else if (flags & ZDB_FLAG_INDIRECT)
3200 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3201 flags);
3202 else if (flags & ZDB_FLAG_GBH)
3203 zdb_dump_gbh(buf, flags);
3204 else
3205 zdb_dump_block(thing, buf, size, flags);
3206
3207 out:
3208 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3209 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3210 free(dup);
3211 }
3212
3213 static boolean_t
3214 pool_match(nvlist_t *cfg, char *tgt)
3215 {
3216 uint64_t v, guid = strtoull(tgt, NULL, 0);
3217 char *s;
3218
3219 if (guid != 0) {
3220 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3221 return (v == guid);
3222 } else {
3223 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3224 return (strcmp(s, tgt) == 0);
3225 }
3226 return (B_FALSE);
3227 }
3228
3229 static char *
3230 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3231 {
3232 nvlist_t *pools;
3233 nvlist_t *match = NULL;
3234 char *name = NULL;
3235 char *sepp = NULL;
3236 char sep = 0;
3237 int count = 0;
3238 importargs_t args = { 0 };
3239
3240 args.paths = dirc;
3241 args.path = dirv;
3242 args.can_be_active = B_TRUE;
3243
3244 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3245 sep = *sepp;
3246 *sepp = '\0';
3247 }
3248
3249 pools = zpool_search_import(g_zfs, &args);
3250
3251 if (pools != NULL) {
3252 nvpair_t *elem = NULL;
3253 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3254 verify(nvpair_value_nvlist(elem, configp) == 0);
3255 if (pool_match(*configp, *target)) {
3256 count++;
3257 if (match != NULL) {
3258 /* print previously found config */
3259 if (name != NULL) {
3260 (void) printf("%s\n", name);
3261 dump_nvlist(match, 8);
3262 name = NULL;
3263 }
3264 (void) printf("%s\n",
3265 nvpair_name(elem));
3266 dump_nvlist(*configp, 8);
3267 } else {
3268 match = *configp;
3269 name = nvpair_name(elem);
3270 }
3271 }
3272 }
3273 }
3274 if (count > 1)
3275 (void) fatal("\tMatched %d pools - use pool GUID "
3276 "instead of pool name or \n"
3277 "\tpool name part of a dataset name to select pool", count);
3278
3279 if (sepp)
3280 *sepp = sep;
3281 /*
3282 * If pool GUID was specified for pool id, replace it with pool name
3283 */
3284 if (name && (strstr(*target, name) != *target)) {
3285 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3286
3287 *target = umem_alloc(sz, UMEM_NOFAIL);
3288 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3289 }
3290
3291 *configp = name ? match : NULL;
3292
3293 return (name);
3294 }
3295
3296 int
3297 main(int argc, char **argv)
3298 {
3299 int i, c;
3300 struct rlimit rl = { 1024, 1024 };
3301 spa_t *spa = NULL;
3302 objset_t *os = NULL;
3303 int dump_all = 1;
3304 int verbose = 0;
3305 int error = 0;
3306 char **searchdirs = NULL;
3307 int nsearch = 0;
3308 char *target;
3309 nvlist_t *policy = NULL;
3310 uint64_t max_txg = UINT64_MAX;
3311 int flags = ZFS_IMPORT_MISSING_LOG;
3312 int rewind = ZPOOL_NEVER_REWIND;
3313 char *spa_config_path_env;
3314 const char *opts = "bcdhilmM:suCDRSAFLVXevp:t:U:P";
3315
3316 (void) setrlimit(RLIMIT_NOFILE, &rl);
3317 (void) enable_extended_FILE_stdio(-1, -1);
3318
3319 dprintf_setup(&argc, argv);
3320
3321 /*
3322 * If there is an environment variable SPA_CONFIG_PATH it overrides
3323 * default spa_config_path setting. If -U flag is specified it will
3324 * override this environment variable settings once again.
3325 */
3326 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3327 if (spa_config_path_env != NULL)
3328 spa_config_path = spa_config_path_env;
3329
3330 while ((c = getopt(argc, argv, opts)) != -1) {
3331 switch (c) {
3332 case 'b':
3333 case 'c':
3334 case 'd':
3335 case 'h':
3336 case 'i':
3337 case 'l':
3338 case 'm':
3339 case 's':
3340 case 'u':
3341 case 'C':
3342 case 'D':
3343 case 'R':
3344 case 'S':
3345 dump_opt[c]++;
3346 dump_all = 0;
3347 break;
3348 case 'A':
3349 case 'F':
3350 case 'L':
3351 case 'X':
3352 case 'e':
3353 case 'P':
3354 dump_opt[c]++;
3355 break;
3356 case 'V':
3357 flags = ZFS_IMPORT_VERBATIM;
3358 break;
3359 case 'v':
3360 verbose++;
3361 break;
3362 case 'M':
3363 max_inflight = strtoull(optarg, NULL, 0);
3364 if (max_inflight == 0) {
3365 (void) fprintf(stderr, "maximum number "
3366 "of inflight I/Os must be greater "
3367 "than 0\n");
3368 usage();
3369 }
3370 break;
3371 case 'p':
3372 if (searchdirs == NULL) {
3373 searchdirs = umem_alloc(sizeof (char *),
3374 UMEM_NOFAIL);
3375 } else {
3376 char **tmp = umem_alloc((nsearch + 1) *
3377 sizeof (char *), UMEM_NOFAIL);
3378 bcopy(searchdirs, tmp, nsearch *
3379 sizeof (char *));
3380 umem_free(searchdirs,
3381 nsearch * sizeof (char *));
3382 searchdirs = tmp;
3383 }
3384 searchdirs[nsearch++] = optarg;
3385 break;
3386 case 't':
3387 max_txg = strtoull(optarg, NULL, 0);
3388 if (max_txg < TXG_INITIAL) {
3389 (void) fprintf(stderr, "incorrect txg "
3390 "specified: %s\n", optarg);
3391 usage();
3392 }
3393 break;
3394 case 'U':
3395 spa_config_path = optarg;
3396 break;
3397 default:
3398 usage();
3399 break;
3400 }
3401 }
3402
3403 if (!dump_opt['e'] && searchdirs != NULL) {
3404 (void) fprintf(stderr, "-p option requires use of -e\n");
3405 usage();
3406 }
3407
3408 kernel_init(FREAD);
3409 if ((g_zfs = libzfs_init()) == NULL)
3410 return (1);
3411
3412 if (dump_all)
3413 verbose = MAX(verbose, 1);
3414
3415 for (c = 0; c < 256; c++) {
3416 if (dump_all && !strchr("elAFLRSXP", c))
3417 dump_opt[c] = 1;
3418 if (dump_opt[c])
3419 dump_opt[c] += verbose;
3420 }
3421
3422 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3423 zfs_recover = (dump_opt['A'] > 1);
3424
3425 argc -= optind;
3426 argv += optind;
3427
3428 if (argc < 2 && dump_opt['R'])
3429 usage();
3430 if (argc < 1) {
3431 if (!dump_opt['e'] && dump_opt['C']) {
3432 dump_cachefile(spa_config_path);
3433 return (0);
3434 }
3435 usage();
3436 }
3437
3438 if (dump_opt['l']) {
3439 dump_label(argv[0]);
3440 return (0);
3441 }
3442
3443 if (dump_opt['X'] || dump_opt['F'])
3444 rewind = ZPOOL_DO_REWIND |
3445 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3446
3447 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3448 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3449 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3450 fatal("internal error: %s", strerror(ENOMEM));
3451
3452 error = 0;
3453 target = argv[0];
3454
3455 if (dump_opt['e']) {
3456 nvlist_t *cfg = NULL;
3457 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3458
3459 error = ENOENT;
3460 if (name) {
3461 if (dump_opt['C'] > 1) {
3462 (void) printf("\nConfiguration for import:\n");
3463 dump_nvlist(cfg, 8);
3464 }
3465 if (nvlist_add_nvlist(cfg,
3466 ZPOOL_REWIND_POLICY, policy) != 0) {
3467 fatal("can't open '%s': %s",
3468 target, strerror(ENOMEM));
3469 }
3470 error = spa_import(name, cfg, NULL, flags);
3471 }
3472 }
3473
3474 if (error == 0) {
3475 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3476 error = spa_open_rewind(target, &spa, FTAG, policy,
3477 NULL);
3478 if (error) {
3479 /*
3480 * If we're missing the log device then
3481 * try opening the pool after clearing the
3482 * log state.
3483 */
3484 mutex_enter(&spa_namespace_lock);
3485 if ((spa = spa_lookup(target)) != NULL &&
3486 spa->spa_log_state == SPA_LOG_MISSING) {
3487 spa->spa_log_state = SPA_LOG_CLEAR;
3488 error = 0;
3489 }
3490 mutex_exit(&spa_namespace_lock);
3491
3492 if (!error) {
3493 error = spa_open_rewind(target, &spa,
3494 FTAG, policy, NULL);
3495 }
3496 }
3497 } else {
3498 error = dmu_objset_own(target, DMU_OST_ANY,
3499 B_TRUE, FTAG, &os);
3500 }
3501 }
3502 nvlist_free(policy);
3503
3504 if (error)
3505 fatal("can't open '%s': %s", target, strerror(error));
3506
3507 argv++;
3508 argc--;
3509 if (!dump_opt['R']) {
3510 if (argc > 0) {
3511 zopt_objects = argc;
3512 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3513 for (i = 0; i < zopt_objects; i++) {
3514 errno = 0;
3515 zopt_object[i] = strtoull(argv[i], NULL, 0);
3516 if (zopt_object[i] == 0 && errno != 0)
3517 fatal("bad number %s: %s",
3518 argv[i], strerror(errno));
3519 }
3520 }
3521 if (os != NULL) {
3522 dump_dir(os);
3523 } else if (zopt_objects > 0 && !dump_opt['m']) {
3524 dump_dir(spa->spa_meta_objset);
3525 } else {
3526 dump_zpool(spa);
3527 }
3528 } else {
3529 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3530 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3531 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3532 flagbits['e'] = ZDB_FLAG_BSWAP;
3533 flagbits['g'] = ZDB_FLAG_GBH;
3534 flagbits['i'] = ZDB_FLAG_INDIRECT;
3535 flagbits['p'] = ZDB_FLAG_PHYS;
3536 flagbits['r'] = ZDB_FLAG_RAW;
3537
3538 for (i = 0; i < argc; i++)
3539 zdb_read_block(argv[i], spa);
3540 }
3541
3542 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3543
3544 fuid_table_destroy();
3545 sa_loaded = B_FALSE;
3546
3547 libzfs_fini(g_zfs);
3548 kernel_fini();
3549
3550 return (0);
3551 }
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