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4757 ZFS embedded-data block pointers ("zero block compression")
[unleashed.git] / usr / src / cmd / zdb / zdb.c
blob48dda79364330f3292c8b9e27d8acaac3099e391
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
25 */
26
27 #include <stdio.h>
28 #include <unistd.h>
29 #include <stdio_ext.h>
30 #include <stdlib.h>
31 #include <ctype.h>
32 #include <sys/zfs_context.h>
33 #include <sys/spa.h>
34 #include <sys/spa_impl.h>
35 #include <sys/dmu.h>
36 #include <sys/zap.h>
37 #include <sys/fs/zfs.h>
38 #include <sys/zfs_znode.h>
39 #include <sys/zfs_sa.h>
40 #include <sys/sa.h>
41 #include <sys/sa_impl.h>
42 #include <sys/vdev.h>
43 #include <sys/vdev_impl.h>
44 #include <sys/metaslab_impl.h>
45 #include <sys/dmu_objset.h>
46 #include <sys/dsl_dir.h>
47 #include <sys/dsl_dataset.h>
48 #include <sys/dsl_pool.h>
49 #include <sys/dbuf.h>
50 #include <sys/zil.h>
51 #include <sys/zil_impl.h>
52 #include <sys/stat.h>
53 #include <sys/resource.h>
54 #include <sys/dmu_traverse.h>
55 #include <sys/zio_checksum.h>
56 #include <sys/zio_compress.h>
57 #include <sys/zfs_fuid.h>
58 #include <sys/arc.h>
59 #include <sys/ddt.h>
60 #include <sys/zfeature.h>
61 #include <zfs_comutil.h>
62 #undef ZFS_MAXNAMELEN
63 #undef verify
64 #include <libzfs.h>
65
66 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
67 zio_compress_table[(idx)].ci_name : "UNKNOWN")
68 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
69 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
70 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
76
77 #ifndef lint
78 extern int zfs_recover;
79 #else
80 int zfs_recover;
81 #endif
82
83 const char cmdname[] = "zdb";
84 uint8_t dump_opt[256];
85
86 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
87
88 extern void dump_intent_log(zilog_t *);
89 uint64_t *zopt_object = NULL;
90 int zopt_objects = 0;
91 libzfs_handle_t *g_zfs;
92 uint64_t max_inflight = 200;
93
94 /*
95 * These libumem hooks provide a reasonable set of defaults for the allocator's
96 * debugging facilities.
97 */
98 const char *
99 _umem_debug_init()
100 {
101 return ("default,verbose"); /* $UMEM_DEBUG setting */
102 }
103
104 const char *
105 _umem_logging_init(void)
106 {
107 return ("fail,contents"); /* $UMEM_LOGGING setting */
108 }
109
110 static void
111 usage(void)
112 {
113 (void) fprintf(stderr,
114 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
115 "[-U config] [-M inflight I/Os] poolname [object...]\n"
116 " %s [-divPA] [-e -p path...] [-U config] dataset "
117 "[object...]\n"
118 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
119 "poolname [vdev [metaslab...]]\n"
120 " %s -R [-A] [-e [-p path...]] poolname "
121 "vdev:offset:size[:flags]\n"
122 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n"
123 " %s -l [-uA] device\n"
124 " %s -C [-A] [-U config]\n\n",
125 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
126
127 (void) fprintf(stderr, " Dataset name must include at least one "
128 "separator character '/' or '@'\n");
129 (void) fprintf(stderr, " If dataset name is specified, only that "
130 "dataset is dumped\n");
131 (void) fprintf(stderr, " If object numbers are specified, only "
132 "those objects are dumped\n\n");
133 (void) fprintf(stderr, " Options to control amount of output:\n");
134 (void) fprintf(stderr, " -u uberblock\n");
135 (void) fprintf(stderr, " -d dataset(s)\n");
136 (void) fprintf(stderr, " -i intent logs\n");
137 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
138 (void) fprintf(stderr, " -h pool history\n");
139 (void) fprintf(stderr, " -b block statistics\n");
140 (void) fprintf(stderr, " -m metaslabs\n");
141 (void) fprintf(stderr, " -c checksum all metadata (twice for "
142 "all data) blocks\n");
143 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
144 (void) fprintf(stderr, " -D dedup statistics\n");
145 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
146 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
147 (void) fprintf(stderr, " -l dump label contents\n");
148 (void) fprintf(stderr, " -L disable leak tracking (do not "
149 "load spacemaps)\n");
150 (void) fprintf(stderr, " -R read and display block from a "
151 "device\n\n");
152 (void) fprintf(stderr, " Below options are intended for use "
153 "with other options (except -l):\n");
154 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
155 "panic recovery (-AA) or both (-AAA)\n");
156 (void) fprintf(stderr, " -F attempt automatic rewind within "
157 "safe range of transaction groups\n");
158 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
159 "cachefile\n");
160 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
161 "work with dataset)\n");
162 (void) fprintf(stderr, " -e pool is exported/destroyed/"
163 "has altroot/not in a cachefile\n");
164 (void) fprintf(stderr, " -p <path> -- use one or more with "
165 "-e to specify path to vdev dir\n");
166 (void) fprintf(stderr, " -P print numbers in parseable form\n");
167 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
168 "searching for uberblocks\n");
169 (void) fprintf(stderr, " -M <number of inflight I/Os> -- "
170 "specify the maximum number of checksumming I/Os [default is 200]");
171 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
172 "to make only that option verbose\n");
173 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
174 exit(1);
175 }
176
177 /*
178 * Called for usage errors that are discovered after a call to spa_open(),
179 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
180 */
181
182 static void
183 fatal(const char *fmt, ...)
184 {
185 va_list ap;
186
187 va_start(ap, fmt);
188 (void) fprintf(stderr, "%s: ", cmdname);
189 (void) vfprintf(stderr, fmt, ap);
190 va_end(ap);
191 (void) fprintf(stderr, "\n");
192
193 exit(1);
194 }
195
196 /* ARGSUSED */
197 static void
198 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
199 {
200 nvlist_t *nv;
201 size_t nvsize = *(uint64_t *)data;
202 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
203
204 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
205
206 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
207
208 umem_free(packed, nvsize);
209
210 dump_nvlist(nv, 8);
211
212 nvlist_free(nv);
213 }
214
215 /* ARGSUSED */
216 static void
217 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
218 {
219 spa_history_phys_t *shp = data;
220
221 if (shp == NULL)
222 return;
223
224 (void) printf("\t\tpool_create_len = %llu\n",
225 (u_longlong_t)shp->sh_pool_create_len);
226 (void) printf("\t\tphys_max_off = %llu\n",
227 (u_longlong_t)shp->sh_phys_max_off);
228 (void) printf("\t\tbof = %llu\n",
229 (u_longlong_t)shp->sh_bof);
230 (void) printf("\t\teof = %llu\n",
231 (u_longlong_t)shp->sh_eof);
232 (void) printf("\t\trecords_lost = %llu\n",
233 (u_longlong_t)shp->sh_records_lost);
234 }
235
236 static void
237 zdb_nicenum(uint64_t num, char *buf)
238 {
239 if (dump_opt['P'])
240 (void) sprintf(buf, "%llu", (longlong_t)num);
241 else
242 nicenum(num, buf);
243 }
244
245 const char histo_stars[] = "****************************************";
246 const int histo_width = sizeof (histo_stars) - 1;
247
248 static void
249 dump_histogram(const uint64_t *histo, int size, int offset)
250 {
251 int i;
252 int minidx = size - 1;
253 int maxidx = 0;
254 uint64_t max = 0;
255
256 for (i = 0; i < size; i++) {
257 if (histo[i] > max)
258 max = histo[i];
259 if (histo[i] > 0 && i > maxidx)
260 maxidx = i;
261 if (histo[i] > 0 && i < minidx)
262 minidx = i;
263 }
264
265 if (max < histo_width)
266 max = histo_width;
267
268 for (i = minidx; i <= maxidx; i++) {
269 (void) printf("\t\t\t%3u: %6llu %s\n",
270 i + offset, (u_longlong_t)histo[i],
271 &histo_stars[(max - histo[i]) * histo_width / max]);
272 }
273 }
274
275 static void
276 dump_zap_stats(objset_t *os, uint64_t object)
277 {
278 int error;
279 zap_stats_t zs;
280
281 error = zap_get_stats(os, object, &zs);
282 if (error)
283 return;
284
285 if (zs.zs_ptrtbl_len == 0) {
286 ASSERT(zs.zs_num_blocks == 1);
287 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
288 (u_longlong_t)zs.zs_blocksize,
289 (u_longlong_t)zs.zs_num_entries);
290 return;
291 }
292
293 (void) printf("\tFat ZAP stats:\n");
294
295 (void) printf("\t\tPointer table:\n");
296 (void) printf("\t\t\t%llu elements\n",
297 (u_longlong_t)zs.zs_ptrtbl_len);
298 (void) printf("\t\t\tzt_blk: %llu\n",
299 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
300 (void) printf("\t\t\tzt_numblks: %llu\n",
301 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
302 (void) printf("\t\t\tzt_shift: %llu\n",
303 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
304 (void) printf("\t\t\tzt_blks_copied: %llu\n",
305 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
306 (void) printf("\t\t\tzt_nextblk: %llu\n",
307 (u_longlong_t)zs.zs_ptrtbl_nextblk);
308
309 (void) printf("\t\tZAP entries: %llu\n",
310 (u_longlong_t)zs.zs_num_entries);
311 (void) printf("\t\tLeaf blocks: %llu\n",
312 (u_longlong_t)zs.zs_num_leafs);
313 (void) printf("\t\tTotal blocks: %llu\n",
314 (u_longlong_t)zs.zs_num_blocks);
315 (void) printf("\t\tzap_block_type: 0x%llx\n",
316 (u_longlong_t)zs.zs_block_type);
317 (void) printf("\t\tzap_magic: 0x%llx\n",
318 (u_longlong_t)zs.zs_magic);
319 (void) printf("\t\tzap_salt: 0x%llx\n",
320 (u_longlong_t)zs.zs_salt);
321
322 (void) printf("\t\tLeafs with 2^n pointers:\n");
323 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
324
325 (void) printf("\t\tBlocks with n*5 entries:\n");
326 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
327
328 (void) printf("\t\tBlocks n/10 full:\n");
329 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
330
331 (void) printf("\t\tEntries with n chunks:\n");
332 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
333
334 (void) printf("\t\tBuckets with n entries:\n");
335 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
336 }
337
338 /*ARGSUSED*/
339 static void
340 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
341 {
342 }
343
344 /*ARGSUSED*/
345 static void
346 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
347 {
348 (void) printf("\tUNKNOWN OBJECT TYPE\n");
349 }
350
351 /*ARGSUSED*/
352 void
353 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
354 {
355 }
356
357 /*ARGSUSED*/
358 static void
359 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
360 {
361 }
362
363 /*ARGSUSED*/
364 static void
365 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
366 {
367 zap_cursor_t zc;
368 zap_attribute_t attr;
369 void *prop;
370 int i;
371
372 dump_zap_stats(os, object);
373 (void) printf("\n");
374
375 for (zap_cursor_init(&zc, os, object);
376 zap_cursor_retrieve(&zc, &attr) == 0;
377 zap_cursor_advance(&zc)) {
378 (void) printf("\t\t%s = ", attr.za_name);
379 if (attr.za_num_integers == 0) {
380 (void) printf("\n");
381 continue;
382 }
383 prop = umem_zalloc(attr.za_num_integers *
384 attr.za_integer_length, UMEM_NOFAIL);
385 (void) zap_lookup(os, object, attr.za_name,
386 attr.za_integer_length, attr.za_num_integers, prop);
387 if (attr.za_integer_length == 1) {
388 (void) printf("%s", (char *)prop);
389 } else {
390 for (i = 0; i < attr.za_num_integers; i++) {
391 switch (attr.za_integer_length) {
392 case 2:
393 (void) printf("%u ",
394 ((uint16_t *)prop)[i]);
395 break;
396 case 4:
397 (void) printf("%u ",
398 ((uint32_t *)prop)[i]);
399 break;
400 case 8:
401 (void) printf("%lld ",
402 (u_longlong_t)((int64_t *)prop)[i]);
403 break;
404 }
405 }
406 }
407 (void) printf("\n");
408 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
409 }
410 zap_cursor_fini(&zc);
411 }
412
413 /*ARGSUSED*/
414 static void
415 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
416 {
417 dump_zap_stats(os, object);
418 /* contents are printed elsewhere, properly decoded */
419 }
420
421 /*ARGSUSED*/
422 static void
423 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
424 {
425 zap_cursor_t zc;
426 zap_attribute_t attr;
427
428 dump_zap_stats(os, object);
429 (void) printf("\n");
430
431 for (zap_cursor_init(&zc, os, object);
432 zap_cursor_retrieve(&zc, &attr) == 0;
433 zap_cursor_advance(&zc)) {
434 (void) printf("\t\t%s = ", attr.za_name);
435 if (attr.za_num_integers == 0) {
436 (void) printf("\n");
437 continue;
438 }
439 (void) printf(" %llx : [%d:%d:%d]\n",
440 (u_longlong_t)attr.za_first_integer,
441 (int)ATTR_LENGTH(attr.za_first_integer),
442 (int)ATTR_BSWAP(attr.za_first_integer),
443 (int)ATTR_NUM(attr.za_first_integer));
444 }
445 zap_cursor_fini(&zc);
446 }
447
448 /*ARGSUSED*/
449 static void
450 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
451 {
452 zap_cursor_t zc;
453 zap_attribute_t attr;
454 uint16_t *layout_attrs;
455 int i;
456
457 dump_zap_stats(os, object);
458 (void) printf("\n");
459
460 for (zap_cursor_init(&zc, os, object);
461 zap_cursor_retrieve(&zc, &attr) == 0;
462 zap_cursor_advance(&zc)) {
463 (void) printf("\t\t%s = [", attr.za_name);
464 if (attr.za_num_integers == 0) {
465 (void) printf("\n");
466 continue;
467 }
468
469 VERIFY(attr.za_integer_length == 2);
470 layout_attrs = umem_zalloc(attr.za_num_integers *
471 attr.za_integer_length, UMEM_NOFAIL);
472
473 VERIFY(zap_lookup(os, object, attr.za_name,
474 attr.za_integer_length,
475 attr.za_num_integers, layout_attrs) == 0);
476
477 for (i = 0; i != attr.za_num_integers; i++)
478 (void) printf(" %d ", (int)layout_attrs[i]);
479 (void) printf("]\n");
480 umem_free(layout_attrs,
481 attr.za_num_integers * attr.za_integer_length);
482 }
483 zap_cursor_fini(&zc);
484 }
485
486 /*ARGSUSED*/
487 static void
488 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
489 {
490 zap_cursor_t zc;
491 zap_attribute_t attr;
492 const char *typenames[] = {
493 /* 0 */ "not specified",
494 /* 1 */ "FIFO",
495 /* 2 */ "Character Device",
496 /* 3 */ "3 (invalid)",
497 /* 4 */ "Directory",
498 /* 5 */ "5 (invalid)",
499 /* 6 */ "Block Device",
500 /* 7 */ "7 (invalid)",
501 /* 8 */ "Regular File",
502 /* 9 */ "9 (invalid)",
503 /* 10 */ "Symbolic Link",
504 /* 11 */ "11 (invalid)",
505 /* 12 */ "Socket",
506 /* 13 */ "Door",
507 /* 14 */ "Event Port",
508 /* 15 */ "15 (invalid)",
509 };
510
511 dump_zap_stats(os, object);
512 (void) printf("\n");
513
514 for (zap_cursor_init(&zc, os, object);
515 zap_cursor_retrieve(&zc, &attr) == 0;
516 zap_cursor_advance(&zc)) {
517 (void) printf("\t\t%s = %lld (type: %s)\n",
518 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
519 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
520 }
521 zap_cursor_fini(&zc);
522 }
523
524 int
525 get_dtl_refcount(vdev_t *vd)
526 {
527 int refcount = 0;
528
529 if (vd->vdev_ops->vdev_op_leaf) {
530 space_map_t *sm = vd->vdev_dtl_sm;
531
532 if (sm != NULL &&
533 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
534 return (1);
535 return (0);
536 }
537
538 for (int c = 0; c < vd->vdev_children; c++)
539 refcount += get_dtl_refcount(vd->vdev_child[c]);
540 return (refcount);
541 }
542
543 int
544 get_metaslab_refcount(vdev_t *vd)
545 {
546 int refcount = 0;
547
548 if (vd->vdev_top == vd) {
549 for (int m = 0; m < vd->vdev_ms_count; m++) {
550 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
551
552 if (sm != NULL &&
553 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
554 refcount++;
555 }
556 }
557 for (int c = 0; c < vd->vdev_children; c++)
558 refcount += get_metaslab_refcount(vd->vdev_child[c]);
559
560 return (refcount);
561 }
562
563 static int
564 verify_spacemap_refcounts(spa_t *spa)
565 {
566 uint64_t expected_refcount = 0;
567 uint64_t actual_refcount;
568
569 (void) feature_get_refcount(spa,
570 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
571 &expected_refcount);
572 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
573 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
574
575 if (expected_refcount != actual_refcount) {
576 (void) printf("space map refcount mismatch: expected %lld != "
577 "actual %lld\n",
578 (longlong_t)expected_refcount,
579 (longlong_t)actual_refcount);
580 return (2);
581 }
582 return (0);
583 }
584
585 static void
586 dump_spacemap(objset_t *os, space_map_t *sm)
587 {
588 uint64_t alloc, offset, entry;
589 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
590 "INVALID", "INVALID", "INVALID", "INVALID" };
591
592 if (sm == NULL)
593 return;
594
595 /*
596 * Print out the freelist entries in both encoded and decoded form.
597 */
598 alloc = 0;
599 for (offset = 0; offset < space_map_length(sm);
600 offset += sizeof (entry)) {
601 uint8_t mapshift = sm->sm_shift;
602
603 VERIFY0(dmu_read(os, space_map_object(sm), offset,
604 sizeof (entry), &entry, DMU_READ_PREFETCH));
605 if (SM_DEBUG_DECODE(entry)) {
606
607 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
608 (u_longlong_t)(offset / sizeof (entry)),
609 ddata[SM_DEBUG_ACTION_DECODE(entry)],
610 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
611 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
612 } else {
613 (void) printf("\t [%6llu] %c range:"
614 " %010llx-%010llx size: %06llx\n",
615 (u_longlong_t)(offset / sizeof (entry)),
616 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
617 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
618 mapshift) + sm->sm_start),
619 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
620 mapshift) + sm->sm_start +
621 (SM_RUN_DECODE(entry) << mapshift)),
622 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
623 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
624 alloc += SM_RUN_DECODE(entry) << mapshift;
625 else
626 alloc -= SM_RUN_DECODE(entry) << mapshift;
627 }
628 }
629 if (alloc != space_map_allocated(sm)) {
630 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
631 "with space map summary (%llu)\n",
632 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
633 }
634 }
635
636 static void
637 dump_metaslab_stats(metaslab_t *msp)
638 {
639 char maxbuf[32];
640 range_tree_t *rt = msp->ms_tree;
641 avl_tree_t *t = &msp->ms_size_tree;
642 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
643
644 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
645
646 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
647 "segments", avl_numnodes(t), "maxsize", maxbuf,
648 "freepct", free_pct);
649 (void) printf("\tIn-memory histogram:\n");
650 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
651 }
652
653 static void
654 dump_metaslab(metaslab_t *msp)
655 {
656 vdev_t *vd = msp->ms_group->mg_vd;
657 spa_t *spa = vd->vdev_spa;
658 space_map_t *sm = msp->ms_sm;
659 char freebuf[32];
660
661 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
662
663 (void) printf(
664 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
665 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
666 (u_longlong_t)space_map_object(sm), freebuf);
667
668 if (dump_opt['m'] > 2 && !dump_opt['L']) {
669 mutex_enter(&msp->ms_lock);
670 metaslab_load_wait(msp);
671 if (!msp->ms_loaded) {
672 VERIFY0(metaslab_load(msp));
673 range_tree_stat_verify(msp->ms_tree);
674 }
675 dump_metaslab_stats(msp);
676 metaslab_unload(msp);
677 mutex_exit(&msp->ms_lock);
678 }
679
680 if (dump_opt['m'] > 1 && sm != NULL &&
681 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
682 /*
683 * The space map histogram represents free space in chunks
684 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
685 */
686 (void) printf("\tOn-disk histogram:\n");
687 dump_histogram(sm->sm_phys->smp_histogram,
688 SPACE_MAP_HISTOGRAM_SIZE(sm), sm->sm_shift);
689 }
690
691 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
692 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
693
694 mutex_enter(&msp->ms_lock);
695 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
696 mutex_exit(&msp->ms_lock);
697 }
698 }
699
700 static void
701 print_vdev_metaslab_header(vdev_t *vd)
702 {
703 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
704 (u_longlong_t)vd->vdev_id,
705 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
706 "offset", "spacemap", "free");
707 (void) printf("\t%15s %19s %15s %10s\n",
708 "---------------", "-------------------",
709 "---------------", "-------------");
710 }
711
712 static void
713 dump_metaslabs(spa_t *spa)
714 {
715 vdev_t *vd, *rvd = spa->spa_root_vdev;
716 uint64_t m, c = 0, children = rvd->vdev_children;
717
718 (void) printf("\nMetaslabs:\n");
719
720 if (!dump_opt['d'] && zopt_objects > 0) {
721 c = zopt_object[0];
722
723 if (c >= children)
724 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
725
726 if (zopt_objects > 1) {
727 vd = rvd->vdev_child[c];
728 print_vdev_metaslab_header(vd);
729
730 for (m = 1; m < zopt_objects; m++) {
731 if (zopt_object[m] < vd->vdev_ms_count)
732 dump_metaslab(
733 vd->vdev_ms[zopt_object[m]]);
734 else
735 (void) fprintf(stderr, "bad metaslab "
736 "number %llu\n",
737 (u_longlong_t)zopt_object[m]);
738 }
739 (void) printf("\n");
740 return;
741 }
742 children = c + 1;
743 }
744 for (; c < children; c++) {
745 vd = rvd->vdev_child[c];
746 print_vdev_metaslab_header(vd);
747
748 for (m = 0; m < vd->vdev_ms_count; m++)
749 dump_metaslab(vd->vdev_ms[m]);
750 (void) printf("\n");
751 }
752 }
753
754 static void
755 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
756 {
757 const ddt_phys_t *ddp = dde->dde_phys;
758 const ddt_key_t *ddk = &dde->dde_key;
759 char *types[4] = { "ditto", "single", "double", "triple" };
760 char blkbuf[BP_SPRINTF_LEN];
761 blkptr_t blk;
762
763 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
764 if (ddp->ddp_phys_birth == 0)
765 continue;
766 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
767 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
768 (void) printf("index %llx refcnt %llu %s %s\n",
769 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
770 types[p], blkbuf);
771 }
772 }
773
774 static void
775 dump_dedup_ratio(const ddt_stat_t *dds)
776 {
777 double rL, rP, rD, D, dedup, compress, copies;
778
779 if (dds->dds_blocks == 0)
780 return;
781
782 rL = (double)dds->dds_ref_lsize;
783 rP = (double)dds->dds_ref_psize;
784 rD = (double)dds->dds_ref_dsize;
785 D = (double)dds->dds_dsize;
786
787 dedup = rD / D;
788 compress = rL / rP;
789 copies = rD / rP;
790
791 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
792 "dedup * compress / copies = %.2f\n\n",
793 dedup, compress, copies, dedup * compress / copies);
794 }
795
796 static void
797 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
798 {
799 char name[DDT_NAMELEN];
800 ddt_entry_t dde;
801 uint64_t walk = 0;
802 dmu_object_info_t doi;
803 uint64_t count, dspace, mspace;
804 int error;
805
806 error = ddt_object_info(ddt, type, class, &doi);
807
808 if (error == ENOENT)
809 return;
810 ASSERT(error == 0);
811
812 if ((count = ddt_object_count(ddt, type, class)) == 0)
813 return;
814
815 dspace = doi.doi_physical_blocks_512 << 9;
816 mspace = doi.doi_fill_count * doi.doi_data_block_size;
817
818 ddt_object_name(ddt, type, class, name);
819
820 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
821 name,
822 (u_longlong_t)count,
823 (u_longlong_t)(dspace / count),
824 (u_longlong_t)(mspace / count));
825
826 if (dump_opt['D'] < 3)
827 return;
828
829 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
830
831 if (dump_opt['D'] < 4)
832 return;
833
834 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
835 return;
836
837 (void) printf("%s contents:\n\n", name);
838
839 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
840 dump_dde(ddt, &dde, walk);
841
842 ASSERT(error == ENOENT);
843
844 (void) printf("\n");
845 }
846
847 static void
848 dump_all_ddts(spa_t *spa)
849 {
850 ddt_histogram_t ddh_total = { 0 };
851 ddt_stat_t dds_total = { 0 };
852
853 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
854 ddt_t *ddt = spa->spa_ddt[c];
855 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
856 for (enum ddt_class class = 0; class < DDT_CLASSES;
857 class++) {
858 dump_ddt(ddt, type, class);
859 }
860 }
861 }
862
863 ddt_get_dedup_stats(spa, &dds_total);
864
865 if (dds_total.dds_blocks == 0) {
866 (void) printf("All DDTs are empty\n");
867 return;
868 }
869
870 (void) printf("\n");
871
872 if (dump_opt['D'] > 1) {
873 (void) printf("DDT histogram (aggregated over all DDTs):\n");
874 ddt_get_dedup_histogram(spa, &ddh_total);
875 zpool_dump_ddt(&dds_total, &ddh_total);
876 }
877
878 dump_dedup_ratio(&dds_total);
879 }
880
881 static void
882 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
883 {
884 char *prefix = arg;
885
886 (void) printf("%s [%llu,%llu) length %llu\n",
887 prefix,
888 (u_longlong_t)start,
889 (u_longlong_t)(start + size),
890 (u_longlong_t)(size));
891 }
892
893 static void
894 dump_dtl(vdev_t *vd, int indent)
895 {
896 spa_t *spa = vd->vdev_spa;
897 boolean_t required;
898 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
899 char prefix[256];
900
901 spa_vdev_state_enter(spa, SCL_NONE);
902 required = vdev_dtl_required(vd);
903 (void) spa_vdev_state_exit(spa, NULL, 0);
904
905 if (indent == 0)
906 (void) printf("\nDirty time logs:\n\n");
907
908 (void) printf("\t%*s%s [%s]\n", indent, "",
909 vd->vdev_path ? vd->vdev_path :
910 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
911 required ? "DTL-required" : "DTL-expendable");
912
913 for (int t = 0; t < DTL_TYPES; t++) {
914 range_tree_t *rt = vd->vdev_dtl[t];
915 if (range_tree_space(rt) == 0)
916 continue;
917 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
918 indent + 2, "", name[t]);
919 mutex_enter(rt->rt_lock);
920 range_tree_walk(rt, dump_dtl_seg, prefix);
921 mutex_exit(rt->rt_lock);
922 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
923 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
924 }
925
926 for (int c = 0; c < vd->vdev_children; c++)
927 dump_dtl(vd->vdev_child[c], indent + 4);
928 }
929
930 static void
931 dump_history(spa_t *spa)
932 {
933 nvlist_t **events = NULL;
934 char buf[SPA_MAXBLOCKSIZE];
935 uint64_t resid, len, off = 0;
936 uint_t num = 0;
937 int error;
938 time_t tsec;
939 struct tm t;
940 char tbuf[30];
941 char internalstr[MAXPATHLEN];
942
943 do {
944 len = sizeof (buf);
945
946 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
947 (void) fprintf(stderr, "Unable to read history: "
948 "error %d\n", error);
949 return;
950 }
951
952 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
953 break;
954
955 off -= resid;
956 } while (len != 0);
957
958 (void) printf("\nHistory:\n");
959 for (int i = 0; i < num; i++) {
960 uint64_t time, txg, ievent;
961 char *cmd, *intstr;
962 boolean_t printed = B_FALSE;
963
964 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
965 &time) != 0)
966 goto next;
967 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
968 &cmd) != 0) {
969 if (nvlist_lookup_uint64(events[i],
970 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
971 goto next;
972 verify(nvlist_lookup_uint64(events[i],
973 ZPOOL_HIST_TXG, &txg) == 0);
974 verify(nvlist_lookup_string(events[i],
975 ZPOOL_HIST_INT_STR, &intstr) == 0);
976 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
977 goto next;
978
979 (void) snprintf(internalstr,
980 sizeof (internalstr),
981 "[internal %s txg:%lld] %s",
982 zfs_history_event_names[ievent], txg,
983 intstr);
984 cmd = internalstr;
985 }
986 tsec = time;
987 (void) localtime_r(&tsec, &t);
988 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
989 (void) printf("%s %s\n", tbuf, cmd);
990 printed = B_TRUE;
991
992 next:
993 if (dump_opt['h'] > 1) {
994 if (!printed)
995 (void) printf("unrecognized record:\n");
996 dump_nvlist(events[i], 2);
997 }
998 }
999 }
1000
1001 /*ARGSUSED*/
1002 static void
1003 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1004 {
1005 }
1006
1007 static uint64_t
1008 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb)
1009 {
1010 if (dnp == NULL) {
1011 ASSERT(zb->zb_level < 0);
1012 if (zb->zb_object == 0)
1013 return (zb->zb_blkid);
1014 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1015 }
1016
1017 ASSERT(zb->zb_level >= 0);
1018
1019 return ((zb->zb_blkid <<
1020 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1021 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1022 }
1023
1024 static void
1025 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1026 {
1027 const dva_t *dva = bp->blk_dva;
1028 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1029
1030 if (dump_opt['b'] >= 6) {
1031 snprintf_blkptr(blkbuf, buflen, bp);
1032 return;
1033 }
1034
1035 if (BP_IS_EMBEDDED(bp)) {
1036 (void) sprintf(blkbuf,
1037 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1038 (int)BPE_GET_ETYPE(bp),
1039 (u_longlong_t)BPE_GET_LSIZE(bp),
1040 (u_longlong_t)BPE_GET_PSIZE(bp),
1041 (u_longlong_t)bp->blk_birth);
1042 return;
1043 }
1044
1045 blkbuf[0] = '\0';
1046 for (int i = 0; i < ndvas; i++)
1047 (void) snprintf(blkbuf + strlen(blkbuf),
1048 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1049 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1050 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1051 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1052
1053 if (BP_IS_HOLE(bp)) {
1054 (void) snprintf(blkbuf + strlen(blkbuf),
1055 buflen - strlen(blkbuf), "B=%llu",
1056 (u_longlong_t)bp->blk_birth);
1057 } else {
1058 (void) snprintf(blkbuf + strlen(blkbuf),
1059 buflen - strlen(blkbuf),
1060 "%llxL/%llxP F=%llu B=%llu/%llu",
1061 (u_longlong_t)BP_GET_LSIZE(bp),
1062 (u_longlong_t)BP_GET_PSIZE(bp),
1063 (u_longlong_t)BP_GET_FILL(bp),
1064 (u_longlong_t)bp->blk_birth,
1065 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1066 }
1067 }
1068
1069 static void
1070 print_indirect(blkptr_t *bp, const zbookmark_t *zb,
1071 const dnode_phys_t *dnp)
1072 {
1073 char blkbuf[BP_SPRINTF_LEN];
1074 int l;
1075
1076 if (!BP_IS_EMBEDDED(bp)) {
1077 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1078 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1079 }
1080
1081 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1082
1083 ASSERT(zb->zb_level >= 0);
1084
1085 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1086 if (l == zb->zb_level) {
1087 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1088 } else {
1089 (void) printf(" ");
1090 }
1091 }
1092
1093 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1094 (void) printf("%s\n", blkbuf);
1095 }
1096
1097 static int
1098 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1099 blkptr_t *bp, const zbookmark_t *zb)
1100 {
1101 int err = 0;
1102
1103 if (bp->blk_birth == 0)
1104 return (0);
1105
1106 print_indirect(bp, zb, dnp);
1107
1108 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1109 uint32_t flags = ARC_WAIT;
1110 int i;
1111 blkptr_t *cbp;
1112 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1113 arc_buf_t *buf;
1114 uint64_t fill = 0;
1115
1116 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1117 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1118 if (err)
1119 return (err);
1120 ASSERT(buf->b_data);
1121
1122 /* recursively visit blocks below this */
1123 cbp = buf->b_data;
1124 for (i = 0; i < epb; i++, cbp++) {
1125 zbookmark_t czb;
1126
1127 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1128 zb->zb_level - 1,
1129 zb->zb_blkid * epb + i);
1130 err = visit_indirect(spa, dnp, cbp, &czb);
1131 if (err)
1132 break;
1133 fill += BP_GET_FILL(cbp);
1134 }
1135 if (!err)
1136 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1137 (void) arc_buf_remove_ref(buf, &buf);
1138 }
1139
1140 return (err);
1141 }
1142
1143 /*ARGSUSED*/
1144 static void
1145 dump_indirect(dnode_t *dn)
1146 {
1147 dnode_phys_t *dnp = dn->dn_phys;
1148 int j;
1149 zbookmark_t czb;
1150
1151 (void) printf("Indirect blocks:\n");
1152
1153 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1154 dn->dn_object, dnp->dn_nlevels - 1, 0);
1155 for (j = 0; j < dnp->dn_nblkptr; j++) {
1156 czb.zb_blkid = j;
1157 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1158 &dnp->dn_blkptr[j], &czb);
1159 }
1160
1161 (void) printf("\n");
1162 }
1163
1164 /*ARGSUSED*/
1165 static void
1166 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1167 {
1168 dsl_dir_phys_t *dd = data;
1169 time_t crtime;
1170 char nice[32];
1171
1172 if (dd == NULL)
1173 return;
1174
1175 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1176
1177 crtime = dd->dd_creation_time;
1178 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1179 (void) printf("\t\thead_dataset_obj = %llu\n",
1180 (u_longlong_t)dd->dd_head_dataset_obj);
1181 (void) printf("\t\tparent_dir_obj = %llu\n",
1182 (u_longlong_t)dd->dd_parent_obj);
1183 (void) printf("\t\torigin_obj = %llu\n",
1184 (u_longlong_t)dd->dd_origin_obj);
1185 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1186 (u_longlong_t)dd->dd_child_dir_zapobj);
1187 zdb_nicenum(dd->dd_used_bytes, nice);
1188 (void) printf("\t\tused_bytes = %s\n", nice);
1189 zdb_nicenum(dd->dd_compressed_bytes, nice);
1190 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1191 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1192 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1193 zdb_nicenum(dd->dd_quota, nice);
1194 (void) printf("\t\tquota = %s\n", nice);
1195 zdb_nicenum(dd->dd_reserved, nice);
1196 (void) printf("\t\treserved = %s\n", nice);
1197 (void) printf("\t\tprops_zapobj = %llu\n",
1198 (u_longlong_t)dd->dd_props_zapobj);
1199 (void) printf("\t\tdeleg_zapobj = %llu\n",
1200 (u_longlong_t)dd->dd_deleg_zapobj);
1201 (void) printf("\t\tflags = %llx\n",
1202 (u_longlong_t)dd->dd_flags);
1203
1204 #define DO(which) \
1205 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1206 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1207 DO(HEAD);
1208 DO(SNAP);
1209 DO(CHILD);
1210 DO(CHILD_RSRV);
1211 DO(REFRSRV);
1212 #undef DO
1213 }
1214
1215 /*ARGSUSED*/
1216 static void
1217 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1218 {
1219 dsl_dataset_phys_t *ds = data;
1220 time_t crtime;
1221 char used[32], compressed[32], uncompressed[32], unique[32];
1222 char blkbuf[BP_SPRINTF_LEN];
1223
1224 if (ds == NULL)
1225 return;
1226
1227 ASSERT(size == sizeof (*ds));
1228 crtime = ds->ds_creation_time;
1229 zdb_nicenum(ds->ds_referenced_bytes, used);
1230 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1231 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1232 zdb_nicenum(ds->ds_unique_bytes, unique);
1233 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1234
1235 (void) printf("\t\tdir_obj = %llu\n",
1236 (u_longlong_t)ds->ds_dir_obj);
1237 (void) printf("\t\tprev_snap_obj = %llu\n",
1238 (u_longlong_t)ds->ds_prev_snap_obj);
1239 (void) printf("\t\tprev_snap_txg = %llu\n",
1240 (u_longlong_t)ds->ds_prev_snap_txg);
1241 (void) printf("\t\tnext_snap_obj = %llu\n",
1242 (u_longlong_t)ds->ds_next_snap_obj);
1243 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1244 (u_longlong_t)ds->ds_snapnames_zapobj);
1245 (void) printf("\t\tnum_children = %llu\n",
1246 (u_longlong_t)ds->ds_num_children);
1247 (void) printf("\t\tuserrefs_obj = %llu\n",
1248 (u_longlong_t)ds->ds_userrefs_obj);
1249 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1250 (void) printf("\t\tcreation_txg = %llu\n",
1251 (u_longlong_t)ds->ds_creation_txg);
1252 (void) printf("\t\tdeadlist_obj = %llu\n",
1253 (u_longlong_t)ds->ds_deadlist_obj);
1254 (void) printf("\t\tused_bytes = %s\n", used);
1255 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1256 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1257 (void) printf("\t\tunique = %s\n", unique);
1258 (void) printf("\t\tfsid_guid = %llu\n",
1259 (u_longlong_t)ds->ds_fsid_guid);
1260 (void) printf("\t\tguid = %llu\n",
1261 (u_longlong_t)ds->ds_guid);
1262 (void) printf("\t\tflags = %llx\n",
1263 (u_longlong_t)ds->ds_flags);
1264 (void) printf("\t\tnext_clones_obj = %llu\n",
1265 (u_longlong_t)ds->ds_next_clones_obj);
1266 (void) printf("\t\tprops_obj = %llu\n",
1267 (u_longlong_t)ds->ds_props_obj);
1268 (void) printf("\t\tbp = %s\n", blkbuf);
1269 }
1270
1271 /* ARGSUSED */
1272 static int
1273 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1274 {
1275 char blkbuf[BP_SPRINTF_LEN];
1276
1277 if (bp->blk_birth != 0) {
1278 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1279 (void) printf("\t%s\n", blkbuf);
1280 }
1281 return (0);
1282 }
1283
1284 static void
1285 dump_bptree(objset_t *os, uint64_t obj, char *name)
1286 {
1287 char bytes[32];
1288 bptree_phys_t *bt;
1289 dmu_buf_t *db;
1290
1291 if (dump_opt['d'] < 3)
1292 return;
1293
1294 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1295 bt = db->db_data;
1296 zdb_nicenum(bt->bt_bytes, bytes);
1297 (void) printf("\n %s: %llu datasets, %s\n",
1298 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1299 dmu_buf_rele(db, FTAG);
1300
1301 if (dump_opt['d'] < 5)
1302 return;
1303
1304 (void) printf("\n");
1305
1306 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1307 }
1308
1309 /* ARGSUSED */
1310 static int
1311 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1312 {
1313 char blkbuf[BP_SPRINTF_LEN];
1314
1315 ASSERT(bp->blk_birth != 0);
1316 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1317 (void) printf("\t%s\n", blkbuf);
1318 return (0);
1319 }
1320
1321 static void
1322 dump_bpobj(bpobj_t *bpo, char *name, int indent)
1323 {
1324 char bytes[32];
1325 char comp[32];
1326 char uncomp[32];
1327
1328 if (dump_opt['d'] < 3)
1329 return;
1330
1331 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1332 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1333 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1334 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1335 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1336 "%llu subobjs, %s (%s/%s comp)\n",
1337 indent * 8, name,
1338 (u_longlong_t)bpo->bpo_object,
1339 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1340 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1341 bytes, comp, uncomp);
1342
1343 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1344 uint64_t subobj;
1345 bpobj_t subbpo;
1346 int error;
1347 VERIFY0(dmu_read(bpo->bpo_os,
1348 bpo->bpo_phys->bpo_subobjs,
1349 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1350 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1351 if (error != 0) {
1352 (void) printf("ERROR %u while trying to open "
1353 "subobj id %llu\n",
1354 error, (u_longlong_t)subobj);
1355 continue;
1356 }
1357 dump_bpobj(&subbpo, "subobj", indent + 1);
1358 bpobj_close(&subbpo);
1359 }
1360 } else {
1361 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1362 indent * 8, name,
1363 (u_longlong_t)bpo->bpo_object,
1364 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1365 bytes);
1366 }
1367
1368 if (dump_opt['d'] < 5)
1369 return;
1370
1371
1372 if (indent == 0) {
1373 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1374 (void) printf("\n");
1375 }
1376 }
1377
1378 static void
1379 dump_deadlist(dsl_deadlist_t *dl)
1380 {
1381 dsl_deadlist_entry_t *dle;
1382 uint64_t unused;
1383 char bytes[32];
1384 char comp[32];
1385 char uncomp[32];
1386
1387 if (dump_opt['d'] < 3)
1388 return;
1389
1390 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1391 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1392 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1393 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1394 bytes, comp, uncomp);
1395
1396 if (dump_opt['d'] < 4)
1397 return;
1398
1399 (void) printf("\n");
1400
1401 /* force the tree to be loaded */
1402 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1403
1404 for (dle = avl_first(&dl->dl_tree); dle;
1405 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1406 if (dump_opt['d'] >= 5) {
1407 char buf[128];
1408 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ",
1409 (longlong_t)dle->dle_mintxg,
1410 (longlong_t)dle->dle_bpobj.bpo_object);
1411
1412 dump_bpobj(&dle->dle_bpobj, buf, 0);
1413 } else {
1414 (void) printf("mintxg %llu -> obj %llu\n",
1415 (longlong_t)dle->dle_mintxg,
1416 (longlong_t)dle->dle_bpobj.bpo_object);
1417
1418 }
1419 }
1420 }
1421
1422 static avl_tree_t idx_tree;
1423 static avl_tree_t domain_tree;
1424 static boolean_t fuid_table_loaded;
1425 static boolean_t sa_loaded;
1426 sa_attr_type_t *sa_attr_table;
1427
1428 static void
1429 fuid_table_destroy()
1430 {
1431 if (fuid_table_loaded) {
1432 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1433 fuid_table_loaded = B_FALSE;
1434 }
1435 }
1436
1437 /*
1438 * print uid or gid information.
1439 * For normal POSIX id just the id is printed in decimal format.
1440 * For CIFS files with FUID the fuid is printed in hex followed by
1441 * the domain-rid string.
1442 */
1443 static void
1444 print_idstr(uint64_t id, const char *id_type)
1445 {
1446 if (FUID_INDEX(id)) {
1447 char *domain;
1448
1449 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1450 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1451 (u_longlong_t)id, domain, (int)FUID_RID(id));
1452 } else {
1453 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1454 }
1455
1456 }
1457
1458 static void
1459 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1460 {
1461 uint32_t uid_idx, gid_idx;
1462
1463 uid_idx = FUID_INDEX(uid);
1464 gid_idx = FUID_INDEX(gid);
1465
1466 /* Load domain table, if not already loaded */
1467 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1468 uint64_t fuid_obj;
1469
1470 /* first find the fuid object. It lives in the master node */
1471 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1472 8, 1, &fuid_obj) == 0);
1473 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1474 (void) zfs_fuid_table_load(os, fuid_obj,
1475 &idx_tree, &domain_tree);
1476 fuid_table_loaded = B_TRUE;
1477 }
1478
1479 print_idstr(uid, "uid");
1480 print_idstr(gid, "gid");
1481 }
1482
1483 /*ARGSUSED*/
1484 static void
1485 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1486 {
1487 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1488 sa_handle_t *hdl;
1489 uint64_t xattr, rdev, gen;
1490 uint64_t uid, gid, mode, fsize, parent, links;
1491 uint64_t pflags;
1492 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1493 time_t z_crtime, z_atime, z_mtime, z_ctime;
1494 sa_bulk_attr_t bulk[12];
1495 int idx = 0;
1496 int error;
1497
1498 if (!sa_loaded) {
1499 uint64_t sa_attrs = 0;
1500 uint64_t version;
1501
1502 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1503 8, 1, &version) == 0);
1504 if (version >= ZPL_VERSION_SA) {
1505 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1506 8, 1, &sa_attrs) == 0);
1507 }
1508 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1509 ZPL_END, &sa_attr_table)) != 0) {
1510 (void) printf("sa_setup failed errno %d, can't "
1511 "display znode contents\n", error);
1512 return;
1513 }
1514 sa_loaded = B_TRUE;
1515 }
1516
1517 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1518 (void) printf("Failed to get handle for SA znode\n");
1519 return;
1520 }
1521
1522 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1523 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1524 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1525 &links, 8);
1526 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1527 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1528 &mode, 8);
1529 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1530 NULL, &parent, 8);
1531 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1532 &fsize, 8);
1533 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1534 acctm, 16);
1535 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1536 modtm, 16);
1537 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1538 crtm, 16);
1539 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1540 chgtm, 16);
1541 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1542 &pflags, 8);
1543
1544 if (sa_bulk_lookup(hdl, bulk, idx)) {
1545 (void) sa_handle_destroy(hdl);
1546 return;
1547 }
1548
1549 error = zfs_obj_to_path(os, object, path, sizeof (path));
1550 if (error != 0) {
1551 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1552 (u_longlong_t)object);
1553 }
1554 if (dump_opt['d'] < 3) {
1555 (void) printf("\t%s\n", path);
1556 (void) sa_handle_destroy(hdl);
1557 return;
1558 }
1559
1560 z_crtime = (time_t)crtm[0];
1561 z_atime = (time_t)acctm[0];
1562 z_mtime = (time_t)modtm[0];
1563 z_ctime = (time_t)chgtm[0];
1564
1565 (void) printf("\tpath %s\n", path);
1566 dump_uidgid(os, uid, gid);
1567 (void) printf("\tatime %s", ctime(&z_atime));
1568 (void) printf("\tmtime %s", ctime(&z_mtime));
1569 (void) printf("\tctime %s", ctime(&z_ctime));
1570 (void) printf("\tcrtime %s", ctime(&z_crtime));
1571 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1572 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1573 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1574 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1575 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1576 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1577 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1578 sizeof (uint64_t)) == 0)
1579 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1580 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1581 sizeof (uint64_t)) == 0)
1582 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1583 sa_handle_destroy(hdl);
1584 }
1585
1586 /*ARGSUSED*/
1587 static void
1588 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1589 {
1590 }
1591
1592 /*ARGSUSED*/
1593 static void
1594 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1595 {
1596 }
1597
1598 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1599 dump_none, /* unallocated */
1600 dump_zap, /* object directory */
1601 dump_uint64, /* object array */
1602 dump_none, /* packed nvlist */
1603 dump_packed_nvlist, /* packed nvlist size */
1604 dump_none, /* bplist */
1605 dump_none, /* bplist header */
1606 dump_none, /* SPA space map header */
1607 dump_none, /* SPA space map */
1608 dump_none, /* ZIL intent log */
1609 dump_dnode, /* DMU dnode */
1610 dump_dmu_objset, /* DMU objset */
1611 dump_dsl_dir, /* DSL directory */
1612 dump_zap, /* DSL directory child map */
1613 dump_zap, /* DSL dataset snap map */
1614 dump_zap, /* DSL props */
1615 dump_dsl_dataset, /* DSL dataset */
1616 dump_znode, /* ZFS znode */
1617 dump_acl, /* ZFS V0 ACL */
1618 dump_uint8, /* ZFS plain file */
1619 dump_zpldir, /* ZFS directory */
1620 dump_zap, /* ZFS master node */
1621 dump_zap, /* ZFS delete queue */
1622 dump_uint8, /* zvol object */
1623 dump_zap, /* zvol prop */
1624 dump_uint8, /* other uint8[] */
1625 dump_uint64, /* other uint64[] */
1626 dump_zap, /* other ZAP */
1627 dump_zap, /* persistent error log */
1628 dump_uint8, /* SPA history */
1629 dump_history_offsets, /* SPA history offsets */
1630 dump_zap, /* Pool properties */
1631 dump_zap, /* DSL permissions */
1632 dump_acl, /* ZFS ACL */
1633 dump_uint8, /* ZFS SYSACL */
1634 dump_none, /* FUID nvlist */
1635 dump_packed_nvlist, /* FUID nvlist size */
1636 dump_zap, /* DSL dataset next clones */
1637 dump_zap, /* DSL scrub queue */
1638 dump_zap, /* ZFS user/group used */
1639 dump_zap, /* ZFS user/group quota */
1640 dump_zap, /* snapshot refcount tags */
1641 dump_ddt_zap, /* DDT ZAP object */
1642 dump_zap, /* DDT statistics */
1643 dump_znode, /* SA object */
1644 dump_zap, /* SA Master Node */
1645 dump_sa_attrs, /* SA attribute registration */
1646 dump_sa_layouts, /* SA attribute layouts */
1647 dump_zap, /* DSL scrub translations */
1648 dump_none, /* fake dedup BP */
1649 dump_zap, /* deadlist */
1650 dump_none, /* deadlist hdr */
1651 dump_zap, /* dsl clones */
1652 dump_none, /* bpobj subobjs */
1653 dump_unknown, /* Unknown type, must be last */
1654 };
1655
1656 static void
1657 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1658 {
1659 dmu_buf_t *db = NULL;
1660 dmu_object_info_t doi;
1661 dnode_t *dn;
1662 void *bonus = NULL;
1663 size_t bsize = 0;
1664 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1665 char bonus_size[32];
1666 char aux[50];
1667 int error;
1668
1669 if (*print_header) {
1670 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1671 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1672 "%full", "type");
1673 *print_header = 0;
1674 }
1675
1676 if (object == 0) {
1677 dn = DMU_META_DNODE(os);
1678 } else {
1679 error = dmu_bonus_hold(os, object, FTAG, &db);
1680 if (error)
1681 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1682 object, error);
1683 bonus = db->db_data;
1684 bsize = db->db_size;
1685 dn = DB_DNODE((dmu_buf_impl_t *)db);
1686 }
1687 dmu_object_info_from_dnode(dn, &doi);
1688
1689 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1690 zdb_nicenum(doi.doi_data_block_size, dblk);
1691 zdb_nicenum(doi.doi_max_offset, lsize);
1692 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1693 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1694 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1695 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1696 doi.doi_max_offset);
1697
1698 aux[0] = '\0';
1699
1700 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1701 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1702 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1703 }
1704
1705 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1706 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1707 ZDB_COMPRESS_NAME(doi.doi_compress));
1708 }
1709
1710 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1711 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1712 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1713
1714 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1715 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1716 "", "", "", "", "", bonus_size, "bonus",
1717 ZDB_OT_NAME(doi.doi_bonus_type));
1718 }
1719
1720 if (verbosity >= 4) {
1721 (void) printf("\tdnode flags: %s%s%s\n",
1722 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1723 "USED_BYTES " : "",
1724 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1725 "USERUSED_ACCOUNTED " : "",
1726 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1727 "SPILL_BLKPTR" : "");
1728 (void) printf("\tdnode maxblkid: %llu\n",
1729 (longlong_t)dn->dn_phys->dn_maxblkid);
1730
1731 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1732 bonus, bsize);
1733 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1734 *print_header = 1;
1735 }
1736
1737 if (verbosity >= 5)
1738 dump_indirect(dn);
1739
1740 if (verbosity >= 5) {
1741 /*
1742 * Report the list of segments that comprise the object.
1743 */
1744 uint64_t start = 0;
1745 uint64_t end;
1746 uint64_t blkfill = 1;
1747 int minlvl = 1;
1748
1749 if (dn->dn_type == DMU_OT_DNODE) {
1750 minlvl = 0;
1751 blkfill = DNODES_PER_BLOCK;
1752 }
1753
1754 for (;;) {
1755 char segsize[32];
1756 error = dnode_next_offset(dn,
1757 0, &start, minlvl, blkfill, 0);
1758 if (error)
1759 break;
1760 end = start;
1761 error = dnode_next_offset(dn,
1762 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1763 zdb_nicenum(end - start, segsize);
1764 (void) printf("\t\tsegment [%016llx, %016llx)"
1765 " size %5s\n", (u_longlong_t)start,
1766 (u_longlong_t)end, segsize);
1767 if (error)
1768 break;
1769 start = end;
1770 }
1771 }
1772
1773 if (db != NULL)
1774 dmu_buf_rele(db, FTAG);
1775 }
1776
1777 static char *objset_types[DMU_OST_NUMTYPES] = {
1778 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1779
1780 static void
1781 dump_dir(objset_t *os)
1782 {
1783 dmu_objset_stats_t dds;
1784 uint64_t object, object_count;
1785 uint64_t refdbytes, usedobjs, scratch;
1786 char numbuf[32];
1787 char blkbuf[BP_SPRINTF_LEN + 20];
1788 char osname[MAXNAMELEN];
1789 char *type = "UNKNOWN";
1790 int verbosity = dump_opt['d'];
1791 int print_header = 1;
1792 int i, error;
1793
1794 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1795 dmu_objset_fast_stat(os, &dds);
1796 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1797
1798 if (dds.dds_type < DMU_OST_NUMTYPES)
1799 type = objset_types[dds.dds_type];
1800
1801 if (dds.dds_type == DMU_OST_META) {
1802 dds.dds_creation_txg = TXG_INITIAL;
1803 usedobjs = BP_GET_FILL(os->os_rootbp);
1804 refdbytes = os->os_spa->spa_dsl_pool->
1805 dp_mos_dir->dd_phys->dd_used_bytes;
1806 } else {
1807 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1808 }
1809
1810 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
1811
1812 zdb_nicenum(refdbytes, numbuf);
1813
1814 if (verbosity >= 4) {
1815 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
1816 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
1817 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
1818 } else {
1819 blkbuf[0] = '\0';
1820 }
1821
1822 dmu_objset_name(os, osname);
1823
1824 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1825 "%s, %llu objects%s\n",
1826 osname, type, (u_longlong_t)dmu_objset_id(os),
1827 (u_longlong_t)dds.dds_creation_txg,
1828 numbuf, (u_longlong_t)usedobjs, blkbuf);
1829
1830 if (zopt_objects != 0) {
1831 for (i = 0; i < zopt_objects; i++)
1832 dump_object(os, zopt_object[i], verbosity,
1833 &print_header);
1834 (void) printf("\n");
1835 return;
1836 }
1837
1838 if (dump_opt['i'] != 0 || verbosity >= 2)
1839 dump_intent_log(dmu_objset_zil(os));
1840
1841 if (dmu_objset_ds(os) != NULL)
1842 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1843
1844 if (verbosity < 2)
1845 return;
1846
1847 if (BP_IS_HOLE(os->os_rootbp))
1848 return;
1849
1850 dump_object(os, 0, verbosity, &print_header);
1851 object_count = 0;
1852 if (DMU_USERUSED_DNODE(os) != NULL &&
1853 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1854 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1855 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1856 }
1857
1858 object = 0;
1859 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1860 dump_object(os, object, verbosity, &print_header);
1861 object_count++;
1862 }
1863
1864 ASSERT3U(object_count, ==, usedobjs);
1865
1866 (void) printf("\n");
1867
1868 if (error != ESRCH) {
1869 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1870 abort();
1871 }
1872 }
1873
1874 static void
1875 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
1876 {
1877 time_t timestamp = ub->ub_timestamp;
1878
1879 (void) printf(header ? header : "");
1880 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1881 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1882 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1883 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1884 (void) printf("\ttimestamp = %llu UTC = %s",
1885 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
1886 if (dump_opt['u'] >= 3) {
1887 char blkbuf[BP_SPRINTF_LEN];
1888 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
1889 (void) printf("\trootbp = %s\n", blkbuf);
1890 }
1891 (void) printf(footer ? footer : "");
1892 }
1893
1894 static void
1895 dump_config(spa_t *spa)
1896 {
1897 dmu_buf_t *db;
1898 size_t nvsize = 0;
1899 int error = 0;
1900
1901
1902 error = dmu_bonus_hold(spa->spa_meta_objset,
1903 spa->spa_config_object, FTAG, &db);
1904
1905 if (error == 0) {
1906 nvsize = *(uint64_t *)db->db_data;
1907 dmu_buf_rele(db, FTAG);
1908
1909 (void) printf("\nMOS Configuration:\n");
1910 dump_packed_nvlist(spa->spa_meta_objset,
1911 spa->spa_config_object, (void *)&nvsize, 1);
1912 } else {
1913 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
1914 (u_longlong_t)spa->spa_config_object, error);
1915 }
1916 }
1917
1918 static void
1919 dump_cachefile(const char *cachefile)
1920 {
1921 int fd;
1922 struct stat64 statbuf;
1923 char *buf;
1924 nvlist_t *config;
1925
1926 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1927 (void) printf("cannot open '%s': %s\n", cachefile,
1928 strerror(errno));
1929 exit(1);
1930 }
1931
1932 if (fstat64(fd, &statbuf) != 0) {
1933 (void) printf("failed to stat '%s': %s\n", cachefile,
1934 strerror(errno));
1935 exit(1);
1936 }
1937
1938 if ((buf = malloc(statbuf.st_size)) == NULL) {
1939 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
1940 (u_longlong_t)statbuf.st_size);
1941 exit(1);
1942 }
1943
1944 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1945 (void) fprintf(stderr, "failed to read %llu bytes\n",
1946 (u_longlong_t)statbuf.st_size);
1947 exit(1);
1948 }
1949
1950 (void) close(fd);
1951
1952 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
1953 (void) fprintf(stderr, "failed to unpack nvlist\n");
1954 exit(1);
1955 }
1956
1957 free(buf);
1958
1959 dump_nvlist(config, 0);
1960
1961 nvlist_free(config);
1962 }
1963
1964 #define ZDB_MAX_UB_HEADER_SIZE 32
1965
1966 static void
1967 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
1968 {
1969 vdev_t vd;
1970 vdev_t *vdp = &vd;
1971 char header[ZDB_MAX_UB_HEADER_SIZE];
1972
1973 vd.vdev_ashift = ashift;
1974 vdp->vdev_top = vdp;
1975
1976 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
1977 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
1978 uberblock_t *ub = (void *)((char *)lbl + uoff);
1979
1980 if (uberblock_verify(ub))
1981 continue;
1982 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
1983 "Uberblock[%d]\n", i);
1984 dump_uberblock(ub, header, "");
1985 }
1986 }
1987
1988 static void
1989 dump_label(const char *dev)
1990 {
1991 int fd;
1992 vdev_label_t label;
1993 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
1994 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
1995 struct stat64 statbuf;
1996 uint64_t psize, ashift;
1997 int len = strlen(dev) + 1;
1998
1999 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
2000 len++;
2001 path = malloc(len);
2002 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
2003 } else {
2004 path = strdup(dev);
2005 }
2006
2007 if ((fd = open64(path, O_RDONLY)) < 0) {
2008 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2009 free(path);
2010 exit(1);
2011 }
2012
2013 if (fstat64(fd, &statbuf) != 0) {
2014 (void) printf("failed to stat '%s': %s\n", path,
2015 strerror(errno));
2016 free(path);
2017 (void) close(fd);
2018 exit(1);
2019 }
2020
2021 if (S_ISBLK(statbuf.st_mode)) {
2022 (void) printf("cannot use '%s': character device required\n",
2023 path);
2024 free(path);
2025 (void) close(fd);
2026 exit(1);
2027 }
2028
2029 psize = statbuf.st_size;
2030 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2031
2032 for (int l = 0; l < VDEV_LABELS; l++) {
2033 nvlist_t *config = NULL;
2034
2035 (void) printf("--------------------------------------------\n");
2036 (void) printf("LABEL %d\n", l);
2037 (void) printf("--------------------------------------------\n");
2038
2039 if (pread64(fd, &label, sizeof (label),
2040 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2041 (void) printf("failed to read label %d\n", l);
2042 continue;
2043 }
2044
2045 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2046 (void) printf("failed to unpack label %d\n", l);
2047 ashift = SPA_MINBLOCKSHIFT;
2048 } else {
2049 nvlist_t *vdev_tree = NULL;
2050
2051 dump_nvlist(config, 4);
2052 if ((nvlist_lookup_nvlist(config,
2053 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2054 (nvlist_lookup_uint64(vdev_tree,
2055 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2056 ashift = SPA_MINBLOCKSHIFT;
2057 nvlist_free(config);
2058 }
2059 if (dump_opt['u'])
2060 dump_label_uberblocks(&label, ashift);
2061 }
2062
2063 free(path);
2064 (void) close(fd);
2065 }
2066
2067 /*ARGSUSED*/
2068 static int
2069 dump_one_dir(const char *dsname, void *arg)
2070 {
2071 int error;
2072 objset_t *os;
2073
2074 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
2075 if (error) {
2076 (void) printf("Could not open %s, error %d\n", dsname, error);
2077 return (0);
2078 }
2079 dump_dir(os);
2080 dmu_objset_disown(os, FTAG);
2081 fuid_table_destroy();
2082 sa_loaded = B_FALSE;
2083 return (0);
2084 }
2085
2086 /*
2087 * Block statistics.
2088 */
2089 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1)
2090 typedef struct zdb_blkstats {
2091 uint64_t zb_asize;
2092 uint64_t zb_lsize;
2093 uint64_t zb_psize;
2094 uint64_t zb_count;
2095 uint64_t zb_gangs;
2096 uint64_t zb_ditto_samevdev;
2097 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2098 } zdb_blkstats_t;
2099
2100 /*
2101 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2102 */
2103 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2104 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2105 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2106 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2107
2108 static char *zdb_ot_extname[] = {
2109 "deferred free",
2110 "dedup ditto",
2111 "other",
2112 "Total",
2113 };
2114
2115 #define ZB_TOTAL DN_MAX_LEVELS
2116
2117 typedef struct zdb_cb {
2118 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2119 uint64_t zcb_dedup_asize;
2120 uint64_t zcb_dedup_blocks;
2121 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2122 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2123 [BPE_PAYLOAD_SIZE];
2124 uint64_t zcb_start;
2125 uint64_t zcb_lastprint;
2126 uint64_t zcb_totalasize;
2127 uint64_t zcb_errors[256];
2128 int zcb_readfails;
2129 int zcb_haderrors;
2130 spa_t *zcb_spa;
2131 } zdb_cb_t;
2132
2133 static void
2134 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2135 dmu_object_type_t type)
2136 {
2137 uint64_t refcnt = 0;
2138
2139 ASSERT(type < ZDB_OT_TOTAL);
2140
2141 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2142 return;
2143
2144 for (int i = 0; i < 4; i++) {
2145 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2146 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2147 int equal;
2148 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2149
2150 zb->zb_asize += BP_GET_ASIZE(bp);
2151 zb->zb_lsize += BP_GET_LSIZE(bp);
2152 zb->zb_psize += BP_GET_PSIZE(bp);
2153 zb->zb_count++;
2154 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++;
2155
2156 zb->zb_gangs += BP_COUNT_GANG(bp);
2157
2158 switch (BP_GET_NDVAS(bp)) {
2159 case 2:
2160 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2161 DVA_GET_VDEV(&bp->blk_dva[1]))
2162 zb->zb_ditto_samevdev++;
2163 break;
2164 case 3:
2165 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2166 DVA_GET_VDEV(&bp->blk_dva[1])) +
2167 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2168 DVA_GET_VDEV(&bp->blk_dva[2])) +
2169 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2170 DVA_GET_VDEV(&bp->blk_dva[2]));
2171 if (equal != 0)
2172 zb->zb_ditto_samevdev++;
2173 break;
2174 }
2175
2176 }
2177
2178 if (BP_IS_EMBEDDED(bp)) {
2179 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2180 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2181 [BPE_GET_PSIZE(bp)]++;
2182 return;
2183 }
2184
2185 if (dump_opt['L'])
2186 return;
2187
2188 if (BP_GET_DEDUP(bp)) {
2189 ddt_t *ddt;
2190 ddt_entry_t *dde;
2191
2192 ddt = ddt_select(zcb->zcb_spa, bp);
2193 ddt_enter(ddt);
2194 dde = ddt_lookup(ddt, bp, B_FALSE);
2195
2196 if (dde == NULL) {
2197 refcnt = 0;
2198 } else {
2199 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2200 ddt_phys_decref(ddp);
2201 refcnt = ddp->ddp_refcnt;
2202 if (ddt_phys_total_refcnt(dde) == 0)
2203 ddt_remove(ddt, dde);
2204 }
2205 ddt_exit(ddt);
2206 }
2207
2208 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2209 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2210 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2211 }
2212
2213 static void
2214 zdb_blkptr_done(zio_t *zio)
2215 {
2216 spa_t *spa = zio->io_spa;
2217 blkptr_t *bp = zio->io_bp;
2218 int ioerr = zio->io_error;
2219 zdb_cb_t *zcb = zio->io_private;
2220 zbookmark_t *zb = &zio->io_bookmark;
2221
2222 zio_data_buf_free(zio->io_data, zio->io_size);
2223
2224 mutex_enter(&spa->spa_scrub_lock);
2225 spa->spa_scrub_inflight--;
2226 cv_broadcast(&spa->spa_scrub_io_cv);
2227
2228 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2229 char blkbuf[BP_SPRINTF_LEN];
2230
2231 zcb->zcb_haderrors = 1;
2232 zcb->zcb_errors[ioerr]++;
2233
2234 if (dump_opt['b'] >= 2)
2235 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2236 else
2237 blkbuf[0] = '\0';
2238
2239 (void) printf("zdb_blkptr_cb: "
2240 "Got error %d reading "
2241 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2242 ioerr,
2243 (u_longlong_t)zb->zb_objset,
2244 (u_longlong_t)zb->zb_object,
2245 (u_longlong_t)zb->zb_level,
2246 (u_longlong_t)zb->zb_blkid,
2247 blkbuf);
2248 }
2249 mutex_exit(&spa->spa_scrub_lock);
2250 }
2251
2252 static int
2253 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2254 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2255 {
2256 zdb_cb_t *zcb = arg;
2257 dmu_object_type_t type;
2258 boolean_t is_metadata;
2259
2260 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2261 char blkbuf[BP_SPRINTF_LEN];
2262 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2263 (void) printf("objset %llu object %llu "
2264 "level %lld offset 0x%llx %s\n",
2265 (u_longlong_t)zb->zb_objset,
2266 (u_longlong_t)zb->zb_object,
2267 (longlong_t)zb->zb_level,
2268 (u_longlong_t)blkid2offset(dnp, bp, zb),
2269 blkbuf);
2270 }
2271
2272 if (BP_IS_HOLE(bp))
2273 return (0);
2274
2275 type = BP_GET_TYPE(bp);
2276
2277 zdb_count_block(zcb, zilog, bp,
2278 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2279
2280 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2281
2282 if (!BP_IS_EMBEDDED(bp) &&
2283 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2284 size_t size = BP_GET_PSIZE(bp);
2285 void *data = zio_data_buf_alloc(size);
2286 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2287
2288 /* If it's an intent log block, failure is expected. */
2289 if (zb->zb_level == ZB_ZIL_LEVEL)
2290 flags |= ZIO_FLAG_SPECULATIVE;
2291
2292 mutex_enter(&spa->spa_scrub_lock);
2293 while (spa->spa_scrub_inflight > max_inflight)
2294 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2295 spa->spa_scrub_inflight++;
2296 mutex_exit(&spa->spa_scrub_lock);
2297
2298 zio_nowait(zio_read(NULL, spa, bp, data, size,
2299 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2300 }
2301
2302 zcb->zcb_readfails = 0;
2303
2304 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) &&
2305 gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2306 uint64_t now = gethrtime();
2307 char buf[10];
2308 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2309 int kb_per_sec =
2310 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2311 int sec_remaining =
2312 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2313
2314 zfs_nicenum(bytes, buf, sizeof (buf));
2315 (void) fprintf(stderr,
2316 "\r%5s completed (%4dMB/s) "
2317 "estimated time remaining: %uhr %02umin %02usec ",
2318 buf, kb_per_sec / 1024,
2319 sec_remaining / 60 / 60,
2320 sec_remaining / 60 % 60,
2321 sec_remaining % 60);
2322
2323 zcb->zcb_lastprint = now;
2324 }
2325
2326 return (0);
2327 }
2328
2329 static void
2330 zdb_leak(void *arg, uint64_t start, uint64_t size)
2331 {
2332 vdev_t *vd = arg;
2333
2334 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2335 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2336 }
2337
2338 static metaslab_ops_t zdb_metaslab_ops = {
2339 NULL, /* alloc */
2340 NULL /* fragmented */
2341 };
2342
2343 static void
2344 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2345 {
2346 ddt_bookmark_t ddb = { 0 };
2347 ddt_entry_t dde;
2348 int error;
2349
2350 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2351 blkptr_t blk;
2352 ddt_phys_t *ddp = dde.dde_phys;
2353
2354 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2355 return;
2356
2357 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2358
2359 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2360 if (ddp->ddp_phys_birth == 0)
2361 continue;
2362 ddt_bp_create(ddb.ddb_checksum,
2363 &dde.dde_key, ddp, &blk);
2364 if (p == DDT_PHYS_DITTO) {
2365 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2366 } else {
2367 zcb->zcb_dedup_asize +=
2368 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2369 zcb->zcb_dedup_blocks++;
2370 }
2371 }
2372 if (!dump_opt['L']) {
2373 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2374 ddt_enter(ddt);
2375 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2376 ddt_exit(ddt);
2377 }
2378 }
2379
2380 ASSERT(error == ENOENT);
2381 }
2382
2383 static void
2384 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2385 {
2386 zcb->zcb_spa = spa;
2387
2388 if (!dump_opt['L']) {
2389 vdev_t *rvd = spa->spa_root_vdev;
2390 for (int c = 0; c < rvd->vdev_children; c++) {
2391 vdev_t *vd = rvd->vdev_child[c];
2392 for (int m = 0; m < vd->vdev_ms_count; m++) {
2393 metaslab_t *msp = vd->vdev_ms[m];
2394 mutex_enter(&msp->ms_lock);
2395 metaslab_unload(msp);
2396
2397 /*
2398 * For leak detection, we overload the metaslab
2399 * ms_tree to contain allocated segments
2400 * instead of free segments. As a result,
2401 * we can't use the normal metaslab_load/unload
2402 * interfaces.
2403 */
2404 if (msp->ms_sm != NULL) {
2405 msp->ms_ops = &zdb_metaslab_ops;
2406 VERIFY0(space_map_load(msp->ms_sm,
2407 msp->ms_tree, SM_ALLOC));
2408 msp->ms_loaded = B_TRUE;
2409 }
2410 mutex_exit(&msp->ms_lock);
2411 }
2412 }
2413 }
2414
2415 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2416
2417 zdb_ddt_leak_init(spa, zcb);
2418
2419 spa_config_exit(spa, SCL_CONFIG, FTAG);
2420 }
2421
2422 static void
2423 zdb_leak_fini(spa_t *spa)
2424 {
2425 if (!dump_opt['L']) {
2426 vdev_t *rvd = spa->spa_root_vdev;
2427 for (int c = 0; c < rvd->vdev_children; c++) {
2428 vdev_t *vd = rvd->vdev_child[c];
2429 for (int m = 0; m < vd->vdev_ms_count; m++) {
2430 metaslab_t *msp = vd->vdev_ms[m];
2431 mutex_enter(&msp->ms_lock);
2432
2433 /*
2434 * The ms_tree has been overloaded to
2435 * contain allocated segments. Now that we
2436 * finished traversing all blocks, any
2437 * block that remains in the ms_tree
2438 * represents an allocated block that we
2439 * did not claim during the traversal.
2440 * Claimed blocks would have been removed
2441 * from the ms_tree.
2442 */
2443 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2444 msp->ms_loaded = B_FALSE;
2445
2446 mutex_exit(&msp->ms_lock);
2447 }
2448 }
2449 }
2450 }
2451
2452 /* ARGSUSED */
2453 static int
2454 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2455 {
2456 zdb_cb_t *zcb = arg;
2457
2458 if (dump_opt['b'] >= 5) {
2459 char blkbuf[BP_SPRINTF_LEN];
2460 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2461 (void) printf("[%s] %s\n",
2462 "deferred free", blkbuf);
2463 }
2464 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2465 return (0);
2466 }
2467
2468 static int
2469 dump_block_stats(spa_t *spa)
2470 {
2471 zdb_cb_t zcb = { 0 };
2472 zdb_blkstats_t *zb, *tzb;
2473 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2474 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2475 boolean_t leaks = B_FALSE;
2476
2477 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2478 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2479 (dump_opt['c'] == 1) ? "metadata " : "",
2480 dump_opt['c'] ? "checksums " : "",
2481 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2482 !dump_opt['L'] ? "nothing leaked " : "");
2483
2484 /*
2485 * Load all space maps as SM_ALLOC maps, then traverse the pool
2486 * claiming each block we discover. If the pool is perfectly
2487 * consistent, the space maps will be empty when we're done.
2488 * Anything left over is a leak; any block we can't claim (because
2489 * it's not part of any space map) is a double allocation,
2490 * reference to a freed block, or an unclaimed log block.
2491 */
2492 zdb_leak_init(spa, &zcb);
2493
2494 /*
2495 * If there's a deferred-free bplist, process that first.
2496 */
2497 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2498 count_block_cb, &zcb, NULL);
2499 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2500 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2501 count_block_cb, &zcb, NULL);
2502 }
2503 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2504 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2505 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2506 &zcb, NULL));
2507 }
2508
2509 if (dump_opt['c'] > 1)
2510 flags |= TRAVERSE_PREFETCH_DATA;
2511
2512 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2513 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2514 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2515
2516 /*
2517 * If we've traversed the data blocks then we need to wait for those
2518 * I/Os to complete. We leverage "The Godfather" zio to wait on
2519 * all async I/Os to complete.
2520 */
2521 if (dump_opt['c']) {
2522 (void) zio_wait(spa->spa_async_zio_root);
2523 spa->spa_async_zio_root = zio_root(spa, NULL, NULL,
2524 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2525 ZIO_FLAG_GODFATHER);
2526 }
2527
2528 if (zcb.zcb_haderrors) {
2529 (void) printf("\nError counts:\n\n");
2530 (void) printf("\t%5s %s\n", "errno", "count");
2531 for (int e = 0; e < 256; e++) {
2532 if (zcb.zcb_errors[e] != 0) {
2533 (void) printf("\t%5d %llu\n",
2534 e, (u_longlong_t)zcb.zcb_errors[e]);
2535 }
2536 }
2537 }
2538
2539 /*
2540 * Report any leaked segments.
2541 */
2542 zdb_leak_fini(spa);
2543
2544 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2545
2546 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2547 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2548
2549 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2550 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2551
2552 if (total_found == total_alloc) {
2553 if (!dump_opt['L'])
2554 (void) printf("\n\tNo leaks (block sum matches space"
2555 " maps exactly)\n");
2556 } else {
2557 (void) printf("block traversal size %llu != alloc %llu "
2558 "(%s %lld)\n",
2559 (u_longlong_t)total_found,
2560 (u_longlong_t)total_alloc,
2561 (dump_opt['L']) ? "unreachable" : "leaked",
2562 (longlong_t)(total_alloc - total_found));
2563 leaks = B_TRUE;
2564 }
2565
2566 if (tzb->zb_count == 0)
2567 return (2);
2568
2569 (void) printf("\n");
2570 (void) printf("\tbp count: %10llu\n",
2571 (u_longlong_t)tzb->zb_count);
2572 (void) printf("\tganged count: %10llu\n",
2573 (longlong_t)tzb->zb_gangs);
2574 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2575 (u_longlong_t)tzb->zb_lsize,
2576 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2577 (void) printf("\tbp physical: %10llu avg:"
2578 " %6llu compression: %6.2f\n",
2579 (u_longlong_t)tzb->zb_psize,
2580 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2581 (double)tzb->zb_lsize / tzb->zb_psize);
2582 (void) printf("\tbp allocated: %10llu avg:"
2583 " %6llu compression: %6.2f\n",
2584 (u_longlong_t)tzb->zb_asize,
2585 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2586 (double)tzb->zb_lsize / tzb->zb_asize);
2587 (void) printf("\tbp deduped: %10llu ref>1:"
2588 " %6llu deduplication: %6.2f\n",
2589 (u_longlong_t)zcb.zcb_dedup_asize,
2590 (u_longlong_t)zcb.zcb_dedup_blocks,
2591 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2592 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2593 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2594
2595 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2596 if (zcb.zcb_embedded_blocks[i] == 0)
2597 continue;
2598 (void) printf("\n");
2599 (void) printf("\tadditional, non-pointer bps of type %u: "
2600 "%10llu\n",
2601 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2602
2603 if (dump_opt['b'] >= 3) {
2604 (void) printf("\t number of (compressed) bytes: "
2605 "number of bps\n");
2606 dump_histogram(zcb.zcb_embedded_histogram[i],
2607 sizeof (zcb.zcb_embedded_histogram[i]) /
2608 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2609 }
2610 }
2611
2612 if (tzb->zb_ditto_samevdev != 0) {
2613 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2614 (longlong_t)tzb->zb_ditto_samevdev);
2615 }
2616
2617 if (dump_opt['b'] >= 2) {
2618 int l, t, level;
2619 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2620 "\t avg\t comp\t%%Total\tType\n");
2621
2622 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2623 char csize[32], lsize[32], psize[32], asize[32];
2624 char avg[32], gang[32];
2625 char *typename;
2626
2627 if (t < DMU_OT_NUMTYPES)
2628 typename = dmu_ot[t].ot_name;
2629 else
2630 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2631
2632 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2633 (void) printf("%6s\t%5s\t%5s\t%5s"
2634 "\t%5s\t%5s\t%6s\t%s\n",
2635 "-",
2636 "-",
2637 "-",
2638 "-",
2639 "-",
2640 "-",
2641 "-",
2642 typename);
2643 continue;
2644 }
2645
2646 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2647 level = (l == -1 ? ZB_TOTAL : l);
2648 zb = &zcb.zcb_type[level][t];
2649
2650 if (zb->zb_asize == 0)
2651 continue;
2652
2653 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2654 continue;
2655
2656 if (level == 0 && zb->zb_asize ==
2657 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2658 continue;
2659
2660 zdb_nicenum(zb->zb_count, csize);
2661 zdb_nicenum(zb->zb_lsize, lsize);
2662 zdb_nicenum(zb->zb_psize, psize);
2663 zdb_nicenum(zb->zb_asize, asize);
2664 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2665 zdb_nicenum(zb->zb_gangs, gang);
2666
2667 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2668 "\t%5.2f\t%6.2f\t",
2669 csize, lsize, psize, asize, avg,
2670 (double)zb->zb_lsize / zb->zb_psize,
2671 100.0 * zb->zb_asize / tzb->zb_asize);
2672
2673 if (level == ZB_TOTAL)
2674 (void) printf("%s\n", typename);
2675 else
2676 (void) printf(" L%d %s\n",
2677 level, typename);
2678
2679 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
2680 (void) printf("\t number of ganged "
2681 "blocks: %s\n", gang);
2682 }
2683
2684 if (dump_opt['b'] >= 4) {
2685 (void) printf("psize "
2686 "(in 512-byte sectors): "
2687 "number of blocks\n");
2688 dump_histogram(zb->zb_psize_histogram,
2689 PSIZE_HISTO_SIZE, 0);
2690 }
2691 }
2692 }
2693 }
2694
2695 (void) printf("\n");
2696
2697 if (leaks)
2698 return (2);
2699
2700 if (zcb.zcb_haderrors)
2701 return (3);
2702
2703 return (0);
2704 }
2705
2706 typedef struct zdb_ddt_entry {
2707 ddt_key_t zdde_key;
2708 uint64_t zdde_ref_blocks;
2709 uint64_t zdde_ref_lsize;
2710 uint64_t zdde_ref_psize;
2711 uint64_t zdde_ref_dsize;
2712 avl_node_t zdde_node;
2713 } zdb_ddt_entry_t;
2714
2715 /* ARGSUSED */
2716 static int
2717 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2718 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2719 {
2720 avl_tree_t *t = arg;
2721 avl_index_t where;
2722 zdb_ddt_entry_t *zdde, zdde_search;
2723
2724 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
2725 return (0);
2726
2727 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2728 (void) printf("traversing objset %llu, %llu objects, "
2729 "%lu blocks so far\n",
2730 (u_longlong_t)zb->zb_objset,
2731 (u_longlong_t)BP_GET_FILL(bp),
2732 avl_numnodes(t));
2733 }
2734
2735 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2736 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2737 return (0);
2738
2739 ddt_key_fill(&zdde_search.zdde_key, bp);
2740
2741 zdde = avl_find(t, &zdde_search, &where);
2742
2743 if (zdde == NULL) {
2744 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2745 zdde->zdde_key = zdde_search.zdde_key;
2746 avl_insert(t, zdde, where);
2747 }
2748
2749 zdde->zdde_ref_blocks += 1;
2750 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2751 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2752 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2753
2754 return (0);
2755 }
2756
2757 static void
2758 dump_simulated_ddt(spa_t *spa)
2759 {
2760 avl_tree_t t;
2761 void *cookie = NULL;
2762 zdb_ddt_entry_t *zdde;
2763 ddt_histogram_t ddh_total = { 0 };
2764 ddt_stat_t dds_total = { 0 };
2765
2766 avl_create(&t, ddt_entry_compare,
2767 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2768
2769 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2770
2771 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2772 zdb_ddt_add_cb, &t);
2773
2774 spa_config_exit(spa, SCL_CONFIG, FTAG);
2775
2776 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2777 ddt_stat_t dds;
2778 uint64_t refcnt = zdde->zdde_ref_blocks;
2779 ASSERT(refcnt != 0);
2780
2781 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2782 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2783 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2784 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2785
2786 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2787 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2788 dds.dds_ref_psize = zdde->zdde_ref_psize;
2789 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2790
2791 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
2792 &dds, 0);
2793
2794 umem_free(zdde, sizeof (*zdde));
2795 }
2796
2797 avl_destroy(&t);
2798
2799 ddt_histogram_stat(&dds_total, &ddh_total);
2800
2801 (void) printf("Simulated DDT histogram:\n");
2802
2803 zpool_dump_ddt(&dds_total, &ddh_total);
2804
2805 dump_dedup_ratio(&dds_total);
2806 }
2807
2808 static void
2809 dump_zpool(spa_t *spa)
2810 {
2811 dsl_pool_t *dp = spa_get_dsl(spa);
2812 int rc = 0;
2813
2814 if (dump_opt['S']) {
2815 dump_simulated_ddt(spa);
2816 return;
2817 }
2818
2819 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2820 (void) printf("\nCached configuration:\n");
2821 dump_nvlist(spa->spa_config, 8);
2822 }
2823
2824 if (dump_opt['C'])
2825 dump_config(spa);
2826
2827 if (dump_opt['u'])
2828 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2829
2830 if (dump_opt['D'])
2831 dump_all_ddts(spa);
2832
2833 if (dump_opt['d'] > 2 || dump_opt['m'])
2834 dump_metaslabs(spa);
2835
2836 if (dump_opt['d'] || dump_opt['i']) {
2837 dump_dir(dp->dp_meta_objset);
2838 if (dump_opt['d'] >= 3) {
2839 dump_bpobj(&spa->spa_deferred_bpobj,
2840 "Deferred frees", 0);
2841 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2842 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2843 "Pool snapshot frees", 0);
2844 }
2845
2846 if (spa_feature_is_active(spa,
2847 SPA_FEATURE_ASYNC_DESTROY)) {
2848 dump_bptree(spa->spa_meta_objset,
2849 spa->spa_dsl_pool->dp_bptree_obj,
2850 "Pool dataset frees");
2851 }
2852 dump_dtl(spa->spa_root_vdev, 0);
2853 }
2854 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
2855 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
2856 }
2857 if (dump_opt['b'] || dump_opt['c'])
2858 rc = dump_block_stats(spa);
2859
2860 if (rc == 0)
2861 rc = verify_spacemap_refcounts(spa);
2862
2863 if (dump_opt['s'])
2864 show_pool_stats(spa);
2865
2866 if (dump_opt['h'])
2867 dump_history(spa);
2868
2869 if (rc != 0)
2870 exit(rc);
2871 }
2872
2873 #define ZDB_FLAG_CHECKSUM 0x0001
2874 #define ZDB_FLAG_DECOMPRESS 0x0002
2875 #define ZDB_FLAG_BSWAP 0x0004
2876 #define ZDB_FLAG_GBH 0x0008
2877 #define ZDB_FLAG_INDIRECT 0x0010
2878 #define ZDB_FLAG_PHYS 0x0020
2879 #define ZDB_FLAG_RAW 0x0040
2880 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
2881
2882 int flagbits[256];
2883
2884 static void
2885 zdb_print_blkptr(blkptr_t *bp, int flags)
2886 {
2887 char blkbuf[BP_SPRINTF_LEN];
2888
2889 if (flags & ZDB_FLAG_BSWAP)
2890 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
2891
2892 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2893 (void) printf("%s\n", blkbuf);
2894 }
2895
2896 static void
2897 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
2898 {
2899 int i;
2900
2901 for (i = 0; i < nbps; i++)
2902 zdb_print_blkptr(&bp[i], flags);
2903 }
2904
2905 static void
2906 zdb_dump_gbh(void *buf, int flags)
2907 {
2908 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
2909 }
2910
2911 static void
2912 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
2913 {
2914 if (flags & ZDB_FLAG_BSWAP)
2915 byteswap_uint64_array(buf, size);
2916 (void) write(1, buf, size);
2917 }
2918
2919 static void
2920 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
2921 {
2922 uint64_t *d = (uint64_t *)buf;
2923 int nwords = size / sizeof (uint64_t);
2924 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
2925 int i, j;
2926 char *hdr, *c;
2927
2928
2929 if (do_bswap)
2930 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
2931 else
2932 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
2933
2934 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
2935
2936 for (i = 0; i < nwords; i += 2) {
2937 (void) printf("%06llx: %016llx %016llx ",
2938 (u_longlong_t)(i * sizeof (uint64_t)),
2939 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
2940 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
2941
2942 c = (char *)&d[i];
2943 for (j = 0; j < 2 * sizeof (uint64_t); j++)
2944 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
2945 (void) printf("\n");
2946 }
2947 }
2948
2949 /*
2950 * There are two acceptable formats:
2951 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
2952 * child[.child]* - For example: 0.1.1
2953 *
2954 * The second form can be used to specify arbitrary vdevs anywhere
2955 * in the heirarchy. For example, in a pool with a mirror of
2956 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
2957 */
2958 static vdev_t *
2959 zdb_vdev_lookup(vdev_t *vdev, char *path)
2960 {
2961 char *s, *p, *q;
2962 int i;
2963
2964 if (vdev == NULL)
2965 return (NULL);
2966
2967 /* First, assume the x.x.x.x format */
2968 i = (int)strtoul(path, &s, 10);
2969 if (s == path || (s && *s != '.' && *s != '\0'))
2970 goto name;
2971 if (i < 0 || i >= vdev->vdev_children)
2972 return (NULL);
2973
2974 vdev = vdev->vdev_child[i];
2975 if (*s == '\0')
2976 return (vdev);
2977 return (zdb_vdev_lookup(vdev, s+1));
2978
2979 name:
2980 for (i = 0; i < vdev->vdev_children; i++) {
2981 vdev_t *vc = vdev->vdev_child[i];
2982
2983 if (vc->vdev_path == NULL) {
2984 vc = zdb_vdev_lookup(vc, path);
2985 if (vc == NULL)
2986 continue;
2987 else
2988 return (vc);
2989 }
2990
2991 p = strrchr(vc->vdev_path, '/');
2992 p = p ? p + 1 : vc->vdev_path;
2993 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
2994
2995 if (strcmp(vc->vdev_path, path) == 0)
2996 return (vc);
2997 if (strcmp(p, path) == 0)
2998 return (vc);
2999 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3000 return (vc);
3001 }
3002
3003 return (NULL);
3004 }
3005
3006 /*
3007 * Read a block from a pool and print it out. The syntax of the
3008 * block descriptor is:
3009 *
3010 * pool:vdev_specifier:offset:size[:flags]
3011 *
3012 * pool - The name of the pool you wish to read from
3013 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3014 * offset - offset, in hex, in bytes
3015 * size - Amount of data to read, in hex, in bytes
3016 * flags - A string of characters specifying options
3017 * b: Decode a blkptr at given offset within block
3018 * *c: Calculate and display checksums
3019 * d: Decompress data before dumping
3020 * e: Byteswap data before dumping
3021 * g: Display data as a gang block header
3022 * i: Display as an indirect block
3023 * p: Do I/O to physical offset
3024 * r: Dump raw data to stdout
3025 *
3026 * * = not yet implemented
3027 */
3028 static void
3029 zdb_read_block(char *thing, spa_t *spa)
3030 {
3031 blkptr_t blk, *bp = &blk;
3032 dva_t *dva = bp->blk_dva;
3033 int flags = 0;
3034 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3035 zio_t *zio;
3036 vdev_t *vd;
3037 void *pbuf, *lbuf, *buf;
3038 char *s, *p, *dup, *vdev, *flagstr;
3039 int i, error;
3040
3041 dup = strdup(thing);
3042 s = strtok(dup, ":");
3043 vdev = s ? s : "";
3044 s = strtok(NULL, ":");
3045 offset = strtoull(s ? s : "", NULL, 16);
3046 s = strtok(NULL, ":");
3047 size = strtoull(s ? s : "", NULL, 16);
3048 s = strtok(NULL, ":");
3049 flagstr = s ? s : "";
3050
3051 s = NULL;
3052 if (size == 0)
3053 s = "size must not be zero";
3054 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3055 s = "size must be a multiple of sector size";
3056 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3057 s = "offset must be a multiple of sector size";
3058 if (s) {
3059 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3060 free(dup);
3061 return;
3062 }
3063
3064 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3065 for (i = 0; flagstr[i]; i++) {
3066 int bit = flagbits[(uchar_t)flagstr[i]];
3067
3068 if (bit == 0) {
3069 (void) printf("***Invalid flag: %c\n",
3070 flagstr[i]);
3071 continue;
3072 }
3073 flags |= bit;
3074
3075 /* If it's not something with an argument, keep going */
3076 if ((bit & (ZDB_FLAG_CHECKSUM |
3077 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3078 continue;
3079
3080 p = &flagstr[i + 1];
3081 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3082 blkptr_offset = strtoull(p, &p, 16);
3083 if (*p != ':' && *p != '\0') {
3084 (void) printf("***Invalid flag arg: '%s'\n", s);
3085 free(dup);
3086 return;
3087 }
3088 }
3089 }
3090
3091 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3092 if (vd == NULL) {
3093 (void) printf("***Invalid vdev: %s\n", vdev);
3094 free(dup);
3095 return;
3096 } else {
3097 if (vd->vdev_path)
3098 (void) fprintf(stderr, "Found vdev: %s\n",
3099 vd->vdev_path);
3100 else
3101 (void) fprintf(stderr, "Found vdev type: %s\n",
3102 vd->vdev_ops->vdev_op_type);
3103 }
3104
3105 psize = size;
3106 lsize = size;
3107
3108 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3109 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3110
3111 BP_ZERO(bp);
3112
3113 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3114 DVA_SET_OFFSET(&dva[0], offset);
3115 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3116 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3117
3118 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3119
3120 BP_SET_LSIZE(bp, lsize);
3121 BP_SET_PSIZE(bp, psize);
3122 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3123 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3124 BP_SET_TYPE(bp, DMU_OT_NONE);
3125 BP_SET_LEVEL(bp, 0);
3126 BP_SET_DEDUP(bp, 0);
3127 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3128
3129 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3130 zio = zio_root(spa, NULL, NULL, 0);
3131
3132 if (vd == vd->vdev_top) {
3133 /*
3134 * Treat this as a normal block read.
3135 */
3136 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3137 ZIO_PRIORITY_SYNC_READ,
3138 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3139 } else {
3140 /*
3141 * Treat this as a vdev child I/O.
3142 */
3143 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3144 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3145 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3146 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3147 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3148 }
3149
3150 error = zio_wait(zio);
3151 spa_config_exit(spa, SCL_STATE, FTAG);
3152
3153 if (error) {
3154 (void) printf("Read of %s failed, error: %d\n", thing, error);
3155 goto out;
3156 }
3157
3158 if (flags & ZDB_FLAG_DECOMPRESS) {
3159 /*
3160 * We don't know how the data was compressed, so just try
3161 * every decompress function at every inflated blocksize.
3162 */
3163 enum zio_compress c;
3164 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3165 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3166
3167 bcopy(pbuf, pbuf2, psize);
3168
3169 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3170 SPA_MAXBLOCKSIZE - psize) == 0);
3171
3172 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3173 SPA_MAXBLOCKSIZE - psize) == 0);
3174
3175 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3176 lsize -= SPA_MINBLOCKSIZE) {
3177 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3178 if (zio_decompress_data(c, pbuf, lbuf,
3179 psize, lsize) == 0 &&
3180 zio_decompress_data(c, pbuf2, lbuf2,
3181 psize, lsize) == 0 &&
3182 bcmp(lbuf, lbuf2, lsize) == 0)
3183 break;
3184 }
3185 if (c != ZIO_COMPRESS_FUNCTIONS)
3186 break;
3187 lsize -= SPA_MINBLOCKSIZE;
3188 }
3189
3190 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3191 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3192
3193 if (lsize <= psize) {
3194 (void) printf("Decompress of %s failed\n", thing);
3195 goto out;
3196 }
3197 buf = lbuf;
3198 size = lsize;
3199 } else {
3200 buf = pbuf;
3201 size = psize;
3202 }
3203
3204 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3205 zdb_print_blkptr((blkptr_t *)(void *)
3206 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3207 else if (flags & ZDB_FLAG_RAW)
3208 zdb_dump_block_raw(buf, size, flags);
3209 else if (flags & ZDB_FLAG_INDIRECT)
3210 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3211 flags);
3212 else if (flags & ZDB_FLAG_GBH)
3213 zdb_dump_gbh(buf, flags);
3214 else
3215 zdb_dump_block(thing, buf, size, flags);
3216
3217 out:
3218 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3219 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3220 free(dup);
3221 }
3222
3223 static boolean_t
3224 pool_match(nvlist_t *cfg, char *tgt)
3225 {
3226 uint64_t v, guid = strtoull(tgt, NULL, 0);
3227 char *s;
3228
3229 if (guid != 0) {
3230 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3231 return (v == guid);
3232 } else {
3233 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3234 return (strcmp(s, tgt) == 0);
3235 }
3236 return (B_FALSE);
3237 }
3238
3239 static char *
3240 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3241 {
3242 nvlist_t *pools;
3243 nvlist_t *match = NULL;
3244 char *name = NULL;
3245 char *sepp = NULL;
3246 char sep;
3247 int count = 0;
3248 importargs_t args = { 0 };
3249
3250 args.paths = dirc;
3251 args.path = dirv;
3252 args.can_be_active = B_TRUE;
3253
3254 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3255 sep = *sepp;
3256 *sepp = '\0';
3257 }
3258
3259 pools = zpool_search_import(g_zfs, &args);
3260
3261 if (pools != NULL) {
3262 nvpair_t *elem = NULL;
3263 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3264 verify(nvpair_value_nvlist(elem, configp) == 0);
3265 if (pool_match(*configp, *target)) {
3266 count++;
3267 if (match != NULL) {
3268 /* print previously found config */
3269 if (name != NULL) {
3270 (void) printf("%s\n", name);
3271 dump_nvlist(match, 8);
3272 name = NULL;
3273 }
3274 (void) printf("%s\n",
3275 nvpair_name(elem));
3276 dump_nvlist(*configp, 8);
3277 } else {
3278 match = *configp;
3279 name = nvpair_name(elem);
3280 }
3281 }
3282 }
3283 }
3284 if (count > 1)
3285 (void) fatal("\tMatched %d pools - use pool GUID "
3286 "instead of pool name or \n"
3287 "\tpool name part of a dataset name to select pool", count);
3288
3289 if (sepp)
3290 *sepp = sep;
3291 /*
3292 * If pool GUID was specified for pool id, replace it with pool name
3293 */
3294 if (name && (strstr(*target, name) != *target)) {
3295 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3296
3297 *target = umem_alloc(sz, UMEM_NOFAIL);
3298 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3299 }
3300
3301 *configp = name ? match : NULL;
3302
3303 return (name);
3304 }
3305
3306 int
3307 main(int argc, char **argv)
3308 {
3309 int i, c;
3310 struct rlimit rl = { 1024, 1024 };
3311 spa_t *spa = NULL;
3312 objset_t *os = NULL;
3313 int dump_all = 1;
3314 int verbose = 0;
3315 int error = 0;
3316 char **searchdirs = NULL;
3317 int nsearch = 0;
3318 char *target;
3319 nvlist_t *policy = NULL;
3320 uint64_t max_txg = UINT64_MAX;
3321 int rewind = ZPOOL_NEVER_REWIND;
3322
3323 (void) setrlimit(RLIMIT_NOFILE, &rl);
3324 (void) enable_extended_FILE_stdio(-1, -1);
3325
3326 dprintf_setup(&argc, argv);
3327
3328 while ((c = getopt(argc, argv, "bcdhilmM:suCDRSAFLXevp:t:U:P")) != -1) {
3329 switch (c) {
3330 case 'b':
3331 case 'c':
3332 case 'd':
3333 case 'h':
3334 case 'i':
3335 case 'l':
3336 case 'm':
3337 case 's':
3338 case 'u':
3339 case 'C':
3340 case 'D':
3341 case 'R':
3342 case 'S':
3343 dump_opt[c]++;
3344 dump_all = 0;
3345 break;
3346 case 'A':
3347 case 'F':
3348 case 'L':
3349 case 'X':
3350 case 'e':
3351 case 'P':
3352 dump_opt[c]++;
3353 break;
3354 case 'v':
3355 verbose++;
3356 break;
3357 case 'M':
3358 max_inflight = strtoull(optarg, NULL, 0);
3359 if (max_inflight == 0) {
3360 (void) fprintf(stderr, "maximum number "
3361 "of inflight I/Os must be greater "
3362 "than 0\n");
3363 usage();
3364 }
3365 break;
3366 case 'p':
3367 if (searchdirs == NULL) {
3368 searchdirs = umem_alloc(sizeof (char *),
3369 UMEM_NOFAIL);
3370 } else {
3371 char **tmp = umem_alloc((nsearch + 1) *
3372 sizeof (char *), UMEM_NOFAIL);
3373 bcopy(searchdirs, tmp, nsearch *
3374 sizeof (char *));
3375 umem_free(searchdirs,
3376 nsearch * sizeof (char *));
3377 searchdirs = tmp;
3378 }
3379 searchdirs[nsearch++] = optarg;
3380 break;
3381 case 't':
3382 max_txg = strtoull(optarg, NULL, 0);
3383 if (max_txg < TXG_INITIAL) {
3384 (void) fprintf(stderr, "incorrect txg "
3385 "specified: %s\n", optarg);
3386 usage();
3387 }
3388 break;
3389 case 'U':
3390 spa_config_path = optarg;
3391 break;
3392 default:
3393 usage();
3394 break;
3395 }
3396 }
3397
3398 if (!dump_opt['e'] && searchdirs != NULL) {
3399 (void) fprintf(stderr, "-p option requires use of -e\n");
3400 usage();
3401 }
3402
3403 kernel_init(FREAD);
3404 g_zfs = libzfs_init();
3405 ASSERT(g_zfs != NULL);
3406
3407 if (dump_all)
3408 verbose = MAX(verbose, 1);
3409
3410 for (c = 0; c < 256; c++) {
3411 if (dump_all && !strchr("elAFLRSXP", c))
3412 dump_opt[c] = 1;
3413 if (dump_opt[c])
3414 dump_opt[c] += verbose;
3415 }
3416
3417 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3418 zfs_recover = (dump_opt['A'] > 1);
3419
3420 argc -= optind;
3421 argv += optind;
3422
3423 if (argc < 2 && dump_opt['R'])
3424 usage();
3425 if (argc < 1) {
3426 if (!dump_opt['e'] && dump_opt['C']) {
3427 dump_cachefile(spa_config_path);
3428 return (0);
3429 }
3430 usage();
3431 }
3432
3433 if (dump_opt['l']) {
3434 dump_label(argv[0]);
3435 return (0);
3436 }
3437
3438 if (dump_opt['X'] || dump_opt['F'])
3439 rewind = ZPOOL_DO_REWIND |
3440 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3441
3442 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3443 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3444 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3445 fatal("internal error: %s", strerror(ENOMEM));
3446
3447 error = 0;
3448 target = argv[0];
3449
3450 if (dump_opt['e']) {
3451 nvlist_t *cfg = NULL;
3452 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3453
3454 error = ENOENT;
3455 if (name) {
3456 if (dump_opt['C'] > 1) {
3457 (void) printf("\nConfiguration for import:\n");
3458 dump_nvlist(cfg, 8);
3459 }
3460 if (nvlist_add_nvlist(cfg,
3461 ZPOOL_REWIND_POLICY, policy) != 0) {
3462 fatal("can't open '%s': %s",
3463 target, strerror(ENOMEM));
3464 }
3465 if ((error = spa_import(name, cfg, NULL,
3466 ZFS_IMPORT_MISSING_LOG)) != 0) {
3467 error = spa_import(name, cfg, NULL,
3468 ZFS_IMPORT_VERBATIM);
3469 }
3470 }
3471 }
3472
3473 if (error == 0) {
3474 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3475 error = spa_open_rewind(target, &spa, FTAG, policy,
3476 NULL);
3477 if (error) {
3478 /*
3479 * If we're missing the log device then
3480 * try opening the pool after clearing the
3481 * log state.
3482 */
3483 mutex_enter(&spa_namespace_lock);
3484 if ((spa = spa_lookup(target)) != NULL &&
3485 spa->spa_log_state == SPA_LOG_MISSING) {
3486 spa->spa_log_state = SPA_LOG_CLEAR;
3487 error = 0;
3488 }
3489 mutex_exit(&spa_namespace_lock);
3490
3491 if (!error) {
3492 error = spa_open_rewind(target, &spa,
3493 FTAG, policy, NULL);
3494 }
3495 }
3496 } else {
3497 error = dmu_objset_own(target, DMU_OST_ANY,
3498 B_TRUE, FTAG, &os);
3499 }
3500 }
3501 nvlist_free(policy);
3502
3503 if (error)
3504 fatal("can't open '%s': %s", target, strerror(error));
3505
3506 argv++;
3507 argc--;
3508 if (!dump_opt['R']) {
3509 if (argc > 0) {
3510 zopt_objects = argc;
3511 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3512 for (i = 0; i < zopt_objects; i++) {
3513 errno = 0;
3514 zopt_object[i] = strtoull(argv[i], NULL, 0);
3515 if (zopt_object[i] == 0 && errno != 0)
3516 fatal("bad number %s: %s",
3517 argv[i], strerror(errno));
3518 }
3519 }
3520 if (os != NULL) {
3521 dump_dir(os);
3522 } else if (zopt_objects > 0 && !dump_opt['m']) {
3523 dump_dir(spa->spa_meta_objset);
3524 } else {
3525 dump_zpool(spa);
3526 }
3527 } else {
3528 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3529 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3530 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3531 flagbits['e'] = ZDB_FLAG_BSWAP;
3532 flagbits['g'] = ZDB_FLAG_GBH;
3533 flagbits['i'] = ZDB_FLAG_INDIRECT;
3534 flagbits['p'] = ZDB_FLAG_PHYS;
3535 flagbits['r'] = ZDB_FLAG_RAW;
3536
3537 for (i = 0; i < argc; i++)
3538 zdb_read_block(argv[i], spa);
3539 }
3540
3541 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3542
3543 fuid_table_destroy();
3544 sa_loaded = B_FALSE;
3545
3546 libzfs_fini(g_zfs);
3547 kernel_fini();
3548
3549 return (0);
3550 }
Unleashed OS