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8809 libzpool should leverage work done in libfakekernel
[unleashed.git] / usr / src / cmd / zdb / zdb.c
blob657b783fdca78b1c84fd9678c424a6be2fbd2462
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) 2011, 2017 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2017 Nexenta Systems, Inc.
27 * Copyright 2017 RackTop Systems.
28 */
29
30 #include <stdio.h>
31 #include <unistd.h>
32 #include <stdio_ext.h>
33 #include <stdlib.h>
34 #include <ctype.h>
35 #include <sys/zfs_context.h>
36 #include <sys/spa.h>
37 #include <sys/spa_impl.h>
38 #include <sys/dmu.h>
39 #include <sys/zap.h>
40 #include <sys/fs/zfs.h>
41 #include <sys/zfs_znode.h>
42 #include <sys/zfs_sa.h>
43 #include <sys/sa.h>
44 #include <sys/sa_impl.h>
45 #include <sys/vdev.h>
46 #include <sys/vdev_impl.h>
47 #include <sys/metaslab_impl.h>
48 #include <sys/dmu_objset.h>
49 #include <sys/dsl_dir.h>
50 #include <sys/dsl_dataset.h>
51 #include <sys/dsl_pool.h>
52 #include <sys/dbuf.h>
53 #include <sys/zil.h>
54 #include <sys/zil_impl.h>
55 #include <sys/stat.h>
56 #include <sys/resource.h>
57 #include <sys/dmu_traverse.h>
58 #include <sys/zio_checksum.h>
59 #include <sys/zio_compress.h>
60 #include <sys/zfs_fuid.h>
61 #include <sys/arc.h>
62 #include <sys/ddt.h>
63 #include <sys/zfeature.h>
64 #include <sys/abd.h>
65 #include <sys/blkptr.h>
66 #include <zfs_comutil.h>
67 #include <libcmdutils.h>
68 #undef verify
69 #include <libzfs.h>
70
71 #include "zdb.h"
72
73 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
74 zio_compress_table[(idx)].ci_name : "UNKNOWN")
75 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
76 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
77 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
78 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
79 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
80 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
81 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \
82 DMU_OT_ZAP_OTHER : \
83 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \
84 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES)
85
86 #ifndef lint
87 extern int reference_tracking_enable;
88 extern boolean_t zfs_recover;
89 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
90 extern int zfs_vdev_async_read_max_active;
91 extern int aok;
92 #else
93 int reference_tracking_enable;
94 boolean_t zfs_recover;
95 uint64_t zfs_arc_max, zfs_arc_meta_limit;
96 int zfs_vdev_async_read_max_active;
97 int aok;
98 #endif
99
100 static const char cmdname[] = "zdb";
101 uint8_t dump_opt[256];
102
103 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
104
105 uint64_t *zopt_object = NULL;
106 static unsigned zopt_objects = 0;
107 libzfs_handle_t *g_zfs;
108 uint64_t max_inflight = 1000;
109
110 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
111
112 /*
113 * These libumem hooks provide a reasonable set of defaults for the allocator's
114 * debugging facilities.
115 */
116 const char *
117 _umem_debug_init()
118 {
119 return ("default,verbose"); /* $UMEM_DEBUG setting */
120 }
121
122 const char *
123 _umem_logging_init(void)
124 {
125 return ("fail,contents"); /* $UMEM_LOGGING setting */
126 }
127
128 static void
129 usage(void)
130 {
131 (void) fprintf(stderr,
132 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] "
133 "[-I <inflight I/Os>]\n"
134 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
135 "\t\t[<poolname> [<object> ...]]\n"
136 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> "
137 "[<object> ...]\n"
138 "\t%s -C [-A] [-U <cache>]\n"
139 "\t%s -l [-Aqu] <device>\n"
140 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
141 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
142 "\t%s -O <dataset> <path>\n"
143 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
144 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
145 "\t%s -E [-A] word0:word1:...:word15\n"
146 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
147 "<poolname>\n\n",
148 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
149 cmdname, cmdname);
150
151 (void) fprintf(stderr, " Dataset name must include at least one "
152 "separator character '/' or '@'\n");
153 (void) fprintf(stderr, " If dataset name is specified, only that "
154 "dataset is dumped\n");
155 (void) fprintf(stderr, " If object numbers are specified, only "
156 "those objects are dumped\n\n");
157 (void) fprintf(stderr, " Options to control amount of output:\n");
158 (void) fprintf(stderr, " -b block statistics\n");
159 (void) fprintf(stderr, " -c checksum all metadata (twice for "
160 "all data) blocks\n");
161 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
162 (void) fprintf(stderr, " -d dataset(s)\n");
163 (void) fprintf(stderr, " -D dedup statistics\n");
164 (void) fprintf(stderr, " -E decode and display block from an "
165 "embedded block pointer\n");
166 (void) fprintf(stderr, " -h pool history\n");
167 (void) fprintf(stderr, " -i intent logs\n");
168 (void) fprintf(stderr, " -l read label contents\n");
169 (void) fprintf(stderr, " -L disable leak tracking (do not "
170 "load spacemaps)\n");
171 (void) fprintf(stderr, " -m metaslabs\n");
172 (void) fprintf(stderr, " -M metaslab groups\n");
173 (void) fprintf(stderr, " -O perform object lookups by path\n");
174 (void) fprintf(stderr, " -R read and display block from a "
175 "device\n");
176 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
177 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
178 (void) fprintf(stderr, " -v verbose (applies to all "
179 "others)\n\n");
180 (void) fprintf(stderr, " Below options are intended for use "
181 "with other options:\n");
182 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
183 "panic recovery (-AA) or both (-AAA)\n");
184 (void) fprintf(stderr, " -e pool is exported/destroyed/"
185 "has altroot/not in a cachefile\n");
186 (void) fprintf(stderr, " -F attempt automatic rewind within "
187 "safe range of transaction groups\n");
188 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
189 "exiting\n");
190 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
191 "specify the maximum number of "
192 "checksumming I/Os [default is 200]\n");
193 (void) fprintf(stderr, " -o <variable>=<value> set global "
194 "variable to an unsigned 32-bit integer value\n");
195 (void) fprintf(stderr, " -p <path> -- use one or more with "
196 "-e to specify path to vdev dir\n");
197 (void) fprintf(stderr, " -P print numbers in parseable form\n");
198 (void) fprintf(stderr, " -q don't print label contents\n");
199 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
200 "searching for uberblocks\n");
201 (void) fprintf(stderr, " -u uberblock\n");
202 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
203 "cachefile\n");
204 (void) fprintf(stderr, " -V do verbatim import\n");
205 (void) fprintf(stderr, " -x <dumpdir> -- "
206 "dump all read blocks into specified directory\n");
207 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
208 "work with dataset)\n\n");
209 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
210 "to make only that option verbose\n");
211 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
212 exit(1);
213 }
214
215 static void
216 dump_debug_buffer()
217 {
218 if (dump_opt['G']) {
219 (void) printf("\n");
220 zfs_dbgmsg_print("zdb");
221 }
222 }
223
224 /*
225 * Called for usage errors that are discovered after a call to spa_open(),
226 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
227 */
228
229 static void
230 fatal(const char *fmt, ...)
231 {
232 va_list ap;
233
234 va_start(ap, fmt);
235 (void) fprintf(stderr, "%s: ", cmdname);
236 (void) vfprintf(stderr, fmt, ap);
237 va_end(ap);
238 (void) fprintf(stderr, "\n");
239
240 dump_debug_buffer();
241
242 exit(1);
243 }
244
245 /* ARGSUSED */
246 static void
247 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
248 {
249 nvlist_t *nv;
250 size_t nvsize = *(uint64_t *)data;
251 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
252
253 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
254
255 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
256
257 umem_free(packed, nvsize);
258
259 dump_nvlist(nv, 8);
260
261 nvlist_free(nv);
262 }
263
264 /* ARGSUSED */
265 static void
266 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
267 {
268 spa_history_phys_t *shp = data;
269
270 if (shp == NULL)
271 return;
272
273 (void) printf("\t\tpool_create_len = %llu\n",
274 (u_longlong_t)shp->sh_pool_create_len);
275 (void) printf("\t\tphys_max_off = %llu\n",
276 (u_longlong_t)shp->sh_phys_max_off);
277 (void) printf("\t\tbof = %llu\n",
278 (u_longlong_t)shp->sh_bof);
279 (void) printf("\t\teof = %llu\n",
280 (u_longlong_t)shp->sh_eof);
281 (void) printf("\t\trecords_lost = %llu\n",
282 (u_longlong_t)shp->sh_records_lost);
283 }
284
285 static void
286 zdb_nicenum(uint64_t num, char *buf, size_t buflen)
287 {
288 if (dump_opt['P'])
289 (void) snprintf(buf, buflen, "%llu", (longlong_t)num);
290 else
291 nicenum(num, buf, sizeof (buf));
292 }
293
294 static const char histo_stars[] = "****************************************";
295 static const uint64_t histo_width = sizeof (histo_stars) - 1;
296
297 static void
298 dump_histogram(const uint64_t *histo, int size, int offset)
299 {
300 int i;
301 int minidx = size - 1;
302 int maxidx = 0;
303 uint64_t max = 0;
304
305 for (i = 0; i < size; i++) {
306 if (histo[i] > max)
307 max = histo[i];
308 if (histo[i] > 0 && i > maxidx)
309 maxidx = i;
310 if (histo[i] > 0 && i < minidx)
311 minidx = i;
312 }
313
314 if (max < histo_width)
315 max = histo_width;
316
317 for (i = minidx; i <= maxidx; i++) {
318 (void) printf("\t\t\t%3u: %6llu %s\n",
319 i + offset, (u_longlong_t)histo[i],
320 &histo_stars[(max - histo[i]) * histo_width / max]);
321 }
322 }
323
324 static void
325 dump_zap_stats(objset_t *os, uint64_t object)
326 {
327 int error;
328 zap_stats_t zs;
329
330 error = zap_get_stats(os, object, &zs);
331 if (error)
332 return;
333
334 if (zs.zs_ptrtbl_len == 0) {
335 ASSERT(zs.zs_num_blocks == 1);
336 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
337 (u_longlong_t)zs.zs_blocksize,
338 (u_longlong_t)zs.zs_num_entries);
339 return;
340 }
341
342 (void) printf("\tFat ZAP stats:\n");
343
344 (void) printf("\t\tPointer table:\n");
345 (void) printf("\t\t\t%llu elements\n",
346 (u_longlong_t)zs.zs_ptrtbl_len);
347 (void) printf("\t\t\tzt_blk: %llu\n",
348 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
349 (void) printf("\t\t\tzt_numblks: %llu\n",
350 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
351 (void) printf("\t\t\tzt_shift: %llu\n",
352 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
353 (void) printf("\t\t\tzt_blks_copied: %llu\n",
354 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
355 (void) printf("\t\t\tzt_nextblk: %llu\n",
356 (u_longlong_t)zs.zs_ptrtbl_nextblk);
357
358 (void) printf("\t\tZAP entries: %llu\n",
359 (u_longlong_t)zs.zs_num_entries);
360 (void) printf("\t\tLeaf blocks: %llu\n",
361 (u_longlong_t)zs.zs_num_leafs);
362 (void) printf("\t\tTotal blocks: %llu\n",
363 (u_longlong_t)zs.zs_num_blocks);
364 (void) printf("\t\tzap_block_type: 0x%llx\n",
365 (u_longlong_t)zs.zs_block_type);
366 (void) printf("\t\tzap_magic: 0x%llx\n",
367 (u_longlong_t)zs.zs_magic);
368 (void) printf("\t\tzap_salt: 0x%llx\n",
369 (u_longlong_t)zs.zs_salt);
370
371 (void) printf("\t\tLeafs with 2^n pointers:\n");
372 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
373
374 (void) printf("\t\tBlocks with n*5 entries:\n");
375 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
376
377 (void) printf("\t\tBlocks n/10 full:\n");
378 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
379
380 (void) printf("\t\tEntries with n chunks:\n");
381 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
382
383 (void) printf("\t\tBuckets with n entries:\n");
384 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
385 }
386
387 /*ARGSUSED*/
388 static void
389 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
390 {
391 }
392
393 /*ARGSUSED*/
394 static void
395 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
396 {
397 (void) printf("\tUNKNOWN OBJECT TYPE\n");
398 }
399
400 /*ARGSUSED*/
401 static void
402 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
403 {
404 }
405
406 /*ARGSUSED*/
407 static void
408 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
409 {
410 }
411
412 /*ARGSUSED*/
413 static void
414 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
415 {
416 zap_cursor_t zc;
417 zap_attribute_t attr;
418 void *prop;
419 unsigned i;
420
421 dump_zap_stats(os, object);
422 (void) printf("\n");
423
424 for (zap_cursor_init(&zc, os, object);
425 zap_cursor_retrieve(&zc, &attr) == 0;
426 zap_cursor_advance(&zc)) {
427 (void) printf("\t\t%s = ", attr.za_name);
428 if (attr.za_num_integers == 0) {
429 (void) printf("\n");
430 continue;
431 }
432 prop = umem_zalloc(attr.za_num_integers *
433 attr.za_integer_length, UMEM_NOFAIL);
434 (void) zap_lookup(os, object, attr.za_name,
435 attr.za_integer_length, attr.za_num_integers, prop);
436 if (attr.za_integer_length == 1) {
437 (void) printf("%s", (char *)prop);
438 } else {
439 for (i = 0; i < attr.za_num_integers; i++) {
440 switch (attr.za_integer_length) {
441 case 2:
442 (void) printf("%u ",
443 ((uint16_t *)prop)[i]);
444 break;
445 case 4:
446 (void) printf("%u ",
447 ((uint32_t *)prop)[i]);
448 break;
449 case 8:
450 (void) printf("%lld ",
451 (u_longlong_t)((int64_t *)prop)[i]);
452 break;
453 }
454 }
455 }
456 (void) printf("\n");
457 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
458 }
459 zap_cursor_fini(&zc);
460 }
461
462 static void
463 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
464 {
465 bpobj_phys_t *bpop = data;
466 char bytes[32], comp[32], uncomp[32];
467
468 /* make sure the output won't get truncated */
469 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
470 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
471 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
472
473 if (bpop == NULL)
474 return;
475
476 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes));
477 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp));
478 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp));
479
480 (void) printf("\t\tnum_blkptrs = %llu\n",
481 (u_longlong_t)bpop->bpo_num_blkptrs);
482 (void) printf("\t\tbytes = %s\n", bytes);
483 if (size >= BPOBJ_SIZE_V1) {
484 (void) printf("\t\tcomp = %s\n", comp);
485 (void) printf("\t\tuncomp = %s\n", uncomp);
486 }
487 if (size >= sizeof (*bpop)) {
488 (void) printf("\t\tsubobjs = %llu\n",
489 (u_longlong_t)bpop->bpo_subobjs);
490 (void) printf("\t\tnum_subobjs = %llu\n",
491 (u_longlong_t)bpop->bpo_num_subobjs);
492 }
493
494 if (dump_opt['d'] < 5)
495 return;
496
497 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
498 char blkbuf[BP_SPRINTF_LEN];
499 blkptr_t bp;
500
501 int err = dmu_read(os, object,
502 i * sizeof (bp), sizeof (bp), &bp, 0);
503 if (err != 0) {
504 (void) printf("got error %u from dmu_read\n", err);
505 break;
506 }
507 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
508 (void) printf("\t%s\n", blkbuf);
509 }
510 }
511
512 /* ARGSUSED */
513 static void
514 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
515 {
516 dmu_object_info_t doi;
517
518 VERIFY0(dmu_object_info(os, object, &doi));
519 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
520
521 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
522 if (err != 0) {
523 (void) printf("got error %u from dmu_read\n", err);
524 kmem_free(subobjs, doi.doi_max_offset);
525 return;
526 }
527
528 int64_t last_nonzero = -1;
529 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
530 if (subobjs[i] != 0)
531 last_nonzero = i;
532 }
533
534 for (int64_t i = 0; i <= last_nonzero; i++) {
535 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
536 }
537 kmem_free(subobjs, doi.doi_max_offset);
538 }
539
540 /*ARGSUSED*/
541 static void
542 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
543 {
544 dump_zap_stats(os, object);
545 /* contents are printed elsewhere, properly decoded */
546 }
547
548 /*ARGSUSED*/
549 static void
550 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
551 {
552 zap_cursor_t zc;
553 zap_attribute_t attr;
554
555 dump_zap_stats(os, object);
556 (void) printf("\n");
557
558 for (zap_cursor_init(&zc, os, object);
559 zap_cursor_retrieve(&zc, &attr) == 0;
560 zap_cursor_advance(&zc)) {
561 (void) printf("\t\t%s = ", attr.za_name);
562 if (attr.za_num_integers == 0) {
563 (void) printf("\n");
564 continue;
565 }
566 (void) printf(" %llx : [%d:%d:%d]\n",
567 (u_longlong_t)attr.za_first_integer,
568 (int)ATTR_LENGTH(attr.za_first_integer),
569 (int)ATTR_BSWAP(attr.za_first_integer),
570 (int)ATTR_NUM(attr.za_first_integer));
571 }
572 zap_cursor_fini(&zc);
573 }
574
575 /*ARGSUSED*/
576 static void
577 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
578 {
579 zap_cursor_t zc;
580 zap_attribute_t attr;
581 uint16_t *layout_attrs;
582 unsigned i;
583
584 dump_zap_stats(os, object);
585 (void) printf("\n");
586
587 for (zap_cursor_init(&zc, os, object);
588 zap_cursor_retrieve(&zc, &attr) == 0;
589 zap_cursor_advance(&zc)) {
590 (void) printf("\t\t%s = [", attr.za_name);
591 if (attr.za_num_integers == 0) {
592 (void) printf("\n");
593 continue;
594 }
595
596 VERIFY(attr.za_integer_length == 2);
597 layout_attrs = umem_zalloc(attr.za_num_integers *
598 attr.za_integer_length, UMEM_NOFAIL);
599
600 VERIFY(zap_lookup(os, object, attr.za_name,
601 attr.za_integer_length,
602 attr.za_num_integers, layout_attrs) == 0);
603
604 for (i = 0; i != attr.za_num_integers; i++)
605 (void) printf(" %d ", (int)layout_attrs[i]);
606 (void) printf("]\n");
607 umem_free(layout_attrs,
608 attr.za_num_integers * attr.za_integer_length);
609 }
610 zap_cursor_fini(&zc);
611 }
612
613 /*ARGSUSED*/
614 static void
615 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
616 {
617 zap_cursor_t zc;
618 zap_attribute_t attr;
619 const char *typenames[] = {
620 /* 0 */ "not specified",
621 /* 1 */ "FIFO",
622 /* 2 */ "Character Device",
623 /* 3 */ "3 (invalid)",
624 /* 4 */ "Directory",
625 /* 5 */ "5 (invalid)",
626 /* 6 */ "Block Device",
627 /* 7 */ "7 (invalid)",
628 /* 8 */ "Regular File",
629 /* 9 */ "9 (invalid)",
630 /* 10 */ "Symbolic Link",
631 /* 11 */ "11 (invalid)",
632 /* 12 */ "Socket",
633 /* 13 */ "Door",
634 /* 14 */ "Event Port",
635 /* 15 */ "15 (invalid)",
636 };
637
638 dump_zap_stats(os, object);
639 (void) printf("\n");
640
641 for (zap_cursor_init(&zc, os, object);
642 zap_cursor_retrieve(&zc, &attr) == 0;
643 zap_cursor_advance(&zc)) {
644 (void) printf("\t\t%s = %lld (type: %s)\n",
645 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
646 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
647 }
648 zap_cursor_fini(&zc);
649 }
650
651 static int
652 get_dtl_refcount(vdev_t *vd)
653 {
654 int refcount = 0;
655
656 if (vd->vdev_ops->vdev_op_leaf) {
657 space_map_t *sm = vd->vdev_dtl_sm;
658
659 if (sm != NULL &&
660 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
661 return (1);
662 return (0);
663 }
664
665 for (unsigned c = 0; c < vd->vdev_children; c++)
666 refcount += get_dtl_refcount(vd->vdev_child[c]);
667 return (refcount);
668 }
669
670 static int
671 get_metaslab_refcount(vdev_t *vd)
672 {
673 int refcount = 0;
674
675 if (vd->vdev_top == vd) {
676 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
677 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
678
679 if (sm != NULL &&
680 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
681 refcount++;
682 }
683 }
684 for (unsigned c = 0; c < vd->vdev_children; c++)
685 refcount += get_metaslab_refcount(vd->vdev_child[c]);
686
687 return (refcount);
688 }
689
690 static int
691 get_obsolete_refcount(vdev_t *vd)
692 {
693 int refcount = 0;
694
695 uint64_t obsolete_sm_obj = vdev_obsolete_sm_object(vd);
696 if (vd->vdev_top == vd && obsolete_sm_obj != 0) {
697 dmu_object_info_t doi;
698 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset,
699 obsolete_sm_obj, &doi));
700 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
701 refcount++;
702 }
703 } else {
704 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL);
705 ASSERT3U(obsolete_sm_obj, ==, 0);
706 }
707 for (unsigned c = 0; c < vd->vdev_children; c++) {
708 refcount += get_obsolete_refcount(vd->vdev_child[c]);
709 }
710
711 return (refcount);
712 }
713
714 static int
715 get_prev_obsolete_spacemap_refcount(spa_t *spa)
716 {
717 uint64_t prev_obj =
718 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object;
719 if (prev_obj != 0) {
720 dmu_object_info_t doi;
721 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi));
722 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
723 return (1);
724 }
725 }
726 return (0);
727 }
728
729 static int
730 verify_spacemap_refcounts(spa_t *spa)
731 {
732 uint64_t expected_refcount = 0;
733 uint64_t actual_refcount;
734
735 (void) feature_get_refcount(spa,
736 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
737 &expected_refcount);
738 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
739 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
740 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev);
741 actual_refcount += get_prev_obsolete_spacemap_refcount(spa);
742
743 if (expected_refcount != actual_refcount) {
744 (void) printf("space map refcount mismatch: expected %lld != "
745 "actual %lld\n",
746 (longlong_t)expected_refcount,
747 (longlong_t)actual_refcount);
748 return (2);
749 }
750 return (0);
751 }
752
753 static void
754 dump_spacemap(objset_t *os, space_map_t *sm)
755 {
756 uint64_t alloc, offset, entry;
757 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
758 "INVALID", "INVALID", "INVALID", "INVALID" };
759
760 if (sm == NULL)
761 return;
762
763 (void) printf("space map object %llu:\n",
764 (longlong_t)sm->sm_phys->smp_object);
765 (void) printf(" smp_objsize = 0x%llx\n",
766 (longlong_t)sm->sm_phys->smp_objsize);
767 (void) printf(" smp_alloc = 0x%llx\n",
768 (longlong_t)sm->sm_phys->smp_alloc);
769
770 /*
771 * Print out the freelist entries in both encoded and decoded form.
772 */
773 alloc = 0;
774 for (offset = 0; offset < space_map_length(sm);
775 offset += sizeof (entry)) {
776 uint8_t mapshift = sm->sm_shift;
777
778 VERIFY0(dmu_read(os, space_map_object(sm), offset,
779 sizeof (entry), &entry, DMU_READ_PREFETCH));
780 if (SM_DEBUG_DECODE(entry)) {
781
782 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
783 (u_longlong_t)(offset / sizeof (entry)),
784 ddata[SM_DEBUG_ACTION_DECODE(entry)],
785 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
786 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
787 } else {
788 (void) printf("\t [%6llu] %c range:"
789 " %010llx-%010llx size: %06llx\n",
790 (u_longlong_t)(offset / sizeof (entry)),
791 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
792 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
793 mapshift) + sm->sm_start),
794 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
795 mapshift) + sm->sm_start +
796 (SM_RUN_DECODE(entry) << mapshift)),
797 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
798 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
799 alloc += SM_RUN_DECODE(entry) << mapshift;
800 else
801 alloc -= SM_RUN_DECODE(entry) << mapshift;
802 }
803 }
804 if (alloc != space_map_allocated(sm)) {
805 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
806 "with space map summary (%llu)\n",
807 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
808 }
809 }
810
811 static void
812 dump_metaslab_stats(metaslab_t *msp)
813 {
814 char maxbuf[32];
815 range_tree_t *rt = msp->ms_tree;
816 avl_tree_t *t = &msp->ms_size_tree;
817 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
818
819 /* max sure nicenum has enough space */
820 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ);
821
822 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf));
823
824 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
825 "segments", avl_numnodes(t), "maxsize", maxbuf,
826 "freepct", free_pct);
827 (void) printf("\tIn-memory histogram:\n");
828 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
829 }
830
831 static void
832 dump_metaslab(metaslab_t *msp)
833 {
834 vdev_t *vd = msp->ms_group->mg_vd;
835 spa_t *spa = vd->vdev_spa;
836 space_map_t *sm = msp->ms_sm;
837 char freebuf[32];
838
839 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf,
840 sizeof (freebuf));
841
842 (void) printf(
843 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
844 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
845 (u_longlong_t)space_map_object(sm), freebuf);
846
847 if (dump_opt['m'] > 2 && !dump_opt['L']) {
848 mutex_enter(&msp->ms_lock);
849 metaslab_load_wait(msp);
850 if (!msp->ms_loaded) {
851 VERIFY0(metaslab_load(msp));
852 range_tree_stat_verify(msp->ms_tree);
853 }
854 dump_metaslab_stats(msp);
855 metaslab_unload(msp);
856 mutex_exit(&msp->ms_lock);
857 }
858
859 if (dump_opt['m'] > 1 && sm != NULL &&
860 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
861 /*
862 * The space map histogram represents free space in chunks
863 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
864 */
865 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
866 (u_longlong_t)msp->ms_fragmentation);
867 dump_histogram(sm->sm_phys->smp_histogram,
868 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
869 }
870
871 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
872 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
873
874 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
875 }
876 }
877
878 static void
879 print_vdev_metaslab_header(vdev_t *vd)
880 {
881 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
882 (u_longlong_t)vd->vdev_id,
883 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
884 "offset", "spacemap", "free");
885 (void) printf("\t%15s %19s %15s %10s\n",
886 "---------------", "-------------------",
887 "---------------", "-------------");
888 }
889
890 static void
891 dump_metaslab_groups(spa_t *spa)
892 {
893 vdev_t *rvd = spa->spa_root_vdev;
894 metaslab_class_t *mc = spa_normal_class(spa);
895 uint64_t fragmentation;
896
897 metaslab_class_histogram_verify(mc);
898
899 for (unsigned c = 0; c < rvd->vdev_children; c++) {
900 vdev_t *tvd = rvd->vdev_child[c];
901 metaslab_group_t *mg = tvd->vdev_mg;
902
903 if (mg->mg_class != mc)
904 continue;
905
906 metaslab_group_histogram_verify(mg);
907 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
908
909 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
910 "fragmentation",
911 (u_longlong_t)tvd->vdev_id,
912 (u_longlong_t)tvd->vdev_ms_count);
913 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
914 (void) printf("%3s\n", "-");
915 } else {
916 (void) printf("%3llu%%\n",
917 (u_longlong_t)mg->mg_fragmentation);
918 }
919 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
920 }
921
922 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
923 fragmentation = metaslab_class_fragmentation(mc);
924 if (fragmentation == ZFS_FRAG_INVALID)
925 (void) printf("\t%3s\n", "-");
926 else
927 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
928 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
929 }
930
931 static void
932 print_vdev_indirect(vdev_t *vd)
933 {
934 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
935 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
936 vdev_indirect_births_t *vib = vd->vdev_indirect_births;
937
938 if (vim == NULL) {
939 ASSERT3P(vib, ==, NULL);
940 return;
941 }
942
943 ASSERT3U(vdev_indirect_mapping_object(vim), ==,
944 vic->vic_mapping_object);
945 ASSERT3U(vdev_indirect_births_object(vib), ==,
946 vic->vic_births_object);
947
948 (void) printf("indirect births obj %llu:\n",
949 (longlong_t)vic->vic_births_object);
950 (void) printf(" vib_count = %llu\n",
951 (longlong_t)vdev_indirect_births_count(vib));
952 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) {
953 vdev_indirect_birth_entry_phys_t *cur_vibe =
954 &vib->vib_entries[i];
955 (void) printf("\toffset %llx -> txg %llu\n",
956 (longlong_t)cur_vibe->vibe_offset,
957 (longlong_t)cur_vibe->vibe_phys_birth_txg);
958 }
959 (void) printf("\n");
960
961 (void) printf("indirect mapping obj %llu:\n",
962 (longlong_t)vic->vic_mapping_object);
963 (void) printf(" vim_max_offset = 0x%llx\n",
964 (longlong_t)vdev_indirect_mapping_max_offset(vim));
965 (void) printf(" vim_bytes_mapped = 0x%llx\n",
966 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim));
967 (void) printf(" vim_count = %llu\n",
968 (longlong_t)vdev_indirect_mapping_num_entries(vim));
969
970 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3)
971 return;
972
973 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim);
974
975 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
976 vdev_indirect_mapping_entry_phys_t *vimep =
977 &vim->vim_entries[i];
978 (void) printf("\t<%llx:%llx:%llx> -> "
979 "<%llx:%llx:%llx> (%x obsolete)\n",
980 (longlong_t)vd->vdev_id,
981 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
982 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
983 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst),
984 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst),
985 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
986 counts[i]);
987 }
988 (void) printf("\n");
989
990 uint64_t obsolete_sm_object = vdev_obsolete_sm_object(vd);
991 if (obsolete_sm_object != 0) {
992 objset_t *mos = vd->vdev_spa->spa_meta_objset;
993 (void) printf("obsolete space map object %llu:\n",
994 (u_longlong_t)obsolete_sm_object);
995 ASSERT(vd->vdev_obsolete_sm != NULL);
996 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==,
997 obsolete_sm_object);
998 dump_spacemap(mos, vd->vdev_obsolete_sm);
999 (void) printf("\n");
1000 }
1001 }
1002
1003 static void
1004 dump_metaslabs(spa_t *spa)
1005 {
1006 vdev_t *vd, *rvd = spa->spa_root_vdev;
1007 uint64_t m, c = 0, children = rvd->vdev_children;
1008
1009 (void) printf("\nMetaslabs:\n");
1010
1011 if (!dump_opt['d'] && zopt_objects > 0) {
1012 c = zopt_object[0];
1013
1014 if (c >= children)
1015 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
1016
1017 if (zopt_objects > 1) {
1018 vd = rvd->vdev_child[c];
1019 print_vdev_metaslab_header(vd);
1020
1021 for (m = 1; m < zopt_objects; m++) {
1022 if (zopt_object[m] < vd->vdev_ms_count)
1023 dump_metaslab(
1024 vd->vdev_ms[zopt_object[m]]);
1025 else
1026 (void) fprintf(stderr, "bad metaslab "
1027 "number %llu\n",
1028 (u_longlong_t)zopt_object[m]);
1029 }
1030 (void) printf("\n");
1031 return;
1032 }
1033 children = c + 1;
1034 }
1035 for (; c < children; c++) {
1036 vd = rvd->vdev_child[c];
1037 print_vdev_metaslab_header(vd);
1038
1039 print_vdev_indirect(vd);
1040
1041 for (m = 0; m < vd->vdev_ms_count; m++)
1042 dump_metaslab(vd->vdev_ms[m]);
1043 (void) printf("\n");
1044 }
1045 }
1046
1047 static void
1048 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
1049 {
1050 const ddt_phys_t *ddp = dde->dde_phys;
1051 const ddt_key_t *ddk = &dde->dde_key;
1052 const char *types[4] = { "ditto", "single", "double", "triple" };
1053 char blkbuf[BP_SPRINTF_LEN];
1054 blkptr_t blk;
1055
1056 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
1057 if (ddp->ddp_phys_birth == 0)
1058 continue;
1059 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
1060 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
1061 (void) printf("index %llx refcnt %llu %s %s\n",
1062 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
1063 types[p], blkbuf);
1064 }
1065 }
1066
1067 static void
1068 dump_dedup_ratio(const ddt_stat_t *dds)
1069 {
1070 double rL, rP, rD, D, dedup, compress, copies;
1071
1072 if (dds->dds_blocks == 0)
1073 return;
1074
1075 rL = (double)dds->dds_ref_lsize;
1076 rP = (double)dds->dds_ref_psize;
1077 rD = (double)dds->dds_ref_dsize;
1078 D = (double)dds->dds_dsize;
1079
1080 dedup = rD / D;
1081 compress = rL / rP;
1082 copies = rD / rP;
1083
1084 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
1085 "dedup * compress / copies = %.2f\n\n",
1086 dedup, compress, copies, dedup * compress / copies);
1087 }
1088
1089 static void
1090 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
1091 {
1092 char name[DDT_NAMELEN];
1093 ddt_entry_t dde;
1094 uint64_t walk = 0;
1095 dmu_object_info_t doi;
1096 uint64_t count, dspace, mspace;
1097 int error;
1098
1099 error = ddt_object_info(ddt, type, class, &doi);
1100
1101 if (error == ENOENT)
1102 return;
1103 ASSERT(error == 0);
1104
1105 if ((count = ddt_object_count(ddt, type, class)) == 0)
1106 return;
1107
1108 dspace = doi.doi_physical_blocks_512 << 9;
1109 mspace = doi.doi_fill_count * doi.doi_data_block_size;
1110
1111 ddt_object_name(ddt, type, class, name);
1112
1113 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
1114 name,
1115 (u_longlong_t)count,
1116 (u_longlong_t)(dspace / count),
1117 (u_longlong_t)(mspace / count));
1118
1119 if (dump_opt['D'] < 3)
1120 return;
1121
1122 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
1123
1124 if (dump_opt['D'] < 4)
1125 return;
1126
1127 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
1128 return;
1129
1130 (void) printf("%s contents:\n\n", name);
1131
1132 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
1133 dump_dde(ddt, &dde, walk);
1134
1135 ASSERT(error == ENOENT);
1136
1137 (void) printf("\n");
1138 }
1139
1140 static void
1141 dump_all_ddts(spa_t *spa)
1142 {
1143 ddt_histogram_t ddh_total;
1144 ddt_stat_t dds_total;
1145
1146 bzero(&ddh_total, sizeof (ddh_total));
1147 bzero(&dds_total, sizeof (dds_total));
1148
1149 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1150 ddt_t *ddt = spa->spa_ddt[c];
1151 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1152 for (enum ddt_class class = 0; class < DDT_CLASSES;
1153 class++) {
1154 dump_ddt(ddt, type, class);
1155 }
1156 }
1157 }
1158
1159 ddt_get_dedup_stats(spa, &dds_total);
1160
1161 if (dds_total.dds_blocks == 0) {
1162 (void) printf("All DDTs are empty\n");
1163 return;
1164 }
1165
1166 (void) printf("\n");
1167
1168 if (dump_opt['D'] > 1) {
1169 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1170 ddt_get_dedup_histogram(spa, &ddh_total);
1171 zpool_dump_ddt(&dds_total, &ddh_total);
1172 }
1173
1174 dump_dedup_ratio(&dds_total);
1175 }
1176
1177 static void
1178 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1179 {
1180 char *prefix = arg;
1181
1182 (void) printf("%s [%llu,%llu) length %llu\n",
1183 prefix,
1184 (u_longlong_t)start,
1185 (u_longlong_t)(start + size),
1186 (u_longlong_t)(size));
1187 }
1188
1189 static void
1190 dump_dtl(vdev_t *vd, int indent)
1191 {
1192 spa_t *spa = vd->vdev_spa;
1193 boolean_t required;
1194 const char *name[DTL_TYPES] = { "missing", "partial", "scrub",
1195 "outage" };
1196 char prefix[256];
1197
1198 spa_vdev_state_enter(spa, SCL_NONE);
1199 required = vdev_dtl_required(vd);
1200 (void) spa_vdev_state_exit(spa, NULL, 0);
1201
1202 if (indent == 0)
1203 (void) printf("\nDirty time logs:\n\n");
1204
1205 (void) printf("\t%*s%s [%s]\n", indent, "",
1206 vd->vdev_path ? vd->vdev_path :
1207 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1208 required ? "DTL-required" : "DTL-expendable");
1209
1210 for (int t = 0; t < DTL_TYPES; t++) {
1211 range_tree_t *rt = vd->vdev_dtl[t];
1212 if (range_tree_space(rt) == 0)
1213 continue;
1214 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1215 indent + 2, "", name[t]);
1216 range_tree_walk(rt, dump_dtl_seg, prefix);
1217 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1218 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1219 }
1220
1221 for (unsigned c = 0; c < vd->vdev_children; c++)
1222 dump_dtl(vd->vdev_child[c], indent + 4);
1223 }
1224
1225 static void
1226 dump_history(spa_t *spa)
1227 {
1228 nvlist_t **events = NULL;
1229 uint64_t resid, len, off = 0;
1230 uint_t num = 0;
1231 int error;
1232 time_t tsec;
1233 struct tm t;
1234 char tbuf[30];
1235 char internalstr[MAXPATHLEN];
1236
1237 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
1238 do {
1239 len = SPA_MAXBLOCKSIZE;
1240
1241 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1242 (void) fprintf(stderr, "Unable to read history: "
1243 "error %d\n", error);
1244 umem_free(buf, SPA_MAXBLOCKSIZE);
1245 return;
1246 }
1247
1248 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1249 break;
1250
1251 off -= resid;
1252 } while (len != 0);
1253 umem_free(buf, SPA_MAXBLOCKSIZE);
1254
1255 (void) printf("\nHistory:\n");
1256 for (unsigned i = 0; i < num; i++) {
1257 uint64_t time, txg, ievent;
1258 char *cmd, *intstr;
1259 boolean_t printed = B_FALSE;
1260
1261 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1262 &time) != 0)
1263 goto next;
1264 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1265 &cmd) != 0) {
1266 if (nvlist_lookup_uint64(events[i],
1267 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1268 goto next;
1269 verify(nvlist_lookup_uint64(events[i],
1270 ZPOOL_HIST_TXG, &txg) == 0);
1271 verify(nvlist_lookup_string(events[i],
1272 ZPOOL_HIST_INT_STR, &intstr) == 0);
1273 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1274 goto next;
1275
1276 (void) snprintf(internalstr,
1277 sizeof (internalstr),
1278 "[internal %s txg:%ju] %s",
1279 zfs_history_event_names[ievent], (uintmax_t)txg,
1280 intstr);
1281 cmd = internalstr;
1282 }
1283 tsec = time;
1284 (void) localtime_r(&tsec, &t);
1285 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1286 (void) printf("%s %s\n", tbuf, cmd);
1287 printed = B_TRUE;
1288
1289 next:
1290 if (dump_opt['h'] > 1) {
1291 if (!printed)
1292 (void) printf("unrecognized record:\n");
1293 dump_nvlist(events[i], 2);
1294 }
1295 }
1296 }
1297
1298 /*ARGSUSED*/
1299 static void
1300 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1301 {
1302 }
1303
1304 static uint64_t
1305 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1306 const zbookmark_phys_t *zb)
1307 {
1308 if (dnp == NULL) {
1309 ASSERT(zb->zb_level < 0);
1310 if (zb->zb_object == 0)
1311 return (zb->zb_blkid);
1312 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1313 }
1314
1315 ASSERT(zb->zb_level >= 0);
1316
1317 return ((zb->zb_blkid <<
1318 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1319 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1320 }
1321
1322 static void
1323 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1324 {
1325 const dva_t *dva = bp->blk_dva;
1326 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1327
1328 if (dump_opt['b'] >= 6) {
1329 snprintf_blkptr(blkbuf, buflen, bp);
1330 return;
1331 }
1332
1333 if (BP_IS_EMBEDDED(bp)) {
1334 (void) sprintf(blkbuf,
1335 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1336 (int)BPE_GET_ETYPE(bp),
1337 (u_longlong_t)BPE_GET_LSIZE(bp),
1338 (u_longlong_t)BPE_GET_PSIZE(bp),
1339 (u_longlong_t)bp->blk_birth);
1340 return;
1341 }
1342
1343 blkbuf[0] = '\0';
1344 for (int i = 0; i < ndvas; i++)
1345 (void) snprintf(blkbuf + strlen(blkbuf),
1346 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1347 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1348 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1349 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1350
1351 if (BP_IS_HOLE(bp)) {
1352 (void) snprintf(blkbuf + strlen(blkbuf),
1353 buflen - strlen(blkbuf),
1354 "%llxL B=%llu",
1355 (u_longlong_t)BP_GET_LSIZE(bp),
1356 (u_longlong_t)bp->blk_birth);
1357 } else {
1358 (void) snprintf(blkbuf + strlen(blkbuf),
1359 buflen - strlen(blkbuf),
1360 "%llxL/%llxP F=%llu B=%llu/%llu",
1361 (u_longlong_t)BP_GET_LSIZE(bp),
1362 (u_longlong_t)BP_GET_PSIZE(bp),
1363 (u_longlong_t)BP_GET_FILL(bp),
1364 (u_longlong_t)bp->blk_birth,
1365 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1366 }
1367 }
1368
1369 static void
1370 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1371 const dnode_phys_t *dnp)
1372 {
1373 char blkbuf[BP_SPRINTF_LEN];
1374 int l;
1375
1376 if (!BP_IS_EMBEDDED(bp)) {
1377 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1378 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1379 }
1380
1381 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1382
1383 ASSERT(zb->zb_level >= 0);
1384
1385 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1386 if (l == zb->zb_level) {
1387 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1388 } else {
1389 (void) printf(" ");
1390 }
1391 }
1392
1393 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1394 (void) printf("%s\n", blkbuf);
1395 }
1396
1397 static int
1398 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1399 blkptr_t *bp, const zbookmark_phys_t *zb)
1400 {
1401 int err = 0;
1402
1403 if (bp->blk_birth == 0)
1404 return (0);
1405
1406 print_indirect(bp, zb, dnp);
1407
1408 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1409 arc_flags_t flags = ARC_FLAG_WAIT;
1410 int i;
1411 blkptr_t *cbp;
1412 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1413 arc_buf_t *buf;
1414 uint64_t fill = 0;
1415
1416 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1417 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1418 if (err)
1419 return (err);
1420 ASSERT(buf->b_data);
1421
1422 /* recursively visit blocks below this */
1423 cbp = buf->b_data;
1424 for (i = 0; i < epb; i++, cbp++) {
1425 zbookmark_phys_t czb;
1426
1427 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1428 zb->zb_level - 1,
1429 zb->zb_blkid * epb + i);
1430 err = visit_indirect(spa, dnp, cbp, &czb);
1431 if (err)
1432 break;
1433 fill += BP_GET_FILL(cbp);
1434 }
1435 if (!err)
1436 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1437 arc_buf_destroy(buf, &buf);
1438 }
1439
1440 return (err);
1441 }
1442
1443 /*ARGSUSED*/
1444 static void
1445 dump_indirect(dnode_t *dn)
1446 {
1447 dnode_phys_t *dnp = dn->dn_phys;
1448 int j;
1449 zbookmark_phys_t czb;
1450
1451 (void) printf("Indirect blocks:\n");
1452
1453 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1454 dn->dn_object, dnp->dn_nlevels - 1, 0);
1455 for (j = 0; j < dnp->dn_nblkptr; j++) {
1456 czb.zb_blkid = j;
1457 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1458 &dnp->dn_blkptr[j], &czb);
1459 }
1460
1461 (void) printf("\n");
1462 }
1463
1464 /*ARGSUSED*/
1465 static void
1466 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1467 {
1468 dsl_dir_phys_t *dd = data;
1469 time_t crtime;
1470 char nice[32];
1471
1472 /* make sure nicenum has enough space */
1473 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ);
1474
1475 if (dd == NULL)
1476 return;
1477
1478 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1479
1480 crtime = dd->dd_creation_time;
1481 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1482 (void) printf("\t\thead_dataset_obj = %llu\n",
1483 (u_longlong_t)dd->dd_head_dataset_obj);
1484 (void) printf("\t\tparent_dir_obj = %llu\n",
1485 (u_longlong_t)dd->dd_parent_obj);
1486 (void) printf("\t\torigin_obj = %llu\n",
1487 (u_longlong_t)dd->dd_origin_obj);
1488 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1489 (u_longlong_t)dd->dd_child_dir_zapobj);
1490 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice));
1491 (void) printf("\t\tused_bytes = %s\n", nice);
1492 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice));
1493 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1494 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice));
1495 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1496 zdb_nicenum(dd->dd_quota, nice, sizeof (nice));
1497 (void) printf("\t\tquota = %s\n", nice);
1498 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice));
1499 (void) printf("\t\treserved = %s\n", nice);
1500 (void) printf("\t\tprops_zapobj = %llu\n",
1501 (u_longlong_t)dd->dd_props_zapobj);
1502 (void) printf("\t\tdeleg_zapobj = %llu\n",
1503 (u_longlong_t)dd->dd_deleg_zapobj);
1504 (void) printf("\t\tflags = %llx\n",
1505 (u_longlong_t)dd->dd_flags);
1506
1507 #define DO(which) \
1508 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \
1509 sizeof (nice)); \
1510 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1511 DO(HEAD);
1512 DO(SNAP);
1513 DO(CHILD);
1514 DO(CHILD_RSRV);
1515 DO(REFRSRV);
1516 #undef DO
1517 }
1518
1519 /*ARGSUSED*/
1520 static void
1521 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1522 {
1523 dsl_dataset_phys_t *ds = data;
1524 time_t crtime;
1525 char used[32], compressed[32], uncompressed[32], unique[32];
1526 char blkbuf[BP_SPRINTF_LEN];
1527
1528 /* make sure nicenum has enough space */
1529 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ);
1530 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ);
1531 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ);
1532 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ);
1533
1534 if (ds == NULL)
1535 return;
1536
1537 ASSERT(size == sizeof (*ds));
1538 crtime = ds->ds_creation_time;
1539 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used));
1540 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed));
1541 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed,
1542 sizeof (uncompressed));
1543 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique));
1544 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1545
1546 (void) printf("\t\tdir_obj = %llu\n",
1547 (u_longlong_t)ds->ds_dir_obj);
1548 (void) printf("\t\tprev_snap_obj = %llu\n",
1549 (u_longlong_t)ds->ds_prev_snap_obj);
1550 (void) printf("\t\tprev_snap_txg = %llu\n",
1551 (u_longlong_t)ds->ds_prev_snap_txg);
1552 (void) printf("\t\tnext_snap_obj = %llu\n",
1553 (u_longlong_t)ds->ds_next_snap_obj);
1554 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1555 (u_longlong_t)ds->ds_snapnames_zapobj);
1556 (void) printf("\t\tnum_children = %llu\n",
1557 (u_longlong_t)ds->ds_num_children);
1558 (void) printf("\t\tuserrefs_obj = %llu\n",
1559 (u_longlong_t)ds->ds_userrefs_obj);
1560 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1561 (void) printf("\t\tcreation_txg = %llu\n",
1562 (u_longlong_t)ds->ds_creation_txg);
1563 (void) printf("\t\tdeadlist_obj = %llu\n",
1564 (u_longlong_t)ds->ds_deadlist_obj);
1565 (void) printf("\t\tused_bytes = %s\n", used);
1566 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1567 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1568 (void) printf("\t\tunique = %s\n", unique);
1569 (void) printf("\t\tfsid_guid = %llu\n",
1570 (u_longlong_t)ds->ds_fsid_guid);
1571 (void) printf("\t\tguid = %llu\n",
1572 (u_longlong_t)ds->ds_guid);
1573 (void) printf("\t\tflags = %llx\n",
1574 (u_longlong_t)ds->ds_flags);
1575 (void) printf("\t\tnext_clones_obj = %llu\n",
1576 (u_longlong_t)ds->ds_next_clones_obj);
1577 (void) printf("\t\tprops_obj = %llu\n",
1578 (u_longlong_t)ds->ds_props_obj);
1579 (void) printf("\t\tbp = %s\n", blkbuf);
1580 }
1581
1582 /* ARGSUSED */
1583 static int
1584 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1585 {
1586 char blkbuf[BP_SPRINTF_LEN];
1587
1588 if (bp->blk_birth != 0) {
1589 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1590 (void) printf("\t%s\n", blkbuf);
1591 }
1592 return (0);
1593 }
1594
1595 static void
1596 dump_bptree(objset_t *os, uint64_t obj, const char *name)
1597 {
1598 char bytes[32];
1599 bptree_phys_t *bt;
1600 dmu_buf_t *db;
1601
1602 /* make sure nicenum has enough space */
1603 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1604
1605 if (dump_opt['d'] < 3)
1606 return;
1607
1608 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1609 bt = db->db_data;
1610 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes));
1611 (void) printf("\n %s: %llu datasets, %s\n",
1612 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1613 dmu_buf_rele(db, FTAG);
1614
1615 if (dump_opt['d'] < 5)
1616 return;
1617
1618 (void) printf("\n");
1619
1620 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1621 }
1622
1623 /* ARGSUSED */
1624 static int
1625 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1626 {
1627 char blkbuf[BP_SPRINTF_LEN];
1628
1629 ASSERT(bp->blk_birth != 0);
1630 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1631 (void) printf("\t%s\n", blkbuf);
1632 return (0);
1633 }
1634
1635 static void
1636 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent)
1637 {
1638 char bytes[32];
1639 char comp[32];
1640 char uncomp[32];
1641
1642 /* make sure nicenum has enough space */
1643 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1644 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1645 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1646
1647 if (dump_opt['d'] < 3)
1648 return;
1649
1650 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes));
1651 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1652 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp));
1653 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp));
1654 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1655 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1656 indent * 8, name,
1657 (u_longlong_t)bpo->bpo_object,
1658 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1659 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1660 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1661 bytes, comp, uncomp);
1662
1663 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1664 uint64_t subobj;
1665 bpobj_t subbpo;
1666 int error;
1667 VERIFY0(dmu_read(bpo->bpo_os,
1668 bpo->bpo_phys->bpo_subobjs,
1669 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1670 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1671 if (error != 0) {
1672 (void) printf("ERROR %u while trying to open "
1673 "subobj id %llu\n",
1674 error, (u_longlong_t)subobj);
1675 continue;
1676 }
1677 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1678 bpobj_close(&subbpo);
1679 }
1680 } else {
1681 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1682 indent * 8, name,
1683 (u_longlong_t)bpo->bpo_object,
1684 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1685 bytes);
1686 }
1687
1688 if (dump_opt['d'] < 5)
1689 return;
1690
1691
1692 if (indent == 0) {
1693 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1694 (void) printf("\n");
1695 }
1696 }
1697
1698 static void
1699 dump_deadlist(dsl_deadlist_t *dl)
1700 {
1701 dsl_deadlist_entry_t *dle;
1702 uint64_t unused;
1703 char bytes[32];
1704 char comp[32];
1705 char uncomp[32];
1706
1707 /* make sure nicenum has enough space */
1708 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1709 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1710 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1711
1712 if (dump_opt['d'] < 3)
1713 return;
1714
1715 if (dl->dl_oldfmt) {
1716 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1717 return;
1718 }
1719
1720 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes));
1721 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp));
1722 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp));
1723 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1724 bytes, comp, uncomp);
1725
1726 if (dump_opt['d'] < 4)
1727 return;
1728
1729 (void) printf("\n");
1730
1731 /* force the tree to be loaded */
1732 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1733
1734 for (dle = avl_first(&dl->dl_tree); dle;
1735 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1736 if (dump_opt['d'] >= 5) {
1737 char buf[128];
1738 (void) snprintf(buf, sizeof (buf),
1739 "mintxg %llu -> obj %llu",
1740 (longlong_t)dle->dle_mintxg,
1741 (longlong_t)dle->dle_bpobj.bpo_object);
1742
1743 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1744 } else {
1745 (void) printf("mintxg %llu -> obj %llu\n",
1746 (longlong_t)dle->dle_mintxg,
1747 (longlong_t)dle->dle_bpobj.bpo_object);
1748
1749 }
1750 }
1751 }
1752
1753 static avl_tree_t idx_tree;
1754 static avl_tree_t domain_tree;
1755 static boolean_t fuid_table_loaded;
1756 static objset_t *sa_os = NULL;
1757 static sa_attr_type_t *sa_attr_table = NULL;
1758
1759 static int
1760 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1761 {
1762 int err;
1763 uint64_t sa_attrs = 0;
1764 uint64_t version = 0;
1765
1766 VERIFY3P(sa_os, ==, NULL);
1767 err = dmu_objset_own(path, type, B_TRUE, tag, osp);
1768 if (err != 0) {
1769 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1770 strerror(err));
1771 return (err);
1772 }
1773
1774 if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
1775 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1776 8, 1, &version);
1777 if (version >= ZPL_VERSION_SA) {
1778 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1779 8, 1, &sa_attrs);
1780 }
1781 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1782 &sa_attr_table);
1783 if (err != 0) {
1784 (void) fprintf(stderr, "sa_setup failed: %s\n",
1785 strerror(err));
1786 dmu_objset_disown(*osp, tag);
1787 *osp = NULL;
1788 }
1789 }
1790 sa_os = *osp;
1791
1792 return (0);
1793 }
1794
1795 static void
1796 close_objset(objset_t *os, void *tag)
1797 {
1798 VERIFY3P(os, ==, sa_os);
1799 if (os->os_sa != NULL)
1800 sa_tear_down(os);
1801 dmu_objset_disown(os, tag);
1802 sa_attr_table = NULL;
1803 sa_os = NULL;
1804 }
1805
1806 static void
1807 fuid_table_destroy()
1808 {
1809 if (fuid_table_loaded) {
1810 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1811 fuid_table_loaded = B_FALSE;
1812 }
1813 }
1814
1815 /*
1816 * print uid or gid information.
1817 * For normal POSIX id just the id is printed in decimal format.
1818 * For CIFS files with FUID the fuid is printed in hex followed by
1819 * the domain-rid string.
1820 */
1821 static void
1822 print_idstr(uint64_t id, const char *id_type)
1823 {
1824 if (FUID_INDEX(id)) {
1825 char *domain;
1826
1827 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1828 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1829 (u_longlong_t)id, domain, (int)FUID_RID(id));
1830 } else {
1831 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1832 }
1833
1834 }
1835
1836 static void
1837 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1838 {
1839 uint32_t uid_idx, gid_idx;
1840
1841 uid_idx = FUID_INDEX(uid);
1842 gid_idx = FUID_INDEX(gid);
1843
1844 /* Load domain table, if not already loaded */
1845 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1846 uint64_t fuid_obj;
1847
1848 /* first find the fuid object. It lives in the master node */
1849 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1850 8, 1, &fuid_obj) == 0);
1851 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1852 (void) zfs_fuid_table_load(os, fuid_obj,
1853 &idx_tree, &domain_tree);
1854 fuid_table_loaded = B_TRUE;
1855 }
1856
1857 print_idstr(uid, "uid");
1858 print_idstr(gid, "gid");
1859 }
1860
1861 /*ARGSUSED*/
1862 static void
1863 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1864 {
1865 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1866 sa_handle_t *hdl;
1867 uint64_t xattr, rdev, gen;
1868 uint64_t uid, gid, mode, fsize, parent, links;
1869 uint64_t pflags;
1870 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1871 time_t z_crtime, z_atime, z_mtime, z_ctime;
1872 sa_bulk_attr_t bulk[12];
1873 int idx = 0;
1874 int error;
1875
1876 VERIFY3P(os, ==, sa_os);
1877 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1878 (void) printf("Failed to get handle for SA znode\n");
1879 return;
1880 }
1881
1882 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1883 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1884 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1885 &links, 8);
1886 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1887 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1888 &mode, 8);
1889 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1890 NULL, &parent, 8);
1891 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1892 &fsize, 8);
1893 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1894 acctm, 16);
1895 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1896 modtm, 16);
1897 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1898 crtm, 16);
1899 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1900 chgtm, 16);
1901 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1902 &pflags, 8);
1903
1904 if (sa_bulk_lookup(hdl, bulk, idx)) {
1905 (void) sa_handle_destroy(hdl);
1906 return;
1907 }
1908
1909 z_crtime = (time_t)crtm[0];
1910 z_atime = (time_t)acctm[0];
1911 z_mtime = (time_t)modtm[0];
1912 z_ctime = (time_t)chgtm[0];
1913
1914 if (dump_opt['d'] > 4) {
1915 error = zfs_obj_to_path(os, object, path, sizeof (path));
1916 if (error != 0) {
1917 (void) snprintf(path, sizeof (path),
1918 "\?\?\?<object#%llu>", (u_longlong_t)object);
1919 }
1920 (void) printf("\tpath %s\n", path);
1921 }
1922 dump_uidgid(os, uid, gid);
1923 (void) printf("\tatime %s", ctime(&z_atime));
1924 (void) printf("\tmtime %s", ctime(&z_mtime));
1925 (void) printf("\tctime %s", ctime(&z_ctime));
1926 (void) printf("\tcrtime %s", ctime(&z_crtime));
1927 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1928 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1929 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1930 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1931 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1932 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1933 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1934 sizeof (uint64_t)) == 0)
1935 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1936 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1937 sizeof (uint64_t)) == 0)
1938 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1939 sa_handle_destroy(hdl);
1940 }
1941
1942 /*ARGSUSED*/
1943 static void
1944 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1945 {
1946 }
1947
1948 /*ARGSUSED*/
1949 static void
1950 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1951 {
1952 }
1953
1954 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1955 dump_none, /* unallocated */
1956 dump_zap, /* object directory */
1957 dump_uint64, /* object array */
1958 dump_none, /* packed nvlist */
1959 dump_packed_nvlist, /* packed nvlist size */
1960 dump_none, /* bpobj */
1961 dump_bpobj, /* bpobj header */
1962 dump_none, /* SPA space map header */
1963 dump_none, /* SPA space map */
1964 dump_none, /* ZIL intent log */
1965 dump_dnode, /* DMU dnode */
1966 dump_dmu_objset, /* DMU objset */
1967 dump_dsl_dir, /* DSL directory */
1968 dump_zap, /* DSL directory child map */
1969 dump_zap, /* DSL dataset snap map */
1970 dump_zap, /* DSL props */
1971 dump_dsl_dataset, /* DSL dataset */
1972 dump_znode, /* ZFS znode */
1973 dump_acl, /* ZFS V0 ACL */
1974 dump_uint8, /* ZFS plain file */
1975 dump_zpldir, /* ZFS directory */
1976 dump_zap, /* ZFS master node */
1977 dump_zap, /* ZFS delete queue */
1978 dump_uint8, /* zvol object */
1979 dump_zap, /* zvol prop */
1980 dump_uint8, /* other uint8[] */
1981 dump_uint64, /* other uint64[] */
1982 dump_zap, /* other ZAP */
1983 dump_zap, /* persistent error log */
1984 dump_uint8, /* SPA history */
1985 dump_history_offsets, /* SPA history offsets */
1986 dump_zap, /* Pool properties */
1987 dump_zap, /* DSL permissions */
1988 dump_acl, /* ZFS ACL */
1989 dump_uint8, /* ZFS SYSACL */
1990 dump_none, /* FUID nvlist */
1991 dump_packed_nvlist, /* FUID nvlist size */
1992 dump_zap, /* DSL dataset next clones */
1993 dump_zap, /* DSL scrub queue */
1994 dump_zap, /* ZFS user/group used */
1995 dump_zap, /* ZFS user/group quota */
1996 dump_zap, /* snapshot refcount tags */
1997 dump_ddt_zap, /* DDT ZAP object */
1998 dump_zap, /* DDT statistics */
1999 dump_znode, /* SA object */
2000 dump_zap, /* SA Master Node */
2001 dump_sa_attrs, /* SA attribute registration */
2002 dump_sa_layouts, /* SA attribute layouts */
2003 dump_zap, /* DSL scrub translations */
2004 dump_none, /* fake dedup BP */
2005 dump_zap, /* deadlist */
2006 dump_none, /* deadlist hdr */
2007 dump_zap, /* dsl clones */
2008 dump_bpobj_subobjs, /* bpobj subobjs */
2009 dump_unknown, /* Unknown type, must be last */
2010 };
2011
2012 static void
2013 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
2014 {
2015 dmu_buf_t *db = NULL;
2016 dmu_object_info_t doi;
2017 dnode_t *dn;
2018 void *bonus = NULL;
2019 size_t bsize = 0;
2020 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
2021 char bonus_size[32];
2022 char aux[50];
2023 int error;
2024
2025 /* make sure nicenum has enough space */
2026 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ);
2027 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ);
2028 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
2029 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
2030 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
2031
2032 if (*print_header) {
2033 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
2034 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
2035 "%full", "type");
2036 *print_header = 0;
2037 }
2038
2039 if (object == 0) {
2040 dn = DMU_META_DNODE(os);
2041 } else {
2042 error = dmu_bonus_hold(os, object, FTAG, &db);
2043 if (error)
2044 fatal("dmu_bonus_hold(%llu) failed, errno %u",
2045 object, error);
2046 bonus = db->db_data;
2047 bsize = db->db_size;
2048 dn = DB_DNODE((dmu_buf_impl_t *)db);
2049 }
2050 dmu_object_info_from_dnode(dn, &doi);
2051
2052 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
2053 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
2054 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
2055 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
2056 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
2057 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
2058 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
2059 doi.doi_max_offset);
2060
2061 aux[0] = '\0';
2062
2063 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
2064 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
2065 ZDB_CHECKSUM_NAME(doi.doi_checksum));
2066 }
2067
2068 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
2069 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
2070 ZDB_COMPRESS_NAME(doi.doi_compress));
2071 }
2072
2073 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
2074 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
2075 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
2076
2077 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
2078 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
2079 "", "", "", "", "", bonus_size, "bonus",
2080 ZDB_OT_NAME(doi.doi_bonus_type));
2081 }
2082
2083 if (verbosity >= 4) {
2084 (void) printf("\tdnode flags: %s%s%s\n",
2085 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
2086 "USED_BYTES " : "",
2087 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
2088 "USERUSED_ACCOUNTED " : "",
2089 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
2090 "SPILL_BLKPTR" : "");
2091 (void) printf("\tdnode maxblkid: %llu\n",
2092 (longlong_t)dn->dn_phys->dn_maxblkid);
2093
2094 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
2095 bonus, bsize);
2096 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
2097 *print_header = 1;
2098 }
2099
2100 if (verbosity >= 5)
2101 dump_indirect(dn);
2102
2103 if (verbosity >= 5) {
2104 /*
2105 * Report the list of segments that comprise the object.
2106 */
2107 uint64_t start = 0;
2108 uint64_t end;
2109 uint64_t blkfill = 1;
2110 int minlvl = 1;
2111
2112 if (dn->dn_type == DMU_OT_DNODE) {
2113 minlvl = 0;
2114 blkfill = DNODES_PER_BLOCK;
2115 }
2116
2117 for (;;) {
2118 char segsize[32];
2119 /* make sure nicenum has enough space */
2120 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ);
2121 error = dnode_next_offset(dn,
2122 0, &start, minlvl, blkfill, 0);
2123 if (error)
2124 break;
2125 end = start;
2126 error = dnode_next_offset(dn,
2127 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
2128 zdb_nicenum(end - start, segsize, sizeof (segsize));
2129 (void) printf("\t\tsegment [%016llx, %016llx)"
2130 " size %5s\n", (u_longlong_t)start,
2131 (u_longlong_t)end, segsize);
2132 if (error)
2133 break;
2134 start = end;
2135 }
2136 }
2137
2138 if (db != NULL)
2139 dmu_buf_rele(db, FTAG);
2140 }
2141
2142 static const char *objset_types[DMU_OST_NUMTYPES] = {
2143 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
2144
2145 static void
2146 dump_dir(objset_t *os)
2147 {
2148 dmu_objset_stats_t dds;
2149 uint64_t object, object_count;
2150 uint64_t refdbytes, usedobjs, scratch;
2151 char numbuf[32];
2152 char blkbuf[BP_SPRINTF_LEN + 20];
2153 char osname[ZFS_MAX_DATASET_NAME_LEN];
2154 const char *type = "UNKNOWN";
2155 int verbosity = dump_opt['d'];
2156 int print_header = 1;
2157 unsigned i;
2158 int error;
2159
2160 /* make sure nicenum has enough space */
2161 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
2162
2163 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
2164 dmu_objset_fast_stat(os, &dds);
2165 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
2166
2167 if (dds.dds_type < DMU_OST_NUMTYPES)
2168 type = objset_types[dds.dds_type];
2169
2170 if (dds.dds_type == DMU_OST_META) {
2171 dds.dds_creation_txg = TXG_INITIAL;
2172 usedobjs = BP_GET_FILL(os->os_rootbp);
2173 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
2174 dd_used_bytes;
2175 } else {
2176 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
2177 }
2178
2179 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
2180
2181 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf));
2182
2183 if (verbosity >= 4) {
2184 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
2185 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2186 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2187 } else {
2188 blkbuf[0] = '\0';
2189 }
2190
2191 dmu_objset_name(os, osname);
2192
2193 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2194 "%s, %llu objects%s\n",
2195 osname, type, (u_longlong_t)dmu_objset_id(os),
2196 (u_longlong_t)dds.dds_creation_txg,
2197 numbuf, (u_longlong_t)usedobjs, blkbuf);
2198
2199 if (zopt_objects != 0) {
2200 for (i = 0; i < zopt_objects; i++)
2201 dump_object(os, zopt_object[i], verbosity,
2202 &print_header);
2203 (void) printf("\n");
2204 return;
2205 }
2206
2207 if (dump_opt['i'] != 0 || verbosity >= 2)
2208 dump_intent_log(dmu_objset_zil(os));
2209
2210 if (dmu_objset_ds(os) != NULL) {
2211 dsl_dataset_t *ds = dmu_objset_ds(os);
2212 dump_deadlist(&ds->ds_deadlist);
2213
2214 if (dsl_dataset_remap_deadlist_exists(ds)) {
2215 (void) printf("ds_remap_deadlist:\n");
2216 dump_deadlist(&ds->ds_remap_deadlist);
2217 }
2218 }
2219
2220 if (verbosity < 2)
2221 return;
2222
2223 if (BP_IS_HOLE(os->os_rootbp))
2224 return;
2225
2226 dump_object(os, 0, verbosity, &print_header);
2227 object_count = 0;
2228 if (DMU_USERUSED_DNODE(os) != NULL &&
2229 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2230 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2231 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2232 }
2233
2234 object = 0;
2235 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2236 dump_object(os, object, verbosity, &print_header);
2237 object_count++;
2238 }
2239
2240 ASSERT3U(object_count, ==, usedobjs);
2241
2242 (void) printf("\n");
2243
2244 if (error != ESRCH) {
2245 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2246 abort();
2247 }
2248 }
2249
2250 static void
2251 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2252 {
2253 time_t timestamp = ub->ub_timestamp;
2254
2255 (void) printf("%s", header ? header : "");
2256 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2257 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2258 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2259 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2260 (void) printf("\ttimestamp = %llu UTC = %s",
2261 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2262 if (dump_opt['u'] >= 3) {
2263 char blkbuf[BP_SPRINTF_LEN];
2264 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2265 (void) printf("\trootbp = %s\n", blkbuf);
2266 }
2267 (void) printf("%s", footer ? footer : "");
2268 }
2269
2270 static void
2271 dump_config(spa_t *spa)
2272 {
2273 dmu_buf_t *db;
2274 size_t nvsize = 0;
2275 int error = 0;
2276
2277
2278 error = dmu_bonus_hold(spa->spa_meta_objset,
2279 spa->spa_config_object, FTAG, &db);
2280
2281 if (error == 0) {
2282 nvsize = *(uint64_t *)db->db_data;
2283 dmu_buf_rele(db, FTAG);
2284
2285 (void) printf("\nMOS Configuration:\n");
2286 dump_packed_nvlist(spa->spa_meta_objset,
2287 spa->spa_config_object, (void *)&nvsize, 1);
2288 } else {
2289 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2290 (u_longlong_t)spa->spa_config_object, error);
2291 }
2292 }
2293
2294 static void
2295 dump_cachefile(const char *cachefile)
2296 {
2297 int fd;
2298 struct stat64 statbuf;
2299 char *buf;
2300 nvlist_t *config;
2301
2302 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2303 (void) printf("cannot open '%s': %s\n", cachefile,
2304 strerror(errno));
2305 exit(1);
2306 }
2307
2308 if (fstat64(fd, &statbuf) != 0) {
2309 (void) printf("failed to stat '%s': %s\n", cachefile,
2310 strerror(errno));
2311 exit(1);
2312 }
2313
2314 if ((buf = malloc(statbuf.st_size)) == NULL) {
2315 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2316 (u_longlong_t)statbuf.st_size);
2317 exit(1);
2318 }
2319
2320 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2321 (void) fprintf(stderr, "failed to read %llu bytes\n",
2322 (u_longlong_t)statbuf.st_size);
2323 exit(1);
2324 }
2325
2326 (void) close(fd);
2327
2328 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2329 (void) fprintf(stderr, "failed to unpack nvlist\n");
2330 exit(1);
2331 }
2332
2333 free(buf);
2334
2335 dump_nvlist(config, 0);
2336
2337 nvlist_free(config);
2338 }
2339
2340 #define ZDB_MAX_UB_HEADER_SIZE 32
2341
2342 static void
2343 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2344 {
2345 vdev_t vd;
2346 vdev_t *vdp = &vd;
2347 char header[ZDB_MAX_UB_HEADER_SIZE];
2348
2349 vd.vdev_ashift = ashift;
2350 vdp->vdev_top = vdp;
2351
2352 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2353 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2354 uberblock_t *ub = (void *)((char *)lbl + uoff);
2355
2356 if (uberblock_verify(ub))
2357 continue;
2358 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2359 "Uberblock[%d]\n", i);
2360 dump_uberblock(ub, header, "");
2361 }
2362 }
2363
2364 static char curpath[PATH_MAX];
2365
2366 /*
2367 * Iterate through the path components, recursively passing
2368 * current one's obj and remaining path until we find the obj
2369 * for the last one.
2370 */
2371 static int
2372 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2373 {
2374 int err;
2375 int header = 1;
2376 uint64_t child_obj;
2377 char *s;
2378 dmu_buf_t *db;
2379 dmu_object_info_t doi;
2380
2381 if ((s = strchr(name, '/')) != NULL)
2382 *s = '\0';
2383 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2384
2385 (void) strlcat(curpath, name, sizeof (curpath));
2386
2387 if (err != 0) {
2388 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2389 curpath, strerror(err));
2390 return (err);
2391 }
2392
2393 child_obj = ZFS_DIRENT_OBJ(child_obj);
2394 err = sa_buf_hold(os, child_obj, FTAG, &db);
2395 if (err != 0) {
2396 (void) fprintf(stderr,
2397 "failed to get SA dbuf for obj %llu: %s\n",
2398 (u_longlong_t)child_obj, strerror(err));
2399 return (EINVAL);
2400 }
2401 dmu_object_info_from_db(db, &doi);
2402 sa_buf_rele(db, FTAG);
2403
2404 if (doi.doi_bonus_type != DMU_OT_SA &&
2405 doi.doi_bonus_type != DMU_OT_ZNODE) {
2406 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2407 doi.doi_bonus_type, (u_longlong_t)child_obj);
2408 return (EINVAL);
2409 }
2410
2411 if (dump_opt['v'] > 6) {
2412 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2413 (u_longlong_t)child_obj, curpath, doi.doi_type,
2414 doi.doi_bonus_type);
2415 }
2416
2417 (void) strlcat(curpath, "/", sizeof (curpath));
2418
2419 switch (doi.doi_type) {
2420 case DMU_OT_DIRECTORY_CONTENTS:
2421 if (s != NULL && *(s + 1) != '\0')
2422 return (dump_path_impl(os, child_obj, s + 1));
2423 /*FALLTHROUGH*/
2424 case DMU_OT_PLAIN_FILE_CONTENTS:
2425 dump_object(os, child_obj, dump_opt['v'], &header);
2426 return (0);
2427 default:
2428 (void) fprintf(stderr, "object %llu has non-file/directory "
2429 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2430 break;
2431 }
2432
2433 return (EINVAL);
2434 }
2435
2436 /*
2437 * Dump the blocks for the object specified by path inside the dataset.
2438 */
2439 static int
2440 dump_path(char *ds, char *path)
2441 {
2442 int err;
2443 objset_t *os;
2444 uint64_t root_obj;
2445
2446 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2447 if (err != 0)
2448 return (err);
2449
2450 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2451 if (err != 0) {
2452 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2453 strerror(err));
2454 dmu_objset_disown(os, FTAG);
2455 return (EINVAL);
2456 }
2457
2458 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2459
2460 err = dump_path_impl(os, root_obj, path);
2461
2462 close_objset(os, FTAG);
2463 return (err);
2464 }
2465
2466 static int
2467 dump_label(const char *dev)
2468 {
2469 int fd;
2470 vdev_label_t label;
2471 char path[MAXPATHLEN];
2472 char *buf = label.vl_vdev_phys.vp_nvlist;
2473 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2474 struct stat64 statbuf;
2475 uint64_t psize, ashift;
2476 boolean_t label_found = B_FALSE;
2477
2478 (void) strlcpy(path, dev, sizeof (path));
2479 if (dev[0] == '/') {
2480 if (strncmp(dev, ZFS_DISK_ROOTD,
2481 strlen(ZFS_DISK_ROOTD)) == 0) {
2482 (void) snprintf(path, sizeof (path), "%s%s",
2483 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD));
2484 }
2485 } else if (stat64(path, &statbuf) != 0) {
2486 char *s;
2487
2488 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD,
2489 dev);
2490 if (((s = strrchr(dev, 's')) == NULL &&
2491 (s = strchr(dev, 'p')) == NULL) ||
2492 !isdigit(*(s + 1)))
2493 (void) strlcat(path, "s0", sizeof (path));
2494 }
2495
2496 if ((fd = open64(path, O_RDONLY)) < 0) {
2497 (void) fprintf(stderr, "cannot open '%s': %s\n", path,
2498 strerror(errno));
2499 exit(1);
2500 }
2501
2502 if (fstat64(fd, &statbuf) != 0) {
2503 (void) fprintf(stderr, "failed to stat '%s': %s\n", path,
2504 strerror(errno));
2505 (void) close(fd);
2506 exit(1);
2507 }
2508
2509 if (S_ISBLK(statbuf.st_mode)) {
2510 (void) fprintf(stderr,
2511 "cannot use '%s': character device required\n", path);
2512 (void) close(fd);
2513 exit(1);
2514 }
2515
2516 psize = statbuf.st_size;
2517 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2518
2519 for (int l = 0; l < VDEV_LABELS; l++) {
2520 nvlist_t *config = NULL;
2521
2522 if (!dump_opt['q']) {
2523 (void) printf("------------------------------------\n");
2524 (void) printf("LABEL %d\n", l);
2525 (void) printf("------------------------------------\n");
2526 }
2527
2528 if (pread64(fd, &label, sizeof (label),
2529 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2530 if (!dump_opt['q'])
2531 (void) printf("failed to read label %d\n", l);
2532 continue;
2533 }
2534
2535 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2536 if (!dump_opt['q'])
2537 (void) printf("failed to unpack label %d\n", l);
2538 ashift = SPA_MINBLOCKSHIFT;
2539 } else {
2540 nvlist_t *vdev_tree = NULL;
2541
2542 if (!dump_opt['q'])
2543 dump_nvlist(config, 4);
2544 if ((nvlist_lookup_nvlist(config,
2545 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2546 (nvlist_lookup_uint64(vdev_tree,
2547 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2548 ashift = SPA_MINBLOCKSHIFT;
2549 nvlist_free(config);
2550 label_found = B_TRUE;
2551 }
2552 if (dump_opt['u'])
2553 dump_label_uberblocks(&label, ashift);
2554 }
2555
2556 (void) close(fd);
2557
2558 return (label_found ? 0 : 2);
2559 }
2560
2561 static uint64_t dataset_feature_count[SPA_FEATURES];
2562 static uint64_t remap_deadlist_count = 0;
2563
2564 /*ARGSUSED*/
2565 static int
2566 dump_one_dir(const char *dsname, void *arg)
2567 {
2568 int error;
2569 objset_t *os;
2570
2571 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
2572 if (error != 0)
2573 return (0);
2574
2575 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2576 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2577 continue;
2578 ASSERT(spa_feature_table[f].fi_flags &
2579 ZFEATURE_FLAG_PER_DATASET);
2580 dataset_feature_count[f]++;
2581 }
2582
2583 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) {
2584 remap_deadlist_count++;
2585 }
2586
2587 dump_dir(os);
2588 close_objset(os, FTAG);
2589 fuid_table_destroy();
2590 return (0);
2591 }
2592
2593 /*
2594 * Block statistics.
2595 */
2596 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2597 typedef struct zdb_blkstats {
2598 uint64_t zb_asize;
2599 uint64_t zb_lsize;
2600 uint64_t zb_psize;
2601 uint64_t zb_count;
2602 uint64_t zb_gangs;
2603 uint64_t zb_ditto_samevdev;
2604 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2605 } zdb_blkstats_t;
2606
2607 /*
2608 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2609 */
2610 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2611 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2612 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2613 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2614
2615 static const char *zdb_ot_extname[] = {
2616 "deferred free",
2617 "dedup ditto",
2618 "other",
2619 "Total",
2620 };
2621
2622 #define ZB_TOTAL DN_MAX_LEVELS
2623
2624 typedef struct zdb_cb {
2625 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2626 uint64_t zcb_removing_size;
2627 uint64_t zcb_dedup_asize;
2628 uint64_t zcb_dedup_blocks;
2629 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2630 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2631 [BPE_PAYLOAD_SIZE];
2632 uint64_t zcb_start;
2633 hrtime_t zcb_lastprint;
2634 uint64_t zcb_totalasize;
2635 uint64_t zcb_errors[256];
2636 int zcb_readfails;
2637 int zcb_haderrors;
2638 spa_t *zcb_spa;
2639 uint32_t **zcb_vd_obsolete_counts;
2640 } zdb_cb_t;
2641
2642 static void
2643 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2644 dmu_object_type_t type)
2645 {
2646 uint64_t refcnt = 0;
2647
2648 ASSERT(type < ZDB_OT_TOTAL);
2649
2650 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2651 return;
2652
2653 for (int i = 0; i < 4; i++) {
2654 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2655 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2656 int equal;
2657 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2658
2659 zb->zb_asize += BP_GET_ASIZE(bp);
2660 zb->zb_lsize += BP_GET_LSIZE(bp);
2661 zb->zb_psize += BP_GET_PSIZE(bp);
2662 zb->zb_count++;
2663
2664 /*
2665 * The histogram is only big enough to record blocks up to
2666 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2667 * "other", bucket.
2668 */
2669 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2670 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2671 zb->zb_psize_histogram[idx]++;
2672
2673 zb->zb_gangs += BP_COUNT_GANG(bp);
2674
2675 switch (BP_GET_NDVAS(bp)) {
2676 case 2:
2677 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2678 DVA_GET_VDEV(&bp->blk_dva[1]))
2679 zb->zb_ditto_samevdev++;
2680 break;
2681 case 3:
2682 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2683 DVA_GET_VDEV(&bp->blk_dva[1])) +
2684 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2685 DVA_GET_VDEV(&bp->blk_dva[2])) +
2686 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2687 DVA_GET_VDEV(&bp->blk_dva[2]));
2688 if (equal != 0)
2689 zb->zb_ditto_samevdev++;
2690 break;
2691 }
2692
2693 }
2694
2695 if (BP_IS_EMBEDDED(bp)) {
2696 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2697 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2698 [BPE_GET_PSIZE(bp)]++;
2699 return;
2700 }
2701
2702 if (dump_opt['L'])
2703 return;
2704
2705 if (BP_GET_DEDUP(bp)) {
2706 ddt_t *ddt;
2707 ddt_entry_t *dde;
2708
2709 ddt = ddt_select(zcb->zcb_spa, bp);
2710 ddt_enter(ddt);
2711 dde = ddt_lookup(ddt, bp, B_FALSE);
2712
2713 if (dde == NULL) {
2714 refcnt = 0;
2715 } else {
2716 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2717 ddt_phys_decref(ddp);
2718 refcnt = ddp->ddp_refcnt;
2719 if (ddt_phys_total_refcnt(dde) == 0)
2720 ddt_remove(ddt, dde);
2721 }
2722 ddt_exit(ddt);
2723 }
2724
2725 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2726 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2727 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2728 }
2729
2730 static void
2731 zdb_blkptr_done(zio_t *zio)
2732 {
2733 spa_t *spa = zio->io_spa;
2734 blkptr_t *bp = zio->io_bp;
2735 int ioerr = zio->io_error;
2736 zdb_cb_t *zcb = zio->io_private;
2737 zbookmark_phys_t *zb = &zio->io_bookmark;
2738
2739 abd_free(zio->io_abd);
2740
2741 mutex_enter(&spa->spa_scrub_lock);
2742 spa->spa_scrub_inflight--;
2743 cv_broadcast(&spa->spa_scrub_io_cv);
2744
2745 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2746 char blkbuf[BP_SPRINTF_LEN];
2747
2748 zcb->zcb_haderrors = 1;
2749 zcb->zcb_errors[ioerr]++;
2750
2751 if (dump_opt['b'] >= 2)
2752 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2753 else
2754 blkbuf[0] = '\0';
2755
2756 (void) printf("zdb_blkptr_cb: "
2757 "Got error %d reading "
2758 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2759 ioerr,
2760 (u_longlong_t)zb->zb_objset,
2761 (u_longlong_t)zb->zb_object,
2762 (u_longlong_t)zb->zb_level,
2763 (u_longlong_t)zb->zb_blkid,
2764 blkbuf);
2765 }
2766 mutex_exit(&spa->spa_scrub_lock);
2767 }
2768
2769 static int
2770 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2771 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2772 {
2773 zdb_cb_t *zcb = arg;
2774 dmu_object_type_t type;
2775 boolean_t is_metadata;
2776
2777 if (bp == NULL)
2778 return (0);
2779
2780 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2781 char blkbuf[BP_SPRINTF_LEN];
2782 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2783 (void) printf("objset %llu object %llu "
2784 "level %lld offset 0x%llx %s\n",
2785 (u_longlong_t)zb->zb_objset,
2786 (u_longlong_t)zb->zb_object,
2787 (longlong_t)zb->zb_level,
2788 (u_longlong_t)blkid2offset(dnp, bp, zb),
2789 blkbuf);
2790 }
2791
2792 if (BP_IS_HOLE(bp))
2793 return (0);
2794
2795 type = BP_GET_TYPE(bp);
2796
2797 zdb_count_block(zcb, zilog, bp,
2798 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2799
2800 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2801
2802 if (!BP_IS_EMBEDDED(bp) &&
2803 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2804 size_t size = BP_GET_PSIZE(bp);
2805 abd_t *abd = abd_alloc(size, B_FALSE);
2806 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2807
2808 /* If it's an intent log block, failure is expected. */
2809 if (zb->zb_level == ZB_ZIL_LEVEL)
2810 flags |= ZIO_FLAG_SPECULATIVE;
2811
2812 mutex_enter(&spa->spa_scrub_lock);
2813 while (spa->spa_scrub_inflight > max_inflight)
2814 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2815 spa->spa_scrub_inflight++;
2816 mutex_exit(&spa->spa_scrub_lock);
2817
2818 zio_nowait(zio_read(NULL, spa, bp, abd, size,
2819 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2820 }
2821
2822 zcb->zcb_readfails = 0;
2823
2824 /* only call gethrtime() every 100 blocks */
2825 static int iters;
2826 if (++iters > 100)
2827 iters = 0;
2828 else
2829 return (0);
2830
2831 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2832 uint64_t now = gethrtime();
2833 char buf[10];
2834 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2835 int kb_per_sec =
2836 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2837 int sec_remaining =
2838 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2839
2840 /* make sure nicenum has enough space */
2841 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ);
2842
2843 zfs_nicenum(bytes, buf, sizeof (buf));
2844 (void) fprintf(stderr,
2845 "\r%5s completed (%4dMB/s) "
2846 "estimated time remaining: %uhr %02umin %02usec ",
2847 buf, kb_per_sec / 1024,
2848 sec_remaining / 60 / 60,
2849 sec_remaining / 60 % 60,
2850 sec_remaining % 60);
2851
2852 zcb->zcb_lastprint = now;
2853 }
2854
2855 return (0);
2856 }
2857
2858 static void
2859 zdb_leak(void *arg, uint64_t start, uint64_t size)
2860 {
2861 vdev_t *vd = arg;
2862
2863 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2864 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2865 }
2866
2867 static metaslab_ops_t zdb_metaslab_ops = {
2868 NULL /* alloc */
2869 };
2870
2871 static void
2872 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2873 {
2874 ddt_bookmark_t ddb;
2875 ddt_entry_t dde;
2876 int error;
2877
2878 bzero(&ddb, sizeof (ddb));
2879 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2880 blkptr_t blk;
2881 ddt_phys_t *ddp = dde.dde_phys;
2882
2883 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2884 return;
2885
2886 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2887
2888 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2889 if (ddp->ddp_phys_birth == 0)
2890 continue;
2891 ddt_bp_create(ddb.ddb_checksum,
2892 &dde.dde_key, ddp, &blk);
2893 if (p == DDT_PHYS_DITTO) {
2894 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2895 } else {
2896 zcb->zcb_dedup_asize +=
2897 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2898 zcb->zcb_dedup_blocks++;
2899 }
2900 }
2901 if (!dump_opt['L']) {
2902 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2903 ddt_enter(ddt);
2904 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2905 ddt_exit(ddt);
2906 }
2907 }
2908
2909 ASSERT(error == ENOENT);
2910 }
2911
2912 /* ARGSUSED */
2913 static void
2914 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset,
2915 uint64_t size, void *arg)
2916 {
2917 /*
2918 * This callback was called through a remap from
2919 * a device being removed. Therefore, the vdev that
2920 * this callback is applied to is a concrete
2921 * vdev.
2922 */
2923 ASSERT(vdev_is_concrete(vd));
2924
2925 VERIFY0(metaslab_claim_impl(vd, offset, size,
2926 spa_first_txg(vd->vdev_spa)));
2927 }
2928
2929 static void
2930 claim_segment_cb(void *arg, uint64_t offset, uint64_t size)
2931 {
2932 vdev_t *vd = arg;
2933
2934 vdev_indirect_ops.vdev_op_remap(vd, offset, size,
2935 claim_segment_impl_cb, NULL);
2936 }
2937
2938 /*
2939 * After accounting for all allocated blocks that are directly referenced,
2940 * we might have missed a reference to a block from a partially complete
2941 * (and thus unused) indirect mapping object. We perform a secondary pass
2942 * through the metaslabs we have already mapped and claim the destination
2943 * blocks.
2944 */
2945 static void
2946 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb)
2947 {
2948 if (spa->spa_vdev_removal == NULL)
2949 return;
2950
2951 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2952
2953 spa_vdev_removal_t *svr = spa->spa_vdev_removal;
2954 vdev_t *vd = svr->svr_vdev;
2955 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
2956
2957 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) {
2958 metaslab_t *msp = vd->vdev_ms[msi];
2959
2960 if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim))
2961 break;
2962
2963 ASSERT0(range_tree_space(svr->svr_allocd_segs));
2964
2965 if (msp->ms_sm != NULL) {
2966 VERIFY0(space_map_load(msp->ms_sm,
2967 svr->svr_allocd_segs, SM_ALLOC));
2968
2969 /*
2970 * Clear everything past what has been synced,
2971 * because we have not allocated mappings for it yet.
2972 */
2973 range_tree_clear(svr->svr_allocd_segs,
2974 vdev_indirect_mapping_max_offset(vim),
2975 msp->ms_sm->sm_start + msp->ms_sm->sm_size -
2976 vdev_indirect_mapping_max_offset(vim));
2977 }
2978
2979 zcb->zcb_removing_size +=
2980 range_tree_space(svr->svr_allocd_segs);
2981 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd);
2982 }
2983
2984 spa_config_exit(spa, SCL_CONFIG, FTAG);
2985 }
2986
2987 /*
2988 * vm_idxp is an in-out parameter which (for indirect vdevs) is the
2989 * index in vim_entries that has the first entry in this metaslab. On
2990 * return, it will be set to the first entry after this metaslab.
2991 */
2992 static void
2993 zdb_leak_init_ms(metaslab_t *msp, uint64_t *vim_idxp)
2994 {
2995 metaslab_group_t *mg = msp->ms_group;
2996 vdev_t *vd = mg->mg_vd;
2997 vdev_t *rvd = vd->vdev_spa->spa_root_vdev;
2998
2999 mutex_enter(&msp->ms_lock);
3000 metaslab_unload(msp);
3001
3002 /*
3003 * We don't want to spend the CPU manipulating the size-ordered
3004 * tree, so clear the range_tree ops.
3005 */
3006 msp->ms_tree->rt_ops = NULL;
3007
3008 (void) fprintf(stderr,
3009 "\rloading vdev %llu of %llu, metaslab %llu of %llu ...",
3010 (longlong_t)vd->vdev_id,
3011 (longlong_t)rvd->vdev_children,
3012 (longlong_t)msp->ms_id,
3013 (longlong_t)vd->vdev_ms_count);
3014
3015 /*
3016 * For leak detection, we overload the metaslab ms_tree to
3017 * contain allocated segments instead of free segments. As a
3018 * result, we can't use the normal metaslab_load/unload
3019 * interfaces.
3020 */
3021 if (vd->vdev_ops == &vdev_indirect_ops) {
3022 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3023 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim);
3024 (*vim_idxp)++) {
3025 vdev_indirect_mapping_entry_phys_t *vimep =
3026 &vim->vim_entries[*vim_idxp];
3027 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
3028 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst);
3029 ASSERT3U(ent_offset, >=, msp->ms_start);
3030 if (ent_offset >= msp->ms_start + msp->ms_size)
3031 break;
3032
3033 /*
3034 * Mappings do not cross metaslab boundaries,
3035 * because we create them by walking the metaslabs.
3036 */
3037 ASSERT3U(ent_offset + ent_len, <=,
3038 msp->ms_start + msp->ms_size);
3039 range_tree_add(msp->ms_tree, ent_offset, ent_len);
3040 }
3041 } else if (msp->ms_sm != NULL) {
3042 VERIFY0(space_map_load(msp->ms_sm, msp->ms_tree, SM_ALLOC));
3043 }
3044
3045 if (!msp->ms_loaded) {
3046 msp->ms_loaded = B_TRUE;
3047 }
3048 mutex_exit(&msp->ms_lock);
3049 }
3050
3051 /* ARGSUSED */
3052 static int
3053 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
3054 {
3055 zdb_cb_t *zcb = arg;
3056 spa_t *spa = zcb->zcb_spa;
3057 vdev_t *vd;
3058 const dva_t *dva = &bp->blk_dva[0];
3059
3060 ASSERT(!dump_opt['L']);
3061 ASSERT3U(BP_GET_NDVAS(bp), ==, 1);
3062
3063 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
3064 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva));
3065 ASSERT3P(vd, !=, NULL);
3066 spa_config_exit(spa, SCL_VDEV, FTAG);
3067
3068 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0);
3069 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL);
3070
3071 vdev_indirect_mapping_increment_obsolete_count(
3072 vd->vdev_indirect_mapping,
3073 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva),
3074 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
3075
3076 return (0);
3077 }
3078
3079 static uint32_t *
3080 zdb_load_obsolete_counts(vdev_t *vd)
3081 {
3082 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3083 spa_t *spa = vd->vdev_spa;
3084 spa_condensing_indirect_phys_t *scip =
3085 &spa->spa_condensing_indirect_phys;
3086 uint32_t *counts;
3087
3088 EQUIV(vdev_obsolete_sm_object(vd) != 0, vd->vdev_obsolete_sm != NULL);
3089 counts = vdev_indirect_mapping_load_obsolete_counts(vim);
3090 if (vd->vdev_obsolete_sm != NULL) {
3091 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
3092 vd->vdev_obsolete_sm);
3093 }
3094 if (scip->scip_vdev == vd->vdev_id &&
3095 scip->scip_prev_obsolete_sm_object != 0) {
3096 space_map_t *prev_obsolete_sm = NULL;
3097 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset,
3098 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0));
3099 space_map_update(prev_obsolete_sm);
3100 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
3101 prev_obsolete_sm);
3102 space_map_close(prev_obsolete_sm);
3103 }
3104 return (counts);
3105 }
3106
3107 static void
3108 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
3109 {
3110 zcb->zcb_spa = spa;
3111
3112 if (!dump_opt['L']) {
3113 dsl_pool_t *dp = spa->spa_dsl_pool;
3114 vdev_t *rvd = spa->spa_root_vdev;
3115
3116 /*
3117 * We are going to be changing the meaning of the metaslab's
3118 * ms_tree. Ensure that the allocator doesn't try to
3119 * use the tree.
3120 */
3121 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
3122 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
3123
3124 zcb->zcb_vd_obsolete_counts =
3125 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *),
3126 UMEM_NOFAIL);
3127
3128
3129 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
3130 vdev_t *vd = rvd->vdev_child[c];
3131 uint64_t vim_idx = 0;
3132
3133 ASSERT3U(c, ==, vd->vdev_id);
3134
3135 /*
3136 * Note: we don't check for mapping leaks on
3137 * removing vdevs because their ms_tree's are
3138 * used to look for leaks in allocated space.
3139 */
3140 if (vd->vdev_ops == &vdev_indirect_ops) {
3141 zcb->zcb_vd_obsolete_counts[c] =
3142 zdb_load_obsolete_counts(vd);
3143
3144 /*
3145 * Normally, indirect vdevs don't have any
3146 * metaslabs. We want to set them up for
3147 * zio_claim().
3148 */
3149 VERIFY0(vdev_metaslab_init(vd, 0));
3150 }
3151
3152 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
3153 zdb_leak_init_ms(vd->vdev_ms[m], &vim_idx);
3154 }
3155 if (vd->vdev_ops == &vdev_indirect_ops) {
3156 ASSERT3U(vim_idx, ==,
3157 vdev_indirect_mapping_num_entries(
3158 vd->vdev_indirect_mapping));
3159 }
3160 }
3161 (void) fprintf(stderr, "\n");
3162
3163 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
3164 ASSERT(spa_feature_is_enabled(spa,
3165 SPA_FEATURE_DEVICE_REMOVAL));
3166 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj,
3167 increment_indirect_mapping_cb, zcb, NULL);
3168 }
3169 }
3170
3171 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3172
3173 zdb_ddt_leak_init(spa, zcb);
3174
3175 spa_config_exit(spa, SCL_CONFIG, FTAG);
3176 }
3177
3178 static boolean_t
3179 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb)
3180 {
3181 boolean_t leaks = B_FALSE;
3182 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3183 uint64_t total_leaked = 0;
3184
3185 ASSERT(vim != NULL);
3186
3187 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
3188 vdev_indirect_mapping_entry_phys_t *vimep =
3189 &vim->vim_entries[i];
3190 uint64_t obsolete_bytes = 0;
3191 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
3192 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];
3193
3194 /*
3195 * This is not very efficient but it's easy to
3196 * verify correctness.
3197 */
3198 for (uint64_t inner_offset = 0;
3199 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst);
3200 inner_offset += 1 << vd->vdev_ashift) {
3201 if (range_tree_contains(msp->ms_tree,
3202 offset + inner_offset, 1 << vd->vdev_ashift)) {
3203 obsolete_bytes += 1 << vd->vdev_ashift;
3204 }
3205 }
3206
3207 int64_t bytes_leaked = obsolete_bytes -
3208 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i];
3209 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=,
3210 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]);
3211 if (bytes_leaked != 0 &&
3212 (vdev_obsolete_counts_are_precise(vd) ||
3213 dump_opt['d'] >= 5)) {
3214 (void) printf("obsolete indirect mapping count "
3215 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n",
3216 (u_longlong_t)vd->vdev_id,
3217 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
3218 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
3219 (u_longlong_t)bytes_leaked);
3220 }
3221 total_leaked += ABS(bytes_leaked);
3222 }
3223
3224 if (!vdev_obsolete_counts_are_precise(vd) && total_leaked > 0) {
3225 int pct_leaked = total_leaked * 100 /
3226 vdev_indirect_mapping_bytes_mapped(vim);
3227 (void) printf("cannot verify obsolete indirect mapping "
3228 "counts of vdev %llu because precise feature was not "
3229 "enabled when it was removed: %d%% (%llx bytes) of mapping"
3230 "unreferenced\n",
3231 (u_longlong_t)vd->vdev_id, pct_leaked,
3232 (u_longlong_t)total_leaked);
3233 } else if (total_leaked > 0) {
3234 (void) printf("obsolete indirect mapping count mismatch "
3235 "for vdev %llu -- %llx total bytes mismatched\n",
3236 (u_longlong_t)vd->vdev_id,
3237 (u_longlong_t)total_leaked);
3238 leaks |= B_TRUE;
3239 }
3240
3241 vdev_indirect_mapping_free_obsolete_counts(vim,
3242 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
3243 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL;
3244
3245 return (leaks);
3246 }
3247
3248 static boolean_t
3249 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb)
3250 {
3251 boolean_t leaks = B_FALSE;
3252 if (!dump_opt['L']) {
3253 vdev_t *rvd = spa->spa_root_vdev;
3254 for (unsigned c = 0; c < rvd->vdev_children; c++) {
3255 vdev_t *vd = rvd->vdev_child[c];
3256 metaslab_group_t *mg = vd->vdev_mg;
3257
3258 if (zcb->zcb_vd_obsolete_counts[c] != NULL) {
3259 leaks |= zdb_check_for_obsolete_leaks(vd, zcb);
3260 }
3261
3262 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
3263 metaslab_t *msp = vd->vdev_ms[m];
3264 ASSERT3P(mg, ==, msp->ms_group);
3265
3266 /*
3267 * The ms_tree has been overloaded to
3268 * contain allocated segments. Now that we
3269 * finished traversing all blocks, any
3270 * block that remains in the ms_tree
3271 * represents an allocated block that we
3272 * did not claim during the traversal.
3273 * Claimed blocks would have been removed
3274 * from the ms_tree. For indirect vdevs,
3275 * space remaining in the tree represents
3276 * parts of the mapping that are not
3277 * referenced, which is not a bug.
3278 */
3279 if (vd->vdev_ops == &vdev_indirect_ops) {
3280 range_tree_vacate(msp->ms_tree,
3281 NULL, NULL);
3282 } else {
3283 range_tree_vacate(msp->ms_tree,
3284 zdb_leak, vd);
3285 }
3286
3287 if (msp->ms_loaded) {
3288 msp->ms_loaded = B_FALSE;
3289 }
3290 }
3291 }
3292
3293 umem_free(zcb->zcb_vd_obsolete_counts,
3294 rvd->vdev_children * sizeof (uint32_t *));
3295 zcb->zcb_vd_obsolete_counts = NULL;
3296 }
3297 return (leaks);
3298 }
3299
3300 /* ARGSUSED */
3301 static int
3302 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
3303 {
3304 zdb_cb_t *zcb = arg;
3305
3306 if (dump_opt['b'] >= 5) {
3307 char blkbuf[BP_SPRINTF_LEN];
3308 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3309 (void) printf("[%s] %s\n",
3310 "deferred free", blkbuf);
3311 }
3312 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
3313 return (0);
3314 }
3315
3316 static int
3317 dump_block_stats(spa_t *spa)
3318 {
3319 zdb_cb_t zcb;
3320 zdb_blkstats_t *zb, *tzb;
3321 uint64_t norm_alloc, norm_space, total_alloc, total_found;
3322 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
3323 boolean_t leaks = B_FALSE;
3324
3325 bzero(&zcb, sizeof (zcb));
3326 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
3327 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
3328 (dump_opt['c'] == 1) ? "metadata " : "",
3329 dump_opt['c'] ? "checksums " : "",
3330 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
3331 !dump_opt['L'] ? "nothing leaked " : "");
3332
3333 /*
3334 * Load all space maps as SM_ALLOC maps, then traverse the pool
3335 * claiming each block we discover. If the pool is perfectly
3336 * consistent, the space maps will be empty when we're done.
3337 * Anything left over is a leak; any block we can't claim (because
3338 * it's not part of any space map) is a double allocation,
3339 * reference to a freed block, or an unclaimed log block.
3340 */
3341 zdb_leak_init(spa, &zcb);
3342
3343 /*
3344 * If there's a deferred-free bplist, process that first.
3345 */
3346 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
3347 count_block_cb, &zcb, NULL);
3348
3349 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3350 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
3351 count_block_cb, &zcb, NULL);
3352 }
3353
3354 zdb_claim_removing(spa, &zcb);
3355
3356 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
3357 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
3358 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
3359 &zcb, NULL));
3360 }
3361
3362 if (dump_opt['c'] > 1)
3363 flags |= TRAVERSE_PREFETCH_DATA;
3364
3365 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
3366 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
3367 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
3368
3369 /*
3370 * If we've traversed the data blocks then we need to wait for those
3371 * I/Os to complete. We leverage "The Godfather" zio to wait on
3372 * all async I/Os to complete.
3373 */
3374 if (dump_opt['c']) {
3375 for (int i = 0; i < max_ncpus; i++) {
3376 (void) zio_wait(spa->spa_async_zio_root[i]);
3377 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
3378 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
3379 ZIO_FLAG_GODFATHER);
3380 }
3381 }
3382
3383 if (zcb.zcb_haderrors) {
3384 (void) printf("\nError counts:\n\n");
3385 (void) printf("\t%5s %s\n", "errno", "count");
3386 for (int e = 0; e < 256; e++) {
3387 if (zcb.zcb_errors[e] != 0) {
3388 (void) printf("\t%5d %llu\n",
3389 e, (u_longlong_t)zcb.zcb_errors[e]);
3390 }
3391 }
3392 }
3393
3394 /*
3395 * Report any leaked segments.
3396 */
3397 leaks |= zdb_leak_fini(spa, &zcb);
3398
3399 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
3400
3401 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
3402 norm_space = metaslab_class_get_space(spa_normal_class(spa));
3403
3404 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
3405 total_found = tzb->zb_asize - zcb.zcb_dedup_asize +
3406 zcb.zcb_removing_size;
3407
3408 if (total_found == total_alloc) {
3409 if (!dump_opt['L'])
3410 (void) printf("\n\tNo leaks (block sum matches space"
3411 " maps exactly)\n");
3412 } else {
3413 (void) printf("block traversal size %llu != alloc %llu "
3414 "(%s %lld)\n",
3415 (u_longlong_t)total_found,
3416 (u_longlong_t)total_alloc,
3417 (dump_opt['L']) ? "unreachable" : "leaked",
3418 (longlong_t)(total_alloc - total_found));
3419 leaks = B_TRUE;
3420 }
3421
3422 if (tzb->zb_count == 0)
3423 return (2);
3424
3425 (void) printf("\n");
3426 (void) printf("\tbp count: %10llu\n",
3427 (u_longlong_t)tzb->zb_count);
3428 (void) printf("\tganged count: %10llu\n",
3429 (longlong_t)tzb->zb_gangs);
3430 (void) printf("\tbp logical: %10llu avg: %6llu\n",
3431 (u_longlong_t)tzb->zb_lsize,
3432 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
3433 (void) printf("\tbp physical: %10llu avg:"
3434 " %6llu compression: %6.2f\n",
3435 (u_longlong_t)tzb->zb_psize,
3436 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
3437 (double)tzb->zb_lsize / tzb->zb_psize);
3438 (void) printf("\tbp allocated: %10llu avg:"
3439 " %6llu compression: %6.2f\n",
3440 (u_longlong_t)tzb->zb_asize,
3441 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
3442 (double)tzb->zb_lsize / tzb->zb_asize);
3443 (void) printf("\tbp deduped: %10llu ref>1:"
3444 " %6llu deduplication: %6.2f\n",
3445 (u_longlong_t)zcb.zcb_dedup_asize,
3446 (u_longlong_t)zcb.zcb_dedup_blocks,
3447 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
3448 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
3449 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
3450
3451 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
3452 if (zcb.zcb_embedded_blocks[i] == 0)
3453 continue;
3454 (void) printf("\n");
3455 (void) printf("\tadditional, non-pointer bps of type %u: "
3456 "%10llu\n",
3457 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
3458
3459 if (dump_opt['b'] >= 3) {
3460 (void) printf("\t number of (compressed) bytes: "
3461 "number of bps\n");
3462 dump_histogram(zcb.zcb_embedded_histogram[i],
3463 sizeof (zcb.zcb_embedded_histogram[i]) /
3464 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
3465 }
3466 }
3467
3468 if (tzb->zb_ditto_samevdev != 0) {
3469 (void) printf("\tDittoed blocks on same vdev: %llu\n",
3470 (longlong_t)tzb->zb_ditto_samevdev);
3471 }
3472
3473 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) {
3474 vdev_t *vd = spa->spa_root_vdev->vdev_child[v];
3475 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3476
3477 if (vim == NULL) {
3478 continue;
3479 }
3480
3481 char mem[32];
3482 zdb_nicenum(vdev_indirect_mapping_num_entries(vim),
3483 mem, vdev_indirect_mapping_size(vim));
3484
3485 (void) printf("\tindirect vdev id %llu has %llu segments "
3486 "(%s in memory)\n",
3487 (longlong_t)vd->vdev_id,
3488 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem);
3489 }
3490
3491 if (dump_opt['b'] >= 2) {
3492 int l, t, level;
3493 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
3494 "\t avg\t comp\t%%Total\tType\n");
3495
3496 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
3497 char csize[32], lsize[32], psize[32], asize[32];
3498 char avg[32], gang[32];
3499 const char *typename;
3500
3501 /* make sure nicenum has enough space */
3502 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ);
3503 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
3504 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ);
3505 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
3506 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ);
3507 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ);
3508
3509 if (t < DMU_OT_NUMTYPES)
3510 typename = dmu_ot[t].ot_name;
3511 else
3512 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
3513
3514 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
3515 (void) printf("%6s\t%5s\t%5s\t%5s"
3516 "\t%5s\t%5s\t%6s\t%s\n",
3517 "-",
3518 "-",
3519 "-",
3520 "-",
3521 "-",
3522 "-",
3523 "-",
3524 typename);
3525 continue;
3526 }
3527
3528 for (l = ZB_TOTAL - 1; l >= -1; l--) {
3529 level = (l == -1 ? ZB_TOTAL : l);
3530 zb = &zcb.zcb_type[level][t];
3531
3532 if (zb->zb_asize == 0)
3533 continue;
3534
3535 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
3536 continue;
3537
3538 if (level == 0 && zb->zb_asize ==
3539 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
3540 continue;
3541
3542 zdb_nicenum(zb->zb_count, csize,
3543 sizeof (csize));
3544 zdb_nicenum(zb->zb_lsize, lsize,
3545 sizeof (lsize));
3546 zdb_nicenum(zb->zb_psize, psize,
3547 sizeof (psize));
3548 zdb_nicenum(zb->zb_asize, asize,
3549 sizeof (asize));
3550 zdb_nicenum(zb->zb_asize / zb->zb_count, avg,
3551 sizeof (avg));
3552 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang));
3553
3554 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
3555 "\t%5.2f\t%6.2f\t",
3556 csize, lsize, psize, asize, avg,
3557 (double)zb->zb_lsize / zb->zb_psize,
3558 100.0 * zb->zb_asize / tzb->zb_asize);
3559
3560 if (level == ZB_TOTAL)
3561 (void) printf("%s\n", typename);
3562 else
3563 (void) printf(" L%d %s\n",
3564 level, typename);
3565
3566 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
3567 (void) printf("\t number of ganged "
3568 "blocks: %s\n", gang);
3569 }
3570
3571 if (dump_opt['b'] >= 4) {
3572 (void) printf("psize "
3573 "(in 512-byte sectors): "
3574 "number of blocks\n");
3575 dump_histogram(zb->zb_psize_histogram,
3576 PSIZE_HISTO_SIZE, 0);
3577 }
3578 }
3579 }
3580 }
3581
3582 (void) printf("\n");
3583
3584 if (leaks)
3585 return (2);
3586
3587 if (zcb.zcb_haderrors)
3588 return (3);
3589
3590 return (0);
3591 }
3592
3593 typedef struct zdb_ddt_entry {
3594 ddt_key_t zdde_key;
3595 uint64_t zdde_ref_blocks;
3596 uint64_t zdde_ref_lsize;
3597 uint64_t zdde_ref_psize;
3598 uint64_t zdde_ref_dsize;
3599 avl_node_t zdde_node;
3600 } zdb_ddt_entry_t;
3601
3602 /* ARGSUSED */
3603 static int
3604 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3605 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3606 {
3607 avl_tree_t *t = arg;
3608 avl_index_t where;
3609 zdb_ddt_entry_t *zdde, zdde_search;
3610
3611 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
3612 return (0);
3613
3614 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
3615 (void) printf("traversing objset %llu, %llu objects, "
3616 "%lu blocks so far\n",
3617 (u_longlong_t)zb->zb_objset,
3618 (u_longlong_t)BP_GET_FILL(bp),
3619 avl_numnodes(t));
3620 }
3621
3622 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
3623 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
3624 return (0);
3625
3626 ddt_key_fill(&zdde_search.zdde_key, bp);
3627
3628 zdde = avl_find(t, &zdde_search, &where);
3629
3630 if (zdde == NULL) {
3631 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
3632 zdde->zdde_key = zdde_search.zdde_key;
3633 avl_insert(t, zdde, where);
3634 }
3635
3636 zdde->zdde_ref_blocks += 1;
3637 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
3638 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
3639 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
3640
3641 return (0);
3642 }
3643
3644 static void
3645 dump_simulated_ddt(spa_t *spa)
3646 {
3647 avl_tree_t t;
3648 void *cookie = NULL;
3649 zdb_ddt_entry_t *zdde;
3650 ddt_histogram_t ddh_total;
3651 ddt_stat_t dds_total;
3652
3653 bzero(&ddh_total, sizeof (ddh_total));
3654 bzero(&dds_total, sizeof (dds_total));
3655 avl_create(&t, ddt_entry_compare,
3656 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
3657
3658 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3659
3660 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
3661 zdb_ddt_add_cb, &t);
3662
3663 spa_config_exit(spa, SCL_CONFIG, FTAG);
3664
3665 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
3666 ddt_stat_t dds;
3667 uint64_t refcnt = zdde->zdde_ref_blocks;
3668 ASSERT(refcnt != 0);
3669
3670 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
3671 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
3672 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
3673 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
3674
3675 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
3676 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
3677 dds.dds_ref_psize = zdde->zdde_ref_psize;
3678 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3679
3680 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3681 &dds, 0);
3682
3683 umem_free(zdde, sizeof (*zdde));
3684 }
3685
3686 avl_destroy(&t);
3687
3688 ddt_histogram_stat(&dds_total, &ddh_total);
3689
3690 (void) printf("Simulated DDT histogram:\n");
3691
3692 zpool_dump_ddt(&dds_total, &ddh_total);
3693
3694 dump_dedup_ratio(&dds_total);
3695 }
3696
3697 static int
3698 verify_device_removal_feature_counts(spa_t *spa)
3699 {
3700 uint64_t dr_feature_refcount = 0;
3701 uint64_t oc_feature_refcount = 0;
3702 uint64_t indirect_vdev_count = 0;
3703 uint64_t precise_vdev_count = 0;
3704 uint64_t obsolete_counts_object_count = 0;
3705 uint64_t obsolete_sm_count = 0;
3706 uint64_t obsolete_counts_count = 0;
3707 uint64_t scip_count = 0;
3708 uint64_t obsolete_bpobj_count = 0;
3709 int ret = 0;
3710
3711 spa_condensing_indirect_phys_t *scip =
3712 &spa->spa_condensing_indirect_phys;
3713 if (scip->scip_next_mapping_object != 0) {
3714 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev];
3715 ASSERT(scip->scip_prev_obsolete_sm_object != 0);
3716 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops);
3717
3718 (void) printf("Condensing indirect vdev %llu: new mapping "
3719 "object %llu, prev obsolete sm %llu\n",
3720 (u_longlong_t)scip->scip_vdev,
3721 (u_longlong_t)scip->scip_next_mapping_object,
3722 (u_longlong_t)scip->scip_prev_obsolete_sm_object);
3723 if (scip->scip_prev_obsolete_sm_object != 0) {
3724 space_map_t *prev_obsolete_sm = NULL;
3725 VERIFY0(space_map_open(&prev_obsolete_sm,
3726 spa->spa_meta_objset,
3727 scip->scip_prev_obsolete_sm_object,
3728 0, vd->vdev_asize, 0));
3729 space_map_update(prev_obsolete_sm);
3730 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm);
3731 (void) printf("\n");
3732 space_map_close(prev_obsolete_sm);
3733 }
3734
3735 scip_count += 2;
3736 }
3737
3738 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) {
3739 vdev_t *vd = spa->spa_root_vdev->vdev_child[i];
3740 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
3741
3742 if (vic->vic_mapping_object != 0) {
3743 ASSERT(vd->vdev_ops == &vdev_indirect_ops ||
3744 vd->vdev_removing);
3745 indirect_vdev_count++;
3746
3747 if (vd->vdev_indirect_mapping->vim_havecounts) {
3748 obsolete_counts_count++;
3749 }
3750 }
3751 if (vdev_obsolete_counts_are_precise(vd)) {
3752 ASSERT(vic->vic_mapping_object != 0);
3753 precise_vdev_count++;
3754 }
3755 if (vdev_obsolete_sm_object(vd) != 0) {
3756 ASSERT(vic->vic_mapping_object != 0);
3757 obsolete_sm_count++;
3758 }
3759 }
3760
3761 (void) feature_get_refcount(spa,
3762 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL],
3763 &dr_feature_refcount);
3764 (void) feature_get_refcount(spa,
3765 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS],
3766 &oc_feature_refcount);
3767
3768 if (dr_feature_refcount != indirect_vdev_count) {
3769 ret = 1;
3770 (void) printf("Number of indirect vdevs (%llu) " \
3771 "does not match feature count (%llu)\n",
3772 (u_longlong_t)indirect_vdev_count,
3773 (u_longlong_t)dr_feature_refcount);
3774 } else {
3775 (void) printf("Verified device_removal feature refcount " \
3776 "of %llu is correct\n",
3777 (u_longlong_t)dr_feature_refcount);
3778 }
3779
3780 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT,
3781 DMU_POOL_OBSOLETE_BPOBJ) == 0) {
3782 obsolete_bpobj_count++;
3783 }
3784
3785
3786 obsolete_counts_object_count = precise_vdev_count;
3787 obsolete_counts_object_count += obsolete_sm_count;
3788 obsolete_counts_object_count += obsolete_counts_count;
3789 obsolete_counts_object_count += scip_count;
3790 obsolete_counts_object_count += obsolete_bpobj_count;
3791 obsolete_counts_object_count += remap_deadlist_count;
3792
3793 if (oc_feature_refcount != obsolete_counts_object_count) {
3794 ret = 1;
3795 (void) printf("Number of obsolete counts objects (%llu) " \
3796 "does not match feature count (%llu)\n",
3797 (u_longlong_t)obsolete_counts_object_count,
3798 (u_longlong_t)oc_feature_refcount);
3799 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu "
3800 "ob:%llu rd:%llu\n",
3801 (u_longlong_t)precise_vdev_count,
3802 (u_longlong_t)obsolete_sm_count,
3803 (u_longlong_t)obsolete_counts_count,
3804 (u_longlong_t)scip_count,
3805 (u_longlong_t)obsolete_bpobj_count,
3806 (u_longlong_t)remap_deadlist_count);
3807 } else {
3808 (void) printf("Verified indirect_refcount feature refcount " \
3809 "of %llu is correct\n",
3810 (u_longlong_t)oc_feature_refcount);
3811 }
3812 return (ret);
3813 }
3814
3815 static void
3816 dump_zpool(spa_t *spa)
3817 {
3818 dsl_pool_t *dp = spa_get_dsl(spa);
3819 int rc = 0;
3820
3821 if (dump_opt['S']) {
3822 dump_simulated_ddt(spa);
3823 return;
3824 }
3825
3826 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3827 (void) printf("\nCached configuration:\n");
3828 dump_nvlist(spa->spa_config, 8);
3829 }
3830
3831 if (dump_opt['C'])
3832 dump_config(spa);
3833
3834 if (dump_opt['u'])
3835 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3836
3837 if (dump_opt['D'])
3838 dump_all_ddts(spa);
3839
3840 if (dump_opt['d'] > 2 || dump_opt['m'])
3841 dump_metaslabs(spa);
3842 if (dump_opt['M'])
3843 dump_metaslab_groups(spa);
3844
3845 if (dump_opt['d'] || dump_opt['i']) {
3846 dump_dir(dp->dp_meta_objset);
3847 if (dump_opt['d'] >= 3) {
3848 dsl_pool_t *dp = spa->spa_dsl_pool;
3849 dump_full_bpobj(&spa->spa_deferred_bpobj,
3850 "Deferred frees", 0);
3851 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3852 dump_full_bpobj(&dp->dp_free_bpobj,
3853 "Pool snapshot frees", 0);
3854 }
3855 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
3856 ASSERT(spa_feature_is_enabled(spa,
3857 SPA_FEATURE_DEVICE_REMOVAL));
3858 dump_full_bpobj(&dp->dp_obsolete_bpobj,
3859 "Pool obsolete blocks", 0);
3860 }
3861
3862 if (spa_feature_is_active(spa,
3863 SPA_FEATURE_ASYNC_DESTROY)) {
3864 dump_bptree(spa->spa_meta_objset,
3865 dp->dp_bptree_obj,
3866 "Pool dataset frees");
3867 }
3868 dump_dtl(spa->spa_root_vdev, 0);
3869 }
3870 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3871 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3872
3873 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
3874 uint64_t refcount;
3875
3876 if (!(spa_feature_table[f].fi_flags &
3877 ZFEATURE_FLAG_PER_DATASET) ||
3878 !spa_feature_is_enabled(spa, f)) {
3879 ASSERT0(dataset_feature_count[f]);
3880 continue;
3881 }
3882 (void) feature_get_refcount(spa,
3883 &spa_feature_table[f], &refcount);
3884 if (dataset_feature_count[f] != refcount) {
3885 (void) printf("%s feature refcount mismatch: "
3886 "%lld datasets != %lld refcount\n",
3887 spa_feature_table[f].fi_uname,
3888 (longlong_t)dataset_feature_count[f],
3889 (longlong_t)refcount);
3890 rc = 2;
3891 } else {
3892 (void) printf("Verified %s feature refcount "
3893 "of %llu is correct\n",
3894 spa_feature_table[f].fi_uname,
3895 (longlong_t)refcount);
3896 }
3897 }
3898
3899 if (rc == 0) {
3900 rc = verify_device_removal_feature_counts(spa);
3901 }
3902 }
3903 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3904 rc = dump_block_stats(spa);
3905
3906 if (rc == 0)
3907 rc = verify_spacemap_refcounts(spa);
3908
3909 if (dump_opt['s'])
3910 show_pool_stats(spa);
3911
3912 if (dump_opt['h'])
3913 dump_history(spa);
3914
3915 if (rc != 0) {
3916 dump_debug_buffer();
3917 exit(rc);
3918 }
3919 }
3920
3921 #define ZDB_FLAG_CHECKSUM 0x0001
3922 #define ZDB_FLAG_DECOMPRESS 0x0002
3923 #define ZDB_FLAG_BSWAP 0x0004
3924 #define ZDB_FLAG_GBH 0x0008
3925 #define ZDB_FLAG_INDIRECT 0x0010
3926 #define ZDB_FLAG_PHYS 0x0020
3927 #define ZDB_FLAG_RAW 0x0040
3928 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3929
3930 static int flagbits[256];
3931
3932 static void
3933 zdb_print_blkptr(blkptr_t *bp, int flags)
3934 {
3935 char blkbuf[BP_SPRINTF_LEN];
3936
3937 if (flags & ZDB_FLAG_BSWAP)
3938 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3939
3940 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3941 (void) printf("%s\n", blkbuf);
3942 }
3943
3944 static void
3945 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3946 {
3947 int i;
3948
3949 for (i = 0; i < nbps; i++)
3950 zdb_print_blkptr(&bp[i], flags);
3951 }
3952
3953 static void
3954 zdb_dump_gbh(void *buf, int flags)
3955 {
3956 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3957 }
3958
3959 static void
3960 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3961 {
3962 if (flags & ZDB_FLAG_BSWAP)
3963 byteswap_uint64_array(buf, size);
3964 (void) write(1, buf, size);
3965 }
3966
3967 static void
3968 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3969 {
3970 uint64_t *d = (uint64_t *)buf;
3971 unsigned nwords = size / sizeof (uint64_t);
3972 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3973 unsigned i, j;
3974 const char *hdr;
3975 char *c;
3976
3977
3978 if (do_bswap)
3979 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3980 else
3981 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3982
3983 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3984
3985 for (i = 0; i < nwords; i += 2) {
3986 (void) printf("%06llx: %016llx %016llx ",
3987 (u_longlong_t)(i * sizeof (uint64_t)),
3988 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3989 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3990
3991 c = (char *)&d[i];
3992 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3993 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3994 (void) printf("\n");
3995 }
3996 }
3997
3998 /*
3999 * There are two acceptable formats:
4000 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
4001 * child[.child]* - For example: 0.1.1
4002 *
4003 * The second form can be used to specify arbitrary vdevs anywhere
4004 * in the heirarchy. For example, in a pool with a mirror of
4005 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
4006 */
4007 static vdev_t *
4008 zdb_vdev_lookup(vdev_t *vdev, const char *path)
4009 {
4010 char *s, *p, *q;
4011 unsigned i;
4012
4013 if (vdev == NULL)
4014 return (NULL);
4015
4016 /* First, assume the x.x.x.x format */
4017 i = strtoul(path, &s, 10);
4018 if (s == path || (s && *s != '.' && *s != '\0'))
4019 goto name;
4020 if (i >= vdev->vdev_children)
4021 return (NULL);
4022
4023 vdev = vdev->vdev_child[i];
4024 if (*s == '\0')
4025 return (vdev);
4026 return (zdb_vdev_lookup(vdev, s+1));
4027
4028 name:
4029 for (i = 0; i < vdev->vdev_children; i++) {
4030 vdev_t *vc = vdev->vdev_child[i];
4031
4032 if (vc->vdev_path == NULL) {
4033 vc = zdb_vdev_lookup(vc, path);
4034 if (vc == NULL)
4035 continue;
4036 else
4037 return (vc);
4038 }
4039
4040 p = strrchr(vc->vdev_path, '/');
4041 p = p ? p + 1 : vc->vdev_path;
4042 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
4043
4044 if (strcmp(vc->vdev_path, path) == 0)
4045 return (vc);
4046 if (strcmp(p, path) == 0)
4047 return (vc);
4048 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
4049 return (vc);
4050 }
4051
4052 return (NULL);
4053 }
4054
4055 /* ARGSUSED */
4056 static int
4057 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused)
4058 {
4059 return (random_get_pseudo_bytes(buf, len));
4060 }
4061
4062 /*
4063 * Read a block from a pool and print it out. The syntax of the
4064 * block descriptor is:
4065 *
4066 * pool:vdev_specifier:offset:size[:flags]
4067 *
4068 * pool - The name of the pool you wish to read from
4069 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
4070 * offset - offset, in hex, in bytes
4071 * size - Amount of data to read, in hex, in bytes
4072 * flags - A string of characters specifying options
4073 * b: Decode a blkptr at given offset within block
4074 * *c: Calculate and display checksums
4075 * d: Decompress data before dumping
4076 * e: Byteswap data before dumping
4077 * g: Display data as a gang block header
4078 * i: Display as an indirect block
4079 * p: Do I/O to physical offset
4080 * r: Dump raw data to stdout
4081 *
4082 * * = not yet implemented
4083 */
4084 static void
4085 zdb_read_block(char *thing, spa_t *spa)
4086 {
4087 blkptr_t blk, *bp = &blk;
4088 dva_t *dva = bp->blk_dva;
4089 int flags = 0;
4090 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
4091 zio_t *zio;
4092 vdev_t *vd;
4093 abd_t *pabd;
4094 void *lbuf, *buf;
4095 const char *s, *vdev;
4096 char *p, *dup, *flagstr;
4097 int i, error;
4098
4099 dup = strdup(thing);
4100 s = strtok(dup, ":");
4101 vdev = s ? s : "";
4102 s = strtok(NULL, ":");
4103 offset = strtoull(s ? s : "", NULL, 16);
4104 s = strtok(NULL, ":");
4105 size = strtoull(s ? s : "", NULL, 16);
4106 s = strtok(NULL, ":");
4107 if (s)
4108 flagstr = strdup(s);
4109 else
4110 flagstr = strdup("");
4111
4112 s = NULL;
4113 if (size == 0)
4114 s = "size must not be zero";
4115 if (!IS_P2ALIGNED(size, DEV_BSIZE))
4116 s = "size must be a multiple of sector size";
4117 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
4118 s = "offset must be a multiple of sector size";
4119 if (s) {
4120 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
4121 free(dup);
4122 return;
4123 }
4124
4125 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
4126 for (i = 0; flagstr[i]; i++) {
4127 int bit = flagbits[(uchar_t)flagstr[i]];
4128
4129 if (bit == 0) {
4130 (void) printf("***Invalid flag: %c\n",
4131 flagstr[i]);
4132 continue;
4133 }
4134 flags |= bit;
4135
4136 /* If it's not something with an argument, keep going */
4137 if ((bit & (ZDB_FLAG_CHECKSUM |
4138 ZDB_FLAG_PRINT_BLKPTR)) == 0)
4139 continue;
4140
4141 p = &flagstr[i + 1];
4142 if (bit == ZDB_FLAG_PRINT_BLKPTR)
4143 blkptr_offset = strtoull(p, &p, 16);
4144 if (*p != ':' && *p != '\0') {
4145 (void) printf("***Invalid flag arg: '%s'\n", s);
4146 free(dup);
4147 return;
4148 }
4149 }
4150 }
4151 free(flagstr);
4152
4153 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
4154 if (vd == NULL) {
4155 (void) printf("***Invalid vdev: %s\n", vdev);
4156 free(dup);
4157 return;
4158 } else {
4159 if (vd->vdev_path)
4160 (void) fprintf(stderr, "Found vdev: %s\n",
4161 vd->vdev_path);
4162 else
4163 (void) fprintf(stderr, "Found vdev type: %s\n",
4164 vd->vdev_ops->vdev_op_type);
4165 }
4166
4167 psize = size;
4168 lsize = size;
4169
4170 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE);
4171 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4172
4173 BP_ZERO(bp);
4174
4175 DVA_SET_VDEV(&dva[0], vd->vdev_id);
4176 DVA_SET_OFFSET(&dva[0], offset);
4177 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
4178 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
4179
4180 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
4181
4182 BP_SET_LSIZE(bp, lsize);
4183 BP_SET_PSIZE(bp, psize);
4184 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
4185 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
4186 BP_SET_TYPE(bp, DMU_OT_NONE);
4187 BP_SET_LEVEL(bp, 0);
4188 BP_SET_DEDUP(bp, 0);
4189 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
4190
4191 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
4192 zio = zio_root(spa, NULL, NULL, 0);
4193
4194 if (vd == vd->vdev_top) {
4195 /*
4196 * Treat this as a normal block read.
4197 */
4198 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
4199 ZIO_PRIORITY_SYNC_READ,
4200 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
4201 } else {
4202 /*
4203 * Treat this as a vdev child I/O.
4204 */
4205 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
4206 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
4207 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
4208 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
4209 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL,
4210 NULL, NULL));
4211 }
4212
4213 error = zio_wait(zio);
4214 spa_config_exit(spa, SCL_STATE, FTAG);
4215
4216 if (error) {
4217 (void) printf("Read of %s failed, error: %d\n", thing, error);
4218 goto out;
4219 }
4220
4221 if (flags & ZDB_FLAG_DECOMPRESS) {
4222 /*
4223 * We don't know how the data was compressed, so just try
4224 * every decompress function at every inflated blocksize.
4225 */
4226 enum zio_compress c;
4227 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4228 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4229
4230 abd_copy_to_buf(pbuf2, pabd, psize);
4231
4232 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize,
4233 random_get_pseudo_bytes_cb, NULL));
4234
4235 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
4236 SPA_MAXBLOCKSIZE - psize));
4237
4238 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
4239 lsize -= SPA_MINBLOCKSIZE) {
4240 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
4241 if (zio_decompress_data(c, pabd,
4242 lbuf, psize, lsize) == 0 &&
4243 zio_decompress_data_buf(c, pbuf2,
4244 lbuf2, psize, lsize) == 0 &&
4245 bcmp(lbuf, lbuf2, lsize) == 0)
4246 break;
4247 }
4248 if (c != ZIO_COMPRESS_FUNCTIONS)
4249 break;
4250 lsize -= SPA_MINBLOCKSIZE;
4251 }
4252
4253 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
4254 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
4255
4256 if (lsize <= psize) {
4257 (void) printf("Decompress of %s failed\n", thing);
4258 goto out;
4259 }
4260 buf = lbuf;
4261 size = lsize;
4262 } else {
4263 buf = abd_to_buf(pabd);
4264 size = psize;
4265 }
4266
4267 if (flags & ZDB_FLAG_PRINT_BLKPTR)
4268 zdb_print_blkptr((blkptr_t *)(void *)
4269 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
4270 else if (flags & ZDB_FLAG_RAW)
4271 zdb_dump_block_raw(buf, size, flags);
4272 else if (flags & ZDB_FLAG_INDIRECT)
4273 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
4274 flags);
4275 else if (flags & ZDB_FLAG_GBH)
4276 zdb_dump_gbh(buf, flags);
4277 else
4278 zdb_dump_block(thing, buf, size, flags);
4279
4280 out:
4281 abd_free(pabd);
4282 umem_free(lbuf, SPA_MAXBLOCKSIZE);
4283 free(dup);
4284 }
4285
4286 static void
4287 zdb_embedded_block(char *thing)
4288 {
4289 blkptr_t bp;
4290 unsigned long long *words = (void *)&bp;
4291 char buf[SPA_MAXBLOCKSIZE];
4292 int err;
4293
4294 bzero(&bp, sizeof (bp));
4295 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
4296 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
4297 words + 0, words + 1, words + 2, words + 3,
4298 words + 4, words + 5, words + 6, words + 7,
4299 words + 8, words + 9, words + 10, words + 11,
4300 words + 12, words + 13, words + 14, words + 15);
4301 if (err != 16) {
4302 (void) printf("invalid input format\n");
4303 exit(1);
4304 }
4305 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
4306 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
4307 if (err != 0) {
4308 (void) printf("decode failed: %u\n", err);
4309 exit(1);
4310 }
4311 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
4312 }
4313
4314 static boolean_t
4315 pool_match(nvlist_t *cfg, char *tgt)
4316 {
4317 uint64_t v, guid = strtoull(tgt, NULL, 0);
4318 char *s;
4319
4320 if (guid != 0) {
4321 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
4322 return (v == guid);
4323 } else {
4324 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
4325 return (strcmp(s, tgt) == 0);
4326 }
4327 return (B_FALSE);
4328 }
4329
4330 static char *
4331 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
4332 {
4333 nvlist_t *pools;
4334 nvlist_t *match = NULL;
4335 char *name = NULL;
4336 char *sepp = NULL;
4337 char sep = '\0';
4338 int count = 0;
4339 importargs_t args;
4340
4341 bzero(&args, sizeof (args));
4342 args.paths = dirc;
4343 args.path = dirv;
4344 args.can_be_active = B_TRUE;
4345
4346 if ((sepp = strpbrk(*target, "/@")) != NULL) {
4347 sep = *sepp;
4348 *sepp = '\0';
4349 }
4350
4351 pools = zpool_search_import(g_zfs, &args);
4352
4353 if (pools != NULL) {
4354 nvpair_t *elem = NULL;
4355 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
4356 verify(nvpair_value_nvlist(elem, configp) == 0);
4357 if (pool_match(*configp, *target)) {
4358 count++;
4359 if (match != NULL) {
4360 /* print previously found config */
4361 if (name != NULL) {
4362 (void) printf("%s\n", name);
4363 dump_nvlist(match, 8);
4364 name = NULL;
4365 }
4366 (void) printf("%s\n",
4367 nvpair_name(elem));
4368 dump_nvlist(*configp, 8);
4369 } else {
4370 match = *configp;
4371 name = nvpair_name(elem);
4372 }
4373 }
4374 }
4375 }
4376 if (count > 1)
4377 (void) fatal("\tMatched %d pools - use pool GUID "
4378 "instead of pool name or \n"
4379 "\tpool name part of a dataset name to select pool", count);
4380
4381 if (sepp)
4382 *sepp = sep;
4383 /*
4384 * If pool GUID was specified for pool id, replace it with pool name
4385 */
4386 if (name && (strstr(*target, name) != *target)) {
4387 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
4388
4389 *target = umem_alloc(sz, UMEM_NOFAIL);
4390 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
4391 }
4392
4393 *configp = name ? match : NULL;
4394
4395 return (name);
4396 }
4397
4398 int
4399 main(int argc, char **argv)
4400 {
4401 int c;
4402 struct rlimit rl = { 1024, 1024 };
4403 spa_t *spa = NULL;
4404 objset_t *os = NULL;
4405 int dump_all = 1;
4406 int verbose = 0;
4407 int error = 0;
4408 char **searchdirs = NULL;
4409 int nsearch = 0;
4410 char *target;
4411 nvlist_t *policy = NULL;
4412 uint64_t max_txg = UINT64_MAX;
4413 int flags = ZFS_IMPORT_MISSING_LOG;
4414 int rewind = ZPOOL_NEVER_REWIND;
4415 char *spa_config_path_env;
4416 boolean_t target_is_spa = B_TRUE;
4417
4418 (void) setrlimit(RLIMIT_NOFILE, &rl);
4419 (void) enable_extended_FILE_stdio(-1, -1);
4420
4421 dprintf_setup(&argc, argv);
4422
4423 /*
4424 * If there is an environment variable SPA_CONFIG_PATH it overrides
4425 * default spa_config_path setting. If -U flag is specified it will
4426 * override this environment variable settings once again.
4427 */
4428 spa_config_path_env = getenv("SPA_CONFIG_PATH");
4429 if (spa_config_path_env != NULL)
4430 spa_config_path = spa_config_path_env;
4431
4432 while ((c = getopt(argc, argv,
4433 "AbcCdDeEFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
4434 switch (c) {
4435 case 'b':
4436 case 'c':
4437 case 'C':
4438 case 'd':
4439 case 'D':
4440 case 'E':
4441 case 'G':
4442 case 'h':
4443 case 'i':
4444 case 'l':
4445 case 'm':
4446 case 'M':
4447 case 'O':
4448 case 'R':
4449 case 's':
4450 case 'S':
4451 case 'u':
4452 dump_opt[c]++;
4453 dump_all = 0;
4454 break;
4455 case 'A':
4456 case 'e':
4457 case 'F':
4458 case 'L':
4459 case 'P':
4460 case 'q':
4461 case 'X':
4462 dump_opt[c]++;
4463 break;
4464 /* NB: Sort single match options below. */
4465 case 'I':
4466 max_inflight = strtoull(optarg, NULL, 0);
4467 if (max_inflight == 0) {
4468 (void) fprintf(stderr, "maximum number "
4469 "of inflight I/Os must be greater "
4470 "than 0\n");
4471 usage();
4472 }
4473 break;
4474 case 'o':
4475 error = set_global_var(optarg);
4476 if (error != 0)
4477 usage();
4478 break;
4479 case 'p':
4480 if (searchdirs == NULL) {
4481 searchdirs = umem_alloc(sizeof (char *),
4482 UMEM_NOFAIL);
4483 } else {
4484 char **tmp = umem_alloc((nsearch + 1) *
4485 sizeof (char *), UMEM_NOFAIL);
4486 bcopy(searchdirs, tmp, nsearch *
4487 sizeof (char *));
4488 umem_free(searchdirs,
4489 nsearch * sizeof (char *));
4490 searchdirs = tmp;
4491 }
4492 searchdirs[nsearch++] = optarg;
4493 break;
4494 case 't':
4495 max_txg = strtoull(optarg, NULL, 0);
4496 if (max_txg < TXG_INITIAL) {
4497 (void) fprintf(stderr, "incorrect txg "
4498 "specified: %s\n", optarg);
4499 usage();
4500 }
4501 break;
4502 case 'U':
4503 spa_config_path = optarg;
4504 if (spa_config_path[0] != '/') {
4505 (void) fprintf(stderr,
4506 "cachefile must be an absolute path "
4507 "(i.e. start with a slash)\n");
4508 usage();
4509 }
4510 break;
4511 case 'v':
4512 verbose++;
4513 break;
4514 case 'V':
4515 flags = ZFS_IMPORT_VERBATIM;
4516 break;
4517 case 'x':
4518 vn_dumpdir = optarg;
4519 break;
4520 default:
4521 usage();
4522 break;
4523 }
4524 }
4525
4526 if (!dump_opt['e'] && searchdirs != NULL) {
4527 (void) fprintf(stderr, "-p option requires use of -e\n");
4528 usage();
4529 }
4530
4531 /*
4532 * ZDB does not typically re-read blocks; therefore limit the ARC
4533 * to 256 MB, which can be used entirely for metadata.
4534 */
4535 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
4536
4537 /*
4538 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
4539 * "zdb -b" uses traversal prefetch which uses async reads.
4540 * For good performance, let several of them be active at once.
4541 */
4542 zfs_vdev_async_read_max_active = 10;
4543
4544 /*
4545 * Disable reference tracking for better performance.
4546 */
4547 reference_tracking_enable = B_FALSE;
4548
4549 kernel_init(FREAD);
4550 g_zfs = libzfs_init();
4551 ASSERT(g_zfs != NULL);
4552
4553 if (dump_all)
4554 verbose = MAX(verbose, 1);
4555
4556 for (c = 0; c < 256; c++) {
4557 if (dump_all && strchr("AeEFlLOPRSX", c) == NULL)
4558 dump_opt[c] = 1;
4559 if (dump_opt[c])
4560 dump_opt[c] += verbose;
4561 }
4562
4563 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
4564 zfs_recover = (dump_opt['A'] > 1);
4565
4566 argc -= optind;
4567 argv += optind;
4568
4569 if (argc < 2 && dump_opt['R'])
4570 usage();
4571
4572 if (dump_opt['E']) {
4573 if (argc != 1)
4574 usage();
4575 zdb_embedded_block(argv[0]);
4576 return (0);
4577 }
4578
4579 if (argc < 1) {
4580 if (!dump_opt['e'] && dump_opt['C']) {
4581 dump_cachefile(spa_config_path);
4582 return (0);
4583 }
4584 usage();
4585 }
4586
4587 if (dump_opt['l'])
4588 return (dump_label(argv[0]));
4589
4590 if (dump_opt['O']) {
4591 if (argc != 2)
4592 usage();
4593 dump_opt['v'] = verbose + 3;
4594 return (dump_path(argv[0], argv[1]));
4595 }
4596
4597 if (dump_opt['X'] || dump_opt['F'])
4598 rewind = ZPOOL_DO_REWIND |
4599 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
4600
4601 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
4602 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
4603 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
4604 fatal("internal error: %s", strerror(ENOMEM));
4605
4606 error = 0;
4607 target = argv[0];
4608
4609 if (dump_opt['e']) {
4610 nvlist_t *cfg = NULL;
4611 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
4612
4613 error = ENOENT;
4614 if (name) {
4615 if (dump_opt['C'] > 1) {
4616 (void) printf("\nConfiguration for import:\n");
4617 dump_nvlist(cfg, 8);
4618 }
4619 if (nvlist_add_nvlist(cfg,
4620 ZPOOL_REWIND_POLICY, policy) != 0) {
4621 fatal("can't open '%s': %s",
4622 target, strerror(ENOMEM));
4623 }
4624 error = spa_import(name, cfg, NULL, flags);
4625 }
4626 }
4627
4628 if (strpbrk(target, "/@") != NULL) {
4629 size_t targetlen;
4630
4631 target_is_spa = B_FALSE;
4632 /*
4633 * Remove any trailing slash. Later code would get confused
4634 * by it, but we want to allow it so that "pool/" can
4635 * indicate that we want to dump the topmost filesystem,
4636 * rather than the whole pool.
4637 */
4638 targetlen = strlen(target);
4639 if (targetlen != 0 && target[targetlen - 1] == '/')
4640 target[targetlen - 1] = '\0';
4641 }
4642
4643 if (error == 0) {
4644 if (target_is_spa || dump_opt['R']) {
4645 error = spa_open_rewind(target, &spa, FTAG, policy,
4646 NULL);
4647 if (error) {
4648 /*
4649 * If we're missing the log device then
4650 * try opening the pool after clearing the
4651 * log state.
4652 */
4653 mutex_enter(&spa_namespace_lock);
4654 if ((spa = spa_lookup(target)) != NULL &&
4655 spa->spa_log_state == SPA_LOG_MISSING) {
4656 spa->spa_log_state = SPA_LOG_CLEAR;
4657 error = 0;
4658 }
4659 mutex_exit(&spa_namespace_lock);
4660
4661 if (!error) {
4662 error = spa_open_rewind(target, &spa,
4663 FTAG, policy, NULL);
4664 }
4665 }
4666 } else {
4667 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
4668 }
4669 }
4670 nvlist_free(policy);
4671
4672 if (error)
4673 fatal("can't open '%s': %s", target, strerror(error));
4674
4675 argv++;
4676 argc--;
4677 if (!dump_opt['R']) {
4678 if (argc > 0) {
4679 zopt_objects = argc;
4680 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
4681 for (unsigned i = 0; i < zopt_objects; i++) {
4682 errno = 0;
4683 zopt_object[i] = strtoull(argv[i], NULL, 0);
4684 if (zopt_object[i] == 0 && errno != 0)
4685 fatal("bad number %s: %s",
4686 argv[i], strerror(errno));
4687 }
4688 }
4689 if (os != NULL) {
4690 dump_dir(os);
4691 } else if (zopt_objects > 0 && !dump_opt['m']) {
4692 dump_dir(spa->spa_meta_objset);
4693 } else {
4694 dump_zpool(spa);
4695 }
4696 } else {
4697 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
4698 flagbits['c'] = ZDB_FLAG_CHECKSUM;
4699 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
4700 flagbits['e'] = ZDB_FLAG_BSWAP;
4701 flagbits['g'] = ZDB_FLAG_GBH;
4702 flagbits['i'] = ZDB_FLAG_INDIRECT;
4703 flagbits['p'] = ZDB_FLAG_PHYS;
4704 flagbits['r'] = ZDB_FLAG_RAW;
4705
4706 for (int i = 0; i < argc; i++)
4707 zdb_read_block(argv[i], spa);
4708 }
4709
4710 if (os != NULL)
4711 close_objset(os, FTAG);
4712 else
4713 spa_close(spa, FTAG);
4714
4715 fuid_table_destroy();
4716
4717 dump_debug_buffer();
4718
4719 libzfs_fini(g_zfs);
4720 kernel_fini();
4721
4722 return (0);
4723 }
Unleashed OS