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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <stdio.h>
27 #include <stdio_ext.h>
28 #include <stdlib.h>
29 #include <ctype.h>
30 #include <sys/zfs_context.h>
31 #include <sys/spa.h>
32 #include <sys/spa_impl.h>
33 #include <sys/dmu.h>
34 #include <sys/zap.h>
35 #include <sys/fs/zfs.h>
36 #include <sys/zfs_znode.h>
37 #include <sys/vdev.h>
38 #include <sys/vdev_impl.h>
39 #include <sys/metaslab_impl.h>
40 #include <sys/dmu_objset.h>
41 #include <sys/dsl_dir.h>
42 #include <sys/dsl_dataset.h>
43 #include <sys/dsl_pool.h>
44 #include <sys/dbuf.h>
45 #include <sys/zil.h>
46 #include <sys/zil_impl.h>
47 #include <sys/stat.h>
48 #include <sys/resource.h>
49 #include <sys/dmu_traverse.h>
50 #include <sys/zio_checksum.h>
51 #include <sys/zio_compress.h>
52 #include <sys/zfs_fuid.h>
53 #include <sys/arc.h>
54 #undef ZFS_MAXNAMELEN
55 #undef verify
56 #include <libzfs.h>
57
58 const char cmdname[] = "zdb";
59 uint8_t dump_opt[256];
60
61 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
62
63 extern void dump_intent_log(zilog_t *);
64 uint64_t *zopt_object = NULL;
65 int zopt_objects = 0;
66 libzfs_handle_t *g_zfs;
67 boolean_t zdb_sig_user_data = B_TRUE;
68 int zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256;
69
70 /*
71 * These libumem hooks provide a reasonable set of defaults for the allocator's
72 * debugging facilities.
73 */
74 const char *
75 _umem_debug_init()
76 {
77 return ("default,verbose"); /* $UMEM_DEBUG setting */
78 }
79
80 const char *
81 _umem_logging_init(void)
82 {
83 return ("fail,contents"); /* $UMEM_LOGGING setting */
84 }
85
86 static void
87 usage(void)
88 {
89 (void) fprintf(stderr,
90 "Usage: %s [-udibcsvL] [-U cachefile_path] [-t txg]\n"
91 "\t [-S user:cksumalg] "
92 "dataset [object...]\n"
93 " %s -C [pool]\n"
94 " %s -l dev\n"
95 " %s -R pool:vdev:offset:size:flags\n"
96 " %s [-p path_to_vdev_dir]\n"
97 " %s -e pool | GUID | devid ...\n",
98 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
99
100 (void) fprintf(stderr, " -u uberblock\n");
101 (void) fprintf(stderr, " -d datasets\n");
102 (void) fprintf(stderr, " -C cached pool configuration\n");
103 (void) fprintf(stderr, " -i intent logs\n");
104 (void) fprintf(stderr, " -b block statistics\n");
105 (void) fprintf(stderr, " -c checksum all data blocks\n");
106 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
107 (void) fprintf(stderr, " -S <user|all>:<cksum_alg|all> -- "
108 "dump blkptr signatures\n");
109 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
110 (void) fprintf(stderr, " -l dump label contents\n");
111 (void) fprintf(stderr, " -L disable leak tracking (do not "
112 "load spacemaps)\n");
113 (void) fprintf(stderr, " -U cachefile_path -- use alternate "
114 "cachefile\n");
115 (void) fprintf(stderr, " -R read and display block from a "
116 "device\n");
117 (void) fprintf(stderr, " -e Pool is exported/destroyed/"
118 "has altroot\n");
119 (void) fprintf(stderr, " -p <Path to vdev dir> (use with -e)\n");
120 (void) fprintf(stderr, " -t <txg> highest txg to use when "
121 "searching for uberblocks\n");
122 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
123 "to make only that option verbose\n");
124 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
125 exit(1);
126 }
127
128 static void
129 fatal(const char *fmt, ...)
130 {
131 va_list ap;
132
133 va_start(ap, fmt);
134 (void) fprintf(stderr, "%s: ", cmdname);
135 (void) vfprintf(stderr, fmt, ap);
136 va_end(ap);
137 (void) fprintf(stderr, "\n");
138
139 abort();
140 }
141
142 static void
143 dump_nvlist(nvlist_t *list, int indent)
144 {
145 nvpair_t *elem = NULL;
146
147 while ((elem = nvlist_next_nvpair(list, elem)) != NULL) {
148 switch (nvpair_type(elem)) {
149 case DATA_TYPE_STRING:
150 {
151 char *value;
152
153 VERIFY(nvpair_value_string(elem, &value) == 0);
154 (void) printf("%*s%s='%s'\n", indent, "",
155 nvpair_name(elem), value);
156 }
157 break;
158
159 case DATA_TYPE_UINT64:
160 {
161 uint64_t value;
162
163 VERIFY(nvpair_value_uint64(elem, &value) == 0);
164 (void) printf("%*s%s=%llu\n", indent, "",
165 nvpair_name(elem), (u_longlong_t)value);
166 }
167 break;
168
169 case DATA_TYPE_NVLIST:
170 {
171 nvlist_t *value;
172
173 VERIFY(nvpair_value_nvlist(elem, &value) == 0);
174 (void) printf("%*s%s\n", indent, "",
175 nvpair_name(elem));
176 dump_nvlist(value, indent + 4);
177 }
178 break;
179
180 case DATA_TYPE_NVLIST_ARRAY:
181 {
182 nvlist_t **value;
183 uint_t c, count;
184
185 VERIFY(nvpair_value_nvlist_array(elem, &value,
186 &count) == 0);
187
188 for (c = 0; c < count; c++) {
189 (void) printf("%*s%s[%u]\n", indent, "",
190 nvpair_name(elem), c);
191 dump_nvlist(value[c], indent + 8);
192 }
193 }
194 break;
195
196 default:
197
198 (void) printf("bad config type %d for %s\n",
199 nvpair_type(elem), nvpair_name(elem));
200 }
201 }
202 }
203
204 /* ARGSUSED */
205 static void
206 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
207 {
208 nvlist_t *nv;
209 size_t nvsize = *(uint64_t *)data;
210 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
211
212 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed));
213
214 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
215
216 umem_free(packed, nvsize);
217
218 dump_nvlist(nv, 8);
219
220 nvlist_free(nv);
221 }
222
223 const char dump_zap_stars[] = "****************************************";
224 const int dump_zap_width = sizeof (dump_zap_stars) - 1;
225
226 static void
227 dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE])
228 {
229 int i;
230 int minidx = ZAP_HISTOGRAM_SIZE - 1;
231 int maxidx = 0;
232 uint64_t max = 0;
233
234 for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) {
235 if (histo[i] > max)
236 max = histo[i];
237 if (histo[i] > 0 && i > maxidx)
238 maxidx = i;
239 if (histo[i] > 0 && i < minidx)
240 minidx = i;
241 }
242
243 if (max < dump_zap_width)
244 max = dump_zap_width;
245
246 for (i = minidx; i <= maxidx; i++)
247 (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i],
248 &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]);
249 }
250
251 static void
252 dump_zap_stats(objset_t *os, uint64_t object)
253 {
254 int error;
255 zap_stats_t zs;
256
257 error = zap_get_stats(os, object, &zs);
258 if (error)
259 return;
260
261 if (zs.zs_ptrtbl_len == 0) {
262 ASSERT(zs.zs_num_blocks == 1);
263 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
264 (u_longlong_t)zs.zs_blocksize,
265 (u_longlong_t)zs.zs_num_entries);
266 return;
267 }
268
269 (void) printf("\tFat ZAP stats:\n");
270
271 (void) printf("\t\tPointer table:\n");
272 (void) printf("\t\t\t%llu elements\n",
273 (u_longlong_t)zs.zs_ptrtbl_len);
274 (void) printf("\t\t\tzt_blk: %llu\n",
275 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
276 (void) printf("\t\t\tzt_numblks: %llu\n",
277 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
278 (void) printf("\t\t\tzt_shift: %llu\n",
279 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
280 (void) printf("\t\t\tzt_blks_copied: %llu\n",
281 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
282 (void) printf("\t\t\tzt_nextblk: %llu\n",
283 (u_longlong_t)zs.zs_ptrtbl_nextblk);
284
285 (void) printf("\t\tZAP entries: %llu\n",
286 (u_longlong_t)zs.zs_num_entries);
287 (void) printf("\t\tLeaf blocks: %llu\n",
288 (u_longlong_t)zs.zs_num_leafs);
289 (void) printf("\t\tTotal blocks: %llu\n",
290 (u_longlong_t)zs.zs_num_blocks);
291 (void) printf("\t\tzap_block_type: 0x%llx\n",
292 (u_longlong_t)zs.zs_block_type);
293 (void) printf("\t\tzap_magic: 0x%llx\n",
294 (u_longlong_t)zs.zs_magic);
295 (void) printf("\t\tzap_salt: 0x%llx\n",
296 (u_longlong_t)zs.zs_salt);
297
298 (void) printf("\t\tLeafs with 2^n pointers:\n");
299 dump_zap_histogram(zs.zs_leafs_with_2n_pointers);
300
301 (void) printf("\t\tBlocks with n*5 entries:\n");
302 dump_zap_histogram(zs.zs_blocks_with_n5_entries);
303
304 (void) printf("\t\tBlocks n/10 full:\n");
305 dump_zap_histogram(zs.zs_blocks_n_tenths_full);
306
307 (void) printf("\t\tEntries with n chunks:\n");
308 dump_zap_histogram(zs.zs_entries_using_n_chunks);
309
310 (void) printf("\t\tBuckets with n entries:\n");
311 dump_zap_histogram(zs.zs_buckets_with_n_entries);
312 }
313
314 /*ARGSUSED*/
315 static void
316 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
317 {
318 }
319
320 /*ARGSUSED*/
321 void
322 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
323 {
324 }
325
326 /*ARGSUSED*/
327 static void
328 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
329 {
330 }
331
332 /*ARGSUSED*/
333 static void
334 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
335 {
336 zap_cursor_t zc;
337 zap_attribute_t attr;
338 void *prop;
339 int i;
340
341 dump_zap_stats(os, object);
342 (void) printf("\n");
343
344 for (zap_cursor_init(&zc, os, object);
345 zap_cursor_retrieve(&zc, &attr) == 0;
346 zap_cursor_advance(&zc)) {
347 (void) printf("\t\t%s = ", attr.za_name);
348 if (attr.za_num_integers == 0) {
349 (void) printf("\n");
350 continue;
351 }
352 prop = umem_zalloc(attr.za_num_integers *
353 attr.za_integer_length, UMEM_NOFAIL);
354 (void) zap_lookup(os, object, attr.za_name,
355 attr.za_integer_length, attr.za_num_integers, prop);
356 if (attr.za_integer_length == 1) {
357 (void) printf("%s", (char *)prop);
358 } else {
359 for (i = 0; i < attr.za_num_integers; i++) {
360 switch (attr.za_integer_length) {
361 case 2:
362 (void) printf("%u ",
363 ((uint16_t *)prop)[i]);
364 break;
365 case 4:
366 (void) printf("%u ",
367 ((uint32_t *)prop)[i]);
368 break;
369 case 8:
370 (void) printf("%lld ",
371 (u_longlong_t)((int64_t *)prop)[i]);
372 break;
373 }
374 }
375 }
376 (void) printf("\n");
377 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
378 }
379 zap_cursor_fini(&zc);
380 }
381
382 /*ARGSUSED*/
383 static void
384 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
385 {
386 zap_cursor_t zc;
387 zap_attribute_t attr;
388 const char *typenames[] = {
389 /* 0 */ "not specified",
390 /* 1 */ "FIFO",
391 /* 2 */ "Character Device",
392 /* 3 */ "3 (invalid)",
393 /* 4 */ "Directory",
394 /* 5 */ "5 (invalid)",
395 /* 6 */ "Block Device",
396 /* 7 */ "7 (invalid)",
397 /* 8 */ "Regular File",
398 /* 9 */ "9 (invalid)",
399 /* 10 */ "Symbolic Link",
400 /* 11 */ "11 (invalid)",
401 /* 12 */ "Socket",
402 /* 13 */ "Door",
403 /* 14 */ "Event Port",
404 /* 15 */ "15 (invalid)",
405 };
406
407 dump_zap_stats(os, object);
408 (void) printf("\n");
409
410 for (zap_cursor_init(&zc, os, object);
411 zap_cursor_retrieve(&zc, &attr) == 0;
412 zap_cursor_advance(&zc)) {
413 (void) printf("\t\t%s = %lld (type: %s)\n",
414 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
415 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
416 }
417 zap_cursor_fini(&zc);
418 }
419
420 static void
421 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm)
422 {
423 uint64_t alloc, offset, entry;
424 uint8_t mapshift = sm->sm_shift;
425 uint64_t mapstart = sm->sm_start;
426 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
427 "INVALID", "INVALID", "INVALID", "INVALID" };
428
429 if (smo->smo_object == 0)
430 return;
431
432 /*
433 * Print out the freelist entries in both encoded and decoded form.
434 */
435 alloc = 0;
436 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) {
437 VERIFY(0 == dmu_read(os, smo->smo_object, offset,
438 sizeof (entry), &entry));
439 if (SM_DEBUG_DECODE(entry)) {
440 (void) printf("\t\t[%4llu] %s: txg %llu, pass %llu\n",
441 (u_longlong_t)(offset / sizeof (entry)),
442 ddata[SM_DEBUG_ACTION_DECODE(entry)],
443 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
444 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
445 } else {
446 (void) printf("\t\t[%4llu] %c range:"
447 " %08llx-%08llx size: %06llx\n",
448 (u_longlong_t)(offset / sizeof (entry)),
449 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
450 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
451 mapshift) + mapstart),
452 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
453 mapshift) + mapstart + (SM_RUN_DECODE(entry) <<
454 mapshift)),
455 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
456 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
457 alloc += SM_RUN_DECODE(entry) << mapshift;
458 else
459 alloc -= SM_RUN_DECODE(entry) << mapshift;
460 }
461 }
462 if (alloc != smo->smo_alloc) {
463 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
464 "with space map summary (%llu)\n",
465 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc);
466 }
467 }
468
469 static void
470 dump_metaslab(metaslab_t *msp)
471 {
472 char freebuf[5];
473 space_map_obj_t *smo = &msp->ms_smo;
474 vdev_t *vd = msp->ms_group->mg_vd;
475 spa_t *spa = vd->vdev_spa;
476
477 nicenum(msp->ms_map.sm_size - smo->smo_alloc, freebuf);
478
479 if (dump_opt['d'] <= 5) {
480 (void) printf("\t%10llx %10llu %5s\n",
481 (u_longlong_t)msp->ms_map.sm_start,
482 (u_longlong_t)smo->smo_object,
483 freebuf);
484 return;
485 }
486
487 (void) printf(
488 "\tvdev %llu offset %08llx spacemap %4llu free %5s\n",
489 (u_longlong_t)vd->vdev_id, (u_longlong_t)msp->ms_map.sm_start,
490 (u_longlong_t)smo->smo_object, freebuf);
491
492 ASSERT(msp->ms_map.sm_size == (1ULL << vd->vdev_ms_shift));
493
494 dump_spacemap(spa->spa_meta_objset, smo, &msp->ms_map);
495 }
496
497 static void
498 dump_metaslabs(spa_t *spa)
499 {
500 vdev_t *rvd = spa->spa_root_vdev;
501 vdev_t *vd;
502 int c, m;
503
504 (void) printf("\nMetaslabs:\n");
505
506 for (c = 0; c < rvd->vdev_children; c++) {
507 vd = rvd->vdev_child[c];
508
509 (void) printf("\n vdev %llu\n\n", (u_longlong_t)vd->vdev_id);
510
511 if (dump_opt['d'] <= 5) {
512 (void) printf("\t%10s %10s %5s\n",
513 "offset", "spacemap", "free");
514 (void) printf("\t%10s %10s %5s\n",
515 "------", "--------", "----");
516 }
517 for (m = 0; m < vd->vdev_ms_count; m++)
518 dump_metaslab(vd->vdev_ms[m]);
519 (void) printf("\n");
520 }
521 }
522
523 static void
524 dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size)
525 {
526 char *prefix = (void *)sm;
527
528 (void) printf("%s [%llu,%llu) length %llu\n",
529 prefix,
530 (u_longlong_t)start,
531 (u_longlong_t)(start + size),
532 (u_longlong_t)(size));
533 }
534
535 static void
536 dump_dtl(vdev_t *vd, int indent)
537 {
538 spa_t *spa = vd->vdev_spa;
539 boolean_t required;
540 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
541 char prefix[256];
542
543 spa_vdev_state_enter(spa);
544 required = vdev_dtl_required(vd);
545 (void) spa_vdev_state_exit(spa, NULL, 0);
546
547 if (indent == 0)
548 (void) printf("\nDirty time logs:\n\n");
549
550 (void) printf("\t%*s%s [%s]\n", indent, "",
551 vd->vdev_path ? vd->vdev_path :
552 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
553 required ? "DTL-required" : "DTL-expendable");
554
555 for (int t = 0; t < DTL_TYPES; t++) {
556 space_map_t *sm = &vd->vdev_dtl[t];
557 if (sm->sm_space == 0)
558 continue;
559 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
560 indent + 2, "", name[t]);
561 mutex_enter(sm->sm_lock);
562 space_map_walk(sm, dump_dtl_seg, (void *)prefix);
563 mutex_exit(sm->sm_lock);
564 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
565 dump_spacemap(spa->spa_meta_objset,
566 &vd->vdev_dtl_smo, sm);
567 }
568
569 for (int c = 0; c < vd->vdev_children; c++)
570 dump_dtl(vd->vdev_child[c], indent + 4);
571 }
572
573 /*ARGSUSED*/
574 static void
575 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
576 {
577 }
578
579 static uint64_t
580 blkid2offset(const dnode_phys_t *dnp, int level, uint64_t blkid)
581 {
582 if (level < 0)
583 return (blkid);
584
585 return ((blkid << (level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
586 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
587 }
588
589 static void
590 sprintf_blkptr_compact(char *blkbuf, blkptr_t *bp, int alldvas)
591 {
592 dva_t *dva = bp->blk_dva;
593 int ndvas = alldvas ? BP_GET_NDVAS(bp) : 1;
594 int i;
595
596 blkbuf[0] = '\0';
597
598 for (i = 0; i < ndvas; i++)
599 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ",
600 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
601 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
602 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
603
604 (void) sprintf(blkbuf + strlen(blkbuf), "%llxL/%llxP F=%llu B=%llu",
605 (u_longlong_t)BP_GET_LSIZE(bp),
606 (u_longlong_t)BP_GET_PSIZE(bp),
607 (u_longlong_t)bp->blk_fill,
608 (u_longlong_t)bp->blk_birth);
609 }
610
611 static void
612 print_indirect(blkptr_t *bp, const zbookmark_t *zb,
613 const dnode_phys_t *dnp)
614 {
615 char blkbuf[BP_SPRINTF_LEN];
616 int l;
617
618 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
619 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
620
621 (void) printf("%16llx ",
622 (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid));
623
624 ASSERT(zb->zb_level >= 0);
625
626 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
627 if (l == zb->zb_level) {
628 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
629 } else {
630 (void) printf(" ");
631 }
632 }
633
634 sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0);
635 (void) printf("%s\n", blkbuf);
636 }
637
638 #define SET_BOOKMARK(zb, objset, object, level, blkid) \
639 { \
640 (zb)->zb_objset = objset; \
641 (zb)->zb_object = object; \
642 (zb)->zb_level = level; \
643 (zb)->zb_blkid = blkid; \
644 }
645
646 static int
647 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
648 blkptr_t *bp, const zbookmark_t *zb)
649 {
650 int err;
651
652 if (bp->blk_birth == 0)
653 return (0);
654
655 print_indirect(bp, zb, dnp);
656
657 if (BP_GET_LEVEL(bp) > 0) {
658 uint32_t flags = ARC_WAIT;
659 int i;
660 blkptr_t *cbp;
661 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
662 arc_buf_t *buf;
663 uint64_t fill = 0;
664
665 err = arc_read_nolock(NULL, spa, bp, arc_getbuf_func, &buf,
666 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
667 if (err)
668 return (err);
669
670 /* recursively visit blocks below this */
671 cbp = buf->b_data;
672 for (i = 0; i < epb; i++, cbp++) {
673 zbookmark_t czb;
674
675 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
676 zb->zb_level - 1,
677 zb->zb_blkid * epb + i);
678 err = visit_indirect(spa, dnp, cbp, &czb);
679 if (err)
680 break;
681 fill += cbp->blk_fill;
682 }
683 if (!err)
684 ASSERT3U(fill, ==, bp->blk_fill);
685 (void) arc_buf_remove_ref(buf, &buf);
686 }
687
688 return (err);
689 }
690
691 /*ARGSUSED*/
692 static void
693 dump_indirect(dnode_t *dn)
694 {
695 dnode_phys_t *dnp = dn->dn_phys;
696 int j;
697 zbookmark_t czb;
698
699 (void) printf("Indirect blocks:\n");
700
701 SET_BOOKMARK(&czb, dmu_objset_id(&dn->dn_objset->os),
702 dn->dn_object, dnp->dn_nlevels - 1, 0);
703 for (j = 0; j < dnp->dn_nblkptr; j++) {
704 czb.zb_blkid = j;
705 (void) visit_indirect(dmu_objset_spa(&dn->dn_objset->os), dnp,
706 &dnp->dn_blkptr[j], &czb);
707 }
708
709 (void) printf("\n");
710 }
711
712 /*ARGSUSED*/
713 static void
714 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
715 {
716 dsl_dir_phys_t *dd = data;
717 time_t crtime;
718 char nice[6];
719
720 if (dd == NULL)
721 return;
722
723 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
724
725 crtime = dd->dd_creation_time;
726 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
727 (void) printf("\t\thead_dataset_obj = %llu\n",
728 (u_longlong_t)dd->dd_head_dataset_obj);
729 (void) printf("\t\tparent_dir_obj = %llu\n",
730 (u_longlong_t)dd->dd_parent_obj);
731 (void) printf("\t\torigin_obj = %llu\n",
732 (u_longlong_t)dd->dd_origin_obj);
733 (void) printf("\t\tchild_dir_zapobj = %llu\n",
734 (u_longlong_t)dd->dd_child_dir_zapobj);
735 nicenum(dd->dd_used_bytes, nice);
736 (void) printf("\t\tused_bytes = %s\n", nice);
737 nicenum(dd->dd_compressed_bytes, nice);
738 (void) printf("\t\tcompressed_bytes = %s\n", nice);
739 nicenum(dd->dd_uncompressed_bytes, nice);
740 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
741 nicenum(dd->dd_quota, nice);
742 (void) printf("\t\tquota = %s\n", nice);
743 nicenum(dd->dd_reserved, nice);
744 (void) printf("\t\treserved = %s\n", nice);
745 (void) printf("\t\tprops_zapobj = %llu\n",
746 (u_longlong_t)dd->dd_props_zapobj);
747 (void) printf("\t\tdeleg_zapobj = %llu\n",
748 (u_longlong_t)dd->dd_deleg_zapobj);
749 (void) printf("\t\tflags = %llx\n",
750 (u_longlong_t)dd->dd_flags);
751
752 #define DO(which) \
753 nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
754 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
755 DO(HEAD);
756 DO(SNAP);
757 DO(CHILD);
758 DO(CHILD_RSRV);
759 DO(REFRSRV);
760 #undef DO
761 }
762
763 /*ARGSUSED*/
764 static void
765 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
766 {
767 dsl_dataset_phys_t *ds = data;
768 time_t crtime;
769 char used[6], compressed[6], uncompressed[6], unique[6];
770 char blkbuf[BP_SPRINTF_LEN];
771
772 if (ds == NULL)
773 return;
774
775 ASSERT(size == sizeof (*ds));
776 crtime = ds->ds_creation_time;
777 nicenum(ds->ds_used_bytes, used);
778 nicenum(ds->ds_compressed_bytes, compressed);
779 nicenum(ds->ds_uncompressed_bytes, uncompressed);
780 nicenum(ds->ds_unique_bytes, unique);
781 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ds->ds_bp);
782
783 (void) printf("\t\tdir_obj = %llu\n",
784 (u_longlong_t)ds->ds_dir_obj);
785 (void) printf("\t\tprev_snap_obj = %llu\n",
786 (u_longlong_t)ds->ds_prev_snap_obj);
787 (void) printf("\t\tprev_snap_txg = %llu\n",
788 (u_longlong_t)ds->ds_prev_snap_txg);
789 (void) printf("\t\tnext_snap_obj = %llu\n",
790 (u_longlong_t)ds->ds_next_snap_obj);
791 (void) printf("\t\tsnapnames_zapobj = %llu\n",
792 (u_longlong_t)ds->ds_snapnames_zapobj);
793 (void) printf("\t\tnum_children = %llu\n",
794 (u_longlong_t)ds->ds_num_children);
795 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
796 (void) printf("\t\tcreation_txg = %llu\n",
797 (u_longlong_t)ds->ds_creation_txg);
798 (void) printf("\t\tdeadlist_obj = %llu\n",
799 (u_longlong_t)ds->ds_deadlist_obj);
800 (void) printf("\t\tused_bytes = %s\n", used);
801 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
802 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
803 (void) printf("\t\tunique = %s\n", unique);
804 (void) printf("\t\tfsid_guid = %llu\n",
805 (u_longlong_t)ds->ds_fsid_guid);
806 (void) printf("\t\tguid = %llu\n",
807 (u_longlong_t)ds->ds_guid);
808 (void) printf("\t\tflags = %llx\n",
809 (u_longlong_t)ds->ds_flags);
810 (void) printf("\t\tnext_clones_obj = %llu\n",
811 (u_longlong_t)ds->ds_next_clones_obj);
812 (void) printf("\t\tprops_obj = %llu\n",
813 (u_longlong_t)ds->ds_props_obj);
814 (void) printf("\t\tbp = %s\n", blkbuf);
815 }
816
817 static void
818 dump_bplist(objset_t *mos, uint64_t object, char *name)
819 {
820 bplist_t bpl = { 0 };
821 blkptr_t blk, *bp = &blk;
822 uint64_t itor = 0;
823 char bytes[6];
824 char comp[6];
825 char uncomp[6];
826
827 if (dump_opt['d'] < 3)
828 return;
829
830 mutex_init(&bpl.bpl_lock, NULL, MUTEX_DEFAULT, NULL);
831 VERIFY(0 == bplist_open(&bpl, mos, object));
832 if (bplist_empty(&bpl)) {
833 bplist_close(&bpl);
834 mutex_destroy(&bpl.bpl_lock);
835 return;
836 }
837
838 nicenum(bpl.bpl_phys->bpl_bytes, bytes);
839 if (bpl.bpl_dbuf->db_size == sizeof (bplist_phys_t)) {
840 nicenum(bpl.bpl_phys->bpl_comp, comp);
841 nicenum(bpl.bpl_phys->bpl_uncomp, uncomp);
842 (void) printf("\n %s: %llu entries, %s (%s/%s comp)\n",
843 name, (u_longlong_t)bpl.bpl_phys->bpl_entries,
844 bytes, comp, uncomp);
845 } else {
846 (void) printf("\n %s: %llu entries, %s\n",
847 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, bytes);
848 }
849
850 if (dump_opt['d'] < 5) {
851 bplist_close(&bpl);
852 mutex_destroy(&bpl.bpl_lock);
853 return;
854 }
855
856 (void) printf("\n");
857
858 while (bplist_iterate(&bpl, &itor, bp) == 0) {
859 char blkbuf[BP_SPRINTF_LEN];
860
861 ASSERT(bp->blk_birth != 0);
862 sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0);
863 (void) printf("\tItem %3llu: %s\n",
864 (u_longlong_t)itor - 1, blkbuf);
865 }
866
867 bplist_close(&bpl);
868 mutex_destroy(&bpl.bpl_lock);
869 }
870
871 static avl_tree_t idx_tree;
872 static avl_tree_t domain_tree;
873 static boolean_t fuid_table_loaded;
874
875 static void
876 fuid_table_destroy()
877 {
878 if (fuid_table_loaded) {
879 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
880 fuid_table_loaded = B_FALSE;
881 }
882 }
883
884 /*
885 * print uid or gid information.
886 * For normal POSIX id just the id is printed in decimal format.
887 * For CIFS files with FUID the fuid is printed in hex followed by
888 * the doman-rid string.
889 */
890 static void
891 print_idstr(uint64_t id, const char *id_type)
892 {
893 if (FUID_INDEX(id)) {
894 char *domain;
895
896 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
897 (void) printf("\t%s %llx [%s-%d]\n", id_type,
898 (u_longlong_t)id, domain, (int)FUID_RID(id));
899 } else {
900 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
901 }
902
903 }
904
905 static void
906 dump_uidgid(objset_t *os, znode_phys_t *zp)
907 {
908 uint32_t uid_idx, gid_idx;
909
910 uid_idx = FUID_INDEX(zp->zp_uid);
911 gid_idx = FUID_INDEX(zp->zp_gid);
912
913 /* Load domain table, if not already loaded */
914 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
915 uint64_t fuid_obj;
916
917 /* first find the fuid object. It lives in the master node */
918 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
919 8, 1, &fuid_obj) == 0);
920 (void) zfs_fuid_table_load(os, fuid_obj,
921 &idx_tree, &domain_tree);
922 fuid_table_loaded = B_TRUE;
923 }
924
925 print_idstr(zp->zp_uid, "uid");
926 print_idstr(zp->zp_gid, "gid");
927 }
928
929 /*ARGSUSED*/
930 static void
931 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
932 {
933 znode_phys_t *zp = data;
934 time_t z_crtime, z_atime, z_mtime, z_ctime;
935 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
936 int error;
937
938 ASSERT(size >= sizeof (znode_phys_t));
939
940 error = zfs_obj_to_path(os, object, path, sizeof (path));
941 if (error != 0) {
942 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
943 (u_longlong_t)object);
944 }
945
946 if (dump_opt['d'] < 3) {
947 (void) printf("\t%s\n", path);
948 return;
949 }
950
951 z_crtime = (time_t)zp->zp_crtime[0];
952 z_atime = (time_t)zp->zp_atime[0];
953 z_mtime = (time_t)zp->zp_mtime[0];
954 z_ctime = (time_t)zp->zp_ctime[0];
955
956 (void) printf("\tpath %s\n", path);
957 dump_uidgid(os, zp);
958 (void) printf("\tatime %s", ctime(&z_atime));
959 (void) printf("\tmtime %s", ctime(&z_mtime));
960 (void) printf("\tctime %s", ctime(&z_ctime));
961 (void) printf("\tcrtime %s", ctime(&z_crtime));
962 (void) printf("\tgen %llu\n", (u_longlong_t)zp->zp_gen);
963 (void) printf("\tmode %llo\n", (u_longlong_t)zp->zp_mode);
964 (void) printf("\tsize %llu\n", (u_longlong_t)zp->zp_size);
965 (void) printf("\tparent %llu\n", (u_longlong_t)zp->zp_parent);
966 (void) printf("\tlinks %llu\n", (u_longlong_t)zp->zp_links);
967 (void) printf("\txattr %llu\n", (u_longlong_t)zp->zp_xattr);
968 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)zp->zp_rdev);
969 }
970
971 /*ARGSUSED*/
972 static void
973 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
974 {
975 }
976
977 /*ARGSUSED*/
978 static void
979 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
980 {
981 }
982
983 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES] = {
984 dump_none, /* unallocated */
985 dump_zap, /* object directory */
986 dump_uint64, /* object array */
987 dump_none, /* packed nvlist */
988 dump_packed_nvlist, /* packed nvlist size */
989 dump_none, /* bplist */
990 dump_none, /* bplist header */
991 dump_none, /* SPA space map header */
992 dump_none, /* SPA space map */
993 dump_none, /* ZIL intent log */
994 dump_dnode, /* DMU dnode */
995 dump_dmu_objset, /* DMU objset */
996 dump_dsl_dir, /* DSL directory */
997 dump_zap, /* DSL directory child map */
998 dump_zap, /* DSL dataset snap map */
999 dump_zap, /* DSL props */
1000 dump_dsl_dataset, /* DSL dataset */
1001 dump_znode, /* ZFS znode */
1002 dump_acl, /* ZFS V0 ACL */
1003 dump_uint8, /* ZFS plain file */
1004 dump_zpldir, /* ZFS directory */
1005 dump_zap, /* ZFS master node */
1006 dump_zap, /* ZFS delete queue */
1007 dump_uint8, /* zvol object */
1008 dump_zap, /* zvol prop */
1009 dump_uint8, /* other uint8[] */
1010 dump_uint64, /* other uint64[] */
1011 dump_zap, /* other ZAP */
1012 dump_zap, /* persistent error log */
1013 dump_uint8, /* SPA history */
1014 dump_uint64, /* SPA history offsets */
1015 dump_zap, /* Pool properties */
1016 dump_zap, /* DSL permissions */
1017 dump_acl, /* ZFS ACL */
1018 dump_uint8, /* ZFS SYSACL */
1019 dump_none, /* FUID nvlist */
1020 dump_packed_nvlist, /* FUID nvlist size */
1021 dump_zap, /* DSL dataset next clones */
1022 dump_zap, /* DSL scrub queue */
1023 };
1024
1025 static void
1026 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1027 {
1028 dmu_buf_t *db = NULL;
1029 dmu_object_info_t doi;
1030 dnode_t *dn;
1031 void *bonus = NULL;
1032 size_t bsize = 0;
1033 char iblk[6], dblk[6], lsize[6], asize[6], bonus_size[6], segsize[6];
1034 char aux[50];
1035 int error;
1036
1037 if (*print_header) {
1038 (void) printf("\n Object lvl iblk dblk lsize"
1039 " asize type\n");
1040 *print_header = 0;
1041 }
1042
1043 if (object == 0) {
1044 dn = os->os->os_meta_dnode;
1045 } else {
1046 error = dmu_bonus_hold(os, object, FTAG, &db);
1047 if (error)
1048 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1049 object, error);
1050 bonus = db->db_data;
1051 bsize = db->db_size;
1052 dn = ((dmu_buf_impl_t *)db)->db_dnode;
1053 }
1054 dmu_object_info_from_dnode(dn, &doi);
1055
1056 nicenum(doi.doi_metadata_block_size, iblk);
1057 nicenum(doi.doi_data_block_size, dblk);
1058 nicenum(doi.doi_data_block_size * (doi.doi_max_block_offset + 1),
1059 lsize);
1060 nicenum(doi.doi_physical_blks << 9, asize);
1061 nicenum(doi.doi_bonus_size, bonus_size);
1062
1063 aux[0] = '\0';
1064
1065 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1066 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1067 zio_checksum_table[doi.doi_checksum].ci_name);
1068 }
1069
1070 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1071 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1072 zio_compress_table[doi.doi_compress].ci_name);
1073 }
1074
1075 (void) printf("%10lld %3u %5s %5s %5s %5s %s%s\n",
1076 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, lsize,
1077 asize, dmu_ot[doi.doi_type].ot_name, aux);
1078
1079 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1080 (void) printf("%10s %3s %5s %5s %5s %5s %s\n",
1081 "", "", "", "", bonus_size, "bonus",
1082 dmu_ot[doi.doi_bonus_type].ot_name);
1083 }
1084
1085 if (verbosity >= 4) {
1086 object_viewer[doi.doi_bonus_type](os, object, bonus, bsize);
1087 object_viewer[doi.doi_type](os, object, NULL, 0);
1088 *print_header = 1;
1089 }
1090
1091 if (verbosity >= 5)
1092 dump_indirect(dn);
1093
1094 if (verbosity >= 5) {
1095 /*
1096 * Report the list of segments that comprise the object.
1097 */
1098 uint64_t start = 0;
1099 uint64_t end;
1100 uint64_t blkfill = 1;
1101 int minlvl = 1;
1102
1103 if (dn->dn_type == DMU_OT_DNODE) {
1104 minlvl = 0;
1105 blkfill = DNODES_PER_BLOCK;
1106 }
1107
1108 for (;;) {
1109 error = dnode_next_offset(dn,
1110 0, &start, minlvl, blkfill, 0);
1111 if (error)
1112 break;
1113 end = start;
1114 error = dnode_next_offset(dn,
1115 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1116 nicenum(end - start, segsize);
1117 (void) printf("\t\tsegment [%016llx, %016llx)"
1118 " size %5s\n", (u_longlong_t)start,
1119 (u_longlong_t)end, segsize);
1120 if (error)
1121 break;
1122 start = end;
1123 }
1124 }
1125
1126 if (db != NULL)
1127 dmu_buf_rele(db, FTAG);
1128 }
1129
1130 static char *objset_types[DMU_OST_NUMTYPES] = {
1131 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1132
1133 static void
1134 dump_dir(objset_t *os)
1135 {
1136 dmu_objset_stats_t dds;
1137 uint64_t object, object_count;
1138 uint64_t refdbytes, usedobjs, scratch;
1139 char numbuf[8];
1140 char blkbuf[BP_SPRINTF_LEN];
1141 char osname[MAXNAMELEN];
1142 char *type = "UNKNOWN";
1143 int verbosity = dump_opt['d'];
1144 int print_header = 1;
1145 int i, error;
1146
1147 dmu_objset_fast_stat(os, &dds);
1148
1149 if (dds.dds_type < DMU_OST_NUMTYPES)
1150 type = objset_types[dds.dds_type];
1151
1152 if (dds.dds_type == DMU_OST_META) {
1153 dds.dds_creation_txg = TXG_INITIAL;
1154 usedobjs = os->os->os_rootbp->blk_fill;
1155 refdbytes = os->os->os_spa->spa_dsl_pool->
1156 dp_mos_dir->dd_phys->dd_used_bytes;
1157 } else {
1158 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1159 }
1160
1161 ASSERT3U(usedobjs, ==, os->os->os_rootbp->blk_fill);
1162
1163 nicenum(refdbytes, numbuf);
1164
1165 if (verbosity >= 4) {
1166 (void) strcpy(blkbuf, ", rootbp ");
1167 sprintf_blkptr(blkbuf + strlen(blkbuf),
1168 BP_SPRINTF_LEN - strlen(blkbuf), os->os->os_rootbp);
1169 } else {
1170 blkbuf[0] = '\0';
1171 }
1172
1173 dmu_objset_name(os, osname);
1174
1175 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1176 "%s, %llu objects%s\n",
1177 osname, type, (u_longlong_t)dmu_objset_id(os),
1178 (u_longlong_t)dds.dds_creation_txg,
1179 numbuf, (u_longlong_t)usedobjs, blkbuf);
1180
1181 dump_intent_log(dmu_objset_zil(os));
1182
1183 if (dmu_objset_ds(os) != NULL)
1184 dump_bplist(dmu_objset_pool(os)->dp_meta_objset,
1185 dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist");
1186
1187 if (verbosity < 2)
1188 return;
1189
1190 if (os->os->os_rootbp->blk_birth == 0)
1191 return;
1192
1193 if (zopt_objects != 0) {
1194 for (i = 0; i < zopt_objects; i++)
1195 dump_object(os, zopt_object[i], verbosity,
1196 &print_header);
1197 (void) printf("\n");
1198 return;
1199 }
1200
1201 dump_object(os, 0, verbosity, &print_header);
1202 object_count = 1;
1203
1204 object = 0;
1205 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1206 dump_object(os, object, verbosity, &print_header);
1207 object_count++;
1208 }
1209
1210 ASSERT3U(object_count, ==, usedobjs);
1211
1212 (void) printf("\n");
1213
1214 if (error != ESRCH)
1215 fatal("dmu_object_next() = %d", error);
1216 }
1217
1218 static void
1219 dump_uberblock(uberblock_t *ub)
1220 {
1221 time_t timestamp = ub->ub_timestamp;
1222
1223 (void) printf("Uberblock\n\n");
1224 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1225 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1226 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1227 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1228 (void) printf("\ttimestamp = %llu UTC = %s",
1229 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
1230 if (dump_opt['u'] >= 3) {
1231 char blkbuf[BP_SPRINTF_LEN];
1232 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ub->ub_rootbp);
1233 (void) printf("\trootbp = %s\n", blkbuf);
1234 }
1235 (void) printf("\n");
1236 }
1237
1238 static void
1239 dump_config(const char *pool)
1240 {
1241 spa_t *spa = NULL;
1242
1243 mutex_enter(&spa_namespace_lock);
1244 while ((spa = spa_next(spa)) != NULL) {
1245 if (pool == NULL)
1246 (void) printf("%s\n", spa_name(spa));
1247 if (pool == NULL || strcmp(pool, spa_name(spa)) == 0)
1248 dump_nvlist(spa->spa_config, 4);
1249 }
1250 mutex_exit(&spa_namespace_lock);
1251 }
1252
1253 static void
1254 dump_cachefile(const char *cachefile)
1255 {
1256 int fd;
1257 struct stat64 statbuf;
1258 char *buf;
1259 nvlist_t *config;
1260
1261 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1262 (void) printf("cannot open '%s': %s\n", cachefile,
1263 strerror(errno));
1264 exit(1);
1265 }
1266
1267 if (fstat64(fd, &statbuf) != 0) {
1268 (void) printf("failed to stat '%s': %s\n", cachefile,
1269 strerror(errno));
1270 exit(1);
1271 }
1272
1273 if ((buf = malloc(statbuf.st_size)) == NULL) {
1274 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
1275 (u_longlong_t)statbuf.st_size);
1276 exit(1);
1277 }
1278
1279 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1280 (void) fprintf(stderr, "failed to read %llu bytes\n",
1281 (u_longlong_t)statbuf.st_size);
1282 exit(1);
1283 }
1284
1285 (void) close(fd);
1286
1287 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
1288 (void) fprintf(stderr, "failed to unpack nvlist\n");
1289 exit(1);
1290 }
1291
1292 free(buf);
1293
1294 dump_nvlist(config, 0);
1295
1296 nvlist_free(config);
1297 }
1298
1299 static void
1300 dump_label(const char *dev)
1301 {
1302 int fd;
1303 vdev_label_t label;
1304 char *buf = label.vl_vdev_phys.vp_nvlist;
1305 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
1306 struct stat64 statbuf;
1307 uint64_t psize;
1308 int l;
1309
1310 if ((fd = open64(dev, O_RDONLY)) < 0) {
1311 (void) printf("cannot open '%s': %s\n", dev, strerror(errno));
1312 exit(1);
1313 }
1314
1315 if (fstat64(fd, &statbuf) != 0) {
1316 (void) printf("failed to stat '%s': %s\n", dev,
1317 strerror(errno));
1318 exit(1);
1319 }
1320
1321 psize = statbuf.st_size;
1322 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
1323
1324 for (l = 0; l < VDEV_LABELS; l++) {
1325
1326 nvlist_t *config = NULL;
1327
1328 (void) printf("--------------------------------------------\n");
1329 (void) printf("LABEL %d\n", l);
1330 (void) printf("--------------------------------------------\n");
1331
1332 if (pread64(fd, &label, sizeof (label),
1333 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
1334 (void) printf("failed to read label %d\n", l);
1335 continue;
1336 }
1337
1338 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
1339 (void) printf("failed to unpack label %d\n", l);
1340 continue;
1341 }
1342 dump_nvlist(config, 4);
1343 nvlist_free(config);
1344 }
1345 }
1346
1347 /*ARGSUSED*/
1348 static int
1349 dump_one_dir(char *dsname, void *arg)
1350 {
1351 int error;
1352 objset_t *os;
1353
1354 error = dmu_objset_open(dsname, DMU_OST_ANY,
1355 DS_MODE_USER | DS_MODE_READONLY, &os);
1356 if (error) {
1357 (void) printf("Could not open %s\n", dsname);
1358 return (0);
1359 }
1360 dump_dir(os);
1361 dmu_objset_close(os);
1362 fuid_table_destroy();
1363 return (0);
1364 }
1365
1366 static void
1367 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size)
1368 {
1369 vdev_t *vd = sm->sm_ppd;
1370
1371 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
1372 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
1373 }
1374
1375 /* ARGSUSED */
1376 static void
1377 zdb_space_map_load(space_map_t *sm)
1378 {
1379 }
1380
1381 static void
1382 zdb_space_map_unload(space_map_t *sm)
1383 {
1384 space_map_vacate(sm, zdb_leak, sm);
1385 }
1386
1387 /* ARGSUSED */
1388 static void
1389 zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size)
1390 {
1391 }
1392
1393 static space_map_ops_t zdb_space_map_ops = {
1394 zdb_space_map_load,
1395 zdb_space_map_unload,
1396 NULL, /* alloc */
1397 zdb_space_map_claim,
1398 NULL /* free */
1399 };
1400
1401 static void
1402 zdb_leak_init(spa_t *spa)
1403 {
1404 vdev_t *rvd = spa->spa_root_vdev;
1405
1406 for (int c = 0; c < rvd->vdev_children; c++) {
1407 vdev_t *vd = rvd->vdev_child[c];
1408 for (int m = 0; m < vd->vdev_ms_count; m++) {
1409 metaslab_t *msp = vd->vdev_ms[m];
1410 mutex_enter(&msp->ms_lock);
1411 VERIFY(space_map_load(&msp->ms_map, &zdb_space_map_ops,
1412 SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset) == 0);
1413 msp->ms_map.sm_ppd = vd;
1414 mutex_exit(&msp->ms_lock);
1415 }
1416 }
1417 }
1418
1419 static void
1420 zdb_leak_fini(spa_t *spa)
1421 {
1422 vdev_t *rvd = spa->spa_root_vdev;
1423
1424 for (int c = 0; c < rvd->vdev_children; c++) {
1425 vdev_t *vd = rvd->vdev_child[c];
1426 for (int m = 0; m < vd->vdev_ms_count; m++) {
1427 metaslab_t *msp = vd->vdev_ms[m];
1428 mutex_enter(&msp->ms_lock);
1429 space_map_unload(&msp->ms_map);
1430 mutex_exit(&msp->ms_lock);
1431 }
1432 }
1433 }
1434
1435 /*
1436 * Verify that the sum of the sizes of all blocks in the pool adds up
1437 * to the SPA's sa_alloc total.
1438 */
1439 typedef struct zdb_blkstats {
1440 uint64_t zb_asize;
1441 uint64_t zb_lsize;
1442 uint64_t zb_psize;
1443 uint64_t zb_count;
1444 } zdb_blkstats_t;
1445
1446 #define DMU_OT_DEFERRED DMU_OT_NONE
1447 #define DMU_OT_TOTAL DMU_OT_NUMTYPES
1448
1449 #define ZB_TOTAL DN_MAX_LEVELS
1450
1451 typedef struct zdb_cb {
1452 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1];
1453 uint64_t zcb_errors[256];
1454 int zcb_readfails;
1455 int zcb_haderrors;
1456 } zdb_cb_t;
1457
1458 static void
1459 zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, dmu_object_type_t type)
1460 {
1461 for (int i = 0; i < 4; i++) {
1462 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
1463 int t = (i & 1) ? type : DMU_OT_TOTAL;
1464 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
1465
1466 zb->zb_asize += BP_GET_ASIZE(bp);
1467 zb->zb_lsize += BP_GET_LSIZE(bp);
1468 zb->zb_psize += BP_GET_PSIZE(bp);
1469 zb->zb_count++;
1470 }
1471
1472 if (dump_opt['S']) {
1473 boolean_t print_sig;
1474
1475 print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 &&
1476 BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS);
1477
1478 if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg)
1479 print_sig = B_FALSE;
1480
1481 if (print_sig) {
1482 (void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t"
1483 "%llx:%llx:%llx:%llx\n",
1484 (u_longlong_t)BP_GET_LEVEL(bp),
1485 (longlong_t)BP_GET_PSIZE(bp),
1486 (longlong_t)BP_GET_NDVAS(bp),
1487 dmu_ot[BP_GET_TYPE(bp)].ot_name,
1488 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name,
1489 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name,
1490 (u_longlong_t)bp->blk_cksum.zc_word[0],
1491 (u_longlong_t)bp->blk_cksum.zc_word[1],
1492 (u_longlong_t)bp->blk_cksum.zc_word[2],
1493 (u_longlong_t)bp->blk_cksum.zc_word[3]);
1494 }
1495 }
1496
1497 if (!dump_opt['L'])
1498 VERIFY(zio_wait(zio_claim(NULL, spa, spa_first_txg(spa), bp,
1499 NULL, NULL, ZIO_FLAG_MUSTSUCCEED)) == 0);
1500 }
1501
1502 static int
1503 zdb_blkptr_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb,
1504 const dnode_phys_t *dnp, void *arg)
1505 {
1506 zdb_cb_t *zcb = arg;
1507 char blkbuf[BP_SPRINTF_LEN];
1508
1509 if (bp == NULL)
1510 return (0);
1511
1512 zdb_count_block(spa, zcb, bp, BP_GET_TYPE(bp));
1513
1514 if (dump_opt['c'] || dump_opt['S']) {
1515 int ioerr, size;
1516 void *data;
1517
1518 size = BP_GET_LSIZE(bp);
1519 data = malloc(size);
1520 ioerr = zio_wait(zio_read(NULL, spa, bp, data, size,
1521 NULL, NULL, ZIO_PRIORITY_ASYNC_READ,
1522 ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB, zb));
1523 free(data);
1524
1525 /* We expect io errors on intent log */
1526 if (ioerr && BP_GET_TYPE(bp) != DMU_OT_INTENT_LOG) {
1527 zcb->zcb_haderrors = 1;
1528 zcb->zcb_errors[ioerr]++;
1529
1530 if (dump_opt['b'] >= 2)
1531 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp);
1532 else
1533 blkbuf[0] = '\0';
1534
1535 if (!dump_opt['S']) {
1536 (void) printf("zdb_blkptr_cb: "
1537 "Got error %d reading "
1538 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
1539 ioerr,
1540 (u_longlong_t)zb->zb_objset,
1541 (u_longlong_t)zb->zb_object,
1542 (u_longlong_t)zb->zb_level,
1543 (u_longlong_t)zb->zb_blkid,
1544 blkbuf);
1545 }
1546 }
1547 }
1548
1549 zcb->zcb_readfails = 0;
1550
1551 if (dump_opt['b'] >= 4) {
1552 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp);
1553 (void) printf("objset %llu object %llu offset 0x%llx %s\n",
1554 (u_longlong_t)zb->zb_objset,
1555 (u_longlong_t)zb->zb_object,
1556 (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid),
1557 blkbuf);
1558 }
1559
1560 return (0);
1561 }
1562
1563 static int
1564 dump_block_stats(spa_t *spa)
1565 {
1566 zdb_cb_t zcb = { 0 };
1567 zdb_blkstats_t *zb, *tzb;
1568 uint64_t alloc, space, logalloc;
1569 vdev_t *rvd = spa->spa_root_vdev;
1570 int leaks = 0;
1571 int c, e;
1572
1573 if (!dump_opt['S']) {
1574 (void) printf("\nTraversing all blocks %s%s%s%s...\n",
1575 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
1576 dump_opt['c'] ? "checksums " : "",
1577 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
1578 !dump_opt['L'] ? "nothing leaked " : "");
1579 }
1580
1581 /*
1582 * Load all space maps as SM_ALLOC maps, then traverse the pool
1583 * claiming each block we discover. If the pool is perfectly
1584 * consistent, the space maps will be empty when we're done.
1585 * Anything left over is a leak; any block we can't claim (because
1586 * it's not part of any space map) is a double allocation,
1587 * reference to a freed block, or an unclaimed log block.
1588 */
1589 if (!dump_opt['L'])
1590 zdb_leak_init(spa);
1591
1592 /*
1593 * If there's a deferred-free bplist, process that first.
1594 */
1595 if (spa->spa_sync_bplist_obj != 0) {
1596 bplist_t *bpl = &spa->spa_sync_bplist;
1597 blkptr_t blk;
1598 uint64_t itor = 0;
1599
1600 VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset,
1601 spa->spa_sync_bplist_obj));
1602
1603 while (bplist_iterate(bpl, &itor, &blk) == 0) {
1604 if (dump_opt['b'] >= 4) {
1605 char blkbuf[BP_SPRINTF_LEN];
1606 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk);
1607 (void) printf("[%s] %s\n",
1608 "deferred free", blkbuf);
1609 }
1610 zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED);
1611 }
1612
1613 bplist_close(bpl);
1614 }
1615
1616 zcb.zcb_haderrors |= traverse_pool(spa, zdb_blkptr_cb, &zcb);
1617
1618 if (zcb.zcb_haderrors && !dump_opt['S']) {
1619 (void) printf("\nError counts:\n\n");
1620 (void) printf("\t%5s %s\n", "errno", "count");
1621 for (e = 0; e < 256; e++) {
1622 if (zcb.zcb_errors[e] != 0) {
1623 (void) printf("\t%5d %llu\n",
1624 e, (u_longlong_t)zcb.zcb_errors[e]);
1625 }
1626 }
1627 }
1628
1629 /*
1630 * Report any leaked segments.
1631 */
1632 if (!dump_opt['L'])
1633 zdb_leak_fini(spa);
1634
1635 /*
1636 * If we're interested in printing out the blkptr signatures,
1637 * return now as we don't print out anything else (including
1638 * errors and leaks).
1639 */
1640 if (dump_opt['S'])
1641 return (zcb.zcb_haderrors ? 3 : 0);
1642
1643 alloc = spa_get_alloc(spa);
1644 space = spa_get_space(spa);
1645
1646 /*
1647 * Log blocks allocated from a separate log device don't count
1648 * as part of the normal pool space; factor them in here.
1649 */
1650 logalloc = 0;
1651
1652 for (c = 0; c < rvd->vdev_children; c++)
1653 if (rvd->vdev_child[c]->vdev_islog)
1654 logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc;
1655
1656 tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL];
1657
1658 if (tzb->zb_asize == alloc + logalloc) {
1659 if (!dump_opt['L'])
1660 (void) printf("\n\tNo leaks (block sum matches space"
1661 " maps exactly)\n");
1662 } else {
1663 (void) printf("block traversal size %llu != alloc %llu "
1664 "(%s %lld)\n",
1665 (u_longlong_t)tzb->zb_asize,
1666 (u_longlong_t)alloc + logalloc,
1667 (dump_opt['L']) ? "unreachable" : "leaked",
1668 (longlong_t)(alloc + logalloc - tzb->zb_asize));
1669 leaks = 1;
1670 }
1671
1672 if (tzb->zb_count == 0)
1673 return (2);
1674
1675 (void) printf("\n");
1676 (void) printf("\tbp count: %10llu\n",
1677 (u_longlong_t)tzb->zb_count);
1678 (void) printf("\tbp logical: %10llu\t avg: %6llu\n",
1679 (u_longlong_t)tzb->zb_lsize,
1680 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
1681 (void) printf("\tbp physical: %10llu\t avg:"
1682 " %6llu\tcompression: %6.2f\n",
1683 (u_longlong_t)tzb->zb_psize,
1684 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
1685 (double)tzb->zb_lsize / tzb->zb_psize);
1686 (void) printf("\tbp allocated: %10llu\t avg:"
1687 " %6llu\tcompression: %6.2f\n",
1688 (u_longlong_t)tzb->zb_asize,
1689 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
1690 (double)tzb->zb_lsize / tzb->zb_asize);
1691 (void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n",
1692 (u_longlong_t)alloc, 100.0 * alloc / space);
1693
1694 if (dump_opt['b'] >= 2) {
1695 int l, t, level;
1696 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
1697 "\t avg\t comp\t%%Total\tType\n");
1698
1699 for (t = 0; t <= DMU_OT_NUMTYPES; t++) {
1700 char csize[6], lsize[6], psize[6], asize[6], avg[6];
1701 char *typename;
1702
1703 typename = t == DMU_OT_DEFERRED ? "deferred free" :
1704 t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name;
1705
1706 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
1707 (void) printf("%6s\t%5s\t%5s\t%5s"
1708 "\t%5s\t%5s\t%6s\t%s\n",
1709 "-",
1710 "-",
1711 "-",
1712 "-",
1713 "-",
1714 "-",
1715 "-",
1716 typename);
1717 continue;
1718 }
1719
1720 for (l = ZB_TOTAL - 1; l >= -1; l--) {
1721 level = (l == -1 ? ZB_TOTAL : l);
1722 zb = &zcb.zcb_type[level][t];
1723
1724 if (zb->zb_asize == 0)
1725 continue;
1726
1727 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
1728 continue;
1729
1730 if (level == 0 && zb->zb_asize ==
1731 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
1732 continue;
1733
1734 nicenum(zb->zb_count, csize);
1735 nicenum(zb->zb_lsize, lsize);
1736 nicenum(zb->zb_psize, psize);
1737 nicenum(zb->zb_asize, asize);
1738 nicenum(zb->zb_asize / zb->zb_count, avg);
1739
1740 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
1741 "\t%5.2f\t%6.2f\t",
1742 csize, lsize, psize, asize, avg,
1743 (double)zb->zb_lsize / zb->zb_psize,
1744 100.0 * zb->zb_asize / tzb->zb_asize);
1745
1746 if (level == ZB_TOTAL)
1747 (void) printf("%s\n", typename);
1748 else
1749 (void) printf(" L%d %s\n",
1750 level, typename);
1751 }
1752 }
1753 }
1754
1755 (void) printf("\n");
1756
1757 if (leaks)
1758 return (2);
1759
1760 if (zcb.zcb_haderrors)
1761 return (3);
1762
1763 return (0);
1764 }
1765
1766 static void
1767 dump_zpool(spa_t *spa)
1768 {
1769 dsl_pool_t *dp = spa_get_dsl(spa);
1770 int rc = 0;
1771
1772 if (dump_opt['u'])
1773 dump_uberblock(&spa->spa_uberblock);
1774
1775 if (dump_opt['d'] || dump_opt['i']) {
1776 dump_dir(dp->dp_meta_objset);
1777 if (dump_opt['d'] >= 3) {
1778 dump_bplist(dp->dp_meta_objset,
1779 spa->spa_sync_bplist_obj, "Deferred frees");
1780 dump_dtl(spa->spa_root_vdev, 0);
1781 dump_metaslabs(spa);
1782 }
1783 (void) dmu_objset_find(spa_name(spa), dump_one_dir, NULL,
1784 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
1785 }
1786
1787 if (dump_opt['b'] || dump_opt['c'] || dump_opt['S'])
1788 rc = dump_block_stats(spa);
1789
1790 if (dump_opt['s'])
1791 show_pool_stats(spa);
1792
1793 if (rc != 0)
1794 exit(rc);
1795 }
1796
1797 #define ZDB_FLAG_CHECKSUM 0x0001
1798 #define ZDB_FLAG_DECOMPRESS 0x0002
1799 #define ZDB_FLAG_BSWAP 0x0004
1800 #define ZDB_FLAG_GBH 0x0008
1801 #define ZDB_FLAG_INDIRECT 0x0010
1802 #define ZDB_FLAG_PHYS 0x0020
1803 #define ZDB_FLAG_RAW 0x0040
1804 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
1805
1806 int flagbits[256];
1807
1808 static void
1809 zdb_print_blkptr(blkptr_t *bp, int flags)
1810 {
1811 dva_t *dva = bp->blk_dva;
1812 int d;
1813
1814 if (flags & ZDB_FLAG_BSWAP)
1815 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
1816 /*
1817 * Super-ick warning: This code is also duplicated in
1818 * cmd/mdb/common/modules/zfs/zfs.c . Yeah, I hate code
1819 * replication, too.
1820 */
1821 for (d = 0; d < BP_GET_NDVAS(bp); d++) {
1822 (void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d,
1823 (longlong_t)DVA_GET_VDEV(&dva[d]),
1824 (longlong_t)DVA_GET_OFFSET(&dva[d]));
1825 (void) printf("\tDVA[%d]: GANG: %-5s GRID: %04llx\t"
1826 "ASIZE: %llx\n", d,
1827 DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE",
1828 (longlong_t)DVA_GET_GRID(&dva[d]),
1829 (longlong_t)DVA_GET_ASIZE(&dva[d]));
1830 (void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d,
1831 (u_longlong_t)DVA_GET_VDEV(&dva[d]),
1832 (longlong_t)DVA_GET_OFFSET(&dva[d]),
1833 (longlong_t)BP_GET_PSIZE(bp),
1834 BP_SHOULD_BYTESWAP(bp) ? "e" : "",
1835 !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ?
1836 "d" : "",
1837 DVA_GET_GANG(&dva[d]) ? "g" : "",
1838 BP_GET_COMPRESS(bp) != 0 ? "d" : "");
1839 }
1840 (void) printf("\tLSIZE: %-16llx\t\tPSIZE: %llx\n",
1841 (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp));
1842 (void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE: %s\n",
1843 BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG",
1844 dmu_ot[BP_GET_TYPE(bp)].ot_name);
1845 (void) printf("\tBIRTH: %-16llx LEVEL: %-2llu\tFILL: %llx\n",
1846 (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp),
1847 (u_longlong_t)bp->blk_fill);
1848 (void) printf("\tCKFUNC: %-16s\t\tCOMP: %s\n",
1849 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name,
1850 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name);
1851 (void) printf("\tCKSUM: %llx:%llx:%llx:%llx\n",
1852 (u_longlong_t)bp->blk_cksum.zc_word[0],
1853 (u_longlong_t)bp->blk_cksum.zc_word[1],
1854 (u_longlong_t)bp->blk_cksum.zc_word[2],
1855 (u_longlong_t)bp->blk_cksum.zc_word[3]);
1856 }
1857
1858 static void
1859 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
1860 {
1861 int i;
1862
1863 for (i = 0; i < nbps; i++)
1864 zdb_print_blkptr(&bp[i], flags);
1865 }
1866
1867 static void
1868 zdb_dump_gbh(void *buf, int flags)
1869 {
1870 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
1871 }
1872
1873 static void
1874 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
1875 {
1876 if (flags & ZDB_FLAG_BSWAP)
1877 byteswap_uint64_array(buf, size);
1878 (void) write(2, buf, size);
1879 }
1880
1881 static void
1882 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
1883 {
1884 uint64_t *d = (uint64_t *)buf;
1885 int nwords = size / sizeof (uint64_t);
1886 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
1887 int i, j;
1888 char *hdr, *c;
1889
1890
1891 if (do_bswap)
1892 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
1893 else
1894 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
1895
1896 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
1897
1898 for (i = 0; i < nwords; i += 2) {
1899 (void) printf("%06llx: %016llx %016llx ",
1900 (u_longlong_t)(i * sizeof (uint64_t)),
1901 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
1902 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
1903
1904 c = (char *)&d[i];
1905 for (j = 0; j < 2 * sizeof (uint64_t); j++)
1906 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
1907 (void) printf("\n");
1908 }
1909 }
1910
1911 /*
1912 * There are two acceptable formats:
1913 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
1914 * child[.child]* - For example: 0.1.1
1915 *
1916 * The second form can be used to specify arbitrary vdevs anywhere
1917 * in the heirarchy. For example, in a pool with a mirror of
1918 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
1919 */
1920 static vdev_t *
1921 zdb_vdev_lookup(vdev_t *vdev, char *path)
1922 {
1923 char *s, *p, *q;
1924 int i;
1925
1926 if (vdev == NULL)
1927 return (NULL);
1928
1929 /* First, assume the x.x.x.x format */
1930 i = (int)strtoul(path, &s, 10);
1931 if (s == path || (s && *s != '.' && *s != '\0'))
1932 goto name;
1933 if (i < 0 || i >= vdev->vdev_children)
1934 return (NULL);
1935
1936 vdev = vdev->vdev_child[i];
1937 if (*s == '\0')
1938 return (vdev);
1939 return (zdb_vdev_lookup(vdev, s+1));
1940
1941 name:
1942 for (i = 0; i < vdev->vdev_children; i++) {
1943 vdev_t *vc = vdev->vdev_child[i];
1944
1945 if (vc->vdev_path == NULL) {
1946 vc = zdb_vdev_lookup(vc, path);
1947 if (vc == NULL)
1948 continue;
1949 else
1950 return (vc);
1951 }
1952
1953 p = strrchr(vc->vdev_path, '/');
1954 p = p ? p + 1 : vc->vdev_path;
1955 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
1956
1957 if (strcmp(vc->vdev_path, path) == 0)
1958 return (vc);
1959 if (strcmp(p, path) == 0)
1960 return (vc);
1961 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
1962 return (vc);
1963 }
1964
1965 return (NULL);
1966 }
1967
1968 /*
1969 * Read a block from a pool and print it out. The syntax of the
1970 * block descriptor is:
1971 *
1972 * pool:vdev_specifier:offset:size[:flags]
1973 *
1974 * pool - The name of the pool you wish to read from
1975 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
1976 * offset - offset, in hex, in bytes
1977 * size - Amount of data to read, in hex, in bytes
1978 * flags - A string of characters specifying options
1979 * b: Decode a blkptr at given offset within block
1980 * *c: Calculate and display checksums
1981 * *d: Decompress data before dumping
1982 * e: Byteswap data before dumping
1983 * *g: Display data as a gang block header
1984 * *i: Display as an indirect block
1985 * p: Do I/O to physical offset
1986 * r: Dump raw data to stdout
1987 *
1988 * * = not yet implemented
1989 */
1990 static void
1991 zdb_read_block(char *thing, spa_t **spap)
1992 {
1993 spa_t *spa = *spap;
1994 int flags = 0;
1995 uint64_t offset = 0, size = 0, blkptr_offset = 0;
1996 zio_t *zio;
1997 vdev_t *vd;
1998 void *buf;
1999 char *s, *p, *dup, *pool, *vdev, *flagstr;
2000 int i, error, zio_flags;
2001
2002 dup = strdup(thing);
2003 s = strtok(dup, ":");
2004 pool = s ? s : "";
2005 s = strtok(NULL, ":");
2006 vdev = s ? s : "";
2007 s = strtok(NULL, ":");
2008 offset = strtoull(s ? s : "", NULL, 16);
2009 s = strtok(NULL, ":");
2010 size = strtoull(s ? s : "", NULL, 16);
2011 s = strtok(NULL, ":");
2012 flagstr = s ? s : "";
2013
2014 s = NULL;
2015 if (size == 0)
2016 s = "size must not be zero";
2017 if (!IS_P2ALIGNED(size, DEV_BSIZE))
2018 s = "size must be a multiple of sector size";
2019 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
2020 s = "offset must be a multiple of sector size";
2021 if (s) {
2022 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
2023 free(dup);
2024 return;
2025 }
2026
2027 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
2028 for (i = 0; flagstr[i]; i++) {
2029 int bit = flagbits[(uchar_t)flagstr[i]];
2030
2031 if (bit == 0) {
2032 (void) printf("***Invalid flag: %c\n",
2033 flagstr[i]);
2034 continue;
2035 }
2036 flags |= bit;
2037
2038 /* If it's not something with an argument, keep going */
2039 if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS |
2040 ZDB_FLAG_PRINT_BLKPTR)) == 0)
2041 continue;
2042
2043 p = &flagstr[i + 1];
2044 if (bit == ZDB_FLAG_PRINT_BLKPTR)
2045 blkptr_offset = strtoull(p, &p, 16);
2046 if (*p != ':' && *p != '\0') {
2047 (void) printf("***Invalid flag arg: '%s'\n", s);
2048 free(dup);
2049 return;
2050 }
2051 }
2052 }
2053
2054 if (spa == NULL || strcmp(spa_name(spa), pool) != 0) {
2055 if (spa)
2056 spa_close(spa, (void *)zdb_read_block);
2057 error = spa_open(pool, spap, (void *)zdb_read_block);
2058 if (error)
2059 fatal("Failed to open pool '%s': %s",
2060 pool, strerror(error));
2061 spa = *spap;
2062 }
2063
2064 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
2065 if (vd == NULL) {
2066 (void) printf("***Invalid vdev: %s\n", vdev);
2067 free(dup);
2068 return;
2069 } else {
2070 if (vd->vdev_path)
2071 (void) printf("Found vdev: %s\n", vd->vdev_path);
2072 else
2073 (void) printf("Found vdev type: %s\n",
2074 vd->vdev_ops->vdev_op_type);
2075 }
2076
2077 buf = umem_alloc(size, UMEM_NOFAIL);
2078
2079 zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
2080 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY;
2081
2082 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
2083 zio = zio_root(spa, NULL, NULL, 0);
2084 /* XXX todo - cons up a BP so RAID-Z will be happy */
2085 zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size,
2086 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL));
2087 error = zio_wait(zio);
2088 spa_config_exit(spa, SCL_STATE, FTAG);
2089
2090 if (error) {
2091 (void) printf("Read of %s failed, error: %d\n", thing, error);
2092 goto out;
2093 }
2094
2095 if (flags & ZDB_FLAG_PRINT_BLKPTR)
2096 zdb_print_blkptr((blkptr_t *)(void *)
2097 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
2098 else if (flags & ZDB_FLAG_RAW)
2099 zdb_dump_block_raw(buf, size, flags);
2100 else if (flags & ZDB_FLAG_INDIRECT)
2101 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
2102 flags);
2103 else if (flags & ZDB_FLAG_GBH)
2104 zdb_dump_gbh(buf, flags);
2105 else
2106 zdb_dump_block(thing, buf, size, flags);
2107
2108 out:
2109 umem_free(buf, size);
2110 free(dup);
2111 }
2112
2113 static boolean_t
2114 nvlist_string_match(nvlist_t *config, char *name, char *tgt)
2115 {
2116 char *s;
2117
2118 if (nvlist_lookup_string(config, name, &s) != 0)
2119 return (B_FALSE);
2120
2121 return (strcmp(s, tgt) == 0);
2122 }
2123
2124 static boolean_t
2125 nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt)
2126 {
2127 uint64_t val;
2128
2129 if (nvlist_lookup_uint64(config, name, &val) != 0)
2130 return (B_FALSE);
2131
2132 return (val == tgt);
2133 }
2134
2135 static boolean_t
2136 vdev_child_guid_match(nvlist_t *vdev, uint64_t guid)
2137 {
2138 nvlist_t **child;
2139 uint_t c, children;
2140
2141 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN,
2142 &child, &children) == 0);
2143 for (c = 0; c < children; ++c)
2144 if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid))
2145 return (B_TRUE);
2146 return (B_FALSE);
2147 }
2148
2149 static boolean_t
2150 vdev_child_string_match(nvlist_t *vdev, char *tgt)
2151 {
2152 nvlist_t **child;
2153 uint_t c, children;
2154
2155 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN,
2156 &child, &children) == 0);
2157 for (c = 0; c < children; ++c) {
2158 if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) ||
2159 nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt))
2160 return (B_TRUE);
2161 }
2162 return (B_FALSE);
2163 }
2164
2165 static boolean_t
2166 vdev_guid_match(nvlist_t *config, uint64_t guid)
2167 {
2168 nvlist_t *nvroot;
2169
2170 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2171 &nvroot) == 0);
2172
2173 return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) ||
2174 vdev_child_guid_match(nvroot, guid));
2175 }
2176
2177 static boolean_t
2178 vdev_string_match(nvlist_t *config, char *tgt)
2179 {
2180 nvlist_t *nvroot;
2181
2182 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2183 &nvroot) == 0);
2184
2185 return (vdev_child_string_match(nvroot, tgt));
2186 }
2187
2188 static boolean_t
2189 pool_match(nvlist_t *config, char *tgt)
2190 {
2191 uint64_t guid = strtoull(tgt, NULL, 0);
2192
2193 if (guid != 0) {
2194 return (
2195 nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) ||
2196 vdev_guid_match(config, guid));
2197 } else {
2198 return (
2199 nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) ||
2200 vdev_string_match(config, tgt));
2201 }
2202 }
2203
2204 static int
2205 find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir)
2206 {
2207 nvlist_t *pools;
2208 int error = ENOENT;
2209 nvlist_t *match = NULL;
2210
2211 if (vdev_dir != NULL)
2212 pools = zpool_find_import_activeok(g_zfs, 1, &vdev_dir);
2213 else
2214 pools = zpool_find_import_activeok(g_zfs, 0, NULL);
2215
2216 if (pools != NULL) {
2217 nvpair_t *elem = NULL;
2218
2219 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
2220 verify(nvpair_value_nvlist(elem, configp) == 0);
2221 if (pool_match(*configp, pool_id)) {
2222 if (match != NULL) {
2223 (void) fatal(
2224 "More than one matching pool - "
2225 "specify guid/devid/device path.");
2226 } else {
2227 match = *configp;
2228 error = 0;
2229 }
2230 }
2231 }
2232 }
2233
2234 *configp = error ? NULL : match;
2235
2236 return (error);
2237 }
2238
2239 int
2240 main(int argc, char **argv)
2241 {
2242 int i, c;
2243 struct rlimit rl = { 1024, 1024 };
2244 spa_t *spa;
2245 objset_t *os = NULL;
2246 char *endstr;
2247 int dump_all = 1;
2248 int verbose = 0;
2249 int error;
2250 int exported = 0;
2251 char *vdev_dir = NULL;
2252
2253 (void) setrlimit(RLIMIT_NOFILE, &rl);
2254 (void) enable_extended_FILE_stdio(-1, -1);
2255
2256 dprintf_setup(&argc, argv);
2257
2258 while ((c = getopt(argc, argv, "udibcsvCLS:U:lRep:t:")) != -1) {
2259 switch (c) {
2260 case 'u':
2261 case 'd':
2262 case 'i':
2263 case 'b':
2264 case 'c':
2265 case 's':
2266 case 'C':
2267 case 'l':
2268 case 'R':
2269 dump_opt[c]++;
2270 dump_all = 0;
2271 break;
2272 case 'L':
2273 dump_opt[c]++;
2274 break;
2275 case 'v':
2276 verbose++;
2277 break;
2278 case 'U':
2279 spa_config_path = optarg;
2280 break;
2281 case 'e':
2282 exported = 1;
2283 break;
2284 case 'p':
2285 vdev_dir = optarg;
2286 break;
2287 case 'S':
2288 dump_opt[c]++;
2289 dump_all = 0;
2290 zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0);
2291 if (!zdb_sig_user_data && strncmp(optarg, "all:", 4))
2292 usage();
2293 endstr = strchr(optarg, ':') + 1;
2294 if (strcmp(endstr, "fletcher2") == 0)
2295 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2;
2296 else if (strcmp(endstr, "fletcher4") == 0)
2297 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4;
2298 else if (strcmp(endstr, "sha256") == 0)
2299 zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256;
2300 else if (strcmp(endstr, "all") == 0)
2301 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2;
2302 else
2303 usage();
2304 break;
2305 case 't':
2306 ub_max_txg = strtoull(optarg, NULL, 0);
2307 if (ub_max_txg < TXG_INITIAL) {
2308 (void) fprintf(stderr, "incorrect txg "
2309 "specified: %s\n", optarg);
2310 usage();
2311 }
2312 break;
2313 default:
2314 usage();
2315 break;
2316 }
2317 }
2318
2319 if (vdev_dir != NULL && exported == 0) {
2320 (void) fprintf(stderr, "-p option requires use of -e\n");
2321 usage();
2322 }
2323
2324 kernel_init(FREAD);
2325 g_zfs = libzfs_init();
2326 ASSERT(g_zfs != NULL);
2327
2328 for (c = 0; c < 256; c++) {
2329 if (dump_all && c != 'l' && c != 'R')
2330 dump_opt[c] = 1;
2331 if (dump_opt[c])
2332 dump_opt[c] += verbose;
2333 }
2334
2335 argc -= optind;
2336 argv += optind;
2337
2338 if (argc < 1) {
2339 if (dump_opt['C']) {
2340 dump_cachefile(spa_config_path);
2341 return (0);
2342 }
2343 usage();
2344 }
2345
2346 if (dump_opt['l']) {
2347 dump_label(argv[0]);
2348 return (0);
2349 }
2350
2351 if (dump_opt['R']) {
2352 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
2353 flagbits['c'] = ZDB_FLAG_CHECKSUM;
2354 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
2355 flagbits['e'] = ZDB_FLAG_BSWAP;
2356 flagbits['g'] = ZDB_FLAG_GBH;
2357 flagbits['i'] = ZDB_FLAG_INDIRECT;
2358 flagbits['p'] = ZDB_FLAG_PHYS;
2359 flagbits['r'] = ZDB_FLAG_RAW;
2360
2361 spa = NULL;
2362 while (argv[0]) {
2363 zdb_read_block(argv[0], &spa);
2364 argv++;
2365 argc--;
2366 }
2367 if (spa)
2368 spa_close(spa, (void *)zdb_read_block);
2369 return (0);
2370 }
2371
2372 if (dump_opt['C'])
2373 dump_config(argv[0]);
2374
2375 error = 0;
2376 if (exported) {
2377 /*
2378 * Check to see if the name refers to an exported zpool
2379 */
2380 char *slash;
2381 nvlist_t *exported_conf = NULL;
2382
2383 if ((slash = strchr(argv[0], '/')) != NULL)
2384 *slash = '\0';
2385
2386 error = find_exported_zpool(argv[0], &exported_conf, vdev_dir);
2387 if (error == 0) {
2388 nvlist_t *nvl = NULL;
2389
2390 if (vdev_dir != NULL) {
2391 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
2392 error = ENOMEM;
2393 else if (nvlist_add_string(nvl,
2394 zpool_prop_to_name(ZPOOL_PROP_ALTROOT),
2395 vdev_dir) != 0)
2396 error = ENOMEM;
2397 }
2398
2399 if (error == 0)
2400 error = spa_import_faulted(argv[0],
2401 exported_conf, nvl);
2402
2403 nvlist_free(nvl);
2404 }
2405
2406 if (slash != NULL)
2407 *slash = '/';
2408 }
2409
2410 if (error == 0) {
2411 if (strchr(argv[0], '/') != NULL) {
2412 error = dmu_objset_open(argv[0], DMU_OST_ANY,
2413 DS_MODE_USER | DS_MODE_READONLY, &os);
2414 } else {
2415 error = spa_open(argv[0], &spa, FTAG);
2416 }
2417 }
2418
2419 if (error)
2420 fatal("can't open %s: %s", argv[0], strerror(error));
2421
2422 argv++;
2423 if (--argc > 0) {
2424 zopt_objects = argc;
2425 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
2426 for (i = 0; i < zopt_objects; i++) {
2427 errno = 0;
2428 zopt_object[i] = strtoull(argv[i], NULL, 0);
2429 if (zopt_object[i] == 0 && errno != 0)
2430 fatal("bad object number %s: %s",
2431 argv[i], strerror(errno));
2432 }
2433 }
2434
2435 if (os != NULL) {
2436 dump_dir(os);
2437 dmu_objset_close(os);
2438 } else {
2439 dump_zpool(spa);
2440 spa_close(spa, FTAG);
2441 }
2442
2443 fuid_table_destroy();
2444
2445 libzfs_fini(g_zfs);
2446 kernel_fini();
2447
2448 return (0);
2449 }