zdb.c revision 7bfdf011e081684f853a3242d0296695110d9d84
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 2009 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
58const char cmdname[] = "zdb";
59uint8_t dump_opt[256];
60
61typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
62
63extern void dump_intent_log(zilog_t *);
64uint64_t *zopt_object = NULL;
65int zopt_objects = 0;
66libzfs_handle_t *g_zfs;
67boolean_t zdb_sig_user_data = B_TRUE;
68int 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 */
74const char *
75_umem_debug_init()
76{
77	return ("default,verbose"); /* $UMEM_DEBUG setting */
78}
79
80const char *
81_umem_logging_init(void)
82{
83	return ("fail,contents"); /* $UMEM_LOGGING setting */
84}
85
86static void
87usage(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, "	-m metaslabs\n");
106	(void) fprintf(stderr, "	-c checksum all metadata (twice for "
107	    "all data) blocks\n");
108	(void) fprintf(stderr, "	-s report stats on zdb's I/O\n");
109	(void) fprintf(stderr, "	-S <user|all>:<cksum_alg|all> -- "
110	    "dump blkptr signatures\n");
111	(void) fprintf(stderr, "	-v verbose (applies to all others)\n");
112	(void) fprintf(stderr, "        -l dump label contents\n");
113	(void) fprintf(stderr, "        -L disable leak tracking (do not "
114	    "load spacemaps)\n");
115	(void) fprintf(stderr, "	-U cachefile_path -- use alternate "
116	    "cachefile\n");
117	(void) fprintf(stderr, "        -R read and display block from a "
118	    "device\n");
119	(void) fprintf(stderr, "        -e Pool is exported/destroyed/"
120	    "has altroot\n");
121	(void) fprintf(stderr, "	-p <Path to vdev dir> (use with -e)\n");
122	(void) fprintf(stderr, "	-t <txg> highest txg to use when "
123	    "searching for uberblocks\n");
124	(void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
125	    "to make only that option verbose\n");
126	(void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
127	exit(1);
128}
129
130/*
131 * Called for usage errors that are discovered after a call to spa_open(),
132 * dmu_bonus_hold(), or pool_match().  abort() is called for other errors.
133 */
134
135static void
136fatal(const char *fmt, ...)
137{
138	va_list ap;
139
140	va_start(ap, fmt);
141	(void) fprintf(stderr, "%s: ", cmdname);
142	(void) vfprintf(stderr, fmt, ap);
143	va_end(ap);
144	(void) fprintf(stderr, "\n");
145
146	exit(1);
147}
148
149static void
150dump_nvlist(nvlist_t *list, int indent)
151{
152	nvpair_t *elem = NULL;
153
154	while ((elem = nvlist_next_nvpair(list, elem)) != NULL) {
155		switch (nvpair_type(elem)) {
156		case DATA_TYPE_STRING:
157			{
158				char *value;
159
160				VERIFY(nvpair_value_string(elem, &value) == 0);
161				(void) printf("%*s%s='%s'\n", indent, "",
162				    nvpair_name(elem), value);
163			}
164			break;
165
166		case DATA_TYPE_UINT64:
167			{
168				uint64_t value;
169
170				VERIFY(nvpair_value_uint64(elem, &value) == 0);
171				(void) printf("%*s%s=%llu\n", indent, "",
172				    nvpair_name(elem), (u_longlong_t)value);
173			}
174			break;
175
176		case DATA_TYPE_NVLIST:
177			{
178				nvlist_t *value;
179
180				VERIFY(nvpair_value_nvlist(elem, &value) == 0);
181				(void) printf("%*s%s\n", indent, "",
182				    nvpair_name(elem));
183				dump_nvlist(value, indent + 4);
184			}
185			break;
186
187		case DATA_TYPE_NVLIST_ARRAY:
188			{
189				nvlist_t **value;
190				uint_t c, count;
191
192				VERIFY(nvpair_value_nvlist_array(elem, &value,
193				    &count) == 0);
194
195				for (c = 0; c < count; c++) {
196					(void) printf("%*s%s[%u]\n", indent, "",
197					    nvpair_name(elem), c);
198					dump_nvlist(value[c], indent + 8);
199				}
200			}
201			break;
202
203		default:
204
205			(void) printf("bad config type %d for %s\n",
206			    nvpair_type(elem), nvpair_name(elem));
207		}
208	}
209}
210
211/* ARGSUSED */
212static void
213dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
214{
215	nvlist_t *nv;
216	size_t nvsize = *(uint64_t *)data;
217	char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
218
219	VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
220
221	VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
222
223	umem_free(packed, nvsize);
224
225	dump_nvlist(nv, 8);
226
227	nvlist_free(nv);
228}
229
230const char dump_zap_stars[] = "****************************************";
231const int dump_zap_width = sizeof (dump_zap_stars) - 1;
232
233static void
234dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE])
235{
236	int i;
237	int minidx = ZAP_HISTOGRAM_SIZE - 1;
238	int maxidx = 0;
239	uint64_t max = 0;
240
241	for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) {
242		if (histo[i] > max)
243			max = histo[i];
244		if (histo[i] > 0 && i > maxidx)
245			maxidx = i;
246		if (histo[i] > 0 && i < minidx)
247			minidx = i;
248	}
249
250	if (max < dump_zap_width)
251		max = dump_zap_width;
252
253	for (i = minidx; i <= maxidx; i++)
254		(void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i],
255		    &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]);
256}
257
258static void
259dump_zap_stats(objset_t *os, uint64_t object)
260{
261	int error;
262	zap_stats_t zs;
263
264	error = zap_get_stats(os, object, &zs);
265	if (error)
266		return;
267
268	if (zs.zs_ptrtbl_len == 0) {
269		ASSERT(zs.zs_num_blocks == 1);
270		(void) printf("\tmicrozap: %llu bytes, %llu entries\n",
271		    (u_longlong_t)zs.zs_blocksize,
272		    (u_longlong_t)zs.zs_num_entries);
273		return;
274	}
275
276	(void) printf("\tFat ZAP stats:\n");
277
278	(void) printf("\t\tPointer table:\n");
279	(void) printf("\t\t\t%llu elements\n",
280	    (u_longlong_t)zs.zs_ptrtbl_len);
281	(void) printf("\t\t\tzt_blk: %llu\n",
282	    (u_longlong_t)zs.zs_ptrtbl_zt_blk);
283	(void) printf("\t\t\tzt_numblks: %llu\n",
284	    (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
285	(void) printf("\t\t\tzt_shift: %llu\n",
286	    (u_longlong_t)zs.zs_ptrtbl_zt_shift);
287	(void) printf("\t\t\tzt_blks_copied: %llu\n",
288	    (u_longlong_t)zs.zs_ptrtbl_blks_copied);
289	(void) printf("\t\t\tzt_nextblk: %llu\n",
290	    (u_longlong_t)zs.zs_ptrtbl_nextblk);
291
292	(void) printf("\t\tZAP entries: %llu\n",
293	    (u_longlong_t)zs.zs_num_entries);
294	(void) printf("\t\tLeaf blocks: %llu\n",
295	    (u_longlong_t)zs.zs_num_leafs);
296	(void) printf("\t\tTotal blocks: %llu\n",
297	    (u_longlong_t)zs.zs_num_blocks);
298	(void) printf("\t\tzap_block_type: 0x%llx\n",
299	    (u_longlong_t)zs.zs_block_type);
300	(void) printf("\t\tzap_magic: 0x%llx\n",
301	    (u_longlong_t)zs.zs_magic);
302	(void) printf("\t\tzap_salt: 0x%llx\n",
303	    (u_longlong_t)zs.zs_salt);
304
305	(void) printf("\t\tLeafs with 2^n pointers:\n");
306	dump_zap_histogram(zs.zs_leafs_with_2n_pointers);
307
308	(void) printf("\t\tBlocks with n*5 entries:\n");
309	dump_zap_histogram(zs.zs_blocks_with_n5_entries);
310
311	(void) printf("\t\tBlocks n/10 full:\n");
312	dump_zap_histogram(zs.zs_blocks_n_tenths_full);
313
314	(void) printf("\t\tEntries with n chunks:\n");
315	dump_zap_histogram(zs.zs_entries_using_n_chunks);
316
317	(void) printf("\t\tBuckets with n entries:\n");
318	dump_zap_histogram(zs.zs_buckets_with_n_entries);
319}
320
321/*ARGSUSED*/
322static void
323dump_none(objset_t *os, uint64_t object, void *data, size_t size)
324{
325}
326
327/*ARGSUSED*/
328void
329dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
330{
331}
332
333/*ARGSUSED*/
334static void
335dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
336{
337}
338
339/*ARGSUSED*/
340static void
341dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
342{
343	zap_cursor_t zc;
344	zap_attribute_t attr;
345	void *prop;
346	int i;
347
348	dump_zap_stats(os, object);
349	(void) printf("\n");
350
351	for (zap_cursor_init(&zc, os, object);
352	    zap_cursor_retrieve(&zc, &attr) == 0;
353	    zap_cursor_advance(&zc)) {
354		(void) printf("\t\t%s = ", attr.za_name);
355		if (attr.za_num_integers == 0) {
356			(void) printf("\n");
357			continue;
358		}
359		prop = umem_zalloc(attr.za_num_integers *
360		    attr.za_integer_length, UMEM_NOFAIL);
361		(void) zap_lookup(os, object, attr.za_name,
362		    attr.za_integer_length, attr.za_num_integers, prop);
363		if (attr.za_integer_length == 1) {
364			(void) printf("%s", (char *)prop);
365		} else {
366			for (i = 0; i < attr.za_num_integers; i++) {
367				switch (attr.za_integer_length) {
368				case 2:
369					(void) printf("%u ",
370					    ((uint16_t *)prop)[i]);
371					break;
372				case 4:
373					(void) printf("%u ",
374					    ((uint32_t *)prop)[i]);
375					break;
376				case 8:
377					(void) printf("%lld ",
378					    (u_longlong_t)((int64_t *)prop)[i]);
379					break;
380				}
381			}
382		}
383		(void) printf("\n");
384		umem_free(prop, attr.za_num_integers * attr.za_integer_length);
385	}
386	zap_cursor_fini(&zc);
387}
388
389/*ARGSUSED*/
390static void
391dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
392{
393	zap_cursor_t zc;
394	zap_attribute_t attr;
395	const char *typenames[] = {
396		/* 0 */ "not specified",
397		/* 1 */ "FIFO",
398		/* 2 */ "Character Device",
399		/* 3 */ "3 (invalid)",
400		/* 4 */ "Directory",
401		/* 5 */ "5 (invalid)",
402		/* 6 */ "Block Device",
403		/* 7 */ "7 (invalid)",
404		/* 8 */ "Regular File",
405		/* 9 */ "9 (invalid)",
406		/* 10 */ "Symbolic Link",
407		/* 11 */ "11 (invalid)",
408		/* 12 */ "Socket",
409		/* 13 */ "Door",
410		/* 14 */ "Event Port",
411		/* 15 */ "15 (invalid)",
412	};
413
414	dump_zap_stats(os, object);
415	(void) printf("\n");
416
417	for (zap_cursor_init(&zc, os, object);
418	    zap_cursor_retrieve(&zc, &attr) == 0;
419	    zap_cursor_advance(&zc)) {
420		(void) printf("\t\t%s = %lld (type: %s)\n",
421		    attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
422		    typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
423	}
424	zap_cursor_fini(&zc);
425}
426
427static void
428dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm)
429{
430	uint64_t alloc, offset, entry;
431	uint8_t mapshift = sm->sm_shift;
432	uint64_t mapstart = sm->sm_start;
433	char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
434			    "INVALID", "INVALID", "INVALID", "INVALID" };
435
436	if (smo->smo_object == 0)
437		return;
438
439	/*
440	 * Print out the freelist entries in both encoded and decoded form.
441	 */
442	alloc = 0;
443	for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) {
444		VERIFY(0 == dmu_read(os, smo->smo_object, offset,
445		    sizeof (entry), &entry, DMU_READ_PREFETCH));
446		if (SM_DEBUG_DECODE(entry)) {
447			(void) printf("\t\t[%4llu] %s: txg %llu, pass %llu\n",
448			    (u_longlong_t)(offset / sizeof (entry)),
449			    ddata[SM_DEBUG_ACTION_DECODE(entry)],
450			    (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
451			    (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
452		} else {
453			(void) printf("\t\t[%4llu]    %c  range:"
454			    " %08llx-%08llx  size: %06llx\n",
455			    (u_longlong_t)(offset / sizeof (entry)),
456			    SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
457			    (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
458			    mapshift) + mapstart),
459			    (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
460			    mapshift) + mapstart + (SM_RUN_DECODE(entry) <<
461			    mapshift)),
462			    (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
463			if (SM_TYPE_DECODE(entry) == SM_ALLOC)
464				alloc += SM_RUN_DECODE(entry) << mapshift;
465			else
466				alloc -= SM_RUN_DECODE(entry) << mapshift;
467		}
468	}
469	if (alloc != smo->smo_alloc) {
470		(void) printf("space_map_object alloc (%llu) INCONSISTENT "
471		    "with space map summary (%llu)\n",
472		    (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc);
473	}
474}
475
476static void
477dump_metaslab_stats(metaslab_t *msp)
478{
479	char maxbuf[5];
480	space_map_t *sm = &msp->ms_map;
481	avl_tree_t *t = sm->sm_pp_root;
482	int free_pct = sm->sm_space * 100 / sm->sm_size;
483
484	nicenum(space_map_maxsize(sm), maxbuf);
485
486	(void) printf("\t %20s %10lu   %7s  %6s   %4s %4d%%\n",
487	    "segments", avl_numnodes(t), "maxsize", maxbuf,
488	    "freepct", free_pct);
489}
490
491static void
492dump_metaslab(metaslab_t *msp)
493{
494	char freebuf[5];
495	space_map_obj_t *smo = &msp->ms_smo;
496	vdev_t *vd = msp->ms_group->mg_vd;
497	spa_t *spa = vd->vdev_spa;
498
499	nicenum(msp->ms_map.sm_size - smo->smo_alloc, freebuf);
500
501	(void) printf(
502	    "\tvdev %5llu   offset %12llx   spacemap %6llu   free    %5s\n",
503	    (u_longlong_t)vd->vdev_id, (u_longlong_t)msp->ms_map.sm_start,
504	    (u_longlong_t)smo->smo_object, freebuf);
505
506	if (dump_opt['m'] > 1) {
507		mutex_enter(&msp->ms_lock);
508		VERIFY(space_map_load(&msp->ms_map, zfs_metaslab_ops,
509		    SM_FREE, &msp->ms_smo, spa->spa_meta_objset) == 0);
510		dump_metaslab_stats(msp);
511		space_map_unload(&msp->ms_map);
512		mutex_exit(&msp->ms_lock);
513	}
514
515	if (dump_opt['d'] > 5 || dump_opt['m'] > 2) {
516		ASSERT(msp->ms_map.sm_size == (1ULL << vd->vdev_ms_shift));
517
518		mutex_enter(&msp->ms_lock);
519		dump_spacemap(spa->spa_meta_objset, smo, &msp->ms_map);
520		mutex_exit(&msp->ms_lock);
521	}
522
523}
524
525static void
526dump_metaslabs(spa_t *spa)
527{
528	vdev_t *rvd = spa->spa_root_vdev;
529	vdev_t *vd;
530	int c, m;
531
532	(void) printf("\nMetaslabs:\n");
533
534	for (c = 0; c < rvd->vdev_children; c++) {
535		vd = rvd->vdev_child[c];
536
537		(void) printf("\t%-10s   %-19s   %-15s   %-10s\n",
538		    "vdev", "offset", "spacemap", "free");
539		(void) printf("\t%10s   %19s   %15s   %10s\n",
540		    "----------", "-------------------",
541		    "---------------", "-------------");
542
543		for (m = 0; m < vd->vdev_ms_count; m++)
544			dump_metaslab(vd->vdev_ms[m]);
545		(void) printf("\n");
546	}
547}
548
549static void
550dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size)
551{
552	char *prefix = (void *)sm;
553
554	(void) printf("%s [%llu,%llu) length %llu\n",
555	    prefix,
556	    (u_longlong_t)start,
557	    (u_longlong_t)(start + size),
558	    (u_longlong_t)(size));
559}
560
561static void
562dump_dtl(vdev_t *vd, int indent)
563{
564	spa_t *spa = vd->vdev_spa;
565	boolean_t required;
566	char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
567	char prefix[256];
568
569	spa_vdev_state_enter(spa);
570	required = vdev_dtl_required(vd);
571	(void) spa_vdev_state_exit(spa, NULL, 0);
572
573	if (indent == 0)
574		(void) printf("\nDirty time logs:\n\n");
575
576	(void) printf("\t%*s%s [%s]\n", indent, "",
577	    vd->vdev_path ? vd->vdev_path :
578	    vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
579	    required ? "DTL-required" : "DTL-expendable");
580
581	for (int t = 0; t < DTL_TYPES; t++) {
582		space_map_t *sm = &vd->vdev_dtl[t];
583		if (sm->sm_space == 0)
584			continue;
585		(void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
586		    indent + 2, "", name[t]);
587		mutex_enter(sm->sm_lock);
588		space_map_walk(sm, dump_dtl_seg, (void *)prefix);
589		mutex_exit(sm->sm_lock);
590		if (dump_opt['d'] > 5 && vd->vdev_children == 0)
591			dump_spacemap(spa->spa_meta_objset,
592			    &vd->vdev_dtl_smo, sm);
593	}
594
595	for (int c = 0; c < vd->vdev_children; c++)
596		dump_dtl(vd->vdev_child[c], indent + 4);
597}
598
599/*ARGSUSED*/
600static void
601dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
602{
603}
604
605static uint64_t
606blkid2offset(const dnode_phys_t *dnp, int level, uint64_t blkid)
607{
608	if (level < 0)
609		return (blkid);
610
611	return ((blkid << (level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
612	    dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
613}
614
615static void
616sprintf_blkptr_compact(char *blkbuf, blkptr_t *bp, int alldvas)
617{
618	dva_t *dva = bp->blk_dva;
619	int ndvas = alldvas ? BP_GET_NDVAS(bp) : 1;
620	int i;
621
622	blkbuf[0] = '\0';
623
624	for (i = 0; i < ndvas; i++)
625		(void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ",
626		    (u_longlong_t)DVA_GET_VDEV(&dva[i]),
627		    (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
628		    (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
629
630	(void) sprintf(blkbuf + strlen(blkbuf), "%llxL/%llxP F=%llu B=%llu",
631	    (u_longlong_t)BP_GET_LSIZE(bp),
632	    (u_longlong_t)BP_GET_PSIZE(bp),
633	    (u_longlong_t)bp->blk_fill,
634	    (u_longlong_t)bp->blk_birth);
635}
636
637static void
638print_indirect(blkptr_t *bp, const zbookmark_t *zb,
639    const dnode_phys_t *dnp)
640{
641	char blkbuf[BP_SPRINTF_LEN];
642	int l;
643
644	ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
645	ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
646
647	(void) printf("%16llx ",
648	    (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid));
649
650	ASSERT(zb->zb_level >= 0);
651
652	for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
653		if (l == zb->zb_level) {
654			(void) printf("L%llx", (u_longlong_t)zb->zb_level);
655		} else {
656			(void) printf(" ");
657		}
658	}
659
660	sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0);
661	(void) printf("%s\n", blkbuf);
662}
663
664#define	SET_BOOKMARK(zb, objset, object, level, blkid)  \
665{                                                       \
666	(zb)->zb_objset = objset;                       \
667	(zb)->zb_object = object;                       \
668	(zb)->zb_level = level;                         \
669	(zb)->zb_blkid = blkid;                         \
670}
671
672static int
673visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
674    blkptr_t *bp, const zbookmark_t *zb)
675{
676	int err;
677
678	if (bp->blk_birth == 0)
679		return (0);
680
681	print_indirect(bp, zb, dnp);
682
683	if (BP_GET_LEVEL(bp) > 0) {
684		uint32_t flags = ARC_WAIT;
685		int i;
686		blkptr_t *cbp;
687		int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
688		arc_buf_t *buf;
689		uint64_t fill = 0;
690
691		err = arc_read_nolock(NULL, spa, bp, arc_getbuf_func, &buf,
692		    ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
693		if (err)
694			return (err);
695
696		/* recursively visit blocks below this */
697		cbp = buf->b_data;
698		for (i = 0; i < epb; i++, cbp++) {
699			zbookmark_t czb;
700
701			SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
702			    zb->zb_level - 1,
703			    zb->zb_blkid * epb + i);
704			err = visit_indirect(spa, dnp, cbp, &czb);
705			if (err)
706				break;
707			fill += cbp->blk_fill;
708		}
709		if (!err)
710			ASSERT3U(fill, ==, bp->blk_fill);
711		(void) arc_buf_remove_ref(buf, &buf);
712	}
713
714	return (err);
715}
716
717/*ARGSUSED*/
718static void
719dump_indirect(dnode_t *dn)
720{
721	dnode_phys_t *dnp = dn->dn_phys;
722	int j;
723	zbookmark_t czb;
724
725	(void) printf("Indirect blocks:\n");
726
727	SET_BOOKMARK(&czb, dmu_objset_id(&dn->dn_objset->os),
728	    dn->dn_object, dnp->dn_nlevels - 1, 0);
729	for (j = 0; j < dnp->dn_nblkptr; j++) {
730		czb.zb_blkid = j;
731		(void) visit_indirect(dmu_objset_spa(&dn->dn_objset->os), dnp,
732		    &dnp->dn_blkptr[j], &czb);
733	}
734
735	(void) printf("\n");
736}
737
738/*ARGSUSED*/
739static void
740dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
741{
742	dsl_dir_phys_t *dd = data;
743	time_t crtime;
744	char nice[6];
745
746	if (dd == NULL)
747		return;
748
749	ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
750
751	crtime = dd->dd_creation_time;
752	(void) printf("\t\tcreation_time = %s", ctime(&crtime));
753	(void) printf("\t\thead_dataset_obj = %llu\n",
754	    (u_longlong_t)dd->dd_head_dataset_obj);
755	(void) printf("\t\tparent_dir_obj = %llu\n",
756	    (u_longlong_t)dd->dd_parent_obj);
757	(void) printf("\t\torigin_obj = %llu\n",
758	    (u_longlong_t)dd->dd_origin_obj);
759	(void) printf("\t\tchild_dir_zapobj = %llu\n",
760	    (u_longlong_t)dd->dd_child_dir_zapobj);
761	nicenum(dd->dd_used_bytes, nice);
762	(void) printf("\t\tused_bytes = %s\n", nice);
763	nicenum(dd->dd_compressed_bytes, nice);
764	(void) printf("\t\tcompressed_bytes = %s\n", nice);
765	nicenum(dd->dd_uncompressed_bytes, nice);
766	(void) printf("\t\tuncompressed_bytes = %s\n", nice);
767	nicenum(dd->dd_quota, nice);
768	(void) printf("\t\tquota = %s\n", nice);
769	nicenum(dd->dd_reserved, nice);
770	(void) printf("\t\treserved = %s\n", nice);
771	(void) printf("\t\tprops_zapobj = %llu\n",
772	    (u_longlong_t)dd->dd_props_zapobj);
773	(void) printf("\t\tdeleg_zapobj = %llu\n",
774	    (u_longlong_t)dd->dd_deleg_zapobj);
775	(void) printf("\t\tflags = %llx\n",
776	    (u_longlong_t)dd->dd_flags);
777
778#define	DO(which) \
779	nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
780	(void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
781	DO(HEAD);
782	DO(SNAP);
783	DO(CHILD);
784	DO(CHILD_RSRV);
785	DO(REFRSRV);
786#undef DO
787}
788
789/*ARGSUSED*/
790static void
791dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
792{
793	dsl_dataset_phys_t *ds = data;
794	time_t crtime;
795	char used[6], compressed[6], uncompressed[6], unique[6];
796	char blkbuf[BP_SPRINTF_LEN];
797
798	if (ds == NULL)
799		return;
800
801	ASSERT(size == sizeof (*ds));
802	crtime = ds->ds_creation_time;
803	nicenum(ds->ds_used_bytes, used);
804	nicenum(ds->ds_compressed_bytes, compressed);
805	nicenum(ds->ds_uncompressed_bytes, uncompressed);
806	nicenum(ds->ds_unique_bytes, unique);
807	sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ds->ds_bp);
808
809	(void) printf("\t\tdir_obj = %llu\n",
810	    (u_longlong_t)ds->ds_dir_obj);
811	(void) printf("\t\tprev_snap_obj = %llu\n",
812	    (u_longlong_t)ds->ds_prev_snap_obj);
813	(void) printf("\t\tprev_snap_txg = %llu\n",
814	    (u_longlong_t)ds->ds_prev_snap_txg);
815	(void) printf("\t\tnext_snap_obj = %llu\n",
816	    (u_longlong_t)ds->ds_next_snap_obj);
817	(void) printf("\t\tsnapnames_zapobj = %llu\n",
818	    (u_longlong_t)ds->ds_snapnames_zapobj);
819	(void) printf("\t\tnum_children = %llu\n",
820	    (u_longlong_t)ds->ds_num_children);
821	(void) printf("\t\tcreation_time = %s", ctime(&crtime));
822	(void) printf("\t\tcreation_txg = %llu\n",
823	    (u_longlong_t)ds->ds_creation_txg);
824	(void) printf("\t\tdeadlist_obj = %llu\n",
825	    (u_longlong_t)ds->ds_deadlist_obj);
826	(void) printf("\t\tused_bytes = %s\n", used);
827	(void) printf("\t\tcompressed_bytes = %s\n", compressed);
828	(void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
829	(void) printf("\t\tunique = %s\n", unique);
830	(void) printf("\t\tfsid_guid = %llu\n",
831	    (u_longlong_t)ds->ds_fsid_guid);
832	(void) printf("\t\tguid = %llu\n",
833	    (u_longlong_t)ds->ds_guid);
834	(void) printf("\t\tflags = %llx\n",
835	    (u_longlong_t)ds->ds_flags);
836	(void) printf("\t\tnext_clones_obj = %llu\n",
837	    (u_longlong_t)ds->ds_next_clones_obj);
838	(void) printf("\t\tprops_obj = %llu\n",
839	    (u_longlong_t)ds->ds_props_obj);
840	(void) printf("\t\tbp = %s\n", blkbuf);
841}
842
843static void
844dump_bplist(objset_t *mos, uint64_t object, char *name)
845{
846	bplist_t bpl = { 0 };
847	blkptr_t blk, *bp = &blk;
848	uint64_t itor = 0;
849	char bytes[6];
850	char comp[6];
851	char uncomp[6];
852
853	if (dump_opt['d'] < 3)
854		return;
855
856	mutex_init(&bpl.bpl_lock, NULL, MUTEX_DEFAULT, NULL);
857	VERIFY(0 == bplist_open(&bpl, mos, object));
858	if (bplist_empty(&bpl)) {
859		bplist_close(&bpl);
860		mutex_destroy(&bpl.bpl_lock);
861		return;
862	}
863
864	nicenum(bpl.bpl_phys->bpl_bytes, bytes);
865	if (bpl.bpl_dbuf->db_size == sizeof (bplist_phys_t)) {
866		nicenum(bpl.bpl_phys->bpl_comp, comp);
867		nicenum(bpl.bpl_phys->bpl_uncomp, uncomp);
868		(void) printf("\n    %s: %llu entries, %s (%s/%s comp)\n",
869		    name, (u_longlong_t)bpl.bpl_phys->bpl_entries,
870		    bytes, comp, uncomp);
871	} else {
872		(void) printf("\n    %s: %llu entries, %s\n",
873		    name, (u_longlong_t)bpl.bpl_phys->bpl_entries, bytes);
874	}
875
876	if (dump_opt['d'] < 5) {
877		bplist_close(&bpl);
878		mutex_destroy(&bpl.bpl_lock);
879		return;
880	}
881
882	(void) printf("\n");
883
884	while (bplist_iterate(&bpl, &itor, bp) == 0) {
885		char blkbuf[BP_SPRINTF_LEN];
886
887		ASSERT(bp->blk_birth != 0);
888		sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0);
889		(void) printf("\tItem %3llu: %s\n",
890		    (u_longlong_t)itor - 1, blkbuf);
891	}
892
893	bplist_close(&bpl);
894	mutex_destroy(&bpl.bpl_lock);
895}
896
897static avl_tree_t idx_tree;
898static avl_tree_t domain_tree;
899static boolean_t fuid_table_loaded;
900
901static void
902fuid_table_destroy()
903{
904	if (fuid_table_loaded) {
905		zfs_fuid_table_destroy(&idx_tree, &domain_tree);
906		fuid_table_loaded = B_FALSE;
907	}
908}
909
910/*
911 * print uid or gid information.
912 * For normal POSIX id just the id is printed in decimal format.
913 * For CIFS files with FUID the fuid is printed in hex followed by
914 * the doman-rid string.
915 */
916static void
917print_idstr(uint64_t id, const char *id_type)
918{
919	if (FUID_INDEX(id)) {
920		char *domain;
921
922		domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
923		(void) printf("\t%s     %llx [%s-%d]\n", id_type,
924		    (u_longlong_t)id, domain, (int)FUID_RID(id));
925	} else {
926		(void) printf("\t%s     %llu\n", id_type, (u_longlong_t)id);
927	}
928
929}
930
931static void
932dump_uidgid(objset_t *os, znode_phys_t *zp)
933{
934	uint32_t uid_idx, gid_idx;
935
936	uid_idx = FUID_INDEX(zp->zp_uid);
937	gid_idx = FUID_INDEX(zp->zp_gid);
938
939	/* Load domain table, if not already loaded */
940	if (!fuid_table_loaded && (uid_idx || gid_idx)) {
941		uint64_t fuid_obj;
942
943		/* first find the fuid object.  It lives in the master node */
944		VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
945		    8, 1, &fuid_obj) == 0);
946		zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
947		(void) zfs_fuid_table_load(os, fuid_obj,
948		    &idx_tree, &domain_tree);
949		fuid_table_loaded = B_TRUE;
950	}
951
952	print_idstr(zp->zp_uid, "uid");
953	print_idstr(zp->zp_gid, "gid");
954}
955
956/*ARGSUSED*/
957static void
958dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
959{
960	znode_phys_t *zp = data;
961	time_t z_crtime, z_atime, z_mtime, z_ctime;
962	char path[MAXPATHLEN * 2];	/* allow for xattr and failure prefix */
963	int error;
964
965	ASSERT(size >= sizeof (znode_phys_t));
966
967	error = zfs_obj_to_path(os, object, path, sizeof (path));
968	if (error != 0) {
969		(void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
970		    (u_longlong_t)object);
971	}
972
973	if (dump_opt['d'] < 3) {
974		(void) printf("\t%s\n", path);
975		return;
976	}
977
978	z_crtime = (time_t)zp->zp_crtime[0];
979	z_atime = (time_t)zp->zp_atime[0];
980	z_mtime = (time_t)zp->zp_mtime[0];
981	z_ctime = (time_t)zp->zp_ctime[0];
982
983	(void) printf("\tpath	%s\n", path);
984	dump_uidgid(os, zp);
985	(void) printf("\tatime	%s", ctime(&z_atime));
986	(void) printf("\tmtime	%s", ctime(&z_mtime));
987	(void) printf("\tctime	%s", ctime(&z_ctime));
988	(void) printf("\tcrtime	%s", ctime(&z_crtime));
989	(void) printf("\tgen	%llu\n", (u_longlong_t)zp->zp_gen);
990	(void) printf("\tmode	%llo\n", (u_longlong_t)zp->zp_mode);
991	(void) printf("\tsize	%llu\n", (u_longlong_t)zp->zp_size);
992	(void) printf("\tparent	%llu\n", (u_longlong_t)zp->zp_parent);
993	(void) printf("\tlinks	%llu\n", (u_longlong_t)zp->zp_links);
994	(void) printf("\txattr	%llu\n", (u_longlong_t)zp->zp_xattr);
995	(void) printf("\trdev	0x%016llx\n", (u_longlong_t)zp->zp_rdev);
996}
997
998/*ARGSUSED*/
999static void
1000dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1001{
1002}
1003
1004/*ARGSUSED*/
1005static void
1006dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1007{
1008}
1009
1010static object_viewer_t *object_viewer[DMU_OT_NUMTYPES] = {
1011	dump_none,		/* unallocated			*/
1012	dump_zap,		/* object directory		*/
1013	dump_uint64,		/* object array			*/
1014	dump_none,		/* packed nvlist		*/
1015	dump_packed_nvlist,	/* packed nvlist size		*/
1016	dump_none,		/* bplist			*/
1017	dump_none,		/* bplist header		*/
1018	dump_none,		/* SPA space map header		*/
1019	dump_none,		/* SPA space map		*/
1020	dump_none,		/* ZIL intent log		*/
1021	dump_dnode,		/* DMU dnode			*/
1022	dump_dmu_objset,	/* DMU objset			*/
1023	dump_dsl_dir,		/* DSL directory		*/
1024	dump_zap,		/* DSL directory child map	*/
1025	dump_zap,		/* DSL dataset snap map		*/
1026	dump_zap,		/* DSL props			*/
1027	dump_dsl_dataset,	/* DSL dataset			*/
1028	dump_znode,		/* ZFS znode			*/
1029	dump_acl,		/* ZFS V0 ACL			*/
1030	dump_uint8,		/* ZFS plain file		*/
1031	dump_zpldir,		/* ZFS directory		*/
1032	dump_zap,		/* ZFS master node		*/
1033	dump_zap,		/* ZFS delete queue		*/
1034	dump_uint8,		/* zvol object			*/
1035	dump_zap,		/* zvol prop			*/
1036	dump_uint8,		/* other uint8[]		*/
1037	dump_uint64,		/* other uint64[]		*/
1038	dump_zap,		/* other ZAP			*/
1039	dump_zap,		/* persistent error log		*/
1040	dump_uint8,		/* SPA history			*/
1041	dump_uint64,		/* SPA history offsets		*/
1042	dump_zap,		/* Pool properties		*/
1043	dump_zap,		/* DSL permissions		*/
1044	dump_acl,		/* ZFS ACL			*/
1045	dump_uint8,		/* ZFS SYSACL			*/
1046	dump_none,		/* FUID nvlist			*/
1047	dump_packed_nvlist,	/* FUID nvlist size		*/
1048	dump_zap,		/* DSL dataset next clones	*/
1049	dump_zap,		/* DSL scrub queue		*/
1050	dump_zap,		/* ZFS user/group used		*/
1051	dump_zap,		/* ZFS user/group quota		*/
1052};
1053
1054static void
1055dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1056{
1057	dmu_buf_t *db = NULL;
1058	dmu_object_info_t doi;
1059	dnode_t *dn;
1060	void *bonus = NULL;
1061	size_t bsize = 0;
1062	char iblk[6], dblk[6], lsize[6], asize[6], bonus_size[6], segsize[6];
1063	char aux[50];
1064	int error;
1065
1066	if (*print_header) {
1067		(void) printf("\n    Object  lvl   iblk   dblk  lsize"
1068		    "  asize  type\n");
1069		*print_header = 0;
1070	}
1071
1072	if (object == 0) {
1073		dn = os->os->os_meta_dnode;
1074	} else {
1075		error = dmu_bonus_hold(os, object, FTAG, &db);
1076		if (error)
1077			fatal("dmu_bonus_hold(%llu) failed, errno %u",
1078			    object, error);
1079		bonus = db->db_data;
1080		bsize = db->db_size;
1081		dn = ((dmu_buf_impl_t *)db)->db_dnode;
1082	}
1083	dmu_object_info_from_dnode(dn, &doi);
1084
1085	nicenum(doi.doi_metadata_block_size, iblk);
1086	nicenum(doi.doi_data_block_size, dblk);
1087	nicenum(doi.doi_data_block_size * (doi.doi_max_block_offset + 1),
1088	    lsize);
1089	nicenum(doi.doi_physical_blks << 9, asize);
1090	nicenum(doi.doi_bonus_size, bonus_size);
1091
1092	aux[0] = '\0';
1093
1094	if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1095		(void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1096		    zio_checksum_table[doi.doi_checksum].ci_name);
1097	}
1098
1099	if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1100		(void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1101		    zio_compress_table[doi.doi_compress].ci_name);
1102	}
1103
1104	(void) printf("%10lld  %3u  %5s  %5s  %5s  %5s  %s%s\n",
1105	    (u_longlong_t)object, doi.doi_indirection, iblk, dblk, lsize,
1106	    asize, dmu_ot[doi.doi_type].ot_name, aux);
1107
1108	if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1109		(void) printf("%10s  %3s  %5s  %5s  %5s  %5s  %s\n",
1110		    "", "", "", "", bonus_size, "bonus",
1111		    dmu_ot[doi.doi_bonus_type].ot_name);
1112	}
1113
1114	if (verbosity >= 4) {
1115		(void) printf("\tdnode flags: %s%s\n",
1116		    (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1117		    "USED_BYTES " : "",
1118		    (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1119		    "USERUSED_ACCOUNTED " : "");
1120		(void) printf("\tdnode maxblkid: %llu\n",
1121		    (longlong_t)dn->dn_phys->dn_maxblkid);
1122
1123		object_viewer[doi.doi_bonus_type](os, object, bonus, bsize);
1124		object_viewer[doi.doi_type](os, object, NULL, 0);
1125		*print_header = 1;
1126	}
1127
1128	if (verbosity >= 5)
1129		dump_indirect(dn);
1130
1131	if (verbosity >= 5) {
1132		/*
1133		 * Report the list of segments that comprise the object.
1134		 */
1135		uint64_t start = 0;
1136		uint64_t end;
1137		uint64_t blkfill = 1;
1138		int minlvl = 1;
1139
1140		if (dn->dn_type == DMU_OT_DNODE) {
1141			minlvl = 0;
1142			blkfill = DNODES_PER_BLOCK;
1143		}
1144
1145		for (;;) {
1146			error = dnode_next_offset(dn,
1147			    0, &start, minlvl, blkfill, 0);
1148			if (error)
1149				break;
1150			end = start;
1151			error = dnode_next_offset(dn,
1152			    DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1153			nicenum(end - start, segsize);
1154			(void) printf("\t\tsegment [%016llx, %016llx)"
1155			    " size %5s\n", (u_longlong_t)start,
1156			    (u_longlong_t)end, segsize);
1157			if (error)
1158				break;
1159			start = end;
1160		}
1161	}
1162
1163	if (db != NULL)
1164		dmu_buf_rele(db, FTAG);
1165}
1166
1167static char *objset_types[DMU_OST_NUMTYPES] = {
1168	"NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1169
1170static void
1171dump_dir(objset_t *os)
1172{
1173	dmu_objset_stats_t dds;
1174	uint64_t object, object_count;
1175	uint64_t refdbytes, usedobjs, scratch;
1176	char numbuf[8];
1177	char blkbuf[BP_SPRINTF_LEN + 20];
1178	char osname[MAXNAMELEN];
1179	char *type = "UNKNOWN";
1180	int verbosity = dump_opt['d'];
1181	int print_header = 1;
1182	int i, error;
1183
1184	dmu_objset_fast_stat(os, &dds);
1185
1186	if (dds.dds_type < DMU_OST_NUMTYPES)
1187		type = objset_types[dds.dds_type];
1188
1189	if (dds.dds_type == DMU_OST_META) {
1190		dds.dds_creation_txg = TXG_INITIAL;
1191		usedobjs = os->os->os_rootbp->blk_fill;
1192		refdbytes = os->os->os_spa->spa_dsl_pool->
1193		    dp_mos_dir->dd_phys->dd_used_bytes;
1194	} else {
1195		dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1196	}
1197
1198	ASSERT3U(usedobjs, ==, os->os->os_rootbp->blk_fill);
1199
1200	nicenum(refdbytes, numbuf);
1201
1202	if (verbosity >= 4) {
1203		(void) sprintf(blkbuf + strlen(blkbuf), ", rootbp ");
1204		(void) sprintf_blkptr(blkbuf + strlen(blkbuf),
1205		    BP_SPRINTF_LEN - strlen(blkbuf), os->os->os_rootbp);
1206	} else {
1207		blkbuf[0] = '\0';
1208	}
1209
1210	dmu_objset_name(os, osname);
1211
1212	(void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1213	    "%s, %llu objects%s\n",
1214	    osname, type, (u_longlong_t)dmu_objset_id(os),
1215	    (u_longlong_t)dds.dds_creation_txg,
1216	    numbuf, (u_longlong_t)usedobjs, blkbuf);
1217
1218	dump_intent_log(dmu_objset_zil(os));
1219
1220	if (dmu_objset_ds(os) != NULL)
1221		dump_bplist(dmu_objset_pool(os)->dp_meta_objset,
1222		    dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist");
1223
1224	if (verbosity < 2)
1225		return;
1226
1227	if (os->os->os_rootbp->blk_birth == 0)
1228		return;
1229
1230	if (zopt_objects != 0) {
1231		for (i = 0; i < zopt_objects; i++)
1232			dump_object(os, zopt_object[i], verbosity,
1233			    &print_header);
1234		(void) printf("\n");
1235		return;
1236	}
1237
1238	dump_object(os, 0, verbosity, &print_header);
1239	object_count = 0;
1240	if (os->os->os_userused_dnode &&
1241	    os->os->os_userused_dnode->dn_type != 0) {
1242		dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1243		dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1244	}
1245
1246	object = 0;
1247	while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1248		dump_object(os, object, verbosity, &print_header);
1249		object_count++;
1250	}
1251
1252	ASSERT3U(object_count, ==, usedobjs);
1253
1254	(void) printf("\n");
1255
1256	if (error != ESRCH) {
1257		(void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1258		abort();
1259	}
1260}
1261
1262static void
1263dump_uberblock(uberblock_t *ub)
1264{
1265	time_t timestamp = ub->ub_timestamp;
1266
1267	(void) printf("Uberblock\n\n");
1268	(void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1269	(void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1270	(void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1271	(void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1272	(void) printf("\ttimestamp = %llu UTC = %s",
1273	    (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
1274	if (dump_opt['u'] >= 3) {
1275		char blkbuf[BP_SPRINTF_LEN];
1276		sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ub->ub_rootbp);
1277		(void) printf("\trootbp = %s\n", blkbuf);
1278	}
1279	(void) printf("\n");
1280}
1281
1282static void
1283dump_config(const char *pool)
1284{
1285	spa_t *spa = NULL;
1286
1287	mutex_enter(&spa_namespace_lock);
1288	while ((spa = spa_next(spa)) != NULL) {
1289		if (pool == NULL)
1290			(void) printf("%s\n", spa_name(spa));
1291		if (pool == NULL || strcmp(pool, spa_name(spa)) == 0)
1292			dump_nvlist(spa->spa_config, 4);
1293	}
1294	mutex_exit(&spa_namespace_lock);
1295}
1296
1297static void
1298dump_cachefile(const char *cachefile)
1299{
1300	int fd;
1301	struct stat64 statbuf;
1302	char *buf;
1303	nvlist_t *config;
1304
1305	if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1306		(void) printf("cannot open '%s': %s\n", cachefile,
1307		    strerror(errno));
1308		exit(1);
1309	}
1310
1311	if (fstat64(fd, &statbuf) != 0) {
1312		(void) printf("failed to stat '%s': %s\n", cachefile,
1313		    strerror(errno));
1314		exit(1);
1315	}
1316
1317	if ((buf = malloc(statbuf.st_size)) == NULL) {
1318		(void) fprintf(stderr, "failed to allocate %llu bytes\n",
1319		    (u_longlong_t)statbuf.st_size);
1320		exit(1);
1321	}
1322
1323	if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1324		(void) fprintf(stderr, "failed to read %llu bytes\n",
1325		    (u_longlong_t)statbuf.st_size);
1326		exit(1);
1327	}
1328
1329	(void) close(fd);
1330
1331	if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
1332		(void) fprintf(stderr, "failed to unpack nvlist\n");
1333		exit(1);
1334	}
1335
1336	free(buf);
1337
1338	dump_nvlist(config, 0);
1339
1340	nvlist_free(config);
1341}
1342
1343static void
1344dump_label(const char *dev)
1345{
1346	int fd;
1347	vdev_label_t label;
1348	char *buf = label.vl_vdev_phys.vp_nvlist;
1349	size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
1350	struct stat64 statbuf;
1351	uint64_t psize;
1352	int l;
1353
1354	if ((fd = open64(dev, O_RDONLY)) < 0) {
1355		(void) printf("cannot open '%s': %s\n", dev, strerror(errno));
1356		exit(1);
1357	}
1358
1359	if (fstat64(fd, &statbuf) != 0) {
1360		(void) printf("failed to stat '%s': %s\n", dev,
1361		    strerror(errno));
1362		exit(1);
1363	}
1364
1365	psize = statbuf.st_size;
1366	psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
1367
1368	for (l = 0; l < VDEV_LABELS; l++) {
1369
1370		nvlist_t *config = NULL;
1371
1372		(void) printf("--------------------------------------------\n");
1373		(void) printf("LABEL %d\n", l);
1374		(void) printf("--------------------------------------------\n");
1375
1376		if (pread64(fd, &label, sizeof (label),
1377		    vdev_label_offset(psize, l, 0)) != sizeof (label)) {
1378			(void) printf("failed to read label %d\n", l);
1379			continue;
1380		}
1381
1382		if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
1383			(void) printf("failed to unpack label %d\n", l);
1384			continue;
1385		}
1386		dump_nvlist(config, 4);
1387		nvlist_free(config);
1388	}
1389}
1390
1391/*ARGSUSED*/
1392static int
1393dump_one_dir(char *dsname, void *arg)
1394{
1395	int error;
1396	objset_t *os;
1397
1398	error = dmu_objset_open(dsname, DMU_OST_ANY,
1399	    DS_MODE_USER | DS_MODE_READONLY, &os);
1400	if (error) {
1401		(void) printf("Could not open %s\n", dsname);
1402		return (0);
1403	}
1404	dump_dir(os);
1405	dmu_objset_close(os);
1406	fuid_table_destroy();
1407	return (0);
1408}
1409
1410static void
1411zdb_leak(space_map_t *sm, uint64_t start, uint64_t size)
1412{
1413	vdev_t *vd = sm->sm_ppd;
1414
1415	(void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
1416	    (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
1417}
1418
1419/* ARGSUSED */
1420static void
1421zdb_space_map_load(space_map_t *sm)
1422{
1423}
1424
1425static void
1426zdb_space_map_unload(space_map_t *sm)
1427{
1428	space_map_vacate(sm, zdb_leak, sm);
1429}
1430
1431/* ARGSUSED */
1432static void
1433zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size)
1434{
1435}
1436
1437static space_map_ops_t zdb_space_map_ops = {
1438	zdb_space_map_load,
1439	zdb_space_map_unload,
1440	NULL,	/* alloc */
1441	zdb_space_map_claim,
1442	NULL,	/* free */
1443	NULL	/* maxsize */
1444};
1445
1446static void
1447zdb_leak_init(spa_t *spa)
1448{
1449	vdev_t *rvd = spa->spa_root_vdev;
1450
1451	for (int c = 0; c < rvd->vdev_children; c++) {
1452		vdev_t *vd = rvd->vdev_child[c];
1453		for (int m = 0; m < vd->vdev_ms_count; m++) {
1454			metaslab_t *msp = vd->vdev_ms[m];
1455			mutex_enter(&msp->ms_lock);
1456			VERIFY(space_map_load(&msp->ms_map, &zdb_space_map_ops,
1457			    SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset) == 0);
1458			msp->ms_map.sm_ppd = vd;
1459			mutex_exit(&msp->ms_lock);
1460		}
1461	}
1462}
1463
1464static void
1465zdb_leak_fini(spa_t *spa)
1466{
1467	vdev_t *rvd = spa->spa_root_vdev;
1468
1469	for (int c = 0; c < rvd->vdev_children; c++) {
1470		vdev_t *vd = rvd->vdev_child[c];
1471		for (int m = 0; m < vd->vdev_ms_count; m++) {
1472			metaslab_t *msp = vd->vdev_ms[m];
1473			mutex_enter(&msp->ms_lock);
1474			space_map_unload(&msp->ms_map);
1475			mutex_exit(&msp->ms_lock);
1476		}
1477	}
1478}
1479
1480/*
1481 * Verify that the sum of the sizes of all blocks in the pool adds up
1482 * to the SPA's sa_alloc total.
1483 */
1484typedef struct zdb_blkstats {
1485	uint64_t	zb_asize;
1486	uint64_t	zb_lsize;
1487	uint64_t	zb_psize;
1488	uint64_t	zb_count;
1489} zdb_blkstats_t;
1490
1491#define	DMU_OT_DEFERRED	DMU_OT_NONE
1492#define	DMU_OT_TOTAL	DMU_OT_NUMTYPES
1493
1494#define	ZB_TOTAL	DN_MAX_LEVELS
1495
1496typedef struct zdb_cb {
1497	zdb_blkstats_t	zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1];
1498	uint64_t	zcb_errors[256];
1499	int		zcb_readfails;
1500	int		zcb_haderrors;
1501} zdb_cb_t;
1502
1503static void
1504zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, dmu_object_type_t type)
1505{
1506	for (int i = 0; i < 4; i++) {
1507		int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
1508		int t = (i & 1) ? type : DMU_OT_TOTAL;
1509		zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
1510
1511		zb->zb_asize += BP_GET_ASIZE(bp);
1512		zb->zb_lsize += BP_GET_LSIZE(bp);
1513		zb->zb_psize += BP_GET_PSIZE(bp);
1514		zb->zb_count++;
1515	}
1516
1517	if (dump_opt['S']) {
1518		boolean_t print_sig;
1519
1520		print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 &&
1521		    BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS);
1522
1523		if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg)
1524			print_sig = B_FALSE;
1525
1526		if (print_sig) {
1527			(void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t"
1528			    "%llx:%llx:%llx:%llx\n",
1529			    (u_longlong_t)BP_GET_LEVEL(bp),
1530			    (longlong_t)BP_GET_PSIZE(bp),
1531			    (longlong_t)BP_GET_NDVAS(bp),
1532			    dmu_ot[BP_GET_TYPE(bp)].ot_name,
1533			    zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name,
1534			    zio_compress_table[BP_GET_COMPRESS(bp)].ci_name,
1535			    (u_longlong_t)bp->blk_cksum.zc_word[0],
1536			    (u_longlong_t)bp->blk_cksum.zc_word[1],
1537			    (u_longlong_t)bp->blk_cksum.zc_word[2],
1538			    (u_longlong_t)bp->blk_cksum.zc_word[3]);
1539		}
1540	}
1541
1542	if (!dump_opt['L'])
1543		VERIFY(zio_wait(zio_claim(NULL, spa, spa_first_txg(spa), bp,
1544		    NULL, NULL, ZIO_FLAG_MUSTSUCCEED)) == 0);
1545}
1546
1547static int
1548zdb_blkptr_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb,
1549    const dnode_phys_t *dnp, void *arg)
1550{
1551	zdb_cb_t *zcb = arg;
1552	char blkbuf[BP_SPRINTF_LEN];
1553	dmu_object_type_t type;
1554	boolean_t is_l0_metadata;
1555
1556	if (bp == NULL)
1557		return (0);
1558
1559	type = BP_GET_TYPE(bp);
1560
1561	zdb_count_block(spa, zcb, bp, type);
1562
1563	/*
1564	 * if we do metadata-only checksumming there's no need to checksum
1565	 * indirect blocks here because it is done during traverse
1566	 */
1567	is_l0_metadata = (BP_GET_LEVEL(bp) == 0 && type < DMU_OT_NUMTYPES &&
1568	    dmu_ot[type].ot_metadata);
1569
1570	if (dump_opt['c'] > 1 || dump_opt['S'] ||
1571	    (dump_opt['c'] && is_l0_metadata)) {
1572		int ioerr, size;
1573		void *data;
1574
1575		size = BP_GET_LSIZE(bp);
1576		data = malloc(size);
1577		ioerr = zio_wait(zio_read(NULL, spa, bp, data, size,
1578		    NULL, NULL, ZIO_PRIORITY_ASYNC_READ,
1579		    ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB, zb));
1580		free(data);
1581
1582		/* We expect io errors on intent log */
1583		if (ioerr && type != DMU_OT_INTENT_LOG) {
1584			zcb->zcb_haderrors = 1;
1585			zcb->zcb_errors[ioerr]++;
1586
1587			if (dump_opt['b'] >= 2)
1588				sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp);
1589			else
1590				blkbuf[0] = '\0';
1591
1592			if (!dump_opt['S']) {
1593				(void) printf("zdb_blkptr_cb: "
1594				    "Got error %d reading "
1595				    "<%llu, %llu, %lld, %llx> %s -- skipping\n",
1596				    ioerr,
1597				    (u_longlong_t)zb->zb_objset,
1598				    (u_longlong_t)zb->zb_object,
1599				    (u_longlong_t)zb->zb_level,
1600				    (u_longlong_t)zb->zb_blkid,
1601				    blkbuf);
1602			}
1603		}
1604	}
1605
1606	zcb->zcb_readfails = 0;
1607
1608	if (dump_opt['b'] >= 4) {
1609		sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp);
1610		(void) printf("objset %llu object %llu offset 0x%llx %s\n",
1611		    (u_longlong_t)zb->zb_objset,
1612		    (u_longlong_t)zb->zb_object,
1613		    (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid),
1614		    blkbuf);
1615	}
1616
1617	return (0);
1618}
1619
1620static int
1621dump_block_stats(spa_t *spa)
1622{
1623	zdb_cb_t zcb = { 0 };
1624	zdb_blkstats_t *zb, *tzb;
1625	uint64_t alloc, space, logalloc;
1626	vdev_t *rvd = spa->spa_root_vdev;
1627	int leaks = 0;
1628	int c, e;
1629
1630	if (!dump_opt['S']) {
1631		(void) printf("\nTraversing all blocks %s%s%s%s%s...\n",
1632		    (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
1633		    (dump_opt['c'] == 1) ? "metadata " : "",
1634		    dump_opt['c'] ? "checksums " : "",
1635		    (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
1636		    !dump_opt['L'] ? "nothing leaked " : "");
1637	}
1638
1639	/*
1640	 * Load all space maps as SM_ALLOC maps, then traverse the pool
1641	 * claiming each block we discover.  If the pool is perfectly
1642	 * consistent, the space maps will be empty when we're done.
1643	 * Anything left over is a leak; any block we can't claim (because
1644	 * it's not part of any space map) is a double allocation,
1645	 * reference to a freed block, or an unclaimed log block.
1646	 */
1647	if (!dump_opt['L'])
1648		zdb_leak_init(spa);
1649
1650	/*
1651	 * If there's a deferred-free bplist, process that first.
1652	 */
1653	if (spa->spa_sync_bplist_obj != 0) {
1654		bplist_t *bpl = &spa->spa_sync_bplist;
1655		blkptr_t blk;
1656		uint64_t itor = 0;
1657
1658		VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset,
1659		    spa->spa_sync_bplist_obj));
1660
1661		while (bplist_iterate(bpl, &itor, &blk) == 0) {
1662			if (dump_opt['b'] >= 4) {
1663				char blkbuf[BP_SPRINTF_LEN];
1664				sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk);
1665				(void) printf("[%s] %s\n",
1666				    "deferred free", blkbuf);
1667			}
1668			zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED);
1669		}
1670
1671		bplist_close(bpl);
1672	}
1673
1674	zcb.zcb_haderrors |= traverse_pool(spa, zdb_blkptr_cb, &zcb);
1675
1676	if (zcb.zcb_haderrors && !dump_opt['S']) {
1677		(void) printf("\nError counts:\n\n");
1678		(void) printf("\t%5s  %s\n", "errno", "count");
1679		for (e = 0; e < 256; e++) {
1680			if (zcb.zcb_errors[e] != 0) {
1681				(void) printf("\t%5d  %llu\n",
1682				    e, (u_longlong_t)zcb.zcb_errors[e]);
1683			}
1684		}
1685	}
1686
1687	/*
1688	 * Report any leaked segments.
1689	 */
1690	if (!dump_opt['L'])
1691		zdb_leak_fini(spa);
1692
1693	/*
1694	 * If we're interested in printing out the blkptr signatures,
1695	 * return now as we don't print out anything else (including
1696	 * errors and leaks).
1697	 */
1698	if (dump_opt['S'])
1699		return (zcb.zcb_haderrors ? 3 : 0);
1700
1701	alloc = spa_get_alloc(spa);
1702	space = spa_get_space(spa);
1703
1704	/*
1705	 * Log blocks allocated from a separate log device don't count
1706	 * as part of the normal pool space; factor them in here.
1707	 */
1708	logalloc = 0;
1709
1710	for (c = 0; c < rvd->vdev_children; c++)
1711		if (rvd->vdev_child[c]->vdev_islog)
1712			logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc;
1713
1714	tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL];
1715
1716	if (tzb->zb_asize == alloc + logalloc) {
1717		if (!dump_opt['L'])
1718			(void) printf("\n\tNo leaks (block sum matches space"
1719			    " maps exactly)\n");
1720	} else {
1721		(void) printf("block traversal size %llu != alloc %llu "
1722		    "(%s %lld)\n",
1723		    (u_longlong_t)tzb->zb_asize,
1724		    (u_longlong_t)alloc + logalloc,
1725		    (dump_opt['L']) ? "unreachable" : "leaked",
1726		    (longlong_t)(alloc + logalloc - tzb->zb_asize));
1727		leaks = 1;
1728	}
1729
1730	if (tzb->zb_count == 0)
1731		return (2);
1732
1733	(void) printf("\n");
1734	(void) printf("\tbp count:      %10llu\n",
1735	    (u_longlong_t)tzb->zb_count);
1736	(void) printf("\tbp logical:    %10llu\t avg: %6llu\n",
1737	    (u_longlong_t)tzb->zb_lsize,
1738	    (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
1739	(void) printf("\tbp physical:   %10llu\t avg:"
1740	    " %6llu\tcompression: %6.2f\n",
1741	    (u_longlong_t)tzb->zb_psize,
1742	    (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
1743	    (double)tzb->zb_lsize / tzb->zb_psize);
1744	(void) printf("\tbp allocated:  %10llu\t avg:"
1745	    " %6llu\tcompression: %6.2f\n",
1746	    (u_longlong_t)tzb->zb_asize,
1747	    (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
1748	    (double)tzb->zb_lsize / tzb->zb_asize);
1749	(void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n",
1750	    (u_longlong_t)alloc, 100.0 * alloc / space);
1751
1752	if (dump_opt['b'] >= 2) {
1753		int l, t, level;
1754		(void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
1755		    "\t  avg\t comp\t%%Total\tType\n");
1756
1757		for (t = 0; t <= DMU_OT_NUMTYPES; t++) {
1758			char csize[6], lsize[6], psize[6], asize[6], avg[6];
1759			char *typename;
1760
1761			typename = t == DMU_OT_DEFERRED ? "deferred free" :
1762			    t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name;
1763
1764			if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
1765				(void) printf("%6s\t%5s\t%5s\t%5s"
1766				    "\t%5s\t%5s\t%6s\t%s\n",
1767				    "-",
1768				    "-",
1769				    "-",
1770				    "-",
1771				    "-",
1772				    "-",
1773				    "-",
1774				    typename);
1775				continue;
1776			}
1777
1778			for (l = ZB_TOTAL - 1; l >= -1; l--) {
1779				level = (l == -1 ? ZB_TOTAL : l);
1780				zb = &zcb.zcb_type[level][t];
1781
1782				if (zb->zb_asize == 0)
1783					continue;
1784
1785				if (dump_opt['b'] < 3 && level != ZB_TOTAL)
1786					continue;
1787
1788				if (level == 0 && zb->zb_asize ==
1789				    zcb.zcb_type[ZB_TOTAL][t].zb_asize)
1790					continue;
1791
1792				nicenum(zb->zb_count, csize);
1793				nicenum(zb->zb_lsize, lsize);
1794				nicenum(zb->zb_psize, psize);
1795				nicenum(zb->zb_asize, asize);
1796				nicenum(zb->zb_asize / zb->zb_count, avg);
1797
1798				(void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
1799				    "\t%5.2f\t%6.2f\t",
1800				    csize, lsize, psize, asize, avg,
1801				    (double)zb->zb_lsize / zb->zb_psize,
1802				    100.0 * zb->zb_asize / tzb->zb_asize);
1803
1804				if (level == ZB_TOTAL)
1805					(void) printf("%s\n", typename);
1806				else
1807					(void) printf("    L%d %s\n",
1808					    level, typename);
1809			}
1810		}
1811	}
1812
1813	(void) printf("\n");
1814
1815	if (leaks)
1816		return (2);
1817
1818	if (zcb.zcb_haderrors)
1819		return (3);
1820
1821	return (0);
1822}
1823
1824static void
1825dump_zpool(spa_t *spa)
1826{
1827	dsl_pool_t *dp = spa_get_dsl(spa);
1828	int rc = 0;
1829
1830	if (dump_opt['u'])
1831		dump_uberblock(&spa->spa_uberblock);
1832
1833	if (dump_opt['d'] || dump_opt['i'] || dump_opt['m']) {
1834		dump_dir(dp->dp_meta_objset);
1835		if (dump_opt['d'] >= 3) {
1836			dump_bplist(dp->dp_meta_objset,
1837			    spa->spa_sync_bplist_obj, "Deferred frees");
1838			dump_dtl(spa->spa_root_vdev, 0);
1839		}
1840
1841		if (dump_opt['d'] >= 3 || dump_opt['m'])
1842			dump_metaslabs(spa);
1843
1844		(void) dmu_objset_find(spa_name(spa), dump_one_dir, NULL,
1845		    DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
1846	}
1847
1848	if (dump_opt['b'] || dump_opt['c'] || dump_opt['S'])
1849		rc = dump_block_stats(spa);
1850
1851	if (dump_opt['s'])
1852		show_pool_stats(spa);
1853
1854	if (rc != 0)
1855		exit(rc);
1856}
1857
1858#define	ZDB_FLAG_CHECKSUM	0x0001
1859#define	ZDB_FLAG_DECOMPRESS	0x0002
1860#define	ZDB_FLAG_BSWAP		0x0004
1861#define	ZDB_FLAG_GBH		0x0008
1862#define	ZDB_FLAG_INDIRECT	0x0010
1863#define	ZDB_FLAG_PHYS		0x0020
1864#define	ZDB_FLAG_RAW		0x0040
1865#define	ZDB_FLAG_PRINT_BLKPTR	0x0080
1866
1867int flagbits[256];
1868
1869static void
1870zdb_print_blkptr(blkptr_t *bp, int flags)
1871{
1872	dva_t *dva = bp->blk_dva;
1873	int d;
1874
1875	if (flags & ZDB_FLAG_BSWAP)
1876		byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
1877	/*
1878	 * Super-ick warning:  This code is also duplicated in
1879	 * cmd/mdb/common/modules/zfs/zfs.c .  Yeah, I hate code
1880	 * replication, too.
1881	 */
1882	for (d = 0; d < BP_GET_NDVAS(bp); d++) {
1883		(void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d,
1884		    (longlong_t)DVA_GET_VDEV(&dva[d]),
1885		    (longlong_t)DVA_GET_OFFSET(&dva[d]));
1886		(void) printf("\tDVA[%d]:       GANG: %-5s  GRID:  %04llx\t"
1887		    "ASIZE: %llx\n", d,
1888		    DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE",
1889		    (longlong_t)DVA_GET_GRID(&dva[d]),
1890		    (longlong_t)DVA_GET_ASIZE(&dva[d]));
1891		(void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d,
1892		    (u_longlong_t)DVA_GET_VDEV(&dva[d]),
1893		    (longlong_t)DVA_GET_OFFSET(&dva[d]),
1894		    (longlong_t)BP_GET_PSIZE(bp),
1895		    BP_SHOULD_BYTESWAP(bp) ? "e" : "",
1896		    !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ?
1897		    "d" : "",
1898		    DVA_GET_GANG(&dva[d]) ? "g" : "",
1899		    BP_GET_COMPRESS(bp) != 0 ? "d" : "");
1900	}
1901	(void) printf("\tLSIZE:  %-16llx\t\tPSIZE: %llx\n",
1902	    (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp));
1903	(void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE:  %s\n",
1904	    BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG",
1905	    dmu_ot[BP_GET_TYPE(bp)].ot_name);
1906	(void) printf("\tBIRTH:  %-16llx   LEVEL: %-2llu\tFILL:  %llx\n",
1907	    (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp),
1908	    (u_longlong_t)bp->blk_fill);
1909	(void) printf("\tCKFUNC: %-16s\t\tCOMP:  %s\n",
1910	    zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name,
1911	    zio_compress_table[BP_GET_COMPRESS(bp)].ci_name);
1912	(void) printf("\tCKSUM:  %llx:%llx:%llx:%llx\n",
1913	    (u_longlong_t)bp->blk_cksum.zc_word[0],
1914	    (u_longlong_t)bp->blk_cksum.zc_word[1],
1915	    (u_longlong_t)bp->blk_cksum.zc_word[2],
1916	    (u_longlong_t)bp->blk_cksum.zc_word[3]);
1917}
1918
1919static void
1920zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
1921{
1922	int i;
1923
1924	for (i = 0; i < nbps; i++)
1925		zdb_print_blkptr(&bp[i], flags);
1926}
1927
1928static void
1929zdb_dump_gbh(void *buf, int flags)
1930{
1931	zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
1932}
1933
1934static void
1935zdb_dump_block_raw(void *buf, uint64_t size, int flags)
1936{
1937	if (flags & ZDB_FLAG_BSWAP)
1938		byteswap_uint64_array(buf, size);
1939	(void) write(2, buf, size);
1940}
1941
1942static void
1943zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
1944{
1945	uint64_t *d = (uint64_t *)buf;
1946	int nwords = size / sizeof (uint64_t);
1947	int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
1948	int i, j;
1949	char *hdr, *c;
1950
1951
1952	if (do_bswap)
1953		hdr = " 7 6 5 4 3 2 1 0   f e d c b a 9 8";
1954	else
1955		hdr = " 0 1 2 3 4 5 6 7   8 9 a b c d e f";
1956
1957	(void) printf("\n%s\n%6s   %s  0123456789abcdef\n", label, "", hdr);
1958
1959	for (i = 0; i < nwords; i += 2) {
1960		(void) printf("%06llx:  %016llx  %016llx  ",
1961		    (u_longlong_t)(i * sizeof (uint64_t)),
1962		    (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
1963		    (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
1964
1965		c = (char *)&d[i];
1966		for (j = 0; j < 2 * sizeof (uint64_t); j++)
1967			(void) printf("%c", isprint(c[j]) ? c[j] : '.');
1968		(void) printf("\n");
1969	}
1970}
1971
1972/*
1973 * There are two acceptable formats:
1974 *	leaf_name	  - For example: c1t0d0 or /tmp/ztest.0a
1975 *	child[.child]*    - For example: 0.1.1
1976 *
1977 * The second form can be used to specify arbitrary vdevs anywhere
1978 * in the heirarchy.  For example, in a pool with a mirror of
1979 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
1980 */
1981static vdev_t *
1982zdb_vdev_lookup(vdev_t *vdev, char *path)
1983{
1984	char *s, *p, *q;
1985	int i;
1986
1987	if (vdev == NULL)
1988		return (NULL);
1989
1990	/* First, assume the x.x.x.x format */
1991	i = (int)strtoul(path, &s, 10);
1992	if (s == path || (s && *s != '.' && *s != '\0'))
1993		goto name;
1994	if (i < 0 || i >= vdev->vdev_children)
1995		return (NULL);
1996
1997	vdev = vdev->vdev_child[i];
1998	if (*s == '\0')
1999		return (vdev);
2000	return (zdb_vdev_lookup(vdev, s+1));
2001
2002name:
2003	for (i = 0; i < vdev->vdev_children; i++) {
2004		vdev_t *vc = vdev->vdev_child[i];
2005
2006		if (vc->vdev_path == NULL) {
2007			vc = zdb_vdev_lookup(vc, path);
2008			if (vc == NULL)
2009				continue;
2010			else
2011				return (vc);
2012		}
2013
2014		p = strrchr(vc->vdev_path, '/');
2015		p = p ? p + 1 : vc->vdev_path;
2016		q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
2017
2018		if (strcmp(vc->vdev_path, path) == 0)
2019			return (vc);
2020		if (strcmp(p, path) == 0)
2021			return (vc);
2022		if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
2023			return (vc);
2024	}
2025
2026	return (NULL);
2027}
2028
2029/*
2030 * Read a block from a pool and print it out.  The syntax of the
2031 * block descriptor is:
2032 *
2033 *	pool:vdev_specifier:offset:size[:flags]
2034 *
2035 *	pool           - The name of the pool you wish to read from
2036 *	vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
2037 *	offset         - offset, in hex, in bytes
2038 *	size           - Amount of data to read, in hex, in bytes
2039 *	flags          - A string of characters specifying options
2040 *		 b: Decode a blkptr at given offset within block
2041 *		*c: Calculate and display checksums
2042 *		*d: Decompress data before dumping
2043 *		 e: Byteswap data before dumping
2044 *		*g: Display data as a gang block header
2045 *		*i: Display as an indirect block
2046 *		 p: Do I/O to physical offset
2047 *		 r: Dump raw data to stdout
2048 *
2049 *              * = not yet implemented
2050 */
2051static void
2052zdb_read_block(char *thing, spa_t **spap)
2053{
2054	spa_t *spa = *spap;
2055	int flags = 0;
2056	uint64_t offset = 0, size = 0, blkptr_offset = 0;
2057	zio_t *zio;
2058	vdev_t *vd;
2059	void *buf;
2060	char *s, *p, *dup, *pool, *vdev, *flagstr;
2061	int i, error, zio_flags;
2062
2063	dup = strdup(thing);
2064	s = strtok(dup, ":");
2065	pool = s ? s : "";
2066	s = strtok(NULL, ":");
2067	vdev = s ? s : "";
2068	s = strtok(NULL, ":");
2069	offset = strtoull(s ? s : "", NULL, 16);
2070	s = strtok(NULL, ":");
2071	size = strtoull(s ? s : "", NULL, 16);
2072	s = strtok(NULL, ":");
2073	flagstr = s ? s : "";
2074
2075	s = NULL;
2076	if (size == 0)
2077		s = "size must not be zero";
2078	if (!IS_P2ALIGNED(size, DEV_BSIZE))
2079		s = "size must be a multiple of sector size";
2080	if (!IS_P2ALIGNED(offset, DEV_BSIZE))
2081		s = "offset must be a multiple of sector size";
2082	if (s) {
2083		(void) printf("Invalid block specifier: %s  - %s\n", thing, s);
2084		free(dup);
2085		return;
2086	}
2087
2088	for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
2089		for (i = 0; flagstr[i]; i++) {
2090			int bit = flagbits[(uchar_t)flagstr[i]];
2091
2092			if (bit == 0) {
2093				(void) printf("***Invalid flag: %c\n",
2094				    flagstr[i]);
2095				continue;
2096			}
2097			flags |= bit;
2098
2099			/* If it's not something with an argument, keep going */
2100			if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS |
2101			    ZDB_FLAG_PRINT_BLKPTR)) == 0)
2102				continue;
2103
2104			p = &flagstr[i + 1];
2105			if (bit == ZDB_FLAG_PRINT_BLKPTR)
2106				blkptr_offset = strtoull(p, &p, 16);
2107			if (*p != ':' && *p != '\0') {
2108				(void) printf("***Invalid flag arg: '%s'\n", s);
2109				free(dup);
2110				return;
2111			}
2112		}
2113	}
2114
2115	if (spa == NULL || strcmp(spa_name(spa), pool) != 0) {
2116		if (spa)
2117			spa_close(spa, (void *)zdb_read_block);
2118		error = spa_open(pool, spap, (void *)zdb_read_block);
2119		if (error)
2120			fatal("Failed to open pool '%s': %s",
2121			    pool, strerror(error));
2122		spa = *spap;
2123	}
2124
2125	vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
2126	if (vd == NULL) {
2127		(void) printf("***Invalid vdev: %s\n", vdev);
2128		free(dup);
2129		return;
2130	} else {
2131		if (vd->vdev_path)
2132			(void) printf("Found vdev: %s\n", vd->vdev_path);
2133		else
2134			(void) printf("Found vdev type: %s\n",
2135			    vd->vdev_ops->vdev_op_type);
2136	}
2137
2138	buf = umem_alloc(size, UMEM_NOFAIL);
2139
2140	zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
2141	    ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY;
2142
2143	spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
2144	zio = zio_root(spa, NULL, NULL, 0);
2145	/* XXX todo - cons up a BP so RAID-Z will be happy */
2146	zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size,
2147	    ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL));
2148	error = zio_wait(zio);
2149	spa_config_exit(spa, SCL_STATE, FTAG);
2150
2151	if (error) {
2152		(void) printf("Read of %s failed, error: %d\n", thing, error);
2153		goto out;
2154	}
2155
2156	if (flags & ZDB_FLAG_PRINT_BLKPTR)
2157		zdb_print_blkptr((blkptr_t *)(void *)
2158		    ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
2159	else if (flags & ZDB_FLAG_RAW)
2160		zdb_dump_block_raw(buf, size, flags);
2161	else if (flags & ZDB_FLAG_INDIRECT)
2162		zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
2163		    flags);
2164	else if (flags & ZDB_FLAG_GBH)
2165		zdb_dump_gbh(buf, flags);
2166	else
2167		zdb_dump_block(thing, buf, size, flags);
2168
2169out:
2170	umem_free(buf, size);
2171	free(dup);
2172}
2173
2174static boolean_t
2175nvlist_string_match(nvlist_t *config, char *name, char *tgt)
2176{
2177	char *s;
2178
2179	if (nvlist_lookup_string(config, name, &s) != 0)
2180		return (B_FALSE);
2181
2182	return (strcmp(s, tgt) == 0);
2183}
2184
2185static boolean_t
2186nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt)
2187{
2188	uint64_t val;
2189
2190	if (nvlist_lookup_uint64(config, name, &val) != 0)
2191		return (B_FALSE);
2192
2193	return (val == tgt);
2194}
2195
2196static boolean_t
2197vdev_child_guid_match(nvlist_t *vdev, uint64_t guid)
2198{
2199	nvlist_t **child;
2200	uint_t c, children;
2201
2202	verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN,
2203	    &child, &children) == 0);
2204	for (c = 0; c < children; ++c)
2205		if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid))
2206			return (B_TRUE);
2207	return (B_FALSE);
2208}
2209
2210static boolean_t
2211vdev_child_string_match(nvlist_t *vdev, char *tgt)
2212{
2213	nvlist_t **child;
2214	uint_t c, children;
2215
2216	verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN,
2217	    &child, &children) == 0);
2218	for (c = 0; c < children; ++c) {
2219		if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) ||
2220		    nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt))
2221			return (B_TRUE);
2222	}
2223	return (B_FALSE);
2224}
2225
2226static boolean_t
2227vdev_guid_match(nvlist_t *config, uint64_t guid)
2228{
2229	nvlist_t *nvroot;
2230
2231	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2232	    &nvroot) == 0);
2233
2234	return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) ||
2235	    vdev_child_guid_match(nvroot, guid));
2236}
2237
2238static boolean_t
2239vdev_string_match(nvlist_t *config, char *tgt)
2240{
2241	nvlist_t *nvroot;
2242
2243	verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
2244	    &nvroot) == 0);
2245
2246	return (vdev_child_string_match(nvroot, tgt));
2247}
2248
2249static boolean_t
2250pool_match(nvlist_t *config, char *tgt)
2251{
2252	uint64_t guid = strtoull(tgt, NULL, 0);
2253
2254	if (guid != 0) {
2255		return (
2256		    nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) ||
2257		    vdev_guid_match(config, guid));
2258	} else {
2259		return (
2260		    nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) ||
2261		    vdev_string_match(config, tgt));
2262	}
2263}
2264
2265static int
2266find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir)
2267{
2268	nvlist_t *pools;
2269	int error = ENOENT;
2270	nvlist_t *match = NULL;
2271
2272	if (vdev_dir != NULL)
2273		pools = zpool_find_import_activeok(g_zfs, 1, &vdev_dir);
2274	else
2275		pools = zpool_find_import_activeok(g_zfs, 0, NULL);
2276
2277	if (pools != NULL) {
2278		nvpair_t *elem = NULL;
2279
2280		while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
2281			verify(nvpair_value_nvlist(elem, configp) == 0);
2282			if (pool_match(*configp, pool_id)) {
2283				if (match != NULL) {
2284					(void) fatal(
2285					    "More than one matching pool - "
2286					    "specify guid/devid/device path.");
2287				} else {
2288					match = *configp;
2289					error = 0;
2290				}
2291			}
2292		}
2293	}
2294
2295	*configp = error ? NULL : match;
2296
2297	return (error);
2298}
2299
2300int
2301main(int argc, char **argv)
2302{
2303	int i, c;
2304	struct rlimit rl = { 1024, 1024 };
2305	spa_t *spa;
2306	objset_t *os = NULL;
2307	char *endstr;
2308	int dump_all = 1;
2309	int verbose = 0;
2310	int error;
2311	int exported = 0;
2312	char *vdev_dir = NULL;
2313
2314	(void) setrlimit(RLIMIT_NOFILE, &rl);
2315	(void) enable_extended_FILE_stdio(-1, -1);
2316
2317	dprintf_setup(&argc, argv);
2318
2319	while ((c = getopt(argc, argv, "udibcmsvCLS:U:lRep:t:")) != -1) {
2320		switch (c) {
2321		case 'u':
2322		case 'd':
2323		case 'i':
2324		case 'b':
2325		case 'c':
2326		case 'm':
2327		case 's':
2328		case 'C':
2329		case 'l':
2330		case 'R':
2331			dump_opt[c]++;
2332			dump_all = 0;
2333			break;
2334		case 'L':
2335			dump_opt[c]++;
2336			break;
2337		case 'v':
2338			verbose++;
2339			break;
2340		case 'U':
2341			spa_config_path = optarg;
2342			break;
2343		case 'e':
2344			exported = 1;
2345			break;
2346		case 'p':
2347			vdev_dir = optarg;
2348			break;
2349		case 'S':
2350			dump_opt[c]++;
2351			dump_all = 0;
2352			zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0);
2353			if (!zdb_sig_user_data && strncmp(optarg, "all:", 4))
2354				usage();
2355			endstr = strchr(optarg, ':') + 1;
2356			if (strcmp(endstr, "fletcher2") == 0)
2357				zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2;
2358			else if (strcmp(endstr, "fletcher4") == 0)
2359				zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4;
2360			else if (strcmp(endstr, "sha256") == 0)
2361				zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256;
2362			else if (strcmp(endstr, "all") == 0)
2363				zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2;
2364			else
2365				usage();
2366			break;
2367		case 't':
2368			ub_max_txg = strtoull(optarg, NULL, 0);
2369			if (ub_max_txg < TXG_INITIAL) {
2370				(void) fprintf(stderr, "incorrect txg "
2371				    "specified: %s\n", optarg);
2372				usage();
2373			}
2374			break;
2375		default:
2376			usage();
2377			break;
2378		}
2379	}
2380
2381	if (vdev_dir != NULL && exported == 0) {
2382		(void) fprintf(stderr, "-p option requires use of -e\n");
2383		usage();
2384	}
2385
2386	kernel_init(FREAD);
2387	g_zfs = libzfs_init();
2388	ASSERT(g_zfs != NULL);
2389
2390	for (c = 0; c < 256; c++) {
2391		if (dump_all && c != 'l' && c != 'R')
2392			dump_opt[c] = 1;
2393		if (dump_opt[c])
2394			dump_opt[c] += verbose;
2395	}
2396
2397	argc -= optind;
2398	argv += optind;
2399
2400	if (argc < 1) {
2401		if (dump_opt['C']) {
2402			dump_cachefile(spa_config_path);
2403			return (0);
2404		}
2405		usage();
2406	}
2407
2408	if (dump_opt['l']) {
2409		dump_label(argv[0]);
2410		return (0);
2411	}
2412
2413	if (dump_opt['R']) {
2414		flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
2415		flagbits['c'] = ZDB_FLAG_CHECKSUM;
2416		flagbits['d'] = ZDB_FLAG_DECOMPRESS;
2417		flagbits['e'] = ZDB_FLAG_BSWAP;
2418		flagbits['g'] = ZDB_FLAG_GBH;
2419		flagbits['i'] = ZDB_FLAG_INDIRECT;
2420		flagbits['p'] = ZDB_FLAG_PHYS;
2421		flagbits['r'] = ZDB_FLAG_RAW;
2422
2423		spa = NULL;
2424		while (argv[0]) {
2425			zdb_read_block(argv[0], &spa);
2426			argv++;
2427			argc--;
2428		}
2429		if (spa)
2430			spa_close(spa, (void *)zdb_read_block);
2431		return (0);
2432	}
2433
2434	if (dump_opt['C'])
2435		dump_config(argv[0]);
2436
2437	error = 0;
2438	if (exported) {
2439		/*
2440		 * Check to see if the name refers to an exported zpool
2441		 */
2442		char *slash;
2443		nvlist_t *exported_conf = NULL;
2444
2445		if ((slash = strchr(argv[0], '/')) != NULL)
2446			*slash = '\0';
2447
2448		error = find_exported_zpool(argv[0], &exported_conf, vdev_dir);
2449		if (error == 0) {
2450			nvlist_t *nvl = NULL;
2451
2452			if (vdev_dir != NULL) {
2453				if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0)
2454					error = ENOMEM;
2455				else if (nvlist_add_string(nvl,
2456				    zpool_prop_to_name(ZPOOL_PROP_ALTROOT),
2457				    vdev_dir) != 0)
2458					error = ENOMEM;
2459			}
2460
2461			if (error == 0)
2462				error = spa_import_verbatim(argv[0],
2463				    exported_conf, nvl);
2464
2465			nvlist_free(nvl);
2466		}
2467
2468		if (slash != NULL)
2469			*slash = '/';
2470	}
2471
2472	if (error == 0) {
2473		if (strchr(argv[0], '/') != NULL) {
2474			error = dmu_objset_open(argv[0], DMU_OST_ANY,
2475			    DS_MODE_USER | DS_MODE_READONLY, &os);
2476		} else {
2477			error = spa_open(argv[0], &spa, FTAG);
2478		}
2479	}
2480
2481	if (error)
2482		fatal("can't open %s: %s", argv[0], strerror(error));
2483
2484	argv++;
2485	if (--argc > 0) {
2486		zopt_objects = argc;
2487		zopt_object = calloc(zopt_objects, sizeof (uint64_t));
2488		for (i = 0; i < zopt_objects; i++) {
2489			errno = 0;
2490			zopt_object[i] = strtoull(argv[i], NULL, 0);
2491			if (zopt_object[i] == 0 && errno != 0)
2492				fatal("bad object number %s: %s",
2493				    argv[i], strerror(errno));
2494		}
2495	}
2496
2497	if (os != NULL) {
2498		dump_dir(os);
2499		dmu_objset_close(os);
2500	} else {
2501		dump_zpool(spa);
2502		spa_close(spa, FTAG);
2503	}
2504
2505	fuid_table_destroy();
2506
2507	libzfs_fini(g_zfs);
2508	kernel_fini();
2509
2510	return (0);
2511}
2512