cddl/contrib/opensolaris/cmd/zdb/zdb.c

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