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 #undef ZFS_MAXNAMELEN
  61 #include <libzfs.h>
  62
  63 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ?        \
  64         zio_compress_table[(idx)].ci_name : "UNKNOWN")
  65 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ?        \
  66         zio_checksum_table[(idx)].ci_name : "UNKNOWN")
  67 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ?     \
  68         dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ?  \
  69         dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
  70 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) :             \
  71         (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
  72         DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
  73
  74 #ifndef lint
  75 extern int zfs_recover;
  76 #else
  77 int zfs_recover;
  78 #endif
  79
  80 const char cmdname[] = "zdb";
  81 uint8_t dump_opt[256];
  82
  83 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
  84
  85 extern void dump_intent_log(zilog_t *);
  86 uint64_t *zopt_object = NULL;
  87 int zopt_objects = 0;
  88 libzfs_handle_t *g_zfs;
  89
  90 /*
  91  * These libumem hooks provide a reasonable set of defaults for the allocator's
  92  * debugging facilities.
  93  */
  94 const char *
  95 _umem_debug_init(void)
  96 {
  97         return ("default,verbose"); /* $UMEM_DEBUG setting */
  98 }
  99
 100 const char *
 101 _umem_logging_init(void)
 102 {
 103         return ("fail,contents"); /* $UMEM_LOGGING setting */
 104 }
 105
 106 static void
 107 usage(void)
 108 {
 109         (void) fprintf(stderr,
 110             "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
 111             "poolname [object...]\n"
 112             "       %s [-divPA] [-e -p path...] dataset [object...]\n"
 113             "       %s -m [-LXFPA] [-t txg] [-e [-p path...]] "
 114             "poolname [vdev [metaslab...]]\n"
 115             "       %s -R [-A] [-e [-p path...]] poolname "
 116             "vdev:offset:size[:flags]\n"
 117             "       %s -S [-PA] [-e [-p path...]] poolname\n"
 118             "       %s -l [-uA] device\n"
 119             "       %s -C [-A] [-U config]\n\n",
 120             cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
 121
 122         (void) fprintf(stderr, "    Dataset name must include at least one "
 123             "separator character '/' or '@'\n");
 124         (void) fprintf(stderr, "    If dataset name is specified, only that "
 125             "dataset is dumped\n");
 126         (void) fprintf(stderr, "    If object numbers are specified, only "
 127             "those objects are dumped\n\n");
 128         (void) fprintf(stderr, "    Options to control amount of output:\n");
 129         (void) fprintf(stderr, "        -u uberblock\n");
 130         (void) fprintf(stderr, "        -d dataset(s)\n");
 131         (void) fprintf(stderr, "        -i intent logs\n");
 132         (void) fprintf(stderr, "        -C config (or cachefile if alone)\n");
 133         (void) fprintf(stderr, "        -h pool history\n");
 134         (void) fprintf(stderr, "        -b block statistics\n");
 135         (void) fprintf(stderr, "        -m metaslabs\n");
 136         (void) fprintf(stderr, "        -c checksum all metadata (twice for "
 137             "all data) blocks\n");
 138         (void) fprintf(stderr, "        -s report stats on zdb's I/O\n");
 139         (void) fprintf(stderr, "        -D dedup statistics\n");
 140         (void) fprintf(stderr, "        -S simulate dedup to measure effect\n");
 141         (void) fprintf(stderr, "        -v verbose (applies to all others)\n");
 142         (void) fprintf(stderr, "        -l dump label contents\n");
 143         (void) fprintf(stderr, "        -L disable leak tracking (do not "
 144             "load spacemaps)\n");
 145         (void) fprintf(stderr, "        -R read and display block from a "
 146             "device\n\n");
 147         (void) fprintf(stderr, "    Below options are intended for use "
 148             "with other options (except -l):\n");
 149         (void) fprintf(stderr, "        -A ignore assertions (-A), enable "
 150             "panic recovery (-AA) or both (-AAA)\n");
 151         (void) fprintf(stderr, "        -F attempt automatic rewind within "
 152             "safe range of transaction groups\n");
 153         (void) fprintf(stderr, "        -U <cachefile_path> -- use alternate "
 154             "cachefile\n");
 155         (void) fprintf(stderr, "        -X attempt extreme rewind (does not "
 156             "work with dataset)\n");
 157         (void) fprintf(stderr, "        -e pool is exported/destroyed/"
 158             "has altroot/not in a cachefile\n");
 159         (void) fprintf(stderr, "        -p <path> -- use one or more with "
 160             "-e to specify path to vdev dir\n");
 161         (void) fprintf(stderr, "        -P print numbers in parseable form\n");
 162         (void) fprintf(stderr, "        -t <txg> -- highest txg to use when "
 163             "searching for uberblocks\n");
 164         (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
 165             "to make only that option verbose\n");
 166         (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
 167         exit(1);
 168 }
 169
 170 /*
 171  * Called for usage errors that are discovered after a call to spa_open(),
 172  * dmu_bonus_hold(), or pool_match().  abort() is called for other errors.
 173  */
 174
 175 static void
 176 fatal(const char *fmt, ...)
 177 {
 178         va_list ap;
 179
 180         va_start(ap, fmt);
 181         (void) fprintf(stderr, "%s: ", cmdname);
 182         (void) vfprintf(stderr, fmt, ap);
 183         va_end(ap);
 184         (void) fprintf(stderr, "\n");
 185
 186         exit(1);
 187 }
 188
 189 /* ARGSUSED */
 190 static void
 191 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
 192 {
 193         nvlist_t *nv;
 194         size_t nvsize = *(uint64_t *)data;
 195         char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
 196
 197         VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
 198
 199         VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
 200
 201         umem_free(packed, nvsize);
 202
 203         dump_nvlist(nv, 8);
 204
 205         nvlist_free(nv);
 206 }
 207
 208 static void
 209 zdb_nicenum(uint64_t num, char *buf)
 210 {
 211         if (dump_opt['P'])
 212                 (void) sprintf(buf, "%llu", (longlong_t)num);
 213         else
 214                 nicenum(num, buf);
 215 }
 216
 217 const char dump_zap_stars[] = "****************************************";
 218 const int dump_zap_width = sizeof (dump_zap_stars) - 1;
 219
 220 static void
 221 dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE])
 222 {
 223         int i;
 224         int minidx = ZAP_HISTOGRAM_SIZE - 1;
 225         int maxidx = 0;
 226         uint64_t max = 0;
 227
 228         for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) {
 229                 if (histo[i] > max)
 230                         max = histo[i];
 231                 if (histo[i] > 0 && i > maxidx)
 232                         maxidx = i;
 233                 if (histo[i] > 0 && i < minidx)
 234                         minidx = i;
 235         }
 236
 237         if (max < dump_zap_width)
 238                 max = dump_zap_width;
 239
 240         for (i = minidx; i <= maxidx; i++)
 241                 (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i],
 242                     &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]);
 243 }
 244
 245 static void
 246 dump_zap_stats(objset_t *os, uint64_t object)
 247 {
 248         int error;
 249         zap_stats_t zs;
 250
 251         error = zap_get_stats(os, object, &zs);
 252         if (error)
 253                 return;
 254
 255         if (zs.zs_ptrtbl_len == 0) {
 256                 ASSERT(zs.zs_num_blocks == 1);
 257                 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
 258                     (u_longlong_t)zs.zs_blocksize,
 259                     (u_longlong_t)zs.zs_num_entries);
 260                 return;
 261         }
 262
 263         (void) printf("\tFat ZAP stats:\n");
 264
 265         (void) printf("\t\tPointer table:\n");
 266         (void) printf("\t\t\t%llu elements\n",
 267             (u_longlong_t)zs.zs_ptrtbl_len);
 268         (void) printf("\t\t\tzt_blk: %llu\n",
 269             (u_longlong_t)zs.zs_ptrtbl_zt_blk);
 270         (void) printf("\t\t\tzt_numblks: %llu\n",
 271             (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
 272         (void) printf("\t\t\tzt_shift: %llu\n",
 273             (u_longlong_t)zs.zs_ptrtbl_zt_shift);
 274         (void) printf("\t\t\tzt_blks_copied: %llu\n",
 275             (u_longlong_t)zs.zs_ptrtbl_blks_copied);
 276         (void) printf("\t\t\tzt_nextblk: %llu\n",
 277             (u_longlong_t)zs.zs_ptrtbl_nextblk);
 278
 279         (void) printf("\t\tZAP entries: %llu\n",
 280             (u_longlong_t)zs.zs_num_entries);
 281         (void) printf("\t\tLeaf blocks: %llu\n",
 282             (u_longlong_t)zs.zs_num_leafs);
 283         (void) printf("\t\tTotal blocks: %llu\n",
 284             (u_longlong_t)zs.zs_num_blocks);
 285         (void) printf("\t\tzap_block_type: 0x%llx\n",
 286             (u_longlong_t)zs.zs_block_type);
 287         (void) printf("\t\tzap_magic: 0x%llx\n",
 288             (u_longlong_t)zs.zs_magic);
 289         (void) printf("\t\tzap_salt: 0x%llx\n",
 290             (u_longlong_t)zs.zs_salt);
 291
 292         (void) printf("\t\tLeafs with 2^n pointers:\n");
 293         dump_zap_histogram(zs.zs_leafs_with_2n_pointers);
 294
 295         (void) printf("\t\tBlocks with n*5 entries:\n");
 296         dump_zap_histogram(zs.zs_blocks_with_n5_entries);
 297
 298         (void) printf("\t\tBlocks n/10 full:\n");
 299         dump_zap_histogram(zs.zs_blocks_n_tenths_full);
 300
 301         (void) printf("\t\tEntries with n chunks:\n");
 302         dump_zap_histogram(zs.zs_entries_using_n_chunks);
 303
 304         (void) printf("\t\tBuckets with n entries:\n");
 305         dump_zap_histogram(zs.zs_buckets_with_n_entries);
 306 }
 307
 308 /*ARGSUSED*/
 309 static void
 310 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
 311 {
 312 }
 313
 314 /*ARGSUSED*/
 315 static void
 316 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
 317 {
 318         (void) printf("\tUNKNOWN OBJECT TYPE\n");
 319 }
 320
 321 /*ARGSUSED*/
 322 void
 323 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
 324 {
 325 }
 326
 327 /*ARGSUSED*/
 328 static void
 329 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
 330 {
 331 }
 332
 333 /*ARGSUSED*/
 334 static void
 335 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
 336 {
 337         zap_cursor_t zc;
 338         zap_attribute_t attr;
 339         void *prop;
 340         int i;
 341
 342         dump_zap_stats(os, object);
 343         (void) printf("\n");
 344
 345         for (zap_cursor_init(&zc, os, object);
 346             zap_cursor_retrieve(&zc, &attr) == 0;
 347             zap_cursor_advance(&zc)) {
 348                 (void) printf("\t\t%s = ", attr.za_name);
 349                 if (attr.za_num_integers == 0) {
 350                         (void) printf("\n");
 351                         continue;
 352                 }
 353                 prop = umem_zalloc(attr.za_num_integers *
 354                     attr.za_integer_length, UMEM_NOFAIL);
 355                 (void) zap_lookup(os, object, attr.za_name,
 356                     attr.za_integer_length, attr.za_num_integers, prop);
 357                 if (attr.za_integer_length == 1) {
 358                         (void) printf("%s", (char *)prop);
 359                 } else {
 360                         for (i = 0; i < attr.za_num_integers; i++) {
 361                                 switch (attr.za_integer_length) {
 362                                 case 2:
 363                                         (void) printf("%u ",
 364                                             ((uint16_t *)prop)[i]);
 365                                         break;
 366                                 case 4:
 367                                         (void) printf("%u ",
 368                                             ((uint32_t *)prop)[i]);
 369                                         break;
 370                                 case 8:
 371                                         (void) printf("%lld ",
 372                                             (u_longlong_t)((int64_t *)prop)[i]);
 373                                         break;
 374                                 }
 375                         }
 376                 }
 377                 (void) printf("\n");
 378                 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
 379         }
 380         zap_cursor_fini(&zc);
 381 }
 382
 383 /*ARGSUSED*/
 384 static void
 385 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
 386 {
 387         dump_zap_stats(os, object);
 388         /* contents are printed elsewhere, properly decoded */
 389 }
 390
 391 /*ARGSUSED*/
 392 static void
 393 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
 394 {
 395         zap_cursor_t zc;
 396         zap_attribute_t attr;
 397
 398         dump_zap_stats(os, object);
 399         (void) printf("\n");
 400
 401         for (zap_cursor_init(&zc, os, object);
 402             zap_cursor_retrieve(&zc, &attr) == 0;
 403             zap_cursor_advance(&zc)) {
 404                 (void) printf("\t\t%s = ", attr.za_name);
 405                 if (attr.za_num_integers == 0) {
 406                         (void) printf("\n");
 407                         continue;
 408                 }
 409                 (void) printf(" %llx : [%d:%d:%d]\n",
 410                     (u_longlong_t)attr.za_first_integer,
 411                     (int)ATTR_LENGTH(attr.za_first_integer),
 412                     (int)ATTR_BSWAP(attr.za_first_integer),
 413                     (int)ATTR_NUM(attr.za_first_integer));
 414         }
 415         zap_cursor_fini(&zc);
 416 }
 417
 418 /*ARGSUSED*/
 419 static void
 420 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
 421 {
 422         zap_cursor_t zc;
 423         zap_attribute_t attr;
 424         uint16_t *layout_attrs;
 425         int i;
 426
 427         dump_zap_stats(os, object);
 428         (void) printf("\n");
 429
 430         for (zap_cursor_init(&zc, os, object);
 431             zap_cursor_retrieve(&zc, &attr) == 0;
 432             zap_cursor_advance(&zc)) {
 433                 (void) printf("\t\t%s = [", attr.za_name);
 434                 if (attr.za_num_integers == 0) {
 435                         (void) printf("\n");
 436                         continue;
 437                 }
 438
 439                 VERIFY(attr.za_integer_length == 2);
 440                 layout_attrs = umem_zalloc(attr.za_num_integers *
 441                     attr.za_integer_length, UMEM_NOFAIL);
 442
 443                 VERIFY(zap_lookup(os, object, attr.za_name,
 444                     attr.za_integer_length,
 445                     attr.za_num_integers, layout_attrs) == 0);
 446
 447                 for (i = 0; i != attr.za_num_integers; i++)
 448                         (void) printf(" %d ", (int)layout_attrs[i]);
 449                 (void) printf("]\n");
 450                 umem_free(layout_attrs,
 451                     attr.za_num_integers * attr.za_integer_length);
 452         }
 453         zap_cursor_fini(&zc);
 454 }
 455
 456 /*ARGSUSED*/
 457 static void
 458 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
 459 {
 460         zap_cursor_t zc;
 461         zap_attribute_t attr;
 462         const char *typenames[] = {
 463                 /* 0 */ "not specified",
 464                 /* 1 */ "FIFO",
 465                 /* 2 */ "Character Device",
 466                 /* 3 */ "3 (invalid)",
 467                 /* 4 */ "Directory",
 468                 /* 5 */ "5 (invalid)",
 469                 /* 6 */ "Block Device",
 470                 /* 7 */ "7 (invalid)",
 471                 /* 8 */ "Regular File",
 472                 /* 9 */ "9 (invalid)",
 473                 /* 10 */ "Symbolic Link",
 474                 /* 11 */ "11 (invalid)",
 475                 /* 12 */ "Socket",
 476                 /* 13 */ "Door",
 477                 /* 14 */ "Event Port",
 478                 /* 15 */ "15 (invalid)",
 479         };
 480
 481         dump_zap_stats(os, object);
 482         (void) printf("\n");
 483
 484         for (zap_cursor_init(&zc, os, object);
 485             zap_cursor_retrieve(&zc, &attr) == 0;
 486             zap_cursor_advance(&zc)) {
 487                 (void) printf("\t\t%s = %lld (type: %s)\n",
 488                     attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
 489                     typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
 490         }
 491         zap_cursor_fini(&zc);
 492 }
 493
 494 static void
 495 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm)
 496 {
 497         uint64_t alloc, offset, entry;
 498         uint8_t mapshift = sm->sm_shift;
 499         uint64_t mapstart = sm->sm_start;
 500         char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
 501                             "INVALID", "INVALID", "INVALID", "INVALID" };
 502
 503         if (smo->smo_object == 0)
 504                 return;
 505
 506         /*
 507          * Print out the freelist entries in both encoded and decoded form.
 508          */
 509         alloc = 0;
 510         for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) {
 511                 VERIFY3U(0, ==, dmu_read(os, smo->smo_object, offset,
 512                     sizeof (entry), &entry, DMU_READ_PREFETCH));
 513                 if (SM_DEBUG_DECODE(entry)) {
 514                         (void) printf("\t    [%6llu] %s: txg %llu, pass %llu\n",
 515                             (u_longlong_t)(offset / sizeof (entry)),
 516                             ddata[SM_DEBUG_ACTION_DECODE(entry)],
 517                             (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
 518                             (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
 519                 } else {
 520                         (void) printf("\t    [%6llu]    %c  range:"
 521                             " %010llx-%010llx  size: %06llx\n",
 522                             (u_longlong_t)(offset / sizeof (entry)),
 523                             SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
 524                             (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
 525                             mapshift) + mapstart),
 526                             (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
 527                             mapshift) + mapstart + (SM_RUN_DECODE(entry) <<
 528                             mapshift)),
 529                             (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
 530                         if (SM_TYPE_DECODE(entry) == SM_ALLOC)
 531                                 alloc += SM_RUN_DECODE(entry) << mapshift;
 532                         else
 533                                 alloc -= SM_RUN_DECODE(entry) << mapshift;
 534                 }
 535         }
 536         if (alloc != smo->smo_alloc) {
 537                 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
 538                     "with space map summary (%llu)\n",
 539                     (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc);
 540         }
 541 }
 542
 543 static void
 544 dump_metaslab_stats(metaslab_t *msp)
 545 {
 546         char maxbuf[32];
 547         space_map_t *sm = &msp->ms_map;
 548         avl_tree_t *t = sm->sm_pp_root;
 549         int free_pct = sm->sm_space * 100 / sm->sm_size;
 550
 551         zdb_nicenum(space_map_maxsize(sm), maxbuf);
 552
 553         (void) printf("\t %25s %10lu   %7s  %6s   %4s %4d%%\n",
 554             "segments", avl_numnodes(t), "maxsize", maxbuf,
 555             "freepct", free_pct);
 556 }
 557
 558 static void
 559 dump_metaslab(metaslab_t *msp)
 560 {
 561         vdev_t *vd = msp->ms_group->mg_vd;
 562         spa_t *spa = vd->vdev_spa;
 563         space_map_t *sm = &msp->ms_map;
 564         space_map_obj_t *smo = &msp->ms_smo;
 565         char freebuf[32];
 566
 567         zdb_nicenum(sm->sm_size - smo->smo_alloc, freebuf);
 568
 569         (void) printf(
 570             "\tmetaslab %6llu   offset %12llx   spacemap %6llu   free    %5s\n",
 571             (u_longlong_t)(sm->sm_start / sm->sm_size),
 572             (u_longlong_t)sm->sm_start, (u_longlong_t)smo->smo_object, freebuf);
 573
 574         if (dump_opt['m'] > 1 && !dump_opt['L']) {
 575                 mutex_enter(&msp->ms_lock);
 576                 space_map_load_wait(sm);
 577                 if (!sm->sm_loaded)
 578                         VERIFY(space_map_load(sm, zfs_metaslab_ops,
 579                             SM_FREE, smo, spa->spa_meta_objset) == 0);
 580                 dump_metaslab_stats(msp);
 581                 space_map_unload(sm);
 582                 mutex_exit(&msp->ms_lock);
 583         }
 584
 585         if (dump_opt['d'] > 5 || dump_opt['m'] > 2) {
 586                 ASSERT(sm->sm_size == (1ULL << vd->vdev_ms_shift));
 587
 588                 mutex_enter(&msp->ms_lock);
 589                 dump_spacemap(spa->spa_meta_objset, smo, sm);
 590                 mutex_exit(&msp->ms_lock);
 591         }
 592 }
 593
 594 static void
 595 print_vdev_metaslab_header(vdev_t *vd)
 596 {
 597         (void) printf("\tvdev %10llu\n\t%-10s%5llu   %-19s   %-15s   %-10s\n",
 598             (u_longlong_t)vd->vdev_id,
 599             "metaslabs", (u_longlong_t)vd->vdev_ms_count,
 600             "offset", "spacemap", "free");
 601         (void) printf("\t%15s   %19s   %15s   %10s\n",
 602             "---------------", "-------------------",
 603             "---------------", "-------------");
 604 }
 605
 606 static void
 607 dump_metaslabs(spa_t *spa)
 608 {
 609         vdev_t *vd, *rvd = spa->spa_root_vdev;
 610         uint64_t m, c = 0, children = rvd->vdev_children;
 611
 612         (void) printf("\nMetaslabs:\n");
 613
 614         if (!dump_opt['d'] && zopt_objects > 0) {
 615                 c = zopt_object[0];
 616
 617                 if (c >= children)
 618                         (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
 619
 620                 if (zopt_objects > 1) {
 621                         vd = rvd->vdev_child[c];
 622                         print_vdev_metaslab_header(vd);
 623
 624                         for (m = 1; m < zopt_objects; m++) {
 625                                 if (zopt_object[m] < vd->vdev_ms_count)
 626                                         dump_metaslab(
 627                                             vd->vdev_ms[zopt_object[m]]);
 628                                 else
 629                                         (void) fprintf(stderr, "bad metaslab "
 630                                             "number %llu\n",
 631                                             (u_longlong_t)zopt_object[m]);
 632                         }
 633                         (void) printf("\n");
 634                         return;
 635                 }
 636                 children = c + 1;
 637         }
 638         for (; c < children; c++) {
 639                 vd = rvd->vdev_child[c];
 640                 print_vdev_metaslab_header(vd);
 641
 642                 for (m = 0; m < vd->vdev_ms_count; m++)
 643                         dump_metaslab(vd->vdev_ms[m]);
 644                 (void) printf("\n");
 645         }
 646 }
 647
 648 static void
 649 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
 650 {
 651         const ddt_phys_t *ddp = dde->dde_phys;
 652         const ddt_key_t *ddk = &dde->dde_key;
 653         char *types[4] = { "ditto", "single", "double", "triple" };
 654         char blkbuf[BP_SPRINTF_LEN];
 655         blkptr_t blk;
 656         int p;
 657
 658         for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
 659                 if (ddp->ddp_phys_birth == 0)
 660                         continue;
 661                 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
 662                 sprintf_blkptr(blkbuf, &blk);
 663                 (void) printf("index %llx refcnt %llu %s %s\n",
 664                     (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
 665                     types[p], blkbuf);
 666         }
 667 }
 668
 669 static void
 670 dump_dedup_ratio(const ddt_stat_t *dds)
 671 {
 672         double rL, rP, rD, D, dedup, compress, copies;
 673
 674         if (dds->dds_blocks == 0)
 675                 return;
 676
 677         rL = (double)dds->dds_ref_lsize;
 678         rP = (double)dds->dds_ref_psize;
 679         rD = (double)dds->dds_ref_dsize;
 680         D = (double)dds->dds_dsize;
 681
 682         dedup = rD / D;
 683         compress = rL / rP;
 684         copies = rD / rP;
 685
 686         (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
 687             "dedup * compress / copies = %.2f\n\n",
 688             dedup, compress, copies, dedup * compress / copies);
 689 }
 690
 691 static void
 692 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
 693 {
 694         char name[DDT_NAMELEN];
 695         ddt_entry_t dde;
 696         uint64_t walk = 0;
 697         dmu_object_info_t doi;
 698         uint64_t count, dspace, mspace;
 699         int error;
 700
 701         error = ddt_object_info(ddt, type, class, &doi);
 702
 703         if (error == ENOENT)
 704                 return;
 705         ASSERT(error == 0);
 706
 707         error = ddt_object_count(ddt, type, class, &count);
 708         ASSERT(error == 0);
 709         if (count == 0)
 710                 return;
 711
 712         dspace = doi.doi_physical_blocks_512 << 9;
 713         mspace = doi.doi_fill_count * doi.doi_data_block_size;
 714
 715         ddt_object_name(ddt, type, class, name);
 716
 717         (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
 718             name,
 719             (u_longlong_t)count,
 720             (u_longlong_t)(dspace / count),
 721             (u_longlong_t)(mspace / count));
 722
 723         if (dump_opt['D'] < 3)
 724                 return;
 725
 726         zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
 727
 728         if (dump_opt['D'] < 4)
 729                 return;
 730
 731         if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
 732                 return;
 733
 734         (void) printf("%s contents:\n\n", name);
 735
 736         while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
 737                 dump_dde(ddt, &dde, walk);
 738
 739         ASSERT(error == ENOENT);
 740
 741         (void) printf("\n");
 742 }
 743
 744 static void
 745 dump_all_ddts(spa_t *spa)
 746 {
 747         ddt_histogram_t ddh_total;
 748         ddt_stat_t dds_total;
 749         enum zio_checksum c;
 750         enum ddt_type type;
 751         enum ddt_class class;
 752
 753         bzero(&ddh_total, sizeof (ddt_histogram_t));
 754         bzero(&dds_total, sizeof (ddt_stat_t));
 755
 756         for (c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
 757                 ddt_t *ddt = spa->spa_ddt[c];
 758                 for (type = 0; type < DDT_TYPES; type++) {
 759                         for (class = 0; class < DDT_CLASSES;
 760                             class++) {
 761                                 dump_ddt(ddt, type, class);
 762                         }
 763                 }
 764         }
 765
 766         ddt_get_dedup_stats(spa, &dds_total);
 767
 768         if (dds_total.dds_blocks == 0) {
 769                 (void) printf("All DDTs are empty\n");
 770                 return;
 771         }
 772
 773         (void) printf("\n");
 774
 775         if (dump_opt['D'] > 1) {
 776                 (void) printf("DDT histogram (aggregated over all DDTs):\n");
 777                 ddt_get_dedup_histogram(spa, &ddh_total);
 778                 zpool_dump_ddt(&dds_total, &ddh_total);
 779         }
 780
 781         dump_dedup_ratio(&dds_total);
 782 }
 783
 784 static void
 785 dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size)
 786 {
 787         char *prefix = (void *)sm;
 788
 789         (void) printf("%s [%llu,%llu) length %llu\n",
 790             prefix,
 791             (u_longlong_t)start,
 792             (u_longlong_t)(start + size),
 793             (u_longlong_t)(size));
 794 }
 795
 796 static void
 797 dump_dtl(vdev_t *vd, int indent)
 798 {
 799         spa_t *spa = vd->vdev_spa;
 800         boolean_t required;
 801         char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
 802         char prefix[256];
 803         int c, t;
 804
 805         spa_vdev_state_enter(spa, SCL_NONE);
 806         required = vdev_dtl_required(vd);
 807         (void) spa_vdev_state_exit(spa, NULL, 0);
 808
 809         if (indent == 0)
 810                 (void) printf("\nDirty time logs:\n\n");
 811
 812         (void) printf("\t%*s%s [%s]\n", indent, "",
 813             vd->vdev_path ? vd->vdev_path :
 814             vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
 815             required ? "DTL-required" : "DTL-expendable");
 816
 817         for (t = 0; t < DTL_TYPES; t++) {
 818                 space_map_t *sm = &vd->vdev_dtl[t];
 819                 if (sm->sm_space == 0)
 820                         continue;
 821                 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
 822                     indent + 2, "", name[t]);
 823                 mutex_enter(sm->sm_lock);
 824                 space_map_walk(sm, dump_dtl_seg, (void *)prefix);
 825                 mutex_exit(sm->sm_lock);
 826                 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
 827                         dump_spacemap(spa->spa_meta_objset,
 828                             &vd->vdev_dtl_smo, sm);
 829         }
 830
 831         for (c = 0; c < vd->vdev_children; c++)
 832                 dump_dtl(vd->vdev_child[c], indent + 4);
 833 }
 834
 835 static void
 836 dump_history(spa_t *spa)
 837 {
 838         nvlist_t **events = NULL;
 839         char buf[SPA_MAXBLOCKSIZE];
 840         uint64_t resid, len, off = 0;
 841         uint_t num = 0;
 842         int error;
 843         time_t tsec;
 844         struct tm t;
 845         char tbuf[30];
 846         char internalstr[MAXPATHLEN];
 847         int i;
 848
 849         do {
 850                 len = sizeof (buf);
 851
 852                 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
 853                         (void) fprintf(stderr, "Unable to read history: "
 854                             "error %d\n", error);
 855                         return;
 856                 }
 857
 858                 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
 859                         break;
 860
 861                 off -= resid;
 862         } while (len != 0);
 863
 864         (void) printf("\nHistory:\n");
 865         for (i = 0; i < num; i++) {
 866                 uint64_t time, txg, ievent;
 867                 char *cmd, *intstr;
 868
 869                 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
 870                     &time) != 0)
 871                         continue;
 872                 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
 873                     &cmd) != 0) {
 874                         if (nvlist_lookup_uint64(events[i],
 875                             ZPOOL_HIST_INT_EVENT, &ievent) != 0)
 876                                 continue;
 877                         verify(nvlist_lookup_uint64(events[i],
 878                             ZPOOL_HIST_TXG, &txg) == 0);
 879                         verify(nvlist_lookup_string(events[i],
 880                             ZPOOL_HIST_INT_STR, &intstr) == 0);
 881                         if (ievent >= LOG_END)
 882                                 continue;
 883
 884                         (void) snprintf(internalstr,
 885                             sizeof (internalstr),
 886                             "[internal %s txg:%lld] %s",
 887                             zfs_history_event_names[ievent],
 888                             (longlong_t)txg, intstr);
 889                         cmd = internalstr;
 890                 }
 891                 tsec = time;
 892                 (void) localtime_r(&tsec, &t);
 893                 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
 894                 (void) printf("%s %s\n", tbuf, cmd);
 895         }
 896 }
 897
 898 /*ARGSUSED*/
 899 static void
 900 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
 901 {
 902 }
 903
 904 static uint64_t
 905 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb)
 906 {
 907         if (dnp == NULL) {
 908                 ASSERT(zb->zb_level < 0);
 909                 if (zb->zb_object == 0)
 910                         return (zb->zb_blkid);
 911                 return (zb->zb_blkid * BP_GET_LSIZE(bp));
 912         }
 913
 914         ASSERT(zb->zb_level >= 0);
 915
 916         return ((zb->zb_blkid <<
 917             (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
 918             dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
 919 }
 920
 921 static void
 922 sprintf_blkptr_compact(char *blkbuf, const blkptr_t *bp)
 923 {
 924         const dva_t *dva = bp->blk_dva;
 925         int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
 926         int i;
 927
 928         if (dump_opt['b'] >= 5) {
 929                 sprintf_blkptr(blkbuf, bp);
 930                 return;
 931         }
 932
 933         blkbuf[0] = '\0';
 934
 935         for (i = 0; i < ndvas; i++)
 936                 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ",
 937                     (u_longlong_t)DVA_GET_VDEV(&dva[i]),
 938                     (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
 939                     (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
 940
 941         (void) sprintf(blkbuf + strlen(blkbuf),
 942             "%llxL/%llxP F=%llu B=%llu/%llu",
 943             (u_longlong_t)BP_GET_LSIZE(bp),
 944             (u_longlong_t)BP_GET_PSIZE(bp),
 945             (u_longlong_t)bp->blk_fill,
 946             (u_longlong_t)bp->blk_birth,
 947             (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
 948 }
 949
 950 static void
 951 print_indirect(blkptr_t *bp, const zbookmark_t *zb,
 952     const dnode_phys_t *dnp)
 953 {
 954         char blkbuf[BP_SPRINTF_LEN];
 955         int l;
 956
 957         ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
 958         ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
 959
 960         (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
 961
 962         ASSERT(zb->zb_level >= 0);
 963
 964         for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
 965                 if (l == zb->zb_level) {
 966                         (void) printf("L%llx", (u_longlong_t)zb->zb_level);
 967                 } else {
 968                         (void) printf(" ");
 969                 }
 970         }
 971
 972         sprintf_blkptr_compact(blkbuf, bp);
 973         (void) printf("%s\n", blkbuf);
 974 }
 975
 976 static int
 977 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
 978     blkptr_t *bp, const zbookmark_t *zb)
 979 {
 980         int err = 0;
 981
 982         if (bp->blk_birth == 0)
 983                 return (0);
 984
 985         print_indirect(bp, zb, dnp);
 986
 987         if (BP_GET_LEVEL(bp) > 0) {
 988                 uint32_t flags = ARC_WAIT;
 989                 int i;
 990                 blkptr_t *cbp;
 991                 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
 992                 arc_buf_t *buf;
 993                 uint64_t fill = 0;
 994
 995                 err = arc_read_nolock(NULL, spa, bp, arc_getbuf_func, &buf,
 996                     ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
 997                 if (err)
 998                         return (err);
 999                 ASSERT(buf->b_data);
1000
1001                 /* recursively visit blocks below this */
1002                 cbp = buf->b_data;
1003                 for (i = 0; i < epb; i++, cbp++) {
1004                         zbookmark_t czb;
1005
1006                         SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1007                             zb->zb_level - 1,
1008                             zb->zb_blkid * epb + i);
1009                         err = visit_indirect(spa, dnp, cbp, &czb);
1010                         if (err)
1011                                 break;
1012                         fill += cbp->blk_fill;
1013                 }
1014                 if (!err)
1015                         ASSERT3U(fill, ==, bp->blk_fill);
1016                 (void) arc_buf_remove_ref(buf, &buf);
1017         }
1018
1019         return (err);
1020 }
1021
1022 /*ARGSUSED*/
1023 static void
1024 dump_indirect(dnode_t *dn)
1025 {
1026         dnode_phys_t *dnp = dn->dn_phys;
1027         int j;
1028         zbookmark_t czb;
1029
1030         (void) printf("Indirect blocks:\n");
1031
1032         SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1033             dn->dn_object, dnp->dn_nlevels - 1, 0);
1034         for (j = 0; j < dnp->dn_nblkptr; j++) {
1035                 czb.zb_blkid = j;
1036                 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1037                     &dnp->dn_blkptr[j], &czb);
1038         }
1039
1040         (void) printf("\n");
1041 }
1042
1043 /*ARGSUSED*/
1044 static void
1045 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1046 {
1047         dsl_dir_phys_t *dd = data;
1048         time_t crtime;
1049         char nice[32];
1050
1051         if (dd == NULL)
1052                 return;
1053
1054         ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1055
1056         crtime = dd->dd_creation_time;
1057         (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1058         (void) printf("\t\thead_dataset_obj = %llu\n",
1059             (u_longlong_t)dd->dd_head_dataset_obj);
1060         (void) printf("\t\tparent_dir_obj = %llu\n",
1061             (u_longlong_t)dd->dd_parent_obj);
1062         (void) printf("\t\torigin_obj = %llu\n",
1063             (u_longlong_t)dd->dd_origin_obj);
1064         (void) printf("\t\tchild_dir_zapobj = %llu\n",
1065             (u_longlong_t)dd->dd_child_dir_zapobj);
1066         zdb_nicenum(dd->dd_used_bytes, nice);
1067         (void) printf("\t\tused_bytes = %s\n", nice);
1068         zdb_nicenum(dd->dd_compressed_bytes, nice);
1069         (void) printf("\t\tcompressed_bytes = %s\n", nice);
1070         zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1071         (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1072         zdb_nicenum(dd->dd_quota, nice);
1073         (void) printf("\t\tquota = %s\n", nice);
1074         zdb_nicenum(dd->dd_reserved, nice);
1075         (void) printf("\t\treserved = %s\n", nice);
1076         (void) printf("\t\tprops_zapobj = %llu\n",
1077             (u_longlong_t)dd->dd_props_zapobj);
1078         (void) printf("\t\tdeleg_zapobj = %llu\n",
1079             (u_longlong_t)dd->dd_deleg_zapobj);
1080         (void) printf("\t\tflags = %llx\n",
1081             (u_longlong_t)dd->dd_flags);
1082
1083 #define DO(which) \
1084         zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1085         (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1086         DO(HEAD);
1087         DO(SNAP);
1088         DO(CHILD);
1089         DO(CHILD_RSRV);
1090         DO(REFRSRV);
1091 #undef DO
1092 }
1093
1094 /*ARGSUSED*/
1095 static void
1096 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1097 {
1098         dsl_dataset_phys_t *ds = data;
1099         time_t crtime;
1100         char used[32], compressed[32], uncompressed[32], unique[32];
1101         char blkbuf[BP_SPRINTF_LEN];
1102
1103         if (ds == NULL)
1104                 return;
1105
1106         ASSERT(size == sizeof (*ds));
1107         crtime = ds->ds_creation_time;
1108         zdb_nicenum(ds->ds_referenced_bytes, used);
1109         zdb_nicenum(ds->ds_compressed_bytes, compressed);
1110         zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1111         zdb_nicenum(ds->ds_unique_bytes, unique);
1112         sprintf_blkptr(blkbuf, &ds->ds_bp);
1113
1114         (void) printf("\t\tdir_obj = %llu\n",
1115             (u_longlong_t)ds->ds_dir_obj);
1116         (void) printf("\t\tprev_snap_obj = %llu\n",
1117             (u_longlong_t)ds->ds_prev_snap_obj);
1118         (void) printf("\t\tprev_snap_txg = %llu\n",
1119             (u_longlong_t)ds->ds_prev_snap_txg);
1120         (void) printf("\t\tnext_snap_obj = %llu\n",
1121             (u_longlong_t)ds->ds_next_snap_obj);
1122         (void) printf("\t\tsnapnames_zapobj = %llu\n",
1123             (u_longlong_t)ds->ds_snapnames_zapobj);
1124         (void) printf("\t\tnum_children = %llu\n",
1125             (u_longlong_t)ds->ds_num_children);
1126         (void) printf("\t\tuserrefs_obj = %llu\n",
1127             (u_longlong_t)ds->ds_userrefs_obj);
1128         (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1129         (void) printf("\t\tcreation_txg = %llu\n",
1130             (u_longlong_t)ds->ds_creation_txg);
1131         (void) printf("\t\tdeadlist_obj = %llu\n",
1132             (u_longlong_t)ds->ds_deadlist_obj);
1133         (void) printf("\t\tused_bytes = %s\n", used);
1134         (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1135         (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1136         (void) printf("\t\tunique = %s\n", unique);
1137         (void) printf("\t\tfsid_guid = %llu\n",
1138             (u_longlong_t)ds->ds_fsid_guid);
1139         (void) printf("\t\tguid = %llu\n",
1140             (u_longlong_t)ds->ds_guid);
1141         (void) printf("\t\tflags = %llx\n",
1142             (u_longlong_t)ds->ds_flags);
1143         (void) printf("\t\tnext_clones_obj = %llu\n",
1144             (u_longlong_t)ds->ds_next_clones_obj);
1145         (void) printf("\t\tprops_obj = %llu\n",
1146             (u_longlong_t)ds->ds_props_obj);
1147         (void) printf("\t\tbp = %s\n", blkbuf);
1148 }
1149
1150 /* ARGSUSED */
1151 static int
1152 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1153 {
1154         char blkbuf[BP_SPRINTF_LEN];
1155
1156         if (bp->blk_birth != 0) {
1157                 sprintf_blkptr(blkbuf, bp);
1158                 (void) printf("\t%s\n", blkbuf);
1159         }
1160         return (0);
1161 }
1162
1163 static void
1164 dump_bptree(objset_t *os, uint64_t obj, char *name)
1165 {
1166         char bytes[32];
1167         bptree_phys_t *bt;
1168         dmu_buf_t *db;
1169
1170         if (dump_opt['d'] < 3)
1171                 return;
1172
1173         VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1174         bt = db->db_data;
1175         zdb_nicenum(bt->bt_bytes, bytes);
1176         (void) printf("\n    %s: %llu datasets, %s\n",
1177             name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1178         dmu_buf_rele(db, FTAG);
1179
1180         if (dump_opt['d'] < 5)
1181                 return;
1182
1183         (void) printf("\n");
1184
1185         (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1186 }
1187
1188 /* ARGSUSED */
1189 static int
1190 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1191 {
1192         char blkbuf[BP_SPRINTF_LEN];
1193
1194         ASSERT(bp->blk_birth != 0);
1195         sprintf_blkptr_compact(blkbuf, bp);
1196         (void) printf("\t%s\n", blkbuf);
1197         return (0);
1198 }
1199
1200 static void
1201 dump_bpobj(bpobj_t *bpo, char *name)
1202 {
1203         char bytes[32];
1204         char comp[32];
1205         char uncomp[32];
1206
1207         if (dump_opt['d'] < 3)
1208                 return;
1209
1210         zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1211         if (bpo->bpo_havesubobj) {
1212                 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1213                 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1214                 (void) printf("\n    %s: %llu local blkptrs, %llu subobjs, "
1215                     "%s (%s/%s comp)\n",
1216                     name, (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1217                     (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1218                     bytes, comp, uncomp);
1219         } else {
1220                 (void) printf("\n    %s: %llu blkptrs, %s\n",
1221                     name, (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, bytes);
1222         }
1223
1224         if (dump_opt['d'] < 5)
1225                 return;
1226
1227         (void) printf("\n");
1228
1229         (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1230 }
1231
1232 static void
1233 dump_deadlist(dsl_deadlist_t *dl)
1234 {
1235         dsl_deadlist_entry_t *dle;
1236         char bytes[32];
1237         char comp[32];
1238         char uncomp[32];
1239
1240         if (dump_opt['d'] < 3)
1241                 return;
1242
1243         zdb_nicenum(dl->dl_phys->dl_used, bytes);
1244         zdb_nicenum(dl->dl_phys->dl_comp, comp);
1245         zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1246         (void) printf("\n    Deadlist: %s (%s/%s comp)\n",
1247             bytes, comp, uncomp);
1248
1249         if (dump_opt['d'] < 4)
1250                 return;
1251
1252         (void) printf("\n");
1253
1254         for (dle = avl_first(&dl->dl_tree); dle;
1255             dle = AVL_NEXT(&dl->dl_tree, dle)) {
1256                 (void) printf("      mintxg %llu -> obj %llu\n",
1257                     (longlong_t)dle->dle_mintxg,
1258                     (longlong_t)dle->dle_bpobj.bpo_object);
1259
1260                 if (dump_opt['d'] >= 5)
1261                         dump_bpobj(&dle->dle_bpobj, "");
1262         }
1263 }
1264
1265 static avl_tree_t idx_tree;
1266 static avl_tree_t domain_tree;
1267 static boolean_t fuid_table_loaded;
1268 static boolean_t sa_loaded;
1269 sa_attr_type_t *sa_attr_table;
1270
1271 static void
1272 fuid_table_destroy(void)
1273 {
1274         if (fuid_table_loaded) {
1275                 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1276                 fuid_table_loaded = B_FALSE;
1277         }
1278 }
1279
1280 /*
1281  * print uid or gid information.
1282  * For normal POSIX id just the id is printed in decimal format.
1283  * For CIFS files with FUID the fuid is printed in hex followed by
1284  * the doman-rid string.
1285  */
1286 static void
1287 print_idstr(uint64_t id, const char *id_type)
1288 {
1289         if (FUID_INDEX(id)) {
1290                 char *domain;
1291
1292                 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1293                 (void) printf("\t%s     %llx [%s-%d]\n", id_type,
1294                     (u_longlong_t)id, domain, (int)FUID_RID(id));
1295         } else {
1296                 (void) printf("\t%s     %llu\n", id_type, (u_longlong_t)id);
1297         }
1298
1299 }
1300
1301 static void
1302 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1303 {
1304         uint32_t uid_idx, gid_idx;
1305
1306         uid_idx = FUID_INDEX(uid);
1307         gid_idx = FUID_INDEX(gid);
1308
1309         /* Load domain table, if not already loaded */
1310         if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1311                 uint64_t fuid_obj;
1312
1313                 /* first find the fuid object.  It lives in the master node */
1314                 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1315                     8, 1, &fuid_obj) == 0);
1316                 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1317                 (void) zfs_fuid_table_load(os, fuid_obj,
1318                     &idx_tree, &domain_tree);
1319                 fuid_table_loaded = B_TRUE;
1320         }
1321
1322         print_idstr(uid, "uid");
1323         print_idstr(gid, "gid");
1324 }
1325
1326 /*ARGSUSED*/
1327 static void
1328 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1329 {
1330         char path[MAXPATHLEN * 2];      /* allow for xattr and failure prefix */
1331         sa_handle_t *hdl;
1332         uint64_t xattr, rdev, gen;
1333         uint64_t uid, gid, mode, fsize, parent, links;
1334         uint64_t pflags;
1335         uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1336         time_t z_crtime, z_atime, z_mtime, z_ctime;
1337         sa_bulk_attr_t bulk[12];
1338         int idx = 0;
1339         int error;
1340
1341         if (!sa_loaded) {
1342                 uint64_t sa_attrs = 0;
1343                 uint64_t version;
1344
1345                 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1346                     8, 1, &version) == 0);
1347                 if (version >= ZPL_VERSION_SA) {
1348                         VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1349                             8, 1, &sa_attrs) == 0);
1350                 }
1351                 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1352                     ZPL_END, &sa_attr_table)) != 0) {
1353                         (void) printf("sa_setup failed errno %d, can't "
1354                             "display znode contents\n", error);
1355                         return;
1356                 }
1357                 sa_loaded = B_TRUE;
1358         }
1359
1360         if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1361                 (void) printf("Failed to get handle for SA znode\n");
1362                 return;
1363         }
1364
1365         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1366         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1367         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1368             &links, 8);
1369         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1370         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1371             &mode, 8);
1372         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1373             NULL, &parent, 8);
1374         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1375             &fsize, 8);
1376         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1377             acctm, 16);
1378         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1379             modtm, 16);
1380         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1381             crtm, 16);
1382         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1383             chgtm, 16);
1384         SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1385             &pflags, 8);
1386
1387         if (sa_bulk_lookup(hdl, bulk, idx)) {
1388                 (void) sa_handle_destroy(hdl);
1389                 return;
1390         }
1391
1392         error = zfs_obj_to_path(os, object, path, sizeof (path));
1393         if (error != 0) {
1394                 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1395                     (u_longlong_t)object);
1396         }
1397         if (dump_opt['d'] < 3) {
1398                 (void) printf("\t%s\n", path);
1399                 (void) sa_handle_destroy(hdl);
1400                 return;
1401         }
1402
1403         z_crtime = (time_t)crtm[0];
1404         z_atime = (time_t)acctm[0];
1405         z_mtime = (time_t)modtm[0];
1406         z_ctime = (time_t)chgtm[0];
1407
1408         (void) printf("\tpath   %s\n", path);
1409         dump_uidgid(os, uid, gid);
1410         (void) printf("\tatime  %s", ctime(&z_atime));
1411         (void) printf("\tmtime  %s", ctime(&z_mtime));
1412         (void) printf("\tctime  %s", ctime(&z_ctime));
1413         (void) printf("\tcrtime %s", ctime(&z_crtime));
1414         (void) printf("\tgen    %llu\n", (u_longlong_t)gen);
1415         (void) printf("\tmode   %llo\n", (u_longlong_t)mode);
1416         (void) printf("\tsize   %llu\n", (u_longlong_t)fsize);
1417         (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1418         (void) printf("\tlinks  %llu\n", (u_longlong_t)links);
1419         (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1420         if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1421             sizeof (uint64_t)) == 0)
1422                 (void) printf("\txattr  %llu\n", (u_longlong_t)xattr);
1423         if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1424             sizeof (uint64_t)) == 0)
1425                 (void) printf("\trdev   0x%016llx\n", (u_longlong_t)rdev);
1426         sa_handle_destroy(hdl);
1427 }
1428
1429 /*ARGSUSED*/
1430 static void
1431 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1432 {
1433 }
1434
1435 /*ARGSUSED*/
1436 static void
1437 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1438 {
1439 }
1440
1441 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1442         dump_none,              /* unallocated                  */
1443         dump_zap,               /* object directory             */
1444         dump_uint64,            /* object array                 */
1445         dump_none,              /* packed nvlist                */
1446         dump_packed_nvlist,     /* packed nvlist size           */
1447         dump_none,              /* bplist                       */
1448         dump_none,              /* bplist header                */
1449         dump_none,              /* SPA space map header         */
1450         dump_none,              /* SPA space map                */
1451         dump_none,              /* ZIL intent log               */
1452         dump_dnode,             /* DMU dnode                    */
1453         dump_dmu_objset,        /* DMU objset                   */
1454         dump_dsl_dir,           /* DSL directory                */
1455         dump_zap,               /* DSL directory child map      */
1456         dump_zap,               /* DSL dataset snap map         */
1457         dump_zap,               /* DSL props                    */
1458         dump_dsl_dataset,       /* DSL dataset                  */
1459         dump_znode,             /* ZFS znode                    */
1460         dump_acl,               /* ZFS V0 ACL                   */
1461         dump_uint8,             /* ZFS plain file               */
1462         dump_zpldir,            /* ZFS directory                */
1463         dump_zap,               /* ZFS master node              */
1464         dump_zap,               /* ZFS delete queue             */
1465         dump_uint8,             /* zvol object                  */
1466         dump_zap,               /* zvol prop                    */
1467         dump_uint8,             /* other uint8[]                */
1468         dump_uint64,            /* other uint64[]               */
1469         dump_zap,               /* other ZAP                    */
1470         dump_zap,               /* persistent error log         */
1471         dump_uint8,             /* SPA history                  */
1472         dump_uint64,            /* SPA history offsets          */
1473         dump_zap,               /* Pool properties              */
1474         dump_zap,               /* DSL permissions              */
1475         dump_acl,               /* ZFS ACL                      */
1476         dump_uint8,             /* ZFS SYSACL                   */
1477         dump_none,              /* FUID nvlist                  */
1478         dump_packed_nvlist,     /* FUID nvlist size             */
1479         dump_zap,               /* DSL dataset next clones      */
1480         dump_zap,               /* DSL scrub queue              */
1481         dump_zap,               /* ZFS user/group used          */
1482         dump_zap,               /* ZFS user/group quota         */
1483         dump_zap,               /* snapshot refcount tags       */
1484         dump_ddt_zap,           /* DDT ZAP object               */
1485         dump_zap,               /* DDT statistics               */
1486         dump_znode,             /* SA object                    */
1487         dump_zap,               /* SA Master Node               */
1488         dump_sa_attrs,          /* SA attribute registration    */
1489         dump_sa_layouts,        /* SA attribute layouts         */
1490         dump_zap,               /* DSL scrub translations       */
1491         dump_none,              /* fake dedup BP                */
1492         dump_zap,               /* deadlist                     */
1493         dump_none,              /* deadlist hdr                 */
1494         dump_zap,               /* dsl clones                   */
1495         dump_none,              /* bpobj subobjs                */
1496         dump_unknown,           /* Unknown type, must be last   */
1497 };
1498
1499 static void
1500 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1501 {
1502         dmu_buf_t *db = NULL;
1503         dmu_object_info_t doi;
1504         dnode_t *dn;
1505         void *bonus = NULL;
1506         size_t bsize = 0;
1507         char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1508         char bonus_size[32];
1509         char aux[50];
1510         int error;
1511
1512         if (*print_header) {
1513                 (void) printf("\n%10s  %3s  %5s  %5s  %5s  %5s  %6s  %s\n",
1514                     "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1515                     "%full", "type");
1516                 *print_header = 0;
1517         }
1518
1519         if (object == 0) {
1520                 dn = DMU_META_DNODE(os);
1521         } else {
1522                 error = dmu_bonus_hold(os, object, FTAG, &db);
1523                 if (error)
1524                         fatal("dmu_bonus_hold(%llu) failed, errno %u",
1525                             object, error);
1526                 bonus = db->db_data;
1527                 bsize = db->db_size;
1528                 dn = DB_DNODE((dmu_buf_impl_t *)db);
1529         }
1530         dmu_object_info_from_dnode(dn, &doi);
1531
1532         zdb_nicenum(doi.doi_metadata_block_size, iblk);
1533         zdb_nicenum(doi.doi_data_block_size, dblk);
1534         zdb_nicenum(doi.doi_max_offset, lsize);
1535         zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1536         zdb_nicenum(doi.doi_bonus_size, bonus_size);
1537         (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1538             doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1539             doi.doi_max_offset);
1540
1541         aux[0] = '\0';
1542
1543         if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1544                 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1545                     ZDB_CHECKSUM_NAME(doi.doi_checksum));
1546         }
1547
1548         if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1549                 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1550                     ZDB_COMPRESS_NAME(doi.doi_compress));
1551         }
1552
1553         (void) printf("%10lld  %3u  %5s  %5s  %5s  %5s  %6s  %s%s\n",
1554             (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1555             asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1556
1557         if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1558                 (void) printf("%10s  %3s  %5s  %5s  %5s  %5s  %6s  %s\n",
1559                     "", "", "", "", "", bonus_size, "bonus",
1560                     ZDB_OT_NAME(doi.doi_bonus_type));
1561         }
1562
1563         if (verbosity >= 4) {
1564                 (void) printf("\tdnode flags: %s%s%s\n",
1565                     (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1566                     "USED_BYTES " : "",
1567                     (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1568                     "USERUSED_ACCOUNTED " : "",
1569                     (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1570                     "SPILL_BLKPTR" : "");
1571                 (void) printf("\tdnode maxblkid: %llu\n",
1572                     (longlong_t)dn->dn_phys->dn_maxblkid);
1573
1574                 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1575                     bonus, bsize);
1576                 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1577                 *print_header = 1;
1578         }
1579
1580         if (verbosity >= 5)
1581                 dump_indirect(dn);
1582
1583         if (verbosity >= 5) {
1584                 /*
1585                  * Report the list of segments that comprise the object.
1586                  */
1587                 uint64_t start = 0;
1588                 uint64_t end;
1589                 uint64_t blkfill = 1;
1590                 int minlvl = 1;
1591
1592                 if (dn->dn_type == DMU_OT_DNODE) {
1593                         minlvl = 0;
1594                         blkfill = DNODES_PER_BLOCK;
1595                 }
1596
1597                 for (;;) {
1598                         char segsize[32];
1599                         error = dnode_next_offset(dn,
1600                             0, &start, minlvl, blkfill, 0);
1601                         if (error)
1602                                 break;
1603                         end = start;
1604                         error = dnode_next_offset(dn,
1605                             DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1606                         zdb_nicenum(end - start, segsize);
1607                         (void) printf("\t\tsegment [%016llx, %016llx)"
1608                             " size %5s\n", (u_longlong_t)start,
1609                             (u_longlong_t)end, segsize);
1610                         if (error)
1611                                 break;
1612                         start = end;
1613                 }
1614         }
1615
1616         if (db != NULL)
1617                 dmu_buf_rele(db, FTAG);
1618 }
1619
1620 static char *objset_types[DMU_OST_NUMTYPES] = {
1621         "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1622
1623 static void
1624 dump_dir(objset_t *os)
1625 {
1626         dmu_objset_stats_t dds;
1627         uint64_t object, object_count;
1628         uint64_t refdbytes, usedobjs, scratch;
1629         char numbuf[32];
1630         char blkbuf[BP_SPRINTF_LEN + 20];
1631         char osname[MAXNAMELEN];
1632         char *type = "UNKNOWN";
1633         int verbosity = dump_opt['d'];
1634         int print_header = 1;
1635         int i, error;
1636
1637         dmu_objset_fast_stat(os, &dds);
1638
1639         if (dds.dds_type < DMU_OST_NUMTYPES)
1640                 type = objset_types[dds.dds_type];
1641
1642         if (dds.dds_type == DMU_OST_META) {
1643                 dds.dds_creation_txg = TXG_INITIAL;
1644                 usedobjs = os->os_rootbp->blk_fill;
1645                 refdbytes = os->os_spa->spa_dsl_pool->
1646                     dp_mos_dir->dd_phys->dd_used_bytes;
1647         } else {
1648                 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1649         }
1650
1651         ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill);
1652
1653         zdb_nicenum(refdbytes, numbuf);
1654
1655         if (verbosity >= 4) {
1656                 (void) sprintf(blkbuf, ", rootbp ");
1657                 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp);
1658         } else {
1659                 blkbuf[0] = '\0';
1660         }
1661
1662         dmu_objset_name(os, osname);
1663
1664         (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1665             "%s, %llu objects%s\n",
1666             osname, type, (u_longlong_t)dmu_objset_id(os),
1667             (u_longlong_t)dds.dds_creation_txg,
1668             numbuf, (u_longlong_t)usedobjs, blkbuf);
1669
1670         if (zopt_objects != 0) {
1671                 for (i = 0; i < zopt_objects; i++)
1672                         dump_object(os, zopt_object[i], verbosity,
1673                             &print_header);
1674                 (void) printf("\n");
1675                 return;
1676         }
1677
1678         if (dump_opt['i'] != 0 || verbosity >= 2)
1679                 dump_intent_log(dmu_objset_zil(os));
1680
1681         if (dmu_objset_ds(os) != NULL)
1682                 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1683
1684         if (verbosity < 2)
1685                 return;
1686
1687         if (os->os_rootbp->blk_birth == 0)
1688                 return;
1689
1690         dump_object(os, 0, verbosity, &print_header);
1691         object_count = 0;
1692         if (DMU_USERUSED_DNODE(os) != NULL &&
1693             DMU_USERUSED_DNODE(os)->dn_type != 0) {
1694                 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1695                 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1696         }
1697
1698         object = 0;
1699         while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1700                 dump_object(os, object, verbosity, &print_header);
1701                 object_count++;
1702         }
1703
1704         ASSERT3U(object_count, ==, usedobjs);
1705
1706         (void) printf("\n");
1707
1708         if (error != ESRCH) {
1709                 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1710                 abort();
1711         }
1712 }
1713
1714 static void
1715 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
1716 {
1717         time_t timestamp = ub->ub_timestamp;
1718
1719         (void) printf("%s", header ? header : "");
1720         (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1721         (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1722         (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1723         (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1724         (void) printf("\ttimestamp = %llu UTC = %s",
1725             (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
1726         if (dump_opt['u'] >= 3) {
1727                 char blkbuf[BP_SPRINTF_LEN];
1728                 sprintf_blkptr(blkbuf, &ub->ub_rootbp);
1729                 (void) printf("\trootbp = %s\n", blkbuf);
1730         }
1731         (void) printf("%s", footer ? footer : "");
1732 }
1733
1734 static void
1735 dump_config(spa_t *spa)
1736 {
1737         dmu_buf_t *db;
1738         size_t nvsize = 0;
1739         int error = 0;
1740
1741
1742         error = dmu_bonus_hold(spa->spa_meta_objset,
1743             spa->spa_config_object, FTAG, &db);
1744
1745         if (error == 0) {
1746                 nvsize = *(uint64_t *)db->db_data;
1747                 dmu_buf_rele(db, FTAG);
1748
1749                 (void) printf("\nMOS Configuration:\n");
1750                 dump_packed_nvlist(spa->spa_meta_objset,
1751                     spa->spa_config_object, (void *)&nvsize, 1);
1752         } else {
1753                 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
1754                     (u_longlong_t)spa->spa_config_object, error);
1755         }
1756 }
1757
1758 static void
1759 dump_cachefile(const char *cachefile)
1760 {
1761         int fd;
1762         struct stat64 statbuf;
1763         char *buf;
1764         nvlist_t *config;
1765
1766         if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1767                 (void) printf("cannot open '%s': %s\n", cachefile,
1768                     strerror(errno));
1769                 exit(1);
1770         }
1771
1772         if (fstat64(fd, &statbuf) != 0) {
1773                 (void) printf("failed to stat '%s': %s\n", cachefile,
1774                     strerror(errno));
1775                 exit(1);
1776         }
1777
1778         if ((buf = malloc(statbuf.st_size)) == NULL) {
1779                 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
1780                     (u_longlong_t)statbuf.st_size);
1781                 exit(1);
1782         }
1783
1784         if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1785                 (void) fprintf(stderr, "failed to read %llu bytes\n",
1786                     (u_longlong_t)statbuf.st_size);
1787                 exit(1);
1788         }
1789
1790         (void) close(fd);
1791
1792         if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
1793                 (void) fprintf(stderr, "failed to unpack nvlist\n");
1794                 exit(1);
1795         }
1796
1797         free(buf);
1798
1799         dump_nvlist(config, 0);
1800
1801         nvlist_free(config);
1802 }
1803
1804 #define ZDB_MAX_UB_HEADER_SIZE 32
1805
1806 static void
1807 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
1808 {
1809         vdev_t vd;
1810         vdev_t *vdp = &vd;
1811         char header[ZDB_MAX_UB_HEADER_SIZE];
1812         int i;
1813
1814         vd.vdev_ashift = ashift;
1815         vdp->vdev_top = vdp;
1816
1817         for (i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
1818                 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
1819                 uberblock_t *ub = (void *)((char *)lbl + uoff);
1820
1821                 if (uberblock_verify(ub))
1822                         continue;
1823                 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
1824                     "Uberblock[%d]\n", i);
1825                 dump_uberblock(ub, header, "");
1826         }
1827 }
1828
1829 static void
1830 dump_label(const char *dev)
1831 {
1832         int fd;
1833         vdev_label_t label;
1834         char *path, *buf = label.vl_vdev_phys.vp_nvlist;
1835         size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
1836         struct stat64 statbuf;
1837         uint64_t psize, ashift;
1838         int len = strlen(dev) + 1;
1839         int l;
1840
1841         if (strncmp(dev, "/dev/dsk/", 9) == 0) {
1842                 len++;
1843                 path = malloc(len);
1844                 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
1845         } else {
1846                 path = strdup(dev);
1847         }
1848
1849         if ((fd = open64(path, O_RDONLY)) < 0) {
1850                 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
1851                 free(path);
1852                 exit(1);
1853         }
1854
1855         if (fstat64_blk(fd, &statbuf) != 0) {
1856                 (void) printf("failed to stat '%s': %s\n", path,
1857                     strerror(errno));
1858                 free(path);
1859                 (void) close(fd);
1860                 exit(1);
1861         }
1862
1863         psize = statbuf.st_size;
1864         psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
1865
1866         for (l = 0; l < VDEV_LABELS; l++) {
1867                 nvlist_t *config = NULL;
1868
1869                 (void) printf("--------------------------------------------\n");
1870                 (void) printf("LABEL %d\n", l);
1871                 (void) printf("--------------------------------------------\n");
1872
1873                 if (pread64(fd, &label, sizeof (label),
1874                     vdev_label_offset(psize, l, 0)) != sizeof (label)) {
1875                         (void) printf("failed to read label %d\n", l);
1876                         continue;
1877                 }
1878
1879                 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
1880                         (void) printf("failed to unpack label %d\n", l);
1881                         ashift = SPA_MINBLOCKSHIFT;
1882                 } else {
1883                         nvlist_t *vdev_tree = NULL;
1884
1885                         dump_nvlist(config, 4);
1886                         if ((nvlist_lookup_nvlist(config,
1887                             ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
1888                             (nvlist_lookup_uint64(vdev_tree,
1889                             ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
1890                                 ashift = SPA_MINBLOCKSHIFT;
1891                         nvlist_free(config);
1892                 }
1893                 if (dump_opt['u'])
1894                         dump_label_uberblocks(&label, ashift);
1895         }
1896
1897         free(path);
1898         (void) close(fd);
1899 }
1900
1901 /*ARGSUSED*/
1902 static int
1903 dump_one_dir(const char *dsname, void *arg)
1904 {
1905         int error;
1906         objset_t *os;
1907
1908         error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
1909         if (error) {
1910                 (void) printf("Could not open %s, error %d\n", dsname, error);
1911                 return (0);
1912         }
1913         dump_dir(os);
1914         dmu_objset_disown(os, FTAG);
1915         fuid_table_destroy();
1916         sa_loaded = B_FALSE;
1917         return (0);
1918 }
1919
1920 /*
1921  * Block statistics.
1922  */
1923 typedef struct zdb_blkstats {
1924         uint64_t        zb_asize;
1925         uint64_t        zb_lsize;
1926         uint64_t        zb_psize;
1927         uint64_t        zb_count;
1928 } zdb_blkstats_t;
1929
1930 /*
1931  * Extended object types to report deferred frees and dedup auto-ditto blocks.
1932  */
1933 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
1934 #define ZDB_OT_DITTO    (DMU_OT_NUMTYPES + 1)
1935 #define ZDB_OT_OTHER    (DMU_OT_NUMTYPES + 2)
1936 #define ZDB_OT_TOTAL    (DMU_OT_NUMTYPES + 3)
1937
1938 static char *zdb_ot_extname[] = {
1939         "deferred free",
1940         "dedup ditto",
1941         "other",
1942         "Total",
1943 };
1944
1945 #define ZB_TOTAL        DN_MAX_LEVELS
1946
1947 typedef struct zdb_cb {
1948         zdb_blkstats_t  zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
1949         uint64_t        zcb_dedup_asize;
1950         uint64_t        zcb_dedup_blocks;
1951         uint64_t        zcb_errors[256];
1952         int             zcb_readfails;
1953         int             zcb_haderrors;
1954         spa_t           *zcb_spa;
1955 } zdb_cb_t;
1956
1957 static void
1958 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
1959     dmu_object_type_t type)
1960 {
1961         uint64_t refcnt = 0;
1962         int i;
1963
1964         ASSERT(type < ZDB_OT_TOTAL);
1965
1966         if (zilog && zil_bp_tree_add(zilog, bp) != 0)
1967                 return;
1968
1969         for (i = 0; i < 4; i++) {
1970                 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
1971                 int t = (i & 1) ? type : ZDB_OT_TOTAL;
1972                 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
1973
1974                 zb->zb_asize += BP_GET_ASIZE(bp);
1975                 zb->zb_lsize += BP_GET_LSIZE(bp);
1976                 zb->zb_psize += BP_GET_PSIZE(bp);
1977                 zb->zb_count++;
1978         }
1979
1980         if (dump_opt['L'])
1981                 return;
1982
1983         if (BP_GET_DEDUP(bp)) {
1984                 ddt_t *ddt;
1985                 ddt_entry_t *dde;
1986
1987                 ddt = ddt_select(zcb->zcb_spa, bp);
1988                 ddt_enter(ddt);
1989                 dde = ddt_lookup(ddt, bp, B_FALSE);
1990
1991                 if (dde == NULL) {
1992                         refcnt = 0;
1993                 } else {
1994                         ddt_phys_t *ddp = ddt_phys_select(dde, bp);
1995                         ddt_phys_decref(ddp);
1996                         refcnt = ddp->ddp_refcnt;
1997                         if (ddt_phys_total_refcnt(dde) == 0)
1998                                 ddt_remove(ddt, dde);
1999                 }
2000                 ddt_exit(ddt);
2001         }
2002
2003         VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2004             refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2005             bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2006 }
2007
2008 /* ARGSUSED */
2009 static int
2010 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, arc_buf_t *pbuf,
2011     const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2012 {
2013         zdb_cb_t *zcb = arg;
2014         char blkbuf[BP_SPRINTF_LEN];
2015         dmu_object_type_t type;
2016         boolean_t is_metadata;
2017
2018         if (bp == NULL)
2019                 return (0);
2020
2021         type = BP_GET_TYPE(bp);
2022
2023         zdb_count_block(zcb, zilog, bp,
2024             (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2025
2026         is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2027
2028         if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) {
2029                 int ioerr;
2030                 size_t size = BP_GET_PSIZE(bp);
2031                 void *data = malloc(size);
2032                 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2033
2034                 /* If it's an intent log block, failure is expected. */
2035                 if (zb->zb_level == ZB_ZIL_LEVEL)
2036                         flags |= ZIO_FLAG_SPECULATIVE;
2037
2038                 ioerr = zio_wait(zio_read(NULL, spa, bp, data, size,
2039                     NULL, NULL, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2040
2041                 free(data);
2042
2043                 if (ioerr && !(flags & ZIO_FLAG_SPECULATIVE)) {
2044                         zcb->zcb_haderrors = 1;
2045                         zcb->zcb_errors[ioerr]++;
2046
2047                         if (dump_opt['b'] >= 2)
2048                                 sprintf_blkptr(blkbuf, bp);
2049                         else
2050                                 blkbuf[0] = '\0';
2051
2052                         (void) printf("zdb_blkptr_cb: "
2053                             "Got error %d reading "
2054                             "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2055                             ioerr,
2056                             (u_longlong_t)zb->zb_objset,
2057                             (u_longlong_t)zb->zb_object,
2058                             (u_longlong_t)zb->zb_level,
2059                             (u_longlong_t)zb->zb_blkid,
2060                             blkbuf);
2061                 }
2062         }
2063
2064         zcb->zcb_readfails = 0;
2065
2066         if (dump_opt['b'] >= 4) {
2067                 sprintf_blkptr(blkbuf, bp);
2068                 (void) printf("objset %llu object %llu "
2069                     "level %lld offset 0x%llx %s\n",
2070                     (u_longlong_t)zb->zb_objset,
2071                     (u_longlong_t)zb->zb_object,
2072                     (longlong_t)zb->zb_level,
2073                     (u_longlong_t)blkid2offset(dnp, bp, zb),
2074                     blkbuf);
2075         }
2076
2077         return (0);
2078 }
2079
2080 static void
2081 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size)
2082 {
2083         vdev_t *vd = sm->sm_ppd;
2084
2085         (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2086             (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2087 }
2088
2089 /* ARGSUSED */
2090 static void
2091 zdb_space_map_load(space_map_t *sm)
2092 {
2093 }
2094
2095 static void
2096 zdb_space_map_unload(space_map_t *sm)
2097 {
2098         space_map_vacate(sm, zdb_leak, sm);
2099 }
2100
2101 /* ARGSUSED */
2102 static void
2103 zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size)
2104 {
2105 }
2106
2107 static space_map_ops_t zdb_space_map_ops = {
2108         zdb_space_map_load,
2109         zdb_space_map_unload,
2110         NULL,   /* alloc */
2111         zdb_space_map_claim,
2112         NULL,   /* free */
2113         NULL    /* maxsize */
2114 };
2115
2116 static void
2117 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2118 {
2119         ddt_bookmark_t ddb = { 0 };
2120         ddt_entry_t dde;
2121         int error;
2122         int p;
2123
2124         while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2125                 blkptr_t blk;
2126                 ddt_phys_t *ddp = dde.dde_phys;
2127
2128                 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2129                         return;
2130
2131                 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2132
2133                 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2134                         if (ddp->ddp_phys_birth == 0)
2135                                 continue;
2136                         ddt_bp_create(ddb.ddb_checksum,
2137                             &dde.dde_key, ddp, &blk);
2138                         if (p == DDT_PHYS_DITTO) {
2139                                 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2140                         } else {
2141                                 zcb->zcb_dedup_asize +=
2142                                     BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2143                                 zcb->zcb_dedup_blocks++;
2144                         }
2145                 }
2146                 if (!dump_opt['L']) {
2147                         ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2148                         ddt_enter(ddt);
2149                         VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2150                         ddt_exit(ddt);
2151                 }
2152         }
2153
2154         ASSERT(error == ENOENT);
2155 }
2156
2157 static void
2158 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2159 {
2160         zcb->zcb_spa = spa;
2161         int c, m;
2162
2163         if (!dump_opt['L']) {
2164                 vdev_t *rvd = spa->spa_root_vdev;
2165                 for (c = 0; c < rvd->vdev_children; c++) {
2166                         vdev_t *vd = rvd->vdev_child[c];
2167                         for (m = 0; m < vd->vdev_ms_count; m++) {
2168                                 metaslab_t *msp = vd->vdev_ms[m];
2169                                 mutex_enter(&msp->ms_lock);
2170                                 space_map_unload(&msp->ms_map);
2171                                 VERIFY(space_map_load(&msp->ms_map,
2172                                     &zdb_space_map_ops, SM_ALLOC, &msp->ms_smo,
2173                                     spa->spa_meta_objset) == 0);
2174                                 msp->ms_map.sm_ppd = vd;
2175                                 mutex_exit(&msp->ms_lock);
2176                         }
2177                 }
2178         }
2179
2180         spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2181
2182         zdb_ddt_leak_init(spa, zcb);
2183
2184         spa_config_exit(spa, SCL_CONFIG, FTAG);
2185 }
2186
2187 static void
2188 zdb_leak_fini(spa_t *spa)
2189 {
2190         int c, m;
2191
2192         if (!dump_opt['L']) {
2193                 vdev_t *rvd = spa->spa_root_vdev;
2194                 for (c = 0; c < rvd->vdev_children; c++) {
2195                         vdev_t *vd = rvd->vdev_child[c];
2196                         for (m = 0; m < vd->vdev_ms_count; m++) {
2197                                 metaslab_t *msp = vd->vdev_ms[m];
2198                                 mutex_enter(&msp->ms_lock);
2199                                 space_map_unload(&msp->ms_map);
2200                                 mutex_exit(&msp->ms_lock);
2201                         }
2202                 }
2203         }
2204 }
2205
2206 /* ARGSUSED */
2207 static int
2208 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2209 {
2210         zdb_cb_t *zcb = arg;
2211
2212         if (dump_opt['b'] >= 4) {
2213                 char blkbuf[BP_SPRINTF_LEN];
2214                 sprintf_blkptr(blkbuf, bp);
2215                 (void) printf("[%s] %s\n",
2216                     "deferred free", blkbuf);
2217         }
2218         zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2219         return (0);
2220 }
2221
2222 static int
2223 dump_block_stats(spa_t *spa)
2224 {
2225         zdb_cb_t zcb;
2226         zdb_blkstats_t *zb, *tzb;
2227         uint64_t norm_alloc, norm_space, total_alloc, total_found;
2228         int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2229         int leaks = 0;
2230         int e;
2231
2232         (void) printf("\nTraversing all blocks %s%s%s%s%s...\n",
2233             (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2234             (dump_opt['c'] == 1) ? "metadata " : "",
2235             dump_opt['c'] ? "checksums " : "",
2236             (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2237             !dump_opt['L'] ? "nothing leaked " : "");
2238
2239         /*
2240          * Load all space maps as SM_ALLOC maps, then traverse the pool
2241          * claiming each block we discover.  If the pool is perfectly
2242          * consistent, the space maps will be empty when we're done.
2243          * Anything left over is a leak; any block we can't claim (because
2244          * it's not part of any space map) is a double allocation,
2245          * reference to a freed block, or an unclaimed log block.
2246          */
2247         bzero(&zcb, sizeof(zdb_cb_t));
2248         zdb_leak_init(spa, &zcb);
2249
2250         /*
2251          * If there's a deferred-free bplist, process that first.
2252          */
2253         (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2254             count_block_cb, &zcb, NULL);
2255         (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2256             count_block_cb, &zcb, NULL);
2257         if (spa_feature_is_active(spa,
2258             &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) {
2259                 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2260                     spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2261                     &zcb, NULL));
2262         }
2263
2264         if (dump_opt['c'] > 1)
2265                 flags |= TRAVERSE_PREFETCH_DATA;
2266
2267         zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2268
2269         if (zcb.zcb_haderrors) {
2270                 (void) printf("\nError counts:\n\n");
2271                 (void) printf("\t%5s  %s\n", "errno", "count");
2272                 for (e = 0; e < 256; e++) {
2273                         if (zcb.zcb_errors[e] != 0) {
2274                                 (void) printf("\t%5d  %llu\n",
2275                                     e, (u_longlong_t)zcb.zcb_errors[e]);
2276                         }
2277                 }
2278         }
2279
2280         /*
2281          * Report any leaked segments.
2282          */
2283         zdb_leak_fini(spa);
2284
2285         tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2286
2287         norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2288         norm_space = metaslab_class_get_space(spa_normal_class(spa));
2289
2290         total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2291         total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2292
2293         if (total_found == total_alloc) {
2294                 if (!dump_opt['L'])
2295                         (void) printf("\n\tNo leaks (block sum matches space"
2296                             " maps exactly)\n");
2297         } else {
2298                 (void) printf("block traversal size %llu != alloc %llu "
2299                     "(%s %lld)\n",
2300                     (u_longlong_t)total_found,
2301                     (u_longlong_t)total_alloc,
2302                     (dump_opt['L']) ? "unreachable" : "leaked",
2303                     (longlong_t)(total_alloc - total_found));
2304                 leaks = 1;
2305         }
2306
2307         if (tzb->zb_count == 0)
2308                 return (2);
2309
2310         (void) printf("\n");
2311         (void) printf("\tbp count:      %10llu\n",
2312             (u_longlong_t)tzb->zb_count);
2313         (void) printf("\tbp logical:    %10llu      avg: %6llu\n",
2314             (u_longlong_t)tzb->zb_lsize,
2315             (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2316         (void) printf("\tbp physical:   %10llu      avg:"
2317             " %6llu     compression: %6.2f\n",
2318             (u_longlong_t)tzb->zb_psize,
2319             (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2320             (double)tzb->zb_lsize / tzb->zb_psize);
2321         (void) printf("\tbp allocated:  %10llu      avg:"
2322             " %6llu     compression: %6.2f\n",
2323             (u_longlong_t)tzb->zb_asize,
2324             (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2325             (double)tzb->zb_lsize / tzb->zb_asize);
2326         (void) printf("\tbp deduped:    %10llu    ref>1:"
2327             " %6llu   deduplication: %6.2f\n",
2328             (u_longlong_t)zcb.zcb_dedup_asize,
2329             (u_longlong_t)zcb.zcb_dedup_blocks,
2330             (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2331         (void) printf("\tSPA allocated: %10llu     used: %5.2f%%\n",
2332             (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2333
2334         if (dump_opt['b'] >= 2) {
2335                 int l, t, level;
2336                 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2337                     "\t  avg\t comp\t%%Total\tType\n");
2338
2339                 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2340                         char csize[32], lsize[32], psize[32], asize[32];
2341                         char avg[32];
2342                         char *typename;
2343
2344                         if (t < DMU_OT_NUMTYPES)
2345                                 typename = dmu_ot[t].ot_name;
2346                         else
2347                                 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2348
2349                         if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2350                                 (void) printf("%6s\t%5s\t%5s\t%5s"
2351                                     "\t%5s\t%5s\t%6s\t%s\n",
2352                                     "-",
2353                                     "-",
2354                                     "-",
2355                                     "-",
2356                                     "-",
2357                                     "-",
2358                                     "-",
2359                                     typename);
2360                                 continue;
2361                         }
2362
2363                         for (l = ZB_TOTAL - 1; l >= -1; l--) {
2364                                 level = (l == -1 ? ZB_TOTAL : l);
2365                                 zb = &zcb.zcb_type[level][t];
2366
2367                                 if (zb->zb_asize == 0)
2368                                         continue;
2369
2370                                 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2371                                         continue;
2372
2373                                 if (level == 0 && zb->zb_asize ==
2374                                     zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2375                                         continue;
2376
2377                                 zdb_nicenum(zb->zb_count, csize);
2378                                 zdb_nicenum(zb->zb_lsize, lsize);
2379                                 zdb_nicenum(zb->zb_psize, psize);
2380                                 zdb_nicenum(zb->zb_asize, asize);
2381                                 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2382
2383                                 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2384                                     "\t%5.2f\t%6.2f\t",
2385                                     csize, lsize, psize, asize, avg,
2386                                     (double)zb->zb_lsize / zb->zb_psize,
2387                                     100.0 * zb->zb_asize / tzb->zb_asize);
2388
2389                                 if (level == ZB_TOTAL)
2390                                         (void) printf("%s\n", typename);
2391                                 else
2392                                         (void) printf("    L%d %s\n",
2393                                             level, typename);
2394                         }
2395                 }
2396         }
2397
2398         (void) printf("\n");
2399
2400         if (leaks)
2401                 return (2);
2402
2403         if (zcb.zcb_haderrors)
2404                 return (3);
2405
2406         return (0);
2407 }
2408
2409 typedef struct zdb_ddt_entry {
2410         ddt_key_t       zdde_key;
2411         uint64_t        zdde_ref_blocks;
2412         uint64_t        zdde_ref_lsize;
2413         uint64_t        zdde_ref_psize;
2414         uint64_t        zdde_ref_dsize;
2415         avl_node_t      zdde_node;
2416 } zdb_ddt_entry_t;
2417
2418 /* ARGSUSED */
2419 static int
2420 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2421     arc_buf_t *pbuf, const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg)
2422 {
2423         avl_tree_t *t = arg;
2424         avl_index_t where;
2425         zdb_ddt_entry_t *zdde, zdde_search;
2426
2427         if (bp == NULL)
2428                 return (0);
2429
2430         if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2431                 (void) printf("traversing objset %llu, %llu objects, "
2432                     "%lu blocks so far\n",
2433                     (u_longlong_t)zb->zb_objset,
2434                     (u_longlong_t)bp->blk_fill,
2435                     avl_numnodes(t));
2436         }
2437
2438         if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2439             BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2440                 return (0);
2441
2442         ddt_key_fill(&zdde_search.zdde_key, bp);
2443
2444         zdde = avl_find(t, &zdde_search, &where);
2445
2446         if (zdde == NULL) {
2447                 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2448                 zdde->zdde_key = zdde_search.zdde_key;
2449                 avl_insert(t, zdde, where);
2450         }
2451
2452         zdde->zdde_ref_blocks += 1;
2453         zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2454         zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2455         zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2456
2457         return (0);
2458 }
2459
2460 static void
2461 dump_simulated_ddt(spa_t *spa)
2462 {
2463         avl_tree_t t;
2464         void *cookie = NULL;
2465         zdb_ddt_entry_t *zdde;
2466         ddt_histogram_t ddh_total;
2467         ddt_stat_t dds_total;
2468
2469         bzero(&ddh_total, sizeof (ddt_histogram_t));
2470         bzero(&dds_total, sizeof (ddt_stat_t));
2471
2472         avl_create(&t, ddt_entry_compare,
2473             sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2474
2475         spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2476
2477         (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2478             zdb_ddt_add_cb, &t);
2479
2480         spa_config_exit(spa, SCL_CONFIG, FTAG);
2481
2482         while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2483                 ddt_stat_t dds;
2484                 uint64_t refcnt = zdde->zdde_ref_blocks;
2485                 ASSERT(refcnt != 0);
2486
2487                 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2488                 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2489                 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2490                 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2491
2492                 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2493                 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2494                 dds.dds_ref_psize = zdde->zdde_ref_psize;
2495                 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2496
2497                 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0);
2498
2499                 umem_free(zdde, sizeof (*zdde));
2500         }
2501
2502         avl_destroy(&t);
2503
2504         ddt_histogram_stat(&dds_total, &ddh_total);
2505
2506         (void) printf("Simulated DDT histogram:\n");
2507
2508         zpool_dump_ddt(&dds_total, &ddh_total);
2509
2510         dump_dedup_ratio(&dds_total);
2511 }
2512
2513 static void
2514 dump_zpool(spa_t *spa)
2515 {
2516         dsl_pool_t *dp = spa_get_dsl(spa);
2517         int rc = 0;
2518
2519         if (dump_opt['S']) {
2520                 dump_simulated_ddt(spa);
2521                 return;
2522         }
2523
2524         if (!dump_opt['e'] && dump_opt['C'] > 1) {
2525                 (void) printf("\nCached configuration:\n");
2526                 dump_nvlist(spa->spa_config, 8);
2527         }
2528
2529         if (dump_opt['C'])
2530                 dump_config(spa);
2531
2532         if (dump_opt['u'])
2533                 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2534
2535         if (dump_opt['D'])
2536                 dump_all_ddts(spa);
2537
2538         if (dump_opt['d'] > 2 || dump_opt['m'])
2539                 dump_metaslabs(spa);
2540
2541         if (dump_opt['d'] || dump_opt['i']) {
2542                 dump_dir(dp->dp_meta_objset);
2543                 if (dump_opt['d'] >= 3) {
2544                         dump_bpobj(&spa->spa_deferred_bpobj, "Deferred frees");
2545                         if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2546                                 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2547                                     "Pool snapshot frees");
2548                         }
2549
2550                         if (spa_feature_is_active(spa,
2551                             &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) {
2552                                 dump_bptree(spa->spa_meta_objset,
2553                                     spa->spa_dsl_pool->dp_bptree_obj,
2554                                     "Pool dataset frees");
2555                         }
2556                         dump_dtl(spa->spa_root_vdev, 0);
2557                 }
2558                 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
2559                     NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
2560         }
2561         if (dump_opt['b'] || dump_opt['c'])
2562                 rc = dump_block_stats(spa);
2563
2564         if (dump_opt['s'])
2565                 show_pool_stats(spa);
2566
2567         if (dump_opt['h'])
2568                 dump_history(spa);
2569
2570         if (rc != 0)
2571                 exit(rc);
2572 }
2573
2574 #define ZDB_FLAG_CHECKSUM       0x0001
2575 #define ZDB_FLAG_DECOMPRESS     0x0002
2576 #define ZDB_FLAG_BSWAP          0x0004
2577 #define ZDB_FLAG_GBH            0x0008
2578 #define ZDB_FLAG_INDIRECT       0x0010
2579 #define ZDB_FLAG_PHYS           0x0020
2580 #define ZDB_FLAG_RAW            0x0040
2581 #define ZDB_FLAG_PRINT_BLKPTR   0x0080
2582
2583 int flagbits[256];
2584
2585 static void
2586 zdb_print_blkptr(blkptr_t *bp, int flags)
2587 {
2588         char blkbuf[BP_SPRINTF_LEN];
2589
2590         if (flags & ZDB_FLAG_BSWAP)
2591                 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
2592
2593         sprintf_blkptr(blkbuf, bp);
2594         (void) printf("%s\n", blkbuf);
2595 }
2596
2597 static void
2598 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
2599 {
2600         int i;
2601
2602         for (i = 0; i < nbps; i++)
2603                 zdb_print_blkptr(&bp[i], flags);
2604 }
2605
2606 static void
2607 zdb_dump_gbh(void *buf, int flags)
2608 {
2609         zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
2610 }
2611
2612 static void
2613 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
2614 {
2615         if (flags & ZDB_FLAG_BSWAP)
2616                 byteswap_uint64_array(buf, size);
2617         VERIFY(write(fileno(stdout), buf, size) == size);
2618 }
2619
2620 static void
2621 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
2622 {
2623         uint64_t *d = (uint64_t *)buf;
2624         int nwords = size / sizeof (uint64_t);
2625         int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
2626         int i, j;
2627         char *hdr, *c;
2628
2629
2630         if (do_bswap)
2631                 hdr = " 7 6 5 4 3 2 1 0   f e d c b a 9 8";
2632         else
2633                 hdr = " 0 1 2 3 4 5 6 7   8 9 a b c d e f";
2634
2635         (void) printf("\n%s\n%6s   %s  0123456789abcdef\n", label, "", hdr);
2636
2637         for (i = 0; i < nwords; i += 2) {
2638                 (void) printf("%06llx:  %016llx  %016llx  ",
2639                     (u_longlong_t)(i * sizeof (uint64_t)),
2640                     (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
2641                     (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
2642
2643                 c = (char *)&d[i];
2644                 for (j = 0; j < 2 * sizeof (uint64_t); j++)
2645                         (void) printf("%c", isprint(c[j]) ? c[j] : '.');
2646                 (void) printf("\n");
2647         }
2648 }
2649
2650 /*
2651  * There are two acceptable formats:
2652  *      leaf_name         - For example: c1t0d0 or /tmp/ztest.0a
2653  *      child[.child]*    - For example: 0.1.1
2654  *
2655  * The second form can be used to specify arbitrary vdevs anywhere
2656  * in the heirarchy.  For example, in a pool with a mirror of
2657  * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
2658  */
2659 static vdev_t *
2660 zdb_vdev_lookup(vdev_t *vdev, char *path)
2661 {
2662         char *s, *p, *q;
2663         int i;
2664
2665         if (vdev == NULL)
2666                 return (NULL);
2667
2668         /* First, assume the x.x.x.x format */
2669         i = (int)strtoul(path, &s, 10);
2670         if (s == path || (s && *s != '.' && *s != '\0'))
2671                 goto name;
2672         if (i < 0 || i >= vdev->vdev_children)
2673                 return (NULL);
2674
2675         vdev = vdev->vdev_child[i];
2676         if (*s == '\0')
2677                 return (vdev);
2678         return (zdb_vdev_lookup(vdev, s+1));
2679
2680 name:
2681         for (i = 0; i < vdev->vdev_children; i++) {
2682                 vdev_t *vc = vdev->vdev_child[i];
2683
2684                 if (vc->vdev_path == NULL) {
2685                         vc = zdb_vdev_lookup(vc, path);
2686                         if (vc == NULL)
2687                                 continue;
2688                         else
2689                                 return (vc);
2690                 }
2691
2692                 p = strrchr(vc->vdev_path, '/');
2693                 p = p ? p + 1 : vc->vdev_path;
2694                 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
2695
2696                 if (strcmp(vc->vdev_path, path) == 0)
2697                         return (vc);
2698                 if (strcmp(p, path) == 0)
2699                         return (vc);
2700                 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
2701                         return (vc);
2702         }
2703
2704         return (NULL);
2705 }
2706
2707 /*
2708  * Read a block from a pool and print it out.  The syntax of the
2709  * block descriptor is:
2710  *
2711  *      pool:vdev_specifier:offset:size[:flags]
2712  *
2713  *      pool           - The name of the pool you wish to read from
2714  *      vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
2715  *      offset         - offset, in hex, in bytes
2716  *      size           - Amount of data to read, in hex, in bytes
2717  *      flags          - A string of characters specifying options
2718  *               b: Decode a blkptr at given offset within block
2719  *              *c: Calculate and display checksums
2720  *               d: Decompress data before dumping
2721  *               e: Byteswap data before dumping
2722  *               g: Display data as a gang block header
2723  *               i: Display as an indirect block
2724  *               p: Do I/O to physical offset
2725  *               r: Dump raw data to stdout
2726  *
2727  *              * = not yet implemented
2728  */
2729 static void
2730 zdb_read_block(char *thing, spa_t *spa)
2731 {
2732         blkptr_t blk, *bp = &blk;
2733         dva_t *dva = bp->blk_dva;
2734         int flags = 0;
2735         uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
2736         zio_t *zio;
2737         vdev_t *vd;
2738         void *pbuf, *lbuf, *buf;
2739         char *s, *p, *dup, *vdev, *flagstr;
2740         int i, error;
2741
2742         dup = strdup(thing);
2743         s = strtok(dup, ":");
2744         vdev = s ? s : "";
2745         s = strtok(NULL, ":");
2746         offset = strtoull(s ? s : "", NULL, 16);
2747         s = strtok(NULL, ":");
2748         size = strtoull(s ? s : "", NULL, 16);
2749         s = strtok(NULL, ":");
2750         flagstr = s ? s : "";
2751
2752         s = NULL;
2753         if (size == 0)
2754                 s = "size must not be zero";
2755         if (!IS_P2ALIGNED(size, DEV_BSIZE))
2756                 s = "size must be a multiple of sector size";
2757         if (!IS_P2ALIGNED(offset, DEV_BSIZE))
2758                 s = "offset must be a multiple of sector size";
2759         if (s) {
2760                 (void) printf("Invalid block specifier: %s  - %s\n", thing, s);
2761                 free(dup);
2762                 return;
2763         }
2764
2765         for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
2766                 for (i = 0; flagstr[i]; i++) {
2767                         int bit = flagbits[(uchar_t)flagstr[i]];
2768
2769                         if (bit == 0) {
2770                                 (void) printf("***Invalid flag: %c\n",
2771                                     flagstr[i]);
2772                                 continue;
2773                         }
2774                         flags |= bit;
2775
2776                         /* If it's not something with an argument, keep going */
2777                         if ((bit & (ZDB_FLAG_CHECKSUM |
2778                             ZDB_FLAG_PRINT_BLKPTR)) == 0)
2779                                 continue;
2780
2781                         p = &flagstr[i + 1];
2782                         if (bit == ZDB_FLAG_PRINT_BLKPTR)
2783                                 blkptr_offset = strtoull(p, &p, 16);
2784                         if (*p != ':' && *p != '\0') {
2785                                 (void) printf("***Invalid flag arg: '%s'\n", s);
2786                                 free(dup);
2787                                 return;
2788                         }
2789                 }
2790         }
2791
2792         vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
2793         if (vd == NULL) {
2794                 (void) printf("***Invalid vdev: %s\n", vdev);
2795                 free(dup);
2796                 return;
2797         } else {
2798                 if (vd->vdev_path)
2799                         (void) fprintf(stderr, "Found vdev: %s\n",
2800                             vd->vdev_path);
2801                 else
2802                         (void) fprintf(stderr, "Found vdev type: %s\n",
2803                             vd->vdev_ops->vdev_op_type);
2804         }
2805
2806         psize = size;
2807         lsize = size;
2808
2809         pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2810         lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2811
2812         BP_ZERO(bp);
2813
2814         DVA_SET_VDEV(&dva[0], vd->vdev_id);
2815         DVA_SET_OFFSET(&dva[0], offset);
2816         DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
2817         DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
2818
2819         BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
2820
2821         BP_SET_LSIZE(bp, lsize);
2822         BP_SET_PSIZE(bp, psize);
2823         BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
2824         BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
2825         BP_SET_TYPE(bp, DMU_OT_NONE);
2826         BP_SET_LEVEL(bp, 0);
2827         BP_SET_DEDUP(bp, 0);
2828         BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
2829
2830         spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
2831         zio = zio_root(spa, NULL, NULL, 0);
2832
2833         if (vd == vd->vdev_top) {
2834                 /*
2835                  * Treat this as a normal block read.
2836                  */
2837                 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
2838                     ZIO_PRIORITY_SYNC_READ,
2839                     ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
2840         } else {
2841                 /*
2842                  * Treat this as a vdev child I/O.
2843                  */
2844                 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
2845                     ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
2846                     ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
2847                     ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
2848                     ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
2849         }
2850
2851         error = zio_wait(zio);
2852         spa_config_exit(spa, SCL_STATE, FTAG);
2853
2854         if (error) {
2855                 (void) printf("Read of %s failed, error: %d\n", thing, error);
2856                 goto out;
2857         }
2858
2859         if (flags & ZDB_FLAG_DECOMPRESS) {
2860                 /*
2861                  * We don't know how the data was compressed, so just try
2862                  * every decompress function at every inflated blocksize.
2863                  */
2864                 enum zio_compress c;
2865                 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2866                 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
2867
2868                 bcopy(pbuf, pbuf2, psize);
2869
2870                 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
2871                     SPA_MAXBLOCKSIZE - psize) == 0);
2872
2873                 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
2874                     SPA_MAXBLOCKSIZE - psize) == 0);
2875
2876                 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
2877                     lsize -= SPA_MINBLOCKSIZE) {
2878                         for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
2879                                 if (zio_decompress_data(c, pbuf, lbuf,
2880                                     psize, lsize) == 0 &&
2881                                     zio_decompress_data(c, pbuf2, lbuf2,
2882                                     psize, lsize) == 0 &&
2883                                     bcmp(lbuf, lbuf2, lsize) == 0)
2884                                         break;
2885                         }
2886                         if (c != ZIO_COMPRESS_FUNCTIONS)
2887                                 break;
2888                         lsize -= SPA_MINBLOCKSIZE;
2889                 }
2890
2891                 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
2892                 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
2893
2894                 if (lsize <= psize) {
2895                         (void) printf("Decompress of %s failed\n", thing);
2896                         goto out;
2897                 }
2898                 buf = lbuf;
2899                 size = lsize;
2900         } else {
2901                 buf = pbuf;
2902                 size = psize;
2903         }
2904
2905         if (flags & ZDB_FLAG_PRINT_BLKPTR)
2906                 zdb_print_blkptr((blkptr_t *)(void *)
2907                     ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
2908         else if (flags & ZDB_FLAG_RAW)
2909                 zdb_dump_block_raw(buf, size, flags);
2910         else if (flags & ZDB_FLAG_INDIRECT)
2911                 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
2912                     flags);
2913         else if (flags & ZDB_FLAG_GBH)
2914                 zdb_dump_gbh(buf, flags);
2915         else
2916                 zdb_dump_block(thing, buf, size, flags);
2917
2918 out:
2919         umem_free(pbuf, SPA_MAXBLOCKSIZE);
2920         umem_free(lbuf, SPA_MAXBLOCKSIZE);
2921         free(dup);
2922 }
2923
2924 static boolean_t
2925 pool_match(nvlist_t *cfg, char *tgt)
2926 {
2927         uint64_t v, guid = strtoull(tgt, NULL, 0);
2928         char *s;
2929
2930         if (guid != 0) {
2931                 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
2932                         return (v == guid);
2933         } else {
2934                 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
2935                         return (strcmp(s, tgt) == 0);
2936         }
2937         return (B_FALSE);
2938 }
2939
2940 static char *
2941 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
2942 {
2943         nvlist_t *pools;
2944         nvlist_t *match = NULL;
2945         char *name = NULL;
2946         char *sepp = NULL;
2947         char sep = 0;
2948         int count = 0;
2949         importargs_t args = { 0 };
2950
2951         args.paths = dirc;
2952         args.path = dirv;
2953         args.can_be_active = B_TRUE;
2954
2955         if ((sepp = strpbrk(*target, "/@")) != NULL) {
2956                 sep = *sepp;
2957                 *sepp = '\0';
2958         }
2959
2960         pools = zpool_search_import(g_zfs, &args);
2961
2962         if (pools != NULL) {
2963                 nvpair_t *elem = NULL;
2964                 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
2965                         verify(nvpair_value_nvlist(elem, configp) == 0);
2966                         if (pool_match(*configp, *target)) {
2967                                 count++;
2968                                 if (match != NULL) {
2969                                         /* print previously found config */
2970                                         if (name != NULL) {
2971                                                 (void) printf("%s\n", name);
2972                                                 dump_nvlist(match, 8);
2973                                                 name = NULL;
2974                                         }
2975                                         (void) printf("%s\n",
2976                                             nvpair_name(elem));
2977                                         dump_nvlist(*configp, 8);
2978                                 } else {
2979                                         match = *configp;
2980                                         name = nvpair_name(elem);
2981                                 }
2982                         }
2983                 }
2984         }
2985         if (count > 1)
2986                 (void) fatal("\tMatched %d pools - use pool GUID "
2987                     "instead of pool name or \n"
2988                     "\tpool name part of a dataset name to select pool", count);
2989
2990         if (sepp)
2991                 *sepp = sep;
2992         /*
2993          * If pool GUID was specified for pool id, replace it with pool name
2994          */
2995         if (name && (strstr(*target, name) != *target)) {
2996                 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
2997
2998                 *target = umem_alloc(sz, UMEM_NOFAIL);
2999                 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3000         }
3001
3002         *configp = name ? match : NULL;
3003
3004         return (name);
3005 }
3006
3007 int
3008 main(int argc, char **argv)
3009 {
3010         int i, c;
3011         struct rlimit rl = { 1024, 1024 };
3012         spa_t *spa = NULL;
3013         objset_t *os = NULL;
3014         int dump_all = 1;
3015         int verbose = 0;
3016         int error = 0;
3017         char **searchdirs = NULL;
3018         int nsearch = 0;
3019         char *target;
3020         nvlist_t *policy = NULL;
3021         uint64_t max_txg = UINT64_MAX;
3022         int rewind = ZPOOL_NEVER_REWIND;
3023
3024         (void) setrlimit(RLIMIT_NOFILE, &rl);
3025         (void) enable_extended_FILE_stdio(-1, -1);
3026
3027         dprintf_setup(&argc, argv);
3028
3029         while ((c = getopt(argc, argv, "bcdhilmsuCDRSAFLXevp:t:U:P")) != -1) {
3030                 switch (c) {
3031                 case 'b':
3032                 case 'c':
3033                 case 'd':
3034                 case 'h':
3035                 case 'i':
3036                 case 'l':
3037                 case 'm':
3038                 case 's':
3039                 case 'u':
3040                 case 'C':
3041                 case 'D':
3042                 case 'R':
3043                 case 'S':
3044                         dump_opt[c]++;
3045                         dump_all = 0;
3046                         break;
3047                 case 'A':
3048                 case 'F':
3049                 case 'L':
3050                 case 'X':
3051                 case 'e':
3052                 case 'P':
3053                         dump_opt[c]++;
3054                         break;
3055                 case 'v':
3056                         verbose++;
3057                         break;
3058                 case 'p':
3059                         if (searchdirs == NULL) {
3060                                 searchdirs = umem_alloc(sizeof (char *),
3061                                     UMEM_NOFAIL);
3062                         } else {
3063                                 char **tmp = umem_alloc((nsearch + 1) *
3064                                     sizeof (char *), UMEM_NOFAIL);
3065                                 bcopy(searchdirs, tmp, nsearch *
3066                                     sizeof (char *));
3067                                 umem_free(searchdirs,
3068                                     nsearch * sizeof (char *));
3069                                 searchdirs = tmp;
3070                         }
3071                         searchdirs[nsearch++] = optarg;
3072                         break;
3073                 case 't':
3074                         max_txg = strtoull(optarg, NULL, 0);
3075                         if (max_txg < TXG_INITIAL) {
3076                                 (void) fprintf(stderr, "incorrect txg "
3077                                     "specified: %s\n", optarg);
3078                                 usage();
3079                         }
3080                         break;
3081                 case 'U':
3082                         spa_config_path = optarg;
3083                         break;
3084                 default:
3085                         usage();
3086                         break;
3087                 }
3088         }
3089
3090         if (!dump_opt['e'] && searchdirs != NULL) {
3091                 (void) fprintf(stderr, "-p option requires use of -e\n");
3092                 usage();
3093         }
3094
3095         kernel_init(FREAD);
3096         if ((g_zfs = libzfs_init()) == NULL)
3097                 return (1);
3098
3099         if (dump_all)
3100                 verbose = MAX(verbose, 1);
3101
3102         for (c = 0; c < 256; c++) {
3103                 if (dump_all && !strchr("elAFLRSXP", c))
3104                         dump_opt[c] = 1;
3105                 if (dump_opt[c])
3106                         dump_opt[c] += verbose;
3107         }
3108
3109         aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3110         zfs_recover = (dump_opt['A'] > 1);
3111
3112         argc -= optind;
3113         argv += optind;
3114
3115         if (argc < 2 && dump_opt['R'])
3116                 usage();
3117         if (argc < 1) {
3118                 if (!dump_opt['e'] && dump_opt['C']) {
3119                         dump_cachefile(spa_config_path);
3120                         return (0);
3121                 }
3122                 usage();
3123         }
3124
3125         if (dump_opt['l']) {
3126                 dump_label(argv[0]);
3127                 return (0);
3128         }
3129
3130         if (dump_opt['X'] || dump_opt['F'])
3131                 rewind = ZPOOL_DO_REWIND |
3132                     (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3133
3134         if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3135             nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3136             nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3137                 fatal("internal error: %s", strerror(ENOMEM));
3138
3139         error = 0;
3140         target = argv[0];
3141
3142         if (dump_opt['e']) {
3143                 nvlist_t *cfg = NULL;
3144                 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3145
3146                 error = ENOENT;
3147                 if (name) {
3148                         if (dump_opt['C'] > 1) {
3149                                 (void) printf("\nConfiguration for import:\n");
3150                                 dump_nvlist(cfg, 8);
3151                         }
3152                         if (nvlist_add_nvlist(cfg,
3153                             ZPOOL_REWIND_POLICY, policy) != 0) {
3154                                 fatal("can't open '%s': %s",
3155                                     target, strerror(ENOMEM));
3156                         }
3157                         if ((error = spa_import(name, cfg, NULL,
3158                             ZFS_IMPORT_MISSING_LOG)) != 0) {
3159                                 error = spa_import(name, cfg, NULL,
3160                                     ZFS_IMPORT_VERBATIM);
3161                         }
3162                 }
3163         }
3164
3165         if (error == 0) {
3166                 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3167                         error = spa_open_rewind(target, &spa, FTAG, policy,
3168                             NULL);
3169                         if (error) {
3170                                 /*
3171                                  * If we're missing the log device then
3172                                  * try opening the pool after clearing the
3173                                  * log state.
3174                                  */
3175                                 mutex_enter(&spa_namespace_lock);
3176                                 if ((spa = spa_lookup(target)) != NULL &&
3177                                     spa->spa_log_state == SPA_LOG_MISSING) {
3178                                         spa->spa_log_state = SPA_LOG_CLEAR;
3179                                         error = 0;
3180                                 }
3181                                 mutex_exit(&spa_namespace_lock);
3182
3183                                 if (!error) {
3184                                         error = spa_open_rewind(target, &spa,
3185                                             FTAG, policy, NULL);
3186                                 }
3187                         }
3188                 } else {
3189                         error = dmu_objset_own(target, DMU_OST_ANY,
3190                             B_TRUE, FTAG, &os);
3191                 }
3192         }
3193         nvlist_free(policy);
3194
3195         if (error)
3196                 fatal("can't open '%s': %s", target, strerror(error));
3197
3198         argv++;
3199         argc--;
3200         if (!dump_opt['R']) {
3201                 if (argc > 0) {
3202                         zopt_objects = argc;
3203                         zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3204                         for (i = 0; i < zopt_objects; i++) {
3205                                 errno = 0;
3206                                 zopt_object[i] = strtoull(argv[i], NULL, 0);
3207                                 if (zopt_object[i] == 0 && errno != 0)
3208                                         fatal("bad number %s: %s",
3209                                             argv[i], strerror(errno));
3210                         }
3211                 }
3212                 if (os != NULL) {
3213                         dump_dir(os);
3214                 } else if (zopt_objects > 0 && !dump_opt['m']) {
3215                         dump_dir(spa->spa_meta_objset);
3216                 } else {
3217                         dump_zpool(spa);
3218                 }
3219         } else {
3220                 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3221                 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3222                 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3223                 flagbits['e'] = ZDB_FLAG_BSWAP;
3224                 flagbits['g'] = ZDB_FLAG_GBH;
3225                 flagbits['i'] = ZDB_FLAG_INDIRECT;
3226                 flagbits['p'] = ZDB_FLAG_PHYS;
3227                 flagbits['r'] = ZDB_FLAG_RAW;
3228
3229                 for (i = 0; i < argc; i++)
3230                         zdb_read_block(argv[i], spa);
3231         }
3232
3233         (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3234
3235         fuid_table_destroy();
3236         sa_loaded = B_FALSE;
3237
3238         libzfs_fini(g_zfs);
3239         kernel_fini();
3240
3241         return (0);
3242 }