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