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