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