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