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