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