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