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 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <stdio.h> 29 #include <stdio_ext.h> 30 #include <stdlib.h> 31 #include <ctype.h> 32 #include <sys/zfs_context.h> 33 #include <sys/spa.h> 34 #include <sys/spa_impl.h> 35 #include <sys/dmu.h> 36 #include <sys/zap.h> 37 #include <sys/fs/zfs.h> 38 #include <sys/zfs_znode.h> 39 #include <sys/vdev.h> 40 #include <sys/vdev_impl.h> 41 #include <sys/metaslab_impl.h> 42 #include <sys/dmu_objset.h> 43 #include <sys/dsl_dir.h> 44 #include <sys/dsl_dataset.h> 45 #include <sys/dsl_pool.h> 46 #include <sys/dbuf.h> 47 #include <sys/zil.h> 48 #include <sys/zil_impl.h> 49 #include <sys/stat.h> 50 #include <sys/resource.h> 51 #include <sys/dmu_traverse.h> 52 #include <sys/zio_checksum.h> 53 #include <sys/zio_compress.h> 54 #include <sys/zfs_fuid.h> 55 #undef ZFS_MAXNAMELEN 56 #undef verify 57 #include <libzfs.h> 58 59 const char cmdname[] = "zdb"; 60 uint8_t dump_opt[256]; 61 62 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 63 64 extern void dump_intent_log(zilog_t *); 65 uint64_t *zopt_object = NULL; 66 int zopt_objects = 0; 67 int zdb_advance = ADVANCE_PRE; 68 zbookmark_t zdb_noread = { 0, 0, ZB_NO_LEVEL, 0 }; 69 libzfs_handle_t *g_zfs; 70 boolean_t zdb_sig_user_data = B_TRUE; 71 int zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; 72 73 /* 74 * These libumem hooks provide a reasonable set of defaults for the allocator's 75 * debugging facilities. 76 */ 77 const char * 78 _umem_debug_init() 79 { 80 return ("default,verbose"); /* $UMEM_DEBUG setting */ 81 } 82 83 const char * 84 _umem_logging_init(void) 85 { 86 return ("fail,contents"); /* $UMEM_LOGGING setting */ 87 } 88 89 static void 90 usage(void) 91 { 92 (void) fprintf(stderr, 93 "Usage: %s [-udibcsvL] [-U cachefile_path] [-O order] " 94 "[-B os:obj:level:blkid] [-S user:cksumalg] " 95 "dataset [object...]\n" 96 " %s -C [pool]\n" 97 " %s -l dev\n" 98 " %s -R vdev:offset:size:flags\n" 99 " %s [-p path_to_vdev_dir]\n" 100 " %s -e pool | GUID | devid ...\n", 101 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 102 103 (void) fprintf(stderr, " -u uberblock\n"); 104 (void) fprintf(stderr, " -d datasets\n"); 105 (void) fprintf(stderr, " -C cached pool configuration\n"); 106 (void) fprintf(stderr, " -i intent logs\n"); 107 (void) fprintf(stderr, " -b block statistics\n"); 108 (void) fprintf(stderr, " -c checksum all data blocks\n"); 109 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 110 (void) fprintf(stderr, " -S <user|all>:<cksum_alg|all> -- " 111 "dump blkptr signatures\n"); 112 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 113 (void) fprintf(stderr, " -l dump label contents\n"); 114 (void) fprintf(stderr, " -L live pool (allows some errors)\n"); 115 (void) fprintf(stderr, " -O [!]<pre|post|prune|data|holes> " 116 "visitation order\n"); 117 (void) fprintf(stderr, " -U cachefile_path -- use alternate " 118 "cachefile\n"); 119 (void) fprintf(stderr, " -B objset:object:level:blkid -- " 120 "simulate bad block\n"); 121 (void) fprintf(stderr, " -R read and display block from a " 122 "device\n"); 123 (void) fprintf(stderr, " -e Pool is exported/destroyed/" 124 "has altroot\n"); 125 (void) fprintf(stderr, " -p <Path to vdev dir> (use with -e)\n"); 126 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 127 "to make only that option verbose\n"); 128 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 129 exit(1); 130 } 131 132 static void 133 fatal(const char *fmt, ...) 134 { 135 va_list ap; 136 137 va_start(ap, fmt); 138 (void) fprintf(stderr, "%s: ", cmdname); 139 (void) vfprintf(stderr, fmt, ap); 140 va_end(ap); 141 (void) fprintf(stderr, "\n"); 142 143 exit(1); 144 } 145 146 static void 147 dump_nvlist(nvlist_t *list, int indent) 148 { 149 nvpair_t *elem = NULL; 150 151 while ((elem = nvlist_next_nvpair(list, elem)) != NULL) { 152 switch (nvpair_type(elem)) { 153 case DATA_TYPE_STRING: 154 { 155 char *value; 156 157 VERIFY(nvpair_value_string(elem, &value) == 0); 158 (void) printf("%*s%s='%s'\n", indent, "", 159 nvpair_name(elem), value); 160 } 161 break; 162 163 case DATA_TYPE_UINT64: 164 { 165 uint64_t value; 166 167 VERIFY(nvpair_value_uint64(elem, &value) == 0); 168 (void) printf("%*s%s=%llu\n", indent, "", 169 nvpair_name(elem), (u_longlong_t)value); 170 } 171 break; 172 173 case DATA_TYPE_NVLIST: 174 { 175 nvlist_t *value; 176 177 VERIFY(nvpair_value_nvlist(elem, &value) == 0); 178 (void) printf("%*s%s\n", indent, "", 179 nvpair_name(elem)); 180 dump_nvlist(value, indent + 4); 181 } 182 break; 183 184 case DATA_TYPE_NVLIST_ARRAY: 185 { 186 nvlist_t **value; 187 uint_t c, count; 188 189 VERIFY(nvpair_value_nvlist_array(elem, &value, 190 &count) == 0); 191 192 for (c = 0; c < count; c++) { 193 (void) printf("%*s%s[%u]\n", indent, "", 194 nvpair_name(elem), c); 195 dump_nvlist(value[c], indent + 8); 196 } 197 } 198 break; 199 200 default: 201 202 (void) printf("bad config type %d for %s\n", 203 nvpair_type(elem), nvpair_name(elem)); 204 } 205 } 206 } 207 208 /* ARGSUSED */ 209 static void 210 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 211 { 212 nvlist_t *nv; 213 size_t nvsize = *(uint64_t *)data; 214 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 215 216 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed)); 217 218 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 219 220 umem_free(packed, nvsize); 221 222 dump_nvlist(nv, 8); 223 224 nvlist_free(nv); 225 } 226 227 const char dump_zap_stars[] = "****************************************"; 228 const int dump_zap_width = sizeof (dump_zap_stars) - 1; 229 230 static void 231 dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE]) 232 { 233 int i; 234 int minidx = ZAP_HISTOGRAM_SIZE - 1; 235 int maxidx = 0; 236 uint64_t max = 0; 237 238 for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) { 239 if (histo[i] > max) 240 max = histo[i]; 241 if (histo[i] > 0 && i > maxidx) 242 maxidx = i; 243 if (histo[i] > 0 && i < minidx) 244 minidx = i; 245 } 246 247 if (max < dump_zap_width) 248 max = dump_zap_width; 249 250 for (i = minidx; i <= maxidx; i++) 251 (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i], 252 &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]); 253 } 254 255 static void 256 dump_zap_stats(objset_t *os, uint64_t object) 257 { 258 int error; 259 zap_stats_t zs; 260 261 error = zap_get_stats(os, object, &zs); 262 if (error) 263 return; 264 265 if (zs.zs_ptrtbl_len == 0) { 266 ASSERT(zs.zs_num_blocks == 1); 267 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 268 (u_longlong_t)zs.zs_blocksize, 269 (u_longlong_t)zs.zs_num_entries); 270 return; 271 } 272 273 (void) printf("\tFat ZAP stats:\n"); 274 275 (void) printf("\t\tPointer table:\n"); 276 (void) printf("\t\t\t%llu elements\n", 277 (u_longlong_t)zs.zs_ptrtbl_len); 278 (void) printf("\t\t\tzt_blk: %llu\n", 279 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 280 (void) printf("\t\t\tzt_numblks: %llu\n", 281 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 282 (void) printf("\t\t\tzt_shift: %llu\n", 283 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 284 (void) printf("\t\t\tzt_blks_copied: %llu\n", 285 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 286 (void) printf("\t\t\tzt_nextblk: %llu\n", 287 (u_longlong_t)zs.zs_ptrtbl_nextblk); 288 289 (void) printf("\t\tZAP entries: %llu\n", 290 (u_longlong_t)zs.zs_num_entries); 291 (void) printf("\t\tLeaf blocks: %llu\n", 292 (u_longlong_t)zs.zs_num_leafs); 293 (void) printf("\t\tTotal blocks: %llu\n", 294 (u_longlong_t)zs.zs_num_blocks); 295 (void) printf("\t\tzap_block_type: 0x%llx\n", 296 (u_longlong_t)zs.zs_block_type); 297 (void) printf("\t\tzap_magic: 0x%llx\n", 298 (u_longlong_t)zs.zs_magic); 299 (void) printf("\t\tzap_salt: 0x%llx\n", 300 (u_longlong_t)zs.zs_salt); 301 302 (void) printf("\t\tLeafs with 2^n pointers:\n"); 303 dump_zap_histogram(zs.zs_leafs_with_2n_pointers); 304 305 (void) printf("\t\tBlocks with n*5 entries:\n"); 306 dump_zap_histogram(zs.zs_blocks_with_n5_entries); 307 308 (void) printf("\t\tBlocks n/10 full:\n"); 309 dump_zap_histogram(zs.zs_blocks_n_tenths_full); 310 311 (void) printf("\t\tEntries with n chunks:\n"); 312 dump_zap_histogram(zs.zs_entries_using_n_chunks); 313 314 (void) printf("\t\tBuckets with n entries:\n"); 315 dump_zap_histogram(zs.zs_buckets_with_n_entries); 316 } 317 318 /*ARGSUSED*/ 319 static void 320 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 321 { 322 } 323 324 /*ARGSUSED*/ 325 void 326 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 327 { 328 } 329 330 /*ARGSUSED*/ 331 static void 332 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 333 { 334 } 335 336 /*ARGSUSED*/ 337 static void 338 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 339 { 340 zap_cursor_t zc; 341 zap_attribute_t attr; 342 void *prop; 343 int i; 344 345 dump_zap_stats(os, object); 346 (void) printf("\n"); 347 348 for (zap_cursor_init(&zc, os, object); 349 zap_cursor_retrieve(&zc, &attr) == 0; 350 zap_cursor_advance(&zc)) { 351 (void) printf("\t\t%s = ", attr.za_name); 352 if (attr.za_num_integers == 0) { 353 (void) printf("\n"); 354 continue; 355 } 356 prop = umem_zalloc(attr.za_num_integers * 357 attr.za_integer_length, UMEM_NOFAIL); 358 (void) zap_lookup(os, object, attr.za_name, 359 attr.za_integer_length, attr.za_num_integers, prop); 360 if (attr.za_integer_length == 1) { 361 (void) printf("%s", (char *)prop); 362 } else { 363 for (i = 0; i < attr.za_num_integers; i++) { 364 switch (attr.za_integer_length) { 365 case 2: 366 (void) printf("%u ", 367 ((uint16_t *)prop)[i]); 368 break; 369 case 4: 370 (void) printf("%u ", 371 ((uint32_t *)prop)[i]); 372 break; 373 case 8: 374 (void) printf("%lld ", 375 (u_longlong_t)((int64_t *)prop)[i]); 376 break; 377 } 378 } 379 } 380 (void) printf("\n"); 381 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 382 } 383 zap_cursor_fini(&zc); 384 } 385 386 /*ARGSUSED*/ 387 static void 388 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 389 { 390 zap_cursor_t zc; 391 zap_attribute_t attr; 392 const char *typenames[] = { 393 /* 0 */ "not specified", 394 /* 1 */ "FIFO", 395 /* 2 */ "Character Device", 396 /* 3 */ "3 (invalid)", 397 /* 4 */ "Directory", 398 /* 5 */ "5 (invalid)", 399 /* 6 */ "Block Device", 400 /* 7 */ "7 (invalid)", 401 /* 8 */ "Regular File", 402 /* 9 */ "9 (invalid)", 403 /* 10 */ "Symbolic Link", 404 /* 11 */ "11 (invalid)", 405 /* 12 */ "Socket", 406 /* 13 */ "Door", 407 /* 14 */ "Event Port", 408 /* 15 */ "15 (invalid)", 409 }; 410 411 dump_zap_stats(os, object); 412 (void) printf("\n"); 413 414 for (zap_cursor_init(&zc, os, object); 415 zap_cursor_retrieve(&zc, &attr) == 0; 416 zap_cursor_advance(&zc)) { 417 (void) printf("\t\t%s = %lld (type: %s)\n", 418 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 419 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 420 } 421 zap_cursor_fini(&zc); 422 } 423 424 static void 425 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm) 426 { 427 uint64_t alloc, offset, entry; 428 uint8_t mapshift = sm->sm_shift; 429 uint64_t mapstart = sm->sm_start; 430 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 431 "INVALID", "INVALID", "INVALID", "INVALID" }; 432 433 if (smo->smo_object == 0) 434 return; 435 436 /* 437 * Print out the freelist entries in both encoded and decoded form. 438 */ 439 alloc = 0; 440 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) { 441 VERIFY(0 == dmu_read(os, smo->smo_object, offset, 442 sizeof (entry), &entry)); 443 if (SM_DEBUG_DECODE(entry)) { 444 (void) printf("\t\t[%4llu] %s: txg %llu, pass %llu\n", 445 (u_longlong_t)(offset / sizeof (entry)), 446 ddata[SM_DEBUG_ACTION_DECODE(entry)], 447 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 448 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 449 } else { 450 (void) printf("\t\t[%4llu] %c range:" 451 " %08llx-%08llx size: %06llx\n", 452 (u_longlong_t)(offset / sizeof (entry)), 453 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 454 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 455 mapshift) + mapstart), 456 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 457 mapshift) + mapstart + (SM_RUN_DECODE(entry) << 458 mapshift)), 459 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 460 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 461 alloc += SM_RUN_DECODE(entry) << mapshift; 462 else 463 alloc -= SM_RUN_DECODE(entry) << mapshift; 464 } 465 } 466 if (alloc != smo->smo_alloc) { 467 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 468 "with space map summary (%llu)\n", 469 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc); 470 } 471 } 472 473 static void 474 dump_metaslab(metaslab_t *msp) 475 { 476 char freebuf[5]; 477 space_map_obj_t *smo = &msp->ms_smo; 478 vdev_t *vd = msp->ms_group->mg_vd; 479 spa_t *spa = vd->vdev_spa; 480 481 nicenum(msp->ms_map.sm_size - smo->smo_alloc, freebuf); 482 483 if (dump_opt['d'] <= 5) { 484 (void) printf("\t%10llx %10llu %5s\n", 485 (u_longlong_t)msp->ms_map.sm_start, 486 (u_longlong_t)smo->smo_object, 487 freebuf); 488 return; 489 } 490 491 (void) printf( 492 "\tvdev %llu offset %08llx spacemap %4llu free %5s\n", 493 (u_longlong_t)vd->vdev_id, (u_longlong_t)msp->ms_map.sm_start, 494 (u_longlong_t)smo->smo_object, freebuf); 495 496 ASSERT(msp->ms_map.sm_size == (1ULL << vd->vdev_ms_shift)); 497 498 dump_spacemap(spa->spa_meta_objset, smo, &msp->ms_map); 499 } 500 501 static void 502 dump_metaslabs(spa_t *spa) 503 { 504 vdev_t *rvd = spa->spa_root_vdev; 505 vdev_t *vd; 506 int c, m; 507 508 (void) printf("\nMetaslabs:\n"); 509 510 for (c = 0; c < rvd->vdev_children; c++) { 511 vd = rvd->vdev_child[c]; 512 513 (void) printf("\n vdev %llu = %s\n\n", 514 (u_longlong_t)vd->vdev_id, vdev_description(vd)); 515 516 if (dump_opt['d'] <= 5) { 517 (void) printf("\t%10s %10s %5s\n", 518 "offset", "spacemap", "free"); 519 (void) printf("\t%10s %10s %5s\n", 520 "------", "--------", "----"); 521 } 522 for (m = 0; m < vd->vdev_ms_count; m++) 523 dump_metaslab(vd->vdev_ms[m]); 524 (void) printf("\n"); 525 } 526 } 527 528 static void 529 dump_dtl(vdev_t *vd, int indent) 530 { 531 avl_tree_t *t = &vd->vdev_dtl_map.sm_root; 532 space_seg_t *ss; 533 vdev_t *pvd; 534 int c; 535 536 if (indent == 0) 537 (void) printf("\nDirty time logs:\n\n"); 538 539 (void) printf("\t%*s%s\n", indent, "", vdev_description(vd)); 540 541 for (ss = avl_first(t); ss; ss = AVL_NEXT(t, ss)) { 542 /* 543 * Everything in this DTL must appear in all parent DTL unions. 544 */ 545 for (pvd = vd; pvd; pvd = pvd->vdev_parent) 546 ASSERT(vdev_dtl_contains(&pvd->vdev_dtl_map, 547 ss->ss_start, ss->ss_end - ss->ss_start)); 548 (void) printf("\t%*soutage [%llu,%llu] length %llu\n", 549 indent, "", 550 (u_longlong_t)ss->ss_start, 551 (u_longlong_t)ss->ss_end - 1, 552 (u_longlong_t)(ss->ss_end - ss->ss_start)); 553 } 554 555 (void) printf("\n"); 556 557 if (dump_opt['d'] > 5 && vd->vdev_children == 0) { 558 dump_spacemap(vd->vdev_spa->spa_meta_objset, &vd->vdev_dtl, 559 &vd->vdev_dtl_map); 560 (void) printf("\n"); 561 } 562 563 for (c = 0; c < vd->vdev_children; c++) 564 dump_dtl(vd->vdev_child[c], indent + 4); 565 } 566 567 /*ARGSUSED*/ 568 static void 569 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 570 { 571 } 572 573 static uint64_t 574 blkid2offset(dnode_phys_t *dnp, int level, uint64_t blkid) 575 { 576 if (level < 0) 577 return (blkid); 578 579 return ((blkid << (level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 580 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 581 } 582 583 static void 584 sprintf_blkptr_compact(char *blkbuf, blkptr_t *bp, int alldvas) 585 { 586 dva_t *dva = bp->blk_dva; 587 int ndvas = alldvas ? BP_GET_NDVAS(bp) : 1; 588 int i; 589 590 blkbuf[0] = '\0'; 591 592 for (i = 0; i < ndvas; i++) 593 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", 594 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 595 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 596 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 597 598 (void) sprintf(blkbuf + strlen(blkbuf), "%llxL/%llxP F=%llu B=%llu", 599 (u_longlong_t)BP_GET_LSIZE(bp), 600 (u_longlong_t)BP_GET_PSIZE(bp), 601 (u_longlong_t)bp->blk_fill, 602 (u_longlong_t)bp->blk_birth); 603 } 604 605 /* ARGSUSED */ 606 static int 607 zdb_indirect_cb(traverse_blk_cache_t *bc, spa_t *spa, void *a) 608 { 609 zbookmark_t *zb = &bc->bc_bookmark; 610 blkptr_t *bp = &bc->bc_blkptr; 611 void *data = bc->bc_data; 612 dnode_phys_t *dnp = bc->bc_dnode; 613 char blkbuf[BP_SPRINTF_LEN + 80]; 614 int l; 615 616 if (bc->bc_errno) { 617 (void) sprintf(blkbuf, 618 "Error %d reading <%llu, %llu, %lld, %llu>: ", 619 bc->bc_errno, 620 (u_longlong_t)zb->zb_objset, 621 (u_longlong_t)zb->zb_object, 622 (u_longlong_t)zb->zb_level, 623 (u_longlong_t)zb->zb_blkid); 624 goto out; 625 } 626 627 if (zb->zb_level == -1) { 628 ASSERT3U(BP_GET_TYPE(bp), ==, DMU_OT_OBJSET); 629 ASSERT3U(BP_GET_LEVEL(bp), ==, 0); 630 } else { 631 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 632 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 633 } 634 635 if (zb->zb_level > 0) { 636 uint64_t fill = 0; 637 blkptr_t *bpx, *bpend; 638 639 for (bpx = data, bpend = bpx + BP_GET_LSIZE(bp) / sizeof (*bpx); 640 bpx < bpend; bpx++) { 641 if (bpx->blk_birth != 0) { 642 fill += bpx->blk_fill; 643 } else { 644 ASSERT(bpx->blk_fill == 0); 645 } 646 } 647 ASSERT3U(fill, ==, bp->blk_fill); 648 } 649 650 if (zb->zb_level == 0 && dnp->dn_type == DMU_OT_DNODE) { 651 uint64_t fill = 0; 652 dnode_phys_t *dnx, *dnend; 653 654 for (dnx = data, dnend = dnx + (BP_GET_LSIZE(bp)>>DNODE_SHIFT); 655 dnx < dnend; dnx++) { 656 if (dnx->dn_type != DMU_OT_NONE) 657 fill++; 658 } 659 ASSERT3U(fill, ==, bp->blk_fill); 660 } 661 662 (void) sprintf(blkbuf, "%16llx ", 663 (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid)); 664 665 ASSERT(zb->zb_level >= 0); 666 667 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 668 if (l == zb->zb_level) { 669 (void) sprintf(blkbuf + strlen(blkbuf), "L%llx", 670 (u_longlong_t)zb->zb_level); 671 } else { 672 (void) sprintf(blkbuf + strlen(blkbuf), " "); 673 } 674 } 675 676 out: 677 if (bp->blk_birth == 0) { 678 (void) sprintf(blkbuf + strlen(blkbuf), "<hole>"); 679 (void) printf("%s\n", blkbuf); 680 } else { 681 sprintf_blkptr_compact(blkbuf + strlen(blkbuf), bp, 682 dump_opt['d'] > 5 ? 1 : 0); 683 (void) printf("%s\n", blkbuf); 684 } 685 686 return (bc->bc_errno ? ERESTART : 0); 687 } 688 689 /*ARGSUSED*/ 690 static void 691 dump_indirect(objset_t *os, uint64_t object, void *data, size_t size) 692 { 693 traverse_handle_t *th; 694 uint64_t objset = dmu_objset_id(os); 695 int advance = zdb_advance; 696 697 (void) printf("Indirect blocks:\n"); 698 699 if (object == 0) 700 advance |= ADVANCE_DATA; 701 702 th = traverse_init(dmu_objset_spa(os), zdb_indirect_cb, NULL, advance, 703 ZIO_FLAG_CANFAIL); 704 th->th_noread = zdb_noread; 705 706 traverse_add_dnode(th, 0, -1ULL, objset, object); 707 708 while (traverse_more(th) == EAGAIN) 709 continue; 710 711 (void) printf("\n"); 712 713 traverse_fini(th); 714 } 715 716 /*ARGSUSED*/ 717 static void 718 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 719 { 720 dsl_dir_phys_t *dd = data; 721 time_t crtime; 722 char used[6], compressed[6], uncompressed[6], quota[6], resv[6]; 723 724 if (dd == NULL) 725 return; 726 727 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 728 729 crtime = dd->dd_creation_time; 730 nicenum(dd->dd_used_bytes, used); 731 nicenum(dd->dd_compressed_bytes, compressed); 732 nicenum(dd->dd_uncompressed_bytes, uncompressed); 733 nicenum(dd->dd_quota, quota); 734 nicenum(dd->dd_reserved, resv); 735 736 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 737 (void) printf("\t\thead_dataset_obj = %llu\n", 738 (u_longlong_t)dd->dd_head_dataset_obj); 739 (void) printf("\t\tparent_dir_obj = %llu\n", 740 (u_longlong_t)dd->dd_parent_obj); 741 (void) printf("\t\torigin_obj = %llu\n", 742 (u_longlong_t)dd->dd_origin_obj); 743 (void) printf("\t\tchild_dir_zapobj = %llu\n", 744 (u_longlong_t)dd->dd_child_dir_zapobj); 745 (void) printf("\t\tused_bytes = %s\n", used); 746 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 747 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 748 (void) printf("\t\tquota = %s\n", quota); 749 (void) printf("\t\treserved = %s\n", resv); 750 (void) printf("\t\tprops_zapobj = %llu\n", 751 (u_longlong_t)dd->dd_props_zapobj); 752 (void) printf("\t\tdeleg_zapobj = %llu\n", 753 (u_longlong_t)dd->dd_deleg_zapobj); 754 } 755 756 /*ARGSUSED*/ 757 static void 758 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 759 { 760 dsl_dataset_phys_t *ds = data; 761 time_t crtime; 762 char used[6], compressed[6], uncompressed[6], unique[6]; 763 char blkbuf[BP_SPRINTF_LEN]; 764 765 if (ds == NULL) 766 return; 767 768 ASSERT(size == sizeof (*ds)); 769 crtime = ds->ds_creation_time; 770 nicenum(ds->ds_used_bytes, used); 771 nicenum(ds->ds_compressed_bytes, compressed); 772 nicenum(ds->ds_uncompressed_bytes, uncompressed); 773 nicenum(ds->ds_unique_bytes, unique); 774 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ds->ds_bp); 775 776 (void) printf("\t\tdataset_obj = %llu\n", 777 (u_longlong_t)ds->ds_dir_obj); 778 (void) printf("\t\tprev_snap_obj = %llu\n", 779 (u_longlong_t)ds->ds_prev_snap_obj); 780 (void) printf("\t\tprev_snap_txg = %llu\n", 781 (u_longlong_t)ds->ds_prev_snap_txg); 782 (void) printf("\t\tnext_snap_obj = %llu\n", 783 (u_longlong_t)ds->ds_next_snap_obj); 784 (void) printf("\t\tsnapnames_zapobj = %llu\n", 785 (u_longlong_t)ds->ds_snapnames_zapobj); 786 (void) printf("\t\tnum_children = %llu\n", 787 (u_longlong_t)ds->ds_num_children); 788 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 789 (void) printf("\t\tcreation_txg = %llu\n", 790 (u_longlong_t)ds->ds_creation_txg); 791 (void) printf("\t\tdeadlist_obj = %llu\n", 792 (u_longlong_t)ds->ds_deadlist_obj); 793 (void) printf("\t\tused_bytes = %s\n", used); 794 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 795 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 796 (void) printf("\t\tunique = %s\n", unique); 797 (void) printf("\t\tfsid_guid = %llu\n", 798 (u_longlong_t)ds->ds_fsid_guid); 799 (void) printf("\t\tguid = %llu\n", 800 (u_longlong_t)ds->ds_guid); 801 (void) printf("\t\tflags = %llx\n", 802 (u_longlong_t)ds->ds_flags); 803 (void) printf("\t\tbp = %s\n", blkbuf); 804 } 805 806 static void 807 dump_bplist(objset_t *mos, uint64_t object, char *name) 808 { 809 bplist_t bpl = { 0 }; 810 blkptr_t blk, *bp = &blk; 811 uint64_t itor = 0; 812 char bytes[6]; 813 char comp[6]; 814 char uncomp[6]; 815 816 if (dump_opt['d'] < 3) 817 return; 818 819 mutex_init(&bpl.bpl_lock, NULL, MUTEX_DEFAULT, NULL); 820 VERIFY(0 == bplist_open(&bpl, mos, object)); 821 if (bplist_empty(&bpl)) { 822 bplist_close(&bpl); 823 mutex_destroy(&bpl.bpl_lock); 824 return; 825 } 826 827 nicenum(bpl.bpl_phys->bpl_bytes, bytes); 828 if (bpl.bpl_dbuf->db_size == sizeof (bplist_phys_t)) { 829 nicenum(bpl.bpl_phys->bpl_comp, comp); 830 nicenum(bpl.bpl_phys->bpl_uncomp, uncomp); 831 (void) printf("\n %s: %llu entries, %s (%s/%s comp)\n", 832 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, 833 bytes, comp, uncomp); 834 } else { 835 (void) printf("\n %s: %llu entries, %s\n", 836 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, bytes); 837 } 838 839 if (dump_opt['d'] < 5) { 840 bplist_close(&bpl); 841 mutex_destroy(&bpl.bpl_lock); 842 return; 843 } 844 845 (void) printf("\n"); 846 847 while (bplist_iterate(&bpl, &itor, bp) == 0) { 848 char blkbuf[BP_SPRINTF_LEN]; 849 850 ASSERT(bp->blk_birth != 0); 851 sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0); 852 (void) printf("\tItem %3llu: %s\n", 853 (u_longlong_t)itor - 1, blkbuf); 854 } 855 856 bplist_close(&bpl); 857 mutex_destroy(&bpl.bpl_lock); 858 } 859 860 static avl_tree_t idx_tree; 861 static avl_tree_t domain_tree; 862 static boolean_t fuid_table_loaded; 863 864 static void 865 fuid_table_destroy() 866 { 867 if (fuid_table_loaded) { 868 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 869 fuid_table_loaded = B_FALSE; 870 } 871 } 872 873 /* 874 * print uid or gid information. 875 * For normal POSIX id just the id is printed in decimal format. 876 * For CIFS files with FUID the fuid is printed in hex followed by 877 * the doman-rid string. 878 */ 879 static void 880 print_idstr(uint64_t id, const char *id_type) 881 { 882 if (FUID_INDEX(id)) { 883 char *domain; 884 885 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 886 (void) printf("\t%s %llx [%s-%d]\n", id_type, 887 (u_longlong_t)id, domain, (int)FUID_RID(id)); 888 } else { 889 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 890 } 891 892 } 893 894 static void 895 dump_uidgid(objset_t *os, znode_phys_t *zp) 896 { 897 uint32_t uid_idx, gid_idx; 898 899 uid_idx = FUID_INDEX(zp->zp_uid); 900 gid_idx = FUID_INDEX(zp->zp_gid); 901 902 /* Load domain table, if not already loaded */ 903 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 904 uint64_t fuid_obj; 905 906 /* first find the fuid object. It lives in the master node */ 907 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 908 8, 1, &fuid_obj) == 0); 909 (void) zfs_fuid_table_load(os, fuid_obj, 910 &idx_tree, &domain_tree); 911 fuid_table_loaded = B_TRUE; 912 } 913 914 print_idstr(zp->zp_uid, "uid"); 915 print_idstr(zp->zp_gid, "gid"); 916 } 917 918 /*ARGSUSED*/ 919 static void 920 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 921 { 922 znode_phys_t *zp = data; 923 time_t z_crtime, z_atime, z_mtime, z_ctime; 924 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 925 int error; 926 927 ASSERT(size >= sizeof (znode_phys_t)); 928 929 error = zfs_obj_to_path(os, object, path, sizeof (path)); 930 if (error != 0) { 931 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 932 (u_longlong_t)object); 933 } 934 935 if (dump_opt['d'] < 3) { 936 (void) printf("\t%s\n", path); 937 return; 938 } 939 940 z_crtime = (time_t)zp->zp_crtime[0]; 941 z_atime = (time_t)zp->zp_atime[0]; 942 z_mtime = (time_t)zp->zp_mtime[0]; 943 z_ctime = (time_t)zp->zp_ctime[0]; 944 945 (void) printf("\tpath %s\n", path); 946 dump_uidgid(os, zp); 947 (void) printf("\tatime %s", ctime(&z_atime)); 948 (void) printf("\tmtime %s", ctime(&z_mtime)); 949 (void) printf("\tctime %s", ctime(&z_ctime)); 950 (void) printf("\tcrtime %s", ctime(&z_crtime)); 951 (void) printf("\tgen %llu\n", (u_longlong_t)zp->zp_gen); 952 (void) printf("\tmode %llo\n", (u_longlong_t)zp->zp_mode); 953 (void) printf("\tsize %llu\n", (u_longlong_t)zp->zp_size); 954 (void) printf("\tparent %llu\n", (u_longlong_t)zp->zp_parent); 955 (void) printf("\tlinks %llu\n", (u_longlong_t)zp->zp_links); 956 (void) printf("\txattr %llu\n", (u_longlong_t)zp->zp_xattr); 957 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)zp->zp_rdev); 958 } 959 960 /*ARGSUSED*/ 961 static void 962 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 963 { 964 } 965 966 /*ARGSUSED*/ 967 static void 968 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 969 { 970 } 971 972 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES] = { 973 dump_none, /* unallocated */ 974 dump_zap, /* object directory */ 975 dump_uint64, /* object array */ 976 dump_none, /* packed nvlist */ 977 dump_packed_nvlist, /* packed nvlist size */ 978 dump_none, /* bplist */ 979 dump_none, /* bplist header */ 980 dump_none, /* SPA space map header */ 981 dump_none, /* SPA space map */ 982 dump_none, /* ZIL intent log */ 983 dump_dnode, /* DMU dnode */ 984 dump_dmu_objset, /* DMU objset */ 985 dump_dsl_dir, /* DSL directory */ 986 dump_zap, /* DSL directory child map */ 987 dump_zap, /* DSL dataset snap map */ 988 dump_zap, /* DSL props */ 989 dump_dsl_dataset, /* DSL dataset */ 990 dump_znode, /* ZFS znode */ 991 dump_acl, /* ZFS V0 ACL */ 992 dump_uint8, /* ZFS plain file */ 993 dump_zpldir, /* ZFS directory */ 994 dump_zap, /* ZFS master node */ 995 dump_zap, /* ZFS delete queue */ 996 dump_uint8, /* zvol object */ 997 dump_zap, /* zvol prop */ 998 dump_uint8, /* other uint8[] */ 999 dump_uint64, /* other uint64[] */ 1000 dump_zap, /* other ZAP */ 1001 dump_zap, /* persistent error log */ 1002 dump_uint8, /* SPA history */ 1003 dump_uint64, /* SPA history offsets */ 1004 dump_zap, /* Pool properties */ 1005 dump_zap, /* DSL permissions */ 1006 dump_acl, /* ZFS ACL */ 1007 dump_uint8, /* ZFS SYSACL */ 1008 dump_none, /* FUID nvlist */ 1009 dump_packed_nvlist, /* FUID nvlist size */ 1010 }; 1011 1012 static void 1013 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1014 { 1015 dmu_buf_t *db = NULL; 1016 dmu_object_info_t doi; 1017 dnode_t *dn; 1018 void *bonus = NULL; 1019 size_t bsize = 0; 1020 char iblk[6], dblk[6], lsize[6], asize[6], bonus_size[6], segsize[6]; 1021 char aux[50]; 1022 int error; 1023 1024 if (*print_header) { 1025 (void) printf("\n Object lvl iblk dblk lsize" 1026 " asize type\n"); 1027 *print_header = 0; 1028 } 1029 1030 if (object == 0) { 1031 dn = os->os->os_meta_dnode; 1032 } else { 1033 error = dmu_bonus_hold(os, object, FTAG, &db); 1034 if (error) 1035 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1036 object, error); 1037 bonus = db->db_data; 1038 bsize = db->db_size; 1039 dn = ((dmu_buf_impl_t *)db)->db_dnode; 1040 } 1041 dmu_object_info_from_dnode(dn, &doi); 1042 1043 nicenum(doi.doi_metadata_block_size, iblk); 1044 nicenum(doi.doi_data_block_size, dblk); 1045 nicenum(doi.doi_data_block_size * (doi.doi_max_block_offset + 1), 1046 lsize); 1047 nicenum(doi.doi_physical_blks << 9, asize); 1048 nicenum(doi.doi_bonus_size, bonus_size); 1049 1050 aux[0] = '\0'; 1051 1052 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1053 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1054 zio_checksum_table[doi.doi_checksum].ci_name); 1055 } 1056 1057 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1058 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1059 zio_compress_table[doi.doi_compress].ci_name); 1060 } 1061 1062 (void) printf("%10lld %3u %5s %5s %5s %5s %s%s\n", 1063 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, lsize, 1064 asize, dmu_ot[doi.doi_type].ot_name, aux); 1065 1066 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1067 (void) printf("%10s %3s %5s %5s %5s %5s %s\n", 1068 "", "", "", "", bonus_size, "bonus", 1069 dmu_ot[doi.doi_bonus_type].ot_name); 1070 } 1071 1072 if (verbosity >= 4) { 1073 object_viewer[doi.doi_bonus_type](os, object, bonus, bsize); 1074 object_viewer[doi.doi_type](os, object, NULL, 0); 1075 *print_header = 1; 1076 } 1077 1078 if (verbosity >= 5) 1079 dump_indirect(os, object, NULL, 0); 1080 1081 if (verbosity >= 5) { 1082 /* 1083 * Report the list of segments that comprise the object. 1084 */ 1085 uint64_t start = 0; 1086 uint64_t end; 1087 uint64_t blkfill = 1; 1088 int minlvl = 1; 1089 1090 if (dn->dn_type == DMU_OT_DNODE) { 1091 minlvl = 0; 1092 blkfill = DNODES_PER_BLOCK; 1093 } 1094 1095 for (;;) { 1096 error = dnode_next_offset(dn, B_FALSE, &start, minlvl, 1097 blkfill, 0); 1098 if (error) 1099 break; 1100 end = start; 1101 error = dnode_next_offset(dn, B_TRUE, &end, minlvl, 1102 blkfill, 0); 1103 nicenum(end - start, segsize); 1104 (void) printf("\t\tsegment [%016llx, %016llx)" 1105 " size %5s\n", (u_longlong_t)start, 1106 (u_longlong_t)end, segsize); 1107 if (error) 1108 break; 1109 start = end; 1110 } 1111 } 1112 1113 if (db != NULL) 1114 dmu_buf_rele(db, FTAG); 1115 } 1116 1117 static char *objset_types[DMU_OST_NUMTYPES] = { 1118 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1119 1120 /*ARGSUSED*/ 1121 static void 1122 dump_dir(objset_t *os) 1123 { 1124 dmu_objset_stats_t dds; 1125 uint64_t object, object_count; 1126 uint64_t refdbytes, usedobjs, scratch; 1127 char numbuf[8]; 1128 char blkbuf[BP_SPRINTF_LEN]; 1129 char osname[MAXNAMELEN]; 1130 char *type = "UNKNOWN"; 1131 int verbosity = dump_opt['d']; 1132 int print_header = 1; 1133 int i, error; 1134 1135 dmu_objset_fast_stat(os, &dds); 1136 1137 if (dds.dds_type < DMU_OST_NUMTYPES) 1138 type = objset_types[dds.dds_type]; 1139 1140 if (dds.dds_type == DMU_OST_META) { 1141 dds.dds_creation_txg = TXG_INITIAL; 1142 usedobjs = os->os->os_rootbp->blk_fill; 1143 refdbytes = 1144 os->os->os_spa->spa_dsl_pool->dp_mos_dir->dd_used_bytes; 1145 } else { 1146 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1147 } 1148 1149 ASSERT3U(usedobjs, ==, os->os->os_rootbp->blk_fill); 1150 1151 nicenum(refdbytes, numbuf); 1152 1153 if (verbosity >= 4) { 1154 (void) strcpy(blkbuf, ", rootbp "); 1155 sprintf_blkptr(blkbuf + strlen(blkbuf), 1156 BP_SPRINTF_LEN - strlen(blkbuf), os->os->os_rootbp); 1157 } else { 1158 blkbuf[0] = '\0'; 1159 } 1160 1161 dmu_objset_name(os, osname); 1162 1163 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1164 "%s, %llu objects%s\n", 1165 osname, type, (u_longlong_t)dmu_objset_id(os), 1166 (u_longlong_t)dds.dds_creation_txg, 1167 numbuf, (u_longlong_t)usedobjs, blkbuf); 1168 1169 dump_intent_log(dmu_objset_zil(os)); 1170 1171 if (dmu_objset_ds(os) != NULL) 1172 dump_bplist(dmu_objset_pool(os)->dp_meta_objset, 1173 dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist"); 1174 1175 if (verbosity < 2) 1176 return; 1177 1178 if (zopt_objects != 0) { 1179 for (i = 0; i < zopt_objects; i++) 1180 dump_object(os, zopt_object[i], verbosity, 1181 &print_header); 1182 (void) printf("\n"); 1183 return; 1184 } 1185 1186 dump_object(os, 0, verbosity, &print_header); 1187 object_count = 1; 1188 1189 object = 0; 1190 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1191 dump_object(os, object, verbosity, &print_header); 1192 object_count++; 1193 } 1194 1195 ASSERT3U(object_count, ==, usedobjs); 1196 1197 (void) printf("\n"); 1198 1199 if (error != ESRCH) 1200 fatal("dmu_object_next() = %d", error); 1201 } 1202 1203 static void 1204 dump_uberblock(uberblock_t *ub) 1205 { 1206 time_t timestamp = ub->ub_timestamp; 1207 1208 (void) printf("Uberblock\n\n"); 1209 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1210 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1211 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1212 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1213 (void) printf("\ttimestamp = %llu UTC = %s", 1214 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1215 if (dump_opt['u'] >= 3) { 1216 char blkbuf[BP_SPRINTF_LEN]; 1217 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ub->ub_rootbp); 1218 (void) printf("\trootbp = %s\n", blkbuf); 1219 } 1220 (void) printf("\n"); 1221 } 1222 1223 static void 1224 dump_config(const char *pool) 1225 { 1226 spa_t *spa = NULL; 1227 1228 mutex_enter(&spa_namespace_lock); 1229 while ((spa = spa_next(spa)) != NULL) { 1230 if (pool == NULL) 1231 (void) printf("%s\n", spa_name(spa)); 1232 if (pool == NULL || strcmp(pool, spa_name(spa)) == 0) 1233 dump_nvlist(spa->spa_config, 4); 1234 } 1235 mutex_exit(&spa_namespace_lock); 1236 } 1237 1238 static void 1239 dump_label(const char *dev) 1240 { 1241 int fd; 1242 vdev_label_t label; 1243 char *buf = label.vl_vdev_phys.vp_nvlist; 1244 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1245 struct stat64 statbuf; 1246 uint64_t psize; 1247 int l; 1248 1249 if ((fd = open64(dev, O_RDONLY)) < 0) { 1250 (void) printf("cannot open '%s': %s\n", dev, strerror(errno)); 1251 exit(1); 1252 } 1253 1254 if (fstat64(fd, &statbuf) != 0) { 1255 (void) printf("failed to stat '%s': %s\n", dev, 1256 strerror(errno)); 1257 exit(1); 1258 } 1259 1260 psize = statbuf.st_size; 1261 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 1262 1263 for (l = 0; l < VDEV_LABELS; l++) { 1264 1265 nvlist_t *config = NULL; 1266 1267 (void) printf("--------------------------------------------\n"); 1268 (void) printf("LABEL %d\n", l); 1269 (void) printf("--------------------------------------------\n"); 1270 1271 if (pread64(fd, &label, sizeof (label), 1272 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 1273 (void) printf("failed to read label %d\n", l); 1274 continue; 1275 } 1276 1277 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 1278 (void) printf("failed to unpack label %d\n", l); 1279 continue; 1280 } 1281 dump_nvlist(config, 4); 1282 nvlist_free(config); 1283 } 1284 } 1285 1286 /*ARGSUSED*/ 1287 static int 1288 dump_one_dir(char *dsname, void *arg) 1289 { 1290 int error; 1291 objset_t *os; 1292 1293 error = dmu_objset_open(dsname, DMU_OST_ANY, 1294 DS_MODE_STANDARD | DS_MODE_READONLY, &os); 1295 if (error) { 1296 (void) printf("Could not open %s\n", dsname); 1297 return (0); 1298 } 1299 dump_dir(os); 1300 dmu_objset_close(os); 1301 fuid_table_destroy(); 1302 return (0); 1303 } 1304 1305 static void 1306 zdb_space_map_load(spa_t *spa) 1307 { 1308 vdev_t *rvd = spa->spa_root_vdev; 1309 vdev_t *vd; 1310 int c, m, error; 1311 1312 for (c = 0; c < rvd->vdev_children; c++) { 1313 vd = rvd->vdev_child[c]; 1314 for (m = 0; m < vd->vdev_ms_count; m++) { 1315 metaslab_t *msp = vd->vdev_ms[m]; 1316 mutex_enter(&msp->ms_lock); 1317 error = space_map_load(&msp->ms_allocmap[0], NULL, 1318 SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset); 1319 mutex_exit(&msp->ms_lock); 1320 if (error) 1321 fatal("%s bad space map #%d, error %d", 1322 spa->spa_name, c, error); 1323 } 1324 } 1325 } 1326 1327 static int 1328 zdb_space_map_claim(spa_t *spa, blkptr_t *bp, zbookmark_t *zb) 1329 { 1330 dva_t *dva = bp->blk_dva; 1331 vdev_t *vd; 1332 metaslab_t *msp; 1333 space_map_t *allocmap, *freemap; 1334 int error; 1335 int d; 1336 blkptr_t blk = *bp; 1337 1338 for (d = 0; d < BP_GET_NDVAS(bp); d++) { 1339 uint64_t vdev = DVA_GET_VDEV(&dva[d]); 1340 uint64_t offset = DVA_GET_OFFSET(&dva[d]); 1341 uint64_t size = DVA_GET_ASIZE(&dva[d]); 1342 1343 if ((vd = vdev_lookup_top(spa, vdev)) == NULL) 1344 return (ENXIO); 1345 1346 if ((offset >> vd->vdev_ms_shift) >= vd->vdev_ms_count) 1347 return (ENXIO); 1348 1349 msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 1350 allocmap = &msp->ms_allocmap[0]; 1351 freemap = &msp->ms_freemap[0]; 1352 1353 /* Prepare our copy of the bp in case we need to read GBHs */ 1354 if (DVA_GET_GANG(&dva[d])) { 1355 size = vdev_psize_to_asize(vd, SPA_GANGBLOCKSIZE); 1356 DVA_SET_ASIZE(&blk.blk_dva[d], size); 1357 DVA_SET_GANG(&blk.blk_dva[d], 0); 1358 } 1359 1360 mutex_enter(&msp->ms_lock); 1361 if (space_map_contains(freemap, offset, size)) { 1362 mutex_exit(&msp->ms_lock); 1363 return (EAGAIN); /* allocated more than once */ 1364 } 1365 1366 if (!space_map_contains(allocmap, offset, size)) { 1367 mutex_exit(&msp->ms_lock); 1368 return (ESTALE); /* not allocated at all */ 1369 } 1370 1371 space_map_remove(allocmap, offset, size); 1372 space_map_add(freemap, offset, size); 1373 1374 mutex_exit(&msp->ms_lock); 1375 } 1376 1377 if (BP_IS_GANG(bp)) { 1378 zio_gbh_phys_t gbh; 1379 int g; 1380 1381 /* LINTED - compile time assert */ 1382 ASSERT(sizeof (zio_gbh_phys_t) == SPA_GANGBLOCKSIZE); 1383 1384 BP_SET_CHECKSUM(&blk, ZIO_CHECKSUM_GANG_HEADER); 1385 BP_SET_PSIZE(&blk, SPA_GANGBLOCKSIZE); 1386 BP_SET_LSIZE(&blk, SPA_GANGBLOCKSIZE); 1387 BP_SET_COMPRESS(&blk, ZIO_COMPRESS_OFF); 1388 error = zio_wait(zio_read(NULL, spa, &blk, &gbh, 1389 SPA_GANGBLOCKSIZE, NULL, NULL, ZIO_PRIORITY_SYNC_READ, 1390 ZIO_FLAG_CANFAIL | ZIO_FLAG_CONFIG_HELD, zb)); 1391 if (error) 1392 return (error); 1393 if (BP_SHOULD_BYTESWAP(&blk)) 1394 byteswap_uint64_array(&gbh, SPA_GANGBLOCKSIZE); 1395 for (g = 0; g < SPA_GBH_NBLKPTRS; g++) { 1396 if (BP_IS_HOLE(&gbh.zg_blkptr[g])) 1397 break; 1398 error = zdb_space_map_claim(spa, &gbh.zg_blkptr[g], zb); 1399 if (error) 1400 return (error); 1401 } 1402 } 1403 1404 return (0); 1405 } 1406 1407 static void 1408 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size) 1409 { 1410 metaslab_t *msp; 1411 1412 /* LINTED */ 1413 msp = (metaslab_t *)((char *)sm - offsetof(metaslab_t, ms_allocmap[0])); 1414 1415 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 1416 (u_longlong_t)msp->ms_group->mg_vd->vdev_id, 1417 (u_longlong_t)start, 1418 (u_longlong_t)size); 1419 } 1420 1421 static void 1422 zdb_space_map_unload(spa_t *spa) 1423 { 1424 vdev_t *rvd = spa->spa_root_vdev; 1425 vdev_t *vd; 1426 int c, m; 1427 1428 for (c = 0; c < rvd->vdev_children; c++) { 1429 vd = rvd->vdev_child[c]; 1430 for (m = 0; m < vd->vdev_ms_count; m++) { 1431 metaslab_t *msp = vd->vdev_ms[m]; 1432 mutex_enter(&msp->ms_lock); 1433 space_map_vacate(&msp->ms_allocmap[0], zdb_leak, 1434 &msp->ms_allocmap[0]); 1435 space_map_unload(&msp->ms_allocmap[0]); 1436 space_map_vacate(&msp->ms_freemap[0], NULL, NULL); 1437 mutex_exit(&msp->ms_lock); 1438 } 1439 } 1440 } 1441 1442 static void 1443 zdb_refresh_ubsync(spa_t *spa) 1444 { 1445 uberblock_t ub = { 0 }; 1446 vdev_t *rvd = spa->spa_root_vdev; 1447 zio_t *zio; 1448 1449 /* 1450 * Reload the uberblock. 1451 */ 1452 zio = zio_root(spa, NULL, NULL, 1453 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); 1454 vdev_uberblock_load(zio, rvd, &ub); 1455 (void) zio_wait(zio); 1456 1457 if (ub.ub_txg != 0) 1458 spa->spa_ubsync = ub; 1459 } 1460 1461 /* 1462 * Verify that the sum of the sizes of all blocks in the pool adds up 1463 * to the SPA's sa_alloc total. 1464 */ 1465 typedef struct zdb_blkstats { 1466 uint64_t zb_asize; 1467 uint64_t zb_lsize; 1468 uint64_t zb_psize; 1469 uint64_t zb_count; 1470 } zdb_blkstats_t; 1471 1472 #define DMU_OT_DEFERRED DMU_OT_NONE 1473 #define DMU_OT_TOTAL DMU_OT_NUMTYPES 1474 1475 #define ZB_TOTAL ZB_MAXLEVEL 1476 1477 typedef struct zdb_cb { 1478 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1]; 1479 uint64_t zcb_errors[256]; 1480 traverse_blk_cache_t *zcb_cache; 1481 int zcb_readfails; 1482 int zcb_haderrors; 1483 } zdb_cb_t; 1484 1485 static void 1486 zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, int type) 1487 { 1488 int i, error; 1489 1490 for (i = 0; i < 4; i++) { 1491 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 1492 int t = (i & 1) ? type : DMU_OT_TOTAL; 1493 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 1494 1495 zb->zb_asize += BP_GET_ASIZE(bp); 1496 zb->zb_lsize += BP_GET_LSIZE(bp); 1497 zb->zb_psize += BP_GET_PSIZE(bp); 1498 zb->zb_count++; 1499 } 1500 1501 if (dump_opt['S']) { 1502 boolean_t print_sig; 1503 1504 print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 && 1505 BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS); 1506 1507 if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg) 1508 print_sig = B_FALSE; 1509 1510 if (print_sig) { 1511 (void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t" 1512 "%llx:%llx:%llx:%llx\n", 1513 (u_longlong_t)BP_GET_LEVEL(bp), 1514 (longlong_t)BP_GET_PSIZE(bp), 1515 (longlong_t)BP_GET_NDVAS(bp), 1516 dmu_ot[BP_GET_TYPE(bp)].ot_name, 1517 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1518 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name, 1519 (u_longlong_t)bp->blk_cksum.zc_word[0], 1520 (u_longlong_t)bp->blk_cksum.zc_word[1], 1521 (u_longlong_t)bp->blk_cksum.zc_word[2], 1522 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1523 } 1524 } 1525 1526 if (dump_opt['L']) 1527 return; 1528 1529 error = zdb_space_map_claim(spa, bp, &zcb->zcb_cache->bc_bookmark); 1530 1531 if (error == 0) 1532 return; 1533 1534 if (error == EAGAIN) 1535 (void) fatal("double-allocation, bp=%p", bp); 1536 1537 if (error == ESTALE) 1538 (void) fatal("reference to freed block, bp=%p", bp); 1539 1540 (void) fatal("fatal error %d in bp %p", error, bp); 1541 } 1542 1543 static int 1544 zdb_blkptr_cb(traverse_blk_cache_t *bc, spa_t *spa, void *arg) 1545 { 1546 zbookmark_t *zb = &bc->bc_bookmark; 1547 zdb_cb_t *zcb = arg; 1548 blkptr_t *bp = &bc->bc_blkptr; 1549 dmu_object_type_t type = BP_GET_TYPE(bp); 1550 char blkbuf[BP_SPRINTF_LEN]; 1551 int error = 0; 1552 1553 if (bc->bc_errno) { 1554 if (zcb->zcb_readfails++ < 10 && dump_opt['L']) { 1555 zdb_refresh_ubsync(spa); 1556 error = EAGAIN; 1557 } else { 1558 zcb->zcb_haderrors = 1; 1559 zcb->zcb_errors[bc->bc_errno]++; 1560 error = ERESTART; 1561 } 1562 1563 if (dump_opt['b'] >= 3 || (dump_opt['b'] >= 2 && bc->bc_errno)) 1564 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1565 else 1566 blkbuf[0] = '\0'; 1567 1568 if (!dump_opt['S']) { 1569 (void) printf("zdb_blkptr_cb: Got error %d reading " 1570 "<%llu, %llu, %lld, %llx> %s -- %s\n", 1571 bc->bc_errno, 1572 (u_longlong_t)zb->zb_objset, 1573 (u_longlong_t)zb->zb_object, 1574 (u_longlong_t)zb->zb_level, 1575 (u_longlong_t)zb->zb_blkid, 1576 blkbuf, 1577 error == EAGAIN ? "retrying" : "skipping"); 1578 } 1579 1580 return (error); 1581 } 1582 1583 zcb->zcb_readfails = 0; 1584 1585 ASSERT(!BP_IS_HOLE(bp)); 1586 1587 if (dump_opt['b'] >= 4) { 1588 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1589 (void) printf("objset %llu object %llu offset 0x%llx %s\n", 1590 (u_longlong_t)zb->zb_objset, 1591 (u_longlong_t)zb->zb_object, 1592 (u_longlong_t)blkid2offset(bc->bc_dnode, 1593 zb->zb_level, zb->zb_blkid), blkbuf); 1594 } 1595 1596 zdb_count_block(spa, zcb, bp, type); 1597 1598 return (0); 1599 } 1600 1601 static int 1602 dump_block_stats(spa_t *spa) 1603 { 1604 traverse_handle_t *th; 1605 zdb_cb_t zcb = { 0 }; 1606 traverse_blk_cache_t dummy_cache = { 0 }; 1607 zdb_blkstats_t *zb, *tzb; 1608 uint64_t alloc, space, logalloc; 1609 vdev_t *rvd = spa->spa_root_vdev; 1610 int leaks = 0; 1611 int advance = zdb_advance; 1612 int c, e, flags; 1613 1614 zcb.zcb_cache = &dummy_cache; 1615 1616 if (dump_opt['c'] || dump_opt['S']) 1617 advance |= ADVANCE_DATA; 1618 1619 advance |= ADVANCE_PRUNE | ADVANCE_ZIL; 1620 1621 if (!dump_opt['S']) { 1622 (void) printf("\nTraversing all blocks to %sverify" 1623 " nothing leaked ...\n", 1624 dump_opt['c'] ? "verify checksums and " : ""); 1625 } 1626 1627 /* 1628 * Load all space maps. As we traverse the pool, if we find a block 1629 * that's not in its space map, that indicates a double-allocation, 1630 * reference to a freed block, or an unclaimed block. Otherwise we 1631 * remove the block from the space map. If the space maps are not 1632 * empty when we're done, that indicates leaked blocks. 1633 */ 1634 if (!dump_opt['L']) 1635 zdb_space_map_load(spa); 1636 1637 /* 1638 * If there's a deferred-free bplist, process that first. 1639 */ 1640 if (spa->spa_sync_bplist_obj != 0) { 1641 bplist_t *bpl = &spa->spa_sync_bplist; 1642 blkptr_t blk; 1643 uint64_t itor = 0; 1644 1645 VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset, 1646 spa->spa_sync_bplist_obj)); 1647 1648 while (bplist_iterate(bpl, &itor, &blk) == 0) { 1649 if (dump_opt['b'] >= 4) { 1650 char blkbuf[BP_SPRINTF_LEN]; 1651 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk); 1652 (void) printf("[%s] %s\n", 1653 "deferred free", blkbuf); 1654 } 1655 zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED); 1656 } 1657 1658 bplist_close(bpl); 1659 } 1660 1661 /* 1662 * Now traverse the pool. If we're reading all data to verify 1663 * checksums, do a scrubbing read so that we validate all copies. 1664 */ 1665 flags = ZIO_FLAG_CANFAIL; 1666 if (advance & ADVANCE_DATA) 1667 flags |= ZIO_FLAG_SCRUB; 1668 th = traverse_init(spa, zdb_blkptr_cb, &zcb, advance, flags); 1669 th->th_noread = zdb_noread; 1670 1671 traverse_add_pool(th, 0, spa_first_txg(spa) + TXG_CONCURRENT_STATES); 1672 1673 while (traverse_more(th) == EAGAIN) 1674 continue; 1675 1676 traverse_fini(th); 1677 1678 if (zcb.zcb_haderrors && !dump_opt['S']) { 1679 (void) printf("\nError counts:\n\n"); 1680 (void) printf("\t%5s %s\n", "errno", "count"); 1681 for (e = 0; e < 256; e++) { 1682 if (zcb.zcb_errors[e] != 0) { 1683 (void) printf("\t%5d %llu\n", 1684 e, (u_longlong_t)zcb.zcb_errors[e]); 1685 } 1686 } 1687 } 1688 1689 /* 1690 * Report any leaked segments. 1691 */ 1692 if (!dump_opt['L']) 1693 zdb_space_map_unload(spa); 1694 1695 /* 1696 * If we're interested in printing out the blkptr signatures, 1697 * return now as we don't print out anything else (including 1698 * errors and leaks). 1699 */ 1700 if (dump_opt['S']) 1701 return (zcb.zcb_haderrors ? 3 : 0); 1702 1703 if (dump_opt['L']) 1704 (void) printf("\n\n *** Live pool traversal; " 1705 "block counts are only approximate ***\n\n"); 1706 1707 alloc = spa_get_alloc(spa); 1708 space = spa_get_space(spa); 1709 1710 /* 1711 * Log blocks allocated from a separate log device don't count 1712 * as part of the normal pool space; factor them in here. 1713 */ 1714 logalloc = 0; 1715 1716 for (c = 0; c < rvd->vdev_children; c++) 1717 if (rvd->vdev_child[c]->vdev_islog) 1718 logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc; 1719 1720 tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL]; 1721 1722 if (tzb->zb_asize == alloc + logalloc) { 1723 (void) printf("\n\tNo leaks (block sum matches space" 1724 " maps exactly)\n"); 1725 } else { 1726 (void) printf("block traversal size %llu != alloc %llu " 1727 "(leaked %lld)\n", 1728 (u_longlong_t)tzb->zb_asize, 1729 (u_longlong_t)alloc + logalloc, 1730 (u_longlong_t)(alloc + logalloc - tzb->zb_asize)); 1731 leaks = 1; 1732 } 1733 1734 if (tzb->zb_count == 0) 1735 return (2); 1736 1737 (void) printf("\n"); 1738 (void) printf("\tbp count: %10llu\n", 1739 (u_longlong_t)tzb->zb_count); 1740 (void) printf("\tbp logical: %10llu\t avg: %6llu\n", 1741 (u_longlong_t)tzb->zb_lsize, 1742 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 1743 (void) printf("\tbp physical: %10llu\t avg:" 1744 " %6llu\tcompression: %6.2f\n", 1745 (u_longlong_t)tzb->zb_psize, 1746 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 1747 (double)tzb->zb_lsize / tzb->zb_psize); 1748 (void) printf("\tbp allocated: %10llu\t avg:" 1749 " %6llu\tcompression: %6.2f\n", 1750 (u_longlong_t)tzb->zb_asize, 1751 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 1752 (double)tzb->zb_lsize / tzb->zb_asize); 1753 (void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n", 1754 (u_longlong_t)alloc, 100.0 * alloc / space); 1755 1756 if (dump_opt['b'] >= 2) { 1757 int l, t, level; 1758 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 1759 "\t avg\t comp\t%%Total\tType\n"); 1760 1761 for (t = 0; t <= DMU_OT_NUMTYPES; t++) { 1762 char csize[6], lsize[6], psize[6], asize[6], avg[6]; 1763 char *typename; 1764 1765 typename = t == DMU_OT_DEFERRED ? "deferred free" : 1766 t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name; 1767 1768 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 1769 (void) printf("%6s\t%5s\t%5s\t%5s" 1770 "\t%5s\t%5s\t%6s\t%s\n", 1771 "-", 1772 "-", 1773 "-", 1774 "-", 1775 "-", 1776 "-", 1777 "-", 1778 typename); 1779 continue; 1780 } 1781 1782 for (l = ZB_TOTAL - 1; l >= -1; l--) { 1783 level = (l == -1 ? ZB_TOTAL : l); 1784 zb = &zcb.zcb_type[level][t]; 1785 1786 if (zb->zb_asize == 0) 1787 continue; 1788 1789 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 1790 continue; 1791 1792 if (level == 0 && zb->zb_asize == 1793 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 1794 continue; 1795 1796 nicenum(zb->zb_count, csize); 1797 nicenum(zb->zb_lsize, lsize); 1798 nicenum(zb->zb_psize, psize); 1799 nicenum(zb->zb_asize, asize); 1800 nicenum(zb->zb_asize / zb->zb_count, avg); 1801 1802 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 1803 "\t%5.2f\t%6.2f\t", 1804 csize, lsize, psize, asize, avg, 1805 (double)zb->zb_lsize / zb->zb_psize, 1806 100.0 * zb->zb_asize / tzb->zb_asize); 1807 1808 if (level == ZB_TOTAL) 1809 (void) printf("%s\n", typename); 1810 else 1811 (void) printf(" L%d %s\n", 1812 level, typename); 1813 } 1814 } 1815 } 1816 1817 (void) printf("\n"); 1818 1819 if (leaks) 1820 return (2); 1821 1822 if (zcb.zcb_haderrors) 1823 return (3); 1824 1825 return (0); 1826 } 1827 1828 static void 1829 dump_zpool(spa_t *spa) 1830 { 1831 dsl_pool_t *dp = spa_get_dsl(spa); 1832 int rc = 0; 1833 1834 spa_config_enter(spa, RW_READER, FTAG); 1835 1836 if (dump_opt['u']) 1837 dump_uberblock(&spa->spa_uberblock); 1838 1839 if (dump_opt['d'] || dump_opt['i']) { 1840 dump_dir(dp->dp_meta_objset); 1841 if (dump_opt['d'] >= 3) { 1842 dump_bplist(dp->dp_meta_objset, 1843 spa->spa_sync_bplist_obj, "Deferred frees"); 1844 dump_dtl(spa->spa_root_vdev, 0); 1845 dump_metaslabs(spa); 1846 } 1847 (void) dmu_objset_find(spa->spa_name, dump_one_dir, NULL, 1848 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 1849 } 1850 1851 if (dump_opt['b'] || dump_opt['c'] || dump_opt['S']) 1852 rc = dump_block_stats(spa); 1853 1854 if (dump_opt['s']) 1855 show_pool_stats(spa); 1856 1857 spa_config_exit(spa, FTAG); 1858 1859 if (rc != 0) 1860 exit(rc); 1861 } 1862 1863 #define ZDB_FLAG_CHECKSUM 0x0001 1864 #define ZDB_FLAG_DECOMPRESS 0x0002 1865 #define ZDB_FLAG_BSWAP 0x0004 1866 #define ZDB_FLAG_GBH 0x0008 1867 #define ZDB_FLAG_INDIRECT 0x0010 1868 #define ZDB_FLAG_PHYS 0x0020 1869 #define ZDB_FLAG_RAW 0x0040 1870 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 1871 1872 int flagbits[256]; 1873 1874 static void 1875 zdb_print_blkptr(blkptr_t *bp, int flags) 1876 { 1877 dva_t *dva = bp->blk_dva; 1878 int d; 1879 1880 if (flags & ZDB_FLAG_BSWAP) 1881 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 1882 /* 1883 * Super-ick warning: This code is also duplicated in 1884 * cmd/mdb/common/modules/zfs/zfs.c . Yeah, I hate code 1885 * replication, too. 1886 */ 1887 for (d = 0; d < BP_GET_NDVAS(bp); d++) { 1888 (void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d, 1889 (longlong_t)DVA_GET_VDEV(&dva[d]), 1890 (longlong_t)DVA_GET_OFFSET(&dva[d])); 1891 (void) printf("\tDVA[%d]: GANG: %-5s GRID: %04llx\t" 1892 "ASIZE: %llx\n", d, 1893 DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE", 1894 (longlong_t)DVA_GET_GRID(&dva[d]), 1895 (longlong_t)DVA_GET_ASIZE(&dva[d])); 1896 (void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d, 1897 (u_longlong_t)DVA_GET_VDEV(&dva[d]), 1898 (longlong_t)DVA_GET_OFFSET(&dva[d]), 1899 (longlong_t)BP_GET_PSIZE(bp), 1900 BP_SHOULD_BYTESWAP(bp) ? "e" : "", 1901 !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ? 1902 "d" : "", 1903 DVA_GET_GANG(&dva[d]) ? "g" : "", 1904 BP_GET_COMPRESS(bp) != 0 ? "d" : ""); 1905 } 1906 (void) printf("\tLSIZE: %-16llx\t\tPSIZE: %llx\n", 1907 (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp)); 1908 (void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE: %s\n", 1909 BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG", 1910 dmu_ot[BP_GET_TYPE(bp)].ot_name); 1911 (void) printf("\tBIRTH: %-16llx LEVEL: %-2llu\tFILL: %llx\n", 1912 (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp), 1913 (u_longlong_t)bp->blk_fill); 1914 (void) printf("\tCKFUNC: %-16s\t\tCOMP: %s\n", 1915 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1916 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name); 1917 (void) printf("\tCKSUM: %llx:%llx:%llx:%llx\n", 1918 (u_longlong_t)bp->blk_cksum.zc_word[0], 1919 (u_longlong_t)bp->blk_cksum.zc_word[1], 1920 (u_longlong_t)bp->blk_cksum.zc_word[2], 1921 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1922 } 1923 1924 static void 1925 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 1926 { 1927 int i; 1928 1929 for (i = 0; i < nbps; i++) 1930 zdb_print_blkptr(&bp[i], flags); 1931 } 1932 1933 static void 1934 zdb_dump_gbh(void *buf, int flags) 1935 { 1936 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 1937 } 1938 1939 static void 1940 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 1941 { 1942 if (flags & ZDB_FLAG_BSWAP) 1943 byteswap_uint64_array(buf, size); 1944 (void) write(2, buf, size); 1945 } 1946 1947 static void 1948 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 1949 { 1950 uint64_t *d = (uint64_t *)buf; 1951 int nwords = size / sizeof (uint64_t); 1952 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 1953 int i, j; 1954 char *hdr, *c; 1955 1956 1957 if (do_bswap) 1958 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 1959 else 1960 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 1961 1962 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 1963 1964 for (i = 0; i < nwords; i += 2) { 1965 (void) printf("%06llx: %016llx %016llx ", 1966 (u_longlong_t)(i * sizeof (uint64_t)), 1967 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 1968 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 1969 1970 c = (char *)&d[i]; 1971 for (j = 0; j < 2 * sizeof (uint64_t); j++) 1972 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 1973 (void) printf("\n"); 1974 } 1975 } 1976 1977 /* 1978 * There are two acceptable formats: 1979 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 1980 * child[.child]* - For example: 0.1.1 1981 * 1982 * The second form can be used to specify arbitrary vdevs anywhere 1983 * in the heirarchy. For example, in a pool with a mirror of 1984 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 1985 */ 1986 static vdev_t * 1987 zdb_vdev_lookup(vdev_t *vdev, char *path) 1988 { 1989 char *s, *p, *q; 1990 int i; 1991 1992 if (vdev == NULL) 1993 return (NULL); 1994 1995 /* First, assume the x.x.x.x format */ 1996 i = (int)strtoul(path, &s, 10); 1997 if (s == path || (s && *s != '.' && *s != '\0')) 1998 goto name; 1999 if (i < 0 || i >= vdev->vdev_children) 2000 return (NULL); 2001 2002 vdev = vdev->vdev_child[i]; 2003 if (*s == '\0') 2004 return (vdev); 2005 return (zdb_vdev_lookup(vdev, s+1)); 2006 2007 name: 2008 for (i = 0; i < vdev->vdev_children; i++) { 2009 vdev_t *vc = vdev->vdev_child[i]; 2010 2011 if (vc->vdev_path == NULL) { 2012 vc = zdb_vdev_lookup(vc, path); 2013 if (vc == NULL) 2014 continue; 2015 else 2016 return (vc); 2017 } 2018 2019 p = strrchr(vc->vdev_path, '/'); 2020 p = p ? p + 1 : vc->vdev_path; 2021 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2022 2023 if (strcmp(vc->vdev_path, path) == 0) 2024 return (vc); 2025 if (strcmp(p, path) == 0) 2026 return (vc); 2027 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2028 return (vc); 2029 } 2030 2031 return (NULL); 2032 } 2033 2034 /* 2035 * Read a block from a pool and print it out. The syntax of the 2036 * block descriptor is: 2037 * 2038 * pool:vdev_specifier:offset:size[:flags] 2039 * 2040 * pool - The name of the pool you wish to read from 2041 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2042 * offset - offset, in hex, in bytes 2043 * size - Amount of data to read, in hex, in bytes 2044 * flags - A string of characters specifying options 2045 * b: Decode a blkptr at given offset within block 2046 * *c: Calculate and display checksums 2047 * *d: Decompress data before dumping 2048 * e: Byteswap data before dumping 2049 * *g: Display data as a gang block header 2050 * *i: Display as an indirect block 2051 * p: Do I/O to physical offset 2052 * r: Dump raw data to stdout 2053 * 2054 * * = not yet implemented 2055 */ 2056 static void 2057 zdb_read_block(char *thing, spa_t **spap) 2058 { 2059 spa_t *spa = *spap; 2060 int flags = 0; 2061 uint64_t offset = 0, size = 0, blkptr_offset = 0; 2062 zio_t *zio; 2063 vdev_t *vd; 2064 void *buf; 2065 char *s, *p, *dup, *spa_name, *vdev, *flagstr; 2066 int i, error, zio_flags; 2067 2068 dup = strdup(thing); 2069 s = strtok(dup, ":"); 2070 spa_name = s ? s : ""; 2071 s = strtok(NULL, ":"); 2072 vdev = s ? s : ""; 2073 s = strtok(NULL, ":"); 2074 offset = strtoull(s ? s : "", NULL, 16); 2075 s = strtok(NULL, ":"); 2076 size = strtoull(s ? s : "", NULL, 16); 2077 s = strtok(NULL, ":"); 2078 flagstr = s ? s : ""; 2079 2080 s = NULL; 2081 if (size == 0) 2082 s = "size must not be zero"; 2083 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2084 s = "size must be a multiple of sector size"; 2085 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2086 s = "offset must be a multiple of sector size"; 2087 if (s) { 2088 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2089 free(dup); 2090 return; 2091 } 2092 2093 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2094 for (i = 0; flagstr[i]; i++) { 2095 int bit = flagbits[(uchar_t)flagstr[i]]; 2096 2097 if (bit == 0) { 2098 (void) printf("***Invalid flag: %c\n", 2099 flagstr[i]); 2100 continue; 2101 } 2102 flags |= bit; 2103 2104 /* If it's not something with an argument, keep going */ 2105 if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS | 2106 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2107 continue; 2108 2109 p = &flagstr[i + 1]; 2110 if (bit == ZDB_FLAG_PRINT_BLKPTR) 2111 blkptr_offset = strtoull(p, &p, 16); 2112 if (*p != ':' && *p != '\0') { 2113 (void) printf("***Invalid flag arg: '%s'\n", s); 2114 free(dup); 2115 return; 2116 } 2117 } 2118 } 2119 2120 if (spa == NULL || spa->spa_name == NULL || 2121 strcmp(spa->spa_name, spa_name)) { 2122 if (spa && spa->spa_name) 2123 spa_close(spa, (void *)zdb_read_block); 2124 error = spa_open(spa_name, spap, (void *)zdb_read_block); 2125 if (error) 2126 fatal("Failed to open pool '%s': %s", 2127 spa_name, strerror(error)); 2128 spa = *spap; 2129 } 2130 2131 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 2132 if (vd == NULL) { 2133 (void) printf("***Invalid vdev: %s\n", vdev); 2134 free(dup); 2135 return; 2136 } else { 2137 if (vd->vdev_path) 2138 (void) printf("Found vdev: %s\n", vd->vdev_path); 2139 else 2140 (void) printf("Found vdev type: %s\n", 2141 vd->vdev_ops->vdev_op_type); 2142 } 2143 2144 buf = umem_alloc(size, UMEM_NOFAIL); 2145 2146 zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 2147 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | ZIO_FLAG_NOBOOKMARK; 2148 2149 if (flags & ZDB_FLAG_PHYS) 2150 zio_flags |= ZIO_FLAG_PHYSICAL; 2151 2152 zio = zio_root(spa, NULL, NULL, 0); 2153 /* XXX todo - cons up a BP so RAID-Z will be happy */ 2154 zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size, 2155 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL)); 2156 error = zio_wait(zio); 2157 2158 if (error) { 2159 (void) printf("Read of %s failed, error: %d\n", thing, error); 2160 goto out; 2161 } 2162 2163 if (flags & ZDB_FLAG_PRINT_BLKPTR) 2164 zdb_print_blkptr((blkptr_t *)(void *) 2165 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 2166 else if (flags & ZDB_FLAG_RAW) 2167 zdb_dump_block_raw(buf, size, flags); 2168 else if (flags & ZDB_FLAG_INDIRECT) 2169 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 2170 flags); 2171 else if (flags & ZDB_FLAG_GBH) 2172 zdb_dump_gbh(buf, flags); 2173 else 2174 zdb_dump_block(thing, buf, size, flags); 2175 2176 out: 2177 umem_free(buf, size); 2178 free(dup); 2179 } 2180 2181 static boolean_t 2182 nvlist_string_match(nvlist_t *config, char *name, char *tgt) 2183 { 2184 char *s; 2185 2186 verify(nvlist_lookup_string(config, name, &s) == 0); 2187 return (strcmp(s, tgt) == 0); 2188 } 2189 2190 static boolean_t 2191 nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt) 2192 { 2193 uint64_t val; 2194 2195 verify(nvlist_lookup_uint64(config, name, &val) == 0); 2196 return (val == tgt); 2197 } 2198 2199 static boolean_t 2200 vdev_child_guid_match(nvlist_t *vdev, uint64_t guid) 2201 { 2202 nvlist_t **child; 2203 uint_t c, children; 2204 2205 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2206 &child, &children) == 0); 2207 for (c = 0; c < children; ++c) 2208 if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid)) 2209 return (B_TRUE); 2210 return (B_FALSE); 2211 } 2212 2213 static boolean_t 2214 vdev_child_string_match(nvlist_t *vdev, char *tgt) 2215 { 2216 nvlist_t **child; 2217 uint_t c, children; 2218 2219 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2220 &child, &children) == 0); 2221 for (c = 0; c < children; ++c) { 2222 if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) || 2223 nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt)) 2224 return (B_TRUE); 2225 } 2226 return (B_FALSE); 2227 } 2228 2229 static boolean_t 2230 vdev_guid_match(nvlist_t *config, uint64_t guid) 2231 { 2232 nvlist_t *nvroot; 2233 2234 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2235 &nvroot) == 0); 2236 2237 return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) || 2238 vdev_child_guid_match(nvroot, guid)); 2239 } 2240 2241 static boolean_t 2242 vdev_string_match(nvlist_t *config, char *tgt) 2243 { 2244 nvlist_t *nvroot; 2245 2246 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2247 &nvroot) == 0); 2248 2249 return (vdev_child_string_match(nvroot, tgt)); 2250 } 2251 2252 static boolean_t 2253 pool_match(nvlist_t *config, char *tgt) 2254 { 2255 uint64_t guid = strtoull(tgt, NULL, 0); 2256 2257 if (guid != 0) { 2258 return ( 2259 nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) || 2260 vdev_guid_match(config, guid)); 2261 } else { 2262 return ( 2263 nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) || 2264 vdev_string_match(config, tgt)); 2265 } 2266 } 2267 2268 static int 2269 find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir, 2270 char *cachefile) 2271 { 2272 nvlist_t *pools; 2273 int error = ENOENT; 2274 nvlist_t *match = NULL; 2275 2276 if (vdev_dir != NULL) 2277 pools = zpool_find_import(g_zfs, 1, &vdev_dir, B_TRUE); 2278 else if (cachefile != NULL) 2279 pools = zpool_find_import_cached(g_zfs, cachefile, B_TRUE); 2280 else 2281 pools = zpool_find_import(g_zfs, 0, NULL, B_TRUE); 2282 2283 if (pools != NULL) { 2284 nvpair_t *elem = NULL; 2285 2286 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 2287 verify(nvpair_value_nvlist(elem, configp) == 0); 2288 if (pool_match(*configp, pool_id)) { 2289 if (match != NULL) { 2290 (void) fatal( 2291 "More than one matching pool - " 2292 "specify guid/devid/device path."); 2293 } else { 2294 match = *configp; 2295 error = 0; 2296 } 2297 } 2298 } 2299 } 2300 2301 *configp = error ? NULL : match; 2302 2303 return (error); 2304 } 2305 2306 int 2307 main(int argc, char **argv) 2308 { 2309 int i, c; 2310 struct rlimit rl = { 1024, 1024 }; 2311 spa_t *spa; 2312 objset_t *os = NULL; 2313 char *endstr; 2314 int dump_all = 1; 2315 int verbose = 0; 2316 int error; 2317 int flag, set; 2318 int exported = 0; 2319 char *vdev_dir = NULL; 2320 char *cachefile = NULL; 2321 2322 (void) setrlimit(RLIMIT_NOFILE, &rl); 2323 (void) enable_extended_FILE_stdio(-1, -1); 2324 2325 dprintf_setup(&argc, argv); 2326 2327 while ((c = getopt(argc, argv, "udibcsvCLO:B:S:U:lRep:")) != -1) { 2328 switch (c) { 2329 case 'u': 2330 case 'd': 2331 case 'i': 2332 case 'b': 2333 case 'c': 2334 case 's': 2335 case 'C': 2336 case 'l': 2337 case 'R': 2338 dump_opt[c]++; 2339 dump_all = 0; 2340 break; 2341 case 'L': 2342 dump_opt[c]++; 2343 break; 2344 case 'O': 2345 endstr = optarg; 2346 if (endstr[0] == '!') { 2347 endstr++; 2348 set = 0; 2349 } else { 2350 set = 1; 2351 } 2352 if (strcmp(endstr, "post") == 0) { 2353 flag = ADVANCE_PRE; 2354 set = !set; 2355 } else if (strcmp(endstr, "pre") == 0) { 2356 flag = ADVANCE_PRE; 2357 } else if (strcmp(endstr, "prune") == 0) { 2358 flag = ADVANCE_PRUNE; 2359 } else if (strcmp(endstr, "data") == 0) { 2360 flag = ADVANCE_DATA; 2361 } else if (strcmp(endstr, "holes") == 0) { 2362 flag = ADVANCE_HOLES; 2363 } else { 2364 usage(); 2365 } 2366 if (set) 2367 zdb_advance |= flag; 2368 else 2369 zdb_advance &= ~flag; 2370 break; 2371 case 'B': 2372 endstr = optarg - 1; 2373 zdb_noread.zb_objset = strtoull(endstr + 1, &endstr, 0); 2374 zdb_noread.zb_object = strtoull(endstr + 1, &endstr, 0); 2375 zdb_noread.zb_level = strtol(endstr + 1, &endstr, 0); 2376 zdb_noread.zb_blkid = strtoull(endstr + 1, &endstr, 16); 2377 (void) printf("simulating bad block " 2378 "<%llu, %llu, %lld, %llx>\n", 2379 (u_longlong_t)zdb_noread.zb_objset, 2380 (u_longlong_t)zdb_noread.zb_object, 2381 (u_longlong_t)zdb_noread.zb_level, 2382 (u_longlong_t)zdb_noread.zb_blkid); 2383 break; 2384 case 'v': 2385 verbose++; 2386 break; 2387 case 'U': 2388 cachefile = optarg; 2389 break; 2390 case 'e': 2391 exported = 1; 2392 break; 2393 case 'p': 2394 vdev_dir = optarg; 2395 break; 2396 case 'S': 2397 dump_opt[c]++; 2398 dump_all = 0; 2399 zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0); 2400 if (!zdb_sig_user_data && strncmp(optarg, "all:", 4)) 2401 usage(); 2402 endstr = strchr(optarg, ':') + 1; 2403 if (strcmp(endstr, "fletcher2") == 0) 2404 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2405 else if (strcmp(endstr, "fletcher4") == 0) 2406 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4; 2407 else if (strcmp(endstr, "sha256") == 0) 2408 zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; 2409 else if (strcmp(endstr, "all") == 0) 2410 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2411 else 2412 usage(); 2413 break; 2414 default: 2415 usage(); 2416 break; 2417 } 2418 } 2419 2420 if (vdev_dir != NULL && exported == 0) 2421 (void) fatal("-p option requires use of -e\n"); 2422 2423 kernel_init(FREAD); 2424 g_zfs = libzfs_init(); 2425 ASSERT(g_zfs != NULL); 2426 2427 /* 2428 * Disable vdev caching. If we don't do this, live pool traversal 2429 * won't make progress because it will never see disk updates. 2430 */ 2431 zfs_vdev_cache_size = 0; 2432 2433 for (c = 0; c < 256; c++) { 2434 if (dump_all && c != 'L' && c != 'l' && c != 'R') 2435 dump_opt[c] = 1; 2436 if (dump_opt[c]) 2437 dump_opt[c] += verbose; 2438 } 2439 2440 argc -= optind; 2441 argv += optind; 2442 2443 if (argc < 1) { 2444 if (dump_opt['C']) { 2445 dump_config(NULL); 2446 return (0); 2447 } 2448 usage(); 2449 } 2450 2451 if (dump_opt['l']) { 2452 dump_label(argv[0]); 2453 return (0); 2454 } 2455 2456 if (dump_opt['R']) { 2457 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 2458 flagbits['c'] = ZDB_FLAG_CHECKSUM; 2459 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 2460 flagbits['e'] = ZDB_FLAG_BSWAP; 2461 flagbits['g'] = ZDB_FLAG_GBH; 2462 flagbits['i'] = ZDB_FLAG_INDIRECT; 2463 flagbits['p'] = ZDB_FLAG_PHYS; 2464 flagbits['r'] = ZDB_FLAG_RAW; 2465 2466 spa = NULL; 2467 while (argv[0]) { 2468 zdb_read_block(argv[0], &spa); 2469 argv++; 2470 argc--; 2471 } 2472 if (spa) 2473 spa_close(spa, (void *)zdb_read_block); 2474 return (0); 2475 } 2476 2477 if (dump_opt['C']) 2478 dump_config(argv[0]); 2479 2480 if (exported == 0 && cachefile == NULL) { 2481 if (strchr(argv[0], '/') != NULL) { 2482 error = dmu_objset_open(argv[0], DMU_OST_ANY, 2483 DS_MODE_STANDARD | DS_MODE_READONLY, &os); 2484 } else { 2485 error = spa_open(argv[0], &spa, FTAG); 2486 } 2487 } else { 2488 /* 2489 * Check to see if the name refers to an exported zpool 2490 */ 2491 nvlist_t *exported_conf = NULL; 2492 2493 error = find_exported_zpool(argv[0], &exported_conf, vdev_dir, 2494 cachefile); 2495 if (error == 0) { 2496 nvlist_t *nvl = NULL; 2497 2498 if (vdev_dir != NULL) { 2499 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 2500 error = ENOMEM; 2501 else if (nvlist_add_string(nvl, 2502 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), 2503 vdev_dir) != 0) 2504 error = ENOMEM; 2505 } 2506 2507 if (error == 0) 2508 error = spa_import(argv[0], exported_conf, nvl); 2509 if (error == 0) 2510 error = spa_open(argv[0], &spa, FTAG); 2511 2512 nvlist_free(nvl); 2513 } 2514 } 2515 2516 if (error) 2517 fatal("can't open %s: %s", argv[0], strerror(error)); 2518 2519 argv++; 2520 if (--argc > 0) { 2521 zopt_objects = argc; 2522 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 2523 for (i = 0; i < zopt_objects; i++) { 2524 errno = 0; 2525 zopt_object[i] = strtoull(argv[i], NULL, 0); 2526 if (zopt_object[i] == 0 && errno != 0) 2527 fatal("bad object number %s: %s", 2528 argv[i], strerror(errno)); 2529 } 2530 } 2531 2532 if (os != NULL) { 2533 dump_dir(os); 2534 dmu_objset_close(os); 2535 } else { 2536 dump_zpool(spa); 2537 spa_close(spa, FTAG); 2538 } 2539 2540 fuid_table_destroy(); 2541 2542 libzfs_fini(g_zfs); 2543 kernel_fini(); 2544 2545 return (0); 2546 } 2547