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 pool: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 static void 1121 dump_dir(objset_t *os) 1122 { 1123 dmu_objset_stats_t dds; 1124 uint64_t object, object_count; 1125 uint64_t refdbytes, usedobjs, scratch; 1126 char numbuf[8]; 1127 char blkbuf[BP_SPRINTF_LEN]; 1128 char osname[MAXNAMELEN]; 1129 char *type = "UNKNOWN"; 1130 int verbosity = dump_opt['d']; 1131 int print_header = 1; 1132 int i, error; 1133 1134 dmu_objset_fast_stat(os, &dds); 1135 1136 if (dds.dds_type < DMU_OST_NUMTYPES) 1137 type = objset_types[dds.dds_type]; 1138 1139 if (dds.dds_type == DMU_OST_META) { 1140 dds.dds_creation_txg = TXG_INITIAL; 1141 usedobjs = os->os->os_rootbp->blk_fill; 1142 refdbytes = 1143 os->os->os_spa->spa_dsl_pool->dp_mos_dir->dd_used_bytes; 1144 } else { 1145 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1146 } 1147 1148 ASSERT3U(usedobjs, ==, os->os->os_rootbp->blk_fill); 1149 1150 nicenum(refdbytes, numbuf); 1151 1152 if (verbosity >= 4) { 1153 (void) strcpy(blkbuf, ", rootbp "); 1154 sprintf_blkptr(blkbuf + strlen(blkbuf), 1155 BP_SPRINTF_LEN - strlen(blkbuf), os->os->os_rootbp); 1156 } else { 1157 blkbuf[0] = '\0'; 1158 } 1159 1160 dmu_objset_name(os, osname); 1161 1162 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1163 "%s, %llu objects%s\n", 1164 osname, type, (u_longlong_t)dmu_objset_id(os), 1165 (u_longlong_t)dds.dds_creation_txg, 1166 numbuf, (u_longlong_t)usedobjs, blkbuf); 1167 1168 dump_intent_log(dmu_objset_zil(os)); 1169 1170 if (dmu_objset_ds(os) != NULL) 1171 dump_bplist(dmu_objset_pool(os)->dp_meta_objset, 1172 dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist"); 1173 1174 if (verbosity < 2) 1175 return; 1176 1177 if (zopt_objects != 0) { 1178 for (i = 0; i < zopt_objects; i++) 1179 dump_object(os, zopt_object[i], verbosity, 1180 &print_header); 1181 (void) printf("\n"); 1182 return; 1183 } 1184 1185 dump_object(os, 0, verbosity, &print_header); 1186 object_count = 1; 1187 1188 object = 0; 1189 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1190 dump_object(os, object, verbosity, &print_header); 1191 object_count++; 1192 } 1193 1194 ASSERT3U(object_count, ==, usedobjs); 1195 1196 (void) printf("\n"); 1197 1198 if (error != ESRCH) 1199 fatal("dmu_object_next() = %d", error); 1200 } 1201 1202 static void 1203 dump_uberblock(uberblock_t *ub) 1204 { 1205 time_t timestamp = ub->ub_timestamp; 1206 1207 (void) printf("Uberblock\n\n"); 1208 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1209 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1210 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1211 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1212 (void) printf("\ttimestamp = %llu UTC = %s", 1213 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1214 if (dump_opt['u'] >= 3) { 1215 char blkbuf[BP_SPRINTF_LEN]; 1216 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ub->ub_rootbp); 1217 (void) printf("\trootbp = %s\n", blkbuf); 1218 } 1219 (void) printf("\n"); 1220 } 1221 1222 static void 1223 dump_config(const char *pool) 1224 { 1225 spa_t *spa = NULL; 1226 1227 mutex_enter(&spa_namespace_lock); 1228 while ((spa = spa_next(spa)) != NULL) { 1229 if (pool == NULL) 1230 (void) printf("%s\n", spa_name(spa)); 1231 if (pool == NULL || strcmp(pool, spa_name(spa)) == 0) 1232 dump_nvlist(spa->spa_config, 4); 1233 } 1234 mutex_exit(&spa_namespace_lock); 1235 } 1236 1237 static void 1238 dump_label(const char *dev) 1239 { 1240 int fd; 1241 vdev_label_t label; 1242 char *buf = label.vl_vdev_phys.vp_nvlist; 1243 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1244 struct stat64 statbuf; 1245 uint64_t psize; 1246 int l; 1247 1248 if ((fd = open64(dev, O_RDONLY)) < 0) { 1249 (void) printf("cannot open '%s': %s\n", dev, strerror(errno)); 1250 exit(1); 1251 } 1252 1253 if (fstat64(fd, &statbuf) != 0) { 1254 (void) printf("failed to stat '%s': %s\n", dev, 1255 strerror(errno)); 1256 exit(1); 1257 } 1258 1259 psize = statbuf.st_size; 1260 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 1261 1262 for (l = 0; l < VDEV_LABELS; l++) { 1263 1264 nvlist_t *config = NULL; 1265 1266 (void) printf("--------------------------------------------\n"); 1267 (void) printf("LABEL %d\n", l); 1268 (void) printf("--------------------------------------------\n"); 1269 1270 if (pread64(fd, &label, sizeof (label), 1271 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 1272 (void) printf("failed to read label %d\n", l); 1273 continue; 1274 } 1275 1276 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 1277 (void) printf("failed to unpack label %d\n", l); 1278 continue; 1279 } 1280 dump_nvlist(config, 4); 1281 nvlist_free(config); 1282 } 1283 } 1284 1285 /*ARGSUSED*/ 1286 static int 1287 dump_one_dir(char *dsname, void *arg) 1288 { 1289 int error; 1290 objset_t *os; 1291 1292 error = dmu_objset_open(dsname, DMU_OST_ANY, 1293 DS_MODE_STANDARD | DS_MODE_READONLY, &os); 1294 if (error) { 1295 (void) printf("Could not open %s\n", dsname); 1296 return (0); 1297 } 1298 dump_dir(os); 1299 dmu_objset_close(os); 1300 fuid_table_destroy(); 1301 return (0); 1302 } 1303 1304 static void 1305 zdb_space_map_load(spa_t *spa) 1306 { 1307 vdev_t *rvd = spa->spa_root_vdev; 1308 vdev_t *vd; 1309 int c, m, error; 1310 1311 for (c = 0; c < rvd->vdev_children; c++) { 1312 vd = rvd->vdev_child[c]; 1313 for (m = 0; m < vd->vdev_ms_count; m++) { 1314 metaslab_t *msp = vd->vdev_ms[m]; 1315 mutex_enter(&msp->ms_lock); 1316 error = space_map_load(&msp->ms_allocmap[0], NULL, 1317 SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset); 1318 mutex_exit(&msp->ms_lock); 1319 if (error) 1320 fatal("%s bad space map #%d, error %d", 1321 spa->spa_name, c, error); 1322 } 1323 } 1324 } 1325 1326 static int 1327 zdb_space_map_claim(spa_t *spa, blkptr_t *bp, zbookmark_t *zb) 1328 { 1329 dva_t *dva = bp->blk_dva; 1330 vdev_t *vd; 1331 metaslab_t *msp; 1332 space_map_t *allocmap, *freemap; 1333 int error; 1334 int d; 1335 blkptr_t blk = *bp; 1336 1337 for (d = 0; d < BP_GET_NDVAS(bp); d++) { 1338 uint64_t vdev = DVA_GET_VDEV(&dva[d]); 1339 uint64_t offset = DVA_GET_OFFSET(&dva[d]); 1340 uint64_t size = DVA_GET_ASIZE(&dva[d]); 1341 1342 if ((vd = vdev_lookup_top(spa, vdev)) == NULL) 1343 return (ENXIO); 1344 1345 if ((offset >> vd->vdev_ms_shift) >= vd->vdev_ms_count) 1346 return (ENXIO); 1347 1348 msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 1349 allocmap = &msp->ms_allocmap[0]; 1350 freemap = &msp->ms_freemap[0]; 1351 1352 /* Prepare our copy of the bp in case we need to read GBHs */ 1353 if (DVA_GET_GANG(&dva[d])) { 1354 size = vdev_psize_to_asize(vd, SPA_GANGBLOCKSIZE); 1355 DVA_SET_ASIZE(&blk.blk_dva[d], size); 1356 DVA_SET_GANG(&blk.blk_dva[d], 0); 1357 } 1358 1359 mutex_enter(&msp->ms_lock); 1360 if (space_map_contains(freemap, offset, size)) { 1361 mutex_exit(&msp->ms_lock); 1362 return (EAGAIN); /* allocated more than once */ 1363 } 1364 1365 if (!space_map_contains(allocmap, offset, size)) { 1366 mutex_exit(&msp->ms_lock); 1367 return (ESTALE); /* not allocated at all */ 1368 } 1369 1370 space_map_remove(allocmap, offset, size); 1371 space_map_add(freemap, offset, size); 1372 1373 mutex_exit(&msp->ms_lock); 1374 } 1375 1376 if (BP_IS_GANG(bp)) { 1377 zio_gbh_phys_t gbh; 1378 int g; 1379 1380 /* LINTED - compile time assert */ 1381 ASSERT(sizeof (zio_gbh_phys_t) == SPA_GANGBLOCKSIZE); 1382 1383 BP_SET_CHECKSUM(&blk, ZIO_CHECKSUM_GANG_HEADER); 1384 BP_SET_PSIZE(&blk, SPA_GANGBLOCKSIZE); 1385 BP_SET_LSIZE(&blk, SPA_GANGBLOCKSIZE); 1386 BP_SET_COMPRESS(&blk, ZIO_COMPRESS_OFF); 1387 error = zio_wait(zio_read(NULL, spa, &blk, &gbh, 1388 SPA_GANGBLOCKSIZE, NULL, NULL, ZIO_PRIORITY_SYNC_READ, 1389 ZIO_FLAG_CANFAIL | ZIO_FLAG_CONFIG_HELD, zb)); 1390 if (error) 1391 return (error); 1392 if (BP_SHOULD_BYTESWAP(&blk)) 1393 byteswap_uint64_array(&gbh, SPA_GANGBLOCKSIZE); 1394 for (g = 0; g < SPA_GBH_NBLKPTRS; g++) { 1395 if (BP_IS_HOLE(&gbh.zg_blkptr[g])) 1396 break; 1397 error = zdb_space_map_claim(spa, &gbh.zg_blkptr[g], zb); 1398 if (error) 1399 return (error); 1400 } 1401 } 1402 1403 return (0); 1404 } 1405 1406 static void 1407 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size) 1408 { 1409 metaslab_t *msp; 1410 1411 /* LINTED */ 1412 msp = (metaslab_t *)((char *)sm - offsetof(metaslab_t, ms_allocmap[0])); 1413 1414 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 1415 (u_longlong_t)msp->ms_group->mg_vd->vdev_id, 1416 (u_longlong_t)start, 1417 (u_longlong_t)size); 1418 } 1419 1420 static void 1421 zdb_space_map_unload(spa_t *spa) 1422 { 1423 vdev_t *rvd = spa->spa_root_vdev; 1424 vdev_t *vd; 1425 int c, m; 1426 1427 for (c = 0; c < rvd->vdev_children; c++) { 1428 vd = rvd->vdev_child[c]; 1429 for (m = 0; m < vd->vdev_ms_count; m++) { 1430 metaslab_t *msp = vd->vdev_ms[m]; 1431 mutex_enter(&msp->ms_lock); 1432 space_map_vacate(&msp->ms_allocmap[0], zdb_leak, 1433 &msp->ms_allocmap[0]); 1434 space_map_unload(&msp->ms_allocmap[0]); 1435 space_map_vacate(&msp->ms_freemap[0], NULL, NULL); 1436 mutex_exit(&msp->ms_lock); 1437 } 1438 } 1439 } 1440 1441 static void 1442 zdb_refresh_ubsync(spa_t *spa) 1443 { 1444 uberblock_t ub = { 0 }; 1445 vdev_t *rvd = spa->spa_root_vdev; 1446 zio_t *zio; 1447 1448 /* 1449 * Reload the uberblock. 1450 */ 1451 zio = zio_root(spa, NULL, NULL, 1452 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); 1453 vdev_uberblock_load(zio, rvd, &ub); 1454 (void) zio_wait(zio); 1455 1456 if (ub.ub_txg != 0) 1457 spa->spa_ubsync = ub; 1458 } 1459 1460 /* 1461 * Verify that the sum of the sizes of all blocks in the pool adds up 1462 * to the SPA's sa_alloc total. 1463 */ 1464 typedef struct zdb_blkstats { 1465 uint64_t zb_asize; 1466 uint64_t zb_lsize; 1467 uint64_t zb_psize; 1468 uint64_t zb_count; 1469 } zdb_blkstats_t; 1470 1471 #define DMU_OT_DEFERRED DMU_OT_NONE 1472 #define DMU_OT_TOTAL DMU_OT_NUMTYPES 1473 1474 #define ZB_TOTAL ZB_MAXLEVEL 1475 1476 typedef struct zdb_cb { 1477 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1]; 1478 uint64_t zcb_errors[256]; 1479 traverse_blk_cache_t *zcb_cache; 1480 int zcb_readfails; 1481 int zcb_haderrors; 1482 } zdb_cb_t; 1483 1484 static void 1485 zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, int type) 1486 { 1487 int i, error; 1488 1489 for (i = 0; i < 4; i++) { 1490 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 1491 int t = (i & 1) ? type : DMU_OT_TOTAL; 1492 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 1493 1494 zb->zb_asize += BP_GET_ASIZE(bp); 1495 zb->zb_lsize += BP_GET_LSIZE(bp); 1496 zb->zb_psize += BP_GET_PSIZE(bp); 1497 zb->zb_count++; 1498 } 1499 1500 if (dump_opt['S']) { 1501 boolean_t print_sig; 1502 1503 print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 && 1504 BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS); 1505 1506 if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg) 1507 print_sig = B_FALSE; 1508 1509 if (print_sig) { 1510 (void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t" 1511 "%llx:%llx:%llx:%llx\n", 1512 (u_longlong_t)BP_GET_LEVEL(bp), 1513 (longlong_t)BP_GET_PSIZE(bp), 1514 (longlong_t)BP_GET_NDVAS(bp), 1515 dmu_ot[BP_GET_TYPE(bp)].ot_name, 1516 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1517 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name, 1518 (u_longlong_t)bp->blk_cksum.zc_word[0], 1519 (u_longlong_t)bp->blk_cksum.zc_word[1], 1520 (u_longlong_t)bp->blk_cksum.zc_word[2], 1521 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1522 } 1523 } 1524 1525 if (dump_opt['L']) 1526 return; 1527 1528 error = zdb_space_map_claim(spa, bp, &zcb->zcb_cache->bc_bookmark); 1529 1530 if (error == 0) 1531 return; 1532 1533 if (error == EAGAIN) 1534 (void) fatal("double-allocation, bp=%p", bp); 1535 1536 if (error == ESTALE) 1537 (void) fatal("reference to freed block, bp=%p", bp); 1538 1539 (void) fatal("fatal error %d in bp %p", error, bp); 1540 } 1541 1542 static int 1543 zdb_blkptr_cb(traverse_blk_cache_t *bc, spa_t *spa, void *arg) 1544 { 1545 zbookmark_t *zb = &bc->bc_bookmark; 1546 zdb_cb_t *zcb = arg; 1547 blkptr_t *bp = &bc->bc_blkptr; 1548 dmu_object_type_t type = BP_GET_TYPE(bp); 1549 char blkbuf[BP_SPRINTF_LEN]; 1550 int error = 0; 1551 1552 if (bc->bc_errno) { 1553 if (zcb->zcb_readfails++ < 10 && dump_opt['L']) { 1554 zdb_refresh_ubsync(spa); 1555 error = EAGAIN; 1556 } else { 1557 zcb->zcb_haderrors = 1; 1558 zcb->zcb_errors[bc->bc_errno]++; 1559 error = ERESTART; 1560 } 1561 1562 if (dump_opt['b'] >= 3 || (dump_opt['b'] >= 2 && bc->bc_errno)) 1563 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1564 else 1565 blkbuf[0] = '\0'; 1566 1567 if (!dump_opt['S']) { 1568 (void) printf("zdb_blkptr_cb: Got error %d reading " 1569 "<%llu, %llu, %lld, %llx> %s -- %s\n", 1570 bc->bc_errno, 1571 (u_longlong_t)zb->zb_objset, 1572 (u_longlong_t)zb->zb_object, 1573 (u_longlong_t)zb->zb_level, 1574 (u_longlong_t)zb->zb_blkid, 1575 blkbuf, 1576 error == EAGAIN ? "retrying" : "skipping"); 1577 } 1578 1579 return (error); 1580 } 1581 1582 zcb->zcb_readfails = 0; 1583 1584 ASSERT(!BP_IS_HOLE(bp)); 1585 1586 if (dump_opt['b'] >= 4) { 1587 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1588 (void) printf("objset %llu object %llu offset 0x%llx %s\n", 1589 (u_longlong_t)zb->zb_objset, 1590 (u_longlong_t)zb->zb_object, 1591 (u_longlong_t)blkid2offset(bc->bc_dnode, 1592 zb->zb_level, zb->zb_blkid), blkbuf); 1593 } 1594 1595 zdb_count_block(spa, zcb, bp, type); 1596 1597 return (0); 1598 } 1599 1600 static int 1601 dump_block_stats(spa_t *spa) 1602 { 1603 traverse_handle_t *th; 1604 zdb_cb_t zcb = { 0 }; 1605 traverse_blk_cache_t dummy_cache = { 0 }; 1606 zdb_blkstats_t *zb, *tzb; 1607 uint64_t alloc, space, logalloc; 1608 vdev_t *rvd = spa->spa_root_vdev; 1609 int leaks = 0; 1610 int advance = zdb_advance; 1611 int c, e, flags; 1612 1613 zcb.zcb_cache = &dummy_cache; 1614 1615 if (dump_opt['c'] || dump_opt['S']) 1616 advance |= ADVANCE_DATA; 1617 1618 advance |= ADVANCE_PRUNE | ADVANCE_ZIL; 1619 1620 if (!dump_opt['S']) { 1621 (void) printf("\nTraversing all blocks to %sverify" 1622 " nothing leaked ...\n", 1623 dump_opt['c'] ? "verify checksums and " : ""); 1624 } 1625 1626 /* 1627 * Load all space maps. As we traverse the pool, if we find a block 1628 * that's not in its space map, that indicates a double-allocation, 1629 * reference to a freed block, or an unclaimed block. Otherwise we 1630 * remove the block from the space map. If the space maps are not 1631 * empty when we're done, that indicates leaked blocks. 1632 */ 1633 if (!dump_opt['L']) 1634 zdb_space_map_load(spa); 1635 1636 /* 1637 * If there's a deferred-free bplist, process that first. 1638 */ 1639 if (spa->spa_sync_bplist_obj != 0) { 1640 bplist_t *bpl = &spa->spa_sync_bplist; 1641 blkptr_t blk; 1642 uint64_t itor = 0; 1643 1644 VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset, 1645 spa->spa_sync_bplist_obj)); 1646 1647 while (bplist_iterate(bpl, &itor, &blk) == 0) { 1648 if (dump_opt['b'] >= 4) { 1649 char blkbuf[BP_SPRINTF_LEN]; 1650 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk); 1651 (void) printf("[%s] %s\n", 1652 "deferred free", blkbuf); 1653 } 1654 zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED); 1655 } 1656 1657 bplist_close(bpl); 1658 } 1659 1660 /* 1661 * Now traverse the pool. If we're reading all data to verify 1662 * checksums, do a scrubbing read so that we validate all copies. 1663 */ 1664 flags = ZIO_FLAG_CANFAIL; 1665 if (advance & ADVANCE_DATA) 1666 flags |= ZIO_FLAG_SCRUB; 1667 th = traverse_init(spa, zdb_blkptr_cb, &zcb, advance, flags); 1668 th->th_noread = zdb_noread; 1669 1670 traverse_add_pool(th, 0, spa_first_txg(spa) + TXG_CONCURRENT_STATES); 1671 1672 while (traverse_more(th) == EAGAIN) 1673 continue; 1674 1675 traverse_fini(th); 1676 1677 if (zcb.zcb_haderrors && !dump_opt['S']) { 1678 (void) printf("\nError counts:\n\n"); 1679 (void) printf("\t%5s %s\n", "errno", "count"); 1680 for (e = 0; e < 256; e++) { 1681 if (zcb.zcb_errors[e] != 0) { 1682 (void) printf("\t%5d %llu\n", 1683 e, (u_longlong_t)zcb.zcb_errors[e]); 1684 } 1685 } 1686 } 1687 1688 /* 1689 * Report any leaked segments. 1690 */ 1691 if (!dump_opt['L']) 1692 zdb_space_map_unload(spa); 1693 1694 /* 1695 * If we're interested in printing out the blkptr signatures, 1696 * return now as we don't print out anything else (including 1697 * errors and leaks). 1698 */ 1699 if (dump_opt['S']) 1700 return (zcb.zcb_haderrors ? 3 : 0); 1701 1702 if (dump_opt['L']) 1703 (void) printf("\n\n *** Live pool traversal; " 1704 "block counts are only approximate ***\n\n"); 1705 1706 alloc = spa_get_alloc(spa); 1707 space = spa_get_space(spa); 1708 1709 /* 1710 * Log blocks allocated from a separate log device don't count 1711 * as part of the normal pool space; factor them in here. 1712 */ 1713 logalloc = 0; 1714 1715 for (c = 0; c < rvd->vdev_children; c++) 1716 if (rvd->vdev_child[c]->vdev_islog) 1717 logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc; 1718 1719 tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL]; 1720 1721 if (tzb->zb_asize == alloc + logalloc) { 1722 (void) printf("\n\tNo leaks (block sum matches space" 1723 " maps exactly)\n"); 1724 } else { 1725 (void) printf("block traversal size %llu != alloc %llu " 1726 "(leaked %lld)\n", 1727 (u_longlong_t)tzb->zb_asize, 1728 (u_longlong_t)alloc + logalloc, 1729 (u_longlong_t)(alloc + logalloc - tzb->zb_asize)); 1730 leaks = 1; 1731 } 1732 1733 if (tzb->zb_count == 0) 1734 return (2); 1735 1736 (void) printf("\n"); 1737 (void) printf("\tbp count: %10llu\n", 1738 (u_longlong_t)tzb->zb_count); 1739 (void) printf("\tbp logical: %10llu\t avg: %6llu\n", 1740 (u_longlong_t)tzb->zb_lsize, 1741 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 1742 (void) printf("\tbp physical: %10llu\t avg:" 1743 " %6llu\tcompression: %6.2f\n", 1744 (u_longlong_t)tzb->zb_psize, 1745 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 1746 (double)tzb->zb_lsize / tzb->zb_psize); 1747 (void) printf("\tbp allocated: %10llu\t avg:" 1748 " %6llu\tcompression: %6.2f\n", 1749 (u_longlong_t)tzb->zb_asize, 1750 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 1751 (double)tzb->zb_lsize / tzb->zb_asize); 1752 (void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n", 1753 (u_longlong_t)alloc, 100.0 * alloc / space); 1754 1755 if (dump_opt['b'] >= 2) { 1756 int l, t, level; 1757 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 1758 "\t avg\t comp\t%%Total\tType\n"); 1759 1760 for (t = 0; t <= DMU_OT_NUMTYPES; t++) { 1761 char csize[6], lsize[6], psize[6], asize[6], avg[6]; 1762 char *typename; 1763 1764 typename = t == DMU_OT_DEFERRED ? "deferred free" : 1765 t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name; 1766 1767 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 1768 (void) printf("%6s\t%5s\t%5s\t%5s" 1769 "\t%5s\t%5s\t%6s\t%s\n", 1770 "-", 1771 "-", 1772 "-", 1773 "-", 1774 "-", 1775 "-", 1776 "-", 1777 typename); 1778 continue; 1779 } 1780 1781 for (l = ZB_TOTAL - 1; l >= -1; l--) { 1782 level = (l == -1 ? ZB_TOTAL : l); 1783 zb = &zcb.zcb_type[level][t]; 1784 1785 if (zb->zb_asize == 0) 1786 continue; 1787 1788 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 1789 continue; 1790 1791 if (level == 0 && zb->zb_asize == 1792 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 1793 continue; 1794 1795 nicenum(zb->zb_count, csize); 1796 nicenum(zb->zb_lsize, lsize); 1797 nicenum(zb->zb_psize, psize); 1798 nicenum(zb->zb_asize, asize); 1799 nicenum(zb->zb_asize / zb->zb_count, avg); 1800 1801 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 1802 "\t%5.2f\t%6.2f\t", 1803 csize, lsize, psize, asize, avg, 1804 (double)zb->zb_lsize / zb->zb_psize, 1805 100.0 * zb->zb_asize / tzb->zb_asize); 1806 1807 if (level == ZB_TOTAL) 1808 (void) printf("%s\n", typename); 1809 else 1810 (void) printf(" L%d %s\n", 1811 level, typename); 1812 } 1813 } 1814 } 1815 1816 (void) printf("\n"); 1817 1818 if (leaks) 1819 return (2); 1820 1821 if (zcb.zcb_haderrors) 1822 return (3); 1823 1824 return (0); 1825 } 1826 1827 static void 1828 dump_zpool(spa_t *spa) 1829 { 1830 dsl_pool_t *dp = spa_get_dsl(spa); 1831 int rc = 0; 1832 1833 spa_config_enter(spa, RW_READER, FTAG); 1834 1835 if (dump_opt['u']) 1836 dump_uberblock(&spa->spa_uberblock); 1837 1838 if (dump_opt['d'] || dump_opt['i']) { 1839 dump_dir(dp->dp_meta_objset); 1840 if (dump_opt['d'] >= 3) { 1841 dump_bplist(dp->dp_meta_objset, 1842 spa->spa_sync_bplist_obj, "Deferred frees"); 1843 dump_dtl(spa->spa_root_vdev, 0); 1844 dump_metaslabs(spa); 1845 } 1846 (void) dmu_objset_find(spa->spa_name, dump_one_dir, NULL, 1847 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 1848 } 1849 1850 if (dump_opt['b'] || dump_opt['c'] || dump_opt['S']) 1851 rc = dump_block_stats(spa); 1852 1853 if (dump_opt['s']) 1854 show_pool_stats(spa); 1855 1856 spa_config_exit(spa, FTAG); 1857 1858 if (rc != 0) 1859 exit(rc); 1860 } 1861 1862 #define ZDB_FLAG_CHECKSUM 0x0001 1863 #define ZDB_FLAG_DECOMPRESS 0x0002 1864 #define ZDB_FLAG_BSWAP 0x0004 1865 #define ZDB_FLAG_GBH 0x0008 1866 #define ZDB_FLAG_INDIRECT 0x0010 1867 #define ZDB_FLAG_PHYS 0x0020 1868 #define ZDB_FLAG_RAW 0x0040 1869 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 1870 1871 int flagbits[256]; 1872 1873 static void 1874 zdb_print_blkptr(blkptr_t *bp, int flags) 1875 { 1876 dva_t *dva = bp->blk_dva; 1877 int d; 1878 1879 if (flags & ZDB_FLAG_BSWAP) 1880 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 1881 /* 1882 * Super-ick warning: This code is also duplicated in 1883 * cmd/mdb/common/modules/zfs/zfs.c . Yeah, I hate code 1884 * replication, too. 1885 */ 1886 for (d = 0; d < BP_GET_NDVAS(bp); d++) { 1887 (void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d, 1888 (longlong_t)DVA_GET_VDEV(&dva[d]), 1889 (longlong_t)DVA_GET_OFFSET(&dva[d])); 1890 (void) printf("\tDVA[%d]: GANG: %-5s GRID: %04llx\t" 1891 "ASIZE: %llx\n", d, 1892 DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE", 1893 (longlong_t)DVA_GET_GRID(&dva[d]), 1894 (longlong_t)DVA_GET_ASIZE(&dva[d])); 1895 (void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d, 1896 (u_longlong_t)DVA_GET_VDEV(&dva[d]), 1897 (longlong_t)DVA_GET_OFFSET(&dva[d]), 1898 (longlong_t)BP_GET_PSIZE(bp), 1899 BP_SHOULD_BYTESWAP(bp) ? "e" : "", 1900 !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ? 1901 "d" : "", 1902 DVA_GET_GANG(&dva[d]) ? "g" : "", 1903 BP_GET_COMPRESS(bp) != 0 ? "d" : ""); 1904 } 1905 (void) printf("\tLSIZE: %-16llx\t\tPSIZE: %llx\n", 1906 (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp)); 1907 (void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE: %s\n", 1908 BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG", 1909 dmu_ot[BP_GET_TYPE(bp)].ot_name); 1910 (void) printf("\tBIRTH: %-16llx LEVEL: %-2llu\tFILL: %llx\n", 1911 (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp), 1912 (u_longlong_t)bp->blk_fill); 1913 (void) printf("\tCKFUNC: %-16s\t\tCOMP: %s\n", 1914 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1915 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name); 1916 (void) printf("\tCKSUM: %llx:%llx:%llx:%llx\n", 1917 (u_longlong_t)bp->blk_cksum.zc_word[0], 1918 (u_longlong_t)bp->blk_cksum.zc_word[1], 1919 (u_longlong_t)bp->blk_cksum.zc_word[2], 1920 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1921 } 1922 1923 static void 1924 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 1925 { 1926 int i; 1927 1928 for (i = 0; i < nbps; i++) 1929 zdb_print_blkptr(&bp[i], flags); 1930 } 1931 1932 static void 1933 zdb_dump_gbh(void *buf, int flags) 1934 { 1935 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 1936 } 1937 1938 static void 1939 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 1940 { 1941 if (flags & ZDB_FLAG_BSWAP) 1942 byteswap_uint64_array(buf, size); 1943 (void) write(2, buf, size); 1944 } 1945 1946 static void 1947 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 1948 { 1949 uint64_t *d = (uint64_t *)buf; 1950 int nwords = size / sizeof (uint64_t); 1951 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 1952 int i, j; 1953 char *hdr, *c; 1954 1955 1956 if (do_bswap) 1957 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 1958 else 1959 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 1960 1961 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 1962 1963 for (i = 0; i < nwords; i += 2) { 1964 (void) printf("%06llx: %016llx %016llx ", 1965 (u_longlong_t)(i * sizeof (uint64_t)), 1966 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 1967 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 1968 1969 c = (char *)&d[i]; 1970 for (j = 0; j < 2 * sizeof (uint64_t); j++) 1971 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 1972 (void) printf("\n"); 1973 } 1974 } 1975 1976 /* 1977 * There are two acceptable formats: 1978 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 1979 * child[.child]* - For example: 0.1.1 1980 * 1981 * The second form can be used to specify arbitrary vdevs anywhere 1982 * in the heirarchy. For example, in a pool with a mirror of 1983 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 1984 */ 1985 static vdev_t * 1986 zdb_vdev_lookup(vdev_t *vdev, char *path) 1987 { 1988 char *s, *p, *q; 1989 int i; 1990 1991 if (vdev == NULL) 1992 return (NULL); 1993 1994 /* First, assume the x.x.x.x format */ 1995 i = (int)strtoul(path, &s, 10); 1996 if (s == path || (s && *s != '.' && *s != '\0')) 1997 goto name; 1998 if (i < 0 || i >= vdev->vdev_children) 1999 return (NULL); 2000 2001 vdev = vdev->vdev_child[i]; 2002 if (*s == '\0') 2003 return (vdev); 2004 return (zdb_vdev_lookup(vdev, s+1)); 2005 2006 name: 2007 for (i = 0; i < vdev->vdev_children; i++) { 2008 vdev_t *vc = vdev->vdev_child[i]; 2009 2010 if (vc->vdev_path == NULL) { 2011 vc = zdb_vdev_lookup(vc, path); 2012 if (vc == NULL) 2013 continue; 2014 else 2015 return (vc); 2016 } 2017 2018 p = strrchr(vc->vdev_path, '/'); 2019 p = p ? p + 1 : vc->vdev_path; 2020 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2021 2022 if (strcmp(vc->vdev_path, path) == 0) 2023 return (vc); 2024 if (strcmp(p, path) == 0) 2025 return (vc); 2026 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2027 return (vc); 2028 } 2029 2030 return (NULL); 2031 } 2032 2033 /* 2034 * Read a block from a pool and print it out. The syntax of the 2035 * block descriptor is: 2036 * 2037 * pool:vdev_specifier:offset:size[:flags] 2038 * 2039 * pool - The name of the pool you wish to read from 2040 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2041 * offset - offset, in hex, in bytes 2042 * size - Amount of data to read, in hex, in bytes 2043 * flags - A string of characters specifying options 2044 * b: Decode a blkptr at given offset within block 2045 * *c: Calculate and display checksums 2046 * *d: Decompress data before dumping 2047 * e: Byteswap data before dumping 2048 * *g: Display data as a gang block header 2049 * *i: Display as an indirect block 2050 * p: Do I/O to physical offset 2051 * r: Dump raw data to stdout 2052 * 2053 * * = not yet implemented 2054 */ 2055 static void 2056 zdb_read_block(char *thing, spa_t **spap) 2057 { 2058 spa_t *spa = *spap; 2059 int flags = 0; 2060 uint64_t offset = 0, size = 0, blkptr_offset = 0; 2061 zio_t *zio; 2062 vdev_t *vd; 2063 void *buf; 2064 char *s, *p, *dup, *spa_name, *vdev, *flagstr; 2065 int i, error, zio_flags; 2066 2067 dup = strdup(thing); 2068 s = strtok(dup, ":"); 2069 spa_name = s ? s : ""; 2070 s = strtok(NULL, ":"); 2071 vdev = s ? s : ""; 2072 s = strtok(NULL, ":"); 2073 offset = strtoull(s ? s : "", NULL, 16); 2074 s = strtok(NULL, ":"); 2075 size = strtoull(s ? s : "", NULL, 16); 2076 s = strtok(NULL, ":"); 2077 flagstr = s ? s : ""; 2078 2079 s = NULL; 2080 if (size == 0) 2081 s = "size must not be zero"; 2082 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2083 s = "size must be a multiple of sector size"; 2084 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2085 s = "offset must be a multiple of sector size"; 2086 if (s) { 2087 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2088 free(dup); 2089 return; 2090 } 2091 2092 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2093 for (i = 0; flagstr[i]; i++) { 2094 int bit = flagbits[(uchar_t)flagstr[i]]; 2095 2096 if (bit == 0) { 2097 (void) printf("***Invalid flag: %c\n", 2098 flagstr[i]); 2099 continue; 2100 } 2101 flags |= bit; 2102 2103 /* If it's not something with an argument, keep going */ 2104 if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS | 2105 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2106 continue; 2107 2108 p = &flagstr[i + 1]; 2109 if (bit == ZDB_FLAG_PRINT_BLKPTR) 2110 blkptr_offset = strtoull(p, &p, 16); 2111 if (*p != ':' && *p != '\0') { 2112 (void) printf("***Invalid flag arg: '%s'\n", s); 2113 free(dup); 2114 return; 2115 } 2116 } 2117 } 2118 2119 if (spa == NULL || spa->spa_name == NULL || 2120 strcmp(spa->spa_name, spa_name)) { 2121 if (spa && spa->spa_name) 2122 spa_close(spa, (void *)zdb_read_block); 2123 error = spa_open(spa_name, spap, (void *)zdb_read_block); 2124 if (error) 2125 fatal("Failed to open pool '%s': %s", 2126 spa_name, strerror(error)); 2127 spa = *spap; 2128 } 2129 2130 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 2131 if (vd == NULL) { 2132 (void) printf("***Invalid vdev: %s\n", vdev); 2133 free(dup); 2134 return; 2135 } else { 2136 if (vd->vdev_path) 2137 (void) printf("Found vdev: %s\n", vd->vdev_path); 2138 else 2139 (void) printf("Found vdev type: %s\n", 2140 vd->vdev_ops->vdev_op_type); 2141 } 2142 2143 buf = umem_alloc(size, UMEM_NOFAIL); 2144 2145 zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 2146 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | ZIO_FLAG_NOBOOKMARK; 2147 2148 if (flags & ZDB_FLAG_PHYS) 2149 zio_flags |= ZIO_FLAG_PHYSICAL; 2150 2151 zio = zio_root(spa, NULL, NULL, 0); 2152 /* XXX todo - cons up a BP so RAID-Z will be happy */ 2153 zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size, 2154 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL)); 2155 error = zio_wait(zio); 2156 2157 if (error) { 2158 (void) printf("Read of %s failed, error: %d\n", thing, error); 2159 goto out; 2160 } 2161 2162 if (flags & ZDB_FLAG_PRINT_BLKPTR) 2163 zdb_print_blkptr((blkptr_t *)(void *) 2164 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 2165 else if (flags & ZDB_FLAG_RAW) 2166 zdb_dump_block_raw(buf, size, flags); 2167 else if (flags & ZDB_FLAG_INDIRECT) 2168 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 2169 flags); 2170 else if (flags & ZDB_FLAG_GBH) 2171 zdb_dump_gbh(buf, flags); 2172 else 2173 zdb_dump_block(thing, buf, size, flags); 2174 2175 out: 2176 umem_free(buf, size); 2177 free(dup); 2178 } 2179 2180 static boolean_t 2181 nvlist_string_match(nvlist_t *config, char *name, char *tgt) 2182 { 2183 char *s; 2184 2185 verify(nvlist_lookup_string(config, name, &s) == 0); 2186 return (strcmp(s, tgt) == 0); 2187 } 2188 2189 static boolean_t 2190 nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt) 2191 { 2192 uint64_t val; 2193 2194 verify(nvlist_lookup_uint64(config, name, &val) == 0); 2195 return (val == tgt); 2196 } 2197 2198 static boolean_t 2199 vdev_child_guid_match(nvlist_t *vdev, uint64_t guid) 2200 { 2201 nvlist_t **child; 2202 uint_t c, children; 2203 2204 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2205 &child, &children) == 0); 2206 for (c = 0; c < children; ++c) 2207 if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid)) 2208 return (B_TRUE); 2209 return (B_FALSE); 2210 } 2211 2212 static boolean_t 2213 vdev_child_string_match(nvlist_t *vdev, char *tgt) 2214 { 2215 nvlist_t **child; 2216 uint_t c, children; 2217 2218 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2219 &child, &children) == 0); 2220 for (c = 0; c < children; ++c) { 2221 if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) || 2222 nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt)) 2223 return (B_TRUE); 2224 } 2225 return (B_FALSE); 2226 } 2227 2228 static boolean_t 2229 vdev_guid_match(nvlist_t *config, uint64_t guid) 2230 { 2231 nvlist_t *nvroot; 2232 2233 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2234 &nvroot) == 0); 2235 2236 return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) || 2237 vdev_child_guid_match(nvroot, guid)); 2238 } 2239 2240 static boolean_t 2241 vdev_string_match(nvlist_t *config, char *tgt) 2242 { 2243 nvlist_t *nvroot; 2244 2245 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2246 &nvroot) == 0); 2247 2248 return (vdev_child_string_match(nvroot, tgt)); 2249 } 2250 2251 static boolean_t 2252 pool_match(nvlist_t *config, char *tgt) 2253 { 2254 uint64_t guid = strtoull(tgt, NULL, 0); 2255 2256 if (guid != 0) { 2257 return ( 2258 nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) || 2259 vdev_guid_match(config, guid)); 2260 } else { 2261 return ( 2262 nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) || 2263 vdev_string_match(config, tgt)); 2264 } 2265 } 2266 2267 static int 2268 find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir, 2269 char *cachefile) 2270 { 2271 nvlist_t *pools; 2272 int error = ENOENT; 2273 nvlist_t *match = NULL; 2274 2275 if (vdev_dir != NULL) 2276 pools = zpool_find_import(g_zfs, 1, &vdev_dir, B_TRUE); 2277 else if (cachefile != NULL) 2278 pools = zpool_find_import_cached(g_zfs, cachefile, B_TRUE); 2279 else 2280 pools = zpool_find_import(g_zfs, 0, NULL, B_TRUE); 2281 2282 if (pools != NULL) { 2283 nvpair_t *elem = NULL; 2284 2285 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 2286 verify(nvpair_value_nvlist(elem, configp) == 0); 2287 if (pool_match(*configp, pool_id)) { 2288 if (match != NULL) { 2289 (void) fatal( 2290 "More than one matching pool - " 2291 "specify guid/devid/device path."); 2292 } else { 2293 match = *configp; 2294 error = 0; 2295 } 2296 } 2297 } 2298 } 2299 2300 *configp = error ? NULL : match; 2301 2302 return (error); 2303 } 2304 2305 int 2306 main(int argc, char **argv) 2307 { 2308 int i, c; 2309 struct rlimit rl = { 1024, 1024 }; 2310 spa_t *spa; 2311 objset_t *os = NULL; 2312 char *endstr; 2313 int dump_all = 1; 2314 int verbose = 0; 2315 int error; 2316 int flag, set; 2317 int exported = 0; 2318 char *vdev_dir = NULL; 2319 char *cachefile = NULL; 2320 2321 (void) setrlimit(RLIMIT_NOFILE, &rl); 2322 (void) enable_extended_FILE_stdio(-1, -1); 2323 2324 dprintf_setup(&argc, argv); 2325 2326 while ((c = getopt(argc, argv, "udibcsvCLO:B:S:U:lRep:")) != -1) { 2327 switch (c) { 2328 case 'u': 2329 case 'd': 2330 case 'i': 2331 case 'b': 2332 case 'c': 2333 case 's': 2334 case 'C': 2335 case 'l': 2336 case 'R': 2337 dump_opt[c]++; 2338 dump_all = 0; 2339 break; 2340 case 'L': 2341 dump_opt[c]++; 2342 break; 2343 case 'O': 2344 endstr = optarg; 2345 if (endstr[0] == '!') { 2346 endstr++; 2347 set = 0; 2348 } else { 2349 set = 1; 2350 } 2351 if (strcmp(endstr, "post") == 0) { 2352 flag = ADVANCE_PRE; 2353 set = !set; 2354 } else if (strcmp(endstr, "pre") == 0) { 2355 flag = ADVANCE_PRE; 2356 } else if (strcmp(endstr, "prune") == 0) { 2357 flag = ADVANCE_PRUNE; 2358 } else if (strcmp(endstr, "data") == 0) { 2359 flag = ADVANCE_DATA; 2360 } else if (strcmp(endstr, "holes") == 0) { 2361 flag = ADVANCE_HOLES; 2362 } else { 2363 usage(); 2364 } 2365 if (set) 2366 zdb_advance |= flag; 2367 else 2368 zdb_advance &= ~flag; 2369 break; 2370 case 'B': 2371 endstr = optarg - 1; 2372 zdb_noread.zb_objset = strtoull(endstr + 1, &endstr, 0); 2373 zdb_noread.zb_object = strtoull(endstr + 1, &endstr, 0); 2374 zdb_noread.zb_level = strtol(endstr + 1, &endstr, 0); 2375 zdb_noread.zb_blkid = strtoull(endstr + 1, &endstr, 16); 2376 (void) printf("simulating bad block " 2377 "<%llu, %llu, %lld, %llx>\n", 2378 (u_longlong_t)zdb_noread.zb_objset, 2379 (u_longlong_t)zdb_noread.zb_object, 2380 (u_longlong_t)zdb_noread.zb_level, 2381 (u_longlong_t)zdb_noread.zb_blkid); 2382 break; 2383 case 'v': 2384 verbose++; 2385 break; 2386 case 'U': 2387 cachefile = optarg; 2388 break; 2389 case 'e': 2390 exported = 1; 2391 break; 2392 case 'p': 2393 vdev_dir = optarg; 2394 break; 2395 case 'S': 2396 dump_opt[c]++; 2397 dump_all = 0; 2398 zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0); 2399 if (!zdb_sig_user_data && strncmp(optarg, "all:", 4)) 2400 usage(); 2401 endstr = strchr(optarg, ':') + 1; 2402 if (strcmp(endstr, "fletcher2") == 0) 2403 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2404 else if (strcmp(endstr, "fletcher4") == 0) 2405 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4; 2406 else if (strcmp(endstr, "sha256") == 0) 2407 zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; 2408 else if (strcmp(endstr, "all") == 0) 2409 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2410 else 2411 usage(); 2412 break; 2413 default: 2414 usage(); 2415 break; 2416 } 2417 } 2418 2419 if (vdev_dir != NULL && exported == 0) 2420 (void) fatal("-p option requires use of -e\n"); 2421 2422 kernel_init(FREAD); 2423 g_zfs = libzfs_init(); 2424 ASSERT(g_zfs != NULL); 2425 2426 /* 2427 * Disable vdev caching. If we don't do this, live pool traversal 2428 * won't make progress because it will never see disk updates. 2429 */ 2430 zfs_vdev_cache_size = 0; 2431 2432 for (c = 0; c < 256; c++) { 2433 if (dump_all && c != 'L' && c != 'l' && c != 'R') 2434 dump_opt[c] = 1; 2435 if (dump_opt[c]) 2436 dump_opt[c] += verbose; 2437 } 2438 2439 argc -= optind; 2440 argv += optind; 2441 2442 if (argc < 1) { 2443 if (dump_opt['C']) { 2444 dump_config(NULL); 2445 return (0); 2446 } 2447 usage(); 2448 } 2449 2450 if (dump_opt['l']) { 2451 dump_label(argv[0]); 2452 return (0); 2453 } 2454 2455 if (dump_opt['R']) { 2456 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 2457 flagbits['c'] = ZDB_FLAG_CHECKSUM; 2458 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 2459 flagbits['e'] = ZDB_FLAG_BSWAP; 2460 flagbits['g'] = ZDB_FLAG_GBH; 2461 flagbits['i'] = ZDB_FLAG_INDIRECT; 2462 flagbits['p'] = ZDB_FLAG_PHYS; 2463 flagbits['r'] = ZDB_FLAG_RAW; 2464 2465 spa = NULL; 2466 while (argv[0]) { 2467 zdb_read_block(argv[0], &spa); 2468 argv++; 2469 argc--; 2470 } 2471 if (spa) 2472 spa_close(spa, (void *)zdb_read_block); 2473 return (0); 2474 } 2475 2476 if (dump_opt['C']) 2477 dump_config(argv[0]); 2478 2479 if (exported == 0 && cachefile == NULL) { 2480 if (strchr(argv[0], '/') != NULL) { 2481 error = dmu_objset_open(argv[0], DMU_OST_ANY, 2482 DS_MODE_STANDARD | DS_MODE_READONLY, &os); 2483 } else { 2484 error = spa_open(argv[0], &spa, FTAG); 2485 } 2486 } else { 2487 /* 2488 * Check to see if the name refers to an exported zpool 2489 */ 2490 nvlist_t *exported_conf = NULL; 2491 2492 error = find_exported_zpool(argv[0], &exported_conf, vdev_dir, 2493 cachefile); 2494 if (error == 0) { 2495 nvlist_t *nvl = NULL; 2496 2497 if (vdev_dir != NULL) { 2498 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 2499 error = ENOMEM; 2500 else if (nvlist_add_string(nvl, 2501 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), 2502 vdev_dir) != 0) 2503 error = ENOMEM; 2504 } 2505 2506 if (error == 0) 2507 error = spa_import(argv[0], exported_conf, nvl); 2508 if (error == 0) 2509 error = spa_open(argv[0], &spa, FTAG); 2510 2511 nvlist_free(nvl); 2512 } 2513 } 2514 2515 if (error) 2516 fatal("can't open %s: %s", argv[0], strerror(error)); 2517 2518 argv++; 2519 if (--argc > 0) { 2520 zopt_objects = argc; 2521 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 2522 for (i = 0; i < zopt_objects; i++) { 2523 errno = 0; 2524 zopt_object[i] = strtoull(argv[i], NULL, 0); 2525 if (zopt_object[i] == 0 && errno != 0) 2526 fatal("bad object number %s: %s", 2527 argv[i], strerror(errno)); 2528 } 2529 } 2530 2531 if (os != NULL) { 2532 dump_dir(os); 2533 dmu_objset_close(os); 2534 } else { 2535 dump_zpool(spa); 2536 spa_close(spa, FTAG); 2537 } 2538 2539 fuid_table_destroy(); 2540 2541 libzfs_fini(g_zfs); 2542 kernel_fini(); 2543 2544 return (0); 2545 } 2546