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_cachefile(const char *cachefile) 1239 { 1240 int fd; 1241 struct stat64 statbuf; 1242 char *buf; 1243 nvlist_t *config; 1244 1245 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1246 (void) printf("cannot open '%s': %s\n", cachefile, 1247 strerror(errno)); 1248 exit(1); 1249 } 1250 1251 if (fstat64(fd, &statbuf) != 0) { 1252 (void) printf("failed to stat '%s': %s\n", cachefile, 1253 strerror(errno)); 1254 exit(1); 1255 } 1256 1257 if ((buf = malloc(statbuf.st_size)) == NULL) { 1258 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1259 (u_longlong_t)statbuf.st_size); 1260 exit(1); 1261 } 1262 1263 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1264 (void) fprintf(stderr, "failed to read %llu bytes\n", 1265 (u_longlong_t)statbuf.st_size); 1266 exit(1); 1267 } 1268 1269 (void) close(fd); 1270 1271 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1272 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1273 exit(1); 1274 } 1275 1276 free(buf); 1277 1278 dump_nvlist(config, 0); 1279 1280 nvlist_free(config); 1281 } 1282 1283 static void 1284 dump_label(const char *dev) 1285 { 1286 int fd; 1287 vdev_label_t label; 1288 char *buf = label.vl_vdev_phys.vp_nvlist; 1289 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1290 struct stat64 statbuf; 1291 uint64_t psize; 1292 int l; 1293 1294 if ((fd = open64(dev, O_RDONLY)) < 0) { 1295 (void) printf("cannot open '%s': %s\n", dev, strerror(errno)); 1296 exit(1); 1297 } 1298 1299 if (fstat64(fd, &statbuf) != 0) { 1300 (void) printf("failed to stat '%s': %s\n", dev, 1301 strerror(errno)); 1302 exit(1); 1303 } 1304 1305 psize = statbuf.st_size; 1306 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 1307 1308 for (l = 0; l < VDEV_LABELS; l++) { 1309 1310 nvlist_t *config = NULL; 1311 1312 (void) printf("--------------------------------------------\n"); 1313 (void) printf("LABEL %d\n", l); 1314 (void) printf("--------------------------------------------\n"); 1315 1316 if (pread64(fd, &label, sizeof (label), 1317 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 1318 (void) printf("failed to read label %d\n", l); 1319 continue; 1320 } 1321 1322 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 1323 (void) printf("failed to unpack label %d\n", l); 1324 continue; 1325 } 1326 dump_nvlist(config, 4); 1327 nvlist_free(config); 1328 } 1329 } 1330 1331 /*ARGSUSED*/ 1332 static int 1333 dump_one_dir(char *dsname, void *arg) 1334 { 1335 int error; 1336 objset_t *os; 1337 1338 error = dmu_objset_open(dsname, DMU_OST_ANY, 1339 DS_MODE_USER | DS_MODE_READONLY, &os); 1340 if (error) { 1341 (void) printf("Could not open %s\n", dsname); 1342 return (0); 1343 } 1344 dump_dir(os); 1345 dmu_objset_close(os); 1346 fuid_table_destroy(); 1347 return (0); 1348 } 1349 1350 static void 1351 zdb_space_map_load(spa_t *spa) 1352 { 1353 vdev_t *rvd = spa->spa_root_vdev; 1354 vdev_t *vd; 1355 int c, m, error; 1356 1357 for (c = 0; c < rvd->vdev_children; c++) { 1358 vd = rvd->vdev_child[c]; 1359 for (m = 0; m < vd->vdev_ms_count; m++) { 1360 metaslab_t *msp = vd->vdev_ms[m]; 1361 mutex_enter(&msp->ms_lock); 1362 error = space_map_load(&msp->ms_allocmap[0], NULL, 1363 SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset); 1364 mutex_exit(&msp->ms_lock); 1365 if (error) 1366 fatal("%s bad space map #%d, error %d", 1367 spa->spa_name, c, error); 1368 } 1369 } 1370 } 1371 1372 static int 1373 zdb_space_map_claim(spa_t *spa, blkptr_t *bp, zbookmark_t *zb) 1374 { 1375 dva_t *dva = bp->blk_dva; 1376 vdev_t *vd; 1377 metaslab_t *msp; 1378 space_map_t *allocmap, *freemap; 1379 int error; 1380 int d; 1381 blkptr_t blk = *bp; 1382 1383 for (d = 0; d < BP_GET_NDVAS(bp); d++) { 1384 uint64_t vdev = DVA_GET_VDEV(&dva[d]); 1385 uint64_t offset = DVA_GET_OFFSET(&dva[d]); 1386 uint64_t size = DVA_GET_ASIZE(&dva[d]); 1387 1388 if ((vd = vdev_lookup_top(spa, vdev)) == NULL) 1389 return (ENXIO); 1390 1391 if ((offset >> vd->vdev_ms_shift) >= vd->vdev_ms_count) 1392 return (ENXIO); 1393 1394 msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 1395 allocmap = &msp->ms_allocmap[0]; 1396 freemap = &msp->ms_freemap[0]; 1397 1398 /* Prepare our copy of the bp in case we need to read GBHs */ 1399 if (DVA_GET_GANG(&dva[d])) { 1400 size = vdev_psize_to_asize(vd, SPA_GANGBLOCKSIZE); 1401 DVA_SET_ASIZE(&blk.blk_dva[d], size); 1402 DVA_SET_GANG(&blk.blk_dva[d], 0); 1403 } 1404 1405 mutex_enter(&msp->ms_lock); 1406 if (space_map_contains(freemap, offset, size)) { 1407 mutex_exit(&msp->ms_lock); 1408 return (EAGAIN); /* allocated more than once */ 1409 } 1410 1411 if (!space_map_contains(allocmap, offset, size)) { 1412 mutex_exit(&msp->ms_lock); 1413 return (ESTALE); /* not allocated at all */ 1414 } 1415 1416 space_map_remove(allocmap, offset, size); 1417 space_map_add(freemap, offset, size); 1418 1419 mutex_exit(&msp->ms_lock); 1420 } 1421 1422 if (BP_IS_GANG(bp)) { 1423 zio_gbh_phys_t gbh; 1424 int g; 1425 1426 /* LINTED - compile time assert */ 1427 ASSERT(sizeof (zio_gbh_phys_t) == SPA_GANGBLOCKSIZE); 1428 1429 BP_SET_CHECKSUM(&blk, ZIO_CHECKSUM_GANG_HEADER); 1430 BP_SET_PSIZE(&blk, SPA_GANGBLOCKSIZE); 1431 BP_SET_LSIZE(&blk, SPA_GANGBLOCKSIZE); 1432 BP_SET_COMPRESS(&blk, ZIO_COMPRESS_OFF); 1433 error = zio_wait(zio_read(NULL, spa, &blk, &gbh, 1434 SPA_GANGBLOCKSIZE, NULL, NULL, ZIO_PRIORITY_SYNC_READ, 1435 ZIO_FLAG_CANFAIL | ZIO_FLAG_CONFIG_HELD, zb)); 1436 if (error) 1437 return (error); 1438 if (BP_SHOULD_BYTESWAP(&blk)) 1439 byteswap_uint64_array(&gbh, SPA_GANGBLOCKSIZE); 1440 for (g = 0; g < SPA_GBH_NBLKPTRS; g++) { 1441 if (BP_IS_HOLE(&gbh.zg_blkptr[g])) 1442 break; 1443 error = zdb_space_map_claim(spa, &gbh.zg_blkptr[g], zb); 1444 if (error) 1445 return (error); 1446 } 1447 } 1448 1449 return (0); 1450 } 1451 1452 static void 1453 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size) 1454 { 1455 metaslab_t *msp; 1456 1457 /* LINTED */ 1458 msp = (metaslab_t *)((char *)sm - offsetof(metaslab_t, ms_allocmap[0])); 1459 1460 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 1461 (u_longlong_t)msp->ms_group->mg_vd->vdev_id, 1462 (u_longlong_t)start, 1463 (u_longlong_t)size); 1464 } 1465 1466 static void 1467 zdb_space_map_unload(spa_t *spa) 1468 { 1469 vdev_t *rvd = spa->spa_root_vdev; 1470 vdev_t *vd; 1471 int c, m; 1472 1473 for (c = 0; c < rvd->vdev_children; c++) { 1474 vd = rvd->vdev_child[c]; 1475 for (m = 0; m < vd->vdev_ms_count; m++) { 1476 metaslab_t *msp = vd->vdev_ms[m]; 1477 mutex_enter(&msp->ms_lock); 1478 space_map_vacate(&msp->ms_allocmap[0], zdb_leak, 1479 &msp->ms_allocmap[0]); 1480 space_map_unload(&msp->ms_allocmap[0]); 1481 space_map_vacate(&msp->ms_freemap[0], NULL, NULL); 1482 mutex_exit(&msp->ms_lock); 1483 } 1484 } 1485 } 1486 1487 static void 1488 zdb_refresh_ubsync(spa_t *spa) 1489 { 1490 uberblock_t ub = { 0 }; 1491 vdev_t *rvd = spa->spa_root_vdev; 1492 zio_t *zio; 1493 1494 /* 1495 * Reload the uberblock. 1496 */ 1497 zio = zio_root(spa, NULL, NULL, 1498 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); 1499 vdev_uberblock_load(zio, rvd, &ub); 1500 (void) zio_wait(zio); 1501 1502 if (ub.ub_txg != 0) 1503 spa->spa_ubsync = ub; 1504 } 1505 1506 /* 1507 * Verify that the sum of the sizes of all blocks in the pool adds up 1508 * to the SPA's sa_alloc total. 1509 */ 1510 typedef struct zdb_blkstats { 1511 uint64_t zb_asize; 1512 uint64_t zb_lsize; 1513 uint64_t zb_psize; 1514 uint64_t zb_count; 1515 } zdb_blkstats_t; 1516 1517 #define DMU_OT_DEFERRED DMU_OT_NONE 1518 #define DMU_OT_TOTAL DMU_OT_NUMTYPES 1519 1520 #define ZB_TOTAL ZB_MAXLEVEL 1521 1522 typedef struct zdb_cb { 1523 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1]; 1524 uint64_t zcb_errors[256]; 1525 traverse_blk_cache_t *zcb_cache; 1526 int zcb_readfails; 1527 int zcb_haderrors; 1528 } zdb_cb_t; 1529 1530 static void 1531 zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, int type) 1532 { 1533 int i, error; 1534 1535 for (i = 0; i < 4; i++) { 1536 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 1537 int t = (i & 1) ? type : DMU_OT_TOTAL; 1538 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 1539 1540 zb->zb_asize += BP_GET_ASIZE(bp); 1541 zb->zb_lsize += BP_GET_LSIZE(bp); 1542 zb->zb_psize += BP_GET_PSIZE(bp); 1543 zb->zb_count++; 1544 } 1545 1546 if (dump_opt['S']) { 1547 boolean_t print_sig; 1548 1549 print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 && 1550 BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS); 1551 1552 if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg) 1553 print_sig = B_FALSE; 1554 1555 if (print_sig) { 1556 (void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t" 1557 "%llx:%llx:%llx:%llx\n", 1558 (u_longlong_t)BP_GET_LEVEL(bp), 1559 (longlong_t)BP_GET_PSIZE(bp), 1560 (longlong_t)BP_GET_NDVAS(bp), 1561 dmu_ot[BP_GET_TYPE(bp)].ot_name, 1562 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1563 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name, 1564 (u_longlong_t)bp->blk_cksum.zc_word[0], 1565 (u_longlong_t)bp->blk_cksum.zc_word[1], 1566 (u_longlong_t)bp->blk_cksum.zc_word[2], 1567 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1568 } 1569 } 1570 1571 if (dump_opt['L']) 1572 return; 1573 1574 error = zdb_space_map_claim(spa, bp, &zcb->zcb_cache->bc_bookmark); 1575 1576 if (error == 0) 1577 return; 1578 1579 if (error == EAGAIN) 1580 (void) fatal("double-allocation, bp=%p", bp); 1581 1582 if (error == ESTALE) 1583 (void) fatal("reference to freed block, bp=%p", bp); 1584 1585 (void) fatal("fatal error %d in bp %p", error, bp); 1586 } 1587 1588 static int 1589 zdb_blkptr_cb(traverse_blk_cache_t *bc, spa_t *spa, void *arg) 1590 { 1591 zbookmark_t *zb = &bc->bc_bookmark; 1592 zdb_cb_t *zcb = arg; 1593 blkptr_t *bp = &bc->bc_blkptr; 1594 dmu_object_type_t type = BP_GET_TYPE(bp); 1595 char blkbuf[BP_SPRINTF_LEN]; 1596 int error = 0; 1597 1598 if (bc->bc_errno) { 1599 if (zcb->zcb_readfails++ < 10 && dump_opt['L']) { 1600 zdb_refresh_ubsync(spa); 1601 error = EAGAIN; 1602 } else { 1603 zcb->zcb_haderrors = 1; 1604 zcb->zcb_errors[bc->bc_errno]++; 1605 error = ERESTART; 1606 } 1607 1608 if (dump_opt['b'] >= 3 || (dump_opt['b'] >= 2 && bc->bc_errno)) 1609 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1610 else 1611 blkbuf[0] = '\0'; 1612 1613 if (!dump_opt['S']) { 1614 (void) printf("zdb_blkptr_cb: Got error %d reading " 1615 "<%llu, %llu, %lld, %llx> %s -- %s\n", 1616 bc->bc_errno, 1617 (u_longlong_t)zb->zb_objset, 1618 (u_longlong_t)zb->zb_object, 1619 (u_longlong_t)zb->zb_level, 1620 (u_longlong_t)zb->zb_blkid, 1621 blkbuf, 1622 error == EAGAIN ? "retrying" : "skipping"); 1623 } 1624 1625 return (error); 1626 } 1627 1628 zcb->zcb_readfails = 0; 1629 1630 ASSERT(!BP_IS_HOLE(bp)); 1631 1632 if (dump_opt['b'] >= 4) { 1633 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1634 (void) printf("objset %llu object %llu offset 0x%llx %s\n", 1635 (u_longlong_t)zb->zb_objset, 1636 (u_longlong_t)zb->zb_object, 1637 (u_longlong_t)blkid2offset(bc->bc_dnode, 1638 zb->zb_level, zb->zb_blkid), blkbuf); 1639 } 1640 1641 zdb_count_block(spa, zcb, bp, type); 1642 1643 return (0); 1644 } 1645 1646 static int 1647 dump_block_stats(spa_t *spa) 1648 { 1649 traverse_handle_t *th; 1650 zdb_cb_t zcb = { 0 }; 1651 traverse_blk_cache_t dummy_cache = { 0 }; 1652 zdb_blkstats_t *zb, *tzb; 1653 uint64_t alloc, space, logalloc; 1654 vdev_t *rvd = spa->spa_root_vdev; 1655 int leaks = 0; 1656 int advance = zdb_advance; 1657 int c, e, flags; 1658 1659 zcb.zcb_cache = &dummy_cache; 1660 1661 if (dump_opt['c'] || dump_opt['S']) 1662 advance |= ADVANCE_DATA; 1663 1664 advance |= ADVANCE_PRUNE | ADVANCE_ZIL; 1665 1666 if (!dump_opt['S']) { 1667 (void) printf("\nTraversing all blocks to %sverify" 1668 " nothing leaked ...\n", 1669 dump_opt['c'] ? "verify checksums and " : ""); 1670 } 1671 1672 /* 1673 * Load all space maps. As we traverse the pool, if we find a block 1674 * that's not in its space map, that indicates a double-allocation, 1675 * reference to a freed block, or an unclaimed block. Otherwise we 1676 * remove the block from the space map. If the space maps are not 1677 * empty when we're done, that indicates leaked blocks. 1678 */ 1679 if (!dump_opt['L']) 1680 zdb_space_map_load(spa); 1681 1682 /* 1683 * If there's a deferred-free bplist, process that first. 1684 */ 1685 if (spa->spa_sync_bplist_obj != 0) { 1686 bplist_t *bpl = &spa->spa_sync_bplist; 1687 blkptr_t blk; 1688 uint64_t itor = 0; 1689 1690 VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset, 1691 spa->spa_sync_bplist_obj)); 1692 1693 while (bplist_iterate(bpl, &itor, &blk) == 0) { 1694 if (dump_opt['b'] >= 4) { 1695 char blkbuf[BP_SPRINTF_LEN]; 1696 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk); 1697 (void) printf("[%s] %s\n", 1698 "deferred free", blkbuf); 1699 } 1700 zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED); 1701 } 1702 1703 bplist_close(bpl); 1704 } 1705 1706 /* 1707 * Now traverse the pool. If we're reading all data to verify 1708 * checksums, do a scrubbing read so that we validate all copies. 1709 */ 1710 flags = ZIO_FLAG_CANFAIL; 1711 if (advance & ADVANCE_DATA) 1712 flags |= ZIO_FLAG_SCRUB; 1713 th = traverse_init(spa, zdb_blkptr_cb, &zcb, advance, flags); 1714 th->th_noread = zdb_noread; 1715 1716 traverse_add_pool(th, 0, spa_first_txg(spa) + TXG_CONCURRENT_STATES); 1717 1718 while (traverse_more(th) == EAGAIN) 1719 continue; 1720 1721 traverse_fini(th); 1722 1723 if (zcb.zcb_haderrors && !dump_opt['S']) { 1724 (void) printf("\nError counts:\n\n"); 1725 (void) printf("\t%5s %s\n", "errno", "count"); 1726 for (e = 0; e < 256; e++) { 1727 if (zcb.zcb_errors[e] != 0) { 1728 (void) printf("\t%5d %llu\n", 1729 e, (u_longlong_t)zcb.zcb_errors[e]); 1730 } 1731 } 1732 } 1733 1734 /* 1735 * Report any leaked segments. 1736 */ 1737 if (!dump_opt['L']) 1738 zdb_space_map_unload(spa); 1739 1740 /* 1741 * If we're interested in printing out the blkptr signatures, 1742 * return now as we don't print out anything else (including 1743 * errors and leaks). 1744 */ 1745 if (dump_opt['S']) 1746 return (zcb.zcb_haderrors ? 3 : 0); 1747 1748 if (dump_opt['L']) 1749 (void) printf("\n\n *** Live pool traversal; " 1750 "block counts are only approximate ***\n\n"); 1751 1752 alloc = spa_get_alloc(spa); 1753 space = spa_get_space(spa); 1754 1755 /* 1756 * Log blocks allocated from a separate log device don't count 1757 * as part of the normal pool space; factor them in here. 1758 */ 1759 logalloc = 0; 1760 1761 for (c = 0; c < rvd->vdev_children; c++) 1762 if (rvd->vdev_child[c]->vdev_islog) 1763 logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc; 1764 1765 tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL]; 1766 1767 if (tzb->zb_asize == alloc + logalloc) { 1768 (void) printf("\n\tNo leaks (block sum matches space" 1769 " maps exactly)\n"); 1770 } else { 1771 (void) printf("block traversal size %llu != alloc %llu " 1772 "(leaked %lld)\n", 1773 (u_longlong_t)tzb->zb_asize, 1774 (u_longlong_t)alloc + logalloc, 1775 (u_longlong_t)(alloc + logalloc - tzb->zb_asize)); 1776 leaks = 1; 1777 } 1778 1779 if (tzb->zb_count == 0) 1780 return (2); 1781 1782 (void) printf("\n"); 1783 (void) printf("\tbp count: %10llu\n", 1784 (u_longlong_t)tzb->zb_count); 1785 (void) printf("\tbp logical: %10llu\t avg: %6llu\n", 1786 (u_longlong_t)tzb->zb_lsize, 1787 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 1788 (void) printf("\tbp physical: %10llu\t avg:" 1789 " %6llu\tcompression: %6.2f\n", 1790 (u_longlong_t)tzb->zb_psize, 1791 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 1792 (double)tzb->zb_lsize / tzb->zb_psize); 1793 (void) printf("\tbp allocated: %10llu\t avg:" 1794 " %6llu\tcompression: %6.2f\n", 1795 (u_longlong_t)tzb->zb_asize, 1796 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 1797 (double)tzb->zb_lsize / tzb->zb_asize); 1798 (void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n", 1799 (u_longlong_t)alloc, 100.0 * alloc / space); 1800 1801 if (dump_opt['b'] >= 2) { 1802 int l, t, level; 1803 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 1804 "\t avg\t comp\t%%Total\tType\n"); 1805 1806 for (t = 0; t <= DMU_OT_NUMTYPES; t++) { 1807 char csize[6], lsize[6], psize[6], asize[6], avg[6]; 1808 char *typename; 1809 1810 typename = t == DMU_OT_DEFERRED ? "deferred free" : 1811 t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name; 1812 1813 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 1814 (void) printf("%6s\t%5s\t%5s\t%5s" 1815 "\t%5s\t%5s\t%6s\t%s\n", 1816 "-", 1817 "-", 1818 "-", 1819 "-", 1820 "-", 1821 "-", 1822 "-", 1823 typename); 1824 continue; 1825 } 1826 1827 for (l = ZB_TOTAL - 1; l >= -1; l--) { 1828 level = (l == -1 ? ZB_TOTAL : l); 1829 zb = &zcb.zcb_type[level][t]; 1830 1831 if (zb->zb_asize == 0) 1832 continue; 1833 1834 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 1835 continue; 1836 1837 if (level == 0 && zb->zb_asize == 1838 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 1839 continue; 1840 1841 nicenum(zb->zb_count, csize); 1842 nicenum(zb->zb_lsize, lsize); 1843 nicenum(zb->zb_psize, psize); 1844 nicenum(zb->zb_asize, asize); 1845 nicenum(zb->zb_asize / zb->zb_count, avg); 1846 1847 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 1848 "\t%5.2f\t%6.2f\t", 1849 csize, lsize, psize, asize, avg, 1850 (double)zb->zb_lsize / zb->zb_psize, 1851 100.0 * zb->zb_asize / tzb->zb_asize); 1852 1853 if (level == ZB_TOTAL) 1854 (void) printf("%s\n", typename); 1855 else 1856 (void) printf(" L%d %s\n", 1857 level, typename); 1858 } 1859 } 1860 } 1861 1862 (void) printf("\n"); 1863 1864 if (leaks) 1865 return (2); 1866 1867 if (zcb.zcb_haderrors) 1868 return (3); 1869 1870 return (0); 1871 } 1872 1873 static void 1874 dump_zpool(spa_t *spa) 1875 { 1876 dsl_pool_t *dp = spa_get_dsl(spa); 1877 int rc = 0; 1878 1879 spa_config_enter(spa, RW_READER, FTAG); 1880 1881 if (dump_opt['u']) 1882 dump_uberblock(&spa->spa_uberblock); 1883 1884 if (dump_opt['d'] || dump_opt['i']) { 1885 dump_dir(dp->dp_meta_objset); 1886 if (dump_opt['d'] >= 3) { 1887 dump_bplist(dp->dp_meta_objset, 1888 spa->spa_sync_bplist_obj, "Deferred frees"); 1889 dump_dtl(spa->spa_root_vdev, 0); 1890 dump_metaslabs(spa); 1891 } 1892 (void) dmu_objset_find(spa->spa_name, dump_one_dir, NULL, 1893 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 1894 } 1895 1896 if (dump_opt['b'] || dump_opt['c'] || dump_opt['S']) 1897 rc = dump_block_stats(spa); 1898 1899 if (dump_opt['s']) 1900 show_pool_stats(spa); 1901 1902 spa_config_exit(spa, FTAG); 1903 1904 if (rc != 0) 1905 exit(rc); 1906 } 1907 1908 #define ZDB_FLAG_CHECKSUM 0x0001 1909 #define ZDB_FLAG_DECOMPRESS 0x0002 1910 #define ZDB_FLAG_BSWAP 0x0004 1911 #define ZDB_FLAG_GBH 0x0008 1912 #define ZDB_FLAG_INDIRECT 0x0010 1913 #define ZDB_FLAG_PHYS 0x0020 1914 #define ZDB_FLAG_RAW 0x0040 1915 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 1916 1917 int flagbits[256]; 1918 1919 static void 1920 zdb_print_blkptr(blkptr_t *bp, int flags) 1921 { 1922 dva_t *dva = bp->blk_dva; 1923 int d; 1924 1925 if (flags & ZDB_FLAG_BSWAP) 1926 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 1927 /* 1928 * Super-ick warning: This code is also duplicated in 1929 * cmd/mdb/common/modules/zfs/zfs.c . Yeah, I hate code 1930 * replication, too. 1931 */ 1932 for (d = 0; d < BP_GET_NDVAS(bp); d++) { 1933 (void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d, 1934 (longlong_t)DVA_GET_VDEV(&dva[d]), 1935 (longlong_t)DVA_GET_OFFSET(&dva[d])); 1936 (void) printf("\tDVA[%d]: GANG: %-5s GRID: %04llx\t" 1937 "ASIZE: %llx\n", d, 1938 DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE", 1939 (longlong_t)DVA_GET_GRID(&dva[d]), 1940 (longlong_t)DVA_GET_ASIZE(&dva[d])); 1941 (void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d, 1942 (u_longlong_t)DVA_GET_VDEV(&dva[d]), 1943 (longlong_t)DVA_GET_OFFSET(&dva[d]), 1944 (longlong_t)BP_GET_PSIZE(bp), 1945 BP_SHOULD_BYTESWAP(bp) ? "e" : "", 1946 !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ? 1947 "d" : "", 1948 DVA_GET_GANG(&dva[d]) ? "g" : "", 1949 BP_GET_COMPRESS(bp) != 0 ? "d" : ""); 1950 } 1951 (void) printf("\tLSIZE: %-16llx\t\tPSIZE: %llx\n", 1952 (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp)); 1953 (void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE: %s\n", 1954 BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG", 1955 dmu_ot[BP_GET_TYPE(bp)].ot_name); 1956 (void) printf("\tBIRTH: %-16llx LEVEL: %-2llu\tFILL: %llx\n", 1957 (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp), 1958 (u_longlong_t)bp->blk_fill); 1959 (void) printf("\tCKFUNC: %-16s\t\tCOMP: %s\n", 1960 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1961 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name); 1962 (void) printf("\tCKSUM: %llx:%llx:%llx:%llx\n", 1963 (u_longlong_t)bp->blk_cksum.zc_word[0], 1964 (u_longlong_t)bp->blk_cksum.zc_word[1], 1965 (u_longlong_t)bp->blk_cksum.zc_word[2], 1966 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1967 } 1968 1969 static void 1970 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 1971 { 1972 int i; 1973 1974 for (i = 0; i < nbps; i++) 1975 zdb_print_blkptr(&bp[i], flags); 1976 } 1977 1978 static void 1979 zdb_dump_gbh(void *buf, int flags) 1980 { 1981 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 1982 } 1983 1984 static void 1985 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 1986 { 1987 if (flags & ZDB_FLAG_BSWAP) 1988 byteswap_uint64_array(buf, size); 1989 (void) write(2, buf, size); 1990 } 1991 1992 static void 1993 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 1994 { 1995 uint64_t *d = (uint64_t *)buf; 1996 int nwords = size / sizeof (uint64_t); 1997 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 1998 int i, j; 1999 char *hdr, *c; 2000 2001 2002 if (do_bswap) 2003 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2004 else 2005 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2006 2007 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2008 2009 for (i = 0; i < nwords; i += 2) { 2010 (void) printf("%06llx: %016llx %016llx ", 2011 (u_longlong_t)(i * sizeof (uint64_t)), 2012 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2013 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2014 2015 c = (char *)&d[i]; 2016 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2017 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2018 (void) printf("\n"); 2019 } 2020 } 2021 2022 /* 2023 * There are two acceptable formats: 2024 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2025 * child[.child]* - For example: 0.1.1 2026 * 2027 * The second form can be used to specify arbitrary vdevs anywhere 2028 * in the heirarchy. For example, in a pool with a mirror of 2029 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2030 */ 2031 static vdev_t * 2032 zdb_vdev_lookup(vdev_t *vdev, char *path) 2033 { 2034 char *s, *p, *q; 2035 int i; 2036 2037 if (vdev == NULL) 2038 return (NULL); 2039 2040 /* First, assume the x.x.x.x format */ 2041 i = (int)strtoul(path, &s, 10); 2042 if (s == path || (s && *s != '.' && *s != '\0')) 2043 goto name; 2044 if (i < 0 || i >= vdev->vdev_children) 2045 return (NULL); 2046 2047 vdev = vdev->vdev_child[i]; 2048 if (*s == '\0') 2049 return (vdev); 2050 return (zdb_vdev_lookup(vdev, s+1)); 2051 2052 name: 2053 for (i = 0; i < vdev->vdev_children; i++) { 2054 vdev_t *vc = vdev->vdev_child[i]; 2055 2056 if (vc->vdev_path == NULL) { 2057 vc = zdb_vdev_lookup(vc, path); 2058 if (vc == NULL) 2059 continue; 2060 else 2061 return (vc); 2062 } 2063 2064 p = strrchr(vc->vdev_path, '/'); 2065 p = p ? p + 1 : vc->vdev_path; 2066 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2067 2068 if (strcmp(vc->vdev_path, path) == 0) 2069 return (vc); 2070 if (strcmp(p, path) == 0) 2071 return (vc); 2072 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2073 return (vc); 2074 } 2075 2076 return (NULL); 2077 } 2078 2079 /* 2080 * Read a block from a pool and print it out. The syntax of the 2081 * block descriptor is: 2082 * 2083 * pool:vdev_specifier:offset:size[:flags] 2084 * 2085 * pool - The name of the pool you wish to read from 2086 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2087 * offset - offset, in hex, in bytes 2088 * size - Amount of data to read, in hex, in bytes 2089 * flags - A string of characters specifying options 2090 * b: Decode a blkptr at given offset within block 2091 * *c: Calculate and display checksums 2092 * *d: Decompress data before dumping 2093 * e: Byteswap data before dumping 2094 * *g: Display data as a gang block header 2095 * *i: Display as an indirect block 2096 * p: Do I/O to physical offset 2097 * r: Dump raw data to stdout 2098 * 2099 * * = not yet implemented 2100 */ 2101 static void 2102 zdb_read_block(char *thing, spa_t **spap) 2103 { 2104 spa_t *spa = *spap; 2105 int flags = 0; 2106 uint64_t offset = 0, size = 0, blkptr_offset = 0; 2107 zio_t *zio; 2108 vdev_t *vd; 2109 void *buf; 2110 char *s, *p, *dup, *spa_name, *vdev, *flagstr; 2111 int i, error, zio_flags; 2112 2113 dup = strdup(thing); 2114 s = strtok(dup, ":"); 2115 spa_name = s ? s : ""; 2116 s = strtok(NULL, ":"); 2117 vdev = s ? s : ""; 2118 s = strtok(NULL, ":"); 2119 offset = strtoull(s ? s : "", NULL, 16); 2120 s = strtok(NULL, ":"); 2121 size = strtoull(s ? s : "", NULL, 16); 2122 s = strtok(NULL, ":"); 2123 flagstr = s ? s : ""; 2124 2125 s = NULL; 2126 if (size == 0) 2127 s = "size must not be zero"; 2128 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2129 s = "size must be a multiple of sector size"; 2130 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2131 s = "offset must be a multiple of sector size"; 2132 if (s) { 2133 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2134 free(dup); 2135 return; 2136 } 2137 2138 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2139 for (i = 0; flagstr[i]; i++) { 2140 int bit = flagbits[(uchar_t)flagstr[i]]; 2141 2142 if (bit == 0) { 2143 (void) printf("***Invalid flag: %c\n", 2144 flagstr[i]); 2145 continue; 2146 } 2147 flags |= bit; 2148 2149 /* If it's not something with an argument, keep going */ 2150 if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS | 2151 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2152 continue; 2153 2154 p = &flagstr[i + 1]; 2155 if (bit == ZDB_FLAG_PRINT_BLKPTR) 2156 blkptr_offset = strtoull(p, &p, 16); 2157 if (*p != ':' && *p != '\0') { 2158 (void) printf("***Invalid flag arg: '%s'\n", s); 2159 free(dup); 2160 return; 2161 } 2162 } 2163 } 2164 2165 if (spa == NULL || spa->spa_name == NULL || 2166 strcmp(spa->spa_name, spa_name)) { 2167 if (spa && spa->spa_name) 2168 spa_close(spa, (void *)zdb_read_block); 2169 error = spa_open(spa_name, spap, (void *)zdb_read_block); 2170 if (error) 2171 fatal("Failed to open pool '%s': %s", 2172 spa_name, strerror(error)); 2173 spa = *spap; 2174 } 2175 2176 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 2177 if (vd == NULL) { 2178 (void) printf("***Invalid vdev: %s\n", vdev); 2179 free(dup); 2180 return; 2181 } else { 2182 if (vd->vdev_path) 2183 (void) printf("Found vdev: %s\n", vd->vdev_path); 2184 else 2185 (void) printf("Found vdev type: %s\n", 2186 vd->vdev_ops->vdev_op_type); 2187 } 2188 2189 buf = umem_alloc(size, UMEM_NOFAIL); 2190 2191 zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 2192 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | ZIO_FLAG_NOBOOKMARK; 2193 2194 if (flags & ZDB_FLAG_PHYS) 2195 zio_flags |= ZIO_FLAG_PHYSICAL; 2196 2197 zio = zio_root(spa, NULL, NULL, 0); 2198 /* XXX todo - cons up a BP so RAID-Z will be happy */ 2199 zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size, 2200 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL)); 2201 error = zio_wait(zio); 2202 2203 if (error) { 2204 (void) printf("Read of %s failed, error: %d\n", thing, error); 2205 goto out; 2206 } 2207 2208 if (flags & ZDB_FLAG_PRINT_BLKPTR) 2209 zdb_print_blkptr((blkptr_t *)(void *) 2210 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 2211 else if (flags & ZDB_FLAG_RAW) 2212 zdb_dump_block_raw(buf, size, flags); 2213 else if (flags & ZDB_FLAG_INDIRECT) 2214 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 2215 flags); 2216 else if (flags & ZDB_FLAG_GBH) 2217 zdb_dump_gbh(buf, flags); 2218 else 2219 zdb_dump_block(thing, buf, size, flags); 2220 2221 out: 2222 umem_free(buf, size); 2223 free(dup); 2224 } 2225 2226 static boolean_t 2227 nvlist_string_match(nvlist_t *config, char *name, char *tgt) 2228 { 2229 char *s; 2230 2231 if (nvlist_lookup_string(config, name, &s) != 0) 2232 return (B_FALSE); 2233 2234 return (strcmp(s, tgt) == 0); 2235 } 2236 2237 static boolean_t 2238 nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt) 2239 { 2240 uint64_t val; 2241 2242 if (nvlist_lookup_uint64(config, name, &val) != 0) 2243 return (B_FALSE); 2244 2245 return (val == tgt); 2246 } 2247 2248 static boolean_t 2249 vdev_child_guid_match(nvlist_t *vdev, uint64_t guid) 2250 { 2251 nvlist_t **child; 2252 uint_t c, children; 2253 2254 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2255 &child, &children) == 0); 2256 for (c = 0; c < children; ++c) 2257 if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid)) 2258 return (B_TRUE); 2259 return (B_FALSE); 2260 } 2261 2262 static boolean_t 2263 vdev_child_string_match(nvlist_t *vdev, char *tgt) 2264 { 2265 nvlist_t **child; 2266 uint_t c, children; 2267 2268 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2269 &child, &children) == 0); 2270 for (c = 0; c < children; ++c) { 2271 if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) || 2272 nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt)) 2273 return (B_TRUE); 2274 } 2275 return (B_FALSE); 2276 } 2277 2278 static boolean_t 2279 vdev_guid_match(nvlist_t *config, uint64_t guid) 2280 { 2281 nvlist_t *nvroot; 2282 2283 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2284 &nvroot) == 0); 2285 2286 return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) || 2287 vdev_child_guid_match(nvroot, guid)); 2288 } 2289 2290 static boolean_t 2291 vdev_string_match(nvlist_t *config, char *tgt) 2292 { 2293 nvlist_t *nvroot; 2294 2295 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2296 &nvroot) == 0); 2297 2298 return (vdev_child_string_match(nvroot, tgt)); 2299 } 2300 2301 static boolean_t 2302 pool_match(nvlist_t *config, char *tgt) 2303 { 2304 uint64_t guid = strtoull(tgt, NULL, 0); 2305 2306 if (guid != 0) { 2307 return ( 2308 nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) || 2309 vdev_guid_match(config, guid)); 2310 } else { 2311 return ( 2312 nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) || 2313 vdev_string_match(config, tgt)); 2314 } 2315 } 2316 2317 static int 2318 find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir, 2319 char *cachefile) 2320 { 2321 nvlist_t *pools; 2322 int error = ENOENT; 2323 nvlist_t *match = NULL; 2324 2325 if (vdev_dir != NULL) 2326 pools = zpool_find_import(g_zfs, 1, &vdev_dir, B_TRUE); 2327 else if (cachefile != NULL) 2328 pools = zpool_find_import_cached(g_zfs, cachefile, B_TRUE); 2329 else 2330 pools = zpool_find_import(g_zfs, 0, NULL, B_TRUE); 2331 2332 if (pools != NULL) { 2333 nvpair_t *elem = NULL; 2334 2335 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 2336 verify(nvpair_value_nvlist(elem, configp) == 0); 2337 if (pool_match(*configp, pool_id)) { 2338 if (match != NULL) { 2339 (void) fatal( 2340 "More than one matching pool - " 2341 "specify guid/devid/device path."); 2342 } else { 2343 match = *configp; 2344 error = 0; 2345 } 2346 } 2347 } 2348 } 2349 2350 *configp = error ? NULL : match; 2351 2352 return (error); 2353 } 2354 2355 int 2356 main(int argc, char **argv) 2357 { 2358 int i, c; 2359 struct rlimit rl = { 1024, 1024 }; 2360 spa_t *spa; 2361 objset_t *os = NULL; 2362 char *endstr; 2363 int dump_all = 1; 2364 int verbose = 0; 2365 int error; 2366 int flag, set; 2367 int exported = 0; 2368 char *vdev_dir = NULL; 2369 char *cachefile = NULL; 2370 2371 (void) setrlimit(RLIMIT_NOFILE, &rl); 2372 (void) enable_extended_FILE_stdio(-1, -1); 2373 2374 dprintf_setup(&argc, argv); 2375 2376 while ((c = getopt(argc, argv, "udibcsvCLO:B:S:U:lRep:")) != -1) { 2377 switch (c) { 2378 case 'u': 2379 case 'd': 2380 case 'i': 2381 case 'b': 2382 case 'c': 2383 case 's': 2384 case 'C': 2385 case 'l': 2386 case 'R': 2387 dump_opt[c]++; 2388 dump_all = 0; 2389 break; 2390 case 'L': 2391 dump_opt[c]++; 2392 break; 2393 case 'O': 2394 endstr = optarg; 2395 if (endstr[0] == '!') { 2396 endstr++; 2397 set = 0; 2398 } else { 2399 set = 1; 2400 } 2401 if (strcmp(endstr, "post") == 0) { 2402 flag = ADVANCE_PRE; 2403 set = !set; 2404 } else if (strcmp(endstr, "pre") == 0) { 2405 flag = ADVANCE_PRE; 2406 } else if (strcmp(endstr, "prune") == 0) { 2407 flag = ADVANCE_PRUNE; 2408 } else if (strcmp(endstr, "data") == 0) { 2409 flag = ADVANCE_DATA; 2410 } else if (strcmp(endstr, "holes") == 0) { 2411 flag = ADVANCE_HOLES; 2412 } else { 2413 usage(); 2414 } 2415 if (set) 2416 zdb_advance |= flag; 2417 else 2418 zdb_advance &= ~flag; 2419 break; 2420 case 'B': 2421 endstr = optarg - 1; 2422 zdb_noread.zb_objset = strtoull(endstr + 1, &endstr, 0); 2423 zdb_noread.zb_object = strtoull(endstr + 1, &endstr, 0); 2424 zdb_noread.zb_level = strtol(endstr + 1, &endstr, 0); 2425 zdb_noread.zb_blkid = strtoull(endstr + 1, &endstr, 16); 2426 (void) printf("simulating bad block " 2427 "<%llu, %llu, %lld, %llx>\n", 2428 (u_longlong_t)zdb_noread.zb_objset, 2429 (u_longlong_t)zdb_noread.zb_object, 2430 (u_longlong_t)zdb_noread.zb_level, 2431 (u_longlong_t)zdb_noread.zb_blkid); 2432 break; 2433 case 'v': 2434 verbose++; 2435 break; 2436 case 'U': 2437 cachefile = optarg; 2438 break; 2439 case 'e': 2440 exported = 1; 2441 break; 2442 case 'p': 2443 vdev_dir = optarg; 2444 break; 2445 case 'S': 2446 dump_opt[c]++; 2447 dump_all = 0; 2448 zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0); 2449 if (!zdb_sig_user_data && strncmp(optarg, "all:", 4)) 2450 usage(); 2451 endstr = strchr(optarg, ':') + 1; 2452 if (strcmp(endstr, "fletcher2") == 0) 2453 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2454 else if (strcmp(endstr, "fletcher4") == 0) 2455 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4; 2456 else if (strcmp(endstr, "sha256") == 0) 2457 zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; 2458 else if (strcmp(endstr, "all") == 0) 2459 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2460 else 2461 usage(); 2462 break; 2463 default: 2464 usage(); 2465 break; 2466 } 2467 } 2468 2469 if (vdev_dir != NULL && exported == 0) 2470 (void) fatal("-p option requires use of -e\n"); 2471 2472 kernel_init(FREAD); 2473 g_zfs = libzfs_init(); 2474 ASSERT(g_zfs != NULL); 2475 2476 /* 2477 * Disable vdev caching. If we don't do this, live pool traversal 2478 * won't make progress because it will never see disk updates. 2479 */ 2480 zfs_vdev_cache_size = 0; 2481 2482 for (c = 0; c < 256; c++) { 2483 if (dump_all && c != 'L' && c != 'l' && c != 'R') 2484 dump_opt[c] = 1; 2485 if (dump_opt[c]) 2486 dump_opt[c] += verbose; 2487 } 2488 2489 argc -= optind; 2490 argv += optind; 2491 2492 if (argc < 1) { 2493 if (dump_opt['C']) { 2494 if (cachefile != NULL) 2495 dump_cachefile(cachefile); 2496 else 2497 dump_config(NULL); 2498 return (0); 2499 } 2500 usage(); 2501 } 2502 2503 if (dump_opt['l']) { 2504 dump_label(argv[0]); 2505 return (0); 2506 } 2507 2508 if (dump_opt['R']) { 2509 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 2510 flagbits['c'] = ZDB_FLAG_CHECKSUM; 2511 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 2512 flagbits['e'] = ZDB_FLAG_BSWAP; 2513 flagbits['g'] = ZDB_FLAG_GBH; 2514 flagbits['i'] = ZDB_FLAG_INDIRECT; 2515 flagbits['p'] = ZDB_FLAG_PHYS; 2516 flagbits['r'] = ZDB_FLAG_RAW; 2517 2518 spa = NULL; 2519 while (argv[0]) { 2520 zdb_read_block(argv[0], &spa); 2521 argv++; 2522 argc--; 2523 } 2524 if (spa) 2525 spa_close(spa, (void *)zdb_read_block); 2526 return (0); 2527 } 2528 2529 if (dump_opt['C']) 2530 dump_config(argv[0]); 2531 2532 error = 0; 2533 if (exported || cachefile != NULL) { 2534 /* 2535 * Check to see if the name refers to an exported zpool 2536 */ 2537 char *slash; 2538 nvlist_t *exported_conf = NULL; 2539 2540 if ((slash = strchr(argv[0], '/')) != NULL) 2541 *slash = '\0'; 2542 2543 error = find_exported_zpool(argv[0], &exported_conf, vdev_dir, 2544 cachefile); 2545 if (error == 0) { 2546 nvlist_t *nvl = NULL; 2547 2548 if (vdev_dir != NULL) { 2549 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 2550 error = ENOMEM; 2551 else if (nvlist_add_string(nvl, 2552 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), 2553 vdev_dir) != 0) 2554 error = ENOMEM; 2555 } 2556 2557 if (error == 0) 2558 error = spa_import_faulted(argv[0], 2559 exported_conf, nvl); 2560 2561 nvlist_free(nvl); 2562 } 2563 2564 if (slash != NULL) 2565 *slash = '/'; 2566 } 2567 2568 if (error == 0) { 2569 if (strchr(argv[0], '/') != NULL) { 2570 error = dmu_objset_open(argv[0], DMU_OST_ANY, 2571 DS_MODE_USER | DS_MODE_READONLY, &os); 2572 } else { 2573 error = spa_open(argv[0], &spa, FTAG); 2574 } 2575 } 2576 2577 if (error) 2578 fatal("can't open %s: %s", argv[0], strerror(error)); 2579 2580 argv++; 2581 if (--argc > 0) { 2582 zopt_objects = argc; 2583 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 2584 for (i = 0; i < zopt_objects; i++) { 2585 errno = 0; 2586 zopt_object[i] = strtoull(argv[i], NULL, 0); 2587 if (zopt_object[i] == 0 && errno != 0) 2588 fatal("bad object number %s: %s", 2589 argv[i], strerror(errno)); 2590 } 2591 } 2592 2593 if (os != NULL) { 2594 dump_dir(os); 2595 dmu_objset_close(os); 2596 } else { 2597 dump_zpool(spa); 2598 spa_close(spa, FTAG); 2599 } 2600 2601 fuid_table_destroy(); 2602 2603 libzfs_fini(g_zfs); 2604 kernel_fini(); 2605 2606 return (0); 2607 } 2608