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 #include <stdio.h> 27 #include <stdio_ext.h> 28 #include <stdlib.h> 29 #include <ctype.h> 30 #include <sys/zfs_context.h> 31 #include <sys/spa.h> 32 #include <sys/spa_impl.h> 33 #include <sys/dmu.h> 34 #include <sys/zap.h> 35 #include <sys/fs/zfs.h> 36 #include <sys/zfs_znode.h> 37 #include <sys/vdev.h> 38 #include <sys/vdev_impl.h> 39 #include <sys/metaslab_impl.h> 40 #include <sys/dmu_objset.h> 41 #include <sys/dsl_dir.h> 42 #include <sys/dsl_dataset.h> 43 #include <sys/dsl_pool.h> 44 #include <sys/dbuf.h> 45 #include <sys/zil.h> 46 #include <sys/zil_impl.h> 47 #include <sys/stat.h> 48 #include <sys/resource.h> 49 #include <sys/dmu_traverse.h> 50 #include <sys/zio_checksum.h> 51 #include <sys/zio_compress.h> 52 #include <sys/zfs_fuid.h> 53 #undef ZFS_MAXNAMELEN 54 #undef verify 55 #include <libzfs.h> 56 57 const char cmdname[] = "zdb"; 58 uint8_t dump_opt[256]; 59 60 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 61 62 extern void dump_intent_log(zilog_t *); 63 uint64_t *zopt_object = NULL; 64 int zopt_objects = 0; 65 int zdb_advance = ADVANCE_PRE; 66 zbookmark_t zdb_noread = { 0, 0, ZB_NO_LEVEL, 0 }; 67 libzfs_handle_t *g_zfs; 68 boolean_t zdb_sig_user_data = B_TRUE; 69 int zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; 70 71 /* 72 * These libumem hooks provide a reasonable set of defaults for the allocator's 73 * debugging facilities. 74 */ 75 const char * 76 _umem_debug_init() 77 { 78 return ("default,verbose"); /* $UMEM_DEBUG setting */ 79 } 80 81 const char * 82 _umem_logging_init(void) 83 { 84 return ("fail,contents"); /* $UMEM_LOGGING setting */ 85 } 86 87 static void 88 usage(void) 89 { 90 (void) fprintf(stderr, 91 "Usage: %s [-udibcsvL] [-U cachefile_path] [-O order] " 92 "[-B os:obj:level:blkid] [-S user:cksumalg] " 93 "dataset [object...]\n" 94 " %s -C [pool]\n" 95 " %s -l dev\n" 96 " %s -R pool:vdev:offset:size:flags\n" 97 " %s [-p path_to_vdev_dir]\n" 98 " %s -e pool | GUID | devid ...\n", 99 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 100 101 (void) fprintf(stderr, " -u uberblock\n"); 102 (void) fprintf(stderr, " -d datasets\n"); 103 (void) fprintf(stderr, " -C cached pool configuration\n"); 104 (void) fprintf(stderr, " -i intent logs\n"); 105 (void) fprintf(stderr, " -b block statistics\n"); 106 (void) fprintf(stderr, " -c checksum all data blocks\n"); 107 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 108 (void) fprintf(stderr, " -S <user|all>:<cksum_alg|all> -- " 109 "dump blkptr signatures\n"); 110 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 111 (void) fprintf(stderr, " -l dump label contents\n"); 112 (void) fprintf(stderr, " -L live pool (allows some errors)\n"); 113 (void) fprintf(stderr, " -O [!]<pre|post|prune|data|holes> " 114 "visitation order\n"); 115 (void) fprintf(stderr, " -U cachefile_path -- use alternate " 116 "cachefile\n"); 117 (void) fprintf(stderr, " -B objset:object:level:blkid -- " 118 "simulate bad block\n"); 119 (void) fprintf(stderr, " -R read and display block from a " 120 "device\n"); 121 (void) fprintf(stderr, " -e Pool is exported/destroyed/" 122 "has altroot\n"); 123 (void) fprintf(stderr, " -p <Path to vdev dir> (use with -e)\n"); 124 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 125 "to make only that option verbose\n"); 126 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 127 exit(1); 128 } 129 130 static void 131 fatal(const char *fmt, ...) 132 { 133 va_list ap; 134 135 va_start(ap, fmt); 136 (void) fprintf(stderr, "%s: ", cmdname); 137 (void) vfprintf(stderr, fmt, ap); 138 va_end(ap); 139 (void) fprintf(stderr, "\n"); 140 141 exit(1); 142 } 143 144 static void 145 dump_nvlist(nvlist_t *list, int indent) 146 { 147 nvpair_t *elem = NULL; 148 149 while ((elem = nvlist_next_nvpair(list, elem)) != NULL) { 150 switch (nvpair_type(elem)) { 151 case DATA_TYPE_STRING: 152 { 153 char *value; 154 155 VERIFY(nvpair_value_string(elem, &value) == 0); 156 (void) printf("%*s%s='%s'\n", indent, "", 157 nvpair_name(elem), value); 158 } 159 break; 160 161 case DATA_TYPE_UINT64: 162 { 163 uint64_t value; 164 165 VERIFY(nvpair_value_uint64(elem, &value) == 0); 166 (void) printf("%*s%s=%llu\n", indent, "", 167 nvpair_name(elem), (u_longlong_t)value); 168 } 169 break; 170 171 case DATA_TYPE_NVLIST: 172 { 173 nvlist_t *value; 174 175 VERIFY(nvpair_value_nvlist(elem, &value) == 0); 176 (void) printf("%*s%s\n", indent, "", 177 nvpair_name(elem)); 178 dump_nvlist(value, indent + 4); 179 } 180 break; 181 182 case DATA_TYPE_NVLIST_ARRAY: 183 { 184 nvlist_t **value; 185 uint_t c, count; 186 187 VERIFY(nvpair_value_nvlist_array(elem, &value, 188 &count) == 0); 189 190 for (c = 0; c < count; c++) { 191 (void) printf("%*s%s[%u]\n", indent, "", 192 nvpair_name(elem), c); 193 dump_nvlist(value[c], indent + 8); 194 } 195 } 196 break; 197 198 default: 199 200 (void) printf("bad config type %d for %s\n", 201 nvpair_type(elem), nvpair_name(elem)); 202 } 203 } 204 } 205 206 /* ARGSUSED */ 207 static void 208 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 209 { 210 nvlist_t *nv; 211 size_t nvsize = *(uint64_t *)data; 212 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 213 214 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed)); 215 216 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 217 218 umem_free(packed, nvsize); 219 220 dump_nvlist(nv, 8); 221 222 nvlist_free(nv); 223 } 224 225 const char dump_zap_stars[] = "****************************************"; 226 const int dump_zap_width = sizeof (dump_zap_stars) - 1; 227 228 static void 229 dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE]) 230 { 231 int i; 232 int minidx = ZAP_HISTOGRAM_SIZE - 1; 233 int maxidx = 0; 234 uint64_t max = 0; 235 236 for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) { 237 if (histo[i] > max) 238 max = histo[i]; 239 if (histo[i] > 0 && i > maxidx) 240 maxidx = i; 241 if (histo[i] > 0 && i < minidx) 242 minidx = i; 243 } 244 245 if (max < dump_zap_width) 246 max = dump_zap_width; 247 248 for (i = minidx; i <= maxidx; i++) 249 (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i], 250 &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]); 251 } 252 253 static void 254 dump_zap_stats(objset_t *os, uint64_t object) 255 { 256 int error; 257 zap_stats_t zs; 258 259 error = zap_get_stats(os, object, &zs); 260 if (error) 261 return; 262 263 if (zs.zs_ptrtbl_len == 0) { 264 ASSERT(zs.zs_num_blocks == 1); 265 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 266 (u_longlong_t)zs.zs_blocksize, 267 (u_longlong_t)zs.zs_num_entries); 268 return; 269 } 270 271 (void) printf("\tFat ZAP stats:\n"); 272 273 (void) printf("\t\tPointer table:\n"); 274 (void) printf("\t\t\t%llu elements\n", 275 (u_longlong_t)zs.zs_ptrtbl_len); 276 (void) printf("\t\t\tzt_blk: %llu\n", 277 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 278 (void) printf("\t\t\tzt_numblks: %llu\n", 279 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 280 (void) printf("\t\t\tzt_shift: %llu\n", 281 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 282 (void) printf("\t\t\tzt_blks_copied: %llu\n", 283 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 284 (void) printf("\t\t\tzt_nextblk: %llu\n", 285 (u_longlong_t)zs.zs_ptrtbl_nextblk); 286 287 (void) printf("\t\tZAP entries: %llu\n", 288 (u_longlong_t)zs.zs_num_entries); 289 (void) printf("\t\tLeaf blocks: %llu\n", 290 (u_longlong_t)zs.zs_num_leafs); 291 (void) printf("\t\tTotal blocks: %llu\n", 292 (u_longlong_t)zs.zs_num_blocks); 293 (void) printf("\t\tzap_block_type: 0x%llx\n", 294 (u_longlong_t)zs.zs_block_type); 295 (void) printf("\t\tzap_magic: 0x%llx\n", 296 (u_longlong_t)zs.zs_magic); 297 (void) printf("\t\tzap_salt: 0x%llx\n", 298 (u_longlong_t)zs.zs_salt); 299 300 (void) printf("\t\tLeafs with 2^n pointers:\n"); 301 dump_zap_histogram(zs.zs_leafs_with_2n_pointers); 302 303 (void) printf("\t\tBlocks with n*5 entries:\n"); 304 dump_zap_histogram(zs.zs_blocks_with_n5_entries); 305 306 (void) printf("\t\tBlocks n/10 full:\n"); 307 dump_zap_histogram(zs.zs_blocks_n_tenths_full); 308 309 (void) printf("\t\tEntries with n chunks:\n"); 310 dump_zap_histogram(zs.zs_entries_using_n_chunks); 311 312 (void) printf("\t\tBuckets with n entries:\n"); 313 dump_zap_histogram(zs.zs_buckets_with_n_entries); 314 } 315 316 /*ARGSUSED*/ 317 static void 318 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 319 { 320 } 321 322 /*ARGSUSED*/ 323 void 324 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 325 { 326 } 327 328 /*ARGSUSED*/ 329 static void 330 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 331 { 332 } 333 334 /*ARGSUSED*/ 335 static void 336 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 337 { 338 zap_cursor_t zc; 339 zap_attribute_t attr; 340 void *prop; 341 int i; 342 343 dump_zap_stats(os, object); 344 (void) printf("\n"); 345 346 for (zap_cursor_init(&zc, os, object); 347 zap_cursor_retrieve(&zc, &attr) == 0; 348 zap_cursor_advance(&zc)) { 349 (void) printf("\t\t%s = ", attr.za_name); 350 if (attr.za_num_integers == 0) { 351 (void) printf("\n"); 352 continue; 353 } 354 prop = umem_zalloc(attr.za_num_integers * 355 attr.za_integer_length, UMEM_NOFAIL); 356 (void) zap_lookup(os, object, attr.za_name, 357 attr.za_integer_length, attr.za_num_integers, prop); 358 if (attr.za_integer_length == 1) { 359 (void) printf("%s", (char *)prop); 360 } else { 361 for (i = 0; i < attr.za_num_integers; i++) { 362 switch (attr.za_integer_length) { 363 case 2: 364 (void) printf("%u ", 365 ((uint16_t *)prop)[i]); 366 break; 367 case 4: 368 (void) printf("%u ", 369 ((uint32_t *)prop)[i]); 370 break; 371 case 8: 372 (void) printf("%lld ", 373 (u_longlong_t)((int64_t *)prop)[i]); 374 break; 375 } 376 } 377 } 378 (void) printf("\n"); 379 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 380 } 381 zap_cursor_fini(&zc); 382 } 383 384 /*ARGSUSED*/ 385 static void 386 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 387 { 388 zap_cursor_t zc; 389 zap_attribute_t attr; 390 const char *typenames[] = { 391 /* 0 */ "not specified", 392 /* 1 */ "FIFO", 393 /* 2 */ "Character Device", 394 /* 3 */ "3 (invalid)", 395 /* 4 */ "Directory", 396 /* 5 */ "5 (invalid)", 397 /* 6 */ "Block Device", 398 /* 7 */ "7 (invalid)", 399 /* 8 */ "Regular File", 400 /* 9 */ "9 (invalid)", 401 /* 10 */ "Symbolic Link", 402 /* 11 */ "11 (invalid)", 403 /* 12 */ "Socket", 404 /* 13 */ "Door", 405 /* 14 */ "Event Port", 406 /* 15 */ "15 (invalid)", 407 }; 408 409 dump_zap_stats(os, object); 410 (void) printf("\n"); 411 412 for (zap_cursor_init(&zc, os, object); 413 zap_cursor_retrieve(&zc, &attr) == 0; 414 zap_cursor_advance(&zc)) { 415 (void) printf("\t\t%s = %lld (type: %s)\n", 416 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 417 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 418 } 419 zap_cursor_fini(&zc); 420 } 421 422 static void 423 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm) 424 { 425 uint64_t alloc, offset, entry; 426 uint8_t mapshift = sm->sm_shift; 427 uint64_t mapstart = sm->sm_start; 428 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 429 "INVALID", "INVALID", "INVALID", "INVALID" }; 430 431 if (smo->smo_object == 0) 432 return; 433 434 /* 435 * Print out the freelist entries in both encoded and decoded form. 436 */ 437 alloc = 0; 438 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) { 439 VERIFY(0 == dmu_read(os, smo->smo_object, offset, 440 sizeof (entry), &entry)); 441 if (SM_DEBUG_DECODE(entry)) { 442 (void) printf("\t\t[%4llu] %s: txg %llu, pass %llu\n", 443 (u_longlong_t)(offset / sizeof (entry)), 444 ddata[SM_DEBUG_ACTION_DECODE(entry)], 445 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 446 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 447 } else { 448 (void) printf("\t\t[%4llu] %c range:" 449 " %08llx-%08llx size: %06llx\n", 450 (u_longlong_t)(offset / sizeof (entry)), 451 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 452 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 453 mapshift) + mapstart), 454 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 455 mapshift) + mapstart + (SM_RUN_DECODE(entry) << 456 mapshift)), 457 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 458 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 459 alloc += SM_RUN_DECODE(entry) << mapshift; 460 else 461 alloc -= SM_RUN_DECODE(entry) << mapshift; 462 } 463 } 464 if (alloc != smo->smo_alloc) { 465 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 466 "with space map summary (%llu)\n", 467 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc); 468 } 469 } 470 471 static void 472 dump_metaslab(metaslab_t *msp) 473 { 474 char freebuf[5]; 475 space_map_obj_t *smo = &msp->ms_smo; 476 vdev_t *vd = msp->ms_group->mg_vd; 477 spa_t *spa = vd->vdev_spa; 478 479 nicenum(msp->ms_map.sm_size - smo->smo_alloc, freebuf); 480 481 if (dump_opt['d'] <= 5) { 482 (void) printf("\t%10llx %10llu %5s\n", 483 (u_longlong_t)msp->ms_map.sm_start, 484 (u_longlong_t)smo->smo_object, 485 freebuf); 486 return; 487 } 488 489 (void) printf( 490 "\tvdev %llu offset %08llx spacemap %4llu free %5s\n", 491 (u_longlong_t)vd->vdev_id, (u_longlong_t)msp->ms_map.sm_start, 492 (u_longlong_t)smo->smo_object, freebuf); 493 494 ASSERT(msp->ms_map.sm_size == (1ULL << vd->vdev_ms_shift)); 495 496 dump_spacemap(spa->spa_meta_objset, smo, &msp->ms_map); 497 } 498 499 static void 500 dump_metaslabs(spa_t *spa) 501 { 502 vdev_t *rvd = spa->spa_root_vdev; 503 vdev_t *vd; 504 int c, m; 505 506 (void) printf("\nMetaslabs:\n"); 507 508 for (c = 0; c < rvd->vdev_children; c++) { 509 vd = rvd->vdev_child[c]; 510 511 (void) printf("\n vdev %llu = %s\n\n", 512 (u_longlong_t)vd->vdev_id, vdev_description(vd)); 513 514 if (dump_opt['d'] <= 5) { 515 (void) printf("\t%10s %10s %5s\n", 516 "offset", "spacemap", "free"); 517 (void) printf("\t%10s %10s %5s\n", 518 "------", "--------", "----"); 519 } 520 for (m = 0; m < vd->vdev_ms_count; m++) 521 dump_metaslab(vd->vdev_ms[m]); 522 (void) printf("\n"); 523 } 524 } 525 526 static void 527 dump_dtl(vdev_t *vd, int indent) 528 { 529 avl_tree_t *t = &vd->vdev_dtl_map.sm_root; 530 space_seg_t *ss; 531 vdev_t *pvd; 532 int c; 533 534 if (indent == 0) 535 (void) printf("\nDirty time logs:\n\n"); 536 537 (void) printf("\t%*s%s\n", indent, "", vdev_description(vd)); 538 539 for (ss = avl_first(t); ss; ss = AVL_NEXT(t, ss)) { 540 /* 541 * Everything in this DTL must appear in all parent DTL unions. 542 */ 543 for (pvd = vd; pvd; pvd = pvd->vdev_parent) 544 ASSERT(vdev_dtl_contains(&pvd->vdev_dtl_map, 545 ss->ss_start, ss->ss_end - ss->ss_start)); 546 (void) printf("\t%*soutage [%llu,%llu] length %llu\n", 547 indent, "", 548 (u_longlong_t)ss->ss_start, 549 (u_longlong_t)ss->ss_end - 1, 550 (u_longlong_t)(ss->ss_end - ss->ss_start)); 551 } 552 553 (void) printf("\n"); 554 555 if (dump_opt['d'] > 5 && vd->vdev_children == 0) { 556 dump_spacemap(vd->vdev_spa->spa_meta_objset, &vd->vdev_dtl, 557 &vd->vdev_dtl_map); 558 (void) printf("\n"); 559 } 560 561 for (c = 0; c < vd->vdev_children; c++) 562 dump_dtl(vd->vdev_child[c], indent + 4); 563 } 564 565 /*ARGSUSED*/ 566 static void 567 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 568 { 569 } 570 571 static uint64_t 572 blkid2offset(dnode_phys_t *dnp, int level, uint64_t blkid) 573 { 574 if (level < 0) 575 return (blkid); 576 577 return ((blkid << (level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 578 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 579 } 580 581 static void 582 sprintf_blkptr_compact(char *blkbuf, blkptr_t *bp, int alldvas) 583 { 584 dva_t *dva = bp->blk_dva; 585 int ndvas = alldvas ? BP_GET_NDVAS(bp) : 1; 586 int i; 587 588 blkbuf[0] = '\0'; 589 590 for (i = 0; i < ndvas; i++) 591 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", 592 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 593 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 594 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 595 596 (void) sprintf(blkbuf + strlen(blkbuf), "%llxL/%llxP F=%llu B=%llu", 597 (u_longlong_t)BP_GET_LSIZE(bp), 598 (u_longlong_t)BP_GET_PSIZE(bp), 599 (u_longlong_t)bp->blk_fill, 600 (u_longlong_t)bp->blk_birth); 601 } 602 603 /* ARGSUSED */ 604 static int 605 zdb_indirect_cb(traverse_blk_cache_t *bc, spa_t *spa, void *a) 606 { 607 zbookmark_t *zb = &bc->bc_bookmark; 608 blkptr_t *bp = &bc->bc_blkptr; 609 void *data = bc->bc_data; 610 dnode_phys_t *dnp = bc->bc_dnode; 611 char blkbuf[BP_SPRINTF_LEN + 80]; 612 int l; 613 614 if (bc->bc_errno) { 615 (void) sprintf(blkbuf, 616 "Error %d reading <%llu, %llu, %lld, %llu>: ", 617 bc->bc_errno, 618 (u_longlong_t)zb->zb_objset, 619 (u_longlong_t)zb->zb_object, 620 (u_longlong_t)zb->zb_level, 621 (u_longlong_t)zb->zb_blkid); 622 goto out; 623 } 624 625 if (zb->zb_level == -1) { 626 ASSERT3U(BP_GET_TYPE(bp), ==, DMU_OT_OBJSET); 627 ASSERT3U(BP_GET_LEVEL(bp), ==, 0); 628 } else { 629 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 630 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 631 } 632 633 if (zb->zb_level > 0) { 634 uint64_t fill = 0; 635 blkptr_t *bpx, *bpend; 636 637 for (bpx = data, bpend = bpx + BP_GET_LSIZE(bp) / sizeof (*bpx); 638 bpx < bpend; bpx++) { 639 if (bpx->blk_birth != 0) { 640 fill += bpx->blk_fill; 641 } else { 642 ASSERT(bpx->blk_fill == 0); 643 } 644 } 645 ASSERT3U(fill, ==, bp->blk_fill); 646 } 647 648 if (zb->zb_level == 0 && dnp->dn_type == DMU_OT_DNODE) { 649 uint64_t fill = 0; 650 dnode_phys_t *dnx, *dnend; 651 652 for (dnx = data, dnend = dnx + (BP_GET_LSIZE(bp)>>DNODE_SHIFT); 653 dnx < dnend; dnx++) { 654 if (dnx->dn_type != DMU_OT_NONE) 655 fill++; 656 } 657 ASSERT3U(fill, ==, bp->blk_fill); 658 } 659 660 (void) sprintf(blkbuf, "%16llx ", 661 (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid)); 662 663 ASSERT(zb->zb_level >= 0); 664 665 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 666 if (l == zb->zb_level) { 667 (void) sprintf(blkbuf + strlen(blkbuf), "L%llx", 668 (u_longlong_t)zb->zb_level); 669 } else { 670 (void) sprintf(blkbuf + strlen(blkbuf), " "); 671 } 672 } 673 674 out: 675 if (bp->blk_birth == 0) { 676 (void) sprintf(blkbuf + strlen(blkbuf), "<hole>"); 677 (void) printf("%s\n", blkbuf); 678 } else { 679 sprintf_blkptr_compact(blkbuf + strlen(blkbuf), bp, 680 dump_opt['d'] > 5 ? 1 : 0); 681 (void) printf("%s\n", blkbuf); 682 } 683 684 return (bc->bc_errno ? ERESTART : 0); 685 } 686 687 /*ARGSUSED*/ 688 static void 689 dump_indirect(objset_t *os, uint64_t object, void *data, size_t size) 690 { 691 traverse_handle_t *th; 692 uint64_t objset = dmu_objset_id(os); 693 int advance = zdb_advance; 694 695 (void) printf("Indirect blocks:\n"); 696 697 if (object == 0) 698 advance |= ADVANCE_DATA; 699 700 th = traverse_init(dmu_objset_spa(os), zdb_indirect_cb, NULL, advance, 701 ZIO_FLAG_CANFAIL); 702 th->th_noread = zdb_noread; 703 704 traverse_add_dnode(th, 0, -1ULL, objset, object); 705 706 while (traverse_more(th) == EAGAIN) 707 continue; 708 709 (void) printf("\n"); 710 711 traverse_fini(th); 712 } 713 714 /*ARGSUSED*/ 715 static void 716 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 717 { 718 dsl_dir_phys_t *dd = data; 719 time_t crtime; 720 char nice[6]; 721 722 if (dd == NULL) 723 return; 724 725 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 726 727 crtime = dd->dd_creation_time; 728 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 729 (void) printf("\t\thead_dataset_obj = %llu\n", 730 (u_longlong_t)dd->dd_head_dataset_obj); 731 (void) printf("\t\tparent_dir_obj = %llu\n", 732 (u_longlong_t)dd->dd_parent_obj); 733 (void) printf("\t\torigin_obj = %llu\n", 734 (u_longlong_t)dd->dd_origin_obj); 735 (void) printf("\t\tchild_dir_zapobj = %llu\n", 736 (u_longlong_t)dd->dd_child_dir_zapobj); 737 nicenum(dd->dd_used_bytes, nice); 738 (void) printf("\t\tused_bytes = %s\n", nice); 739 nicenum(dd->dd_compressed_bytes, nice); 740 (void) printf("\t\tcompressed_bytes = %s\n", nice); 741 nicenum(dd->dd_uncompressed_bytes, nice); 742 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 743 nicenum(dd->dd_quota, nice); 744 (void) printf("\t\tquota = %s\n", nice); 745 nicenum(dd->dd_reserved, nice); 746 (void) printf("\t\treserved = %s\n", nice); 747 (void) printf("\t\tprops_zapobj = %llu\n", 748 (u_longlong_t)dd->dd_props_zapobj); 749 (void) printf("\t\tdeleg_zapobj = %llu\n", 750 (u_longlong_t)dd->dd_deleg_zapobj); 751 (void) printf("\t\tflags = %llx\n", 752 (u_longlong_t)dd->dd_flags); 753 754 #define DO(which) \ 755 nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 756 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 757 DO(HEAD); 758 DO(SNAP); 759 DO(CHILD); 760 DO(CHILD_RSRV); 761 DO(REFRSRV); 762 #undef DO 763 } 764 765 /*ARGSUSED*/ 766 static void 767 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 768 { 769 dsl_dataset_phys_t *ds = data; 770 time_t crtime; 771 char used[6], compressed[6], uncompressed[6], unique[6]; 772 char blkbuf[BP_SPRINTF_LEN]; 773 774 if (ds == NULL) 775 return; 776 777 ASSERT(size == sizeof (*ds)); 778 crtime = ds->ds_creation_time; 779 nicenum(ds->ds_used_bytes, used); 780 nicenum(ds->ds_compressed_bytes, compressed); 781 nicenum(ds->ds_uncompressed_bytes, uncompressed); 782 nicenum(ds->ds_unique_bytes, unique); 783 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ds->ds_bp); 784 785 (void) printf("\t\tdir_obj = %llu\n", 786 (u_longlong_t)ds->ds_dir_obj); 787 (void) printf("\t\tprev_snap_obj = %llu\n", 788 (u_longlong_t)ds->ds_prev_snap_obj); 789 (void) printf("\t\tprev_snap_txg = %llu\n", 790 (u_longlong_t)ds->ds_prev_snap_txg); 791 (void) printf("\t\tnext_snap_obj = %llu\n", 792 (u_longlong_t)ds->ds_next_snap_obj); 793 (void) printf("\t\tsnapnames_zapobj = %llu\n", 794 (u_longlong_t)ds->ds_snapnames_zapobj); 795 (void) printf("\t\tnum_children = %llu\n", 796 (u_longlong_t)ds->ds_num_children); 797 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 798 (void) printf("\t\tcreation_txg = %llu\n", 799 (u_longlong_t)ds->ds_creation_txg); 800 (void) printf("\t\tdeadlist_obj = %llu\n", 801 (u_longlong_t)ds->ds_deadlist_obj); 802 (void) printf("\t\tused_bytes = %s\n", used); 803 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 804 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 805 (void) printf("\t\tunique = %s\n", unique); 806 (void) printf("\t\tfsid_guid = %llu\n", 807 (u_longlong_t)ds->ds_fsid_guid); 808 (void) printf("\t\tguid = %llu\n", 809 (u_longlong_t)ds->ds_guid); 810 (void) printf("\t\tflags = %llx\n", 811 (u_longlong_t)ds->ds_flags); 812 (void) printf("\t\tnext_clones_obj = %llu\n", 813 (u_longlong_t)ds->ds_next_clones_obj); 814 (void) printf("\t\tprops_obj = %llu\n", 815 (u_longlong_t)ds->ds_props_obj); 816 (void) printf("\t\tbp = %s\n", blkbuf); 817 } 818 819 static void 820 dump_bplist(objset_t *mos, uint64_t object, char *name) 821 { 822 bplist_t bpl = { 0 }; 823 blkptr_t blk, *bp = &blk; 824 uint64_t itor = 0; 825 char bytes[6]; 826 char comp[6]; 827 char uncomp[6]; 828 829 if (dump_opt['d'] < 3) 830 return; 831 832 mutex_init(&bpl.bpl_lock, NULL, MUTEX_DEFAULT, NULL); 833 VERIFY(0 == bplist_open(&bpl, mos, object)); 834 if (bplist_empty(&bpl)) { 835 bplist_close(&bpl); 836 mutex_destroy(&bpl.bpl_lock); 837 return; 838 } 839 840 nicenum(bpl.bpl_phys->bpl_bytes, bytes); 841 if (bpl.bpl_dbuf->db_size == sizeof (bplist_phys_t)) { 842 nicenum(bpl.bpl_phys->bpl_comp, comp); 843 nicenum(bpl.bpl_phys->bpl_uncomp, uncomp); 844 (void) printf("\n %s: %llu entries, %s (%s/%s comp)\n", 845 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, 846 bytes, comp, uncomp); 847 } else { 848 (void) printf("\n %s: %llu entries, %s\n", 849 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, bytes); 850 } 851 852 if (dump_opt['d'] < 5) { 853 bplist_close(&bpl); 854 mutex_destroy(&bpl.bpl_lock); 855 return; 856 } 857 858 (void) printf("\n"); 859 860 while (bplist_iterate(&bpl, &itor, bp) == 0) { 861 char blkbuf[BP_SPRINTF_LEN]; 862 863 ASSERT(bp->blk_birth != 0); 864 sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0); 865 (void) printf("\tItem %3llu: %s\n", 866 (u_longlong_t)itor - 1, blkbuf); 867 } 868 869 bplist_close(&bpl); 870 mutex_destroy(&bpl.bpl_lock); 871 } 872 873 static avl_tree_t idx_tree; 874 static avl_tree_t domain_tree; 875 static boolean_t fuid_table_loaded; 876 877 static void 878 fuid_table_destroy() 879 { 880 if (fuid_table_loaded) { 881 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 882 fuid_table_loaded = B_FALSE; 883 } 884 } 885 886 /* 887 * print uid or gid information. 888 * For normal POSIX id just the id is printed in decimal format. 889 * For CIFS files with FUID the fuid is printed in hex followed by 890 * the doman-rid string. 891 */ 892 static void 893 print_idstr(uint64_t id, const char *id_type) 894 { 895 if (FUID_INDEX(id)) { 896 char *domain; 897 898 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 899 (void) printf("\t%s %llx [%s-%d]\n", id_type, 900 (u_longlong_t)id, domain, (int)FUID_RID(id)); 901 } else { 902 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 903 } 904 905 } 906 907 static void 908 dump_uidgid(objset_t *os, znode_phys_t *zp) 909 { 910 uint32_t uid_idx, gid_idx; 911 912 uid_idx = FUID_INDEX(zp->zp_uid); 913 gid_idx = FUID_INDEX(zp->zp_gid); 914 915 /* Load domain table, if not already loaded */ 916 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 917 uint64_t fuid_obj; 918 919 /* first find the fuid object. It lives in the master node */ 920 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 921 8, 1, &fuid_obj) == 0); 922 (void) zfs_fuid_table_load(os, fuid_obj, 923 &idx_tree, &domain_tree); 924 fuid_table_loaded = B_TRUE; 925 } 926 927 print_idstr(zp->zp_uid, "uid"); 928 print_idstr(zp->zp_gid, "gid"); 929 } 930 931 /*ARGSUSED*/ 932 static void 933 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 934 { 935 znode_phys_t *zp = data; 936 time_t z_crtime, z_atime, z_mtime, z_ctime; 937 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 938 int error; 939 940 ASSERT(size >= sizeof (znode_phys_t)); 941 942 error = zfs_obj_to_path(os, object, path, sizeof (path)); 943 if (error != 0) { 944 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 945 (u_longlong_t)object); 946 } 947 948 if (dump_opt['d'] < 3) { 949 (void) printf("\t%s\n", path); 950 return; 951 } 952 953 z_crtime = (time_t)zp->zp_crtime[0]; 954 z_atime = (time_t)zp->zp_atime[0]; 955 z_mtime = (time_t)zp->zp_mtime[0]; 956 z_ctime = (time_t)zp->zp_ctime[0]; 957 958 (void) printf("\tpath %s\n", path); 959 dump_uidgid(os, zp); 960 (void) printf("\tatime %s", ctime(&z_atime)); 961 (void) printf("\tmtime %s", ctime(&z_mtime)); 962 (void) printf("\tctime %s", ctime(&z_ctime)); 963 (void) printf("\tcrtime %s", ctime(&z_crtime)); 964 (void) printf("\tgen %llu\n", (u_longlong_t)zp->zp_gen); 965 (void) printf("\tmode %llo\n", (u_longlong_t)zp->zp_mode); 966 (void) printf("\tsize %llu\n", (u_longlong_t)zp->zp_size); 967 (void) printf("\tparent %llu\n", (u_longlong_t)zp->zp_parent); 968 (void) printf("\tlinks %llu\n", (u_longlong_t)zp->zp_links); 969 (void) printf("\txattr %llu\n", (u_longlong_t)zp->zp_xattr); 970 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)zp->zp_rdev); 971 } 972 973 /*ARGSUSED*/ 974 static void 975 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 976 { 977 } 978 979 /*ARGSUSED*/ 980 static void 981 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 982 { 983 } 984 985 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES] = { 986 dump_none, /* unallocated */ 987 dump_zap, /* object directory */ 988 dump_uint64, /* object array */ 989 dump_none, /* packed nvlist */ 990 dump_packed_nvlist, /* packed nvlist size */ 991 dump_none, /* bplist */ 992 dump_none, /* bplist header */ 993 dump_none, /* SPA space map header */ 994 dump_none, /* SPA space map */ 995 dump_none, /* ZIL intent log */ 996 dump_dnode, /* DMU dnode */ 997 dump_dmu_objset, /* DMU objset */ 998 dump_dsl_dir, /* DSL directory */ 999 dump_zap, /* DSL directory child map */ 1000 dump_zap, /* DSL dataset snap map */ 1001 dump_zap, /* DSL props */ 1002 dump_dsl_dataset, /* DSL dataset */ 1003 dump_znode, /* ZFS znode */ 1004 dump_acl, /* ZFS V0 ACL */ 1005 dump_uint8, /* ZFS plain file */ 1006 dump_zpldir, /* ZFS directory */ 1007 dump_zap, /* ZFS master node */ 1008 dump_zap, /* ZFS delete queue */ 1009 dump_uint8, /* zvol object */ 1010 dump_zap, /* zvol prop */ 1011 dump_uint8, /* other uint8[] */ 1012 dump_uint64, /* other uint64[] */ 1013 dump_zap, /* other ZAP */ 1014 dump_zap, /* persistent error log */ 1015 dump_uint8, /* SPA history */ 1016 dump_uint64, /* SPA history offsets */ 1017 dump_zap, /* Pool properties */ 1018 dump_zap, /* DSL permissions */ 1019 dump_acl, /* ZFS ACL */ 1020 dump_uint8, /* ZFS SYSACL */ 1021 dump_none, /* FUID nvlist */ 1022 dump_packed_nvlist, /* FUID nvlist size */ 1023 dump_zap, /* DSL dataset next clones */ 1024 dump_zap, /* DSL scrub queue */ 1025 }; 1026 1027 static void 1028 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1029 { 1030 dmu_buf_t *db = NULL; 1031 dmu_object_info_t doi; 1032 dnode_t *dn; 1033 void *bonus = NULL; 1034 size_t bsize = 0; 1035 char iblk[6], dblk[6], lsize[6], asize[6], bonus_size[6], segsize[6]; 1036 char aux[50]; 1037 int error; 1038 1039 if (*print_header) { 1040 (void) printf("\n Object lvl iblk dblk lsize" 1041 " asize type\n"); 1042 *print_header = 0; 1043 } 1044 1045 if (object == 0) { 1046 dn = os->os->os_meta_dnode; 1047 } else { 1048 error = dmu_bonus_hold(os, object, FTAG, &db); 1049 if (error) 1050 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1051 object, error); 1052 bonus = db->db_data; 1053 bsize = db->db_size; 1054 dn = ((dmu_buf_impl_t *)db)->db_dnode; 1055 } 1056 dmu_object_info_from_dnode(dn, &doi); 1057 1058 nicenum(doi.doi_metadata_block_size, iblk); 1059 nicenum(doi.doi_data_block_size, dblk); 1060 nicenum(doi.doi_data_block_size * (doi.doi_max_block_offset + 1), 1061 lsize); 1062 nicenum(doi.doi_physical_blks << 9, asize); 1063 nicenum(doi.doi_bonus_size, bonus_size); 1064 1065 aux[0] = '\0'; 1066 1067 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1068 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1069 zio_checksum_table[doi.doi_checksum].ci_name); 1070 } 1071 1072 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1073 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1074 zio_compress_table[doi.doi_compress].ci_name); 1075 } 1076 1077 (void) printf("%10lld %3u %5s %5s %5s %5s %s%s\n", 1078 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, lsize, 1079 asize, dmu_ot[doi.doi_type].ot_name, aux); 1080 1081 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1082 (void) printf("%10s %3s %5s %5s %5s %5s %s\n", 1083 "", "", "", "", bonus_size, "bonus", 1084 dmu_ot[doi.doi_bonus_type].ot_name); 1085 } 1086 1087 if (verbosity >= 4) { 1088 object_viewer[doi.doi_bonus_type](os, object, bonus, bsize); 1089 object_viewer[doi.doi_type](os, object, NULL, 0); 1090 *print_header = 1; 1091 } 1092 1093 if (verbosity >= 5) 1094 dump_indirect(os, object, NULL, 0); 1095 1096 if (verbosity >= 5) { 1097 /* 1098 * Report the list of segments that comprise the object. 1099 */ 1100 uint64_t start = 0; 1101 uint64_t end; 1102 uint64_t blkfill = 1; 1103 int minlvl = 1; 1104 1105 if (dn->dn_type == DMU_OT_DNODE) { 1106 minlvl = 0; 1107 blkfill = DNODES_PER_BLOCK; 1108 } 1109 1110 for (;;) { 1111 error = dnode_next_offset(dn, 1112 0, &start, minlvl, blkfill, 0); 1113 if (error) 1114 break; 1115 end = start; 1116 error = dnode_next_offset(dn, 1117 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1118 nicenum(end - start, segsize); 1119 (void) printf("\t\tsegment [%016llx, %016llx)" 1120 " size %5s\n", (u_longlong_t)start, 1121 (u_longlong_t)end, segsize); 1122 if (error) 1123 break; 1124 start = end; 1125 } 1126 } 1127 1128 if (db != NULL) 1129 dmu_buf_rele(db, FTAG); 1130 } 1131 1132 static char *objset_types[DMU_OST_NUMTYPES] = { 1133 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1134 1135 static void 1136 dump_dir(objset_t *os) 1137 { 1138 dmu_objset_stats_t dds; 1139 uint64_t object, object_count; 1140 uint64_t refdbytes, usedobjs, scratch; 1141 char numbuf[8]; 1142 char blkbuf[BP_SPRINTF_LEN]; 1143 char osname[MAXNAMELEN]; 1144 char *type = "UNKNOWN"; 1145 int verbosity = dump_opt['d']; 1146 int print_header = 1; 1147 int i, error; 1148 1149 dmu_objset_fast_stat(os, &dds); 1150 1151 if (dds.dds_type < DMU_OST_NUMTYPES) 1152 type = objset_types[dds.dds_type]; 1153 1154 if (dds.dds_type == DMU_OST_META) { 1155 dds.dds_creation_txg = TXG_INITIAL; 1156 usedobjs = os->os->os_rootbp->blk_fill; 1157 refdbytes = os->os->os_spa->spa_dsl_pool-> 1158 dp_mos_dir->dd_phys->dd_used_bytes; 1159 } else { 1160 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1161 } 1162 1163 ASSERT3U(usedobjs, ==, os->os->os_rootbp->blk_fill); 1164 1165 nicenum(refdbytes, numbuf); 1166 1167 if (verbosity >= 4) { 1168 (void) strcpy(blkbuf, ", rootbp "); 1169 sprintf_blkptr(blkbuf + strlen(blkbuf), 1170 BP_SPRINTF_LEN - strlen(blkbuf), os->os->os_rootbp); 1171 } else { 1172 blkbuf[0] = '\0'; 1173 } 1174 1175 dmu_objset_name(os, osname); 1176 1177 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1178 "%s, %llu objects%s\n", 1179 osname, type, (u_longlong_t)dmu_objset_id(os), 1180 (u_longlong_t)dds.dds_creation_txg, 1181 numbuf, (u_longlong_t)usedobjs, blkbuf); 1182 1183 dump_intent_log(dmu_objset_zil(os)); 1184 1185 if (dmu_objset_ds(os) != NULL) 1186 dump_bplist(dmu_objset_pool(os)->dp_meta_objset, 1187 dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist"); 1188 1189 if (verbosity < 2) 1190 return; 1191 1192 if (os->os->os_rootbp->blk_birth == 0) 1193 return; 1194 1195 if (zopt_objects != 0) { 1196 for (i = 0; i < zopt_objects; i++) 1197 dump_object(os, zopt_object[i], verbosity, 1198 &print_header); 1199 (void) printf("\n"); 1200 return; 1201 } 1202 1203 dump_object(os, 0, verbosity, &print_header); 1204 object_count = 1; 1205 1206 object = 0; 1207 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1208 dump_object(os, object, verbosity, &print_header); 1209 object_count++; 1210 } 1211 1212 ASSERT3U(object_count, ==, usedobjs); 1213 1214 (void) printf("\n"); 1215 1216 if (error != ESRCH) 1217 fatal("dmu_object_next() = %d", error); 1218 } 1219 1220 static void 1221 dump_uberblock(uberblock_t *ub) 1222 { 1223 time_t timestamp = ub->ub_timestamp; 1224 1225 (void) printf("Uberblock\n\n"); 1226 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1227 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1228 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1229 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1230 (void) printf("\ttimestamp = %llu UTC = %s", 1231 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1232 if (dump_opt['u'] >= 3) { 1233 char blkbuf[BP_SPRINTF_LEN]; 1234 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ub->ub_rootbp); 1235 (void) printf("\trootbp = %s\n", blkbuf); 1236 } 1237 (void) printf("\n"); 1238 } 1239 1240 static void 1241 dump_config(const char *pool) 1242 { 1243 spa_t *spa = NULL; 1244 1245 mutex_enter(&spa_namespace_lock); 1246 while ((spa = spa_next(spa)) != NULL) { 1247 if (pool == NULL) 1248 (void) printf("%s\n", spa_name(spa)); 1249 if (pool == NULL || strcmp(pool, spa_name(spa)) == 0) 1250 dump_nvlist(spa->spa_config, 4); 1251 } 1252 mutex_exit(&spa_namespace_lock); 1253 } 1254 1255 static void 1256 dump_cachefile(const char *cachefile) 1257 { 1258 int fd; 1259 struct stat64 statbuf; 1260 char *buf; 1261 nvlist_t *config; 1262 1263 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1264 (void) printf("cannot open '%s': %s\n", cachefile, 1265 strerror(errno)); 1266 exit(1); 1267 } 1268 1269 if (fstat64(fd, &statbuf) != 0) { 1270 (void) printf("failed to stat '%s': %s\n", cachefile, 1271 strerror(errno)); 1272 exit(1); 1273 } 1274 1275 if ((buf = malloc(statbuf.st_size)) == NULL) { 1276 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1277 (u_longlong_t)statbuf.st_size); 1278 exit(1); 1279 } 1280 1281 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1282 (void) fprintf(stderr, "failed to read %llu bytes\n", 1283 (u_longlong_t)statbuf.st_size); 1284 exit(1); 1285 } 1286 1287 (void) close(fd); 1288 1289 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1290 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1291 exit(1); 1292 } 1293 1294 free(buf); 1295 1296 dump_nvlist(config, 0); 1297 1298 nvlist_free(config); 1299 } 1300 1301 static void 1302 dump_label(const char *dev) 1303 { 1304 int fd; 1305 vdev_label_t label; 1306 char *buf = label.vl_vdev_phys.vp_nvlist; 1307 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1308 struct stat64 statbuf; 1309 uint64_t psize; 1310 int l; 1311 1312 if ((fd = open64(dev, O_RDONLY)) < 0) { 1313 (void) printf("cannot open '%s': %s\n", dev, strerror(errno)); 1314 exit(1); 1315 } 1316 1317 if (fstat64(fd, &statbuf) != 0) { 1318 (void) printf("failed to stat '%s': %s\n", dev, 1319 strerror(errno)); 1320 exit(1); 1321 } 1322 1323 psize = statbuf.st_size; 1324 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 1325 1326 for (l = 0; l < VDEV_LABELS; l++) { 1327 1328 nvlist_t *config = NULL; 1329 1330 (void) printf("--------------------------------------------\n"); 1331 (void) printf("LABEL %d\n", l); 1332 (void) printf("--------------------------------------------\n"); 1333 1334 if (pread64(fd, &label, sizeof (label), 1335 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 1336 (void) printf("failed to read label %d\n", l); 1337 continue; 1338 } 1339 1340 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 1341 (void) printf("failed to unpack label %d\n", l); 1342 continue; 1343 } 1344 dump_nvlist(config, 4); 1345 nvlist_free(config); 1346 } 1347 } 1348 1349 /*ARGSUSED*/ 1350 static int 1351 dump_one_dir(char *dsname, void *arg) 1352 { 1353 int error; 1354 objset_t *os; 1355 1356 error = dmu_objset_open(dsname, DMU_OST_ANY, 1357 DS_MODE_USER | DS_MODE_READONLY, &os); 1358 if (error) { 1359 (void) printf("Could not open %s\n", dsname); 1360 return (0); 1361 } 1362 dump_dir(os); 1363 dmu_objset_close(os); 1364 fuid_table_destroy(); 1365 return (0); 1366 } 1367 1368 static void 1369 zdb_space_map_load(spa_t *spa) 1370 { 1371 vdev_t *rvd = spa->spa_root_vdev; 1372 vdev_t *vd; 1373 int c, m, error; 1374 1375 for (c = 0; c < rvd->vdev_children; c++) { 1376 vd = rvd->vdev_child[c]; 1377 for (m = 0; m < vd->vdev_ms_count; m++) { 1378 metaslab_t *msp = vd->vdev_ms[m]; 1379 mutex_enter(&msp->ms_lock); 1380 error = space_map_load(&msp->ms_allocmap[0], NULL, 1381 SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset); 1382 mutex_exit(&msp->ms_lock); 1383 if (error) 1384 fatal("%s bad space map #%d, error %d", 1385 spa->spa_name, c, error); 1386 } 1387 } 1388 } 1389 1390 static int 1391 zdb_space_map_claim(spa_t *spa, blkptr_t *bp, zbookmark_t *zb) 1392 { 1393 dva_t *dva = bp->blk_dva; 1394 vdev_t *vd; 1395 metaslab_t *msp; 1396 space_map_t *allocmap, *freemap; 1397 int error; 1398 int d; 1399 blkptr_t blk = *bp; 1400 1401 for (d = 0; d < BP_GET_NDVAS(bp); d++) { 1402 uint64_t vdev = DVA_GET_VDEV(&dva[d]); 1403 uint64_t offset = DVA_GET_OFFSET(&dva[d]); 1404 uint64_t size = DVA_GET_ASIZE(&dva[d]); 1405 1406 if ((vd = vdev_lookup_top(spa, vdev)) == NULL) 1407 return (ENXIO); 1408 1409 if ((offset >> vd->vdev_ms_shift) >= vd->vdev_ms_count) 1410 return (ENXIO); 1411 1412 msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 1413 allocmap = &msp->ms_allocmap[0]; 1414 freemap = &msp->ms_freemap[0]; 1415 1416 /* Prepare our copy of the bp in case we need to read GBHs */ 1417 if (DVA_GET_GANG(&dva[d])) { 1418 size = vdev_psize_to_asize(vd, SPA_GANGBLOCKSIZE); 1419 DVA_SET_ASIZE(&blk.blk_dva[d], size); 1420 DVA_SET_GANG(&blk.blk_dva[d], 0); 1421 } 1422 1423 mutex_enter(&msp->ms_lock); 1424 if (space_map_contains(freemap, offset, size)) { 1425 mutex_exit(&msp->ms_lock); 1426 return (EAGAIN); /* allocated more than once */ 1427 } 1428 1429 if (!space_map_contains(allocmap, offset, size)) { 1430 mutex_exit(&msp->ms_lock); 1431 return (ESTALE); /* not allocated at all */ 1432 } 1433 1434 space_map_remove(allocmap, offset, size); 1435 space_map_add(freemap, offset, size); 1436 1437 mutex_exit(&msp->ms_lock); 1438 } 1439 1440 if (BP_IS_GANG(bp)) { 1441 zio_gbh_phys_t gbh; 1442 int g; 1443 1444 /* LINTED - compile time assert */ 1445 ASSERT(sizeof (zio_gbh_phys_t) == SPA_GANGBLOCKSIZE); 1446 1447 BP_SET_CHECKSUM(&blk, ZIO_CHECKSUM_GANG_HEADER); 1448 BP_SET_PSIZE(&blk, SPA_GANGBLOCKSIZE); 1449 BP_SET_LSIZE(&blk, SPA_GANGBLOCKSIZE); 1450 BP_SET_COMPRESS(&blk, ZIO_COMPRESS_OFF); 1451 error = zio_wait(zio_read(NULL, spa, &blk, &gbh, 1452 SPA_GANGBLOCKSIZE, NULL, NULL, ZIO_PRIORITY_SYNC_READ, 1453 ZIO_FLAG_CANFAIL | ZIO_FLAG_CONFIG_HELD, zb)); 1454 if (error) 1455 return (error); 1456 if (BP_SHOULD_BYTESWAP(&blk)) 1457 byteswap_uint64_array(&gbh, SPA_GANGBLOCKSIZE); 1458 for (g = 0; g < SPA_GBH_NBLKPTRS; g++) { 1459 if (BP_IS_HOLE(&gbh.zg_blkptr[g])) 1460 break; 1461 error = zdb_space_map_claim(spa, &gbh.zg_blkptr[g], zb); 1462 if (error) 1463 return (error); 1464 } 1465 } 1466 1467 return (0); 1468 } 1469 1470 static void 1471 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size) 1472 { 1473 metaslab_t *msp; 1474 1475 /* LINTED */ 1476 msp = (metaslab_t *)((char *)sm - offsetof(metaslab_t, ms_allocmap[0])); 1477 1478 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 1479 (u_longlong_t)msp->ms_group->mg_vd->vdev_id, 1480 (u_longlong_t)start, 1481 (u_longlong_t)size); 1482 } 1483 1484 static void 1485 zdb_space_map_unload(spa_t *spa) 1486 { 1487 vdev_t *rvd = spa->spa_root_vdev; 1488 vdev_t *vd; 1489 int c, m; 1490 1491 for (c = 0; c < rvd->vdev_children; c++) { 1492 vd = rvd->vdev_child[c]; 1493 for (m = 0; m < vd->vdev_ms_count; m++) { 1494 metaslab_t *msp = vd->vdev_ms[m]; 1495 mutex_enter(&msp->ms_lock); 1496 space_map_vacate(&msp->ms_allocmap[0], zdb_leak, 1497 &msp->ms_allocmap[0]); 1498 space_map_unload(&msp->ms_allocmap[0]); 1499 space_map_vacate(&msp->ms_freemap[0], NULL, NULL); 1500 mutex_exit(&msp->ms_lock); 1501 } 1502 } 1503 } 1504 1505 static void 1506 zdb_refresh_ubsync(spa_t *spa) 1507 { 1508 uberblock_t ub = { 0 }; 1509 vdev_t *rvd = spa->spa_root_vdev; 1510 zio_t *zio; 1511 1512 /* 1513 * Reload the uberblock. 1514 */ 1515 zio = zio_root(spa, NULL, NULL, 1516 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE); 1517 vdev_uberblock_load(zio, rvd, &ub); 1518 (void) zio_wait(zio); 1519 1520 if (ub.ub_txg != 0) 1521 spa->spa_ubsync = ub; 1522 } 1523 1524 /* 1525 * Verify that the sum of the sizes of all blocks in the pool adds up 1526 * to the SPA's sa_alloc total. 1527 */ 1528 typedef struct zdb_blkstats { 1529 uint64_t zb_asize; 1530 uint64_t zb_lsize; 1531 uint64_t zb_psize; 1532 uint64_t zb_count; 1533 } zdb_blkstats_t; 1534 1535 #define DMU_OT_DEFERRED DMU_OT_NONE 1536 #define DMU_OT_TOTAL DMU_OT_NUMTYPES 1537 1538 #define ZB_TOTAL ZB_MAXLEVEL 1539 1540 typedef struct zdb_cb { 1541 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1]; 1542 uint64_t zcb_errors[256]; 1543 traverse_blk_cache_t *zcb_cache; 1544 int zcb_readfails; 1545 int zcb_haderrors; 1546 } zdb_cb_t; 1547 1548 static void 1549 zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, int type) 1550 { 1551 int i, error; 1552 1553 for (i = 0; i < 4; i++) { 1554 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 1555 int t = (i & 1) ? type : DMU_OT_TOTAL; 1556 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 1557 1558 zb->zb_asize += BP_GET_ASIZE(bp); 1559 zb->zb_lsize += BP_GET_LSIZE(bp); 1560 zb->zb_psize += BP_GET_PSIZE(bp); 1561 zb->zb_count++; 1562 } 1563 1564 if (dump_opt['S']) { 1565 boolean_t print_sig; 1566 1567 print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 && 1568 BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS); 1569 1570 if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg) 1571 print_sig = B_FALSE; 1572 1573 if (print_sig) { 1574 (void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t" 1575 "%llx:%llx:%llx:%llx\n", 1576 (u_longlong_t)BP_GET_LEVEL(bp), 1577 (longlong_t)BP_GET_PSIZE(bp), 1578 (longlong_t)BP_GET_NDVAS(bp), 1579 dmu_ot[BP_GET_TYPE(bp)].ot_name, 1580 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1581 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name, 1582 (u_longlong_t)bp->blk_cksum.zc_word[0], 1583 (u_longlong_t)bp->blk_cksum.zc_word[1], 1584 (u_longlong_t)bp->blk_cksum.zc_word[2], 1585 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1586 } 1587 } 1588 1589 if (dump_opt['L']) 1590 return; 1591 1592 error = zdb_space_map_claim(spa, bp, &zcb->zcb_cache->bc_bookmark); 1593 1594 if (error == 0) 1595 return; 1596 1597 if (error == EAGAIN) 1598 (void) fatal("double-allocation, bp=%p", bp); 1599 1600 if (error == ESTALE) 1601 (void) fatal("reference to freed block, bp=%p", bp); 1602 1603 (void) fatal("fatal error %d in bp %p", error, bp); 1604 } 1605 1606 static int 1607 zdb_blkptr_cb(traverse_blk_cache_t *bc, spa_t *spa, void *arg) 1608 { 1609 zbookmark_t *zb = &bc->bc_bookmark; 1610 zdb_cb_t *zcb = arg; 1611 blkptr_t *bp = &bc->bc_blkptr; 1612 dmu_object_type_t type = BP_GET_TYPE(bp); 1613 char blkbuf[BP_SPRINTF_LEN]; 1614 int error = 0; 1615 1616 if (bc->bc_errno) { 1617 if (zcb->zcb_readfails++ < 10 && dump_opt['L']) { 1618 zdb_refresh_ubsync(spa); 1619 error = EAGAIN; 1620 } else { 1621 zcb->zcb_haderrors = 1; 1622 zcb->zcb_errors[bc->bc_errno]++; 1623 error = ERESTART; 1624 } 1625 1626 if (dump_opt['b'] >= 3 || (dump_opt['b'] >= 2 && bc->bc_errno)) 1627 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1628 else 1629 blkbuf[0] = '\0'; 1630 1631 if (!dump_opt['S']) { 1632 (void) printf("zdb_blkptr_cb: Got error %d reading " 1633 "<%llu, %llu, %lld, %llx> %s -- %s\n", 1634 bc->bc_errno, 1635 (u_longlong_t)zb->zb_objset, 1636 (u_longlong_t)zb->zb_object, 1637 (u_longlong_t)zb->zb_level, 1638 (u_longlong_t)zb->zb_blkid, 1639 blkbuf, 1640 error == EAGAIN ? "retrying" : "skipping"); 1641 } 1642 1643 return (error); 1644 } 1645 1646 zcb->zcb_readfails = 0; 1647 1648 ASSERT(!BP_IS_HOLE(bp)); 1649 1650 if (dump_opt['b'] >= 4) { 1651 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1652 (void) printf("objset %llu object %llu offset 0x%llx %s\n", 1653 (u_longlong_t)zb->zb_objset, 1654 (u_longlong_t)zb->zb_object, 1655 (u_longlong_t)blkid2offset(bc->bc_dnode, 1656 zb->zb_level, zb->zb_blkid), blkbuf); 1657 } 1658 1659 zdb_count_block(spa, zcb, bp, type); 1660 1661 return (0); 1662 } 1663 1664 static int 1665 dump_block_stats(spa_t *spa) 1666 { 1667 traverse_handle_t *th; 1668 zdb_cb_t zcb = { 0 }; 1669 traverse_blk_cache_t dummy_cache = { 0 }; 1670 zdb_blkstats_t *zb, *tzb; 1671 uint64_t alloc, space, logalloc; 1672 vdev_t *rvd = spa->spa_root_vdev; 1673 int leaks = 0; 1674 int advance = zdb_advance; 1675 int c, e, flags; 1676 1677 zcb.zcb_cache = &dummy_cache; 1678 1679 if (dump_opt['c'] || dump_opt['S']) 1680 advance |= ADVANCE_DATA; 1681 1682 advance |= ADVANCE_PRUNE | ADVANCE_ZIL; 1683 1684 if (!dump_opt['S']) { 1685 (void) printf("\nTraversing all blocks to %sverify" 1686 " nothing leaked ...\n", 1687 dump_opt['c'] ? "verify checksums and " : ""); 1688 } 1689 1690 /* 1691 * Load all space maps. As we traverse the pool, if we find a block 1692 * that's not in its space map, that indicates a double-allocation, 1693 * reference to a freed block, or an unclaimed block. Otherwise we 1694 * remove the block from the space map. If the space maps are not 1695 * empty when we're done, that indicates leaked blocks. 1696 */ 1697 if (!dump_opt['L']) 1698 zdb_space_map_load(spa); 1699 1700 /* 1701 * If there's a deferred-free bplist, process that first. 1702 */ 1703 if (spa->spa_sync_bplist_obj != 0) { 1704 bplist_t *bpl = &spa->spa_sync_bplist; 1705 blkptr_t blk; 1706 uint64_t itor = 0; 1707 1708 VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset, 1709 spa->spa_sync_bplist_obj)); 1710 1711 while (bplist_iterate(bpl, &itor, &blk) == 0) { 1712 if (dump_opt['b'] >= 4) { 1713 char blkbuf[BP_SPRINTF_LEN]; 1714 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk); 1715 (void) printf("[%s] %s\n", 1716 "deferred free", blkbuf); 1717 } 1718 zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED); 1719 } 1720 1721 bplist_close(bpl); 1722 } 1723 1724 /* 1725 * Now traverse the pool. If we're reading all data to verify 1726 * checksums, do a scrubbing read so that we validate all copies. 1727 */ 1728 flags = ZIO_FLAG_CANFAIL; 1729 if (advance & ADVANCE_DATA) 1730 flags |= ZIO_FLAG_SCRUB; 1731 th = traverse_init(spa, zdb_blkptr_cb, &zcb, advance, flags); 1732 th->th_noread = zdb_noread; 1733 1734 traverse_add_pool(th, 0, spa_first_txg(spa) + TXG_CONCURRENT_STATES); 1735 1736 while (traverse_more(th) == EAGAIN) 1737 continue; 1738 1739 traverse_fini(th); 1740 1741 if (zcb.zcb_haderrors && !dump_opt['S']) { 1742 (void) printf("\nError counts:\n\n"); 1743 (void) printf("\t%5s %s\n", "errno", "count"); 1744 for (e = 0; e < 256; e++) { 1745 if (zcb.zcb_errors[e] != 0) { 1746 (void) printf("\t%5d %llu\n", 1747 e, (u_longlong_t)zcb.zcb_errors[e]); 1748 } 1749 } 1750 } 1751 1752 /* 1753 * Report any leaked segments. 1754 */ 1755 if (!dump_opt['L']) 1756 zdb_space_map_unload(spa); 1757 1758 /* 1759 * If we're interested in printing out the blkptr signatures, 1760 * return now as we don't print out anything else (including 1761 * errors and leaks). 1762 */ 1763 if (dump_opt['S']) 1764 return (zcb.zcb_haderrors ? 3 : 0); 1765 1766 if (dump_opt['L']) 1767 (void) printf("\n\n *** Live pool traversal; " 1768 "block counts are only approximate ***\n\n"); 1769 1770 alloc = spa_get_alloc(spa); 1771 space = spa_get_space(spa); 1772 1773 /* 1774 * Log blocks allocated from a separate log device don't count 1775 * as part of the normal pool space; factor them in here. 1776 */ 1777 logalloc = 0; 1778 1779 for (c = 0; c < rvd->vdev_children; c++) 1780 if (rvd->vdev_child[c]->vdev_islog) 1781 logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc; 1782 1783 tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL]; 1784 1785 if (tzb->zb_asize == alloc + logalloc) { 1786 (void) printf("\n\tNo leaks (block sum matches space" 1787 " maps exactly)\n"); 1788 } else { 1789 (void) printf("block traversal size %llu != alloc %llu " 1790 "(leaked %lld)\n", 1791 (u_longlong_t)tzb->zb_asize, 1792 (u_longlong_t)alloc + logalloc, 1793 (u_longlong_t)(alloc + logalloc - tzb->zb_asize)); 1794 leaks = 1; 1795 } 1796 1797 if (tzb->zb_count == 0) 1798 return (2); 1799 1800 (void) printf("\n"); 1801 (void) printf("\tbp count: %10llu\n", 1802 (u_longlong_t)tzb->zb_count); 1803 (void) printf("\tbp logical: %10llu\t avg: %6llu\n", 1804 (u_longlong_t)tzb->zb_lsize, 1805 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 1806 (void) printf("\tbp physical: %10llu\t avg:" 1807 " %6llu\tcompression: %6.2f\n", 1808 (u_longlong_t)tzb->zb_psize, 1809 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 1810 (double)tzb->zb_lsize / tzb->zb_psize); 1811 (void) printf("\tbp allocated: %10llu\t avg:" 1812 " %6llu\tcompression: %6.2f\n", 1813 (u_longlong_t)tzb->zb_asize, 1814 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 1815 (double)tzb->zb_lsize / tzb->zb_asize); 1816 (void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n", 1817 (u_longlong_t)alloc, 100.0 * alloc / space); 1818 1819 if (dump_opt['b'] >= 2) { 1820 int l, t, level; 1821 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 1822 "\t avg\t comp\t%%Total\tType\n"); 1823 1824 for (t = 0; t <= DMU_OT_NUMTYPES; t++) { 1825 char csize[6], lsize[6], psize[6], asize[6], avg[6]; 1826 char *typename; 1827 1828 typename = t == DMU_OT_DEFERRED ? "deferred free" : 1829 t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name; 1830 1831 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 1832 (void) printf("%6s\t%5s\t%5s\t%5s" 1833 "\t%5s\t%5s\t%6s\t%s\n", 1834 "-", 1835 "-", 1836 "-", 1837 "-", 1838 "-", 1839 "-", 1840 "-", 1841 typename); 1842 continue; 1843 } 1844 1845 for (l = ZB_TOTAL - 1; l >= -1; l--) { 1846 level = (l == -1 ? ZB_TOTAL : l); 1847 zb = &zcb.zcb_type[level][t]; 1848 1849 if (zb->zb_asize == 0) 1850 continue; 1851 1852 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 1853 continue; 1854 1855 if (level == 0 && zb->zb_asize == 1856 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 1857 continue; 1858 1859 nicenum(zb->zb_count, csize); 1860 nicenum(zb->zb_lsize, lsize); 1861 nicenum(zb->zb_psize, psize); 1862 nicenum(zb->zb_asize, asize); 1863 nicenum(zb->zb_asize / zb->zb_count, avg); 1864 1865 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 1866 "\t%5.2f\t%6.2f\t", 1867 csize, lsize, psize, asize, avg, 1868 (double)zb->zb_lsize / zb->zb_psize, 1869 100.0 * zb->zb_asize / tzb->zb_asize); 1870 1871 if (level == ZB_TOTAL) 1872 (void) printf("%s\n", typename); 1873 else 1874 (void) printf(" L%d %s\n", 1875 level, typename); 1876 } 1877 } 1878 } 1879 1880 (void) printf("\n"); 1881 1882 if (leaks) 1883 return (2); 1884 1885 if (zcb.zcb_haderrors) 1886 return (3); 1887 1888 return (0); 1889 } 1890 1891 static void 1892 dump_zpool(spa_t *spa) 1893 { 1894 dsl_pool_t *dp = spa_get_dsl(spa); 1895 int rc = 0; 1896 1897 spa_config_enter(spa, RW_READER, FTAG); 1898 1899 if (dump_opt['u']) 1900 dump_uberblock(&spa->spa_uberblock); 1901 1902 if (dump_opt['d'] || dump_opt['i']) { 1903 dump_dir(dp->dp_meta_objset); 1904 if (dump_opt['d'] >= 3) { 1905 dump_bplist(dp->dp_meta_objset, 1906 spa->spa_sync_bplist_obj, "Deferred frees"); 1907 dump_dtl(spa->spa_root_vdev, 0); 1908 dump_metaslabs(spa); 1909 } 1910 (void) dmu_objset_find(spa->spa_name, dump_one_dir, NULL, 1911 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 1912 } 1913 1914 if (dump_opt['b'] || dump_opt['c'] || dump_opt['S']) 1915 rc = dump_block_stats(spa); 1916 1917 if (dump_opt['s']) 1918 show_pool_stats(spa); 1919 1920 spa_config_exit(spa, FTAG); 1921 1922 if (rc != 0) 1923 exit(rc); 1924 } 1925 1926 #define ZDB_FLAG_CHECKSUM 0x0001 1927 #define ZDB_FLAG_DECOMPRESS 0x0002 1928 #define ZDB_FLAG_BSWAP 0x0004 1929 #define ZDB_FLAG_GBH 0x0008 1930 #define ZDB_FLAG_INDIRECT 0x0010 1931 #define ZDB_FLAG_PHYS 0x0020 1932 #define ZDB_FLAG_RAW 0x0040 1933 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 1934 1935 int flagbits[256]; 1936 1937 static void 1938 zdb_print_blkptr(blkptr_t *bp, int flags) 1939 { 1940 dva_t *dva = bp->blk_dva; 1941 int d; 1942 1943 if (flags & ZDB_FLAG_BSWAP) 1944 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 1945 /* 1946 * Super-ick warning: This code is also duplicated in 1947 * cmd/mdb/common/modules/zfs/zfs.c . Yeah, I hate code 1948 * replication, too. 1949 */ 1950 for (d = 0; d < BP_GET_NDVAS(bp); d++) { 1951 (void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d, 1952 (longlong_t)DVA_GET_VDEV(&dva[d]), 1953 (longlong_t)DVA_GET_OFFSET(&dva[d])); 1954 (void) printf("\tDVA[%d]: GANG: %-5s GRID: %04llx\t" 1955 "ASIZE: %llx\n", d, 1956 DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE", 1957 (longlong_t)DVA_GET_GRID(&dva[d]), 1958 (longlong_t)DVA_GET_ASIZE(&dva[d])); 1959 (void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d, 1960 (u_longlong_t)DVA_GET_VDEV(&dva[d]), 1961 (longlong_t)DVA_GET_OFFSET(&dva[d]), 1962 (longlong_t)BP_GET_PSIZE(bp), 1963 BP_SHOULD_BYTESWAP(bp) ? "e" : "", 1964 !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ? 1965 "d" : "", 1966 DVA_GET_GANG(&dva[d]) ? "g" : "", 1967 BP_GET_COMPRESS(bp) != 0 ? "d" : ""); 1968 } 1969 (void) printf("\tLSIZE: %-16llx\t\tPSIZE: %llx\n", 1970 (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp)); 1971 (void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE: %s\n", 1972 BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG", 1973 dmu_ot[BP_GET_TYPE(bp)].ot_name); 1974 (void) printf("\tBIRTH: %-16llx LEVEL: %-2llu\tFILL: %llx\n", 1975 (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp), 1976 (u_longlong_t)bp->blk_fill); 1977 (void) printf("\tCKFUNC: %-16s\t\tCOMP: %s\n", 1978 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1979 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name); 1980 (void) printf("\tCKSUM: %llx:%llx:%llx:%llx\n", 1981 (u_longlong_t)bp->blk_cksum.zc_word[0], 1982 (u_longlong_t)bp->blk_cksum.zc_word[1], 1983 (u_longlong_t)bp->blk_cksum.zc_word[2], 1984 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1985 } 1986 1987 static void 1988 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 1989 { 1990 int i; 1991 1992 for (i = 0; i < nbps; i++) 1993 zdb_print_blkptr(&bp[i], flags); 1994 } 1995 1996 static void 1997 zdb_dump_gbh(void *buf, int flags) 1998 { 1999 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2000 } 2001 2002 static void 2003 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2004 { 2005 if (flags & ZDB_FLAG_BSWAP) 2006 byteswap_uint64_array(buf, size); 2007 (void) write(2, buf, size); 2008 } 2009 2010 static void 2011 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2012 { 2013 uint64_t *d = (uint64_t *)buf; 2014 int nwords = size / sizeof (uint64_t); 2015 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2016 int i, j; 2017 char *hdr, *c; 2018 2019 2020 if (do_bswap) 2021 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2022 else 2023 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2024 2025 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2026 2027 for (i = 0; i < nwords; i += 2) { 2028 (void) printf("%06llx: %016llx %016llx ", 2029 (u_longlong_t)(i * sizeof (uint64_t)), 2030 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2031 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2032 2033 c = (char *)&d[i]; 2034 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2035 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2036 (void) printf("\n"); 2037 } 2038 } 2039 2040 /* 2041 * There are two acceptable formats: 2042 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2043 * child[.child]* - For example: 0.1.1 2044 * 2045 * The second form can be used to specify arbitrary vdevs anywhere 2046 * in the heirarchy. For example, in a pool with a mirror of 2047 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2048 */ 2049 static vdev_t * 2050 zdb_vdev_lookup(vdev_t *vdev, char *path) 2051 { 2052 char *s, *p, *q; 2053 int i; 2054 2055 if (vdev == NULL) 2056 return (NULL); 2057 2058 /* First, assume the x.x.x.x format */ 2059 i = (int)strtoul(path, &s, 10); 2060 if (s == path || (s && *s != '.' && *s != '\0')) 2061 goto name; 2062 if (i < 0 || i >= vdev->vdev_children) 2063 return (NULL); 2064 2065 vdev = vdev->vdev_child[i]; 2066 if (*s == '\0') 2067 return (vdev); 2068 return (zdb_vdev_lookup(vdev, s+1)); 2069 2070 name: 2071 for (i = 0; i < vdev->vdev_children; i++) { 2072 vdev_t *vc = vdev->vdev_child[i]; 2073 2074 if (vc->vdev_path == NULL) { 2075 vc = zdb_vdev_lookup(vc, path); 2076 if (vc == NULL) 2077 continue; 2078 else 2079 return (vc); 2080 } 2081 2082 p = strrchr(vc->vdev_path, '/'); 2083 p = p ? p + 1 : vc->vdev_path; 2084 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2085 2086 if (strcmp(vc->vdev_path, path) == 0) 2087 return (vc); 2088 if (strcmp(p, path) == 0) 2089 return (vc); 2090 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2091 return (vc); 2092 } 2093 2094 return (NULL); 2095 } 2096 2097 /* 2098 * Read a block from a pool and print it out. The syntax of the 2099 * block descriptor is: 2100 * 2101 * pool:vdev_specifier:offset:size[:flags] 2102 * 2103 * pool - The name of the pool you wish to read from 2104 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2105 * offset - offset, in hex, in bytes 2106 * size - Amount of data to read, in hex, in bytes 2107 * flags - A string of characters specifying options 2108 * b: Decode a blkptr at given offset within block 2109 * *c: Calculate and display checksums 2110 * *d: Decompress data before dumping 2111 * e: Byteswap data before dumping 2112 * *g: Display data as a gang block header 2113 * *i: Display as an indirect block 2114 * p: Do I/O to physical offset 2115 * r: Dump raw data to stdout 2116 * 2117 * * = not yet implemented 2118 */ 2119 static void 2120 zdb_read_block(char *thing, spa_t **spap) 2121 { 2122 spa_t *spa = *spap; 2123 int flags = 0; 2124 uint64_t offset = 0, size = 0, blkptr_offset = 0; 2125 zio_t *zio; 2126 vdev_t *vd; 2127 void *buf; 2128 char *s, *p, *dup, *spa_name, *vdev, *flagstr; 2129 int i, error, zio_flags; 2130 2131 dup = strdup(thing); 2132 s = strtok(dup, ":"); 2133 spa_name = s ? s : ""; 2134 s = strtok(NULL, ":"); 2135 vdev = s ? s : ""; 2136 s = strtok(NULL, ":"); 2137 offset = strtoull(s ? s : "", NULL, 16); 2138 s = strtok(NULL, ":"); 2139 size = strtoull(s ? s : "", NULL, 16); 2140 s = strtok(NULL, ":"); 2141 flagstr = s ? s : ""; 2142 2143 s = NULL; 2144 if (size == 0) 2145 s = "size must not be zero"; 2146 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2147 s = "size must be a multiple of sector size"; 2148 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2149 s = "offset must be a multiple of sector size"; 2150 if (s) { 2151 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2152 free(dup); 2153 return; 2154 } 2155 2156 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2157 for (i = 0; flagstr[i]; i++) { 2158 int bit = flagbits[(uchar_t)flagstr[i]]; 2159 2160 if (bit == 0) { 2161 (void) printf("***Invalid flag: %c\n", 2162 flagstr[i]); 2163 continue; 2164 } 2165 flags |= bit; 2166 2167 /* If it's not something with an argument, keep going */ 2168 if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS | 2169 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2170 continue; 2171 2172 p = &flagstr[i + 1]; 2173 if (bit == ZDB_FLAG_PRINT_BLKPTR) 2174 blkptr_offset = strtoull(p, &p, 16); 2175 if (*p != ':' && *p != '\0') { 2176 (void) printf("***Invalid flag arg: '%s'\n", s); 2177 free(dup); 2178 return; 2179 } 2180 } 2181 } 2182 2183 if (spa == NULL || spa->spa_name == NULL || 2184 strcmp(spa->spa_name, spa_name)) { 2185 if (spa && spa->spa_name) 2186 spa_close(spa, (void *)zdb_read_block); 2187 error = spa_open(spa_name, spap, (void *)zdb_read_block); 2188 if (error) 2189 fatal("Failed to open pool '%s': %s", 2190 spa_name, strerror(error)); 2191 spa = *spap; 2192 } 2193 2194 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 2195 if (vd == NULL) { 2196 (void) printf("***Invalid vdev: %s\n", vdev); 2197 free(dup); 2198 return; 2199 } else { 2200 if (vd->vdev_path) 2201 (void) printf("Found vdev: %s\n", vd->vdev_path); 2202 else 2203 (void) printf("Found vdev type: %s\n", 2204 vd->vdev_ops->vdev_op_type); 2205 } 2206 2207 buf = umem_alloc(size, UMEM_NOFAIL); 2208 2209 zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 2210 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | ZIO_FLAG_NOBOOKMARK; 2211 2212 if (flags & ZDB_FLAG_PHYS) 2213 zio_flags |= ZIO_FLAG_PHYSICAL; 2214 2215 zio = zio_root(spa, NULL, NULL, 0); 2216 /* XXX todo - cons up a BP so RAID-Z will be happy */ 2217 zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size, 2218 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL)); 2219 error = zio_wait(zio); 2220 2221 if (error) { 2222 (void) printf("Read of %s failed, error: %d\n", thing, error); 2223 goto out; 2224 } 2225 2226 if (flags & ZDB_FLAG_PRINT_BLKPTR) 2227 zdb_print_blkptr((blkptr_t *)(void *) 2228 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 2229 else if (flags & ZDB_FLAG_RAW) 2230 zdb_dump_block_raw(buf, size, flags); 2231 else if (flags & ZDB_FLAG_INDIRECT) 2232 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 2233 flags); 2234 else if (flags & ZDB_FLAG_GBH) 2235 zdb_dump_gbh(buf, flags); 2236 else 2237 zdb_dump_block(thing, buf, size, flags); 2238 2239 out: 2240 umem_free(buf, size); 2241 free(dup); 2242 } 2243 2244 static boolean_t 2245 nvlist_string_match(nvlist_t *config, char *name, char *tgt) 2246 { 2247 char *s; 2248 2249 if (nvlist_lookup_string(config, name, &s) != 0) 2250 return (B_FALSE); 2251 2252 return (strcmp(s, tgt) == 0); 2253 } 2254 2255 static boolean_t 2256 nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt) 2257 { 2258 uint64_t val; 2259 2260 if (nvlist_lookup_uint64(config, name, &val) != 0) 2261 return (B_FALSE); 2262 2263 return (val == tgt); 2264 } 2265 2266 static boolean_t 2267 vdev_child_guid_match(nvlist_t *vdev, uint64_t guid) 2268 { 2269 nvlist_t **child; 2270 uint_t c, children; 2271 2272 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2273 &child, &children) == 0); 2274 for (c = 0; c < children; ++c) 2275 if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid)) 2276 return (B_TRUE); 2277 return (B_FALSE); 2278 } 2279 2280 static boolean_t 2281 vdev_child_string_match(nvlist_t *vdev, char *tgt) 2282 { 2283 nvlist_t **child; 2284 uint_t c, children; 2285 2286 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2287 &child, &children) == 0); 2288 for (c = 0; c < children; ++c) { 2289 if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) || 2290 nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt)) 2291 return (B_TRUE); 2292 } 2293 return (B_FALSE); 2294 } 2295 2296 static boolean_t 2297 vdev_guid_match(nvlist_t *config, uint64_t guid) 2298 { 2299 nvlist_t *nvroot; 2300 2301 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2302 &nvroot) == 0); 2303 2304 return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) || 2305 vdev_child_guid_match(nvroot, guid)); 2306 } 2307 2308 static boolean_t 2309 vdev_string_match(nvlist_t *config, char *tgt) 2310 { 2311 nvlist_t *nvroot; 2312 2313 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2314 &nvroot) == 0); 2315 2316 return (vdev_child_string_match(nvroot, tgt)); 2317 } 2318 2319 static boolean_t 2320 pool_match(nvlist_t *config, char *tgt) 2321 { 2322 uint64_t guid = strtoull(tgt, NULL, 0); 2323 2324 if (guid != 0) { 2325 return ( 2326 nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) || 2327 vdev_guid_match(config, guid)); 2328 } else { 2329 return ( 2330 nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) || 2331 vdev_string_match(config, tgt)); 2332 } 2333 } 2334 2335 static int 2336 find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir) 2337 { 2338 nvlist_t *pools; 2339 int error = ENOENT; 2340 nvlist_t *match = NULL; 2341 2342 if (vdev_dir != NULL) 2343 pools = zpool_find_import_activeok(g_zfs, 1, &vdev_dir); 2344 else 2345 pools = zpool_find_import_activeok(g_zfs, 0, NULL); 2346 2347 if (pools != NULL) { 2348 nvpair_t *elem = NULL; 2349 2350 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 2351 verify(nvpair_value_nvlist(elem, configp) == 0); 2352 if (pool_match(*configp, pool_id)) { 2353 if (match != NULL) { 2354 (void) fatal( 2355 "More than one matching pool - " 2356 "specify guid/devid/device path."); 2357 } else { 2358 match = *configp; 2359 error = 0; 2360 } 2361 } 2362 } 2363 } 2364 2365 *configp = error ? NULL : match; 2366 2367 return (error); 2368 } 2369 2370 int 2371 main(int argc, char **argv) 2372 { 2373 int i, c; 2374 struct rlimit rl = { 1024, 1024 }; 2375 spa_t *spa; 2376 objset_t *os = NULL; 2377 char *endstr; 2378 int dump_all = 1; 2379 int verbose = 0; 2380 int error; 2381 int flag, set; 2382 int exported = 0; 2383 char *vdev_dir = NULL; 2384 2385 (void) setrlimit(RLIMIT_NOFILE, &rl); 2386 (void) enable_extended_FILE_stdio(-1, -1); 2387 2388 dprintf_setup(&argc, argv); 2389 2390 while ((c = getopt(argc, argv, "udibcsvCLO:B:S:U:lRep:")) != -1) { 2391 switch (c) { 2392 case 'u': 2393 case 'd': 2394 case 'i': 2395 case 'b': 2396 case 'c': 2397 case 's': 2398 case 'C': 2399 case 'l': 2400 case 'R': 2401 dump_opt[c]++; 2402 dump_all = 0; 2403 break; 2404 case 'L': 2405 dump_opt[c]++; 2406 break; 2407 case 'O': 2408 endstr = optarg; 2409 if (endstr[0] == '!') { 2410 endstr++; 2411 set = 0; 2412 } else { 2413 set = 1; 2414 } 2415 if (strcmp(endstr, "post") == 0) { 2416 flag = ADVANCE_PRE; 2417 set = !set; 2418 } else if (strcmp(endstr, "pre") == 0) { 2419 flag = ADVANCE_PRE; 2420 } else if (strcmp(endstr, "prune") == 0) { 2421 flag = ADVANCE_PRUNE; 2422 } else if (strcmp(endstr, "data") == 0) { 2423 flag = ADVANCE_DATA; 2424 } else if (strcmp(endstr, "holes") == 0) { 2425 flag = ADVANCE_HOLES; 2426 } else { 2427 usage(); 2428 } 2429 if (set) 2430 zdb_advance |= flag; 2431 else 2432 zdb_advance &= ~flag; 2433 break; 2434 case 'B': 2435 endstr = optarg - 1; 2436 zdb_noread.zb_objset = strtoull(endstr + 1, &endstr, 0); 2437 zdb_noread.zb_object = strtoull(endstr + 1, &endstr, 0); 2438 zdb_noread.zb_level = strtol(endstr + 1, &endstr, 0); 2439 zdb_noread.zb_blkid = strtoull(endstr + 1, &endstr, 16); 2440 (void) printf("simulating bad block " 2441 "<%llu, %llu, %lld, %llx>\n", 2442 (u_longlong_t)zdb_noread.zb_objset, 2443 (u_longlong_t)zdb_noread.zb_object, 2444 (u_longlong_t)zdb_noread.zb_level, 2445 (u_longlong_t)zdb_noread.zb_blkid); 2446 break; 2447 case 'v': 2448 verbose++; 2449 break; 2450 case 'U': 2451 spa_config_path = optarg; 2452 break; 2453 case 'e': 2454 exported = 1; 2455 break; 2456 case 'p': 2457 vdev_dir = optarg; 2458 break; 2459 case 'S': 2460 dump_opt[c]++; 2461 dump_all = 0; 2462 zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0); 2463 if (!zdb_sig_user_data && strncmp(optarg, "all:", 4)) 2464 usage(); 2465 endstr = strchr(optarg, ':') + 1; 2466 if (strcmp(endstr, "fletcher2") == 0) 2467 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2468 else if (strcmp(endstr, "fletcher4") == 0) 2469 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4; 2470 else if (strcmp(endstr, "sha256") == 0) 2471 zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; 2472 else if (strcmp(endstr, "all") == 0) 2473 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2474 else 2475 usage(); 2476 break; 2477 default: 2478 usage(); 2479 break; 2480 } 2481 } 2482 2483 if (vdev_dir != NULL && exported == 0) 2484 (void) fatal("-p option requires use of -e\n"); 2485 2486 kernel_init(FREAD); 2487 g_zfs = libzfs_init(); 2488 ASSERT(g_zfs != NULL); 2489 2490 /* 2491 * Disable vdev caching. If we don't do this, live pool traversal 2492 * won't make progress because it will never see disk updates. 2493 */ 2494 zfs_vdev_cache_size = 0; 2495 2496 for (c = 0; c < 256; c++) { 2497 if (dump_all && c != 'L' && c != 'l' && c != 'R') 2498 dump_opt[c] = 1; 2499 if (dump_opt[c]) 2500 dump_opt[c] += verbose; 2501 } 2502 2503 argc -= optind; 2504 argv += optind; 2505 2506 if (argc < 1) { 2507 if (dump_opt['C']) { 2508 dump_cachefile(spa_config_path); 2509 return (0); 2510 } 2511 usage(); 2512 } 2513 2514 if (dump_opt['l']) { 2515 dump_label(argv[0]); 2516 return (0); 2517 } 2518 2519 if (dump_opt['R']) { 2520 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 2521 flagbits['c'] = ZDB_FLAG_CHECKSUM; 2522 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 2523 flagbits['e'] = ZDB_FLAG_BSWAP; 2524 flagbits['g'] = ZDB_FLAG_GBH; 2525 flagbits['i'] = ZDB_FLAG_INDIRECT; 2526 flagbits['p'] = ZDB_FLAG_PHYS; 2527 flagbits['r'] = ZDB_FLAG_RAW; 2528 2529 spa = NULL; 2530 while (argv[0]) { 2531 zdb_read_block(argv[0], &spa); 2532 argv++; 2533 argc--; 2534 } 2535 if (spa) 2536 spa_close(spa, (void *)zdb_read_block); 2537 return (0); 2538 } 2539 2540 if (dump_opt['C']) 2541 dump_config(argv[0]); 2542 2543 error = 0; 2544 if (exported) { 2545 /* 2546 * Check to see if the name refers to an exported zpool 2547 */ 2548 char *slash; 2549 nvlist_t *exported_conf = NULL; 2550 2551 if ((slash = strchr(argv[0], '/')) != NULL) 2552 *slash = '\0'; 2553 2554 error = find_exported_zpool(argv[0], &exported_conf, vdev_dir); 2555 if (error == 0) { 2556 nvlist_t *nvl = NULL; 2557 2558 if (vdev_dir != NULL) { 2559 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 2560 error = ENOMEM; 2561 else if (nvlist_add_string(nvl, 2562 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), 2563 vdev_dir) != 0) 2564 error = ENOMEM; 2565 } 2566 2567 if (error == 0) 2568 error = spa_import_faulted(argv[0], 2569 exported_conf, nvl); 2570 2571 nvlist_free(nvl); 2572 } 2573 2574 if (slash != NULL) 2575 *slash = '/'; 2576 } 2577 2578 if (error == 0) { 2579 if (strchr(argv[0], '/') != NULL) { 2580 error = dmu_objset_open(argv[0], DMU_OST_ANY, 2581 DS_MODE_USER | DS_MODE_READONLY, &os); 2582 } else { 2583 error = spa_open(argv[0], &spa, FTAG); 2584 } 2585 } 2586 2587 if (error) 2588 fatal("can't open %s: %s", argv[0], strerror(error)); 2589 2590 argv++; 2591 if (--argc > 0) { 2592 zopt_objects = argc; 2593 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 2594 for (i = 0; i < zopt_objects; i++) { 2595 errno = 0; 2596 zopt_object[i] = strtoull(argv[i], NULL, 0); 2597 if (zopt_object[i] == 0 && errno != 0) 2598 fatal("bad object number %s: %s", 2599 argv[i], strerror(errno)); 2600 } 2601 } 2602 2603 if (os != NULL) { 2604 dump_dir(os); 2605 dmu_objset_close(os); 2606 } else { 2607 dump_zpool(spa); 2608 spa_close(spa, FTAG); 2609 } 2610 2611 fuid_table_destroy(); 2612 2613 libzfs_fini(g_zfs); 2614 kernel_fini(); 2615 2616 return (0); 2617 } 2618