1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <stdio.h> 27 #include <stdio_ext.h> 28 #include <stdlib.h> 29 #include <ctype.h> 30 #include <sys/zfs_context.h> 31 #include <sys/spa.h> 32 #include <sys/spa_impl.h> 33 #include <sys/dmu.h> 34 #include <sys/zap.h> 35 #include <sys/fs/zfs.h> 36 #include <sys/zfs_znode.h> 37 #include <sys/vdev.h> 38 #include <sys/vdev_impl.h> 39 #include <sys/metaslab_impl.h> 40 #include <sys/dmu_objset.h> 41 #include <sys/dsl_dir.h> 42 #include <sys/dsl_dataset.h> 43 #include <sys/dsl_pool.h> 44 #include <sys/dbuf.h> 45 #include <sys/zil.h> 46 #include <sys/zil_impl.h> 47 #include <sys/stat.h> 48 #include <sys/resource.h> 49 #include <sys/dmu_traverse.h> 50 #include <sys/zio_checksum.h> 51 #include <sys/zio_compress.h> 52 #include <sys/zfs_fuid.h> 53 #include <sys/arc.h> 54 #undef ZFS_MAXNAMELEN 55 #undef verify 56 #include <libzfs.h> 57 58 const char cmdname[] = "zdb"; 59 uint8_t dump_opt[256]; 60 61 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 62 63 extern void dump_intent_log(zilog_t *); 64 uint64_t *zopt_object = NULL; 65 int zopt_objects = 0; 66 libzfs_handle_t *g_zfs; 67 boolean_t zdb_sig_user_data = B_TRUE; 68 int zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; 69 70 /* 71 * These libumem hooks provide a reasonable set of defaults for the allocator's 72 * debugging facilities. 73 */ 74 const char * 75 _umem_debug_init() 76 { 77 return ("default,verbose"); /* $UMEM_DEBUG setting */ 78 } 79 80 const char * 81 _umem_logging_init(void) 82 { 83 return ("fail,contents"); /* $UMEM_LOGGING setting */ 84 } 85 86 static void 87 usage(void) 88 { 89 (void) fprintf(stderr, 90 "Usage: %s [-udibcsvL] [-U cachefile_path] [-t txg]\n" 91 "\t [-S user:cksumalg] " 92 "dataset [object...]\n" 93 " %s -C [pool]\n" 94 " %s -l dev\n" 95 " %s -R pool:vdev:offset:size:flags\n" 96 " %s [-p path_to_vdev_dir]\n" 97 " %s -e pool | GUID | devid ...\n", 98 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 99 100 (void) fprintf(stderr, " -u uberblock\n"); 101 (void) fprintf(stderr, " -d datasets\n"); 102 (void) fprintf(stderr, " -C cached pool configuration\n"); 103 (void) fprintf(stderr, " -i intent logs\n"); 104 (void) fprintf(stderr, " -b block statistics\n"); 105 (void) fprintf(stderr, " -c checksum all metadata (twice for " 106 "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 disable leak tracking (do not " 113 "load spacemaps)\n"); 114 (void) fprintf(stderr, " -U cachefile_path -- use alternate " 115 "cachefile\n"); 116 (void) fprintf(stderr, " -R read and display block from a " 117 "device\n"); 118 (void) fprintf(stderr, " -e Pool is exported/destroyed/" 119 "has altroot\n"); 120 (void) fprintf(stderr, " -p <Path to vdev dir> (use with -e)\n"); 121 (void) fprintf(stderr, " -t <txg> highest txg to use when " 122 "searching for uberblocks\n"); 123 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 124 "to make only that option verbose\n"); 125 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 126 exit(1); 127 } 128 129 /* 130 * Called for usage errors that are discovered after a call to spa_open(), 131 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 132 */ 133 134 static void 135 fatal(const char *fmt, ...) 136 { 137 va_list ap; 138 139 va_start(ap, fmt); 140 (void) fprintf(stderr, "%s: ", cmdname); 141 (void) vfprintf(stderr, fmt, ap); 142 va_end(ap); 143 (void) fprintf(stderr, "\n"); 144 145 exit(1); 146 } 147 148 static void 149 dump_nvlist(nvlist_t *list, int indent) 150 { 151 nvpair_t *elem = NULL; 152 153 while ((elem = nvlist_next_nvpair(list, elem)) != NULL) { 154 switch (nvpair_type(elem)) { 155 case DATA_TYPE_STRING: 156 { 157 char *value; 158 159 VERIFY(nvpair_value_string(elem, &value) == 0); 160 (void) printf("%*s%s='%s'\n", indent, "", 161 nvpair_name(elem), value); 162 } 163 break; 164 165 case DATA_TYPE_UINT64: 166 { 167 uint64_t value; 168 169 VERIFY(nvpair_value_uint64(elem, &value) == 0); 170 (void) printf("%*s%s=%llu\n", indent, "", 171 nvpair_name(elem), (u_longlong_t)value); 172 } 173 break; 174 175 case DATA_TYPE_NVLIST: 176 { 177 nvlist_t *value; 178 179 VERIFY(nvpair_value_nvlist(elem, &value) == 0); 180 (void) printf("%*s%s\n", indent, "", 181 nvpair_name(elem)); 182 dump_nvlist(value, indent + 4); 183 } 184 break; 185 186 case DATA_TYPE_NVLIST_ARRAY: 187 { 188 nvlist_t **value; 189 uint_t c, count; 190 191 VERIFY(nvpair_value_nvlist_array(elem, &value, 192 &count) == 0); 193 194 for (c = 0; c < count; c++) { 195 (void) printf("%*s%s[%u]\n", indent, "", 196 nvpair_name(elem), c); 197 dump_nvlist(value[c], indent + 8); 198 } 199 } 200 break; 201 202 default: 203 204 (void) printf("bad config type %d for %s\n", 205 nvpair_type(elem), nvpair_name(elem)); 206 } 207 } 208 } 209 210 /* ARGSUSED */ 211 static void 212 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 213 { 214 nvlist_t *nv; 215 size_t nvsize = *(uint64_t *)data; 216 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 217 218 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed)); 219 220 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 221 222 umem_free(packed, nvsize); 223 224 dump_nvlist(nv, 8); 225 226 nvlist_free(nv); 227 } 228 229 const char dump_zap_stars[] = "****************************************"; 230 const int dump_zap_width = sizeof (dump_zap_stars) - 1; 231 232 static void 233 dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE]) 234 { 235 int i; 236 int minidx = ZAP_HISTOGRAM_SIZE - 1; 237 int maxidx = 0; 238 uint64_t max = 0; 239 240 for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) { 241 if (histo[i] > max) 242 max = histo[i]; 243 if (histo[i] > 0 && i > maxidx) 244 maxidx = i; 245 if (histo[i] > 0 && i < minidx) 246 minidx = i; 247 } 248 249 if (max < dump_zap_width) 250 max = dump_zap_width; 251 252 for (i = minidx; i <= maxidx; i++) 253 (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i], 254 &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]); 255 } 256 257 static void 258 dump_zap_stats(objset_t *os, uint64_t object) 259 { 260 int error; 261 zap_stats_t zs; 262 263 error = zap_get_stats(os, object, &zs); 264 if (error) 265 return; 266 267 if (zs.zs_ptrtbl_len == 0) { 268 ASSERT(zs.zs_num_blocks == 1); 269 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 270 (u_longlong_t)zs.zs_blocksize, 271 (u_longlong_t)zs.zs_num_entries); 272 return; 273 } 274 275 (void) printf("\tFat ZAP stats:\n"); 276 277 (void) printf("\t\tPointer table:\n"); 278 (void) printf("\t\t\t%llu elements\n", 279 (u_longlong_t)zs.zs_ptrtbl_len); 280 (void) printf("\t\t\tzt_blk: %llu\n", 281 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 282 (void) printf("\t\t\tzt_numblks: %llu\n", 283 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 284 (void) printf("\t\t\tzt_shift: %llu\n", 285 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 286 (void) printf("\t\t\tzt_blks_copied: %llu\n", 287 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 288 (void) printf("\t\t\tzt_nextblk: %llu\n", 289 (u_longlong_t)zs.zs_ptrtbl_nextblk); 290 291 (void) printf("\t\tZAP entries: %llu\n", 292 (u_longlong_t)zs.zs_num_entries); 293 (void) printf("\t\tLeaf blocks: %llu\n", 294 (u_longlong_t)zs.zs_num_leafs); 295 (void) printf("\t\tTotal blocks: %llu\n", 296 (u_longlong_t)zs.zs_num_blocks); 297 (void) printf("\t\tzap_block_type: 0x%llx\n", 298 (u_longlong_t)zs.zs_block_type); 299 (void) printf("\t\tzap_magic: 0x%llx\n", 300 (u_longlong_t)zs.zs_magic); 301 (void) printf("\t\tzap_salt: 0x%llx\n", 302 (u_longlong_t)zs.zs_salt); 303 304 (void) printf("\t\tLeafs with 2^n pointers:\n"); 305 dump_zap_histogram(zs.zs_leafs_with_2n_pointers); 306 307 (void) printf("\t\tBlocks with n*5 entries:\n"); 308 dump_zap_histogram(zs.zs_blocks_with_n5_entries); 309 310 (void) printf("\t\tBlocks n/10 full:\n"); 311 dump_zap_histogram(zs.zs_blocks_n_tenths_full); 312 313 (void) printf("\t\tEntries with n chunks:\n"); 314 dump_zap_histogram(zs.zs_entries_using_n_chunks); 315 316 (void) printf("\t\tBuckets with n entries:\n"); 317 dump_zap_histogram(zs.zs_buckets_with_n_entries); 318 } 319 320 /*ARGSUSED*/ 321 static void 322 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 323 { 324 } 325 326 /*ARGSUSED*/ 327 void 328 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 329 { 330 } 331 332 /*ARGSUSED*/ 333 static void 334 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 335 { 336 } 337 338 /*ARGSUSED*/ 339 static void 340 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 341 { 342 zap_cursor_t zc; 343 zap_attribute_t attr; 344 void *prop; 345 int i; 346 347 dump_zap_stats(os, object); 348 (void) printf("\n"); 349 350 for (zap_cursor_init(&zc, os, object); 351 zap_cursor_retrieve(&zc, &attr) == 0; 352 zap_cursor_advance(&zc)) { 353 (void) printf("\t\t%s = ", attr.za_name); 354 if (attr.za_num_integers == 0) { 355 (void) printf("\n"); 356 continue; 357 } 358 prop = umem_zalloc(attr.za_num_integers * 359 attr.za_integer_length, UMEM_NOFAIL); 360 (void) zap_lookup(os, object, attr.za_name, 361 attr.za_integer_length, attr.za_num_integers, prop); 362 if (attr.za_integer_length == 1) { 363 (void) printf("%s", (char *)prop); 364 } else { 365 for (i = 0; i < attr.za_num_integers; i++) { 366 switch (attr.za_integer_length) { 367 case 2: 368 (void) printf("%u ", 369 ((uint16_t *)prop)[i]); 370 break; 371 case 4: 372 (void) printf("%u ", 373 ((uint32_t *)prop)[i]); 374 break; 375 case 8: 376 (void) printf("%lld ", 377 (u_longlong_t)((int64_t *)prop)[i]); 378 break; 379 } 380 } 381 } 382 (void) printf("\n"); 383 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 384 } 385 zap_cursor_fini(&zc); 386 } 387 388 /*ARGSUSED*/ 389 static void 390 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 391 { 392 zap_cursor_t zc; 393 zap_attribute_t attr; 394 const char *typenames[] = { 395 /* 0 */ "not specified", 396 /* 1 */ "FIFO", 397 /* 2 */ "Character Device", 398 /* 3 */ "3 (invalid)", 399 /* 4 */ "Directory", 400 /* 5 */ "5 (invalid)", 401 /* 6 */ "Block Device", 402 /* 7 */ "7 (invalid)", 403 /* 8 */ "Regular File", 404 /* 9 */ "9 (invalid)", 405 /* 10 */ "Symbolic Link", 406 /* 11 */ "11 (invalid)", 407 /* 12 */ "Socket", 408 /* 13 */ "Door", 409 /* 14 */ "Event Port", 410 /* 15 */ "15 (invalid)", 411 }; 412 413 dump_zap_stats(os, object); 414 (void) printf("\n"); 415 416 for (zap_cursor_init(&zc, os, object); 417 zap_cursor_retrieve(&zc, &attr) == 0; 418 zap_cursor_advance(&zc)) { 419 (void) printf("\t\t%s = %lld (type: %s)\n", 420 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 421 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 422 } 423 zap_cursor_fini(&zc); 424 } 425 426 static void 427 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm) 428 { 429 uint64_t alloc, offset, entry; 430 uint8_t mapshift = sm->sm_shift; 431 uint64_t mapstart = sm->sm_start; 432 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 433 "INVALID", "INVALID", "INVALID", "INVALID" }; 434 435 if (smo->smo_object == 0) 436 return; 437 438 /* 439 * Print out the freelist entries in both encoded and decoded form. 440 */ 441 alloc = 0; 442 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) { 443 VERIFY(0 == dmu_read(os, smo->smo_object, offset, 444 sizeof (entry), &entry)); 445 if (SM_DEBUG_DECODE(entry)) { 446 (void) printf("\t\t[%4llu] %s: txg %llu, pass %llu\n", 447 (u_longlong_t)(offset / sizeof (entry)), 448 ddata[SM_DEBUG_ACTION_DECODE(entry)], 449 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 450 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 451 } else { 452 (void) printf("\t\t[%4llu] %c range:" 453 " %08llx-%08llx size: %06llx\n", 454 (u_longlong_t)(offset / sizeof (entry)), 455 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 456 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 457 mapshift) + mapstart), 458 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 459 mapshift) + mapstart + (SM_RUN_DECODE(entry) << 460 mapshift)), 461 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 462 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 463 alloc += SM_RUN_DECODE(entry) << mapshift; 464 else 465 alloc -= SM_RUN_DECODE(entry) << mapshift; 466 } 467 } 468 if (alloc != smo->smo_alloc) { 469 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 470 "with space map summary (%llu)\n", 471 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc); 472 } 473 } 474 475 static void 476 dump_metaslab(metaslab_t *msp) 477 { 478 char freebuf[5]; 479 space_map_obj_t *smo = &msp->ms_smo; 480 vdev_t *vd = msp->ms_group->mg_vd; 481 spa_t *spa = vd->vdev_spa; 482 483 nicenum(msp->ms_map.sm_size - smo->smo_alloc, freebuf); 484 485 if (dump_opt['d'] <= 5) { 486 (void) printf("\t%10llx %10llu %5s\n", 487 (u_longlong_t)msp->ms_map.sm_start, 488 (u_longlong_t)smo->smo_object, 489 freebuf); 490 return; 491 } 492 493 (void) printf( 494 "\tvdev %llu offset %08llx spacemap %4llu free %5s\n", 495 (u_longlong_t)vd->vdev_id, (u_longlong_t)msp->ms_map.sm_start, 496 (u_longlong_t)smo->smo_object, freebuf); 497 498 ASSERT(msp->ms_map.sm_size == (1ULL << vd->vdev_ms_shift)); 499 500 dump_spacemap(spa->spa_meta_objset, smo, &msp->ms_map); 501 } 502 503 static void 504 dump_metaslabs(spa_t *spa) 505 { 506 vdev_t *rvd = spa->spa_root_vdev; 507 vdev_t *vd; 508 int c, m; 509 510 (void) printf("\nMetaslabs:\n"); 511 512 for (c = 0; c < rvd->vdev_children; c++) { 513 vd = rvd->vdev_child[c]; 514 515 (void) printf("\n vdev %llu\n\n", (u_longlong_t)vd->vdev_id); 516 517 if (dump_opt['d'] <= 5) { 518 (void) printf("\t%10s %10s %5s\n", 519 "offset", "spacemap", "free"); 520 (void) printf("\t%10s %10s %5s\n", 521 "------", "--------", "----"); 522 } 523 for (m = 0; m < vd->vdev_ms_count; m++) 524 dump_metaslab(vd->vdev_ms[m]); 525 (void) printf("\n"); 526 } 527 } 528 529 static void 530 dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size) 531 { 532 char *prefix = (void *)sm; 533 534 (void) printf("%s [%llu,%llu) length %llu\n", 535 prefix, 536 (u_longlong_t)start, 537 (u_longlong_t)(start + size), 538 (u_longlong_t)(size)); 539 } 540 541 static void 542 dump_dtl(vdev_t *vd, int indent) 543 { 544 spa_t *spa = vd->vdev_spa; 545 boolean_t required; 546 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 547 char prefix[256]; 548 549 spa_vdev_state_enter(spa); 550 required = vdev_dtl_required(vd); 551 (void) spa_vdev_state_exit(spa, NULL, 0); 552 553 if (indent == 0) 554 (void) printf("\nDirty time logs:\n\n"); 555 556 (void) printf("\t%*s%s [%s]\n", indent, "", 557 vd->vdev_path ? vd->vdev_path : 558 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 559 required ? "DTL-required" : "DTL-expendable"); 560 561 for (int t = 0; t < DTL_TYPES; t++) { 562 space_map_t *sm = &vd->vdev_dtl[t]; 563 if (sm->sm_space == 0) 564 continue; 565 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 566 indent + 2, "", name[t]); 567 mutex_enter(sm->sm_lock); 568 space_map_walk(sm, dump_dtl_seg, (void *)prefix); 569 mutex_exit(sm->sm_lock); 570 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 571 dump_spacemap(spa->spa_meta_objset, 572 &vd->vdev_dtl_smo, sm); 573 } 574 575 for (int c = 0; c < vd->vdev_children; c++) 576 dump_dtl(vd->vdev_child[c], indent + 4); 577 } 578 579 /*ARGSUSED*/ 580 static void 581 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 582 { 583 } 584 585 static uint64_t 586 blkid2offset(const dnode_phys_t *dnp, int level, uint64_t blkid) 587 { 588 if (level < 0) 589 return (blkid); 590 591 return ((blkid << (level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 592 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 593 } 594 595 static void 596 sprintf_blkptr_compact(char *blkbuf, blkptr_t *bp, int alldvas) 597 { 598 dva_t *dva = bp->blk_dva; 599 int ndvas = alldvas ? BP_GET_NDVAS(bp) : 1; 600 int i; 601 602 blkbuf[0] = '\0'; 603 604 for (i = 0; i < ndvas; i++) 605 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", 606 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 607 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 608 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 609 610 (void) sprintf(blkbuf + strlen(blkbuf), "%llxL/%llxP F=%llu B=%llu", 611 (u_longlong_t)BP_GET_LSIZE(bp), 612 (u_longlong_t)BP_GET_PSIZE(bp), 613 (u_longlong_t)bp->blk_fill, 614 (u_longlong_t)bp->blk_birth); 615 } 616 617 static void 618 print_indirect(blkptr_t *bp, const zbookmark_t *zb, 619 const dnode_phys_t *dnp) 620 { 621 char blkbuf[BP_SPRINTF_LEN]; 622 int l; 623 624 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 625 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 626 627 (void) printf("%16llx ", 628 (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid)); 629 630 ASSERT(zb->zb_level >= 0); 631 632 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 633 if (l == zb->zb_level) { 634 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 635 } else { 636 (void) printf(" "); 637 } 638 } 639 640 sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0); 641 (void) printf("%s\n", blkbuf); 642 } 643 644 #define SET_BOOKMARK(zb, objset, object, level, blkid) \ 645 { \ 646 (zb)->zb_objset = objset; \ 647 (zb)->zb_object = object; \ 648 (zb)->zb_level = level; \ 649 (zb)->zb_blkid = blkid; \ 650 } 651 652 static int 653 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 654 blkptr_t *bp, const zbookmark_t *zb) 655 { 656 int err; 657 658 if (bp->blk_birth == 0) 659 return (0); 660 661 print_indirect(bp, zb, dnp); 662 663 if (BP_GET_LEVEL(bp) > 0) { 664 uint32_t flags = ARC_WAIT; 665 int i; 666 blkptr_t *cbp; 667 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 668 arc_buf_t *buf; 669 uint64_t fill = 0; 670 671 err = arc_read_nolock(NULL, spa, bp, arc_getbuf_func, &buf, 672 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 673 if (err) 674 return (err); 675 676 /* recursively visit blocks below this */ 677 cbp = buf->b_data; 678 for (i = 0; i < epb; i++, cbp++) { 679 zbookmark_t czb; 680 681 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 682 zb->zb_level - 1, 683 zb->zb_blkid * epb + i); 684 err = visit_indirect(spa, dnp, cbp, &czb); 685 if (err) 686 break; 687 fill += cbp->blk_fill; 688 } 689 if (!err) 690 ASSERT3U(fill, ==, bp->blk_fill); 691 (void) arc_buf_remove_ref(buf, &buf); 692 } 693 694 return (err); 695 } 696 697 /*ARGSUSED*/ 698 static void 699 dump_indirect(dnode_t *dn) 700 { 701 dnode_phys_t *dnp = dn->dn_phys; 702 int j; 703 zbookmark_t czb; 704 705 (void) printf("Indirect blocks:\n"); 706 707 SET_BOOKMARK(&czb, dmu_objset_id(&dn->dn_objset->os), 708 dn->dn_object, dnp->dn_nlevels - 1, 0); 709 for (j = 0; j < dnp->dn_nblkptr; j++) { 710 czb.zb_blkid = j; 711 (void) visit_indirect(dmu_objset_spa(&dn->dn_objset->os), dnp, 712 &dnp->dn_blkptr[j], &czb); 713 } 714 715 (void) printf("\n"); 716 } 717 718 /*ARGSUSED*/ 719 static void 720 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 721 { 722 dsl_dir_phys_t *dd = data; 723 time_t crtime; 724 char nice[6]; 725 726 if (dd == NULL) 727 return; 728 729 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 730 731 crtime = dd->dd_creation_time; 732 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 733 (void) printf("\t\thead_dataset_obj = %llu\n", 734 (u_longlong_t)dd->dd_head_dataset_obj); 735 (void) printf("\t\tparent_dir_obj = %llu\n", 736 (u_longlong_t)dd->dd_parent_obj); 737 (void) printf("\t\torigin_obj = %llu\n", 738 (u_longlong_t)dd->dd_origin_obj); 739 (void) printf("\t\tchild_dir_zapobj = %llu\n", 740 (u_longlong_t)dd->dd_child_dir_zapobj); 741 nicenum(dd->dd_used_bytes, nice); 742 (void) printf("\t\tused_bytes = %s\n", nice); 743 nicenum(dd->dd_compressed_bytes, nice); 744 (void) printf("\t\tcompressed_bytes = %s\n", nice); 745 nicenum(dd->dd_uncompressed_bytes, nice); 746 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 747 nicenum(dd->dd_quota, nice); 748 (void) printf("\t\tquota = %s\n", nice); 749 nicenum(dd->dd_reserved, nice); 750 (void) printf("\t\treserved = %s\n", nice); 751 (void) printf("\t\tprops_zapobj = %llu\n", 752 (u_longlong_t)dd->dd_props_zapobj); 753 (void) printf("\t\tdeleg_zapobj = %llu\n", 754 (u_longlong_t)dd->dd_deleg_zapobj); 755 (void) printf("\t\tflags = %llx\n", 756 (u_longlong_t)dd->dd_flags); 757 758 #define DO(which) \ 759 nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 760 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 761 DO(HEAD); 762 DO(SNAP); 763 DO(CHILD); 764 DO(CHILD_RSRV); 765 DO(REFRSRV); 766 #undef DO 767 } 768 769 /*ARGSUSED*/ 770 static void 771 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 772 { 773 dsl_dataset_phys_t *ds = data; 774 time_t crtime; 775 char used[6], compressed[6], uncompressed[6], unique[6]; 776 char blkbuf[BP_SPRINTF_LEN]; 777 778 if (ds == NULL) 779 return; 780 781 ASSERT(size == sizeof (*ds)); 782 crtime = ds->ds_creation_time; 783 nicenum(ds->ds_used_bytes, used); 784 nicenum(ds->ds_compressed_bytes, compressed); 785 nicenum(ds->ds_uncompressed_bytes, uncompressed); 786 nicenum(ds->ds_unique_bytes, unique); 787 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ds->ds_bp); 788 789 (void) printf("\t\tdir_obj = %llu\n", 790 (u_longlong_t)ds->ds_dir_obj); 791 (void) printf("\t\tprev_snap_obj = %llu\n", 792 (u_longlong_t)ds->ds_prev_snap_obj); 793 (void) printf("\t\tprev_snap_txg = %llu\n", 794 (u_longlong_t)ds->ds_prev_snap_txg); 795 (void) printf("\t\tnext_snap_obj = %llu\n", 796 (u_longlong_t)ds->ds_next_snap_obj); 797 (void) printf("\t\tsnapnames_zapobj = %llu\n", 798 (u_longlong_t)ds->ds_snapnames_zapobj); 799 (void) printf("\t\tnum_children = %llu\n", 800 (u_longlong_t)ds->ds_num_children); 801 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 802 (void) printf("\t\tcreation_txg = %llu\n", 803 (u_longlong_t)ds->ds_creation_txg); 804 (void) printf("\t\tdeadlist_obj = %llu\n", 805 (u_longlong_t)ds->ds_deadlist_obj); 806 (void) printf("\t\tused_bytes = %s\n", used); 807 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 808 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 809 (void) printf("\t\tunique = %s\n", unique); 810 (void) printf("\t\tfsid_guid = %llu\n", 811 (u_longlong_t)ds->ds_fsid_guid); 812 (void) printf("\t\tguid = %llu\n", 813 (u_longlong_t)ds->ds_guid); 814 (void) printf("\t\tflags = %llx\n", 815 (u_longlong_t)ds->ds_flags); 816 (void) printf("\t\tnext_clones_obj = %llu\n", 817 (u_longlong_t)ds->ds_next_clones_obj); 818 (void) printf("\t\tprops_obj = %llu\n", 819 (u_longlong_t)ds->ds_props_obj); 820 (void) printf("\t\tbp = %s\n", blkbuf); 821 } 822 823 static void 824 dump_bplist(objset_t *mos, uint64_t object, char *name) 825 { 826 bplist_t bpl = { 0 }; 827 blkptr_t blk, *bp = &blk; 828 uint64_t itor = 0; 829 char bytes[6]; 830 char comp[6]; 831 char uncomp[6]; 832 833 if (dump_opt['d'] < 3) 834 return; 835 836 mutex_init(&bpl.bpl_lock, NULL, MUTEX_DEFAULT, NULL); 837 VERIFY(0 == bplist_open(&bpl, mos, object)); 838 if (bplist_empty(&bpl)) { 839 bplist_close(&bpl); 840 mutex_destroy(&bpl.bpl_lock); 841 return; 842 } 843 844 nicenum(bpl.bpl_phys->bpl_bytes, bytes); 845 if (bpl.bpl_dbuf->db_size == sizeof (bplist_phys_t)) { 846 nicenum(bpl.bpl_phys->bpl_comp, comp); 847 nicenum(bpl.bpl_phys->bpl_uncomp, uncomp); 848 (void) printf("\n %s: %llu entries, %s (%s/%s comp)\n", 849 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, 850 bytes, comp, uncomp); 851 } else { 852 (void) printf("\n %s: %llu entries, %s\n", 853 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, bytes); 854 } 855 856 if (dump_opt['d'] < 5) { 857 bplist_close(&bpl); 858 mutex_destroy(&bpl.bpl_lock); 859 return; 860 } 861 862 (void) printf("\n"); 863 864 while (bplist_iterate(&bpl, &itor, bp) == 0) { 865 char blkbuf[BP_SPRINTF_LEN]; 866 867 ASSERT(bp->blk_birth != 0); 868 sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0); 869 (void) printf("\tItem %3llu: %s\n", 870 (u_longlong_t)itor - 1, blkbuf); 871 } 872 873 bplist_close(&bpl); 874 mutex_destroy(&bpl.bpl_lock); 875 } 876 877 static avl_tree_t idx_tree; 878 static avl_tree_t domain_tree; 879 static boolean_t fuid_table_loaded; 880 881 static void 882 fuid_table_destroy() 883 { 884 if (fuid_table_loaded) { 885 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 886 fuid_table_loaded = B_FALSE; 887 } 888 } 889 890 /* 891 * print uid or gid information. 892 * For normal POSIX id just the id is printed in decimal format. 893 * For CIFS files with FUID the fuid is printed in hex followed by 894 * the doman-rid string. 895 */ 896 static void 897 print_idstr(uint64_t id, const char *id_type) 898 { 899 if (FUID_INDEX(id)) { 900 char *domain; 901 902 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 903 (void) printf("\t%s %llx [%s-%d]\n", id_type, 904 (u_longlong_t)id, domain, (int)FUID_RID(id)); 905 } else { 906 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 907 } 908 909 } 910 911 static void 912 dump_uidgid(objset_t *os, znode_phys_t *zp) 913 { 914 uint32_t uid_idx, gid_idx; 915 916 uid_idx = FUID_INDEX(zp->zp_uid); 917 gid_idx = FUID_INDEX(zp->zp_gid); 918 919 /* Load domain table, if not already loaded */ 920 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 921 uint64_t fuid_obj; 922 923 /* first find the fuid object. It lives in the master node */ 924 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 925 8, 1, &fuid_obj) == 0); 926 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 927 (void) zfs_fuid_table_load(os, fuid_obj, 928 &idx_tree, &domain_tree); 929 fuid_table_loaded = B_TRUE; 930 } 931 932 print_idstr(zp->zp_uid, "uid"); 933 print_idstr(zp->zp_gid, "gid"); 934 } 935 936 /*ARGSUSED*/ 937 static void 938 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 939 { 940 znode_phys_t *zp = data; 941 time_t z_crtime, z_atime, z_mtime, z_ctime; 942 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 943 int error; 944 945 ASSERT(size >= sizeof (znode_phys_t)); 946 947 error = zfs_obj_to_path(os, object, path, sizeof (path)); 948 if (error != 0) { 949 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 950 (u_longlong_t)object); 951 } 952 953 if (dump_opt['d'] < 3) { 954 (void) printf("\t%s\n", path); 955 return; 956 } 957 958 z_crtime = (time_t)zp->zp_crtime[0]; 959 z_atime = (time_t)zp->zp_atime[0]; 960 z_mtime = (time_t)zp->zp_mtime[0]; 961 z_ctime = (time_t)zp->zp_ctime[0]; 962 963 (void) printf("\tpath %s\n", path); 964 dump_uidgid(os, zp); 965 (void) printf("\tatime %s", ctime(&z_atime)); 966 (void) printf("\tmtime %s", ctime(&z_mtime)); 967 (void) printf("\tctime %s", ctime(&z_ctime)); 968 (void) printf("\tcrtime %s", ctime(&z_crtime)); 969 (void) printf("\tgen %llu\n", (u_longlong_t)zp->zp_gen); 970 (void) printf("\tmode %llo\n", (u_longlong_t)zp->zp_mode); 971 (void) printf("\tsize %llu\n", (u_longlong_t)zp->zp_size); 972 (void) printf("\tparent %llu\n", (u_longlong_t)zp->zp_parent); 973 (void) printf("\tlinks %llu\n", (u_longlong_t)zp->zp_links); 974 (void) printf("\txattr %llu\n", (u_longlong_t)zp->zp_xattr); 975 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)zp->zp_rdev); 976 } 977 978 /*ARGSUSED*/ 979 static void 980 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 981 { 982 } 983 984 /*ARGSUSED*/ 985 static void 986 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 987 { 988 } 989 990 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES] = { 991 dump_none, /* unallocated */ 992 dump_zap, /* object directory */ 993 dump_uint64, /* object array */ 994 dump_none, /* packed nvlist */ 995 dump_packed_nvlist, /* packed nvlist size */ 996 dump_none, /* bplist */ 997 dump_none, /* bplist header */ 998 dump_none, /* SPA space map header */ 999 dump_none, /* SPA space map */ 1000 dump_none, /* ZIL intent log */ 1001 dump_dnode, /* DMU dnode */ 1002 dump_dmu_objset, /* DMU objset */ 1003 dump_dsl_dir, /* DSL directory */ 1004 dump_zap, /* DSL directory child map */ 1005 dump_zap, /* DSL dataset snap map */ 1006 dump_zap, /* DSL props */ 1007 dump_dsl_dataset, /* DSL dataset */ 1008 dump_znode, /* ZFS znode */ 1009 dump_acl, /* ZFS V0 ACL */ 1010 dump_uint8, /* ZFS plain file */ 1011 dump_zpldir, /* ZFS directory */ 1012 dump_zap, /* ZFS master node */ 1013 dump_zap, /* ZFS delete queue */ 1014 dump_uint8, /* zvol object */ 1015 dump_zap, /* zvol prop */ 1016 dump_uint8, /* other uint8[] */ 1017 dump_uint64, /* other uint64[] */ 1018 dump_zap, /* other ZAP */ 1019 dump_zap, /* persistent error log */ 1020 dump_uint8, /* SPA history */ 1021 dump_uint64, /* SPA history offsets */ 1022 dump_zap, /* Pool properties */ 1023 dump_zap, /* DSL permissions */ 1024 dump_acl, /* ZFS ACL */ 1025 dump_uint8, /* ZFS SYSACL */ 1026 dump_none, /* FUID nvlist */ 1027 dump_packed_nvlist, /* FUID nvlist size */ 1028 dump_zap, /* DSL dataset next clones */ 1029 dump_zap, /* DSL scrub queue */ 1030 dump_zap, /* ZFS user/group used */ 1031 dump_zap, /* ZFS user/group quota */ 1032 }; 1033 1034 static void 1035 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1036 { 1037 dmu_buf_t *db = NULL; 1038 dmu_object_info_t doi; 1039 dnode_t *dn; 1040 void *bonus = NULL; 1041 size_t bsize = 0; 1042 char iblk[6], dblk[6], lsize[6], asize[6], bonus_size[6], segsize[6]; 1043 char aux[50]; 1044 int error; 1045 1046 if (*print_header) { 1047 (void) printf("\n Object lvl iblk dblk lsize" 1048 " asize type\n"); 1049 *print_header = 0; 1050 } 1051 1052 if (object == 0) { 1053 dn = os->os->os_meta_dnode; 1054 } else { 1055 error = dmu_bonus_hold(os, object, FTAG, &db); 1056 if (error) 1057 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1058 object, error); 1059 bonus = db->db_data; 1060 bsize = db->db_size; 1061 dn = ((dmu_buf_impl_t *)db)->db_dnode; 1062 } 1063 dmu_object_info_from_dnode(dn, &doi); 1064 1065 nicenum(doi.doi_metadata_block_size, iblk); 1066 nicenum(doi.doi_data_block_size, dblk); 1067 nicenum(doi.doi_data_block_size * (doi.doi_max_block_offset + 1), 1068 lsize); 1069 nicenum(doi.doi_physical_blks << 9, asize); 1070 nicenum(doi.doi_bonus_size, bonus_size); 1071 1072 aux[0] = '\0'; 1073 1074 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1075 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1076 zio_checksum_table[doi.doi_checksum].ci_name); 1077 } 1078 1079 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1080 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1081 zio_compress_table[doi.doi_compress].ci_name); 1082 } 1083 1084 (void) printf("%10lld %3u %5s %5s %5s %5s %s%s\n", 1085 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, lsize, 1086 asize, dmu_ot[doi.doi_type].ot_name, aux); 1087 1088 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1089 (void) printf("%10s %3s %5s %5s %5s %5s %s\n", 1090 "", "", "", "", bonus_size, "bonus", 1091 dmu_ot[doi.doi_bonus_type].ot_name); 1092 } 1093 1094 if (verbosity >= 4) { 1095 (void) printf("\tdnode flags: %s%s\n", 1096 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1097 "USED_BYTES " : "", 1098 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1099 "USERUSED_ACCOUNTED " : ""); 1100 (void) printf("\tdnode maxblkid: %llu\n", 1101 (longlong_t)dn->dn_phys->dn_maxblkid); 1102 1103 object_viewer[doi.doi_bonus_type](os, object, bonus, bsize); 1104 object_viewer[doi.doi_type](os, object, NULL, 0); 1105 *print_header = 1; 1106 } 1107 1108 if (verbosity >= 5) 1109 dump_indirect(dn); 1110 1111 if (verbosity >= 5) { 1112 /* 1113 * Report the list of segments that comprise the object. 1114 */ 1115 uint64_t start = 0; 1116 uint64_t end; 1117 uint64_t blkfill = 1; 1118 int minlvl = 1; 1119 1120 if (dn->dn_type == DMU_OT_DNODE) { 1121 minlvl = 0; 1122 blkfill = DNODES_PER_BLOCK; 1123 } 1124 1125 for (;;) { 1126 error = dnode_next_offset(dn, 1127 0, &start, minlvl, blkfill, 0); 1128 if (error) 1129 break; 1130 end = start; 1131 error = dnode_next_offset(dn, 1132 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1133 nicenum(end - start, segsize); 1134 (void) printf("\t\tsegment [%016llx, %016llx)" 1135 " size %5s\n", (u_longlong_t)start, 1136 (u_longlong_t)end, segsize); 1137 if (error) 1138 break; 1139 start = end; 1140 } 1141 } 1142 1143 if (db != NULL) 1144 dmu_buf_rele(db, FTAG); 1145 } 1146 1147 static char *objset_types[DMU_OST_NUMTYPES] = { 1148 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1149 1150 static void 1151 dump_dir(objset_t *os) 1152 { 1153 dmu_objset_stats_t dds; 1154 uint64_t object, object_count; 1155 uint64_t refdbytes, usedobjs, scratch; 1156 char numbuf[8]; 1157 char blkbuf[BP_SPRINTF_LEN + 20]; 1158 char osname[MAXNAMELEN]; 1159 char *type = "UNKNOWN"; 1160 int verbosity = dump_opt['d']; 1161 int print_header = 1; 1162 int i, error; 1163 1164 dmu_objset_fast_stat(os, &dds); 1165 1166 if (dds.dds_type < DMU_OST_NUMTYPES) 1167 type = objset_types[dds.dds_type]; 1168 1169 if (dds.dds_type == DMU_OST_META) { 1170 dds.dds_creation_txg = TXG_INITIAL; 1171 usedobjs = os->os->os_rootbp->blk_fill; 1172 refdbytes = os->os->os_spa->spa_dsl_pool-> 1173 dp_mos_dir->dd_phys->dd_used_bytes; 1174 } else { 1175 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1176 } 1177 1178 ASSERT3U(usedobjs, ==, os->os->os_rootbp->blk_fill); 1179 1180 nicenum(refdbytes, numbuf); 1181 1182 if (verbosity >= 4) { 1183 (void) sprintf(blkbuf + strlen(blkbuf), ", rootbp "); 1184 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), 1185 BP_SPRINTF_LEN - strlen(blkbuf), os->os->os_rootbp); 1186 } else { 1187 blkbuf[0] = '\0'; 1188 } 1189 1190 dmu_objset_name(os, osname); 1191 1192 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1193 "%s, %llu objects%s\n", 1194 osname, type, (u_longlong_t)dmu_objset_id(os), 1195 (u_longlong_t)dds.dds_creation_txg, 1196 numbuf, (u_longlong_t)usedobjs, blkbuf); 1197 1198 dump_intent_log(dmu_objset_zil(os)); 1199 1200 if (dmu_objset_ds(os) != NULL) 1201 dump_bplist(dmu_objset_pool(os)->dp_meta_objset, 1202 dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist"); 1203 1204 if (verbosity < 2) 1205 return; 1206 1207 if (os->os->os_rootbp->blk_birth == 0) 1208 return; 1209 1210 if (zopt_objects != 0) { 1211 for (i = 0; i < zopt_objects; i++) 1212 dump_object(os, zopt_object[i], verbosity, 1213 &print_header); 1214 (void) printf("\n"); 1215 return; 1216 } 1217 1218 dump_object(os, 0, verbosity, &print_header); 1219 object_count = 0; 1220 if (os->os->os_userused_dnode && 1221 os->os->os_userused_dnode->dn_type != 0) { 1222 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1223 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1224 } 1225 1226 object = 0; 1227 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1228 dump_object(os, object, verbosity, &print_header); 1229 object_count++; 1230 } 1231 1232 ASSERT3U(object_count, ==, usedobjs); 1233 1234 (void) printf("\n"); 1235 1236 if (error != ESRCH) { 1237 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1238 abort(); 1239 } 1240 } 1241 1242 static void 1243 dump_uberblock(uberblock_t *ub) 1244 { 1245 time_t timestamp = ub->ub_timestamp; 1246 1247 (void) printf("Uberblock\n\n"); 1248 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1249 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1250 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1251 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1252 (void) printf("\ttimestamp = %llu UTC = %s", 1253 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1254 if (dump_opt['u'] >= 3) { 1255 char blkbuf[BP_SPRINTF_LEN]; 1256 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ub->ub_rootbp); 1257 (void) printf("\trootbp = %s\n", blkbuf); 1258 } 1259 (void) printf("\n"); 1260 } 1261 1262 static void 1263 dump_config(const char *pool) 1264 { 1265 spa_t *spa = NULL; 1266 1267 mutex_enter(&spa_namespace_lock); 1268 while ((spa = spa_next(spa)) != NULL) { 1269 if (pool == NULL) 1270 (void) printf("%s\n", spa_name(spa)); 1271 if (pool == NULL || strcmp(pool, spa_name(spa)) == 0) 1272 dump_nvlist(spa->spa_config, 4); 1273 } 1274 mutex_exit(&spa_namespace_lock); 1275 } 1276 1277 static void 1278 dump_cachefile(const char *cachefile) 1279 { 1280 int fd; 1281 struct stat64 statbuf; 1282 char *buf; 1283 nvlist_t *config; 1284 1285 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1286 (void) printf("cannot open '%s': %s\n", cachefile, 1287 strerror(errno)); 1288 exit(1); 1289 } 1290 1291 if (fstat64(fd, &statbuf) != 0) { 1292 (void) printf("failed to stat '%s': %s\n", cachefile, 1293 strerror(errno)); 1294 exit(1); 1295 } 1296 1297 if ((buf = malloc(statbuf.st_size)) == NULL) { 1298 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1299 (u_longlong_t)statbuf.st_size); 1300 exit(1); 1301 } 1302 1303 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1304 (void) fprintf(stderr, "failed to read %llu bytes\n", 1305 (u_longlong_t)statbuf.st_size); 1306 exit(1); 1307 } 1308 1309 (void) close(fd); 1310 1311 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1312 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1313 exit(1); 1314 } 1315 1316 free(buf); 1317 1318 dump_nvlist(config, 0); 1319 1320 nvlist_free(config); 1321 } 1322 1323 static void 1324 dump_label(const char *dev) 1325 { 1326 int fd; 1327 vdev_label_t label; 1328 char *buf = label.vl_vdev_phys.vp_nvlist; 1329 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1330 struct stat64 statbuf; 1331 uint64_t psize; 1332 int l; 1333 1334 if ((fd = open64(dev, O_RDONLY)) < 0) { 1335 (void) printf("cannot open '%s': %s\n", dev, strerror(errno)); 1336 exit(1); 1337 } 1338 1339 if (fstat64(fd, &statbuf) != 0) { 1340 (void) printf("failed to stat '%s': %s\n", dev, 1341 strerror(errno)); 1342 exit(1); 1343 } 1344 1345 psize = statbuf.st_size; 1346 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 1347 1348 for (l = 0; l < VDEV_LABELS; l++) { 1349 1350 nvlist_t *config = NULL; 1351 1352 (void) printf("--------------------------------------------\n"); 1353 (void) printf("LABEL %d\n", l); 1354 (void) printf("--------------------------------------------\n"); 1355 1356 if (pread64(fd, &label, sizeof (label), 1357 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 1358 (void) printf("failed to read label %d\n", l); 1359 continue; 1360 } 1361 1362 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 1363 (void) printf("failed to unpack label %d\n", l); 1364 continue; 1365 } 1366 dump_nvlist(config, 4); 1367 nvlist_free(config); 1368 } 1369 } 1370 1371 /*ARGSUSED*/ 1372 static int 1373 dump_one_dir(char *dsname, void *arg) 1374 { 1375 int error; 1376 objset_t *os; 1377 1378 error = dmu_objset_open(dsname, DMU_OST_ANY, 1379 DS_MODE_USER | DS_MODE_READONLY, &os); 1380 if (error) { 1381 (void) printf("Could not open %s\n", dsname); 1382 return (0); 1383 } 1384 dump_dir(os); 1385 dmu_objset_close(os); 1386 fuid_table_destroy(); 1387 return (0); 1388 } 1389 1390 static void 1391 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size) 1392 { 1393 vdev_t *vd = sm->sm_ppd; 1394 1395 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 1396 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 1397 } 1398 1399 /* ARGSUSED */ 1400 static void 1401 zdb_space_map_load(space_map_t *sm) 1402 { 1403 } 1404 1405 static void 1406 zdb_space_map_unload(space_map_t *sm) 1407 { 1408 space_map_vacate(sm, zdb_leak, sm); 1409 } 1410 1411 /* ARGSUSED */ 1412 static void 1413 zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size) 1414 { 1415 } 1416 1417 static space_map_ops_t zdb_space_map_ops = { 1418 zdb_space_map_load, 1419 zdb_space_map_unload, 1420 NULL, /* alloc */ 1421 zdb_space_map_claim, 1422 NULL /* free */ 1423 }; 1424 1425 static void 1426 zdb_leak_init(spa_t *spa) 1427 { 1428 vdev_t *rvd = spa->spa_root_vdev; 1429 1430 for (int c = 0; c < rvd->vdev_children; c++) { 1431 vdev_t *vd = rvd->vdev_child[c]; 1432 for (int m = 0; m < vd->vdev_ms_count; m++) { 1433 metaslab_t *msp = vd->vdev_ms[m]; 1434 mutex_enter(&msp->ms_lock); 1435 VERIFY(space_map_load(&msp->ms_map, &zdb_space_map_ops, 1436 SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset) == 0); 1437 msp->ms_map.sm_ppd = vd; 1438 mutex_exit(&msp->ms_lock); 1439 } 1440 } 1441 } 1442 1443 static void 1444 zdb_leak_fini(spa_t *spa) 1445 { 1446 vdev_t *rvd = spa->spa_root_vdev; 1447 1448 for (int c = 0; c < rvd->vdev_children; c++) { 1449 vdev_t *vd = rvd->vdev_child[c]; 1450 for (int m = 0; m < vd->vdev_ms_count; m++) { 1451 metaslab_t *msp = vd->vdev_ms[m]; 1452 mutex_enter(&msp->ms_lock); 1453 space_map_unload(&msp->ms_map); 1454 mutex_exit(&msp->ms_lock); 1455 } 1456 } 1457 } 1458 1459 /* 1460 * Verify that the sum of the sizes of all blocks in the pool adds up 1461 * to the SPA's sa_alloc total. 1462 */ 1463 typedef struct zdb_blkstats { 1464 uint64_t zb_asize; 1465 uint64_t zb_lsize; 1466 uint64_t zb_psize; 1467 uint64_t zb_count; 1468 } zdb_blkstats_t; 1469 1470 #define DMU_OT_DEFERRED DMU_OT_NONE 1471 #define DMU_OT_TOTAL DMU_OT_NUMTYPES 1472 1473 #define ZB_TOTAL DN_MAX_LEVELS 1474 1475 typedef struct zdb_cb { 1476 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1]; 1477 uint64_t zcb_errors[256]; 1478 int zcb_readfails; 1479 int zcb_haderrors; 1480 } zdb_cb_t; 1481 1482 static void 1483 zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, dmu_object_type_t type) 1484 { 1485 for (int i = 0; i < 4; i++) { 1486 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 1487 int t = (i & 1) ? type : DMU_OT_TOTAL; 1488 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 1489 1490 zb->zb_asize += BP_GET_ASIZE(bp); 1491 zb->zb_lsize += BP_GET_LSIZE(bp); 1492 zb->zb_psize += BP_GET_PSIZE(bp); 1493 zb->zb_count++; 1494 } 1495 1496 if (dump_opt['S']) { 1497 boolean_t print_sig; 1498 1499 print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 && 1500 BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS); 1501 1502 if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg) 1503 print_sig = B_FALSE; 1504 1505 if (print_sig) { 1506 (void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t" 1507 "%llx:%llx:%llx:%llx\n", 1508 (u_longlong_t)BP_GET_LEVEL(bp), 1509 (longlong_t)BP_GET_PSIZE(bp), 1510 (longlong_t)BP_GET_NDVAS(bp), 1511 dmu_ot[BP_GET_TYPE(bp)].ot_name, 1512 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1513 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name, 1514 (u_longlong_t)bp->blk_cksum.zc_word[0], 1515 (u_longlong_t)bp->blk_cksum.zc_word[1], 1516 (u_longlong_t)bp->blk_cksum.zc_word[2], 1517 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1518 } 1519 } 1520 1521 if (!dump_opt['L']) 1522 VERIFY(zio_wait(zio_claim(NULL, spa, spa_first_txg(spa), bp, 1523 NULL, NULL, ZIO_FLAG_MUSTSUCCEED)) == 0); 1524 } 1525 1526 static int 1527 zdb_blkptr_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, 1528 const dnode_phys_t *dnp, void *arg) 1529 { 1530 zdb_cb_t *zcb = arg; 1531 char blkbuf[BP_SPRINTF_LEN]; 1532 dmu_object_type_t type; 1533 boolean_t is_l0_metadata; 1534 1535 if (bp == NULL) 1536 return (0); 1537 1538 type = BP_GET_TYPE(bp); 1539 1540 zdb_count_block(spa, zcb, bp, type); 1541 1542 /* 1543 * if we do metadata-only checksumming there's no need to checksum 1544 * indirect blocks here because it is done during traverse 1545 */ 1546 is_l0_metadata = (BP_GET_LEVEL(bp) == 0 && type < DMU_OT_NUMTYPES && 1547 dmu_ot[type].ot_metadata); 1548 1549 if (dump_opt['c'] > 1 || dump_opt['S'] || 1550 (dump_opt['c'] && is_l0_metadata)) { 1551 int ioerr, size; 1552 void *data; 1553 1554 size = BP_GET_LSIZE(bp); 1555 data = malloc(size); 1556 ioerr = zio_wait(zio_read(NULL, spa, bp, data, size, 1557 NULL, NULL, ZIO_PRIORITY_ASYNC_READ, 1558 ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB, zb)); 1559 free(data); 1560 1561 /* We expect io errors on intent log */ 1562 if (ioerr && type != DMU_OT_INTENT_LOG) { 1563 zcb->zcb_haderrors = 1; 1564 zcb->zcb_errors[ioerr]++; 1565 1566 if (dump_opt['b'] >= 2) 1567 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1568 else 1569 blkbuf[0] = '\0'; 1570 1571 if (!dump_opt['S']) { 1572 (void) printf("zdb_blkptr_cb: " 1573 "Got error %d reading " 1574 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 1575 ioerr, 1576 (u_longlong_t)zb->zb_objset, 1577 (u_longlong_t)zb->zb_object, 1578 (u_longlong_t)zb->zb_level, 1579 (u_longlong_t)zb->zb_blkid, 1580 blkbuf); 1581 } 1582 } 1583 } 1584 1585 zcb->zcb_readfails = 0; 1586 1587 if (dump_opt['b'] >= 4) { 1588 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1589 (void) printf("objset %llu object %llu offset 0x%llx %s\n", 1590 (u_longlong_t)zb->zb_objset, 1591 (u_longlong_t)zb->zb_object, 1592 (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid), 1593 blkbuf); 1594 } 1595 1596 return (0); 1597 } 1598 1599 static int 1600 dump_block_stats(spa_t *spa) 1601 { 1602 zdb_cb_t zcb = { 0 }; 1603 zdb_blkstats_t *zb, *tzb; 1604 uint64_t alloc, space, logalloc; 1605 vdev_t *rvd = spa->spa_root_vdev; 1606 int leaks = 0; 1607 int c, e; 1608 1609 if (!dump_opt['S']) { 1610 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n", 1611 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 1612 (dump_opt['c'] == 1) ? "metadata " : "", 1613 dump_opt['c'] ? "checksums " : "", 1614 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 1615 !dump_opt['L'] ? "nothing leaked " : ""); 1616 } 1617 1618 /* 1619 * Load all space maps as SM_ALLOC maps, then traverse the pool 1620 * claiming each block we discover. If the pool is perfectly 1621 * consistent, the space maps will be empty when we're done. 1622 * Anything left over is a leak; any block we can't claim (because 1623 * it's not part of any space map) is a double allocation, 1624 * reference to a freed block, or an unclaimed log block. 1625 */ 1626 if (!dump_opt['L']) 1627 zdb_leak_init(spa); 1628 1629 /* 1630 * If there's a deferred-free bplist, process that first. 1631 */ 1632 if (spa->spa_sync_bplist_obj != 0) { 1633 bplist_t *bpl = &spa->spa_sync_bplist; 1634 blkptr_t blk; 1635 uint64_t itor = 0; 1636 1637 VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset, 1638 spa->spa_sync_bplist_obj)); 1639 1640 while (bplist_iterate(bpl, &itor, &blk) == 0) { 1641 if (dump_opt['b'] >= 4) { 1642 char blkbuf[BP_SPRINTF_LEN]; 1643 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk); 1644 (void) printf("[%s] %s\n", 1645 "deferred free", blkbuf); 1646 } 1647 zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED); 1648 } 1649 1650 bplist_close(bpl); 1651 } 1652 1653 zcb.zcb_haderrors |= traverse_pool(spa, zdb_blkptr_cb, &zcb); 1654 1655 if (zcb.zcb_haderrors && !dump_opt['S']) { 1656 (void) printf("\nError counts:\n\n"); 1657 (void) printf("\t%5s %s\n", "errno", "count"); 1658 for (e = 0; e < 256; e++) { 1659 if (zcb.zcb_errors[e] != 0) { 1660 (void) printf("\t%5d %llu\n", 1661 e, (u_longlong_t)zcb.zcb_errors[e]); 1662 } 1663 } 1664 } 1665 1666 /* 1667 * Report any leaked segments. 1668 */ 1669 if (!dump_opt['L']) 1670 zdb_leak_fini(spa); 1671 1672 /* 1673 * If we're interested in printing out the blkptr signatures, 1674 * return now as we don't print out anything else (including 1675 * errors and leaks). 1676 */ 1677 if (dump_opt['S']) 1678 return (zcb.zcb_haderrors ? 3 : 0); 1679 1680 alloc = spa_get_alloc(spa); 1681 space = spa_get_space(spa); 1682 1683 /* 1684 * Log blocks allocated from a separate log device don't count 1685 * as part of the normal pool space; factor them in here. 1686 */ 1687 logalloc = 0; 1688 1689 for (c = 0; c < rvd->vdev_children; c++) 1690 if (rvd->vdev_child[c]->vdev_islog) 1691 logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc; 1692 1693 tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL]; 1694 1695 if (tzb->zb_asize == alloc + logalloc) { 1696 if (!dump_opt['L']) 1697 (void) printf("\n\tNo leaks (block sum matches space" 1698 " maps exactly)\n"); 1699 } else { 1700 (void) printf("block traversal size %llu != alloc %llu " 1701 "(%s %lld)\n", 1702 (u_longlong_t)tzb->zb_asize, 1703 (u_longlong_t)alloc + logalloc, 1704 (dump_opt['L']) ? "unreachable" : "leaked", 1705 (longlong_t)(alloc + logalloc - tzb->zb_asize)); 1706 leaks = 1; 1707 } 1708 1709 if (tzb->zb_count == 0) 1710 return (2); 1711 1712 (void) printf("\n"); 1713 (void) printf("\tbp count: %10llu\n", 1714 (u_longlong_t)tzb->zb_count); 1715 (void) printf("\tbp logical: %10llu\t avg: %6llu\n", 1716 (u_longlong_t)tzb->zb_lsize, 1717 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 1718 (void) printf("\tbp physical: %10llu\t avg:" 1719 " %6llu\tcompression: %6.2f\n", 1720 (u_longlong_t)tzb->zb_psize, 1721 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 1722 (double)tzb->zb_lsize / tzb->zb_psize); 1723 (void) printf("\tbp allocated: %10llu\t avg:" 1724 " %6llu\tcompression: %6.2f\n", 1725 (u_longlong_t)tzb->zb_asize, 1726 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 1727 (double)tzb->zb_lsize / tzb->zb_asize); 1728 (void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n", 1729 (u_longlong_t)alloc, 100.0 * alloc / space); 1730 1731 if (dump_opt['b'] >= 2) { 1732 int l, t, level; 1733 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 1734 "\t avg\t comp\t%%Total\tType\n"); 1735 1736 for (t = 0; t <= DMU_OT_NUMTYPES; t++) { 1737 char csize[6], lsize[6], psize[6], asize[6], avg[6]; 1738 char *typename; 1739 1740 typename = t == DMU_OT_DEFERRED ? "deferred free" : 1741 t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name; 1742 1743 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 1744 (void) printf("%6s\t%5s\t%5s\t%5s" 1745 "\t%5s\t%5s\t%6s\t%s\n", 1746 "-", 1747 "-", 1748 "-", 1749 "-", 1750 "-", 1751 "-", 1752 "-", 1753 typename); 1754 continue; 1755 } 1756 1757 for (l = ZB_TOTAL - 1; l >= -1; l--) { 1758 level = (l == -1 ? ZB_TOTAL : l); 1759 zb = &zcb.zcb_type[level][t]; 1760 1761 if (zb->zb_asize == 0) 1762 continue; 1763 1764 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 1765 continue; 1766 1767 if (level == 0 && zb->zb_asize == 1768 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 1769 continue; 1770 1771 nicenum(zb->zb_count, csize); 1772 nicenum(zb->zb_lsize, lsize); 1773 nicenum(zb->zb_psize, psize); 1774 nicenum(zb->zb_asize, asize); 1775 nicenum(zb->zb_asize / zb->zb_count, avg); 1776 1777 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 1778 "\t%5.2f\t%6.2f\t", 1779 csize, lsize, psize, asize, avg, 1780 (double)zb->zb_lsize / zb->zb_psize, 1781 100.0 * zb->zb_asize / tzb->zb_asize); 1782 1783 if (level == ZB_TOTAL) 1784 (void) printf("%s\n", typename); 1785 else 1786 (void) printf(" L%d %s\n", 1787 level, typename); 1788 } 1789 } 1790 } 1791 1792 (void) printf("\n"); 1793 1794 if (leaks) 1795 return (2); 1796 1797 if (zcb.zcb_haderrors) 1798 return (3); 1799 1800 return (0); 1801 } 1802 1803 static void 1804 dump_zpool(spa_t *spa) 1805 { 1806 dsl_pool_t *dp = spa_get_dsl(spa); 1807 int rc = 0; 1808 1809 if (dump_opt['u']) 1810 dump_uberblock(&spa->spa_uberblock); 1811 1812 if (dump_opt['d'] || dump_opt['i']) { 1813 dump_dir(dp->dp_meta_objset); 1814 if (dump_opt['d'] >= 3) { 1815 dump_bplist(dp->dp_meta_objset, 1816 spa->spa_sync_bplist_obj, "Deferred frees"); 1817 dump_dtl(spa->spa_root_vdev, 0); 1818 dump_metaslabs(spa); 1819 } 1820 (void) dmu_objset_find(spa_name(spa), dump_one_dir, NULL, 1821 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 1822 } 1823 1824 if (dump_opt['b'] || dump_opt['c'] || dump_opt['S']) 1825 rc = dump_block_stats(spa); 1826 1827 if (dump_opt['s']) 1828 show_pool_stats(spa); 1829 1830 if (rc != 0) 1831 exit(rc); 1832 } 1833 1834 #define ZDB_FLAG_CHECKSUM 0x0001 1835 #define ZDB_FLAG_DECOMPRESS 0x0002 1836 #define ZDB_FLAG_BSWAP 0x0004 1837 #define ZDB_FLAG_GBH 0x0008 1838 #define ZDB_FLAG_INDIRECT 0x0010 1839 #define ZDB_FLAG_PHYS 0x0020 1840 #define ZDB_FLAG_RAW 0x0040 1841 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 1842 1843 int flagbits[256]; 1844 1845 static void 1846 zdb_print_blkptr(blkptr_t *bp, int flags) 1847 { 1848 dva_t *dva = bp->blk_dva; 1849 int d; 1850 1851 if (flags & ZDB_FLAG_BSWAP) 1852 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 1853 /* 1854 * Super-ick warning: This code is also duplicated in 1855 * cmd/mdb/common/modules/zfs/zfs.c . Yeah, I hate code 1856 * replication, too. 1857 */ 1858 for (d = 0; d < BP_GET_NDVAS(bp); d++) { 1859 (void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d, 1860 (longlong_t)DVA_GET_VDEV(&dva[d]), 1861 (longlong_t)DVA_GET_OFFSET(&dva[d])); 1862 (void) printf("\tDVA[%d]: GANG: %-5s GRID: %04llx\t" 1863 "ASIZE: %llx\n", d, 1864 DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE", 1865 (longlong_t)DVA_GET_GRID(&dva[d]), 1866 (longlong_t)DVA_GET_ASIZE(&dva[d])); 1867 (void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d, 1868 (u_longlong_t)DVA_GET_VDEV(&dva[d]), 1869 (longlong_t)DVA_GET_OFFSET(&dva[d]), 1870 (longlong_t)BP_GET_PSIZE(bp), 1871 BP_SHOULD_BYTESWAP(bp) ? "e" : "", 1872 !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ? 1873 "d" : "", 1874 DVA_GET_GANG(&dva[d]) ? "g" : "", 1875 BP_GET_COMPRESS(bp) != 0 ? "d" : ""); 1876 } 1877 (void) printf("\tLSIZE: %-16llx\t\tPSIZE: %llx\n", 1878 (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp)); 1879 (void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE: %s\n", 1880 BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG", 1881 dmu_ot[BP_GET_TYPE(bp)].ot_name); 1882 (void) printf("\tBIRTH: %-16llx LEVEL: %-2llu\tFILL: %llx\n", 1883 (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp), 1884 (u_longlong_t)bp->blk_fill); 1885 (void) printf("\tCKFUNC: %-16s\t\tCOMP: %s\n", 1886 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1887 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name); 1888 (void) printf("\tCKSUM: %llx:%llx:%llx:%llx\n", 1889 (u_longlong_t)bp->blk_cksum.zc_word[0], 1890 (u_longlong_t)bp->blk_cksum.zc_word[1], 1891 (u_longlong_t)bp->blk_cksum.zc_word[2], 1892 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1893 } 1894 1895 static void 1896 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 1897 { 1898 int i; 1899 1900 for (i = 0; i < nbps; i++) 1901 zdb_print_blkptr(&bp[i], flags); 1902 } 1903 1904 static void 1905 zdb_dump_gbh(void *buf, int flags) 1906 { 1907 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 1908 } 1909 1910 static void 1911 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 1912 { 1913 if (flags & ZDB_FLAG_BSWAP) 1914 byteswap_uint64_array(buf, size); 1915 (void) write(2, buf, size); 1916 } 1917 1918 static void 1919 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 1920 { 1921 uint64_t *d = (uint64_t *)buf; 1922 int nwords = size / sizeof (uint64_t); 1923 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 1924 int i, j; 1925 char *hdr, *c; 1926 1927 1928 if (do_bswap) 1929 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 1930 else 1931 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 1932 1933 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 1934 1935 for (i = 0; i < nwords; i += 2) { 1936 (void) printf("%06llx: %016llx %016llx ", 1937 (u_longlong_t)(i * sizeof (uint64_t)), 1938 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 1939 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 1940 1941 c = (char *)&d[i]; 1942 for (j = 0; j < 2 * sizeof (uint64_t); j++) 1943 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 1944 (void) printf("\n"); 1945 } 1946 } 1947 1948 /* 1949 * There are two acceptable formats: 1950 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 1951 * child[.child]* - For example: 0.1.1 1952 * 1953 * The second form can be used to specify arbitrary vdevs anywhere 1954 * in the heirarchy. For example, in a pool with a mirror of 1955 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 1956 */ 1957 static vdev_t * 1958 zdb_vdev_lookup(vdev_t *vdev, char *path) 1959 { 1960 char *s, *p, *q; 1961 int i; 1962 1963 if (vdev == NULL) 1964 return (NULL); 1965 1966 /* First, assume the x.x.x.x format */ 1967 i = (int)strtoul(path, &s, 10); 1968 if (s == path || (s && *s != '.' && *s != '\0')) 1969 goto name; 1970 if (i < 0 || i >= vdev->vdev_children) 1971 return (NULL); 1972 1973 vdev = vdev->vdev_child[i]; 1974 if (*s == '\0') 1975 return (vdev); 1976 return (zdb_vdev_lookup(vdev, s+1)); 1977 1978 name: 1979 for (i = 0; i < vdev->vdev_children; i++) { 1980 vdev_t *vc = vdev->vdev_child[i]; 1981 1982 if (vc->vdev_path == NULL) { 1983 vc = zdb_vdev_lookup(vc, path); 1984 if (vc == NULL) 1985 continue; 1986 else 1987 return (vc); 1988 } 1989 1990 p = strrchr(vc->vdev_path, '/'); 1991 p = p ? p + 1 : vc->vdev_path; 1992 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 1993 1994 if (strcmp(vc->vdev_path, path) == 0) 1995 return (vc); 1996 if (strcmp(p, path) == 0) 1997 return (vc); 1998 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 1999 return (vc); 2000 } 2001 2002 return (NULL); 2003 } 2004 2005 /* 2006 * Read a block from a pool and print it out. The syntax of the 2007 * block descriptor is: 2008 * 2009 * pool:vdev_specifier:offset:size[:flags] 2010 * 2011 * pool - The name of the pool you wish to read from 2012 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2013 * offset - offset, in hex, in bytes 2014 * size - Amount of data to read, in hex, in bytes 2015 * flags - A string of characters specifying options 2016 * b: Decode a blkptr at given offset within block 2017 * *c: Calculate and display checksums 2018 * *d: Decompress data before dumping 2019 * e: Byteswap data before dumping 2020 * *g: Display data as a gang block header 2021 * *i: Display as an indirect block 2022 * p: Do I/O to physical offset 2023 * r: Dump raw data to stdout 2024 * 2025 * * = not yet implemented 2026 */ 2027 static void 2028 zdb_read_block(char *thing, spa_t **spap) 2029 { 2030 spa_t *spa = *spap; 2031 int flags = 0; 2032 uint64_t offset = 0, size = 0, blkptr_offset = 0; 2033 zio_t *zio; 2034 vdev_t *vd; 2035 void *buf; 2036 char *s, *p, *dup, *pool, *vdev, *flagstr; 2037 int i, error, zio_flags; 2038 2039 dup = strdup(thing); 2040 s = strtok(dup, ":"); 2041 pool = s ? s : ""; 2042 s = strtok(NULL, ":"); 2043 vdev = s ? s : ""; 2044 s = strtok(NULL, ":"); 2045 offset = strtoull(s ? s : "", NULL, 16); 2046 s = strtok(NULL, ":"); 2047 size = strtoull(s ? s : "", NULL, 16); 2048 s = strtok(NULL, ":"); 2049 flagstr = s ? s : ""; 2050 2051 s = NULL; 2052 if (size == 0) 2053 s = "size must not be zero"; 2054 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2055 s = "size must be a multiple of sector size"; 2056 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2057 s = "offset must be a multiple of sector size"; 2058 if (s) { 2059 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2060 free(dup); 2061 return; 2062 } 2063 2064 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2065 for (i = 0; flagstr[i]; i++) { 2066 int bit = flagbits[(uchar_t)flagstr[i]]; 2067 2068 if (bit == 0) { 2069 (void) printf("***Invalid flag: %c\n", 2070 flagstr[i]); 2071 continue; 2072 } 2073 flags |= bit; 2074 2075 /* If it's not something with an argument, keep going */ 2076 if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS | 2077 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2078 continue; 2079 2080 p = &flagstr[i + 1]; 2081 if (bit == ZDB_FLAG_PRINT_BLKPTR) 2082 blkptr_offset = strtoull(p, &p, 16); 2083 if (*p != ':' && *p != '\0') { 2084 (void) printf("***Invalid flag arg: '%s'\n", s); 2085 free(dup); 2086 return; 2087 } 2088 } 2089 } 2090 2091 if (spa == NULL || strcmp(spa_name(spa), pool) != 0) { 2092 if (spa) 2093 spa_close(spa, (void *)zdb_read_block); 2094 error = spa_open(pool, spap, (void *)zdb_read_block); 2095 if (error) 2096 fatal("Failed to open pool '%s': %s", 2097 pool, strerror(error)); 2098 spa = *spap; 2099 } 2100 2101 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 2102 if (vd == NULL) { 2103 (void) printf("***Invalid vdev: %s\n", vdev); 2104 free(dup); 2105 return; 2106 } else { 2107 if (vd->vdev_path) 2108 (void) printf("Found vdev: %s\n", vd->vdev_path); 2109 else 2110 (void) printf("Found vdev type: %s\n", 2111 vd->vdev_ops->vdev_op_type); 2112 } 2113 2114 buf = umem_alloc(size, UMEM_NOFAIL); 2115 2116 zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 2117 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY; 2118 2119 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 2120 zio = zio_root(spa, NULL, NULL, 0); 2121 /* XXX todo - cons up a BP so RAID-Z will be happy */ 2122 zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size, 2123 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL)); 2124 error = zio_wait(zio); 2125 spa_config_exit(spa, SCL_STATE, FTAG); 2126 2127 if (error) { 2128 (void) printf("Read of %s failed, error: %d\n", thing, error); 2129 goto out; 2130 } 2131 2132 if (flags & ZDB_FLAG_PRINT_BLKPTR) 2133 zdb_print_blkptr((blkptr_t *)(void *) 2134 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 2135 else if (flags & ZDB_FLAG_RAW) 2136 zdb_dump_block_raw(buf, size, flags); 2137 else if (flags & ZDB_FLAG_INDIRECT) 2138 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 2139 flags); 2140 else if (flags & ZDB_FLAG_GBH) 2141 zdb_dump_gbh(buf, flags); 2142 else 2143 zdb_dump_block(thing, buf, size, flags); 2144 2145 out: 2146 umem_free(buf, size); 2147 free(dup); 2148 } 2149 2150 static boolean_t 2151 nvlist_string_match(nvlist_t *config, char *name, char *tgt) 2152 { 2153 char *s; 2154 2155 if (nvlist_lookup_string(config, name, &s) != 0) 2156 return (B_FALSE); 2157 2158 return (strcmp(s, tgt) == 0); 2159 } 2160 2161 static boolean_t 2162 nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt) 2163 { 2164 uint64_t val; 2165 2166 if (nvlist_lookup_uint64(config, name, &val) != 0) 2167 return (B_FALSE); 2168 2169 return (val == tgt); 2170 } 2171 2172 static boolean_t 2173 vdev_child_guid_match(nvlist_t *vdev, uint64_t guid) 2174 { 2175 nvlist_t **child; 2176 uint_t c, children; 2177 2178 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2179 &child, &children) == 0); 2180 for (c = 0; c < children; ++c) 2181 if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid)) 2182 return (B_TRUE); 2183 return (B_FALSE); 2184 } 2185 2186 static boolean_t 2187 vdev_child_string_match(nvlist_t *vdev, char *tgt) 2188 { 2189 nvlist_t **child; 2190 uint_t c, children; 2191 2192 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2193 &child, &children) == 0); 2194 for (c = 0; c < children; ++c) { 2195 if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) || 2196 nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt)) 2197 return (B_TRUE); 2198 } 2199 return (B_FALSE); 2200 } 2201 2202 static boolean_t 2203 vdev_guid_match(nvlist_t *config, uint64_t guid) 2204 { 2205 nvlist_t *nvroot; 2206 2207 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2208 &nvroot) == 0); 2209 2210 return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) || 2211 vdev_child_guid_match(nvroot, guid)); 2212 } 2213 2214 static boolean_t 2215 vdev_string_match(nvlist_t *config, char *tgt) 2216 { 2217 nvlist_t *nvroot; 2218 2219 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2220 &nvroot) == 0); 2221 2222 return (vdev_child_string_match(nvroot, tgt)); 2223 } 2224 2225 static boolean_t 2226 pool_match(nvlist_t *config, char *tgt) 2227 { 2228 uint64_t guid = strtoull(tgt, NULL, 0); 2229 2230 if (guid != 0) { 2231 return ( 2232 nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) || 2233 vdev_guid_match(config, guid)); 2234 } else { 2235 return ( 2236 nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) || 2237 vdev_string_match(config, tgt)); 2238 } 2239 } 2240 2241 static int 2242 find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir) 2243 { 2244 nvlist_t *pools; 2245 int error = ENOENT; 2246 nvlist_t *match = NULL; 2247 2248 if (vdev_dir != NULL) 2249 pools = zpool_find_import_activeok(g_zfs, 1, &vdev_dir); 2250 else 2251 pools = zpool_find_import_activeok(g_zfs, 0, NULL); 2252 2253 if (pools != NULL) { 2254 nvpair_t *elem = NULL; 2255 2256 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 2257 verify(nvpair_value_nvlist(elem, configp) == 0); 2258 if (pool_match(*configp, pool_id)) { 2259 if (match != NULL) { 2260 (void) fatal( 2261 "More than one matching pool - " 2262 "specify guid/devid/device path."); 2263 } else { 2264 match = *configp; 2265 error = 0; 2266 } 2267 } 2268 } 2269 } 2270 2271 *configp = error ? NULL : match; 2272 2273 return (error); 2274 } 2275 2276 int 2277 main(int argc, char **argv) 2278 { 2279 int i, c; 2280 struct rlimit rl = { 1024, 1024 }; 2281 spa_t *spa; 2282 objset_t *os = NULL; 2283 char *endstr; 2284 int dump_all = 1; 2285 int verbose = 0; 2286 int error; 2287 int exported = 0; 2288 char *vdev_dir = NULL; 2289 2290 (void) setrlimit(RLIMIT_NOFILE, &rl); 2291 (void) enable_extended_FILE_stdio(-1, -1); 2292 2293 dprintf_setup(&argc, argv); 2294 2295 while ((c = getopt(argc, argv, "udibcsvCLS:U:lRep:t:")) != -1) { 2296 switch (c) { 2297 case 'u': 2298 case 'd': 2299 case 'i': 2300 case 'b': 2301 case 'c': 2302 case 's': 2303 case 'C': 2304 case 'l': 2305 case 'R': 2306 dump_opt[c]++; 2307 dump_all = 0; 2308 break; 2309 case 'L': 2310 dump_opt[c]++; 2311 break; 2312 case 'v': 2313 verbose++; 2314 break; 2315 case 'U': 2316 spa_config_path = optarg; 2317 break; 2318 case 'e': 2319 exported = 1; 2320 break; 2321 case 'p': 2322 vdev_dir = optarg; 2323 break; 2324 case 'S': 2325 dump_opt[c]++; 2326 dump_all = 0; 2327 zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0); 2328 if (!zdb_sig_user_data && strncmp(optarg, "all:", 4)) 2329 usage(); 2330 endstr = strchr(optarg, ':') + 1; 2331 if (strcmp(endstr, "fletcher2") == 0) 2332 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2333 else if (strcmp(endstr, "fletcher4") == 0) 2334 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4; 2335 else if (strcmp(endstr, "sha256") == 0) 2336 zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; 2337 else if (strcmp(endstr, "all") == 0) 2338 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2339 else 2340 usage(); 2341 break; 2342 case 't': 2343 ub_max_txg = strtoull(optarg, NULL, 0); 2344 if (ub_max_txg < TXG_INITIAL) { 2345 (void) fprintf(stderr, "incorrect txg " 2346 "specified: %s\n", optarg); 2347 usage(); 2348 } 2349 break; 2350 default: 2351 usage(); 2352 break; 2353 } 2354 } 2355 2356 if (vdev_dir != NULL && exported == 0) { 2357 (void) fprintf(stderr, "-p option requires use of -e\n"); 2358 usage(); 2359 } 2360 2361 kernel_init(FREAD); 2362 g_zfs = libzfs_init(); 2363 ASSERT(g_zfs != NULL); 2364 2365 for (c = 0; c < 256; c++) { 2366 if (dump_all && c != 'l' && c != 'R') 2367 dump_opt[c] = 1; 2368 if (dump_opt[c]) 2369 dump_opt[c] += verbose; 2370 } 2371 2372 argc -= optind; 2373 argv += optind; 2374 2375 if (argc < 1) { 2376 if (dump_opt['C']) { 2377 dump_cachefile(spa_config_path); 2378 return (0); 2379 } 2380 usage(); 2381 } 2382 2383 if (dump_opt['l']) { 2384 dump_label(argv[0]); 2385 return (0); 2386 } 2387 2388 if (dump_opt['R']) { 2389 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 2390 flagbits['c'] = ZDB_FLAG_CHECKSUM; 2391 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 2392 flagbits['e'] = ZDB_FLAG_BSWAP; 2393 flagbits['g'] = ZDB_FLAG_GBH; 2394 flagbits['i'] = ZDB_FLAG_INDIRECT; 2395 flagbits['p'] = ZDB_FLAG_PHYS; 2396 flagbits['r'] = ZDB_FLAG_RAW; 2397 2398 spa = NULL; 2399 while (argv[0]) { 2400 zdb_read_block(argv[0], &spa); 2401 argv++; 2402 argc--; 2403 } 2404 if (spa) 2405 spa_close(spa, (void *)zdb_read_block); 2406 return (0); 2407 } 2408 2409 if (dump_opt['C']) 2410 dump_config(argv[0]); 2411 2412 error = 0; 2413 if (exported) { 2414 /* 2415 * Check to see if the name refers to an exported zpool 2416 */ 2417 char *slash; 2418 nvlist_t *exported_conf = NULL; 2419 2420 if ((slash = strchr(argv[0], '/')) != NULL) 2421 *slash = '\0'; 2422 2423 error = find_exported_zpool(argv[0], &exported_conf, vdev_dir); 2424 if (error == 0) { 2425 nvlist_t *nvl = NULL; 2426 2427 if (vdev_dir != NULL) { 2428 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 2429 error = ENOMEM; 2430 else if (nvlist_add_string(nvl, 2431 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), 2432 vdev_dir) != 0) 2433 error = ENOMEM; 2434 } 2435 2436 if (error == 0) 2437 error = spa_import_verbatim(argv[0], 2438 exported_conf, nvl); 2439 2440 nvlist_free(nvl); 2441 } 2442 2443 if (slash != NULL) 2444 *slash = '/'; 2445 } 2446 2447 if (error == 0) { 2448 if (strchr(argv[0], '/') != NULL) { 2449 error = dmu_objset_open(argv[0], DMU_OST_ANY, 2450 DS_MODE_USER | DS_MODE_READONLY, &os); 2451 } else { 2452 error = spa_open(argv[0], &spa, FTAG); 2453 } 2454 } 2455 2456 if (error) 2457 fatal("can't open %s: %s", argv[0], strerror(error)); 2458 2459 argv++; 2460 if (--argc > 0) { 2461 zopt_objects = argc; 2462 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 2463 for (i = 0; i < zopt_objects; i++) { 2464 errno = 0; 2465 zopt_object[i] = strtoull(argv[i], NULL, 0); 2466 if (zopt_object[i] == 0 && errno != 0) 2467 fatal("bad object number %s: %s", 2468 argv[i], strerror(errno)); 2469 } 2470 } 2471 2472 if (os != NULL) { 2473 dump_dir(os); 2474 dmu_objset_close(os); 2475 } else { 2476 dump_zpool(spa); 2477 spa_close(spa, FTAG); 2478 } 2479 2480 fuid_table_destroy(); 2481 2482 libzfs_fini(g_zfs); 2483 kernel_fini(); 2484 2485 return (0); 2486 } 2487