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