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, " -h pool history\n"); 104 (void) fprintf(stderr, " -i intent logs\n"); 105 (void) fprintf(stderr, " -b block statistics\n"); 106 (void) fprintf(stderr, " -m metaslabs\n"); 107 (void) fprintf(stderr, " -c checksum all metadata (twice for " 108 "all data) blocks\n"); 109 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 110 (void) fprintf(stderr, " -S <user|all>:<cksum_alg|all> -- " 111 "dump blkptr signatures\n"); 112 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 113 (void) fprintf(stderr, " -l dump label contents\n"); 114 (void) fprintf(stderr, " -L disable leak tracking (do not " 115 "load spacemaps)\n"); 116 (void) fprintf(stderr, " -U cachefile_path -- use alternate " 117 "cachefile\n"); 118 (void) fprintf(stderr, " -R read and display block from a " 119 "device\n"); 120 (void) fprintf(stderr, " -e Pool is exported/destroyed/" 121 "has altroot\n"); 122 (void) fprintf(stderr, " -p <Path to vdev dir> (use with -e)\n"); 123 (void) fprintf(stderr, " -t <txg> highest txg to use when " 124 "searching for uberblocks\n"); 125 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 126 "to make only that option verbose\n"); 127 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 128 exit(1); 129 } 130 131 /* 132 * Called for usage errors that are discovered after a call to spa_open(), 133 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 134 */ 135 136 static void 137 fatal(const char *fmt, ...) 138 { 139 va_list ap; 140 141 va_start(ap, fmt); 142 (void) fprintf(stderr, "%s: ", cmdname); 143 (void) vfprintf(stderr, fmt, ap); 144 va_end(ap); 145 (void) fprintf(stderr, "\n"); 146 147 exit(1); 148 } 149 150 /* ARGSUSED */ 151 static void 152 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 153 { 154 nvlist_t *nv; 155 size_t nvsize = *(uint64_t *)data; 156 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 157 158 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 159 160 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 161 162 umem_free(packed, nvsize); 163 164 dump_nvlist(nv, 8); 165 166 nvlist_free(nv); 167 } 168 169 const char dump_zap_stars[] = "****************************************"; 170 const int dump_zap_width = sizeof (dump_zap_stars) - 1; 171 172 static void 173 dump_zap_histogram(uint64_t histo[ZAP_HISTOGRAM_SIZE]) 174 { 175 int i; 176 int minidx = ZAP_HISTOGRAM_SIZE - 1; 177 int maxidx = 0; 178 uint64_t max = 0; 179 180 for (i = 0; i < ZAP_HISTOGRAM_SIZE; i++) { 181 if (histo[i] > max) 182 max = histo[i]; 183 if (histo[i] > 0 && i > maxidx) 184 maxidx = i; 185 if (histo[i] > 0 && i < minidx) 186 minidx = i; 187 } 188 189 if (max < dump_zap_width) 190 max = dump_zap_width; 191 192 for (i = minidx; i <= maxidx; i++) 193 (void) printf("\t\t\t%u: %6llu %s\n", i, (u_longlong_t)histo[i], 194 &dump_zap_stars[(max - histo[i]) * dump_zap_width / max]); 195 } 196 197 static void 198 dump_zap_stats(objset_t *os, uint64_t object) 199 { 200 int error; 201 zap_stats_t zs; 202 203 error = zap_get_stats(os, object, &zs); 204 if (error) 205 return; 206 207 if (zs.zs_ptrtbl_len == 0) { 208 ASSERT(zs.zs_num_blocks == 1); 209 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 210 (u_longlong_t)zs.zs_blocksize, 211 (u_longlong_t)zs.zs_num_entries); 212 return; 213 } 214 215 (void) printf("\tFat ZAP stats:\n"); 216 217 (void) printf("\t\tPointer table:\n"); 218 (void) printf("\t\t\t%llu elements\n", 219 (u_longlong_t)zs.zs_ptrtbl_len); 220 (void) printf("\t\t\tzt_blk: %llu\n", 221 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 222 (void) printf("\t\t\tzt_numblks: %llu\n", 223 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 224 (void) printf("\t\t\tzt_shift: %llu\n", 225 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 226 (void) printf("\t\t\tzt_blks_copied: %llu\n", 227 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 228 (void) printf("\t\t\tzt_nextblk: %llu\n", 229 (u_longlong_t)zs.zs_ptrtbl_nextblk); 230 231 (void) printf("\t\tZAP entries: %llu\n", 232 (u_longlong_t)zs.zs_num_entries); 233 (void) printf("\t\tLeaf blocks: %llu\n", 234 (u_longlong_t)zs.zs_num_leafs); 235 (void) printf("\t\tTotal blocks: %llu\n", 236 (u_longlong_t)zs.zs_num_blocks); 237 (void) printf("\t\tzap_block_type: 0x%llx\n", 238 (u_longlong_t)zs.zs_block_type); 239 (void) printf("\t\tzap_magic: 0x%llx\n", 240 (u_longlong_t)zs.zs_magic); 241 (void) printf("\t\tzap_salt: 0x%llx\n", 242 (u_longlong_t)zs.zs_salt); 243 244 (void) printf("\t\tLeafs with 2^n pointers:\n"); 245 dump_zap_histogram(zs.zs_leafs_with_2n_pointers); 246 247 (void) printf("\t\tBlocks with n*5 entries:\n"); 248 dump_zap_histogram(zs.zs_blocks_with_n5_entries); 249 250 (void) printf("\t\tBlocks n/10 full:\n"); 251 dump_zap_histogram(zs.zs_blocks_n_tenths_full); 252 253 (void) printf("\t\tEntries with n chunks:\n"); 254 dump_zap_histogram(zs.zs_entries_using_n_chunks); 255 256 (void) printf("\t\tBuckets with n entries:\n"); 257 dump_zap_histogram(zs.zs_buckets_with_n_entries); 258 } 259 260 /*ARGSUSED*/ 261 static void 262 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 263 { 264 } 265 266 /*ARGSUSED*/ 267 void 268 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 269 { 270 } 271 272 /*ARGSUSED*/ 273 static void 274 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 275 { 276 } 277 278 /*ARGSUSED*/ 279 static void 280 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 281 { 282 zap_cursor_t zc; 283 zap_attribute_t attr; 284 void *prop; 285 int i; 286 287 dump_zap_stats(os, object); 288 (void) printf("\n"); 289 290 for (zap_cursor_init(&zc, os, object); 291 zap_cursor_retrieve(&zc, &attr) == 0; 292 zap_cursor_advance(&zc)) { 293 (void) printf("\t\t%s = ", attr.za_name); 294 if (attr.za_num_integers == 0) { 295 (void) printf("\n"); 296 continue; 297 } 298 prop = umem_zalloc(attr.za_num_integers * 299 attr.za_integer_length, UMEM_NOFAIL); 300 (void) zap_lookup(os, object, attr.za_name, 301 attr.za_integer_length, attr.za_num_integers, prop); 302 if (attr.za_integer_length == 1) { 303 (void) printf("%s", (char *)prop); 304 } else { 305 for (i = 0; i < attr.za_num_integers; i++) { 306 switch (attr.za_integer_length) { 307 case 2: 308 (void) printf("%u ", 309 ((uint16_t *)prop)[i]); 310 break; 311 case 4: 312 (void) printf("%u ", 313 ((uint32_t *)prop)[i]); 314 break; 315 case 8: 316 (void) printf("%lld ", 317 (u_longlong_t)((int64_t *)prop)[i]); 318 break; 319 } 320 } 321 } 322 (void) printf("\n"); 323 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 324 } 325 zap_cursor_fini(&zc); 326 } 327 328 /*ARGSUSED*/ 329 static void 330 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 331 { 332 zap_cursor_t zc; 333 zap_attribute_t attr; 334 const char *typenames[] = { 335 /* 0 */ "not specified", 336 /* 1 */ "FIFO", 337 /* 2 */ "Character Device", 338 /* 3 */ "3 (invalid)", 339 /* 4 */ "Directory", 340 /* 5 */ "5 (invalid)", 341 /* 6 */ "Block Device", 342 /* 7 */ "7 (invalid)", 343 /* 8 */ "Regular File", 344 /* 9 */ "9 (invalid)", 345 /* 10 */ "Symbolic Link", 346 /* 11 */ "11 (invalid)", 347 /* 12 */ "Socket", 348 /* 13 */ "Door", 349 /* 14 */ "Event Port", 350 /* 15 */ "15 (invalid)", 351 }; 352 353 dump_zap_stats(os, object); 354 (void) printf("\n"); 355 356 for (zap_cursor_init(&zc, os, object); 357 zap_cursor_retrieve(&zc, &attr) == 0; 358 zap_cursor_advance(&zc)) { 359 (void) printf("\t\t%s = %lld (type: %s)\n", 360 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 361 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 362 } 363 zap_cursor_fini(&zc); 364 } 365 366 static void 367 dump_spacemap(objset_t *os, space_map_obj_t *smo, space_map_t *sm) 368 { 369 uint64_t alloc, offset, entry; 370 uint8_t mapshift = sm->sm_shift; 371 uint64_t mapstart = sm->sm_start; 372 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 373 "INVALID", "INVALID", "INVALID", "INVALID" }; 374 375 if (smo->smo_object == 0) 376 return; 377 378 /* 379 * Print out the freelist entries in both encoded and decoded form. 380 */ 381 alloc = 0; 382 for (offset = 0; offset < smo->smo_objsize; offset += sizeof (entry)) { 383 VERIFY(0 == dmu_read(os, smo->smo_object, offset, 384 sizeof (entry), &entry, DMU_READ_PREFETCH)); 385 if (SM_DEBUG_DECODE(entry)) { 386 (void) printf("\t\t[%4llu] %s: txg %llu, pass %llu\n", 387 (u_longlong_t)(offset / sizeof (entry)), 388 ddata[SM_DEBUG_ACTION_DECODE(entry)], 389 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 390 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 391 } else { 392 (void) printf("\t\t[%4llu] %c range:" 393 " %08llx-%08llx size: %06llx\n", 394 (u_longlong_t)(offset / sizeof (entry)), 395 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 396 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 397 mapshift) + mapstart), 398 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 399 mapshift) + mapstart + (SM_RUN_DECODE(entry) << 400 mapshift)), 401 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 402 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 403 alloc += SM_RUN_DECODE(entry) << mapshift; 404 else 405 alloc -= SM_RUN_DECODE(entry) << mapshift; 406 } 407 } 408 if (alloc != smo->smo_alloc) { 409 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 410 "with space map summary (%llu)\n", 411 (u_longlong_t)smo->smo_alloc, (u_longlong_t)alloc); 412 } 413 } 414 415 static void 416 dump_metaslab_stats(metaslab_t *msp) 417 { 418 char maxbuf[5]; 419 space_map_t *sm = &msp->ms_map; 420 avl_tree_t *t = sm->sm_pp_root; 421 int free_pct = sm->sm_space * 100 / sm->sm_size; 422 423 nicenum(space_map_maxsize(sm), maxbuf); 424 425 (void) printf("\t %20s %10lu %7s %6s %4s %4d%%\n", 426 "segments", avl_numnodes(t), "maxsize", maxbuf, 427 "freepct", free_pct); 428 } 429 430 static void 431 dump_metaslab(metaslab_t *msp) 432 { 433 char freebuf[5]; 434 space_map_obj_t *smo = &msp->ms_smo; 435 vdev_t *vd = msp->ms_group->mg_vd; 436 spa_t *spa = vd->vdev_spa; 437 438 nicenum(msp->ms_map.sm_size - smo->smo_alloc, freebuf); 439 440 (void) printf( 441 "\tvdev %5llu offset %12llx spacemap %6llu free %5s\n", 442 (u_longlong_t)vd->vdev_id, (u_longlong_t)msp->ms_map.sm_start, 443 (u_longlong_t)smo->smo_object, freebuf); 444 445 if (dump_opt['m'] > 1) { 446 mutex_enter(&msp->ms_lock); 447 VERIFY(space_map_load(&msp->ms_map, zfs_metaslab_ops, 448 SM_FREE, &msp->ms_smo, spa->spa_meta_objset) == 0); 449 dump_metaslab_stats(msp); 450 space_map_unload(&msp->ms_map); 451 mutex_exit(&msp->ms_lock); 452 } 453 454 if (dump_opt['d'] > 5 || dump_opt['m'] > 2) { 455 ASSERT(msp->ms_map.sm_size == (1ULL << vd->vdev_ms_shift)); 456 457 mutex_enter(&msp->ms_lock); 458 dump_spacemap(spa->spa_meta_objset, smo, &msp->ms_map); 459 mutex_exit(&msp->ms_lock); 460 } 461 462 } 463 464 static void 465 dump_metaslabs(spa_t *spa) 466 { 467 vdev_t *rvd = spa->spa_root_vdev; 468 vdev_t *vd; 469 int c, m; 470 471 (void) printf("\nMetaslabs:\n"); 472 473 for (c = 0; c < rvd->vdev_children; c++) { 474 vd = rvd->vdev_child[c]; 475 476 (void) printf("\t%-10s %-19s %-15s %-10s\n", 477 "vdev", "offset", "spacemap", "free"); 478 (void) printf("\t%10s %19s %15s %10s\n", 479 "----------", "-------------------", 480 "---------------", "-------------"); 481 482 for (m = 0; m < vd->vdev_ms_count; m++) 483 dump_metaslab(vd->vdev_ms[m]); 484 (void) printf("\n"); 485 } 486 } 487 488 static void 489 dump_dtl_seg(space_map_t *sm, uint64_t start, uint64_t size) 490 { 491 char *prefix = (void *)sm; 492 493 (void) printf("%s [%llu,%llu) length %llu\n", 494 prefix, 495 (u_longlong_t)start, 496 (u_longlong_t)(start + size), 497 (u_longlong_t)(size)); 498 } 499 500 static void 501 dump_dtl(vdev_t *vd, int indent) 502 { 503 spa_t *spa = vd->vdev_spa; 504 boolean_t required; 505 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 506 char prefix[256]; 507 508 spa_vdev_state_enter(spa, SCL_NONE); 509 required = vdev_dtl_required(vd); 510 (void) spa_vdev_state_exit(spa, NULL, 0); 511 512 if (indent == 0) 513 (void) printf("\nDirty time logs:\n\n"); 514 515 (void) printf("\t%*s%s [%s]\n", indent, "", 516 vd->vdev_path ? vd->vdev_path : 517 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 518 required ? "DTL-required" : "DTL-expendable"); 519 520 for (int t = 0; t < DTL_TYPES; t++) { 521 space_map_t *sm = &vd->vdev_dtl[t]; 522 if (sm->sm_space == 0) 523 continue; 524 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 525 indent + 2, "", name[t]); 526 mutex_enter(sm->sm_lock); 527 space_map_walk(sm, dump_dtl_seg, (void *)prefix); 528 mutex_exit(sm->sm_lock); 529 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 530 dump_spacemap(spa->spa_meta_objset, 531 &vd->vdev_dtl_smo, sm); 532 } 533 534 for (int c = 0; c < vd->vdev_children; c++) 535 dump_dtl(vd->vdev_child[c], indent + 4); 536 } 537 538 static void 539 dump_history(spa_t *spa) 540 { 541 nvlist_t **events = NULL; 542 char buf[SPA_MAXBLOCKSIZE]; 543 uint64_t resid, len, off = 0; 544 uint_t num = 0; 545 int error; 546 time_t tsec; 547 struct tm t; 548 char tbuf[30]; 549 char internalstr[MAXPATHLEN]; 550 551 do { 552 len = sizeof (buf); 553 554 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 555 (void) fprintf(stderr, "Unable to read history: " 556 "error %d\n", error); 557 return; 558 } 559 560 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 561 break; 562 563 off -= resid; 564 } while (len != 0); 565 566 (void) printf("\nHistory:\n"); 567 for (int i = 0; i < num; i++) { 568 uint64_t time, txg, ievent; 569 char *cmd, *intstr; 570 571 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 572 &time) != 0) 573 continue; 574 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 575 &cmd) != 0) { 576 if (nvlist_lookup_uint64(events[i], 577 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 578 continue; 579 verify(nvlist_lookup_uint64(events[i], 580 ZPOOL_HIST_TXG, &txg) == 0); 581 verify(nvlist_lookup_string(events[i], 582 ZPOOL_HIST_INT_STR, &intstr) == 0); 583 if (ievent >= LOG_END) 584 continue; 585 586 (void) snprintf(internalstr, 587 sizeof (internalstr), 588 "[internal %s txg:%lld] %s", 589 hist_event_table[ievent], txg, 590 intstr); 591 cmd = internalstr; 592 } 593 tsec = time; 594 (void) localtime_r(&tsec, &t); 595 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 596 (void) printf("%s %s\n", tbuf, cmd); 597 } 598 } 599 600 /*ARGSUSED*/ 601 static void 602 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 603 { 604 } 605 606 static uint64_t 607 blkid2offset(const dnode_phys_t *dnp, int level, uint64_t blkid) 608 { 609 if (level < 0) 610 return (blkid); 611 612 return ((blkid << (level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 613 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 614 } 615 616 static void 617 sprintf_blkptr_compact(char *blkbuf, blkptr_t *bp, int alldvas) 618 { 619 dva_t *dva = bp->blk_dva; 620 int ndvas = alldvas ? BP_GET_NDVAS(bp) : 1; 621 int i; 622 623 blkbuf[0] = '\0'; 624 625 for (i = 0; i < ndvas; i++) 626 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", 627 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 628 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 629 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 630 631 (void) sprintf(blkbuf + strlen(blkbuf), "%llxL/%llxP F=%llu B=%llu", 632 (u_longlong_t)BP_GET_LSIZE(bp), 633 (u_longlong_t)BP_GET_PSIZE(bp), 634 (u_longlong_t)bp->blk_fill, 635 (u_longlong_t)bp->blk_birth); 636 } 637 638 static void 639 print_indirect(blkptr_t *bp, const zbookmark_t *zb, 640 const dnode_phys_t *dnp) 641 { 642 char blkbuf[BP_SPRINTF_LEN]; 643 int l; 644 645 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 646 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 647 648 (void) printf("%16llx ", 649 (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid)); 650 651 ASSERT(zb->zb_level >= 0); 652 653 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 654 if (l == zb->zb_level) { 655 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 656 } else { 657 (void) printf(" "); 658 } 659 } 660 661 sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0); 662 (void) printf("%s\n", blkbuf); 663 } 664 665 #define SET_BOOKMARK(zb, objset, object, level, blkid) \ 666 { \ 667 (zb)->zb_objset = objset; \ 668 (zb)->zb_object = object; \ 669 (zb)->zb_level = level; \ 670 (zb)->zb_blkid = blkid; \ 671 } 672 673 static int 674 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 675 blkptr_t *bp, const zbookmark_t *zb) 676 { 677 int err = 0; 678 679 if (bp->blk_birth == 0) 680 return (0); 681 682 print_indirect(bp, zb, dnp); 683 684 if (BP_GET_LEVEL(bp) > 0) { 685 uint32_t flags = ARC_WAIT; 686 int i; 687 blkptr_t *cbp; 688 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 689 arc_buf_t *buf; 690 uint64_t fill = 0; 691 692 err = arc_read_nolock(NULL, spa, bp, arc_getbuf_func, &buf, 693 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 694 if (err) 695 return (err); 696 697 /* recursively visit blocks below this */ 698 cbp = buf->b_data; 699 for (i = 0; i < epb; i++, cbp++) { 700 zbookmark_t czb; 701 702 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 703 zb->zb_level - 1, 704 zb->zb_blkid * epb + i); 705 err = visit_indirect(spa, dnp, cbp, &czb); 706 if (err) 707 break; 708 fill += cbp->blk_fill; 709 } 710 if (!err) 711 ASSERT3U(fill, ==, bp->blk_fill); 712 (void) arc_buf_remove_ref(buf, &buf); 713 } 714 715 return (err); 716 } 717 718 /*ARGSUSED*/ 719 static void 720 dump_indirect(dnode_t *dn) 721 { 722 dnode_phys_t *dnp = dn->dn_phys; 723 int j; 724 zbookmark_t czb; 725 726 (void) printf("Indirect blocks:\n"); 727 728 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 729 dn->dn_object, dnp->dn_nlevels - 1, 0); 730 for (j = 0; j < dnp->dn_nblkptr; j++) { 731 czb.zb_blkid = j; 732 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 733 &dnp->dn_blkptr[j], &czb); 734 } 735 736 (void) printf("\n"); 737 } 738 739 /*ARGSUSED*/ 740 static void 741 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 742 { 743 dsl_dir_phys_t *dd = data; 744 time_t crtime; 745 char nice[6]; 746 747 if (dd == NULL) 748 return; 749 750 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 751 752 crtime = dd->dd_creation_time; 753 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 754 (void) printf("\t\thead_dataset_obj = %llu\n", 755 (u_longlong_t)dd->dd_head_dataset_obj); 756 (void) printf("\t\tparent_dir_obj = %llu\n", 757 (u_longlong_t)dd->dd_parent_obj); 758 (void) printf("\t\torigin_obj = %llu\n", 759 (u_longlong_t)dd->dd_origin_obj); 760 (void) printf("\t\tchild_dir_zapobj = %llu\n", 761 (u_longlong_t)dd->dd_child_dir_zapobj); 762 nicenum(dd->dd_used_bytes, nice); 763 (void) printf("\t\tused_bytes = %s\n", nice); 764 nicenum(dd->dd_compressed_bytes, nice); 765 (void) printf("\t\tcompressed_bytes = %s\n", nice); 766 nicenum(dd->dd_uncompressed_bytes, nice); 767 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 768 nicenum(dd->dd_quota, nice); 769 (void) printf("\t\tquota = %s\n", nice); 770 nicenum(dd->dd_reserved, nice); 771 (void) printf("\t\treserved = %s\n", nice); 772 (void) printf("\t\tprops_zapobj = %llu\n", 773 (u_longlong_t)dd->dd_props_zapobj); 774 (void) printf("\t\tdeleg_zapobj = %llu\n", 775 (u_longlong_t)dd->dd_deleg_zapobj); 776 (void) printf("\t\tflags = %llx\n", 777 (u_longlong_t)dd->dd_flags); 778 779 #define DO(which) \ 780 nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 781 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 782 DO(HEAD); 783 DO(SNAP); 784 DO(CHILD); 785 DO(CHILD_RSRV); 786 DO(REFRSRV); 787 #undef DO 788 } 789 790 /*ARGSUSED*/ 791 static void 792 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 793 { 794 dsl_dataset_phys_t *ds = data; 795 time_t crtime; 796 char used[6], compressed[6], uncompressed[6], unique[6]; 797 char blkbuf[BP_SPRINTF_LEN]; 798 799 if (ds == NULL) 800 return; 801 802 ASSERT(size == sizeof (*ds)); 803 crtime = ds->ds_creation_time; 804 nicenum(ds->ds_used_bytes, used); 805 nicenum(ds->ds_compressed_bytes, compressed); 806 nicenum(ds->ds_uncompressed_bytes, uncompressed); 807 nicenum(ds->ds_unique_bytes, unique); 808 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ds->ds_bp); 809 810 (void) printf("\t\tdir_obj = %llu\n", 811 (u_longlong_t)ds->ds_dir_obj); 812 (void) printf("\t\tprev_snap_obj = %llu\n", 813 (u_longlong_t)ds->ds_prev_snap_obj); 814 (void) printf("\t\tprev_snap_txg = %llu\n", 815 (u_longlong_t)ds->ds_prev_snap_txg); 816 (void) printf("\t\tnext_snap_obj = %llu\n", 817 (u_longlong_t)ds->ds_next_snap_obj); 818 (void) printf("\t\tsnapnames_zapobj = %llu\n", 819 (u_longlong_t)ds->ds_snapnames_zapobj); 820 (void) printf("\t\tnum_children = %llu\n", 821 (u_longlong_t)ds->ds_num_children); 822 (void) printf("\t\tuserrefs_obj = %llu\n", 823 (u_longlong_t)ds->ds_userrefs_obj); 824 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 825 (void) printf("\t\tcreation_txg = %llu\n", 826 (u_longlong_t)ds->ds_creation_txg); 827 (void) printf("\t\tdeadlist_obj = %llu\n", 828 (u_longlong_t)ds->ds_deadlist_obj); 829 (void) printf("\t\tused_bytes = %s\n", used); 830 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 831 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 832 (void) printf("\t\tunique = %s\n", unique); 833 (void) printf("\t\tfsid_guid = %llu\n", 834 (u_longlong_t)ds->ds_fsid_guid); 835 (void) printf("\t\tguid = %llu\n", 836 (u_longlong_t)ds->ds_guid); 837 (void) printf("\t\tflags = %llx\n", 838 (u_longlong_t)ds->ds_flags); 839 (void) printf("\t\tnext_clones_obj = %llu\n", 840 (u_longlong_t)ds->ds_next_clones_obj); 841 (void) printf("\t\tprops_obj = %llu\n", 842 (u_longlong_t)ds->ds_props_obj); 843 (void) printf("\t\tbp = %s\n", blkbuf); 844 } 845 846 static void 847 dump_bplist(objset_t *mos, uint64_t object, char *name) 848 { 849 bplist_t bpl = { 0 }; 850 blkptr_t blk, *bp = &blk; 851 uint64_t itor = 0; 852 char bytes[6]; 853 char comp[6]; 854 char uncomp[6]; 855 856 if (dump_opt['d'] < 3) 857 return; 858 859 mutex_init(&bpl.bpl_lock, NULL, MUTEX_DEFAULT, NULL); 860 VERIFY(0 == bplist_open(&bpl, mos, object)); 861 if (bplist_empty(&bpl)) { 862 bplist_close(&bpl); 863 mutex_destroy(&bpl.bpl_lock); 864 return; 865 } 866 867 nicenum(bpl.bpl_phys->bpl_bytes, bytes); 868 if (bpl.bpl_dbuf->db_size == sizeof (bplist_phys_t)) { 869 nicenum(bpl.bpl_phys->bpl_comp, comp); 870 nicenum(bpl.bpl_phys->bpl_uncomp, uncomp); 871 (void) printf("\n %s: %llu entries, %s (%s/%s comp)\n", 872 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, 873 bytes, comp, uncomp); 874 } else { 875 (void) printf("\n %s: %llu entries, %s\n", 876 name, (u_longlong_t)bpl.bpl_phys->bpl_entries, bytes); 877 } 878 879 if (dump_opt['d'] < 5) { 880 bplist_close(&bpl); 881 mutex_destroy(&bpl.bpl_lock); 882 return; 883 } 884 885 (void) printf("\n"); 886 887 while (bplist_iterate(&bpl, &itor, bp) == 0) { 888 char blkbuf[BP_SPRINTF_LEN]; 889 890 ASSERT(bp->blk_birth != 0); 891 sprintf_blkptr_compact(blkbuf, bp, dump_opt['d'] > 5 ? 1 : 0); 892 (void) printf("\tItem %3llu: %s\n", 893 (u_longlong_t)itor - 1, blkbuf); 894 } 895 896 bplist_close(&bpl); 897 mutex_destroy(&bpl.bpl_lock); 898 } 899 900 static avl_tree_t idx_tree; 901 static avl_tree_t domain_tree; 902 static boolean_t fuid_table_loaded; 903 904 static void 905 fuid_table_destroy() 906 { 907 if (fuid_table_loaded) { 908 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 909 fuid_table_loaded = B_FALSE; 910 } 911 } 912 913 /* 914 * print uid or gid information. 915 * For normal POSIX id just the id is printed in decimal format. 916 * For CIFS files with FUID the fuid is printed in hex followed by 917 * the doman-rid string. 918 */ 919 static void 920 print_idstr(uint64_t id, const char *id_type) 921 { 922 if (FUID_INDEX(id)) { 923 char *domain; 924 925 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 926 (void) printf("\t%s %llx [%s-%d]\n", id_type, 927 (u_longlong_t)id, domain, (int)FUID_RID(id)); 928 } else { 929 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 930 } 931 932 } 933 934 static void 935 dump_uidgid(objset_t *os, znode_phys_t *zp) 936 { 937 uint32_t uid_idx, gid_idx; 938 939 uid_idx = FUID_INDEX(zp->zp_uid); 940 gid_idx = FUID_INDEX(zp->zp_gid); 941 942 /* Load domain table, if not already loaded */ 943 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 944 uint64_t fuid_obj; 945 946 /* first find the fuid object. It lives in the master node */ 947 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 948 8, 1, &fuid_obj) == 0); 949 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 950 (void) zfs_fuid_table_load(os, fuid_obj, 951 &idx_tree, &domain_tree); 952 fuid_table_loaded = B_TRUE; 953 } 954 955 print_idstr(zp->zp_uid, "uid"); 956 print_idstr(zp->zp_gid, "gid"); 957 } 958 959 /*ARGSUSED*/ 960 static void 961 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 962 { 963 znode_phys_t *zp = data; 964 time_t z_crtime, z_atime, z_mtime, z_ctime; 965 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 966 int error; 967 968 ASSERT(size >= sizeof (znode_phys_t)); 969 970 error = zfs_obj_to_path(os, object, path, sizeof (path)); 971 if (error != 0) { 972 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 973 (u_longlong_t)object); 974 } 975 976 if (dump_opt['d'] < 3) { 977 (void) printf("\t%s\n", path); 978 return; 979 } 980 981 z_crtime = (time_t)zp->zp_crtime[0]; 982 z_atime = (time_t)zp->zp_atime[0]; 983 z_mtime = (time_t)zp->zp_mtime[0]; 984 z_ctime = (time_t)zp->zp_ctime[0]; 985 986 (void) printf("\tpath %s\n", path); 987 dump_uidgid(os, zp); 988 (void) printf("\tatime %s", ctime(&z_atime)); 989 (void) printf("\tmtime %s", ctime(&z_mtime)); 990 (void) printf("\tctime %s", ctime(&z_ctime)); 991 (void) printf("\tcrtime %s", ctime(&z_crtime)); 992 (void) printf("\tgen %llu\n", (u_longlong_t)zp->zp_gen); 993 (void) printf("\tmode %llo\n", (u_longlong_t)zp->zp_mode); 994 (void) printf("\tsize %llu\n", (u_longlong_t)zp->zp_size); 995 (void) printf("\tparent %llu\n", (u_longlong_t)zp->zp_parent); 996 (void) printf("\tlinks %llu\n", (u_longlong_t)zp->zp_links); 997 (void) printf("\txattr %llu\n", (u_longlong_t)zp->zp_xattr); 998 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)zp->zp_rdev); 999 } 1000 1001 /*ARGSUSED*/ 1002 static void 1003 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1004 { 1005 } 1006 1007 /*ARGSUSED*/ 1008 static void 1009 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1010 { 1011 } 1012 1013 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES] = { 1014 dump_none, /* unallocated */ 1015 dump_zap, /* object directory */ 1016 dump_uint64, /* object array */ 1017 dump_none, /* packed nvlist */ 1018 dump_packed_nvlist, /* packed nvlist size */ 1019 dump_none, /* bplist */ 1020 dump_none, /* bplist header */ 1021 dump_none, /* SPA space map header */ 1022 dump_none, /* SPA space map */ 1023 dump_none, /* ZIL intent log */ 1024 dump_dnode, /* DMU dnode */ 1025 dump_dmu_objset, /* DMU objset */ 1026 dump_dsl_dir, /* DSL directory */ 1027 dump_zap, /* DSL directory child map */ 1028 dump_zap, /* DSL dataset snap map */ 1029 dump_zap, /* DSL props */ 1030 dump_dsl_dataset, /* DSL dataset */ 1031 dump_znode, /* ZFS znode */ 1032 dump_acl, /* ZFS V0 ACL */ 1033 dump_uint8, /* ZFS plain file */ 1034 dump_zpldir, /* ZFS directory */ 1035 dump_zap, /* ZFS master node */ 1036 dump_zap, /* ZFS delete queue */ 1037 dump_uint8, /* zvol object */ 1038 dump_zap, /* zvol prop */ 1039 dump_uint8, /* other uint8[] */ 1040 dump_uint64, /* other uint64[] */ 1041 dump_zap, /* other ZAP */ 1042 dump_zap, /* persistent error log */ 1043 dump_uint8, /* SPA history */ 1044 dump_uint64, /* SPA history offsets */ 1045 dump_zap, /* Pool properties */ 1046 dump_zap, /* DSL permissions */ 1047 dump_acl, /* ZFS ACL */ 1048 dump_uint8, /* ZFS SYSACL */ 1049 dump_none, /* FUID nvlist */ 1050 dump_packed_nvlist, /* FUID nvlist size */ 1051 dump_zap, /* DSL dataset next clones */ 1052 dump_zap, /* DSL scrub queue */ 1053 dump_zap, /* ZFS user/group used */ 1054 dump_zap, /* ZFS user/group quota */ 1055 dump_zap, /* snapshot refcount tags */ 1056 }; 1057 1058 static void 1059 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1060 { 1061 dmu_buf_t *db = NULL; 1062 dmu_object_info_t doi; 1063 dnode_t *dn; 1064 void *bonus = NULL; 1065 size_t bsize = 0; 1066 char iblk[6], dblk[6], lsize[6], asize[6], bonus_size[6], segsize[6]; 1067 char aux[50]; 1068 int error; 1069 1070 if (*print_header) { 1071 (void) printf("\n Object lvl iblk dblk lsize" 1072 " asize type\n"); 1073 *print_header = 0; 1074 } 1075 1076 if (object == 0) { 1077 dn = os->os_meta_dnode; 1078 } else { 1079 error = dmu_bonus_hold(os, object, FTAG, &db); 1080 if (error) 1081 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1082 object, error); 1083 bonus = db->db_data; 1084 bsize = db->db_size; 1085 dn = ((dmu_buf_impl_t *)db)->db_dnode; 1086 } 1087 dmu_object_info_from_dnode(dn, &doi); 1088 1089 nicenum(doi.doi_metadata_block_size, iblk); 1090 nicenum(doi.doi_data_block_size, dblk); 1091 nicenum(doi.doi_data_block_size * (doi.doi_max_block_offset + 1), 1092 lsize); 1093 nicenum(doi.doi_physical_blks << 9, asize); 1094 nicenum(doi.doi_bonus_size, bonus_size); 1095 1096 aux[0] = '\0'; 1097 1098 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1099 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1100 zio_checksum_table[doi.doi_checksum].ci_name); 1101 } 1102 1103 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1104 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1105 zio_compress_table[doi.doi_compress].ci_name); 1106 } 1107 1108 (void) printf("%10lld %3u %5s %5s %5s %5s %s%s\n", 1109 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, lsize, 1110 asize, dmu_ot[doi.doi_type].ot_name, aux); 1111 1112 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1113 (void) printf("%10s %3s %5s %5s %5s %5s %s\n", 1114 "", "", "", "", bonus_size, "bonus", 1115 dmu_ot[doi.doi_bonus_type].ot_name); 1116 } 1117 1118 if (verbosity >= 4) { 1119 (void) printf("\tdnode flags: %s%s\n", 1120 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1121 "USED_BYTES " : "", 1122 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1123 "USERUSED_ACCOUNTED " : ""); 1124 (void) printf("\tdnode maxblkid: %llu\n", 1125 (longlong_t)dn->dn_phys->dn_maxblkid); 1126 1127 object_viewer[doi.doi_bonus_type](os, object, bonus, bsize); 1128 object_viewer[doi.doi_type](os, object, NULL, 0); 1129 *print_header = 1; 1130 } 1131 1132 if (verbosity >= 5) 1133 dump_indirect(dn); 1134 1135 if (verbosity >= 5) { 1136 /* 1137 * Report the list of segments that comprise the object. 1138 */ 1139 uint64_t start = 0; 1140 uint64_t end; 1141 uint64_t blkfill = 1; 1142 int minlvl = 1; 1143 1144 if (dn->dn_type == DMU_OT_DNODE) { 1145 minlvl = 0; 1146 blkfill = DNODES_PER_BLOCK; 1147 } 1148 1149 for (;;) { 1150 error = dnode_next_offset(dn, 1151 0, &start, minlvl, blkfill, 0); 1152 if (error) 1153 break; 1154 end = start; 1155 error = dnode_next_offset(dn, 1156 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1157 nicenum(end - start, segsize); 1158 (void) printf("\t\tsegment [%016llx, %016llx)" 1159 " size %5s\n", (u_longlong_t)start, 1160 (u_longlong_t)end, segsize); 1161 if (error) 1162 break; 1163 start = end; 1164 } 1165 } 1166 1167 if (db != NULL) 1168 dmu_buf_rele(db, FTAG); 1169 } 1170 1171 static char *objset_types[DMU_OST_NUMTYPES] = { 1172 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1173 1174 static void 1175 dump_dir(objset_t *os) 1176 { 1177 dmu_objset_stats_t dds; 1178 uint64_t object, object_count; 1179 uint64_t refdbytes, usedobjs, scratch; 1180 char numbuf[8]; 1181 char blkbuf[BP_SPRINTF_LEN + 20]; 1182 char osname[MAXNAMELEN]; 1183 char *type = "UNKNOWN"; 1184 int verbosity = dump_opt['d']; 1185 int print_header = 1; 1186 int i, error; 1187 1188 dmu_objset_fast_stat(os, &dds); 1189 1190 if (dds.dds_type < DMU_OST_NUMTYPES) 1191 type = objset_types[dds.dds_type]; 1192 1193 if (dds.dds_type == DMU_OST_META) { 1194 dds.dds_creation_txg = TXG_INITIAL; 1195 usedobjs = os->os_rootbp->blk_fill; 1196 refdbytes = os->os_spa->spa_dsl_pool-> 1197 dp_mos_dir->dd_phys->dd_used_bytes; 1198 } else { 1199 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1200 } 1201 1202 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); 1203 1204 nicenum(refdbytes, numbuf); 1205 1206 if (verbosity >= 4) { 1207 (void) sprintf(blkbuf, ", rootbp "); 1208 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), 1209 BP_SPRINTF_LEN - strlen(blkbuf), os->os_rootbp); 1210 } else { 1211 blkbuf[0] = '\0'; 1212 } 1213 1214 dmu_objset_name(os, osname); 1215 1216 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1217 "%s, %llu objects%s\n", 1218 osname, type, (u_longlong_t)dmu_objset_id(os), 1219 (u_longlong_t)dds.dds_creation_txg, 1220 numbuf, (u_longlong_t)usedobjs, blkbuf); 1221 1222 dump_intent_log(dmu_objset_zil(os)); 1223 1224 if (dmu_objset_ds(os) != NULL) 1225 dump_bplist(dmu_objset_pool(os)->dp_meta_objset, 1226 dmu_objset_ds(os)->ds_phys->ds_deadlist_obj, "Deadlist"); 1227 1228 if (verbosity < 2) 1229 return; 1230 1231 if (os->os_rootbp->blk_birth == 0) 1232 return; 1233 1234 if (zopt_objects != 0) { 1235 for (i = 0; i < zopt_objects; i++) 1236 dump_object(os, zopt_object[i], verbosity, 1237 &print_header); 1238 (void) printf("\n"); 1239 return; 1240 } 1241 1242 dump_object(os, 0, verbosity, &print_header); 1243 object_count = 0; 1244 if (os->os_userused_dnode && 1245 os->os_userused_dnode->dn_type != 0) { 1246 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1247 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1248 } 1249 1250 object = 0; 1251 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1252 dump_object(os, object, verbosity, &print_header); 1253 object_count++; 1254 } 1255 1256 ASSERT3U(object_count, ==, usedobjs); 1257 1258 (void) printf("\n"); 1259 1260 if (error != ESRCH) { 1261 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1262 abort(); 1263 } 1264 } 1265 1266 static void 1267 dump_uberblock(uberblock_t *ub) 1268 { 1269 time_t timestamp = ub->ub_timestamp; 1270 1271 (void) printf("Uberblock\n\n"); 1272 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1273 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1274 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1275 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1276 (void) printf("\ttimestamp = %llu UTC = %s", 1277 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1278 if (dump_opt['u'] >= 3) { 1279 char blkbuf[BP_SPRINTF_LEN]; 1280 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &ub->ub_rootbp); 1281 (void) printf("\trootbp = %s\n", blkbuf); 1282 } 1283 (void) printf("\n"); 1284 } 1285 1286 static void 1287 dump_config(const char *pool) 1288 { 1289 spa_t *spa = NULL; 1290 1291 mutex_enter(&spa_namespace_lock); 1292 while ((spa = spa_next(spa)) != NULL) { 1293 if (pool == NULL) 1294 (void) printf("%s\n", spa_name(spa)); 1295 if (pool == NULL || strcmp(pool, spa_name(spa)) == 0) 1296 dump_nvlist(spa->spa_config, 4); 1297 } 1298 mutex_exit(&spa_namespace_lock); 1299 } 1300 1301 static void 1302 dump_cachefile(const char *cachefile) 1303 { 1304 int fd; 1305 struct stat64 statbuf; 1306 char *buf; 1307 nvlist_t *config; 1308 1309 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1310 (void) printf("cannot open '%s': %s\n", cachefile, 1311 strerror(errno)); 1312 exit(1); 1313 } 1314 1315 if (fstat64(fd, &statbuf) != 0) { 1316 (void) printf("failed to stat '%s': %s\n", cachefile, 1317 strerror(errno)); 1318 exit(1); 1319 } 1320 1321 if ((buf = malloc(statbuf.st_size)) == NULL) { 1322 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1323 (u_longlong_t)statbuf.st_size); 1324 exit(1); 1325 } 1326 1327 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1328 (void) fprintf(stderr, "failed to read %llu bytes\n", 1329 (u_longlong_t)statbuf.st_size); 1330 exit(1); 1331 } 1332 1333 (void) close(fd); 1334 1335 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1336 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1337 exit(1); 1338 } 1339 1340 free(buf); 1341 1342 dump_nvlist(config, 0); 1343 1344 nvlist_free(config); 1345 } 1346 1347 static void 1348 dump_label(const char *dev) 1349 { 1350 int fd; 1351 vdev_label_t label; 1352 char *buf = label.vl_vdev_phys.vp_nvlist; 1353 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1354 struct stat64 statbuf; 1355 uint64_t psize; 1356 int l; 1357 1358 if ((fd = open64(dev, O_RDONLY)) < 0) { 1359 (void) printf("cannot open '%s': %s\n", dev, strerror(errno)); 1360 exit(1); 1361 } 1362 1363 if (fstat64(fd, &statbuf) != 0) { 1364 (void) printf("failed to stat '%s': %s\n", dev, 1365 strerror(errno)); 1366 exit(1); 1367 } 1368 1369 psize = statbuf.st_size; 1370 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 1371 1372 for (l = 0; l < VDEV_LABELS; l++) { 1373 1374 nvlist_t *config = NULL; 1375 1376 (void) printf("--------------------------------------------\n"); 1377 (void) printf("LABEL %d\n", l); 1378 (void) printf("--------------------------------------------\n"); 1379 1380 if (pread64(fd, &label, sizeof (label), 1381 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 1382 (void) printf("failed to read label %d\n", l); 1383 continue; 1384 } 1385 1386 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 1387 (void) printf("failed to unpack label %d\n", l); 1388 continue; 1389 } 1390 dump_nvlist(config, 4); 1391 nvlist_free(config); 1392 } 1393 } 1394 1395 /*ARGSUSED*/ 1396 static int 1397 dump_one_dir(char *dsname, void *arg) 1398 { 1399 int error; 1400 objset_t *os; 1401 1402 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 1403 if (error) { 1404 (void) printf("Could not open %s\n", dsname); 1405 return (0); 1406 } 1407 dump_dir(os); 1408 dmu_objset_disown(os, FTAG); 1409 fuid_table_destroy(); 1410 return (0); 1411 } 1412 1413 static void 1414 zdb_leak(space_map_t *sm, uint64_t start, uint64_t size) 1415 { 1416 vdev_t *vd = sm->sm_ppd; 1417 1418 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 1419 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 1420 } 1421 1422 /* ARGSUSED */ 1423 static void 1424 zdb_space_map_load(space_map_t *sm) 1425 { 1426 } 1427 1428 static void 1429 zdb_space_map_unload(space_map_t *sm) 1430 { 1431 space_map_vacate(sm, zdb_leak, sm); 1432 } 1433 1434 /* ARGSUSED */ 1435 static void 1436 zdb_space_map_claim(space_map_t *sm, uint64_t start, uint64_t size) 1437 { 1438 } 1439 1440 static space_map_ops_t zdb_space_map_ops = { 1441 zdb_space_map_load, 1442 zdb_space_map_unload, 1443 NULL, /* alloc */ 1444 zdb_space_map_claim, 1445 NULL, /* free */ 1446 NULL /* maxsize */ 1447 }; 1448 1449 static void 1450 zdb_leak_init(spa_t *spa) 1451 { 1452 vdev_t *rvd = spa->spa_root_vdev; 1453 1454 for (int c = 0; c < rvd->vdev_children; c++) { 1455 vdev_t *vd = rvd->vdev_child[c]; 1456 for (int m = 0; m < vd->vdev_ms_count; m++) { 1457 metaslab_t *msp = vd->vdev_ms[m]; 1458 mutex_enter(&msp->ms_lock); 1459 VERIFY(space_map_load(&msp->ms_map, &zdb_space_map_ops, 1460 SM_ALLOC, &msp->ms_smo, spa->spa_meta_objset) == 0); 1461 msp->ms_map.sm_ppd = vd; 1462 mutex_exit(&msp->ms_lock); 1463 } 1464 } 1465 } 1466 1467 static void 1468 zdb_leak_fini(spa_t *spa) 1469 { 1470 vdev_t *rvd = spa->spa_root_vdev; 1471 1472 for (int c = 0; c < rvd->vdev_children; c++) { 1473 vdev_t *vd = rvd->vdev_child[c]; 1474 for (int m = 0; m < vd->vdev_ms_count; m++) { 1475 metaslab_t *msp = vd->vdev_ms[m]; 1476 mutex_enter(&msp->ms_lock); 1477 space_map_unload(&msp->ms_map); 1478 mutex_exit(&msp->ms_lock); 1479 } 1480 } 1481 } 1482 1483 /* 1484 * Verify that the sum of the sizes of all blocks in the pool adds up 1485 * to the SPA's sa_alloc total. 1486 */ 1487 typedef struct zdb_blkstats { 1488 uint64_t zb_asize; 1489 uint64_t zb_lsize; 1490 uint64_t zb_psize; 1491 uint64_t zb_count; 1492 } zdb_blkstats_t; 1493 1494 #define DMU_OT_DEFERRED DMU_OT_NONE 1495 #define DMU_OT_TOTAL DMU_OT_NUMTYPES 1496 1497 #define ZB_TOTAL DN_MAX_LEVELS 1498 1499 typedef struct zdb_cb { 1500 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][DMU_OT_TOTAL + 1]; 1501 uint64_t zcb_errors[256]; 1502 int zcb_readfails; 1503 int zcb_haderrors; 1504 } zdb_cb_t; 1505 1506 static void 1507 zdb_count_block(spa_t *spa, zdb_cb_t *zcb, blkptr_t *bp, dmu_object_type_t type) 1508 { 1509 for (int i = 0; i < 4; i++) { 1510 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 1511 int t = (i & 1) ? type : DMU_OT_TOTAL; 1512 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 1513 1514 zb->zb_asize += BP_GET_ASIZE(bp); 1515 zb->zb_lsize += BP_GET_LSIZE(bp); 1516 zb->zb_psize += BP_GET_PSIZE(bp); 1517 zb->zb_count++; 1518 } 1519 1520 if (dump_opt['S']) { 1521 boolean_t print_sig; 1522 1523 print_sig = !zdb_sig_user_data || (BP_GET_LEVEL(bp) == 0 && 1524 BP_GET_TYPE(bp) == DMU_OT_PLAIN_FILE_CONTENTS); 1525 1526 if (BP_GET_CHECKSUM(bp) < zdb_sig_cksumalg) 1527 print_sig = B_FALSE; 1528 1529 if (print_sig) { 1530 (void) printf("%llu\t%lld\t%lld\t%s\t%s\t%s\t" 1531 "%llx:%llx:%llx:%llx\n", 1532 (u_longlong_t)BP_GET_LEVEL(bp), 1533 (longlong_t)BP_GET_PSIZE(bp), 1534 (longlong_t)BP_GET_NDVAS(bp), 1535 dmu_ot[BP_GET_TYPE(bp)].ot_name, 1536 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1537 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name, 1538 (u_longlong_t)bp->blk_cksum.zc_word[0], 1539 (u_longlong_t)bp->blk_cksum.zc_word[1], 1540 (u_longlong_t)bp->blk_cksum.zc_word[2], 1541 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1542 } 1543 } 1544 1545 if (!dump_opt['L']) 1546 VERIFY(zio_wait(zio_claim(NULL, spa, spa_first_txg(spa), bp, 1547 NULL, NULL, ZIO_FLAG_MUSTSUCCEED)) == 0); 1548 } 1549 1550 static int 1551 zdb_blkptr_cb(spa_t *spa, blkptr_t *bp, const zbookmark_t *zb, 1552 const dnode_phys_t *dnp, void *arg) 1553 { 1554 zdb_cb_t *zcb = arg; 1555 char blkbuf[BP_SPRINTF_LEN]; 1556 dmu_object_type_t type; 1557 boolean_t is_l0_metadata; 1558 1559 if (bp == NULL) 1560 return (0); 1561 1562 type = BP_GET_TYPE(bp); 1563 1564 zdb_count_block(spa, zcb, bp, type); 1565 1566 /* 1567 * if we do metadata-only checksumming there's no need to checksum 1568 * indirect blocks here because it is done during traverse 1569 */ 1570 is_l0_metadata = (BP_GET_LEVEL(bp) == 0 && type < DMU_OT_NUMTYPES && 1571 dmu_ot[type].ot_metadata); 1572 1573 if (dump_opt['c'] > 1 || dump_opt['S'] || 1574 (dump_opt['c'] && is_l0_metadata)) { 1575 int ioerr, size; 1576 void *data; 1577 1578 size = BP_GET_LSIZE(bp); 1579 data = malloc(size); 1580 ioerr = zio_wait(zio_read(NULL, spa, bp, data, size, 1581 NULL, NULL, ZIO_PRIORITY_ASYNC_READ, 1582 ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB, zb)); 1583 free(data); 1584 1585 /* We expect io errors on intent log */ 1586 if (ioerr && type != DMU_OT_INTENT_LOG) { 1587 zcb->zcb_haderrors = 1; 1588 zcb->zcb_errors[ioerr]++; 1589 1590 if (dump_opt['b'] >= 2) 1591 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1592 else 1593 blkbuf[0] = '\0'; 1594 1595 if (!dump_opt['S']) { 1596 (void) printf("zdb_blkptr_cb: " 1597 "Got error %d reading " 1598 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 1599 ioerr, 1600 (u_longlong_t)zb->zb_objset, 1601 (u_longlong_t)zb->zb_object, 1602 (u_longlong_t)zb->zb_level, 1603 (u_longlong_t)zb->zb_blkid, 1604 blkbuf); 1605 } 1606 } 1607 } 1608 1609 zcb->zcb_readfails = 0; 1610 1611 if (dump_opt['b'] >= 4) { 1612 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, bp); 1613 (void) printf("objset %llu object %llu offset 0x%llx %s\n", 1614 (u_longlong_t)zb->zb_objset, 1615 (u_longlong_t)zb->zb_object, 1616 (u_longlong_t)blkid2offset(dnp, zb->zb_level, zb->zb_blkid), 1617 blkbuf); 1618 } 1619 1620 return (0); 1621 } 1622 1623 static int 1624 dump_block_stats(spa_t *spa) 1625 { 1626 zdb_cb_t zcb = { 0 }; 1627 zdb_blkstats_t *zb, *tzb; 1628 uint64_t alloc, space, logalloc; 1629 vdev_t *rvd = spa->spa_root_vdev; 1630 int leaks = 0; 1631 int c, e; 1632 1633 if (!dump_opt['S']) { 1634 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n", 1635 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 1636 (dump_opt['c'] == 1) ? "metadata " : "", 1637 dump_opt['c'] ? "checksums " : "", 1638 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 1639 !dump_opt['L'] ? "nothing leaked " : ""); 1640 } 1641 1642 /* 1643 * Load all space maps as SM_ALLOC maps, then traverse the pool 1644 * claiming each block we discover. If the pool is perfectly 1645 * consistent, the space maps will be empty when we're done. 1646 * Anything left over is a leak; any block we can't claim (because 1647 * it's not part of any space map) is a double allocation, 1648 * reference to a freed block, or an unclaimed log block. 1649 */ 1650 if (!dump_opt['L']) 1651 zdb_leak_init(spa); 1652 1653 /* 1654 * If there's a deferred-free bplist, process that first. 1655 */ 1656 if (spa->spa_sync_bplist_obj != 0) { 1657 bplist_t *bpl = &spa->spa_sync_bplist; 1658 blkptr_t blk; 1659 uint64_t itor = 0; 1660 1661 VERIFY(0 == bplist_open(bpl, spa->spa_meta_objset, 1662 spa->spa_sync_bplist_obj)); 1663 1664 while (bplist_iterate(bpl, &itor, &blk) == 0) { 1665 if (dump_opt['b'] >= 4) { 1666 char blkbuf[BP_SPRINTF_LEN]; 1667 sprintf_blkptr(blkbuf, BP_SPRINTF_LEN, &blk); 1668 (void) printf("[%s] %s\n", 1669 "deferred free", blkbuf); 1670 } 1671 zdb_count_block(spa, &zcb, &blk, DMU_OT_DEFERRED); 1672 } 1673 1674 bplist_close(bpl); 1675 } 1676 1677 zcb.zcb_haderrors |= traverse_pool(spa, zdb_blkptr_cb, &zcb); 1678 1679 if (zcb.zcb_haderrors && !dump_opt['S']) { 1680 (void) printf("\nError counts:\n\n"); 1681 (void) printf("\t%5s %s\n", "errno", "count"); 1682 for (e = 0; e < 256; e++) { 1683 if (zcb.zcb_errors[e] != 0) { 1684 (void) printf("\t%5d %llu\n", 1685 e, (u_longlong_t)zcb.zcb_errors[e]); 1686 } 1687 } 1688 } 1689 1690 /* 1691 * Report any leaked segments. 1692 */ 1693 if (!dump_opt['L']) 1694 zdb_leak_fini(spa); 1695 1696 /* 1697 * If we're interested in printing out the blkptr signatures, 1698 * return now as we don't print out anything else (including 1699 * errors and leaks). 1700 */ 1701 if (dump_opt['S']) 1702 return (zcb.zcb_haderrors ? 3 : 0); 1703 1704 alloc = spa_get_alloc(spa); 1705 space = spa_get_space(spa); 1706 1707 /* 1708 * Log blocks allocated from a separate log device don't count 1709 * as part of the normal pool space; factor them in here. 1710 */ 1711 logalloc = 0; 1712 1713 for (c = 0; c < rvd->vdev_children; c++) 1714 if (rvd->vdev_child[c]->vdev_islog) 1715 logalloc += rvd->vdev_child[c]->vdev_stat.vs_alloc; 1716 1717 tzb = &zcb.zcb_type[ZB_TOTAL][DMU_OT_TOTAL]; 1718 1719 if (tzb->zb_asize == alloc + logalloc) { 1720 if (!dump_opt['L']) 1721 (void) printf("\n\tNo leaks (block sum matches space" 1722 " maps exactly)\n"); 1723 } else { 1724 (void) printf("block traversal size %llu != alloc %llu " 1725 "(%s %lld)\n", 1726 (u_longlong_t)tzb->zb_asize, 1727 (u_longlong_t)alloc + logalloc, 1728 (dump_opt['L']) ? "unreachable" : "leaked", 1729 (longlong_t)(alloc + logalloc - tzb->zb_asize)); 1730 leaks = 1; 1731 } 1732 1733 if (tzb->zb_count == 0) 1734 return (2); 1735 1736 (void) printf("\n"); 1737 (void) printf("\tbp count: %10llu\n", 1738 (u_longlong_t)tzb->zb_count); 1739 (void) printf("\tbp logical: %10llu\t avg: %6llu\n", 1740 (u_longlong_t)tzb->zb_lsize, 1741 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 1742 (void) printf("\tbp physical: %10llu\t avg:" 1743 " %6llu\tcompression: %6.2f\n", 1744 (u_longlong_t)tzb->zb_psize, 1745 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 1746 (double)tzb->zb_lsize / tzb->zb_psize); 1747 (void) printf("\tbp allocated: %10llu\t avg:" 1748 " %6llu\tcompression: %6.2f\n", 1749 (u_longlong_t)tzb->zb_asize, 1750 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 1751 (double)tzb->zb_lsize / tzb->zb_asize); 1752 (void) printf("\tSPA allocated: %10llu\tused: %5.2f%%\n", 1753 (u_longlong_t)alloc, 100.0 * alloc / space); 1754 1755 if (dump_opt['b'] >= 2) { 1756 int l, t, level; 1757 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 1758 "\t avg\t comp\t%%Total\tType\n"); 1759 1760 for (t = 0; t <= DMU_OT_NUMTYPES; t++) { 1761 char csize[6], lsize[6], psize[6], asize[6], avg[6]; 1762 char *typename; 1763 1764 typename = t == DMU_OT_DEFERRED ? "deferred free" : 1765 t == DMU_OT_TOTAL ? "Total" : dmu_ot[t].ot_name; 1766 1767 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 1768 (void) printf("%6s\t%5s\t%5s\t%5s" 1769 "\t%5s\t%5s\t%6s\t%s\n", 1770 "-", 1771 "-", 1772 "-", 1773 "-", 1774 "-", 1775 "-", 1776 "-", 1777 typename); 1778 continue; 1779 } 1780 1781 for (l = ZB_TOTAL - 1; l >= -1; l--) { 1782 level = (l == -1 ? ZB_TOTAL : l); 1783 zb = &zcb.zcb_type[level][t]; 1784 1785 if (zb->zb_asize == 0) 1786 continue; 1787 1788 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 1789 continue; 1790 1791 if (level == 0 && zb->zb_asize == 1792 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 1793 continue; 1794 1795 nicenum(zb->zb_count, csize); 1796 nicenum(zb->zb_lsize, lsize); 1797 nicenum(zb->zb_psize, psize); 1798 nicenum(zb->zb_asize, asize); 1799 nicenum(zb->zb_asize / zb->zb_count, avg); 1800 1801 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 1802 "\t%5.2f\t%6.2f\t", 1803 csize, lsize, psize, asize, avg, 1804 (double)zb->zb_lsize / zb->zb_psize, 1805 100.0 * zb->zb_asize / tzb->zb_asize); 1806 1807 if (level == ZB_TOTAL) 1808 (void) printf("%s\n", typename); 1809 else 1810 (void) printf(" L%d %s\n", 1811 level, typename); 1812 } 1813 } 1814 } 1815 1816 (void) printf("\n"); 1817 1818 if (leaks) 1819 return (2); 1820 1821 if (zcb.zcb_haderrors) 1822 return (3); 1823 1824 return (0); 1825 } 1826 1827 static void 1828 dump_zpool(spa_t *spa) 1829 { 1830 dsl_pool_t *dp = spa_get_dsl(spa); 1831 int rc = 0; 1832 1833 if (dump_opt['u']) 1834 dump_uberblock(&spa->spa_uberblock); 1835 1836 if (dump_opt['d'] || dump_opt['i'] || dump_opt['m']) { 1837 dump_dir(dp->dp_meta_objset); 1838 if (dump_opt['d'] >= 3) { 1839 dump_bplist(dp->dp_meta_objset, 1840 spa->spa_sync_bplist_obj, "Deferred frees"); 1841 dump_dtl(spa->spa_root_vdev, 0); 1842 } 1843 1844 if (dump_opt['d'] >= 3 || dump_opt['m']) 1845 dump_metaslabs(spa); 1846 1847 (void) dmu_objset_find(spa_name(spa), dump_one_dir, NULL, 1848 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 1849 } 1850 1851 if (dump_opt['b'] || dump_opt['c'] || dump_opt['S']) 1852 rc = dump_block_stats(spa); 1853 1854 if (dump_opt['s']) 1855 show_pool_stats(spa); 1856 1857 if (dump_opt['h']) 1858 dump_history(spa); 1859 1860 if (rc != 0) 1861 exit(rc); 1862 } 1863 1864 #define ZDB_FLAG_CHECKSUM 0x0001 1865 #define ZDB_FLAG_DECOMPRESS 0x0002 1866 #define ZDB_FLAG_BSWAP 0x0004 1867 #define ZDB_FLAG_GBH 0x0008 1868 #define ZDB_FLAG_INDIRECT 0x0010 1869 #define ZDB_FLAG_PHYS 0x0020 1870 #define ZDB_FLAG_RAW 0x0040 1871 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 1872 1873 int flagbits[256]; 1874 1875 static void 1876 zdb_print_blkptr(blkptr_t *bp, int flags) 1877 { 1878 dva_t *dva = bp->blk_dva; 1879 int d; 1880 1881 if (flags & ZDB_FLAG_BSWAP) 1882 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 1883 /* 1884 * Super-ick warning: This code is also duplicated in 1885 * cmd/mdb/common/modules/zfs/zfs.c . Yeah, I hate code 1886 * replication, too. 1887 */ 1888 for (d = 0; d < BP_GET_NDVAS(bp); d++) { 1889 (void) printf("\tDVA[%d]: vdev_id %lld / %llx\n", d, 1890 (longlong_t)DVA_GET_VDEV(&dva[d]), 1891 (longlong_t)DVA_GET_OFFSET(&dva[d])); 1892 (void) printf("\tDVA[%d]: GANG: %-5s GRID: %04llx\t" 1893 "ASIZE: %llx\n", d, 1894 DVA_GET_GANG(&dva[d]) ? "TRUE" : "FALSE", 1895 (longlong_t)DVA_GET_GRID(&dva[d]), 1896 (longlong_t)DVA_GET_ASIZE(&dva[d])); 1897 (void) printf("\tDVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", d, 1898 (u_longlong_t)DVA_GET_VDEV(&dva[d]), 1899 (longlong_t)DVA_GET_OFFSET(&dva[d]), 1900 (longlong_t)BP_GET_PSIZE(bp), 1901 BP_SHOULD_BYTESWAP(bp) ? "e" : "", 1902 !DVA_GET_GANG(&dva[d]) && BP_GET_LEVEL(bp) != 0 ? 1903 "d" : "", 1904 DVA_GET_GANG(&dva[d]) ? "g" : "", 1905 BP_GET_COMPRESS(bp) != 0 ? "d" : ""); 1906 } 1907 (void) printf("\tLSIZE: %-16llx\t\tPSIZE: %llx\n", 1908 (longlong_t)BP_GET_LSIZE(bp), (longlong_t)BP_GET_PSIZE(bp)); 1909 (void) printf("\tENDIAN: %6s\t\t\t\t\tTYPE: %s\n", 1910 BP_GET_BYTEORDER(bp) ? "LITTLE" : "BIG", 1911 dmu_ot[BP_GET_TYPE(bp)].ot_name); 1912 (void) printf("\tBIRTH: %-16llx LEVEL: %-2llu\tFILL: %llx\n", 1913 (u_longlong_t)bp->blk_birth, (u_longlong_t)BP_GET_LEVEL(bp), 1914 (u_longlong_t)bp->blk_fill); 1915 (void) printf("\tCKFUNC: %-16s\t\tCOMP: %s\n", 1916 zio_checksum_table[BP_GET_CHECKSUM(bp)].ci_name, 1917 zio_compress_table[BP_GET_COMPRESS(bp)].ci_name); 1918 (void) printf("\tCKSUM: %llx:%llx:%llx:%llx\n", 1919 (u_longlong_t)bp->blk_cksum.zc_word[0], 1920 (u_longlong_t)bp->blk_cksum.zc_word[1], 1921 (u_longlong_t)bp->blk_cksum.zc_word[2], 1922 (u_longlong_t)bp->blk_cksum.zc_word[3]); 1923 } 1924 1925 static void 1926 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 1927 { 1928 int i; 1929 1930 for (i = 0; i < nbps; i++) 1931 zdb_print_blkptr(&bp[i], flags); 1932 } 1933 1934 static void 1935 zdb_dump_gbh(void *buf, int flags) 1936 { 1937 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 1938 } 1939 1940 static void 1941 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 1942 { 1943 if (flags & ZDB_FLAG_BSWAP) 1944 byteswap_uint64_array(buf, size); 1945 (void) write(2, buf, size); 1946 } 1947 1948 static void 1949 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 1950 { 1951 uint64_t *d = (uint64_t *)buf; 1952 int nwords = size / sizeof (uint64_t); 1953 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 1954 int i, j; 1955 char *hdr, *c; 1956 1957 1958 if (do_bswap) 1959 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 1960 else 1961 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 1962 1963 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 1964 1965 for (i = 0; i < nwords; i += 2) { 1966 (void) printf("%06llx: %016llx %016llx ", 1967 (u_longlong_t)(i * sizeof (uint64_t)), 1968 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 1969 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 1970 1971 c = (char *)&d[i]; 1972 for (j = 0; j < 2 * sizeof (uint64_t); j++) 1973 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 1974 (void) printf("\n"); 1975 } 1976 } 1977 1978 /* 1979 * There are two acceptable formats: 1980 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 1981 * child[.child]* - For example: 0.1.1 1982 * 1983 * The second form can be used to specify arbitrary vdevs anywhere 1984 * in the heirarchy. For example, in a pool with a mirror of 1985 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 1986 */ 1987 static vdev_t * 1988 zdb_vdev_lookup(vdev_t *vdev, char *path) 1989 { 1990 char *s, *p, *q; 1991 int i; 1992 1993 if (vdev == NULL) 1994 return (NULL); 1995 1996 /* First, assume the x.x.x.x format */ 1997 i = (int)strtoul(path, &s, 10); 1998 if (s == path || (s && *s != '.' && *s != '\0')) 1999 goto name; 2000 if (i < 0 || i >= vdev->vdev_children) 2001 return (NULL); 2002 2003 vdev = vdev->vdev_child[i]; 2004 if (*s == '\0') 2005 return (vdev); 2006 return (zdb_vdev_lookup(vdev, s+1)); 2007 2008 name: 2009 for (i = 0; i < vdev->vdev_children; i++) { 2010 vdev_t *vc = vdev->vdev_child[i]; 2011 2012 if (vc->vdev_path == NULL) { 2013 vc = zdb_vdev_lookup(vc, path); 2014 if (vc == NULL) 2015 continue; 2016 else 2017 return (vc); 2018 } 2019 2020 p = strrchr(vc->vdev_path, '/'); 2021 p = p ? p + 1 : vc->vdev_path; 2022 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2023 2024 if (strcmp(vc->vdev_path, path) == 0) 2025 return (vc); 2026 if (strcmp(p, path) == 0) 2027 return (vc); 2028 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2029 return (vc); 2030 } 2031 2032 return (NULL); 2033 } 2034 2035 /* 2036 * Read a block from a pool and print it out. The syntax of the 2037 * block descriptor is: 2038 * 2039 * pool:vdev_specifier:offset:size[:flags] 2040 * 2041 * pool - The name of the pool you wish to read from 2042 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2043 * offset - offset, in hex, in bytes 2044 * size - Amount of data to read, in hex, in bytes 2045 * flags - A string of characters specifying options 2046 * b: Decode a blkptr at given offset within block 2047 * *c: Calculate and display checksums 2048 * *d: Decompress data before dumping 2049 * e: Byteswap data before dumping 2050 * *g: Display data as a gang block header 2051 * *i: Display as an indirect block 2052 * p: Do I/O to physical offset 2053 * r: Dump raw data to stdout 2054 * 2055 * * = not yet implemented 2056 */ 2057 static void 2058 zdb_read_block(char *thing, spa_t **spap) 2059 { 2060 spa_t *spa = *spap; 2061 int flags = 0; 2062 uint64_t offset = 0, size = 0, blkptr_offset = 0; 2063 zio_t *zio; 2064 vdev_t *vd; 2065 void *buf; 2066 char *s, *p, *dup, *pool, *vdev, *flagstr; 2067 int i, error, zio_flags; 2068 2069 dup = strdup(thing); 2070 s = strtok(dup, ":"); 2071 pool = s ? s : ""; 2072 s = strtok(NULL, ":"); 2073 vdev = s ? s : ""; 2074 s = strtok(NULL, ":"); 2075 offset = strtoull(s ? s : "", NULL, 16); 2076 s = strtok(NULL, ":"); 2077 size = strtoull(s ? s : "", NULL, 16); 2078 s = strtok(NULL, ":"); 2079 flagstr = s ? s : ""; 2080 2081 s = NULL; 2082 if (size == 0) 2083 s = "size must not be zero"; 2084 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2085 s = "size must be a multiple of sector size"; 2086 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2087 s = "offset must be a multiple of sector size"; 2088 if (s) { 2089 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2090 free(dup); 2091 return; 2092 } 2093 2094 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2095 for (i = 0; flagstr[i]; i++) { 2096 int bit = flagbits[(uchar_t)flagstr[i]]; 2097 2098 if (bit == 0) { 2099 (void) printf("***Invalid flag: %c\n", 2100 flagstr[i]); 2101 continue; 2102 } 2103 flags |= bit; 2104 2105 /* If it's not something with an argument, keep going */ 2106 if ((bit & (ZDB_FLAG_CHECKSUM | ZDB_FLAG_DECOMPRESS | 2107 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2108 continue; 2109 2110 p = &flagstr[i + 1]; 2111 if (bit == ZDB_FLAG_PRINT_BLKPTR) 2112 blkptr_offset = strtoull(p, &p, 16); 2113 if (*p != ':' && *p != '\0') { 2114 (void) printf("***Invalid flag arg: '%s'\n", s); 2115 free(dup); 2116 return; 2117 } 2118 } 2119 } 2120 2121 if (spa == NULL || strcmp(spa_name(spa), pool) != 0) { 2122 if (spa) 2123 spa_close(spa, (void *)zdb_read_block); 2124 error = spa_open(pool, spap, (void *)zdb_read_block); 2125 if (error) 2126 fatal("Failed to open pool '%s': %s", 2127 pool, strerror(error)); 2128 spa = *spap; 2129 } 2130 2131 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 2132 if (vd == NULL) { 2133 (void) printf("***Invalid vdev: %s\n", vdev); 2134 free(dup); 2135 return; 2136 } else { 2137 if (vd->vdev_path) 2138 (void) printf("Found vdev: %s\n", vd->vdev_path); 2139 else 2140 (void) printf("Found vdev type: %s\n", 2141 vd->vdev_ops->vdev_op_type); 2142 } 2143 2144 buf = umem_alloc(size, UMEM_NOFAIL); 2145 2146 zio_flags = ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 2147 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY; 2148 2149 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 2150 zio = zio_root(spa, NULL, NULL, 0); 2151 /* XXX todo - cons up a BP so RAID-Z will be happy */ 2152 zio_nowait(zio_vdev_child_io(zio, NULL, vd, offset, buf, size, 2153 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, zio_flags, NULL, NULL)); 2154 error = zio_wait(zio); 2155 spa_config_exit(spa, SCL_STATE, FTAG); 2156 2157 if (error) { 2158 (void) printf("Read of %s failed, error: %d\n", thing, error); 2159 goto out; 2160 } 2161 2162 if (flags & ZDB_FLAG_PRINT_BLKPTR) 2163 zdb_print_blkptr((blkptr_t *)(void *) 2164 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 2165 else if (flags & ZDB_FLAG_RAW) 2166 zdb_dump_block_raw(buf, size, flags); 2167 else if (flags & ZDB_FLAG_INDIRECT) 2168 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 2169 flags); 2170 else if (flags & ZDB_FLAG_GBH) 2171 zdb_dump_gbh(buf, flags); 2172 else 2173 zdb_dump_block(thing, buf, size, flags); 2174 2175 out: 2176 umem_free(buf, size); 2177 free(dup); 2178 } 2179 2180 static boolean_t 2181 nvlist_string_match(nvlist_t *config, char *name, char *tgt) 2182 { 2183 char *s; 2184 2185 if (nvlist_lookup_string(config, name, &s) != 0) 2186 return (B_FALSE); 2187 2188 return (strcmp(s, tgt) == 0); 2189 } 2190 2191 static boolean_t 2192 nvlist_uint64_match(nvlist_t *config, char *name, uint64_t tgt) 2193 { 2194 uint64_t val; 2195 2196 if (nvlist_lookup_uint64(config, name, &val) != 0) 2197 return (B_FALSE); 2198 2199 return (val == tgt); 2200 } 2201 2202 static boolean_t 2203 vdev_child_guid_match(nvlist_t *vdev, uint64_t guid) 2204 { 2205 nvlist_t **child; 2206 uint_t c, children; 2207 2208 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2209 &child, &children) == 0); 2210 for (c = 0; c < children; ++c) 2211 if (nvlist_uint64_match(child[c], ZPOOL_CONFIG_GUID, guid)) 2212 return (B_TRUE); 2213 return (B_FALSE); 2214 } 2215 2216 static boolean_t 2217 vdev_child_string_match(nvlist_t *vdev, char *tgt) 2218 { 2219 nvlist_t **child; 2220 uint_t c, children; 2221 2222 verify(nvlist_lookup_nvlist_array(vdev, ZPOOL_CONFIG_CHILDREN, 2223 &child, &children) == 0); 2224 for (c = 0; c < children; ++c) { 2225 if (nvlist_string_match(child[c], ZPOOL_CONFIG_PATH, tgt) || 2226 nvlist_string_match(child[c], ZPOOL_CONFIG_DEVID, tgt)) 2227 return (B_TRUE); 2228 } 2229 return (B_FALSE); 2230 } 2231 2232 static boolean_t 2233 vdev_guid_match(nvlist_t *config, uint64_t guid) 2234 { 2235 nvlist_t *nvroot; 2236 2237 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2238 &nvroot) == 0); 2239 2240 return (nvlist_uint64_match(nvroot, ZPOOL_CONFIG_GUID, guid) || 2241 vdev_child_guid_match(nvroot, guid)); 2242 } 2243 2244 static boolean_t 2245 vdev_string_match(nvlist_t *config, char *tgt) 2246 { 2247 nvlist_t *nvroot; 2248 2249 verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 2250 &nvroot) == 0); 2251 2252 return (vdev_child_string_match(nvroot, tgt)); 2253 } 2254 2255 static boolean_t 2256 pool_match(nvlist_t *config, char *tgt) 2257 { 2258 uint64_t guid = strtoull(tgt, NULL, 0); 2259 2260 if (guid != 0) { 2261 return ( 2262 nvlist_uint64_match(config, ZPOOL_CONFIG_POOL_GUID, guid) || 2263 vdev_guid_match(config, guid)); 2264 } else { 2265 return ( 2266 nvlist_string_match(config, ZPOOL_CONFIG_POOL_NAME, tgt) || 2267 vdev_string_match(config, tgt)); 2268 } 2269 } 2270 2271 static int 2272 find_exported_zpool(char *pool_id, nvlist_t **configp, char *vdev_dir) 2273 { 2274 nvlist_t *pools; 2275 int error = ENOENT; 2276 nvlist_t *match = NULL; 2277 2278 if (vdev_dir != NULL) 2279 pools = zpool_find_import_activeok(g_zfs, 1, &vdev_dir); 2280 else 2281 pools = zpool_find_import_activeok(g_zfs, 0, NULL); 2282 2283 if (pools != NULL) { 2284 nvpair_t *elem = NULL; 2285 2286 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 2287 verify(nvpair_value_nvlist(elem, configp) == 0); 2288 if (pool_match(*configp, pool_id)) { 2289 if (match != NULL) { 2290 (void) fatal( 2291 "More than one matching pool - " 2292 "specify guid/devid/device path."); 2293 } else { 2294 match = *configp; 2295 error = 0; 2296 } 2297 } 2298 } 2299 } 2300 2301 *configp = error ? NULL : match; 2302 2303 return (error); 2304 } 2305 2306 int 2307 main(int argc, char **argv) 2308 { 2309 int i, c; 2310 struct rlimit rl = { 1024, 1024 }; 2311 spa_t *spa; 2312 objset_t *os = NULL; 2313 char *endstr; 2314 int dump_all = 1; 2315 int verbose = 0; 2316 int error; 2317 int exported = 0; 2318 char *vdev_dir = NULL; 2319 2320 (void) setrlimit(RLIMIT_NOFILE, &rl); 2321 (void) enable_extended_FILE_stdio(-1, -1); 2322 2323 dprintf_setup(&argc, argv); 2324 2325 while ((c = getopt(argc, argv, "udhibcmsvCLS:U:lRep:t:")) != -1) { 2326 switch (c) { 2327 case 'u': 2328 case 'd': 2329 case 'i': 2330 case 'h': 2331 case 'b': 2332 case 'c': 2333 case 'm': 2334 case 's': 2335 case 'C': 2336 case 'l': 2337 case 'R': 2338 dump_opt[c]++; 2339 dump_all = 0; 2340 break; 2341 case 'L': 2342 dump_opt[c]++; 2343 break; 2344 case 'v': 2345 verbose++; 2346 break; 2347 case 'U': 2348 spa_config_path = optarg; 2349 break; 2350 case 'e': 2351 exported = 1; 2352 break; 2353 case 'p': 2354 vdev_dir = optarg; 2355 break; 2356 case 'S': 2357 dump_opt[c]++; 2358 dump_all = 0; 2359 zdb_sig_user_data = (strncmp(optarg, "user:", 5) == 0); 2360 if (!zdb_sig_user_data && strncmp(optarg, "all:", 4)) 2361 usage(); 2362 endstr = strchr(optarg, ':') + 1; 2363 if (strcmp(endstr, "fletcher2") == 0) 2364 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2365 else if (strcmp(endstr, "fletcher4") == 0) 2366 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_4; 2367 else if (strcmp(endstr, "sha256") == 0) 2368 zdb_sig_cksumalg = ZIO_CHECKSUM_SHA256; 2369 else if (strcmp(endstr, "all") == 0) 2370 zdb_sig_cksumalg = ZIO_CHECKSUM_FLETCHER_2; 2371 else 2372 usage(); 2373 break; 2374 case 't': 2375 ub_max_txg = strtoull(optarg, NULL, 0); 2376 if (ub_max_txg < TXG_INITIAL) { 2377 (void) fprintf(stderr, "incorrect txg " 2378 "specified: %s\n", optarg); 2379 usage(); 2380 } 2381 break; 2382 default: 2383 usage(); 2384 break; 2385 } 2386 } 2387 2388 if (vdev_dir != NULL && exported == 0) { 2389 (void) fprintf(stderr, "-p option requires use of -e\n"); 2390 usage(); 2391 } 2392 2393 kernel_init(FREAD); 2394 g_zfs = libzfs_init(); 2395 ASSERT(g_zfs != NULL); 2396 2397 for (c = 0; c < 256; c++) { 2398 if (dump_all && c != 'l' && c != 'R') 2399 dump_opt[c] = 1; 2400 if (dump_opt[c]) 2401 dump_opt[c] += verbose; 2402 } 2403 2404 argc -= optind; 2405 argv += optind; 2406 2407 if (argc < 1) { 2408 if (dump_opt['C']) { 2409 dump_cachefile(spa_config_path); 2410 return (0); 2411 } 2412 usage(); 2413 } 2414 2415 if (dump_opt['l']) { 2416 dump_label(argv[0]); 2417 return (0); 2418 } 2419 2420 if (dump_opt['R']) { 2421 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 2422 flagbits['c'] = ZDB_FLAG_CHECKSUM; 2423 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 2424 flagbits['e'] = ZDB_FLAG_BSWAP; 2425 flagbits['g'] = ZDB_FLAG_GBH; 2426 flagbits['i'] = ZDB_FLAG_INDIRECT; 2427 flagbits['p'] = ZDB_FLAG_PHYS; 2428 flagbits['r'] = ZDB_FLAG_RAW; 2429 2430 spa = NULL; 2431 while (argv[0]) { 2432 zdb_read_block(argv[0], &spa); 2433 argv++; 2434 argc--; 2435 } 2436 if (spa) 2437 spa_close(spa, (void *)zdb_read_block); 2438 return (0); 2439 } 2440 2441 if (dump_opt['C']) 2442 dump_config(argv[0]); 2443 2444 error = 0; 2445 if (exported) { 2446 /* 2447 * Check to see if the name refers to an exported zpool 2448 */ 2449 char *slash; 2450 nvlist_t *exported_conf = NULL; 2451 2452 if ((slash = strchr(argv[0], '/')) != NULL) 2453 *slash = '\0'; 2454 2455 error = find_exported_zpool(argv[0], &exported_conf, vdev_dir); 2456 if (error == 0) { 2457 nvlist_t *nvl = NULL; 2458 2459 if (vdev_dir != NULL) { 2460 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 2461 error = ENOMEM; 2462 else if (nvlist_add_string(nvl, 2463 zpool_prop_to_name(ZPOOL_PROP_ALTROOT), 2464 vdev_dir) != 0) 2465 error = ENOMEM; 2466 } 2467 2468 if (error == 0) 2469 error = spa_import_verbatim(argv[0], 2470 exported_conf, nvl); 2471 2472 nvlist_free(nvl); 2473 } 2474 2475 if (slash != NULL) 2476 *slash = '/'; 2477 } 2478 2479 if (error == 0) { 2480 if (strchr(argv[0], '/') != NULL) { 2481 error = dmu_objset_own(argv[0], DMU_OST_ANY, 2482 B_TRUE, FTAG, &os); 2483 } else { 2484 error = spa_open(argv[0], &spa, FTAG); 2485 if (error) { 2486 /* 2487 * If we're missing the log device then 2488 * try opening the pool after clearing the 2489 * log state. 2490 */ 2491 mutex_enter(&spa_namespace_lock); 2492 if ((spa = spa_lookup(argv[0])) != NULL && 2493 spa->spa_log_state == SPA_LOG_MISSING) { 2494 spa->spa_log_state = SPA_LOG_CLEAR; 2495 error = 0; 2496 } 2497 mutex_exit(&spa_namespace_lock); 2498 2499 if (!error) 2500 error = spa_open(argv[0], &spa, FTAG); 2501 } 2502 } 2503 } 2504 2505 if (error) 2506 fatal("can't open %s: %s", argv[0], strerror(error)); 2507 2508 argv++; 2509 if (--argc > 0) { 2510 zopt_objects = argc; 2511 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 2512 for (i = 0; i < zopt_objects; i++) { 2513 errno = 0; 2514 zopt_object[i] = strtoull(argv[i], NULL, 0); 2515 if (zopt_object[i] == 0 && errno != 0) 2516 fatal("bad object number %s: %s", 2517 argv[i], strerror(errno)); 2518 } 2519 } 2520 2521 if (os != NULL) { 2522 dump_dir(os); 2523 dmu_objset_disown(os, FTAG); 2524 } else { 2525 dump_zpool(spa); 2526 spa_close(spa, FTAG); 2527 } 2528 2529 fuid_table_destroy(); 2530 2531 libzfs_fini(g_zfs); 2532 kernel_fini(); 2533 2534 return (0); 2535 } 2536