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