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 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2016 by Delphix. All rights reserved. 25 * Copyright (c) 2014 Integros [integros.com] 26 * Copyright 2017 Nexenta Systems, Inc. 27 */ 28 29 #include <stdio.h> 30 #include <unistd.h> 31 #include <stdio_ext.h> 32 #include <stdlib.h> 33 #include <ctype.h> 34 #include <sys/zfs_context.h> 35 #include <sys/spa.h> 36 #include <sys/spa_impl.h> 37 #include <sys/dmu.h> 38 #include <sys/zap.h> 39 #include <sys/fs/zfs.h> 40 #include <sys/zfs_znode.h> 41 #include <sys/zfs_sa.h> 42 #include <sys/sa.h> 43 #include <sys/sa_impl.h> 44 #include <sys/vdev.h> 45 #include <sys/vdev_impl.h> 46 #include <sys/metaslab_impl.h> 47 #include <sys/dmu_objset.h> 48 #include <sys/dsl_dir.h> 49 #include <sys/dsl_dataset.h> 50 #include <sys/dsl_pool.h> 51 #include <sys/dbuf.h> 52 #include <sys/zil.h> 53 #include <sys/zil_impl.h> 54 #include <sys/stat.h> 55 #include <sys/resource.h> 56 #include <sys/dmu_traverse.h> 57 #include <sys/zio_checksum.h> 58 #include <sys/zio_compress.h> 59 #include <sys/zfs_fuid.h> 60 #include <sys/arc.h> 61 #include <sys/ddt.h> 62 #include <sys/zfeature.h> 63 #include <zfs_comutil.h> 64 #undef verify 65 #include <libzfs.h> 66 67 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 68 zio_compress_table[(idx)].ci_name : "UNKNOWN") 69 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 70 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 71 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 72 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 73 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 74 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 75 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 76 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 77 78 #ifndef lint 79 extern int reference_tracking_enable; 80 extern boolean_t zfs_recover; 81 extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 82 extern int zfs_vdev_async_read_max_active; 83 #else 84 int reference_tracking_enable; 85 boolean_t zfs_recover; 86 uint64_t zfs_arc_max, zfs_arc_meta_limit; 87 int zfs_vdev_async_read_max_active; 88 #endif 89 90 const char cmdname[] = "zdb"; 91 uint8_t dump_opt[256]; 92 93 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 94 95 extern void dump_intent_log(zilog_t *); 96 uint64_t *zopt_object = NULL; 97 int zopt_objects = 0; 98 libzfs_handle_t *g_zfs; 99 uint64_t max_inflight = 1000; 100 101 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 102 103 /* 104 * These libumem hooks provide a reasonable set of defaults for the allocator's 105 * debugging facilities. 106 */ 107 const char * 108 _umem_debug_init() 109 { 110 return ("default,verbose"); /* $UMEM_DEBUG setting */ 111 } 112 113 const char * 114 _umem_logging_init(void) 115 { 116 return ("fail,contents"); /* $UMEM_LOGGING setting */ 117 } 118 119 static void 120 usage(void) 121 { 122 (void) fprintf(stderr, 123 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] " 124 "[-I <inflight I/Os>]\n" 125 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" 126 "\t\t[<poolname> [<object> ...]]\n" 127 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> " 128 "[<object> ...]\n" 129 "\t%s -C [-A] [-U <cache>]\n" 130 "\t%s -l [-Aqu] <device>\n" 131 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] " 132 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n" 133 "\t%s -O <dataset> <path>\n" 134 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n" 135 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n" 136 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] " 137 "<poolname>\n\n", 138 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, 139 cmdname); 140 141 (void) fprintf(stderr, " Dataset name must include at least one " 142 "separator character '/' or '@'\n"); 143 (void) fprintf(stderr, " If dataset name is specified, only that " 144 "dataset is dumped\n"); 145 (void) fprintf(stderr, " If object numbers are specified, only " 146 "those objects are dumped\n\n"); 147 (void) fprintf(stderr, " Options to control amount of output:\n"); 148 (void) fprintf(stderr, " -b block statistics\n"); 149 (void) fprintf(stderr, " -c checksum all metadata (twice for " 150 "all data) blocks\n"); 151 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 152 (void) fprintf(stderr, " -d dataset(s)\n"); 153 (void) fprintf(stderr, " -D dedup statistics\n"); 154 (void) fprintf(stderr, " -h pool history\n"); 155 (void) fprintf(stderr, " -i intent logs\n"); 156 (void) fprintf(stderr, " -l read label contents\n"); 157 (void) fprintf(stderr, " -L disable leak tracking (do not " 158 "load spacemaps)\n"); 159 (void) fprintf(stderr, " -m metaslabs\n"); 160 (void) fprintf(stderr, " -M metaslab groups\n"); 161 (void) fprintf(stderr, " -O perform object lookups by path\n"); 162 (void) fprintf(stderr, " -R read and display block from a " 163 "device\n"); 164 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 165 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 166 (void) fprintf(stderr, " -v verbose (applies to all " 167 "others)\n\n"); 168 (void) fprintf(stderr, " Below options are intended for use " 169 "with other options:\n"); 170 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 171 "panic recovery (-AA) or both (-AAA)\n"); 172 (void) fprintf(stderr, " -e pool is exported/destroyed/" 173 "has altroot/not in a cachefile\n"); 174 (void) fprintf(stderr, " -F attempt automatic rewind within " 175 "safe range of transaction groups\n"); 176 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " 177 "exiting\n"); 178 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 179 "specify the maximum number of " 180 "checksumming I/Os [default is 200]\n"); 181 (void) fprintf(stderr, " -o <variable>=<value> set global " 182 "variable to an unsigned 32-bit integer value\n"); 183 (void) fprintf(stderr, " -p <path> -- use one or more with " 184 "-e to specify path to vdev dir\n"); 185 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 186 (void) fprintf(stderr, " -q don't print label contents\n"); 187 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 188 "searching for uberblocks\n"); 189 (void) fprintf(stderr, " -u uberblock\n"); 190 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 191 "cachefile\n"); 192 (void) fprintf(stderr, " -V do verbatim import\n"); 193 (void) fprintf(stderr, " -x <dumpdir> -- " 194 "dump all read blocks into specified directory\n"); 195 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 196 "work with dataset)\n\n"); 197 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 198 "to make only that option verbose\n"); 199 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 200 exit(1); 201 } 202 203 static void 204 dump_debug_buffer() 205 { 206 if (dump_opt['G']) { 207 (void) printf("\n"); 208 zfs_dbgmsg_print("zdb"); 209 } 210 } 211 212 /* 213 * Called for usage errors that are discovered after a call to spa_open(), 214 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 215 */ 216 217 static void 218 fatal(const char *fmt, ...) 219 { 220 va_list ap; 221 222 va_start(ap, fmt); 223 (void) fprintf(stderr, "%s: ", cmdname); 224 (void) vfprintf(stderr, fmt, ap); 225 va_end(ap); 226 (void) fprintf(stderr, "\n"); 227 228 dump_debug_buffer(); 229 230 exit(1); 231 } 232 233 /* ARGSUSED */ 234 static void 235 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 236 { 237 nvlist_t *nv; 238 size_t nvsize = *(uint64_t *)data; 239 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 240 241 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 242 243 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 244 245 umem_free(packed, nvsize); 246 247 dump_nvlist(nv, 8); 248 249 nvlist_free(nv); 250 } 251 252 /* ARGSUSED */ 253 static void 254 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 255 { 256 spa_history_phys_t *shp = data; 257 258 if (shp == NULL) 259 return; 260 261 (void) printf("\t\tpool_create_len = %llu\n", 262 (u_longlong_t)shp->sh_pool_create_len); 263 (void) printf("\t\tphys_max_off = %llu\n", 264 (u_longlong_t)shp->sh_phys_max_off); 265 (void) printf("\t\tbof = %llu\n", 266 (u_longlong_t)shp->sh_bof); 267 (void) printf("\t\teof = %llu\n", 268 (u_longlong_t)shp->sh_eof); 269 (void) printf("\t\trecords_lost = %llu\n", 270 (u_longlong_t)shp->sh_records_lost); 271 } 272 273 static void 274 zdb_nicenum(uint64_t num, char *buf) 275 { 276 if (dump_opt['P']) 277 (void) sprintf(buf, "%llu", (longlong_t)num); 278 else 279 nicenum(num, buf); 280 } 281 282 const char histo_stars[] = "****************************************"; 283 const int histo_width = sizeof (histo_stars) - 1; 284 285 static void 286 dump_histogram(const uint64_t *histo, int size, int offset) 287 { 288 int i; 289 int minidx = size - 1; 290 int maxidx = 0; 291 uint64_t max = 0; 292 293 for (i = 0; i < size; i++) { 294 if (histo[i] > max) 295 max = histo[i]; 296 if (histo[i] > 0 && i > maxidx) 297 maxidx = i; 298 if (histo[i] > 0 && i < minidx) 299 minidx = i; 300 } 301 302 if (max < histo_width) 303 max = histo_width; 304 305 for (i = minidx; i <= maxidx; i++) { 306 (void) printf("\t\t\t%3u: %6llu %s\n", 307 i + offset, (u_longlong_t)histo[i], 308 &histo_stars[(max - histo[i]) * histo_width / max]); 309 } 310 } 311 312 static void 313 dump_zap_stats(objset_t *os, uint64_t object) 314 { 315 int error; 316 zap_stats_t zs; 317 318 error = zap_get_stats(os, object, &zs); 319 if (error) 320 return; 321 322 if (zs.zs_ptrtbl_len == 0) { 323 ASSERT(zs.zs_num_blocks == 1); 324 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 325 (u_longlong_t)zs.zs_blocksize, 326 (u_longlong_t)zs.zs_num_entries); 327 return; 328 } 329 330 (void) printf("\tFat ZAP stats:\n"); 331 332 (void) printf("\t\tPointer table:\n"); 333 (void) printf("\t\t\t%llu elements\n", 334 (u_longlong_t)zs.zs_ptrtbl_len); 335 (void) printf("\t\t\tzt_blk: %llu\n", 336 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 337 (void) printf("\t\t\tzt_numblks: %llu\n", 338 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 339 (void) printf("\t\t\tzt_shift: %llu\n", 340 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 341 (void) printf("\t\t\tzt_blks_copied: %llu\n", 342 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 343 (void) printf("\t\t\tzt_nextblk: %llu\n", 344 (u_longlong_t)zs.zs_ptrtbl_nextblk); 345 346 (void) printf("\t\tZAP entries: %llu\n", 347 (u_longlong_t)zs.zs_num_entries); 348 (void) printf("\t\tLeaf blocks: %llu\n", 349 (u_longlong_t)zs.zs_num_leafs); 350 (void) printf("\t\tTotal blocks: %llu\n", 351 (u_longlong_t)zs.zs_num_blocks); 352 (void) printf("\t\tzap_block_type: 0x%llx\n", 353 (u_longlong_t)zs.zs_block_type); 354 (void) printf("\t\tzap_magic: 0x%llx\n", 355 (u_longlong_t)zs.zs_magic); 356 (void) printf("\t\tzap_salt: 0x%llx\n", 357 (u_longlong_t)zs.zs_salt); 358 359 (void) printf("\t\tLeafs with 2^n pointers:\n"); 360 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 361 362 (void) printf("\t\tBlocks with n*5 entries:\n"); 363 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 364 365 (void) printf("\t\tBlocks n/10 full:\n"); 366 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 367 368 (void) printf("\t\tEntries with n chunks:\n"); 369 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 370 371 (void) printf("\t\tBuckets with n entries:\n"); 372 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 373 } 374 375 /*ARGSUSED*/ 376 static void 377 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 378 { 379 } 380 381 /*ARGSUSED*/ 382 static void 383 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 384 { 385 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 386 } 387 388 /*ARGSUSED*/ 389 void 390 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 391 { 392 } 393 394 /*ARGSUSED*/ 395 static void 396 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 397 { 398 } 399 400 /*ARGSUSED*/ 401 static void 402 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 403 { 404 zap_cursor_t zc; 405 zap_attribute_t attr; 406 void *prop; 407 int i; 408 409 dump_zap_stats(os, object); 410 (void) printf("\n"); 411 412 for (zap_cursor_init(&zc, os, object); 413 zap_cursor_retrieve(&zc, &attr) == 0; 414 zap_cursor_advance(&zc)) { 415 (void) printf("\t\t%s = ", attr.za_name); 416 if (attr.za_num_integers == 0) { 417 (void) printf("\n"); 418 continue; 419 } 420 prop = umem_zalloc(attr.za_num_integers * 421 attr.za_integer_length, UMEM_NOFAIL); 422 (void) zap_lookup(os, object, attr.za_name, 423 attr.za_integer_length, attr.za_num_integers, prop); 424 if (attr.za_integer_length == 1) { 425 (void) printf("%s", (char *)prop); 426 } else { 427 for (i = 0; i < attr.za_num_integers; i++) { 428 switch (attr.za_integer_length) { 429 case 2: 430 (void) printf("%u ", 431 ((uint16_t *)prop)[i]); 432 break; 433 case 4: 434 (void) printf("%u ", 435 ((uint32_t *)prop)[i]); 436 break; 437 case 8: 438 (void) printf("%lld ", 439 (u_longlong_t)((int64_t *)prop)[i]); 440 break; 441 } 442 } 443 } 444 (void) printf("\n"); 445 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 446 } 447 zap_cursor_fini(&zc); 448 } 449 450 static void 451 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 452 { 453 bpobj_phys_t *bpop = data; 454 char bytes[32], comp[32], uncomp[32]; 455 456 if (bpop == NULL) 457 return; 458 459 zdb_nicenum(bpop->bpo_bytes, bytes); 460 zdb_nicenum(bpop->bpo_comp, comp); 461 zdb_nicenum(bpop->bpo_uncomp, uncomp); 462 463 (void) printf("\t\tnum_blkptrs = %llu\n", 464 (u_longlong_t)bpop->bpo_num_blkptrs); 465 (void) printf("\t\tbytes = %s\n", bytes); 466 if (size >= BPOBJ_SIZE_V1) { 467 (void) printf("\t\tcomp = %s\n", comp); 468 (void) printf("\t\tuncomp = %s\n", uncomp); 469 } 470 if (size >= sizeof (*bpop)) { 471 (void) printf("\t\tsubobjs = %llu\n", 472 (u_longlong_t)bpop->bpo_subobjs); 473 (void) printf("\t\tnum_subobjs = %llu\n", 474 (u_longlong_t)bpop->bpo_num_subobjs); 475 } 476 477 if (dump_opt['d'] < 5) 478 return; 479 480 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 481 char blkbuf[BP_SPRINTF_LEN]; 482 blkptr_t bp; 483 484 int err = dmu_read(os, object, 485 i * sizeof (bp), sizeof (bp), &bp, 0); 486 if (err != 0) { 487 (void) printf("got error %u from dmu_read\n", err); 488 break; 489 } 490 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 491 (void) printf("\t%s\n", blkbuf); 492 } 493 } 494 495 /* ARGSUSED */ 496 static void 497 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 498 { 499 dmu_object_info_t doi; 500 501 VERIFY0(dmu_object_info(os, object, &doi)); 502 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 503 504 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 505 if (err != 0) { 506 (void) printf("got error %u from dmu_read\n", err); 507 kmem_free(subobjs, doi.doi_max_offset); 508 return; 509 } 510 511 int64_t last_nonzero = -1; 512 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 513 if (subobjs[i] != 0) 514 last_nonzero = i; 515 } 516 517 for (int64_t i = 0; i <= last_nonzero; i++) { 518 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 519 } 520 kmem_free(subobjs, doi.doi_max_offset); 521 } 522 523 /*ARGSUSED*/ 524 static void 525 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 526 { 527 dump_zap_stats(os, object); 528 /* contents are printed elsewhere, properly decoded */ 529 } 530 531 /*ARGSUSED*/ 532 static void 533 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 534 { 535 zap_cursor_t zc; 536 zap_attribute_t attr; 537 538 dump_zap_stats(os, object); 539 (void) printf("\n"); 540 541 for (zap_cursor_init(&zc, os, object); 542 zap_cursor_retrieve(&zc, &attr) == 0; 543 zap_cursor_advance(&zc)) { 544 (void) printf("\t\t%s = ", attr.za_name); 545 if (attr.za_num_integers == 0) { 546 (void) printf("\n"); 547 continue; 548 } 549 (void) printf(" %llx : [%d:%d:%d]\n", 550 (u_longlong_t)attr.za_first_integer, 551 (int)ATTR_LENGTH(attr.za_first_integer), 552 (int)ATTR_BSWAP(attr.za_first_integer), 553 (int)ATTR_NUM(attr.za_first_integer)); 554 } 555 zap_cursor_fini(&zc); 556 } 557 558 /*ARGSUSED*/ 559 static void 560 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 561 { 562 zap_cursor_t zc; 563 zap_attribute_t attr; 564 uint16_t *layout_attrs; 565 int i; 566 567 dump_zap_stats(os, object); 568 (void) printf("\n"); 569 570 for (zap_cursor_init(&zc, os, object); 571 zap_cursor_retrieve(&zc, &attr) == 0; 572 zap_cursor_advance(&zc)) { 573 (void) printf("\t\t%s = [", attr.za_name); 574 if (attr.za_num_integers == 0) { 575 (void) printf("\n"); 576 continue; 577 } 578 579 VERIFY(attr.za_integer_length == 2); 580 layout_attrs = umem_zalloc(attr.za_num_integers * 581 attr.za_integer_length, UMEM_NOFAIL); 582 583 VERIFY(zap_lookup(os, object, attr.za_name, 584 attr.za_integer_length, 585 attr.za_num_integers, layout_attrs) == 0); 586 587 for (i = 0; i != attr.za_num_integers; i++) 588 (void) printf(" %d ", (int)layout_attrs[i]); 589 (void) printf("]\n"); 590 umem_free(layout_attrs, 591 attr.za_num_integers * attr.za_integer_length); 592 } 593 zap_cursor_fini(&zc); 594 } 595 596 /*ARGSUSED*/ 597 static void 598 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 599 { 600 zap_cursor_t zc; 601 zap_attribute_t attr; 602 const char *typenames[] = { 603 /* 0 */ "not specified", 604 /* 1 */ "FIFO", 605 /* 2 */ "Character Device", 606 /* 3 */ "3 (invalid)", 607 /* 4 */ "Directory", 608 /* 5 */ "5 (invalid)", 609 /* 6 */ "Block Device", 610 /* 7 */ "7 (invalid)", 611 /* 8 */ "Regular File", 612 /* 9 */ "9 (invalid)", 613 /* 10 */ "Symbolic Link", 614 /* 11 */ "11 (invalid)", 615 /* 12 */ "Socket", 616 /* 13 */ "Door", 617 /* 14 */ "Event Port", 618 /* 15 */ "15 (invalid)", 619 }; 620 621 dump_zap_stats(os, object); 622 (void) printf("\n"); 623 624 for (zap_cursor_init(&zc, os, object); 625 zap_cursor_retrieve(&zc, &attr) == 0; 626 zap_cursor_advance(&zc)) { 627 (void) printf("\t\t%s = %lld (type: %s)\n", 628 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 629 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 630 } 631 zap_cursor_fini(&zc); 632 } 633 634 int 635 get_dtl_refcount(vdev_t *vd) 636 { 637 int refcount = 0; 638 639 if (vd->vdev_ops->vdev_op_leaf) { 640 space_map_t *sm = vd->vdev_dtl_sm; 641 642 if (sm != NULL && 643 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 644 return (1); 645 return (0); 646 } 647 648 for (int c = 0; c < vd->vdev_children; c++) 649 refcount += get_dtl_refcount(vd->vdev_child[c]); 650 return (refcount); 651 } 652 653 int 654 get_metaslab_refcount(vdev_t *vd) 655 { 656 int refcount = 0; 657 658 if (vd->vdev_top == vd && !vd->vdev_removing) { 659 for (int m = 0; m < vd->vdev_ms_count; m++) { 660 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 661 662 if (sm != NULL && 663 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 664 refcount++; 665 } 666 } 667 for (int c = 0; c < vd->vdev_children; c++) 668 refcount += get_metaslab_refcount(vd->vdev_child[c]); 669 670 return (refcount); 671 } 672 673 static int 674 verify_spacemap_refcounts(spa_t *spa) 675 { 676 uint64_t expected_refcount = 0; 677 uint64_t actual_refcount; 678 679 (void) feature_get_refcount(spa, 680 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 681 &expected_refcount); 682 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 683 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 684 685 if (expected_refcount != actual_refcount) { 686 (void) printf("space map refcount mismatch: expected %lld != " 687 "actual %lld\n", 688 (longlong_t)expected_refcount, 689 (longlong_t)actual_refcount); 690 return (2); 691 } 692 return (0); 693 } 694 695 static void 696 dump_spacemap(objset_t *os, space_map_t *sm) 697 { 698 uint64_t alloc, offset, entry; 699 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 700 "INVALID", "INVALID", "INVALID", "INVALID" }; 701 702 if (sm == NULL) 703 return; 704 705 /* 706 * Print out the freelist entries in both encoded and decoded form. 707 */ 708 alloc = 0; 709 for (offset = 0; offset < space_map_length(sm); 710 offset += sizeof (entry)) { 711 uint8_t mapshift = sm->sm_shift; 712 713 VERIFY0(dmu_read(os, space_map_object(sm), offset, 714 sizeof (entry), &entry, DMU_READ_PREFETCH)); 715 if (SM_DEBUG_DECODE(entry)) { 716 717 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 718 (u_longlong_t)(offset / sizeof (entry)), 719 ddata[SM_DEBUG_ACTION_DECODE(entry)], 720 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 721 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 722 } else { 723 (void) printf("\t [%6llu] %c range:" 724 " %010llx-%010llx size: %06llx\n", 725 (u_longlong_t)(offset / sizeof (entry)), 726 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 727 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 728 mapshift) + sm->sm_start), 729 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 730 mapshift) + sm->sm_start + 731 (SM_RUN_DECODE(entry) << mapshift)), 732 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 733 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 734 alloc += SM_RUN_DECODE(entry) << mapshift; 735 else 736 alloc -= SM_RUN_DECODE(entry) << mapshift; 737 } 738 } 739 if (alloc != space_map_allocated(sm)) { 740 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 741 "with space map summary (%llu)\n", 742 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 743 } 744 } 745 746 static void 747 dump_metaslab_stats(metaslab_t *msp) 748 { 749 char maxbuf[32]; 750 range_tree_t *rt = msp->ms_tree; 751 avl_tree_t *t = &msp->ms_size_tree; 752 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 753 754 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 755 756 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 757 "segments", avl_numnodes(t), "maxsize", maxbuf, 758 "freepct", free_pct); 759 (void) printf("\tIn-memory histogram:\n"); 760 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 761 } 762 763 static void 764 dump_metaslab(metaslab_t *msp) 765 { 766 vdev_t *vd = msp->ms_group->mg_vd; 767 spa_t *spa = vd->vdev_spa; 768 space_map_t *sm = msp->ms_sm; 769 char freebuf[32]; 770 771 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 772 773 (void) printf( 774 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 775 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 776 (u_longlong_t)space_map_object(sm), freebuf); 777 778 if (dump_opt['m'] > 2 && !dump_opt['L']) { 779 mutex_enter(&msp->ms_lock); 780 metaslab_load_wait(msp); 781 if (!msp->ms_loaded) { 782 VERIFY0(metaslab_load(msp)); 783 range_tree_stat_verify(msp->ms_tree); 784 } 785 dump_metaslab_stats(msp); 786 metaslab_unload(msp); 787 mutex_exit(&msp->ms_lock); 788 } 789 790 if (dump_opt['m'] > 1 && sm != NULL && 791 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 792 /* 793 * The space map histogram represents free space in chunks 794 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 795 */ 796 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 797 (u_longlong_t)msp->ms_fragmentation); 798 dump_histogram(sm->sm_phys->smp_histogram, 799 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 800 } 801 802 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 803 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 804 805 mutex_enter(&msp->ms_lock); 806 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 807 mutex_exit(&msp->ms_lock); 808 } 809 } 810 811 static void 812 print_vdev_metaslab_header(vdev_t *vd) 813 { 814 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 815 (u_longlong_t)vd->vdev_id, 816 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 817 "offset", "spacemap", "free"); 818 (void) printf("\t%15s %19s %15s %10s\n", 819 "---------------", "-------------------", 820 "---------------", "-------------"); 821 } 822 823 static void 824 dump_metaslab_groups(spa_t *spa) 825 { 826 vdev_t *rvd = spa->spa_root_vdev; 827 metaslab_class_t *mc = spa_normal_class(spa); 828 uint64_t fragmentation; 829 830 metaslab_class_histogram_verify(mc); 831 832 for (int c = 0; c < rvd->vdev_children; c++) { 833 vdev_t *tvd = rvd->vdev_child[c]; 834 metaslab_group_t *mg = tvd->vdev_mg; 835 836 if (mg->mg_class != mc) 837 continue; 838 839 metaslab_group_histogram_verify(mg); 840 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 841 842 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 843 "fragmentation", 844 (u_longlong_t)tvd->vdev_id, 845 (u_longlong_t)tvd->vdev_ms_count); 846 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 847 (void) printf("%3s\n", "-"); 848 } else { 849 (void) printf("%3llu%%\n", 850 (u_longlong_t)mg->mg_fragmentation); 851 } 852 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 853 } 854 855 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 856 fragmentation = metaslab_class_fragmentation(mc); 857 if (fragmentation == ZFS_FRAG_INVALID) 858 (void) printf("\t%3s\n", "-"); 859 else 860 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 861 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 862 } 863 864 static void 865 dump_metaslabs(spa_t *spa) 866 { 867 vdev_t *vd, *rvd = spa->spa_root_vdev; 868 uint64_t m, c = 0, children = rvd->vdev_children; 869 870 (void) printf("\nMetaslabs:\n"); 871 872 if (!dump_opt['d'] && zopt_objects > 0) { 873 c = zopt_object[0]; 874 875 if (c >= children) 876 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 877 878 if (zopt_objects > 1) { 879 vd = rvd->vdev_child[c]; 880 print_vdev_metaslab_header(vd); 881 882 for (m = 1; m < zopt_objects; m++) { 883 if (zopt_object[m] < vd->vdev_ms_count) 884 dump_metaslab( 885 vd->vdev_ms[zopt_object[m]]); 886 else 887 (void) fprintf(stderr, "bad metaslab " 888 "number %llu\n", 889 (u_longlong_t)zopt_object[m]); 890 } 891 (void) printf("\n"); 892 return; 893 } 894 children = c + 1; 895 } 896 for (; c < children; c++) { 897 vd = rvd->vdev_child[c]; 898 print_vdev_metaslab_header(vd); 899 900 for (m = 0; m < vd->vdev_ms_count; m++) 901 dump_metaslab(vd->vdev_ms[m]); 902 (void) printf("\n"); 903 } 904 } 905 906 static void 907 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 908 { 909 const ddt_phys_t *ddp = dde->dde_phys; 910 const ddt_key_t *ddk = &dde->dde_key; 911 char *types[4] = { "ditto", "single", "double", "triple" }; 912 char blkbuf[BP_SPRINTF_LEN]; 913 blkptr_t blk; 914 915 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 916 if (ddp->ddp_phys_birth == 0) 917 continue; 918 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 919 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 920 (void) printf("index %llx refcnt %llu %s %s\n", 921 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 922 types[p], blkbuf); 923 } 924 } 925 926 static void 927 dump_dedup_ratio(const ddt_stat_t *dds) 928 { 929 double rL, rP, rD, D, dedup, compress, copies; 930 931 if (dds->dds_blocks == 0) 932 return; 933 934 rL = (double)dds->dds_ref_lsize; 935 rP = (double)dds->dds_ref_psize; 936 rD = (double)dds->dds_ref_dsize; 937 D = (double)dds->dds_dsize; 938 939 dedup = rD / D; 940 compress = rL / rP; 941 copies = rD / rP; 942 943 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 944 "dedup * compress / copies = %.2f\n\n", 945 dedup, compress, copies, dedup * compress / copies); 946 } 947 948 static void 949 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 950 { 951 char name[DDT_NAMELEN]; 952 ddt_entry_t dde; 953 uint64_t walk = 0; 954 dmu_object_info_t doi; 955 uint64_t count, dspace, mspace; 956 int error; 957 958 error = ddt_object_info(ddt, type, class, &doi); 959 960 if (error == ENOENT) 961 return; 962 ASSERT(error == 0); 963 964 if ((count = ddt_object_count(ddt, type, class)) == 0) 965 return; 966 967 dspace = doi.doi_physical_blocks_512 << 9; 968 mspace = doi.doi_fill_count * doi.doi_data_block_size; 969 970 ddt_object_name(ddt, type, class, name); 971 972 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 973 name, 974 (u_longlong_t)count, 975 (u_longlong_t)(dspace / count), 976 (u_longlong_t)(mspace / count)); 977 978 if (dump_opt['D'] < 3) 979 return; 980 981 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 982 983 if (dump_opt['D'] < 4) 984 return; 985 986 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 987 return; 988 989 (void) printf("%s contents:\n\n", name); 990 991 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 992 dump_dde(ddt, &dde, walk); 993 994 ASSERT(error == ENOENT); 995 996 (void) printf("\n"); 997 } 998 999 static void 1000 dump_all_ddts(spa_t *spa) 1001 { 1002 ddt_histogram_t ddh_total = { 0 }; 1003 ddt_stat_t dds_total = { 0 }; 1004 1005 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 1006 ddt_t *ddt = spa->spa_ddt[c]; 1007 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 1008 for (enum ddt_class class = 0; class < DDT_CLASSES; 1009 class++) { 1010 dump_ddt(ddt, type, class); 1011 } 1012 } 1013 } 1014 1015 ddt_get_dedup_stats(spa, &dds_total); 1016 1017 if (dds_total.dds_blocks == 0) { 1018 (void) printf("All DDTs are empty\n"); 1019 return; 1020 } 1021 1022 (void) printf("\n"); 1023 1024 if (dump_opt['D'] > 1) { 1025 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 1026 ddt_get_dedup_histogram(spa, &ddh_total); 1027 zpool_dump_ddt(&dds_total, &ddh_total); 1028 } 1029 1030 dump_dedup_ratio(&dds_total); 1031 } 1032 1033 static void 1034 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 1035 { 1036 char *prefix = arg; 1037 1038 (void) printf("%s [%llu,%llu) length %llu\n", 1039 prefix, 1040 (u_longlong_t)start, 1041 (u_longlong_t)(start + size), 1042 (u_longlong_t)(size)); 1043 } 1044 1045 static void 1046 dump_dtl(vdev_t *vd, int indent) 1047 { 1048 spa_t *spa = vd->vdev_spa; 1049 boolean_t required; 1050 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 1051 char prefix[256]; 1052 1053 spa_vdev_state_enter(spa, SCL_NONE); 1054 required = vdev_dtl_required(vd); 1055 (void) spa_vdev_state_exit(spa, NULL, 0); 1056 1057 if (indent == 0) 1058 (void) printf("\nDirty time logs:\n\n"); 1059 1060 (void) printf("\t%*s%s [%s]\n", indent, "", 1061 vd->vdev_path ? vd->vdev_path : 1062 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 1063 required ? "DTL-required" : "DTL-expendable"); 1064 1065 for (int t = 0; t < DTL_TYPES; t++) { 1066 range_tree_t *rt = vd->vdev_dtl[t]; 1067 if (range_tree_space(rt) == 0) 1068 continue; 1069 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 1070 indent + 2, "", name[t]); 1071 mutex_enter(rt->rt_lock); 1072 range_tree_walk(rt, dump_dtl_seg, prefix); 1073 mutex_exit(rt->rt_lock); 1074 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 1075 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 1076 } 1077 1078 for (int c = 0; c < vd->vdev_children; c++) 1079 dump_dtl(vd->vdev_child[c], indent + 4); 1080 } 1081 1082 static void 1083 dump_history(spa_t *spa) 1084 { 1085 nvlist_t **events = NULL; 1086 uint64_t resid, len, off = 0; 1087 uint_t num = 0; 1088 int error; 1089 time_t tsec; 1090 struct tm t; 1091 char tbuf[30]; 1092 char internalstr[MAXPATHLEN]; 1093 1094 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 1095 do { 1096 len = SPA_MAXBLOCKSIZE; 1097 1098 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1099 (void) fprintf(stderr, "Unable to read history: " 1100 "error %d\n", error); 1101 umem_free(buf, SPA_MAXBLOCKSIZE); 1102 return; 1103 } 1104 1105 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1106 break; 1107 1108 off -= resid; 1109 } while (len != 0); 1110 umem_free(buf, SPA_MAXBLOCKSIZE); 1111 1112 (void) printf("\nHistory:\n"); 1113 for (int i = 0; i < num; i++) { 1114 uint64_t time, txg, ievent; 1115 char *cmd, *intstr; 1116 boolean_t printed = B_FALSE; 1117 1118 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1119 &time) != 0) 1120 goto next; 1121 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1122 &cmd) != 0) { 1123 if (nvlist_lookup_uint64(events[i], 1124 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1125 goto next; 1126 verify(nvlist_lookup_uint64(events[i], 1127 ZPOOL_HIST_TXG, &txg) == 0); 1128 verify(nvlist_lookup_string(events[i], 1129 ZPOOL_HIST_INT_STR, &intstr) == 0); 1130 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1131 goto next; 1132 1133 (void) snprintf(internalstr, 1134 sizeof (internalstr), 1135 "[internal %s txg:%lld] %s", 1136 zfs_history_event_names[ievent], txg, 1137 intstr); 1138 cmd = internalstr; 1139 } 1140 tsec = time; 1141 (void) localtime_r(&tsec, &t); 1142 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1143 (void) printf("%s %s\n", tbuf, cmd); 1144 printed = B_TRUE; 1145 1146 next: 1147 if (dump_opt['h'] > 1) { 1148 if (!printed) 1149 (void) printf("unrecognized record:\n"); 1150 dump_nvlist(events[i], 2); 1151 } 1152 } 1153 } 1154 1155 /*ARGSUSED*/ 1156 static void 1157 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1158 { 1159 } 1160 1161 static uint64_t 1162 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1163 const zbookmark_phys_t *zb) 1164 { 1165 if (dnp == NULL) { 1166 ASSERT(zb->zb_level < 0); 1167 if (zb->zb_object == 0) 1168 return (zb->zb_blkid); 1169 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1170 } 1171 1172 ASSERT(zb->zb_level >= 0); 1173 1174 return ((zb->zb_blkid << 1175 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1176 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1177 } 1178 1179 static void 1180 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1181 { 1182 const dva_t *dva = bp->blk_dva; 1183 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1184 1185 if (dump_opt['b'] >= 6) { 1186 snprintf_blkptr(blkbuf, buflen, bp); 1187 return; 1188 } 1189 1190 if (BP_IS_EMBEDDED(bp)) { 1191 (void) sprintf(blkbuf, 1192 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1193 (int)BPE_GET_ETYPE(bp), 1194 (u_longlong_t)BPE_GET_LSIZE(bp), 1195 (u_longlong_t)BPE_GET_PSIZE(bp), 1196 (u_longlong_t)bp->blk_birth); 1197 return; 1198 } 1199 1200 blkbuf[0] = '\0'; 1201 for (int i = 0; i < ndvas; i++) 1202 (void) snprintf(blkbuf + strlen(blkbuf), 1203 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1204 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1205 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1206 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1207 1208 if (BP_IS_HOLE(bp)) { 1209 (void) snprintf(blkbuf + strlen(blkbuf), 1210 buflen - strlen(blkbuf), 1211 "%llxL B=%llu", 1212 (u_longlong_t)BP_GET_LSIZE(bp), 1213 (u_longlong_t)bp->blk_birth); 1214 } else { 1215 (void) snprintf(blkbuf + strlen(blkbuf), 1216 buflen - strlen(blkbuf), 1217 "%llxL/%llxP F=%llu B=%llu/%llu", 1218 (u_longlong_t)BP_GET_LSIZE(bp), 1219 (u_longlong_t)BP_GET_PSIZE(bp), 1220 (u_longlong_t)BP_GET_FILL(bp), 1221 (u_longlong_t)bp->blk_birth, 1222 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1223 } 1224 } 1225 1226 static void 1227 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1228 const dnode_phys_t *dnp) 1229 { 1230 char blkbuf[BP_SPRINTF_LEN]; 1231 int l; 1232 1233 if (!BP_IS_EMBEDDED(bp)) { 1234 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1235 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1236 } 1237 1238 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1239 1240 ASSERT(zb->zb_level >= 0); 1241 1242 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1243 if (l == zb->zb_level) { 1244 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1245 } else { 1246 (void) printf(" "); 1247 } 1248 } 1249 1250 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1251 (void) printf("%s\n", blkbuf); 1252 } 1253 1254 static int 1255 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1256 blkptr_t *bp, const zbookmark_phys_t *zb) 1257 { 1258 int err = 0; 1259 1260 if (bp->blk_birth == 0) 1261 return (0); 1262 1263 print_indirect(bp, zb, dnp); 1264 1265 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1266 arc_flags_t flags = ARC_FLAG_WAIT; 1267 int i; 1268 blkptr_t *cbp; 1269 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1270 arc_buf_t *buf; 1271 uint64_t fill = 0; 1272 1273 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1274 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1275 if (err) 1276 return (err); 1277 ASSERT(buf->b_data); 1278 1279 /* recursively visit blocks below this */ 1280 cbp = buf->b_data; 1281 for (i = 0; i < epb; i++, cbp++) { 1282 zbookmark_phys_t czb; 1283 1284 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1285 zb->zb_level - 1, 1286 zb->zb_blkid * epb + i); 1287 err = visit_indirect(spa, dnp, cbp, &czb); 1288 if (err) 1289 break; 1290 fill += BP_GET_FILL(cbp); 1291 } 1292 if (!err) 1293 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1294 arc_buf_destroy(buf, &buf); 1295 } 1296 1297 return (err); 1298 } 1299 1300 /*ARGSUSED*/ 1301 static void 1302 dump_indirect(dnode_t *dn) 1303 { 1304 dnode_phys_t *dnp = dn->dn_phys; 1305 int j; 1306 zbookmark_phys_t czb; 1307 1308 (void) printf("Indirect blocks:\n"); 1309 1310 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1311 dn->dn_object, dnp->dn_nlevels - 1, 0); 1312 for (j = 0; j < dnp->dn_nblkptr; j++) { 1313 czb.zb_blkid = j; 1314 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1315 &dnp->dn_blkptr[j], &czb); 1316 } 1317 1318 (void) printf("\n"); 1319 } 1320 1321 /*ARGSUSED*/ 1322 static void 1323 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1324 { 1325 dsl_dir_phys_t *dd = data; 1326 time_t crtime; 1327 char nice[32]; 1328 1329 if (dd == NULL) 1330 return; 1331 1332 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1333 1334 crtime = dd->dd_creation_time; 1335 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1336 (void) printf("\t\thead_dataset_obj = %llu\n", 1337 (u_longlong_t)dd->dd_head_dataset_obj); 1338 (void) printf("\t\tparent_dir_obj = %llu\n", 1339 (u_longlong_t)dd->dd_parent_obj); 1340 (void) printf("\t\torigin_obj = %llu\n", 1341 (u_longlong_t)dd->dd_origin_obj); 1342 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1343 (u_longlong_t)dd->dd_child_dir_zapobj); 1344 zdb_nicenum(dd->dd_used_bytes, nice); 1345 (void) printf("\t\tused_bytes = %s\n", nice); 1346 zdb_nicenum(dd->dd_compressed_bytes, nice); 1347 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1348 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1349 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1350 zdb_nicenum(dd->dd_quota, nice); 1351 (void) printf("\t\tquota = %s\n", nice); 1352 zdb_nicenum(dd->dd_reserved, nice); 1353 (void) printf("\t\treserved = %s\n", nice); 1354 (void) printf("\t\tprops_zapobj = %llu\n", 1355 (u_longlong_t)dd->dd_props_zapobj); 1356 (void) printf("\t\tdeleg_zapobj = %llu\n", 1357 (u_longlong_t)dd->dd_deleg_zapobj); 1358 (void) printf("\t\tflags = %llx\n", 1359 (u_longlong_t)dd->dd_flags); 1360 1361 #define DO(which) \ 1362 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1363 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1364 DO(HEAD); 1365 DO(SNAP); 1366 DO(CHILD); 1367 DO(CHILD_RSRV); 1368 DO(REFRSRV); 1369 #undef DO 1370 } 1371 1372 /*ARGSUSED*/ 1373 static void 1374 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1375 { 1376 dsl_dataset_phys_t *ds = data; 1377 time_t crtime; 1378 char used[32], compressed[32], uncompressed[32], unique[32]; 1379 char blkbuf[BP_SPRINTF_LEN]; 1380 1381 if (ds == NULL) 1382 return; 1383 1384 ASSERT(size == sizeof (*ds)); 1385 crtime = ds->ds_creation_time; 1386 zdb_nicenum(ds->ds_referenced_bytes, used); 1387 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1388 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1389 zdb_nicenum(ds->ds_unique_bytes, unique); 1390 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1391 1392 (void) printf("\t\tdir_obj = %llu\n", 1393 (u_longlong_t)ds->ds_dir_obj); 1394 (void) printf("\t\tprev_snap_obj = %llu\n", 1395 (u_longlong_t)ds->ds_prev_snap_obj); 1396 (void) printf("\t\tprev_snap_txg = %llu\n", 1397 (u_longlong_t)ds->ds_prev_snap_txg); 1398 (void) printf("\t\tnext_snap_obj = %llu\n", 1399 (u_longlong_t)ds->ds_next_snap_obj); 1400 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1401 (u_longlong_t)ds->ds_snapnames_zapobj); 1402 (void) printf("\t\tnum_children = %llu\n", 1403 (u_longlong_t)ds->ds_num_children); 1404 (void) printf("\t\tuserrefs_obj = %llu\n", 1405 (u_longlong_t)ds->ds_userrefs_obj); 1406 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1407 (void) printf("\t\tcreation_txg = %llu\n", 1408 (u_longlong_t)ds->ds_creation_txg); 1409 (void) printf("\t\tdeadlist_obj = %llu\n", 1410 (u_longlong_t)ds->ds_deadlist_obj); 1411 (void) printf("\t\tused_bytes = %s\n", used); 1412 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1413 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1414 (void) printf("\t\tunique = %s\n", unique); 1415 (void) printf("\t\tfsid_guid = %llu\n", 1416 (u_longlong_t)ds->ds_fsid_guid); 1417 (void) printf("\t\tguid = %llu\n", 1418 (u_longlong_t)ds->ds_guid); 1419 (void) printf("\t\tflags = %llx\n", 1420 (u_longlong_t)ds->ds_flags); 1421 (void) printf("\t\tnext_clones_obj = %llu\n", 1422 (u_longlong_t)ds->ds_next_clones_obj); 1423 (void) printf("\t\tprops_obj = %llu\n", 1424 (u_longlong_t)ds->ds_props_obj); 1425 (void) printf("\t\tbp = %s\n", blkbuf); 1426 } 1427 1428 /* ARGSUSED */ 1429 static int 1430 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1431 { 1432 char blkbuf[BP_SPRINTF_LEN]; 1433 1434 if (bp->blk_birth != 0) { 1435 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1436 (void) printf("\t%s\n", blkbuf); 1437 } 1438 return (0); 1439 } 1440 1441 static void 1442 dump_bptree(objset_t *os, uint64_t obj, char *name) 1443 { 1444 char bytes[32]; 1445 bptree_phys_t *bt; 1446 dmu_buf_t *db; 1447 1448 if (dump_opt['d'] < 3) 1449 return; 1450 1451 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1452 bt = db->db_data; 1453 zdb_nicenum(bt->bt_bytes, bytes); 1454 (void) printf("\n %s: %llu datasets, %s\n", 1455 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1456 dmu_buf_rele(db, FTAG); 1457 1458 if (dump_opt['d'] < 5) 1459 return; 1460 1461 (void) printf("\n"); 1462 1463 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1464 } 1465 1466 /* ARGSUSED */ 1467 static int 1468 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1469 { 1470 char blkbuf[BP_SPRINTF_LEN]; 1471 1472 ASSERT(bp->blk_birth != 0); 1473 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1474 (void) printf("\t%s\n", blkbuf); 1475 return (0); 1476 } 1477 1478 static void 1479 dump_full_bpobj(bpobj_t *bpo, char *name, int indent) 1480 { 1481 char bytes[32]; 1482 char comp[32]; 1483 char uncomp[32]; 1484 1485 if (dump_opt['d'] < 3) 1486 return; 1487 1488 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1489 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1490 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1491 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1492 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1493 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1494 indent * 8, name, 1495 (u_longlong_t)bpo->bpo_object, 1496 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1497 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1498 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1499 bytes, comp, uncomp); 1500 1501 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1502 uint64_t subobj; 1503 bpobj_t subbpo; 1504 int error; 1505 VERIFY0(dmu_read(bpo->bpo_os, 1506 bpo->bpo_phys->bpo_subobjs, 1507 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1508 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1509 if (error != 0) { 1510 (void) printf("ERROR %u while trying to open " 1511 "subobj id %llu\n", 1512 error, (u_longlong_t)subobj); 1513 continue; 1514 } 1515 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1516 bpobj_close(&subbpo); 1517 } 1518 } else { 1519 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1520 indent * 8, name, 1521 (u_longlong_t)bpo->bpo_object, 1522 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1523 bytes); 1524 } 1525 1526 if (dump_opt['d'] < 5) 1527 return; 1528 1529 1530 if (indent == 0) { 1531 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1532 (void) printf("\n"); 1533 } 1534 } 1535 1536 static void 1537 dump_deadlist(dsl_deadlist_t *dl) 1538 { 1539 dsl_deadlist_entry_t *dle; 1540 uint64_t unused; 1541 char bytes[32]; 1542 char comp[32]; 1543 char uncomp[32]; 1544 1545 if (dump_opt['d'] < 3) 1546 return; 1547 1548 if (dl->dl_oldfmt) { 1549 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1550 return; 1551 } 1552 1553 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1554 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1555 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1556 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1557 bytes, comp, uncomp); 1558 1559 if (dump_opt['d'] < 4) 1560 return; 1561 1562 (void) printf("\n"); 1563 1564 /* force the tree to be loaded */ 1565 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1566 1567 for (dle = avl_first(&dl->dl_tree); dle; 1568 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1569 if (dump_opt['d'] >= 5) { 1570 char buf[128]; 1571 (void) snprintf(buf, sizeof (buf), 1572 "mintxg %llu -> obj %llu", 1573 (longlong_t)dle->dle_mintxg, 1574 (longlong_t)dle->dle_bpobj.bpo_object); 1575 1576 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1577 } else { 1578 (void) printf("mintxg %llu -> obj %llu\n", 1579 (longlong_t)dle->dle_mintxg, 1580 (longlong_t)dle->dle_bpobj.bpo_object); 1581 1582 } 1583 } 1584 } 1585 1586 static avl_tree_t idx_tree; 1587 static avl_tree_t domain_tree; 1588 static boolean_t fuid_table_loaded; 1589 static objset_t *sa_os = NULL; 1590 static sa_attr_type_t *sa_attr_table = NULL; 1591 1592 static int 1593 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp) 1594 { 1595 int err; 1596 uint64_t sa_attrs = 0; 1597 uint64_t version = 0; 1598 1599 VERIFY3P(sa_os, ==, NULL); 1600 err = dmu_objset_own(path, type, B_TRUE, tag, osp); 1601 if (err != 0) { 1602 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path, 1603 strerror(err)); 1604 return (err); 1605 } 1606 1607 if (dmu_objset_type(*osp) == DMU_OST_ZFS) { 1608 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1609 8, 1, &version); 1610 if (version >= ZPL_VERSION_SA) { 1611 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1612 8, 1, &sa_attrs); 1613 } 1614 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, 1615 &sa_attr_table); 1616 if (err != 0) { 1617 (void) fprintf(stderr, "sa_setup failed: %s\n", 1618 strerror(err)); 1619 dmu_objset_disown(*osp, tag); 1620 *osp = NULL; 1621 } 1622 } 1623 sa_os = *osp; 1624 1625 return (0); 1626 } 1627 1628 static void 1629 close_objset(objset_t *os, void *tag) 1630 { 1631 VERIFY3P(os, ==, sa_os); 1632 if (os->os_sa != NULL) 1633 sa_tear_down(os); 1634 dmu_objset_disown(os, tag); 1635 sa_attr_table = NULL; 1636 sa_os = NULL; 1637 } 1638 1639 static void 1640 fuid_table_destroy() 1641 { 1642 if (fuid_table_loaded) { 1643 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1644 fuid_table_loaded = B_FALSE; 1645 } 1646 } 1647 1648 /* 1649 * print uid or gid information. 1650 * For normal POSIX id just the id is printed in decimal format. 1651 * For CIFS files with FUID the fuid is printed in hex followed by 1652 * the domain-rid string. 1653 */ 1654 static void 1655 print_idstr(uint64_t id, const char *id_type) 1656 { 1657 if (FUID_INDEX(id)) { 1658 char *domain; 1659 1660 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1661 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1662 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1663 } else { 1664 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1665 } 1666 1667 } 1668 1669 static void 1670 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1671 { 1672 uint32_t uid_idx, gid_idx; 1673 1674 uid_idx = FUID_INDEX(uid); 1675 gid_idx = FUID_INDEX(gid); 1676 1677 /* Load domain table, if not already loaded */ 1678 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1679 uint64_t fuid_obj; 1680 1681 /* first find the fuid object. It lives in the master node */ 1682 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1683 8, 1, &fuid_obj) == 0); 1684 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1685 (void) zfs_fuid_table_load(os, fuid_obj, 1686 &idx_tree, &domain_tree); 1687 fuid_table_loaded = B_TRUE; 1688 } 1689 1690 print_idstr(uid, "uid"); 1691 print_idstr(gid, "gid"); 1692 } 1693 1694 /*ARGSUSED*/ 1695 static void 1696 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1697 { 1698 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1699 sa_handle_t *hdl; 1700 uint64_t xattr, rdev, gen; 1701 uint64_t uid, gid, mode, fsize, parent, links; 1702 uint64_t pflags; 1703 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1704 time_t z_crtime, z_atime, z_mtime, z_ctime; 1705 sa_bulk_attr_t bulk[12]; 1706 int idx = 0; 1707 int error; 1708 1709 VERIFY3P(os, ==, sa_os); 1710 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1711 (void) printf("Failed to get handle for SA znode\n"); 1712 return; 1713 } 1714 1715 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1716 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1717 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1718 &links, 8); 1719 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1720 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1721 &mode, 8); 1722 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1723 NULL, &parent, 8); 1724 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1725 &fsize, 8); 1726 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1727 acctm, 16); 1728 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1729 modtm, 16); 1730 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1731 crtm, 16); 1732 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1733 chgtm, 16); 1734 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1735 &pflags, 8); 1736 1737 if (sa_bulk_lookup(hdl, bulk, idx)) { 1738 (void) sa_handle_destroy(hdl); 1739 return; 1740 } 1741 1742 z_crtime = (time_t)crtm[0]; 1743 z_atime = (time_t)acctm[0]; 1744 z_mtime = (time_t)modtm[0]; 1745 z_ctime = (time_t)chgtm[0]; 1746 1747 if (dump_opt['d'] > 4) { 1748 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1749 if (error != 0) { 1750 (void) snprintf(path, sizeof (path), 1751 "\?\?\?<object#%llu>", (u_longlong_t)object); 1752 } 1753 (void) printf("\tpath %s\n", path); 1754 } 1755 dump_uidgid(os, uid, gid); 1756 (void) printf("\tatime %s", ctime(&z_atime)); 1757 (void) printf("\tmtime %s", ctime(&z_mtime)); 1758 (void) printf("\tctime %s", ctime(&z_ctime)); 1759 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1760 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1761 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1762 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1763 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1764 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1765 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1766 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1767 sizeof (uint64_t)) == 0) 1768 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1769 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1770 sizeof (uint64_t)) == 0) 1771 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1772 sa_handle_destroy(hdl); 1773 } 1774 1775 /*ARGSUSED*/ 1776 static void 1777 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1778 { 1779 } 1780 1781 /*ARGSUSED*/ 1782 static void 1783 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1784 { 1785 } 1786 1787 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1788 dump_none, /* unallocated */ 1789 dump_zap, /* object directory */ 1790 dump_uint64, /* object array */ 1791 dump_none, /* packed nvlist */ 1792 dump_packed_nvlist, /* packed nvlist size */ 1793 dump_none, /* bpobj */ 1794 dump_bpobj, /* bpobj header */ 1795 dump_none, /* SPA space map header */ 1796 dump_none, /* SPA space map */ 1797 dump_none, /* ZIL intent log */ 1798 dump_dnode, /* DMU dnode */ 1799 dump_dmu_objset, /* DMU objset */ 1800 dump_dsl_dir, /* DSL directory */ 1801 dump_zap, /* DSL directory child map */ 1802 dump_zap, /* DSL dataset snap map */ 1803 dump_zap, /* DSL props */ 1804 dump_dsl_dataset, /* DSL dataset */ 1805 dump_znode, /* ZFS znode */ 1806 dump_acl, /* ZFS V0 ACL */ 1807 dump_uint8, /* ZFS plain file */ 1808 dump_zpldir, /* ZFS directory */ 1809 dump_zap, /* ZFS master node */ 1810 dump_zap, /* ZFS delete queue */ 1811 dump_uint8, /* zvol object */ 1812 dump_zap, /* zvol prop */ 1813 dump_uint8, /* other uint8[] */ 1814 dump_uint64, /* other uint64[] */ 1815 dump_zap, /* other ZAP */ 1816 dump_zap, /* persistent error log */ 1817 dump_uint8, /* SPA history */ 1818 dump_history_offsets, /* SPA history offsets */ 1819 dump_zap, /* Pool properties */ 1820 dump_zap, /* DSL permissions */ 1821 dump_acl, /* ZFS ACL */ 1822 dump_uint8, /* ZFS SYSACL */ 1823 dump_none, /* FUID nvlist */ 1824 dump_packed_nvlist, /* FUID nvlist size */ 1825 dump_zap, /* DSL dataset next clones */ 1826 dump_zap, /* DSL scrub queue */ 1827 dump_zap, /* ZFS user/group used */ 1828 dump_zap, /* ZFS user/group quota */ 1829 dump_zap, /* snapshot refcount tags */ 1830 dump_ddt_zap, /* DDT ZAP object */ 1831 dump_zap, /* DDT statistics */ 1832 dump_znode, /* SA object */ 1833 dump_zap, /* SA Master Node */ 1834 dump_sa_attrs, /* SA attribute registration */ 1835 dump_sa_layouts, /* SA attribute layouts */ 1836 dump_zap, /* DSL scrub translations */ 1837 dump_none, /* fake dedup BP */ 1838 dump_zap, /* deadlist */ 1839 dump_none, /* deadlist hdr */ 1840 dump_zap, /* dsl clones */ 1841 dump_bpobj_subobjs, /* bpobj subobjs */ 1842 dump_unknown, /* Unknown type, must be last */ 1843 }; 1844 1845 static void 1846 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1847 { 1848 dmu_buf_t *db = NULL; 1849 dmu_object_info_t doi; 1850 dnode_t *dn; 1851 void *bonus = NULL; 1852 size_t bsize = 0; 1853 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1854 char bonus_size[32]; 1855 char aux[50]; 1856 int error; 1857 1858 if (*print_header) { 1859 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1860 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1861 "%full", "type"); 1862 *print_header = 0; 1863 } 1864 1865 if (object == 0) { 1866 dn = DMU_META_DNODE(os); 1867 } else { 1868 error = dmu_bonus_hold(os, object, FTAG, &db); 1869 if (error) 1870 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1871 object, error); 1872 bonus = db->db_data; 1873 bsize = db->db_size; 1874 dn = DB_DNODE((dmu_buf_impl_t *)db); 1875 } 1876 dmu_object_info_from_dnode(dn, &doi); 1877 1878 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1879 zdb_nicenum(doi.doi_data_block_size, dblk); 1880 zdb_nicenum(doi.doi_max_offset, lsize); 1881 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1882 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1883 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1884 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1885 doi.doi_max_offset); 1886 1887 aux[0] = '\0'; 1888 1889 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1890 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1891 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1892 } 1893 1894 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1895 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1896 ZDB_COMPRESS_NAME(doi.doi_compress)); 1897 } 1898 1899 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1900 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1901 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1902 1903 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1904 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1905 "", "", "", "", "", bonus_size, "bonus", 1906 ZDB_OT_NAME(doi.doi_bonus_type)); 1907 } 1908 1909 if (verbosity >= 4) { 1910 (void) printf("\tdnode flags: %s%s%s\n", 1911 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1912 "USED_BYTES " : "", 1913 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1914 "USERUSED_ACCOUNTED " : "", 1915 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1916 "SPILL_BLKPTR" : ""); 1917 (void) printf("\tdnode maxblkid: %llu\n", 1918 (longlong_t)dn->dn_phys->dn_maxblkid); 1919 1920 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1921 bonus, bsize); 1922 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1923 *print_header = 1; 1924 } 1925 1926 if (verbosity >= 5) 1927 dump_indirect(dn); 1928 1929 if (verbosity >= 5) { 1930 /* 1931 * Report the list of segments that comprise the object. 1932 */ 1933 uint64_t start = 0; 1934 uint64_t end; 1935 uint64_t blkfill = 1; 1936 int minlvl = 1; 1937 1938 if (dn->dn_type == DMU_OT_DNODE) { 1939 minlvl = 0; 1940 blkfill = DNODES_PER_BLOCK; 1941 } 1942 1943 for (;;) { 1944 char segsize[32]; 1945 error = dnode_next_offset(dn, 1946 0, &start, minlvl, blkfill, 0); 1947 if (error) 1948 break; 1949 end = start; 1950 error = dnode_next_offset(dn, 1951 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1952 zdb_nicenum(end - start, segsize); 1953 (void) printf("\t\tsegment [%016llx, %016llx)" 1954 " size %5s\n", (u_longlong_t)start, 1955 (u_longlong_t)end, segsize); 1956 if (error) 1957 break; 1958 start = end; 1959 } 1960 } 1961 1962 if (db != NULL) 1963 dmu_buf_rele(db, FTAG); 1964 } 1965 1966 static char *objset_types[DMU_OST_NUMTYPES] = { 1967 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1968 1969 static void 1970 dump_dir(objset_t *os) 1971 { 1972 dmu_objset_stats_t dds; 1973 uint64_t object, object_count; 1974 uint64_t refdbytes, usedobjs, scratch; 1975 char numbuf[32]; 1976 char blkbuf[BP_SPRINTF_LEN + 20]; 1977 char osname[ZFS_MAX_DATASET_NAME_LEN]; 1978 char *type = "UNKNOWN"; 1979 int verbosity = dump_opt['d']; 1980 int print_header = 1; 1981 int i, error; 1982 1983 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1984 dmu_objset_fast_stat(os, &dds); 1985 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1986 1987 if (dds.dds_type < DMU_OST_NUMTYPES) 1988 type = objset_types[dds.dds_type]; 1989 1990 if (dds.dds_type == DMU_OST_META) { 1991 dds.dds_creation_txg = TXG_INITIAL; 1992 usedobjs = BP_GET_FILL(os->os_rootbp); 1993 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 1994 dd_used_bytes; 1995 } else { 1996 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1997 } 1998 1999 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 2000 2001 zdb_nicenum(refdbytes, numbuf); 2002 2003 if (verbosity >= 4) { 2004 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 2005 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 2006 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 2007 } else { 2008 blkbuf[0] = '\0'; 2009 } 2010 2011 dmu_objset_name(os, osname); 2012 2013 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 2014 "%s, %llu objects%s\n", 2015 osname, type, (u_longlong_t)dmu_objset_id(os), 2016 (u_longlong_t)dds.dds_creation_txg, 2017 numbuf, (u_longlong_t)usedobjs, blkbuf); 2018 2019 if (zopt_objects != 0) { 2020 for (i = 0; i < zopt_objects; i++) 2021 dump_object(os, zopt_object[i], verbosity, 2022 &print_header); 2023 (void) printf("\n"); 2024 return; 2025 } 2026 2027 if (dump_opt['i'] != 0 || verbosity >= 2) 2028 dump_intent_log(dmu_objset_zil(os)); 2029 2030 if (dmu_objset_ds(os) != NULL) 2031 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 2032 2033 if (verbosity < 2) 2034 return; 2035 2036 if (BP_IS_HOLE(os->os_rootbp)) 2037 return; 2038 2039 dump_object(os, 0, verbosity, &print_header); 2040 object_count = 0; 2041 if (DMU_USERUSED_DNODE(os) != NULL && 2042 DMU_USERUSED_DNODE(os)->dn_type != 0) { 2043 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 2044 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 2045 } 2046 2047 object = 0; 2048 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 2049 dump_object(os, object, verbosity, &print_header); 2050 object_count++; 2051 } 2052 2053 ASSERT3U(object_count, ==, usedobjs); 2054 2055 (void) printf("\n"); 2056 2057 if (error != ESRCH) { 2058 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2059 abort(); 2060 } 2061 } 2062 2063 static void 2064 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2065 { 2066 time_t timestamp = ub->ub_timestamp; 2067 2068 (void) printf(header ? header : ""); 2069 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2070 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2071 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2072 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2073 (void) printf("\ttimestamp = %llu UTC = %s", 2074 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2075 if (dump_opt['u'] >= 3) { 2076 char blkbuf[BP_SPRINTF_LEN]; 2077 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2078 (void) printf("\trootbp = %s\n", blkbuf); 2079 } 2080 (void) printf(footer ? footer : ""); 2081 } 2082 2083 static void 2084 dump_config(spa_t *spa) 2085 { 2086 dmu_buf_t *db; 2087 size_t nvsize = 0; 2088 int error = 0; 2089 2090 2091 error = dmu_bonus_hold(spa->spa_meta_objset, 2092 spa->spa_config_object, FTAG, &db); 2093 2094 if (error == 0) { 2095 nvsize = *(uint64_t *)db->db_data; 2096 dmu_buf_rele(db, FTAG); 2097 2098 (void) printf("\nMOS Configuration:\n"); 2099 dump_packed_nvlist(spa->spa_meta_objset, 2100 spa->spa_config_object, (void *)&nvsize, 1); 2101 } else { 2102 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2103 (u_longlong_t)spa->spa_config_object, error); 2104 } 2105 } 2106 2107 static void 2108 dump_cachefile(const char *cachefile) 2109 { 2110 int fd; 2111 struct stat64 statbuf; 2112 char *buf; 2113 nvlist_t *config; 2114 2115 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2116 (void) printf("cannot open '%s': %s\n", cachefile, 2117 strerror(errno)); 2118 exit(1); 2119 } 2120 2121 if (fstat64(fd, &statbuf) != 0) { 2122 (void) printf("failed to stat '%s': %s\n", cachefile, 2123 strerror(errno)); 2124 exit(1); 2125 } 2126 2127 if ((buf = malloc(statbuf.st_size)) == NULL) { 2128 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2129 (u_longlong_t)statbuf.st_size); 2130 exit(1); 2131 } 2132 2133 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2134 (void) fprintf(stderr, "failed to read %llu bytes\n", 2135 (u_longlong_t)statbuf.st_size); 2136 exit(1); 2137 } 2138 2139 (void) close(fd); 2140 2141 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2142 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2143 exit(1); 2144 } 2145 2146 free(buf); 2147 2148 dump_nvlist(config, 0); 2149 2150 nvlist_free(config); 2151 } 2152 2153 #define ZDB_MAX_UB_HEADER_SIZE 32 2154 2155 static void 2156 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2157 { 2158 vdev_t vd; 2159 vdev_t *vdp = &vd; 2160 char header[ZDB_MAX_UB_HEADER_SIZE]; 2161 2162 vd.vdev_ashift = ashift; 2163 vdp->vdev_top = vdp; 2164 2165 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2166 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2167 uberblock_t *ub = (void *)((char *)lbl + uoff); 2168 2169 if (uberblock_verify(ub)) 2170 continue; 2171 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2172 "Uberblock[%d]\n", i); 2173 dump_uberblock(ub, header, ""); 2174 } 2175 } 2176 2177 static char curpath[PATH_MAX]; 2178 2179 /* 2180 * Iterate through the path components, recursively passing 2181 * current one's obj and remaining path until we find the obj 2182 * for the last one. 2183 */ 2184 static int 2185 dump_path_impl(objset_t *os, uint64_t obj, char *name) 2186 { 2187 int err; 2188 int header = 1; 2189 uint64_t child_obj; 2190 char *s; 2191 dmu_buf_t *db; 2192 dmu_object_info_t doi; 2193 2194 if ((s = strchr(name, '/')) != NULL) 2195 *s = '\0'; 2196 err = zap_lookup(os, obj, name, 8, 1, &child_obj); 2197 2198 (void) strlcat(curpath, name, sizeof (curpath)); 2199 2200 if (err != 0) { 2201 (void) fprintf(stderr, "failed to lookup %s: %s\n", 2202 curpath, strerror(err)); 2203 return (err); 2204 } 2205 2206 child_obj = ZFS_DIRENT_OBJ(child_obj); 2207 err = sa_buf_hold(os, child_obj, FTAG, &db); 2208 if (err != 0) { 2209 (void) fprintf(stderr, 2210 "failed to get SA dbuf for obj %llu: %s\n", 2211 (u_longlong_t)child_obj, strerror(err)); 2212 return (EINVAL); 2213 } 2214 dmu_object_info_from_db(db, &doi); 2215 sa_buf_rele(db, FTAG); 2216 2217 if (doi.doi_bonus_type != DMU_OT_SA && 2218 doi.doi_bonus_type != DMU_OT_ZNODE) { 2219 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", 2220 doi.doi_bonus_type, (u_longlong_t)child_obj); 2221 return (EINVAL); 2222 } 2223 2224 if (dump_opt['v'] > 6) { 2225 (void) printf("obj=%llu %s type=%d bonustype=%d\n", 2226 (u_longlong_t)child_obj, curpath, doi.doi_type, 2227 doi.doi_bonus_type); 2228 } 2229 2230 (void) strlcat(curpath, "/", sizeof (curpath)); 2231 2232 switch (doi.doi_type) { 2233 case DMU_OT_DIRECTORY_CONTENTS: 2234 if (s != NULL && *(s + 1) != '\0') 2235 return (dump_path_impl(os, child_obj, s + 1)); 2236 /*FALLTHROUGH*/ 2237 case DMU_OT_PLAIN_FILE_CONTENTS: 2238 dump_object(os, child_obj, dump_opt['v'], &header); 2239 return (0); 2240 default: 2241 (void) fprintf(stderr, "object %llu has non-file/directory " 2242 "type %d\n", (u_longlong_t)obj, doi.doi_type); 2243 break; 2244 } 2245 2246 return (EINVAL); 2247 } 2248 2249 /* 2250 * Dump the blocks for the object specified by path inside the dataset. 2251 */ 2252 static int 2253 dump_path(char *ds, char *path) 2254 { 2255 int err; 2256 objset_t *os; 2257 uint64_t root_obj; 2258 2259 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os); 2260 if (err != 0) 2261 return (err); 2262 2263 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); 2264 if (err != 0) { 2265 (void) fprintf(stderr, "can't lookup root znode: %s\n", 2266 strerror(err)); 2267 dmu_objset_disown(os, FTAG); 2268 return (EINVAL); 2269 } 2270 2271 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); 2272 2273 err = dump_path_impl(os, root_obj, path); 2274 2275 close_objset(os, FTAG); 2276 return (err); 2277 } 2278 2279 static int 2280 dump_label(const char *dev) 2281 { 2282 int fd; 2283 vdev_label_t label; 2284 char path[MAXPATHLEN]; 2285 char *buf = label.vl_vdev_phys.vp_nvlist; 2286 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2287 struct stat64 statbuf; 2288 uint64_t psize, ashift; 2289 boolean_t label_found = B_FALSE; 2290 2291 (void) strlcpy(path, dev, sizeof (path)); 2292 if (dev[0] == '/') { 2293 if (strncmp(dev, ZFS_DISK_ROOTD, 2294 strlen(ZFS_DISK_ROOTD)) == 0) { 2295 (void) snprintf(path, sizeof (path), "%s%s", 2296 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD)); 2297 } 2298 } else if (stat64(path, &statbuf) != 0) { 2299 char *s; 2300 2301 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD, 2302 dev); 2303 if ((s = strrchr(dev, 's')) == NULL || !isdigit(*(s + 1))) 2304 (void) strlcat(path, "s0", sizeof (path)); 2305 } 2306 2307 if (stat64(path, &statbuf) != 0) { 2308 (void) printf("failed to stat '%s': %s\n", path, 2309 strerror(errno)); 2310 exit(1); 2311 } 2312 2313 if (S_ISBLK(statbuf.st_mode)) { 2314 (void) printf("cannot use '%s': character device required\n", 2315 path); 2316 exit(1); 2317 } 2318 2319 if ((fd = open64(path, O_RDONLY)) < 0) { 2320 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2321 exit(1); 2322 } 2323 2324 psize = statbuf.st_size; 2325 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2326 2327 for (int l = 0; l < VDEV_LABELS; l++) { 2328 nvlist_t *config = NULL; 2329 2330 if (!dump_opt['q']) { 2331 (void) printf("------------------------------------\n"); 2332 (void) printf("LABEL %d\n", l); 2333 (void) printf("------------------------------------\n"); 2334 } 2335 2336 if (pread64(fd, &label, sizeof (label), 2337 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2338 if (!dump_opt['q']) 2339 (void) printf("failed to read label %d\n", l); 2340 continue; 2341 } 2342 2343 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2344 if (!dump_opt['q']) 2345 (void) printf("failed to unpack label %d\n", l); 2346 ashift = SPA_MINBLOCKSHIFT; 2347 } else { 2348 nvlist_t *vdev_tree = NULL; 2349 2350 if (!dump_opt['q']) 2351 dump_nvlist(config, 4); 2352 if ((nvlist_lookup_nvlist(config, 2353 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2354 (nvlist_lookup_uint64(vdev_tree, 2355 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2356 ashift = SPA_MINBLOCKSHIFT; 2357 nvlist_free(config); 2358 label_found = B_TRUE; 2359 } 2360 if (dump_opt['u']) 2361 dump_label_uberblocks(&label, ashift); 2362 } 2363 2364 (void) close(fd); 2365 2366 return (label_found ? 0 : 2); 2367 } 2368 2369 static uint64_t dataset_feature_count[SPA_FEATURES]; 2370 2371 /*ARGSUSED*/ 2372 static int 2373 dump_one_dir(const char *dsname, void *arg) 2374 { 2375 int error; 2376 objset_t *os; 2377 2378 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os); 2379 if (error != 0) 2380 return (0); 2381 2382 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2383 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2384 continue; 2385 ASSERT(spa_feature_table[f].fi_flags & 2386 ZFEATURE_FLAG_PER_DATASET); 2387 dataset_feature_count[f]++; 2388 } 2389 2390 dump_dir(os); 2391 close_objset(os, FTAG); 2392 fuid_table_destroy(); 2393 return (0); 2394 } 2395 2396 /* 2397 * Block statistics. 2398 */ 2399 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2400 typedef struct zdb_blkstats { 2401 uint64_t zb_asize; 2402 uint64_t zb_lsize; 2403 uint64_t zb_psize; 2404 uint64_t zb_count; 2405 uint64_t zb_gangs; 2406 uint64_t zb_ditto_samevdev; 2407 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2408 } zdb_blkstats_t; 2409 2410 /* 2411 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2412 */ 2413 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2414 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2415 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2416 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2417 2418 static char *zdb_ot_extname[] = { 2419 "deferred free", 2420 "dedup ditto", 2421 "other", 2422 "Total", 2423 }; 2424 2425 #define ZB_TOTAL DN_MAX_LEVELS 2426 2427 typedef struct zdb_cb { 2428 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2429 uint64_t zcb_dedup_asize; 2430 uint64_t zcb_dedup_blocks; 2431 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2432 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2433 [BPE_PAYLOAD_SIZE]; 2434 uint64_t zcb_start; 2435 uint64_t zcb_lastprint; 2436 uint64_t zcb_totalasize; 2437 uint64_t zcb_errors[256]; 2438 int zcb_readfails; 2439 int zcb_haderrors; 2440 spa_t *zcb_spa; 2441 } zdb_cb_t; 2442 2443 static void 2444 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2445 dmu_object_type_t type) 2446 { 2447 uint64_t refcnt = 0; 2448 2449 ASSERT(type < ZDB_OT_TOTAL); 2450 2451 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2452 return; 2453 2454 for (int i = 0; i < 4; i++) { 2455 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2456 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2457 int equal; 2458 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2459 2460 zb->zb_asize += BP_GET_ASIZE(bp); 2461 zb->zb_lsize += BP_GET_LSIZE(bp); 2462 zb->zb_psize += BP_GET_PSIZE(bp); 2463 zb->zb_count++; 2464 2465 /* 2466 * The histogram is only big enough to record blocks up to 2467 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2468 * "other", bucket. 2469 */ 2470 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2471 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2472 zb->zb_psize_histogram[idx]++; 2473 2474 zb->zb_gangs += BP_COUNT_GANG(bp); 2475 2476 switch (BP_GET_NDVAS(bp)) { 2477 case 2: 2478 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2479 DVA_GET_VDEV(&bp->blk_dva[1])) 2480 zb->zb_ditto_samevdev++; 2481 break; 2482 case 3: 2483 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2484 DVA_GET_VDEV(&bp->blk_dva[1])) + 2485 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2486 DVA_GET_VDEV(&bp->blk_dva[2])) + 2487 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2488 DVA_GET_VDEV(&bp->blk_dva[2])); 2489 if (equal != 0) 2490 zb->zb_ditto_samevdev++; 2491 break; 2492 } 2493 2494 } 2495 2496 if (BP_IS_EMBEDDED(bp)) { 2497 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2498 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2499 [BPE_GET_PSIZE(bp)]++; 2500 return; 2501 } 2502 2503 if (dump_opt['L']) 2504 return; 2505 2506 if (BP_GET_DEDUP(bp)) { 2507 ddt_t *ddt; 2508 ddt_entry_t *dde; 2509 2510 ddt = ddt_select(zcb->zcb_spa, bp); 2511 ddt_enter(ddt); 2512 dde = ddt_lookup(ddt, bp, B_FALSE); 2513 2514 if (dde == NULL) { 2515 refcnt = 0; 2516 } else { 2517 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2518 ddt_phys_decref(ddp); 2519 refcnt = ddp->ddp_refcnt; 2520 if (ddt_phys_total_refcnt(dde) == 0) 2521 ddt_remove(ddt, dde); 2522 } 2523 ddt_exit(ddt); 2524 } 2525 2526 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2527 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2528 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2529 } 2530 2531 static void 2532 zdb_blkptr_done(zio_t *zio) 2533 { 2534 spa_t *spa = zio->io_spa; 2535 blkptr_t *bp = zio->io_bp; 2536 int ioerr = zio->io_error; 2537 zdb_cb_t *zcb = zio->io_private; 2538 zbookmark_phys_t *zb = &zio->io_bookmark; 2539 2540 zio_data_buf_free(zio->io_data, zio->io_size); 2541 2542 mutex_enter(&spa->spa_scrub_lock); 2543 spa->spa_scrub_inflight--; 2544 cv_broadcast(&spa->spa_scrub_io_cv); 2545 2546 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2547 char blkbuf[BP_SPRINTF_LEN]; 2548 2549 zcb->zcb_haderrors = 1; 2550 zcb->zcb_errors[ioerr]++; 2551 2552 if (dump_opt['b'] >= 2) 2553 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2554 else 2555 blkbuf[0] = '\0'; 2556 2557 (void) printf("zdb_blkptr_cb: " 2558 "Got error %d reading " 2559 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2560 ioerr, 2561 (u_longlong_t)zb->zb_objset, 2562 (u_longlong_t)zb->zb_object, 2563 (u_longlong_t)zb->zb_level, 2564 (u_longlong_t)zb->zb_blkid, 2565 blkbuf); 2566 } 2567 mutex_exit(&spa->spa_scrub_lock); 2568 } 2569 2570 static int 2571 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2572 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2573 { 2574 zdb_cb_t *zcb = arg; 2575 dmu_object_type_t type; 2576 boolean_t is_metadata; 2577 2578 if (bp == NULL) 2579 return (0); 2580 2581 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2582 char blkbuf[BP_SPRINTF_LEN]; 2583 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2584 (void) printf("objset %llu object %llu " 2585 "level %lld offset 0x%llx %s\n", 2586 (u_longlong_t)zb->zb_objset, 2587 (u_longlong_t)zb->zb_object, 2588 (longlong_t)zb->zb_level, 2589 (u_longlong_t)blkid2offset(dnp, bp, zb), 2590 blkbuf); 2591 } 2592 2593 if (BP_IS_HOLE(bp)) 2594 return (0); 2595 2596 type = BP_GET_TYPE(bp); 2597 2598 zdb_count_block(zcb, zilog, bp, 2599 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2600 2601 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2602 2603 if (!BP_IS_EMBEDDED(bp) && 2604 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2605 size_t size = BP_GET_PSIZE(bp); 2606 void *data = zio_data_buf_alloc(size); 2607 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2608 2609 /* If it's an intent log block, failure is expected. */ 2610 if (zb->zb_level == ZB_ZIL_LEVEL) 2611 flags |= ZIO_FLAG_SPECULATIVE; 2612 2613 mutex_enter(&spa->spa_scrub_lock); 2614 while (spa->spa_scrub_inflight > max_inflight) 2615 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2616 spa->spa_scrub_inflight++; 2617 mutex_exit(&spa->spa_scrub_lock); 2618 2619 zio_nowait(zio_read(NULL, spa, bp, data, size, 2620 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2621 } 2622 2623 zcb->zcb_readfails = 0; 2624 2625 /* only call gethrtime() every 100 blocks */ 2626 static int iters; 2627 if (++iters > 100) 2628 iters = 0; 2629 else 2630 return (0); 2631 2632 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2633 uint64_t now = gethrtime(); 2634 char buf[10]; 2635 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2636 int kb_per_sec = 2637 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2638 int sec_remaining = 2639 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2640 2641 zfs_nicenum(bytes, buf, sizeof (buf)); 2642 (void) fprintf(stderr, 2643 "\r%5s completed (%4dMB/s) " 2644 "estimated time remaining: %uhr %02umin %02usec ", 2645 buf, kb_per_sec / 1024, 2646 sec_remaining / 60 / 60, 2647 sec_remaining / 60 % 60, 2648 sec_remaining % 60); 2649 2650 zcb->zcb_lastprint = now; 2651 } 2652 2653 return (0); 2654 } 2655 2656 static void 2657 zdb_leak(void *arg, uint64_t start, uint64_t size) 2658 { 2659 vdev_t *vd = arg; 2660 2661 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2662 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2663 } 2664 2665 static metaslab_ops_t zdb_metaslab_ops = { 2666 NULL /* alloc */ 2667 }; 2668 2669 static void 2670 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2671 { 2672 ddt_bookmark_t ddb = { 0 }; 2673 ddt_entry_t dde; 2674 int error; 2675 2676 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2677 blkptr_t blk; 2678 ddt_phys_t *ddp = dde.dde_phys; 2679 2680 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2681 return; 2682 2683 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2684 2685 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2686 if (ddp->ddp_phys_birth == 0) 2687 continue; 2688 ddt_bp_create(ddb.ddb_checksum, 2689 &dde.dde_key, ddp, &blk); 2690 if (p == DDT_PHYS_DITTO) { 2691 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2692 } else { 2693 zcb->zcb_dedup_asize += 2694 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2695 zcb->zcb_dedup_blocks++; 2696 } 2697 } 2698 if (!dump_opt['L']) { 2699 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2700 ddt_enter(ddt); 2701 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2702 ddt_exit(ddt); 2703 } 2704 } 2705 2706 ASSERT(error == ENOENT); 2707 } 2708 2709 static void 2710 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2711 { 2712 zcb->zcb_spa = spa; 2713 2714 if (!dump_opt['L']) { 2715 vdev_t *rvd = spa->spa_root_vdev; 2716 2717 /* 2718 * We are going to be changing the meaning of the metaslab's 2719 * ms_tree. Ensure that the allocator doesn't try to 2720 * use the tree. 2721 */ 2722 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 2723 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 2724 2725 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 2726 vdev_t *vd = rvd->vdev_child[c]; 2727 metaslab_group_t *mg = vd->vdev_mg; 2728 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 2729 metaslab_t *msp = vd->vdev_ms[m]; 2730 ASSERT3P(msp->ms_group, ==, mg); 2731 mutex_enter(&msp->ms_lock); 2732 metaslab_unload(msp); 2733 2734 /* 2735 * For leak detection, we overload the metaslab 2736 * ms_tree to contain allocated segments 2737 * instead of free segments. As a result, 2738 * we can't use the normal metaslab_load/unload 2739 * interfaces. 2740 */ 2741 if (msp->ms_sm != NULL) { 2742 (void) fprintf(stderr, 2743 "\rloading space map for " 2744 "vdev %llu of %llu, " 2745 "metaslab %llu of %llu ...", 2746 (longlong_t)c, 2747 (longlong_t)rvd->vdev_children, 2748 (longlong_t)m, 2749 (longlong_t)vd->vdev_ms_count); 2750 2751 /* 2752 * We don't want to spend the CPU 2753 * manipulating the size-ordered 2754 * tree, so clear the range_tree 2755 * ops. 2756 */ 2757 msp->ms_tree->rt_ops = NULL; 2758 VERIFY0(space_map_load(msp->ms_sm, 2759 msp->ms_tree, SM_ALLOC)); 2760 2761 if (!msp->ms_loaded) { 2762 msp->ms_loaded = B_TRUE; 2763 } 2764 } 2765 mutex_exit(&msp->ms_lock); 2766 } 2767 } 2768 (void) fprintf(stderr, "\n"); 2769 } 2770 2771 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2772 2773 zdb_ddt_leak_init(spa, zcb); 2774 2775 spa_config_exit(spa, SCL_CONFIG, FTAG); 2776 } 2777 2778 static void 2779 zdb_leak_fini(spa_t *spa) 2780 { 2781 if (!dump_opt['L']) { 2782 vdev_t *rvd = spa->spa_root_vdev; 2783 for (int c = 0; c < rvd->vdev_children; c++) { 2784 vdev_t *vd = rvd->vdev_child[c]; 2785 metaslab_group_t *mg = vd->vdev_mg; 2786 for (int m = 0; m < vd->vdev_ms_count; m++) { 2787 metaslab_t *msp = vd->vdev_ms[m]; 2788 ASSERT3P(mg, ==, msp->ms_group); 2789 mutex_enter(&msp->ms_lock); 2790 2791 /* 2792 * The ms_tree has been overloaded to 2793 * contain allocated segments. Now that we 2794 * finished traversing all blocks, any 2795 * block that remains in the ms_tree 2796 * represents an allocated block that we 2797 * did not claim during the traversal. 2798 * Claimed blocks would have been removed 2799 * from the ms_tree. 2800 */ 2801 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2802 2803 if (msp->ms_loaded) { 2804 msp->ms_loaded = B_FALSE; 2805 } 2806 2807 mutex_exit(&msp->ms_lock); 2808 } 2809 } 2810 } 2811 } 2812 2813 /* ARGSUSED */ 2814 static int 2815 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2816 { 2817 zdb_cb_t *zcb = arg; 2818 2819 if (dump_opt['b'] >= 5) { 2820 char blkbuf[BP_SPRINTF_LEN]; 2821 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2822 (void) printf("[%s] %s\n", 2823 "deferred free", blkbuf); 2824 } 2825 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2826 return (0); 2827 } 2828 2829 static int 2830 dump_block_stats(spa_t *spa) 2831 { 2832 zdb_cb_t zcb = { 0 }; 2833 zdb_blkstats_t *zb, *tzb; 2834 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2835 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2836 boolean_t leaks = B_FALSE; 2837 2838 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2839 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2840 (dump_opt['c'] == 1) ? "metadata " : "", 2841 dump_opt['c'] ? "checksums " : "", 2842 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2843 !dump_opt['L'] ? "nothing leaked " : ""); 2844 2845 /* 2846 * Load all space maps as SM_ALLOC maps, then traverse the pool 2847 * claiming each block we discover. If the pool is perfectly 2848 * consistent, the space maps will be empty when we're done. 2849 * Anything left over is a leak; any block we can't claim (because 2850 * it's not part of any space map) is a double allocation, 2851 * reference to a freed block, or an unclaimed log block. 2852 */ 2853 zdb_leak_init(spa, &zcb); 2854 2855 /* 2856 * If there's a deferred-free bplist, process that first. 2857 */ 2858 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2859 count_block_cb, &zcb, NULL); 2860 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2861 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2862 count_block_cb, &zcb, NULL); 2863 } 2864 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2865 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2866 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2867 &zcb, NULL)); 2868 } 2869 2870 if (dump_opt['c'] > 1) 2871 flags |= TRAVERSE_PREFETCH_DATA; 2872 2873 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2874 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2875 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2876 2877 /* 2878 * If we've traversed the data blocks then we need to wait for those 2879 * I/Os to complete. We leverage "The Godfather" zio to wait on 2880 * all async I/Os to complete. 2881 */ 2882 if (dump_opt['c']) { 2883 for (int i = 0; i < max_ncpus; i++) { 2884 (void) zio_wait(spa->spa_async_zio_root[i]); 2885 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2886 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2887 ZIO_FLAG_GODFATHER); 2888 } 2889 } 2890 2891 if (zcb.zcb_haderrors) { 2892 (void) printf("\nError counts:\n\n"); 2893 (void) printf("\t%5s %s\n", "errno", "count"); 2894 for (int e = 0; e < 256; e++) { 2895 if (zcb.zcb_errors[e] != 0) { 2896 (void) printf("\t%5d %llu\n", 2897 e, (u_longlong_t)zcb.zcb_errors[e]); 2898 } 2899 } 2900 } 2901 2902 /* 2903 * Report any leaked segments. 2904 */ 2905 zdb_leak_fini(spa); 2906 2907 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2908 2909 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2910 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2911 2912 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2913 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2914 2915 if (total_found == total_alloc) { 2916 if (!dump_opt['L']) 2917 (void) printf("\n\tNo leaks (block sum matches space" 2918 " maps exactly)\n"); 2919 } else { 2920 (void) printf("block traversal size %llu != alloc %llu " 2921 "(%s %lld)\n", 2922 (u_longlong_t)total_found, 2923 (u_longlong_t)total_alloc, 2924 (dump_opt['L']) ? "unreachable" : "leaked", 2925 (longlong_t)(total_alloc - total_found)); 2926 leaks = B_TRUE; 2927 } 2928 2929 if (tzb->zb_count == 0) 2930 return (2); 2931 2932 (void) printf("\n"); 2933 (void) printf("\tbp count: %10llu\n", 2934 (u_longlong_t)tzb->zb_count); 2935 (void) printf("\tganged count: %10llu\n", 2936 (longlong_t)tzb->zb_gangs); 2937 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2938 (u_longlong_t)tzb->zb_lsize, 2939 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2940 (void) printf("\tbp physical: %10llu avg:" 2941 " %6llu compression: %6.2f\n", 2942 (u_longlong_t)tzb->zb_psize, 2943 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2944 (double)tzb->zb_lsize / tzb->zb_psize); 2945 (void) printf("\tbp allocated: %10llu avg:" 2946 " %6llu compression: %6.2f\n", 2947 (u_longlong_t)tzb->zb_asize, 2948 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2949 (double)tzb->zb_lsize / tzb->zb_asize); 2950 (void) printf("\tbp deduped: %10llu ref>1:" 2951 " %6llu deduplication: %6.2f\n", 2952 (u_longlong_t)zcb.zcb_dedup_asize, 2953 (u_longlong_t)zcb.zcb_dedup_blocks, 2954 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2955 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2956 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2957 2958 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2959 if (zcb.zcb_embedded_blocks[i] == 0) 2960 continue; 2961 (void) printf("\n"); 2962 (void) printf("\tadditional, non-pointer bps of type %u: " 2963 "%10llu\n", 2964 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2965 2966 if (dump_opt['b'] >= 3) { 2967 (void) printf("\t number of (compressed) bytes: " 2968 "number of bps\n"); 2969 dump_histogram(zcb.zcb_embedded_histogram[i], 2970 sizeof (zcb.zcb_embedded_histogram[i]) / 2971 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2972 } 2973 } 2974 2975 if (tzb->zb_ditto_samevdev != 0) { 2976 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2977 (longlong_t)tzb->zb_ditto_samevdev); 2978 } 2979 2980 if (dump_opt['b'] >= 2) { 2981 int l, t, level; 2982 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2983 "\t avg\t comp\t%%Total\tType\n"); 2984 2985 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2986 char csize[32], lsize[32], psize[32], asize[32]; 2987 char avg[32], gang[32]; 2988 char *typename; 2989 2990 if (t < DMU_OT_NUMTYPES) 2991 typename = dmu_ot[t].ot_name; 2992 else 2993 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2994 2995 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2996 (void) printf("%6s\t%5s\t%5s\t%5s" 2997 "\t%5s\t%5s\t%6s\t%s\n", 2998 "-", 2999 "-", 3000 "-", 3001 "-", 3002 "-", 3003 "-", 3004 "-", 3005 typename); 3006 continue; 3007 } 3008 3009 for (l = ZB_TOTAL - 1; l >= -1; l--) { 3010 level = (l == -1 ? ZB_TOTAL : l); 3011 zb = &zcb.zcb_type[level][t]; 3012 3013 if (zb->zb_asize == 0) 3014 continue; 3015 3016 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 3017 continue; 3018 3019 if (level == 0 && zb->zb_asize == 3020 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 3021 continue; 3022 3023 zdb_nicenum(zb->zb_count, csize); 3024 zdb_nicenum(zb->zb_lsize, lsize); 3025 zdb_nicenum(zb->zb_psize, psize); 3026 zdb_nicenum(zb->zb_asize, asize); 3027 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 3028 zdb_nicenum(zb->zb_gangs, gang); 3029 3030 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 3031 "\t%5.2f\t%6.2f\t", 3032 csize, lsize, psize, asize, avg, 3033 (double)zb->zb_lsize / zb->zb_psize, 3034 100.0 * zb->zb_asize / tzb->zb_asize); 3035 3036 if (level == ZB_TOTAL) 3037 (void) printf("%s\n", typename); 3038 else 3039 (void) printf(" L%d %s\n", 3040 level, typename); 3041 3042 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 3043 (void) printf("\t number of ganged " 3044 "blocks: %s\n", gang); 3045 } 3046 3047 if (dump_opt['b'] >= 4) { 3048 (void) printf("psize " 3049 "(in 512-byte sectors): " 3050 "number of blocks\n"); 3051 dump_histogram(zb->zb_psize_histogram, 3052 PSIZE_HISTO_SIZE, 0); 3053 } 3054 } 3055 } 3056 } 3057 3058 (void) printf("\n"); 3059 3060 if (leaks) 3061 return (2); 3062 3063 if (zcb.zcb_haderrors) 3064 return (3); 3065 3066 return (0); 3067 } 3068 3069 typedef struct zdb_ddt_entry { 3070 ddt_key_t zdde_key; 3071 uint64_t zdde_ref_blocks; 3072 uint64_t zdde_ref_lsize; 3073 uint64_t zdde_ref_psize; 3074 uint64_t zdde_ref_dsize; 3075 avl_node_t zdde_node; 3076 } zdb_ddt_entry_t; 3077 3078 /* ARGSUSED */ 3079 static int 3080 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 3081 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 3082 { 3083 avl_tree_t *t = arg; 3084 avl_index_t where; 3085 zdb_ddt_entry_t *zdde, zdde_search; 3086 3087 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 3088 return (0); 3089 3090 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 3091 (void) printf("traversing objset %llu, %llu objects, " 3092 "%lu blocks so far\n", 3093 (u_longlong_t)zb->zb_objset, 3094 (u_longlong_t)BP_GET_FILL(bp), 3095 avl_numnodes(t)); 3096 } 3097 3098 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 3099 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 3100 return (0); 3101 3102 ddt_key_fill(&zdde_search.zdde_key, bp); 3103 3104 zdde = avl_find(t, &zdde_search, &where); 3105 3106 if (zdde == NULL) { 3107 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 3108 zdde->zdde_key = zdde_search.zdde_key; 3109 avl_insert(t, zdde, where); 3110 } 3111 3112 zdde->zdde_ref_blocks += 1; 3113 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 3114 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 3115 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 3116 3117 return (0); 3118 } 3119 3120 static void 3121 dump_simulated_ddt(spa_t *spa) 3122 { 3123 avl_tree_t t; 3124 void *cookie = NULL; 3125 zdb_ddt_entry_t *zdde; 3126 ddt_histogram_t ddh_total = { 0 }; 3127 ddt_stat_t dds_total = { 0 }; 3128 3129 avl_create(&t, ddt_entry_compare, 3130 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 3131 3132 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3133 3134 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 3135 zdb_ddt_add_cb, &t); 3136 3137 spa_config_exit(spa, SCL_CONFIG, FTAG); 3138 3139 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 3140 ddt_stat_t dds; 3141 uint64_t refcnt = zdde->zdde_ref_blocks; 3142 ASSERT(refcnt != 0); 3143 3144 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 3145 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 3146 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 3147 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 3148 3149 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 3150 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 3151 dds.dds_ref_psize = zdde->zdde_ref_psize; 3152 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 3153 3154 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 3155 &dds, 0); 3156 3157 umem_free(zdde, sizeof (*zdde)); 3158 } 3159 3160 avl_destroy(&t); 3161 3162 ddt_histogram_stat(&dds_total, &ddh_total); 3163 3164 (void) printf("Simulated DDT histogram:\n"); 3165 3166 zpool_dump_ddt(&dds_total, &ddh_total); 3167 3168 dump_dedup_ratio(&dds_total); 3169 } 3170 3171 static void 3172 dump_zpool(spa_t *spa) 3173 { 3174 dsl_pool_t *dp = spa_get_dsl(spa); 3175 int rc = 0; 3176 3177 if (dump_opt['S']) { 3178 dump_simulated_ddt(spa); 3179 return; 3180 } 3181 3182 if (!dump_opt['e'] && dump_opt['C'] > 1) { 3183 (void) printf("\nCached configuration:\n"); 3184 dump_nvlist(spa->spa_config, 8); 3185 } 3186 3187 if (dump_opt['C']) 3188 dump_config(spa); 3189 3190 if (dump_opt['u']) 3191 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 3192 3193 if (dump_opt['D']) 3194 dump_all_ddts(spa); 3195 3196 if (dump_opt['d'] > 2 || dump_opt['m']) 3197 dump_metaslabs(spa); 3198 if (dump_opt['M']) 3199 dump_metaslab_groups(spa); 3200 3201 if (dump_opt['d'] || dump_opt['i']) { 3202 dump_dir(dp->dp_meta_objset); 3203 if (dump_opt['d'] >= 3) { 3204 dump_full_bpobj(&spa->spa_deferred_bpobj, 3205 "Deferred frees", 0); 3206 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 3207 dump_full_bpobj( 3208 &spa->spa_dsl_pool->dp_free_bpobj, 3209 "Pool snapshot frees", 0); 3210 } 3211 3212 if (spa_feature_is_active(spa, 3213 SPA_FEATURE_ASYNC_DESTROY)) { 3214 dump_bptree(spa->spa_meta_objset, 3215 spa->spa_dsl_pool->dp_bptree_obj, 3216 "Pool dataset frees"); 3217 } 3218 dump_dtl(spa->spa_root_vdev, 0); 3219 } 3220 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 3221 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 3222 3223 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 3224 uint64_t refcount; 3225 3226 if (!(spa_feature_table[f].fi_flags & 3227 ZFEATURE_FLAG_PER_DATASET) || 3228 !spa_feature_is_enabled(spa, f)) { 3229 ASSERT0(dataset_feature_count[f]); 3230 continue; 3231 } 3232 (void) feature_get_refcount(spa, 3233 &spa_feature_table[f], &refcount); 3234 if (dataset_feature_count[f] != refcount) { 3235 (void) printf("%s feature refcount mismatch: " 3236 "%lld datasets != %lld refcount\n", 3237 spa_feature_table[f].fi_uname, 3238 (longlong_t)dataset_feature_count[f], 3239 (longlong_t)refcount); 3240 rc = 2; 3241 } else { 3242 (void) printf("Verified %s feature refcount " 3243 "of %llu is correct\n", 3244 spa_feature_table[f].fi_uname, 3245 (longlong_t)refcount); 3246 } 3247 } 3248 } 3249 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 3250 rc = dump_block_stats(spa); 3251 3252 if (rc == 0) 3253 rc = verify_spacemap_refcounts(spa); 3254 3255 if (dump_opt['s']) 3256 show_pool_stats(spa); 3257 3258 if (dump_opt['h']) 3259 dump_history(spa); 3260 3261 if (rc != 0) { 3262 dump_debug_buffer(); 3263 exit(rc); 3264 } 3265 } 3266 3267 #define ZDB_FLAG_CHECKSUM 0x0001 3268 #define ZDB_FLAG_DECOMPRESS 0x0002 3269 #define ZDB_FLAG_BSWAP 0x0004 3270 #define ZDB_FLAG_GBH 0x0008 3271 #define ZDB_FLAG_INDIRECT 0x0010 3272 #define ZDB_FLAG_PHYS 0x0020 3273 #define ZDB_FLAG_RAW 0x0040 3274 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 3275 3276 int flagbits[256]; 3277 3278 static void 3279 zdb_print_blkptr(blkptr_t *bp, int flags) 3280 { 3281 char blkbuf[BP_SPRINTF_LEN]; 3282 3283 if (flags & ZDB_FLAG_BSWAP) 3284 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 3285 3286 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3287 (void) printf("%s\n", blkbuf); 3288 } 3289 3290 static void 3291 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 3292 { 3293 int i; 3294 3295 for (i = 0; i < nbps; i++) 3296 zdb_print_blkptr(&bp[i], flags); 3297 } 3298 3299 static void 3300 zdb_dump_gbh(void *buf, int flags) 3301 { 3302 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 3303 } 3304 3305 static void 3306 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 3307 { 3308 if (flags & ZDB_FLAG_BSWAP) 3309 byteswap_uint64_array(buf, size); 3310 (void) write(1, buf, size); 3311 } 3312 3313 static void 3314 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 3315 { 3316 uint64_t *d = (uint64_t *)buf; 3317 int nwords = size / sizeof (uint64_t); 3318 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 3319 int i, j; 3320 char *hdr, *c; 3321 3322 3323 if (do_bswap) 3324 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 3325 else 3326 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3327 3328 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3329 3330 for (i = 0; i < nwords; i += 2) { 3331 (void) printf("%06llx: %016llx %016llx ", 3332 (u_longlong_t)(i * sizeof (uint64_t)), 3333 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3334 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3335 3336 c = (char *)&d[i]; 3337 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3338 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3339 (void) printf("\n"); 3340 } 3341 } 3342 3343 /* 3344 * There are two acceptable formats: 3345 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3346 * child[.child]* - For example: 0.1.1 3347 * 3348 * The second form can be used to specify arbitrary vdevs anywhere 3349 * in the heirarchy. For example, in a pool with a mirror of 3350 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3351 */ 3352 static vdev_t * 3353 zdb_vdev_lookup(vdev_t *vdev, char *path) 3354 { 3355 char *s, *p, *q; 3356 int i; 3357 3358 if (vdev == NULL) 3359 return (NULL); 3360 3361 /* First, assume the x.x.x.x format */ 3362 i = (int)strtoul(path, &s, 10); 3363 if (s == path || (s && *s != '.' && *s != '\0')) 3364 goto name; 3365 if (i < 0 || i >= vdev->vdev_children) 3366 return (NULL); 3367 3368 vdev = vdev->vdev_child[i]; 3369 if (*s == '\0') 3370 return (vdev); 3371 return (zdb_vdev_lookup(vdev, s+1)); 3372 3373 name: 3374 for (i = 0; i < vdev->vdev_children; i++) { 3375 vdev_t *vc = vdev->vdev_child[i]; 3376 3377 if (vc->vdev_path == NULL) { 3378 vc = zdb_vdev_lookup(vc, path); 3379 if (vc == NULL) 3380 continue; 3381 else 3382 return (vc); 3383 } 3384 3385 p = strrchr(vc->vdev_path, '/'); 3386 p = p ? p + 1 : vc->vdev_path; 3387 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3388 3389 if (strcmp(vc->vdev_path, path) == 0) 3390 return (vc); 3391 if (strcmp(p, path) == 0) 3392 return (vc); 3393 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3394 return (vc); 3395 } 3396 3397 return (NULL); 3398 } 3399 3400 /* 3401 * Read a block from a pool and print it out. The syntax of the 3402 * block descriptor is: 3403 * 3404 * pool:vdev_specifier:offset:size[:flags] 3405 * 3406 * pool - The name of the pool you wish to read from 3407 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3408 * offset - offset, in hex, in bytes 3409 * size - Amount of data to read, in hex, in bytes 3410 * flags - A string of characters specifying options 3411 * b: Decode a blkptr at given offset within block 3412 * *c: Calculate and display checksums 3413 * d: Decompress data before dumping 3414 * e: Byteswap data before dumping 3415 * g: Display data as a gang block header 3416 * i: Display as an indirect block 3417 * p: Do I/O to physical offset 3418 * r: Dump raw data to stdout 3419 * 3420 * * = not yet implemented 3421 */ 3422 static void 3423 zdb_read_block(char *thing, spa_t *spa) 3424 { 3425 blkptr_t blk, *bp = &blk; 3426 dva_t *dva = bp->blk_dva; 3427 int flags = 0; 3428 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3429 zio_t *zio; 3430 vdev_t *vd; 3431 void *pbuf, *lbuf, *buf; 3432 char *s, *p, *dup, *vdev, *flagstr; 3433 int i, error; 3434 3435 dup = strdup(thing); 3436 s = strtok(dup, ":"); 3437 vdev = s ? s : ""; 3438 s = strtok(NULL, ":"); 3439 offset = strtoull(s ? s : "", NULL, 16); 3440 s = strtok(NULL, ":"); 3441 size = strtoull(s ? s : "", NULL, 16); 3442 s = strtok(NULL, ":"); 3443 flagstr = s ? s : ""; 3444 3445 s = NULL; 3446 if (size == 0) 3447 s = "size must not be zero"; 3448 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3449 s = "size must be a multiple of sector size"; 3450 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3451 s = "offset must be a multiple of sector size"; 3452 if (s) { 3453 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3454 free(dup); 3455 return; 3456 } 3457 3458 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3459 for (i = 0; flagstr[i]; i++) { 3460 int bit = flagbits[(uchar_t)flagstr[i]]; 3461 3462 if (bit == 0) { 3463 (void) printf("***Invalid flag: %c\n", 3464 flagstr[i]); 3465 continue; 3466 } 3467 flags |= bit; 3468 3469 /* If it's not something with an argument, keep going */ 3470 if ((bit & (ZDB_FLAG_CHECKSUM | 3471 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3472 continue; 3473 3474 p = &flagstr[i + 1]; 3475 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3476 blkptr_offset = strtoull(p, &p, 16); 3477 if (*p != ':' && *p != '\0') { 3478 (void) printf("***Invalid flag arg: '%s'\n", s); 3479 free(dup); 3480 return; 3481 } 3482 } 3483 } 3484 3485 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3486 if (vd == NULL) { 3487 (void) printf("***Invalid vdev: %s\n", vdev); 3488 free(dup); 3489 return; 3490 } else { 3491 if (vd->vdev_path) 3492 (void) fprintf(stderr, "Found vdev: %s\n", 3493 vd->vdev_path); 3494 else 3495 (void) fprintf(stderr, "Found vdev type: %s\n", 3496 vd->vdev_ops->vdev_op_type); 3497 } 3498 3499 psize = size; 3500 lsize = size; 3501 3502 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3503 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3504 3505 BP_ZERO(bp); 3506 3507 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3508 DVA_SET_OFFSET(&dva[0], offset); 3509 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3510 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3511 3512 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3513 3514 BP_SET_LSIZE(bp, lsize); 3515 BP_SET_PSIZE(bp, psize); 3516 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3517 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3518 BP_SET_TYPE(bp, DMU_OT_NONE); 3519 BP_SET_LEVEL(bp, 0); 3520 BP_SET_DEDUP(bp, 0); 3521 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3522 3523 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3524 zio = zio_root(spa, NULL, NULL, 0); 3525 3526 if (vd == vd->vdev_top) { 3527 /* 3528 * Treat this as a normal block read. 3529 */ 3530 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3531 ZIO_PRIORITY_SYNC_READ, 3532 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3533 } else { 3534 /* 3535 * Treat this as a vdev child I/O. 3536 */ 3537 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3538 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3539 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3540 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3541 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3542 } 3543 3544 error = zio_wait(zio); 3545 spa_config_exit(spa, SCL_STATE, FTAG); 3546 3547 if (error) { 3548 (void) printf("Read of %s failed, error: %d\n", thing, error); 3549 goto out; 3550 } 3551 3552 if (flags & ZDB_FLAG_DECOMPRESS) { 3553 /* 3554 * We don't know how the data was compressed, so just try 3555 * every decompress function at every inflated blocksize. 3556 */ 3557 enum zio_compress c; 3558 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3559 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3560 3561 bcopy(pbuf, pbuf2, psize); 3562 3563 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3564 SPA_MAXBLOCKSIZE - psize) == 0); 3565 3566 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3567 SPA_MAXBLOCKSIZE - psize) == 0); 3568 3569 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3570 lsize -= SPA_MINBLOCKSIZE) { 3571 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3572 if (zio_decompress_data(c, pbuf, lbuf, 3573 psize, lsize) == 0 && 3574 zio_decompress_data(c, pbuf2, lbuf2, 3575 psize, lsize) == 0 && 3576 bcmp(lbuf, lbuf2, lsize) == 0) 3577 break; 3578 } 3579 if (c != ZIO_COMPRESS_FUNCTIONS) 3580 break; 3581 lsize -= SPA_MINBLOCKSIZE; 3582 } 3583 3584 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3585 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3586 3587 if (lsize <= psize) { 3588 (void) printf("Decompress of %s failed\n", thing); 3589 goto out; 3590 } 3591 buf = lbuf; 3592 size = lsize; 3593 } else { 3594 buf = pbuf; 3595 size = psize; 3596 } 3597 3598 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3599 zdb_print_blkptr((blkptr_t *)(void *) 3600 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3601 else if (flags & ZDB_FLAG_RAW) 3602 zdb_dump_block_raw(buf, size, flags); 3603 else if (flags & ZDB_FLAG_INDIRECT) 3604 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3605 flags); 3606 else if (flags & ZDB_FLAG_GBH) 3607 zdb_dump_gbh(buf, flags); 3608 else 3609 zdb_dump_block(thing, buf, size, flags); 3610 3611 out: 3612 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3613 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3614 free(dup); 3615 } 3616 3617 static boolean_t 3618 pool_match(nvlist_t *cfg, char *tgt) 3619 { 3620 uint64_t v, guid = strtoull(tgt, NULL, 0); 3621 char *s; 3622 3623 if (guid != 0) { 3624 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3625 return (v == guid); 3626 } else { 3627 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3628 return (strcmp(s, tgt) == 0); 3629 } 3630 return (B_FALSE); 3631 } 3632 3633 static char * 3634 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3635 { 3636 nvlist_t *pools; 3637 nvlist_t *match = NULL; 3638 char *name = NULL; 3639 char *sepp = NULL; 3640 char sep = '\0'; 3641 int count = 0; 3642 importargs_t args = { 0 }; 3643 3644 args.paths = dirc; 3645 args.path = dirv; 3646 args.can_be_active = B_TRUE; 3647 3648 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3649 sep = *sepp; 3650 *sepp = '\0'; 3651 } 3652 3653 pools = zpool_search_import(g_zfs, &args); 3654 3655 if (pools != NULL) { 3656 nvpair_t *elem = NULL; 3657 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3658 verify(nvpair_value_nvlist(elem, configp) == 0); 3659 if (pool_match(*configp, *target)) { 3660 count++; 3661 if (match != NULL) { 3662 /* print previously found config */ 3663 if (name != NULL) { 3664 (void) printf("%s\n", name); 3665 dump_nvlist(match, 8); 3666 name = NULL; 3667 } 3668 (void) printf("%s\n", 3669 nvpair_name(elem)); 3670 dump_nvlist(*configp, 8); 3671 } else { 3672 match = *configp; 3673 name = nvpair_name(elem); 3674 } 3675 } 3676 } 3677 } 3678 if (count > 1) 3679 (void) fatal("\tMatched %d pools - use pool GUID " 3680 "instead of pool name or \n" 3681 "\tpool name part of a dataset name to select pool", count); 3682 3683 if (sepp) 3684 *sepp = sep; 3685 /* 3686 * If pool GUID was specified for pool id, replace it with pool name 3687 */ 3688 if (name && (strstr(*target, name) != *target)) { 3689 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3690 3691 *target = umem_alloc(sz, UMEM_NOFAIL); 3692 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3693 } 3694 3695 *configp = name ? match : NULL; 3696 3697 return (name); 3698 } 3699 3700 int 3701 main(int argc, char **argv) 3702 { 3703 int i, c; 3704 struct rlimit rl = { 1024, 1024 }; 3705 spa_t *spa = NULL; 3706 objset_t *os = NULL; 3707 int dump_all = 1; 3708 int verbose = 0; 3709 int error = 0; 3710 char **searchdirs = NULL; 3711 int nsearch = 0; 3712 char *target; 3713 nvlist_t *policy = NULL; 3714 uint64_t max_txg = UINT64_MAX; 3715 int flags = ZFS_IMPORT_MISSING_LOG; 3716 int rewind = ZPOOL_NEVER_REWIND; 3717 char *spa_config_path_env; 3718 boolean_t target_is_spa = B_TRUE; 3719 3720 (void) setrlimit(RLIMIT_NOFILE, &rl); 3721 (void) enable_extended_FILE_stdio(-1, -1); 3722 3723 dprintf_setup(&argc, argv); 3724 3725 /* 3726 * If there is an environment variable SPA_CONFIG_PATH it overrides 3727 * default spa_config_path setting. If -U flag is specified it will 3728 * override this environment variable settings once again. 3729 */ 3730 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 3731 if (spa_config_path_env != NULL) 3732 spa_config_path = spa_config_path_env; 3733 3734 while ((c = getopt(argc, argv, 3735 "AbcCdDeFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) { 3736 switch (c) { 3737 case 'b': 3738 case 'c': 3739 case 'C': 3740 case 'd': 3741 case 'D': 3742 case 'G': 3743 case 'h': 3744 case 'i': 3745 case 'l': 3746 case 'm': 3747 case 'M': 3748 case 'O': 3749 case 'R': 3750 case 's': 3751 case 'S': 3752 case 'u': 3753 dump_opt[c]++; 3754 dump_all = 0; 3755 break; 3756 case 'A': 3757 case 'e': 3758 case 'F': 3759 case 'L': 3760 case 'P': 3761 case 'q': 3762 case 'X': 3763 dump_opt[c]++; 3764 break; 3765 /* NB: Sort single match options below. */ 3766 case 'I': 3767 max_inflight = strtoull(optarg, NULL, 0); 3768 if (max_inflight == 0) { 3769 (void) fprintf(stderr, "maximum number " 3770 "of inflight I/Os must be greater " 3771 "than 0\n"); 3772 usage(); 3773 } 3774 break; 3775 case 'o': 3776 error = set_global_var(optarg); 3777 if (error != 0) 3778 usage(); 3779 break; 3780 case 'p': 3781 if (searchdirs == NULL) { 3782 searchdirs = umem_alloc(sizeof (char *), 3783 UMEM_NOFAIL); 3784 } else { 3785 char **tmp = umem_alloc((nsearch + 1) * 3786 sizeof (char *), UMEM_NOFAIL); 3787 bcopy(searchdirs, tmp, nsearch * 3788 sizeof (char *)); 3789 umem_free(searchdirs, 3790 nsearch * sizeof (char *)); 3791 searchdirs = tmp; 3792 } 3793 searchdirs[nsearch++] = optarg; 3794 break; 3795 case 't': 3796 max_txg = strtoull(optarg, NULL, 0); 3797 if (max_txg < TXG_INITIAL) { 3798 (void) fprintf(stderr, "incorrect txg " 3799 "specified: %s\n", optarg); 3800 usage(); 3801 } 3802 break; 3803 case 'U': 3804 spa_config_path = optarg; 3805 break; 3806 case 'v': 3807 verbose++; 3808 break; 3809 case 'V': 3810 flags = ZFS_IMPORT_VERBATIM; 3811 break; 3812 case 'x': 3813 vn_dumpdir = optarg; 3814 break; 3815 default: 3816 usage(); 3817 break; 3818 } 3819 } 3820 3821 if (!dump_opt['e'] && searchdirs != NULL) { 3822 (void) fprintf(stderr, "-p option requires use of -e\n"); 3823 usage(); 3824 } 3825 3826 /* 3827 * ZDB does not typically re-read blocks; therefore limit the ARC 3828 * to 256 MB, which can be used entirely for metadata. 3829 */ 3830 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 3831 3832 /* 3833 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 3834 * "zdb -b" uses traversal prefetch which uses async reads. 3835 * For good performance, let several of them be active at once. 3836 */ 3837 zfs_vdev_async_read_max_active = 10; 3838 3839 /* 3840 * Disable reference tracking for better performance. 3841 */ 3842 reference_tracking_enable = B_FALSE; 3843 3844 kernel_init(FREAD); 3845 g_zfs = libzfs_init(); 3846 ASSERT(g_zfs != NULL); 3847 3848 if (dump_all) 3849 verbose = MAX(verbose, 1); 3850 3851 for (c = 0; c < 256; c++) { 3852 if (dump_all && strchr("AeFlLOPRSX", c) == NULL) 3853 dump_opt[c] = 1; 3854 if (dump_opt[c]) 3855 dump_opt[c] += verbose; 3856 } 3857 3858 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3859 zfs_recover = (dump_opt['A'] > 1); 3860 3861 argc -= optind; 3862 argv += optind; 3863 3864 if (argc < 2 && dump_opt['R']) 3865 usage(); 3866 if (argc < 1) { 3867 if (!dump_opt['e'] && dump_opt['C']) { 3868 dump_cachefile(spa_config_path); 3869 return (0); 3870 } 3871 usage(); 3872 } 3873 3874 if (dump_opt['l']) 3875 return (dump_label(argv[0])); 3876 3877 if (dump_opt['O']) { 3878 if (argc != 2) 3879 usage(); 3880 dump_opt['v'] = verbose + 3; 3881 return (dump_path(argv[0], argv[1])); 3882 } 3883 3884 if (dump_opt['X'] || dump_opt['F']) 3885 rewind = ZPOOL_DO_REWIND | 3886 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3887 3888 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3889 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3890 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3891 fatal("internal error: %s", strerror(ENOMEM)); 3892 3893 error = 0; 3894 target = argv[0]; 3895 3896 if (dump_opt['e']) { 3897 nvlist_t *cfg = NULL; 3898 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3899 3900 error = ENOENT; 3901 if (name) { 3902 if (dump_opt['C'] > 1) { 3903 (void) printf("\nConfiguration for import:\n"); 3904 dump_nvlist(cfg, 8); 3905 } 3906 if (nvlist_add_nvlist(cfg, 3907 ZPOOL_REWIND_POLICY, policy) != 0) { 3908 fatal("can't open '%s': %s", 3909 target, strerror(ENOMEM)); 3910 } 3911 error = spa_import(name, cfg, NULL, flags); 3912 } 3913 } 3914 3915 if (strpbrk(target, "/@") != NULL) { 3916 size_t targetlen; 3917 3918 target_is_spa = B_FALSE; 3919 /* 3920 * Remove any trailing slash. Later code would get confused 3921 * by it, but we want to allow it so that "pool/" can 3922 * indicate that we want to dump the topmost filesystem, 3923 * rather than the whole pool. 3924 */ 3925 targetlen = strlen(target); 3926 if (targetlen != 0 && target[targetlen - 1] == '/') 3927 target[targetlen - 1] = '\0'; 3928 } 3929 3930 if (error == 0) { 3931 if (target_is_spa || dump_opt['R']) { 3932 error = spa_open_rewind(target, &spa, FTAG, policy, 3933 NULL); 3934 if (error) { 3935 /* 3936 * If we're missing the log device then 3937 * try opening the pool after clearing the 3938 * log state. 3939 */ 3940 mutex_enter(&spa_namespace_lock); 3941 if ((spa = spa_lookup(target)) != NULL && 3942 spa->spa_log_state == SPA_LOG_MISSING) { 3943 spa->spa_log_state = SPA_LOG_CLEAR; 3944 error = 0; 3945 } 3946 mutex_exit(&spa_namespace_lock); 3947 3948 if (!error) { 3949 error = spa_open_rewind(target, &spa, 3950 FTAG, policy, NULL); 3951 } 3952 } 3953 } else { 3954 error = open_objset(target, DMU_OST_ANY, FTAG, &os); 3955 } 3956 } 3957 nvlist_free(policy); 3958 3959 if (error) 3960 fatal("can't open '%s': %s", target, strerror(error)); 3961 3962 argv++; 3963 argc--; 3964 if (!dump_opt['R']) { 3965 if (argc > 0) { 3966 zopt_objects = argc; 3967 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3968 for (i = 0; i < zopt_objects; i++) { 3969 errno = 0; 3970 zopt_object[i] = strtoull(argv[i], NULL, 0); 3971 if (zopt_object[i] == 0 && errno != 0) 3972 fatal("bad number %s: %s", 3973 argv[i], strerror(errno)); 3974 } 3975 } 3976 if (os != NULL) { 3977 dump_dir(os); 3978 } else if (zopt_objects > 0 && !dump_opt['m']) { 3979 dump_dir(spa->spa_meta_objset); 3980 } else { 3981 dump_zpool(spa); 3982 } 3983 } else { 3984 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3985 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3986 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3987 flagbits['e'] = ZDB_FLAG_BSWAP; 3988 flagbits['g'] = ZDB_FLAG_GBH; 3989 flagbits['i'] = ZDB_FLAG_INDIRECT; 3990 flagbits['p'] = ZDB_FLAG_PHYS; 3991 flagbits['r'] = ZDB_FLAG_RAW; 3992 3993 for (i = 0; i < argc; i++) 3994 zdb_read_block(argv[i], spa); 3995 } 3996 3997 if (os != NULL) 3998 close_objset(os, FTAG); 3999 else 4000 spa_close(spa, FTAG); 4001 4002 fuid_table_destroy(); 4003 4004 dump_debug_buffer(); 4005 4006 libzfs_fini(g_zfs); 4007 kernel_fini(); 4008 4009 return (0); 4010 } 4011