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 <sys/abd.h> 64 #include <sys/blkptr.h> 65 #include <zfs_comutil.h> 66 #undef verify 67 #include <libzfs.h> 68 69 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 70 zio_compress_table[(idx)].ci_name : "UNKNOWN") 71 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 72 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 73 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 74 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 75 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 76 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 77 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 78 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 79 80 #ifndef lint 81 extern int reference_tracking_enable; 82 extern boolean_t zfs_recover; 83 extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 84 extern int zfs_vdev_async_read_max_active; 85 #else 86 int reference_tracking_enable; 87 boolean_t zfs_recover; 88 uint64_t zfs_arc_max, zfs_arc_meta_limit; 89 int zfs_vdev_async_read_max_active; 90 #endif 91 92 const char cmdname[] = "zdb"; 93 uint8_t dump_opt[256]; 94 95 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 96 97 extern void dump_intent_log(zilog_t *); 98 uint64_t *zopt_object = NULL; 99 int zopt_objects = 0; 100 libzfs_handle_t *g_zfs; 101 uint64_t max_inflight = 1000; 102 103 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 104 105 /* 106 * These libumem hooks provide a reasonable set of defaults for the allocator's 107 * debugging facilities. 108 */ 109 const char * 110 _umem_debug_init() 111 { 112 return ("default,verbose"); /* $UMEM_DEBUG setting */ 113 } 114 115 const char * 116 _umem_logging_init(void) 117 { 118 return ("fail,contents"); /* $UMEM_LOGGING setting */ 119 } 120 121 static void 122 usage(void) 123 { 124 (void) fprintf(stderr, 125 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] " 126 "[-I <inflight I/Os>]\n" 127 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" 128 "\t\t[<poolname> [<object> ...]]\n" 129 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> " 130 "[<object> ...]\n" 131 "\t%s -C [-A] [-U <cache>]\n" 132 "\t%s -l [-Aqu] <device>\n" 133 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] " 134 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n" 135 "\t%s -O <dataset> <path>\n" 136 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n" 137 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n" 138 "\t%s -E [-A] word0:word1:...:word15\n" 139 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] " 140 "<poolname>\n\n", 141 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, 142 cmdname, cmdname); 143 144 (void) fprintf(stderr, " Dataset name must include at least one " 145 "separator character '/' or '@'\n"); 146 (void) fprintf(stderr, " If dataset name is specified, only that " 147 "dataset is dumped\n"); 148 (void) fprintf(stderr, " If object numbers are specified, only " 149 "those objects are dumped\n\n"); 150 (void) fprintf(stderr, " Options to control amount of output:\n"); 151 (void) fprintf(stderr, " -b block statistics\n"); 152 (void) fprintf(stderr, " -c checksum all metadata (twice for " 153 "all data) blocks\n"); 154 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 155 (void) fprintf(stderr, " -d dataset(s)\n"); 156 (void) fprintf(stderr, " -D dedup statistics\n"); 157 (void) fprintf(stderr, " -E decode and display block from an " 158 "embedded block pointer\n"); 159 (void) fprintf(stderr, " -h pool history\n"); 160 (void) fprintf(stderr, " -i intent logs\n"); 161 (void) fprintf(stderr, " -l read label contents\n"); 162 (void) fprintf(stderr, " -L disable leak tracking (do not " 163 "load spacemaps)\n"); 164 (void) fprintf(stderr, " -m metaslabs\n"); 165 (void) fprintf(stderr, " -M metaslab groups\n"); 166 (void) fprintf(stderr, " -O perform object lookups by path\n"); 167 (void) fprintf(stderr, " -R read and display block from a " 168 "device\n"); 169 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 170 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 171 (void) fprintf(stderr, " -v verbose (applies to all " 172 "others)\n\n"); 173 (void) fprintf(stderr, " Below options are intended for use " 174 "with other options:\n"); 175 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 176 "panic recovery (-AA) or both (-AAA)\n"); 177 (void) fprintf(stderr, " -e pool is exported/destroyed/" 178 "has altroot/not in a cachefile\n"); 179 (void) fprintf(stderr, " -F attempt automatic rewind within " 180 "safe range of transaction groups\n"); 181 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " 182 "exiting\n"); 183 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 184 "specify the maximum number of " 185 "checksumming I/Os [default is 200]\n"); 186 (void) fprintf(stderr, " -o <variable>=<value> set global " 187 "variable to an unsigned 32-bit integer value\n"); 188 (void) fprintf(stderr, " -p <path> -- use one or more with " 189 "-e to specify path to vdev dir\n"); 190 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 191 (void) fprintf(stderr, " -q don't print label contents\n"); 192 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 193 "searching for uberblocks\n"); 194 (void) fprintf(stderr, " -u uberblock\n"); 195 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 196 "cachefile\n"); 197 (void) fprintf(stderr, " -V do verbatim import\n"); 198 (void) fprintf(stderr, " -x <dumpdir> -- " 199 "dump all read blocks into specified directory\n"); 200 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 201 "work with dataset)\n\n"); 202 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 203 "to make only that option verbose\n"); 204 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 205 exit(1); 206 } 207 208 static void 209 dump_debug_buffer() 210 { 211 if (dump_opt['G']) { 212 (void) printf("\n"); 213 zfs_dbgmsg_print("zdb"); 214 } 215 } 216 217 /* 218 * Called for usage errors that are discovered after a call to spa_open(), 219 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 220 */ 221 222 static void 223 fatal(const char *fmt, ...) 224 { 225 va_list ap; 226 227 va_start(ap, fmt); 228 (void) fprintf(stderr, "%s: ", cmdname); 229 (void) vfprintf(stderr, fmt, ap); 230 va_end(ap); 231 (void) fprintf(stderr, "\n"); 232 233 dump_debug_buffer(); 234 235 exit(1); 236 } 237 238 /* ARGSUSED */ 239 static void 240 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 241 { 242 nvlist_t *nv; 243 size_t nvsize = *(uint64_t *)data; 244 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 245 246 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 247 248 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 249 250 umem_free(packed, nvsize); 251 252 dump_nvlist(nv, 8); 253 254 nvlist_free(nv); 255 } 256 257 /* ARGSUSED */ 258 static void 259 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 260 { 261 spa_history_phys_t *shp = data; 262 263 if (shp == NULL) 264 return; 265 266 (void) printf("\t\tpool_create_len = %llu\n", 267 (u_longlong_t)shp->sh_pool_create_len); 268 (void) printf("\t\tphys_max_off = %llu\n", 269 (u_longlong_t)shp->sh_phys_max_off); 270 (void) printf("\t\tbof = %llu\n", 271 (u_longlong_t)shp->sh_bof); 272 (void) printf("\t\teof = %llu\n", 273 (u_longlong_t)shp->sh_eof); 274 (void) printf("\t\trecords_lost = %llu\n", 275 (u_longlong_t)shp->sh_records_lost); 276 } 277 278 static void 279 zdb_nicenum(uint64_t num, char *buf) 280 { 281 if (dump_opt['P']) 282 (void) sprintf(buf, "%llu", (longlong_t)num); 283 else 284 nicenum(num, buf); 285 } 286 287 const char histo_stars[] = "****************************************"; 288 const int histo_width = sizeof (histo_stars) - 1; 289 290 static void 291 dump_histogram(const uint64_t *histo, int size, int offset) 292 { 293 int i; 294 int minidx = size - 1; 295 int maxidx = 0; 296 uint64_t max = 0; 297 298 for (i = 0; i < size; i++) { 299 if (histo[i] > max) 300 max = histo[i]; 301 if (histo[i] > 0 && i > maxidx) 302 maxidx = i; 303 if (histo[i] > 0 && i < minidx) 304 minidx = i; 305 } 306 307 if (max < histo_width) 308 max = histo_width; 309 310 for (i = minidx; i <= maxidx; i++) { 311 (void) printf("\t\t\t%3u: %6llu %s\n", 312 i + offset, (u_longlong_t)histo[i], 313 &histo_stars[(max - histo[i]) * histo_width / max]); 314 } 315 } 316 317 static void 318 dump_zap_stats(objset_t *os, uint64_t object) 319 { 320 int error; 321 zap_stats_t zs; 322 323 error = zap_get_stats(os, object, &zs); 324 if (error) 325 return; 326 327 if (zs.zs_ptrtbl_len == 0) { 328 ASSERT(zs.zs_num_blocks == 1); 329 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 330 (u_longlong_t)zs.zs_blocksize, 331 (u_longlong_t)zs.zs_num_entries); 332 return; 333 } 334 335 (void) printf("\tFat ZAP stats:\n"); 336 337 (void) printf("\t\tPointer table:\n"); 338 (void) printf("\t\t\t%llu elements\n", 339 (u_longlong_t)zs.zs_ptrtbl_len); 340 (void) printf("\t\t\tzt_blk: %llu\n", 341 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 342 (void) printf("\t\t\tzt_numblks: %llu\n", 343 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 344 (void) printf("\t\t\tzt_shift: %llu\n", 345 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 346 (void) printf("\t\t\tzt_blks_copied: %llu\n", 347 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 348 (void) printf("\t\t\tzt_nextblk: %llu\n", 349 (u_longlong_t)zs.zs_ptrtbl_nextblk); 350 351 (void) printf("\t\tZAP entries: %llu\n", 352 (u_longlong_t)zs.zs_num_entries); 353 (void) printf("\t\tLeaf blocks: %llu\n", 354 (u_longlong_t)zs.zs_num_leafs); 355 (void) printf("\t\tTotal blocks: %llu\n", 356 (u_longlong_t)zs.zs_num_blocks); 357 (void) printf("\t\tzap_block_type: 0x%llx\n", 358 (u_longlong_t)zs.zs_block_type); 359 (void) printf("\t\tzap_magic: 0x%llx\n", 360 (u_longlong_t)zs.zs_magic); 361 (void) printf("\t\tzap_salt: 0x%llx\n", 362 (u_longlong_t)zs.zs_salt); 363 364 (void) printf("\t\tLeafs with 2^n pointers:\n"); 365 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 366 367 (void) printf("\t\tBlocks with n*5 entries:\n"); 368 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 369 370 (void) printf("\t\tBlocks n/10 full:\n"); 371 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 372 373 (void) printf("\t\tEntries with n chunks:\n"); 374 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 375 376 (void) printf("\t\tBuckets with n entries:\n"); 377 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 378 } 379 380 /*ARGSUSED*/ 381 static void 382 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 383 { 384 } 385 386 /*ARGSUSED*/ 387 static void 388 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 389 { 390 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 391 } 392 393 /*ARGSUSED*/ 394 void 395 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 396 { 397 } 398 399 /*ARGSUSED*/ 400 static void 401 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 402 { 403 } 404 405 /*ARGSUSED*/ 406 static void 407 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 408 { 409 zap_cursor_t zc; 410 zap_attribute_t attr; 411 void *prop; 412 int i; 413 414 dump_zap_stats(os, object); 415 (void) printf("\n"); 416 417 for (zap_cursor_init(&zc, os, object); 418 zap_cursor_retrieve(&zc, &attr) == 0; 419 zap_cursor_advance(&zc)) { 420 (void) printf("\t\t%s = ", attr.za_name); 421 if (attr.za_num_integers == 0) { 422 (void) printf("\n"); 423 continue; 424 } 425 prop = umem_zalloc(attr.za_num_integers * 426 attr.za_integer_length, UMEM_NOFAIL); 427 (void) zap_lookup(os, object, attr.za_name, 428 attr.za_integer_length, attr.za_num_integers, prop); 429 if (attr.za_integer_length == 1) { 430 (void) printf("%s", (char *)prop); 431 } else { 432 for (i = 0; i < attr.za_num_integers; i++) { 433 switch (attr.za_integer_length) { 434 case 2: 435 (void) printf("%u ", 436 ((uint16_t *)prop)[i]); 437 break; 438 case 4: 439 (void) printf("%u ", 440 ((uint32_t *)prop)[i]); 441 break; 442 case 8: 443 (void) printf("%lld ", 444 (u_longlong_t)((int64_t *)prop)[i]); 445 break; 446 } 447 } 448 } 449 (void) printf("\n"); 450 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 451 } 452 zap_cursor_fini(&zc); 453 } 454 455 static void 456 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 457 { 458 bpobj_phys_t *bpop = data; 459 char bytes[32], comp[32], uncomp[32]; 460 461 if (bpop == NULL) 462 return; 463 464 zdb_nicenum(bpop->bpo_bytes, bytes); 465 zdb_nicenum(bpop->bpo_comp, comp); 466 zdb_nicenum(bpop->bpo_uncomp, uncomp); 467 468 (void) printf("\t\tnum_blkptrs = %llu\n", 469 (u_longlong_t)bpop->bpo_num_blkptrs); 470 (void) printf("\t\tbytes = %s\n", bytes); 471 if (size >= BPOBJ_SIZE_V1) { 472 (void) printf("\t\tcomp = %s\n", comp); 473 (void) printf("\t\tuncomp = %s\n", uncomp); 474 } 475 if (size >= sizeof (*bpop)) { 476 (void) printf("\t\tsubobjs = %llu\n", 477 (u_longlong_t)bpop->bpo_subobjs); 478 (void) printf("\t\tnum_subobjs = %llu\n", 479 (u_longlong_t)bpop->bpo_num_subobjs); 480 } 481 482 if (dump_opt['d'] < 5) 483 return; 484 485 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 486 char blkbuf[BP_SPRINTF_LEN]; 487 blkptr_t bp; 488 489 int err = dmu_read(os, object, 490 i * sizeof (bp), sizeof (bp), &bp, 0); 491 if (err != 0) { 492 (void) printf("got error %u from dmu_read\n", err); 493 break; 494 } 495 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 496 (void) printf("\t%s\n", blkbuf); 497 } 498 } 499 500 /* ARGSUSED */ 501 static void 502 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 503 { 504 dmu_object_info_t doi; 505 506 VERIFY0(dmu_object_info(os, object, &doi)); 507 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 508 509 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 510 if (err != 0) { 511 (void) printf("got error %u from dmu_read\n", err); 512 kmem_free(subobjs, doi.doi_max_offset); 513 return; 514 } 515 516 int64_t last_nonzero = -1; 517 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 518 if (subobjs[i] != 0) 519 last_nonzero = i; 520 } 521 522 for (int64_t i = 0; i <= last_nonzero; i++) { 523 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 524 } 525 kmem_free(subobjs, doi.doi_max_offset); 526 } 527 528 /*ARGSUSED*/ 529 static void 530 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 531 { 532 dump_zap_stats(os, object); 533 /* contents are printed elsewhere, properly decoded */ 534 } 535 536 /*ARGSUSED*/ 537 static void 538 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 539 { 540 zap_cursor_t zc; 541 zap_attribute_t attr; 542 543 dump_zap_stats(os, object); 544 (void) printf("\n"); 545 546 for (zap_cursor_init(&zc, os, object); 547 zap_cursor_retrieve(&zc, &attr) == 0; 548 zap_cursor_advance(&zc)) { 549 (void) printf("\t\t%s = ", attr.za_name); 550 if (attr.za_num_integers == 0) { 551 (void) printf("\n"); 552 continue; 553 } 554 (void) printf(" %llx : [%d:%d:%d]\n", 555 (u_longlong_t)attr.za_first_integer, 556 (int)ATTR_LENGTH(attr.za_first_integer), 557 (int)ATTR_BSWAP(attr.za_first_integer), 558 (int)ATTR_NUM(attr.za_first_integer)); 559 } 560 zap_cursor_fini(&zc); 561 } 562 563 /*ARGSUSED*/ 564 static void 565 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 566 { 567 zap_cursor_t zc; 568 zap_attribute_t attr; 569 uint16_t *layout_attrs; 570 int i; 571 572 dump_zap_stats(os, object); 573 (void) printf("\n"); 574 575 for (zap_cursor_init(&zc, os, object); 576 zap_cursor_retrieve(&zc, &attr) == 0; 577 zap_cursor_advance(&zc)) { 578 (void) printf("\t\t%s = [", attr.za_name); 579 if (attr.za_num_integers == 0) { 580 (void) printf("\n"); 581 continue; 582 } 583 584 VERIFY(attr.za_integer_length == 2); 585 layout_attrs = umem_zalloc(attr.za_num_integers * 586 attr.za_integer_length, UMEM_NOFAIL); 587 588 VERIFY(zap_lookup(os, object, attr.za_name, 589 attr.za_integer_length, 590 attr.za_num_integers, layout_attrs) == 0); 591 592 for (i = 0; i != attr.za_num_integers; i++) 593 (void) printf(" %d ", (int)layout_attrs[i]); 594 (void) printf("]\n"); 595 umem_free(layout_attrs, 596 attr.za_num_integers * attr.za_integer_length); 597 } 598 zap_cursor_fini(&zc); 599 } 600 601 /*ARGSUSED*/ 602 static void 603 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 604 { 605 zap_cursor_t zc; 606 zap_attribute_t attr; 607 const char *typenames[] = { 608 /* 0 */ "not specified", 609 /* 1 */ "FIFO", 610 /* 2 */ "Character Device", 611 /* 3 */ "3 (invalid)", 612 /* 4 */ "Directory", 613 /* 5 */ "5 (invalid)", 614 /* 6 */ "Block Device", 615 /* 7 */ "7 (invalid)", 616 /* 8 */ "Regular File", 617 /* 9 */ "9 (invalid)", 618 /* 10 */ "Symbolic Link", 619 /* 11 */ "11 (invalid)", 620 /* 12 */ "Socket", 621 /* 13 */ "Door", 622 /* 14 */ "Event Port", 623 /* 15 */ "15 (invalid)", 624 }; 625 626 dump_zap_stats(os, object); 627 (void) printf("\n"); 628 629 for (zap_cursor_init(&zc, os, object); 630 zap_cursor_retrieve(&zc, &attr) == 0; 631 zap_cursor_advance(&zc)) { 632 (void) printf("\t\t%s = %lld (type: %s)\n", 633 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 634 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 635 } 636 zap_cursor_fini(&zc); 637 } 638 639 int 640 get_dtl_refcount(vdev_t *vd) 641 { 642 int refcount = 0; 643 644 if (vd->vdev_ops->vdev_op_leaf) { 645 space_map_t *sm = vd->vdev_dtl_sm; 646 647 if (sm != NULL && 648 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 649 return (1); 650 return (0); 651 } 652 653 for (int c = 0; c < vd->vdev_children; c++) 654 refcount += get_dtl_refcount(vd->vdev_child[c]); 655 return (refcount); 656 } 657 658 int 659 get_metaslab_refcount(vdev_t *vd) 660 { 661 int refcount = 0; 662 663 if (vd->vdev_top == vd && !vd->vdev_removing) { 664 for (int m = 0; m < vd->vdev_ms_count; m++) { 665 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 666 667 if (sm != NULL && 668 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 669 refcount++; 670 } 671 } 672 for (int c = 0; c < vd->vdev_children; c++) 673 refcount += get_metaslab_refcount(vd->vdev_child[c]); 674 675 return (refcount); 676 } 677 678 static int 679 verify_spacemap_refcounts(spa_t *spa) 680 { 681 uint64_t expected_refcount = 0; 682 uint64_t actual_refcount; 683 684 (void) feature_get_refcount(spa, 685 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 686 &expected_refcount); 687 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 688 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 689 690 if (expected_refcount != actual_refcount) { 691 (void) printf("space map refcount mismatch: expected %lld != " 692 "actual %lld\n", 693 (longlong_t)expected_refcount, 694 (longlong_t)actual_refcount); 695 return (2); 696 } 697 return (0); 698 } 699 700 static void 701 dump_spacemap(objset_t *os, space_map_t *sm) 702 { 703 uint64_t alloc, offset, entry; 704 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 705 "INVALID", "INVALID", "INVALID", "INVALID" }; 706 707 if (sm == NULL) 708 return; 709 710 /* 711 * Print out the freelist entries in both encoded and decoded form. 712 */ 713 alloc = 0; 714 for (offset = 0; offset < space_map_length(sm); 715 offset += sizeof (entry)) { 716 uint8_t mapshift = sm->sm_shift; 717 718 VERIFY0(dmu_read(os, space_map_object(sm), offset, 719 sizeof (entry), &entry, DMU_READ_PREFETCH)); 720 if (SM_DEBUG_DECODE(entry)) { 721 722 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 723 (u_longlong_t)(offset / sizeof (entry)), 724 ddata[SM_DEBUG_ACTION_DECODE(entry)], 725 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 726 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 727 } else { 728 (void) printf("\t [%6llu] %c range:" 729 " %010llx-%010llx size: %06llx\n", 730 (u_longlong_t)(offset / sizeof (entry)), 731 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 732 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 733 mapshift) + sm->sm_start), 734 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 735 mapshift) + sm->sm_start + 736 (SM_RUN_DECODE(entry) << mapshift)), 737 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 738 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 739 alloc += SM_RUN_DECODE(entry) << mapshift; 740 else 741 alloc -= SM_RUN_DECODE(entry) << mapshift; 742 } 743 } 744 if (alloc != space_map_allocated(sm)) { 745 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 746 "with space map summary (%llu)\n", 747 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 748 } 749 } 750 751 static void 752 dump_metaslab_stats(metaslab_t *msp) 753 { 754 char maxbuf[32]; 755 range_tree_t *rt = msp->ms_tree; 756 avl_tree_t *t = &msp->ms_size_tree; 757 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 758 759 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 760 761 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 762 "segments", avl_numnodes(t), "maxsize", maxbuf, 763 "freepct", free_pct); 764 (void) printf("\tIn-memory histogram:\n"); 765 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 766 } 767 768 static void 769 dump_metaslab(metaslab_t *msp) 770 { 771 vdev_t *vd = msp->ms_group->mg_vd; 772 spa_t *spa = vd->vdev_spa; 773 space_map_t *sm = msp->ms_sm; 774 char freebuf[32]; 775 776 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 777 778 (void) printf( 779 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 780 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 781 (u_longlong_t)space_map_object(sm), freebuf); 782 783 if (dump_opt['m'] > 2 && !dump_opt['L']) { 784 mutex_enter(&msp->ms_lock); 785 metaslab_load_wait(msp); 786 if (!msp->ms_loaded) { 787 VERIFY0(metaslab_load(msp)); 788 range_tree_stat_verify(msp->ms_tree); 789 } 790 dump_metaslab_stats(msp); 791 metaslab_unload(msp); 792 mutex_exit(&msp->ms_lock); 793 } 794 795 if (dump_opt['m'] > 1 && sm != NULL && 796 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 797 /* 798 * The space map histogram represents free space in chunks 799 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 800 */ 801 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 802 (u_longlong_t)msp->ms_fragmentation); 803 dump_histogram(sm->sm_phys->smp_histogram, 804 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 805 } 806 807 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 808 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 809 810 mutex_enter(&msp->ms_lock); 811 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 812 mutex_exit(&msp->ms_lock); 813 } 814 } 815 816 static void 817 print_vdev_metaslab_header(vdev_t *vd) 818 { 819 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 820 (u_longlong_t)vd->vdev_id, 821 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 822 "offset", "spacemap", "free"); 823 (void) printf("\t%15s %19s %15s %10s\n", 824 "---------------", "-------------------", 825 "---------------", "-------------"); 826 } 827 828 static void 829 dump_metaslab_groups(spa_t *spa) 830 { 831 vdev_t *rvd = spa->spa_root_vdev; 832 metaslab_class_t *mc = spa_normal_class(spa); 833 uint64_t fragmentation; 834 835 metaslab_class_histogram_verify(mc); 836 837 for (int c = 0; c < rvd->vdev_children; c++) { 838 vdev_t *tvd = rvd->vdev_child[c]; 839 metaslab_group_t *mg = tvd->vdev_mg; 840 841 if (mg->mg_class != mc) 842 continue; 843 844 metaslab_group_histogram_verify(mg); 845 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 846 847 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 848 "fragmentation", 849 (u_longlong_t)tvd->vdev_id, 850 (u_longlong_t)tvd->vdev_ms_count); 851 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 852 (void) printf("%3s\n", "-"); 853 } else { 854 (void) printf("%3llu%%\n", 855 (u_longlong_t)mg->mg_fragmentation); 856 } 857 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 858 } 859 860 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 861 fragmentation = metaslab_class_fragmentation(mc); 862 if (fragmentation == ZFS_FRAG_INVALID) 863 (void) printf("\t%3s\n", "-"); 864 else 865 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 866 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 867 } 868 869 static void 870 dump_metaslabs(spa_t *spa) 871 { 872 vdev_t *vd, *rvd = spa->spa_root_vdev; 873 uint64_t m, c = 0, children = rvd->vdev_children; 874 875 (void) printf("\nMetaslabs:\n"); 876 877 if (!dump_opt['d'] && zopt_objects > 0) { 878 c = zopt_object[0]; 879 880 if (c >= children) 881 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 882 883 if (zopt_objects > 1) { 884 vd = rvd->vdev_child[c]; 885 print_vdev_metaslab_header(vd); 886 887 for (m = 1; m < zopt_objects; m++) { 888 if (zopt_object[m] < vd->vdev_ms_count) 889 dump_metaslab( 890 vd->vdev_ms[zopt_object[m]]); 891 else 892 (void) fprintf(stderr, "bad metaslab " 893 "number %llu\n", 894 (u_longlong_t)zopt_object[m]); 895 } 896 (void) printf("\n"); 897 return; 898 } 899 children = c + 1; 900 } 901 for (; c < children; c++) { 902 vd = rvd->vdev_child[c]; 903 print_vdev_metaslab_header(vd); 904 905 for (m = 0; m < vd->vdev_ms_count; m++) 906 dump_metaslab(vd->vdev_ms[m]); 907 (void) printf("\n"); 908 } 909 } 910 911 static void 912 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 913 { 914 const ddt_phys_t *ddp = dde->dde_phys; 915 const ddt_key_t *ddk = &dde->dde_key; 916 char *types[4] = { "ditto", "single", "double", "triple" }; 917 char blkbuf[BP_SPRINTF_LEN]; 918 blkptr_t blk; 919 920 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 921 if (ddp->ddp_phys_birth == 0) 922 continue; 923 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 924 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 925 (void) printf("index %llx refcnt %llu %s %s\n", 926 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 927 types[p], blkbuf); 928 } 929 } 930 931 static void 932 dump_dedup_ratio(const ddt_stat_t *dds) 933 { 934 double rL, rP, rD, D, dedup, compress, copies; 935 936 if (dds->dds_blocks == 0) 937 return; 938 939 rL = (double)dds->dds_ref_lsize; 940 rP = (double)dds->dds_ref_psize; 941 rD = (double)dds->dds_ref_dsize; 942 D = (double)dds->dds_dsize; 943 944 dedup = rD / D; 945 compress = rL / rP; 946 copies = rD / rP; 947 948 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 949 "dedup * compress / copies = %.2f\n\n", 950 dedup, compress, copies, dedup * compress / copies); 951 } 952 953 static void 954 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 955 { 956 char name[DDT_NAMELEN]; 957 ddt_entry_t dde; 958 uint64_t walk = 0; 959 dmu_object_info_t doi; 960 uint64_t count, dspace, mspace; 961 int error; 962 963 error = ddt_object_info(ddt, type, class, &doi); 964 965 if (error == ENOENT) 966 return; 967 ASSERT(error == 0); 968 969 if ((count = ddt_object_count(ddt, type, class)) == 0) 970 return; 971 972 dspace = doi.doi_physical_blocks_512 << 9; 973 mspace = doi.doi_fill_count * doi.doi_data_block_size; 974 975 ddt_object_name(ddt, type, class, name); 976 977 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 978 name, 979 (u_longlong_t)count, 980 (u_longlong_t)(dspace / count), 981 (u_longlong_t)(mspace / count)); 982 983 if (dump_opt['D'] < 3) 984 return; 985 986 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 987 988 if (dump_opt['D'] < 4) 989 return; 990 991 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 992 return; 993 994 (void) printf("%s contents:\n\n", name); 995 996 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 997 dump_dde(ddt, &dde, walk); 998 999 ASSERT(error == ENOENT); 1000 1001 (void) printf("\n"); 1002 } 1003 1004 static void 1005 dump_all_ddts(spa_t *spa) 1006 { 1007 ddt_histogram_t ddh_total = { 0 }; 1008 ddt_stat_t dds_total = { 0 }; 1009 1010 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 1011 ddt_t *ddt = spa->spa_ddt[c]; 1012 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 1013 for (enum ddt_class class = 0; class < DDT_CLASSES; 1014 class++) { 1015 dump_ddt(ddt, type, class); 1016 } 1017 } 1018 } 1019 1020 ddt_get_dedup_stats(spa, &dds_total); 1021 1022 if (dds_total.dds_blocks == 0) { 1023 (void) printf("All DDTs are empty\n"); 1024 return; 1025 } 1026 1027 (void) printf("\n"); 1028 1029 if (dump_opt['D'] > 1) { 1030 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 1031 ddt_get_dedup_histogram(spa, &ddh_total); 1032 zpool_dump_ddt(&dds_total, &ddh_total); 1033 } 1034 1035 dump_dedup_ratio(&dds_total); 1036 } 1037 1038 static void 1039 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 1040 { 1041 char *prefix = arg; 1042 1043 (void) printf("%s [%llu,%llu) length %llu\n", 1044 prefix, 1045 (u_longlong_t)start, 1046 (u_longlong_t)(start + size), 1047 (u_longlong_t)(size)); 1048 } 1049 1050 static void 1051 dump_dtl(vdev_t *vd, int indent) 1052 { 1053 spa_t *spa = vd->vdev_spa; 1054 boolean_t required; 1055 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 1056 char prefix[256]; 1057 1058 spa_vdev_state_enter(spa, SCL_NONE); 1059 required = vdev_dtl_required(vd); 1060 (void) spa_vdev_state_exit(spa, NULL, 0); 1061 1062 if (indent == 0) 1063 (void) printf("\nDirty time logs:\n\n"); 1064 1065 (void) printf("\t%*s%s [%s]\n", indent, "", 1066 vd->vdev_path ? vd->vdev_path : 1067 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 1068 required ? "DTL-required" : "DTL-expendable"); 1069 1070 for (int t = 0; t < DTL_TYPES; t++) { 1071 range_tree_t *rt = vd->vdev_dtl[t]; 1072 if (range_tree_space(rt) == 0) 1073 continue; 1074 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 1075 indent + 2, "", name[t]); 1076 mutex_enter(rt->rt_lock); 1077 range_tree_walk(rt, dump_dtl_seg, prefix); 1078 mutex_exit(rt->rt_lock); 1079 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 1080 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 1081 } 1082 1083 for (int c = 0; c < vd->vdev_children; c++) 1084 dump_dtl(vd->vdev_child[c], indent + 4); 1085 } 1086 1087 static void 1088 dump_history(spa_t *spa) 1089 { 1090 nvlist_t **events = NULL; 1091 uint64_t resid, len, off = 0; 1092 uint_t num = 0; 1093 int error; 1094 time_t tsec; 1095 struct tm t; 1096 char tbuf[30]; 1097 char internalstr[MAXPATHLEN]; 1098 1099 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 1100 do { 1101 len = SPA_MAXBLOCKSIZE; 1102 1103 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1104 (void) fprintf(stderr, "Unable to read history: " 1105 "error %d\n", error); 1106 umem_free(buf, SPA_MAXBLOCKSIZE); 1107 return; 1108 } 1109 1110 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1111 break; 1112 1113 off -= resid; 1114 } while (len != 0); 1115 umem_free(buf, SPA_MAXBLOCKSIZE); 1116 1117 (void) printf("\nHistory:\n"); 1118 for (int i = 0; i < num; i++) { 1119 uint64_t time, txg, ievent; 1120 char *cmd, *intstr; 1121 boolean_t printed = B_FALSE; 1122 1123 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1124 &time) != 0) 1125 goto next; 1126 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1127 &cmd) != 0) { 1128 if (nvlist_lookup_uint64(events[i], 1129 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1130 goto next; 1131 verify(nvlist_lookup_uint64(events[i], 1132 ZPOOL_HIST_TXG, &txg) == 0); 1133 verify(nvlist_lookup_string(events[i], 1134 ZPOOL_HIST_INT_STR, &intstr) == 0); 1135 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1136 goto next; 1137 1138 (void) snprintf(internalstr, 1139 sizeof (internalstr), 1140 "[internal %s txg:%lld] %s", 1141 zfs_history_event_names[ievent], txg, 1142 intstr); 1143 cmd = internalstr; 1144 } 1145 tsec = time; 1146 (void) localtime_r(&tsec, &t); 1147 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1148 (void) printf("%s %s\n", tbuf, cmd); 1149 printed = B_TRUE; 1150 1151 next: 1152 if (dump_opt['h'] > 1) { 1153 if (!printed) 1154 (void) printf("unrecognized record:\n"); 1155 dump_nvlist(events[i], 2); 1156 } 1157 } 1158 } 1159 1160 /*ARGSUSED*/ 1161 static void 1162 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1163 { 1164 } 1165 1166 static uint64_t 1167 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1168 const zbookmark_phys_t *zb) 1169 { 1170 if (dnp == NULL) { 1171 ASSERT(zb->zb_level < 0); 1172 if (zb->zb_object == 0) 1173 return (zb->zb_blkid); 1174 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1175 } 1176 1177 ASSERT(zb->zb_level >= 0); 1178 1179 return ((zb->zb_blkid << 1180 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1181 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1182 } 1183 1184 static void 1185 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1186 { 1187 const dva_t *dva = bp->blk_dva; 1188 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1189 1190 if (dump_opt['b'] >= 6) { 1191 snprintf_blkptr(blkbuf, buflen, bp); 1192 return; 1193 } 1194 1195 if (BP_IS_EMBEDDED(bp)) { 1196 (void) sprintf(blkbuf, 1197 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1198 (int)BPE_GET_ETYPE(bp), 1199 (u_longlong_t)BPE_GET_LSIZE(bp), 1200 (u_longlong_t)BPE_GET_PSIZE(bp), 1201 (u_longlong_t)bp->blk_birth); 1202 return; 1203 } 1204 1205 blkbuf[0] = '\0'; 1206 for (int i = 0; i < ndvas; i++) 1207 (void) snprintf(blkbuf + strlen(blkbuf), 1208 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1209 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1210 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1211 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1212 1213 if (BP_IS_HOLE(bp)) { 1214 (void) snprintf(blkbuf + strlen(blkbuf), 1215 buflen - strlen(blkbuf), 1216 "%llxL B=%llu", 1217 (u_longlong_t)BP_GET_LSIZE(bp), 1218 (u_longlong_t)bp->blk_birth); 1219 } else { 1220 (void) snprintf(blkbuf + strlen(blkbuf), 1221 buflen - strlen(blkbuf), 1222 "%llxL/%llxP F=%llu B=%llu/%llu", 1223 (u_longlong_t)BP_GET_LSIZE(bp), 1224 (u_longlong_t)BP_GET_PSIZE(bp), 1225 (u_longlong_t)BP_GET_FILL(bp), 1226 (u_longlong_t)bp->blk_birth, 1227 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1228 } 1229 } 1230 1231 static void 1232 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1233 const dnode_phys_t *dnp) 1234 { 1235 char blkbuf[BP_SPRINTF_LEN]; 1236 int l; 1237 1238 if (!BP_IS_EMBEDDED(bp)) { 1239 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1240 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1241 } 1242 1243 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1244 1245 ASSERT(zb->zb_level >= 0); 1246 1247 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1248 if (l == zb->zb_level) { 1249 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1250 } else { 1251 (void) printf(" "); 1252 } 1253 } 1254 1255 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1256 (void) printf("%s\n", blkbuf); 1257 } 1258 1259 static int 1260 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1261 blkptr_t *bp, const zbookmark_phys_t *zb) 1262 { 1263 int err = 0; 1264 1265 if (bp->blk_birth == 0) 1266 return (0); 1267 1268 print_indirect(bp, zb, dnp); 1269 1270 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1271 arc_flags_t flags = ARC_FLAG_WAIT; 1272 int i; 1273 blkptr_t *cbp; 1274 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1275 arc_buf_t *buf; 1276 uint64_t fill = 0; 1277 1278 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1279 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1280 if (err) 1281 return (err); 1282 ASSERT(buf->b_data); 1283 1284 /* recursively visit blocks below this */ 1285 cbp = buf->b_data; 1286 for (i = 0; i < epb; i++, cbp++) { 1287 zbookmark_phys_t czb; 1288 1289 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1290 zb->zb_level - 1, 1291 zb->zb_blkid * epb + i); 1292 err = visit_indirect(spa, dnp, cbp, &czb); 1293 if (err) 1294 break; 1295 fill += BP_GET_FILL(cbp); 1296 } 1297 if (!err) 1298 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1299 arc_buf_destroy(buf, &buf); 1300 } 1301 1302 return (err); 1303 } 1304 1305 /*ARGSUSED*/ 1306 static void 1307 dump_indirect(dnode_t *dn) 1308 { 1309 dnode_phys_t *dnp = dn->dn_phys; 1310 int j; 1311 zbookmark_phys_t czb; 1312 1313 (void) printf("Indirect blocks:\n"); 1314 1315 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1316 dn->dn_object, dnp->dn_nlevels - 1, 0); 1317 for (j = 0; j < dnp->dn_nblkptr; j++) { 1318 czb.zb_blkid = j; 1319 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1320 &dnp->dn_blkptr[j], &czb); 1321 } 1322 1323 (void) printf("\n"); 1324 } 1325 1326 /*ARGSUSED*/ 1327 static void 1328 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1329 { 1330 dsl_dir_phys_t *dd = data; 1331 time_t crtime; 1332 char nice[32]; 1333 1334 if (dd == NULL) 1335 return; 1336 1337 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1338 1339 crtime = dd->dd_creation_time; 1340 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1341 (void) printf("\t\thead_dataset_obj = %llu\n", 1342 (u_longlong_t)dd->dd_head_dataset_obj); 1343 (void) printf("\t\tparent_dir_obj = %llu\n", 1344 (u_longlong_t)dd->dd_parent_obj); 1345 (void) printf("\t\torigin_obj = %llu\n", 1346 (u_longlong_t)dd->dd_origin_obj); 1347 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1348 (u_longlong_t)dd->dd_child_dir_zapobj); 1349 zdb_nicenum(dd->dd_used_bytes, nice); 1350 (void) printf("\t\tused_bytes = %s\n", nice); 1351 zdb_nicenum(dd->dd_compressed_bytes, nice); 1352 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1353 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1354 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1355 zdb_nicenum(dd->dd_quota, nice); 1356 (void) printf("\t\tquota = %s\n", nice); 1357 zdb_nicenum(dd->dd_reserved, nice); 1358 (void) printf("\t\treserved = %s\n", nice); 1359 (void) printf("\t\tprops_zapobj = %llu\n", 1360 (u_longlong_t)dd->dd_props_zapobj); 1361 (void) printf("\t\tdeleg_zapobj = %llu\n", 1362 (u_longlong_t)dd->dd_deleg_zapobj); 1363 (void) printf("\t\tflags = %llx\n", 1364 (u_longlong_t)dd->dd_flags); 1365 1366 #define DO(which) \ 1367 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1368 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1369 DO(HEAD); 1370 DO(SNAP); 1371 DO(CHILD); 1372 DO(CHILD_RSRV); 1373 DO(REFRSRV); 1374 #undef DO 1375 } 1376 1377 /*ARGSUSED*/ 1378 static void 1379 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1380 { 1381 dsl_dataset_phys_t *ds = data; 1382 time_t crtime; 1383 char used[32], compressed[32], uncompressed[32], unique[32]; 1384 char blkbuf[BP_SPRINTF_LEN]; 1385 1386 if (ds == NULL) 1387 return; 1388 1389 ASSERT(size == sizeof (*ds)); 1390 crtime = ds->ds_creation_time; 1391 zdb_nicenum(ds->ds_referenced_bytes, used); 1392 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1393 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1394 zdb_nicenum(ds->ds_unique_bytes, unique); 1395 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1396 1397 (void) printf("\t\tdir_obj = %llu\n", 1398 (u_longlong_t)ds->ds_dir_obj); 1399 (void) printf("\t\tprev_snap_obj = %llu\n", 1400 (u_longlong_t)ds->ds_prev_snap_obj); 1401 (void) printf("\t\tprev_snap_txg = %llu\n", 1402 (u_longlong_t)ds->ds_prev_snap_txg); 1403 (void) printf("\t\tnext_snap_obj = %llu\n", 1404 (u_longlong_t)ds->ds_next_snap_obj); 1405 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1406 (u_longlong_t)ds->ds_snapnames_zapobj); 1407 (void) printf("\t\tnum_children = %llu\n", 1408 (u_longlong_t)ds->ds_num_children); 1409 (void) printf("\t\tuserrefs_obj = %llu\n", 1410 (u_longlong_t)ds->ds_userrefs_obj); 1411 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1412 (void) printf("\t\tcreation_txg = %llu\n", 1413 (u_longlong_t)ds->ds_creation_txg); 1414 (void) printf("\t\tdeadlist_obj = %llu\n", 1415 (u_longlong_t)ds->ds_deadlist_obj); 1416 (void) printf("\t\tused_bytes = %s\n", used); 1417 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1418 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1419 (void) printf("\t\tunique = %s\n", unique); 1420 (void) printf("\t\tfsid_guid = %llu\n", 1421 (u_longlong_t)ds->ds_fsid_guid); 1422 (void) printf("\t\tguid = %llu\n", 1423 (u_longlong_t)ds->ds_guid); 1424 (void) printf("\t\tflags = %llx\n", 1425 (u_longlong_t)ds->ds_flags); 1426 (void) printf("\t\tnext_clones_obj = %llu\n", 1427 (u_longlong_t)ds->ds_next_clones_obj); 1428 (void) printf("\t\tprops_obj = %llu\n", 1429 (u_longlong_t)ds->ds_props_obj); 1430 (void) printf("\t\tbp = %s\n", blkbuf); 1431 } 1432 1433 /* ARGSUSED */ 1434 static int 1435 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1436 { 1437 char blkbuf[BP_SPRINTF_LEN]; 1438 1439 if (bp->blk_birth != 0) { 1440 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1441 (void) printf("\t%s\n", blkbuf); 1442 } 1443 return (0); 1444 } 1445 1446 static void 1447 dump_bptree(objset_t *os, uint64_t obj, char *name) 1448 { 1449 char bytes[32]; 1450 bptree_phys_t *bt; 1451 dmu_buf_t *db; 1452 1453 if (dump_opt['d'] < 3) 1454 return; 1455 1456 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1457 bt = db->db_data; 1458 zdb_nicenum(bt->bt_bytes, bytes); 1459 (void) printf("\n %s: %llu datasets, %s\n", 1460 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1461 dmu_buf_rele(db, FTAG); 1462 1463 if (dump_opt['d'] < 5) 1464 return; 1465 1466 (void) printf("\n"); 1467 1468 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1469 } 1470 1471 /* ARGSUSED */ 1472 static int 1473 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1474 { 1475 char blkbuf[BP_SPRINTF_LEN]; 1476 1477 ASSERT(bp->blk_birth != 0); 1478 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1479 (void) printf("\t%s\n", blkbuf); 1480 return (0); 1481 } 1482 1483 static void 1484 dump_full_bpobj(bpobj_t *bpo, char *name, int indent) 1485 { 1486 char bytes[32]; 1487 char comp[32]; 1488 char uncomp[32]; 1489 1490 if (dump_opt['d'] < 3) 1491 return; 1492 1493 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1494 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1495 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1496 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1497 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1498 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1499 indent * 8, name, 1500 (u_longlong_t)bpo->bpo_object, 1501 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1502 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1503 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1504 bytes, comp, uncomp); 1505 1506 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1507 uint64_t subobj; 1508 bpobj_t subbpo; 1509 int error; 1510 VERIFY0(dmu_read(bpo->bpo_os, 1511 bpo->bpo_phys->bpo_subobjs, 1512 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1513 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1514 if (error != 0) { 1515 (void) printf("ERROR %u while trying to open " 1516 "subobj id %llu\n", 1517 error, (u_longlong_t)subobj); 1518 continue; 1519 } 1520 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1521 bpobj_close(&subbpo); 1522 } 1523 } else { 1524 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1525 indent * 8, name, 1526 (u_longlong_t)bpo->bpo_object, 1527 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1528 bytes); 1529 } 1530 1531 if (dump_opt['d'] < 5) 1532 return; 1533 1534 1535 if (indent == 0) { 1536 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1537 (void) printf("\n"); 1538 } 1539 } 1540 1541 static void 1542 dump_deadlist(dsl_deadlist_t *dl) 1543 { 1544 dsl_deadlist_entry_t *dle; 1545 uint64_t unused; 1546 char bytes[32]; 1547 char comp[32]; 1548 char uncomp[32]; 1549 1550 if (dump_opt['d'] < 3) 1551 return; 1552 1553 if (dl->dl_oldfmt) { 1554 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1555 return; 1556 } 1557 1558 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1559 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1560 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1561 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1562 bytes, comp, uncomp); 1563 1564 if (dump_opt['d'] < 4) 1565 return; 1566 1567 (void) printf("\n"); 1568 1569 /* force the tree to be loaded */ 1570 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1571 1572 for (dle = avl_first(&dl->dl_tree); dle; 1573 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1574 if (dump_opt['d'] >= 5) { 1575 char buf[128]; 1576 (void) snprintf(buf, sizeof (buf), 1577 "mintxg %llu -> obj %llu", 1578 (longlong_t)dle->dle_mintxg, 1579 (longlong_t)dle->dle_bpobj.bpo_object); 1580 1581 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1582 } else { 1583 (void) printf("mintxg %llu -> obj %llu\n", 1584 (longlong_t)dle->dle_mintxg, 1585 (longlong_t)dle->dle_bpobj.bpo_object); 1586 1587 } 1588 } 1589 } 1590 1591 static avl_tree_t idx_tree; 1592 static avl_tree_t domain_tree; 1593 static boolean_t fuid_table_loaded; 1594 static objset_t *sa_os = NULL; 1595 static sa_attr_type_t *sa_attr_table = NULL; 1596 1597 static int 1598 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp) 1599 { 1600 int err; 1601 uint64_t sa_attrs = 0; 1602 uint64_t version = 0; 1603 1604 VERIFY3P(sa_os, ==, NULL); 1605 err = dmu_objset_own(path, type, B_TRUE, tag, osp); 1606 if (err != 0) { 1607 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path, 1608 strerror(err)); 1609 return (err); 1610 } 1611 1612 if (dmu_objset_type(*osp) == DMU_OST_ZFS) { 1613 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1614 8, 1, &version); 1615 if (version >= ZPL_VERSION_SA) { 1616 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1617 8, 1, &sa_attrs); 1618 } 1619 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, 1620 &sa_attr_table); 1621 if (err != 0) { 1622 (void) fprintf(stderr, "sa_setup failed: %s\n", 1623 strerror(err)); 1624 dmu_objset_disown(*osp, tag); 1625 *osp = NULL; 1626 } 1627 } 1628 sa_os = *osp; 1629 1630 return (0); 1631 } 1632 1633 static void 1634 close_objset(objset_t *os, void *tag) 1635 { 1636 VERIFY3P(os, ==, sa_os); 1637 if (os->os_sa != NULL) 1638 sa_tear_down(os); 1639 dmu_objset_disown(os, tag); 1640 sa_attr_table = NULL; 1641 sa_os = NULL; 1642 } 1643 1644 static void 1645 fuid_table_destroy() 1646 { 1647 if (fuid_table_loaded) { 1648 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1649 fuid_table_loaded = B_FALSE; 1650 } 1651 } 1652 1653 /* 1654 * print uid or gid information. 1655 * For normal POSIX id just the id is printed in decimal format. 1656 * For CIFS files with FUID the fuid is printed in hex followed by 1657 * the domain-rid string. 1658 */ 1659 static void 1660 print_idstr(uint64_t id, const char *id_type) 1661 { 1662 if (FUID_INDEX(id)) { 1663 char *domain; 1664 1665 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1666 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1667 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1668 } else { 1669 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1670 } 1671 1672 } 1673 1674 static void 1675 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1676 { 1677 uint32_t uid_idx, gid_idx; 1678 1679 uid_idx = FUID_INDEX(uid); 1680 gid_idx = FUID_INDEX(gid); 1681 1682 /* Load domain table, if not already loaded */ 1683 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1684 uint64_t fuid_obj; 1685 1686 /* first find the fuid object. It lives in the master node */ 1687 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1688 8, 1, &fuid_obj) == 0); 1689 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1690 (void) zfs_fuid_table_load(os, fuid_obj, 1691 &idx_tree, &domain_tree); 1692 fuid_table_loaded = B_TRUE; 1693 } 1694 1695 print_idstr(uid, "uid"); 1696 print_idstr(gid, "gid"); 1697 } 1698 1699 /*ARGSUSED*/ 1700 static void 1701 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1702 { 1703 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1704 sa_handle_t *hdl; 1705 uint64_t xattr, rdev, gen; 1706 uint64_t uid, gid, mode, fsize, parent, links; 1707 uint64_t pflags; 1708 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1709 time_t z_crtime, z_atime, z_mtime, z_ctime; 1710 sa_bulk_attr_t bulk[12]; 1711 int idx = 0; 1712 int error; 1713 1714 VERIFY3P(os, ==, sa_os); 1715 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1716 (void) printf("Failed to get handle for SA znode\n"); 1717 return; 1718 } 1719 1720 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1721 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1722 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1723 &links, 8); 1724 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1725 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1726 &mode, 8); 1727 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1728 NULL, &parent, 8); 1729 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1730 &fsize, 8); 1731 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1732 acctm, 16); 1733 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1734 modtm, 16); 1735 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1736 crtm, 16); 1737 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1738 chgtm, 16); 1739 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1740 &pflags, 8); 1741 1742 if (sa_bulk_lookup(hdl, bulk, idx)) { 1743 (void) sa_handle_destroy(hdl); 1744 return; 1745 } 1746 1747 z_crtime = (time_t)crtm[0]; 1748 z_atime = (time_t)acctm[0]; 1749 z_mtime = (time_t)modtm[0]; 1750 z_ctime = (time_t)chgtm[0]; 1751 1752 if (dump_opt['d'] > 4) { 1753 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1754 if (error != 0) { 1755 (void) snprintf(path, sizeof (path), 1756 "\?\?\?<object#%llu>", (u_longlong_t)object); 1757 } 1758 (void) printf("\tpath %s\n", path); 1759 } 1760 dump_uidgid(os, uid, gid); 1761 (void) printf("\tatime %s", ctime(&z_atime)); 1762 (void) printf("\tmtime %s", ctime(&z_mtime)); 1763 (void) printf("\tctime %s", ctime(&z_ctime)); 1764 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1765 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1766 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1767 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1768 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1769 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1770 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1771 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1772 sizeof (uint64_t)) == 0) 1773 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1774 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1775 sizeof (uint64_t)) == 0) 1776 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1777 sa_handle_destroy(hdl); 1778 } 1779 1780 /*ARGSUSED*/ 1781 static void 1782 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1783 { 1784 } 1785 1786 /*ARGSUSED*/ 1787 static void 1788 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1789 { 1790 } 1791 1792 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1793 dump_none, /* unallocated */ 1794 dump_zap, /* object directory */ 1795 dump_uint64, /* object array */ 1796 dump_none, /* packed nvlist */ 1797 dump_packed_nvlist, /* packed nvlist size */ 1798 dump_none, /* bpobj */ 1799 dump_bpobj, /* bpobj header */ 1800 dump_none, /* SPA space map header */ 1801 dump_none, /* SPA space map */ 1802 dump_none, /* ZIL intent log */ 1803 dump_dnode, /* DMU dnode */ 1804 dump_dmu_objset, /* DMU objset */ 1805 dump_dsl_dir, /* DSL directory */ 1806 dump_zap, /* DSL directory child map */ 1807 dump_zap, /* DSL dataset snap map */ 1808 dump_zap, /* DSL props */ 1809 dump_dsl_dataset, /* DSL dataset */ 1810 dump_znode, /* ZFS znode */ 1811 dump_acl, /* ZFS V0 ACL */ 1812 dump_uint8, /* ZFS plain file */ 1813 dump_zpldir, /* ZFS directory */ 1814 dump_zap, /* ZFS master node */ 1815 dump_zap, /* ZFS delete queue */ 1816 dump_uint8, /* zvol object */ 1817 dump_zap, /* zvol prop */ 1818 dump_uint8, /* other uint8[] */ 1819 dump_uint64, /* other uint64[] */ 1820 dump_zap, /* other ZAP */ 1821 dump_zap, /* persistent error log */ 1822 dump_uint8, /* SPA history */ 1823 dump_history_offsets, /* SPA history offsets */ 1824 dump_zap, /* Pool properties */ 1825 dump_zap, /* DSL permissions */ 1826 dump_acl, /* ZFS ACL */ 1827 dump_uint8, /* ZFS SYSACL */ 1828 dump_none, /* FUID nvlist */ 1829 dump_packed_nvlist, /* FUID nvlist size */ 1830 dump_zap, /* DSL dataset next clones */ 1831 dump_zap, /* DSL scrub queue */ 1832 dump_zap, /* ZFS user/group used */ 1833 dump_zap, /* ZFS user/group quota */ 1834 dump_zap, /* snapshot refcount tags */ 1835 dump_ddt_zap, /* DDT ZAP object */ 1836 dump_zap, /* DDT statistics */ 1837 dump_znode, /* SA object */ 1838 dump_zap, /* SA Master Node */ 1839 dump_sa_attrs, /* SA attribute registration */ 1840 dump_sa_layouts, /* SA attribute layouts */ 1841 dump_zap, /* DSL scrub translations */ 1842 dump_none, /* fake dedup BP */ 1843 dump_zap, /* deadlist */ 1844 dump_none, /* deadlist hdr */ 1845 dump_zap, /* dsl clones */ 1846 dump_bpobj_subobjs, /* bpobj subobjs */ 1847 dump_unknown, /* Unknown type, must be last */ 1848 }; 1849 1850 static void 1851 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1852 { 1853 dmu_buf_t *db = NULL; 1854 dmu_object_info_t doi; 1855 dnode_t *dn; 1856 void *bonus = NULL; 1857 size_t bsize = 0; 1858 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1859 char bonus_size[32]; 1860 char aux[50]; 1861 int error; 1862 1863 if (*print_header) { 1864 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1865 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1866 "%full", "type"); 1867 *print_header = 0; 1868 } 1869 1870 if (object == 0) { 1871 dn = DMU_META_DNODE(os); 1872 } else { 1873 error = dmu_bonus_hold(os, object, FTAG, &db); 1874 if (error) 1875 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1876 object, error); 1877 bonus = db->db_data; 1878 bsize = db->db_size; 1879 dn = DB_DNODE((dmu_buf_impl_t *)db); 1880 } 1881 dmu_object_info_from_dnode(dn, &doi); 1882 1883 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1884 zdb_nicenum(doi.doi_data_block_size, dblk); 1885 zdb_nicenum(doi.doi_max_offset, lsize); 1886 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1887 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1888 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1889 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1890 doi.doi_max_offset); 1891 1892 aux[0] = '\0'; 1893 1894 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1895 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1896 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1897 } 1898 1899 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1900 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1901 ZDB_COMPRESS_NAME(doi.doi_compress)); 1902 } 1903 1904 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1905 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1906 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1907 1908 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1909 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1910 "", "", "", "", "", bonus_size, "bonus", 1911 ZDB_OT_NAME(doi.doi_bonus_type)); 1912 } 1913 1914 if (verbosity >= 4) { 1915 (void) printf("\tdnode flags: %s%s%s\n", 1916 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1917 "USED_BYTES " : "", 1918 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1919 "USERUSED_ACCOUNTED " : "", 1920 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1921 "SPILL_BLKPTR" : ""); 1922 (void) printf("\tdnode maxblkid: %llu\n", 1923 (longlong_t)dn->dn_phys->dn_maxblkid); 1924 1925 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1926 bonus, bsize); 1927 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1928 *print_header = 1; 1929 } 1930 1931 if (verbosity >= 5) 1932 dump_indirect(dn); 1933 1934 if (verbosity >= 5) { 1935 /* 1936 * Report the list of segments that comprise the object. 1937 */ 1938 uint64_t start = 0; 1939 uint64_t end; 1940 uint64_t blkfill = 1; 1941 int minlvl = 1; 1942 1943 if (dn->dn_type == DMU_OT_DNODE) { 1944 minlvl = 0; 1945 blkfill = DNODES_PER_BLOCK; 1946 } 1947 1948 for (;;) { 1949 char segsize[32]; 1950 error = dnode_next_offset(dn, 1951 0, &start, minlvl, blkfill, 0); 1952 if (error) 1953 break; 1954 end = start; 1955 error = dnode_next_offset(dn, 1956 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1957 zdb_nicenum(end - start, segsize); 1958 (void) printf("\t\tsegment [%016llx, %016llx)" 1959 " size %5s\n", (u_longlong_t)start, 1960 (u_longlong_t)end, segsize); 1961 if (error) 1962 break; 1963 start = end; 1964 } 1965 } 1966 1967 if (db != NULL) 1968 dmu_buf_rele(db, FTAG); 1969 } 1970 1971 static char *objset_types[DMU_OST_NUMTYPES] = { 1972 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1973 1974 static void 1975 dump_dir(objset_t *os) 1976 { 1977 dmu_objset_stats_t dds; 1978 uint64_t object, object_count; 1979 uint64_t refdbytes, usedobjs, scratch; 1980 char numbuf[32]; 1981 char blkbuf[BP_SPRINTF_LEN + 20]; 1982 char osname[ZFS_MAX_DATASET_NAME_LEN]; 1983 char *type = "UNKNOWN"; 1984 int verbosity = dump_opt['d']; 1985 int print_header = 1; 1986 int i, error; 1987 1988 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1989 dmu_objset_fast_stat(os, &dds); 1990 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1991 1992 if (dds.dds_type < DMU_OST_NUMTYPES) 1993 type = objset_types[dds.dds_type]; 1994 1995 if (dds.dds_type == DMU_OST_META) { 1996 dds.dds_creation_txg = TXG_INITIAL; 1997 usedobjs = BP_GET_FILL(os->os_rootbp); 1998 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 1999 dd_used_bytes; 2000 } else { 2001 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 2002 } 2003 2004 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 2005 2006 zdb_nicenum(refdbytes, numbuf); 2007 2008 if (verbosity >= 4) { 2009 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 2010 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 2011 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 2012 } else { 2013 blkbuf[0] = '\0'; 2014 } 2015 2016 dmu_objset_name(os, osname); 2017 2018 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 2019 "%s, %llu objects%s\n", 2020 osname, type, (u_longlong_t)dmu_objset_id(os), 2021 (u_longlong_t)dds.dds_creation_txg, 2022 numbuf, (u_longlong_t)usedobjs, blkbuf); 2023 2024 if (zopt_objects != 0) { 2025 for (i = 0; i < zopt_objects; i++) 2026 dump_object(os, zopt_object[i], verbosity, 2027 &print_header); 2028 (void) printf("\n"); 2029 return; 2030 } 2031 2032 if (dump_opt['i'] != 0 || verbosity >= 2) 2033 dump_intent_log(dmu_objset_zil(os)); 2034 2035 if (dmu_objset_ds(os) != NULL) 2036 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 2037 2038 if (verbosity < 2) 2039 return; 2040 2041 if (BP_IS_HOLE(os->os_rootbp)) 2042 return; 2043 2044 dump_object(os, 0, verbosity, &print_header); 2045 object_count = 0; 2046 if (DMU_USERUSED_DNODE(os) != NULL && 2047 DMU_USERUSED_DNODE(os)->dn_type != 0) { 2048 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 2049 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 2050 } 2051 2052 object = 0; 2053 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 2054 dump_object(os, object, verbosity, &print_header); 2055 object_count++; 2056 } 2057 2058 ASSERT3U(object_count, ==, usedobjs); 2059 2060 (void) printf("\n"); 2061 2062 if (error != ESRCH) { 2063 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2064 abort(); 2065 } 2066 } 2067 2068 static void 2069 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2070 { 2071 time_t timestamp = ub->ub_timestamp; 2072 2073 (void) printf(header ? header : ""); 2074 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2075 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2076 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2077 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2078 (void) printf("\ttimestamp = %llu UTC = %s", 2079 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2080 if (dump_opt['u'] >= 3) { 2081 char blkbuf[BP_SPRINTF_LEN]; 2082 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2083 (void) printf("\trootbp = %s\n", blkbuf); 2084 } 2085 (void) printf(footer ? footer : ""); 2086 } 2087 2088 static void 2089 dump_config(spa_t *spa) 2090 { 2091 dmu_buf_t *db; 2092 size_t nvsize = 0; 2093 int error = 0; 2094 2095 2096 error = dmu_bonus_hold(spa->spa_meta_objset, 2097 spa->spa_config_object, FTAG, &db); 2098 2099 if (error == 0) { 2100 nvsize = *(uint64_t *)db->db_data; 2101 dmu_buf_rele(db, FTAG); 2102 2103 (void) printf("\nMOS Configuration:\n"); 2104 dump_packed_nvlist(spa->spa_meta_objset, 2105 spa->spa_config_object, (void *)&nvsize, 1); 2106 } else { 2107 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2108 (u_longlong_t)spa->spa_config_object, error); 2109 } 2110 } 2111 2112 static void 2113 dump_cachefile(const char *cachefile) 2114 { 2115 int fd; 2116 struct stat64 statbuf; 2117 char *buf; 2118 nvlist_t *config; 2119 2120 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2121 (void) printf("cannot open '%s': %s\n", cachefile, 2122 strerror(errno)); 2123 exit(1); 2124 } 2125 2126 if (fstat64(fd, &statbuf) != 0) { 2127 (void) printf("failed to stat '%s': %s\n", cachefile, 2128 strerror(errno)); 2129 exit(1); 2130 } 2131 2132 if ((buf = malloc(statbuf.st_size)) == NULL) { 2133 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2134 (u_longlong_t)statbuf.st_size); 2135 exit(1); 2136 } 2137 2138 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2139 (void) fprintf(stderr, "failed to read %llu bytes\n", 2140 (u_longlong_t)statbuf.st_size); 2141 exit(1); 2142 } 2143 2144 (void) close(fd); 2145 2146 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2147 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2148 exit(1); 2149 } 2150 2151 free(buf); 2152 2153 dump_nvlist(config, 0); 2154 2155 nvlist_free(config); 2156 } 2157 2158 #define ZDB_MAX_UB_HEADER_SIZE 32 2159 2160 static void 2161 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2162 { 2163 vdev_t vd; 2164 vdev_t *vdp = &vd; 2165 char header[ZDB_MAX_UB_HEADER_SIZE]; 2166 2167 vd.vdev_ashift = ashift; 2168 vdp->vdev_top = vdp; 2169 2170 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2171 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2172 uberblock_t *ub = (void *)((char *)lbl + uoff); 2173 2174 if (uberblock_verify(ub)) 2175 continue; 2176 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2177 "Uberblock[%d]\n", i); 2178 dump_uberblock(ub, header, ""); 2179 } 2180 } 2181 2182 static char curpath[PATH_MAX]; 2183 2184 /* 2185 * Iterate through the path components, recursively passing 2186 * current one's obj and remaining path until we find the obj 2187 * for the last one. 2188 */ 2189 static int 2190 dump_path_impl(objset_t *os, uint64_t obj, char *name) 2191 { 2192 int err; 2193 int header = 1; 2194 uint64_t child_obj; 2195 char *s; 2196 dmu_buf_t *db; 2197 dmu_object_info_t doi; 2198 2199 if ((s = strchr(name, '/')) != NULL) 2200 *s = '\0'; 2201 err = zap_lookup(os, obj, name, 8, 1, &child_obj); 2202 2203 (void) strlcat(curpath, name, sizeof (curpath)); 2204 2205 if (err != 0) { 2206 (void) fprintf(stderr, "failed to lookup %s: %s\n", 2207 curpath, strerror(err)); 2208 return (err); 2209 } 2210 2211 child_obj = ZFS_DIRENT_OBJ(child_obj); 2212 err = sa_buf_hold(os, child_obj, FTAG, &db); 2213 if (err != 0) { 2214 (void) fprintf(stderr, 2215 "failed to get SA dbuf for obj %llu: %s\n", 2216 (u_longlong_t)child_obj, strerror(err)); 2217 return (EINVAL); 2218 } 2219 dmu_object_info_from_db(db, &doi); 2220 sa_buf_rele(db, FTAG); 2221 2222 if (doi.doi_bonus_type != DMU_OT_SA && 2223 doi.doi_bonus_type != DMU_OT_ZNODE) { 2224 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", 2225 doi.doi_bonus_type, (u_longlong_t)child_obj); 2226 return (EINVAL); 2227 } 2228 2229 if (dump_opt['v'] > 6) { 2230 (void) printf("obj=%llu %s type=%d bonustype=%d\n", 2231 (u_longlong_t)child_obj, curpath, doi.doi_type, 2232 doi.doi_bonus_type); 2233 } 2234 2235 (void) strlcat(curpath, "/", sizeof (curpath)); 2236 2237 switch (doi.doi_type) { 2238 case DMU_OT_DIRECTORY_CONTENTS: 2239 if (s != NULL && *(s + 1) != '\0') 2240 return (dump_path_impl(os, child_obj, s + 1)); 2241 /*FALLTHROUGH*/ 2242 case DMU_OT_PLAIN_FILE_CONTENTS: 2243 dump_object(os, child_obj, dump_opt['v'], &header); 2244 return (0); 2245 default: 2246 (void) fprintf(stderr, "object %llu has non-file/directory " 2247 "type %d\n", (u_longlong_t)obj, doi.doi_type); 2248 break; 2249 } 2250 2251 return (EINVAL); 2252 } 2253 2254 /* 2255 * Dump the blocks for the object specified by path inside the dataset. 2256 */ 2257 static int 2258 dump_path(char *ds, char *path) 2259 { 2260 int err; 2261 objset_t *os; 2262 uint64_t root_obj; 2263 2264 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os); 2265 if (err != 0) 2266 return (err); 2267 2268 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); 2269 if (err != 0) { 2270 (void) fprintf(stderr, "can't lookup root znode: %s\n", 2271 strerror(err)); 2272 dmu_objset_disown(os, FTAG); 2273 return (EINVAL); 2274 } 2275 2276 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); 2277 2278 err = dump_path_impl(os, root_obj, path); 2279 2280 close_objset(os, FTAG); 2281 return (err); 2282 } 2283 2284 static int 2285 dump_label(const char *dev) 2286 { 2287 int fd; 2288 vdev_label_t label; 2289 char path[MAXPATHLEN]; 2290 char *buf = label.vl_vdev_phys.vp_nvlist; 2291 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2292 struct stat64 statbuf; 2293 uint64_t psize, ashift; 2294 boolean_t label_found = B_FALSE; 2295 2296 (void) strlcpy(path, dev, sizeof (path)); 2297 if (dev[0] == '/') { 2298 if (strncmp(dev, ZFS_DISK_ROOTD, 2299 strlen(ZFS_DISK_ROOTD)) == 0) { 2300 (void) snprintf(path, sizeof (path), "%s%s", 2301 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD)); 2302 } 2303 } else if (stat64(path, &statbuf) != 0) { 2304 char *s; 2305 2306 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD, 2307 dev); 2308 if ((s = strrchr(dev, 's')) == NULL || !isdigit(*(s + 1))) 2309 (void) strlcat(path, "s0", sizeof (path)); 2310 } 2311 2312 if (stat64(path, &statbuf) != 0) { 2313 (void) printf("failed to stat '%s': %s\n", path, 2314 strerror(errno)); 2315 exit(1); 2316 } 2317 2318 if (S_ISBLK(statbuf.st_mode)) { 2319 (void) printf("cannot use '%s': character device required\n", 2320 path); 2321 exit(1); 2322 } 2323 2324 if ((fd = open64(path, O_RDONLY)) < 0) { 2325 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2326 exit(1); 2327 } 2328 2329 psize = statbuf.st_size; 2330 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2331 2332 for (int l = 0; l < VDEV_LABELS; l++) { 2333 nvlist_t *config = NULL; 2334 2335 if (!dump_opt['q']) { 2336 (void) printf("------------------------------------\n"); 2337 (void) printf("LABEL %d\n", l); 2338 (void) printf("------------------------------------\n"); 2339 } 2340 2341 if (pread64(fd, &label, sizeof (label), 2342 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2343 if (!dump_opt['q']) 2344 (void) printf("failed to read label %d\n", l); 2345 continue; 2346 } 2347 2348 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2349 if (!dump_opt['q']) 2350 (void) printf("failed to unpack label %d\n", l); 2351 ashift = SPA_MINBLOCKSHIFT; 2352 } else { 2353 nvlist_t *vdev_tree = NULL; 2354 2355 if (!dump_opt['q']) 2356 dump_nvlist(config, 4); 2357 if ((nvlist_lookup_nvlist(config, 2358 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2359 (nvlist_lookup_uint64(vdev_tree, 2360 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2361 ashift = SPA_MINBLOCKSHIFT; 2362 nvlist_free(config); 2363 label_found = B_TRUE; 2364 } 2365 if (dump_opt['u']) 2366 dump_label_uberblocks(&label, ashift); 2367 } 2368 2369 (void) close(fd); 2370 2371 return (label_found ? 0 : 2); 2372 } 2373 2374 static uint64_t dataset_feature_count[SPA_FEATURES]; 2375 2376 /*ARGSUSED*/ 2377 static int 2378 dump_one_dir(const char *dsname, void *arg) 2379 { 2380 int error; 2381 objset_t *os; 2382 2383 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os); 2384 if (error != 0) 2385 return (0); 2386 2387 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2388 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2389 continue; 2390 ASSERT(spa_feature_table[f].fi_flags & 2391 ZFEATURE_FLAG_PER_DATASET); 2392 dataset_feature_count[f]++; 2393 } 2394 2395 dump_dir(os); 2396 close_objset(os, FTAG); 2397 fuid_table_destroy(); 2398 return (0); 2399 } 2400 2401 /* 2402 * Block statistics. 2403 */ 2404 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2405 typedef struct zdb_blkstats { 2406 uint64_t zb_asize; 2407 uint64_t zb_lsize; 2408 uint64_t zb_psize; 2409 uint64_t zb_count; 2410 uint64_t zb_gangs; 2411 uint64_t zb_ditto_samevdev; 2412 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2413 } zdb_blkstats_t; 2414 2415 /* 2416 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2417 */ 2418 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2419 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2420 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2421 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2422 2423 static char *zdb_ot_extname[] = { 2424 "deferred free", 2425 "dedup ditto", 2426 "other", 2427 "Total", 2428 }; 2429 2430 #define ZB_TOTAL DN_MAX_LEVELS 2431 2432 typedef struct zdb_cb { 2433 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2434 uint64_t zcb_dedup_asize; 2435 uint64_t zcb_dedup_blocks; 2436 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2437 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2438 [BPE_PAYLOAD_SIZE]; 2439 uint64_t zcb_start; 2440 uint64_t zcb_lastprint; 2441 uint64_t zcb_totalasize; 2442 uint64_t zcb_errors[256]; 2443 int zcb_readfails; 2444 int zcb_haderrors; 2445 spa_t *zcb_spa; 2446 } zdb_cb_t; 2447 2448 static void 2449 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2450 dmu_object_type_t type) 2451 { 2452 uint64_t refcnt = 0; 2453 2454 ASSERT(type < ZDB_OT_TOTAL); 2455 2456 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2457 return; 2458 2459 for (int i = 0; i < 4; i++) { 2460 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2461 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2462 int equal; 2463 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2464 2465 zb->zb_asize += BP_GET_ASIZE(bp); 2466 zb->zb_lsize += BP_GET_LSIZE(bp); 2467 zb->zb_psize += BP_GET_PSIZE(bp); 2468 zb->zb_count++; 2469 2470 /* 2471 * The histogram is only big enough to record blocks up to 2472 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2473 * "other", bucket. 2474 */ 2475 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2476 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2477 zb->zb_psize_histogram[idx]++; 2478 2479 zb->zb_gangs += BP_COUNT_GANG(bp); 2480 2481 switch (BP_GET_NDVAS(bp)) { 2482 case 2: 2483 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2484 DVA_GET_VDEV(&bp->blk_dva[1])) 2485 zb->zb_ditto_samevdev++; 2486 break; 2487 case 3: 2488 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2489 DVA_GET_VDEV(&bp->blk_dva[1])) + 2490 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2491 DVA_GET_VDEV(&bp->blk_dva[2])) + 2492 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2493 DVA_GET_VDEV(&bp->blk_dva[2])); 2494 if (equal != 0) 2495 zb->zb_ditto_samevdev++; 2496 break; 2497 } 2498 2499 } 2500 2501 if (BP_IS_EMBEDDED(bp)) { 2502 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2503 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2504 [BPE_GET_PSIZE(bp)]++; 2505 return; 2506 } 2507 2508 if (dump_opt['L']) 2509 return; 2510 2511 if (BP_GET_DEDUP(bp)) { 2512 ddt_t *ddt; 2513 ddt_entry_t *dde; 2514 2515 ddt = ddt_select(zcb->zcb_spa, bp); 2516 ddt_enter(ddt); 2517 dde = ddt_lookup(ddt, bp, B_FALSE); 2518 2519 if (dde == NULL) { 2520 refcnt = 0; 2521 } else { 2522 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2523 ddt_phys_decref(ddp); 2524 refcnt = ddp->ddp_refcnt; 2525 if (ddt_phys_total_refcnt(dde) == 0) 2526 ddt_remove(ddt, dde); 2527 } 2528 ddt_exit(ddt); 2529 } 2530 2531 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2532 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2533 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2534 } 2535 2536 static void 2537 zdb_blkptr_done(zio_t *zio) 2538 { 2539 spa_t *spa = zio->io_spa; 2540 blkptr_t *bp = zio->io_bp; 2541 int ioerr = zio->io_error; 2542 zdb_cb_t *zcb = zio->io_private; 2543 zbookmark_phys_t *zb = &zio->io_bookmark; 2544 2545 abd_free(zio->io_abd); 2546 2547 mutex_enter(&spa->spa_scrub_lock); 2548 spa->spa_scrub_inflight--; 2549 cv_broadcast(&spa->spa_scrub_io_cv); 2550 2551 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2552 char blkbuf[BP_SPRINTF_LEN]; 2553 2554 zcb->zcb_haderrors = 1; 2555 zcb->zcb_errors[ioerr]++; 2556 2557 if (dump_opt['b'] >= 2) 2558 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2559 else 2560 blkbuf[0] = '\0'; 2561 2562 (void) printf("zdb_blkptr_cb: " 2563 "Got error %d reading " 2564 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2565 ioerr, 2566 (u_longlong_t)zb->zb_objset, 2567 (u_longlong_t)zb->zb_object, 2568 (u_longlong_t)zb->zb_level, 2569 (u_longlong_t)zb->zb_blkid, 2570 blkbuf); 2571 } 2572 mutex_exit(&spa->spa_scrub_lock); 2573 } 2574 2575 static int 2576 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2577 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2578 { 2579 zdb_cb_t *zcb = arg; 2580 dmu_object_type_t type; 2581 boolean_t is_metadata; 2582 2583 if (bp == NULL) 2584 return (0); 2585 2586 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2587 char blkbuf[BP_SPRINTF_LEN]; 2588 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2589 (void) printf("objset %llu object %llu " 2590 "level %lld offset 0x%llx %s\n", 2591 (u_longlong_t)zb->zb_objset, 2592 (u_longlong_t)zb->zb_object, 2593 (longlong_t)zb->zb_level, 2594 (u_longlong_t)blkid2offset(dnp, bp, zb), 2595 blkbuf); 2596 } 2597 2598 if (BP_IS_HOLE(bp)) 2599 return (0); 2600 2601 type = BP_GET_TYPE(bp); 2602 2603 zdb_count_block(zcb, zilog, bp, 2604 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2605 2606 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2607 2608 if (!BP_IS_EMBEDDED(bp) && 2609 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2610 size_t size = BP_GET_PSIZE(bp); 2611 abd_t *abd = abd_alloc(size, B_FALSE); 2612 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2613 2614 /* If it's an intent log block, failure is expected. */ 2615 if (zb->zb_level == ZB_ZIL_LEVEL) 2616 flags |= ZIO_FLAG_SPECULATIVE; 2617 2618 mutex_enter(&spa->spa_scrub_lock); 2619 while (spa->spa_scrub_inflight > max_inflight) 2620 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2621 spa->spa_scrub_inflight++; 2622 mutex_exit(&spa->spa_scrub_lock); 2623 2624 zio_nowait(zio_read(NULL, spa, bp, abd, size, 2625 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2626 } 2627 2628 zcb->zcb_readfails = 0; 2629 2630 /* only call gethrtime() every 100 blocks */ 2631 static int iters; 2632 if (++iters > 100) 2633 iters = 0; 2634 else 2635 return (0); 2636 2637 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2638 uint64_t now = gethrtime(); 2639 char buf[10]; 2640 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2641 int kb_per_sec = 2642 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2643 int sec_remaining = 2644 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2645 2646 zfs_nicenum(bytes, buf, sizeof (buf)); 2647 (void) fprintf(stderr, 2648 "\r%5s completed (%4dMB/s) " 2649 "estimated time remaining: %uhr %02umin %02usec ", 2650 buf, kb_per_sec / 1024, 2651 sec_remaining / 60 / 60, 2652 sec_remaining / 60 % 60, 2653 sec_remaining % 60); 2654 2655 zcb->zcb_lastprint = now; 2656 } 2657 2658 return (0); 2659 } 2660 2661 static void 2662 zdb_leak(void *arg, uint64_t start, uint64_t size) 2663 { 2664 vdev_t *vd = arg; 2665 2666 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2667 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2668 } 2669 2670 static metaslab_ops_t zdb_metaslab_ops = { 2671 NULL /* alloc */ 2672 }; 2673 2674 static void 2675 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2676 { 2677 ddt_bookmark_t ddb = { 0 }; 2678 ddt_entry_t dde; 2679 int error; 2680 2681 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2682 blkptr_t blk; 2683 ddt_phys_t *ddp = dde.dde_phys; 2684 2685 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2686 return; 2687 2688 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2689 2690 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2691 if (ddp->ddp_phys_birth == 0) 2692 continue; 2693 ddt_bp_create(ddb.ddb_checksum, 2694 &dde.dde_key, ddp, &blk); 2695 if (p == DDT_PHYS_DITTO) { 2696 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2697 } else { 2698 zcb->zcb_dedup_asize += 2699 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2700 zcb->zcb_dedup_blocks++; 2701 } 2702 } 2703 if (!dump_opt['L']) { 2704 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2705 ddt_enter(ddt); 2706 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2707 ddt_exit(ddt); 2708 } 2709 } 2710 2711 ASSERT(error == ENOENT); 2712 } 2713 2714 static void 2715 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2716 { 2717 zcb->zcb_spa = spa; 2718 2719 if (!dump_opt['L']) { 2720 vdev_t *rvd = spa->spa_root_vdev; 2721 2722 /* 2723 * We are going to be changing the meaning of the metaslab's 2724 * ms_tree. Ensure that the allocator doesn't try to 2725 * use the tree. 2726 */ 2727 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 2728 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 2729 2730 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 2731 vdev_t *vd = rvd->vdev_child[c]; 2732 metaslab_group_t *mg = vd->vdev_mg; 2733 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 2734 metaslab_t *msp = vd->vdev_ms[m]; 2735 ASSERT3P(msp->ms_group, ==, mg); 2736 mutex_enter(&msp->ms_lock); 2737 metaslab_unload(msp); 2738 2739 /* 2740 * For leak detection, we overload the metaslab 2741 * ms_tree to contain allocated segments 2742 * instead of free segments. As a result, 2743 * we can't use the normal metaslab_load/unload 2744 * interfaces. 2745 */ 2746 if (msp->ms_sm != NULL) { 2747 (void) fprintf(stderr, 2748 "\rloading space map for " 2749 "vdev %llu of %llu, " 2750 "metaslab %llu of %llu ...", 2751 (longlong_t)c, 2752 (longlong_t)rvd->vdev_children, 2753 (longlong_t)m, 2754 (longlong_t)vd->vdev_ms_count); 2755 2756 /* 2757 * We don't want to spend the CPU 2758 * manipulating the size-ordered 2759 * tree, so clear the range_tree 2760 * ops. 2761 */ 2762 msp->ms_tree->rt_ops = NULL; 2763 VERIFY0(space_map_load(msp->ms_sm, 2764 msp->ms_tree, SM_ALLOC)); 2765 2766 if (!msp->ms_loaded) { 2767 msp->ms_loaded = B_TRUE; 2768 } 2769 } 2770 mutex_exit(&msp->ms_lock); 2771 } 2772 } 2773 (void) fprintf(stderr, "\n"); 2774 } 2775 2776 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2777 2778 zdb_ddt_leak_init(spa, zcb); 2779 2780 spa_config_exit(spa, SCL_CONFIG, FTAG); 2781 } 2782 2783 static void 2784 zdb_leak_fini(spa_t *spa) 2785 { 2786 if (!dump_opt['L']) { 2787 vdev_t *rvd = spa->spa_root_vdev; 2788 for (int c = 0; c < rvd->vdev_children; c++) { 2789 vdev_t *vd = rvd->vdev_child[c]; 2790 metaslab_group_t *mg = vd->vdev_mg; 2791 for (int m = 0; m < vd->vdev_ms_count; m++) { 2792 metaslab_t *msp = vd->vdev_ms[m]; 2793 ASSERT3P(mg, ==, msp->ms_group); 2794 mutex_enter(&msp->ms_lock); 2795 2796 /* 2797 * The ms_tree has been overloaded to 2798 * contain allocated segments. Now that we 2799 * finished traversing all blocks, any 2800 * block that remains in the ms_tree 2801 * represents an allocated block that we 2802 * did not claim during the traversal. 2803 * Claimed blocks would have been removed 2804 * from the ms_tree. 2805 */ 2806 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2807 2808 if (msp->ms_loaded) { 2809 msp->ms_loaded = B_FALSE; 2810 } 2811 2812 mutex_exit(&msp->ms_lock); 2813 } 2814 } 2815 } 2816 } 2817 2818 /* ARGSUSED */ 2819 static int 2820 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2821 { 2822 zdb_cb_t *zcb = arg; 2823 2824 if (dump_opt['b'] >= 5) { 2825 char blkbuf[BP_SPRINTF_LEN]; 2826 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2827 (void) printf("[%s] %s\n", 2828 "deferred free", blkbuf); 2829 } 2830 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2831 return (0); 2832 } 2833 2834 static int 2835 dump_block_stats(spa_t *spa) 2836 { 2837 zdb_cb_t zcb = { 0 }; 2838 zdb_blkstats_t *zb, *tzb; 2839 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2840 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2841 boolean_t leaks = B_FALSE; 2842 2843 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2844 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2845 (dump_opt['c'] == 1) ? "metadata " : "", 2846 dump_opt['c'] ? "checksums " : "", 2847 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2848 !dump_opt['L'] ? "nothing leaked " : ""); 2849 2850 /* 2851 * Load all space maps as SM_ALLOC maps, then traverse the pool 2852 * claiming each block we discover. If the pool is perfectly 2853 * consistent, the space maps will be empty when we're done. 2854 * Anything left over is a leak; any block we can't claim (because 2855 * it's not part of any space map) is a double allocation, 2856 * reference to a freed block, or an unclaimed log block. 2857 */ 2858 zdb_leak_init(spa, &zcb); 2859 2860 /* 2861 * If there's a deferred-free bplist, process that first. 2862 */ 2863 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2864 count_block_cb, &zcb, NULL); 2865 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2866 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2867 count_block_cb, &zcb, NULL); 2868 } 2869 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2870 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2871 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2872 &zcb, NULL)); 2873 } 2874 2875 if (dump_opt['c'] > 1) 2876 flags |= TRAVERSE_PREFETCH_DATA; 2877 2878 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2879 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2880 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2881 2882 /* 2883 * If we've traversed the data blocks then we need to wait for those 2884 * I/Os to complete. We leverage "The Godfather" zio to wait on 2885 * all async I/Os to complete. 2886 */ 2887 if (dump_opt['c']) { 2888 for (int i = 0; i < max_ncpus; i++) { 2889 (void) zio_wait(spa->spa_async_zio_root[i]); 2890 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2891 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2892 ZIO_FLAG_GODFATHER); 2893 } 2894 } 2895 2896 if (zcb.zcb_haderrors) { 2897 (void) printf("\nError counts:\n\n"); 2898 (void) printf("\t%5s %s\n", "errno", "count"); 2899 for (int e = 0; e < 256; e++) { 2900 if (zcb.zcb_errors[e] != 0) { 2901 (void) printf("\t%5d %llu\n", 2902 e, (u_longlong_t)zcb.zcb_errors[e]); 2903 } 2904 } 2905 } 2906 2907 /* 2908 * Report any leaked segments. 2909 */ 2910 zdb_leak_fini(spa); 2911 2912 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2913 2914 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2915 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2916 2917 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2918 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2919 2920 if (total_found == total_alloc) { 2921 if (!dump_opt['L']) 2922 (void) printf("\n\tNo leaks (block sum matches space" 2923 " maps exactly)\n"); 2924 } else { 2925 (void) printf("block traversal size %llu != alloc %llu " 2926 "(%s %lld)\n", 2927 (u_longlong_t)total_found, 2928 (u_longlong_t)total_alloc, 2929 (dump_opt['L']) ? "unreachable" : "leaked", 2930 (longlong_t)(total_alloc - total_found)); 2931 leaks = B_TRUE; 2932 } 2933 2934 if (tzb->zb_count == 0) 2935 return (2); 2936 2937 (void) printf("\n"); 2938 (void) printf("\tbp count: %10llu\n", 2939 (u_longlong_t)tzb->zb_count); 2940 (void) printf("\tganged count: %10llu\n", 2941 (longlong_t)tzb->zb_gangs); 2942 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2943 (u_longlong_t)tzb->zb_lsize, 2944 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2945 (void) printf("\tbp physical: %10llu avg:" 2946 " %6llu compression: %6.2f\n", 2947 (u_longlong_t)tzb->zb_psize, 2948 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2949 (double)tzb->zb_lsize / tzb->zb_psize); 2950 (void) printf("\tbp allocated: %10llu avg:" 2951 " %6llu compression: %6.2f\n", 2952 (u_longlong_t)tzb->zb_asize, 2953 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2954 (double)tzb->zb_lsize / tzb->zb_asize); 2955 (void) printf("\tbp deduped: %10llu ref>1:" 2956 " %6llu deduplication: %6.2f\n", 2957 (u_longlong_t)zcb.zcb_dedup_asize, 2958 (u_longlong_t)zcb.zcb_dedup_blocks, 2959 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2960 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2961 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2962 2963 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2964 if (zcb.zcb_embedded_blocks[i] == 0) 2965 continue; 2966 (void) printf("\n"); 2967 (void) printf("\tadditional, non-pointer bps of type %u: " 2968 "%10llu\n", 2969 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2970 2971 if (dump_opt['b'] >= 3) { 2972 (void) printf("\t number of (compressed) bytes: " 2973 "number of bps\n"); 2974 dump_histogram(zcb.zcb_embedded_histogram[i], 2975 sizeof (zcb.zcb_embedded_histogram[i]) / 2976 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2977 } 2978 } 2979 2980 if (tzb->zb_ditto_samevdev != 0) { 2981 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2982 (longlong_t)tzb->zb_ditto_samevdev); 2983 } 2984 2985 if (dump_opt['b'] >= 2) { 2986 int l, t, level; 2987 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2988 "\t avg\t comp\t%%Total\tType\n"); 2989 2990 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2991 char csize[32], lsize[32], psize[32], asize[32]; 2992 char avg[32], gang[32]; 2993 char *typename; 2994 2995 if (t < DMU_OT_NUMTYPES) 2996 typename = dmu_ot[t].ot_name; 2997 else 2998 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2999 3000 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 3001 (void) printf("%6s\t%5s\t%5s\t%5s" 3002 "\t%5s\t%5s\t%6s\t%s\n", 3003 "-", 3004 "-", 3005 "-", 3006 "-", 3007 "-", 3008 "-", 3009 "-", 3010 typename); 3011 continue; 3012 } 3013 3014 for (l = ZB_TOTAL - 1; l >= -1; l--) { 3015 level = (l == -1 ? ZB_TOTAL : l); 3016 zb = &zcb.zcb_type[level][t]; 3017 3018 if (zb->zb_asize == 0) 3019 continue; 3020 3021 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 3022 continue; 3023 3024 if (level == 0 && zb->zb_asize == 3025 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 3026 continue; 3027 3028 zdb_nicenum(zb->zb_count, csize); 3029 zdb_nicenum(zb->zb_lsize, lsize); 3030 zdb_nicenum(zb->zb_psize, psize); 3031 zdb_nicenum(zb->zb_asize, asize); 3032 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 3033 zdb_nicenum(zb->zb_gangs, gang); 3034 3035 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 3036 "\t%5.2f\t%6.2f\t", 3037 csize, lsize, psize, asize, avg, 3038 (double)zb->zb_lsize / zb->zb_psize, 3039 100.0 * zb->zb_asize / tzb->zb_asize); 3040 3041 if (level == ZB_TOTAL) 3042 (void) printf("%s\n", typename); 3043 else 3044 (void) printf(" L%d %s\n", 3045 level, typename); 3046 3047 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 3048 (void) printf("\t number of ganged " 3049 "blocks: %s\n", gang); 3050 } 3051 3052 if (dump_opt['b'] >= 4) { 3053 (void) printf("psize " 3054 "(in 512-byte sectors): " 3055 "number of blocks\n"); 3056 dump_histogram(zb->zb_psize_histogram, 3057 PSIZE_HISTO_SIZE, 0); 3058 } 3059 } 3060 } 3061 } 3062 3063 (void) printf("\n"); 3064 3065 if (leaks) 3066 return (2); 3067 3068 if (zcb.zcb_haderrors) 3069 return (3); 3070 3071 return (0); 3072 } 3073 3074 typedef struct zdb_ddt_entry { 3075 ddt_key_t zdde_key; 3076 uint64_t zdde_ref_blocks; 3077 uint64_t zdde_ref_lsize; 3078 uint64_t zdde_ref_psize; 3079 uint64_t zdde_ref_dsize; 3080 avl_node_t zdde_node; 3081 } zdb_ddt_entry_t; 3082 3083 /* ARGSUSED */ 3084 static int 3085 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 3086 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 3087 { 3088 avl_tree_t *t = arg; 3089 avl_index_t where; 3090 zdb_ddt_entry_t *zdde, zdde_search; 3091 3092 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 3093 return (0); 3094 3095 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 3096 (void) printf("traversing objset %llu, %llu objects, " 3097 "%lu blocks so far\n", 3098 (u_longlong_t)zb->zb_objset, 3099 (u_longlong_t)BP_GET_FILL(bp), 3100 avl_numnodes(t)); 3101 } 3102 3103 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 3104 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 3105 return (0); 3106 3107 ddt_key_fill(&zdde_search.zdde_key, bp); 3108 3109 zdde = avl_find(t, &zdde_search, &where); 3110 3111 if (zdde == NULL) { 3112 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 3113 zdde->zdde_key = zdde_search.zdde_key; 3114 avl_insert(t, zdde, where); 3115 } 3116 3117 zdde->zdde_ref_blocks += 1; 3118 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 3119 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 3120 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 3121 3122 return (0); 3123 } 3124 3125 static void 3126 dump_simulated_ddt(spa_t *spa) 3127 { 3128 avl_tree_t t; 3129 void *cookie = NULL; 3130 zdb_ddt_entry_t *zdde; 3131 ddt_histogram_t ddh_total = { 0 }; 3132 ddt_stat_t dds_total = { 0 }; 3133 3134 avl_create(&t, ddt_entry_compare, 3135 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 3136 3137 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3138 3139 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 3140 zdb_ddt_add_cb, &t); 3141 3142 spa_config_exit(spa, SCL_CONFIG, FTAG); 3143 3144 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 3145 ddt_stat_t dds; 3146 uint64_t refcnt = zdde->zdde_ref_blocks; 3147 ASSERT(refcnt != 0); 3148 3149 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 3150 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 3151 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 3152 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 3153 3154 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 3155 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 3156 dds.dds_ref_psize = zdde->zdde_ref_psize; 3157 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 3158 3159 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 3160 &dds, 0); 3161 3162 umem_free(zdde, sizeof (*zdde)); 3163 } 3164 3165 avl_destroy(&t); 3166 3167 ddt_histogram_stat(&dds_total, &ddh_total); 3168 3169 (void) printf("Simulated DDT histogram:\n"); 3170 3171 zpool_dump_ddt(&dds_total, &ddh_total); 3172 3173 dump_dedup_ratio(&dds_total); 3174 } 3175 3176 static void 3177 dump_zpool(spa_t *spa) 3178 { 3179 dsl_pool_t *dp = spa_get_dsl(spa); 3180 int rc = 0; 3181 3182 if (dump_opt['S']) { 3183 dump_simulated_ddt(spa); 3184 return; 3185 } 3186 3187 if (!dump_opt['e'] && dump_opt['C'] > 1) { 3188 (void) printf("\nCached configuration:\n"); 3189 dump_nvlist(spa->spa_config, 8); 3190 } 3191 3192 if (dump_opt['C']) 3193 dump_config(spa); 3194 3195 if (dump_opt['u']) 3196 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 3197 3198 if (dump_opt['D']) 3199 dump_all_ddts(spa); 3200 3201 if (dump_opt['d'] > 2 || dump_opt['m']) 3202 dump_metaslabs(spa); 3203 if (dump_opt['M']) 3204 dump_metaslab_groups(spa); 3205 3206 if (dump_opt['d'] || dump_opt['i']) { 3207 dump_dir(dp->dp_meta_objset); 3208 if (dump_opt['d'] >= 3) { 3209 dump_full_bpobj(&spa->spa_deferred_bpobj, 3210 "Deferred frees", 0); 3211 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 3212 dump_full_bpobj( 3213 &spa->spa_dsl_pool->dp_free_bpobj, 3214 "Pool snapshot frees", 0); 3215 } 3216 3217 if (spa_feature_is_active(spa, 3218 SPA_FEATURE_ASYNC_DESTROY)) { 3219 dump_bptree(spa->spa_meta_objset, 3220 spa->spa_dsl_pool->dp_bptree_obj, 3221 "Pool dataset frees"); 3222 } 3223 dump_dtl(spa->spa_root_vdev, 0); 3224 } 3225 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 3226 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 3227 3228 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 3229 uint64_t refcount; 3230 3231 if (!(spa_feature_table[f].fi_flags & 3232 ZFEATURE_FLAG_PER_DATASET) || 3233 !spa_feature_is_enabled(spa, f)) { 3234 ASSERT0(dataset_feature_count[f]); 3235 continue; 3236 } 3237 (void) feature_get_refcount(spa, 3238 &spa_feature_table[f], &refcount); 3239 if (dataset_feature_count[f] != refcount) { 3240 (void) printf("%s feature refcount mismatch: " 3241 "%lld datasets != %lld refcount\n", 3242 spa_feature_table[f].fi_uname, 3243 (longlong_t)dataset_feature_count[f], 3244 (longlong_t)refcount); 3245 rc = 2; 3246 } else { 3247 (void) printf("Verified %s feature refcount " 3248 "of %llu is correct\n", 3249 spa_feature_table[f].fi_uname, 3250 (longlong_t)refcount); 3251 } 3252 } 3253 } 3254 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 3255 rc = dump_block_stats(spa); 3256 3257 if (rc == 0) 3258 rc = verify_spacemap_refcounts(spa); 3259 3260 if (dump_opt['s']) 3261 show_pool_stats(spa); 3262 3263 if (dump_opt['h']) 3264 dump_history(spa); 3265 3266 if (rc != 0) { 3267 dump_debug_buffer(); 3268 exit(rc); 3269 } 3270 } 3271 3272 #define ZDB_FLAG_CHECKSUM 0x0001 3273 #define ZDB_FLAG_DECOMPRESS 0x0002 3274 #define ZDB_FLAG_BSWAP 0x0004 3275 #define ZDB_FLAG_GBH 0x0008 3276 #define ZDB_FLAG_INDIRECT 0x0010 3277 #define ZDB_FLAG_PHYS 0x0020 3278 #define ZDB_FLAG_RAW 0x0040 3279 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 3280 3281 int flagbits[256]; 3282 3283 static void 3284 zdb_print_blkptr(blkptr_t *bp, int flags) 3285 { 3286 char blkbuf[BP_SPRINTF_LEN]; 3287 3288 if (flags & ZDB_FLAG_BSWAP) 3289 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 3290 3291 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3292 (void) printf("%s\n", blkbuf); 3293 } 3294 3295 static void 3296 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 3297 { 3298 int i; 3299 3300 for (i = 0; i < nbps; i++) 3301 zdb_print_blkptr(&bp[i], flags); 3302 } 3303 3304 static void 3305 zdb_dump_gbh(void *buf, int flags) 3306 { 3307 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 3308 } 3309 3310 static void 3311 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 3312 { 3313 if (flags & ZDB_FLAG_BSWAP) 3314 byteswap_uint64_array(buf, size); 3315 (void) write(1, buf, size); 3316 } 3317 3318 static void 3319 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 3320 { 3321 uint64_t *d = (uint64_t *)buf; 3322 int nwords = size / sizeof (uint64_t); 3323 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 3324 int i, j; 3325 char *hdr, *c; 3326 3327 3328 if (do_bswap) 3329 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 3330 else 3331 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3332 3333 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3334 3335 for (i = 0; i < nwords; i += 2) { 3336 (void) printf("%06llx: %016llx %016llx ", 3337 (u_longlong_t)(i * sizeof (uint64_t)), 3338 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3339 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3340 3341 c = (char *)&d[i]; 3342 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3343 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3344 (void) printf("\n"); 3345 } 3346 } 3347 3348 /* 3349 * There are two acceptable formats: 3350 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3351 * child[.child]* - For example: 0.1.1 3352 * 3353 * The second form can be used to specify arbitrary vdevs anywhere 3354 * in the heirarchy. For example, in a pool with a mirror of 3355 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3356 */ 3357 static vdev_t * 3358 zdb_vdev_lookup(vdev_t *vdev, char *path) 3359 { 3360 char *s, *p, *q; 3361 int i; 3362 3363 if (vdev == NULL) 3364 return (NULL); 3365 3366 /* First, assume the x.x.x.x format */ 3367 i = (int)strtoul(path, &s, 10); 3368 if (s == path || (s && *s != '.' && *s != '\0')) 3369 goto name; 3370 if (i < 0 || i >= vdev->vdev_children) 3371 return (NULL); 3372 3373 vdev = vdev->vdev_child[i]; 3374 if (*s == '\0') 3375 return (vdev); 3376 return (zdb_vdev_lookup(vdev, s+1)); 3377 3378 name: 3379 for (i = 0; i < vdev->vdev_children; i++) { 3380 vdev_t *vc = vdev->vdev_child[i]; 3381 3382 if (vc->vdev_path == NULL) { 3383 vc = zdb_vdev_lookup(vc, path); 3384 if (vc == NULL) 3385 continue; 3386 else 3387 return (vc); 3388 } 3389 3390 p = strrchr(vc->vdev_path, '/'); 3391 p = p ? p + 1 : vc->vdev_path; 3392 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3393 3394 if (strcmp(vc->vdev_path, path) == 0) 3395 return (vc); 3396 if (strcmp(p, path) == 0) 3397 return (vc); 3398 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3399 return (vc); 3400 } 3401 3402 return (NULL); 3403 } 3404 3405 /* ARGSUSED */ 3406 static int 3407 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused) 3408 { 3409 return (random_get_pseudo_bytes(buf, len)); 3410 } 3411 3412 /* 3413 * Read a block from a pool and print it out. The syntax of the 3414 * block descriptor is: 3415 * 3416 * pool:vdev_specifier:offset:size[:flags] 3417 * 3418 * pool - The name of the pool you wish to read from 3419 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3420 * offset - offset, in hex, in bytes 3421 * size - Amount of data to read, in hex, in bytes 3422 * flags - A string of characters specifying options 3423 * b: Decode a blkptr at given offset within block 3424 * *c: Calculate and display checksums 3425 * d: Decompress data before dumping 3426 * e: Byteswap data before dumping 3427 * g: Display data as a gang block header 3428 * i: Display as an indirect block 3429 * p: Do I/O to physical offset 3430 * r: Dump raw data to stdout 3431 * 3432 * * = not yet implemented 3433 */ 3434 static void 3435 zdb_read_block(char *thing, spa_t *spa) 3436 { 3437 blkptr_t blk, *bp = &blk; 3438 dva_t *dva = bp->blk_dva; 3439 int flags = 0; 3440 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3441 zio_t *zio; 3442 vdev_t *vd; 3443 abd_t *pabd; 3444 void *lbuf, *buf; 3445 char *s, *p, *dup, *vdev, *flagstr; 3446 int i, error; 3447 3448 dup = strdup(thing); 3449 s = strtok(dup, ":"); 3450 vdev = s ? s : ""; 3451 s = strtok(NULL, ":"); 3452 offset = strtoull(s ? s : "", NULL, 16); 3453 s = strtok(NULL, ":"); 3454 size = strtoull(s ? s : "", NULL, 16); 3455 s = strtok(NULL, ":"); 3456 flagstr = s ? s : ""; 3457 3458 s = NULL; 3459 if (size == 0) 3460 s = "size must not be zero"; 3461 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3462 s = "size must be a multiple of sector size"; 3463 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3464 s = "offset must be a multiple of sector size"; 3465 if (s) { 3466 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3467 free(dup); 3468 return; 3469 } 3470 3471 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3472 for (i = 0; flagstr[i]; i++) { 3473 int bit = flagbits[(uchar_t)flagstr[i]]; 3474 3475 if (bit == 0) { 3476 (void) printf("***Invalid flag: %c\n", 3477 flagstr[i]); 3478 continue; 3479 } 3480 flags |= bit; 3481 3482 /* If it's not something with an argument, keep going */ 3483 if ((bit & (ZDB_FLAG_CHECKSUM | 3484 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3485 continue; 3486 3487 p = &flagstr[i + 1]; 3488 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3489 blkptr_offset = strtoull(p, &p, 16); 3490 if (*p != ':' && *p != '\0') { 3491 (void) printf("***Invalid flag arg: '%s'\n", s); 3492 free(dup); 3493 return; 3494 } 3495 } 3496 } 3497 3498 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3499 if (vd == NULL) { 3500 (void) printf("***Invalid vdev: %s\n", vdev); 3501 free(dup); 3502 return; 3503 } else { 3504 if (vd->vdev_path) 3505 (void) fprintf(stderr, "Found vdev: %s\n", 3506 vd->vdev_path); 3507 else 3508 (void) fprintf(stderr, "Found vdev type: %s\n", 3509 vd->vdev_ops->vdev_op_type); 3510 } 3511 3512 psize = size; 3513 lsize = size; 3514 3515 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE); 3516 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3517 3518 BP_ZERO(bp); 3519 3520 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3521 DVA_SET_OFFSET(&dva[0], offset); 3522 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3523 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3524 3525 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3526 3527 BP_SET_LSIZE(bp, lsize); 3528 BP_SET_PSIZE(bp, psize); 3529 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3530 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3531 BP_SET_TYPE(bp, DMU_OT_NONE); 3532 BP_SET_LEVEL(bp, 0); 3533 BP_SET_DEDUP(bp, 0); 3534 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3535 3536 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3537 zio = zio_root(spa, NULL, NULL, 0); 3538 3539 if (vd == vd->vdev_top) { 3540 /* 3541 * Treat this as a normal block read. 3542 */ 3543 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL, 3544 ZIO_PRIORITY_SYNC_READ, 3545 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3546 } else { 3547 /* 3548 * Treat this as a vdev child I/O. 3549 */ 3550 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd, 3551 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3552 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3553 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3554 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3555 } 3556 3557 error = zio_wait(zio); 3558 spa_config_exit(spa, SCL_STATE, FTAG); 3559 3560 if (error) { 3561 (void) printf("Read of %s failed, error: %d\n", thing, error); 3562 goto out; 3563 } 3564 3565 if (flags & ZDB_FLAG_DECOMPRESS) { 3566 /* 3567 * We don't know how the data was compressed, so just try 3568 * every decompress function at every inflated blocksize. 3569 */ 3570 enum zio_compress c; 3571 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3572 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3573 3574 abd_copy_to_buf(pbuf2, pabd, psize); 3575 3576 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize, 3577 random_get_pseudo_bytes_cb, NULL)); 3578 3579 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3580 SPA_MAXBLOCKSIZE - psize)); 3581 3582 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3583 lsize -= SPA_MINBLOCKSIZE) { 3584 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3585 if (zio_decompress_data(c, pabd, 3586 lbuf, psize, lsize) == 0 && 3587 zio_decompress_data_buf(c, pbuf2, 3588 lbuf2, psize, lsize) == 0 && 3589 bcmp(lbuf, lbuf2, lsize) == 0) 3590 break; 3591 } 3592 if (c != ZIO_COMPRESS_FUNCTIONS) 3593 break; 3594 lsize -= SPA_MINBLOCKSIZE; 3595 } 3596 3597 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3598 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3599 3600 if (lsize <= psize) { 3601 (void) printf("Decompress of %s failed\n", thing); 3602 goto out; 3603 } 3604 buf = lbuf; 3605 size = lsize; 3606 } else { 3607 buf = abd_to_buf(pabd); 3608 size = psize; 3609 } 3610 3611 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3612 zdb_print_blkptr((blkptr_t *)(void *) 3613 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3614 else if (flags & ZDB_FLAG_RAW) 3615 zdb_dump_block_raw(buf, size, flags); 3616 else if (flags & ZDB_FLAG_INDIRECT) 3617 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3618 flags); 3619 else if (flags & ZDB_FLAG_GBH) 3620 zdb_dump_gbh(buf, flags); 3621 else 3622 zdb_dump_block(thing, buf, size, flags); 3623 3624 out: 3625 abd_free(pabd); 3626 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3627 free(dup); 3628 } 3629 3630 static void 3631 zdb_embedded_block(char *thing) 3632 { 3633 blkptr_t bp = { 0 }; 3634 unsigned long long *words = (void *)&bp; 3635 char buf[SPA_MAXBLOCKSIZE]; 3636 int err; 3637 3638 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:" 3639 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx", 3640 words + 0, words + 1, words + 2, words + 3, 3641 words + 4, words + 5, words + 6, words + 7, 3642 words + 8, words + 9, words + 10, words + 11, 3643 words + 12, words + 13, words + 14, words + 15); 3644 if (err != 16) { 3645 (void) printf("invalid input format\n"); 3646 exit(1); 3647 } 3648 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE); 3649 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp)); 3650 if (err != 0) { 3651 (void) printf("decode failed: %u\n", err); 3652 exit(1); 3653 } 3654 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0); 3655 } 3656 3657 static boolean_t 3658 pool_match(nvlist_t *cfg, char *tgt) 3659 { 3660 uint64_t v, guid = strtoull(tgt, NULL, 0); 3661 char *s; 3662 3663 if (guid != 0) { 3664 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3665 return (v == guid); 3666 } else { 3667 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3668 return (strcmp(s, tgt) == 0); 3669 } 3670 return (B_FALSE); 3671 } 3672 3673 static char * 3674 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3675 { 3676 nvlist_t *pools; 3677 nvlist_t *match = NULL; 3678 char *name = NULL; 3679 char *sepp = NULL; 3680 char sep = '\0'; 3681 int count = 0; 3682 importargs_t args = { 0 }; 3683 3684 args.paths = dirc; 3685 args.path = dirv; 3686 args.can_be_active = B_TRUE; 3687 3688 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3689 sep = *sepp; 3690 *sepp = '\0'; 3691 } 3692 3693 pools = zpool_search_import(g_zfs, &args); 3694 3695 if (pools != NULL) { 3696 nvpair_t *elem = NULL; 3697 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3698 verify(nvpair_value_nvlist(elem, configp) == 0); 3699 if (pool_match(*configp, *target)) { 3700 count++; 3701 if (match != NULL) { 3702 /* print previously found config */ 3703 if (name != NULL) { 3704 (void) printf("%s\n", name); 3705 dump_nvlist(match, 8); 3706 name = NULL; 3707 } 3708 (void) printf("%s\n", 3709 nvpair_name(elem)); 3710 dump_nvlist(*configp, 8); 3711 } else { 3712 match = *configp; 3713 name = nvpair_name(elem); 3714 } 3715 } 3716 } 3717 } 3718 if (count > 1) 3719 (void) fatal("\tMatched %d pools - use pool GUID " 3720 "instead of pool name or \n" 3721 "\tpool name part of a dataset name to select pool", count); 3722 3723 if (sepp) 3724 *sepp = sep; 3725 /* 3726 * If pool GUID was specified for pool id, replace it with pool name 3727 */ 3728 if (name && (strstr(*target, name) != *target)) { 3729 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3730 3731 *target = umem_alloc(sz, UMEM_NOFAIL); 3732 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3733 } 3734 3735 *configp = name ? match : NULL; 3736 3737 return (name); 3738 } 3739 3740 int 3741 main(int argc, char **argv) 3742 { 3743 int i, c; 3744 struct rlimit rl = { 1024, 1024 }; 3745 spa_t *spa = NULL; 3746 objset_t *os = NULL; 3747 int dump_all = 1; 3748 int verbose = 0; 3749 int error = 0; 3750 char **searchdirs = NULL; 3751 int nsearch = 0; 3752 char *target; 3753 nvlist_t *policy = NULL; 3754 uint64_t max_txg = UINT64_MAX; 3755 int flags = ZFS_IMPORT_MISSING_LOG; 3756 int rewind = ZPOOL_NEVER_REWIND; 3757 char *spa_config_path_env; 3758 boolean_t target_is_spa = B_TRUE; 3759 3760 (void) setrlimit(RLIMIT_NOFILE, &rl); 3761 (void) enable_extended_FILE_stdio(-1, -1); 3762 3763 dprintf_setup(&argc, argv); 3764 3765 /* 3766 * If there is an environment variable SPA_CONFIG_PATH it overrides 3767 * default spa_config_path setting. If -U flag is specified it will 3768 * override this environment variable settings once again. 3769 */ 3770 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 3771 if (spa_config_path_env != NULL) 3772 spa_config_path = spa_config_path_env; 3773 3774 while ((c = getopt(argc, argv, 3775 "AbcCdDeEFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) { 3776 switch (c) { 3777 case 'b': 3778 case 'c': 3779 case 'C': 3780 case 'd': 3781 case 'D': 3782 case 'E': 3783 case 'G': 3784 case 'h': 3785 case 'i': 3786 case 'l': 3787 case 'm': 3788 case 'M': 3789 case 'O': 3790 case 'R': 3791 case 's': 3792 case 'S': 3793 case 'u': 3794 dump_opt[c]++; 3795 dump_all = 0; 3796 break; 3797 case 'A': 3798 case 'e': 3799 case 'F': 3800 case 'L': 3801 case 'P': 3802 case 'q': 3803 case 'X': 3804 dump_opt[c]++; 3805 break; 3806 /* NB: Sort single match options below. */ 3807 case 'I': 3808 max_inflight = strtoull(optarg, NULL, 0); 3809 if (max_inflight == 0) { 3810 (void) fprintf(stderr, "maximum number " 3811 "of inflight I/Os must be greater " 3812 "than 0\n"); 3813 usage(); 3814 } 3815 break; 3816 case 'o': 3817 error = set_global_var(optarg); 3818 if (error != 0) 3819 usage(); 3820 break; 3821 case 'p': 3822 if (searchdirs == NULL) { 3823 searchdirs = umem_alloc(sizeof (char *), 3824 UMEM_NOFAIL); 3825 } else { 3826 char **tmp = umem_alloc((nsearch + 1) * 3827 sizeof (char *), UMEM_NOFAIL); 3828 bcopy(searchdirs, tmp, nsearch * 3829 sizeof (char *)); 3830 umem_free(searchdirs, 3831 nsearch * sizeof (char *)); 3832 searchdirs = tmp; 3833 } 3834 searchdirs[nsearch++] = optarg; 3835 break; 3836 case 't': 3837 max_txg = strtoull(optarg, NULL, 0); 3838 if (max_txg < TXG_INITIAL) { 3839 (void) fprintf(stderr, "incorrect txg " 3840 "specified: %s\n", optarg); 3841 usage(); 3842 } 3843 break; 3844 case 'U': 3845 spa_config_path = optarg; 3846 if (spa_config_path[0] != '/') { 3847 (void) fprintf(stderr, 3848 "cachefile must be an absolute path " 3849 "(i.e. start with a slash)\n"); 3850 usage(); 3851 } 3852 break; 3853 case 'v': 3854 verbose++; 3855 break; 3856 case 'V': 3857 flags = ZFS_IMPORT_VERBATIM; 3858 break; 3859 case 'x': 3860 vn_dumpdir = optarg; 3861 break; 3862 default: 3863 usage(); 3864 break; 3865 } 3866 } 3867 3868 if (!dump_opt['e'] && searchdirs != NULL) { 3869 (void) fprintf(stderr, "-p option requires use of -e\n"); 3870 usage(); 3871 } 3872 3873 /* 3874 * ZDB does not typically re-read blocks; therefore limit the ARC 3875 * to 256 MB, which can be used entirely for metadata. 3876 */ 3877 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 3878 3879 /* 3880 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 3881 * "zdb -b" uses traversal prefetch which uses async reads. 3882 * For good performance, let several of them be active at once. 3883 */ 3884 zfs_vdev_async_read_max_active = 10; 3885 3886 /* 3887 * Disable reference tracking for better performance. 3888 */ 3889 reference_tracking_enable = B_FALSE; 3890 3891 kernel_init(FREAD); 3892 g_zfs = libzfs_init(); 3893 ASSERT(g_zfs != NULL); 3894 3895 if (dump_all) 3896 verbose = MAX(verbose, 1); 3897 3898 for (c = 0; c < 256; c++) { 3899 if (dump_all && strchr("AeEFlLOPRSX", c) == NULL) 3900 dump_opt[c] = 1; 3901 if (dump_opt[c]) 3902 dump_opt[c] += verbose; 3903 } 3904 3905 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3906 zfs_recover = (dump_opt['A'] > 1); 3907 3908 argc -= optind; 3909 argv += optind; 3910 3911 if (argc < 2 && dump_opt['R']) 3912 usage(); 3913 3914 if (dump_opt['E']) { 3915 if (argc != 1) 3916 usage(); 3917 zdb_embedded_block(argv[0]); 3918 return (0); 3919 } 3920 3921 if (argc < 1) { 3922 if (!dump_opt['e'] && dump_opt['C']) { 3923 dump_cachefile(spa_config_path); 3924 return (0); 3925 } 3926 usage(); 3927 } 3928 3929 if (dump_opt['l']) 3930 return (dump_label(argv[0])); 3931 3932 if (dump_opt['O']) { 3933 if (argc != 2) 3934 usage(); 3935 dump_opt['v'] = verbose + 3; 3936 return (dump_path(argv[0], argv[1])); 3937 } 3938 3939 if (dump_opt['X'] || dump_opt['F']) 3940 rewind = ZPOOL_DO_REWIND | 3941 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3942 3943 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3944 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3945 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3946 fatal("internal error: %s", strerror(ENOMEM)); 3947 3948 error = 0; 3949 target = argv[0]; 3950 3951 if (dump_opt['e']) { 3952 nvlist_t *cfg = NULL; 3953 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3954 3955 error = ENOENT; 3956 if (name) { 3957 if (dump_opt['C'] > 1) { 3958 (void) printf("\nConfiguration for import:\n"); 3959 dump_nvlist(cfg, 8); 3960 } 3961 if (nvlist_add_nvlist(cfg, 3962 ZPOOL_REWIND_POLICY, policy) != 0) { 3963 fatal("can't open '%s': %s", 3964 target, strerror(ENOMEM)); 3965 } 3966 error = spa_import(name, cfg, NULL, flags); 3967 } 3968 } 3969 3970 if (strpbrk(target, "/@") != NULL) { 3971 size_t targetlen; 3972 3973 target_is_spa = B_FALSE; 3974 /* 3975 * Remove any trailing slash. Later code would get confused 3976 * by it, but we want to allow it so that "pool/" can 3977 * indicate that we want to dump the topmost filesystem, 3978 * rather than the whole pool. 3979 */ 3980 targetlen = strlen(target); 3981 if (targetlen != 0 && target[targetlen - 1] == '/') 3982 target[targetlen - 1] = '\0'; 3983 } 3984 3985 if (error == 0) { 3986 if (target_is_spa || dump_opt['R']) { 3987 error = spa_open_rewind(target, &spa, FTAG, policy, 3988 NULL); 3989 if (error) { 3990 /* 3991 * If we're missing the log device then 3992 * try opening the pool after clearing the 3993 * log state. 3994 */ 3995 mutex_enter(&spa_namespace_lock); 3996 if ((spa = spa_lookup(target)) != NULL && 3997 spa->spa_log_state == SPA_LOG_MISSING) { 3998 spa->spa_log_state = SPA_LOG_CLEAR; 3999 error = 0; 4000 } 4001 mutex_exit(&spa_namespace_lock); 4002 4003 if (!error) { 4004 error = spa_open_rewind(target, &spa, 4005 FTAG, policy, NULL); 4006 } 4007 } 4008 } else { 4009 error = open_objset(target, DMU_OST_ANY, FTAG, &os); 4010 } 4011 } 4012 nvlist_free(policy); 4013 4014 if (error) 4015 fatal("can't open '%s': %s", target, strerror(error)); 4016 4017 argv++; 4018 argc--; 4019 if (!dump_opt['R']) { 4020 if (argc > 0) { 4021 zopt_objects = argc; 4022 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 4023 for (i = 0; i < zopt_objects; i++) { 4024 errno = 0; 4025 zopt_object[i] = strtoull(argv[i], NULL, 0); 4026 if (zopt_object[i] == 0 && errno != 0) 4027 fatal("bad number %s: %s", 4028 argv[i], strerror(errno)); 4029 } 4030 } 4031 if (os != NULL) { 4032 dump_dir(os); 4033 } else if (zopt_objects > 0 && !dump_opt['m']) { 4034 dump_dir(spa->spa_meta_objset); 4035 } else { 4036 dump_zpool(spa); 4037 } 4038 } else { 4039 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 4040 flagbits['c'] = ZDB_FLAG_CHECKSUM; 4041 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 4042 flagbits['e'] = ZDB_FLAG_BSWAP; 4043 flagbits['g'] = ZDB_FLAG_GBH; 4044 flagbits['i'] = ZDB_FLAG_INDIRECT; 4045 flagbits['p'] = ZDB_FLAG_PHYS; 4046 flagbits['r'] = ZDB_FLAG_RAW; 4047 4048 for (i = 0; i < argc; i++) 4049 zdb_read_block(argv[i], spa); 4050 } 4051 4052 if (os != NULL) 4053 close_objset(os, FTAG); 4054 else 4055 spa_close(spa, FTAG); 4056 4057 fuid_table_destroy(); 4058 4059 dump_debug_buffer(); 4060 4061 libzfs_fini(g_zfs); 4062 kernel_fini(); 4063 4064 return (0); 4065 } 4066