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 && 2309 (s = strchr(dev, 'p')) == NULL) || 2310 !isdigit(*(s + 1))) 2311 (void) strlcat(path, "s0", sizeof (path)); 2312 } 2313 2314 if ((fd = open64(path, O_RDONLY)) < 0) { 2315 (void) fprintf(stderr, "cannot open '%s': %s\n", path, 2316 strerror(errno)); 2317 exit(1); 2318 } 2319 2320 if (fstat64(fd, &statbuf) != 0) { 2321 (void) fprintf(stderr, "failed to stat '%s': %s\n", path, 2322 strerror(errno)); 2323 (void) close(fd); 2324 exit(1); 2325 } 2326 2327 if (S_ISBLK(statbuf.st_mode)) { 2328 (void) fprintf(stderr, 2329 "cannot use '%s': character device required\n", path); 2330 (void) close(fd); 2331 exit(1); 2332 } 2333 2334 psize = statbuf.st_size; 2335 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2336 2337 for (int l = 0; l < VDEV_LABELS; l++) { 2338 nvlist_t *config = NULL; 2339 2340 if (!dump_opt['q']) { 2341 (void) printf("------------------------------------\n"); 2342 (void) printf("LABEL %d\n", l); 2343 (void) printf("------------------------------------\n"); 2344 } 2345 2346 if (pread64(fd, &label, sizeof (label), 2347 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2348 if (!dump_opt['q']) 2349 (void) printf("failed to read label %d\n", l); 2350 continue; 2351 } 2352 2353 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2354 if (!dump_opt['q']) 2355 (void) printf("failed to unpack label %d\n", l); 2356 ashift = SPA_MINBLOCKSHIFT; 2357 } else { 2358 nvlist_t *vdev_tree = NULL; 2359 2360 if (!dump_opt['q']) 2361 dump_nvlist(config, 4); 2362 if ((nvlist_lookup_nvlist(config, 2363 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2364 (nvlist_lookup_uint64(vdev_tree, 2365 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2366 ashift = SPA_MINBLOCKSHIFT; 2367 nvlist_free(config); 2368 label_found = B_TRUE; 2369 } 2370 if (dump_opt['u']) 2371 dump_label_uberblocks(&label, ashift); 2372 } 2373 2374 (void) close(fd); 2375 2376 return (label_found ? 0 : 2); 2377 } 2378 2379 static uint64_t dataset_feature_count[SPA_FEATURES]; 2380 2381 /*ARGSUSED*/ 2382 static int 2383 dump_one_dir(const char *dsname, void *arg) 2384 { 2385 int error; 2386 objset_t *os; 2387 2388 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os); 2389 if (error != 0) 2390 return (0); 2391 2392 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2393 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2394 continue; 2395 ASSERT(spa_feature_table[f].fi_flags & 2396 ZFEATURE_FLAG_PER_DATASET); 2397 dataset_feature_count[f]++; 2398 } 2399 2400 dump_dir(os); 2401 close_objset(os, FTAG); 2402 fuid_table_destroy(); 2403 return (0); 2404 } 2405 2406 /* 2407 * Block statistics. 2408 */ 2409 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2410 typedef struct zdb_blkstats { 2411 uint64_t zb_asize; 2412 uint64_t zb_lsize; 2413 uint64_t zb_psize; 2414 uint64_t zb_count; 2415 uint64_t zb_gangs; 2416 uint64_t zb_ditto_samevdev; 2417 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2418 } zdb_blkstats_t; 2419 2420 /* 2421 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2422 */ 2423 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2424 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2425 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2426 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2427 2428 static char *zdb_ot_extname[] = { 2429 "deferred free", 2430 "dedup ditto", 2431 "other", 2432 "Total", 2433 }; 2434 2435 #define ZB_TOTAL DN_MAX_LEVELS 2436 2437 typedef struct zdb_cb { 2438 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2439 uint64_t zcb_dedup_asize; 2440 uint64_t zcb_dedup_blocks; 2441 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2442 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2443 [BPE_PAYLOAD_SIZE]; 2444 uint64_t zcb_start; 2445 uint64_t zcb_lastprint; 2446 uint64_t zcb_totalasize; 2447 uint64_t zcb_errors[256]; 2448 int zcb_readfails; 2449 int zcb_haderrors; 2450 spa_t *zcb_spa; 2451 } zdb_cb_t; 2452 2453 static void 2454 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2455 dmu_object_type_t type) 2456 { 2457 uint64_t refcnt = 0; 2458 2459 ASSERT(type < ZDB_OT_TOTAL); 2460 2461 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2462 return; 2463 2464 for (int i = 0; i < 4; i++) { 2465 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2466 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2467 int equal; 2468 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2469 2470 zb->zb_asize += BP_GET_ASIZE(bp); 2471 zb->zb_lsize += BP_GET_LSIZE(bp); 2472 zb->zb_psize += BP_GET_PSIZE(bp); 2473 zb->zb_count++; 2474 2475 /* 2476 * The histogram is only big enough to record blocks up to 2477 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2478 * "other", bucket. 2479 */ 2480 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2481 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2482 zb->zb_psize_histogram[idx]++; 2483 2484 zb->zb_gangs += BP_COUNT_GANG(bp); 2485 2486 switch (BP_GET_NDVAS(bp)) { 2487 case 2: 2488 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2489 DVA_GET_VDEV(&bp->blk_dva[1])) 2490 zb->zb_ditto_samevdev++; 2491 break; 2492 case 3: 2493 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2494 DVA_GET_VDEV(&bp->blk_dva[1])) + 2495 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2496 DVA_GET_VDEV(&bp->blk_dva[2])) + 2497 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2498 DVA_GET_VDEV(&bp->blk_dva[2])); 2499 if (equal != 0) 2500 zb->zb_ditto_samevdev++; 2501 break; 2502 } 2503 2504 } 2505 2506 if (BP_IS_EMBEDDED(bp)) { 2507 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2508 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2509 [BPE_GET_PSIZE(bp)]++; 2510 return; 2511 } 2512 2513 if (dump_opt['L']) 2514 return; 2515 2516 if (BP_GET_DEDUP(bp)) { 2517 ddt_t *ddt; 2518 ddt_entry_t *dde; 2519 2520 ddt = ddt_select(zcb->zcb_spa, bp); 2521 ddt_enter(ddt); 2522 dde = ddt_lookup(ddt, bp, B_FALSE); 2523 2524 if (dde == NULL) { 2525 refcnt = 0; 2526 } else { 2527 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2528 ddt_phys_decref(ddp); 2529 refcnt = ddp->ddp_refcnt; 2530 if (ddt_phys_total_refcnt(dde) == 0) 2531 ddt_remove(ddt, dde); 2532 } 2533 ddt_exit(ddt); 2534 } 2535 2536 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2537 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2538 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2539 } 2540 2541 static void 2542 zdb_blkptr_done(zio_t *zio) 2543 { 2544 spa_t *spa = zio->io_spa; 2545 blkptr_t *bp = zio->io_bp; 2546 int ioerr = zio->io_error; 2547 zdb_cb_t *zcb = zio->io_private; 2548 zbookmark_phys_t *zb = &zio->io_bookmark; 2549 2550 abd_free(zio->io_abd); 2551 2552 mutex_enter(&spa->spa_scrub_lock); 2553 spa->spa_scrub_inflight--; 2554 cv_broadcast(&spa->spa_scrub_io_cv); 2555 2556 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2557 char blkbuf[BP_SPRINTF_LEN]; 2558 2559 zcb->zcb_haderrors = 1; 2560 zcb->zcb_errors[ioerr]++; 2561 2562 if (dump_opt['b'] >= 2) 2563 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2564 else 2565 blkbuf[0] = '\0'; 2566 2567 (void) printf("zdb_blkptr_cb: " 2568 "Got error %d reading " 2569 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2570 ioerr, 2571 (u_longlong_t)zb->zb_objset, 2572 (u_longlong_t)zb->zb_object, 2573 (u_longlong_t)zb->zb_level, 2574 (u_longlong_t)zb->zb_blkid, 2575 blkbuf); 2576 } 2577 mutex_exit(&spa->spa_scrub_lock); 2578 } 2579 2580 static int 2581 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2582 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2583 { 2584 zdb_cb_t *zcb = arg; 2585 dmu_object_type_t type; 2586 boolean_t is_metadata; 2587 2588 if (bp == NULL) 2589 return (0); 2590 2591 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2592 char blkbuf[BP_SPRINTF_LEN]; 2593 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2594 (void) printf("objset %llu object %llu " 2595 "level %lld offset 0x%llx %s\n", 2596 (u_longlong_t)zb->zb_objset, 2597 (u_longlong_t)zb->zb_object, 2598 (longlong_t)zb->zb_level, 2599 (u_longlong_t)blkid2offset(dnp, bp, zb), 2600 blkbuf); 2601 } 2602 2603 if (BP_IS_HOLE(bp)) 2604 return (0); 2605 2606 type = BP_GET_TYPE(bp); 2607 2608 zdb_count_block(zcb, zilog, bp, 2609 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2610 2611 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2612 2613 if (!BP_IS_EMBEDDED(bp) && 2614 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2615 size_t size = BP_GET_PSIZE(bp); 2616 abd_t *abd = abd_alloc(size, B_FALSE); 2617 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2618 2619 /* If it's an intent log block, failure is expected. */ 2620 if (zb->zb_level == ZB_ZIL_LEVEL) 2621 flags |= ZIO_FLAG_SPECULATIVE; 2622 2623 mutex_enter(&spa->spa_scrub_lock); 2624 while (spa->spa_scrub_inflight > max_inflight) 2625 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2626 spa->spa_scrub_inflight++; 2627 mutex_exit(&spa->spa_scrub_lock); 2628 2629 zio_nowait(zio_read(NULL, spa, bp, abd, size, 2630 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2631 } 2632 2633 zcb->zcb_readfails = 0; 2634 2635 /* only call gethrtime() every 100 blocks */ 2636 static int iters; 2637 if (++iters > 100) 2638 iters = 0; 2639 else 2640 return (0); 2641 2642 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2643 uint64_t now = gethrtime(); 2644 char buf[10]; 2645 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2646 int kb_per_sec = 2647 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2648 int sec_remaining = 2649 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2650 2651 zfs_nicenum(bytes, buf, sizeof (buf)); 2652 (void) fprintf(stderr, 2653 "\r%5s completed (%4dMB/s) " 2654 "estimated time remaining: %uhr %02umin %02usec ", 2655 buf, kb_per_sec / 1024, 2656 sec_remaining / 60 / 60, 2657 sec_remaining / 60 % 60, 2658 sec_remaining % 60); 2659 2660 zcb->zcb_lastprint = now; 2661 } 2662 2663 return (0); 2664 } 2665 2666 static void 2667 zdb_leak(void *arg, uint64_t start, uint64_t size) 2668 { 2669 vdev_t *vd = arg; 2670 2671 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2672 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2673 } 2674 2675 static metaslab_ops_t zdb_metaslab_ops = { 2676 NULL /* alloc */ 2677 }; 2678 2679 static void 2680 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2681 { 2682 ddt_bookmark_t ddb = { 0 }; 2683 ddt_entry_t dde; 2684 int error; 2685 2686 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2687 blkptr_t blk; 2688 ddt_phys_t *ddp = dde.dde_phys; 2689 2690 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2691 return; 2692 2693 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2694 2695 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2696 if (ddp->ddp_phys_birth == 0) 2697 continue; 2698 ddt_bp_create(ddb.ddb_checksum, 2699 &dde.dde_key, ddp, &blk); 2700 if (p == DDT_PHYS_DITTO) { 2701 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2702 } else { 2703 zcb->zcb_dedup_asize += 2704 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2705 zcb->zcb_dedup_blocks++; 2706 } 2707 } 2708 if (!dump_opt['L']) { 2709 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2710 ddt_enter(ddt); 2711 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2712 ddt_exit(ddt); 2713 } 2714 } 2715 2716 ASSERT(error == ENOENT); 2717 } 2718 2719 static void 2720 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2721 { 2722 zcb->zcb_spa = spa; 2723 2724 if (!dump_opt['L']) { 2725 vdev_t *rvd = spa->spa_root_vdev; 2726 2727 /* 2728 * We are going to be changing the meaning of the metaslab's 2729 * ms_tree. Ensure that the allocator doesn't try to 2730 * use the tree. 2731 */ 2732 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 2733 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 2734 2735 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 2736 vdev_t *vd = rvd->vdev_child[c]; 2737 metaslab_group_t *mg = vd->vdev_mg; 2738 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 2739 metaslab_t *msp = vd->vdev_ms[m]; 2740 ASSERT3P(msp->ms_group, ==, mg); 2741 mutex_enter(&msp->ms_lock); 2742 metaslab_unload(msp); 2743 2744 /* 2745 * For leak detection, we overload the metaslab 2746 * ms_tree to contain allocated segments 2747 * instead of free segments. As a result, 2748 * we can't use the normal metaslab_load/unload 2749 * interfaces. 2750 */ 2751 if (msp->ms_sm != NULL) { 2752 (void) fprintf(stderr, 2753 "\rloading space map for " 2754 "vdev %llu of %llu, " 2755 "metaslab %llu of %llu ...", 2756 (longlong_t)c, 2757 (longlong_t)rvd->vdev_children, 2758 (longlong_t)m, 2759 (longlong_t)vd->vdev_ms_count); 2760 2761 /* 2762 * We don't want to spend the CPU 2763 * manipulating the size-ordered 2764 * tree, so clear the range_tree 2765 * ops. 2766 */ 2767 msp->ms_tree->rt_ops = NULL; 2768 VERIFY0(space_map_load(msp->ms_sm, 2769 msp->ms_tree, SM_ALLOC)); 2770 2771 if (!msp->ms_loaded) { 2772 msp->ms_loaded = B_TRUE; 2773 } 2774 } 2775 mutex_exit(&msp->ms_lock); 2776 } 2777 } 2778 (void) fprintf(stderr, "\n"); 2779 } 2780 2781 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2782 2783 zdb_ddt_leak_init(spa, zcb); 2784 2785 spa_config_exit(spa, SCL_CONFIG, FTAG); 2786 } 2787 2788 static void 2789 zdb_leak_fini(spa_t *spa) 2790 { 2791 if (!dump_opt['L']) { 2792 vdev_t *rvd = spa->spa_root_vdev; 2793 for (int c = 0; c < rvd->vdev_children; c++) { 2794 vdev_t *vd = rvd->vdev_child[c]; 2795 metaslab_group_t *mg = vd->vdev_mg; 2796 for (int m = 0; m < vd->vdev_ms_count; m++) { 2797 metaslab_t *msp = vd->vdev_ms[m]; 2798 ASSERT3P(mg, ==, msp->ms_group); 2799 mutex_enter(&msp->ms_lock); 2800 2801 /* 2802 * The ms_tree has been overloaded to 2803 * contain allocated segments. Now that we 2804 * finished traversing all blocks, any 2805 * block that remains in the ms_tree 2806 * represents an allocated block that we 2807 * did not claim during the traversal. 2808 * Claimed blocks would have been removed 2809 * from the ms_tree. 2810 */ 2811 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2812 2813 if (msp->ms_loaded) { 2814 msp->ms_loaded = B_FALSE; 2815 } 2816 2817 mutex_exit(&msp->ms_lock); 2818 } 2819 } 2820 } 2821 } 2822 2823 /* ARGSUSED */ 2824 static int 2825 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2826 { 2827 zdb_cb_t *zcb = arg; 2828 2829 if (dump_opt['b'] >= 5) { 2830 char blkbuf[BP_SPRINTF_LEN]; 2831 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2832 (void) printf("[%s] %s\n", 2833 "deferred free", blkbuf); 2834 } 2835 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2836 return (0); 2837 } 2838 2839 static int 2840 dump_block_stats(spa_t *spa) 2841 { 2842 zdb_cb_t zcb = { 0 }; 2843 zdb_blkstats_t *zb, *tzb; 2844 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2845 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2846 boolean_t leaks = B_FALSE; 2847 2848 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2849 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2850 (dump_opt['c'] == 1) ? "metadata " : "", 2851 dump_opt['c'] ? "checksums " : "", 2852 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2853 !dump_opt['L'] ? "nothing leaked " : ""); 2854 2855 /* 2856 * Load all space maps as SM_ALLOC maps, then traverse the pool 2857 * claiming each block we discover. If the pool is perfectly 2858 * consistent, the space maps will be empty when we're done. 2859 * Anything left over is a leak; any block we can't claim (because 2860 * it's not part of any space map) is a double allocation, 2861 * reference to a freed block, or an unclaimed log block. 2862 */ 2863 zdb_leak_init(spa, &zcb); 2864 2865 /* 2866 * If there's a deferred-free bplist, process that first. 2867 */ 2868 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2869 count_block_cb, &zcb, NULL); 2870 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2871 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2872 count_block_cb, &zcb, NULL); 2873 } 2874 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2875 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2876 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2877 &zcb, NULL)); 2878 } 2879 2880 if (dump_opt['c'] > 1) 2881 flags |= TRAVERSE_PREFETCH_DATA; 2882 2883 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2884 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2885 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2886 2887 /* 2888 * If we've traversed the data blocks then we need to wait for those 2889 * I/Os to complete. We leverage "The Godfather" zio to wait on 2890 * all async I/Os to complete. 2891 */ 2892 if (dump_opt['c']) { 2893 for (int i = 0; i < max_ncpus; i++) { 2894 (void) zio_wait(spa->spa_async_zio_root[i]); 2895 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2896 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2897 ZIO_FLAG_GODFATHER); 2898 } 2899 } 2900 2901 if (zcb.zcb_haderrors) { 2902 (void) printf("\nError counts:\n\n"); 2903 (void) printf("\t%5s %s\n", "errno", "count"); 2904 for (int e = 0; e < 256; e++) { 2905 if (zcb.zcb_errors[e] != 0) { 2906 (void) printf("\t%5d %llu\n", 2907 e, (u_longlong_t)zcb.zcb_errors[e]); 2908 } 2909 } 2910 } 2911 2912 /* 2913 * Report any leaked segments. 2914 */ 2915 zdb_leak_fini(spa); 2916 2917 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2918 2919 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2920 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2921 2922 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2923 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2924 2925 if (total_found == total_alloc) { 2926 if (!dump_opt['L']) 2927 (void) printf("\n\tNo leaks (block sum matches space" 2928 " maps exactly)\n"); 2929 } else { 2930 (void) printf("block traversal size %llu != alloc %llu " 2931 "(%s %lld)\n", 2932 (u_longlong_t)total_found, 2933 (u_longlong_t)total_alloc, 2934 (dump_opt['L']) ? "unreachable" : "leaked", 2935 (longlong_t)(total_alloc - total_found)); 2936 leaks = B_TRUE; 2937 } 2938 2939 if (tzb->zb_count == 0) 2940 return (2); 2941 2942 (void) printf("\n"); 2943 (void) printf("\tbp count: %10llu\n", 2944 (u_longlong_t)tzb->zb_count); 2945 (void) printf("\tganged count: %10llu\n", 2946 (longlong_t)tzb->zb_gangs); 2947 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2948 (u_longlong_t)tzb->zb_lsize, 2949 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2950 (void) printf("\tbp physical: %10llu avg:" 2951 " %6llu compression: %6.2f\n", 2952 (u_longlong_t)tzb->zb_psize, 2953 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2954 (double)tzb->zb_lsize / tzb->zb_psize); 2955 (void) printf("\tbp allocated: %10llu avg:" 2956 " %6llu compression: %6.2f\n", 2957 (u_longlong_t)tzb->zb_asize, 2958 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2959 (double)tzb->zb_lsize / tzb->zb_asize); 2960 (void) printf("\tbp deduped: %10llu ref>1:" 2961 " %6llu deduplication: %6.2f\n", 2962 (u_longlong_t)zcb.zcb_dedup_asize, 2963 (u_longlong_t)zcb.zcb_dedup_blocks, 2964 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2965 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2966 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2967 2968 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2969 if (zcb.zcb_embedded_blocks[i] == 0) 2970 continue; 2971 (void) printf("\n"); 2972 (void) printf("\tadditional, non-pointer bps of type %u: " 2973 "%10llu\n", 2974 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2975 2976 if (dump_opt['b'] >= 3) { 2977 (void) printf("\t number of (compressed) bytes: " 2978 "number of bps\n"); 2979 dump_histogram(zcb.zcb_embedded_histogram[i], 2980 sizeof (zcb.zcb_embedded_histogram[i]) / 2981 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2982 } 2983 } 2984 2985 if (tzb->zb_ditto_samevdev != 0) { 2986 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2987 (longlong_t)tzb->zb_ditto_samevdev); 2988 } 2989 2990 if (dump_opt['b'] >= 2) { 2991 int l, t, level; 2992 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2993 "\t avg\t comp\t%%Total\tType\n"); 2994 2995 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2996 char csize[32], lsize[32], psize[32], asize[32]; 2997 char avg[32], gang[32]; 2998 char *typename; 2999 3000 if (t < DMU_OT_NUMTYPES) 3001 typename = dmu_ot[t].ot_name; 3002 else 3003 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 3004 3005 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 3006 (void) printf("%6s\t%5s\t%5s\t%5s" 3007 "\t%5s\t%5s\t%6s\t%s\n", 3008 "-", 3009 "-", 3010 "-", 3011 "-", 3012 "-", 3013 "-", 3014 "-", 3015 typename); 3016 continue; 3017 } 3018 3019 for (l = ZB_TOTAL - 1; l >= -1; l--) { 3020 level = (l == -1 ? ZB_TOTAL : l); 3021 zb = &zcb.zcb_type[level][t]; 3022 3023 if (zb->zb_asize == 0) 3024 continue; 3025 3026 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 3027 continue; 3028 3029 if (level == 0 && zb->zb_asize == 3030 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 3031 continue; 3032 3033 zdb_nicenum(zb->zb_count, csize); 3034 zdb_nicenum(zb->zb_lsize, lsize); 3035 zdb_nicenum(zb->zb_psize, psize); 3036 zdb_nicenum(zb->zb_asize, asize); 3037 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 3038 zdb_nicenum(zb->zb_gangs, gang); 3039 3040 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 3041 "\t%5.2f\t%6.2f\t", 3042 csize, lsize, psize, asize, avg, 3043 (double)zb->zb_lsize / zb->zb_psize, 3044 100.0 * zb->zb_asize / tzb->zb_asize); 3045 3046 if (level == ZB_TOTAL) 3047 (void) printf("%s\n", typename); 3048 else 3049 (void) printf(" L%d %s\n", 3050 level, typename); 3051 3052 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 3053 (void) printf("\t number of ganged " 3054 "blocks: %s\n", gang); 3055 } 3056 3057 if (dump_opt['b'] >= 4) { 3058 (void) printf("psize " 3059 "(in 512-byte sectors): " 3060 "number of blocks\n"); 3061 dump_histogram(zb->zb_psize_histogram, 3062 PSIZE_HISTO_SIZE, 0); 3063 } 3064 } 3065 } 3066 } 3067 3068 (void) printf("\n"); 3069 3070 if (leaks) 3071 return (2); 3072 3073 if (zcb.zcb_haderrors) 3074 return (3); 3075 3076 return (0); 3077 } 3078 3079 typedef struct zdb_ddt_entry { 3080 ddt_key_t zdde_key; 3081 uint64_t zdde_ref_blocks; 3082 uint64_t zdde_ref_lsize; 3083 uint64_t zdde_ref_psize; 3084 uint64_t zdde_ref_dsize; 3085 avl_node_t zdde_node; 3086 } zdb_ddt_entry_t; 3087 3088 /* ARGSUSED */ 3089 static int 3090 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 3091 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 3092 { 3093 avl_tree_t *t = arg; 3094 avl_index_t where; 3095 zdb_ddt_entry_t *zdde, zdde_search; 3096 3097 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 3098 return (0); 3099 3100 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 3101 (void) printf("traversing objset %llu, %llu objects, " 3102 "%lu blocks so far\n", 3103 (u_longlong_t)zb->zb_objset, 3104 (u_longlong_t)BP_GET_FILL(bp), 3105 avl_numnodes(t)); 3106 } 3107 3108 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 3109 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 3110 return (0); 3111 3112 ddt_key_fill(&zdde_search.zdde_key, bp); 3113 3114 zdde = avl_find(t, &zdde_search, &where); 3115 3116 if (zdde == NULL) { 3117 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 3118 zdde->zdde_key = zdde_search.zdde_key; 3119 avl_insert(t, zdde, where); 3120 } 3121 3122 zdde->zdde_ref_blocks += 1; 3123 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 3124 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 3125 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 3126 3127 return (0); 3128 } 3129 3130 static void 3131 dump_simulated_ddt(spa_t *spa) 3132 { 3133 avl_tree_t t; 3134 void *cookie = NULL; 3135 zdb_ddt_entry_t *zdde; 3136 ddt_histogram_t ddh_total = { 0 }; 3137 ddt_stat_t dds_total = { 0 }; 3138 3139 avl_create(&t, ddt_entry_compare, 3140 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 3141 3142 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3143 3144 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 3145 zdb_ddt_add_cb, &t); 3146 3147 spa_config_exit(spa, SCL_CONFIG, FTAG); 3148 3149 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 3150 ddt_stat_t dds; 3151 uint64_t refcnt = zdde->zdde_ref_blocks; 3152 ASSERT(refcnt != 0); 3153 3154 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 3155 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 3156 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 3157 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 3158 3159 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 3160 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 3161 dds.dds_ref_psize = zdde->zdde_ref_psize; 3162 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 3163 3164 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 3165 &dds, 0); 3166 3167 umem_free(zdde, sizeof (*zdde)); 3168 } 3169 3170 avl_destroy(&t); 3171 3172 ddt_histogram_stat(&dds_total, &ddh_total); 3173 3174 (void) printf("Simulated DDT histogram:\n"); 3175 3176 zpool_dump_ddt(&dds_total, &ddh_total); 3177 3178 dump_dedup_ratio(&dds_total); 3179 } 3180 3181 static void 3182 dump_zpool(spa_t *spa) 3183 { 3184 dsl_pool_t *dp = spa_get_dsl(spa); 3185 int rc = 0; 3186 3187 if (dump_opt['S']) { 3188 dump_simulated_ddt(spa); 3189 return; 3190 } 3191 3192 if (!dump_opt['e'] && dump_opt['C'] > 1) { 3193 (void) printf("\nCached configuration:\n"); 3194 dump_nvlist(spa->spa_config, 8); 3195 } 3196 3197 if (dump_opt['C']) 3198 dump_config(spa); 3199 3200 if (dump_opt['u']) 3201 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 3202 3203 if (dump_opt['D']) 3204 dump_all_ddts(spa); 3205 3206 if (dump_opt['d'] > 2 || dump_opt['m']) 3207 dump_metaslabs(spa); 3208 if (dump_opt['M']) 3209 dump_metaslab_groups(spa); 3210 3211 if (dump_opt['d'] || dump_opt['i']) { 3212 dump_dir(dp->dp_meta_objset); 3213 if (dump_opt['d'] >= 3) { 3214 dump_full_bpobj(&spa->spa_deferred_bpobj, 3215 "Deferred frees", 0); 3216 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 3217 dump_full_bpobj( 3218 &spa->spa_dsl_pool->dp_free_bpobj, 3219 "Pool snapshot frees", 0); 3220 } 3221 3222 if (spa_feature_is_active(spa, 3223 SPA_FEATURE_ASYNC_DESTROY)) { 3224 dump_bptree(spa->spa_meta_objset, 3225 spa->spa_dsl_pool->dp_bptree_obj, 3226 "Pool dataset frees"); 3227 } 3228 dump_dtl(spa->spa_root_vdev, 0); 3229 } 3230 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 3231 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 3232 3233 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 3234 uint64_t refcount; 3235 3236 if (!(spa_feature_table[f].fi_flags & 3237 ZFEATURE_FLAG_PER_DATASET) || 3238 !spa_feature_is_enabled(spa, f)) { 3239 ASSERT0(dataset_feature_count[f]); 3240 continue; 3241 } 3242 (void) feature_get_refcount(spa, 3243 &spa_feature_table[f], &refcount); 3244 if (dataset_feature_count[f] != refcount) { 3245 (void) printf("%s feature refcount mismatch: " 3246 "%lld datasets != %lld refcount\n", 3247 spa_feature_table[f].fi_uname, 3248 (longlong_t)dataset_feature_count[f], 3249 (longlong_t)refcount); 3250 rc = 2; 3251 } else { 3252 (void) printf("Verified %s feature refcount " 3253 "of %llu is correct\n", 3254 spa_feature_table[f].fi_uname, 3255 (longlong_t)refcount); 3256 } 3257 } 3258 } 3259 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 3260 rc = dump_block_stats(spa); 3261 3262 if (rc == 0) 3263 rc = verify_spacemap_refcounts(spa); 3264 3265 if (dump_opt['s']) 3266 show_pool_stats(spa); 3267 3268 if (dump_opt['h']) 3269 dump_history(spa); 3270 3271 if (rc != 0) { 3272 dump_debug_buffer(); 3273 exit(rc); 3274 } 3275 } 3276 3277 #define ZDB_FLAG_CHECKSUM 0x0001 3278 #define ZDB_FLAG_DECOMPRESS 0x0002 3279 #define ZDB_FLAG_BSWAP 0x0004 3280 #define ZDB_FLAG_GBH 0x0008 3281 #define ZDB_FLAG_INDIRECT 0x0010 3282 #define ZDB_FLAG_PHYS 0x0020 3283 #define ZDB_FLAG_RAW 0x0040 3284 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 3285 3286 int flagbits[256]; 3287 3288 static void 3289 zdb_print_blkptr(blkptr_t *bp, int flags) 3290 { 3291 char blkbuf[BP_SPRINTF_LEN]; 3292 3293 if (flags & ZDB_FLAG_BSWAP) 3294 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 3295 3296 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3297 (void) printf("%s\n", blkbuf); 3298 } 3299 3300 static void 3301 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 3302 { 3303 int i; 3304 3305 for (i = 0; i < nbps; i++) 3306 zdb_print_blkptr(&bp[i], flags); 3307 } 3308 3309 static void 3310 zdb_dump_gbh(void *buf, int flags) 3311 { 3312 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 3313 } 3314 3315 static void 3316 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 3317 { 3318 if (flags & ZDB_FLAG_BSWAP) 3319 byteswap_uint64_array(buf, size); 3320 (void) write(1, buf, size); 3321 } 3322 3323 static void 3324 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 3325 { 3326 uint64_t *d = (uint64_t *)buf; 3327 int nwords = size / sizeof (uint64_t); 3328 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 3329 int i, j; 3330 char *hdr, *c; 3331 3332 3333 if (do_bswap) 3334 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 3335 else 3336 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3337 3338 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3339 3340 for (i = 0; i < nwords; i += 2) { 3341 (void) printf("%06llx: %016llx %016llx ", 3342 (u_longlong_t)(i * sizeof (uint64_t)), 3343 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3344 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3345 3346 c = (char *)&d[i]; 3347 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3348 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3349 (void) printf("\n"); 3350 } 3351 } 3352 3353 /* 3354 * There are two acceptable formats: 3355 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3356 * child[.child]* - For example: 0.1.1 3357 * 3358 * The second form can be used to specify arbitrary vdevs anywhere 3359 * in the heirarchy. For example, in a pool with a mirror of 3360 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3361 */ 3362 static vdev_t * 3363 zdb_vdev_lookup(vdev_t *vdev, char *path) 3364 { 3365 char *s, *p, *q; 3366 int i; 3367 3368 if (vdev == NULL) 3369 return (NULL); 3370 3371 /* First, assume the x.x.x.x format */ 3372 i = (int)strtoul(path, &s, 10); 3373 if (s == path || (s && *s != '.' && *s != '\0')) 3374 goto name; 3375 if (i < 0 || i >= vdev->vdev_children) 3376 return (NULL); 3377 3378 vdev = vdev->vdev_child[i]; 3379 if (*s == '\0') 3380 return (vdev); 3381 return (zdb_vdev_lookup(vdev, s+1)); 3382 3383 name: 3384 for (i = 0; i < vdev->vdev_children; i++) { 3385 vdev_t *vc = vdev->vdev_child[i]; 3386 3387 if (vc->vdev_path == NULL) { 3388 vc = zdb_vdev_lookup(vc, path); 3389 if (vc == NULL) 3390 continue; 3391 else 3392 return (vc); 3393 } 3394 3395 p = strrchr(vc->vdev_path, '/'); 3396 p = p ? p + 1 : vc->vdev_path; 3397 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3398 3399 if (strcmp(vc->vdev_path, path) == 0) 3400 return (vc); 3401 if (strcmp(p, path) == 0) 3402 return (vc); 3403 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3404 return (vc); 3405 } 3406 3407 return (NULL); 3408 } 3409 3410 /* ARGSUSED */ 3411 static int 3412 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused) 3413 { 3414 return (random_get_pseudo_bytes(buf, len)); 3415 } 3416 3417 /* 3418 * Read a block from a pool and print it out. The syntax of the 3419 * block descriptor is: 3420 * 3421 * pool:vdev_specifier:offset:size[:flags] 3422 * 3423 * pool - The name of the pool you wish to read from 3424 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3425 * offset - offset, in hex, in bytes 3426 * size - Amount of data to read, in hex, in bytes 3427 * flags - A string of characters specifying options 3428 * b: Decode a blkptr at given offset within block 3429 * *c: Calculate and display checksums 3430 * d: Decompress data before dumping 3431 * e: Byteswap data before dumping 3432 * g: Display data as a gang block header 3433 * i: Display as an indirect block 3434 * p: Do I/O to physical offset 3435 * r: Dump raw data to stdout 3436 * 3437 * * = not yet implemented 3438 */ 3439 static void 3440 zdb_read_block(char *thing, spa_t *spa) 3441 { 3442 blkptr_t blk, *bp = &blk; 3443 dva_t *dva = bp->blk_dva; 3444 int flags = 0; 3445 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3446 zio_t *zio; 3447 vdev_t *vd; 3448 abd_t *pabd; 3449 void *lbuf, *buf; 3450 char *s, *p, *dup, *vdev, *flagstr; 3451 int i, error; 3452 3453 dup = strdup(thing); 3454 s = strtok(dup, ":"); 3455 vdev = s ? s : ""; 3456 s = strtok(NULL, ":"); 3457 offset = strtoull(s ? s : "", NULL, 16); 3458 s = strtok(NULL, ":"); 3459 size = strtoull(s ? s : "", NULL, 16); 3460 s = strtok(NULL, ":"); 3461 flagstr = s ? s : ""; 3462 3463 s = NULL; 3464 if (size == 0) 3465 s = "size must not be zero"; 3466 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3467 s = "size must be a multiple of sector size"; 3468 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3469 s = "offset must be a multiple of sector size"; 3470 if (s) { 3471 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3472 free(dup); 3473 return; 3474 } 3475 3476 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3477 for (i = 0; flagstr[i]; i++) { 3478 int bit = flagbits[(uchar_t)flagstr[i]]; 3479 3480 if (bit == 0) { 3481 (void) printf("***Invalid flag: %c\n", 3482 flagstr[i]); 3483 continue; 3484 } 3485 flags |= bit; 3486 3487 /* If it's not something with an argument, keep going */ 3488 if ((bit & (ZDB_FLAG_CHECKSUM | 3489 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3490 continue; 3491 3492 p = &flagstr[i + 1]; 3493 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3494 blkptr_offset = strtoull(p, &p, 16); 3495 if (*p != ':' && *p != '\0') { 3496 (void) printf("***Invalid flag arg: '%s'\n", s); 3497 free(dup); 3498 return; 3499 } 3500 } 3501 } 3502 3503 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3504 if (vd == NULL) { 3505 (void) printf("***Invalid vdev: %s\n", vdev); 3506 free(dup); 3507 return; 3508 } else { 3509 if (vd->vdev_path) 3510 (void) fprintf(stderr, "Found vdev: %s\n", 3511 vd->vdev_path); 3512 else 3513 (void) fprintf(stderr, "Found vdev type: %s\n", 3514 vd->vdev_ops->vdev_op_type); 3515 } 3516 3517 psize = size; 3518 lsize = size; 3519 3520 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE); 3521 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3522 3523 BP_ZERO(bp); 3524 3525 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3526 DVA_SET_OFFSET(&dva[0], offset); 3527 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3528 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3529 3530 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3531 3532 BP_SET_LSIZE(bp, lsize); 3533 BP_SET_PSIZE(bp, psize); 3534 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3535 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3536 BP_SET_TYPE(bp, DMU_OT_NONE); 3537 BP_SET_LEVEL(bp, 0); 3538 BP_SET_DEDUP(bp, 0); 3539 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3540 3541 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3542 zio = zio_root(spa, NULL, NULL, 0); 3543 3544 if (vd == vd->vdev_top) { 3545 /* 3546 * Treat this as a normal block read. 3547 */ 3548 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL, 3549 ZIO_PRIORITY_SYNC_READ, 3550 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3551 } else { 3552 /* 3553 * Treat this as a vdev child I/O. 3554 */ 3555 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd, 3556 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3557 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3558 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3559 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3560 } 3561 3562 error = zio_wait(zio); 3563 spa_config_exit(spa, SCL_STATE, FTAG); 3564 3565 if (error) { 3566 (void) printf("Read of %s failed, error: %d\n", thing, error); 3567 goto out; 3568 } 3569 3570 if (flags & ZDB_FLAG_DECOMPRESS) { 3571 /* 3572 * We don't know how the data was compressed, so just try 3573 * every decompress function at every inflated blocksize. 3574 */ 3575 enum zio_compress c; 3576 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3577 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3578 3579 abd_copy_to_buf(pbuf2, pabd, psize); 3580 3581 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize, 3582 random_get_pseudo_bytes_cb, NULL)); 3583 3584 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3585 SPA_MAXBLOCKSIZE - psize)); 3586 3587 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3588 lsize -= SPA_MINBLOCKSIZE) { 3589 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3590 if (zio_decompress_data(c, pabd, 3591 lbuf, psize, lsize) == 0 && 3592 zio_decompress_data_buf(c, pbuf2, 3593 lbuf2, psize, lsize) == 0 && 3594 bcmp(lbuf, lbuf2, lsize) == 0) 3595 break; 3596 } 3597 if (c != ZIO_COMPRESS_FUNCTIONS) 3598 break; 3599 lsize -= SPA_MINBLOCKSIZE; 3600 } 3601 3602 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3603 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3604 3605 if (lsize <= psize) { 3606 (void) printf("Decompress of %s failed\n", thing); 3607 goto out; 3608 } 3609 buf = lbuf; 3610 size = lsize; 3611 } else { 3612 buf = abd_to_buf(pabd); 3613 size = psize; 3614 } 3615 3616 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3617 zdb_print_blkptr((blkptr_t *)(void *) 3618 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3619 else if (flags & ZDB_FLAG_RAW) 3620 zdb_dump_block_raw(buf, size, flags); 3621 else if (flags & ZDB_FLAG_INDIRECT) 3622 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3623 flags); 3624 else if (flags & ZDB_FLAG_GBH) 3625 zdb_dump_gbh(buf, flags); 3626 else 3627 zdb_dump_block(thing, buf, size, flags); 3628 3629 out: 3630 abd_free(pabd); 3631 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3632 free(dup); 3633 } 3634 3635 static void 3636 zdb_embedded_block(char *thing) 3637 { 3638 blkptr_t bp = { 0 }; 3639 unsigned long long *words = (void *)&bp; 3640 char buf[SPA_MAXBLOCKSIZE]; 3641 int err; 3642 3643 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:" 3644 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx", 3645 words + 0, words + 1, words + 2, words + 3, 3646 words + 4, words + 5, words + 6, words + 7, 3647 words + 8, words + 9, words + 10, words + 11, 3648 words + 12, words + 13, words + 14, words + 15); 3649 if (err != 16) { 3650 (void) printf("invalid input format\n"); 3651 exit(1); 3652 } 3653 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE); 3654 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp)); 3655 if (err != 0) { 3656 (void) printf("decode failed: %u\n", err); 3657 exit(1); 3658 } 3659 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0); 3660 } 3661 3662 static boolean_t 3663 pool_match(nvlist_t *cfg, char *tgt) 3664 { 3665 uint64_t v, guid = strtoull(tgt, NULL, 0); 3666 char *s; 3667 3668 if (guid != 0) { 3669 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3670 return (v == guid); 3671 } else { 3672 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3673 return (strcmp(s, tgt) == 0); 3674 } 3675 return (B_FALSE); 3676 } 3677 3678 static char * 3679 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3680 { 3681 nvlist_t *pools; 3682 nvlist_t *match = NULL; 3683 char *name = NULL; 3684 char *sepp = NULL; 3685 char sep = '\0'; 3686 int count = 0; 3687 importargs_t args = { 0 }; 3688 3689 args.paths = dirc; 3690 args.path = dirv; 3691 args.can_be_active = B_TRUE; 3692 3693 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3694 sep = *sepp; 3695 *sepp = '\0'; 3696 } 3697 3698 pools = zpool_search_import(g_zfs, &args); 3699 3700 if (pools != NULL) { 3701 nvpair_t *elem = NULL; 3702 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3703 verify(nvpair_value_nvlist(elem, configp) == 0); 3704 if (pool_match(*configp, *target)) { 3705 count++; 3706 if (match != NULL) { 3707 /* print previously found config */ 3708 if (name != NULL) { 3709 (void) printf("%s\n", name); 3710 dump_nvlist(match, 8); 3711 name = NULL; 3712 } 3713 (void) printf("%s\n", 3714 nvpair_name(elem)); 3715 dump_nvlist(*configp, 8); 3716 } else { 3717 match = *configp; 3718 name = nvpair_name(elem); 3719 } 3720 } 3721 } 3722 } 3723 if (count > 1) 3724 (void) fatal("\tMatched %d pools - use pool GUID " 3725 "instead of pool name or \n" 3726 "\tpool name part of a dataset name to select pool", count); 3727 3728 if (sepp) 3729 *sepp = sep; 3730 /* 3731 * If pool GUID was specified for pool id, replace it with pool name 3732 */ 3733 if (name && (strstr(*target, name) != *target)) { 3734 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3735 3736 *target = umem_alloc(sz, UMEM_NOFAIL); 3737 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3738 } 3739 3740 *configp = name ? match : NULL; 3741 3742 return (name); 3743 } 3744 3745 int 3746 main(int argc, char **argv) 3747 { 3748 int i, c; 3749 struct rlimit rl = { 1024, 1024 }; 3750 spa_t *spa = NULL; 3751 objset_t *os = NULL; 3752 int dump_all = 1; 3753 int verbose = 0; 3754 int error = 0; 3755 char **searchdirs = NULL; 3756 int nsearch = 0; 3757 char *target; 3758 nvlist_t *policy = NULL; 3759 uint64_t max_txg = UINT64_MAX; 3760 int flags = ZFS_IMPORT_MISSING_LOG; 3761 int rewind = ZPOOL_NEVER_REWIND; 3762 char *spa_config_path_env; 3763 boolean_t target_is_spa = B_TRUE; 3764 3765 (void) setrlimit(RLIMIT_NOFILE, &rl); 3766 (void) enable_extended_FILE_stdio(-1, -1); 3767 3768 dprintf_setup(&argc, argv); 3769 3770 /* 3771 * If there is an environment variable SPA_CONFIG_PATH it overrides 3772 * default spa_config_path setting. If -U flag is specified it will 3773 * override this environment variable settings once again. 3774 */ 3775 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 3776 if (spa_config_path_env != NULL) 3777 spa_config_path = spa_config_path_env; 3778 3779 while ((c = getopt(argc, argv, 3780 "AbcCdDeEFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) { 3781 switch (c) { 3782 case 'b': 3783 case 'c': 3784 case 'C': 3785 case 'd': 3786 case 'D': 3787 case 'E': 3788 case 'G': 3789 case 'h': 3790 case 'i': 3791 case 'l': 3792 case 'm': 3793 case 'M': 3794 case 'O': 3795 case 'R': 3796 case 's': 3797 case 'S': 3798 case 'u': 3799 dump_opt[c]++; 3800 dump_all = 0; 3801 break; 3802 case 'A': 3803 case 'e': 3804 case 'F': 3805 case 'L': 3806 case 'P': 3807 case 'q': 3808 case 'X': 3809 dump_opt[c]++; 3810 break; 3811 /* NB: Sort single match options below. */ 3812 case 'I': 3813 max_inflight = strtoull(optarg, NULL, 0); 3814 if (max_inflight == 0) { 3815 (void) fprintf(stderr, "maximum number " 3816 "of inflight I/Os must be greater " 3817 "than 0\n"); 3818 usage(); 3819 } 3820 break; 3821 case 'o': 3822 error = set_global_var(optarg); 3823 if (error != 0) 3824 usage(); 3825 break; 3826 case 'p': 3827 if (searchdirs == NULL) { 3828 searchdirs = umem_alloc(sizeof (char *), 3829 UMEM_NOFAIL); 3830 } else { 3831 char **tmp = umem_alloc((nsearch + 1) * 3832 sizeof (char *), UMEM_NOFAIL); 3833 bcopy(searchdirs, tmp, nsearch * 3834 sizeof (char *)); 3835 umem_free(searchdirs, 3836 nsearch * sizeof (char *)); 3837 searchdirs = tmp; 3838 } 3839 searchdirs[nsearch++] = optarg; 3840 break; 3841 case 't': 3842 max_txg = strtoull(optarg, NULL, 0); 3843 if (max_txg < TXG_INITIAL) { 3844 (void) fprintf(stderr, "incorrect txg " 3845 "specified: %s\n", optarg); 3846 usage(); 3847 } 3848 break; 3849 case 'U': 3850 spa_config_path = optarg; 3851 if (spa_config_path[0] != '/') { 3852 (void) fprintf(stderr, 3853 "cachefile must be an absolute path " 3854 "(i.e. start with a slash)\n"); 3855 usage(); 3856 } 3857 break; 3858 case 'v': 3859 verbose++; 3860 break; 3861 case 'V': 3862 flags = ZFS_IMPORT_VERBATIM; 3863 break; 3864 case 'x': 3865 vn_dumpdir = optarg; 3866 break; 3867 default: 3868 usage(); 3869 break; 3870 } 3871 } 3872 3873 if (!dump_opt['e'] && searchdirs != NULL) { 3874 (void) fprintf(stderr, "-p option requires use of -e\n"); 3875 usage(); 3876 } 3877 3878 /* 3879 * ZDB does not typically re-read blocks; therefore limit the ARC 3880 * to 256 MB, which can be used entirely for metadata. 3881 */ 3882 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 3883 3884 /* 3885 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 3886 * "zdb -b" uses traversal prefetch which uses async reads. 3887 * For good performance, let several of them be active at once. 3888 */ 3889 zfs_vdev_async_read_max_active = 10; 3890 3891 /* 3892 * Disable reference tracking for better performance. 3893 */ 3894 reference_tracking_enable = B_FALSE; 3895 3896 kernel_init(FREAD); 3897 g_zfs = libzfs_init(); 3898 ASSERT(g_zfs != NULL); 3899 3900 if (dump_all) 3901 verbose = MAX(verbose, 1); 3902 3903 for (c = 0; c < 256; c++) { 3904 if (dump_all && strchr("AeEFlLOPRSX", c) == NULL) 3905 dump_opt[c] = 1; 3906 if (dump_opt[c]) 3907 dump_opt[c] += verbose; 3908 } 3909 3910 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3911 zfs_recover = (dump_opt['A'] > 1); 3912 3913 argc -= optind; 3914 argv += optind; 3915 3916 if (argc < 2 && dump_opt['R']) 3917 usage(); 3918 3919 if (dump_opt['E']) { 3920 if (argc != 1) 3921 usage(); 3922 zdb_embedded_block(argv[0]); 3923 return (0); 3924 } 3925 3926 if (argc < 1) { 3927 if (!dump_opt['e'] && dump_opt['C']) { 3928 dump_cachefile(spa_config_path); 3929 return (0); 3930 } 3931 usage(); 3932 } 3933 3934 if (dump_opt['l']) 3935 return (dump_label(argv[0])); 3936 3937 if (dump_opt['O']) { 3938 if (argc != 2) 3939 usage(); 3940 dump_opt['v'] = verbose + 3; 3941 return (dump_path(argv[0], argv[1])); 3942 } 3943 3944 if (dump_opt['X'] || dump_opt['F']) 3945 rewind = ZPOOL_DO_REWIND | 3946 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3947 3948 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3949 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3950 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3951 fatal("internal error: %s", strerror(ENOMEM)); 3952 3953 error = 0; 3954 target = argv[0]; 3955 3956 if (dump_opt['e']) { 3957 nvlist_t *cfg = NULL; 3958 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3959 3960 error = ENOENT; 3961 if (name) { 3962 if (dump_opt['C'] > 1) { 3963 (void) printf("\nConfiguration for import:\n"); 3964 dump_nvlist(cfg, 8); 3965 } 3966 if (nvlist_add_nvlist(cfg, 3967 ZPOOL_REWIND_POLICY, policy) != 0) { 3968 fatal("can't open '%s': %s", 3969 target, strerror(ENOMEM)); 3970 } 3971 error = spa_import(name, cfg, NULL, flags); 3972 } 3973 } 3974 3975 if (strpbrk(target, "/@") != NULL) { 3976 size_t targetlen; 3977 3978 target_is_spa = B_FALSE; 3979 /* 3980 * Remove any trailing slash. Later code would get confused 3981 * by it, but we want to allow it so that "pool/" can 3982 * indicate that we want to dump the topmost filesystem, 3983 * rather than the whole pool. 3984 */ 3985 targetlen = strlen(target); 3986 if (targetlen != 0 && target[targetlen - 1] == '/') 3987 target[targetlen - 1] = '\0'; 3988 } 3989 3990 if (error == 0) { 3991 if (target_is_spa || dump_opt['R']) { 3992 error = spa_open_rewind(target, &spa, FTAG, policy, 3993 NULL); 3994 if (error) { 3995 /* 3996 * If we're missing the log device then 3997 * try opening the pool after clearing the 3998 * log state. 3999 */ 4000 mutex_enter(&spa_namespace_lock); 4001 if ((spa = spa_lookup(target)) != NULL && 4002 spa->spa_log_state == SPA_LOG_MISSING) { 4003 spa->spa_log_state = SPA_LOG_CLEAR; 4004 error = 0; 4005 } 4006 mutex_exit(&spa_namespace_lock); 4007 4008 if (!error) { 4009 error = spa_open_rewind(target, &spa, 4010 FTAG, policy, NULL); 4011 } 4012 } 4013 } else { 4014 error = open_objset(target, DMU_OST_ANY, FTAG, &os); 4015 } 4016 } 4017 nvlist_free(policy); 4018 4019 if (error) 4020 fatal("can't open '%s': %s", target, strerror(error)); 4021 4022 argv++; 4023 argc--; 4024 if (!dump_opt['R']) { 4025 if (argc > 0) { 4026 zopt_objects = argc; 4027 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 4028 for (i = 0; i < zopt_objects; i++) { 4029 errno = 0; 4030 zopt_object[i] = strtoull(argv[i], NULL, 0); 4031 if (zopt_object[i] == 0 && errno != 0) 4032 fatal("bad number %s: %s", 4033 argv[i], strerror(errno)); 4034 } 4035 } 4036 if (os != NULL) { 4037 dump_dir(os); 4038 } else if (zopt_objects > 0 && !dump_opt['m']) { 4039 dump_dir(spa->spa_meta_objset); 4040 } else { 4041 dump_zpool(spa); 4042 } 4043 } else { 4044 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 4045 flagbits['c'] = ZDB_FLAG_CHECKSUM; 4046 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 4047 flagbits['e'] = ZDB_FLAG_BSWAP; 4048 flagbits['g'] = ZDB_FLAG_GBH; 4049 flagbits['i'] = ZDB_FLAG_INDIRECT; 4050 flagbits['p'] = ZDB_FLAG_PHYS; 4051 flagbits['r'] = ZDB_FLAG_RAW; 4052 4053 for (i = 0; i < argc; i++) 4054 zdb_read_block(argv[i], spa); 4055 } 4056 4057 if (os != NULL) 4058 close_objset(os, FTAG); 4059 else 4060 spa_close(spa, FTAG); 4061 4062 fuid_table_destroy(); 4063 4064 dump_debug_buffer(); 4065 4066 libzfs_fini(g_zfs); 4067 kernel_fini(); 4068 4069 return (0); 4070 } 4071