1 // SPDX-License-Identifier: CDDL-1.0 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License (the "License"). 7 * You may not use this file except in compliance with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or https://opensource.org/licenses/CDDL-1.0. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright (c) 2011, 2018 by Delphix. All rights reserved. 25 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 26 * Copyright (c) 2013, Joyent, Inc. All rights reserved. 27 * Copyright (c) 2014, Nexenta Systems, Inc. All rights reserved. 28 * Copyright (c) 2017, Intel Corporation. 29 * Copyright (c) 2019, 2024, Klara, Inc. 30 * Copyright (c) 2019, Allan Jude 31 */ 32 33 #ifndef _KERNEL 34 #include <errno.h> 35 #include <string.h> 36 #include <dirent.h> 37 #include <search.h> 38 #include <sys/stat.h> 39 #endif 40 #include <sys/debug.h> 41 #include <sys/fs/zfs.h> 42 #include <sys/inttypes.h> 43 #include <sys/types.h> 44 #include <sys/param.h> 45 #include <sys/zfs_sysfs.h> 46 #include "zfeature_common.h" 47 48 /* 49 * Set to disable all feature checks while opening pools, allowing pools with 50 * unsupported features to be opened. Set for testing only. 51 */ 52 boolean_t zfeature_checks_disable = B_FALSE; 53 54 zfeature_info_t spa_feature_table[SPA_FEATURES]; 55 56 /* 57 * Valid characters for feature guids. This list is mainly for aesthetic 58 * purposes and could be expanded in the future. There are different allowed 59 * characters in the guids reverse dns portion (before the colon) and its 60 * short name (after the colon). 61 */ 62 static int 63 valid_char(char c, boolean_t after_colon) 64 { 65 return ((c >= 'a' && c <= 'z') || 66 (c >= '0' && c <= '9') || 67 (after_colon && c == '_') || 68 (!after_colon && (c == '.' || c == '-'))); 69 } 70 71 /* 72 * Every feature guid must contain exactly one colon which separates a reverse 73 * dns organization name from the feature's "short" name (e.g. 74 * "com.company:feature_name"). 75 */ 76 boolean_t 77 zfeature_is_valid_guid(const char *name) 78 { 79 int i; 80 boolean_t has_colon = B_FALSE; 81 82 i = 0; 83 while (name[i] != '\0') { 84 char c = name[i++]; 85 if (c == ':') { 86 if (has_colon) 87 return (B_FALSE); 88 has_colon = B_TRUE; 89 continue; 90 } 91 if (!valid_char(c, has_colon)) 92 return (B_FALSE); 93 } 94 95 return (has_colon); 96 } 97 98 boolean_t 99 zfeature_is_supported(const char *guid) 100 { 101 if (zfeature_checks_disable) 102 return (B_TRUE); 103 104 for (spa_feature_t i = 0; i < SPA_FEATURES; i++) { 105 zfeature_info_t *feature = &spa_feature_table[i]; 106 if (!feature->fi_zfs_mod_supported) 107 continue; 108 if (strcmp(guid, feature->fi_guid) == 0) 109 return (B_TRUE); 110 } 111 return (B_FALSE); 112 } 113 114 int 115 zfeature_lookup_guid(const char *guid, spa_feature_t *res) 116 { 117 for (spa_feature_t i = 0; i < SPA_FEATURES; i++) { 118 zfeature_info_t *feature = &spa_feature_table[i]; 119 if (!feature->fi_zfs_mod_supported) 120 continue; 121 if (strcmp(guid, feature->fi_guid) == 0) { 122 if (res != NULL) 123 *res = i; 124 return (0); 125 } 126 } 127 128 return (ENOENT); 129 } 130 131 int 132 zfeature_lookup_name(const char *name, spa_feature_t *res) 133 { 134 for (spa_feature_t i = 0; i < SPA_FEATURES; i++) { 135 zfeature_info_t *feature = &spa_feature_table[i]; 136 if (!feature->fi_zfs_mod_supported) 137 continue; 138 if (strcmp(name, feature->fi_uname) == 0) { 139 if (res != NULL) 140 *res = i; 141 return (0); 142 } 143 } 144 145 return (ENOENT); 146 } 147 148 boolean_t 149 zfeature_depends_on(spa_feature_t fid, spa_feature_t check) 150 { 151 zfeature_info_t *feature = &spa_feature_table[fid]; 152 153 for (int i = 0; feature->fi_depends[i] != SPA_FEATURE_NONE; i++) { 154 if (feature->fi_depends[i] == check) 155 return (B_TRUE); 156 } 157 return (B_FALSE); 158 } 159 160 static boolean_t 161 deps_contains_feature(const spa_feature_t *deps, const spa_feature_t feature) 162 { 163 for (int i = 0; deps[i] != SPA_FEATURE_NONE; i++) 164 if (deps[i] == feature) 165 return (B_TRUE); 166 167 return (B_FALSE); 168 } 169 170 #define STRCMP ((int(*)(const void *, const void *))&strcmp) 171 struct zfs_mod_supported_features { 172 void *tree; 173 boolean_t all_features; 174 }; 175 176 struct zfs_mod_supported_features * 177 zfs_mod_list_supported(const char *scope) 178 { 179 #if defined(__FreeBSD__) || defined(_KERNEL) || defined(LIB_ZPOOL_BUILD) 180 (void) scope; 181 return (NULL); 182 #else 183 struct zfs_mod_supported_features *ret = calloc(1, sizeof (*ret)); 184 if (ret == NULL) 185 return (NULL); 186 187 DIR *sysfs_dir = NULL; 188 char path[128]; 189 190 if (snprintf(path, sizeof (path), "%s/%s", 191 ZFS_SYSFS_DIR, scope) < sizeof (path)) 192 sysfs_dir = opendir(path); 193 if (sysfs_dir == NULL && errno == ENOENT) { 194 if (snprintf(path, sizeof (path), "%s/%s", 195 ZFS_SYSFS_ALT_DIR, scope) < sizeof (path)) 196 sysfs_dir = opendir(path); 197 } 198 if (sysfs_dir == NULL) { 199 ret->all_features = errno == ENOENT && 200 (access(ZFS_SYSFS_DIR, F_OK) == 0 || 201 access(ZFS_SYSFS_ALT_DIR, F_OK) == 0); 202 return (ret); 203 } 204 205 struct dirent *node; 206 while ((node = readdir(sysfs_dir)) != NULL) { 207 if (strcmp(node->d_name, ".") == 0 || 208 strcmp(node->d_name, "..") == 0) 209 continue; 210 211 char *name = strdup(node->d_name); 212 if (name == NULL) { 213 goto nomem; 214 } 215 216 if (tsearch(name, &ret->tree, STRCMP) == NULL) { 217 /* 218 * Don't bother checking for duplicate entries: 219 * we're iterating a single directory. 220 */ 221 free(name); 222 goto nomem; 223 } 224 } 225 226 end: 227 closedir(sysfs_dir); 228 return (ret); 229 230 nomem: 231 zfs_mod_list_supported_free(ret); 232 ret = NULL; 233 goto end; 234 #endif 235 } 236 237 void 238 zfs_mod_list_supported_free(struct zfs_mod_supported_features *list) 239 { 240 #if !defined(__FreeBSD__) && !defined(_KERNEL) && !defined(LIB_ZPOOL_BUILD) 241 if (list) { 242 tdestroy(list->tree, free); 243 free(list); 244 } 245 #else 246 (void) list; 247 #endif 248 } 249 250 #if !defined(_KERNEL) && !defined(LIB_ZPOOL_BUILD) 251 static boolean_t 252 zfs_mod_supported_impl(const char *scope, const char *name, const char *sysfs) 253 { 254 char path[128]; 255 if (snprintf(path, sizeof (path), "%s%s%s%s%s", sysfs, 256 scope == NULL ? "" : "/", scope ?: "", 257 name == NULL ? "" : "/", name ?: "") < sizeof (path)) 258 return (access(path, F_OK) == 0); 259 else 260 return (B_FALSE); 261 } 262 263 boolean_t 264 zfs_mod_supported(const char *scope, const char *name, 265 const struct zfs_mod_supported_features *sfeatures) 266 { 267 boolean_t supported; 268 269 if (sfeatures != NULL) 270 return (sfeatures->all_features || 271 tfind(name, &sfeatures->tree, STRCMP)); 272 273 /* 274 * Check both the primary and alternate sysfs locations to determine 275 * if the required functionality is supported. 276 */ 277 supported = (zfs_mod_supported_impl(scope, name, ZFS_SYSFS_DIR) || 278 zfs_mod_supported_impl(scope, name, ZFS_SYSFS_ALT_DIR)); 279 280 /* 281 * For backwards compatibility with kernel modules that predate 282 * supported feature/property checking. Report the feature/property 283 * as supported if the kernel module is loaded but the requested 284 * scope directory does not exist. 285 */ 286 if (supported == B_FALSE) { 287 if ((access(ZFS_SYSFS_DIR, F_OK) == 0 && 288 !zfs_mod_supported_impl(scope, NULL, ZFS_SYSFS_DIR)) || 289 (access(ZFS_SYSFS_ALT_DIR, F_OK) == 0 && 290 !zfs_mod_supported_impl(scope, NULL, ZFS_SYSFS_ALT_DIR))) { 291 supported = B_TRUE; 292 } 293 } 294 295 return (supported); 296 } 297 #endif 298 299 static boolean_t 300 zfs_mod_supported_feature(const char *name, 301 const struct zfs_mod_supported_features *sfeatures) 302 { 303 /* 304 * The zfs module spa_feature_table[], whether in-kernel or in 305 * libzpool, always supports all the features. libzfs needs to 306 * query the running module, via sysfs, to determine which 307 * features are supported. 308 * 309 * The equivalent _can_ be done on FreeBSD by way of the sysctl 310 * tree, but this has not been done yet. Therefore, we return 311 * that all features are supported. 312 */ 313 314 #if defined(_KERNEL) || defined(LIB_ZPOOL_BUILD) || defined(__FreeBSD__) 315 (void) name, (void) sfeatures; 316 return (B_TRUE); 317 #else 318 return (zfs_mod_supported(ZFS_SYSFS_POOL_FEATURES, name, sfeatures)); 319 #endif 320 } 321 322 static void 323 zfeature_register(spa_feature_t fid, const char *guid, const char *name, 324 const char *desc, zfeature_flags_t flags, zfeature_type_t type, 325 const spa_feature_t *deps, 326 const struct zfs_mod_supported_features *sfeatures) 327 { 328 zfeature_info_t *feature = &spa_feature_table[fid]; 329 static const spa_feature_t nodeps[] = { SPA_FEATURE_NONE }; 330 331 ASSERT(name != NULL); 332 ASSERT(desc != NULL); 333 ASSERT((flags & ZFEATURE_FLAG_READONLY_COMPAT) == 0 || 334 (flags & ZFEATURE_FLAG_MOS) == 0); 335 ASSERT3U(fid, <, SPA_FEATURES); 336 ASSERT(zfeature_is_valid_guid(guid)); 337 338 if (deps == NULL) 339 deps = nodeps; 340 341 VERIFY(((flags & ZFEATURE_FLAG_PER_DATASET) == 0) || 342 (deps_contains_feature(deps, SPA_FEATURE_EXTENSIBLE_DATASET))); 343 344 feature->fi_feature = fid; 345 feature->fi_guid = guid; 346 feature->fi_uname = name; 347 feature->fi_desc = desc; 348 feature->fi_flags = flags; 349 feature->fi_type = type; 350 feature->fi_depends = deps; 351 feature->fi_zfs_mod_supported = 352 zfs_mod_supported_feature(guid, sfeatures); 353 } 354 355 /* 356 * Every feature has a GUID of the form com.example:feature_name. The 357 * reversed DNS name ensures that the feature's GUID is unique across all ZFS 358 * implementations. This allows companies to independently develop and 359 * release features. Examples include org.delphix and org.datto. Previously, 360 * features developed on one implementation have used that implementation's 361 * domain name (e.g. org.illumos and org.zfsonlinux). Use of the org.openzfs 362 * domain name is recommended for new features which are developed by the 363 * OpenZFS community and its platforms. This domain may optionally be used by 364 * companies developing features for initial release through an OpenZFS 365 * implementation. Use of the org.openzfs domain requires reserving the 366 * feature name in advance with the OpenZFS project. 367 */ 368 void 369 zpool_feature_init(void) 370 { 371 struct zfs_mod_supported_features *sfeatures = 372 zfs_mod_list_supported(ZFS_SYSFS_POOL_FEATURES); 373 374 zfeature_register(SPA_FEATURE_ASYNC_DESTROY, 375 "com.delphix:async_destroy", "async_destroy", 376 "Destroy filesystems asynchronously.", 377 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, NULL, 378 sfeatures); 379 380 zfeature_register(SPA_FEATURE_EMPTY_BPOBJ, 381 "com.delphix:empty_bpobj", "empty_bpobj", 382 "Snapshots use less space.", 383 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, NULL, 384 sfeatures); 385 386 zfeature_register(SPA_FEATURE_LZ4_COMPRESS, 387 "org.illumos:lz4_compress", "lz4_compress", 388 "LZ4 compression algorithm support.", 389 ZFEATURE_FLAG_ACTIVATE_ON_ENABLE, ZFEATURE_TYPE_BOOLEAN, NULL, 390 sfeatures); 391 392 zfeature_register(SPA_FEATURE_MULTI_VDEV_CRASH_DUMP, 393 "com.joyent:multi_vdev_crash_dump", "multi_vdev_crash_dump", 394 "Crash dumps to multiple vdev pools.", 395 0, ZFEATURE_TYPE_BOOLEAN, NULL, sfeatures); 396 397 zfeature_register(SPA_FEATURE_SPACEMAP_HISTOGRAM, 398 "com.delphix:spacemap_histogram", "spacemap_histogram", 399 "Spacemaps maintain space histograms.", 400 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, NULL, 401 sfeatures); 402 403 zfeature_register(SPA_FEATURE_ENABLED_TXG, 404 "com.delphix:enabled_txg", "enabled_txg", 405 "Record txg at which a feature is enabled", 406 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, NULL, 407 sfeatures); 408 409 { 410 static const spa_feature_t hole_birth_deps[] = { 411 SPA_FEATURE_ENABLED_TXG, 412 SPA_FEATURE_NONE 413 }; 414 zfeature_register(SPA_FEATURE_HOLE_BIRTH, 415 "com.delphix:hole_birth", "hole_birth", 416 "Retain hole birth txg for more precise zfs send", 417 ZFEATURE_FLAG_MOS | ZFEATURE_FLAG_ACTIVATE_ON_ENABLE, 418 ZFEATURE_TYPE_BOOLEAN, hole_birth_deps, sfeatures); 419 } 420 421 zfeature_register(SPA_FEATURE_POOL_CHECKPOINT, 422 "com.delphix:zpool_checkpoint", "zpool_checkpoint", 423 "Pool state can be checkpointed, allowing rewind later.", 424 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, NULL, 425 sfeatures); 426 427 zfeature_register(SPA_FEATURE_SPACEMAP_V2, 428 "com.delphix:spacemap_v2", "spacemap_v2", 429 "Space maps representing large segments are more efficient.", 430 ZFEATURE_FLAG_READONLY_COMPAT | ZFEATURE_FLAG_ACTIVATE_ON_ENABLE, 431 ZFEATURE_TYPE_BOOLEAN, NULL, sfeatures); 432 433 zfeature_register(SPA_FEATURE_EXTENSIBLE_DATASET, 434 "com.delphix:extensible_dataset", "extensible_dataset", 435 "Enhanced dataset functionality, used by other features.", 436 0, ZFEATURE_TYPE_BOOLEAN, NULL, sfeatures); 437 438 { 439 static const spa_feature_t bookmarks_deps[] = { 440 SPA_FEATURE_EXTENSIBLE_DATASET, 441 SPA_FEATURE_NONE 442 }; 443 444 zfeature_register(SPA_FEATURE_BOOKMARKS, 445 "com.delphix:bookmarks", "bookmarks", 446 "\"zfs bookmark\" command", 447 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, 448 bookmarks_deps, sfeatures); 449 } 450 451 { 452 static const spa_feature_t filesystem_limits_deps[] = { 453 SPA_FEATURE_EXTENSIBLE_DATASET, 454 SPA_FEATURE_NONE 455 }; 456 zfeature_register(SPA_FEATURE_FS_SS_LIMIT, 457 "com.joyent:filesystem_limits", "filesystem_limits", 458 "Filesystem and snapshot limits.", 459 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, 460 filesystem_limits_deps, sfeatures); 461 } 462 463 zfeature_register(SPA_FEATURE_EMBEDDED_DATA, 464 "com.delphix:embedded_data", "embedded_data", 465 "Blocks which compress very well use even less space.", 466 ZFEATURE_FLAG_MOS | ZFEATURE_FLAG_ACTIVATE_ON_ENABLE, 467 ZFEATURE_TYPE_BOOLEAN, NULL, sfeatures); 468 469 { 470 static const spa_feature_t livelist_deps[] = { 471 SPA_FEATURE_EXTENSIBLE_DATASET, 472 SPA_FEATURE_NONE 473 }; 474 zfeature_register(SPA_FEATURE_LIVELIST, 475 "com.delphix:livelist", "livelist", 476 "Improved clone deletion performance.", 477 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, 478 livelist_deps, sfeatures); 479 } 480 481 { 482 static const spa_feature_t log_spacemap_deps[] = { 483 SPA_FEATURE_SPACEMAP_V2, 484 SPA_FEATURE_NONE 485 }; 486 zfeature_register(SPA_FEATURE_LOG_SPACEMAP, 487 "com.delphix:log_spacemap", "log_spacemap", 488 "Log metaslab changes on a single spacemap and " 489 "flush them periodically.", 490 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, 491 log_spacemap_deps, sfeatures); 492 } 493 494 { 495 static const spa_feature_t large_blocks_deps[] = { 496 SPA_FEATURE_EXTENSIBLE_DATASET, 497 SPA_FEATURE_NONE 498 }; 499 zfeature_register(SPA_FEATURE_LARGE_BLOCKS, 500 "org.open-zfs:large_blocks", "large_blocks", 501 "Support for blocks larger than 128KB.", 502 ZFEATURE_FLAG_PER_DATASET, ZFEATURE_TYPE_BOOLEAN, 503 large_blocks_deps, sfeatures); 504 } 505 506 { 507 static const spa_feature_t large_dnode_deps[] = { 508 SPA_FEATURE_EXTENSIBLE_DATASET, 509 SPA_FEATURE_NONE 510 }; 511 zfeature_register(SPA_FEATURE_LARGE_DNODE, 512 "org.zfsonlinux:large_dnode", "large_dnode", 513 "Variable on-disk size of dnodes.", 514 ZFEATURE_FLAG_PER_DATASET, ZFEATURE_TYPE_BOOLEAN, 515 large_dnode_deps, sfeatures); 516 } 517 518 { 519 static const spa_feature_t sha512_deps[] = { 520 SPA_FEATURE_EXTENSIBLE_DATASET, 521 SPA_FEATURE_NONE 522 }; 523 zfeature_register(SPA_FEATURE_SHA512, 524 "org.illumos:sha512", "sha512", 525 "SHA-512/256 hash algorithm.", 526 ZFEATURE_FLAG_PER_DATASET, ZFEATURE_TYPE_BOOLEAN, 527 sha512_deps, sfeatures); 528 } 529 530 { 531 static const spa_feature_t skein_deps[] = { 532 SPA_FEATURE_EXTENSIBLE_DATASET, 533 SPA_FEATURE_NONE 534 }; 535 zfeature_register(SPA_FEATURE_SKEIN, 536 "org.illumos:skein", "skein", 537 "Skein hash algorithm.", 538 ZFEATURE_FLAG_PER_DATASET, ZFEATURE_TYPE_BOOLEAN, 539 skein_deps, sfeatures); 540 } 541 542 { 543 static const spa_feature_t edonr_deps[] = { 544 SPA_FEATURE_EXTENSIBLE_DATASET, 545 SPA_FEATURE_NONE 546 }; 547 zfeature_register(SPA_FEATURE_EDONR, 548 "org.illumos:edonr", "edonr", 549 "Edon-R hash algorithm.", 550 ZFEATURE_FLAG_PER_DATASET, ZFEATURE_TYPE_BOOLEAN, 551 edonr_deps, sfeatures); 552 } 553 554 { 555 static const spa_feature_t redact_books_deps[] = { 556 SPA_FEATURE_BOOKMARK_V2, 557 SPA_FEATURE_EXTENSIBLE_DATASET, 558 SPA_FEATURE_BOOKMARKS, 559 SPA_FEATURE_NONE 560 }; 561 zfeature_register(SPA_FEATURE_REDACTION_BOOKMARKS, 562 "com.delphix:redaction_bookmarks", "redaction_bookmarks", 563 "Support for bookmarks which store redaction lists for zfs " 564 "redacted send/recv.", 0, ZFEATURE_TYPE_BOOLEAN, 565 redact_books_deps, sfeatures); 566 } 567 568 { 569 static const spa_feature_t redact_datasets_deps[] = { 570 SPA_FEATURE_EXTENSIBLE_DATASET, 571 SPA_FEATURE_NONE 572 }; 573 zfeature_register(SPA_FEATURE_REDACTED_DATASETS, 574 "com.delphix:redacted_datasets", "redacted_datasets", 575 "Support for redacted datasets, produced by receiving " 576 "a redacted zfs send stream.", 577 ZFEATURE_FLAG_PER_DATASET, ZFEATURE_TYPE_UINT64_ARRAY, 578 redact_datasets_deps, sfeatures); 579 } 580 581 { 582 static const spa_feature_t bookmark_written_deps[] = { 583 SPA_FEATURE_BOOKMARK_V2, 584 SPA_FEATURE_EXTENSIBLE_DATASET, 585 SPA_FEATURE_BOOKMARKS, 586 SPA_FEATURE_NONE 587 }; 588 zfeature_register(SPA_FEATURE_BOOKMARK_WRITTEN, 589 "com.delphix:bookmark_written", "bookmark_written", 590 "Additional accounting, enabling the written#<bookmark> " 591 "property (space written since a bookmark), " 592 "and estimates of send stream sizes for incrementals from " 593 "bookmarks.", 594 0, ZFEATURE_TYPE_BOOLEAN, bookmark_written_deps, sfeatures); 595 } 596 597 zfeature_register(SPA_FEATURE_DEVICE_REMOVAL, 598 "com.delphix:device_removal", "device_removal", 599 "Top-level vdevs can be removed, reducing logical pool size.", 600 ZFEATURE_FLAG_MOS, ZFEATURE_TYPE_BOOLEAN, NULL, sfeatures); 601 602 { 603 static const spa_feature_t obsolete_counts_deps[] = { 604 SPA_FEATURE_EXTENSIBLE_DATASET, 605 SPA_FEATURE_DEVICE_REMOVAL, 606 SPA_FEATURE_NONE 607 }; 608 zfeature_register(SPA_FEATURE_OBSOLETE_COUNTS, 609 "com.delphix:obsolete_counts", "obsolete_counts", 610 "Reduce memory used by removed devices when their blocks " 611 "are freed or remapped.", 612 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, 613 obsolete_counts_deps, sfeatures); 614 } 615 616 { 617 static const spa_feature_t userobj_accounting_deps[] = { 618 SPA_FEATURE_EXTENSIBLE_DATASET, 619 SPA_FEATURE_NONE 620 }; 621 zfeature_register(SPA_FEATURE_USEROBJ_ACCOUNTING, 622 "org.zfsonlinux:userobj_accounting", "userobj_accounting", 623 "User/Group object accounting.", 624 ZFEATURE_FLAG_READONLY_COMPAT | ZFEATURE_FLAG_PER_DATASET, 625 ZFEATURE_TYPE_BOOLEAN, userobj_accounting_deps, sfeatures); 626 } 627 628 { 629 static const spa_feature_t bookmark_v2_deps[] = { 630 SPA_FEATURE_EXTENSIBLE_DATASET, 631 SPA_FEATURE_BOOKMARKS, 632 SPA_FEATURE_NONE 633 }; 634 zfeature_register(SPA_FEATURE_BOOKMARK_V2, 635 "com.datto:bookmark_v2", "bookmark_v2", 636 "Support for larger bookmarks", 637 0, ZFEATURE_TYPE_BOOLEAN, bookmark_v2_deps, sfeatures); 638 } 639 640 { 641 static const spa_feature_t encryption_deps[] = { 642 SPA_FEATURE_EXTENSIBLE_DATASET, 643 SPA_FEATURE_BOOKMARK_V2, 644 SPA_FEATURE_NONE 645 }; 646 zfeature_register(SPA_FEATURE_ENCRYPTION, 647 "com.datto:encryption", "encryption", 648 "Support for dataset level encryption", 649 ZFEATURE_FLAG_PER_DATASET, ZFEATURE_TYPE_BOOLEAN, 650 encryption_deps, sfeatures); 651 } 652 653 { 654 static const spa_feature_t project_quota_deps[] = { 655 SPA_FEATURE_EXTENSIBLE_DATASET, 656 SPA_FEATURE_NONE 657 }; 658 zfeature_register(SPA_FEATURE_PROJECT_QUOTA, 659 "org.zfsonlinux:project_quota", "project_quota", 660 "space/object accounting based on project ID.", 661 ZFEATURE_FLAG_READONLY_COMPAT | ZFEATURE_FLAG_PER_DATASET, 662 ZFEATURE_TYPE_BOOLEAN, project_quota_deps, sfeatures); 663 } 664 665 zfeature_register(SPA_FEATURE_ALLOCATION_CLASSES, 666 "org.zfsonlinux:allocation_classes", "allocation_classes", 667 "Support for separate allocation classes.", 668 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, NULL, 669 sfeatures); 670 671 zfeature_register(SPA_FEATURE_RESILVER_DEFER, 672 "com.datto:resilver_defer", "resilver_defer", 673 "Support for deferring new resilvers when one is already running.", 674 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, NULL, 675 sfeatures); 676 677 zfeature_register(SPA_FEATURE_DEVICE_REBUILD, 678 "org.openzfs:device_rebuild", "device_rebuild", 679 "Support for sequential mirror/dRAID device rebuilds", 680 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, NULL, 681 sfeatures); 682 683 { 684 static const spa_feature_t zstd_deps[] = { 685 SPA_FEATURE_EXTENSIBLE_DATASET, 686 SPA_FEATURE_NONE 687 }; 688 zfeature_register(SPA_FEATURE_ZSTD_COMPRESS, 689 "org.freebsd:zstd_compress", "zstd_compress", 690 "zstd compression algorithm support.", 691 ZFEATURE_FLAG_PER_DATASET, ZFEATURE_TYPE_BOOLEAN, zstd_deps, 692 sfeatures); 693 } 694 695 zfeature_register(SPA_FEATURE_DRAID, 696 "org.openzfs:draid", "draid", "Support for distributed spare RAID", 697 ZFEATURE_FLAG_MOS, ZFEATURE_TYPE_BOOLEAN, NULL, sfeatures); 698 699 { 700 static const spa_feature_t zilsaxattr_deps[] = { 701 SPA_FEATURE_EXTENSIBLE_DATASET, 702 SPA_FEATURE_NONE 703 }; 704 zfeature_register(SPA_FEATURE_ZILSAXATTR, 705 "org.openzfs:zilsaxattr", "zilsaxattr", 706 "Support for xattr=sa extended attribute logging in ZIL.", 707 ZFEATURE_FLAG_PER_DATASET | ZFEATURE_FLAG_READONLY_COMPAT, 708 ZFEATURE_TYPE_BOOLEAN, zilsaxattr_deps, sfeatures); 709 } 710 711 zfeature_register(SPA_FEATURE_HEAD_ERRLOG, 712 "com.delphix:head_errlog", "head_errlog", 713 "Support for per-dataset on-disk error logs.", 714 ZFEATURE_FLAG_ACTIVATE_ON_ENABLE, ZFEATURE_TYPE_BOOLEAN, NULL, 715 sfeatures); 716 717 { 718 static const spa_feature_t blake3_deps[] = { 719 SPA_FEATURE_EXTENSIBLE_DATASET, 720 SPA_FEATURE_NONE 721 }; 722 zfeature_register(SPA_FEATURE_BLAKE3, 723 "org.openzfs:blake3", "blake3", 724 "BLAKE3 hash algorithm.", 725 ZFEATURE_FLAG_PER_DATASET, ZFEATURE_TYPE_BOOLEAN, 726 blake3_deps, sfeatures); 727 } 728 729 zfeature_register(SPA_FEATURE_BLOCK_CLONING, 730 "com.fudosecurity:block_cloning", "block_cloning", 731 "Support for block cloning via Block Reference Table.", 732 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, NULL, 733 sfeatures); 734 735 zfeature_register(SPA_FEATURE_AVZ_V2, 736 "com.klarasystems:vdev_zaps_v2", "vdev_zaps_v2", 737 "Support for root vdev ZAP.", 738 ZFEATURE_FLAG_MOS, ZFEATURE_TYPE_BOOLEAN, NULL, 739 sfeatures); 740 741 { 742 static const spa_feature_t redact_list_spill_deps[] = { 743 SPA_FEATURE_REDACTION_BOOKMARKS, 744 SPA_FEATURE_NONE 745 }; 746 zfeature_register(SPA_FEATURE_REDACTION_LIST_SPILL, 747 "com.delphix:redaction_list_spill", "redaction_list_spill", 748 "Support for increased number of redaction_snapshot " 749 "arguments in zfs redact.", 0, ZFEATURE_TYPE_BOOLEAN, 750 redact_list_spill_deps, sfeatures); 751 } 752 753 zfeature_register(SPA_FEATURE_RAIDZ_EXPANSION, 754 "org.openzfs:raidz_expansion", "raidz_expansion", 755 "Support for raidz expansion", 756 ZFEATURE_FLAG_MOS, ZFEATURE_TYPE_BOOLEAN, NULL, sfeatures); 757 758 zfeature_register(SPA_FEATURE_FAST_DEDUP, 759 "com.klarasystems:fast_dedup", "fast_dedup", 760 "Support for advanced deduplication", 761 ZFEATURE_FLAG_READONLY_COMPAT, ZFEATURE_TYPE_BOOLEAN, NULL, 762 sfeatures); 763 764 { 765 static const spa_feature_t longname_deps[] = { 766 SPA_FEATURE_EXTENSIBLE_DATASET, 767 SPA_FEATURE_NONE 768 }; 769 zfeature_register(SPA_FEATURE_LONGNAME, 770 "org.zfsonlinux:longname", "longname", 771 "support filename up to 1024 bytes", 772 ZFEATURE_FLAG_PER_DATASET, ZFEATURE_TYPE_BOOLEAN, 773 longname_deps, sfeatures); 774 } 775 776 { 777 static const spa_feature_t large_microzap_deps[] = { 778 SPA_FEATURE_EXTENSIBLE_DATASET, 779 SPA_FEATURE_LARGE_BLOCKS, 780 SPA_FEATURE_NONE 781 }; 782 zfeature_register(SPA_FEATURE_LARGE_MICROZAP, 783 "com.klarasystems:large_microzap", "large_microzap", 784 "Support for microzaps larger than 128KB.", 785 ZFEATURE_FLAG_PER_DATASET | ZFEATURE_FLAG_READONLY_COMPAT, 786 ZFEATURE_TYPE_BOOLEAN, large_microzap_deps, sfeatures); 787 } 788 789 zfs_mod_list_supported_free(sfeatures); 790 } 791 792 #if defined(_KERNEL) 793 EXPORT_SYMBOL(zfeature_lookup_guid); 794 EXPORT_SYMBOL(zfeature_lookup_name); 795 EXPORT_SYMBOL(zfeature_is_supported); 796 EXPORT_SYMBOL(zfeature_is_valid_guid); 797 EXPORT_SYMBOL(zfeature_depends_on); 798 EXPORT_SYMBOL(zpool_feature_init); 799 EXPORT_SYMBOL(spa_feature_table); 800 #endif 801