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) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 25 * Copyright (c) 2011, 2014, 2016, 2024 by Delphix. All rights reserved. 26 * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 27 * Copyright (c) 2013, 2017 Joyent, Inc. All rights reserved. 28 * Copyright (c) 2014 Integros [integros.com] 29 * Copyright (c) 2017, Intel Corporation. 30 * Copyright (c) 2019 Datto Inc. 31 * Portions Copyright 2010 Robert Milkowski 32 * Copyright (c) 2021, Colm Buckley <colm@tuatha.org> 33 * Copyright (c) 2022 Hewlett Packard Enterprise Development LP. 34 * Copyright (c) 2024, Klara, Inc. 35 */ 36 37 #ifndef _SYS_FS_ZFS_H 38 #define _SYS_FS_ZFS_H extern __attribute__((visibility("default"))) 39 40 #include <sys/time.h> 41 42 #ifdef __cplusplus 43 extern "C" { 44 #endif 45 46 /* 47 * Types and constants shared between userland and the kernel. 48 */ 49 50 /* 51 * Each dataset can be one of the following types. These constants can be 52 * combined into masks that can be passed to various functions. 53 */ 54 typedef enum { 55 ZFS_TYPE_INVALID = 0, 56 ZFS_TYPE_FILESYSTEM = (1 << 0), 57 ZFS_TYPE_SNAPSHOT = (1 << 1), 58 ZFS_TYPE_VOLUME = (1 << 2), 59 ZFS_TYPE_POOL = (1 << 3), 60 ZFS_TYPE_BOOKMARK = (1 << 4), 61 ZFS_TYPE_VDEV = (1 << 5), 62 } zfs_type_t; 63 64 /* 65 * NB: lzc_dataset_type should be updated whenever a new objset type is added, 66 * if it represents a real type of a dataset that can be created from userland. 67 */ 68 typedef enum dmu_objset_type { 69 DMU_OST_NONE, 70 DMU_OST_META, 71 DMU_OST_ZFS, 72 DMU_OST_ZVOL, 73 DMU_OST_OTHER, /* For testing only! */ 74 DMU_OST_ANY, /* Be careful! */ 75 DMU_OST_NUMTYPES 76 } dmu_objset_type_t; 77 78 #define ZFS_TYPE_DATASET \ 79 (ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME | ZFS_TYPE_SNAPSHOT) 80 81 /* 82 * All of these include the terminating NUL byte. 83 */ 84 #define ZAP_MAXNAMELEN 256 85 #define ZAP_MAXNAMELEN_NEW 1024 86 #define ZAP_MAXVALUELEN (1024 * 8) 87 #define ZAP_OLDMAXVALUELEN 1024 88 #define ZFS_MAX_DATASET_NAME_LEN 256 89 90 /* 91 * Dataset properties are identified by these constants and must be added to 92 * the end of this list to ensure that external consumers are not affected 93 * by the change. If you make any changes to this list, be sure to update 94 * the property table in module/zcommon/zfs_prop.c. 95 */ 96 typedef enum { 97 ZPROP_CONT = -2, 98 ZPROP_INVAL = -1, 99 ZPROP_USERPROP = ZPROP_INVAL, 100 ZFS_PROP_TYPE = 0, 101 ZFS_PROP_CREATION, 102 ZFS_PROP_USED, 103 ZFS_PROP_AVAILABLE, 104 ZFS_PROP_REFERENCED, 105 ZFS_PROP_COMPRESSRATIO, 106 ZFS_PROP_MOUNTED, 107 ZFS_PROP_ORIGIN, 108 ZFS_PROP_QUOTA, 109 ZFS_PROP_RESERVATION, 110 ZFS_PROP_VOLSIZE, 111 ZFS_PROP_VOLBLOCKSIZE, 112 ZFS_PROP_RECORDSIZE, 113 ZFS_PROP_MOUNTPOINT, 114 ZFS_PROP_SHARENFS, 115 ZFS_PROP_CHECKSUM, 116 ZFS_PROP_COMPRESSION, 117 ZFS_PROP_ATIME, 118 ZFS_PROP_DEVICES, 119 ZFS_PROP_EXEC, 120 ZFS_PROP_SETUID, 121 ZFS_PROP_READONLY, 122 ZFS_PROP_ZONED, 123 ZFS_PROP_SNAPDIR, 124 ZFS_PROP_ACLMODE, 125 ZFS_PROP_ACLINHERIT, 126 ZFS_PROP_CREATETXG, 127 ZFS_PROP_NAME, /* not exposed to the user */ 128 ZFS_PROP_CANMOUNT, 129 ZFS_PROP_ISCSIOPTIONS, /* not exposed to the user */ 130 ZFS_PROP_XATTR, 131 ZFS_PROP_NUMCLONES, /* not exposed to the user */ 132 ZFS_PROP_COPIES, 133 ZFS_PROP_VERSION, 134 ZFS_PROP_UTF8ONLY, 135 ZFS_PROP_NORMALIZE, 136 ZFS_PROP_CASE, 137 ZFS_PROP_VSCAN, 138 ZFS_PROP_NBMAND, 139 ZFS_PROP_SHARESMB, 140 ZFS_PROP_REFQUOTA, 141 ZFS_PROP_REFRESERVATION, 142 ZFS_PROP_GUID, 143 ZFS_PROP_PRIMARYCACHE, 144 ZFS_PROP_SECONDARYCACHE, 145 ZFS_PROP_USEDSNAP, 146 ZFS_PROP_USEDDS, 147 ZFS_PROP_USEDCHILD, 148 ZFS_PROP_USEDREFRESERV, 149 ZFS_PROP_USERACCOUNTING, /* not exposed to the user */ 150 ZFS_PROP_STMF_SHAREINFO, /* not exposed to the user */ 151 ZFS_PROP_DEFER_DESTROY, 152 ZFS_PROP_USERREFS, 153 ZFS_PROP_LOGBIAS, 154 ZFS_PROP_UNIQUE, /* not exposed to the user */ 155 ZFS_PROP_OBJSETID, 156 ZFS_PROP_DEDUP, 157 ZFS_PROP_MLSLABEL, 158 ZFS_PROP_SYNC, 159 ZFS_PROP_DNODESIZE, 160 ZFS_PROP_REFRATIO, 161 ZFS_PROP_WRITTEN, 162 ZFS_PROP_CLONES, 163 ZFS_PROP_LOGICALUSED, 164 ZFS_PROP_LOGICALREFERENCED, 165 ZFS_PROP_INCONSISTENT, /* not exposed to the user */ 166 ZFS_PROP_VOLMODE, 167 ZFS_PROP_FILESYSTEM_LIMIT, 168 ZFS_PROP_SNAPSHOT_LIMIT, 169 ZFS_PROP_FILESYSTEM_COUNT, 170 ZFS_PROP_SNAPSHOT_COUNT, 171 ZFS_PROP_SNAPDEV, 172 ZFS_PROP_ACLTYPE, 173 ZFS_PROP_SELINUX_CONTEXT, 174 ZFS_PROP_SELINUX_FSCONTEXT, 175 ZFS_PROP_SELINUX_DEFCONTEXT, 176 ZFS_PROP_SELINUX_ROOTCONTEXT, 177 ZFS_PROP_RELATIME, 178 ZFS_PROP_REDUNDANT_METADATA, 179 ZFS_PROP_OVERLAY, 180 ZFS_PROP_PREV_SNAP, 181 ZFS_PROP_RECEIVE_RESUME_TOKEN, 182 ZFS_PROP_ENCRYPTION, 183 ZFS_PROP_KEYLOCATION, 184 ZFS_PROP_KEYFORMAT, 185 ZFS_PROP_PBKDF2_SALT, 186 ZFS_PROP_PBKDF2_ITERS, 187 ZFS_PROP_ENCRYPTION_ROOT, 188 ZFS_PROP_KEY_GUID, 189 ZFS_PROP_KEYSTATUS, 190 ZFS_PROP_REMAPTXG, /* obsolete - no longer used */ 191 ZFS_PROP_SPECIAL_SMALL_BLOCKS, 192 ZFS_PROP_IVSET_GUID, /* not exposed to the user */ 193 ZFS_PROP_REDACTED, 194 ZFS_PROP_REDACT_SNAPS, 195 ZFS_PROP_SNAPSHOTS_CHANGED, 196 ZFS_PROP_PREFETCH, 197 ZFS_PROP_VOLTHREADING, 198 ZFS_PROP_DIRECT, 199 ZFS_PROP_LONGNAME, 200 ZFS_PROP_DEFAULTUSERQUOTA, 201 ZFS_PROP_DEFAULTGROUPQUOTA, 202 ZFS_PROP_DEFAULTPROJECTQUOTA, 203 ZFS_PROP_DEFAULTUSEROBJQUOTA, 204 ZFS_PROP_DEFAULTGROUPOBJQUOTA, 205 ZFS_PROP_DEFAULTPROJECTOBJQUOTA, 206 ZFS_NUM_PROPS 207 } zfs_prop_t; 208 209 typedef enum { 210 ZFS_PROP_USERUSED, 211 ZFS_PROP_USERQUOTA, 212 ZFS_PROP_GROUPUSED, 213 ZFS_PROP_GROUPQUOTA, 214 ZFS_PROP_USEROBJUSED, 215 ZFS_PROP_USEROBJQUOTA, 216 ZFS_PROP_GROUPOBJUSED, 217 ZFS_PROP_GROUPOBJQUOTA, 218 ZFS_PROP_PROJECTUSED, 219 ZFS_PROP_PROJECTQUOTA, 220 ZFS_PROP_PROJECTOBJUSED, 221 ZFS_PROP_PROJECTOBJQUOTA, 222 ZFS_NUM_USERQUOTA_PROPS 223 } zfs_userquota_prop_t; 224 225 _SYS_FS_ZFS_H const char *const zfs_userquota_prop_prefixes[ 226 ZFS_NUM_USERQUOTA_PROPS]; 227 228 /* 229 * Pool properties are identified by these constants and must be added to the 230 * end of this list to ensure that external consumers are not affected 231 * by the change. Properties must be registered in zfs_prop_init(). 232 */ 233 typedef enum { 234 ZPOOL_PROP_INVAL = -1, 235 ZPOOL_PROP_NAME, 236 ZPOOL_PROP_SIZE, 237 ZPOOL_PROP_CAPACITY, 238 ZPOOL_PROP_ALTROOT, 239 ZPOOL_PROP_HEALTH, 240 ZPOOL_PROP_GUID, 241 ZPOOL_PROP_VERSION, 242 ZPOOL_PROP_BOOTFS, 243 ZPOOL_PROP_DELEGATION, 244 ZPOOL_PROP_AUTOREPLACE, 245 ZPOOL_PROP_CACHEFILE, 246 ZPOOL_PROP_FAILUREMODE, 247 ZPOOL_PROP_LISTSNAPS, 248 ZPOOL_PROP_AUTOEXPAND, 249 ZPOOL_PROP_DEDUPDITTO, 250 ZPOOL_PROP_DEDUPRATIO, 251 ZPOOL_PROP_FREE, 252 ZPOOL_PROP_ALLOCATED, 253 ZPOOL_PROP_READONLY, 254 ZPOOL_PROP_ASHIFT, 255 ZPOOL_PROP_COMMENT, 256 ZPOOL_PROP_EXPANDSZ, 257 ZPOOL_PROP_FREEING, 258 ZPOOL_PROP_FRAGMENTATION, 259 ZPOOL_PROP_LEAKED, 260 ZPOOL_PROP_MAXBLOCKSIZE, 261 ZPOOL_PROP_TNAME, 262 ZPOOL_PROP_MAXDNODESIZE, 263 ZPOOL_PROP_MULTIHOST, 264 ZPOOL_PROP_CHECKPOINT, 265 ZPOOL_PROP_LOAD_GUID, 266 ZPOOL_PROP_AUTOTRIM, 267 ZPOOL_PROP_COMPATIBILITY, 268 ZPOOL_PROP_BCLONEUSED, 269 ZPOOL_PROP_BCLONESAVED, 270 ZPOOL_PROP_BCLONERATIO, 271 ZPOOL_PROP_DEDUP_TABLE_SIZE, 272 ZPOOL_PROP_DEDUP_TABLE_QUOTA, 273 ZPOOL_PROP_DEDUPCACHED, 274 ZPOOL_PROP_LAST_SCRUBBED_TXG, 275 ZPOOL_NUM_PROPS 276 } zpool_prop_t; 277 278 /* Small enough to not hog a whole line of printout in zpool(8). */ 279 #define ZPROP_MAX_COMMENT 32 280 #define ZPROP_BOOLEAN_NA 2 281 282 #define ZPROP_VALUE "value" 283 #define ZPROP_SOURCE "source" 284 285 typedef enum { 286 ZPROP_SRC_NONE = 0x1, 287 ZPROP_SRC_DEFAULT = 0x2, 288 ZPROP_SRC_TEMPORARY = 0x4, 289 ZPROP_SRC_LOCAL = 0x8, 290 ZPROP_SRC_INHERITED = 0x10, 291 ZPROP_SRC_RECEIVED = 0x20 292 } zprop_source_t; 293 294 #define ZPROP_SRC_ALL 0x3f 295 296 #define ZPROP_SOURCE_VAL_RECVD "$recvd" 297 #define ZPROP_N_MORE_ERRORS "N_MORE_ERRORS" 298 299 /* 300 * Dataset flag implemented as a special entry in the props zap object 301 * indicating that the dataset has received properties on or after 302 * SPA_VERSION_RECVD_PROPS. The first such receive blows away local properties 303 * just as it did in earlier versions, and thereafter, local properties are 304 * preserved. 305 */ 306 #define ZPROP_HAS_RECVD "$hasrecvd" 307 308 typedef enum { 309 ZPROP_ERR_NOCLEAR = 0x1, /* failure to clear existing props */ 310 ZPROP_ERR_NORESTORE = 0x2 /* failure to restore props on error */ 311 } zprop_errflags_t; 312 313 typedef int (*zprop_func)(int, void *); 314 315 /* 316 * Properties to be set on the root file system of a new pool 317 * are stuffed into their own nvlist, which is then included in 318 * the properties nvlist with the pool properties. 319 */ 320 #define ZPOOL_ROOTFS_PROPS "root-props-nvl" 321 322 /* 323 * Length of 'written@' and 'written#' 324 */ 325 #define ZFS_WRITTEN_PROP_PREFIX_LEN 8 326 327 /* 328 * VDEV properties are identified by these constants and must be added to the 329 * end of this list to ensure that external consumers are not affected 330 * by the change. If you make any changes to this list, be sure to update 331 * the property table in usr/src/common/zfs/zpool_prop.c. 332 */ 333 typedef enum { 334 VDEV_PROP_INVAL = -1, 335 VDEV_PROP_USERPROP = VDEV_PROP_INVAL, 336 VDEV_PROP_NAME, 337 VDEV_PROP_CAPACITY, 338 VDEV_PROP_STATE, 339 VDEV_PROP_GUID, 340 VDEV_PROP_ASIZE, 341 VDEV_PROP_PSIZE, 342 VDEV_PROP_ASHIFT, 343 VDEV_PROP_SIZE, 344 VDEV_PROP_FREE, 345 VDEV_PROP_ALLOCATED, 346 VDEV_PROP_COMMENT, 347 VDEV_PROP_EXPANDSZ, 348 VDEV_PROP_FRAGMENTATION, 349 VDEV_PROP_BOOTSIZE, 350 VDEV_PROP_PARITY, 351 VDEV_PROP_PATH, 352 VDEV_PROP_DEVID, 353 VDEV_PROP_PHYS_PATH, 354 VDEV_PROP_ENC_PATH, 355 VDEV_PROP_FRU, 356 VDEV_PROP_PARENT, 357 VDEV_PROP_CHILDREN, 358 VDEV_PROP_NUMCHILDREN, 359 VDEV_PROP_READ_ERRORS, 360 VDEV_PROP_WRITE_ERRORS, 361 VDEV_PROP_CHECKSUM_ERRORS, 362 VDEV_PROP_INITIALIZE_ERRORS, 363 VDEV_PROP_OPS_NULL, 364 VDEV_PROP_OPS_READ, 365 VDEV_PROP_OPS_WRITE, 366 VDEV_PROP_OPS_FREE, 367 VDEV_PROP_OPS_CLAIM, 368 VDEV_PROP_OPS_TRIM, 369 VDEV_PROP_BYTES_NULL, 370 VDEV_PROP_BYTES_READ, 371 VDEV_PROP_BYTES_WRITE, 372 VDEV_PROP_BYTES_FREE, 373 VDEV_PROP_BYTES_CLAIM, 374 VDEV_PROP_BYTES_TRIM, 375 VDEV_PROP_REMOVING, 376 VDEV_PROP_ALLOCATING, 377 VDEV_PROP_FAILFAST, 378 VDEV_PROP_CHECKSUM_N, 379 VDEV_PROP_CHECKSUM_T, 380 VDEV_PROP_IO_N, 381 VDEV_PROP_IO_T, 382 VDEV_PROP_RAIDZ_EXPANDING, 383 VDEV_PROP_SLOW_IO_N, 384 VDEV_PROP_SLOW_IO_T, 385 VDEV_PROP_TRIM_SUPPORT, 386 VDEV_PROP_TRIM_ERRORS, 387 VDEV_PROP_SLOW_IOS, 388 VDEV_PROP_SIT_OUT, 389 VDEV_PROP_AUTOSIT, 390 VDEV_NUM_PROPS 391 } vdev_prop_t; 392 393 /* 394 * Dataset property functions shared between libzfs and kernel. 395 */ 396 _SYS_FS_ZFS_H const char *zfs_prop_default_string(zfs_prop_t); 397 _SYS_FS_ZFS_H uint64_t zfs_prop_default_numeric(zfs_prop_t); 398 _SYS_FS_ZFS_H boolean_t zfs_prop_readonly(zfs_prop_t); 399 _SYS_FS_ZFS_H boolean_t zfs_prop_visible(zfs_prop_t prop); 400 _SYS_FS_ZFS_H boolean_t zfs_prop_inheritable(zfs_prop_t); 401 _SYS_FS_ZFS_H boolean_t zfs_prop_setonce(zfs_prop_t); 402 _SYS_FS_ZFS_H boolean_t zfs_prop_encryption_key_param(zfs_prop_t); 403 _SYS_FS_ZFS_H boolean_t zfs_prop_valid_keylocation(const char *, boolean_t); 404 _SYS_FS_ZFS_H const char *zfs_prop_to_name(zfs_prop_t); 405 _SYS_FS_ZFS_H zfs_prop_t zfs_name_to_prop(const char *); 406 _SYS_FS_ZFS_H boolean_t zfs_prop_user(const char *); 407 _SYS_FS_ZFS_H boolean_t zfs_prop_userquota(const char *); 408 _SYS_FS_ZFS_H boolean_t zfs_prop_written(const char *); 409 _SYS_FS_ZFS_H int zfs_prop_index_to_string(zfs_prop_t, uint64_t, const char **); 410 _SYS_FS_ZFS_H int zfs_prop_string_to_index(zfs_prop_t, const char *, 411 uint64_t *); 412 _SYS_FS_ZFS_H uint64_t zfs_prop_random_value(zfs_prop_t, uint64_t seed); 413 _SYS_FS_ZFS_H boolean_t zfs_prop_valid_for_type(int, zfs_type_t, boolean_t); 414 415 /* 416 * Pool property functions shared between libzfs and kernel. 417 */ 418 _SYS_FS_ZFS_H zpool_prop_t zpool_name_to_prop(const char *); 419 _SYS_FS_ZFS_H const char *zpool_prop_to_name(zpool_prop_t); 420 _SYS_FS_ZFS_H const char *zpool_prop_default_string(zpool_prop_t); 421 _SYS_FS_ZFS_H uint64_t zpool_prop_default_numeric(zpool_prop_t); 422 _SYS_FS_ZFS_H boolean_t zpool_prop_readonly(zpool_prop_t); 423 _SYS_FS_ZFS_H boolean_t zpool_prop_setonce(zpool_prop_t); 424 _SYS_FS_ZFS_H boolean_t zpool_prop_feature(const char *); 425 _SYS_FS_ZFS_H boolean_t zpool_prop_unsupported(const char *); 426 _SYS_FS_ZFS_H int zpool_prop_index_to_string(zpool_prop_t, uint64_t, 427 const char **); 428 _SYS_FS_ZFS_H int zpool_prop_string_to_index(zpool_prop_t, const char *, 429 uint64_t *); 430 _SYS_FS_ZFS_H uint64_t zpool_prop_random_value(zpool_prop_t, uint64_t seed); 431 432 /* 433 * VDEV property functions shared between libzfs and kernel. 434 */ 435 _SYS_FS_ZFS_H vdev_prop_t vdev_name_to_prop(const char *); 436 _SYS_FS_ZFS_H boolean_t vdev_prop_user(const char *name); 437 _SYS_FS_ZFS_H const char *vdev_prop_to_name(vdev_prop_t); 438 _SYS_FS_ZFS_H const char *vdev_prop_default_string(vdev_prop_t); 439 _SYS_FS_ZFS_H uint64_t vdev_prop_default_numeric(vdev_prop_t); 440 _SYS_FS_ZFS_H boolean_t vdev_prop_readonly(vdev_prop_t prop); 441 _SYS_FS_ZFS_H int vdev_prop_index_to_string(vdev_prop_t, uint64_t, 442 const char **); 443 _SYS_FS_ZFS_H int vdev_prop_string_to_index(vdev_prop_t, const char *, 444 uint64_t *); 445 _SYS_FS_ZFS_H boolean_t zpool_prop_vdev(const char *name); 446 _SYS_FS_ZFS_H uint64_t vdev_prop_random_value(vdev_prop_t prop, uint64_t seed); 447 448 /* 449 * Definitions for the Delegation. 450 */ 451 typedef enum { 452 ZFS_DELEG_WHO_UNKNOWN = 0, 453 ZFS_DELEG_USER = 'u', 454 ZFS_DELEG_USER_SETS = 'U', 455 ZFS_DELEG_GROUP = 'g', 456 ZFS_DELEG_GROUP_SETS = 'G', 457 ZFS_DELEG_EVERYONE = 'e', 458 ZFS_DELEG_EVERYONE_SETS = 'E', 459 ZFS_DELEG_CREATE = 'c', 460 ZFS_DELEG_CREATE_SETS = 'C', 461 ZFS_DELEG_NAMED_SET = 's', 462 ZFS_DELEG_NAMED_SET_SETS = 'S' 463 } zfs_deleg_who_type_t; 464 465 typedef enum { 466 ZFS_DELEG_NONE = 0, 467 ZFS_DELEG_PERM_LOCAL = 1, 468 ZFS_DELEG_PERM_DESCENDENT = 2, 469 ZFS_DELEG_PERM_LOCALDESCENDENT = 3, 470 ZFS_DELEG_PERM_CREATE = 4 471 } zfs_deleg_inherit_t; 472 473 #define ZFS_DELEG_PERM_UID "uid" 474 #define ZFS_DELEG_PERM_GID "gid" 475 #define ZFS_DELEG_PERM_GROUPS "groups" 476 477 #define ZFS_MLSLABEL_DEFAULT "none" 478 479 #define ZFS_SMB_ACL_SRC "src" 480 #define ZFS_SMB_ACL_TARGET "target" 481 482 typedef enum { 483 ZFS_CANMOUNT_OFF = 0, 484 ZFS_CANMOUNT_ON = 1, 485 ZFS_CANMOUNT_NOAUTO = 2 486 } zfs_canmount_type_t; 487 488 typedef enum { 489 ZFS_LOGBIAS_LATENCY = 0, 490 ZFS_LOGBIAS_THROUGHPUT = 1 491 } zfs_logbias_op_t; 492 493 typedef enum zfs_share_op { 494 ZFS_SHARE_NFS = 0, 495 ZFS_UNSHARE_NFS = 1, 496 ZFS_SHARE_SMB = 2, 497 ZFS_UNSHARE_SMB = 3 498 } zfs_share_op_t; 499 500 typedef enum zfs_smb_acl_op { 501 ZFS_SMB_ACL_ADD, 502 ZFS_SMB_ACL_REMOVE, 503 ZFS_SMB_ACL_RENAME, 504 ZFS_SMB_ACL_PURGE 505 } zfs_smb_acl_op_t; 506 507 typedef enum zfs_cache_type { 508 ZFS_CACHE_NONE = 0, 509 ZFS_CACHE_METADATA = 1, 510 ZFS_CACHE_ALL = 2 511 } zfs_cache_type_t; 512 513 typedef enum { 514 ZFS_SYNC_STANDARD = 0, 515 ZFS_SYNC_ALWAYS = 1, 516 ZFS_SYNC_DISABLED = 2 517 } zfs_sync_type_t; 518 519 typedef enum { 520 ZFS_XATTR_OFF = 0, 521 ZFS_XATTR_DIR = 1, 522 ZFS_XATTR_SA = 2 523 } zfs_xattr_type_t; 524 525 typedef enum { 526 ZFS_DNSIZE_LEGACY = 0, 527 ZFS_DNSIZE_AUTO = 1, 528 ZFS_DNSIZE_1K = 1024, 529 ZFS_DNSIZE_2K = 2048, 530 ZFS_DNSIZE_4K = 4096, 531 ZFS_DNSIZE_8K = 8192, 532 ZFS_DNSIZE_16K = 16384 533 } zfs_dnsize_type_t; 534 535 typedef enum { 536 ZFS_REDUNDANT_METADATA_ALL, 537 ZFS_REDUNDANT_METADATA_MOST, 538 ZFS_REDUNDANT_METADATA_SOME, 539 ZFS_REDUNDANT_METADATA_NONE 540 } zfs_redundant_metadata_type_t; 541 542 typedef enum { 543 ZFS_VOLMODE_DEFAULT = 0, 544 ZFS_VOLMODE_GEOM = 1, 545 ZFS_VOLMODE_DEV = 2, 546 ZFS_VOLMODE_NONE = 3 547 } zfs_volmode_t; 548 549 typedef enum { 550 ZFS_DIRECT_DISABLED = 0, 551 ZFS_DIRECT_STANDARD, 552 ZFS_DIRECT_ALWAYS 553 } zfs_direct_t; 554 555 typedef enum zfs_keystatus { 556 ZFS_KEYSTATUS_NONE = 0, 557 ZFS_KEYSTATUS_UNAVAILABLE, 558 ZFS_KEYSTATUS_AVAILABLE, 559 } zfs_keystatus_t; 560 561 typedef enum zfs_keyformat { 562 ZFS_KEYFORMAT_NONE = 0, 563 ZFS_KEYFORMAT_RAW, 564 ZFS_KEYFORMAT_HEX, 565 ZFS_KEYFORMAT_PASSPHRASE, 566 ZFS_KEYFORMAT_FORMATS 567 } zfs_keyformat_t; 568 569 typedef enum zfs_key_location { 570 ZFS_KEYLOCATION_NONE = 0, 571 ZFS_KEYLOCATION_PROMPT, 572 ZFS_KEYLOCATION_URI, 573 ZFS_KEYLOCATION_LOCATIONS 574 } zfs_keylocation_t; 575 576 typedef enum { 577 ZFS_PREFETCH_NONE = 0, 578 ZFS_PREFETCH_METADATA = 1, 579 ZFS_PREFETCH_ALL = 2 580 } zfs_prefetch_type_t; 581 582 #define DEFAULT_PBKDF2_ITERATIONS 350000 583 #define MIN_PBKDF2_ITERATIONS 100000 584 585 /* 586 * On-disk version number. 587 */ 588 #define SPA_VERSION_1 1ULL 589 #define SPA_VERSION_2 2ULL 590 #define SPA_VERSION_3 3ULL 591 #define SPA_VERSION_4 4ULL 592 #define SPA_VERSION_5 5ULL 593 #define SPA_VERSION_6 6ULL 594 #define SPA_VERSION_7 7ULL 595 #define SPA_VERSION_8 8ULL 596 #define SPA_VERSION_9 9ULL 597 #define SPA_VERSION_10 10ULL 598 #define SPA_VERSION_11 11ULL 599 #define SPA_VERSION_12 12ULL 600 #define SPA_VERSION_13 13ULL 601 #define SPA_VERSION_14 14ULL 602 #define SPA_VERSION_15 15ULL 603 #define SPA_VERSION_16 16ULL 604 #define SPA_VERSION_17 17ULL 605 #define SPA_VERSION_18 18ULL 606 #define SPA_VERSION_19 19ULL 607 #define SPA_VERSION_20 20ULL 608 #define SPA_VERSION_21 21ULL 609 #define SPA_VERSION_22 22ULL 610 #define SPA_VERSION_23 23ULL 611 #define SPA_VERSION_24 24ULL 612 #define SPA_VERSION_25 25ULL 613 #define SPA_VERSION_26 26ULL 614 #define SPA_VERSION_27 27ULL 615 #define SPA_VERSION_28 28ULL 616 #define SPA_VERSION_5000 5000ULL 617 618 /* 619 * The incrementing pool version number has been replaced by pool feature 620 * flags. For more details, see zfeature.c. 621 */ 622 #define SPA_VERSION SPA_VERSION_5000 623 #define SPA_VERSION_STRING "5000" 624 625 /* 626 * Symbolic names for the changes that caused a SPA_VERSION switch. 627 * Used in the code when checking for presence or absence of a feature. 628 * Feel free to define multiple symbolic names for each version if there 629 * were multiple changes to on-disk structures during that version. 630 * 631 * NOTE: When checking the current SPA_VERSION in your code, be sure 632 * to use spa_version() since it reports the version of the 633 * last synced uberblock. Checking the in-flight version can 634 * be dangerous in some cases. 635 */ 636 #define SPA_VERSION_INITIAL SPA_VERSION_1 637 #define SPA_VERSION_DITTO_BLOCKS SPA_VERSION_2 638 #define SPA_VERSION_SPARES SPA_VERSION_3 639 #define SPA_VERSION_RAIDZ2 SPA_VERSION_3 640 #define SPA_VERSION_BPOBJ_ACCOUNT SPA_VERSION_3 641 #define SPA_VERSION_RAIDZ_DEFLATE SPA_VERSION_3 642 #define SPA_VERSION_DNODE_BYTES SPA_VERSION_3 643 #define SPA_VERSION_ZPOOL_HISTORY SPA_VERSION_4 644 #define SPA_VERSION_GZIP_COMPRESSION SPA_VERSION_5 645 #define SPA_VERSION_BOOTFS SPA_VERSION_6 646 #define SPA_VERSION_SLOGS SPA_VERSION_7 647 #define SPA_VERSION_DELEGATED_PERMS SPA_VERSION_8 648 #define SPA_VERSION_FUID SPA_VERSION_9 649 #define SPA_VERSION_REFRESERVATION SPA_VERSION_9 650 #define SPA_VERSION_REFQUOTA SPA_VERSION_9 651 #define SPA_VERSION_UNIQUE_ACCURATE SPA_VERSION_9 652 #define SPA_VERSION_L2CACHE SPA_VERSION_10 653 #define SPA_VERSION_NEXT_CLONES SPA_VERSION_11 654 #define SPA_VERSION_ORIGIN SPA_VERSION_11 655 #define SPA_VERSION_DSL_SCRUB SPA_VERSION_11 656 #define SPA_VERSION_SNAP_PROPS SPA_VERSION_12 657 #define SPA_VERSION_USED_BREAKDOWN SPA_VERSION_13 658 #define SPA_VERSION_PASSTHROUGH_X SPA_VERSION_14 659 #define SPA_VERSION_USERSPACE SPA_VERSION_15 660 #define SPA_VERSION_STMF_PROP SPA_VERSION_16 661 #define SPA_VERSION_RAIDZ3 SPA_VERSION_17 662 #define SPA_VERSION_USERREFS SPA_VERSION_18 663 #define SPA_VERSION_HOLES SPA_VERSION_19 664 #define SPA_VERSION_ZLE_COMPRESSION SPA_VERSION_20 665 #define SPA_VERSION_DEDUP SPA_VERSION_21 666 #define SPA_VERSION_RECVD_PROPS SPA_VERSION_22 667 #define SPA_VERSION_SLIM_ZIL SPA_VERSION_23 668 #define SPA_VERSION_SA SPA_VERSION_24 669 #define SPA_VERSION_SCAN SPA_VERSION_25 670 #define SPA_VERSION_DIR_CLONES SPA_VERSION_26 671 #define SPA_VERSION_DEADLISTS SPA_VERSION_26 672 #define SPA_VERSION_FAST_SNAP SPA_VERSION_27 673 #define SPA_VERSION_MULTI_REPLACE SPA_VERSION_28 674 #define SPA_VERSION_BEFORE_FEATURES SPA_VERSION_28 675 #define SPA_VERSION_FEATURES SPA_VERSION_5000 676 677 #define SPA_VERSION_IS_SUPPORTED(v) \ 678 (((v) >= SPA_VERSION_INITIAL && (v) <= SPA_VERSION_BEFORE_FEATURES) || \ 679 ((v) >= SPA_VERSION_FEATURES && (v) <= SPA_VERSION)) 680 681 /* 682 * ZPL version - rev'd whenever an incompatible on-disk format change 683 * occurs. This is independent of SPA/DMU/ZAP versioning. You must 684 * also update the version_table[] and help message in zfs_prop.c. 685 */ 686 #define ZPL_VERSION_1 1ULL 687 #define ZPL_VERSION_2 2ULL 688 #define ZPL_VERSION_3 3ULL 689 #define ZPL_VERSION_4 4ULL 690 #define ZPL_VERSION_5 5ULL 691 #define ZPL_VERSION ZPL_VERSION_5 692 #define ZPL_VERSION_STRING "5" 693 694 #define ZPL_VERSION_INITIAL ZPL_VERSION_1 695 #define ZPL_VERSION_DIRENT_TYPE ZPL_VERSION_2 696 #define ZPL_VERSION_FUID ZPL_VERSION_3 697 #define ZPL_VERSION_NORMALIZATION ZPL_VERSION_3 698 #define ZPL_VERSION_SYSATTR ZPL_VERSION_3 699 #define ZPL_VERSION_USERSPACE ZPL_VERSION_4 700 #define ZPL_VERSION_SA ZPL_VERSION_5 701 702 /* Persistent L2ARC version */ 703 #define L2ARC_PERSISTENT_VERSION_1 1ULL 704 #define L2ARC_PERSISTENT_VERSION L2ARC_PERSISTENT_VERSION_1 705 #define L2ARC_PERSISTENT_VERSION_STRING "1" 706 707 /* Rewind policy information */ 708 #define ZPOOL_NO_REWIND 1 /* No policy - default behavior */ 709 #define ZPOOL_NEVER_REWIND 2 /* Do not search for best txg or rewind */ 710 #define ZPOOL_TRY_REWIND 4 /* Search for best txg, but do not rewind */ 711 #define ZPOOL_DO_REWIND 8 /* Rewind to best txg w/in deferred frees */ 712 #define ZPOOL_EXTREME_REWIND 16 /* Allow extreme measures to find best txg */ 713 #define ZPOOL_REWIND_MASK 28 /* All the possible rewind bits */ 714 #define ZPOOL_REWIND_POLICIES 31 /* All the possible policy bits */ 715 716 typedef struct zpool_load_policy { 717 uint32_t zlp_rewind; /* rewind policy requested */ 718 uint64_t zlp_maxmeta; /* max acceptable meta-data errors */ 719 uint64_t zlp_maxdata; /* max acceptable data errors */ 720 uint64_t zlp_txg; /* specific txg to load */ 721 } zpool_load_policy_t; 722 723 /* 724 * The following are configuration names used in the nvlist describing a pool's 725 * configuration. New on-disk names should be prefixed with "<reversed-DNS>:" 726 * (e.g. "org.openzfs:") to avoid conflicting names being developed 727 * independently. 728 */ 729 #define ZPOOL_CONFIG_VERSION "version" 730 #define ZPOOL_CONFIG_POOL_NAME "name" 731 #define ZPOOL_CONFIG_POOL_STATE "state" 732 #define ZPOOL_CONFIG_POOL_TXG "txg" 733 #define ZPOOL_CONFIG_POOL_GUID "pool_guid" 734 #define ZPOOL_CONFIG_CREATE_TXG "create_txg" 735 #define ZPOOL_CONFIG_TOP_GUID "top_guid" 736 #define ZPOOL_CONFIG_VDEV_TREE "vdev_tree" 737 #define ZPOOL_CONFIG_TYPE "type" 738 #define ZPOOL_CONFIG_CHILDREN "children" 739 #define ZPOOL_CONFIG_ID "id" 740 #define ZPOOL_CONFIG_GUID "guid" 741 #define ZPOOL_CONFIG_INDIRECT_OBJECT "com.delphix:indirect_object" 742 #define ZPOOL_CONFIG_INDIRECT_BIRTHS "com.delphix:indirect_births" 743 #define ZPOOL_CONFIG_PREV_INDIRECT_VDEV "com.delphix:prev_indirect_vdev" 744 #define ZPOOL_CONFIG_PATH "path" 745 #define ZPOOL_CONFIG_DEVID "devid" 746 #define ZPOOL_CONFIG_SPARE_ID "spareid" 747 #define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array" 748 #define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift" 749 #define ZPOOL_CONFIG_ASHIFT "ashift" 750 #define ZPOOL_CONFIG_ASIZE "asize" 751 #define ZPOOL_CONFIG_MIN_ALLOC "min_alloc" 752 #define ZPOOL_CONFIG_MAX_ALLOC "max_alloc" 753 #define ZPOOL_CONFIG_DTL "DTL" 754 #define ZPOOL_CONFIG_SCAN_STATS "scan_stats" /* not stored on disk */ 755 #define ZPOOL_CONFIG_REMOVAL_STATS "removal_stats" /* not stored on disk */ 756 #define ZPOOL_CONFIG_CHECKPOINT_STATS "checkpoint_stats" /* not on disk */ 757 #define ZPOOL_CONFIG_RAIDZ_EXPAND_STATS "raidz_expand_stats" /* not on disk */ 758 #define ZPOOL_CONFIG_VDEV_STATS "vdev_stats" /* not stored on disk */ 759 #define ZPOOL_CONFIG_INDIRECT_SIZE "indirect_size" /* not stored on disk */ 760 761 /* container nvlist of extended stats */ 762 #define ZPOOL_CONFIG_VDEV_STATS_EX "vdev_stats_ex" 763 764 /* Active queue read/write stats */ 765 #define ZPOOL_CONFIG_VDEV_SYNC_R_ACTIVE_QUEUE "vdev_sync_r_active_queue" 766 #define ZPOOL_CONFIG_VDEV_SYNC_W_ACTIVE_QUEUE "vdev_sync_w_active_queue" 767 #define ZPOOL_CONFIG_VDEV_ASYNC_R_ACTIVE_QUEUE "vdev_async_r_active_queue" 768 #define ZPOOL_CONFIG_VDEV_ASYNC_W_ACTIVE_QUEUE "vdev_async_w_active_queue" 769 #define ZPOOL_CONFIG_VDEV_SCRUB_ACTIVE_QUEUE "vdev_async_scrub_active_queue" 770 #define ZPOOL_CONFIG_VDEV_TRIM_ACTIVE_QUEUE "vdev_async_trim_active_queue" 771 #define ZPOOL_CONFIG_VDEV_REBUILD_ACTIVE_QUEUE "vdev_rebuild_active_queue" 772 773 /* Queue sizes */ 774 #define ZPOOL_CONFIG_VDEV_SYNC_R_PEND_QUEUE "vdev_sync_r_pend_queue" 775 #define ZPOOL_CONFIG_VDEV_SYNC_W_PEND_QUEUE "vdev_sync_w_pend_queue" 776 #define ZPOOL_CONFIG_VDEV_ASYNC_R_PEND_QUEUE "vdev_async_r_pend_queue" 777 #define ZPOOL_CONFIG_VDEV_ASYNC_W_PEND_QUEUE "vdev_async_w_pend_queue" 778 #define ZPOOL_CONFIG_VDEV_SCRUB_PEND_QUEUE "vdev_async_scrub_pend_queue" 779 #define ZPOOL_CONFIG_VDEV_TRIM_PEND_QUEUE "vdev_async_trim_pend_queue" 780 #define ZPOOL_CONFIG_VDEV_REBUILD_PEND_QUEUE "vdev_rebuild_pend_queue" 781 782 /* Latency read/write histogram stats */ 783 #define ZPOOL_CONFIG_VDEV_TOT_R_LAT_HISTO "vdev_tot_r_lat_histo" 784 #define ZPOOL_CONFIG_VDEV_TOT_W_LAT_HISTO "vdev_tot_w_lat_histo" 785 #define ZPOOL_CONFIG_VDEV_DISK_R_LAT_HISTO "vdev_disk_r_lat_histo" 786 #define ZPOOL_CONFIG_VDEV_DISK_W_LAT_HISTO "vdev_disk_w_lat_histo" 787 #define ZPOOL_CONFIG_VDEV_SYNC_R_LAT_HISTO "vdev_sync_r_lat_histo" 788 #define ZPOOL_CONFIG_VDEV_SYNC_W_LAT_HISTO "vdev_sync_w_lat_histo" 789 #define ZPOOL_CONFIG_VDEV_ASYNC_R_LAT_HISTO "vdev_async_r_lat_histo" 790 #define ZPOOL_CONFIG_VDEV_ASYNC_W_LAT_HISTO "vdev_async_w_lat_histo" 791 #define ZPOOL_CONFIG_VDEV_SCRUB_LAT_HISTO "vdev_scrub_histo" 792 #define ZPOOL_CONFIG_VDEV_TRIM_LAT_HISTO "vdev_trim_histo" 793 #define ZPOOL_CONFIG_VDEV_REBUILD_LAT_HISTO "vdev_rebuild_histo" 794 795 /* Request size histograms */ 796 #define ZPOOL_CONFIG_VDEV_SYNC_IND_R_HISTO "vdev_sync_ind_r_histo" 797 #define ZPOOL_CONFIG_VDEV_SYNC_IND_W_HISTO "vdev_sync_ind_w_histo" 798 #define ZPOOL_CONFIG_VDEV_ASYNC_IND_R_HISTO "vdev_async_ind_r_histo" 799 #define ZPOOL_CONFIG_VDEV_ASYNC_IND_W_HISTO "vdev_async_ind_w_histo" 800 #define ZPOOL_CONFIG_VDEV_IND_SCRUB_HISTO "vdev_ind_scrub_histo" 801 #define ZPOOL_CONFIG_VDEV_IND_TRIM_HISTO "vdev_ind_trim_histo" 802 #define ZPOOL_CONFIG_VDEV_IND_REBUILD_HISTO "vdev_ind_rebuild_histo" 803 #define ZPOOL_CONFIG_VDEV_SYNC_AGG_R_HISTO "vdev_sync_agg_r_histo" 804 #define ZPOOL_CONFIG_VDEV_SYNC_AGG_W_HISTO "vdev_sync_agg_w_histo" 805 #define ZPOOL_CONFIG_VDEV_ASYNC_AGG_R_HISTO "vdev_async_agg_r_histo" 806 #define ZPOOL_CONFIG_VDEV_ASYNC_AGG_W_HISTO "vdev_async_agg_w_histo" 807 #define ZPOOL_CONFIG_VDEV_AGG_SCRUB_HISTO "vdev_agg_scrub_histo" 808 #define ZPOOL_CONFIG_VDEV_AGG_TRIM_HISTO "vdev_agg_trim_histo" 809 #define ZPOOL_CONFIG_VDEV_AGG_REBUILD_HISTO "vdev_agg_rebuild_histo" 810 811 /* Number of slow IOs */ 812 #define ZPOOL_CONFIG_VDEV_SLOW_IOS "vdev_slow_ios" 813 814 /* Number of Direct I/O write verify errors */ 815 #define ZPOOL_CONFIG_VDEV_DIO_VERIFY_ERRORS "vdev_dio_verify_errors" 816 817 /* vdev enclosure sysfs path */ 818 #define ZPOOL_CONFIG_VDEV_ENC_SYSFS_PATH "vdev_enc_sysfs_path" 819 820 #define ZPOOL_CONFIG_WHOLE_DISK "whole_disk" 821 #define ZPOOL_CONFIG_ERRCOUNT "error_count" 822 #define ZPOOL_CONFIG_NOT_PRESENT "not_present" 823 #define ZPOOL_CONFIG_SPARES "spares" 824 #define ZPOOL_CONFIG_IS_SPARE "is_spare" 825 #define ZPOOL_CONFIG_NPARITY "nparity" 826 #define ZPOOL_CONFIG_RAIDZ_EXPANDING "raidz_expanding" 827 #define ZPOOL_CONFIG_RAIDZ_EXPAND_TXGS "raidz_expand_txgs" 828 #define ZPOOL_CONFIG_HOSTID "hostid" 829 #define ZPOOL_CONFIG_HOSTNAME "hostname" 830 #define ZPOOL_CONFIG_LOADED_TIME "initial_load_time" 831 #define ZPOOL_CONFIG_UNSPARE "unspare" 832 #define ZPOOL_CONFIG_PHYS_PATH "phys_path" 833 #define ZPOOL_CONFIG_IS_LOG "is_log" 834 #define ZPOOL_CONFIG_L2CACHE "l2cache" 835 #define ZPOOL_CONFIG_HOLE_ARRAY "hole_array" 836 #define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children" 837 #define ZPOOL_CONFIG_IS_HOLE "is_hole" 838 #define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram" 839 #define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats" 840 #define ZPOOL_CONFIG_DDT_STATS "ddt_stats" 841 #define ZPOOL_CONFIG_SPLIT "splitcfg" 842 #define ZPOOL_CONFIG_ORIG_GUID "orig_guid" 843 #define ZPOOL_CONFIG_SPLIT_GUID "split_guid" 844 #define ZPOOL_CONFIG_SPLIT_LIST "guid_list" 845 #define ZPOOL_CONFIG_NONALLOCATING "non_allocating" 846 #define ZPOOL_CONFIG_REMOVING "removing" 847 #define ZPOOL_CONFIG_RESILVER_TXG "resilver_txg" 848 #define ZPOOL_CONFIG_REBUILD_TXG "rebuild_txg" 849 #define ZPOOL_CONFIG_COMMENT "comment" 850 #define ZPOOL_CONFIG_SUSPENDED "suspended" /* not stored on disk */ 851 #define ZPOOL_CONFIG_SUSPENDED_REASON "suspended_reason" /* not stored */ 852 #define ZPOOL_CONFIG_TIMESTAMP "timestamp" /* not stored on disk */ 853 #define ZPOOL_CONFIG_BOOTFS "bootfs" /* not stored on disk */ 854 #define ZPOOL_CONFIG_MISSING_DEVICES "missing_vdevs" /* not stored on disk */ 855 #define ZPOOL_CONFIG_LOAD_INFO "load_info" /* not stored on disk */ 856 #define ZPOOL_CONFIG_REWIND_INFO "rewind_info" /* not stored on disk */ 857 #define ZPOOL_CONFIG_UNSUP_FEAT "unsup_feat" /* not stored on disk */ 858 #define ZPOOL_CONFIG_ENABLED_FEAT "enabled_feat" /* not stored on disk */ 859 #define ZPOOL_CONFIG_CAN_RDONLY "can_rdonly" /* not stored on disk */ 860 #define ZPOOL_CONFIG_FEATURES_FOR_READ "features_for_read" 861 #define ZPOOL_CONFIG_FEATURE_STATS "feature_stats" /* not stored on disk */ 862 #define ZPOOL_CONFIG_ERRATA "errata" /* not stored on disk */ 863 #define ZPOOL_CONFIG_VDEV_ROOT_ZAP "com.klarasystems:vdev_zap_root" 864 #define ZPOOL_CONFIG_VDEV_TOP_ZAP "com.delphix:vdev_zap_top" 865 #define ZPOOL_CONFIG_VDEV_LEAF_ZAP "com.delphix:vdev_zap_leaf" 866 #define ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS "com.delphix:has_per_vdev_zaps" 867 #define ZPOOL_CONFIG_RESILVER_DEFER "com.datto:resilver_defer" 868 #define ZPOOL_CONFIG_CACHEFILE "cachefile" /* not stored on disk */ 869 #define ZPOOL_CONFIG_MMP_STATE "mmp_state" /* not stored on disk */ 870 #define ZPOOL_CONFIG_MMP_TXG "mmp_txg" /* not stored on disk */ 871 #define ZPOOL_CONFIG_MMP_SEQ "mmp_seq" /* not stored on disk */ 872 #define ZPOOL_CONFIG_MMP_HOSTNAME "mmp_hostname" /* not stored on disk */ 873 #define ZPOOL_CONFIG_MMP_HOSTID "mmp_hostid" /* not stored on disk */ 874 #define ZPOOL_CONFIG_ALLOCATION_BIAS "alloc_bias" /* not stored on disk */ 875 #define ZPOOL_CONFIG_EXPANSION_TIME "expansion_time" /* not stored */ 876 #define ZPOOL_CONFIG_REBUILD_STATS "org.openzfs:rebuild_stats" 877 #define ZPOOL_CONFIG_COMPATIBILITY "compatibility" 878 879 /* 880 * The persistent vdev state is stored as separate values rather than a single 881 * 'vdev_state' entry. This is because a device can be in multiple states, such 882 * as offline and degraded. 883 */ 884 #define ZPOOL_CONFIG_OFFLINE "offline" 885 #define ZPOOL_CONFIG_FAULTED "faulted" 886 #define ZPOOL_CONFIG_DEGRADED "degraded" 887 #define ZPOOL_CONFIG_REMOVED "removed" 888 #define ZPOOL_CONFIG_FRU "fru" 889 #define ZPOOL_CONFIG_AUX_STATE "aux_state" 890 891 /* Pool load policy parameters */ 892 #define ZPOOL_LOAD_POLICY "load-policy" 893 #define ZPOOL_LOAD_REWIND_POLICY "load-rewind-policy" 894 #define ZPOOL_LOAD_REQUEST_TXG "load-request-txg" 895 #define ZPOOL_LOAD_META_THRESH "load-meta-thresh" 896 #define ZPOOL_LOAD_DATA_THRESH "load-data-thresh" 897 898 /* Rewind data discovered */ 899 #define ZPOOL_CONFIG_LOAD_TIME "rewind_txg_ts" 900 #define ZPOOL_CONFIG_LOAD_META_ERRORS "verify_meta_errors" 901 #define ZPOOL_CONFIG_LOAD_DATA_ERRORS "verify_data_errors" 902 #define ZPOOL_CONFIG_REWIND_TIME "seconds_of_rewind" 903 904 /* dRAID configuration */ 905 #define ZPOOL_CONFIG_DRAID_NDATA "draid_ndata" 906 #define ZPOOL_CONFIG_DRAID_NSPARES "draid_nspares" 907 #define ZPOOL_CONFIG_DRAID_NGROUPS "draid_ngroups" 908 909 #define VDEV_TYPE_ROOT "root" 910 #define VDEV_TYPE_MIRROR "mirror" 911 #define VDEV_TYPE_REPLACING "replacing" 912 #define VDEV_TYPE_RAIDZ "raidz" 913 #define VDEV_TYPE_DRAID "draid" 914 #define VDEV_TYPE_DRAID_SPARE "dspare" 915 #define VDEV_TYPE_DISK "disk" 916 #define VDEV_TYPE_FILE "file" 917 #define VDEV_TYPE_MISSING "missing" 918 #define VDEV_TYPE_HOLE "hole" 919 #define VDEV_TYPE_SPARE "spare" 920 #define VDEV_TYPE_LOG "log" 921 #define VDEV_TYPE_L2CACHE "l2cache" 922 #define VDEV_TYPE_INDIRECT "indirect" 923 924 #define VDEV_RAIDZ_MAXPARITY 3 925 926 #define VDEV_DRAID_MAXPARITY 3 927 #define VDEV_DRAID_MIN_CHILDREN 2 928 #define VDEV_DRAID_MAX_CHILDREN UINT8_MAX 929 930 /* VDEV_TOP_ZAP_* are used in top-level vdev ZAP objects. */ 931 #define VDEV_TOP_ZAP_INDIRECT_OBSOLETE_SM \ 932 "com.delphix:indirect_obsolete_sm" 933 #define VDEV_TOP_ZAP_OBSOLETE_COUNTS_ARE_PRECISE \ 934 "com.delphix:obsolete_counts_are_precise" 935 #define VDEV_TOP_ZAP_POOL_CHECKPOINT_SM \ 936 "com.delphix:pool_checkpoint_sm" 937 #define VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS \ 938 "com.delphix:ms_unflushed_phys_txgs" 939 940 #define VDEV_TOP_ZAP_VDEV_REBUILD_PHYS \ 941 "org.openzfs:vdev_rebuild" 942 943 #define VDEV_TOP_ZAP_ALLOCATION_BIAS \ 944 "org.zfsonlinux:allocation_bias" 945 946 #define VDEV_TOP_ZAP_RAIDZ_EXPAND_STATE \ 947 "org.openzfs:raidz_expand_state" 948 #define VDEV_TOP_ZAP_RAIDZ_EXPAND_START_TIME \ 949 "org.openzfs:raidz_expand_start_time" 950 #define VDEV_TOP_ZAP_RAIDZ_EXPAND_END_TIME \ 951 "org.openzfs:raidz_expand_end_time" 952 #define VDEV_TOP_ZAP_RAIDZ_EXPAND_BYTES_COPIED \ 953 "org.openzfs:raidz_expand_bytes_copied" 954 955 /* vdev metaslab allocation bias */ 956 #define VDEV_ALLOC_BIAS_LOG "log" 957 #define VDEV_ALLOC_BIAS_SPECIAL "special" 958 #define VDEV_ALLOC_BIAS_DEDUP "dedup" 959 960 /* vdev initialize state */ 961 #define VDEV_LEAF_ZAP_INITIALIZE_LAST_OFFSET \ 962 "com.delphix:next_offset_to_initialize" 963 #define VDEV_LEAF_ZAP_INITIALIZE_STATE \ 964 "com.delphix:vdev_initialize_state" 965 #define VDEV_LEAF_ZAP_INITIALIZE_ACTION_TIME \ 966 "com.delphix:vdev_initialize_action_time" 967 968 /* vdev TRIM state */ 969 #define VDEV_LEAF_ZAP_TRIM_LAST_OFFSET \ 970 "org.zfsonlinux:next_offset_to_trim" 971 #define VDEV_LEAF_ZAP_TRIM_STATE \ 972 "org.zfsonlinux:vdev_trim_state" 973 #define VDEV_LEAF_ZAP_TRIM_ACTION_TIME \ 974 "org.zfsonlinux:vdev_trim_action_time" 975 #define VDEV_LEAF_ZAP_TRIM_RATE \ 976 "org.zfsonlinux:vdev_trim_rate" 977 #define VDEV_LEAF_ZAP_TRIM_PARTIAL \ 978 "org.zfsonlinux:vdev_trim_partial" 979 #define VDEV_LEAF_ZAP_TRIM_SECURE \ 980 "org.zfsonlinux:vdev_trim_secure" 981 982 /* 983 * This is needed in userland to report the minimum necessary device size. 984 */ 985 #define SPA_MINDEVSIZE (64ULL << 20) 986 987 /* 988 * Set if the fragmentation has not yet been calculated. This can happen 989 * because the space maps have not been upgraded or the histogram feature 990 * is not enabled. 991 */ 992 #define ZFS_FRAG_INVALID UINT64_MAX 993 994 /* 995 * The location of the pool configuration repository, shared between kernel and 996 * userland. 997 */ 998 #define ZPOOL_CACHE_BOOT "/boot/zfs/zpool.cache" 999 #define ZPOOL_CACHE "/etc/zfs/zpool.cache" 1000 /* 1001 * Settings for zpool compatibility features files 1002 */ 1003 #define ZPOOL_SYSCONF_COMPAT_D SYSCONFDIR "/zfs/compatibility.d" 1004 #define ZPOOL_DATA_COMPAT_D PKGDATADIR "/compatibility.d" 1005 #define ZPOOL_COMPAT_MAXSIZE 16384 1006 1007 /* 1008 * Hard-wired compatibility settings 1009 */ 1010 #define ZPOOL_COMPAT_LEGACY "legacy" 1011 #define ZPOOL_COMPAT_OFF "off" 1012 1013 /* 1014 * vdev states are ordered from least to most healthy. 1015 * A vdev that's CANT_OPEN or below is considered unusable. 1016 */ 1017 typedef enum vdev_state { 1018 VDEV_STATE_UNKNOWN = 0, /* Uninitialized vdev */ 1019 VDEV_STATE_CLOSED, /* Not currently open */ 1020 VDEV_STATE_OFFLINE, /* Not allowed to open */ 1021 VDEV_STATE_REMOVED, /* Explicitly removed from system */ 1022 VDEV_STATE_CANT_OPEN, /* Tried to open, but failed */ 1023 VDEV_STATE_FAULTED, /* External request to fault device */ 1024 VDEV_STATE_DEGRADED, /* Replicated vdev with unhealthy kids */ 1025 VDEV_STATE_HEALTHY /* Presumed good */ 1026 } vdev_state_t; 1027 1028 #define VDEV_STATE_ONLINE VDEV_STATE_HEALTHY 1029 1030 /* 1031 * vdev aux states. When a vdev is in the CANT_OPEN state, the aux field 1032 * of the vdev stats structure uses these constants to distinguish why. 1033 */ 1034 typedef enum vdev_aux { 1035 VDEV_AUX_NONE, /* no error */ 1036 VDEV_AUX_OPEN_FAILED, /* ldi_open_*() or vn_open() failed */ 1037 VDEV_AUX_CORRUPT_DATA, /* bad label or disk contents */ 1038 VDEV_AUX_NO_REPLICAS, /* insufficient number of replicas */ 1039 VDEV_AUX_BAD_GUID_SUM, /* vdev guid sum doesn't match */ 1040 VDEV_AUX_TOO_SMALL, /* vdev size is too small */ 1041 VDEV_AUX_BAD_LABEL, /* the label is OK but invalid */ 1042 VDEV_AUX_VERSION_NEWER, /* on-disk version is too new */ 1043 VDEV_AUX_VERSION_OLDER, /* on-disk version is too old */ 1044 VDEV_AUX_UNSUP_FEAT, /* unsupported features */ 1045 VDEV_AUX_SPARED, /* hot spare used in another pool */ 1046 VDEV_AUX_ERR_EXCEEDED, /* too many errors */ 1047 VDEV_AUX_IO_FAILURE, /* experienced I/O failure */ 1048 VDEV_AUX_BAD_LOG, /* cannot read log chain(s) */ 1049 VDEV_AUX_EXTERNAL, /* external diagnosis or forced fault */ 1050 VDEV_AUX_SPLIT_POOL, /* vdev was split off into another pool */ 1051 VDEV_AUX_BAD_ASHIFT, /* vdev ashift is invalid */ 1052 VDEV_AUX_EXTERNAL_PERSIST, /* persistent forced fault */ 1053 VDEV_AUX_ACTIVE, /* vdev active on a different host */ 1054 VDEV_AUX_CHILDREN_OFFLINE, /* all children are offline */ 1055 VDEV_AUX_ASHIFT_TOO_BIG, /* vdev's min block size is too large */ 1056 } vdev_aux_t; 1057 1058 /* 1059 * pool state. The following states are written to disk as part of the normal 1060 * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining 1061 * states are software abstractions used at various levels to communicate 1062 * pool state. 1063 */ 1064 typedef enum pool_state { 1065 POOL_STATE_ACTIVE = 0, /* In active use */ 1066 POOL_STATE_EXPORTED, /* Explicitly exported */ 1067 POOL_STATE_DESTROYED, /* Explicitly destroyed */ 1068 POOL_STATE_SPARE, /* Reserved for hot spare use */ 1069 POOL_STATE_L2CACHE, /* Level 2 ARC device */ 1070 POOL_STATE_UNINITIALIZED, /* Internal spa_t state */ 1071 POOL_STATE_UNAVAIL, /* Internal libzfs state */ 1072 POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */ 1073 } pool_state_t; 1074 1075 /* 1076 * mmp state. The following states provide additional detail describing 1077 * why a pool couldn't be safely imported. 1078 */ 1079 typedef enum mmp_state { 1080 MMP_STATE_ACTIVE = 0, /* In active use */ 1081 MMP_STATE_INACTIVE, /* Inactive and safe to import */ 1082 MMP_STATE_NO_HOSTID /* System hostid is not set */ 1083 } mmp_state_t; 1084 1085 /* 1086 * Scan Functions. 1087 */ 1088 typedef enum pool_scan_func { 1089 POOL_SCAN_NONE, 1090 POOL_SCAN_SCRUB, 1091 POOL_SCAN_RESILVER, 1092 POOL_SCAN_ERRORSCRUB, 1093 POOL_SCAN_FUNCS 1094 } pool_scan_func_t; 1095 1096 /* 1097 * Used to control scrub pause and resume. 1098 */ 1099 typedef enum pool_scrub_cmd { 1100 POOL_SCRUB_NORMAL = 0, 1101 POOL_SCRUB_PAUSE, 1102 POOL_SCRUB_FROM_LAST_TXG, 1103 POOL_SCRUB_FLAGS_END 1104 } pool_scrub_cmd_t; 1105 1106 typedef enum { 1107 CS_NONE, 1108 CS_CHECKPOINT_EXISTS, 1109 CS_CHECKPOINT_DISCARDING, 1110 CS_NUM_STATES 1111 } checkpoint_state_t; 1112 1113 typedef struct pool_checkpoint_stat { 1114 uint64_t pcs_state; /* checkpoint_state_t */ 1115 uint64_t pcs_start_time; /* time checkpoint/discard started */ 1116 uint64_t pcs_space; /* checkpointed space */ 1117 } pool_checkpoint_stat_t; 1118 1119 /* 1120 * ZIO types. Needed to interpret vdev statistics below. 1121 */ 1122 typedef enum zio_type { 1123 ZIO_TYPE_NULL = 0, 1124 ZIO_TYPE_READ, 1125 ZIO_TYPE_WRITE, 1126 ZIO_TYPE_FREE, 1127 ZIO_TYPE_CLAIM, 1128 ZIO_TYPE_FLUSH, 1129 ZIO_TYPE_TRIM, 1130 ZIO_TYPES 1131 } zio_type_t; 1132 1133 /* 1134 * Compatibility: _IOCTL was renamed to _FLUSH; keep the old name available to 1135 * user programs. 1136 */ 1137 #define ZIO_TYPE_IOCTL ZIO_TYPE_FLUSH 1138 1139 /* 1140 * ZIO priority types. Needed to interpret vdev statistics below. 1141 * 1142 * NOTE: PLEASE UPDATE THE ENUM STRINGS IN zfs_valstr.c IF YOU ADD ANOTHER 1143 * VALUE. 1144 */ 1145 typedef enum zio_priority { 1146 ZIO_PRIORITY_SYNC_READ, 1147 ZIO_PRIORITY_SYNC_WRITE, /* ZIL */ 1148 ZIO_PRIORITY_ASYNC_READ, /* prefetch */ 1149 ZIO_PRIORITY_ASYNC_WRITE, /* spa_sync() */ 1150 ZIO_PRIORITY_SCRUB, /* asynchronous scrub/resilver reads */ 1151 ZIO_PRIORITY_REMOVAL, /* reads/writes for vdev removal */ 1152 ZIO_PRIORITY_INITIALIZING, /* initializing I/O */ 1153 ZIO_PRIORITY_TRIM, /* trim I/O (discard) */ 1154 ZIO_PRIORITY_REBUILD, /* reads/writes for vdev rebuild */ 1155 ZIO_PRIORITY_NUM_QUEUEABLE, 1156 ZIO_PRIORITY_NOW, /* non-queued i/os (e.g. free) */ 1157 } zio_priority_t; 1158 1159 /* 1160 * Pool statistics. Note: all fields should be 64-bit because this 1161 * is passed between kernel and userland as an nvlist uint64 array. 1162 */ 1163 typedef struct pool_scan_stat { 1164 /* values stored on disk */ 1165 uint64_t pss_func; /* pool_scan_func_t */ 1166 uint64_t pss_state; /* dsl_scan_state_t */ 1167 uint64_t pss_start_time; /* scan start time */ 1168 uint64_t pss_end_time; /* scan end time */ 1169 uint64_t pss_to_examine; /* total bytes to scan */ 1170 uint64_t pss_examined; /* total bytes located by scanner */ 1171 uint64_t pss_skipped; /* total bytes skipped by scanner */ 1172 uint64_t pss_processed; /* total processed bytes */ 1173 uint64_t pss_errors; /* scan errors */ 1174 1175 /* values not stored on disk */ 1176 uint64_t pss_pass_exam; /* examined bytes per scan pass */ 1177 uint64_t pss_pass_start; /* start time of a scan pass */ 1178 uint64_t pss_pass_scrub_pause; /* pause time of a scrub pass */ 1179 /* cumulative time scrub spent paused, needed for rate calculation */ 1180 uint64_t pss_pass_scrub_spent_paused; 1181 uint64_t pss_pass_issued; /* issued bytes per scan pass */ 1182 uint64_t pss_issued; /* total bytes checked by scanner */ 1183 1184 /* error scrub values stored on disk */ 1185 uint64_t pss_error_scrub_func; /* pool_scan_func_t */ 1186 uint64_t pss_error_scrub_state; /* dsl_scan_state_t */ 1187 uint64_t pss_error_scrub_start; /* error scrub start time */ 1188 uint64_t pss_error_scrub_end; /* error scrub end time */ 1189 uint64_t pss_error_scrub_examined; /* error blocks issued I/O */ 1190 /* error blocks to be issued I/O */ 1191 uint64_t pss_error_scrub_to_be_examined; 1192 1193 /* error scrub values not stored on disk */ 1194 /* error scrub pause time in milliseconds */ 1195 uint64_t pss_pass_error_scrub_pause; 1196 1197 } pool_scan_stat_t; 1198 1199 typedef struct pool_removal_stat { 1200 uint64_t prs_state; /* dsl_scan_state_t */ 1201 uint64_t prs_removing_vdev; 1202 uint64_t prs_start_time; 1203 uint64_t prs_end_time; 1204 uint64_t prs_to_copy; /* bytes that need to be copied */ 1205 uint64_t prs_copied; /* bytes copied so far */ 1206 /* 1207 * bytes of memory used for indirect mappings. 1208 * This includes all removed vdevs. 1209 */ 1210 uint64_t prs_mapping_memory; 1211 } pool_removal_stat_t; 1212 1213 typedef struct pool_raidz_expand_stat { 1214 uint64_t pres_state; /* dsl_scan_state_t */ 1215 uint64_t pres_expanding_vdev; 1216 uint64_t pres_start_time; 1217 uint64_t pres_end_time; 1218 uint64_t pres_to_reflow; /* bytes that need to be moved */ 1219 uint64_t pres_reflowed; /* bytes moved so far */ 1220 uint64_t pres_waiting_for_resilver; 1221 } pool_raidz_expand_stat_t; 1222 1223 typedef enum dsl_scan_state { 1224 DSS_NONE, 1225 DSS_SCANNING, 1226 DSS_FINISHED, 1227 DSS_CANCELED, 1228 DSS_ERRORSCRUBBING, 1229 DSS_NUM_STATES 1230 } dsl_scan_state_t; 1231 1232 typedef struct vdev_rebuild_stat { 1233 uint64_t vrs_state; /* vdev_rebuild_state_t */ 1234 uint64_t vrs_start_time; /* time_t */ 1235 uint64_t vrs_end_time; /* time_t */ 1236 uint64_t vrs_scan_time_ms; /* total run time (millisecs) */ 1237 uint64_t vrs_bytes_scanned; /* allocated bytes scanned */ 1238 uint64_t vrs_bytes_issued; /* read bytes issued */ 1239 uint64_t vrs_bytes_rebuilt; /* rebuilt bytes */ 1240 uint64_t vrs_bytes_est; /* total bytes to scan */ 1241 uint64_t vrs_errors; /* scanning errors */ 1242 uint64_t vrs_pass_time_ms; /* pass run time (millisecs) */ 1243 uint64_t vrs_pass_bytes_scanned; /* bytes scanned since start/resume */ 1244 uint64_t vrs_pass_bytes_issued; /* bytes rebuilt since start/resume */ 1245 uint64_t vrs_pass_bytes_skipped; /* bytes skipped since start/resume */ 1246 } vdev_rebuild_stat_t; 1247 1248 /* 1249 * Errata described by https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-ER. 1250 * The ordering of this enum must be maintained to ensure the errata identifiers 1251 * map to the correct documentation. New errata may only be appended to the 1252 * list and must contain corresponding documentation at the above link. 1253 */ 1254 typedef enum zpool_errata { 1255 ZPOOL_ERRATA_NONE, 1256 ZPOOL_ERRATA_ZOL_2094_SCRUB, 1257 ZPOOL_ERRATA_ZOL_2094_ASYNC_DESTROY, 1258 ZPOOL_ERRATA_ZOL_6845_ENCRYPTION, 1259 ZPOOL_ERRATA_ZOL_8308_ENCRYPTION, 1260 } zpool_errata_t; 1261 1262 /* 1263 * Vdev statistics. Note: all fields should be 64-bit because this 1264 * is passed between kernel and user land as an nvlist uint64 array. 1265 * 1266 * The vs_ops[] and vs_bytes[] arrays must always be an array size of 6 in 1267 * order to keep subsequent members at their known fixed offsets. When 1268 * adding a new field it must be added to the end the structure. 1269 */ 1270 #define VS_ZIO_TYPES 6 1271 1272 typedef struct vdev_stat { 1273 hrtime_t vs_timestamp; /* time since vdev load */ 1274 uint64_t vs_state; /* vdev state */ 1275 uint64_t vs_aux; /* see vdev_aux_t */ 1276 uint64_t vs_alloc; /* space allocated */ 1277 uint64_t vs_space; /* total capacity */ 1278 uint64_t vs_dspace; /* deflated capacity */ 1279 uint64_t vs_rsize; /* replaceable dev size */ 1280 uint64_t vs_esize; /* expandable dev size */ 1281 uint64_t vs_ops[VS_ZIO_TYPES]; /* operation count */ 1282 uint64_t vs_bytes[VS_ZIO_TYPES]; /* bytes read/written */ 1283 uint64_t vs_read_errors; /* read errors */ 1284 uint64_t vs_write_errors; /* write errors */ 1285 uint64_t vs_checksum_errors; /* checksum errors */ 1286 uint64_t vs_initialize_errors; /* initializing errors */ 1287 uint64_t vs_self_healed; /* self-healed bytes */ 1288 uint64_t vs_scan_removing; /* removing? */ 1289 uint64_t vs_scan_processed; /* scan processed bytes */ 1290 uint64_t vs_fragmentation; /* device fragmentation */ 1291 uint64_t vs_initialize_bytes_done; /* bytes initialized */ 1292 uint64_t vs_initialize_bytes_est; /* total bytes to initialize */ 1293 uint64_t vs_initialize_state; /* vdev_initializing_state_t */ 1294 uint64_t vs_initialize_action_time; /* time_t */ 1295 uint64_t vs_checkpoint_space; /* checkpoint-consumed space */ 1296 uint64_t vs_resilver_deferred; /* resilver deferred */ 1297 uint64_t vs_slow_ios; /* slow IOs */ 1298 uint64_t vs_trim_errors; /* trimming errors */ 1299 uint64_t vs_trim_notsup; /* supported by device */ 1300 uint64_t vs_trim_bytes_done; /* bytes trimmed */ 1301 uint64_t vs_trim_bytes_est; /* total bytes to trim */ 1302 uint64_t vs_trim_state; /* vdev_trim_state_t */ 1303 uint64_t vs_trim_action_time; /* time_t */ 1304 uint64_t vs_rebuild_processed; /* bytes rebuilt */ 1305 uint64_t vs_configured_ashift; /* TLV vdev_ashift */ 1306 uint64_t vs_logical_ashift; /* vdev_logical_ashift */ 1307 uint64_t vs_physical_ashift; /* vdev_physical_ashift */ 1308 uint64_t vs_noalloc; /* allocations halted? */ 1309 uint64_t vs_pspace; /* physical capacity */ 1310 uint64_t vs_dio_verify_errors; /* DIO write verify errors */ 1311 } vdev_stat_t; 1312 1313 #define VDEV_STAT_VALID(field, uint64_t_field_count) \ 1314 ((uint64_t_field_count * sizeof (uint64_t)) >= \ 1315 (offsetof(vdev_stat_t, field) + sizeof (((vdev_stat_t *)NULL)->field))) 1316 1317 /* 1318 * Extended stats 1319 * 1320 * These are stats which aren't included in the original iostat output. For 1321 * convenience, they are grouped together in vdev_stat_ex, although each stat 1322 * is individually exported as an nvlist. 1323 */ 1324 typedef struct vdev_stat_ex { 1325 /* Number of ZIOs issued to disk and waiting to finish */ 1326 uint64_t vsx_active_queue[ZIO_PRIORITY_NUM_QUEUEABLE]; 1327 1328 /* Number of ZIOs pending to be issued to disk */ 1329 uint64_t vsx_pend_queue[ZIO_PRIORITY_NUM_QUEUEABLE]; 1330 1331 /* 1332 * Below are the histograms for various latencies. Buckets are in 1333 * units of nanoseconds. 1334 */ 1335 1336 /* 1337 * 2^37 nanoseconds = 134s. Timeouts will probably start kicking in 1338 * before this. 1339 */ 1340 #define VDEV_L_HISTO_BUCKETS 37 /* Latency histo buckets */ 1341 #define VDEV_RQ_HISTO_BUCKETS 25 /* Request size histo buckets */ 1342 1343 /* Amount of time in ZIO queue (ns) */ 1344 uint64_t vsx_queue_histo[ZIO_PRIORITY_NUM_QUEUEABLE] 1345 [VDEV_L_HISTO_BUCKETS]; 1346 1347 /* Total ZIO latency (ns). Includes queuing and disk access time */ 1348 uint64_t vsx_total_histo[ZIO_TYPES][VDEV_L_HISTO_BUCKETS]; 1349 1350 /* Amount of time to read/write the disk (ns) */ 1351 uint64_t vsx_disk_histo[ZIO_TYPES][VDEV_L_HISTO_BUCKETS]; 1352 1353 /* "lookup the bucket for a value" histogram macros */ 1354 #define HISTO(val, buckets) (val != 0 ? MIN(highbit64(val) - 1, \ 1355 buckets - 1) : 0) 1356 #define L_HISTO(a) HISTO(a, VDEV_L_HISTO_BUCKETS) 1357 #define RQ_HISTO(a) HISTO(a, VDEV_RQ_HISTO_BUCKETS) 1358 1359 /* Physical IO histogram */ 1360 uint64_t vsx_ind_histo[ZIO_PRIORITY_NUM_QUEUEABLE] 1361 [VDEV_RQ_HISTO_BUCKETS]; 1362 1363 /* Delegated (aggregated) physical IO histogram */ 1364 uint64_t vsx_agg_histo[ZIO_PRIORITY_NUM_QUEUEABLE] 1365 [VDEV_RQ_HISTO_BUCKETS]; 1366 1367 } vdev_stat_ex_t; 1368 1369 /* 1370 * Initialize functions. 1371 */ 1372 typedef enum pool_initialize_func { 1373 POOL_INITIALIZE_START, 1374 POOL_INITIALIZE_CANCEL, 1375 POOL_INITIALIZE_SUSPEND, 1376 POOL_INITIALIZE_UNINIT, 1377 POOL_INITIALIZE_FUNCS 1378 } pool_initialize_func_t; 1379 1380 /* 1381 * TRIM functions. 1382 */ 1383 typedef enum pool_trim_func { 1384 POOL_TRIM_START, 1385 POOL_TRIM_CANCEL, 1386 POOL_TRIM_SUSPEND, 1387 POOL_TRIM_FUNCS 1388 } pool_trim_func_t; 1389 1390 /* 1391 * DDT statistics. Note: all fields should be 64-bit because this 1392 * is passed between kernel and userland as an nvlist uint64 array. 1393 */ 1394 typedef struct ddt_object { 1395 uint64_t ddo_count; /* number of elements in ddt */ 1396 uint64_t ddo_dspace; /* size of ddt on disk */ 1397 uint64_t ddo_mspace; /* size of ddt in-core */ 1398 } ddt_object_t; 1399 1400 typedef struct ddt_stat { 1401 uint64_t dds_blocks; /* blocks */ 1402 uint64_t dds_lsize; /* logical size */ 1403 uint64_t dds_psize; /* physical size */ 1404 uint64_t dds_dsize; /* deflated allocated size */ 1405 uint64_t dds_ref_blocks; /* referenced blocks */ 1406 uint64_t dds_ref_lsize; /* referenced lsize * refcnt */ 1407 uint64_t dds_ref_psize; /* referenced psize * refcnt */ 1408 uint64_t dds_ref_dsize; /* referenced dsize * refcnt */ 1409 } ddt_stat_t; 1410 1411 typedef struct ddt_histogram { 1412 ddt_stat_t ddh_stat[64]; /* power-of-two histogram buckets */ 1413 } ddt_histogram_t; 1414 1415 #define ZVOL_DRIVER "zvol" 1416 #define ZFS_DRIVER "zfs" 1417 #define ZFS_DEV "/dev/zfs" 1418 #define ZFS_DEVDIR "/dev" 1419 1420 #define ZFS_SUPER_MAGIC 0x2fc12fc1 1421 1422 /* general zvol path */ 1423 #define ZVOL_DIR "/dev/zvol/" 1424 1425 #define ZVOL_MAJOR 230 1426 #define ZVOL_MINOR_BITS 4 1427 #define ZVOL_MINOR_MASK ((1U << ZVOL_MINOR_BITS) - 1) 1428 #define ZVOL_MINORS (1 << 4) 1429 #define ZVOL_DEV_NAME "zd" 1430 1431 #define ZVOL_PROP_NAME "name" 1432 #define ZVOL_DEFAULT_BLOCKSIZE 16384 1433 1434 typedef enum { 1435 VDEV_INITIALIZE_NONE, 1436 VDEV_INITIALIZE_ACTIVE, 1437 VDEV_INITIALIZE_CANCELED, 1438 VDEV_INITIALIZE_SUSPENDED, 1439 VDEV_INITIALIZE_COMPLETE 1440 } vdev_initializing_state_t; 1441 1442 typedef enum { 1443 VDEV_TRIM_NONE, 1444 VDEV_TRIM_ACTIVE, 1445 VDEV_TRIM_CANCELED, 1446 VDEV_TRIM_SUSPENDED, 1447 VDEV_TRIM_COMPLETE, 1448 } vdev_trim_state_t; 1449 1450 typedef enum { 1451 VDEV_REBUILD_NONE, 1452 VDEV_REBUILD_ACTIVE, 1453 VDEV_REBUILD_CANCELED, 1454 VDEV_REBUILD_COMPLETE, 1455 } vdev_rebuild_state_t; 1456 1457 /* 1458 * nvlist name constants. Facilitate restricting snapshot iteration range for 1459 * the "list next snapshot" ioctl 1460 */ 1461 #define SNAP_ITER_MIN_TXG "snap_iter_min_txg" 1462 #define SNAP_ITER_MAX_TXG "snap_iter_max_txg" 1463 1464 /* 1465 * /dev/zfs ioctl numbers. 1466 * 1467 * These numbers cannot change over time. New ioctl numbers must be appended. 1468 */ 1469 typedef enum zfs_ioc { 1470 /* 1471 * Core features - 89/128 numbers reserved. 1472 */ 1473 #ifdef __FreeBSD__ 1474 ZFS_IOC_FIRST = 0, 1475 #else 1476 ZFS_IOC_FIRST = ('Z' << 8), 1477 #endif 1478 ZFS_IOC = ZFS_IOC_FIRST, 1479 ZFS_IOC_POOL_CREATE = ZFS_IOC_FIRST, /* 0x5a00 */ 1480 ZFS_IOC_POOL_DESTROY, /* 0x5a01 */ 1481 ZFS_IOC_POOL_IMPORT, /* 0x5a02 */ 1482 ZFS_IOC_POOL_EXPORT, /* 0x5a03 */ 1483 ZFS_IOC_POOL_CONFIGS, /* 0x5a04 */ 1484 ZFS_IOC_POOL_STATS, /* 0x5a05 */ 1485 ZFS_IOC_POOL_TRYIMPORT, /* 0x5a06 */ 1486 ZFS_IOC_POOL_SCAN, /* 0x5a07 */ 1487 ZFS_IOC_POOL_FREEZE, /* 0x5a08 */ 1488 ZFS_IOC_POOL_UPGRADE, /* 0x5a09 */ 1489 ZFS_IOC_POOL_GET_HISTORY, /* 0x5a0a */ 1490 ZFS_IOC_VDEV_ADD, /* 0x5a0b */ 1491 ZFS_IOC_VDEV_REMOVE, /* 0x5a0c */ 1492 ZFS_IOC_VDEV_SET_STATE, /* 0x5a0d */ 1493 ZFS_IOC_VDEV_ATTACH, /* 0x5a0e */ 1494 ZFS_IOC_VDEV_DETACH, /* 0x5a0f */ 1495 ZFS_IOC_VDEV_SETPATH, /* 0x5a10 */ 1496 ZFS_IOC_VDEV_SETFRU, /* 0x5a11 */ 1497 ZFS_IOC_OBJSET_STATS, /* 0x5a12 */ 1498 ZFS_IOC_OBJSET_ZPLPROPS, /* 0x5a13 */ 1499 ZFS_IOC_DATASET_LIST_NEXT, /* 0x5a14 */ 1500 ZFS_IOC_SNAPSHOT_LIST_NEXT, /* 0x5a15 */ 1501 ZFS_IOC_SET_PROP, /* 0x5a16 */ 1502 ZFS_IOC_CREATE, /* 0x5a17 */ 1503 ZFS_IOC_DESTROY, /* 0x5a18 */ 1504 ZFS_IOC_ROLLBACK, /* 0x5a19 */ 1505 ZFS_IOC_RENAME, /* 0x5a1a */ 1506 ZFS_IOC_RECV, /* 0x5a1b */ 1507 ZFS_IOC_SEND, /* 0x5a1c */ 1508 ZFS_IOC_INJECT_FAULT, /* 0x5a1d */ 1509 ZFS_IOC_CLEAR_FAULT, /* 0x5a1e */ 1510 ZFS_IOC_INJECT_LIST_NEXT, /* 0x5a1f */ 1511 ZFS_IOC_ERROR_LOG, /* 0x5a20 */ 1512 ZFS_IOC_CLEAR, /* 0x5a21 */ 1513 ZFS_IOC_PROMOTE, /* 0x5a22 */ 1514 ZFS_IOC_SNAPSHOT, /* 0x5a23 */ 1515 ZFS_IOC_DSOBJ_TO_DSNAME, /* 0x5a24 */ 1516 ZFS_IOC_OBJ_TO_PATH, /* 0x5a25 */ 1517 ZFS_IOC_POOL_SET_PROPS, /* 0x5a26 */ 1518 ZFS_IOC_POOL_GET_PROPS, /* 0x5a27 */ 1519 ZFS_IOC_SET_FSACL, /* 0x5a28 */ 1520 ZFS_IOC_GET_FSACL, /* 0x5a29 */ 1521 ZFS_IOC_SHARE, /* 0x5a2a */ 1522 ZFS_IOC_INHERIT_PROP, /* 0x5a2b */ 1523 ZFS_IOC_SMB_ACL, /* 0x5a2c */ 1524 ZFS_IOC_USERSPACE_ONE, /* 0x5a2d */ 1525 ZFS_IOC_USERSPACE_MANY, /* 0x5a2e */ 1526 ZFS_IOC_USERSPACE_UPGRADE, /* 0x5a2f */ 1527 ZFS_IOC_HOLD, /* 0x5a30 */ 1528 ZFS_IOC_RELEASE, /* 0x5a31 */ 1529 ZFS_IOC_GET_HOLDS, /* 0x5a32 */ 1530 ZFS_IOC_OBJSET_RECVD_PROPS, /* 0x5a33 */ 1531 ZFS_IOC_VDEV_SPLIT, /* 0x5a34 */ 1532 ZFS_IOC_NEXT_OBJ, /* 0x5a35 */ 1533 ZFS_IOC_DIFF, /* 0x5a36 */ 1534 ZFS_IOC_TMP_SNAPSHOT, /* 0x5a37 */ 1535 ZFS_IOC_OBJ_TO_STATS, /* 0x5a38 */ 1536 ZFS_IOC_SPACE_WRITTEN, /* 0x5a39 */ 1537 ZFS_IOC_SPACE_SNAPS, /* 0x5a3a */ 1538 ZFS_IOC_DESTROY_SNAPS, /* 0x5a3b */ 1539 ZFS_IOC_POOL_REGUID, /* 0x5a3c */ 1540 ZFS_IOC_POOL_REOPEN, /* 0x5a3d */ 1541 ZFS_IOC_SEND_PROGRESS, /* 0x5a3e */ 1542 ZFS_IOC_LOG_HISTORY, /* 0x5a3f */ 1543 ZFS_IOC_SEND_NEW, /* 0x5a40 */ 1544 ZFS_IOC_SEND_SPACE, /* 0x5a41 */ 1545 ZFS_IOC_CLONE, /* 0x5a42 */ 1546 ZFS_IOC_BOOKMARK, /* 0x5a43 */ 1547 ZFS_IOC_GET_BOOKMARKS, /* 0x5a44 */ 1548 ZFS_IOC_DESTROY_BOOKMARKS, /* 0x5a45 */ 1549 ZFS_IOC_RECV_NEW, /* 0x5a46 */ 1550 ZFS_IOC_POOL_SYNC, /* 0x5a47 */ 1551 ZFS_IOC_CHANNEL_PROGRAM, /* 0x5a48 */ 1552 ZFS_IOC_LOAD_KEY, /* 0x5a49 */ 1553 ZFS_IOC_UNLOAD_KEY, /* 0x5a4a */ 1554 ZFS_IOC_CHANGE_KEY, /* 0x5a4b */ 1555 ZFS_IOC_REMAP, /* 0x5a4c */ 1556 ZFS_IOC_POOL_CHECKPOINT, /* 0x5a4d */ 1557 ZFS_IOC_POOL_DISCARD_CHECKPOINT, /* 0x5a4e */ 1558 ZFS_IOC_POOL_INITIALIZE, /* 0x5a4f */ 1559 ZFS_IOC_POOL_TRIM, /* 0x5a50 */ 1560 ZFS_IOC_REDACT, /* 0x5a51 */ 1561 ZFS_IOC_GET_BOOKMARK_PROPS, /* 0x5a52 */ 1562 ZFS_IOC_WAIT, /* 0x5a53 */ 1563 ZFS_IOC_WAIT_FS, /* 0x5a54 */ 1564 ZFS_IOC_VDEV_GET_PROPS, /* 0x5a55 */ 1565 ZFS_IOC_VDEV_SET_PROPS, /* 0x5a56 */ 1566 ZFS_IOC_POOL_SCRUB, /* 0x5a57 */ 1567 ZFS_IOC_POOL_PREFETCH, /* 0x5a58 */ 1568 ZFS_IOC_DDT_PRUNE, /* 0x5a59 */ 1569 1570 /* 1571 * Per-platform (Optional) - 8/128 numbers reserved. 1572 */ 1573 ZFS_IOC_PLATFORM = ZFS_IOC_FIRST + 0x80, 1574 ZFS_IOC_EVENTS_NEXT, /* 0x81 (Linux) */ 1575 ZFS_IOC_EVENTS_CLEAR, /* 0x82 (Linux) */ 1576 ZFS_IOC_EVENTS_SEEK, /* 0x83 (Linux) */ 1577 ZFS_IOC_NEXTBOOT, /* 0x84 (FreeBSD) */ 1578 ZFS_IOC_JAIL, /* 0x85 (FreeBSD) */ 1579 ZFS_IOC_USERNS_ATTACH = ZFS_IOC_JAIL, /* 0x85 (Linux) */ 1580 ZFS_IOC_UNJAIL, /* 0x86 (FreeBSD) */ 1581 ZFS_IOC_USERNS_DETACH = ZFS_IOC_UNJAIL, /* 0x86 (Linux) */ 1582 ZFS_IOC_SET_BOOTENV, /* 0x87 */ 1583 ZFS_IOC_GET_BOOTENV, /* 0x88 */ 1584 ZFS_IOC_LAST 1585 } zfs_ioc_t; 1586 1587 /* 1588 * zvol ioctl to get dataset name 1589 */ 1590 #define BLKZNAME _IOR(0x12, 125, char[ZFS_MAX_DATASET_NAME_LEN]) 1591 1592 #ifdef __linux__ 1593 1594 /* 1595 * IOCTLs to update and retrieve additional file level attributes on 1596 * Linux. 1597 */ 1598 #define ZFS_IOC_GETDOSFLAGS _IOR(0x83, 1, uint64_t) 1599 #define ZFS_IOC_SETDOSFLAGS _IOW(0x83, 2, uint64_t) 1600 1601 /* 1602 * Additional file level attributes, that are stored 1603 * in the upper half of z_pflags 1604 */ 1605 #define ZFS_READONLY 0x0000000100000000ull 1606 #define ZFS_HIDDEN 0x0000000200000000ull 1607 #define ZFS_SYSTEM 0x0000000400000000ull 1608 #define ZFS_ARCHIVE 0x0000000800000000ull 1609 #define ZFS_IMMUTABLE 0x0000001000000000ull 1610 #define ZFS_NOUNLINK 0x0000002000000000ull 1611 #define ZFS_APPENDONLY 0x0000004000000000ull 1612 #define ZFS_NODUMP 0x0000008000000000ull 1613 #define ZFS_OPAQUE 0x0000010000000000ull 1614 #define ZFS_AV_QUARANTINED 0x0000020000000000ull 1615 #define ZFS_AV_MODIFIED 0x0000040000000000ull 1616 #define ZFS_REPARSE 0x0000080000000000ull 1617 #define ZFS_OFFLINE 0x0000100000000000ull 1618 #define ZFS_SPARSE 0x0000200000000000ull 1619 1620 #define ZFS_DOS_FL_USER_VISIBLE (ZFS_IMMUTABLE | ZFS_APPENDONLY | \ 1621 ZFS_NOUNLINK | ZFS_ARCHIVE | ZFS_NODUMP | ZFS_SYSTEM | \ 1622 ZFS_HIDDEN | ZFS_READONLY | ZFS_REPARSE | ZFS_OFFLINE | \ 1623 ZFS_SPARSE) 1624 1625 #endif 1626 1627 typedef struct zfs_rewrite_args { 1628 uint64_t off; 1629 uint64_t len; 1630 uint64_t flags; 1631 uint64_t arg; 1632 } zfs_rewrite_args_t; 1633 1634 /* zfs_rewrite_args flags */ 1635 #define ZFS_REWRITE_PHYSICAL 0x1 /* Preserve logical birth time. */ 1636 1637 #define ZFS_IOC_REWRITE _IOW(0x83, 3, zfs_rewrite_args_t) 1638 1639 /* 1640 * ZFS-specific error codes used for returning descriptive errors 1641 * to the userland through zfs ioctls. 1642 * 1643 * The enum implicitly includes all the error codes from errno.h. 1644 * New code should use and extend this enum for errors that are 1645 * not described precisely by generic errno codes. 1646 * 1647 * These numbers should not change over time. New entries should be appended. 1648 * 1649 * (Keep in sync with contrib/pyzfs/libzfs_core/_constants.py) 1650 */ 1651 typedef enum { 1652 ZFS_ERR_CHECKPOINT_EXISTS = 1024, 1653 ZFS_ERR_DISCARDING_CHECKPOINT, 1654 ZFS_ERR_NO_CHECKPOINT, 1655 ZFS_ERR_DEVRM_IN_PROGRESS, 1656 ZFS_ERR_VDEV_TOO_BIG, 1657 ZFS_ERR_IOC_CMD_UNAVAIL, 1658 ZFS_ERR_IOC_ARG_UNAVAIL, 1659 ZFS_ERR_IOC_ARG_REQUIRED, 1660 ZFS_ERR_IOC_ARG_BADTYPE, 1661 ZFS_ERR_WRONG_PARENT, 1662 ZFS_ERR_FROM_IVSET_GUID_MISSING, 1663 ZFS_ERR_FROM_IVSET_GUID_MISMATCH, 1664 ZFS_ERR_SPILL_BLOCK_FLAG_MISSING, 1665 ZFS_ERR_UNKNOWN_SEND_STREAM_FEATURE, 1666 ZFS_ERR_EXPORT_IN_PROGRESS, 1667 ZFS_ERR_BOOKMARK_SOURCE_NOT_ANCESTOR, 1668 ZFS_ERR_STREAM_TRUNCATED, 1669 ZFS_ERR_STREAM_LARGE_BLOCK_MISMATCH, 1670 ZFS_ERR_RESILVER_IN_PROGRESS, 1671 ZFS_ERR_REBUILD_IN_PROGRESS, 1672 ZFS_ERR_BADPROP, 1673 ZFS_ERR_VDEV_NOTSUP, 1674 ZFS_ERR_NOT_USER_NAMESPACE, 1675 ZFS_ERR_RESUME_EXISTS, 1676 ZFS_ERR_CRYPTO_NOTSUP, 1677 ZFS_ERR_RAIDZ_EXPAND_IN_PROGRESS, 1678 ZFS_ERR_ASHIFT_MISMATCH, 1679 ZFS_ERR_STREAM_LARGE_MICROZAP, 1680 ZFS_ERR_TOO_MANY_SITOUTS, 1681 } zfs_errno_t; 1682 1683 /* 1684 * Internal SPA load state. Used by FMA diagnosis engine. 1685 */ 1686 typedef enum { 1687 SPA_LOAD_NONE, /* no load in progress */ 1688 SPA_LOAD_OPEN, /* normal open */ 1689 SPA_LOAD_IMPORT, /* import in progress */ 1690 SPA_LOAD_TRYIMPORT, /* tryimport in progress */ 1691 SPA_LOAD_RECOVER, /* recovery requested */ 1692 SPA_LOAD_ERROR, /* load failed */ 1693 SPA_LOAD_CREATE /* creation in progress */ 1694 } spa_load_state_t; 1695 1696 typedef enum { 1697 ZPOOL_WAIT_CKPT_DISCARD, 1698 ZPOOL_WAIT_FREE, 1699 ZPOOL_WAIT_INITIALIZE, 1700 ZPOOL_WAIT_REPLACE, 1701 ZPOOL_WAIT_REMOVE, 1702 ZPOOL_WAIT_RESILVER, 1703 ZPOOL_WAIT_SCRUB, 1704 ZPOOL_WAIT_TRIM, 1705 ZPOOL_WAIT_RAIDZ_EXPAND, 1706 ZPOOL_WAIT_NUM_ACTIVITIES 1707 } zpool_wait_activity_t; 1708 1709 typedef enum { 1710 ZFS_WAIT_DELETEQ, 1711 ZFS_WAIT_NUM_ACTIVITIES 1712 } zfs_wait_activity_t; 1713 1714 typedef enum { 1715 ZPOOL_PREFETCH_NONE = 0, 1716 ZPOOL_PREFETCH_DDT 1717 } zpool_prefetch_type_t; 1718 1719 typedef enum { 1720 ZPOOL_DDT_PRUNE_NONE, 1721 ZPOOL_DDT_PRUNE_AGE, /* in seconds */ 1722 ZPOOL_DDT_PRUNE_PERCENTAGE, /* 1 - 100 */ 1723 } zpool_ddt_prune_unit_t; 1724 1725 /* 1726 * Bookmark name values. 1727 */ 1728 #define ZPOOL_ERR_LIST "error list" 1729 #define ZPOOL_ERR_DATASET "dataset" 1730 #define ZPOOL_ERR_OBJECT "object" 1731 1732 #define HIS_MAX_RECORD_LEN (MAXPATHLEN + MAXPATHLEN + 1) 1733 1734 /* 1735 * The following are names used in the nvlist describing 1736 * the pool's history log. 1737 */ 1738 #define ZPOOL_HIST_RECORD "history record" 1739 #define ZPOOL_HIST_TIME "history time" 1740 #define ZPOOL_HIST_CMD "history command" 1741 #define ZPOOL_HIST_WHO "history who" 1742 #define ZPOOL_HIST_ZONE "history zone" 1743 #define ZPOOL_HIST_HOST "history hostname" 1744 #define ZPOOL_HIST_TXG "history txg" 1745 #define ZPOOL_HIST_INT_EVENT "history internal event" 1746 #define ZPOOL_HIST_INT_STR "history internal str" 1747 #define ZPOOL_HIST_INT_NAME "internal_name" 1748 #define ZPOOL_HIST_IOCTL "ioctl" 1749 #define ZPOOL_HIST_INPUT_NVL "in_nvl" 1750 #define ZPOOL_HIST_OUTPUT_NVL "out_nvl" 1751 #define ZPOOL_HIST_OUTPUT_SIZE "out_size" 1752 #define ZPOOL_HIST_DSNAME "dsname" 1753 #define ZPOOL_HIST_DSID "dsid" 1754 #define ZPOOL_HIST_ERRNO "errno" 1755 #define ZPOOL_HIST_ELAPSED_NS "elapsed_ns" 1756 1757 /* 1758 * Special nvlist name that will not have its args recorded in the pool's 1759 * history log. 1760 */ 1761 #define ZPOOL_HIDDEN_ARGS "hidden_args" 1762 1763 /* 1764 * The following is used when invoking ZFS_IOC_POOL_GET_PROPS. 1765 */ 1766 #define ZPOOL_GET_PROPS_NAMES "get_props_names" 1767 1768 /* 1769 * Opt-in property names used with ZPOOL_GET_PROPS_NAMES. 1770 * For example, properties that are hidden or expensive to compute. 1771 */ 1772 #define ZPOOL_DEDUPCACHED_PROP_NAME "dedupcached" 1773 1774 /* 1775 * The following are names used when invoking ZFS_IOC_POOL_INITIALIZE. 1776 */ 1777 #define ZPOOL_INITIALIZE_COMMAND "initialize_command" 1778 #define ZPOOL_INITIALIZE_VDEVS "initialize_vdevs" 1779 1780 /* 1781 * The following are names used when invoking ZFS_IOC_POOL_REGUID. 1782 */ 1783 #define ZPOOL_REGUID_GUID "guid" 1784 1785 /* 1786 * The following are names used when invoking ZFS_IOC_POOL_TRIM. 1787 */ 1788 #define ZPOOL_TRIM_COMMAND "trim_command" 1789 #define ZPOOL_TRIM_VDEVS "trim_vdevs" 1790 #define ZPOOL_TRIM_RATE "trim_rate" 1791 #define ZPOOL_TRIM_SECURE "trim_secure" 1792 1793 /* 1794 * The following are names used when invoking ZFS_IOC_POOL_WAIT. 1795 */ 1796 #define ZPOOL_WAIT_ACTIVITY "wait_activity" 1797 #define ZPOOL_WAIT_TAG "wait_tag" 1798 #define ZPOOL_WAIT_WAITED "wait_waited" 1799 1800 /* 1801 * The following are names used when invoking ZFS_IOC_VDEV_GET_PROP. 1802 */ 1803 #define ZPOOL_VDEV_PROPS_GET_VDEV "vdevprops_get_vdev" 1804 #define ZPOOL_VDEV_PROPS_GET_PROPS "vdevprops_get_props" 1805 1806 /* 1807 * The following are names used when invoking ZFS_IOC_VDEV_SET_PROP. 1808 */ 1809 #define ZPOOL_VDEV_PROPS_SET_VDEV "vdevprops_set_vdev" 1810 #define ZPOOL_VDEV_PROPS_SET_PROPS "vdevprops_set_props" 1811 1812 /* 1813 * The following are names used when invoking ZFS_IOC_WAIT_FS. 1814 */ 1815 #define ZFS_WAIT_ACTIVITY "wait_activity" 1816 #define ZFS_WAIT_WAITED "wait_waited" 1817 1818 /* 1819 * The following are names used when invoking ZFS_IOC_POOL_PREFETCH. 1820 */ 1821 #define ZPOOL_PREFETCH_TYPE "prefetch_type" 1822 1823 /* 1824 * The following are names used when invoking ZFS_IOC_DDT_PRUNE. 1825 */ 1826 #define DDT_PRUNE_UNIT "ddt_prune_unit" 1827 #define DDT_PRUNE_AMOUNT "ddt_prune_amount" 1828 1829 /* 1830 * Flags for ZFS_IOC_VDEV_SET_STATE 1831 */ 1832 #define ZFS_ONLINE_CHECKREMOVE 0x1 1833 #define ZFS_ONLINE_UNSPARE 0x2 1834 #define ZFS_ONLINE_FORCEFAULT 0x4 1835 #define ZFS_ONLINE_EXPAND 0x8 1836 #define ZFS_ONLINE_SPARE 0x10 1837 #define ZFS_OFFLINE_TEMPORARY 0x1 1838 1839 /* 1840 * Flags for ZFS_IOC_POOL_IMPORT 1841 */ 1842 #define ZFS_IMPORT_NORMAL 0x0 1843 #define ZFS_IMPORT_VERBATIM 0x1 1844 #define ZFS_IMPORT_ANY_HOST 0x2 1845 #define ZFS_IMPORT_MISSING_LOG 0x4 1846 #define ZFS_IMPORT_ONLY 0x8 1847 #define ZFS_IMPORT_TEMP_NAME 0x10 1848 #define ZFS_IMPORT_SKIP_MMP 0x20 1849 #define ZFS_IMPORT_LOAD_KEYS 0x40 1850 #define ZFS_IMPORT_CHECKPOINT 0x80 1851 1852 /* 1853 * Channel program argument/return nvlist keys and defaults. 1854 */ 1855 #define ZCP_ARG_PROGRAM "program" 1856 #define ZCP_ARG_ARGLIST "arg" 1857 #define ZCP_ARG_SYNC "sync" 1858 #define ZCP_ARG_INSTRLIMIT "instrlimit" 1859 #define ZCP_ARG_MEMLIMIT "memlimit" 1860 1861 #define ZCP_ARG_CLIARGV "argv" 1862 1863 #define ZCP_RET_ERROR "error" 1864 #define ZCP_RET_RETURN "return" 1865 1866 #define ZCP_DEFAULT_INSTRLIMIT (10 * 1000 * 1000) 1867 #define ZCP_MAX_INSTRLIMIT (10 * ZCP_DEFAULT_INSTRLIMIT) 1868 #define ZCP_DEFAULT_MEMLIMIT (10 * 1024 * 1024) 1869 #define ZCP_MAX_MEMLIMIT (10 * ZCP_DEFAULT_MEMLIMIT) 1870 1871 /* 1872 * Sysevent payload members. ZFS will generate the following sysevents with the 1873 * given payloads: 1874 * 1875 * ESC_ZFS_RESILVER_START 1876 * ESC_ZFS_RESILVER_FINISH 1877 * 1878 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 1879 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 1880 * ZFS_EV_RESILVER_TYPE DATA_TYPE_STRING 1881 * 1882 * ESC_ZFS_POOL_DESTROY 1883 * ESC_ZFS_POOL_REGUID 1884 * 1885 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 1886 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 1887 * 1888 * ESC_ZFS_VDEV_REMOVE 1889 * ESC_ZFS_VDEV_CLEAR 1890 * ESC_ZFS_VDEV_CHECK 1891 * 1892 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 1893 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 1894 * ZFS_EV_VDEV_PATH DATA_TYPE_STRING (optional) 1895 * ZFS_EV_VDEV_GUID DATA_TYPE_UINT64 1896 * 1897 * ESC_ZFS_HISTORY_EVENT 1898 * 1899 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 1900 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 1901 * ZFS_EV_HIST_TIME DATA_TYPE_UINT64 (optional) 1902 * ZFS_EV_HIST_CMD DATA_TYPE_STRING (optional) 1903 * ZFS_EV_HIST_WHO DATA_TYPE_UINT64 (optional) 1904 * ZFS_EV_HIST_ZONE DATA_TYPE_STRING (optional) 1905 * ZFS_EV_HIST_HOST DATA_TYPE_STRING (optional) 1906 * ZFS_EV_HIST_TXG DATA_TYPE_UINT64 (optional) 1907 * ZFS_EV_HIST_INT_EVENT DATA_TYPE_UINT64 (optional) 1908 * ZFS_EV_HIST_INT_STR DATA_TYPE_STRING (optional) 1909 * ZFS_EV_HIST_INT_NAME DATA_TYPE_STRING (optional) 1910 * ZFS_EV_HIST_IOCTL DATA_TYPE_STRING (optional) 1911 * ZFS_EV_HIST_DSNAME DATA_TYPE_STRING (optional) 1912 * ZFS_EV_HIST_DSID DATA_TYPE_UINT64 (optional) 1913 * 1914 * The ZFS_EV_HIST_* members will correspond to the ZPOOL_HIST_* members in the 1915 * history log nvlist. The keynames will be free of any spaces or other 1916 * characters that could be potentially unexpected to consumers of the 1917 * sysevents. 1918 */ 1919 #define ZFS_EV_POOL_NAME "pool_name" 1920 #define ZFS_EV_POOL_GUID "pool_guid" 1921 #define ZFS_EV_VDEV_PATH "vdev_path" 1922 #define ZFS_EV_VDEV_GUID "vdev_guid" 1923 #define ZFS_EV_HIST_TIME "history_time" 1924 #define ZFS_EV_HIST_CMD "history_command" 1925 #define ZFS_EV_HIST_WHO "history_who" 1926 #define ZFS_EV_HIST_ZONE "history_zone" 1927 #define ZFS_EV_HIST_HOST "history_hostname" 1928 #define ZFS_EV_HIST_TXG "history_txg" 1929 #define ZFS_EV_HIST_INT_EVENT "history_internal_event" 1930 #define ZFS_EV_HIST_INT_STR "history_internal_str" 1931 #define ZFS_EV_HIST_INT_NAME "history_internal_name" 1932 #define ZFS_EV_HIST_IOCTL "history_ioctl" 1933 #define ZFS_EV_HIST_DSNAME "history_dsname" 1934 #define ZFS_EV_HIST_DSID "history_dsid" 1935 #define ZFS_EV_RESILVER_TYPE "resilver_type" 1936 1937 /* 1938 * We currently support block sizes from 512 bytes to 16MB. 1939 * The benefits of larger blocks, and thus larger IO, need to be weighed 1940 * against the cost of COWing a giant block to modify one byte, and the 1941 * large latency of reading or writing a large block. 1942 * 1943 * The recordsize property can not be set larger than zfs_max_recordsize 1944 * (default 16MB on 64-bit and 1MB on 32-bit). See the comment near 1945 * zfs_max_recordsize in dsl_dataset.c for details. 1946 * 1947 * Note that although the LSIZE field of the blkptr_t can store sizes up 1948 * to 32MB, the dnode's dn_datablkszsec can only store sizes up to 1949 * 32MB - 512 bytes. Therefore, we limit SPA_MAXBLOCKSIZE to 16MB. 1950 */ 1951 #define SPA_MINBLOCKSHIFT 9 1952 #define SPA_OLD_MAXBLOCKSHIFT 17 1953 #define SPA_MAXBLOCKSHIFT 24 1954 #define SPA_MINBLOCKSIZE (1ULL << SPA_MINBLOCKSHIFT) 1955 #define SPA_OLD_MAXBLOCKSIZE (1ULL << SPA_OLD_MAXBLOCKSHIFT) 1956 #define SPA_MAXBLOCKSIZE (1ULL << SPA_MAXBLOCKSHIFT) 1957 1958 /* supported encryption algorithms */ 1959 enum zio_encrypt { 1960 ZIO_CRYPT_INHERIT = 0, 1961 ZIO_CRYPT_ON, 1962 ZIO_CRYPT_OFF, 1963 ZIO_CRYPT_AES_128_CCM, 1964 ZIO_CRYPT_AES_192_CCM, 1965 ZIO_CRYPT_AES_256_CCM, 1966 ZIO_CRYPT_AES_128_GCM, 1967 ZIO_CRYPT_AES_192_GCM, 1968 ZIO_CRYPT_AES_256_GCM, 1969 ZIO_CRYPT_FUNCTIONS 1970 }; 1971 1972 #define ZIO_CRYPT_ON_VALUE ZIO_CRYPT_AES_256_GCM 1973 #define ZIO_CRYPT_DEFAULT ZIO_CRYPT_OFF 1974 1975 /* 1976 * xattr namespace prefixes. These are forbidden in xattr names. 1977 * 1978 * For cross-platform compatibility, xattrs in the user namespace should not be 1979 * prefixed with the namespace name, but for backwards compatibility with older 1980 * ZFS on Linux versions we do prefix the namespace. 1981 */ 1982 #define ZFS_XA_NS_FREEBSD_PREFIX "freebsd:" 1983 #define ZFS_XA_NS_FREEBSD_PREFIX_LEN strlen("freebsd:") 1984 #define ZFS_XA_NS_LINUX_SECURITY_PREFIX "security." 1985 #define ZFS_XA_NS_LINUX_SECURITY_PREFIX_LEN strlen("security.") 1986 #define ZFS_XA_NS_LINUX_SYSTEM_PREFIX "system." 1987 #define ZFS_XA_NS_LINUX_SYSTEM_PREFIX_LEN strlen("system.") 1988 #define ZFS_XA_NS_LINUX_TRUSTED_PREFIX "trusted." 1989 #define ZFS_XA_NS_LINUX_TRUSTED_PREFIX_LEN strlen("trusted.") 1990 #define ZFS_XA_NS_LINUX_USER_PREFIX "user." 1991 #define ZFS_XA_NS_LINUX_USER_PREFIX_LEN strlen("user.") 1992 1993 #define ZFS_XA_NS_PREFIX_MATCH(ns, name) \ 1994 (strncmp(name, ZFS_XA_NS_##ns##_PREFIX, \ 1995 ZFS_XA_NS_##ns##_PREFIX_LEN) == 0) 1996 1997 #define ZFS_XA_NS_PREFIX_FORBIDDEN(name) \ 1998 (ZFS_XA_NS_PREFIX_MATCH(FREEBSD, name) || \ 1999 ZFS_XA_NS_PREFIX_MATCH(LINUX_SECURITY, name) || \ 2000 ZFS_XA_NS_PREFIX_MATCH(LINUX_SYSTEM, name) || \ 2001 ZFS_XA_NS_PREFIX_MATCH(LINUX_TRUSTED, name) || \ 2002 ZFS_XA_NS_PREFIX_MATCH(LINUX_USER, name)) 2003 2004 #ifdef __cplusplus 2005 } 2006 #endif 2007 2008 #endif /* _SYS_FS_ZFS_H */ 2009