1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_FS_ZFS_H 28 #define _SYS_FS_ZFS_H 29 30 #include <sys/time.h> 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * Types and constants shared between userland and the kernel. 38 */ 39 40 /* 41 * Each dataset can be one of the following types. These constants can be 42 * combined into masks that can be passed to various functions. 43 */ 44 typedef enum { 45 ZFS_TYPE_FILESYSTEM = 0x1, 46 ZFS_TYPE_SNAPSHOT = 0x2, 47 ZFS_TYPE_VOLUME = 0x4, 48 ZFS_TYPE_POOL = 0x8 49 } zfs_type_t; 50 51 #define ZFS_TYPE_DATASET \ 52 (ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME | ZFS_TYPE_SNAPSHOT) 53 54 #define ZAP_MAXNAMELEN 256 55 #define ZAP_MAXVALUELEN (1024 * 8) 56 #define ZAP_OLDMAXVALUELEN 1024 57 58 /* 59 * Dataset properties are identified by these constants and must be added to 60 * the end of this list to ensure that external consumers are not affected 61 * by the change. If you make any changes to this list, be sure to update 62 * the property table in usr/src/common/zfs/zfs_prop.c. 63 */ 64 typedef enum { 65 ZFS_PROP_TYPE, 66 ZFS_PROP_CREATION, 67 ZFS_PROP_USED, 68 ZFS_PROP_AVAILABLE, 69 ZFS_PROP_REFERENCED, 70 ZFS_PROP_COMPRESSRATIO, 71 ZFS_PROP_MOUNTED, 72 ZFS_PROP_ORIGIN, 73 ZFS_PROP_QUOTA, 74 ZFS_PROP_RESERVATION, 75 ZFS_PROP_VOLSIZE, 76 ZFS_PROP_VOLBLOCKSIZE, 77 ZFS_PROP_RECORDSIZE, 78 ZFS_PROP_MOUNTPOINT, 79 ZFS_PROP_SHARENFS, 80 ZFS_PROP_CHECKSUM, 81 ZFS_PROP_COMPRESSION, 82 ZFS_PROP_ATIME, 83 ZFS_PROP_DEVICES, 84 ZFS_PROP_EXEC, 85 ZFS_PROP_SETUID, 86 ZFS_PROP_READONLY, 87 ZFS_PROP_ZONED, 88 ZFS_PROP_SNAPDIR, 89 ZFS_PROP_ACLMODE, 90 ZFS_PROP_ACLINHERIT, 91 ZFS_PROP_CREATETXG, /* not exposed to the user */ 92 ZFS_PROP_NAME, /* not exposed to the user */ 93 ZFS_PROP_CANMOUNT, 94 ZFS_PROP_SHAREISCSI, 95 ZFS_PROP_ISCSIOPTIONS, /* not exposed to the user */ 96 ZFS_PROP_XATTR, 97 ZFS_PROP_NUMCLONES, /* not exposed to the user */ 98 ZFS_PROP_COPIES, 99 ZFS_PROP_VERSION, 100 ZFS_PROP_UTF8ONLY, 101 ZFS_PROP_NORMALIZE, 102 ZFS_PROP_CASE, 103 ZFS_PROP_VSCAN, 104 ZFS_PROP_NBMAND, 105 ZFS_PROP_SHARESMB, 106 ZFS_PROP_REFQUOTA, 107 ZFS_PROP_REFRESERVATION, 108 ZFS_PROP_GUID, 109 ZFS_PROP_PRIMARYCACHE, 110 ZFS_PROP_SECONDARYCACHE, 111 ZFS_PROP_USEDSNAP, 112 ZFS_PROP_USEDDS, 113 ZFS_PROP_USEDCHILD, 114 ZFS_PROP_USEDREFRESERV, 115 ZFS_PROP_USERACCOUNTING, /* not exposed to the user */ 116 ZFS_PROP_STMF_SHAREINFO, /* not exposed to the user */ 117 ZFS_PROP_DEFER_DESTROY, 118 ZFS_PROP_USERREFS, 119 ZFS_PROP_LOGBIAS, 120 ZFS_NUM_PROPS 121 } zfs_prop_t; 122 123 typedef enum { 124 ZFS_PROP_USERUSED, 125 ZFS_PROP_USERQUOTA, 126 ZFS_PROP_GROUPUSED, 127 ZFS_PROP_GROUPQUOTA, 128 ZFS_NUM_USERQUOTA_PROPS 129 } zfs_userquota_prop_t; 130 131 extern const char *zfs_userquota_prop_prefixes[ZFS_NUM_USERQUOTA_PROPS]; 132 133 /* 134 * Pool properties are identified by these constants and must be added to the 135 * end of this list to ensure that external consumers are not affected 136 * by the change. If you make any changes to this list, be sure to update 137 * the property table in usr/src/common/zfs/zpool_prop.c. 138 */ 139 typedef enum { 140 ZPOOL_PROP_NAME, 141 ZPOOL_PROP_SIZE, 142 ZPOOL_PROP_USED, 143 ZPOOL_PROP_AVAILABLE, 144 ZPOOL_PROP_CAPACITY, 145 ZPOOL_PROP_ALTROOT, 146 ZPOOL_PROP_HEALTH, 147 ZPOOL_PROP_GUID, 148 ZPOOL_PROP_VERSION, 149 ZPOOL_PROP_BOOTFS, 150 ZPOOL_PROP_DELEGATION, 151 ZPOOL_PROP_AUTOREPLACE, 152 ZPOOL_PROP_CACHEFILE, 153 ZPOOL_PROP_FAILUREMODE, 154 ZPOOL_PROP_LISTSNAPS, 155 ZPOOL_PROP_AUTOEXPAND, 156 ZPOOL_NUM_PROPS 157 } zpool_prop_t; 158 159 #define ZPROP_CONT -2 160 #define ZPROP_INVAL -1 161 162 #define ZPROP_VALUE "value" 163 #define ZPROP_SOURCE "source" 164 165 typedef enum { 166 ZPROP_SRC_NONE = 0x1, 167 ZPROP_SRC_DEFAULT = 0x2, 168 ZPROP_SRC_TEMPORARY = 0x4, 169 ZPROP_SRC_LOCAL = 0x8, 170 ZPROP_SRC_INHERITED = 0x10 171 } zprop_source_t; 172 173 #define ZPROP_SRC_ALL 0x1f 174 175 typedef int (*zprop_func)(int, void *); 176 177 /* 178 * Properties to be set on the root file system of a new pool 179 * are stuffed into their own nvlist, which is then included in 180 * the properties nvlist with the pool properties. 181 */ 182 #define ZPOOL_ROOTFS_PROPS "root-props-nvl" 183 184 /* 185 * Dataset property functions shared between libzfs and kernel. 186 */ 187 const char *zfs_prop_default_string(zfs_prop_t); 188 uint64_t zfs_prop_default_numeric(zfs_prop_t); 189 boolean_t zfs_prop_readonly(zfs_prop_t); 190 boolean_t zfs_prop_inheritable(zfs_prop_t); 191 boolean_t zfs_prop_setonce(zfs_prop_t); 192 const char *zfs_prop_to_name(zfs_prop_t); 193 zfs_prop_t zfs_name_to_prop(const char *); 194 boolean_t zfs_prop_user(const char *); 195 boolean_t zfs_prop_userquota(const char *name); 196 int zfs_prop_index_to_string(zfs_prop_t, uint64_t, const char **); 197 int zfs_prop_string_to_index(zfs_prop_t, const char *, uint64_t *); 198 boolean_t zfs_prop_valid_for_type(int, zfs_type_t); 199 200 /* 201 * Pool property functions shared between libzfs and kernel. 202 */ 203 zpool_prop_t zpool_name_to_prop(const char *); 204 const char *zpool_prop_to_name(zpool_prop_t); 205 const char *zpool_prop_default_string(zpool_prop_t); 206 uint64_t zpool_prop_default_numeric(zpool_prop_t); 207 boolean_t zpool_prop_readonly(zpool_prop_t); 208 int zpool_prop_index_to_string(zpool_prop_t, uint64_t, const char **); 209 int zpool_prop_string_to_index(zpool_prop_t, const char *, uint64_t *); 210 211 /* 212 * Definitions for the Delegation. 213 */ 214 typedef enum { 215 ZFS_DELEG_WHO_UNKNOWN = 0, 216 ZFS_DELEG_USER = 'u', 217 ZFS_DELEG_USER_SETS = 'U', 218 ZFS_DELEG_GROUP = 'g', 219 ZFS_DELEG_GROUP_SETS = 'G', 220 ZFS_DELEG_EVERYONE = 'e', 221 ZFS_DELEG_EVERYONE_SETS = 'E', 222 ZFS_DELEG_CREATE = 'c', 223 ZFS_DELEG_CREATE_SETS = 'C', 224 ZFS_DELEG_NAMED_SET = 's', 225 ZFS_DELEG_NAMED_SET_SETS = 'S' 226 } zfs_deleg_who_type_t; 227 228 typedef enum { 229 ZFS_DELEG_NONE = 0, 230 ZFS_DELEG_PERM_LOCAL = 1, 231 ZFS_DELEG_PERM_DESCENDENT = 2, 232 ZFS_DELEG_PERM_LOCALDESCENDENT = 3, 233 ZFS_DELEG_PERM_CREATE = 4 234 } zfs_deleg_inherit_t; 235 236 #define ZFS_DELEG_PERM_UID "uid" 237 #define ZFS_DELEG_PERM_GID "gid" 238 #define ZFS_DELEG_PERM_GROUPS "groups" 239 240 #define ZFS_SMB_ACL_SRC "src" 241 #define ZFS_SMB_ACL_TARGET "target" 242 243 typedef enum { 244 ZFS_CANMOUNT_OFF = 0, 245 ZFS_CANMOUNT_ON = 1, 246 ZFS_CANMOUNT_NOAUTO = 2 247 } zfs_canmount_type_t; 248 249 typedef enum { 250 ZFS_LOGBIAS_LATENCY = 0, 251 ZFS_LOGBIAS_THROUGHPUT = 1 252 } zfs_logbias_op_t; 253 254 typedef enum zfs_share_op { 255 ZFS_SHARE_NFS = 0, 256 ZFS_UNSHARE_NFS = 1, 257 ZFS_SHARE_SMB = 2, 258 ZFS_UNSHARE_SMB = 3 259 } zfs_share_op_t; 260 261 typedef enum zfs_smb_acl_op { 262 ZFS_SMB_ACL_ADD, 263 ZFS_SMB_ACL_REMOVE, 264 ZFS_SMB_ACL_RENAME, 265 ZFS_SMB_ACL_PURGE 266 } zfs_smb_acl_op_t; 267 268 typedef enum zfs_cache_type { 269 ZFS_CACHE_NONE = 0, 270 ZFS_CACHE_METADATA = 1, 271 ZFS_CACHE_ALL = 2 272 } zfs_cache_type_t; 273 274 275 /* 276 * On-disk version number. 277 */ 278 #define SPA_VERSION_1 1ULL 279 #define SPA_VERSION_2 2ULL 280 #define SPA_VERSION_3 3ULL 281 #define SPA_VERSION_4 4ULL 282 #define SPA_VERSION_5 5ULL 283 #define SPA_VERSION_6 6ULL 284 #define SPA_VERSION_7 7ULL 285 #define SPA_VERSION_8 8ULL 286 #define SPA_VERSION_9 9ULL 287 #define SPA_VERSION_10 10ULL 288 #define SPA_VERSION_11 11ULL 289 #define SPA_VERSION_12 12ULL 290 #define SPA_VERSION_13 13ULL 291 #define SPA_VERSION_14 14ULL 292 #define SPA_VERSION_15 15ULL 293 #define SPA_VERSION_16 16ULL 294 #define SPA_VERSION_17 17ULL 295 #define SPA_VERSION_18 18ULL 296 /* 297 * When bumping up SPA_VERSION, make sure GRUB ZFS understands the on-disk 298 * format change. Go to usr/src/grub/grub-0.97/stage2/{zfs-include/, fsys_zfs*}, 299 * and do the appropriate changes. Also bump the version number in 300 * usr/src/grub/capability. 301 */ 302 #define SPA_VERSION SPA_VERSION_18 303 #define SPA_VERSION_STRING "18" 304 305 /* 306 * Symbolic names for the changes that caused a SPA_VERSION switch. 307 * Used in the code when checking for presence or absence of a feature. 308 * Feel free to define multiple symbolic names for each version if there 309 * were multiple changes to on-disk structures during that version. 310 * 311 * NOTE: When checking the current SPA_VERSION in your code, be sure 312 * to use spa_version() since it reports the version of the 313 * last synced uberblock. Checking the in-flight version can 314 * be dangerous in some cases. 315 */ 316 #define SPA_VERSION_INITIAL SPA_VERSION_1 317 #define SPA_VERSION_DITTO_BLOCKS SPA_VERSION_2 318 #define SPA_VERSION_SPARES SPA_VERSION_3 319 #define SPA_VERSION_RAIDZ2 SPA_VERSION_3 320 #define SPA_VERSION_BPLIST_ACCOUNT SPA_VERSION_3 321 #define SPA_VERSION_RAIDZ_DEFLATE SPA_VERSION_3 322 #define SPA_VERSION_DNODE_BYTES SPA_VERSION_3 323 #define SPA_VERSION_ZPOOL_HISTORY SPA_VERSION_4 324 #define SPA_VERSION_GZIP_COMPRESSION SPA_VERSION_5 325 #define SPA_VERSION_BOOTFS SPA_VERSION_6 326 #define SPA_VERSION_SLOGS SPA_VERSION_7 327 #define SPA_VERSION_DELEGATED_PERMS SPA_VERSION_8 328 #define SPA_VERSION_FUID SPA_VERSION_9 329 #define SPA_VERSION_REFRESERVATION SPA_VERSION_9 330 #define SPA_VERSION_REFQUOTA SPA_VERSION_9 331 #define SPA_VERSION_UNIQUE_ACCURATE SPA_VERSION_9 332 #define SPA_VERSION_L2CACHE SPA_VERSION_10 333 #define SPA_VERSION_NEXT_CLONES SPA_VERSION_11 334 #define SPA_VERSION_ORIGIN SPA_VERSION_11 335 #define SPA_VERSION_DSL_SCRUB SPA_VERSION_11 336 #define SPA_VERSION_SNAP_PROPS SPA_VERSION_12 337 #define SPA_VERSION_USED_BREAKDOWN SPA_VERSION_13 338 #define SPA_VERSION_PASSTHROUGH_X SPA_VERSION_14 339 #define SPA_VERSION_USERSPACE SPA_VERSION_15 340 #define SPA_VERSION_STMF_PROP SPA_VERSION_16 341 #define SPA_VERSION_RAIDZ3 SPA_VERSION_17 342 #define SPA_VERSION_USERREFS SPA_VERSION_18 343 344 /* 345 * ZPL version - rev'd whenever an incompatible on-disk format change 346 * occurs. This is independent of SPA/DMU/ZAP versioning. You must 347 * also update the version_table[] and help message in zfs_prop.c. 348 * 349 * When changing, be sure to teach GRUB how to read the new format! 350 * See usr/src/grub/grub-0.97/stage2/{zfs-include/,fsys_zfs*} 351 */ 352 #define ZPL_VERSION_1 1ULL 353 #define ZPL_VERSION_2 2ULL 354 #define ZPL_VERSION_3 3ULL 355 #define ZPL_VERSION_4 4ULL 356 #define ZPL_VERSION ZPL_VERSION_4 357 #define ZPL_VERSION_STRING "4" 358 359 #define ZPL_VERSION_INITIAL ZPL_VERSION_1 360 #define ZPL_VERSION_DIRENT_TYPE ZPL_VERSION_2 361 #define ZPL_VERSION_FUID ZPL_VERSION_3 362 #define ZPL_VERSION_NORMALIZATION ZPL_VERSION_3 363 #define ZPL_VERSION_SYSATTR ZPL_VERSION_3 364 #define ZPL_VERSION_USERSPACE ZPL_VERSION_4 365 366 /* 367 * The following are configuration names used in the nvlist describing a pool's 368 * configuration. 369 */ 370 #define ZPOOL_CONFIG_VERSION "version" 371 #define ZPOOL_CONFIG_POOL_NAME "name" 372 #define ZPOOL_CONFIG_POOL_STATE "state" 373 #define ZPOOL_CONFIG_POOL_TXG "txg" 374 #define ZPOOL_CONFIG_POOL_GUID "pool_guid" 375 #define ZPOOL_CONFIG_CREATE_TXG "create_txg" 376 #define ZPOOL_CONFIG_TOP_GUID "top_guid" 377 #define ZPOOL_CONFIG_VDEV_TREE "vdev_tree" 378 #define ZPOOL_CONFIG_TYPE "type" 379 #define ZPOOL_CONFIG_CHILDREN "children" 380 #define ZPOOL_CONFIG_ID "id" 381 #define ZPOOL_CONFIG_GUID "guid" 382 #define ZPOOL_CONFIG_PATH "path" 383 #define ZPOOL_CONFIG_DEVID "devid" 384 #define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array" 385 #define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift" 386 #define ZPOOL_CONFIG_ASHIFT "ashift" 387 #define ZPOOL_CONFIG_ASIZE "asize" 388 #define ZPOOL_CONFIG_DTL "DTL" 389 #define ZPOOL_CONFIG_STATS "stats" 390 #define ZPOOL_CONFIG_WHOLE_DISK "whole_disk" 391 #define ZPOOL_CONFIG_ERRCOUNT "error_count" 392 #define ZPOOL_CONFIG_NOT_PRESENT "not_present" 393 #define ZPOOL_CONFIG_SPARES "spares" 394 #define ZPOOL_CONFIG_IS_SPARE "is_spare" 395 #define ZPOOL_CONFIG_NPARITY "nparity" 396 #define ZPOOL_CONFIG_HOSTID "hostid" 397 #define ZPOOL_CONFIG_HOSTNAME "hostname" 398 #define ZPOOL_CONFIG_UNSPARE "unspare" 399 #define ZPOOL_CONFIG_PHYS_PATH "phys_path" 400 #define ZPOOL_CONFIG_IS_LOG "is_log" 401 #define ZPOOL_CONFIG_L2CACHE "l2cache" 402 #define ZPOOL_CONFIG_SUSPENDED "suspended" /* not stored on disk */ 403 #define ZPOOL_CONFIG_TIMESTAMP "timestamp" /* not stored on disk */ 404 #define ZPOOL_CONFIG_BOOTFS "bootfs" /* not stored on disk */ 405 /* 406 * The persistent vdev state is stored as separate values rather than a single 407 * 'vdev_state' entry. This is because a device can be in multiple states, such 408 * as offline and degraded. 409 */ 410 #define ZPOOL_CONFIG_OFFLINE "offline" 411 #define ZPOOL_CONFIG_FAULTED "faulted" 412 #define ZPOOL_CONFIG_DEGRADED "degraded" 413 #define ZPOOL_CONFIG_REMOVED "removed" 414 #define ZPOOL_CONFIG_FRU "fru" 415 416 #define VDEV_TYPE_ROOT "root" 417 #define VDEV_TYPE_MIRROR "mirror" 418 #define VDEV_TYPE_REPLACING "replacing" 419 #define VDEV_TYPE_RAIDZ "raidz" 420 #define VDEV_TYPE_DISK "disk" 421 #define VDEV_TYPE_FILE "file" 422 #define VDEV_TYPE_MISSING "missing" 423 #define VDEV_TYPE_SPARE "spare" 424 #define VDEV_TYPE_LOG "log" 425 #define VDEV_TYPE_L2CACHE "l2cache" 426 427 /* 428 * This is needed in userland to report the minimum necessary device size. 429 */ 430 #define SPA_MINDEVSIZE (64ULL << 20) 431 432 /* 433 * The location of the pool configuration repository, shared between kernel and 434 * userland. 435 */ 436 #define ZPOOL_CACHE "/etc/zfs/zpool.cache" 437 438 /* 439 * vdev states are ordered from least to most healthy. 440 * A vdev that's CANT_OPEN or below is considered unusable. 441 */ 442 typedef enum vdev_state { 443 VDEV_STATE_UNKNOWN = 0, /* Uninitialized vdev */ 444 VDEV_STATE_CLOSED, /* Not currently open */ 445 VDEV_STATE_OFFLINE, /* Not allowed to open */ 446 VDEV_STATE_REMOVED, /* Explicitly removed from system */ 447 VDEV_STATE_CANT_OPEN, /* Tried to open, but failed */ 448 VDEV_STATE_FAULTED, /* External request to fault device */ 449 VDEV_STATE_DEGRADED, /* Replicated vdev with unhealthy kids */ 450 VDEV_STATE_HEALTHY /* Presumed good */ 451 } vdev_state_t; 452 453 #define VDEV_STATE_ONLINE VDEV_STATE_HEALTHY 454 455 /* 456 * vdev aux states. When a vdev is in the CANT_OPEN state, the aux field 457 * of the vdev stats structure uses these constants to distinguish why. 458 */ 459 typedef enum vdev_aux { 460 VDEV_AUX_NONE, /* no error */ 461 VDEV_AUX_OPEN_FAILED, /* ldi_open_*() or vn_open() failed */ 462 VDEV_AUX_CORRUPT_DATA, /* bad label or disk contents */ 463 VDEV_AUX_NO_REPLICAS, /* insufficient number of replicas */ 464 VDEV_AUX_BAD_GUID_SUM, /* vdev guid sum doesn't match */ 465 VDEV_AUX_TOO_SMALL, /* vdev size is too small */ 466 VDEV_AUX_BAD_LABEL, /* the label is OK but invalid */ 467 VDEV_AUX_VERSION_NEWER, /* on-disk version is too new */ 468 VDEV_AUX_VERSION_OLDER, /* on-disk version is too old */ 469 VDEV_AUX_SPARED, /* hot spare used in another pool */ 470 VDEV_AUX_ERR_EXCEEDED, /* too many errors */ 471 VDEV_AUX_IO_FAILURE, /* experienced I/O failure */ 472 VDEV_AUX_BAD_LOG /* cannot read log chain(s) */ 473 } vdev_aux_t; 474 475 /* 476 * pool state. The following states are written to disk as part of the normal 477 * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining 478 * states are software abstractions used at various levels to communicate 479 * pool state. 480 */ 481 typedef enum pool_state { 482 POOL_STATE_ACTIVE = 0, /* In active use */ 483 POOL_STATE_EXPORTED, /* Explicitly exported */ 484 POOL_STATE_DESTROYED, /* Explicitly destroyed */ 485 POOL_STATE_SPARE, /* Reserved for hot spare use */ 486 POOL_STATE_L2CACHE, /* Level 2 ARC device */ 487 POOL_STATE_UNINITIALIZED, /* Internal spa_t state */ 488 POOL_STATE_UNAVAIL, /* Internal libzfs state */ 489 POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */ 490 } pool_state_t; 491 492 /* 493 * Scrub types. 494 */ 495 typedef enum pool_scrub_type { 496 POOL_SCRUB_NONE, 497 POOL_SCRUB_RESILVER, 498 POOL_SCRUB_EVERYTHING, 499 POOL_SCRUB_TYPES 500 } pool_scrub_type_t; 501 502 /* 503 * ZIO types. Needed to interpret vdev statistics below. 504 */ 505 typedef enum zio_type { 506 ZIO_TYPE_NULL = 0, 507 ZIO_TYPE_READ, 508 ZIO_TYPE_WRITE, 509 ZIO_TYPE_FREE, 510 ZIO_TYPE_CLAIM, 511 ZIO_TYPE_IOCTL, 512 ZIO_TYPES 513 } zio_type_t; 514 515 /* 516 * Vdev statistics. Note: all fields should be 64-bit because this 517 * is passed between kernel and userland as an nvlist uint64 array. 518 */ 519 typedef struct vdev_stat { 520 hrtime_t vs_timestamp; /* time since vdev load */ 521 uint64_t vs_state; /* vdev state */ 522 uint64_t vs_aux; /* see vdev_aux_t */ 523 uint64_t vs_alloc; /* space allocated */ 524 uint64_t vs_space; /* total capacity */ 525 uint64_t vs_dspace; /* deflated capacity */ 526 uint64_t vs_rsize; /* replaceable dev size */ 527 uint64_t vs_ops[ZIO_TYPES]; /* operation count */ 528 uint64_t vs_bytes[ZIO_TYPES]; /* bytes read/written */ 529 uint64_t vs_read_errors; /* read errors */ 530 uint64_t vs_write_errors; /* write errors */ 531 uint64_t vs_checksum_errors; /* checksum errors */ 532 uint64_t vs_self_healed; /* self-healed bytes */ 533 uint64_t vs_scrub_type; /* pool_scrub_type_t */ 534 uint64_t vs_scrub_complete; /* completed? */ 535 uint64_t vs_scrub_examined; /* bytes examined; top */ 536 uint64_t vs_scrub_repaired; /* bytes repaired; leaf */ 537 uint64_t vs_scrub_errors; /* errors during scrub */ 538 uint64_t vs_scrub_start; /* UTC scrub start time */ 539 uint64_t vs_scrub_end; /* UTC scrub end time */ 540 } vdev_stat_t; 541 542 #define ZVOL_DRIVER "zvol" 543 #define ZFS_DRIVER "zfs" 544 #define ZFS_DEV "/dev/zfs" 545 546 /* 547 * zvol paths. Irritatingly, the devfsadm interfaces want all these 548 * paths without the /dev prefix, but for some things, we want the 549 * /dev prefix. Below are the names without /dev. 550 */ 551 #define ZVOL_DEV_DIR "zvol/dsk" 552 #define ZVOL_RDEV_DIR "zvol/rdsk" 553 554 /* 555 * And here are the things we need with /dev, etc. in front of them. 556 */ 557 #define ZVOL_PSEUDO_DEV "/devices/pseudo/zfs@0:" 558 #define ZVOL_FULL_DEV_DIR "/dev/" ZVOL_DEV_DIR "/" 559 560 #define ZVOL_PROP_NAME "name" 561 562 /* 563 * /dev/zfs ioctl numbers. 564 */ 565 #define ZFS_IOC ('Z' << 8) 566 567 typedef enum zfs_ioc { 568 ZFS_IOC_POOL_CREATE = ZFS_IOC, 569 ZFS_IOC_POOL_DESTROY, 570 ZFS_IOC_POOL_IMPORT, 571 ZFS_IOC_POOL_EXPORT, 572 ZFS_IOC_POOL_CONFIGS, 573 ZFS_IOC_POOL_STATS, 574 ZFS_IOC_POOL_TRYIMPORT, 575 ZFS_IOC_POOL_SCRUB, 576 ZFS_IOC_POOL_FREEZE, 577 ZFS_IOC_POOL_UPGRADE, 578 ZFS_IOC_POOL_GET_HISTORY, 579 ZFS_IOC_VDEV_ADD, 580 ZFS_IOC_VDEV_REMOVE, 581 ZFS_IOC_VDEV_SET_STATE, 582 ZFS_IOC_VDEV_ATTACH, 583 ZFS_IOC_VDEV_DETACH, 584 ZFS_IOC_VDEV_SETPATH, 585 ZFS_IOC_VDEV_SETFRU, 586 ZFS_IOC_OBJSET_STATS, 587 ZFS_IOC_OBJSET_ZPLPROPS, 588 ZFS_IOC_DATASET_LIST_NEXT, 589 ZFS_IOC_SNAPSHOT_LIST_NEXT, 590 ZFS_IOC_SET_PROP, 591 ZFS_IOC_CREATE_MINOR, 592 ZFS_IOC_REMOVE_MINOR, 593 ZFS_IOC_CREATE, 594 ZFS_IOC_DESTROY, 595 ZFS_IOC_ROLLBACK, 596 ZFS_IOC_RENAME, 597 ZFS_IOC_RECV, 598 ZFS_IOC_SEND, 599 ZFS_IOC_INJECT_FAULT, 600 ZFS_IOC_CLEAR_FAULT, 601 ZFS_IOC_INJECT_LIST_NEXT, 602 ZFS_IOC_ERROR_LOG, 603 ZFS_IOC_CLEAR, 604 ZFS_IOC_PROMOTE, 605 ZFS_IOC_DESTROY_SNAPS, 606 ZFS_IOC_SNAPSHOT, 607 ZFS_IOC_DSOBJ_TO_DSNAME, 608 ZFS_IOC_OBJ_TO_PATH, 609 ZFS_IOC_POOL_SET_PROPS, 610 ZFS_IOC_POOL_GET_PROPS, 611 ZFS_IOC_SET_FSACL, 612 ZFS_IOC_GET_FSACL, 613 ZFS_IOC_ISCSI_PERM_CHECK, 614 ZFS_IOC_SHARE, 615 ZFS_IOC_INHERIT_PROP, 616 ZFS_IOC_SMB_ACL, 617 ZFS_IOC_USERSPACE_ONE, 618 ZFS_IOC_USERSPACE_MANY, 619 ZFS_IOC_USERSPACE_UPGRADE, 620 ZFS_IOC_HOLD, 621 ZFS_IOC_RELEASE, 622 ZFS_IOC_GET_HOLDS 623 } zfs_ioc_t; 624 625 /* 626 * Internal SPA load state. Used by FMA diagnosis engine. 627 */ 628 typedef enum { 629 SPA_LOAD_NONE, /* no load in progress */ 630 SPA_LOAD_OPEN, /* normal open */ 631 SPA_LOAD_IMPORT, /* import in progress */ 632 SPA_LOAD_TRYIMPORT /* tryimport in progress */ 633 } spa_load_state_t; 634 635 /* 636 * Bookmark name values. 637 */ 638 #define ZPOOL_ERR_LIST "error list" 639 #define ZPOOL_ERR_DATASET "dataset" 640 #define ZPOOL_ERR_OBJECT "object" 641 642 #define HIS_MAX_RECORD_LEN (MAXPATHLEN + MAXPATHLEN + 1) 643 644 /* 645 * The following are names used in the nvlist describing 646 * the pool's history log. 647 */ 648 #define ZPOOL_HIST_RECORD "history record" 649 #define ZPOOL_HIST_TIME "history time" 650 #define ZPOOL_HIST_CMD "history command" 651 #define ZPOOL_HIST_WHO "history who" 652 #define ZPOOL_HIST_ZONE "history zone" 653 #define ZPOOL_HIST_HOST "history hostname" 654 #define ZPOOL_HIST_TXG "history txg" 655 #define ZPOOL_HIST_INT_EVENT "history internal event" 656 #define ZPOOL_HIST_INT_STR "history internal str" 657 658 /* 659 * Flags for ZFS_IOC_VDEV_SET_STATE 660 */ 661 #define ZFS_ONLINE_CHECKREMOVE 0x1 662 #define ZFS_ONLINE_UNSPARE 0x2 663 #define ZFS_ONLINE_FORCEFAULT 0x4 664 #define ZFS_ONLINE_EXPAND 0x8 665 #define ZFS_OFFLINE_TEMPORARY 0x1 666 667 /* 668 * Sysevent payload members. ZFS will generate the following sysevents with the 669 * given payloads: 670 * 671 * ESC_ZFS_RESILVER_START 672 * ESC_ZFS_RESILVER_END 673 * ESC_ZFS_POOL_DESTROY 674 * 675 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 676 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 677 * 678 * ESC_ZFS_VDEV_REMOVE 679 * ESC_ZFS_VDEV_CLEAR 680 * ESC_ZFS_VDEV_CHECK 681 * 682 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 683 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 684 * ZFS_EV_VDEV_PATH DATA_TYPE_STRING (optional) 685 * ZFS_EV_VDEV_GUID DATA_TYPE_UINT64 686 */ 687 #define ZFS_EV_POOL_NAME "pool_name" 688 #define ZFS_EV_POOL_GUID "pool_guid" 689 #define ZFS_EV_VDEV_PATH "vdev_path" 690 #define ZFS_EV_VDEV_GUID "vdev_guid" 691 692 /* 693 * Note: This is encoded on-disk, so new events must be added to the 694 * end, and unused events can not be removed. Be sure to edit 695 * zpool_main.c: hist_event_table[]. 696 */ 697 typedef enum history_internal_events { 698 LOG_NO_EVENT = 0, 699 LOG_POOL_CREATE, 700 LOG_POOL_VDEV_ADD, 701 LOG_POOL_REMOVE, 702 LOG_POOL_DESTROY, 703 LOG_POOL_EXPORT, 704 LOG_POOL_IMPORT, 705 LOG_POOL_VDEV_ATTACH, 706 LOG_POOL_VDEV_REPLACE, 707 LOG_POOL_VDEV_DETACH, 708 LOG_POOL_VDEV_ONLINE, 709 LOG_POOL_VDEV_OFFLINE, 710 LOG_POOL_UPGRADE, 711 LOG_POOL_CLEAR, 712 LOG_POOL_SCRUB, 713 LOG_POOL_PROPSET, 714 LOG_DS_CREATE, 715 LOG_DS_CLONE, 716 LOG_DS_DESTROY, 717 LOG_DS_DESTROY_BEGIN, 718 LOG_DS_INHERIT, 719 LOG_DS_PROPSET, 720 LOG_DS_QUOTA, 721 LOG_DS_PERM_UPDATE, 722 LOG_DS_PERM_REMOVE, 723 LOG_DS_PERM_WHO_REMOVE, 724 LOG_DS_PROMOTE, 725 LOG_DS_RECEIVE, 726 LOG_DS_RENAME, 727 LOG_DS_RESERVATION, 728 LOG_DS_REPLAY_INC_SYNC, 729 LOG_DS_REPLAY_FULL_SYNC, 730 LOG_DS_ROLLBACK, 731 LOG_DS_SNAPSHOT, 732 LOG_DS_UPGRADE, 733 LOG_DS_REFQUOTA, 734 LOG_DS_REFRESERV, 735 LOG_POOL_SCRUB_DONE, 736 LOG_DS_USER_HOLD, 737 LOG_DS_USER_RELEASE, 738 LOG_END 739 } history_internal_events_t; 740 741 #ifdef __cplusplus 742 } 743 #endif 744 745 #endif /* _SYS_FS_ZFS_H */ 746