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