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.
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.
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]
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
25 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
26 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
27 * Copyright (c) 2012, Martin Matuska <mm@FreeBSD.org>. All rights reserved.
28 * Copyright (c) 2014 Integros [integros.com]
31 /* Portions Copyright 2010 Robert Milkowski */
36 #include <sys/types.h>
37 #include <sys/ioccom.h>
45 * Types and constants shared between userland and the kernel.
49 * Each dataset can be one of the following types. These constants can be
50 * combined into masks that can be passed to various functions.
53 ZFS_TYPE_FILESYSTEM = (1 << 0),
54 ZFS_TYPE_SNAPSHOT = (1 << 1),
55 ZFS_TYPE_VOLUME = (1 << 2),
56 ZFS_TYPE_POOL = (1 << 3),
57 ZFS_TYPE_BOOKMARK = (1 << 4)
61 * NB: lzc_dataset_type should be updated whenever a new objset type is added,
62 * if it represents a real type of a dataset that can be created from userland.
64 typedef enum dmu_objset_type {
69 DMU_OST_OTHER, /* For testing only! */
70 DMU_OST_ANY, /* Be careful! */
74 #define ZFS_TYPE_DATASET \
75 (ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME | ZFS_TYPE_SNAPSHOT)
78 * All of these include the terminating NUL byte.
80 #define ZAP_MAXNAMELEN 256
81 #define ZAP_MAXVALUELEN (1024 * 8)
82 #define ZAP_OLDMAXVALUELEN 1024
83 #define ZFS_MAX_DATASET_NAME_LEN 256
86 * Dataset properties are identified by these constants and must be added to
87 * the end of this list to ensure that external consumers are not affected
88 * by the change. If you make any changes to this list, be sure to update
89 * the property table in usr/src/common/zfs/zfs_prop.c.
97 ZFS_PROP_COMPRESSRATIO,
101 ZFS_PROP_RESERVATION,
103 ZFS_PROP_VOLBLOCKSIZE,
108 ZFS_PROP_COMPRESSION,
118 ZFS_PROP_CREATETXG, /* not exposed to the user */
119 ZFS_PROP_NAME, /* not exposed to the user */
121 ZFS_PROP_ISCSIOPTIONS, /* not exposed to the user */
123 ZFS_PROP_NUMCLONES, /* not exposed to the user */
133 ZFS_PROP_REFRESERVATION,
135 ZFS_PROP_PRIMARYCACHE,
136 ZFS_PROP_SECONDARYCACHE,
140 ZFS_PROP_USEDREFRESERV,
141 ZFS_PROP_USERACCOUNTING, /* not exposed to the user */
142 ZFS_PROP_STMF_SHAREINFO, /* not exposed to the user */
143 ZFS_PROP_DEFER_DESTROY,
146 ZFS_PROP_UNIQUE, /* not exposed to the user */
147 ZFS_PROP_OBJSETID, /* not exposed to the user */
154 ZFS_PROP_LOGICALUSED,
155 ZFS_PROP_LOGICALREFERENCED,
156 ZFS_PROP_INCONSISTENT, /* not exposed to the user */
158 ZFS_PROP_FILESYSTEM_LIMIT,
159 ZFS_PROP_SNAPSHOT_LIMIT,
160 ZFS_PROP_FILESYSTEM_COUNT,
161 ZFS_PROP_SNAPSHOT_COUNT,
162 ZFS_PROP_REDUNDANT_METADATA,
164 ZFS_PROP_RECEIVE_RESUME_TOKEN,
173 ZFS_NUM_USERQUOTA_PROPS
174 } zfs_userquota_prop_t;
176 extern const char *zfs_userquota_prop_prefixes[ZFS_NUM_USERQUOTA_PROPS];
179 * Pool properties are identified by these constants and must be added to the
180 * end of this list to ensure that external consumers are not affected
181 * by the change. If you make any changes to this list, be sure to update
182 * the property table in usr/src/common/zfs/zpool_prop.c.
193 ZPOOL_PROP_DELEGATION,
194 ZPOOL_PROP_AUTOREPLACE,
195 ZPOOL_PROP_CACHEFILE,
196 ZPOOL_PROP_FAILUREMODE,
197 ZPOOL_PROP_LISTSNAPS,
198 ZPOOL_PROP_AUTOEXPAND,
199 ZPOOL_PROP_DEDUPDITTO,
200 ZPOOL_PROP_DEDUPRATIO,
202 ZPOOL_PROP_ALLOCATED,
207 ZPOOL_PROP_FRAGMENTATION,
209 ZPOOL_PROP_MAXBLOCKSIZE,
214 /* Small enough to not hog a whole line of printout in zpool(1M). */
215 #define ZPROP_MAX_COMMENT 32
217 #define ZPROP_CONT -2
218 #define ZPROP_INVAL -1
220 #define ZPROP_VALUE "value"
221 #define ZPROP_SOURCE "source"
224 ZPROP_SRC_NONE = 0x1,
225 ZPROP_SRC_DEFAULT = 0x2,
226 ZPROP_SRC_TEMPORARY = 0x4,
227 ZPROP_SRC_LOCAL = 0x8,
228 ZPROP_SRC_INHERITED = 0x10,
229 ZPROP_SRC_RECEIVED = 0x20
232 #define ZPROP_SRC_ALL 0x3f
234 #define ZPROP_SOURCE_VAL_RECVD "$recvd"
235 #define ZPROP_N_MORE_ERRORS "N_MORE_ERRORS"
237 * Dataset flag implemented as a special entry in the props zap object
238 * indicating that the dataset has received properties on or after
239 * SPA_VERSION_RECVD_PROPS. The first such receive blows away local properties
240 * just as it did in earlier versions, and thereafter, local properties are
243 #define ZPROP_HAS_RECVD "$hasrecvd"
246 ZPROP_ERR_NOCLEAR = 0x1, /* failure to clear existing props */
247 ZPROP_ERR_NORESTORE = 0x2 /* failure to restore props on error */
250 typedef int (*zprop_func)(int, void *);
253 * Properties to be set on the root file system of a new pool
254 * are stuffed into their own nvlist, which is then included in
255 * the properties nvlist with the pool properties.
257 #define ZPOOL_ROOTFS_PROPS "root-props-nvl"
260 * Dataset property functions shared between libzfs and kernel.
262 const char *zfs_prop_default_string(zfs_prop_t);
263 uint64_t zfs_prop_default_numeric(zfs_prop_t);
264 boolean_t zfs_prop_readonly(zfs_prop_t);
265 boolean_t zfs_prop_inheritable(zfs_prop_t);
266 boolean_t zfs_prop_setonce(zfs_prop_t);
267 const char *zfs_prop_to_name(zfs_prop_t);
268 zfs_prop_t zfs_name_to_prop(const char *);
269 boolean_t zfs_prop_user(const char *);
270 boolean_t zfs_prop_userquota(const char *);
271 int zfs_prop_index_to_string(zfs_prop_t, uint64_t, const char **);
272 int zfs_prop_string_to_index(zfs_prop_t, const char *, uint64_t *);
273 uint64_t zfs_prop_random_value(zfs_prop_t, uint64_t seed);
274 boolean_t zfs_prop_valid_for_type(int, zfs_type_t);
277 * Pool property functions shared between libzfs and kernel.
279 zpool_prop_t zpool_name_to_prop(const char *);
280 const char *zpool_prop_to_name(zpool_prop_t);
281 const char *zpool_prop_default_string(zpool_prop_t);
282 uint64_t zpool_prop_default_numeric(zpool_prop_t);
283 boolean_t zpool_prop_readonly(zpool_prop_t);
284 boolean_t zpool_prop_feature(const char *);
285 boolean_t zpool_prop_unsupported(const char *name);
286 int zpool_prop_index_to_string(zpool_prop_t, uint64_t, const char **);
287 int zpool_prop_string_to_index(zpool_prop_t, const char *, uint64_t *);
288 uint64_t zpool_prop_random_value(zpool_prop_t, uint64_t seed);
291 * Definitions for the Delegation.
294 ZFS_DELEG_WHO_UNKNOWN = 0,
295 ZFS_DELEG_USER = 'u',
296 ZFS_DELEG_USER_SETS = 'U',
297 ZFS_DELEG_GROUP = 'g',
298 ZFS_DELEG_GROUP_SETS = 'G',
299 ZFS_DELEG_EVERYONE = 'e',
300 ZFS_DELEG_EVERYONE_SETS = 'E',
301 ZFS_DELEG_CREATE = 'c',
302 ZFS_DELEG_CREATE_SETS = 'C',
303 ZFS_DELEG_NAMED_SET = 's',
304 ZFS_DELEG_NAMED_SET_SETS = 'S'
305 } zfs_deleg_who_type_t;
309 ZFS_DELEG_PERM_LOCAL = 1,
310 ZFS_DELEG_PERM_DESCENDENT = 2,
311 ZFS_DELEG_PERM_LOCALDESCENDENT = 3,
312 ZFS_DELEG_PERM_CREATE = 4
313 } zfs_deleg_inherit_t;
315 #define ZFS_DELEG_PERM_UID "uid"
316 #define ZFS_DELEG_PERM_GID "gid"
317 #define ZFS_DELEG_PERM_GROUPS "groups"
319 #define ZFS_MLSLABEL_DEFAULT "none"
321 #define ZFS_SMB_ACL_SRC "src"
322 #define ZFS_SMB_ACL_TARGET "target"
325 ZFS_CANMOUNT_OFF = 0,
327 ZFS_CANMOUNT_NOAUTO = 2
328 } zfs_canmount_type_t;
331 ZFS_LOGBIAS_LATENCY = 0,
332 ZFS_LOGBIAS_THROUGHPUT = 1
335 typedef enum zfs_share_op {
342 typedef enum zfs_smb_acl_op {
349 typedef enum zfs_cache_type {
351 ZFS_CACHE_METADATA = 1,
356 ZFS_SYNC_STANDARD = 0,
358 ZFS_SYNC_DISABLED = 2
362 ZFS_VOLMODE_DEFAULT = 0,
363 ZFS_VOLMODE_GEOM = 1,
369 ZFS_REDUNDANT_METADATA_ALL,
370 ZFS_REDUNDANT_METADATA_MOST
371 } zfs_redundant_metadata_type_t;
374 * On-disk version number.
376 #define SPA_VERSION_1 1ULL
377 #define SPA_VERSION_2 2ULL
378 #define SPA_VERSION_3 3ULL
379 #define SPA_VERSION_4 4ULL
380 #define SPA_VERSION_5 5ULL
381 #define SPA_VERSION_6 6ULL
382 #define SPA_VERSION_7 7ULL
383 #define SPA_VERSION_8 8ULL
384 #define SPA_VERSION_9 9ULL
385 #define SPA_VERSION_10 10ULL
386 #define SPA_VERSION_11 11ULL
387 #define SPA_VERSION_12 12ULL
388 #define SPA_VERSION_13 13ULL
389 #define SPA_VERSION_14 14ULL
390 #define SPA_VERSION_15 15ULL
391 #define SPA_VERSION_16 16ULL
392 #define SPA_VERSION_17 17ULL
393 #define SPA_VERSION_18 18ULL
394 #define SPA_VERSION_19 19ULL
395 #define SPA_VERSION_20 20ULL
396 #define SPA_VERSION_21 21ULL
397 #define SPA_VERSION_22 22ULL
398 #define SPA_VERSION_23 23ULL
399 #define SPA_VERSION_24 24ULL
400 #define SPA_VERSION_25 25ULL
401 #define SPA_VERSION_26 26ULL
402 #define SPA_VERSION_27 27ULL
403 #define SPA_VERSION_28 28ULL
404 #define SPA_VERSION_5000 5000ULL
407 * When bumping up SPA_VERSION, make sure GRUB ZFS understands the on-disk
408 * format change. Go to usr/src/grub/grub-0.97/stage2/{zfs-include/, fsys_zfs*},
409 * and do the appropriate changes. Also bump the version number in
410 * usr/src/grub/capability.
412 #define SPA_VERSION SPA_VERSION_5000
413 #define SPA_VERSION_STRING "5000"
416 * Symbolic names for the changes that caused a SPA_VERSION switch.
417 * Used in the code when checking for presence or absence of a feature.
418 * Feel free to define multiple symbolic names for each version if there
419 * were multiple changes to on-disk structures during that version.
421 * NOTE: When checking the current SPA_VERSION in your code, be sure
422 * to use spa_version() since it reports the version of the
423 * last synced uberblock. Checking the in-flight version can
424 * be dangerous in some cases.
426 #define SPA_VERSION_INITIAL SPA_VERSION_1
427 #define SPA_VERSION_DITTO_BLOCKS SPA_VERSION_2
428 #define SPA_VERSION_SPARES SPA_VERSION_3
429 #define SPA_VERSION_RAIDZ2 SPA_VERSION_3
430 #define SPA_VERSION_BPOBJ_ACCOUNT SPA_VERSION_3
431 #define SPA_VERSION_RAIDZ_DEFLATE SPA_VERSION_3
432 #define SPA_VERSION_DNODE_BYTES SPA_VERSION_3
433 #define SPA_VERSION_ZPOOL_HISTORY SPA_VERSION_4
434 #define SPA_VERSION_GZIP_COMPRESSION SPA_VERSION_5
435 #define SPA_VERSION_BOOTFS SPA_VERSION_6
436 #define SPA_VERSION_SLOGS SPA_VERSION_7
437 #define SPA_VERSION_DELEGATED_PERMS SPA_VERSION_8
438 #define SPA_VERSION_FUID SPA_VERSION_9
439 #define SPA_VERSION_REFRESERVATION SPA_VERSION_9
440 #define SPA_VERSION_REFQUOTA SPA_VERSION_9
441 #define SPA_VERSION_UNIQUE_ACCURATE SPA_VERSION_9
442 #define SPA_VERSION_L2CACHE SPA_VERSION_10
443 #define SPA_VERSION_NEXT_CLONES SPA_VERSION_11
444 #define SPA_VERSION_ORIGIN SPA_VERSION_11
445 #define SPA_VERSION_DSL_SCRUB SPA_VERSION_11
446 #define SPA_VERSION_SNAP_PROPS SPA_VERSION_12
447 #define SPA_VERSION_USED_BREAKDOWN SPA_VERSION_13
448 #define SPA_VERSION_PASSTHROUGH_X SPA_VERSION_14
449 #define SPA_VERSION_USERSPACE SPA_VERSION_15
450 #define SPA_VERSION_STMF_PROP SPA_VERSION_16
451 #define SPA_VERSION_RAIDZ3 SPA_VERSION_17
452 #define SPA_VERSION_USERREFS SPA_VERSION_18
453 #define SPA_VERSION_HOLES SPA_VERSION_19
454 #define SPA_VERSION_ZLE_COMPRESSION SPA_VERSION_20
455 #define SPA_VERSION_DEDUP SPA_VERSION_21
456 #define SPA_VERSION_RECVD_PROPS SPA_VERSION_22
457 #define SPA_VERSION_SLIM_ZIL SPA_VERSION_23
458 #define SPA_VERSION_SA SPA_VERSION_24
459 #define SPA_VERSION_SCAN SPA_VERSION_25
460 #define SPA_VERSION_DIR_CLONES SPA_VERSION_26
461 #define SPA_VERSION_DEADLISTS SPA_VERSION_26
462 #define SPA_VERSION_FAST_SNAP SPA_VERSION_27
463 #define SPA_VERSION_MULTI_REPLACE SPA_VERSION_28
464 #define SPA_VERSION_BEFORE_FEATURES SPA_VERSION_28
465 #define SPA_VERSION_FEATURES SPA_VERSION_5000
467 #define SPA_VERSION_IS_SUPPORTED(v) \
468 (((v) >= SPA_VERSION_INITIAL && (v) <= SPA_VERSION_BEFORE_FEATURES) || \
469 ((v) >= SPA_VERSION_FEATURES && (v) <= SPA_VERSION))
472 * ZPL version - rev'd whenever an incompatible on-disk format change
473 * occurs. This is independent of SPA/DMU/ZAP versioning. You must
474 * also update the version_table[] and help message in zfs_prop.c.
476 * When changing, be sure to teach GRUB how to read the new format!
477 * See usr/src/grub/grub-0.97/stage2/{zfs-include/,fsys_zfs*}
479 #define ZPL_VERSION_1 1ULL
480 #define ZPL_VERSION_2 2ULL
481 #define ZPL_VERSION_3 3ULL
482 #define ZPL_VERSION_4 4ULL
483 #define ZPL_VERSION_5 5ULL
484 #define ZPL_VERSION ZPL_VERSION_5
485 #define ZPL_VERSION_STRING "5"
487 #define ZPL_VERSION_INITIAL ZPL_VERSION_1
488 #define ZPL_VERSION_DIRENT_TYPE ZPL_VERSION_2
489 #define ZPL_VERSION_FUID ZPL_VERSION_3
490 #define ZPL_VERSION_NORMALIZATION ZPL_VERSION_3
491 #define ZPL_VERSION_SYSATTR ZPL_VERSION_3
492 #define ZPL_VERSION_USERSPACE ZPL_VERSION_4
493 #define ZPL_VERSION_SA ZPL_VERSION_5
495 /* Rewind request information */
496 #define ZPOOL_NO_REWIND 1 /* No policy - default behavior */
497 #define ZPOOL_NEVER_REWIND 2 /* Do not search for best txg or rewind */
498 #define ZPOOL_TRY_REWIND 4 /* Search for best txg, but do not rewind */
499 #define ZPOOL_DO_REWIND 8 /* Rewind to best txg w/in deferred frees */
500 #define ZPOOL_EXTREME_REWIND 16 /* Allow extreme measures to find best txg */
501 #define ZPOOL_REWIND_MASK 28 /* All the possible rewind bits */
502 #define ZPOOL_REWIND_POLICIES 31 /* All the possible policy bits */
504 typedef struct zpool_rewind_policy {
505 uint32_t zrp_request; /* rewind behavior requested */
506 uint64_t zrp_maxmeta; /* max acceptable meta-data errors */
507 uint64_t zrp_maxdata; /* max acceptable data errors */
508 uint64_t zrp_txg; /* specific txg to load */
509 } zpool_rewind_policy_t;
512 * The following are configuration names used in the nvlist describing a pool's
515 #define ZPOOL_CONFIG_VERSION "version"
516 #define ZPOOL_CONFIG_POOL_NAME "name"
517 #define ZPOOL_CONFIG_POOL_STATE "state"
518 #define ZPOOL_CONFIG_POOL_TXG "txg"
519 #define ZPOOL_CONFIG_POOL_GUID "pool_guid"
520 #define ZPOOL_CONFIG_CREATE_TXG "create_txg"
521 #define ZPOOL_CONFIG_TOP_GUID "top_guid"
522 #define ZPOOL_CONFIG_VDEV_TREE "vdev_tree"
523 #define ZPOOL_CONFIG_TYPE "type"
524 #define ZPOOL_CONFIG_CHILDREN "children"
525 #define ZPOOL_CONFIG_ID "id"
526 #define ZPOOL_CONFIG_GUID "guid"
527 #define ZPOOL_CONFIG_PATH "path"
528 #define ZPOOL_CONFIG_DEVID "devid"
529 #define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array"
530 #define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift"
531 #define ZPOOL_CONFIG_ASHIFT "ashift"
532 #define ZPOOL_CONFIG_ASIZE "asize"
533 #define ZPOOL_CONFIG_DTL "DTL"
534 #define ZPOOL_CONFIG_SCAN_STATS "scan_stats" /* not stored on disk */
535 #define ZPOOL_CONFIG_VDEV_STATS "vdev_stats" /* not stored on disk */
536 #define ZPOOL_CONFIG_WHOLE_DISK "whole_disk"
537 #define ZPOOL_CONFIG_ERRCOUNT "error_count"
538 #define ZPOOL_CONFIG_NOT_PRESENT "not_present"
539 #define ZPOOL_CONFIG_SPARES "spares"
540 #define ZPOOL_CONFIG_IS_SPARE "is_spare"
541 #define ZPOOL_CONFIG_NPARITY "nparity"
542 #define ZPOOL_CONFIG_HOSTID "hostid"
543 #define ZPOOL_CONFIG_HOSTNAME "hostname"
544 #define ZPOOL_CONFIG_LOADED_TIME "initial_load_time"
545 #define ZPOOL_CONFIG_UNSPARE "unspare"
546 #define ZPOOL_CONFIG_PHYS_PATH "phys_path"
547 #define ZPOOL_CONFIG_IS_LOG "is_log"
548 #define ZPOOL_CONFIG_L2CACHE "l2cache"
549 #define ZPOOL_CONFIG_HOLE_ARRAY "hole_array"
550 #define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children"
551 #define ZPOOL_CONFIG_IS_HOLE "is_hole"
552 #define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram"
553 #define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats"
554 #define ZPOOL_CONFIG_DDT_STATS "ddt_stats"
555 #define ZPOOL_CONFIG_SPLIT "splitcfg"
556 #define ZPOOL_CONFIG_ORIG_GUID "orig_guid"
557 #define ZPOOL_CONFIG_SPLIT_GUID "split_guid"
558 #define ZPOOL_CONFIG_SPLIT_LIST "guid_list"
559 #define ZPOOL_CONFIG_REMOVING "removing"
560 #define ZPOOL_CONFIG_RESILVER_TXG "resilver_txg"
561 #define ZPOOL_CONFIG_COMMENT "comment"
562 #define ZPOOL_CONFIG_SUSPENDED "suspended" /* not stored on disk */
563 #define ZPOOL_CONFIG_TIMESTAMP "timestamp" /* not stored on disk */
564 #define ZPOOL_CONFIG_BOOTFS "bootfs" /* not stored on disk */
565 #define ZPOOL_CONFIG_MISSING_DEVICES "missing_vdevs" /* not stored on disk */
566 #define ZPOOL_CONFIG_LOAD_INFO "load_info" /* not stored on disk */
567 #define ZPOOL_CONFIG_REWIND_INFO "rewind_info" /* not stored on disk */
568 #define ZPOOL_CONFIG_UNSUP_FEAT "unsup_feat" /* not stored on disk */
569 #define ZPOOL_CONFIG_ENABLED_FEAT "enabled_feat" /* not stored on disk */
570 #define ZPOOL_CONFIG_CAN_RDONLY "can_rdonly" /* not stored on disk */
571 #define ZPOOL_CONFIG_FEATURES_FOR_READ "features_for_read"
572 #define ZPOOL_CONFIG_FEATURE_STATS "feature_stats" /* not stored on disk */
574 * The persistent vdev state is stored as separate values rather than a single
575 * 'vdev_state' entry. This is because a device can be in multiple states, such
576 * as offline and degraded.
578 #define ZPOOL_CONFIG_OFFLINE "offline"
579 #define ZPOOL_CONFIG_FAULTED "faulted"
580 #define ZPOOL_CONFIG_DEGRADED "degraded"
581 #define ZPOOL_CONFIG_REMOVED "removed"
582 #define ZPOOL_CONFIG_FRU "fru"
583 #define ZPOOL_CONFIG_AUX_STATE "aux_state"
585 /* Rewind policy parameters */
586 #define ZPOOL_REWIND_POLICY "rewind-policy"
587 #define ZPOOL_REWIND_REQUEST "rewind-request"
588 #define ZPOOL_REWIND_REQUEST_TXG "rewind-request-txg"
589 #define ZPOOL_REWIND_META_THRESH "rewind-meta-thresh"
590 #define ZPOOL_REWIND_DATA_THRESH "rewind-data-thresh"
592 /* Rewind data discovered */
593 #define ZPOOL_CONFIG_LOAD_TIME "rewind_txg_ts"
594 #define ZPOOL_CONFIG_LOAD_DATA_ERRORS "verify_data_errors"
595 #define ZPOOL_CONFIG_REWIND_TIME "seconds_of_rewind"
597 #define VDEV_TYPE_ROOT "root"
598 #define VDEV_TYPE_MIRROR "mirror"
599 #define VDEV_TYPE_REPLACING "replacing"
600 #define VDEV_TYPE_RAIDZ "raidz"
601 #define VDEV_TYPE_DISK "disk"
602 #define VDEV_TYPE_FILE "file"
603 #define VDEV_TYPE_MISSING "missing"
604 #define VDEV_TYPE_HOLE "hole"
605 #define VDEV_TYPE_SPARE "spare"
606 #define VDEV_TYPE_LOG "log"
607 #define VDEV_TYPE_L2CACHE "l2cache"
610 * This is needed in userland to report the minimum necessary device size.
612 * Note that the zfs test suite uses 64MB vdevs.
614 #define SPA_MINDEVSIZE (64ULL << 20)
617 * Set if the fragmentation has not yet been calculated. This can happen
618 * because the space maps have not been upgraded or the histogram feature
621 #define ZFS_FRAG_INVALID UINT64_MAX
624 * The location of the pool configuration repository, shared between kernel and
627 #define ZPOOL_CACHE "/boot/zfs/zpool.cache"
630 * vdev states are ordered from least to most healthy.
631 * A vdev that's CANT_OPEN or below is considered unusable.
633 typedef enum vdev_state {
634 VDEV_STATE_UNKNOWN = 0, /* Uninitialized vdev */
635 VDEV_STATE_CLOSED, /* Not currently open */
636 VDEV_STATE_OFFLINE, /* Not allowed to open */
637 VDEV_STATE_REMOVED, /* Explicitly removed from system */
638 VDEV_STATE_CANT_OPEN, /* Tried to open, but failed */
639 VDEV_STATE_FAULTED, /* External request to fault device */
640 VDEV_STATE_DEGRADED, /* Replicated vdev with unhealthy kids */
641 VDEV_STATE_HEALTHY /* Presumed good */
644 #define VDEV_STATE_ONLINE VDEV_STATE_HEALTHY
647 * vdev aux states. When a vdev is in the CANT_OPEN state, the aux field
648 * of the vdev stats structure uses these constants to distinguish why.
650 typedef enum vdev_aux {
651 VDEV_AUX_NONE, /* no error */
652 VDEV_AUX_OPEN_FAILED, /* ldi_open_*() or vn_open() failed */
653 VDEV_AUX_CORRUPT_DATA, /* bad label or disk contents */
654 VDEV_AUX_NO_REPLICAS, /* insufficient number of replicas */
655 VDEV_AUX_BAD_GUID_SUM, /* vdev guid sum doesn't match */
656 VDEV_AUX_TOO_SMALL, /* vdev size is too small */
657 VDEV_AUX_BAD_LABEL, /* the label is OK but invalid */
658 VDEV_AUX_VERSION_NEWER, /* on-disk version is too new */
659 VDEV_AUX_VERSION_OLDER, /* on-disk version is too old */
660 VDEV_AUX_UNSUP_FEAT, /* unsupported features */
661 VDEV_AUX_SPARED, /* hot spare used in another pool */
662 VDEV_AUX_ERR_EXCEEDED, /* too many errors */
663 VDEV_AUX_IO_FAILURE, /* experienced I/O failure */
664 VDEV_AUX_BAD_LOG, /* cannot read log chain(s) */
665 VDEV_AUX_EXTERNAL, /* external diagnosis */
666 VDEV_AUX_SPLIT_POOL, /* vdev was split off into another pool */
667 VDEV_AUX_ASHIFT_TOO_BIG /* vdev's min block size is too large */
671 * pool state. The following states are written to disk as part of the normal
672 * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining
673 * states are software abstractions used at various levels to communicate
676 typedef enum pool_state {
677 POOL_STATE_ACTIVE = 0, /* In active use */
678 POOL_STATE_EXPORTED, /* Explicitly exported */
679 POOL_STATE_DESTROYED, /* Explicitly destroyed */
680 POOL_STATE_SPARE, /* Reserved for hot spare use */
681 POOL_STATE_L2CACHE, /* Level 2 ARC device */
682 POOL_STATE_UNINITIALIZED, /* Internal spa_t state */
683 POOL_STATE_UNAVAIL, /* Internal libzfs state */
684 POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */
690 typedef enum pool_scan_func {
698 * ZIO types. Needed to interpret vdev statistics below.
700 typedef enum zio_type {
711 * Pool statistics. Note: all fields should be 64-bit because this
712 * is passed between kernel and userland as an nvlist uint64 array.
714 typedef struct pool_scan_stat {
715 /* values stored on disk */
716 uint64_t pss_func; /* pool_scan_func_t */
717 uint64_t pss_state; /* dsl_scan_state_t */
718 uint64_t pss_start_time; /* scan start time */
719 uint64_t pss_end_time; /* scan end time */
720 uint64_t pss_to_examine; /* total bytes to scan */
721 uint64_t pss_examined; /* total examined bytes */
722 uint64_t pss_to_process; /* total bytes to process */
723 uint64_t pss_processed; /* total processed bytes */
724 uint64_t pss_errors; /* scan errors */
726 /* values not stored on disk */
727 uint64_t pss_pass_exam; /* examined bytes per scan pass */
728 uint64_t pss_pass_start; /* start time of a scan pass */
731 typedef enum dsl_scan_state {
741 * Vdev statistics. Note: all fields should be 64-bit because this
742 * is passed between kernel and userland as an nvlist uint64 array.
744 typedef struct vdev_stat {
745 hrtime_t vs_timestamp; /* time since vdev load */
746 uint64_t vs_state; /* vdev state */
747 uint64_t vs_aux; /* see vdev_aux_t */
748 uint64_t vs_alloc; /* space allocated */
749 uint64_t vs_space; /* total capacity */
750 uint64_t vs_dspace; /* deflated capacity */
751 uint64_t vs_rsize; /* replaceable dev size */
752 uint64_t vs_esize; /* expandable dev size */
753 uint64_t vs_ops[ZIO_TYPES]; /* operation count */
754 uint64_t vs_bytes[ZIO_TYPES]; /* bytes read/written */
755 uint64_t vs_read_errors; /* read errors */
756 uint64_t vs_write_errors; /* write errors */
757 uint64_t vs_checksum_errors; /* checksum errors */
758 uint64_t vs_self_healed; /* self-healed bytes */
759 uint64_t vs_scan_removing; /* removing? */
760 uint64_t vs_scan_processed; /* scan processed bytes */
761 uint64_t vs_configured_ashift; /* TLV vdev_ashift */
762 uint64_t vs_logical_ashift; /* vdev_logical_ashift */
763 uint64_t vs_physical_ashift; /* vdev_physical_ashift */
764 uint64_t vs_fragmentation; /* device fragmentation */
766 #define VDEV_STAT_VALID(field, uint64_t_field_count) \
767 ((uint64_t_field_count * sizeof(uint64_t)) >= \
768 (offsetof(vdev_stat_t, field) + sizeof(((vdev_stat_t *)NULL)->field)))
771 * DDT statistics. Note: all fields should be 64-bit because this
772 * is passed between kernel and userland as an nvlist uint64 array.
774 typedef struct ddt_object {
775 uint64_t ddo_count; /* number of elments in ddt */
776 uint64_t ddo_dspace; /* size of ddt on disk */
777 uint64_t ddo_mspace; /* size of ddt in-core */
780 typedef struct ddt_stat {
781 uint64_t dds_blocks; /* blocks */
782 uint64_t dds_lsize; /* logical size */
783 uint64_t dds_psize; /* physical size */
784 uint64_t dds_dsize; /* deflated allocated size */
785 uint64_t dds_ref_blocks; /* referenced blocks */
786 uint64_t dds_ref_lsize; /* referenced lsize * refcnt */
787 uint64_t dds_ref_psize; /* referenced psize * refcnt */
788 uint64_t dds_ref_dsize; /* referenced dsize * refcnt */
791 typedef struct ddt_histogram {
792 ddt_stat_t ddh_stat[64]; /* power-of-two histogram buckets */
795 #define ZVOL_DRIVER "zvol"
796 #define ZFS_DRIVER "zfs"
797 #define ZFS_DEV_NAME "zfs"
798 #define ZFS_DEV "/dev/" ZFS_DEV_NAME
799 #define ZFS_DISK_ROOT "/dev/dsk"
800 #define ZFS_DISK_ROOTD ZFS_DISK_ROOT "/"
801 #define ZFS_RDISK_ROOT "/dev/rdsk"
802 #define ZFS_RDISK_ROOTD ZFS_RDISK_ROOT "/"
804 /* general zvol path */
805 #define ZVOL_DIR "/dev/zvol"
807 #define ZVOL_PSEUDO_DEV "/devices/pseudo/zfs@0:"
808 /* for dump and swap */
809 #define ZVOL_FULL_DEV_DIR ZVOL_DIR "/dsk/"
810 #define ZVOL_FULL_RDEV_DIR ZVOL_DIR "/rdsk/"
812 #define ZVOL_PROP_NAME "name"
813 #define ZVOL_DEFAULT_BLOCKSIZE 8192
816 * /dev/zfs ioctl numbers.
818 typedef enum zfs_ioc {
820 ZFS_IOC_POOL_CREATE = ZFS_IOC_FIRST,
821 ZFS_IOC_POOL_DESTROY,
824 ZFS_IOC_POOL_CONFIGS,
826 ZFS_IOC_POOL_TRYIMPORT,
829 ZFS_IOC_POOL_UPGRADE,
830 ZFS_IOC_POOL_GET_HISTORY,
833 ZFS_IOC_VDEV_SET_STATE,
836 ZFS_IOC_VDEV_SETPATH,
838 ZFS_IOC_OBJSET_STATS,
839 ZFS_IOC_OBJSET_ZPLPROPS,
840 ZFS_IOC_DATASET_LIST_NEXT,
841 ZFS_IOC_SNAPSHOT_LIST_NEXT,
849 ZFS_IOC_INJECT_FAULT,
851 ZFS_IOC_INJECT_LIST_NEXT,
855 ZFS_IOC_DESTROY_SNAPS,
857 ZFS_IOC_DSOBJ_TO_DSNAME,
859 ZFS_IOC_POOL_SET_PROPS,
860 ZFS_IOC_POOL_GET_PROPS,
864 ZFS_IOC_INHERIT_PROP,
866 ZFS_IOC_USERSPACE_ONE,
867 ZFS_IOC_USERSPACE_MANY,
868 ZFS_IOC_USERSPACE_UPGRADE,
872 ZFS_IOC_OBJSET_RECVD_PROPS,
876 ZFS_IOC_TMP_SNAPSHOT,
877 ZFS_IOC_OBJ_TO_STATS,
881 ZFS_IOC_SPACE_WRITTEN,
883 ZFS_IOC_SEND_PROGRESS,
890 ZFS_IOC_GET_BOOKMARKS,
891 ZFS_IOC_DESTROY_BOOKMARKS,
897 * Internal SPA load state. Used by FMA diagnosis engine.
900 SPA_LOAD_NONE, /* no load in progress */
901 SPA_LOAD_OPEN, /* normal open */
902 SPA_LOAD_IMPORT, /* import in progress */
903 SPA_LOAD_TRYIMPORT, /* tryimport in progress */
904 SPA_LOAD_RECOVER, /* recovery requested */
905 SPA_LOAD_ERROR, /* load failed */
906 SPA_LOAD_CREATE /* creation in progress */
910 * Bookmark name values.
912 #define ZPOOL_ERR_LIST "error list"
913 #define ZPOOL_ERR_DATASET "dataset"
914 #define ZPOOL_ERR_OBJECT "object"
916 #define HIS_MAX_RECORD_LEN (MAXPATHLEN + MAXPATHLEN + 1)
919 * The following are names used in the nvlist describing
920 * the pool's history log.
922 #define ZPOOL_HIST_RECORD "history record"
923 #define ZPOOL_HIST_TIME "history time"
924 #define ZPOOL_HIST_CMD "history command"
925 #define ZPOOL_HIST_WHO "history who"
926 #define ZPOOL_HIST_ZONE "history zone"
927 #define ZPOOL_HIST_HOST "history hostname"
928 #define ZPOOL_HIST_TXG "history txg"
929 #define ZPOOL_HIST_INT_EVENT "history internal event"
930 #define ZPOOL_HIST_INT_STR "history internal str"
931 #define ZPOOL_HIST_INT_NAME "internal_name"
932 #define ZPOOL_HIST_IOCTL "ioctl"
933 #define ZPOOL_HIST_INPUT_NVL "in_nvl"
934 #define ZPOOL_HIST_OUTPUT_NVL "out_nvl"
935 #define ZPOOL_HIST_DSNAME "dsname"
936 #define ZPOOL_HIST_DSID "dsid"
939 * Flags for ZFS_IOC_VDEV_SET_STATE
941 #define ZFS_ONLINE_CHECKREMOVE 0x1
942 #define ZFS_ONLINE_UNSPARE 0x2
943 #define ZFS_ONLINE_FORCEFAULT 0x4
944 #define ZFS_ONLINE_EXPAND 0x8
945 #define ZFS_OFFLINE_TEMPORARY 0x1
948 * Flags for ZFS_IOC_POOL_IMPORT
950 #define ZFS_IMPORT_NORMAL 0x0
951 #define ZFS_IMPORT_VERBATIM 0x1
952 #define ZFS_IMPORT_ANY_HOST 0x2
953 #define ZFS_IMPORT_MISSING_LOG 0x4
954 #define ZFS_IMPORT_ONLY 0x8
955 #define ZFS_IMPORT_TEMP_NAME 0x20
958 * Sysevent payload members. ZFS will generate the following sysevents with the
961 * ESC_ZFS_RESILVER_START
962 * ESC_ZFS_RESILVER_END
963 * ESC_ZFS_POOL_DESTROY
964 * ESC_ZFS_POOL_REGUID
966 * ZFS_EV_POOL_NAME DATA_TYPE_STRING
967 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64
969 * ESC_ZFS_VDEV_REMOVE
973 * ZFS_EV_POOL_NAME DATA_TYPE_STRING
974 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64
975 * ZFS_EV_VDEV_PATH DATA_TYPE_STRING (optional)
976 * ZFS_EV_VDEV_GUID DATA_TYPE_UINT64
978 #define ZFS_EV_POOL_NAME "pool_name"
979 #define ZFS_EV_POOL_GUID "pool_guid"
980 #define ZFS_EV_VDEV_PATH "vdev_path"
981 #define ZFS_EV_VDEV_GUID "vdev_guid"
987 #endif /* _SYS_FS_ZFS_H */