xref: /titanic_44/usr/src/uts/common/sys/fs/zfs.h (revision f6acbf7c6543dc0aab58cae1df419f0147c46d77)
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  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_SYS_FS_ZFS_H
27 #define	_SYS_FS_ZFS_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #ifdef	__cplusplus
32 extern "C" {
33 #endif
34 
35 /*
36  * Types and constants shared between userland and the kernel.
37  */
38 
39 /*
40  * Each dataset can be one of the following types.  These constants can be
41  * combined into masks that can be passed to various functions.
42  */
43 typedef enum {
44 	ZFS_TYPE_FILESYSTEM	= 0x1,
45 	ZFS_TYPE_SNAPSHOT	= 0x2,
46 	ZFS_TYPE_VOLUME		= 0x4,
47 	ZFS_TYPE_POOL		= 0x8
48 } zfs_type_t;
49 
50 #define	ZFS_TYPE_DATASET	\
51 	(ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME | ZFS_TYPE_SNAPSHOT)
52 
53 /*
54  * Dataset properties are identified by these constants and must be added to
55  * the end of this list to ensure that external consumers are not affected
56  * by the change. If you make any changes to this list, be sure to update
57  * the property table in usr/src/common/zfs/zfs_prop.c.
58  */
59 typedef enum {
60 	ZFS_PROP_TYPE,
61 	ZFS_PROP_CREATION,
62 	ZFS_PROP_USED,
63 	ZFS_PROP_AVAILABLE,
64 	ZFS_PROP_REFERENCED,
65 	ZFS_PROP_COMPRESSRATIO,
66 	ZFS_PROP_MOUNTED,
67 	ZFS_PROP_ORIGIN,
68 	ZFS_PROP_QUOTA,
69 	ZFS_PROP_RESERVATION,
70 	ZFS_PROP_VOLSIZE,
71 	ZFS_PROP_VOLBLOCKSIZE,
72 	ZFS_PROP_RECORDSIZE,
73 	ZFS_PROP_MOUNTPOINT,
74 	ZFS_PROP_SHARENFS,
75 	ZFS_PROP_CHECKSUM,
76 	ZFS_PROP_COMPRESSION,
77 	ZFS_PROP_ATIME,
78 	ZFS_PROP_DEVICES,
79 	ZFS_PROP_EXEC,
80 	ZFS_PROP_SETUID,
81 	ZFS_PROP_READONLY,
82 	ZFS_PROP_ZONED,
83 	ZFS_PROP_SNAPDIR,
84 	ZFS_PROP_ACLMODE,
85 	ZFS_PROP_ACLINHERIT,
86 	ZFS_PROP_CREATETXG,		/* not exposed to the user */
87 	ZFS_PROP_NAME,			/* not exposed to the user */
88 	ZFS_PROP_CANMOUNT,
89 	ZFS_PROP_SHAREISCSI,
90 	ZFS_PROP_ISCSIOPTIONS,		/* not exposed to the user */
91 	ZFS_PROP_XATTR,
92 	ZFS_PROP_NUMCLONES,		/* not exposed to the user */
93 	ZFS_PROP_COPIES,
94 	ZFS_PROP_VERSION,
95 	ZFS_PROP_UTF8ONLY,
96 	ZFS_PROP_NORMALIZE,
97 	ZFS_PROP_CASE,
98 	ZFS_PROP_VSCAN,
99 	ZFS_PROP_NBMAND,
100 	ZFS_PROP_SHARESMB,
101 	ZFS_PROP_REFQUOTA,
102 	ZFS_PROP_REFRESERVATION,
103 	ZFS_NUM_PROPS
104 } zfs_prop_t;
105 
106 /*
107  * Pool properties are identified by these constants and must be added to the
108  * end of this list to ensure that external conumsers are not affected
109  * by the change. If you make any changes to this list, be sure to update
110  * the property table in usr/src/common/zfs/zpool_prop.c.
111  */
112 typedef enum {
113 	ZPOOL_PROP_NAME,
114 	ZPOOL_PROP_SIZE,
115 	ZPOOL_PROP_USED,
116 	ZPOOL_PROP_AVAILABLE,
117 	ZPOOL_PROP_CAPACITY,
118 	ZPOOL_PROP_ALTROOT,
119 	ZPOOL_PROP_HEALTH,
120 	ZPOOL_PROP_GUID,
121 	ZPOOL_PROP_VERSION,
122 	ZPOOL_PROP_BOOTFS,
123 	ZPOOL_PROP_DELEGATION,
124 	ZPOOL_PROP_AUTOREPLACE,
125 	ZPOOL_PROP_CACHEFILE,
126 	ZPOOL_PROP_FAILUREMODE,
127 	ZPOOL_NUM_PROPS
128 } zpool_prop_t;
129 
130 #define	ZPROP_CONT		-2
131 #define	ZPROP_INVAL		-1
132 
133 #define	ZPROP_VALUE		"value"
134 #define	ZPROP_SOURCE		"source"
135 
136 typedef enum {
137 	ZPROP_SRC_NONE = 0x1,
138 	ZPROP_SRC_DEFAULT = 0x2,
139 	ZPROP_SRC_TEMPORARY = 0x4,
140 	ZPROP_SRC_LOCAL = 0x8,
141 	ZPROP_SRC_INHERITED = 0x10
142 } zprop_source_t;
143 
144 #define	ZPROP_SRC_ALL	0x1f
145 
146 typedef int (*zprop_func)(int, void *);
147 
148 /*
149  * Dataset property functions shared between libzfs and kernel.
150  */
151 const char *zfs_prop_default_string(zfs_prop_t);
152 uint64_t zfs_prop_default_numeric(zfs_prop_t);
153 boolean_t zfs_prop_readonly(zfs_prop_t);
154 boolean_t zfs_prop_inheritable(zfs_prop_t);
155 boolean_t zfs_prop_setonce(zfs_prop_t);
156 const char *zfs_prop_to_name(zfs_prop_t);
157 zfs_prop_t zfs_name_to_prop(const char *);
158 boolean_t zfs_prop_user(const char *);
159 int zfs_prop_index_to_string(zfs_prop_t, uint64_t, const char **);
160 int zfs_prop_string_to_index(zfs_prop_t, const char *, uint64_t *);
161 int zfs_prop_valid_for_type(int, zfs_type_t);
162 
163 /*
164  * Pool property functions shared between libzfs and kernel.
165  */
166 zpool_prop_t zpool_name_to_prop(const char *);
167 const char *zpool_prop_to_name(zpool_prop_t);
168 const char *zpool_prop_default_string(zpool_prop_t);
169 uint64_t zpool_prop_default_numeric(zpool_prop_t);
170 boolean_t zpool_prop_readonly(zpool_prop_t);
171 int zpool_prop_index_to_string(zpool_prop_t, uint64_t, const char **);
172 int zpool_prop_string_to_index(zpool_prop_t, const char *, uint64_t *);
173 
174 /*
175  * Definitions for the Delegation.
176  */
177 typedef enum {
178 	ZFS_DELEG_WHO_UNKNOWN = 0,
179 	ZFS_DELEG_USER = 'u',
180 	ZFS_DELEG_USER_SETS = 'U',
181 	ZFS_DELEG_GROUP = 'g',
182 	ZFS_DELEG_GROUP_SETS = 'G',
183 	ZFS_DELEG_EVERYONE = 'e',
184 	ZFS_DELEG_EVERYONE_SETS = 'E',
185 	ZFS_DELEG_CREATE = 'c',
186 	ZFS_DELEG_CREATE_SETS = 'C',
187 	ZFS_DELEG_NAMED_SET = 's',
188 	ZFS_DELEG_NAMED_SET_SETS = 'S'
189 } zfs_deleg_who_type_t;
190 
191 typedef enum {
192 	ZFS_DELEG_NONE = 0,
193 	ZFS_DELEG_PERM_LOCAL = 1,
194 	ZFS_DELEG_PERM_DESCENDENT = 2,
195 	ZFS_DELEG_PERM_LOCALDESCENDENT = 3,
196 	ZFS_DELEG_PERM_CREATE = 4
197 } zfs_deleg_inherit_t;
198 
199 #define	ZFS_DELEG_PERM_UID	"uid"
200 #define	ZFS_DELEG_PERM_GID	"gid"
201 #define	ZFS_DELEG_PERM_GROUPS	"groups"
202 
203 typedef enum zfs_share_op {
204 	ZFS_SHARE_NFS = 0,
205 	ZFS_UNSHARE_NFS = 1,
206 	ZFS_SHARE_SMB = 2,
207 	ZFS_UNSHARE_SMB = 3
208 } zfs_share_op_t;
209 
210 /*
211  * On-disk version number.
212  */
213 #define	SPA_VERSION_1			1ULL
214 #define	SPA_VERSION_2			2ULL
215 #define	SPA_VERSION_3			3ULL
216 #define	SPA_VERSION_4			4ULL
217 #define	SPA_VERSION_5			5ULL
218 #define	SPA_VERSION_6			6ULL
219 #define	SPA_VERSION_7			7ULL
220 #define	SPA_VERSION_8			8ULL
221 #define	SPA_VERSION_9			9ULL
222 #define	SPA_VERSION_10			10ULL
223 
224 /*
225  * When bumping up SPA_VERSION, make sure GRUB ZFS understand the on-disk
226  * format change. Go to usr/src/grub/grub-0.95/stage2/{zfs-include/, fsys_zfs*},
227  * and do the appropriate changes.
228  */
229 #define	SPA_VERSION			SPA_VERSION_10
230 #define	SPA_VERSION_STRING		"10"
231 
232 /*
233  * Symbolic names for the changes that caused a SPA_VERSION switch.
234  * Used in the code when checking for presence or absence of a feature.
235  * Feel free to define multiple symbolic names for each version if there
236  * were multiple changes to on-disk structures during that version.
237  *
238  * NOTE: When checking the current SPA_VERSION in your code, be sure
239  *       to use spa_version() since it reports the version of the
240  *       last synced uberblock.  Checking the in-flight version can
241  *       be dangerous in some cases.
242  */
243 #define	SPA_VERSION_INITIAL		SPA_VERSION_1
244 #define	SPA_VERSION_DITTO_BLOCKS	SPA_VERSION_2
245 #define	SPA_VERSION_SPARES		SPA_VERSION_3
246 #define	SPA_VERSION_RAID6		SPA_VERSION_3
247 #define	SPA_VERSION_BPLIST_ACCOUNT	SPA_VERSION_3
248 #define	SPA_VERSION_RAIDZ_DEFLATE	SPA_VERSION_3
249 #define	SPA_VERSION_DNODE_BYTES		SPA_VERSION_3
250 #define	SPA_VERSION_ZPOOL_HISTORY	SPA_VERSION_4
251 #define	SPA_VERSION_GZIP_COMPRESSION	SPA_VERSION_5
252 #define	SPA_VERSION_BOOTFS		SPA_VERSION_6
253 #define	SPA_VERSION_SLOGS		SPA_VERSION_7
254 #define	SPA_VERSION_DELEGATED_PERMS	SPA_VERSION_8
255 #define	SPA_VERSION_FUID		SPA_VERSION_9
256 #define	SPA_VERSION_REFRESERVATION	SPA_VERSION_9
257 #define	SPA_VERSION_REFQUOTA		SPA_VERSION_9
258 #define	SPA_VERSION_UNIQUE_ACCURATE	SPA_VERSION_9
259 #define	SPA_VERSION_L2CACHE		SPA_VERSION_10
260 
261 /*
262  * ZPL version - rev'd whenever an incompatible on-disk format change
263  * occurs.  This is independent of SPA/DMU/ZAP versioning.  You must
264  * also update the version_table[] and help message in zfs_prop.c.
265  *
266  * When changing, be sure to teach GRUB how to read the new format!
267  * See usr/src/grub/grub-0.95/stage2/{zfs-include/,fsys_zfs*}
268  */
269 #define	ZPL_VERSION_1			1ULL
270 #define	ZPL_VERSION_2			2ULL
271 #define	ZPL_VERSION_3			3ULL
272 #define	ZPL_VERSION			ZPL_VERSION_3
273 #define	ZPL_VERSION_STRING		"3"
274 
275 #define	ZPL_VERSION_INITIAL		ZPL_VERSION_1
276 #define	ZPL_VERSION_DIRENT_TYPE		ZPL_VERSION_2
277 #define	ZPL_VERSION_FUID		ZPL_VERSION_3
278 #define	ZPL_VERSION_NORMALIZATION	ZPL_VERSION_3
279 #define	ZPL_VERSION_SYSATTR		ZPL_VERSION_3
280 
281 /*
282  * The following are configuration names used in the nvlist describing a pool's
283  * configuration.
284  */
285 #define	ZPOOL_CONFIG_VERSION		"version"
286 #define	ZPOOL_CONFIG_POOL_NAME		"name"
287 #define	ZPOOL_CONFIG_POOL_STATE		"state"
288 #define	ZPOOL_CONFIG_POOL_TXG		"txg"
289 #define	ZPOOL_CONFIG_POOL_GUID		"pool_guid"
290 #define	ZPOOL_CONFIG_CREATE_TXG		"create_txg"
291 #define	ZPOOL_CONFIG_TOP_GUID		"top_guid"
292 #define	ZPOOL_CONFIG_VDEV_TREE		"vdev_tree"
293 #define	ZPOOL_CONFIG_TYPE		"type"
294 #define	ZPOOL_CONFIG_CHILDREN		"children"
295 #define	ZPOOL_CONFIG_ID			"id"
296 #define	ZPOOL_CONFIG_GUID		"guid"
297 #define	ZPOOL_CONFIG_PATH		"path"
298 #define	ZPOOL_CONFIG_DEVID		"devid"
299 #define	ZPOOL_CONFIG_METASLAB_ARRAY	"metaslab_array"
300 #define	ZPOOL_CONFIG_METASLAB_SHIFT	"metaslab_shift"
301 #define	ZPOOL_CONFIG_ASHIFT		"ashift"
302 #define	ZPOOL_CONFIG_ASIZE		"asize"
303 #define	ZPOOL_CONFIG_DTL		"DTL"
304 #define	ZPOOL_CONFIG_STATS		"stats"
305 #define	ZPOOL_CONFIG_WHOLE_DISK		"whole_disk"
306 #define	ZPOOL_CONFIG_ERRCOUNT		"error_count"
307 #define	ZPOOL_CONFIG_NOT_PRESENT	"not_present"
308 #define	ZPOOL_CONFIG_SPARES		"spares"
309 #define	ZPOOL_CONFIG_IS_SPARE		"is_spare"
310 #define	ZPOOL_CONFIG_NPARITY		"nparity"
311 #define	ZPOOL_CONFIG_HOSTID		"hostid"
312 #define	ZPOOL_CONFIG_HOSTNAME		"hostname"
313 #define	ZPOOL_CONFIG_TIMESTAMP		"timestamp" /* not stored on disk */
314 #define	ZPOOL_CONFIG_UNSPARE		"unspare"
315 #define	ZPOOL_CONFIG_PHYS_PATH		"phys_path"
316 #define	ZPOOL_CONFIG_IS_LOG		"is_log"
317 #define	ZPOOL_CONFIG_L2CACHE		"l2cache"
318 /*
319  * The persistent vdev state is stored as separate values rather than a single
320  * 'vdev_state' entry.  This is because a device can be in multiple states, such
321  * as offline and degraded.
322  */
323 #define	ZPOOL_CONFIG_OFFLINE		"offline"
324 #define	ZPOOL_CONFIG_FAULTED		"faulted"
325 #define	ZPOOL_CONFIG_DEGRADED		"degraded"
326 #define	ZPOOL_CONFIG_REMOVED		"removed"
327 
328 #define	VDEV_TYPE_ROOT			"root"
329 #define	VDEV_TYPE_MIRROR		"mirror"
330 #define	VDEV_TYPE_REPLACING		"replacing"
331 #define	VDEV_TYPE_RAIDZ			"raidz"
332 #define	VDEV_TYPE_DISK			"disk"
333 #define	VDEV_TYPE_FILE			"file"
334 #define	VDEV_TYPE_MISSING		"missing"
335 #define	VDEV_TYPE_SPARE			"spare"
336 #define	VDEV_TYPE_LOG			"log"
337 #define	VDEV_TYPE_L2CACHE		"l2cache"
338 
339 /*
340  * This is needed in userland to report the minimum necessary device size.
341  */
342 #define	SPA_MINDEVSIZE		(64ULL << 20)
343 
344 /*
345  * The location of the pool configuration repository, shared between kernel and
346  * userland.
347  */
348 #define	ZPOOL_CACHE_DIR		"/etc/zfs"
349 #define	ZPOOL_CACHE_FILE	"zpool.cache"
350 #define	ZPOOL_CACHE_TMP		".zpool.cache"
351 
352 #define	ZPOOL_CACHE		ZPOOL_CACHE_DIR "/" ZPOOL_CACHE_FILE
353 
354 /*
355  * vdev states are ordered from least to most healthy.
356  * A vdev that's CANT_OPEN or below is considered unusable.
357  */
358 typedef enum vdev_state {
359 	VDEV_STATE_UNKNOWN = 0,	/* Uninitialized vdev			*/
360 	VDEV_STATE_CLOSED,	/* Not currently open			*/
361 	VDEV_STATE_OFFLINE,	/* Not allowed to open			*/
362 	VDEV_STATE_REMOVED,	/* Explicitly removed from system	*/
363 	VDEV_STATE_CANT_OPEN,	/* Tried to open, but failed		*/
364 	VDEV_STATE_FAULTED,	/* External request to fault device	*/
365 	VDEV_STATE_DEGRADED,	/* Replicated vdev with unhealthy kids	*/
366 	VDEV_STATE_HEALTHY	/* Presumed good			*/
367 } vdev_state_t;
368 
369 #define	VDEV_STATE_ONLINE	VDEV_STATE_HEALTHY
370 
371 /*
372  * vdev aux states.  When a vdev is in the CANT_OPEN state, the aux field
373  * of the vdev stats structure uses these constants to distinguish why.
374  */
375 typedef enum vdev_aux {
376 	VDEV_AUX_NONE,		/* no error				*/
377 	VDEV_AUX_OPEN_FAILED,	/* ldi_open_*() or vn_open() failed	*/
378 	VDEV_AUX_CORRUPT_DATA,	/* bad label or disk contents		*/
379 	VDEV_AUX_NO_REPLICAS,	/* insufficient number of replicas	*/
380 	VDEV_AUX_BAD_GUID_SUM,	/* vdev guid sum doesn't match		*/
381 	VDEV_AUX_TOO_SMALL,	/* vdev size is too small		*/
382 	VDEV_AUX_BAD_LABEL,	/* the label is OK but invalid		*/
383 	VDEV_AUX_VERSION_NEWER,	/* on-disk version is too new		*/
384 	VDEV_AUX_VERSION_OLDER,	/* on-disk version is too old		*/
385 	VDEV_AUX_SPARED,	/* hot spare used in another pool	*/
386 	VDEV_AUX_ERR_EXCEEDED	/* too many errors			*/
387 } vdev_aux_t;
388 
389 /*
390  * pool state.  The following states are written to disk as part of the normal
391  * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE.  The remaining
392  * states are software abstractions used at various levels to communicate
393  * pool state.
394  */
395 typedef enum pool_state {
396 	POOL_STATE_ACTIVE = 0,		/* In active use		*/
397 	POOL_STATE_EXPORTED,		/* Explicitly exported		*/
398 	POOL_STATE_DESTROYED,		/* Explicitly destroyed		*/
399 	POOL_STATE_SPARE,		/* Reserved for hot spare use	*/
400 	POOL_STATE_L2CACHE,		/* Level 2 ARC device		*/
401 	POOL_STATE_UNINITIALIZED,	/* Internal spa_t state		*/
402 	POOL_STATE_IO_FAILURE,		/* Internal pool state		*/
403 	POOL_STATE_UNAVAIL,		/* Internal libzfs state	*/
404 	POOL_STATE_POTENTIALLY_ACTIVE	/* Internal libzfs state	*/
405 } pool_state_t;
406 
407 /*
408  * Scrub types.
409  */
410 typedef enum pool_scrub_type {
411 	POOL_SCRUB_NONE,
412 	POOL_SCRUB_RESILVER,
413 	POOL_SCRUB_EVERYTHING,
414 	POOL_SCRUB_TYPES
415 } pool_scrub_type_t;
416 
417 /*
418  * ZIO types.  Needed to interpret vdev statistics below.
419  */
420 typedef enum zio_type {
421 	ZIO_TYPE_NULL = 0,
422 	ZIO_TYPE_READ,
423 	ZIO_TYPE_WRITE,
424 	ZIO_TYPE_FREE,
425 	ZIO_TYPE_CLAIM,
426 	ZIO_TYPE_IOCTL,
427 	ZIO_TYPES
428 } zio_type_t;
429 
430 /*
431  * Vdev statistics.  Note: all fields should be 64-bit because this
432  * is passed between kernel and userland as an nvlist uint64 array.
433  */
434 typedef struct vdev_stat {
435 	hrtime_t	vs_timestamp;		/* time since vdev load	*/
436 	uint64_t	vs_state;		/* vdev state		*/
437 	uint64_t	vs_aux;			/* see vdev_aux_t	*/
438 	uint64_t	vs_alloc;		/* space allocated	*/
439 	uint64_t	vs_space;		/* total capacity	*/
440 	uint64_t	vs_dspace;		/* deflated capacity	*/
441 	uint64_t	vs_rsize;		/* replaceable dev size */
442 	uint64_t	vs_ops[ZIO_TYPES];	/* operation count	*/
443 	uint64_t	vs_bytes[ZIO_TYPES];	/* bytes read/written	*/
444 	uint64_t	vs_read_errors;		/* read errors		*/
445 	uint64_t	vs_write_errors;	/* write errors		*/
446 	uint64_t	vs_checksum_errors;	/* checksum errors	*/
447 	uint64_t	vs_self_healed;		/* self-healed bytes	*/
448 	uint64_t	vs_scrub_type;		/* pool_scrub_type_t	*/
449 	uint64_t	vs_scrub_complete;	/* completed?		*/
450 	uint64_t	vs_scrub_examined;	/* bytes examined; top	*/
451 	uint64_t	vs_scrub_repaired;	/* bytes repaired; leaf	*/
452 	uint64_t	vs_scrub_errors;	/* errors during scrub	*/
453 	uint64_t	vs_scrub_start;		/* UTC scrub start time	*/
454 	uint64_t	vs_scrub_end;		/* UTC scrub end time	*/
455 } vdev_stat_t;
456 
457 #define	ZFS_DRIVER	"zfs"
458 #define	ZFS_DEV		"/dev/zfs"
459 
460 /*
461  * zvol paths.  Irritatingly, the devfsadm interfaces want all these
462  * paths without the /dev prefix, but for some things, we want the
463  * /dev prefix.  Below are the names without /dev.
464  */
465 #define	ZVOL_DEV_DIR	"zvol/dsk"
466 #define	ZVOL_RDEV_DIR	"zvol/rdsk"
467 
468 /*
469  * And here are the things we need with /dev, etc. in front of them.
470  */
471 #define	ZVOL_PSEUDO_DEV		"/devices/pseudo/zvol@0:"
472 #define	ZVOL_FULL_DEV_DIR	"/dev/" ZVOL_DEV_DIR
473 
474 #define	ZVOL_PROP_NAME		"name"
475 
476 /*
477  * /dev/zfs ioctl numbers.
478  */
479 #define	ZFS_IOC		('Z' << 8)
480 
481 typedef enum zfs_ioc {
482 	ZFS_IOC_POOL_CREATE = ZFS_IOC,
483 	ZFS_IOC_POOL_DESTROY,
484 	ZFS_IOC_POOL_IMPORT,
485 	ZFS_IOC_POOL_EXPORT,
486 	ZFS_IOC_POOL_CONFIGS,
487 	ZFS_IOC_POOL_STATS,
488 	ZFS_IOC_POOL_TRYIMPORT,
489 	ZFS_IOC_POOL_SCRUB,
490 	ZFS_IOC_POOL_FREEZE,
491 	ZFS_IOC_POOL_UPGRADE,
492 	ZFS_IOC_POOL_GET_HISTORY,
493 	ZFS_IOC_VDEV_ADD,
494 	ZFS_IOC_VDEV_REMOVE,
495 	ZFS_IOC_VDEV_SET_STATE,
496 	ZFS_IOC_VDEV_ATTACH,
497 	ZFS_IOC_VDEV_DETACH,
498 	ZFS_IOC_VDEV_SETPATH,
499 	ZFS_IOC_OBJSET_STATS,
500 	ZFS_IOC_OBJSET_ZPLPROPS,
501 	ZFS_IOC_DATASET_LIST_NEXT,
502 	ZFS_IOC_SNAPSHOT_LIST_NEXT,
503 	ZFS_IOC_SET_PROP,
504 	ZFS_IOC_CREATE_MINOR,
505 	ZFS_IOC_REMOVE_MINOR,
506 	ZFS_IOC_CREATE,
507 	ZFS_IOC_DESTROY,
508 	ZFS_IOC_ROLLBACK,
509 	ZFS_IOC_RENAME,
510 	ZFS_IOC_RECV,
511 	ZFS_IOC_SEND,
512 	ZFS_IOC_INJECT_FAULT,
513 	ZFS_IOC_CLEAR_FAULT,
514 	ZFS_IOC_INJECT_LIST_NEXT,
515 	ZFS_IOC_ERROR_LOG,
516 	ZFS_IOC_CLEAR,
517 	ZFS_IOC_PROMOTE,
518 	ZFS_IOC_DESTROY_SNAPS,
519 	ZFS_IOC_SNAPSHOT,
520 	ZFS_IOC_DSOBJ_TO_DSNAME,
521 	ZFS_IOC_OBJ_TO_PATH,
522 	ZFS_IOC_POOL_SET_PROPS,
523 	ZFS_IOC_POOL_GET_PROPS,
524 	ZFS_IOC_SET_FSACL,
525 	ZFS_IOC_GET_FSACL,
526 	ZFS_IOC_ISCSI_PERM_CHECK,
527 	ZFS_IOC_SHARE,
528 	ZFS_IOC_INHERIT_PROP
529 } zfs_ioc_t;
530 
531 /*
532  * Internal SPA load state.  Used by FMA diagnosis engine.
533  */
534 typedef enum {
535 	SPA_LOAD_NONE,		/* no load in progress */
536 	SPA_LOAD_OPEN,		/* normal open */
537 	SPA_LOAD_IMPORT,	/* import in progress */
538 	SPA_LOAD_TRYIMPORT	/* tryimport in progress */
539 } spa_load_state_t;
540 
541 /*
542  * Bookmark name values.
543  */
544 #define	ZPOOL_ERR_LIST		"error list"
545 #define	ZPOOL_ERR_DATASET	"dataset"
546 #define	ZPOOL_ERR_OBJECT	"object"
547 
548 #define	HIS_MAX_RECORD_LEN	(MAXPATHLEN + MAXPATHLEN + 1)
549 
550 /*
551  * The following are names used in the nvlist describing
552  * the pool's history log.
553  */
554 #define	ZPOOL_HIST_RECORD	"history record"
555 #define	ZPOOL_HIST_TIME		"history time"
556 #define	ZPOOL_HIST_CMD		"history command"
557 #define	ZPOOL_HIST_WHO		"history who"
558 #define	ZPOOL_HIST_ZONE		"history zone"
559 #define	ZPOOL_HIST_HOST		"history hostname"
560 #define	ZPOOL_HIST_TXG		"history txg"
561 #define	ZPOOL_HIST_INT_EVENT	"history internal event"
562 #define	ZPOOL_HIST_INT_STR	"history internal str"
563 
564 /*
565  * Flags for ZFS_IOC_VDEV_SET_STATE
566  */
567 #define	ZFS_ONLINE_CHECKREMOVE	0x1
568 #define	ZFS_ONLINE_UNSPARE	0x2
569 #define	ZFS_ONLINE_FORCEFAULT	0x4
570 #define	ZFS_OFFLINE_TEMPORARY	0x1
571 
572 /*
573  * Sysevent payload members.  ZFS will generate the following sysevents with the
574  * given payloads:
575  *
576  *	ESC_ZFS_RESILVER_START
577  *	ESC_ZFS_RESILVER_END
578  *	ESC_ZFS_POOL_DESTROY
579  *
580  *		ZFS_EV_POOL_NAME	DATA_TYPE_STRING
581  *		ZFS_EV_POOL_GUID	DATA_TYPE_UINT64
582  *
583  *	ESC_ZFS_VDEV_REMOVE
584  *	ESC_ZFS_VDEV_CLEAR
585  *	ESC_ZFS_VDEV_CHECK
586  *
587  *		ZFS_EV_POOL_NAME	DATA_TYPE_STRING
588  *		ZFS_EV_POOL_GUID	DATA_TYPE_UINT64
589  *		ZFS_EV_VDEV_PATH	DATA_TYPE_STRING	(optional)
590  *		ZFS_EV_VDEV_GUID	DATA_TYPE_UINT64
591  */
592 #define	ZFS_EV_POOL_NAME	"pool_name"
593 #define	ZFS_EV_POOL_GUID	"pool_guid"
594 #define	ZFS_EV_VDEV_PATH	"vdev_path"
595 #define	ZFS_EV_VDEV_GUID	"vdev_guid"
596 
597 typedef enum history_internal_events {
598 	LOG_NO_EVENT = 0,
599 	LOG_POOL_CREATE,
600 	LOG_POOL_VDEV_ADD,
601 	LOG_POOL_REMOVE,
602 	LOG_POOL_DESTROY,
603 	LOG_POOL_EXPORT,
604 	LOG_POOL_IMPORT,
605 	LOG_POOL_VDEV_ATTACH,
606 	LOG_POOL_VDEV_REPLACE,
607 	LOG_POOL_VDEV_DETACH,
608 	LOG_POOL_VDEV_ONLINE,
609 	LOG_POOL_VDEV_OFFLINE,
610 	LOG_POOL_UPGRADE,
611 	LOG_POOL_CLEAR,
612 	LOG_POOL_SCRUB,
613 	LOG_POOL_PROPSET,
614 	LOG_DS_CREATE,
615 	LOG_DS_CLONE,
616 	LOG_DS_DESTROY,
617 	LOG_DS_DESTROY_BEGIN,
618 	LOG_DS_INHERIT,
619 	LOG_DS_PROPSET,
620 	LOG_DS_QUOTA,
621 	LOG_DS_PERM_UPDATE,
622 	LOG_DS_PERM_REMOVE,
623 	LOG_DS_PERM_WHO_REMOVE,
624 	LOG_DS_PROMOTE,
625 	LOG_DS_RECEIVE,
626 	LOG_DS_RENAME,
627 	LOG_DS_RESERVATION,
628 	LOG_DS_REPLAY_INC_SYNC,
629 	LOG_DS_REPLAY_FULL_SYNC,
630 	LOG_DS_ROLLBACK,
631 	LOG_DS_SNAPSHOT,
632 	LOG_DS_UPGRADE,
633 	LOG_DS_REFQUOTA,
634 	LOG_DS_REFRESERV,
635 	LOG_END
636 } history_internal_events_t;
637 
638 #ifdef	__cplusplus
639 }
640 #endif
641 
642 #endif	/* _SYS_FS_ZFS_H */
643