[mirror_zfs-debian.git] / include / sys / zfs_ioctl.h

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef	_SYS_ZFS_IOCTL_H
#define	_SYS_ZFS_IOCTL_H

#include <sys/cred.h>
#include <sys/dmu.h>
#include <sys/zio.h>
#include <sys/dsl_deleg.h>
#include <sys/spa.h>
#include <sys/zfs_stat.h>

#ifdef _KERNEL
#include <sys/nvpair.h>
#endif	/* _KERNEL */

#ifdef	__cplusplus
extern "C" {
#endif

/*
 * Property values for snapdir
 */
#define	ZFS_SNAPDIR_HIDDEN		0
#define	ZFS_SNAPDIR_VISIBLE		1

/*
 * Property values for snapdev
 */
#define	ZFS_SNAPDEV_HIDDEN		0
#define	ZFS_SNAPDEV_VISIBLE		1

/*
 * Field manipulation macros for the drr_versioninfo field of the
 * send stream header.
 */

/*
 * Header types for zfs send streams.
 */
typedef enum drr_headertype {
	DMU_SUBSTREAM = 0x1,
	DMU_COMPOUNDSTREAM = 0x2
} drr_headertype_t;

#define	DMU_GET_STREAM_HDRTYPE(vi)	BF64_GET((vi), 0, 2)
#define	DMU_SET_STREAM_HDRTYPE(vi, x)	BF64_SET((vi), 0, 2, x)

#define	DMU_GET_FEATUREFLAGS(vi)	BF64_GET((vi), 2, 30)
#define	DMU_SET_FEATUREFLAGS(vi, x)	BF64_SET((vi), 2, 30, x)

/*
 * Feature flags for zfs send streams (flags in drr_versioninfo)
 */

#define	DMU_BACKUP_FEATURE_DEDUP	(0x1)
#define	DMU_BACKUP_FEATURE_DEDUPPROPS	(0x2)
#define	DMU_BACKUP_FEATURE_SA_SPILL	(0x4)

/*
 * Mask of all supported backup features
 */
#define	DMU_BACKUP_FEATURE_MASK	(DMU_BACKUP_FEATURE_DEDUP | \
		DMU_BACKUP_FEATURE_DEDUPPROPS | DMU_BACKUP_FEATURE_SA_SPILL)

/* Are all features in the given flag word currently supported? */
#define	DMU_STREAM_SUPPORTED(x)	(!((x) & ~DMU_BACKUP_FEATURE_MASK))

/*
 * The drr_versioninfo field of the dmu_replay_record has the
 * following layout:
 *
 *	64	56	48	40	32	24	16	8	0
 *	+-------+-------+-------+-------+-------+-------+-------+-------+
 *  	|		reserved	|        feature-flags	    |C|S|
 *	+-------+-------+-------+-------+-------+-------+-------+-------+
 *
 * The low order two bits indicate the header type: SUBSTREAM (0x1)
 * or COMPOUNDSTREAM (0x2).  Using two bits for this is historical:
 * this field used to be a version number, where the two version types
 * were 1 and 2.  Using two bits for this allows earlier versions of
 * the code to be able to recognize send streams that don't use any
 * of the features indicated by feature flags.
 */

#define	DMU_BACKUP_MAGIC 0x2F5bacbacULL

#define	DRR_FLAG_CLONE		(1<<0)
#define	DRR_FLAG_CI_DATA	(1<<1)

/*
 * flags in the drr_checksumflags field in the DRR_WRITE and
 * DRR_WRITE_BYREF blocks
 */
#define	DRR_CHECKSUM_DEDUP	(1<<0)

#define	DRR_IS_DEDUP_CAPABLE(flags)	((flags) & DRR_CHECKSUM_DEDUP)

/*
 * zfs ioctl command structure
 */
typedef struct dmu_replay_record {
	enum {
		DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS,
		DRR_WRITE, DRR_FREE, DRR_END, DRR_WRITE_BYREF,
		DRR_SPILL, DRR_NUMTYPES
	} drr_type;
	uint32_t drr_payloadlen;
	union {
		struct drr_begin {
			uint64_t drr_magic;
			uint64_t drr_versioninfo; /* was drr_version */
			uint64_t drr_creation_time;
			dmu_objset_type_t drr_type;
			uint32_t drr_flags;
			uint64_t drr_toguid;
			uint64_t drr_fromguid;
			char drr_toname[MAXNAMELEN];
		} drr_begin;
		struct drr_end {
			zio_cksum_t drr_checksum;
			uint64_t drr_toguid;
		} drr_end;
		struct drr_object {
			uint64_t drr_object;
			dmu_object_type_t drr_type;
			dmu_object_type_t drr_bonustype;
			uint32_t drr_blksz;
			uint32_t drr_bonuslen;
			uint8_t drr_checksumtype;
			uint8_t drr_compress;
			uint8_t drr_pad[6];
			uint64_t drr_toguid;
			/* bonus content follows */
		} drr_object;
		struct drr_freeobjects {
			uint64_t drr_firstobj;
			uint64_t drr_numobjs;
			uint64_t drr_toguid;
		} drr_freeobjects;
		struct drr_write {
			uint64_t drr_object;
			dmu_object_type_t drr_type;
			uint32_t drr_pad;
			uint64_t drr_offset;
			uint64_t drr_length;
			uint64_t drr_toguid;
			uint8_t drr_checksumtype;
			uint8_t drr_checksumflags;
			uint8_t drr_pad2[6];
			ddt_key_t drr_key; /* deduplication key */
			/* content follows */
		} drr_write;
		struct drr_free {
			uint64_t drr_object;
			uint64_t drr_offset;
			uint64_t drr_length;
			uint64_t drr_toguid;
		} drr_free;
		struct drr_write_byref {
			/* where to put the data */
			uint64_t drr_object;
			uint64_t drr_offset;
			uint64_t drr_length;
			uint64_t drr_toguid;
			/* where to find the prior copy of the data */
			uint64_t drr_refguid;
			uint64_t drr_refobject;
			uint64_t drr_refoffset;
			/* properties of the data */
			uint8_t drr_checksumtype;
			uint8_t drr_checksumflags;
			uint8_t drr_pad2[6];
			ddt_key_t drr_key; /* deduplication key */
		} drr_write_byref;
		struct drr_spill {
			uint64_t drr_object;
			uint64_t drr_length;
			uint64_t drr_toguid;
			uint64_t drr_pad[4]; /* needed for crypto */
			/* spill data follows */
		} drr_spill;
	} drr_u;
} dmu_replay_record_t;

/* diff record range types */
typedef enum diff_type {
	DDR_NONE = 0x1,
	DDR_INUSE = 0x2,
	DDR_FREE = 0x4
} diff_type_t;

/*
 * The diff reports back ranges of free or in-use objects.
 */
typedef struct dmu_diff_record {
	uint64_t ddr_type;
	uint64_t ddr_first;
	uint64_t ddr_last;
} dmu_diff_record_t;

typedef struct zinject_record {
	uint64_t	zi_objset;
	uint64_t	zi_object;
	uint64_t	zi_start;
	uint64_t	zi_end;
	uint64_t	zi_guid;
	uint32_t	zi_level;
	uint32_t	zi_error;
	uint64_t	zi_type;
	uint32_t	zi_freq;
	uint32_t	zi_failfast;
	char		zi_func[MAXNAMELEN];
	uint32_t	zi_iotype;
	int32_t		zi_duration;
	uint64_t	zi_timer;
	uint32_t	zi_cmd;
	uint32_t	zi_pad;
} zinject_record_t;

#define	ZINJECT_NULL		0x1
#define	ZINJECT_FLUSH_ARC	0x2
#define	ZINJECT_UNLOAD_SPA	0x4

#define	ZEVENT_NONBLOCK		0x1
#define	ZEVENT_SIZE		1024

typedef enum zinject_type {
	ZINJECT_UNINITIALIZED,
	ZINJECT_DATA_FAULT,
	ZINJECT_DEVICE_FAULT,
	ZINJECT_LABEL_FAULT,
	ZINJECT_IGNORED_WRITES,
	ZINJECT_PANIC,
	ZINJECT_DELAY_IO,
} zinject_type_t;

typedef struct zfs_share {
	uint64_t	z_exportdata;
	uint64_t	z_sharedata;
	uint64_t	z_sharetype;	/* 0 = share, 1 = unshare */
	uint64_t	z_sharemax;  /* max length of share string */
} zfs_share_t;

/*
 * ZFS file systems may behave the usual, POSIX-compliant way, where
 * name lookups are case-sensitive.  They may also be set up so that
 * all the name lookups are case-insensitive, or so that only some
 * lookups, the ones that set an FIGNORECASE flag, are case-insensitive.
 */
typedef enum zfs_case {
	ZFS_CASE_SENSITIVE,
	ZFS_CASE_INSENSITIVE,
	ZFS_CASE_MIXED
} zfs_case_t;

typedef struct zfs_cmd {
	char		zc_name[MAXPATHLEN];
	char		zc_value[MAXPATHLEN * 2];
	char		zc_string[MAXNAMELEN];
	char		zc_top_ds[MAXPATHLEN];
	uint64_t	zc_guid;
	uint64_t	zc_nvlist_conf;		/* really (char *) */
	uint64_t	zc_nvlist_conf_size;
	uint64_t	zc_nvlist_src;		/* really (char *) */
	uint64_t	zc_nvlist_src_size;
	uint64_t	zc_nvlist_dst;		/* really (char *) */
	uint64_t	zc_nvlist_dst_size;
	uint64_t	zc_cookie;
	uint64_t	zc_objset_type;
	uint64_t	zc_perm_action;
	uint64_t 	zc_history;		/* really (char *) */
	uint64_t 	zc_history_len;
	uint64_t	zc_history_offset;
	uint64_t	zc_obj;
	uint64_t	zc_iflags;		/* internal to zfs(7fs) */
	zfs_share_t	zc_share;
	dmu_objset_stats_t zc_objset_stats;
	struct drr_begin zc_begin_record;
	zinject_record_t zc_inject_record;
	boolean_t	zc_defer_destroy;
	boolean_t	zc_temphold;
	uint64_t	zc_action_handle;
	int		zc_cleanup_fd;
	uint8_t		zc_simple;
	uint8_t		zc_pad[3];		/* alignment */
	uint64_t	zc_sendobj;
	uint64_t	zc_fromobj;
	uint64_t	zc_createtxg;
	zfs_stat_t	zc_stat;
} zfs_cmd_t;

typedef struct zfs_useracct {
	char zu_domain[256];
	uid_t zu_rid;
	uint32_t zu_pad;
	uint64_t zu_space;
} zfs_useracct_t;

#define	ZFSDEV_MAX_MINOR	(1 << 16)
#define	ZFS_MIN_MINOR	(ZFSDEV_MAX_MINOR + 1)

#define	ZPOOL_EXPORT_AFTER_SPLIT 0x1

#ifdef _KERNEL

typedef struct zfs_creat {
	nvlist_t	*zct_zplprops;
	nvlist_t	*zct_props;
} zfs_creat_t;

extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
extern int zfs_secpolicy_rename_perms(const char *from,
    const char *to, cred_t *cr);
extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
extern int zfs_unmount_snap(const char *, void *);

enum zfsdev_state_type {
	ZST_ONEXIT,
	ZST_ZEVENT,
	ZST_ALL,
};

typedef struct zfsdev_state {
        list_node_t             zs_next;        /* next zfsdev_state_t link */
	struct file		*zs_file;	/* associated file struct */
	minor_t			zs_minor;	/* made up minor number */
	void			*zs_onexit;	/* onexit data */
	void			*zs_zevent;	/* zevent data */
} zfsdev_state_t;

extern void *zfsdev_get_state(minor_t minor, enum zfsdev_state_type which);
extern minor_t zfsdev_getminor(struct file *filp);
extern minor_t zfsdev_minor_alloc(void);

#endif	/* _KERNEL */

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_ZFS_IOCTL_H */
Commit	Line	Data
34dc7c2f BB	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	/*
572e2857	22	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
34dc7c2f BB	23	*/
	24
	25	#ifndef _SYS_ZFS_IOCTL_H
	26	#define _SYS_ZFS_IOCTL_H
	27
34dc7c2f BB	28	#include <sys/cred.h>
	29	#include <sys/dmu.h>
	30	#include <sys/zio.h>
	31	#include <sys/dsl_deleg.h>
428870ff	32	#include <sys/spa.h>
572e2857	33	#include <sys/zfs_stat.h>
34dc7c2f BB	34
	35	#ifdef _KERNEL
	36	#include <sys/nvpair.h>
	37	#endif /* _KERNEL */
	38
	39	#ifdef __cplusplus
	40	extern "C" {
	41	#endif
	42
	43	/*
	44	* Property values for snapdir
	45	*/
	46	#define ZFS_SNAPDIR_HIDDEN 0
	47	#define ZFS_SNAPDIR_VISIBLE 1
	48
0b4d1b58 ED	49	/*
	50	* Property values for snapdev
	51	*/
	52	#define ZFS_SNAPDEV_HIDDEN 0
	53	#define ZFS_SNAPDEV_VISIBLE 1
	54
428870ff BB	55	/*
	56	* Field manipulation macros for the drr_versioninfo field of the
	57	* send stream header.
	58	*/
	59
	60	/*
	61	* Header types for zfs send streams.
	62	*/
	63	typedef enum drr_headertype {
	64	DMU_SUBSTREAM = 0x1,
	65	DMU_COMPOUNDSTREAM = 0x2
	66	} drr_headertype_t;
	67
	68	#define DMU_GET_STREAM_HDRTYPE(vi) BF64_GET((vi), 0, 2)
	69	#define DMU_SET_STREAM_HDRTYPE(vi, x) BF64_SET((vi), 0, 2, x)
	70
	71	#define DMU_GET_FEATUREFLAGS(vi) BF64_GET((vi), 2, 30)
	72	#define DMU_SET_FEATUREFLAGS(vi, x) BF64_SET((vi), 2, 30, x)
	73
	74	/*
	75	* Feature flags for zfs send streams (flags in drr_versioninfo)
	76	*/
	77
	78	#define DMU_BACKUP_FEATURE_DEDUP (0x1)
	79	#define DMU_BACKUP_FEATURE_DEDUPPROPS (0x2)
	80	#define DMU_BACKUP_FEATURE_SA_SPILL (0x4)
	81
	82	/*
	83	* Mask of all supported backup features
	84	*/
	85	#define DMU_BACKUP_FEATURE_MASK (DMU_BACKUP_FEATURE_DEDUP \| \
	86	DMU_BACKUP_FEATURE_DEDUPPROPS \| DMU_BACKUP_FEATURE_SA_SPILL)
	87
	88	/* Are all features in the given flag word currently supported? */
	89	#define DMU_STREAM_SUPPORTED(x) (!((x) & ~DMU_BACKUP_FEATURE_MASK))
	90
	91	/*
	92	* The drr_versioninfo field of the dmu_replay_record has the
	93	* following layout:
	94	*
	95	* 64 56 48 40 32 24 16 8 0
	96	* +-------+-------+-------+-------+-------+-------+-------+-------+
	97	* \| reserved \| feature-flags \|C\|S\|
	98	* +-------+-------+-------+-------+-------+-------+-------+-------+
	99	*
	100	* The low order two bits indicate the header type: SUBSTREAM (0x1)
	101	* or COMPOUNDSTREAM (0x2). Using two bits for this is historical:
	102	* this field used to be a version number, where the two version types
	103	* were 1 and 2. Using two bits for this allows earlier versions of
	104	* the code to be able to recognize send streams that don't use any
	105	* of the features indicated by feature flags.
	106	*/
	107
34dc7c2f BB	108	#define DMU_BACKUP_MAGIC 0x2F5bacbacULL
	109
	110	#define DRR_FLAG_CLONE (1<<0)
	111	#define DRR_FLAG_CI_DATA (1<<1)
	112
428870ff BB	113	/*
	114	* flags in the drr_checksumflags field in the DRR_WRITE and
	115	* DRR_WRITE_BYREF blocks
	116	*/
	117	#define DRR_CHECKSUM_DEDUP (1<<0)
	118
	119	#define DRR_IS_DEDUP_CAPABLE(flags) ((flags) & DRR_CHECKSUM_DEDUP)
	120
34dc7c2f BB	121	/*
	122	* zfs ioctl command structure
	123	*/
	124	typedef struct dmu_replay_record {
	125	enum {
	126	DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS,
428870ff BB	127	DRR_WRITE, DRR_FREE, DRR_END, DRR_WRITE_BYREF,
428870ff BB	128	DRR_SPILL, DRR_NUMTYPES
34dc7c2f BB	129	} drr_type;
	130	uint32_t drr_payloadlen;
	131	union {
	132	struct drr_begin {
	133	uint64_t drr_magic;
428870ff	134	uint64_t drr_versioninfo; /* was drr_version */
34dc7c2f BB	135	uint64_t drr_creation_time;
	136	dmu_objset_type_t drr_type;
	137	uint32_t drr_flags;
	138	uint64_t drr_toguid;
	139	uint64_t drr_fromguid;
	140	char drr_toname[MAXNAMELEN];
	141	} drr_begin;
	142	struct drr_end {
	143	zio_cksum_t drr_checksum;
428870ff	144	uint64_t drr_toguid;
34dc7c2f BB	145	} drr_end;
	146	struct drr_object {
	147	uint64_t drr_object;
	148	dmu_object_type_t drr_type;
	149	dmu_object_type_t drr_bonustype;
	150	uint32_t drr_blksz;
	151	uint32_t drr_bonuslen;
428870ff	152	uint8_t drr_checksumtype;
34dc7c2f BB	153	uint8_t drr_compress;
34dc7c2f BB	154	uint8_t drr_pad[6];
428870ff	155	uint64_t drr_toguid;
34dc7c2f BB	156	/* bonus content follows */
	157	} drr_object;
	158	struct drr_freeobjects {
	159	uint64_t drr_firstobj;
	160	uint64_t drr_numobjs;
428870ff	161	uint64_t drr_toguid;
34dc7c2f BB	162	} drr_freeobjects;
	163	struct drr_write {
	164	uint64_t drr_object;
	165	dmu_object_type_t drr_type;
	166	uint32_t drr_pad;
	167	uint64_t drr_offset;
	168	uint64_t drr_length;
428870ff BB	169	uint64_t drr_toguid;
	170	uint8_t drr_checksumtype;
	171	uint8_t drr_checksumflags;
	172	uint8_t drr_pad2[6];
	173	ddt_key_t drr_key; /* deduplication key */
34dc7c2f BB	174	/* content follows */
	175	} drr_write;
	176	struct drr_free {
	177	uint64_t drr_object;
	178	uint64_t drr_offset;
	179	uint64_t drr_length;
428870ff	180	uint64_t drr_toguid;
34dc7c2f	181	} drr_free;
428870ff BB	182	struct drr_write_byref {
	183	/* where to put the data */
	184	uint64_t drr_object;
	185	uint64_t drr_offset;
	186	uint64_t drr_length;
	187	uint64_t drr_toguid;
	188	/* where to find the prior copy of the data */
	189	uint64_t drr_refguid;
	190	uint64_t drr_refobject;
	191	uint64_t drr_refoffset;
	192	/* properties of the data */
	193	uint8_t drr_checksumtype;
	194	uint8_t drr_checksumflags;
	195	uint8_t drr_pad2[6];
	196	ddt_key_t drr_key; /* deduplication key */
	197	} drr_write_byref;
	198	struct drr_spill {
	199	uint64_t drr_object;
	200	uint64_t drr_length;
	201	uint64_t drr_toguid;
	202	uint64_t drr_pad[4]; /* needed for crypto */
	203	/* spill data follows */
	204	} drr_spill;
34dc7c2f BB	205	} drr_u;
	206	} dmu_replay_record_t;
	207
572e2857 BB	208	/* diff record range types */
	209	typedef enum diff_type {
	210	DDR_NONE = 0x1,
	211	DDR_INUSE = 0x2,
	212	DDR_FREE = 0x4
	213	} diff_type_t;
	214
	215	/*
	216	* The diff reports back ranges of free or in-use objects.
	217	*/
	218	typedef struct dmu_diff_record {
	219	uint64_t ddr_type;
	220	uint64_t ddr_first;
	221	uint64_t ddr_last;
	222	} dmu_diff_record_t;
	223
34dc7c2f BB	224	typedef struct zinject_record {
	225	uint64_t zi_objset;
	226	uint64_t zi_object;
	227	uint64_t zi_start;
	228	uint64_t zi_end;
	229	uint64_t zi_guid;
	230	uint32_t zi_level;
	231	uint32_t zi_error;
	232	uint64_t zi_type;
	233	uint32_t zi_freq;
9babb374	234	uint32_t zi_failfast;
428870ff BB	235	char zi_func[MAXNAMELEN];
	236	uint32_t zi_iotype;
	237	int32_t zi_duration;
	238	uint64_t zi_timer;
c06d4368 AX	239	uint32_t zi_cmd;
c06d4368 AX	240	uint32_t zi_pad;
34dc7c2f BB	241	} zinject_record_t;
	242
	243	#define ZINJECT_NULL 0x1
	244	#define ZINJECT_FLUSH_ARC 0x2
	245	#define ZINJECT_UNLOAD_SPA 0x4
	246
26685276 BB	247	#define ZEVENT_NONBLOCK 0x1
	248	#define ZEVENT_SIZE 1024
	249
c06d4368 AX	250	typedef enum zinject_type {
	251	ZINJECT_UNINITIALIZED,
	252	ZINJECT_DATA_FAULT,
	253	ZINJECT_DEVICE_FAULT,
	254	ZINJECT_LABEL_FAULT,
	255	ZINJECT_IGNORED_WRITES,
	256	ZINJECT_PANIC,
	257	ZINJECT_DELAY_IO,
	258	} zinject_type_t;
	259
34dc7c2f BB	260	typedef struct zfs_share {
	261	uint64_t z_exportdata;
	262	uint64_t z_sharedata;
	263	uint64_t z_sharetype; /* 0 = share, 1 = unshare */
	264	uint64_t z_sharemax; /* max length of share string */
	265	} zfs_share_t;
	266
	267	/*
	268	* ZFS file systems may behave the usual, POSIX-compliant way, where
	269	* name lookups are case-sensitive. They may also be set up so that
	270	* all the name lookups are case-insensitive, or so that only some
	271	* lookups, the ones that set an FIGNORECASE flag, are case-insensitive.
	272	*/
	273	typedef enum zfs_case {
	274	ZFS_CASE_SENSITIVE,
	275	ZFS_CASE_INSENSITIVE,
	276	ZFS_CASE_MIXED
	277	} zfs_case_t;
	278
	279	typedef struct zfs_cmd {
	280	char zc_name[MAXPATHLEN];
	281	char zc_value[MAXPATHLEN * 2];
	282	char zc_string[MAXNAMELEN];
428870ff	283	char zc_top_ds[MAXPATHLEN];
34dc7c2f BB	284	uint64_t zc_guid;
	285	uint64_t zc_nvlist_conf; /* really (char ) /
	286	uint64_t zc_nvlist_conf_size;
	287	uint64_t zc_nvlist_src; /* really (char ) /
	288	uint64_t zc_nvlist_src_size;
	289	uint64_t zc_nvlist_dst; /* really (char ) /
	290	uint64_t zc_nvlist_dst_size;
	291	uint64_t zc_cookie;
	292	uint64_t zc_objset_type;
	293	uint64_t zc_perm_action;
	294	uint64_t zc_history; /* really (char ) /
	295	uint64_t zc_history_len;
	296	uint64_t zc_history_offset;
	297	uint64_t zc_obj;
9babb374	298	uint64_t zc_iflags; /* internal to zfs(7fs) */
34dc7c2f BB	299	zfs_share_t zc_share;
	300	dmu_objset_stats_t zc_objset_stats;
	301	struct drr_begin zc_begin_record;
	302	zinject_record_t zc_inject_record;
45d1cae3	303	boolean_t zc_defer_destroy;
428870ff	304	boolean_t zc_temphold;
572e2857 BB	305	uint64_t zc_action_handle;
572e2857 BB	306	int zc_cleanup_fd;
0cee2406 PJD	307	uint8_t zc_simple;
0cee2406 PJD	308	uint8_t zc_pad[3]; /* alignment */
572e2857 BB	309	uint64_t zc_sendobj;
	310	uint64_t zc_fromobj;
	311	uint64_t zc_createtxg;
	312	zfs_stat_t zc_stat;
34dc7c2f BB	313	} zfs_cmd_t;
34dc7c2f BB	314
9babb374 BB	315	typedef struct zfs_useracct {
	316	char zu_domain[256];
	317	uid_t zu_rid;
	318	uint32_t zu_pad;
	319	uint64_t zu_space;
	320	} zfs_useracct_t;
	321
572e2857 BB	322	#define ZFSDEV_MAX_MINOR (1 << 16)
572e2857 BB	323	#define ZFS_MIN_MINOR (ZFSDEV_MAX_MINOR + 1)
34dc7c2f	324
428870ff BB	325	#define ZPOOL_EXPORT_AFTER_SPLIT 0x1
428870ff BB	326
34dc7c2f BB	327	#ifdef _KERNEL
	328
	329	typedef struct zfs_creat {
	330	nvlist_t *zct_zplprops;
	331	nvlist_t *zct_props;
	332	} zfs_creat_t;
	333
34dc7c2f BB	334	extern int zfs_secpolicy_snapshot_perms(const char name, cred_t cr);
	335	extern int zfs_secpolicy_rename_perms(const char *from,
	336	const char to, cred_t cr);
	337	extern int zfs_secpolicy_destroy_perms(const char name, cred_t cr);
428870ff	338	extern int zfs_unmount_snap(const char , void );
34dc7c2f	339
325f0235 BB	340	enum zfsdev_state_type {
	341	ZST_ONEXIT,
	342	ZST_ZEVENT,
	343	ZST_ALL,
572e2857 BB	344	};
572e2857 BB	345
325f0235 BB	346	typedef struct zfsdev_state {
	347	list_node_t zs_next; /* next zfsdev_state_t link */
	348	struct file zs_file; / associated file struct */
	349	minor_t zs_minor; /* made up minor number */
	350	void zs_onexit; / onexit data */
	351	void zs_zevent; / zevent data */
	352	} zfsdev_state_t;
572e2857	353
325f0235 BB	354	extern void *zfsdev_get_state(minor_t minor, enum zfsdev_state_type which);
325f0235 BB	355	extern minor_t zfsdev_getminor(struct file *filp);
572e2857 BB	356	extern minor_t zfsdev_minor_alloc(void);
572e2857 BB	357
34dc7c2f BB	358	#endif /* _KERNEL */
	359
	360	#ifdef __cplusplus
	361	}
	362	#endif
	363
	364	#endif /* _SYS_ZFS_IOCTL_H */