[mirror_zfs-debian.git] / module / zfs / 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

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