[deliverable/linux.git] / include / linux / fuse.h

/*
    FUSE: Filesystem in Userspace
    Copyright (C) 2001-2008  Miklos Szeredi <miklos@szeredi.hu>

    This program can be distributed under the terms of the GNU GPL.
    See the file COPYING.
*/

/*
 * This file defines the kernel interface of FUSE
 *
 * Protocol changelog:
 *
 * 7.9:
 *  - new fuse_getattr_in input argument of GETATTR
 *  - add lk_flags in fuse_lk_in
 *  - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in
 *  - add blksize field to fuse_attr
 *  - add file flags field to fuse_read_in and fuse_write_in
 *
 * 7.10
 *  - add nonseekable open flag
 *
 * 7.11
 *  - add IOCTL message
 *  - add unsolicited notification support
 *  - add POLL message and NOTIFY_POLL notification
 */

#ifndef _LINUX_FUSE_H
#define _LINUX_FUSE_H

#include <linux/types.h>

/** Version number of this interface */
#define FUSE_KERNEL_VERSION 7

/** Minor version number of this interface */
#define FUSE_KERNEL_MINOR_VERSION 11

/** The node ID of the root inode */
#define FUSE_ROOT_ID 1

/* Make sure all structures are padded to 64bit boundary, so 32bit
   userspace works under 64bit kernels */

struct fuse_attr {
	__u64	ino;
	__u64	size;
	__u64	blocks;
	__u64	atime;
	__u64	mtime;
	__u64	ctime;
	__u32	atimensec;
	__u32	mtimensec;
	__u32	ctimensec;
	__u32	mode;
	__u32	nlink;
	__u32	uid;
	__u32	gid;
	__u32	rdev;
	__u32	blksize;
	__u32	padding;
};

struct fuse_kstatfs {
	__u64	blocks;
	__u64	bfree;
	__u64	bavail;
	__u64	files;
	__u64	ffree;
	__u32	bsize;
	__u32	namelen;
	__u32	frsize;
	__u32	padding;
	__u32	spare[6];
};

struct fuse_file_lock {
	__u64	start;
	__u64	end;
	__u32	type;
	__u32	pid; /* tgid */
};

/**
 * Bitmasks for fuse_setattr_in.valid
 */
#define FATTR_MODE	(1 << 0)
#define FATTR_UID	(1 << 1)
#define FATTR_GID	(1 << 2)
#define FATTR_SIZE	(1 << 3)
#define FATTR_ATIME	(1 << 4)
#define FATTR_MTIME	(1 << 5)
#define FATTR_FH	(1 << 6)
#define FATTR_ATIME_NOW	(1 << 7)
#define FATTR_MTIME_NOW	(1 << 8)
#define FATTR_LOCKOWNER	(1 << 9)

/**
 * Flags returned by the OPEN request
 *
 * FOPEN_DIRECT_IO: bypass page cache for this open file
 * FOPEN_KEEP_CACHE: don't invalidate the data cache on open
 * FOPEN_NONSEEKABLE: the file is not seekable
 */
#define FOPEN_DIRECT_IO		(1 << 0)
#define FOPEN_KEEP_CACHE	(1 << 1)
#define FOPEN_NONSEEKABLE	(1 << 2)

/**
 * INIT request/reply flags
 *
 * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".."
 */
#define FUSE_ASYNC_READ		(1 << 0)
#define FUSE_POSIX_LOCKS	(1 << 1)
#define FUSE_FILE_OPS		(1 << 2)
#define FUSE_ATOMIC_O_TRUNC	(1 << 3)
#define FUSE_EXPORT_SUPPORT	(1 << 4)
#define FUSE_BIG_WRITES		(1 << 5)

/**
 * CUSE INIT request/reply flags
 *
 * CUSE_UNRESTRICTED_IOCTL:  use unrestricted ioctl
 */
#define CUSE_UNRESTRICTED_IOCTL	(1 << 0)

/**
 * Release flags
 */
#define FUSE_RELEASE_FLUSH	(1 << 0)

/**
 * Getattr flags
 */
#define FUSE_GETATTR_FH		(1 << 0)

/**
 * Lock flags
 */
#define FUSE_LK_FLOCK		(1 << 0)

/**
 * WRITE flags
 *
 * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed
 * FUSE_WRITE_LOCKOWNER: lock_owner field is valid
 */
#define FUSE_WRITE_CACHE	(1 << 0)
#define FUSE_WRITE_LOCKOWNER	(1 << 1)

/**
 * Read flags
 */
#define FUSE_READ_LOCKOWNER	(1 << 1)

/**
 * Ioctl flags
 *
 * FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine
 * FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed
 * FUSE_IOCTL_RETRY: retry with new iovecs
 *
 * FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs
 */
#define FUSE_IOCTL_COMPAT	(1 << 0)
#define FUSE_IOCTL_UNRESTRICTED	(1 << 1)
#define FUSE_IOCTL_RETRY	(1 << 2)

#define FUSE_IOCTL_MAX_IOV	256

/**
 * Poll flags
 *
 * FUSE_POLL_SCHEDULE_NOTIFY: request poll notify
 */
#define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)

enum fuse_opcode {
	FUSE_LOOKUP	   = 1,
	FUSE_FORGET	   = 2,  /* no reply */
	FUSE_GETATTR	   = 3,
	FUSE_SETATTR	   = 4,
	FUSE_READLINK	   = 5,
	FUSE_SYMLINK	   = 6,
	FUSE_MKNOD	   = 8,
	FUSE_MKDIR	   = 9,
	FUSE_UNLINK	   = 10,
	FUSE_RMDIR	   = 11,
	FUSE_RENAME	   = 12,
	FUSE_LINK	   = 13,
	FUSE_OPEN	   = 14,
	FUSE_READ	   = 15,
	FUSE_WRITE	   = 16,
	FUSE_STATFS	   = 17,
	FUSE_RELEASE       = 18,
	FUSE_FSYNC         = 20,
	FUSE_SETXATTR      = 21,
	FUSE_GETXATTR      = 22,
	FUSE_LISTXATTR     = 23,
	FUSE_REMOVEXATTR   = 24,
	FUSE_FLUSH         = 25,
	FUSE_INIT          = 26,
	FUSE_OPENDIR       = 27,
	FUSE_READDIR       = 28,
	FUSE_RELEASEDIR    = 29,
	FUSE_FSYNCDIR      = 30,
	FUSE_GETLK         = 31,
	FUSE_SETLK         = 32,
	FUSE_SETLKW        = 33,
	FUSE_ACCESS        = 34,
	FUSE_CREATE        = 35,
	FUSE_INTERRUPT     = 36,
	FUSE_BMAP          = 37,
	FUSE_DESTROY       = 38,
	FUSE_IOCTL         = 39,
	FUSE_POLL          = 40,

	/* CUSE specific operations */
	CUSE_INIT          = 4096,
};

enum fuse_notify_code {
	FUSE_NOTIFY_POLL   = 1,
	FUSE_NOTIFY_CODE_MAX,
};

/* The read buffer is required to be at least 8k, but may be much larger */
#define FUSE_MIN_READ_BUFFER 8192

#define FUSE_COMPAT_ENTRY_OUT_SIZE 120

struct fuse_entry_out {
	__u64	nodeid;		/* Inode ID */
	__u64	generation;	/* Inode generation: nodeid:gen must
				   be unique for the fs's lifetime */
	__u64	entry_valid;	/* Cache timeout for the name */
	__u64	attr_valid;	/* Cache timeout for the attributes */
	__u32	entry_valid_nsec;
	__u32	attr_valid_nsec;
	struct fuse_attr attr;
};

struct fuse_forget_in {
	__u64	nlookup;
};

struct fuse_getattr_in {
	__u32	getattr_flags;
	__u32	dummy;
	__u64	fh;
};

#define FUSE_COMPAT_ATTR_OUT_SIZE 96

struct fuse_attr_out {
	__u64	attr_valid;	/* Cache timeout for the attributes */
	__u32	attr_valid_nsec;
	__u32	dummy;
	struct fuse_attr attr;
};

struct fuse_mknod_in {
	__u32	mode;
	__u32	rdev;
};

struct fuse_mkdir_in {
	__u32	mode;
	__u32	padding;
};

struct fuse_rename_in {
	__u64	newdir;
};

struct fuse_link_in {
	__u64	oldnodeid;
};

struct fuse_setattr_in {
	__u32	valid;
	__u32	padding;
	__u64	fh;
	__u64	size;
	__u64	lock_owner;
	__u64	atime;
	__u64	mtime;
	__u64	unused2;
	__u32	atimensec;
	__u32	mtimensec;
	__u32	unused3;
	__u32	mode;
	__u32	unused4;
	__u32	uid;
	__u32	gid;
	__u32	unused5;
};

struct fuse_open_in {
	__u32	flags;
	__u32	mode;
};

struct fuse_open_out {
	__u64	fh;
	__u32	open_flags;
	__u32	padding;
};

struct fuse_release_in {
	__u64	fh;
	__u32	flags;
	__u32	release_flags;
	__u64	lock_owner;
};

struct fuse_flush_in {
	__u64	fh;
	__u32	unused;
	__u32	padding;
	__u64	lock_owner;
};

struct fuse_read_in {
	__u64	fh;
	__u64	offset;
	__u32	size;
	__u32	read_flags;
	__u64	lock_owner;
	__u32	flags;
	__u32	padding;
};

#define FUSE_COMPAT_WRITE_IN_SIZE 24

struct fuse_write_in {
	__u64	fh;
	__u64	offset;
	__u32	size;
	__u32	write_flags;
	__u64	lock_owner;
	__u32	flags;
	__u32	padding;
};

struct fuse_write_out {
	__u32	size;
	__u32	padding;
};

#define FUSE_COMPAT_STATFS_SIZE 48

struct fuse_statfs_out {
	struct fuse_kstatfs st;
};

struct fuse_fsync_in {
	__u64	fh;
	__u32	fsync_flags;
	__u32	padding;
};

struct fuse_setxattr_in {
	__u32	size;
	__u32	flags;
};

struct fuse_getxattr_in {
	__u32	size;
	__u32	padding;
};

struct fuse_getxattr_out {
	__u32	size;
	__u32	padding;
};

struct fuse_lk_in {
	__u64	fh;
	__u64	owner;
	struct fuse_file_lock lk;
	__u32	lk_flags;
	__u32	padding;
};

struct fuse_lk_out {
	struct fuse_file_lock lk;
};

struct fuse_access_in {
	__u32	mask;
	__u32	padding;
};

struct fuse_init_in {
	__u32	major;
	__u32	minor;
	__u32	max_readahead;
	__u32	flags;
};

struct fuse_init_out {
	__u32	major;
	__u32	minor;
	__u32	max_readahead;
	__u32	flags;
	__u32	unused;
	__u32	max_write;
};

#define CUSE_INIT_INFO_MAX 4096

struct cuse_init_in {
	__u32	major;
	__u32	minor;
	__u32	unused;
	__u32	flags;
};

struct cuse_init_out {
	__u32	major;
	__u32	minor;
	__u32	unused;
	__u32	flags;
	__u32	max_read;
	__u32	max_write;
	__u32	dev_major;		/* chardev major */
	__u32	dev_minor;		/* chardev minor */
	__u32	spare[10];
};

struct fuse_interrupt_in {
	__u64	unique;
};

struct fuse_bmap_in {
	__u64	block;
	__u32	blocksize;
	__u32	padding;
};

struct fuse_bmap_out {
	__u64	block;
};

struct fuse_ioctl_in {
	__u64	fh;
	__u32	flags;
	__u32	cmd;
	__u64	arg;
	__u32	in_size;
	__u32	out_size;
};

struct fuse_ioctl_out {
	__s32	result;
	__u32	flags;
	__u32	in_iovs;
	__u32	out_iovs;
};

struct fuse_poll_in {
	__u64	fh;
	__u64	kh;
	__u32	flags;
	__u32   padding;
};

struct fuse_poll_out {
	__u32	revents;
	__u32	padding;
};

struct fuse_notify_poll_wakeup_out {
	__u64	kh;
};

struct fuse_in_header {
	__u32	len;
	__u32	opcode;
	__u64	unique;
	__u64	nodeid;
	__u32	uid;
	__u32	gid;
	__u32	pid;
	__u32	padding;
};

struct fuse_out_header {
	__u32	len;
	__s32	error;
	__u64	unique;
};

struct fuse_dirent {
	__u64	ino;
	__u64	off;
	__u32	namelen;
	__u32	type;
	char name[0];
};

#define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
#define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1))
#define FUSE_DIRENT_SIZE(d) \
	FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)

#endif /* _LINUX_FUSE_H */
Commit	Line	Data
	1	/*
	2	FUSE: Filesystem in Userspace
	3	Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu>
	4
	5	This program can be distributed under the terms of the GNU GPL.
	6	See the file COPYING.
	7	*/
	8
	9	/*
	10	* This file defines the kernel interface of FUSE
	11	*
	12	* Protocol changelog:
	13	*
	14	* 7.9:
	15	* - new fuse_getattr_in input argument of GETATTR
	16	* - add lk_flags in fuse_lk_in
	17	* - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in
	18	* - add blksize field to fuse_attr
	19	* - add file flags field to fuse_read_in and fuse_write_in
	20	*
	21	* 7.10
	22	* - add nonseekable open flag
	23	*
	24	* 7.11
	25	* - add IOCTL message
	26	* - add unsolicited notification support
	27	* - add POLL message and NOTIFY_POLL notification
	28	*/
	29
	30	#ifndef _LINUX_FUSE_H
	31	#define _LINUX_FUSE_H
	32
	33	#include <linux/types.h>
	34
	35	/** Version number of this interface */
	36	#define FUSE_KERNEL_VERSION 7
	37
	38	/** Minor version number of this interface */
	39	#define FUSE_KERNEL_MINOR_VERSION 11
	40
	41	/** The node ID of the root inode */
	42	#define FUSE_ROOT_ID 1
	43
	44	/* Make sure all structures are padded to 64bit boundary, so 32bit
	45	userspace works under 64bit kernels */
	46
	47	struct fuse_attr {
	48	__u64 ino;
	49	__u64 size;
	50	__u64 blocks;
	51	__u64 atime;
	52	__u64 mtime;
	53	__u64 ctime;
	54	__u32 atimensec;
	55	__u32 mtimensec;
	56	__u32 ctimensec;
	57	__u32 mode;
	58	__u32 nlink;
	59	__u32 uid;
	60	__u32 gid;
	61	__u32 rdev;
	62	__u32 blksize;
	63	__u32 padding;
	64	};
	65
	66	struct fuse_kstatfs {
	67	__u64 blocks;
	68	__u64 bfree;
	69	__u64 bavail;
	70	__u64 files;
	71	__u64 ffree;
	72	__u32 bsize;
	73	__u32 namelen;
	74	__u32 frsize;
	75	__u32 padding;
	76	__u32 spare[6];
	77	};
	78
	79	struct fuse_file_lock {
	80	__u64 start;
	81	__u64 end;
	82	__u32 type;
	83	__u32 pid; /* tgid */
	84	};
	85
	86	/**
	87	* Bitmasks for fuse_setattr_in.valid
	88	*/
	89	#define FATTR_MODE (1 << 0)
	90	#define FATTR_UID (1 << 1)
	91	#define FATTR_GID (1 << 2)
	92	#define FATTR_SIZE (1 << 3)
	93	#define FATTR_ATIME (1 << 4)
	94	#define FATTR_MTIME (1 << 5)
	95	#define FATTR_FH (1 << 6)
	96	#define FATTR_ATIME_NOW (1 << 7)
	97	#define FATTR_MTIME_NOW (1 << 8)
	98	#define FATTR_LOCKOWNER (1 << 9)
	99
	100	/**
	101	* Flags returned by the OPEN request
	102	*
	103	* FOPEN_DIRECT_IO: bypass page cache for this open file
	104	* FOPEN_KEEP_CACHE: don't invalidate the data cache on open
	105	* FOPEN_NONSEEKABLE: the file is not seekable
	106	*/
	107	#define FOPEN_DIRECT_IO (1 << 0)
	108	#define FOPEN_KEEP_CACHE (1 << 1)
	109	#define FOPEN_NONSEEKABLE (1 << 2)
	110
	111	/**
	112	* INIT request/reply flags
	113	*
	114	* FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".."
	115	*/
	116	#define FUSE_ASYNC_READ (1 << 0)
	117	#define FUSE_POSIX_LOCKS (1 << 1)
	118	#define FUSE_FILE_OPS (1 << 2)
	119	#define FUSE_ATOMIC_O_TRUNC (1 << 3)
	120	#define FUSE_EXPORT_SUPPORT (1 << 4)
	121	#define FUSE_BIG_WRITES (1 << 5)
	122
	123	/**
	124	* CUSE INIT request/reply flags
	125	*
	126	* CUSE_UNRESTRICTED_IOCTL: use unrestricted ioctl
	127	*/
	128	#define CUSE_UNRESTRICTED_IOCTL (1 << 0)
	129
	130	/**
	131	* Release flags
	132	*/
	133	#define FUSE_RELEASE_FLUSH (1 << 0)
	134
	135	/**
	136	* Getattr flags
	137	*/
	138	#define FUSE_GETATTR_FH (1 << 0)
	139
	140	/**
	141	* Lock flags
	142	*/
	143	#define FUSE_LK_FLOCK (1 << 0)
	144
	145	/**
	146	* WRITE flags
	147	*
	148	* FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed
	149	* FUSE_WRITE_LOCKOWNER: lock_owner field is valid
	150	*/
	151	#define FUSE_WRITE_CACHE (1 << 0)
	152	#define FUSE_WRITE_LOCKOWNER (1 << 1)
	153
	154	/**
	155	* Read flags
	156	*/
	157	#define FUSE_READ_LOCKOWNER (1 << 1)
	158
	159	/**
	160	* Ioctl flags
	161	*
	162	* FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine
	163	* FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed
	164	* FUSE_IOCTL_RETRY: retry with new iovecs
	165	*
	166	* FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs
	167	*/
	168	#define FUSE_IOCTL_COMPAT (1 << 0)
	169	#define FUSE_IOCTL_UNRESTRICTED (1 << 1)
	170	#define FUSE_IOCTL_RETRY (1 << 2)
	171
	172	#define FUSE_IOCTL_MAX_IOV 256
	173
	174	/**
	175	* Poll flags
	176	*
	177	* FUSE_POLL_SCHEDULE_NOTIFY: request poll notify
	178	*/
	179	#define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)
	180
	181	enum fuse_opcode {
	182	FUSE_LOOKUP = 1,
	183	FUSE_FORGET = 2, /* no reply */
	184	FUSE_GETATTR = 3,
	185	FUSE_SETATTR = 4,
	186	FUSE_READLINK = 5,
	187	FUSE_SYMLINK = 6,
	188	FUSE_MKNOD = 8,
	189	FUSE_MKDIR = 9,
	190	FUSE_UNLINK = 10,
	191	FUSE_RMDIR = 11,
	192	FUSE_RENAME = 12,
	193	FUSE_LINK = 13,
	194	FUSE_OPEN = 14,
	195	FUSE_READ = 15,
	196	FUSE_WRITE = 16,
	197	FUSE_STATFS = 17,
	198	FUSE_RELEASE = 18,
	199	FUSE_FSYNC = 20,
	200	FUSE_SETXATTR = 21,
	201	FUSE_GETXATTR = 22,
	202	FUSE_LISTXATTR = 23,
	203	FUSE_REMOVEXATTR = 24,
	204	FUSE_FLUSH = 25,
	205	FUSE_INIT = 26,
	206	FUSE_OPENDIR = 27,
	207	FUSE_READDIR = 28,
	208	FUSE_RELEASEDIR = 29,
	209	FUSE_FSYNCDIR = 30,
	210	FUSE_GETLK = 31,
	211	FUSE_SETLK = 32,
	212	FUSE_SETLKW = 33,
	213	FUSE_ACCESS = 34,
	214	FUSE_CREATE = 35,
	215	FUSE_INTERRUPT = 36,
	216	FUSE_BMAP = 37,
	217	FUSE_DESTROY = 38,
	218	FUSE_IOCTL = 39,
	219	FUSE_POLL = 40,
	220
	221	/* CUSE specific operations */
	222	CUSE_INIT = 4096,
	223	};
	224
	225	enum fuse_notify_code {
	226	FUSE_NOTIFY_POLL = 1,
	227	FUSE_NOTIFY_CODE_MAX,
	228	};
	229
	230	/* The read buffer is required to be at least 8k, but may be much larger */
	231	#define FUSE_MIN_READ_BUFFER 8192
	232
	233	#define FUSE_COMPAT_ENTRY_OUT_SIZE 120
	234
	235	struct fuse_entry_out {
	236	__u64 nodeid; /* Inode ID */
	237	__u64 generation; /* Inode generation: nodeid:gen must
	238	be unique for the fs's lifetime */
	239	__u64 entry_valid; /* Cache timeout for the name */
	240	__u64 attr_valid; /* Cache timeout for the attributes */
	241	__u32 entry_valid_nsec;
	242	__u32 attr_valid_nsec;
	243	struct fuse_attr attr;
	244	};
	245
	246	struct fuse_forget_in {
	247	__u64 nlookup;
	248	};
	249
	250	struct fuse_getattr_in {
	251	__u32 getattr_flags;
	252	__u32 dummy;
	253	__u64 fh;
	254	};
	255
	256	#define FUSE_COMPAT_ATTR_OUT_SIZE 96
	257
	258	struct fuse_attr_out {
	259	__u64 attr_valid; /* Cache timeout for the attributes */
	260	__u32 attr_valid_nsec;
	261	__u32 dummy;
	262	struct fuse_attr attr;
	263	};
	264
	265	struct fuse_mknod_in {
	266	__u32 mode;
	267	__u32 rdev;
	268	};
	269
	270	struct fuse_mkdir_in {
	271	__u32 mode;
	272	__u32 padding;
	273	};
	274
	275	struct fuse_rename_in {
	276	__u64 newdir;
	277	};
	278
	279	struct fuse_link_in {
	280	__u64 oldnodeid;
	281	};
	282
	283	struct fuse_setattr_in {
	284	__u32 valid;
	285	__u32 padding;
	286	__u64 fh;
	287	__u64 size;
	288	__u64 lock_owner;
	289	__u64 atime;
	290	__u64 mtime;
	291	__u64 unused2;
	292	__u32 atimensec;
	293	__u32 mtimensec;
	294	__u32 unused3;
	295	__u32 mode;
	296	__u32 unused4;
	297	__u32 uid;
	298	__u32 gid;
	299	__u32 unused5;
	300	};
	301
	302	struct fuse_open_in {
	303	__u32 flags;
	304	__u32 mode;
	305	};
	306
	307	struct fuse_open_out {
	308	__u64 fh;
	309	__u32 open_flags;
	310	__u32 padding;
	311	};
	312
	313	struct fuse_release_in {
	314	__u64 fh;
	315	__u32 flags;
	316	__u32 release_flags;
	317	__u64 lock_owner;
	318	};
	319
	320	struct fuse_flush_in {
	321	__u64 fh;
	322	__u32 unused;
	323	__u32 padding;
	324	__u64 lock_owner;
	325	};
	326
	327	struct fuse_read_in {
	328	__u64 fh;
	329	__u64 offset;
	330	__u32 size;
	331	__u32 read_flags;
	332	__u64 lock_owner;
	333	__u32 flags;
	334	__u32 padding;
	335	};
	336
	337	#define FUSE_COMPAT_WRITE_IN_SIZE 24
	338
	339	struct fuse_write_in {
	340	__u64 fh;
	341	__u64 offset;
	342	__u32 size;
	343	__u32 write_flags;
	344	__u64 lock_owner;
	345	__u32 flags;
	346	__u32 padding;
	347	};
	348
	349	struct fuse_write_out {
	350	__u32 size;
	351	__u32 padding;
	352	};
	353
	354	#define FUSE_COMPAT_STATFS_SIZE 48
	355
	356	struct fuse_statfs_out {
	357	struct fuse_kstatfs st;
	358	};
	359
	360	struct fuse_fsync_in {
	361	__u64 fh;
	362	__u32 fsync_flags;
	363	__u32 padding;
	364	};
	365
	366	struct fuse_setxattr_in {
	367	__u32 size;
	368	__u32 flags;
	369	};
	370
	371	struct fuse_getxattr_in {
	372	__u32 size;
	373	__u32 padding;
	374	};
	375
	376	struct fuse_getxattr_out {
	377	__u32 size;
	378	__u32 padding;
	379	};
	380
	381	struct fuse_lk_in {
	382	__u64 fh;
	383	__u64 owner;
	384	struct fuse_file_lock lk;
	385	__u32 lk_flags;
	386	__u32 padding;
	387	};
	388
	389	struct fuse_lk_out {
	390	struct fuse_file_lock lk;
	391	};
	392
	393	struct fuse_access_in {
	394	__u32 mask;
	395	__u32 padding;
	396	};
	397
	398	struct fuse_init_in {
	399	__u32 major;
	400	__u32 minor;
	401	__u32 max_readahead;
	402	__u32 flags;
	403	};
	404
	405	struct fuse_init_out {
	406	__u32 major;
	407	__u32 minor;
	408	__u32 max_readahead;
	409	__u32 flags;
	410	__u32 unused;
	411	__u32 max_write;
	412	};
	413
	414	#define CUSE_INIT_INFO_MAX 4096
	415
	416	struct cuse_init_in {
	417	__u32 major;
	418	__u32 minor;
	419	__u32 unused;
	420	__u32 flags;
	421	};
	422
	423	struct cuse_init_out {
	424	__u32 major;
	425	__u32 minor;
	426	__u32 unused;
	427	__u32 flags;
	428	__u32 max_read;
	429	__u32 max_write;
	430	__u32 dev_major; /* chardev major */
	431	__u32 dev_minor; /* chardev minor */
	432	__u32 spare[10];
	433	};
	434
	435	struct fuse_interrupt_in {
	436	__u64 unique;
	437	};
	438
	439	struct fuse_bmap_in {
	440	__u64 block;
	441	__u32 blocksize;
	442	__u32 padding;
	443	};
	444
	445	struct fuse_bmap_out {
	446	__u64 block;
	447	};
	448
	449	struct fuse_ioctl_in {
	450	__u64 fh;
	451	__u32 flags;
	452	__u32 cmd;
	453	__u64 arg;
	454	__u32 in_size;
	455	__u32 out_size;
	456	};
	457
	458	struct fuse_ioctl_out {
	459	__s32 result;
	460	__u32 flags;
	461	__u32 in_iovs;
	462	__u32 out_iovs;
	463	};
	464
	465	struct fuse_poll_in {
	466	__u64 fh;
	467	__u64 kh;
	468	__u32 flags;
	469	__u32 padding;
	470	};
	471
	472	struct fuse_poll_out {
	473	__u32 revents;
	474	__u32 padding;
	475	};
	476
	477	struct fuse_notify_poll_wakeup_out {
	478	__u64 kh;
	479	};
	480
	481	struct fuse_in_header {
	482	__u32 len;
	483	__u32 opcode;
	484	__u64 unique;
	485	__u64 nodeid;
	486	__u32 uid;
	487	__u32 gid;
	488	__u32 pid;
	489	__u32 padding;
	490	};
	491
	492	struct fuse_out_header {
	493	__u32 len;
	494	__s32 error;
	495	__u64 unique;
	496	};
	497
	498	struct fuse_dirent {
	499	__u64 ino;
	500	__u64 off;
	501	__u32 namelen;
	502	__u32 type;
	503	char name[0];
	504	};
	505
	506	#define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
	507	#define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1))
	508	#define FUSE_DIRENT_SIZE(d) \
	509	FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
	510
	511	#endif /* _LINUX_FUSE_H */