[net-next-2.6.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
 *
 * 7.12
 *  - add umask flag to input argument of open, mknod and mkdir
 *  - add notification messages for invalidation of inodes and
 *    directory entries
 *
 * 7.13
 *  - make max number of background requests and congestion threshold
 *    tunables
 *
 * 7.14
 *  - add splice support to fuse device
 */

#ifndef _LINUX_FUSE_H
#define _LINUX_FUSE_H

#include <linux/types.h>

/*
 * Version negotiation:
 *
 * Both the kernel and userspace send the version they support in the
 * INIT request and reply respectively.
 *
 * If the major versions match then both shall use the smallest
 * of the two minor versions for communication.
 *
 * If the kernel supports a larger major version, then userspace shall
 * reply with the major version it supports, ignore the rest of the
 * INIT message and expect a new INIT message from the kernel with a
 * matching major version.
 *
 * If the library supports a larger major version, then it shall fall
 * back to the major protocol version sent by the kernel for
 * communication and reply with that major version (and an arbitrary
 * supported minor version).
 */

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

/** Minor version number of this interface */
#define FUSE_KERNEL_MINOR_VERSION 14

/** 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 ".."
 * FUSE_DONT_MASK: don't apply umask to file mode on create operations
 */
#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)
#define FUSE_DONT_MASK		(1 << 6)

/**
 * 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_INVAL_INODE = 2,
	FUSE_NOTIFY_INVAL_ENTRY = 3,
	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;
};

#define FUSE_COMPAT_MKNOD_IN_SIZE 8

struct fuse_mknod_in {
	__u32	mode;
	__u32	rdev;
	__u32	umask;
	__u32	padding;
};

struct fuse_mkdir_in {
	__u32	mode;
	__u32	umask;
};

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	unused;
};

struct fuse_create_in {
	__u32	flags;
	__u32	mode;
	__u32	umask;
	__u32	padding;
};

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;
	__u16   max_background;
	__u16   congestion_threshold;
	__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)

struct fuse_notify_inval_inode_out {
	__u64	ino;
	__s64	off;
	__s64	len;
};

struct fuse_notify_inval_entry_out {
	__u64	parent;
	__u32	namelen;
	__u32	padding;
};

#endif /* _LINUX_FUSE_H */
Commit	Line	Data
d8a5ba45 MS	1	/*
d8a5ba45 MS	2	FUSE: Filesystem in Userspace
1f55ed06	3	Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu>
d8a5ba45 MS	4
	5	This program can be distributed under the terms of the GNU GPL.
	6	See the file COPYING.
	7	*/
	8
c79e322f MS	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
a9ff4f87	16	* - add lk_flags in fuse_lk_in
f3332114	17	* - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in
0e9663ee	18	* - add blksize field to fuse_attr
a6643094	19	* - add file flags field to fuse_read_in and fuse_write_in
a7c1b990 TH	20	*
	21	* 7.10
	22	* - add nonseekable open flag
1f55ed06 MS	23	*
	24	* 7.11
	25	* - add IOCTL message
	26	* - add unsolicited notification support
	27	* - add POLL message and NOTIFY_POLL notification
e0a43ddc MS	28	*
	29	* 7.12
	30	* - add umask flag to input argument of open, mknod and mkdir
3b463ae0 JM	31	* - add notification messages for invalidation of inodes and
3b463ae0 JM	32	* directory entries
7a6d3c8b CH	33	*
	34	* 7.13
	35	* - make max number of background requests and congestion threshold
	36	* tunables
dd3bb14f MS	37	*
	38	* 7.14
	39	* - add splice support to fuse device
c79e322f	40	*/
d8a5ba45	41
29d434b3 TH	42	#ifndef _LINUX_FUSE_H
	43	#define _LINUX_FUSE_H
	44
1f55ed06	45	#include <linux/types.h>
d8a5ba45	46
37d217f0 MS	47	/*
	48	* Version negotiation:
	49	*
	50	* Both the kernel and userspace send the version they support in the
	51	* INIT request and reply respectively.
	52	*
	53	* If the major versions match then both shall use the smallest
	54	* of the two minor versions for communication.
	55	*
	56	* If the kernel supports a larger major version, then userspace shall
	57	* reply with the major version it supports, ignore the rest of the
	58	* INIT message and expect a new INIT message from the kernel with a
	59	* matching major version.
	60	*
	61	* If the library supports a larger major version, then it shall fall
	62	* back to the major protocol version sent by the kernel for
	63	* communication and reply with that major version (and an arbitrary
	64	* supported minor version).
	65	*/
	66
d8a5ba45	67	/** Version number of this interface */
9e6268db	68	#define FUSE_KERNEL_VERSION 7
d8a5ba45 MS	69
d8a5ba45 MS	70	/** Minor version number of this interface */
dd3bb14f	71	#define FUSE_KERNEL_MINOR_VERSION 14
d8a5ba45 MS	72
	73	/** The node ID of the root inode */
	74	#define FUSE_ROOT_ID 1
	75
06663267 MS	76	/* Make sure all structures are padded to 64bit boundary, so 32bit
	77	userspace works under 64bit kernels */
	78
d8a5ba45 MS	79	struct fuse_attr {
	80	__u64 ino;
	81	__u64 size;
	82	__u64 blocks;
	83	__u64 atime;
	84	__u64 mtime;
	85	__u64 ctime;
	86	__u32 atimensec;
	87	__u32 mtimensec;
	88	__u32 ctimensec;
	89	__u32 mode;
	90	__u32 nlink;
	91	__u32 uid;
	92	__u32 gid;
	93	__u32 rdev;
0e9663ee MS	94	__u32 blksize;
0e9663ee MS	95	__u32 padding;
d8a5ba45 MS	96	};
d8a5ba45 MS	97
e5e5558e MS	98	struct fuse_kstatfs {
	99	__u64 blocks;
	100	__u64 bfree;
	101	__u64 bavail;
	102	__u64 files;
	103	__u64 ffree;
	104	__u32 bsize;
	105	__u32 namelen;
de5f1202 MS	106	__u32 frsize;
	107	__u32 padding;
	108	__u32 spare[6];
e5e5558e MS	109	};
e5e5558e MS	110
71421259 MS	111	struct fuse_file_lock {
	112	__u64 start;
	113	__u64 end;
	114	__u32 type;
	115	__u32 pid; /* tgid */
	116	};
	117
9cd68455 MS	118	/**
	119	* Bitmasks for fuse_setattr_in.valid
	120	*/
9e6268db MS	121	#define FATTR_MODE (1 << 0)
	122	#define FATTR_UID (1 << 1)
	123	#define FATTR_GID (1 << 2)
	124	#define FATTR_SIZE (1 << 3)
	125	#define FATTR_ATIME (1 << 4)
	126	#define FATTR_MTIME (1 << 5)
befc649c	127	#define FATTR_FH (1 << 6)
17637cba MS	128	#define FATTR_ATIME_NOW (1 << 7)
17637cba MS	129	#define FATTR_MTIME_NOW (1 << 8)
f3332114	130	#define FATTR_LOCKOWNER (1 << 9)
9e6268db	131
45323fb7 MS	132	/**
	133	* Flags returned by the OPEN request
	134	*
	135	* FOPEN_DIRECT_IO: bypass page cache for this open file
	136	* FOPEN_KEEP_CACHE: don't invalidate the data cache on open
a7c1b990	137	* FOPEN_NONSEEKABLE: the file is not seekable
45323fb7 MS	138	*/
	139	#define FOPEN_DIRECT_IO (1 << 0)
	140	#define FOPEN_KEEP_CACHE (1 << 1)
a7c1b990	141	#define FOPEN_NONSEEKABLE (1 << 2)
45323fb7	142
9cd68455 MS	143	/**
9cd68455 MS	144	* INIT request/reply flags
33670fa2 MS	145	*
33670fa2 MS	146	* FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".."
e0a43ddc	147	* FUSE_DONT_MASK: don't apply umask to file mode on create operations
9cd68455 MS	148	*/
9cd68455 MS	149	#define FUSE_ASYNC_READ (1 << 0)
71421259	150	#define FUSE_POSIX_LOCKS (1 << 1)
c79e322f	151	#define FUSE_FILE_OPS (1 << 2)
6ff958ed	152	#define FUSE_ATOMIC_O_TRUNC (1 << 3)
33670fa2	153	#define FUSE_EXPORT_SUPPORT (1 << 4)
78bb6cb9	154	#define FUSE_BIG_WRITES (1 << 5)
e0a43ddc	155	#define FUSE_DONT_MASK (1 << 6)
9cd68455	156
151060ac TH	157	/**
	158	* CUSE INIT request/reply flags
	159	*
	160	* CUSE_UNRESTRICTED_IOCTL: use unrestricted ioctl
	161	*/
	162	#define CUSE_UNRESTRICTED_IOCTL (1 << 0)
	163
e9168c18 MS	164	/**
	165	* Release flags
	166	*/
	167	#define FUSE_RELEASE_FLUSH (1 << 0)
	168
c79e322f MS	169	/**
	170	* Getattr flags
	171	*/
	172	#define FUSE_GETATTR_FH (1 << 0)
	173
a9ff4f87 MS	174	/**
	175	* Lock flags
	176	*/
	177	#define FUSE_LK_FLOCK (1 << 0)
	178
b25e82e5 MS	179	/**
	180	* WRITE flags
	181	*
	182	* FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed
f3332114	183	* FUSE_WRITE_LOCKOWNER: lock_owner field is valid
b25e82e5 MS	184	*/
b25e82e5 MS	185	#define FUSE_WRITE_CACHE (1 << 0)
f3332114 MS	186	#define FUSE_WRITE_LOCKOWNER (1 << 1)
	187
	188	/**
	189	* Read flags
	190	*/
	191	#define FUSE_READ_LOCKOWNER (1 << 1)
b25e82e5	192
59efec7b TH	193	/**
	194	* Ioctl flags
	195	*
	196	* FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine
	197	* FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed
	198	* FUSE_IOCTL_RETRY: retry with new iovecs
	199	*
	200	* FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs
	201	*/
	202	#define FUSE_IOCTL_COMPAT (1 << 0)
	203	#define FUSE_IOCTL_UNRESTRICTED (1 << 1)
	204	#define FUSE_IOCTL_RETRY (1 << 2)
	205
	206	#define FUSE_IOCTL_MAX_IOV 256
	207
95668a69 TH	208	/**
	209	* Poll flags
	210	*
	211	* FUSE_POLL_SCHEDULE_NOTIFY: request poll notify
	212	*/
	213	#define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)
	214
334f485d	215	enum fuse_opcode {
e5e5558e MS	216	FUSE_LOOKUP = 1,
	217	FUSE_FORGET = 2, /* no reply */
	218	FUSE_GETATTR = 3,
9e6268db	219	FUSE_SETATTR = 4,
e5e5558e	220	FUSE_READLINK = 5,
9e6268db	221	FUSE_SYMLINK = 6,
9e6268db MS	222	FUSE_MKNOD = 8,
	223	FUSE_MKDIR = 9,
	224	FUSE_UNLINK = 10,
	225	FUSE_RMDIR = 11,
	226	FUSE_RENAME = 12,
	227	FUSE_LINK = 13,
b6aeaded MS	228	FUSE_OPEN = 14,
	229	FUSE_READ = 15,
	230	FUSE_WRITE = 16,
e5e5558e	231	FUSE_STATFS = 17,
b6aeaded MS	232	FUSE_RELEASE = 18,
b6aeaded MS	233	FUSE_FSYNC = 20,
92a8780e MS	234	FUSE_SETXATTR = 21,
	235	FUSE_GETXATTR = 22,
	236	FUSE_LISTXATTR = 23,
	237	FUSE_REMOVEXATTR = 24,
b6aeaded	238	FUSE_FLUSH = 25,
04730fef MS	239	FUSE_INIT = 26,
	240	FUSE_OPENDIR = 27,
	241	FUSE_READDIR = 28,
82547981	242	FUSE_RELEASEDIR = 29,
31d40d74	243	FUSE_FSYNCDIR = 30,
71421259 MS	244	FUSE_GETLK = 31,
	245	FUSE_SETLK = 32,
	246	FUSE_SETLKW = 33,
fd72faac	247	FUSE_ACCESS = 34,
a4d27e75 MS	248	FUSE_CREATE = 35,
a4d27e75 MS	249	FUSE_INTERRUPT = 36,
b2d2272f	250	FUSE_BMAP = 37,
0ec7ca41	251	FUSE_DESTROY = 38,
59efec7b	252	FUSE_IOCTL = 39,
95668a69	253	FUSE_POLL = 40,
151060ac TH	254
	255	/* CUSE specific operations */
	256	CUSE_INIT = 4096,
334f485d MS	257	};
334f485d MS	258
8599396b	259	enum fuse_notify_code {
95668a69	260	FUSE_NOTIFY_POLL = 1,
3b463ae0 JM	261	FUSE_NOTIFY_INVAL_INODE = 2,
3b463ae0 JM	262	FUSE_NOTIFY_INVAL_ENTRY = 3,
8599396b TH	263	FUSE_NOTIFY_CODE_MAX,
	264	};
	265
1d3d752b MS	266	/* The read buffer is required to be at least 8k, but may be much larger */
1d3d752b MS	267	#define FUSE_MIN_READ_BUFFER 8192
e5e5558e	268
0e9663ee MS	269	#define FUSE_COMPAT_ENTRY_OUT_SIZE 120
0e9663ee MS	270
e5e5558e MS	271	struct fuse_entry_out {
	272	__u64 nodeid; /* Inode ID */
	273	__u64 generation; /* Inode generation: nodeid:gen must
	274	be unique for the fs's lifetime */
	275	__u64 entry_valid; /* Cache timeout for the name */
	276	__u64 attr_valid; /* Cache timeout for the attributes */
	277	__u32 entry_valid_nsec;
	278	__u32 attr_valid_nsec;
	279	struct fuse_attr attr;
	280	};
	281
	282	struct fuse_forget_in {
9e6268db	283	__u64 nlookup;
e5e5558e MS	284	};
e5e5558e MS	285
c79e322f MS	286	struct fuse_getattr_in {
	287	__u32 getattr_flags;
	288	__u32 dummy;
	289	__u64 fh;
	290	};
	291
0e9663ee MS	292	#define FUSE_COMPAT_ATTR_OUT_SIZE 96
0e9663ee MS	293
e5e5558e MS	294	struct fuse_attr_out {
	295	__u64 attr_valid; /* Cache timeout for the attributes */
	296	__u32 attr_valid_nsec;
	297	__u32 dummy;
	298	struct fuse_attr attr;
	299	};
	300
e0a43ddc MS	301	#define FUSE_COMPAT_MKNOD_IN_SIZE 8
e0a43ddc MS	302
9e6268db MS	303	struct fuse_mknod_in {
	304	__u32 mode;
	305	__u32 rdev;
e0a43ddc MS	306	__u32 umask;
e0a43ddc MS	307	__u32 padding;
9e6268db MS	308	};
	309
	310	struct fuse_mkdir_in {
	311	__u32 mode;
e0a43ddc	312	__u32 umask;
9e6268db MS	313	};
	314
	315	struct fuse_rename_in {
	316	__u64 newdir;
	317	};
	318
	319	struct fuse_link_in {
	320	__u64 oldnodeid;
	321	};
	322
	323	struct fuse_setattr_in {
	324	__u32 valid;
06663267	325	__u32 padding;
befc649c MS	326	__u64 fh;
befc649c MS	327	__u64 size;
f3332114	328	__u64 lock_owner;
befc649c MS	329	__u64 atime;
	330	__u64 mtime;
	331	__u64 unused2;
	332	__u32 atimensec;
	333	__u32 mtimensec;
	334	__u32 unused3;
	335	__u32 mode;
	336	__u32 unused4;
	337	__u32 uid;
	338	__u32 gid;
	339	__u32 unused5;
9e6268db MS	340	};
9e6268db MS	341
b6aeaded	342	struct fuse_open_in {
e0a43ddc MS	343	__u32 flags;
	344	__u32 unused;
	345	};
	346
	347	struct fuse_create_in {
b6aeaded	348	__u32 flags;
fd72faac	349	__u32 mode;
e0a43ddc MS	350	__u32 umask;
e0a43ddc MS	351	__u32 padding;
b6aeaded MS	352	};
	353
	354	struct fuse_open_out {
	355	__u64 fh;
	356	__u32 open_flags;
06663267	357	__u32 padding;
b6aeaded MS	358	};
	359
	360	struct fuse_release_in {
	361	__u64 fh;
	362	__u32 flags;
e9168c18 MS	363	__u32 release_flags;
e9168c18 MS	364	__u64 lock_owner;
b6aeaded MS	365	};
	366
	367	struct fuse_flush_in {
	368	__u64 fh;
e9168c18	369	__u32 unused;
06663267	370	__u32 padding;
71421259	371	__u64 lock_owner;
b6aeaded MS	372	};
	373
	374	struct fuse_read_in {
	375	__u64 fh;
	376	__u64 offset;
	377	__u32 size;
f3332114 MS	378	__u32 read_flags;
f3332114 MS	379	__u64 lock_owner;
a6643094 MS	380	__u32 flags;
a6643094 MS	381	__u32 padding;
b6aeaded MS	382	};
b6aeaded MS	383
f3332114 MS	384	#define FUSE_COMPAT_WRITE_IN_SIZE 24
f3332114 MS	385
b6aeaded MS	386	struct fuse_write_in {
	387	__u64 fh;
	388	__u64 offset;
	389	__u32 size;
	390	__u32 write_flags;
f3332114	391	__u64 lock_owner;
a6643094 MS	392	__u32 flags;
a6643094 MS	393	__u32 padding;
b6aeaded MS	394	};
	395
	396	struct fuse_write_out {
	397	__u32 size;
06663267	398	__u32 padding;
b6aeaded MS	399	};
b6aeaded MS	400
de5f1202 MS	401	#define FUSE_COMPAT_STATFS_SIZE 48
de5f1202 MS	402
e5e5558e MS	403	struct fuse_statfs_out {
	404	struct fuse_kstatfs st;
	405	};
	406
b6aeaded MS	407	struct fuse_fsync_in {
	408	__u64 fh;
	409	__u32 fsync_flags;
06663267	410	__u32 padding;
b6aeaded MS	411	};
b6aeaded MS	412
92a8780e MS	413	struct fuse_setxattr_in {
	414	__u32 size;
	415	__u32 flags;
	416	};
	417
	418	struct fuse_getxattr_in {
	419	__u32 size;
06663267	420	__u32 padding;
92a8780e MS	421	};
	422
	423	struct fuse_getxattr_out {
	424	__u32 size;
06663267	425	__u32 padding;
92a8780e MS	426	};
92a8780e MS	427
71421259 MS	428	struct fuse_lk_in {
	429	__u64 fh;
	430	__u64 owner;
	431	struct fuse_file_lock lk;
a9ff4f87 MS	432	__u32 lk_flags;
a9ff4f87 MS	433	__u32 padding;
71421259 MS	434	};
	435
	436	struct fuse_lk_out {
	437	struct fuse_file_lock lk;
	438	};
	439
31d40d74 MS	440	struct fuse_access_in {
	441	__u32 mask;
	442	__u32 padding;
	443	};
	444
3ec870d5	445	struct fuse_init_in {
334f485d MS	446	__u32 major;
334f485d MS	447	__u32 minor;
9cd68455 MS	448	__u32 max_readahead;
9cd68455 MS	449	__u32 flags;
334f485d MS	450	};
334f485d MS	451
3ec870d5 MS	452	struct fuse_init_out {
	453	__u32 major;
	454	__u32 minor;
9cd68455 MS	455	__u32 max_readahead;
9cd68455 MS	456	__u32 flags;
7a6d3c8b CH	457	__u16 max_background;
7a6d3c8b CH	458	__u16 congestion_threshold;
3ec870d5 MS	459	__u32 max_write;
	460	};
	461
151060ac TH	462	#define CUSE_INIT_INFO_MAX 4096
	463
	464	struct cuse_init_in {
	465	__u32 major;
	466	__u32 minor;
	467	__u32 unused;
	468	__u32 flags;
	469	};
	470
	471	struct cuse_init_out {
	472	__u32 major;
	473	__u32 minor;
	474	__u32 unused;
	475	__u32 flags;
	476	__u32 max_read;
	477	__u32 max_write;
	478	__u32 dev_major; /* chardev major */
	479	__u32 dev_minor; /* chardev minor */
	480	__u32 spare[10];
	481	};
	482
a4d27e75 MS	483	struct fuse_interrupt_in {
	484	__u64 unique;
	485	};
	486
b2d2272f MS	487	struct fuse_bmap_in {
	488	__u64 block;
	489	__u32 blocksize;
	490	__u32 padding;
	491	};
	492
	493	struct fuse_bmap_out {
	494	__u64 block;
	495	};
	496
59efec7b TH	497	struct fuse_ioctl_in {
	498	__u64 fh;
	499	__u32 flags;
	500	__u32 cmd;
	501	__u64 arg;
	502	__u32 in_size;
	503	__u32 out_size;
	504	};
	505
	506	struct fuse_ioctl_out {
	507	__s32 result;
	508	__u32 flags;
	509	__u32 in_iovs;
	510	__u32 out_iovs;
	511	};
	512
95668a69 TH	513	struct fuse_poll_in {
	514	__u64 fh;
	515	__u64 kh;
	516	__u32 flags;
	517	__u32 padding;
	518	};
	519
	520	struct fuse_poll_out {
	521	__u32 revents;
	522	__u32 padding;
	523	};
	524
	525	struct fuse_notify_poll_wakeup_out {
	526	__u64 kh;
	527	};
	528
334f485d MS	529	struct fuse_in_header {
	530	__u32 len;
	531	__u32 opcode;
	532	__u64 unique;
	533	__u64 nodeid;
	534	__u32 uid;
	535	__u32 gid;
	536	__u32 pid;
06663267	537	__u32 padding;
334f485d MS	538	};
	539
	540	struct fuse_out_header {
	541	__u32 len;
	542	__s32 error;
	543	__u64 unique;
	544	};
	545
e5e5558e MS	546	struct fuse_dirent {
	547	__u64 ino;
	548	__u64 off;
	549	__u32 namelen;
	550	__u32 type;
	551	char name[0];
	552	};
	553
21f3da95	554	#define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
e5e5558e MS	555	#define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1))
	556	#define FUSE_DIRENT_SIZE(d) \
	557	FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
29d434b3	558
3b463ae0 JM	559	struct fuse_notify_inval_inode_out {
	560	__u64 ino;
	561	__s64 off;
	562	__s64 len;
	563	};
	564
	565	struct fuse_notify_inval_entry_out {
	566	__u64 parent;
	567	__u32 namelen;
	568	__u32 padding;
	569	};
	570
29d434b3	571	#endif /* _LINUX_FUSE_H */