[mirror_ubuntu-artful-kernel.git] / include / linux / nfs_xdr.h

#ifndef _LINUX_NFS_XDR_H
#define _LINUX_NFS_XDR_H

#include <linux/sunrpc/xprt.h>

struct nfs4_fsid {
	__u64 major;
	__u64 minor;
};

struct nfs_fattr {
	unsigned short		valid;		/* which fields are valid */
	__u64			pre_size;	/* pre_op_attr.size	  */
	struct timespec		pre_mtime;	/* pre_op_attr.mtime	  */
	struct timespec		pre_ctime;	/* pre_op_attr.ctime	  */
	enum nfs_ftype		type;		/* always use NFSv2 types */
	__u32			mode;
	__u32			nlink;
	__u32			uid;
	__u32			gid;
	__u64			size;
	union {
		struct {
			__u32	blocksize;
			__u32	blocks;
		} nfs2;
		struct {
			__u64	used;
		} nfs3;
	} du;
	dev_t			rdev;
	union {
		__u64		nfs3;		/* also nfs2 */
		struct nfs4_fsid nfs4;
	} fsid_u;
	__u64			fileid;
	struct timespec		atime;
	struct timespec		mtime;
	struct timespec		ctime;
	__u32			bitmap[2];	/* NFSv4 returned attribute bitmap */
	__u64			change_attr;	/* NFSv4 change attribute */
	__u64			pre_change_attr;/* pre-op NFSv4 change attribute */
	unsigned long		timestamp;
};

#define NFS_ATTR_WCC		0x0001		/* pre-op WCC data    */
#define NFS_ATTR_FATTR		0x0002		/* post-op attributes */
#define NFS_ATTR_FATTR_V3	0x0004		/* NFSv3 attributes */
#define NFS_ATTR_FATTR_V4	0x0008
#define NFS_ATTR_PRE_CHANGE	0x0010

/*
 * Info on the file system
 */
struct nfs_fsinfo {
	struct nfs_fattr	*fattr; /* Post-op attributes */
	__u32			rtmax;	/* max.  read transfer size */
	__u32			rtpref;	/* pref. read transfer size */
	__u32			rtmult;	/* reads should be multiple of this */
	__u32			wtmax;	/* max.  write transfer size */
	__u32			wtpref;	/* pref. write transfer size */
	__u32			wtmult;	/* writes should be multiple of this */
	__u32			dtpref;	/* pref. readdir transfer size */
	__u64			maxfilesize;
	__u32			lease_time; /* in seconds */
};

struct nfs_fsstat {
	struct nfs_fattr	*fattr; /* Post-op attributes */
	__u64			tbytes;	/* total size in bytes */
	__u64			fbytes;	/* # of free bytes */
	__u64			abytes;	/* # of bytes available to user */
	__u64			tfiles;	/* # of files */
	__u64			ffiles;	/* # of free files */
	__u64			afiles;	/* # of files available to user */
};

struct nfs2_fsstat {
	__u32			tsize;  /* Server transfer size */
	__u32			bsize;  /* Filesystem block size */
	__u32			blocks; /* No. of "bsize" blocks on filesystem */
	__u32			bfree;  /* No. of free "bsize" blocks */
	__u32			bavail; /* No. of available "bsize" blocks */
};

struct nfs_pathconf {
	struct nfs_fattr	*fattr; /* Post-op attributes */
	__u32			max_link; /* max # of hard links */
	__u32			max_namelen; /* max name length */
};

struct nfs4_change_info {
	u32			atomic;
	u64			before;
	u64			after;
};

/*
 * Arguments to the open call.
 */
struct nfs_openargs {
	const struct nfs_fh *	fh;
	__u32                   seqid;
	int			open_flags;
	__u64                   clientid;
	__u32                   id;
	union {
		struct iattr *  attrs;    /* UNCHECKED, GUARDED */
		nfs4_verifier   verifier; /* EXCLUSIVE */
		nfs4_stateid	delegation;		/* CLAIM_DELEGATE_CUR */
		int		delegation_type;	/* CLAIM_PREVIOUS */
	} u;
	const struct qstr *	name;
	const struct nfs_server *server;	 /* Needed for ID mapping */
	const u32 *		bitmask;
	__u32			claim;
};

struct nfs_openres {
	nfs4_stateid            stateid;
	struct nfs_fh           fh;
	struct nfs4_change_info	cinfo;
	__u32                   rflags;
	struct nfs_fattr *      f_attr;
	const struct nfs_server *server;
	int			delegation_type;
	nfs4_stateid		delegation;
	__u32			do_recall;
	__u64			maxsize;
};

/*
 * Arguments to the open_confirm call.
 */
struct nfs_open_confirmargs {
	const struct nfs_fh *	fh;
	nfs4_stateid            stateid;
	__u32                   seqid;
};

struct nfs_open_confirmres {
	nfs4_stateid            stateid;
};

/*
 * Arguments to the close call.
 */
struct nfs_closeargs {
	struct nfs_fh *         fh;
	nfs4_stateid            stateid;
	__u32                   seqid;
	int			open_flags;
};

struct nfs_closeres {
	nfs4_stateid            stateid;
};
/*
 *  * Arguments to the lock,lockt, and locku call.
 *   */
struct nfs_lowner {
	__u64           clientid;
	u32                     id;
};

struct nfs_open_to_lock {
	__u32                   open_seqid;
	nfs4_stateid            open_stateid;
	__u32                   lock_seqid;
	struct nfs_lowner       lock_owner;
};

struct nfs_exist_lock {
	nfs4_stateid            stateid;
	__u32                   seqid;
};

struct nfs_lock_opargs {
	__u32                   reclaim;
	__u32                   new_lock_owner;
	union {
		struct nfs_open_to_lock *open_lock;
		struct nfs_exist_lock   *exist_lock;
	} u;
};

struct nfs_locku_opargs {
	__u32                   seqid;
	nfs4_stateid            stateid;
};

struct nfs_lockargs {
	struct nfs_fh *         fh;
	__u32                   type;
	__u64                   offset; 
	__u64                   length; 
	union {
		struct nfs_lock_opargs  *lock;    /* LOCK  */
		struct nfs_lowner       *lockt;  /* LOCKT */
		struct nfs_locku_opargs *locku;  /* LOCKU */
	} u;
};

struct nfs_lock_denied {
	__u64                   offset;
	__u64                   length;
	__u32                   type;
	struct nfs_lowner   	owner;
};

struct nfs_lockres {
	union {
		nfs4_stateid            stateid;/* LOCK success, LOCKU */
		struct nfs_lock_denied  denied; /* LOCK failed, LOCKT success */
	} u;
	const struct nfs_server *	server;
};

struct nfs4_delegreturnargs {
	const struct nfs_fh *fhandle;
	const nfs4_stateid *stateid;
};

/*
 * Arguments to the read call.
 */

#define NFS_READ_MAXIOV		(9U)
#if (NFS_READ_MAXIOV > (MAX_IOVEC -2))
#error "NFS_READ_MAXIOV is too large"
#endif

struct nfs_readargs {
	struct nfs_fh *		fh;
	struct nfs_open_context *context;
	__u64			offset;
	__u32			count;
	unsigned int		pgbase;
	struct page **		pages;
};

struct nfs_readres {
	struct nfs_fattr *	fattr;
	__u32			count;
	int                     eof;
};

/*
 * Arguments to the write call.
 */
#define NFS_WRITE_MAXIOV	(9U)
#if (NFS_WRITE_MAXIOV > (MAX_IOVEC -2))
#error "NFS_WRITE_MAXIOV is too large"
#endif

struct nfs_writeargs {
	struct nfs_fh *		fh;
	struct nfs_open_context *context;
	__u64			offset;
	__u32			count;
	enum nfs3_stable_how	stable;
	unsigned int		pgbase;
	struct page **		pages;
};

struct nfs_writeverf {
	enum nfs3_stable_how	committed;
	__u32			verifier[2];
};

struct nfs_writeres {
	struct nfs_fattr *	fattr;
	struct nfs_writeverf *	verf;
	__u32			count;
};

/*
 * Argument struct for decode_entry function
 */
struct nfs_entry {
	__u64			ino;
	__u64			cookie,
				prev_cookie;
	const char *		name;
	unsigned int		len;
	int			eof;
	struct nfs_fh *		fh;
	struct nfs_fattr *	fattr;
};

/*
 * The following types are for NFSv2 only.
 */
struct nfs_sattrargs {
	struct nfs_fh *		fh;
	struct iattr *		sattr;
};

struct nfs_diropargs {
	struct nfs_fh *		fh;
	const char *		name;
	unsigned int		len;
};

struct nfs_createargs {
	struct nfs_fh *		fh;
	const char *		name;
	unsigned int		len;
	struct iattr *		sattr;
};

struct nfs_renameargs {
	struct nfs_fh *		fromfh;
	const char *		fromname;
	unsigned int		fromlen;
	struct nfs_fh *		tofh;
	const char *		toname;
	unsigned int		tolen;
};

struct nfs_setattrargs {
	struct nfs_fh *                 fh;
	nfs4_stateid                    stateid;
	struct iattr *                  iap;
	const struct nfs_server *	server; /* Needed for name mapping */
	const u32 *			bitmask;
};

struct nfs_setattrres {
	struct nfs_fattr *              fattr;
	const struct nfs_server *	server;
};

struct nfs_linkargs {
	struct nfs_fh *		fromfh;
	struct nfs_fh *		tofh;
	const char *		toname;
	unsigned int		tolen;
};

struct nfs_symlinkargs {
	struct nfs_fh *		fromfh;
	const char *		fromname;
	unsigned int		fromlen;
	const char *		topath;
	unsigned int		tolen;
	struct iattr *		sattr;
};

struct nfs_readdirargs {
	struct nfs_fh *		fh;
	__u32			cookie;
	unsigned int		count;
	struct page **		pages;
};

struct nfs_diropok {
	struct nfs_fh *		fh;
	struct nfs_fattr *	fattr;
};

struct nfs_readlinkargs {
	struct nfs_fh *		fh;
	unsigned int		pgbase;
	unsigned int		pglen;
	struct page **		pages;
};

struct nfs3_sattrargs {
	struct nfs_fh *		fh;
	struct iattr *		sattr;
	unsigned int		guard;
	struct timespec		guardtime;
};

struct nfs3_diropargs {
	struct nfs_fh *		fh;
	const char *		name;
	unsigned int		len;
};

struct nfs3_accessargs {
	struct nfs_fh *		fh;
	__u32			access;
};

struct nfs3_createargs {
	struct nfs_fh *		fh;
	const char *		name;
	unsigned int		len;
	struct iattr *		sattr;
	enum nfs3_createmode	createmode;
	__u32			verifier[2];
};

struct nfs3_mkdirargs {
	struct nfs_fh *		fh;
	const char *		name;
	unsigned int		len;
	struct iattr *		sattr;
};

struct nfs3_symlinkargs {
	struct nfs_fh *		fromfh;
	const char *		fromname;
	unsigned int		fromlen;
	const char *		topath;
	unsigned int		tolen;
	struct iattr *		sattr;
};

struct nfs3_mknodargs {
	struct nfs_fh *		fh;
	const char *		name;
	unsigned int		len;
	enum nfs3_ftype		type;
	struct iattr *		sattr;
	dev_t			rdev;
};

struct nfs3_renameargs {
	struct nfs_fh *		fromfh;
	const char *		fromname;
	unsigned int		fromlen;
	struct nfs_fh *		tofh;
	const char *		toname;
	unsigned int		tolen;
};

struct nfs3_linkargs {
	struct nfs_fh *		fromfh;
	struct nfs_fh *		tofh;
	const char *		toname;
	unsigned int		tolen;
};

struct nfs3_readdirargs {
	struct nfs_fh *		fh;
	__u64			cookie;
	__u32			verf[2];
	int			plus;
	unsigned int            count;
	struct page **		pages;
};

struct nfs3_diropres {
	struct nfs_fattr *	dir_attr;
	struct nfs_fh *		fh;
	struct nfs_fattr *	fattr;
};

struct nfs3_accessres {
	struct nfs_fattr *	fattr;
	__u32			access;
};

struct nfs3_readlinkargs {
	struct nfs_fh *		fh;
	unsigned int		pgbase;
	unsigned int		pglen;
	struct page **		pages;
};

struct nfs3_renameres {
	struct nfs_fattr *	fromattr;
	struct nfs_fattr *	toattr;
};

struct nfs3_linkres {
	struct nfs_fattr *	dir_attr;
	struct nfs_fattr *	fattr;
};

struct nfs3_readdirres {
	struct nfs_fattr *	dir_attr;
	__u32 *			verf;
	int			plus;
};

#ifdef CONFIG_NFS_V4

typedef u64 clientid4;

struct nfs4_accessargs {
	const struct nfs_fh *		fh;
	u32				access;
};

struct nfs4_accessres {
	u32				supported;
	u32				access;
};

struct nfs4_create_arg {
	u32				ftype;
	union {
		struct qstr *		symlink;    /* NF4LNK */
		struct {
			u32		specdata1;
			u32		specdata2;
		} device;    /* NF4BLK, NF4CHR */
	} u;
	const struct qstr *		name;
	const struct nfs_server *	server;
	const struct iattr *		attrs;
	const struct nfs_fh *		dir_fh;
	const u32 *			bitmask;
};

struct nfs4_create_res {
	const struct nfs_server *	server;
	struct nfs_fh *			fh;
	struct nfs_fattr *		fattr;
	struct nfs4_change_info		dir_cinfo;
};

struct nfs4_fsinfo_arg {
	const struct nfs_fh *		fh;
	const u32 *			bitmask;
};

struct nfs4_getattr_arg {
	const struct nfs_fh *		fh;
	const u32 *			bitmask;
};

struct nfs4_getattr_res {
	const struct nfs_server *	server;
	struct nfs_fattr *		fattr;
};

struct nfs4_link_arg {
	const struct nfs_fh *		fh;
	const struct nfs_fh *		dir_fh;
	const struct qstr *		name;
};

struct nfs4_lookup_arg {
	const struct nfs_fh *		dir_fh;
	const struct qstr *		name;
	const u32 *			bitmask;
};

struct nfs4_lookup_res {
	const struct nfs_server *	server;
	struct nfs_fattr *		fattr;
	struct nfs_fh *			fh;
};

struct nfs4_lookup_root_arg {
	const u32 *			bitmask;
};

struct nfs4_pathconf_arg {
	const struct nfs_fh *		fh;
	const u32 *			bitmask;
};

struct nfs4_readdir_arg {
	const struct nfs_fh *		fh;
	u64				cookie;
	nfs4_verifier			verifier;
	u32				count;
	struct page **			pages;	/* zero-copy data */
	unsigned int			pgbase;	/* zero-copy data */
	const u32 *			bitmask;
};

struct nfs4_readdir_res {
	nfs4_verifier			verifier;
	unsigned int			pgbase;
};

struct nfs4_readlink {
	const struct nfs_fh *		fh;
	unsigned int			pgbase;
	unsigned int			pglen;   /* zero-copy data */
	struct page **			pages;   /* zero-copy data */
};

struct nfs4_remove_arg {
	const struct nfs_fh *		fh;
	const struct qstr *		name;
};

struct nfs4_rename_arg {
	const struct nfs_fh *		old_dir;
	const struct nfs_fh *		new_dir;
	const struct qstr *		old_name;
	const struct qstr *		new_name;
};

struct nfs4_rename_res {
	struct nfs4_change_info		old_cinfo;
	struct nfs4_change_info		new_cinfo;
};

struct nfs4_setclientid {
	const nfs4_verifier *		sc_verifier;      /* request */
	unsigned int			sc_name_len;
	char				sc_name[32];	  /* request */
	u32				sc_prog;          /* request */
	unsigned int			sc_netid_len;
	char				sc_netid[4];	  /* request */
	unsigned int			sc_uaddr_len;
	char				sc_uaddr[24];     /* request */
	u32				sc_cb_ident;      /* request */
};

struct nfs4_statfs_arg {
	const struct nfs_fh *		fh;
	const u32 *			bitmask;
};

struct nfs4_server_caps_res {
	u32				attr_bitmask[2];
	u32				acl_bitmask;
	u32				has_links;
	u32				has_symlinks;
};

#endif /* CONFIG_NFS_V4 */

struct nfs_page;

struct nfs_read_data {
	int			flags;
	struct rpc_task		task;
	struct inode		*inode;
	struct rpc_cred		*cred;
	struct nfs_fattr	fattr;	/* fattr storage */
	struct list_head	pages;	/* Coalesced read requests */
	struct nfs_page		*req;	/* multi ops per nfs_page */
	struct page		*pagevec[NFS_READ_MAXIOV];
	struct nfs_readargs args;
	struct nfs_readres  res;
#ifdef CONFIG_NFS_V4
	unsigned long		timestamp;	/* For lease renewal */
#endif
	void (*complete) (struct nfs_read_data *, int);
};

struct nfs_write_data {
	int			flags;
	struct rpc_task		task;
	struct inode		*inode;
	struct rpc_cred		*cred;
	struct nfs_fattr	fattr;
	struct nfs_writeverf	verf;
	struct list_head	pages;		/* Coalesced requests we wish to flush */
	struct nfs_page		*req;		/* multi ops per nfs_page */
	struct page		*pagevec[NFS_WRITE_MAXIOV];
	struct nfs_writeargs	args;		/* argument struct */
	struct nfs_writeres	res;		/* result struct */
#ifdef CONFIG_NFS_V4
	unsigned long		timestamp;	/* For lease renewal */
#endif
	void (*complete) (struct nfs_write_data *, int);
};

struct nfs_access_entry;

/*
 * RPC procedure vector for NFSv2/NFSv3 demuxing
 */
struct nfs_rpc_ops {
	int	version;		/* Protocol version */
	struct dentry_operations *dentry_ops;
	struct inode_operations *dir_inode_ops;
	struct inode_operations *file_inode_ops;

	int	(*getroot) (struct nfs_server *, struct nfs_fh *,
			    struct nfs_fsinfo *);
	int	(*getattr) (struct nfs_server *, struct nfs_fh *,
			    struct nfs_fattr *);
	int	(*setattr) (struct dentry *, struct nfs_fattr *,
			    struct iattr *);
	int	(*lookup)  (struct inode *, struct qstr *,
			    struct nfs_fh *, struct nfs_fattr *);
	int	(*access)  (struct inode *, struct nfs_access_entry *);
	int	(*readlink)(struct inode *, struct page *, unsigned int,
			    unsigned int);
	int	(*read)    (struct nfs_read_data *);
	int	(*write)   (struct nfs_write_data *);
	int	(*commit)  (struct nfs_write_data *);
	int	(*create)  (struct inode *, struct dentry *,
			    struct iattr *, int);
	int	(*remove)  (struct inode *, struct qstr *);
	int	(*unlink_setup)  (struct rpc_message *,
			    struct dentry *, struct qstr *);
	int	(*unlink_done) (struct dentry *, struct rpc_task *);
	int	(*rename)  (struct inode *, struct qstr *,
			    struct inode *, struct qstr *);
	int	(*link)    (struct inode *, struct inode *, struct qstr *);
	int	(*symlink) (struct inode *, struct qstr *, struct qstr *,
			    struct iattr *, struct nfs_fh *,
			    struct nfs_fattr *);
	int	(*mkdir)   (struct inode *, struct dentry *, struct iattr *);
	int	(*rmdir)   (struct inode *, struct qstr *);
	int	(*readdir) (struct dentry *, struct rpc_cred *,
			    u64, struct page *, unsigned int, int);
	int	(*mknod)   (struct inode *, struct dentry *, struct iattr *,
			    dev_t);
	int	(*statfs)  (struct nfs_server *, struct nfs_fh *,
			    struct nfs_fsstat *);
	int	(*fsinfo)  (struct nfs_server *, struct nfs_fh *,
			    struct nfs_fsinfo *);
	int	(*pathconf) (struct nfs_server *, struct nfs_fh *,
			     struct nfs_pathconf *);
	u32 *	(*decode_dirent)(u32 *, struct nfs_entry *, int plus);
	void	(*read_setup)   (struct nfs_read_data *);
	void	(*write_setup)  (struct nfs_write_data *, int how);
	void	(*commit_setup) (struct nfs_write_data *, int how);
	int	(*file_open)   (struct inode *, struct file *);
	int	(*file_release) (struct inode *, struct file *);
	int	(*lock)(struct file *, int, struct file_lock *);
};

/*
 * 	NFS_CALL(getattr, inode, (fattr));
 * into
 *	NFS_PROTO(inode)->getattr(fattr);
 */
#define NFS_CALL(op, inode, args)	NFS_PROTO(inode)->op args

/*
 * Function vectors etc. for the NFS client
 */
extern struct nfs_rpc_ops	nfs_v2_clientops;
extern struct nfs_rpc_ops	nfs_v3_clientops;
extern struct nfs_rpc_ops	nfs_v4_clientops;
extern struct rpc_version	nfs_version2;
extern struct rpc_version	nfs_version3;
extern struct rpc_version	nfs_version4;

#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_NFS_XDR_H
	2	#define _LINUX_NFS_XDR_H
	3
	4	#include <linux/sunrpc/xprt.h>
	5
	6	struct nfs4_fsid {
	7	__u64 major;
	8	__u64 minor;
	9	};
	10
	11	struct nfs_fattr {
	12	unsigned short valid; /* which fields are valid */
	13	__u64 pre_size; /* pre_op_attr.size */
	14	struct timespec pre_mtime; /* pre_op_attr.mtime */
	15	struct timespec pre_ctime; /* pre_op_attr.ctime */
	16	enum nfs_ftype type; /* always use NFSv2 types */
	17	__u32 mode;
	18	__u32 nlink;
	19	__u32 uid;
	20	__u32 gid;
	21	__u64 size;
	22	union {
	23	struct {
	24	__u32 blocksize;
	25	__u32 blocks;
	26	} nfs2;
	27	struct {
	28	__u64 used;
	29	} nfs3;
	30	} du;
	31	dev_t rdev;
	32	union {
	33	__u64 nfs3; /* also nfs2 */
	34	struct nfs4_fsid nfs4;
	35	} fsid_u;
	36	__u64 fileid;
	37	struct timespec atime;
	38	struct timespec mtime;
	39	struct timespec ctime;
	40	__u32 bitmap[2]; /* NFSv4 returned attribute bitmap */
	41	__u64 change_attr; /* NFSv4 change attribute */
	42	__u64 pre_change_attr;/* pre-op NFSv4 change attribute */
	43	unsigned long timestamp;
	44	};
	45
	46	#define NFS_ATTR_WCC 0x0001 /* pre-op WCC data */
	47	#define NFS_ATTR_FATTR 0x0002 /* post-op attributes */
	48	#define NFS_ATTR_FATTR_V3 0x0004 /* NFSv3 attributes */
	49	#define NFS_ATTR_FATTR_V4 0x0008
	50	#define NFS_ATTR_PRE_CHANGE 0x0010
	51
	52	/*
	53	* Info on the file system
	54	*/
	55	struct nfs_fsinfo {
	56	struct nfs_fattr fattr; / Post-op attributes */
	57	__u32 rtmax; /* max. read transfer size */
	58	__u32 rtpref; /* pref. read transfer size */
	59	__u32 rtmult; /* reads should be multiple of this */
	60	__u32 wtmax; /* max. write transfer size */
	61	__u32 wtpref; /* pref. write transfer size */
	62	__u32 wtmult; /* writes should be multiple of this */
	63	__u32 dtpref; /* pref. readdir transfer size */
	64	__u64 maxfilesize;
65	__u32 lease_time; /* in seconds */
66	};
67
68	struct nfs_fsstat {
69	struct nfs_fattr fattr; / Post-op attributes */
70	__u64 tbytes; /* total size in bytes */
71	__u64 fbytes; /* # of free bytes */
72	__u64 abytes; /* # of bytes available to user */
73	__u64 tfiles; /* # of files */
74	__u64 ffiles; /* # of free files */
75	__u64 afiles; /* # of files available to user */
76	};
77
78	struct nfs2_fsstat {
79	__u32 tsize; /* Server transfer size */
80	__u32 bsize; /* Filesystem block size */
81	__u32 blocks; /* No. of "bsize" blocks on filesystem */
82	__u32 bfree; /* No. of free "bsize" blocks */
83	__u32 bavail; /* No. of available "bsize" blocks */
84	};
85
86	struct nfs_pathconf {
87	struct nfs_fattr fattr; / Post-op attributes */
88	__u32 max_link; /* max # of hard links */
89	__u32 max_namelen; /* max name length */
90	};
91
92	struct nfs4_change_info {
93	u32 atomic;
94	u64 before;
95	u64 after;
96	};
97
98	/*
99	* Arguments to the open call.
100	*/
101	struct nfs_openargs {
102	const struct nfs_fh * fh;
103	__u32 seqid;
104	int open_flags;
105	__u64 clientid;
106	__u32 id;
107	union {
108	struct iattr * attrs; /* UNCHECKED, GUARDED */
109	nfs4_verifier verifier; /* EXCLUSIVE */
110	nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
111	int delegation_type; /* CLAIM_PREVIOUS */
112	} u;
113	const struct qstr * name;
114	const struct nfs_server server; / Needed for ID mapping */
115	const u32 * bitmask;
116	__u32 claim;
117	};
118
119	struct nfs_openres {
120	nfs4_stateid stateid;
121	struct nfs_fh fh;
122	struct nfs4_change_info cinfo;
123	__u32 rflags;
124	struct nfs_fattr * f_attr;
125	const struct nfs_server *server;
126	int delegation_type;
127	nfs4_stateid delegation;
128	__u32 do_recall;
129	__u64 maxsize;
130	};
131
132	/*
133	* Arguments to the open_confirm call.
134	*/
135	struct nfs_open_confirmargs {
136	const struct nfs_fh * fh;
137	nfs4_stateid stateid;
138	__u32 seqid;
139	};
140
141	struct nfs_open_confirmres {
142	nfs4_stateid stateid;
143	};
144
145	/*
146	* Arguments to the close call.
147	*/
148	struct nfs_closeargs {
149	struct nfs_fh * fh;
150	nfs4_stateid stateid;
151	__u32 seqid;
152	int open_flags;
153	};
154
155	struct nfs_closeres {
156	nfs4_stateid stateid;
157	};
158	/*
159	* * Arguments to the lock,lockt, and locku call.
160	* */
161	struct nfs_lowner {
162	__u64 clientid;
163	u32 id;
164	};
165
166	struct nfs_open_to_lock {
167	__u32 open_seqid;
168	nfs4_stateid open_stateid;
169	__u32 lock_seqid;
170	struct nfs_lowner lock_owner;
171	};
172
173	struct nfs_exist_lock {
174	nfs4_stateid stateid;
175	__u32 seqid;
176	};
177
178	struct nfs_lock_opargs {
179	__u32 reclaim;
180	__u32 new_lock_owner;
181	union {
182	struct nfs_open_to_lock *open_lock;
183	struct nfs_exist_lock *exist_lock;
184	} u;
185	};
186
187	struct nfs_locku_opargs {
188	__u32 seqid;
189	nfs4_stateid stateid;
190	};
191
192	struct nfs_lockargs {
193	struct nfs_fh * fh;
194	__u32 type;
195	__u64 offset;
196	__u64 length;
197	union {
198	struct nfs_lock_opargs lock; / LOCK */
199	struct nfs_lowner lockt; / LOCKT */
200	struct nfs_locku_opargs locku; / LOCKU */
201	} u;
202	};
203
204	struct nfs_lock_denied {
205	__u64 offset;
206	__u64 length;
207	__u32 type;
208	struct nfs_lowner owner;
209	};
210
211	struct nfs_lockres {
212	union {
213	nfs4_stateid stateid;/* LOCK success, LOCKU */
214	struct nfs_lock_denied denied; /* LOCK failed, LOCKT success */
215	} u;
216	const struct nfs_server * server;
217	};
218
219	struct nfs4_delegreturnargs {
220	const struct nfs_fh *fhandle;
221	const nfs4_stateid *stateid;
222	};
223
224	/*
225	* Arguments to the read call.
226	*/
227
228	#define NFS_READ_MAXIOV (9U)
229	#if (NFS_READ_MAXIOV > (MAX_IOVEC -2))
230	#error "NFS_READ_MAXIOV is too large"
231	#endif
232
233	struct nfs_readargs {
234	struct nfs_fh * fh;
235	struct nfs_open_context *context;
236	__u64 offset;
237	__u32 count;
238	unsigned int pgbase;
239	struct page ** pages;
240	};
241
242	struct nfs_readres {
243	struct nfs_fattr * fattr;
244	__u32 count;
245	int eof;
246	};
247
248	/*
249	* Arguments to the write call.
250	*/
251	#define NFS_WRITE_MAXIOV (9U)
252	#if (NFS_WRITE_MAXIOV > (MAX_IOVEC -2))
253	#error "NFS_WRITE_MAXIOV is too large"
254	#endif
255
256	struct nfs_writeargs {
257	struct nfs_fh * fh;
258	struct nfs_open_context *context;
259	__u64 offset;
260	__u32 count;
261	enum nfs3_stable_how stable;
262	unsigned int pgbase;
263	struct page ** pages;
264	};
265
266	struct nfs_writeverf {
267	enum nfs3_stable_how committed;
268	__u32 verifier[2];
269	};
270
271	struct nfs_writeres {
272	struct nfs_fattr * fattr;
273	struct nfs_writeverf * verf;
274	__u32 count;
275	};
276
277	/*
278	* Argument struct for decode_entry function
279	*/
280	struct nfs_entry {
281	__u64 ino;
282	__u64 cookie,
283	prev_cookie;
284	const char * name;
285	unsigned int len;
286	int eof;
287	struct nfs_fh * fh;
288	struct nfs_fattr * fattr;
289	};
290
291	/*
292	* The following types are for NFSv2 only.
293	*/
294	struct nfs_sattrargs {
295	struct nfs_fh * fh;
296	struct iattr * sattr;
297	};
298
299	struct nfs_diropargs {
300	struct nfs_fh * fh;
301	const char * name;
302	unsigned int len;
303	};
304
305	struct nfs_createargs {
306	struct nfs_fh * fh;
307	const char * name;
308	unsigned int len;
309	struct iattr * sattr;
310	};
311
312	struct nfs_renameargs {
313	struct nfs_fh * fromfh;
314	const char * fromname;
315	unsigned int fromlen;
316	struct nfs_fh * tofh;
317	const char * toname;
318	unsigned int tolen;
319	};
320
321	struct nfs_setattrargs {
322	struct nfs_fh * fh;
323	nfs4_stateid stateid;
324	struct iattr * iap;
325	const struct nfs_server * server; /* Needed for name mapping */
326	const u32 * bitmask;
327	};
328
329	struct nfs_setattrres {
330	struct nfs_fattr * fattr;
331	const struct nfs_server * server;
332	};
333
334	struct nfs_linkargs {
335	struct nfs_fh * fromfh;
336	struct nfs_fh * tofh;
337	const char * toname;
338	unsigned int tolen;
339	};
340
341	struct nfs_symlinkargs {
342	struct nfs_fh * fromfh;
343	const char * fromname;
344	unsigned int fromlen;
345	const char * topath;
346	unsigned int tolen;
347	struct iattr * sattr;
348	};
349
350	struct nfs_readdirargs {
351	struct nfs_fh * fh;
352	__u32 cookie;
353	unsigned int count;
354	struct page ** pages;
355	};
356
357	struct nfs_diropok {
358	struct nfs_fh * fh;
359	struct nfs_fattr * fattr;
360	};
361
362	struct nfs_readlinkargs {
363	struct nfs_fh * fh;
364	unsigned int pgbase;
365	unsigned int pglen;
366	struct page ** pages;
367	};
368
369	struct nfs3_sattrargs {
370	struct nfs_fh * fh;
371	struct iattr * sattr;
372	unsigned int guard;
373	struct timespec guardtime;
374	};
375
376	struct nfs3_diropargs {
377	struct nfs_fh * fh;
378	const char * name;
379	unsigned int len;
380	};
381
382	struct nfs3_accessargs {
383	struct nfs_fh * fh;
384	__u32 access;
385	};
386
387	struct nfs3_createargs {
388	struct nfs_fh * fh;
389	const char * name;
390	unsigned int len;
391	struct iattr * sattr;
392	enum nfs3_createmode createmode;
393	__u32 verifier[2];
394	};
395
396	struct nfs3_mkdirargs {
397	struct nfs_fh * fh;
398	const char * name;
399	unsigned int len;
400	struct iattr * sattr;
401	};
402
403	struct nfs3_symlinkargs {
404	struct nfs_fh * fromfh;
405	const char * fromname;
406	unsigned int fromlen;
407	const char * topath;
408	unsigned int tolen;
409	struct iattr * sattr;
410	};
411
412	struct nfs3_mknodargs {
413	struct nfs_fh * fh;
414	const char * name;
415	unsigned int len;
416	enum nfs3_ftype type;
417	struct iattr * sattr;
418	dev_t rdev;
419	};
420
421	struct nfs3_renameargs {
422	struct nfs_fh * fromfh;
423	const char * fromname;
424	unsigned int fromlen;
425	struct nfs_fh * tofh;
426	const char * toname;
427	unsigned int tolen;
428	};
429
430	struct nfs3_linkargs {
431	struct nfs_fh * fromfh;
432	struct nfs_fh * tofh;
433	const char * toname;
434	unsigned int tolen;
435	};
436
437	struct nfs3_readdirargs {
438	struct nfs_fh * fh;
439	__u64 cookie;
440	__u32 verf[2];
441	int plus;
442	unsigned int count;
443	struct page ** pages;
444	};
445
446	struct nfs3_diropres {
447	struct nfs_fattr * dir_attr;
448	struct nfs_fh * fh;
449	struct nfs_fattr * fattr;
450	};
451
452	struct nfs3_accessres {
453	struct nfs_fattr * fattr;
454	__u32 access;
455	};
456
457	struct nfs3_readlinkargs {
458	struct nfs_fh * fh;
459	unsigned int pgbase;
460	unsigned int pglen;
461	struct page ** pages;
462	};
463
464	struct nfs3_renameres {
465	struct nfs_fattr * fromattr;
466	struct nfs_fattr * toattr;
467	};
468
469	struct nfs3_linkres {
470	struct nfs_fattr * dir_attr;
471	struct nfs_fattr * fattr;
472	};
473
474	struct nfs3_readdirres {
475	struct nfs_fattr * dir_attr;
476	__u32 * verf;
477	int plus;
478	};
479
480	#ifdef CONFIG_NFS_V4
481
482	typedef u64 clientid4;
483
484	struct nfs4_accessargs {
485	const struct nfs_fh * fh;
486	u32 access;
487	};
488
489	struct nfs4_accessres {
490	u32 supported;
491	u32 access;
492	};
493
494	struct nfs4_create_arg {
495	u32 ftype;
496	union {
497	struct qstr * symlink; /* NF4LNK */
498	struct {
499	u32 specdata1;
500	u32 specdata2;
501	} device; /* NF4BLK, NF4CHR */
502	} u;
503	const struct qstr * name;
504	const struct nfs_server * server;
505	const struct iattr * attrs;
506	const struct nfs_fh * dir_fh;
507	const u32 * bitmask;
508	};
509
510	struct nfs4_create_res {
511	const struct nfs_server * server;
512	struct nfs_fh * fh;
513	struct nfs_fattr * fattr;
514	struct nfs4_change_info dir_cinfo;
515	};
516
517	struct nfs4_fsinfo_arg {
518	const struct nfs_fh * fh;
519	const u32 * bitmask;
520	};
521
522	struct nfs4_getattr_arg {
523	const struct nfs_fh * fh;
524	const u32 * bitmask;
525	};
526
527	struct nfs4_getattr_res {
528	const struct nfs_server * server;
529	struct nfs_fattr * fattr;
530	};
531
532	struct nfs4_link_arg {
533	const struct nfs_fh * fh;
534	const struct nfs_fh * dir_fh;
535	const struct qstr * name;
536	};
537
538	struct nfs4_lookup_arg {
539	const struct nfs_fh * dir_fh;
540	const struct qstr * name;
541	const u32 * bitmask;
542	};
543
544	struct nfs4_lookup_res {
545	const struct nfs_server * server;
546	struct nfs_fattr * fattr;
547	struct nfs_fh * fh;
548	};
549
550	struct nfs4_lookup_root_arg {
551	const u32 * bitmask;
552	};
553
554	struct nfs4_pathconf_arg {
555	const struct nfs_fh * fh;
556	const u32 * bitmask;
557	};
558
559	struct nfs4_readdir_arg {
560	const struct nfs_fh * fh;
561	u64 cookie;
562	nfs4_verifier verifier;
563	u32 count;
564	struct page ** pages; /* zero-copy data */
565	unsigned int pgbase; /* zero-copy data */
566	const u32 * bitmask;
567	};
568
569	struct nfs4_readdir_res {
570	nfs4_verifier verifier;
571	unsigned int pgbase;
572	};
573
574	struct nfs4_readlink {
575	const struct nfs_fh * fh;
576	unsigned int pgbase;
577	unsigned int pglen; /* zero-copy data */
578	struct page ** pages; /* zero-copy data */
579	};
580
581	struct nfs4_remove_arg {
582	const struct nfs_fh * fh;
583	const struct qstr * name;
584	};
585
586	struct nfs4_rename_arg {
587	const struct nfs_fh * old_dir;
588	const struct nfs_fh * new_dir;
589	const struct qstr * old_name;
590	const struct qstr * new_name;
591	};
592
593	struct nfs4_rename_res {
594	struct nfs4_change_info old_cinfo;
595	struct nfs4_change_info new_cinfo;
596	};
597
598	struct nfs4_setclientid {
599	const nfs4_verifier * sc_verifier; /* request */
600	unsigned int sc_name_len;
601	char sc_name[32]; /* request */
602	u32 sc_prog; /* request */
603	unsigned int sc_netid_len;
604	char sc_netid[4]; /* request */
605	unsigned int sc_uaddr_len;
606	char sc_uaddr[24]; /* request */
607	u32 sc_cb_ident; /* request */
608	};
609
610	struct nfs4_statfs_arg {
611	const struct nfs_fh * fh;
612	const u32 * bitmask;
613	};
614
615	struct nfs4_server_caps_res {
616	u32 attr_bitmask[2];
617	u32 acl_bitmask;
618	u32 has_links;
619	u32 has_symlinks;
620	};
621
622	#endif /* CONFIG_NFS_V4 */
623
624	struct nfs_page;
625
626	struct nfs_read_data {
627	int flags;
628	struct rpc_task task;
629	struct inode *inode;
630	struct rpc_cred *cred;
631	struct nfs_fattr fattr; /* fattr storage */
632	struct list_head pages; /* Coalesced read requests */
633	struct nfs_page req; / multi ops per nfs_page */
634	struct page *pagevec[NFS_READ_MAXIOV];
635	struct nfs_readargs args;
636	struct nfs_readres res;
637	#ifdef CONFIG_NFS_V4
638	unsigned long timestamp; /* For lease renewal */
639	#endif
640	void (complete) (struct nfs_read_data , int);
641	};
642
643	struct nfs_write_data {
644	int flags;
645	struct rpc_task task;
646	struct inode *inode;
647	struct rpc_cred *cred;
648	struct nfs_fattr fattr;
649	struct nfs_writeverf verf;
650	struct list_head pages; /* Coalesced requests we wish to flush */
651	struct nfs_page req; / multi ops per nfs_page */
652	struct page *pagevec[NFS_WRITE_MAXIOV];
653	struct nfs_writeargs args; /* argument struct */
654	struct nfs_writeres res; /* result struct */
655	#ifdef CONFIG_NFS_V4
656	unsigned long timestamp; /* For lease renewal */
657	#endif
658	void (complete) (struct nfs_write_data , int);
659	};
660
661	struct nfs_access_entry;
662
663	/*
664	* RPC procedure vector for NFSv2/NFSv3 demuxing
665	*/
666	struct nfs_rpc_ops {
667	int version; /* Protocol version */
668	struct dentry_operations *dentry_ops;
669	struct inode_operations *dir_inode_ops;
92cfc62c	670	struct inode_operations *file_inode_ops;
1da177e4 LT	671
	672	int (getroot) (struct nfs_server , struct nfs_fh *,
	673	struct nfs_fsinfo *);
	674	int (getattr) (struct nfs_server , struct nfs_fh *,
	675	struct nfs_fattr *);
	676	int (setattr) (struct dentry , struct nfs_fattr *,
	677	struct iattr *);
	678	int (lookup) (struct inode , struct qstr *,
	679	struct nfs_fh , struct nfs_fattr );
	680	int (access) (struct inode , struct nfs_access_entry *);
	681	int (readlink)(struct inode , struct page *, unsigned int,
	682	unsigned int);
	683	int (read) (struct nfs_read_data );
	684	int (write) (struct nfs_write_data );
	685	int (commit) (struct nfs_write_data );
	686	int (create) (struct inode , struct dentry *,
	687	struct iattr *, int);
	688	int (remove) (struct inode , struct qstr *);
	689	int (unlink_setup) (struct rpc_message ,
	690	struct dentry , struct qstr );
	691	int (unlink_done) (struct dentry , struct rpc_task *);
	692	int (rename) (struct inode , struct qstr *,
	693	struct inode , struct qstr );
	694	int (link) (struct inode , struct inode , struct qstr );
	695	int (symlink) (struct inode , struct qstr , struct qstr ,
	696	struct iattr , struct nfs_fh ,
	697	struct nfs_fattr *);
	698	int (mkdir) (struct inode , struct dentry , struct iattr );
	699	int (rmdir) (struct inode , struct qstr *);
	700	int (readdir) (struct dentry , struct rpc_cred *,
	701	u64, struct page *, unsigned int, int);
	702	int (mknod) (struct inode , struct dentry , struct iattr ,
	703	dev_t);
	704	int (statfs) (struct nfs_server , struct nfs_fh *,
	705	struct nfs_fsstat *);
	706	int (fsinfo) (struct nfs_server , struct nfs_fh *,
	707	struct nfs_fsinfo *);
	708	int (pathconf) (struct nfs_server , struct nfs_fh *,
	709	struct nfs_pathconf *);
	710	u32 * (decode_dirent)(u32 , struct nfs_entry *, int plus);
	711	void (read_setup) (struct nfs_read_data );
	712	void (write_setup) (struct nfs_write_data , int how);
	713	void (commit_setup) (struct nfs_write_data , int how);
	714	int (file_open) (struct inode , struct file *);
	715	int (file_release) (struct inode , struct file *);
	716	int (lock)(struct file , int, struct file_lock *);
	717	};
	718
	719	/*
	720	* NFS_CALL(getattr, inode, (fattr));
	721	* into
	722	* NFS_PROTO(inode)->getattr(fattr);
	723	*/
	724	#define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
	725
	726	/*
	727	* Function vectors etc. for the NFS client
	728	*/
	729	extern struct nfs_rpc_ops nfs_v2_clientops;
	730	extern struct nfs_rpc_ops nfs_v3_clientops;
	731	extern struct nfs_rpc_ops nfs_v4_clientops;
	732	extern struct rpc_version nfs_version2;
	733	extern struct rpc_version nfs_version3;
	734	extern struct rpc_version nfs_version4;
735
736	#endif