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

#ifndef _LINUX_NFS_XDR_H
#define _LINUX_NFS_XDR_H

#include <linux/sunrpc/xprt.h>
#include <linux/nfsacl.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		time_start;
};

#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;
};

struct nfs_seqid;
/*
 * Arguments to the open call.
 */
struct nfs_openargs {
	const struct nfs_fh *	fh;
	struct nfs_seqid *	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;
	struct nfs_seqid *	seqid;
};

struct nfs_open_confirmres {
	nfs4_stateid            stateid;
};

/*
 * Arguments to the close call.
 */
struct nfs_closeargs {
	struct nfs_fh *         fh;
	nfs4_stateid *		stateid;
	struct nfs_seqid *	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_lock_opargs {
	struct nfs_seqid *	lock_seqid;
	nfs4_stateid *		lock_stateid;
	struct nfs_seqid *	open_seqid;
	nfs4_stateid *		open_stateid;
	struct nfs_lowner       lock_owner;
	__u32                   reclaim;
	__u32                   new_lock_owner;
};

struct nfs_locku_opargs {
	struct nfs_seqid *	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_setaclargs {
	struct nfs_fh *			fh;
	size_t				acl_len;
	unsigned int			acl_pgbase;
	struct page **			acl_pages;
};

struct nfs_getaclargs {
	struct nfs_fh *			fh;
	size_t				acl_len;
	unsigned int			acl_pgbase;
	struct page **			acl_pages;
};

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 nfs3_getaclargs {
	struct nfs_fh *		fh;
	int			mask;
	struct page **		pages;
};

struct nfs3_setaclargs {
	struct inode *		inode;
	int			mask;
	struct posix_acl *	acl_access;
	struct posix_acl *	acl_default;
	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;
};

struct nfs3_getaclres {
	struct nfs_fattr *	fattr;
	int			mask;
	unsigned int		acl_access_count;
	unsigned int		acl_default_count;
	struct posix_acl *	acl_access;
	struct posix_acl *	acl_default;
};

#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, struct nameidata *);
	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 *);
	void	(*clear_acl_cache)(struct inode *);
};

/*
 * 	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;

extern struct rpc_version	nfsacl_version3;
extern struct rpc_program	nfsacl_program;

#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>
b7fa0554	5	#include <linux/nfsacl.h>
1da177e4 LT	6
	7	struct nfs4_fsid {
	8	__u64 major;
	9	__u64 minor;
	10	};
	11
	12	struct nfs_fattr {
	13	unsigned short valid; /* which fields are valid */
	14	__u64 pre_size; /* pre_op_attr.size */
	15	struct timespec pre_mtime; /* pre_op_attr.mtime */
	16	struct timespec pre_ctime; /* pre_op_attr.ctime */
	17	enum nfs_ftype type; /* always use NFSv2 types */
	18	__u32 mode;
	19	__u32 nlink;
	20	__u32 uid;
	21	__u32 gid;
	22	__u64 size;
	23	union {
	24	struct {
	25	__u32 blocksize;
	26	__u32 blocks;
	27	} nfs2;
	28	struct {
	29	__u64 used;
	30	} nfs3;
	31	} du;
	32	dev_t rdev;
	33	union {
	34	__u64 nfs3; /* also nfs2 */
	35	struct nfs4_fsid nfs4;
	36	} fsid_u;
	37	__u64 fileid;
	38	struct timespec atime;
	39	struct timespec mtime;
	40	struct timespec ctime;
	41	__u32 bitmap[2]; /* NFSv4 returned attribute bitmap */
	42	__u64 change_attr; /* NFSv4 change attribute */
	43	__u64 pre_change_attr;/* pre-op NFSv4 change attribute */
33801147	44	unsigned long time_start;
1da177e4 LT	45	};
	46
	47	#define NFS_ATTR_WCC 0x0001 /* pre-op WCC data */
	48	#define NFS_ATTR_FATTR 0x0002 /* post-op attributes */
	49	#define NFS_ATTR_FATTR_V3 0x0004 /* NFSv3 attributes */
	50	#define NFS_ATTR_FATTR_V4 0x0008
	51	#define NFS_ATTR_PRE_CHANGE 0x0010
	52
	53	/*
	54	* Info on the file system
	55	*/
	56	struct nfs_fsinfo {
	57	struct nfs_fattr fattr; / Post-op attributes */
	58	__u32 rtmax; /* max. read transfer size */
	59	__u32 rtpref; /* pref. read transfer size */
	60	__u32 rtmult; /* reads should be multiple of this */
	61	__u32 wtmax; /* max. write transfer size */
	62	__u32 wtpref; /* pref. write transfer size */
	63	__u32 wtmult; /* writes should be multiple of this */
	64	__u32 dtpref; /* pref. readdir transfer size */
	65	__u64 maxfilesize;
	66	__u32 lease_time; /* in seconds */
	67	};
	68
	69	struct nfs_fsstat {
	70	struct nfs_fattr fattr; / Post-op attributes */
	71	__u64 tbytes; /* total size in bytes */
	72	__u64 fbytes; /* # of free bytes */
	73	__u64 abytes; /* # of bytes available to user */
	74	__u64 tfiles; /* # of files */
	75	__u64 ffiles; /* # of free files */
	76	__u64 afiles; /* # of files available to user */
	77	};
	78
	79	struct nfs2_fsstat {
	80	__u32 tsize; /* Server transfer size */
	81	__u32 bsize; /* Filesystem block size */
	82	__u32 blocks; /* No. of "bsize" blocks on filesystem */
	83	__u32 bfree; /* No. of free "bsize" blocks */
	84	__u32 bavail; /* No. of available "bsize" blocks */
	85	};
	86
	87	struct nfs_pathconf {
	88	struct nfs_fattr fattr; / Post-op attributes */
	89	__u32 max_link; /* max # of hard links */
	90	__u32 max_namelen; /* max name length */
	91	};
	92
	93	struct nfs4_change_info {
	94	u32 atomic;
	95	u64 before;
	96	u64 after;
	97	};
	98
cee54fc9	99	struct nfs_seqid;
1da177e4 LT	100	/*
	101	* Arguments to the open call.
	102	*/
	103	struct nfs_openargs {
	104	const struct nfs_fh * fh;
cee54fc9	105	struct nfs_seqid * seqid;
1da177e4 LT	106	int open_flags;
	107	__u64 clientid;
	108	__u32 id;
	109	union {
	110	struct iattr * attrs; /* UNCHECKED, GUARDED */
	111	nfs4_verifier verifier; /* EXCLUSIVE */
	112	nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
	113	int delegation_type; /* CLAIM_PREVIOUS */
	114	} u;
	115	const struct qstr * name;
	116	const struct nfs_server server; / Needed for ID mapping */
	117	const u32 * bitmask;
	118	__u32 claim;
	119	};
	120
	121	struct nfs_openres {
	122	nfs4_stateid stateid;
	123	struct nfs_fh fh;
	124	struct nfs4_change_info cinfo;
	125	__u32 rflags;
	126	struct nfs_fattr * f_attr;
	127	const struct nfs_server *server;
	128	int delegation_type;
	129	nfs4_stateid delegation;
	130	__u32 do_recall;
	131	__u64 maxsize;
	132	};
	133
	134	/*
	135	* Arguments to the open_confirm call.
	136	*/
	137	struct nfs_open_confirmargs {
	138	const struct nfs_fh * fh;
	139	nfs4_stateid stateid;
cee54fc9	140	struct nfs_seqid * seqid;
1da177e4 LT	141	};
	142
	143	struct nfs_open_confirmres {
	144	nfs4_stateid stateid;
	145	};
	146
	147	/*
	148	* Arguments to the close call.
	149	*/
	150	struct nfs_closeargs {
	151	struct nfs_fh * fh;
9512135d	152	nfs4_stateid * stateid;
cee54fc9	153	struct nfs_seqid * seqid;
1da177e4 LT	154	int open_flags;
	155	};
	156
	157	struct nfs_closeres {
	158	nfs4_stateid stateid;
	159	};
	160	/*
	161	* * Arguments to the lock,lockt, and locku call.
	162	* */
	163	struct nfs_lowner {
	164	__u64 clientid;
	165	u32 id;
	166	};
	167
06735b34	168	struct nfs_lock_opargs {
cee54fc9	169	struct nfs_seqid * lock_seqid;
06735b34 TM	170	nfs4_stateid * lock_stateid;
	171	struct nfs_seqid * open_seqid;
	172	nfs4_stateid * open_stateid;
1da177e4	173	struct nfs_lowner lock_owner;
1da177e4 LT	174	__u32 reclaim;
1da177e4 LT	175	__u32 new_lock_owner;
1da177e4 LT	176	};
	177
	178	struct nfs_locku_opargs {
cee54fc9	179	struct nfs_seqid * seqid;
faf5f49c	180	nfs4_stateid * stateid;
1da177e4 LT	181	};
	182
	183	struct nfs_lockargs {
	184	struct nfs_fh * fh;
	185	__u32 type;
	186	__u64 offset;
	187	__u64 length;
	188	union {
	189	struct nfs_lock_opargs lock; / LOCK */
	190	struct nfs_lowner lockt; / LOCKT */
	191	struct nfs_locku_opargs locku; / LOCKU */
	192	} u;
	193	};
	194
	195	struct nfs_lock_denied {
	196	__u64 offset;
	197	__u64 length;
	198	__u32 type;
	199	struct nfs_lowner owner;
	200	};
	201
	202	struct nfs_lockres {
	203	union {
	204	nfs4_stateid stateid;/* LOCK success, LOCKU */
	205	struct nfs_lock_denied denied; /* LOCK failed, LOCKT success */
	206	} u;
	207	const struct nfs_server * server;
	208	};
	209
	210	struct nfs4_delegreturnargs {
	211	const struct nfs_fh *fhandle;
	212	const nfs4_stateid *stateid;
	213	};
	214
	215	/*
	216	* Arguments to the read call.
	217	*/
	218
	219	#define NFS_READ_MAXIOV (9U)
	220	#if (NFS_READ_MAXIOV > (MAX_IOVEC -2))
	221	#error "NFS_READ_MAXIOV is too large"
	222	#endif
	223
	224	struct nfs_readargs {
	225	struct nfs_fh * fh;
	226	struct nfs_open_context *context;
	227	__u64 offset;
	228	__u32 count;
	229	unsigned int pgbase;
	230	struct page ** pages;
	231	};
	232
	233	struct nfs_readres {
	234	struct nfs_fattr * fattr;
	235	__u32 count;
	236	int eof;
	237	};
	238
	239	/*
	240	* Arguments to the write call.
	241	*/
	242	#define NFS_WRITE_MAXIOV (9U)
	243	#if (NFS_WRITE_MAXIOV > (MAX_IOVEC -2))
	244	#error "NFS_WRITE_MAXIOV is too large"
245	#endif
246
247	struct nfs_writeargs {
248	struct nfs_fh * fh;
249	struct nfs_open_context *context;
250	__u64 offset;
251	__u32 count;
252	enum nfs3_stable_how stable;
253	unsigned int pgbase;
254	struct page ** pages;
255	};
256
257	struct nfs_writeverf {
258	enum nfs3_stable_how committed;
259	__u32 verifier[2];
260	};
261
262	struct nfs_writeres {
263	struct nfs_fattr * fattr;
264	struct nfs_writeverf * verf;
265	__u32 count;
266	};
267
268	/*
269	* Argument struct for decode_entry function
270	*/
271	struct nfs_entry {
272	__u64 ino;
273	__u64 cookie,
274	prev_cookie;
275	const char * name;
276	unsigned int len;
277	int eof;
278	struct nfs_fh * fh;
279	struct nfs_fattr * fattr;
280	};
281
282	/*
283	* The following types are for NFSv2 only.
284	*/
285	struct nfs_sattrargs {
286	struct nfs_fh * fh;
287	struct iattr * sattr;
288	};
289
290	struct nfs_diropargs {
291	struct nfs_fh * fh;
292	const char * name;
293	unsigned int len;
294	};
295
296	struct nfs_createargs {
297	struct nfs_fh * fh;
298	const char * name;
299	unsigned int len;
300	struct iattr * sattr;
301	};
302
303	struct nfs_renameargs {
304	struct nfs_fh * fromfh;
305	const char * fromname;
306	unsigned int fromlen;
307	struct nfs_fh * tofh;
308	const char * toname;
309	unsigned int tolen;
310	};
311
312	struct nfs_setattrargs {
313	struct nfs_fh * fh;
314	nfs4_stateid stateid;
315	struct iattr * iap;
316	const struct nfs_server * server; /* Needed for name mapping */
317	const u32 * bitmask;
318	};
319
23ec6965 BF	320	struct nfs_setaclargs {
	321	struct nfs_fh * fh;
	322	size_t acl_len;
	323	unsigned int acl_pgbase;
	324	struct page ** acl_pages;
	325	};
	326
029d105e BF	327	struct nfs_getaclargs {
	328	struct nfs_fh * fh;
	329	size_t acl_len;
	330	unsigned int acl_pgbase;
	331	struct page ** acl_pages;
	332	};
	333
1da177e4 LT	334	struct nfs_setattrres {
	335	struct nfs_fattr * fattr;
	336	const struct nfs_server * server;
	337	};
	338
	339	struct nfs_linkargs {
	340	struct nfs_fh * fromfh;
	341	struct nfs_fh * tofh;
	342	const char * toname;
	343	unsigned int tolen;
	344	};
	345
	346	struct nfs_symlinkargs {
	347	struct nfs_fh * fromfh;
	348	const char * fromname;
	349	unsigned int fromlen;
	350	const char * topath;
	351	unsigned int tolen;
	352	struct iattr * sattr;
	353	};
	354
	355	struct nfs_readdirargs {
	356	struct nfs_fh * fh;
	357	__u32 cookie;
	358	unsigned int count;
	359	struct page ** pages;
	360	};
	361
b7fa0554 AG	362	struct nfs3_getaclargs {
	363	struct nfs_fh * fh;
	364	int mask;
	365	struct page ** pages;
	366	};
	367
	368	struct nfs3_setaclargs {
	369	struct inode * inode;
	370	int mask;
	371	struct posix_acl * acl_access;
	372	struct posix_acl * acl_default;
	373	struct page ** pages;
	374	};
	375
1da177e4 LT	376	struct nfs_diropok {
	377	struct nfs_fh * fh;
	378	struct nfs_fattr * fattr;
	379	};
	380
	381	struct nfs_readlinkargs {
	382	struct nfs_fh * fh;
	383	unsigned int pgbase;
	384	unsigned int pglen;
	385	struct page ** pages;
	386	};
	387
	388	struct nfs3_sattrargs {
	389	struct nfs_fh * fh;
	390	struct iattr * sattr;
	391	unsigned int guard;
	392	struct timespec guardtime;
	393	};
	394
	395	struct nfs3_diropargs {
	396	struct nfs_fh * fh;
	397	const char * name;
	398	unsigned int len;
	399	};
	400
	401	struct nfs3_accessargs {
	402	struct nfs_fh * fh;
	403	__u32 access;
	404	};
	405
	406	struct nfs3_createargs {
	407	struct nfs_fh * fh;
	408	const char * name;
	409	unsigned int len;
	410	struct iattr * sattr;
	411	enum nfs3_createmode createmode;
	412	__u32 verifier[2];
	413	};
	414
	415	struct nfs3_mkdirargs {
	416	struct nfs_fh * fh;
	417	const char * name;
	418	unsigned int len;
	419	struct iattr * sattr;
	420	};
	421
	422	struct nfs3_symlinkargs {
	423	struct nfs_fh * fromfh;
	424	const char * fromname;
	425	unsigned int fromlen;
	426	const char * topath;
	427	unsigned int tolen;
	428	struct iattr * sattr;
	429	};
	430
	431	struct nfs3_mknodargs {
	432	struct nfs_fh * fh;
	433	const char * name;
	434	unsigned int len;
	435	enum nfs3_ftype type;
	436	struct iattr * sattr;
	437	dev_t rdev;
	438	};
	439
440	struct nfs3_renameargs {
441	struct nfs_fh * fromfh;
442	const char * fromname;
443	unsigned int fromlen;
444	struct nfs_fh * tofh;
445	const char * toname;
446	unsigned int tolen;
447	};
448
449	struct nfs3_linkargs {
450	struct nfs_fh * fromfh;
451	struct nfs_fh * tofh;
452	const char * toname;
453	unsigned int tolen;
454	};
455
456	struct nfs3_readdirargs {
457	struct nfs_fh * fh;
458	__u64 cookie;
459	__u32 verf[2];
460	int plus;
461	unsigned int count;
462	struct page ** pages;
463	};
464
465	struct nfs3_diropres {
466	struct nfs_fattr * dir_attr;
467	struct nfs_fh * fh;
468	struct nfs_fattr * fattr;
469	};
470
471	struct nfs3_accessres {
472	struct nfs_fattr * fattr;
473	__u32 access;
474	};
475
476	struct nfs3_readlinkargs {
477	struct nfs_fh * fh;
478	unsigned int pgbase;
479	unsigned int pglen;
480	struct page ** pages;
481	};
482
483	struct nfs3_renameres {
484	struct nfs_fattr * fromattr;
485	struct nfs_fattr * toattr;
486	};
487
488	struct nfs3_linkres {
489	struct nfs_fattr * dir_attr;
490	struct nfs_fattr * fattr;
491	};
492
493	struct nfs3_readdirres {
494	struct nfs_fattr * dir_attr;
495	__u32 * verf;
496	int plus;
497	};
498
b7fa0554 AG	499	struct nfs3_getaclres {
	500	struct nfs_fattr * fattr;
	501	int mask;
	502	unsigned int acl_access_count;
	503	unsigned int acl_default_count;
	504	struct posix_acl * acl_access;
	505	struct posix_acl * acl_default;
	506	};
	507
1da177e4 LT	508	#ifdef CONFIG_NFS_V4
	509
	510	typedef u64 clientid4;
	511
	512	struct nfs4_accessargs {
	513	const struct nfs_fh * fh;
	514	u32 access;
	515	};
	516
	517	struct nfs4_accessres {
	518	u32 supported;
	519	u32 access;
	520	};
	521
	522	struct nfs4_create_arg {
	523	u32 ftype;
	524	union {
	525	struct qstr * symlink; /* NF4LNK */
	526	struct {
	527	u32 specdata1;
	528	u32 specdata2;
	529	} device; /* NF4BLK, NF4CHR */
	530	} u;
	531	const struct qstr * name;
	532	const struct nfs_server * server;
	533	const struct iattr * attrs;
	534	const struct nfs_fh * dir_fh;
	535	const u32 * bitmask;
	536	};
	537
	538	struct nfs4_create_res {
	539	const struct nfs_server * server;
	540	struct nfs_fh * fh;
	541	struct nfs_fattr * fattr;
	542	struct nfs4_change_info dir_cinfo;
	543	};
	544
	545	struct nfs4_fsinfo_arg {
	546	const struct nfs_fh * fh;
	547	const u32 * bitmask;
	548	};
	549
	550	struct nfs4_getattr_arg {
	551	const struct nfs_fh * fh;
	552	const u32 * bitmask;
	553	};
	554
	555	struct nfs4_getattr_res {
	556	const struct nfs_server * server;
	557	struct nfs_fattr * fattr;
	558	};
	559
	560	struct nfs4_link_arg {
	561	const struct nfs_fh * fh;
	562	const struct nfs_fh * dir_fh;
	563	const struct qstr * name;
	564	};
	565
	566	struct nfs4_lookup_arg {
	567	const struct nfs_fh * dir_fh;
	568	const struct qstr * name;
	569	const u32 * bitmask;
	570	};
	571
572	struct nfs4_lookup_res {
573	const struct nfs_server * server;
574	struct nfs_fattr * fattr;
575	struct nfs_fh * fh;
576	};
577
578	struct nfs4_lookup_root_arg {
579	const u32 * bitmask;
580	};
581
582	struct nfs4_pathconf_arg {
583	const struct nfs_fh * fh;
584	const u32 * bitmask;
585	};
586
587	struct nfs4_readdir_arg {
588	const struct nfs_fh * fh;
589	u64 cookie;
590	nfs4_verifier verifier;
591	u32 count;
592	struct page ** pages; /* zero-copy data */
593	unsigned int pgbase; /* zero-copy data */
594	const u32 * bitmask;
595	};
596
597	struct nfs4_readdir_res {
598	nfs4_verifier verifier;
599	unsigned int pgbase;
600	};
601
602	struct nfs4_readlink {
603	const struct nfs_fh * fh;
604	unsigned int pgbase;
605	unsigned int pglen; /* zero-copy data */
606	struct page ** pages; /* zero-copy data */
607	};
608
609	struct nfs4_remove_arg {
610	const struct nfs_fh * fh;
611	const struct qstr * name;
612	};
613
614	struct nfs4_rename_arg {
615	const struct nfs_fh * old_dir;
616	const struct nfs_fh * new_dir;
617	const struct qstr * old_name;
618	const struct qstr * new_name;
619	};
620
621	struct nfs4_rename_res {
622	struct nfs4_change_info old_cinfo;
623	struct nfs4_change_info new_cinfo;
624	};
625
626	struct nfs4_setclientid {
627	const nfs4_verifier * sc_verifier; /* request */
628	unsigned int sc_name_len;
629	char sc_name[32]; /* request */
630	u32 sc_prog; /* request */
631	unsigned int sc_netid_len;
632	char sc_netid[4]; /* request */
633	unsigned int sc_uaddr_len;
634	char sc_uaddr[24]; /* request */
635	u32 sc_cb_ident; /* request */
636	};
637
638	struct nfs4_statfs_arg {
639	const struct nfs_fh * fh;
640	const u32 * bitmask;
641	};
642
643	struct nfs4_server_caps_res {
644	u32 attr_bitmask[2];
645	u32 acl_bitmask;
646	u32 has_links;
647	u32 has_symlinks;
648	};
649
650	#endif /* CONFIG_NFS_V4 */
651
652	struct nfs_page;
653
654	struct nfs_read_data {
655	int flags;
656	struct rpc_task task;
657	struct inode *inode;
658	struct rpc_cred *cred;
659	struct nfs_fattr fattr; /* fattr storage */
660	struct list_head pages; /* Coalesced read requests */
661	struct nfs_page req; / multi ops per nfs_page */
662	struct page *pagevec[NFS_READ_MAXIOV];
663	struct nfs_readargs args;
664	struct nfs_readres res;
665	#ifdef CONFIG_NFS_V4
666	unsigned long timestamp; /* For lease renewal */
667	#endif
668	void (complete) (struct nfs_read_data , int);
669	};
670
671	struct nfs_write_data {
672	int flags;
673	struct rpc_task task;
674	struct inode *inode;
675	struct rpc_cred *cred;
676	struct nfs_fattr fattr;
677	struct nfs_writeverf verf;
678	struct list_head pages; /* Coalesced requests we wish to flush */
679	struct nfs_page req; / multi ops per nfs_page */
680	struct page *pagevec[NFS_WRITE_MAXIOV];
681	struct nfs_writeargs args; /* argument struct */
682	struct nfs_writeres res; /* result struct */
683	#ifdef CONFIG_NFS_V4
684	unsigned long timestamp; /* For lease renewal */
685	#endif
686	void (complete) (struct nfs_write_data , int);
687	};
688
689	struct nfs_access_entry;
690
691	/*
692	* RPC procedure vector for NFSv2/NFSv3 demuxing
693	*/
694	struct nfs_rpc_ops {
695	int version; /* Protocol version */
696	struct dentry_operations *dentry_ops;
697	struct inode_operations *dir_inode_ops;
92cfc62c	698	struct inode_operations *file_inode_ops;
1da177e4 LT	699
	700	int (getroot) (struct nfs_server , struct nfs_fh *,
	701	struct nfs_fsinfo *);
	702	int (getattr) (struct nfs_server , struct nfs_fh *,
	703	struct nfs_fattr *);
	704	int (setattr) (struct dentry , struct nfs_fattr *,
	705	struct iattr *);
	706	int (lookup) (struct inode , struct qstr *,
	707	struct nfs_fh , struct nfs_fattr );
	708	int (access) (struct inode , struct nfs_access_entry *);
	709	int (readlink)(struct inode , struct page *, unsigned int,
	710	unsigned int);
	711	int (read) (struct nfs_read_data );
	712	int (write) (struct nfs_write_data );
	713	int (commit) (struct nfs_write_data );
	714	int (create) (struct inode , struct dentry *,
02a913a7	715	struct iattr , int, struct nameidata );
1da177e4 LT	716	int (remove) (struct inode , struct qstr *);
	717	int (unlink_setup) (struct rpc_message ,
	718	struct dentry , struct qstr );
	719	int (unlink_done) (struct dentry , struct rpc_task *);
	720	int (rename) (struct inode , struct qstr *,
	721	struct inode , struct qstr );
	722	int (link) (struct inode , struct inode , struct qstr );
	723	int (symlink) (struct inode , struct qstr , struct qstr ,
	724	struct iattr , struct nfs_fh ,
	725	struct nfs_fattr *);
	726	int (mkdir) (struct inode , struct dentry , struct iattr );
	727	int (rmdir) (struct inode , struct qstr *);
	728	int (readdir) (struct dentry , struct rpc_cred *,
	729	u64, struct page *, unsigned int, int);
	730	int (mknod) (struct inode , struct dentry , struct iattr ,
	731	dev_t);
	732	int (statfs) (struct nfs_server , struct nfs_fh *,
	733	struct nfs_fsstat *);
	734	int (fsinfo) (struct nfs_server , struct nfs_fh *,
	735	struct nfs_fsinfo *);
	736	int (pathconf) (struct nfs_server , struct nfs_fh *,
	737	struct nfs_pathconf *);
	738	u32 * (decode_dirent)(u32 , struct nfs_entry *, int plus);
	739	void (read_setup) (struct nfs_read_data );
	740	void (write_setup) (struct nfs_write_data , int how);
	741	void (commit_setup) (struct nfs_write_data , int how);
	742	int (file_open) (struct inode , struct file *);
	743	int (file_release) (struct inode , struct file *);
	744	int (lock)(struct file , int, struct file_lock *);
ada70d94	745	void (clear_acl_cache)(struct inode );
1da177e4 LT	746	};
	747
	748	/*
	749	* NFS_CALL(getattr, inode, (fattr));
	750	* into
	751	* NFS_PROTO(inode)->getattr(fattr);
	752	*/
	753	#define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
	754
	755	/*
	756	* Function vectors etc. for the NFS client
	757	*/
	758	extern struct nfs_rpc_ops nfs_v2_clientops;
	759	extern struct nfs_rpc_ops nfs_v3_clientops;
	760	extern struct nfs_rpc_ops nfs_v4_clientops;
	761	extern struct rpc_version nfs_version2;
	762	extern struct rpc_version nfs_version3;
	763	extern struct rpc_version nfs_version4;
	764
b7fa0554 AG	765	extern struct rpc_version nfsacl_version3;
	766	extern struct rpc_program nfsacl_program;
	767
1da177e4	768	#endif