[mirror_ubuntu-bionic-kernel.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		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_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);
	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 */
	44	unsigned long timestamp;
	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
99	/*
100	* Arguments to the open call.
101	*/
102	struct nfs_openargs {
103	const struct nfs_fh * fh;
104	__u32 seqid;
105	int open_flags;
106	__u64 clientid;
107	__u32 id;
108	union {
109	struct iattr * attrs; /* UNCHECKED, GUARDED */
110	nfs4_verifier verifier; /* EXCLUSIVE */
111	nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
112	int delegation_type; /* CLAIM_PREVIOUS */
113	} u;
114	const struct qstr * name;
115	const struct nfs_server server; / Needed for ID mapping */
116	const u32 * bitmask;
117	__u32 claim;
118	};
119
120	struct nfs_openres {
121	nfs4_stateid stateid;
122	struct nfs_fh fh;
123	struct nfs4_change_info cinfo;
124	__u32 rflags;
125	struct nfs_fattr * f_attr;
126	const struct nfs_server *server;
127	int delegation_type;
128	nfs4_stateid delegation;
129	__u32 do_recall;
130	__u64 maxsize;
131	};
132
133	/*
134	* Arguments to the open_confirm call.
135	*/
136	struct nfs_open_confirmargs {
137	const struct nfs_fh * fh;
138	nfs4_stateid stateid;
139	__u32 seqid;
140	};
141
142	struct nfs_open_confirmres {
143	nfs4_stateid stateid;
144	};
145
146	/*
147	* Arguments to the close call.
148	*/
149	struct nfs_closeargs {
150	struct nfs_fh * fh;
151	nfs4_stateid stateid;
152	__u32 seqid;
153	int open_flags;
154	};
155
156	struct nfs_closeres {
157	nfs4_stateid stateid;
158	};
159	/*
160	* * Arguments to the lock,lockt, and locku call.
161	* */
162	struct nfs_lowner {
163	__u64 clientid;
164	u32 id;
165	};
166
167	struct nfs_open_to_lock {
168	__u32 open_seqid;
169	nfs4_stateid open_stateid;
170	__u32 lock_seqid;
171	struct nfs_lowner lock_owner;
172	};
173
174	struct nfs_exist_lock {
175	nfs4_stateid stateid;
176	__u32 seqid;
177	};
178
179	struct nfs_lock_opargs {
180	__u32 reclaim;
181	__u32 new_lock_owner;
182	union {
183	struct nfs_open_to_lock *open_lock;
184	struct nfs_exist_lock *exist_lock;
185	} u;
186	};
187
188	struct nfs_locku_opargs {
189	__u32 seqid;
190	nfs4_stateid stateid;
191	};
192
193	struct nfs_lockargs {
194	struct nfs_fh * fh;
195	__u32 type;
196	__u64 offset;
197	__u64 length;
198	union {
199	struct nfs_lock_opargs lock; / LOCK */
200	struct nfs_lowner lockt; / LOCKT */
201	struct nfs_locku_opargs locku; / LOCKU */
202	} u;
203	};
204
205	struct nfs_lock_denied {
206	__u64 offset;
207	__u64 length;
208	__u32 type;
209	struct nfs_lowner owner;
210	};
211
212	struct nfs_lockres {
213	union {
214	nfs4_stateid stateid;/* LOCK success, LOCKU */
215	struct nfs_lock_denied denied; /* LOCK failed, LOCKT success */
216	} u;
217	const struct nfs_server * server;
218	};
219
220	struct nfs4_delegreturnargs {
221	const struct nfs_fh *fhandle;
222	const nfs4_stateid *stateid;
223	};
224
225	/*
226	* Arguments to the read call.
227	*/
228
229	#define NFS_READ_MAXIOV (9U)
230	#if (NFS_READ_MAXIOV > (MAX_IOVEC -2))
231	#error "NFS_READ_MAXIOV is too large"
232	#endif
233
234	struct nfs_readargs {
235	struct nfs_fh * fh;
236	struct nfs_open_context *context;
237	__u64 offset;
238	__u32 count;
239	unsigned int pgbase;
240	struct page ** pages;
241	};
242
243	struct nfs_readres {
244	struct nfs_fattr * fattr;
245	__u32 count;
246	int eof;
247	};
248
249	/*
250	* Arguments to the write call.
251	*/
252	#define NFS_WRITE_MAXIOV (9U)
253	#if (NFS_WRITE_MAXIOV > (MAX_IOVEC -2))
254	#error "NFS_WRITE_MAXIOV is too large"
255	#endif
256
257	struct nfs_writeargs {
258	struct nfs_fh * fh;
259	struct nfs_open_context *context;
260	__u64 offset;
261	__u32 count;
262	enum nfs3_stable_how stable;
263	unsigned int pgbase;
264	struct page ** pages;
265	};
266
267	struct nfs_writeverf {
268	enum nfs3_stable_how committed;
269	__u32 verifier[2];
270	};
271
272	struct nfs_writeres {
273	struct nfs_fattr * fattr;
274	struct nfs_writeverf * verf;
275	__u32 count;
276	};
277
278	/*
279	* Argument struct for decode_entry function
280	*/
281	struct nfs_entry {
282	__u64 ino;
283	__u64 cookie,
284	prev_cookie;
285	const char * name;
286	unsigned int len;
287	int eof;
288	struct nfs_fh * fh;
289	struct nfs_fattr * fattr;
290	};
291
292	/*
293	* The following types are for NFSv2 only.
294	*/
295	struct nfs_sattrargs {
296	struct nfs_fh * fh;
297	struct iattr * sattr;
298	};
299
300	struct nfs_diropargs {
301	struct nfs_fh * fh;
302	const char * name;
303	unsigned int len;
304	};
305
306	struct nfs_createargs {
307	struct nfs_fh * fh;
308	const char * name;
309	unsigned int len;
310	struct iattr * sattr;
311	};
312
313	struct nfs_renameargs {
314	struct nfs_fh * fromfh;
315	const char * fromname;
316	unsigned int fromlen;
317	struct nfs_fh * tofh;
318	const char * toname;
319	unsigned int tolen;
320	};
321
322	struct nfs_setattrargs {
323	struct nfs_fh * fh;
324	nfs4_stateid stateid;
325	struct iattr * iap;
326	const struct nfs_server * server; /* Needed for name mapping */
327	const u32 * bitmask;
328	};
329
23ec6965 BF	330	struct nfs_setaclargs {
	331	struct nfs_fh * fh;
	332	size_t acl_len;
	333	unsigned int acl_pgbase;
	334	struct page ** acl_pages;
	335	};
	336
029d105e BF	337	struct nfs_getaclargs {
	338	struct nfs_fh * fh;
	339	size_t acl_len;
	340	unsigned int acl_pgbase;
	341	struct page ** acl_pages;
	342	};
	343
1da177e4 LT	344	struct nfs_setattrres {
	345	struct nfs_fattr * fattr;
	346	const struct nfs_server * server;
	347	};
	348
	349	struct nfs_linkargs {
	350	struct nfs_fh * fromfh;
	351	struct nfs_fh * tofh;
	352	const char * toname;
	353	unsigned int tolen;
	354	};
	355
	356	struct nfs_symlinkargs {
	357	struct nfs_fh * fromfh;
	358	const char * fromname;
	359	unsigned int fromlen;
	360	const char * topath;
	361	unsigned int tolen;
	362	struct iattr * sattr;
	363	};
	364
	365	struct nfs_readdirargs {
	366	struct nfs_fh * fh;
	367	__u32 cookie;
	368	unsigned int count;
	369	struct page ** pages;
	370	};
	371
b7fa0554 AG	372	struct nfs3_getaclargs {
	373	struct nfs_fh * fh;
	374	int mask;
	375	struct page ** pages;
	376	};
	377
	378	struct nfs3_setaclargs {
	379	struct inode * inode;
	380	int mask;
	381	struct posix_acl * acl_access;
	382	struct posix_acl * acl_default;
	383	struct page ** pages;
	384	};
	385
1da177e4 LT	386	struct nfs_diropok {
	387	struct nfs_fh * fh;
	388	struct nfs_fattr * fattr;
	389	};
	390
	391	struct nfs_readlinkargs {
	392	struct nfs_fh * fh;
	393	unsigned int pgbase;
	394	unsigned int pglen;
	395	struct page ** pages;
	396	};
	397
	398	struct nfs3_sattrargs {
	399	struct nfs_fh * fh;
	400	struct iattr * sattr;
	401	unsigned int guard;
	402	struct timespec guardtime;
	403	};
	404
	405	struct nfs3_diropargs {
	406	struct nfs_fh * fh;
	407	const char * name;
	408	unsigned int len;
	409	};
	410
	411	struct nfs3_accessargs {
	412	struct nfs_fh * fh;
	413	__u32 access;
	414	};
	415
	416	struct nfs3_createargs {
	417	struct nfs_fh * fh;
	418	const char * name;
	419	unsigned int len;
	420	struct iattr * sattr;
	421	enum nfs3_createmode createmode;
	422	__u32 verifier[2];
	423	};
	424
	425	struct nfs3_mkdirargs {
	426	struct nfs_fh * fh;
	427	const char * name;
	428	unsigned int len;
	429	struct iattr * sattr;
	430	};
	431
	432	struct nfs3_symlinkargs {
	433	struct nfs_fh * fromfh;
	434	const char * fromname;
	435	unsigned int fromlen;
	436	const char * topath;
	437	unsigned int tolen;
	438	struct iattr * sattr;
	439	};
	440
	441	struct nfs3_mknodargs {
	442	struct nfs_fh * fh;
	443	const char * name;
	444	unsigned int len;
	445	enum nfs3_ftype type;
	446	struct iattr * sattr;
	447	dev_t rdev;
	448	};
	449
450	struct nfs3_renameargs {
451	struct nfs_fh * fromfh;
452	const char * fromname;
453	unsigned int fromlen;
454	struct nfs_fh * tofh;
455	const char * toname;
456	unsigned int tolen;
457	};
458
459	struct nfs3_linkargs {
460	struct nfs_fh * fromfh;
461	struct nfs_fh * tofh;
462	const char * toname;
463	unsigned int tolen;
464	};
465
466	struct nfs3_readdirargs {
467	struct nfs_fh * fh;
468	__u64 cookie;
469	__u32 verf[2];
470	int plus;
471	unsigned int count;
472	struct page ** pages;
473	};
474
475	struct nfs3_diropres {
476	struct nfs_fattr * dir_attr;
477	struct nfs_fh * fh;
478	struct nfs_fattr * fattr;
479	};
480
481	struct nfs3_accessres {
482	struct nfs_fattr * fattr;
483	__u32 access;
484	};
485
486	struct nfs3_readlinkargs {
487	struct nfs_fh * fh;
488	unsigned int pgbase;
489	unsigned int pglen;
490	struct page ** pages;
491	};
492
493	struct nfs3_renameres {
494	struct nfs_fattr * fromattr;
495	struct nfs_fattr * toattr;
496	};
497
498	struct nfs3_linkres {
499	struct nfs_fattr * dir_attr;
500	struct nfs_fattr * fattr;
501	};
502
503	struct nfs3_readdirres {
504	struct nfs_fattr * dir_attr;
505	__u32 * verf;
506	int plus;
507	};
508
b7fa0554 AG	509	struct nfs3_getaclres {
	510	struct nfs_fattr * fattr;
	511	int mask;
	512	unsigned int acl_access_count;
	513	unsigned int acl_default_count;
	514	struct posix_acl * acl_access;
	515	struct posix_acl * acl_default;
	516	};
	517
1da177e4 LT	518	#ifdef CONFIG_NFS_V4
	519
	520	typedef u64 clientid4;
	521
	522	struct nfs4_accessargs {
	523	const struct nfs_fh * fh;
	524	u32 access;
	525	};
	526
	527	struct nfs4_accessres {
	528	u32 supported;
	529	u32 access;
	530	};
	531
	532	struct nfs4_create_arg {
	533	u32 ftype;
	534	union {
	535	struct qstr * symlink; /* NF4LNK */
	536	struct {
	537	u32 specdata1;
	538	u32 specdata2;
	539	} device; /* NF4BLK, NF4CHR */
	540	} u;
	541	const struct qstr * name;
	542	const struct nfs_server * server;
	543	const struct iattr * attrs;
	544	const struct nfs_fh * dir_fh;
	545	const u32 * bitmask;
	546	};
	547
	548	struct nfs4_create_res {
	549	const struct nfs_server * server;
	550	struct nfs_fh * fh;
	551	struct nfs_fattr * fattr;
	552	struct nfs4_change_info dir_cinfo;
	553	};
	554
	555	struct nfs4_fsinfo_arg {
	556	const struct nfs_fh * fh;
	557	const u32 * bitmask;
	558	};
	559
	560	struct nfs4_getattr_arg {
	561	const struct nfs_fh * fh;
	562	const u32 * bitmask;
	563	};
	564
	565	struct nfs4_getattr_res {
	566	const struct nfs_server * server;
	567	struct nfs_fattr * fattr;
	568	};
	569
	570	struct nfs4_link_arg {
	571	const struct nfs_fh * fh;
	572	const struct nfs_fh * dir_fh;
	573	const struct qstr * name;
	574	};
	575
	576	struct nfs4_lookup_arg {
	577	const struct nfs_fh * dir_fh;
	578	const struct qstr * name;
	579	const u32 * bitmask;
	580	};
	581
582	struct nfs4_lookup_res {
583	const struct nfs_server * server;
584	struct nfs_fattr * fattr;
585	struct nfs_fh * fh;
586	};
587
588	struct nfs4_lookup_root_arg {
589	const u32 * bitmask;
590	};
591
592	struct nfs4_pathconf_arg {
593	const struct nfs_fh * fh;
594	const u32 * bitmask;
595	};
596
597	struct nfs4_readdir_arg {
598	const struct nfs_fh * fh;
599	u64 cookie;
600	nfs4_verifier verifier;
601	u32 count;
602	struct page ** pages; /* zero-copy data */
603	unsigned int pgbase; /* zero-copy data */
604	const u32 * bitmask;
605	};
606
607	struct nfs4_readdir_res {
608	nfs4_verifier verifier;
609	unsigned int pgbase;
610	};
611
612	struct nfs4_readlink {
613	const struct nfs_fh * fh;
614	unsigned int pgbase;
615	unsigned int pglen; /* zero-copy data */
616	struct page ** pages; /* zero-copy data */
617	};
618
619	struct nfs4_remove_arg {
620	const struct nfs_fh * fh;
621	const struct qstr * name;
622	};
623
624	struct nfs4_rename_arg {
625	const struct nfs_fh * old_dir;
626	const struct nfs_fh * new_dir;
627	const struct qstr * old_name;
628	const struct qstr * new_name;
629	};
630
631	struct nfs4_rename_res {
632	struct nfs4_change_info old_cinfo;
633	struct nfs4_change_info new_cinfo;
634	};
635
636	struct nfs4_setclientid {
637	const nfs4_verifier * sc_verifier; /* request */
638	unsigned int sc_name_len;
639	char sc_name[32]; /* request */
640	u32 sc_prog; /* request */
641	unsigned int sc_netid_len;
642	char sc_netid[4]; /* request */
643	unsigned int sc_uaddr_len;
644	char sc_uaddr[24]; /* request */
645	u32 sc_cb_ident; /* request */
646	};
647
648	struct nfs4_statfs_arg {
649	const struct nfs_fh * fh;
650	const u32 * bitmask;
651	};
652
653	struct nfs4_server_caps_res {
654	u32 attr_bitmask[2];
655	u32 acl_bitmask;
656	u32 has_links;
657	u32 has_symlinks;
658	};
659
660	#endif /* CONFIG_NFS_V4 */
661
662	struct nfs_page;
663
664	struct nfs_read_data {
665	int flags;
666	struct rpc_task task;
667	struct inode *inode;
668	struct rpc_cred *cred;
669	struct nfs_fattr fattr; /* fattr storage */
670	struct list_head pages; /* Coalesced read requests */
671	struct nfs_page req; / multi ops per nfs_page */
672	struct page *pagevec[NFS_READ_MAXIOV];
673	struct nfs_readargs args;
674	struct nfs_readres res;
675	#ifdef CONFIG_NFS_V4
676	unsigned long timestamp; /* For lease renewal */
677	#endif
678	void (complete) (struct nfs_read_data , int);
679	};
680
681	struct nfs_write_data {
682	int flags;
683	struct rpc_task task;
684	struct inode *inode;
685	struct rpc_cred *cred;
686	struct nfs_fattr fattr;
687	struct nfs_writeverf verf;
688	struct list_head pages; /* Coalesced requests we wish to flush */
689	struct nfs_page req; / multi ops per nfs_page */
690	struct page *pagevec[NFS_WRITE_MAXIOV];
691	struct nfs_writeargs args; /* argument struct */
692	struct nfs_writeres res; /* result struct */
693	#ifdef CONFIG_NFS_V4
694	unsigned long timestamp; /* For lease renewal */
695	#endif
696	void (complete) (struct nfs_write_data , int);
697	};
698
699	struct nfs_access_entry;
700
701	/*
702	* RPC procedure vector for NFSv2/NFSv3 demuxing
703	*/
704	struct nfs_rpc_ops {
705	int version; /* Protocol version */
706	struct dentry_operations *dentry_ops;
707	struct inode_operations *dir_inode_ops;
92cfc62c	708	struct inode_operations *file_inode_ops;
1da177e4 LT	709
	710	int (getroot) (struct nfs_server , struct nfs_fh *,
	711	struct nfs_fsinfo *);
	712	int (getattr) (struct nfs_server , struct nfs_fh *,
	713	struct nfs_fattr *);
	714	int (setattr) (struct dentry , struct nfs_fattr *,
	715	struct iattr *);
	716	int (lookup) (struct inode , struct qstr *,
	717	struct nfs_fh , struct nfs_fattr );
	718	int (access) (struct inode , struct nfs_access_entry *);
	719	int (readlink)(struct inode , struct page *, unsigned int,
	720	unsigned int);
	721	int (read) (struct nfs_read_data );
	722	int (write) (struct nfs_write_data );
	723	int (commit) (struct nfs_write_data );
	724	int (create) (struct inode , struct dentry *,
	725	struct iattr *, int);
	726	int (remove) (struct inode , struct qstr *);
	727	int (unlink_setup) (struct rpc_message ,
	728	struct dentry , struct qstr );
	729	int (unlink_done) (struct dentry , struct rpc_task *);
	730	int (rename) (struct inode , struct qstr *,
	731	struct inode , struct qstr );
	732	int (link) (struct inode , struct inode , struct qstr );
	733	int (symlink) (struct inode , struct qstr , struct qstr ,
	734	struct iattr , struct nfs_fh ,
	735	struct nfs_fattr *);
	736	int (mkdir) (struct inode , struct dentry , struct iattr );
	737	int (rmdir) (struct inode , struct qstr *);
	738	int (readdir) (struct dentry , struct rpc_cred *,
	739	u64, struct page *, unsigned int, int);
	740	int (mknod) (struct inode , struct dentry , struct iattr ,
	741	dev_t);
	742	int (statfs) (struct nfs_server , struct nfs_fh *,
	743	struct nfs_fsstat *);
	744	int (fsinfo) (struct nfs_server , struct nfs_fh *,
	745	struct nfs_fsinfo *);
	746	int (pathconf) (struct nfs_server , struct nfs_fh *,
	747	struct nfs_pathconf *);
	748	u32 * (decode_dirent)(u32 , struct nfs_entry *, int plus);
	749	void (read_setup) (struct nfs_read_data );
	750	void (write_setup) (struct nfs_write_data , int how);
	751	void (commit_setup) (struct nfs_write_data , int how);
	752	int (file_open) (struct inode , struct file *);
	753	int (file_release) (struct inode , struct file *);
	754	int (lock)(struct file , int, struct file_lock *);
ada70d94	755	void (clear_acl_cache)(struct inode );
1da177e4 LT	756	};
	757
	758	/*
	759	* NFS_CALL(getattr, inode, (fattr));
	760	* into
	761	* NFS_PROTO(inode)->getattr(fattr);
	762	*/
	763	#define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
	764
	765	/*
	766	* Function vectors etc. for the NFS client
	767	*/
	768	extern struct nfs_rpc_ops nfs_v2_clientops;
	769	extern struct nfs_rpc_ops nfs_v3_clientops;
	770	extern struct nfs_rpc_ops nfs_v4_clientops;
	771	extern struct rpc_version nfs_version2;
	772	extern struct rpc_version nfs_version3;
	773	extern struct rpc_version nfs_version4;
	774
b7fa0554 AG	775	extern struct rpc_version nfsacl_version3;
	776	extern struct rpc_program nfsacl_program;
	777
1da177e4	778	#endif