source: svn/trunk/newcon3bcm2_21bu/toolchain/mips-linux-uclibc/include/linux/nfs_xdr.h

#ifndef _LINUX_NFS_XDR_H
#define _LINUX_NFS_XDR_H

#include <asm/types.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 */



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

struct nfs_access_entry;

/*
 * 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