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#ifndef _LINUX_NFS_XDR_H
#define _LINUX_NFS_XDR_H
#include <linux/sunrpc/xprt.h>
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 {
__u64 major;
__u64 minor;
} 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 */
};
/*
* Arguments to the open call.
*/
struct nfs_openargs {
struct nfs_fh * fh;
__u32 seqid;
__u32 share_access;
__u64 clientid;
__u32 id;
__u32 opentype;
__u32 createmode;
union {
struct iattr * attrs; /* UNCHECKED, GUARDED */
nfs4_verifier verifier; /* EXCLUSIVE */
} u;
struct qstr * name;
struct nfs4_getattr * f_getattr;
struct nfs4_getattr * d_getattr;
struct nfs_server * server; /* Needed for ID mapping */
};
struct nfs_openres {
__u32 status;
nfs4_stateid stateid;
struct nfs_fh fh;
struct nfs4_change_info * cinfo;
__u32 rflags;
struct nfs4_getattr * f_getattr;
struct nfs4_getattr * d_getattr;
struct nfs_server * server;
};
/*
* Arguments to the open_confirm call.
*/
struct nfs_open_confirmargs {
struct nfs_fh * fh;
nfs4_stateid stateid;
__u32 seqid;
};
struct nfs_open_confirmres {
__u32 status;
nfs4_stateid stateid;
};
/*
* Arguments to the close call.
*/
struct nfs_closeargs {
struct nfs_fh * fh;
nfs4_stateid stateid;
__u32 seqid;
};
struct nfs_closeres {
__u32 status;
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;
nfs4_stateid stateid;
__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;
nfs4_stateid stateid;
__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;
struct nfs4_getattr * attr;
struct nfs_server * server; /* Needed for name mapping */
};
struct nfs_setattrres {
struct nfs4_getattr * attr;
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 count;
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 count;
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_change_info {
u32 atomic;
u64 before;
u64 after;
};
struct nfs4_access {
u32 ac_req_access; /* request */
u32 * ac_resp_supported; /* response */
u32 * ac_resp_access; /* response */
};
struct nfs4_close {
char * cl_stateid; /* request */
u32 cl_seqid; /* request */
};
struct nfs4_create {
u32 cr_ftype; /* request */
union { /* request */
struct {
u32 textlen;
const char * text;
} symlink; /* NF4LNK */
struct {
u32 specdata1;
u32 specdata2;
} device; /* NF4BLK, NF4CHR */
} u;
u32 cr_namelen; /* request */
const char * cr_name; /* request */
struct iattr * cr_attrs; /* request */
struct nfs4_change_info * cr_cinfo; /* response */
};
#define cr_textlen u.symlink.textlen
#define cr_text u.symlink.text
#define cr_specdata1 u.device.specdata1
#define cr_specdata2 u.device.specdata2
struct nfs4_getattr {
u32 * gt_bmval; /* request */
struct nfs_fattr * gt_attrs; /* response */
struct nfs_fsstat * gt_fsstat; /* response */
struct nfs_fsinfo * gt_fsinfo; /* response */
struct nfs_pathconf * gt_pathconf; /* response */
};
struct nfs4_getfh {
struct nfs_fh * gf_fhandle; /* response */
};
struct nfs4_link {
u32 ln_namelen; /* request */
const char * ln_name; /* request */
struct nfs4_change_info * ln_cinfo; /* response */
};
struct nfs4_lookup {
struct qstr * lo_name; /* request */
};
struct nfs4_open {
struct nfs4_client * op_client_state; /* request */
u32 op_share_access; /* request */
u32 op_opentype; /* request */
u32 op_createmode; /* request */
union { /* request */
struct iattr * attrs; /* UNCHECKED, GUARDED */
nfs4_verifier verifier; /* EXCLUSIVE */
} u;
struct qstr * op_name; /* request */
char * op_stateid; /* response */
struct nfs4_change_info * op_cinfo; /* response */
u32 * op_rflags; /* response */
};
#define op_attrs u.attrs
#define op_verifier u.verifier
struct nfs4_open_confirm {
char * oc_stateid; /* request */
};
struct nfs4_putfh {
struct nfs_fh * pf_fhandle; /* request */
};
struct nfs4_readdir {
u64 rd_cookie; /* request */
nfs4_verifier rd_req_verifier; /* request */
u32 rd_count; /* request */
u32 rd_bmval[2]; /* request */
nfs4_verifier rd_resp_verifier; /* response */
struct page ** rd_pages; /* zero-copy data */
unsigned int rd_pgbase; /* zero-copy data */
};
struct nfs4_readlink {
u32 rl_count; /* zero-copy data */
struct page ** rl_pages; /* zero-copy data */
};
struct nfs4_remove {
u32 rm_namelen; /* request */
const char * rm_name; /* request */
struct nfs4_change_info * rm_cinfo; /* response */
};
struct nfs4_rename {
u32 rn_oldnamelen; /* request */
const char * rn_oldname; /* request */
u32 rn_newnamelen; /* request */
const char * rn_newname; /* request */
struct nfs4_change_info * rn_src_cinfo; /* response */
struct nfs4_change_info * rn_dst_cinfo; /* response */
};
struct nfs4_setattr {
char * st_stateid; /* request */
struct iattr * st_iap; /* request */
};
struct nfs4_setclientid {
nfs4_verifier sc_verifier; /* request */
char * sc_name; /* request */
u32 sc_prog; /* request */
char sc_netid[4]; /* request */
char sc_uaddr[24]; /* request */
u32 sc_cb_ident; /* request */
struct nfs4_client * sc_state; /* response */
};
struct nfs4_op {
u32 opnum;
union {
struct nfs4_access access;
struct nfs4_close close;
struct nfs4_create create;
struct nfs4_getattr getattr;
struct nfs4_getfh getfh;
struct nfs4_link link;
struct nfs4_lookup lookup;
struct nfs4_open open;
struct nfs4_open_confirm open_confirm;
struct nfs4_putfh putfh;
struct nfs4_readdir readdir;
struct nfs4_readlink readlink;
struct nfs4_remove remove;
struct nfs4_rename rename;
struct nfs4_client * renew;
struct nfs4_setattr setattr;
struct nfs4_setclientid setclientid;
struct nfs4_client * setclientid_confirm;
} u;
};
struct nfs4_compound {
unsigned int flags; /* defined below */
struct nfs_server * server;
/* RENEW information */
int renew_index;
unsigned long timestamp;
/* scratch variables for XDR encode/decode */
int nops;
u32 * p;
u32 * end;
/* the individual COMPOUND operations */
struct nfs4_op *ops;
/* request */
int req_nops;
u32 taglen;
char * tag;
/* response */
int resp_nops;
int toplevel_status;
};
#endif /* CONFIG_NFS_V4 */
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 page *pagevec[NFS_READ_MAXIOV];
struct nfs_readargs args;
struct nfs_readres res;
#ifdef CONFIG_NFS_V4
unsigned long timestamp; /* For lease renewal */
#endif
};
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 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
};
struct nfs_page;
/*
* RPC procedure vector for NFSv2/NFSv3 demuxing
*/
struct nfs_rpc_ops {
int version; /* Protocol version */
int (*getroot) (struct nfs_server *, struct nfs_fh *,
struct nfs_fattr *);
int (*getattr) (struct inode *, 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 rpc_cred *, int);
int (*readlink)(struct inode *, struct page *);
int (*read) (struct nfs_read_data *, struct file *);
int (*write) (struct nfs_write_data *, struct file *);
int (*commit) (struct nfs_write_data *, struct file *);
struct inode * (*create) (struct inode *, struct qstr *,
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 qstr *, struct iattr *,
struct nfs_fh *, struct nfs_fattr *);
int (*rmdir) (struct inode *, struct qstr *);
int (*readdir) (struct dentry *, struct rpc_cred *,
u64, struct page *, unsigned int, int);
int (*mknod) (struct inode *, struct qstr *, struct iattr *,
dev_t, struct nfs_fh *, struct nfs_fattr *);
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 *, unsigned int count);
void (*write_setup) (struct nfs_write_data *, unsigned int count, int how);
void (*commit_setup) (struct nfs_write_data *, u64 start, u32 len, int how);
int (*file_open) (struct inode *, struct file *);
int (*file_release) (struct inode *, struct file *);
void (*request_init)(struct nfs_page *, struct file *);
int (*request_compatible)(struct nfs_page *, struct file *, struct page *);
};
/*
* 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_program nfs_program;
extern struct rpc_stat nfs_rpcstat;
#endif