linux/fs/nfsd/xdr.h
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   1/* XDR types for nfsd. This is mainly a typing exercise. */
   2
   3#ifndef LINUX_NFSD_H
   4#define LINUX_NFSD_H
   5
   6#include <linux/vfs.h>
   7#include "nfsd.h"
   8#include "nfsfh.h"
   9
  10struct nfsd_fhandle {
  11        struct svc_fh           fh;
  12};
  13
  14struct nfsd_sattrargs {
  15        struct svc_fh           fh;
  16        struct iattr            attrs;
  17};
  18
  19struct nfsd_diropargs {
  20        struct svc_fh           fh;
  21        char *                  name;
  22        unsigned int            len;
  23};
  24
  25struct nfsd_readargs {
  26        struct svc_fh           fh;
  27        __u32                   offset;
  28        __u32                   count;
  29        int                     vlen;
  30};
  31
  32struct nfsd_writeargs {
  33        svc_fh                  fh;
  34        __u32                   offset;
  35        int                     len;
  36        int                     vlen;
  37};
  38
  39struct nfsd_createargs {
  40        struct svc_fh           fh;
  41        char *                  name;
  42        unsigned int            len;
  43        struct iattr            attrs;
  44};
  45
  46struct nfsd_renameargs {
  47        struct svc_fh           ffh;
  48        char *                  fname;
  49        unsigned int            flen;
  50        struct svc_fh           tfh;
  51        char *                  tname;
  52        unsigned int            tlen;
  53};
  54
  55struct nfsd_readlinkargs {
  56        struct svc_fh           fh;
  57        char *                  buffer;
  58};
  59        
  60struct nfsd_linkargs {
  61        struct svc_fh           ffh;
  62        struct svc_fh           tfh;
  63        char *                  tname;
  64        unsigned int            tlen;
  65};
  66
  67struct nfsd_symlinkargs {
  68        struct svc_fh           ffh;
  69        char *                  fname;
  70        unsigned int            flen;
  71        char *                  tname;
  72        unsigned int            tlen;
  73        struct iattr            attrs;
  74};
  75
  76struct nfsd_readdirargs {
  77        struct svc_fh           fh;
  78        __u32                   cookie;
  79        __u32                   count;
  80        __be32 *                buffer;
  81};
  82
  83struct nfsd_attrstat {
  84        struct svc_fh           fh;
  85        struct kstat            stat;
  86};
  87
  88struct nfsd_diropres  {
  89        struct svc_fh           fh;
  90        struct kstat            stat;
  91};
  92
  93struct nfsd_readlinkres {
  94        int                     len;
  95};
  96
  97struct nfsd_readres {
  98        struct svc_fh           fh;
  99        unsigned long           count;
 100        struct kstat            stat;
 101};
 102
 103struct nfsd_readdirres {
 104        int                     count;
 105
 106        struct readdir_cd       common;
 107        __be32 *                buffer;
 108        int                     buflen;
 109        __be32 *                offset;
 110};
 111
 112struct nfsd_statfsres {
 113        struct kstatfs          stats;
 114};
 115
 116/*
 117 * Storage requirements for XDR arguments and results.
 118 */
 119union nfsd_xdrstore {
 120        struct nfsd_sattrargs   sattr;
 121        struct nfsd_diropargs   dirop;
 122        struct nfsd_readargs    read;
 123        struct nfsd_writeargs   write;
 124        struct nfsd_createargs  create;
 125        struct nfsd_renameargs  rename;
 126        struct nfsd_linkargs    link;
 127        struct nfsd_symlinkargs symlink;
 128        struct nfsd_readdirargs readdir;
 129};
 130
 131#define NFS2_SVC_XDRSIZE        sizeof(union nfsd_xdrstore)
 132
 133
 134int nfssvc_decode_void(struct svc_rqst *, __be32 *, void *);
 135int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
 136int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *,
 137                                struct nfsd_sattrargs *);
 138int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *,
 139                                struct nfsd_diropargs *);
 140int nfssvc_decode_readargs(struct svc_rqst *, __be32 *,
 141                                struct nfsd_readargs *);
 142int nfssvc_decode_writeargs(struct svc_rqst *, __be32 *,
 143                                struct nfsd_writeargs *);
 144int nfssvc_decode_createargs(struct svc_rqst *, __be32 *,
 145                                struct nfsd_createargs *);
 146int nfssvc_decode_renameargs(struct svc_rqst *, __be32 *,
 147                                struct nfsd_renameargs *);
 148int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *,
 149                                struct nfsd_readlinkargs *);
 150int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *,
 151                                struct nfsd_linkargs *);
 152int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *,
 153                                struct nfsd_symlinkargs *);
 154int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *,
 155                                struct nfsd_readdirargs *);
 156int nfssvc_encode_void(struct svc_rqst *, __be32 *, void *);
 157int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *, struct nfsd_attrstat *);
 158int nfssvc_encode_diropres(struct svc_rqst *, __be32 *, struct nfsd_diropres *);
 159int nfssvc_encode_readlinkres(struct svc_rqst *, __be32 *, struct nfsd_readlinkres *);
 160int nfssvc_encode_readres(struct svc_rqst *, __be32 *, struct nfsd_readres *);
 161int nfssvc_encode_statfsres(struct svc_rqst *, __be32 *, struct nfsd_statfsres *);
 162int nfssvc_encode_readdirres(struct svc_rqst *, __be32 *, struct nfsd_readdirres *);
 163
 164int nfssvc_encode_entry(void *, const char *name,
 165                        int namlen, loff_t offset, u64 ino, unsigned int);
 166
 167int nfssvc_release_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
 168
 169/* Helper functions for NFSv2 ACL code */
 170__be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp, struct kstat *stat);
 171__be32 *nfs2svc_decode_fh(__be32 *p, struct svc_fh *fhp);
 172
 173#endif /* LINUX_NFSD_H */
 174
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