include/linux/nfsd/xdr.h

   1 /*
   2  * linux/inxlude/linux/nfsd/xdr.h
   3  *
   4  * XDR types for nfsd. This is mainly a typing exercise.
   5  */
   6
   7 #ifndef LINUX_NFSD_H
   8 #define LINUX_NFSD_H
   9
  10 #include <linux/fs.h>
  11 #include <linux/vfs.h>
  12 #include <linux/nfs.h>
  13
  14 struct nfsd_fhandle {
  15         struct svc_fh           fh;
  16 };
  17
  18 struct nfsd_sattrargs {
  19         struct svc_fh           fh;
  20         struct iattr            attrs;
  21 };
  22
  23 struct nfsd_diropargs {
  24         struct svc_fh           fh;
  25         char *                  name;
  26         int                     len;
  27 };
  28
  29 struct nfsd_readargs {
  30         struct svc_fh           fh;
  31         __u32                   offset;
  32         __u32                   count;
  33         struct kvec             vec[RPCSVC_MAXPAGES];
  34         int                     vlen;
  35 };
  36
  37 struct nfsd_writeargs {
  38         svc_fh                  fh;
  39         __u32                   offset;
  40         int                     len;
  41         struct kvec             vec[RPCSVC_MAXPAGES];
  42         int                     vlen;
  43 };
  44
  45 struct nfsd_createargs {
  46         struct svc_fh           fh;
  47         char *                  name;
  48         int                     len;
  49         struct iattr            attrs;
  50 };
  51
  52 struct nfsd_renameargs {
  53         struct svc_fh           ffh;
  54         char *                  fname;
  55         int                     flen;
  56         struct svc_fh           tfh;
  57         char *                  tname;
  58         int                     tlen;
  59 };
  60
  61 struct nfsd_readlinkargs {
  62         struct svc_fh           fh;
  63         char *                  buffer;
  64 };
  65
  66 struct nfsd_linkargs {
  67         struct svc_fh           ffh;
  68         struct svc_fh           tfh;
  69         char *                  tname;
  70         int                     tlen;
  71 };
  72
  73 struct nfsd_symlinkargs {
  74         struct svc_fh           ffh;
  75         char *                  fname;
  76         int                     flen;
  77         char *                  tname;
  78         int                     tlen;
  79         struct iattr            attrs;
  80 };
  81
  82 struct nfsd_readdirargs {
  83         struct svc_fh           fh;
  84         __u32                   cookie;
  85         __u32                   count;
  86         u32 *                   buffer;
  87 };
  88
  89 struct nfsd_attrstat {
  90         struct svc_fh           fh;
  91 };
  92
  93 struct nfsd_diropres  {
  94         struct svc_fh           fh;
  95 };
  96
  97 struct nfsd_readlinkres {
  98         int                     len;
  99 };
 100
 101 struct nfsd_readres {
 102         struct svc_fh           fh;
 103         unsigned long           count;
 104 };
 105
 106 struct nfsd_readdirres {
 107         int                     count;
 108
 109         struct readdir_cd       common;
 110         u32 *                   buffer;
 111         int                     buflen;
 112         u32 *                   offset;
 113 };
 114
 115 struct nfsd_statfsres {
 116         struct kstatfs          stats;
 117 };
 118
 119 /*
 120  * Storage requirements for XDR arguments and results.
 121  */
 122 union nfsd_xdrstore {
 123         struct nfsd_sattrargs   sattr;
 124         struct nfsd_diropargs   dirop;
 125         struct nfsd_readargs    read;
 126         struct nfsd_writeargs   write;
 127         struct nfsd_createargs  create;
 128         struct nfsd_renameargs  rename;
 129         struct nfsd_linkargs    link;
 130         struct nfsd_symlinkargs symlink;
 131         struct nfsd_readdirargs readdir;
 132 };
 133
 134 #define NFS2_SVC_XDRSIZE        sizeof(union nfsd_xdrstore)
 135
 136
 137 int nfssvc_decode_void(struct svc_rqst *, u32 *, void *);
 138 int nfssvc_decode_fhandle(struct svc_rqst *, u32 *, struct nfsd_fhandle *);
 139 int nfssvc_decode_sattrargs(struct svc_rqst *, u32 *,
 140                                 struct nfsd_sattrargs *);
 141 int nfssvc_decode_diropargs(struct svc_rqst *, u32 *,
 142                                 struct nfsd_diropargs *);
 143 int nfssvc_decode_readargs(struct svc_rqst *, u32 *,
 144                                 struct nfsd_readargs *);
 145 int nfssvc_decode_writeargs(struct svc_rqst *, u32 *,
 146                                 struct nfsd_writeargs *);
 147 int nfssvc_decode_createargs(struct svc_rqst *, u32 *,
 148                                 struct nfsd_createargs *);
 149 int nfssvc_decode_renameargs(struct svc_rqst *, u32 *,
 150                                 struct nfsd_renameargs *);
 151 int nfssvc_decode_readlinkargs(struct svc_rqst *, u32 *,
 152                                 struct nfsd_readlinkargs *);
 153 int nfssvc_decode_linkargs(struct svc_rqst *, u32 *,
 154                                 struct nfsd_linkargs *);
 155 int nfssvc_decode_symlinkargs(struct svc_rqst *, u32 *,
 156                                 struct nfsd_symlinkargs *);
 157 int nfssvc_decode_readdirargs(struct svc_rqst *, u32 *,
 158                                 struct nfsd_readdirargs *);
 159 int nfssvc_encode_void(struct svc_rqst *, u32 *, void *);
 160 int nfssvc_encode_attrstat(struct svc_rqst *, u32 *, struct nfsd_attrstat *);
 161 int nfssvc_encode_diropres(struct svc_rqst *, u32 *, struct nfsd_diropres *);
 162 int nfssvc_encode_readlinkres(struct svc_rqst *, u32 *, struct nfsd_readlinkres *);
 163 int nfssvc_encode_readres(struct svc_rqst *, u32 *, struct nfsd_readres *);
 164 int nfssvc_encode_statfsres(struct svc_rqst *, u32 *, struct nfsd_statfsres *);
 165 int nfssvc_encode_readdirres(struct svc_rqst *, u32 *, struct nfsd_readdirres *);
 166
 167 int nfssvc_encode_entry(struct readdir_cd *, const char *name,
 168                                 int namlen, loff_t offset, ino_t ino, unsigned int);
 169
 170 int nfssvc_release_fhandle(struct svc_rqst *, u32 *, struct nfsd_fhandle *);
 171
 172 /* Helper functions for NFSv2 ACL code */
 173 u32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp);
 174 u32 *nfs2svc_decode_fh(u32 *p, struct svc_fh *fhp);
 175
 176 #endif /* LINUX_NFSD_H */