include/linux/nfsd/xdr.h

   1 /*
   2  * linux/include/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         unsigned int            len;
  27 };
  28
  29 struct nfsd_readargs {
  30         struct svc_fh           fh;
  31         __u32                   offset;
  32         __u32                   count;
  33         int                     vlen;
  34 };
  35
  36 struct nfsd_writeargs {
  37         svc_fh                  fh;
  38         __u32                   offset;
  39         int                     len;
  40         int                     vlen;
  41 };
  42
  43 struct nfsd_createargs {
  44         struct svc_fh           fh;
  45         char *                  name;
  46         unsigned int            len;
  47         struct iattr            attrs;
  48 };
  49
  50 struct nfsd_renameargs {
  51         struct svc_fh           ffh;
  52         char *                  fname;
  53         unsigned int            flen;
  54         struct svc_fh           tfh;
  55         char *                  tname;
  56         unsigned int            tlen;
  57 };
  58
  59 struct nfsd_readlinkargs {
  60         struct svc_fh           fh;
  61         char *                  buffer;
  62 };
  63
  64 struct nfsd_linkargs {
  65         struct svc_fh           ffh;
  66         struct svc_fh           tfh;
  67         char *                  tname;
  68         unsigned int            tlen;
  69 };
  70
  71 struct nfsd_symlinkargs {
  72         struct svc_fh           ffh;
  73         char *                  fname;
  74         unsigned int            flen;
  75         char *                  tname;
  76         unsigned int            tlen;
  77         struct iattr            attrs;
  78 };
  79
  80 struct nfsd_readdirargs {
  81         struct svc_fh           fh;
  82         __u32                   cookie;
  83         __u32                   count;
  84         __be32 *                buffer;
  85 };
  86
  87 struct nfsd_attrstat {
  88         struct svc_fh           fh;
  89         struct kstat            stat;
  90 };
  91
  92 struct nfsd_diropres  {
  93         struct svc_fh           fh;
  94         struct kstat            stat;
  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         struct kstat            stat;
 105 };
 106
 107 struct nfsd_readdirres {
 108         int                     count;
 109
 110         struct readdir_cd       common;
 111         __be32 *                buffer;
 112         int                     buflen;
 113         __be32 *                offset;
 114 };
 115
 116 struct nfsd_statfsres {
 117         struct kstatfs          stats;
 118 };
 119
 120 /*
 121  * Storage requirements for XDR arguments and results.
 122  */
 123 union nfsd_xdrstore {
 124         struct nfsd_sattrargs   sattr;
 125         struct nfsd_diropargs   dirop;
 126         struct nfsd_readargs    read;
 127         struct nfsd_writeargs   write;
 128         struct nfsd_createargs  create;
 129         struct nfsd_renameargs  rename;
 130         struct nfsd_linkargs    link;
 131         struct nfsd_symlinkargs symlink;
 132         struct nfsd_readdirargs readdir;
 133 };
 134
 135 #define NFS2_SVC_XDRSIZE        sizeof(union nfsd_xdrstore)
 136
 137
 138 int nfssvc_decode_void(struct svc_rqst *, __be32 *, void *);
 139 int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
 140 int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *,
 141                                 struct nfsd_sattrargs *);
 142 int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *,
 143                                 struct nfsd_diropargs *);
 144 int nfssvc_decode_readargs(struct svc_rqst *, __be32 *,
 145                                 struct nfsd_readargs *);
 146 int nfssvc_decode_writeargs(struct svc_rqst *, __be32 *,
 147                                 struct nfsd_writeargs *);
 148 int nfssvc_decode_createargs(struct svc_rqst *, __be32 *,
 149                                 struct nfsd_createargs *);
 150 int nfssvc_decode_renameargs(struct svc_rqst *, __be32 *,
 151                                 struct nfsd_renameargs *);
 152 int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *,
 153                                 struct nfsd_readlinkargs *);
 154 int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *,
 155                                 struct nfsd_linkargs *);
 156 int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *,
 157                                 struct nfsd_symlinkargs *);
 158 int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *,
 159                                 struct nfsd_readdirargs *);
 160 int nfssvc_encode_void(struct svc_rqst *, __be32 *, void *);
 161 int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *, struct nfsd_attrstat *);
 162 int nfssvc_encode_diropres(struct svc_rqst *, __be32 *, struct nfsd_diropres *);
 163 int nfssvc_encode_readlinkres(struct svc_rqst *, __be32 *, struct nfsd_readlinkres *);
 164 int nfssvc_encode_readres(struct svc_rqst *, __be32 *, struct nfsd_readres *);
 165 int nfssvc_encode_statfsres(struct svc_rqst *, __be32 *, struct nfsd_statfsres *);
 166 int nfssvc_encode_readdirres(struct svc_rqst *, __be32 *, struct nfsd_readdirres *);
 167
 168 int nfssvc_encode_entry(void *, const char *name,
 169                         int namlen, loff_t offset, u64 ino, unsigned int);
 170
 171 int nfssvc_release_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
 172
 173 /* Helper functions for NFSv2 ACL code */
 174 __be32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp);
 175 __be32 *nfs2svc_decode_fh(__be32 *p, struct svc_fh *fhp);
 176
 177 #endif /* LINUX_NFSD_H */