fs/nfsd/xdr.h

   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
  10 struct nfsd_fhandle {
  11         struct svc_fh           fh;
  12 };
  13
  14 struct nfsd_sattrargs {
  15         struct svc_fh           fh;
  16         struct iattr            attrs;
  17 };
  18
  19 struct nfsd_diropargs {
  20         struct svc_fh           fh;
  21         char *                  name;
  22         unsigned int            len;
  23 };
  24
  25 struct nfsd_readargs {
  26         struct svc_fh           fh;
  27         __u32                   offset;
  28         __u32                   count;
  29         int                     vlen;
  30 };
  31
  32 struct nfsd_writeargs {
  33         svc_fh                  fh;
  34         __u32                   offset;
  35         int                     len;
  36         int                     vlen;
  37 };
  38
  39 struct nfsd_createargs {
  40         struct svc_fh           fh;
  41         char *                  name;
  42         unsigned int            len;
  43         struct iattr            attrs;
  44 };
  45
  46 struct 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
  55 struct nfsd_readlinkargs {
  56         struct svc_fh           fh;
  57         char *                  buffer;
  58 };
  59
  60 struct nfsd_linkargs {
  61         struct svc_fh           ffh;
  62         struct svc_fh           tfh;
  63         char *                  tname;
  64         unsigned int            tlen;
  65 };
  66
  67 struct 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
  76 struct nfsd_readdirargs {
  77         struct svc_fh           fh;
  78         __u32                   cookie;
  79         __u32                   count;
  80         __be32 *                buffer;
  81 };
  82
  83 struct nfsd_attrstat {
  84         struct svc_fh           fh;
  85         struct kstat            stat;
  86 };
  87
  88 struct nfsd_diropres  {
  89         struct svc_fh           fh;
  90         struct kstat            stat;
  91 };
  92
  93 struct nfsd_readlinkres {
  94         int                     len;
  95 };
  96
  97 struct nfsd_readres {
  98         struct svc_fh           fh;
  99         unsigned long           count;
 100         struct kstat            stat;
 101 };
 102
 103 struct nfsd_readdirres {
 104         int                     count;
 105
 106         struct readdir_cd       common;
 107         __be32 *                buffer;
 108         int                     buflen;
 109         __be32 *                offset;
 110 };
 111
 112 struct nfsd_statfsres {
 113         struct kstatfs          stats;
 114 };
 115
 116 /*
 117  * Storage requirements for XDR arguments and results.
 118  */
 119 union 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
 134 int nfssvc_decode_void(struct svc_rqst *, __be32 *, void *);
 135 int nfssvc_decode_fhandle(struct svc_rqst *, __be32 *, struct nfsd_fhandle *);
 136 int nfssvc_decode_sattrargs(struct svc_rqst *, __be32 *,
 137                                 struct nfsd_sattrargs *);
 138 int nfssvc_decode_diropargs(struct svc_rqst *, __be32 *,
 139                                 struct nfsd_diropargs *);
 140 int nfssvc_decode_readargs(struct svc_rqst *, __be32 *,
 141                                 struct nfsd_readargs *);
 142 int nfssvc_decode_writeargs(struct svc_rqst *, __be32 *,
 143                                 struct nfsd_writeargs *);
 144 int nfssvc_decode_createargs(struct svc_rqst *, __be32 *,
 145                                 struct nfsd_createargs *);
 146 int nfssvc_decode_renameargs(struct svc_rqst *, __be32 *,
 147                                 struct nfsd_renameargs *);
 148 int nfssvc_decode_readlinkargs(struct svc_rqst *, __be32 *,
 149                                 struct nfsd_readlinkargs *);
 150 int nfssvc_decode_linkargs(struct svc_rqst *, __be32 *,
 151                                 struct nfsd_linkargs *);
 152 int nfssvc_decode_symlinkargs(struct svc_rqst *, __be32 *,
 153                                 struct nfsd_symlinkargs *);
 154 int nfssvc_decode_readdirargs(struct svc_rqst *, __be32 *,
 155                                 struct nfsd_readdirargs *);
 156 int nfssvc_encode_void(struct svc_rqst *, __be32 *, void *);
 157 int nfssvc_encode_attrstat(struct svc_rqst *, __be32 *, struct nfsd_attrstat *);
 158 int nfssvc_encode_diropres(struct svc_rqst *, __be32 *, struct nfsd_diropres *);
 159 int nfssvc_encode_readlinkres(struct svc_rqst *, __be32 *, struct nfsd_readlinkres *);
 160 int nfssvc_encode_readres(struct svc_rqst *, __be32 *, struct nfsd_readres *);
 161 int nfssvc_encode_statfsres(struct svc_rqst *, __be32 *, struct nfsd_statfsres *);
 162 int nfssvc_encode_readdirres(struct svc_rqst *, __be32 *, struct nfsd_readdirres *);
 163
 164 int nfssvc_encode_entry(void *, const char *name,
 165                         int namlen, loff_t offset, u64 ino, unsigned int);
 166
 167 int 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);
 171 __be32 *nfs2svc_decode_fh(__be32 *p, struct svc_fh *fhp);
 172
 173 #endif /* LINUX_NFSD_H */