fs/nfsd/xdr3.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * XDR types for NFSv3 in nfsd.
   4  *
   5  * Copyright (C) 1996-1998, Olaf Kirch <okir@monad.swb.de>
   6  */
   7
   8 #ifndef _LINUX_NFSD_XDR3_H
   9 #define _LINUX_NFSD_XDR3_H
  10
  11 #include "xdr.h"
  12
  13 struct nfsd3_sattrargs {
  14         struct svc_fh           fh;
  15         struct iattr            attrs;
  16         int                     check_guard;
  17         time_t                  guardtime;
  18 };
  19
  20 struct nfsd3_diropargs {
  21         struct svc_fh           fh;
  22         char *                  name;
  23         unsigned int            len;
  24 };
  25
  26 struct nfsd3_accessargs {
  27         struct svc_fh           fh;
  28         unsigned int            access;
  29 };
  30
  31 struct nfsd3_readargs {
  32         struct svc_fh           fh;
  33         __u64                   offset;
  34         __u32                   count;
  35         int                     vlen;
  36 };
  37
  38 struct nfsd3_writeargs {
  39         svc_fh                  fh;
  40         __u64                   offset;
  41         __u32                   count;
  42         int                     stable;
  43         __u32                   len;
  44         int                     vlen;
  45 };
  46
  47 struct nfsd3_createargs {
  48         struct svc_fh           fh;
  49         char *                  name;
  50         unsigned int            len;
  51         int                     createmode;
  52         struct iattr            attrs;
  53         __be32 *                verf;
  54 };
  55
  56 struct nfsd3_mknodargs {
  57         struct svc_fh           fh;
  58         char *                  name;
  59         unsigned int            len;
  60         __u32                   ftype;
  61         __u32                   major, minor;
  62         struct iattr            attrs;
  63 };
  64
  65 struct nfsd3_renameargs {
  66         struct svc_fh           ffh;
  67         char *                  fname;
  68         unsigned int            flen;
  69         struct svc_fh           tfh;
  70         char *                  tname;
  71         unsigned int            tlen;
  72 };
  73
  74 struct nfsd3_readlinkargs {
  75         struct svc_fh           fh;
  76         char *                  buffer;
  77 };
  78
  79 struct nfsd3_linkargs {
  80         struct svc_fh           ffh;
  81         struct svc_fh           tfh;
  82         char *                  tname;
  83         unsigned int            tlen;
  84 };
  85
  86 struct nfsd3_symlinkargs {
  87         struct svc_fh           ffh;
  88         char *                  fname;
  89         unsigned int            flen;
  90         char *                  tname;
  91         unsigned int            tlen;
  92         struct iattr            attrs;
  93 };
  94
  95 struct nfsd3_readdirargs {
  96         struct svc_fh           fh;
  97         __u64                   cookie;
  98         __u32                   dircount;
  99         __u32                   count;
 100         __be32 *                verf;
 101         __be32 *                buffer;
 102 };
 103
 104 struct nfsd3_commitargs {
 105         struct svc_fh           fh;
 106         __u64                   offset;
 107         __u32                   count;
 108 };
 109
 110 struct nfsd3_getaclargs {
 111         struct svc_fh           fh;
 112         int                     mask;
 113 };
 114
 115 struct posix_acl;
 116 struct nfsd3_setaclargs {
 117         struct svc_fh           fh;
 118         int                     mask;
 119         struct posix_acl        *acl_access;
 120         struct posix_acl        *acl_default;
 121 };
 122
 123 struct nfsd3_attrstat {
 124         __be32                  status;
 125         struct svc_fh           fh;
 126         struct kstat            stat;
 127 };
 128
 129 /* LOOKUP, CREATE, MKDIR, SYMLINK, MKNOD */
 130 struct nfsd3_diropres  {
 131         __be32                  status;
 132         struct svc_fh           dirfh;
 133         struct svc_fh           fh;
 134 };
 135
 136 struct nfsd3_accessres {
 137         __be32                  status;
 138         struct svc_fh           fh;
 139         __u32                   access;
 140         struct kstat            stat;
 141 };
 142
 143 struct nfsd3_readlinkres {
 144         __be32                  status;
 145         struct svc_fh           fh;
 146         __u32                   len;
 147 };
 148
 149 struct nfsd3_readres {
 150         __be32                  status;
 151         struct svc_fh           fh;
 152         unsigned long           count;
 153         int                     eof;
 154 };
 155
 156 struct nfsd3_writeres {
 157         __be32                  status;
 158         struct svc_fh           fh;
 159         unsigned long           count;
 160         int                     committed;
 161 };
 162
 163 struct nfsd3_renameres {
 164         __be32                  status;
 165         struct svc_fh           ffh;
 166         struct svc_fh           tfh;
 167 };
 168
 169 struct nfsd3_linkres {
 170         __be32                  status;
 171         struct svc_fh           tfh;
 172         struct svc_fh           fh;
 173 };
 174
 175 struct nfsd3_readdirres {
 176         __be32                  status;
 177         struct svc_fh           fh;
 178         /* Just to save kmalloc on every readdirplus entry (svc_fh is a
 179          * little large for the stack): */
 180         struct svc_fh           scratch;
 181         int                     count;
 182         __be32                  verf[2];
 183
 184         struct readdir_cd       common;
 185         __be32 *                buffer;
 186         int                     buflen;
 187         __be32 *                offset;
 188         __be32 *                offset1;
 189         struct svc_rqst *       rqstp;
 190
 191 };
 192
 193 struct nfsd3_fsstatres {
 194         __be32                  status;
 195         struct kstatfs          stats;
 196         __u32                   invarsec;
 197 };
 198
 199 struct nfsd3_fsinfores {
 200         __be32                  status;
 201         __u32                   f_rtmax;
 202         __u32                   f_rtpref;
 203         __u32                   f_rtmult;
 204         __u32                   f_wtmax;
 205         __u32                   f_wtpref;
 206         __u32                   f_wtmult;
 207         __u32                   f_dtpref;
 208         __u64                   f_maxfilesize;
 209         __u32                   f_properties;
 210 };
 211
 212 struct nfsd3_pathconfres {
 213         __be32                  status;
 214         __u32                   p_link_max;
 215         __u32                   p_name_max;
 216         __u32                   p_no_trunc;
 217         __u32                   p_chown_restricted;
 218         __u32                   p_case_insensitive;
 219         __u32                   p_case_preserving;
 220 };
 221
 222 struct nfsd3_commitres {
 223         __be32                  status;
 224         struct svc_fh           fh;
 225 };
 226
 227 struct nfsd3_getaclres {
 228         __be32                  status;
 229         struct svc_fh           fh;
 230         int                     mask;
 231         struct posix_acl        *acl_access;
 232         struct posix_acl        *acl_default;
 233         struct kstat            stat;
 234 };
 235
 236 /* dummy type for release */
 237 struct nfsd3_fhandle_pair {
 238         __u32                   dummy;
 239         struct svc_fh           fh1;
 240         struct svc_fh           fh2;
 241 };
 242
 243 /*
 244  * Storage requirements for XDR arguments and results.
 245  */
 246 union nfsd3_xdrstore {
 247         struct nfsd3_sattrargs          sattrargs;
 248         struct nfsd3_diropargs          diropargs;
 249         struct nfsd3_readargs           readargs;
 250         struct nfsd3_writeargs          writeargs;
 251         struct nfsd3_createargs         createargs;
 252         struct nfsd3_renameargs         renameargs;
 253         struct nfsd3_linkargs           linkargs;
 254         struct nfsd3_symlinkargs        symlinkargs;
 255         struct nfsd3_readdirargs        readdirargs;
 256         struct nfsd3_diropres           diropres;
 257         struct nfsd3_accessres          accessres;
 258         struct nfsd3_readlinkres        readlinkres;
 259         struct nfsd3_readres            readres;
 260         struct nfsd3_writeres           writeres;
 261         struct nfsd3_renameres          renameres;
 262         struct nfsd3_linkres            linkres;
 263         struct nfsd3_readdirres         readdirres;
 264         struct nfsd3_fsstatres          fsstatres;
 265         struct nfsd3_fsinfores          fsinfores;
 266         struct nfsd3_pathconfres        pathconfres;
 267         struct nfsd3_commitres          commitres;
 268         struct nfsd3_getaclres          getaclres;
 269 };
 270
 271 #define NFS3_SVC_XDRSIZE                sizeof(union nfsd3_xdrstore)
 272
 273 int nfs3svc_decode_fhandle(struct svc_rqst *, __be32 *);
 274 int nfs3svc_decode_sattrargs(struct svc_rqst *, __be32 *);
 275 int nfs3svc_decode_diropargs(struct svc_rqst *, __be32 *);
 276 int nfs3svc_decode_accessargs(struct svc_rqst *, __be32 *);
 277 int nfs3svc_decode_readargs(struct svc_rqst *, __be32 *);
 278 int nfs3svc_decode_writeargs(struct svc_rqst *, __be32 *);
 279 int nfs3svc_decode_createargs(struct svc_rqst *, __be32 *);
 280 int nfs3svc_decode_mkdirargs(struct svc_rqst *, __be32 *);
 281 int nfs3svc_decode_mknodargs(struct svc_rqst *, __be32 *);
 282 int nfs3svc_decode_renameargs(struct svc_rqst *, __be32 *);
 283 int nfs3svc_decode_readlinkargs(struct svc_rqst *, __be32 *);
 284 int nfs3svc_decode_linkargs(struct svc_rqst *, __be32 *);
 285 int nfs3svc_decode_symlinkargs(struct svc_rqst *, __be32 *);
 286 int nfs3svc_decode_readdirargs(struct svc_rqst *, __be32 *);
 287 int nfs3svc_decode_readdirplusargs(struct svc_rqst *, __be32 *);
 288 int nfs3svc_decode_commitargs(struct svc_rqst *, __be32 *);
 289 int nfs3svc_encode_voidres(struct svc_rqst *, __be32 *);
 290 int nfs3svc_encode_attrstat(struct svc_rqst *, __be32 *);
 291 int nfs3svc_encode_wccstat(struct svc_rqst *, __be32 *);
 292 int nfs3svc_encode_diropres(struct svc_rqst *, __be32 *);
 293 int nfs3svc_encode_accessres(struct svc_rqst *, __be32 *);
 294 int nfs3svc_encode_readlinkres(struct svc_rqst *, __be32 *);
 295 int nfs3svc_encode_readres(struct svc_rqst *, __be32 *);
 296 int nfs3svc_encode_writeres(struct svc_rqst *, __be32 *);
 297 int nfs3svc_encode_createres(struct svc_rqst *, __be32 *);
 298 int nfs3svc_encode_renameres(struct svc_rqst *, __be32 *);
 299 int nfs3svc_encode_linkres(struct svc_rqst *, __be32 *);
 300 int nfs3svc_encode_readdirres(struct svc_rqst *, __be32 *);
 301 int nfs3svc_encode_fsstatres(struct svc_rqst *, __be32 *);
 302 int nfs3svc_encode_fsinfores(struct svc_rqst *, __be32 *);
 303 int nfs3svc_encode_pathconfres(struct svc_rqst *, __be32 *);
 304 int nfs3svc_encode_commitres(struct svc_rqst *, __be32 *);
 305
 306 void nfs3svc_release_fhandle(struct svc_rqst *);
 307 void nfs3svc_release_fhandle2(struct svc_rqst *);
 308 int nfs3svc_encode_entry(void *, const char *name,
 309                                 int namlen, loff_t offset, u64 ino,
 310                                 unsigned int);
 311 int nfs3svc_encode_entry_plus(void *, const char *name,
 312                                 int namlen, loff_t offset, u64 ino,
 313                                 unsigned int);
 314 /* Helper functions for NFSv3 ACL code */
 315 __be32 *nfs3svc_encode_post_op_attr(struct svc_rqst *rqstp, __be32 *p,
 316                                 struct svc_fh *fhp);
 317 __be32 *nfs3svc_decode_fh(__be32 *p, struct svc_fh *fhp);
 318
 319
 320 #endif /* _LINUX_NFSD_XDR3_H */