include/linux/nfs_xdr.h

   1 #ifndef _LINUX_NFS_XDR_H
   2 #define _LINUX_NFS_XDR_H
   3
   4 extern struct rpc_program       nfs_program;
   5 extern struct rpc_stat          nfs_rpcstat;
   6
   7 struct nfs_fattr {
   8         unsigned short          valid;          /* which fields are valid */
   9         __u64                   pre_size;       /* pre_op_attr.size       */
  10         __u64                   pre_mtime;      /* pre_op_attr.mtime      */
  11         __u64                   pre_ctime;      /* pre_op_attr.ctime      */
  12         enum nfs_ftype          type;           /* always use NFSv2 types */
  13         __u32                   mode;
  14         __u32                   nlink;
  15         __u32                   uid;
  16         __u32                   gid;
  17         __u64                   size;
  18         union {
  19                 struct {
  20                         __u32   blocksize;
  21                         __u32   blocks;
  22                 } nfs2;
  23                 struct {
  24                         __u64   used;
  25                 } nfs3;
  26         } du;
  27         __u32                   rdev;
  28         __u64                   fsid;
  29         __u64                   fileid;
  30         __u64                   atime;
  31         __u64                   mtime;
  32         __u64                   ctime;
  33 };
  34
  35 #define NFS_ATTR_WCC            0x0001          /* pre-op WCC data    */
  36 #define NFS_ATTR_FATTR          0x0002          /* post-op attributes */
  37 #define NFS_ATTR_FATTR_V3       0x0004          /* NFSv3 attributes */
  38
  39 /*
  40  * Info on the file system
  41  */
  42 struct nfs_fsinfo {
  43         __u32                   rtmax;  /* max.  read transfer size */
  44         __u32                   rtpref; /* pref. read transfer size */
  45         __u32                   rtmult; /* reads should be multiple of this */
  46         __u32                   wtmax;  /* max.  write transfer size */
  47         __u32                   wtpref; /* pref. write transfer size */
  48         __u32                   wtmult; /* writes should be multiple of this */
  49         __u32                   dtpref; /* pref. readdir transfer size */
  50         __u64                   maxfilesize;
  51         __u64                   bsize;  /* block size */
  52         __u64                   tbytes; /* total size in bytes */
  53         __u64                   fbytes; /* # of free bytes */
  54         __u64                   abytes; /* # of bytes available to user */
  55         __u64                   tfiles; /* # of files */
  56         __u64                   ffiles; /* # of free files */
  57         __u64                   afiles; /* # of files available to user */
  58         __u32                   linkmax;/* max # of hard links */
  59         __u32                   namelen;/* max name length */
  60 };
  61
  62 /* Arguments to the read call.
  63  * Note that NFS_READ_MAXIOV must be <= (MAX_IOVEC-2) from sunrpc/xprt.h
  64  */
  65 #define NFS_READ_MAXIOV 8
  66
  67 struct nfs_readargs {
  68         struct nfs_fh *         fh;
  69         __u64                   offset;
  70         __u32                   count;
  71         unsigned int            nriov;
  72         struct iovec            iov[NFS_READ_MAXIOV];
  73 };
  74
  75 struct nfs_readres {
  76         struct nfs_fattr *      fattr;
  77         unsigned int            count;
  78         int                     eof;
  79 };
  80
  81 /* Arguments to the write call.
  82  * Note that NFS_WRITE_MAXIOV must be <= (MAX_IOVEC-2) from sunrpc/xprt.h
  83  */
  84 #define NFS_WRITE_MAXIOV        8
  85 struct nfs_writeargs {
  86         struct nfs_fh *         fh;
  87         __u32                   offset;
  88         __u32                   count;
  89         enum nfs3_stable_how    stable;
  90         unsigned int            nriov;
  91         struct iovec            iov[NFS_WRITE_MAXIOV];
  92 };
  93
  94 struct nfs_writeverf {
  95         enum nfs3_stable_how    committed;
  96         __u32                   verifier[2];
  97 };
  98
  99 struct nfs_writeres {
 100         struct nfs_fattr *      fattr;
 101         struct nfs_writeverf *  verf;
 102         __u32                   count;
 103 };
 104
 105 /*
 106  * Argument struct for decode_entry function
 107  */
 108 struct nfs_entry {
 109         __u64                   ino;
 110         __u64                   cookie,
 111                                 prev_cookie;
 112         const char *            name;
 113         unsigned int            len;
 114         int                     eof;
 115         struct nfs_fh           fh;
 116         struct nfs_fattr        fattr;
 117 };
 118
 119 /*
 120  * The following types are for NFSv2 only.
 121  */
 122 struct nfs_sattrargs {
 123         struct nfs_fh *         fh;
 124         struct iattr *          sattr;
 125 };
 126
 127 struct nfs_diropargs {
 128         struct nfs_fh *         fh;
 129         const char *            name;
 130         unsigned int            len;
 131 };
 132
 133 struct nfs_createargs {
 134         struct nfs_fh *         fh;
 135         const char *            name;
 136         unsigned int            len;
 137         struct iattr *          sattr;
 138 };
 139
 140 struct nfs_renameargs {
 141         struct nfs_fh *         fromfh;
 142         const char *            fromname;
 143         unsigned int            fromlen;
 144         struct nfs_fh *         tofh;
 145         const char *            toname;
 146         unsigned int            tolen;
 147 };
 148
 149 struct nfs_linkargs {
 150         struct nfs_fh *         fromfh;
 151         struct nfs_fh *         tofh;
 152         const char *            toname;
 153         unsigned int            tolen;
 154 };
 155
 156 struct nfs_symlinkargs {
 157         struct nfs_fh *         fromfh;
 158         const char *            fromname;
 159         unsigned int            fromlen;
 160         const char *            topath;
 161         unsigned int            tolen;
 162         struct iattr *          sattr;
 163 };
 164
 165 struct nfs_readdirargs {
 166         struct nfs_fh *         fh;
 167         __u32                   cookie;
 168         void *                  buffer;
 169         unsigned int            bufsiz;
 170 };
 171
 172 struct nfs_diropok {
 173         struct nfs_fh *         fh;
 174         struct nfs_fattr *      fattr;
 175 };
 176
 177 struct nfs_readlinkargs {
 178         struct nfs_fh *         fh;
 179         void *                  buffer;
 180         unsigned int            bufsiz;
 181 };
 182
 183 struct nfs_readlinkres {
 184         void *                  buffer;
 185         unsigned int            bufsiz;
 186 };
 187
 188 struct nfs_readdirres {
 189         void *                  buffer;
 190         unsigned int            bufsiz;
 191 };
 192
 193 struct nfs3_sattrargs {
 194         struct nfs_fh *         fh;
 195         struct iattr *          sattr;
 196         unsigned int            guard;
 197         __u64                   guardtime;
 198 };
 199
 200 struct nfs3_diropargs {
 201         struct nfs_fh *         fh;
 202         const char *            name;
 203         unsigned int            len;
 204 };
 205
 206 struct nfs3_accessargs {
 207         struct nfs_fh *         fh;
 208         __u32                   access;
 209 };
 210
 211 struct nfs3_createargs {
 212         struct nfs_fh *         fh;
 213         const char *            name;
 214         unsigned int            len;
 215         struct iattr *          sattr;
 216         enum nfs3_createmode    createmode;
 217         __u32                   verifier[2];
 218 };
 219
 220 struct nfs3_mkdirargs {
 221         struct nfs_fh *         fh;
 222         const char *            name;
 223         unsigned int            len;
 224         struct iattr *          sattr;
 225 };
 226
 227 struct nfs3_symlinkargs {
 228         struct nfs_fh *         fromfh;
 229         const char *            fromname;
 230         unsigned int            fromlen;
 231         const char *            topath;
 232         unsigned int            tolen;
 233         struct iattr *          sattr;
 234 };
 235
 236 struct nfs3_mknodargs {
 237         struct nfs_fh *         fh;
 238         const char *            name;
 239         unsigned int            len;
 240         enum nfs3_ftype         type;
 241         struct iattr *          sattr;
 242         dev_t                   rdev;
 243 };
 244
 245 struct nfs3_renameargs {
 246         struct nfs_fh *         fromfh;
 247         const char *            fromname;
 248         unsigned int            fromlen;
 249         struct nfs_fh *         tofh;
 250         const char *            toname;
 251         unsigned int            tolen;
 252 };
 253
 254 struct nfs3_linkargs {
 255         struct nfs_fh *         fromfh;
 256         struct nfs_fh *         tofh;
 257         const char *            toname;
 258         unsigned int            tolen;
 259 };
 260
 261 struct nfs3_readdirargs {
 262         struct nfs_fh *         fh;
 263         __u64                   cookie;
 264         __u32                   verf[2];
 265         void *                  buffer;
 266         unsigned int            bufsiz;
 267         int                     plus;
 268 };
 269
 270 struct nfs3_diropres {
 271         struct nfs_fattr *      dir_attr;
 272         struct nfs_fh *         fh;
 273         struct nfs_fattr *      fattr;
 274 };
 275
 276 struct nfs3_accessres {
 277         struct nfs_fattr *      fattr;
 278         __u32                   access;
 279 };
 280
 281 struct nfs3_readlinkargs {
 282         struct nfs_fh *         fh;
 283         void *                  buffer;
 284         unsigned int            bufsiz;
 285 };
 286
 287 struct nfs3_readlinkres {
 288         struct nfs_fattr *      fattr;
 289         void *                  buffer;
 290         unsigned int            bufsiz;
 291 };
 292
 293 struct nfs3_renameres {
 294         struct nfs_fattr *      fromattr;
 295         struct nfs_fattr *      toattr;
 296 };
 297
 298 struct nfs3_linkres {
 299         struct nfs_fattr *      dir_attr;
 300         struct nfs_fattr *      fattr;
 301 };
 302
 303 struct nfs3_readdirres {
 304         struct nfs_fattr *      dir_attr;
 305         __u32 *                 verf;
 306         void *                  buffer;
 307         unsigned int            bufsiz;
 308         int                     plus;
 309 };
 310
 311 /*
 312  * RPC procedure vector for NFSv2/NFSv3 demuxing
 313  */
 314 struct nfs_rpc_ops {
 315         int     version;                /* Protocol version */
 316
 317         int     (*getroot) (struct nfs_server *, struct nfs_fh *,
 318                             struct nfs_fattr *);
 319         int     (*getattr) (struct inode *, struct nfs_fattr *);
 320         int     (*setattr) (struct inode *, struct nfs_fattr *,
 321                             struct iattr *);
 322         int     (*lookup)  (struct inode *, struct qstr *,
 323                             struct nfs_fh *, struct nfs_fattr *);
 324         int     (*access)  (struct inode *, int , int);
 325         int     (*readlink)(struct inode *, void *, unsigned int);
 326         int     (*read)    (struct inode *, struct rpc_cred *,
 327                             struct nfs_fattr *,
 328                             int, loff_t, unsigned int,
 329                             void *buffer, int *eofp);
 330         int     (*write)   (struct inode *, struct rpc_cred *,
 331                             struct nfs_fattr *,
 332                             int, loff_t, unsigned int,
 333                             void *buffer, struct nfs_writeverf *verfp);
 334         int     (*commit)  (struct inode *, struct nfs_fattr *,
 335                             unsigned long, unsigned int);
 336         int     (*create)  (struct inode *, struct qstr *, struct iattr *,
 337                             int, struct nfs_fh *, struct nfs_fattr *);
 338         int     (*remove)  (struct inode *, struct qstr *);
 339         int     (*unlink_setup)  (struct rpc_message *,
 340                             struct dentry *, struct qstr *);
 341         void    (*unlink_done) (struct dentry *, struct rpc_message *);
 342         int     (*rename)  (struct inode *, struct qstr *,
 343                             struct inode *, struct qstr *);
 344         int     (*link)    (struct inode *, struct inode *, struct qstr *);
 345         int     (*symlink) (struct inode *, struct qstr *, struct qstr *,
 346                             struct iattr *, struct nfs_fh *,
 347                             struct nfs_fattr *);
 348         int     (*mkdir)   (struct inode *, struct qstr *, struct iattr *,
 349                             struct nfs_fh *, struct nfs_fattr *);
 350         int     (*rmdir)   (struct inode *, struct qstr *);
 351         int     (*readdir) (struct inode *, struct rpc_cred *,
 352                             u64, void *, unsigned int, int);
 353         int     (*mknod)   (struct inode *, struct qstr *, struct iattr *,
 354                             dev_t, struct nfs_fh *, struct nfs_fattr *);
 355         int     (*statfs)  (struct nfs_server *, struct nfs_fh *,
 356                             struct nfs_fsinfo *);
 357         u32 *   (*decode_dirent)(u32 *, struct nfs_entry *, int plus);
 358 };
 359
 360 /*
 361  *      NFS_CALL(getattr, inode, (fattr));
 362  * into
 363  *      NFS_PROTO(inode)->getattr(fattr);
 364  */
 365 #define NFS_CALL(op, inode, args)       NFS_PROTO(inode)->op args
 366
 367 /*
 368  * Function vectors etc. for the NFS client
 369  */
 370 extern struct nfs_rpc_ops       nfs_v2_clientops;
 371 extern struct nfs_rpc_ops       nfs_v3_clientops;
 372 extern struct rpc_version       nfs_version2;
 373 extern struct rpc_version       nfs_version3;
 374 extern struct rpc_program       nfs_program;
 375
 376 #endif