sunrpc/rpcsvc/nfs_prot.x

   1 /* @(#)nfs_prot.x       2.1 88/08/01 4.0 RPCSRC */
   2
   3 /*
   4  * nfs_prot.x 1.2 87/10/12
   5  * Copyright (c) 2010, Oracle America, Inc.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions are
   9  * met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above
  14  *       copyright notice, this list of conditions and the following
  15  *       disclaimer in the documentation and/or other materials
  16  *       provided with the distribution.
  17  *     * Neither the name of the "Oracle America, Inc." nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  25  *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  26  *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  28  *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  30  *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  31  *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  32  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34 const NFS_PORT          = 2049;
  35 const NFS_MAXDATA       = 8192;
  36 const NFS_MAXPATHLEN    = 1024;
  37 const NFS_MAXNAMLEN     = 255;
  38 const NFS_FHSIZE        = 32;
  39 const NFS_COOKIESIZE    = 4;
  40 const NFS_FIFO_DEV      = -1;   /* size kludge for named pipes */
  41
  42 /*
  43  * File types
  44  */
  45 const NFSMODE_FMT  = 0170000;   /* type of file */
  46 const NFSMODE_DIR  = 0040000;   /* directory */
  47 const NFSMODE_CHR  = 0020000;   /* character special */
  48 const NFSMODE_BLK  = 0060000;   /* block special */
  49 const NFSMODE_REG  = 0100000;   /* regular */
  50 const NFSMODE_LNK  = 0120000;   /* symbolic link */
  51 const NFSMODE_SOCK = 0140000;   /* socket */
  52 const NFSMODE_FIFO = 0010000;   /* fifo */
  53
  54 /*
  55  * Error status
  56  */
  57 enum nfsstat {
  58         NFS_OK= 0,              /* no error */
  59         NFSERR_PERM=1,          /* Not owner */
  60         NFSERR_NOENT=2,         /* No such file or directory */
  61         NFSERR_IO=5,            /* I/O error */
  62         NFSERR_NXIO=6,          /* No such device or address */
  63         NFSERR_ACCES=13,        /* Permission denied */
  64         NFSERR_EXIST=17,        /* File exists */
  65         NFSERR_NODEV=19,        /* No such device */
  66         NFSERR_NOTDIR=20,       /* Not a directory*/
  67         NFSERR_ISDIR=21,        /* Is a directory */
  68         NFSERR_FBIG=27,         /* File too large */
  69         NFSERR_NOSPC=28,        /* No space left on device */
  70         NFSERR_ROFS=30,         /* Read-only file system */
  71         NFSERR_NAMETOOLONG=63,  /* File name too long */
  72         NFSERR_NOTEMPTY=66,     /* Directory not empty */
  73         NFSERR_DQUOT=69,        /* Disc quota exceeded */
  74         NFSERR_STALE=70,        /* Stale NFS file handle */
  75         NFSERR_WFLUSH=99        /* write cache flushed */
  76 };
  77
  78 /*
  79  * File types
  80  */
  81 enum ftype {
  82         NFNON = 0,      /* non-file */
  83         NFREG = 1,      /* regular file */
  84         NFDIR = 2,      /* directory */
  85         NFBLK = 3,      /* block special */
  86         NFCHR = 4,      /* character special */
  87         NFLNK = 5,      /* symbolic link */
  88         NFSOCK = 6,     /* unix domain sockets */
  89         NFBAD = 7,      /* unused */
  90         NFFIFO = 8      /* named pipe */
  91 };
  92
  93 /*
  94  * File access handle
  95  */
  96 struct nfs_fh {
  97         opaque data[NFS_FHSIZE];
  98 };
  99
 100 /*
 101  * Timeval
 102  */
 103 struct nfstime {
 104         unsigned seconds;
 105         unsigned useconds;
 106 };
 107
 108
 109 /*
 110  * File attributes
 111  */
 112 struct fattr {
 113         ftype type;             /* file type */
 114         unsigned mode;          /* protection mode bits */
 115         unsigned nlink;         /* # hard links */
 116         unsigned uid;           /* owner user id */
 117         unsigned gid;           /* owner group id */
 118         unsigned size;          /* file size in bytes */
 119         unsigned blocksize;     /* preferred block size */
 120         unsigned rdev;          /* special device # */
 121         unsigned blocks;        /* Kb of disk used by file */
 122         unsigned fsid;          /* device # */
 123         unsigned fileid;        /* inode # */
 124         nfstime atime;          /* time of last access */
 125         nfstime mtime;          /* time of last modification */
 126         nfstime ctime;          /* time of last change */
 127 };
 128
 129 /*
 130  * File attributes which can be set
 131  */
 132 struct sattr {
 133         unsigned mode;  /* protection mode bits */
 134         unsigned uid;   /* owner user id */
 135         unsigned gid;   /* owner group id */
 136         unsigned size;  /* file size in bytes */
 137         nfstime atime;  /* time of last access */
 138         nfstime mtime;  /* time of last modification */
 139 };
 140
 141
 142 typedef string filename<NFS_MAXNAMLEN>;
 143 typedef string nfspath<NFS_MAXPATHLEN>;
 144
 145 /*
 146  * Reply status with file attributes
 147  */
 148 union attrstat switch (nfsstat status) {
 149 case NFS_OK:
 150         fattr attributes;
 151 default:
 152         void;
 153 };
 154
 155 struct sattrargs {
 156         nfs_fh file;
 157         sattr attributes;
 158 };
 159
 160 /*
 161  * Arguments for directory operations
 162  */
 163 struct diropargs {
 164         nfs_fh  dir;    /* directory file handle */
 165         filename name;          /* name (up to NFS_MAXNAMLEN bytes) */
 166 };
 167
 168 struct diropokres {
 169         nfs_fh file;
 170         fattr attributes;
 171 };
 172
 173 /*
 174  * Results from directory operation
 175  */
 176 union diropres switch (nfsstat status) {
 177 case NFS_OK:
 178         diropokres diropres;
 179 default:
 180         void;
 181 };
 182
 183 union readlinkres switch (nfsstat status) {
 184 case NFS_OK:
 185         nfspath data;
 186 default:
 187         void;
 188 };
 189
 190 /*
 191  * Arguments to remote read
 192  */
 193 struct readargs {
 194         nfs_fh file;            /* handle for file */
 195         unsigned offset;        /* byte offset in file */
 196         unsigned count;         /* immediate read count */
 197         unsigned totalcount;    /* total read count (from this offset)*/
 198 };
 199
 200 /*
 201  * Status OK portion of remote read reply
 202  */
 203 struct readokres {
 204         fattr   attributes;     /* attributes, need for pagin*/
 205         opaque data<NFS_MAXDATA>;
 206 };
 207
 208 union readres switch (nfsstat status) {
 209 case NFS_OK:
 210         readokres reply;
 211 default:
 212         void;
 213 };
 214
 215 /*
 216  * Arguments to remote write
 217  */
 218 struct writeargs {
 219         nfs_fh  file;           /* handle for file */
 220         unsigned beginoffset;   /* beginning byte offset in file */
 221         unsigned offset;        /* current byte offset in file */
 222         unsigned totalcount;    /* total write count (to this offset)*/
 223         opaque data<NFS_MAXDATA>;
 224 };
 225
 226 struct createargs {
 227         diropargs where;
 228         sattr attributes;
 229 };
 230
 231 struct renameargs {
 232         diropargs from;
 233         diropargs to;
 234 };
 235
 236 struct linkargs {
 237         nfs_fh from;
 238         diropargs to;
 239 };
 240
 241 struct symlinkargs {
 242         diropargs from;
 243         nfspath to;
 244         sattr attributes;
 245 };
 246
 247
 248 typedef opaque nfscookie[NFS_COOKIESIZE];
 249
 250 /*
 251  * Arguments to readdir
 252  */
 253 struct readdirargs {
 254         nfs_fh dir;             /* directory handle */
 255         nfscookie cookie;
 256         unsigned count;         /* number of directory bytes to read */
 257 };
 258
 259 struct entry {
 260         unsigned fileid;
 261         filename name;
 262         nfscookie cookie;
 263         entry *nextentry;
 264 };
 265
 266 struct dirlist {
 267         entry *entries;
 268         bool eof;
 269 };
 270
 271 union readdirres switch (nfsstat status) {
 272 case NFS_OK:
 273         dirlist reply;
 274 default:
 275         void;
 276 };
 277
 278 struct statfsokres {
 279         unsigned tsize; /* preferred transfer size in bytes */
 280         unsigned bsize; /* fundamental file system block size */
 281         unsigned blocks;        /* total blocks in file system */
 282         unsigned bfree; /* free blocks in fs */
 283         unsigned bavail;        /* free blocks avail to non-superuser */
 284 };
 285
 286 union statfsres switch (nfsstat status) {
 287 case NFS_OK:
 288         statfsokres reply;
 289 default:
 290         void;
 291 };
 292
 293 /*
 294  * Remote file service routines
 295  */
 296 program NFS_PROGRAM {
 297         version NFS_VERSION {
 298                 void
 299                 NFSPROC_NULL(void) = 0;
 300
 301                 attrstat
 302                 NFSPROC_GETATTR(nfs_fh) =       1;
 303
 304                 attrstat
 305                 NFSPROC_SETATTR(sattrargs) = 2;
 306
 307                 void
 308                 NFSPROC_ROOT(void) = 3;
 309
 310                 diropres
 311                 NFSPROC_LOOKUP(diropargs) = 4;
 312
 313                 readlinkres
 314                 NFSPROC_READLINK(nfs_fh) = 5;
 315
 316                 readres
 317                 NFSPROC_READ(readargs) = 6;
 318
 319                 void
 320                 NFSPROC_WRITECACHE(void) = 7;
 321
 322                 attrstat
 323                 NFSPROC_WRITE(writeargs) = 8;
 324
 325                 diropres
 326                 NFSPROC_CREATE(createargs) = 9;
 327
 328                 nfsstat
 329                 NFSPROC_REMOVE(diropargs) = 10;
 330
 331                 nfsstat
 332                 NFSPROC_RENAME(renameargs) = 11;
 333
 334                 nfsstat
 335                 NFSPROC_LINK(linkargs) = 12;
 336
 337                 nfsstat
 338                 NFSPROC_SYMLINK(symlinkargs) = 13;
 339
 340                 diropres
 341                 NFSPROC_MKDIR(createargs) = 14;
 342
 343                 nfsstat
 344                 NFSPROC_RMDIR(diropargs) = 15;
 345
 346                 readdirres
 347                 NFSPROC_READDIR(readdirargs) = 16;
 348
 349                 statfsres
 350                 NFSPROC_STATFS(nfs_fh) = 17;
 351         } = 2;
 352 } = 100003;