contrib/tcpdump/nfs.h

   1 /* @(#) $Header: /tcpdump/master/tcpdump/nfs.h,v 1.9 2007-11-18 03:24:38 guy Exp $ (LBL) */
   2 /*      NetBSD: nfs.h,v 1.1 1996/05/23 22:49:53 fvdl Exp        */
   3
   4 /*
   5  * Copyright (c) 1989, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * This code is derived from software contributed to Berkeley by
   9  * Rick Macklem at The University of Guelph.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. All advertising materials mentioning features or use of this software
  20  *    must display the following acknowledgement:
  21  *      This product includes software developed by the University of
  22  *      California, Berkeley and its contributors.
  23  * 4. Neither the name of the University nor the names of its contributors
  24  *    may be used to endorse or promote products derived from this software
  25  *    without specific prior written permission.
  26  *
  27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  37  * SUCH DAMAGE.
  38  *
  39  *      @(#)nfsproto.h  8.2 (Berkeley) 3/30/95
  40  */
  41
  42 /*
  43  * nfs definitions as per the Version 2 and 3 specs
  44  */
  45
  46 /*
  47  * Constants as defined in the Sun NFS Version 2 and 3 specs.
  48  * "NFS: Network File System Protocol Specification" RFC1094
  49  * and in the "NFS: Network File System Version 3 Protocol
  50  * Specification"
  51  */
  52
  53 #define NFS_PORT        2049
  54 #define NFS_PROG        100003
  55 #define NFS_VER2        2
  56 #define NFS_VER3        3
  57 #define NFS_V2MAXDATA   8192
  58 #define NFS_MAXDGRAMDATA 16384
  59 #define NFS_MAXDATA     32768
  60 #define NFS_MAXPATHLEN  1024
  61 #define NFS_MAXNAMLEN   255
  62 #define NFS_MAXPKTHDR   404
  63 #define NFS_MAXPACKET   (NFS_MAXPKTHDR + NFS_MAXDATA)
  64 #define NFS_MINPACKET   20
  65 #define NFS_FABLKSIZE   512     /* Size in bytes of a block wrt fa_blocks */
  66
  67 /* Stat numbers for rpc returns (version 2 and 3) */
  68 #define NFS_OK                  0
  69 #define NFSERR_PERM             1
  70 #define NFSERR_NOENT            2
  71 #define NFSERR_IO               5
  72 #define NFSERR_NXIO             6
  73 #define NFSERR_ACCES            13
  74 #define NFSERR_EXIST            17
  75 #define NFSERR_XDEV             18      /* Version 3 only */
  76 #define NFSERR_NODEV            19
  77 #define NFSERR_NOTDIR           20
  78 #define NFSERR_ISDIR            21
  79 #define NFSERR_INVAL            22      /* Version 3 only */
  80 #define NFSERR_FBIG             27
  81 #define NFSERR_NOSPC            28
  82 #define NFSERR_ROFS             30
  83 #define NFSERR_MLINK            31      /* Version 3 only */
  84 #define NFSERR_NAMETOL          63
  85 #define NFSERR_NOTEMPTY         66
  86 #define NFSERR_DQUOT            69
  87 #define NFSERR_STALE            70
  88 #define NFSERR_REMOTE           71      /* Version 3 only */
  89 #define NFSERR_WFLUSH           99      /* Version 2 only */
  90 #define NFSERR_BADHANDLE        10001   /* The rest Version 3 only */
  91 #define NFSERR_NOT_SYNC         10002
  92 #define NFSERR_BAD_COOKIE       10003
  93 #define NFSERR_NOTSUPP          10004
  94 #define NFSERR_TOOSMALL         10005
  95 #define NFSERR_SERVERFAULT      10006
  96 #define NFSERR_BADTYPE          10007
  97 #define NFSERR_JUKEBOX          10008
  98 #define NFSERR_TRYLATER         NFSERR_JUKEBOX
  99 #define NFSERR_STALEWRITEVERF   30001   /* Fake return for nfs_commit() */
 100
 101 #define NFSERR_RETVOID          0x20000000 /* Return void, not error */
 102 #define NFSERR_AUTHERR          0x40000000 /* Mark an authentication error */
 103 #define NFSERR_RETERR           0x80000000 /* Mark an error return for V3 */
 104
 105 /* Sizes in bytes of various nfs rpc components */
 106 #define NFSX_UNSIGNED   4
 107
 108 /* specific to NFS Version 2 */
 109 #define NFSX_V2FH       32
 110 #define NFSX_V2FATTR    68
 111 #define NFSX_V2SATTR    32
 112 #define NFSX_V2COOKIE   4
 113 #define NFSX_V2STATFS   20
 114
 115 /* specific to NFS Version 3 */
 116 #if 0
 117 #define NFSX_V3FH               (sizeof (fhandle_t)) /* size this server uses */
 118 #endif
 119 #define NFSX_V3FHMAX            64      /* max. allowed by protocol */
 120 #define NFSX_V3FATTR            84
 121 #define NFSX_V3SATTR            60      /* max. all fields filled in */
 122 #define NFSX_V3SRVSATTR         (sizeof (struct nfsv3_sattr))
 123 #define NFSX_V3POSTOPATTR       (NFSX_V3FATTR + NFSX_UNSIGNED)
 124 #define NFSX_V3WCCDATA          (NFSX_V3POSTOPATTR + 8 * NFSX_UNSIGNED)
 125 #define NFSX_V3COOKIEVERF       8
 126 #define NFSX_V3WRITEVERF        8
 127 #define NFSX_V3CREATEVERF       8
 128 #define NFSX_V3STATFS           52
 129 #define NFSX_V3FSINFO           48
 130 #define NFSX_V3PATHCONF         24
 131
 132 /* variants for both versions */
 133 #define NFSX_FH(v3)             ((v3) ? (NFSX_V3FHMAX + NFSX_UNSIGNED) : \
 134                                         NFSX_V2FH)
 135 #define NFSX_SRVFH(v3)          ((v3) ? NFSX_V3FH : NFSX_V2FH)
 136 #define NFSX_FATTR(v3)          ((v3) ? NFSX_V3FATTR : NFSX_V2FATTR)
 137 #define NFSX_PREOPATTR(v3)      ((v3) ? (7 * NFSX_UNSIGNED) : 0)
 138 #define NFSX_POSTOPATTR(v3)     ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : 0)
 139 #define NFSX_POSTOPORFATTR(v3)  ((v3) ? (NFSX_V3FATTR + NFSX_UNSIGNED) : \
 140                                         NFSX_V2FATTR)
 141 #define NFSX_WCCDATA(v3)        ((v3) ? NFSX_V3WCCDATA : 0)
 142 #define NFSX_WCCORFATTR(v3)     ((v3) ? NFSX_V3WCCDATA : NFSX_V2FATTR)
 143 #define NFSX_SATTR(v3)          ((v3) ? NFSX_V3SATTR : NFSX_V2SATTR)
 144 #define NFSX_COOKIEVERF(v3)     ((v3) ? NFSX_V3COOKIEVERF : 0)
 145 #define NFSX_WRITEVERF(v3)      ((v3) ? NFSX_V3WRITEVERF : 0)
 146 #define NFSX_READDIR(v3)        ((v3) ? (5 * NFSX_UNSIGNED) : \
 147                                         (2 * NFSX_UNSIGNED))
 148 #define NFSX_STATFS(v3)         ((v3) ? NFSX_V3STATFS : NFSX_V2STATFS)
 149
 150 /* nfs rpc procedure numbers (before version mapping) */
 151 #define NFSPROC_NULL            0
 152 #define NFSPROC_GETATTR         1
 153 #define NFSPROC_SETATTR         2
 154 #define NFSPROC_LOOKUP          3
 155 #define NFSPROC_ACCESS          4
 156 #define NFSPROC_READLINK        5
 157 #define NFSPROC_READ            6
 158 #define NFSPROC_WRITE           7
 159 #define NFSPROC_CREATE          8
 160 #define NFSPROC_MKDIR           9
 161 #define NFSPROC_SYMLINK         10
 162 #define NFSPROC_MKNOD           11
 163 #define NFSPROC_REMOVE          12
 164 #define NFSPROC_RMDIR           13
 165 #define NFSPROC_RENAME          14
 166 #define NFSPROC_LINK            15
 167 #define NFSPROC_READDIR         16
 168 #define NFSPROC_READDIRPLUS     17
 169 #define NFSPROC_FSSTAT          18
 170 #define NFSPROC_FSINFO          19
 171 #define NFSPROC_PATHCONF        20
 172 #define NFSPROC_COMMIT          21
 173
 174 /* And leasing (nqnfs) procedure numbers (must be last) */
 175 #define NQNFSPROC_GETLEASE      22
 176 #define NQNFSPROC_VACATED       23
 177 #define NQNFSPROC_EVICTED       24
 178
 179 #define NFSPROC_NOOP            25
 180 #define NFS_NPROCS              26
 181
 182 /* Actual Version 2 procedure numbers */
 183 #define NFSV2PROC_NULL          0
 184 #define NFSV2PROC_GETATTR       1
 185 #define NFSV2PROC_SETATTR       2
 186 #define NFSV2PROC_NOOP          3
 187 #define NFSV2PROC_ROOT          NFSV2PROC_NOOP  /* Obsolete */
 188 #define NFSV2PROC_LOOKUP        4
 189 #define NFSV2PROC_READLINK      5
 190 #define NFSV2PROC_READ          6
 191 #define NFSV2PROC_WRITECACHE    NFSV2PROC_NOOP  /* Obsolete */
 192 #define NFSV2PROC_WRITE         8
 193 #define NFSV2PROC_CREATE        9
 194 #define NFSV2PROC_REMOVE        10
 195 #define NFSV2PROC_RENAME        11
 196 #define NFSV2PROC_LINK          12
 197 #define NFSV2PROC_SYMLINK       13
 198 #define NFSV2PROC_MKDIR         14
 199 #define NFSV2PROC_RMDIR         15
 200 #define NFSV2PROC_READDIR       16
 201 #define NFSV2PROC_STATFS        17
 202
 203 /*
 204  * Constants used by the Version 3 protocol for various RPCs
 205  */
 206 #define NFSV3SATTRTIME_DONTCHANGE       0
 207 #define NFSV3SATTRTIME_TOSERVER         1
 208 #define NFSV3SATTRTIME_TOCLIENT         2
 209
 210 #define NFSV3ATTRTIME_NMODES            3
 211
 212 #define NFSV3ACCESS_READ                0x01
 213 #define NFSV3ACCESS_LOOKUP              0x02
 214 #define NFSV3ACCESS_MODIFY              0x04
 215 #define NFSV3ACCESS_EXTEND              0x08
 216 #define NFSV3ACCESS_DELETE              0x10
 217 #define NFSV3ACCESS_EXECUTE             0x20
 218 #define NFSV3ACCESS_FULL                0x3f
 219
 220 #define NFSV3WRITE_UNSTABLE             0
 221 #define NFSV3WRITE_DATASYNC             1
 222 #define NFSV3WRITE_FILESYNC             2
 223
 224 #define NFSV3WRITE_NMODES               3
 225
 226 #define NFSV3CREATE_UNCHECKED           0
 227 #define NFSV3CREATE_GUARDED             1
 228 #define NFSV3CREATE_EXCLUSIVE           2
 229
 230 #define NFSV3CREATE_NMODES              3
 231
 232 #define NFSV3FSINFO_LINK                0x01
 233 #define NFSV3FSINFO_SYMLINK             0x02
 234 #define NFSV3FSINFO_HOMOGENEOUS         0x08
 235 #define NFSV3FSINFO_CANSETTIME          0x10
 236
 237 /* Conversion macros */
 238 #define vtonfsv2_mode(t,m) \
 239                 txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : \
 240                                 MAKEIMODE((t), (m)))
 241 #define vtonfsv3_mode(m)        txdr_unsigned((m) & 07777)
 242 #define nfstov_mode(a)          (fxdr_unsigned(u_int16_t, (a))&07777)
 243 #define vtonfsv2_type(a)        txdr_unsigned(nfsv2_type[((int32_t)(a))])
 244 #define vtonfsv3_type(a)        txdr_unsigned(nfsv3_type[((int32_t)(a))])
 245 #define nfsv2tov_type(a)        nv2tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
 246 #define nfsv3tov_type(a)        nv3tov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
 247
 248 /* File types */
 249 typedef enum { NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5,
 250         NFSOCK=6, NFFIFO=7 } nfs_type;
 251
 252 /* Structs for common parts of the rpc's */
 253 /*
 254  * File Handle (32 bytes for version 2), variable up to 64 for version 3.
 255  * File Handles of up to NFS_SMALLFH in size are stored directly in the
 256  * nfs node, whereas larger ones are malloc'd. (This never happens when
 257  * NFS_SMALLFH is set to 64.)
 258  * NFS_SMALLFH should be in the range of 32 to 64 and be divisible by 4.
 259  */
 260 #ifndef NFS_SMALLFH
 261 #define NFS_SMALLFH     64
 262 #endif
 263 union nfsfh {
 264 /*      fhandle_t fh_generic; */
 265         u_char    fh_bytes[NFS_SMALLFH];
 266 };
 267 typedef union nfsfh nfsfh_t;
 268
 269 struct nfsv2_time {
 270         u_int32_t nfsv2_sec;
 271         u_int32_t nfsv2_usec;
 272 };
 273 typedef struct nfsv2_time       nfstime2;
 274
 275 struct nfsv3_time {
 276         u_int32_t nfsv3_sec;
 277         u_int32_t nfsv3_nsec;
 278 };
 279 typedef struct nfsv3_time       nfstime3;
 280
 281 /*
 282  * Quads are defined as arrays of 2 longs to ensure dense packing for the
 283  * protocol and to facilitate xdr conversion.
 284  */
 285 struct nfs_uquad {
 286         u_int32_t nfsuquad[2];
 287 };
 288 typedef struct nfs_uquad        nfsuint64;
 289
 290 /*
 291  * NFS Version 3 special file number.
 292  */
 293 struct nfsv3_spec {
 294         u_int32_t specdata1;
 295         u_int32_t specdata2;
 296 };
 297 typedef struct nfsv3_spec       nfsv3spec;
 298
 299 /*
 300  * File attributes and setable attributes. These structures cover both
 301  * NFS version 2 and the version 3 protocol. Note that the union is only
 302  * used so that one pointer can refer to both variants. These structures
 303  * go out on the wire and must be densely packed, so no quad data types
 304  * are used. (all fields are longs or u_longs or structures of same)
 305  * NB: You can't do sizeof(struct nfs_fattr), you must use the
 306  *     NFSX_FATTR(v3) macro.
 307  */
 308 struct nfs_fattr {
 309         u_int32_t fa_type;
 310         u_int32_t fa_mode;
 311         u_int32_t fa_nlink;
 312         u_int32_t fa_uid;
 313         u_int32_t fa_gid;
 314         union {
 315                 struct {
 316                         u_int32_t nfsv2fa_size;
 317                         u_int32_t nfsv2fa_blocksize;
 318                         u_int32_t nfsv2fa_rdev;
 319                         u_int32_t nfsv2fa_blocks;
 320                         u_int32_t nfsv2fa_fsid;
 321                         u_int32_t nfsv2fa_fileid;
 322                         nfstime2  nfsv2fa_atime;
 323                         nfstime2  nfsv2fa_mtime;
 324                         nfstime2  nfsv2fa_ctime;
 325                 } fa_nfsv2;
 326                 struct {
 327                         nfsuint64 nfsv3fa_size;
 328                         nfsuint64 nfsv3fa_used;
 329                         nfsv3spec nfsv3fa_rdev;
 330                         nfsuint64 nfsv3fa_fsid;
 331                         nfsuint64 nfsv3fa_fileid;
 332                         nfstime3  nfsv3fa_atime;
 333                         nfstime3  nfsv3fa_mtime;
 334                         nfstime3  nfsv3fa_ctime;
 335                 } fa_nfsv3;
 336         } fa_un;
 337 };
 338
 339 /* and some ugly defines for accessing union components */
 340 #define fa2_size                fa_un.fa_nfsv2.nfsv2fa_size
 341 #define fa2_blocksize           fa_un.fa_nfsv2.nfsv2fa_blocksize
 342 #define fa2_rdev                fa_un.fa_nfsv2.nfsv2fa_rdev
 343 #define fa2_blocks              fa_un.fa_nfsv2.nfsv2fa_blocks
 344 #define fa2_fsid                fa_un.fa_nfsv2.nfsv2fa_fsid
 345 #define fa2_fileid              fa_un.fa_nfsv2.nfsv2fa_fileid
 346 #define fa2_atime               fa_un.fa_nfsv2.nfsv2fa_atime
 347 #define fa2_mtime               fa_un.fa_nfsv2.nfsv2fa_mtime
 348 #define fa2_ctime               fa_un.fa_nfsv2.nfsv2fa_ctime
 349 #define fa3_size                fa_un.fa_nfsv3.nfsv3fa_size
 350 #define fa3_used                fa_un.fa_nfsv3.nfsv3fa_used
 351 #define fa3_rdev                fa_un.fa_nfsv3.nfsv3fa_rdev
 352 #define fa3_fsid                fa_un.fa_nfsv3.nfsv3fa_fsid
 353 #define fa3_fileid              fa_un.fa_nfsv3.nfsv3fa_fileid
 354 #define fa3_atime               fa_un.fa_nfsv3.nfsv3fa_atime
 355 #define fa3_mtime               fa_un.fa_nfsv3.nfsv3fa_mtime
 356 #define fa3_ctime               fa_un.fa_nfsv3.nfsv3fa_ctime
 357
 358 struct nfsv2_sattr {
 359         u_int32_t sa_mode;
 360         u_int32_t sa_uid;
 361         u_int32_t sa_gid;
 362         u_int32_t sa_size;
 363         nfstime2  sa_atime;
 364         nfstime2  sa_mtime;
 365 };
 366
 367 /*
 368  * NFS Version 3 sattr structure for the new node creation case.
 369  */
 370 struct nfsv3_sattr {
 371         u_int32_t   sa_modeset;
 372         u_int32_t   sa_mode;
 373         u_int32_t   sa_uidset;
 374         u_int32_t   sa_uid;
 375         u_int32_t   sa_gidset;
 376         u_int32_t   sa_gid;
 377         u_int32_t   sa_sizeset;
 378         u_int32_t   sa_size;
 379         u_int32_t   sa_atimetype;
 380         nfstime3  sa_atime;
 381         u_int32_t   sa_mtimetype;
 382         nfstime3  sa_mtime;
 383 };
 384
 385 struct nfs_statfs {
 386         union {
 387                 struct {
 388                         u_int32_t nfsv2sf_tsize;
 389                         u_int32_t nfsv2sf_bsize;
 390                         u_int32_t nfsv2sf_blocks;
 391                         u_int32_t nfsv2sf_bfree;
 392                         u_int32_t nfsv2sf_bavail;
 393                 } sf_nfsv2;
 394                 struct {
 395                         nfsuint64 nfsv3sf_tbytes;
 396                         nfsuint64 nfsv3sf_fbytes;
 397                         nfsuint64 nfsv3sf_abytes;
 398                         nfsuint64 nfsv3sf_tfiles;
 399                         nfsuint64 nfsv3sf_ffiles;
 400                         nfsuint64 nfsv3sf_afiles;
 401                         u_int32_t nfsv3sf_invarsec;
 402                 } sf_nfsv3;
 403         } sf_un;
 404 };
 405
 406 #define sf_tsize        sf_un.sf_nfsv2.nfsv2sf_tsize
 407 #define sf_bsize        sf_un.sf_nfsv2.nfsv2sf_bsize
 408 #define sf_blocks       sf_un.sf_nfsv2.nfsv2sf_blocks
 409 #define sf_bfree        sf_un.sf_nfsv2.nfsv2sf_bfree
 410 #define sf_bavail       sf_un.sf_nfsv2.nfsv2sf_bavail
 411 #define sf_tbytes       sf_un.sf_nfsv3.nfsv3sf_tbytes
 412 #define sf_fbytes       sf_un.sf_nfsv3.nfsv3sf_fbytes
 413 #define sf_abytes       sf_un.sf_nfsv3.nfsv3sf_abytes
 414 #define sf_tfiles       sf_un.sf_nfsv3.nfsv3sf_tfiles
 415 #define sf_ffiles       sf_un.sf_nfsv3.nfsv3sf_ffiles
 416 #define sf_afiles       sf_un.sf_nfsv3.nfsv3sf_afiles
 417 #define sf_invarsec     sf_un.sf_nfsv3.nfsv3sf_invarsec
 418
 419 struct nfsv3_fsinfo {
 420         u_int32_t fs_rtmax;
 421         u_int32_t fs_rtpref;
 422         u_int32_t fs_rtmult;
 423         u_int32_t fs_wtmax;
 424         u_int32_t fs_wtpref;
 425         u_int32_t fs_wtmult;
 426         u_int32_t fs_dtpref;
 427         nfsuint64 fs_maxfilesize;
 428         nfstime3  fs_timedelta;
 429         u_int32_t fs_properties;
 430 };
 431
 432 struct nfsv3_pathconf {
 433         u_int32_t pc_linkmax;
 434         u_int32_t pc_namemax;
 435         u_int32_t pc_notrunc;
 436         u_int32_t pc_chownrestricted;
 437         u_int32_t pc_caseinsensitive;
 438         u_int32_t pc_casepreserving;
 439 };