The Tcpdump Group git mirrors - tcpdump/blob - nfsv2.h

   1 /*
   2  * Copyright (c) 1994, 1995, 1996
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Rick Macklem at The University of Guelph.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      @(#)nfsv2.h     7.11 (Berkeley) 9/30/92
  37  */
  38
  39 /*
  40  * nfs definitions as per the version 2 specs
  41  */
  42
  43 /*
  44  * Constants as defined in the Sun NFS Version 2 spec.
  45  * "NFS: Network File System Protocol Specification" RFC1094
  46  */
  47
  48 #define NFS_PORT        2049
  49 #define NFS_PROG        100003
  50 #define NFS_VER2        2
  51 #define NFS_MAXDGRAMDATA 8192
  52 #define NFS_MAXDATA     32768
  53 #define NFS_MAXPATHLEN  1024
  54 #define NFS_MAXNAMLEN   255
  55 #define NFS_FHSIZE      32
  56 #define NFS_MAXPKTHDR   404
  57 #define NFS_MAXPACKET   (NFS_MAXPKTHDR+NFS_MAXDATA)
  58 #define NFS_MINPACKET   20
  59 #define NFS_FABLKSIZE   512     /* Size in bytes of a block wrt fa_blocks */
  60
  61 /* Stat numbers for rpc returns */
  62 #define NFS_OK          0
  63 #define NFSERR_PERM     1
  64 #define NFSERR_NOENT    2
  65 #define NFSERR_IO       5
  66 #define NFSERR_NXIO     6
  67 #define NFSERR_ACCES    13
  68 #define NFSERR_EXIST    17
  69 #define NFSERR_NODEV    19
  70 #define NFSERR_NOTDIR   20
  71 #define NFSERR_ISDIR    21
  72 #define NFSERR_FBIG     27
  73 #define NFSERR_NOSPC    28
  74 #define NFSERR_ROFS     30
  75 #define NFSERR_NAMETOL  63
  76 #define NFSERR_NOTEMPTY 66
  77 #define NFSERR_DQUOT    69
  78 #define NFSERR_STALE    70
  79 #define NFSERR_WFLUSH   99
  80
  81 /* Sizes in bytes of various nfs rpc components */
  82 #define NFSX_FH         32
  83 #define NFSX_UNSIGNED   4
  84 #define NFSX_NFSFATTR   68
  85 #define NFSX_NQFATTR    92
  86 #define NFSX_NFSSATTR   32
  87 #define NFSX_NQSATTR    44
  88 #define NFSX_COOKIE     4
  89 #define NFSX_NFSSTATFS  20
  90 #define NFSX_NQSTATFS   28
  91 #define NFSX_FATTR(isnq)        ((isnq) ? NFSX_NQFATTR : NFSX_NFSFATTR)
  92 #define NFSX_SATTR(isnq)        ((isnq) ? NFSX_NQSATTR : NFSX_NFSSATTR)
  93 #define NFSX_STATFS(isnq)       ((isnq) ? NFSX_NQSTATFS : NFSX_NFSSTATFS)
  94
  95 /* nfs rpc procedure numbers */
  96 #define NFSPROC_NULL            0
  97 #define NFSPROC_GETATTR         1
  98 #define NFSPROC_SETATTR         2
  99 #define NFSPROC_NOOP            3
 100 #define NFSPROC_ROOT            NFSPROC_NOOP    /* Obsolete */
 101 #define NFSPROC_LOOKUP          4
 102 #define NFSPROC_READLINK        5
 103 #define NFSPROC_READ            6
 104 #define NFSPROC_WRITECACHE      NFSPROC_NOOP    /* Obsolete */
 105 #define NFSPROC_WRITE           8
 106 #define NFSPROC_CREATE          9
 107 #define NFSPROC_REMOVE          10
 108 #define NFSPROC_RENAME          11
 109 #define NFSPROC_LINK            12
 110 #define NFSPROC_SYMLINK         13
 111 #define NFSPROC_MKDIR           14
 112 #define NFSPROC_RMDIR           15
 113 #define NFSPROC_READDIR         16
 114 #define NFSPROC_STATFS          17
 115
 116 /* NQ nfs numbers */
 117 #define NQNFSPROC_READDIRLOOK   18
 118 #define NQNFSPROC_GETLEASE      19
 119 #define NQNFSPROC_VACATED       20
 120 #define NQNFSPROC_EVICTED       21
 121 #define NQNFSPROC_ACCESS        22
 122
 123 #define NFS_NPROCS              23
 124 /* Conversion macros */
 125 extern int              vttoif_tab[];
 126 #define vtonfs_mode(t,m) \
 127                 txdr_unsigned(((t) == VFIFO) ? MAKEIMODE(VCHR, (m)) : \
 128                                 MAKEIMODE((t), (m)))
 129 #define nfstov_mode(a)  (fxdr_unsigned(u_short, (a))&07777)
 130 #define vtonfs_type(a)  txdr_unsigned(nfs_type[((int32_t)(a))])
 131 #define nfstov_type(a)  ntov_type[fxdr_unsigned(u_int32_t,(a))&0x7]
 132
 133 /* File types */
 134 typedef enum {
 135     NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5
 136 } tcpdump_nfstype;
 137
 138 /* Structs for common parts of the rpc's */
 139 struct nfsv2_time {
 140         u_int32_t nfs_sec;
 141         u_int32_t nfs_usec;
 142 };
 143
 144 struct nqnfs_time {
 145         u_int32_t nq_sec;
 146         u_int32_t nq_nsec;
 147 };
 148
 149 /*
 150  * File attributes and setable attributes. These structures cover both
 151  * NFS version 2 and the NQNFS protocol. Note that the union is only
 152  * used to that one pointer can refer to both variants. These structures
 153  * go out on the wire and must be densely packed, so no quad data types
 154  * are used. (all fields are int32_t or u_int32_t's or structures of same)
 155  * NB: You can't do sizeof(struct nfsv2_fattr), you must use the
 156  *     NFSX_FATTR(isnq) macro.
 157  */
 158 struct nfsv2_fattr {
 159         u_int32_t fa_type;
 160         u_int32_t fa_mode;
 161         u_int32_t fa_nlink;
 162         u_int32_t fa_uid;
 163         u_int32_t fa_gid;
 164         union {
 165                 struct {
 166                         u_int32_t nfsfa_size;
 167                         u_int32_t nfsfa_blocksize;
 168                         u_int32_t nfsfa_rdev;
 169                         u_int32_t nfsfa_blocks;
 170                         u_int32_t nfsfa_fsid;
 171                         u_int32_t nfsfa_fileid;
 172                         struct nfsv2_time nfsfa_atime;
 173                         struct nfsv2_time nfsfa_mtime;
 174                         struct nfsv2_time nfsfa_ctime;
 175                 } fa_nfsv2;
 176                 struct {
 177                         struct {
 178                                 u_int32_t nqfa_qsize[2];
 179                         } nqfa_size;
 180                         u_int32_t nqfa_blocksize;
 181                         u_int32_t nqfa_rdev;
 182                         struct {
 183                                 u_int32_t       nqfa_qbytes[2];
 184                         } nqfa_bytes;
 185                         u_int32_t nqfa_fsid;
 186                         u_int32_t nqfa_fileid;
 187                         struct nqnfs_time nqfa_atime;
 188                         struct nqnfs_time nqfa_mtime;
 189                         struct nqnfs_time nqfa_ctime;
 190                         u_int32_t nqfa_flags;
 191                         u_int32_t nqfa_gen;
 192                         struct {
 193                                 u_int32_t nqfa_qfilerev[2];
 194                         } nqfa_filerev;
 195                 } fa_nqnfs;
 196         } fa_un;
 197 };
 198
 199 /* and some ugly defines for accessing union components */
 200 #define fa_nfssize              fa_un.fa_nfsv2.nfsfa_size
 201 #define fa_nfsblocksize         fa_un.fa_nfsv2.nfsfa_blocksize
 202 #define fa_nfsrdev              fa_un.fa_nfsv2.nfsfa_rdev
 203 #define fa_nfsblocks            fa_un.fa_nfsv2.nfsfa_blocks
 204 #define fa_nfsfsid              fa_un.fa_nfsv2.nfsfa_fsid
 205 #define fa_nfsfileid            fa_un.fa_nfsv2.nfsfa_fileid
 206 #define fa_nfsatime             fa_un.fa_nfsv2.nfsfa_atime
 207 #define fa_nfsmtime             fa_un.fa_nfsv2.nfsfa_mtime
 208 #define fa_nfsctime             fa_un.fa_nfsv2.nfsfa_ctime
 209 #define fa_nqsize               fa_un.fa_nqnfs.nqfa_size
 210 #define fa_nqblocksize          fa_un.fa_nqnfs.nqfa_blocksize
 211 #define fa_nqrdev               fa_un.fa_nqnfs.nqfa_rdev
 212 #define fa_nqbytes              fa_un.fa_nqnfs.nqfa_bytes
 213 #define fa_nqfsid               fa_un.fa_nqnfs.nqfa_fsid
 214 #define fa_nqfileid             fa_un.fa_nqnfs.nqfa_fileid
 215 #define fa_nqatime              fa_un.fa_nqnfs.nqfa_atime
 216 #define fa_nqmtime              fa_un.fa_nqnfs.nqfa_mtime
 217 #define fa_nqctime              fa_un.fa_nqnfs.nqfa_ctime
 218 #define fa_nqflags              fa_un.fa_nqnfs.nqfa_flags
 219 #define fa_nqgen                fa_un.fa_nqnfs.nqfa_gen
 220 #define fa_nqfilerev            fa_un.fa_nqnfs.nqfa_filerev
 221
 222 struct nfsv2_sattr {
 223         u_int32_t sa_mode;
 224         u_int32_t sa_uid;
 225         u_int32_t sa_gid;
 226         union {
 227                 struct {
 228                         u_int32_t nfssa_size;
 229                         struct nfsv2_time nfssa_atime;
 230                         struct nfsv2_time nfssa_mtime;
 231                 } sa_nfsv2;
 232                 struct {
 233                         struct {
 234                                 u_int32_t nqsa_qsize[2];
 235                         } nqsa_size;
 236                         struct nqnfs_time nqsa_atime;
 237                         struct nqnfs_time nqsa_mtime;
 238                         u_int32_t nqsa_flags;
 239                         u_int32_t nqsa_rdev;
 240                 } sa_nqnfs;
 241         } sa_un;
 242 };
 243
 244 /* and some ugly defines for accessing the unions */
 245 #define sa_nfssize              sa_un.sa_nfsv2.nfssa_size
 246 #define sa_nfsatime             sa_un.sa_nfsv2.nfssa_atime
 247 #define sa_nfsmtime             sa_un.sa_nfsv2.nfssa_mtime
 248 #define sa_nqsize               sa_un.sa_nqnfs.nqsa_size
 249 #define sa_nqatime              sa_un.sa_nqnfs.nqsa_atime
 250 #define sa_nqmtime              sa_un.sa_nqnfs.nqsa_mtime
 251 #define sa_nqflags              sa_un.sa_nqnfs.nqsa_flags
 252 #define sa_nqrdev               sa_un.sa_nqnfs.nqsa_rdev
 253
 254 struct nfsv2_statfs {
 255         u_int32_t sf_tsize;
 256         u_int32_t sf_bsize;
 257         u_int32_t sf_blocks;
 258         u_int32_t sf_bfree;
 259         u_int32_t sf_bavail;
 260         u_int32_t sf_files;     /* Nqnfs only */
 261         u_int32_t sf_ffree;     /* ditto      */
 262 };