net/nfs.h

   1 /*
   2  * (C) Masami Komiya <mkomiya@sonare.it> 2004
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2, or (at
   7  * your option) any later version.
   8  */
   9
  10 #ifndef __NFS_H__
  11 #define __NFS_H__
  12
  13 #define SUNRPC_PORT     111
  14
  15 #define PROG_PORTMAP    100000
  16 #define PROG_NFS        100003
  17 #define PROG_MOUNT      100005
  18
  19 #define MSG_CALL        0
  20 #define MSG_REPLY       1
  21
  22 #define PORTMAP_GETPORT 3
  23
  24 #define MOUNT_ADDENTRY  1
  25 #define MOUNT_UMOUNTALL 4
  26
  27 #define NFS_LOOKUP      4
  28 #define NFS_READLINK    5
  29 #define NFS_READ        6
  30
  31 #define NFS_FHSIZE      32
  32
  33 #define NFSERR_PERM     1
  34 #define NFSERR_NOENT    2
  35 #define NFSERR_ACCES    13
  36 #define NFSERR_ISDIR    21
  37 #define NFSERR_INVAL    22
  38
  39 /* Block size used for NFS read accesses.  A RPC reply packet (including  all
  40  * headers) must fit within a single Ethernet frame to avoid fragmentation.
  41  * Chosen to be a power of two, as most NFS servers are optimized for this.  */
  42 #define NFS_READ_SIZE   1024
  43
  44 #define NFS_MAXLINKDEPTH 16
  45
  46 struct rpc_t {
  47         union {
  48                 uint8_t data[2048];
  49                 struct {
  50                         uint32_t id;
  51                         uint32_t type;
  52                         uint32_t rpcvers;
  53                         uint32_t prog;
  54                         uint32_t vers;
  55                         uint32_t proc;
  56                         uint32_t data[1];
  57                 } call;
  58                 struct {
  59                         uint32_t id;
  60                         uint32_t type;
  61                         uint32_t rstatus;
  62                         uint32_t verifier;
  63                         uint32_t v2;
  64                         uint32_t astatus;
  65                         uint32_t data[19];
  66                 } reply;
  67         } u;
  68 };
  69 extern void     NfsStart (void);        /* Begin NFS */
  70
  71
  72 /**********************************************************************/
  73
  74 #endif /* __NFS_H__ */