src/include/nfs.h

   1 #ifndef _NFS_H
   2 #define _NFS_H
   3
   4 #define SUNRPC_PORT     111
   5
   6 #define PROG_PORTMAP    100000
   7 #define PROG_NFS        100003
   8 #define PROG_MOUNT      100005
   9
  10 #define MSG_CALL        0
  11 #define MSG_REPLY       1
  12
  13 #define PORTMAP_GETPORT 3
  14
  15 #define MOUNT_ADDENTRY  1
  16 #define MOUNT_UMOUNTALL 4
  17
  18 #define NFS_LOOKUP      4
  19 #define NFS_READLINK    5
  20 #define NFS_READ        6
  21
  22 #define NFS_FHSIZE      32
  23
  24 #define NFSERR_PERM     1
  25 #define NFSERR_NOENT    2
  26 #define NFSERR_ACCES    13
  27 #define NFSERR_ISDIR    21
  28 #define NFSERR_INVAL    22
  29
  30 /* Block size used for NFS read accesses.  A RPC reply packet (including  all
  31  * headers) must fit within a single Ethernet frame to avoid fragmentation.
  32  * Chosen to be a power of two, as most NFS servers are optimized for this.  */
  33 #define NFS_READ_SIZE   1024
  34
  35 #define NFS_MAXLINKDEPTH 16
  36
  37 struct rpc_t {
  38         struct iphdr ip;
  39         struct udphdr udp;
  40         union {
  41                 uint8_t  data[300];             /* longest RPC call must fit!!!! */
  42                 struct {
  43                         uint32_t id;
  44                         uint32_t type;
  45                         uint32_t rpcvers;
  46                         uint32_t prog;
  47                         uint32_t vers;
  48                         uint32_t proc;
  49                         uint32_t data[1];
  50                 } call;
  51                 struct {
  52                         uint32_t id;
  53                         uint32_t type;
  54                         uint32_t rstatus;
  55                         uint32_t verifier;
  56                         uint32_t v2;
  57                         uint32_t astatus;
  58                         uint32_t data[1];
  59                 } reply;
  60         } u;
  61 } PACKED;
  62
  63 #endif  /* _NFS_H */