include/linux/sunrpc/msg_prot.h

   1 /*
   2  * linux/include/net/sunrpc/msg_prot.h
   3  *
   4  * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
   5  */
   6
   7 #ifndef _LINUX_SUNRPC_MSGPROT_H_
   8 #define _LINUX_SUNRPC_MSGPROT_H_
   9
  10 #ifdef __KERNEL__ /* user programs should get these from the rpc header files */
  11
  12 #define RPC_VERSION 2
  13
  14 /* spec defines authentication flavor as an unsigned 32 bit integer */
  15 typedef u32     rpc_authflavor_t;
  16
  17 enum rpc_auth_flavors {
  18         RPC_AUTH_NULL  = 0,
  19         RPC_AUTH_UNIX  = 1,
  20         RPC_AUTH_SHORT = 2,
  21         RPC_AUTH_DES   = 3,
  22         RPC_AUTH_KRB   = 4,
  23         RPC_AUTH_GSS   = 6,
  24         RPC_AUTH_MAXFLAVOR = 8,
  25         /* pseudoflavors: */
  26         RPC_AUTH_GSS_KRB5  = 390003,
  27         RPC_AUTH_GSS_KRB5I = 390004,
  28         RPC_AUTH_GSS_KRB5P = 390005,
  29         RPC_AUTH_GSS_LKEY  = 390006,
  30         RPC_AUTH_GSS_LKEYI = 390007,
  31         RPC_AUTH_GSS_LKEYP = 390008,
  32         RPC_AUTH_GSS_SPKM  = 390009,
  33         RPC_AUTH_GSS_SPKMI = 390010,
  34         RPC_AUTH_GSS_SPKMP = 390011,
  35 };
  36
  37 enum rpc_msg_type {
  38         RPC_CALL = 0,
  39         RPC_REPLY = 1
  40 };
  41
  42 enum rpc_reply_stat {
  43         RPC_MSG_ACCEPTED = 0,
  44         RPC_MSG_DENIED = 1
  45 };
  46
  47 enum rpc_accept_stat {
  48         RPC_SUCCESS = 0,
  49         RPC_PROG_UNAVAIL = 1,
  50         RPC_PROG_MISMATCH = 2,
  51         RPC_PROC_UNAVAIL = 3,
  52         RPC_GARBAGE_ARGS = 4,
  53         RPC_SYSTEM_ERR = 5
  54 };
  55
  56 enum rpc_reject_stat {
  57         RPC_MISMATCH = 0,
  58         RPC_AUTH_ERROR = 1
  59 };
  60
  61 enum rpc_auth_stat {
  62         RPC_AUTH_OK = 0,
  63         RPC_AUTH_BADCRED = 1,
  64         RPC_AUTH_REJECTEDCRED = 2,
  65         RPC_AUTH_BADVERF = 3,
  66         RPC_AUTH_REJECTEDVERF = 4,
  67         RPC_AUTH_TOOWEAK = 5,
  68         /* RPCSEC_GSS errors */
  69         RPCSEC_GSS_CREDPROBLEM = 13,
  70         RPCSEC_GSS_CTXPROBLEM = 14
  71 };
  72
  73 #define RPC_PMAP_PROGRAM        100000
  74 #define RPC_PMAP_VERSION        2
  75 #define RPC_PMAP_PORT           111
  76
  77 #define RPC_MAXNETNAMELEN       256
  78
  79 /*
  80  * From RFC 1831:
  81  *
  82  * "A record is composed of one or more record fragments.  A record
  83  *  fragment is a four-byte header followed by 0 to (2**31) - 1 bytes of
  84  *  fragment data.  The bytes encode an unsigned binary number; as with
  85  *  XDR integers, the byte order is from highest to lowest.  The number
  86  *  encodes two values -- a boolean which indicates whether the fragment
  87  *  is the last fragment of the record (bit value 1 implies the fragment
  88  *  is the last fragment) and a 31-bit unsigned binary value which is the
  89  *  length in bytes of the fragment's data.  The boolean value is the
  90  *  highest-order bit of the header; the length is the 31 low-order bits.
  91  *  (Note that this record specification is NOT in XDR standard form!)"
  92  *
  93  * The Linux RPC client always sends its requests in a single record
  94  * fragment, limiting the maximum payload size for stream transports to
  95  * 2GB.
  96  */
  97
  98 typedef u32     rpc_fraghdr;
  99
 100 #define RPC_LAST_STREAM_FRAGMENT        (1U << 31)
 101 #define RPC_FRAGMENT_SIZE_MASK          (~RPC_LAST_STREAM_FRAGMENT)
 102 #define RPC_MAX_FRAGMENT_SIZE           ((1U << 31) - 1)
 103
 104 #endif /* __KERNEL__ */
 105 #endif /* _LINUX_SUNRPC_MSGPROT_H_ */