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

   1 /*
   2  * Copyright (c) 2009, Sun Microsystems, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are met:
   7  * - Redistributions of source code must retain the above copyright notice,
   8  *   this list of conditions and the following disclaimer.
   9  * - Redistributions in binary form must reproduce the above copyright notice,
  10  *   this list of conditions and the following disclaimer in the documentation
  11  *   and/or other materials provided with the distribution.
  12  * - Neither the name of Sun Microsystems, Inc. nor the names of its
  13  *   contributors may be used to endorse or promote products derived
  14  *   from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  *      from: @(#)rpc_msg.h 1.7 86/07/16 SMI
  29  *      from: @(#)rpc_msg.h     2.1 88/07/29 4.0 RPCSRC
  30  * $FreeBSD: src/include/rpc/rpc_msg.h,v 1.11.2.1 1999/08/29 14:39:07 peter Exp $
  31  */
  32
  33 /*
  34  * rpc_msg.h
  35  * rpc message definition
  36  *
  37  * Copyright (C) 1984, Sun Microsystems, Inc.
  38  */
  39
  40 #define SUNRPC_MSG_VERSION      ((uint32_t) 2)
  41
  42 /*
  43  * Bottom up definition of an rpc message.
  44  * NOTE: call and reply use the same overall struct but
  45  * different parts of unions within it.
  46  */
  47
  48 enum sunrpc_msg_type {
  49         SUNRPC_CALL=0,
  50         SUNRPC_REPLY=1
  51 };
  52
  53 enum sunrpc_reply_stat {
  54         SUNRPC_MSG_ACCEPTED=0,
  55         SUNRPC_MSG_DENIED=1
  56 };
  57
  58 enum sunrpc_accept_stat {
  59         SUNRPC_SUCCESS=0,
  60         SUNRPC_PROG_UNAVAIL=1,
  61         SUNRPC_PROG_MISMATCH=2,
  62         SUNRPC_PROC_UNAVAIL=3,
  63         SUNRPC_GARBAGE_ARGS=4,
  64         SUNRPC_SYSTEM_ERR=5
  65 };
  66
  67 enum sunrpc_reject_stat {
  68         SUNRPC_RPC_MISMATCH=0,
  69         SUNRPC_AUTH_ERROR=1
  70 };
  71
  72 /*
  73  * Reply part of an rpc exchange
  74  */
  75
  76 /*
  77  * Reply to an rpc request that was rejected by the server.
  78  */
  79 struct sunrpc_rejected_reply {
  80         nd_uint32_t              rj_stat;       /* enum reject_stat */
  81         union {
  82                 struct {
  83                         nd_uint32_t low;
  84                         nd_uint32_t high;
  85                 } RJ_versions;
  86                 nd_uint32_t RJ_why;  /* enum auth_stat - why authentication did not work */
  87         } ru;
  88 #define rj_vers ru.RJ_versions
  89 #define rj_why  ru.RJ_why
  90 };
  91
  92 /*
  93  * Body of a reply to an rpc request.
  94  */
  95 struct sunrpc_reply_body {
  96         nd_uint32_t     rp_stat;                /* enum reply_stat */
  97         struct sunrpc_rejected_reply rp_reject; /* if rejected */
  98 };
  99
 100 /*
 101  * Body of an rpc request call.
 102  */
 103 struct sunrpc_call_body {
 104         nd_uint32_t cb_rpcvers; /* must be equal to two */
 105         nd_uint32_t cb_prog;
 106         nd_uint32_t cb_vers;
 107         nd_uint32_t cb_proc;
 108         struct sunrpc_opaque_auth cb_cred;
 109         /* followed by opaque verifier */
 110 };
 111
 112 /*
 113  * The rpc message
 114  */
 115 struct sunrpc_msg {
 116         nd_uint32_t             rm_xid;
 117         nd_uint32_t             rm_direction;   /* enum msg_type */
 118         union {
 119                 struct sunrpc_call_body RM_cmb;
 120                 struct sunrpc_reply_body RM_rmb;
 121         } ru;
 122 #define rm_call         ru.RM_cmb
 123 #define rm_reply        ru.RM_rmb
 124 };
 125 #define acpted_rply     ru.RM_rmb.ru.RP_ar
 126 #define rjcted_rply     ru.RM_rmb.ru.RP_dr