1/* @(#)rpc_msg.h 2.1 88/07/29 4.0 RPCSRC */ 2/* 3 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 4 * unrestricted use provided that this legend is included on all tape 5 * media and as a part of the software program in whole or part. Users 6 * may copy or modify Sun RPC without charge, but are not authorized 7 * to license or distribute it to anyone else except as part of a product or 8 * program developed by the user. 9 * 10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 13 * 14 * Sun RPC is provided with no support and without any obligation on the 15 * part of Sun Microsystems, Inc. to assist in its use, correction, 16 * modification or enhancement. 17 * 18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 20 * OR ANY PART THEREOF. 21 * 22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 23 * or profits or other special, indirect and consequential damages, even if 24 * Sun has been advised of the possibility of such damages. 25 * 26 * Sun Microsystems, Inc. 27 * 2550 Garcia Avenue 28 * Mountain View, California 94043 29 */ 30/* @(#)rpc_msg.h 1.7 86/07/16 SMI */ 31 32#ifndef _RPC_MSG_H 33#define _RPC_MSG_H 1 34 35#include <sys/cdefs.h> 36 37#include <rpc/xdr.h> 38#include <rpc/clnt.h> 39 40/* 41 * rpc_msg.h 42 * rpc message definition 43 * 44 * Copyright (C) 1984, Sun Microsystems, Inc. 45 */ 46 47#define RPC_MSG_VERSION ((u_long) 2) 48#define RPC_SERVICE_PORT ((u_short) 2048) 49 50__BEGIN_DECLS 51 52/* 53 * Bottom up definition of an rpc message. 54 * NOTE: call and reply use the same overall struct but 55 * different parts of unions within it. 56 */ 57 58enum msg_type { 59 CALL=0, 60 REPLY=1 61}; 62 63enum reply_stat { 64 MSG_ACCEPTED=0, 65 MSG_DENIED=1 66}; 67 68enum accept_stat { 69 SUCCESS=0, 70 PROG_UNAVAIL=1, 71 PROG_MISMATCH=2, 72 PROC_UNAVAIL=3, 73 GARBAGE_ARGS=4, 74 SYSTEM_ERR=5 75}; 76 77enum reject_stat { 78 RPC_MISMATCH=0, 79 AUTH_ERROR=1 80}; 81 82/* 83 * Reply part of an rpc exchange 84 */ 85 86/* 87 * Reply to an rpc request that was accepted by the server. 88 * Note: there could be an error even though the request was 89 * accepted. 90 */ 91struct accepted_reply { 92 struct opaque_auth ar_verf; 93 enum accept_stat ar_stat; 94 union { 95 struct { 96 u_long low; 97 u_long high; 98 } AR_versions; 99 struct { 100 caddr_t where; 101 xdrproc_t proc; 102 } AR_results; 103 /* and many other null cases */ 104 } ru; 105#define ar_results ru.AR_results 106#define ar_vers ru.AR_versions 107}; 108 109/* 110 * Reply to an rpc request that was rejected by the server. 111 */ 112struct rejected_reply { 113 enum reject_stat rj_stat; 114 union { 115 struct { 116 u_long low; 117 u_long high; 118 } RJ_versions; 119 enum auth_stat RJ_why; /* why authentication did not work */ 120 } ru; 121#define rj_vers ru.RJ_versions 122#define rj_why ru.RJ_why 123}; 124 125/* 126 * Body of a reply to an rpc request. 127 */ 128struct reply_body { 129 enum reply_stat rp_stat; 130 union { 131 struct accepted_reply RP_ar; 132 struct rejected_reply RP_dr; 133 } ru; 134#define rp_acpt ru.RP_ar 135#define rp_rjct ru.RP_dr 136}; 137 138/* 139 * Body of an rpc request call. 140 */ 141struct call_body { 142 u_long cb_rpcvers; /* must be equal to two */ 143 u_long cb_prog; 144 u_long cb_vers; 145 u_long cb_proc; 146 struct opaque_auth cb_cred; 147 struct opaque_auth cb_verf; /* protocol specific - provided by client */ 148}; 149 150/* 151 * The rpc message 152 */ 153struct rpc_msg { 154 u_long rm_xid; 155 enum msg_type rm_direction; 156 union { 157 struct call_body RM_cmb; 158 struct reply_body RM_rmb; 159 } ru; 160#define rm_call ru.RM_cmb 161#define rm_reply ru.RM_rmb 162}; 163#define acpted_rply ru.RM_rmb.ru.RP_ar 164#define rjcted_rply ru.RM_rmb.ru.RP_dr 165 166 167/* 168 * XDR routine to handle a rpc message. 169 * xdr_callmsg(xdrs, cmsg) 170 * XDR *xdrs; 171 * struct rpc_msg *cmsg; 172 */ 173extern bool_t xdr_callmsg (XDR *__xdrs, struct rpc_msg *__cmsg) __THROW; 174 175/* 176 * XDR routine to pre-serialize the static part of a rpc message. 177 * xdr_callhdr(xdrs, cmsg) 178 * XDR *xdrs; 179 * struct rpc_msg *cmsg; 180 */ 181extern bool_t xdr_callhdr (XDR *__xdrs, struct rpc_msg *__cmsg) __THROW; 182 183/* 184 * XDR routine to handle a rpc reply. 185 * xdr_replymsg(xdrs, rmsg) 186 * XDR *xdrs; 187 * struct rpc_msg *rmsg; 188 */ 189extern bool_t xdr_replymsg (XDR *__xdrs, struct rpc_msg *__rmsg) __THROW; 190 191/* 192 * Fills in the error part of a reply message. 193 * _seterr_reply(msg, error) 194 * struct rpc_msg *msg; 195 * struct rpc_err *error; 196 */ 197extern void _seterr_reply (struct rpc_msg *__msg, struct rpc_err *__error) 198 __THROW; 199 200__END_DECLS 201 202#endif /* rpc/rpc_msg.h */ 203