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/* $NetBSD: rpc_msg.h,v 1.11 2000/06/02 22:57:56 fvdl Exp $ */
/*-
* Copyright (c) 2009, Sun Microsystems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of Sun Microsystems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* from: @(#)rpc_msg.h 1.7 86/07/16 SMI
* from: @(#)rpc_msg.h 2.1 88/07/29 4.0 RPCSRC
* $FreeBSD$
*/
/*
* rpc_msg.h
* rpc message definition
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
#ifndef _RPC_RPC_MSG_H
#define _RPC_RPC_MSG_H
#define RPC_MSG_VERSION ((uint32_t) 2)
#define RPC_SERVICE_PORT ((u_short) 2048)
/*
* Bottom up definition of an rpc message.
* NOTE: call and reply use the same overall stuct but
* different parts of unions within it.
*/
enum msg_type {
CALL=0,
REPLY=1
};
enum reply_stat {
MSG_ACCEPTED=0,
MSG_DENIED=1
};
enum accept_stat {
SUCCESS=0,
PROG_UNAVAIL=1,
PROG_MISMATCH=2,
PROC_UNAVAIL=3,
GARBAGE_ARGS=4,
SYSTEM_ERR=5
};
enum reject_stat {
RPC_MISMATCH=0,
AUTH_ERROR=1
};
/*
* Reply part of an rpc exchange
*/
/*
* Reply to an rpc request that was accepted by the server.
* Note: there could be an error even though the request was
* accepted.
*/
struct accepted_reply {
struct opaque_auth ar_verf;
enum accept_stat ar_stat;
union {
struct {
rpcvers_t low;
rpcvers_t high;
} AR_versions;
struct {
caddr_t where;
xdrproc_t proc;
} AR_results;
/* and many other null cases */
} ru;
#define ar_results ru.AR_results
#define ar_vers ru.AR_versions
};
/*
* Reply to an rpc request that was rejected by the server.
*/
struct rejected_reply {
enum reject_stat rj_stat;
union {
struct {
rpcvers_t low;
rpcvers_t high;
} RJ_versions;
enum auth_stat RJ_why; /* why authentication did not work */
} ru;
#define rj_vers ru.RJ_versions
#define rj_why ru.RJ_why
};
/*
* Body of a reply to an rpc request.
*/
struct reply_body {
enum reply_stat rp_stat;
union {
struct accepted_reply RP_ar;
struct rejected_reply RP_dr;
} ru;
#define rp_acpt ru.RP_ar
#define rp_rjct ru.RP_dr
};
/*
* Body of an rpc request call.
*/
struct call_body {
rpcvers_t cb_rpcvers; /* must be equal to two */
rpcprog_t cb_prog;
rpcvers_t cb_vers;
rpcproc_t cb_proc;
struct opaque_auth cb_cred;
struct opaque_auth cb_verf; /* protocol specific - provided by client */
};
/*
* The rpc message
*/
struct rpc_msg {
uint32_t rm_xid;
enum msg_type rm_direction;
union {
struct call_body RM_cmb;
struct reply_body RM_rmb;
} ru;
#define rm_call ru.RM_cmb
#define rm_reply ru.RM_rmb
};
#define acpted_rply ru.RM_rmb.ru.RP_ar
#define rjcted_rply ru.RM_rmb.ru.RP_dr
__BEGIN_DECLS
/*
* XDR routine to handle a rpc message.
* xdr_callmsg(xdrs, cmsg)
* XDR *xdrs;
* struct rpc_msg *cmsg;
*/
extern bool_t xdr_callmsg(XDR *, struct rpc_msg *);
/*
* XDR routine to pre-serialize the static part of a rpc message.
* xdr_callhdr(xdrs, cmsg)
* XDR *xdrs;
* struct rpc_msg *cmsg;
*/
extern bool_t xdr_callhdr(XDR *, struct rpc_msg *);
/*
* XDR routine to handle a rpc reply.
* xdr_replymsg(xdrs, rmsg)
* XDR *xdrs;
* struct rpc_msg *rmsg;
*/
extern bool_t xdr_replymsg(XDR *, struct rpc_msg *);
/*
* XDR routine to handle an accepted rpc reply.
* xdr_accepted_reply(xdrs, rej)
* XDR *xdrs;
* struct accepted_reply *rej;
*/
extern bool_t xdr_accepted_reply(XDR *, struct accepted_reply *);
/*
* XDR routine to handle a rejected rpc reply.
* xdr_rejected_reply(xdrs, rej)
* XDR *xdrs;
* struct rejected_reply *rej;
*/
extern bool_t xdr_rejected_reply(XDR *, struct rejected_reply *);
/*
* Fills in the error part of a reply message.
* _seterr_reply(msg, error)
* struct rpc_msg *msg;
* struct rpc_err *error;
*/
extern enum clnt_stat _seterr_reply(struct rpc_msg *, struct rpc_err *);
__END_DECLS
#endif /* !_RPC_RPC_MSG_H */
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