171 lines
4.6 KiB
C
171 lines
4.6 KiB
C
/* $NetBSD: misc_rpc.c,v 1.1.1.3 1998/08/08 22:05:23 christos Exp $ */
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/*
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* Copyright (c) 1997-1998 Erez Zadok
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* Copyright (c) 1990 Jan-Simon Pendry
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* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry at Imperial College, London.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* %W% (Berkeley) %G%
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*
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* Id: misc_rpc.c,v 5.2.2.1 1992/02/09 15:08:40 jsp beta
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*
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*/
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/*
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* Additions to Sun RPC.
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <am_defs.h>
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#include <amu.h>
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/*
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* Some systems renamed _seterr_reply to __seterr_reply (with two
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* leading underscores)
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*/
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#if !defined(HAVE__SETERR_REPLY) && defined(HAVE___SETERR_REPLY)
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# define _seterr_reply __seterr_reply
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#endif /* !defined(HAVE__SETERR_REPLY) && defined(HAVE___SETERR_REPLY) */
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void
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rpc_msg_init(struct rpc_msg *mp, u_long prog, u_long vers, u_long proc)
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{
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/*
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* Initialise the message
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*/
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memset((voidp) mp, 0, sizeof(*mp));
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mp->rm_xid = 0;
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mp->rm_direction = CALL;
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mp->rm_call.cb_rpcvers = RPC_MSG_VERSION;
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mp->rm_call.cb_prog = prog;
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mp->rm_call.cb_vers = vers;
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mp->rm_call.cb_proc = proc;
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}
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/*
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* Field reply to call to mountd
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*/
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int
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pickup_rpc_reply(voidp pkt, int len, voidp where, XDRPROC_T_TYPE where_xdr)
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{
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XDR reply_xdr;
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int ok;
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struct rpc_err err;
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struct rpc_msg reply_msg;
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int error = 0;
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/* memset((voidp) &err, 0, sizeof(err)); */
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memset((voidp) &reply_msg, 0, sizeof(reply_msg));
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memset((voidp) &reply_xdr, 0, sizeof(reply_xdr));
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reply_msg.acpted_rply.ar_results.where = (caddr_t) where;
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reply_msg.acpted_rply.ar_results.proc = where_xdr;
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xdrmem_create(&reply_xdr, pkt, len, XDR_DECODE);
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ok = xdr_replymsg(&reply_xdr, &reply_msg);
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if (!ok) {
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error = EIO;
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goto drop;
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}
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_seterr_reply(&reply_msg, &err);
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if (err.re_status != RPC_SUCCESS) {
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error = EIO;
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goto drop;
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}
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drop:
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if (reply_msg.rm_reply.rp_stat == MSG_ACCEPTED &&
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reply_msg.acpted_rply.ar_verf.oa_base) {
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reply_xdr.x_op = XDR_FREE;
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(void) xdr_opaque_auth(&reply_xdr,
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&reply_msg.acpted_rply.ar_verf);
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}
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xdr_destroy(&reply_xdr);
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return error;
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}
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int
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make_rpc_packet(char *buf, int buflen, u_long proc, struct rpc_msg *mp, voidp arg, XDRPROC_T_TYPE arg_xdr, AUTH *auth)
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{
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XDR msg_xdr;
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int len;
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xdrmem_create(&msg_xdr, buf, buflen, XDR_ENCODE);
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/*
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* Basic protocol header
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*/
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if (!xdr_callhdr(&msg_xdr, mp))
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return -EIO;
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/*
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* Called procedure number
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*/
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if (!xdr_enum(&msg_xdr, (enum_t *) & proc))
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return -EIO;
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/*
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* Authorization
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*/
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if (!AUTH_MARSHALL(auth, &msg_xdr))
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return -EIO;
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/*
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* Arguments
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*/
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if (!(*arg_xdr) (&msg_xdr, arg))
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return -EIO;
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/*
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* Determine length
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*/
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len = xdr_getpos(&msg_xdr);
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/*
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* Throw away xdr
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*/
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xdr_destroy(&msg_xdr);
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return len;
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}
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