236 lines
6.6 KiB
C
236 lines
6.6 KiB
C
/* $NetBSD: rpcb_svc.c,v 1.1 2000/06/02 23:15:41 fvdl Exp $ */
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/* $FreeBSD$ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2009, Sun Microsystems, Inc.
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* All rights reserved.
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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 are met:
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of Sun Microsystems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1986 - 1991 by Sun Microsystems, Inc.
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*/
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/* #ident "@(#)rpcb_svc.c 1.16 93/07/05 SMI" */
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/*
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* rpcb_svc.c
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* The server procedure for the version 3 rpcbind (TLI).
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*
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* It maintains a separate list of all the registered services with the
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* version 3 of rpcbind.
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*/
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#include <sys/types.h>
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#include <rpc/rpc.h>
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#include <rpc/rpcb_prot.h>
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#include <netconfig.h>
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#include <stdio.h>
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#ifdef RPCBIND_DEBUG
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#include <stdlib.h>
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#endif
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#include <string.h>
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#include "rpcbind.h"
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static void *rpcbproc_getaddr_3_local(void *, struct svc_req *, SVCXPRT *,
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rpcvers_t);
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static void *rpcbproc_dump_3_local(void *, struct svc_req *, SVCXPRT *,
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rpcvers_t);
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/*
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* Called by svc_getreqset. There is a separate server handle for
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* every transport that it waits on.
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*/
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void
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rpcb_service_3(struct svc_req *rqstp, SVCXPRT *transp)
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{
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union {
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RPCB rpcbproc_set_3_arg;
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RPCB rpcbproc_unset_3_arg;
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RPCB rpcbproc_getaddr_3_local_arg;
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struct rpcb_rmtcallargs rpcbproc_callit_3_arg;
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char *rpcbproc_uaddr2taddr_3_arg;
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struct netbuf rpcbproc_taddr2uaddr_3_arg;
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} argument;
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char *result;
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xdrproc_t xdr_argument, xdr_result;
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void *(*local)(void *, struct svc_req *, SVCXPRT *, rpcvers_t);
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rpcbs_procinfo(RPCBVERS_3_STAT, rqstp->rq_proc);
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switch (rqstp->rq_proc) {
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case NULLPROC:
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/*
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* Null proc call
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*/
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#ifdef RPCBIND_DEBUG
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if (debugging)
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fprintf(stderr, "RPCBPROC_NULL\n");
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#endif
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/* This call just logs, no actual checks */
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check_access(transp, rqstp->rq_proc, NULL, RPCBVERS);
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(void) svc_sendreply(transp, (xdrproc_t)xdr_void, (char *)NULL);
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return;
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case RPCBPROC_SET:
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xdr_argument = (xdrproc_t )xdr_rpcb;
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xdr_result = (xdrproc_t )xdr_bool;
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local = rpcbproc_set_com;
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break;
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case RPCBPROC_UNSET:
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xdr_argument = (xdrproc_t)xdr_rpcb;
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xdr_result = (xdrproc_t)xdr_bool;
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local = rpcbproc_unset_com;
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break;
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case RPCBPROC_GETADDR:
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xdr_argument = (xdrproc_t)xdr_rpcb;
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xdr_result = (xdrproc_t)xdr_wrapstring;
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local = rpcbproc_getaddr_3_local;
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break;
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case RPCBPROC_DUMP:
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#ifdef RPCBIND_DEBUG
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if (debugging)
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fprintf(stderr, "RPCBPROC_DUMP\n");
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#endif
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xdr_argument = (xdrproc_t)xdr_void;
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xdr_result = (xdrproc_t)xdr_rpcblist_ptr;
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local = rpcbproc_dump_3_local;
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break;
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case RPCBPROC_CALLIT:
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rpcbproc_callit_com(rqstp, transp, rqstp->rq_proc, RPCBVERS);
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return;
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case RPCBPROC_GETTIME:
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#ifdef RPCBIND_DEBUG
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if (debugging)
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fprintf(stderr, "RPCBPROC_GETTIME\n");
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#endif
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xdr_argument = (xdrproc_t)xdr_void;
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xdr_result = (xdrproc_t)xdr_u_long;
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local = rpcbproc_gettime_com;
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break;
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case RPCBPROC_UADDR2TADDR:
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#ifdef RPCBIND_DEBUG
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if (debugging)
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fprintf(stderr, "RPCBPROC_UADDR2TADDR\n");
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#endif
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xdr_argument = (xdrproc_t)xdr_wrapstring;
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xdr_result = (xdrproc_t)xdr_netbuf;
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local = rpcbproc_uaddr2taddr_com;
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break;
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case RPCBPROC_TADDR2UADDR:
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#ifdef RPCBIND_DEBUG
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if (debugging)
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fprintf(stderr, "RPCBPROC_TADDR2UADDR\n");
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#endif
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xdr_argument = (xdrproc_t)xdr_netbuf;
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xdr_result = (xdrproc_t)xdr_wrapstring;
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local = rpcbproc_taddr2uaddr_com;
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break;
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default:
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svcerr_noproc(transp);
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return;
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}
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(void) memset((char *)&argument, 0, sizeof (argument));
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if (!svc_getargs(transp, (xdrproc_t) xdr_argument,
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(char *) &argument)) {
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svcerr_decode(transp);
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if (debugging)
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(void) fprintf(stderr, "rpcbind: could not decode\n");
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return;
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}
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if (!check_access(transp, rqstp->rq_proc, &argument, RPCBVERS)) {
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svcerr_weakauth(transp);
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goto done;
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}
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result = (*local)(&argument, rqstp, transp, RPCBVERS);
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if (result != NULL && !svc_sendreply(transp, (xdrproc_t)xdr_result,
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result)) {
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svcerr_systemerr(transp);
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if (debugging) {
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(void) fprintf(stderr, "rpcbind: svc_sendreply\n");
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if (doabort) {
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rpcbind_abort();
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}
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}
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}
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done:
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if (!svc_freeargs(transp, (xdrproc_t)xdr_argument, (char *)
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&argument)) {
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if (debugging) {
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(void) fprintf(stderr, "unable to free arguments\n");
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if (doabort) {
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rpcbind_abort();
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}
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}
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}
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}
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/*
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* Lookup the mapping for a program, version and return its
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* address. Assuming that the caller wants the address of the
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* server running on the transport on which the request came.
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*
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* We also try to resolve the universal address in terms of
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* address of the caller.
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*/
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/* ARGSUSED */
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static void *
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rpcbproc_getaddr_3_local(void *arg, struct svc_req *rqstp __unused,
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SVCXPRT *transp __unused, rpcvers_t versnum __unused)
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{
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RPCB *regp = (RPCB *)arg;
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#ifdef RPCBIND_DEBUG
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if (debugging) {
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char *uaddr;
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uaddr = taddr2uaddr(rpcbind_get_conf(transp->xp_netid),
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svc_getrpccaller(transp));
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fprintf(stderr, "RPCB_GETADDR req for (%lu, %lu, %s) from %s: ",
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(unsigned long)regp->r_prog, (unsigned long)regp->r_vers,
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regp->r_netid, uaddr);
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free(uaddr);
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}
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#endif
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return (rpcbproc_getaddr_com(regp, rqstp, transp, RPCBVERS,
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RPCB_ALLVERS));
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}
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/* ARGSUSED */
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static void *
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rpcbproc_dump_3_local(void *arg __unused, struct svc_req *rqstp __unused,
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SVCXPRT *transp __unused, rpcvers_t versnum __unused)
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{
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return ((void *)&list_rbl);
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}
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