/* $NetBSD: rpcb_svc.c,v 1.1 2000/06/02 23:15:41 fvdl Exp $ */
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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.
*/
/*
* Copyright (c) 1986 - 1991 by Sun Microsystems, Inc.
*/
/* #ident "@(#)rpcb_svc.c 1.16 93/07/05 SMI" */
/*
* rpcb_svc.c
* The server procedure for the version 3 rpcbind (TLI).
*
* It maintains a separate list of all the registered services with the
* version 3 of rpcbind.
*/
#include <sys/types.h>
#include <rpc/rpc.h>
#include <rpc/rpcb_prot.h>
#include <netconfig.h>
#include <stdio.h>
#ifdef RPCBIND_DEBUG
#include <stdlib.h>
#endif
#include <string.h>
#include "rpcbind.h"
static void *rpcbproc_getaddr_3_local(void *, struct svc_req *, SVCXPRT *,
rpcvers_t);
static void *rpcbproc_dump_3_local(void *, struct svc_req *, SVCXPRT *,
rpcvers_t);
/*
* Called by svc_getreqset. There is a separate server handle for
* every transport that it waits on.
*/
void
rpcb_service_3(struct svc_req *rqstp, SVCXPRT *transp)
{
union {
RPCB rpcbproc_set_3_arg;
RPCB rpcbproc_unset_3_arg;
RPCB rpcbproc_getaddr_3_local_arg;
struct rpcb_rmtcallargs rpcbproc_callit_3_arg;
char *rpcbproc_uaddr2taddr_3_arg;
struct netbuf rpcbproc_taddr2uaddr_3_arg;
} argument;
char *result;
xdrproc_t xdr_argument, xdr_result;
void *(*local)(void *, struct svc_req *, SVCXPRT *, rpcvers_t);
rpcbs_procinfo(RPCBVERS_3_STAT, rqstp->rq_proc);
switch (rqstp->rq_proc) {
case NULLPROC:
/*
* Null proc call
*/
#ifdef RPCBIND_DEBUG
if (debugging)
fprintf(stderr, "RPCBPROC_NULL\n");
#endif
/* This call just logs, no actual checks */
check_access(transp, rqstp->rq_proc, NULL, RPCBVERS);
(void) svc_sendreply(transp, (xdrproc_t)xdr_void, (char *)NULL);
return;
case RPCBPROC_SET:
xdr_argument = (xdrproc_t )xdr_rpcb;
xdr_result = (xdrproc_t )xdr_bool;
local = rpcbproc_set_com;
break;
case RPCBPROC_UNSET:
xdr_argument = (xdrproc_t)xdr_rpcb;
xdr_result = (xdrproc_t)xdr_bool;
local = rpcbproc_unset_com;
break;
case RPCBPROC_GETADDR:
xdr_argument = (xdrproc_t)xdr_rpcb;
xdr_result = (xdrproc_t)xdr_wrapstring;
local = rpcbproc_getaddr_3_local;
break;
case RPCBPROC_DUMP:
#ifdef RPCBIND_DEBUG
if (debugging)
fprintf(stderr, "RPCBPROC_DUMP\n");
#endif
xdr_argument = (xdrproc_t)xdr_void;
xdr_result = (xdrproc_t)xdr_rpcblist_ptr;
local = rpcbproc_dump_3_local;
break;
case RPCBPROC_CALLIT:
rpcbproc_callit_com(rqstp, transp, rqstp->rq_proc, RPCBVERS);
return;
case RPCBPROC_GETTIME:
#ifdef RPCBIND_DEBUG
if (debugging)
fprintf(stderr, "RPCBPROC_GETTIME\n");
#endif
xdr_argument = (xdrproc_t)xdr_void;
xdr_result = (xdrproc_t)xdr_u_long;
local = rpcbproc_gettime_com;
break;
case RPCBPROC_UADDR2TADDR:
#ifdef RPCBIND_DEBUG
if (debugging)
fprintf(stderr, "RPCBPROC_UADDR2TADDR\n");
#endif
xdr_argument = (xdrproc_t)xdr_wrapstring;
xdr_result = (xdrproc_t)xdr_netbuf;
local = rpcbproc_uaddr2taddr_com;
break;
case RPCBPROC_TADDR2UADDR:
#ifdef RPCBIND_DEBUG
if (debugging)
fprintf(stderr, "RPCBPROC_TADDR2UADDR\n");
#endif
xdr_argument = (xdrproc_t)xdr_netbuf;
xdr_result = (xdrproc_t)xdr_wrapstring;
local = rpcbproc_taddr2uaddr_com;
break;
default:
svcerr_noproc(transp);
return;
}
(void) memset((char *)&argument, 0, sizeof (argument));
if (!svc_getargs(transp, (xdrproc_t) xdr_argument,
(char *) &argument)) {
svcerr_decode(transp);
if (debugging)
(void) fprintf(stderr, "rpcbind: could not decode\n");
return;
}
if (!check_access(transp, rqstp->rq_proc, &argument, RPCBVERS)) {
svcerr_weakauth(transp);
goto done;
}
result = (*local)(&argument, rqstp, transp, RPCBVERS);
if (result != NULL && !svc_sendreply(transp, (xdrproc_t)xdr_result,
result)) {
svcerr_systemerr(transp);
if (debugging) {
(void) fprintf(stderr, "rpcbind: svc_sendreply\n");
if (doabort) {
rpcbind_abort();
}
}
}
done:
if (!svc_freeargs(transp, (xdrproc_t)xdr_argument, (char *)
&argument)) {
if (debugging) {
(void) fprintf(stderr, "unable to free arguments\n");
if (doabort) {
rpcbind_abort();
}
}
}
}
/*
* Lookup the mapping for a program, version and return its
* address. Assuming that the caller wants the address of the
* server running on the transport on which the request came.
*
* We also try to resolve the universal address in terms of
* address of the caller.
*/
/* ARGSUSED */
static void *
rpcbproc_getaddr_3_local(void *arg, struct svc_req *rqstp __unused,
SVCXPRT *transp __unused, rpcvers_t versnum __unused)
{
RPCB *regp = (RPCB *)arg;
#ifdef RPCBIND_DEBUG
if (debugging) {
char *uaddr;
uaddr = taddr2uaddr(rpcbind_get_conf(transp->xp_netid),
svc_getrpccaller(transp));
fprintf(stderr, "RPCB_GETADDR req for (%lu, %lu, %s) from %s: ",
(unsigned long)regp->r_prog, (unsigned long)regp->r_vers,
regp->r_netid, uaddr);
free(uaddr);
}
#endif
return (rpcbproc_getaddr_com(regp, rqstp, transp, RPCBVERS,
RPCB_ALLVERS));
}
/* ARGSUSED */
static void *
rpcbproc_dump_3_local(void *arg __unused, struct svc_req *rqstp __unused,
SVCXPRT *transp __unused, rpcvers_t versnum __unused)
{
return ((void *)&list_rbl);
}
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