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/* $NetBSD: svc_generic.c,v 1.3 2000/07/06 03:10:35 christos 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.
*/
/*
* svc_generic.c, Server side for RPC.
*
*/
#include "opt_inet6.h"
#include <sys/param.h>
#include <sys/lock.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/protosw.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/systm.h>
#include <sys/sx.h>
#include <sys/ucred.h>
#include <net/vnet.h>
#include <rpc/rpc.h>
#include <rpc/rpcb_clnt.h>
#include <rpc/nettype.h>
#include <rpc/rpc_com.h>
extern int __svc_vc_setflag(SVCXPRT *, int);
/*
* The high level interface to svc_tli_create().
* It tries to create a server for "nconf" and registers the service
* with the rpcbind. It calls svc_tli_create();
*/
SVCXPRT *
svc_tp_create(
SVCPOOL *pool,
void (*dispatch)(struct svc_req *, SVCXPRT *),
rpcprog_t prognum, /* Program number */
rpcvers_t versnum, /* Version number */
const char *uaddr, /* Address (or null for default) */
const struct netconfig *nconf) /* Netconfig structure for the network */
{
struct netconfig nconfcopy;
struct netbuf *taddr;
struct t_bind bind;
SVCXPRT *xprt;
if (nconf == NULL) {
printf(
"svc_tp_create: invalid netconfig structure for prog %u vers %u\n",
(unsigned)prognum, (unsigned)versnum);
return (NULL);
}
if (uaddr) {
taddr = uaddr2taddr(nconf, uaddr);
bind.addr = *taddr;
free(taddr, M_RPC);
bind.qlen = -1;
xprt = svc_tli_create(pool, nconf, &bind, 0, 0);
free(bind.addr.buf, M_RPC);
} else {
xprt = svc_tli_create(pool, nconf, NULL, 0, 0);
}
if (xprt == NULL) {
return (NULL);
}
/*LINTED const castaway*/
nconfcopy = *nconf;
(void) rpcb_unset(prognum, versnum, &nconfcopy);
if (svc_reg(xprt, prognum, versnum, dispatch, nconf) == FALSE) {
printf(
"svc_tp_create: Could not register prog %u vers %u on %s\n",
(unsigned)prognum, (unsigned)versnum,
nconf->nc_netid);
xprt_unregister(xprt);
SVC_RELEASE(xprt);
return (NULL);
}
return (xprt);
}
/*
* If so is NULL, then it opens a socket for the given transport
* provider (nconf cannot be NULL then). If the t_state is T_UNBND and
* bindaddr is NON-NULL, it performs a t_bind using the bindaddr. For
* NULL bindadr and Connection oriented transports, the value of qlen
* is set to 8.
*
* If sendsz or recvsz are zero, their default values are chosen.
*/
SVCXPRT *
svc_tli_create(
SVCPOOL *pool,
const struct netconfig *nconf, /* Netconfig struct for nettoken */
const struct t_bind *bindaddr, /* Local bind address */
size_t sendsz, /* Max sendsize */
size_t recvsz) /* Max recvsize */
{
struct socket *so;
SVCXPRT *xprt = NULL; /* service handle */
struct __rpc_sockinfo si;
struct sockaddr_storage ss;
if (nconf == NULL) {
printf("svc_tli_create: invalid netconfig\n");
return (NULL);
}
so = __rpc_nconf2socket(nconf);
if (!so) {
printf(
"svc_tli_create: could not open connection for %s\n",
nconf->nc_netid);
return (NULL);
}
__rpc_nconf2sockinfo(nconf, &si);
if (bindaddr == NULL) {
if (bindresvport(so, NULL)) {
memset(&ss, 0, sizeof ss);
ss.ss_family = si.si_af;
ss.ss_len = si.si_alen;
if (sobind(so, (struct sockaddr *)&ss,
curthread)) {
printf(
"svc_tli_create: could not bind to anonymous port\n");
goto freedata;
}
}
solisten(so, -1, curthread);
} else {
if (bindresvport(so,
(struct sockaddr *)bindaddr->addr.buf)) {
printf(
"svc_tli_create: could not bind to requested address\n");
goto freedata;
}
solisten(so, (int)bindaddr->qlen, curthread);
}
/*
* call transport specific function.
*/
switch (si.si_socktype) {
case SOCK_STREAM:
#if 0
slen = sizeof ss;
if (_getpeername(fd, (struct sockaddr *)(void *)&ss, &slen)
== 0) {
/* accepted socket */
xprt = svc_fd_create(fd, sendsz, recvsz);
} else
#endif
xprt = svc_vc_create(pool, so, sendsz, recvsz);
if (!nconf || !xprt)
break;
#if 0
/* XXX fvdl */
if (strcmp(nconf->nc_protofmly, "inet") == 0 ||
strcmp(nconf->nc_protofmly, "inet6") == 0)
(void) __svc_vc_setflag(xprt, TRUE);
#endif
break;
case SOCK_DGRAM:
xprt = svc_dg_create(pool, so, sendsz, recvsz);
break;
default:
printf("svc_tli_create: bad service type");
goto freedata;
}
if (xprt == NULL)
/*
* The error messages here are spitted out by the lower layers:
* svc_vc_create(), svc_fd_create() and svc_dg_create().
*/
goto freedata;
/* Fill in type of service */
xprt->xp_type = __rpc_socktype2seman(si.si_socktype);
if (nconf) {
xprt->xp_netid = strdup(nconf->nc_netid, M_RPC);
}
return (xprt);
freedata:
(void)soclose(so);
if (xprt)
xprt_unregister(xprt);
return (NULL);
}
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