#include <machine/rtems-bsd-user-space.h>
/* $NetBSD: rpc_soc.c,v 1.6 2000/07/06 03:10:35 christos 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.
*/
/* #ident "@(#)rpc_soc.c 1.17 94/04/24 SMI" */
/*
* Copyright (c) 1986-1991 by Sun Microsystems Inc.
* In addition, portions of such source code were derived from Berkeley
* 4.3 BSD under license from the Regents of the University of
* California.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)rpc_soc.c 1.41 89/05/02 Copyr 1988 Sun Micro";
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifdef PORTMAP
/*
* rpc_soc.c
*
* The backward compatibility routines for the earlier implementation
* of RPC, where the only transports supported were tcp/ip and udp/ip.
* Based on berkeley socket abstraction, now implemented on the top
* of TLI/Streams
*/
#include "namespace.h"
#include "reentrant.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <rpc/rpc.h>
#include <rpc/pmap_clnt.h>
#include <rpc/pmap_prot.h>
#include <rpc/nettype.h>
#include <syslog.h>
#include <netinet/in.h>
#include <netdb.h>
#include <errno.h>
#include <syslog.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "un-namespace.h"
#include "rpc_com.h"
#include "mt_misc.h"
static CLIENT *clnt_com_create(struct sockaddr_in *, rpcprog_t, rpcvers_t,
int *, u_int, u_int, char *);
static SVCXPRT *svc_com_create(int, u_int, u_int, char *);
static bool_t rpc_wrap_bcast(char *, struct netbuf *, struct netconfig *);
/* XXX */
#define IN4_LOCALHOST_STRING "127.0.0.1"
#define IN6_LOCALHOST_STRING "::1"
/*
* A common clnt create routine
*/
static CLIENT *
clnt_com_create(struct sockaddr_in *raddr, rpcprog_t prog, rpcvers_t vers, int *sockp,
u_int sendsz, u_int recvsz, char *tp)
{
CLIENT *cl;
int madefd = FALSE;
int fd = *sockp;
struct netconfig *nconf;
struct netbuf bindaddr;
mutex_lock(&rpcsoc_lock);
if ((nconf = __rpc_getconfip(tp)) == NULL) {
rpc_createerr.cf_stat = RPC_UNKNOWNPROTO;
mutex_unlock(&rpcsoc_lock);
return (NULL);
}
if (fd == RPC_ANYSOCK) {
fd = __rpc_nconf2fd(nconf);
if (fd == -1)
goto syserror;
madefd = TRUE;
}
if (raddr->sin_port == 0) {
u_int proto;
u_short sport;
mutex_unlock(&rpcsoc_lock); /* pmap_getport is recursive */
proto = strcmp(tp, "udp") == 0 ? IPPROTO_UDP : IPPROTO_TCP;
sport = pmap_getport(raddr, (u_long)prog, (u_long)vers,
proto);
if (sport == 0) {
goto err;
}
raddr->sin_port = htons(sport);
mutex_lock(&rpcsoc_lock); /* pmap_getport is recursive */
}
/* Transform sockaddr_in to netbuf */
bindaddr.maxlen = bindaddr.len = sizeof (struct sockaddr_in);
bindaddr.buf = raddr;
bindresvport(fd, NULL);
cl = clnt_tli_create(fd, nconf, &bindaddr, prog, vers,
sendsz, recvsz);
if (cl) {
if (madefd == TRUE) {
/*
* The fd should be closed while destroying the handle.
*/
(void) CLNT_CONTROL(cl, CLSET_FD_CLOSE, NULL);
*sockp = fd;
}
(void) freenetconfigent(nconf);
mutex_unlock(&rpcsoc_lock);
return (cl);
}
goto err;
syserror:
rpc_createerr.cf_stat = RPC_SYSTEMERROR;
rpc_createerr.cf_error.re_errno = errno;
err: if (madefd == TRUE)
(void)_close(fd);
(void) freenetconfigent(nconf);
mutex_unlock(&rpcsoc_lock);
return (NULL);
}
CLIENT *
clntudp_bufcreate(struct sockaddr_in *raddr, u_long prog, u_long vers,
struct timeval wait, int *sockp, u_int sendsz, u_int recvsz)
{
CLIENT *cl;
cl = clnt_com_create(raddr, (rpcprog_t)prog, (rpcvers_t)vers, sockp,
sendsz, recvsz, "udp");
if (cl == NULL) {
return (NULL);
}
(void) CLNT_CONTROL(cl, CLSET_RETRY_TIMEOUT, &wait);
return (cl);
}
CLIENT *
clntudp_create(struct sockaddr_in *raddr, u_long program, u_long version,
struct timeval wait, int *sockp)
{
return clntudp_bufcreate(raddr, program, version, wait, sockp,
UDPMSGSIZE, UDPMSGSIZE);
}
CLIENT *
clnttcp_create(struct sockaddr_in *raddr, u_long prog, u_long vers, int *sockp,
u_int sendsz, u_int recvsz)
{
return clnt_com_create(raddr, (rpcprog_t)prog, (rpcvers_t)vers, sockp,
sendsz, recvsz, "tcp");
}
CLIENT *
clntraw_create(u_long prog, u_long vers)
{
return clnt_raw_create((rpcprog_t)prog, (rpcvers_t)vers);
}
/*
* A common server create routine
*/
static SVCXPRT *
svc_com_create(int fd, u_int sendsize, u_int recvsize, char *netid)
{
struct netconfig *nconf;
SVCXPRT *svc;
int madefd = FALSE;
int port;
struct sockaddr_in sin;
if ((nconf = __rpc_getconfip(netid)) == NULL) {
(void) syslog(LOG_ERR, "Could not get %s transport", netid);
return (NULL);
}
if (fd == RPC_ANYSOCK) {
fd = __rpc_nconf2fd(nconf);
if (fd == -1) {
(void) freenetconfigent(nconf);
(void) syslog(LOG_ERR,
"svc%s_create: could not open connection", netid);
return (NULL);
}
madefd = TRUE;
}
memset(&sin, 0, sizeof sin);
sin.sin_family = AF_INET;
bindresvport(fd, &sin);
_listen(fd, SOMAXCONN);
svc = svc_tli_create(fd, nconf, NULL, sendsize, recvsize);
(void) freenetconfigent(nconf);
if (svc == NULL) {
if (madefd)
(void)_close(fd);
return (NULL);
}
port = (((struct sockaddr_in *)svc->xp_ltaddr.buf)->sin_port);
svc->xp_port = ntohs(port);
return (svc);
}
SVCXPRT *
svctcp_create(int fd, u_int sendsize, u_int recvsize)
{
return svc_com_create(fd, sendsize, recvsize, "tcp");
}
SVCXPRT *
svcudp_bufcreate(int fd, u_int sendsz, u_int recvsz)
{
return svc_com_create(fd, sendsz, recvsz, "udp");
}
SVCXPRT *
svcfd_create(int fd, u_int sendsize, u_int recvsize)
{
return svc_fd_create(fd, sendsize, recvsize);
}
SVCXPRT *
svcudp_create(int fd)
{
return svc_com_create(fd, UDPMSGSIZE, UDPMSGSIZE, "udp");
}
SVCXPRT *
svcraw_create(void)
{
return svc_raw_create();
}
int
get_myaddress(struct sockaddr_in *addr)
{
memset((void *) addr, 0, sizeof(*addr));
addr->sin_family = AF_INET;
addr->sin_port = htons(PMAPPORT);
addr->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
return (0);
}
/*
* For connectionless "udp" transport. Obsoleted by rpc_call().
*/
int
callrpc(const char *host, int prognum, int versnum, int procnum,
xdrproc_t inproc, void *in, xdrproc_t outproc, void *out)
{
return (int)rpc_call(host, (rpcprog_t)prognum, (rpcvers_t)versnum,
(rpcproc_t)procnum, inproc, in, outproc, out, "udp");
}
/*
* For connectionless kind of transport. Obsoleted by rpc_reg()
*/
int
registerrpc(int prognum, int versnum, int procnum,
char *(*progname)(char [UDPMSGSIZE]),
xdrproc_t inproc, xdrproc_t outproc)
{
return rpc_reg((rpcprog_t)prognum, (rpcvers_t)versnum,
(rpcproc_t)procnum, progname, inproc, outproc, "udp");
}
/*
* All the following clnt_broadcast stuff is convulated; it supports
* the earlier calling style of the callback function
*/
static thread_key_t clnt_broadcast_key;
static resultproc_t clnt_broadcast_result_main;
static once_t clnt_broadcast_once = ONCE_INITIALIZER;
static void
clnt_broadcast_key_init(void)
{
thr_keycreate(&clnt_broadcast_key, free);
}
/*
* Need to translate the netbuf address into sockaddr_in address.
* Dont care about netid here.
*/
/* ARGSUSED */
static bool_t
rpc_wrap_bcast(char *resultp, struct netbuf *addr, struct netconfig *nconf)
/*
* char *resultp; // results of the call
* struct netbuf *addr; // address of the guy who responded
* struct netconfig *nconf; // Netconf of the transport
*/
{
resultproc_t clnt_broadcast_result;
if (strcmp(nconf->nc_netid, "udp"))
return (FALSE);
if (thr_main())
clnt_broadcast_result = clnt_broadcast_result_main;
else
clnt_broadcast_result = (resultproc_t)thr_getspecific(clnt_broadcast_key);
return (*clnt_broadcast_result)(resultp,
(struct sockaddr_in *)addr->buf);
}
/*
* Broadcasts on UDP transport. Obsoleted by rpc_broadcast().
*/
enum clnt_stat
clnt_broadcast(u_long prog, u_long vers, u_long proc, xdrproc_t xargs,
void *argsp, xdrproc_t xresults, void *resultsp, resultproc_t eachresult)
/*
* u_long prog; // program number
* u_long vers; // version number
* u_long proc; // procedure number
* xdrproc_t xargs; // xdr routine for args
* void *argsp; // pointer to args
* xdrproc_t xresults; // xdr routine for results
* void *resultsp; // pointer to results
* resultproc_t eachresult; // call with each result obtained
*/
{
if (thr_main())
clnt_broadcast_result_main = eachresult;
else {
thr_once(&clnt_broadcast_once, clnt_broadcast_key_init);
thr_setspecific(clnt_broadcast_key, (void *) eachresult);
}
return rpc_broadcast((rpcprog_t)prog, (rpcvers_t)vers,
(rpcproc_t)proc, xargs, argsp, xresults, resultsp,
(resultproc_t) rpc_wrap_bcast, "udp");
}
/*
* Create the client des authentication object. Obsoleted by
* authdes_seccreate().
*/
AUTH *
authdes_create(char *servername, u_int window, struct sockaddr *syncaddr,
des_block *ckey)
/*
* char *servername; // network name of server
* u_int window; // time to live
* struct sockaddr *syncaddr; // optional hostaddr to sync with
* des_block *ckey; // optional conversation key to use
*/
{
AUTH *dummy;
AUTH *nauth;
char hostname[NI_MAXHOST];
if (syncaddr) {
/*
* Change addr to hostname, because that is the way
* new interface takes it.
*/
if (getnameinfo(syncaddr, syncaddr->sa_len, hostname,
sizeof hostname, NULL, 0, 0) != 0)
goto fallback;
nauth = authdes_seccreate(servername, window, hostname, ckey);
return (nauth);
}
fallback:
dummy = authdes_seccreate(servername, window, NULL, ckey);
return (dummy);
}
/*
* Create a client handle for a unix connection. Obsoleted by clnt_vc_create()
*/
CLIENT *
clntunix_create(struct sockaddr_un *raddr, u_long prog, u_long vers, int *sockp,
u_int sendsz, u_int recvsz)
{
struct netbuf *svcaddr;
CLIENT *cl;
int len;
cl = NULL;
svcaddr = NULL;
if ((raddr->sun_len == 0) ||
((svcaddr = malloc(sizeof(struct netbuf))) == NULL ) ||
((svcaddr->buf = malloc(sizeof(struct sockaddr_un))) == NULL)) {
free(svcaddr);
rpc_createerr.cf_stat = RPC_SYSTEMERROR;
rpc_createerr.cf_error.re_errno = errno;
return(cl);
}
if (*sockp < 0) {
*sockp = _socket(AF_LOCAL, SOCK_STREAM, 0);
len = raddr->sun_len = SUN_LEN(raddr);
if ((*sockp < 0) || (_connect(*sockp,
(struct sockaddr *)raddr, len) < 0)) {
rpc_createerr.cf_stat = RPC_SYSTEMERROR;
rpc_createerr.cf_error.re_errno = errno;
if (*sockp != -1)
(void)_close(*sockp);
goto done;
}
}
svcaddr->buf = raddr;
svcaddr->len = raddr->sun_len;
svcaddr->maxlen = sizeof (struct sockaddr_un);
cl = clnt_vc_create(*sockp, svcaddr, prog,
vers, sendsz, recvsz);
done:
free(svcaddr->buf);
free(svcaddr);
return(cl);
}
/*
* Creates, registers, and returns a (rpc) unix based transporter.
* Obsoleted by svc_vc_create().
*/
SVCXPRT *
svcunix_create(int sock, u_int sendsize, u_int recvsize, char *path)
{
struct netconfig *nconf;
void *localhandle;
struct sockaddr_un sun;
struct sockaddr *sa;
struct t_bind taddr;
SVCXPRT *xprt;
int addrlen;
xprt = (SVCXPRT *)NULL;
localhandle = setnetconfig();
while ((nconf = getnetconfig(localhandle)) != NULL) {
if (nconf->nc_protofmly != NULL &&
strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0)
break;
}
if (nconf == NULL)
goto done;
if ((sock = __rpc_nconf2fd(nconf)) < 0)
goto done;
memset(&sun, 0, sizeof sun);
sun.sun_family = AF_LOCAL;
if (strlcpy(sun.sun_path, path, sizeof(sun.sun_path)) >=
sizeof(sun.sun_path))
goto done;
sun.sun_len = SUN_LEN(&sun);
addrlen = sizeof (struct sockaddr_un);
sa = (struct sockaddr *)&sun;
if (_bind(sock, sa, addrlen) < 0)
goto done;
taddr.addr.len = taddr.addr.maxlen = addrlen;
taddr.addr.buf = malloc(addrlen);
if (taddr.addr.buf == NULL)
goto done;
memcpy(taddr.addr.buf, sa, addrlen);
if (nconf->nc_semantics != NC_TPI_CLTS) {
if (_listen(sock, SOMAXCONN) < 0) {
free(taddr.addr.buf);
goto done;
}
}
xprt = (SVCXPRT *)svc_tli_create(sock, nconf, &taddr, sendsize, recvsize);
done:
endnetconfig(localhandle);
return(xprt);
}
/*
* Like svunix_create(), except the routine takes any *open* UNIX file
* descriptor as its first input. Obsoleted by svc_fd_create();
*/
SVCXPRT *
svcunixfd_create(int fd, u_int sendsize, u_int recvsize)
{
return (svc_fd_create(fd, sendsize, recvsize));
}
#endif /* PORTMAP */
