freebsd-skq/usr.sbin/ppp/tun.c

79 lines
2.5 KiB
C

/*-
* Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $Id: tun.c,v 1.6.4.7 1998/03/16 22:52:52 brian Exp $
*/
#include <sys/param.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <net/if.h>
#include <sys/select.h>
#include <net/if_tun.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include "command.h"
#include "mbuf.h"
#include "log.h"
#include "timer.h"
#include "lqr.h"
#include "hdlc.h"
#include "defs.h"
#include "loadalias.h"
#include "vars.h"
#include "fsm.h"
#include "throughput.h"
#include "iplist.h"
#include "slcompress.h"
#include "ipcp.h"
#include "filter.h"
#include "bundle.h"
#include "tun.h"
void
tun_configure(struct bundle *bundle, int mtu, int speed)
{
struct tuninfo info;
info.type = 23;
info.mtu = mtu;
if (VarPrefMTU != 0 && VarPrefMTU < mtu)
info.mtu = VarPrefMTU;
info.baudrate = speed;
#ifdef __OpenBSD__
info.flags = IFF_UP|IFF_POINTOPOINT;
#endif
if (ioctl(bundle->tun_fd, TUNSIFINFO, &info) < 0)
LogPrintf(LogERROR, "tun_configure: ioctl(TUNSIFINFO): %s\n",
strerror(errno));
}