tun.c revision 36285
1/*- 2 * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $Id: tun.c,v 1.6.4.18 1998/05/06 23:50:22 brian Exp $ 27 */ 28 29#include <sys/types.h> 30#include <sys/socket.h> 31#include <net/if.h> 32#include <netinet/in.h> 33#include <net/if_tun.h> 34#include <netinet/in_systm.h> 35#include <netinet/ip.h> 36#include <sys/un.h> 37 38#include <string.h> 39#include <sys/ioctl.h> 40#include <sys/errno.h> 41 42#include "mbuf.h" 43#include "log.h" 44#include "timer.h" 45#include "lqr.h" 46#include "hdlc.h" 47#include "defs.h" 48#include "fsm.h" 49#include "throughput.h" 50#include "iplist.h" 51#include "slcompress.h" 52#include "ipcp.h" 53#include "filter.h" 54#include "descriptor.h" 55#include "lcp.h" 56#include "ccp.h" 57#include "link.h" 58#include "mp.h" 59#include "bundle.h" 60#include "tun.h" 61 62void 63tun_configure(struct bundle *bundle, int mtu) 64{ 65 struct tuninfo info; 66 67 info.type = 23; 68 info.mtu = mtu; 69 info.baudrate = bundle->ifp.Speed; 70#ifdef __OpenBSD__ 71 info.flags = IFF_UP|IFF_POINTOPOINT; 72#endif 73 if (ioctl(bundle->dev.fd, TUNSIFINFO, &info) < 0) 74 log_Printf(LogERROR, "tun_configure: ioctl(TUNSIFINFO): %s\n", 75 strerror(errno)); 76} 77