/*- * Copyright (c) 1997 Brian Somers * 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. * * $OpenBSD: tun.c,v 1.17 2003/04/04 20:25:06 deraadt Exp $ */ #include #include /* For IFF_ defines */ #ifndef __FreeBSD__ #include /* For IFF_ defines */ #endif #include #include #include #include #include #include #include #include #include #if defined(__OpenBSD__) || defined(__NetBSD__) #include #endif #include #include #ifdef __NetBSD__ #include #endif #include "layer.h" #include "mbuf.h" #include "log.h" #include "id.h" #include "timer.h" #include "lqr.h" #include "hdlc.h" #include "defs.h" #include "fsm.h" #include "throughput.h" #include "iplist.h" #include "slcompress.h" #include "ncpaddr.h" #include "ipcp.h" #include "filter.h" #include "descriptor.h" #include "lcp.h" #include "ccp.h" #include "link.h" #include "mp.h" #include "iface.h" #ifndef NORADIUS #include "radius.h" #endif #include "ipv6cp.h" #include "ncp.h" #include "bundle.h" #include "tun.h" void tun_configure(struct bundle *bundle) { #ifdef __NetBSD__ struct ifreq ifr; int s; s = socket(PF_INET, SOCK_DGRAM, 0); if (s < 0) { log_Printf(LogERROR, "tun_configure: socket(): %s\n", strerror(errno)); return; } snprintf(ifr.ifr_name, sizeof ifr.ifr_name, "tun%d", bundle->unit); ifr.ifr_mtu = bundle->iface->mtu; if (ioctl(s, SIOCSIFMTU, &ifr) < 0) log_Printf(LogERROR, "tun_configure: ioctl(SIOCSIFMTU): %s\n", strerror(errno)); close(s); #else struct tuninfo info; memset(&info, '\0', sizeof info); info.type = IFT_PPP; info.mtu = bundle->iface->mtu; info.baudrate = bundle->bandwidth; #ifdef __OpenBSD__ info.flags = IFF_UP|IFF_POINTOPOINT|IFF_MULTICAST; #endif if (ID0ioctl(bundle->dev.fd, TUNSIFINFO, &info) < 0) log_Printf(LogERROR, "tun_configure: ioctl(TUNSIFINFO): %s\n", strerror(errno)); #endif }