1706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh/*- 2706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org> 3706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * All rights reserved. 4706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 5706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * Redistribution and use in source and binary forms, with or without 6706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * modification, are permitted provided that the following conditions 7706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * are met: 8706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 1. Redistributions of source code must retain the above copyright 9706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * notice, this list of conditions and the following disclaimer. 10706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 2. Redistributions in binary form must reproduce the above copyright 11706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * notice, this list of conditions and the following disclaimer in the 12706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * documentation and/or other materials provided with the distribution. 13706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 14706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * SUCH DAMAGE. 25706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 26706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * $FreeBSD: src/usr.sbin/ppp/tun.c,v 1.28.40.1 2010/12/21 17:10:29 kensmith Exp $ 27706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh */ 28706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 29706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <sys/param.h> 30706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 31706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <sys/socket.h> /* For IFF_ defines */ 32706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifndef __FreeBSD__ 33706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <net/if.h> /* For IFF_ defines */ 34706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 35706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <net/route.h> 36706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <netinet/in.h> 37706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <net/if_types.h> 38706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <net/if_tun.h> 39706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <netinet/in_systm.h> 40706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <netinet/ip.h> 41706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <sys/un.h> 42706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 43706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <errno.h> 44706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <string.h> 45706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#if defined(__OpenBSD__) || defined(__NetBSD__) 46706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <sys/ioctl.h> 47706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 48706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <stdio.h> 49706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <termios.h> 50706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifdef __NetBSD__ 51706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <unistd.h> 52706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 53706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 54706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "layer.h" 55706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "mbuf.h" 56706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "log.h" 57706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "id.h" 58706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "timer.h" 59706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "lqr.h" 60706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "hdlc.h" 61706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "defs.h" 62706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "fsm.h" 63706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "throughput.h" 64706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "iplist.h" 65706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "slcompress.h" 66706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "ncpaddr.h" 67706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "ipcp.h" 68706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "filter.h" 69706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "descriptor.h" 70706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "lcp.h" 71706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "ccp.h" 72706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "link.h" 73706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "mp.h" 74706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "iface.h" 75706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifndef NORADIUS 76706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "radius.h" 77706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 78706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "ipv6cp.h" 79706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "ncp.h" 80706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "bundle.h" 81706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "tun.h" 82706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 83706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehvoid 84706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehtun_configure(struct bundle *bundle) 85706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 86706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifdef __NetBSD__ 87706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ifreq ifr; 88706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh int s; 89706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 90706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh s = socket(PF_INET, SOCK_DGRAM, 0); 91706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 92706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (s < 0) { 93706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogERROR, "tun_configure: socket(): %s\n", strerror(errno)); 94706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return; 95706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 96706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 97706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh sprintf(ifr.ifr_name, "tun%d", bundle->unit); 98706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ifr.ifr_mtu = bundle->iface->mtu; 99706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ioctl(s, SIOCSIFMTU, &ifr) < 0) 100706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogERROR, "tun_configure: ioctl(SIOCSIFMTU): %s\n", 101706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh strerror(errno)); 102706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 103706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh close(s); 104706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#else 105706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct tuninfo info; 106706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 107706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh memset(&info, '\0', sizeof info); 108706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh info.type = IFT_PPP; 109706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh info.mtu = bundle->iface->mtu; 110706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 111706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh info.baudrate = bundle->bandwidth; 112706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifdef __OpenBSD__ 113706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh info.flags = IFF_UP|IFF_POINTOPOINT|IFF_MULTICAST; 114706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 115706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ID0ioctl(bundle->dev.fd, TUNSIFINFO, &info) < 0) 116706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogERROR, "tun_configure: ioctl(TUNSIFINFO): %s\n", 117706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh strerror(errno)); 118706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 119706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 120