1 /*- 2 * Copyright (c) 1997 Brian Somers <brian (at) 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 * $FreeBSD: src/usr.sbin/ppp/tun.c,v 1.28.40.1 2010/12/21 17:10:29 kensmith Exp $ 27 */ 28 29 #include <sys/param.h> 30 31 #include <sys/socket.h> /* For IFF_ defines */ 32 #ifndef __FreeBSD__ 33 #include <net/if.h> /* For IFF_ defines */ 34 #endif 35 #include <net/route.h> 36 #include <netinet/in.h> 37 #include <net/if_types.h> 38 #include <net/if_tun.h> 39 #include <netinet/in_systm.h> 40 #include <netinet/ip.h> 41 #include <sys/un.h> 42 43 #include <errno.h> 44 #include <string.h> 45 #if defined(__OpenBSD__) || defined(__NetBSD__) 46 #include <sys/ioctl.h> 47 #endif 48 #include <stdio.h> 49 #include <termios.h> 50 #ifdef __NetBSD__ 51 #include <unistd.h> 52 #endif 53 54 #include "layer.h" 55 #include "mbuf.h" 56 #include "log.h" 57 #include "id.h" 58 #include "timer.h" 59 #include "lqr.h" 60 #include "hdlc.h" 61 #include "defs.h" 62 #include "fsm.h" 63 #include "throughput.h" 64 #include "iplist.h" 65 #include "slcompress.h" 66 #include "ncpaddr.h" 67 #include "ipcp.h" 68 #include "filter.h" 69 #include "descriptor.h" 70 #include "lcp.h" 71 #include "ccp.h" 72 #include "link.h" 73 #include "mp.h" 74 #include "iface.h" 75 #ifndef NORADIUS 76 #include "radius.h" 77 #endif 78 #include "ipv6cp.h" 79 #include "ncp.h" 80 #include "bundle.h" 81 #include "tun.h" 82 83 void 84 tun_configure(struct bundle *bundle) 85 { 86 #ifdef __NetBSD__ 87 struct ifreq ifr; 88 int s; 89 90 s = socket(PF_INET, SOCK_DGRAM, 0); 91 92 if (s < 0) { 93 log_Printf(LogERROR, "tun_configure: socket(): %s\n", strerror(errno)); 94 return; 95 } 96 97 sprintf(ifr.ifr_name, "tun%d", bundle->unit); 98 ifr.ifr_mtu = bundle->iface->mtu; 99 if (ioctl(s, SIOCSIFMTU, &ifr) < 0) 100 log_Printf(LogERROR, "tun_configure: ioctl(SIOCSIFMTU): %s\n", 101 strerror(errno)); 102 103 close(s); 104 #else 105 struct tuninfo info; 106 107 memset(&info, '\0', sizeof info); 108 info.type = IFT_PPP; 109 info.mtu = bundle->iface->mtu; 110 111 info.baudrate = bundle->bandwidth; 112 #ifdef __OpenBSD__ 113 info.flags = IFF_UP|IFF_POINTOPOINT|IFF_MULTICAST; 114 #endif 115 if (ID0ioctl(bundle->dev.fd, TUNSIFINFO, &info) < 0) 116 log_Printf(LogERROR, "tun_configure: ioctl(TUNSIFINFO): %s\n", 117 strerror(errno)); 118 #endif 119 } 120
