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 1.9 1998/08/09 16:41:01 brian Exp $ 27 */ 28 29 #include <sys/types.h> 30 #include <sys/socket.h> /* For IFF_ defines */ 31 #include <net/if.h> /* For IFF_ defines */ 32 #include <netinet/in.h> 33 #include <net/if_types.h> 34 #include <net/if_tun.h> 35 #include <netinet/in_systm.h> 36 #include <netinet/ip.h> 37 #include <sys/un.h> 38 39 #include <string.h> 40 #include <sys/ioctl.h> 41 #include <sys/errno.h> 42 43 #include "mbuf.h" 44 #include "log.h" 45 #include "timer.h" 46 #include "lqr.h" 47 #include "hdlc.h" 48 #include "defs.h" 49 #include "fsm.h" 50 #include "throughput.h" 51 #include "iplist.h" 52 #include "slcompress.h" 53 #include "ipcp.h" 54 #include "filter.h" 55 #include "descriptor.h" 56 #include "lcp.h" 57 #include "ccp.h" 58 #include "link.h" 59 #include "mp.h" 60 #include "bundle.h" 61 #include "tun.h" 62 63 void 64 tun_configure(struct bundle *bundle, int mtu) 65 { 66 struct tuninfo info; 67 68 memset(&info, '\0', sizeof info); 69 info.type = IFT_PPP; 70 info.mtu = mtu; 71 info.baudrate = bundle->ifSpeed; 72 #ifdef __OpenBSD__ 73 info.flags = IFF_UP|IFF_POINTOPOINT; 74 #endif 75 if (ioctl(bundle->dev.fd, TUNSIFINFO, &info) < 0) 76 log_Printf(LogERROR, "tun_configure: ioctl(TUNSIFINFO): %s\n", 77 strerror(errno)); 78 } 79