diff options
Diffstat (limited to 'src/tun.c')
-rw-r--r-- | src/tun.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/tun.c b/src/tun.c new file mode 100644 index 0000000..5022156 --- /dev/null +++ b/src/tun.c @@ -0,0 +1,119 @@ +/*- + * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org> + * 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. + * + * $FreeBSD: src/usr.sbin/ppp/tun.c,v 1.28.40.1 2010/12/21 17:10:29 kensmith Exp $ + */ + +#include <sys/param.h> + +#include <sys/socket.h> /* For IFF_ defines */ +#ifndef __FreeBSD__ +#include <net/if.h> /* For IFF_ defines */ +#endif +#include <net/route.h> +#include <netinet/in.h> +#include <net/if_types.h> +#include <net/if_tun.h> +#include <netinet/in_systm.h> +#include <netinet/ip.h> +#include <sys/un.h> + +#include <errno.h> +#include <string.h> +#if defined(__OpenBSD__) || defined(__NetBSD__) +#include <sys/ioctl.h> +#endif +#include <stdio.h> +#include <termios.h> +#ifdef __NetBSD__ +#include <unistd.h> +#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; + } + + sprintf(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 +} |