text: /*-
   * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   *
   * 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.
   *
   * $FreeBSD$
   */
  
  #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
  }
  