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freebsd/usr.sbin/ppp/tun.c
Brian Somers 972a1bcf5d Initial RADIUS support (using libradius). See the man page for
details.  Compiling with -DNORADIUS (the default for `release')
removes support.

TODO: The functionality in libradius::rad_send_request() needs
      to be supplied as a set of routines so that ppp doesn't
      have to wait indefinitely for the radius server(s).  Instead,
      we need to get a descriptor back, select() on the descriptor,
      and ask libradius to service it when necessary.
      For now, ppp blocks SIGALRM while in rad_send_request(), so
      it misses PAP/CHAP retries & timeouts if they occur.

      Only PAP is functional.  When CHAP is attempted, libradius
      complains that no User-Password has been specified... rfc2138
      says that it *mustn't* be used for CHAP :-(

Sponsored by: Internet Business Solutions Ltd., Switzerland
1999-01-28 01:56:34 +00:00

90 lines
2.8 KiB
C

/*-
* 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.
*
* $Id: tun.c,v 1.10 1998/10/22 02:32:50 brian Exp $
*/
#include <sys/param.h>
#include <sys/socket.h> /* For IFF_ defines */
#include <net/if.h> /* For IFF_ defines */
#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 <string.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include "mbuf.h"
#include "log.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 "ipcp.h"
#include "filter.h"
#include "descriptor.h"
#include "lcp.h"
#include "ccp.h"
#include "link.h"
#include "mp.h"
#ifndef NORADIUS
#include "radius.h"
#endif
#include "bundle.h"
#include "tun.h"
void
tun_configure(struct bundle *bundle, int mtu)
{
struct tuninfo info;
memset(&info, '\0', sizeof info);
info.type = IFT_PPP;
#ifndef NORADIUS
if (bundle->radius.valid && bundle->radius.mtu && bundle->radius.mtu < mtu) {
log_Printf(LogLCP, "Reducing MTU to radius value %lu\n",
bundle->radius.mtu);
info.mtu = bundle->radius.mtu;
} else
#endif
info.mtu = mtu;
info.baudrate = bundle->ifSpeed;
#ifdef __OpenBSD__
info.flags = IFF_UP|IFF_POINTOPOINT;
#endif
if (ioctl(bundle->dev.fd, TUNSIFINFO, &info) < 0)
log_Printf(LogERROR, "tun_configure: ioctl(TUNSIFINFO): %s\n",
strerror(errno));
}