pfSense

#!/bin/sh

#

# ppp-linkdown

#

# part of pfSense (https://www.pfsense.org)

# Copyright (c) 2004-2016 Rubicon Communications, LLC (Netgate)

# All rights reserved.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

IF="${1}"

PROTOCOL="${2}"

LOCAL_IP="${3}"

if [ -f /tmp/${IF}up ] && [ -f /conf/${IF}.log ]; then

	seconds=$((`date -j +%s` - `/usr/bin/stat -f %m /tmp/${IF}up`))

	/usr/local/sbin/ppp-log-uptime.sh $seconds ${IF} &

fi

if echo "${IF}" | /usr/bin/egrep -qv "ppp[0-9]+"; then

	/etc/rc.kill_states ${IF} ${LOCAL_IP}

fi

if [ "${PROTOCOL}" == "inet" && -s "/tmp/${IF}_defaultgw" ]; then

	GW=`head -n 1 /tmp/${IF}_defaultgw`

	DGW=`/sbin/route -n get -inet default | /usr/bin/awk '/gateway:/ {print $2}'`

	# Only remove the default gateway if it matches the gateway for this interface. See redmine #1837

	if [ "${GW}" = "${DGW}" ]; then

		/sbin/route -q delete default ${GW}

	fi

fi

if [ "${PROTOCOL}" == "inet6" ]; then

	/usr/local/sbin/ppp-ipv6 ${IF} down

fi

# delete the node just in case mpd cannot do that

/usr/sbin/ngctl shutdown ${IF}:

if [ -f "/var/etc/nameserver_${IF}" ]; then

	# Remove old entries

	for nameserver in `cat /var/etc/nameserver_${IF}`; do

		/sbin/route -q delete ${nameserver} >/dev/null 2>&1

	done

	/bin/rm -f /var/etc/nameserver_${IF}

fi

# Do not remove gateway used during filter reload.

/bin/rm -f /tmp/${IF}_router

/bin/rm -f /tmp/${IF}up

/bin/rm -f /tmp/${IF}_ip

/usr/local/sbin/pfSctl -c 'service reload dns'