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path: root/src/usr/local/sbin/ppp-linkdown
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#!/bin/sh
#
# ppp-linkdown
#
# part of pfSense (https://www.pfsense.org)
# Copyright (c) 2004-2016 Electric Sheep Fencing, LLC
# 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

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

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'
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