#! /bin/sh

# After systemd send kill signal to the rtpengine daemon,
# Wait 5 sec, then clean the iptables stuffs:
# 1- delete the forwarding table, 
# 2- delete the iptables rules related to rtpengine
# 3- Unload the kernel module xt_RTPENGINE
	
sleep 5

# Load the Table ID and delete the file that contains this ID
rtpengineTable="/etc/default/rtpengine-table"
. $rtpengineTable
rm -rf $rtpengineTable

# Check if the kernel module is loaded
MODEXIST=`/sbin/lsmod | grep "xt_RTPENGINE"`
if [ -z "$MODEXIST" ]; then
	exit 0
fi

# Delete the Table
if [ "$TABLE" -ge 0 ] && [ "$VIRT" != "yes" ]; then
		set +e
		if [ -e /proc/mediaproxy/control ]; then
			echo "del $TABLE" > /proc/mediaproxy/control 2>/dev/null
		fi
		if [ -e /proc/rtpengine/control ]; then
			echo "del $TABLE" > /proc/rtpengine/control 2>/dev/null
                fi

                iptables -D INPUT -j mediaproxy 2> /dev/null
		iptables -F mediaproxy 2> /dev/null
		iptables -X mediaproxy 2> /dev/null
		ip6tables -D INPUT -j mediaproxy 2> /dev/null
		ip6tables -F mediaproxy 2> /dev/null
		ip6tables -X mediaproxy 2> /dev/null

		iptables -D INPUT -j mediaproxy 2> /dev/null
		iptables -D rtpengine -p udp -j RTPENGINE --id "$TABLE" 2>/dev/null
		ip6tables -D INPUT -j mediaproxy 2> /dev/null
		ip6tables -D rtpengine -p udp -j RTPENGINE --id "$TABLE" 2>/dev/null
		rmmod xt_MEDIAPROXY 2>/dev/null
		rmmod xt_RTPENGINE 2>/dev/null
		set -e
fi
                
exit 0