#!/bin/bash
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2012  IPFire Network Development Team                         #
#                                                                             #
# This program is free software: you can redistribute it and/or modify        #
# it under the terms of the GNU General Public License as published by        #
# the Free Software Foundation, either version 3 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# This program is distributed in the hope that it will be useful,             #
# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
# GNU General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License           #
# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################

LOG_FACILITY="miredo-helper"

. /usr/lib/network/functions

# Read network settings
network_settings_read

action="${STATE}"
assert isset action

zone="${IFACE}"
assert zone_exists ${zone}

log DEBUG "Called for zone=${zone} action=${action}."

case "${action}" in
	up)
		# Configure the requested MTU.
		isset MTU && device_set_mtu ${zone} ${MTU}

		# Bring up the device.
		device_set_up ${zone}

		# Apply the link-local address.
		ip_address_add ${zone} "${LLADDRESS}/64"

		# Apply the public IP address.
		ip_address_add ${zone} "${ADDRESS}/32"

		# Write all data to the routing database.
		routing_db_set ${zone} ipv6 type "teredo"
		routing_db_set ${zone} ipv6 local-ip-address "${ADDRESS}/32"
		routing_db_set ${zone} ipv6 active 1

		# Update the routing database.
		routing_update ${zone} ipv6
		routing_default_update
		;;

	down)
		# Remove the routing database and update the tables.
		routing_db_remove ${zone} ipv6
		routing_update ${zone} ipv6
		routing_default_update

		# Set down the device.
		device_set_down ${zone}
		;;

	destroy)
		# Do nothing here.
		;;

	*)
		log ERROR "Unknown action passed: ${action}"
		exit ${EXIT_ERROR}
		;;
esac

exit ${EXIT_OK}