#!/bin/bash
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2010  Michael Tremer & Christian Schmidt                      #
#                                                                             #
# 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/>.       #
#                                                                             #
###############################################################################

function aiccu_init() {
	log INFO "Initializing aiccu."
	mkdir -p $(aiccu_config_dir)
}

init_register aiccu_init

function aiccu_config_dir() {
	local device=${1}

	echo "${RUN_DIR}/aiccu/${device}"
}

function aiccu_start() {
	local device=${1}
	shift

	assert isset device

	local config_dir=$(aiccu_config_dir ${device})
	mkdir -p ${config_dir}

	local config_file=${config_dir}/config
	aiccu_configure ${device} $@ > ${config_file}

	aiccu start ${config_file} &>/dev/null
	local ret=$?

	case "${ret}" in
		0)
			log DEBUG "Aiccu was successfully started for '${device}'."
			return ${EXIT_OK}
			;;
		*)
			error_log "Could not start aiccu properly for '${device}'."
			
			error_log "Configuration file dump:"
			local line
			while read line; do
				error_log "  ${line}"
			done < ${config_file}

			return ${EXIT_ERROR}
			;;
	esac
}

function aiccu_stop() {
	local device=${1}

	assert isset device

	aiccu stop $(aiccu_config_dir ${device})/config

	rm -rf $(aiccu_config_dir ${device})
}

function aiccu_configure() {
	local device=${1}

	assert isset device

	local user
	local secret
	local server
	local protocol="tic"
	local tunnel_id

	while [ $# -gt  0 ]; do
		case "${1}" in
			--user=*)
				user=$(cli_get_val ${1})
				;;
			--secret=*)
				secret=$(cli_get_val ${1})
				;;
			--server=*)
				server=$(cli_get_val ${1})
				;;
			--protocol=*)
				protocol=$(cli_get_val ${1})
				;;
			--tunnel-id=*)
				tunnel_id=$(cli_get_val ${1})
				;;
		esac
		shift
	done

	assert isset user
	assert isset secret
	assert isset server
	assert isset protocol
	assert isoneof protocol tic tsp l2tp

cat <<EOF
## AICCU configuration for ${zone}

username ${user}
password ${secret}

server ${server}
protocol ${protocol}

$(isset tunnel_id && echo "tunnel_id ${tunnel_id}")

ipv6_interface ${device}

verbose true
daemonize true
automatic true

pidfile $(aiccu_config_dir ${zone})/pid

#setupscript /tmp/aiccu.sh

EOF

	return ${EXIT_OK}
}