#!/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/>.       #
#                                                                             #
###############################################################################

. /usr/lib/network/header-zone

HOOK_SETTINGS="HOOK MAC MTU"

# Default values
MAC=$(mac_generate)
MTU=1500

function hook_check() {
	assert ismac MAC
	assert isinteger MTU
}

function hook_parse_cmdline() {
	while [ $# -gt 0 ]; do
		case "${1}" in
			--mtu=*)
				MTU=${1#--mtu=}
				;;
			--mac=*)
				MAC=${1#--mac=}
				;;
			*)
				warning "Ignoring unknown option '${1}'"
				;;
		esac
		shift
	done
}

function hook_up() {
	local zone=${1}
	shift

	zone_config_read ${zone}

	# Create the interface.
	log INFO "Creating virtual switch '${zone}'."
	switch_create ${zone}

	[ -n "${MAC}" ] && device_set_address ${zone} ${MAC}
	[ -n "${MTU}" ] && device_set_mtu ${zone} ${MTU} 

	# Bring it up.
	device_set_up ${zone}

	# Bring all ports up
	zone_ports_up ${zone}
	zone_configs_up ${zone}

	exit ${EXIT_OK}
}

function hook_down() {
	local zone=${1}
	shift

	zone_configs_down ${zone}
	zone_ports_down ${zone}

	# Bring it down.
	device_set_down ${zone}

	# Remove the virtual switch.
	log INFO "Removing virtual switch '${zone}'."
	switch_remove ${zone}

	exit ${EXIT_OK}
}

function hook_status() {
	local zone=${1}
	assert isset zone

	# Print the default header.
	cli_device_headline ${zone}

	# Exit if zone is down
	if ! zone_is_up ${zone}; then
		echo # Empty line
		exit ${EXIT_ERROR}
	fi

	cli_headline 2 "Spanning Tree Protocol information"
	if switch_stp_is_enabled ${zone}; then
	#	local proto=$(stp_bridge_get_protocol ${zone})

	#	cli_print_fmt1 2 "Version"	"$(stp_get_name ${proto})"
	#	cli_print_fmt1 2 "ID"		"$(stp_bridge_get_id ${zone})"
	#	cli_print_fmt1 2 "Priority"	"$(switch_stp_get_priority ${zone})"

	#	if stp_bridge_is_root ${zone}; then
	#		cli_print 2 "This bridge is root."
	#	else
	#		cli_print_fmt1 2 "Designated root" \
	#			"$(stp_bridge_get_designated_root ${zone})"
	#		cli_print_fmt1 2 "Root path cost" \
	#			"$(stp_bridge_get_root_path_cost ${zone})"
	#	fi
	#	cli_space

	#	# Topology information
	#	cli_print_fmt1 2 "Topology changing" \
	#		"$(stp_bridge_get_topology_change_detected ${zone})"
	#	cli_print_fmt1 2 "Topology change time" \
	#		"$(beautify_time $(stp_bridge_get_topology_change_timer ${zone}))"
	#	cli_print_fmt1 2 "Topology change count" \
	#		"$(stp_bridge_get_topology_change_count ${zone})"
	#	cli_space
		:
	else
		cli_print 2 "Disabled"
		cli_space
	fi

	#cli_headline 2 "Ports"
	#zone_ports_status ${zone}
	#cli_space

	#cli_headline 2 "Configurations"
	#zone_configs_cmd status ${zone}
	#cli_space

	exit ${EXIT_OK}
}