#!/bin/sh /etc/rc.common
# Copyright (C) 2016 OpenWrt.org

START=50
USE_PROCD=1

validate_section_addrwatch() {
	uci_validate_section addrwatch addrwatch "${1}" \
		'disabled:bool:0' \
		'interface:list(string):lan' \
		'syslog:bool:1' \
		'output:string' \
		'quiet:bool:0' \
		'verbose:bool:0' \
		'ipv4only:bool:0' \
		'ipv6only:bool:0' \
		'blacklist:list(or(ip4addr,ip6addr))' \
		'hashsize:range(1,65536):1024'\
		'ratelimit:integer:3600'
	return $?
}

start_instance() {
	local cfg="$1"
	local disabled interface syslog output quiet verbose ipv4only ipv6only
	local blacklist hashsize ratelimit
	local netdevs=""

	validate_section_addrwatch "${cfg}" || {
		echo "validation of config $cfg failed"
		return 1
	}
	[ $disabled -ne 0 ] && return 1

	for iface in $interface; do
		local netdev
		network_get_physdev netdev "${iface}"
		append netdevs "${netdev}"
	done

	procd_open_instance
	procd_set_param command /usr/sbin/addrwatch
	[ "${syslog}" -eq 1 ] && procd_append_param command --syslog
	[ -n "${output}" ] && procd_append_param command --output "$output"
	[ "$quiet" -eq 1 ] && procd_append_param command --quiet
	[ "$verbose" -eq 1 ] && procd_append_param command --verbose
	[ "$ipv4only" -eq 1 ] && procd_append_param command --ipv4only
	[ "$ipv6only" -eq 1 ] && procd_append_param command --ipv6only
	[ -n "$hashsize" ] && procd_append_param command --hashsize "$hashsize"
	[ -n "$ratelimit" ] && procd_append_param command --ratelimit "$ratelimit"
	for blitem in $blacklist; do
		procd_append_param command "--blacklist=${blitem}"
	done
	procd_append_param command $netdevs
	procd_set_param netdev $netdevs
	procd_set_param respawn
	procd_open_trigger
	for iface in $interface; do
		procd_add_interface_trigger "interface.*" ${iface} /etc/init.d/addrwatch reload
	done
	procd_close_trigger
	procd_close_instance
}

start_service() {
	. /lib/functions/network.sh
	config_load 'addrwatch'
	config_foreach start_instance 'addrwatch'
}

service_triggers() {
	procd_add_reload_trigger 'addrwatch'
}