#!/bin/sh /etc/rc.common
# Copyright (C) 2006-2011 OpenWrt.org

START=95

disable_gro() {
	which ethtool &>/dev/null || return 0
	for eth in $(ifconfig | grep "^eth\|^dsa" | awk '{print $1}' | sort | uniq); do
		ethtool -k "$eth" | grep -q "generic-segmentation-offload: on" || {
			ethtool -K "$eth" gro off
			logger -t natfflow "disable gro for <$eth>"
		}
	done
}

start() {
	test -c /dev/natflow_ctl || return 0
	disable_gro
	hwnat_wed=$(uci get natflow.main.hwnat_wed 2>/dev/null || echo 0)
	hwnat=$(uci get natflow.main.hwnat 2>/dev/null || echo 0)
	enabled=$(uci get natflow.main.enabled 2>/dev/null || echo 0)
	debug=$(uci get natflow.main.debug 2>/dev/null || echo 3)
	delay_pkts=$(uci get natflow.main.delay_pkts 2>/dev/null || echo 0)
	skip_qos_to_slow_path=$(uci get natflow.main.skip_qos_to_slow_path 2>/dev/null || echo 0)
	ifname_filter=$(uci get natflow.main.ifname_filter 2>/dev/null)

	echo debug=$debug >/dev/natflow_ctl
	echo disabled=$((!enabled)) >/dev/natflow_ctl
	cat /dev/natflow_ctl | grep -q hwnat= && {
		echo hwnat=$hwnat >/dev/natflow_ctl
		echo hwnat_wed_disabled=$((!hwnat_wed)) >/dev/natflow_ctl
	}
	echo delay_pkts=$delay_pkts >/dev/natflow_ctl
	echo skip_qos_to_slow_path=$skip_qos_to_slow_path >/dev/natflow_ctl
	echo ifname_clear >/dev/natflow_ctl
	for ifn in ${ifname_filter}; do
		echo ifname_add=$ifn >/dev/natflow_ctl
	done
}

stop() {
	test -c /dev/natflow_ctl || return 0
	echo disabled=1 >/dev/natflow_ctl
}

restart() {
	start
}