#!/bin/sh
# Copyright (C) 2011 OpenWrt.org

. /etc/functions.sh

include /lib/network

get_ifname() {
	local interface="$1"
	local cfgt

	scan_interfaces
	config_get cfgt "$interface" TYPE
	[ "$cfgt" == "interface" ] && config_get "$interface" ifname
}

config_cb() {
	config_get TYPE "$CONFIG_SECTION" TYPE
	[ "interface" == "$TYPE" ] && {
		config_get device "$CONFIG_SECTION" ifname
		[ -z "$device" ] && device="$(get_ifname ${CONFIG_SECTION})"
		config_set "$CONFIG_SECTION" device "$device"
	}
}

config_load qos

print_comments() {
	echo ''
	echo '# Interface: '"$1"
	echo '# Direction: '"$2"
	echo '# Stats:     '"$3"
	echo ''
}	

interface_stats() {
	local interface="$1"
	local device

	config_get device "$interface" device
	config_get_bool enabled "$interface" enabled 1
	[ -z "$device" -o 1 -ne "$enabled" ] && {
		return 1
	}
	config_get_bool halfduplex "$interface" halfduplex

	[ 1 -ne "$halfduplex" ] && {
		unset halfduplex
		print_comments "$interface" "Egress" "Start"
		tc -s class show dev "$device"
		print_comments "$interface" "Egress" "End"
	}

	print_comments "$interface" "Ingress${halfduplex:+/Egress}" "Start"
	tc -s class show dev "$(iptables -v -L PREROUTING -t mangle | awk '/IMQ: todev .*$/ && $6 ~ /'$device'/ {print "imq"$12}')"
	print_comments "$interface" "Ingress${halfduplex:+/Egress}" "End"
}

[ -z "$1" ] && config_foreach interface_stats interface || interface_stats "$1"