#!/bin/sh
#macvlan及PPPoE拨号接口配置批量自动生成脚本
#Copyright (C) 2015 GuoGuo<gch981213@gmail.com>
. /lib/functions.sh

#检测IP列表
chk_ip_list="$(cat /tmp/resolv.conf.auto | grep nameserver | cut -d' ' -f2 | sort -u | tr '\n' ' ') 115.239.210.27 115.239.211.112 220.181.112.244 220.181.111.188 114.114.114.114 114.114.115.115"
fw_str="wan wan6"

#添加MWAN负载均衡相关配置
#$1:接口名称
mwan_cfg_add() {
	#gen mwan3_interface
	uci set mwan3.${1}=interface
	uci set mwan3.${1}.enabled=1
	uci set mwan3.${1}.count=1
	uci set mwan3.${1}.timeout=2
	uci set mwan3.${1}.interval=5
	uci set mwan3.${1}.down=3
	uci set mwan3.${1}.up=2
	for i in $chk_ip_list
	do
		uci add_list mwan3.${1}.track_ip="$i"
	done
	uci set mwan3.${1}.reliability=1
	#gen mwan3_member
	uci set mwan3.${1}_m1_w1=member
	uci set mwan3.${1}_m1_w1.interface=${1}
	uci set mwan3.${1}_m1_w1.metric=1
	uci set mwan3.${1}_m1_w1.weight=1
	#gen mwan3_policy
	uci add_list mwan3.balanced.use_member=${1}_m1_w1
}

#删除MWAN负载均衡相关配置
#$1:接口名称
mwan_cfg_del() {
	uci del mwan3.${1}
	uci del mwan3.${1}_m1_w1
	uci del_list mwan3.balanced.use_member=${1}_m1_w1
}

#添加macvlan设备
#$1:设虚拟备名称 $2:原始设备名称
macvlan_dev_add() {
	uci set network.macvlandev_${1}=device
	uci set network.macvlandev_${1}.name=${1}
	uci set network.macvlandev_${1}.ifname=${2}
	uci set network.macvlandev_${1}.type=macvlan
}

#添加PPPoE接口
#$1:接口名称 $2:设备名称 $3:账户 $4:密码 $5:网关跃点
pppoe_if_add() {
	#gen wan if
	uci set network.${1}=interface
	uci set network.${1}.ifname=${2}
	uci set network.${1}.proto=pppoe
	uci set network.${1}.username=${3}
	uci set network.${1}.password=${4}
	uci set network.${1}.metric=${5}
	#gen firewall
	fw_str="${fw_str} ${1}"
}

apply_cfg() {
	uci commit
	/etc/init.d/network restart
	killall pppconnectcheck
	/etc/init.d/firewall restart
	mwan3 restart
}

general_config_load() {
	config_load 'syncdial'
	config_get_bool enabled 'config' 'enabled'
	config_get_bool old_frame 'config' 'old_frame'
	[ $enabled -eq 0 ] && {
		echo "Disabled.Exit now."
		apply_cfg
		exit 1
	}
	config_get wannum 'config' 'wannum'

	config_load 'network'
	config_get pppoe_user 'wan' 'username'
	config_get pppoe_password 'wan' 'password'
	pppoe_ifname=$(uci get network.wan.ifname)
}

check_remove_device() {
	local devcfg=${1}
	[ ${devcfg::11} == 'macvlandev_' ] && uci del network.${devcfg}
}

check_remove_interface() {
	local ifcfg=${1}
	[ ${ifcfg::4} == 'vwan' ] && {
		uci del network.${ifcfg}
		mwan_cfg_del ${ifcfg} 
	}
}

general_config_remove() {
	config_load network
	config_foreach check_remove_device 'device'
	config_foreach check_remove_interface 'interface'
	[ $(uci get network.wan.proto) == "none" ] && {
		uci set network.wan.proto=pppoe
	}
	mwan_cfg_del 'wan'
	uci set firewall.@zone[1].network="wan wan6"
}


general_config_remove
general_config_load

uci set network.wan.metric=40
[ $old_frame -eq 1 ] && {
	uci set network.wan.proto=none
	ifname=$(uci get network.wan.ifname)
	for i in $(seq 1 $wannum)
	do
		ip link add link $ifname name macvlan$i type macvlan
		ifconfig macvlan$i hw ether $(echo $(cat /sys/class/net/$ifname/address|awk -F ":" '{print $1":"$2":"$3":"$4":"$5":" }')$(echo "" | awk -F ":" '{printf("%X\n", 16+i);}' i=$i))
		ifconfig macvlan$i up
	done
}
[ $old_frame -eq 0 ] && mwan_cfg_add wan

for i in $(seq 1 $wannum)
do
	[ $old_frame -eq 0 ] && macvlan_dev_add macvlan$i $pppoe_ifname
	pppoe_if_add vwan$i macvlan$i $pppoe_user $pppoe_password $((40+$i))
	mwan_cfg_add vwan$i
done

uci set firewall.@zone[1].network="$fw_str"

apply_cfg

return 0