#!/bin/sh /etc/rc.common

START=15

boot() {
	ip link add docker-lan type bridge
	ip link add docker-lan-op type veth peer name docker-lan-d
	ip link set docker-lan-d master docker-lan
	ip link set docker-lan-op up
	ip link set docker-lan-d up
}

start() {
	# in case docker-lan was destroyed
	ip link add docker-lan type bridge 2>/dev/null
	ip link set docker-lan-d master docker-lan 2>/dev/null

	docker network inspect docker-lan -f '{{.Name}}' >/dev/null 2>&1 && return 0

	local lanip=`ip addr show dev br-lan | grep -m1 'inet ' | head -1 | sed -nE 's#.*inet ([0-9\.]*)/([0-9]*) .*#\1#p'`
	local dockerip=172.25.1
	if [ -n "$lanip" ]; then
		local lanip3=`echo "$lanip" | cut -d. -f3`
		local lanip4=`echo "$lanip" | cut -d. -f4`
		dockerip=172.$(( $lanip3 & 7 | 24 )).$lanip4
	fi

	docker network create --subnet $dockerip.0/24 --gateway $dockerip.1 --ip-range $dockerip.0/25 \
		-d bridge -o com.docker.network.bridge.name=docker-lan docker-lan
}