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

###
#
# RO.B.IN - 2007 by Antonio Anselmi <a.anselmi-at-oltrelinux-dot-com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
###

# /init.d/configure
START=24

ME="configure"
yes="1"


ME_NET=$(uci get mesh.iface.net)
AP_IF=$(uci get mesh.ap.device)
AP_NET=$(uci get mesh.ap.net)
AP_PREFIX=$(uci get mesh.ap.prefix)
MyAP_NET=$(uci get mesh.Myap.net)
MyAP_PREFIX=$(uci get mesh.Myap.prefix)

AP1_bridge=$(uci get iprules.filter.AP1_bridge)
AP2_bridge=$(uci get iprules.filter.AP2_bridge)

ap1_time=$(uci get dhcpd.lease.ap1_time)
ap2_time=$(uci get dhcpd.lease.ap2_time)
if [ "$ap1_time" -eq 0 ] ; then
	ap1_lease_time="infinite"
	else
	ap1_lease_time="${ap1_time}h"
fi
if [ "$ap2_time" -eq 0 ] ; then
	ap2_lease_time="infinite"
	else
	ap2_lease_time="${ap2_time}h"
fi

my_MAC=$(uci get node.general.myMAC)

# path
NODE_CONF="/etc/config/node"
BAT_CONF="/etc/config/batman"
RESOLV_CONF="/etc/resolv.conf"
DNSMASQ_AP="/etc/dnsmasq.ap.conf"
DNSMASQ_MyAP="/etc/dnsmasq.Myap.conf"
 

hex2dec () {
	local i=$1
	let x=0x$(echo $my_MAC | cut $i)
	echo $x
}
 
 
get_IP4 () {
	local iface=$1

	case $iface in
	
	mesh)
		IP_mesh="${ME_NET}.$(hex2dec -c10-11).$(hex2dec -c13-14).$(hex2dec -c16-17)"	
	
		uci set network.mesh.ipaddr=$IP_mesh	
		uci set node.general.IP_mesh=$IP_mesh
		logger -s -t  "$ME" "ath0 IP is $IP_mesh"
		;;
	
	ap)
		IP_ap="${AP_NET}.$(hex2dec -c13-14).$(hex2dec -c16-17)"
		ap_ssid="open-mesh_$(hex2dec -c16-17)"
		
		ap1_ipaddr="${IP_ap}.1"
		
		ap_s_lease="${IP_ap}.10" ; ap_e_lease="${IP_ap}.110"	
		IP_ap="${IP_ap}.1/${AP_PREFIX}"
		
		logger -s -t  "$ME" "ath1 IP is $IP_ap"		
		uci set node.general.ap_ssid="${ap_ssid}"		
		uci set node.general.IP_ap=$IP_ap
	
		;;
	
	Myap)
		IP_Myap="${MyAP_NET}.$(hex2dec -c13-14).$(hex2dec -c16-17)"

		uci set network.ap2.ipaddr="${IP_Myap}.129"	
			
		Myap_s_lease="${IP_Myap}.140" ; Myap_e_lease="${IP_Myap}.240"	
		IP_Myap="${IP_Myap}.129/${MyAP_PREFIX}"	
		logger -s -t  "$ME" "ath2 IP is $IP_Myap"			
		uci set node.general.IP_Myap=$IP_Myap
		;;
	
	esac
}
	
	
discover_role () {
						
	ACK_LEASE=$(uci get gps.switches.sw_2)
						
	case $ACK_LEASE in
						
		"1") # we are a GATEWAY 
			uci set batman.node.node_type=gateway
			node_role=1
			captive_iface=$AP_IF
			
			ipaddr=$(ifconfig eth0 | grep 'inet addr:'| cut -d: -f2 | awk '{ print $1}')
			netmask=$(ifconfig eth0 | grep 'Mask:'| cut -d: -f4)
			uci set network.lan.ipaddr=$ipaddr	
			uci set network.lan.netmask=$netmask
			uci commit network
			;;
		 		
		"0") # we are a REPEATER 
			uci set batman.node.node_type=client
			node_role=3
			
			if [ "$(uci get management.enable.bridge)" -eq 0 ] ; then
 				node_role=2
				captive_iface=$AP_IF	
				else	
				node_role=3			
				captive_iface="br-lan"
			fi 
			;;
				
	esac
	uci commit batman		
}


configure_VAP1 () { 

	local eth0_inet="192.168.84.1"
	get_IP4 ap
					
	case $node_role in
	
			1) # gateway
				logger -s -t  "$ME" "node is a gateway"	
				uci set wireless.public.network="ap1"

				uci del network.lan.type		
#				network.lan.ipaddr and netmask already configured	
				uci set network.ap1.ipaddr=$ap1_ipaddr	
				uci set network.ap1.netmask="255.255.255.128"
				uci commit network	
				;;
				
			2) # default repeater 
				logger -s -t  "$ME" "node is a repeater"
				uci set wireless.public.network="ap1"

				uci del network.lan.type							
				uci set network.lan.ipaddr=$eth0_inet	
				uci set network.lan.netmask="255.255.255.0"	
							
				uci set network.ap1.ipaddr=$ap1_ipaddr		
				uci set network.ap1.netmask="255.255.255.128"
				uci commit network
				;;

			3) # LAN-WIFI.PUBLIC bridged repeater 
				logger -s -t  "$ME" "node is a repeater"			
				uci set wireless.public.network="lan"	

				uci set network.lan.type="bridge"
				uci set network.lan.ipaddr=$ap1_ipaddr	
				uci set network.lan.netmask="255.255.255.128"	
							
				uci del network.ap1.ipaddr		
				uci del network.ap1.netmask
				uci commit network	
				;;

	esac

	uci set wireless.public.isolate="${AP1_bridge}"
	uci commit wireless
		
	eval $(ipcalc -m $IP_ap)			
	range="${ap_s_lease},${ap_e_lease},${NETMASK},${ap1_lease_time}"
	pippo="${AP_NET}.$(hex2dec -c13-14).$(hex2dec -c16-17).1"
			
	rm -f $DNSMASQ_AP > /dev/null 2>&1	
	cat >> $DNSMASQ_AP << fine
port=5353
domain-needed
bogus-priv
filterwin2k
dhcp-authoritative
dhcp-leasefile=/tmp/dhcp.ap.leases
dhcp-range=$range
dhcp-option=3,$pippo
dhcp-option=6,$pippo
fine
#
}
		
		
configure_VAP2 () { 
	get_IP4 Myap

	uci set wireless.private.isolate="${AP2_bridge}"
	uci commit wireless
			
	eval $(ipcalc -m $IP_Myap)
	range="${Myap_s_lease},${Myap_e_lease},${NETMASK},${ap2_lease_time}"
	pippo="${MyAP_NET}.$(hex2dec -c13-14).$(hex2dec -c16-17).129"
			
	rm -f $DNSMASQ_MyAP > /dev/null 2>&1
	cat >> $DNSMASQ_MyAP << fine
port=5354
dhcp-authoritative
domain-needed
bogus-priv
filterwin2k							
dhcp-leasefile=/tmp/dhcp.Myap.leases
dhcp-range=$range 
dhcp-option=3,$pippo 
dhcp-option=6,$pippo
fine
#
}


start () {
		
		get_IP4 mesh
		discover_role
	
		configure_VAP1
		configure_VAP2
	
		
		case $(uci get management.enable.captive_portal) in
			sputnik) 
			;;
		
			nodogsplash) 
				cp /etc/nodogsplash/nodogsplash.conf.std /tmp/nodog.conf
				echo "GatewayInterface    " $captive_iface >> /tmp/nodog.conf
				cp /tmp/nodog.conf /etc/nodogsplash/nodogsplash.conf					
			;;
		
			wifidog)
				echo "# Autogenerated Gateway Info: " >> /tmp/wifidog.conf
				echo "GatewayID" $my_MAC >> /tmp/wifidog.conf 
              		# We're not using experimental, so it's gate0
				echo "ExternalInterface gate0" >> /tmp/wifidog.conf
				echo "GatewayInterface" $captive_iface >> /tmp/wifidog.conf
				cat /etc/wifidog/wifidog.conf.tail >> /tmp/wifidog.conf
				rm /etc/wifidog.conf
				cp /tmp/wifidog.conf /etc/wifidog.conf
			;;	
		
			*)
			;;
		esac

		uci commit 

}

#