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

. /lib/functions/uci-defaults.sh

board_config_update

board=$(cat /proc/device-tree/compatible | tr '\0' '\t' | cut -f 1)

case "$board" in
tenda,ac9)
	ucidef_add_switch "switch0" \
		"1:lan" "2:lan" "3:lan" "4:lan" "8@eth0" "0:wan" "5@eth1"
	board_config_flush
	exit 0
	;;
buffalo,wxr-1900dhp| \
buffalo,wzr-1750dhp)
	ucidef_add_switch "switch0" \
		"0:lan:1" "1:lan:2" "2:lan:3" "3:lan:4" "4:wan:5" "5@eth0"
	board_config_flush
	exit 0
	;;
esac

wan_macaddr="$(nvram get wan_hwaddr)"
case "$board" in
asus,rt-ac87u)
	ifname=eth1
	etXmacaddr=$(nvram get et1macaddr)
	;;
dlink,dir-885l | \
netgear,r7900 | \
netgear,r8000 | \
netgear,r8500)
	ifname=eth2
	etXmacaddr=$(nvram get et2macaddr)
	;;
*)
	ifname=eth0
	etXmacaddr=$(nvram get et0macaddr)
	;;
esac

# If WAN MAC isn't explicitly set, calculate it using base MAC as reference.
[ -z "$wan_macaddr" -a -n "$etXmacaddr" ] && wan_macaddr=$(macaddr_add "$etXmacaddr" 1)

# Workaround for devices using eth2 connected to (CPU) switch port 8
case "$board" in
dlink,dir-885l | \
netgear,r7900 | \
netgear,r8000 | \
netgear,r8500)
	ifname=eth0
	ucidef_add_switch "switch0" \
		"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "5t@$ifname"

	# These devices should use eth2 so their eth0 interface often has no MAC
	# assigned. Manually assign eth2's MAC to the LAN.
	et2macaddr="$(nvram get et2macaddr)"
	[ -n "$et2macaddr" ] && ucidef_set_interface_macaddr "lan" "$et2macaddr"
	[ -n "$wan_macaddr" ] && ucidef_set_interface_macaddr "wan" "$wan_macaddr"

	board_config_flush
	exit 0
	;;
esac

# NVRAM entries may contain unsorted ports, e.g. Netgear R6250 uses
# vlan1ports=3 2 1 0 5*
# vlan2ports=4 5u
# and early Netgear R8000 was using
# vlan1ports=3 2 1 0 5 7 8*
vlan1ports="$(echo $(nvram get vlan1ports | tr " " "\n" | sort))"
vlan2ports="$(echo $(nvram get vlan2ports | tr " " "\n" | sort))"
if echo "$vlan1ports" | egrep -q "^1 2 3 4 5" && \
   echo "$vlan2ports" | egrep -q "^0 5"; then
	ucidef_add_switch "switch0" \
		"1:lan" "2:lan" "3:lan" "4:lan" "0:wan" "5t@$ifname"
elif echo "$vlan1ports" | egrep -q "^1 2 3 5 7" && \
     echo "$vlan2ports" | egrep -q "^0 7"; then
	ucidef_add_switch "switch0" \
		"1:lan" "2:lan" "3:lan" "5:lan" "0:wan" "7t@$ifname"
elif echo "$vlan1ports" | egrep -q "^0 1 2 3 5 7 8" && \
     echo "$vlan2ports" | egrep -q "^4 8"; then
	ucidef_add_switch "switch0" \
		"0:lan" "1:lan" "2:lan" "3:lan" "5:lan" "7:lan" "4:wan" "8t@$ifname"
else
	ucidef_add_switch "switch0" \
		"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "5t@$ifname"
fi

[ -n "$wan_macaddr" ] && ucidef_set_interface_macaddr "wan" "$wan_macaddr"

board_config_flush

exit 0