#!/bin/sh
# 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 3 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.

BOARD="$(uci get board.model.name)"
. /etc/network.$BOARD

if ! uci get network.$SWITCHDEV.ifname; then

    SWITCHHW=$(swconfig list | awk '{ print $4 }')

    uci set network.$SWITCHDEV=switch
    uci set network.$SWITCHDEV.name=$SWITCHHW
    uci set network.$SWITCHDEV.enable=1
    uci set network.$SWITCHDEV.reset=1
    uci set network.$SWITCHDEV.enable_vlan=1

    uci set network.${SWITCHDEV}_1=switch_vlan
    uci set network.${SWITCHDEV}_1.device=$SWITCHHW
    uci set network.${SWITCHDEV}_1.vlan=1
    uci set network.${SWITCHDEV}_1.ports="$CLIENT_PORTS"

    echo "# Allow IPv6 RAs on WAN Port" >> /etc/sysctl.conf

    if [[ "$WANDEV" = "$SWITCHDEV" ]]; then
        uci set network.${SWITCHDEV}_2=switch_vlan
        uci set network.${SWITCHDEV}_2.device=$SWITCHHW
        uci set network.${SWITCHDEV}_2.vlan=2
        uci set network.${SWITCHDEV}_2.ports="$WAN_PORTS"

        echo "net.ipv6.conf.$WANDEV.2.accept_ra_defrtr = 1" >> /etc/sysctl.conf
        echo "net.ipv6.conf.$WANDEV.2.accept_ra_pinfo = 1" >> /etc/sysctl.conf
        echo "net.ipv6.conf.$WANDEV.2.autoconf = 1" >> /etc/sysctl.conf
        echo "net.ipv6.conf.$WANDEV.2.accept_ra_rtr_pref = 1" >> /etc/sysctl.conf
    else
        echo "net.ipv6.conf.$WANDEV.accept_ra_defrtr = 1" >> /etc/sysctl.conf
        echo "net.ipv6.conf.$WANDEV.accept_ra_pinfo = 1" >> /etc/sysctl.conf
        echo "net.ipv6.conf.$WANDEV.autoconf = 1" >> /etc/sysctl.conf
        echo "net.ipv6.conf.$WANDEV.accept_ra_rtr_pref = 1" >> /etc/sysctl.conf
    fi
    
    uci set network.${SWITCHDEV}_3=switch_vlan
    uci set network.${SWITCHDEV}_3.device=$SWITCHHW
    uci set network.${SWITCHDEV}_3.vlan=3
    uci set network.${SWITCHDEV}_3.ports="$BATMAN_PORTS"

    uci set network.mesh.ifname="$SWITCHDEV.1 bat0"

    uci set network.ethmesh.ifname="$SWITCHDEV.3"

    if [[ "$WANDEV" = "$SWITCHDEV" ]]; then
        uci set network.wan.ifname=$WANDEV.2
    else
        uci set network.wan.ifname=$WANDEV
    fi

    uci commit
    /etc/init.d/network restart
fi

if [[ -n "$ETHMESHMAC" ]]; then
    if uci get network.ethmesh.macaddr
    then
        echo "MAC for ethmesh is set already"
    else
        echo "Fixing MAC on eth0.3 (ethmesh)"
        sleep 10
        NEW_MACADDR=$(cat /sys/class/net/$ETHMESHMAC/address)
        uci set network.ethmesh.macaddr=$NEW_MACADDR
        uci commit
        ifconfig eth0.3 down
        ifconfig eth0.3 hw ether $NEW_MACADDR
        ifconfig eth0.3 up
        /etc/init.d/network restart
    fi
fi

if [[ -n "$ROUTERMAC" ]]; then
    if uci get network.mesh.macaddr
    then
        echo "MAC for mesh is set already"
    else
        echo "Fixing MAC on br-mesh (mesh)"
        sleep 10
        NEW_MACADDR=$(cat /sys/class/net/$ROUTERMAC/address)
        uci set network.mesh.macaddr=$NEW_MACADDR
        uci commit
        ifconfig br-mesh down
        ifconfig br-mesh hw ether $NEW_MACADDR
        ifconfig br-mesh up
        /etc/init.d/network restart
    fi
fi

if [[ -n "$ETH0MAC" ]]; then
        echo "Fixing MAC on eth0"
        sleep 10
        NEW_MACADDR=$(cat "/sys/class/net/${ETH0MAC}/address")
        uci set network.eth0.macaddr=$NEW_MACADDR
        uci commit
        ifconfig eth0 down
        ifconfig eth0 hw ether $NEW_MACADDR
        ifconfig eth0 up
        /etc/init.d/network restart
fi

if uci get network.mesh.ip6addr
then
    echo "IPv6 for mesh is set already"
else
    # Some time needed :(
    sleep 5

    for ip in $(ip -6 addr show br-mesh | awk '/fdff/{ print $2 }'); do
        ip -6 addr del $ip dev br-mesh
    done

    prefix="fdff:0::/64"
    # Set $prefix::MAC as IP
    suffix=$(awk -F: '{ print $1$2":"$3$4":"$5$6 }' /sys/class/net/br-mesh/address)
    addr=$(echo $prefix | sed -e 's/\//'$suffix'\//')
    ip -6 addr add $addr dev br-mesh

    uci -q del network.globals
    uci -q set network.globals=globals
    uci -q set network.globals.ula_prefix=$prefix
    uci -q add_list network.mesh.ip6addr=$addr
    uci -q set network.mesh.proto=static

    # Set $prefix::1 as IP
    suffix="1"
    addr=$(echo $prefix | sed -e 's/\//'$suffix'\//')
    ip -6 addr add $addr dev br-mesh
    uci -q add_list network.mesh.ip6addr=$addr

    # Set $prefix::link-local as IP
    suffix=$(awk -F: '{ printf("%02x%s:%sff:fe%s:%s%s\n", xor(("0x"$1),2), $2, $3, $4, $5, $6) }' /sys/class/net/br-mesh/address)
    addr=$(echo $prefix | sed -e 's/\//'$suffix'\//')
    ip -6 addr add $addr dev br-mesh
    uci -q add_list network.mesh.ip6addr=$addr

    uci -q commit network

    /etc/init.d/fff-uradvd restart
fi