#!/bin/sh

set -eux pipefail

# containerlab needs some time to setup links
sleep $CONTAINERLAB_TIMEOUT

if [ "$ROUTER" = "yes" ]; then
    echo "Configuring as router..."

    ip link add br0 type bridge

    ip addr add 192.168.100.1/24 dev br0
    ip addr add 172.16.100.1/24 dev br0

    ip link set dev br0 up

    ip link set eth1 up
    ip link set eth2 up
    ip link set eth3 up
    ip link set eth4 up

    ip link set eth1 master br0
    ip link set eth2 master br0
    ip link set eth3 master br0
    ip link set eth4 master br0

    echo "Router setup complete"

else
    echo "Configuring as host with CIDR=$CIDR and GATEWAY=$GATEWAY"

    ip link set eth1 up
    ip addr add $CIDR dev eth1
    ip route add default via $GATEWAY dev eth1

    echo "Host setup complete"
fi

sleep infinity