#!/bin/sh
if [ "$(/sbin/uci -c /etc/config.mesh -q get aredn.@tunnel[0])" != "tunnel" ]; then
    /sbin/uci -c /etc/config.mesh -q add aredn tunnel
    /sbin/uci -c /etc/config.mesh -q set aredn.@tunnel[0].maxclients=10
    /sbin/uci -c /etc/config.mesh -q set aredn.@tunnel[0].maxservers=10
    /sbin/uci -c /etc/config.mesh -q commit aredn
fi
clients=$(/sbin/uci -c /etc/config.mesh -q get aredn.@tunnel[0].maxclients)
servers=$(/sbin/uci -c /etc/config.mesh -q get aredn.@tunnel[0].maxservers)
maxtun=$((49 + $clients + $servers))

# Check we have sufficient tunnels and regenerate network_tun if not
if [ "$(/sbin/uci -c /etc/config.mesh -q get network_tun.tun$maxtun)" != "interface" -o "$(/sbin/uci -c /etc/config.mesh -q get network_tun.tun$((1 + $maxtun)))" != "" ]; then
    cp /dev/null /etc/config.mesh/network_tun
    for tun in $(seq 50 $maxtun)
    do
        cat >> /etc/config.mesh/network_tun <<__EOT__
config interface 'tun$tun'
    option ifname 'tun$tun'
    option proto 'none'

__EOT__
    done
fi