startup.sh

#!/bin/sh
echo "startup: start "$(date)
echo "startup: wipe the old file";
rm -f /etc/ipsec.d/*.db
rm -f /run/pluto/pluto.pid
rm -f /var/run/xl2tpd.pid
# Run VPN if VPN_ENABLE is 1
if [[ $VPN_ENABLE -eq 1 ]];then
  echo "startup: start vpn "$(date)
  echo "startup: configuring vpn client."
  # template out all the config files using env vars
  sed -i 's/right=.*/right='$VPN_SERVER'/' /etc/ipsec.conf
  echo ': PSK "'$VPN_PSK'"' > /etc/ipsec.secrets
  sed -i 's/lns = .*/lns = '$VPN_SERVER'/' /etc/xl2tpd/xl2tpd.conf
  sed -i 's/name .*/name '$VPN_USERNAME'/' /etc/ppp/options.l2tpd.client
  sed -i 's/password .*/password '$VPN_PASSWORD'/' /etc/ppp/options.l2tpd.client

  # startup ipsec tunnel
  ipsec initnss
  sleep 1
  ipsec pluto --stderrlog --config /etc/ipsec.conf
  sleep 5
  #ipsec setup start
  #sleep 1
  #ipsec auto --add L2TP-PSK
  #sleep 1
  ipsec auto --up L2TP-PSK
  sleep 3
  ipsec --status
  sleep 3

  # startup xl2tpd ppp daemon then send it a connect command
  (sleep 7 \
    && echo "startup/vpn: send connect command to vpn client." \
    && echo "c myVPN" > /var/run/xl2tpd/l2tp-control) &
  echo "startup/vpn: start vpn client daemon."
  exec /usr/sbin/xl2tpd -p /var/run/xl2tpd.pid -c /etc/xl2tpd/xl2tpd.conf -C /var/run/xl2tpd/l2tp-control -D &

else
  echo "startup/vpn: Ignore vpn client."$(date)
fi

# Wolffsohn - setup VPN provider route via local network, otherwise when default route set to ppp0 VPN, the VPN will stop working.
# Get Default Gateway
DEFAULT_ROUTE_IP=$(route | grep eth0 | grep default | awk '{print $2}')
echo DEFAULT_ROUTE_IP=$DEFAULT_ROUTE_IP
# route add 90.155.53.19 gw $DEFAULT_ROUTE_IP
# WOlffsohn - following is only needed if in a BRIDGED docker
route add -net $DEFAULT_ROUTE_IP/24 gw $DEFAULT_ROUTE_IP

# Run socks5 server after 10 Seconds if SCOKS5_ENABLE is 1
if [[ $SCOKS5_ENABLE -eq 1 ]];then
  echo "startup/socks5: waiting for ppp0 "$(date)
  (while [[ "$(route | grep ppp0|wc -l)" = "0" ]]; do sleep 1; done \
    && echo "startup/socks5: Socks5 will start in $SCOKS5_START_DELAY seconds "$(date) \
    && sleep $SCOKS5_START_DELAY \
    && sockd -N $SCOKS5_FORKS) &
else
  echo "startup/socks5: Ignore socks5 server."$(date);
fi
# max wait 120s
for j in $(seq 1 120)
do
  echo "wait $j"
  if [[ "$(route | grep ppp0|wc -l)" = "1" ]]; then
    /successful.sh;
    break;
  else
    sleep 1;
  fi
done
route
sleep 30;
# Check online every 10 seconds
while [[ "$(route | grep ppp0|wc -l)" != "0" ]]; do
  sleep 10;
done
echo "startup: VPN connection failed ";
echo "startup: restart docker "$(date);

exit