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#!/usr/bin/env python

# The Cisco Unity plugin, that implements a proprietary extension
# for IPsec split tunneling, interfers with DMVPN
#
# Since we do not do remote access IPsec, the simplest solution
# is to disable it entirely from the start.

import re

# Disable the cisco_unity option in charon.conf
with open('/etc/strongswan.d/charon.conf', 'r') as f:
    charon_conf = f.read()

    charon_conf = re.sub(r'# (cisco_unity = no)', r"\1", charon_conf)

with open('/etc/strongswan.d/charon.conf', 'w') as f:
    f.write(charon_conf)


# Prevent the unity plugin from loading

with open('/etc/strongswan.d/charon/unity.conf', 'r') as f:
    unity_conf = f.read()

    unity_conf = re.sub(r'load = yes', r'load = no', unity_conf)

with open('/etc/strongswan.d/charon/unity.conf', 'w') as f:
    f.write(unity_conf)