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#!/bin/bash
#
# Copyright (C) 2021 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
DHCP_HOOK_IFLIST="/tmp/ipsec_dhcp_interfaces"
if ! { [ -f $DHCP_HOOK_IFLIST ] && grep -qw $interface $DHCP_HOOK_IFLIST; }; then
exit 0
fi
# Re-generate the config on the following events:
# - BOUND: always re-generate
# - RENEW: re-generate if the IP address changed
# - REBIND: re-generate if the IP address changed
if [ "$reason" == "RENEW" ] || [ "$reason" == "REBIND" ]; then
if [ "$old_ip_address" == "$new_ip_address" ]; then
exit 0
fi
elif [ "$reason" != "BOUND" ]; then
exit 0
fi
# Best effort wait for any active commit to finish
sudo python3 - <<PYEND
from vyos.utils.commit import wait_for_commit_lock
if __name__ == '__main__':
wait_for_commit_lock()
exit(0)
PYEND
# Now re-generate the config
sudo /usr/libexec/vyos/conf_mode/vpn_ipsec.py
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