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#!/usr/bin/env python3
#
# 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/>.
from sys import argv
from sys import exit
from vyos.configtree import ConfigTree
if __name__ == '__main__':
if (len(argv) < 1):
print("Must specify file name!")
exit(1)
file_name = argv[1]
with open(file_name, 'r') as f:
config_file = f.read()
config = ConfigTree(config_file)
for type in ['tunnel', 'l2tpv3']:
base = ['interfaces', type]
if not config.exists(base):
# Nothing to do
continue
for interface in config.list_nodes(base):
# Migrate "interface tunnel <tunX> encapsulation gre-bridge" to gretap
encap_path = base + [interface, 'encapsulation']
if type == 'tunnel' and config.exists(encap_path):
tmp = config.return_value(encap_path)
if tmp == 'gre-bridge':
config.set(encap_path, value='gretap')
# Migrate "interface tunnel|l2tpv3 <interface> local-ip" to source-address
# Migrate "interface tunnel|l2tpv3 <interface> remote-ip" to remote
local_ip_path = base + [interface, 'local-ip']
if config.exists(local_ip_path):
config.rename(local_ip_path, 'source-address')
remote_ip_path = base + [interface, 'remote-ip']
if config.exists(remote_ip_path):
config.rename(remote_ip_path, 'remote')
try:
with open(file_name, 'w') as f:
f.write(config.to_string())
except OSError as e:
print("Failed to save the modified config: {}".format(e))
exit(1)
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