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#!/usr/bin/env python3
#
# Copyright (C) 2023 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 (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()
base = ['vpn', 'ipsec']
config = ConfigTree(config_file)
if not config.exists(base):
# Nothing to do
exit(0)
# PEER changes
if config.exists(base + ['site-to-site', 'peer']):
for peer in config.list_nodes(base + ['site-to-site', 'peer']):
peer_base = base + ['site-to-site', 'peer', peer]
# replace: 'ipsec site-to-site peer <tag> authentication pre-shared-secret xxx'
# => 'ipsec authentication psk <tag> secret xxx'
if config.exists(peer_base + ['authentication', 'pre-shared-secret']):
tmp = config.return_value(peer_base + ['authentication', 'pre-shared-secret'])
config.delete(peer_base + ['authentication', 'pre-shared-secret'])
config.set(base + ['authentication', 'psk', peer, 'secret'], value=tmp)
# format as tag node to avoid loading problems
config.set_tag(base + ['authentication', 'psk'])
# Get id's from peers for "ipsec auth psk <tag> id xxx"
if config.exists(peer_base + ['authentication', 'local-id']):
local_id = config.return_value(peer_base + ['authentication', 'local-id'])
config.set(base + ['authentication', 'psk', peer, 'id'], value=local_id, replace=False)
if config.exists(peer_base + ['authentication', 'remote-id']):
remote_id = config.return_value(peer_base + ['authentication', 'remote-id'])
config.set(base + ['authentication', 'psk', peer, 'id'], value=remote_id, replace=False)
if config.exists(peer_base + ['local-address']):
tmp = config.return_value(peer_base + ['local-address'])
config.set(base + ['authentication', 'psk', peer, 'id'], value=tmp, replace=False)
if config.exists(peer_base + ['remote-address']):
tmp = config.return_values(peer_base + ['remote-address'])
if tmp:
for remote_addr in tmp:
if remote_addr == 'any':
remote_addr = '%any'
config.set(base + ['authentication', 'psk', peer, 'id'], value=remote_addr, replace=False)
# get DHCP peer interface as psk dhcp-interface
if config.exists(peer_base + ['dhcp-interface']):
tmp = config.return_value(peer_base + ['dhcp-interface'])
config.set(base + ['authentication', 'psk', peer, 'dhcp-interface'], value=tmp)
try:
with open(file_name, 'w') as f:
f.write(config.to_string())
except OSError as e:
print(f'Failed to save the modified config: {e}')
exit(1)
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