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# Copyright 2024 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library. If not, see <http://www.gnu.org/licenses/>.
# T4982: Retain prior default TLS version (v1.0) when upgrading installations with existing openconnect configurations
from vyos.configtree import ConfigTree
cfg_base = ['vpn', 'openconnect']
def migrate(config: ConfigTree) -> None:
# bail out early if service is unconfigured
if not config.exists(cfg_base):
return
# new default is TLS 1.2 - set explicit old default value of TLS 1.0 for upgraded configurations to keep compatibility
tls_min_path = cfg_base + ['tls-version-min']
if not config.exists(tls_min_path):
config.set(tls_min_path, value='1.0')
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