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# Copyright 2023-2024 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/>.
# T5154: allow only one ip address per family for parameter 'listen-address'
# Allow only one interface for parameter 'interface'
# If more than one are specified, remove such entries
from vyos.configtree import ConfigTree
from vyos.template import is_ipv4
from vyos.template import is_ipv6
base_path = ['service', 'ntp']
def migrate(config: ConfigTree) -> None:
if not config.exists(base_path):
# Nothing to do
return
if config.exists(base_path + ['listen-address']) and (len([addr for addr in config.return_values(base_path + ['listen-address']) if is_ipv4(addr)]) > 1):
for addr in config.return_values(base_path + ['listen-address']):
if is_ipv4(addr):
config.delete_value(base_path + ['listen-address'], addr)
if config.exists(base_path + ['listen-address']) and (len([addr for addr in config.return_values(base_path + ['listen-address']) if is_ipv6(addr)]) > 1):
for addr in config.return_values(base_path + ['listen-address']):
if is_ipv6(addr):
config.delete_value(base_path + ['listen-address'], addr)
if config.exists(base_path + ['interface']):
if len(config.return_values(base_path + ['interface'])) > 1:
config.delete(base_path + ['interface'])
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