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# Copyright 2020-2024 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/>.
# - rename 'dhcpv6-options prefix-delegation' from single node to a new tag node
# 'dhcpv6-options pd 0'
# - delete 'sla-len' from CLI - value is calculated on demand
from vyos.configtree import ConfigTree
def migrate(config: ConfigTree) -> None:
for type in config.list_nodes(['interfaces']):
for interface in config.list_nodes(['interfaces', type]):
# cache current config tree
base_path = ['interfaces', type, interface, 'dhcpv6-options']
old_base = base_path + ['prefix-delegation']
new_base = base_path + ['pd']
if config.exists(old_base):
config.set(new_base)
config.set_tag(new_base)
config.copy(old_base, new_base + ['0'])
config.delete(old_base)
for pd in config.list_nodes(new_base):
for tmp in config.list_nodes(new_base + [pd, 'interface']):
sla_config = new_base + [pd, 'interface', tmp, 'sla-len']
if config.exists(sla_config):
config.delete(sla_config)
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