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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/>.
# T2264: combine IPv4/IPv6 name-server CLI syntax
# T2264: combine WINS CLI syntax
# T2264: remove RADIUS req-limit node
# T2264: migrate IPv6 prefix node to common CLI style
from vyos.configtree import ConfigTree
base = ['vpn', 'l2tp', 'remote-access']
def migrate(config: ConfigTree) -> None:
if not config.exists(base):
# Nothing to do
return
# Migrate IPv4 DNS servers
dns_base = base + ['dns-servers']
if config.exists(dns_base):
for server in ['server-1', 'server-2']:
if config.exists(dns_base + [server]):
dns = config.return_value(dns_base + [server])
config.set(base + ['name-server'], value=dns, replace=False)
config.delete(dns_base)
# Migrate IPv6 DNS servers
dns_base = base + ['dnsv6-servers']
if config.exists(dns_base):
for server in config.return_values(dns_base):
config.set(base + ['name-server'], value=server, replace=False)
config.delete(dns_base)
# Migrate IPv4 WINS servers
wins_base = base + ['wins-servers']
if config.exists(wins_base):
for server in ['server-1', 'server-2']:
if config.exists(wins_base + [server]):
wins = config.return_value(wins_base + [server])
config.set(base + ['wins-server'], value=wins, replace=False)
config.delete(wins_base)
# Remove RADIUS server req-limit node
radius_base = base + ['authentication', 'radius']
if config.exists(radius_base):
for server in config.list_nodes(radius_base + ['server']):
if config.exists(radius_base + ['server', server, 'req-limit']):
config.delete(radius_base + ['server', server, 'req-limit'])
# Migrate IPv6 prefixes
ipv6_base = base + ['client-ipv6-pool']
if config.exists(ipv6_base + ['prefix']):
prefix_old = config.return_values(ipv6_base + ['prefix'])
# delete old prefix CLI nodes
config.delete(ipv6_base + ['prefix'])
# create ned prefix tag node
config.set(ipv6_base + ['prefix'])
config.set_tag(ipv6_base + ['prefix'])
for p in prefix_old:
prefix = p.split(',')[0]
mask = p.split(',')[1]
config.set(ipv6_base + ['prefix', prefix, 'mask'], value=mask)
if config.exists(ipv6_base + ['delegate-prefix']):
prefix_old = config.return_values(ipv6_base + ['delegate-prefix'])
# delete old delegate prefix CLI nodes
config.delete(ipv6_base + ['delegate-prefix'])
# create ned delegation tag node
config.set(ipv6_base + ['delegate'])
config.set_tag(ipv6_base + ['delegate'])
for p in prefix_old:
prefix = p.split(',')[0]
mask = p.split(',')[1]
config.set(ipv6_base + ['delegate', prefix, 'delegate-prefix'], value=mask)
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