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#!/usr/bin/env python3
#
# Copyright VyOS maintainers and contributors <maintainers@vyos.io>
#
# 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/>.
# T7646: restore behavior of IPv6 default route if only dhcpv6 was defined but
# not "ipv6 address autoconf"
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]):
iface_base_path = ['interfaces', type, interface]
dhcpv6_addr_path = iface_base_path + ['address']
if config.exists(dhcpv6_addr_path) and 'dhcpv6' in config.return_values(dhcpv6_addr_path):
autoconf_path = iface_base_path + ['ipv6', 'address', 'autoconf']
if not config.exists(autoconf_path):
config.set(autoconf_path)
vif_path = iface_base_path + ['vif']
if config.exists(vif_path):
for vif in config.list_nodes(vif_path):
vif_dhcpv6_addr_path = vif_path + [vif, 'address']
if config.exists(vif_dhcpv6_addr_path) and 'dhcpv6' in config.return_values(vif_dhcpv6_addr_path):
vif_autoconf_path = vif_path + [vif, 'ipv6', 'address', 'autoconf']
if not config.exists(vif_autoconf_path):
config.set(vif_autoconf_path)
vif_s_path = iface_base_path + ['vif-s']
if config.exists(vif_s_path):
for vif_s in config.list_nodes(vif_s_path):
vif_s_dhcpv6_addr_path = vif_s_path + [vif_s, 'address']
if config.exists(vif_s_dhcpv6_addr_path) and 'dhcpv6' in config.return_values(vif_s_dhcpv6_addr_path):
vif_s_autoconf_path = vif_s_path + [vif_s, 'ipv6', 'address', 'autoconf']
if not config.exists(vif_s_autoconf_path):
config.set(vif_s_autoconf_path)
vif_c_path = iface_base_path + ['vif-s', vif_s, 'vif-c']
if config.exists(vif_c_path):
for vif_c in config.list_nodes(vif_c_path):
vif_c_dhcpv6_addr_path = vif_c_path + [vif_c, 'address']
if config.exists(vif_c_dhcpv6_addr_path) and 'dhcpv6' in config.return_values(vif_c_dhcpv6_addr_path):
vif_c_autoconf_path = vif_c_path + [vif_c, 'ipv6', 'address', 'autoconf']
if not config.exists(vif_c_autoconf_path):
config.set(vif_c_autoconf_path)
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