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# Copyright 2022-2024 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/>.
from ipaddress import ip_interface
from ipaddress import ip_address
from vyos.configtree import ConfigTree
from vyos.template import is_ipv4
base = ['protocols', 'static', 'arp']
tmp_base = ['protocols', 'static', 'arp-tmp']
def fixup_cli(config, path, interface, host):
if config.exists(path + ['address']):
for address in config.return_values(path + ['address']):
tmp = ip_interface(address)
# ARP is only available for IPv4 ;-)
if not is_ipv4(tmp):
continue
if ip_address(host) in tmp.network.hosts():
mac = config.return_value(tmp_base + [host, 'hwaddr'])
iface_path = ['protocols', 'static', 'arp', 'interface']
config.set(iface_path + [interface, 'address', host, 'mac'], value=mac)
config.set_tag(iface_path)
config.set_tag(iface_path + [interface, 'address'])
continue
def migrate(config: ConfigTree) -> None:
if not config.exists(base):
# Nothing to do
return
# We need a temporary copy of the config tree as the original one needs to be
# deleted first due to a change iun thge tagNode structure.
config.copy(base, tmp_base)
config.delete(base)
for host in config.list_nodes(tmp_base):
for type in config.list_nodes(['interfaces']):
for interface in config.list_nodes(['interfaces', type]):
if_base = ['interfaces', type, interface]
fixup_cli(config, if_base, interface, host)
if config.exists(if_base + ['vif']):
for vif in config.list_nodes(if_base + ['vif']):
vif_base = ['interfaces', type, interface, 'vif', vif]
fixup_cli(config, vif_base, f'{interface}.{vif}', host)
if config.exists(if_base + ['vif-s']):
for vif_s in config.list_nodes(if_base + ['vif-s']):
vif_s_base = ['interfaces', type, interface, 'vif-s', vif_s]
fixup_cli(config, vif_s_base, f'{interface}.{vif_s}', host)
if config.exists(if_base + ['vif-s', vif_s, 'vif-c']):
for vif_c in config.list_nodes(if_base + ['vif-s', vif_s, 'vif-c']):
vif_c_base = ['interfaces', type, interface, 'vif-s', vif_s, 'vif-c', vif_c]
fixup_cli(config, vif_c_base, f'{interface}.{vif_s}.{vif_c}', host)
config.delete(tmp_base)
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