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# Copyright 2021-2024 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/>.
# - T2450: drop interface-route and interface-route6 from "protocols vrf"
from vyos.configtree import ConfigTree
base = ['protocols', 'vrf']
def migrate(config: ConfigTree) -> None:
if not config.exists(base):
# Nothing to do
return
for vrf in config.list_nodes(base):
static_base = base + [vrf, 'static']
if not config.exists(static_base):
continue
#
# Migrate interface-route into route
#
interface_route_path = static_base + ['interface-route']
if config.exists(interface_route_path):
for route in config.list_nodes(interface_route_path):
interface = config.list_nodes(interface_route_path + [route, 'next-hop-interface'])
tmp = interface_route_path + [route, 'next-hop-interface']
for interface in config.list_nodes(tmp):
new_base = static_base + ['route', route, 'interface']
config.set(new_base)
config.set_tag(new_base)
config.copy(tmp + [interface], new_base + [interface])
config.delete(interface_route_path)
#
# Migrate interface-route6 into route6
#
interface_route_path = static_base + ['interface-route6']
if config.exists(interface_route_path):
for route in config.list_nodes(interface_route_path):
interface = config.list_nodes(interface_route_path + [route, 'next-hop-interface'])
tmp = interface_route_path + [route, 'next-hop-interface']
for interface in config.list_nodes(tmp):
new_base = static_base + ['route6', route, 'interface']
config.set(new_base)
config.set_tag(new_base)
config.copy(tmp + [interface], new_base + [interface])
config.delete(interface_route_path)
#
# Cleanup nodes inside route
#
route_path = static_base + ['route']
if config.exists(route_path):
for route in config.list_nodes(route_path):
next_hop = route_path + [route, 'next-hop']
if config.exists(next_hop):
for gateway in config.list_nodes(next_hop):
interface_path = next_hop + [gateway, 'next-hop-interface']
if config.exists(interface_path):
config.rename(interface_path, 'interface')
vrf_path = next_hop + [gateway, 'next-hop-vrf']
if config.exists(vrf_path):
config.rename(vrf_path, 'vrf')
next_hop = route_path + [route, 'interface']
if config.exists(next_hop):
for interface in config.list_nodes(next_hop):
interface_path = next_hop + [interface, 'next-hop-interface']
if config.exists(interface_path):
config.rename(interface_path, 'interface')
vrf_path = next_hop + [interface, 'next-hop-vrf']
if config.exists(vrf_path):
config.rename(vrf_path, 'vrf')
#
# Cleanup nodes inside route6
#
route_path = static_base + ['route6']
if config.exists(route_path):
for route in config.list_nodes(route_path):
next_hop = route_path + [route, 'next-hop']
if config.exists(next_hop):
for gateway in config.list_nodes(next_hop):
vrf_path = next_hop + [gateway, 'next-hop-vrf']
if config.exists(vrf_path):
config.rename(vrf_path, 'vrf')
next_hop = route_path + [route, 'interface']
if config.exists(next_hop):
for interface in config.list_nodes(next_hop):
interface_path = next_hop + [interface, 'next-hop-interface']
if config.exists(interface_path):
config.rename(interface_path, 'interface')
vrf_path = next_hop + [interface, 'next-hop-vrf']
if config.exists(vrf_path):
config.rename(vrf_path, 'vrf')
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