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#!/usr/bin/env python3
#
# Copyright (C) 2021 VyOS maintainers and contributors
#
# 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/>.
# - T2450: drop interface-route and interface-route6 from "protocols vrf"
from sys import argv
from sys import exit
from vyos.configtree import ConfigTree
if (len(argv) < 2):
print("Must specify file name!")
exit(1)
file_name = argv[1]
with open(file_name, 'r') as f:
config_file = f.read()
base = ['protocols', 'vrf']
config = ConfigTree(config_file)
if not config.exists(base):
# Nothing to do
exit(0)
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')
try:
with open(file_name, 'w') as f:
f.write(config.to_string())
except OSError as e:
print("Failed to save the modified config: {}".format(e))
exit(1)

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