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#!/usr/bin/env python3
#
# Copyright (C) 2023 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/>.
# T5681: Firewall re-writing. Simplify cli when mathcing interface
# From
# set firewall ... rule <rule> [inbound-interface | outboubd-interface] interface-name <iface>
# set firewall ... rule <rule> [inbound-interface | outboubd-interface] interface-group <iface_group>
# To
# set firewall ... rule <rule> [inbound-interface | outboubd-interface] name <iface>
# set firewall ... rule <rule> [inbound-interface | outboubd-interface] group <iface_group>
import re
from sys import argv
from sys import exit
from vyos.configtree import ConfigTree
from vyos.ifconfig import Section
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 = ['firewall']
config = ConfigTree(config_file)
if not config.exists(base):
# Nothing to do
exit(0)
## FORT
## Migration from base chains
#if config.exists(base + ['interface', iface, direction]):
for family in ['ipv4', 'ipv6']:
if config.exists(base + [family]):
for hook in ['forward', 'input', 'output', 'name']:
if config.exists(base + [family, hook]):
for priority in config.list_nodes(base + [family, hook]):
if config.exists(base + [family, hook, priority, 'rule']):
for rule in config.list_nodes(base + [family, hook, priority, 'rule']):
for direction in ['inbound-interface', 'outbound-interface']:
if config.exists(base + [family, hook, priority, 'rule', rule, direction]):
if config.exists(base + [family, hook, priority, 'rule', rule, direction, 'interface-name']):
iface = config.return_value(base + [family, hook, priority, 'rule', rule, direction, 'interface-name'])
config.set(base + [family, hook, priority, 'rule', rule, direction, 'name'], value=iface)
config.delete(base + [family, hook, priority, 'rule', rule, direction, 'interface-name'])
elif config.exists(base + [family, hook, priority, 'rule', rule, direction, 'interface-group']):
group = config.return_value(base + [family, hook, priority, 'rule', rule, direction, 'interface-group'])
config.set(base + [family, hook, priority, 'rule', rule, direction, 'group'], value=group)
config.delete(base + [family, hook, priority, 'rule', rule, direction, 'interface-group'])
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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