#!/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/>. # T5729: Switch to valueless whenever is possible. # From # set firewall ... rule <rule> log enable # set firewall ... rule <rule> state <state> enable # set firewall ... rule <rule> log disable # set firewall ... rule <rule> state <state> disable # To # set firewall ... rule <rule> log # set firewall ... rule <rule> state <state> # Remove command if log=disable or <state>=disable 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) # State Policy logs: if config.exists(base + ['global-options', 'state-policy']): for state in config.list_nodes(base + ['global-options', 'state-policy']): if config.exists(base + ['global-options', 'state-policy', state, 'log']): log_value = config.return_value(base + ['global-options', 'state-policy', state, 'log']) config.delete(base + ['global-options', 'state-policy', state, 'log']) if log_value == 'enable': config.set(base + ['global-options', 'state-policy', state, 'log']) for family in ['ipv4', 'ipv6', 'bridge']: 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']): # Log if config.exists(base + [family, hook, priority, 'rule', rule, 'log']): log_value = config.return_value(base + [family, hook, priority, 'rule', rule, 'log']) config.delete(base + [family, hook, priority, 'rule', rule, 'log']) if log_value == 'enable': config.set(base + [family, hook, priority, 'rule', rule, 'log']) # State if config.exists(base + [family, hook, priority, 'rule', rule, 'state']): flag_enable = 'False' for state in ['established', 'invalid', 'new', 'related']: if config.exists(base + [family, hook, priority, 'rule', rule, 'state', state]): state_value = config.return_value(base + [family, hook, priority, 'rule', rule, 'state', state]) config.delete(base + [family, hook, priority, 'rule', rule, 'state', state]) if state_value == 'enable': config.set(base + [family, hook, priority, 'rule', rule, 'state'], value=state, replace=False) flag_enable = 'True' if flag_enable == 'False': config.delete(base + [family, hook, priority, 'rule', rule, 'state']) 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)