#!/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/>. # T3090: migrate "firewall options interface <name> adjust-mss" to the # individual interface. 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', 'options', 'interface'] config = ConfigTree(config_file) if not config.exists(base): # Nothing to do exit(0) for interface in config.list_nodes(base): if config.exists(base + [interface, 'disable']): continue if config.exists(base + [interface, 'adjust-mss']): section = Section.section(interface) tmp = config.return_value(base + [interface, 'adjust-mss']) vlan = interface.split('.') base_interface_path = ['interfaces', section, vlan[0]] if len(vlan) == 1: # Normal interface, no VLAN config.set(base_interface_path + ['ip', 'adjust-mss'], value=tmp) elif len(vlan) == 2: # Regular VIF or VIF-S interface - we need to check the config vif = vlan[1] if config.exists(base_interface_path + ['vif', vif]): config.set(base_interface_path + ['vif', vif, 'ip', 'adjust-mss'], value=tmp) elif config.exists(base_interface_path + ['vif-s', vif]): config.set(base_interface_path + ['vif-s', vif, 'ip', 'adjust-mss'], value=tmp) elif len(vlan) == 3: # VIF-S interface with VIF-C subinterface vif_s = vlan[1] vif_c = vlan[2] config.set(base_interface_path + ['vif-s', vif_s, 'vif-c', vif_c, 'ip', 'adjust-mss'], value=tmp) config.set_tag(base_interface_path + ['vif-s']) config.set_tag(base_interface_path + ['vif-s', vif_s, 'vif-c']) if config.exists(base + [interface, 'adjust-mss6']): section = Section.section(interface) tmp = config.return_value(base + [interface, 'adjust-mss6']) vlan = interface.split('.') base_interface_path = ['interfaces', section, vlan[0]] if len(vlan) == 1: # Normal interface, no VLAN config.set(['interfaces', section, interface, 'ipv6', 'adjust-mss'], value=tmp) elif len(vlan) == 2: # Regular VIF or VIF-S interface - we need to check the config vif = vlan[1] if config.exists(base_interface_path + ['vif', vif]): config.set(base_interface_path + ['vif', vif, 'ipv6', 'adjust-mss'], value=tmp) config.set_tag(base_interface_path + ['vif']) elif config.exists(base_interface_path + ['vif-s', vif]): config.set(base_interface_path + ['vif-s', vif, 'ipv6', 'adjust-mss'], value=tmp) config.set_tag(base_interface_path + ['vif-s']) elif len(vlan) == 3: # VIF-S interface with VIF-C subinterface vif_s = vlan[1] vif_c = vlan[2] config.set(base_interface_path + ['vif-s', vif_s, 'vif-c', vif_c, 'ipv6', 'adjust-mss'], value=tmp) config.set_tag(base_interface_path + ['vif-s']) config.set_tag(base_interface_path + ['vif-s', vif_s, 'vif-c']) config.delete(['firewall', 'options']) 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)