From 51abbc0f1b2ccf4785cf7f29f1fe6f4af6007ee6 Mon Sep 17 00:00:00 2001 From: Nicolas Fort Date: Wed, 25 Oct 2023 11:59:01 +0000 Subject: T5681: Firewall,Nat and Nat66: simplified and standarize interface matcher (valid for interfaces and groups) in firewal, nat and nat66. --- src/migration-scripts/nat/6-to-7 | 67 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100755 src/migration-scripts/nat/6-to-7 (limited to 'src/migration-scripts/nat') diff --git a/src/migration-scripts/nat/6-to-7 b/src/migration-scripts/nat/6-to-7 new file mode 100755 index 000000000..b5f6328ef --- /dev/null +++ b/src/migration-scripts/nat/6-to-7 @@ -0,0 +1,67 @@ +#!/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 . + +# T5681: Firewall re-writing. Simplify cli when mathcing interface +# From +# 'set nat [source|destination] rule X [inbound-interface|outbound interface] interface-name ' +# 'set nat [source|destination] rule X [inbound-interface|outbound interface] interface-group ' +# to +# 'set nat [source|destination] rule X [inbound-interface|outbound interface] name ' +# 'set nat [source|destination] rule X [inbound-interface|outbound interface] group ' + +from sys import argv,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() + +config = ConfigTree(config_file) + +if not config.exists(['nat']): + # Nothing to do + exit(0) + +for direction in ['source', 'destination']: + # If a node doesn't exist, we obviously have nothing to do. + if not config.exists(['nat', direction]): + continue + + # However, we also need to handle the case when a 'source' or 'destination' sub-node does exist, + # but there are no rules under it. + if not config.list_nodes(['nat', direction]): + continue + + for rule in config.list_nodes(['nat', direction, 'rule']): + base = ['nat', direction, 'rule', rule] + for iface in ['inbound-interface','outbound-interface']: + if config.exists(base + [iface]): + if config.exists(base + [iface, 'interface-name']): + tmp = config.return_value(base + [iface, 'interface-name']) + config.delete(base + [iface, 'interface-name']) + config.set(base + [iface, 'name'], value=tmp) + +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) -- cgit v1.2.3