From 863e67beeff61819fb66e47a29becff8925dfdb7 Mon Sep 17 00:00:00 2001 From: sarthurdev <965089+sarthurdev@users.noreply.github.com> Date: Wed, 28 Feb 2024 23:12:42 +0100 Subject: dhcp-server: T6079: Disable duplicate static-mappings on migration --- src/migration-scripts/dhcp-server/6-to-7 | 76 ++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100755 src/migration-scripts/dhcp-server/6-to-7 (limited to 'src/migration-scripts') diff --git a/src/migration-scripts/dhcp-server/6-to-7 b/src/migration-scripts/dhcp-server/6-to-7 new file mode 100755 index 000000000..12e437f12 --- /dev/null +++ b/src/migration-scripts/dhcp-server/6-to-7 @@ -0,0 +1,76 @@ +#!/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 . + +# T6079: Disable duplicate static mappings + +import sys +from vyos.configtree import ConfigTree + +if len(sys.argv) < 2: + print("Must specify file name!") + sys.exit(1) + +file_name = sys.argv[1] + +with open(file_name, 'r') as f: + config_file = f.read() + +base = ['service', 'dhcp-server'] +config = ConfigTree(config_file) + +if not config.exists(base + ['shared-network-name']): + # Nothing to do + exit(0) + +# Run this for every instance if 'shared-network-name' +for network in config.list_nodes(base + ['shared-network-name']): + base_network = base + ['shared-network-name', network] + + if not config.exists(base_network + ['subnet']): + continue + + for subnet in config.list_nodes(base_network + ['subnet']): + base_subnet = base_network + ['subnet', subnet] + + if config.exists(base_subnet + ['static-mapping']): + used_mac = [] + used_ip = [] + + for mapping in config.list_nodes(base_subnet + ['static-mapping']): + base_mapping = base_subnet + ['static-mapping', mapping] + + if config.exists(base_mapping + ['mac-address']): + mac = config.return_value(base_mapping + ['mac-address']) + + if mac in used_mac: + config.set(base_mapping + ['disable']) + else: + used_mac.append(mac) + + if config.exists(base_mapping + ['ip-address']): + ip = config.return_value(base_mapping + ['ip-address']) + + if ip in used_ip: + config.set(base_subnet + ['static-mapping', mapping, 'disable']) + else: + used_ip.append(ip) + +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