diff options
Diffstat (limited to 'src/migration-scripts/dhcpv6-server/4-to-5')
| -rw-r--r--[-rwxr-xr-x] | src/migration-scripts/dhcpv6-server/4-to-5 | 140 |
1 files changed, 61 insertions, 79 deletions
diff --git a/src/migration-scripts/dhcpv6-server/4-to-5 b/src/migration-scripts/dhcpv6-server/4-to-5 index 55fda91b3..ad18e1a84 100755..100644 --- a/src/migration-scripts/dhcpv6-server/4-to-5 +++ b/src/migration-scripts/dhcpv6-server/4-to-5 @@ -1,91 +1,73 @@ -#!/usr/bin/env python3 +# Copyright 2024 VyOS maintainers and contributors <maintainers@vyos.io> # -# Copyright (C) 2024 VyOS maintainers and contributors +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. # -# 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, +# This library 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. +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser 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/>. +# You should have received a copy of the GNU Lesser General Public License +# along with this library. If not, see <http://www.gnu.org/licenses/>. # T5993: Check if subnet is locally accessible and assign interface to subnet -import sys from ipaddress import ip_network from vyos.configtree import ConfigTree -if (len(sys.argv) < 1): - 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', 'dhcpv6-server', 'shared-network-name'] -config = ConfigTree(config_file) - -if not config.exists(base): - # Nothing to do - exit(0) - -def find_subnet_interface(subnet): - subnet_net = ip_network(subnet) - - def check_addr(if_path): - if config.exists(if_path + ['address']): - for addr in config.return_values(if_path + ['address']): - try: - if ip_network(addr, strict=False) == subnet_net: - return True - except: - pass # interface address was probably "dhcp" or other magic string - return None - - for iftype in config.list_nodes(['interfaces']): - for ifname in config.list_nodes(['interfaces', iftype]): - if_base = ['interfaces', iftype, ifname] - - if check_addr(if_base): - return ifname - - if config.exists(if_base + ['vif']): - for vif in config.list_nodes(if_base + ['vif']): - if check_addr(if_base + ['vif', vif]): - return f'{ifname}.{vif}' - - if config.exists(if_base + ['vif-s']): - for vifs in config.list_nodes(if_base + ['vif-s']): - if check_addr(if_base + ['vif-s', vifs]): - return f'{ifname}.{vifs}' - - if config.exists(if_base + ['vif-s', vifs, 'vif-c']): - for vifc in config.list_nodes(if_base + ['vif-s', vifs, 'vif-c']): - if check_addr(if_base + ['vif-s', vifs, 'vif-c', vifc]): - return f'{ifname}.{vifs}.{vifc}' - - return False - -for network in config.list_nodes(base): - if not config.exists(base + [network, 'subnet']): - continue - - for subnet in config.list_nodes(base + [network, 'subnet']): - subnet_interface = find_subnet_interface(subnet) - - if subnet_interface: - config.set(base + [network, 'subnet', subnet, 'interface'], value=subnet_interface) -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) +def migrate(config: ConfigTree) -> None: + if not config.exists(base): + # Nothing to do + return + + def find_subnet_interface(subnet): + subnet_net = ip_network(subnet) + + def check_addr(if_path): + if config.exists(if_path + ['address']): + for addr in config.return_values(if_path + ['address']): + try: + if ip_network(addr, strict=False) == subnet_net: + return True + except: + pass # interface address was probably "dhcp" or other magic string + return None + + for iftype in config.list_nodes(['interfaces']): + for ifname in config.list_nodes(['interfaces', iftype]): + if_base = ['interfaces', iftype, ifname] + + if check_addr(if_base): + return ifname + + if config.exists(if_base + ['vif']): + for vif in config.list_nodes(if_base + ['vif']): + if check_addr(if_base + ['vif', vif]): + return f'{ifname}.{vif}' + + if config.exists(if_base + ['vif-s']): + for vifs in config.list_nodes(if_base + ['vif-s']): + if check_addr(if_base + ['vif-s', vifs]): + return f'{ifname}.{vifs}' + + if config.exists(if_base + ['vif-s', vifs, 'vif-c']): + for vifc in config.list_nodes(if_base + ['vif-s', vifs, 'vif-c']): + if check_addr(if_base + ['vif-s', vifs, 'vif-c', vifc]): + return f'{ifname}.{vifs}.{vifc}' + + return False + + for network in config.list_nodes(base): + if not config.exists(base + [network, 'subnet']): + continue + + for subnet in config.list_nodes(base + [network, 'subnet']): + subnet_interface = find_subnet_interface(subnet) + + if subnet_interface: + config.set(base + [network, 'subnet', subnet, 'interface'], value=subnet_interface) |