From 7d31eae269650ae3767ab1736d14e9f3d6867a67 Mon Sep 17 00:00:00 2001 From: Christian Poessinger Date: Tue, 24 Mar 2020 18:25:21 +0100 Subject: router-advert: T1831: add config migration script --- src/migration-scripts/interfaces/5-to-6 | 111 ++++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100755 src/migration-scripts/interfaces/5-to-6 (limited to 'src/migration-scripts/interfaces/5-to-6') diff --git a/src/migration-scripts/interfaces/5-to-6 b/src/migration-scripts/interfaces/5-to-6 new file mode 100755 index 000000000..9dbfd30e1 --- /dev/null +++ b/src/migration-scripts/interfaces/5-to-6 @@ -0,0 +1,111 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2020 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 . + +# Migrate IPv6 router advertisments from a nested interface configuration to +# a denested "service router-advert" + +import sys +from vyos.configtree import ConfigTree + +def copy_rtradv(c, old_base, interface): + base = ['service', 'router-advert', 'interface'] + + if c.exists(old_base): + if not c.exists(base): + c.set(base) + c.set_tag(base) + + # take the old node as a whole and copy it to new new path, + # additional migrations will be done afterwards + new_base = base + [interface] + c.copy(old_base, new_base) + c.delete(old_base) + + # cur-hop-limit has been renamed to hop-limit + if c.exists(new_base + ['cur-hop-limit']): + c.rename(new_base + ['cur-hop-limit'], 'hop-limit') + + bool_cleanup = ['managed-flag', 'other-config-flag'] + for bool in bool_cleanup: + if c.exists(new_base + [bool]): + tmp = c.return_value(new_base + [bool]) + c.delete(new_base + [bool]) + if tmp == 'true': + c.set(new_base + [bool]) + + # max/min interval moved to subnode + intervals = ['max-interval', 'min-interval'] + for interval in intervals: + if c.exists(new_base + [interval]): + tmp = c.return_value(new_base + [interval]) + c.delete(new_base + [interval]) + min_max = interval.split('-')[0] + c.set(new_base + ['interval', min_max], value=tmp) + + # cleanup boolean nodes in individual prefix + prefix_base = new_base + ['prefix'] + if c.exists(prefix_base): + for prefix in config.list_nodes(prefix_base): + bool_cleanup = ['autonomous-flag', 'on-link-flag'] + for bool in bool_cleanup: + if c.exists(prefix_base + [prefix, bool]): + tmp = c.return_value(prefix_base + [prefix, bool]) + c.delete(prefix_base + [prefix, bool]) + if tmp == 'true': + c.set(prefix_base + [prefix, bool]) + + # router advertisement can be individually disabled per interface + # the node has been renamed from send-advert {true | false} to no-send-advert + if c.exists(new_base + ['send-advert']): + tmp = c.return_value(new_base + ['send-advert']) + c.delete(new_base + ['send-advert']) + if tmp == 'false': + c.set(new_base + ['no-send-advert']) + +if __name__ == '__main__': + if (len(sys.argv) < 1): + print("Must specify file name!") + exit(1) + + file_name = sys.argv[1] + with open(file_name, 'r') as f: + config_file = f.read() + + config = ConfigTree(config_file) + + # list all individual interface types like dummy, ethernet and so on + for if_type in config.list_nodes(['interfaces']): + base_if_type = ['interfaces', if_type] + + # for every individual interface we need to check if there is an + # ipv6 ra configured ... and also for every VIF (VLAN) interface + for intf in config.list_nodes(base_if_type): + old_base = base_if_type + [intf, 'ipv6', 'router-advert'] + copy_rtradv(config, old_base, intf) + + vif_base = base_if_type + [intf, 'vif'] + if config.exists(vif_base): + for vif in config.list_nodes(vif_base): + old_base = vif_base + [vif, 'ipv6', 'router-advert'] + vlan_name = f'{intf}.{vif}' + copy_rtradv(config, old_base, vlan_name) + + 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)) + sys.exit(1) -- cgit v1.2.3