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#!/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 <http://www.gnu.org/licenses/>.
# - rename 'dhcpv6-options prefix-delegation' from single node to a new tag node
# 'dhcpv6-options pd 0'
# - delete 'sla-len' from CLI - value is calculated on demand
from sys import exit, argv
from vyos.configtree import ConfigTree
if __name__ == '__main__':
if (len(argv) < 1):
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)
for type in config.list_nodes(['interfaces']):
for interface in config.list_nodes(['interfaces', type]):
# cache current config tree
base_path = ['interfaces', type, interface, 'dhcpv6-options']
old_base = base_path + ['prefix-delegation']
new_base = base_path + ['pd']
if config.exists(old_base):
config.set(new_base)
config.set_tag(new_base)
config.copy(old_base, new_base + ['0'])
config.delete(old_base)
for pd in config.list_nodes(new_base):
for tmp in config.list_nodes(new_base + [pd, 'interface']):
sla_config = new_base + [pd, 'interface', tmp, 'sla-len']
if config.exists(sla_config):
config.delete(sla_config)
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)

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11-to-12 (2 KB)

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