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#!/usr/bin/env python3
# Unclutter L2TP VPN configuiration - move radius-server top level tag
# nodes to a regular node which now also configures the radius source address
# used when querying a radius server
import sys
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()
config = ConfigTree(config_file)
cfg_base = ['vpn', 'l2tp', 'remote-access', 'authentication']
if not config.exists(cfg_base):
# Nothing to do
sys.exit(0)
else:
# Migrate "vpn l2tp authentication radius-source-address" to new
# "vpn l2tp authentication radius source-address"
if config.exists(cfg_base + ['radius-source-address']):
address = config.return_value(cfg_base + ['radius-source-address'])
# delete old configuration node
config.delete(cfg_base + ['radius-source-address'])
# write new configuration node
config.set(cfg_base + ['radius', 'source-address'], value=address)
# Migrate "vpn l2tp authentication radius-server" tag node to new
# "vpn l2tp authentication radius server" tag node
if config.exists(cfg_base + ['radius-server']):
for server in config.list_nodes(cfg_base + ['radius-server']):
base_server = cfg_base + ['radius-server', server]
key = config.return_value(base_server + ['key'])
# delete old configuration node
config.delete(base_server)
# write new configuration node
config.set(cfg_base + ['radius', 'server', server, 'key'], value=key)
# format as tag node
config.set_tag(cfg_base + ['radius', 'server'])
# delete top level tag node
if config.exists(cfg_base + ['radius-server']):
config.delete(cfg_base + ['radius-server'])
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)

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