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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/>.
# - migrate from "service sstp-server" to "vpn sstp"
# - remove primary/secondary identifier from nameserver
# - migrate RADIUS configuration to a more uniform syntax accross the system
# - authentication radius-server x.x.x.x to authentication radius server x.x.x.x
# - authentication radius-settings to authentication radius
# - do not migrate radius server req-limit, use default of unlimited
# - migrate SSL certificate path
import os
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)
old_base = ['service', 'sstp-server']
if not config.exists(old_base):
# Nothing to do
sys.exit(0)
else:
# ensure new base path exists
if not config.exists(['vpn']):
config.set(['vpn'])
new_base = ['vpn', 'sstp']
# copy entire tree
config.copy(old_base, new_base)
config.delete(old_base)
# migrate DNS servers
dns_base = new_base + ['network-settings', 'dns-server']
if config.exists(dns_base):
if config.exists(dns_base + ['primary-dns']):
dns = config.return_value(dns_base + ['primary-dns'])
config.set(new_base + ['network-settings', 'name-server'], value=dns, replace=False)
if config.exists(dns_base + ['secondary-dns']):
dns = config.return_value(dns_base + ['secondary-dns'])
config.set(new_base + ['network-settings', 'name-server'], value=dns, replace=False)
config.delete(dns_base)
# migrate radius options - copy subtree
# thus must happen before migration of the individual RADIUS servers
old_options = new_base + ['authentication', 'radius-settings']
if config.exists(old_options):
new_options = new_base + ['authentication', 'radius']
config.copy(old_options, new_options)
config.delete(old_options)
# migrate radius dynamic author / change of authorisation server
dae_old = new_base + ['authentication', 'radius', 'dae-server']
if config.exists(dae_old):
config.rename(dae_old, 'dynamic-author')
dae_new = new_base + ['authentication', 'radius', 'dynamic-author']
if config.exists(dae_new + ['ip-address']):
config.rename(dae_new + ['ip-address'], 'server')
if config.exists(dae_new + ['secret']):
config.rename(dae_new + ['secret'], 'key')
# migrate radius server
radius_server = new_base + ['authentication', 'radius-server']
if config.exists(radius_server):
for server in config.list_nodes(radius_server):
base = radius_server + [server]
new = new_base + ['authentication', 'radius', 'server', server]
# convert secret to key
if config.exists(base + ['secret']):
tmp = config.return_value(base + ['secret'])
config.set(new + ['key'], value=tmp)
if config.exists(base + ['fail-time']):
tmp = config.return_value(base + ['fail-time'])
config.set(new + ['fail-time'], value=tmp)
config.set_tag(new_base + ['authentication', 'radius', 'server'])
config.delete(radius_server)
# migrate SSL certificates
old_ssl = new_base + ['sstp-settings']
new_ssl = new_base + ['ssl']
config.copy(old_ssl + ['ssl-certs'], new_ssl)
config.delete(old_ssl)
if config.exists(new_ssl + ['ca']):
config.rename(new_ssl + ['ca'], 'ca-cert-file')
if config.exists(new_ssl + ['server-cert']):
config.rename(new_ssl + ['server-cert'], 'cert-file')
if config.exists(new_ssl + ['server-key']):
config.rename(new_ssl + ['server-key'], 'key-file')
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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