#!/usr/bin/env python3 # # Copyright (C) 2021 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/>. # - remove primary/secondary identifier from nameserver # - TODO: remove radius server req-limit import os from sys import argv from sys import exit from vyos.configtree import ConfigTree from vyos.pki import load_certificate from vyos.pki import load_crl from vyos.pki import load_private_key from vyos.pki import encode_certificate from vyos.pki import encode_private_key from vyos.util import run 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) base = ['vpn', 'l2tp', 'remote-access', 'ipsec-settings'] pki_base = ['pki'] if not config.exists(base): exit(0) AUTH_DIR = '/config/auth' def wrapped_pem_to_config_value(pem): return "".join(pem.strip().split("\n")[1:-1]) if not config.exists(base + ['authentication', 'x509']): exit(0) x509_base = base + ['authentication', 'x509'] pki_name = 'l2tp_remote_access' if not config.exists(pki_base + ['ca']): config.set(pki_base + ['ca']) config.set_tag(pki_base + ['ca']) if not config.exists(pki_base + ['certificate']): config.set(pki_base + ['certificate']) config.set_tag(pki_base + ['certificate']) if config.exists(x509_base + ['ca-cert-file']): cert_file = config.return_value(x509_base + ['ca-cert-file']) cert_path = os.path.join(AUTH_DIR, cert_file) cert = None if os.path.isfile(cert_path): if not os.access(cert_path, os.R_OK): run(f'sudo chmod 644 {cert_path}') with open(cert_path, 'r') as f: cert_data = f.read() cert = load_certificate(cert_data, wrap_tags=False) if cert: cert_pem = encode_certificate(cert) config.set(pki_base + ['ca', pki_name, 'certificate'], value=wrapped_pem_to_config_value(cert_pem)) config.set(x509_base + ['ca-certificate'], value=pki_name) else: print(f'Failed to migrate CA certificate on l2tp remote-access config') config.delete(x509_base + ['ca-cert-file']) if config.exists(x509_base + ['crl-file']): crl_file = config.return_value(x509_base + ['crl-file']) crl_path = os.path.join(AUTH_DIR, crl_file) crl = None if os.path.isfile(crl_path): if not os.access(crl_path, os.R_OK): run(f'sudo chmod 644 {crl_path}') with open(crl_path, 'r') as f: crl_data = f.read() crl = load_certificate(crl_data, wrap_tags=False) if crl: crl_pem = encode_certificate(crl) config.set(pki_base + ['ca', pki_name, 'crl'], value=wrapped_pem_to_config_value(crl_pem)) else: print(f'Failed to migrate CRL on l2tp remote-access config') config.delete(x509_base + ['crl-file']) if config.exists(x509_base + ['server-cert-file']): cert_file = config.return_value(x509_base + ['server-cert-file']) cert_path = os.path.join(AUTH_DIR, cert_file) cert = None if os.path.isfile(cert_path): if not os.access(cert_path, os.R_OK): run(f'sudo chmod 644 {cert_path}') with open(cert_path, 'r') as f: cert_data = f.read() cert = load_certificate(cert_data, wrap_tags=False) if cert: cert_pem = encode_certificate(cert) config.set(pki_base + ['certificate', pki_name, 'certificate'], value=wrapped_pem_to_config_value(cert_pem)) config.set(x509_base + ['certificate'], value=pki_name) else: print(f'Failed to migrate certificate on l2tp remote-access config') config.delete(x509_base + ['server-cert-file']) if config.exists(x509_base + ['server-key-file']): key_file = config.return_value(x509_base + ['server-key-file']) key_passphrase = None if config.exists(x509_base + ['server-key-password']): key_passphrase = config.return_value(x509_base + ['server-key-password']) key_path = os.path.join(AUTH_DIR, key_file) key = None if os.path.isfile(key_path): if not os.access(key_path, os.R_OK): run(f'sudo chmod 644 {key_path}') with open(key_path, 'r') as f: key_data = f.read() key = load_private_key(key_data, passphrase=key_passphrase, wrap_tags=False) if key: key_pem = encode_private_key(key, passphrase=key_passphrase) config.set(pki_base + ['certificate', pki_name, 'private', 'key'], value=wrapped_pem_to_config_value(key_pem)) if key_passphrase: config.set(pki_base + ['certificate', pki_name, 'private', 'password-protected']) config.set(x509_base + ['private-key-passphrase'], value=key_passphrase) else: print(f'Failed to migrate private key on l2tp remote-access config') config.delete(x509_base + ['server-key-file']) if config.exists(x509_base + ['server-key-password']): config.delete(x509_base + ['server-key-password']) 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)