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Diffstat (limited to 'src/conf_mode/ipsec-settings.py')
| -rwxr-xr-x | src/conf_mode/ipsec-settings.py | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/src/conf_mode/ipsec-settings.py b/src/conf_mode/ipsec-settings.py deleted file mode 100755 index a373f821f..000000000 --- a/src/conf_mode/ipsec-settings.py +++ /dev/null @@ -1,223 +0,0 @@ -#!/usr/bin/env python3 -# -# Copyright (C) 2018-2020 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/>. - -import re -import os - -from time import sleep -from sys import exit - -from vyos.config import Config -from vyos import ConfigError -from vyos.util import call -from vyos.template import render - -from vyos import airbag -airbag.enable() - -ra_conn_name = "remote-access" -ipsec_secrets_file = "/etc/ipsec.secrets" -ipsec_ra_conn_dir = "/etc/ipsec.d/tunnels/" -ipsec_ra_conn_file = ipsec_ra_conn_dir + ra_conn_name -ipsec_conf_file = "/etc/ipsec.conf" -ca_cert_path = "/etc/ipsec.d/cacerts" -server_cert_path = "/etc/ipsec.d/certs" -server_key_path = "/etc/ipsec.d/private" -delim_ipsec_l2tp_begin = "### VyOS L2TP VPN Begin ###" -delim_ipsec_l2tp_end = "### VyOS L2TP VPN End ###" -charon_pidfile = "/var/run/charon.pid" - -def get_config(config=None): - if config: - config = config - else: - config = Config() - - if config.exists("vpn ipsec ipsec-interfaces interface"): - data["ipsec_interfaces"] = config.return_values("vpn ipsec ipsec-interfaces interface") - - # Init config variables - data["delim_ipsec_l2tp_begin"] = delim_ipsec_l2tp_begin - data["delim_ipsec_l2tp_end"] = delim_ipsec_l2tp_end - data["ipsec_ra_conn_file"] = ipsec_ra_conn_file - data["ra_conn_name"] = ra_conn_name - # Get l2tp ipsec settings - data["ipsec_l2tp"] = False - conf_ipsec_command = "vpn l2tp remote-access ipsec-settings " #last space is useful - if config.exists(conf_ipsec_command): - data["ipsec_l2tp"] = True - - # Authentication params - if config.exists(conf_ipsec_command + "authentication mode"): - data["ipsec_l2tp_auth_mode"] = config.return_value(conf_ipsec_command + "authentication mode") - if config.exists(conf_ipsec_command + "authentication pre-shared-secret"): - data["ipsec_l2tp_secret"] = config.return_value(conf_ipsec_command + "authentication pre-shared-secret") - - # mode x509 - if config.exists(conf_ipsec_command + "authentication x509 ca-cert-file"): - data["ipsec_l2tp_x509_ca_cert_file"] = config.return_value(conf_ipsec_command + "authentication x509 ca-cert-file") - if config.exists(conf_ipsec_command + "authentication x509 crl-file"): - data["ipsec_l2tp_x509_crl_file"] = config.return_value(conf_ipsec_command + "authentication x509 crl-file") - if config.exists(conf_ipsec_command + "authentication x509 server-cert-file"): - data["ipsec_l2tp_x509_server_cert_file"] = config.return_value(conf_ipsec_command + "authentication x509 server-cert-file") - data["server_cert_file_copied"] = server_cert_path+"/"+re.search('\w+(?:\.\w+)*$', config.return_value(conf_ipsec_command + "authentication x509 server-cert-file")).group(0) - if config.exists(conf_ipsec_command + "authentication x509 server-key-file"): - data["ipsec_l2tp_x509_server_key_file"] = config.return_value(conf_ipsec_command + "authentication x509 server-key-file") - data["server_key_file_copied"] = server_key_path+"/"+re.search('\w+(?:\.\w+)*$', config.return_value(conf_ipsec_command + "authentication x509 server-key-file")).group(0) - if config.exists(conf_ipsec_command + "authentication x509 server-key-password"): - data["ipsec_l2tp_x509_server_key_password"] = config.return_value(conf_ipsec_command + "authentication x509 server-key-password") - - # Common l2tp ipsec params - if config.exists(conf_ipsec_command + "ike-lifetime"): - data["ipsec_l2tp_ike_lifetime"] = config.return_value(conf_ipsec_command + "ike-lifetime") - else: - data["ipsec_l2tp_ike_lifetime"] = "3600" - - if config.exists(conf_ipsec_command + "lifetime"): - data["ipsec_l2tp_lifetime"] = config.return_value(conf_ipsec_command + "lifetime") - else: - data["ipsec_l2tp_lifetime"] = "3600" - - if config.exists("vpn l2tp remote-access outside-address"): - data['outside_addr'] = config.return_value('vpn l2tp remote-access outside-address') - - return data - -def write_ipsec_secrets(c): - if c.get("ipsec_l2tp_auth_mode") == "pre-shared-secret": - secret_txt = "{0}\n{1} %any : PSK \"{2}\"\n{3}\n".format(delim_ipsec_l2tp_begin, c['outside_addr'], c['ipsec_l2tp_secret'], delim_ipsec_l2tp_end) - elif c.get("ipsec_l2tp_auth_mode") == "x509": - secret_txt = "{0}\n: RSA {1}\n{2}\n".format(delim_ipsec_l2tp_begin, c['server_key_file_copied'], delim_ipsec_l2tp_end) - - old_umask = os.umask(0o077) - with open(ipsec_secrets_file, 'a+') as f: - f.write(secret_txt) - os.umask(old_umask) - -def write_ipsec_conf(c): - ipsec_confg_txt = "{0}\ninclude {1}\n{2}\n".format(delim_ipsec_l2tp_begin, ipsec_ra_conn_file, delim_ipsec_l2tp_end) - - old_umask = os.umask(0o077) - with open(ipsec_conf_file, 'a+') as f: - f.write(ipsec_confg_txt) - os.umask(old_umask) - -### Remove config from file by delimiter -def remove_confs(delim_begin, delim_end, conf_file): - call("sed -i '/"+delim_begin+"/,/"+delim_end+"/d' "+conf_file) - - -### Checking certificate storage and notice if certificate not in /config directory -def check_cert_file_store(cert_name, file_path, dts_path): - if not re.search('^\/config\/.+', file_path): - print("Warning: \"" + file_path + "\" lies outside of /config/auth directory. It will not get preserved during image upgrade.") - #Checking file existence - if not os.path.isfile(file_path): - raise ConfigError("L2TP VPN configuration error: Invalid "+cert_name+" \""+file_path+"\"") - else: - ### Cpy file to /etc/ipsec.d/certs/ /etc/ipsec.d/cacerts/ - # todo make check - ret = call('cp -f '+file_path+' '+dts_path) - if ret: - raise ConfigError("L2TP VPN configuration error: Cannot copy "+file_path) - -def verify(data): - # l2tp ipsec check - if data["ipsec_l2tp"]: - # Checking dependecies for "authentication mode pre-shared-secret" - if data.get("ipsec_l2tp_auth_mode") == "pre-shared-secret": - if not data.get("ipsec_l2tp_secret"): - raise ConfigError("pre-shared-secret required") - if not data.get("outside_addr"): - raise ConfigError("outside-address not defined") - - # Checking dependecies for "authentication mode x509" - if data.get("ipsec_l2tp_auth_mode") == "x509": - if not data.get("ipsec_l2tp_x509_server_key_file"): - raise ConfigError("L2TP VPN configuration error: \"server-key-file\" not defined.") - else: - check_cert_file_store("server-key-file", data['ipsec_l2tp_x509_server_key_file'], server_key_path) - - if not data.get("ipsec_l2tp_x509_server_cert_file"): - raise ConfigError("L2TP VPN configuration error: \"server-cert-file\" not defined.") - else: - check_cert_file_store("server-cert-file", data['ipsec_l2tp_x509_server_cert_file'], server_cert_path) - - if not data.get("ipsec_l2tp_x509_ca_cert_file"): - raise ConfigError("L2TP VPN configuration error: \"ca-cert-file\" must be defined for X.509") - else: - check_cert_file_store("ca-cert-file", data['ipsec_l2tp_x509_ca_cert_file'], ca_cert_path) - - if not data.get('ipsec_interfaces'): - raise ConfigError("L2TP VPN configuration error: \"vpn ipsec ipsec-interfaces\" must be specified.") - -def generate(data): - if data["ipsec_l2tp"]: - remove_confs(delim_ipsec_l2tp_begin, delim_ipsec_l2tp_end, ipsec_secrets_file) - # old_umask = os.umask(0o077) - # render(ipsec_secrets_file, 'ipsec/ipsec.secrets.tmpl', data) - # os.umask(old_umask) - ## Use this method while IPSec CLI handler won't be overwritten to python - write_ipsec_secrets(data) - - old_umask = os.umask(0o077) - - # Create tunnels directory if does not exist - if not os.path.exists(ipsec_ra_conn_dir): - os.makedirs(ipsec_ra_conn_dir) - - render(ipsec_ra_conn_file, 'ipsec/remote-access.tmpl', data) - os.umask(old_umask) - - remove_confs(delim_ipsec_l2tp_begin, delim_ipsec_l2tp_end, ipsec_conf_file) - # old_umask = os.umask(0o077) - # render(ipsec_conf_file, 'ipsec/ipsec.conf.tmpl', data) - # os.umask(old_umask) - ## Use this method while IPSec CLI handler won't be overwritten to python - write_ipsec_conf(data) - - else: - if os.path.exists(ipsec_ra_conn_file): - remove_confs(delim_ipsec_l2tp_begin, delim_ipsec_l2tp_end, ipsec_ra_conn_file) - remove_confs(delim_ipsec_l2tp_begin, delim_ipsec_l2tp_end, ipsec_secrets_file) - remove_confs(delim_ipsec_l2tp_begin, delim_ipsec_l2tp_end, ipsec_conf_file) - -def restart_ipsec(): - call('ipsec restart >&/dev/null') - # counter for apply swanctl config - counter = 10 - while counter <= 10: - if os.path.exists(charon_pidfile): - call('swanctl -q >&/dev/null') - break - counter -=1 - sleep(1) - if counter == 0: - raise ConfigError('VPN configuration error: IPSec is not running.') - -def apply(data): - # Restart IPSec daemon - restart_ipsec() - -if __name__ == '__main__': - try: - c = get_config() - verify(c) - generate(c) - apply(c) - except ConfigError as e: - print(e) - exit(1) |