diff options
| -rw-r--r-- | interface-definitions/https.xml | 24 | ||||
| -rw-r--r-- | python/vyos/defaults.py | 7 | ||||
| -rwxr-xr-x | src/conf_mode/https.py | 9 | ||||
| -rwxr-xr-x | src/conf_mode/vyos_cert.py | 143 |
4 files changed, 183 insertions, 0 deletions
diff --git a/interface-definitions/https.xml b/interface-definitions/https.xml index 828de449c..13d5c43ea 100644 --- a/interface-definitions/https.xml +++ b/interface-definitions/https.xml @@ -27,6 +27,30 @@ </constraint> </properties> </leafNode> + <node name="certificates"> + <properties> + <help>TLS certificates</help> + </properties> + <children> + <node name="system-generated-certificate" owner="${vyos_conf_scripts_dir}/vyos_cert.py"> + <properties> + <help>Use an automatically generated self-signed certificate</help> + <valueless/> + </properties> + <children> + <leafNode name="lifetime"> + <properties> + <help>Lifetime in days; default is 365</help> + <valueHelp> + <format>1-65535</format> + <description>Number of days</description> + </valueHelp> + </properties> + </leafNode> + </children> + </node> + </children> + </node> <node name="api" owner="${vyos_conf_scripts_dir}/http-api.py"> <properties> <help>VyOS HTTP API configuration</help> diff --git a/python/vyos/defaults.py b/python/vyos/defaults.py index ee307cf15..3e4c02562 100644 --- a/python/vyos/defaults.py +++ b/python/vyos/defaults.py @@ -39,3 +39,10 @@ api_data = { 'debug' : 'false', 'api_keys' : [ {"id": "testapp", "key": "qwerty"} ] } + +vyos_cert_data = { + "conf": "/etc/nginx/snippets/vyos-cert.conf", + "crt": "/etc/ssl/certs/vyos-selfsigned.crt", + "key": "/etc/ssl/private/vyos-selfsign", + "lifetime": "365", +} diff --git a/src/conf_mode/https.py b/src/conf_mode/https.py index 2495cf7e7..289eacf69 100755 --- a/src/conf_mode/https.py +++ b/src/conf_mode/https.py @@ -46,11 +46,16 @@ server { # listen 443 ssl default_server; listen [::]:443 ssl default_server; + +{% if vyos_cert %} + include {{ vyos_cert.conf }}; +{% else %} # # Self signed certs generated by the ssl-cert package # Don't use them in a production server! # include snippets/snakeoil.conf; +{% endif %} {% for l_addr in listen_address %} server_name {{ l_addr }}; @@ -88,6 +93,10 @@ def get_config(): addrs = conf.return_values('listen-address') https['listen_address'] = addrs[:] + if conf.exists('certificates'): + if conf.exists('certificates system-generated-certificate'): + https['vyos_cert'] = vyos.defaults.vyos_cert_data + if conf.exists('api'): https['api'] = vyos.defaults.api_data diff --git a/src/conf_mode/vyos_cert.py b/src/conf_mode/vyos_cert.py new file mode 100755 index 000000000..4a44573ca --- /dev/null +++ b/src/conf_mode/vyos_cert.py @@ -0,0 +1,143 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2019 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 sys +import os +import subprocess +import tempfile +import pathlib +import ssl + +import vyos.defaults +from vyos.config import Config +from vyos import ConfigError + +vyos_conf_scripts_dir = vyos.defaults.directories['conf_mode'] + +# XXX: this model will need to be extended for tag nodes +dependencies = [ + 'https.py', +] + +def status_self_signed(cert_data): +# check existence and expiration date + path = pathlib.Path(cert_data['conf']) + if not path.is_file(): + return False + path = pathlib.Path(cert_data['crt']) + if not path.is_file(): + return False + path = pathlib.Path(cert_data['key']) + if not path.is_file(): + return False + + # check if certificate is 1/2 past lifetime, with openssl -checkend + end_days = int(cert_data['lifetime']) + end_seconds = int(0.5*60*60*24*end_days) + checkend_cmd = ('openssl x509 -checkend {end} -noout -in {crt}' + ''.format(end=end_seconds, **cert_data)) + try: + subprocess.check_call(checkend_cmd, shell=True) + return True + except subprocess.CalledProcessError as err: + if err.returncode == 1: + return False + else: + print("Called process error: {}.".format(err)) + +def generate_self_signed(cert_data): + san_config = None + + if ssl.OPENSSL_VERSION_INFO < (1, 1, 1, 0, 0): + san_config = tempfile.NamedTemporaryFile() + with open(san_config.name, 'w') as fd: + fd.write('[req]\n') + fd.write('distinguished_name=req\n') + fd.write('[san]\n') + fd.write('subjectAltName=DNS:vyos\n') + + openssl_req_cmd = ('openssl req -x509 -nodes -days {lifetime} ' + '-newkey rsa:4096 -keyout {key} -out {crt} ' + '-subj "/O=Sentrium/OU=VyOS/CN=vyos" ' + '-extensions san -config {san_conf}' + ''.format(san_conf=san_config.name, + **cert_data)) + + else: + openssl_req_cmd = ('openssl req -x509 -nodes -days {lifetime} ' + '-newkey rsa:4096 -keyout {key} -out {crt} ' + '-subj "/O=Sentrium/OU=VyOS/CN=vyos" ' + '-addext "subjectAltName=DNS:vyos"' + ''.format(**cert_data)) + + try: + subprocess.check_call(openssl_req_cmd, shell=True) + except subprocess.CalledProcessError as err: + print("Called process error: {}.".format(err)) + + os.chmod('{key}'.format(**cert_data), 0o400) + + with open('{conf}'.format(**cert_data), 'w') as f: + f.write('ssl_certificate {crt};\n'.format(**cert_data)) + f.write('ssl_certificate_key {key};\n'.format(**cert_data)) + + if san_config: + san_config.close() + +def get_config(): + vyos_cert = vyos.defaults.vyos_cert_data + + conf = Config() + if not conf.exists('service https certificates system-generated-certificate'): + return None + else: + conf.set_level('service https certificates system-generated-certificate') + + if conf.exists('lifetime'): + lifetime = conf.return_value('lifetime') + vyos_cert['lifetime'] = lifetime + + return vyos_cert + +def verify(vyos_cert): + return None + +def generate(vyos_cert): + if vyos_cert is None: + return None + + if not status_self_signed(vyos_cert): + generate_self_signed(vyos_cert) + +def apply(vyos_cert): + for dep in dependencies: + cmd = '{0}/{1}'.format(vyos_conf_scripts_dir, dep) + try: + subprocess.check_call(cmd, shell=True) + except subprocess.CalledProcessError as err: + raise ConfigError("{}.".format(err)) + +if __name__ == '__main__': + try: + c = get_config() + verify(c) + generate(c) + apply(c) + except ConfigError as e: + print(e) + sys.exit(1) |