strongTNC

strongTNC is a Trusted Network Connect (TNC) extension for the strongSwan VPN solution. It allows the definition and enforcement of TNC policies that apply to all VPN clients and must be fulfilled with each connection attempt.

Development Setup

strongTNC uses Django (currently version 3.2.13) requiring Python 3. It is recommended to use the pip and virtualenv tools to ease the dependency management. They can be installed via your package manager on most Linux distributions.

If you're new to these tools: Pip is the de-facto Python package manager (similar to apt-get or yum). And virtualenv is a tool that allows you to have multiple Python installations side-by-side, inside a directory. A quickstart guide can be found here.

Non-Python Dependencies

You need to install the following packages in order to be able to build all the needed Python dependencies:

• python headers (Debian: python-dev)
• libxml (Debian: libxml2-dev)
• libxslt (Debian: libxslt-dev)

Environment, Dependencies

First, create a virtualenv:

cd /path/to/strongTNC/
virtualenv --no-site-packages VIRTUAL
source VIRTUAL/bin/activate

Then install the dependencies:

pip install -r requirements.txt

Configuration

Create a local settings.ini file:

cp config/settings.sample.ini config/settings.ini
$EDITOR config/settings.ini

If this is not a production setup, change the DEBUG setting in settings.ini from 0 to 1.

Create the databases:

./manage.py migrate --database meta
./manage.py migrate

Set the default passwords:

./manage.py setpassword

If you want to use the Django-Admin view (/admin), create a superuser account:

./manage.py createsuperuser --database meta

In case you want to change the password of a user:

./manage.py changepassword admin-user --database meta

Development

Now you can start the development server.

./manage.py runserver

The web interface should be available on http://localhost:8000/.

Debugging

If you want to use the django debug toolbar, install it via pip:

pip install django-debug-toolbar

Then start the server with the setting [debug] DEBUG_TOOLBAR = 1 (in settings.ini).

To print all executed SQL queries to stdout, start the server with the setting [debug] SQL_DEBUG = 1 (in settings.ini).

Testing

Install pytest & dependencies:

pip install -r requirements-tests.txt

Run the tests:

./runtests.py

Run a specific test file:

./runtests.py tests/<filename>

Run only tests matching a specific pattern:

./runtests.py -k <pattern>

Run only tests that failed the last time:

./runtests.py --lf

Run tests without coverage:

./runtests.py --no-cov

XMPP-Grid Publishing Interface

strongTNC can publish real-time information on new SWID tags:

Published item strongswan.org__Debian_7.11-armv7l-smbclient-2~3.6.6-6~deb7u15 to sacm/swidtags:
{
  "tagId": "Debian_7.11-armv7l-smbclient-2~3.6.6-6~deb7u15",
  "versionStr": "2:3.6.6-6+deb7u15",
  "packageName": "smbclient",
  "uri": "https://tnc.strongswan.org/api/swid-tags/10550/"
}

and push create (action: 1) or remove (action: 2) SWIMA events received from endpoints:

Published item 270aea08-d972-478c-b414-23abb0e82f1d332 to sacm/events:
{
  "device": {
    "description": "Raspi 3",
    "value": "565feb9e8462870dba884ce540a0768d68829873"
  },
  "action": 1,
  "tag": {
    "recordId": 1413,
    "sourceId": 1,
    "softwareId": "strongswan.org__Debian_7.11-armv7l-smbclient-2~3.6.6-6~deb7u15"
  },
  "event": {
    "timestamp": "2017-11-22T15:04:35Z",
    "epoch": "1594045818",
    "eid": "82"
  }
}

in JSON format to an XMPP-Grid by setting [xmpp] USE_XMPP = 1 and configuring various parameters (in settings.ini). Here is an example configuration:

[xmpp]
USE_XMPP = 1
jid: [email protected]
password: <password>
pubsub_server: pubsub.strongswan.org
cacert: /etc/swanctl/x509ca/strongswanCaCert.pem
use_ipv6: 0
node_events: sacm/events
node_swidtags: sacm/swidtags
rest_uri: https://tnc.strongswan.org

License

Copyright (C) 2013 Marco Tanner, Stefan Rohner
Copyright (C) 2014 Christian Fässler, Danilo Bargen, Jonas Furrer
Copyright (C) 2013-2019 Tobias Brunner
Copyright (C) 2013-2020 Andreas Steffen
HSR University of Applied Sciences Rapperswil

Copyright (C) 2021-2022 Andreas Steffen, strongSec GmbH
Copyright (C) 2021 Tobias Brunner, codelabs GmbH

This file is part of strongTNC.  strongTNC is free software: you can
redistribute it and/or modify it under the terms of the GNU Affero General
Public License as published by the Free Software Foundation, either version
3 of the License, or (at your option) any later version.

strongTNC 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 Affero General Public License for
more details.

You should have received a copy of the GNU Affero General Public License
along with strongTNC.  If not, see <http://www.gnu.org/licenses/>.

TLDR: This project is distributed under the AGPLv3, see LICENSE file.