csu3_am335x/EVSE/GPL/openvpn-2.4.9/sample/sample-plugins/keying-material-exporter-demo

OpenVPN plugin examples. Daniel Kubec

Examples provided:

keyingmaterialexporter.c -- Example based on TLS Keying Material Exporters over HTTP [RFC-5705]
(openvpn/doc/keying-material-exporter.txt)

This example demonstrates authenticating a user over HTTP who have already
established an OpenVPN connecting using the --keying-material-exporter
feature.

Requires:
OpenVPN RFC-5705 Support, OpenSSL >= 1.0.1

Files:
http-server.py -- Example HTTP Server listen 0.0.0.0:8080
http-client.py -- Example HTTP Client connect 10.8.0.1:8080 [GET /$SESSIONID]

server.ovpn -- Example HTTP SSO VPN Server configuration
client.ovpn -- Example HTTP SSO VPN Client configuration

keyingmaterialexporter.c,
keyingmaterialexporter.so -- Example OpenVPN Client and Server plugin

To build:
./build keyingmaterialexporter

To use in OpenVPN:

Enter openvpn/sample/sample-plugins/keyingmaterialexporter directory
and in separate terminals, start these four processes:

$ openvpn --config ./server.ovpn
$ openvpn --config ./client.ovpn
$ ./http-server.py
$ ./http-client.py

Test:

openvpn --config ./server.ovpn
##############################

PLUGIN SSO: app session created
PLUGIN_CALL: POST ./keyingmaterialexporter.so/PLUGIN_TLS_VERIFY status=0
PLUGIN SSO: app session key: a5885abc84d361803f58ede1ef9c0adf99e720cd
PLUGIN SSO: app session file: /tmp/openvpn_sso_a5885abc84d361803f58ede1ef9c0adf99e720cd
PLUGIN SSO: app session user: Test-Client

openvpn --config ./client.ovpn
##############################
PLUGIN SSO: app session created
PLUGIN_CALL: POST ./keyingmaterialexporter.so/PLUGIN_TLS_VERIFY status=0
PLUGIN SSO: app session key: a5885abc84d361803f58ede1ef9c0adf99e720cd
PLUGIN SSO: app session file: /tmp/openvpn_sso_user
PLUGIN_CALL: POST ./keyingmaterialexporter.so/PLUGIN_TLS_FINAL status=0

HTTP_SERVER:
http-server.py
################
http server started
session file: /tmp/openvpn_sso_a5885abc84d361803f58ede1ef9c0adf99e720cd
10.8.0.1 - - [02/Apr/2015 15:03:33] "GET /a5885abc84d361803f58ede1ef9c0adf99e720cd HTTP/1.1" 200 -
session user: Test-Client
session key: a5885abc84d361803f58ede1ef9c0adf99e720cd

HTTP_SERVER:
http-client.py

Greetings Test-Client. You are authorized