/**
* Creates a RadiusProxyConnection object.
* @param radiusServer server endpoint
* @param radiusClient client endpoint
* @param port port the proxied packet arrived at originally
*/
public RadiusProxyConnection(RadiusEndpoint radiusServer, RadiusEndpoint radiusClient, RadiusPacket packet,
int port)
{
RadiusServer = radiusServer;
RadiusClient = radiusClient;
Packet = packet;
Port = port;
}
public override RadiusEndpoint GetProxyServer(RadiusPacket packet,
RadiusEndpoint client)
{
// always proxy
try
{
IPAddress address = IPAddress.Parse("127.0. 0. 1 ");
int port = 10000;
if (typeof (AccountingRequest).IsInstanceOfType(packet))
port = 10001;
return new RadiusEndpoint(new IPEndPoint(address, port), "testing123");
}
catch
{
return null;
}
}
/**
* Handles packets coming in on the Proxy port. Decides whether
* packets coming in on Auth/Acct ports should be proxied.
*/
protected override RadiusPacket HandlePacket(IPEndPoint localAddress, IPEndPoint remoteAddress,
RadiusPacket request, String sharedSecret)
{
// handle incoming Proxy packet
if (localAddress.Port == ProxyPort)
{
proxyPacketReceived(request, remoteAddress);
return null;
}
// handle auth/acct packet
var radiusClient = new RadiusEndpoint(remoteAddress, sharedSecret);
RadiusEndpoint radiusServer = GetProxyServer(request, radiusClient);
if (radiusServer != null)
{
// Proxy incoming packet to other radius server
var proxyConnection = new RadiusProxyConnection(radiusServer, radiusClient, request,
localAddress.Port);
logger.Info("Proxy packet to " + proxyConnection);
proxyPacket(request, proxyConnection);
return null;
}
else
// normal processing
return base.HandlePacket(localAddress, remoteAddress, request, sharedSecret);
}
/** * This method must be implemented to return a RadiusEndpoint * if the given packet is to be proxied. The endpoint represents the * Radius server the packet should be proxied to. * @param packet the packet in question * @param client the client endpoint the packet originated from * (containing the address, port number and shared secret) * @return a RadiusEndpoint or null if the packet should not be * proxied */ public abstract RadiusEndpoint GetProxyServer(RadiusPacket packet, RadiusEndpoint client);
/**
* Sends the specified packet to the specified Radius server endpoint.
* @param remoteServer Radius endpoint consisting of server address,
* port number and shared secret
* @param request Radius packet to be sent
* @return received response packet
* @throws RadiusException malformed packet
* @throws IOException error while communication
*/
public static RadiusPacket Communicate(RadiusEndpoint remoteServer, RadiusPacket request)
{
var rc = new RadiusClient(remoteServer.EndpointAddress.Address, remoteServer.SharedSecret);
return rc.Communicate(request, remoteServer.EndpointAddress.Port);
}
/**
* Sends the specified packet to the specified Radius server endpoint.
* @param remoteServer Radius endpoint consisting of server address,
* port number and shared secret
* @param request Radius packet to be sent
* @return received response packet
* @throws RadiusException malformed packet
* @throws IOException error while communication
*/
public static RadiusPacket Communicate(RadiusEndpoint remoteServer, RadiusPacket request)
{
var rc = new RadiusClient(remoteServer.EndpointAddress.Address, remoteServer.SharedSecret);
return(rc.Communicate(request, remoteServer.EndpointAddress.Port));
}
