/**
* 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));
}
}
/**
* Proxies the given packet to the server given in the Proxy connection.
* Stores the Proxy connection object in the cache with a key that
* is added to the packet in the "Proxy-State" attribute.
* @param packet the packet to Proxy
* @param proxyCon the RadiusProxyConnection for this packet
* @throws IOException
*/
protected void proxyPacket(RadiusPacket packet, RadiusProxyConnection proxyConnection)
{
lock (typeof(RadiusProxy))
{
// add Proxy-State attribute
proxyIndex++;
String proxyIndexStr = proxyIndex.ToString();
packet.AddAttribute(new RadiusAttribute(33, Encoding.UTF8.GetBytes(proxyIndexStr)));
// store RadiusProxyConnection object
proxyConnections.Add(proxyIndexStr, proxyConnection);
}
// get server address
//IPAddress serverAddress = proxyConnection.getRadiusServer().EndpointAddress.Address;
//int serverPort = proxyConnection.getRadiusServer().EndpointAddress.Port;
String serverSecret = proxyConnection.RadiusServer.SharedSecret;
// save request authenticator (will be calculated new)
byte[] auth = packet.Authenticator;
// encode new packet (with new authenticator)
var bos = new MemoryStream();
packet.EncodeRequestPacket(bos, serverSecret);
byte[] data = bos.ToArray();
bos.Dispose();
//var datagram = new DatagramPacket(data, data.Length, serverAddress, serverPort);
// restore original authenticator
packet.Authenticator = auth;
// send packet
//Socket proxySocket = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.IP);
proxySocket.Send(data, data.Length);
//proxySocket.send(datagram);
}
/**
* Proxies the given packet to the server given in the Proxy connection.
* Stores the Proxy connection object in the cache with a key that
* is added to the packet in the "Proxy-State" attribute.
* @param packet the packet to Proxy
* @param proxyCon the RadiusProxyConnection for this packet
* @throws IOException
*/
protected void proxyPacket(RadiusPacket packet, RadiusProxyConnection proxyConnection)
{
lock (typeof (RadiusProxy))
{
// add Proxy-State attribute
proxyIndex++;
String proxyIndexStr = proxyIndex.ToString();
packet.AddAttribute(new RadiusAttribute(33, Encoding.UTF8.GetBytes(proxyIndexStr)));
// store RadiusProxyConnection object
proxyConnections.Add(proxyIndexStr, proxyConnection);
}
// get server address
//IPAddress serverAddress = proxyConnection.getRadiusServer().EndpointAddress.Address;
//int serverPort = proxyConnection.getRadiusServer().EndpointAddress.Port;
String serverSecret = proxyConnection.RadiusServer.SharedSecret;
// save request authenticator (will be calculated new)
byte[] auth = packet.Authenticator;
// encode new packet (with new authenticator)
var bos = new MemoryStream();
packet.EncodeRequestPacket(bos, serverSecret);
byte[] data = bos.ToArray();
bos.Dispose();
//var datagram = new DatagramPacket(data, data.Length, serverAddress, serverPort);
// restore original authenticator
packet.Authenticator = auth;
// send packet
//Socket proxySocket = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.IP);
proxySocket.Send(data, data.Length);
//proxySocket.send(datagram);
}
/**
* 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);
}
