public static HandshakeMessage ReadMessage (TlsContext context, HandshakeType handshakeType, TlsBuffer incoming)
{
HandshakeMessage message;
switch (handshakeType) {
case HandshakeType.HelloRequest:
message = new TlsHelloRequest ();
break;
case HandshakeType.ServerHello:
return new TlsServerHello (context, incoming);
case HandshakeType.Certificate:
return new TlsCertificate (incoming);
case HandshakeType.ServerHelloDone:
message = new TlsServerHelloDone ();
break;
case HandshakeType.Finished:
return new TlsFinished (incoming);
case HandshakeType.ClientHello:
return new TlsClientHello (context, incoming);
case HandshakeType.ClientKeyExchange:
return new TlsClientKeyExchange (context, incoming);
case HandshakeType.CertificateRequest:
return new TlsCertificateRequest (context.NegotiatedProtocol, incoming);
case HandshakeType.CertificateVerify:
return new TlsCertificateVerify (context.NegotiatedProtocol, incoming);
case HandshakeType.ServerKeyExchange:
return new TlsServerKeyExchange (context, incoming);
default:
throw new TlsException (AlertDescription.UnexpectedMessage, "Unknown server handshake message received: {0}", handshakeType);
}
message.Read (incoming);
return message;
}
public int EncryptMessage(ref MSI.IBufferOffsetSize incoming)
{
var buffer = new MSI.TlsBuffer(BOSWrapper.Wrap(incoming));
var retval = Context.EncryptMessage(ref buffer);
incoming = BOSWrapper.Wrap(buffer.GetRemaining());
return((int)retval);
}
public TlsBuffer ReadBuffer (int length)
{
if (Position + length > EndOffset)
throw new TlsException (AlertDescription.DecodeError, "Buffer overflow");
var retval = new TlsBuffer (Buffer, Position, length);
Position += length;
return retval;
}
public void Add (TlsBuffer buffer)
{
Add (buffer.Buffer, buffer.Offset, buffer.Size);
}
public void Add(TlsBuffer buffer)
{
Add(buffer.Buffer, buffer.Offset, buffer.Size);
}
public int DecryptMessage (ref MSI.IBufferOffsetSize incoming)
{
var buffer = new MSI.TlsBuffer (BOSWrapper.Wrap (incoming));
var retval = Context.DecryptMessage (ref buffer);
incoming = buffer != null ? BOSWrapper.Wrap (buffer.GetRemaining ()) : null;
return (int)retval;
}
