Begin to add CapabilitiesSettings.

californium-core/src/main/java/org/eclipse/californium/core/network/stack/CapabilitiesSettingsLayer.java

@@ -0,0 +1,18 @@
+package org.eclipse.californium.core.network.stack;
+
+import org.eclipse.californium.elements.EndpointContext;
+
+public class CapabilitiesSettingsLayer extends AbstractConnectionOrientedLayer {
+
+	@Override
+	public void connected(EndpointContext context) {
+
+		// TODO send CSM Message ?
+		// But we need an exchange :S
+
+		// sendEmptyMessage(null, null); ?
+		// sendRequest(null, null); ?
+
+		super.connected(context);
+	}
+}

californium-core/src/main/java/org/eclipse/californium/core/network/stack/CoapTcpStack.java

@@ -90,7 +90,7 @@ public CoapTcpStack(String tag, Configuration config, EndpointContextMatcher mat
 		super(outbox);
 
 		ConnectionOrientedLayer layers[] = new ConnectionOrientedLayer[] { new TcpExchangeCleanupLayer(), new TcpObserveLayer(config),
-				new TcpBlockwiseLayer(tag, config, matchingStrategy), new TcpAdaptionLayer() };
+				new TcpBlockwiseLayer(tag, config, matchingStrategy), new TcpAdaptionLayer(), new CapabilitiesSettingsLayer()};
 
 		setLayers(layers);