adding packet types
diff --git a/of/api/src/main/java/org/onlab/onos/of/controller/DefaultPacketContext.java b/of/api/src/main/java/org/onlab/onos/of/controller/DefaultPacketContext.java
new file mode 100644
index 0000000..988b809
--- /dev/null
+++ b/of/api/src/main/java/org/onlab/onos/of/controller/DefaultPacketContext.java
@@ -0,0 +1,62 @@
+package org.onlab.onos.of.controller;
+
+import org.onlab.packet.Ethernet;
+import org.projectfloodlight.openflow.protocol.OFPacketIn;
+import org.projectfloodlight.openflow.protocol.OFPacketOut;
+import org.projectfloodlight.openflow.types.OFPort;
+
+public class DefaultPacketContext implements PacketContext {
+
+    private boolean free = true;
+    private boolean isBuilt = false;
+    private final OpenFlowSwitch sw;
+    private final OFPacketIn pktin;
+    private final OFPacketOut pktout = null;
+
+    private DefaultPacketContext(OpenFlowSwitch s, OFPacketIn pkt) {
+        this.sw = s;
+        this.pktin = pkt;
+    }
+
+    @Override
+    public void block() {
+        free = false;
+    }
+
+    @Override
+    public void send() {
+        if (free && isBuilt) {
+            sw.sendMsg(pktout);
+        }
+
+    }
+
+    @Override
+    public void build(OFPort outPort) {
+        isBuilt = true;
+
+    }
+
+    @Override
+    public void build(Ethernet ethFrame, OFPort outPort) {
+        // TODO Auto-generated method stub
+
+    }
+
+    @Override
+    public Ethernet parsed() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    public Dpid dpid() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    public static PacketContext PacketContextFromPacketIn(OpenFlowSwitch s, OFPacketIn pkt) {
+        return new DefaultPacketContext(s, pkt);
+    }
+
+}
diff --git a/of/api/src/main/java/org/onlab/onos/of/controller/OpenFlowController.java b/of/api/src/main/java/org/onlab/onos/of/controller/OpenFlowController.java
index 5aec885..ab80eee 100644
--- a/of/api/src/main/java/org/onlab/onos/of/controller/OpenFlowController.java
+++ b/of/api/src/main/java/org/onlab/onos/of/controller/OpenFlowController.java
@@ -87,9 +87,10 @@
     /**
      * Process a message and notify the appropriate listeners.
      *
+     * @param dpid the dpid the message arrived on
      * @param msg the message to process.
      */
-    public void processPacket(OFMessage msg);
+    public void processPacket(Dpid dpid, OFMessage msg);
 
     /**
      * Sets the role for a given switch.
diff --git a/of/api/src/main/java/org/onlab/onos/of/controller/PacketContext.java b/of/api/src/main/java/org/onlab/onos/of/controller/PacketContext.java
index bc06e93..f7d434d 100644
--- a/of/api/src/main/java/org/onlab/onos/of/controller/PacketContext.java
+++ b/of/api/src/main/java/org/onlab/onos/of/controller/PacketContext.java
@@ -1,5 +1,6 @@
 package org.onlab.onos.of.controller;
 
+import org.onlab.packet.Ethernet;
 import org.projectfloodlight.openflow.types.OFPort;
 
 /**
@@ -34,13 +35,13 @@
      * @param ethFrame the actual packet to send out.
      * @param outPort the out port to send to packet out of.
      */
-    public void build(Object ethFrame, OFPort outPort);
+    public void build(Ethernet ethFrame, OFPort outPort);
 
     /**
      * Provided a handle onto the parsed payload.
      * @return the parsed form of the payload.
      */
-    public Object parsed();
+    public Ethernet parsed();
 
     /**
      * Provide the dpid of the switch where the packet in arrived.
diff --git a/of/api/src/main/java/org/onlab/onos/of/controller/driver/AbstractOpenFlowSwitch.java b/of/api/src/main/java/org/onlab/onos/of/controller/driver/AbstractOpenFlowSwitch.java
index 0a83360..3c573d3 100644
--- a/of/api/src/main/java/org/onlab/onos/of/controller/driver/AbstractOpenFlowSwitch.java
+++ b/of/api/src/main/java/org/onlab/onos/of/controller/driver/AbstractOpenFlowSwitch.java
@@ -159,7 +159,7 @@
      */
     @Override
     public final void handleMessage(OFMessage m) {
-        this.agent.processMessage(m);
+        this.agent.processMessage(dpid, m);
     }
 
     @Override
diff --git a/of/api/src/main/java/org/onlab/onos/of/controller/driver/OpenFlowAgent.java b/of/api/src/main/java/org/onlab/onos/of/controller/driver/OpenFlowAgent.java
index a0f64e2..0d37666 100644
--- a/of/api/src/main/java/org/onlab/onos/of/controller/driver/OpenFlowAgent.java
+++ b/of/api/src/main/java/org/onlab/onos/of/controller/driver/OpenFlowAgent.java
@@ -69,7 +69,9 @@
 
     /**
      * Process a message coming from a switch.
+     *
+     * @param dpid the dpid the message came on.
      * @param m the message to process
      */
-    public void processMessage(OFMessage m);
+    public void processMessage(Dpid dpid, OFMessage m);
 }