/**
* Copyright 2011, Big Switch Networks, Inc.
* Originally created by David Erickson, Stanford University
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License. You may obtain
* a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
**/
package net.floodlightcontroller.hub;
import static org.easymock.EasyMock.createMock;
import static org.easymock.EasyMock.replay;
import static org.easymock.EasyMock.verify;
import static org.easymock.EasyMock.capture;
import java.util.Arrays;
import net.floodlightcontroller.core.FloodlightContext;
import net.floodlightcontroller.core.IOFMessageListener;
import net.floodlightcontroller.core.IOFSwitch;
import net.floodlightcontroller.core.test.MockFloodlightProvider;
import net.floodlightcontroller.packet.Data;
import net.floodlightcontroller.packet.Ethernet;
import net.floodlightcontroller.packet.IPacket;
import net.floodlightcontroller.packet.IPv4;
import net.floodlightcontroller.packet.UDP;
import net.floodlightcontroller.test.FloodlightTestCase;
import org.easymock.Capture;
import org.easymock.CaptureType;
import org.junit.Before;
import org.junit.Test;
import org.openflow.protocol.OFPacketIn;
import org.openflow.protocol.OFPacketIn.OFPacketInReason;
import org.openflow.protocol.OFMessage;
import org.openflow.protocol.OFPacketOut;
import org.openflow.protocol.OFPort;
import org.openflow.protocol.OFType;
import org.openflow.protocol.action.OFAction;
import org.openflow.protocol.action.OFActionOutput;
/**
*
* @author David Erickson (daviderickson@cs.stanford.edu)
*/
public class HubTest extends FloodlightTestCase {
protected OFPacketIn packetIn;
protected IPacket testPacket;
protected byte[] testPacketSerialized;
private MockFloodlightProvider mockFloodlightProvider;
private Hub hub;
@Before
public void setUp() throws Exception {
super.setUp();
mockFloodlightProvider = getMockFloodlightProvider();
hub = new Hub();
mockFloodlightProvider.addOFMessageListener(OFType.PACKET_IN, hub);
hub.setFloodlightProvider(mockFloodlightProvider);
// Build our test packet
this.testPacket = new Ethernet()
.setDestinationMACAddress("00:11:22:33:44:55")
.setSourceMACAddress("00:44:33:22:11:00")
.setEtherType(Ethernet.TYPE_IPv4)
.setPayload(
new IPv4()
.setTtl((byte) 128)
.setSourceAddress("192.168.1.1")
.setDestinationAddress("192.168.1.2")
.setPayload(new UDP()
.setSourcePort((short) 5000)
.setDestinationPort((short) 5001)
.setPayload(new Data(new byte[] {0x01}))));
this.testPacketSerialized = testPacket.serialize();
// Build the PacketIn
this.packetIn = ((OFPacketIn) mockFloodlightProvider.getOFMessageFactory().getMessage(OFType.PACKET_IN))
.setBufferId(-1)
.setInPort((short) 1)
.setPacketData(this.testPacketSerialized)
.setReason(OFPacketInReason.NO_MATCH)
.setTotalLength((short) this.testPacketSerialized.length);
}
@Test
public void testFloodNoBufferId() throws Exception {
// build our expected flooded packetOut
OFPacketOut po = ((OFPacketOut) mockFloodlightProvider.getOFMessageFactory().getMessage(OFType.PACKET_OUT))
.setActions(Arrays.asList(new OFAction[] {new OFActionOutput().setPort(OFPort.OFPP_FLOOD.getValue())}))
.setActionsLength((short) OFActionOutput.MINIMUM_LENGTH)
.setBufferId(-1)
.setInPort((short) 1)
.setPacketData(this.testPacketSerialized);
po.setLengthU(OFPacketOut.MINIMUM_LENGTH + po.getActionsLengthU()
+ this.testPacketSerialized.length);
// Mock up our expected behavior
IOFSwitch mockSwitch = createMock(IOFSwitch.class);
Capture<OFMessage> wc1 = new Capture<OFMessage>(CaptureType.ALL);
Capture<FloodlightContext> bc1 = new Capture<FloodlightContext>(CaptureType.ALL);
mockSwitch.write(capture(wc1), capture(bc1));
// Start recording the replay on the mocks
replay(mockSwitch);
// Get the listener and trigger the packet in
IOFMessageListener listener = mockFloodlightProvider.getListeners().get(
OFType.PACKET_IN).get(0);
listener.receive(mockSwitch, this.packetIn,
parseAndAnnotate(this.packetIn));
// Verify the replay matched our expectations
verify(mockSwitch);
assertTrue(wc1.hasCaptured());
OFMessage m = wc1.getValue();
assertEquals(po, m);
}
@Test
public void testFloodBufferId() throws Exception {
MockFloodlightProvider mockFloodlightProvider = getMockFloodlightProvider();
this.packetIn.setBufferId(10);
// build our expected flooded packetOut
OFPacketOut po = ((OFPacketOut) mockFloodlightProvider.getOFMessageFactory().getMessage(OFType.PACKET_OUT))
.setActions(Arrays.asList(new OFAction[] {new OFActionOutput().setPort(OFPort.OFPP_FLOOD.getValue())}))
.setActionsLength((short) OFActionOutput.MINIMUM_LENGTH)
.setBufferId(10)
.setInPort((short) 1);
po.setLengthU(OFPacketOut.MINIMUM_LENGTH + po.getActionsLengthU());
// Mock up our expected behavior
IOFSwitch mockSwitch = createMock(IOFSwitch.class);
Capture<OFMessage> wc1 = new Capture<OFMessage>(CaptureType.ALL);
Capture<FloodlightContext> bc1 = new Capture<FloodlightContext>(CaptureType.ALL);
mockSwitch.write(capture(wc1), capture(bc1));
// Start recording the replay on the mocks
replay(mockSwitch);
// Get the listener and trigger the packet in
IOFMessageListener listener = mockFloodlightProvider.getListeners().get(
OFType.PACKET_IN).get(0);
listener.receive(mockSwitch, this.packetIn,
parseAndAnnotate(this.packetIn));
// Verify the replay matched our expectations
verify(mockSwitch);
assertTrue(wc1.hasCaptured());
OFMessage m = wc1.getValue();
assertEquals(po, m);
}
}