applications/table-miss-enforcer/src/main/java/org/opendaylight/openflowplugin/applications/tableMissEnforcer/LLDPPacketPuntEnforcer.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.openflowplugin.applications.tableMissEnforcer;
  10
  11 import java.math.BigInteger;
  12 import java.util.ArrayList;
  13 import java.util.List;
  14 import java.util.Set;
  15 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  16 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  17 import org.opendaylight.openflowplugin.api.OFConstants;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.OutputActionCaseBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.action.output.action._case.OutputActionBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.Action;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionKey;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowKey;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowInputBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowCookie;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowModFlags;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.OutputPortValues;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.InstructionsBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.ApplyActionsCaseBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.instruction.apply.actions._case.ApplyActionsBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.InstructionKey;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  42 import org.opendaylight.yangtools.yang.binding.DataObject;
  43 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  44
  45 /**
  46  * Created by Martin Bobak mbobak@cisco.com on 8/27/14.
  47  */
  48 public class LLDPPacketPuntEnforcer implements DataChangeListener {
  49
  50     private static final short TABLE_ID = (short) 0;
  51     private static final String LLDP_PUNT_WHOLE_PACKET_FLOW = "LLDP_PUNT_WHOLE_PACKET_FLOW";
  52     private static final String DEFAULT_FLOW_ID = "42";
  53     private final SalFlowService flowService;
  54
  55     public LLDPPacketPuntEnforcer(SalFlowService flowService) {
  56         this.flowService = flowService;
  57     }
  58
  59     @Override
  60     public void onDataChanged(AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
  61         final Set<InstanceIdentifier<?>> changedDataKeys = change.getCreatedData().keySet();
  62
  63         if (changedDataKeys != null) {
  64             for (InstanceIdentifier<?> key : changedDataKeys) {
  65                 AddFlowInputBuilder addFlowInput = new AddFlowInputBuilder(createFlow());
  66                 addFlowInput.setNode(new NodeRef(key.firstIdentifierOf(Node.class)));
  67                 this.flowService.addFlow(addFlowInput.build());
  68             }
  69         }
  70     }
  71
  72
  73     protected Flow createFlow() {
  74         FlowBuilder flowBuilder = new FlowBuilder();
  75         flowBuilder.setMatch(new MatchBuilder().build());
  76         flowBuilder.setInstructions(createSendToControllerInstructions().build());
  77         flowBuilder.setPriority(0);
  78
  79         FlowKey key = new FlowKey(new FlowId(DEFAULT_FLOW_ID));
  80         flowBuilder.setBarrier(Boolean.FALSE);
  81         // flow.setBufferId(new Long(12));
  82         BigInteger value = new BigInteger("10", 10);
  83         // BigInteger outputPort = new BigInteger("65535", 10);
  84         flowBuilder.setCookie(new FlowCookie(value));
  85         flowBuilder.setCookieMask(new FlowCookie(value));
  86         flowBuilder.setHardTimeout(0);
  87         flowBuilder.setIdleTimeout(0);
  88         flowBuilder.setInstallHw(false);
  89         flowBuilder.setStrict(false);
  90         flowBuilder.setContainerName(null);
  91         flowBuilder.setFlags(new FlowModFlags(false, false, false, false, true));
  92         flowBuilder.setId(new FlowId("12"));
  93         flowBuilder.setTableId(TABLE_ID);
  94         flowBuilder.setKey(key);
  95         flowBuilder.setFlowName(LLDP_PUNT_WHOLE_PACKET_FLOW);
  96
  97         return flowBuilder.build();
  98     }
  99
 100     private static InstructionsBuilder createSendToControllerInstructions() {
 101         List<Action> actionList = new ArrayList<Action>();
 102         ActionBuilder ab = new ActionBuilder();
 103
 104         OutputActionBuilder output = new OutputActionBuilder();
 105         output.setMaxLength(OFConstants.OFPCML_NO_BUFFER);
 106         Uri value = new Uri(OutputPortValues.CONTROLLER.toString());
 107         output.setOutputNodeConnector(value);
 108         ab.setAction(new OutputActionCaseBuilder().setOutputAction(output.build()).build());
 109         ab.setOrder(0);
 110         ab.setKey(new ActionKey(0));
 111         actionList.add(ab.build());
 112         // Create an Apply Action
 113         ApplyActionsBuilder aab = new ApplyActionsBuilder();
 114         aab.setAction(actionList);
 115
 116         // Wrap our Apply Action in an Instruction
 117         InstructionBuilder ib = new InstructionBuilder();
 118         ib.setInstruction(new ApplyActionsCaseBuilder().setApplyActions(aab.build()).build());
 119         ib.setOrder(0);
 120         ib.setKey(new InstructionKey(0));
 121
 122         // Put our Instruction in a list of Instructions
 123         InstructionsBuilder isb = new InstructionsBuilder();
 124         List<Instruction> instructions = new ArrayList<Instruction>();
 125         instructions.add(ib.build());
 126         isb.setInstruction(instructions);
 127         return isb;
 128     }
 129
 130 }