| /* |
| * Copyright 2015 Open Networking Laboratory |
| * |
| * 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 org.onosproject.driver.extensions; |
| |
| import org.onlab.packet.Ip4Address; |
| import org.onosproject.net.behaviour.ExtensionResolver; |
| import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| import org.onosproject.net.flow.instructions.ExtensionInstruction; |
| import org.onosproject.net.flow.instructions.ExtensionType; |
| import org.onosproject.openflow.controller.ExtensionInterpreter; |
| import org.projectfloodlight.openflow.protocol.OFActionType; |
| import org.projectfloodlight.openflow.protocol.OFFactory; |
| import org.projectfloodlight.openflow.protocol.action.OFAction; |
| import org.projectfloodlight.openflow.protocol.action.OFActionSetField; |
| import org.projectfloodlight.openflow.protocol.oxm.OFOxm; |
| import org.projectfloodlight.openflow.protocol.oxm.OFOxmTunnelIpv4Dst; |
| import org.projectfloodlight.openflow.types.IPv4Address; |
| |
| /** |
| * Interpreter for Nicira OpenFlow extensions. |
| */ |
| public class NiciraExtensionInterpreter extends AbstractHandlerBehaviour |
| implements ExtensionInterpreter, ExtensionResolver { |
| |
| @Override |
| public boolean supported(ExtensionType extensionType) { |
| if (extensionType.equals(ExtensionType.ExtensionTypes.NICIRA_SET_TUNNEL_DST.type())) { |
| return true; |
| } |
| if (extensionType.equals(ExtensionType.ExtensionTypes.NICIRA_RESUBMIT.type())) { |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public OFAction mapInstruction(OFFactory factory, ExtensionInstruction extensionInstruction) { |
| ExtensionType type = extensionInstruction.type(); |
| if (type.equals(ExtensionType.ExtensionTypes.NICIRA_SET_TUNNEL_DST.type())) { |
| NiciraSetTunnelDst tunnelDst = (NiciraSetTunnelDst) extensionInstruction; |
| return factory.actions().setField(factory.oxms().tunnelIpv4Dst( |
| IPv4Address.of(tunnelDst.tunnelDst().toInt()))); |
| } |
| if (type.equals(ExtensionType.ExtensionTypes.NICIRA_RESUBMIT.type())) { |
| // TODO this will be implemented later |
| } |
| return null; |
| } |
| |
| @Override |
| public ExtensionInstruction mapAction(OFAction action) { |
| if (action.getType().equals(OFActionType.SET_FIELD)) { |
| OFActionSetField setFieldAction = (OFActionSetField) action; |
| OFOxm<?> oxm = setFieldAction.getField(); |
| switch (oxm.getMatchField().id) { |
| case TUNNEL_IPV4_DST: |
| OFOxmTunnelIpv4Dst tunnelIpv4Dst = (OFOxmTunnelIpv4Dst) oxm; |
| return new NiciraSetTunnelDst(Ip4Address.valueOf(tunnelIpv4Dst.getValue().getInt())); |
| default: |
| throw new UnsupportedOperationException( |
| "Driver does not support extension type " + oxm.getMatchField().id); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public ExtensionInstruction getExtensionInstruction(ExtensionType type) { |
| if (type.equals(ExtensionType.ExtensionTypes.NICIRA_SET_TUNNEL_DST.type())) { |
| return new NiciraSetTunnelDst(); |
| } |
| if (type.equals(ExtensionType.ExtensionTypes.NICIRA_RESUBMIT.type())) { |
| return new NiciraResubmit(); |
| } |
| throw new UnsupportedOperationException( |
| "Driver does not support extension type " + type.toString()); |
| } |
| } |