| /* |
| * Copyright 2014 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.onlab.onos.provider.of.flow.impl; |
| |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Optional; |
| |
| import org.onlab.onos.net.flow.FlowRule; |
| import org.onlab.onos.net.flow.TrafficTreatment; |
| import org.onlab.onos.net.flow.instructions.Instruction; |
| import org.onlab.onos.net.flow.instructions.Instructions.OutputInstruction; |
| import org.onlab.onos.net.flow.instructions.L0ModificationInstruction; |
| import org.onlab.onos.net.flow.instructions.L0ModificationInstruction.ModLambdaInstruction; |
| import org.onlab.onos.net.flow.instructions.L2ModificationInstruction; |
| import org.onlab.onos.net.flow.instructions.L2ModificationInstruction.ModEtherInstruction; |
| import org.onlab.onos.net.flow.instructions.L2ModificationInstruction.ModVlanIdInstruction; |
| import org.onlab.onos.net.flow.instructions.L2ModificationInstruction.ModVlanPcpInstruction; |
| import org.onlab.onos.net.flow.instructions.L2ModificationInstruction.ModMplsLabelInstruction; |
| import org.onlab.onos.net.flow.instructions.L2ModificationInstruction.PushHeaderInstructions; |
| import org.onlab.onos.net.flow.instructions.L3ModificationInstruction; |
| import org.onlab.onos.net.flow.instructions.L3ModificationInstruction.ModIPInstruction; |
| import org.onlab.packet.Ip4Address; |
| import org.projectfloodlight.openflow.protocol.OFFactory; |
| import org.projectfloodlight.openflow.protocol.OFFlowAdd; |
| import org.projectfloodlight.openflow.protocol.OFFlowDelete; |
| import org.projectfloodlight.openflow.protocol.OFFlowMod; |
| import org.projectfloodlight.openflow.protocol.OFFlowModFlags; |
| import org.projectfloodlight.openflow.protocol.action.OFAction; |
| import org.projectfloodlight.openflow.protocol.match.Match; |
| import org.projectfloodlight.openflow.protocol.oxm.OFOxm; |
| import org.projectfloodlight.openflow.types.CircuitSignalID; |
| import org.projectfloodlight.openflow.types.EthType; |
| import org.projectfloodlight.openflow.types.IPv4Address; |
| import org.projectfloodlight.openflow.types.MacAddress; |
| import org.projectfloodlight.openflow.types.OFBufferId; |
| import org.projectfloodlight.openflow.types.OFPort; |
| import org.projectfloodlight.openflow.types.OFVlanVidMatch; |
| import org.projectfloodlight.openflow.types.U32; |
| import org.projectfloodlight.openflow.types.U64; |
| import org.projectfloodlight.openflow.types.VlanPcp; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Flow mod builder for OpenFlow 1.3+. |
| */ |
| public class FlowModBuilderVer13 extends FlowModBuilder { |
| |
| private static final Logger log = LoggerFactory.getLogger(FlowModBuilderVer10.class); |
| |
| private final TrafficTreatment treatment; |
| |
| /** |
| * Constructor for a flow mod builder for OpenFlow 1.3. |
| * |
| * @param flowRule the flow rule to transform into a flow mod |
| * @param factory the OpenFlow factory to use to build the flow mod |
| * @param xid the transaction ID |
| */ |
| protected FlowModBuilderVer13(FlowRule flowRule, OFFactory factory, Optional<Long> xid) { |
| super(flowRule, factory, xid); |
| |
| this.treatment = flowRule.treatment(); |
| } |
| |
| @Override |
| public OFFlowAdd buildFlowAdd() { |
| Match match = buildMatch(); |
| List<OFAction> actions = buildActions(); |
| |
| // FIXME had to revert back to using apply-actions instead of |
| // write-actions because LINC-OE apparently doesn't support |
| // write-actions. I would prefer to change this back in the future |
| // because apply-actions is an optional instruction in OF 1.3. |
| |
| //OFInstruction writeActions = |
| //factory().instructions().writeActions(actions); |
| |
| long cookie = flowRule().id().value(); |
| |
| //TODO: what to do without bufferid? do we assume that there will be a pktout as well? |
| OFFlowAdd fm = factory().buildFlowAdd() |
| .setXid(xid) |
| .setCookie(U64.of(cookie)) |
| .setBufferId(OFBufferId.NO_BUFFER) |
| .setActions(actions) |
| //.setInstructions(Collections.singletonList(writeActions)) |
| .setMatch(match) |
| .setFlags(Collections.singleton(OFFlowModFlags.SEND_FLOW_REM)) |
| .setPriority(flowRule().priority()) |
| .build(); |
| |
| return fm; |
| } |
| |
| @Override |
| public OFFlowMod buildFlowMod() { |
| Match match = buildMatch(); |
| List<OFAction> actions = buildActions(); |
| //OFInstruction writeActions = |
| //factory().instructions().writeActions(actions); |
| |
| long cookie = flowRule().id().value(); |
| |
| //TODO: what to do without bufferid? do we assume that there will be a pktout as well? |
| OFFlowMod fm = factory().buildFlowModify() |
| .setXid(xid) |
| .setCookie(U64.of(cookie)) |
| .setBufferId(OFBufferId.NO_BUFFER) |
| .setActions(actions) |
| //.setInstructions(Collections.singletonList(writeActions)) |
| .setMatch(match) |
| .setFlags(Collections.singleton(OFFlowModFlags.SEND_FLOW_REM)) |
| .setPriority(flowRule().priority()) |
| .build(); |
| |
| return fm; |
| } |
| |
| @Override |
| public OFFlowDelete buildFlowDel() { |
| Match match = buildMatch(); |
| List<OFAction> actions = buildActions(); |
| //OFInstruction writeActions = |
| //factory().instructions().writeActions(actions); |
| |
| long cookie = flowRule().id().value(); |
| |
| OFFlowDelete fm = factory().buildFlowDelete() |
| .setXid(xid) |
| .setCookie(U64.of(cookie)) |
| .setBufferId(OFBufferId.NO_BUFFER) |
| //.setActions(actions) //FIXME do we want to send actions in flowdel? |
| //.setInstructions(Collections.singletonList(writeActions)) |
| .setMatch(match) |
| .setFlags(Collections.singleton(OFFlowModFlags.SEND_FLOW_REM)) |
| .setPriority(flowRule().priority()) |
| .build(); |
| |
| return fm; |
| } |
| |
| private List<OFAction> buildActions() { |
| List<OFAction> actions = new LinkedList<>(); |
| if (treatment == null) { |
| return actions; |
| } |
| for (Instruction i : treatment.instructions()) { |
| switch (i.type()) { |
| case DROP: |
| log.warn("Saw drop action; assigning drop action"); |
| return new LinkedList<>(); |
| case L0MODIFICATION: |
| actions.add(buildL0Modification(i)); |
| break; |
| case L2MODIFICATION: |
| actions.add(buildL2Modification(i)); |
| break; |
| case L3MODIFICATION: |
| actions.add(buildL3Modification(i)); |
| break; |
| case OUTPUT: |
| OutputInstruction out = (OutputInstruction) i; |
| actions.add(factory().actions().buildOutput().setPort( |
| OFPort.of((int) out.port().toLong())).build()); |
| break; |
| case GROUP: |
| default: |
| log.warn("Instruction type {} not yet implemented.", i.type()); |
| } |
| } |
| |
| return actions; |
| } |
| |
| private OFAction buildL0Modification(Instruction i) { |
| L0ModificationInstruction l0m = (L0ModificationInstruction) i; |
| switch (l0m.subtype()) { |
| case LAMBDA: |
| ModLambdaInstruction ml = (ModLambdaInstruction) i; |
| return factory().actions().circuit(factory().oxms().ochSigidBasic( |
| new CircuitSignalID((byte) 1, (byte) 2, ml.lambda(), (short) 1))); |
| default: |
| log.warn("Unimplemented action type {}.", l0m.subtype()); |
| break; |
| } |
| return null; |
| } |
| |
| private OFAction buildL2Modification(Instruction i) { |
| L2ModificationInstruction l2m = (L2ModificationInstruction) i; |
| ModEtherInstruction eth; |
| OFOxm<?> oxm = null; |
| switch (l2m.subtype()) { |
| case ETH_DST: |
| eth = (ModEtherInstruction) l2m; |
| oxm = factory().oxms().ethDst(MacAddress.of(eth.mac().toLong())); |
| break; |
| case ETH_SRC: |
| eth = (ModEtherInstruction) l2m; |
| oxm = factory().oxms().ethSrc(MacAddress.of(eth.mac().toLong())); |
| break; |
| case VLAN_ID: |
| ModVlanIdInstruction vlanId = (ModVlanIdInstruction) l2m; |
| oxm = factory().oxms().vlanVid(OFVlanVidMatch.ofVlan(vlanId.vlanId().toShort())); |
| break; |
| case VLAN_PCP: |
| ModVlanPcpInstruction vlanPcp = (ModVlanPcpInstruction) l2m; |
| oxm = factory().oxms().vlanPcp(VlanPcp.of(vlanPcp.vlanPcp())); |
| break; |
| case MPLS_PUSH: |
| PushHeaderInstructions pushHeaderInstructions = |
| (PushHeaderInstructions) l2m; |
| return factory().actions().pushMpls(EthType.of(pushHeaderInstructions |
| .ethernetType().getEtherType())); |
| case MPLS_POP: |
| PushHeaderInstructions popHeaderInstructions = |
| (PushHeaderInstructions) l2m; |
| return factory().actions().popMpls(EthType.of(popHeaderInstructions |
| .ethernetType().getEtherType())); |
| case MPLS_LABEL: |
| ModMplsLabelInstruction mplsLabel = |
| (ModMplsLabelInstruction) l2m; |
| oxm = factory().oxms().mplsLabel(U32.of(mplsLabel.label() |
| .longValue())); |
| |
| break; |
| default: |
| log.warn("Unimplemented action type {}.", l2m.subtype()); |
| break; |
| } |
| |
| if (oxm != null) { |
| return factory().actions().buildSetField().setField(oxm).build(); |
| } |
| return null; |
| } |
| |
| private OFAction buildL3Modification(Instruction i) { |
| L3ModificationInstruction l3m = (L3ModificationInstruction) i; |
| ModIPInstruction ip; |
| Ip4Address ip4; |
| OFOxm<?> oxm = null; |
| switch (l3m.subtype()) { |
| case IP_DST: |
| ip = (ModIPInstruction) i; |
| ip4 = ip.ip().getIp4Address(); |
| oxm = factory().oxms().ipv4Dst(IPv4Address.of(ip4.toInt())); |
| break; |
| case IP_SRC: |
| ip = (ModIPInstruction) i; |
| ip4 = ip.ip().getIp4Address(); |
| oxm = factory().oxms().ipv4Src(IPv4Address.of(ip4.toInt())); |
| break; |
| default: |
| log.warn("Unimplemented action type {}.", l3m.subtype()); |
| break; |
| } |
| |
| if (oxm != null) { |
| return factory().actions().buildSetField().setField(oxm).build(); |
| } |
| return null; |
| } |
| |
| } |