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/*
* Copyright 2014-2015 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.provider.of.flow.impl;
import com.google.common.collect.Lists;
import org.onlab.packet.Ip4Address;
import org.onlab.packet.Ip6Address;
import org.onosproject.net.OchSignal;
import org.onosproject.net.OduSignalId;
import org.onosproject.net.PortNumber;
import org.onosproject.net.driver.DefaultDriverData;
import org.onosproject.net.driver.DefaultDriverHandler;
import org.onosproject.net.driver.Driver;
import org.onosproject.net.driver.DriverService;
import org.onosproject.net.flow.FlowRule;
import org.onosproject.net.flow.TrafficTreatment;
import org.onosproject.net.flow.instructions.ExtensionTreatment;
import org.onosproject.net.flow.instructions.Instruction;
import org.onosproject.net.flow.instructions.Instructions;
import org.onosproject.net.flow.instructions.Instructions.GroupInstruction;
import org.onosproject.net.flow.instructions.Instructions.OutputInstruction;
import org.onosproject.net.flow.instructions.Instructions.SetQueueInstruction;
import org.onosproject.net.flow.instructions.L0ModificationInstruction;
import org.onosproject.net.flow.instructions.L0ModificationInstruction.ModLambdaInstruction;
import org.onosproject.net.flow.instructions.L0ModificationInstruction.ModOchSignalInstruction;
import org.onosproject.net.flow.instructions.L1ModificationInstruction;
import org.onosproject.net.flow.instructions.L1ModificationInstruction.ModOduSignalIdInstruction;
import org.onosproject.net.flow.instructions.L2ModificationInstruction;
import org.onosproject.net.flow.instructions.L2ModificationInstruction.ModEtherInstruction;
import org.onosproject.net.flow.instructions.L2ModificationInstruction.ModMplsBosInstruction;
import org.onosproject.net.flow.instructions.L2ModificationInstruction.ModMplsLabelInstruction;
import org.onosproject.net.flow.instructions.L2ModificationInstruction.ModTunnelIdInstruction;
import org.onosproject.net.flow.instructions.L2ModificationInstruction.ModVlanIdInstruction;
import org.onosproject.net.flow.instructions.L2ModificationInstruction.ModVlanPcpInstruction;
import org.onosproject.net.flow.instructions.L2ModificationInstruction.PushHeaderInstructions;
import org.onosproject.net.flow.instructions.L3ModificationInstruction;
import org.onosproject.net.flow.instructions.L3ModificationInstruction.ModArpEthInstruction;
import org.onosproject.net.flow.instructions.L3ModificationInstruction.ModArpIPInstruction;
import org.onosproject.net.flow.instructions.L3ModificationInstruction.ModArpOpInstruction;
import org.onosproject.net.flow.instructions.L3ModificationInstruction.ModIPInstruction;
import org.onosproject.net.flow.instructions.L3ModificationInstruction.ModIPv6FlowLabelInstruction;
import org.onosproject.net.flow.instructions.L4ModificationInstruction;
import org.onosproject.net.flow.instructions.L4ModificationInstruction.ModTransportPortInstruction;
import org.onosproject.openflow.controller.ExtensionTreatmentInterpreter;
import org.projectfloodlight.openflow.protocol.OFFactory;
import org.projectfloodlight.openflow.protocol.OFFlowAdd;
import org.projectfloodlight.openflow.protocol.OFFlowDeleteStrict;
import org.projectfloodlight.openflow.protocol.OFFlowMod;
import org.projectfloodlight.openflow.protocol.OFFlowModFlags;
import org.projectfloodlight.openflow.protocol.action.OFAction;
import org.projectfloodlight.openflow.protocol.action.OFActionGroup;
import org.projectfloodlight.openflow.protocol.action.OFActionOutput;
import org.projectfloodlight.openflow.protocol.action.OFActionSetQueue;
import org.projectfloodlight.openflow.protocol.instruction.OFInstruction;
import org.projectfloodlight.openflow.protocol.match.Match;
import org.projectfloodlight.openflow.protocol.oxm.OFOxm;
import org.projectfloodlight.openflow.types.ArpOpcode;
import org.projectfloodlight.openflow.types.CircuitSignalID;
import org.projectfloodlight.openflow.types.EthType;
import org.projectfloodlight.openflow.types.IPv4Address;
import org.projectfloodlight.openflow.types.IPv6Address;
import org.projectfloodlight.openflow.types.IPv6FlowLabel;
import org.projectfloodlight.openflow.types.MacAddress;
import org.projectfloodlight.openflow.types.OFBooleanValue;
import org.projectfloodlight.openflow.types.OFBufferId;
import org.projectfloodlight.openflow.types.OFGroup;
import org.projectfloodlight.openflow.types.OFPort;
import org.projectfloodlight.openflow.types.OFVlanVidMatch;
import org.projectfloodlight.openflow.types.OduSignalID;
import org.projectfloodlight.openflow.types.TableId;
import org.projectfloodlight.openflow.types.TransportPort;
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;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Optional;
/**
* Flow mod builder for OpenFlow 1.3+.
*/
public class FlowModBuilderVer13 extends FlowModBuilder {
private final Logger log = LoggerFactory.getLogger(getClass());
private static final int OFPCML_NO_BUFFER = 0xffff;
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
* @param driverService the device driver service
*/
protected FlowModBuilderVer13(FlowRule flowRule, OFFactory factory, Optional xid,
Optional driverService) {
super(flowRule, factory, xid, driverService);
this.treatment = flowRule.treatment();
}
@Override
public OFFlowMod buildFlowAdd() {
Match match = buildMatch();
List deferredActions = buildActions(treatment.deferred());
List immediateActions = buildActions(treatment.immediate());
List instructions = Lists.newLinkedList();
if (treatment.clearedDeferred()) {
instructions.add(factory().instructions().clearActions());
}
if (immediateActions.size() > 0) {
instructions.add(factory().instructions().applyActions(immediateActions));
}
if (deferredActions.size() > 0) {
instructions.add(factory().instructions().writeActions(deferredActions));
}
if (treatment.tableTransition() != null) {
instructions.add(buildTableGoto(treatment.tableTransition()));
}
if (treatment.writeMetadata() != null) {
instructions.add(buildMetadata(treatment.writeMetadata()));
}
if (treatment.metered() != null) {
instructions.add(buildMeter(treatment.metered()));
}
long cookie = flowRule().id().value();
OFFlowAdd fm = factory().buildFlowAdd()
.setXid(xid)
.setCookie(U64.of(cookie))
.setBufferId(OFBufferId.NO_BUFFER)
.setInstructions(instructions)
.setMatch(match)
.setFlags(Collections.singleton(OFFlowModFlags.SEND_FLOW_REM))
.setPriority(flowRule().priority())
.setTableId(TableId.of(flowRule().tableId()))
.build();
return fm;
}
@Override
public OFFlowMod buildFlowMod() {
Match match = buildMatch();
List deferredActions = buildActions(treatment.deferred());
List immediateActions = buildActions(treatment.immediate());
List instructions = Lists.newLinkedList();
if (immediateActions.size() > 0) {
instructions.add(factory().instructions().applyActions(immediateActions));
}
if (treatment.clearedDeferred()) {
instructions.add(factory().instructions().clearActions());
}
if (deferredActions.size() > 0) {
instructions.add(factory().instructions().writeActions(deferredActions));
}
if (treatment.tableTransition() != null) {
instructions.add(buildTableGoto(treatment.tableTransition()));
}
if (treatment.writeMetadata() != null) {
instructions.add(buildMetadata(treatment.writeMetadata()));
}
if (treatment.metered() != null) {
instructions.add(buildMeter(treatment.metered()));
}
long cookie = flowRule().id().value();
OFFlowMod fm = factory().buildFlowModify()
.setXid(xid)
.setCookie(U64.of(cookie))
.setBufferId(OFBufferId.NO_BUFFER)
.setInstructions(instructions)
.setMatch(match)
.setFlags(Collections.singleton(OFFlowModFlags.SEND_FLOW_REM))
.setPriority(flowRule().priority())
.setTableId(TableId.of(flowRule().tableId()))
.build();
return fm;
}
@Override
public OFFlowMod buildFlowDel() {
Match match = buildMatch();
long cookie = flowRule().id().value();
OFFlowDeleteStrict fm = factory().buildFlowDeleteStrict()
.setXid(xid)
.setCookie(U64.of(cookie))
.setBufferId(OFBufferId.NO_BUFFER)
.setMatch(match)
.setFlags(Collections.singleton(OFFlowModFlags.SEND_FLOW_REM))
.setPriority(flowRule().priority())
.setTableId(TableId.of(flowRule().tableId()))
.build();
return fm;
}
private List buildActions(List treatments) {
if (treatment == null) {
return Collections.emptyList();
}
boolean tableFound = false;
List actions = new LinkedList<>();
for (Instruction i : treatments) {
switch (i.type()) {
case DROP:
case NOACTION:
return Collections.emptyList();
case L0MODIFICATION:
actions.add(buildL0Modification(i));
break;
case L1MODIFICATION:
actions.add(buildL1Modification(i));
break;
case L2MODIFICATION:
actions.add(buildL2Modification(i));
break;
case L3MODIFICATION:
actions.add(buildL3Modification(i));
break;
case L4MODIFICATION:
actions.add(buildL4Modification(i));
break;
case OUTPUT:
OutputInstruction out = (OutputInstruction) i;
OFActionOutput.Builder action = factory().actions().buildOutput()
.setPort(OFPort.of((int) out.port().toLong()));
if (out.port().equals(PortNumber.CONTROLLER)) {
action.setMaxLen(OFPCML_NO_BUFFER);
}
actions.add(action.build());
break;
case GROUP:
GroupInstruction group = (GroupInstruction) i;
OFActionGroup.Builder groupBuilder = factory().actions().buildGroup()
.setGroup(OFGroup.of(group.groupId().id()));
actions.add(groupBuilder.build());
break;
case QUEUE:
SetQueueInstruction queue = (SetQueueInstruction) i;
OFActionSetQueue.Builder queueBuilder = factory().actions().buildSetQueue()
.setQueueId(queue.queueId());
actions.add(queueBuilder.build());
break;
case TABLE:
//FIXME: should not occur here.
tableFound = true;
break;
case EXTENSION:
actions.add(buildExtensionAction(((Instructions.ExtensionInstructionWrapper) i)
.extensionInstruction()));
break;
default:
log.warn("Instruction type {} not yet implemented.", i.type());
}
}
if (tableFound && actions.isEmpty()) {
// handles the case where there are no actions, but there is
// a goto instruction for the next table
return Collections.emptyList();
}
return actions;
}
private OFInstruction buildTableGoto(Instructions.TableTypeTransition i) {
OFInstruction instruction = factory().instructions().gotoTable(
TableId.of(i.tableId()));
return instruction;
}
private OFInstruction buildMetadata(Instructions.MetadataInstruction m) {
OFInstruction instruction = factory().instructions().writeMetadata(
U64.of(m.metadata()), U64.of(m.metadataMask()));
return instruction;
}
private OFInstruction buildMeter(Instructions.MeterInstruction metered) {
return factory().instructions().meter(metered.meterId().id());
}
private OFAction buildL0Modification(Instruction i) {
L0ModificationInstruction l0m = (L0ModificationInstruction) i;
OFOxm oxm = null;
switch (l0m.subtype()) {
case LAMBDA:
return buildModLambdaInstruction((ModLambdaInstruction) i);
case OCH:
try {
ModOchSignalInstruction modOchSignalInstruction = (ModOchSignalInstruction) l0m;
OchSignal signal = modOchSignalInstruction.lambda();
byte gridType = OpenFlowValueMapper.lookupGridType(signal.gridType());
byte channelSpacing = OpenFlowValueMapper.lookupChannelSpacing(signal.channelSpacing());
oxm = factory().oxms().expOchSigId(
new CircuitSignalID(gridType, channelSpacing,
(short) signal.spacingMultiplier(), (short) signal.slotGranularity()));
} catch (NoMappingFoundException e) {
log.warn(e.getMessage());
break;
}
break;
default:
log.warn("Unimplemented action type {}.", l0m.subtype());
break;
}
if (oxm != null) {
return factory().actions().buildSetField().setField(oxm).build();
}
return null;
}
private OFAction buildModLambdaInstruction(ModLambdaInstruction instruction) {
return factory().actions().circuit(factory().oxms().expOchSigId(
new CircuitSignalID((byte) 1, (byte) 2, instruction.lambda(), (short) 1)));
}
private OFAction buildModOchSignalInstruction(ModOchSignalInstruction instruction) {
OchSignal signal = instruction.lambda();
byte gridType = OpenFlowValueMapper.lookupGridType(signal.gridType());
byte channelSpacing = OpenFlowValueMapper.lookupChannelSpacing(signal.channelSpacing());
return factory().actions().circuit(factory().oxms().expOchSigId(
new CircuitSignalID(gridType, channelSpacing,
(short) signal.spacingMultiplier(), (short) signal.slotGranularity())
));
}
private OFAction buildL1Modification(Instruction i) {
L1ModificationInstruction l1m = (L1ModificationInstruction) i;
OFOxm oxm = null;
switch (l1m.subtype()) {
case ODU_SIGID:
ModOduSignalIdInstruction modOduSignalIdInstruction = (ModOduSignalIdInstruction) l1m;
OduSignalId oduSignalId = modOduSignalIdInstruction.oduSignalId();
OduSignalID oduSignalID = new OduSignalID((short) oduSignalId.tributaryPortNumber(),
(short) oduSignalId.tributarySlotLength(),
oduSignalId.tributarySlotBitmap());
oxm = factory().oxms().expOduSigId(oduSignalID);
break;
default:
log.warn("Unimplemented action type {}.", l1m.subtype());
break;
}
if (oxm != null) {
return factory().actions().buildSetField().setField(oxm).build();
}
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().toShort()));
case MPLS_POP:
PushHeaderInstructions popHeaderInstructions =
(PushHeaderInstructions) l2m;
return factory().actions().popMpls(EthType.of(popHeaderInstructions
.ethernetType().toShort()));
case MPLS_LABEL:
ModMplsLabelInstruction mplsLabel =
(ModMplsLabelInstruction) l2m;
oxm = factory().oxms().mplsLabel(U32.of(mplsLabel.label().toInt()));
break;
case MPLS_BOS:
ModMplsBosInstruction mplsBos = (ModMplsBosInstruction) l2m;
oxm = factory().oxms()
.mplsBos(mplsBos.mplsBos() ? OFBooleanValue.TRUE
: OFBooleanValue.FALSE);
break;
case DEC_MPLS_TTL:
return factory().actions().decMplsTtl();
case VLAN_POP:
return factory().actions().popVlan();
case VLAN_PUSH:
PushHeaderInstructions pushVlanInstruction = (PushHeaderInstructions) l2m;
return factory().actions().pushVlan(
EthType.of(pushVlanInstruction.ethernetType().toShort()));
case TUNNEL_ID:
ModTunnelIdInstruction tunnelId = (ModTunnelIdInstruction) l2m;
oxm = factory().oxms().tunnelId(U64.of(tunnelId.tunnelId()));
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;
Ip6Address ip6;
OFOxm oxm = null;
switch (l3m.subtype()) {
case IPV4_SRC:
ip = (ModIPInstruction) i;
ip4 = ip.ip().getIp4Address();
oxm = factory().oxms().ipv4Src(IPv4Address.of(ip4.toInt()));
break;
case IPV4_DST:
ip = (ModIPInstruction) i;
ip4 = ip.ip().getIp4Address();
oxm = factory().oxms().ipv4Dst(IPv4Address.of(ip4.toInt()));
break;
case IPV6_SRC:
ip = (ModIPInstruction) i;
ip6 = ip.ip().getIp6Address();
oxm = factory().oxms().ipv6Src(IPv6Address.of(ip6.toOctets()));
break;
case IPV6_DST:
ip = (ModIPInstruction) i;
ip6 = ip.ip().getIp6Address();
oxm = factory().oxms().ipv6Dst(IPv6Address.of(ip6.toOctets()));
break;
case IPV6_FLABEL:
ModIPv6FlowLabelInstruction flowLabelInstruction =
(ModIPv6FlowLabelInstruction) i;
int flowLabel = flowLabelInstruction.flowLabel();
oxm = factory().oxms().ipv6Flabel(IPv6FlowLabel.of(flowLabel));
break;
case ARP_SPA:
ModArpIPInstruction aip = (ModArpIPInstruction) i;
ip4 = aip.ip().getIp4Address();
oxm = factory().oxms().arpSpa(IPv4Address.of(ip4.toInt()));
break;
case ARP_SHA:
ModArpEthInstruction ei = (ModArpEthInstruction) i;
oxm = factory().oxms().arpSha(MacAddress.of(ei.mac().toLong()));
break;
case ARP_OP:
ModArpOpInstruction oi = (ModArpOpInstruction) i;
oxm = factory().oxms().arpOp(ArpOpcode.of((int) oi.op()));
break;
case DEC_TTL:
return factory().actions().decNwTtl();
case TTL_IN:
return factory().actions().copyTtlIn();
case TTL_OUT:
return factory().actions().copyTtlOut();
default:
log.warn("Unimplemented action type {}.", l3m.subtype());
break;
}
if (oxm != null) {
return factory().actions().buildSetField().setField(oxm).build();
}
return null;
}
private OFAction buildL4Modification(Instruction i) {
L4ModificationInstruction l4m = (L4ModificationInstruction) i;
ModTransportPortInstruction tp;
OFOxm oxm = null;
switch (l4m.subtype()) {
case TCP_SRC:
tp = (ModTransportPortInstruction) l4m;
oxm = factory().oxms().tcpSrc(TransportPort.of(tp.port().toInt()));
break;
case TCP_DST:
tp = (ModTransportPortInstruction) l4m;
oxm = factory().oxms().tcpDst(TransportPort.of(tp.port().toInt()));
break;
case UDP_SRC:
tp = (ModTransportPortInstruction) l4m;
oxm = factory().oxms().udpSrc(TransportPort.of(tp.port().toInt()));
break;
case UDP_DST:
tp = (ModTransportPortInstruction) l4m;
oxm = factory().oxms().udpDst(TransportPort.of(tp.port().toInt()));
break;
default:
log.warn("Unimplemented action type {}.", l4m.subtype());
break;
}
if (oxm != null) {
return factory().actions().buildSetField().setField(oxm).build();
}
return null;
}
private OFAction buildExtensionAction(ExtensionTreatment i) {
if (!driverService.isPresent()) {
log.error("No driver service present");
return null;
}
Driver driver = driverService.get().getDriver(deviceId);
if (driver.hasBehaviour(ExtensionTreatmentInterpreter.class)) {
DefaultDriverHandler handler =
new DefaultDriverHandler(new DefaultDriverData(driver, deviceId));
ExtensionTreatmentInterpreter interpreter = handler.behaviour(ExtensionTreatmentInterpreter.class);
return interpreter.mapInstruction(factory(), i);
}
return null;
}
}
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