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/*
* 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.vtn.table.impl;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_SET_TUNNEL_DST;
import static org.slf4j.LoggerFactory.getLogger;
import org.onlab.osgi.DefaultServiceDirectory;
import org.onlab.osgi.ServiceDirectory;
import org.onlab.packet.Ip4Address;
import org.onlab.packet.IpAddress;
import org.onlab.packet.MacAddress;
import org.onosproject.core.ApplicationId;
import org.onosproject.core.DefaultGroupId;
import org.onosproject.net.DeviceId;
import org.onosproject.net.PortNumber;
import org.onosproject.net.behaviour.ExtensionTreatmentResolver;
import org.onosproject.net.driver.DriverHandler;
import org.onosproject.net.driver.DriverService;
import org.onosproject.net.flow.DefaultTrafficSelector;
import org.onosproject.net.flow.DefaultTrafficTreatment;
import org.onosproject.net.flow.TrafficSelector;
import org.onosproject.net.flow.TrafficTreatment;
import org.onosproject.net.flow.TrafficTreatment.Builder;
import org.onosproject.net.flow.criteria.Criteria;
import org.onosproject.net.flow.instructions.ExtensionTreatment;
import org.onosproject.net.flowobjective.DefaultForwardingObjective;
import org.onosproject.net.flowobjective.FlowObjectiveService;
import org.onosproject.net.flowobjective.ForwardingObjective;
import org.onosproject.net.flowobjective.ForwardingObjective.Flag;
import org.onosproject.net.flowobjective.Objective;
import org.onosproject.vtn.table.L2ForwardService;
import org.onosproject.vtnrsc.SegmentationId;
import org.slf4j.Logger;
import com.google.common.collect.Sets;
/**
* Provides implementation of L2ForwardService.
*/
public final class L2ForwardServiceImpl implements L2ForwardService {
private final Logger log = getLogger(getClass());
private static final int MAC_PRIORITY = 0xffff;
public static final Integer GROUP_ID = 1;
private final FlowObjectiveService flowObjectiveService;
private final ApplicationId appId;
private final DriverService driverService;
/**
* Constructor.
*
* @param appId the application id of vtn
*/
public L2ForwardServiceImpl(ApplicationId appId) {
this.appId = checkNotNull(appId, "ApplicationId can not be null");
ServiceDirectory serviceDirectory = new DefaultServiceDirectory();
this.flowObjectiveService = serviceDirectory.get(FlowObjectiveService.class);
this.driverService = serviceDirectory.get(DriverService.class);
}
@Override
public void programLocalBcastRules(DeviceId deviceId,
SegmentationId segmentationId,
PortNumber inPort,
Iterable<PortNumber> localVmPorts,
Iterable<PortNumber> localTunnelPorts,
Objective.Operation type) {
if (localVmPorts == null || localTunnelPorts == null) {
log.info("No other host port and tunnel in the device");
return;
}
Sets.newHashSet(localVmPorts).stream().forEach(lp -> {
TrafficSelector selector = DefaultTrafficSelector.builder()
.matchInPort(lp).matchEthDst(MacAddress.BROADCAST)
.add(Criteria.matchTunnelId(Long
.parseLong(segmentationId.toString())))
.build();
TrafficTreatment.Builder treatment = DefaultTrafficTreatment
.builder();
boolean flag = false;
for (PortNumber outPort : localVmPorts) {
flag = true;
if (outPort != lp) {
treatment.setOutput(outPort);
}
}
if (type.equals(Objective.Operation.REMOVE) && inPort == lp) {
flag = false;
}
treatment.group(new DefaultGroupId(GROUP_ID));
ForwardingObjective.Builder objective = DefaultForwardingObjective
.builder().withTreatment(treatment.build())
.withSelector(selector).fromApp(appId).makePermanent()
.withFlag(Flag.SPECIFIC).withPriority(MAC_PRIORITY);
if (flag) {
flowObjectiveService.forward(deviceId, objective.add());
} else {
flowObjectiveService.forward(deviceId, objective.remove());
}
});
}
@Override
public void programTunnelBcastRules(DeviceId deviceId,
SegmentationId segmentationId,
Iterable<PortNumber> localVmPorts,
Iterable<PortNumber> localTunnelPorts,
Objective.Operation type) {
if (localVmPorts == null || localTunnelPorts == null) {
log.info("No other host port or tunnel ports in the device");
return;
}
Sets.newHashSet(localTunnelPorts).stream().forEach(tp -> {
TrafficSelector selector = DefaultTrafficSelector.builder()
.matchInPort(tp)
.add(Criteria.matchTunnelId(Long
.parseLong(segmentationId.toString())))
.matchEthDst(MacAddress.BROADCAST).build();
TrafficTreatment.Builder treatment = DefaultTrafficTreatment
.builder();
for (PortNumber outPort : localVmPorts) {
treatment.setOutput(outPort);
}
ForwardingObjective.Builder objective = DefaultForwardingObjective
.builder().withTreatment(treatment.build())
.withSelector(selector).fromApp(appId).makePermanent()
.withFlag(Flag.SPECIFIC).withPriority(MAC_PRIORITY);
if (type.equals(Objective.Operation.ADD)) {
if (Sets.newHashSet(localVmPorts).size() == 0) {
flowObjectiveService.forward(deviceId, objective.remove());
} else {
flowObjectiveService.forward(deviceId, objective.add());
}
} else {
flowObjectiveService.forward(deviceId, objective.remove());
}
});
}
@Override
public void programLocalOut(DeviceId deviceId,
SegmentationId segmentationId,
PortNumber outPort, MacAddress sourceMac,
Objective.Operation type) {
TrafficSelector selector = DefaultTrafficSelector.builder()
.matchTunnelId(Long.parseLong(segmentationId.toString()))
.matchEthDst(sourceMac).build();
TrafficTreatment treatment = DefaultTrafficTreatment.builder()
.setOutput(outPort).build();
ForwardingObjective.Builder objective = DefaultForwardingObjective
.builder().withTreatment(treatment).withSelector(selector)
.fromApp(appId).withFlag(Flag.SPECIFIC)
.withPriority(MAC_PRIORITY);
if (type.equals(Objective.Operation.ADD)) {
flowObjectiveService.forward(deviceId, objective.add());
} else {
flowObjectiveService.forward(deviceId, objective.remove());
}
}
@Override
public void programTunnelOut(DeviceId deviceId,
SegmentationId segmentationId,
PortNumber tunnelOutPort, MacAddress dstMac,
Objective.Operation type, IpAddress ipAddress) {
TrafficSelector selector = DefaultTrafficSelector.builder()
.matchEthDst(dstMac).add(Criteria.matchTunnelId(Long
.parseLong(segmentationId.toString())))
.build();
DriverHandler handler = driverService.createHandler(deviceId);
ExtensionTreatmentResolver resolver = handler.behaviour(ExtensionTreatmentResolver.class);
ExtensionTreatment treatment = resolver.getExtensionInstruction(NICIRA_SET_TUNNEL_DST.type());
try {
treatment.setPropertyValue("tunnelDst", Ip4Address.valueOf(ipAddress.toString()));
} catch (Exception e) {
log.error("Failed to get extension instruction to set tunnel dst {}", deviceId);
}
Builder builder = DefaultTrafficTreatment.builder();
builder.extension(treatment, deviceId)
.setOutput(tunnelOutPort).build();
ForwardingObjective.Builder objective = DefaultForwardingObjective
.builder().withTreatment(builder.build()).withSelector(selector)
.fromApp(appId).withFlag(Flag.SPECIFIC)
.withPriority(MAC_PRIORITY);
if (type.equals(Objective.Operation.ADD)) {
flowObjectiveService.forward(deviceId, objective.add());
} else {
flowObjectiveService.forward(deviceId, objective.remove());
}
}
}
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