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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.driver.handshaker;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import org.onosproject.net.Device;
import org.onosproject.openflow.controller.OpenFlowOpticalSwitch;
import org.onosproject.openflow.controller.PortDescPropertyType;
import org.onosproject.openflow.controller.driver.AbstractOpenFlowSwitch;
import org.onosproject.openflow.controller.driver.SwitchDriverSubHandshakeAlreadyStarted;
import org.onosproject.openflow.controller.driver.SwitchDriverSubHandshakeCompleted;
import org.onosproject.openflow.controller.driver.SwitchDriverSubHandshakeNotStarted;
import org.projectfloodlight.openflow.protocol.OFCalientFlowStatsRequest;
import org.projectfloodlight.openflow.protocol.OFCalientPortDescStatsEntry;
import org.projectfloodlight.openflow.protocol.OFCalientPortDescStatsReply;
import org.projectfloodlight.openflow.protocol.OFCalientPortDescStatsRequest;
import org.projectfloodlight.openflow.protocol.OFFlowStatsRequest;
import org.projectfloodlight.openflow.protocol.OFMessage;
import org.projectfloodlight.openflow.protocol.OFObject;
import org.projectfloodlight.openflow.protocol.OFStatsReplyFlags;
import org.projectfloodlight.openflow.protocol.OFStatsRequest;
import org.projectfloodlight.openflow.protocol.OFType;
import org.projectfloodlight.openflow.types.OFPort;
import org.projectfloodlight.openflow.types.TableId;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
public class CalientFiberSwitchHandshaker extends AbstractOpenFlowSwitch implements OpenFlowOpticalSwitch {
private final AtomicBoolean driverHandshakeComplete = new AtomicBoolean(false);
private List<OFCalientPortDescStatsEntry> fiberPorts = new ArrayList<>();
@Override
public Boolean supportNxRole() {
return false;
}
@Override
public void startDriverHandshake() {
log.warn("Starting driver handshake for sw {}", getStringId());
if (startDriverHandshakeCalled) {
throw new SwitchDriverSubHandshakeAlreadyStarted();
}
startDriverHandshakeCalled = true;
try {
sendHandshakeOFExperimenterPortDescRequest();
} catch (IOException e) {
log.error("Exception while sending experimenter port desc:", e.getMessage());
e.printStackTrace();
}
}
private void sendHandshakeOFExperimenterPortDescRequest() throws IOException {
// send multi part message for port description for optical switches
OFCalientPortDescStatsRequest portsRequest = factory()
.buildCalientPortDescStatsRequest()
.build();
log.warn("Sending experimenter port description message {}",
portsRequest.toString());
this.sendHandshakeMessage(portsRequest);
}
@Override
public boolean isDriverHandshakeComplete() {
return driverHandshakeComplete.get();
}
@Override
public void processDriverHandshakeMessage(OFMessage m) {
if (!startDriverHandshakeCalled) {
throw new SwitchDriverSubHandshakeNotStarted();
}
if (driverHandshakeComplete.get()) {
throw new SwitchDriverSubHandshakeCompleted(m);
}
switch (m.getType()) {
case BARRIER_REPLY:
break;
case ERROR:
log.error("Switch Error {} {}", getStringId(), m);
break;
case FEATURES_REPLY:
break;
case FLOW_REMOVED:
break;
case GET_ASYNC_REPLY:
break;
case PACKET_IN:
break;
case PORT_STATUS:
break;
case QUEUE_GET_CONFIG_REPLY:
break;
case ROLE_REPLY:
break;
case STATS_REPLY:
log.warn("Received port desc reply");
OFCalientPortDescStatsReply descStatsReply = (OFCalientPortDescStatsReply) m;
fiberPorts.addAll(descStatsReply.getPortDesc());
// Multi-part message
if (!descStatsReply.getFlags().contains(OFStatsReplyFlags.REPLY_MORE)) {
driverHandshakeComplete.set(true);
}
break;
default:
log.warn("Received message {} during switch-driver " +
"subhandshake " + "from switch {} ... " +
"Ignoring message", m,
getStringId());
}
}
@Override
public Device.Type deviceType() {
return Device.Type.FIBER_SWITCH;
}
@Override
public List<? extends OFObject> getPortsOf(PortDescPropertyType type) {
return ImmutableList.copyOf(fiberPorts);
}
@Override
public Set<PortDescPropertyType> getPortTypes() {
return ImmutableSet.of(PortDescPropertyType.OPTICAL_TRANSPORT);
}
@Override
public final void sendMsg(OFMessage m) {
OFMessage newMsg = m;
if (m.getType() == OFType.STATS_REQUEST) {
OFStatsRequest sr = (OFStatsRequest) m;
log.debug("Rebuilding stats request type {}", sr.getStatsType());
switch (sr.getStatsType()) {
case FLOW:
OFCalientFlowStatsRequest request = this.factory().buildCalientFlowStatsRequest()
.setCookie(((OFFlowStatsRequest) sr).getCookie())
.setCookieMask(((OFFlowStatsRequest) sr).getCookieMask())
.setMatch(this.factory().matchWildcardAll())
.setOutGroup(((OFFlowStatsRequest) sr).getOutGroup().getGroupNumber())
.setOutPort(OFPort.ANY)
.setTableId(TableId.ALL)
.setXid(sr.getXid())
.setFlags(sr.getFlags())
.build();
newMsg = request;
break;
case PORT:
// TODO
break;
default:
break;
}
}
super.sendMsg(newMsg);
}
}
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