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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.ovsdb;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import org.onlab.packet.IpAddress;
import org.onosproject.net.DefaultAnnotations;
import org.onosproject.net.DeviceId;
import org.onosproject.net.behaviour.BridgeName;
import org.onosproject.net.behaviour.DefaultTunnelDescription;
import org.onosproject.net.behaviour.IpTunnelEndPoint;
import org.onosproject.net.behaviour.TunnelConfig;
import org.onosproject.net.behaviour.TunnelDescription;
import org.onosproject.net.behaviour.TunnelName;
import org.onosproject.net.driver.AbstractHandlerBehaviour;
import org.onosproject.net.driver.DriverHandler;
import org.onosproject.ovsdb.controller.OvsdbClientService;
import org.onosproject.ovsdb.controller.OvsdbController;
import org.onosproject.ovsdb.controller.OvsdbNodeId;
import org.onosproject.ovsdb.controller.OvsdbTunnel;
/**
* OVSDB-based implementation of tunnel config behaviour.
*/
public class OvsdbTunnelConfig extends AbstractHandlerBehaviour
implements TunnelConfig {
private static final String DEFAULT_ADDRESS = "0.0.0.0";
private static final String OPTION_LOCAL_IP = "local_ip";
private static final String OPTION_REMOTE_IP = "remote_ip";
@Override
public void createTunnel(TunnelDescription tunnel) {
DriverHandler handler = handler();
OvsdbClientService ovsdbNode = getOvsdbNode(handler);
IpTunnelEndPoint ipSrc = IpTunnelEndPoint.ipTunnelPoint(IpAddress
.valueOf(DEFAULT_ADDRESS));
IpTunnelEndPoint ipDst = IpTunnelEndPoint.ipTunnelPoint(IpAddress
.valueOf(DEFAULT_ADDRESS));
if (tunnel.src() instanceof IpTunnelEndPoint) {
ipSrc = (IpTunnelEndPoint) tunnel.src();
}
if (tunnel.dst() instanceof IpTunnelEndPoint) {
ipDst = (IpTunnelEndPoint) tunnel.dst();
}
//Even if source point ip or destination point ip equals 0:0:0:0, it is still work-in-progress.
ovsdbNode.createTunnel(ipSrc.ip(), ipDst.ip());
}
@Override
public boolean createTunnelInterface(BridgeName bridgeName, TunnelDescription tunnel) {
Map<String, String> options = ((DefaultAnnotations) tunnel.annotations()).asMap();
if (tunnel.src() != null) {
options.put(OPTION_LOCAL_IP, ((IpTunnelEndPoint) tunnel.src()).ip().toString());
}
if (tunnel.dst() != null) {
options.put(OPTION_REMOTE_IP, ((IpTunnelEndPoint) tunnel.dst()).ip().toString());
}
DriverHandler handler = handler();
OvsdbClientService ovsdbClient = getOvsdbNode(handler);
return ovsdbClient.createTunnel(bridgeName.name(), tunnel.tunnelName().toString(),
tunnel.type().toString().toLowerCase(), options);
}
@Override
public void removeTunnel(TunnelDescription tunnel) {
DriverHandler handler = handler();
OvsdbClientService ovsdbNode = getOvsdbNode(handler);
IpTunnelEndPoint ipSrc = IpTunnelEndPoint.ipTunnelPoint(IpAddress
.valueOf(DEFAULT_ADDRESS));
IpTunnelEndPoint ipDst = IpTunnelEndPoint.ipTunnelPoint(IpAddress
.valueOf(DEFAULT_ADDRESS));
if (tunnel.src() instanceof IpTunnelEndPoint) {
ipSrc = (IpTunnelEndPoint) tunnel.src();
}
if (tunnel.dst() instanceof IpTunnelEndPoint) {
ipDst = (IpTunnelEndPoint) tunnel.dst();
}
//Even if source point ip or destination point ip equals 0:0:0:0, it is still work-in-progress.
ovsdbNode.dropTunnel(ipSrc.ip(), ipDst.ip());
}
@Override
public void updateTunnel(TunnelDescription tunnel) {
// TODO Auto-generated method stub
}
@Override
public Collection<TunnelDescription> getTunnels() {
DriverHandler handler = handler();
OvsdbClientService ovsdbNode = getOvsdbNode(handler);
Set<OvsdbTunnel> tunnels = ovsdbNode.getTunnels();
return tunnels.stream()
.map(x ->
new DefaultTunnelDescription(
IpTunnelEndPoint.ipTunnelPoint(x.localIp()),
IpTunnelEndPoint.ipTunnelPoint(x.remoteIp()),
TunnelDescription.Type.VXLAN,
TunnelName.tunnelName(x.tunnelName().toString())
)
)
.collect(Collectors.toSet());
}
// OvsdbNodeId(IP) is used in the adaptor while DeviceId(ovsdb:IP)
// is used in the core. So DeviceId need be changed to OvsdbNodeId.
private OvsdbNodeId changeDeviceIdToNodeId(DeviceId deviceId) {
String[] splits = deviceId.toString().split(":");
if (splits == null || splits.length < 1) {
return null;
}
IpAddress ipAddress = IpAddress.valueOf(splits[1]);
return new OvsdbNodeId(ipAddress, 0);
}
private OvsdbClientService getOvsdbNode(DriverHandler handler) {
OvsdbController ovsController = handler.get(OvsdbController.class);
DeviceId deviceId = handler.data().deviceId();
OvsdbNodeId nodeId = changeDeviceIdToNodeId(deviceId);
return ovsController.getOvsdbClient(nodeId);
}
}
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