| /* |
| * Copyright 2016-present Open Networking Foundation |
| * |
| * 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.openstacknetworking.impl; |
| |
| import com.google.common.base.Strings; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.packet.VlanId; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.LeadershipService; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.device.DeviceService; |
| 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.openstacknetworking.api.Constants; |
| import org.onosproject.openstacknetworking.api.InstancePort; |
| import org.onosproject.openstacknetworking.api.InstancePortService; |
| import org.onosproject.openstacknetworking.api.OpenstackFlowRuleService; |
| import org.onosproject.openstacknetworking.api.OpenstackNetworkService; |
| import org.onosproject.openstacknetworking.api.OpenstackRouterEvent; |
| import org.onosproject.openstacknetworking.api.OpenstackRouterListener; |
| import org.onosproject.openstacknetworking.api.OpenstackRouterService; |
| import org.onosproject.openstacknode.api.OpenstackNode; |
| import org.onosproject.openstacknode.api.OpenstackNodeEvent; |
| import org.onosproject.openstacknode.api.OpenstackNodeListener; |
| import org.onosproject.openstacknode.api.OpenstackNodeService; |
| import org.openstack4j.model.network.NetFloatingIP; |
| import org.openstack4j.model.network.Network; |
| import org.openstack4j.model.network.NetworkType; |
| import org.openstack4j.model.network.Port; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Objects; |
| import java.util.concurrent.ExecutorService; |
| |
| import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.openstacknetworking.api.Constants.GW_COMMON_TABLE; |
| import static org.onosproject.openstacknetworking.api.Constants.OPENSTACK_NETWORKING_APP_ID; |
| import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_FLOATING_EXTERNAL; |
| import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_FLOATING_INTERNAL; |
| import static org.onosproject.openstacknetworking.impl.RulePopulatorUtil.buildExtension; |
| import static org.onosproject.openstacknode.api.OpenstackNode.NodeType.GATEWAY; |
| |
| /** |
| * Handles OpenStack floating IP events. |
| */ |
| @Component(immediate = true) |
| public class OpenstackRoutingFloatingIpHandler { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private static final String ERR_FLOW = "Failed set flows for floating IP %s: "; |
| private static final String ERR_UNSUPPORTED_NET_TYPE = "Unsupported network type"; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected LeadershipService leadershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ClusterService clusterService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenstackNodeService osNodeService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected InstancePortService instancePortService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenstackRouterService osRouterService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenstackNetworkService osNetworkService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenstackFlowRuleService osFlowRuleService; |
| |
| private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| private final OpenstackRouterListener floatingIpLisener = new InternalFloatingIpListener(); |
| private final OpenstackNodeListener osNodeListener = new InternalNodeListener(); |
| |
| private ApplicationId appId; |
| private NodeId localNodeId; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(OPENSTACK_NETWORKING_APP_ID); |
| localNodeId = clusterService.getLocalNode().id(); |
| leadershipService.runForLeadership(appId.name()); |
| osRouterService.addListener(floatingIpLisener); |
| osNodeService.addListener(osNodeListener); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| osNodeService.removeListener(osNodeListener); |
| osRouterService.removeListener(floatingIpLisener); |
| leadershipService.withdraw(appId.name()); |
| eventExecutor.shutdown(); |
| |
| log.info("Stopped"); |
| } |
| |
| private void setFloatingIpRules(NetFloatingIP floatingIp, Port osPort, |
| boolean install) { |
| Network osNet = osNetworkService.network(osPort.getNetworkId()); |
| if (osNet == null) { |
| final String error = String.format(ERR_FLOW + "no network(%s) exists", |
| floatingIp.getFloatingIpAddress(), |
| osPort.getNetworkId()); |
| throw new IllegalStateException(error); |
| } |
| |
| MacAddress srcMac = MacAddress.valueOf(osPort.getMacAddress()); |
| InstancePort instPort = instancePortService.instancePort(srcMac); |
| if (instPort == null) { |
| final String error = String.format(ERR_FLOW + "no host(MAC:%s) found", |
| floatingIp.getFloatingIpAddress(), srcMac); |
| throw new IllegalStateException(error); |
| } |
| |
| setDownstreamRules(floatingIp, osNet, instPort, install); |
| setUpstreamRules(floatingIp, osNet, instPort, install); |
| } |
| |
| private void setDownstreamRules(NetFloatingIP floatingIp, Network osNet, |
| InstancePort instPort, boolean install) { |
| OpenstackNode cNode = osNodeService.node(instPort.deviceId()); |
| if (cNode == null) { |
| final String error = String.format("Cannot find openstack node for device %s", |
| instPort.deviceId()); |
| throw new IllegalStateException(error); |
| } |
| if (osNet.getNetworkType() == NetworkType.VXLAN && cNode.dataIp() == null) { |
| final String error = String.format(ERR_FLOW + |
| "VXLAN mode is not ready for %s", floatingIp, cNode.hostname()); |
| throw new IllegalStateException(error); |
| } |
| if (osNet.getNetworkType() == NetworkType.VLAN && cNode.vlanIntf() == null) { |
| final String error = String.format(ERR_FLOW + |
| "VLAN mode is not ready for %s", floatingIp, cNode.hostname()); |
| throw new IllegalStateException(error); |
| } |
| |
| IpAddress floating = IpAddress.valueOf(floatingIp.getFloatingIpAddress()); |
| TrafficSelector externalSelector = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPDst(floating.toIpPrefix()) |
| .build(); |
| |
| osNodeService.completeNodes(GATEWAY).forEach(gNode -> { |
| TrafficTreatment.Builder externalBuilder = DefaultTrafficTreatment.builder() |
| .setEthSrc(Constants.DEFAULT_GATEWAY_MAC) |
| .setEthDst(instPort.macAddress()) |
| .setIpDst(instPort.ipAddress().getIp4Address()); |
| |
| switch (osNet.getNetworkType()) { |
| case VXLAN: |
| externalBuilder.setTunnelId(Long.valueOf(osNet.getProviderSegID())) |
| .extension(buildExtension( |
| deviceService, |
| gNode.intgBridge(), |
| cNode.dataIp().getIp4Address()), |
| gNode.intgBridge()) |
| .setOutput(gNode.tunnelPortNum()); |
| break; |
| case VLAN: |
| externalBuilder.pushVlan() |
| .setVlanId(VlanId.vlanId(osNet.getProviderSegID())) |
| .setOutput(gNode.vlanPortNum()); |
| break; |
| default: |
| final String error = String.format(ERR_UNSUPPORTED_NET_TYPE + "%s", |
| osNet.getNetworkType()); |
| throw new IllegalStateException(error); |
| } |
| |
| osFlowRuleService.setRule( |
| appId, |
| gNode.intgBridge(), |
| externalSelector, |
| externalBuilder.build(), |
| PRIORITY_FLOATING_EXTERNAL, |
| GW_COMMON_TABLE, |
| install); |
| |
| // access from one VM to the others via floating IP |
| TrafficSelector internalSelector = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPDst(floating.toIpPrefix()) |
| .matchInPort(gNode.tunnelPortNum()) |
| .build(); |
| |
| TrafficTreatment.Builder internalBuilder = DefaultTrafficTreatment.builder() |
| .setEthSrc(Constants.DEFAULT_GATEWAY_MAC) |
| .setEthDst(instPort.macAddress()) |
| .setIpDst(instPort.ipAddress().getIp4Address()); |
| |
| switch (osNet.getNetworkType()) { |
| case VXLAN: |
| internalBuilder.setTunnelId(Long.valueOf(osNet.getProviderSegID())) |
| .extension(buildExtension( |
| deviceService, |
| gNode.intgBridge(), |
| cNode.dataIp().getIp4Address()), |
| gNode.intgBridge()) |
| .setOutput(PortNumber.IN_PORT); |
| break; |
| case VLAN: |
| internalBuilder.pushVlan() |
| .setVlanId(VlanId.vlanId(osNet.getProviderSegID())) |
| .setOutput(PortNumber.IN_PORT); |
| break; |
| default: |
| final String error = String.format(ERR_UNSUPPORTED_NET_TYPE + "%s", |
| osNet.getNetworkType()); |
| throw new IllegalStateException(error); |
| } |
| |
| osFlowRuleService.setRule( |
| appId, |
| gNode.intgBridge(), |
| internalSelector, |
| internalBuilder.build(), |
| PRIORITY_FLOATING_INTERNAL, |
| GW_COMMON_TABLE, |
| install); |
| }); |
| } |
| |
| private void setUpstreamRules(NetFloatingIP floatingIp, Network osNet, |
| InstancePort instPort, boolean install) { |
| IpAddress floating = IpAddress.valueOf(floatingIp.getFloatingIpAddress()); |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPSrc(instPort.ipAddress().toIpPrefix()); |
| |
| switch (osNet.getNetworkType()) { |
| case VXLAN: |
| sBuilder.matchTunnelId(Long.valueOf(osNet.getProviderSegID())); |
| break; |
| case VLAN: |
| sBuilder.matchVlanId(VlanId.vlanId(osNet.getProviderSegID())); |
| break; |
| default: |
| final String error = String.format(ERR_UNSUPPORTED_NET_TYPE + "%s", |
| osNet.getNetworkType()); |
| throw new IllegalStateException(error); |
| } |
| |
| osNodeService.completeNodes(GATEWAY).forEach(gNode -> { |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| .setIpSrc(floating.getIp4Address()) |
| .setEthSrc(Constants.DEFAULT_GATEWAY_MAC) |
| .setEthDst(Constants.DEFAULT_EXTERNAL_ROUTER_MAC); |
| |
| if (osNet.getNetworkType().equals(NetworkType.VLAN)) { |
| tBuilder.popVlan(); |
| } |
| |
| osFlowRuleService.setRule( |
| appId, |
| gNode.intgBridge(), |
| sBuilder.build(), |
| tBuilder.setOutput(gNode.patchPortNum()).build(), |
| PRIORITY_FLOATING_EXTERNAL, |
| GW_COMMON_TABLE, |
| install); |
| }); |
| } |
| |
| private class InternalFloatingIpListener implements OpenstackRouterListener { |
| |
| @Override |
| public boolean isRelevant(OpenstackRouterEvent event) { |
| // do not allow to proceed without leadership |
| NodeId leader = leadershipService.getLeader(appId.name()); |
| if (!Objects.equals(localNodeId, leader)) { |
| return false; |
| } |
| return event.floatingIp() != null; |
| } |
| |
| @Override |
| public void event(OpenstackRouterEvent event) { |
| switch (event.type()) { |
| case OPENSTACK_FLOATING_IP_ASSOCIATED: |
| eventExecutor.execute(() -> { |
| NetFloatingIP osFip = event.floatingIp(); |
| associateFloatingIp(osFip); |
| log.info("Associated floating IP {}:{}", |
| osFip.getFloatingIpAddress(), osFip.getFixedIpAddress()); |
| }); |
| break; |
| case OPENSTACK_FLOATING_IP_DISASSOCIATED: |
| eventExecutor.execute(() -> { |
| NetFloatingIP osFip = event.floatingIp(); |
| disassociateFloatingIp(osFip, event.portId()); |
| log.info("Disassociated floating IP {}:{}", |
| osFip.getFloatingIpAddress(), osFip.getFixedIpAddress()); |
| }); |
| break; |
| case OPENSTACK_FLOATING_IP_REMOVED: |
| eventExecutor.execute(() -> { |
| NetFloatingIP osFip = event.floatingIp(); |
| if (!Strings.isNullOrEmpty(osFip.getPortId())) { |
| disassociateFloatingIp(osFip, osFip.getPortId()); |
| } |
| log.info("Removed floating IP {}", osFip.getFloatingIpAddress()); |
| }); |
| break; |
| case OPENSTACK_FLOATING_IP_CREATED: |
| eventExecutor.execute(() -> { |
| NetFloatingIP osFip = event.floatingIp(); |
| if (!Strings.isNullOrEmpty(osFip.getPortId())) { |
| associateFloatingIp(event.floatingIp()); |
| } |
| log.info("Created floating IP {}", osFip.getFloatingIpAddress()); |
| }); |
| break; |
| case OPENSTACK_FLOATING_IP_UPDATED: |
| case OPENSTACK_ROUTER_CREATED: |
| case OPENSTACK_ROUTER_UPDATED: |
| case OPENSTACK_ROUTER_REMOVED: |
| case OPENSTACK_ROUTER_INTERFACE_ADDED: |
| case OPENSTACK_ROUTER_INTERFACE_UPDATED: |
| case OPENSTACK_ROUTER_INTERFACE_REMOVED: |
| default: |
| // do nothing for the other events |
| break; |
| } |
| } |
| |
| private void associateFloatingIp(NetFloatingIP osFip) { |
| Port osPort = osNetworkService.port(osFip.getPortId()); |
| if (osPort == null) { |
| final String error = String.format(ERR_FLOW + "port(%s) not found", |
| osFip.getFloatingIpAddress(), osFip.getPortId()); |
| throw new IllegalStateException(error); |
| } |
| // set floating IP rules only if the port is associated to a VM |
| if (!Strings.isNullOrEmpty(osPort.getDeviceId())) { |
| setFloatingIpRules(osFip, osPort, true); |
| } |
| } |
| |
| private void disassociateFloatingIp(NetFloatingIP osFip, String portId) { |
| Port osPort = osNetworkService.port(portId); |
| if (osPort == null) { |
| // FIXME when a port with floating IP removed without |
| // disassociation step, it can reach here |
| return; |
| } |
| // set floating IP rules only if the port is associated to a VM |
| if (!Strings.isNullOrEmpty(osPort.getDeviceId())) { |
| setFloatingIpRules(osFip, osPort, false); |
| } |
| } |
| } |
| |
| private class InternalNodeListener implements OpenstackNodeListener { |
| |
| @Override |
| public boolean isRelevant(OpenstackNodeEvent event) { |
| // do not allow to proceed without leadership |
| NodeId leader = leadershipService.getLeader(appId.name()); |
| if (!Objects.equals(localNodeId, leader)) { |
| return false; |
| } |
| return event.subject().type() == GATEWAY; |
| } |
| |
| @Override |
| public void event(OpenstackNodeEvent event) { |
| |
| switch (event.type()) { |
| case OPENSTACK_NODE_COMPLETE: |
| eventExecutor.execute(() -> { |
| for (NetFloatingIP fip : osRouterService.floatingIps()) { |
| if (Strings.isNullOrEmpty(fip.getPortId())) { |
| continue; |
| } |
| Port osPort = osNetworkService.port(fip.getPortId()); |
| if (osPort == null) { |
| log.warn("Failed to set floating IP {}", fip.getId()); |
| continue; |
| } |
| setFloatingIpRules(fip, osPort, true); |
| } |
| }); |
| break; |
| case OPENSTACK_NODE_CREATED: |
| case OPENSTACK_NODE_UPDATED: |
| case OPENSTACK_NODE_REMOVED: |
| case OPENSTACK_NODE_INCOMPLETE: |
| default: |
| // do nothing |
| break; |
| } |
| } |
| } |
| } |