| /* |
| * 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 com.google.common.collect.Sets; |
| import org.onlab.packet.ARP; |
| import org.onlab.packet.EthType; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.Ip4Address; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.util.Tools; |
| import org.onosproject.cfg.ComponentConfigService; |
| import org.onosproject.cfg.ConfigProperty; |
| 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.mastership.MastershipService; |
| 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.net.packet.DefaultOutboundPacket; |
| import org.onosproject.net.packet.PacketContext; |
| import org.onosproject.net.packet.PacketProcessor; |
| import org.onosproject.net.packet.PacketService; |
| import org.onosproject.openstacknetworking.api.InstancePort; |
| import org.onosproject.openstacknetworking.api.InstancePortEvent; |
| import org.onosproject.openstacknetworking.api.InstancePortListener; |
| import org.onosproject.openstacknetworking.api.InstancePortService; |
| import org.onosproject.openstacknetworking.api.OpenstackFlowRuleService; |
| import org.onosproject.openstacknetworking.api.OpenstackNetworkEvent; |
| import org.onosproject.openstacknetworking.api.OpenstackNetworkListener; |
| import org.onosproject.openstacknetworking.api.OpenstackNetworkService; |
| 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.Network; |
| import org.openstack4j.model.network.NetworkType; |
| import org.openstack4j.model.network.Subnet; |
| import org.osgi.service.component.ComponentContext; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.component.annotations.Modified; |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Dictionary; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onosproject.openstacknetworking.api.Constants.ARP_BROADCAST_MODE; |
| import static org.onosproject.openstacknetworking.api.Constants.ARP_PROXY_MODE; |
| import static org.onosproject.openstacknetworking.api.Constants.DEFAULT_ARP_MODE_STR; |
| import static org.onosproject.openstacknetworking.api.Constants.DEFAULT_GATEWAY_MAC_STR; |
| import static org.onosproject.openstacknetworking.api.Constants.DHCP_ARP_TABLE; |
| import static org.onosproject.openstacknetworking.api.Constants.OPENSTACK_NETWORKING_APP_ID; |
| import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_ARP_CONTROL_RULE; |
| import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_ARP_GATEWAY_RULE; |
| import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_ARP_REPLY_RULE; |
| import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_ARP_REQUEST_RULE; |
| import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_ARP_SUBNET_RULE; |
| import static org.onosproject.openstacknetworking.api.InstancePort.State.ACTIVE; |
| import static org.onosproject.openstacknetworking.util.OpenstackNetworkingUtil.getPropertyValue; |
| import static org.onosproject.openstacknetworking.util.OpenstackNetworkingUtil.swapStaleLocation; |
| import static org.onosproject.openstacknetworking.util.RulePopulatorUtil.buildExtension; |
| import static org.onosproject.openstacknode.api.OpenstackNode.NodeType.COMPUTE; |
| |
| /** |
| * Handles ARP packet from VMs. |
| */ |
| @Component(immediate = true) |
| public final class OpenstackSwitchingArpHandler { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| private static final String GATEWAY_MAC = "gatewayMac"; |
| private static final String ARP_MODE = "arpMode"; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| PacketService packetService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| OpenstackFlowRuleService osFlowRuleService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| ComponentConfigService configService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| ClusterService clusterService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| LeadershipService leadershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| MastershipService mastershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| InstancePortService instancePortService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| OpenstackNetworkService osNetworkService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected OpenstackNodeService osNodeService; |
| |
| //@Property(name = GATEWAY_MAC, value = DEFAULT_GATEWAY_MAC_STR, |
| // label = "Fake MAC address for virtual network subnet gateway") |
| private String gatewayMac = DEFAULT_GATEWAY_MAC_STR; |
| |
| //@Property(name = ARP_MODE, value = DEFAULT_ARP_MODE_STR, |
| // label = "ARP processing mode, broadcast | proxy (default)") |
| protected String arpMode = DEFAULT_ARP_MODE_STR; |
| |
| private final InternalPacketProcessor packetProcessor = new InternalPacketProcessor(); |
| private final InternalOpenstackNetworkListener osNetworkListener = |
| new InternalOpenstackNetworkListener(); |
| private final InstancePortListener instancePortListener = new InternalInstancePortListener(); |
| private final OpenstackNodeListener osNodeListener = new InternalNodeEventListener(); |
| |
| |
| private ApplicationId appId; |
| private NodeId localNodeId; |
| |
| @Activate |
| void activate() { |
| appId = coreService.registerApplication(OPENSTACK_NETWORKING_APP_ID); |
| configService.registerProperties(getClass()); |
| localNodeId = clusterService.getLocalNode().id(); |
| osNetworkService.addListener(osNetworkListener); |
| osNodeService.addListener(osNodeListener); |
| leadershipService.runForLeadership(appId.name()); |
| packetService.addProcessor(packetProcessor, PacketProcessor.director(0)); |
| |
| instancePortService.addListener(instancePortListener); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| void deactivate() { |
| packetService.removeProcessor(packetProcessor); |
| osNetworkService.removeListener(osNetworkListener); |
| osNodeService.removeListener(osNodeListener); |
| instancePortService.removeListener(instancePortListener); |
| leadershipService.withdraw(appId.name()); |
| configService.unregisterProperties(getClass(), false); |
| |
| log.info("Stopped"); |
| } |
| |
| @Modified |
| void modified(ComponentContext context) { |
| readComponentConfiguration(context); |
| |
| log.info("Modified"); |
| } |
| |
| private String getArpMode() { |
| Set<ConfigProperty> properties = configService.getProperties(this.getClass().getName()); |
| return getPropertyValue(properties, ARP_MODE); |
| } |
| |
| /** |
| * Processes ARP request packets. |
| * It checks if the target IP is owned by a known host first and then ask to |
| * OpenStack if it's not. This ARP proxy does not support overlapping IP. |
| * |
| * @param context packet context |
| * @param ethPacket ethernet packet |
| */ |
| private void processPacketIn(PacketContext context, Ethernet ethPacket) { |
| |
| // if the ARP mode is configured as broadcast mode, we simply ignore ARP packet_in |
| if (ARP_BROADCAST_MODE.equals(getArpMode())) { |
| return; |
| } |
| |
| ARP arpPacket = (ARP) ethPacket.getPayload(); |
| if (arpPacket.getOpCode() != ARP.OP_REQUEST) { |
| return; |
| } |
| |
| InstancePort srcInstPort = instancePortService.instancePort(ethPacket.getSourceMAC()); |
| if (srcInstPort == null) { |
| log.trace("Failed to find source instance port(MAC:{})", |
| ethPacket.getSourceMAC()); |
| return; |
| } |
| |
| IpAddress targetIp = Ip4Address.valueOf(arpPacket.getTargetProtocolAddress()); |
| |
| MacAddress replyMac = gatewayIp(targetIp) ? MacAddress.valueOf(gatewayMac) : |
| getMacFromHostOpenstack(targetIp, srcInstPort.networkId()); |
| if (replyMac == MacAddress.NONE) { |
| log.trace("Failed to find MAC address for {}", targetIp); |
| return; |
| } |
| |
| Ethernet ethReply = ARP.buildArpReply( |
| targetIp.getIp4Address(), |
| replyMac, |
| ethPacket); |
| |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .setOutput(context.inPacket().receivedFrom().port()) |
| .build(); |
| |
| packetService.emit(new DefaultOutboundPacket( |
| context.inPacket().receivedFrom().deviceId(), |
| treatment, |
| ByteBuffer.wrap(ethReply.serialize()))); |
| } |
| |
| private boolean gatewayIp(IpAddress targetIp) { |
| return osNetworkService.subnets().stream() |
| .anyMatch(subnet -> subnet.getGateway().equals(targetIp.toString())); |
| } |
| |
| /** |
| * Returns MAC address of a host with a given target IP address by asking to |
| * instance port service. |
| * |
| * @param targetIp target ip |
| * @param osNetId openstack network id of the source instance port |
| * @return mac address, or none mac address if it fails to find the mac |
| */ |
| private MacAddress getMacFromHostOpenstack(IpAddress targetIp, String osNetId) { |
| checkNotNull(targetIp); |
| |
| InstancePort instPort = instancePortService.instancePort(targetIp, osNetId); |
| if (instPort != null) { |
| log.trace("Found MAC from host service for {}", targetIp); |
| return instPort.macAddress(); |
| } else { |
| return MacAddress.NONE; |
| } |
| } |
| |
| /** |
| * Installs flow rules which convert ARP request packet into ARP reply |
| * by adding a fake gateway MAC address as Source Hardware Address. |
| * |
| * @param osSubnet openstack subnet |
| * @param install flag which indicates whether to install rule or remove rule |
| */ |
| private void setFakeGatewayArpRule(Subnet osSubnet, boolean install, OpenstackNode osNode) { |
| |
| if (ARP_BROADCAST_MODE.equals(getArpMode())) { |
| String gateway = osSubnet.getGateway(); |
| |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| .matchArpOp(ARP.OP_REQUEST) |
| .matchArpTpa(Ip4Address.valueOf(gateway)) |
| .build(); |
| |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .setArpOp(ARP.OP_REPLY) |
| .setArpSha(MacAddress.valueOf(gatewayMac)) |
| .setArpSpa(Ip4Address.valueOf(gateway)) |
| .setOutput(PortNumber.IN_PORT) |
| .build(); |
| |
| if (osNode == null) { |
| osNodeService.completeNodes(COMPUTE).forEach(n -> |
| osFlowRuleService.setRule( |
| appId, |
| n.intgBridge(), |
| selector, |
| treatment, |
| PRIORITY_ARP_GATEWAY_RULE, |
| DHCP_ARP_TABLE, |
| install |
| ) |
| ); |
| } else { |
| osFlowRuleService.setRule( |
| appId, |
| osNode.intgBridge(), |
| selector, |
| treatment, |
| PRIORITY_ARP_GATEWAY_RULE, |
| DHCP_ARP_TABLE, |
| install |
| ); |
| } |
| |
| } |
| } |
| |
| /** |
| * Installs flow rules to match ARP request packets. |
| * |
| * @param port instance port |
| * @param install installation flag |
| */ |
| private void setArpRequestRule(InstancePort port, boolean install) { |
| NetworkType type = osNetworkService.network(port.networkId()).getNetworkType(); |
| |
| switch (type) { |
| case VXLAN: |
| setRemoteArpRequestRuleForVxlan(port, install); |
| break; |
| case VLAN: |
| // since VLAN ARP packet can be broadcasted to all hosts that connected with L2 network, |
| // there is no need to add any flow rules to handle ARP request |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * Installs flow rules to match ARP reply packets. |
| * |
| * @param port instance port |
| * @param install installation flag |
| */ |
| private void setArpReplyRule(InstancePort port, boolean install) { |
| NetworkType type = osNetworkService.network(port.networkId()).getNetworkType(); |
| |
| switch (type) { |
| case VXLAN: |
| setArpReplyRuleForVxlan(port, install); |
| break; |
| case VLAN: |
| setArpReplyRuleForVlan(port, install); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * Installs flow rules to match ARP request packets only for VxLAN. |
| * |
| * @param port instance port |
| * @param install installation flag |
| */ |
| private void setRemoteArpRequestRuleForVxlan(InstancePort port, boolean install) { |
| |
| OpenstackNode localNode = osNodeService.node(port.deviceId()); |
| |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| .matchArpOp(ARP.OP_REQUEST) |
| .matchArpTpa(port.ipAddress().getIp4Address()) |
| .build(); |
| |
| setRemoteArpTreatmentForVxlan(selector, port, localNode, install); |
| } |
| |
| /** |
| * Installs flow rules to match ARP reply packets only for VxLAN. |
| * |
| * @param port instance port |
| * @param install installation flag |
| */ |
| private void setArpReplyRuleForVxlan(InstancePort port, boolean install) { |
| |
| OpenstackNode localNode = osNodeService.node(port.deviceId()); |
| |
| TrafficSelector selector = setArpReplyRuleForVnet(port, install); |
| setRemoteArpTreatmentForVxlan(selector, port, localNode, install); |
| } |
| |
| /** |
| * Installs flow rules to match ARP reply packets only for VLAN. |
| * |
| * @param port instance port |
| * @param install installation flag |
| */ |
| private void setArpReplyRuleForVlan(InstancePort port, boolean install) { |
| |
| TrafficSelector selector = setArpReplyRuleForVnet(port, install); |
| setRemoteArpTreatmentForVlan(selector, port, install); |
| } |
| |
| // a helper method |
| private TrafficSelector setArpReplyRuleForVnet(InstancePort port, boolean install) { |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| .matchArpOp(ARP.OP_REPLY) |
| .matchArpTpa(port.ipAddress().getIp4Address()) |
| .matchArpTha(port.macAddress()) |
| .build(); |
| |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .setOutput(port.portNumber()) |
| .build(); |
| |
| osFlowRuleService.setRule( |
| appId, |
| port.deviceId(), |
| selector, |
| treatment, |
| PRIORITY_ARP_REPLY_RULE, |
| DHCP_ARP_TABLE, |
| install |
| ); |
| |
| return selector; |
| } |
| |
| // a helper method |
| private void setRemoteArpTreatmentForVxlan(TrafficSelector selector, |
| InstancePort port, |
| OpenstackNode localNode, |
| boolean install) { |
| for (OpenstackNode remoteNode : osNodeService.completeNodes(COMPUTE)) { |
| if (!remoteNode.intgBridge().equals(port.deviceId())) { |
| TrafficTreatment treatmentToRemote = DefaultTrafficTreatment.builder() |
| .extension(buildExtension( |
| deviceService, |
| remoteNode.intgBridge(), |
| localNode.dataIp().getIp4Address()), |
| remoteNode.intgBridge()) |
| .setOutput(remoteNode.tunnelPortNum()) |
| .build(); |
| |
| osFlowRuleService.setRule( |
| appId, |
| remoteNode.intgBridge(), |
| selector, |
| treatmentToRemote, |
| PRIORITY_ARP_REQUEST_RULE, |
| DHCP_ARP_TABLE, |
| install |
| ); |
| } |
| } |
| } |
| |
| // a helper method |
| private void setRemoteArpTreatmentForVlan(TrafficSelector selector, |
| InstancePort port, |
| boolean install) { |
| for (OpenstackNode remoteNode : osNodeService.completeNodes(COMPUTE)) { |
| if (!remoteNode.intgBridge().equals(port.deviceId()) && remoteNode.vlanIntf() != null) { |
| TrafficTreatment treatmentToRemote = DefaultTrafficTreatment.builder() |
| .setOutput(remoteNode.vlanPortNum()) |
| .build(); |
| |
| osFlowRuleService.setRule( |
| appId, |
| remoteNode.intgBridge(), |
| selector, |
| treatmentToRemote, |
| PRIORITY_ARP_REQUEST_RULE, |
| DHCP_ARP_TABLE, |
| install); |
| } |
| } |
| } |
| |
| /** |
| * Extracts properties from the component configuration context. |
| * |
| * @param context the component context |
| */ |
| private void readComponentConfiguration(ComponentContext context) { |
| Dictionary<?, ?> properties = context.getProperties(); |
| |
| String updatedMac = Tools.get(properties, GATEWAY_MAC); |
| gatewayMac = updatedMac != null ? updatedMac : DEFAULT_GATEWAY_MAC_STR; |
| log.info("Configured. Gateway MAC is {}", gatewayMac); |
| } |
| |
| /** |
| * An internal packet processor which processes ARP request, and results in |
| * packet-out ARP reply. |
| */ |
| private class InternalPacketProcessor implements PacketProcessor { |
| |
| @Override |
| public void process(PacketContext context) { |
| if (context.isHandled()) { |
| return; |
| } |
| |
| Ethernet ethPacket = context.inPacket().parsed(); |
| if (ethPacket == null || ethPacket.getEtherType() != Ethernet.TYPE_ARP) { |
| return; |
| } |
| processPacketIn(context, ethPacket); |
| } |
| } |
| |
| /** |
| * An internal network listener which listens to openstack network event, |
| * manages the gateway collection and installs flow rule that handles |
| * ARP request in data plane. |
| */ |
| private class InternalOpenstackNetworkListener implements OpenstackNetworkListener { |
| |
| @Override |
| public boolean isRelevant(OpenstackNetworkEvent event) { |
| Subnet osSubnet = event.subnet(); |
| if (osSubnet == null) { |
| return false; |
| } |
| |
| Network network = osNetworkService.network(osSubnet.getNetworkId()); |
| |
| if (network == null) { |
| log.warn("Network is not specified."); |
| return false; |
| } else { |
| if (network.getNetworkType().equals(NetworkType.FLAT)) { |
| return false; |
| } |
| } |
| |
| // do not allow to proceed without leadership |
| NodeId leader = leadershipService.getLeader(appId.name()); |
| if (!Objects.equals(localNodeId, leader)) { |
| return false; |
| } |
| |
| return !Strings.isNullOrEmpty(osSubnet.getGateway()); |
| } |
| |
| @Override |
| public void event(OpenstackNetworkEvent event) { |
| switch (event.type()) { |
| case OPENSTACK_SUBNET_CREATED: |
| case OPENSTACK_SUBNET_UPDATED: |
| setFakeGatewayArpRule(event.subnet(), true, null); |
| break; |
| case OPENSTACK_SUBNET_REMOVED: |
| setFakeGatewayArpRule(event.subnet(), false, null); |
| break; |
| case OPENSTACK_NETWORK_CREATED: |
| case OPENSTACK_NETWORK_UPDATED: |
| case OPENSTACK_NETWORK_REMOVED: |
| case OPENSTACK_PORT_CREATED: |
| case OPENSTACK_PORT_UPDATED: |
| case OPENSTACK_PORT_REMOVED: |
| default: |
| // do nothing for the other events |
| break; |
| } |
| } |
| } |
| |
| /** |
| * An internal openstack node listener which is used for listening openstack |
| * node activity. As long as a node is in complete state, we will install |
| * default ARP rule to handle ARP request. |
| */ |
| private class InternalNodeEventListener implements OpenstackNodeListener { |
| |
| @Override |
| public boolean isRelevant(OpenstackNodeEvent event) { |
| |
| // do not allow to proceed without leadership |
| NodeId leader = leadershipService.getLeader(appId.name()); |
| return Objects.equals(localNodeId, leader) && event.subject().type() == COMPUTE; |
| } |
| |
| @Override |
| public void event(OpenstackNodeEvent event) { |
| OpenstackNode osNode = event.subject(); |
| switch (event.type()) { |
| case OPENSTACK_NODE_COMPLETE: |
| setDefaultArpRule(osNode, true); |
| setAllArpRules(osNode, true); |
| break; |
| case OPENSTACK_NODE_INCOMPLETE: |
| setDefaultArpRule(osNode, false); |
| setAllArpRules(osNode, false); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| private void setDefaultArpRule(OpenstackNode osNode, boolean install) { |
| |
| if (getArpMode() == null) { |
| return; |
| } |
| |
| switch (getArpMode()) { |
| case ARP_PROXY_MODE: |
| setDefaultArpRuleForProxyMode(osNode, install); |
| break; |
| case ARP_BROADCAST_MODE: |
| setDefaultArpRuleForBroadcastMode(osNode, install); |
| |
| // we do not add fake gateway ARP rules for FLAT network |
| // ARP packets generated by FLAT typed VM should not be |
| // delegated to switch to handle |
| osNetworkService.subnets().stream().filter(subnet -> |
| osNetworkService.network(subnet.getNetworkId()) != null && |
| osNetworkService.network(subnet.getNetworkId()) |
| .getNetworkType() != NetworkType.FLAT) |
| .forEach(subnet -> |
| setFakeGatewayArpRule(subnet, install, osNode)); |
| break; |
| default: |
| log.warn("Invalid ARP mode {}. Please use either " + |
| "broadcast or proxy mode.", getArpMode()); |
| break; |
| } |
| } |
| |
| private void setDefaultArpRuleForProxyMode(OpenstackNode osNode, boolean install) { |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| .build(); |
| |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .punt() |
| .build(); |
| |
| osFlowRuleService.setRule( |
| appId, |
| osNode.intgBridge(), |
| selector, |
| treatment, |
| PRIORITY_ARP_CONTROL_RULE, |
| DHCP_ARP_TABLE, |
| install |
| ); |
| } |
| |
| private void setDefaultArpRuleForBroadcastMode(OpenstackNode osNode, boolean install) { |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| .matchArpOp(ARP.OP_REQUEST) |
| .build(); |
| |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .setOutput(PortNumber.FLOOD) |
| .build(); |
| |
| osFlowRuleService.setRule( |
| appId, |
| osNode.intgBridge(), |
| selector, |
| treatment, |
| PRIORITY_ARP_SUBNET_RULE, |
| DHCP_ARP_TABLE, |
| install |
| ); |
| } |
| |
| private void setAllArpRules(OpenstackNode osNode, boolean install) { |
| if (ARP_BROADCAST_MODE.equals(getArpMode())) { |
| instancePortService.instancePorts().stream() |
| .filter(p -> p.state() == ACTIVE) |
| .filter(p -> p.deviceId().equals(osNode.intgBridge())) |
| .forEach(p -> { |
| setArpRequestRule(p, install); |
| setArpReplyRule(p, install); |
| }); |
| } |
| } |
| } |
| |
| /** |
| * An internal instance port listener which listens the port events generated |
| * from VM. When ARP a host which located in a remote compute node, we specify |
| * both ARP OP mode as REQUEST and Target Protocol Address (TPA) with |
| * host IP address. When ARP a host which located in a local compute node, |
| * we specify only ARP OP mode as REQUEST. |
| */ |
| private class InternalInstancePortListener implements InstancePortListener { |
| |
| @Override |
| public boolean isRelevant(InstancePortEvent event) { |
| |
| if (ARP_PROXY_MODE.equals(getArpMode())) { |
| return false; |
| } |
| |
| InstancePort instPort = event.subject(); |
| return mastershipService.isLocalMaster(instPort.deviceId()); |
| } |
| |
| @Override |
| public void event(InstancePortEvent event) { |
| switch (event.type()) { |
| case OPENSTACK_INSTANCE_PORT_DETECTED: |
| case OPENSTACK_INSTANCE_PORT_UPDATED: |
| setArpRequestRule(event.subject(), true); |
| setArpReplyRule(event.subject(), true); |
| break; |
| case OPENSTACK_INSTANCE_PORT_VANISHED: |
| setArpRequestRule(event.subject(), false); |
| setArpReplyRule(event.subject(), false); |
| break; |
| case OPENSTACK_INSTANCE_MIGRATION_STARTED: |
| setArpRequestRule(event.subject(), true); |
| setArpReplyRule(event.subject(), true); |
| break; |
| case OPENSTACK_INSTANCE_MIGRATION_ENDED: |
| InstancePort revisedInstPort = swapStaleLocation(event.subject()); |
| setArpRequestRule(revisedInstPort, false); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| } |