Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 1 | /* |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Foundation |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Hyunsun Moon | 0540087 | 2017-02-07 17:11:25 +0900 | [diff] [blame] | 16 | package org.onosproject.openstacknetworking.impl; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 17 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 18 | import org.apache.felix.scr.annotations.Activate; |
| 19 | import org.apache.felix.scr.annotations.Component; |
| 20 | import org.apache.felix.scr.annotations.Deactivate; |
| 21 | import org.apache.felix.scr.annotations.Reference; |
| 22 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 23 | import org.onlab.packet.ARP; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 24 | import org.onlab.packet.Ethernet; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 25 | import org.onlab.packet.Ip4Address; |
| 26 | import org.onlab.packet.IpAddress; |
| 27 | import org.onlab.packet.MacAddress; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 28 | import org.onosproject.net.DeviceId; |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 29 | import org.onosproject.net.PortNumber; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 30 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 31 | import org.onosproject.net.flow.TrafficTreatment; |
| 32 | import org.onosproject.net.packet.DefaultOutboundPacket; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 33 | import org.onosproject.net.packet.InboundPacket; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 34 | import org.onosproject.net.packet.PacketContext; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 35 | import org.onosproject.net.packet.PacketProcessor; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 36 | import org.onosproject.net.packet.PacketService; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 37 | import org.onosproject.openstacknetworking.api.OpenstackNetworkService; |
Hyunsun Moon | 0540087 | 2017-02-07 17:11:25 +0900 | [diff] [blame] | 38 | import org.onosproject.openstacknetworking.api.Constants; |
daniel park | eeb8e04 | 2018-02-21 14:06:58 +0900 | [diff] [blame^] | 39 | import org.onosproject.openstacknetworking.api.OpenstackRouterService; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 40 | import org.onosproject.openstacknode.api.OpenstackNode; |
| 41 | import org.onosproject.openstacknode.api.OpenstackNodeService; |
daniel park | eeb8e04 | 2018-02-21 14:06:58 +0900 | [diff] [blame^] | 42 | import org.openstack4j.model.network.NetFloatingIP; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 43 | import org.slf4j.Logger; |
| 44 | |
| 45 | import java.nio.ByteBuffer; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 46 | import java.util.Objects; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 47 | import java.util.Set; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 48 | import java.util.concurrent.ExecutorService; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 49 | import java.util.stream.Collectors; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 50 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 51 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 52 | import static org.onlab.util.Tools.groupedThreads; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 53 | import static org.onosproject.openstacknode.api.OpenstackNode.NodeType.GATEWAY; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 54 | import static org.slf4j.LoggerFactory.getLogger; |
| 55 | |
| 56 | /** |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 57 | * Handle ARP requests from gateway nodes. |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 58 | */ |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 59 | @Component(immediate = true) |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 60 | public class OpenstackRoutingArpHandler { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 61 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 62 | private final Logger log = getLogger(getClass()); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 63 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 64 | private static final String DEVICE_OWNER_ROUTER_GW = "network:router_gateway"; |
| 65 | private static final String DEVICE_OWNER_FLOATING_IP = "network:floatingip"; |
| 66 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 67 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 68 | protected PacketService packetService; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 69 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 70 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
daniel park | e49eb38 | 2017-04-05 16:48:28 +0900 | [diff] [blame] | 71 | protected OpenstackNetworkService osNetworkService; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 72 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 73 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
daniel park | eeb8e04 | 2018-02-21 14:06:58 +0900 | [diff] [blame^] | 74 | protected OpenstackRouterService osRouterService; |
| 75 | |
| 76 | |
| 77 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
daniel park | e49eb38 | 2017-04-05 16:48:28 +0900 | [diff] [blame] | 78 | protected OpenstackNodeService osNodeService; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 79 | |
| 80 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 81 | groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 82 | |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 83 | private final PacketProcessor packetProcessor = new InternalPacketProcessor(); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 84 | |
| 85 | @Activate |
| 86 | protected void activate() { |
| 87 | packetService.addProcessor(packetProcessor, PacketProcessor.director(1)); |
| 88 | log.info("Started"); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 89 | } |
| 90 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 91 | @Deactivate |
| 92 | protected void deactivate() { |
| 93 | packetService.removeProcessor(packetProcessor); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 94 | eventExecutor.shutdown(); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 95 | log.info("Stopped"); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 96 | } |
| 97 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 98 | private void processArpPacket(PacketContext context, Ethernet ethernet) { |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 99 | ARP arp = (ARP) ethernet.getPayload(); |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 100 | if (arp.getOpCode() == ARP.OP_REQUEST) { |
| 101 | if (log.isTraceEnabled()) { |
| 102 | log.trace("ARP request received from {} for {}", |
| 103 | Ip4Address.valueOf(arp.getSenderProtocolAddress()).toString(), |
| 104 | Ip4Address.valueOf(arp.getTargetProtocolAddress()).toString()); |
| 105 | } |
| 106 | |
| 107 | IpAddress targetIp = Ip4Address.valueOf(arp.getTargetProtocolAddress()); |
daniel park | eeb8e04 | 2018-02-21 14:06:58 +0900 | [diff] [blame^] | 108 | |
| 109 | MacAddress targetMac = null; |
| 110 | |
| 111 | NetFloatingIP floatingIP = osRouterService.floatingIps().stream() |
| 112 | .filter(ip -> ip.getFloatingIpAddress().equals(targetIp.toString())) |
| 113 | .findAny().orElse(null); |
| 114 | |
| 115 | if (floatingIP != null && floatingIP.getPortId() != null) { |
| 116 | targetMac = MacAddress.valueOf(osNetworkService.port(floatingIP.getPortId()).getMacAddress()); |
| 117 | } |
| 118 | |
| 119 | if (isExternalGatewaySourceIp(targetIp.getIp4Address())) { |
| 120 | targetMac = Constants.DEFAULT_GATEWAY_MAC; |
| 121 | } |
| 122 | |
| 123 | if (targetMac == null) { |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 124 | log.trace("Unknown target ARP request for {}, ignore it", targetIp); |
| 125 | return; |
| 126 | } |
| 127 | |
daniel park | b581710 | 2018-02-15 00:18:51 +0900 | [diff] [blame] | 128 | Ethernet ethReply = ARP.buildArpReply(targetIp.getIp4Address(), |
| 129 | targetMac, ethernet); |
| 130 | |
| 131 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 132 | .setOutput(context.inPacket().receivedFrom().port()) |
| 133 | .build(); |
| 134 | |
| 135 | packetService.emit(new DefaultOutboundPacket( |
| 136 | context.inPacket().receivedFrom().deviceId(), |
| 137 | treatment, |
| 138 | ByteBuffer.wrap(ethReply.serialize()))); |
| 139 | |
| 140 | context.block(); |
| 141 | } else if (arp.getOpCode() == ARP.OP_REPLY) { |
| 142 | PortNumber receivedPortNum = context.inPacket().receivedFrom().port(); |
| 143 | log.debug("ARP reply ip: {}, mac: {}", |
| 144 | Ip4Address.valueOf(arp.getSenderProtocolAddress()), |
| 145 | MacAddress.valueOf(arp.getSenderHardwareAddress())); |
| 146 | try { |
| 147 | if (receivedPortNum.equals( |
| 148 | osNodeService.node(context.inPacket().receivedFrom().deviceId()).uplinkPortNum())) { |
| 149 | osNetworkService.updateExternalPeerRouterMac( |
| 150 | Ip4Address.valueOf(arp.getSenderProtocolAddress()), |
| 151 | MacAddress.valueOf(arp.getSenderHardwareAddress())); |
| 152 | } |
| 153 | } catch (Exception e) { |
| 154 | log.error("Exception occurred because of {}", e.toString()); |
| 155 | } |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 156 | } |
| 157 | |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 158 | } |
| 159 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 160 | private class InternalPacketProcessor implements PacketProcessor { |
| 161 | |
| 162 | @Override |
| 163 | public void process(PacketContext context) { |
| 164 | if (context.isHandled()) { |
| 165 | return; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 166 | } |
| 167 | |
| 168 | Set<DeviceId> gateways = osNodeService.completeNodes(GATEWAY) |
| 169 | .stream().map(OpenstackNode::intgBridge) |
| 170 | .collect(Collectors.toSet()); |
| 171 | |
| 172 | if (!gateways.contains(context.inPacket().receivedFrom().deviceId())) { |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 173 | // return if the packet is not from gateway nodes |
| 174 | return; |
| 175 | } |
| 176 | |
| 177 | InboundPacket pkt = context.inPacket(); |
| 178 | Ethernet ethernet = pkt.parsed(); |
| 179 | if (ethernet != null && |
| 180 | ethernet.getEtherType() == Ethernet.TYPE_ARP) { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 181 | eventExecutor.execute(() -> processArpPacket(context, ethernet)); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 182 | } |
| 183 | } |
| 184 | } |
| 185 | |
daniel park | eeb8e04 | 2018-02-21 14:06:58 +0900 | [diff] [blame^] | 186 | private boolean isExternalGatewaySourceIp(IpAddress targetIp) { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 187 | return osNetworkService.ports().stream() |
| 188 | .filter(osPort -> Objects.equals(osPort.getDeviceOwner(), |
daniel park | eeb8e04 | 2018-02-21 14:06:58 +0900 | [diff] [blame^] | 189 | DEVICE_OWNER_ROUTER_GW)) |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 190 | .flatMap(osPort -> osPort.getFixedIps().stream()) |
| 191 | .anyMatch(ip -> IpAddress.valueOf(ip.getIpAddress()).equals(targetIp)); |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 192 | } |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 193 | } |