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 | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 29 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 30 | import org.onosproject.net.flow.TrafficTreatment; |
| 31 | import org.onosproject.net.packet.DefaultOutboundPacket; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 32 | import org.onosproject.net.packet.InboundPacket; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 33 | import org.onosproject.net.packet.PacketContext; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 34 | import org.onosproject.net.packet.PacketProcessor; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 35 | import org.onosproject.net.packet.PacketService; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 36 | import org.onosproject.openstacknetworking.api.OpenstackNetworkService; |
Hyunsun Moon | 0540087 | 2017-02-07 17:11:25 +0900 | [diff] [blame] | 37 | import org.onosproject.openstacknetworking.api.Constants; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 38 | import org.onosproject.openstacknode.api.OpenstackNode; |
| 39 | import org.onosproject.openstacknode.api.OpenstackNodeService; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 40 | import org.slf4j.Logger; |
| 41 | |
| 42 | import java.nio.ByteBuffer; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 43 | import java.util.Objects; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 44 | import java.util.Set; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 45 | import java.util.concurrent.ExecutorService; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 46 | import java.util.stream.Collectors; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 47 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 48 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 49 | import static org.onlab.util.Tools.groupedThreads; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 50 | import static org.onosproject.openstacknode.api.OpenstackNode.NodeType.GATEWAY; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 51 | import static org.slf4j.LoggerFactory.getLogger; |
| 52 | |
| 53 | /** |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 54 | * Handle ARP requests from gateway nodes. |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 55 | */ |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 56 | @Component(immediate = true) |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 57 | public class OpenstackRoutingArpHandler { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 58 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 59 | private final Logger log = getLogger(getClass()); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 60 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 61 | private static final String DEVICE_OWNER_ROUTER_GW = "network:router_gateway"; |
| 62 | private static final String DEVICE_OWNER_FLOATING_IP = "network:floatingip"; |
| 63 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 64 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 65 | protected PacketService packetService; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 66 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 67 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
daniel park | e49eb38 | 2017-04-05 16:48:28 +0900 | [diff] [blame] | 68 | protected OpenstackNetworkService osNetworkService; |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 69 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 70 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
daniel park | e49eb38 | 2017-04-05 16:48:28 +0900 | [diff] [blame] | 71 | protected OpenstackNodeService osNodeService; |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 72 | |
| 73 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 74 | groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 75 | |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 76 | private final PacketProcessor packetProcessor = new InternalPacketProcessor(); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 77 | |
| 78 | @Activate |
| 79 | protected void activate() { |
| 80 | packetService.addProcessor(packetProcessor, PacketProcessor.director(1)); |
| 81 | log.info("Started"); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 82 | } |
| 83 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 84 | @Deactivate |
| 85 | protected void deactivate() { |
| 86 | packetService.removeProcessor(packetProcessor); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 87 | eventExecutor.shutdown(); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 88 | log.info("Stopped"); |
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 | private void processArpPacket(PacketContext context, Ethernet ethernet) { |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 92 | ARP arp = (ARP) ethernet.getPayload(); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 93 | if (arp.getOpCode() != ARP.OP_REQUEST) { |
| 94 | return; |
| 95 | } |
| 96 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 97 | if (log.isTraceEnabled()) { |
| 98 | log.trace("ARP request received from {} for {}", |
| 99 | Ip4Address.valueOf(arp.getSenderProtocolAddress()).toString(), |
| 100 | Ip4Address.valueOf(arp.getTargetProtocolAddress()).toString()); |
| 101 | } |
| 102 | |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 103 | IpAddress targetIp = Ip4Address.valueOf(arp.getTargetProtocolAddress()); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 104 | if (!isServiceIp(targetIp.getIp4Address())) { |
| 105 | log.trace("Unknown target ARP request for {}, ignore it", targetIp); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 106 | return; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 107 | } |
| 108 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 109 | MacAddress targetMac = Constants.DEFAULT_EXTERNAL_ROUTER_MAC; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 110 | Ethernet ethReply = ARP.buildArpReply(targetIp.getIp4Address(), |
| 111 | targetMac, ethernet); |
| 112 | |
| 113 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 114 | .setOutput(context.inPacket().receivedFrom().port()) |
| 115 | .build(); |
| 116 | |
| 117 | packetService.emit(new DefaultOutboundPacket( |
| 118 | context.inPacket().receivedFrom().deviceId(), |
| 119 | treatment, |
| 120 | ByteBuffer.wrap(ethReply.serialize()))); |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 121 | |
| 122 | context.block(); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 123 | } |
| 124 | |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 125 | private class InternalPacketProcessor implements PacketProcessor { |
| 126 | |
| 127 | @Override |
| 128 | public void process(PacketContext context) { |
| 129 | if (context.isHandled()) { |
| 130 | return; |
Hyunsun Moon | 0d45736 | 2017-06-27 17:19:41 +0900 | [diff] [blame] | 131 | } |
| 132 | |
| 133 | Set<DeviceId> gateways = osNodeService.completeNodes(GATEWAY) |
| 134 | .stream().map(OpenstackNode::intgBridge) |
| 135 | .collect(Collectors.toSet()); |
| 136 | |
| 137 | if (!gateways.contains(context.inPacket().receivedFrom().deviceId())) { |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 138 | // return if the packet is not from gateway nodes |
| 139 | return; |
| 140 | } |
| 141 | |
| 142 | InboundPacket pkt = context.inPacket(); |
| 143 | Ethernet ethernet = pkt.parsed(); |
| 144 | if (ethernet != null && |
| 145 | ethernet.getEtherType() == Ethernet.TYPE_ARP) { |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 146 | eventExecutor.execute(() -> processArpPacket(context, ethernet)); |
Hyunsun Moon | b3eb84d | 2016-07-27 19:10:52 -0700 | [diff] [blame] | 147 | } |
| 148 | } |
| 149 | } |
| 150 | |
Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 151 | private boolean isServiceIp(IpAddress targetIp) { |
| 152 | // FIXME use floating IP and external gateway information of router instead |
| 153 | // once openstack4j fixed |
| 154 | return osNetworkService.ports().stream() |
| 155 | .filter(osPort -> Objects.equals(osPort.getDeviceOwner(), |
| 156 | DEVICE_OWNER_ROUTER_GW) || |
| 157 | Objects.equals(osPort.getDeviceOwner(), |
| 158 | DEVICE_OWNER_FLOATING_IP)) |
| 159 | .flatMap(osPort -> osPort.getFixedIps().stream()) |
| 160 | .anyMatch(ip -> IpAddress.valueOf(ip.getIpAddress()).equals(targetIp)); |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 161 | } |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 162 | } |