sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 1 | /* |
Brian O'Connor | 5ab426f | 2016-04-09 01:19:45 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Laboratory |
sangho | 0c2a3da | 2016-02-16 13:39:07 +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 | * |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 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 | */ |
| 16 | package org.onosproject.openstacknetworking.routing; |
| 17 | |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 18 | import com.google.common.collect.Maps; |
| 19 | import org.onlab.packet.Ethernet; |
| 20 | import org.onlab.packet.ICMP; |
| 21 | import org.onlab.packet.IPv4; |
| 22 | import org.onlab.packet.Ip4Address; |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 23 | import org.onlab.packet.IpAddress; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 24 | import org.onlab.packet.MacAddress; |
| 25 | import org.onosproject.core.ApplicationId; |
| 26 | import org.onosproject.net.DeviceId; |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 27 | import org.onosproject.net.Host; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 28 | import org.onosproject.net.Port; |
| 29 | import org.onosproject.net.PortNumber; |
| 30 | import org.onosproject.net.device.DeviceService; |
| 31 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 32 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 33 | import org.onosproject.net.flow.TrafficSelector; |
| 34 | import org.onosproject.net.flow.TrafficTreatment; |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 35 | import org.onosproject.net.host.HostService; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 36 | import org.onosproject.net.packet.DefaultOutboundPacket; |
| 37 | import org.onosproject.net.packet.OutboundPacket; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 38 | import org.onosproject.net.packet.PacketContext; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 39 | import org.onosproject.net.packet.PacketPriority; |
| 40 | import org.onosproject.net.packet.PacketService; |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 41 | import org.onosproject.openstacknetworking.Constants; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 42 | import org.onosproject.openstackinterface.OpenstackInterfaceService; |
| 43 | import org.onosproject.openstackinterface.OpenstackPort; |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 44 | import org.onosproject.openstacknode.OpenstackNode; |
| 45 | import org.onosproject.openstacknode.OpenstackNodeService; |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 46 | import org.onosproject.scalablegateway.api.ScalableGatewayService; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 47 | import org.slf4j.Logger; |
| 48 | |
| 49 | import java.nio.ByteBuffer; |
| 50 | import java.util.Map; |
| 51 | import java.util.Optional; |
| 52 | |
| 53 | import static com.google.common.base.Preconditions.checkNotNull; |
| 54 | |
| 55 | import static org.slf4j.LoggerFactory.getLogger; |
| 56 | |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 57 | |
| 58 | /** |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 59 | * Handle ICMP packet sent from Openstack Gateway nodes. |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 60 | */ |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 61 | public class OpenstackIcmpHandler { |
| 62 | protected final Logger log = getLogger(getClass()); |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 63 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 64 | |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 65 | private static final String NETWORK_ROUTER_INTERFACE = "network:router_interface"; |
| 66 | private static final String PORTNAME = "portName"; |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 67 | private static final String NETWORK_ROUTER_GATEWAY = "network:router_gateway"; |
| 68 | private static final String NETWORK_FLOATING_IP = "network:floatingip"; |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 69 | |
| 70 | private final PacketService packetService; |
| 71 | private final DeviceService deviceService; |
| 72 | private final ScalableGatewayService gatewayService; |
| 73 | private final HostService hostService; |
| 74 | private final Map<String, Host> icmpInfoMap = Maps.newHashMap(); |
| 75 | private final OpenstackInterfaceService openstackService; |
| 76 | private final OpenstackNodeService nodeService; |
| 77 | |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 78 | /** |
| 79 | * Default constructor. |
| 80 | * |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 81 | * @param packetService packet service |
| 82 | * @param deviceService device service |
| 83 | * @param openstackService openstackInterface service |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 84 | */ |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 85 | OpenstackIcmpHandler(PacketService packetService, |
| 86 | DeviceService deviceService, |
| 87 | HostService hostService, |
| 88 | OpenstackInterfaceService openstackService, |
| 89 | OpenstackNodeService nodeService, |
| 90 | ScalableGatewayService gatewayService |
| 91 | ) { |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 92 | this.packetService = packetService; |
| 93 | this.deviceService = deviceService; |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 94 | this.hostService = hostService; |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 95 | this.openstackService = checkNotNull(openstackService); |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 96 | this.nodeService = nodeService; |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 97 | this.gatewayService = gatewayService; |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 98 | } |
| 99 | |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 100 | /** |
| 101 | * Requests ICMP packet. |
| 102 | * |
| 103 | * @param appId Application Id |
| 104 | */ |
| 105 | public void requestPacket(ApplicationId appId) { |
| 106 | TrafficSelector icmpSelector = DefaultTrafficSelector.builder() |
| 107 | .matchEthType(Ethernet.TYPE_IPV4) |
| 108 | .matchIPProtocol(IPv4.PROTOCOL_ICMP) |
| 109 | .build(); |
| 110 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 111 | // TODO: Return the correct gateway node |
| 112 | Optional<OpenstackNode> gwNode = nodeService.nodes().stream() |
| 113 | .filter(n -> n.type().equals(OpenstackNodeService.NodeType.GATEWAY)) |
| 114 | .findFirst(); |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 115 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 116 | if (!gwNode.isPresent()) { |
| 117 | log.warn("No Gateway is defined."); |
| 118 | return; |
| 119 | } |
| 120 | |
| 121 | packetService.requestPackets(icmpSelector, |
| 122 | PacketPriority.CONTROL, |
| 123 | appId, |
| 124 | Optional.of(gwNode.get().intBridge())); |
sangho | 0c2a3da | 2016-02-16 13:39:07 +0900 | [diff] [blame] | 125 | } |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 126 | |
| 127 | /** |
| 128 | * Handles ICMP packet. |
| 129 | * |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 130 | * @param context packet context |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 131 | * @param ethernet ethernet |
| 132 | */ |
| 133 | public void processIcmpPacket(PacketContext context, Ethernet ethernet) { |
| 134 | checkNotNull(context, "context can not be null"); |
| 135 | checkNotNull(ethernet, "ethernet can not be null"); |
| 136 | |
| 137 | IPv4 ipPacket = (IPv4) ethernet.getPayload(); |
| 138 | |
| 139 | log.debug("icmpEvent called from ip {}, mac {}", Ip4Address.valueOf(ipPacket.getSourceAddress()).toString(), |
| 140 | ethernet.getSourceMAC().toString()); |
| 141 | |
| 142 | ICMP icmp = (ICMP) ipPacket.getPayload(); |
| 143 | short icmpId = getIcmpId(icmp); |
| 144 | |
| 145 | DeviceId deviceId = context.inPacket().receivedFrom().deviceId(); |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 146 | PortNumber portNumber = context.inPacket().receivedFrom().port(); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 147 | if (icmp.getIcmpType() == ICMP.TYPE_ECHO_REQUEST) { |
| 148 | //TODO: Considers icmp between internal subnets which are belonged to the same router. |
| 149 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 150 | //OpenstackPortInfo openstackPortInfo = |
| 151 | // getOpenstackPortInfo(Ip4Address.valueOf(ipPacket.getSourceAddress()), ethernet.getSourceMAC()); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 152 | |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 153 | //checkNotNull(openstackPortInfo, "openstackPortInfo can not be null"); |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 154 | /* XXX Is this handling ICMP to gateway ????? |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 155 | if (requestToOpenstackRoutingNetwork(ipPacket.getDestinationAddress())) { |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 156 | Host host = |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 157 | if (openstackPortInfo == null) { |
| 158 | if (config.gatewayBridgeId().equals(context.inPacket().receivedFrom().deviceId().toString())) { |
| 159 | if (portNumber.equals(getPortForAnnotationPortName(deviceId, |
| 160 | config.gatewayExternalInterfaceName()))) { |
| 161 | processIcmpPacketSentToExtenal(ipPacket, icmp, ipPacket.getSourceAddress(), |
| 162 | ethernet.getSourceMAC(), deviceId, portNumber); |
| 163 | return; |
| 164 | } |
| 165 | } |
| 166 | return; |
| 167 | } else { |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 168 | processIcmpPacketSentToGateway(ipPacket, icmp, host); |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 169 | return; |
| 170 | } |
| 171 | } |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 172 | */ |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 173 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 174 | Optional<Host> host = hostService.getHostsByMac(ethernet.getSourceMAC()).stream().findFirst(); |
| 175 | if (!host.isPresent()) { |
| 176 | log.warn("No host found for MAC {}", ethernet.getSourceMAC()); |
| 177 | return; |
| 178 | } |
| 179 | |
| 180 | IpAddress gatewayIp = IpAddress.valueOf(host.get().annotations().value(Constants.GATEWAY_IP)); |
| 181 | if (ipPacket.getDestinationAddress() == gatewayIp.getIp4Address().toInt()) { |
| 182 | processIcmpPacketSentToGateway(ipPacket, icmp, host.get()); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 183 | } else { |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 184 | Ip4Address pNatIpAddress = pNatIpForPort(host.get()); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 185 | checkNotNull(pNatIpAddress, "pNatIpAddress can not be null"); |
| 186 | |
| 187 | sendRequestPacketToExt(ipPacket, icmp, deviceId, pNatIpAddress); |
| 188 | |
| 189 | String icmpInfoKey = String.valueOf(icmpId) |
| 190 | .concat(String.valueOf(pNatIpAddress.toInt())) |
| 191 | .concat(String.valueOf(ipPacket.getDestinationAddress())); |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 192 | icmpInfoMap.putIfAbsent(icmpInfoKey, host.get()); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 193 | } |
| 194 | } else if (icmp.getIcmpType() == ICMP.TYPE_ECHO_REPLY) { |
| 195 | String icmpInfoKey = String.valueOf(icmpId) |
| 196 | .concat(String.valueOf(ipPacket.getDestinationAddress())) |
| 197 | .concat(String.valueOf(ipPacket.getSourceAddress())); |
| 198 | |
| 199 | processResponsePacketFromExternalToHost(ipPacket, icmp, icmpInfoMap.get(icmpInfoKey)); |
| 200 | |
| 201 | icmpInfoMap.remove(icmpInfoKey); |
| 202 | } |
| 203 | } |
| 204 | |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 205 | private void processIcmpPacketSentToExtenal(IPv4 icmpRequestIpv4, ICMP icmpRequest, |
| 206 | int destAddr, MacAddress destMac, |
| 207 | DeviceId deviceId, PortNumber portNumber) { |
| 208 | icmpRequest.setChecksum((short) 0); |
| 209 | icmpRequest.setIcmpType(ICMP.TYPE_ECHO_REPLY).resetChecksum(); |
| 210 | icmpRequestIpv4.setSourceAddress(icmpRequestIpv4.getDestinationAddress()) |
| 211 | .setDestinationAddress(destAddr).resetChecksum(); |
| 212 | icmpRequestIpv4.setPayload(icmpRequest); |
| 213 | Ethernet icmpResponseEth = new Ethernet(); |
| 214 | icmpResponseEth.setEtherType(Ethernet.TYPE_IPV4) |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 215 | // TODO: Get the correct GW MAC |
| 216 | .setSourceMACAddress(Constants.GW_EXT_INT_MAC) |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 217 | .setDestinationMACAddress(destMac).setPayload(icmpRequestIpv4); |
| 218 | TrafficTreatment treatment = DefaultTrafficTreatment.builder().setOutput(portNumber).build(); |
| 219 | OutboundPacket packet = new DefaultOutboundPacket(deviceId, |
| 220 | treatment, ByteBuffer.wrap(icmpResponseEth.serialize())); |
| 221 | packetService.emit(packet); |
| 222 | } |
| 223 | |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 224 | private void processIcmpPacketSentToGateway(IPv4 icmpRequestIpv4, ICMP icmpRequest, |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 225 | Host host) { |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 226 | icmpRequest.setChecksum((short) 0); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 227 | icmpRequest.setIcmpType(ICMP.TYPE_ECHO_REPLY) |
| 228 | .resetChecksum(); |
| 229 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 230 | Ip4Address ipAddress = host.ipAddresses().stream().findAny().get().getIp4Address(); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 231 | icmpRequestIpv4.setSourceAddress(icmpRequestIpv4.getDestinationAddress()) |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 232 | .setDestinationAddress(ipAddress.toInt()) |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 233 | .resetChecksum(); |
| 234 | |
| 235 | icmpRequestIpv4.setPayload(icmpRequest); |
| 236 | |
| 237 | Ethernet icmpResponseEth = new Ethernet(); |
| 238 | |
| 239 | icmpResponseEth.setEtherType(Ethernet.TYPE_IPV4) |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 240 | .setSourceMACAddress(Constants.GATEWAY_MAC) |
| 241 | .setDestinationMACAddress(host.mac()) |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 242 | .setPayload(icmpRequestIpv4); |
| 243 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 244 | sendResponsePacketToHost(icmpResponseEth, host); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 245 | } |
| 246 | |
| 247 | private void sendRequestPacketToExt(IPv4 icmpRequestIpv4, ICMP icmpRequest, DeviceId deviceId, |
| 248 | Ip4Address pNatIpAddress) { |
| 249 | icmpRequest.resetChecksum(); |
| 250 | icmpRequestIpv4.setSourceAddress(pNatIpAddress.toInt()) |
| 251 | .resetChecksum(); |
| 252 | icmpRequestIpv4.setPayload(icmpRequest); |
| 253 | |
| 254 | Ethernet icmpRequestEth = new Ethernet(); |
| 255 | |
| 256 | icmpRequestEth.setEtherType(Ethernet.TYPE_IPV4) |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 257 | // TODO: Get the correct one - Scalable Gateway ... |
| 258 | .setSourceMACAddress(Constants.GW_EXT_INT_MAC) |
| 259 | .setDestinationMACAddress(Constants.PHY_ROUTER_MAC) |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 260 | .setPayload(icmpRequestIpv4); |
| 261 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 262 | // TODO: Return the correct gateway node |
| 263 | Optional<OpenstackNode> gwNode = nodeService.nodes().stream() |
| 264 | .filter(n -> n.type().equals(OpenstackNodeService.NodeType.GATEWAY)) |
| 265 | .findFirst(); |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 266 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 267 | if (!gwNode.isPresent()) { |
| 268 | log.warn("No Gateway is defined."); |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 269 | return; |
| 270 | } |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 271 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 272 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 273 | // FIXME: please double check this. |
| 274 | .setOutput(getPortForAnnotationPortName(gwNode.get().intBridge(), |
| 275 | // FIXME: please double check this. |
| 276 | org.onosproject.openstacknode.Constants.PATCH_INTG_BRIDGE)) |
| 277 | .build(); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 278 | |
| 279 | OutboundPacket packet = new DefaultOutboundPacket(deviceId, |
| 280 | treatment, ByteBuffer.wrap(icmpRequestEth.serialize())); |
| 281 | |
| 282 | packetService.emit(packet); |
| 283 | } |
| 284 | |
| 285 | private void processResponsePacketFromExternalToHost(IPv4 icmpResponseIpv4, ICMP icmpResponse, |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 286 | Host host) { |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 287 | icmpResponse.resetChecksum(); |
| 288 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 289 | Ip4Address ipAddress = host.ipAddresses().stream().findFirst().get().getIp4Address(); |
| 290 | icmpResponseIpv4.setDestinationAddress(ipAddress.toInt()) |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 291 | .resetChecksum(); |
| 292 | icmpResponseIpv4.setPayload(icmpResponse); |
| 293 | |
| 294 | Ethernet icmpResponseEth = new Ethernet(); |
| 295 | |
| 296 | icmpResponseEth.setEtherType(Ethernet.TYPE_IPV4) |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 297 | .setSourceMACAddress(Constants.GATEWAY_MAC) |
| 298 | .setDestinationMACAddress(host.mac()) |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 299 | .setPayload(icmpResponseIpv4); |
| 300 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 301 | sendResponsePacketToHost(icmpResponseEth, host); |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 302 | } |
| 303 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 304 | private void sendResponsePacketToHost(Ethernet icmpResponseEth, Host host) { |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 305 | |
| 306 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 307 | .setOutput(host.location().port()) |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 308 | .build(); |
| 309 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 310 | OutboundPacket packet = new DefaultOutboundPacket(host.location().deviceId(), |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 311 | treatment, ByteBuffer.wrap(icmpResponseEth.serialize())); |
| 312 | |
| 313 | packetService.emit(packet); |
| 314 | } |
| 315 | |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 316 | private short getIcmpId(ICMP icmp) { |
| 317 | return ByteBuffer.wrap(icmp.serialize(), 4, 2).getShort(); |
| 318 | } |
| 319 | |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 320 | private Ip4Address pNatIpForPort(Host host) { |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 321 | |
| 322 | OpenstackPort openstackPort = openstackService.ports().stream() |
| 323 | .filter(p -> p.deviceOwner().equals(NETWORK_ROUTER_INTERFACE) && |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 324 | p.networkId().equals(host.annotations().value(Constants.NETWORK_ID))) |
Daniel Park | 81a61a1 | 2016-02-26 08:24:44 +0900 | [diff] [blame] | 325 | .findAny().orElse(null); |
| 326 | |
| 327 | checkNotNull(openstackPort, "openstackPort can not be null"); |
| 328 | |
| 329 | return openstackService.router(openstackPort.deviceId()) |
| 330 | .gatewayExternalInfo().externalFixedIps().values() |
| 331 | .stream().findAny().orElse(null); |
| 332 | } |
| 333 | |
| 334 | private PortNumber getPortForAnnotationPortName(DeviceId deviceId, String match) { |
| 335 | Port port = deviceService.getPorts(deviceId).stream() |
| 336 | .filter(p -> p.annotations().value(PORTNAME).equals(match)) |
| 337 | .findAny().orElse(null); |
| 338 | |
| 339 | checkNotNull(port, "port cannot be null"); |
| 340 | |
| 341 | return port.number(); |
| 342 | } |
hyungseo Ryu | 38b5f18 | 2016-06-14 16:42:27 +0900 | [diff] [blame] | 343 | |
| 344 | private boolean requestToOpenstackRoutingNetwork(int destAddr) { |
| 345 | OpenstackPort port = openstackService.ports().stream() |
| 346 | .filter(p -> p.deviceOwner().equals(NETWORK_ROUTER_GATEWAY) || |
| 347 | p.deviceOwner().equals(NETWORK_FLOATING_IP)) |
| 348 | .filter(p -> p.fixedIps().containsValue( |
| 349 | Ip4Address.valueOf(destAddr))) |
| 350 | .findAny().orElse(null); |
| 351 | if (port == null) { |
| 352 | return false; |
| 353 | } |
| 354 | return true; |
| 355 | } |
Kyuhwi Choi | 92d9ea4 | 2016-06-13 17:28:00 +0900 | [diff] [blame] | 356 | private Map<DeviceId, PortNumber> getExternalInfo() { |
| 357 | Map<DeviceId, PortNumber> externalInfoMap = Maps.newHashMap(); |
| 358 | gatewayService.getGatewayDeviceIds().forEach(deviceId -> |
| 359 | externalInfoMap.putIfAbsent(deviceId, gatewayService.getGatewayExternalPorts(deviceId).get(0))); |
| 360 | return externalInfoMap; |
| 361 | } |
| 362 | } |