yoonseon | 5a51ef7 | 2016-10-26 14:50:09 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Laboratory |
| 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 | */ |
| 16 | |
| 17 | package org.onosproject.incubator.net.virtual.impl.provider; |
| 18 | |
| 19 | import com.google.common.collect.Maps; |
| 20 | import org.apache.felix.scr.annotations.Activate; |
| 21 | import org.apache.felix.scr.annotations.Component; |
| 22 | import org.apache.felix.scr.annotations.Deactivate; |
| 23 | import org.apache.felix.scr.annotations.Modified; |
| 24 | import org.apache.felix.scr.annotations.Reference; |
| 25 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 26 | import org.onlab.packet.Ethernet; |
| 27 | import org.onosproject.core.ApplicationId; |
| 28 | import org.onosproject.core.CoreService; |
| 29 | import org.onosproject.incubator.net.virtual.NetworkId; |
| 30 | import org.onosproject.incubator.net.virtual.TenantId; |
| 31 | import org.onosproject.incubator.net.virtual.VirtualDevice; |
| 32 | import org.onosproject.incubator.net.virtual.VirtualNetwork; |
| 33 | import org.onosproject.incubator.net.virtual.VirtualNetworkAdminService; |
| 34 | import org.onosproject.incubator.net.virtual.VirtualPort; |
| 35 | import org.onosproject.incubator.net.virtual.provider.AbstractVirtualProvider; |
| 36 | import org.onosproject.incubator.net.virtual.provider.VirtualPacketProvider; |
| 37 | import org.onosproject.incubator.net.virtual.provider.VirtualPacketProviderService; |
| 38 | import org.onosproject.net.ConnectPoint; |
| 39 | import org.onosproject.net.PortNumber; |
| 40 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 41 | import org.onosproject.net.flow.TrafficTreatment; |
| 42 | import org.onosproject.net.flow.instructions.Instruction; |
| 43 | import org.onosproject.net.flow.instructions.Instructions; |
| 44 | import org.onosproject.net.packet.DefaultInboundPacket; |
| 45 | import org.onosproject.net.packet.DefaultOutboundPacket; |
| 46 | import org.onosproject.net.packet.InboundPacket; |
| 47 | import org.onosproject.net.packet.OutboundPacket; |
| 48 | import org.onosproject.net.packet.PacketContext; |
| 49 | import org.onosproject.net.packet.PacketProcessor; |
| 50 | import org.onosproject.net.packet.PacketService; |
| 51 | import org.onosproject.net.provider.ProviderId; |
| 52 | import org.osgi.service.component.ComponentContext; |
| 53 | import org.slf4j.Logger; |
| 54 | |
| 55 | import java.nio.ByteBuffer; |
| 56 | import java.util.Dictionary; |
| 57 | import java.util.HashSet; |
| 58 | import java.util.Map; |
| 59 | import java.util.Optional; |
| 60 | import java.util.Set; |
| 61 | import java.util.stream.Collectors; |
| 62 | |
| 63 | import static org.slf4j.LoggerFactory.getLogger; |
| 64 | |
| 65 | @Component(immediate = true) |
| 66 | public class DefaultVirtualPacketProvider extends AbstractVirtualProvider |
| 67 | implements VirtualPacketProvider { |
| 68 | |
| 69 | private static final int PACKET_PROCESSOR_PRIORITY = 1; |
| 70 | |
| 71 | private final Logger log = getLogger(getClass()); |
| 72 | |
| 73 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 74 | protected VirtualPacketProviderService virtualPacketProviderService; |
| 75 | |
| 76 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 77 | protected PacketService packetService; |
| 78 | |
| 79 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 80 | protected CoreService coreService; |
| 81 | |
| 82 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 83 | protected VirtualPacketProviderService providerService; |
| 84 | |
| 85 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 86 | protected VirtualNetworkAdminService virtualNetworkAdminService; |
| 87 | |
| 88 | |
| 89 | ApplicationId appId; |
| 90 | InternalPacketProcessor processor; |
| 91 | |
| 92 | Map<VirtualPacketContext, PacketContext> contextMap; |
| 93 | |
| 94 | /** |
| 95 | * Creates a provider with the supplied identifier. |
| 96 | * |
| 97 | */ |
| 98 | public DefaultVirtualPacketProvider() { |
| 99 | super(new ProviderId("virtual-packet", |
| 100 | "org.onosproject.virtual.virtual-packet")); |
| 101 | } |
| 102 | |
| 103 | @Activate |
| 104 | public void activate() { |
| 105 | appId = coreService.registerApplication( |
| 106 | "org.onosproject.provider.virtual-packet-provider"); |
| 107 | |
| 108 | processor = new InternalPacketProcessor(); |
| 109 | packetService.addProcessor(processor, PACKET_PROCESSOR_PRIORITY); |
| 110 | |
| 111 | contextMap = Maps.newConcurrentMap(); |
| 112 | |
| 113 | log.info("Started"); |
| 114 | } |
| 115 | |
| 116 | @Deactivate |
| 117 | public void deactivate() { |
| 118 | packetService.removeProcessor(processor); |
| 119 | } |
| 120 | |
| 121 | @Modified |
| 122 | protected void modified(ComponentContext context) { |
| 123 | Dictionary<?, ?> properties = context.getProperties(); |
| 124 | } |
| 125 | |
| 126 | |
| 127 | @Override |
| 128 | public void emit(NetworkId networkId, OutboundPacket packet) { |
| 129 | packetService.emit(devirtualize(networkId, packet)); |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * Translate the requested physical PacketContext into a virtual PacketContext. |
| 134 | * See {@link org.onosproject.net.packet.OutboundPacket} |
| 135 | * |
| 136 | * @param context A physical PacketContext be translated |
| 137 | * @return A translated virtual PacketContext |
| 138 | */ |
| 139 | private Set<VirtualPacketContext> virtualize(PacketContext context) { |
| 140 | Set<VirtualPacketContext> outContext = new HashSet<>(); |
| 141 | |
| 142 | Set<TenantId> tIds = virtualNetworkAdminService.getTenantIds(); |
| 143 | |
| 144 | Set<VirtualNetwork> vNetworks = new HashSet<>(); |
| 145 | tIds.stream() |
| 146 | .map(tid -> virtualNetworkAdminService |
| 147 | .getVirtualNetworks(tid)) |
| 148 | .forEach(vNetworks::addAll); |
| 149 | |
| 150 | Set<VirtualDevice> vDevices = new HashSet<>(); |
| 151 | vNetworks.stream() |
| 152 | .map(network -> virtualNetworkAdminService |
| 153 | .getVirtualDevices(network.id())) |
| 154 | .forEach(vDevices::addAll); |
| 155 | |
| 156 | Set<VirtualPort> vPorts = new HashSet<>(); |
| 157 | vDevices.stream() |
| 158 | .map(dev -> virtualNetworkAdminService |
| 159 | .getVirtualPorts(dev.networkId(), dev.id())) |
| 160 | .forEach(vPorts::addAll); |
| 161 | |
| 162 | ConnectPoint inCp = context.inPacket().receivedFrom(); |
| 163 | |
| 164 | Set<VirtualPort> inVports = vPorts.stream() |
| 165 | .filter(vp -> vp.realizedBy().equals(inCp)) |
| 166 | .collect(Collectors.toSet()); |
| 167 | |
| 168 | for (VirtualPort vPort : inVports) { |
| 169 | ConnectPoint cp = new ConnectPoint(vPort.element().id(), |
| 170 | vPort.number()); |
| 171 | |
| 172 | Ethernet eth = context.inPacket().parsed(); |
| 173 | eth.setVlanID(Ethernet.VLAN_UNTAGGED); |
| 174 | |
| 175 | InboundPacket inPacket = |
| 176 | new DefaultInboundPacket(cp, eth, |
| 177 | ByteBuffer.wrap(eth.serialize())); |
| 178 | |
| 179 | VirtualPacketContext vContext = |
| 180 | new VirtualPacketContext(context.time(), inPacket, null, |
| 181 | false, vPort.networkId(), |
| 182 | this); |
| 183 | |
| 184 | contextMap.put(vContext, context); |
| 185 | outContext.add(vContext); |
| 186 | } |
| 187 | |
| 188 | return outContext; |
| 189 | } |
| 190 | |
| 191 | /** |
| 192 | * Translate the requested a virtual outbound packet into |
| 193 | * a physical OutboundPacket. |
| 194 | * See {@link org.onosproject.net.packet.PacketContext} |
| 195 | * |
| 196 | * @param packet A OutboundPacket to be translated |
| 197 | * @return de-virtualized (physical) OutboundPacket |
| 198 | */ |
| 199 | private OutboundPacket devirtualize(NetworkId networkId, OutboundPacket packet) { |
| 200 | Set<VirtualPort> vPorts = virtualNetworkAdminService |
| 201 | .getVirtualPorts(networkId, packet.sendThrough()); |
| 202 | |
| 203 | PortNumber vOutPortNum = packet.treatment().allInstructions().stream() |
| 204 | .filter(i -> i.type() == Instruction.Type.OUTPUT) |
| 205 | .map(i -> ((Instructions.OutputInstruction) i).port()) |
| 206 | .findFirst().get(); |
| 207 | |
| 208 | Optional<ConnectPoint> optionalCpOut = vPorts.stream() |
| 209 | .filter(v -> v.number().equals(vOutPortNum)) |
| 210 | .map(v -> v.realizedBy()) |
| 211 | .findFirst(); |
| 212 | if (!optionalCpOut.isPresent()) { |
| 213 | log.info("Port {} is not realized yet, in Network {}, Device {}", |
| 214 | vOutPortNum, networkId, packet.sendThrough()); |
| 215 | return null; |
| 216 | } |
| 217 | ConnectPoint egressPoint = optionalCpOut.get(); |
| 218 | |
| 219 | TrafficTreatment.Builder commonTreatmentBuilder |
| 220 | = DefaultTrafficTreatment.builder(); |
| 221 | packet.treatment().allInstructions().stream() |
| 222 | .filter(i -> i.type() != Instruction.Type.OUTPUT) |
| 223 | .forEach(i -> commonTreatmentBuilder.add(i)); |
| 224 | TrafficTreatment commonTreatment = commonTreatmentBuilder.build(); |
| 225 | |
| 226 | TrafficTreatment treatment = DefaultTrafficTreatment |
| 227 | .builder(commonTreatment) |
| 228 | .setOutput(egressPoint.port()).build(); |
| 229 | |
| 230 | OutboundPacket outboundPacket = new DefaultOutboundPacket( |
| 231 | egressPoint.deviceId(), treatment, packet.data()); |
| 232 | return outboundPacket; |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * Translate the requested a virtual Packet Context into |
| 237 | * a physical Packet Context. |
| 238 | * This method is designed to support Context's send() method that invoked |
| 239 | * by applications. |
| 240 | * See {@link org.onosproject.net.packet.PacketContext} |
| 241 | * |
| 242 | * @param context A handled packet context |
| 243 | * @return de-virtualized (physical) PacketContext |
| 244 | */ |
| 245 | public PacketContext devirtualizeContext(VirtualPacketContext context) { |
| 246 | NetworkId networkId = context.getNetworkId(); |
| 247 | |
| 248 | OutboundPacket op = devirtualize(networkId, context.outPacket()); |
| 249 | |
| 250 | PacketContext packetContext = contextMap.get(context); |
| 251 | |
| 252 | TrafficTreatment.Builder treatmentBuilder |
| 253 | = packetContext.treatmentBuilder(); |
| 254 | if (op.treatment() != null) { |
| 255 | op.treatment().allInstructions().forEach(treatmentBuilder::add); |
| 256 | } |
| 257 | |
| 258 | return packetContext; |
| 259 | } |
| 260 | |
| 261 | private final class InternalPacketProcessor implements PacketProcessor { |
| 262 | |
| 263 | @Override |
| 264 | public void process(PacketContext context) { |
| 265 | Set<VirtualPacketContext> vContexts = virtualize(context); |
| 266 | vContexts.forEach(vpc -> virtualPacketProviderService |
| 267 | .processPacket(vpc.getNetworkId(), |
| 268 | vpc)); |
| 269 | } |
| 270 | } |
| 271 | } |