Hyunsun Moon | b974fca | 2016-06-30 21:20:39 -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.openstacknetworking.switching; |
| 18 | |
| 19 | import org.apache.felix.scr.annotations.Activate; |
| 20 | import org.apache.felix.scr.annotations.Component; |
| 21 | import org.apache.felix.scr.annotations.Deactivate; |
| 22 | import org.apache.felix.scr.annotations.Reference; |
| 23 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 24 | import org.onlab.packet.Ethernet; |
| 25 | import org.onlab.packet.Ip4Address; |
| 26 | import org.onlab.packet.IpAddress; |
| 27 | import org.onosproject.net.Device; |
| 28 | import org.onosproject.net.DeviceId; |
| 29 | import org.onosproject.net.Host; |
| 30 | import org.onosproject.net.PortNumber; |
| 31 | import org.onosproject.net.behaviour.ExtensionTreatmentResolver; |
| 32 | import org.onosproject.net.device.DeviceService; |
| 33 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 34 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 35 | import org.onosproject.net.flow.TrafficSelector; |
| 36 | import org.onosproject.net.flow.TrafficTreatment; |
| 37 | import org.onosproject.net.flow.instructions.ExtensionTreatment; |
| 38 | import org.onosproject.net.flow.instructions.ExtensionPropertyException; |
| 39 | import org.onosproject.net.flowobjective.DefaultForwardingObjective; |
| 40 | import org.onosproject.net.flowobjective.FlowObjectiveService; |
| 41 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 42 | import org.onosproject.openstacknode.OpenstackNodeService; |
| 43 | import org.slf4j.Logger; |
| 44 | import org.slf4j.LoggerFactory; |
| 45 | |
| 46 | import java.util.Objects; |
| 47 | import java.util.Optional; |
| 48 | |
| 49 | import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_SET_TUNNEL_DST; |
sangho | 6032f34 | 2016-07-07 14:32:03 +0900 | [diff] [blame] | 50 | import static org.onosproject.openstacknetworking.Constants.*; |
Hyunsun Moon | b974fca | 2016-06-30 21:20:39 -0700 | [diff] [blame] | 51 | |
| 52 | /** |
| 53 | * Populates switching flow rules. |
| 54 | */ |
| 55 | @Component(immediate = true) |
| 56 | public final class OpenstackSwitchingRulePopulator extends AbstractVmHandler { |
| 57 | |
| 58 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 59 | |
| 60 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 61 | protected DeviceService deviceService; |
| 62 | |
| 63 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 64 | protected FlowObjectiveService flowObjectiveService; |
| 65 | |
| 66 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 67 | protected OpenstackNodeService nodeService; |
| 68 | |
| 69 | |
| 70 | private static final String TUNNEL_DST = "tunnelDst"; |
| 71 | |
| 72 | @Activate |
| 73 | protected void activate() { |
| 74 | super.activate(); |
| 75 | } |
| 76 | |
| 77 | @Deactivate |
| 78 | protected void deactivate() { |
| 79 | super.deactivate(); |
| 80 | } |
| 81 | |
| 82 | private void populateSwitchingRules(Host host) { |
| 83 | populateFlowRulesForTunnelTag(host); |
| 84 | populateFlowRulesForTrafficToSameCnode(host); |
| 85 | populateFlowRulesForTrafficToDifferentCnode(host); |
| 86 | |
| 87 | log.debug("Populated switching rule for {}", host); |
| 88 | } |
| 89 | |
| 90 | private void populateFlowRulesForTunnelTag(Host host) { |
| 91 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 92 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 93 | |
| 94 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 95 | .matchInPort(host.location().port()); |
| 96 | |
| 97 | tBuilder.setTunnelId(Long.valueOf(getVni(host))); |
| 98 | |
| 99 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 100 | .withSelector(sBuilder.build()) |
| 101 | .withTreatment(tBuilder.build()) |
| 102 | .withPriority(TUNNELTAG_RULE_PRIORITY) |
| 103 | .withFlag(ForwardingObjective.Flag.SPECIFIC) |
| 104 | .fromApp(appId) |
| 105 | .add(); |
| 106 | |
| 107 | flowObjectiveService.forward(host.location().deviceId(), fo); |
| 108 | } |
| 109 | |
| 110 | private void populateFlowRulesForTrafficToSameCnode(Host host) { |
| 111 | //For L2 Switching Case |
| 112 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 113 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 114 | |
| 115 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 116 | .matchIPDst(getIp(host).toIpPrefix()) |
| 117 | .matchTunnelId(Long.valueOf(getVni(host))); |
| 118 | |
| 119 | tBuilder.setOutput(host.location().port()); |
| 120 | |
| 121 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 122 | .withSelector(sBuilder.build()) |
| 123 | .withTreatment(tBuilder.build()) |
| 124 | .withPriority(SWITCHING_RULE_PRIORITY) |
| 125 | .withFlag(ForwardingObjective.Flag.SPECIFIC) |
| 126 | .fromApp(appId) |
| 127 | .add(); |
| 128 | |
| 129 | flowObjectiveService.forward(host.location().deviceId(), fo); |
| 130 | } |
| 131 | |
| 132 | private void populateFlowRulesForTrafficToDifferentCnode(Host host) { |
| 133 | Ip4Address localVmIp = getIp(host); |
| 134 | DeviceId localDeviceId = host.location().deviceId(); |
| 135 | Optional<IpAddress> localDataIp = nodeService.dataIp(localDeviceId); |
| 136 | |
| 137 | if (!localDataIp.isPresent()) { |
| 138 | log.debug("Failed to get data IP for device {}", |
| 139 | host.location().deviceId()); |
| 140 | return; |
| 141 | } |
| 142 | |
| 143 | String vni = getVni(host); |
| 144 | getVmsInDifferentCnode(host).forEach(remoteVm -> { |
| 145 | Optional<IpAddress> remoteDataIp = nodeService.dataIp(remoteVm.location().deviceId()); |
| 146 | if (remoteDataIp.isPresent()) { |
| 147 | setVxLanFlowRule(vni, |
| 148 | localDeviceId, |
| 149 | remoteDataIp.get().getIp4Address(), |
| 150 | getIp(remoteVm)); |
| 151 | |
| 152 | setVxLanFlowRule(vni, |
| 153 | remoteVm.location().deviceId(), |
| 154 | localDataIp.get().getIp4Address(), |
| 155 | localVmIp); |
| 156 | } |
| 157 | }); |
| 158 | } |
| 159 | |
| 160 | private void setVxLanFlowRule(String vni, DeviceId deviceId, Ip4Address remoteIp, |
| 161 | Ip4Address vmIp) { |
| 162 | Optional<PortNumber> tunnelPort = nodeService.tunnelPort(deviceId); |
| 163 | if (!tunnelPort.isPresent()) { |
| 164 | log.warn("Failed to get tunnel port from {}", deviceId); |
| 165 | return; |
| 166 | } |
| 167 | |
| 168 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 169 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 170 | |
| 171 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 172 | .matchTunnelId(Long.parseLong(vni)) |
| 173 | .matchIPDst(vmIp.toIpPrefix()); |
| 174 | tBuilder.extension(buildNiciraExtenstion(deviceId, remoteIp), deviceId) |
| 175 | .setOutput(tunnelPort.get()); |
| 176 | |
| 177 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 178 | .withSelector(sBuilder.build()) |
| 179 | .withTreatment(tBuilder.build()) |
| 180 | .withPriority(SWITCHING_RULE_PRIORITY) |
| 181 | .withFlag(ForwardingObjective.Flag.SPECIFIC) |
| 182 | .fromApp(appId) |
| 183 | .add(); |
| 184 | |
| 185 | flowObjectiveService.forward(deviceId, fo); |
| 186 | } |
| 187 | |
| 188 | private void removeSwitchingRules(Host host) { |
| 189 | removeFlowRuleForTunnelTag(host); |
| 190 | removeFlowRuleForVMsInSameCnode(host); |
| 191 | removeFlowRuleForVMsInDiffrentCnode(host); |
| 192 | |
| 193 | log.debug("Removed switching rule for {}", host); |
| 194 | } |
| 195 | |
| 196 | private void removeFlowRuleForTunnelTag(Host host) { |
| 197 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 198 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 199 | |
| 200 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 201 | .matchInPort(host.location().port()); |
| 202 | |
| 203 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 204 | .withSelector(sBuilder.build()) |
| 205 | .withTreatment(tBuilder.build()) |
| 206 | .withPriority(TUNNELTAG_RULE_PRIORITY) |
| 207 | .withFlag(ForwardingObjective.Flag.SPECIFIC) |
| 208 | .fromApp(appId) |
| 209 | .remove(); |
| 210 | |
| 211 | flowObjectiveService.forward(host.location().deviceId(), fo); |
| 212 | } |
| 213 | |
| 214 | private void removeFlowRuleForVMsInSameCnode(Host host) { |
| 215 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 216 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 217 | .matchIPDst(getIp(host).toIpPrefix()) |
| 218 | .matchTunnelId(Long.valueOf(getVni(host))); |
| 219 | |
| 220 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 221 | .withSelector(sBuilder.build()) |
| 222 | .withTreatment(DefaultTrafficTreatment.builder().build()) |
| 223 | .withFlag(ForwardingObjective.Flag.SPECIFIC) |
| 224 | .withPriority(SWITCHING_RULE_PRIORITY) |
| 225 | .fromApp(appId) |
| 226 | .remove(); |
| 227 | |
| 228 | flowObjectiveService.forward(host.location().deviceId(), fo); |
| 229 | } |
| 230 | |
| 231 | private void removeFlowRuleForVMsInDiffrentCnode(Host host) { |
| 232 | DeviceId deviceId = host.location().deviceId(); |
| 233 | final boolean anyPortRemainedInSameCnode = hostService.getConnectedHosts(deviceId) |
| 234 | .stream() |
| 235 | .filter(this::isValidHost) |
| 236 | .anyMatch(h -> Objects.equals(getVni(h), getVni(host))); |
| 237 | |
| 238 | getVmsInDifferentCnode(host).forEach(h -> { |
| 239 | removeVxLanFlowRule(h.location().deviceId(), getIp(host), getVni(host)); |
| 240 | if (!anyPortRemainedInSameCnode) { |
| 241 | removeVxLanFlowRule(deviceId, getIp(h), getVni(host)); |
| 242 | } |
| 243 | }); |
| 244 | } |
| 245 | |
| 246 | private void removeVxLanFlowRule(DeviceId deviceId, Ip4Address vmIp, String vni) { |
| 247 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 248 | |
| 249 | sBuilder.matchEthType(Ethernet.TYPE_IPV4) |
| 250 | .matchTunnelId(Long.valueOf(vni)) |
| 251 | .matchIPDst(vmIp.toIpPrefix()); |
| 252 | |
| 253 | ForwardingObjective fo = DefaultForwardingObjective.builder() |
| 254 | .withSelector(sBuilder.build()) |
| 255 | .withTreatment(DefaultTrafficTreatment.builder().build()) |
| 256 | .withFlag(ForwardingObjective.Flag.SPECIFIC) |
| 257 | .withPriority(SWITCHING_RULE_PRIORITY) |
| 258 | .fromApp(appId) |
| 259 | .remove(); |
| 260 | |
| 261 | flowObjectiveService.forward(deviceId, fo); |
| 262 | } |
| 263 | |
| 264 | private ExtensionTreatment buildNiciraExtenstion(DeviceId deviceId, Ip4Address remoteIp) { |
| 265 | Device device = deviceService.getDevice(deviceId); |
| 266 | if (device != null && !device.is(ExtensionTreatmentResolver.class)) { |
| 267 | log.error("The extension treatment is not supported"); |
| 268 | return null; |
| 269 | } |
| 270 | |
| 271 | ExtensionTreatmentResolver resolver = device.as(ExtensionTreatmentResolver.class); |
| 272 | ExtensionTreatment treatment = resolver.getExtensionInstruction(NICIRA_SET_TUNNEL_DST.type()); |
| 273 | try { |
| 274 | treatment.setPropertyValue(TUNNEL_DST, remoteIp); |
| 275 | return treatment; |
| 276 | } catch (ExtensionPropertyException e) { |
| 277 | log.warn("Failed to get tunnelDst extension treatment for {}", deviceId); |
| 278 | return null; |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | @Override |
| 283 | protected void hostDetected(Host host) { |
| 284 | populateSwitchingRules(host); |
| 285 | log.info("Added new virtual machine to switching service {}", host); |
| 286 | } |
| 287 | |
| 288 | @Override |
| 289 | protected void hostRemoved(Host host) { |
| 290 | removeSwitchingRules(host); |
| 291 | log.info("Removed virtual machine from switching service {}", host); |
| 292 | } |
| 293 | } |