Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019-present Open Networking Foundation |
| 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 | package org.onosproject.k8snetworking.impl; |
| 17 | |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 18 | import com.google.common.collect.ImmutableSet; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 19 | import com.google.common.collect.Maps; |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 20 | import com.google.common.collect.Sets; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 21 | import io.fabric8.kubernetes.api.model.LabelSelectorRequirement; |
| 22 | import io.fabric8.kubernetes.api.model.Namespace; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 23 | import io.fabric8.kubernetes.api.model.Pod; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 24 | import io.fabric8.kubernetes.api.model.Service; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 25 | import io.fabric8.kubernetes.api.model.networking.NetworkPolicy; |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 26 | import io.fabric8.kubernetes.api.model.networking.NetworkPolicyEgressRule; |
| 27 | import io.fabric8.kubernetes.api.model.networking.NetworkPolicyIngressRule; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 28 | import io.fabric8.kubernetes.api.model.networking.NetworkPolicyPeer; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 29 | import io.fabric8.kubernetes.api.model.networking.NetworkPolicyPort; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 30 | import org.onlab.packet.IPv4; |
| 31 | import org.onlab.packet.IpAddress; |
| 32 | import org.onlab.packet.IpPrefix; |
| 33 | import org.onlab.packet.TpPort; |
| 34 | import org.onosproject.cfg.ComponentConfigService; |
| 35 | import org.onosproject.cluster.ClusterService; |
| 36 | import org.onosproject.cluster.LeadershipService; |
| 37 | import org.onosproject.cluster.NodeId; |
| 38 | import org.onosproject.core.ApplicationId; |
| 39 | import org.onosproject.core.CoreService; |
| 40 | import org.onosproject.k8snetworking.api.K8sFlowRuleService; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 41 | import org.onosproject.k8snetworking.api.K8sNamespaceEvent; |
| 42 | import org.onosproject.k8snetworking.api.K8sNamespaceListener; |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 43 | import org.onosproject.k8snetworking.api.K8sNamespaceService; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 44 | import org.onosproject.k8snetworking.api.K8sNetworkPolicyEvent; |
| 45 | import org.onosproject.k8snetworking.api.K8sNetworkPolicyListener; |
| 46 | import org.onosproject.k8snetworking.api.K8sNetworkPolicyService; |
| 47 | import org.onosproject.k8snetworking.api.K8sNetworkService; |
| 48 | import org.onosproject.k8snetworking.api.K8sPodEvent; |
| 49 | import org.onosproject.k8snetworking.api.K8sPodListener; |
| 50 | import org.onosproject.k8snetworking.api.K8sPodService; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 51 | import org.onosproject.k8snetworking.api.K8sServiceEvent; |
| 52 | import org.onosproject.k8snetworking.api.K8sServiceListener; |
| 53 | import org.onosproject.k8snetworking.api.K8sServiceService; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 54 | import org.onosproject.k8snode.api.K8sNodeService; |
| 55 | import org.onosproject.net.device.DeviceService; |
| 56 | import org.onosproject.net.driver.DriverService; |
| 57 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 58 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 59 | import org.onosproject.net.flow.TrafficSelector; |
| 60 | import org.onosproject.net.flow.TrafficTreatment; |
| 61 | import org.onosproject.store.service.StorageService; |
| 62 | import org.osgi.service.component.annotations.Activate; |
| 63 | import org.osgi.service.component.annotations.Component; |
| 64 | import org.osgi.service.component.annotations.Deactivate; |
| 65 | import org.osgi.service.component.annotations.Reference; |
| 66 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 67 | import org.slf4j.Logger; |
| 68 | |
| 69 | import java.util.List; |
| 70 | import java.util.Map; |
| 71 | import java.util.Objects; |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 72 | import java.util.Set; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 73 | import java.util.concurrent.ExecutorService; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 74 | import java.util.concurrent.atomic.AtomicReference; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 75 | |
| 76 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 77 | import static org.onlab.packet.Ethernet.TYPE_IPV4; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 78 | import static org.onlab.util.Tools.groupedThreads; |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 79 | import static org.onosproject.k8snetworking.api.Constants.ACL_EGRESS_BLACK_TABLE; |
| 80 | import static org.onosproject.k8snetworking.api.Constants.ACL_EGRESS_WHITE_TABLE; |
| 81 | import static org.onosproject.k8snetworking.api.Constants.ACL_INGRESS_BLACK_TABLE; |
| 82 | import static org.onosproject.k8snetworking.api.Constants.ACL_INGRESS_WHITE_TABLE; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 83 | import static org.onosproject.k8snetworking.api.Constants.ACL_TABLE; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 84 | import static org.onosproject.k8snetworking.api.Constants.DEFAULT_METADATA_MASK; |
| 85 | import static org.onosproject.k8snetworking.api.Constants.DEFAULT_NAMESPACE_HASH; |
| 86 | import static org.onosproject.k8snetworking.api.Constants.DEFAULT_SEGMENT_ID; |
| 87 | import static org.onosproject.k8snetworking.api.Constants.GROUPING_TABLE; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 88 | import static org.onosproject.k8snetworking.api.Constants.K8S_NETWORKING_APP_ID; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 89 | import static org.onosproject.k8snetworking.api.Constants.NAMESPACE_TABLE; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 90 | import static org.onosproject.k8snetworking.api.Constants.PRIORITY_CIDR_RULE; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 91 | import static org.onosproject.k8snetworking.api.Constants.PRIORITY_NAMESPACE_RULE; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 92 | import static org.onosproject.k8snetworking.api.Constants.ROUTING_TABLE; |
| 93 | import static org.onosproject.k8snetworking.api.Constants.SHIFTED_IP_PREFIX; |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 94 | import static org.onosproject.k8snetworking.impl.OsgiPropertyConstants.SERVICE_IP_CIDR_DEFAULT; |
| 95 | import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.namespaceHashByNamespace; |
| 96 | import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.namespaceHashByPodIp; |
| 97 | import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.namespaceHashByServiceIp; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 98 | import static org.onosproject.k8snetworking.util.K8sNetworkingUtil.shiftIpDomain; |
| 99 | import static org.slf4j.LoggerFactory.getLogger; |
| 100 | |
| 101 | /** |
| 102 | * Handles the ACL by referring to the network policy defined through kubernetes. |
| 103 | */ |
| 104 | @Component(immediate = true) |
| 105 | public class K8sNetworkPolicyHandler { |
| 106 | |
| 107 | private final Logger log = getLogger(getClass()); |
| 108 | |
| 109 | private static final String DIRECTION_INGRESS = "ingress"; |
| 110 | private static final String DIRECTION_EGRESS = "egress"; |
| 111 | |
| 112 | private static final String PROTOCOL_TCP = "tcp"; |
| 113 | private static final String PROTOCOL_UDP = "udp"; |
| 114 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 115 | private static final String KUBE_SYSTEM = "kube-system"; |
| 116 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 117 | private static final int HOST_PREFIX = 32; |
| 118 | |
| 119 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 120 | protected CoreService coreService; |
| 121 | |
| 122 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 123 | protected LeadershipService leadershipService; |
| 124 | |
| 125 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 126 | protected ClusterService clusterService; |
| 127 | |
| 128 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 129 | protected DriverService driverService; |
| 130 | |
| 131 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 132 | protected DeviceService deviceService; |
| 133 | |
| 134 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 135 | protected ComponentConfigService configService; |
| 136 | |
| 137 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 138 | protected StorageService storageService; |
| 139 | |
| 140 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 141 | protected K8sNetworkService k8sNetworkService; |
| 142 | |
| 143 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 144 | protected K8sFlowRuleService k8sFlowRuleService; |
| 145 | |
| 146 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 147 | protected K8sNodeService k8sNodeService; |
| 148 | |
| 149 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 150 | protected K8sPodService k8sPodService; |
| 151 | |
| 152 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 153 | protected K8sServiceService k8sServiceService; |
| 154 | |
| 155 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 156 | protected K8sNetworkPolicyService k8sNetworkPolicyService; |
| 157 | |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 158 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 159 | protected K8sNamespaceService k8sNamespaceService; |
| 160 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 161 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 162 | groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| 163 | private final InternalPodListener internalPodListener = |
| 164 | new InternalPodListener(); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 165 | private final InternalServiceListener internalServiceListener = |
| 166 | new InternalServiceListener(); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 167 | private final InternalNetworkPolicyListener internalNetworkPolicyListener = |
| 168 | new InternalNetworkPolicyListener(); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 169 | private final InternalNamespaceListener internalNamespaceListener = |
| 170 | new InternalNamespaceListener(); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 171 | |
| 172 | private ApplicationId appId; |
| 173 | private NodeId localNodeId; |
| 174 | |
| 175 | @Activate |
| 176 | protected void activate() { |
| 177 | appId = coreService.registerApplication(K8S_NETWORKING_APP_ID); |
| 178 | |
| 179 | localNodeId = clusterService.getLocalNode().id(); |
| 180 | leadershipService.runForLeadership(appId.name()); |
| 181 | k8sPodService.addListener(internalPodListener); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 182 | k8sServiceService.addListener(internalServiceListener); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 183 | k8sNetworkPolicyService.addListener(internalNetworkPolicyListener); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 184 | k8sNamespaceService.addListener(internalNamespaceListener); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 185 | |
| 186 | log.info("Started"); |
| 187 | } |
| 188 | |
| 189 | @Deactivate |
| 190 | protected void deactivate() { |
| 191 | leadershipService.withdraw(appId.name()); |
| 192 | k8sPodService.removeListener(internalPodListener); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 193 | k8sServiceService.removeListener(internalServiceListener); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 194 | k8sNetworkPolicyService.removeListener(internalNetworkPolicyListener); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 195 | k8sNamespaceService.removeListener(internalNamespaceListener); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 196 | eventExecutor.shutdown(); |
| 197 | |
| 198 | log.info("Stopped"); |
| 199 | } |
| 200 | |
| 201 | private void setBlockRulesByPolicy(NetworkPolicy policy, boolean install) { |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 202 | final Map<String, List<String>> filter = Maps.newConcurrentMap(); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 203 | |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 204 | k8sPodService.pods().forEach(pod -> |
| 205 | filter.putAll(getBlockRuleFilter(pod, policy))); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 206 | |
| 207 | setBlockRules(filter, install); |
| 208 | } |
| 209 | |
| 210 | private void setBlockRulesByPod(Pod pod, boolean install) { |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 211 | final Map<String, List<String>> filter = Maps.newConcurrentMap(); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 212 | |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 213 | k8sNetworkPolicyService.networkPolicies().forEach(policy -> |
| 214 | filter.putAll(getBlockRuleFilter(pod, policy))); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 215 | |
| 216 | setBlockRules(filter, install); |
| 217 | } |
| 218 | |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 219 | private Map<String, List<String>> getBlockRuleFilter(Pod pod, NetworkPolicy policy) { |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 220 | |
| 221 | // if the POD is not included in the namespace of the given policy, |
| 222 | // we do not block the POD |
| 223 | if (!pod.getMetadata().getNamespace().equals(policy.getMetadata().getNamespace())) { |
| 224 | return Maps.newConcurrentMap(); |
| 225 | } |
| 226 | |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 227 | Map<String, String> labels = policy.getSpec().getPodSelector().getMatchLabels(); |
| 228 | Map<String, List<String>> filter = Maps.newConcurrentMap(); |
| 229 | String podIp = pod.getStatus().getPodIP(); |
| 230 | List<String> policyTypes = policy.getSpec().getPolicyTypes(); |
| 231 | |
| 232 | if (podIp != null && policyTypes != null) { |
| 233 | if (labels == null) { |
| 234 | filter.put(podIp, policyTypes); |
| 235 | } else { |
| 236 | pod.getMetadata().getLabels().forEach((k, v) -> { |
| 237 | if (labels.get(k) != null && labels.get(k).equals(v)) { |
| 238 | filter.put(podIp, policyTypes); |
| 239 | } |
| 240 | }); |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | return filter; |
| 245 | } |
| 246 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 247 | private void setBlockRules(Map<String, List<String>> filter, boolean install) { |
| 248 | filter.forEach((k, v) -> { |
| 249 | v.forEach(d -> { |
| 250 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 251 | .matchEthType(TYPE_IPV4); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 252 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 253 | |
| 254 | Integer nsHash = namespaceHashByPodIp(k8sPodService, k8sNamespaceService, k); |
| 255 | if (nsHash != null) { |
| 256 | tBuilder.setTunnelId(nsHash); |
| 257 | } |
| 258 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 259 | if (d.equalsIgnoreCase(DIRECTION_INGRESS)) { |
| 260 | sBuilder.matchIPDst(IpPrefix.valueOf(IpAddress.valueOf(k), HOST_PREFIX)); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 261 | tBuilder.transition(ACL_INGRESS_WHITE_TABLE); |
Jian Li | 6b9bf56 | 2019-07-30 17:10:39 +0900 | [diff] [blame^] | 262 | setPolicyRulesBase(sBuilder, tBuilder, ACL_TABLE, install); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 263 | } else if (d.equalsIgnoreCase(DIRECTION_EGRESS)) { |
Jian Li | 6b9bf56 | 2019-07-30 17:10:39 +0900 | [diff] [blame^] | 264 | // original IP |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 265 | sBuilder.matchIPSrc(IpPrefix.valueOf(IpAddress.valueOf(k), HOST_PREFIX)); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 266 | tBuilder.transition(ACL_EGRESS_WHITE_TABLE); |
Jian Li | 6b9bf56 | 2019-07-30 17:10:39 +0900 | [diff] [blame^] | 267 | setPolicyRulesBase(sBuilder, tBuilder, ACL_TABLE, install); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 268 | |
Jian Li | 6b9bf56 | 2019-07-30 17:10:39 +0900 | [diff] [blame^] | 269 | |
| 270 | // shifted IP |
| 271 | sBuilder.matchIPSrc(IpPrefix.valueOf(IpAddress.valueOf( |
| 272 | shiftIpDomain(k, SHIFTED_IP_PREFIX)), HOST_PREFIX)); |
| 273 | setPolicyRulesBase(sBuilder, tBuilder, ACL_TABLE, install); |
| 274 | } |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 275 | }); |
| 276 | }); |
| 277 | } |
| 278 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 279 | private void setDefaultAllowNamespaceRules(Namespace namespace, boolean install) { |
| 280 | |
| 281 | String ns = namespace.getMetadata().getName(); |
| 282 | if (KUBE_SYSTEM.equalsIgnoreCase(ns)) { |
| 283 | setAllowNamespaceRulesBase(0, namespace.hashCode(), |
| 284 | DIRECTION_INGRESS, install); |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | private void setDefaultAllowServiceRules(boolean install) { |
| 289 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 290 | .matchEthType(TYPE_IPV4) |
| 291 | .matchIPSrc(IpPrefix.valueOf(SERVICE_IP_CIDR_DEFAULT)); |
| 292 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| 293 | .setTunnelId(DEFAULT_SEGMENT_ID) |
| 294 | .transition(ROUTING_TABLE); |
| 295 | |
| 296 | setPolicyRulesBase(sBuilder, tBuilder, ACL_INGRESS_WHITE_TABLE, install); |
| 297 | } |
| 298 | |
| 299 | private void setAllowNamespaceRulesBase(int tunnelId, int metadata, |
| 300 | String direction, boolean install) { |
| 301 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 302 | |
| 303 | if (tunnelId != 0) { |
| 304 | sBuilder.matchTunnelId(tunnelId); |
| 305 | } |
| 306 | |
| 307 | sBuilder.matchMetadata(metadata); |
| 308 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| 309 | .setTunnelId(DEFAULT_SEGMENT_ID) |
| 310 | .transition(ROUTING_TABLE); |
| 311 | |
| 312 | int table = 0; |
| 313 | if (DIRECTION_INGRESS.equals(direction)) { |
| 314 | table = ACL_INGRESS_WHITE_TABLE; |
| 315 | } |
| 316 | |
| 317 | setPolicyRulesBase(sBuilder, tBuilder, table, install); |
| 318 | } |
| 319 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 320 | private void setAllowRulesByPolicy(NetworkPolicy policy, boolean install) { |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 321 | Map<String, Map<String, List<NetworkPolicyPort>>> |
| 322 | white = Maps.newConcurrentMap(); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 323 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 324 | int nsHash = namespaceHashByNamespace(k8sNamespaceService, |
| 325 | policy.getMetadata().getNamespace()); |
| 326 | |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 327 | List<NetworkPolicyIngressRule> ingress = policy.getSpec().getIngress(); |
| 328 | if (ingress != null && ingress.size() == 1) { |
| 329 | NetworkPolicyIngressRule rule = ingress.get(0); |
| 330 | if (rule.getFrom().size() == 0 && rule.getPorts().size() == 0) { |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 331 | setAllowAllRule(nsHash, DIRECTION_INGRESS, install); |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 332 | } |
| 333 | } |
| 334 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 335 | policy.getSpec().getIngress().forEach(i -> { |
| 336 | Map<String, List<NetworkPolicyPort>> direction = Maps.newConcurrentMap(); |
| 337 | direction.put(DIRECTION_INGRESS, i.getPorts()); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 338 | i.getFrom().forEach(peer -> { |
| 339 | |
| 340 | // IP block |
| 341 | if (peer.getIpBlock() != null) { |
| 342 | if (peer.getIpBlock().getExcept() != null && |
| 343 | peer.getIpBlock().getExcept().size() > 0) { |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 344 | Map<String, List<NetworkPolicyPort>> |
| 345 | blkDirection = Maps.newConcurrentMap(); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 346 | |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 347 | blkDirection.put(DIRECTION_INGRESS, i.getPorts()); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 348 | white.compute(peer.getIpBlock().getCidr(), (k, v) -> blkDirection); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 349 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 350 | setBlackRules(peer.getIpBlock().getCidr(), DIRECTION_INGRESS, |
| 351 | peer.getIpBlock().getExcept(), install); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 352 | } else { |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 353 | white.compute(peer.getIpBlock().getCidr(), (k, v) -> direction); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 354 | } |
| 355 | } |
| 356 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 357 | // POD selector |
Jian Li | cd93415 | 2019-07-28 21:35:49 +0900 | [diff] [blame] | 358 | Set<Pod> pods = podsFromPolicyPeer(peer, policy.getMetadata().getNamespace()); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 359 | |
| 360 | pods.forEach(pod -> { |
| 361 | white.compute(shiftIpDomain(pod.getStatus().getPodIP(), |
| 362 | SHIFTED_IP_PREFIX) + "/" + HOST_PREFIX, (m, n) -> direction); |
| 363 | white.compute(pod.getStatus().getPodIP() + "/" + HOST_PREFIX, (m, n) -> direction); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 364 | }); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 365 | |
| 366 | // Namespace selector |
| 367 | setAllowNamespaceRules(nsHash, |
| 368 | namespacesByPolicyPeer(peer), DIRECTION_INGRESS, install); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 369 | }); |
| 370 | }); |
| 371 | |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 372 | List<NetworkPolicyEgressRule> egress = policy.getSpec().getEgress(); |
| 373 | if (egress != null && egress.size() == 1) { |
| 374 | NetworkPolicyEgressRule rule = egress.get(0); |
| 375 | if (rule.getTo().size() == 0 && rule.getPorts().size() == 0) { |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 376 | setAllowAllRule(nsHash, DIRECTION_EGRESS, install); |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 377 | } |
| 378 | } |
| 379 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 380 | policy.getSpec().getEgress().forEach(e -> { |
| 381 | Map<String, List<NetworkPolicyPort>> direction = Maps.newConcurrentMap(); |
| 382 | direction.put(DIRECTION_EGRESS, e.getPorts()); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 383 | e.getTo().forEach(peer -> { |
| 384 | |
| 385 | // IP block |
| 386 | if (peer.getIpBlock() != null) { |
| 387 | if (peer.getIpBlock().getExcept() != null && |
| 388 | peer.getIpBlock().getExcept().size() > 0) { |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 389 | |
| 390 | Map<String, List<NetworkPolicyPort>> |
| 391 | blkDirection = Maps.newConcurrentMap(); |
| 392 | blkDirection.put(DIRECTION_EGRESS, e.getPorts()); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 393 | white.compute(peer.getIpBlock().getCidr(), (k, v) -> { |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 394 | if (v != null) { |
| 395 | v.put(DIRECTION_EGRESS, e.getPorts()); |
| 396 | return v; |
| 397 | } else { |
| 398 | return blkDirection; |
| 399 | } |
| 400 | }); |
| 401 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 402 | setBlackRules(peer.getIpBlock().getCidr(), DIRECTION_EGRESS, |
| 403 | peer.getIpBlock().getExcept(), install); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 404 | } else { |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 405 | white.compute(peer.getIpBlock().getCidr(), (k, v) -> { |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 406 | if (v != null) { |
| 407 | v.put(DIRECTION_EGRESS, e.getPorts()); |
| 408 | return v; |
| 409 | } else { |
| 410 | return direction; |
| 411 | } |
| 412 | }); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 413 | } |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 414 | } |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 415 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 416 | // POD selector |
Jian Li | cd93415 | 2019-07-28 21:35:49 +0900 | [diff] [blame] | 417 | Set<Pod> pods = podsFromPolicyPeer(peer, policy.getMetadata().getNamespace()); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 418 | |
| 419 | pods.forEach(pod -> { |
| 420 | white.compute(shiftIpDomain(pod.getStatus().getPodIP(), |
| 421 | SHIFTED_IP_PREFIX) + "/" + HOST_PREFIX, (m, n) -> { |
| 422 | if (n != null) { |
| 423 | n.put(DIRECTION_EGRESS, e.getPorts()); |
| 424 | return n; |
| 425 | } else { |
| 426 | return direction; |
| 427 | } |
| 428 | }); |
| 429 | |
| 430 | white.compute(pod.getStatus().getPodIP() + "/" + HOST_PREFIX, |
| 431 | (m, n) -> { |
| 432 | if (n != null) { |
| 433 | n.put(DIRECTION_EGRESS, e.getPorts()); |
| 434 | return n; |
| 435 | } else { |
| 436 | return direction; |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 437 | } |
| 438 | }); |
| 439 | }); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 440 | |
| 441 | // Namespace selector |
| 442 | setAllowNamespaceRules(nsHash, |
| 443 | namespacesByPolicyPeer(peer), DIRECTION_EGRESS, install); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 444 | }); |
| 445 | }); |
| 446 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 447 | setAllowRules(namespaceHashByNamespace(k8sNamespaceService, |
| 448 | policy.getMetadata().getNamespace()), white, install); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 449 | setBlackToRouteRules(true); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 450 | } |
| 451 | |
Jian Li | cd93415 | 2019-07-28 21:35:49 +0900 | [diff] [blame] | 452 | private Set<Pod> podsFromPolicyPeer(NetworkPolicyPeer peer, String namespace) { |
| 453 | Set<Pod> pods = Sets.newConcurrentHashSet(); |
| 454 | if (peer.getPodSelector() != null) { |
| 455 | Map<String, String> podLabels = peer.getPodSelector().getMatchLabels(); |
| 456 | List<LabelSelectorRequirement> matchExps = peer.getPodSelector().getMatchExpressions(); |
| 457 | |
| 458 | if (podLabels == null && matchExps.size() == 0) { |
| 459 | k8sPodService.pods().stream() |
| 460 | .filter(pod -> pod.getMetadata().getNamespace().equals( |
| 461 | namespace)) |
| 462 | .forEach(pods::add); |
| 463 | } else { |
| 464 | k8sPodService.pods().stream() |
| 465 | .filter(pod -> pod.getMetadata().getNamespace().equals( |
| 466 | namespace)) |
| 467 | .forEach(pod -> { |
| 468 | pod.getMetadata().getLabels().forEach((k, v) -> { |
| 469 | if (podLabels != null && podLabels.get(k) != null && |
| 470 | podLabels.get(k).equals(v)) { |
| 471 | pods.add(pod); |
| 472 | } |
| 473 | }); |
| 474 | }); |
| 475 | } |
| 476 | } |
| 477 | return pods; |
| 478 | } |
| 479 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 480 | private void setAllowRulesByPod(Pod pod, boolean install) { |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 481 | Map<String, Map<String, List<NetworkPolicyPort>>> |
| 482 | white = Maps.newConcurrentMap(); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 483 | AtomicReference<NetworkPolicy> selectedPolicy = new AtomicReference<>(); |
| 484 | k8sNetworkPolicyService.networkPolicies().stream() |
| 485 | .filter(policy -> policy.getMetadata().getNamespace().equals( |
| 486 | pod.getMetadata().getNamespace())) |
| 487 | .forEach(policy -> { |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 488 | String podIp = pod.getStatus().getPodIP(); |
| 489 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 490 | policy.getSpec().getIngress().forEach(i -> { |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 491 | Map<String, List<NetworkPolicyPort>> |
| 492 | direction = Maps.newConcurrentMap(); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 493 | direction.put(DIRECTION_INGRESS, i.getPorts()); |
| 494 | i.getFrom().forEach(peer -> { |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 495 | if (peer.getPodSelector() != null) { |
| 496 | Map<String, String> podLabels = peer.getPodSelector().getMatchLabels(); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 497 | List<LabelSelectorRequirement> matchExps = peer.getPodSelector().getMatchExpressions(); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 498 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 499 | if (podLabels == null && matchExps.size() == 0 && podIp != null) { |
| 500 | white.compute(shiftIpDomain(podIp, SHIFTED_IP_PREFIX) + |
| 501 | "/" + HOST_PREFIX, (m, n) -> direction); |
| 502 | white.compute(podIp + "/" + |
| 503 | HOST_PREFIX, (m, n) -> direction); |
| 504 | |
| 505 | selectedPolicy.set(policy); |
| 506 | } else { |
| 507 | pod.getMetadata().getLabels().forEach((k, v) -> { |
| 508 | if (podLabels != null && podLabels.get(k) != null && |
| 509 | podLabels.get(k).equals(v) && podIp != null) { |
| 510 | white.compute(shiftIpDomain(podIp, SHIFTED_IP_PREFIX) + |
| 511 | "/" + HOST_PREFIX, (m, n) -> direction); |
| 512 | white.compute(podIp + "/" + |
| 513 | HOST_PREFIX, (m, n) -> direction); |
| 514 | |
| 515 | selectedPolicy.set(policy); |
| 516 | } |
| 517 | }); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 518 | } |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 519 | } |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 520 | }); |
| 521 | }); |
| 522 | }); |
| 523 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 524 | k8sNetworkPolicyService.networkPolicies().stream() |
| 525 | .filter(policy -> policy.getMetadata().getNamespace().equals( |
| 526 | pod.getMetadata().getNamespace())) |
| 527 | .forEach(policy -> { |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 528 | String podIp = pod.getStatus().getPodIP(); |
| 529 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 530 | policy.getSpec().getEgress().forEach(e -> { |
| 531 | Map<String, List<NetworkPolicyPort>> direction = Maps.newConcurrentMap(); |
| 532 | direction.put(DIRECTION_EGRESS, e.getPorts()); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 533 | e.getTo().forEach(peer -> { |
| 534 | if (peer.getPodSelector() != null) { |
| 535 | Map<String, String> podLabels = peer.getPodSelector().getMatchLabels(); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 536 | List<LabelSelectorRequirement> matchExps = peer.getPodSelector().getMatchExpressions(); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 537 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 538 | if (podLabels == null && matchExps.size() == 0 && podIp != null) { |
| 539 | white.compute(shiftIpDomain(podIp, SHIFTED_IP_PREFIX) + |
| 540 | "/" + HOST_PREFIX, (m, n) -> { |
| 541 | if (n != null) { |
| 542 | n.put(DIRECTION_EGRESS, e.getPorts()); |
| 543 | return n; |
| 544 | } else { |
| 545 | return direction; |
| 546 | } |
| 547 | }); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 548 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 549 | white.compute(podIp + "/" + |
| 550 | HOST_PREFIX, (m, n) -> { |
| 551 | if (n != null) { |
| 552 | n.put(DIRECTION_EGRESS, e.getPorts()); |
| 553 | return n; |
| 554 | } else { |
| 555 | return direction; |
| 556 | } |
| 557 | }); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 558 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 559 | selectedPolicy.set(policy); |
| 560 | } else { |
| 561 | pod.getMetadata().getLabels().forEach((k, v) -> { |
| 562 | if (podLabels != null && podLabels.get(k) != null && |
| 563 | podLabels.get(k).equals(v) && podIp != null) { |
| 564 | white.compute(shiftIpDomain(podIp, SHIFTED_IP_PREFIX) + |
| 565 | "/" + HOST_PREFIX, (m, n) -> { |
| 566 | if (n != null) { |
| 567 | n.put(DIRECTION_EGRESS, e.getPorts()); |
| 568 | return n; |
| 569 | } else { |
| 570 | return direction; |
| 571 | } |
| 572 | }); |
| 573 | |
| 574 | white.compute(podIp + "/" + |
| 575 | HOST_PREFIX, (m, n) -> { |
| 576 | if (n != null) { |
| 577 | n.put(DIRECTION_EGRESS, e.getPorts()); |
| 578 | return n; |
| 579 | } else { |
| 580 | return direction; |
| 581 | } |
| 582 | }); |
| 583 | |
| 584 | selectedPolicy.set(policy); |
| 585 | } |
| 586 | }); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 587 | } |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 588 | } |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 589 | }); |
| 590 | }); |
| 591 | }); |
| 592 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 593 | int nsHash = selectedPolicy.get() != null ? namespaceHashByNamespace(k8sNamespaceService, |
| 594 | selectedPolicy.get().getMetadata().getNamespace()) : DEFAULT_NAMESPACE_HASH; |
| 595 | |
| 596 | setAllowRules(nsHash, white, install); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 597 | setBlackToRouteRules(true); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 598 | } |
| 599 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 600 | private Set<Namespace> namespacesByLabels(Map<String, String> labels) { |
| 601 | Set<Namespace> nsSet = Sets.newConcurrentHashSet(); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 602 | k8sNamespaceService.namespaces().forEach(ns -> { |
| 603 | if (ns != null && ns.getMetadata() != null && |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 604 | ns.getMetadata().getLabels() != null && labels != null) { |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 605 | ns.getMetadata().getLabels().forEach((k, v) -> { |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 606 | if (labels.get(k) != null && labels.get(k).equals(v)) { |
| 607 | nsSet.add(ns); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 608 | } |
| 609 | }); |
| 610 | } |
| 611 | }); |
| 612 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 613 | return nsSet; |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 614 | } |
| 615 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 616 | private Set<Namespace> namespacesByPolicyPeer(NetworkPolicyPeer peer) { |
| 617 | if (peer.getNamespaceSelector() != null) { |
| 618 | Map<String, String> labels = peer.getNamespaceSelector().getMatchLabels(); |
| 619 | if (labels == null || labels.size() == 0) { |
| 620 | // if none of match labels are specified, it means the |
| 621 | // target PODs are from any namespaces |
| 622 | return k8sNamespaceService.namespaces(); |
| 623 | } else { |
| 624 | return namespacesByLabels(labels); |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | return Sets.newConcurrentHashSet(); |
| 629 | } |
| 630 | |
| 631 | private void setAllowNamespaceRules(int tunnelId, Set<Namespace> nsSet, |
| 632 | String direction, boolean install) { |
| 633 | |
| 634 | nsSet.forEach(ns -> { |
| 635 | setAllowNamespaceRulesBase(tunnelId, ns.hashCode(), direction, install); |
| 636 | }); |
| 637 | |
| 638 | } |
| 639 | |
| 640 | private void setAllowAllRule(int nsHash, String direction, boolean install) { |
| 641 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 642 | .matchTunnelId(nsHash); |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 643 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 644 | .setTunnelId(DEFAULT_SEGMENT_ID) |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 645 | .transition(ROUTING_TABLE); |
| 646 | |
| 647 | int table = 0; |
| 648 | |
| 649 | if (DIRECTION_INGRESS.equalsIgnoreCase(direction)) { |
| 650 | table = ACL_INGRESS_WHITE_TABLE; |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 651 | } |
| 652 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 653 | setPolicyRulesBase(sBuilder, tBuilder, table, install); |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 654 | } |
| 655 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 656 | private void setAllowRules(int namespaceHash, |
| 657 | Map<String, Map<String, List<NetworkPolicyPort>>> white, |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 658 | boolean install) { |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 659 | white.forEach((k, v) -> { |
| 660 | v.forEach((pk, pv) -> { |
| 661 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 662 | .matchTunnelId(namespaceHash) |
| 663 | .matchEthType(TYPE_IPV4); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 664 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 665 | tBuilder.setTunnelId(DEFAULT_SEGMENT_ID); |
| 666 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 667 | if (pk.equalsIgnoreCase(DIRECTION_INGRESS)) { |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 668 | sBuilder.matchIPSrc(IpPrefix.valueOf(k)); |
| 669 | tBuilder.writeMetadata(k.hashCode(), DEFAULT_METADATA_MASK) |
| 670 | .transition(ACL_INGRESS_BLACK_TABLE); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 671 | |
| 672 | if (pv.size() == 0) { |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 673 | setPolicyRulesBase(sBuilder, tBuilder, ACL_INGRESS_WHITE_TABLE, install); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 674 | } else { |
| 675 | pv.forEach(p -> { |
| 676 | if (p.getProtocol().equalsIgnoreCase(PROTOCOL_TCP)) { |
| 677 | sBuilder.matchIPProtocol(IPv4.PROTOCOL_TCP); |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 678 | |
| 679 | if (p.getPort() != null && |
| 680 | p.getPort().getIntVal() != null) { |
| 681 | sBuilder.matchTcpDst(TpPort.tpPort(p.getPort().getIntVal())); |
| 682 | } |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 683 | } |
| 684 | if (p.getProtocol().equalsIgnoreCase(PROTOCOL_UDP)) { |
| 685 | sBuilder.matchIPProtocol(IPv4.PROTOCOL_UDP); |
Jian Li | b7dfb5b | 2019-07-15 17:37:12 +0900 | [diff] [blame] | 686 | |
| 687 | if (p.getPort() != null && |
| 688 | p.getPort().getIntVal() != null) { |
| 689 | sBuilder.matchUdpDst(TpPort.tpPort(p.getPort().getIntVal())); |
| 690 | } |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 691 | } |
| 692 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 693 | setPolicyRulesBase(sBuilder, tBuilder, ACL_INGRESS_WHITE_TABLE, install); |
| 694 | }); |
| 695 | } |
| 696 | } else if (pk.equalsIgnoreCase(DIRECTION_EGRESS)) { |
| 697 | sBuilder.matchIPDst(IpPrefix.valueOf(k)); |
| 698 | tBuilder.writeMetadata(k.hashCode(), DEFAULT_METADATA_MASK) |
| 699 | .transition(ACL_EGRESS_BLACK_TABLE); |
| 700 | |
| 701 | if (pv.size() == 0) { |
| 702 | setPolicyRulesBase(sBuilder, tBuilder, ACL_EGRESS_WHITE_TABLE, install); |
| 703 | } else { |
| 704 | pv.forEach(p -> { |
| 705 | if (p.getProtocol().equalsIgnoreCase(PROTOCOL_TCP)) { |
| 706 | sBuilder.matchIPProtocol(IPv4.PROTOCOL_TCP); |
| 707 | |
| 708 | if (p.getPort() != null && |
| 709 | p.getPort().getIntVal() != null) { |
| 710 | sBuilder.matchTcpSrc(TpPort.tpPort(p.getPort().getIntVal())); |
| 711 | } |
| 712 | } |
| 713 | if (p.getProtocol().equalsIgnoreCase(PROTOCOL_UDP)) { |
| 714 | sBuilder.matchIPProtocol(IPv4.PROTOCOL_UDP); |
| 715 | |
| 716 | if (p.getPort() != null && |
| 717 | p.getPort().getIntVal() != null) { |
| 718 | sBuilder.matchUdpSrc(TpPort.tpPort(p.getPort().getIntVal())); |
| 719 | } |
| 720 | } |
| 721 | setPolicyRulesBase(sBuilder, tBuilder, ACL_EGRESS_WHITE_TABLE, install); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 722 | }); |
| 723 | } |
| 724 | |
| 725 | } else { |
| 726 | log.error("In correct direction has been specified at network policy."); |
| 727 | } |
| 728 | }); |
| 729 | }); |
| 730 | } |
| 731 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 732 | private void setPolicyRulesBase(TrafficSelector.Builder sBuilder, |
| 733 | TrafficTreatment.Builder tBuilder, |
| 734 | int table, |
| 735 | boolean install) { |
| 736 | k8sNodeService.completeNodes().forEach(n -> { |
| 737 | k8sFlowRuleService.setRule( |
| 738 | appId, |
| 739 | n.intgBridge(), |
| 740 | sBuilder.build(), |
| 741 | tBuilder.build(), |
| 742 | PRIORITY_CIDR_RULE, |
| 743 | table, |
| 744 | install |
| 745 | ); |
| 746 | }); |
| 747 | } |
| 748 | |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 749 | private void setBlackRules(String whiteIpCidr, String direction, |
| 750 | List<String> except, boolean install) { |
| 751 | k8sNodeService.completeNodes().forEach(n -> { |
| 752 | except.forEach(blkIp -> { |
| 753 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 754 | .matchEthType(TYPE_IPV4) |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 755 | .matchMetadata(whiteIpCidr.hashCode()); |
| 756 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| 757 | .drop(); |
| 758 | int table = 0; |
| 759 | if (direction.equalsIgnoreCase(DIRECTION_INGRESS)) { |
| 760 | sBuilder.matchIPSrc(IpPrefix.valueOf(blkIp)); |
| 761 | table = ACL_INGRESS_BLACK_TABLE; |
| 762 | } |
| 763 | if (direction.equalsIgnoreCase(DIRECTION_EGRESS)) { |
| 764 | sBuilder.matchIPDst(IpPrefix.valueOf(blkIp)); |
| 765 | table = ACL_EGRESS_BLACK_TABLE; |
| 766 | } |
| 767 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 768 | setPolicyRulesBase(sBuilder, tBuilder, table, install); |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 769 | }); |
| 770 | }); |
| 771 | } |
| 772 | |
| 773 | private void setBlackToRouteRules(boolean install) { |
| 774 | |
| 775 | k8sNodeService.completeNodes().forEach(n -> { |
| 776 | ImmutableSet.of(ACL_INGRESS_BLACK_TABLE, ACL_EGRESS_BLACK_TABLE).forEach(t -> { |
| 777 | k8sFlowRuleService.setRule( |
| 778 | appId, |
| 779 | n.intgBridge(), |
| 780 | DefaultTrafficSelector.builder().build(), |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 781 | DefaultTrafficTreatment.builder() |
| 782 | .transition(ROUTING_TABLE).build(), |
Jian Li | 0f45961 | 2019-07-11 10:38:02 +0900 | [diff] [blame] | 783 | 0, |
| 784 | t, |
| 785 | install |
| 786 | ); |
| 787 | }); |
| 788 | }); |
| 789 | } |
| 790 | |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 791 | private void setNamespaceRulesByPod(Pod pod, boolean install) { |
| 792 | String podIp = pod.getStatus().getPodIP(); |
| 793 | |
| 794 | if (podIp == null) { |
| 795 | return; |
| 796 | } |
| 797 | |
| 798 | Integer nsHash = namespaceHashByPodIp(k8sPodService, k8sNamespaceService, podIp); |
| 799 | |
| 800 | if (nsHash == null) { |
| 801 | return; |
| 802 | } |
| 803 | |
| 804 | setNamespaceRulesBase(podIp, nsHash, install); |
| 805 | } |
| 806 | |
| 807 | private void setNamespaceRulesByService(Service service, boolean install) { |
| 808 | String clusterIp = service.getSpec().getClusterIP(); |
| 809 | |
| 810 | if (clusterIp == null) { |
| 811 | return; |
| 812 | } |
| 813 | |
| 814 | setNamespaceRulesBase(clusterIp, namespaceHashByServiceIp(k8sServiceService, |
| 815 | k8sNamespaceService, clusterIp), install); |
| 816 | } |
| 817 | |
| 818 | private void setNamespaceRulesBase(String ip, Integer nsHash, boolean install) { |
| 819 | |
| 820 | k8sNodeService.completeNodes().forEach(n -> { |
| 821 | TrafficSelector.Builder origBuilder = DefaultTrafficSelector.builder() |
| 822 | .matchEthType(TYPE_IPV4) |
| 823 | .matchIPSrc(IpPrefix.valueOf(IpAddress.valueOf(ip), HOST_PREFIX)); |
| 824 | TrafficSelector.Builder convBuilder = DefaultTrafficSelector.builder() |
| 825 | .matchEthType(TYPE_IPV4) |
| 826 | .matchIPSrc(IpPrefix.valueOf(IpAddress.valueOf( |
| 827 | shiftIpDomain(ip, SHIFTED_IP_PREFIX)), HOST_PREFIX)); |
| 828 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| 829 | .writeMetadata(nsHash, DEFAULT_METADATA_MASK) |
| 830 | .transition(GROUPING_TABLE); |
| 831 | |
| 832 | k8sFlowRuleService.setRule( |
| 833 | appId, |
| 834 | n.intgBridge(), |
| 835 | origBuilder.build(), |
| 836 | tBuilder.build(), |
| 837 | PRIORITY_NAMESPACE_RULE, |
| 838 | NAMESPACE_TABLE, |
| 839 | install |
| 840 | ); |
| 841 | |
| 842 | k8sFlowRuleService.setRule( |
| 843 | appId, |
| 844 | n.intgBridge(), |
| 845 | convBuilder.build(), |
| 846 | tBuilder.build(), |
| 847 | PRIORITY_NAMESPACE_RULE, |
| 848 | NAMESPACE_TABLE, |
| 849 | install |
| 850 | ); |
| 851 | }); |
| 852 | } |
| 853 | |
| 854 | private class InternalServiceListener implements K8sServiceListener { |
| 855 | |
| 856 | private boolean isRelevantHelper() { |
| 857 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 858 | } |
| 859 | |
| 860 | @Override |
| 861 | public void event(K8sServiceEvent event) { |
| 862 | Service service = event.subject(); |
| 863 | switch (event.type()) { |
| 864 | case K8S_SERVICE_CREATED: |
| 865 | case K8S_SERVICE_UPDATED: |
| 866 | eventExecutor.execute(() -> processServiceCreation(service)); |
| 867 | break; |
| 868 | case K8S_SERVICE_REMOVED: |
| 869 | eventExecutor.execute(() -> processServiceRemoval(service)); |
| 870 | break; |
| 871 | default: |
| 872 | break; |
| 873 | } |
| 874 | } |
| 875 | |
| 876 | private void processServiceCreation(Service service) { |
| 877 | if (!isRelevantHelper()) { |
| 878 | return; |
| 879 | } |
| 880 | |
| 881 | setNamespaceRulesByService(service, true); |
| 882 | } |
| 883 | |
| 884 | private void processServiceRemoval(Service service) { |
| 885 | if (!isRelevantHelper()) { |
| 886 | return; |
| 887 | } |
| 888 | |
| 889 | setNamespaceRulesByService(service, false); |
| 890 | } |
| 891 | } |
| 892 | |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 893 | private class InternalPodListener implements K8sPodListener { |
| 894 | |
| 895 | private boolean isRelevantHelper() { |
| 896 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 897 | } |
| 898 | |
| 899 | @Override |
| 900 | public void event(K8sPodEvent event) { |
| 901 | Pod pod = event.subject(); |
| 902 | switch (event.type()) { |
| 903 | case K8S_POD_CREATED: |
| 904 | case K8S_POD_UPDATED: |
| 905 | eventExecutor.execute(() -> processPodCreation(pod)); |
| 906 | break; |
| 907 | case K8S_POD_REMOVED: |
| 908 | eventExecutor.execute(() -> processPodRemoval(pod)); |
| 909 | break; |
| 910 | default: |
| 911 | break; |
| 912 | } |
| 913 | } |
| 914 | |
| 915 | private void processPodCreation(Pod pod) { |
| 916 | if (!isRelevantHelper()) { |
| 917 | return; |
| 918 | } |
| 919 | |
| 920 | setBlockRulesByPod(pod, true); |
| 921 | setAllowRulesByPod(pod, true); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 922 | setNamespaceRulesByPod(pod, true); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 923 | } |
| 924 | |
| 925 | private void processPodRemoval(Pod pod) { |
| 926 | if (!isRelevantHelper()) { |
| 927 | return; |
| 928 | } |
| 929 | |
| 930 | setBlockRulesByPod(pod, false); |
| 931 | setAllowRulesByPod(pod, false); |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 932 | setNamespaceRulesByPod(pod, false); |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 933 | } |
| 934 | } |
| 935 | |
| 936 | private class InternalNetworkPolicyListener implements K8sNetworkPolicyListener { |
| 937 | |
| 938 | private boolean isRelevantHelper() { |
| 939 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 940 | } |
| 941 | |
| 942 | @Override |
| 943 | public void event(K8sNetworkPolicyEvent event) { |
| 944 | NetworkPolicy policy = event.subject(); |
| 945 | switch (event.type()) { |
| 946 | case K8S_NETWORK_POLICY_CREATED: |
| 947 | case K8S_NETWORK_POLICY_UPDATED: |
| 948 | eventExecutor.execute(() -> processNetworkPolicyCreation(policy)); |
| 949 | break; |
| 950 | case K8S_NETWORK_POLICY_REMOVED: |
| 951 | eventExecutor.execute(() -> processNetworkPolicyRemoval(policy)); |
| 952 | break; |
| 953 | default: |
| 954 | break; |
| 955 | } |
| 956 | } |
| 957 | |
| 958 | private void processNetworkPolicyCreation(NetworkPolicy policy) { |
| 959 | if (!isRelevantHelper()) { |
| 960 | return; |
| 961 | } |
| 962 | |
| 963 | setBlockRulesByPolicy(policy, true); |
| 964 | setAllowRulesByPolicy(policy, true); |
| 965 | } |
| 966 | |
| 967 | private void processNetworkPolicyRemoval(NetworkPolicy policy) { |
| 968 | if (!isRelevantHelper()) { |
| 969 | return; |
| 970 | } |
| 971 | |
| 972 | setBlockRulesByPolicy(policy, false); |
| 973 | setAllowRulesByPolicy(policy, false); |
| 974 | } |
| 975 | } |
Jian Li | e1a5b8f | 2019-07-23 17:13:19 +0900 | [diff] [blame] | 976 | |
| 977 | private class InternalNamespaceListener implements K8sNamespaceListener { |
| 978 | |
| 979 | private boolean isRelevantHelper() { |
| 980 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 981 | } |
| 982 | |
| 983 | @Override |
| 984 | public void event(K8sNamespaceEvent event) { |
| 985 | Namespace ns = event.subject(); |
| 986 | switch (event.type()) { |
| 987 | case K8S_NAMESPACE_CREATED: |
| 988 | case K8S_NAMESPACE_UPDATED: |
| 989 | eventExecutor.execute(() -> processNamespaceCreation(ns)); |
| 990 | break; |
| 991 | case K8S_NAMESPACE_REMOVED: |
| 992 | eventExecutor.execute(() -> processNamespaceRemoval(ns)); |
| 993 | break; |
| 994 | default: |
| 995 | break; |
| 996 | } |
| 997 | } |
| 998 | |
| 999 | private void processNamespaceCreation(Namespace namespace) { |
| 1000 | if (!isRelevantHelper()) { |
| 1001 | return; |
| 1002 | } |
| 1003 | |
| 1004 | setDefaultAllowNamespaceRules(namespace, true); |
| 1005 | setDefaultAllowServiceRules(true); |
| 1006 | } |
| 1007 | |
| 1008 | private void processNamespaceRemoval(Namespace namespace) { |
| 1009 | if (!isRelevantHelper()) { |
| 1010 | return; |
| 1011 | } |
| 1012 | |
| 1013 | // do nothing for now |
| 1014 | } |
| 1015 | } |
Jian Li | 73d3b6a | 2019-07-08 18:07:53 +0900 | [diff] [blame] | 1016 | } |