| /* |
| * Copyright 2020-present Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.k8snode.impl; |
| |
| import org.apache.commons.net.util.SubnetUtils; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.IpPrefix; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.k8snode.api.ExternalNetworkService; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.ConsistentMap; |
| import org.onosproject.store.service.Serializer; |
| import org.onosproject.store.service.StorageService; |
| import org.osgi.service.component.annotations.Activate; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Deactivate; |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.slf4j.Logger; |
| |
| import java.util.Arrays; |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| import java.util.stream.Collectors; |
| |
| import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.k8snode.api.K8sNodeService.APP_ID; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * External network service implementation. |
| */ |
| @Component( |
| immediate = true, |
| service = { ExternalNetworkService.class } |
| ) |
| public class ExternalNetworkManager implements ExternalNetworkService { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private static final KryoNamespace |
| SERIALIZER_EXTERNAL_NETWORK = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .build(); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected StorageService storageService; |
| |
| private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| |
| private ConsistentMap<String, Set<String>> networkIpPool; |
| |
| @Activate |
| protected void activate() { |
| ApplicationId appId = coreService.registerApplication(APP_ID); |
| networkIpPool = storageService.<String, Set<String>>consistentMapBuilder() |
| .withSerializer(Serializer.using(SERIALIZER_EXTERNAL_NETWORK)) |
| .withName("external-network-ip-pool") |
| .withApplicationId(appId) |
| .build(); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| eventExecutor.shutdown(); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void registerNetwork(IpPrefix cidr) { |
| if (!networkIpPool.containsKey(cidr.toString())) { |
| SubnetUtils utils = new SubnetUtils(cidr.toString()); |
| utils.setInclusiveHostCount(false); |
| SubnetUtils.SubnetInfo info = utils.getInfo(); |
| |
| Set<String> all = Arrays.stream(info.getAllAddresses()) |
| .collect(Collectors.toSet()); |
| all.remove(info.getNetworkAddress()); |
| all.remove(info.getHighAddress()); |
| all.remove(info.getLowAddress()); |
| all.remove(info.getBroadcastAddress()); |
| |
| networkIpPool.put(cidr.toString(), all); |
| } |
| } |
| |
| @Override |
| public void unregisterNetwork(IpPrefix cidr) { |
| if (!networkIpPool.containsKey(cidr.toString())) { |
| log.warn("The given network {} is not found!", cidr.toString()); |
| } else { |
| networkIpPool.remove(cidr.toString()); |
| } |
| } |
| |
| @Override |
| public IpAddress getGatewayIp(IpPrefix cidr) { |
| SubnetUtils utils = new SubnetUtils(cidr.toString()); |
| utils.setInclusiveHostCount(false); |
| SubnetUtils.SubnetInfo info = utils.getInfo(); |
| |
| return IpAddress.valueOf(info.getLowAddress()); |
| } |
| |
| @Override |
| public IpAddress allocateIp(IpPrefix cidr) { |
| if (!networkIpPool.containsKey(cidr.toString())) { |
| log.error("The given network {} is not found", cidr.toString()); |
| return null; |
| } else { |
| Set<String> pool = networkIpPool.get(cidr.toString()).value(); |
| String ipStr = pool.stream().findFirst().orElse(null); |
| if (ipStr == null) { |
| log.error("No IPs are found in the given network {}", cidr.toString()); |
| return null; |
| } |
| |
| pool.remove(ipStr); |
| networkIpPool.put(cidr.toString(), pool); |
| return IpAddress.valueOf(ipStr); |
| } |
| } |
| |
| @Override |
| public void releaseIp(IpPrefix cidr, IpAddress ip) { |
| if (!networkIpPool.containsKey(cidr.toString())) { |
| log.error("The given network {} is not found", cidr.toString()); |
| } else { |
| Set<String> pool = networkIpPool.get(cidr.toString()).value(); |
| pool.add(ip.toString()); |
| networkIpPool.put(cidr.toString(), pool); |
| } |
| } |
| |
| @Override |
| public Set<String> getAllIps(IpPrefix cidr) { |
| return networkIpPool.get(cidr.toString()).value(); |
| } |
| } |