diff options
Diffstat (limited to 'framework/src/onos/core/net/src/main/java/org/onosproject/net/host/impl/HostManager.java')
| -rw-r--r-- | framework/src/onos/core/net/src/main/java/org/onosproject/net/host/impl/HostManager.java | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/framework/src/onos/core/net/src/main/java/org/onosproject/net/host/impl/HostManager.java b/framework/src/onos/core/net/src/main/java/org/onosproject/net/host/impl/HostManager.java new file mode 100644 index 00000000..99263381 --- /dev/null +++ b/framework/src/onos/core/net/src/main/java/org/onosproject/net/host/impl/HostManager.java @@ -0,0 +1,300 @@ +/* + * Copyright 2014 Open Networking Laboratory + * + * 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.net.host.impl; + +import org.apache.felix.scr.annotations.Activate; +import org.apache.felix.scr.annotations.Component; +import org.apache.felix.scr.annotations.Deactivate; +import org.apache.felix.scr.annotations.Reference; +import org.apache.felix.scr.annotations.ReferenceCardinality; +import org.apache.felix.scr.annotations.Service; +import org.onlab.packet.IpAddress; +import org.onlab.packet.MacAddress; +import org.onlab.packet.VlanId; +import org.onosproject.incubator.net.intf.InterfaceService; +import org.onosproject.net.provider.AbstractListenerProviderRegistry; +import org.onosproject.net.config.NetworkConfigEvent; +import org.onosproject.net.config.NetworkConfigListener; +import org.onosproject.net.config.NetworkConfigService; +import org.onosproject.net.config.basics.BasicHostConfig; +import org.onosproject.net.ConnectPoint; +import org.onosproject.net.DeviceId; +import org.onosproject.net.Host; +import org.onosproject.net.HostId; +import org.onosproject.net.device.DeviceService; +import org.onosproject.net.host.HostAdminService; +import org.onosproject.net.host.HostDescription; +import org.onosproject.net.host.HostEvent; +import org.onosproject.net.host.HostListener; +import org.onosproject.net.host.HostProvider; +import org.onosproject.net.host.HostProviderRegistry; +import org.onosproject.net.host.HostProviderService; +import org.onosproject.net.host.HostService; +import org.onosproject.net.host.HostStore; +import org.onosproject.net.host.HostStoreDelegate; +import org.onosproject.net.host.PortAddresses; +import org.onosproject.net.packet.PacketService; +import org.onosproject.net.provider.AbstractProviderService; +import org.slf4j.Logger; + +import java.util.Set; + +import static com.google.common.base.Preconditions.checkNotNull; +import static com.google.common.base.Preconditions.checkState; +import static org.onosproject.security.AppGuard.checkPermission; +import static org.slf4j.LoggerFactory.getLogger; +import static org.onosproject.security.AppPermission.Type.*; + +/** + * Provides basic implementation of the host SB & NB APIs. + */ +@Component(immediate = true) +@Service +public class HostManager + extends AbstractListenerProviderRegistry<HostEvent, HostListener, HostProvider, HostProviderService> + implements HostService, HostAdminService, HostProviderRegistry { + + private final Logger log = getLogger(getClass()); + + public static final String HOST_ID_NULL = "Host ID cannot be null"; + + private final NetworkConfigListener networkConfigListener = new InternalNetworkConfigListener(); + + private HostStoreDelegate delegate = new InternalStoreDelegate(); + + @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) + protected HostStore store; + + @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) + protected DeviceService deviceService; + + @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) + protected PacketService packetService; + + @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) + protected NetworkConfigService networkConfigService; + + @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) + protected InterfaceService interfaceService; + + private HostMonitor monitor; + + @Activate + public void activate() { + store.setDelegate(delegate); + eventDispatcher.addSink(HostEvent.class, listenerRegistry); + networkConfigService.addListener(networkConfigListener); + monitor = new HostMonitor(packetService, this, interfaceService); + monitor.start(); + log.info("Started"); + } + + @Deactivate + public void deactivate() { + store.unsetDelegate(delegate); + eventDispatcher.removeSink(HostEvent.class); + networkConfigService.removeListener(networkConfigListener); + log.info("Stopped"); + } + + @Override + protected HostProviderService createProviderService(HostProvider provider) { + monitor.registerHostProvider(provider); + return new InternalHostProviderService(provider); + } + + @Override + public int getHostCount() { + checkPermission(HOST_READ); + return store.getHostCount(); + } + + @Override + public Iterable<Host> getHosts() { + checkPermission(HOST_READ); + return store.getHosts(); + } + + @Override + public Host getHost(HostId hostId) { + checkPermission(HOST_READ); + checkNotNull(hostId, HOST_ID_NULL); + return store.getHost(hostId); + } + + @Override + public Set<Host> getHostsByVlan(VlanId vlanId) { + checkPermission(HOST_READ); + return store.getHosts(vlanId); + } + + @Override + public Set<Host> getHostsByMac(MacAddress mac) { + checkPermission(HOST_READ); + checkNotNull(mac, "MAC address cannot be null"); + return store.getHosts(mac); + } + + @Override + public Set<Host> getHostsByIp(IpAddress ip) { + checkPermission(HOST_READ); + checkNotNull(ip, "IP address cannot be null"); + return store.getHosts(ip); + } + + @Override + public Set<Host> getConnectedHosts(ConnectPoint connectPoint) { + checkPermission(HOST_READ); + checkNotNull(connectPoint, "Connection point cannot be null"); + return store.getConnectedHosts(connectPoint); + } + + @Override + public Set<Host> getConnectedHosts(DeviceId deviceId) { + checkPermission(HOST_READ); + checkNotNull(deviceId, "Device ID cannot be null"); + return store.getConnectedHosts(deviceId); + } + + @Override + public void startMonitoringIp(IpAddress ip) { + checkPermission(HOST_EVENT); + monitor.addMonitoringFor(ip); + } + + @Override + public void stopMonitoringIp(IpAddress ip) { + checkPermission(HOST_EVENT); + monitor.stopMonitoring(ip); + } + + @Override + public void requestMac(IpAddress ip) { + // FIXME!!!! Auto-generated method stub + } + + @Override + public void removeHost(HostId hostId) { + checkNotNull(hostId, HOST_ID_NULL); + HostEvent event = store.removeHost(hostId); + if (event != null) { + post(event); + } + } + + @Override + public void bindAddressesToPort(PortAddresses addresses) { + store.updateAddressBindings(addresses); + } + + @Override + public void unbindAddressesFromPort(PortAddresses portAddresses) { + store.removeAddressBindings(portAddresses); + } + + @Override + public void clearAddresses(ConnectPoint connectPoint) { + store.clearAddressBindings(connectPoint); + } + + @Override + public Set<PortAddresses> getAddressBindings() { + checkPermission(HOST_READ); + return store.getAddressBindings(); + } + + @Override + public Set<PortAddresses> getAddressBindingsForPort(ConnectPoint connectPoint) { + checkPermission(HOST_READ); + return store.getAddressBindingsForPort(connectPoint); + } + + // Personalized host provider service issued to the supplied provider. + private class InternalHostProviderService + extends AbstractProviderService<HostProvider> + implements HostProviderService { + InternalHostProviderService(HostProvider provider) { + super(provider); + } + + @Override + public void hostDetected(HostId hostId, HostDescription hostDescription) { + checkNotNull(hostId, HOST_ID_NULL); + checkValidity(); + hostDescription = validateHost(hostDescription, hostId); + HostEvent event = store.createOrUpdateHost(provider().id(), hostId, + hostDescription); + if (event != null) { + post(event); + } + } + + // returns a HostDescription made from the union of the BasicHostConfig + // annotations if it exists + private HostDescription validateHost(HostDescription hostDescription, HostId hostId) { + BasicHostConfig cfg = networkConfigService.getConfig(hostId, BasicHostConfig.class); + checkState(cfg == null || cfg.isAllowed(), "Host {} is not allowed", hostId); + + return BasicHostOperator.combine(cfg, hostDescription); + } + + @Override + public void hostVanished(HostId hostId) { + checkNotNull(hostId, HOST_ID_NULL); + checkValidity(); + HostEvent event = store.removeHost(hostId); + if (event != null) { + post(event); + } + } + } + + // Store delegate to re-post events emitted from the store. + private class InternalStoreDelegate implements HostStoreDelegate { + @Override + public void notify(HostEvent event) { + post(event); + } + } + + // listens for NetworkConfigEvents of type BasicHostConfig and removes + // links that the config does not allow + private class InternalNetworkConfigListener implements NetworkConfigListener { + @Override + public void event(NetworkConfigEvent event) { + if ((event.type() == NetworkConfigEvent.Type.CONFIG_ADDED || + event.type() == NetworkConfigEvent.Type.CONFIG_UPDATED) && + event.configClass().equals(BasicHostConfig.class)) { + log.info("Detected Host network config event {}", event.type()); + kickOutBadHost(((HostId) event.subject())); + } + } + } + + // checks if the specified host is allowed by the BasicHostConfig + // and if not, removes it + private void kickOutBadHost(HostId hostId) { + BasicHostConfig cfg = networkConfigService.getConfig(hostId, BasicHostConfig.class); + if (cfg != null && !cfg.isAllowed()) { + Host badHost = getHost(hostId); + if (badHost != null) { + removeHost(hostId); + } else { + log.info("Failed removal: Host {} does not exist", hostId); + } + } + } +} |