| /* |
| * Copyright 2015-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.bgp.controller.impl; |
| |
| import static org.onlab.util.Tools.groupedThreads; |
| import io.netty.util.internal.PlatformDependent; |
| import java.lang.management.ManagementFactory; |
| import java.lang.management.RuntimeMXBean; |
| import java.net.InetSocketAddress; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.Executors; |
| |
| import org.jboss.netty.bootstrap.ClientBootstrap; |
| import org.jboss.netty.bootstrap.ServerBootstrap; |
| import org.jboss.netty.channel.Channel; |
| import org.jboss.netty.channel.ChannelPipelineFactory; |
| import org.jboss.netty.channel.group.ChannelGroup; |
| import org.jboss.netty.channel.group.DefaultChannelGroup; |
| import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory; |
| import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory; |
| import org.onosproject.bgp.controller.BgpController; |
| import org.onosproject.bgpio.protocol.BgpFactories; |
| import org.onosproject.bgpio.protocol.BgpFactory; |
| import org.onosproject.bgpio.protocol.BgpVersion; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * The main controller class. Handles all setup and network listeners - Distributed ownership control of bgp peer |
| * through IControllerRegistryService |
| */ |
| public class Controller { |
| |
| private static final Logger log = LoggerFactory.getLogger(Controller.class); |
| |
| private static final BgpFactory FACTORY4 = BgpFactories.getFactory(BgpVersion.BGP_4); |
| |
| private ChannelGroup cg; |
| private Channel serverChannel; |
| |
| // Configuration options |
| protected static final short BGP_PORT_NUM = 179; |
| private static final short BGP_PRIVILEGED_PORT = 1790; // server port used for non root users in linux |
| private static final short PORT_NUM_ZERO = 0; |
| private static boolean isPortNumSet = false; |
| private static short portNumber = BGP_PORT_NUM; |
| private final int workerThreads = 16; |
| private final int peerWorkerThreads = 16; |
| |
| // Start time of the controller |
| private long systemStartTime; |
| |
| private NioServerSocketChannelFactory serverExecFactory; |
| private NioClientSocketChannelFactory peerExecFactory; |
| private static ClientBootstrap peerBootstrap; |
| private BgpController bgpController; |
| |
| // Perf. related configuration |
| private static final int SEND_BUFFER_SIZE = 4 * 1024 * 1024; |
| |
| /** |
| * Constructor to initialize the values. |
| * |
| * @param bgpController bgp controller instance |
| */ |
| public Controller(BgpController bgpController) { |
| this.bgpController = bgpController; |
| } |
| |
| /** |
| * Returns factory version for processing BGP messages. |
| * |
| * @return instance of factory version |
| */ |
| static BgpFactory getBgpMessageFactory4() { |
| return FACTORY4; |
| } |
| |
| /** |
| * To get system start time. |
| * |
| * @return system start time in milliseconds |
| */ |
| public long getSystemStartTime() { |
| return (this.systemStartTime); |
| } |
| |
| /** |
| * Tell controller that we're ready to accept bgp peer connections. |
| */ |
| public void run() { |
| |
| try { |
| |
| peerBootstrap = createPeerBootStrap(); |
| |
| peerBootstrap.setOption("reuseAddr", true); |
| peerBootstrap.setOption("child.keepAlive", true); |
| peerBootstrap.setOption("child.tcpNoDelay", true); |
| peerBootstrap.setOption("child.sendBufferSize", Controller.SEND_BUFFER_SIZE); |
| |
| final ServerBootstrap bootstrap = createServerBootStrap(); |
| |
| bootstrap.setOption("reuseAddr", true); |
| bootstrap.setOption("child.keepAlive", true); |
| bootstrap.setOption("child.tcpNoDelay", true); |
| bootstrap.setOption("child.sendBufferSize", Controller.SEND_BUFFER_SIZE); |
| |
| ChannelPipelineFactory pfact = new BgpPipelineFactory(bgpController, true); |
| |
| bootstrap.setPipelineFactory(pfact); |
| InetSocketAddress sa = new InetSocketAddress(getBgpPortNum()); |
| cg = new DefaultChannelGroup(); |
| serverChannel = bootstrap.bind(sa); |
| cg.add(serverChannel); |
| log.info("Listening for Peer connection on {}", sa); |
| } catch (Exception e) { |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| /** |
| * Creates server boot strap. |
| * |
| * @return ServerBootStrap |
| */ |
| private ServerBootstrap createServerBootStrap() { |
| |
| if (workerThreads == 0) { |
| serverExecFactory = new NioServerSocketChannelFactory( |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "boss-%d")), |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "worker-%d"))); |
| return new ServerBootstrap(serverExecFactory); |
| } else { |
| serverExecFactory = new NioServerSocketChannelFactory( |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "boss-%d")), |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "worker-%d")), |
| workerThreads); |
| return new ServerBootstrap(serverExecFactory); |
| } |
| } |
| |
| /** |
| * Creates peer boot strap. |
| * |
| * @return ClientBootstrap |
| */ |
| private ClientBootstrap createPeerBootStrap() { |
| |
| if (peerWorkerThreads == 0) { |
| peerExecFactory = new NioClientSocketChannelFactory( |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "boss-%d")), |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "worker-%d"))); |
| return new ClientBootstrap(peerExecFactory); |
| } else { |
| peerExecFactory = new NioClientSocketChannelFactory( |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "boss-%d")), |
| Executors.newCachedThreadPool(groupedThreads("onos/bgp", "worker-%d")), |
| peerWorkerThreads); |
| return new ClientBootstrap(peerExecFactory); |
| } |
| } |
| |
| /** |
| * Gets peer bootstrap. |
| * |
| * @return peer bootstrap |
| */ |
| public static ClientBootstrap peerBootstrap() { |
| return peerBootstrap; |
| } |
| |
| /** |
| * Initialize internal data structures. |
| */ |
| public void init() { |
| // These data structures are initialized here because other |
| // module's startUp() might be called before ours |
| this.systemStartTime = System.currentTimeMillis(); |
| } |
| |
| /** |
| * Gets run time memory. |
| * |
| * @return m run time memory |
| */ |
| public Map<String, Long> getMemory() { |
| Map<String, Long> m = new HashMap<>(); |
| Runtime runtime = Runtime.getRuntime(); |
| m.put("total", runtime.totalMemory()); |
| m.put("free", runtime.freeMemory()); |
| return m; |
| } |
| |
| /** |
| * Gets UP time. |
| * |
| * @return UP time |
| */ |
| public Long getUptime() { |
| RuntimeMXBean rb = ManagementFactory.getRuntimeMXBean(); |
| return rb.getUptime(); |
| } |
| |
| /** |
| * Starts the BGP controller. |
| */ |
| public void start() { |
| log.info("Started"); |
| if (!PlatformDependent.isWindows() && !PlatformDependent.maybeSuperUser()) { |
| portNumber = BGP_PRIVILEGED_PORT; |
| } else { |
| portNumber = BGP_PORT_NUM; |
| } |
| this.init(); |
| this.run(); |
| } |
| |
| /** |
| * Stops the BGP controller. |
| */ |
| public void stop() { |
| log.info("Stopped"); |
| serverExecFactory.shutdown(); |
| peerExecFactory.shutdown(); |
| cg.close(); |
| } |
| |
| /** |
| * Returns port number. |
| * |
| * @return port number |
| */ |
| public static short getBgpPortNum() { |
| if (isPortNumSet) { |
| return PORT_NUM_ZERO; |
| } |
| |
| return portNumber; |
| } |
| |
| /** |
| * sets the isPortNumSet as true. |
| */ |
| public void setBgpPortNum() { |
| isPortNumSet = true; |
| } |
| } |