优化代码，性能暴涨
This commit is contained in:
Administrator
@@ -0,0 +1,569 @@
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package org.kne.cloud.network.srv6;
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import java.io.IOException;
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import java.net.Inet6Address;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.UnknownHostException;
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import java.nio.ByteBuffer;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.Map.Entry;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.CopyOnWriteArrayList;
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import java.util.concurrent.Executor;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.concurrent.locks.ReentrantLock;
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import java.util.concurrent.locks.ReentrantReadWriteLock;
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import java.util.function.Consumer;
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import org.kne.acclerate.FastLib;
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import org.kne.cloud.network.NetworkPacket;
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import org.kne.cloud.network.ipv6.FlowSession;
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import org.kne.cloud.network.ipv6.IPv6NetworkLink;
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import org.kne.cloud.network.ipv6.IPv6Packet;
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import org.kne.cloud.network.ipv6.IPv6Packet.IPv6DestinationHeader;
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import org.kne.cloud.network.ipv6.IPv6Packet.IPv6ExtHeader;
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import org.kne.cloud.network.ipv6.IPv6Packet.IPv6Payload;
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import org.kne.cloud.network.ipv6.IPv6Packet.IPv6RoutingHeader;
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import org.kne.cloud.network.ipv6.IPv6Packet.IPv6SegmentRoutingHeader;
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import org.kne.cloud.network.ipv6.IPv6TUNLoopbackNetworkLink;
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import org.kne.cloud.network.ipv6.Inet6AddressGroup;
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import org.kne.cloud.network.ipv6.Neighbor;
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import org.kne.cloud.network.ipv6.RouteItem;
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import org.kne.cloud.network.klalb.BindableKLALBPacketConsumer;
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import org.kne.cloud.network.klalb.KLALBController;
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import org.kne.cloud.network.klalb.KLALBRemoteLine;
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import org.kne.cloud.network.monitor.MonitorData;
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import org.kne.cloud.network.monitor.SpeedAndTrafficAndDelayMonitorDataImpl;
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import org.kne.cloud.network.tun.TUNNetworkDevice;
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import org.kne.concurrent.HighPerformanceExecutor;
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import org.kne.io.KNEChannels;
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import org.pcap4j.packet.IcmpV6CommonPacket;
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import org.pcap4j.packet.IcmpV6TimeExceededPacket;
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import org.pcap4j.packet.IllegalRawDataException;
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import org.pcap4j.packet.IpV6ExtRoutingPacket;
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import org.pcap4j.packet.IpV6ExtRoutingPacket.IpV6ExtRoutingHeader;
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import org.pcap4j.packet.IpV6Packet;
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import org.pcap4j.packet.IpV6Packet.Builder;
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import org.pcap4j.packet.IpV6RoutingSourceRouteData;
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import org.pcap4j.packet.IpV6SimpleFlowLabel;
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import org.pcap4j.packet.IpV6SimpleTrafficClass;
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import org.pcap4j.packet.Packet;
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import org.pcap4j.packet.Packet.Header;
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import org.pcap4j.packet.TcpPacket;
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import org.pcap4j.packet.TcpPacket.TcpHeader;
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import org.pcap4j.packet.UnknownPacket;
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import org.pcap4j.packet.namednumber.IcmpV6Code;
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import org.pcap4j.packet.namednumber.IcmpV6Type;
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import org.pcap4j.packet.namednumber.IpNumber;
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import org.pcap4j.packet.namednumber.IpV6RoutingType;
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import org.pcap4j.packet.namednumber.IpVersion;
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import com.google.gson.internal.Pair;
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public class SRv6Router {
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private static final boolean debug = false;
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public static final int MTU = 9000;
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public static final IpV6RoutingType SRH_HEADER = new IpV6RoutingType((byte) 4, "SRH Header");
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// private List<NetworkLink>links=new ArrayList<>();
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private List<RouteItem> routeTabel = new ArrayList<>();
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private List<IPv6NetworkLink> linkTabel = new CopyOnWriteArrayList<>();
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public List<IPv6NetworkLink> getLinkTabel() {
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return linkTabel;
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}
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// private ConcurrentHashMap<FlowSession,SlidingWindowInformation>swis=new
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// ConcurrentHashMap<>();
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private final LoopbackIPv6NetworkLink inLoopBack = new LoopbackIPv6NetworkLink();
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//private final LoopbackIPv6NetworkLink inLoopBackSRv6;
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private final LoopbackIPv6NetworkLink hostLoopBack ;
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private class LoopbackIPv6NetworkLink implements IPv6NetworkLink {
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private Inet6AddressGroup loopbackAddress;
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public LoopbackIPv6NetworkLink() {
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super();
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try {
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this.loopbackAddress=new Inet6AddressGroup( (Inet6Address) Inet6Address.getByName("::1"),128);
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} catch (UnknownHostException e) {
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// TODO 自动生成的 catch 块
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e.printStackTrace();
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}
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}
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public LoopbackIPv6NetworkLink(Inet6Address loopbackAddress) {
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super();
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this.loopbackAddress = new Inet6AddressGroup(loopbackAddress,128);
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}
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public Consumer<IPv6Packet> getReceiveConsumer() {
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return receiveConsumer;
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}
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private Consumer<IPv6Packet> receiveConsumer;
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@Override
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public void sendPacket(IPv6Packet pack, Inet6Address next) throws IOException {
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PacketConsumer pcm;
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if ((pcm = protocolNumberRegister.get(pack.getPayload().getProtocolNumber())) != null) {
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pcm.accept(pack);
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return;
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}
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}
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@Override
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public boolean isLoopBack() {
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return true;
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}
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@Override
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public List<Neighbor> getNeighborsInfo() {
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List<Neighbor> hs = new ArrayList<>();
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return hs;
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}
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@Override
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public boolean isCongress(IPv6Packet iPv6Packet) {
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return false;
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}
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@Override
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public String getName() {
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return "inLoopBack";
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}
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@Override
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public boolean isUp() {
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return true;
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}
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@Override
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public boolean canSend(IPv6Packet iPv6Packet) {
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//System.out.println(iPv6Packet.getPayload().getProtocolNumber());
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return protocolNumberRegister.containsKey(iPv6Packet.getPayload().getProtocolNumber());
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}
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@Override
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public void setReceiveConsumer(Consumer<IPv6Packet> con) {
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this.receiveConsumer = con;
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}
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@Override
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public Inet6AddressGroup getAddressGroup() {
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return loopbackAddress;
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}
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};
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public List<RouteItem> getRouteTabel() {
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return routeTabel;
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}
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public List<RouteItem> getCurrentRouteTabel() {
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return routeTabel0;
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}
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private Consumer<IPv6Packet> defaultReceive = new Consumer<IPv6Packet>() {
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@Override
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public void accept(IPv6Packet t) {
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HighPerformanceExecutor.defaultExecutor.execute(() -> {
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routePacket(t);
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t.putTimePassport("routed");
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});
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}
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};
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private Consumer<IPv6Packet> srhReceive = new Consumer<IPv6Packet>() {
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@Override
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public void accept(IPv6Packet t) {
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HighPerformanceExecutor.defaultExecutor.execute(() -> {
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insertSRHandRoutePacket(t);
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});
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}
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};
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public void updateRouteTabel() {
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List<RouteItem> routeTabel0x = new ArrayList<>();
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for (Iterator<IPv6NetworkLink> iterator = linkTabel.iterator(); iterator.hasNext();) {
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IPv6NetworkLink nlink = (IPv6NetworkLink) iterator.next();
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if (nlink.isLoopBack()) {
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if (nlink instanceof IPv6TUNLoopbackNetworkLink) {
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routeTabel0x.add(new RouteItem(new Inet6AddressGroup(nlink.getAddressGroup().getAddress(), 128),
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nlink.getAddressGroup().getAddress(), nlink, "Direct", 0, 1, null, "D"));
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} else {
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routeTabel0x.add(new RouteItem(new Inet6AddressGroup(nlink.getAddressGroup().getAddress(), 128),
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nlink.getAddressGroup().getAddress(), nlink, "Direct", 0, 0, null, "D"));
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}
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}/*else {
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routeTabel0x.add(new RouteItem(new Inet6AddressGroup(nlink.getAddressGroup().getAddress(), 128),
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nlink.getAddressGroup().getAddress(), inLoopBack, "Direct", 0, 0, null, "D"));
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}*/
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for (Iterator<Neighbor> iteratorx = nlink.getNeighborsInfo()
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.iterator(); iteratorx.hasNext();) {
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Neighbor addresses = (Neighbor) iteratorx.next();
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RouteItem ri = new RouteItem(new Inet6AddressGroup(addresses.getAddress().getAddress(), 128), addresses.getAddress().getAddress(),
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nlink, "Direct", 0, 128, addresses.getMonitor(), "D");
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routeTabel0x.add(ri);
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RouteItem ris = new RouteItem(addresses.getLocator(), (Inet6Address) addresses.getLocator().getAddress(),
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nlink, "KLALB SRv6", 13, 128, addresses.getMonitor(), "D");
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routeTabel0x.add(ris);
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}
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if (nlink instanceof IPv6TUNLoopbackNetworkLink) {
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nlink.setReceiveConsumer(srhReceive);
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} else {
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nlink.setReceiveConsumer(defaultReceive);
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}
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}
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routeTabel0x.addAll(routeTabel);
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Collections.sort(routeTabel0x);
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routeTabel0 = routeTabel0x;
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}
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private Inet6AddressGroup locator;
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/*
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* public List<NetworkLink> getLinks() { return links; }
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*/
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public Inet6AddressGroup getLocator() {
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return locator;
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}
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public void setLocator(Inet6AddressGroup locator) {
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this.locator = locator;
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updateRouteTabel();
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}
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private ConcurrentHashMap<FlowSession, TCPTransimitAgent> swist = new ConcurrentHashMap<>();
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// private AtomicLong qsn=new AtomicLong();
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public void insertSRHandRoutePacket(IPv6Packet ipp) {
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insertSRH(ipp);
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ipp.putTimePassport("SRH inserted");
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routePacket(ipp);
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ipp.putTimePassport("routed");
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}
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public void insertSRH(IPv6Packet ipp) {
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if (klalbRouteProtol != null) {
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List<Inet6Address> segs = klalbRouteProtol.createSegmentList(ipp.getDestinationAddress());
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// System.out.println(segs);
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if (segs != null && (!segs.isEmpty())) {
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/*
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* List<SRv6TLV>tlvs=new ArrayList<>(1); if(ipp.getPayload().getType()==6) {
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* SRv6StreamSequenceTLV sers= new SRv6StreamSequenceTLV();
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* sers.setSequence(qsn.getAndIncrement()); tlvs.add(sers); }
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*/
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//IpV6RoutingSRHData srh = new IpV6RoutingSRHData(segs);
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IPv6SegmentRoutingHeader irh = new IPv6SegmentRoutingHeader(segs);
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ipp.getHeaders().add(irh);
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ipp.setDestinationAddress(segs.get(segs.size() - 1));
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/*
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* if(ipp.getPayload().getType()==6) System.out.println(ipp);
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*/
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}
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}
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}
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private volatile List<RouteItem> routeTabel0 = new ArrayList<>();
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// private ReentrantReadWriteLock routelock=new ReentrantReadWriteLock();
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public void routePacket(IPv6Packet iPv6Packet) {
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// routelock.readLock().lock();
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// try {
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// System.out.println("路由表："+routeTabel0);
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StringBuilder dbg=null;
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if (debug) {
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dbg=new StringBuilder();
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}
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iPv6Packet.lockAll();
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try {
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if(iPv6Packet.isSomeDisposed())
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return;
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int hop = iPv6Packet.getHopLimit();
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if (hop > 0) {
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// List<RouteItem> mached=new ArrayList<>();
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// RouteItem pri=null;
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Inet6Address ia = iPv6Packet.getDestinationAddress();
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if (debug) {
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dbg.append("----------------------------------------\n");
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dbg.append("packet:" + iPv6Packet.getSourceAddress().getHostAddress() + "->"
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+ iPv6Packet.getDestinationAddress().getHostAddress()+"\n");
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}
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for (int i = 0; i < routeTabel0.size(); i++) {
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RouteItem tri = routeTabel0.get(i);
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if (!tri.checkMatch(ia)) {
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if (debug) {
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dbg.append(tri+"\n");
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dbg.append("unmatched.\n");
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}
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continue;
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}
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if (!tri.getDestlink().isUp()) {
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if (debug) {
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dbg.append(tri+"\n");
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dbg.append("linkdown.\n");
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}
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continue;
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}
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if (tri.getDestlink().isCongress(iPv6Packet)) {
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if (debug) {
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dbg.append(tri+"\n");
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dbg.append("congress.\n");
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}
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continue;
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}
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if (!tri.getDestlink().canSend(iPv6Packet)) {
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if (debug) {
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dbg.append(tri+"\n");
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dbg.append("linkrefused.\n");
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}
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continue;
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}
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if (debug) {
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dbg.append(tri+"\n");
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dbg.append("matched.\n");
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}
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processPacket(iPv6Packet, tri);
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return;
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/*
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* if(pri==null||pri.equals(tri)) { mached.add(tri); pri=tri; }else { break; }
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*/
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}
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if (debug) {
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dbg.append("miss.\n");
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}
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if (iPv6Packet.isEnableECN()) {
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iPv6Packet.markCE();
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for (int i = 0; i < routeTabel0.size(); i++) {
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RouteItem tri = routeTabel0.get(i);
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if (tri.checkMatch(ia)) {
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if (!tri.getDestlink().isUp()) {
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continue;
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}
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processPacket(iPv6Packet, tri);
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return;
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/*
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* if(pri==null||pri.equals(tri)) { mached.add(tri); pri=tri; }else { break; }
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*/
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}
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}
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}
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if (debug)
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dbg.append("congress\n");
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// System.out.println(ia.getAddress()+" match "+ri);
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/*
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* for (Iterator iterator = mached.iterator(); iterator.hasNext();) { RouteItem
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* routeItem = (RouteItem) iterator.next();
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* if(routeItem.getDestlink().isCongress()) {
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*
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* }else { processPacket(iPv6Packet,pri); break; } }
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*/
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// else
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// System.out.println("路由失败："+iPv6Packet);
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} else {
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IcmpV6TimeExceededPacket.Builder icmpte = new IcmpV6TimeExceededPacket.Builder();
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ByteBuffer IPv6data = NetworkPacket.databufferpool_65535.borrow();
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iPv6Packet.writeToChannel(KNEChannels.newWritableChannel(IPv6data));
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byte[] raw = new byte[IPv6data.remaining()];
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IPv6data.get(0, raw);
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icmpte.payload(IpV6Packet.newPacket(raw, 0, raw.length));
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IcmpV6CommonPacket.Builder icbd = new IcmpV6CommonPacket.Builder();
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icbd.type(IcmpV6Type.TIME_EXCEEDED);
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icbd.code(IcmpV6Code.HOP_LIMIT_EXCEEDED);
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icbd.srcAddr(locator.getAddress());
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icbd.dstAddr(iPv6Packet.getSourceAddress());
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icbd.correctChecksumAtBuild(true);
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icbd.payloadBuilder(icmpte);
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IPv6Packet icmpv = new IPv6Packet();
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icmpv.setSourceAddress(locator.getAddress());
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icmpv.setDestinationAddress(iPv6Packet.getSourceAddress());
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icmpv.setTrafficClass(iPv6Packet.getTrafficClass());
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icmpv.setVersion(6);
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icmpv.setFlowLabel(0);
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icmpv.setHopLimit(255);
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IPv6Payload ipl = new IPv6Payload(IpNumber.ICMPV6.value());
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ipl.getData().put(icbd.build().getRawData());
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ipl.getData().flip();
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icmpv.setPayload(ipl);
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insertSRHandRoutePacket(icmpv);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}finally {
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if(debug) {
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System.out.println(dbg.toString());
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}
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iPv6Packet.unlockAll();
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}
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// }finally {
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// routelock.readLock().unlock();
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// }
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}
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private void processPacket(IPv6Packet iPv6Packet, RouteItem ri) throws IllegalRawDataException, IOException {
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int hop = iPv6Packet.getHopLimit();
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if (ri.getDestlink().isLoopBack()) {
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IPv6SegmentRoutingHeader srhh = getSRHHeaderFromPacket(iPv6Packet);
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if (srhh != null) {
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processSRv6Packet(iPv6Packet, ri, srhh);
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} else {
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ri.getDestlink().sendPacket(iPv6Packet, ri.getNexthop());
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}
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} else {
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hop--;
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// System.out.println(ipp.getHeader().getSrcAddr()+"->"+ipp.getHeader().getDstAddr()+"
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// "+(hop+1)+"->"+hop);
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if (hop > 0) {
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||||
|
||||
iPv6Packet.setHopLimit(hop);
|
||||
ri.getDestlink().sendPacket(iPv6Packet, ri.getNexthop());
|
||||
} else {
|
||||
IcmpV6TimeExceededPacket.Builder icmpte = new IcmpV6TimeExceededPacket.Builder();
|
||||
ByteBuffer IPv6data = NetworkPacket.databufferpool_65535.borrow();
|
||||
iPv6Packet.writeToChannel(KNEChannels.newWritableChannel(IPv6data));
|
||||
byte[] raw = new byte[IPv6data.remaining()];
|
||||
IPv6data.get(0, raw);
|
||||
icmpte.payload(IpV6Packet.newPacket(raw, 0, raw.length));
|
||||
|
||||
IcmpV6CommonPacket.Builder icbd = new IcmpV6CommonPacket.Builder();
|
||||
icbd.type(IcmpV6Type.TIME_EXCEEDED);
|
||||
icbd.code(IcmpV6Code.HOP_LIMIT_EXCEEDED);
|
||||
icbd.srcAddr(locator.getAddress());
|
||||
icbd.dstAddr(iPv6Packet.getSourceAddress());
|
||||
icbd.correctChecksumAtBuild(true);
|
||||
icbd.payloadBuilder(icmpte);
|
||||
|
||||
IPv6Packet icmpv = new IPv6Packet();
|
||||
icmpv.setSourceAddress(locator.getAddress());
|
||||
icmpv.setDestinationAddress(iPv6Packet.getSourceAddress());
|
||||
icmpv.setTrafficClass(iPv6Packet.getTrafficClass());
|
||||
icmpv.setVersion(6);
|
||||
icmpv.setFlowLabel(0);
|
||||
icmpv.setHopLimit(255);
|
||||
IPv6Payload ipl = new IPv6Payload(IpNumber.ICMPV6.value());
|
||||
ipl.getData().put(icbd.build().getRawData());
|
||||
ipl.getData().flip();
|
||||
icmpv.setPayload(ipl);
|
||||
insertSRHandRoutePacket(icmpv);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
private void processSRv6Packet(IPv6Packet iPv6Packet, RouteItem ri, IPv6SegmentRoutingHeader srhh)
|
||||
throws IllegalRawDataException, IOException {
|
||||
/*byte[] srd = new byte[(int) (srhh.getLength() - 4)];
|
||||
srhh.getData().get(4, srd);
|
||||
IpV6RoutingSRHData srh = IpV6RoutingSRHData.newInstance(srd, 0, srd.length);*/
|
||||
if (srhh.getSegmentsLeft() <= 0) {
|
||||
ri.getDestlink().sendPacket(iPv6Packet, ri.getNexthop());
|
||||
} else {
|
||||
|
||||
int newSL = srhh.getSegmentsLeft() - 1;
|
||||
srhh.setSegmentsLeft(newSL);
|
||||
iPv6Packet.setDestinationAddress(srhh.getAddresses().get(newSL));
|
||||
klalbRouteProtol.putHotspotAddress(iPv6Packet.getSourceAddress());
|
||||
routePacket(iPv6Packet);
|
||||
}
|
||||
}
|
||||
|
||||
private IPv6SegmentRoutingHeader getSRHHeaderFromPacket(IPv6Packet iPv6Packet) {
|
||||
IPv6SegmentRoutingHeader srhh = null;
|
||||
List<IPv6ExtHeader> exhs = iPv6Packet.getHeaders();
|
||||
for (int j = 0; j < exhs.size(); j++) {
|
||||
IPv6ExtHeader exh = exhs.get(j);
|
||||
if (exh instanceof IPv6SegmentRoutingHeader) {
|
||||
if (((IPv6SegmentRoutingHeader) exh).getRoutingType() == 4) {
|
||||
srhh = (IPv6SegmentRoutingHeader) exh;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return srhh;
|
||||
}
|
||||
|
||||
public SRv6Router(Inet6AddressGroup hostAddress) {
|
||||
super();
|
||||
this.locator = hostAddress;
|
||||
//this.inLoopBackSRv6=new LoopbackIPv6NetworkLink(locator.getAddress());
|
||||
this.hostLoopBack= new LoopbackIPv6NetworkLink(hostAddress.getAddress());
|
||||
linkTabel.add(inLoopBack);
|
||||
//linkTabel.add(inLoopBackSRv6);
|
||||
linkTabel.add(hostLoopBack);
|
||||
}
|
||||
|
||||
/*public SRv6Router() {
|
||||
super();
|
||||
linkTabel.add(inLoopBack);
|
||||
}*/
|
||||
|
||||
private KLALBRoutingProtocol klalbRouteProtol = null;
|
||||
|
||||
public void runKLALBRouteProtocol() {
|
||||
if (klalbRouteProtol != null)
|
||||
throw new IllegalStateException("KLALB routing protocol is already running!");
|
||||
klalbRouteProtol = new KLALBRoutingProtocol(this);
|
||||
klalbRouteProtol.start();
|
||||
}
|
||||
|
||||
public KLALBRoutingProtocol getKlalbRouteProtol() {
|
||||
return klalbRouteProtol;
|
||||
}
|
||||
|
||||
private Map<Integer, PacketConsumer> protocolNumberRegister = new ConcurrentHashMap<>();
|
||||
|
||||
public Map<Integer, PacketConsumer> getProtocolNumberRegister() {
|
||||
return protocolNumberRegister;
|
||||
}
|
||||
|
||||
public void putProtocolNumberPacketAndInsertSRH(IPv6Packet pkt) {
|
||||
// inLoopBack.getReceiveConsumer().accept(pkt);
|
||||
srhReceive.accept(pkt);
|
||||
}
|
||||
|
||||
public void putProtocolNumberPacket(IPv6Packet pkt) {
|
||||
// inLoopBack.getReceiveConsumer().accept(pkt);
|
||||
defaultReceive.accept(pkt);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user