Java Tcp类代码示例

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本文整理汇总了Java中org.jnetpcap.protocol.tcpip.Tcp类的典型用法代码示例。如果您正苦于以下问题：Java Tcp类的具体用法？Java Tcp怎么用？Java Tcp使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

Tcp类属于org.jnetpcap.protocol.tcpip包，在下文中一共展示了Tcp类的17个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: recalculateChecksums

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * Recalculates the checksums as configured.
 *
 * @param packet the captured packet
 * @param originalChecksumValid boolean that holds whether the checksum was valid before modification.
 */
private void recalculateChecksums(final JPacket packet, final boolean originalChecksumValid) {
    for (int checksumType : _checksumList) {
        // The ip4 or ip6 checksum should be updated first.
        if (checksumType == Ip4.ID && originalChecksumValid) {
            if (packet.hasHeader(Ip4.ID)) {
                Ip4 ip4 = packet.getHeader(new Ip4());
                ip4.recalculateChecksum();
            }
        }
        if (checksumType == Udp.ID && packet.hasHeader(Udp.ID)) {
            recalulateUdpChecksum(packet);
        }
        if (checksumType == Tcp.ID && packet.hasHeader(Tcp.ID)) {
            Tcp tcp = packet.getHeader(new Tcp());
            tcp.recalculateChecksum();
        }
        if (checksumType == Icmp.ID && packet.hasHeader(Icmp.ID)) {
            Icmp icmp = packet.getHeader(new Icmp());
            icmp.recalculateChecksum();
        }
    }
}

开发者ID:NCSC-NL，项目名称:PEF，代码行数:29，代码来源:JNetPcapPacketModifier.java

示例2: setPacket

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * Set the value of the field packet
 * @param packet the new packet to set
 */
public boolean setPacket(final PcapPacket packet) {
	boolean unkown = false;
	_packet = packet;
	eth = packet.getHeader(new Ethernet());
	ip = packet.getHeader(new Ip4());
	tcp = packet.getHeader(new Tcp());
	if (tcp == null) {
		udp = packet.getHeader(new Udp());
		if (udp == null) {
			icmp = packet.getHeader(new Icmp());
			if (icmp == null) {
				unkown = true;
				setProtocol(Protocol.OTHER);
			} else {
				setProtocol(Protocol.ICMP);
			}
		} else {
			setProtocol(Protocol.UDP);
		}
	} else {
		setProtocol(Protocol.TCP);
	}
	return !unkown;
}

开发者ID:leolewis，项目名称:openvisualtraceroute，代码行数:29，代码来源:JNetCapPacketPoint.java

示例3: testFlagsToEnumSet

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * Bug#3321797
 * 
 * <pre>
 * Details:
 * I use the following snippet to reproduce the bug.
 * I hope the information is sufficient for you to track it down.
 * Thanks a lot for this very nice software!
 * 
 * </pre>
 */
public void testFlagsToEnumSet() {
	/*
	 * 
	 * From org.jnetpcap.protocol.tcpip.Tcp
	 * 
	 * The Constant FLAG_ACK. private static final int FLAG_ACK = 0x10;
	 * 
	 * ...
	 * 
	 * The Constant FLAG_SYN. private static final int FLAG_SYN = 0x02;
	 */
	int flags = 0x02 | 0x10;

	Set<Tcp.Flag> flagSet = Tcp.Flag.asSet(flags);

	assertEquals("[SYN, ACK]", flagSet.toString());
	assertEquals(EnumSet.of(Flag.ACK, Flag.SYN), flagSet);

	/*
	 * Result: java.lang.AssertionError: expected:<[ACK, SYN]> but
	 * was:<[CWR, PSH]> ...
	 * 
	 * JNetPcap Version: jnetpcap-1.4.r1300-1
	 */
}

开发者ID:pvenne，项目名称:jgoose，代码行数:37，代码来源:TestTcpIp.java

示例4: nextPacket

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
@Override
public void nextPacket(JPacket packet, T cookie) {
    if (packet.hasHeader(Ip4.ID) && packet.hasHeader(Tcp.ID)) {

        packet.getHeader(ip4);
        packet.getHeader(tcp);

        final int payloadLength = tcp.getPayloadLength();
        if (payloadLength > 0) {
            switch (packetFilter.filter(ip4, tcp)) {
                case Inbound:
                    inboundFlowHandler.parse(packet, tcp.getPayloadOffset(), payloadLength, cookie);
                    break;
                case Outbound:
                    outboundFlowHandler.parse(packet, tcp.getPayloadOffset(), payloadLength, cookie);
                    break;
                case Skip:
                    break;
            }
        }
    }
}

开发者ID:andymalakov，项目名称:libpcap-latency-meter，代码行数:23，代码来源:LatencyMeterPacketHandler.java

示例5: isDns

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * Check for DNS packets if required that only DNS packets should be handled.
 *
 * @param packet the captured packet.
 * @return true if the packet is a dns packet.
 */
private boolean isDns(final JPacket packet) {
    if (packet.hasHeader(Udp.ID)) {
        final Udp udp = packet.getHeader(new Udp());
        return (udp.source() == 53 || udp.destination() == 53);
    }
    else if (packet.hasHeader(Tcp.ID)) {
        final Tcp tcp = packet.getHeader(new Tcp());
        return (tcp.source() == 53 || tcp.destination() == 53);
    }
    return false;
}

开发者ID:NCSC-NL，项目名称:PEF，代码行数:18，代码来源:JNetPcapPacketModifier.java

示例6: creatPacket

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
private JMemoryPacket creatPacket(final InetAddress destIp, final InetAddress sourceIP) {
	final int packetSize = 500;
	final JMemoryPacket packet = new JMemoryPacket(packetSize);
	packet.order(ByteOrder.BIG_ENDIAN);
	packet.setUShort(0 + 12, 0x800); // ethernet.type field
	packet.scan(Ethernet.ID);

	final Ethernet ethernet = packet.getHeader(new Ethernet());
	ethernet.destination(destIp.getAddress());
	ethernet.source(sourceIP.getAddress());

	packet.setUByte(14, 0x04 | 0x05); // ip v4
	packet.scan(Ethernet.ID);

	//			final JPacket sendPacket = new JMemoryPacket(JProtocol.ETHERNET_ID, " 001801bf 6adc0025 4bb7afec 08004500 "
	//					+ " 0041a983 40004006 d69ac0a8 00342f8c " + " ca30c3ef 008f2e80 11f52ea8 4b578018 "
	//					+ " ffffa6ea 00000101 080a152e ef03002a " + " 2c943538 322e3430 204e4f4f 500d0a");

	final Ip4 sendPacketIP = packet.getHeader(new Ip4());
	//			sendPacketIP.destination(destIp.getAddress());
	sendPacketIP.type(0x06); //TCP
	sendPacketIP.length(packetSize - ethernet.size());
	sendPacketIP.ttl(1);

	packet.setUByte(46, 0x50); // TCP
	packet.scan(Ethernet.ID);

	final Tcp sendPacketTcp = packet.getHeader(new Tcp());
	sendPacketTcp.destination(80);
	sendPacketIP.checksum(sendPacketIP.calculateChecksum());
	sendPacketTcp.checksum(sendPacketTcp.calculateChecksum());

	final Payload payload = packet.getHeader(new Payload());
	payload.setByteArray(1, "Neko".getBytes());
	return packet;
}

开发者ID:leolewis，项目名称:openvisualtraceroute，代码行数:37，代码来源:JNetCapTraceRoute.java

示例7: converge

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * 将数据包汇聚成网络流
 * @param data
 */
private void converge(List<PacketInfo> data) {
    for (PacketInfo packetInfo : data) {
        PcapPacket packet = packetInfo.getPacket();
        Ip4 ip4 = new Ip4();
        Tcp tcp = new Tcp();

        if (!packet.hasHeader(ip4) || !packet.hasHeader(tcp)) continue;

        NetFlow netFlow = find(packetInfo);
        if (tcp.flags_SYN()) {      // SYN 作为TCP建立连接的标识，创建网络流
            if (netFlow == null) {
                netFlow = new NetFlow(ip4.sourceToInt(), ip4.destinationToInt(),
                        tcp.source(), tcp.destination());
                netFlow.add(packetInfo);
                netFlows.add(netFlow);
            }
        } else if (tcp.flags_FIN()) {
            if (netFlow != null) {
                netFlow.setClosed(true);        // FIN作为TCP结束标识，关闭网络流
            }
        } else {                    // 加入到已存在的网络流中
            if (netFlow != null && !netFlow.isClosed()) {
                netFlow.add(packetInfo);
            }
        }
    }
}

开发者ID:whinc，项目名称:PcapAnalyzer，代码行数:32，代码来源:ClusterModule.java

示例8: contain

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * 判断数据包是否属于当前网络流
 * @param packetInfo
 * @return
 */
public boolean contain(PacketInfo packetInfo) {
    boolean b = false;

    PcapPacket packet = packetInfo.getPacket();
    Tcp tcp = new Tcp();
    Ip4 ip4 = new Ip4();
    if (packet.hasHeader(ip4)
            && packet.hasHeader(tcp) ) {
        if (ip4.sourceToInt() == srcIp
                && ip4.destinationToInt() == dstIp
                && tcp.source() == srcPort
                && tcp.destination() == dstPort) {
            packetInfo.setReversed(false);
            b = true;
        } else if (ip4.sourceToInt() == dstIp
                && ip4.destinationToInt() == srcIp
                && tcp.source() == dstPort
                && tcp.destination() == srcPort) {
            packetInfo.setReversed(true);
            b = true;
        }
    }
    return b;
}

开发者ID:whinc，项目名称:PcapAnalyzer，代码行数:30，代码来源:NetFlow.java

示例9: testTcpOptions

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * Test tcp options.
 * 
 * <pre>
 * 
 * </pre>
 */
public void testTcpOptions() {
	JPacket packet = TestUtils.getPcapPacket(SMALL_IMAP, 1 - 1);
	System.out.println(packet.getState().toDebugString());
	System.out.println(packet.toString());

	Tcp tcp = packet.getHeader(new Tcp());
	Tcp.Timestamp ts = new Tcp.Timestamp();

	if (tcp.hasSubHeader(ts)) {
		System.out.printf("tsval=%d tsecr=%d%n", ts.tsval(), ts.tsecr());
	}
}

开发者ID:pvenne，项目名称:jgoose，代码行数:20，代码来源:TestTcpIp.java

示例10: TCPPacket

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
public TCPPacket(PcapPacket packet) {
    packetTime = Instant.now();
    Ip4 ip4 = packet.getHeader(new Ip4());
    Tcp tcp = packet.getHeader(new Tcp());
    connectionInfo = new TCPConnectionInfo(ip4.sourceToInt(), tcp.source(), ip4.destinationToInt(), tcp.destination());
    seqNumber = tcp.seq();
    ackNumber = tcp.ack();
    tcpFlags = tcp.flags();
    JBuffer storage = new JBuffer(JMemory.Type.POINTER);
    JBuffer packetPayload = tcp.peerPayloadTo(storage);
    payload = new byte[packetPayload.size()];
    packetPayload.getByteArray(0, payload);
}

开发者ID:vincentzhang96，项目名称:HearthCaptureLib，代码行数:14，代码来源:TCPPacket.java

示例11: filter

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
@Override
public Direction filter(Ip4 ip4, Tcp tcp) {
    if (Arrays.equals(localIpAddress, ip4.destination()))
        return Direction.Inbound;
    if (Arrays.equals(localIpAddress, ip4.source()))
        return Direction.Outbound;

    return Direction.Skip;
}

开发者ID:andymalakov，项目名称:libpcap-latency-meter，代码行数:10，代码来源:HostBasedPacketFilter.java

示例12: filter

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
@Override
public Direction filter(Ip4 ip4, Tcp tcp) {
    if (tcp.source() == inboundPort)
        return Direction.Inbound;
    if (tcp.destination() == outboundPort)
        return Direction.Outbound;

    return Direction.Skip;
}

开发者ID:andymalakov，项目名称:libpcap-latency-meter，代码行数:10，代码来源:PortBasedTcpPacketFilter.java

示例13: testTcpIp4CRC16UsingHandler

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * Test tcp ip4 cr c16 using handler.
 */
public void testTcpIp4CRC16UsingHandler() {
	StringBuilder errbuf = new StringBuilder();
	Pcap pcap = Pcap.openOffline(TestUtils.HTTP, errbuf);

	assertNotNull(errbuf.toString(), pcap);

	pcap.loop(Pcap.LOOP_INFINATE, new PcapPacketHandler<String>() {
		Ip4 ip = new Ip4();

		Tcp tcp = new Tcp();

		// public void nextPacket(PcapHeader header, JBuffer buffer, String
		// user)
		// {
		public void nextPacket(PcapPacket packet, String user) {

			if (packet.hasHeader(tcp) == false) {
				return;
			}

			// PcapPacket packet = new PcapPacket(header, buffer);

			long f = packet.getFrameNumber();
			assertTrue("#" + f, packet.hasHeader(ip));

			final int crc = Checksum.pseudoTcp(packet, ip.getOffset(),
					tcp.getOffset());

			if (crc != 0 && tcp.checksum() != crc) {
				System.out.println(tcp);
				System.out.printf("#%d: tcp.crc=%x computed=%x\n", f,
						tcp.checksum(), crc);
				// System.out.println(ip.toHexdump());
				// System.out.println(tcp.toHexdump());
				System.exit(0);
			}

			// assertEquals("Frame #" + f, tcp.checksum(), crc);
		}

	}, null);
}

开发者ID:pvenne，项目名称:jgoose，代码行数:46，代码来源:TestTcpIp.java

示例14: testSendPacketUsingJBuffer

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * Test send packet using j buffer.
 * 
 * @throws UnknownHostException
 *           the unknown host exception
 */
public void testSendPacketUsingJBuffer() throws UnknownHostException {
	JPacket packet =
	    new JMemoryPacket(JProtocol.ETHERNET_ID,
	        "0016b6c13cb10021 5db0456c08004500 "
	            + "00340e8e40008006 9c54c0a80165d822 "
	            + "b5b1c1cf005020ce 4303000000008002 "
	            + "2000d94300000204 05b4010303020101 " + "0402");

	InetAddress dst = InetAddress.getByName("201.1.1.1");
	InetAddress src = InetAddress.getByName("192.168.1.1");

	Ip4 ip = packet.getHeader(new Ip4());
	Tcp tcp = packet.getHeader(new Tcp());

	ip.destination(dst.getAddress());
	ip.source(src.getAddress());

	ip.checksum(ip.calculateChecksum());
	tcp.checksum(tcp.calculateChecksum());
	packet.scan(Ethernet.ID);

	System.out.println(packet);
	List<PcapIf> alldevs = new ArrayList<PcapIf>(); // Will be filled with NICs
	StringBuilder errbuf = new StringBuilder(); // For any error msgs
	/***************************************************************************
	 * First get a list of devices on this system
	 **************************************************************************/
	int r = Pcap.findAllDevs(alldevs, errbuf);
	if (r == Pcap.NOT_OK || alldevs.isEmpty()) {
		System.err.printf("Can't read list of devices, error is %s", errbuf
		    .toString());
		return;
	}
	PcapIf device = alldevs.get(0); // We know we have atleast 1 device
	/***************************************************************************
	 * Second we open a network interface
	 **************************************************************************/
	int snaplen = 64 * 1024; // Capture all packets, no trucation
	int flags = Pcap.MODE_NON_PROMISCUOUS; // capture all packets
	int timeout = 10 * 1000; // 10 seconds in millis
	Pcap pcap =
	    Pcap.openLive(device.getName(), snaplen, flags, timeout, errbuf);
	System.out.println("Device ->" + device.getName());

	try {
		if (pcap.sendPacket(packet) != Pcap.OK) {
			System.err.println(pcap.getErr());
		}
	} finally {
		/*************************************************************************
		 * Lastly we close
		 ************************************************************************/
		pcap.close();
		
		
	}
}

开发者ID:pvenne，项目名称:jgoose，代码行数:64，代码来源:TestTransmitter.java

示例15: testTcpIp6CRC16UsingHandler

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * Test tcp ip6 cr c16 using handler.
 */
public void testTcpIp6CRC16UsingHandler() {
	StringBuilder errbuf = new StringBuilder();
	Pcap pcap = Pcap.openOffline(HTTP_IP6, errbuf);

	assertNotNull(errbuf.toString(), pcap);

	pcap.loop(Pcap.LOOP_INFINATE, new PcapPacketHandler<String>() {
		Ip6 ip = new Ip6();

		Tcp tcp = new Tcp();

		public void nextPacket(PcapPacket packet, String user) {

			if (packet.hasHeader(tcp) == false) {
				return;
			}

			// PcapPacket packet = new PcapPacket(header, buffer);

			long f = packet.getFrameNumber();
			assertTrue("#" + f, packet.hasHeader(ip));

			assertTrue("Frame #" + f, tcp.isChecksumValid());
		}

	}, null);
}

开发者ID:pvenne，项目名称:jgoose，代码行数:31，代码来源:TestTcpIp.java

示例16: bindToTcp

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
/**
 * Bind to tcp.
 * 
 * @param packet
 *            the packet
 * @param tcp
 *            the tcp
 * @return true, if successful
 */
@Bind(to = Tcp.class)
public static boolean bindToTcp(JPacket packet, Tcp tcp) {
	return tcp.destination() == 3868 || tcp.source() == 3868;
}

开发者ID:pvenne，项目名称:jgoose，代码行数:14，代码来源:Diameter.java

示例17: filter

import org.jnetpcap.protocol.tcpip.Tcp; //导入依赖的package包/类
Direction filter(Ip4 ip4, Tcp tcp);

开发者ID:andymalakov，项目名称:libpcap-latency-meter，代码行数:2，代码来源:TcpPacketFilter.java

注：本文中的org.jnetpcap.protocol.tcpip.Tcp类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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Java Tcp类代码示例

示例1: recalculateChecksums

示例2: setPacket

示例3: testFlagsToEnumSet

示例4: nextPacket

示例5: isDns

示例6: creatPacket

示例7: converge

示例8: contain

示例9: testTcpOptions

示例10: TCPPacket

示例11: filter

示例12: filter

示例13: testTcpIp4CRC16UsingHandler

示例14: testSendPacketUsingJBuffer

示例15: testTcpIp6CRC16UsingHandler

示例16: bindToTcp

示例17: filter

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