Java Code Examples for org.pcap4j.packet.TcpPacket#Builder

The following examples show how to use org.pcap4j.packet.TcpPacket#Builder . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: PacketUpdater.java From trex-stateless-gui with Apache License 2.0

7 votes

private Packet fixL3L4Checksums(Packet packet) {
    Packet.Builder builder = packet.getBuilder();
    builder.get(IpV4Packet.Builder.class).correctChecksumAtBuild(true);

    TcpPacket.Builder tcpBuilder = builder.get(TcpPacket.Builder.class);
    if (tcpBuilder != null) {
        tcpBuilder.srcAddr(packet.get(IpV4Packet.class).getHeader().getSrcAddr());
        tcpBuilder.dstAddr(packet.get(IpV4Packet.class).getHeader().getDstAddr());
        tcpBuilder.correctChecksumAtBuild(true);
    }

    UdpPacket.Builder udpBuilder = builder.get(UdpPacket.Builder.class);
    if (udpBuilder != null) {
        udpBuilder.srcAddr(packet.get(IpV4Packet.class).getHeader().getSrcAddr());
        udpBuilder.dstAddr(packet.get(IpV4Packet.class).getHeader().getDstAddr());
        udpBuilder.correctChecksumAtBuild(true);
    }
    return builder.build();
}

Example 2

Source File: TrexTcpPacket.java From trex-stateless-gui with Apache License 2.0

4 votes

/**
 * Build packet
 */
public void buildPacket() {

    int calculatedLength = getPacketLength() - 14;

    String payloadString = payload.getPayloadType().getPadPayloadString(payload.getPayloadPattern(), calculatedLength * 2);

    UnknownPacket.Builder unknownb = null;
    if (calculatedLength != 0) {
        unknownb = new UnknownPacket.Builder();
        unknownb.rawData(payload.getPayloadPad(payloadString, calculatedLength));
    }
    ArrayList<TcpOption> options = new ArrayList<TcpOption>();

    options.add(TcpEndOfOptionList.getInstance());

    tcpBuilder = new TcpPacket.Builder();
    tcpBuilder.dstPort(dstPort)
            .srcPort(srcPort)
            .sequenceNumber(sequenceNumber)
            .acknowledgmentNumber(acknowledgmentNumber)
            .dataOffset(dataOffset)
            .reserved(reserved)
            .urg(urg)
            .ack(ack)
            .psh(psh)
            .rst(rst)
            .syn(syn)
            .fin(fin)
            .window(window)
            .checksum(checksum)
            .urgentPointer(urgentPointer)
            .options(options)
            .padding(new byte[]{(byte) 0xaa})
            .correctChecksumAtBuild(false)
            .correctLengthAtBuild(false)
            .paddingAtBuild(false);

    if (calculatedLength != 0) {
        tcpBuilder.payloadBuilder(unknownb);
    }
    this.packet = tcpBuilder.build();
}

Example 3

Source File: PacketUtils.java From finalspeed-91yun with GNU General Public License v2.0

4 votes

static Packet createDataPacket(
		MacAddress srcAddress_mac,
		MacAddress dstAddrress_mac,
		Inet4Address srcAddress,short srcPort,
		Inet4Address dstAddress,short dstPort,
		int sequence,int ack, byte[] data,short ident){
	Packet p=null;

	TcpPacket.Builder builder_tcp=new TcpPacket.Builder();
	builder_tcp.payloadBuilder(new UnknownPacket.Builder().rawData(data));
	builder_tcp.correctChecksumAtBuild(true);
	builder_tcp.correctLengthAtBuild(true);
	builder_tcp.paddingAtBuild(true);
	builder_tcp.ack(true);
	builder_tcp.acknowledgmentNumber(ack);
	//builder_tcp.checksum(tcpHeader.getChecksum());
	//builder_tcp.dataOffset((byte)8);
	builder_tcp.dstAddr(dstAddress);
	builder_tcp.dstPort(new TcpPort( dstPort,""));
	builder_tcp.fin(false);
	//builder_tcp.options(tcpHeader.getOptions());
	//builder_tcp.padding(tcpHeader.getPadding());
	builder_tcp.psh(false);
	builder_tcp.reserved((byte) 0);
	builder_tcp.rst(false);
	builder_tcp.sequenceNumber(sequence);
	builder_tcp.srcAddr(srcAddress);
	builder_tcp.srcPort(new TcpPort( srcPort,""));
	builder_tcp.syn(false);
	builder_tcp.urg(false);
	//builder_tcp.urgentPointer(tcpHeader.getUrgentPointer());
	builder_tcp.window( window);

	IpV4Packet.Builder builder_ipv4=new IpV4Packet.Builder();
	builder_ipv4.correctChecksumAtBuild(true);
	builder_ipv4.correctLengthAtBuild(true);
	builder_ipv4.dontFragmentFlag(true);
	builder_ipv4.paddingAtBuild(true);
	builder_ipv4.dstAddr(dstAddress);
	builder_ipv4.fragmentOffset( (short)0);
	//builder_ipv4.headerChecksum(ipV4Header.getHeaderChecksum());
	//short identification= Math.abs(random.nextInt(Short.MAX_VALUE));
	//identification=ident;
	builder_ipv4.identification(ident);
	builder_ipv4.ihl((byte) 5);
	builder_ipv4.moreFragmentFlag(false);
	//builder_ipv4.options(ipV4Header.getOptions());
	//builder_ipv4.padding(ipV4Header.getPadding());

	builder_ipv4.protocol(IpNumber.TCP);
	//builder_ipv4.reservedFlag(ipV4Header.getReservedFlag());
	builder_ipv4.srcAddr(srcAddress);
	builder_ipv4.tos(IpV4Rfc1349Tos.newInstance((byte) 0));
	//builder_ipv4.totalLength( 52);
	builder_ipv4.ttl(ttl);
	builder_ipv4.version(IpVersion.IPV4);
	builder_ipv4.payloadBuilder(builder_tcp);

	p = buildIpV4(srcAddress_mac,dstAddrress_mac,builder_ipv4);

	return p;
}

Example 4

Source File: PacketUtils.java From finalspeed-91yun with GNU General Public License v2.0

4 votes

static Packet createAck(
		MacAddress srcAddress_mac,
		MacAddress dstAddrress_mac,
		Inet4Address srcAddress,short srcPort,
		Inet4Address dstAddress,short dstPort,
		int ack_sequence,int sequence,short ident){

	TcpPacket.Builder builder_tcp=new TcpPacket.Builder();
	//builder_tcp.payloadBuilder(new UnknownPacket.Builder().rawData(new byte[0]));
	builder_tcp.correctChecksumAtBuild(true);
	builder_tcp.correctLengthAtBuild(true);
	builder_tcp.paddingAtBuild(true);
	builder_tcp.ack(true);
	builder_tcp.acknowledgmentNumber(ack_sequence);
	//builder_tcp.checksum(tcpHeader.getChecksum());
	//builder_tcp.dataOffset((byte) 8);
	builder_tcp.dstAddr(dstAddress);
	builder_tcp.dstPort(new TcpPort( dstPort,""));
	//builder_tcp.fin(tcpHeader.getFin());

	builder_tcp.psh(false);
	builder_tcp.reserved((byte) 0);
	builder_tcp.rst(false);
	builder_tcp.sequenceNumber(sequence);
	builder_tcp.srcAddr(srcAddress);
	builder_tcp.srcPort(new TcpPort( srcPort,""));
	builder_tcp.syn(false);
	builder_tcp.urg(false);
	//builder_tcp.urgentPointer(tcpHeader.getUrgentPointer());
	builder_tcp.window( window);

	IpV4Packet.Builder builder_ipv4=new IpV4Packet.Builder();
	builder_ipv4.correctChecksumAtBuild(true);
	builder_ipv4.correctLengthAtBuild(true);
	builder_ipv4.paddingAtBuild(true);
	builder_ipv4.dstAddr(dstAddress);
	builder_ipv4.dontFragmentFlag(true);
	builder_ipv4.fragmentOffset( (short) 0);
	//builder_ipv4.headerChecksum(ipV4Header.getHeaderChecksum());
	//short identification= Math.abs(random.nextInt(Short.MAX_VALUE));
	builder_ipv4.identification(ident);
	builder_ipv4.ihl((byte) 5);
	//builder_ipv4.moreFragmentFlag(ipV4Header.getMoreFragmentFlag());
	//builder_ipv4.options(ipV4Header.getOptions());
	//builder_ipv4.padding(ipV4Header.getPadding());

	builder_ipv4.protocol(IpNumber.TCP);
	//		builder_ipv4.reservedFlag(ipV4Header.getReservedFlag());
	builder_ipv4.srcAddr(srcAddress);
	builder_ipv4.tos(IpV4Rfc1349Tos.newInstance((byte) 0));
	//builder_ipv4.totalLength( 52);
	builder_ipv4.ttl(ttl);
	builder_ipv4.version(IpVersion.IPV4);
	builder_ipv4.payloadBuilder(builder_tcp);
	//
	
	Packet p = buildIpV4(srcAddress_mac,dstAddrress_mac,builder_ipv4);
	//System.out.println("自定义确认 "+" identification "+identification+" ack_sequence "+ack_sequence+" # "+tcpPacket.getHeader());
	return p;

}

Example 5

Source File: PacketUtils.java From finalspeed-91yun with GNU General Public License v2.0

4 votes

static Packet createSyncAck(
		MacAddress srcAddress_mac,
		MacAddress dstAddrress_mac,
		Inet4Address srcAddress,short srcPort,
		Inet4Address dstAddress,short dstPort,
		int ack_sequence,int sequence,short ident){

	TcpPacket.Builder builder_tcp=new TcpPacket.Builder();
	//builder_tcp.payloadBuilder(new UnknownPacket.Builder().rawData(new byte[0]));
	builder_tcp.correctChecksumAtBuild(true);
	builder_tcp.correctLengthAtBuild(true);
	builder_tcp.paddingAtBuild(true);
	builder_tcp.ack(true);
	builder_tcp.acknowledgmentNumber(ack_sequence);
	//builder_tcp.checksum(tcpHeader.getChecksum());
	//builder_tcp.dataOffset((byte) 8);
	builder_tcp.dstAddr(dstAddress);
	builder_tcp.dstPort(new TcpPort(dstPort,""));
	//builder_tcp.fin(tcpHeader.getFin());


	ArrayList<TcpOption> tcp_options=new ArrayList<TcpOption>();
	
	TcpNoOperationOption nop=TcpNoOperationOption.getInstance();

	TcpMaximumSegmentSizeOption seg_option=new TcpMaximumSegmentSizeOption.Builder().maxSegSize(mtu).correctLengthAtBuild(true).build();
	tcp_options.add(seg_option);
	
	tcp_options.add(nop);
	tcp_options.add(nop);

	TcpSackPermittedOption sack_permit_option=TcpSackPermittedOption.getInstance();
	tcp_options.add(sack_permit_option);
	
	tcp_options.add(nop);

	TcpWindowScaleOption win_option=new TcpWindowScaleOption.Builder().shiftCount(shiftCount).correctLengthAtBuild(true).build();
	tcp_options.add(win_option);

	builder_tcp.options(tcp_options);

	//builder_tcp.padding(tcpHeader.getPadding());
	builder_tcp.psh(false);
	builder_tcp.reserved((byte) 0);
	builder_tcp.rst(false);
	builder_tcp.sequenceNumber(sequence);
	builder_tcp.srcAddr(srcAddress);
	builder_tcp.srcPort(new TcpPort(srcPort,""));
	builder_tcp.syn(true);
	builder_tcp.urg(false);
	//builder_tcp.urgentPointer(tcpHeader.getUrgentPointer());
	builder_tcp.window( window);

	IpV4Packet.Builder builder_ipv4=new IpV4Packet.Builder();
	builder_ipv4.correctChecksumAtBuild(true);
	builder_ipv4.correctLengthAtBuild(true);
	builder_ipv4.paddingAtBuild(true);
	builder_ipv4.dstAddr(dstAddress);
	builder_ipv4.dontFragmentFlag(true);
	builder_ipv4.fragmentOffset((short)0);
	//builder_ipv4.headerChecksum(ipV4Header.getHeaderChecksum());
//	short identification= Math.abs(random.nextInt(Short.MAX_VALUE));
	builder_ipv4.identification(ident);
	builder_ipv4.ihl((byte) 5);
	//builder_ipv4.moreFragmentFlag(ipV4Header.getMoreFragmentFlag());
	//builder_ipv4.options(ipV4Header.getOptions());
	//builder_ipv4.padding(ipV4Header.getPadding());

	builder_ipv4.protocol(IpNumber.TCP);
	//		builder_ipv4.reservedFlag(ipV4Header.getReservedFlag());
	builder_ipv4.srcAddr(srcAddress);
	builder_ipv4.tos(IpV4Rfc1349Tos.newInstance((byte) 0));
	//builder_ipv4.totalLength( 52);
	builder_ipv4.ttl(ttl);
	builder_ipv4.version(IpVersion.IPV4);
	builder_ipv4.payloadBuilder(builder_tcp);
	//
	Packet p = buildIpV4(srcAddress_mac,dstAddrress_mac,builder_ipv4);
	//System.out.println("自定义确认 "+" identification "+identification+" ack_sequence "+ack_sequence+" # "+tcpPacket.getHeader());
	return p;

}

Example 6

Source File: PacketUtils.java From finalspeed-91yun with GNU General Public License v2.0

4 votes

static Packet createSync(
			MacAddress srcAddress_mac,
			MacAddress dstAddrress_mac,
			Inet4Address srcAddress,short srcPort,
			Inet4Address dstAddress,short dstPort,
			int sequence,short ident){
		TcpPacket.Builder builder_tcp=new TcpPacket.Builder();
		//builder_tcp.payloadBuilder(new UnknownPacket.Builder().rawData(new byte[0]));
		builder_tcp.correctChecksumAtBuild(true);
		builder_tcp.correctLengthAtBuild(true);
		builder_tcp.paddingAtBuild(true);
		//builder_tcp.ack(true);
		//builder_tcp.acknowledgmentNumber(ack_sequence);
		//builder_tcp.checksum(tcpHeader.getChecksum());
		//builder_tcp.dataOffset((byte) 8);
		builder_tcp.dstAddr(dstAddress);
		builder_tcp.dstPort(new TcpPort( dstPort,""));
		//builder_tcp.fin(tcpHeader.getFin());
		
		TcpNoOperationOption nop=TcpNoOperationOption.getInstance();
		
		ArrayList<TcpOption> tcp_options=new ArrayList<TcpOption>();
		
		TcpMaximumSegmentSizeOption seg_option=new TcpMaximumSegmentSizeOption.Builder().maxSegSize(mtu).correctLengthAtBuild(true).build();
		tcp_options.add(seg_option);

		tcp_options.add(nop);

		TcpWindowScaleOption win_option=new TcpWindowScaleOption.Builder().shiftCount((byte)6).correctLengthAtBuild(true).build();
		tcp_options.add(win_option);

		tcp_options.add(nop);
		tcp_options.add(nop);
		
		TcpSackPermittedOption sack_permit_option=TcpSackPermittedOption.getInstance();
		tcp_options.add(sack_permit_option);
		
		builder_tcp.options(tcp_options);
		
		//builder_tcp.padding(tcpHeader.getPadding());
		builder_tcp.psh(false);
		builder_tcp.reserved((byte) 0);
		builder_tcp.rst(false);
		builder_tcp.sequenceNumber(sequence);
		builder_tcp.srcAddr(srcAddress);
		builder_tcp.srcPort(new TcpPort( srcPort,""));
		builder_tcp.syn(true);
		builder_tcp.urg(false);
		//builder_tcp.urgentPointer(tcpHeader.getUrgentPointer());
		builder_tcp.window( window);

		IpV4Packet.Builder builder_ipv4=new IpV4Packet.Builder();
		builder_ipv4.correctChecksumAtBuild(true);
		builder_ipv4.correctLengthAtBuild(true);
		builder_ipv4.paddingAtBuild(true);
		builder_ipv4.dstAddr(dstAddress);
		builder_ipv4.dontFragmentFlag(true);
		builder_ipv4.fragmentOffset((short)0);
		//builder_ipv4.headerChecksum(ipV4Header.getHeaderChecksum());
		//short identification= Math.abs(random.nextInt(Short.MAX_VALUE));
		builder_ipv4.identification(ident);
		builder_ipv4.ihl((byte) 5);
		//builder_ipv4.moreFragmentFlag(ipV4Header.getMoreFragmentFlag());
		//builder_ipv4.options(ipV4Header.getOptions());
		//builder_ipv4.padding(ipV4Header.getPadding());
		
		builder_ipv4.protocol(IpNumber.TCP);
//		builder_ipv4.reservedFlag(ipV4Header.getReservedFlag());
		builder_ipv4.srcAddr(srcAddress);
		builder_ipv4.tos(IpV4Rfc1349Tos.newInstance((byte) 0));
		//builder_ipv4.totalLength( 52);
		builder_ipv4.ttl(ttl);
		builder_ipv4.version(IpVersion.IPV4);
		builder_ipv4.payloadBuilder(builder_tcp);
//
		Packet p = buildIpV4(srcAddress_mac,dstAddrress_mac,builder_ipv4);
//		IpV4Packet p4=builder_ipv4.build();
//		TcpPacket tcpPacket=builder_tcp.build();
		//selfAckTable.add(identification);
		//System.out.println("自定义确认 "+" identification "+identification+" ack_sequence "+ack_sequence+" # "+tcpPacket.getHeader());
		return p;

	}

Example 7

Source File: TrexTcpPacket.java From trex-stateless-gui with Apache License 2.0

2 votes

/**
 *
 * @return
 */
public TcpPacket.Builder getBuilder() {
    return tcpBuilder;
}

Example 8

Source File: TrexTcpPacket.java From trex-stateless-gui with Apache License 2.0

2 votes

/**
 *
 * @return
 */
public TcpPacket.Builder getTcpBuilder() {
    return tcpBuilder;
}