org.pcap4j.packet.TcpPacket Java Examples
The following examples show how to use
org.pcap4j.packet.TcpPacket.
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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: TCPTun.java From NSS with Apache License 2.0 | 6 votes |
|
void onReceiveDataPacket(TcpPacket tcpPacket, TcpHeader tcpHeader, IpV4Header ipV4Header ){
if(System.currentTimeMillis()-lastSendAckTime>1000){
int rs=tcpHeader.getSequenceNumber()+tcpPacket.getPayload().getRawData().length;
if(rs>remoteSequence_max){
remoteSequence_max=rs;
}
Packet ackPacket=PacketUtils.createAck(
capEnv.local_mac,
capEnv.gateway_mac,
localAddress,(short)localPort,
ipV4Header.getSrcAddr(),tcpHeader.getSrcPort().value(),
remoteSequence_max, localSequence,getIdent());
try {
sendHandle.sendPacket(ackPacket);
} catch (Exception e) {
e.printStackTrace();
}
lastSendAckTime=System.currentTimeMillis();
lastReceiveDataTime=System.currentTimeMillis();
}
}
Example #3
| Source File: TCPTun.java From finalspeed with GNU General Public License v2.0 | 6 votes |
|
void onReceiveDataPacket(TcpPacket tcpPacket, TcpHeader tcpHeader, IpV4Header ipV4Header) {
if (System.currentTimeMillis() - lastSendAckTime > 1000) {
int rs = tcpHeader.getSequenceNumber() + tcpPacket.getPayload().getRawData().length;
if (rs > remoteSequence_max) {
remoteSequence_max = rs;
}
Packet ackPacket = PacketUtils.createAck(
capEnv.local_mac,
capEnv.gateway_mac,
localAddress, localPort,
ipV4Header.getSrcAddr(), tcpHeader.getSrcPort().value(),
remoteSequence_max, localSequence, getIdent());
try {
sendHandle.sendPacket(ackPacket);
} catch (Exception e) {
e.printStackTrace();
}
lastSendAckTime = System.currentTimeMillis();
lastReceiveDataTime = System.currentTimeMillis();
}
}
Example #4
| Source File: TCPTun.java From finalspeed-91yun with GNU General Public License v2.0 | 6 votes |
|
void onReceiveDataPacket(TcpPacket tcpPacket,TcpHeader tcpHeader,IpV4Header ipV4Header ){
if(System.currentTimeMillis()-lastSendAckTime>1000){
int rs=tcpHeader.getSequenceNumber()+tcpPacket.getPayload().getRawData().length;
if(rs>remoteSequence_max){
remoteSequence_max=rs;
}
Packet ackPacket=PacketUtils.createAck(
capEnv.local_mac,
capEnv.gateway_mac,
localAddress,(short)localPort,
ipV4Header.getSrcAddr(),tcpHeader.getSrcPort().value(),
remoteSequence_max, localSequence,getIdent());
try {
sendHandle.sendPacket(ackPacket);
} catch (Exception e) {
e.printStackTrace();
}
lastSendAckTime=System.currentTimeMillis();
lastReceiveDataTime=System.currentTimeMillis();
}
}
Example #5
| Source File: PacketUpdater.java From trex-stateless-gui with Apache License 2.0 | 5 votes |
|
/**
* Return source port
*
* @param packet
* @return
*/
private String getSrcPort(Packet packet) {
if (protocolType.equals("TCP")) {
return packet.get(TcpPacket.class).getHeader().getSrcPort().toString();
} else if (protocolType.equals("UDP")) {
return packet.get(UdpPacket.class).getHeader().getSrcPort().toString();
}
return "80";
}
Example #6
| Source File: PacketUpdater.java From trex-stateless-gui with Apache License 2.0 | 5 votes |
|
/**
* Return destination port
*
* @param packet
* @return
*/
private String getDstPort(Packet packet) {
if (protocolType.equals("TCP")) {
return packet.get(TcpPacket.class).getHeader().getDstPort().toString();
} else if (protocolType.equals("UDP")) {
return packet.get(UdpPacket.class).getHeader().getDstPort().toString();
}
return "80";
}
Example #7
| Source File: PacketParser.java From trex-stateless-gui with Apache License 2.0 | 4 votes |
|
/**
* Extract packet info
*
* @param packet
* @return
*/
private PacketInfo extractPacketInfo(Packet packet) {
if (packet != null) {
packetInfo.setPacketHex(formatHex(DatatypeConverter.printHexBinary(packet.getRawData())));
packetInfo.setPacketRawData(formatPayLoad(new String(packet.getRawData())));
}
// defien whether packet has vlan or not
if(packet.get(Dot1qVlanTagPacket.class) != null){
packetInfo.setVlanPacket(true);
}
// If the packet has Ethernet
if (packet.get(EthernetPacket.class) != null) {
packetInfo.setEthernetHex(getHeaderOffset(packet.get(EthernetPacket.class).getHeader().toHexString().toUpperCase()));
packetInfo.setEthernetRawData(new String());
packetInfo.setDestMac(packet.get(EthernetPacket.class).getHeader().getDstAddr().toString());
packetInfo.setSrcMac(packet.get(EthernetPacket.class).getHeader().getSrcAddr().toString());
}
// if the packet has IPV4
if (packet.get(IpV4Packet.class) != null) {
packetInfo.setIpv4Hex(getHeaderOffset(packet.get(IpV4Packet.class).getHeader().toHexString().toUpperCase()));
packetInfo.setIpv4RawData(new String());
packetInfo.setDestIpv4(packet.get(IpV4Packet.class).getHeader().getDstAddr().getHostAddress());
packetInfo.setSrcIpv4(packet.get(IpV4Packet.class).getHeader().getSrcAddr().getHostAddress());
}
// if the packet has TCP
if (packet.get(TcpPacket.class) != null) {
packetInfo.setL4Name("TCP");
packetInfo.setL4Hex(getHeaderOffset(packet.get(TcpPacket.class).getHeader().toHexString().toUpperCase()));
packetInfo.setL4RawData(new String());
if (packet.get(TcpPacket.class).getPayload() != null) {
packetInfo.setPacketPayLoad(getHeaderOffset(spaceHex(Hex.encodeHexString(packet.get(TcpPacket.class).getPayload().getRawData()))));
} else {
packetInfo.setPacketPayLoad(null);
}
}
// if the packet has UDP
if (packet.get(UdpPacket.class) != null) {
packetInfo.setL4Name("UDP");
packetInfo.setL4Hex(getHeaderOffset(packet.get(UdpPacket.class).getHeader().toHexString().toUpperCase()));
packetInfo.setL4RawData(new String());
if (packet.get(UdpPacket.class).getPayload() != null) {
packetInfo.setPacketPayLoad(getHeaderOffset(spaceHex(Hex.encodeHexString(packet.get(UdpPacket.class).getPayload().getRawData()))));
} else {
packetInfo.setPacketPayLoad(null);
}
}
return packetInfo;
}
Example #8
| Source File: TCPTun.java From finalspeed-91yun with GNU General Public License v2.0 | 4 votes |
|
public void process_server(final Packet packet,EthernetHeader ethernetHeader,IpV4Header ipV4Header,TcpPacket tcpPacket,boolean client){
TcpHeader tcpHeader=tcpPacket.getHeader();
if(!preDataReady){
if(!connectReady){
//第一次握手
dstMacaAddress=ethernetHeader.getSrcAddr();
if(tcpHeader.getSyn()&&!tcpHeader.getAck()){
remoteStartSequence=tcpHeader.getSequenceNumber();
remoteSequence=remoteStartSequence+1;
remoteSequence_max=remoteSequence;
MLog.println("接收第一次握手 "+remoteAddress.getHostAddress()+":"+remotePort+"->"+localAddress.getHostAddress()+":"+localPort+" ident "+ipV4Header.getIdentification());
MLog.println(""+packet);
Packet responePacket=PacketUtils.createSyncAck(
capEnv.local_mac,
capEnv.gateway_mac,
localAddress,(short)localPort,
ipV4Header.getSrcAddr(),tcpHeader.getSrcPort().value(),
tcpHeader.getSequenceNumber()+1,localStartSequence,(short)0
);
try {
sendHandle.sendPacket(responePacket);
} catch (Exception e) {
e.printStackTrace();
}
localSequence=localStartSequence+1;
MLog.println("发送第二次握手 "+capEnv.local_mac+"->"+capEnv.gateway_mac+" "+localAddress+"->"+" ident "+0);
MLog.println(""+responePacket);
}
if(!tcpHeader.getSyn()&&tcpHeader.getAck()){
if(tcpPacket.getPayload()==null){
//第三次握手,客户端确认
if(tcpHeader.getAcknowledgmentNumber()==localSequence){
MLog.println("接收第三次握手 "+" ident "+ipV4Header.getIdentification());
MLog.println(packet+"");
Thread t1=new Thread(){
public void run(){
//startSend(basePacket_server,syc_sequence_client+1);
}
};
//t1.start();
connectReady=true;
}
}
//MLog.println("客户端响应preview\n "+packet);
//MLog.println("request "+tcp.ack());
sendedTable_server.remove(tcpHeader.getAcknowledgmentNumber());
boolean selfAck=selfAckTable.contains(ipV4Header.getIdentification());
//MLog.println("客户端确认 "+"selfack "+selfAck+" id "+ipV4Header.getIdentification()+" ack_sequence "+tcpHeader.getAcknowledgmentNumberAsLong()+" "+sendedTable_server.size()+"ppppppp "+tcpHeader);
}
}else {
if(tcpPacket.getPayload()!=null){
preDataReady=true;
onReceiveDataPacket( tcpPacket, tcpHeader, ipV4Header );
byte[] sim=getSimResponeHead();
sendData(sim);
}
}
}else {
if(tcpPacket.getPayload()!=null){
onReceiveDataPacket( tcpPacket, tcpHeader, ipV4Header );
TunData td=new TunData();
td.tun=this;
td.data=tcpPacket.getPayload().getRawData();
capEnv.vDatagramSocket.onReceinveFromTun(td);
}
}
if(tcpHeader.getRst()){
MLog.println("reset packet "+ipV4Header.getIdentification()+" "+tcpHeader.getSequenceNumber()+" "+remoteAddress.getHostAddress()+":"+remotePort+"->"+localAddress.getHostAddress()+":"+localPort+" "+" ident "+ipV4Header.getIdentification());
}
}
Example #9
| 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 #10
| 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 #11
| 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 #12
| 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 #13
| 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 #14
| Source File: TCPTun.java From finalspeed with GNU General Public License v2.0 | 4 votes |
|
public void process_server(final Packet packet, EthernetHeader ethernetHeader, IpV4Header ipV4Header, TcpPacket
tcpPacket, boolean client) {
TcpHeader tcpHeader = tcpPacket.getHeader();
if (!preDataReady) {
if (!connectReady) {
//第一次握手
dstMacaAddress = ethernetHeader.getSrcAddr();
if (tcpHeader.getSyn() && !tcpHeader.getAck()) {
remoteStartSequence = tcpHeader.getSequenceNumber();
remoteSequence = remoteStartSequence + 1;
remoteSequence_max = remoteSequence;
MLog.println("接收第一次握手 " + remoteAddress.getHostAddress() + ":" + remotePort + "->" + localAddress
.getHostAddress() + ":" + localPort + " ident " + ipV4Header.getIdentification());
MLog.println("" + packet);
Packet responePacket = PacketUtils.createSyncAck(
capEnv.local_mac,
capEnv.gateway_mac,
localAddress, localPort,
ipV4Header.getSrcAddr(), tcpHeader.getSrcPort().value(),
tcpHeader.getSequenceNumber() + 1, localStartSequence, (short) 0
);
try {
sendHandle.sendPacket(responePacket);
} catch (Exception e) {
e.printStackTrace();
}
localSequence = localStartSequence + 1;
MLog.println("发送第二次握手 " + capEnv.local_mac + "->" + capEnv.gateway_mac + " " + localAddress +
"->" + " ident " + 0);
MLog.println("" + responePacket);
}
if (!tcpHeader.getSyn() && tcpHeader.getAck()) {
if (tcpPacket.getPayload() == null) {
//第三次握手,客户端确认
if (tcpHeader.getAcknowledgmentNumber() == localSequence) {
MLog.println("接收第三次握手 " + " ident " + ipV4Header.getIdentification());
MLog.println(packet + "");
Thread t1 = new Thread() {
public void run() {
//startSend(basePacket_server,syc_sequence_client+1);
}
};
//t1.start();
connectReady = true;
}
}
//MLog.println("客户端响应preview\n "+packet);
//MLog.println("request "+tcp.ack());
sendedTable_server.remove(tcpHeader.getAcknowledgmentNumber());
boolean selfAck = selfAckTable.contains(ipV4Header.getIdentification());
//MLog.println("客户端确认 "+"selfack "+selfAck+" id "+ipV4Header.getIdentification()+" ack_sequence
// "+tcpHeader.getAcknowledgmentNumberAsLong()+" "+sendedTable_server.size()+"ppppppp "+tcpHeader);
}
} else {
if (tcpPacket.getPayload() != null) {
preDataReady = true;
onReceiveDataPacket(tcpPacket, tcpHeader, ipV4Header);
byte[] sim = getSimResponeHead();
sendData(sim);
}
}
} else {
if (tcpPacket.getPayload() != null) {
onReceiveDataPacket(tcpPacket, tcpHeader, ipV4Header);
TunData td = new TunData();
td.tun = this;
td.data = tcpPacket.getPayload().getRawData();
capEnv.vDatagramSocket.onReceinveFromTun(td);
}
}
if (tcpHeader.getRst()) {
MLog.println("reset packet " + ipV4Header.getIdentification() + " " + tcpHeader.getSequenceNumber() + " "
+ remoteAddress.getHostAddress() + ":" + remotePort + "->" + localAddress.getHostAddress() + ":" +
localPort + " " + " ident " + ipV4Header.getIdentification());
}
}
Example #15
| Source File: TCPTun.java From finalspeed with GNU General Public License v2.0 | 4 votes |
|
public void process_client(CapEnv capEnv, final Packet packet, EthernetHeader ethernetHeader, IpV4Header
ipV4Header, TcpPacket tcpPacket, boolean client) {
TcpHeader tcpHeader = tcpPacket.getHeader();
if (!preDataReady) {
if (!connectReady) {
if (tcpHeader.getAck() && tcpHeader.getSyn()) {
if (tcpHeader.getAcknowledgmentNumber() == (localStartSequence + 1)) {
MLog.println("接收第二次握手 " + " ident " + ipV4Header.getIdentification());
MLog.println("" + packet);
remoteStartSequence = tcpHeader.getSequenceNumber();
remoteSequence = remoteStartSequence + 1;
remoteSequence_max = remoteSequence;
Packet p3 = PacketUtils.createAck(capEnv.local_mac, capEnv.gateway_mac, capEnv.local_ipv4,
localPort, remoteAddress, remotePort, remoteSequence, localSequence, getIdent());
try {
sendHandle.sendPacket(p3);
MLog.println("发送第三次握手 " + " ident " + localIdent);
MLog.println("" + p3);
connectReady = true;
byte[] sim = getSimRequestHead(remotePort);
sendData(sim);
MLog.println("发送请求 " + " ident " + localIdent);
} catch (PcapNativeException | NotOpenException e) {
e.printStackTrace();
}
}
}
} else {
if (tcpPacket.getPayload() != null) {
preDataReady = true;
onReceiveDataPacket(tcpPacket, tcpHeader, ipV4Header);
MLog.println("接收响应 " + " ident " + ipV4Header.getIdentification());
}
}
} else {
if (tcpPacket.getPayload() != null) {
//MLog.println("客户端正式接收数据 "+capClientEnv.vDatagramSocket);
onReceiveDataPacket(tcpPacket, tcpHeader, ipV4Header);
TunData td = new TunData();
td.tun = this;
td.data = tcpPacket.getPayload().getRawData();
capEnv.vDatagramSocket.
onReceinveFromTun(td);
}
}
if (tcpHeader.getRst()) {
MLog.println("reset packet " + ipV4Header.getIdentification() + " " + tcpHeader.getSequenceNumber() + " "
+ remoteAddress.getHostAddress() + ":" + remotePort + "->" + localAddress.getHostAddress() + ":" +
localPort);
}
}
Example #16
| Source File: TCPTun.java From NSS with Apache License 2.0 | 4 votes |
|
public void process_server(final Packet packet, EthernetHeader ethernetHeader, IpV4Header ipV4Header, TcpPacket tcpPacket, boolean client){
TcpHeader tcpHeader=tcpPacket.getHeader();
if(!preDataReady){
if(!connectReady){
//第一次握手
dstMacaAddress=ethernetHeader.getSrcAddr();
if(tcpHeader.getSyn()&&!tcpHeader.getAck()){
remoteStartSequence=tcpHeader.getSequenceNumber();
remoteSequence=remoteStartSequence+1;
remoteSequence_max=remoteSequence;
MLog.println("接收第一次握手 "+remoteAddress.getHostAddress()+":"+remotePort+"->"+localAddress.getHostAddress()+":"+localPort+" ident "+ipV4Header.getIdentification());
MLog.println(""+packet);
Packet responePacket=PacketUtils.createSyncAck(
capEnv.local_mac,
capEnv.gateway_mac,
localAddress,(short)localPort,
ipV4Header.getSrcAddr(),tcpHeader.getSrcPort().value(),
tcpHeader.getSequenceNumber()+1,localStartSequence,(short)0
);
try {
sendHandle.sendPacket(responePacket);
} catch (Exception e) {
e.printStackTrace();
}
localSequence=localStartSequence+1;
MLog.println("发送第二次握手 "+capEnv.local_mac+"->"+capEnv.gateway_mac+" "+localAddress+"->"+" ident "+0);
MLog.println(""+responePacket);
}
if(!tcpHeader.getSyn()&&tcpHeader.getAck()){
if(tcpPacket.getPayload()==null){
//第三次握手,客户端确认
if(tcpHeader.getAcknowledgmentNumber()==localSequence){
MLog.println("接收第三次握手 "+" ident "+ipV4Header.getIdentification());
MLog.println(packet+"");
Thread t1=new Thread(){
public void run(){
//startSend(basePacket_server,syc_sequence_client+1);
}
};
//t1.start();
connectReady=true;
}
}
//MLog.println("客户端响应preview\n "+packet);
//MLog.println("request "+tcp.ack());
sendedTable_server.remove(tcpHeader.getAcknowledgmentNumber());
boolean selfAck=selfAckTable.contains(ipV4Header.getIdentification());
//MLog.println("客户端确认 "+"selfack "+selfAck+" id "+ipV4Header.getIdentification()+" ack_sequence "+tcpHeader.getAcknowledgmentNumberAsLong()+" "+sendedTable_server.size()+"ppppppp "+tcpHeader);
}
}else {
if(tcpPacket.getPayload()!=null){
preDataReady=true;
onReceiveDataPacket( tcpPacket, tcpHeader, ipV4Header );
byte[] sim=getSimResponeHead();
sendData(sim);
}
}
}else {
if(tcpPacket.getPayload()!=null){
onReceiveDataPacket( tcpPacket, tcpHeader, ipV4Header );
TunData td=new TunData();
td.tun=this;
td.data=tcpPacket.getPayload().getRawData();
capEnv.vDatagramSocket.onReceinveFromTun(td);
}
}
if(tcpHeader.getRst()){
MLog.println("reset packet "+ipV4Header.getIdentification()+" "+tcpHeader.getSequenceNumber()+" "+remoteAddress.getHostAddress()+":"+remotePort+"->"+localAddress.getHostAddress()+":"+localPort+" "+" ident "+ipV4Header.getIdentification());
}
}
Example #17
| Source File: TrexTcpPacket.java From trex-stateless-gui with Apache License 2.0 | 2 votes |
|
/**
*
* @return
*/
public TcpPacket.Builder getTcpBuilder() {
return tcpBuilder;
}
Example #18
| Source File: TrexTcpPacket.java From trex-stateless-gui with Apache License 2.0 | 2 votes |
|
/**
*
* @return
*/
public TcpPacket.Builder getBuilder() {
return tcpBuilder;
}
