private void printResult(Buffer b) {
int capa = b.readableBytes();
byte[] t = new byte[capa];
b.gets(t);
System.out.println();
for (byte t1 : t) {
System.out.printf("%d:", t1);
}
}
@Override
public SmbData parseRequest(SmbHeader h, Buffer b, SmbSession session) {
WritePrintFileRequest data = new WritePrintFileRequest();
byte[] buff;
data.setWordCount(b.get());
data.setFid(ByteOrderConverter.swap(b.getShort()));
data.setByteCount(ByteOrderConverter.swap(b.getShort()));
if (b.readableBytes() != data.getByteCount()) {
data.setMalformed(true);
return data;
}
data.setBufferFormat(b.get());
data.setDataLength(ByteOrderConverter.swap(b.getShort()));
buff = new byte[data.getDataLength()];
b.gets(buff);
data.setData(buff);
return data;
}
@Override
public TcpPacket build() {
// resolve all values
if (dstIp == null) throw new IllegalStateException("destination ip not found");
if (srcIp == null) {
PcapDeviceMetadata metadata = PcapDeviceManager.getDeviceMetadata(dstIp);
if (metadata == null)
throw new IllegalArgumentException(
"route not found for destination " + dstIp.getHostAddress());
srcIp = metadata.getInet4Address();
}
if (srcPort == null) srcPort = 40000;
if (dstPort == null) throw new IllegalStateException("destination port not found");
// set
TcpPacket p = new TcpPacket();
p.sourceAddr = srcIp;
p.destinationAddr = dstIp;
p.srcPort = srcPort;
p.dstPort = dstPort;
p.seq = seq;
p.ack = ack;
p.dataOffset = 5; // default header size 20 (5 * 4)
p.flags = flags;
p.window = window;
p.data = data;
if (data != null) p.dataLength = data.readableBytes();
p.tcpLength = (p.dataOffset * 4) + p.dataLength;
p.checksum = TcpChecksum.sum(p);
return p;
}
