private void _read()
{
_b1 = m_io.ReadU1();
_b2 = m_io.ReadU1();
_totalLength = m_io.ReadU2be();
_identification = m_io.ReadU2be();
_b67 = m_io.ReadU2be();
_ttl = m_io.ReadU1();
_protocol = ((ProtocolEnum)m_io.ReadU1());
_headerChecksum = m_io.ReadU2be();
_srcIpAddr = m_io.ReadBytes(4);
_dstIpAddr = m_io.ReadBytes(4);
__raw_options = m_io.ReadBytes((IhlBytes - 20));
var io___raw_options = new KaitaiStream(__raw_options);
_options = new Ipv4Options(io___raw_options, this, m_root);
switch (Protocol)
{
case ProtocolEnum.Tcp:
{
__raw_body = m_io.ReadBytes((TotalLength - IhlBytes));
var io___raw_body = new KaitaiStream(__raw_body);
_body = new TcpSegment(io___raw_body);
break;
}
case ProtocolEnum.Icmp:
{
__raw_body = m_io.ReadBytes((TotalLength - IhlBytes));
var io___raw_body = new KaitaiStream(__raw_body);
_body = new IcmpPacket(io___raw_body);
break;
}
case ProtocolEnum.Udp:
{
__raw_body = m_io.ReadBytes((TotalLength - IhlBytes));
var io___raw_body = new KaitaiStream(__raw_body);
_body = new UdpDatagram(io___raw_body);
break;
}
case ProtocolEnum.Ipv6:
{
__raw_body = m_io.ReadBytes((TotalLength - IhlBytes));
var io___raw_body = new KaitaiStream(__raw_body);
_body = new Ipv6Packet(io___raw_body);
break;
}
default:
{
_body = m_io.ReadBytes((TotalLength - IhlBytes));
break;
}
}
}
private void _read()
{
_version = m_io.ReadBitsInt(4);
_trafficClass = m_io.ReadBitsInt(8);
_flowLabel = m_io.ReadBitsInt(20);
m_io.AlignToByte();
_payloadLength = m_io.ReadU2be();
_nextHeaderType = m_io.ReadU1();
_hopLimit = m_io.ReadU1();
_srcIpv6Addr = m_io.ReadBytes(16);
_dstIpv6Addr = m_io.ReadBytes(16);
switch (NextHeaderType)
{
case 17:
{
_nextHeader = new UdpDatagram(m_io);
break;
}
case 0:
{
_nextHeader = new OptionHopByHop(m_io, this, m_root);
break;
}
case 4:
{
_nextHeader = new Ipv4Packet(m_io);
break;
}
case 6:
{
_nextHeader = new TcpSegment(m_io);
break;
}
case 59:
{
_nextHeader = new NoNextHeader(m_io, this, m_root);
break;
}
}
_rest = m_io.ReadBytesFull();
}
public UdpDatagram(KaitaiStream p__io, KaitaiStruct p__parent = null, UdpDatagram p__root = null) : base(p__io)
{
m_parent = p__parent;
m_root = p__root ?? this;
_read();
}