inet::UdpProtocolDissector Class Reference

#include <UdpProtocolDissector.h>

Inheritance diagram for inet::UdpProtocolDissector:

Public Member Functions
virtual void	dissect (Packet *packet, const Protocol *protocol, ICallback &callback) const override
	Dissects the packet according to the protocol implemented by this ProtocolDissector. More...

Member Function Documentation

dissect()

void inet::UdpProtocolDissector::dissect ( Packet *  packet, const Protocol *  protocol, ICallback &  callback  ) const

overridevirtual

Dissects the packet according to the protocol implemented by this ProtocolDissector.

Implements inet::ProtocolDissector.

{
    auto originalTrailerPopOffset = packet->getBackOffset();
    auto udpHeaderOffset = packet->getFrontOffset();
    auto header = packet->popAtFront<UdpHeader>();
    callback.startProtocolDataUnit(&Protocol::udp);
    bool isCorrectPacket = Udp::isCorrectPacket(packet, header);
    if (!isCorrectPacket)
        callback.markIncorrect();
    callback.visitChunk(header, &Protocol::udp);
    auto udpPayloadEndOffset = udpHeaderOffset + B(header->getTotalLengthField());
    packet->setBackOffset(udpPayloadEndOffset);
    auto dataProtocol = ProtocolGroup::udpprotocol.findProtocol(header->getDestPort());
    if (dataProtocol == nullptr)
        dataProtocol = ProtocolGroup::udpprotocol.findProtocol(header->getSrcPort());
    callback.dissectPacket(packet, dataProtocol);
    ASSERT(packet->getDataLength() == B(0));
    packet->setFrontOffset(udpPayloadEndOffset);
    packet->setBackOffset(originalTrailerPopOffset);
    callback.endProtocolDataUnit(&Protocol::udp);
}

---

The documentation for this class was generated from the following files:

• UdpProtocolDissector.h
• UdpProtocolDissector.cc