UdpLayer.h

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#ifndef PACKETPP_UDP_LAYER
#define PACKETPP_UDP_LAYER
 
#include "Layer.h"
 
 
namespace pcpp
{
 
#pragma pack(push,1)
    struct udphdr {
        uint16_t portSrc;
        uint16_t portDst;
        uint16_t length;
        uint16_t headerChecksum;
    };
#pragma pack(pop)
 
 
    class UdpLayer : public Layer
    {
    public:
        UdpLayer(uint8_t* data, size_t dataLen, Layer* prevLayer, Packet* packet) : Layer(data, dataLen, prevLayer, packet) { m_Protocol = UDP; }
 
        UdpLayer(uint16_t portSrc, uint16_t portDst);
 
        udphdr* getUdpHeader() const { return (udphdr*)m_Data; }
 
        uint16_t calculateChecksum(bool writeResultToPacket);
 
        // implement abstract methods
 
        void parseNextLayer();
 
        size_t getHeaderLen() const { return sizeof(udphdr); }
 
        void computeCalculateFields();
 
        std::string toString() const;
 
        OsiModelLayer getOsiModelLayer() const { return OsiModelTransportLayer; }
    };
 
} // namespace pcpp
 
#endif /* PACKETPP_UDP_LAYER */