MplsLayer.h

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#ifndef PACKETPP_MPLS_LAYER
#define PACKETPP_MPLS_LAYER

#include "Layer.h"


namespace pcpp
{

    class MplsLayer : public Layer
    {
    private:

        #pragma pack(push, 1)
        struct mpls_header
        {
            uint16_t hiLabel;
            uint8_t  misc;
            uint8_t  ttl;
        };
        #pragma pack(pop)

        mpls_header* getMplsHeader() const { return (mpls_header*)m_Data; }

    public:
        MplsLayer(uint8_t* data, size_t dataLen, Layer* prevLayer, Packet* packet) : Layer(data, dataLen, prevLayer, packet) { m_Protocol = MPLS; }

        MplsLayer(uint32_t mplsLabel, uint8_t ttl, uint8_t experimentalUseValue, bool bottomOfStack);

        virtual ~MplsLayer() {}

        uint8_t getTTL() const { return getMplsHeader()->ttl; }

        void setTTL(uint8_t ttl) { getMplsHeader()->ttl = ttl; }

        bool isBottomOfStack() const;

        void setBottomOfStack(bool val);

        uint8_t getExperimentalUseValue() const;

        bool setExperimentalUseValue(uint8_t val);

        uint32_t getMplsLabel() const;

        bool setMplsLabel(uint32_t label);

        // implement abstract methods

        void parseNextLayer();

        size_t getHeaderLen() const { return sizeof(mpls_header); }

        void computeCalculateFields();

        std::string toString() const;

        OsiModelLayer getOsiModelLayer() const { return OsiModelNetworkLayer; }
    };

} // namespace pcpp

#endif /* PACKETPP_MPLS_LAYER */