TransportLayerElement.h

/***************************************************************************
 * TransportLayerElement.cc -- Class TransportLayerElement is a generic    *
 * class that represents a transport layer protocol header. Classes like   *
 * TCPHeader or UDPHeader inherit from it.                                 *
 *                                                                         *
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 ***************************************************************************/
/* This code was originally part of the Nping tool.                        */

#ifndef TRANSPORTLAYERELEMENT_H
#define TRANSPORTLAYERELEMENT_H  1

#include "PacketElement.h"

/// class TransportLayerElement -
class TransportLayerElement : public PacketElement {

  public:

    /* Returns source port. */
    virtual u16 getSourcePort() const = 0;

    /* Sets source port. */
    virtual int setSourcePort(u16 val) = 0;

    /* Returns destination port. */
    virtual u16 getDestinationPort() const = 0;

    /* Sets destination port. */
    virtual int setDestinationPort(u16 val) = 0;

    /* Sets checksum. */
    virtual int setSum(u16 val) = 0;

  protected:
    u16 compute_checksum();
};

#endif