MFC_ChattingProgram/CEthernetLayer.h at main · dozzzang/MFC_ChattingProgram · GitHub

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// EthernetLayer.h: interface for the CEthernetLayer class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_ETHERNETLAYER_H__7857C9C2_B459_4DC8_B9B3_4E6C8B587B29__INCLUDED_)
#define AFX_ETHERNETLAYER_H__7857C9C2_B459_4DC8_B9B3_4E6C8B587B29__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "BaseLayer.h"
#include "pch.h"

class CEthernetLayer
	: public CBaseLayer
{
private:
	inline void		ResetHeader();

public:
	BOOL			Receive(unsigned char* ppayload);
	BOOL			Send(unsigned char* ppayload, int nlength, unsigned short type);
	void			SetDestinAddress(unsigned char* pAddress);
	void			SetSourceAddress(unsigned char* pAddress);
	unsigned char* GetDestinAddress();
	unsigned char* GetSourceAddress();

	CEthernetLayer(char* pName);
	virtual ~CEthernetLayer();

	typedef struct _ETHERNET_HEADER {

		unsigned char	enet_dstaddr[6];		// destination address of ethernet layer
		unsigned char	enet_srcaddr[6];		// source address of ethernet layer
		unsigned short	enet_type;		// type of ethernet layer
		unsigned char	enet_data[ETHER_MAX_DATA_SIZE]; // frame data

	} ETHERNET_HEADER, * PETHERNET_HEADER;

protected:
	ETHERNET_HEADER	m_sHeader;
	static bool AddressEquals(unsigned char* addr1, unsigned char* addr2);
	static bool IsBroadcast(unsigned char* address);
};

#endif // !defined(AFX_ETHERNETLAYER_H__7857C9C2_	B459_4DC8_B9B3_4E6C8B587B29__INCLUDED_)