www.pudn.com > whocq2src.zip > Protohdr.h

/**************************************************************************** 
 * Written by Sang-Eun Han (seh@brabo1.korea.ac.kr). 
 *  
 * Date : 
 * 
 * Filename : protohdr.h 
 * 
 * 
 * PERMISSION IS GRANTED TO USE, COPY AND DISTRIBUTE THIS SOFTWARE FOR ANY  
 * PURPOSE EXCEPT FOR A BUSINESS OR COMMERCIAL PURPOSE, AND WITHOUT FEE, PROVIDED,  
 * THAT THE ABOVE COPYRIGHT NOTICE AND THIS STATEMENT APPEAR IN ALL COPIES. 
 * I MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THIS 
 * SOFTWARE FOR ANY PURPOSE.  THIS SOFTWARE IS PROVIDED "AS IS." 
 * 
 */ 
 
#ifndef	_PROTOCOL_HEADER_H_ 
#define	_PROTOCOL_HEADER_H_ 
 
// Ethernet Frame Header 
typedef	struct	_ETHERNET_HDR { 
	UCHAR	Destination[6]; 
	UCHAR	Source[6]; 
	UCHAR	Protocol[2]; 
	UCHAR	Data[1]; 
} ETHERNET_HDR, *PETHERNET_HDR; 
 
//rfc1340 
#define PROTO_IP		(0x0800) 
#define	PROTO_ARP		(0x0806) 
#define	PROTO_XNS		(0x0600) 
#define	PROTO_SNMP		(0x814C) 
#define	PROTO_OLD_IPX	(0x8137) 
#define	PROTO_NOVELL	(0x8138) 
#define	PROTO_IPNG		(0x86DD) 
 
 
#define	OFFSET_IP	(14) 
 
// IPv4 Header 
typedef	struct	_IP_RHDR { 
	UCHAR	VerLen; 
	UCHAR	Service; 
	UCHAR	Length[2]; 
	UCHAR	Ident[2]; 
	UCHAR	Flagoff[2]; 
	UCHAR	Timelive; 
	UCHAR	Protocol; 
	UCHAR	Checksum[2]; 
	UCHAR	Source[4]; 
	UCHAR	Destination[4]; 
	UCHAR	Data[1]; 
} IP_RHDR, *PIP_RHDR; 
 
// IPv6 Header 
typedef	struct	_IPNG_RHDR { 
	UCHAR	VerPrio; 
	UCHAR	FlowLabel[3]; 
	UCHAR	Length[2]; 
	UCHAR	NextHdr; 
	UCHAR	HopLimit; 
	UCHAR	Source[16]; 
	UCHAR	Destination[16]; 
	UCHAR	Data[1]; 
} IPNG_RHDR, *PIPNG_RHDR; 
 
// TCP Header, RFC793 
typedef	struct	_TCP_RHDR { 
	UCHAR	Source[2]; 
	UCHAR	Destination[2]; 
	UCHAR	Seq[4]; 
	UCHAR	Ack[4]; 
	UCHAR	Rsvd0:4; 
	UCHAR	Offset:4; 
	UCHAR	Flags:6; 
	UCHAR	Rsvd1:2; 
	UCHAR	Window[2]; 
	UCHAR	Checksum[2]; 
	UCHAR	UrgPoint[2]; 
	UCHAR	Data[1]; 
} TCP_RHDR, *PTCP_RHDR; 
#define	TCP_FLAG_FIN	0x01 
#define	TCP_FLAG_SYN	0x02 
#define	TCP_FLAG_RST	0x04 
#define	TCP_FLAG_PSH	0x08 
#define	TCP_FLAG_ACK	0x10 
#define	TCP_FLAG_URG	0x20 
 
#define	PROTO_TCP	(6) 
 
// UDP Header 
typedef	struct	_UDP_RHDR { 
	UCHAR	Source[2]; 
	UCHAR	Destination[2]; 
	UCHAR	Length[2]; 
	UCHAR	Checksum[2]; 
	UCHAR	Data[1]; 
} UDP_RHDR, *PUDP_RHDR; 
 
 
// Pseudo Header for evaluating TCP/UDP Checksum 
typedef	struct	_PSU_RHDR { 
	UCHAR	Source[4]; 
	UCHAR	Destination[4]; 
	UCHAR	Zero; 
	UCHAR	Protocol; 
	UCHAR	Length[2]; 
	UCHAR	Data[1]; 
} PSU_RHDR, *PPSU_RHDR; 
 
 
//Borland CBuilder is 32 bit Win App 
//#ifdef	WIN32 
#define	TOUSHORT(x)	(USHORT)(*(x)<<8|*(x+1)) 
#define	TOULONG(x)	(ULONG)(*(x)<<24|*(x+1)<<16|*(x+2)<<8|*(x+3)) 
//#else 
//#define	TOUSHORT(x)	(*(USHORT *)x)	//Big-Endian 
//#define	TOULONG(x)	(*(ULONG *)x) 
//#endif 
 
 
#endif	/* _PROTOCOL_HEADER_H_ */