www.pudn.com > uay_source.rar > TcpIpHdr.h

#ifndef TCPIPHDR_H 
#define TCPIPHDR_h 
 
#define ETH_P_IP                                    0x0800          /* Internet Protocol packet     */ 
#define ETH_P_ARP                                   0x0806          /* Address Resolution packet    */ 
#define ETH_P_RARP                                  0x8035          /* Reverse Addr Res packet      */ 
#define ETH_P_8021P                                 0x8100          /* 802.1p                       */ 
#define ETH_P_DEFAULT                               ETH_P_ARP 
 
/* 
 * Protocols 
 */ 
#define IPPROTO_IP              0               /* dummy for IP */ 
#define IPPROTO_ICMP            1               /* control message protocol */ 
#define IPPROTO_IGMP            2               /* internet group management protocol */ 
#define IPPROTO_GGP             3               /* gateway^2 (deprecated) */ 
#define IPPROTO_TCP             6               /* tcp */ 
#define IPPROTO_PUP             12              /* pup */ 
#define IPPROTO_UDP             17              /* user datagram protocol */ 
#define IPPROTO_IDP             22              /* xns idp */ 
#define IPPROTO_ND              77              /* UNOFFICIAL net disk proto */ 
 
#define IPPROTO_RAW             255             /* raw IP packet */ 
#define IPPROTO_MAX             256 
 
 
 
 
#define ETH_ALEN	6 
#pragma pack(push,1) 
typedef 
struct _ETHHDR 
{ 
	unsigned char h_dest[ETH_ALEN];/*48位的目标地址的网卡物理地址*/ 
	unsigned char h_source[ETH_ALEN];/*48位的源地址的物理网卡地址*/ 
	unsigned short h_proto;/*16位的以太网协议*/ 
}ETHHDR,*PETHHDR; 
#pragma pack(pop) 
 
typedef 
struct _IPHDR { 
	UCHAR	ihl:4, 
		version:4; 
	UCHAR	tos; 
	USHORT	tot_len; 
	USHORT	id; 
	USHORT	frag_off; 
	UCHAR	ttl; 
	UCHAR	protocol; 
	USHORT	check; 
	ULONG	saddr; 
	ULONG	daddr; 
	/*The options start here. */ 
}IPHDR,*PIPHDR; 
 
typedef 
struct _TCPHDR { 
	USHORT	source; 
	USHORT	dest; 
	ULONG	seq; 
	ULONG	ack_seq; 
 
	USHORT	res1:4, 
		doff:4, 
		fin:1, 
		syn:1, 
		rst:1, 
		psh:1, 
		ack:1, 
		urg:1, 
		ece:1, 
		cwr:1; 
	 
	USHORT	window; 
	USHORT	check; 
	USHORT	urg_ptr; 
}TCPHDR,*PTCPHDR; 
 
 
enum { 
  TCP_ESTABLISHED = 1, 
  TCP_SYN_SENT, 
  TCP_SYN_RECV, 
  TCP_FIN_WAIT1, 
  TCP_FIN_WAIT2, 
  TCP_TIME_WAIT, 
  TCP_CLOSE, 
  TCP_CLOSE_WAIT, 
  TCP_LAST_ACK, 
  TCP_LISTEN, 
  TCP_CLOSING,	 /* now a valid state */ 
 
  TCP_MAX_STATES /* Leave at the end! */ 
}; 
 
typedef struct _PSDHDR               //定义TCP伪首部 
{ 
    unsigned long    saddr;            //源地址 
    unsigned long    daddr;            //目的地址 
    char            mbz; 
    char            ptcl;            //协议类型  
    unsigned short    tcpl;            //TCP长度 
}PSDHDR,*PPSDHDR; 
 
#endif //#ifndef TCPIPHDR_H