#ifdef UDP_GLOBALS
#define UDP_EXT
#else
#define UDP_EXT extern 
#endif 

#define UdpMaxRec	3 
#define MAX_UDP_LINKS	5 
typedef struct  {  
		
		uint8	rev;
		uint8	NextProtocal;
               	uint16 	TotalLen;         	   /*校驗(yàn)和,包括偽頭部,udp頭部,數(shù)據(jù)*/
             	uint8 	SourceIp[4];  	   /*源端口*/
               	uint8 	DestId[4];     	   /*目的端口*/
		}udp_dhead;
typedef struct  {   
               uint16 	SourcePort; 	   /*源端口*/
               uint16 	DestPort;    	   /*目的端口*/
               uint16	length;			/*長度UDP頭＋數(shù)據(jù)*/
               uint16 	Crc;        	   /*校驗(yàn)和,包括偽頭部,udp頭部,數(shù)據(jù)*/
               uint8 	udpdata[1478];     /*udp數(shù)據(jù)*/
             }udp_data;
typedef struct  {
		udp_dhead 	UdpDHead;
		udp_data	Udp;			
		}udp_send;
typedef struct  {
		uint16		De_Port;
		uint8 		De_Ip[4];
		uint16		len;
		uint8 		num;
		}udp_sub_socket;
typedef struct  {
			uint16		My_Port;
			uint8 		My_Ip[4];
			uint8		Rec_Sta;
			udp_sub_socket	info[UdpMaxRec];
			OS_EVENT	*UdpSemRec;
		}udp_socket;
UDP_EXT udp_socket UdpStatus[MAX_UDP_LINKS];
UDP_EXT udp_data UdpRecBuff[UdpMaxRec];
UDP_EXT uint16 CheckSumUdp(uint8 *check,uint16 length);
UDP_EXT uint8 Udp_Process(Rec_Ptr * Udp_Rec);// USE_XDATA keilreentrant ;
UDP_EXT void Udp_Initial(void);// keilreentrant ;