icmp.h

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/****************************************Copyright (c)**************************************************
**                               Guangzou ZLG-MCU Development Co.,LTD.
**                                      graduate school
**                                 http://www.zlgmcu.com
**
**--------------File Info-------------------------------------------------------------------------------
** File Name: dhcp.h
** Last modified Date:  2004-11-27
** Last Version: 1.0
** Descriptions: DHCP HEAD FILE
**
**------------------------------------------------------------------------------------------------------
** Created By: Yehaoben
** Created date:   2004-11-27
** Version: 1.0
** Descriptions: First version
**
**------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Descriptions:
**
********************************************************************************************************/

#ifdef ICMP_GLOBALS
#define ICMP_EXT 
#else
#define ICMP_EXT extern 
#endif 
/********************************************************************************************************
**                             Structure Define
********************************************************************************************************/
typedef struct  {/*包含在IP包中，是IP的上层为0X01的应用*/
                uint8 	type;  		       	/*0X08 PING请求 0X00 PING应答*/
                uint8 	option; 		   	/*0X00 PING*/
                uint16 	Crc;
                uint16 	id;
                uint16 	seq;
                uint8 	icmpdata[32];
              }icmp;
union icmp_rc	{
				icmp e_icmp;
			 	struct 	{uint16 	 	wordbuf[20];}words;
			};

typedef struct {	//ipethernet 	etf;
				union ip_rc			ipf;
				union icmp_rc		icmpf;
			}icmppro;

/********************************************************************************************************
**                              Global Variables Define
********************************************************************************************************/
ICMP_EXT union icmp_rc IcmpPacked;
/********************************************************************************************************
**                              Function Define
********************************************************************************************************/
ICMP_EXT uint16  CreateIcmpCrc(union icmp_rc) ;
ICMP_EXT uint8 send_icmp_packed( uint8  * ICMPSENDPTR);
ICMP_EXT void icmp_process(uint8  * ICMPSENDPTR,uint8 num) ;
ICMP_EXT void Ping_Precess(uint8 * de_ip,uint8 * so_ip);
ICMP_EXT void Icmp_Send(uint8 type,uint8 option,uint8 *so_ip,uint8 *de_ip, uint8 * REC_FRAME );