icmp.h

//********************************************************************************************
//
// File : icmp.h implement for Internet Control Message Protocol
//
//********************************************************************************************
#define ICMP_TYPE_ECHOREPLY_V 	0
#define ICMP_TYPE_ECHOREQUEST_V 8
#define ICMP_PACKET_LEN			40

// icmp buffer position
#define ICMP_TYPE_P				0x22
#define ICMP_CODE_P				0x23
#define ICMP_CHECKSUM_H_P		0x24
#define ICMP_CHECKSUM_L_P		0x25
#define ICMP_IDENTIFIER_H_P		0x26
#define ICMP_IDENTIFIER_L_P		0x27
#define ICMP_SEQUENCE_H_P		0x28
#define ICMP_SEQUENCE_L_P		0x29
#define ICMP_DATA_P				0x2A

//********************************************************************************************
//
// Prototype function
//
//********************************************************************************************
extern BYTE icmp_send_reply ( BYTE *rxtx_buffer, BYTE *dest_mac, BYTE *dest_ip );
extern void icmp_send_request ( BYTE *rxtx_buffer, BYTE *dest_mac, BYTE *dest_ip );
extern BYTE icmp_ping ( BYTE *rxtx_buffer, BYTE *dest_mac, BYTE *dest_ip );