// -------------------------------------------------------------------------
// ipv4.h
//
// 21.12.2003, J. Ahrensfeld
//
// -------------------------------------------------------------------------
#ifndef ICMP_H
#define ICMP_H

#include "libsys.h"
#include "ethernet.h"

// -------------------------------------------------------------------------
typedef struct _sICMP
{
	uint8_t type;
	uint8_t icmp_code;
	uint16_t hdr_chksum;
	uint16_t data_hdr[2];

} __attribute__ ((__packed__)) ICMP;


#define	ICMP_ECHO_REPLY			0		// Echo reply.
#define	ICMP_DST_UNREACH		3 		// Destination unreachable.
#define	ICMP_SRC_QUENCH			4		// Source quench.
#define	ICMP_REDIRECT			5		// Redirect.
#define	ICMP_ALT_HOST_ADDR		6		// Alternate Host Address.
#define	ICMP_ECHO_REQUEST		8		// Echo request.
#define	ICMP_ROUTER_ADVERTISE	9		// Router advertisement.
#define	ICMP_ROUTER_SOLIC		10		// Router solicitation.
#define	ICMP_TIME_EXCEEDED		11		// Time exceeded.
#define	ICMP_PARAM_PROBLEM		12		// Parameter problem.
#define	ICMP_TIMESTAMP_REQUEST	13		// Timestamp request.
#define	ICMP_TIMESTAMP_REPLY	14		// Timestamp reply.
#define	ICMP_INFO_REQUEST		15		// Information request.
#define	ICMP_INFO_RPLY			16		// Information reply.
#define	ICMP_ADDR_MASK_REQUEST	17		// Address mask request.
#define	ICMP_ADDR_MASK_REPLY	18		// Address mask reply.
#define	ICMP_TRACEROUTE			30		// Traceroute.
#define	ICMP_CONV_ERROR			31		// Conversion error.
#define	ICMP_MOB_HOST_REDIRECT	32		// Mobile Host Redirect.
#define	ICMP_IPV6_WAY			33		// IPv6 Where-Are-You.
#define	ICMP_IPV6_IAH			34		// IPv6 I-Am-Here.
#define	ICMP_MOB_REG_REQUEST	35		// Mobile Registration Request.
#define	ICMP_MOB_REG_REPLY		36		// Mobile Registration Reply.
#define	ICMP_DOM_NAME_REQUEST	37		// Domain Name request.
#define	ICMP_DOM_NAME_REPLY		38		// Domain Name reply.
#define	ICMP_SKIP_ADP			39		// SKIP Algorithm Discovery Protocol.
#define	ICMP_PHOTURIS			40		// Photuris, Security failures.

// -------------------------------------------------------------------------
void ICMPSendRequest(packet_t *pPacket, uint8_t *inet_addr_src, uint8_t *inet_addr_dst, uint8_t *icmp_payload, uint16_t len);
void ICMPSendReply(packet_t *pPacket, uint8_t *inet_addr_src, uint8_t *inet_addr_dst, ICMP *pICMP, uint8_t *icmp_payload, uint16_t len);

// -------------------------------------------------------------------------
#endif // ICMP_H