icmp.h

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#ifndef __ICMP_H__
#define __ICMP_H__
 
#include <Net/ipv4.h>
#include <Fs/vfs.h>
 
#ifdef ARCH_X64
#pragma pack(push,1)
#endif
typedef struct _icmp_head_ {
    unsigned char type;
    unsigned char code;
    unsigned short checksum;
    unsigned short identifier;
    unsigned short sequenceNum;
    unsigned char payload[];
}ICMPHeader;
#ifdef ARCH_X64
#pragma pack(pop)
#endif
 
 /*
 * ICMPInitialise -- initialise ICMP
 */
extern void ICMPInitialise();
/*
 * AuICMPHandle -- ICMP handler
 */
extern void AuICMPHandle(IPv4Header* ipv4, AuVFSNode* nic);
 
/*
 * AuICMPSendDestUnreachable -- RFC 792 type 3 (code as given).
 * Includes original IP header + 8 bytes of payload.
 */
extern void AuICMPSendDestUnreachable(IPv4Header* orig, AuVFSNode* nic, uint8_t code);
/*
* CreateICMPSocket -- create a new Internet
* Control Message Protocol (ICMP) protocol
*/
extern int CreateICMPSocket();
 
#endif