// -------------------------------------------------------------------------
// ethernet.h
//
//  21.12.2003, J. Ahrensfeld
//
// -------------------------------------------------------------------------
#ifndef ETHERNET_H
#define ETHERNET_H

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <time.h>
#include <sys/time.h>
#include <sys/types.h>
#include "libsys.h"

#define	ETH_PACKET_MIN_SIZE		64
#define	ETH_PACKET_MAX_SIZE		1500

// -------------------------------------------------------------------------
#define ARP_REQUEST			0x0001
#define ARP_REPLY			0x0002

#define	TYPE_HW_ETH10		0x0001
#define	TYPE_HW_ETH3		0x0002
#define	TYPE_HW_AX25		0x0003
#define	TYPE_HW_TKRNG		0x0004
#define	TYPE_HW_CHAOS		0x0005
#define	TYPE_HW_IEEE		0x0006
#define	TYPE_HW_ARCNET		0x0007

#define	TYPE_PROTO_IP		0x0800
#define	TYPE_PROTO_X75		0x0801
#define	TYPE_PROTO_NBS		0x0802
#define	TYPE_PROTO_ECMA		0x0803
#define	TYPE_PROTO_CHAOS	0x0804
#define	TYPE_PROTO_X25		0x0805
#define	TYPE_PROTO_ARP		0x0806
#define	TYPE_PROTO_XNS		0x0807
#define	TYPE_PROTO_LOOP		0x9000

#define HTONS(n) ((((uint16_t)((n) & 0xff)) << 8) | (((n) & 0xff00) >> 8))

// -------------------------------------------------------------------------
typedef struct _seth_hdr_t
{
	uint8_t eth_addr_dst[6], eth_addr_src[6];
	uint16_t proto;

} __attribute__ ((__packed__)) eth_hdr_t;

typedef struct _spacket_t
{
	uint8_t pkt_buf[1516];
	uint16_t size;
	uint8_t *pData;

} packet_t;

// -------------------------------------------------------------------------
void EthInit(void);
uint8_t *Eth_pkt_create(packet_t *pPacket, uint16_t proto, uint8_t *pHwAddr_src, uint8_t *pHwAddr_dst);
uint8_t *Eth_pkt_append(packet_t *pPacket, uint32_t size);
uint8_t *Eth_pkt_buffer_get(packet_t *pPacket);

uint32_t Eth_pkt_send(packet_t *pPacket);
uint32_t Eth_pkt_recv(uint8_t *pData);

uint16_t htons(uint16_t a);

// -------------------------------------------------------------------------
#endif // ETHERNET_H