ethernet.h
Author: cmaier@cmassoc.net

    /*====================================================================*
     *
     *   Copyright (c) 2011 by Qualcomm Atheros.
     *
     *   Permission to use, copy, modify, and/or distribute this software
     *   for any purpose with or without fee is hereby granted, provided
     *   that the above copyright notice and this permission notice appear
     *   in all copies.
     *
     *   THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
     *   WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
     *   WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
     *   THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
     *   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
     *   LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
     *   NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
     *   CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     *
     *--------------------------------------------------------------------*/

    /*====================================================================*
     *
     *   ethernet.h - substitute net/ethernet.h for systems without one;
     *
     *.  Intellon INT6000 Linux Toolkit for HomePlug AV;
     *:  Published 2006-2009 by Intellon Corp. ALL RIGHTS RESERVED;
     *;  For demonstration; Not for production use;
     *
     *--------------------------------------------------------------------*/

    #ifndef ETHERNET_HEADER
    #define ETHERNET_HEADER

    /*====================================================================*
     *   system header files;
     *--------------------------------------------------------------------*/

    #include <stdint.h>

    /*====================================================================*
     *   Ethernet frame lengths;
     *--------------------------------------------------------------------*/

    #define	ETHER_ADDR_LEN		6
    #define	ETHER_TYPE_LEN		2
    #define	ETHER_CRC_LEN		4
    #define	ETHER_HDR_LEN		(ETHER_ADDR_LEN + ETHER_ADDR_LEN + ETHER_TYPE_LEN)
    #define	ETHER_MIN_LEN		64
    #define	ETHER_MAX_LEN		1518
    #define	ETHERMTU		1500
    #define ETHERMIN		(ETHER_MIN_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)

    /*====================================================================*
     *   Ethernet type/length field values;
     *--------------------------------------------------------------------*/

    #define	ETHERTYPE_PUP		0x0200
    #define	ETHERTYPE_IP		0x0800
    #define ETHERTYPE_ARP		0x0806
    #define ETHERTYPE_REVARP	0x8035
    #define	ETHERTYPE_VLAN		0x8100
    #define ETHERTYPE_IPV6		0x86dd
    #define	ETHERTYPE_LOOPBACK	0x9000
    #define ETHERTYPE_HP10		0x887B
    #define ETHERTYPE_HPAV		0x88E1

    /*====================================================================*
     *  Ethernet frame structure;
     *--------------------------------------------------------------------*/

    #pragma pack (push, 1)

    struct ether_header

    {
    	uint8_t ether_dhost [ETHER_ADDR_LEN];
    	uint8_t ether_shost [ETHER_ADDR_LEN];
    	uint16_t ether_type;
    };

    #pragma pack (pop)

    /*====================================================================*
     *
     *--------------------------------------------------------------------*/

    #endif

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