if_ether.h

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/*
 * INET         An implementation of the TCP/IP protocol suite for the LINUX
 *              operating system.  INET is implemented using the  BSD Socket
 *              interface as the means of communication with the user level.
 *
 *              Global definitions for the Ethernet IEEE 802.3 interface.
 *
 * Version:     @(#)if_ether.h  1.0.1a  02/08/94
 *
 * Author:      Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 *              Donald Becker, <becker@super.org>
 *              Alan Cox, <alan@redhat.com>
 *              Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
 *
 *              This program is free software; you can redistribute it and/or
 *              modify it under the terms of the GNU General Public License
 *              as published by the Free Software Foundation; either version
 *              2 of the License, or (at your option) any later version.
 */
 
#ifndef _LINUX_IF_ETHER_H
#define _LINUX_IF_ETHER_H

/*
 *      IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
 *      and FCS/CRC (frame check sequence). 
 */

#define ETH_ALEN        6               /* Octets in one ethernet addr   */
#define ETH_HLEN        14              /* Total octets in header.       */
#define ETH_ZLEN        60              /* Min. octets in frame sans FCS */
#define ETH_DATA_LEN    1500            /* Max. octets in payload        */
#define ETH_FRAME_LEN   1514            /* Max. octets in frame sans FCS */

/*
 *      These are the defined Ethernet Protocol ID's.
 */

#define ETH_P_LOOP      0x0060          /* Ethernet Loopback packet     */
#define ETH_P_ECHO      0x0200          /* Ethernet Echo packet         */
#define ETH_P_PUP       0x0400          /* Xerox PUP packet             */
#define ETH_P_IP        0x0800          /* Internet Protocol packet     */
#define ETH_P_X25       0x0805          /* CCITT X.25                   */
#define ETH_P_ARP       0x0806          /* Address Resolution packet    */
#define ETH_P_BPQ       0x08FF          /* G8BPQ AX.25 Ethernet Packet  [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_DEC       0x6000          /* DEC Assigned proto           */
#define ETH_P_DNA_DL    0x6001          /* DEC DNA Dump/Load            */
#define ETH_P_DNA_RC    0x6002          /* DEC DNA Remote Console       */
#define ETH_P_DNA_RT    0x6003          /* DEC DNA Routing              */
#define ETH_P_LAT       0x6004          /* DEC LAT                      */
#define ETH_P_DIAG      0x6005          /* DEC Diagnostics              */
#define ETH_P_CUST      0x6006          /* DEC Customer use             */
#define ETH_P_SCA       0x6007          /* DEC Systems Comms Arch       */
#define ETH_P_RARP      0x8035          /* Reverse Addr Res packet      */
#define ETH_P_ATALK     0x809B          /* Appletalk DDP                */
#define ETH_P_AARP      0x80F3          /* Appletalk AARP               */
#define ETH_P_IPX       0x8137          /* IPX over DIX                 */
#define ETH_P_IPV6      0x86DD          /* IPv6 over bluebook           */
#define ETH_P_ATMMPOA   0x884c          /* MultiProtocol Over ATM       */
#define ETH_P_ATMFATE   0x8884          /* Frame-based ATM Transport
                                         * over Ethernet
                                         */

/*
 *      Non DIX types. Won't clash for 1500 types.
 */
 
#define ETH_P_802_3     0x0001          /* Dummy type for 802.3 frames  */
#define ETH_P_AX25      0x0002          /* Dummy protocol id for AX.25  */
#define ETH_P_ALL       0x0003          /* Every packet (be careful!!!) */
#define ETH_P_802_2     0x0004          /* 802.2 frames                 */
#define ETH_P_SNAP      0x0005          /* Internal only                */
#define ETH_P_DDCMP     0x0006          /* DEC DDCMP: Internal only     */
#define ETH_P_WAN_PPP   0x0007          /* Dummy type for WAN PPP frames*/
#define ETH_P_PPP_MP    0x0008          /* Dummy type for PPP MP frames */
#define ETH_P_LOCALTALK 0x0009          /* Localtalk pseudo type        */
#define ETH_P_PPPTALK   0x0010          /* Dummy type for Atalk over PPP*/
#define ETH_P_TR_802_2  0x0011          /* 802.2 frames                 */
#define ETH_P_MOBITEX   0x0015          /* Mobitex (kaz@cafe.net)       */
#define ETH_P_CONTROL   0x0016          /* Card specific control frames */
#define ETH_P_IRDA      0x0017          /* Linux/IR                     */

/*
 *      This is an Ethernet frame header.
 */
 
struct ethhdr 
{
        unsigned char   h_dest[ETH_ALEN];       /* destination eth addr */
        unsigned char   h_source[ETH_ALEN];     /* source ether addr    */
        unsigned short  h_proto;                /* packet type ID field */
};

/*
 *      We Have changed the ethernet statistics collection data. This
 *      is just for partial compatibility for now.
 */
 
 
#define enet_statistics net_device_stats

#endif  /* _LINUX_IF_ETHER_H */

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