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Linux/include/linux/if_ether.h

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  1 /*
  2  * INET         An implementation of the TCP/IP protocol suite for the LINUX
  3  *              operating system.  INET is implemented using the  BSD Socket
  4  *              interface as the means of communication with the user level.
  5  *
  6  *              Global definitions for the Ethernet IEEE 802.3 interface.
  7  *
  8  * Version:     @(#)if_ether.h  1.0.1a  02/08/94
  9  *
 10  * Author:      Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 11  *              Donald Becker, <becker@super.org>
 12  *              Alan Cox, <alan@redhat.com>
 13  *              Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
 14  *
 15  *              This program is free software; you can redistribute it and/or
 16  *              modify it under the terms of the GNU General Public License
 17  *              as published by the Free Software Foundation; either version
 18  *              2 of the License, or (at your option) any later version.
 19  */
 20  
 21 #ifndef _LINUX_IF_ETHER_H
 22 #define _LINUX_IF_ETHER_H
 23 
 24 /*
 25  *      IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
 26  *      and FCS/CRC (frame check sequence). 
 27  */
 28 
 29 #define ETH_ALEN        6               /* Octets in one ethernet addr   */
 30 #define ETH_HLEN        14              /* Total octets in header.       */
 31 #define ETH_ZLEN        60              /* Min. octets in frame sans FCS */
 32 #define ETH_DATA_LEN    1500            /* Max. octets in payload        */
 33 #define ETH_FRAME_LEN   1514            /* Max. octets in frame sans FCS */
 34 
 35 /*
 36  *      These are the defined Ethernet Protocol ID's.
 37  */
 38 
 39 #define ETH_P_LOOP      0x0060          /* Ethernet Loopback packet     */
 40 #define ETH_P_PUP       0x0200          /* Xerox PUP packet             */
 41 #define ETH_P_PUPAT     0x0201          /* Xerox PUP Addr Trans packet  */
 42 #define ETH_P_IP        0x0800          /* Internet Protocol packet     */
 43 #define ETH_P_X25       0x0805          /* CCITT X.25                   */
 44 #define ETH_P_ARP       0x0806          /* Address Resolution packet    */
 45 #define ETH_P_BPQ       0x08FF          /* G8BPQ AX.25 Ethernet Packet  [ NOT AN OFFICIALLY REGISTERED ID ] */
 46 #define ETH_P_IEEEPUP   0x0a00          /* Xerox IEEE802.3 PUP packet */
 47 #define ETH_P_IEEEPUPAT 0x0a01          /* Xerox IEEE802.3 PUP Addr Trans packet */
 48 #define ETH_P_DEC       0x6000          /* DEC Assigned proto           */
 49 #define ETH_P_DNA_DL    0x6001          /* DEC DNA Dump/Load            */
 50 #define ETH_P_DNA_RC    0x6002          /* DEC DNA Remote Console       */
 51 #define ETH_P_DNA_RT    0x6003          /* DEC DNA Routing              */
 52 #define ETH_P_LAT       0x6004          /* DEC LAT                      */
 53 #define ETH_P_DIAG      0x6005          /* DEC Diagnostics              */
 54 #define ETH_P_CUST      0x6006          /* DEC Customer use             */
 55 #define ETH_P_SCA       0x6007          /* DEC Systems Comms Arch       */
 56 #define ETH_P_RARP      0x8035          /* Reverse Addr Res packet      */
 57 #define ETH_P_ATALK     0x809B          /* Appletalk DDP                */
 58 #define ETH_P_AARP      0x80F3          /* Appletalk AARP               */
 59 #define ETH_P_8021Q     0x8100          /* 802.1Q VLAN Extended Header  */
 60 #define ETH_P_IPX       0x8137          /* IPX over DIX                 */
 61 #define ETH_P_IPV6      0x86DD          /* IPv6 over bluebook           */
 62 #define ETH_P_PPP_DISC  0x8863          /* PPPoE discovery messages     */
 63 #define ETH_P_PPP_SES   0x8864          /* PPPoE session messages       */
 64 #define ETH_P_MPLS_UC   0x8847          /* MPLS Unicast traffic         */
 65 #define ETH_P_MPLS_MC   0x8848          /* MPLS Multicast traffic       */
 66 #define ETH_P_ATMMPOA   0x884c          /* MultiProtocol Over ATM       */
 67 #define ETH_P_ATMFATE   0x8884          /* Frame-based ATM Transport
 68                                          * over Ethernet
 69                                          */
 70 #define ETH_P_EDP2      0x88A2          /* Coraid EDP2                  */
 71 
 72 /*
 73  *      Non DIX types. Won't clash for 1500 types.
 74  */
 75  
 76 #define ETH_P_802_3     0x0001          /* Dummy type for 802.3 frames  */
 77 #define ETH_P_AX25      0x0002          /* Dummy protocol id for AX.25  */
 78 #define ETH_P_ALL       0x0003          /* Every packet (be careful!!!) */
 79 #define ETH_P_802_2     0x0004          /* 802.2 frames                 */
 80 #define ETH_P_SNAP      0x0005          /* Internal only                */
 81 #define ETH_P_DDCMP     0x0006          /* DEC DDCMP: Internal only     */
 82 #define ETH_P_WAN_PPP   0x0007          /* Dummy type for WAN PPP frames*/
 83 #define ETH_P_PPP_MP    0x0008          /* Dummy type for PPP MP frames */
 84 #define ETH_P_LOCALTALK 0x0009          /* Localtalk pseudo type        */
 85 #define ETH_P_PPPTALK   0x0010          /* Dummy type for Atalk over PPP*/
 86 #define ETH_P_TR_802_2  0x0011          /* 802.2 frames                 */
 87 #define ETH_P_MOBITEX   0x0015          /* Mobitex (kaz@cafe.net)       */
 88 #define ETH_P_CONTROL   0x0016          /* Card specific control frames */
 89 #define ETH_P_IRDA      0x0017          /* Linux-IrDA                   */
 90 #define ETH_P_ECONET    0x0018          /* Acorn Econet                 */
 91 #define ETH_P_HDLC      0x0019          /* HDLC frames                  */
 92 
 93 /*
 94  *      This is an Ethernet frame header.
 95  */
 96  
 97 struct ethhdr 
 98 {
 99         unsigned char   h_dest[ETH_ALEN];       /* destination eth addr */
100         unsigned char   h_source[ETH_ALEN];     /* source ether addr    */
101         unsigned short  h_proto;                /* packet type ID field */
102 } __attribute__((packed));
103 
104 #endif  /* _LINUX_IF_ETHER_H */
105 

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