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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 (at) uWalt.NL.Mugnet.ORG>
     11  *		Donald Becker, <becker (at) super.org>
     12  *		Alan Cox, <alan (at) lxorguk.ukuu.org.uk>
     13  *		Steve Whitehouse, <gw7rrm (at) 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 #include <linux/types.h>
     25 
     26 /*
     27  *	IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
     28  *	and FCS/CRC (frame check sequence).
     29  */
     30 
     31 #define ETH_ALEN	6		/* Octets in one ethernet addr	 */
     32 #define ETH_HLEN	14		/* Total octets in header.	 */
     33 #define ETH_ZLEN	60		/* Min. octets in frame sans FCS */
     34 #define ETH_DATA_LEN	1500		/* Max. octets in payload	 */
     35 #define ETH_FRAME_LEN	1514		/* Max. octets in frame sans FCS */
     36 #define ETH_FCS_LEN	4		/* Octets in the FCS		 */
     37 
     38 /*
     39  *	These are the defined Ethernet Protocol ID's.
     40  */
     41 
     42 #define ETH_P_LOOP	0x0060		/* Ethernet Loopback packet	*/
     43 #define ETH_P_PUP	0x0200		/* Xerox PUP packet		*/
     44 #define ETH_P_PUPAT	0x0201		/* Xerox PUP Addr Trans packet	*/
     45 #define ETH_P_IP	0x0800		/* Internet Protocol packet	*/
     46 #define ETH_P_X25	0x0805		/* CCITT X.25			*/
     47 #define ETH_P_ARP	0x0806		/* Address Resolution packet	*/
     48 #define	ETH_P_BPQ	0x08FF		/* G8BPQ AX.25 Ethernet Packet	[ NOT AN OFFICIALLY REGISTERED ID ] */
     49 #define ETH_P_IEEEPUP	0x0a00		/* Xerox IEEE802.3 PUP packet */
     50 #define ETH_P_IEEEPUPAT	0x0a01		/* Xerox IEEE802.3 PUP Addr Trans packet */
     51 #define ETH_P_DEC       0x6000          /* DEC Assigned proto           */
     52 #define ETH_P_DNA_DL    0x6001          /* DEC DNA Dump/Load            */
     53 #define ETH_P_DNA_RC    0x6002          /* DEC DNA Remote Console       */
     54 #define ETH_P_DNA_RT    0x6003          /* DEC DNA Routing              */
     55 #define ETH_P_LAT       0x6004          /* DEC LAT                      */
     56 #define ETH_P_DIAG      0x6005          /* DEC Diagnostics              */
     57 #define ETH_P_CUST      0x6006          /* DEC Customer use             */
     58 #define ETH_P_SCA       0x6007          /* DEC Systems Comms Arch       */
     59 #define ETH_P_TEB	0x6558		/* Trans Ether Bridging		*/
     60 #define ETH_P_RARP      0x8035		/* Reverse Addr Res packet	*/
     61 #define ETH_P_ATALK	0x809B		/* Appletalk DDP		*/
     62 #define ETH_P_AARP	0x80F3		/* Appletalk AARP		*/
     63 #define ETH_P_8021Q	0x8100          /* 802.1Q VLAN Extended Header  */
     64 #define ETH_P_IPX	0x8137		/* IPX over DIX			*/
     65 #define ETH_P_IPV6	0x86DD		/* IPv6 over bluebook		*/
     66 #define ETH_P_PAUSE	0x8808		/* IEEE Pause frames. See 802.3 31B */
     67 #define ETH_P_SLOW	0x8809		/* Slow Protocol. See 802.3ad 43B */
     68 #define ETH_P_WCCP	0x883E		/* Web-cache coordination protocol
     69 					 * defined in draft-wilson-wrec-wccp-v2-00.txt */
     70 #define ETH_P_PPP_DISC	0x8863		/* PPPoE discovery messages     */
     71 #define ETH_P_PPP_SES	0x8864		/* PPPoE session messages	*/
     72 #define ETH_P_MPLS_UC	0x8847		/* MPLS Unicast traffic		*/
     73 #define ETH_P_MPLS_MC	0x8848		/* MPLS Multicast traffic	*/
     74 #define ETH_P_ATMMPOA	0x884c		/* MultiProtocol Over ATM	*/
     75 #define ETH_P_LINK_CTL	0x886c		/* HPNA, wlan link local tunnel */
     76 #define ETH_P_ATMFATE	0x8884		/* Frame-based ATM Transport
     77 					 * over Ethernet
     78 					 */
     79 #define ETH_P_PAE	0x888E		/* Port Access Entity (IEEE 802.1X) */
     80 #define ETH_P_AOE	0x88A2		/* ATA over Ethernet		*/
     81 #define ETH_P_8021AD	0x88A8          /* 802.1ad Service VLAN		*/
     82 #define ETH_P_802_EX1	0x88B5		/* 802.1 Local Experimental 1.  */
     83 #define ETH_P_TIPC	0x88CA		/* TIPC 			*/
     84 #define ETH_P_8021AH	0x88E7          /* 802.1ah Backbone Service Tag */
     85 #define ETH_P_1588	0x88F7		/* IEEE 1588 Timesync */
     86 #define ETH_P_FCOE	0x8906		/* Fibre Channel over Ethernet  */
     87 #define ETH_P_TDLS	0x890D          /* TDLS */
     88 #define ETH_P_FIP	0x8914		/* FCoE Initialization Protocol */
     89 #define ETH_P_QINQ1	0x9100		/* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */
     90 #define ETH_P_QINQ2	0x9200		/* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */
     91 #define ETH_P_QINQ3	0x9300		/* deprecated QinQ VLAN [ NOT AN OFFICIALLY REGISTERED ID ] */
     92 #define ETH_P_EDSA	0xDADA		/* Ethertype DSA [ NOT AN OFFICIALLY REGISTERED ID ] */
     93 #define ETH_P_AF_IUCV   0xFBFB		/* IBM af_iucv [ NOT AN OFFICIALLY REGISTERED ID ] */
     94 
     95 /*
     96  *	Non DIX types. Won't clash for 1500 types.
     97  */
     98 
     99 #define ETH_P_802_3	0x0001		/* Dummy type for 802.3 frames  */
    100 #define ETH_P_AX25	0x0002		/* Dummy protocol id for AX.25  */
    101 #define ETH_P_ALL	0x0003		/* Every packet (be careful!!!) */
    102 #define ETH_P_802_2	0x0004		/* 802.2 frames 		*/
    103 #define ETH_P_SNAP	0x0005		/* Internal only		*/
    104 #define ETH_P_DDCMP     0x0006          /* DEC DDCMP: Internal only     */
    105 #define ETH_P_WAN_PPP   0x0007          /* Dummy type for WAN PPP frames*/
    106 #define ETH_P_PPP_MP    0x0008          /* Dummy type for PPP MP frames */
    107 #define ETH_P_LOCALTALK 0x0009		/* Localtalk pseudo type 	*/
    108 #define ETH_P_CAN	0x000C		/* Controller Area Network      */
    109 #define ETH_P_PPPTALK	0x0010		/* Dummy type for Atalk over PPP*/
    110 #define ETH_P_TR_802_2	0x0011		/* 802.2 frames 		*/
    111 #define ETH_P_MOBITEX	0x0015		/* Mobitex (kaz (at) cafe.net)	*/
    112 #define ETH_P_CONTROL	0x0016		/* Card specific control frames */
    113 #define ETH_P_IRDA	0x0017		/* Linux-IrDA			*/
    114 #define ETH_P_ECONET	0x0018		/* Acorn Econet			*/
    115 #define ETH_P_HDLC	0x0019		/* HDLC frames			*/
    116 #define ETH_P_ARCNET	0x001A		/* 1A for ArcNet :-)            */
    117 #define ETH_P_DSA	0x001B		/* Distributed Switch Arch.	*/
    118 #define ETH_P_TRAILER	0x001C		/* Trailer switch tagging	*/
    119 #define ETH_P_PHONET	0x00F5		/* Nokia Phonet frames          */
    120 #define ETH_P_IEEE802154 0x00F6		/* IEEE802.15.4 frame		*/
    121 #define ETH_P_CAIF	0x00F7		/* ST-Ericsson CAIF protocol	*/
    122 
    123 /*
    124  *	This is an Ethernet frame header.
    125  */
    126 
    127 struct ethhdr {
    128 	unsigned char	h_dest[ETH_ALEN];	/* destination eth addr	*/
    129 	unsigned char	h_source[ETH_ALEN];	/* source ether addr	*/
    130 	__be16		h_proto;		/* packet type ID field	*/
    131 } __attribute__((packed));
    132 
    133 
    134 #endif	/* _LINUX_IF_ETHER_H */
    135