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_WCCP	0x883E		/* Web-cache coordination protocol
63					 * defined in draft-wilson-wrec-wccp-v2-00.txt */
64#define ETH_P_PPP_DISC	0x8863		/* PPPoE discovery messages     */
65#define ETH_P_PPP_SES	0x8864		/* PPPoE session messages	*/
66#define ETH_P_MPLS_UC	0x8847		/* MPLS Unicast traffic		*/
67#define ETH_P_MPLS_MC	0x8848		/* MPLS Multicast traffic	*/
68#define ETH_P_ATMMPOA	0x884c		/* MultiProtocol Over ATM	*/
69#define ETH_P_ATMFATE	0x8884		/* Frame-based ATM Transport
70					 * over Ethernet
71					 */
72#define ETH_P_AOE	0x88A2		/* ATA over Ethernet		*/
73
74/*
75 *	Non DIX types. Won't clash for 1500 types.
76 */
77
78#define ETH_P_802_3	0x0001		/* Dummy type for 802.3 frames  */
79#define ETH_P_AX25	0x0002		/* Dummy protocol id for AX.25  */
80#define ETH_P_ALL	0x0003		/* Every packet (be careful!!!) */
81#define ETH_P_802_2	0x0004		/* 802.2 frames 		*/
82#define ETH_P_SNAP	0x0005		/* Internal only		*/
83#define ETH_P_DDCMP     0x0006          /* DEC DDCMP: Internal only     */
84#define ETH_P_WAN_PPP   0x0007          /* Dummy type for WAN PPP frames*/
85#define ETH_P_PPP_MP    0x0008          /* Dummy type for PPP MP frames */
86#define ETH_P_LOCALTALK 0x0009		/* Localtalk pseudo type 	*/
87#define ETH_P_PPPTALK	0x0010		/* Dummy type for Atalk over PPP*/
88#define ETH_P_TR_802_2	0x0011		/* 802.2 frames 		*/
89#define ETH_P_MOBITEX	0x0015		/* Mobitex (kaz@cafe.net)	*/
90#define ETH_P_CONTROL	0x0016		/* Card specific control frames */
91#define ETH_P_IRDA	0x0017		/* Linux-IrDA			*/
92#define ETH_P_ECONET	0x0018		/* Acorn Econet			*/
93#define ETH_P_HDLC	0x0019		/* HDLC frames			*/
94#define ETH_P_ARCNET	0x001A		/* 1A for ArcNet :-)            */
95
96/*
97 *	This is an Ethernet frame header.
98 */
99
100struct ethhdr {
101	unsigned char	h_dest[ETH_ALEN];	/* destination eth addr	*/
102	unsigned char	h_source[ETH_ALEN];	/* source ether addr	*/
103	unsigned short	h_proto;		/* packet type ID field	*/
104} __attribute__((packed));
105
106#endif	/* _LINUX_IF_ETHER_H */
107