1/*
2 * Copyright (C) 1999-2013, Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 *
16 * Fundamental constants relating to 802.3
17 *
18 * $Id: 802.3.h 382882 2013-02-04 23:24:31Z $
19 */
20
21#ifndef _802_3_h_
22#define _802_3_h_
23
24/* This marks the start of a packed structure section. */
25#include <packed_section_start.h>
26
27#define SNAP_HDR_LEN	6	/* 802.3 SNAP header length */
28#define DOT3_OUI_LEN	3	/* 802.3 oui length */
29
30BWL_PRE_PACKED_STRUCT struct dot3_mac_llc_snap_header {
31	uint8	ether_dhost[ETHER_ADDR_LEN];	/* dest mac */
32	uint8	ether_shost[ETHER_ADDR_LEN];	/* src mac */
33	uint16	length;				/* frame length incl header */
34	uint8	dsap;				/* always 0xAA */
35	uint8	ssap;				/* always 0xAA */
36	uint8	ctl;				/* always 0x03 */
37	uint8	oui[DOT3_OUI_LEN];		/* RFC1042: 0x00 0x00 0x00
38						 * Bridge-Tunnel: 0x00 0x00 0xF8
39						 */
40	uint16	type;				/* ethertype */
41} BWL_POST_PACKED_STRUCT;
42
43/* This marks the end of a packed structure section. */
44#include <packed_section_end.h>
45
46#endif	/* #ifndef _802_3_h_ */
47