1/* 2 * Copyright (C) 2013, Broadcom Corporation 3 * All Rights Reserved. 4 * 5 * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation; 6 * the contents of this file may not be disclosed to third parties, copied 7 * or duplicated in any form, in whole or in part, without the prior 8 * written permission of Broadcom Corporation. 9 * 10 * Fundamental constants relating to 802.3 11 * 12 * $Id: 802.3.h 323393 2012-03-23 23:32:14Z $ 13 */ 14 15#ifndef _802_3_h_ 16#define _802_3_h_ 17 18/* This marks the start of a packed structure section. */ 19#include <packed_section_start.h> 20 21#define SNAP_HDR_LEN 6 /* 802.3 SNAP header length */ 22#define DOT3_OUI_LEN 3 /* 802.3 oui length */ 23 24BWL_PRE_PACKED_STRUCT struct dot3_mac_llc_snap_header { 25 uint8 ether_dhost[ETHER_ADDR_LEN]; /* dest mac */ 26 uint8 ether_shost[ETHER_ADDR_LEN]; /* src mac */ 27 uint16 length; /* frame length incl header */ 28 uint8 dsap; /* always 0xAA */ 29 uint8 ssap; /* always 0xAA */ 30 uint8 ctl; /* always 0x03 */ 31 uint8 oui[DOT3_OUI_LEN]; /* RFC1042: 0x00 0x00 0x00 32 * Bridge-Tunnel: 0x00 0x00 0xF8 33 */ 34 uint16 type; /* ethertype */ 35} BWL_POST_PACKED_STRUCT; 36 37/* This marks the end of a packed structure section. */ 38#include <packed_section_end.h> 39 40#endif /* #ifndef _802_3_h_ */ 41