1 /* 2 * 802.1Q VLAN protocol definitions 3 * 4 * Copyright (C) 1999-2009, Broadcom Corporation 5 * 6 * Unless you and Broadcom execute a separate written software license 7 * agreement governing use of this software, this software is licensed to you 8 * under the terms of the GNU General Public License version 2 (the "GPL"), 9 * available at http://www.broadcom.com/licenses/GPLv2.php, with the 10 * following added to such license: 11 * 12 * As a special exception, the copyright holders of this software give you 13 * permission to link this software with independent modules, and to copy and 14 * distribute the resulting executable under terms of your choice, provided that 15 * you also meet, for each linked independent module, the terms and conditions of 16 * the license of that module. An independent module is a module which is not 17 * derived from this software. The special exception does not apply to any 18 * modifications of the software. 19 * 20 * Notwithstanding the above, under no circumstances may you combine this 21 * software in any way with any other Broadcom software provided under a license 22 * other than the GPL, without Broadcom's express prior written consent. 23 * 24 * $Id: vlan.h,v 9.4.196.2 2008/12/07 21:19:20 Exp $ 25 */ 26 27 28 #ifndef _vlan_h_ 29 #define _vlan_h_ 30 31 #ifndef _TYPEDEFS_H_ 32 #include <typedefs.h> 33 #endif 34 35 36 #include <packed_section_start.h> 37 38 #define VLAN_VID_MASK 0xfff 39 #define VLAN_CFI_SHIFT 12 40 #define VLAN_PRI_SHIFT 13 41 42 #define VLAN_PRI_MASK 7 43 44 #define VLAN_TAG_LEN 4 45 #define VLAN_TAG_OFFSET (2 * ETHER_ADDR_LEN) 46 47 #define VLAN_TPID 0x8100 48 49 struct ethervlan_header { 50 uint8 ether_dhost[ETHER_ADDR_LEN]; 51 uint8 ether_shost[ETHER_ADDR_LEN]; 52 uint16 vlan_type; 53 uint16 vlan_tag; 54 uint16 ether_type; 55 }; 56 57 #define ETHERVLAN_HDR_LEN (ETHER_HDR_LEN + VLAN_TAG_LEN) 58 59 60 61 #include <packed_section_end.h> 62 63 #endif 64
