70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
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/*
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* 802.1Q VLAN protocol definitions
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*
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* Copyright (C) 1999-2012, Broadcom Corporation
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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*
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* As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module. An independent module is a module which is not
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* derived from this software. The special exception does not apply to any
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* modifications of the software.
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a license
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* other than the GPL, without Broadcom's express prior written consent.
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*
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* $Id: vlan.h 241182 2011-02-17 21:50:03Z $
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*/
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#ifndef _vlan_h_
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#define _vlan_h_
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#ifndef _TYPEDEFS_H_
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#include <typedefs.h>
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#endif
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#include <packed_section_start.h>
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#define VLAN_VID_MASK 0xfff
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#define VLAN_CFI_SHIFT 12
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#define VLAN_PRI_SHIFT 13
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#define VLAN_PRI_MASK 7
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#define VLAN_TAG_LEN 4
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#define VLAN_TAG_OFFSET (2 * ETHER_ADDR_LEN)
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#define VLAN_TPID 0x8100
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struct ethervlan_header {
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uint8 ether_dhost[ETHER_ADDR_LEN];
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uint8 ether_shost[ETHER_ADDR_LEN];
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uint16 vlan_type;
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uint16 vlan_tag;
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uint16 ether_type;
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};
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#define ETHERVLAN_HDR_LEN (ETHER_HDR_LEN + VLAN_TAG_LEN)
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#include <packed_section_end.h>
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#define ETHERVLAN_MOVE_HDR(d, s) \
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do { \
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struct ethervlan_header t; \
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t = *(struct ethervlan_header *)(s); \
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*(struct ethervlan_header *)(d) = t; \
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} while (0)
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#endif
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