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32 lines
863 B
C
32 lines
863 B
C
16 years ago
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/* Copyright (c) 2009 Open Information Security Foundation */
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/** \file
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* \author Breno Silva <breno.silva@gmail.com>
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*/
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#ifndef __DECODE_VLAN_H__
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#define __DECODE_VLAN_H__
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/** Vlan type */
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#define ETHERNET_TYPE_VLAN 0x8100
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/** Vlan macros to access Vlan priority, Vlan CFI and VID */
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#define GET_VLAN_PRIORITY(vlanh) ((ntohs((vlanh)->vlan_cfi) & 0xe000) >> 13)
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#define GET_VLAN_CFI(vlanh) ((ntohs((vlanh)->vlan_cfi) & 0x0100) >> 12)
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#define GET_VLAN_ID(vlanh) ((unsigned short)(ntohs((vlanh)->vlan_cfi) & 0x0FFF))
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#define GET_VLAN_PROTO(vlanh) ((ntohs((vlanh)->protocol)))
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/** Vlan header struct */
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typedef struct _VLANHdr {
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uint16_t vlan_cfi;
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uint16_t protocol; /** protocol field */
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}VLANHdr;
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/** VLAN header length */
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#define VLAN_HEADER_LEN 4
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void DecodeVLANRegisterTests(void);
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#endif /* __DECODE_VLAN_H__ */
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