/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SNOOP_VLAN_H
#define _SNOOP_VLAN_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/ethernet.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* The offset in bytes, in a VLAN tagged packet, from the
* ethernet header ethertype (which is ETHERTYPE_VLAN) to
* the encapsulated ethertype.
*/
#define ENCAP_ETHERTYPE_OFF (offsetof(struct ether_vlan_header, ether_type) -\
offsetof(struct ether_vlan_header, ether_tpid))
/*
* The offset in bytes, from the beginning of an ethernet header,
* to the VLAN ID.
*/
#define VLAN_ID_OFFSET (offsetof(struct ether_vlan_header, ether_tci) -\
offsetof(struct ether_vlan_header, ether_dhost))
#ifdef __cplusplus
}
#endif
#endif /* _SNOOP_VLAN_H */