bsd/net/if_vlan_var.h

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright 1998 Massachusetts Institute of Technology
  24  *
  25  * Permission to use, copy, modify, and distribute this software and
  26  * its documentation for any purpose and without fee is hereby
  27  * granted, provided that both the above copyright notice and this
  28  * permission notice appear in all copies, that both the above
  29  * copyright notice and this permission notice appear in all
  30  * supporting documentation, and that the name of M.I.T. not be used
  31  * in advertising or publicity pertaining to distribution of the
  32  * software without specific, written prior permission.  M.I.T. makes
  33  * no representations about the suitability of this software for any
  34  * purpose.  It is provided "as is" without express or implied
  35  * warranty.
  36  *
  37  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
  38  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
  39  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  40  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
  41  * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  42  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  43  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  44  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  45  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  46  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  47  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  48  * SUCH DAMAGE.
  49  *
  50  * $FreeBSD: src/sys/net/if_vlan_var.h,v 1.16 2003/07/08 21:54:20 wpaul Exp $
  51  */
  52
  53 #ifndef _NET_IF_VLAN_VAR_H_
  54 #define _NET_IF_VLAN_VAR_H_     1
  55
  56 #define ETHER_VLAN_ENCAP_LEN    4       /* len of 802.1Q VLAN encapsulation */
  57 struct  ether_vlan_header {
  58         u_char  evl_dhost[ETHER_ADDR_LEN];
  59         u_char  evl_shost[ETHER_ADDR_LEN];
  60         u_int16_t evl_encap_proto;
  61         u_int16_t evl_tag;
  62         u_int16_t evl_proto;
  63 };
  64
  65 #define EVL_VLID_MASK   0x0FFF
  66 #define EVL_VLANOFTAG(tag) ((tag) & EVL_VLID_MASK)
  67 #define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7)
  68
  69 #if 0
  70 /* sysctl(3) tags, for compatibility purposes */
  71 #define VLANCTL_PROTO   1
  72 #define VLANCTL_MAX     2
  73 #endif 0
  74
  75 /*
  76  * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls.
  77  */
  78 struct  vlanreq {
  79         char    vlr_parent[IFNAMSIZ];
  80         u_short vlr_tag;
  81 };
  82
  83 #ifdef KERNEL_PRIVATE
  84 int vlan_family_init(void);
  85 #endif KERNEL_PRIVATE
  86 #endif /* _NET_IF_VLAN_VAR_H_ */