bsd/net/if_vlan_var.h

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * Copyright 1998 Massachusetts Institute of Technology
  30  *
  31  * Permission to use, copy, modify, and distribute this software and
  32  * its documentation for any purpose and without fee is hereby
  33  * granted, provided that both the above copyright notice and this
  34  * permission notice appear in all copies, that both the above
  35  * copyright notice and this permission notice appear in all
  36  * supporting documentation, and that the name of M.I.T. not be used
  37  * in advertising or publicity pertaining to distribution of the
  38  * software without specific, written prior permission.  M.I.T. makes
  39  * no representations about the suitability of this software for any
  40  * purpose.  It is provided "as is" without express or implied
  41  * warranty.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
  44  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
  45  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  46  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
  47  * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  48  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  49  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  50  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  51  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  52  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  53  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54  * SUCH DAMAGE.
  55  *
  56  * $FreeBSD: src/sys/net/if_vlan_var.h,v 1.16 2003/07/08 21:54:20 wpaul Exp $
  57  */
  58
  59 #ifndef _NET_IF_VLAN_VAR_H_
  60 #define _NET_IF_VLAN_VAR_H_     1
  61
  62 #define ETHER_VLAN_ENCAP_LEN    4       /* len of 802.1Q VLAN encapsulation */
  63 struct  ether_vlan_header {
  64         u_char  evl_dhost[ETHER_ADDR_LEN];
  65         u_char  evl_shost[ETHER_ADDR_LEN];
  66         u_int16_t evl_encap_proto;
  67         u_int16_t evl_tag;
  68         u_int16_t evl_proto;
  69 };
  70
  71 #define EVL_VLID_MASK   0x0FFF
  72 #define EVL_VLANOFTAG(tag) ((tag) & EVL_VLID_MASK)
  73 #define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7)
  74
  75 #if 0
  76 /* sysctl(3) tags, for compatibility purposes */
  77 #define VLANCTL_PROTO   1
  78 #define VLANCTL_MAX     2
  79 #endif 0
  80
  81 /*
  82  * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls.
  83  */
  84 struct  vlanreq {
  85         char    vlr_parent[IFNAMSIZ];
  86         u_short vlr_tag;
  87 };
  88
  89 #ifdef KERNEL_PRIVATE
  90 int vlan_family_init(void) __attribute__((section("__TEXT, initcode")));
  91 #endif KERNEL_PRIVATE
  92 #endif /* _NET_IF_VLAN_VAR_H_ */