sys/net/vlan/if_vlan_var.h

   1 /*
   2  * Copyright 1998 Massachusetts Institute of Technology
   3  *
   4  * Permission to use, copy, modify, and distribute this software and
   5  * its documentation for any purpose and without fee is hereby
   6  * granted, provided that both the above copyright notice and this
   7  * permission notice appear in all copies, that both the above
   8  * copyright notice and this permission notice appear in all
   9  * supporting documentation, and that the name of M.I.T. not be used
  10  * in advertising or publicity pertaining to distribution of the
  11  * software without specific, written prior permission.  M.I.T. makes
  12  * no representations about the suitability of this software for any
  13  * purpose.  It is provided "as is" without express or implied
  14  * warranty.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
  17  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
  18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
  20  * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  23  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  25  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  26  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * $FreeBSD: src/sys/net/if_vlan_var.h,v 1.5.2.3 2001/12/04 20:01:54 brooks Exp $
  30  * $DragonFly: src/sys/net/vlan/if_vlan_var.h,v 1.4 2008/03/10 10:47:57 sephe Exp $
  31  */
  32
  33 #ifndef _NET_IF_VLAN_VAR_H_
  34 #define _NET_IF_VLAN_VAR_H_
  35
  36 struct  ether_vlan_header {
  37         u_char  evl_dhost[ETHER_ADDR_LEN];
  38         u_char  evl_shost[ETHER_ADDR_LEN];
  39         u_int16_t evl_encap_proto;
  40         u_int16_t evl_tag;
  41         u_int16_t evl_proto;
  42 };
  43
  44 #define EVL_VLANOFTAG(tag) ((tag) & 4095)
  45 #define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7)
  46 #define EVL_ENCAPLEN    4       /* length in octets of encapsulation */
  47
  48 /* sysctl(3) tags, for compatibility purposes */
  49 #define VLANCTL_PROTO   1
  50 #define VLANCTL_MAX     2
  51
  52 /*
  53  * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls.
  54  */
  55 struct  vlanreq {
  56         char    vlr_parent[IFNAMSIZ];
  57         u_short vlr_tag;
  58 };
  59 #define SIOCSETVLAN     SIOCSIFGENERIC
  60 #define SIOCGETVLAN     SIOCGIFGENERIC
  61
  62 #endif /* _NET_IF_VLAN_VAR_H_ */