bsd/net/if_vlan_var.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright 1998 Massachusetts Institute of Technology
  27  *
  28  * Permission to use, copy, modify, and distribute this software and
  29  * its documentation for any purpose and without fee is hereby
  30  * granted, provided that both the above copyright notice and this
  31  * permission notice appear in all copies, that both the above
  32  * copyright notice and this permission notice appear in all
  33  * supporting documentation, and that the name of M.I.T. not be used
  34  * in advertising or publicity pertaining to distribution of the
  35  * software without specific, written prior permission.  M.I.T. makes
  36  * no representations about the suitability of this software for any
  37  * purpose.  It is provided "as is" without express or implied
  38  * warranty.
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
  41  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
  42  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  43  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
  44  * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  46  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  47  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  48  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  49  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  50  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  */
  54
  55 #ifndef _NET_IF_VLAN_VAR_H_
  56 #define _NET_IF_VLAN_VAR_H_     1
  57 #include <sys/appleapiopts.h>
  58
  59 #ifdef __APPLE_API_PRIVATE
  60 #ifdef KERNEL
  61 struct  ifvlan {
  62         struct  arpcom ifv_ac;  /* make this an interface */
  63         struct  ifnet *ifv_p;   /* parent inteface of this vlan */
  64         struct  ifv_linkmib {
  65                 int     ifvm_parent;
  66                 u_int16_t ifvm_proto; /* encapsulation ethertype */
  67                 u_int16_t ifvm_tag; /* tag to apply on packets leaving if */
  68         }       ifv_mib;
  69 };
  70 #define ifv_if  ifv_ac.ac_if
  71 #define ifv_tag ifv_mib.ifvm_tag
  72 #endif /* KERNEL */
  73
  74 struct  ether_vlan_header {
  75         u_char  evl_dhost[ETHER_ADDR_LEN];
  76         u_char  evl_shost[ETHER_ADDR_LEN];
  77         u_int16_t evl_encap_proto;
  78         u_int16_t evl_tag;
  79         u_int16_t evl_proto;
  80 };
  81
  82 #define EVL_VLANOFTAG(tag) ((tag) & 4095)
  83 #define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7)
  84 #define EVL_ENCAPLEN    4       /* length in octets of encapsulation */
  85
  86 /* When these sorts of interfaces get their own identifier... */
  87 #define IFT_8021_VLAN   IFT_PROPVIRTUAL
  88
  89 /* sysctl(3) tags, for compatibility purposes */
  90 #define VLANCTL_PROTO   1
  91 #define VLANCTL_MAX     2
  92
  93 /*
  94  * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls.
  95  */
  96 struct  vlanreq {
  97         char    vlr_parent[IFNAMSIZ];
  98         u_short vlr_tag;
  99 };
 100 #define SIOCSETVLAN     SIOCSIFGENERIC
 101 #define SIOCGETVLAN     SIOCGIFGENERIC
 102
 103 #ifdef KERNEL
 104 /* shared with if_ethersubr.c: */
 105 extern  u_int vlan_proto;
 106 extern  int vlan_input(struct ether_header *eh, struct mbuf *m);
 107 #endif
 108
 109 #endif /* __APPLE_API_PRIVATE */
 110 #endif /* _NET_IF_VLAN_VAR_H_ */