sys/net/tap/if_tap.h

   1 /*
   2  * Copyright (C) 1999-2000 by Maksim Yevmenkin <m_evmenkin@yahoo.com>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * BASED ON:
  27  * -------------------------------------------------------------------------
  28  *
  29  * Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
  30  * Nottingham University 1987.
  31  */
  32
  33 /*
  34  * $FreeBSD: src/sys/net/if_tap.h,v 1.1.2.1 2000/07/27 13:57:05 nsayer Exp $
  35  * $Id: if_tap.h,v 0.7 2000/07/12 04:12:51 max Exp $
  36  */
  37
  38 #ifndef _NET_IF_TAP_H_
  39 #define _NET_IF_TAP_H_
  40
  41 #include <sys/ioccom.h>
  42
  43 /* maximum receive packet size (hard limit) */
  44 #define TAPMRU          16384
  45
  46 struct tapinfo {
  47         int     baudrate;       /* linespeed */
  48         short   mtu;            /* maximum transmission unit */
  49         u_char  type;           /* IFT_ETHER only */
  50         u_char  dummy;          /* place holder */
  51 };
  52
  53 /* get/set internal debug variable */
  54 #define TAPGDEBUG               _IOR('t', 89, int)
  55 #define TAPSDEBUG               _IOW('t', 90, int)
  56 /* get/set network interface information */
  57 #define TAPSIFINFO              _IOW('t', 91, struct tapinfo)
  58 #define TAPGIFINFO              _IOR('t', 92, struct tapinfo)
  59 /* get the network interface name */
  60 #define TAPGIFNAME              _IOR('t', 93, struct ifreq)
  61
  62 #endif /* !_NET_IF_TAP_H_ */