The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/bsd/net/if_tun.h

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    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 /*      $NetBSD: if_tun.h,v 1.5 1994/06/29 06:36:27 cgd Exp $   */
   26 
   27 /*
   28  * Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
   29  * Nottingham University 1987.
   30  *
   31  * This source may be freely distributed, however I would be interested
   32  * in any changes that are made.
   33  *
   34  * This driver takes packets off the IP i/f and hands them up to a
   35  * user process to have its wicked way with. This driver has it's
   36  * roots in a similar driver written by Phil Cockcroft (formerly) at
   37  * UCL. This driver is based much more on read/write/select mode of
   38  * operation though.
   39  *
   40  */
   41 
   42 #ifndef _NET_IF_TUN_H_
   43 #define _NET_IF_TUN_H_
   44 #include <sys/appleapiopts.h>
   45 #ifdef __APPLE_API_PRIVATE
   46 
   47 /* Refer to if_tunvar.h for the softc stuff */
   48 
   49 /* Maximum transmit packet size (default) */
   50 #define TUNMTU          1500
   51 
   52 /* Maximum receive packet size (hard limit) */
   53 #define TUNMRU          16384
   54 
   55 struct tuninfo {
   56         int     baudrate;               /* linespeed */
   57         short   mtu;                    /* maximum transmission unit */
   58         u_char  type;                   /* ethernet, tokenring, etc. */
   59         u_char  dummy;                  /* place holder */
   60 };
   61 
   62 /* ioctl's for get/set debug */
   63 #define TUNSDEBUG       _IOW('t', 90, int)
   64 #define TUNGDEBUG       _IOR('t', 89, int)
   65 #define TUNSIFINFO      _IOW('t', 91, struct tuninfo)
   66 #define TUNGIFINFO      _IOR('t', 92, struct tuninfo)
   67 
   68 #endif /* __APPLE_API_PRIVATE */
   69 #endif /* !_NET_IF_TUN_H_ */

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