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Annotation of XNU/bsd/net/if_tun.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*     $NetBSD: if_tun.h,v 1.5 1994/06/29 06:36:27 cgd Exp $   */
        !            23: 
        !            24: /*
        !            25:  * Copyright (c) 1988, Julian Onions <[email protected]>
        !            26:  * Nottingham University 1987.
        !            27:  *
        !            28:  * This source may be freely distributed, however I would be interested
        !            29:  * in any changes that are made.
        !            30:  *
        !            31:  * This driver takes packets off the IP i/f and hands them up to a
        !            32:  * user process to have its wicked way with. This driver has it's
        !            33:  * roots in a similar driver written by Phil Cockcroft (formerly) at
        !            34:  * UCL. This driver is based much more on read/write/select mode of
        !            35:  * operation though.
        !            36:  *
        !            37:  */
        !            38: 
        !            39: #ifndef _NET_IF_TUN_H_
        !            40: #define _NET_IF_TUN_H_
        !            41: 
        !            42: /* Refer to if_tunvar.h for the softc stuff */
        !            43: 
        !            44: /* Maximum transmit packet size (default) */
        !            45: #define        TUNMTU          1500
        !            46: 
        !            47: /* Maximum receive packet size (hard limit) */
        !            48: #define        TUNMRU          16384
        !            49: 
        !            50: struct tuninfo {
        !            51:        int     baudrate;               /* linespeed */
        !            52:        short   mtu;                    /* maximum transmission unit */
        !            53:        u_char  type;                   /* ethernet, tokenring, etc. */
        !            54:        u_char  dummy;                  /* place holder */
        !            55: };
        !            56: 
        !            57: /* ioctl's for get/set debug */
        !            58: #define        TUNSDEBUG       _IOW('t', 90, int)
        !            59: #define        TUNGDEBUG       _IOR('t', 89, int)
        !            60: #define        TUNSIFINFO      _IOW('t', 91, struct tuninfo)
        !            61: #define        TUNGIFINFO      _IOR('t', 92, struct tuninfo)
        !            62: 
        !            63: #endif /* !_NET_IF_TUN_H_ */

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