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

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */
        !            26: /*
        !            27:  * Copyright (c) 1988, Julian Onions <[email protected]>
        !            28:  * Nottingham University 1987.
        !            29:  *
        !            30:  * This source may be freely distributed, however I would be interested
        !            31:  * in any changes that are made.
        !            32:  *
        !            33:  * This driver takes packets off the IP i/f and hands them up to a
        !            34:  * user process to have it's wicked way with. This driver has it's
        !            35:  * roots in a similar driver written by Phil Cockcroft (formerly) at
        !            36:  * UCL. This driver is based much more on read/write/select mode of
        !            37:  * operation though.
        !            38:  *
        !            39:  */
        !            40: 
        !            41: #ifndef _NET_IF_TUN_H_
        !            42: #define _NET_IF_TUN_H_
        !            43: 
        !            44: struct tun_softc {
        !            45:        u_short tun_flags;              /* misc flags */
        !            46: #define        TUN_OPEN        0x0001
        !            47: #define        TUN_INITED      0x0002
        !            48: #define        TUN_RCOLL       0x0004
        !            49: #define        TUN_IASET       0x0008
        !            50: #define        TUN_DSTADDR     0x0010
        !            51: #define        TUN_RWAIT       0x0040
        !            52: #define        TUN_ASYNC       0x0080
        !            53: #define        TUN_NBIO        0x0100
        !            54: 
        !            55: #define        TUN_READY       (TUN_OPEN | TUN_INITED | TUN_IASET)
        !            56: 
        !            57:        struct  ifnet tun_if;           /* the interface */
        !            58:        int     tun_pgrp;               /* the process group - if any */
        !            59:        struct  selinfo tun_rsel;       /* read select */
        !            60:        struct  selinfo tun_wsel;       /* write select (not used) */
        !            61: #if NBPFILTER > 0
        !            62:        caddr_t         tun_bpf;
        !            63: #endif
        !            64: };
        !            65: 
        !            66: /* Maximum packet size */
        !            67: #define        TUNMTU          1500
        !            68: 
        !            69: /* ioctl's for get/set debug */
        !            70: #define        TUNSDEBUG       _IOW('t', 90, int)
        !            71: #define        TUNGDEBUG       _IOR('t', 89, int)
        !            72: 
        !            73: #endif /* !_NET_IF_TUN_H_ */

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