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1c79356b 1/*
5d5c5d0d
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2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
8ad349bb 4 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
1c79356b 5 *
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6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the
10 * License may not be used to create, or enable the creation or
11 * redistribution of, unlawful or unlicensed copies of an Apple operating
12 * system, or to circumvent, violate, or enable the circumvention or
13 * violation of, any terms of an Apple operating system software license
14 * agreement.
15 *
16 * Please obtain a copy of the License at
17 * http://www.opensource.apple.com/apsl/ and read it before using this
18 * file.
19 *
20 * The Original Code and all software distributed under the License are
21 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
22 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
23 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
25 * Please see the License for the specific language governing rights and
26 * limitations under the License.
27 *
28 * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
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29 */
30/* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */
31/*
32 * Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
33 * Nottingham University 1987.
34 *
35 * This source may be freely distributed, however I would be interested
36 * in any changes that are made.
37 *
38 * This driver takes packets off the IP i/f and hands them up to a
39 * user process to have it's wicked way with. This driver has it's
40 * roots in a similar driver written by Phil Cockcroft (formerly) at
41 * UCL. This driver is based much more on read/write/select mode of
42 * operation though.
43 *
44 */
45
46#ifndef _NET_IF_TUN_H_
47#define _NET_IF_TUN_H_
9bccf70c 48#include <sys/appleapiopts.h>
1c79356b 49
91447636 50#ifdef KERNEL_PRIVATE
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51struct tun_softc {
52 u_short tun_flags; /* misc flags */
53#define TUN_OPEN 0x0001
54#define TUN_INITED 0x0002
55#define TUN_RCOLL 0x0004
56#define TUN_IASET 0x0008
57#define TUN_DSTADDR 0x0010
58#define TUN_RWAIT 0x0040
59#define TUN_ASYNC 0x0080
60#define TUN_NBIO 0x0100
61
62#define TUN_READY (TUN_OPEN | TUN_INITED | TUN_IASET)
63
64 struct ifnet tun_if; /* the interface */
65 int tun_pgrp; /* the process group - if any */
66 struct selinfo tun_rsel; /* read select */
67 struct selinfo tun_wsel; /* write select (not used) */
68#if NBPFILTER > 0
69 caddr_t tun_bpf;
70#endif
71};
72
91447636 73#endif KERNEL_PRIVATE
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74
75/* ioctl's for get/set debug */
76#define TUNSDEBUG _IOW('t', 90, int)
77#define TUNGDEBUG _IOR('t', 89, int)
78
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79/* Maximum packet size */
80#define TUNMTU 1500
81
1c79356b 82#endif /* !_NET_IF_TUN_H_ */