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