[apple/xnu.git] / bsd / netinet / if_tun.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */
/*
 * Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
 * Nottingham University 1987.
 *
 * This source may be freely distributed, however I would be interested
 * in any changes that are made.
 *
 * This driver takes packets off the IP i/f and hands them up to a
 * user process to have it's wicked way with. This driver has it's
 * roots in a similar driver written by Phil Cockcroft (formerly) at
 * UCL. This driver is based much more on read/write/select mode of
 * operation though.
 *
 */

#ifndef _NET_IF_TUN_H_
#define _NET_IF_TUN_H_
#include <sys/appleapiopts.h>

#ifdef KERNEL_PRIVATE
struct tun_softc {
	u_short	tun_flags;		/* misc flags */
#define	TUN_OPEN	0x0001
#define	TUN_INITED	0x0002
#define	TUN_RCOLL	0x0004
#define	TUN_IASET	0x0008
#define	TUN_DSTADDR	0x0010
#define	TUN_RWAIT	0x0040
#define	TUN_ASYNC	0x0080
#define	TUN_NBIO	0x0100

#define	TUN_READY	(TUN_OPEN | TUN_INITED | TUN_IASET)

	struct	ifnet tun_if;		/* the interface */
	int	tun_pgrp;		/* the process group - if any */
	struct	selinfo	tun_rsel;	/* read select */
	struct	selinfo	tun_wsel;	/* write select (not used) */
#if NBPFILTER > 0
	caddr_t		tun_bpf;
#endif
};

#endif /* KERNEL_PRIVATE */

/* ioctl's for get/set debug */
#define	TUNSDEBUG	_IOW('t', 90, int)
#define	TUNGDEBUG	_IOR('t', 89, int)

/* Maximum packet size */
#define	TUNMTU		1500

#endif /* !_NET_IF_TUN_H_ */
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
5d5c5d0d A	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	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.
8f6c56a5	14	*
2d21ac55 A	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
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	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.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	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_
9bccf70c	46	#include <sys/appleapiopts.h>
1c79356b	47
91447636	48	#ifdef KERNEL_PRIVATE
1c79356b A	49	struct 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
b0d623f7	71	#endif /* KERNEL_PRIVATE */
1c79356b A	72
	73	/* ioctl's for get/set debug */
	74	#define TUNSDEBUG _IOW('t', 90, int)
	75	#define TUNGDEBUG _IOR('t', 89, int)
	76
91447636 A	77	/* Maximum packet size */
	78	#define TUNMTU 1500
	79
1c79356b	80	#endif /* !_NET_IF_TUN_H_ */