xref: /dragonfly/sys/net/tun/if_tunvar.h (revision d8082429)
1 /*-
2  * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/net/if_tunvar.h,v 1.7 2000/01/23 01:47:12 brian Exp $
27  */
28 
29 #ifndef _NET_IF_TUNVAR_H_
30 #define _NET_IF_TUNVAR_H_
31 
32 struct tun_softc {
33 	cdev_t		tun_dev;	/* device */
34 
35 	u_short		tun_flags;	/* misc flags */
36 #define	TUN_OPEN	0x0001
37 #define	TUN_INITED	0x0002
38 #define	TUN_RCOLL	0x0004
39 #define	TUN_IASET	0x0008
40 #define	TUN_DSTADDR	0x0010		/* unused */
41 #define	TUN_LMODE	0x0020
42 #define	TUN_RWAIT	0x0040
43 #define	TUN_ASYNC	0x0080
44 #define	TUN_IFHEAD	0x0100
45 #define	TUN_CLONE	0x0200
46 #define	TUN_MANUALMAKE	0x0400
47 #define	TUN_READY	(TUN_OPEN | TUN_INITED)
48 
49 	pid_t		 tun_pid;	/* PID of process to open */
50 	struct ifnet	*tun_ifp;	/* the interface */
51 	struct sigio	*tun_sigio;	/* information for async I/O */
52 	struct kqinfo	 tun_rkq;	/* read select/poll/kq */
53 	struct kqinfo	 tun_wkq;	/* write select/poll/kq (not used) */
54 
55 	SLIST_ENTRY(tun_softc)	tun_link;	/* local tun list */
56 };
57 
58 #endif /* !_NET_IF_TUNVAR_H_ */
59