xref: /dragonfly/sys/net/tun/if_tunvar.h (revision 925b0cbfbfed7123f1222f6b5650b7747937015d)
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