xref: /dragonfly/sys/net/tap/if_tapvar.h (revision b2bc15c2)
1 /*
2  * Copyright (C) 1999-2000 by Maksim Yevmenkin <m_evmenkin@yahoo.com>
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  * BASED ON:
27  * -------------------------------------------------------------------------
28  *
29  * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
30  * All rights reserved.
31  *
32  * Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
33  * Nottingham University 1987.
34  */
35 
36 /*
37  * $FreeBSD: src/sys/net/if_tapvar.h,v 1.3.2.1 2000/07/27 13:57:05 nsayer Exp $
38  * $Id: if_tapvar.h,v 0.6 2000/07/11 02:16:08 max Exp $
39  */
40 
41 #ifndef _NET_IF_TAPVAR_H_
42 #define _NET_IF_TAPVAR_H_
43 
44 struct tap_softc {
45 	struct arpcom	arpcom;		/* ethernet common data */
46 #define tap_if		arpcom.ac_if
47 	cdev_t		tap_dev;	/* device */
48 
49 	u_short		tap_flags;	/* misc flags */
50 #define	TAP_OPEN	(1 << 0)
51 #define	TAP_INITED	(1 << 1)
52 #define	TAP_RWAIT	(1 << 2)
53 #define	TAP_ASYNC	(1 << 3)
54 #define	TAP_CLONE	(1 << 4)
55 #define	TAP_CLOSEDOWN	(1 << 5)
56 #define	TAP_MANUALMAKE	(1 << 6)
57 #define	TAP_READY	(TAP_OPEN | TAP_INITED)
58 
59 	uint8_t 	 ether_addr[ETHER_ADDR_LEN];
60 				/* ether addr of the remote side */
61 	struct sigio	*tap_sigtd;	/* track process owning tap */
62 	struct sigio	*tap_sigio;	/* information for async I/O */
63 	struct kqinfo	 tap_rkq;	/* read select/poll/kq */
64 	struct ifqueue	 tap_devq;
65 
66 	SLIST_ENTRY(tap_softc)	tap_link;	/* local tap list */
67 };
68 
69 #endif /* !_NET_IF_TAPVAR_H_ */
70