FreeBSD/Linux Kernel Cross Reference
sys/net/if_tapvar.h
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (C) 1999-2000 by Maksim Yevmenkin <m_evmenkin@yahoo.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * BASED ON:
29 * -------------------------------------------------------------------------
30 *
31 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org>
32 * All rights reserved.
33 *
34 * Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
35 * Nottingham University 1987.
36 */
37
38 /*
39 * $FreeBSD: releng/12.0/sys/net/if_tapvar.h 326272 2017-11-27 15:23:17Z pfg $
40 * $Id: if_tapvar.h,v 0.6 2000/07/11 02:16:08 max Exp $
41 */
42
43 #ifndef _NET_IF_TAPVAR_H_
44 #define _NET_IF_TAPVAR_H_
45
46 /*
47 * tap_mtx locks tap_flags, tap_pid. tap_next locked with global tapmtx.
48 * Other fields locked by owning subsystems.
49 */
50 struct tap_softc {
51 struct ifnet *tap_ifp;
52 u_short tap_flags; /* misc flags */
53 #define TAP_OPEN (1 << 0)
54 #define TAP_INITED (1 << 1)
55 #define TAP_RWAIT (1 << 2)
56 #define TAP_ASYNC (1 << 3)
57 #define TAP_READY (TAP_OPEN|TAP_INITED)
58 #define TAP_VMNET (1 << 4)
59
60 u_int8_t ether_addr[ETHER_ADDR_LEN]; /* ether addr of the remote side */
61
62 pid_t tap_pid; /* PID of process to open */
63 struct sigio *tap_sigio; /* information for async I/O */
64 struct selinfo tap_rsel; /* read select */
65
66 SLIST_ENTRY(tap_softc) tap_next; /* next device in chain */
67 struct cdev *tap_dev;
68 struct mtx tap_mtx; /* per-softc mutex */
69 };
70
71 #endif /* !_NET_IF_TAPVAR_H_ */
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