1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB
5 * All rights reserved.
6 *
7 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer,
15 *    without modification.
16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
17 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
18 *    redistribution must be conditioned upon including a substantially
19 *    similar Disclaimer requirement for further binary redistribution.
20 *
21 * NO WARRANTY
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
25 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
26 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
27 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
30 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGES.
33 *
34 * $FreeBSD$
35 */
36
37#ifndef	__DEV_WTAP_MEDIUM_H__
38#define	__DEV_WTAP_MEDIUM_H__
39
40#include "if_wtapvar.h"
41#include "wtap_hal/handler.h"
42
43struct packet {
44	STAILQ_ENTRY(packet)	pf_list;
45	struct mbuf *		m;
46	int			id;
47};
48typedef STAILQ_HEAD(, packet) md_pkthead;
49
50struct wtap_medium {
51	struct mtx 			md_mtx;
52#if 0
53	int				visibility[MAX_NBR_WTAP];
54	struct stailhead 		*headp;
55	packet_head			pktbuf;
56	STAILQ_HEAD(stailhead, packet) pktbuf;
57	STAILQ_HEAD(stailhead, packet) pktbuf;
58	/* = STAILQ_HEAD_INITIALIZER(head); */
59#endif
60	/* 0 means we drop packets, 1 we queue them */
61	int				open;
62	md_pkthead			md_pktbuf;	/* master queue */
63	struct eventhandler		*tx_handler;
64	struct timehandler		*bc_handler;
65};
66
67extern	void init_medium(struct wtap_medium *);
68extern	void deinit_medium(struct wtap_medium *);
69extern	void medium_open(struct wtap_medium *);
70extern	void medium_close(struct wtap_medium *);
71extern	int medium_transmit(struct wtap_medium *, int id, struct mbuf*);
72extern	struct packet *medium_get_next_packet(struct wtap_medium *);
73
74#endif	/* __DEV_WTAP_MEDIUM_H__ */
75