1/*
2 * bluetooth.h
3 */
4
5/*-
6 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
7 *
8 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $Id: ng_bluetooth.h,v 1.4 2003/04/26 22:32:34 max Exp $
33 * $FreeBSD$
34 */
35
36#ifndef _NETGRAPH_BLUETOOTH_H_
37#define _NETGRAPH_BLUETOOTH_H_
38
39#include <sys/queue.h>
40
41/*
42 * Version of the stack
43 */
44
45#define NG_BLUETOOTH_VERSION	1
46
47/*
48 * Declare the base of the Bluetooth sysctl hierarchy,
49 * but only if this file cares about sysctl's
50 */
51
52#ifdef SYSCTL_DECL
53SYSCTL_DECL(_net_bluetooth);
54SYSCTL_DECL(_net_bluetooth_hci);
55SYSCTL_DECL(_net_bluetooth_l2cap);
56SYSCTL_DECL(_net_bluetooth_rfcomm);
57SYSCTL_DECL(_net_bluetooth_sco);
58#endif /* SYSCTL_DECL */
59
60/*
61 * Mbuf qeueue and useful mbufq macros. We do not use ifqueue because we
62 * do not need mutex and other locking stuff
63 */
64
65struct mbuf;
66
67struct ng_bt_mbufq {
68	struct mbuf	*head;   /* first item in the queue */
69	struct mbuf	*tail;   /* last item in the queue */
70	u_int32_t	 len;    /* number of items in the queue */
71	u_int32_t	 maxlen; /* maximal number of items in the queue */
72	u_int32_t	 drops;	 /* number if dropped items */
73};
74typedef struct ng_bt_mbufq	ng_bt_mbufq_t;
75typedef struct ng_bt_mbufq *	ng_bt_mbufq_p;
76
77#define NG_BT_MBUFQ_INIT(q, _maxlen)			\
78	do {						\
79		(q)->head = NULL;			\
80		(q)->tail = NULL;			\
81		(q)->len = 0;				\
82		(q)->maxlen = (_maxlen);		\
83		(q)->drops = 0;				\
84	} while (0)
85
86#define NG_BT_MBUFQ_DESTROY(q)				\
87	do {						\
88		NG_BT_MBUFQ_DRAIN((q));			\
89	} while (0)
90
91#define NG_BT_MBUFQ_FIRST(q)	(q)->head
92
93#define NG_BT_MBUFQ_LEN(q)	(q)->len
94
95#define NG_BT_MBUFQ_FULL(q)	((q)->len >= (q)->maxlen)
96
97#define NG_BT_MBUFQ_DROP(q)	(q)->drops ++
98
99#define NG_BT_MBUFQ_ENQUEUE(q, i)			\
100	do {						\
101		(i)->m_nextpkt = NULL;			\
102							\
103		if ((q)->tail == NULL)			\
104			(q)->head = (i);		\
105		else					\
106			(q)->tail->m_nextpkt = (i);	\
107							\
108		(q)->tail = (i);			\
109		(q)->len ++;				\
110	} while (0)
111
112#define NG_BT_MBUFQ_DEQUEUE(q, i)			\
113	do {						\
114		(i) = (q)->head;			\
115		if ((i) != NULL) {			\
116			(q)->head = (q)->head->m_nextpkt; \
117			if ((q)->head == NULL)		\
118				(q)->tail = NULL;	\
119							\
120			(q)->len --;			\
121			(i)->m_nextpkt = NULL;		\
122		} 					\
123	} while (0)
124
125#define NG_BT_MBUFQ_PREPEND(q, i)			\
126	do {						\
127		(i)->m_nextpkt = (q)->head;		\
128		if ((q)->tail == NULL)			\
129			(q)->tail = (i);		\
130							\
131		(q)->head = (i);			\
132		(q)->len ++;				\
133	} while (0)
134
135#define NG_BT_MBUFQ_DRAIN(q)				\
136	do { 						\
137        	struct mbuf	*m = NULL;		\
138							\
139		for (;;) { 				\
140			NG_BT_MBUFQ_DEQUEUE((q), m);	\
141			if (m == NULL) 			\
142				break; 			\
143							\
144			NG_FREE_M(m);	 		\
145		} 					\
146	} while (0)
147
148/*
149 * Netgraph item queue and useful itemq macros
150 */
151
152struct ng_item;
153
154struct ng_bt_itemq {
155	STAILQ_HEAD(, ng_item)	queue;	/* actually items queue */
156	u_int32_t	 len;    /* number of items in the queue */
157	u_int32_t	 maxlen; /* maximal number of items in the queue */
158	u_int32_t	 drops;  /* number if dropped items */
159};
160typedef struct ng_bt_itemq	ng_bt_itemq_t;
161typedef struct ng_bt_itemq *	ng_bt_itemq_p;
162
163#define NG_BT_ITEMQ_INIT(q, _maxlen)			\
164	do {						\
165		STAILQ_INIT(&(q)->queue);		\
166		(q)->len = 0;				\
167		(q)->maxlen = (_maxlen);		\
168		(q)->drops = 0;				\
169	} while (0)
170
171#define NG_BT_ITEMQ_DESTROY(q)				\
172	do {						\
173		NG_BT_ITEMQ_DRAIN((q));			\
174	} while (0)
175
176#define NG_BT_ITEMQ_FIRST(q)	STAILQ_FIRST(&(q)->queue)
177
178#define NG_BT_ITEMQ_LEN(q)	NG_BT_MBUFQ_LEN((q))
179
180#define NG_BT_ITEMQ_FULL(q)	NG_BT_MBUFQ_FULL((q))
181
182#define NG_BT_ITEMQ_DROP(q)	NG_BT_MBUFQ_DROP((q))
183
184#define NG_BT_ITEMQ_ENQUEUE(q, i)			\
185	do {						\
186		STAILQ_INSERT_TAIL(&(q)->queue, (i), el_next);	\
187		(q)->len ++;				\
188	} while (0)
189
190#define NG_BT_ITEMQ_DEQUEUE(q, i)			\
191	do {						\
192		(i) = STAILQ_FIRST(&(q)->queue);	\
193		if ((i) != NULL) {			\
194			STAILQ_REMOVE_HEAD(&(q)->queue, el_next);	\
195			(q)->len --;			\
196		} 					\
197	} while (0)
198
199#define NG_BT_ITEMQ_PREPEND(q, i)			\
200	do {						\
201		STAILQ_INSERT_HEAD(&(q)->queue, (i), el_next);	\
202		(q)->len ++;				\
203	} while (0)
204
205#define NG_BT_ITEMQ_DRAIN(q)				\
206	do { 						\
207        	struct ng_item	*i = NULL;		\
208							\
209		for (;;) { 				\
210			NG_BT_ITEMQ_DEQUEUE((q), i);	\
211			if (i == NULL) 			\
212				break; 			\
213							\
214			NG_FREE_ITEM(i); 		\
215		} 					\
216	} while (0)
217
218/*
219 * Get Bluetooth stack sysctl globals
220 */
221
222u_int32_t	bluetooth_hci_command_timeout	(void);
223u_int32_t	bluetooth_hci_connect_timeout	(void);
224u_int32_t	bluetooth_hci_max_neighbor_age	(void);
225u_int32_t	bluetooth_l2cap_rtx_timeout	(void);
226u_int32_t	bluetooth_l2cap_ertx_timeout	(void);
227u_int32_t      bluetooth_sco_rtx_timeout       (void);
228
229#define BDADDR_BREDR 0
230#define BDADDR_LE_PUBLIC 1
231#define BDADDR_LE_RANDOM 2
232
233#endif /* _NETGRAPH_BLUETOOTH_H_ */
234
235