1/*
2 * bluetooth.c
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.c,v 1.3 2003/04/26 22:37:31 max Exp $
33 * $FreeBSD$
34 */
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/errno.h>
39#include <sys/kernel.h>
40#include <sys/module.h>
41#include <sys/sysctl.h>
42
43#include <netgraph/bluetooth/include/ng_bluetooth.h>
44
45/*
46 * Bluetooth stack sysctl globals
47 */
48
49static u_int32_t	bluetooth_hci_command_timeout_value  = 5;   /* sec */
50static u_int32_t	bluetooth_hci_connect_timeout_value  = 60;  /* sec */
51static u_int32_t	bluetooth_hci_max_neighbor_age_value = 600; /* sec */
52static u_int32_t	bluetooth_l2cap_rtx_timeout_value    = 60;  /* sec */
53static u_int32_t	bluetooth_l2cap_ertx_timeout_value   = 300; /* sec */
54static u_int32_t	bluetooth_sco_rtx_timeout_value      = 60;  /* sec */
55
56/*
57 * Define sysctl tree that shared by other parts of Bluetooth stack
58 */
59
60SYSCTL_NODE(_net, OID_AUTO, bluetooth, CTLFLAG_RW, 0, "Bluetooth family");
61SYSCTL_INT(_net_bluetooth, OID_AUTO, version,
62	CTLFLAG_RD, SYSCTL_NULL_INT_PTR, NG_BLUETOOTH_VERSION, "Version of the stack");
63
64/*
65 * HCI
66 */
67
68SYSCTL_NODE(_net_bluetooth, OID_AUTO, hci, CTLFLAG_RW,
69	0, "Bluetooth HCI family");
70
71static int
72bluetooth_set_hci_command_timeout_value(SYSCTL_HANDLER_ARGS)
73{
74	u_int32_t	value;
75	int		error;
76
77	value = bluetooth_hci_command_timeout_value;
78	error = sysctl_handle_int(oidp, &value, 0, req);
79	if (error == 0 && req->newptr != NULL) {
80		if (value > 0)
81			bluetooth_hci_command_timeout_value = value;
82		else
83			error = EINVAL;
84	}
85
86	return (error);
87} /* bluetooth_set_hci_command_timeout_value */
88
89SYSCTL_PROC(_net_bluetooth_hci, OID_AUTO, command_timeout,
90	CTLTYPE_INT | CTLFLAG_RW,
91	&bluetooth_hci_command_timeout_value, 5,
92	bluetooth_set_hci_command_timeout_value,
93	"I", "HCI command timeout (sec)");
94
95static int
96bluetooth_set_hci_connect_timeout_value(SYSCTL_HANDLER_ARGS)
97{
98	u_int32_t	value;
99	int		error;
100
101	value = bluetooth_hci_connect_timeout_value;
102	error = sysctl_handle_int(oidp, &value, 0, req);
103	if (error == 0 && req->newptr != NULL) {
104		if (0 < value && value <= bluetooth_l2cap_rtx_timeout_value)
105			bluetooth_hci_connect_timeout_value = value;
106		else
107			error = EINVAL;
108	}
109
110	return (error);
111} /* bluetooth_set_hci_connect_timeout_value */
112
113SYSCTL_PROC(_net_bluetooth_hci, OID_AUTO, connection_timeout,
114	CTLTYPE_INT | CTLFLAG_RW,
115	&bluetooth_hci_connect_timeout_value, 60,
116	bluetooth_set_hci_connect_timeout_value,
117	"I", "HCI connect timeout (sec)");
118
119SYSCTL_UINT(_net_bluetooth_hci, OID_AUTO, max_neighbor_age, CTLFLAG_RW,
120	&bluetooth_hci_max_neighbor_age_value, 600,
121	"Maximal HCI neighbor cache entry age (sec)");
122
123/*
124 * L2CAP
125 */
126
127SYSCTL_NODE(_net_bluetooth, OID_AUTO, l2cap, CTLFLAG_RW,
128	0, "Bluetooth L2CAP family");
129
130static int
131bluetooth_set_l2cap_rtx_timeout_value(SYSCTL_HANDLER_ARGS)
132{
133	u_int32_t	value;
134	int		error;
135
136	value = bluetooth_l2cap_rtx_timeout_value;
137	error = sysctl_handle_int(oidp, &value, 0, req);
138	if (error == 0 && req->newptr != NULL) {
139		if (bluetooth_hci_connect_timeout_value <= value &&
140		    value <= bluetooth_l2cap_ertx_timeout_value)
141			bluetooth_l2cap_rtx_timeout_value = value;
142		else
143			error = EINVAL;
144	}
145
146	return (error);
147} /* bluetooth_set_l2cap_rtx_timeout_value */
148
149SYSCTL_PROC(_net_bluetooth_l2cap, OID_AUTO, rtx_timeout,
150	CTLTYPE_INT | CTLFLAG_RW,
151	&bluetooth_l2cap_rtx_timeout_value, 60,
152	bluetooth_set_l2cap_rtx_timeout_value,
153	"I", "L2CAP RTX timeout (sec)");
154
155static int
156bluetooth_set_l2cap_ertx_timeout_value(SYSCTL_HANDLER_ARGS)
157{
158	u_int32_t	value;
159	int		error;
160
161	value = bluetooth_l2cap_ertx_timeout_value;
162	error = sysctl_handle_int(oidp, &value, 0, req);
163	if (error == 0 && req->newptr != NULL) {
164		if (value >= bluetooth_l2cap_rtx_timeout_value)
165			bluetooth_l2cap_ertx_timeout_value = value;
166		else
167			error = EINVAL;
168	}
169
170	return (error);
171} /* bluetooth_set_l2cap_ertx_timeout_value */
172
173SYSCTL_PROC(_net_bluetooth_l2cap, OID_AUTO, ertx_timeout,
174	CTLTYPE_INT | CTLFLAG_RW,
175	&bluetooth_l2cap_ertx_timeout_value, 300,
176	bluetooth_set_l2cap_ertx_timeout_value,
177	"I", "L2CAP ERTX timeout (sec)");
178
179/*
180 * Return various sysctl values
181 */
182
183u_int32_t
184bluetooth_hci_command_timeout(void)
185{
186	return (bluetooth_hci_command_timeout_value * hz);
187} /* bluetooth_hci_command_timeout */
188
189u_int32_t
190bluetooth_hci_connect_timeout(void)
191{
192	return (bluetooth_hci_connect_timeout_value * hz);
193} /* bluetooth_hci_connect_timeout */
194
195u_int32_t
196bluetooth_hci_max_neighbor_age(void)
197{
198	return (bluetooth_hci_max_neighbor_age_value);
199} /* bluetooth_hci_max_neighbor_age */
200
201u_int32_t
202bluetooth_l2cap_rtx_timeout(void)
203{
204	return (bluetooth_l2cap_rtx_timeout_value * hz);
205} /* bluetooth_l2cap_rtx_timeout */
206
207u_int32_t
208bluetooth_l2cap_ertx_timeout(void)
209{
210	return (bluetooth_l2cap_ertx_timeout_value * hz);
211} /* bluetooth_l2cap_ertx_timeout */
212
213u_int32_t
214bluetooth_sco_rtx_timeout(void)
215{
216	return (bluetooth_sco_rtx_timeout_value * hz);
217} /* bluetooth_sco_rtx_timeout */
218
219/*
220 * RFCOMM
221 */
222
223SYSCTL_NODE(_net_bluetooth, OID_AUTO, rfcomm, CTLFLAG_RW,
224	0, "Bluetooth RFCOMM family");
225
226/*
227 * SCO
228 */
229
230SYSCTL_NODE(_net_bluetooth, OID_AUTO, sco, CTLFLAG_RW,
231	0, "Bluetooth SCO family");
232
233static int
234bluetooth_set_sco_rtx_timeout_value(SYSCTL_HANDLER_ARGS)
235{
236	u_int32_t	value;
237	int		error;
238
239	value = bluetooth_sco_rtx_timeout_value;
240	error = sysctl_handle_int(oidp, &value, 0, req);
241	if (error == 0 && req->newptr != NULL) {
242		if (bluetooth_hci_connect_timeout_value <= value)
243			bluetooth_sco_rtx_timeout_value = value;
244		else
245			error = EINVAL;
246	}
247
248	return (error);
249} /* bluetooth_set_sco_rtx_timeout_value */
250
251SYSCTL_PROC(_net_bluetooth_sco, OID_AUTO, rtx_timeout,
252	CTLTYPE_INT | CTLFLAG_RW,
253	&bluetooth_sco_rtx_timeout_value, 60,
254	bluetooth_set_sco_rtx_timeout_value,
255	"I", "SCO RTX timeout (sec)");
256
257/*
258 * Handle loading and unloading for this code.
259 */
260
261static int
262bluetooth_modevent(module_t mod, int event, void *data)
263{
264	int	error = 0;
265
266	switch (event) {
267	case MOD_LOAD:
268		break;
269
270	case MOD_UNLOAD:
271		break;
272
273	default:
274		error = EOPNOTSUPP;
275		break;
276	}
277
278	return (error);
279} /* bluetooth_modevent */
280
281/*
282 * Module
283 */
284
285static moduledata_t	bluetooth_mod = {
286	"ng_bluetooth",
287	bluetooth_modevent,
288	NULL
289};
290
291DECLARE_MODULE(ng_bluetooth, bluetooth_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
292MODULE_VERSION(ng_bluetooth, NG_BLUETOOTH_VERSION);
293
294