1 /*
2 * ng_btsocket.c
3 */
4
5 /*-
6 * SPDX-License-Identifier: BSD-2-Clause
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_btsocket.c,v 1.4 2003/09/14 23:29:06 max Exp $
33 */
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/bitstring.h>
38 #include <sys/errno.h>
39 #include <sys/domain.h>
40 #include <sys/kernel.h>
41 #include <sys/lock.h>
42 #include <sys/mbuf.h>
43 #include <sys/mutex.h>
44 #include <sys/protosw.h>
45 #include <sys/socket.h>
46 #include <sys/socketvar.h>
47 #include <sys/sysctl.h>
48 #include <sys/taskqueue.h>
49
50 #include <net/vnet.h>
51
52 #include <netgraph/ng_message.h>
53 #include <netgraph/netgraph.h>
54 #include <netgraph/bluetooth/include/ng_bluetooth.h>
55 #include <netgraph/bluetooth/include/ng_hci.h>
56 #include <netgraph/bluetooth/include/ng_l2cap.h>
57 #include <netgraph/bluetooth/include/ng_btsocket.h>
58 #include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h>
59 #include <netgraph/bluetooth/include/ng_btsocket_l2cap.h>
60 #include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h>
61 #include <netgraph/bluetooth/include/ng_btsocket_sco.h>
62
63 static int ng_btsocket_modevent (module_t, int, void *);
64 static struct domain ng_btsocket_domain;
65
66 /*
67 * Bluetooth raw HCI sockets
68 */
69
70 static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = {
71 .pru_abort = ng_btsocket_hci_raw_abort,
72 .pru_attach = ng_btsocket_hci_raw_attach,
73 .pru_bind = ng_btsocket_hci_raw_bind,
74 .pru_connect = ng_btsocket_hci_raw_connect,
75 .pru_control = ng_btsocket_hci_raw_control,
76 .pru_detach = ng_btsocket_hci_raw_detach,
77 .pru_disconnect = ng_btsocket_hci_raw_disconnect,
78 .pru_peeraddr = ng_btsocket_hci_raw_peeraddr,
79 .pru_send = ng_btsocket_hci_raw_send,
80 .pru_shutdown = NULL,
81 .pru_sockaddr = ng_btsocket_hci_raw_sockaddr,
82 .pru_close = ng_btsocket_hci_raw_close,
83 };
84
85 /*
86 * Bluetooth raw L2CAP sockets
87 */
88
89 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = {
90 .pru_abort = ng_btsocket_l2cap_raw_abort,
91 .pru_attach = ng_btsocket_l2cap_raw_attach,
92 .pru_bind = ng_btsocket_l2cap_raw_bind,
93 .pru_connect = ng_btsocket_l2cap_raw_connect,
94 .pru_control = ng_btsocket_l2cap_raw_control,
95 .pru_detach = ng_btsocket_l2cap_raw_detach,
96 .pru_disconnect = ng_btsocket_l2cap_raw_disconnect,
97 .pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr,
98 .pru_send = ng_btsocket_l2cap_raw_send,
99 .pru_shutdown = NULL,
100 .pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr,
101 .pru_close = ng_btsocket_l2cap_raw_close,
102 };
103
104 /*
105 * Bluetooth SEQPACKET L2CAP sockets
106 */
107
108 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = {
109 .pru_abort = ng_btsocket_l2cap_abort,
110 .pru_accept = ng_btsocket_l2cap_accept,
111 .pru_attach = ng_btsocket_l2cap_attach,
112 .pru_bind = ng_btsocket_l2cap_bind,
113 .pru_connect = ng_btsocket_l2cap_connect,
114 .pru_control = ng_btsocket_l2cap_control,
115 .pru_detach = ng_btsocket_l2cap_detach,
116 .pru_disconnect = ng_btsocket_l2cap_disconnect,
117 .pru_listen = ng_btsocket_l2cap_listen,
118 .pru_peeraddr = ng_btsocket_l2cap_peeraddr,
119 .pru_send = ng_btsocket_l2cap_send,
120 .pru_shutdown = NULL,
121 .pru_sockaddr = ng_btsocket_l2cap_sockaddr,
122 .pru_close = ng_btsocket_l2cap_close,
123 };
124
125 /*
126 * Bluetooth STREAM RFCOMM sockets
127 */
128
129 static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = {
130 .pru_abort = ng_btsocket_rfcomm_abort,
131 .pru_accept = ng_btsocket_rfcomm_accept,
132 .pru_attach = ng_btsocket_rfcomm_attach,
133 .pru_bind = ng_btsocket_rfcomm_bind,
134 .pru_connect = ng_btsocket_rfcomm_connect,
135 .pru_control = ng_btsocket_rfcomm_control,
136 .pru_detach = ng_btsocket_rfcomm_detach,
137 .pru_disconnect = ng_btsocket_rfcomm_disconnect,
138 .pru_listen = ng_btsocket_rfcomm_listen,
139 .pru_peeraddr = ng_btsocket_rfcomm_peeraddr,
140 .pru_send = ng_btsocket_rfcomm_send,
141 .pru_shutdown = NULL,
142 .pru_sockaddr = ng_btsocket_rfcomm_sockaddr,
143 .pru_close = ng_btsocket_rfcomm_close,
144 };
145
146 /*
147 * Bluetooth SEQPACKET SCO sockets
148 */
149
150 static struct pr_usrreqs ng_btsocket_sco_usrreqs = {
151 .pru_abort = ng_btsocket_sco_abort,
152 .pru_accept = ng_btsocket_sco_accept,
153 .pru_attach = ng_btsocket_sco_attach,
154 .pru_bind = ng_btsocket_sco_bind,
155 .pru_connect = ng_btsocket_sco_connect,
156 .pru_control = ng_btsocket_sco_control,
157 .pru_detach = ng_btsocket_sco_detach,
158 .pru_disconnect = ng_btsocket_sco_disconnect,
159 .pru_listen = ng_btsocket_sco_listen,
160 .pru_peeraddr = ng_btsocket_sco_peeraddr,
161 .pru_send = ng_btsocket_sco_send,
162 .pru_shutdown = NULL,
163 .pru_sockaddr = ng_btsocket_sco_sockaddr,
164 .pru_close = ng_btsocket_sco_close,
165 };
166
167 /*
168 * Definitions of protocols supported in the BLUETOOTH domain
169 */
170
171 static struct protosw ng_btsocket_protosw[] = {
172 {
173 .pr_type = SOCK_RAW,
174 .pr_domain = &ng_btsocket_domain,
175 .pr_protocol = BLUETOOTH_PROTO_HCI,
176 .pr_flags = PR_ATOMIC|PR_ADDR,
177 .pr_ctloutput = ng_btsocket_hci_raw_ctloutput,
178 .pr_init = ng_btsocket_hci_raw_init,
179 .pr_usrreqs = &ng_btsocket_hci_raw_usrreqs,
180 },
181 {
182 .pr_type = SOCK_RAW,
183 .pr_domain = &ng_btsocket_domain,
184 .pr_protocol = BLUETOOTH_PROTO_L2CAP,
185 .pr_flags = PR_ATOMIC|PR_ADDR,
186 .pr_init = ng_btsocket_l2cap_raw_init,
187 .pr_usrreqs = &ng_btsocket_l2cap_raw_usrreqs,
188 },
189 {
190 .pr_type = SOCK_SEQPACKET,
191 .pr_domain = &ng_btsocket_domain,
192 .pr_protocol = BLUETOOTH_PROTO_L2CAP,
193 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED,
194 .pr_ctloutput = ng_btsocket_l2cap_ctloutput,
195 .pr_init = ng_btsocket_l2cap_init,
196 .pr_usrreqs = &ng_btsocket_l2cap_usrreqs,
197 },
198 {
199 .pr_type = SOCK_STREAM,
200 .pr_domain = &ng_btsocket_domain,
201 .pr_protocol = BLUETOOTH_PROTO_RFCOMM,
202 .pr_flags = PR_CONNREQUIRED,
203 .pr_ctloutput = ng_btsocket_rfcomm_ctloutput,
204 .pr_init = ng_btsocket_rfcomm_init,
205 .pr_usrreqs = &ng_btsocket_rfcomm_usrreqs,
206 },
207 {
208 .pr_type = SOCK_SEQPACKET,
209 .pr_domain = &ng_btsocket_domain,
210 .pr_protocol = BLUETOOTH_PROTO_SCO,
211 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED,
212 .pr_ctloutput = ng_btsocket_sco_ctloutput,
213 .pr_init = ng_btsocket_sco_init,
214 .pr_usrreqs = &ng_btsocket_sco_usrreqs,
215 },
216 };
217
218 #define ng_btsocket_protosw_end \
219 &ng_btsocket_protosw[nitems(ng_btsocket_protosw)]
220
221 /*
222 * BLUETOOTH domain
223 */
224
225 static struct domain ng_btsocket_domain = {
226 .dom_family = AF_BLUETOOTH,
227 .dom_name = "bluetooth",
228 .dom_protosw = ng_btsocket_protosw,
229 .dom_protoswNPROTOSW = ng_btsocket_protosw_end
230 };
231
232 /*
233 * Socket sysctl tree
234 */
235
236 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets,
237 CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
238 "Bluetooth HCI sockets family");
239 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets,
240 CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
241 "Bluetooth L2CAP sockets family");
242 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets,
243 CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
244 "Bluetooth RFCOMM sockets family");
245 SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets,
246 CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
247 "Bluetooth SCO sockets family");
248
249 /*
250 * Module
251 */
252
253 static moduledata_t ng_btsocket_mod = {
254 "ng_btsocket",
255 ng_btsocket_modevent,
256 NULL
257 };
258
259 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN,
260 SI_ORDER_ANY);
261 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION);
262 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION,
263 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION);
264 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION,
265 NG_ABI_VERSION, NG_ABI_VERSION);
266
267 /*
268 * Handle loading and unloading for this node type.
269 * This is to handle auxiliary linkages (e.g protocol domain addition).
270 */
271
272 static int
ng_btsocket_modevent(module_t mod,int event,void * data)273 ng_btsocket_modevent(module_t mod, int event, void *data)
274 {
275 int error = 0;
276
277 switch (event) {
278 case MOD_LOAD:
279 break;
280
281 case MOD_UNLOAD:
282 /* XXX can't unload protocol domain yet */
283 error = EBUSY;
284 break;
285
286 default:
287 error = EOPNOTSUPP;
288 break;
289 }
290
291 return (error);
292 } /* ng_btsocket_modevent */
293
294 VNET_DOMAIN_SET(ng_btsocket_);
295