1 /*
2 * ng_btsocket.c
3 */
4
5 /*-
6 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
7 *
8 * Copyright (c) 2001-2002 Maksim Yevmenkin <[email protected]>
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 * $FreeBSD$
34 */
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/bitstring.h>
39 #include <sys/errno.h>
40 #include <sys/domain.h>
41 #include <sys/kernel.h>
42 #include <sys/lock.h>
43 #include <sys/mbuf.h>
44 #include <sys/mutex.h>
45 #include <sys/protosw.h>
46 #include <sys/socket.h>
47 #include <sys/socketvar.h>
48 #include <sys/sysctl.h>
49 #include <sys/taskqueue.h>
50
51 #include <net/vnet.h>
52
53 #include <netgraph/ng_message.h>
54 #include <netgraph/netgraph.h>
55 #include <netgraph/bluetooth/include/ng_bluetooth.h>
56 #include <netgraph/bluetooth/include/ng_hci.h>
57 #include <netgraph/bluetooth/include/ng_l2cap.h>
58 #include <netgraph/bluetooth/include/ng_btsocket.h>
59 #include <netgraph/bluetooth/include/ng_btsocket_hci_raw.h>
60 #include <netgraph/bluetooth/include/ng_btsocket_l2cap.h>
61 #include <netgraph/bluetooth/include/ng_btsocket_rfcomm.h>
62 #include <netgraph/bluetooth/include/ng_btsocket_sco.h>
63
64 static int ng_btsocket_modevent (module_t, int, void *);
65 static struct domain ng_btsocket_domain;
66
67 /*
68 * Bluetooth raw HCI sockets
69 */
70
71 static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = {
72 .pru_abort = ng_btsocket_hci_raw_abort,
73 .pru_attach = ng_btsocket_hci_raw_attach,
74 .pru_bind = ng_btsocket_hci_raw_bind,
75 .pru_connect = ng_btsocket_hci_raw_connect,
76 .pru_control = ng_btsocket_hci_raw_control,
77 .pru_detach = ng_btsocket_hci_raw_detach,
78 .pru_disconnect = ng_btsocket_hci_raw_disconnect,
79 .pru_peeraddr = ng_btsocket_hci_raw_peeraddr,
80 .pru_send = ng_btsocket_hci_raw_send,
81 .pru_shutdown = NULL,
82 .pru_sockaddr = ng_btsocket_hci_raw_sockaddr,
83 .pru_close = ng_btsocket_hci_raw_close,
84 };
85
86 /*
87 * Bluetooth raw L2CAP sockets
88 */
89
90 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = {
91 .pru_abort = ng_btsocket_l2cap_raw_abort,
92 .pru_attach = ng_btsocket_l2cap_raw_attach,
93 .pru_bind = ng_btsocket_l2cap_raw_bind,
94 .pru_connect = ng_btsocket_l2cap_raw_connect,
95 .pru_control = ng_btsocket_l2cap_raw_control,
96 .pru_detach = ng_btsocket_l2cap_raw_detach,
97 .pru_disconnect = ng_btsocket_l2cap_raw_disconnect,
98 .pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr,
99 .pru_send = ng_btsocket_l2cap_raw_send,
100 .pru_shutdown = NULL,
101 .pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr,
102 .pru_close = ng_btsocket_l2cap_raw_close,
103 };
104
105 /*
106 * Bluetooth SEQPACKET L2CAP sockets
107 */
108
109 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = {
110 .pru_abort = ng_btsocket_l2cap_abort,
111 .pru_accept = ng_btsocket_l2cap_accept,
112 .pru_attach = ng_btsocket_l2cap_attach,
113 .pru_bind = ng_btsocket_l2cap_bind,
114 .pru_connect = ng_btsocket_l2cap_connect,
115 .pru_control = ng_btsocket_l2cap_control,
116 .pru_detach = ng_btsocket_l2cap_detach,
117 .pru_disconnect = ng_btsocket_l2cap_disconnect,
118 .pru_listen = ng_btsocket_l2cap_listen,
119 .pru_peeraddr = ng_btsocket_l2cap_peeraddr,
120 .pru_send = ng_btsocket_l2cap_send,
121 .pru_shutdown = NULL,
122 .pru_sockaddr = ng_btsocket_l2cap_sockaddr,
123 .pru_close = ng_btsocket_l2cap_close,
124 };
125
126 /*
127 * Bluetooth STREAM RFCOMM sockets
128 */
129
130 static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = {
131 .pru_abort = ng_btsocket_rfcomm_abort,
132 .pru_accept = ng_btsocket_rfcomm_accept,
133 .pru_attach = ng_btsocket_rfcomm_attach,
134 .pru_bind = ng_btsocket_rfcomm_bind,
135 .pru_connect = ng_btsocket_rfcomm_connect,
136 .pru_control = ng_btsocket_rfcomm_control,
137 .pru_detach = ng_btsocket_rfcomm_detach,
138 .pru_disconnect = ng_btsocket_rfcomm_disconnect,
139 .pru_listen = ng_btsocket_rfcomm_listen,
140 .pru_peeraddr = ng_btsocket_rfcomm_peeraddr,
141 .pru_send = ng_btsocket_rfcomm_send,
142 .pru_shutdown = NULL,
143 .pru_sockaddr = ng_btsocket_rfcomm_sockaddr,
144 .pru_close = ng_btsocket_rfcomm_close,
145 };
146
147 /*
148 * Bluetooth SEQPACKET SCO sockets
149 */
150
151 static struct pr_usrreqs ng_btsocket_sco_usrreqs = {
152 .pru_abort = ng_btsocket_sco_abort,
153 .pru_accept = ng_btsocket_sco_accept,
154 .pru_attach = ng_btsocket_sco_attach,
155 .pru_bind = ng_btsocket_sco_bind,
156 .pru_connect = ng_btsocket_sco_connect,
157 .pru_control = ng_btsocket_sco_control,
158 .pru_detach = ng_btsocket_sco_detach,
159 .pru_disconnect = ng_btsocket_sco_disconnect,
160 .pru_listen = ng_btsocket_sco_listen,
161 .pru_peeraddr = ng_btsocket_sco_peeraddr,
162 .pru_send = ng_btsocket_sco_send,
163 .pru_shutdown = NULL,
164 .pru_sockaddr = ng_btsocket_sco_sockaddr,
165 .pru_close = ng_btsocket_sco_close,
166 };
167
168 /*
169 * Definitions of protocols supported in the BLUETOOTH domain
170 */
171
172 static struct protosw ng_btsocket_protosw[] = {
173 {
174 .pr_type = SOCK_RAW,
175 .pr_domain = &ng_btsocket_domain,
176 .pr_protocol = BLUETOOTH_PROTO_HCI,
177 .pr_flags = PR_ATOMIC|PR_ADDR,
178 .pr_ctloutput = ng_btsocket_hci_raw_ctloutput,
179 .pr_init = ng_btsocket_hci_raw_init,
180 .pr_usrreqs = &ng_btsocket_hci_raw_usrreqs,
181 },
182 {
183 .pr_type = SOCK_RAW,
184 .pr_domain = &ng_btsocket_domain,
185 .pr_protocol = BLUETOOTH_PROTO_L2CAP,
186 .pr_flags = PR_ATOMIC|PR_ADDR,
187 .pr_init = ng_btsocket_l2cap_raw_init,
188 .pr_usrreqs = &ng_btsocket_l2cap_raw_usrreqs,
189 },
190 {
191 .pr_type = SOCK_SEQPACKET,
192 .pr_domain = &ng_btsocket_domain,
193 .pr_protocol = BLUETOOTH_PROTO_L2CAP,
194 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED,
195 .pr_ctloutput = ng_btsocket_l2cap_ctloutput,
196 .pr_init = ng_btsocket_l2cap_init,
197 .pr_usrreqs = &ng_btsocket_l2cap_usrreqs,
198 },
199 {
200 .pr_type = SOCK_STREAM,
201 .pr_domain = &ng_btsocket_domain,
202 .pr_protocol = BLUETOOTH_PROTO_RFCOMM,
203 .pr_flags = PR_CONNREQUIRED,
204 .pr_ctloutput = ng_btsocket_rfcomm_ctloutput,
205 .pr_init = ng_btsocket_rfcomm_init,
206 .pr_usrreqs = &ng_btsocket_rfcomm_usrreqs,
207 },
208 {
209 .pr_type = SOCK_SEQPACKET,
210 .pr_domain = &ng_btsocket_domain,
211 .pr_protocol = BLUETOOTH_PROTO_SCO,
212 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED,
213 .pr_ctloutput = ng_btsocket_sco_ctloutput,
214 .pr_init = ng_btsocket_sco_init,
215 .pr_usrreqs = &ng_btsocket_sco_usrreqs,
216 },
217 };
218
219 #define ng_btsocket_protosw_end \
220 &ng_btsocket_protosw[nitems(ng_btsocket_protosw)]
221
222 /*
223 * BLUETOOTH domain
224 */
225
226 static struct domain ng_btsocket_domain = {
227 .dom_family = AF_BLUETOOTH,
228 .dom_name = "bluetooth",
229 .dom_protosw = ng_btsocket_protosw,
230 .dom_protoswNPROTOSW = ng_btsocket_protosw_end
231 };
232
233 /*
234 * Socket sysctl tree
235 */
236
237 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets,
238 CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
239 "Bluetooth HCI sockets family");
240 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets,
241 CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
242 "Bluetooth L2CAP sockets family");
243 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets,
244 CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
245 "Bluetooth RFCOMM sockets family");
246 SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets,
247 CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
248 "Bluetooth SCO sockets family");
249
250 /*
251 * Module
252 */
253
254 static moduledata_t ng_btsocket_mod = {
255 "ng_btsocket",
256 ng_btsocket_modevent,
257 NULL
258 };
259
260 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN,
261 SI_ORDER_ANY);
262 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION);
263 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION,
264 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION);
265 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION,
266 NG_ABI_VERSION, NG_ABI_VERSION);
267
268 /*
269 * Handle loading and unloading for this node type.
270 * This is to handle auxiliary linkages (e.g protocol domain addition).
271 */
272
273 static int
ng_btsocket_modevent(module_t mod,int event,void * data)274 ng_btsocket_modevent(module_t mod, int event, void *data)
275 {
276 int error = 0;
277
278 switch (event) {
279 case MOD_LOAD:
280 break;
281
282 case MOD_UNLOAD:
283 /* XXX can't unload protocol domain yet */
284 error = EBUSY;
285 break;
286
287 default:
288 error = EOPNOTSUPP;
289 break;
290 }
291
292 return (error);
293 } /* ng_btsocket_modevent */
294
295 VNET_DOMAIN_SET(ng_btsocket_);
296