1 /*
2 * ng_btsocket.c
3 */
4
5 /*-
6 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $Id: ng_btsocket.c,v 1.4 2003/09/14 23:29:06 max Exp $
31 * $FreeBSD: src/sys/netgraph/bluetooth/socket/ng_btsocket.c,v 1.13 2006/07/21 17:11:13 rwatson Exp $
32 */
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/bitstring.h>
37 #include <sys/errno.h>
38 #include <sys/domain.h>
39 #include <sys/kernel.h>
40 #include <sys/lock.h>
41 #include <sys/mbuf.h>
42 #include <sys/protosw.h>
43 #include <sys/socket.h>
44 #include <sys/socketvar.h>
45 #include <sys/sysctl.h>
46 #include <sys/taskqueue.h>
47 #include <netgraph7/ng_message.h>
48 #include <netgraph7/netgraph.h>
49 #include <netgraph7/bluetooth/include/ng_bluetooth.h>
50 #include <netgraph7/bluetooth/include/ng_hci.h>
51 #include <netgraph7/bluetooth/include/ng_l2cap.h>
52 #include <netgraph7/bluetooth/include/ng_btsocket.h>
53 #include <netgraph7/bluetooth/include/ng_btsocket_hci_raw.h>
54 #include <netgraph7/bluetooth/include/ng_btsocket_l2cap.h>
55 #include <netgraph7/bluetooth/include/ng_btsocket_rfcomm.h>
56
57 static int ng_btsocket_modevent (module_t, int, void *);
58 extern struct domain ng_btsocket_domain;
59
60 /*
61 * Bluetooth raw HCI sockets
62 */
63
64 static struct pr_usrreqs ng_btsocket_hci_raw_usrreqs = {
65 .pru_abort = ng_btsocket_hci_raw_abort,
66 .pru_attach = ng_btsocket_hci_raw_attach,
67 .pru_bind = ng_btsocket_hci_raw_bind,
68 .pru_connect = ng_btsocket_hci_raw_connect,
69 .pru_control = ng_btsocket_hci_raw_control,
70 .pru_detach = ng_btsocket_hci_raw_detach,
71 .pru_disconnect = ng_btsocket_hci_raw_disconnect,
72 .pru_peeraddr = ng_btsocket_hci_raw_peeraddr,
73 .pru_send = ng_btsocket_hci_raw_send,
74 .pru_shutdown = NULL,
75 .pru_sockaddr = ng_btsocket_hci_raw_sockaddr,
76 #if 0 /* XXX */
77 .pru_close = ng_btsocket_hci_raw_close,
78 #endif
79 .pru_sosend = sosend,
80 .pru_soreceive = soreceive,
81 };
82
83 /*
84 * Bluetooth raw L2CAP sockets
85 */
86
87 static struct pr_usrreqs ng_btsocket_l2cap_raw_usrreqs = {
88 .pru_abort = ng_btsocket_l2cap_raw_abort,
89 .pru_attach = ng_btsocket_l2cap_raw_attach,
90 .pru_bind = ng_btsocket_l2cap_raw_bind,
91 .pru_connect = ng_btsocket_l2cap_raw_connect,
92 .pru_control = ng_btsocket_l2cap_raw_control,
93 .pru_detach = ng_btsocket_l2cap_raw_detach,
94 .pru_disconnect = ng_btsocket_l2cap_raw_disconnect,
95 .pru_peeraddr = ng_btsocket_l2cap_raw_peeraddr,
96 .pru_send = ng_btsocket_l2cap_raw_send,
97 .pru_shutdown = NULL,
98 .pru_sockaddr = ng_btsocket_l2cap_raw_sockaddr,
99 #if 0 /* XXX */
100 .pru_close = ng_btsocket_l2cap_raw_close,
101 #endif
102 .pru_sosend = sosend,
103 .pru_soreceive = soreceive,
104 };
105
106 /*
107 * Bluetooth SEQPACKET L2CAP sockets
108 */
109
110 static struct pr_usrreqs ng_btsocket_l2cap_usrreqs = {
111 .pru_abort = ng_btsocket_l2cap_abort,
112 .pru_accept = ng_btsocket_l2cap_accept,
113 .pru_attach = ng_btsocket_l2cap_attach,
114 .pru_bind = ng_btsocket_l2cap_bind,
115 .pru_connect = ng_btsocket_l2cap_connect,
116 .pru_control = ng_btsocket_l2cap_control,
117 .pru_detach = ng_btsocket_l2cap_detach,
118 .pru_disconnect = ng_btsocket_l2cap_disconnect,
119 .pru_listen = ng_btsocket_l2cap_listen,
120 .pru_peeraddr = ng_btsocket_l2cap_peeraddr,
121 .pru_send = ng_btsocket_l2cap_send,
122 .pru_shutdown = NULL,
123 .pru_sockaddr = ng_btsocket_l2cap_sockaddr,
124 #if 0 /* XXX */
125 .pru_close = ng_btsocket_l2cap_close,
126 #endif
127 .pru_sosend = sosend,
128 .pru_soreceive = soreceive,
129 };
130
131 /*
132 * Bluetooth STREAM RFCOMM sockets
133 */
134
135 static struct pr_usrreqs ng_btsocket_rfcomm_usrreqs = {
136 .pru_abort = ng_btsocket_rfcomm_abort,
137 .pru_accept = ng_btsocket_rfcomm_accept,
138 .pru_attach = ng_btsocket_rfcomm_attach,
139 .pru_bind = ng_btsocket_rfcomm_bind,
140 .pru_connect = ng_btsocket_rfcomm_connect,
141 .pru_control = ng_btsocket_rfcomm_control,
142 .pru_detach = ng_btsocket_rfcomm_detach,
143 .pru_disconnect = ng_btsocket_rfcomm_disconnect,
144 .pru_listen = ng_btsocket_rfcomm_listen,
145 .pru_peeraddr = ng_btsocket_rfcomm_peeraddr,
146 .pru_send = ng_btsocket_rfcomm_send,
147 .pru_shutdown = NULL,
148 .pru_sockaddr = ng_btsocket_rfcomm_sockaddr,
149 #if 0 /* XXX */
150 .pru_close = ng_btsocket_rfcomm_close,
151 #endif
152 .pru_sosend = sosend,
153 .pru_soreceive = soreceive,
154 };
155
156 /*
157 * Definitions of protocols supported in the BLUETOOTH domain
158 */
159
160 static struct protosw ng_btsocket_protosw[] = {
161 {
162 .pr_type = SOCK_RAW,
163 .pr_domain = &ng_btsocket_domain,
164 .pr_protocol = BLUETOOTH_PROTO_HCI,
165 .pr_flags = PR_ATOMIC|PR_ADDR,
166 .pr_ctloutput = ng_btsocket_hci_raw_ctloutput,
167 .pr_init = ng_btsocket_hci_raw_init,
168 .pr_usrreqs = &ng_btsocket_hci_raw_usrreqs,
169 },
170 {
171 .pr_type = SOCK_RAW,
172 .pr_domain = &ng_btsocket_domain,
173 .pr_protocol = BLUETOOTH_PROTO_L2CAP,
174 .pr_flags = PR_ATOMIC|PR_ADDR,
175 .pr_init = ng_btsocket_l2cap_raw_init,
176 .pr_usrreqs = &ng_btsocket_l2cap_raw_usrreqs,
177 },
178 {
179 .pr_type = SOCK_SEQPACKET,
180 .pr_domain = &ng_btsocket_domain,
181 .pr_protocol = BLUETOOTH_PROTO_L2CAP,
182 .pr_flags = PR_ATOMIC|PR_CONNREQUIRED,
183 .pr_ctloutput = ng_btsocket_l2cap_ctloutput,
184 .pr_init = ng_btsocket_l2cap_init,
185 .pr_usrreqs = &ng_btsocket_l2cap_usrreqs,
186 },
187 {
188 .pr_type = SOCK_STREAM,
189 .pr_domain = &ng_btsocket_domain,
190 .pr_protocol = BLUETOOTH_PROTO_RFCOMM,
191 .pr_flags = PR_CONNREQUIRED,
192 .pr_ctloutput = ng_btsocket_rfcomm_ctloutput,
193 .pr_init = ng_btsocket_rfcomm_init,
194 .pr_usrreqs = &ng_btsocket_rfcomm_usrreqs,
195 }
196 };
197 #define ng_btsocket_protosw_size NELEM(ng_btsocket_protosw)
198 #define ng_btsocket_protosw_end \
199 &ng_btsocket_protosw[ng_btsocket_protosw_size]
200
201 /*
202 * BLUETOOTH domain
203 */
204
205 struct domain ng_btsocket_domain = {
206 .dom_family = AF_BLUETOOTH,
207 .dom_name = "bluetooth",
208 .dom_protosw = ng_btsocket_protosw,
209 .dom_protoswNPROTOSW = ng_btsocket_protosw_end
210 };
211
212 /*
213 * Socket sysctl tree
214 */
215
216 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets, CTLFLAG_RW,
217 0, "Bluetooth HCI sockets family");
218 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets, CTLFLAG_RW,
219 0, "Bluetooth L2CAP sockets family");
220 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets, CTLFLAG_RW,
221 0, "Bluetooth RFCOMM sockets family");
222
223 /*
224 * Module
225 */
226
227 static moduledata_t ng_btsocket_mod = {
228 "ng_btsocket",
229 ng_btsocket_modevent,
230 NULL
231 };
232
233 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN,
234 SI_ORDER_ANY);
235 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION);
236 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION,
237 NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION);
238 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION,
239 NG_ABI_VERSION, NG_ABI_VERSION);
240
241 /*
242 * Handle loading and unloading for this node type.
243 * This is to handle auxiliary linkages (e.g protocol domain addition).
244 */
245
246 static int
ng_btsocket_modevent(module_t mod,int event,void * data)247 ng_btsocket_modevent(module_t mod, int event, void *data)
248 {
249 int error = 0;
250
251 switch (event) {
252 case MOD_LOAD:
253 net_add_domain(&ng_btsocket_domain);
254 break;
255
256 case MOD_UNLOAD:
257 /* XXX can't unload protocol domain yet */
258 error = EBUSY;
259 break;
260
261 default:
262 error = EOPNOTSUPP;
263 break;
264 }
265
266 return (error);
267 } /* ng_btsocket_modevent */
268
269