xref: /freebsd/sys/netgraph/bluetooth/socket/ng_btsocket.c (revision 350b7c3570aa6c87c537e54f706f1866f93a4142)
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  * $FreeBSD$
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 
66 /*
67  * Definitions of protocols supported in the BLUETOOTH domain
68  */
69 
70 /* Bluetooth raw HCI sockets */
71 static struct protosw ng_btsocket_hci_raw_protosw = {
72 	.pr_type =		SOCK_RAW,
73 	.pr_protocol =		BLUETOOTH_PROTO_HCI,
74 	.pr_flags =		PR_ATOMIC|PR_ADDR,
75 	.pr_ctloutput =		ng_btsocket_hci_raw_ctloutput,
76 	.pr_abort =		ng_btsocket_hci_raw_abort,
77 	.pr_attach =		ng_btsocket_hci_raw_attach,
78 	.pr_bind =		ng_btsocket_hci_raw_bind,
79 	.pr_connect =		ng_btsocket_hci_raw_connect,
80 	.pr_control =		ng_btsocket_hci_raw_control,
81 	.pr_detach =		ng_btsocket_hci_raw_detach,
82 	.pr_disconnect =	ng_btsocket_hci_raw_disconnect,
83 	.pr_peeraddr =		ng_btsocket_hci_raw_peeraddr,
84 	.pr_send =		ng_btsocket_hci_raw_send,
85 	.pr_sockaddr =		ng_btsocket_hci_raw_sockaddr,
86 	.pr_close =		ng_btsocket_hci_raw_close,
87 };
88 
89 /* Bluetooth raw L2CAP sockets */
90 static struct protosw ng_btsocket_l2cap_raw_protosw = {
91 	.pr_type =		SOCK_RAW,
92 	.pr_protocol =		BLUETOOTH_PROTO_L2CAP,
93 	.pr_flags =		PR_ATOMIC|PR_ADDR,
94 	.pr_abort =		ng_btsocket_l2cap_raw_abort,
95 	.pr_attach =		ng_btsocket_l2cap_raw_attach,
96 	.pr_bind =		ng_btsocket_l2cap_raw_bind,
97 	.pr_connect =		ng_btsocket_l2cap_raw_connect,
98 	.pr_control =		ng_btsocket_l2cap_raw_control,
99 	.pr_detach =		ng_btsocket_l2cap_raw_detach,
100 	.pr_disconnect =	ng_btsocket_l2cap_raw_disconnect,
101 	.pr_peeraddr =		ng_btsocket_l2cap_raw_peeraddr,
102 	.pr_send =		ng_btsocket_l2cap_raw_send,
103 	.pr_sockaddr =		ng_btsocket_l2cap_raw_sockaddr,
104 	.pr_close =		ng_btsocket_l2cap_raw_close,
105 };
106 
107 /* Bluetooth SEQPACKET L2CAP sockets */
108 static struct protosw ng_btsocket_l2cap_protosw = {
109 	.pr_type =		SOCK_SEQPACKET,
110 	.pr_protocol =		BLUETOOTH_PROTO_L2CAP,
111 	.pr_flags =		PR_ATOMIC|PR_CONNREQUIRED,
112 	.pr_ctloutput =		ng_btsocket_l2cap_ctloutput,
113 	.pr_abort =		ng_btsocket_l2cap_abort,
114 	.pr_accept =		ng_btsocket_l2cap_accept,
115 	.pr_attach =		ng_btsocket_l2cap_attach,
116 	.pr_bind =		ng_btsocket_l2cap_bind,
117 	.pr_connect =		ng_btsocket_l2cap_connect,
118 	.pr_control =		ng_btsocket_l2cap_control,
119 	.pr_detach =		ng_btsocket_l2cap_detach,
120 	.pr_disconnect =	ng_btsocket_l2cap_disconnect,
121         .pr_listen =		ng_btsocket_l2cap_listen,
122 	.pr_peeraddr =		ng_btsocket_l2cap_peeraddr,
123 	.pr_send =		ng_btsocket_l2cap_send,
124 	.pr_sockaddr =		ng_btsocket_l2cap_sockaddr,
125 	.pr_close =		ng_btsocket_l2cap_close,
126 };
127 
128 /* Bluetooth STREAM RFCOMM sockets */
129 static struct protosw ng_btsocket_rfcomm_protosw = {
130 	.pr_type =		SOCK_STREAM,
131 	.pr_protocol =		BLUETOOTH_PROTO_RFCOMM,
132 	.pr_flags =		PR_CONNREQUIRED,
133 	.pr_ctloutput =		ng_btsocket_rfcomm_ctloutput,
134 	.pr_abort =		ng_btsocket_rfcomm_abort,
135 	.pr_accept =		ng_btsocket_rfcomm_accept,
136 	.pr_attach =		ng_btsocket_rfcomm_attach,
137 	.pr_bind =		ng_btsocket_rfcomm_bind,
138 	.pr_connect =		ng_btsocket_rfcomm_connect,
139 	.pr_control =		ng_btsocket_rfcomm_control,
140 	.pr_detach =		ng_btsocket_rfcomm_detach,
141 	.pr_disconnect =	ng_btsocket_rfcomm_disconnect,
142         .pr_listen =		ng_btsocket_rfcomm_listen,
143 	.pr_peeraddr =		ng_btsocket_rfcomm_peeraddr,
144 	.pr_send =		ng_btsocket_rfcomm_send,
145 	.pr_sockaddr =		ng_btsocket_rfcomm_sockaddr,
146 	.pr_close =		ng_btsocket_rfcomm_close,
147 };
148 
149 /* Bluetooth SEQPACKET SCO sockets */
150 static struct protosw ng_btsocket_sco_protosw = {
151 	.pr_type =		SOCK_SEQPACKET,
152 	.pr_protocol =		BLUETOOTH_PROTO_SCO,
153 	.pr_flags =		PR_ATOMIC|PR_CONNREQUIRED,
154 	.pr_ctloutput =		ng_btsocket_sco_ctloutput,
155 	.pr_abort =		ng_btsocket_sco_abort,
156 	.pr_accept =		ng_btsocket_sco_accept,
157 	.pr_attach =		ng_btsocket_sco_attach,
158 	.pr_bind =		ng_btsocket_sco_bind,
159 	.pr_connect =		ng_btsocket_sco_connect,
160 	.pr_control =		ng_btsocket_sco_control,
161 	.pr_detach =		ng_btsocket_sco_detach,
162 	.pr_disconnect =	ng_btsocket_sco_disconnect,
163 	.pr_listen =		ng_btsocket_sco_listen,
164 	.pr_peeraddr =		ng_btsocket_sco_peeraddr,
165 	.pr_send =		ng_btsocket_sco_send,
166 	.pr_sockaddr =		ng_btsocket_sco_sockaddr,
167 	.pr_close =		ng_btsocket_sco_close,
168 };
169 
170 /*
171  * BLUETOOTH domain
172  */
173 
174 static struct domain ng_btsocket_domain = {
175 	.dom_family =		AF_BLUETOOTH,
176 	.dom_name =		"bluetooth",
177 	.dom_nprotosw =		5,
178 	.dom_protosw = {
179 		&ng_btsocket_hci_raw_protosw,
180 		&ng_btsocket_l2cap_raw_protosw,
181 		&ng_btsocket_l2cap_protosw,
182 		&ng_btsocket_rfcomm_protosw,
183 		&ng_btsocket_sco_protosw,
184 	},
185 };
186 
187 /*
188  * Socket sysctl tree
189  */
190 
191 SYSCTL_NODE(_net_bluetooth_hci, OID_AUTO, sockets,
192     CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
193     "Bluetooth HCI sockets family");
194 SYSCTL_NODE(_net_bluetooth_l2cap, OID_AUTO, sockets,
195     CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
196     "Bluetooth L2CAP sockets family");
197 SYSCTL_NODE(_net_bluetooth_rfcomm, OID_AUTO, sockets,
198     CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
199     "Bluetooth RFCOMM sockets family");
200 SYSCTL_NODE(_net_bluetooth_sco, OID_AUTO, sockets,
201     CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
202     "Bluetooth SCO sockets family");
203 
204 /*
205  * Module
206  */
207 
208 static moduledata_t	ng_btsocket_mod = {
209 	"ng_btsocket",
210 	ng_btsocket_modevent,
211 	NULL
212 };
213 
214 DECLARE_MODULE(ng_btsocket, ng_btsocket_mod, SI_SUB_PROTO_DOMAIN,
215 	SI_ORDER_ANY);
216 MODULE_VERSION(ng_btsocket, NG_BLUETOOTH_VERSION);
217 MODULE_DEPEND(ng_btsocket, ng_bluetooth, NG_BLUETOOTH_VERSION,
218 	NG_BLUETOOTH_VERSION, NG_BLUETOOTH_VERSION);
219 MODULE_DEPEND(ng_btsocket, netgraph, NG_ABI_VERSION,
220 	NG_ABI_VERSION, NG_ABI_VERSION);
221 
222 /*
223  * Handle loading and unloading for this node type.
224  * This is to handle auxiliary linkages (e.g protocol domain addition).
225  */
226 
227 static int
228 ng_btsocket_modevent(module_t mod, int event, void *data)
229 {
230 	int	error = 0;
231 
232 	switch (event) {
233 	case MOD_LOAD:
234 		break;
235 
236 	case MOD_UNLOAD:
237 		/* XXX can't unload protocol domain yet */
238 		error = EBUSY;
239 		break;
240 
241 	default:
242 		error = EOPNOTSUPP;
243 		break;
244 	}
245 
246 	return (error);
247 } /* ng_btsocket_modevent */
248 
249 DOMAIN_SET(ng_btsocket_);
250