2 HIDP implementation for Linux Bluetooth stack (BlueZ).
3 Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License version 2 as
7 published by the Free Software Foundation;
9 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
10 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
11 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
12 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
13 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
14 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
19 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
20 SOFTWARE IS DISCLAIMED.
23 #include <linux/export.h>
24 #include <linux/file.h>
28 static struct bt_sock_list hidp_sk_list
= {
29 .lock
= __RW_LOCK_UNLOCKED(hidp_sk_list
.lock
)
32 static int hidp_sock_release(struct socket
*sock
)
34 struct sock
*sk
= sock
->sk
;
36 BT_DBG("sock %p sk %p", sock
, sk
);
41 bt_sock_unlink(&hidp_sk_list
, sk
);
49 static int do_hidp_sock_ioctl(struct socket
*sock
, unsigned int cmd
, void __user
*argp
)
51 struct hidp_connadd_req ca
;
52 struct hidp_conndel_req cd
;
53 struct hidp_connlist_req cl
;
54 struct hidp_conninfo ci
;
59 BT_DBG("cmd %x arg %p", cmd
, argp
);
63 if (!capable(CAP_NET_ADMIN
))
66 if (copy_from_user(&ca
, argp
, sizeof(ca
)))
69 csock
= sockfd_lookup(ca
.ctrl_sock
, &err
);
73 isock
= sockfd_lookup(ca
.intr_sock
, &err
);
79 err
= hidp_connection_add(&ca
, csock
, isock
);
80 if (!err
&& copy_to_user(argp
, &ca
, sizeof(ca
)))
89 if (!capable(CAP_NET_ADMIN
))
92 if (copy_from_user(&cd
, argp
, sizeof(cd
)))
95 return hidp_connection_del(&cd
);
98 if (copy_from_user(&cl
, argp
, sizeof(cl
)))
104 err
= hidp_get_connlist(&cl
);
105 if (!err
&& copy_to_user(argp
, &cl
, sizeof(cl
)))
110 case HIDPGETCONNINFO
:
111 if (copy_from_user(&ci
, argp
, sizeof(ci
)))
114 err
= hidp_get_conninfo(&ci
);
115 if (!err
&& copy_to_user(argp
, &ci
, sizeof(ci
)))
124 static int hidp_sock_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
126 return do_hidp_sock_ioctl(sock
, cmd
, (void __user
*)arg
);
130 struct compat_hidp_connadd_req
{
131 int ctrl_sock
; /* Connected control socket */
132 int intr_sock
; /* Connected interrupt socket */
135 compat_uptr_t rd_data
;
146 static int hidp_sock_compat_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
148 void __user
*argp
= compat_ptr(arg
);
151 if (cmd
== HIDPGETCONNLIST
) {
152 struct hidp_connlist_req cl
;
153 u32 __user
*p
= argp
;
156 if (get_user(cl
.cnum
, p
) || get_user(uci
, p
+ 1))
159 cl
.ci
= compat_ptr(uci
);
164 err
= hidp_get_connlist(&cl
);
166 if (!err
&& put_user(cl
.cnum
, p
))
170 } else if (cmd
== HIDPCONNADD
) {
171 struct compat_hidp_connadd_req ca32
;
172 struct hidp_connadd_req ca
;
173 struct socket
*csock
;
174 struct socket
*isock
;
176 if (!capable(CAP_NET_ADMIN
))
179 if (copy_from_user(&ca32
, (void __user
*) arg
, sizeof(ca32
)))
182 ca
.ctrl_sock
= ca32
.ctrl_sock
;
183 ca
.intr_sock
= ca32
.intr_sock
;
184 ca
.parser
= ca32
.parser
;
185 ca
.rd_size
= ca32
.rd_size
;
186 ca
.rd_data
= compat_ptr(ca32
.rd_data
);
187 ca
.country
= ca32
.country
;
188 ca
.subclass
= ca32
.subclass
;
189 ca
.vendor
= ca32
.vendor
;
190 ca
.product
= ca32
.product
;
191 ca
.version
= ca32
.version
;
192 ca
.flags
= ca32
.flags
;
193 ca
.idle_to
= ca32
.idle_to
;
194 memcpy(ca
.name
, ca32
.name
, 128);
196 csock
= sockfd_lookup(ca
.ctrl_sock
, &err
);
200 isock
= sockfd_lookup(ca
.intr_sock
, &err
);
206 err
= hidp_connection_add(&ca
, csock
, isock
);
207 if (!err
&& copy_to_user(argp
, &ca32
, sizeof(ca32
)))
216 return hidp_sock_ioctl(sock
, cmd
, arg
);
220 static const struct proto_ops hidp_sock_ops
= {
221 .family
= PF_BLUETOOTH
,
222 .owner
= THIS_MODULE
,
223 .release
= hidp_sock_release
,
224 .ioctl
= hidp_sock_ioctl
,
226 .compat_ioctl
= hidp_sock_compat_ioctl
,
228 .bind
= sock_no_bind
,
229 .getname
= sock_no_getname
,
230 .sendmsg
= sock_no_sendmsg
,
231 .recvmsg
= sock_no_recvmsg
,
232 .listen
= sock_no_listen
,
233 .shutdown
= sock_no_shutdown
,
234 .setsockopt
= sock_no_setsockopt
,
235 .getsockopt
= sock_no_getsockopt
,
236 .connect
= sock_no_connect
,
237 .socketpair
= sock_no_socketpair
,
238 .accept
= sock_no_accept
,
242 static struct proto hidp_proto
= {
244 .owner
= THIS_MODULE
,
245 .obj_size
= sizeof(struct bt_sock
)
248 static int hidp_sock_create(struct net
*net
, struct socket
*sock
, int protocol
,
253 BT_DBG("sock %p", sock
);
255 if (sock
->type
!= SOCK_RAW
)
256 return -ESOCKTNOSUPPORT
;
258 sk
= sk_alloc(net
, PF_BLUETOOTH
, GFP_ATOMIC
, &hidp_proto
, kern
);
262 sock_init_data(sock
, sk
);
264 sock
->ops
= &hidp_sock_ops
;
266 sock
->state
= SS_UNCONNECTED
;
268 sock_reset_flag(sk
, SOCK_ZAPPED
);
270 sk
->sk_protocol
= protocol
;
271 sk
->sk_state
= BT_OPEN
;
273 bt_sock_link(&hidp_sk_list
, sk
);
278 static const struct net_proto_family hidp_sock_family_ops
= {
279 .family
= PF_BLUETOOTH
,
280 .owner
= THIS_MODULE
,
281 .create
= hidp_sock_create
284 int __init
hidp_init_sockets(void)
288 err
= proto_register(&hidp_proto
, 0);
292 err
= bt_sock_register(BTPROTO_HIDP
, &hidp_sock_family_ops
);
294 BT_ERR("Can't register HIDP socket");
298 err
= bt_procfs_init(&init_net
, "hidp", &hidp_sk_list
, NULL
);
300 BT_ERR("Failed to create HIDP proc file");
301 bt_sock_unregister(BTPROTO_HIDP
);
305 BT_INFO("HIDP socket layer initialized");
310 proto_unregister(&hidp_proto
);
314 void __exit
hidp_cleanup_sockets(void)
316 bt_procfs_cleanup(&init_net
, "hidp");
317 bt_sock_unregister(BTPROTO_HIDP
);
318 proto_unregister(&hidp_proto
);