2 BNEP implementation for Linux Bluetooth stack (BlueZ).
3 Copyright (C) 2001-2002 Inventel Systemes
5 David Libault <david.libault@inventel.fr>
7 Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License version 2 as
11 published by the Free Software Foundation;
13 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
14 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
16 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
17 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
18 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
19 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
20 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
23 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
24 SOFTWARE IS DISCLAIMED.
27 #include <linux/export.h>
28 #include <linux/file.h>
32 static struct bt_sock_list bnep_sk_list
= {
33 .lock
= __RW_LOCK_UNLOCKED(bnep_sk_list
.lock
)
36 static int bnep_sock_release(struct socket
*sock
)
38 struct sock
*sk
= sock
->sk
;
40 BT_DBG("sock %p sk %p", sock
, sk
);
45 bt_sock_unlink(&bnep_sk_list
, sk
);
52 static int bnep_sock_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
54 struct bnep_connlist_req cl
;
55 struct bnep_connadd_req ca
;
56 struct bnep_conndel_req cd
;
57 struct bnep_conninfo ci
;
59 void __user
*argp
= (void __user
*)arg
;
62 BT_DBG("cmd %x arg %lx", cmd
, arg
);
66 if (!capable(CAP_NET_ADMIN
))
69 if (copy_from_user(&ca
, argp
, sizeof(ca
)))
72 nsock
= sockfd_lookup(ca
.sock
, &err
);
76 if (nsock
->sk
->sk_state
!= BT_CONNECTED
) {
80 ca
.device
[sizeof(ca
.device
)-1] = 0;
82 err
= bnep_add_connection(&ca
, nsock
);
84 if (copy_to_user(argp
, &ca
, sizeof(ca
)))
92 if (!capable(CAP_NET_ADMIN
))
95 if (copy_from_user(&cd
, argp
, sizeof(cd
)))
98 return bnep_del_connection(&cd
);
100 case BNEPGETCONNLIST
:
101 if (copy_from_user(&cl
, argp
, sizeof(cl
)))
107 err
= bnep_get_connlist(&cl
);
108 if (!err
&& copy_to_user(argp
, &cl
, sizeof(cl
)))
113 case BNEPGETCONNINFO
:
114 if (copy_from_user(&ci
, argp
, sizeof(ci
)))
117 err
= bnep_get_conninfo(&ci
);
118 if (!err
&& copy_to_user(argp
, &ci
, sizeof(ci
)))
131 static int bnep_sock_compat_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
)
133 if (cmd
== BNEPGETCONNLIST
) {
134 struct bnep_connlist_req cl
;
138 if (get_user(cl
.cnum
, (u32 __user
*) arg
) ||
139 get_user(uci
, (u32 __user
*) (arg
+ 4)))
142 cl
.ci
= compat_ptr(uci
);
147 err
= bnep_get_connlist(&cl
);
149 if (!err
&& put_user(cl
.cnum
, (u32 __user
*) arg
))
155 return bnep_sock_ioctl(sock
, cmd
, arg
);
159 static const struct proto_ops bnep_sock_ops
= {
160 .family
= PF_BLUETOOTH
,
161 .owner
= THIS_MODULE
,
162 .release
= bnep_sock_release
,
163 .ioctl
= bnep_sock_ioctl
,
165 .compat_ioctl
= bnep_sock_compat_ioctl
,
167 .bind
= sock_no_bind
,
168 .getname
= sock_no_getname
,
169 .sendmsg
= sock_no_sendmsg
,
170 .recvmsg
= sock_no_recvmsg
,
171 .poll
= sock_no_poll
,
172 .listen
= sock_no_listen
,
173 .shutdown
= sock_no_shutdown
,
174 .setsockopt
= sock_no_setsockopt
,
175 .getsockopt
= sock_no_getsockopt
,
176 .connect
= sock_no_connect
,
177 .socketpair
= sock_no_socketpair
,
178 .accept
= sock_no_accept
,
182 static struct proto bnep_proto
= {
184 .owner
= THIS_MODULE
,
185 .obj_size
= sizeof(struct bt_sock
)
188 static int bnep_sock_create(struct net
*net
, struct socket
*sock
, int protocol
,
193 BT_DBG("sock %p", sock
);
195 if (sock
->type
!= SOCK_RAW
)
196 return -ESOCKTNOSUPPORT
;
198 sk
= sk_alloc(net
, PF_BLUETOOTH
, GFP_ATOMIC
, &bnep_proto
);
202 sock_init_data(sock
, sk
);
204 sock
->ops
= &bnep_sock_ops
;
206 sock
->state
= SS_UNCONNECTED
;
208 sock_reset_flag(sk
, SOCK_ZAPPED
);
210 sk
->sk_protocol
= protocol
;
211 sk
->sk_state
= BT_OPEN
;
213 bt_sock_link(&bnep_sk_list
, sk
);
217 static const struct net_proto_family bnep_sock_family_ops
= {
218 .family
= PF_BLUETOOTH
,
219 .owner
= THIS_MODULE
,
220 .create
= bnep_sock_create
223 int __init
bnep_sock_init(void)
227 err
= proto_register(&bnep_proto
, 0);
231 err
= bt_sock_register(BTPROTO_BNEP
, &bnep_sock_family_ops
);
233 BT_ERR("Can't register BNEP socket");
237 err
= bt_procfs_init(THIS_MODULE
, &init_net
, "bnep", &bnep_sk_list
, NULL
);
239 BT_ERR("Failed to create BNEP proc file");
240 bt_sock_unregister(BTPROTO_BNEP
);
244 BT_INFO("BNEP socket layer initialized");
249 proto_unregister(&bnep_proto
);
253 void __exit
bnep_sock_cleanup(void)
255 bt_procfs_cleanup(&init_net
, "bnep");
256 if (bt_sock_unregister(BTPROTO_BNEP
) < 0)
257 BT_ERR("Can't unregister BNEP socket");
259 proto_unregister(&bnep_proto
);