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/module.h>
25 #include <linux/types.h>
26 #include <linux/capability.h>
27 #include <linux/errno.h>
28 #include <linux/kernel.h>
29 #include <linux/sched.h>
30 #include <linux/slab.h>
31 #include <linux/poll.h>
32 #include <linux/fcntl.h>
33 #include <linux/skbuff.h>
34 #include <linux/socket.h>
35 #include <linux/ioctl.h>
36 #include <linux/file.h>
37 #include <linux/init.h>
42 #ifndef CONFIG_BT_HIDP_DEBUG
47 static int hidp_sock_release(struct socket *sock)
49 struct sock *sk = sock->sk;
51 BT_DBG("sock %p sk %p", sock, sk);
62 static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
64 void __user *argp = (void __user *) arg;
65 struct hidp_connadd_req ca;
66 struct hidp_conndel_req cd;
67 struct hidp_connlist_req cl;
68 struct hidp_conninfo ci;
73 BT_DBG("cmd %x arg %lx", cmd, arg);
77 if (!capable(CAP_NET_ADMIN))
80 if (copy_from_user(&ca, argp, sizeof(ca)))
83 csock = sockfd_lookup(ca.ctrl_sock, &err);
87 isock = sockfd_lookup(ca.intr_sock, &err);
93 if (csock->sk->sk_state != BT_CONNECTED || isock->sk->sk_state != BT_CONNECTED) {
99 err = hidp_add_connection(&ca, csock, isock);
101 if (copy_to_user(argp, &ca, sizeof(ca)))
111 if (!capable(CAP_NET_ADMIN))
114 if (copy_from_user(&cd, argp, sizeof(cd)))
117 return hidp_del_connection(&cd);
119 case HIDPGETCONNLIST:
120 if (copy_from_user(&cl, argp, sizeof(cl)))
126 err = hidp_get_connlist(&cl);
127 if (!err && copy_to_user(argp, &cl, sizeof(cl)))
132 case HIDPGETCONNINFO:
133 if (copy_from_user(&ci, argp, sizeof(ci)))
136 err = hidp_get_conninfo(&ci);
137 if (!err && copy_to_user(argp, &ci, sizeof(ci)))
146 static const struct proto_ops hidp_sock_ops = {
147 .family = PF_BLUETOOTH,
148 .owner = THIS_MODULE,
149 .release = hidp_sock_release,
150 .ioctl = hidp_sock_ioctl,
151 .bind = sock_no_bind,
152 .getname = sock_no_getname,
153 .sendmsg = sock_no_sendmsg,
154 .recvmsg = sock_no_recvmsg,
155 .poll = sock_no_poll,
156 .listen = sock_no_listen,
157 .shutdown = sock_no_shutdown,
158 .setsockopt = sock_no_setsockopt,
159 .getsockopt = sock_no_getsockopt,
160 .connect = sock_no_connect,
161 .socketpair = sock_no_socketpair,
162 .accept = sock_no_accept,
166 static struct proto hidp_proto = {
168 .owner = THIS_MODULE,
169 .obj_size = sizeof(struct bt_sock)
172 static int hidp_sock_create(struct socket *sock, int protocol)
176 BT_DBG("sock %p", sock);
178 if (sock->type != SOCK_RAW)
179 return -ESOCKTNOSUPPORT;
181 sk = sk_alloc(PF_BLUETOOTH, GFP_KERNEL, &hidp_proto, 1);
185 sock_init_data(sock, sk);
187 sock->ops = &hidp_sock_ops;
189 sock->state = SS_UNCONNECTED;
191 sock_reset_flag(sk, SOCK_ZAPPED);
193 sk->sk_protocol = protocol;
194 sk->sk_state = BT_OPEN;
199 static struct net_proto_family hidp_sock_family_ops = {
200 .family = PF_BLUETOOTH,
201 .owner = THIS_MODULE,
202 .create = hidp_sock_create
205 int __init hidp_init_sockets(void)
209 err = proto_register(&hidp_proto, 0);
213 err = bt_sock_register(BTPROTO_HIDP, &hidp_sock_family_ops);
220 BT_ERR("Can't register HIDP socket");
221 proto_unregister(&hidp_proto);
225 void __exit hidp_cleanup_sockets(void)
227 if (bt_sock_unregister(BTPROTO_HIDP) < 0)
228 BT_ERR("Can't unregister HIDP socket");
230 proto_unregister(&hidp_proto);