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/module.h>
29 #include <linux/types.h>
30 #include <linux/capability.h>
31 #include <linux/errno.h>
32 #include <linux/kernel.h>
33 #include <linux/slab.h>
34 #include <linux/poll.h>
35 #include <linux/fcntl.h>
36 #include <linux/skbuff.h>
37 #include <linux/socket.h>
38 #include <linux/ioctl.h>
39 #include <linux/file.h>
40 #include <linux/init.h>
41 #include <linux/compat.h>
44 #include <asm/system.h>
45 #include <asm/uaccess.h>
49 static int bnep_sock_release(struct socket *sock)
51 struct sock *sk = sock->sk;
53 BT_DBG("sock %p sk %p", sock, sk);
63 static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
65 struct bnep_connlist_req cl;
66 struct bnep_connadd_req ca;
67 struct bnep_conndel_req cd;
68 struct bnep_conninfo ci;
70 void __user *argp = (void __user *)arg;
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 nsock = sockfd_lookup(ca.sock, &err);
87 if (nsock->sk->sk_state != BT_CONNECTED) {
92 err = bnep_add_connection(&ca, nsock);
94 if (copy_to_user(argp, &ca, sizeof(ca)))
102 if (!capable(CAP_NET_ADMIN))
105 if (copy_from_user(&cd, argp, sizeof(cd)))
108 return bnep_del_connection(&cd);
110 case BNEPGETCONNLIST:
111 if (copy_from_user(&cl, argp, sizeof(cl)))
117 err = bnep_get_connlist(&cl);
118 if (!err && copy_to_user(argp, &cl, sizeof(cl)))
123 case BNEPGETCONNINFO:
124 if (copy_from_user(&ci, argp, sizeof(ci)))
127 err = bnep_get_conninfo(&ci);
128 if (!err && copy_to_user(argp, &ci, sizeof(ci)))
141 static int bnep_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
143 if (cmd == BNEPGETCONNLIST) {
144 struct bnep_connlist_req cl;
148 if (get_user(cl.cnum, (uint32_t __user *) arg) ||
149 get_user(uci, (u32 __user *) (arg + 4)))
152 cl.ci = compat_ptr(uci);
157 err = bnep_get_connlist(&cl);
159 if (!err && put_user(cl.cnum, (uint32_t __user *) arg))
165 return bnep_sock_ioctl(sock, cmd, arg);
169 static const struct proto_ops bnep_sock_ops = {
170 .family = PF_BLUETOOTH,
171 .owner = THIS_MODULE,
172 .release = bnep_sock_release,
173 .ioctl = bnep_sock_ioctl,
175 .compat_ioctl = bnep_sock_compat_ioctl,
177 .bind = sock_no_bind,
178 .getname = sock_no_getname,
179 .sendmsg = sock_no_sendmsg,
180 .recvmsg = sock_no_recvmsg,
181 .poll = sock_no_poll,
182 .listen = sock_no_listen,
183 .shutdown = sock_no_shutdown,
184 .setsockopt = sock_no_setsockopt,
185 .getsockopt = sock_no_getsockopt,
186 .connect = sock_no_connect,
187 .socketpair = sock_no_socketpair,
188 .accept = sock_no_accept,
192 static struct proto bnep_proto = {
194 .owner = THIS_MODULE,
195 .obj_size = sizeof(struct bt_sock)
198 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,32))
199 static int bnep_sock_create(struct net *net, struct socket *sock, int protocol,
202 static int bnep_sock_create(struct net *net, struct socket *sock, int protocol)
207 BT_DBG("sock %p", sock);
209 if (sock->type != SOCK_RAW)
210 return -ESOCKTNOSUPPORT;
212 sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto);
216 sock_init_data(sock, sk);
218 sock->ops = &bnep_sock_ops;
220 sock->state = SS_UNCONNECTED;
222 sock_reset_flag(sk, SOCK_ZAPPED);
224 sk->sk_protocol = protocol;
225 sk->sk_state = BT_OPEN;
230 static const struct net_proto_family bnep_sock_family_ops = {
231 .family = PF_BLUETOOTH,
232 .owner = THIS_MODULE,
233 .create = bnep_sock_create
236 int __init bnep_sock_init(void)
240 err = proto_register(&bnep_proto, 0);
244 err = bt_sock_register(BTPROTO_BNEP, &bnep_sock_family_ops);
251 BT_ERR("Can't register BNEP socket");
252 proto_unregister(&bnep_proto);
256 void __exit bnep_sock_cleanup(void)
258 if (bt_sock_unregister(BTPROTO_BNEP) < 0)
259 BT_ERR("Can't unregister BNEP socket");
261 proto_unregister(&bnep_proto);