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/compat.h>
28 #include <linux/export.h>
29 #include <linux/file.h>
33 static struct bt_sock_list bnep_sk_list = {
34 .lock = __RW_LOCK_UNLOCKED(bnep_sk_list.lock)
37 static int bnep_sock_release(struct socket *sock)
39 struct sock *sk = sock->sk;
41 BT_DBG("sock %p sk %p", sock, sk);
46 bt_sock_unlink(&bnep_sk_list, sk);
53 static int do_bnep_sock_ioctl(struct socket *sock, unsigned int cmd, void __user *argp)
55 struct bnep_connlist_req cl;
56 struct bnep_connadd_req ca;
57 struct bnep_conndel_req cd;
58 struct bnep_conninfo ci;
60 __u32 supp_feat = BIT(BNEP_SETUP_RESPONSE);
63 BT_DBG("cmd %x arg %p", cmd, argp);
67 if (!capable(CAP_NET_ADMIN))
70 if (copy_from_user(&ca, argp, sizeof(ca)))
73 nsock = sockfd_lookup(ca.sock, &err);
77 if (nsock->sk->sk_state != BT_CONNECTED) {
81 ca.device[sizeof(ca.device)-1] = 0;
83 err = bnep_add_connection(&ca, nsock);
85 if (copy_to_user(argp, &ca, sizeof(ca)))
93 if (!capable(CAP_NET_ADMIN))
96 if (copy_from_user(&cd, argp, sizeof(cd)))
99 return bnep_del_connection(&cd);
101 case BNEPGETCONNLIST:
102 if (copy_from_user(&cl, argp, sizeof(cl)))
108 err = bnep_get_connlist(&cl);
109 if (!err && copy_to_user(argp, &cl, sizeof(cl)))
114 case BNEPGETCONNINFO:
115 if (copy_from_user(&ci, argp, sizeof(ci)))
118 err = bnep_get_conninfo(&ci);
119 if (!err && copy_to_user(argp, &ci, sizeof(ci)))
124 case BNEPGETSUPPFEAT:
125 if (copy_to_user(argp, &supp_feat, sizeof(supp_feat)))
137 static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
139 return do_bnep_sock_ioctl(sock, cmd, (void __user *)arg);
143 static int bnep_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
145 void __user *argp = compat_ptr(arg);
146 if (cmd == BNEPGETCONNLIST) {
147 struct bnep_connlist_req cl;
148 unsigned __user *p = argp;
152 if (get_user(cl.cnum, p) || get_user(uci, p + 1))
155 cl.ci = compat_ptr(uci);
160 err = bnep_get_connlist(&cl);
162 if (!err && put_user(cl.cnum, p))
168 return do_bnep_sock_ioctl(sock, cmd, argp);
172 static const struct proto_ops bnep_sock_ops = {
173 .family = PF_BLUETOOTH,
174 .owner = THIS_MODULE,
175 .release = bnep_sock_release,
176 .ioctl = bnep_sock_ioctl,
178 .compat_ioctl = bnep_sock_compat_ioctl,
180 .bind = sock_no_bind,
181 .getname = sock_no_getname,
182 .sendmsg = sock_no_sendmsg,
183 .recvmsg = sock_no_recvmsg,
184 .listen = sock_no_listen,
185 .shutdown = sock_no_shutdown,
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 static int bnep_sock_create(struct net *net, struct socket *sock, int protocol,
203 BT_DBG("sock %p", sock);
205 if (sock->type != SOCK_RAW)
206 return -ESOCKTNOSUPPORT;
208 sk = bt_sock_alloc(net, sock, &bnep_proto, protocol, GFP_ATOMIC, kern);
212 sock->ops = &bnep_sock_ops;
213 sock->state = SS_UNCONNECTED;
215 bt_sock_link(&bnep_sk_list, sk);
219 static const struct net_proto_family bnep_sock_family_ops = {
220 .family = PF_BLUETOOTH,
221 .owner = THIS_MODULE,
222 .create = bnep_sock_create
225 int __init bnep_sock_init(void)
229 err = proto_register(&bnep_proto, 0);
233 err = bt_sock_register(BTPROTO_BNEP, &bnep_sock_family_ops);
235 BT_ERR("Can't register BNEP socket");
239 err = bt_procfs_init(&init_net, "bnep", &bnep_sk_list, NULL);
241 BT_ERR("Failed to create BNEP proc file");
242 bt_sock_unregister(BTPROTO_BNEP);
246 BT_INFO("BNEP socket layer initialized");
251 proto_unregister(&bnep_proto);
255 void __exit bnep_sock_cleanup(void)
257 bt_procfs_cleanup(&init_net, "bnep");
258 bt_sock_unregister(BTPROTO_BNEP);
259 proto_unregister(&bnep_proto);