2 CMTP implementation for Linux Bluetooth stack (BlueZ).
3 Copyright (C) 2002-2003 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/config.h>
24 #include <linux/module.h>
26 #include <linux/types.h>
27 #include <linux/capability.h>
28 #include <linux/errno.h>
29 #include <linux/kernel.h>
30 #include <linux/sched.h>
31 #include <linux/slab.h>
32 #include <linux/poll.h>
33 #include <linux/fcntl.h>
34 #include <linux/skbuff.h>
35 #include <linux/socket.h>
36 #include <linux/ioctl.h>
37 #include <linux/file.h>
38 #include <linux/compat.h>
41 #include <linux/isdn/capilli.h>
43 #include <asm/system.h>
44 #include <asm/uaccess.h>
48 #ifndef CONFIG_BT_CMTP_DEBUG
53 static int cmtp_sock_release(struct socket *sock)
55 struct sock *sk = sock->sk;
57 BT_DBG("sock %p sk %p", sock, sk);
68 static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
70 struct cmtp_connadd_req ca;
71 struct cmtp_conndel_req cd;
72 struct cmtp_connlist_req cl;
73 struct cmtp_conninfo ci;
75 void __user *argp = (void __user *)arg;
78 BT_DBG("cmd %x arg %lx", cmd, arg);
82 if (!capable(CAP_NET_ADMIN))
85 if (copy_from_user(&ca, argp, sizeof(ca)))
88 nsock = sockfd_lookup(ca.sock, &err);
92 if (nsock->sk->sk_state != BT_CONNECTED) {
97 err = cmtp_add_connection(&ca, nsock);
99 if (copy_to_user(argp, &ca, sizeof(ca)))
107 if (!capable(CAP_NET_ADMIN))
110 if (copy_from_user(&cd, argp, sizeof(cd)))
113 return cmtp_del_connection(&cd);
115 case CMTPGETCONNLIST:
116 if (copy_from_user(&cl, argp, sizeof(cl)))
122 err = cmtp_get_connlist(&cl);
123 if (!err && copy_to_user(argp, &cl, sizeof(cl)))
128 case CMTPGETCONNINFO:
129 if (copy_from_user(&ci, argp, sizeof(ci)))
132 err = cmtp_get_conninfo(&ci);
133 if (!err && copy_to_user(argp, &ci, sizeof(ci)))
143 static int cmtp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
145 if (cmd == CMTPGETCONNLIST) {
146 struct cmtp_connlist_req cl;
150 if (get_user(cl.cnum, (uint32_t __user *) arg) ||
151 get_user(uci, (u32 __user *) (arg + 4)))
154 cl.ci = compat_ptr(uci);
159 err = cmtp_get_connlist(&cl);
161 if (!err && put_user(cl.cnum, (uint32_t __user *) arg))
167 return cmtp_sock_ioctl(sock, cmd, arg);
171 static const struct proto_ops cmtp_sock_ops = {
172 .family = PF_BLUETOOTH,
173 .owner = THIS_MODULE,
174 .release = cmtp_sock_release,
175 .ioctl = cmtp_sock_ioctl,
177 .compat_ioctl = cmtp_sock_compat_ioctl,
179 .bind = sock_no_bind,
180 .getname = sock_no_getname,
181 .sendmsg = sock_no_sendmsg,
182 .recvmsg = sock_no_recvmsg,
183 .poll = sock_no_poll,
184 .listen = sock_no_listen,
185 .shutdown = sock_no_shutdown,
186 .setsockopt = sock_no_setsockopt,
187 .getsockopt = sock_no_getsockopt,
188 .connect = sock_no_connect,
189 .socketpair = sock_no_socketpair,
190 .accept = sock_no_accept,
194 static struct proto cmtp_proto = {
196 .owner = THIS_MODULE,
197 .obj_size = sizeof(struct bt_sock)
200 static int cmtp_sock_create(struct socket *sock, int protocol)
204 BT_DBG("sock %p", sock);
206 if (sock->type != SOCK_RAW)
207 return -ESOCKTNOSUPPORT;
209 sk = sk_alloc(PF_BLUETOOTH, GFP_KERNEL, &cmtp_proto, 1);
213 sock_init_data(sock, sk);
215 sock->ops = &cmtp_sock_ops;
217 sock->state = SS_UNCONNECTED;
219 sock_reset_flag(sk, SOCK_ZAPPED);
221 sk->sk_protocol = protocol;
222 sk->sk_state = BT_OPEN;
227 static struct net_proto_family cmtp_sock_family_ops = {
228 .family = PF_BLUETOOTH,
229 .owner = THIS_MODULE,
230 .create = cmtp_sock_create
233 int cmtp_init_sockets(void)
237 err = proto_register(&cmtp_proto, 0);
241 err = bt_sock_register(BTPROTO_CMTP, &cmtp_sock_family_ops);
248 BT_ERR("Can't register CMTP socket");
249 proto_unregister(&cmtp_proto);
253 void cmtp_cleanup_sockets(void)
255 if (bt_sock_unregister(BTPROTO_CMTP) < 0)
256 BT_ERR("Can't unregister CMTP socket");
258 proto_unregister(&cmtp_proto);