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/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/slab.h>
30 #include <linux/poll.h>
31 #include <linux/fcntl.h>
32 #include <linux/skbuff.h>
33 #include <linux/socket.h>
34 #include <linux/ioctl.h>
35 #include <linux/file.h>
36 #include <linux/compat.h>
39 #include <linux/isdn/capilli.h>
41 #include <asm/system.h>
42 #include <asm/uaccess.h>
46 #ifndef CONFIG_BT_CMTP_DEBUG
51 static int cmtp_sock_release(struct socket *sock)
53 struct sock *sk = sock->sk;
55 BT_DBG("sock %p sk %p", sock, sk);
66 static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
68 struct cmtp_connadd_req ca;
69 struct cmtp_conndel_req cd;
70 struct cmtp_connlist_req cl;
71 struct cmtp_conninfo ci;
73 void __user *argp = (void __user *)arg;
76 BT_DBG("cmd %x arg %lx", cmd, arg);
80 if (!capable(CAP_NET_ADMIN))
83 if (copy_from_user(&ca, argp, sizeof(ca)))
86 nsock = sockfd_lookup(ca.sock, &err);
90 if (nsock->sk->sk_state != BT_CONNECTED) {
95 err = cmtp_add_connection(&ca, nsock);
97 if (copy_to_user(argp, &ca, sizeof(ca)))
105 if (!capable(CAP_NET_ADMIN))
108 if (copy_from_user(&cd, argp, sizeof(cd)))
111 return cmtp_del_connection(&cd);
113 case CMTPGETCONNLIST:
114 if (copy_from_user(&cl, argp, sizeof(cl)))
120 err = cmtp_get_connlist(&cl);
121 if (!err && copy_to_user(argp, &cl, sizeof(cl)))
126 case CMTPGETCONNINFO:
127 if (copy_from_user(&ci, argp, sizeof(ci)))
130 err = cmtp_get_conninfo(&ci);
131 if (!err && copy_to_user(argp, &ci, sizeof(ci)))
141 static int cmtp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
143 if (cmd == CMTPGETCONNLIST) {
144 struct cmtp_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 = cmtp_get_connlist(&cl);
159 if (!err && put_user(cl.cnum, (uint32_t __user *) arg))
165 return cmtp_sock_ioctl(sock, cmd, arg);
169 static const struct proto_ops cmtp_sock_ops = {
170 .family = PF_BLUETOOTH,
171 .owner = THIS_MODULE,
172 .release = cmtp_sock_release,
173 .ioctl = cmtp_sock_ioctl,
175 .compat_ioctl = cmtp_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 cmtp_proto = {
194 .owner = THIS_MODULE,
195 .obj_size = sizeof(struct bt_sock)
198 static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol)
202 BT_DBG("sock %p", sock);
204 if (sock->type != SOCK_RAW)
205 return -ESOCKTNOSUPPORT;
207 sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &cmtp_proto);
211 sock_init_data(sock, sk);
213 sock->ops = &cmtp_sock_ops;
215 sock->state = SS_UNCONNECTED;
217 sock_reset_flag(sk, SOCK_ZAPPED);
219 sk->sk_protocol = protocol;
220 sk->sk_state = BT_OPEN;
225 static struct net_proto_family cmtp_sock_family_ops = {
226 .family = PF_BLUETOOTH,
227 .owner = THIS_MODULE,
228 .create = cmtp_sock_create
231 int cmtp_init_sockets(void)
235 err = proto_register(&cmtp_proto, 0);
239 err = bt_sock_register(BTPROTO_CMTP, &cmtp_sock_family_ops);
246 BT_ERR("Can't register CMTP socket");
247 proto_unregister(&cmtp_proto);
251 void cmtp_cleanup_sockets(void)
253 if (bt_sock_unregister(BTPROTO_CMTP) < 0)
254 BT_ERR("Can't unregister CMTP socket");
256 proto_unregister(&cmtp_proto);