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/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/compat.h>
40 #include <linux/isdn/capilli.h>
42 #include <asm/system.h>
43 #include <asm/uaccess.h>
47 #ifndef CONFIG_BT_CMTP_DEBUG
52 static int cmtp_sock_release(struct socket *sock)
54 struct sock *sk = sock->sk;
56 BT_DBG("sock %p sk %p", sock, sk);
67 static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
69 struct cmtp_connadd_req ca;
70 struct cmtp_conndel_req cd;
71 struct cmtp_connlist_req cl;
72 struct cmtp_conninfo ci;
74 void __user *argp = (void __user *)arg;
77 BT_DBG("cmd %x arg %lx", cmd, arg);
81 if (!capable(CAP_NET_ADMIN))
84 if (copy_from_user(&ca, argp, sizeof(ca)))
87 nsock = sockfd_lookup(ca.sock, &err);
91 if (nsock->sk->sk_state != BT_CONNECTED) {
96 err = cmtp_add_connection(&ca, nsock);
98 if (copy_to_user(argp, &ca, sizeof(ca)))
106 if (!capable(CAP_NET_ADMIN))
109 if (copy_from_user(&cd, argp, sizeof(cd)))
112 return cmtp_del_connection(&cd);
114 case CMTPGETCONNLIST:
115 if (copy_from_user(&cl, argp, sizeof(cl)))
121 err = cmtp_get_connlist(&cl);
122 if (!err && copy_to_user(argp, &cl, sizeof(cl)))
127 case CMTPGETCONNINFO:
128 if (copy_from_user(&ci, argp, sizeof(ci)))
131 err = cmtp_get_conninfo(&ci);
132 if (!err && copy_to_user(argp, &ci, sizeof(ci)))
142 static int cmtp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
144 if (cmd == CMTPGETCONNLIST) {
145 struct cmtp_connlist_req cl;
149 if (get_user(cl.cnum, (uint32_t __user *) arg) ||
150 get_user(uci, (u32 __user *) (arg + 4)))
153 cl.ci = compat_ptr(uci);
158 err = cmtp_get_connlist(&cl);
160 if (!err && put_user(cl.cnum, (uint32_t __user *) arg))
166 return cmtp_sock_ioctl(sock, cmd, arg);
170 static const struct proto_ops cmtp_sock_ops = {
171 .family = PF_BLUETOOTH,
172 .owner = THIS_MODULE,
173 .release = cmtp_sock_release,
174 .ioctl = cmtp_sock_ioctl,
176 .compat_ioctl = cmtp_sock_compat_ioctl,
178 .bind = sock_no_bind,
179 .getname = sock_no_getname,
180 .sendmsg = sock_no_sendmsg,
181 .recvmsg = sock_no_recvmsg,
182 .poll = sock_no_poll,
183 .listen = sock_no_listen,
184 .shutdown = sock_no_shutdown,
185 .setsockopt = sock_no_setsockopt,
186 .getsockopt = sock_no_getsockopt,
187 .connect = sock_no_connect,
188 .socketpair = sock_no_socketpair,
189 .accept = sock_no_accept,
193 static struct proto cmtp_proto = {
195 .owner = THIS_MODULE,
196 .obj_size = sizeof(struct bt_sock)
199 static int cmtp_sock_create(struct socket *sock, int protocol)
203 BT_DBG("sock %p", sock);
205 if (sock->type != SOCK_RAW)
206 return -ESOCKTNOSUPPORT;
208 sk = sk_alloc(PF_BLUETOOTH, GFP_ATOMIC, &cmtp_proto, 1);
212 sock_init_data(sock, sk);
214 sock->ops = &cmtp_sock_ops;
216 sock->state = SS_UNCONNECTED;
218 sock_reset_flag(sk, SOCK_ZAPPED);
220 sk->sk_protocol = protocol;
221 sk->sk_state = BT_OPEN;
226 static struct net_proto_family cmtp_sock_family_ops = {
227 .family = PF_BLUETOOTH,
228 .owner = THIS_MODULE,
229 .create = cmtp_sock_create
232 int cmtp_init_sockets(void)
236 err = proto_register(&cmtp_proto, 0);
240 err = bt_sock_register(BTPROTO_CMTP, &cmtp_sock_family_ops);
247 BT_ERR("Can't register CMTP socket");
248 proto_unregister(&cmtp_proto);
252 void cmtp_cleanup_sockets(void)
254 if (bt_sock_unregister(BTPROTO_CMTP) < 0)
255 BT_ERR("Can't unregister CMTP socket");
257 proto_unregister(&cmtp_proto);