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 static int cmtp_sock_release(struct socket *sock)
48 struct sock *sk = sock->sk;
50 BT_DBG("sock %p sk %p", sock, sk);
61 static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
63 struct cmtp_connadd_req ca;
64 struct cmtp_conndel_req cd;
65 struct cmtp_connlist_req cl;
66 struct cmtp_conninfo ci;
68 void __user *argp = (void __user *)arg;
71 BT_DBG("cmd %x arg %lx", cmd, arg);
75 if (!capable(CAP_NET_ADMIN))
78 if (copy_from_user(&ca, argp, sizeof(ca)))
81 nsock = sockfd_lookup(ca.sock, &err);
85 if (nsock->sk->sk_state != BT_CONNECTED) {
90 err = cmtp_add_connection(&ca, nsock);
92 if (copy_to_user(argp, &ca, sizeof(ca)))
100 if (!capable(CAP_NET_ADMIN))
103 if (copy_from_user(&cd, argp, sizeof(cd)))
106 return cmtp_del_connection(&cd);
108 case CMTPGETCONNLIST:
109 if (copy_from_user(&cl, argp, sizeof(cl)))
115 err = cmtp_get_connlist(&cl);
116 if (!err && copy_to_user(argp, &cl, sizeof(cl)))
121 case CMTPGETCONNINFO:
122 if (copy_from_user(&ci, argp, sizeof(ci)))
125 err = cmtp_get_conninfo(&ci);
126 if (!err && copy_to_user(argp, &ci, sizeof(ci)))
136 static int cmtp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
138 if (cmd == CMTPGETCONNLIST) {
139 struct cmtp_connlist_req cl;
143 if (get_user(cl.cnum, (uint32_t __user *) arg) ||
144 get_user(uci, (u32 __user *) (arg + 4)))
147 cl.ci = compat_ptr(uci);
152 err = cmtp_get_connlist(&cl);
154 if (!err && put_user(cl.cnum, (uint32_t __user *) arg))
160 return cmtp_sock_ioctl(sock, cmd, arg);
164 static const struct proto_ops cmtp_sock_ops = {
165 .family = PF_BLUETOOTH,
166 .owner = THIS_MODULE,
167 .release = cmtp_sock_release,
168 .ioctl = cmtp_sock_ioctl,
170 .compat_ioctl = cmtp_sock_compat_ioctl,
172 .bind = sock_no_bind,
173 .getname = sock_no_getname,
174 .sendmsg = sock_no_sendmsg,
175 .recvmsg = sock_no_recvmsg,
176 .poll = sock_no_poll,
177 .listen = sock_no_listen,
178 .shutdown = sock_no_shutdown,
179 .setsockopt = sock_no_setsockopt,
180 .getsockopt = sock_no_getsockopt,
181 .connect = sock_no_connect,
182 .socketpair = sock_no_socketpair,
183 .accept = sock_no_accept,
187 static struct proto cmtp_proto = {
189 .owner = THIS_MODULE,
190 .obj_size = sizeof(struct bt_sock)
193 static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol)
197 BT_DBG("sock %p", sock);
199 if (sock->type != SOCK_RAW)
200 return -ESOCKTNOSUPPORT;
202 sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &cmtp_proto);
206 sock_init_data(sock, sk);
208 sock->ops = &cmtp_sock_ops;
210 sock->state = SS_UNCONNECTED;
212 sock_reset_flag(sk, SOCK_ZAPPED);
214 sk->sk_protocol = protocol;
215 sk->sk_state = BT_OPEN;
220 static struct net_proto_family cmtp_sock_family_ops = {
221 .family = PF_BLUETOOTH,
222 .owner = THIS_MODULE,
223 .create = cmtp_sock_create
226 int cmtp_init_sockets(void)
230 err = proto_register(&cmtp_proto, 0);
234 err = bt_sock_register(BTPROTO_CMTP, &cmtp_sock_family_ops);
241 BT_ERR("Can't register CMTP socket");
242 proto_unregister(&cmtp_proto);
246 void cmtp_cleanup_sockets(void)
248 if (bt_sock_unregister(BTPROTO_CMTP) < 0)
249 BT_ERR("Can't unregister CMTP socket");
251 proto_unregister(&cmtp_proto);