diff options
Diffstat (limited to 'net/bluetooth/bnep/sock.c')
-rw-r--r-- | net/bluetooth/bnep/sock.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c new file mode 100644 index 000000000000..9a8d99a39b6d --- /dev/null +++ b/net/bluetooth/bnep/sock.c | |||
@@ -0,0 +1,237 @@ | |||
1 | /* | ||
2 | BNEP implementation for Linux Bluetooth stack (BlueZ). | ||
3 | Copyright (C) 2001-2002 Inventel Systemes | ||
4 | Written 2001-2002 by | ||
5 | David Libault <david.libault@inventel.fr> | ||
6 | |||
7 | Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com> | ||
8 | |||
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; | ||
12 | |||
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. | ||
21 | |||
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. | ||
25 | */ | ||
26 | |||
27 | /* | ||
28 | * $Id: sock.c,v 1.4 2002/08/04 21:23:58 maxk Exp $ | ||
29 | */ | ||
30 | |||
31 | #include <linux/config.h> | ||
32 | #include <linux/module.h> | ||
33 | |||
34 | #include <linux/types.h> | ||
35 | #include <linux/errno.h> | ||
36 | #include <linux/kernel.h> | ||
37 | #include <linux/major.h> | ||
38 | #include <linux/sched.h> | ||
39 | #include <linux/slab.h> | ||
40 | #include <linux/poll.h> | ||
41 | #include <linux/fcntl.h> | ||
42 | #include <linux/skbuff.h> | ||
43 | #include <linux/socket.h> | ||
44 | #include <linux/ioctl.h> | ||
45 | #include <linux/file.h> | ||
46 | #include <linux/init.h> | ||
47 | #include <net/sock.h> | ||
48 | |||
49 | #include <asm/system.h> | ||
50 | #include <asm/uaccess.h> | ||
51 | |||
52 | #include "bnep.h" | ||
53 | |||
54 | #ifndef CONFIG_BT_BNEP_DEBUG | ||
55 | #undef BT_DBG | ||
56 | #define BT_DBG( A... ) | ||
57 | #endif | ||
58 | |||
59 | static int bnep_sock_release(struct socket *sock) | ||
60 | { | ||
61 | struct sock *sk = sock->sk; | ||
62 | |||
63 | BT_DBG("sock %p sk %p", sock, sk); | ||
64 | |||
65 | if (!sk) | ||
66 | return 0; | ||
67 | |||
68 | sock_orphan(sk); | ||
69 | sock_put(sk); | ||
70 | return 0; | ||
71 | } | ||
72 | |||
73 | static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) | ||
74 | { | ||
75 | struct bnep_connlist_req cl; | ||
76 | struct bnep_connadd_req ca; | ||
77 | struct bnep_conndel_req cd; | ||
78 | struct bnep_conninfo ci; | ||
79 | struct socket *nsock; | ||
80 | void __user *argp = (void __user *)arg; | ||
81 | int err; | ||
82 | |||
83 | BT_DBG("cmd %x arg %lx", cmd, arg); | ||
84 | |||
85 | switch (cmd) { | ||
86 | case BNEPCONNADD: | ||
87 | if (!capable(CAP_NET_ADMIN)) | ||
88 | return -EACCES; | ||
89 | |||
90 | if (copy_from_user(&ca, argp, sizeof(ca))) | ||
91 | return -EFAULT; | ||
92 | |||
93 | nsock = sockfd_lookup(ca.sock, &err); | ||
94 | if (!nsock) | ||
95 | return err; | ||
96 | |||
97 | if (nsock->sk->sk_state != BT_CONNECTED) { | ||
98 | fput(nsock->file); | ||
99 | return -EBADFD; | ||
100 | } | ||
101 | |||
102 | err = bnep_add_connection(&ca, nsock); | ||
103 | if (!err) { | ||
104 | if (copy_to_user(argp, &ca, sizeof(ca))) | ||
105 | err = -EFAULT; | ||
106 | } else | ||
107 | fput(nsock->file); | ||
108 | |||
109 | return err; | ||
110 | |||
111 | case BNEPCONNDEL: | ||
112 | if (!capable(CAP_NET_ADMIN)) | ||
113 | return -EACCES; | ||
114 | |||
115 | if (copy_from_user(&cd, argp, sizeof(cd))) | ||
116 | return -EFAULT; | ||
117 | |||
118 | return bnep_del_connection(&cd); | ||
119 | |||
120 | case BNEPGETCONNLIST: | ||
121 | if (copy_from_user(&cl, argp, sizeof(cl))) | ||
122 | return -EFAULT; | ||
123 | |||
124 | if (cl.cnum <= 0) | ||
125 | return -EINVAL; | ||
126 | |||
127 | err = bnep_get_connlist(&cl); | ||
128 | if (!err && copy_to_user(argp, &cl, sizeof(cl))) | ||
129 | return -EFAULT; | ||
130 | |||
131 | return err; | ||
132 | |||
133 | case BNEPGETCONNINFO: | ||
134 | if (copy_from_user(&ci, argp, sizeof(ci))) | ||
135 | return -EFAULT; | ||
136 | |||
137 | err = bnep_get_conninfo(&ci); | ||
138 | if (!err && copy_to_user(argp, &ci, sizeof(ci))) | ||
139 | return -EFAULT; | ||
140 | |||
141 | return err; | ||
142 | |||
143 | default: | ||
144 | return -EINVAL; | ||
145 | } | ||
146 | |||
147 | return 0; | ||
148 | } | ||
149 | |||
150 | static struct proto_ops bnep_sock_ops = { | ||
151 | .family = PF_BLUETOOTH, | ||
152 | .owner = THIS_MODULE, | ||
153 | .release = bnep_sock_release, | ||
154 | .ioctl = bnep_sock_ioctl, | ||
155 | .bind = sock_no_bind, | ||
156 | .getname = sock_no_getname, | ||
157 | .sendmsg = sock_no_sendmsg, | ||
158 | .recvmsg = sock_no_recvmsg, | ||
159 | .poll = sock_no_poll, | ||
160 | .listen = sock_no_listen, | ||
161 | .shutdown = sock_no_shutdown, | ||
162 | .setsockopt = sock_no_setsockopt, | ||
163 | .getsockopt = sock_no_getsockopt, | ||
164 | .connect = sock_no_connect, | ||
165 | .socketpair = sock_no_socketpair, | ||
166 | .accept = sock_no_accept, | ||
167 | .mmap = sock_no_mmap | ||
168 | }; | ||
169 | |||
170 | static struct proto bnep_proto = { | ||
171 | .name = "BNEP", | ||
172 | .owner = THIS_MODULE, | ||
173 | .obj_size = sizeof(struct bt_sock) | ||
174 | }; | ||
175 | |||
176 | static int bnep_sock_create(struct socket *sock, int protocol) | ||
177 | { | ||
178 | struct sock *sk; | ||
179 | |||
180 | BT_DBG("sock %p", sock); | ||
181 | |||
182 | if (sock->type != SOCK_RAW) | ||
183 | return -ESOCKTNOSUPPORT; | ||
184 | |||
185 | sk = sk_alloc(PF_BLUETOOTH, GFP_KERNEL, &bnep_proto, 1); | ||
186 | if (!sk) | ||
187 | return -ENOMEM; | ||
188 | |||
189 | sock_init_data(sock, sk); | ||
190 | |||
191 | sock->ops = &bnep_sock_ops; | ||
192 | |||
193 | sock->state = SS_UNCONNECTED; | ||
194 | |||
195 | sock_reset_flag(sk, SOCK_ZAPPED); | ||
196 | |||
197 | sk->sk_protocol = protocol; | ||
198 | sk->sk_state = BT_OPEN; | ||
199 | |||
200 | return 0; | ||
201 | } | ||
202 | |||
203 | static struct net_proto_family bnep_sock_family_ops = { | ||
204 | .family = PF_BLUETOOTH, | ||
205 | .owner = THIS_MODULE, | ||
206 | .create = bnep_sock_create | ||
207 | }; | ||
208 | |||
209 | int __init bnep_sock_init(void) | ||
210 | { | ||
211 | int err; | ||
212 | |||
213 | err = proto_register(&bnep_proto, 0); | ||
214 | if (err < 0) | ||
215 | return err; | ||
216 | |||
217 | err = bt_sock_register(BTPROTO_BNEP, &bnep_sock_family_ops); | ||
218 | if (err < 0) | ||
219 | goto error; | ||
220 | |||
221 | return 0; | ||
222 | |||
223 | error: | ||
224 | BT_ERR("Can't register BNEP socket"); | ||
225 | proto_unregister(&bnep_proto); | ||
226 | return err; | ||
227 | } | ||
228 | |||
229 | int __exit bnep_sock_cleanup(void) | ||
230 | { | ||
231 | if (bt_sock_unregister(BTPROTO_BNEP) < 0) | ||
232 | BT_ERR("Can't unregister BNEP socket"); | ||
233 | |||
234 | proto_unregister(&bnep_proto); | ||
235 | |||
236 | return 0; | ||
237 | } | ||