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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/bluetooth/hidp/sock.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'net/bluetooth/hidp/sock.c')
-rw-r--r--net/bluetooth/hidp/sock.c232
1 files changed, 232 insertions, 0 deletions
diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c
new file mode 100644
index 000000000000..fabb36d4666b
--- /dev/null
+++ b/net/bluetooth/hidp/sock.c
@@ -0,0 +1,232 @@
1/*
2 HIDP implementation for Linux Bluetooth stack (BlueZ).
3 Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
4
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;
8
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.
17
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.
21*/
22
23#include <linux/config.h>
24#include <linux/module.h>
25
26#include <linux/types.h>
27#include <linux/errno.h>
28#include <linux/kernel.h>
29#include <linux/major.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/init.h>
39#include <net/sock.h>
40
41#include "hidp.h"
42
43#ifndef CONFIG_BT_HIDP_DEBUG
44#undef BT_DBG
45#define BT_DBG(D...)
46#endif
47
48static int hidp_sock_release(struct socket *sock)
49{
50 struct sock *sk = sock->sk;
51
52 BT_DBG("sock %p sk %p", sock, sk);
53
54 if (!sk)
55 return 0;
56
57 sock_orphan(sk);
58 sock_put(sk);
59
60 return 0;
61}
62
63static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
64{
65 void __user *argp = (void __user *) arg;
66 struct hidp_connadd_req ca;
67 struct hidp_conndel_req cd;
68 struct hidp_connlist_req cl;
69 struct hidp_conninfo ci;
70 struct socket *csock;
71 struct socket *isock;
72 int err;
73
74 BT_DBG("cmd %x arg %lx", cmd, arg);
75
76 switch (cmd) {
77 case HIDPCONNADD:
78 if (!capable(CAP_NET_ADMIN))
79 return -EACCES;
80
81 if (copy_from_user(&ca, argp, sizeof(ca)))
82 return -EFAULT;
83
84 csock = sockfd_lookup(ca.ctrl_sock, &err);
85 if (!csock)
86 return err;
87
88 isock = sockfd_lookup(ca.intr_sock, &err);
89 if (!isock) {
90 fput(csock->file);
91 return err;
92 }
93
94 if (csock->sk->sk_state != BT_CONNECTED || isock->sk->sk_state != BT_CONNECTED) {
95 fput(csock->file);
96 fput(isock->file);
97 return -EBADFD;
98 }
99
100 err = hidp_add_connection(&ca, csock, isock);
101 if (!err) {
102 if (copy_to_user(argp, &ca, sizeof(ca)))
103 err = -EFAULT;
104 } else {
105 fput(csock->file);
106 fput(isock->file);
107 }
108
109 return err;
110
111 case HIDPCONNDEL:
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 hidp_del_connection(&cd);
119
120 case HIDPGETCONNLIST:
121 if (copy_from_user(&cl, argp, sizeof(cl)))
122 return -EFAULT;
123
124 if (cl.cnum <= 0)
125 return -EINVAL;
126
127 err = hidp_get_connlist(&cl);
128 if (!err && copy_to_user(argp, &cl, sizeof(cl)))
129 return -EFAULT;
130
131 return err;
132
133 case HIDPGETCONNINFO:
134 if (copy_from_user(&ci, argp, sizeof(ci)))
135 return -EFAULT;
136
137 err = hidp_get_conninfo(&ci);
138 if (!err && copy_to_user(argp, &ci, sizeof(ci)))
139 return -EFAULT;
140
141 return err;
142 }
143
144 return -EINVAL;
145}
146
147static struct proto_ops hidp_sock_ops = {
148 .family = PF_BLUETOOTH,
149 .owner = THIS_MODULE,
150 .release = hidp_sock_release,
151 .ioctl = hidp_sock_ioctl,
152 .bind = sock_no_bind,
153 .getname = sock_no_getname,
154 .sendmsg = sock_no_sendmsg,
155 .recvmsg = sock_no_recvmsg,
156 .poll = sock_no_poll,
157 .listen = sock_no_listen,
158 .shutdown = sock_no_shutdown,
159 .setsockopt = sock_no_setsockopt,
160 .getsockopt = sock_no_getsockopt,
161 .connect = sock_no_connect,
162 .socketpair = sock_no_socketpair,
163 .accept = sock_no_accept,
164 .mmap = sock_no_mmap
165};
166
167static struct proto hidp_proto = {
168 .name = "HIDP",
169 .owner = THIS_MODULE,
170 .obj_size = sizeof(struct bt_sock)
171};
172
173static int hidp_sock_create(struct socket *sock, int protocol)
174{
175 struct sock *sk;
176
177 BT_DBG("sock %p", sock);
178
179 if (sock->type != SOCK_RAW)
180 return -ESOCKTNOSUPPORT;
181
182 sk = sk_alloc(PF_BLUETOOTH, GFP_KERNEL, &hidp_proto, 1);
183 if (!sk)
184 return -ENOMEM;
185
186 sock_init_data(sock, sk);
187
188 sock->ops = &hidp_sock_ops;
189
190 sock->state = SS_UNCONNECTED;
191
192 sock_reset_flag(sk, SOCK_ZAPPED);
193
194 sk->sk_protocol = protocol;
195 sk->sk_state = BT_OPEN;
196
197 return 0;
198}
199
200static struct net_proto_family hidp_sock_family_ops = {
201 .family = PF_BLUETOOTH,
202 .owner = THIS_MODULE,
203 .create = hidp_sock_create
204};
205
206int __init hidp_init_sockets(void)
207{
208 int err;
209
210 err = proto_register(&hidp_proto, 0);
211 if (err < 0)
212 return err;
213
214 err = bt_sock_register(BTPROTO_HIDP, &hidp_sock_family_ops);
215 if (err < 0)
216 goto error;
217
218 return 0;
219
220error:
221 BT_ERR("Can't register HIDP socket");
222 proto_unregister(&hidp_proto);
223 return err;
224}
225
226void __exit hidp_cleanup_sockets(void)
227{
228 if (bt_sock_unregister(BTPROTO_HIDP) < 0)
229 BT_ERR("Can't unregister HIDP socket");
230
231 proto_unregister(&hidp_proto);
232}