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[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [net/] [bluetooth/] [hidp/] [sock.c] - Blame information for rev 3

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/*
   HIDP implementation for Linux Bluetooth stack (BlueZ).
   Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License version 2 as
   published by the Free Software Foundation;
 
   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
   SOFTWARE IS DISCLAIMED.
*/
 
#include <linux/module.h>
 
#include <linux/types.h>
#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/fcntl.h>
#include <linux/skbuff.h>
#include <linux/socket.h>
#include <linux/ioctl.h>
#include <linux/file.h>
#include <linux/init.h>
#include <linux/compat.h>
#include <net/sock.h>
 
#include "hidp.h"
 
#ifndef CONFIG_BT_HIDP_DEBUG
#undef  BT_DBG
#define BT_DBG(D...)
#endif
 
static int hidp_sock_release(struct socket *sock)
{
        struct sock *sk = sock->sk;
 
        BT_DBG("sock %p sk %p", sock, sk);
 
        if (!sk)
                return 0;
 
        sock_orphan(sk);
        sock_put(sk);
 
        return 0;
}
 
static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
        void __user *argp = (void __user *) arg;
        struct hidp_connadd_req ca;
        struct hidp_conndel_req cd;
        struct hidp_connlist_req cl;
        struct hidp_conninfo ci;
        struct socket *csock;
        struct socket *isock;
        int err;
 
        BT_DBG("cmd %x arg %lx", cmd, arg);
 
        switch (cmd) {
        case HIDPCONNADD:
                if (!capable(CAP_NET_ADMIN))
                        return -EACCES;
 
                if (copy_from_user(&ca, argp, sizeof(ca)))
                        return -EFAULT;
 
                csock = sockfd_lookup(ca.ctrl_sock, &err);
                if (!csock)
                        return err;
 
                isock = sockfd_lookup(ca.intr_sock, &err);
                if (!isock) {
                        fput(csock->file);
                        return err;
                }
 
                if (csock->sk->sk_state != BT_CONNECTED || isock->sk->sk_state != BT_CONNECTED) {
                        fput(csock->file);
                        fput(isock->file);
                        return -EBADFD;
                }
 
                err = hidp_add_connection(&ca, csock, isock);
                if (!err) {
                        if (copy_to_user(argp, &ca, sizeof(ca)))
                                err = -EFAULT;
                } else {
                        fput(csock->file);
                        fput(isock->file);
                }
 
                return err;
 
        case HIDPCONNDEL:
                if (!capable(CAP_NET_ADMIN))
                        return -EACCES;
 
                if (copy_from_user(&cd, argp, sizeof(cd)))
                        return -EFAULT;
 
                return hidp_del_connection(&cd);
 
        case HIDPGETCONNLIST:
                if (copy_from_user(&cl, argp, sizeof(cl)))
                        return -EFAULT;
 
                if (cl.cnum <= 0)
                        return -EINVAL;
 
                err = hidp_get_connlist(&cl);
                if (!err && copy_to_user(argp, &cl, sizeof(cl)))
                        return -EFAULT;
 
                return err;
 
        case HIDPGETCONNINFO:
                if (copy_from_user(&ci, argp, sizeof(ci)))
                        return -EFAULT;
 
                err = hidp_get_conninfo(&ci);
                if (!err && copy_to_user(argp, &ci, sizeof(ci)))
                        return -EFAULT;
 
                return err;
        }
 
        return -EINVAL;
}
 
#ifdef CONFIG_COMPAT
struct compat_hidp_connadd_req {
        int   ctrl_sock;        // Connected control socket
        int   intr_sock;        // Connteted interrupt socket
        __u16 parser;
        __u16 rd_size;
        compat_uptr_t rd_data;
        __u8  country;
        __u8  subclass;
        __u16 vendor;
        __u16 product;
        __u16 version;
        __u32 flags;
        __u32 idle_to;
        char  name[128];
};
 
static int hidp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
        if (cmd == HIDPGETCONNLIST) {
                struct hidp_connlist_req cl;
                uint32_t uci;
                int err;
 
                if (get_user(cl.cnum, (uint32_t __user *) arg) ||
                                get_user(uci, (u32 __user *) (arg + 4)))
                        return -EFAULT;
 
                cl.ci = compat_ptr(uci);
 
                if (cl.cnum <= 0)
                        return -EINVAL;
 
                err = hidp_get_connlist(&cl);
 
                if (!err && put_user(cl.cnum, (uint32_t __user *) arg))
                        err = -EFAULT;
 
                return err;
        } else if (cmd == HIDPCONNADD) {
                struct compat_hidp_connadd_req ca;
                struct hidp_connadd_req __user *uca;
 
                uca = compat_alloc_user_space(sizeof(*uca));
 
                if (copy_from_user(&ca, (void __user *) arg, sizeof(ca)))
                        return -EFAULT;
 
                if (put_user(ca.ctrl_sock, &uca->ctrl_sock) ||
                                put_user(ca.intr_sock, &uca->intr_sock) ||
                                put_user(ca.parser, &uca->parser) ||
                                put_user(ca.rd_size, &uca->rd_size) ||
                                put_user(compat_ptr(ca.rd_data), &uca->rd_data) ||
                                put_user(ca.country, &uca->country) ||
                                put_user(ca.subclass, &uca->subclass) ||
                                put_user(ca.vendor, &uca->vendor) ||
                                put_user(ca.product, &uca->product) ||
                                put_user(ca.version, &uca->version) ||
                                put_user(ca.flags, &uca->flags) ||
                                put_user(ca.idle_to, &uca->idle_to) ||
                                copy_to_user(&uca->name[0], &ca.name[0], 128))
                        return -EFAULT;
 
                arg = (unsigned long) uca;
 
                /* Fall through. We don't actually write back any _changes_
                   to the structure anyway, so there's no need to copy back
                   into the original compat version */
        }
 
        return hidp_sock_ioctl(sock, cmd, arg);
}
#endif
 
static const struct proto_ops hidp_sock_ops = {
        .family         = PF_BLUETOOTH,
        .owner          = THIS_MODULE,
        .release        = hidp_sock_release,
        .ioctl          = hidp_sock_ioctl,
#ifdef CONFIG_COMPAT
        .compat_ioctl   = hidp_sock_compat_ioctl,
#endif
        .bind           = sock_no_bind,
        .getname        = sock_no_getname,
        .sendmsg        = sock_no_sendmsg,
        .recvmsg        = sock_no_recvmsg,
        .poll           = sock_no_poll,
        .listen         = sock_no_listen,
        .shutdown       = sock_no_shutdown,
        .setsockopt     = sock_no_setsockopt,
        .getsockopt     = sock_no_getsockopt,
        .connect        = sock_no_connect,
        .socketpair     = sock_no_socketpair,
        .accept         = sock_no_accept,
        .mmap           = sock_no_mmap
};
 
static struct proto hidp_proto = {
        .name           = "HIDP",
        .owner          = THIS_MODULE,
        .obj_size       = sizeof(struct bt_sock)
};
 
static int hidp_sock_create(struct net *net, struct socket *sock, int protocol)
{
        struct sock *sk;
 
        BT_DBG("sock %p", sock);
 
        if (sock->type != SOCK_RAW)
                return -ESOCKTNOSUPPORT;
 
        sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hidp_proto);
        if (!sk)
                return -ENOMEM;
 
        sock_init_data(sock, sk);
 
        sock->ops = &hidp_sock_ops;
 
        sock->state = SS_UNCONNECTED;
 
        sock_reset_flag(sk, SOCK_ZAPPED);
 
        sk->sk_protocol = protocol;
        sk->sk_state    = BT_OPEN;
 
        return 0;
}
 
static struct net_proto_family hidp_sock_family_ops = {
        .family = PF_BLUETOOTH,
        .owner  = THIS_MODULE,
        .create = hidp_sock_create
};
 
int __init hidp_init_sockets(void)
{
        int err;
 
        err = proto_register(&hidp_proto, 0);
        if (err < 0)
                return err;
 
        err = bt_sock_register(BTPROTO_HIDP, &hidp_sock_family_ops);
        if (err < 0)
                goto error;
 
        return 0;
 
error:
        BT_ERR("Can't register HIDP socket");
        proto_unregister(&hidp_proto);
        return err;
}
 
void __exit hidp_cleanup_sockets(void)
{
        if (bt_sock_unregister(BTPROTO_HIDP) < 0)
                BT_ERR("Can't unregister HIDP socket");
 
        proto_unregister(&hidp_proto);
}

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Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [net/] [bluetooth/] [hidp/] [sock.c] - Blame information for rev 3

Line No.	Rev	Author	Line
1	3	xianfeng	`/*`
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/module.h>`
24
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/init.h>`
37			`#include <linux/compat.h>`
38			`#include <net/sock.h>`
39
40			`#include "hidp.h"`
41
42			`#ifndef CONFIG_BT_HIDP_DEBUG`
43			`#undef BT_DBG`
44			`#define BT_DBG(D...)`
45			`#endif`
46
47			`static int hidp_sock_release(struct socket *sock)`
48			`{`
49			`struct sock *sk = sock->sk;`
50
51			`BT_DBG("sock %p sk %p", sock, sk);`
52
53			`if (!sk)`
54			`return 0;`
55
56			`sock_orphan(sk);`
57			`sock_put(sk);`
58
59			`return 0;`
60			`}`
61
62			`static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)`
63			`{`
64			`void __user argp = (void __user ) arg;`
65			`struct hidp_connadd_req ca;`
66			`struct hidp_conndel_req cd;`
67			`struct hidp_connlist_req cl;`
68			`struct hidp_conninfo ci;`
69			`struct socket *csock;`
70			`struct socket *isock;`
71			`int err;`
72
73			`BT_DBG("cmd %x arg %lx", cmd, arg);`
74
75			`switch (cmd) {`
76			`case HIDPCONNADD:`
77			`if (!capable(CAP_NET_ADMIN))`
78			`return -EACCES;`
79
80			`if (copy_from_user(&ca, argp, sizeof(ca)))`
81			`return -EFAULT;`
82
83			`csock = sockfd_lookup(ca.ctrl_sock, &err);`
84			`if (!csock)`
85			`return err;`
86
87			`isock = sockfd_lookup(ca.intr_sock, &err);`
88			`if (!isock) {`
89			`fput(csock->file);`
90			`return err;`
91			`}`
92
93			`if (csock->sk->sk_state != BT_CONNECTED \|\| isock->sk->sk_state != BT_CONNECTED) {`
94			`fput(csock->file);`
95			`fput(isock->file);`
96			`return -EBADFD;`
97			`}`
98
99			`err = hidp_add_connection(&ca, csock, isock);`
100			`if (!err) {`
101			`if (copy_to_user(argp, &ca, sizeof(ca)))`
102			`err = -EFAULT;`
103			`} else {`
104			`fput(csock->file);`
105			`fput(isock->file);`
106			`}`
107
108			`return err;`
109
110			`case HIDPCONNDEL:`
111			`if (!capable(CAP_NET_ADMIN))`
112			`return -EACCES;`
113
114			`if (copy_from_user(&cd, argp, sizeof(cd)))`
115			`return -EFAULT;`
116
117			`return hidp_del_connection(&cd);`
118
119			`case HIDPGETCONNLIST:`
120			`if (copy_from_user(&cl, argp, sizeof(cl)))`
121			`return -EFAULT;`
122
123			`if (cl.cnum <= 0)`
124			`return -EINVAL;`
125
126			`err = hidp_get_connlist(&cl);`
127			`if (!err && copy_to_user(argp, &cl, sizeof(cl)))`
128			`return -EFAULT;`
129
130			`return err;`
131
132			`case HIDPGETCONNINFO:`
133			`if (copy_from_user(&ci, argp, sizeof(ci)))`
134			`return -EFAULT;`
135
136			`err = hidp_get_conninfo(&ci);`
137			`if (!err && copy_to_user(argp, &ci, sizeof(ci)))`
138			`return -EFAULT;`
139
140			`return err;`
141			`}`
142
143			`return -EINVAL;`
144			`}`
145
146			`#ifdef CONFIG_COMPAT`
147			`struct compat_hidp_connadd_req {`
148			`int ctrl_sock; // Connected control socket`
149			`int intr_sock; // Connteted interrupt socket`
150			`__u16 parser;`
151			`__u16 rd_size;`
152			`compat_uptr_t rd_data;`
153			`__u8 country;`
154			`__u8 subclass;`
155			`__u16 vendor;`
156			`__u16 product;`
157			`__u16 version;`
158			`__u32 flags;`
159			`__u32 idle_to;`
160			`char name[128];`
161			`};`
162
163			`static int hidp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)`
164			`{`
165			`if (cmd == HIDPGETCONNLIST) {`
166			`struct hidp_connlist_req cl;`
167			`uint32_t uci;`
168			`int err;`
169
170			`if (get_user(cl.cnum, (uint32_t __user *) arg) \|\|`
171			`get_user(uci, (u32 __user *) (arg + 4)))`
172			`return -EFAULT;`
173
174			`cl.ci = compat_ptr(uci);`
175
176			`if (cl.cnum <= 0)`
177			`return -EINVAL;`
178
179			`err = hidp_get_connlist(&cl);`
180
181			`if (!err && put_user(cl.cnum, (uint32_t __user *) arg))`
182			`err = -EFAULT;`
183
184			`return err;`
185			`} else if (cmd == HIDPCONNADD) {`
186			`struct compat_hidp_connadd_req ca;`
187			`struct hidp_connadd_req __user *uca;`
188
189			`uca = compat_alloc_user_space(sizeof(*uca));`
190
191			`if (copy_from_user(&ca, (void __user *) arg, sizeof(ca)))`
192			`return -EFAULT;`
193
194			`if (put_user(ca.ctrl_sock, &uca->ctrl_sock) \|\|`
195			`put_user(ca.intr_sock, &uca->intr_sock) \|\|`
196			`put_user(ca.parser, &uca->parser) \|\|`
197			`put_user(ca.rd_size, &uca->rd_size) \|\|`
198			`put_user(compat_ptr(ca.rd_data), &uca->rd_data) \|\|`
199			`put_user(ca.country, &uca->country) \|\|`
200			`put_user(ca.subclass, &uca->subclass) \|\|`
201			`put_user(ca.vendor, &uca->vendor) \|\|`
202			`put_user(ca.product, &uca->product) \|\|`
203			`put_user(ca.version, &uca->version) \|\|`
204			`put_user(ca.flags, &uca->flags) \|\|`
205			`put_user(ca.idle_to, &uca->idle_to) \|\|`
206			`copy_to_user(&uca->name[0], &ca.name[0], 128))`
207			`return -EFAULT;`
208
209			`arg = (unsigned long) uca;`
210
211			`/* Fall through. We don't actually write back any _changes_`
212			`to the structure anyway, so there's no need to copy back`
213			`into the original compat version */`
214			`}`
215
216			`return hidp_sock_ioctl(sock, cmd, arg);`
217			`}`
218			`#endif`
219
220			`static const struct proto_ops hidp_sock_ops = {`
221			`.family = PF_BLUETOOTH,`
222			`.owner = THIS_MODULE,`
223			`.release = hidp_sock_release,`
224			`.ioctl = hidp_sock_ioctl,`
225			`#ifdef CONFIG_COMPAT`
226			`.compat_ioctl = hidp_sock_compat_ioctl,`
227			`#endif`
228			`.bind = sock_no_bind,`
229			`.getname = sock_no_getname,`
230			`.sendmsg = sock_no_sendmsg,`
231			`.recvmsg = sock_no_recvmsg,`
232			`.poll = sock_no_poll,`
233			`.listen = sock_no_listen,`
234			`.shutdown = sock_no_shutdown,`
235			`.setsockopt = sock_no_setsockopt,`
236			`.getsockopt = sock_no_getsockopt,`
237			`.connect = sock_no_connect,`
238			`.socketpair = sock_no_socketpair,`
239			`.accept = sock_no_accept,`
240			`.mmap = sock_no_mmap`
241			`};`
242
243			`static struct proto hidp_proto = {`
244			`.name = "HIDP",`
245			`.owner = THIS_MODULE,`
246			`.obj_size = sizeof(struct bt_sock)`
247			`};`
248
249			`static int hidp_sock_create(struct net net, struct socket sock, int protocol)`
250			`{`
251			`struct sock *sk;`
252
253			`BT_DBG("sock %p", sock);`
254
255			`if (sock->type != SOCK_RAW)`
256			`return -ESOCKTNOSUPPORT;`
257
258			`sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hidp_proto);`
259			`if (!sk)`
260			`return -ENOMEM;`
261
262			`sock_init_data(sock, sk);`
263
264			`sock->ops = &hidp_sock_ops;`
265
266			`sock->state = SS_UNCONNECTED;`
267
268			`sock_reset_flag(sk, SOCK_ZAPPED);`
269
270			`sk->sk_protocol = protocol;`
271			`sk->sk_state = BT_OPEN;`
272
273			`return 0;`
274			`}`
275
276			`static struct net_proto_family hidp_sock_family_ops = {`
277			`.family = PF_BLUETOOTH,`
278			`.owner = THIS_MODULE,`
279			`.create = hidp_sock_create`
280			`};`
281
282			`int __init hidp_init_sockets(void)`
283			`{`
284			`int err;`
285
286			`err = proto_register(&hidp_proto, 0);`
287			`if (err < 0)`
288			`return err;`
289
290			`err = bt_sock_register(BTPROTO_HIDP, &hidp_sock_family_ops);`
291			`if (err < 0)`
292			`goto error;`
293
294			`return 0;`
295
296			`error:`
297			`BT_ERR("Can't register HIDP socket");`
298			`proto_unregister(&hidp_proto);`
299			`return err;`
300			`}`
301
302			`void __exit hidp_cleanup_sockets(void)`
303			`{`
304			`if (bt_sock_unregister(BTPROTO_HIDP) < 0)`
305			`BT_ERR("Can't unregister HIDP socket");`
306
307			`proto_unregister(&hidp_proto);`
308			`}`