Commit | Line | Data |
---|---|---|
8e87d142 | 1 | /* |
1da177e4 LT |
2 | BlueZ - Bluetooth protocol stack for Linux |
3 | Copyright (C) 2000-2001 Qualcomm Incorporated | |
4 | ||
5 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License version 2 as | |
9 | published by the Free Software Foundation; | |
10 | ||
11 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
12 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
13 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. | |
14 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY | |
8e87d142 YH |
15 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
16 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
17 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
1da177e4 LT |
18 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
19 | ||
8e87d142 YH |
20 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
21 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS | |
1da177e4 LT |
22 | SOFTWARE IS DISCLAIMED. |
23 | */ | |
24 | ||
25 | /* Bluetooth address family and sockets. */ | |
26 | ||
1da177e4 LT |
27 | #include <linux/module.h> |
28 | ||
29 | #include <linux/types.h> | |
30 | #include <linux/list.h> | |
31 | #include <linux/errno.h> | |
32 | #include <linux/kernel.h> | |
1da177e4 | 33 | #include <linux/sched.h> |
1da177e4 LT |
34 | #include <linux/skbuff.h> |
35 | #include <linux/init.h> | |
36 | #include <linux/poll.h> | |
1da177e4 | 37 | #include <net/sock.h> |
3241ad82 | 38 | #include <asm/ioctls.h> |
1da177e4 | 39 | #include <linux/kmod.h> |
1da177e4 LT |
40 | |
41 | #include <net/bluetooth/bluetooth.h> | |
42 | ||
64274518 | 43 | #define VERSION "2.16" |
1da177e4 LT |
44 | |
45 | /* Bluetooth sockets */ | |
46 | #define BT_MAX_PROTO 8 | |
ec1b4cf7 | 47 | static const struct net_proto_family *bt_proto[BT_MAX_PROTO]; |
db7aa1c2 | 48 | static DEFINE_RWLOCK(bt_proto_lock); |
68845cb2 | 49 | |
68845cb2 | 50 | static struct lock_class_key bt_lock_key[BT_MAX_PROTO]; |
36cbd3dc | 51 | static const char *const bt_key_strings[BT_MAX_PROTO] = { |
68845cb2 DY |
52 | "sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP", |
53 | "sk_lock-AF_BLUETOOTH-BTPROTO_HCI", | |
54 | "sk_lock-AF_BLUETOOTH-BTPROTO_SCO", | |
55 | "sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM", | |
56 | "sk_lock-AF_BLUETOOTH-BTPROTO_BNEP", | |
57 | "sk_lock-AF_BLUETOOTH-BTPROTO_CMTP", | |
58 | "sk_lock-AF_BLUETOOTH-BTPROTO_HIDP", | |
59 | "sk_lock-AF_BLUETOOTH-BTPROTO_AVDTP", | |
60 | }; | |
61 | ||
db7aa1c2 | 62 | static struct lock_class_key bt_slock_key[BT_MAX_PROTO]; |
36cbd3dc | 63 | static const char *const bt_slock_key_strings[BT_MAX_PROTO] = { |
68845cb2 DY |
64 | "slock-AF_BLUETOOTH-BTPROTO_L2CAP", |
65 | "slock-AF_BLUETOOTH-BTPROTO_HCI", | |
66 | "slock-AF_BLUETOOTH-BTPROTO_SCO", | |
67 | "slock-AF_BLUETOOTH-BTPROTO_RFCOMM", | |
68 | "slock-AF_BLUETOOTH-BTPROTO_BNEP", | |
69 | "slock-AF_BLUETOOTH-BTPROTO_CMTP", | |
70 | "slock-AF_BLUETOOTH-BTPROTO_HIDP", | |
71 | "slock-AF_BLUETOOTH-BTPROTO_AVDTP", | |
72 | }; | |
db7aa1c2 MH |
73 | |
74 | static inline void bt_sock_reclassify_lock(struct socket *sock, int proto) | |
75 | { | |
76 | struct sock *sk = sock->sk; | |
77 | ||
78 | if (!sk) | |
79 | return; | |
80 | ||
81 | BUG_ON(sock_owned_by_user(sk)); | |
82 | ||
83 | sock_lock_init_class_and_name(sk, | |
84 | bt_slock_key_strings[proto], &bt_slock_key[proto], | |
85 | bt_key_strings[proto], &bt_lock_key[proto]); | |
86 | } | |
1da177e4 | 87 | |
ec1b4cf7 | 88 | int bt_sock_register(int proto, const struct net_proto_family *ops) |
1da177e4 | 89 | { |
74da626a MH |
90 | int err = 0; |
91 | ||
1da177e4 LT |
92 | if (proto < 0 || proto >= BT_MAX_PROTO) |
93 | return -EINVAL; | |
94 | ||
74da626a MH |
95 | write_lock(&bt_proto_lock); |
96 | ||
1da177e4 | 97 | if (bt_proto[proto]) |
74da626a MH |
98 | err = -EEXIST; |
99 | else | |
100 | bt_proto[proto] = ops; | |
101 | ||
102 | write_unlock(&bt_proto_lock); | |
1da177e4 | 103 | |
74da626a | 104 | return err; |
1da177e4 LT |
105 | } |
106 | EXPORT_SYMBOL(bt_sock_register); | |
107 | ||
108 | int bt_sock_unregister(int proto) | |
109 | { | |
74da626a MH |
110 | int err = 0; |
111 | ||
1da177e4 LT |
112 | if (proto < 0 || proto >= BT_MAX_PROTO) |
113 | return -EINVAL; | |
114 | ||
74da626a MH |
115 | write_lock(&bt_proto_lock); |
116 | ||
1da177e4 | 117 | if (!bt_proto[proto]) |
74da626a MH |
118 | err = -ENOENT; |
119 | else | |
120 | bt_proto[proto] = NULL; | |
1da177e4 | 121 | |
74da626a MH |
122 | write_unlock(&bt_proto_lock); |
123 | ||
124 | return err; | |
1da177e4 LT |
125 | } |
126 | EXPORT_SYMBOL(bt_sock_unregister); | |
127 | ||
3f378b68 EP |
128 | static int bt_sock_create(struct net *net, struct socket *sock, int proto, |
129 | int kern) | |
1da177e4 | 130 | { |
74da626a | 131 | int err; |
1da177e4 | 132 | |
1b8d7ae4 EB |
133 | if (net != &init_net) |
134 | return -EAFNOSUPPORT; | |
135 | ||
1da177e4 LT |
136 | if (proto < 0 || proto >= BT_MAX_PROTO) |
137 | return -EINVAL; | |
138 | ||
95a5afca | 139 | if (!bt_proto[proto]) |
1da177e4 | 140 | request_module("bt-proto-%d", proto); |
74da626a | 141 | |
1da177e4 | 142 | err = -EPROTONOSUPPORT; |
74da626a MH |
143 | |
144 | read_lock(&bt_proto_lock); | |
145 | ||
1da177e4 | 146 | if (bt_proto[proto] && try_module_get(bt_proto[proto]->owner)) { |
3f378b68 | 147 | err = bt_proto[proto]->create(net, sock, proto, kern); |
db7aa1c2 | 148 | bt_sock_reclassify_lock(sock, proto); |
1da177e4 LT |
149 | module_put(bt_proto[proto]->owner); |
150 | } | |
74da626a MH |
151 | |
152 | read_unlock(&bt_proto_lock); | |
153 | ||
8e87d142 | 154 | return err; |
1da177e4 LT |
155 | } |
156 | ||
157 | void bt_sock_link(struct bt_sock_list *l, struct sock *sk) | |
158 | { | |
159 | write_lock_bh(&l->lock); | |
160 | sk_add_node(sk, &l->head); | |
161 | write_unlock_bh(&l->lock); | |
162 | } | |
163 | EXPORT_SYMBOL(bt_sock_link); | |
164 | ||
165 | void bt_sock_unlink(struct bt_sock_list *l, struct sock *sk) | |
166 | { | |
167 | write_lock_bh(&l->lock); | |
168 | sk_del_node_init(sk); | |
169 | write_unlock_bh(&l->lock); | |
170 | } | |
171 | EXPORT_SYMBOL(bt_sock_unlink); | |
172 | ||
173 | void bt_accept_enqueue(struct sock *parent, struct sock *sk) | |
174 | { | |
175 | BT_DBG("parent %p, sk %p", parent, sk); | |
176 | ||
177 | sock_hold(sk); | |
178 | list_add_tail(&bt_sk(sk)->accept_q, &bt_sk(parent)->accept_q); | |
179 | bt_sk(sk)->parent = parent; | |
180 | parent->sk_ack_backlog++; | |
181 | } | |
182 | EXPORT_SYMBOL(bt_accept_enqueue); | |
183 | ||
184 | void bt_accept_unlink(struct sock *sk) | |
185 | { | |
186 | BT_DBG("sk %p state %d", sk, sk->sk_state); | |
187 | ||
188 | list_del_init(&bt_sk(sk)->accept_q); | |
189 | bt_sk(sk)->parent->sk_ack_backlog--; | |
190 | bt_sk(sk)->parent = NULL; | |
191 | sock_put(sk); | |
192 | } | |
193 | EXPORT_SYMBOL(bt_accept_unlink); | |
194 | ||
195 | struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock) | |
196 | { | |
197 | struct list_head *p, *n; | |
198 | struct sock *sk; | |
199 | ||
200 | BT_DBG("parent %p", parent); | |
201 | ||
202 | list_for_each_safe(p, n, &bt_sk(parent)->accept_q) { | |
203 | sk = (struct sock *) list_entry(p, struct bt_sock, accept_q); | |
204 | ||
8a154a8f | 205 | lock_sock(sk); |
1da177e4 LT |
206 | |
207 | /* FIXME: Is this check still needed */ | |
208 | if (sk->sk_state == BT_CLOSED) { | |
8a154a8f | 209 | release_sock(sk); |
1da177e4 LT |
210 | bt_accept_unlink(sk); |
211 | continue; | |
212 | } | |
213 | ||
c4f912e1 MH |
214 | if (sk->sk_state == BT_CONNECTED || !newsock || |
215 | bt_sk(parent)->defer_setup) { | |
1da177e4 LT |
216 | bt_accept_unlink(sk); |
217 | if (newsock) | |
218 | sock_graft(sk, newsock); | |
d37f50e1 | 219 | |
8a154a8f | 220 | release_sock(sk); |
1da177e4 LT |
221 | return sk; |
222 | } | |
223 | ||
8a154a8f | 224 | release_sock(sk); |
1da177e4 | 225 | } |
d37f50e1 | 226 | |
1da177e4 LT |
227 | return NULL; |
228 | } | |
229 | EXPORT_SYMBOL(bt_accept_dequeue); | |
230 | ||
231 | int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, | |
c4f912e1 | 232 | struct msghdr *msg, size_t len, int flags) |
1da177e4 LT |
233 | { |
234 | int noblock = flags & MSG_DONTWAIT; | |
235 | struct sock *sk = sock->sk; | |
236 | struct sk_buff *skb; | |
237 | size_t copied; | |
238 | int err; | |
239 | ||
a418b893 | 240 | BT_DBG("sock %p sk %p len %zu", sock, sk, len); |
1da177e4 LT |
241 | |
242 | if (flags & (MSG_OOB)) | |
243 | return -EOPNOTSUPP; | |
244 | ||
5a08ecce AE |
245 | skb = skb_recv_datagram(sk, flags, noblock, &err); |
246 | if (!skb) { | |
1da177e4 LT |
247 | if (sk->sk_shutdown & RCV_SHUTDOWN) |
248 | return 0; | |
249 | return err; | |
250 | } | |
251 | ||
252 | msg->msg_namelen = 0; | |
253 | ||
254 | copied = skb->len; | |
255 | if (len < copied) { | |
256 | msg->msg_flags |= MSG_TRUNC; | |
257 | copied = len; | |
258 | } | |
259 | ||
badff6d0 | 260 | skb_reset_transport_header(skb); |
1da177e4 | 261 | err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); |
3241ad82 | 262 | if (err == 0) |
3b885787 | 263 | sock_recv_ts_and_drops(msg, sk, skb); |
1da177e4 LT |
264 | |
265 | skb_free_datagram(sk, skb); | |
266 | ||
267 | return err ? : copied; | |
268 | } | |
269 | EXPORT_SYMBOL(bt_sock_recvmsg); | |
270 | ||
796c86ee MM |
271 | static long bt_sock_data_wait(struct sock *sk, long timeo) |
272 | { | |
273 | DECLARE_WAITQUEUE(wait, current); | |
274 | ||
275 | add_wait_queue(sk_sleep(sk), &wait); | |
276 | for (;;) { | |
277 | set_current_state(TASK_INTERRUPTIBLE); | |
278 | ||
279 | if (!skb_queue_empty(&sk->sk_receive_queue)) | |
280 | break; | |
281 | ||
282 | if (sk->sk_err || (sk->sk_shutdown & RCV_SHUTDOWN)) | |
283 | break; | |
284 | ||
285 | if (signal_pending(current) || !timeo) | |
286 | break; | |
287 | ||
288 | set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); | |
289 | release_sock(sk); | |
290 | timeo = schedule_timeout(timeo); | |
291 | lock_sock(sk); | |
292 | clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags); | |
293 | } | |
294 | ||
295 | __set_current_state(TASK_RUNNING); | |
296 | remove_wait_queue(sk_sleep(sk), &wait); | |
297 | return timeo; | |
298 | } | |
299 | ||
300 | int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock, | |
301 | struct msghdr *msg, size_t size, int flags) | |
302 | { | |
303 | struct sock *sk = sock->sk; | |
304 | int err = 0; | |
305 | size_t target, copied = 0; | |
306 | long timeo; | |
307 | ||
308 | if (flags & MSG_OOB) | |
309 | return -EOPNOTSUPP; | |
310 | ||
311 | msg->msg_namelen = 0; | |
312 | ||
313 | BT_DBG("sk %p size %zu", sk, size); | |
314 | ||
315 | lock_sock(sk); | |
316 | ||
317 | target = sock_rcvlowat(sk, flags & MSG_WAITALL, size); | |
318 | timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT); | |
319 | ||
320 | do { | |
321 | struct sk_buff *skb; | |
322 | int chunk; | |
323 | ||
324 | skb = skb_dequeue(&sk->sk_receive_queue); | |
325 | if (!skb) { | |
326 | if (copied >= target) | |
327 | break; | |
328 | ||
5a08ecce AE |
329 | err = sock_error(sk); |
330 | if (err) | |
796c86ee MM |
331 | break; |
332 | if (sk->sk_shutdown & RCV_SHUTDOWN) | |
333 | break; | |
334 | ||
335 | err = -EAGAIN; | |
336 | if (!timeo) | |
337 | break; | |
338 | ||
339 | timeo = bt_sock_data_wait(sk, timeo); | |
340 | ||
341 | if (signal_pending(current)) { | |
342 | err = sock_intr_errno(timeo); | |
343 | goto out; | |
344 | } | |
345 | continue; | |
346 | } | |
347 | ||
348 | chunk = min_t(unsigned int, skb->len, size); | |
5b668eb3 | 349 | if (skb_copy_datagram_iovec(skb, 0, msg->msg_iov, chunk)) { |
796c86ee MM |
350 | skb_queue_head(&sk->sk_receive_queue, skb); |
351 | if (!copied) | |
352 | copied = -EFAULT; | |
353 | break; | |
354 | } | |
355 | copied += chunk; | |
356 | size -= chunk; | |
357 | ||
358 | sock_recv_ts_and_drops(msg, sk, skb); | |
359 | ||
360 | if (!(flags & MSG_PEEK)) { | |
5b668eb3 MM |
361 | int skb_len = skb_headlen(skb); |
362 | ||
363 | if (chunk <= skb_len) { | |
364 | __skb_pull(skb, chunk); | |
365 | } else { | |
366 | struct sk_buff *frag; | |
367 | ||
368 | __skb_pull(skb, skb_len); | |
369 | chunk -= skb_len; | |
370 | ||
371 | skb_walk_frags(skb, frag) { | |
372 | if (chunk <= frag->len) { | |
373 | /* Pulling partial data */ | |
374 | skb->len -= chunk; | |
375 | skb->data_len -= chunk; | |
376 | __skb_pull(frag, chunk); | |
377 | break; | |
378 | } else if (frag->len) { | |
379 | /* Pulling all frag data */ | |
380 | chunk -= frag->len; | |
381 | skb->len -= frag->len; | |
382 | skb->data_len -= frag->len; | |
383 | __skb_pull(frag, frag->len); | |
384 | } | |
385 | } | |
386 | } | |
387 | ||
796c86ee MM |
388 | if (skb->len) { |
389 | skb_queue_head(&sk->sk_receive_queue, skb); | |
390 | break; | |
391 | } | |
392 | kfree_skb(skb); | |
393 | ||
394 | } else { | |
395 | /* put message back and return */ | |
396 | skb_queue_head(&sk->sk_receive_queue, skb); | |
397 | break; | |
398 | } | |
399 | } while (size); | |
400 | ||
401 | out: | |
402 | release_sock(sk); | |
403 | return copied ? : err; | |
404 | } | |
405 | EXPORT_SYMBOL(bt_sock_stream_recvmsg); | |
406 | ||
1da177e4 LT |
407 | static inline unsigned int bt_accept_poll(struct sock *parent) |
408 | { | |
409 | struct list_head *p, *n; | |
410 | struct sock *sk; | |
411 | ||
412 | list_for_each_safe(p, n, &bt_sk(parent)->accept_q) { | |
413 | sk = (struct sock *) list_entry(p, struct bt_sock, accept_q); | |
d5f2d2be MH |
414 | if (sk->sk_state == BT_CONNECTED || |
415 | (bt_sk(parent)->defer_setup && | |
416 | sk->sk_state == BT_CONNECT2)) | |
1da177e4 LT |
417 | return POLLIN | POLLRDNORM; |
418 | } | |
419 | ||
420 | return 0; | |
421 | } | |
422 | ||
8ffd8784 | 423 | unsigned int bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait) |
1da177e4 LT |
424 | { |
425 | struct sock *sk = sock->sk; | |
426 | unsigned int mask = 0; | |
427 | ||
428 | BT_DBG("sock %p, sk %p", sock, sk); | |
429 | ||
aa395145 | 430 | poll_wait(file, sk_sleep(sk), wait); |
1da177e4 LT |
431 | |
432 | if (sk->sk_state == BT_LISTEN) | |
433 | return bt_accept_poll(sk); | |
434 | ||
435 | if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue)) | |
436 | mask |= POLLERR; | |
437 | ||
f348d70a | 438 | if (sk->sk_shutdown & RCV_SHUTDOWN) |
db40980f | 439 | mask |= POLLRDHUP | POLLIN | POLLRDNORM; |
f348d70a | 440 | |
1da177e4 LT |
441 | if (sk->sk_shutdown == SHUTDOWN_MASK) |
442 | mask |= POLLHUP; | |
443 | ||
db40980f | 444 | if (!skb_queue_empty(&sk->sk_receive_queue)) |
1da177e4 LT |
445 | mask |= POLLIN | POLLRDNORM; |
446 | ||
447 | if (sk->sk_state == BT_CLOSED) | |
448 | mask |= POLLHUP; | |
449 | ||
450 | if (sk->sk_state == BT_CONNECT || | |
451 | sk->sk_state == BT_CONNECT2 || | |
452 | sk->sk_state == BT_CONFIG) | |
453 | return mask; | |
454 | ||
455 | if (sock_writeable(sk)) | |
456 | mask |= POLLOUT | POLLWRNORM | POLLWRBAND; | |
457 | else | |
458 | set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); | |
459 | ||
460 | return mask; | |
461 | } | |
462 | EXPORT_SYMBOL(bt_sock_poll); | |
463 | ||
3241ad82 MH |
464 | int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) |
465 | { | |
466 | struct sock *sk = sock->sk; | |
43cbeee9 MH |
467 | struct sk_buff *skb; |
468 | long amount; | |
3241ad82 MH |
469 | int err; |
470 | ||
471 | BT_DBG("sk %p cmd %x arg %lx", sk, cmd, arg); | |
472 | ||
473 | switch (cmd) { | |
43cbeee9 MH |
474 | case TIOCOUTQ: |
475 | if (sk->sk_state == BT_LISTEN) | |
476 | return -EINVAL; | |
477 | ||
31e6d363 | 478 | amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk); |
43cbeee9 MH |
479 | if (amount < 0) |
480 | amount = 0; | |
481 | err = put_user(amount, (int __user *) arg); | |
482 | break; | |
483 | ||
484 | case TIOCINQ: | |
485 | if (sk->sk_state == BT_LISTEN) | |
486 | return -EINVAL; | |
487 | ||
488 | lock_sock(sk); | |
489 | skb = skb_peek(&sk->sk_receive_queue); | |
490 | amount = skb ? skb->len : 0; | |
491 | release_sock(sk); | |
492 | err = put_user(amount, (int __user *) arg); | |
493 | break; | |
494 | ||
3241ad82 MH |
495 | case SIOCGSTAMP: |
496 | err = sock_get_timestamp(sk, (struct timeval __user *) arg); | |
497 | break; | |
498 | ||
499 | case SIOCGSTAMPNS: | |
500 | err = sock_get_timestampns(sk, (struct timespec __user *) arg); | |
501 | break; | |
502 | ||
503 | default: | |
504 | err = -ENOIOCTLCMD; | |
505 | break; | |
506 | } | |
507 | ||
508 | return err; | |
509 | } | |
510 | EXPORT_SYMBOL(bt_sock_ioctl); | |
511 | ||
1da177e4 LT |
512 | int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo) |
513 | { | |
514 | DECLARE_WAITQUEUE(wait, current); | |
515 | int err = 0; | |
516 | ||
517 | BT_DBG("sk %p", sk); | |
518 | ||
aa395145 | 519 | add_wait_queue(sk_sleep(sk), &wait); |
9be4e3fb | 520 | set_current_state(TASK_INTERRUPTIBLE); |
1da177e4 | 521 | while (sk->sk_state != state) { |
1da177e4 | 522 | if (!timeo) { |
b4c612a4 | 523 | err = -EINPROGRESS; |
1da177e4 LT |
524 | break; |
525 | } | |
526 | ||
527 | if (signal_pending(current)) { | |
528 | err = sock_intr_errno(timeo); | |
529 | break; | |
530 | } | |
531 | ||
532 | release_sock(sk); | |
533 | timeo = schedule_timeout(timeo); | |
534 | lock_sock(sk); | |
9be4e3fb | 535 | set_current_state(TASK_INTERRUPTIBLE); |
1da177e4 | 536 | |
c1cbe4b7 BL |
537 | err = sock_error(sk); |
538 | if (err) | |
1da177e4 | 539 | break; |
1da177e4 | 540 | } |
9be4e3fb | 541 | __set_current_state(TASK_RUNNING); |
aa395145 | 542 | remove_wait_queue(sk_sleep(sk), &wait); |
1da177e4 LT |
543 | return err; |
544 | } | |
545 | EXPORT_SYMBOL(bt_sock_wait_state); | |
546 | ||
547 | static struct net_proto_family bt_sock_family_ops = { | |
548 | .owner = THIS_MODULE, | |
549 | .family = PF_BLUETOOTH, | |
550 | .create = bt_sock_create, | |
551 | }; | |
552 | ||
1da177e4 LT |
553 | static int __init bt_init(void) |
554 | { | |
27d35284 MH |
555 | int err; |
556 | ||
1da177e4 LT |
557 | BT_INFO("Core ver %s", VERSION); |
558 | ||
27d35284 MH |
559 | err = bt_sysfs_init(); |
560 | if (err < 0) | |
561 | return err; | |
1da177e4 | 562 | |
27d35284 MH |
563 | err = sock_register(&bt_sock_family_ops); |
564 | if (err < 0) { | |
565 | bt_sysfs_cleanup(); | |
566 | return err; | |
567 | } | |
1da177e4 | 568 | |
27d35284 | 569 | BT_INFO("HCI device and connection manager initialized"); |
1da177e4 | 570 | |
64274518 GP |
571 | err = hci_sock_init(); |
572 | if (err < 0) | |
573 | goto error; | |
574 | ||
575 | err = l2cap_init(); | |
0ed54dad | 576 | if (err < 0) |
64274518 | 577 | goto sock_err; |
64274518 GP |
578 | |
579 | err = sco_init(); | |
580 | if (err < 0) { | |
581 | l2cap_exit(); | |
582 | goto sock_err; | |
583 | } | |
1da177e4 LT |
584 | |
585 | return 0; | |
64274518 GP |
586 | |
587 | sock_err: | |
588 | hci_sock_cleanup(); | |
589 | ||
590 | error: | |
591 | sock_unregister(PF_BLUETOOTH); | |
592 | bt_sysfs_cleanup(); | |
593 | ||
594 | return err; | |
1da177e4 LT |
595 | } |
596 | ||
597 | static void __exit bt_exit(void) | |
598 | { | |
64274518 GP |
599 | |
600 | sco_exit(); | |
601 | ||
602 | l2cap_exit(); | |
603 | ||
1da177e4 LT |
604 | hci_sock_cleanup(); |
605 | ||
1da177e4 | 606 | sock_unregister(PF_BLUETOOTH); |
27d35284 MH |
607 | |
608 | bt_sysfs_cleanup(); | |
1da177e4 LT |
609 | } |
610 | ||
611 | subsys_initcall(bt_init); | |
612 | module_exit(bt_exit); | |
613 | ||
63fbd24e | 614 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1da177e4 LT |
615 | MODULE_DESCRIPTION("Bluetooth Core ver " VERSION); |
616 | MODULE_VERSION(VERSION); | |
617 | MODULE_LICENSE("GPL"); | |
618 | MODULE_ALIAS_NETPROTO(PF_BLUETOOTH); |