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 SCO sockets. */ | |
26 | ||
1da177e4 | 27 | #include <linux/module.h> |
aef7d97c MH |
28 | #include <linux/debugfs.h> |
29 | #include <linux/seq_file.h> | |
1da177e4 LT |
30 | |
31 | #include <net/bluetooth/bluetooth.h> | |
32 | #include <net/bluetooth/hci_core.h> | |
33 | #include <net/bluetooth/sco.h> | |
34 | ||
eb939922 | 35 | static bool disable_esco; |
1da177e4 | 36 | |
90ddc4f0 | 37 | static const struct proto_ops sco_sock_ops; |
1da177e4 LT |
38 | |
39 | static struct bt_sock_list sco_sk_list = { | |
d5fb2962 | 40 | .lock = __RW_LOCK_UNLOCKED(sco_sk_list.lock) |
1da177e4 LT |
41 | }; |
42 | ||
43 | static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent); | |
44 | static void sco_chan_del(struct sock *sk, int err); | |
45 | ||
1da177e4 LT |
46 | static void sco_sock_close(struct sock *sk); |
47 | static void sco_sock_kill(struct sock *sk); | |
48 | ||
49 | /* ---- SCO timers ---- */ | |
50 | static void sco_sock_timeout(unsigned long arg) | |
51 | { | |
52 | struct sock *sk = (struct sock *) arg; | |
53 | ||
54 | BT_DBG("sock %p state %d", sk, sk->sk_state); | |
55 | ||
56 | bh_lock_sock(sk); | |
57 | sk->sk_err = ETIMEDOUT; | |
58 | sk->sk_state_change(sk); | |
59 | bh_unlock_sock(sk); | |
60 | ||
61 | sco_sock_kill(sk); | |
62 | sock_put(sk); | |
63 | } | |
64 | ||
65 | static void sco_sock_set_timer(struct sock *sk, long timeout) | |
66 | { | |
67 | BT_DBG("sock %p state %d timeout %ld", sk, sk->sk_state, timeout); | |
68 | sk_reset_timer(sk, &sk->sk_timer, jiffies + timeout); | |
69 | } | |
70 | ||
71 | static void sco_sock_clear_timer(struct sock *sk) | |
72 | { | |
73 | BT_DBG("sock %p state %d", sk, sk->sk_state); | |
74 | sk_stop_timer(sk, &sk->sk_timer); | |
75 | } | |
76 | ||
1da177e4 | 77 | /* ---- SCO connections ---- */ |
519e42b3 | 78 | static struct sco_conn *sco_conn_add(struct hci_conn *hcon) |
1da177e4 LT |
79 | { |
80 | struct hci_dev *hdev = hcon->hdev; | |
25ea6db0 | 81 | struct sco_conn *conn = hcon->sco_data; |
1da177e4 | 82 | |
519e42b3 | 83 | if (conn) |
1da177e4 LT |
84 | return conn; |
85 | ||
c10cc5a9 | 86 | conn = kzalloc(sizeof(struct sco_conn), GFP_KERNEL); |
25ea6db0 | 87 | if (!conn) |
1da177e4 | 88 | return NULL; |
1da177e4 LT |
89 | |
90 | spin_lock_init(&conn->lock); | |
91 | ||
92 | hcon->sco_data = conn; | |
93 | conn->hcon = hcon; | |
94 | ||
95 | conn->src = &hdev->bdaddr; | |
96 | conn->dst = &hcon->dst; | |
97 | ||
98 | if (hdev->sco_mtu > 0) | |
99 | conn->mtu = hdev->sco_mtu; | |
100 | else | |
101 | conn->mtu = 60; | |
102 | ||
103 | BT_DBG("hcon %p conn %p", hcon, conn); | |
25ea6db0 | 104 | |
1da177e4 LT |
105 | return conn; |
106 | } | |
107 | ||
6039aa73 | 108 | static struct sock *sco_chan_get(struct sco_conn *conn) |
1da177e4 LT |
109 | { |
110 | struct sock *sk = NULL; | |
111 | sco_conn_lock(conn); | |
112 | sk = conn->sk; | |
113 | sco_conn_unlock(conn); | |
114 | return sk; | |
115 | } | |
116 | ||
117 | static int sco_conn_del(struct hci_conn *hcon, int err) | |
118 | { | |
735cbc47 | 119 | struct sco_conn *conn = hcon->sco_data; |
1da177e4 LT |
120 | struct sock *sk; |
121 | ||
735cbc47 | 122 | if (!conn) |
1da177e4 LT |
123 | return 0; |
124 | ||
125 | BT_DBG("hcon %p conn %p, err %d", hcon, conn, err); | |
126 | ||
127 | /* Kill socket */ | |
735cbc47 AE |
128 | sk = sco_chan_get(conn); |
129 | if (sk) { | |
1da177e4 LT |
130 | bh_lock_sock(sk); |
131 | sco_sock_clear_timer(sk); | |
132 | sco_chan_del(sk, err); | |
133 | bh_unlock_sock(sk); | |
134 | sco_sock_kill(sk); | |
135 | } | |
136 | ||
137 | hcon->sco_data = NULL; | |
138 | kfree(conn); | |
139 | return 0; | |
140 | } | |
141 | ||
6039aa73 GP |
142 | static int sco_chan_add(struct sco_conn *conn, struct sock *sk, |
143 | struct sock *parent) | |
1da177e4 LT |
144 | { |
145 | int err = 0; | |
146 | ||
147 | sco_conn_lock(conn); | |
b9dbdbc1 | 148 | if (conn->sk) |
1da177e4 | 149 | err = -EBUSY; |
b9dbdbc1 | 150 | else |
1da177e4 | 151 | __sco_chan_add(conn, sk, parent); |
b9dbdbc1 | 152 | |
1da177e4 LT |
153 | sco_conn_unlock(conn); |
154 | return err; | |
155 | } | |
156 | ||
157 | static int sco_connect(struct sock *sk) | |
158 | { | |
159 | bdaddr_t *src = &bt_sk(sk)->src; | |
160 | bdaddr_t *dst = &bt_sk(sk)->dst; | |
6fa3eb70 | 161 | __u16 pkt_type = sco_pi(sk)->pkt_type; |
1da177e4 LT |
162 | struct sco_conn *conn; |
163 | struct hci_conn *hcon; | |
164 | struct hci_dev *hdev; | |
b6a0dc82 | 165 | int err, type; |
1da177e4 | 166 | |
6ed93dc6 | 167 | BT_DBG("%pMR -> %pMR", src, dst); |
1da177e4 | 168 | |
735cbc47 AE |
169 | hdev = hci_get_route(dst, src); |
170 | if (!hdev) | |
1da177e4 LT |
171 | return -EHOSTUNREACH; |
172 | ||
09fd0de5 | 173 | hci_dev_lock(hdev); |
1da177e4 | 174 | |
7cb127d5 MH |
175 | if (lmp_esco_capable(hdev) && !disable_esco) |
176 | type = ESCO_LINK; | |
6fa3eb70 | 177 | else { |
7cb127d5 | 178 | type = SCO_LINK; |
6fa3eb70 S |
179 | pkt_type &= SCO_ESCO_MASK; |
180 | } | |
b6a0dc82 | 181 | |
6fa3eb70 S |
182 | hcon = hci_connect(hdev, type, pkt_type, dst, BDADDR_BREDR, |
183 | BT_SECURITY_LOW, HCI_AT_NO_BONDING); | |
30e76272 VT |
184 | if (IS_ERR(hcon)) { |
185 | err = PTR_ERR(hcon); | |
1da177e4 | 186 | goto done; |
30e76272 | 187 | } |
1da177e4 | 188 | |
519e42b3 | 189 | conn = sco_conn_add(hcon); |
1da177e4 | 190 | if (!conn) { |
76a68ba0 | 191 | hci_conn_drop(hcon); |
30e76272 | 192 | err = -ENOMEM; |
1da177e4 LT |
193 | goto done; |
194 | } | |
195 | ||
196 | /* Update source addr of the socket */ | |
197 | bacpy(src, conn->src); | |
198 | ||
199 | err = sco_chan_add(conn, sk, NULL); | |
200 | if (err) | |
201 | goto done; | |
202 | ||
203 | if (hcon->state == BT_CONNECTED) { | |
204 | sco_sock_clear_timer(sk); | |
205 | sk->sk_state = BT_CONNECTED; | |
206 | } else { | |
207 | sk->sk_state = BT_CONNECT; | |
208 | sco_sock_set_timer(sk, sk->sk_sndtimeo); | |
209 | } | |
b6a0dc82 | 210 | |
1da177e4 | 211 | done: |
09fd0de5 | 212 | hci_dev_unlock(hdev); |
1da177e4 LT |
213 | hci_dev_put(hdev); |
214 | return err; | |
215 | } | |
216 | ||
6039aa73 | 217 | static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len) |
1da177e4 LT |
218 | { |
219 | struct sco_conn *conn = sco_pi(sk)->conn; | |
220 | struct sk_buff *skb; | |
088ce088 | 221 | int err; |
1da177e4 LT |
222 | |
223 | /* Check outgoing MTU */ | |
224 | if (len > conn->mtu) | |
225 | return -EINVAL; | |
226 | ||
227 | BT_DBG("sk %p len %d", sk, len); | |
228 | ||
088ce088 | 229 | skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); |
b9dbdbc1 | 230 | if (!skb) |
1da177e4 LT |
231 | return err; |
232 | ||
088ce088 | 233 | if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { |
b9dbdbc1 GP |
234 | kfree_skb(skb); |
235 | return -EFAULT; | |
1da177e4 LT |
236 | } |
237 | ||
0d861d8b | 238 | hci_send_sco(conn->hcon, skb); |
1da177e4 | 239 | |
088ce088 | 240 | return len; |
1da177e4 LT |
241 | } |
242 | ||
6039aa73 | 243 | static void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb) |
1da177e4 LT |
244 | { |
245 | struct sock *sk = sco_chan_get(conn); | |
246 | ||
247 | if (!sk) | |
248 | goto drop; | |
249 | ||
250 | BT_DBG("sk %p len %d", sk, skb->len); | |
251 | ||
252 | if (sk->sk_state != BT_CONNECTED) | |
253 | goto drop; | |
254 | ||
255 | if (!sock_queue_rcv_skb(sk, skb)) | |
256 | return; | |
257 | ||
258 | drop: | |
259 | kfree_skb(skb); | |
1da177e4 LT |
260 | } |
261 | ||
262 | /* -------- Socket interface ---------- */ | |
fb334059 | 263 | static struct sock *__sco_get_sock_listen_by_addr(bdaddr_t *ba) |
1da177e4 | 264 | { |
fb334059 MH |
265 | struct sock *sk; |
266 | ||
b67bfe0d | 267 | sk_for_each(sk, &sco_sk_list.head) { |
fb334059 MH |
268 | if (sk->sk_state != BT_LISTEN) |
269 | continue; | |
1da177e4 | 270 | |
1da177e4 | 271 | if (!bacmp(&bt_sk(sk)->src, ba)) |
fb334059 MH |
272 | return sk; |
273 | } | |
274 | ||
275 | return NULL; | |
1da177e4 LT |
276 | } |
277 | ||
278 | /* Find socket listening on source bdaddr. | |
279 | * Returns closest match. | |
280 | */ | |
281 | static struct sock *sco_get_sock_listen(bdaddr_t *src) | |
282 | { | |
283 | struct sock *sk = NULL, *sk1 = NULL; | |
1da177e4 LT |
284 | |
285 | read_lock(&sco_sk_list.lock); | |
286 | ||
b67bfe0d | 287 | sk_for_each(sk, &sco_sk_list.head) { |
1da177e4 LT |
288 | if (sk->sk_state != BT_LISTEN) |
289 | continue; | |
290 | ||
291 | /* Exact match. */ | |
292 | if (!bacmp(&bt_sk(sk)->src, src)) | |
293 | break; | |
294 | ||
295 | /* Closest match */ | |
296 | if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) | |
297 | sk1 = sk; | |
298 | } | |
299 | ||
300 | read_unlock(&sco_sk_list.lock); | |
301 | ||
b67bfe0d | 302 | return sk ? sk : sk1; |
1da177e4 LT |
303 | } |
304 | ||
305 | static void sco_sock_destruct(struct sock *sk) | |
306 | { | |
307 | BT_DBG("sk %p", sk); | |
308 | ||
309 | skb_queue_purge(&sk->sk_receive_queue); | |
310 | skb_queue_purge(&sk->sk_write_queue); | |
311 | } | |
312 | ||
313 | static void sco_sock_cleanup_listen(struct sock *parent) | |
314 | { | |
315 | struct sock *sk; | |
316 | ||
317 | BT_DBG("parent %p", parent); | |
318 | ||
319 | /* Close not yet accepted channels */ | |
320 | while ((sk = bt_accept_dequeue(parent, NULL))) { | |
321 | sco_sock_close(sk); | |
322 | sco_sock_kill(sk); | |
323 | } | |
324 | ||
325 | parent->sk_state = BT_CLOSED; | |
326 | sock_set_flag(parent, SOCK_ZAPPED); | |
327 | } | |
328 | ||
329 | /* Kill socket (only if zapped and orphan) | |
330 | * Must be called on unlocked socket. | |
331 | */ | |
332 | static void sco_sock_kill(struct sock *sk) | |
333 | { | |
334 | if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket) | |
335 | return; | |
336 | ||
337 | BT_DBG("sk %p state %d", sk, sk->sk_state); | |
338 | ||
339 | /* Kill poor orphan */ | |
340 | bt_sock_unlink(&sco_sk_list, sk); | |
341 | sock_set_flag(sk, SOCK_DEAD); | |
342 | sock_put(sk); | |
343 | } | |
344 | ||
fd0b3ff7 | 345 | static void __sco_sock_close(struct sock *sk) |
1da177e4 | 346 | { |
fd0b3ff7 | 347 | BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket); |
1da177e4 LT |
348 | |
349 | switch (sk->sk_state) { | |
350 | case BT_LISTEN: | |
351 | sco_sock_cleanup_listen(sk); | |
352 | break; | |
353 | ||
354 | case BT_CONNECTED: | |
355 | case BT_CONFIG: | |
b7e98b51 | 356 | if (sco_pi(sk)->conn->hcon) { |
4a77708b LAD |
357 | sk->sk_state = BT_DISCONN; |
358 | sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT); | |
76a68ba0 | 359 | hci_conn_drop(sco_pi(sk)->conn->hcon); |
4a77708b LAD |
360 | sco_pi(sk)->conn->hcon = NULL; |
361 | } else | |
362 | sco_chan_del(sk, ECONNRESET); | |
363 | break; | |
364 | ||
eb20ff9c | 365 | case BT_CONNECT2: |
1da177e4 LT |
366 | case BT_CONNECT: |
367 | case BT_DISCONN: | |
368 | sco_chan_del(sk, ECONNRESET); | |
369 | break; | |
370 | ||
371 | default: | |
372 | sock_set_flag(sk, SOCK_ZAPPED); | |
373 | break; | |
3ff50b79 | 374 | } |
fd0b3ff7 | 375 | } |
1da177e4 | 376 | |
fd0b3ff7 MH |
377 | /* Must be called on unlocked socket. */ |
378 | static void sco_sock_close(struct sock *sk) | |
379 | { | |
380 | sco_sock_clear_timer(sk); | |
381 | lock_sock(sk); | |
382 | __sco_sock_close(sk); | |
1da177e4 | 383 | release_sock(sk); |
1da177e4 LT |
384 | sco_sock_kill(sk); |
385 | } | |
386 | ||
387 | static void sco_sock_init(struct sock *sk, struct sock *parent) | |
388 | { | |
389 | BT_DBG("sk %p", sk); | |
390 | ||
6230c9b4 | 391 | if (parent) { |
1da177e4 | 392 | sk->sk_type = parent->sk_type; |
20714bfe | 393 | bt_sk(sk)->flags = bt_sk(parent)->flags; |
6230c9b4 PM |
394 | security_sk_clone(parent, sk); |
395 | } | |
1da177e4 LT |
396 | } |
397 | ||
398 | static struct proto sco_proto = { | |
399 | .name = "SCO", | |
400 | .owner = THIS_MODULE, | |
401 | .obj_size = sizeof(struct sco_pinfo) | |
402 | }; | |
403 | ||
1b8d7ae4 | 404 | static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio) |
1da177e4 LT |
405 | { |
406 | struct sock *sk; | |
407 | ||
6257ff21 | 408 | sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto); |
1da177e4 LT |
409 | if (!sk) |
410 | return NULL; | |
411 | ||
412 | sock_init_data(sock, sk); | |
413 | INIT_LIST_HEAD(&bt_sk(sk)->accept_q); | |
414 | ||
415 | sk->sk_destruct = sco_sock_destruct; | |
416 | sk->sk_sndtimeo = SCO_CONN_TIMEOUT; | |
417 | ||
418 | sock_reset_flag(sk, SOCK_ZAPPED); | |
419 | ||
420 | sk->sk_protocol = proto; | |
421 | sk->sk_state = BT_OPEN; | |
422 | ||
b24b8a24 | 423 | setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk); |
1da177e4 LT |
424 | |
425 | bt_sock_link(&sco_sk_list, sk); | |
426 | return sk; | |
427 | } | |
428 | ||
3f378b68 EP |
429 | static int sco_sock_create(struct net *net, struct socket *sock, int protocol, |
430 | int kern) | |
1da177e4 LT |
431 | { |
432 | struct sock *sk; | |
433 | ||
434 | BT_DBG("sock %p", sock); | |
435 | ||
436 | sock->state = SS_UNCONNECTED; | |
437 | ||
438 | if (sock->type != SOCK_SEQPACKET) | |
439 | return -ESOCKTNOSUPPORT; | |
440 | ||
441 | sock->ops = &sco_sock_ops; | |
442 | ||
1b8d7ae4 | 443 | sk = sco_sock_alloc(net, sock, protocol, GFP_ATOMIC); |
74da626a | 444 | if (!sk) |
1da177e4 LT |
445 | return -ENOMEM; |
446 | ||
447 | sco_sock_init(sk, NULL); | |
448 | return 0; | |
449 | } | |
450 | ||
6fa3eb70 | 451 | static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) |
1da177e4 | 452 | { |
6fa3eb70 | 453 | struct sockaddr_sco sa; |
1da177e4 | 454 | struct sock *sk = sock->sk; |
6fa3eb70 | 455 | int len, err = 0; |
1da177e4 | 456 | |
6fa3eb70 | 457 | BT_DBG("sk %p %pMR", sk, &sa.sco_bdaddr); |
1da177e4 LT |
458 | |
459 | if (!addr || addr->sa_family != AF_BLUETOOTH) | |
460 | return -EINVAL; | |
461 | ||
6fa3eb70 S |
462 | memset(&sa, 0, sizeof(sa)); |
463 | len = min_t(unsigned int, sizeof(sa), alen); | |
464 | memcpy(&sa, addr, len); | |
465 | ||
1da177e4 LT |
466 | lock_sock(sk); |
467 | ||
468 | if (sk->sk_state != BT_OPEN) { | |
469 | err = -EBADFD; | |
470 | goto done; | |
471 | } | |
472 | ||
8ed21f7e MH |
473 | if (sk->sk_type != SOCK_SEQPACKET) { |
474 | err = -EINVAL; | |
475 | goto done; | |
1da177e4 LT |
476 | } |
477 | ||
6fa3eb70 S |
478 | bacpy(&bt_sk(sk)->src, &sa.sco_bdaddr); |
479 | sco_pi(sk)->pkt_type = sa.sco_pkt_type; | |
8ed21f7e MH |
480 | |
481 | sk->sk_state = BT_BOUND; | |
1da177e4 LT |
482 | |
483 | done: | |
484 | release_sock(sk); | |
485 | return err; | |
486 | } | |
487 | ||
488 | static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags) | |
489 | { | |
1da177e4 | 490 | struct sock *sk = sock->sk; |
6fa3eb70 S |
491 | struct sockaddr_sco sa; |
492 | int len, err; | |
1da177e4 LT |
493 | |
494 | BT_DBG("sk %p", sk); | |
495 | ||
6fa3eb70 | 496 | if (!addr || addr->sa_family != AF_BLUETOOTH) |
1da177e4 LT |
497 | return -EINVAL; |
498 | ||
6fa3eb70 S |
499 | memset(&sa, 0, sizeof(sa)); |
500 | len = min_t(unsigned int, sizeof(sa), alen); | |
501 | memcpy(&sa, addr, len); | |
1da177e4 LT |
502 | |
503 | lock_sock(sk); | |
504 | ||
6fa3eb70 S |
505 | if (sk->sk_type != SOCK_SEQPACKET) { |
506 | err = -EINVAL; | |
507 | goto done; | |
508 | } | |
509 | ||
510 | if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) { | |
511 | err = -EBADFD; | |
512 | goto done; | |
513 | } | |
514 | ||
1da177e4 | 515 | /* Set destination address and psm */ |
6fa3eb70 S |
516 | bacpy(&bt_sk(sk)->dst, &sa.sco_bdaddr); |
517 | sco_pi(sk)->pkt_type = sa.sco_pkt_type; | |
1da177e4 | 518 | |
735cbc47 AE |
519 | err = sco_connect(sk); |
520 | if (err) | |
1da177e4 LT |
521 | goto done; |
522 | ||
8e87d142 | 523 | err = bt_sock_wait_state(sk, BT_CONNECTED, |
be7c2b99 | 524 | sock_sndtimeo(sk, flags & O_NONBLOCK)); |
1da177e4 LT |
525 | |
526 | done: | |
527 | release_sock(sk); | |
528 | return err; | |
529 | } | |
530 | ||
531 | static int sco_sock_listen(struct socket *sock, int backlog) | |
532 | { | |
533 | struct sock *sk = sock->sk; | |
fb334059 | 534 | bdaddr_t *src = &bt_sk(sk)->src; |
1da177e4 LT |
535 | int err = 0; |
536 | ||
537 | BT_DBG("sk %p backlog %d", sk, backlog); | |
538 | ||
539 | lock_sock(sk); | |
540 | ||
7d5d775a | 541 | if (sk->sk_state != BT_BOUND) { |
1da177e4 LT |
542 | err = -EBADFD; |
543 | goto done; | |
544 | } | |
545 | ||
7d5d775a MH |
546 | if (sk->sk_type != SOCK_SEQPACKET) { |
547 | err = -EINVAL; | |
548 | goto done; | |
549 | } | |
550 | ||
fb334059 MH |
551 | write_lock(&sco_sk_list.lock); |
552 | ||
553 | if (__sco_get_sock_listen_by_addr(src)) { | |
554 | err = -EADDRINUSE; | |
555 | goto unlock; | |
556 | } | |
557 | ||
1da177e4 LT |
558 | sk->sk_max_ack_backlog = backlog; |
559 | sk->sk_ack_backlog = 0; | |
fb334059 | 560 | |
1da177e4 LT |
561 | sk->sk_state = BT_LISTEN; |
562 | ||
fb334059 MH |
563 | unlock: |
564 | write_unlock(&sco_sk_list.lock); | |
565 | ||
1da177e4 LT |
566 | done: |
567 | release_sock(sk); | |
568 | return err; | |
569 | } | |
570 | ||
571 | static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags) | |
572 | { | |
573 | DECLARE_WAITQUEUE(wait, current); | |
574 | struct sock *sk = sock->sk, *ch; | |
575 | long timeo; | |
576 | int err = 0; | |
577 | ||
578 | lock_sock(sk); | |
579 | ||
1da177e4 LT |
580 | timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK); |
581 | ||
582 | BT_DBG("sk %p timeo %ld", sk, timeo); | |
583 | ||
584 | /* Wait for an incoming connection. (wake-one). */ | |
aa395145 | 585 | add_wait_queue_exclusive(sk_sleep(sk), &wait); |
552b0d3c | 586 | while (1) { |
1da177e4 | 587 | set_current_state(TASK_INTERRUPTIBLE); |
552b0d3c PH |
588 | |
589 | if (sk->sk_state != BT_LISTEN) { | |
590 | err = -EBADFD; | |
1da177e4 LT |
591 | break; |
592 | } | |
593 | ||
552b0d3c PH |
594 | ch = bt_accept_dequeue(sk, newsock); |
595 | if (ch) | |
596 | break; | |
1da177e4 | 597 | |
552b0d3c PH |
598 | if (!timeo) { |
599 | err = -EAGAIN; | |
1da177e4 LT |
600 | break; |
601 | } | |
602 | ||
603 | if (signal_pending(current)) { | |
604 | err = sock_intr_errno(timeo); | |
605 | break; | |
606 | } | |
552b0d3c PH |
607 | |
608 | release_sock(sk); | |
609 | timeo = schedule_timeout(timeo); | |
610 | lock_sock(sk); | |
1da177e4 | 611 | } |
552b0d3c | 612 | __set_current_state(TASK_RUNNING); |
aa395145 | 613 | remove_wait_queue(sk_sleep(sk), &wait); |
1da177e4 LT |
614 | |
615 | if (err) | |
616 | goto done; | |
617 | ||
618 | newsock->state = SS_CONNECTED; | |
619 | ||
620 | BT_DBG("new socket %p", ch); | |
621 | ||
622 | done: | |
623 | release_sock(sk); | |
624 | return err; | |
625 | } | |
626 | ||
627 | static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer) | |
628 | { | |
629 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
630 | struct sock *sk = sock->sk; | |
631 | ||
632 | BT_DBG("sock %p, sk %p", sock, sk); | |
633 | ||
634 | addr->sa_family = AF_BLUETOOTH; | |
635 | *len = sizeof(struct sockaddr_sco); | |
636 | ||
637 | if (peer) | |
638 | bacpy(&sa->sco_bdaddr, &bt_sk(sk)->dst); | |
639 | else | |
640 | bacpy(&sa->sco_bdaddr, &bt_sk(sk)->src); | |
6fa3eb70 | 641 | sa->sco_pkt_type = sco_pi(sk)->pkt_type; |
1da177e4 LT |
642 | |
643 | return 0; | |
644 | } | |
645 | ||
8e87d142 | 646 | static int sco_sock_sendmsg(struct kiocb *iocb, struct socket *sock, |
1da177e4 LT |
647 | struct msghdr *msg, size_t len) |
648 | { | |
649 | struct sock *sk = sock->sk; | |
b9dbdbc1 | 650 | int err; |
1da177e4 LT |
651 | |
652 | BT_DBG("sock %p, sk %p", sock, sk); | |
653 | ||
c1cbe4b7 BL |
654 | err = sock_error(sk); |
655 | if (err) | |
656 | return err; | |
1da177e4 LT |
657 | |
658 | if (msg->msg_flags & MSG_OOB) | |
659 | return -EOPNOTSUPP; | |
660 | ||
661 | lock_sock(sk); | |
662 | ||
663 | if (sk->sk_state == BT_CONNECTED) | |
664 | err = sco_send_frame(sk, msg, len); | |
665 | else | |
666 | err = -ENOTCONN; | |
667 | ||
668 | release_sock(sk); | |
669 | return err; | |
670 | } | |
671 | ||
fa5513be FD |
672 | static void sco_conn_defer_accept(struct hci_conn *conn, int mask) |
673 | { | |
674 | struct hci_dev *hdev = conn->hdev; | |
675 | ||
676 | BT_DBG("conn %p", conn); | |
677 | ||
678 | conn->state = BT_CONFIG; | |
679 | ||
680 | if (!lmp_esco_capable(hdev)) { | |
681 | struct hci_cp_accept_conn_req cp; | |
682 | ||
683 | bacpy(&cp.bdaddr, &conn->dst); | |
684 | ||
685 | if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER)) | |
686 | cp.role = 0x00; /* Become master */ | |
687 | else | |
688 | cp.role = 0x01; /* Remain slave */ | |
689 | ||
690 | hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp); | |
691 | } else { | |
692 | struct hci_cp_accept_sync_conn_req cp; | |
693 | ||
694 | bacpy(&cp.bdaddr, &conn->dst); | |
695 | cp.pkt_type = cpu_to_le16(conn->pkt_type); | |
696 | ||
697 | cp.tx_bandwidth = __constant_cpu_to_le32(0x00001f40); | |
698 | cp.rx_bandwidth = __constant_cpu_to_le32(0x00001f40); | |
699 | cp.max_latency = __constant_cpu_to_le16(0xffff); | |
700 | cp.content_format = cpu_to_le16(hdev->voice_setting); | |
701 | cp.retrans_effort = 0xff; | |
702 | ||
703 | hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, | |
704 | sizeof(cp), &cp); | |
705 | } | |
706 | } | |
707 | ||
20714bfe FD |
708 | static int sco_sock_recvmsg(struct kiocb *iocb, struct socket *sock, |
709 | struct msghdr *msg, size_t len, int flags) | |
710 | { | |
711 | struct sock *sk = sock->sk; | |
712 | struct sco_pinfo *pi = sco_pi(sk); | |
713 | ||
714 | lock_sock(sk); | |
715 | ||
716 | if (sk->sk_state == BT_CONNECT2 && | |
717 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { | |
fa5513be | 718 | sco_conn_defer_accept(pi->conn->hcon, 0); |
20714bfe FD |
719 | sk->sk_state = BT_CONFIG; |
720 | ||
721 | release_sock(sk); | |
722 | return 0; | |
723 | } | |
724 | ||
725 | release_sock(sk); | |
726 | ||
727 | return bt_sock_recvmsg(iocb, sock, msg, len, flags); | |
728 | } | |
729 | ||
b7058842 | 730 | static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) |
1da177e4 LT |
731 | { |
732 | struct sock *sk = sock->sk; | |
733 | int err = 0; | |
b96e9c67 | 734 | u32 opt; |
1da177e4 LT |
735 | |
736 | BT_DBG("sk %p", sk); | |
737 | ||
738 | lock_sock(sk); | |
739 | ||
740 | switch (optname) { | |
b96e9c67 FD |
741 | |
742 | case BT_DEFER_SETUP: | |
743 | if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) { | |
744 | err = -EINVAL; | |
745 | break; | |
746 | } | |
747 | ||
748 | if (get_user(opt, (u32 __user *) optval)) { | |
749 | err = -EFAULT; | |
750 | break; | |
751 | } | |
752 | ||
753 | if (opt) | |
754 | set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); | |
755 | else | |
756 | clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); | |
757 | break; | |
758 | ||
1da177e4 LT |
759 | default: |
760 | err = -ENOPROTOOPT; | |
761 | break; | |
762 | } | |
763 | ||
764 | release_sock(sk); | |
765 | return err; | |
766 | } | |
767 | ||
d58daf42 | 768 | static int sco_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen) |
1da177e4 LT |
769 | { |
770 | struct sock *sk = sock->sk; | |
771 | struct sco_options opts; | |
772 | struct sco_conninfo cinfo; | |
8e87d142 | 773 | int len, err = 0; |
1da177e4 LT |
774 | |
775 | BT_DBG("sk %p", sk); | |
776 | ||
777 | if (get_user(len, optlen)) | |
778 | return -EFAULT; | |
779 | ||
780 | lock_sock(sk); | |
781 | ||
782 | switch (optname) { | |
783 | case SCO_OPTIONS: | |
784 | if (sk->sk_state != BT_CONNECTED) { | |
785 | err = -ENOTCONN; | |
786 | break; | |
787 | } | |
788 | ||
789 | opts.mtu = sco_pi(sk)->conn->mtu; | |
790 | ||
791 | BT_DBG("mtu %d", opts.mtu); | |
792 | ||
793 | len = min_t(unsigned int, len, sizeof(opts)); | |
794 | if (copy_to_user(optval, (char *)&opts, len)) | |
795 | err = -EFAULT; | |
796 | ||
797 | break; | |
798 | ||
799 | case SCO_CONNINFO: | |
800 | if (sk->sk_state != BT_CONNECTED) { | |
801 | err = -ENOTCONN; | |
802 | break; | |
803 | } | |
804 | ||
c4c896e1 | 805 | memset(&cinfo, 0, sizeof(cinfo)); |
1da177e4 LT |
806 | cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle; |
807 | memcpy(cinfo.dev_class, sco_pi(sk)->conn->hcon->dev_class, 3); | |
808 | ||
809 | len = min_t(unsigned int, len, sizeof(cinfo)); | |
810 | if (copy_to_user(optval, (char *)&cinfo, len)) | |
811 | err = -EFAULT; | |
812 | ||
813 | break; | |
814 | ||
815 | default: | |
816 | err = -ENOPROTOOPT; | |
817 | break; | |
818 | } | |
819 | ||
820 | release_sock(sk); | |
821 | return err; | |
822 | } | |
823 | ||
d58daf42 MH |
824 | static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen) |
825 | { | |
826 | struct sock *sk = sock->sk; | |
827 | int len, err = 0; | |
828 | ||
829 | BT_DBG("sk %p", sk); | |
830 | ||
831 | if (level == SOL_SCO) | |
832 | return sco_sock_getsockopt_old(sock, optname, optval, optlen); | |
833 | ||
834 | if (get_user(len, optlen)) | |
835 | return -EFAULT; | |
836 | ||
837 | lock_sock(sk); | |
838 | ||
839 | switch (optname) { | |
b96e9c67 FD |
840 | |
841 | case BT_DEFER_SETUP: | |
842 | if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) { | |
843 | err = -EINVAL; | |
844 | break; | |
845 | } | |
846 | ||
847 | if (put_user(test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags), | |
848 | (u32 __user *) optval)) | |
849 | err = -EFAULT; | |
850 | ||
851 | break; | |
852 | ||
d58daf42 MH |
853 | default: |
854 | err = -ENOPROTOOPT; | |
855 | break; | |
856 | } | |
857 | ||
858 | release_sock(sk); | |
859 | return err; | |
860 | } | |
861 | ||
fd0b3ff7 MH |
862 | static int sco_sock_shutdown(struct socket *sock, int how) |
863 | { | |
864 | struct sock *sk = sock->sk; | |
865 | int err = 0; | |
866 | ||
867 | BT_DBG("sock %p, sk %p", sock, sk); | |
868 | ||
869 | if (!sk) | |
870 | return 0; | |
871 | ||
872 | lock_sock(sk); | |
873 | if (!sk->sk_shutdown) { | |
874 | sk->sk_shutdown = SHUTDOWN_MASK; | |
875 | sco_sock_clear_timer(sk); | |
876 | __sco_sock_close(sk); | |
877 | ||
819f3e7a VD |
878 | if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime && |
879 | !(current->flags & PF_EXITING)) | |
fd0b3ff7 | 880 | err = bt_sock_wait_state(sk, BT_CLOSED, |
be7c2b99 | 881 | sk->sk_lingertime); |
fd0b3ff7 MH |
882 | } |
883 | release_sock(sk); | |
884 | return err; | |
885 | } | |
886 | ||
1da177e4 LT |
887 | static int sco_sock_release(struct socket *sock) |
888 | { | |
889 | struct sock *sk = sock->sk; | |
890 | int err = 0; | |
891 | ||
892 | BT_DBG("sock %p, sk %p", sock, sk); | |
893 | ||
894 | if (!sk) | |
895 | return 0; | |
896 | ||
897 | sco_sock_close(sk); | |
898 | ||
819f3e7a VD |
899 | if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime && |
900 | !(current->flags & PF_EXITING)) { | |
1da177e4 LT |
901 | lock_sock(sk); |
902 | err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); | |
903 | release_sock(sk); | |
904 | } | |
905 | ||
906 | sock_orphan(sk); | |
907 | sco_sock_kill(sk); | |
908 | return err; | |
909 | } | |
910 | ||
911 | static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent) | |
912 | { | |
913 | BT_DBG("conn %p", conn); | |
914 | ||
915 | sco_pi(sk)->conn = conn; | |
916 | conn->sk = sk; | |
917 | ||
918 | if (parent) | |
919 | bt_accept_enqueue(parent, sk); | |
920 | } | |
921 | ||
8e87d142 | 922 | /* Delete channel. |
1da177e4 LT |
923 | * Must be called on the locked socket. */ |
924 | static void sco_chan_del(struct sock *sk, int err) | |
925 | { | |
926 | struct sco_conn *conn; | |
927 | ||
928 | conn = sco_pi(sk)->conn; | |
929 | ||
930 | BT_DBG("sk %p, conn %p, err %d", sk, conn, err); | |
931 | ||
0b27a4b9 GP |
932 | if (conn) { |
933 | sco_conn_lock(conn); | |
934 | conn->sk = NULL; | |
935 | sco_pi(sk)->conn = NULL; | |
936 | sco_conn_unlock(conn); | |
937 | ||
938 | if (conn->hcon) | |
76a68ba0 | 939 | hci_conn_drop(conn->hcon); |
0b27a4b9 GP |
940 | } |
941 | ||
1da177e4 LT |
942 | sk->sk_state = BT_CLOSED; |
943 | sk->sk_err = err; | |
944 | sk->sk_state_change(sk); | |
945 | ||
946 | sock_set_flag(sk, SOCK_ZAPPED); | |
947 | } | |
948 | ||
949 | static void sco_conn_ready(struct sco_conn *conn) | |
950 | { | |
735cbc47 AE |
951 | struct sock *parent; |
952 | struct sock *sk = conn->sk; | |
1da177e4 LT |
953 | |
954 | BT_DBG("conn %p", conn); | |
955 | ||
735cbc47 | 956 | if (sk) { |
1da177e4 LT |
957 | sco_sock_clear_timer(sk); |
958 | bh_lock_sock(sk); | |
959 | sk->sk_state = BT_CONNECTED; | |
960 | sk->sk_state_change(sk); | |
961 | bh_unlock_sock(sk); | |
962 | } else { | |
40528088 AG |
963 | sco_conn_lock(conn); |
964 | ||
1da177e4 | 965 | parent = sco_get_sock_listen(conn->src); |
40528088 AG |
966 | if (!parent) { |
967 | sco_conn_unlock(conn); | |
968 | return; | |
969 | } | |
1da177e4 LT |
970 | |
971 | bh_lock_sock(parent); | |
972 | ||
b9dbdbc1 | 973 | sk = sco_sock_alloc(sock_net(parent), NULL, |
be7c2b99 | 974 | BTPROTO_SCO, GFP_ATOMIC); |
1da177e4 LT |
975 | if (!sk) { |
976 | bh_unlock_sock(parent); | |
40528088 AG |
977 | sco_conn_unlock(conn); |
978 | return; | |
1da177e4 LT |
979 | } |
980 | ||
981 | sco_sock_init(sk, parent); | |
982 | ||
983 | bacpy(&bt_sk(sk)->src, conn->src); | |
984 | bacpy(&bt_sk(sk)->dst, conn->dst); | |
985 | ||
986 | hci_conn_hold(conn->hcon); | |
987 | __sco_chan_add(conn, sk, parent); | |
988 | ||
20714bfe FD |
989 | if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags)) |
990 | sk->sk_state = BT_CONNECT2; | |
991 | else | |
992 | sk->sk_state = BT_CONNECTED; | |
1da177e4 LT |
993 | |
994 | /* Wake up parent */ | |
995 | parent->sk_data_ready(parent, 1); | |
996 | ||
997 | bh_unlock_sock(parent); | |
1da177e4 | 998 | |
40528088 AG |
999 | sco_conn_unlock(conn); |
1000 | } | |
1da177e4 LT |
1001 | } |
1002 | ||
1003 | /* ----- SCO interface with lower layer (HCI) ----- */ | |
20714bfe | 1004 | int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags) |
1da177e4 | 1005 | { |
fc5fef61 | 1006 | struct sock *sk; |
71aeeaa1 MH |
1007 | int lm = 0; |
1008 | ||
6ed93dc6 | 1009 | BT_DBG("hdev %s, bdaddr %pMR", hdev->name, bdaddr); |
1da177e4 | 1010 | |
71aeeaa1 MH |
1011 | /* Find listening sockets */ |
1012 | read_lock(&sco_sk_list.lock); | |
b67bfe0d | 1013 | sk_for_each(sk, &sco_sk_list.head) { |
71aeeaa1 MH |
1014 | if (sk->sk_state != BT_LISTEN) |
1015 | continue; | |
1016 | ||
1017 | if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) || | |
be7c2b99 | 1018 | !bacmp(&bt_sk(sk)->src, BDADDR_ANY)) { |
71aeeaa1 | 1019 | lm |= HCI_LM_ACCEPT; |
20714bfe FD |
1020 | |
1021 | if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) | |
1022 | *flags |= HCI_PROTO_DEFER; | |
71aeeaa1 MH |
1023 | break; |
1024 | } | |
1025 | } | |
1026 | read_unlock(&sco_sk_list.lock); | |
1027 | ||
1028 | return lm; | |
1da177e4 LT |
1029 | } |
1030 | ||
9e664631 | 1031 | void sco_connect_cfm(struct hci_conn *hcon, __u8 status) |
1da177e4 | 1032 | { |
6ed93dc6 | 1033 | BT_DBG("hcon %p bdaddr %pMR status %d", hcon, &hcon->dst, status); |
1da177e4 LT |
1034 | if (!status) { |
1035 | struct sco_conn *conn; | |
1036 | ||
519e42b3 | 1037 | conn = sco_conn_add(hcon); |
1da177e4 LT |
1038 | if (conn) |
1039 | sco_conn_ready(conn); | |
8e87d142 | 1040 | } else |
e175072f | 1041 | sco_conn_del(hcon, bt_to_errno(status)); |
1da177e4 LT |
1042 | } |
1043 | ||
9e664631 | 1044 | void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason) |
1da177e4 LT |
1045 | { |
1046 | BT_DBG("hcon %p reason %d", hcon, reason); | |
1047 | ||
e175072f | 1048 | sco_conn_del(hcon, bt_to_errno(reason)); |
1da177e4 LT |
1049 | } |
1050 | ||
686ebf28 | 1051 | int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) |
1da177e4 LT |
1052 | { |
1053 | struct sco_conn *conn = hcon->sco_data; | |
1054 | ||
1055 | if (!conn) | |
1056 | goto drop; | |
1057 | ||
1058 | BT_DBG("conn %p len %d", conn, skb->len); | |
1059 | ||
1060 | if (skb->len) { | |
1061 | sco_recv_frame(conn, skb); | |
1062 | return 0; | |
1063 | } | |
1064 | ||
1065 | drop: | |
8e87d142 | 1066 | kfree_skb(skb); |
1da177e4 LT |
1067 | return 0; |
1068 | } | |
1069 | ||
aef7d97c | 1070 | static int sco_debugfs_show(struct seq_file *f, void *p) |
1da177e4 LT |
1071 | { |
1072 | struct sock *sk; | |
1da177e4 | 1073 | |
ee65d19e | 1074 | read_lock(&sco_sk_list.lock); |
1da177e4 | 1075 | |
b67bfe0d | 1076 | sk_for_each(sk, &sco_sk_list.head) { |
fcb73338 AE |
1077 | seq_printf(f, "%pMR %pMR %d\n", &bt_sk(sk)->src, |
1078 | &bt_sk(sk)->dst, sk->sk_state); | |
be9d1227 | 1079 | } |
1da177e4 | 1080 | |
ee65d19e | 1081 | read_unlock(&sco_sk_list.lock); |
1da177e4 | 1082 | |
aef7d97c | 1083 | return 0; |
1da177e4 LT |
1084 | } |
1085 | ||
aef7d97c MH |
1086 | static int sco_debugfs_open(struct inode *inode, struct file *file) |
1087 | { | |
1088 | return single_open(file, sco_debugfs_show, inode->i_private); | |
1089 | } | |
1090 | ||
1091 | static const struct file_operations sco_debugfs_fops = { | |
1092 | .open = sco_debugfs_open, | |
1093 | .read = seq_read, | |
1094 | .llseek = seq_lseek, | |
1095 | .release = single_release, | |
1096 | }; | |
1097 | ||
1098 | static struct dentry *sco_debugfs; | |
1da177e4 | 1099 | |
90ddc4f0 | 1100 | static const struct proto_ops sco_sock_ops = { |
1da177e4 LT |
1101 | .family = PF_BLUETOOTH, |
1102 | .owner = THIS_MODULE, | |
1103 | .release = sco_sock_release, | |
1104 | .bind = sco_sock_bind, | |
1105 | .connect = sco_sock_connect, | |
1106 | .listen = sco_sock_listen, | |
1107 | .accept = sco_sock_accept, | |
1108 | .getname = sco_sock_getname, | |
1109 | .sendmsg = sco_sock_sendmsg, | |
20714bfe | 1110 | .recvmsg = sco_sock_recvmsg, |
1da177e4 | 1111 | .poll = bt_sock_poll, |
3241ad82 | 1112 | .ioctl = bt_sock_ioctl, |
1da177e4 LT |
1113 | .mmap = sock_no_mmap, |
1114 | .socketpair = sock_no_socketpair, | |
fd0b3ff7 | 1115 | .shutdown = sco_sock_shutdown, |
1da177e4 LT |
1116 | .setsockopt = sco_sock_setsockopt, |
1117 | .getsockopt = sco_sock_getsockopt | |
1118 | }; | |
1119 | ||
ec1b4cf7 | 1120 | static const struct net_proto_family sco_sock_family_ops = { |
1da177e4 LT |
1121 | .family = PF_BLUETOOTH, |
1122 | .owner = THIS_MODULE, | |
1123 | .create = sco_sock_create, | |
1124 | }; | |
1125 | ||
64274518 | 1126 | int __init sco_init(void) |
1da177e4 LT |
1127 | { |
1128 | int err; | |
1129 | ||
1130 | err = proto_register(&sco_proto, 0); | |
1131 | if (err < 0) | |
1132 | return err; | |
1133 | ||
1134 | err = bt_sock_register(BTPROTO_SCO, &sco_sock_family_ops); | |
1135 | if (err < 0) { | |
1136 | BT_ERR("SCO socket registration failed"); | |
1137 | goto error; | |
1138 | } | |
1139 | ||
b0316615 | 1140 | err = bt_procfs_init(&init_net, "sco", &sco_sk_list, NULL); |
de9b9212 MY |
1141 | if (err < 0) { |
1142 | BT_ERR("Failed to create SCO proc file"); | |
1143 | bt_sock_unregister(BTPROTO_SCO); | |
1144 | goto error; | |
1145 | } | |
1146 | ||
aef7d97c | 1147 | if (bt_debugfs) { |
be7c2b99 GP |
1148 | sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs, |
1149 | NULL, &sco_debugfs_fops); | |
aef7d97c MH |
1150 | if (!sco_debugfs) |
1151 | BT_ERR("Failed to create SCO debug file"); | |
1152 | } | |
1da177e4 | 1153 | |
1da177e4 LT |
1154 | BT_INFO("SCO socket layer initialized"); |
1155 | ||
1156 | return 0; | |
1157 | ||
1158 | error: | |
1159 | proto_unregister(&sco_proto); | |
1160 | return err; | |
1161 | } | |
1162 | ||
64274518 | 1163 | void __exit sco_exit(void) |
1da177e4 | 1164 | { |
de9b9212 MY |
1165 | bt_procfs_cleanup(&init_net, "sco"); |
1166 | ||
aef7d97c | 1167 | debugfs_remove(sco_debugfs); |
1da177e4 | 1168 | |
5e9d7f86 | 1169 | bt_sock_unregister(BTPROTO_SCO); |
1da177e4 | 1170 | |
1da177e4 LT |
1171 | proto_unregister(&sco_proto); |
1172 | } | |
1173 | ||
7cb127d5 MH |
1174 | module_param(disable_esco, bool, 0644); |
1175 | MODULE_PARM_DESC(disable_esco, "Disable eSCO connection creation"); |