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Commit | Line | Data |
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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; | |
161 | struct sco_conn *conn; | |
162 | struct hci_conn *hcon; | |
163 | struct hci_dev *hdev; | |
b6a0dc82 | 164 | int err, type; |
1da177e4 | 165 | |
6ed93dc6 | 166 | BT_DBG("%pMR -> %pMR", src, dst); |
1da177e4 | 167 | |
735cbc47 AE |
168 | hdev = hci_get_route(dst, src); |
169 | if (!hdev) | |
1da177e4 LT |
170 | return -EHOSTUNREACH; |
171 | ||
09fd0de5 | 172 | hci_dev_lock(hdev); |
1da177e4 | 173 | |
7cb127d5 MH |
174 | if (lmp_esco_capable(hdev) && !disable_esco) |
175 | type = ESCO_LINK; | |
176 | else | |
177 | type = SCO_LINK; | |
b6a0dc82 | 178 | |
79dc0087 FD |
179 | if (sco_pi(sk)->setting == BT_VOICE_TRANSPARENT && |
180 | (!lmp_transp_capable(hdev) || !lmp_esco_capable(hdev))) { | |
181 | err = -EOPNOTSUPP; | |
182 | goto done; | |
183 | } | |
184 | ||
10c62ddc | 185 | hcon = hci_connect_sco(hdev, type, dst, sco_pi(sk)->setting); |
30e76272 VT |
186 | if (IS_ERR(hcon)) { |
187 | err = PTR_ERR(hcon); | |
1da177e4 | 188 | goto done; |
30e76272 | 189 | } |
1da177e4 | 190 | |
519e42b3 | 191 | conn = sco_conn_add(hcon); |
1da177e4 | 192 | if (!conn) { |
76a68ba0 | 193 | hci_conn_drop(hcon); |
30e76272 | 194 | err = -ENOMEM; |
1da177e4 LT |
195 | goto done; |
196 | } | |
197 | ||
198 | /* Update source addr of the socket */ | |
199 | bacpy(src, conn->src); | |
200 | ||
201 | err = sco_chan_add(conn, sk, NULL); | |
202 | if (err) | |
203 | goto done; | |
204 | ||
205 | if (hcon->state == BT_CONNECTED) { | |
206 | sco_sock_clear_timer(sk); | |
207 | sk->sk_state = BT_CONNECTED; | |
208 | } else { | |
209 | sk->sk_state = BT_CONNECT; | |
210 | sco_sock_set_timer(sk, sk->sk_sndtimeo); | |
211 | } | |
b6a0dc82 | 212 | |
1da177e4 | 213 | done: |
09fd0de5 | 214 | hci_dev_unlock(hdev); |
1da177e4 LT |
215 | hci_dev_put(hdev); |
216 | return err; | |
217 | } | |
218 | ||
6039aa73 | 219 | static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len) |
1da177e4 LT |
220 | { |
221 | struct sco_conn *conn = sco_pi(sk)->conn; | |
222 | struct sk_buff *skb; | |
088ce088 | 223 | int err; |
1da177e4 LT |
224 | |
225 | /* Check outgoing MTU */ | |
226 | if (len > conn->mtu) | |
227 | return -EINVAL; | |
228 | ||
229 | BT_DBG("sk %p len %d", sk, len); | |
230 | ||
088ce088 | 231 | skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); |
b9dbdbc1 | 232 | if (!skb) |
1da177e4 LT |
233 | return err; |
234 | ||
088ce088 | 235 | if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { |
b9dbdbc1 GP |
236 | kfree_skb(skb); |
237 | return -EFAULT; | |
1da177e4 LT |
238 | } |
239 | ||
0d861d8b | 240 | hci_send_sco(conn->hcon, skb); |
1da177e4 | 241 | |
088ce088 | 242 | return len; |
1da177e4 LT |
243 | } |
244 | ||
6039aa73 | 245 | static void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb) |
1da177e4 LT |
246 | { |
247 | struct sock *sk = sco_chan_get(conn); | |
248 | ||
249 | if (!sk) | |
250 | goto drop; | |
251 | ||
252 | BT_DBG("sk %p len %d", sk, skb->len); | |
253 | ||
254 | if (sk->sk_state != BT_CONNECTED) | |
255 | goto drop; | |
256 | ||
257 | if (!sock_queue_rcv_skb(sk, skb)) | |
258 | return; | |
259 | ||
260 | drop: | |
261 | kfree_skb(skb); | |
1da177e4 LT |
262 | } |
263 | ||
264 | /* -------- Socket interface ---------- */ | |
fb334059 | 265 | static struct sock *__sco_get_sock_listen_by_addr(bdaddr_t *ba) |
1da177e4 | 266 | { |
fb334059 MH |
267 | struct sock *sk; |
268 | ||
b67bfe0d | 269 | sk_for_each(sk, &sco_sk_list.head) { |
fb334059 MH |
270 | if (sk->sk_state != BT_LISTEN) |
271 | continue; | |
1da177e4 | 272 | |
1da177e4 | 273 | if (!bacmp(&bt_sk(sk)->src, ba)) |
fb334059 MH |
274 | return sk; |
275 | } | |
276 | ||
277 | return NULL; | |
1da177e4 LT |
278 | } |
279 | ||
280 | /* Find socket listening on source bdaddr. | |
281 | * Returns closest match. | |
282 | */ | |
283 | static struct sock *sco_get_sock_listen(bdaddr_t *src) | |
284 | { | |
285 | struct sock *sk = NULL, *sk1 = NULL; | |
1da177e4 LT |
286 | |
287 | read_lock(&sco_sk_list.lock); | |
288 | ||
b67bfe0d | 289 | sk_for_each(sk, &sco_sk_list.head) { |
1da177e4 LT |
290 | if (sk->sk_state != BT_LISTEN) |
291 | continue; | |
292 | ||
293 | /* Exact match. */ | |
294 | if (!bacmp(&bt_sk(sk)->src, src)) | |
295 | break; | |
296 | ||
297 | /* Closest match */ | |
298 | if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) | |
299 | sk1 = sk; | |
300 | } | |
301 | ||
302 | read_unlock(&sco_sk_list.lock); | |
303 | ||
b67bfe0d | 304 | return sk ? sk : sk1; |
1da177e4 LT |
305 | } |
306 | ||
307 | static void sco_sock_destruct(struct sock *sk) | |
308 | { | |
309 | BT_DBG("sk %p", sk); | |
310 | ||
311 | skb_queue_purge(&sk->sk_receive_queue); | |
312 | skb_queue_purge(&sk->sk_write_queue); | |
313 | } | |
314 | ||
315 | static void sco_sock_cleanup_listen(struct sock *parent) | |
316 | { | |
317 | struct sock *sk; | |
318 | ||
319 | BT_DBG("parent %p", parent); | |
320 | ||
321 | /* Close not yet accepted channels */ | |
322 | while ((sk = bt_accept_dequeue(parent, NULL))) { | |
323 | sco_sock_close(sk); | |
324 | sco_sock_kill(sk); | |
325 | } | |
326 | ||
327 | parent->sk_state = BT_CLOSED; | |
328 | sock_set_flag(parent, SOCK_ZAPPED); | |
329 | } | |
330 | ||
331 | /* Kill socket (only if zapped and orphan) | |
332 | * Must be called on unlocked socket. | |
333 | */ | |
334 | static void sco_sock_kill(struct sock *sk) | |
335 | { | |
336 | if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket) | |
337 | return; | |
338 | ||
339 | BT_DBG("sk %p state %d", sk, sk->sk_state); | |
340 | ||
341 | /* Kill poor orphan */ | |
342 | bt_sock_unlink(&sco_sk_list, sk); | |
343 | sock_set_flag(sk, SOCK_DEAD); | |
344 | sock_put(sk); | |
345 | } | |
346 | ||
fd0b3ff7 | 347 | static void __sco_sock_close(struct sock *sk) |
1da177e4 | 348 | { |
fd0b3ff7 | 349 | BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket); |
1da177e4 LT |
350 | |
351 | switch (sk->sk_state) { | |
352 | case BT_LISTEN: | |
353 | sco_sock_cleanup_listen(sk); | |
354 | break; | |
355 | ||
356 | case BT_CONNECTED: | |
357 | case BT_CONFIG: | |
b7e98b51 | 358 | if (sco_pi(sk)->conn->hcon) { |
4a77708b LAD |
359 | sk->sk_state = BT_DISCONN; |
360 | sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT); | |
76a68ba0 | 361 | hci_conn_drop(sco_pi(sk)->conn->hcon); |
4a77708b LAD |
362 | sco_pi(sk)->conn->hcon = NULL; |
363 | } else | |
364 | sco_chan_del(sk, ECONNRESET); | |
365 | break; | |
366 | ||
eb20ff9c | 367 | case BT_CONNECT2: |
1da177e4 LT |
368 | case BT_CONNECT: |
369 | case BT_DISCONN: | |
370 | sco_chan_del(sk, ECONNRESET); | |
371 | break; | |
372 | ||
373 | default: | |
374 | sock_set_flag(sk, SOCK_ZAPPED); | |
375 | break; | |
3ff50b79 | 376 | } |
fd0b3ff7 | 377 | } |
1da177e4 | 378 | |
fd0b3ff7 MH |
379 | /* Must be called on unlocked socket. */ |
380 | static void sco_sock_close(struct sock *sk) | |
381 | { | |
382 | sco_sock_clear_timer(sk); | |
383 | lock_sock(sk); | |
384 | __sco_sock_close(sk); | |
1da177e4 | 385 | release_sock(sk); |
1da177e4 LT |
386 | sco_sock_kill(sk); |
387 | } | |
388 | ||
389 | static void sco_sock_init(struct sock *sk, struct sock *parent) | |
390 | { | |
391 | BT_DBG("sk %p", sk); | |
392 | ||
6230c9b4 | 393 | if (parent) { |
1da177e4 | 394 | sk->sk_type = parent->sk_type; |
20714bfe | 395 | bt_sk(sk)->flags = bt_sk(parent)->flags; |
6230c9b4 PM |
396 | security_sk_clone(parent, sk); |
397 | } | |
1da177e4 LT |
398 | } |
399 | ||
400 | static struct proto sco_proto = { | |
401 | .name = "SCO", | |
402 | .owner = THIS_MODULE, | |
403 | .obj_size = sizeof(struct sco_pinfo) | |
404 | }; | |
405 | ||
1b8d7ae4 | 406 | static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio) |
1da177e4 LT |
407 | { |
408 | struct sock *sk; | |
409 | ||
6257ff21 | 410 | sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto); |
1da177e4 LT |
411 | if (!sk) |
412 | return NULL; | |
413 | ||
414 | sock_init_data(sock, sk); | |
415 | INIT_LIST_HEAD(&bt_sk(sk)->accept_q); | |
416 | ||
417 | sk->sk_destruct = sco_sock_destruct; | |
418 | sk->sk_sndtimeo = SCO_CONN_TIMEOUT; | |
419 | ||
420 | sock_reset_flag(sk, SOCK_ZAPPED); | |
421 | ||
422 | sk->sk_protocol = proto; | |
423 | sk->sk_state = BT_OPEN; | |
424 | ||
ad10b1a4 FD |
425 | sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT; |
426 | ||
b24b8a24 | 427 | setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk); |
1da177e4 LT |
428 | |
429 | bt_sock_link(&sco_sk_list, sk); | |
430 | return sk; | |
431 | } | |
432 | ||
3f378b68 EP |
433 | static int sco_sock_create(struct net *net, struct socket *sock, int protocol, |
434 | int kern) | |
1da177e4 LT |
435 | { |
436 | struct sock *sk; | |
437 | ||
438 | BT_DBG("sock %p", sock); | |
439 | ||
440 | sock->state = SS_UNCONNECTED; | |
441 | ||
442 | if (sock->type != SOCK_SEQPACKET) | |
443 | return -ESOCKTNOSUPPORT; | |
444 | ||
445 | sock->ops = &sco_sock_ops; | |
446 | ||
1b8d7ae4 | 447 | sk = sco_sock_alloc(net, sock, protocol, GFP_ATOMIC); |
74da626a | 448 | if (!sk) |
1da177e4 LT |
449 | return -ENOMEM; |
450 | ||
451 | sco_sock_init(sk, NULL); | |
452 | return 0; | |
453 | } | |
454 | ||
455 | static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) | |
456 | { | |
457 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
458 | struct sock *sk = sock->sk; | |
1da177e4 LT |
459 | int err = 0; |
460 | ||
6ed93dc6 | 461 | BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr); |
1da177e4 LT |
462 | |
463 | if (!addr || addr->sa_family != AF_BLUETOOTH) | |
464 | return -EINVAL; | |
465 | ||
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 | ||
8ed21f7e MH |
478 | bacpy(&bt_sk(sk)->src, &sa->sco_bdaddr); |
479 | ||
480 | sk->sk_state = BT_BOUND; | |
1da177e4 LT |
481 | |
482 | done: | |
483 | release_sock(sk); | |
484 | return err; | |
485 | } | |
486 | ||
487 | static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags) | |
488 | { | |
489 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
490 | struct sock *sk = sock->sk; | |
92f185c8 | 491 | int err; |
1da177e4 LT |
492 | |
493 | BT_DBG("sk %p", sk); | |
494 | ||
6503d961 CG |
495 | if (alen < sizeof(struct sockaddr_sco) || |
496 | addr->sa_family != AF_BLUETOOTH) | |
1da177e4 LT |
497 | return -EINVAL; |
498 | ||
499 | if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) | |
500 | return -EBADFD; | |
501 | ||
502 | if (sk->sk_type != SOCK_SEQPACKET) | |
503 | return -EINVAL; | |
504 | ||
505 | lock_sock(sk); | |
506 | ||
507 | /* Set destination address and psm */ | |
508 | bacpy(&bt_sk(sk)->dst, &sa->sco_bdaddr); | |
509 | ||
735cbc47 AE |
510 | err = sco_connect(sk); |
511 | if (err) | |
1da177e4 LT |
512 | goto done; |
513 | ||
8e87d142 | 514 | err = bt_sock_wait_state(sk, BT_CONNECTED, |
be7c2b99 | 515 | sock_sndtimeo(sk, flags & O_NONBLOCK)); |
1da177e4 LT |
516 | |
517 | done: | |
518 | release_sock(sk); | |
519 | return err; | |
520 | } | |
521 | ||
522 | static int sco_sock_listen(struct socket *sock, int backlog) | |
523 | { | |
524 | struct sock *sk = sock->sk; | |
fb334059 | 525 | bdaddr_t *src = &bt_sk(sk)->src; |
1da177e4 LT |
526 | int err = 0; |
527 | ||
528 | BT_DBG("sk %p backlog %d", sk, backlog); | |
529 | ||
530 | lock_sock(sk); | |
531 | ||
7d5d775a | 532 | if (sk->sk_state != BT_BOUND) { |
1da177e4 LT |
533 | err = -EBADFD; |
534 | goto done; | |
535 | } | |
536 | ||
7d5d775a MH |
537 | if (sk->sk_type != SOCK_SEQPACKET) { |
538 | err = -EINVAL; | |
539 | goto done; | |
540 | } | |
541 | ||
fb334059 MH |
542 | write_lock(&sco_sk_list.lock); |
543 | ||
544 | if (__sco_get_sock_listen_by_addr(src)) { | |
545 | err = -EADDRINUSE; | |
546 | goto unlock; | |
547 | } | |
548 | ||
1da177e4 LT |
549 | sk->sk_max_ack_backlog = backlog; |
550 | sk->sk_ack_backlog = 0; | |
fb334059 | 551 | |
1da177e4 LT |
552 | sk->sk_state = BT_LISTEN; |
553 | ||
fb334059 MH |
554 | unlock: |
555 | write_unlock(&sco_sk_list.lock); | |
556 | ||
1da177e4 LT |
557 | done: |
558 | release_sock(sk); | |
559 | return err; | |
560 | } | |
561 | ||
562 | static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags) | |
563 | { | |
564 | DECLARE_WAITQUEUE(wait, current); | |
565 | struct sock *sk = sock->sk, *ch; | |
566 | long timeo; | |
567 | int err = 0; | |
568 | ||
569 | lock_sock(sk); | |
570 | ||
1da177e4 LT |
571 | timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK); |
572 | ||
573 | BT_DBG("sk %p timeo %ld", sk, timeo); | |
574 | ||
575 | /* Wait for an incoming connection. (wake-one). */ | |
aa395145 | 576 | add_wait_queue_exclusive(sk_sleep(sk), &wait); |
552b0d3c | 577 | while (1) { |
1da177e4 | 578 | set_current_state(TASK_INTERRUPTIBLE); |
552b0d3c PH |
579 | |
580 | if (sk->sk_state != BT_LISTEN) { | |
581 | err = -EBADFD; | |
1da177e4 LT |
582 | break; |
583 | } | |
584 | ||
552b0d3c PH |
585 | ch = bt_accept_dequeue(sk, newsock); |
586 | if (ch) | |
587 | break; | |
1da177e4 | 588 | |
552b0d3c PH |
589 | if (!timeo) { |
590 | err = -EAGAIN; | |
1da177e4 LT |
591 | break; |
592 | } | |
593 | ||
594 | if (signal_pending(current)) { | |
595 | err = sock_intr_errno(timeo); | |
596 | break; | |
597 | } | |
552b0d3c PH |
598 | |
599 | release_sock(sk); | |
600 | timeo = schedule_timeout(timeo); | |
601 | lock_sock(sk); | |
1da177e4 | 602 | } |
552b0d3c | 603 | __set_current_state(TASK_RUNNING); |
aa395145 | 604 | remove_wait_queue(sk_sleep(sk), &wait); |
1da177e4 LT |
605 | |
606 | if (err) | |
607 | goto done; | |
608 | ||
609 | newsock->state = SS_CONNECTED; | |
610 | ||
611 | BT_DBG("new socket %p", ch); | |
612 | ||
613 | done: | |
614 | release_sock(sk); | |
615 | return err; | |
616 | } | |
617 | ||
618 | static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer) | |
619 | { | |
620 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
621 | struct sock *sk = sock->sk; | |
622 | ||
623 | BT_DBG("sock %p, sk %p", sock, sk); | |
624 | ||
625 | addr->sa_family = AF_BLUETOOTH; | |
626 | *len = sizeof(struct sockaddr_sco); | |
627 | ||
628 | if (peer) | |
629 | bacpy(&sa->sco_bdaddr, &bt_sk(sk)->dst); | |
630 | else | |
631 | bacpy(&sa->sco_bdaddr, &bt_sk(sk)->src); | |
632 | ||
633 | return 0; | |
634 | } | |
635 | ||
8e87d142 | 636 | static int sco_sock_sendmsg(struct kiocb *iocb, struct socket *sock, |
1da177e4 LT |
637 | struct msghdr *msg, size_t len) |
638 | { | |
639 | struct sock *sk = sock->sk; | |
b9dbdbc1 | 640 | int err; |
1da177e4 LT |
641 | |
642 | BT_DBG("sock %p, sk %p", sock, sk); | |
643 | ||
c1cbe4b7 BL |
644 | err = sock_error(sk); |
645 | if (err) | |
646 | return err; | |
1da177e4 LT |
647 | |
648 | if (msg->msg_flags & MSG_OOB) | |
649 | return -EOPNOTSUPP; | |
650 | ||
651 | lock_sock(sk); | |
652 | ||
653 | if (sk->sk_state == BT_CONNECTED) | |
654 | err = sco_send_frame(sk, msg, len); | |
655 | else | |
656 | err = -ENOTCONN; | |
657 | ||
658 | release_sock(sk); | |
659 | return err; | |
660 | } | |
661 | ||
2f69a82a | 662 | static void sco_conn_defer_accept(struct hci_conn *conn, u16 setting) |
fa5513be FD |
663 | { |
664 | struct hci_dev *hdev = conn->hdev; | |
665 | ||
666 | BT_DBG("conn %p", conn); | |
667 | ||
668 | conn->state = BT_CONFIG; | |
669 | ||
670 | if (!lmp_esco_capable(hdev)) { | |
671 | struct hci_cp_accept_conn_req cp; | |
672 | ||
673 | bacpy(&cp.bdaddr, &conn->dst); | |
33f24048 | 674 | cp.role = 0x00; /* Ignored */ |
fa5513be FD |
675 | |
676 | hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp); | |
677 | } else { | |
678 | struct hci_cp_accept_sync_conn_req cp; | |
679 | ||
680 | bacpy(&cp.bdaddr, &conn->dst); | |
681 | cp.pkt_type = cpu_to_le16(conn->pkt_type); | |
682 | ||
683 | cp.tx_bandwidth = __constant_cpu_to_le32(0x00001f40); | |
684 | cp.rx_bandwidth = __constant_cpu_to_le32(0x00001f40); | |
2f69a82a FD |
685 | cp.content_format = cpu_to_le16(setting); |
686 | ||
687 | switch (setting & SCO_AIRMODE_MASK) { | |
688 | case SCO_AIRMODE_TRANSP: | |
689 | if (conn->pkt_type & ESCO_2EV3) | |
690 | cp.max_latency = __constant_cpu_to_le16(0x0008); | |
691 | else | |
692 | cp.max_latency = __constant_cpu_to_le16(0x000D); | |
693 | cp.retrans_effort = 0x02; | |
694 | break; | |
695 | case SCO_AIRMODE_CVSD: | |
696 | cp.max_latency = __constant_cpu_to_le16(0xffff); | |
697 | cp.retrans_effort = 0xff; | |
698 | break; | |
699 | } | |
fa5513be FD |
700 | |
701 | hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, | |
702 | sizeof(cp), &cp); | |
703 | } | |
704 | } | |
705 | ||
20714bfe FD |
706 | static int sco_sock_recvmsg(struct kiocb *iocb, struct socket *sock, |
707 | struct msghdr *msg, size_t len, int flags) | |
708 | { | |
709 | struct sock *sk = sock->sk; | |
710 | struct sco_pinfo *pi = sco_pi(sk); | |
711 | ||
712 | lock_sock(sk); | |
713 | ||
714 | if (sk->sk_state == BT_CONNECT2 && | |
715 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { | |
2f69a82a | 716 | sco_conn_defer_accept(pi->conn->hcon, pi->setting); |
20714bfe | 717 | sk->sk_state = BT_CONFIG; |
c8c49917 | 718 | msg->msg_namelen = 0; |
20714bfe FD |
719 | |
720 | release_sock(sk); | |
721 | return 0; | |
722 | } | |
723 | ||
724 | release_sock(sk); | |
725 | ||
726 | return bt_sock_recvmsg(iocb, sock, msg, len, flags); | |
727 | } | |
728 | ||
b7058842 | 729 | static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) |
1da177e4 LT |
730 | { |
731 | struct sock *sk = sock->sk; | |
ad10b1a4 FD |
732 | int len, err = 0; |
733 | struct bt_voice voice; | |
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 | ||
ad10b1a4 FD |
759 | case BT_VOICE: |
760 | if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND && | |
761 | sk->sk_state != BT_CONNECT2) { | |
762 | err = -EINVAL; | |
763 | break; | |
764 | } | |
765 | ||
766 | voice.setting = sco_pi(sk)->setting; | |
767 | ||
768 | len = min_t(unsigned int, sizeof(voice), optlen); | |
769 | if (copy_from_user((char *) &voice, optval, len)) { | |
770 | err = -EFAULT; | |
771 | break; | |
772 | } | |
773 | ||
774 | /* Explicitly check for these values */ | |
775 | if (voice.setting != BT_VOICE_TRANSPARENT && | |
776 | voice.setting != BT_VOICE_CVSD_16BIT) { | |
777 | err = -EINVAL; | |
778 | break; | |
779 | } | |
780 | ||
781 | sco_pi(sk)->setting = voice.setting; | |
782 | break; | |
783 | ||
1da177e4 LT |
784 | default: |
785 | err = -ENOPROTOOPT; | |
786 | break; | |
787 | } | |
788 | ||
789 | release_sock(sk); | |
790 | return err; | |
791 | } | |
792 | ||
d58daf42 | 793 | static int sco_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen) |
1da177e4 LT |
794 | { |
795 | struct sock *sk = sock->sk; | |
796 | struct sco_options opts; | |
797 | struct sco_conninfo cinfo; | |
8e87d142 | 798 | int len, err = 0; |
1da177e4 LT |
799 | |
800 | BT_DBG("sk %p", sk); | |
801 | ||
802 | if (get_user(len, optlen)) | |
803 | return -EFAULT; | |
804 | ||
805 | lock_sock(sk); | |
806 | ||
807 | switch (optname) { | |
808 | case SCO_OPTIONS: | |
9d225d22 JH |
809 | if (sk->sk_state != BT_CONNECTED && |
810 | !(sk->sk_state == BT_CONNECT2 && | |
811 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) { | |
1da177e4 LT |
812 | err = -ENOTCONN; |
813 | break; | |
814 | } | |
815 | ||
816 | opts.mtu = sco_pi(sk)->conn->mtu; | |
817 | ||
818 | BT_DBG("mtu %d", opts.mtu); | |
819 | ||
820 | len = min_t(unsigned int, len, sizeof(opts)); | |
821 | if (copy_to_user(optval, (char *)&opts, len)) | |
822 | err = -EFAULT; | |
823 | ||
824 | break; | |
825 | ||
826 | case SCO_CONNINFO: | |
9d225d22 JH |
827 | if (sk->sk_state != BT_CONNECTED && |
828 | !(sk->sk_state == BT_CONNECT2 && | |
829 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) { | |
1da177e4 LT |
830 | err = -ENOTCONN; |
831 | break; | |
832 | } | |
833 | ||
c4c896e1 | 834 | memset(&cinfo, 0, sizeof(cinfo)); |
1da177e4 LT |
835 | cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle; |
836 | memcpy(cinfo.dev_class, sco_pi(sk)->conn->hcon->dev_class, 3); | |
837 | ||
838 | len = min_t(unsigned int, len, sizeof(cinfo)); | |
839 | if (copy_to_user(optval, (char *)&cinfo, len)) | |
840 | err = -EFAULT; | |
841 | ||
842 | break; | |
843 | ||
844 | default: | |
845 | err = -ENOPROTOOPT; | |
846 | break; | |
847 | } | |
848 | ||
849 | release_sock(sk); | |
850 | return err; | |
851 | } | |
852 | ||
d58daf42 MH |
853 | static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen) |
854 | { | |
855 | struct sock *sk = sock->sk; | |
856 | int len, err = 0; | |
ad10b1a4 | 857 | struct bt_voice voice; |
d58daf42 MH |
858 | |
859 | BT_DBG("sk %p", sk); | |
860 | ||
861 | if (level == SOL_SCO) | |
862 | return sco_sock_getsockopt_old(sock, optname, optval, optlen); | |
863 | ||
864 | if (get_user(len, optlen)) | |
865 | return -EFAULT; | |
866 | ||
867 | lock_sock(sk); | |
868 | ||
869 | switch (optname) { | |
b96e9c67 FD |
870 | |
871 | case BT_DEFER_SETUP: | |
872 | if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) { | |
873 | err = -EINVAL; | |
874 | break; | |
875 | } | |
876 | ||
877 | if (put_user(test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags), | |
878 | (u32 __user *) optval)) | |
879 | err = -EFAULT; | |
880 | ||
881 | break; | |
882 | ||
ad10b1a4 FD |
883 | case BT_VOICE: |
884 | voice.setting = sco_pi(sk)->setting; | |
885 | ||
886 | len = min_t(unsigned int, len, sizeof(voice)); | |
887 | if (copy_to_user(optval, (char *)&voice, len)) | |
888 | err = -EFAULT; | |
889 | ||
890 | break; | |
891 | ||
d58daf42 MH |
892 | default: |
893 | err = -ENOPROTOOPT; | |
894 | break; | |
895 | } | |
896 | ||
897 | release_sock(sk); | |
898 | return err; | |
899 | } | |
900 | ||
fd0b3ff7 MH |
901 | static int sco_sock_shutdown(struct socket *sock, int how) |
902 | { | |
903 | struct sock *sk = sock->sk; | |
904 | int err = 0; | |
905 | ||
906 | BT_DBG("sock %p, sk %p", sock, sk); | |
907 | ||
908 | if (!sk) | |
909 | return 0; | |
910 | ||
911 | lock_sock(sk); | |
912 | if (!sk->sk_shutdown) { | |
913 | sk->sk_shutdown = SHUTDOWN_MASK; | |
914 | sco_sock_clear_timer(sk); | |
915 | __sco_sock_close(sk); | |
916 | ||
917 | if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) | |
918 | err = bt_sock_wait_state(sk, BT_CLOSED, | |
be7c2b99 | 919 | sk->sk_lingertime); |
fd0b3ff7 MH |
920 | } |
921 | release_sock(sk); | |
922 | return err; | |
923 | } | |
924 | ||
1da177e4 LT |
925 | static int sco_sock_release(struct socket *sock) |
926 | { | |
927 | struct sock *sk = sock->sk; | |
928 | int err = 0; | |
929 | ||
930 | BT_DBG("sock %p, sk %p", sock, sk); | |
931 | ||
932 | if (!sk) | |
933 | return 0; | |
934 | ||
935 | sco_sock_close(sk); | |
936 | ||
937 | if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) { | |
938 | lock_sock(sk); | |
939 | err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); | |
940 | release_sock(sk); | |
941 | } | |
942 | ||
943 | sock_orphan(sk); | |
944 | sco_sock_kill(sk); | |
945 | return err; | |
946 | } | |
947 | ||
948 | static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent) | |
949 | { | |
950 | BT_DBG("conn %p", conn); | |
951 | ||
952 | sco_pi(sk)->conn = conn; | |
953 | conn->sk = sk; | |
954 | ||
955 | if (parent) | |
956 | bt_accept_enqueue(parent, sk); | |
957 | } | |
958 | ||
8e87d142 | 959 | /* Delete channel. |
1da177e4 LT |
960 | * Must be called on the locked socket. */ |
961 | static void sco_chan_del(struct sock *sk, int err) | |
962 | { | |
963 | struct sco_conn *conn; | |
964 | ||
965 | conn = sco_pi(sk)->conn; | |
966 | ||
967 | BT_DBG("sk %p, conn %p, err %d", sk, conn, err); | |
968 | ||
0b27a4b9 GP |
969 | if (conn) { |
970 | sco_conn_lock(conn); | |
971 | conn->sk = NULL; | |
972 | sco_pi(sk)->conn = NULL; | |
973 | sco_conn_unlock(conn); | |
974 | ||
975 | if (conn->hcon) | |
76a68ba0 | 976 | hci_conn_drop(conn->hcon); |
0b27a4b9 GP |
977 | } |
978 | ||
1da177e4 LT |
979 | sk->sk_state = BT_CLOSED; |
980 | sk->sk_err = err; | |
981 | sk->sk_state_change(sk); | |
982 | ||
983 | sock_set_flag(sk, SOCK_ZAPPED); | |
984 | } | |
985 | ||
986 | static void sco_conn_ready(struct sco_conn *conn) | |
987 | { | |
735cbc47 AE |
988 | struct sock *parent; |
989 | struct sock *sk = conn->sk; | |
1da177e4 LT |
990 | |
991 | BT_DBG("conn %p", conn); | |
992 | ||
735cbc47 | 993 | if (sk) { |
1da177e4 LT |
994 | sco_sock_clear_timer(sk); |
995 | bh_lock_sock(sk); | |
996 | sk->sk_state = BT_CONNECTED; | |
997 | sk->sk_state_change(sk); | |
998 | bh_unlock_sock(sk); | |
999 | } else { | |
40528088 AG |
1000 | sco_conn_lock(conn); |
1001 | ||
1da177e4 | 1002 | parent = sco_get_sock_listen(conn->src); |
40528088 AG |
1003 | if (!parent) { |
1004 | sco_conn_unlock(conn); | |
1005 | return; | |
1006 | } | |
1da177e4 LT |
1007 | |
1008 | bh_lock_sock(parent); | |
1009 | ||
b9dbdbc1 | 1010 | sk = sco_sock_alloc(sock_net(parent), NULL, |
be7c2b99 | 1011 | BTPROTO_SCO, GFP_ATOMIC); |
1da177e4 LT |
1012 | if (!sk) { |
1013 | bh_unlock_sock(parent); | |
40528088 AG |
1014 | sco_conn_unlock(conn); |
1015 | return; | |
1da177e4 LT |
1016 | } |
1017 | ||
1018 | sco_sock_init(sk, parent); | |
1019 | ||
1020 | bacpy(&bt_sk(sk)->src, conn->src); | |
1021 | bacpy(&bt_sk(sk)->dst, conn->dst); | |
1022 | ||
1023 | hci_conn_hold(conn->hcon); | |
1024 | __sco_chan_add(conn, sk, parent); | |
1025 | ||
20714bfe FD |
1026 | if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags)) |
1027 | sk->sk_state = BT_CONNECT2; | |
1028 | else | |
1029 | sk->sk_state = BT_CONNECTED; | |
1da177e4 LT |
1030 | |
1031 | /* Wake up parent */ | |
1032 | parent->sk_data_ready(parent, 1); | |
1033 | ||
1034 | bh_unlock_sock(parent); | |
1da177e4 | 1035 | |
40528088 AG |
1036 | sco_conn_unlock(conn); |
1037 | } | |
1da177e4 LT |
1038 | } |
1039 | ||
1040 | /* ----- SCO interface with lower layer (HCI) ----- */ | |
20714bfe | 1041 | int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags) |
1da177e4 | 1042 | { |
fc5fef61 | 1043 | struct sock *sk; |
71aeeaa1 MH |
1044 | int lm = 0; |
1045 | ||
6ed93dc6 | 1046 | BT_DBG("hdev %s, bdaddr %pMR", hdev->name, bdaddr); |
1da177e4 | 1047 | |
71aeeaa1 MH |
1048 | /* Find listening sockets */ |
1049 | read_lock(&sco_sk_list.lock); | |
b67bfe0d | 1050 | sk_for_each(sk, &sco_sk_list.head) { |
71aeeaa1 MH |
1051 | if (sk->sk_state != BT_LISTEN) |
1052 | continue; | |
1053 | ||
1054 | if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) || | |
be7c2b99 | 1055 | !bacmp(&bt_sk(sk)->src, BDADDR_ANY)) { |
71aeeaa1 | 1056 | lm |= HCI_LM_ACCEPT; |
20714bfe FD |
1057 | |
1058 | if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) | |
1059 | *flags |= HCI_PROTO_DEFER; | |
71aeeaa1 MH |
1060 | break; |
1061 | } | |
1062 | } | |
1063 | read_unlock(&sco_sk_list.lock); | |
1064 | ||
1065 | return lm; | |
1da177e4 LT |
1066 | } |
1067 | ||
9e664631 | 1068 | void sco_connect_cfm(struct hci_conn *hcon, __u8 status) |
1da177e4 | 1069 | { |
6ed93dc6 | 1070 | BT_DBG("hcon %p bdaddr %pMR status %d", hcon, &hcon->dst, status); |
1da177e4 LT |
1071 | if (!status) { |
1072 | struct sco_conn *conn; | |
1073 | ||
519e42b3 | 1074 | conn = sco_conn_add(hcon); |
1da177e4 LT |
1075 | if (conn) |
1076 | sco_conn_ready(conn); | |
8e87d142 | 1077 | } else |
e175072f | 1078 | sco_conn_del(hcon, bt_to_errno(status)); |
1da177e4 LT |
1079 | } |
1080 | ||
9e664631 | 1081 | void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason) |
1da177e4 LT |
1082 | { |
1083 | BT_DBG("hcon %p reason %d", hcon, reason); | |
1084 | ||
e175072f | 1085 | sco_conn_del(hcon, bt_to_errno(reason)); |
1da177e4 LT |
1086 | } |
1087 | ||
686ebf28 | 1088 | int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) |
1da177e4 LT |
1089 | { |
1090 | struct sco_conn *conn = hcon->sco_data; | |
1091 | ||
1092 | if (!conn) | |
1093 | goto drop; | |
1094 | ||
1095 | BT_DBG("conn %p len %d", conn, skb->len); | |
1096 | ||
1097 | if (skb->len) { | |
1098 | sco_recv_frame(conn, skb); | |
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | drop: | |
8e87d142 | 1103 | kfree_skb(skb); |
1da177e4 LT |
1104 | return 0; |
1105 | } | |
1106 | ||
aef7d97c | 1107 | static int sco_debugfs_show(struct seq_file *f, void *p) |
1da177e4 LT |
1108 | { |
1109 | struct sock *sk; | |
1da177e4 | 1110 | |
ee65d19e | 1111 | read_lock(&sco_sk_list.lock); |
1da177e4 | 1112 | |
b67bfe0d | 1113 | sk_for_each(sk, &sco_sk_list.head) { |
fcb73338 AE |
1114 | seq_printf(f, "%pMR %pMR %d\n", &bt_sk(sk)->src, |
1115 | &bt_sk(sk)->dst, sk->sk_state); | |
be9d1227 | 1116 | } |
1da177e4 | 1117 | |
ee65d19e | 1118 | read_unlock(&sco_sk_list.lock); |
1da177e4 | 1119 | |
aef7d97c | 1120 | return 0; |
1da177e4 LT |
1121 | } |
1122 | ||
aef7d97c MH |
1123 | static int sco_debugfs_open(struct inode *inode, struct file *file) |
1124 | { | |
1125 | return single_open(file, sco_debugfs_show, inode->i_private); | |
1126 | } | |
1127 | ||
1128 | static const struct file_operations sco_debugfs_fops = { | |
1129 | .open = sco_debugfs_open, | |
1130 | .read = seq_read, | |
1131 | .llseek = seq_lseek, | |
1132 | .release = single_release, | |
1133 | }; | |
1134 | ||
1135 | static struct dentry *sco_debugfs; | |
1da177e4 | 1136 | |
90ddc4f0 | 1137 | static const struct proto_ops sco_sock_ops = { |
1da177e4 LT |
1138 | .family = PF_BLUETOOTH, |
1139 | .owner = THIS_MODULE, | |
1140 | .release = sco_sock_release, | |
1141 | .bind = sco_sock_bind, | |
1142 | .connect = sco_sock_connect, | |
1143 | .listen = sco_sock_listen, | |
1144 | .accept = sco_sock_accept, | |
1145 | .getname = sco_sock_getname, | |
1146 | .sendmsg = sco_sock_sendmsg, | |
20714bfe | 1147 | .recvmsg = sco_sock_recvmsg, |
1da177e4 | 1148 | .poll = bt_sock_poll, |
3241ad82 | 1149 | .ioctl = bt_sock_ioctl, |
1da177e4 LT |
1150 | .mmap = sock_no_mmap, |
1151 | .socketpair = sock_no_socketpair, | |
fd0b3ff7 | 1152 | .shutdown = sco_sock_shutdown, |
1da177e4 LT |
1153 | .setsockopt = sco_sock_setsockopt, |
1154 | .getsockopt = sco_sock_getsockopt | |
1155 | }; | |
1156 | ||
ec1b4cf7 | 1157 | static const struct net_proto_family sco_sock_family_ops = { |
1da177e4 LT |
1158 | .family = PF_BLUETOOTH, |
1159 | .owner = THIS_MODULE, | |
1160 | .create = sco_sock_create, | |
1161 | }; | |
1162 | ||
64274518 | 1163 | int __init sco_init(void) |
1da177e4 LT |
1164 | { |
1165 | int err; | |
1166 | ||
1167 | err = proto_register(&sco_proto, 0); | |
1168 | if (err < 0) | |
1169 | return err; | |
1170 | ||
1171 | err = bt_sock_register(BTPROTO_SCO, &sco_sock_family_ops); | |
1172 | if (err < 0) { | |
1173 | BT_ERR("SCO socket registration failed"); | |
1174 | goto error; | |
1175 | } | |
1176 | ||
b0316615 | 1177 | err = bt_procfs_init(&init_net, "sco", &sco_sk_list, NULL); |
de9b9212 MY |
1178 | if (err < 0) { |
1179 | BT_ERR("Failed to create SCO proc file"); | |
1180 | bt_sock_unregister(BTPROTO_SCO); | |
1181 | goto error; | |
1182 | } | |
1183 | ||
aef7d97c | 1184 | if (bt_debugfs) { |
be7c2b99 GP |
1185 | sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs, |
1186 | NULL, &sco_debugfs_fops); | |
aef7d97c MH |
1187 | if (!sco_debugfs) |
1188 | BT_ERR("Failed to create SCO debug file"); | |
1189 | } | |
1da177e4 | 1190 | |
1da177e4 LT |
1191 | BT_INFO("SCO socket layer initialized"); |
1192 | ||
1193 | return 0; | |
1194 | ||
1195 | error: | |
1196 | proto_unregister(&sco_proto); | |
1197 | return err; | |
1198 | } | |
1199 | ||
64274518 | 1200 | void __exit sco_exit(void) |
1da177e4 | 1201 | { |
de9b9212 MY |
1202 | bt_procfs_cleanup(&init_net, "sco"); |
1203 | ||
aef7d97c | 1204 | debugfs_remove(sco_debugfs); |
1da177e4 | 1205 | |
5e9d7f86 | 1206 | bt_sock_unregister(BTPROTO_SCO); |
1da177e4 | 1207 | |
1da177e4 LT |
1208 | proto_unregister(&sco_proto); |
1209 | } | |
1210 | ||
7cb127d5 MH |
1211 | module_param(disable_esco, bool, 0644); |
1212 | MODULE_PARM_DESC(disable_esco, "Disable eSCO connection creation"); |