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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 | ||
fc8f525a MH |
43 | /* ---- SCO connections ---- */ |
44 | struct sco_conn { | |
45 | struct hci_conn *hcon; | |
46 | ||
47 | spinlock_t lock; | |
48 | struct sock *sk; | |
49 | ||
50 | unsigned int mtu; | |
51 | }; | |
52 | ||
53 | #define sco_conn_lock(c) spin_lock(&c->lock); | |
54 | #define sco_conn_unlock(c) spin_unlock(&c->lock); | |
55 | ||
1da177e4 LT |
56 | static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent); |
57 | static void sco_chan_del(struct sock *sk, int err); | |
58 | ||
1da177e4 LT |
59 | static void sco_sock_close(struct sock *sk); |
60 | static void sco_sock_kill(struct sock *sk); | |
61 | ||
2a0dccb3 MH |
62 | /* ----- SCO socket info ----- */ |
63 | #define sco_pi(sk) ((struct sco_pinfo *) sk) | |
64 | ||
65 | struct sco_pinfo { | |
66 | struct bt_sock bt; | |
67 | bdaddr_t src; | |
68 | bdaddr_t dst; | |
69 | __u32 flags; | |
70 | __u16 setting; | |
71 | struct sco_conn *conn; | |
72 | }; | |
73 | ||
1da177e4 LT |
74 | /* ---- SCO timers ---- */ |
75 | static void sco_sock_timeout(unsigned long arg) | |
76 | { | |
77 | struct sock *sk = (struct sock *) arg; | |
78 | ||
79 | BT_DBG("sock %p state %d", sk, sk->sk_state); | |
80 | ||
81 | bh_lock_sock(sk); | |
82 | sk->sk_err = ETIMEDOUT; | |
83 | sk->sk_state_change(sk); | |
84 | bh_unlock_sock(sk); | |
85 | ||
86 | sco_sock_kill(sk); | |
87 | sock_put(sk); | |
88 | } | |
89 | ||
90 | static void sco_sock_set_timer(struct sock *sk, long timeout) | |
91 | { | |
92 | BT_DBG("sock %p state %d timeout %ld", sk, sk->sk_state, timeout); | |
93 | sk_reset_timer(sk, &sk->sk_timer, jiffies + timeout); | |
94 | } | |
95 | ||
96 | static void sco_sock_clear_timer(struct sock *sk) | |
97 | { | |
98 | BT_DBG("sock %p state %d", sk, sk->sk_state); | |
99 | sk_stop_timer(sk, &sk->sk_timer); | |
100 | } | |
101 | ||
1da177e4 | 102 | /* ---- SCO connections ---- */ |
519e42b3 | 103 | static struct sco_conn *sco_conn_add(struct hci_conn *hcon) |
1da177e4 LT |
104 | { |
105 | struct hci_dev *hdev = hcon->hdev; | |
25ea6db0 | 106 | struct sco_conn *conn = hcon->sco_data; |
1da177e4 | 107 | |
519e42b3 | 108 | if (conn) |
1da177e4 LT |
109 | return conn; |
110 | ||
c10cc5a9 | 111 | conn = kzalloc(sizeof(struct sco_conn), GFP_KERNEL); |
25ea6db0 | 112 | if (!conn) |
1da177e4 | 113 | return NULL; |
1da177e4 LT |
114 | |
115 | spin_lock_init(&conn->lock); | |
116 | ||
117 | hcon->sco_data = conn; | |
118 | conn->hcon = hcon; | |
119 | ||
1da177e4 LT |
120 | if (hdev->sco_mtu > 0) |
121 | conn->mtu = hdev->sco_mtu; | |
122 | else | |
123 | conn->mtu = 60; | |
124 | ||
125 | BT_DBG("hcon %p conn %p", hcon, conn); | |
25ea6db0 | 126 | |
1da177e4 LT |
127 | return conn; |
128 | } | |
129 | ||
6039aa73 | 130 | static struct sock *sco_chan_get(struct sco_conn *conn) |
1da177e4 LT |
131 | { |
132 | struct sock *sk = NULL; | |
133 | sco_conn_lock(conn); | |
134 | sk = conn->sk; | |
135 | sco_conn_unlock(conn); | |
136 | return sk; | |
137 | } | |
138 | ||
139 | static int sco_conn_del(struct hci_conn *hcon, int err) | |
140 | { | |
735cbc47 | 141 | struct sco_conn *conn = hcon->sco_data; |
1da177e4 LT |
142 | struct sock *sk; |
143 | ||
735cbc47 | 144 | if (!conn) |
1da177e4 LT |
145 | return 0; |
146 | ||
147 | BT_DBG("hcon %p conn %p, err %d", hcon, conn, err); | |
148 | ||
149 | /* Kill socket */ | |
735cbc47 AE |
150 | sk = sco_chan_get(conn); |
151 | if (sk) { | |
1da177e4 LT |
152 | bh_lock_sock(sk); |
153 | sco_sock_clear_timer(sk); | |
154 | sco_chan_del(sk, err); | |
155 | bh_unlock_sock(sk); | |
156 | sco_sock_kill(sk); | |
157 | } | |
158 | ||
159 | hcon->sco_data = NULL; | |
160 | kfree(conn); | |
161 | return 0; | |
162 | } | |
163 | ||
6039aa73 GP |
164 | static int sco_chan_add(struct sco_conn *conn, struct sock *sk, |
165 | struct sock *parent) | |
1da177e4 LT |
166 | { |
167 | int err = 0; | |
168 | ||
169 | sco_conn_lock(conn); | |
b9dbdbc1 | 170 | if (conn->sk) |
1da177e4 | 171 | err = -EBUSY; |
b9dbdbc1 | 172 | else |
1da177e4 | 173 | __sco_chan_add(conn, sk, parent); |
b9dbdbc1 | 174 | |
1da177e4 LT |
175 | sco_conn_unlock(conn); |
176 | return err; | |
177 | } | |
178 | ||
179 | static int sco_connect(struct sock *sk) | |
180 | { | |
1da177e4 LT |
181 | struct sco_conn *conn; |
182 | struct hci_conn *hcon; | |
183 | struct hci_dev *hdev; | |
b6a0dc82 | 184 | int err, type; |
1da177e4 | 185 | |
eea96364 | 186 | BT_DBG("%pMR -> %pMR", &sco_pi(sk)->src, &sco_pi(sk)->dst); |
1da177e4 | 187 | |
eea96364 | 188 | hdev = hci_get_route(&sco_pi(sk)->dst, &sco_pi(sk)->src); |
735cbc47 | 189 | if (!hdev) |
1da177e4 LT |
190 | return -EHOSTUNREACH; |
191 | ||
09fd0de5 | 192 | hci_dev_lock(hdev); |
1da177e4 | 193 | |
7cb127d5 MH |
194 | if (lmp_esco_capable(hdev) && !disable_esco) |
195 | type = ESCO_LINK; | |
196 | else | |
197 | type = SCO_LINK; | |
b6a0dc82 | 198 | |
79dc0087 FD |
199 | if (sco_pi(sk)->setting == BT_VOICE_TRANSPARENT && |
200 | (!lmp_transp_capable(hdev) || !lmp_esco_capable(hdev))) { | |
201 | err = -EOPNOTSUPP; | |
202 | goto done; | |
203 | } | |
204 | ||
eea96364 | 205 | hcon = hci_connect_sco(hdev, type, &sco_pi(sk)->dst, |
041987cf | 206 | sco_pi(sk)->setting); |
30e76272 VT |
207 | if (IS_ERR(hcon)) { |
208 | err = PTR_ERR(hcon); | |
1da177e4 | 209 | goto done; |
30e76272 | 210 | } |
1da177e4 | 211 | |
519e42b3 | 212 | conn = sco_conn_add(hcon); |
1da177e4 | 213 | if (!conn) { |
76a68ba0 | 214 | hci_conn_drop(hcon); |
30e76272 | 215 | err = -ENOMEM; |
1da177e4 LT |
216 | goto done; |
217 | } | |
218 | ||
219 | /* Update source addr of the socket */ | |
eea96364 | 220 | bacpy(&sco_pi(sk)->src, &hcon->src); |
1da177e4 LT |
221 | |
222 | err = sco_chan_add(conn, sk, NULL); | |
223 | if (err) | |
224 | goto done; | |
225 | ||
226 | if (hcon->state == BT_CONNECTED) { | |
227 | sco_sock_clear_timer(sk); | |
228 | sk->sk_state = BT_CONNECTED; | |
229 | } else { | |
230 | sk->sk_state = BT_CONNECT; | |
231 | sco_sock_set_timer(sk, sk->sk_sndtimeo); | |
232 | } | |
b6a0dc82 | 233 | |
1da177e4 | 234 | done: |
09fd0de5 | 235 | hci_dev_unlock(hdev); |
1da177e4 LT |
236 | hci_dev_put(hdev); |
237 | return err; | |
238 | } | |
239 | ||
6039aa73 | 240 | static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len) |
1da177e4 LT |
241 | { |
242 | struct sco_conn *conn = sco_pi(sk)->conn; | |
243 | struct sk_buff *skb; | |
088ce088 | 244 | int err; |
1da177e4 LT |
245 | |
246 | /* Check outgoing MTU */ | |
247 | if (len > conn->mtu) | |
248 | return -EINVAL; | |
249 | ||
250 | BT_DBG("sk %p len %d", sk, len); | |
251 | ||
088ce088 | 252 | skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); |
b9dbdbc1 | 253 | if (!skb) |
1da177e4 LT |
254 | return err; |
255 | ||
088ce088 | 256 | if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { |
b9dbdbc1 GP |
257 | kfree_skb(skb); |
258 | return -EFAULT; | |
1da177e4 LT |
259 | } |
260 | ||
0d861d8b | 261 | hci_send_sco(conn->hcon, skb); |
1da177e4 | 262 | |
088ce088 | 263 | return len; |
1da177e4 LT |
264 | } |
265 | ||
6039aa73 | 266 | static void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb) |
1da177e4 LT |
267 | { |
268 | struct sock *sk = sco_chan_get(conn); | |
269 | ||
270 | if (!sk) | |
271 | goto drop; | |
272 | ||
273 | BT_DBG("sk %p len %d", sk, skb->len); | |
274 | ||
275 | if (sk->sk_state != BT_CONNECTED) | |
276 | goto drop; | |
277 | ||
278 | if (!sock_queue_rcv_skb(sk, skb)) | |
279 | return; | |
280 | ||
281 | drop: | |
282 | kfree_skb(skb); | |
1da177e4 LT |
283 | } |
284 | ||
285 | /* -------- Socket interface ---------- */ | |
fb334059 | 286 | static struct sock *__sco_get_sock_listen_by_addr(bdaddr_t *ba) |
1da177e4 | 287 | { |
fb334059 MH |
288 | struct sock *sk; |
289 | ||
b67bfe0d | 290 | sk_for_each(sk, &sco_sk_list.head) { |
fb334059 MH |
291 | if (sk->sk_state != BT_LISTEN) |
292 | continue; | |
1da177e4 | 293 | |
eea96364 | 294 | if (!bacmp(&sco_pi(sk)->src, ba)) |
fb334059 MH |
295 | return sk; |
296 | } | |
297 | ||
298 | return NULL; | |
1da177e4 LT |
299 | } |
300 | ||
301 | /* Find socket listening on source bdaddr. | |
302 | * Returns closest match. | |
303 | */ | |
304 | static struct sock *sco_get_sock_listen(bdaddr_t *src) | |
305 | { | |
306 | struct sock *sk = NULL, *sk1 = NULL; | |
1da177e4 LT |
307 | |
308 | read_lock(&sco_sk_list.lock); | |
309 | ||
b67bfe0d | 310 | sk_for_each(sk, &sco_sk_list.head) { |
1da177e4 LT |
311 | if (sk->sk_state != BT_LISTEN) |
312 | continue; | |
313 | ||
314 | /* Exact match. */ | |
eea96364 | 315 | if (!bacmp(&sco_pi(sk)->src, src)) |
1da177e4 LT |
316 | break; |
317 | ||
318 | /* Closest match */ | |
eea96364 | 319 | if (!bacmp(&sco_pi(sk)->src, BDADDR_ANY)) |
1da177e4 LT |
320 | sk1 = sk; |
321 | } | |
322 | ||
323 | read_unlock(&sco_sk_list.lock); | |
324 | ||
b67bfe0d | 325 | return sk ? sk : sk1; |
1da177e4 LT |
326 | } |
327 | ||
328 | static void sco_sock_destruct(struct sock *sk) | |
329 | { | |
330 | BT_DBG("sk %p", sk); | |
331 | ||
332 | skb_queue_purge(&sk->sk_receive_queue); | |
333 | skb_queue_purge(&sk->sk_write_queue); | |
334 | } | |
335 | ||
336 | static void sco_sock_cleanup_listen(struct sock *parent) | |
337 | { | |
338 | struct sock *sk; | |
339 | ||
340 | BT_DBG("parent %p", parent); | |
341 | ||
342 | /* Close not yet accepted channels */ | |
343 | while ((sk = bt_accept_dequeue(parent, NULL))) { | |
344 | sco_sock_close(sk); | |
345 | sco_sock_kill(sk); | |
346 | } | |
347 | ||
348 | parent->sk_state = BT_CLOSED; | |
349 | sock_set_flag(parent, SOCK_ZAPPED); | |
350 | } | |
351 | ||
352 | /* Kill socket (only if zapped and orphan) | |
353 | * Must be called on unlocked socket. | |
354 | */ | |
355 | static void sco_sock_kill(struct sock *sk) | |
356 | { | |
357 | if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket) | |
358 | return; | |
359 | ||
360 | BT_DBG("sk %p state %d", sk, sk->sk_state); | |
361 | ||
362 | /* Kill poor orphan */ | |
363 | bt_sock_unlink(&sco_sk_list, sk); | |
364 | sock_set_flag(sk, SOCK_DEAD); | |
365 | sock_put(sk); | |
366 | } | |
367 | ||
fd0b3ff7 | 368 | static void __sco_sock_close(struct sock *sk) |
1da177e4 | 369 | { |
fd0b3ff7 | 370 | BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket); |
1da177e4 LT |
371 | |
372 | switch (sk->sk_state) { | |
373 | case BT_LISTEN: | |
374 | sco_sock_cleanup_listen(sk); | |
375 | break; | |
376 | ||
377 | case BT_CONNECTED: | |
378 | case BT_CONFIG: | |
b7e98b51 | 379 | if (sco_pi(sk)->conn->hcon) { |
4a77708b LAD |
380 | sk->sk_state = BT_DISCONN; |
381 | sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT); | |
76a68ba0 | 382 | hci_conn_drop(sco_pi(sk)->conn->hcon); |
4a77708b LAD |
383 | sco_pi(sk)->conn->hcon = NULL; |
384 | } else | |
385 | sco_chan_del(sk, ECONNRESET); | |
386 | break; | |
387 | ||
eb20ff9c | 388 | case BT_CONNECT2: |
1da177e4 LT |
389 | case BT_CONNECT: |
390 | case BT_DISCONN: | |
391 | sco_chan_del(sk, ECONNRESET); | |
392 | break; | |
393 | ||
394 | default: | |
395 | sock_set_flag(sk, SOCK_ZAPPED); | |
396 | break; | |
3ff50b79 | 397 | } |
fd0b3ff7 | 398 | } |
1da177e4 | 399 | |
fd0b3ff7 MH |
400 | /* Must be called on unlocked socket. */ |
401 | static void sco_sock_close(struct sock *sk) | |
402 | { | |
403 | sco_sock_clear_timer(sk); | |
404 | lock_sock(sk); | |
405 | __sco_sock_close(sk); | |
1da177e4 | 406 | release_sock(sk); |
1da177e4 LT |
407 | sco_sock_kill(sk); |
408 | } | |
409 | ||
410 | static void sco_sock_init(struct sock *sk, struct sock *parent) | |
411 | { | |
412 | BT_DBG("sk %p", sk); | |
413 | ||
6230c9b4 | 414 | if (parent) { |
1da177e4 | 415 | sk->sk_type = parent->sk_type; |
20714bfe | 416 | bt_sk(sk)->flags = bt_sk(parent)->flags; |
6230c9b4 PM |
417 | security_sk_clone(parent, sk); |
418 | } | |
1da177e4 LT |
419 | } |
420 | ||
421 | static struct proto sco_proto = { | |
422 | .name = "SCO", | |
423 | .owner = THIS_MODULE, | |
424 | .obj_size = sizeof(struct sco_pinfo) | |
425 | }; | |
426 | ||
1b8d7ae4 | 427 | static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio) |
1da177e4 LT |
428 | { |
429 | struct sock *sk; | |
430 | ||
6257ff21 | 431 | sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto); |
1da177e4 LT |
432 | if (!sk) |
433 | return NULL; | |
434 | ||
435 | sock_init_data(sock, sk); | |
436 | INIT_LIST_HEAD(&bt_sk(sk)->accept_q); | |
437 | ||
438 | sk->sk_destruct = sco_sock_destruct; | |
439 | sk->sk_sndtimeo = SCO_CONN_TIMEOUT; | |
440 | ||
441 | sock_reset_flag(sk, SOCK_ZAPPED); | |
442 | ||
443 | sk->sk_protocol = proto; | |
444 | sk->sk_state = BT_OPEN; | |
445 | ||
ad10b1a4 FD |
446 | sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT; |
447 | ||
b24b8a24 | 448 | setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk); |
1da177e4 LT |
449 | |
450 | bt_sock_link(&sco_sk_list, sk); | |
451 | return sk; | |
452 | } | |
453 | ||
3f378b68 EP |
454 | static int sco_sock_create(struct net *net, struct socket *sock, int protocol, |
455 | int kern) | |
1da177e4 LT |
456 | { |
457 | struct sock *sk; | |
458 | ||
459 | BT_DBG("sock %p", sock); | |
460 | ||
461 | sock->state = SS_UNCONNECTED; | |
462 | ||
463 | if (sock->type != SOCK_SEQPACKET) | |
464 | return -ESOCKTNOSUPPORT; | |
465 | ||
466 | sock->ops = &sco_sock_ops; | |
467 | ||
1b8d7ae4 | 468 | sk = sco_sock_alloc(net, sock, protocol, GFP_ATOMIC); |
74da626a | 469 | if (!sk) |
1da177e4 LT |
470 | return -ENOMEM; |
471 | ||
472 | sco_sock_init(sk, NULL); | |
473 | return 0; | |
474 | } | |
475 | ||
476 | static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) | |
477 | { | |
478 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
479 | struct sock *sk = sock->sk; | |
1da177e4 LT |
480 | int err = 0; |
481 | ||
6ed93dc6 | 482 | BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr); |
1da177e4 LT |
483 | |
484 | if (!addr || addr->sa_family != AF_BLUETOOTH) | |
485 | return -EINVAL; | |
486 | ||
487 | lock_sock(sk); | |
488 | ||
489 | if (sk->sk_state != BT_OPEN) { | |
490 | err = -EBADFD; | |
491 | goto done; | |
492 | } | |
493 | ||
8ed21f7e MH |
494 | if (sk->sk_type != SOCK_SEQPACKET) { |
495 | err = -EINVAL; | |
496 | goto done; | |
1da177e4 LT |
497 | } |
498 | ||
eea96364 | 499 | bacpy(&sco_pi(sk)->src, &sa->sco_bdaddr); |
8ed21f7e MH |
500 | |
501 | sk->sk_state = BT_BOUND; | |
1da177e4 LT |
502 | |
503 | done: | |
504 | release_sock(sk); | |
505 | return err; | |
506 | } | |
507 | ||
508 | static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags) | |
509 | { | |
510 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
511 | struct sock *sk = sock->sk; | |
92f185c8 | 512 | int err; |
1da177e4 LT |
513 | |
514 | BT_DBG("sk %p", sk); | |
515 | ||
6503d961 CG |
516 | if (alen < sizeof(struct sockaddr_sco) || |
517 | addr->sa_family != AF_BLUETOOTH) | |
1da177e4 LT |
518 | return -EINVAL; |
519 | ||
520 | if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) | |
521 | return -EBADFD; | |
522 | ||
523 | if (sk->sk_type != SOCK_SEQPACKET) | |
524 | return -EINVAL; | |
525 | ||
526 | lock_sock(sk); | |
527 | ||
528 | /* Set destination address and psm */ | |
eea96364 | 529 | bacpy(&sco_pi(sk)->dst, &sa->sco_bdaddr); |
1da177e4 | 530 | |
735cbc47 AE |
531 | err = sco_connect(sk); |
532 | if (err) | |
1da177e4 LT |
533 | goto done; |
534 | ||
8e87d142 | 535 | err = bt_sock_wait_state(sk, BT_CONNECTED, |
be7c2b99 | 536 | sock_sndtimeo(sk, flags & O_NONBLOCK)); |
1da177e4 LT |
537 | |
538 | done: | |
539 | release_sock(sk); | |
540 | return err; | |
541 | } | |
542 | ||
543 | static int sco_sock_listen(struct socket *sock, int backlog) | |
544 | { | |
545 | struct sock *sk = sock->sk; | |
eea96364 | 546 | bdaddr_t *src = &sco_pi(sk)->src; |
1da177e4 LT |
547 | int err = 0; |
548 | ||
549 | BT_DBG("sk %p backlog %d", sk, backlog); | |
550 | ||
551 | lock_sock(sk); | |
552 | ||
7d5d775a | 553 | if (sk->sk_state != BT_BOUND) { |
1da177e4 LT |
554 | err = -EBADFD; |
555 | goto done; | |
556 | } | |
557 | ||
7d5d775a MH |
558 | if (sk->sk_type != SOCK_SEQPACKET) { |
559 | err = -EINVAL; | |
560 | goto done; | |
561 | } | |
562 | ||
fb334059 MH |
563 | write_lock(&sco_sk_list.lock); |
564 | ||
565 | if (__sco_get_sock_listen_by_addr(src)) { | |
566 | err = -EADDRINUSE; | |
567 | goto unlock; | |
568 | } | |
569 | ||
1da177e4 LT |
570 | sk->sk_max_ack_backlog = backlog; |
571 | sk->sk_ack_backlog = 0; | |
fb334059 | 572 | |
1da177e4 LT |
573 | sk->sk_state = BT_LISTEN; |
574 | ||
fb334059 MH |
575 | unlock: |
576 | write_unlock(&sco_sk_list.lock); | |
577 | ||
1da177e4 LT |
578 | done: |
579 | release_sock(sk); | |
580 | return err; | |
581 | } | |
582 | ||
583 | static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags) | |
584 | { | |
585 | DECLARE_WAITQUEUE(wait, current); | |
586 | struct sock *sk = sock->sk, *ch; | |
587 | long timeo; | |
588 | int err = 0; | |
589 | ||
590 | lock_sock(sk); | |
591 | ||
1da177e4 LT |
592 | timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK); |
593 | ||
594 | BT_DBG("sk %p timeo %ld", sk, timeo); | |
595 | ||
596 | /* Wait for an incoming connection. (wake-one). */ | |
aa395145 | 597 | add_wait_queue_exclusive(sk_sleep(sk), &wait); |
552b0d3c | 598 | while (1) { |
1da177e4 | 599 | set_current_state(TASK_INTERRUPTIBLE); |
552b0d3c PH |
600 | |
601 | if (sk->sk_state != BT_LISTEN) { | |
602 | err = -EBADFD; | |
1da177e4 LT |
603 | break; |
604 | } | |
605 | ||
552b0d3c PH |
606 | ch = bt_accept_dequeue(sk, newsock); |
607 | if (ch) | |
608 | break; | |
1da177e4 | 609 | |
552b0d3c PH |
610 | if (!timeo) { |
611 | err = -EAGAIN; | |
1da177e4 LT |
612 | break; |
613 | } | |
614 | ||
615 | if (signal_pending(current)) { | |
616 | err = sock_intr_errno(timeo); | |
617 | break; | |
618 | } | |
552b0d3c PH |
619 | |
620 | release_sock(sk); | |
621 | timeo = schedule_timeout(timeo); | |
622 | lock_sock(sk); | |
1da177e4 | 623 | } |
552b0d3c | 624 | __set_current_state(TASK_RUNNING); |
aa395145 | 625 | remove_wait_queue(sk_sleep(sk), &wait); |
1da177e4 LT |
626 | |
627 | if (err) | |
628 | goto done; | |
629 | ||
630 | newsock->state = SS_CONNECTED; | |
631 | ||
632 | BT_DBG("new socket %p", ch); | |
633 | ||
634 | done: | |
635 | release_sock(sk); | |
636 | return err; | |
637 | } | |
638 | ||
639 | static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer) | |
640 | { | |
641 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
642 | struct sock *sk = sock->sk; | |
643 | ||
644 | BT_DBG("sock %p, sk %p", sock, sk); | |
645 | ||
646 | addr->sa_family = AF_BLUETOOTH; | |
647 | *len = sizeof(struct sockaddr_sco); | |
648 | ||
649 | if (peer) | |
eea96364 | 650 | bacpy(&sa->sco_bdaddr, &sco_pi(sk)->dst); |
1da177e4 | 651 | else |
eea96364 | 652 | bacpy(&sa->sco_bdaddr, &sco_pi(sk)->src); |
1da177e4 LT |
653 | |
654 | return 0; | |
655 | } | |
656 | ||
8e87d142 | 657 | static int sco_sock_sendmsg(struct kiocb *iocb, struct socket *sock, |
1da177e4 LT |
658 | struct msghdr *msg, size_t len) |
659 | { | |
660 | struct sock *sk = sock->sk; | |
b9dbdbc1 | 661 | int err; |
1da177e4 LT |
662 | |
663 | BT_DBG("sock %p, sk %p", sock, sk); | |
664 | ||
c1cbe4b7 BL |
665 | err = sock_error(sk); |
666 | if (err) | |
667 | return err; | |
1da177e4 LT |
668 | |
669 | if (msg->msg_flags & MSG_OOB) | |
670 | return -EOPNOTSUPP; | |
671 | ||
672 | lock_sock(sk); | |
673 | ||
674 | if (sk->sk_state == BT_CONNECTED) | |
675 | err = sco_send_frame(sk, msg, len); | |
676 | else | |
677 | err = -ENOTCONN; | |
678 | ||
679 | release_sock(sk); | |
680 | return err; | |
681 | } | |
682 | ||
2f69a82a | 683 | static void sco_conn_defer_accept(struct hci_conn *conn, u16 setting) |
fa5513be FD |
684 | { |
685 | struct hci_dev *hdev = conn->hdev; | |
686 | ||
687 | BT_DBG("conn %p", conn); | |
688 | ||
689 | conn->state = BT_CONFIG; | |
690 | ||
691 | if (!lmp_esco_capable(hdev)) { | |
692 | struct hci_cp_accept_conn_req cp; | |
693 | ||
694 | bacpy(&cp.bdaddr, &conn->dst); | |
33f24048 | 695 | cp.role = 0x00; /* Ignored */ |
fa5513be FD |
696 | |
697 | hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp); | |
698 | } else { | |
699 | struct hci_cp_accept_sync_conn_req cp; | |
700 | ||
701 | bacpy(&cp.bdaddr, &conn->dst); | |
702 | cp.pkt_type = cpu_to_le16(conn->pkt_type); | |
703 | ||
dcf4adbf JP |
704 | cp.tx_bandwidth = cpu_to_le32(0x00001f40); |
705 | cp.rx_bandwidth = cpu_to_le32(0x00001f40); | |
2f69a82a FD |
706 | cp.content_format = cpu_to_le16(setting); |
707 | ||
708 | switch (setting & SCO_AIRMODE_MASK) { | |
709 | case SCO_AIRMODE_TRANSP: | |
710 | if (conn->pkt_type & ESCO_2EV3) | |
dcf4adbf | 711 | cp.max_latency = cpu_to_le16(0x0008); |
2f69a82a | 712 | else |
dcf4adbf | 713 | cp.max_latency = cpu_to_le16(0x000D); |
2f69a82a FD |
714 | cp.retrans_effort = 0x02; |
715 | break; | |
716 | case SCO_AIRMODE_CVSD: | |
dcf4adbf | 717 | cp.max_latency = cpu_to_le16(0xffff); |
2f69a82a FD |
718 | cp.retrans_effort = 0xff; |
719 | break; | |
720 | } | |
fa5513be FD |
721 | |
722 | hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, | |
723 | sizeof(cp), &cp); | |
724 | } | |
725 | } | |
726 | ||
20714bfe FD |
727 | static int sco_sock_recvmsg(struct kiocb *iocb, struct socket *sock, |
728 | struct msghdr *msg, size_t len, int flags) | |
729 | { | |
730 | struct sock *sk = sock->sk; | |
731 | struct sco_pinfo *pi = sco_pi(sk); | |
732 | ||
733 | lock_sock(sk); | |
734 | ||
735 | if (sk->sk_state == BT_CONNECT2 && | |
736 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { | |
2f69a82a | 737 | sco_conn_defer_accept(pi->conn->hcon, pi->setting); |
20714bfe FD |
738 | sk->sk_state = BT_CONFIG; |
739 | ||
740 | release_sock(sk); | |
741 | return 0; | |
742 | } | |
743 | ||
744 | release_sock(sk); | |
745 | ||
746 | return bt_sock_recvmsg(iocb, sock, msg, len, flags); | |
747 | } | |
748 | ||
b7058842 | 749 | static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) |
1da177e4 LT |
750 | { |
751 | struct sock *sk = sock->sk; | |
ad10b1a4 FD |
752 | int len, err = 0; |
753 | struct bt_voice voice; | |
b96e9c67 | 754 | u32 opt; |
1da177e4 LT |
755 | |
756 | BT_DBG("sk %p", sk); | |
757 | ||
758 | lock_sock(sk); | |
759 | ||
760 | switch (optname) { | |
b96e9c67 FD |
761 | |
762 | case BT_DEFER_SETUP: | |
763 | if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) { | |
764 | err = -EINVAL; | |
765 | break; | |
766 | } | |
767 | ||
768 | if (get_user(opt, (u32 __user *) optval)) { | |
769 | err = -EFAULT; | |
770 | break; | |
771 | } | |
772 | ||
773 | if (opt) | |
774 | set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); | |
775 | else | |
776 | clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); | |
777 | break; | |
778 | ||
ad10b1a4 FD |
779 | case BT_VOICE: |
780 | if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND && | |
781 | sk->sk_state != BT_CONNECT2) { | |
782 | err = -EINVAL; | |
783 | break; | |
784 | } | |
785 | ||
786 | voice.setting = sco_pi(sk)->setting; | |
787 | ||
788 | len = min_t(unsigned int, sizeof(voice), optlen); | |
789 | if (copy_from_user((char *) &voice, optval, len)) { | |
790 | err = -EFAULT; | |
791 | break; | |
792 | } | |
793 | ||
794 | /* Explicitly check for these values */ | |
795 | if (voice.setting != BT_VOICE_TRANSPARENT && | |
796 | voice.setting != BT_VOICE_CVSD_16BIT) { | |
797 | err = -EINVAL; | |
798 | break; | |
799 | } | |
800 | ||
801 | sco_pi(sk)->setting = voice.setting; | |
802 | break; | |
803 | ||
1da177e4 LT |
804 | default: |
805 | err = -ENOPROTOOPT; | |
806 | break; | |
807 | } | |
808 | ||
809 | release_sock(sk); | |
810 | return err; | |
811 | } | |
812 | ||
d58daf42 | 813 | static int sco_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen) |
1da177e4 LT |
814 | { |
815 | struct sock *sk = sock->sk; | |
816 | struct sco_options opts; | |
817 | struct sco_conninfo cinfo; | |
8e87d142 | 818 | int len, err = 0; |
1da177e4 LT |
819 | |
820 | BT_DBG("sk %p", sk); | |
821 | ||
822 | if (get_user(len, optlen)) | |
823 | return -EFAULT; | |
824 | ||
825 | lock_sock(sk); | |
826 | ||
827 | switch (optname) { | |
828 | case SCO_OPTIONS: | |
9d225d22 JH |
829 | if (sk->sk_state != BT_CONNECTED && |
830 | !(sk->sk_state == BT_CONNECT2 && | |
831 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) { | |
1da177e4 LT |
832 | err = -ENOTCONN; |
833 | break; | |
834 | } | |
835 | ||
836 | opts.mtu = sco_pi(sk)->conn->mtu; | |
837 | ||
838 | BT_DBG("mtu %d", opts.mtu); | |
839 | ||
840 | len = min_t(unsigned int, len, sizeof(opts)); | |
841 | if (copy_to_user(optval, (char *)&opts, len)) | |
842 | err = -EFAULT; | |
843 | ||
844 | break; | |
845 | ||
846 | case SCO_CONNINFO: | |
9d225d22 JH |
847 | if (sk->sk_state != BT_CONNECTED && |
848 | !(sk->sk_state == BT_CONNECT2 && | |
849 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) { | |
1da177e4 LT |
850 | err = -ENOTCONN; |
851 | break; | |
852 | } | |
853 | ||
c4c896e1 | 854 | memset(&cinfo, 0, sizeof(cinfo)); |
1da177e4 LT |
855 | cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle; |
856 | memcpy(cinfo.dev_class, sco_pi(sk)->conn->hcon->dev_class, 3); | |
857 | ||
858 | len = min_t(unsigned int, len, sizeof(cinfo)); | |
859 | if (copy_to_user(optval, (char *)&cinfo, len)) | |
860 | err = -EFAULT; | |
861 | ||
862 | break; | |
863 | ||
864 | default: | |
865 | err = -ENOPROTOOPT; | |
866 | break; | |
867 | } | |
868 | ||
869 | release_sock(sk); | |
870 | return err; | |
871 | } | |
872 | ||
d58daf42 MH |
873 | static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen) |
874 | { | |
875 | struct sock *sk = sock->sk; | |
876 | int len, err = 0; | |
ad10b1a4 | 877 | struct bt_voice voice; |
d58daf42 MH |
878 | |
879 | BT_DBG("sk %p", sk); | |
880 | ||
881 | if (level == SOL_SCO) | |
882 | return sco_sock_getsockopt_old(sock, optname, optval, optlen); | |
883 | ||
884 | if (get_user(len, optlen)) | |
885 | return -EFAULT; | |
886 | ||
887 | lock_sock(sk); | |
888 | ||
889 | switch (optname) { | |
b96e9c67 FD |
890 | |
891 | case BT_DEFER_SETUP: | |
892 | if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) { | |
893 | err = -EINVAL; | |
894 | break; | |
895 | } | |
896 | ||
897 | if (put_user(test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags), | |
898 | (u32 __user *) optval)) | |
899 | err = -EFAULT; | |
900 | ||
901 | break; | |
902 | ||
ad10b1a4 FD |
903 | case BT_VOICE: |
904 | voice.setting = sco_pi(sk)->setting; | |
905 | ||
906 | len = min_t(unsigned int, len, sizeof(voice)); | |
907 | if (copy_to_user(optval, (char *)&voice, len)) | |
908 | err = -EFAULT; | |
909 | ||
910 | break; | |
911 | ||
d58daf42 MH |
912 | default: |
913 | err = -ENOPROTOOPT; | |
914 | break; | |
915 | } | |
916 | ||
917 | release_sock(sk); | |
918 | return err; | |
919 | } | |
920 | ||
fd0b3ff7 MH |
921 | static int sco_sock_shutdown(struct socket *sock, int how) |
922 | { | |
923 | struct sock *sk = sock->sk; | |
924 | int err = 0; | |
925 | ||
926 | BT_DBG("sock %p, sk %p", sock, sk); | |
927 | ||
928 | if (!sk) | |
929 | return 0; | |
930 | ||
931 | lock_sock(sk); | |
932 | if (!sk->sk_shutdown) { | |
933 | sk->sk_shutdown = SHUTDOWN_MASK; | |
934 | sco_sock_clear_timer(sk); | |
935 | __sco_sock_close(sk); | |
936 | ||
937 | if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) | |
938 | err = bt_sock_wait_state(sk, BT_CLOSED, | |
be7c2b99 | 939 | sk->sk_lingertime); |
fd0b3ff7 MH |
940 | } |
941 | release_sock(sk); | |
942 | return err; | |
943 | } | |
944 | ||
1da177e4 LT |
945 | static int sco_sock_release(struct socket *sock) |
946 | { | |
947 | struct sock *sk = sock->sk; | |
948 | int err = 0; | |
949 | ||
950 | BT_DBG("sock %p, sk %p", sock, sk); | |
951 | ||
952 | if (!sk) | |
953 | return 0; | |
954 | ||
955 | sco_sock_close(sk); | |
956 | ||
957 | if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) { | |
958 | lock_sock(sk); | |
959 | err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); | |
960 | release_sock(sk); | |
961 | } | |
962 | ||
963 | sock_orphan(sk); | |
964 | sco_sock_kill(sk); | |
965 | return err; | |
966 | } | |
967 | ||
968 | static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent) | |
969 | { | |
970 | BT_DBG("conn %p", conn); | |
971 | ||
972 | sco_pi(sk)->conn = conn; | |
973 | conn->sk = sk; | |
974 | ||
975 | if (parent) | |
976 | bt_accept_enqueue(parent, sk); | |
977 | } | |
978 | ||
8e87d142 | 979 | /* Delete channel. |
1da177e4 LT |
980 | * Must be called on the locked socket. */ |
981 | static void sco_chan_del(struct sock *sk, int err) | |
982 | { | |
983 | struct sco_conn *conn; | |
984 | ||
985 | conn = sco_pi(sk)->conn; | |
986 | ||
987 | BT_DBG("sk %p, conn %p, err %d", sk, conn, err); | |
988 | ||
0b27a4b9 GP |
989 | if (conn) { |
990 | sco_conn_lock(conn); | |
991 | conn->sk = NULL; | |
992 | sco_pi(sk)->conn = NULL; | |
993 | sco_conn_unlock(conn); | |
994 | ||
995 | if (conn->hcon) | |
76a68ba0 | 996 | hci_conn_drop(conn->hcon); |
0b27a4b9 GP |
997 | } |
998 | ||
1da177e4 LT |
999 | sk->sk_state = BT_CLOSED; |
1000 | sk->sk_err = err; | |
1001 | sk->sk_state_change(sk); | |
1002 | ||
1003 | sock_set_flag(sk, SOCK_ZAPPED); | |
1004 | } | |
1005 | ||
1006 | static void sco_conn_ready(struct sco_conn *conn) | |
1007 | { | |
735cbc47 AE |
1008 | struct sock *parent; |
1009 | struct sock *sk = conn->sk; | |
1da177e4 LT |
1010 | |
1011 | BT_DBG("conn %p", conn); | |
1012 | ||
735cbc47 | 1013 | if (sk) { |
1da177e4 LT |
1014 | sco_sock_clear_timer(sk); |
1015 | bh_lock_sock(sk); | |
1016 | sk->sk_state = BT_CONNECTED; | |
1017 | sk->sk_state_change(sk); | |
1018 | bh_unlock_sock(sk); | |
1019 | } else { | |
40528088 AG |
1020 | sco_conn_lock(conn); |
1021 | ||
041987cf | 1022 | parent = sco_get_sock_listen(&conn->hcon->src); |
40528088 AG |
1023 | if (!parent) { |
1024 | sco_conn_unlock(conn); | |
1025 | return; | |
1026 | } | |
1da177e4 LT |
1027 | |
1028 | bh_lock_sock(parent); | |
1029 | ||
b9dbdbc1 | 1030 | sk = sco_sock_alloc(sock_net(parent), NULL, |
be7c2b99 | 1031 | BTPROTO_SCO, GFP_ATOMIC); |
1da177e4 LT |
1032 | if (!sk) { |
1033 | bh_unlock_sock(parent); | |
40528088 AG |
1034 | sco_conn_unlock(conn); |
1035 | return; | |
1da177e4 LT |
1036 | } |
1037 | ||
1038 | sco_sock_init(sk, parent); | |
1039 | ||
eea96364 MH |
1040 | bacpy(&sco_pi(sk)->src, &conn->hcon->src); |
1041 | bacpy(&sco_pi(sk)->dst, &conn->hcon->dst); | |
1da177e4 LT |
1042 | |
1043 | hci_conn_hold(conn->hcon); | |
1044 | __sco_chan_add(conn, sk, parent); | |
1045 | ||
20714bfe FD |
1046 | if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags)) |
1047 | sk->sk_state = BT_CONNECT2; | |
1048 | else | |
1049 | sk->sk_state = BT_CONNECTED; | |
1da177e4 LT |
1050 | |
1051 | /* Wake up parent */ | |
676d2369 | 1052 | parent->sk_data_ready(parent); |
1da177e4 LT |
1053 | |
1054 | bh_unlock_sock(parent); | |
1da177e4 | 1055 | |
40528088 AG |
1056 | sco_conn_unlock(conn); |
1057 | } | |
1da177e4 LT |
1058 | } |
1059 | ||
1060 | /* ----- SCO interface with lower layer (HCI) ----- */ | |
20714bfe | 1061 | int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags) |
1da177e4 | 1062 | { |
fc5fef61 | 1063 | struct sock *sk; |
71aeeaa1 MH |
1064 | int lm = 0; |
1065 | ||
6ed93dc6 | 1066 | BT_DBG("hdev %s, bdaddr %pMR", hdev->name, bdaddr); |
1da177e4 | 1067 | |
71aeeaa1 MH |
1068 | /* Find listening sockets */ |
1069 | read_lock(&sco_sk_list.lock); | |
b67bfe0d | 1070 | sk_for_each(sk, &sco_sk_list.head) { |
71aeeaa1 MH |
1071 | if (sk->sk_state != BT_LISTEN) |
1072 | continue; | |
1073 | ||
eea96364 MH |
1074 | if (!bacmp(&sco_pi(sk)->src, &hdev->bdaddr) || |
1075 | !bacmp(&sco_pi(sk)->src, BDADDR_ANY)) { | |
71aeeaa1 | 1076 | lm |= HCI_LM_ACCEPT; |
20714bfe FD |
1077 | |
1078 | if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) | |
1079 | *flags |= HCI_PROTO_DEFER; | |
71aeeaa1 MH |
1080 | break; |
1081 | } | |
1082 | } | |
1083 | read_unlock(&sco_sk_list.lock); | |
1084 | ||
1085 | return lm; | |
1da177e4 LT |
1086 | } |
1087 | ||
9e664631 | 1088 | void sco_connect_cfm(struct hci_conn *hcon, __u8 status) |
1da177e4 | 1089 | { |
6ed93dc6 | 1090 | BT_DBG("hcon %p bdaddr %pMR status %d", hcon, &hcon->dst, status); |
1da177e4 LT |
1091 | if (!status) { |
1092 | struct sco_conn *conn; | |
1093 | ||
519e42b3 | 1094 | conn = sco_conn_add(hcon); |
1da177e4 LT |
1095 | if (conn) |
1096 | sco_conn_ready(conn); | |
8e87d142 | 1097 | } else |
e175072f | 1098 | sco_conn_del(hcon, bt_to_errno(status)); |
1da177e4 LT |
1099 | } |
1100 | ||
9e664631 | 1101 | void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason) |
1da177e4 LT |
1102 | { |
1103 | BT_DBG("hcon %p reason %d", hcon, reason); | |
1104 | ||
e175072f | 1105 | sco_conn_del(hcon, bt_to_errno(reason)); |
1da177e4 LT |
1106 | } |
1107 | ||
686ebf28 | 1108 | int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) |
1da177e4 LT |
1109 | { |
1110 | struct sco_conn *conn = hcon->sco_data; | |
1111 | ||
1112 | if (!conn) | |
1113 | goto drop; | |
1114 | ||
1115 | BT_DBG("conn %p len %d", conn, skb->len); | |
1116 | ||
1117 | if (skb->len) { | |
1118 | sco_recv_frame(conn, skb); | |
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | drop: | |
8e87d142 | 1123 | kfree_skb(skb); |
1da177e4 LT |
1124 | return 0; |
1125 | } | |
1126 | ||
aef7d97c | 1127 | static int sco_debugfs_show(struct seq_file *f, void *p) |
1da177e4 LT |
1128 | { |
1129 | struct sock *sk; | |
1da177e4 | 1130 | |
ee65d19e | 1131 | read_lock(&sco_sk_list.lock); |
1da177e4 | 1132 | |
b67bfe0d | 1133 | sk_for_each(sk, &sco_sk_list.head) { |
eea96364 MH |
1134 | seq_printf(f, "%pMR %pMR %d\n", &sco_pi(sk)->src, |
1135 | &sco_pi(sk)->dst, sk->sk_state); | |
be9d1227 | 1136 | } |
1da177e4 | 1137 | |
ee65d19e | 1138 | read_unlock(&sco_sk_list.lock); |
1da177e4 | 1139 | |
aef7d97c | 1140 | return 0; |
1da177e4 LT |
1141 | } |
1142 | ||
aef7d97c MH |
1143 | static int sco_debugfs_open(struct inode *inode, struct file *file) |
1144 | { | |
1145 | return single_open(file, sco_debugfs_show, inode->i_private); | |
1146 | } | |
1147 | ||
1148 | static const struct file_operations sco_debugfs_fops = { | |
1149 | .open = sco_debugfs_open, | |
1150 | .read = seq_read, | |
1151 | .llseek = seq_lseek, | |
1152 | .release = single_release, | |
1153 | }; | |
1154 | ||
1155 | static struct dentry *sco_debugfs; | |
1da177e4 | 1156 | |
90ddc4f0 | 1157 | static const struct proto_ops sco_sock_ops = { |
1da177e4 LT |
1158 | .family = PF_BLUETOOTH, |
1159 | .owner = THIS_MODULE, | |
1160 | .release = sco_sock_release, | |
1161 | .bind = sco_sock_bind, | |
1162 | .connect = sco_sock_connect, | |
1163 | .listen = sco_sock_listen, | |
1164 | .accept = sco_sock_accept, | |
1165 | .getname = sco_sock_getname, | |
1166 | .sendmsg = sco_sock_sendmsg, | |
20714bfe | 1167 | .recvmsg = sco_sock_recvmsg, |
1da177e4 | 1168 | .poll = bt_sock_poll, |
3241ad82 | 1169 | .ioctl = bt_sock_ioctl, |
1da177e4 LT |
1170 | .mmap = sock_no_mmap, |
1171 | .socketpair = sock_no_socketpair, | |
fd0b3ff7 | 1172 | .shutdown = sco_sock_shutdown, |
1da177e4 LT |
1173 | .setsockopt = sco_sock_setsockopt, |
1174 | .getsockopt = sco_sock_getsockopt | |
1175 | }; | |
1176 | ||
ec1b4cf7 | 1177 | static const struct net_proto_family sco_sock_family_ops = { |
1da177e4 LT |
1178 | .family = PF_BLUETOOTH, |
1179 | .owner = THIS_MODULE, | |
1180 | .create = sco_sock_create, | |
1181 | }; | |
1182 | ||
64274518 | 1183 | int __init sco_init(void) |
1da177e4 LT |
1184 | { |
1185 | int err; | |
1186 | ||
1187 | err = proto_register(&sco_proto, 0); | |
1188 | if (err < 0) | |
1189 | return err; | |
1190 | ||
1191 | err = bt_sock_register(BTPROTO_SCO, &sco_sock_family_ops); | |
1192 | if (err < 0) { | |
1193 | BT_ERR("SCO socket registration failed"); | |
1194 | goto error; | |
1195 | } | |
1196 | ||
b0316615 | 1197 | err = bt_procfs_init(&init_net, "sco", &sco_sk_list, NULL); |
de9b9212 MY |
1198 | if (err < 0) { |
1199 | BT_ERR("Failed to create SCO proc file"); | |
1200 | bt_sock_unregister(BTPROTO_SCO); | |
1201 | goto error; | |
1202 | } | |
1203 | ||
1da177e4 LT |
1204 | BT_INFO("SCO socket layer initialized"); |
1205 | ||
1120e4bf MH |
1206 | if (IS_ERR_OR_NULL(bt_debugfs)) |
1207 | return 0; | |
1208 | ||
1209 | sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs, | |
1210 | NULL, &sco_debugfs_fops); | |
1211 | ||
1da177e4 LT |
1212 | return 0; |
1213 | ||
1214 | error: | |
1215 | proto_unregister(&sco_proto); | |
1216 | return err; | |
1217 | } | |
1218 | ||
64274518 | 1219 | void __exit sco_exit(void) |
1da177e4 | 1220 | { |
de9b9212 MY |
1221 | bt_procfs_cleanup(&init_net, "sco"); |
1222 | ||
aef7d97c | 1223 | debugfs_remove(sco_debugfs); |
1da177e4 | 1224 | |
5e9d7f86 | 1225 | bt_sock_unregister(BTPROTO_SCO); |
1da177e4 | 1226 | |
1da177e4 LT |
1227 | proto_unregister(&sco_proto); |
1228 | } | |
1229 | ||
7cb127d5 MH |
1230 | module_param(disable_esco, bool, 0644); |
1231 | MODULE_PARM_DESC(disable_esco, "Disable eSCO connection creation"); |