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 | ||
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_del(struct sock *sk, int err); |
57 | ||
1da177e4 LT |
58 | static void sco_sock_close(struct sock *sk); |
59 | static void sco_sock_kill(struct sock *sk); | |
60 | ||
2a0dccb3 MH |
61 | /* ----- SCO socket info ----- */ |
62 | #define sco_pi(sk) ((struct sco_pinfo *) sk) | |
63 | ||
64 | struct sco_pinfo { | |
65 | struct bt_sock bt; | |
66 | bdaddr_t src; | |
67 | bdaddr_t dst; | |
68 | __u32 flags; | |
69 | __u16 setting; | |
70 | struct sco_conn *conn; | |
71 | }; | |
72 | ||
1da177e4 | 73 | /* ---- SCO timers ---- */ |
068d69e5 MH |
74 | #define SCO_CONN_TIMEOUT (HZ * 40) |
75 | #define SCO_DISCONN_TIMEOUT (HZ * 2) | |
76 | ||
1da177e4 LT |
77 | static void sco_sock_timeout(unsigned long arg) |
78 | { | |
79 | struct sock *sk = (struct sock *) arg; | |
80 | ||
81 | BT_DBG("sock %p state %d", sk, sk->sk_state); | |
82 | ||
83 | bh_lock_sock(sk); | |
84 | sk->sk_err = ETIMEDOUT; | |
85 | sk->sk_state_change(sk); | |
86 | bh_unlock_sock(sk); | |
87 | ||
88 | sco_sock_kill(sk); | |
89 | sock_put(sk); | |
90 | } | |
91 | ||
92 | static void sco_sock_set_timer(struct sock *sk, long timeout) | |
93 | { | |
94 | BT_DBG("sock %p state %d timeout %ld", sk, sk->sk_state, timeout); | |
95 | sk_reset_timer(sk, &sk->sk_timer, jiffies + timeout); | |
96 | } | |
97 | ||
98 | static void sco_sock_clear_timer(struct sock *sk) | |
99 | { | |
100 | BT_DBG("sock %p state %d", sk, sk->sk_state); | |
101 | sk_stop_timer(sk, &sk->sk_timer); | |
102 | } | |
103 | ||
1da177e4 | 104 | /* ---- SCO connections ---- */ |
519e42b3 | 105 | static struct sco_conn *sco_conn_add(struct hci_conn *hcon) |
1da177e4 LT |
106 | { |
107 | struct hci_dev *hdev = hcon->hdev; | |
25ea6db0 | 108 | struct sco_conn *conn = hcon->sco_data; |
1da177e4 | 109 | |
519e42b3 | 110 | if (conn) |
1da177e4 LT |
111 | return conn; |
112 | ||
c10cc5a9 | 113 | conn = kzalloc(sizeof(struct sco_conn), GFP_KERNEL); |
25ea6db0 | 114 | if (!conn) |
1da177e4 | 115 | return NULL; |
1da177e4 LT |
116 | |
117 | spin_lock_init(&conn->lock); | |
118 | ||
119 | hcon->sco_data = conn; | |
120 | conn->hcon = hcon; | |
121 | ||
1da177e4 LT |
122 | if (hdev->sco_mtu > 0) |
123 | conn->mtu = hdev->sco_mtu; | |
124 | else | |
125 | conn->mtu = 60; | |
126 | ||
127 | BT_DBG("hcon %p conn %p", hcon, conn); | |
25ea6db0 | 128 | |
1da177e4 LT |
129 | return conn; |
130 | } | |
131 | ||
6039aa73 | 132 | static struct sock *sco_chan_get(struct sco_conn *conn) |
1da177e4 LT |
133 | { |
134 | struct sock *sk = NULL; | |
135 | sco_conn_lock(conn); | |
136 | sk = conn->sk; | |
137 | sco_conn_unlock(conn); | |
138 | return sk; | |
139 | } | |
140 | ||
141 | static int sco_conn_del(struct hci_conn *hcon, int err) | |
142 | { | |
735cbc47 | 143 | struct sco_conn *conn = hcon->sco_data; |
1da177e4 LT |
144 | struct sock *sk; |
145 | ||
735cbc47 | 146 | if (!conn) |
1da177e4 LT |
147 | return 0; |
148 | ||
149 | BT_DBG("hcon %p conn %p, err %d", hcon, conn, err); | |
150 | ||
151 | /* Kill socket */ | |
735cbc47 AE |
152 | sk = sco_chan_get(conn); |
153 | if (sk) { | |
1da177e4 LT |
154 | bh_lock_sock(sk); |
155 | sco_sock_clear_timer(sk); | |
156 | sco_chan_del(sk, err); | |
157 | bh_unlock_sock(sk); | |
158 | sco_sock_kill(sk); | |
159 | } | |
160 | ||
161 | hcon->sco_data = NULL; | |
162 | kfree(conn); | |
163 | return 0; | |
164 | } | |
165 | ||
015b01cb MH |
166 | static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent) |
167 | { | |
168 | BT_DBG("conn %p", conn); | |
169 | ||
170 | sco_pi(sk)->conn = conn; | |
171 | conn->sk = sk; | |
172 | ||
173 | if (parent) | |
174 | bt_accept_enqueue(parent, sk); | |
175 | } | |
176 | ||
6039aa73 GP |
177 | static int sco_chan_add(struct sco_conn *conn, struct sock *sk, |
178 | struct sock *parent) | |
1da177e4 LT |
179 | { |
180 | int err = 0; | |
181 | ||
182 | sco_conn_lock(conn); | |
b9dbdbc1 | 183 | if (conn->sk) |
1da177e4 | 184 | err = -EBUSY; |
b9dbdbc1 | 185 | else |
1da177e4 | 186 | __sco_chan_add(conn, sk, parent); |
b9dbdbc1 | 187 | |
1da177e4 LT |
188 | sco_conn_unlock(conn); |
189 | return err; | |
190 | } | |
191 | ||
192 | static int sco_connect(struct sock *sk) | |
193 | { | |
1da177e4 LT |
194 | struct sco_conn *conn; |
195 | struct hci_conn *hcon; | |
196 | struct hci_dev *hdev; | |
b6a0dc82 | 197 | int err, type; |
1da177e4 | 198 | |
eea96364 | 199 | BT_DBG("%pMR -> %pMR", &sco_pi(sk)->src, &sco_pi(sk)->dst); |
1da177e4 | 200 | |
eea96364 | 201 | hdev = hci_get_route(&sco_pi(sk)->dst, &sco_pi(sk)->src); |
735cbc47 | 202 | if (!hdev) |
1da177e4 LT |
203 | return -EHOSTUNREACH; |
204 | ||
09fd0de5 | 205 | hci_dev_lock(hdev); |
1da177e4 | 206 | |
7cb127d5 MH |
207 | if (lmp_esco_capable(hdev) && !disable_esco) |
208 | type = ESCO_LINK; | |
209 | else | |
210 | type = SCO_LINK; | |
b6a0dc82 | 211 | |
79dc0087 FD |
212 | if (sco_pi(sk)->setting == BT_VOICE_TRANSPARENT && |
213 | (!lmp_transp_capable(hdev) || !lmp_esco_capable(hdev))) { | |
214 | err = -EOPNOTSUPP; | |
215 | goto done; | |
216 | } | |
217 | ||
eea96364 | 218 | hcon = hci_connect_sco(hdev, type, &sco_pi(sk)->dst, |
041987cf | 219 | sco_pi(sk)->setting); |
30e76272 VT |
220 | if (IS_ERR(hcon)) { |
221 | err = PTR_ERR(hcon); | |
1da177e4 | 222 | goto done; |
30e76272 | 223 | } |
1da177e4 | 224 | |
519e42b3 | 225 | conn = sco_conn_add(hcon); |
1da177e4 | 226 | if (!conn) { |
76a68ba0 | 227 | hci_conn_drop(hcon); |
30e76272 | 228 | err = -ENOMEM; |
1da177e4 LT |
229 | goto done; |
230 | } | |
231 | ||
232 | /* Update source addr of the socket */ | |
eea96364 | 233 | bacpy(&sco_pi(sk)->src, &hcon->src); |
1da177e4 LT |
234 | |
235 | err = sco_chan_add(conn, sk, NULL); | |
236 | if (err) | |
237 | goto done; | |
238 | ||
239 | if (hcon->state == BT_CONNECTED) { | |
240 | sco_sock_clear_timer(sk); | |
241 | sk->sk_state = BT_CONNECTED; | |
242 | } else { | |
243 | sk->sk_state = BT_CONNECT; | |
244 | sco_sock_set_timer(sk, sk->sk_sndtimeo); | |
245 | } | |
b6a0dc82 | 246 | |
1da177e4 | 247 | done: |
09fd0de5 | 248 | hci_dev_unlock(hdev); |
1da177e4 LT |
249 | hci_dev_put(hdev); |
250 | return err; | |
251 | } | |
252 | ||
6039aa73 | 253 | static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len) |
1da177e4 LT |
254 | { |
255 | struct sco_conn *conn = sco_pi(sk)->conn; | |
256 | struct sk_buff *skb; | |
088ce088 | 257 | int err; |
1da177e4 LT |
258 | |
259 | /* Check outgoing MTU */ | |
260 | if (len > conn->mtu) | |
261 | return -EINVAL; | |
262 | ||
263 | BT_DBG("sk %p len %d", sk, len); | |
264 | ||
088ce088 | 265 | skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); |
b9dbdbc1 | 266 | if (!skb) |
1da177e4 LT |
267 | return err; |
268 | ||
088ce088 | 269 | if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { |
b9dbdbc1 GP |
270 | kfree_skb(skb); |
271 | return -EFAULT; | |
1da177e4 LT |
272 | } |
273 | ||
0d861d8b | 274 | hci_send_sco(conn->hcon, skb); |
1da177e4 | 275 | |
088ce088 | 276 | return len; |
1da177e4 LT |
277 | } |
278 | ||
6039aa73 | 279 | static void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb) |
1da177e4 LT |
280 | { |
281 | struct sock *sk = sco_chan_get(conn); | |
282 | ||
283 | if (!sk) | |
284 | goto drop; | |
285 | ||
286 | BT_DBG("sk %p len %d", sk, skb->len); | |
287 | ||
288 | if (sk->sk_state != BT_CONNECTED) | |
289 | goto drop; | |
290 | ||
291 | if (!sock_queue_rcv_skb(sk, skb)) | |
292 | return; | |
293 | ||
294 | drop: | |
295 | kfree_skb(skb); | |
1da177e4 LT |
296 | } |
297 | ||
298 | /* -------- Socket interface ---------- */ | |
fb334059 | 299 | static struct sock *__sco_get_sock_listen_by_addr(bdaddr_t *ba) |
1da177e4 | 300 | { |
fb334059 MH |
301 | struct sock *sk; |
302 | ||
b67bfe0d | 303 | sk_for_each(sk, &sco_sk_list.head) { |
fb334059 MH |
304 | if (sk->sk_state != BT_LISTEN) |
305 | continue; | |
1da177e4 | 306 | |
eea96364 | 307 | if (!bacmp(&sco_pi(sk)->src, ba)) |
fb334059 MH |
308 | return sk; |
309 | } | |
310 | ||
311 | return NULL; | |
1da177e4 LT |
312 | } |
313 | ||
314 | /* Find socket listening on source bdaddr. | |
315 | * Returns closest match. | |
316 | */ | |
317 | static struct sock *sco_get_sock_listen(bdaddr_t *src) | |
318 | { | |
319 | struct sock *sk = NULL, *sk1 = NULL; | |
1da177e4 LT |
320 | |
321 | read_lock(&sco_sk_list.lock); | |
322 | ||
b67bfe0d | 323 | sk_for_each(sk, &sco_sk_list.head) { |
1da177e4 LT |
324 | if (sk->sk_state != BT_LISTEN) |
325 | continue; | |
326 | ||
327 | /* Exact match. */ | |
eea96364 | 328 | if (!bacmp(&sco_pi(sk)->src, src)) |
1da177e4 LT |
329 | break; |
330 | ||
331 | /* Closest match */ | |
eea96364 | 332 | if (!bacmp(&sco_pi(sk)->src, BDADDR_ANY)) |
1da177e4 LT |
333 | sk1 = sk; |
334 | } | |
335 | ||
336 | read_unlock(&sco_sk_list.lock); | |
337 | ||
b67bfe0d | 338 | return sk ? sk : sk1; |
1da177e4 LT |
339 | } |
340 | ||
341 | static void sco_sock_destruct(struct sock *sk) | |
342 | { | |
343 | BT_DBG("sk %p", sk); | |
344 | ||
345 | skb_queue_purge(&sk->sk_receive_queue); | |
346 | skb_queue_purge(&sk->sk_write_queue); | |
347 | } | |
348 | ||
349 | static void sco_sock_cleanup_listen(struct sock *parent) | |
350 | { | |
351 | struct sock *sk; | |
352 | ||
353 | BT_DBG("parent %p", parent); | |
354 | ||
355 | /* Close not yet accepted channels */ | |
356 | while ((sk = bt_accept_dequeue(parent, NULL))) { | |
357 | sco_sock_close(sk); | |
358 | sco_sock_kill(sk); | |
359 | } | |
360 | ||
361 | parent->sk_state = BT_CLOSED; | |
362 | sock_set_flag(parent, SOCK_ZAPPED); | |
363 | } | |
364 | ||
365 | /* Kill socket (only if zapped and orphan) | |
366 | * Must be called on unlocked socket. | |
367 | */ | |
368 | static void sco_sock_kill(struct sock *sk) | |
369 | { | |
370 | if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket) | |
371 | return; | |
372 | ||
373 | BT_DBG("sk %p state %d", sk, sk->sk_state); | |
374 | ||
375 | /* Kill poor orphan */ | |
376 | bt_sock_unlink(&sco_sk_list, sk); | |
377 | sock_set_flag(sk, SOCK_DEAD); | |
378 | sock_put(sk); | |
379 | } | |
380 | ||
fd0b3ff7 | 381 | static void __sco_sock_close(struct sock *sk) |
1da177e4 | 382 | { |
fd0b3ff7 | 383 | BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket); |
1da177e4 LT |
384 | |
385 | switch (sk->sk_state) { | |
386 | case BT_LISTEN: | |
387 | sco_sock_cleanup_listen(sk); | |
388 | break; | |
389 | ||
390 | case BT_CONNECTED: | |
391 | case BT_CONFIG: | |
b7e98b51 | 392 | if (sco_pi(sk)->conn->hcon) { |
4a77708b LAD |
393 | sk->sk_state = BT_DISCONN; |
394 | sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT); | |
76a68ba0 | 395 | hci_conn_drop(sco_pi(sk)->conn->hcon); |
4a77708b LAD |
396 | sco_pi(sk)->conn->hcon = NULL; |
397 | } else | |
398 | sco_chan_del(sk, ECONNRESET); | |
399 | break; | |
400 | ||
eb20ff9c | 401 | case BT_CONNECT2: |
1da177e4 LT |
402 | case BT_CONNECT: |
403 | case BT_DISCONN: | |
404 | sco_chan_del(sk, ECONNRESET); | |
405 | break; | |
406 | ||
407 | default: | |
408 | sock_set_flag(sk, SOCK_ZAPPED); | |
409 | break; | |
3ff50b79 | 410 | } |
fd0b3ff7 | 411 | } |
1da177e4 | 412 | |
fd0b3ff7 MH |
413 | /* Must be called on unlocked socket. */ |
414 | static void sco_sock_close(struct sock *sk) | |
415 | { | |
416 | sco_sock_clear_timer(sk); | |
417 | lock_sock(sk); | |
418 | __sco_sock_close(sk); | |
1da177e4 | 419 | release_sock(sk); |
1da177e4 LT |
420 | sco_sock_kill(sk); |
421 | } | |
422 | ||
423 | static void sco_sock_init(struct sock *sk, struct sock *parent) | |
424 | { | |
425 | BT_DBG("sk %p", sk); | |
426 | ||
6230c9b4 | 427 | if (parent) { |
1da177e4 | 428 | sk->sk_type = parent->sk_type; |
20714bfe | 429 | bt_sk(sk)->flags = bt_sk(parent)->flags; |
6230c9b4 PM |
430 | security_sk_clone(parent, sk); |
431 | } | |
1da177e4 LT |
432 | } |
433 | ||
434 | static struct proto sco_proto = { | |
435 | .name = "SCO", | |
436 | .owner = THIS_MODULE, | |
437 | .obj_size = sizeof(struct sco_pinfo) | |
438 | }; | |
439 | ||
1b8d7ae4 | 440 | static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio) |
1da177e4 LT |
441 | { |
442 | struct sock *sk; | |
443 | ||
6257ff21 | 444 | sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto); |
1da177e4 LT |
445 | if (!sk) |
446 | return NULL; | |
447 | ||
448 | sock_init_data(sock, sk); | |
449 | INIT_LIST_HEAD(&bt_sk(sk)->accept_q); | |
450 | ||
451 | sk->sk_destruct = sco_sock_destruct; | |
452 | sk->sk_sndtimeo = SCO_CONN_TIMEOUT; | |
453 | ||
454 | sock_reset_flag(sk, SOCK_ZAPPED); | |
455 | ||
456 | sk->sk_protocol = proto; | |
457 | sk->sk_state = BT_OPEN; | |
458 | ||
ad10b1a4 FD |
459 | sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT; |
460 | ||
b24b8a24 | 461 | setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk); |
1da177e4 LT |
462 | |
463 | bt_sock_link(&sco_sk_list, sk); | |
464 | return sk; | |
465 | } | |
466 | ||
3f378b68 EP |
467 | static int sco_sock_create(struct net *net, struct socket *sock, int protocol, |
468 | int kern) | |
1da177e4 LT |
469 | { |
470 | struct sock *sk; | |
471 | ||
472 | BT_DBG("sock %p", sock); | |
473 | ||
474 | sock->state = SS_UNCONNECTED; | |
475 | ||
476 | if (sock->type != SOCK_SEQPACKET) | |
477 | return -ESOCKTNOSUPPORT; | |
478 | ||
479 | sock->ops = &sco_sock_ops; | |
480 | ||
1b8d7ae4 | 481 | sk = sco_sock_alloc(net, sock, protocol, GFP_ATOMIC); |
74da626a | 482 | if (!sk) |
1da177e4 LT |
483 | return -ENOMEM; |
484 | ||
485 | sco_sock_init(sk, NULL); | |
486 | return 0; | |
487 | } | |
488 | ||
489 | static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) | |
490 | { | |
491 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
492 | struct sock *sk = sock->sk; | |
1da177e4 LT |
493 | int err = 0; |
494 | ||
6ed93dc6 | 495 | BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr); |
1da177e4 LT |
496 | |
497 | if (!addr || addr->sa_family != AF_BLUETOOTH) | |
498 | return -EINVAL; | |
499 | ||
500 | lock_sock(sk); | |
501 | ||
502 | if (sk->sk_state != BT_OPEN) { | |
503 | err = -EBADFD; | |
504 | goto done; | |
505 | } | |
506 | ||
8ed21f7e MH |
507 | if (sk->sk_type != SOCK_SEQPACKET) { |
508 | err = -EINVAL; | |
509 | goto done; | |
1da177e4 LT |
510 | } |
511 | ||
eea96364 | 512 | bacpy(&sco_pi(sk)->src, &sa->sco_bdaddr); |
8ed21f7e MH |
513 | |
514 | sk->sk_state = BT_BOUND; | |
1da177e4 LT |
515 | |
516 | done: | |
517 | release_sock(sk); | |
518 | return err; | |
519 | } | |
520 | ||
521 | static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags) | |
522 | { | |
523 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
524 | struct sock *sk = sock->sk; | |
92f185c8 | 525 | int err; |
1da177e4 LT |
526 | |
527 | BT_DBG("sk %p", sk); | |
528 | ||
6503d961 CG |
529 | if (alen < sizeof(struct sockaddr_sco) || |
530 | addr->sa_family != AF_BLUETOOTH) | |
1da177e4 LT |
531 | return -EINVAL; |
532 | ||
533 | if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) | |
534 | return -EBADFD; | |
535 | ||
536 | if (sk->sk_type != SOCK_SEQPACKET) | |
537 | return -EINVAL; | |
538 | ||
539 | lock_sock(sk); | |
540 | ||
541 | /* Set destination address and psm */ | |
eea96364 | 542 | bacpy(&sco_pi(sk)->dst, &sa->sco_bdaddr); |
1da177e4 | 543 | |
735cbc47 AE |
544 | err = sco_connect(sk); |
545 | if (err) | |
1da177e4 LT |
546 | goto done; |
547 | ||
8e87d142 | 548 | err = bt_sock_wait_state(sk, BT_CONNECTED, |
be7c2b99 | 549 | sock_sndtimeo(sk, flags & O_NONBLOCK)); |
1da177e4 LT |
550 | |
551 | done: | |
552 | release_sock(sk); | |
553 | return err; | |
554 | } | |
555 | ||
556 | static int sco_sock_listen(struct socket *sock, int backlog) | |
557 | { | |
558 | struct sock *sk = sock->sk; | |
eea96364 | 559 | bdaddr_t *src = &sco_pi(sk)->src; |
1da177e4 LT |
560 | int err = 0; |
561 | ||
562 | BT_DBG("sk %p backlog %d", sk, backlog); | |
563 | ||
564 | lock_sock(sk); | |
565 | ||
7d5d775a | 566 | if (sk->sk_state != BT_BOUND) { |
1da177e4 LT |
567 | err = -EBADFD; |
568 | goto done; | |
569 | } | |
570 | ||
7d5d775a MH |
571 | if (sk->sk_type != SOCK_SEQPACKET) { |
572 | err = -EINVAL; | |
573 | goto done; | |
574 | } | |
575 | ||
fb334059 MH |
576 | write_lock(&sco_sk_list.lock); |
577 | ||
578 | if (__sco_get_sock_listen_by_addr(src)) { | |
579 | err = -EADDRINUSE; | |
580 | goto unlock; | |
581 | } | |
582 | ||
1da177e4 LT |
583 | sk->sk_max_ack_backlog = backlog; |
584 | sk->sk_ack_backlog = 0; | |
fb334059 | 585 | |
1da177e4 LT |
586 | sk->sk_state = BT_LISTEN; |
587 | ||
fb334059 MH |
588 | unlock: |
589 | write_unlock(&sco_sk_list.lock); | |
590 | ||
1da177e4 LT |
591 | done: |
592 | release_sock(sk); | |
593 | return err; | |
594 | } | |
595 | ||
596 | static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags) | |
597 | { | |
598 | DECLARE_WAITQUEUE(wait, current); | |
599 | struct sock *sk = sock->sk, *ch; | |
600 | long timeo; | |
601 | int err = 0; | |
602 | ||
603 | lock_sock(sk); | |
604 | ||
1da177e4 LT |
605 | timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK); |
606 | ||
607 | BT_DBG("sk %p timeo %ld", sk, timeo); | |
608 | ||
609 | /* Wait for an incoming connection. (wake-one). */ | |
aa395145 | 610 | add_wait_queue_exclusive(sk_sleep(sk), &wait); |
552b0d3c | 611 | while (1) { |
1da177e4 | 612 | set_current_state(TASK_INTERRUPTIBLE); |
552b0d3c PH |
613 | |
614 | if (sk->sk_state != BT_LISTEN) { | |
615 | err = -EBADFD; | |
1da177e4 LT |
616 | break; |
617 | } | |
618 | ||
552b0d3c PH |
619 | ch = bt_accept_dequeue(sk, newsock); |
620 | if (ch) | |
621 | break; | |
1da177e4 | 622 | |
552b0d3c PH |
623 | if (!timeo) { |
624 | err = -EAGAIN; | |
1da177e4 LT |
625 | break; |
626 | } | |
627 | ||
628 | if (signal_pending(current)) { | |
629 | err = sock_intr_errno(timeo); | |
630 | break; | |
631 | } | |
552b0d3c PH |
632 | |
633 | release_sock(sk); | |
634 | timeo = schedule_timeout(timeo); | |
635 | lock_sock(sk); | |
1da177e4 | 636 | } |
552b0d3c | 637 | __set_current_state(TASK_RUNNING); |
aa395145 | 638 | remove_wait_queue(sk_sleep(sk), &wait); |
1da177e4 LT |
639 | |
640 | if (err) | |
641 | goto done; | |
642 | ||
643 | newsock->state = SS_CONNECTED; | |
644 | ||
645 | BT_DBG("new socket %p", ch); | |
646 | ||
647 | done: | |
648 | release_sock(sk); | |
649 | return err; | |
650 | } | |
651 | ||
652 | static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer) | |
653 | { | |
654 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
655 | struct sock *sk = sock->sk; | |
656 | ||
657 | BT_DBG("sock %p, sk %p", sock, sk); | |
658 | ||
659 | addr->sa_family = AF_BLUETOOTH; | |
660 | *len = sizeof(struct sockaddr_sco); | |
661 | ||
662 | if (peer) | |
eea96364 | 663 | bacpy(&sa->sco_bdaddr, &sco_pi(sk)->dst); |
1da177e4 | 664 | else |
eea96364 | 665 | bacpy(&sa->sco_bdaddr, &sco_pi(sk)->src); |
1da177e4 LT |
666 | |
667 | return 0; | |
668 | } | |
669 | ||
8e87d142 | 670 | static int sco_sock_sendmsg(struct kiocb *iocb, struct socket *sock, |
1da177e4 LT |
671 | struct msghdr *msg, size_t len) |
672 | { | |
673 | struct sock *sk = sock->sk; | |
b9dbdbc1 | 674 | int err; |
1da177e4 LT |
675 | |
676 | BT_DBG("sock %p, sk %p", sock, sk); | |
677 | ||
c1cbe4b7 BL |
678 | err = sock_error(sk); |
679 | if (err) | |
680 | return err; | |
1da177e4 LT |
681 | |
682 | if (msg->msg_flags & MSG_OOB) | |
683 | return -EOPNOTSUPP; | |
684 | ||
685 | lock_sock(sk); | |
686 | ||
687 | if (sk->sk_state == BT_CONNECTED) | |
688 | err = sco_send_frame(sk, msg, len); | |
689 | else | |
690 | err = -ENOTCONN; | |
691 | ||
692 | release_sock(sk); | |
693 | return err; | |
694 | } | |
695 | ||
2f69a82a | 696 | static void sco_conn_defer_accept(struct hci_conn *conn, u16 setting) |
fa5513be FD |
697 | { |
698 | struct hci_dev *hdev = conn->hdev; | |
699 | ||
700 | BT_DBG("conn %p", conn); | |
701 | ||
702 | conn->state = BT_CONFIG; | |
703 | ||
704 | if (!lmp_esco_capable(hdev)) { | |
705 | struct hci_cp_accept_conn_req cp; | |
706 | ||
707 | bacpy(&cp.bdaddr, &conn->dst); | |
33f24048 | 708 | cp.role = 0x00; /* Ignored */ |
fa5513be FD |
709 | |
710 | hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp); | |
711 | } else { | |
712 | struct hci_cp_accept_sync_conn_req cp; | |
713 | ||
714 | bacpy(&cp.bdaddr, &conn->dst); | |
715 | cp.pkt_type = cpu_to_le16(conn->pkt_type); | |
716 | ||
dcf4adbf JP |
717 | cp.tx_bandwidth = cpu_to_le32(0x00001f40); |
718 | cp.rx_bandwidth = cpu_to_le32(0x00001f40); | |
2f69a82a FD |
719 | cp.content_format = cpu_to_le16(setting); |
720 | ||
721 | switch (setting & SCO_AIRMODE_MASK) { | |
722 | case SCO_AIRMODE_TRANSP: | |
723 | if (conn->pkt_type & ESCO_2EV3) | |
dcf4adbf | 724 | cp.max_latency = cpu_to_le16(0x0008); |
2f69a82a | 725 | else |
dcf4adbf | 726 | cp.max_latency = cpu_to_le16(0x000D); |
2f69a82a FD |
727 | cp.retrans_effort = 0x02; |
728 | break; | |
729 | case SCO_AIRMODE_CVSD: | |
dcf4adbf | 730 | cp.max_latency = cpu_to_le16(0xffff); |
2f69a82a FD |
731 | cp.retrans_effort = 0xff; |
732 | break; | |
733 | } | |
fa5513be FD |
734 | |
735 | hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, | |
736 | sizeof(cp), &cp); | |
737 | } | |
738 | } | |
739 | ||
20714bfe FD |
740 | static int sco_sock_recvmsg(struct kiocb *iocb, struct socket *sock, |
741 | struct msghdr *msg, size_t len, int flags) | |
742 | { | |
743 | struct sock *sk = sock->sk; | |
744 | struct sco_pinfo *pi = sco_pi(sk); | |
745 | ||
746 | lock_sock(sk); | |
747 | ||
748 | if (sk->sk_state == BT_CONNECT2 && | |
749 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { | |
2f69a82a | 750 | sco_conn_defer_accept(pi->conn->hcon, pi->setting); |
20714bfe FD |
751 | sk->sk_state = BT_CONFIG; |
752 | ||
753 | release_sock(sk); | |
754 | return 0; | |
755 | } | |
756 | ||
757 | release_sock(sk); | |
758 | ||
759 | return bt_sock_recvmsg(iocb, sock, msg, len, flags); | |
760 | } | |
761 | ||
b7058842 | 762 | static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) |
1da177e4 LT |
763 | { |
764 | struct sock *sk = sock->sk; | |
ad10b1a4 FD |
765 | int len, err = 0; |
766 | struct bt_voice voice; | |
b96e9c67 | 767 | u32 opt; |
1da177e4 LT |
768 | |
769 | BT_DBG("sk %p", sk); | |
770 | ||
771 | lock_sock(sk); | |
772 | ||
773 | switch (optname) { | |
b96e9c67 FD |
774 | |
775 | case BT_DEFER_SETUP: | |
776 | if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) { | |
777 | err = -EINVAL; | |
778 | break; | |
779 | } | |
780 | ||
781 | if (get_user(opt, (u32 __user *) optval)) { | |
782 | err = -EFAULT; | |
783 | break; | |
784 | } | |
785 | ||
786 | if (opt) | |
787 | set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); | |
788 | else | |
789 | clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); | |
790 | break; | |
791 | ||
ad10b1a4 FD |
792 | case BT_VOICE: |
793 | if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND && | |
794 | sk->sk_state != BT_CONNECT2) { | |
795 | err = -EINVAL; | |
796 | break; | |
797 | } | |
798 | ||
799 | voice.setting = sco_pi(sk)->setting; | |
800 | ||
801 | len = min_t(unsigned int, sizeof(voice), optlen); | |
802 | if (copy_from_user((char *) &voice, optval, len)) { | |
803 | err = -EFAULT; | |
804 | break; | |
805 | } | |
806 | ||
807 | /* Explicitly check for these values */ | |
808 | if (voice.setting != BT_VOICE_TRANSPARENT && | |
809 | voice.setting != BT_VOICE_CVSD_16BIT) { | |
810 | err = -EINVAL; | |
811 | break; | |
812 | } | |
813 | ||
814 | sco_pi(sk)->setting = voice.setting; | |
815 | break; | |
816 | ||
1da177e4 LT |
817 | default: |
818 | err = -ENOPROTOOPT; | |
819 | break; | |
820 | } | |
821 | ||
822 | release_sock(sk); | |
823 | return err; | |
824 | } | |
825 | ||
d58daf42 | 826 | static int sco_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen) |
1da177e4 LT |
827 | { |
828 | struct sock *sk = sock->sk; | |
829 | struct sco_options opts; | |
830 | struct sco_conninfo cinfo; | |
8e87d142 | 831 | int len, err = 0; |
1da177e4 LT |
832 | |
833 | BT_DBG("sk %p", sk); | |
834 | ||
835 | if (get_user(len, optlen)) | |
836 | return -EFAULT; | |
837 | ||
838 | lock_sock(sk); | |
839 | ||
840 | switch (optname) { | |
841 | case SCO_OPTIONS: | |
9d225d22 JH |
842 | if (sk->sk_state != BT_CONNECTED && |
843 | !(sk->sk_state == BT_CONNECT2 && | |
844 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) { | |
1da177e4 LT |
845 | err = -ENOTCONN; |
846 | break; | |
847 | } | |
848 | ||
849 | opts.mtu = sco_pi(sk)->conn->mtu; | |
850 | ||
851 | BT_DBG("mtu %d", opts.mtu); | |
852 | ||
853 | len = min_t(unsigned int, len, sizeof(opts)); | |
854 | if (copy_to_user(optval, (char *)&opts, len)) | |
855 | err = -EFAULT; | |
856 | ||
857 | break; | |
858 | ||
859 | case SCO_CONNINFO: | |
9d225d22 JH |
860 | if (sk->sk_state != BT_CONNECTED && |
861 | !(sk->sk_state == BT_CONNECT2 && | |
862 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) { | |
1da177e4 LT |
863 | err = -ENOTCONN; |
864 | break; | |
865 | } | |
866 | ||
c4c896e1 | 867 | memset(&cinfo, 0, sizeof(cinfo)); |
1da177e4 LT |
868 | cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle; |
869 | memcpy(cinfo.dev_class, sco_pi(sk)->conn->hcon->dev_class, 3); | |
870 | ||
871 | len = min_t(unsigned int, len, sizeof(cinfo)); | |
872 | if (copy_to_user(optval, (char *)&cinfo, len)) | |
873 | err = -EFAULT; | |
874 | ||
875 | break; | |
876 | ||
877 | default: | |
878 | err = -ENOPROTOOPT; | |
879 | break; | |
880 | } | |
881 | ||
882 | release_sock(sk); | |
883 | return err; | |
884 | } | |
885 | ||
d58daf42 MH |
886 | static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen) |
887 | { | |
888 | struct sock *sk = sock->sk; | |
889 | int len, err = 0; | |
ad10b1a4 | 890 | struct bt_voice voice; |
d58daf42 MH |
891 | |
892 | BT_DBG("sk %p", sk); | |
893 | ||
894 | if (level == SOL_SCO) | |
895 | return sco_sock_getsockopt_old(sock, optname, optval, optlen); | |
896 | ||
897 | if (get_user(len, optlen)) | |
898 | return -EFAULT; | |
899 | ||
900 | lock_sock(sk); | |
901 | ||
902 | switch (optname) { | |
b96e9c67 FD |
903 | |
904 | case BT_DEFER_SETUP: | |
905 | if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) { | |
906 | err = -EINVAL; | |
907 | break; | |
908 | } | |
909 | ||
910 | if (put_user(test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags), | |
911 | (u32 __user *) optval)) | |
912 | err = -EFAULT; | |
913 | ||
914 | break; | |
915 | ||
ad10b1a4 FD |
916 | case BT_VOICE: |
917 | voice.setting = sco_pi(sk)->setting; | |
918 | ||
919 | len = min_t(unsigned int, len, sizeof(voice)); | |
920 | if (copy_to_user(optval, (char *)&voice, len)) | |
921 | err = -EFAULT; | |
922 | ||
923 | break; | |
924 | ||
d58daf42 MH |
925 | default: |
926 | err = -ENOPROTOOPT; | |
927 | break; | |
928 | } | |
929 | ||
930 | release_sock(sk); | |
931 | return err; | |
932 | } | |
933 | ||
fd0b3ff7 MH |
934 | static int sco_sock_shutdown(struct socket *sock, int how) |
935 | { | |
936 | struct sock *sk = sock->sk; | |
937 | int err = 0; | |
938 | ||
939 | BT_DBG("sock %p, sk %p", sock, sk); | |
940 | ||
941 | if (!sk) | |
942 | return 0; | |
943 | ||
944 | lock_sock(sk); | |
945 | if (!sk->sk_shutdown) { | |
946 | sk->sk_shutdown = SHUTDOWN_MASK; | |
947 | sco_sock_clear_timer(sk); | |
948 | __sco_sock_close(sk); | |
949 | ||
950 | if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) | |
951 | err = bt_sock_wait_state(sk, BT_CLOSED, | |
be7c2b99 | 952 | sk->sk_lingertime); |
fd0b3ff7 MH |
953 | } |
954 | release_sock(sk); | |
955 | return err; | |
956 | } | |
957 | ||
1da177e4 LT |
958 | static int sco_sock_release(struct socket *sock) |
959 | { | |
960 | struct sock *sk = sock->sk; | |
961 | int err = 0; | |
962 | ||
963 | BT_DBG("sock %p, sk %p", sock, sk); | |
964 | ||
965 | if (!sk) | |
966 | return 0; | |
967 | ||
968 | sco_sock_close(sk); | |
969 | ||
970 | if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) { | |
971 | lock_sock(sk); | |
972 | err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); | |
973 | release_sock(sk); | |
974 | } | |
975 | ||
976 | sock_orphan(sk); | |
977 | sco_sock_kill(sk); | |
978 | return err; | |
979 | } | |
980 | ||
8e87d142 | 981 | /* Delete channel. |
1da177e4 LT |
982 | * Must be called on the locked socket. */ |
983 | static void sco_chan_del(struct sock *sk, int err) | |
984 | { | |
985 | struct sco_conn *conn; | |
986 | ||
987 | conn = sco_pi(sk)->conn; | |
988 | ||
989 | BT_DBG("sk %p, conn %p, err %d", sk, conn, err); | |
990 | ||
0b27a4b9 GP |
991 | if (conn) { |
992 | sco_conn_lock(conn); | |
993 | conn->sk = NULL; | |
994 | sco_pi(sk)->conn = NULL; | |
995 | sco_conn_unlock(conn); | |
996 | ||
997 | if (conn->hcon) | |
76a68ba0 | 998 | hci_conn_drop(conn->hcon); |
0b27a4b9 GP |
999 | } |
1000 | ||
1da177e4 LT |
1001 | sk->sk_state = BT_CLOSED; |
1002 | sk->sk_err = err; | |
1003 | sk->sk_state_change(sk); | |
1004 | ||
1005 | sock_set_flag(sk, SOCK_ZAPPED); | |
1006 | } | |
1007 | ||
1008 | static void sco_conn_ready(struct sco_conn *conn) | |
1009 | { | |
735cbc47 AE |
1010 | struct sock *parent; |
1011 | struct sock *sk = conn->sk; | |
1da177e4 LT |
1012 | |
1013 | BT_DBG("conn %p", conn); | |
1014 | ||
735cbc47 | 1015 | if (sk) { |
1da177e4 LT |
1016 | sco_sock_clear_timer(sk); |
1017 | bh_lock_sock(sk); | |
1018 | sk->sk_state = BT_CONNECTED; | |
1019 | sk->sk_state_change(sk); | |
1020 | bh_unlock_sock(sk); | |
1021 | } else { | |
40528088 AG |
1022 | sco_conn_lock(conn); |
1023 | ||
041987cf | 1024 | parent = sco_get_sock_listen(&conn->hcon->src); |
40528088 AG |
1025 | if (!parent) { |
1026 | sco_conn_unlock(conn); | |
1027 | return; | |
1028 | } | |
1da177e4 LT |
1029 | |
1030 | bh_lock_sock(parent); | |
1031 | ||
b9dbdbc1 | 1032 | sk = sco_sock_alloc(sock_net(parent), NULL, |
be7c2b99 | 1033 | BTPROTO_SCO, GFP_ATOMIC); |
1da177e4 LT |
1034 | if (!sk) { |
1035 | bh_unlock_sock(parent); | |
40528088 AG |
1036 | sco_conn_unlock(conn); |
1037 | return; | |
1da177e4 LT |
1038 | } |
1039 | ||
1040 | sco_sock_init(sk, parent); | |
1041 | ||
eea96364 MH |
1042 | bacpy(&sco_pi(sk)->src, &conn->hcon->src); |
1043 | bacpy(&sco_pi(sk)->dst, &conn->hcon->dst); | |
1da177e4 LT |
1044 | |
1045 | hci_conn_hold(conn->hcon); | |
1046 | __sco_chan_add(conn, sk, parent); | |
1047 | ||
20714bfe FD |
1048 | if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags)) |
1049 | sk->sk_state = BT_CONNECT2; | |
1050 | else | |
1051 | sk->sk_state = BT_CONNECTED; | |
1da177e4 LT |
1052 | |
1053 | /* Wake up parent */ | |
676d2369 | 1054 | parent->sk_data_ready(parent); |
1da177e4 LT |
1055 | |
1056 | bh_unlock_sock(parent); | |
1da177e4 | 1057 | |
40528088 AG |
1058 | sco_conn_unlock(conn); |
1059 | } | |
1da177e4 LT |
1060 | } |
1061 | ||
1062 | /* ----- SCO interface with lower layer (HCI) ----- */ | |
20714bfe | 1063 | int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags) |
1da177e4 | 1064 | { |
fc5fef61 | 1065 | struct sock *sk; |
71aeeaa1 MH |
1066 | int lm = 0; |
1067 | ||
6ed93dc6 | 1068 | BT_DBG("hdev %s, bdaddr %pMR", hdev->name, bdaddr); |
1da177e4 | 1069 | |
71aeeaa1 MH |
1070 | /* Find listening sockets */ |
1071 | read_lock(&sco_sk_list.lock); | |
b67bfe0d | 1072 | sk_for_each(sk, &sco_sk_list.head) { |
71aeeaa1 MH |
1073 | if (sk->sk_state != BT_LISTEN) |
1074 | continue; | |
1075 | ||
eea96364 MH |
1076 | if (!bacmp(&sco_pi(sk)->src, &hdev->bdaddr) || |
1077 | !bacmp(&sco_pi(sk)->src, BDADDR_ANY)) { | |
71aeeaa1 | 1078 | lm |= HCI_LM_ACCEPT; |
20714bfe FD |
1079 | |
1080 | if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) | |
1081 | *flags |= HCI_PROTO_DEFER; | |
71aeeaa1 MH |
1082 | break; |
1083 | } | |
1084 | } | |
1085 | read_unlock(&sco_sk_list.lock); | |
1086 | ||
1087 | return lm; | |
1da177e4 LT |
1088 | } |
1089 | ||
9e664631 | 1090 | void sco_connect_cfm(struct hci_conn *hcon, __u8 status) |
1da177e4 | 1091 | { |
6ed93dc6 | 1092 | BT_DBG("hcon %p bdaddr %pMR status %d", hcon, &hcon->dst, status); |
1da177e4 LT |
1093 | if (!status) { |
1094 | struct sco_conn *conn; | |
1095 | ||
519e42b3 | 1096 | conn = sco_conn_add(hcon); |
1da177e4 LT |
1097 | if (conn) |
1098 | sco_conn_ready(conn); | |
8e87d142 | 1099 | } else |
e175072f | 1100 | sco_conn_del(hcon, bt_to_errno(status)); |
1da177e4 LT |
1101 | } |
1102 | ||
9e664631 | 1103 | void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason) |
1da177e4 LT |
1104 | { |
1105 | BT_DBG("hcon %p reason %d", hcon, reason); | |
1106 | ||
e175072f | 1107 | sco_conn_del(hcon, bt_to_errno(reason)); |
1da177e4 LT |
1108 | } |
1109 | ||
686ebf28 | 1110 | int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) |
1da177e4 LT |
1111 | { |
1112 | struct sco_conn *conn = hcon->sco_data; | |
1113 | ||
1114 | if (!conn) | |
1115 | goto drop; | |
1116 | ||
1117 | BT_DBG("conn %p len %d", conn, skb->len); | |
1118 | ||
1119 | if (skb->len) { | |
1120 | sco_recv_frame(conn, skb); | |
1121 | return 0; | |
1122 | } | |
1123 | ||
1124 | drop: | |
8e87d142 | 1125 | kfree_skb(skb); |
1da177e4 LT |
1126 | return 0; |
1127 | } | |
1128 | ||
aef7d97c | 1129 | static int sco_debugfs_show(struct seq_file *f, void *p) |
1da177e4 LT |
1130 | { |
1131 | struct sock *sk; | |
1da177e4 | 1132 | |
ee65d19e | 1133 | read_lock(&sco_sk_list.lock); |
1da177e4 | 1134 | |
b67bfe0d | 1135 | sk_for_each(sk, &sco_sk_list.head) { |
eea96364 MH |
1136 | seq_printf(f, "%pMR %pMR %d\n", &sco_pi(sk)->src, |
1137 | &sco_pi(sk)->dst, sk->sk_state); | |
be9d1227 | 1138 | } |
1da177e4 | 1139 | |
ee65d19e | 1140 | read_unlock(&sco_sk_list.lock); |
1da177e4 | 1141 | |
aef7d97c | 1142 | return 0; |
1da177e4 LT |
1143 | } |
1144 | ||
aef7d97c MH |
1145 | static int sco_debugfs_open(struct inode *inode, struct file *file) |
1146 | { | |
1147 | return single_open(file, sco_debugfs_show, inode->i_private); | |
1148 | } | |
1149 | ||
1150 | static const struct file_operations sco_debugfs_fops = { | |
1151 | .open = sco_debugfs_open, | |
1152 | .read = seq_read, | |
1153 | .llseek = seq_lseek, | |
1154 | .release = single_release, | |
1155 | }; | |
1156 | ||
1157 | static struct dentry *sco_debugfs; | |
1da177e4 | 1158 | |
90ddc4f0 | 1159 | static const struct proto_ops sco_sock_ops = { |
1da177e4 LT |
1160 | .family = PF_BLUETOOTH, |
1161 | .owner = THIS_MODULE, | |
1162 | .release = sco_sock_release, | |
1163 | .bind = sco_sock_bind, | |
1164 | .connect = sco_sock_connect, | |
1165 | .listen = sco_sock_listen, | |
1166 | .accept = sco_sock_accept, | |
1167 | .getname = sco_sock_getname, | |
1168 | .sendmsg = sco_sock_sendmsg, | |
20714bfe | 1169 | .recvmsg = sco_sock_recvmsg, |
1da177e4 | 1170 | .poll = bt_sock_poll, |
3241ad82 | 1171 | .ioctl = bt_sock_ioctl, |
1da177e4 LT |
1172 | .mmap = sock_no_mmap, |
1173 | .socketpair = sock_no_socketpair, | |
fd0b3ff7 | 1174 | .shutdown = sco_sock_shutdown, |
1da177e4 LT |
1175 | .setsockopt = sco_sock_setsockopt, |
1176 | .getsockopt = sco_sock_getsockopt | |
1177 | }; | |
1178 | ||
ec1b4cf7 | 1179 | static const struct net_proto_family sco_sock_family_ops = { |
1da177e4 LT |
1180 | .family = PF_BLUETOOTH, |
1181 | .owner = THIS_MODULE, | |
1182 | .create = sco_sock_create, | |
1183 | }; | |
1184 | ||
64274518 | 1185 | int __init sco_init(void) |
1da177e4 LT |
1186 | { |
1187 | int err; | |
1188 | ||
1189 | err = proto_register(&sco_proto, 0); | |
1190 | if (err < 0) | |
1191 | return err; | |
1192 | ||
1193 | err = bt_sock_register(BTPROTO_SCO, &sco_sock_family_ops); | |
1194 | if (err < 0) { | |
1195 | BT_ERR("SCO socket registration failed"); | |
1196 | goto error; | |
1197 | } | |
1198 | ||
b0316615 | 1199 | err = bt_procfs_init(&init_net, "sco", &sco_sk_list, NULL); |
de9b9212 MY |
1200 | if (err < 0) { |
1201 | BT_ERR("Failed to create SCO proc file"); | |
1202 | bt_sock_unregister(BTPROTO_SCO); | |
1203 | goto error; | |
1204 | } | |
1205 | ||
1da177e4 LT |
1206 | BT_INFO("SCO socket layer initialized"); |
1207 | ||
1120e4bf MH |
1208 | if (IS_ERR_OR_NULL(bt_debugfs)) |
1209 | return 0; | |
1210 | ||
1211 | sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs, | |
1212 | NULL, &sco_debugfs_fops); | |
1213 | ||
1da177e4 LT |
1214 | return 0; |
1215 | ||
1216 | error: | |
1217 | proto_unregister(&sco_proto); | |
1218 | return err; | |
1219 | } | |
1220 | ||
64274518 | 1221 | void __exit sco_exit(void) |
1da177e4 | 1222 | { |
de9b9212 MY |
1223 | bt_procfs_cleanup(&init_net, "sco"); |
1224 | ||
aef7d97c | 1225 | debugfs_remove(sco_debugfs); |
1da177e4 | 1226 | |
5e9d7f86 | 1227 | bt_sock_unregister(BTPROTO_SCO); |
1da177e4 | 1228 | |
1da177e4 LT |
1229 | proto_unregister(&sco_proto); |
1230 | } | |
1231 | ||
7cb127d5 MH |
1232 | module_param(disable_esco, bool, 0644); |
1233 | MODULE_PARM_DESC(disable_esco, "Disable eSCO connection creation"); |