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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 | ||
1da177e4 LT |
95 | if (hdev->sco_mtu > 0) |
96 | conn->mtu = hdev->sco_mtu; | |
97 | else | |
98 | conn->mtu = 60; | |
99 | ||
100 | BT_DBG("hcon %p conn %p", hcon, conn); | |
25ea6db0 | 101 | |
1da177e4 LT |
102 | return conn; |
103 | } | |
104 | ||
6039aa73 | 105 | static struct sock *sco_chan_get(struct sco_conn *conn) |
1da177e4 LT |
106 | { |
107 | struct sock *sk = NULL; | |
108 | sco_conn_lock(conn); | |
109 | sk = conn->sk; | |
110 | sco_conn_unlock(conn); | |
111 | return sk; | |
112 | } | |
113 | ||
114 | static int sco_conn_del(struct hci_conn *hcon, int err) | |
115 | { | |
735cbc47 | 116 | struct sco_conn *conn = hcon->sco_data; |
1da177e4 LT |
117 | struct sock *sk; |
118 | ||
735cbc47 | 119 | if (!conn) |
1da177e4 LT |
120 | return 0; |
121 | ||
122 | BT_DBG("hcon %p conn %p, err %d", hcon, conn, err); | |
123 | ||
124 | /* Kill socket */ | |
735cbc47 AE |
125 | sk = sco_chan_get(conn); |
126 | if (sk) { | |
1da177e4 LT |
127 | bh_lock_sock(sk); |
128 | sco_sock_clear_timer(sk); | |
129 | sco_chan_del(sk, err); | |
130 | bh_unlock_sock(sk); | |
131 | sco_sock_kill(sk); | |
132 | } | |
133 | ||
134 | hcon->sco_data = NULL; | |
135 | kfree(conn); | |
136 | return 0; | |
137 | } | |
138 | ||
6039aa73 GP |
139 | static int sco_chan_add(struct sco_conn *conn, struct sock *sk, |
140 | struct sock *parent) | |
1da177e4 LT |
141 | { |
142 | int err = 0; | |
143 | ||
144 | sco_conn_lock(conn); | |
b9dbdbc1 | 145 | if (conn->sk) |
1da177e4 | 146 | err = -EBUSY; |
b9dbdbc1 | 147 | else |
1da177e4 | 148 | __sco_chan_add(conn, sk, parent); |
b9dbdbc1 | 149 | |
1da177e4 LT |
150 | sco_conn_unlock(conn); |
151 | return err; | |
152 | } | |
153 | ||
154 | static int sco_connect(struct sock *sk) | |
155 | { | |
1da177e4 LT |
156 | struct sco_conn *conn; |
157 | struct hci_conn *hcon; | |
158 | struct hci_dev *hdev; | |
b6a0dc82 | 159 | int err, type; |
1da177e4 | 160 | |
eea96364 | 161 | BT_DBG("%pMR -> %pMR", &sco_pi(sk)->src, &sco_pi(sk)->dst); |
1da177e4 | 162 | |
eea96364 | 163 | hdev = hci_get_route(&sco_pi(sk)->dst, &sco_pi(sk)->src); |
735cbc47 | 164 | if (!hdev) |
1da177e4 LT |
165 | return -EHOSTUNREACH; |
166 | ||
09fd0de5 | 167 | hci_dev_lock(hdev); |
1da177e4 | 168 | |
7cb127d5 MH |
169 | if (lmp_esco_capable(hdev) && !disable_esco) |
170 | type = ESCO_LINK; | |
171 | else | |
172 | type = SCO_LINK; | |
b6a0dc82 | 173 | |
79dc0087 FD |
174 | if (sco_pi(sk)->setting == BT_VOICE_TRANSPARENT && |
175 | (!lmp_transp_capable(hdev) || !lmp_esco_capable(hdev))) { | |
176 | err = -EOPNOTSUPP; | |
177 | goto done; | |
178 | } | |
179 | ||
eea96364 | 180 | hcon = hci_connect_sco(hdev, type, &sco_pi(sk)->dst, |
041987cf | 181 | sco_pi(sk)->setting); |
30e76272 VT |
182 | if (IS_ERR(hcon)) { |
183 | err = PTR_ERR(hcon); | |
1da177e4 | 184 | goto done; |
30e76272 | 185 | } |
1da177e4 | 186 | |
519e42b3 | 187 | conn = sco_conn_add(hcon); |
1da177e4 | 188 | if (!conn) { |
76a68ba0 | 189 | hci_conn_drop(hcon); |
30e76272 | 190 | err = -ENOMEM; |
1da177e4 LT |
191 | goto done; |
192 | } | |
193 | ||
194 | /* Update source addr of the socket */ | |
eea96364 | 195 | bacpy(&sco_pi(sk)->src, &hcon->src); |
1da177e4 LT |
196 | |
197 | err = sco_chan_add(conn, sk, NULL); | |
198 | if (err) | |
199 | goto done; | |
200 | ||
201 | if (hcon->state == BT_CONNECTED) { | |
202 | sco_sock_clear_timer(sk); | |
203 | sk->sk_state = BT_CONNECTED; | |
204 | } else { | |
205 | sk->sk_state = BT_CONNECT; | |
206 | sco_sock_set_timer(sk, sk->sk_sndtimeo); | |
207 | } | |
b6a0dc82 | 208 | |
1da177e4 | 209 | done: |
09fd0de5 | 210 | hci_dev_unlock(hdev); |
1da177e4 LT |
211 | hci_dev_put(hdev); |
212 | return err; | |
213 | } | |
214 | ||
6039aa73 | 215 | static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len) |
1da177e4 LT |
216 | { |
217 | struct sco_conn *conn = sco_pi(sk)->conn; | |
218 | struct sk_buff *skb; | |
088ce088 | 219 | int err; |
1da177e4 LT |
220 | |
221 | /* Check outgoing MTU */ | |
222 | if (len > conn->mtu) | |
223 | return -EINVAL; | |
224 | ||
225 | BT_DBG("sk %p len %d", sk, len); | |
226 | ||
088ce088 | 227 | skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); |
b9dbdbc1 | 228 | if (!skb) |
1da177e4 LT |
229 | return err; |
230 | ||
088ce088 | 231 | if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { |
b9dbdbc1 GP |
232 | kfree_skb(skb); |
233 | return -EFAULT; | |
1da177e4 LT |
234 | } |
235 | ||
0d861d8b | 236 | hci_send_sco(conn->hcon, skb); |
1da177e4 | 237 | |
088ce088 | 238 | return len; |
1da177e4 LT |
239 | } |
240 | ||
6039aa73 | 241 | static void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb) |
1da177e4 LT |
242 | { |
243 | struct sock *sk = sco_chan_get(conn); | |
244 | ||
245 | if (!sk) | |
246 | goto drop; | |
247 | ||
248 | BT_DBG("sk %p len %d", sk, skb->len); | |
249 | ||
250 | if (sk->sk_state != BT_CONNECTED) | |
251 | goto drop; | |
252 | ||
253 | if (!sock_queue_rcv_skb(sk, skb)) | |
254 | return; | |
255 | ||
256 | drop: | |
257 | kfree_skb(skb); | |
1da177e4 LT |
258 | } |
259 | ||
260 | /* -------- Socket interface ---------- */ | |
fb334059 | 261 | static struct sock *__sco_get_sock_listen_by_addr(bdaddr_t *ba) |
1da177e4 | 262 | { |
fb334059 MH |
263 | struct sock *sk; |
264 | ||
b67bfe0d | 265 | sk_for_each(sk, &sco_sk_list.head) { |
fb334059 MH |
266 | if (sk->sk_state != BT_LISTEN) |
267 | continue; | |
1da177e4 | 268 | |
eea96364 | 269 | if (!bacmp(&sco_pi(sk)->src, ba)) |
fb334059 MH |
270 | return sk; |
271 | } | |
272 | ||
273 | return NULL; | |
1da177e4 LT |
274 | } |
275 | ||
276 | /* Find socket listening on source bdaddr. | |
277 | * Returns closest match. | |
278 | */ | |
279 | static struct sock *sco_get_sock_listen(bdaddr_t *src) | |
280 | { | |
281 | struct sock *sk = NULL, *sk1 = NULL; | |
1da177e4 LT |
282 | |
283 | read_lock(&sco_sk_list.lock); | |
284 | ||
b67bfe0d | 285 | sk_for_each(sk, &sco_sk_list.head) { |
1da177e4 LT |
286 | if (sk->sk_state != BT_LISTEN) |
287 | continue; | |
288 | ||
289 | /* Exact match. */ | |
eea96364 | 290 | if (!bacmp(&sco_pi(sk)->src, src)) |
1da177e4 LT |
291 | break; |
292 | ||
293 | /* Closest match */ | |
eea96364 | 294 | if (!bacmp(&sco_pi(sk)->src, BDADDR_ANY)) |
1da177e4 LT |
295 | sk1 = sk; |
296 | } | |
297 | ||
298 | read_unlock(&sco_sk_list.lock); | |
299 | ||
b67bfe0d | 300 | return sk ? sk : sk1; |
1da177e4 LT |
301 | } |
302 | ||
303 | static void sco_sock_destruct(struct sock *sk) | |
304 | { | |
305 | BT_DBG("sk %p", sk); | |
306 | ||
307 | skb_queue_purge(&sk->sk_receive_queue); | |
308 | skb_queue_purge(&sk->sk_write_queue); | |
309 | } | |
310 | ||
311 | static void sco_sock_cleanup_listen(struct sock *parent) | |
312 | { | |
313 | struct sock *sk; | |
314 | ||
315 | BT_DBG("parent %p", parent); | |
316 | ||
317 | /* Close not yet accepted channels */ | |
318 | while ((sk = bt_accept_dequeue(parent, NULL))) { | |
319 | sco_sock_close(sk); | |
320 | sco_sock_kill(sk); | |
321 | } | |
322 | ||
323 | parent->sk_state = BT_CLOSED; | |
324 | sock_set_flag(parent, SOCK_ZAPPED); | |
325 | } | |
326 | ||
327 | /* Kill socket (only if zapped and orphan) | |
328 | * Must be called on unlocked socket. | |
329 | */ | |
330 | static void sco_sock_kill(struct sock *sk) | |
331 | { | |
332 | if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket) | |
333 | return; | |
334 | ||
335 | BT_DBG("sk %p state %d", sk, sk->sk_state); | |
336 | ||
337 | /* Kill poor orphan */ | |
338 | bt_sock_unlink(&sco_sk_list, sk); | |
339 | sock_set_flag(sk, SOCK_DEAD); | |
340 | sock_put(sk); | |
341 | } | |
342 | ||
fd0b3ff7 | 343 | static void __sco_sock_close(struct sock *sk) |
1da177e4 | 344 | { |
fd0b3ff7 | 345 | BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket); |
1da177e4 LT |
346 | |
347 | switch (sk->sk_state) { | |
348 | case BT_LISTEN: | |
349 | sco_sock_cleanup_listen(sk); | |
350 | break; | |
351 | ||
352 | case BT_CONNECTED: | |
353 | case BT_CONFIG: | |
b7e98b51 | 354 | if (sco_pi(sk)->conn->hcon) { |
4a77708b LAD |
355 | sk->sk_state = BT_DISCONN; |
356 | sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT); | |
76a68ba0 | 357 | hci_conn_drop(sco_pi(sk)->conn->hcon); |
4a77708b LAD |
358 | sco_pi(sk)->conn->hcon = NULL; |
359 | } else | |
360 | sco_chan_del(sk, ECONNRESET); | |
361 | break; | |
362 | ||
eb20ff9c | 363 | case BT_CONNECT2: |
1da177e4 LT |
364 | case BT_CONNECT: |
365 | case BT_DISCONN: | |
366 | sco_chan_del(sk, ECONNRESET); | |
367 | break; | |
368 | ||
369 | default: | |
370 | sock_set_flag(sk, SOCK_ZAPPED); | |
371 | break; | |
3ff50b79 | 372 | } |
fd0b3ff7 | 373 | } |
1da177e4 | 374 | |
fd0b3ff7 MH |
375 | /* Must be called on unlocked socket. */ |
376 | static void sco_sock_close(struct sock *sk) | |
377 | { | |
378 | sco_sock_clear_timer(sk); | |
379 | lock_sock(sk); | |
380 | __sco_sock_close(sk); | |
1da177e4 | 381 | release_sock(sk); |
1da177e4 LT |
382 | sco_sock_kill(sk); |
383 | } | |
384 | ||
385 | static void sco_sock_init(struct sock *sk, struct sock *parent) | |
386 | { | |
387 | BT_DBG("sk %p", sk); | |
388 | ||
6230c9b4 | 389 | if (parent) { |
1da177e4 | 390 | sk->sk_type = parent->sk_type; |
20714bfe | 391 | bt_sk(sk)->flags = bt_sk(parent)->flags; |
6230c9b4 PM |
392 | security_sk_clone(parent, sk); |
393 | } | |
1da177e4 LT |
394 | } |
395 | ||
396 | static struct proto sco_proto = { | |
397 | .name = "SCO", | |
398 | .owner = THIS_MODULE, | |
399 | .obj_size = sizeof(struct sco_pinfo) | |
400 | }; | |
401 | ||
1b8d7ae4 | 402 | static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio) |
1da177e4 LT |
403 | { |
404 | struct sock *sk; | |
405 | ||
6257ff21 | 406 | sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto); |
1da177e4 LT |
407 | if (!sk) |
408 | return NULL; | |
409 | ||
410 | sock_init_data(sock, sk); | |
411 | INIT_LIST_HEAD(&bt_sk(sk)->accept_q); | |
412 | ||
413 | sk->sk_destruct = sco_sock_destruct; | |
414 | sk->sk_sndtimeo = SCO_CONN_TIMEOUT; | |
415 | ||
416 | sock_reset_flag(sk, SOCK_ZAPPED); | |
417 | ||
418 | sk->sk_protocol = proto; | |
419 | sk->sk_state = BT_OPEN; | |
420 | ||
ad10b1a4 FD |
421 | sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT; |
422 | ||
b24b8a24 | 423 | setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk); |
1da177e4 LT |
424 | |
425 | bt_sock_link(&sco_sk_list, sk); | |
426 | return sk; | |
427 | } | |
428 | ||
3f378b68 EP |
429 | static int sco_sock_create(struct net *net, struct socket *sock, int protocol, |
430 | int kern) | |
1da177e4 LT |
431 | { |
432 | struct sock *sk; | |
433 | ||
434 | BT_DBG("sock %p", sock); | |
435 | ||
436 | sock->state = SS_UNCONNECTED; | |
437 | ||
438 | if (sock->type != SOCK_SEQPACKET) | |
439 | return -ESOCKTNOSUPPORT; | |
440 | ||
441 | sock->ops = &sco_sock_ops; | |
442 | ||
1b8d7ae4 | 443 | sk = sco_sock_alloc(net, sock, protocol, GFP_ATOMIC); |
74da626a | 444 | if (!sk) |
1da177e4 LT |
445 | return -ENOMEM; |
446 | ||
447 | sco_sock_init(sk, NULL); | |
448 | return 0; | |
449 | } | |
450 | ||
451 | static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) | |
452 | { | |
453 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
454 | struct sock *sk = sock->sk; | |
1da177e4 LT |
455 | int err = 0; |
456 | ||
6ed93dc6 | 457 | BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr); |
1da177e4 LT |
458 | |
459 | if (!addr || addr->sa_family != AF_BLUETOOTH) | |
460 | return -EINVAL; | |
461 | ||
462 | lock_sock(sk); | |
463 | ||
464 | if (sk->sk_state != BT_OPEN) { | |
465 | err = -EBADFD; | |
466 | goto done; | |
467 | } | |
468 | ||
8ed21f7e MH |
469 | if (sk->sk_type != SOCK_SEQPACKET) { |
470 | err = -EINVAL; | |
471 | goto done; | |
1da177e4 LT |
472 | } |
473 | ||
eea96364 | 474 | bacpy(&sco_pi(sk)->src, &sa->sco_bdaddr); |
8ed21f7e MH |
475 | |
476 | sk->sk_state = BT_BOUND; | |
1da177e4 LT |
477 | |
478 | done: | |
479 | release_sock(sk); | |
480 | return err; | |
481 | } | |
482 | ||
483 | static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags) | |
484 | { | |
485 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
486 | struct sock *sk = sock->sk; | |
92f185c8 | 487 | int err; |
1da177e4 LT |
488 | |
489 | BT_DBG("sk %p", sk); | |
490 | ||
6503d961 CG |
491 | if (alen < sizeof(struct sockaddr_sco) || |
492 | addr->sa_family != AF_BLUETOOTH) | |
1da177e4 LT |
493 | return -EINVAL; |
494 | ||
495 | if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) | |
496 | return -EBADFD; | |
497 | ||
498 | if (sk->sk_type != SOCK_SEQPACKET) | |
499 | return -EINVAL; | |
500 | ||
501 | lock_sock(sk); | |
502 | ||
503 | /* Set destination address and psm */ | |
eea96364 | 504 | bacpy(&sco_pi(sk)->dst, &sa->sco_bdaddr); |
1da177e4 | 505 | |
735cbc47 AE |
506 | err = sco_connect(sk); |
507 | if (err) | |
1da177e4 LT |
508 | goto done; |
509 | ||
8e87d142 | 510 | err = bt_sock_wait_state(sk, BT_CONNECTED, |
be7c2b99 | 511 | sock_sndtimeo(sk, flags & O_NONBLOCK)); |
1da177e4 LT |
512 | |
513 | done: | |
514 | release_sock(sk); | |
515 | return err; | |
516 | } | |
517 | ||
518 | static int sco_sock_listen(struct socket *sock, int backlog) | |
519 | { | |
520 | struct sock *sk = sock->sk; | |
eea96364 | 521 | bdaddr_t *src = &sco_pi(sk)->src; |
1da177e4 LT |
522 | int err = 0; |
523 | ||
524 | BT_DBG("sk %p backlog %d", sk, backlog); | |
525 | ||
526 | lock_sock(sk); | |
527 | ||
7d5d775a | 528 | if (sk->sk_state != BT_BOUND) { |
1da177e4 LT |
529 | err = -EBADFD; |
530 | goto done; | |
531 | } | |
532 | ||
7d5d775a MH |
533 | if (sk->sk_type != SOCK_SEQPACKET) { |
534 | err = -EINVAL; | |
535 | goto done; | |
536 | } | |
537 | ||
fb334059 MH |
538 | write_lock(&sco_sk_list.lock); |
539 | ||
540 | if (__sco_get_sock_listen_by_addr(src)) { | |
541 | err = -EADDRINUSE; | |
542 | goto unlock; | |
543 | } | |
544 | ||
1da177e4 LT |
545 | sk->sk_max_ack_backlog = backlog; |
546 | sk->sk_ack_backlog = 0; | |
fb334059 | 547 | |
1da177e4 LT |
548 | sk->sk_state = BT_LISTEN; |
549 | ||
fb334059 MH |
550 | unlock: |
551 | write_unlock(&sco_sk_list.lock); | |
552 | ||
1da177e4 LT |
553 | done: |
554 | release_sock(sk); | |
555 | return err; | |
556 | } | |
557 | ||
558 | static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags) | |
559 | { | |
560 | DECLARE_WAITQUEUE(wait, current); | |
561 | struct sock *sk = sock->sk, *ch; | |
562 | long timeo; | |
563 | int err = 0; | |
564 | ||
565 | lock_sock(sk); | |
566 | ||
1da177e4 LT |
567 | timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK); |
568 | ||
569 | BT_DBG("sk %p timeo %ld", sk, timeo); | |
570 | ||
571 | /* Wait for an incoming connection. (wake-one). */ | |
aa395145 | 572 | add_wait_queue_exclusive(sk_sleep(sk), &wait); |
552b0d3c | 573 | while (1) { |
1da177e4 | 574 | set_current_state(TASK_INTERRUPTIBLE); |
552b0d3c PH |
575 | |
576 | if (sk->sk_state != BT_LISTEN) { | |
577 | err = -EBADFD; | |
1da177e4 LT |
578 | break; |
579 | } | |
580 | ||
552b0d3c PH |
581 | ch = bt_accept_dequeue(sk, newsock); |
582 | if (ch) | |
583 | break; | |
1da177e4 | 584 | |
552b0d3c PH |
585 | if (!timeo) { |
586 | err = -EAGAIN; | |
1da177e4 LT |
587 | break; |
588 | } | |
589 | ||
590 | if (signal_pending(current)) { | |
591 | err = sock_intr_errno(timeo); | |
592 | break; | |
593 | } | |
552b0d3c PH |
594 | |
595 | release_sock(sk); | |
596 | timeo = schedule_timeout(timeo); | |
597 | lock_sock(sk); | |
1da177e4 | 598 | } |
552b0d3c | 599 | __set_current_state(TASK_RUNNING); |
aa395145 | 600 | remove_wait_queue(sk_sleep(sk), &wait); |
1da177e4 LT |
601 | |
602 | if (err) | |
603 | goto done; | |
604 | ||
605 | newsock->state = SS_CONNECTED; | |
606 | ||
607 | BT_DBG("new socket %p", ch); | |
608 | ||
609 | done: | |
610 | release_sock(sk); | |
611 | return err; | |
612 | } | |
613 | ||
614 | static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer) | |
615 | { | |
616 | struct sockaddr_sco *sa = (struct sockaddr_sco *) addr; | |
617 | struct sock *sk = sock->sk; | |
618 | ||
619 | BT_DBG("sock %p, sk %p", sock, sk); | |
620 | ||
621 | addr->sa_family = AF_BLUETOOTH; | |
622 | *len = sizeof(struct sockaddr_sco); | |
623 | ||
624 | if (peer) | |
eea96364 | 625 | bacpy(&sa->sco_bdaddr, &sco_pi(sk)->dst); |
1da177e4 | 626 | else |
eea96364 | 627 | bacpy(&sa->sco_bdaddr, &sco_pi(sk)->src); |
1da177e4 LT |
628 | |
629 | return 0; | |
630 | } | |
631 | ||
8e87d142 | 632 | static int sco_sock_sendmsg(struct kiocb *iocb, struct socket *sock, |
1da177e4 LT |
633 | struct msghdr *msg, size_t len) |
634 | { | |
635 | struct sock *sk = sock->sk; | |
b9dbdbc1 | 636 | int err; |
1da177e4 LT |
637 | |
638 | BT_DBG("sock %p, sk %p", sock, sk); | |
639 | ||
c1cbe4b7 BL |
640 | err = sock_error(sk); |
641 | if (err) | |
642 | return err; | |
1da177e4 LT |
643 | |
644 | if (msg->msg_flags & MSG_OOB) | |
645 | return -EOPNOTSUPP; | |
646 | ||
647 | lock_sock(sk); | |
648 | ||
649 | if (sk->sk_state == BT_CONNECTED) | |
650 | err = sco_send_frame(sk, msg, len); | |
651 | else | |
652 | err = -ENOTCONN; | |
653 | ||
654 | release_sock(sk); | |
655 | return err; | |
656 | } | |
657 | ||
2f69a82a | 658 | static void sco_conn_defer_accept(struct hci_conn *conn, u16 setting) |
fa5513be FD |
659 | { |
660 | struct hci_dev *hdev = conn->hdev; | |
661 | ||
662 | BT_DBG("conn %p", conn); | |
663 | ||
664 | conn->state = BT_CONFIG; | |
665 | ||
666 | if (!lmp_esco_capable(hdev)) { | |
667 | struct hci_cp_accept_conn_req cp; | |
668 | ||
669 | bacpy(&cp.bdaddr, &conn->dst); | |
33f24048 | 670 | cp.role = 0x00; /* Ignored */ |
fa5513be FD |
671 | |
672 | hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp); | |
673 | } else { | |
674 | struct hci_cp_accept_sync_conn_req cp; | |
675 | ||
676 | bacpy(&cp.bdaddr, &conn->dst); | |
677 | cp.pkt_type = cpu_to_le16(conn->pkt_type); | |
678 | ||
679 | cp.tx_bandwidth = __constant_cpu_to_le32(0x00001f40); | |
680 | cp.rx_bandwidth = __constant_cpu_to_le32(0x00001f40); | |
2f69a82a FD |
681 | cp.content_format = cpu_to_le16(setting); |
682 | ||
683 | switch (setting & SCO_AIRMODE_MASK) { | |
684 | case SCO_AIRMODE_TRANSP: | |
685 | if (conn->pkt_type & ESCO_2EV3) | |
686 | cp.max_latency = __constant_cpu_to_le16(0x0008); | |
687 | else | |
688 | cp.max_latency = __constant_cpu_to_le16(0x000D); | |
689 | cp.retrans_effort = 0x02; | |
690 | break; | |
691 | case SCO_AIRMODE_CVSD: | |
692 | cp.max_latency = __constant_cpu_to_le16(0xffff); | |
693 | cp.retrans_effort = 0xff; | |
694 | break; | |
695 | } | |
fa5513be FD |
696 | |
697 | hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, | |
698 | sizeof(cp), &cp); | |
699 | } | |
700 | } | |
701 | ||
20714bfe FD |
702 | static int sco_sock_recvmsg(struct kiocb *iocb, struct socket *sock, |
703 | struct msghdr *msg, size_t len, int flags) | |
704 | { | |
705 | struct sock *sk = sock->sk; | |
706 | struct sco_pinfo *pi = sco_pi(sk); | |
707 | ||
708 | lock_sock(sk); | |
709 | ||
710 | if (sk->sk_state == BT_CONNECT2 && | |
711 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { | |
2f69a82a | 712 | sco_conn_defer_accept(pi->conn->hcon, pi->setting); |
20714bfe FD |
713 | sk->sk_state = BT_CONFIG; |
714 | ||
715 | release_sock(sk); | |
716 | return 0; | |
717 | } | |
718 | ||
719 | release_sock(sk); | |
720 | ||
721 | return bt_sock_recvmsg(iocb, sock, msg, len, flags); | |
722 | } | |
723 | ||
b7058842 | 724 | static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) |
1da177e4 LT |
725 | { |
726 | struct sock *sk = sock->sk; | |
ad10b1a4 FD |
727 | int len, err = 0; |
728 | struct bt_voice voice; | |
b96e9c67 | 729 | u32 opt; |
1da177e4 LT |
730 | |
731 | BT_DBG("sk %p", sk); | |
732 | ||
733 | lock_sock(sk); | |
734 | ||
735 | switch (optname) { | |
b96e9c67 FD |
736 | |
737 | case BT_DEFER_SETUP: | |
738 | if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) { | |
739 | err = -EINVAL; | |
740 | break; | |
741 | } | |
742 | ||
743 | if (get_user(opt, (u32 __user *) optval)) { | |
744 | err = -EFAULT; | |
745 | break; | |
746 | } | |
747 | ||
748 | if (opt) | |
749 | set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); | |
750 | else | |
751 | clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); | |
752 | break; | |
753 | ||
ad10b1a4 FD |
754 | case BT_VOICE: |
755 | if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND && | |
756 | sk->sk_state != BT_CONNECT2) { | |
757 | err = -EINVAL; | |
758 | break; | |
759 | } | |
760 | ||
761 | voice.setting = sco_pi(sk)->setting; | |
762 | ||
763 | len = min_t(unsigned int, sizeof(voice), optlen); | |
764 | if (copy_from_user((char *) &voice, optval, len)) { | |
765 | err = -EFAULT; | |
766 | break; | |
767 | } | |
768 | ||
769 | /* Explicitly check for these values */ | |
770 | if (voice.setting != BT_VOICE_TRANSPARENT && | |
771 | voice.setting != BT_VOICE_CVSD_16BIT) { | |
772 | err = -EINVAL; | |
773 | break; | |
774 | } | |
775 | ||
776 | sco_pi(sk)->setting = voice.setting; | |
777 | break; | |
778 | ||
1da177e4 LT |
779 | default: |
780 | err = -ENOPROTOOPT; | |
781 | break; | |
782 | } | |
783 | ||
784 | release_sock(sk); | |
785 | return err; | |
786 | } | |
787 | ||
d58daf42 | 788 | static int sco_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen) |
1da177e4 LT |
789 | { |
790 | struct sock *sk = sock->sk; | |
791 | struct sco_options opts; | |
792 | struct sco_conninfo cinfo; | |
8e87d142 | 793 | int len, err = 0; |
1da177e4 LT |
794 | |
795 | BT_DBG("sk %p", sk); | |
796 | ||
797 | if (get_user(len, optlen)) | |
798 | return -EFAULT; | |
799 | ||
800 | lock_sock(sk); | |
801 | ||
802 | switch (optname) { | |
803 | case SCO_OPTIONS: | |
9d225d22 JH |
804 | if (sk->sk_state != BT_CONNECTED && |
805 | !(sk->sk_state == BT_CONNECT2 && | |
806 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) { | |
1da177e4 LT |
807 | err = -ENOTCONN; |
808 | break; | |
809 | } | |
810 | ||
811 | opts.mtu = sco_pi(sk)->conn->mtu; | |
812 | ||
813 | BT_DBG("mtu %d", opts.mtu); | |
814 | ||
815 | len = min_t(unsigned int, len, sizeof(opts)); | |
816 | if (copy_to_user(optval, (char *)&opts, len)) | |
817 | err = -EFAULT; | |
818 | ||
819 | break; | |
820 | ||
821 | case SCO_CONNINFO: | |
9d225d22 JH |
822 | if (sk->sk_state != BT_CONNECTED && |
823 | !(sk->sk_state == BT_CONNECT2 && | |
824 | test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))) { | |
1da177e4 LT |
825 | err = -ENOTCONN; |
826 | break; | |
827 | } | |
828 | ||
c4c896e1 | 829 | memset(&cinfo, 0, sizeof(cinfo)); |
1da177e4 LT |
830 | cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle; |
831 | memcpy(cinfo.dev_class, sco_pi(sk)->conn->hcon->dev_class, 3); | |
832 | ||
833 | len = min_t(unsigned int, len, sizeof(cinfo)); | |
834 | if (copy_to_user(optval, (char *)&cinfo, len)) | |
835 | err = -EFAULT; | |
836 | ||
837 | break; | |
838 | ||
839 | default: | |
840 | err = -ENOPROTOOPT; | |
841 | break; | |
842 | } | |
843 | ||
844 | release_sock(sk); | |
845 | return err; | |
846 | } | |
847 | ||
d58daf42 MH |
848 | static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen) |
849 | { | |
850 | struct sock *sk = sock->sk; | |
851 | int len, err = 0; | |
ad10b1a4 | 852 | struct bt_voice voice; |
d58daf42 MH |
853 | |
854 | BT_DBG("sk %p", sk); | |
855 | ||
856 | if (level == SOL_SCO) | |
857 | return sco_sock_getsockopt_old(sock, optname, optval, optlen); | |
858 | ||
859 | if (get_user(len, optlen)) | |
860 | return -EFAULT; | |
861 | ||
862 | lock_sock(sk); | |
863 | ||
864 | switch (optname) { | |
b96e9c67 FD |
865 | |
866 | case BT_DEFER_SETUP: | |
867 | if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) { | |
868 | err = -EINVAL; | |
869 | break; | |
870 | } | |
871 | ||
872 | if (put_user(test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags), | |
873 | (u32 __user *) optval)) | |
874 | err = -EFAULT; | |
875 | ||
876 | break; | |
877 | ||
ad10b1a4 FD |
878 | case BT_VOICE: |
879 | voice.setting = sco_pi(sk)->setting; | |
880 | ||
881 | len = min_t(unsigned int, len, sizeof(voice)); | |
882 | if (copy_to_user(optval, (char *)&voice, len)) | |
883 | err = -EFAULT; | |
884 | ||
885 | break; | |
886 | ||
d58daf42 MH |
887 | default: |
888 | err = -ENOPROTOOPT; | |
889 | break; | |
890 | } | |
891 | ||
892 | release_sock(sk); | |
893 | return err; | |
894 | } | |
895 | ||
fd0b3ff7 MH |
896 | static int sco_sock_shutdown(struct socket *sock, int how) |
897 | { | |
898 | struct sock *sk = sock->sk; | |
899 | int err = 0; | |
900 | ||
901 | BT_DBG("sock %p, sk %p", sock, sk); | |
902 | ||
903 | if (!sk) | |
904 | return 0; | |
905 | ||
906 | lock_sock(sk); | |
907 | if (!sk->sk_shutdown) { | |
908 | sk->sk_shutdown = SHUTDOWN_MASK; | |
909 | sco_sock_clear_timer(sk); | |
910 | __sco_sock_close(sk); | |
911 | ||
912 | if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) | |
913 | err = bt_sock_wait_state(sk, BT_CLOSED, | |
be7c2b99 | 914 | sk->sk_lingertime); |
fd0b3ff7 MH |
915 | } |
916 | release_sock(sk); | |
917 | return err; | |
918 | } | |
919 | ||
1da177e4 LT |
920 | static int sco_sock_release(struct socket *sock) |
921 | { | |
922 | struct sock *sk = sock->sk; | |
923 | int err = 0; | |
924 | ||
925 | BT_DBG("sock %p, sk %p", sock, sk); | |
926 | ||
927 | if (!sk) | |
928 | return 0; | |
929 | ||
930 | sco_sock_close(sk); | |
931 | ||
932 | if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) { | |
933 | lock_sock(sk); | |
934 | err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); | |
935 | release_sock(sk); | |
936 | } | |
937 | ||
938 | sock_orphan(sk); | |
939 | sco_sock_kill(sk); | |
940 | return err; | |
941 | } | |
942 | ||
943 | static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent) | |
944 | { | |
945 | BT_DBG("conn %p", conn); | |
946 | ||
947 | sco_pi(sk)->conn = conn; | |
948 | conn->sk = sk; | |
949 | ||
950 | if (parent) | |
951 | bt_accept_enqueue(parent, sk); | |
952 | } | |
953 | ||
8e87d142 | 954 | /* Delete channel. |
1da177e4 LT |
955 | * Must be called on the locked socket. */ |
956 | static void sco_chan_del(struct sock *sk, int err) | |
957 | { | |
958 | struct sco_conn *conn; | |
959 | ||
960 | conn = sco_pi(sk)->conn; | |
961 | ||
962 | BT_DBG("sk %p, conn %p, err %d", sk, conn, err); | |
963 | ||
0b27a4b9 GP |
964 | if (conn) { |
965 | sco_conn_lock(conn); | |
966 | conn->sk = NULL; | |
967 | sco_pi(sk)->conn = NULL; | |
968 | sco_conn_unlock(conn); | |
969 | ||
970 | if (conn->hcon) | |
76a68ba0 | 971 | hci_conn_drop(conn->hcon); |
0b27a4b9 GP |
972 | } |
973 | ||
1da177e4 LT |
974 | sk->sk_state = BT_CLOSED; |
975 | sk->sk_err = err; | |
976 | sk->sk_state_change(sk); | |
977 | ||
978 | sock_set_flag(sk, SOCK_ZAPPED); | |
979 | } | |
980 | ||
981 | static void sco_conn_ready(struct sco_conn *conn) | |
982 | { | |
735cbc47 AE |
983 | struct sock *parent; |
984 | struct sock *sk = conn->sk; | |
1da177e4 LT |
985 | |
986 | BT_DBG("conn %p", conn); | |
987 | ||
735cbc47 | 988 | if (sk) { |
1da177e4 LT |
989 | sco_sock_clear_timer(sk); |
990 | bh_lock_sock(sk); | |
991 | sk->sk_state = BT_CONNECTED; | |
992 | sk->sk_state_change(sk); | |
993 | bh_unlock_sock(sk); | |
994 | } else { | |
40528088 AG |
995 | sco_conn_lock(conn); |
996 | ||
041987cf | 997 | parent = sco_get_sock_listen(&conn->hcon->src); |
40528088 AG |
998 | if (!parent) { |
999 | sco_conn_unlock(conn); | |
1000 | return; | |
1001 | } | |
1da177e4 LT |
1002 | |
1003 | bh_lock_sock(parent); | |
1004 | ||
b9dbdbc1 | 1005 | sk = sco_sock_alloc(sock_net(parent), NULL, |
be7c2b99 | 1006 | BTPROTO_SCO, GFP_ATOMIC); |
1da177e4 LT |
1007 | if (!sk) { |
1008 | bh_unlock_sock(parent); | |
40528088 AG |
1009 | sco_conn_unlock(conn); |
1010 | return; | |
1da177e4 LT |
1011 | } |
1012 | ||
1013 | sco_sock_init(sk, parent); | |
1014 | ||
eea96364 MH |
1015 | bacpy(&sco_pi(sk)->src, &conn->hcon->src); |
1016 | bacpy(&sco_pi(sk)->dst, &conn->hcon->dst); | |
1da177e4 LT |
1017 | |
1018 | hci_conn_hold(conn->hcon); | |
1019 | __sco_chan_add(conn, sk, parent); | |
1020 | ||
20714bfe FD |
1021 | if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags)) |
1022 | sk->sk_state = BT_CONNECT2; | |
1023 | else | |
1024 | sk->sk_state = BT_CONNECTED; | |
1da177e4 LT |
1025 | |
1026 | /* Wake up parent */ | |
1027 | parent->sk_data_ready(parent, 1); | |
1028 | ||
1029 | bh_unlock_sock(parent); | |
1da177e4 | 1030 | |
40528088 AG |
1031 | sco_conn_unlock(conn); |
1032 | } | |
1da177e4 LT |
1033 | } |
1034 | ||
1035 | /* ----- SCO interface with lower layer (HCI) ----- */ | |
20714bfe | 1036 | int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags) |
1da177e4 | 1037 | { |
fc5fef61 | 1038 | struct sock *sk; |
71aeeaa1 MH |
1039 | int lm = 0; |
1040 | ||
6ed93dc6 | 1041 | BT_DBG("hdev %s, bdaddr %pMR", hdev->name, bdaddr); |
1da177e4 | 1042 | |
71aeeaa1 MH |
1043 | /* Find listening sockets */ |
1044 | read_lock(&sco_sk_list.lock); | |
b67bfe0d | 1045 | sk_for_each(sk, &sco_sk_list.head) { |
71aeeaa1 MH |
1046 | if (sk->sk_state != BT_LISTEN) |
1047 | continue; | |
1048 | ||
eea96364 MH |
1049 | if (!bacmp(&sco_pi(sk)->src, &hdev->bdaddr) || |
1050 | !bacmp(&sco_pi(sk)->src, BDADDR_ANY)) { | |
71aeeaa1 | 1051 | lm |= HCI_LM_ACCEPT; |
20714bfe FD |
1052 | |
1053 | if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) | |
1054 | *flags |= HCI_PROTO_DEFER; | |
71aeeaa1 MH |
1055 | break; |
1056 | } | |
1057 | } | |
1058 | read_unlock(&sco_sk_list.lock); | |
1059 | ||
1060 | return lm; | |
1da177e4 LT |
1061 | } |
1062 | ||
9e664631 | 1063 | void sco_connect_cfm(struct hci_conn *hcon, __u8 status) |
1da177e4 | 1064 | { |
6ed93dc6 | 1065 | BT_DBG("hcon %p bdaddr %pMR status %d", hcon, &hcon->dst, status); |
1da177e4 LT |
1066 | if (!status) { |
1067 | struct sco_conn *conn; | |
1068 | ||
519e42b3 | 1069 | conn = sco_conn_add(hcon); |
1da177e4 LT |
1070 | if (conn) |
1071 | sco_conn_ready(conn); | |
8e87d142 | 1072 | } else |
e175072f | 1073 | sco_conn_del(hcon, bt_to_errno(status)); |
1da177e4 LT |
1074 | } |
1075 | ||
9e664631 | 1076 | void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason) |
1da177e4 LT |
1077 | { |
1078 | BT_DBG("hcon %p reason %d", hcon, reason); | |
1079 | ||
e175072f | 1080 | sco_conn_del(hcon, bt_to_errno(reason)); |
1da177e4 LT |
1081 | } |
1082 | ||
686ebf28 | 1083 | int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) |
1da177e4 LT |
1084 | { |
1085 | struct sco_conn *conn = hcon->sco_data; | |
1086 | ||
1087 | if (!conn) | |
1088 | goto drop; | |
1089 | ||
1090 | BT_DBG("conn %p len %d", conn, skb->len); | |
1091 | ||
1092 | if (skb->len) { | |
1093 | sco_recv_frame(conn, skb); | |
1094 | return 0; | |
1095 | } | |
1096 | ||
1097 | drop: | |
8e87d142 | 1098 | kfree_skb(skb); |
1da177e4 LT |
1099 | return 0; |
1100 | } | |
1101 | ||
aef7d97c | 1102 | static int sco_debugfs_show(struct seq_file *f, void *p) |
1da177e4 LT |
1103 | { |
1104 | struct sock *sk; | |
1da177e4 | 1105 | |
ee65d19e | 1106 | read_lock(&sco_sk_list.lock); |
1da177e4 | 1107 | |
b67bfe0d | 1108 | sk_for_each(sk, &sco_sk_list.head) { |
eea96364 MH |
1109 | seq_printf(f, "%pMR %pMR %d\n", &sco_pi(sk)->src, |
1110 | &sco_pi(sk)->dst, sk->sk_state); | |
be9d1227 | 1111 | } |
1da177e4 | 1112 | |
ee65d19e | 1113 | read_unlock(&sco_sk_list.lock); |
1da177e4 | 1114 | |
aef7d97c | 1115 | return 0; |
1da177e4 LT |
1116 | } |
1117 | ||
aef7d97c MH |
1118 | static int sco_debugfs_open(struct inode *inode, struct file *file) |
1119 | { | |
1120 | return single_open(file, sco_debugfs_show, inode->i_private); | |
1121 | } | |
1122 | ||
1123 | static const struct file_operations sco_debugfs_fops = { | |
1124 | .open = sco_debugfs_open, | |
1125 | .read = seq_read, | |
1126 | .llseek = seq_lseek, | |
1127 | .release = single_release, | |
1128 | }; | |
1129 | ||
1130 | static struct dentry *sco_debugfs; | |
1da177e4 | 1131 | |
90ddc4f0 | 1132 | static const struct proto_ops sco_sock_ops = { |
1da177e4 LT |
1133 | .family = PF_BLUETOOTH, |
1134 | .owner = THIS_MODULE, | |
1135 | .release = sco_sock_release, | |
1136 | .bind = sco_sock_bind, | |
1137 | .connect = sco_sock_connect, | |
1138 | .listen = sco_sock_listen, | |
1139 | .accept = sco_sock_accept, | |
1140 | .getname = sco_sock_getname, | |
1141 | .sendmsg = sco_sock_sendmsg, | |
20714bfe | 1142 | .recvmsg = sco_sock_recvmsg, |
1da177e4 | 1143 | .poll = bt_sock_poll, |
3241ad82 | 1144 | .ioctl = bt_sock_ioctl, |
1da177e4 LT |
1145 | .mmap = sock_no_mmap, |
1146 | .socketpair = sock_no_socketpair, | |
fd0b3ff7 | 1147 | .shutdown = sco_sock_shutdown, |
1da177e4 LT |
1148 | .setsockopt = sco_sock_setsockopt, |
1149 | .getsockopt = sco_sock_getsockopt | |
1150 | }; | |
1151 | ||
ec1b4cf7 | 1152 | static const struct net_proto_family sco_sock_family_ops = { |
1da177e4 LT |
1153 | .family = PF_BLUETOOTH, |
1154 | .owner = THIS_MODULE, | |
1155 | .create = sco_sock_create, | |
1156 | }; | |
1157 | ||
64274518 | 1158 | int __init sco_init(void) |
1da177e4 LT |
1159 | { |
1160 | int err; | |
1161 | ||
1162 | err = proto_register(&sco_proto, 0); | |
1163 | if (err < 0) | |
1164 | return err; | |
1165 | ||
1166 | err = bt_sock_register(BTPROTO_SCO, &sco_sock_family_ops); | |
1167 | if (err < 0) { | |
1168 | BT_ERR("SCO socket registration failed"); | |
1169 | goto error; | |
1170 | } | |
1171 | ||
b0316615 | 1172 | err = bt_procfs_init(&init_net, "sco", &sco_sk_list, NULL); |
de9b9212 MY |
1173 | if (err < 0) { |
1174 | BT_ERR("Failed to create SCO proc file"); | |
1175 | bt_sock_unregister(BTPROTO_SCO); | |
1176 | goto error; | |
1177 | } | |
1178 | ||
1da177e4 LT |
1179 | BT_INFO("SCO socket layer initialized"); |
1180 | ||
1120e4bf MH |
1181 | if (IS_ERR_OR_NULL(bt_debugfs)) |
1182 | return 0; | |
1183 | ||
1184 | sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs, | |
1185 | NULL, &sco_debugfs_fops); | |
1186 | ||
1da177e4 LT |
1187 | return 0; |
1188 | ||
1189 | error: | |
1190 | proto_unregister(&sco_proto); | |
1191 | return err; | |
1192 | } | |
1193 | ||
64274518 | 1194 | void __exit sco_exit(void) |
1da177e4 | 1195 | { |
de9b9212 MY |
1196 | bt_procfs_cleanup(&init_net, "sco"); |
1197 | ||
aef7d97c | 1198 | debugfs_remove(sco_debugfs); |
1da177e4 | 1199 | |
5e9d7f86 | 1200 | bt_sock_unregister(BTPROTO_SCO); |
1da177e4 | 1201 | |
1da177e4 LT |
1202 | proto_unregister(&sco_proto); |
1203 | } | |
1204 | ||
7cb127d5 MH |
1205 | module_param(disable_esco, bool, 0644); |
1206 | MODULE_PARM_DESC(disable_esco, "Disable eSCO connection creation"); |