1 /*
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
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
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23 */
24
25 /* Bluetooth HCI event handling. */
26
27 #include <linux/module.h>
28
29 #include <linux/types.h>
30 #include <linux/errno.h>
31 #include <linux/kernel.h>
32 #include <linux/slab.h>
33 #include <linux/poll.h>
34 #include <linux/fcntl.h>
35 #include <linux/init.h>
36 #include <linux/skbuff.h>
37 #include <linux/interrupt.h>
38 #include <linux/notifier.h>
39 #include <net/sock.h>
40
41 #include <asm/system.h>
42 #include <asm/uaccess.h>
43 #include <asm/unaligned.h>
44
45 #include <net/bluetooth/bluetooth.h>
46 #include <net/bluetooth/hci_core.h>
47
48 /* Handle HCI Event packets */
49
50 static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
51 {
52 __u8 status = *((__u8 *) skb->data);
53
54 BT_DBG("%s status 0x%x", hdev->name, status);
55
56 if (status)
57 return;
58
59 clear_bit(HCI_INQUIRY, &hdev->flags);
60
61 hci_req_complete(hdev, status);
62
63 hci_conn_check_pending(hdev);
64 }
65
66 static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
67 {
68 __u8 status = *((__u8 *) skb->data);
69
70 BT_DBG("%s status 0x%x", hdev->name, status);
71
72 if (status)
73 return;
74
75 clear_bit(HCI_INQUIRY, &hdev->flags);
76
77 hci_conn_check_pending(hdev);
78 }
79
80 static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev, struct sk_buff *skb)
81 {
82 BT_DBG("%s", hdev->name);
83 }
84
85 static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
86 {
87 struct hci_rp_role_discovery *rp = (void *) skb->data;
88 struct hci_conn *conn;
89
90 BT_DBG("%s status 0x%x", hdev->name, rp->status);
91
92 if (rp->status)
93 return;
94
95 hci_dev_lock(hdev);
96
97 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
98 if (conn) {
99 if (rp->role)
100 conn->link_mode &= ~HCI_LM_MASTER;
101 else
102 conn->link_mode |= HCI_LM_MASTER;
103 }
104
105 hci_dev_unlock(hdev);
106 }
107
108 static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
109 {
110 struct hci_rp_read_link_policy *rp = (void *) skb->data;
111 struct hci_conn *conn;
112
113 BT_DBG("%s status 0x%x", hdev->name, rp->status);
114
115 if (rp->status)
116 return;
117
118 hci_dev_lock(hdev);
119
120 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
121 if (conn)
122 conn->link_policy = __le16_to_cpu(rp->policy);
123
124 hci_dev_unlock(hdev);
125 }
126
127 static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
128 {
129 struct hci_rp_write_link_policy *rp = (void *) skb->data;
130 struct hci_conn *conn;
131 void *sent;
132
133 BT_DBG("%s status 0x%x", hdev->name, rp->status);
134
135 if (rp->status)
136 return;
137
138 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
139 if (!sent)
140 return;
141
142 hci_dev_lock(hdev);
143
144 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
145 if (conn)
146 conn->link_policy = get_unaligned_le16(sent + 2);
147
148 hci_dev_unlock(hdev);
149 }
150
151 static void hci_cc_read_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
152 {
153 struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
154
155 BT_DBG("%s status 0x%x", hdev->name, rp->status);
156
157 if (rp->status)
158 return;
159
160 hdev->link_policy = __le16_to_cpu(rp->policy);
161 }
162
163 static void hci_cc_write_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
164 {
165 __u8 status = *((__u8 *) skb->data);
166 void *sent;
167
168 BT_DBG("%s status 0x%x", hdev->name, status);
169
170 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
171 if (!sent)
172 return;
173
174 if (!status)
175 hdev->link_policy = get_unaligned_le16(sent);
176
177 hci_req_complete(hdev, status);
178 }
179
180 static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
181 {
182 __u8 status = *((__u8 *) skb->data);
183
184 BT_DBG("%s status 0x%x", hdev->name, status);
185
186 hci_req_complete(hdev, status);
187 }
188
189 static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
190 {
191 __u8 status = *((__u8 *) skb->data);
192 void *sent;
193
194 BT_DBG("%s status 0x%x", hdev->name, status);
195
196 if (status)
197 return;
198
199 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
200 if (!sent)
201 return;
202
203 memcpy(hdev->dev_name, sent, 248);
204 }
205
206 static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
207 {
208 struct hci_rp_read_local_name *rp = (void *) skb->data;
209
210 BT_DBG("%s status 0x%x", hdev->name, rp->status);
211
212 if (rp->status)
213 return;
214
215 memcpy(hdev->dev_name, rp->name, 248);
216 }
217
218 static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
219 {
220 __u8 status = *((__u8 *) skb->data);
221 void *sent;
222
223 BT_DBG("%s status 0x%x", hdev->name, status);
224
225 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
226 if (!sent)
227 return;
228
229 if (!status) {
230 __u8 param = *((__u8 *) sent);
231
232 if (param == AUTH_ENABLED)
233 set_bit(HCI_AUTH, &hdev->flags);
234 else
235 clear_bit(HCI_AUTH, &hdev->flags);
236 }
237
238 hci_req_complete(hdev, status);
239 }
240
241 static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
242 {
243 __u8 status = *((__u8 *) skb->data);
244 void *sent;
245
246 BT_DBG("%s status 0x%x", hdev->name, status);
247
248 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
249 if (!sent)
250 return;
251
252 if (!status) {
253 __u8 param = *((__u8 *) sent);
254
255 if (param)
256 set_bit(HCI_ENCRYPT, &hdev->flags);
257 else
258 clear_bit(HCI_ENCRYPT, &hdev->flags);
259 }
260
261 hci_req_complete(hdev, status);
262 }
263
264 static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
265 {
266 __u8 status = *((__u8 *) skb->data);
267 void *sent;
268
269 BT_DBG("%s status 0x%x", hdev->name, status);
270
271 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
272 if (!sent)
273 return;
274
275 if (!status) {
276 __u8 param = *((__u8 *) sent);
277
278 clear_bit(HCI_PSCAN, &hdev->flags);
279 clear_bit(HCI_ISCAN, &hdev->flags);
280
281 if (param & SCAN_INQUIRY)
282 set_bit(HCI_ISCAN, &hdev->flags);
283
284 if (param & SCAN_PAGE)
285 set_bit(HCI_PSCAN, &hdev->flags);
286 }
287
288 hci_req_complete(hdev, status);
289 }
290
291 static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
292 {
293 struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
294
295 BT_DBG("%s status 0x%x", hdev->name, rp->status);
296
297 if (rp->status)
298 return;
299
300 memcpy(hdev->dev_class, rp->dev_class, 3);
301
302 BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
303 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
304 }
305
306 static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
307 {
308 __u8 status = *((__u8 *) skb->data);
309 void *sent;
310
311 BT_DBG("%s status 0x%x", hdev->name, status);
312
313 if (status)
314 return;
315
316 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
317 if (!sent)
318 return;
319
320 memcpy(hdev->dev_class, sent, 3);
321 }
322
323 static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
324 {
325 struct hci_rp_read_voice_setting *rp = (void *) skb->data;
326 __u16 setting;
327
328 BT_DBG("%s status 0x%x", hdev->name, rp->status);
329
330 if (rp->status)
331 return;
332
333 setting = __le16_to_cpu(rp->voice_setting);
334
335 if (hdev->voice_setting == setting)
336 return;
337
338 hdev->voice_setting = setting;
339
340 BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
341
342 if (hdev->notify) {
343 tasklet_disable(&hdev->tx_task);
344 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
345 tasklet_enable(&hdev->tx_task);
346 }
347 }
348
349 static void hci_cc_write_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
350 {
351 __u8 status = *((__u8 *) skb->data);
352 __u16 setting;
353 void *sent;
354
355 BT_DBG("%s status 0x%x", hdev->name, status);
356
357 if (status)
358 return;
359
360 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
361 if (!sent)
362 return;
363
364 setting = get_unaligned_le16(sent);
365
366 if (hdev->voice_setting == setting)
367 return;
368
369 hdev->voice_setting = setting;
370
371 BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
372
373 if (hdev->notify) {
374 tasklet_disable(&hdev->tx_task);
375 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
376 tasklet_enable(&hdev->tx_task);
377 }
378 }
379
380 static void hci_cc_host_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
381 {
382 __u8 status = *((__u8 *) skb->data);
383
384 BT_DBG("%s status 0x%x", hdev->name, status);
385
386 hci_req_complete(hdev, status);
387 }
388
389 static void hci_cc_read_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
390 {
391 struct hci_rp_read_ssp_mode *rp = (void *) skb->data;
392
393 BT_DBG("%s status 0x%x", hdev->name, rp->status);
394
395 if (rp->status)
396 return;
397
398 hdev->ssp_mode = rp->mode;
399 }
400
401 static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
402 {
403 __u8 status = *((__u8 *) skb->data);
404 void *sent;
405
406 BT_DBG("%s status 0x%x", hdev->name, status);
407
408 if (status)
409 return;
410
411 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
412 if (!sent)
413 return;
414
415 hdev->ssp_mode = *((__u8 *) sent);
416 }
417
418 static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
419 {
420 struct hci_rp_read_local_version *rp = (void *) skb->data;
421
422 BT_DBG("%s status 0x%x", hdev->name, rp->status);
423
424 if (rp->status)
425 return;
426
427 hdev->hci_ver = rp->hci_ver;
428 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
429 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
430
431 BT_DBG("%s manufacturer %d hci ver %d:%d", hdev->name,
432 hdev->manufacturer,
433 hdev->hci_ver, hdev->hci_rev);
434 }
435
436 static void hci_cc_read_local_commands(struct hci_dev *hdev, struct sk_buff *skb)
437 {
438 struct hci_rp_read_local_commands *rp = (void *) skb->data;
439
440 BT_DBG("%s status 0x%x", hdev->name, rp->status);
441
442 if (rp->status)
443 return;
444
445 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
446 }
447
448 static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb)
449 {
450 struct hci_rp_read_local_features *rp = (void *) skb->data;
451
452 BT_DBG("%s status 0x%x", hdev->name, rp->status);
453
454 if (rp->status)
455 return;
456
457 memcpy(hdev->features, rp->features, 8);
458
459 /* Adjust default settings according to features
460 * supported by device. */
461
462 if (hdev->features[0] & LMP_3SLOT)
463 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
464
465 if (hdev->features[0] & LMP_5SLOT)
466 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
467
468 if (hdev->features[1] & LMP_HV2) {
469 hdev->pkt_type |= (HCI_HV2);
470 hdev->esco_type |= (ESCO_HV2);
471 }
472
473 if (hdev->features[1] & LMP_HV3) {
474 hdev->pkt_type |= (HCI_HV3);
475 hdev->esco_type |= (ESCO_HV3);
476 }
477
478 if (hdev->features[3] & LMP_ESCO)
479 hdev->esco_type |= (ESCO_EV3);
480
481 if (hdev->features[4] & LMP_EV4)
482 hdev->esco_type |= (ESCO_EV4);
483
484 if (hdev->features[4] & LMP_EV5)
485 hdev->esco_type |= (ESCO_EV5);
486
487 if (hdev->features[5] & LMP_EDR_ESCO_2M)
488 hdev->esco_type |= (ESCO_2EV3);
489
490 if (hdev->features[5] & LMP_EDR_ESCO_3M)
491 hdev->esco_type |= (ESCO_3EV3);
492
493 if (hdev->features[5] & LMP_EDR_3S_ESCO)
494 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
495
496 BT_DBG("%s features 0x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", hdev->name,
497 hdev->features[0], hdev->features[1],
498 hdev->features[2], hdev->features[3],
499 hdev->features[4], hdev->features[5],
500 hdev->features[6], hdev->features[7]);
501 }
502
503 static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
504 {
505 struct hci_rp_read_buffer_size *rp = (void *) skb->data;
506
507 BT_DBG("%s status 0x%x", hdev->name, rp->status);
508
509 if (rp->status)
510 return;
511
512 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
513 hdev->sco_mtu = rp->sco_mtu;
514 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
515 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
516
517 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
518 hdev->sco_mtu = 64;
519 hdev->sco_pkts = 8;
520 }
521
522 hdev->acl_cnt = hdev->acl_pkts;
523 hdev->sco_cnt = hdev->sco_pkts;
524
525 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name,
526 hdev->acl_mtu, hdev->acl_pkts,
527 hdev->sco_mtu, hdev->sco_pkts);
528 }
529
530 static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
531 {
532 struct hci_rp_read_bd_addr *rp = (void *) skb->data;
533
534 BT_DBG("%s status 0x%x", hdev->name, rp->status);
535
536 if (!rp->status)
537 bacpy(&hdev->bdaddr, &rp->bdaddr);
538
539 hci_req_complete(hdev, rp->status);
540 }
541
542 static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
543 {
544 BT_DBG("%s status 0x%x", hdev->name, status);
545
546 if (status) {
547 hci_req_complete(hdev, status);
548
549 hci_conn_check_pending(hdev);
550 } else
551 set_bit(HCI_INQUIRY, &hdev->flags);
552 }
553
554 static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
555 {
556 struct hci_cp_create_conn *cp;
557 struct hci_conn *conn;
558
559 BT_DBG("%s status 0x%x", hdev->name, status);
560
561 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
562 if (!cp)
563 return;
564
565 hci_dev_lock(hdev);
566
567 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
568
569 BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->bdaddr), conn);
570
571 if (status) {
572 if (conn && conn->state == BT_CONNECT) {
573 if (status != 0x0c || conn->attempt > 2) {
574 conn->state = BT_CLOSED;
575 hci_proto_connect_cfm(conn, status);
576 hci_conn_del(conn);
577 } else
578 conn->state = BT_CONNECT2;
579 }
580 } else {
581 if (!conn) {
582 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
583 if (conn) {
584 conn->out = 1;
585 conn->link_mode |= HCI_LM_MASTER;
586 } else
587 BT_ERR("No memmory for new connection");
588 }
589 }
590
591 hci_dev_unlock(hdev);
592 }
593
594 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
595 {
596 struct hci_cp_add_sco *cp;
597 struct hci_conn *acl, *sco;
598 __u16 handle;
599
600 BT_DBG("%s status 0x%x", hdev->name, status);
601
602 if (!status)
603 return;
604
605 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
606 if (!cp)
607 return;
608
609 handle = __le16_to_cpu(cp->handle);
610
611 BT_DBG("%s handle %d", hdev->name, handle);
612
613 hci_dev_lock(hdev);
614
615 acl = hci_conn_hash_lookup_handle(hdev, handle);
616 if (acl && (sco = acl->link)) {
617 sco->state = BT_CLOSED;
618
619 hci_proto_connect_cfm(sco, status);
620 hci_conn_del(sco);
621 }
622
623 hci_dev_unlock(hdev);
624 }
625
626 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
627 {
628 struct hci_cp_auth_requested *cp;
629 struct hci_conn *conn;
630
631 BT_DBG("%s status 0x%x", hdev->name, status);
632
633 if (!status)
634 return;
635
636 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
637 if (!cp)
638 return;
639
640 hci_dev_lock(hdev);
641
642 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
643 if (conn) {
644 if (conn->state == BT_CONFIG) {
645 hci_proto_connect_cfm(conn, status);
646 hci_conn_put(conn);
647 }
648 }
649
650 hci_dev_unlock(hdev);
651 }
652
653 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
654 {
655 struct hci_cp_set_conn_encrypt *cp;
656 struct hci_conn *conn;
657
658 BT_DBG("%s status 0x%x", hdev->name, status);
659
660 if (!status)
661 return;
662
663 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
664 if (!cp)
665 return;
666
667 hci_dev_lock(hdev);
668
669 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
670 if (conn) {
671 if (conn->state == BT_CONFIG) {
672 hci_proto_connect_cfm(conn, status);
673 hci_conn_put(conn);
674 }
675 }
676
677 hci_dev_unlock(hdev);
678 }
679
680 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
681 {
682 BT_DBG("%s status 0x%x", hdev->name, status);
683 }
684
685 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
686 {
687 struct hci_cp_read_remote_features *cp;
688 struct hci_conn *conn;
689
690 BT_DBG("%s status 0x%x", hdev->name, status);
691
692 if (!status)
693 return;
694
695 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
696 if (!cp)
697 return;
698
699 hci_dev_lock(hdev);
700
701 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
702 if (conn) {
703 if (conn->state == BT_CONFIG) {
704 hci_proto_connect_cfm(conn, status);
705 hci_conn_put(conn);
706 }
707 }
708
709 hci_dev_unlock(hdev);
710 }
711
712 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
713 {
714 struct hci_cp_read_remote_ext_features *cp;
715 struct hci_conn *conn;
716
717 BT_DBG("%s status 0x%x", hdev->name, status);
718
719 if (!status)
720 return;
721
722 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
723 if (!cp)
724 return;
725
726 hci_dev_lock(hdev);
727
728 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
729 if (conn) {
730 if (conn->state == BT_CONFIG) {
731 hci_proto_connect_cfm(conn, status);
732 hci_conn_put(conn);
733 }
734 }
735
736 hci_dev_unlock(hdev);
737 }
738
739 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
740 {
741 struct hci_cp_setup_sync_conn *cp;
742 struct hci_conn *acl, *sco;
743 __u16 handle;
744
745 BT_DBG("%s status 0x%x", hdev->name, status);
746
747 if (!status)
748 return;
749
750 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
751 if (!cp)
752 return;
753
754 handle = __le16_to_cpu(cp->handle);
755
756 BT_DBG("%s handle %d", hdev->name, handle);
757
758 hci_dev_lock(hdev);
759
760 acl = hci_conn_hash_lookup_handle(hdev, handle);
761 if (acl && (sco = acl->link)) {
762 sco->state = BT_CLOSED;
763
764 hci_proto_connect_cfm(sco, status);
765 hci_conn_del(sco);
766 }
767
768 hci_dev_unlock(hdev);
769 }
770
771 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
772 {
773 struct hci_cp_sniff_mode *cp;
774 struct hci_conn *conn;
775
776 BT_DBG("%s status 0x%x", hdev->name, status);
777
778 if (!status)
779 return;
780
781 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
782 if (!cp)
783 return;
784
785 hci_dev_lock(hdev);
786
787 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
788 if (conn)
789 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
790
791 hci_dev_unlock(hdev);
792 }
793
794 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
795 {
796 struct hci_cp_exit_sniff_mode *cp;
797 struct hci_conn *conn;
798
799 BT_DBG("%s status 0x%x", hdev->name, status);
800
801 if (!status)
802 return;
803
804 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
805 if (!cp)
806 return;
807
808 hci_dev_lock(hdev);
809
810 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
811 if (conn)
812 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
813
814 hci_dev_unlock(hdev);
815 }
816
817 static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
818 {
819 __u8 status = *((__u8 *) skb->data);
820
821 BT_DBG("%s status %d", hdev->name, status);
822
823 clear_bit(HCI_INQUIRY, &hdev->flags);
824
825 hci_req_complete(hdev, status);
826
827 hci_conn_check_pending(hdev);
828 }
829
830 static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
831 {
832 struct inquiry_data data;
833 struct inquiry_info *info = (void *) (skb->data + 1);
834 int num_rsp = *((__u8 *) skb->data);
835
836 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
837
838 if (!num_rsp)
839 return;
840
841 hci_dev_lock(hdev);
842
843 for (; num_rsp; num_rsp--) {
844 bacpy(&data.bdaddr, &info->bdaddr);
845 data.pscan_rep_mode = info->pscan_rep_mode;
846 data.pscan_period_mode = info->pscan_period_mode;
847 data.pscan_mode = info->pscan_mode;
848 memcpy(data.dev_class, info->dev_class, 3);
849 data.clock_offset = info->clock_offset;
850 data.rssi = 0x00;
851 data.ssp_mode = 0x00;
852 info++;
853 hci_inquiry_cache_update(hdev, &data);
854 }
855
856 hci_dev_unlock(hdev);
857 }
858
859 static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
860 {
861 struct hci_ev_conn_complete *ev = (void *) skb->data;
862 struct hci_conn *conn;
863
864 BT_DBG("%s", hdev->name);
865
866 hci_dev_lock(hdev);
867
868 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
869 if (!conn) {
870 if (ev->link_type != SCO_LINK)
871 goto unlock;
872
873 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
874 if (!conn)
875 goto unlock;
876
877 conn->type = SCO_LINK;
878 }
879
880 if (!ev->status) {
881 conn->handle = __le16_to_cpu(ev->handle);
882
883 if (conn->type == ACL_LINK) {
884 conn->state = BT_CONFIG;
885 hci_conn_hold(conn);
886 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
887 } else
888 conn->state = BT_CONNECTED;
889
890 hci_conn_hold_device(conn);
891 hci_conn_add_sysfs(conn);
892
893 if (test_bit(HCI_AUTH, &hdev->flags))
894 conn->link_mode |= HCI_LM_AUTH;
895
896 if (test_bit(HCI_ENCRYPT, &hdev->flags))
897 conn->link_mode |= HCI_LM_ENCRYPT;
898
899 /* Get remote features */
900 if (conn->type == ACL_LINK) {
901 struct hci_cp_read_remote_features cp;
902 cp.handle = ev->handle;
903 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
904 sizeof(cp), &cp);
905 }
906
907 /* Set packet type for incoming connection */
908 if (!conn->out && hdev->hci_ver < 3) {
909 struct hci_cp_change_conn_ptype cp;
910 cp.handle = ev->handle;
911 cp.pkt_type = cpu_to_le16(conn->pkt_type);
912 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE,
913 sizeof(cp), &cp);
914 }
915 } else
916 conn->state = BT_CLOSED;
917
918 if (conn->type == ACL_LINK) {
919 struct hci_conn *sco = conn->link;
920 if (sco) {
921 if (!ev->status) {
922 if (lmp_esco_capable(hdev))
923 hci_setup_sync(sco, conn->handle);
924 else
925 hci_add_sco(sco, conn->handle);
926 } else {
927 hci_proto_connect_cfm(sco, ev->status);
928 hci_conn_del(sco);
929 }
930 }
931 }
932
933 if (ev->status) {
934 hci_proto_connect_cfm(conn, ev->status);
935 hci_conn_del(conn);
936 } else if (ev->link_type != ACL_LINK)
937 hci_proto_connect_cfm(conn, ev->status);
938
939 unlock:
940 hci_dev_unlock(hdev);
941
942 hci_conn_check_pending(hdev);
943 }
944
945 static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
946 {
947 struct hci_ev_conn_request *ev = (void *) skb->data;
948 int mask = hdev->link_mode;
949
950 BT_DBG("%s bdaddr %s type 0x%x", hdev->name,
951 batostr(&ev->bdaddr), ev->link_type);
952
953 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
954
955 if (mask & HCI_LM_ACCEPT) {
956 /* Connection accepted */
957 struct inquiry_entry *ie;
958 struct hci_conn *conn;
959
960 hci_dev_lock(hdev);
961
962 if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr)))
963 memcpy(ie->data.dev_class, ev->dev_class, 3);
964
965 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
966 if (!conn) {
967 if (!(conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr))) {
968 BT_ERR("No memmory for new connection");
969 hci_dev_unlock(hdev);
970 return;
971 }
972 }
973
974 memcpy(conn->dev_class, ev->dev_class, 3);
975 conn->state = BT_CONNECT;
976
977 hci_dev_unlock(hdev);
978
979 if (ev->link_type == ACL_LINK || !lmp_esco_capable(hdev)) {
980 struct hci_cp_accept_conn_req cp;
981
982 bacpy(&cp.bdaddr, &ev->bdaddr);
983
984 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
985 cp.role = 0x00; /* Become master */
986 else
987 cp.role = 0x01; /* Remain slave */
988
989 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ,
990 sizeof(cp), &cp);
991 } else {
992 struct hci_cp_accept_sync_conn_req cp;
993
994 bacpy(&cp.bdaddr, &ev->bdaddr);
995 cp.pkt_type = cpu_to_le16(conn->pkt_type);
996
997 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
998 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
999 cp.max_latency = cpu_to_le16(0xffff);
1000 cp.content_format = cpu_to_le16(hdev->voice_setting);
1001 cp.retrans_effort = 0xff;
1002
1003 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
1004 sizeof(cp), &cp);
1005 }
1006 } else {
1007 /* Connection rejected */
1008 struct hci_cp_reject_conn_req cp;
1009
1010 bacpy(&cp.bdaddr, &ev->bdaddr);
1011 cp.reason = 0x0f;
1012 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
1013 }
1014 }
1015
1016 static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1017 {
1018 struct hci_ev_disconn_complete *ev = (void *) skb->data;
1019 struct hci_conn *conn;
1020
1021 BT_DBG("%s status %d", hdev->name, ev->status);
1022
1023 if (ev->status)
1024 return;
1025
1026 hci_dev_lock(hdev);
1027
1028 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1029 if (conn) {
1030 conn->state = BT_CLOSED;
1031
1032 hci_proto_disconn_cfm(conn, ev->reason);
1033 hci_conn_del(conn);
1034 }
1035
1036 hci_dev_unlock(hdev);
1037 }
1038
1039 static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1040 {
1041 struct hci_ev_auth_complete *ev = (void *) skb->data;
1042 struct hci_conn *conn;
1043
1044 BT_DBG("%s status %d", hdev->name, ev->status);
1045
1046 hci_dev_lock(hdev);
1047
1048 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1049 if (conn) {
1050 if (!ev->status)
1051 conn->link_mode |= HCI_LM_AUTH;
1052
1053 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
1054
1055 if (conn->state == BT_CONFIG) {
1056 if (!ev->status && hdev->ssp_mode > 0 &&
1057 conn->ssp_mode > 0) {
1058 struct hci_cp_set_conn_encrypt cp;
1059 cp.handle = ev->handle;
1060 cp.encrypt = 0x01;
1061 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT,
1062 sizeof(cp), &cp);
1063 } else {
1064 conn->state = BT_CONNECTED;
1065 hci_proto_connect_cfm(conn, ev->status);
1066 hci_conn_put(conn);
1067 }
1068 } else {
1069 hci_auth_cfm(conn, ev->status);
1070
1071 hci_conn_hold(conn);
1072 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
1073 hci_conn_put(conn);
1074 }
1075
1076 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
1077 if (!ev->status) {
1078 struct hci_cp_set_conn_encrypt cp;
1079 cp.handle = ev->handle;
1080 cp.encrypt = 0x01;
1081 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT,
1082 sizeof(cp), &cp);
1083 } else {
1084 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
1085 hci_encrypt_cfm(conn, ev->status, 0x00);
1086 }
1087 }
1088 }
1089
1090 hci_dev_unlock(hdev);
1091 }
1092
1093 static inline void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
1094 {
1095 BT_DBG("%s", hdev->name);
1096
1097 hci_conn_check_pending(hdev);
1098 }
1099
1100 static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
1101 {
1102 struct hci_ev_encrypt_change *ev = (void *) skb->data;
1103 struct hci_conn *conn;
1104
1105 BT_DBG("%s status %d", hdev->name, ev->status);
1106
1107 hci_dev_lock(hdev);
1108
1109 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1110 if (conn) {
1111 if (!ev->status) {
1112 if (ev->encrypt) {
1113 /* Encryption implies authentication */
1114 conn->link_mode |= HCI_LM_AUTH;
1115 conn->link_mode |= HCI_LM_ENCRYPT;
1116 } else
1117 conn->link_mode &= ~HCI_LM_ENCRYPT;
1118 }
1119
1120 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
1121
1122 if (conn->state == BT_CONFIG) {
1123 if (!ev->status)
1124 conn->state = BT_CONNECTED;
1125
1126 hci_proto_connect_cfm(conn, ev->status);
1127 hci_conn_put(conn);
1128 } else
1129 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
1130 }
1131
1132 hci_dev_unlock(hdev);
1133 }
1134
1135 static inline void hci_change_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1136 {
1137 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
1138 struct hci_conn *conn;
1139
1140 BT_DBG("%s status %d", hdev->name, ev->status);
1141
1142 hci_dev_lock(hdev);
1143
1144 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1145 if (conn) {
1146 if (!ev->status)
1147 conn->link_mode |= HCI_LM_SECURE;
1148
1149 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
1150
1151 hci_key_change_cfm(conn, ev->status);
1152 }
1153
1154 hci_dev_unlock(hdev);
1155 }
1156
1157 static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
1158 {
1159 struct hci_ev_remote_features *ev = (void *) skb->data;
1160 struct hci_conn *conn;
1161
1162 BT_DBG("%s status %d", hdev->name, ev->status);
1163
1164 hci_dev_lock(hdev);
1165
1166 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1167 if (conn) {
1168 if (!ev->status)
1169 memcpy(conn->features, ev->features, 8);
1170
1171 if (conn->state == BT_CONFIG) {
1172 if (!ev->status && lmp_ssp_capable(hdev) &&
1173 lmp_ssp_capable(conn)) {
1174 struct hci_cp_read_remote_ext_features cp;
1175 cp.handle = ev->handle;
1176 cp.page = 0x01;
1177 hci_send_cmd(hdev,
1178 HCI_OP_READ_REMOTE_EXT_FEATURES,
1179 sizeof(cp), &cp);
1180 } else {
1181 conn->state = BT_CONNECTED;
1182 hci_proto_connect_cfm(conn, ev->status);
1183 hci_conn_put(conn);
1184 }
1185 }
1186 }
1187
1188 hci_dev_unlock(hdev);
1189 }
1190
1191 static inline void hci_remote_version_evt(struct hci_dev *hdev, struct sk_buff *skb)
1192 {
1193 BT_DBG("%s", hdev->name);
1194 }
1195
1196 static inline void hci_qos_setup_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1197 {
1198 BT_DBG("%s", hdev->name);
1199 }
1200
1201 static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1202 {
1203 struct hci_ev_cmd_complete *ev = (void *) skb->data;
1204 __u16 opcode;
1205
1206 skb_pull(skb, sizeof(*ev));
1207
1208 opcode = __le16_to_cpu(ev->opcode);
1209
1210 switch (opcode) {
1211 case HCI_OP_INQUIRY_CANCEL:
1212 hci_cc_inquiry_cancel(hdev, skb);
1213 break;
1214
1215 case HCI_OP_EXIT_PERIODIC_INQ:
1216 hci_cc_exit_periodic_inq(hdev, skb);
1217 break;
1218
1219 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
1220 hci_cc_remote_name_req_cancel(hdev, skb);
1221 break;
1222
1223 case HCI_OP_ROLE_DISCOVERY:
1224 hci_cc_role_discovery(hdev, skb);
1225 break;
1226
1227 case HCI_OP_READ_LINK_POLICY:
1228 hci_cc_read_link_policy(hdev, skb);
1229 break;
1230
1231 case HCI_OP_WRITE_LINK_POLICY:
1232 hci_cc_write_link_policy(hdev, skb);
1233 break;
1234
1235 case HCI_OP_READ_DEF_LINK_POLICY:
1236 hci_cc_read_def_link_policy(hdev, skb);
1237 break;
1238
1239 case HCI_OP_WRITE_DEF_LINK_POLICY:
1240 hci_cc_write_def_link_policy(hdev, skb);
1241 break;
1242
1243 case HCI_OP_RESET:
1244 hci_cc_reset(hdev, skb);
1245 break;
1246
1247 case HCI_OP_WRITE_LOCAL_NAME:
1248 hci_cc_write_local_name(hdev, skb);
1249 break;
1250
1251 case HCI_OP_READ_LOCAL_NAME:
1252 hci_cc_read_local_name(hdev, skb);
1253 break;
1254
1255 case HCI_OP_WRITE_AUTH_ENABLE:
1256 hci_cc_write_auth_enable(hdev, skb);
1257 break;
1258
1259 case HCI_OP_WRITE_ENCRYPT_MODE:
1260 hci_cc_write_encrypt_mode(hdev, skb);
1261 break;
1262
1263 case HCI_OP_WRITE_SCAN_ENABLE:
1264 hci_cc_write_scan_enable(hdev, skb);
1265 break;
1266
1267 case HCI_OP_READ_CLASS_OF_DEV:
1268 hci_cc_read_class_of_dev(hdev, skb);
1269 break;
1270
1271 case HCI_OP_WRITE_CLASS_OF_DEV:
1272 hci_cc_write_class_of_dev(hdev, skb);
1273 break;
1274
1275 case HCI_OP_READ_VOICE_SETTING:
1276 hci_cc_read_voice_setting(hdev, skb);
1277 break;
1278
1279 case HCI_OP_WRITE_VOICE_SETTING:
1280 hci_cc_write_voice_setting(hdev, skb);
1281 break;
1282
1283 case HCI_OP_HOST_BUFFER_SIZE:
1284 hci_cc_host_buffer_size(hdev, skb);
1285 break;
1286
1287 case HCI_OP_READ_SSP_MODE:
1288 hci_cc_read_ssp_mode(hdev, skb);
1289 break;
1290
1291 case HCI_OP_WRITE_SSP_MODE:
1292 hci_cc_write_ssp_mode(hdev, skb);
1293 break;
1294
1295 case HCI_OP_READ_LOCAL_VERSION:
1296 hci_cc_read_local_version(hdev, skb);
1297 break;
1298
1299 case HCI_OP_READ_LOCAL_COMMANDS:
1300 hci_cc_read_local_commands(hdev, skb);
1301 break;
1302
1303 case HCI_OP_READ_LOCAL_FEATURES:
1304 hci_cc_read_local_features(hdev, skb);
1305 break;
1306
1307 case HCI_OP_READ_BUFFER_SIZE:
1308 hci_cc_read_buffer_size(hdev, skb);
1309 break;
1310
1311 case HCI_OP_READ_BD_ADDR:
1312 hci_cc_read_bd_addr(hdev, skb);
1313 break;
1314
1315 default:
1316 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
1317 break;
1318 }
1319
1320 if (ev->ncmd) {
1321 atomic_set(&hdev->cmd_cnt, 1);
1322 if (!skb_queue_empty(&hdev->cmd_q))
1323 hci_sched_cmd(hdev);
1324 }
1325 }
1326
1327 static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
1328 {
1329 struct hci_ev_cmd_status *ev = (void *) skb->data;
1330 __u16 opcode;
1331
1332 skb_pull(skb, sizeof(*ev));
1333
1334 opcode = __le16_to_cpu(ev->opcode);
1335
1336 switch (opcode) {
1337 case HCI_OP_INQUIRY:
1338 hci_cs_inquiry(hdev, ev->status);
1339 break;
1340
1341 case HCI_OP_CREATE_CONN:
1342 hci_cs_create_conn(hdev, ev->status);
1343 break;
1344
1345 case HCI_OP_ADD_SCO:
1346 hci_cs_add_sco(hdev, ev->status);
1347 break;
1348
1349 case HCI_OP_AUTH_REQUESTED:
1350 hci_cs_auth_requested(hdev, ev->status);
1351 break;
1352
1353 case HCI_OP_SET_CONN_ENCRYPT:
1354 hci_cs_set_conn_encrypt(hdev, ev->status);
1355 break;
1356
1357 case HCI_OP_REMOTE_NAME_REQ:
1358 hci_cs_remote_name_req(hdev, ev->status);
1359 break;
1360
1361 case HCI_OP_READ_REMOTE_FEATURES:
1362 hci_cs_read_remote_features(hdev, ev->status);
1363 break;
1364
1365 case HCI_OP_READ_REMOTE_EXT_FEATURES:
1366 hci_cs_read_remote_ext_features(hdev, ev->status);
1367 break;
1368
1369 case HCI_OP_SETUP_SYNC_CONN:
1370 hci_cs_setup_sync_conn(hdev, ev->status);
1371 break;
1372
1373 case HCI_OP_SNIFF_MODE:
1374 hci_cs_sniff_mode(hdev, ev->status);
1375 break;
1376
1377 case HCI_OP_EXIT_SNIFF_MODE:
1378 hci_cs_exit_sniff_mode(hdev, ev->status);
1379 break;
1380
1381 default:
1382 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
1383 break;
1384 }
1385
1386 if (ev->ncmd) {
1387 atomic_set(&hdev->cmd_cnt, 1);
1388 if (!skb_queue_empty(&hdev->cmd_q))
1389 hci_sched_cmd(hdev);
1390 }
1391 }
1392
1393 static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
1394 {
1395 struct hci_ev_role_change *ev = (void *) skb->data;
1396 struct hci_conn *conn;
1397
1398 BT_DBG("%s status %d", hdev->name, ev->status);
1399
1400 hci_dev_lock(hdev);
1401
1402 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1403 if (conn) {
1404 if (!ev->status) {
1405 if (ev->role)
1406 conn->link_mode &= ~HCI_LM_MASTER;
1407 else
1408 conn->link_mode |= HCI_LM_MASTER;
1409 }
1410
1411 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->pend);
1412
1413 hci_role_switch_cfm(conn, ev->status, ev->role);
1414 }
1415
1416 hci_dev_unlock(hdev);
1417 }
1418
1419 static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
1420 {
1421 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
1422 __le16 *ptr;
1423 int i;
1424
1425 skb_pull(skb, sizeof(*ev));
1426
1427 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
1428
1429 if (skb->len < ev->num_hndl * 4) {
1430 BT_DBG("%s bad parameters", hdev->name);
1431 return;
1432 }
1433
1434 tasklet_disable(&hdev->tx_task);
1435
1436 for (i = 0, ptr = (__le16 *) skb->data; i < ev->num_hndl; i++) {
1437 struct hci_conn *conn;
1438 __u16 handle, count;
1439
1440 handle = get_unaligned_le16(ptr++);
1441 count = get_unaligned_le16(ptr++);
1442
1443 conn = hci_conn_hash_lookup_handle(hdev, handle);
1444 if (conn) {
1445 conn->sent -= count;
1446
1447 if (conn->type == ACL_LINK) {
1448 if ((hdev->acl_cnt += count) > hdev->acl_pkts)
1449 hdev->acl_cnt = hdev->acl_pkts;
1450 } else {
1451 if ((hdev->sco_cnt += count) > hdev->sco_pkts)
1452 hdev->sco_cnt = hdev->sco_pkts;
1453 }
1454 }
1455 }
1456
1457 hci_sched_tx(hdev);
1458
1459 tasklet_enable(&hdev->tx_task);
1460 }
1461
1462 static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
1463 {
1464 struct hci_ev_mode_change *ev = (void *) skb->data;
1465 struct hci_conn *conn;
1466
1467 BT_DBG("%s status %d", hdev->name, ev->status);
1468
1469 hci_dev_lock(hdev);
1470
1471 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1472 if (conn) {
1473 conn->mode = ev->mode;
1474 conn->interval = __le16_to_cpu(ev->interval);
1475
1476 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
1477 if (conn->mode == HCI_CM_ACTIVE)
1478 conn->power_save = 1;
1479 else
1480 conn->power_save = 0;
1481 }
1482 }
1483
1484 hci_dev_unlock(hdev);
1485 }
1486
1487 static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1488 {
1489 struct hci_ev_pin_code_req *ev = (void *) skb->data;
1490 struct hci_conn *conn;
1491
1492 BT_DBG("%s", hdev->name);
1493
1494 hci_dev_lock(hdev);
1495
1496 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1497 if (conn && conn->state == BT_CONNECTED) {
1498 hci_conn_hold(conn);
1499 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
1500 hci_conn_put(conn);
1501 }
1502
1503 hci_dev_unlock(hdev);
1504 }
1505
1506 static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1507 {
1508 BT_DBG("%s", hdev->name);
1509 }
1510
1511 static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
1512 {
1513 struct hci_ev_link_key_notify *ev = (void *) skb->data;
1514 struct hci_conn *conn;
1515
1516 BT_DBG("%s", hdev->name);
1517
1518 hci_dev_lock(hdev);
1519
1520 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1521 if (conn) {
1522 hci_conn_hold(conn);
1523 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
1524 hci_conn_put(conn);
1525 }
1526
1527 hci_dev_unlock(hdev);
1528 }
1529
1530 static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
1531 {
1532 struct hci_ev_clock_offset *ev = (void *) skb->data;
1533 struct hci_conn *conn;
1534
1535 BT_DBG("%s status %d", hdev->name, ev->status);
1536
1537 hci_dev_lock(hdev);
1538
1539 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1540 if (conn && !ev->status) {
1541 struct inquiry_entry *ie;
1542
1543 if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
1544 ie->data.clock_offset = ev->clock_offset;
1545 ie->timestamp = jiffies;
1546 }
1547 }
1548
1549 hci_dev_unlock(hdev);
1550 }
1551
1552 static inline void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
1553 {
1554 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
1555 struct hci_conn *conn;
1556
1557 BT_DBG("%s status %d", hdev->name, ev->status);
1558
1559 hci_dev_lock(hdev);
1560
1561 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1562 if (conn && !ev->status)
1563 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
1564
1565 hci_dev_unlock(hdev);
1566 }
1567
1568 static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
1569 {
1570 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
1571 struct inquiry_entry *ie;
1572
1573 BT_DBG("%s", hdev->name);
1574
1575 hci_dev_lock(hdev);
1576
1577 if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr))) {
1578 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
1579 ie->timestamp = jiffies;
1580 }
1581
1582 hci_dev_unlock(hdev);
1583 }
1584
1585 static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
1586 {
1587 struct inquiry_data data;
1588 int num_rsp = *((__u8 *) skb->data);
1589
1590 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1591
1592 if (!num_rsp)
1593 return;
1594
1595 hci_dev_lock(hdev);
1596
1597 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
1598 struct inquiry_info_with_rssi_and_pscan_mode *info = (void *) (skb->data + 1);
1599
1600 for (; num_rsp; num_rsp--) {
1601 bacpy(&data.bdaddr, &info->bdaddr);
1602 data.pscan_rep_mode = info->pscan_rep_mode;
1603 data.pscan_period_mode = info->pscan_period_mode;
1604 data.pscan_mode = info->pscan_mode;
1605 memcpy(data.dev_class, info->dev_class, 3);
1606 data.clock_offset = info->clock_offset;
1607 data.rssi = info->rssi;
1608 data.ssp_mode = 0x00;
1609 info++;
1610 hci_inquiry_cache_update(hdev, &data);
1611 }
1612 } else {
1613 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
1614
1615 for (; num_rsp; num_rsp--) {
1616 bacpy(&data.bdaddr, &info->bdaddr);
1617 data.pscan_rep_mode = info->pscan_rep_mode;
1618 data.pscan_period_mode = info->pscan_period_mode;
1619 data.pscan_mode = 0x00;
1620 memcpy(data.dev_class, info->dev_class, 3);
1621 data.clock_offset = info->clock_offset;
1622 data.rssi = info->rssi;
1623 data.ssp_mode = 0x00;
1624 info++;
1625 hci_inquiry_cache_update(hdev, &data);
1626 }
1627 }
1628
1629 hci_dev_unlock(hdev);
1630 }
1631
1632 static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
1633 {
1634 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
1635 struct hci_conn *conn;
1636
1637 BT_DBG("%s", hdev->name);
1638
1639 hci_dev_lock(hdev);
1640
1641 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1642 if (conn) {
1643 if (!ev->status && ev->page == 0x01) {
1644 struct inquiry_entry *ie;
1645
1646 if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst)))
1647 ie->data.ssp_mode = (ev->features[0] & 0x01);
1648
1649 conn->ssp_mode = (ev->features[0] & 0x01);
1650 }
1651
1652 if (conn->state == BT_CONFIG) {
1653 if (!ev->status && hdev->ssp_mode > 0 &&
1654 conn->ssp_mode > 0 && conn->out &&
1655 conn->sec_level != BT_SECURITY_SDP) {
1656 struct hci_cp_auth_requested cp;
1657 cp.handle = ev->handle;
1658 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
1659 sizeof(cp), &cp);
1660 } else {
1661 conn->state = BT_CONNECTED;
1662 hci_proto_connect_cfm(conn, ev->status);
1663 hci_conn_put(conn);
1664 }
1665 }
1666 }
1667
1668 hci_dev_unlock(hdev);
1669 }
1670
1671 static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1672 {
1673 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
1674 struct hci_conn *conn;
1675
1676 BT_DBG("%s status %d", hdev->name, ev->status);
1677
1678 hci_dev_lock(hdev);
1679
1680 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
1681 if (!conn) {
1682 if (ev->link_type == ESCO_LINK)
1683 goto unlock;
1684
1685 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
1686 if (!conn)
1687 goto unlock;
1688
1689 conn->type = SCO_LINK;
1690 }
1691
1692 switch (ev->status) {
1693 case 0x00:
1694 conn->handle = __le16_to_cpu(ev->handle);
1695 conn->state = BT_CONNECTED;
1696
1697 hci_conn_hold_device(conn);
1698 hci_conn_add_sysfs(conn);
1699 break;
1700
1701 case 0x1c: /* SCO interval rejected */
1702 case 0x1f: /* Unspecified error */
1703 if (conn->out && conn->attempt < 2) {
1704 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
1705 (hdev->esco_type & EDR_ESCO_MASK);
1706 hci_setup_sync(conn, conn->link->handle);
1707 goto unlock;
1708 }
1709 /* fall through */
1710
1711 default:
1712 conn->state = BT_CLOSED;
1713 break;
1714 }
1715
1716 hci_proto_connect_cfm(conn, ev->status);
1717 if (ev->status)
1718 hci_conn_del(conn);
1719
1720 unlock:
1721 hci_dev_unlock(hdev);
1722 }
1723
1724 static inline void hci_sync_conn_changed_evt(struct hci_dev *hdev, struct sk_buff *skb)
1725 {
1726 BT_DBG("%s", hdev->name);
1727 }
1728
1729 static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
1730 {
1731 struct hci_ev_sniff_subrate *ev = (void *) skb->data;
1732 struct hci_conn *conn;
1733
1734 BT_DBG("%s status %d", hdev->name, ev->status);
1735
1736 hci_dev_lock(hdev);
1737
1738 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1739 if (conn) {
1740 }
1741
1742 hci_dev_unlock(hdev);
1743 }
1744
1745 static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
1746 {
1747 struct inquiry_data data;
1748 struct extended_inquiry_info *info = (void *) (skb->data + 1);
1749 int num_rsp = *((__u8 *) skb->data);
1750
1751 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1752
1753 if (!num_rsp)
1754 return;
1755
1756 hci_dev_lock(hdev);
1757
1758 for (; num_rsp; num_rsp--) {
1759 bacpy(&data.bdaddr, &info->bdaddr);
1760 data.pscan_rep_mode = info->pscan_rep_mode;
1761 data.pscan_period_mode = info->pscan_period_mode;
1762 data.pscan_mode = 0x00;
1763 memcpy(data.dev_class, info->dev_class, 3);
1764 data.clock_offset = info->clock_offset;
1765 data.rssi = info->rssi;
1766 data.ssp_mode = 0x01;
1767 info++;
1768 hci_inquiry_cache_update(hdev, &data);
1769 }
1770
1771 hci_dev_unlock(hdev);
1772 }
1773
1774 static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1775 {
1776 struct hci_ev_io_capa_request *ev = (void *) skb->data;
1777 struct hci_conn *conn;
1778
1779 BT_DBG("%s", hdev->name);
1780
1781 hci_dev_lock(hdev);
1782
1783 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1784 if (conn)
1785 hci_conn_hold(conn);
1786
1787 hci_dev_unlock(hdev);
1788 }
1789
1790 static inline void hci_simple_pair_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1791 {
1792 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
1793 struct hci_conn *conn;
1794
1795 BT_DBG("%s", hdev->name);
1796
1797 hci_dev_lock(hdev);
1798
1799 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1800 if (conn)
1801 hci_conn_put(conn);
1802
1803 hci_dev_unlock(hdev);
1804 }
1805
1806 static inline void hci_remote_host_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
1807 {
1808 struct hci_ev_remote_host_features *ev = (void *) skb->data;
1809 struct inquiry_entry *ie;
1810
1811 BT_DBG("%s", hdev->name);
1812
1813 hci_dev_lock(hdev);
1814
1815 if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr)))
1816 ie->data.ssp_mode = (ev->features[0] & 0x01);
1817
1818 hci_dev_unlock(hdev);
1819 }
1820
1821 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
1822 {
1823 struct hci_event_hdr *hdr = (void *) skb->data;
1824 __u8 event = hdr->evt;
1825
1826 skb_pull(skb, HCI_EVENT_HDR_SIZE);
1827
1828 switch (event) {
1829 case HCI_EV_INQUIRY_COMPLETE:
1830 hci_inquiry_complete_evt(hdev, skb);
1831 break;
1832
1833 case HCI_EV_INQUIRY_RESULT:
1834 hci_inquiry_result_evt(hdev, skb);
1835 break;
1836
1837 case HCI_EV_CONN_COMPLETE:
1838 hci_conn_complete_evt(hdev, skb);
1839 break;
1840
1841 case HCI_EV_CONN_REQUEST:
1842 hci_conn_request_evt(hdev, skb);
1843 break;
1844
1845 case HCI_EV_DISCONN_COMPLETE:
1846 hci_disconn_complete_evt(hdev, skb);
1847 break;
1848
1849 case HCI_EV_AUTH_COMPLETE:
1850 hci_auth_complete_evt(hdev, skb);
1851 break;
1852
1853 case HCI_EV_REMOTE_NAME:
1854 hci_remote_name_evt(hdev, skb);
1855 break;
1856
1857 case HCI_EV_ENCRYPT_CHANGE:
1858 hci_encrypt_change_evt(hdev, skb);
1859 break;
1860
1861 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
1862 hci_change_link_key_complete_evt(hdev, skb);
1863 break;
1864
1865 case HCI_EV_REMOTE_FEATURES:
1866 hci_remote_features_evt(hdev, skb);
1867 break;
1868
1869 case HCI_EV_REMOTE_VERSION:
1870 hci_remote_version_evt(hdev, skb);
1871 break;
1872
1873 case HCI_EV_QOS_SETUP_COMPLETE:
1874 hci_qos_setup_complete_evt(hdev, skb);
1875 break;
1876
1877 case HCI_EV_CMD_COMPLETE:
1878 hci_cmd_complete_evt(hdev, skb);
1879 break;
1880
1881 case HCI_EV_CMD_STATUS:
1882 hci_cmd_status_evt(hdev, skb);
1883 break;
1884
1885 case HCI_EV_ROLE_CHANGE:
1886 hci_role_change_evt(hdev, skb);
1887 break;
1888
1889 case HCI_EV_NUM_COMP_PKTS:
1890 hci_num_comp_pkts_evt(hdev, skb);
1891 break;
1892
1893 case HCI_EV_MODE_CHANGE:
1894 hci_mode_change_evt(hdev, skb);
1895 break;
1896
1897 case HCI_EV_PIN_CODE_REQ:
1898 hci_pin_code_request_evt(hdev, skb);
1899 break;
1900
1901 case HCI_EV_LINK_KEY_REQ:
1902 hci_link_key_request_evt(hdev, skb);
1903 break;
1904
1905 case HCI_EV_LINK_KEY_NOTIFY:
1906 hci_link_key_notify_evt(hdev, skb);
1907 break;
1908
1909 case HCI_EV_CLOCK_OFFSET:
1910 hci_clock_offset_evt(hdev, skb);
1911 break;
1912
1913 case HCI_EV_PKT_TYPE_CHANGE:
1914 hci_pkt_type_change_evt(hdev, skb);
1915 break;
1916
1917 case HCI_EV_PSCAN_REP_MODE:
1918 hci_pscan_rep_mode_evt(hdev, skb);
1919 break;
1920
1921 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
1922 hci_inquiry_result_with_rssi_evt(hdev, skb);
1923 break;
1924
1925 case HCI_EV_REMOTE_EXT_FEATURES:
1926 hci_remote_ext_features_evt(hdev, skb);
1927 break;
1928
1929 case HCI_EV_SYNC_CONN_COMPLETE:
1930 hci_sync_conn_complete_evt(hdev, skb);
1931 break;
1932
1933 case HCI_EV_SYNC_CONN_CHANGED:
1934 hci_sync_conn_changed_evt(hdev, skb);
1935 break;
1936
1937 case HCI_EV_SNIFF_SUBRATE:
1938 hci_sniff_subrate_evt(hdev, skb);
1939 break;
1940
1941 case HCI_EV_EXTENDED_INQUIRY_RESULT:
1942 hci_extended_inquiry_result_evt(hdev, skb);
1943 break;
1944
1945 case HCI_EV_IO_CAPA_REQUEST:
1946 hci_io_capa_request_evt(hdev, skb);
1947 break;
1948
1949 case HCI_EV_SIMPLE_PAIR_COMPLETE:
1950 hci_simple_pair_complete_evt(hdev, skb);
1951 break;
1952
1953 case HCI_EV_REMOTE_HOST_FEATURES:
1954 hci_remote_host_features_evt(hdev, skb);
1955 break;
1956
1957 default:
1958 BT_DBG("%s event 0x%x", hdev->name, event);
1959 break;
1960 }
1961
1962 kfree_skb(skb);
1963 hdev->stat.evt_rx++;
1964 }
1965
1966 /* Generate internal stack event */
1967 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
1968 {
1969 struct hci_event_hdr *hdr;
1970 struct hci_ev_stack_internal *ev;
1971 struct sk_buff *skb;
1972
1973 skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC);
1974 if (!skb)
1975 return;
1976
1977 hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE);
1978 hdr->evt = HCI_EV_STACK_INTERNAL;
1979 hdr->plen = sizeof(*ev) + dlen;
1980
1981 ev = (void *) skb_put(skb, sizeof(*ev) + dlen);
1982 ev->type = type;
1983 memcpy(ev->data, data, dlen);
1984
1985 bt_cb(skb)->incoming = 1;
1986 __net_timestamp(skb);
1987
1988 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1989 skb->dev = (void *) hdev;
1990 hci_send_to_sock(hdev, skb);
1991 kfree_skb(skb);
1992 }
1993
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