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1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
4 Copyright 2023 NXP
5
6 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License version 2 as
10 published by the Free Software Foundation;
11
12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20
21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
23 SOFTWARE IS DISCLAIMED.
24*/
25
26/* Bluetooth HCI event handling. */
27
28#include <asm/unaligned.h>
29#include <linux/crypto.h>
30#include <crypto/algapi.h>
31
32#include <net/bluetooth/bluetooth.h>
33#include <net/bluetooth/hci_core.h>
34#include <net/bluetooth/mgmt.h>
35
36#include "hci_request.h"
37#include "hci_debugfs.h"
38#include "hci_codec.h"
39#include "a2mp.h"
40#include "amp.h"
41#include "smp.h"
42#include "msft.h"
43#include "eir.h"
44
45#define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
46 "\x00\x00\x00\x00\x00\x00\x00\x00"
47
48#define secs_to_jiffies(_secs) msecs_to_jiffies((_secs) * 1000)
49
50/* Handle HCI Event packets */
51
52static void *hci_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
53 u8 ev, size_t len)
54{
55 void *data;
56
57 data = skb_pull_data(skb, len);
58 if (!data)
59 bt_dev_err(hdev, "Malformed Event: 0x%2.2x", ev);
60
61 return data;
62}
63
64static void *hci_cc_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
65 u16 op, size_t len)
66{
67 void *data;
68
69 data = skb_pull_data(skb, len);
70 if (!data)
71 bt_dev_err(hdev, "Malformed Command Complete: 0x%4.4x", op);
72
73 return data;
74}
75
76static void *hci_le_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
77 u8 ev, size_t len)
78{
79 void *data;
80
81 data = skb_pull_data(skb, len);
82 if (!data)
83 bt_dev_err(hdev, "Malformed LE Event: 0x%2.2x", ev);
84
85 return data;
86}
87
88static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data,
89 struct sk_buff *skb)
90{
91 struct hci_ev_status *rp = data;
92
93 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
94
95 /* It is possible that we receive Inquiry Complete event right
96 * before we receive Inquiry Cancel Command Complete event, in
97 * which case the latter event should have status of Command
98 * Disallowed (0x0c). This should not be treated as error, since
99 * we actually achieve what Inquiry Cancel wants to achieve,
100 * which is to end the last Inquiry session.
101 */
102 if (rp->status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) {
103 bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command");
104 rp->status = 0x00;
105 }
106
107 if (rp->status)
108 return rp->status;
109
110 clear_bit(HCI_INQUIRY, &hdev->flags);
111 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
112 wake_up_bit(&hdev->flags, HCI_INQUIRY);
113
114 hci_dev_lock(hdev);
115 /* Set discovery state to stopped if we're not doing LE active
116 * scanning.
117 */
118 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
119 hdev->le_scan_type != LE_SCAN_ACTIVE)
120 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
121 hci_dev_unlock(hdev);
122
123 hci_conn_check_pending(hdev);
124
125 return rp->status;
126}
127
128static u8 hci_cc_periodic_inq(struct hci_dev *hdev, void *data,
129 struct sk_buff *skb)
130{
131 struct hci_ev_status *rp = data;
132
133 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
134
135 if (rp->status)
136 return rp->status;
137
138 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
139
140 return rp->status;
141}
142
143static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data,
144 struct sk_buff *skb)
145{
146 struct hci_ev_status *rp = data;
147
148 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
149
150 if (rp->status)
151 return rp->status;
152
153 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
154
155 hci_conn_check_pending(hdev);
156
157 return rp->status;
158}
159
160static u8 hci_cc_remote_name_req_cancel(struct hci_dev *hdev, void *data,
161 struct sk_buff *skb)
162{
163 struct hci_ev_status *rp = data;
164
165 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
166
167 return rp->status;
168}
169
170static u8 hci_cc_role_discovery(struct hci_dev *hdev, void *data,
171 struct sk_buff *skb)
172{
173 struct hci_rp_role_discovery *rp = data;
174 struct hci_conn *conn;
175
176 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
177
178 if (rp->status)
179 return rp->status;
180
181 hci_dev_lock(hdev);
182
183 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
184 if (conn)
185 conn->role = rp->role;
186
187 hci_dev_unlock(hdev);
188
189 return rp->status;
190}
191
192static u8 hci_cc_read_link_policy(struct hci_dev *hdev, void *data,
193 struct sk_buff *skb)
194{
195 struct hci_rp_read_link_policy *rp = data;
196 struct hci_conn *conn;
197
198 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
199
200 if (rp->status)
201 return rp->status;
202
203 hci_dev_lock(hdev);
204
205 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
206 if (conn)
207 conn->link_policy = __le16_to_cpu(rp->policy);
208
209 hci_dev_unlock(hdev);
210
211 return rp->status;
212}
213
214static u8 hci_cc_write_link_policy(struct hci_dev *hdev, void *data,
215 struct sk_buff *skb)
216{
217 struct hci_rp_write_link_policy *rp = data;
218 struct hci_conn *conn;
219 void *sent;
220
221 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
222
223 if (rp->status)
224 return rp->status;
225
226 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
227 if (!sent)
228 return rp->status;
229
230 hci_dev_lock(hdev);
231
232 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
233 if (conn)
234 conn->link_policy = get_unaligned_le16(sent + 2);
235
236 hci_dev_unlock(hdev);
237
238 return rp->status;
239}
240
241static u8 hci_cc_read_def_link_policy(struct hci_dev *hdev, void *data,
242 struct sk_buff *skb)
243{
244 struct hci_rp_read_def_link_policy *rp = data;
245
246 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
247
248 if (rp->status)
249 return rp->status;
250
251 hdev->link_policy = __le16_to_cpu(rp->policy);
252
253 return rp->status;
254}
255
256static u8 hci_cc_write_def_link_policy(struct hci_dev *hdev, void *data,
257 struct sk_buff *skb)
258{
259 struct hci_ev_status *rp = data;
260 void *sent;
261
262 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
263
264 if (rp->status)
265 return rp->status;
266
267 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
268 if (!sent)
269 return rp->status;
270
271 hdev->link_policy = get_unaligned_le16(sent);
272
273 return rp->status;
274}
275
276static u8 hci_cc_reset(struct hci_dev *hdev, void *data, struct sk_buff *skb)
277{
278 struct hci_ev_status *rp = data;
279
280 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
281
282 clear_bit(HCI_RESET, &hdev->flags);
283
284 if (rp->status)
285 return rp->status;
286
287 /* Reset all non-persistent flags */
288 hci_dev_clear_volatile_flags(hdev);
289
290 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
291
292 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
293 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
294
295 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
296 hdev->adv_data_len = 0;
297
298 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
299 hdev->scan_rsp_data_len = 0;
300
301 hdev->le_scan_type = LE_SCAN_PASSIVE;
302
303 hdev->ssp_debug_mode = 0;
304
305 hci_bdaddr_list_clear(&hdev->le_accept_list);
306 hci_bdaddr_list_clear(&hdev->le_resolv_list);
307
308 return rp->status;
309}
310
311static u8 hci_cc_read_stored_link_key(struct hci_dev *hdev, void *data,
312 struct sk_buff *skb)
313{
314 struct hci_rp_read_stored_link_key *rp = data;
315 struct hci_cp_read_stored_link_key *sent;
316
317 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
318
319 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
320 if (!sent)
321 return rp->status;
322
323 if (!rp->status && sent->read_all == 0x01) {
324 hdev->stored_max_keys = le16_to_cpu(rp->max_keys);
325 hdev->stored_num_keys = le16_to_cpu(rp->num_keys);
326 }
327
328 return rp->status;
329}
330
331static u8 hci_cc_delete_stored_link_key(struct hci_dev *hdev, void *data,
332 struct sk_buff *skb)
333{
334 struct hci_rp_delete_stored_link_key *rp = data;
335 u16 num_keys;
336
337 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
338
339 if (rp->status)
340 return rp->status;
341
342 num_keys = le16_to_cpu(rp->num_keys);
343
344 if (num_keys <= hdev->stored_num_keys)
345 hdev->stored_num_keys -= num_keys;
346 else
347 hdev->stored_num_keys = 0;
348
349 return rp->status;
350}
351
352static u8 hci_cc_write_local_name(struct hci_dev *hdev, void *data,
353 struct sk_buff *skb)
354{
355 struct hci_ev_status *rp = data;
356 void *sent;
357
358 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
359
360 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
361 if (!sent)
362 return rp->status;
363
364 hci_dev_lock(hdev);
365
366 if (hci_dev_test_flag(hdev, HCI_MGMT))
367 mgmt_set_local_name_complete(hdev, sent, rp->status);
368 else if (!rp->status)
369 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
370
371 hci_dev_unlock(hdev);
372
373 return rp->status;
374}
375
376static u8 hci_cc_read_local_name(struct hci_dev *hdev, void *data,
377 struct sk_buff *skb)
378{
379 struct hci_rp_read_local_name *rp = data;
380
381 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
382
383 if (rp->status)
384 return rp->status;
385
386 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
387 hci_dev_test_flag(hdev, HCI_CONFIG))
388 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
389
390 return rp->status;
391}
392
393static u8 hci_cc_write_auth_enable(struct hci_dev *hdev, void *data,
394 struct sk_buff *skb)
395{
396 struct hci_ev_status *rp = data;
397 void *sent;
398
399 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
400
401 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
402 if (!sent)
403 return rp->status;
404
405 hci_dev_lock(hdev);
406
407 if (!rp->status) {
408 __u8 param = *((__u8 *) sent);
409
410 if (param == AUTH_ENABLED)
411 set_bit(HCI_AUTH, &hdev->flags);
412 else
413 clear_bit(HCI_AUTH, &hdev->flags);
414 }
415
416 if (hci_dev_test_flag(hdev, HCI_MGMT))
417 mgmt_auth_enable_complete(hdev, rp->status);
418
419 hci_dev_unlock(hdev);
420
421 return rp->status;
422}
423
424static u8 hci_cc_write_encrypt_mode(struct hci_dev *hdev, void *data,
425 struct sk_buff *skb)
426{
427 struct hci_ev_status *rp = data;
428 __u8 param;
429 void *sent;
430
431 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
432
433 if (rp->status)
434 return rp->status;
435
436 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
437 if (!sent)
438 return rp->status;
439
440 param = *((__u8 *) sent);
441
442 if (param)
443 set_bit(HCI_ENCRYPT, &hdev->flags);
444 else
445 clear_bit(HCI_ENCRYPT, &hdev->flags);
446
447 return rp->status;
448}
449
450static u8 hci_cc_write_scan_enable(struct hci_dev *hdev, void *data,
451 struct sk_buff *skb)
452{
453 struct hci_ev_status *rp = data;
454 __u8 param;
455 void *sent;
456
457 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
458
459 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
460 if (!sent)
461 return rp->status;
462
463 param = *((__u8 *) sent);
464
465 hci_dev_lock(hdev);
466
467 if (rp->status) {
468 hdev->discov_timeout = 0;
469 goto done;
470 }
471
472 if (param & SCAN_INQUIRY)
473 set_bit(HCI_ISCAN, &hdev->flags);
474 else
475 clear_bit(HCI_ISCAN, &hdev->flags);
476
477 if (param & SCAN_PAGE)
478 set_bit(HCI_PSCAN, &hdev->flags);
479 else
480 clear_bit(HCI_PSCAN, &hdev->flags);
481
482done:
483 hci_dev_unlock(hdev);
484
485 return rp->status;
486}
487
488static u8 hci_cc_set_event_filter(struct hci_dev *hdev, void *data,
489 struct sk_buff *skb)
490{
491 struct hci_ev_status *rp = data;
492 struct hci_cp_set_event_filter *cp;
493 void *sent;
494
495 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
496
497 if (rp->status)
498 return rp->status;
499
500 sent = hci_sent_cmd_data(hdev, HCI_OP_SET_EVENT_FLT);
501 if (!sent)
502 return rp->status;
503
504 cp = (struct hci_cp_set_event_filter *)sent;
505
506 if (cp->flt_type == HCI_FLT_CLEAR_ALL)
507 hci_dev_clear_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
508 else
509 hci_dev_set_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
510
511 return rp->status;
512}
513
514static u8 hci_cc_read_class_of_dev(struct hci_dev *hdev, void *data,
515 struct sk_buff *skb)
516{
517 struct hci_rp_read_class_of_dev *rp = data;
518
519 if (WARN_ON(!hdev))
520 return HCI_ERROR_UNSPECIFIED;
521
522 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
523
524 if (rp->status)
525 return rp->status;
526
527 memcpy(hdev->dev_class, rp->dev_class, 3);
528
529 bt_dev_dbg(hdev, "class 0x%.2x%.2x%.2x", hdev->dev_class[2],
530 hdev->dev_class[1], hdev->dev_class[0]);
531
532 return rp->status;
533}
534
535static u8 hci_cc_write_class_of_dev(struct hci_dev *hdev, void *data,
536 struct sk_buff *skb)
537{
538 struct hci_ev_status *rp = data;
539 void *sent;
540
541 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
542
543 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
544 if (!sent)
545 return rp->status;
546
547 hci_dev_lock(hdev);
548
549 if (!rp->status)
550 memcpy(hdev->dev_class, sent, 3);
551
552 if (hci_dev_test_flag(hdev, HCI_MGMT))
553 mgmt_set_class_of_dev_complete(hdev, sent, rp->status);
554
555 hci_dev_unlock(hdev);
556
557 return rp->status;
558}
559
560static u8 hci_cc_read_voice_setting(struct hci_dev *hdev, void *data,
561 struct sk_buff *skb)
562{
563 struct hci_rp_read_voice_setting *rp = data;
564 __u16 setting;
565
566 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
567
568 if (rp->status)
569 return rp->status;
570
571 setting = __le16_to_cpu(rp->voice_setting);
572
573 if (hdev->voice_setting == setting)
574 return rp->status;
575
576 hdev->voice_setting = setting;
577
578 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
579
580 if (hdev->notify)
581 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
582
583 return rp->status;
584}
585
586static u8 hci_cc_write_voice_setting(struct hci_dev *hdev, void *data,
587 struct sk_buff *skb)
588{
589 struct hci_ev_status *rp = data;
590 __u16 setting;
591 void *sent;
592
593 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
594
595 if (rp->status)
596 return rp->status;
597
598 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
599 if (!sent)
600 return rp->status;
601
602 setting = get_unaligned_le16(sent);
603
604 if (hdev->voice_setting == setting)
605 return rp->status;
606
607 hdev->voice_setting = setting;
608
609 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
610
611 if (hdev->notify)
612 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
613
614 return rp->status;
615}
616
617static u8 hci_cc_read_num_supported_iac(struct hci_dev *hdev, void *data,
618 struct sk_buff *skb)
619{
620 struct hci_rp_read_num_supported_iac *rp = data;
621
622 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
623
624 if (rp->status)
625 return rp->status;
626
627 hdev->num_iac = rp->num_iac;
628
629 bt_dev_dbg(hdev, "num iac %d", hdev->num_iac);
630
631 return rp->status;
632}
633
634static u8 hci_cc_write_ssp_mode(struct hci_dev *hdev, void *data,
635 struct sk_buff *skb)
636{
637 struct hci_ev_status *rp = data;
638 struct hci_cp_write_ssp_mode *sent;
639
640 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
641
642 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
643 if (!sent)
644 return rp->status;
645
646 hci_dev_lock(hdev);
647
648 if (!rp->status) {
649 if (sent->mode)
650 hdev->features[1][0] |= LMP_HOST_SSP;
651 else
652 hdev->features[1][0] &= ~LMP_HOST_SSP;
653 }
654
655 if (!rp->status) {
656 if (sent->mode)
657 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
658 else
659 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
660 }
661
662 hci_dev_unlock(hdev);
663
664 return rp->status;
665}
666
667static u8 hci_cc_write_sc_support(struct hci_dev *hdev, void *data,
668 struct sk_buff *skb)
669{
670 struct hci_ev_status *rp = data;
671 struct hci_cp_write_sc_support *sent;
672
673 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
674
675 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
676 if (!sent)
677 return rp->status;
678
679 hci_dev_lock(hdev);
680
681 if (!rp->status) {
682 if (sent->support)
683 hdev->features[1][0] |= LMP_HOST_SC;
684 else
685 hdev->features[1][0] &= ~LMP_HOST_SC;
686 }
687
688 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !rp->status) {
689 if (sent->support)
690 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
691 else
692 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
693 }
694
695 hci_dev_unlock(hdev);
696
697 return rp->status;
698}
699
700static u8 hci_cc_read_local_version(struct hci_dev *hdev, void *data,
701 struct sk_buff *skb)
702{
703 struct hci_rp_read_local_version *rp = data;
704
705 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
706
707 if (rp->status)
708 return rp->status;
709
710 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
711 hci_dev_test_flag(hdev, HCI_CONFIG)) {
712 hdev->hci_ver = rp->hci_ver;
713 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
714 hdev->lmp_ver = rp->lmp_ver;
715 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
716 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
717 }
718
719 return rp->status;
720}
721
722static u8 hci_cc_read_enc_key_size(struct hci_dev *hdev, void *data,
723 struct sk_buff *skb)
724{
725 struct hci_rp_read_enc_key_size *rp = data;
726 struct hci_conn *conn;
727 u16 handle;
728 u8 status = rp->status;
729
730 bt_dev_dbg(hdev, "status 0x%2.2x", status);
731
732 handle = le16_to_cpu(rp->handle);
733
734 hci_dev_lock(hdev);
735
736 conn = hci_conn_hash_lookup_handle(hdev, handle);
737 if (!conn) {
738 status = 0xFF;
739 goto done;
740 }
741
742 /* While unexpected, the read_enc_key_size command may fail. The most
743 * secure approach is to then assume the key size is 0 to force a
744 * disconnection.
745 */
746 if (status) {
747 bt_dev_err(hdev, "failed to read key size for handle %u",
748 handle);
749 conn->enc_key_size = 0;
750 } else {
751 conn->enc_key_size = rp->key_size;
752 status = 0;
753
754 if (conn->enc_key_size < hdev->min_enc_key_size) {
755 /* As slave role, the conn->state has been set to
756 * BT_CONNECTED and l2cap conn req might not be received
757 * yet, at this moment the l2cap layer almost does
758 * nothing with the non-zero status.
759 * So we also clear encrypt related bits, and then the
760 * handler of l2cap conn req will get the right secure
761 * state at a later time.
762 */
763 status = HCI_ERROR_AUTH_FAILURE;
764 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
765 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
766 }
767 }
768
769 hci_encrypt_cfm(conn, status);
770
771done:
772 hci_dev_unlock(hdev);
773
774 return status;
775}
776
777static u8 hci_cc_read_local_commands(struct hci_dev *hdev, void *data,
778 struct sk_buff *skb)
779{
780 struct hci_rp_read_local_commands *rp = data;
781
782 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
783
784 if (rp->status)
785 return rp->status;
786
787 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
788 hci_dev_test_flag(hdev, HCI_CONFIG))
789 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
790
791 return rp->status;
792}
793
794static u8 hci_cc_read_auth_payload_timeout(struct hci_dev *hdev, void *data,
795 struct sk_buff *skb)
796{
797 struct hci_rp_read_auth_payload_to *rp = data;
798 struct hci_conn *conn;
799
800 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
801
802 if (rp->status)
803 return rp->status;
804
805 hci_dev_lock(hdev);
806
807 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
808 if (conn)
809 conn->auth_payload_timeout = __le16_to_cpu(rp->timeout);
810
811 hci_dev_unlock(hdev);
812
813 return rp->status;
814}
815
816static u8 hci_cc_write_auth_payload_timeout(struct hci_dev *hdev, void *data,
817 struct sk_buff *skb)
818{
819 struct hci_rp_write_auth_payload_to *rp = data;
820 struct hci_conn *conn;
821 void *sent;
822
823 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
824
825 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO);
826 if (!sent)
827 return rp->status;
828
829 hci_dev_lock(hdev);
830
831 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
832 if (!conn) {
833 rp->status = 0xff;
834 goto unlock;
835 }
836
837 if (!rp->status)
838 conn->auth_payload_timeout = get_unaligned_le16(sent + 2);
839
840unlock:
841 hci_dev_unlock(hdev);
842
843 return rp->status;
844}
845
846static u8 hci_cc_read_local_features(struct hci_dev *hdev, void *data,
847 struct sk_buff *skb)
848{
849 struct hci_rp_read_local_features *rp = data;
850
851 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
852
853 if (rp->status)
854 return rp->status;
855
856 memcpy(hdev->features, rp->features, 8);
857
858 /* Adjust default settings according to features
859 * supported by device. */
860
861 if (hdev->features[0][0] & LMP_3SLOT)
862 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
863
864 if (hdev->features[0][0] & LMP_5SLOT)
865 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
866
867 if (hdev->features[0][1] & LMP_HV2) {
868 hdev->pkt_type |= (HCI_HV2);
869 hdev->esco_type |= (ESCO_HV2);
870 }
871
872 if (hdev->features[0][1] & LMP_HV3) {
873 hdev->pkt_type |= (HCI_HV3);
874 hdev->esco_type |= (ESCO_HV3);
875 }
876
877 if (lmp_esco_capable(hdev))
878 hdev->esco_type |= (ESCO_EV3);
879
880 if (hdev->features[0][4] & LMP_EV4)
881 hdev->esco_type |= (ESCO_EV4);
882
883 if (hdev->features[0][4] & LMP_EV5)
884 hdev->esco_type |= (ESCO_EV5);
885
886 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
887 hdev->esco_type |= (ESCO_2EV3);
888
889 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
890 hdev->esco_type |= (ESCO_3EV3);
891
892 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
893 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
894
895 return rp->status;
896}
897
898static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data,
899 struct sk_buff *skb)
900{
901 struct hci_rp_read_local_ext_features *rp = data;
902
903 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
904
905 if (rp->status)
906 return rp->status;
907
908 if (hdev->max_page < rp->max_page) {
909 if (test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2,
910 &hdev->quirks))
911 bt_dev_warn(hdev, "broken local ext features page 2");
912 else
913 hdev->max_page = rp->max_page;
914 }
915
916 if (rp->page < HCI_MAX_PAGES)
917 memcpy(hdev->features[rp->page], rp->features, 8);
918
919 return rp->status;
920}
921
922static u8 hci_cc_read_flow_control_mode(struct hci_dev *hdev, void *data,
923 struct sk_buff *skb)
924{
925 struct hci_rp_read_flow_control_mode *rp = data;
926
927 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
928
929 if (rp->status)
930 return rp->status;
931
932 hdev->flow_ctl_mode = rp->mode;
933
934 return rp->status;
935}
936
937static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data,
938 struct sk_buff *skb)
939{
940 struct hci_rp_read_buffer_size *rp = data;
941
942 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
943
944 if (rp->status)
945 return rp->status;
946
947 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
948 hdev->sco_mtu = rp->sco_mtu;
949 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
950 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
951
952 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
953 hdev->sco_mtu = 64;
954 hdev->sco_pkts = 8;
955 }
956
957 hdev->acl_cnt = hdev->acl_pkts;
958 hdev->sco_cnt = hdev->sco_pkts;
959
960 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
961 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
962
963 return rp->status;
964}
965
966static u8 hci_cc_read_bd_addr(struct hci_dev *hdev, void *data,
967 struct sk_buff *skb)
968{
969 struct hci_rp_read_bd_addr *rp = data;
970
971 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
972
973 if (rp->status)
974 return rp->status;
975
976 if (test_bit(HCI_INIT, &hdev->flags))
977 bacpy(&hdev->bdaddr, &rp->bdaddr);
978
979 if (hci_dev_test_flag(hdev, HCI_SETUP))
980 bacpy(&hdev->setup_addr, &rp->bdaddr);
981
982 return rp->status;
983}
984
985static u8 hci_cc_read_local_pairing_opts(struct hci_dev *hdev, void *data,
986 struct sk_buff *skb)
987{
988 struct hci_rp_read_local_pairing_opts *rp = data;
989
990 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
991
992 if (rp->status)
993 return rp->status;
994
995 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
996 hci_dev_test_flag(hdev, HCI_CONFIG)) {
997 hdev->pairing_opts = rp->pairing_opts;
998 hdev->max_enc_key_size = rp->max_key_size;
999 }
1000
1001 return rp->status;
1002}
1003
1004static u8 hci_cc_read_page_scan_activity(struct hci_dev *hdev, void *data,
1005 struct sk_buff *skb)
1006{
1007 struct hci_rp_read_page_scan_activity *rp = data;
1008
1009 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1010
1011 if (rp->status)
1012 return rp->status;
1013
1014 if (test_bit(HCI_INIT, &hdev->flags)) {
1015 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
1016 hdev->page_scan_window = __le16_to_cpu(rp->window);
1017 }
1018
1019 return rp->status;
1020}
1021
1022static u8 hci_cc_write_page_scan_activity(struct hci_dev *hdev, void *data,
1023 struct sk_buff *skb)
1024{
1025 struct hci_ev_status *rp = data;
1026 struct hci_cp_write_page_scan_activity *sent;
1027
1028 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1029
1030 if (rp->status)
1031 return rp->status;
1032
1033 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
1034 if (!sent)
1035 return rp->status;
1036
1037 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
1038 hdev->page_scan_window = __le16_to_cpu(sent->window);
1039
1040 return rp->status;
1041}
1042
1043static u8 hci_cc_read_page_scan_type(struct hci_dev *hdev, void *data,
1044 struct sk_buff *skb)
1045{
1046 struct hci_rp_read_page_scan_type *rp = data;
1047
1048 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1049
1050 if (rp->status)
1051 return rp->status;
1052
1053 if (test_bit(HCI_INIT, &hdev->flags))
1054 hdev->page_scan_type = rp->type;
1055
1056 return rp->status;
1057}
1058
1059static u8 hci_cc_write_page_scan_type(struct hci_dev *hdev, void *data,
1060 struct sk_buff *skb)
1061{
1062 struct hci_ev_status *rp = data;
1063 u8 *type;
1064
1065 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1066
1067 if (rp->status)
1068 return rp->status;
1069
1070 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
1071 if (type)
1072 hdev->page_scan_type = *type;
1073
1074 return rp->status;
1075}
1076
1077static u8 hci_cc_read_data_block_size(struct hci_dev *hdev, void *data,
1078 struct sk_buff *skb)
1079{
1080 struct hci_rp_read_data_block_size *rp = data;
1081
1082 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1083
1084 if (rp->status)
1085 return rp->status;
1086
1087 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
1088 hdev->block_len = __le16_to_cpu(rp->block_len);
1089 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
1090
1091 hdev->block_cnt = hdev->num_blocks;
1092
1093 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
1094 hdev->block_cnt, hdev->block_len);
1095
1096 return rp->status;
1097}
1098
1099static u8 hci_cc_read_clock(struct hci_dev *hdev, void *data,
1100 struct sk_buff *skb)
1101{
1102 struct hci_rp_read_clock *rp = data;
1103 struct hci_cp_read_clock *cp;
1104 struct hci_conn *conn;
1105
1106 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1107
1108 if (rp->status)
1109 return rp->status;
1110
1111 hci_dev_lock(hdev);
1112
1113 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
1114 if (!cp)
1115 goto unlock;
1116
1117 if (cp->which == 0x00) {
1118 hdev->clock = le32_to_cpu(rp->clock);
1119 goto unlock;
1120 }
1121
1122 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1123 if (conn) {
1124 conn->clock = le32_to_cpu(rp->clock);
1125 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
1126 }
1127
1128unlock:
1129 hci_dev_unlock(hdev);
1130 return rp->status;
1131}
1132
1133static u8 hci_cc_read_local_amp_info(struct hci_dev *hdev, void *data,
1134 struct sk_buff *skb)
1135{
1136 struct hci_rp_read_local_amp_info *rp = data;
1137
1138 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1139
1140 if (rp->status)
1141 return rp->status;
1142
1143 hdev->amp_status = rp->amp_status;
1144 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
1145 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
1146 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
1147 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
1148 hdev->amp_type = rp->amp_type;
1149 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
1150 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
1151 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
1152 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
1153
1154 return rp->status;
1155}
1156
1157static u8 hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, void *data,
1158 struct sk_buff *skb)
1159{
1160 struct hci_rp_read_inq_rsp_tx_power *rp = data;
1161
1162 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1163
1164 if (rp->status)
1165 return rp->status;
1166
1167 hdev->inq_tx_power = rp->tx_power;
1168
1169 return rp->status;
1170}
1171
1172static u8 hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, void *data,
1173 struct sk_buff *skb)
1174{
1175 struct hci_rp_read_def_err_data_reporting *rp = data;
1176
1177 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1178
1179 if (rp->status)
1180 return rp->status;
1181
1182 hdev->err_data_reporting = rp->err_data_reporting;
1183
1184 return rp->status;
1185}
1186
1187static u8 hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, void *data,
1188 struct sk_buff *skb)
1189{
1190 struct hci_ev_status *rp = data;
1191 struct hci_cp_write_def_err_data_reporting *cp;
1192
1193 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1194
1195 if (rp->status)
1196 return rp->status;
1197
1198 cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING);
1199 if (!cp)
1200 return rp->status;
1201
1202 hdev->err_data_reporting = cp->err_data_reporting;
1203
1204 return rp->status;
1205}
1206
1207static u8 hci_cc_pin_code_reply(struct hci_dev *hdev, void *data,
1208 struct sk_buff *skb)
1209{
1210 struct hci_rp_pin_code_reply *rp = data;
1211 struct hci_cp_pin_code_reply *cp;
1212 struct hci_conn *conn;
1213
1214 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1215
1216 hci_dev_lock(hdev);
1217
1218 if (hci_dev_test_flag(hdev, HCI_MGMT))
1219 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
1220
1221 if (rp->status)
1222 goto unlock;
1223
1224 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
1225 if (!cp)
1226 goto unlock;
1227
1228 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1229 if (conn)
1230 conn->pin_length = cp->pin_len;
1231
1232unlock:
1233 hci_dev_unlock(hdev);
1234 return rp->status;
1235}
1236
1237static u8 hci_cc_pin_code_neg_reply(struct hci_dev *hdev, void *data,
1238 struct sk_buff *skb)
1239{
1240 struct hci_rp_pin_code_neg_reply *rp = data;
1241
1242 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1243
1244 hci_dev_lock(hdev);
1245
1246 if (hci_dev_test_flag(hdev, HCI_MGMT))
1247 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
1248 rp->status);
1249
1250 hci_dev_unlock(hdev);
1251
1252 return rp->status;
1253}
1254
1255static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data,
1256 struct sk_buff *skb)
1257{
1258 struct hci_rp_le_read_buffer_size *rp = data;
1259
1260 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1261
1262 if (rp->status)
1263 return rp->status;
1264
1265 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
1266 hdev->le_pkts = rp->le_max_pkt;
1267
1268 hdev->le_cnt = hdev->le_pkts;
1269
1270 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
1271
1272 return rp->status;
1273}
1274
1275static u8 hci_cc_le_read_local_features(struct hci_dev *hdev, void *data,
1276 struct sk_buff *skb)
1277{
1278 struct hci_rp_le_read_local_features *rp = data;
1279
1280 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1281
1282 if (rp->status)
1283 return rp->status;
1284
1285 memcpy(hdev->le_features, rp->features, 8);
1286
1287 return rp->status;
1288}
1289
1290static u8 hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, void *data,
1291 struct sk_buff *skb)
1292{
1293 struct hci_rp_le_read_adv_tx_power *rp = data;
1294
1295 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1296
1297 if (rp->status)
1298 return rp->status;
1299
1300 hdev->adv_tx_power = rp->tx_power;
1301
1302 return rp->status;
1303}
1304
1305static u8 hci_cc_user_confirm_reply(struct hci_dev *hdev, void *data,
1306 struct sk_buff *skb)
1307{
1308 struct hci_rp_user_confirm_reply *rp = data;
1309
1310 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1311
1312 hci_dev_lock(hdev);
1313
1314 if (hci_dev_test_flag(hdev, HCI_MGMT))
1315 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
1316 rp->status);
1317
1318 hci_dev_unlock(hdev);
1319
1320 return rp->status;
1321}
1322
1323static u8 hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, void *data,
1324 struct sk_buff *skb)
1325{
1326 struct hci_rp_user_confirm_reply *rp = data;
1327
1328 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1329
1330 hci_dev_lock(hdev);
1331
1332 if (hci_dev_test_flag(hdev, HCI_MGMT))
1333 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1334 ACL_LINK, 0, rp->status);
1335
1336 hci_dev_unlock(hdev);
1337
1338 return rp->status;
1339}
1340
1341static u8 hci_cc_user_passkey_reply(struct hci_dev *hdev, void *data,
1342 struct sk_buff *skb)
1343{
1344 struct hci_rp_user_confirm_reply *rp = data;
1345
1346 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1347
1348 hci_dev_lock(hdev);
1349
1350 if (hci_dev_test_flag(hdev, HCI_MGMT))
1351 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1352 0, rp->status);
1353
1354 hci_dev_unlock(hdev);
1355
1356 return rp->status;
1357}
1358
1359static u8 hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, void *data,
1360 struct sk_buff *skb)
1361{
1362 struct hci_rp_user_confirm_reply *rp = data;
1363
1364 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1365
1366 hci_dev_lock(hdev);
1367
1368 if (hci_dev_test_flag(hdev, HCI_MGMT))
1369 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1370 ACL_LINK, 0, rp->status);
1371
1372 hci_dev_unlock(hdev);
1373
1374 return rp->status;
1375}
1376
1377static u8 hci_cc_read_local_oob_data(struct hci_dev *hdev, void *data,
1378 struct sk_buff *skb)
1379{
1380 struct hci_rp_read_local_oob_data *rp = data;
1381
1382 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1383
1384 return rp->status;
1385}
1386
1387static u8 hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, void *data,
1388 struct sk_buff *skb)
1389{
1390 struct hci_rp_read_local_oob_ext_data *rp = data;
1391
1392 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1393
1394 return rp->status;
1395}
1396
1397static u8 hci_cc_le_set_random_addr(struct hci_dev *hdev, void *data,
1398 struct sk_buff *skb)
1399{
1400 struct hci_ev_status *rp = data;
1401 bdaddr_t *sent;
1402
1403 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1404
1405 if (rp->status)
1406 return rp->status;
1407
1408 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1409 if (!sent)
1410 return rp->status;
1411
1412 hci_dev_lock(hdev);
1413
1414 bacpy(&hdev->random_addr, sent);
1415
1416 if (!bacmp(&hdev->rpa, sent)) {
1417 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
1418 queue_delayed_work(hdev->workqueue, &hdev->rpa_expired,
1419 secs_to_jiffies(hdev->rpa_timeout));
1420 }
1421
1422 hci_dev_unlock(hdev);
1423
1424 return rp->status;
1425}
1426
1427static u8 hci_cc_le_set_default_phy(struct hci_dev *hdev, void *data,
1428 struct sk_buff *skb)
1429{
1430 struct hci_ev_status *rp = data;
1431 struct hci_cp_le_set_default_phy *cp;
1432
1433 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1434
1435 if (rp->status)
1436 return rp->status;
1437
1438 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1439 if (!cp)
1440 return rp->status;
1441
1442 hci_dev_lock(hdev);
1443
1444 hdev->le_tx_def_phys = cp->tx_phys;
1445 hdev->le_rx_def_phys = cp->rx_phys;
1446
1447 hci_dev_unlock(hdev);
1448
1449 return rp->status;
1450}
1451
1452static u8 hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, void *data,
1453 struct sk_buff *skb)
1454{
1455 struct hci_ev_status *rp = data;
1456 struct hci_cp_le_set_adv_set_rand_addr *cp;
1457 struct adv_info *adv;
1458
1459 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1460
1461 if (rp->status)
1462 return rp->status;
1463
1464 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
1465 /* Update only in case the adv instance since handle 0x00 shall be using
1466 * HCI_OP_LE_SET_RANDOM_ADDR since that allows both extended and
1467 * non-extended adverting.
1468 */
1469 if (!cp || !cp->handle)
1470 return rp->status;
1471
1472 hci_dev_lock(hdev);
1473
1474 adv = hci_find_adv_instance(hdev, cp->handle);
1475 if (adv) {
1476 bacpy(&adv->random_addr, &cp->bdaddr);
1477 if (!bacmp(&hdev->rpa, &cp->bdaddr)) {
1478 adv->rpa_expired = false;
1479 queue_delayed_work(hdev->workqueue,
1480 &adv->rpa_expired_cb,
1481 secs_to_jiffies(hdev->rpa_timeout));
1482 }
1483 }
1484
1485 hci_dev_unlock(hdev);
1486
1487 return rp->status;
1488}
1489
1490static u8 hci_cc_le_remove_adv_set(struct hci_dev *hdev, void *data,
1491 struct sk_buff *skb)
1492{
1493 struct hci_ev_status *rp = data;
1494 u8 *instance;
1495 int err;
1496
1497 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1498
1499 if (rp->status)
1500 return rp->status;
1501
1502 instance = hci_sent_cmd_data(hdev, HCI_OP_LE_REMOVE_ADV_SET);
1503 if (!instance)
1504 return rp->status;
1505
1506 hci_dev_lock(hdev);
1507
1508 err = hci_remove_adv_instance(hdev, *instance);
1509 if (!err)
1510 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd), hdev,
1511 *instance);
1512
1513 hci_dev_unlock(hdev);
1514
1515 return rp->status;
1516}
1517
1518static u8 hci_cc_le_clear_adv_sets(struct hci_dev *hdev, void *data,
1519 struct sk_buff *skb)
1520{
1521 struct hci_ev_status *rp = data;
1522 struct adv_info *adv, *n;
1523 int err;
1524
1525 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1526
1527 if (rp->status)
1528 return rp->status;
1529
1530 if (!hci_sent_cmd_data(hdev, HCI_OP_LE_CLEAR_ADV_SETS))
1531 return rp->status;
1532
1533 hci_dev_lock(hdev);
1534
1535 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
1536 u8 instance = adv->instance;
1537
1538 err = hci_remove_adv_instance(hdev, instance);
1539 if (!err)
1540 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd),
1541 hdev, instance);
1542 }
1543
1544 hci_dev_unlock(hdev);
1545
1546 return rp->status;
1547}
1548
1549static u8 hci_cc_le_read_transmit_power(struct hci_dev *hdev, void *data,
1550 struct sk_buff *skb)
1551{
1552 struct hci_rp_le_read_transmit_power *rp = data;
1553
1554 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1555
1556 if (rp->status)
1557 return rp->status;
1558
1559 hdev->min_le_tx_power = rp->min_le_tx_power;
1560 hdev->max_le_tx_power = rp->max_le_tx_power;
1561
1562 return rp->status;
1563}
1564
1565static u8 hci_cc_le_set_privacy_mode(struct hci_dev *hdev, void *data,
1566 struct sk_buff *skb)
1567{
1568 struct hci_ev_status *rp = data;
1569 struct hci_cp_le_set_privacy_mode *cp;
1570 struct hci_conn_params *params;
1571
1572 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1573
1574 if (rp->status)
1575 return rp->status;
1576
1577 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PRIVACY_MODE);
1578 if (!cp)
1579 return rp->status;
1580
1581 hci_dev_lock(hdev);
1582
1583 params = hci_conn_params_lookup(hdev, &cp->bdaddr, cp->bdaddr_type);
1584 if (params)
1585 WRITE_ONCE(params->privacy_mode, cp->mode);
1586
1587 hci_dev_unlock(hdev);
1588
1589 return rp->status;
1590}
1591
1592static u8 hci_cc_le_set_adv_enable(struct hci_dev *hdev, void *data,
1593 struct sk_buff *skb)
1594{
1595 struct hci_ev_status *rp = data;
1596 __u8 *sent;
1597
1598 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1599
1600 if (rp->status)
1601 return rp->status;
1602
1603 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1604 if (!sent)
1605 return rp->status;
1606
1607 hci_dev_lock(hdev);
1608
1609 /* If we're doing connection initiation as peripheral. Set a
1610 * timeout in case something goes wrong.
1611 */
1612 if (*sent) {
1613 struct hci_conn *conn;
1614
1615 hci_dev_set_flag(hdev, HCI_LE_ADV);
1616
1617 conn = hci_lookup_le_connect(hdev);
1618 if (conn)
1619 queue_delayed_work(hdev->workqueue,
1620 &conn->le_conn_timeout,
1621 conn->conn_timeout);
1622 } else {
1623 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1624 }
1625
1626 hci_dev_unlock(hdev);
1627
1628 return rp->status;
1629}
1630
1631static u8 hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, void *data,
1632 struct sk_buff *skb)
1633{
1634 struct hci_cp_le_set_ext_adv_enable *cp;
1635 struct hci_cp_ext_adv_set *set;
1636 struct adv_info *adv = NULL, *n;
1637 struct hci_ev_status *rp = data;
1638
1639 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1640
1641 if (rp->status)
1642 return rp->status;
1643
1644 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1645 if (!cp)
1646 return rp->status;
1647
1648 set = (void *)cp->data;
1649
1650 hci_dev_lock(hdev);
1651
1652 if (cp->num_of_sets)
1653 adv = hci_find_adv_instance(hdev, set->handle);
1654
1655 if (cp->enable) {
1656 struct hci_conn *conn;
1657
1658 hci_dev_set_flag(hdev, HCI_LE_ADV);
1659
1660 if (adv && !adv->periodic)
1661 adv->enabled = true;
1662
1663 conn = hci_lookup_le_connect(hdev);
1664 if (conn)
1665 queue_delayed_work(hdev->workqueue,
1666 &conn->le_conn_timeout,
1667 conn->conn_timeout);
1668 } else {
1669 if (cp->num_of_sets) {
1670 if (adv)
1671 adv->enabled = false;
1672
1673 /* If just one instance was disabled check if there are
1674 * any other instance enabled before clearing HCI_LE_ADV
1675 */
1676 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1677 list) {
1678 if (adv->enabled)
1679 goto unlock;
1680 }
1681 } else {
1682 /* All instances shall be considered disabled */
1683 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1684 list)
1685 adv->enabled = false;
1686 }
1687
1688 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1689 }
1690
1691unlock:
1692 hci_dev_unlock(hdev);
1693 return rp->status;
1694}
1695
1696static u8 hci_cc_le_set_scan_param(struct hci_dev *hdev, void *data,
1697 struct sk_buff *skb)
1698{
1699 struct hci_cp_le_set_scan_param *cp;
1700 struct hci_ev_status *rp = data;
1701
1702 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1703
1704 if (rp->status)
1705 return rp->status;
1706
1707 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1708 if (!cp)
1709 return rp->status;
1710
1711 hci_dev_lock(hdev);
1712
1713 hdev->le_scan_type = cp->type;
1714
1715 hci_dev_unlock(hdev);
1716
1717 return rp->status;
1718}
1719
1720static u8 hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, void *data,
1721 struct sk_buff *skb)
1722{
1723 struct hci_cp_le_set_ext_scan_params *cp;
1724 struct hci_ev_status *rp = data;
1725 struct hci_cp_le_scan_phy_params *phy_param;
1726
1727 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1728
1729 if (rp->status)
1730 return rp->status;
1731
1732 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1733 if (!cp)
1734 return rp->status;
1735
1736 phy_param = (void *)cp->data;
1737
1738 hci_dev_lock(hdev);
1739
1740 hdev->le_scan_type = phy_param->type;
1741
1742 hci_dev_unlock(hdev);
1743
1744 return rp->status;
1745}
1746
1747static bool has_pending_adv_report(struct hci_dev *hdev)
1748{
1749 struct discovery_state *d = &hdev->discovery;
1750
1751 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1752}
1753
1754static void clear_pending_adv_report(struct hci_dev *hdev)
1755{
1756 struct discovery_state *d = &hdev->discovery;
1757
1758 bacpy(&d->last_adv_addr, BDADDR_ANY);
1759 d->last_adv_data_len = 0;
1760}
1761
1762static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1763 u8 bdaddr_type, s8 rssi, u32 flags,
1764 u8 *data, u8 len)
1765{
1766 struct discovery_state *d = &hdev->discovery;
1767
1768 if (len > max_adv_len(hdev))
1769 return;
1770
1771 bacpy(&d->last_adv_addr, bdaddr);
1772 d->last_adv_addr_type = bdaddr_type;
1773 d->last_adv_rssi = rssi;
1774 d->last_adv_flags = flags;
1775 memcpy(d->last_adv_data, data, len);
1776 d->last_adv_data_len = len;
1777}
1778
1779static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
1780{
1781 hci_dev_lock(hdev);
1782
1783 switch (enable) {
1784 case LE_SCAN_ENABLE:
1785 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1786 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1787 clear_pending_adv_report(hdev);
1788 if (hci_dev_test_flag(hdev, HCI_MESH))
1789 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
1790 break;
1791
1792 case LE_SCAN_DISABLE:
1793 /* We do this here instead of when setting DISCOVERY_STOPPED
1794 * since the latter would potentially require waiting for
1795 * inquiry to stop too.
1796 */
1797 if (has_pending_adv_report(hdev)) {
1798 struct discovery_state *d = &hdev->discovery;
1799
1800 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1801 d->last_adv_addr_type, NULL,
1802 d->last_adv_rssi, d->last_adv_flags,
1803 d->last_adv_data,
1804 d->last_adv_data_len, NULL, 0, 0);
1805 }
1806
1807 /* Cancel this timer so that we don't try to disable scanning
1808 * when it's already disabled.
1809 */
1810 cancel_delayed_work(&hdev->le_scan_disable);
1811
1812 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1813
1814 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1815 * interrupted scanning due to a connect request. Mark
1816 * therefore discovery as stopped.
1817 */
1818 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1819 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1820 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1821 hdev->discovery.state == DISCOVERY_FINDING)
1822 queue_work(hdev->workqueue, &hdev->reenable_adv_work);
1823
1824 break;
1825
1826 default:
1827 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1828 enable);
1829 break;
1830 }
1831
1832 hci_dev_unlock(hdev);
1833}
1834
1835static u8 hci_cc_le_set_scan_enable(struct hci_dev *hdev, void *data,
1836 struct sk_buff *skb)
1837{
1838 struct hci_cp_le_set_scan_enable *cp;
1839 struct hci_ev_status *rp = data;
1840
1841 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1842
1843 if (rp->status)
1844 return rp->status;
1845
1846 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1847 if (!cp)
1848 return rp->status;
1849
1850 le_set_scan_enable_complete(hdev, cp->enable);
1851
1852 return rp->status;
1853}
1854
1855static u8 hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, void *data,
1856 struct sk_buff *skb)
1857{
1858 struct hci_cp_le_set_ext_scan_enable *cp;
1859 struct hci_ev_status *rp = data;
1860
1861 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1862
1863 if (rp->status)
1864 return rp->status;
1865
1866 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1867 if (!cp)
1868 return rp->status;
1869
1870 le_set_scan_enable_complete(hdev, cp->enable);
1871
1872 return rp->status;
1873}
1874
1875static u8 hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, void *data,
1876 struct sk_buff *skb)
1877{
1878 struct hci_rp_le_read_num_supported_adv_sets *rp = data;
1879
1880 bt_dev_dbg(hdev, "status 0x%2.2x No of Adv sets %u", rp->status,
1881 rp->num_of_sets);
1882
1883 if (rp->status)
1884 return rp->status;
1885
1886 hdev->le_num_of_adv_sets = rp->num_of_sets;
1887
1888 return rp->status;
1889}
1890
1891static u8 hci_cc_le_read_accept_list_size(struct hci_dev *hdev, void *data,
1892 struct sk_buff *skb)
1893{
1894 struct hci_rp_le_read_accept_list_size *rp = data;
1895
1896 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
1897
1898 if (rp->status)
1899 return rp->status;
1900
1901 hdev->le_accept_list_size = rp->size;
1902
1903 return rp->status;
1904}
1905
1906static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data,
1907 struct sk_buff *skb)
1908{
1909 struct hci_ev_status *rp = data;
1910
1911 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1912
1913 if (rp->status)
1914 return rp->status;
1915
1916 hci_dev_lock(hdev);
1917 hci_bdaddr_list_clear(&hdev->le_accept_list);
1918 hci_dev_unlock(hdev);
1919
1920 return rp->status;
1921}
1922
1923static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data,
1924 struct sk_buff *skb)
1925{
1926 struct hci_cp_le_add_to_accept_list *sent;
1927 struct hci_ev_status *rp = data;
1928
1929 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1930
1931 if (rp->status)
1932 return rp->status;
1933
1934 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST);
1935 if (!sent)
1936 return rp->status;
1937
1938 hci_dev_lock(hdev);
1939 hci_bdaddr_list_add(&hdev->le_accept_list, &sent->bdaddr,
1940 sent->bdaddr_type);
1941 hci_dev_unlock(hdev);
1942
1943 return rp->status;
1944}
1945
1946static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data,
1947 struct sk_buff *skb)
1948{
1949 struct hci_cp_le_del_from_accept_list *sent;
1950 struct hci_ev_status *rp = data;
1951
1952 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1953
1954 if (rp->status)
1955 return rp->status;
1956
1957 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST);
1958 if (!sent)
1959 return rp->status;
1960
1961 hci_dev_lock(hdev);
1962 hci_bdaddr_list_del(&hdev->le_accept_list, &sent->bdaddr,
1963 sent->bdaddr_type);
1964 hci_dev_unlock(hdev);
1965
1966 return rp->status;
1967}
1968
1969static u8 hci_cc_le_read_supported_states(struct hci_dev *hdev, void *data,
1970 struct sk_buff *skb)
1971{
1972 struct hci_rp_le_read_supported_states *rp = data;
1973
1974 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1975
1976 if (rp->status)
1977 return rp->status;
1978
1979 memcpy(hdev->le_states, rp->le_states, 8);
1980
1981 return rp->status;
1982}
1983
1984static u8 hci_cc_le_read_def_data_len(struct hci_dev *hdev, void *data,
1985 struct sk_buff *skb)
1986{
1987 struct hci_rp_le_read_def_data_len *rp = data;
1988
1989 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1990
1991 if (rp->status)
1992 return rp->status;
1993
1994 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1995 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1996
1997 return rp->status;
1998}
1999
2000static u8 hci_cc_le_write_def_data_len(struct hci_dev *hdev, void *data,
2001 struct sk_buff *skb)
2002{
2003 struct hci_cp_le_write_def_data_len *sent;
2004 struct hci_ev_status *rp = data;
2005
2006 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2007
2008 if (rp->status)
2009 return rp->status;
2010
2011 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
2012 if (!sent)
2013 return rp->status;
2014
2015 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
2016 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
2017
2018 return rp->status;
2019}
2020
2021static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data,
2022 struct sk_buff *skb)
2023{
2024 struct hci_cp_le_add_to_resolv_list *sent;
2025 struct hci_ev_status *rp = data;
2026
2027 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2028
2029 if (rp->status)
2030 return rp->status;
2031
2032 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
2033 if (!sent)
2034 return rp->status;
2035
2036 hci_dev_lock(hdev);
2037 hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2038 sent->bdaddr_type, sent->peer_irk,
2039 sent->local_irk);
2040 hci_dev_unlock(hdev);
2041
2042 return rp->status;
2043}
2044
2045static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data,
2046 struct sk_buff *skb)
2047{
2048 struct hci_cp_le_del_from_resolv_list *sent;
2049 struct hci_ev_status *rp = data;
2050
2051 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2052
2053 if (rp->status)
2054 return rp->status;
2055
2056 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
2057 if (!sent)
2058 return rp->status;
2059
2060 hci_dev_lock(hdev);
2061 hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2062 sent->bdaddr_type);
2063 hci_dev_unlock(hdev);
2064
2065 return rp->status;
2066}
2067
2068static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data,
2069 struct sk_buff *skb)
2070{
2071 struct hci_ev_status *rp = data;
2072
2073 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2074
2075 if (rp->status)
2076 return rp->status;
2077
2078 hci_dev_lock(hdev);
2079 hci_bdaddr_list_clear(&hdev->le_resolv_list);
2080 hci_dev_unlock(hdev);
2081
2082 return rp->status;
2083}
2084
2085static u8 hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, void *data,
2086 struct sk_buff *skb)
2087{
2088 struct hci_rp_le_read_resolv_list_size *rp = data;
2089
2090 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
2091
2092 if (rp->status)
2093 return rp->status;
2094
2095 hdev->le_resolv_list_size = rp->size;
2096
2097 return rp->status;
2098}
2099
2100static u8 hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, void *data,
2101 struct sk_buff *skb)
2102{
2103 struct hci_ev_status *rp = data;
2104 __u8 *sent;
2105
2106 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2107
2108 if (rp->status)
2109 return rp->status;
2110
2111 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
2112 if (!sent)
2113 return rp->status;
2114
2115 hci_dev_lock(hdev);
2116
2117 if (*sent)
2118 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
2119 else
2120 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
2121
2122 hci_dev_unlock(hdev);
2123
2124 return rp->status;
2125}
2126
2127static u8 hci_cc_le_read_max_data_len(struct hci_dev *hdev, void *data,
2128 struct sk_buff *skb)
2129{
2130 struct hci_rp_le_read_max_data_len *rp = data;
2131
2132 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2133
2134 if (rp->status)
2135 return rp->status;
2136
2137 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
2138 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
2139 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
2140 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
2141
2142 return rp->status;
2143}
2144
2145static u8 hci_cc_write_le_host_supported(struct hci_dev *hdev, void *data,
2146 struct sk_buff *skb)
2147{
2148 struct hci_cp_write_le_host_supported *sent;
2149 struct hci_ev_status *rp = data;
2150
2151 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2152
2153 if (rp->status)
2154 return rp->status;
2155
2156 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
2157 if (!sent)
2158 return rp->status;
2159
2160 hci_dev_lock(hdev);
2161
2162 if (sent->le) {
2163 hdev->features[1][0] |= LMP_HOST_LE;
2164 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
2165 } else {
2166 hdev->features[1][0] &= ~LMP_HOST_LE;
2167 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
2168 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2169 }
2170
2171 if (sent->simul)
2172 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
2173 else
2174 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
2175
2176 hci_dev_unlock(hdev);
2177
2178 return rp->status;
2179}
2180
2181static u8 hci_cc_set_adv_param(struct hci_dev *hdev, void *data,
2182 struct sk_buff *skb)
2183{
2184 struct hci_cp_le_set_adv_param *cp;
2185 struct hci_ev_status *rp = data;
2186
2187 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2188
2189 if (rp->status)
2190 return rp->status;
2191
2192 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
2193 if (!cp)
2194 return rp->status;
2195
2196 hci_dev_lock(hdev);
2197 hdev->adv_addr_type = cp->own_address_type;
2198 hci_dev_unlock(hdev);
2199
2200 return rp->status;
2201}
2202
2203static u8 hci_cc_set_ext_adv_param(struct hci_dev *hdev, void *data,
2204 struct sk_buff *skb)
2205{
2206 struct hci_rp_le_set_ext_adv_params *rp = data;
2207 struct hci_cp_le_set_ext_adv_params *cp;
2208 struct adv_info *adv_instance;
2209
2210 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2211
2212 if (rp->status)
2213 return rp->status;
2214
2215 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
2216 if (!cp)
2217 return rp->status;
2218
2219 hci_dev_lock(hdev);
2220 hdev->adv_addr_type = cp->own_addr_type;
2221 if (!cp->handle) {
2222 /* Store in hdev for instance 0 */
2223 hdev->adv_tx_power = rp->tx_power;
2224 } else {
2225 adv_instance = hci_find_adv_instance(hdev, cp->handle);
2226 if (adv_instance)
2227 adv_instance->tx_power = rp->tx_power;
2228 }
2229 /* Update adv data as tx power is known now */
2230 hci_update_adv_data(hdev, cp->handle);
2231
2232 hci_dev_unlock(hdev);
2233
2234 return rp->status;
2235}
2236
2237static u8 hci_cc_read_rssi(struct hci_dev *hdev, void *data,
2238 struct sk_buff *skb)
2239{
2240 struct hci_rp_read_rssi *rp = data;
2241 struct hci_conn *conn;
2242
2243 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2244
2245 if (rp->status)
2246 return rp->status;
2247
2248 hci_dev_lock(hdev);
2249
2250 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2251 if (conn)
2252 conn->rssi = rp->rssi;
2253
2254 hci_dev_unlock(hdev);
2255
2256 return rp->status;
2257}
2258
2259static u8 hci_cc_read_tx_power(struct hci_dev *hdev, void *data,
2260 struct sk_buff *skb)
2261{
2262 struct hci_cp_read_tx_power *sent;
2263 struct hci_rp_read_tx_power *rp = data;
2264 struct hci_conn *conn;
2265
2266 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2267
2268 if (rp->status)
2269 return rp->status;
2270
2271 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
2272 if (!sent)
2273 return rp->status;
2274
2275 hci_dev_lock(hdev);
2276
2277 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2278 if (!conn)
2279 goto unlock;
2280
2281 switch (sent->type) {
2282 case 0x00:
2283 conn->tx_power = rp->tx_power;
2284 break;
2285 case 0x01:
2286 conn->max_tx_power = rp->tx_power;
2287 break;
2288 }
2289
2290unlock:
2291 hci_dev_unlock(hdev);
2292 return rp->status;
2293}
2294
2295static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data,
2296 struct sk_buff *skb)
2297{
2298 struct hci_ev_status *rp = data;
2299 u8 *mode;
2300
2301 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2302
2303 if (rp->status)
2304 return rp->status;
2305
2306 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
2307 if (mode)
2308 hdev->ssp_debug_mode = *mode;
2309
2310 return rp->status;
2311}
2312
2313static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
2314{
2315 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2316
2317 if (status) {
2318 hci_conn_check_pending(hdev);
2319 return;
2320 }
2321
2322 if (hci_sent_cmd_data(hdev, HCI_OP_INQUIRY))
2323 set_bit(HCI_INQUIRY, &hdev->flags);
2324}
2325
2326static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
2327{
2328 struct hci_cp_create_conn *cp;
2329 struct hci_conn *conn;
2330
2331 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2332
2333 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
2334 if (!cp)
2335 return;
2336
2337 hci_dev_lock(hdev);
2338
2339 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2340
2341 bt_dev_dbg(hdev, "bdaddr %pMR hcon %p", &cp->bdaddr, conn);
2342
2343 if (status) {
2344 if (conn && conn->state == BT_CONNECT) {
2345 if (status != 0x0c || conn->attempt > 2) {
2346 conn->state = BT_CLOSED;
2347 hci_connect_cfm(conn, status);
2348 hci_conn_del(conn);
2349 } else
2350 conn->state = BT_CONNECT2;
2351 }
2352 } else {
2353 if (!conn) {
2354 conn = hci_conn_add_unset(hdev, ACL_LINK, &cp->bdaddr,
2355 HCI_ROLE_MASTER);
2356 if (!conn)
2357 bt_dev_err(hdev, "no memory for new connection");
2358 }
2359 }
2360
2361 hci_dev_unlock(hdev);
2362}
2363
2364static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
2365{
2366 struct hci_cp_add_sco *cp;
2367 struct hci_conn *acl;
2368 struct hci_link *link;
2369 __u16 handle;
2370
2371 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2372
2373 if (!status)
2374 return;
2375
2376 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
2377 if (!cp)
2378 return;
2379
2380 handle = __le16_to_cpu(cp->handle);
2381
2382 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
2383
2384 hci_dev_lock(hdev);
2385
2386 acl = hci_conn_hash_lookup_handle(hdev, handle);
2387 if (acl) {
2388 link = list_first_entry_or_null(&acl->link_list,
2389 struct hci_link, list);
2390 if (link && link->conn) {
2391 link->conn->state = BT_CLOSED;
2392
2393 hci_connect_cfm(link->conn, status);
2394 hci_conn_del(link->conn);
2395 }
2396 }
2397
2398 hci_dev_unlock(hdev);
2399}
2400
2401static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
2402{
2403 struct hci_cp_auth_requested *cp;
2404 struct hci_conn *conn;
2405
2406 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2407
2408 if (!status)
2409 return;
2410
2411 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
2412 if (!cp)
2413 return;
2414
2415 hci_dev_lock(hdev);
2416
2417 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2418 if (conn) {
2419 if (conn->state == BT_CONFIG) {
2420 hci_connect_cfm(conn, status);
2421 hci_conn_drop(conn);
2422 }
2423 }
2424
2425 hci_dev_unlock(hdev);
2426}
2427
2428static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
2429{
2430 struct hci_cp_set_conn_encrypt *cp;
2431 struct hci_conn *conn;
2432
2433 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2434
2435 if (!status)
2436 return;
2437
2438 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
2439 if (!cp)
2440 return;
2441
2442 hci_dev_lock(hdev);
2443
2444 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2445 if (conn) {
2446 if (conn->state == BT_CONFIG) {
2447 hci_connect_cfm(conn, status);
2448 hci_conn_drop(conn);
2449 }
2450 }
2451
2452 hci_dev_unlock(hdev);
2453}
2454
2455static int hci_outgoing_auth_needed(struct hci_dev *hdev,
2456 struct hci_conn *conn)
2457{
2458 if (conn->state != BT_CONFIG || !conn->out)
2459 return 0;
2460
2461 if (conn->pending_sec_level == BT_SECURITY_SDP)
2462 return 0;
2463
2464 /* Only request authentication for SSP connections or non-SSP
2465 * devices with sec_level MEDIUM or HIGH or if MITM protection
2466 * is requested.
2467 */
2468 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
2469 conn->pending_sec_level != BT_SECURITY_FIPS &&
2470 conn->pending_sec_level != BT_SECURITY_HIGH &&
2471 conn->pending_sec_level != BT_SECURITY_MEDIUM)
2472 return 0;
2473
2474 return 1;
2475}
2476
2477static int hci_resolve_name(struct hci_dev *hdev,
2478 struct inquiry_entry *e)
2479{
2480 struct hci_cp_remote_name_req cp;
2481
2482 memset(&cp, 0, sizeof(cp));
2483
2484 bacpy(&cp.bdaddr, &e->data.bdaddr);
2485 cp.pscan_rep_mode = e->data.pscan_rep_mode;
2486 cp.pscan_mode = e->data.pscan_mode;
2487 cp.clock_offset = e->data.clock_offset;
2488
2489 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2490}
2491
2492static bool hci_resolve_next_name(struct hci_dev *hdev)
2493{
2494 struct discovery_state *discov = &hdev->discovery;
2495 struct inquiry_entry *e;
2496
2497 if (list_empty(&discov->resolve))
2498 return false;
2499
2500 /* We should stop if we already spent too much time resolving names. */
2501 if (time_after(jiffies, discov->name_resolve_timeout)) {
2502 bt_dev_warn_ratelimited(hdev, "Name resolve takes too long.");
2503 return false;
2504 }
2505
2506 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2507 if (!e)
2508 return false;
2509
2510 if (hci_resolve_name(hdev, e) == 0) {
2511 e->name_state = NAME_PENDING;
2512 return true;
2513 }
2514
2515 return false;
2516}
2517
2518static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
2519 bdaddr_t *bdaddr, u8 *name, u8 name_len)
2520{
2521 struct discovery_state *discov = &hdev->discovery;
2522 struct inquiry_entry *e;
2523
2524 /* Update the mgmt connected state if necessary. Be careful with
2525 * conn objects that exist but are not (yet) connected however.
2526 * Only those in BT_CONFIG or BT_CONNECTED states can be
2527 * considered connected.
2528 */
2529 if (conn &&
2530 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
2531 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2532 mgmt_device_connected(hdev, conn, name, name_len);
2533
2534 if (discov->state == DISCOVERY_STOPPED)
2535 return;
2536
2537 if (discov->state == DISCOVERY_STOPPING)
2538 goto discov_complete;
2539
2540 if (discov->state != DISCOVERY_RESOLVING)
2541 return;
2542
2543 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
2544 /* If the device was not found in a list of found devices names of which
2545 * are pending. there is no need to continue resolving a next name as it
2546 * will be done upon receiving another Remote Name Request Complete
2547 * Event */
2548 if (!e)
2549 return;
2550
2551 list_del(&e->list);
2552
2553 e->name_state = name ? NAME_KNOWN : NAME_NOT_KNOWN;
2554 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, e->data.rssi,
2555 name, name_len);
2556
2557 if (hci_resolve_next_name(hdev))
2558 return;
2559
2560discov_complete:
2561 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2562}
2563
2564static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
2565{
2566 struct hci_cp_remote_name_req *cp;
2567 struct hci_conn *conn;
2568
2569 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2570
2571 /* If successful wait for the name req complete event before
2572 * checking for the need to do authentication */
2573 if (!status)
2574 return;
2575
2576 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
2577 if (!cp)
2578 return;
2579
2580 hci_dev_lock(hdev);
2581
2582 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2583
2584 if (hci_dev_test_flag(hdev, HCI_MGMT))
2585 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
2586
2587 if (!conn)
2588 goto unlock;
2589
2590 if (!hci_outgoing_auth_needed(hdev, conn))
2591 goto unlock;
2592
2593 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2594 struct hci_cp_auth_requested auth_cp;
2595
2596 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2597
2598 auth_cp.handle = __cpu_to_le16(conn->handle);
2599 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
2600 sizeof(auth_cp), &auth_cp);
2601 }
2602
2603unlock:
2604 hci_dev_unlock(hdev);
2605}
2606
2607static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
2608{
2609 struct hci_cp_read_remote_features *cp;
2610 struct hci_conn *conn;
2611
2612 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2613
2614 if (!status)
2615 return;
2616
2617 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
2618 if (!cp)
2619 return;
2620
2621 hci_dev_lock(hdev);
2622
2623 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2624 if (conn) {
2625 if (conn->state == BT_CONFIG) {
2626 hci_connect_cfm(conn, status);
2627 hci_conn_drop(conn);
2628 }
2629 }
2630
2631 hci_dev_unlock(hdev);
2632}
2633
2634static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
2635{
2636 struct hci_cp_read_remote_ext_features *cp;
2637 struct hci_conn *conn;
2638
2639 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2640
2641 if (!status)
2642 return;
2643
2644 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2645 if (!cp)
2646 return;
2647
2648 hci_dev_lock(hdev);
2649
2650 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2651 if (conn) {
2652 if (conn->state == BT_CONFIG) {
2653 hci_connect_cfm(conn, status);
2654 hci_conn_drop(conn);
2655 }
2656 }
2657
2658 hci_dev_unlock(hdev);
2659}
2660
2661static void hci_setup_sync_conn_status(struct hci_dev *hdev, __u16 handle,
2662 __u8 status)
2663{
2664 struct hci_conn *acl;
2665 struct hci_link *link;
2666
2667 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x", handle, status);
2668
2669 hci_dev_lock(hdev);
2670
2671 acl = hci_conn_hash_lookup_handle(hdev, handle);
2672 if (acl) {
2673 link = list_first_entry_or_null(&acl->link_list,
2674 struct hci_link, list);
2675 if (link && link->conn) {
2676 link->conn->state = BT_CLOSED;
2677
2678 hci_connect_cfm(link->conn, status);
2679 hci_conn_del(link->conn);
2680 }
2681 }
2682
2683 hci_dev_unlock(hdev);
2684}
2685
2686static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2687{
2688 struct hci_cp_setup_sync_conn *cp;
2689
2690 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2691
2692 if (!status)
2693 return;
2694
2695 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
2696 if (!cp)
2697 return;
2698
2699 hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status);
2700}
2701
2702static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2703{
2704 struct hci_cp_enhanced_setup_sync_conn *cp;
2705
2706 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2707
2708 if (!status)
2709 return;
2710
2711 cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN);
2712 if (!cp)
2713 return;
2714
2715 hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status);
2716}
2717
2718static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
2719{
2720 struct hci_cp_sniff_mode *cp;
2721 struct hci_conn *conn;
2722
2723 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2724
2725 if (!status)
2726 return;
2727
2728 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2729 if (!cp)
2730 return;
2731
2732 hci_dev_lock(hdev);
2733
2734 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2735 if (conn) {
2736 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2737
2738 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2739 hci_sco_setup(conn, status);
2740 }
2741
2742 hci_dev_unlock(hdev);
2743}
2744
2745static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2746{
2747 struct hci_cp_exit_sniff_mode *cp;
2748 struct hci_conn *conn;
2749
2750 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2751
2752 if (!status)
2753 return;
2754
2755 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2756 if (!cp)
2757 return;
2758
2759 hci_dev_lock(hdev);
2760
2761 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2762 if (conn) {
2763 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2764
2765 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2766 hci_sco_setup(conn, status);
2767 }
2768
2769 hci_dev_unlock(hdev);
2770}
2771
2772static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2773{
2774 struct hci_cp_disconnect *cp;
2775 struct hci_conn_params *params;
2776 struct hci_conn *conn;
2777 bool mgmt_conn;
2778
2779 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2780
2781 /* Wait for HCI_EV_DISCONN_COMPLETE if status 0x00 and not suspended
2782 * otherwise cleanup the connection immediately.
2783 */
2784 if (!status && !hdev->suspended)
2785 return;
2786
2787 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2788 if (!cp)
2789 return;
2790
2791 hci_dev_lock(hdev);
2792
2793 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2794 if (!conn)
2795 goto unlock;
2796
2797 if (status) {
2798 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2799 conn->dst_type, status);
2800
2801 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
2802 hdev->cur_adv_instance = conn->adv_instance;
2803 hci_enable_advertising(hdev);
2804 }
2805
2806 /* Inform sockets conn is gone before we delete it */
2807 hci_disconn_cfm(conn, HCI_ERROR_UNSPECIFIED);
2808
2809 goto done;
2810 }
2811
2812 mgmt_conn = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2813
2814 if (conn->type == ACL_LINK) {
2815 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2816 hci_remove_link_key(hdev, &conn->dst);
2817 }
2818
2819 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2820 if (params) {
2821 switch (params->auto_connect) {
2822 case HCI_AUTO_CONN_LINK_LOSS:
2823 if (cp->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2824 break;
2825 fallthrough;
2826
2827 case HCI_AUTO_CONN_DIRECT:
2828 case HCI_AUTO_CONN_ALWAYS:
2829 hci_pend_le_list_del_init(params);
2830 hci_pend_le_list_add(params, &hdev->pend_le_conns);
2831 break;
2832
2833 default:
2834 break;
2835 }
2836 }
2837
2838 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2839 cp->reason, mgmt_conn);
2840
2841 hci_disconn_cfm(conn, cp->reason);
2842
2843done:
2844 /* If the disconnection failed for any reason, the upper layer
2845 * does not retry to disconnect in current implementation.
2846 * Hence, we need to do some basic cleanup here and re-enable
2847 * advertising if necessary.
2848 */
2849 hci_conn_del(conn);
2850unlock:
2851 hci_dev_unlock(hdev);
2852}
2853
2854static u8 ev_bdaddr_type(struct hci_dev *hdev, u8 type, bool *resolved)
2855{
2856 /* When using controller based address resolution, then the new
2857 * address types 0x02 and 0x03 are used. These types need to be
2858 * converted back into either public address or random address type
2859 */
2860 switch (type) {
2861 case ADDR_LE_DEV_PUBLIC_RESOLVED:
2862 if (resolved)
2863 *resolved = true;
2864 return ADDR_LE_DEV_PUBLIC;
2865 case ADDR_LE_DEV_RANDOM_RESOLVED:
2866 if (resolved)
2867 *resolved = true;
2868 return ADDR_LE_DEV_RANDOM;
2869 }
2870
2871 if (resolved)
2872 *resolved = false;
2873 return type;
2874}
2875
2876static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2877 u8 peer_addr_type, u8 own_address_type,
2878 u8 filter_policy)
2879{
2880 struct hci_conn *conn;
2881
2882 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
2883 peer_addr_type);
2884 if (!conn)
2885 return;
2886
2887 own_address_type = ev_bdaddr_type(hdev, own_address_type, NULL);
2888
2889 /* Store the initiator and responder address information which
2890 * is needed for SMP. These values will not change during the
2891 * lifetime of the connection.
2892 */
2893 conn->init_addr_type = own_address_type;
2894 if (own_address_type == ADDR_LE_DEV_RANDOM)
2895 bacpy(&conn->init_addr, &hdev->random_addr);
2896 else
2897 bacpy(&conn->init_addr, &hdev->bdaddr);
2898
2899 conn->resp_addr_type = peer_addr_type;
2900 bacpy(&conn->resp_addr, peer_addr);
2901}
2902
2903static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2904{
2905 struct hci_cp_le_create_conn *cp;
2906
2907 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2908
2909 /* All connection failure handling is taken care of by the
2910 * hci_conn_failed function which is triggered by the HCI
2911 * request completion callbacks used for connecting.
2912 */
2913 if (status)
2914 return;
2915
2916 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
2917 if (!cp)
2918 return;
2919
2920 hci_dev_lock(hdev);
2921
2922 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2923 cp->own_address_type, cp->filter_policy);
2924
2925 hci_dev_unlock(hdev);
2926}
2927
2928static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
2929{
2930 struct hci_cp_le_ext_create_conn *cp;
2931
2932 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2933
2934 /* All connection failure handling is taken care of by the
2935 * hci_conn_failed function which is triggered by the HCI
2936 * request completion callbacks used for connecting.
2937 */
2938 if (status)
2939 return;
2940
2941 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
2942 if (!cp)
2943 return;
2944
2945 hci_dev_lock(hdev);
2946
2947 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2948 cp->own_addr_type, cp->filter_policy);
2949
2950 hci_dev_unlock(hdev);
2951}
2952
2953static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
2954{
2955 struct hci_cp_le_read_remote_features *cp;
2956 struct hci_conn *conn;
2957
2958 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2959
2960 if (!status)
2961 return;
2962
2963 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
2964 if (!cp)
2965 return;
2966
2967 hci_dev_lock(hdev);
2968
2969 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2970 if (conn) {
2971 if (conn->state == BT_CONFIG) {
2972 hci_connect_cfm(conn, status);
2973 hci_conn_drop(conn);
2974 }
2975 }
2976
2977 hci_dev_unlock(hdev);
2978}
2979
2980static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
2981{
2982 struct hci_cp_le_start_enc *cp;
2983 struct hci_conn *conn;
2984
2985 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2986
2987 if (!status)
2988 return;
2989
2990 hci_dev_lock(hdev);
2991
2992 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
2993 if (!cp)
2994 goto unlock;
2995
2996 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2997 if (!conn)
2998 goto unlock;
2999
3000 if (conn->state != BT_CONNECTED)
3001 goto unlock;
3002
3003 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3004 hci_conn_drop(conn);
3005
3006unlock:
3007 hci_dev_unlock(hdev);
3008}
3009
3010static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
3011{
3012 struct hci_cp_switch_role *cp;
3013 struct hci_conn *conn;
3014
3015 BT_DBG("%s status 0x%2.2x", hdev->name, status);
3016
3017 if (!status)
3018 return;
3019
3020 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
3021 if (!cp)
3022 return;
3023
3024 hci_dev_lock(hdev);
3025
3026 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
3027 if (conn)
3028 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3029
3030 hci_dev_unlock(hdev);
3031}
3032
3033static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data,
3034 struct sk_buff *skb)
3035{
3036 struct hci_ev_status *ev = data;
3037 struct discovery_state *discov = &hdev->discovery;
3038 struct inquiry_entry *e;
3039
3040 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3041
3042 hci_conn_check_pending(hdev);
3043
3044 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
3045 return;
3046
3047 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3048 wake_up_bit(&hdev->flags, HCI_INQUIRY);
3049
3050 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3051 return;
3052
3053 hci_dev_lock(hdev);
3054
3055 if (discov->state != DISCOVERY_FINDING)
3056 goto unlock;
3057
3058 if (list_empty(&discov->resolve)) {
3059 /* When BR/EDR inquiry is active and no LE scanning is in
3060 * progress, then change discovery state to indicate completion.
3061 *
3062 * When running LE scanning and BR/EDR inquiry simultaneously
3063 * and the LE scan already finished, then change the discovery
3064 * state to indicate completion.
3065 */
3066 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3067 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3068 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3069 goto unlock;
3070 }
3071
3072 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
3073 if (e && hci_resolve_name(hdev, e) == 0) {
3074 e->name_state = NAME_PENDING;
3075 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
3076 discov->name_resolve_timeout = jiffies + NAME_RESOLVE_DURATION;
3077 } else {
3078 /* When BR/EDR inquiry is active and no LE scanning is in
3079 * progress, then change discovery state to indicate completion.
3080 *
3081 * When running LE scanning and BR/EDR inquiry simultaneously
3082 * and the LE scan already finished, then change the discovery
3083 * state to indicate completion.
3084 */
3085 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3086 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3087 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3088 }
3089
3090unlock:
3091 hci_dev_unlock(hdev);
3092}
3093
3094static void hci_inquiry_result_evt(struct hci_dev *hdev, void *edata,
3095 struct sk_buff *skb)
3096{
3097 struct hci_ev_inquiry_result *ev = edata;
3098 struct inquiry_data data;
3099 int i;
3100
3101 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_INQUIRY_RESULT,
3102 flex_array_size(ev, info, ev->num)))
3103 return;
3104
3105 bt_dev_dbg(hdev, "num %d", ev->num);
3106
3107 if (!ev->num)
3108 return;
3109
3110 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3111 return;
3112
3113 hci_dev_lock(hdev);
3114
3115 for (i = 0; i < ev->num; i++) {
3116 struct inquiry_info *info = &ev->info[i];
3117 u32 flags;
3118
3119 bacpy(&data.bdaddr, &info->bdaddr);
3120 data.pscan_rep_mode = info->pscan_rep_mode;
3121 data.pscan_period_mode = info->pscan_period_mode;
3122 data.pscan_mode = info->pscan_mode;
3123 memcpy(data.dev_class, info->dev_class, 3);
3124 data.clock_offset = info->clock_offset;
3125 data.rssi = HCI_RSSI_INVALID;
3126 data.ssp_mode = 0x00;
3127
3128 flags = hci_inquiry_cache_update(hdev, &data, false);
3129
3130 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3131 info->dev_class, HCI_RSSI_INVALID,
3132 flags, NULL, 0, NULL, 0, 0);
3133 }
3134
3135 hci_dev_unlock(hdev);
3136}
3137
3138static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
3139 struct sk_buff *skb)
3140{
3141 struct hci_ev_conn_complete *ev = data;
3142 struct hci_conn *conn;
3143 u8 status = ev->status;
3144
3145 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3146
3147 hci_dev_lock(hdev);
3148
3149 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3150 if (!conn) {
3151 /* In case of error status and there is no connection pending
3152 * just unlock as there is nothing to cleanup.
3153 */
3154 if (ev->status)
3155 goto unlock;
3156
3157 /* Connection may not exist if auto-connected. Check the bredr
3158 * allowlist to see if this device is allowed to auto connect.
3159 * If link is an ACL type, create a connection class
3160 * automatically.
3161 *
3162 * Auto-connect will only occur if the event filter is
3163 * programmed with a given address. Right now, event filter is
3164 * only used during suspend.
3165 */
3166 if (ev->link_type == ACL_LINK &&
3167 hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
3168 &ev->bdaddr,
3169 BDADDR_BREDR)) {
3170 conn = hci_conn_add_unset(hdev, ev->link_type,
3171 &ev->bdaddr, HCI_ROLE_SLAVE);
3172 if (!conn) {
3173 bt_dev_err(hdev, "no memory for new conn");
3174 goto unlock;
3175 }
3176 } else {
3177 if (ev->link_type != SCO_LINK)
3178 goto unlock;
3179
3180 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK,
3181 &ev->bdaddr);
3182 if (!conn)
3183 goto unlock;
3184
3185 conn->type = SCO_LINK;
3186 }
3187 }
3188
3189 /* The HCI_Connection_Complete event is only sent once per connection.
3190 * Processing it more than once per connection can corrupt kernel memory.
3191 *
3192 * As the connection handle is set here for the first time, it indicates
3193 * whether the connection is already set up.
3194 */
3195 if (!HCI_CONN_HANDLE_UNSET(conn->handle)) {
3196 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
3197 goto unlock;
3198 }
3199
3200 if (!status) {
3201 status = hci_conn_set_handle(conn, __le16_to_cpu(ev->handle));
3202 if (status)
3203 goto done;
3204
3205 if (conn->type == ACL_LINK) {
3206 conn->state = BT_CONFIG;
3207 hci_conn_hold(conn);
3208
3209 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
3210 !hci_find_link_key(hdev, &ev->bdaddr))
3211 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3212 else
3213 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3214 } else
3215 conn->state = BT_CONNECTED;
3216
3217 hci_debugfs_create_conn(conn);
3218 hci_conn_add_sysfs(conn);
3219
3220 if (test_bit(HCI_AUTH, &hdev->flags))
3221 set_bit(HCI_CONN_AUTH, &conn->flags);
3222
3223 if (test_bit(HCI_ENCRYPT, &hdev->flags))
3224 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3225
3226 /* Get remote features */
3227 if (conn->type == ACL_LINK) {
3228 struct hci_cp_read_remote_features cp;
3229 cp.handle = ev->handle;
3230 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
3231 sizeof(cp), &cp);
3232
3233 hci_update_scan(hdev);
3234 }
3235
3236 /* Set packet type for incoming connection */
3237 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
3238 struct hci_cp_change_conn_ptype cp;
3239 cp.handle = ev->handle;
3240 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3241 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
3242 &cp);
3243 }
3244 }
3245
3246 if (conn->type == ACL_LINK)
3247 hci_sco_setup(conn, ev->status);
3248
3249done:
3250 if (status) {
3251 hci_conn_failed(conn, status);
3252 } else if (ev->link_type == SCO_LINK) {
3253 switch (conn->setting & SCO_AIRMODE_MASK) {
3254 case SCO_AIRMODE_CVSD:
3255 if (hdev->notify)
3256 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
3257 break;
3258 }
3259
3260 hci_connect_cfm(conn, status);
3261 }
3262
3263unlock:
3264 hci_dev_unlock(hdev);
3265
3266 hci_conn_check_pending(hdev);
3267}
3268
3269static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
3270{
3271 struct hci_cp_reject_conn_req cp;
3272
3273 bacpy(&cp.bdaddr, bdaddr);
3274 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
3275 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
3276}
3277
3278static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
3279 struct sk_buff *skb)
3280{
3281 struct hci_ev_conn_request *ev = data;
3282 int mask = hdev->link_mode;
3283 struct inquiry_entry *ie;
3284 struct hci_conn *conn;
3285 __u8 flags = 0;
3286
3287 bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x", &ev->bdaddr, ev->link_type);
3288
3289 /* Reject incoming connection from device with same BD ADDR against
3290 * CVE-2020-26555
3291 */
3292 if (hdev && !bacmp(&hdev->bdaddr, &ev->bdaddr)) {
3293 bt_dev_dbg(hdev, "Reject connection with same BD_ADDR %pMR\n",
3294 &ev->bdaddr);
3295 hci_reject_conn(hdev, &ev->bdaddr);
3296 return;
3297 }
3298
3299 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
3300 &flags);
3301
3302 if (!(mask & HCI_LM_ACCEPT)) {
3303 hci_reject_conn(hdev, &ev->bdaddr);
3304 return;
3305 }
3306
3307 hci_dev_lock(hdev);
3308
3309 if (hci_bdaddr_list_lookup(&hdev->reject_list, &ev->bdaddr,
3310 BDADDR_BREDR)) {
3311 hci_reject_conn(hdev, &ev->bdaddr);
3312 goto unlock;
3313 }
3314
3315 /* Require HCI_CONNECTABLE or an accept list entry to accept the
3316 * connection. These features are only touched through mgmt so
3317 * only do the checks if HCI_MGMT is set.
3318 */
3319 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
3320 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
3321 !hci_bdaddr_list_lookup_with_flags(&hdev->accept_list, &ev->bdaddr,
3322 BDADDR_BREDR)) {
3323 hci_reject_conn(hdev, &ev->bdaddr);
3324 goto unlock;
3325 }
3326
3327 /* Connection accepted */
3328
3329 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3330 if (ie)
3331 memcpy(ie->data.dev_class, ev->dev_class, 3);
3332
3333 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
3334 &ev->bdaddr);
3335 if (!conn) {
3336 conn = hci_conn_add_unset(hdev, ev->link_type, &ev->bdaddr,
3337 HCI_ROLE_SLAVE);
3338 if (!conn) {
3339 bt_dev_err(hdev, "no memory for new connection");
3340 goto unlock;
3341 }
3342 }
3343
3344 memcpy(conn->dev_class, ev->dev_class, 3);
3345
3346 hci_dev_unlock(hdev);
3347
3348 if (ev->link_type == ACL_LINK ||
3349 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
3350 struct hci_cp_accept_conn_req cp;
3351 conn->state = BT_CONNECT;
3352
3353 bacpy(&cp.bdaddr, &ev->bdaddr);
3354
3355 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
3356 cp.role = 0x00; /* Become central */
3357 else
3358 cp.role = 0x01; /* Remain peripheral */
3359
3360 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
3361 } else if (!(flags & HCI_PROTO_DEFER)) {
3362 struct hci_cp_accept_sync_conn_req cp;
3363 conn->state = BT_CONNECT;
3364
3365 bacpy(&cp.bdaddr, &ev->bdaddr);
3366 cp.pkt_type = cpu_to_le16(conn->pkt_type);
3367
3368 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
3369 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
3370 cp.max_latency = cpu_to_le16(0xffff);
3371 cp.content_format = cpu_to_le16(hdev->voice_setting);
3372 cp.retrans_effort = 0xff;
3373
3374 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
3375 &cp);
3376 } else {
3377 conn->state = BT_CONNECT2;
3378 hci_connect_cfm(conn, 0);
3379 }
3380
3381 return;
3382unlock:
3383 hci_dev_unlock(hdev);
3384}
3385
3386static u8 hci_to_mgmt_reason(u8 err)
3387{
3388 switch (err) {
3389 case HCI_ERROR_CONNECTION_TIMEOUT:
3390 return MGMT_DEV_DISCONN_TIMEOUT;
3391 case HCI_ERROR_REMOTE_USER_TERM:
3392 case HCI_ERROR_REMOTE_LOW_RESOURCES:
3393 case HCI_ERROR_REMOTE_POWER_OFF:
3394 return MGMT_DEV_DISCONN_REMOTE;
3395 case HCI_ERROR_LOCAL_HOST_TERM:
3396 return MGMT_DEV_DISCONN_LOCAL_HOST;
3397 default:
3398 return MGMT_DEV_DISCONN_UNKNOWN;
3399 }
3400}
3401
3402static void hci_disconn_complete_evt(struct hci_dev *hdev, void *data,
3403 struct sk_buff *skb)
3404{
3405 struct hci_ev_disconn_complete *ev = data;
3406 u8 reason;
3407 struct hci_conn_params *params;
3408 struct hci_conn *conn;
3409 bool mgmt_connected;
3410
3411 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3412
3413 hci_dev_lock(hdev);
3414
3415 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3416 if (!conn)
3417 goto unlock;
3418
3419 if (ev->status) {
3420 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
3421 conn->dst_type, ev->status);
3422 goto unlock;
3423 }
3424
3425 conn->state = BT_CLOSED;
3426
3427 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
3428
3429 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
3430 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
3431 else
3432 reason = hci_to_mgmt_reason(ev->reason);
3433
3434 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
3435 reason, mgmt_connected);
3436
3437 if (conn->type == ACL_LINK) {
3438 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
3439 hci_remove_link_key(hdev, &conn->dst);
3440
3441 hci_update_scan(hdev);
3442 }
3443
3444 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
3445 if (params) {
3446 switch (params->auto_connect) {
3447 case HCI_AUTO_CONN_LINK_LOSS:
3448 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
3449 break;
3450 fallthrough;
3451
3452 case HCI_AUTO_CONN_DIRECT:
3453 case HCI_AUTO_CONN_ALWAYS:
3454 hci_pend_le_list_del_init(params);
3455 hci_pend_le_list_add(params, &hdev->pend_le_conns);
3456 hci_update_passive_scan(hdev);
3457 break;
3458
3459 default:
3460 break;
3461 }
3462 }
3463
3464 hci_disconn_cfm(conn, ev->reason);
3465
3466 /* Re-enable advertising if necessary, since it might
3467 * have been disabled by the connection. From the
3468 * HCI_LE_Set_Advertise_Enable command description in
3469 * the core specification (v4.0):
3470 * "The Controller shall continue advertising until the Host
3471 * issues an LE_Set_Advertise_Enable command with
3472 * Advertising_Enable set to 0x00 (Advertising is disabled)
3473 * or until a connection is created or until the Advertising
3474 * is timed out due to Directed Advertising."
3475 */
3476 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
3477 hdev->cur_adv_instance = conn->adv_instance;
3478 hci_enable_advertising(hdev);
3479 }
3480
3481 hci_conn_del(conn);
3482
3483unlock:
3484 hci_dev_unlock(hdev);
3485}
3486
3487static void hci_auth_complete_evt(struct hci_dev *hdev, void *data,
3488 struct sk_buff *skb)
3489{
3490 struct hci_ev_auth_complete *ev = data;
3491 struct hci_conn *conn;
3492
3493 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3494
3495 hci_dev_lock(hdev);
3496
3497 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3498 if (!conn)
3499 goto unlock;
3500
3501 if (!ev->status) {
3502 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3503 set_bit(HCI_CONN_AUTH, &conn->flags);
3504 conn->sec_level = conn->pending_sec_level;
3505 } else {
3506 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3507 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3508
3509 mgmt_auth_failed(conn, ev->status);
3510 }
3511
3512 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3513
3514 if (conn->state == BT_CONFIG) {
3515 if (!ev->status && hci_conn_ssp_enabled(conn)) {
3516 struct hci_cp_set_conn_encrypt cp;
3517 cp.handle = ev->handle;
3518 cp.encrypt = 0x01;
3519 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3520 &cp);
3521 } else {
3522 conn->state = BT_CONNECTED;
3523 hci_connect_cfm(conn, ev->status);
3524 hci_conn_drop(conn);
3525 }
3526 } else {
3527 hci_auth_cfm(conn, ev->status);
3528
3529 hci_conn_hold(conn);
3530 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3531 hci_conn_drop(conn);
3532 }
3533
3534 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
3535 if (!ev->status) {
3536 struct hci_cp_set_conn_encrypt cp;
3537 cp.handle = ev->handle;
3538 cp.encrypt = 0x01;
3539 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
3540 &cp);
3541 } else {
3542 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3543 hci_encrypt_cfm(conn, ev->status);
3544 }
3545 }
3546
3547unlock:
3548 hci_dev_unlock(hdev);
3549}
3550
3551static void hci_remote_name_evt(struct hci_dev *hdev, void *data,
3552 struct sk_buff *skb)
3553{
3554 struct hci_ev_remote_name *ev = data;
3555 struct hci_conn *conn;
3556
3557 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3558
3559 hci_conn_check_pending(hdev);
3560
3561 hci_dev_lock(hdev);
3562
3563 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3564
3565 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3566 goto check_auth;
3567
3568 if (ev->status == 0)
3569 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
3570 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
3571 else
3572 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
3573
3574check_auth:
3575 if (!conn)
3576 goto unlock;
3577
3578 if (!hci_outgoing_auth_needed(hdev, conn))
3579 goto unlock;
3580
3581 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
3582 struct hci_cp_auth_requested cp;
3583
3584 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
3585
3586 cp.handle = __cpu_to_le16(conn->handle);
3587 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
3588 }
3589
3590unlock:
3591 hci_dev_unlock(hdev);
3592}
3593
3594static void hci_encrypt_change_evt(struct hci_dev *hdev, void *data,
3595 struct sk_buff *skb)
3596{
3597 struct hci_ev_encrypt_change *ev = data;
3598 struct hci_conn *conn;
3599
3600 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3601
3602 hci_dev_lock(hdev);
3603
3604 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3605 if (!conn)
3606 goto unlock;
3607
3608 if (!ev->status) {
3609 if (ev->encrypt) {
3610 /* Encryption implies authentication */
3611 set_bit(HCI_CONN_AUTH, &conn->flags);
3612 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
3613 conn->sec_level = conn->pending_sec_level;
3614
3615 /* P-256 authentication key implies FIPS */
3616 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
3617 set_bit(HCI_CONN_FIPS, &conn->flags);
3618
3619 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
3620 conn->type == LE_LINK)
3621 set_bit(HCI_CONN_AES_CCM, &conn->flags);
3622 } else {
3623 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
3624 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
3625 }
3626 }
3627
3628 /* We should disregard the current RPA and generate a new one
3629 * whenever the encryption procedure fails.
3630 */
3631 if (ev->status && conn->type == LE_LINK) {
3632 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
3633 hci_adv_instances_set_rpa_expired(hdev, true);
3634 }
3635
3636 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3637
3638 /* Check link security requirements are met */
3639 if (!hci_conn_check_link_mode(conn))
3640 ev->status = HCI_ERROR_AUTH_FAILURE;
3641
3642 if (ev->status && conn->state == BT_CONNECTED) {
3643 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3644 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3645
3646 /* Notify upper layers so they can cleanup before
3647 * disconnecting.
3648 */
3649 hci_encrypt_cfm(conn, ev->status);
3650 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3651 hci_conn_drop(conn);
3652 goto unlock;
3653 }
3654
3655 /* Try reading the encryption key size for encrypted ACL links */
3656 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
3657 struct hci_cp_read_enc_key_size cp;
3658
3659 /* Only send HCI_Read_Encryption_Key_Size if the
3660 * controller really supports it. If it doesn't, assume
3661 * the default size (16).
3662 */
3663 if (!(hdev->commands[20] & 0x10)) {
3664 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3665 goto notify;
3666 }
3667
3668 cp.handle = cpu_to_le16(conn->handle);
3669 if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE,
3670 sizeof(cp), &cp)) {
3671 bt_dev_err(hdev, "sending read key size failed");
3672 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3673 goto notify;
3674 }
3675
3676 goto unlock;
3677 }
3678
3679 /* Set the default Authenticated Payload Timeout after
3680 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
3681 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3682 * sent when the link is active and Encryption is enabled, the conn
3683 * type can be either LE or ACL and controller must support LMP Ping.
3684 * Ensure for AES-CCM encryption as well.
3685 */
3686 if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3687 test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
3688 ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
3689 (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
3690 struct hci_cp_write_auth_payload_to cp;
3691
3692 cp.handle = cpu_to_le16(conn->handle);
3693 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
3694 if (hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3695 sizeof(cp), &cp))
3696 bt_dev_err(hdev, "write auth payload timeout failed");
3697 }
3698
3699notify:
3700 hci_encrypt_cfm(conn, ev->status);
3701
3702unlock:
3703 hci_dev_unlock(hdev);
3704}
3705
3706static void hci_change_link_key_complete_evt(struct hci_dev *hdev, void *data,
3707 struct sk_buff *skb)
3708{
3709 struct hci_ev_change_link_key_complete *ev = data;
3710 struct hci_conn *conn;
3711
3712 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3713
3714 hci_dev_lock(hdev);
3715
3716 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3717 if (conn) {
3718 if (!ev->status)
3719 set_bit(HCI_CONN_SECURE, &conn->flags);
3720
3721 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3722
3723 hci_key_change_cfm(conn, ev->status);
3724 }
3725
3726 hci_dev_unlock(hdev);
3727}
3728
3729static void hci_remote_features_evt(struct hci_dev *hdev, void *data,
3730 struct sk_buff *skb)
3731{
3732 struct hci_ev_remote_features *ev = data;
3733 struct hci_conn *conn;
3734
3735 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
3736
3737 hci_dev_lock(hdev);
3738
3739 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3740 if (!conn)
3741 goto unlock;
3742
3743 if (!ev->status)
3744 memcpy(conn->features[0], ev->features, 8);
3745
3746 if (conn->state != BT_CONFIG)
3747 goto unlock;
3748
3749 if (!ev->status && lmp_ext_feat_capable(hdev) &&
3750 lmp_ext_feat_capable(conn)) {
3751 struct hci_cp_read_remote_ext_features cp;
3752 cp.handle = ev->handle;
3753 cp.page = 0x01;
3754 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
3755 sizeof(cp), &cp);
3756 goto unlock;
3757 }
3758
3759 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3760 struct hci_cp_remote_name_req cp;
3761 memset(&cp, 0, sizeof(cp));
3762 bacpy(&cp.bdaddr, &conn->dst);
3763 cp.pscan_rep_mode = 0x02;
3764 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3765 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3766 mgmt_device_connected(hdev, conn, NULL, 0);
3767
3768 if (!hci_outgoing_auth_needed(hdev, conn)) {
3769 conn->state = BT_CONNECTED;
3770 hci_connect_cfm(conn, ev->status);
3771 hci_conn_drop(conn);
3772 }
3773
3774unlock:
3775 hci_dev_unlock(hdev);
3776}
3777
3778static inline void handle_cmd_cnt_and_timer(struct hci_dev *hdev, u8 ncmd)
3779{
3780 cancel_delayed_work(&hdev->cmd_timer);
3781
3782 rcu_read_lock();
3783 if (!test_bit(HCI_RESET, &hdev->flags)) {
3784 if (ncmd) {
3785 cancel_delayed_work(&hdev->ncmd_timer);
3786 atomic_set(&hdev->cmd_cnt, 1);
3787 } else {
3788 if (!hci_dev_test_flag(hdev, HCI_CMD_DRAIN_WORKQUEUE))
3789 queue_delayed_work(hdev->workqueue, &hdev->ncmd_timer,
3790 HCI_NCMD_TIMEOUT);
3791 }
3792 }
3793 rcu_read_unlock();
3794}
3795
3796static u8 hci_cc_le_read_buffer_size_v2(struct hci_dev *hdev, void *data,
3797 struct sk_buff *skb)
3798{
3799 struct hci_rp_le_read_buffer_size_v2 *rp = data;
3800
3801 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3802
3803 if (rp->status)
3804 return rp->status;
3805
3806 hdev->le_mtu = __le16_to_cpu(rp->acl_mtu);
3807 hdev->le_pkts = rp->acl_max_pkt;
3808 hdev->iso_mtu = __le16_to_cpu(rp->iso_mtu);
3809 hdev->iso_pkts = rp->iso_max_pkt;
3810
3811 hdev->le_cnt = hdev->le_pkts;
3812 hdev->iso_cnt = hdev->iso_pkts;
3813
3814 BT_DBG("%s acl mtu %d:%d iso mtu %d:%d", hdev->name, hdev->acl_mtu,
3815 hdev->acl_pkts, hdev->iso_mtu, hdev->iso_pkts);
3816
3817 return rp->status;
3818}
3819
3820static void hci_unbound_cis_failed(struct hci_dev *hdev, u8 cig, u8 status)
3821{
3822 struct hci_conn *conn, *tmp;
3823
3824 lockdep_assert_held(&hdev->lock);
3825
3826 list_for_each_entry_safe(conn, tmp, &hdev->conn_hash.list, list) {
3827 if (conn->type != ISO_LINK || !bacmp(&conn->dst, BDADDR_ANY) ||
3828 conn->state == BT_OPEN || conn->iso_qos.ucast.cig != cig)
3829 continue;
3830
3831 if (HCI_CONN_HANDLE_UNSET(conn->handle))
3832 hci_conn_failed(conn, status);
3833 }
3834}
3835
3836static u8 hci_cc_le_set_cig_params(struct hci_dev *hdev, void *data,
3837 struct sk_buff *skb)
3838{
3839 struct hci_rp_le_set_cig_params *rp = data;
3840 struct hci_cp_le_set_cig_params *cp;
3841 struct hci_conn *conn;
3842 u8 status = rp->status;
3843 bool pending = false;
3844 int i;
3845
3846 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3847
3848 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_CIG_PARAMS);
3849 if (!rp->status && (!cp || rp->num_handles != cp->num_cis ||
3850 rp->cig_id != cp->cig_id)) {
3851 bt_dev_err(hdev, "unexpected Set CIG Parameters response data");
3852 status = HCI_ERROR_UNSPECIFIED;
3853 }
3854
3855 hci_dev_lock(hdev);
3856
3857 /* BLUETOOTH CORE SPECIFICATION Version 5.4 | Vol 4, Part E page 2554
3858 *
3859 * If the Status return parameter is non-zero, then the state of the CIG
3860 * and its CIS configurations shall not be changed by the command. If
3861 * the CIG did not already exist, it shall not be created.
3862 */
3863 if (status) {
3864 /* Keep current configuration, fail only the unbound CIS */
3865 hci_unbound_cis_failed(hdev, rp->cig_id, status);
3866 goto unlock;
3867 }
3868
3869 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 2553
3870 *
3871 * If the Status return parameter is zero, then the Controller shall
3872 * set the Connection_Handle arrayed return parameter to the connection
3873 * handle(s) corresponding to the CIS configurations specified in
3874 * the CIS_IDs command parameter, in the same order.
3875 */
3876 for (i = 0; i < rp->num_handles; ++i) {
3877 conn = hci_conn_hash_lookup_cis(hdev, NULL, 0, rp->cig_id,
3878 cp->cis[i].cis_id);
3879 if (!conn || !bacmp(&conn->dst, BDADDR_ANY))
3880 continue;
3881
3882 if (conn->state != BT_BOUND && conn->state != BT_CONNECT)
3883 continue;
3884
3885 if (hci_conn_set_handle(conn, __le16_to_cpu(rp->handle[i])))
3886 continue;
3887
3888 if (conn->state == BT_CONNECT)
3889 pending = true;
3890 }
3891
3892unlock:
3893 if (pending)
3894 hci_le_create_cis_pending(hdev);
3895
3896 hci_dev_unlock(hdev);
3897
3898 return rp->status;
3899}
3900
3901static u8 hci_cc_le_setup_iso_path(struct hci_dev *hdev, void *data,
3902 struct sk_buff *skb)
3903{
3904 struct hci_rp_le_setup_iso_path *rp = data;
3905 struct hci_cp_le_setup_iso_path *cp;
3906 struct hci_conn *conn;
3907
3908 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3909
3910 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SETUP_ISO_PATH);
3911 if (!cp)
3912 return rp->status;
3913
3914 hci_dev_lock(hdev);
3915
3916 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3917 if (!conn)
3918 goto unlock;
3919
3920 if (rp->status) {
3921 hci_connect_cfm(conn, rp->status);
3922 hci_conn_del(conn);
3923 goto unlock;
3924 }
3925
3926 switch (cp->direction) {
3927 /* Input (Host to Controller) */
3928 case 0x00:
3929 /* Only confirm connection if output only */
3930 if (conn->iso_qos.ucast.out.sdu && !conn->iso_qos.ucast.in.sdu)
3931 hci_connect_cfm(conn, rp->status);
3932 break;
3933 /* Output (Controller to Host) */
3934 case 0x01:
3935 /* Confirm connection since conn->iso_qos is always configured
3936 * last.
3937 */
3938 hci_connect_cfm(conn, rp->status);
3939 break;
3940 }
3941
3942unlock:
3943 hci_dev_unlock(hdev);
3944 return rp->status;
3945}
3946
3947static void hci_cs_le_create_big(struct hci_dev *hdev, u8 status)
3948{
3949 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3950}
3951
3952static u8 hci_cc_set_per_adv_param(struct hci_dev *hdev, void *data,
3953 struct sk_buff *skb)
3954{
3955 struct hci_ev_status *rp = data;
3956 struct hci_cp_le_set_per_adv_params *cp;
3957
3958 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3959
3960 if (rp->status)
3961 return rp->status;
3962
3963 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_PARAMS);
3964 if (!cp)
3965 return rp->status;
3966
3967 /* TODO: set the conn state */
3968 return rp->status;
3969}
3970
3971static u8 hci_cc_le_set_per_adv_enable(struct hci_dev *hdev, void *data,
3972 struct sk_buff *skb)
3973{
3974 struct hci_ev_status *rp = data;
3975 struct hci_cp_le_set_per_adv_enable *cp;
3976 struct adv_info *adv = NULL, *n;
3977 u8 per_adv_cnt = 0;
3978
3979 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3980
3981 if (rp->status)
3982 return rp->status;
3983
3984 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_ENABLE);
3985 if (!cp)
3986 return rp->status;
3987
3988 hci_dev_lock(hdev);
3989
3990 adv = hci_find_adv_instance(hdev, cp->handle);
3991
3992 if (cp->enable) {
3993 hci_dev_set_flag(hdev, HCI_LE_PER_ADV);
3994
3995 if (adv)
3996 adv->enabled = true;
3997 } else {
3998 /* If just one instance was disabled check if there are
3999 * any other instance enabled before clearing HCI_LE_PER_ADV.
4000 * The current periodic adv instance will be marked as
4001 * disabled once extended advertising is also disabled.
4002 */
4003 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
4004 list) {
4005 if (adv->periodic && adv->enabled)
4006 per_adv_cnt++;
4007 }
4008
4009 if (per_adv_cnt > 1)
4010 goto unlock;
4011
4012 hci_dev_clear_flag(hdev, HCI_LE_PER_ADV);
4013 }
4014
4015unlock:
4016 hci_dev_unlock(hdev);
4017
4018 return rp->status;
4019}
4020
4021#define HCI_CC_VL(_op, _func, _min, _max) \
4022{ \
4023 .op = _op, \
4024 .func = _func, \
4025 .min_len = _min, \
4026 .max_len = _max, \
4027}
4028
4029#define HCI_CC(_op, _func, _len) \
4030 HCI_CC_VL(_op, _func, _len, _len)
4031
4032#define HCI_CC_STATUS(_op, _func) \
4033 HCI_CC(_op, _func, sizeof(struct hci_ev_status))
4034
4035static const struct hci_cc {
4036 u16 op;
4037 u8 (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
4038 u16 min_len;
4039 u16 max_len;
4040} hci_cc_table[] = {
4041 HCI_CC_STATUS(HCI_OP_INQUIRY_CANCEL, hci_cc_inquiry_cancel),
4042 HCI_CC_STATUS(HCI_OP_PERIODIC_INQ, hci_cc_periodic_inq),
4043 HCI_CC_STATUS(HCI_OP_EXIT_PERIODIC_INQ, hci_cc_exit_periodic_inq),
4044 HCI_CC_STATUS(HCI_OP_REMOTE_NAME_REQ_CANCEL,
4045 hci_cc_remote_name_req_cancel),
4046 HCI_CC(HCI_OP_ROLE_DISCOVERY, hci_cc_role_discovery,
4047 sizeof(struct hci_rp_role_discovery)),
4048 HCI_CC(HCI_OP_READ_LINK_POLICY, hci_cc_read_link_policy,
4049 sizeof(struct hci_rp_read_link_policy)),
4050 HCI_CC(HCI_OP_WRITE_LINK_POLICY, hci_cc_write_link_policy,
4051 sizeof(struct hci_rp_write_link_policy)),
4052 HCI_CC(HCI_OP_READ_DEF_LINK_POLICY, hci_cc_read_def_link_policy,
4053 sizeof(struct hci_rp_read_def_link_policy)),
4054 HCI_CC_STATUS(HCI_OP_WRITE_DEF_LINK_POLICY,
4055 hci_cc_write_def_link_policy),
4056 HCI_CC_STATUS(HCI_OP_RESET, hci_cc_reset),
4057 HCI_CC(HCI_OP_READ_STORED_LINK_KEY, hci_cc_read_stored_link_key,
4058 sizeof(struct hci_rp_read_stored_link_key)),
4059 HCI_CC(HCI_OP_DELETE_STORED_LINK_KEY, hci_cc_delete_stored_link_key,
4060 sizeof(struct hci_rp_delete_stored_link_key)),
4061 HCI_CC_STATUS(HCI_OP_WRITE_LOCAL_NAME, hci_cc_write_local_name),
4062 HCI_CC(HCI_OP_READ_LOCAL_NAME, hci_cc_read_local_name,
4063 sizeof(struct hci_rp_read_local_name)),
4064 HCI_CC_STATUS(HCI_OP_WRITE_AUTH_ENABLE, hci_cc_write_auth_enable),
4065 HCI_CC_STATUS(HCI_OP_WRITE_ENCRYPT_MODE, hci_cc_write_encrypt_mode),
4066 HCI_CC_STATUS(HCI_OP_WRITE_SCAN_ENABLE, hci_cc_write_scan_enable),
4067 HCI_CC_STATUS(HCI_OP_SET_EVENT_FLT, hci_cc_set_event_filter),
4068 HCI_CC(HCI_OP_READ_CLASS_OF_DEV, hci_cc_read_class_of_dev,
4069 sizeof(struct hci_rp_read_class_of_dev)),
4070 HCI_CC_STATUS(HCI_OP_WRITE_CLASS_OF_DEV, hci_cc_write_class_of_dev),
4071 HCI_CC(HCI_OP_READ_VOICE_SETTING, hci_cc_read_voice_setting,
4072 sizeof(struct hci_rp_read_voice_setting)),
4073 HCI_CC_STATUS(HCI_OP_WRITE_VOICE_SETTING, hci_cc_write_voice_setting),
4074 HCI_CC(HCI_OP_READ_NUM_SUPPORTED_IAC, hci_cc_read_num_supported_iac,
4075 sizeof(struct hci_rp_read_num_supported_iac)),
4076 HCI_CC_STATUS(HCI_OP_WRITE_SSP_MODE, hci_cc_write_ssp_mode),
4077 HCI_CC_STATUS(HCI_OP_WRITE_SC_SUPPORT, hci_cc_write_sc_support),
4078 HCI_CC(HCI_OP_READ_AUTH_PAYLOAD_TO, hci_cc_read_auth_payload_timeout,
4079 sizeof(struct hci_rp_read_auth_payload_to)),
4080 HCI_CC(HCI_OP_WRITE_AUTH_PAYLOAD_TO, hci_cc_write_auth_payload_timeout,
4081 sizeof(struct hci_rp_write_auth_payload_to)),
4082 HCI_CC(HCI_OP_READ_LOCAL_VERSION, hci_cc_read_local_version,
4083 sizeof(struct hci_rp_read_local_version)),
4084 HCI_CC(HCI_OP_READ_LOCAL_COMMANDS, hci_cc_read_local_commands,
4085 sizeof(struct hci_rp_read_local_commands)),
4086 HCI_CC(HCI_OP_READ_LOCAL_FEATURES, hci_cc_read_local_features,
4087 sizeof(struct hci_rp_read_local_features)),
4088 HCI_CC(HCI_OP_READ_LOCAL_EXT_FEATURES, hci_cc_read_local_ext_features,
4089 sizeof(struct hci_rp_read_local_ext_features)),
4090 HCI_CC(HCI_OP_READ_BUFFER_SIZE, hci_cc_read_buffer_size,
4091 sizeof(struct hci_rp_read_buffer_size)),
4092 HCI_CC(HCI_OP_READ_BD_ADDR, hci_cc_read_bd_addr,
4093 sizeof(struct hci_rp_read_bd_addr)),
4094 HCI_CC(HCI_OP_READ_LOCAL_PAIRING_OPTS, hci_cc_read_local_pairing_opts,
4095 sizeof(struct hci_rp_read_local_pairing_opts)),
4096 HCI_CC(HCI_OP_READ_PAGE_SCAN_ACTIVITY, hci_cc_read_page_scan_activity,
4097 sizeof(struct hci_rp_read_page_scan_activity)),
4098 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
4099 hci_cc_write_page_scan_activity),
4100 HCI_CC(HCI_OP_READ_PAGE_SCAN_TYPE, hci_cc_read_page_scan_type,
4101 sizeof(struct hci_rp_read_page_scan_type)),
4102 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_TYPE, hci_cc_write_page_scan_type),
4103 HCI_CC(HCI_OP_READ_DATA_BLOCK_SIZE, hci_cc_read_data_block_size,
4104 sizeof(struct hci_rp_read_data_block_size)),
4105 HCI_CC(HCI_OP_READ_FLOW_CONTROL_MODE, hci_cc_read_flow_control_mode,
4106 sizeof(struct hci_rp_read_flow_control_mode)),
4107 HCI_CC(HCI_OP_READ_LOCAL_AMP_INFO, hci_cc_read_local_amp_info,
4108 sizeof(struct hci_rp_read_local_amp_info)),
4109 HCI_CC(HCI_OP_READ_CLOCK, hci_cc_read_clock,
4110 sizeof(struct hci_rp_read_clock)),
4111 HCI_CC(HCI_OP_READ_ENC_KEY_SIZE, hci_cc_read_enc_key_size,
4112 sizeof(struct hci_rp_read_enc_key_size)),
4113 HCI_CC(HCI_OP_READ_INQ_RSP_TX_POWER, hci_cc_read_inq_rsp_tx_power,
4114 sizeof(struct hci_rp_read_inq_rsp_tx_power)),
4115 HCI_CC(HCI_OP_READ_DEF_ERR_DATA_REPORTING,
4116 hci_cc_read_def_err_data_reporting,
4117 sizeof(struct hci_rp_read_def_err_data_reporting)),
4118 HCI_CC_STATUS(HCI_OP_WRITE_DEF_ERR_DATA_REPORTING,
4119 hci_cc_write_def_err_data_reporting),
4120 HCI_CC(HCI_OP_PIN_CODE_REPLY, hci_cc_pin_code_reply,
4121 sizeof(struct hci_rp_pin_code_reply)),
4122 HCI_CC(HCI_OP_PIN_CODE_NEG_REPLY, hci_cc_pin_code_neg_reply,
4123 sizeof(struct hci_rp_pin_code_neg_reply)),
4124 HCI_CC(HCI_OP_READ_LOCAL_OOB_DATA, hci_cc_read_local_oob_data,
4125 sizeof(struct hci_rp_read_local_oob_data)),
4126 HCI_CC(HCI_OP_READ_LOCAL_OOB_EXT_DATA, hci_cc_read_local_oob_ext_data,
4127 sizeof(struct hci_rp_read_local_oob_ext_data)),
4128 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE, hci_cc_le_read_buffer_size,
4129 sizeof(struct hci_rp_le_read_buffer_size)),
4130 HCI_CC(HCI_OP_LE_READ_LOCAL_FEATURES, hci_cc_le_read_local_features,
4131 sizeof(struct hci_rp_le_read_local_features)),
4132 HCI_CC(HCI_OP_LE_READ_ADV_TX_POWER, hci_cc_le_read_adv_tx_power,
4133 sizeof(struct hci_rp_le_read_adv_tx_power)),
4134 HCI_CC(HCI_OP_USER_CONFIRM_REPLY, hci_cc_user_confirm_reply,
4135 sizeof(struct hci_rp_user_confirm_reply)),
4136 HCI_CC(HCI_OP_USER_CONFIRM_NEG_REPLY, hci_cc_user_confirm_neg_reply,
4137 sizeof(struct hci_rp_user_confirm_reply)),
4138 HCI_CC(HCI_OP_USER_PASSKEY_REPLY, hci_cc_user_passkey_reply,
4139 sizeof(struct hci_rp_user_confirm_reply)),
4140 HCI_CC(HCI_OP_USER_PASSKEY_NEG_REPLY, hci_cc_user_passkey_neg_reply,
4141 sizeof(struct hci_rp_user_confirm_reply)),
4142 HCI_CC_STATUS(HCI_OP_LE_SET_RANDOM_ADDR, hci_cc_le_set_random_addr),
4143 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_ENABLE, hci_cc_le_set_adv_enable),
4144 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_PARAM, hci_cc_le_set_scan_param),
4145 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_ENABLE, hci_cc_le_set_scan_enable),
4146 HCI_CC(HCI_OP_LE_READ_ACCEPT_LIST_SIZE,
4147 hci_cc_le_read_accept_list_size,
4148 sizeof(struct hci_rp_le_read_accept_list_size)),
4149 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ACCEPT_LIST, hci_cc_le_clear_accept_list),
4150 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_ACCEPT_LIST,
4151 hci_cc_le_add_to_accept_list),
4152 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_ACCEPT_LIST,
4153 hci_cc_le_del_from_accept_list),
4154 HCI_CC(HCI_OP_LE_READ_SUPPORTED_STATES, hci_cc_le_read_supported_states,
4155 sizeof(struct hci_rp_le_read_supported_states)),
4156 HCI_CC(HCI_OP_LE_READ_DEF_DATA_LEN, hci_cc_le_read_def_data_len,
4157 sizeof(struct hci_rp_le_read_def_data_len)),
4158 HCI_CC_STATUS(HCI_OP_LE_WRITE_DEF_DATA_LEN,
4159 hci_cc_le_write_def_data_len),
4160 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_RESOLV_LIST,
4161 hci_cc_le_add_to_resolv_list),
4162 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_RESOLV_LIST,
4163 hci_cc_le_del_from_resolv_list),
4164 HCI_CC_STATUS(HCI_OP_LE_CLEAR_RESOLV_LIST,
4165 hci_cc_le_clear_resolv_list),
4166 HCI_CC(HCI_OP_LE_READ_RESOLV_LIST_SIZE, hci_cc_le_read_resolv_list_size,
4167 sizeof(struct hci_rp_le_read_resolv_list_size)),
4168 HCI_CC_STATUS(HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
4169 hci_cc_le_set_addr_resolution_enable),
4170 HCI_CC(HCI_OP_LE_READ_MAX_DATA_LEN, hci_cc_le_read_max_data_len,
4171 sizeof(struct hci_rp_le_read_max_data_len)),
4172 HCI_CC_STATUS(HCI_OP_WRITE_LE_HOST_SUPPORTED,
4173 hci_cc_write_le_host_supported),
4174 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_PARAM, hci_cc_set_adv_param),
4175 HCI_CC(HCI_OP_READ_RSSI, hci_cc_read_rssi,
4176 sizeof(struct hci_rp_read_rssi)),
4177 HCI_CC(HCI_OP_READ_TX_POWER, hci_cc_read_tx_power,
4178 sizeof(struct hci_rp_read_tx_power)),
4179 HCI_CC_STATUS(HCI_OP_WRITE_SSP_DEBUG_MODE, hci_cc_write_ssp_debug_mode),
4180 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_PARAMS,
4181 hci_cc_le_set_ext_scan_param),
4182 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_ENABLE,
4183 hci_cc_le_set_ext_scan_enable),
4184 HCI_CC_STATUS(HCI_OP_LE_SET_DEFAULT_PHY, hci_cc_le_set_default_phy),
4185 HCI_CC(HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS,
4186 hci_cc_le_read_num_adv_sets,
4187 sizeof(struct hci_rp_le_read_num_supported_adv_sets)),
4188 HCI_CC(HCI_OP_LE_SET_EXT_ADV_PARAMS, hci_cc_set_ext_adv_param,
4189 sizeof(struct hci_rp_le_set_ext_adv_params)),
4190 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_ADV_ENABLE,
4191 hci_cc_le_set_ext_adv_enable),
4192 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_SET_RAND_ADDR,
4193 hci_cc_le_set_adv_set_random_addr),
4194 HCI_CC_STATUS(HCI_OP_LE_REMOVE_ADV_SET, hci_cc_le_remove_adv_set),
4195 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ADV_SETS, hci_cc_le_clear_adv_sets),
4196 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_PARAMS, hci_cc_set_per_adv_param),
4197 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_ENABLE,
4198 hci_cc_le_set_per_adv_enable),
4199 HCI_CC(HCI_OP_LE_READ_TRANSMIT_POWER, hci_cc_le_read_transmit_power,
4200 sizeof(struct hci_rp_le_read_transmit_power)),
4201 HCI_CC_STATUS(HCI_OP_LE_SET_PRIVACY_MODE, hci_cc_le_set_privacy_mode),
4202 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE_V2, hci_cc_le_read_buffer_size_v2,
4203 sizeof(struct hci_rp_le_read_buffer_size_v2)),
4204 HCI_CC_VL(HCI_OP_LE_SET_CIG_PARAMS, hci_cc_le_set_cig_params,
4205 sizeof(struct hci_rp_le_set_cig_params), HCI_MAX_EVENT_SIZE),
4206 HCI_CC(HCI_OP_LE_SETUP_ISO_PATH, hci_cc_le_setup_iso_path,
4207 sizeof(struct hci_rp_le_setup_iso_path)),
4208};
4209
4210static u8 hci_cc_func(struct hci_dev *hdev, const struct hci_cc *cc,
4211 struct sk_buff *skb)
4212{
4213 void *data;
4214
4215 if (skb->len < cc->min_len) {
4216 bt_dev_err(hdev, "unexpected cc 0x%4.4x length: %u < %u",
4217 cc->op, skb->len, cc->min_len);
4218 return HCI_ERROR_UNSPECIFIED;
4219 }
4220
4221 /* Just warn if the length is over max_len size it still be possible to
4222 * partially parse the cc so leave to callback to decide if that is
4223 * acceptable.
4224 */
4225 if (skb->len > cc->max_len)
4226 bt_dev_warn(hdev, "unexpected cc 0x%4.4x length: %u > %u",
4227 cc->op, skb->len, cc->max_len);
4228
4229 data = hci_cc_skb_pull(hdev, skb, cc->op, cc->min_len);
4230 if (!data)
4231 return HCI_ERROR_UNSPECIFIED;
4232
4233 return cc->func(hdev, data, skb);
4234}
4235
4236static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data,
4237 struct sk_buff *skb, u16 *opcode, u8 *status,
4238 hci_req_complete_t *req_complete,
4239 hci_req_complete_skb_t *req_complete_skb)
4240{
4241 struct hci_ev_cmd_complete *ev = data;
4242 int i;
4243
4244 *opcode = __le16_to_cpu(ev->opcode);
4245
4246 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4247
4248 for (i = 0; i < ARRAY_SIZE(hci_cc_table); i++) {
4249 if (hci_cc_table[i].op == *opcode) {
4250 *status = hci_cc_func(hdev, &hci_cc_table[i], skb);
4251 break;
4252 }
4253 }
4254
4255 if (i == ARRAY_SIZE(hci_cc_table)) {
4256 /* Unknown opcode, assume byte 0 contains the status, so
4257 * that e.g. __hci_cmd_sync() properly returns errors
4258 * for vendor specific commands send by HCI drivers.
4259 * If a vendor doesn't actually follow this convention we may
4260 * need to introduce a vendor CC table in order to properly set
4261 * the status.
4262 */
4263 *status = skb->data[0];
4264 }
4265
4266 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4267
4268 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
4269 req_complete_skb);
4270
4271 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4272 bt_dev_err(hdev,
4273 "unexpected event for opcode 0x%4.4x", *opcode);
4274 return;
4275 }
4276
4277 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4278 queue_work(hdev->workqueue, &hdev->cmd_work);
4279}
4280
4281static void hci_cs_le_create_cis(struct hci_dev *hdev, u8 status)
4282{
4283 struct hci_cp_le_create_cis *cp;
4284 bool pending = false;
4285 int i;
4286
4287 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4288
4289 if (!status)
4290 return;
4291
4292 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CIS);
4293 if (!cp)
4294 return;
4295
4296 hci_dev_lock(hdev);
4297
4298 /* Remove connection if command failed */
4299 for (i = 0; cp->num_cis; cp->num_cis--, i++) {
4300 struct hci_conn *conn;
4301 u16 handle;
4302
4303 handle = __le16_to_cpu(cp->cis[i].cis_handle);
4304
4305 conn = hci_conn_hash_lookup_handle(hdev, handle);
4306 if (conn) {
4307 if (test_and_clear_bit(HCI_CONN_CREATE_CIS,
4308 &conn->flags))
4309 pending = true;
4310 conn->state = BT_CLOSED;
4311 hci_connect_cfm(conn, status);
4312 hci_conn_del(conn);
4313 }
4314 }
4315
4316 if (pending)
4317 hci_le_create_cis_pending(hdev);
4318
4319 hci_dev_unlock(hdev);
4320}
4321
4322#define HCI_CS(_op, _func) \
4323{ \
4324 .op = _op, \
4325 .func = _func, \
4326}
4327
4328static const struct hci_cs {
4329 u16 op;
4330 void (*func)(struct hci_dev *hdev, __u8 status);
4331} hci_cs_table[] = {
4332 HCI_CS(HCI_OP_INQUIRY, hci_cs_inquiry),
4333 HCI_CS(HCI_OP_CREATE_CONN, hci_cs_create_conn),
4334 HCI_CS(HCI_OP_DISCONNECT, hci_cs_disconnect),
4335 HCI_CS(HCI_OP_ADD_SCO, hci_cs_add_sco),
4336 HCI_CS(HCI_OP_AUTH_REQUESTED, hci_cs_auth_requested),
4337 HCI_CS(HCI_OP_SET_CONN_ENCRYPT, hci_cs_set_conn_encrypt),
4338 HCI_CS(HCI_OP_REMOTE_NAME_REQ, hci_cs_remote_name_req),
4339 HCI_CS(HCI_OP_READ_REMOTE_FEATURES, hci_cs_read_remote_features),
4340 HCI_CS(HCI_OP_READ_REMOTE_EXT_FEATURES,
4341 hci_cs_read_remote_ext_features),
4342 HCI_CS(HCI_OP_SETUP_SYNC_CONN, hci_cs_setup_sync_conn),
4343 HCI_CS(HCI_OP_ENHANCED_SETUP_SYNC_CONN,
4344 hci_cs_enhanced_setup_sync_conn),
4345 HCI_CS(HCI_OP_SNIFF_MODE, hci_cs_sniff_mode),
4346 HCI_CS(HCI_OP_EXIT_SNIFF_MODE, hci_cs_exit_sniff_mode),
4347 HCI_CS(HCI_OP_SWITCH_ROLE, hci_cs_switch_role),
4348 HCI_CS(HCI_OP_LE_CREATE_CONN, hci_cs_le_create_conn),
4349 HCI_CS(HCI_OP_LE_READ_REMOTE_FEATURES, hci_cs_le_read_remote_features),
4350 HCI_CS(HCI_OP_LE_START_ENC, hci_cs_le_start_enc),
4351 HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn),
4352 HCI_CS(HCI_OP_LE_CREATE_CIS, hci_cs_le_create_cis),
4353 HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
4354};
4355
4356static void hci_cmd_status_evt(struct hci_dev *hdev, void *data,
4357 struct sk_buff *skb, u16 *opcode, u8 *status,
4358 hci_req_complete_t *req_complete,
4359 hci_req_complete_skb_t *req_complete_skb)
4360{
4361 struct hci_ev_cmd_status *ev = data;
4362 int i;
4363
4364 *opcode = __le16_to_cpu(ev->opcode);
4365 *status = ev->status;
4366
4367 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4368
4369 for (i = 0; i < ARRAY_SIZE(hci_cs_table); i++) {
4370 if (hci_cs_table[i].op == *opcode) {
4371 hci_cs_table[i].func(hdev, ev->status);
4372 break;
4373 }
4374 }
4375
4376 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
4377
4378 /* Indicate request completion if the command failed. Also, if
4379 * we're not waiting for a special event and we get a success
4380 * command status we should try to flag the request as completed
4381 * (since for this kind of commands there will not be a command
4382 * complete event).
4383 */
4384 if (ev->status || (hdev->sent_cmd && !hci_skb_event(hdev->sent_cmd))) {
4385 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
4386 req_complete_skb);
4387 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4388 bt_dev_err(hdev, "unexpected event for opcode 0x%4.4x",
4389 *opcode);
4390 return;
4391 }
4392 }
4393
4394 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4395 queue_work(hdev->workqueue, &hdev->cmd_work);
4396}
4397
4398static void hci_hardware_error_evt(struct hci_dev *hdev, void *data,
4399 struct sk_buff *skb)
4400{
4401 struct hci_ev_hardware_error *ev = data;
4402
4403 bt_dev_dbg(hdev, "code 0x%2.2x", ev->code);
4404
4405 hdev->hw_error_code = ev->code;
4406
4407 queue_work(hdev->req_workqueue, &hdev->error_reset);
4408}
4409
4410static void hci_role_change_evt(struct hci_dev *hdev, void *data,
4411 struct sk_buff *skb)
4412{
4413 struct hci_ev_role_change *ev = data;
4414 struct hci_conn *conn;
4415
4416 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4417
4418 hci_dev_lock(hdev);
4419
4420 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4421 if (conn) {
4422 if (!ev->status)
4423 conn->role = ev->role;
4424
4425 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
4426
4427 hci_role_switch_cfm(conn, ev->status, ev->role);
4428 }
4429
4430 hci_dev_unlock(hdev);
4431}
4432
4433static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
4434 struct sk_buff *skb)
4435{
4436 struct hci_ev_num_comp_pkts *ev = data;
4437 int i;
4438
4439 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_PKTS,
4440 flex_array_size(ev, handles, ev->num)))
4441 return;
4442
4443 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
4444 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
4445 return;
4446 }
4447
4448 bt_dev_dbg(hdev, "num %d", ev->num);
4449
4450 for (i = 0; i < ev->num; i++) {
4451 struct hci_comp_pkts_info *info = &ev->handles[i];
4452 struct hci_conn *conn;
4453 __u16 handle, count;
4454
4455 handle = __le16_to_cpu(info->handle);
4456 count = __le16_to_cpu(info->count);
4457
4458 conn = hci_conn_hash_lookup_handle(hdev, handle);
4459 if (!conn)
4460 continue;
4461
4462 conn->sent -= count;
4463
4464 switch (conn->type) {
4465 case ACL_LINK:
4466 hdev->acl_cnt += count;
4467 if (hdev->acl_cnt > hdev->acl_pkts)
4468 hdev->acl_cnt = hdev->acl_pkts;
4469 break;
4470
4471 case LE_LINK:
4472 if (hdev->le_pkts) {
4473 hdev->le_cnt += count;
4474 if (hdev->le_cnt > hdev->le_pkts)
4475 hdev->le_cnt = hdev->le_pkts;
4476 } else {
4477 hdev->acl_cnt += count;
4478 if (hdev->acl_cnt > hdev->acl_pkts)
4479 hdev->acl_cnt = hdev->acl_pkts;
4480 }
4481 break;
4482
4483 case SCO_LINK:
4484 hdev->sco_cnt += count;
4485 if (hdev->sco_cnt > hdev->sco_pkts)
4486 hdev->sco_cnt = hdev->sco_pkts;
4487 break;
4488
4489 case ISO_LINK:
4490 if (hdev->iso_pkts) {
4491 hdev->iso_cnt += count;
4492 if (hdev->iso_cnt > hdev->iso_pkts)
4493 hdev->iso_cnt = hdev->iso_pkts;
4494 } else if (hdev->le_pkts) {
4495 hdev->le_cnt += count;
4496 if (hdev->le_cnt > hdev->le_pkts)
4497 hdev->le_cnt = hdev->le_pkts;
4498 } else {
4499 hdev->acl_cnt += count;
4500 if (hdev->acl_cnt > hdev->acl_pkts)
4501 hdev->acl_cnt = hdev->acl_pkts;
4502 }
4503 break;
4504
4505 default:
4506 bt_dev_err(hdev, "unknown type %d conn %p",
4507 conn->type, conn);
4508 break;
4509 }
4510 }
4511
4512 queue_work(hdev->workqueue, &hdev->tx_work);
4513}
4514
4515static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
4516 __u16 handle)
4517{
4518 struct hci_chan *chan;
4519
4520 switch (hdev->dev_type) {
4521 case HCI_PRIMARY:
4522 return hci_conn_hash_lookup_handle(hdev, handle);
4523 case HCI_AMP:
4524 chan = hci_chan_lookup_handle(hdev, handle);
4525 if (chan)
4526 return chan->conn;
4527 break;
4528 default:
4529 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
4530 break;
4531 }
4532
4533 return NULL;
4534}
4535
4536static void hci_num_comp_blocks_evt(struct hci_dev *hdev, void *data,
4537 struct sk_buff *skb)
4538{
4539 struct hci_ev_num_comp_blocks *ev = data;
4540 int i;
4541
4542 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_BLOCKS,
4543 flex_array_size(ev, handles, ev->num_hndl)))
4544 return;
4545
4546 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
4547 bt_dev_err(hdev, "wrong event for mode %d",
4548 hdev->flow_ctl_mode);
4549 return;
4550 }
4551
4552 bt_dev_dbg(hdev, "num_blocks %d num_hndl %d", ev->num_blocks,
4553 ev->num_hndl);
4554
4555 for (i = 0; i < ev->num_hndl; i++) {
4556 struct hci_comp_blocks_info *info = &ev->handles[i];
4557 struct hci_conn *conn = NULL;
4558 __u16 handle, block_count;
4559
4560 handle = __le16_to_cpu(info->handle);
4561 block_count = __le16_to_cpu(info->blocks);
4562
4563 conn = __hci_conn_lookup_handle(hdev, handle);
4564 if (!conn)
4565 continue;
4566
4567 conn->sent -= block_count;
4568
4569 switch (conn->type) {
4570 case ACL_LINK:
4571 case AMP_LINK:
4572 hdev->block_cnt += block_count;
4573 if (hdev->block_cnt > hdev->num_blocks)
4574 hdev->block_cnt = hdev->num_blocks;
4575 break;
4576
4577 default:
4578 bt_dev_err(hdev, "unknown type %d conn %p",
4579 conn->type, conn);
4580 break;
4581 }
4582 }
4583
4584 queue_work(hdev->workqueue, &hdev->tx_work);
4585}
4586
4587static void hci_mode_change_evt(struct hci_dev *hdev, void *data,
4588 struct sk_buff *skb)
4589{
4590 struct hci_ev_mode_change *ev = data;
4591 struct hci_conn *conn;
4592
4593 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4594
4595 hci_dev_lock(hdev);
4596
4597 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4598 if (conn) {
4599 conn->mode = ev->mode;
4600
4601 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
4602 &conn->flags)) {
4603 if (conn->mode == HCI_CM_ACTIVE)
4604 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4605 else
4606 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
4607 }
4608
4609 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
4610 hci_sco_setup(conn, ev->status);
4611 }
4612
4613 hci_dev_unlock(hdev);
4614}
4615
4616static void hci_pin_code_request_evt(struct hci_dev *hdev, void *data,
4617 struct sk_buff *skb)
4618{
4619 struct hci_ev_pin_code_req *ev = data;
4620 struct hci_conn *conn;
4621
4622 bt_dev_dbg(hdev, "");
4623
4624 hci_dev_lock(hdev);
4625
4626 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4627 if (!conn)
4628 goto unlock;
4629
4630 if (conn->state == BT_CONNECTED) {
4631 hci_conn_hold(conn);
4632 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
4633 hci_conn_drop(conn);
4634 }
4635
4636 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
4637 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
4638 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
4639 sizeof(ev->bdaddr), &ev->bdaddr);
4640 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
4641 u8 secure;
4642
4643 if (conn->pending_sec_level == BT_SECURITY_HIGH)
4644 secure = 1;
4645 else
4646 secure = 0;
4647
4648 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
4649 }
4650
4651unlock:
4652 hci_dev_unlock(hdev);
4653}
4654
4655static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
4656{
4657 if (key_type == HCI_LK_CHANGED_COMBINATION)
4658 return;
4659
4660 conn->pin_length = pin_len;
4661 conn->key_type = key_type;
4662
4663 switch (key_type) {
4664 case HCI_LK_LOCAL_UNIT:
4665 case HCI_LK_REMOTE_UNIT:
4666 case HCI_LK_DEBUG_COMBINATION:
4667 return;
4668 case HCI_LK_COMBINATION:
4669 if (pin_len == 16)
4670 conn->pending_sec_level = BT_SECURITY_HIGH;
4671 else
4672 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4673 break;
4674 case HCI_LK_UNAUTH_COMBINATION_P192:
4675 case HCI_LK_UNAUTH_COMBINATION_P256:
4676 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4677 break;
4678 case HCI_LK_AUTH_COMBINATION_P192:
4679 conn->pending_sec_level = BT_SECURITY_HIGH;
4680 break;
4681 case HCI_LK_AUTH_COMBINATION_P256:
4682 conn->pending_sec_level = BT_SECURITY_FIPS;
4683 break;
4684 }
4685}
4686
4687static void hci_link_key_request_evt(struct hci_dev *hdev, void *data,
4688 struct sk_buff *skb)
4689{
4690 struct hci_ev_link_key_req *ev = data;
4691 struct hci_cp_link_key_reply cp;
4692 struct hci_conn *conn;
4693 struct link_key *key;
4694
4695 bt_dev_dbg(hdev, "");
4696
4697 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4698 return;
4699
4700 hci_dev_lock(hdev);
4701
4702 key = hci_find_link_key(hdev, &ev->bdaddr);
4703 if (!key) {
4704 bt_dev_dbg(hdev, "link key not found for %pMR", &ev->bdaddr);
4705 goto not_found;
4706 }
4707
4708 bt_dev_dbg(hdev, "found key type %u for %pMR", key->type, &ev->bdaddr);
4709
4710 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4711 if (conn) {
4712 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4713
4714 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
4715 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
4716 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
4717 bt_dev_dbg(hdev, "ignoring unauthenticated key");
4718 goto not_found;
4719 }
4720
4721 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
4722 (conn->pending_sec_level == BT_SECURITY_HIGH ||
4723 conn->pending_sec_level == BT_SECURITY_FIPS)) {
4724 bt_dev_dbg(hdev, "ignoring key unauthenticated for high security");
4725 goto not_found;
4726 }
4727
4728 conn_set_key(conn, key->type, key->pin_len);
4729 }
4730
4731 bacpy(&cp.bdaddr, &ev->bdaddr);
4732 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
4733
4734 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
4735
4736 hci_dev_unlock(hdev);
4737
4738 return;
4739
4740not_found:
4741 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
4742 hci_dev_unlock(hdev);
4743}
4744
4745static void hci_link_key_notify_evt(struct hci_dev *hdev, void *data,
4746 struct sk_buff *skb)
4747{
4748 struct hci_ev_link_key_notify *ev = data;
4749 struct hci_conn *conn;
4750 struct link_key *key;
4751 bool persistent;
4752 u8 pin_len = 0;
4753
4754 bt_dev_dbg(hdev, "");
4755
4756 hci_dev_lock(hdev);
4757
4758 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4759 if (!conn)
4760 goto unlock;
4761
4762 /* Ignore NULL link key against CVE-2020-26555 */
4763 if (!crypto_memneq(ev->link_key, ZERO_KEY, HCI_LINK_KEY_SIZE)) {
4764 bt_dev_dbg(hdev, "Ignore NULL link key (ZERO KEY) for %pMR",
4765 &ev->bdaddr);
4766 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
4767 hci_conn_drop(conn);
4768 goto unlock;
4769 }
4770
4771 hci_conn_hold(conn);
4772 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4773 hci_conn_drop(conn);
4774
4775 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4776 conn_set_key(conn, ev->key_type, conn->pin_length);
4777
4778 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4779 goto unlock;
4780
4781 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
4782 ev->key_type, pin_len, &persistent);
4783 if (!key)
4784 goto unlock;
4785
4786 /* Update connection information since adding the key will have
4787 * fixed up the type in the case of changed combination keys.
4788 */
4789 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
4790 conn_set_key(conn, key->type, key->pin_len);
4791
4792 mgmt_new_link_key(hdev, key, persistent);
4793
4794 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
4795 * is set. If it's not set simply remove the key from the kernel
4796 * list (we've still notified user space about it but with
4797 * store_hint being 0).
4798 */
4799 if (key->type == HCI_LK_DEBUG_COMBINATION &&
4800 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
4801 list_del_rcu(&key->list);
4802 kfree_rcu(key, rcu);
4803 goto unlock;
4804 }
4805
4806 if (persistent)
4807 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4808 else
4809 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4810
4811unlock:
4812 hci_dev_unlock(hdev);
4813}
4814
4815static void hci_clock_offset_evt(struct hci_dev *hdev, void *data,
4816 struct sk_buff *skb)
4817{
4818 struct hci_ev_clock_offset *ev = data;
4819 struct hci_conn *conn;
4820
4821 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4822
4823 hci_dev_lock(hdev);
4824
4825 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4826 if (conn && !ev->status) {
4827 struct inquiry_entry *ie;
4828
4829 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4830 if (ie) {
4831 ie->data.clock_offset = ev->clock_offset;
4832 ie->timestamp = jiffies;
4833 }
4834 }
4835
4836 hci_dev_unlock(hdev);
4837}
4838
4839static void hci_pkt_type_change_evt(struct hci_dev *hdev, void *data,
4840 struct sk_buff *skb)
4841{
4842 struct hci_ev_pkt_type_change *ev = data;
4843 struct hci_conn *conn;
4844
4845 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4846
4847 hci_dev_lock(hdev);
4848
4849 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4850 if (conn && !ev->status)
4851 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
4852
4853 hci_dev_unlock(hdev);
4854}
4855
4856static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, void *data,
4857 struct sk_buff *skb)
4858{
4859 struct hci_ev_pscan_rep_mode *ev = data;
4860 struct inquiry_entry *ie;
4861
4862 bt_dev_dbg(hdev, "");
4863
4864 hci_dev_lock(hdev);
4865
4866 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4867 if (ie) {
4868 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
4869 ie->timestamp = jiffies;
4870 }
4871
4872 hci_dev_unlock(hdev);
4873}
4874
4875static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
4876 struct sk_buff *skb)
4877{
4878 struct hci_ev_inquiry_result_rssi *ev = edata;
4879 struct inquiry_data data;
4880 int i;
4881
4882 bt_dev_dbg(hdev, "num_rsp %d", ev->num);
4883
4884 if (!ev->num)
4885 return;
4886
4887 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
4888 return;
4889
4890 hci_dev_lock(hdev);
4891
4892 if (skb->len == array_size(ev->num,
4893 sizeof(struct inquiry_info_rssi_pscan))) {
4894 struct inquiry_info_rssi_pscan *info;
4895
4896 for (i = 0; i < ev->num; i++) {
4897 u32 flags;
4898
4899 info = hci_ev_skb_pull(hdev, skb,
4900 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4901 sizeof(*info));
4902 if (!info) {
4903 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4904 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4905 goto unlock;
4906 }
4907
4908 bacpy(&data.bdaddr, &info->bdaddr);
4909 data.pscan_rep_mode = info->pscan_rep_mode;
4910 data.pscan_period_mode = info->pscan_period_mode;
4911 data.pscan_mode = info->pscan_mode;
4912 memcpy(data.dev_class, info->dev_class, 3);
4913 data.clock_offset = info->clock_offset;
4914 data.rssi = info->rssi;
4915 data.ssp_mode = 0x00;
4916
4917 flags = hci_inquiry_cache_update(hdev, &data, false);
4918
4919 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4920 info->dev_class, info->rssi,
4921 flags, NULL, 0, NULL, 0, 0);
4922 }
4923 } else if (skb->len == array_size(ev->num,
4924 sizeof(struct inquiry_info_rssi))) {
4925 struct inquiry_info_rssi *info;
4926
4927 for (i = 0; i < ev->num; i++) {
4928 u32 flags;
4929
4930 info = hci_ev_skb_pull(hdev, skb,
4931 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4932 sizeof(*info));
4933 if (!info) {
4934 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4935 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4936 goto unlock;
4937 }
4938
4939 bacpy(&data.bdaddr, &info->bdaddr);
4940 data.pscan_rep_mode = info->pscan_rep_mode;
4941 data.pscan_period_mode = info->pscan_period_mode;
4942 data.pscan_mode = 0x00;
4943 memcpy(data.dev_class, info->dev_class, 3);
4944 data.clock_offset = info->clock_offset;
4945 data.rssi = info->rssi;
4946 data.ssp_mode = 0x00;
4947
4948 flags = hci_inquiry_cache_update(hdev, &data, false);
4949
4950 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4951 info->dev_class, info->rssi,
4952 flags, NULL, 0, NULL, 0, 0);
4953 }
4954 } else {
4955 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4956 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
4957 }
4958unlock:
4959 hci_dev_unlock(hdev);
4960}
4961
4962static void hci_remote_ext_features_evt(struct hci_dev *hdev, void *data,
4963 struct sk_buff *skb)
4964{
4965 struct hci_ev_remote_ext_features *ev = data;
4966 struct hci_conn *conn;
4967
4968 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4969
4970 hci_dev_lock(hdev);
4971
4972 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4973 if (!conn)
4974 goto unlock;
4975
4976 if (ev->page < HCI_MAX_PAGES)
4977 memcpy(conn->features[ev->page], ev->features, 8);
4978
4979 if (!ev->status && ev->page == 0x01) {
4980 struct inquiry_entry *ie;
4981
4982 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4983 if (ie)
4984 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4985
4986 if (ev->features[0] & LMP_HOST_SSP) {
4987 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4988 } else {
4989 /* It is mandatory by the Bluetooth specification that
4990 * Extended Inquiry Results are only used when Secure
4991 * Simple Pairing is enabled, but some devices violate
4992 * this.
4993 *
4994 * To make these devices work, the internal SSP
4995 * enabled flag needs to be cleared if the remote host
4996 * features do not indicate SSP support */
4997 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4998 }
4999
5000 if (ev->features[0] & LMP_HOST_SC)
5001 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
5002 }
5003
5004 if (conn->state != BT_CONFIG)
5005 goto unlock;
5006
5007 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
5008 struct hci_cp_remote_name_req cp;
5009 memset(&cp, 0, sizeof(cp));
5010 bacpy(&cp.bdaddr, &conn->dst);
5011 cp.pscan_rep_mode = 0x02;
5012 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
5013 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5014 mgmt_device_connected(hdev, conn, NULL, 0);
5015
5016 if (!hci_outgoing_auth_needed(hdev, conn)) {
5017 conn->state = BT_CONNECTED;
5018 hci_connect_cfm(conn, ev->status);
5019 hci_conn_drop(conn);
5020 }
5021
5022unlock:
5023 hci_dev_unlock(hdev);
5024}
5025
5026static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
5027 struct sk_buff *skb)
5028{
5029 struct hci_ev_sync_conn_complete *ev = data;
5030 struct hci_conn *conn;
5031 u8 status = ev->status;
5032
5033 switch (ev->link_type) {
5034 case SCO_LINK:
5035 case ESCO_LINK:
5036 break;
5037 default:
5038 /* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type
5039 * for HCI_Synchronous_Connection_Complete is limited to
5040 * either SCO or eSCO
5041 */
5042 bt_dev_err(hdev, "Ignoring connect complete event for invalid link type");
5043 return;
5044 }
5045
5046 bt_dev_dbg(hdev, "status 0x%2.2x", status);
5047
5048 hci_dev_lock(hdev);
5049
5050 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
5051 if (!conn) {
5052 if (ev->link_type == ESCO_LINK)
5053 goto unlock;
5054
5055 /* When the link type in the event indicates SCO connection
5056 * and lookup of the connection object fails, then check
5057 * if an eSCO connection object exists.
5058 *
5059 * The core limits the synchronous connections to either
5060 * SCO or eSCO. The eSCO connection is preferred and tried
5061 * to be setup first and until successfully established,
5062 * the link type will be hinted as eSCO.
5063 */
5064 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
5065 if (!conn)
5066 goto unlock;
5067 }
5068
5069 /* The HCI_Synchronous_Connection_Complete event is only sent once per connection.
5070 * Processing it more than once per connection can corrupt kernel memory.
5071 *
5072 * As the connection handle is set here for the first time, it indicates
5073 * whether the connection is already set up.
5074 */
5075 if (!HCI_CONN_HANDLE_UNSET(conn->handle)) {
5076 bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection");
5077 goto unlock;
5078 }
5079
5080 switch (status) {
5081 case 0x00:
5082 status = hci_conn_set_handle(conn, __le16_to_cpu(ev->handle));
5083 if (status) {
5084 conn->state = BT_CLOSED;
5085 break;
5086 }
5087
5088 conn->state = BT_CONNECTED;
5089 conn->type = ev->link_type;
5090
5091 hci_debugfs_create_conn(conn);
5092 hci_conn_add_sysfs(conn);
5093 break;
5094
5095 case 0x10: /* Connection Accept Timeout */
5096 case 0x0d: /* Connection Rejected due to Limited Resources */
5097 case 0x11: /* Unsupported Feature or Parameter Value */
5098 case 0x1c: /* SCO interval rejected */
5099 case 0x1a: /* Unsupported Remote Feature */
5100 case 0x1e: /* Invalid LMP Parameters */
5101 case 0x1f: /* Unspecified error */
5102 case 0x20: /* Unsupported LMP Parameter value */
5103 if (conn->out) {
5104 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
5105 (hdev->esco_type & EDR_ESCO_MASK);
5106 if (hci_setup_sync(conn, conn->parent->handle))
5107 goto unlock;
5108 }
5109 fallthrough;
5110
5111 default:
5112 conn->state = BT_CLOSED;
5113 break;
5114 }
5115
5116 bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode);
5117 /* Notify only in case of SCO over HCI transport data path which
5118 * is zero and non-zero value shall be non-HCI transport data path
5119 */
5120 if (conn->codec.data_path == 0 && hdev->notify) {
5121 switch (ev->air_mode) {
5122 case 0x02:
5123 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
5124 break;
5125 case 0x03:
5126 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP);
5127 break;
5128 }
5129 }
5130
5131 hci_connect_cfm(conn, status);
5132 if (status)
5133 hci_conn_del(conn);
5134
5135unlock:
5136 hci_dev_unlock(hdev);
5137}
5138
5139static inline size_t eir_get_length(u8 *eir, size_t eir_len)
5140{
5141 size_t parsed = 0;
5142
5143 while (parsed < eir_len) {
5144 u8 field_len = eir[0];
5145
5146 if (field_len == 0)
5147 return parsed;
5148
5149 parsed += field_len + 1;
5150 eir += field_len + 1;
5151 }
5152
5153 return eir_len;
5154}
5155
5156static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, void *edata,
5157 struct sk_buff *skb)
5158{
5159 struct hci_ev_ext_inquiry_result *ev = edata;
5160 struct inquiry_data data;
5161 size_t eir_len;
5162 int i;
5163
5164 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_EXTENDED_INQUIRY_RESULT,
5165 flex_array_size(ev, info, ev->num)))
5166 return;
5167
5168 bt_dev_dbg(hdev, "num %d", ev->num);
5169
5170 if (!ev->num)
5171 return;
5172
5173 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
5174 return;
5175
5176 hci_dev_lock(hdev);
5177
5178 for (i = 0; i < ev->num; i++) {
5179 struct extended_inquiry_info *info = &ev->info[i];
5180 u32 flags;
5181 bool name_known;
5182
5183 bacpy(&data.bdaddr, &info->bdaddr);
5184 data.pscan_rep_mode = info->pscan_rep_mode;
5185 data.pscan_period_mode = info->pscan_period_mode;
5186 data.pscan_mode = 0x00;
5187 memcpy(data.dev_class, info->dev_class, 3);
5188 data.clock_offset = info->clock_offset;
5189 data.rssi = info->rssi;
5190 data.ssp_mode = 0x01;
5191
5192 if (hci_dev_test_flag(hdev, HCI_MGMT))
5193 name_known = eir_get_data(info->data,
5194 sizeof(info->data),
5195 EIR_NAME_COMPLETE, NULL);
5196 else
5197 name_known = true;
5198
5199 flags = hci_inquiry_cache_update(hdev, &data, name_known);
5200
5201 eir_len = eir_get_length(info->data, sizeof(info->data));
5202
5203 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
5204 info->dev_class, info->rssi,
5205 flags, info->data, eir_len, NULL, 0, 0);
5206 }
5207
5208 hci_dev_unlock(hdev);
5209}
5210
5211static void hci_key_refresh_complete_evt(struct hci_dev *hdev, void *data,
5212 struct sk_buff *skb)
5213{
5214 struct hci_ev_key_refresh_complete *ev = data;
5215 struct hci_conn *conn;
5216
5217 bt_dev_dbg(hdev, "status 0x%2.2x handle 0x%4.4x", ev->status,
5218 __le16_to_cpu(ev->handle));
5219
5220 hci_dev_lock(hdev);
5221
5222 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5223 if (!conn)
5224 goto unlock;
5225
5226 /* For BR/EDR the necessary steps are taken through the
5227 * auth_complete event.
5228 */
5229 if (conn->type != LE_LINK)
5230 goto unlock;
5231
5232 if (!ev->status)
5233 conn->sec_level = conn->pending_sec_level;
5234
5235 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
5236
5237 if (ev->status && conn->state == BT_CONNECTED) {
5238 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
5239 hci_conn_drop(conn);
5240 goto unlock;
5241 }
5242
5243 if (conn->state == BT_CONFIG) {
5244 if (!ev->status)
5245 conn->state = BT_CONNECTED;
5246
5247 hci_connect_cfm(conn, ev->status);
5248 hci_conn_drop(conn);
5249 } else {
5250 hci_auth_cfm(conn, ev->status);
5251
5252 hci_conn_hold(conn);
5253 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
5254 hci_conn_drop(conn);
5255 }
5256
5257unlock:
5258 hci_dev_unlock(hdev);
5259}
5260
5261static u8 hci_get_auth_req(struct hci_conn *conn)
5262{
5263 /* If remote requests no-bonding follow that lead */
5264 if (conn->remote_auth == HCI_AT_NO_BONDING ||
5265 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
5266 return conn->remote_auth | (conn->auth_type & 0x01);
5267
5268 /* If both remote and local have enough IO capabilities, require
5269 * MITM protection
5270 */
5271 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
5272 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
5273 return conn->remote_auth | 0x01;
5274
5275 /* No MITM protection possible so ignore remote requirement */
5276 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
5277}
5278
5279static u8 bredr_oob_data_present(struct hci_conn *conn)
5280{
5281 struct hci_dev *hdev = conn->hdev;
5282 struct oob_data *data;
5283
5284 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
5285 if (!data)
5286 return 0x00;
5287
5288 if (bredr_sc_enabled(hdev)) {
5289 /* When Secure Connections is enabled, then just
5290 * return the present value stored with the OOB
5291 * data. The stored value contains the right present
5292 * information. However it can only be trusted when
5293 * not in Secure Connection Only mode.
5294 */
5295 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
5296 return data->present;
5297
5298 /* When Secure Connections Only mode is enabled, then
5299 * the P-256 values are required. If they are not
5300 * available, then do not declare that OOB data is
5301 * present.
5302 */
5303 if (!crypto_memneq(data->rand256, ZERO_KEY, 16) ||
5304 !crypto_memneq(data->hash256, ZERO_KEY, 16))
5305 return 0x00;
5306
5307 return 0x02;
5308 }
5309
5310 /* When Secure Connections is not enabled or actually
5311 * not supported by the hardware, then check that if
5312 * P-192 data values are present.
5313 */
5314 if (!crypto_memneq(data->rand192, ZERO_KEY, 16) ||
5315 !crypto_memneq(data->hash192, ZERO_KEY, 16))
5316 return 0x00;
5317
5318 return 0x01;
5319}
5320
5321static void hci_io_capa_request_evt(struct hci_dev *hdev, void *data,
5322 struct sk_buff *skb)
5323{
5324 struct hci_ev_io_capa_request *ev = data;
5325 struct hci_conn *conn;
5326
5327 bt_dev_dbg(hdev, "");
5328
5329 hci_dev_lock(hdev);
5330
5331 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5332 if (!conn || !hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
5333 goto unlock;
5334
5335 /* Assume remote supports SSP since it has triggered this event */
5336 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
5337
5338 hci_conn_hold(conn);
5339
5340 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5341 goto unlock;
5342
5343 /* Allow pairing if we're pairable, the initiators of the
5344 * pairing or if the remote is not requesting bonding.
5345 */
5346 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
5347 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
5348 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
5349 struct hci_cp_io_capability_reply cp;
5350
5351 bacpy(&cp.bdaddr, &ev->bdaddr);
5352 /* Change the IO capability from KeyboardDisplay
5353 * to DisplayYesNo as it is not supported by BT spec. */
5354 cp.capability = (conn->io_capability == 0x04) ?
5355 HCI_IO_DISPLAY_YESNO : conn->io_capability;
5356
5357 /* If we are initiators, there is no remote information yet */
5358 if (conn->remote_auth == 0xff) {
5359 /* Request MITM protection if our IO caps allow it
5360 * except for the no-bonding case.
5361 */
5362 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5363 conn->auth_type != HCI_AT_NO_BONDING)
5364 conn->auth_type |= 0x01;
5365 } else {
5366 conn->auth_type = hci_get_auth_req(conn);
5367 }
5368
5369 /* If we're not bondable, force one of the non-bondable
5370 * authentication requirement values.
5371 */
5372 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
5373 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
5374
5375 cp.authentication = conn->auth_type;
5376 cp.oob_data = bredr_oob_data_present(conn);
5377
5378 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
5379 sizeof(cp), &cp);
5380 } else {
5381 struct hci_cp_io_capability_neg_reply cp;
5382
5383 bacpy(&cp.bdaddr, &ev->bdaddr);
5384 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
5385
5386 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
5387 sizeof(cp), &cp);
5388 }
5389
5390unlock:
5391 hci_dev_unlock(hdev);
5392}
5393
5394static void hci_io_capa_reply_evt(struct hci_dev *hdev, void *data,
5395 struct sk_buff *skb)
5396{
5397 struct hci_ev_io_capa_reply *ev = data;
5398 struct hci_conn *conn;
5399
5400 bt_dev_dbg(hdev, "");
5401
5402 hci_dev_lock(hdev);
5403
5404 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5405 if (!conn)
5406 goto unlock;
5407
5408 conn->remote_cap = ev->capability;
5409 conn->remote_auth = ev->authentication;
5410
5411unlock:
5412 hci_dev_unlock(hdev);
5413}
5414
5415static void hci_user_confirm_request_evt(struct hci_dev *hdev, void *data,
5416 struct sk_buff *skb)
5417{
5418 struct hci_ev_user_confirm_req *ev = data;
5419 int loc_mitm, rem_mitm, confirm_hint = 0;
5420 struct hci_conn *conn;
5421
5422 bt_dev_dbg(hdev, "");
5423
5424 hci_dev_lock(hdev);
5425
5426 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5427 goto unlock;
5428
5429 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5430 if (!conn)
5431 goto unlock;
5432
5433 loc_mitm = (conn->auth_type & 0x01);
5434 rem_mitm = (conn->remote_auth & 0x01);
5435
5436 /* If we require MITM but the remote device can't provide that
5437 * (it has NoInputNoOutput) then reject the confirmation
5438 * request. We check the security level here since it doesn't
5439 * necessarily match conn->auth_type.
5440 */
5441 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
5442 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
5443 bt_dev_dbg(hdev, "Rejecting request: remote device can't provide MITM");
5444 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
5445 sizeof(ev->bdaddr), &ev->bdaddr);
5446 goto unlock;
5447 }
5448
5449 /* If no side requires MITM protection; auto-accept */
5450 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
5451 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
5452
5453 /* If we're not the initiators request authorization to
5454 * proceed from user space (mgmt_user_confirm with
5455 * confirm_hint set to 1). The exception is if neither
5456 * side had MITM or if the local IO capability is
5457 * NoInputNoOutput, in which case we do auto-accept
5458 */
5459 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
5460 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
5461 (loc_mitm || rem_mitm)) {
5462 bt_dev_dbg(hdev, "Confirming auto-accept as acceptor");
5463 confirm_hint = 1;
5464 goto confirm;
5465 }
5466
5467 /* If there already exists link key in local host, leave the
5468 * decision to user space since the remote device could be
5469 * legitimate or malicious.
5470 */
5471 if (hci_find_link_key(hdev, &ev->bdaddr)) {
5472 bt_dev_dbg(hdev, "Local host already has link key");
5473 confirm_hint = 1;
5474 goto confirm;
5475 }
5476
5477 BT_DBG("Auto-accept of user confirmation with %ums delay",
5478 hdev->auto_accept_delay);
5479
5480 if (hdev->auto_accept_delay > 0) {
5481 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
5482 queue_delayed_work(conn->hdev->workqueue,
5483 &conn->auto_accept_work, delay);
5484 goto unlock;
5485 }
5486
5487 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
5488 sizeof(ev->bdaddr), &ev->bdaddr);
5489 goto unlock;
5490 }
5491
5492confirm:
5493 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
5494 le32_to_cpu(ev->passkey), confirm_hint);
5495
5496unlock:
5497 hci_dev_unlock(hdev);
5498}
5499
5500static void hci_user_passkey_request_evt(struct hci_dev *hdev, void *data,
5501 struct sk_buff *skb)
5502{
5503 struct hci_ev_user_passkey_req *ev = data;
5504
5505 bt_dev_dbg(hdev, "");
5506
5507 if (hci_dev_test_flag(hdev, HCI_MGMT))
5508 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
5509}
5510
5511static void hci_user_passkey_notify_evt(struct hci_dev *hdev, void *data,
5512 struct sk_buff *skb)
5513{
5514 struct hci_ev_user_passkey_notify *ev = data;
5515 struct hci_conn *conn;
5516
5517 bt_dev_dbg(hdev, "");
5518
5519 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5520 if (!conn)
5521 return;
5522
5523 conn->passkey_notify = __le32_to_cpu(ev->passkey);
5524 conn->passkey_entered = 0;
5525
5526 if (hci_dev_test_flag(hdev, HCI_MGMT))
5527 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5528 conn->dst_type, conn->passkey_notify,
5529 conn->passkey_entered);
5530}
5531
5532static void hci_keypress_notify_evt(struct hci_dev *hdev, void *data,
5533 struct sk_buff *skb)
5534{
5535 struct hci_ev_keypress_notify *ev = data;
5536 struct hci_conn *conn;
5537
5538 bt_dev_dbg(hdev, "");
5539
5540 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5541 if (!conn)
5542 return;
5543
5544 switch (ev->type) {
5545 case HCI_KEYPRESS_STARTED:
5546 conn->passkey_entered = 0;
5547 return;
5548
5549 case HCI_KEYPRESS_ENTERED:
5550 conn->passkey_entered++;
5551 break;
5552
5553 case HCI_KEYPRESS_ERASED:
5554 conn->passkey_entered--;
5555 break;
5556
5557 case HCI_KEYPRESS_CLEARED:
5558 conn->passkey_entered = 0;
5559 break;
5560
5561 case HCI_KEYPRESS_COMPLETED:
5562 return;
5563 }
5564
5565 if (hci_dev_test_flag(hdev, HCI_MGMT))
5566 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5567 conn->dst_type, conn->passkey_notify,
5568 conn->passkey_entered);
5569}
5570
5571static void hci_simple_pair_complete_evt(struct hci_dev *hdev, void *data,
5572 struct sk_buff *skb)
5573{
5574 struct hci_ev_simple_pair_complete *ev = data;
5575 struct hci_conn *conn;
5576
5577 bt_dev_dbg(hdev, "");
5578
5579 hci_dev_lock(hdev);
5580
5581 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5582 if (!conn || !hci_conn_ssp_enabled(conn))
5583 goto unlock;
5584
5585 /* Reset the authentication requirement to unknown */
5586 conn->remote_auth = 0xff;
5587
5588 /* To avoid duplicate auth_failed events to user space we check
5589 * the HCI_CONN_AUTH_PEND flag which will be set if we
5590 * initiated the authentication. A traditional auth_complete
5591 * event gets always produced as initiator and is also mapped to
5592 * the mgmt_auth_failed event */
5593 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
5594 mgmt_auth_failed(conn, ev->status);
5595
5596 hci_conn_drop(conn);
5597
5598unlock:
5599 hci_dev_unlock(hdev);
5600}
5601
5602static void hci_remote_host_features_evt(struct hci_dev *hdev, void *data,
5603 struct sk_buff *skb)
5604{
5605 struct hci_ev_remote_host_features *ev = data;
5606 struct inquiry_entry *ie;
5607 struct hci_conn *conn;
5608
5609 bt_dev_dbg(hdev, "");
5610
5611 hci_dev_lock(hdev);
5612
5613 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5614 if (conn)
5615 memcpy(conn->features[1], ev->features, 8);
5616
5617 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
5618 if (ie)
5619 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
5620
5621 hci_dev_unlock(hdev);
5622}
5623
5624static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, void *edata,
5625 struct sk_buff *skb)
5626{
5627 struct hci_ev_remote_oob_data_request *ev = edata;
5628 struct oob_data *data;
5629
5630 bt_dev_dbg(hdev, "");
5631
5632 hci_dev_lock(hdev);
5633
5634 if (!hci_dev_test_flag(hdev, HCI_MGMT))
5635 goto unlock;
5636
5637 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
5638 if (!data) {
5639 struct hci_cp_remote_oob_data_neg_reply cp;
5640
5641 bacpy(&cp.bdaddr, &ev->bdaddr);
5642 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
5643 sizeof(cp), &cp);
5644 goto unlock;
5645 }
5646
5647 if (bredr_sc_enabled(hdev)) {
5648 struct hci_cp_remote_oob_ext_data_reply cp;
5649
5650 bacpy(&cp.bdaddr, &ev->bdaddr);
5651 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5652 memset(cp.hash192, 0, sizeof(cp.hash192));
5653 memset(cp.rand192, 0, sizeof(cp.rand192));
5654 } else {
5655 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
5656 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
5657 }
5658 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
5659 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
5660
5661 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
5662 sizeof(cp), &cp);
5663 } else {
5664 struct hci_cp_remote_oob_data_reply cp;
5665
5666 bacpy(&cp.bdaddr, &ev->bdaddr);
5667 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
5668 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
5669
5670 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
5671 sizeof(cp), &cp);
5672 }
5673
5674unlock:
5675 hci_dev_unlock(hdev);
5676}
5677
5678#if IS_ENABLED(CONFIG_BT_HS)
5679static void hci_chan_selected_evt(struct hci_dev *hdev, void *data,
5680 struct sk_buff *skb)
5681{
5682 struct hci_ev_channel_selected *ev = data;
5683 struct hci_conn *hcon;
5684
5685 bt_dev_dbg(hdev, "handle 0x%2.2x", ev->phy_handle);
5686
5687 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5688 if (!hcon)
5689 return;
5690
5691 amp_read_loc_assoc_final_data(hdev, hcon);
5692}
5693
5694static void hci_phy_link_complete_evt(struct hci_dev *hdev, void *data,
5695 struct sk_buff *skb)
5696{
5697 struct hci_ev_phy_link_complete *ev = data;
5698 struct hci_conn *hcon, *bredr_hcon;
5699
5700 bt_dev_dbg(hdev, "handle 0x%2.2x status 0x%2.2x", ev->phy_handle,
5701 ev->status);
5702
5703 hci_dev_lock(hdev);
5704
5705 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5706 if (!hcon)
5707 goto unlock;
5708
5709 if (!hcon->amp_mgr)
5710 goto unlock;
5711
5712 if (ev->status) {
5713 hci_conn_del(hcon);
5714 goto unlock;
5715 }
5716
5717 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
5718
5719 hcon->state = BT_CONNECTED;
5720 bacpy(&hcon->dst, &bredr_hcon->dst);
5721
5722 hci_conn_hold(hcon);
5723 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
5724 hci_conn_drop(hcon);
5725
5726 hci_debugfs_create_conn(hcon);
5727 hci_conn_add_sysfs(hcon);
5728
5729 amp_physical_cfm(bredr_hcon, hcon);
5730
5731unlock:
5732 hci_dev_unlock(hdev);
5733}
5734
5735static void hci_loglink_complete_evt(struct hci_dev *hdev, void *data,
5736 struct sk_buff *skb)
5737{
5738 struct hci_ev_logical_link_complete *ev = data;
5739 struct hci_conn *hcon;
5740 struct hci_chan *hchan;
5741 struct amp_mgr *mgr;
5742
5743 bt_dev_dbg(hdev, "log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
5744 le16_to_cpu(ev->handle), ev->phy_handle, ev->status);
5745
5746 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5747 if (!hcon)
5748 return;
5749
5750 /* Create AMP hchan */
5751 hchan = hci_chan_create(hcon);
5752 if (!hchan)
5753 return;
5754
5755 hchan->handle = le16_to_cpu(ev->handle);
5756 hchan->amp = true;
5757
5758 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
5759
5760 mgr = hcon->amp_mgr;
5761 if (mgr && mgr->bredr_chan) {
5762 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
5763
5764 l2cap_chan_lock(bredr_chan);
5765
5766 bredr_chan->conn->mtu = hdev->block_mtu;
5767 l2cap_logical_cfm(bredr_chan, hchan, 0);
5768 hci_conn_hold(hcon);
5769
5770 l2cap_chan_unlock(bredr_chan);
5771 }
5772}
5773
5774static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, void *data,
5775 struct sk_buff *skb)
5776{
5777 struct hci_ev_disconn_logical_link_complete *ev = data;
5778 struct hci_chan *hchan;
5779
5780 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x",
5781 le16_to_cpu(ev->handle), ev->status);
5782
5783 if (ev->status)
5784 return;
5785
5786 hci_dev_lock(hdev);
5787
5788 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
5789 if (!hchan || !hchan->amp)
5790 goto unlock;
5791
5792 amp_destroy_logical_link(hchan, ev->reason);
5793
5794unlock:
5795 hci_dev_unlock(hdev);
5796}
5797
5798static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data,
5799 struct sk_buff *skb)
5800{
5801 struct hci_ev_disconn_phy_link_complete *ev = data;
5802 struct hci_conn *hcon;
5803
5804 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
5805
5806 if (ev->status)
5807 return;
5808
5809 hci_dev_lock(hdev);
5810
5811 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5812 if (hcon && hcon->type == AMP_LINK) {
5813 hcon->state = BT_CLOSED;
5814 hci_disconn_cfm(hcon, ev->reason);
5815 hci_conn_del(hcon);
5816 }
5817
5818 hci_dev_unlock(hdev);
5819}
5820#endif
5821
5822static void le_conn_update_addr(struct hci_conn *conn, bdaddr_t *bdaddr,
5823 u8 bdaddr_type, bdaddr_t *local_rpa)
5824{
5825 if (conn->out) {
5826 conn->dst_type = bdaddr_type;
5827 conn->resp_addr_type = bdaddr_type;
5828 bacpy(&conn->resp_addr, bdaddr);
5829
5830 /* Check if the controller has set a Local RPA then it must be
5831 * used instead or hdev->rpa.
5832 */
5833 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5834 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5835 bacpy(&conn->init_addr, local_rpa);
5836 } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) {
5837 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5838 bacpy(&conn->init_addr, &conn->hdev->rpa);
5839 } else {
5840 hci_copy_identity_address(conn->hdev, &conn->init_addr,
5841 &conn->init_addr_type);
5842 }
5843 } else {
5844 conn->resp_addr_type = conn->hdev->adv_addr_type;
5845 /* Check if the controller has set a Local RPA then it must be
5846 * used instead or hdev->rpa.
5847 */
5848 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5849 conn->resp_addr_type = ADDR_LE_DEV_RANDOM;
5850 bacpy(&conn->resp_addr, local_rpa);
5851 } else if (conn->hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
5852 /* In case of ext adv, resp_addr will be updated in
5853 * Adv Terminated event.
5854 */
5855 if (!ext_adv_capable(conn->hdev))
5856 bacpy(&conn->resp_addr,
5857 &conn->hdev->random_addr);
5858 } else {
5859 bacpy(&conn->resp_addr, &conn->hdev->bdaddr);
5860 }
5861
5862 conn->init_addr_type = bdaddr_type;
5863 bacpy(&conn->init_addr, bdaddr);
5864
5865 /* For incoming connections, set the default minimum
5866 * and maximum connection interval. They will be used
5867 * to check if the parameters are in range and if not
5868 * trigger the connection update procedure.
5869 */
5870 conn->le_conn_min_interval = conn->hdev->le_conn_min_interval;
5871 conn->le_conn_max_interval = conn->hdev->le_conn_max_interval;
5872 }
5873}
5874
5875static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
5876 bdaddr_t *bdaddr, u8 bdaddr_type,
5877 bdaddr_t *local_rpa, u8 role, u16 handle,
5878 u16 interval, u16 latency,
5879 u16 supervision_timeout)
5880{
5881 struct hci_conn_params *params;
5882 struct hci_conn *conn;
5883 struct smp_irk *irk;
5884 u8 addr_type;
5885
5886 hci_dev_lock(hdev);
5887
5888 /* All controllers implicitly stop advertising in the event of a
5889 * connection, so ensure that the state bit is cleared.
5890 */
5891 hci_dev_clear_flag(hdev, HCI_LE_ADV);
5892
5893 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
5894 if (!conn) {
5895 /* In case of error status and there is no connection pending
5896 * just unlock as there is nothing to cleanup.
5897 */
5898 if (status)
5899 goto unlock;
5900
5901 conn = hci_conn_add_unset(hdev, LE_LINK, bdaddr, role);
5902 if (!conn) {
5903 bt_dev_err(hdev, "no memory for new connection");
5904 goto unlock;
5905 }
5906
5907 conn->dst_type = bdaddr_type;
5908
5909 /* If we didn't have a hci_conn object previously
5910 * but we're in central role this must be something
5911 * initiated using an accept list. Since accept list based
5912 * connections are not "first class citizens" we don't
5913 * have full tracking of them. Therefore, we go ahead
5914 * with a "best effort" approach of determining the
5915 * initiator address based on the HCI_PRIVACY flag.
5916 */
5917 if (conn->out) {
5918 conn->resp_addr_type = bdaddr_type;
5919 bacpy(&conn->resp_addr, bdaddr);
5920 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
5921 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5922 bacpy(&conn->init_addr, &hdev->rpa);
5923 } else {
5924 hci_copy_identity_address(hdev,
5925 &conn->init_addr,
5926 &conn->init_addr_type);
5927 }
5928 }
5929 } else {
5930 cancel_delayed_work(&conn->le_conn_timeout);
5931 }
5932
5933 /* The HCI_LE_Connection_Complete event is only sent once per connection.
5934 * Processing it more than once per connection can corrupt kernel memory.
5935 *
5936 * As the connection handle is set here for the first time, it indicates
5937 * whether the connection is already set up.
5938 */
5939 if (!HCI_CONN_HANDLE_UNSET(conn->handle)) {
5940 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
5941 goto unlock;
5942 }
5943
5944 le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa);
5945
5946 /* Lookup the identity address from the stored connection
5947 * address and address type.
5948 *
5949 * When establishing connections to an identity address, the
5950 * connection procedure will store the resolvable random
5951 * address first. Now if it can be converted back into the
5952 * identity address, start using the identity address from
5953 * now on.
5954 */
5955 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
5956 if (irk) {
5957 bacpy(&conn->dst, &irk->bdaddr);
5958 conn->dst_type = irk->addr_type;
5959 }
5960
5961 conn->dst_type = ev_bdaddr_type(hdev, conn->dst_type, NULL);
5962
5963 /* All connection failure handling is taken care of by the
5964 * hci_conn_failed function which is triggered by the HCI
5965 * request completion callbacks used for connecting.
5966 */
5967 if (status || hci_conn_set_handle(conn, handle))
5968 goto unlock;
5969
5970 /* Drop the connection if it has been aborted */
5971 if (test_bit(HCI_CONN_CANCEL, &conn->flags)) {
5972 hci_conn_drop(conn);
5973 goto unlock;
5974 }
5975
5976 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
5977 addr_type = BDADDR_LE_PUBLIC;
5978 else
5979 addr_type = BDADDR_LE_RANDOM;
5980
5981 /* Drop the connection if the device is blocked */
5982 if (hci_bdaddr_list_lookup(&hdev->reject_list, &conn->dst, addr_type)) {
5983 hci_conn_drop(conn);
5984 goto unlock;
5985 }
5986
5987 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5988 mgmt_device_connected(hdev, conn, NULL, 0);
5989
5990 conn->sec_level = BT_SECURITY_LOW;
5991 conn->state = BT_CONFIG;
5992
5993 /* Store current advertising instance as connection advertising instance
5994 * when sotfware rotation is in use so it can be re-enabled when
5995 * disconnected.
5996 */
5997 if (!ext_adv_capable(hdev))
5998 conn->adv_instance = hdev->cur_adv_instance;
5999
6000 conn->le_conn_interval = interval;
6001 conn->le_conn_latency = latency;
6002 conn->le_supv_timeout = supervision_timeout;
6003
6004 hci_debugfs_create_conn(conn);
6005 hci_conn_add_sysfs(conn);
6006
6007 /* The remote features procedure is defined for central
6008 * role only. So only in case of an initiated connection
6009 * request the remote features.
6010 *
6011 * If the local controller supports peripheral-initiated features
6012 * exchange, then requesting the remote features in peripheral
6013 * role is possible. Otherwise just transition into the
6014 * connected state without requesting the remote features.
6015 */
6016 if (conn->out ||
6017 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) {
6018 struct hci_cp_le_read_remote_features cp;
6019
6020 cp.handle = __cpu_to_le16(conn->handle);
6021
6022 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
6023 sizeof(cp), &cp);
6024
6025 hci_conn_hold(conn);
6026 } else {
6027 conn->state = BT_CONNECTED;
6028 hci_connect_cfm(conn, status);
6029 }
6030
6031 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
6032 conn->dst_type);
6033 if (params) {
6034 hci_pend_le_list_del_init(params);
6035 if (params->conn) {
6036 hci_conn_drop(params->conn);
6037 hci_conn_put(params->conn);
6038 params->conn = NULL;
6039 }
6040 }
6041
6042unlock:
6043 hci_update_passive_scan(hdev);
6044 hci_dev_unlock(hdev);
6045}
6046
6047static void hci_le_conn_complete_evt(struct hci_dev *hdev, void *data,
6048 struct sk_buff *skb)
6049{
6050 struct hci_ev_le_conn_complete *ev = data;
6051
6052 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6053
6054 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6055 NULL, ev->role, le16_to_cpu(ev->handle),
6056 le16_to_cpu(ev->interval),
6057 le16_to_cpu(ev->latency),
6058 le16_to_cpu(ev->supervision_timeout));
6059}
6060
6061static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, void *data,
6062 struct sk_buff *skb)
6063{
6064 struct hci_ev_le_enh_conn_complete *ev = data;
6065
6066 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6067
6068 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
6069 &ev->local_rpa, ev->role, le16_to_cpu(ev->handle),
6070 le16_to_cpu(ev->interval),
6071 le16_to_cpu(ev->latency),
6072 le16_to_cpu(ev->supervision_timeout));
6073}
6074
6075static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data,
6076 struct sk_buff *skb)
6077{
6078 struct hci_evt_le_ext_adv_set_term *ev = data;
6079 struct hci_conn *conn;
6080 struct adv_info *adv, *n;
6081
6082 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6083
6084 /* The Bluetooth Core 5.3 specification clearly states that this event
6085 * shall not be sent when the Host disables the advertising set. So in
6086 * case of HCI_ERROR_CANCELLED_BY_HOST, just ignore the event.
6087 *
6088 * When the Host disables an advertising set, all cleanup is done via
6089 * its command callback and not needed to be duplicated here.
6090 */
6091 if (ev->status == HCI_ERROR_CANCELLED_BY_HOST) {
6092 bt_dev_warn_ratelimited(hdev, "Unexpected advertising set terminated event");
6093 return;
6094 }
6095
6096 hci_dev_lock(hdev);
6097
6098 adv = hci_find_adv_instance(hdev, ev->handle);
6099
6100 if (ev->status) {
6101 if (!adv)
6102 goto unlock;
6103
6104 /* Remove advertising as it has been terminated */
6105 hci_remove_adv_instance(hdev, ev->handle);
6106 mgmt_advertising_removed(NULL, hdev, ev->handle);
6107
6108 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
6109 if (adv->enabled)
6110 goto unlock;
6111 }
6112
6113 /* We are no longer advertising, clear HCI_LE_ADV */
6114 hci_dev_clear_flag(hdev, HCI_LE_ADV);
6115 goto unlock;
6116 }
6117
6118 if (adv)
6119 adv->enabled = false;
6120
6121 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
6122 if (conn) {
6123 /* Store handle in the connection so the correct advertising
6124 * instance can be re-enabled when disconnected.
6125 */
6126 conn->adv_instance = ev->handle;
6127
6128 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM ||
6129 bacmp(&conn->resp_addr, BDADDR_ANY))
6130 goto unlock;
6131
6132 if (!ev->handle) {
6133 bacpy(&conn->resp_addr, &hdev->random_addr);
6134 goto unlock;
6135 }
6136
6137 if (adv)
6138 bacpy(&conn->resp_addr, &adv->random_addr);
6139 }
6140
6141unlock:
6142 hci_dev_unlock(hdev);
6143}
6144
6145static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data,
6146 struct sk_buff *skb)
6147{
6148 struct hci_ev_le_conn_update_complete *ev = data;
6149 struct hci_conn *conn;
6150
6151 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6152
6153 if (ev->status)
6154 return;
6155
6156 hci_dev_lock(hdev);
6157
6158 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6159 if (conn) {
6160 conn->le_conn_interval = le16_to_cpu(ev->interval);
6161 conn->le_conn_latency = le16_to_cpu(ev->latency);
6162 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
6163 }
6164
6165 hci_dev_unlock(hdev);
6166}
6167
6168/* This function requires the caller holds hdev->lock */
6169static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
6170 bdaddr_t *addr,
6171 u8 addr_type, bool addr_resolved,
6172 u8 adv_type)
6173{
6174 struct hci_conn *conn;
6175 struct hci_conn_params *params;
6176
6177 /* If the event is not connectable don't proceed further */
6178 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
6179 return NULL;
6180
6181 /* Ignore if the device is blocked or hdev is suspended */
6182 if (hci_bdaddr_list_lookup(&hdev->reject_list, addr, addr_type) ||
6183 hdev->suspended)
6184 return NULL;
6185
6186 /* Most controller will fail if we try to create new connections
6187 * while we have an existing one in peripheral role.
6188 */
6189 if (hdev->conn_hash.le_num_peripheral > 0 &&
6190 (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) ||
6191 !(hdev->le_states[3] & 0x10)))
6192 return NULL;
6193
6194 /* If we're not connectable only connect devices that we have in
6195 * our pend_le_conns list.
6196 */
6197 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
6198 addr_type);
6199 if (!params)
6200 return NULL;
6201
6202 if (!params->explicit_connect) {
6203 switch (params->auto_connect) {
6204 case HCI_AUTO_CONN_DIRECT:
6205 /* Only devices advertising with ADV_DIRECT_IND are
6206 * triggering a connection attempt. This is allowing
6207 * incoming connections from peripheral devices.
6208 */
6209 if (adv_type != LE_ADV_DIRECT_IND)
6210 return NULL;
6211 break;
6212 case HCI_AUTO_CONN_ALWAYS:
6213 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
6214 * are triggering a connection attempt. This means
6215 * that incoming connections from peripheral device are
6216 * accepted and also outgoing connections to peripheral
6217 * devices are established when found.
6218 */
6219 break;
6220 default:
6221 return NULL;
6222 }
6223 }
6224
6225 conn = hci_connect_le(hdev, addr, addr_type, addr_resolved,
6226 BT_SECURITY_LOW, hdev->def_le_autoconnect_timeout,
6227 HCI_ROLE_MASTER);
6228 if (!IS_ERR(conn)) {
6229 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
6230 * by higher layer that tried to connect, if no then
6231 * store the pointer since we don't really have any
6232 * other owner of the object besides the params that
6233 * triggered it. This way we can abort the connection if
6234 * the parameters get removed and keep the reference
6235 * count consistent once the connection is established.
6236 */
6237
6238 if (!params->explicit_connect)
6239 params->conn = hci_conn_get(conn);
6240
6241 return conn;
6242 }
6243
6244 switch (PTR_ERR(conn)) {
6245 case -EBUSY:
6246 /* If hci_connect() returns -EBUSY it means there is already
6247 * an LE connection attempt going on. Since controllers don't
6248 * support more than one connection attempt at the time, we
6249 * don't consider this an error case.
6250 */
6251 break;
6252 default:
6253 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
6254 return NULL;
6255 }
6256
6257 return NULL;
6258}
6259
6260static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
6261 u8 bdaddr_type, bdaddr_t *direct_addr,
6262 u8 direct_addr_type, s8 rssi, u8 *data, u8 len,
6263 bool ext_adv, bool ctl_time, u64 instant)
6264{
6265 struct discovery_state *d = &hdev->discovery;
6266 struct smp_irk *irk;
6267 struct hci_conn *conn;
6268 bool match, bdaddr_resolved;
6269 u32 flags;
6270 u8 *ptr;
6271
6272 switch (type) {
6273 case LE_ADV_IND:
6274 case LE_ADV_DIRECT_IND:
6275 case LE_ADV_SCAN_IND:
6276 case LE_ADV_NONCONN_IND:
6277 case LE_ADV_SCAN_RSP:
6278 break;
6279 default:
6280 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
6281 "type: 0x%02x", type);
6282 return;
6283 }
6284
6285 if (len > max_adv_len(hdev)) {
6286 bt_dev_err_ratelimited(hdev,
6287 "adv larger than maximum supported");
6288 return;
6289 }
6290
6291 /* Find the end of the data in case the report contains padded zero
6292 * bytes at the end causing an invalid length value.
6293 *
6294 * When data is NULL, len is 0 so there is no need for extra ptr
6295 * check as 'ptr < data + 0' is already false in such case.
6296 */
6297 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
6298 if (ptr + 1 + *ptr > data + len)
6299 break;
6300 }
6301
6302 /* Adjust for actual length. This handles the case when remote
6303 * device is advertising with incorrect data length.
6304 */
6305 len = ptr - data;
6306
6307 /* If the direct address is present, then this report is from
6308 * a LE Direct Advertising Report event. In that case it is
6309 * important to see if the address is matching the local
6310 * controller address.
6311 */
6312 if (!hci_dev_test_flag(hdev, HCI_MESH) && direct_addr) {
6313 direct_addr_type = ev_bdaddr_type(hdev, direct_addr_type,
6314 &bdaddr_resolved);
6315
6316 /* Only resolvable random addresses are valid for these
6317 * kind of reports and others can be ignored.
6318 */
6319 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
6320 return;
6321
6322 /* If the controller is not using resolvable random
6323 * addresses, then this report can be ignored.
6324 */
6325 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
6326 return;
6327
6328 /* If the local IRK of the controller does not match
6329 * with the resolvable random address provided, then
6330 * this report can be ignored.
6331 */
6332 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
6333 return;
6334 }
6335
6336 /* Check if we need to convert to identity address */
6337 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
6338 if (irk) {
6339 bdaddr = &irk->bdaddr;
6340 bdaddr_type = irk->addr_type;
6341 }
6342
6343 bdaddr_type = ev_bdaddr_type(hdev, bdaddr_type, &bdaddr_resolved);
6344
6345 /* Check if we have been requested to connect to this device.
6346 *
6347 * direct_addr is set only for directed advertising reports (it is NULL
6348 * for advertising reports) and is already verified to be RPA above.
6349 */
6350 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, bdaddr_resolved,
6351 type);
6352 if (!ext_adv && conn && type == LE_ADV_IND &&
6353 len <= max_adv_len(hdev)) {
6354 /* Store report for later inclusion by
6355 * mgmt_device_connected
6356 */
6357 memcpy(conn->le_adv_data, data, len);
6358 conn->le_adv_data_len = len;
6359 }
6360
6361 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
6362 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6363 else
6364 flags = 0;
6365
6366 /* All scan results should be sent up for Mesh systems */
6367 if (hci_dev_test_flag(hdev, HCI_MESH)) {
6368 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6369 rssi, flags, data, len, NULL, 0, instant);
6370 return;
6371 }
6372
6373 /* Passive scanning shouldn't trigger any device found events,
6374 * except for devices marked as CONN_REPORT for which we do send
6375 * device found events, or advertisement monitoring requested.
6376 */
6377 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
6378 if (type == LE_ADV_DIRECT_IND)
6379 return;
6380
6381 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
6382 bdaddr, bdaddr_type) &&
6383 idr_is_empty(&hdev->adv_monitors_idr))
6384 return;
6385
6386 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6387 rssi, flags, data, len, NULL, 0, 0);
6388 return;
6389 }
6390
6391 /* When receiving a scan response, then there is no way to
6392 * know if the remote device is connectable or not. However
6393 * since scan responses are merged with a previously seen
6394 * advertising report, the flags field from that report
6395 * will be used.
6396 *
6397 * In the unlikely case that a controller just sends a scan
6398 * response event that doesn't match the pending report, then
6399 * it is marked as a standalone SCAN_RSP.
6400 */
6401 if (type == LE_ADV_SCAN_RSP)
6402 flags = MGMT_DEV_FOUND_SCAN_RSP;
6403
6404 /* If there's nothing pending either store the data from this
6405 * event or send an immediate device found event if the data
6406 * should not be stored for later.
6407 */
6408 if (!ext_adv && !has_pending_adv_report(hdev)) {
6409 /* If the report will trigger a SCAN_REQ store it for
6410 * later merging.
6411 */
6412 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
6413 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6414 rssi, flags, data, len);
6415 return;
6416 }
6417
6418 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6419 rssi, flags, data, len, NULL, 0, 0);
6420 return;
6421 }
6422
6423 /* Check if the pending report is for the same device as the new one */
6424 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
6425 bdaddr_type == d->last_adv_addr_type);
6426
6427 /* If the pending data doesn't match this report or this isn't a
6428 * scan response (e.g. we got a duplicate ADV_IND) then force
6429 * sending of the pending data.
6430 */
6431 if (type != LE_ADV_SCAN_RSP || !match) {
6432 /* Send out whatever is in the cache, but skip duplicates */
6433 if (!match)
6434 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6435 d->last_adv_addr_type, NULL,
6436 d->last_adv_rssi, d->last_adv_flags,
6437 d->last_adv_data,
6438 d->last_adv_data_len, NULL, 0, 0);
6439
6440 /* If the new report will trigger a SCAN_REQ store it for
6441 * later merging.
6442 */
6443 if (!ext_adv && (type == LE_ADV_IND ||
6444 type == LE_ADV_SCAN_IND)) {
6445 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
6446 rssi, flags, data, len);
6447 return;
6448 }
6449
6450 /* The advertising reports cannot be merged, so clear
6451 * the pending report and send out a device found event.
6452 */
6453 clear_pending_adv_report(hdev);
6454 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6455 rssi, flags, data, len, NULL, 0, 0);
6456 return;
6457 }
6458
6459 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
6460 * the new event is a SCAN_RSP. We can therefore proceed with
6461 * sending a merged device found event.
6462 */
6463 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
6464 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
6465 d->last_adv_data, d->last_adv_data_len, data, len, 0);
6466 clear_pending_adv_report(hdev);
6467}
6468
6469static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data,
6470 struct sk_buff *skb)
6471{
6472 struct hci_ev_le_advertising_report *ev = data;
6473 u64 instant = jiffies;
6474
6475 if (!ev->num)
6476 return;
6477
6478 hci_dev_lock(hdev);
6479
6480 while (ev->num--) {
6481 struct hci_ev_le_advertising_info *info;
6482 s8 rssi;
6483
6484 info = hci_le_ev_skb_pull(hdev, skb,
6485 HCI_EV_LE_ADVERTISING_REPORT,
6486 sizeof(*info));
6487 if (!info)
6488 break;
6489
6490 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_ADVERTISING_REPORT,
6491 info->length + 1))
6492 break;
6493
6494 if (info->length <= max_adv_len(hdev)) {
6495 rssi = info->data[info->length];
6496 process_adv_report(hdev, info->type, &info->bdaddr,
6497 info->bdaddr_type, NULL, 0, rssi,
6498 info->data, info->length, false,
6499 false, instant);
6500 } else {
6501 bt_dev_err(hdev, "Dropping invalid advertising data");
6502 }
6503 }
6504
6505 hci_dev_unlock(hdev);
6506}
6507
6508static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type)
6509{
6510 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
6511 switch (evt_type) {
6512 case LE_LEGACY_ADV_IND:
6513 return LE_ADV_IND;
6514 case LE_LEGACY_ADV_DIRECT_IND:
6515 return LE_ADV_DIRECT_IND;
6516 case LE_LEGACY_ADV_SCAN_IND:
6517 return LE_ADV_SCAN_IND;
6518 case LE_LEGACY_NONCONN_IND:
6519 return LE_ADV_NONCONN_IND;
6520 case LE_LEGACY_SCAN_RSP_ADV:
6521 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
6522 return LE_ADV_SCAN_RSP;
6523 }
6524
6525 goto invalid;
6526 }
6527
6528 if (evt_type & LE_EXT_ADV_CONN_IND) {
6529 if (evt_type & LE_EXT_ADV_DIRECT_IND)
6530 return LE_ADV_DIRECT_IND;
6531
6532 return LE_ADV_IND;
6533 }
6534
6535 if (evt_type & LE_EXT_ADV_SCAN_RSP)
6536 return LE_ADV_SCAN_RSP;
6537
6538 if (evt_type & LE_EXT_ADV_SCAN_IND)
6539 return LE_ADV_SCAN_IND;
6540
6541 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
6542 evt_type & LE_EXT_ADV_DIRECT_IND)
6543 return LE_ADV_NONCONN_IND;
6544
6545invalid:
6546 bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x",
6547 evt_type);
6548
6549 return LE_ADV_INVALID;
6550}
6551
6552static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
6553 struct sk_buff *skb)
6554{
6555 struct hci_ev_le_ext_adv_report *ev = data;
6556 u64 instant = jiffies;
6557
6558 if (!ev->num)
6559 return;
6560
6561 hci_dev_lock(hdev);
6562
6563 while (ev->num--) {
6564 struct hci_ev_le_ext_adv_info *info;
6565 u8 legacy_evt_type;
6566 u16 evt_type;
6567
6568 info = hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6569 sizeof(*info));
6570 if (!info)
6571 break;
6572
6573 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6574 info->length))
6575 break;
6576
6577 evt_type = __le16_to_cpu(info->type) & LE_EXT_ADV_EVT_TYPE_MASK;
6578 legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
6579 if (legacy_evt_type != LE_ADV_INVALID) {
6580 process_adv_report(hdev, legacy_evt_type, &info->bdaddr,
6581 info->bdaddr_type, NULL, 0,
6582 info->rssi, info->data, info->length,
6583 !(evt_type & LE_EXT_ADV_LEGACY_PDU),
6584 false, instant);
6585 }
6586 }
6587
6588 hci_dev_unlock(hdev);
6589}
6590
6591static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
6592{
6593 struct hci_cp_le_pa_term_sync cp;
6594
6595 memset(&cp, 0, sizeof(cp));
6596 cp.handle = handle;
6597
6598 return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
6599}
6600
6601static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data,
6602 struct sk_buff *skb)
6603{
6604 struct hci_ev_le_pa_sync_established *ev = data;
6605 int mask = hdev->link_mode;
6606 __u8 flags = 0;
6607 struct hci_conn *pa_sync;
6608
6609 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6610
6611 hci_dev_lock(hdev);
6612
6613 hci_dev_clear_flag(hdev, HCI_PA_SYNC);
6614
6615 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ISO_LINK, &flags);
6616 if (!(mask & HCI_LM_ACCEPT)) {
6617 hci_le_pa_term_sync(hdev, ev->handle);
6618 goto unlock;
6619 }
6620
6621 if (!(flags & HCI_PROTO_DEFER))
6622 goto unlock;
6623
6624 if (ev->status) {
6625 /* Add connection to indicate the failed PA sync event */
6626 pa_sync = hci_conn_add_unset(hdev, ISO_LINK, BDADDR_ANY,
6627 HCI_ROLE_SLAVE);
6628
6629 if (!pa_sync)
6630 goto unlock;
6631
6632 set_bit(HCI_CONN_PA_SYNC_FAILED, &pa_sync->flags);
6633
6634 /* Notify iso layer */
6635 hci_connect_cfm(pa_sync, ev->status);
6636 }
6637
6638unlock:
6639 hci_dev_unlock(hdev);
6640}
6641
6642static void hci_le_per_adv_report_evt(struct hci_dev *hdev, void *data,
6643 struct sk_buff *skb)
6644{
6645 struct hci_ev_le_per_adv_report *ev = data;
6646 int mask = hdev->link_mode;
6647 __u8 flags = 0;
6648
6649 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
6650
6651 hci_dev_lock(hdev);
6652
6653 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
6654 if (!(mask & HCI_LM_ACCEPT))
6655 hci_le_pa_term_sync(hdev, ev->sync_handle);
6656
6657 hci_dev_unlock(hdev);
6658}
6659
6660static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data,
6661 struct sk_buff *skb)
6662{
6663 struct hci_ev_le_remote_feat_complete *ev = data;
6664 struct hci_conn *conn;
6665
6666 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6667
6668 hci_dev_lock(hdev);
6669
6670 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6671 if (conn) {
6672 if (!ev->status)
6673 memcpy(conn->features[0], ev->features, 8);
6674
6675 if (conn->state == BT_CONFIG) {
6676 __u8 status;
6677
6678 /* If the local controller supports peripheral-initiated
6679 * features exchange, but the remote controller does
6680 * not, then it is possible that the error code 0x1a
6681 * for unsupported remote feature gets returned.
6682 *
6683 * In this specific case, allow the connection to
6684 * transition into connected state and mark it as
6685 * successful.
6686 */
6687 if (!conn->out && ev->status == 0x1a &&
6688 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
6689 status = 0x00;
6690 else
6691 status = ev->status;
6692
6693 conn->state = BT_CONNECTED;
6694 hci_connect_cfm(conn, status);
6695 hci_conn_drop(conn);
6696 }
6697 }
6698
6699 hci_dev_unlock(hdev);
6700}
6701
6702static void hci_le_ltk_request_evt(struct hci_dev *hdev, void *data,
6703 struct sk_buff *skb)
6704{
6705 struct hci_ev_le_ltk_req *ev = data;
6706 struct hci_cp_le_ltk_reply cp;
6707 struct hci_cp_le_ltk_neg_reply neg;
6708 struct hci_conn *conn;
6709 struct smp_ltk *ltk;
6710
6711 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6712
6713 hci_dev_lock(hdev);
6714
6715 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6716 if (conn == NULL)
6717 goto not_found;
6718
6719 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
6720 if (!ltk)
6721 goto not_found;
6722
6723 if (smp_ltk_is_sc(ltk)) {
6724 /* With SC both EDiv and Rand are set to zero */
6725 if (ev->ediv || ev->rand)
6726 goto not_found;
6727 } else {
6728 /* For non-SC keys check that EDiv and Rand match */
6729 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
6730 goto not_found;
6731 }
6732
6733 memcpy(cp.ltk, ltk->val, ltk->enc_size);
6734 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
6735 cp.handle = cpu_to_le16(conn->handle);
6736
6737 conn->pending_sec_level = smp_ltk_sec_level(ltk);
6738
6739 conn->enc_key_size = ltk->enc_size;
6740
6741 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
6742
6743 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
6744 * temporary key used to encrypt a connection following
6745 * pairing. It is used during the Encrypted Session Setup to
6746 * distribute the keys. Later, security can be re-established
6747 * using a distributed LTK.
6748 */
6749 if (ltk->type == SMP_STK) {
6750 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6751 list_del_rcu(<k->list);
6752 kfree_rcu(ltk, rcu);
6753 } else {
6754 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
6755 }
6756
6757 hci_dev_unlock(hdev);
6758
6759 return;
6760
6761not_found:
6762 neg.handle = ev->handle;
6763 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
6764 hci_dev_unlock(hdev);
6765}
6766
6767static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
6768 u8 reason)
6769{
6770 struct hci_cp_le_conn_param_req_neg_reply cp;
6771
6772 cp.handle = cpu_to_le16(handle);
6773 cp.reason = reason;
6774
6775 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
6776 &cp);
6777}
6778
6779static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
6780 struct sk_buff *skb)
6781{
6782 struct hci_ev_le_remote_conn_param_req *ev = data;
6783 struct hci_cp_le_conn_param_req_reply cp;
6784 struct hci_conn *hcon;
6785 u16 handle, min, max, latency, timeout;
6786
6787 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
6788
6789 handle = le16_to_cpu(ev->handle);
6790 min = le16_to_cpu(ev->interval_min);
6791 max = le16_to_cpu(ev->interval_max);
6792 latency = le16_to_cpu(ev->latency);
6793 timeout = le16_to_cpu(ev->timeout);
6794
6795 hcon = hci_conn_hash_lookup_handle(hdev, handle);
6796 if (!hcon || hcon->state != BT_CONNECTED)
6797 return send_conn_param_neg_reply(hdev, handle,
6798 HCI_ERROR_UNKNOWN_CONN_ID);
6799
6800 if (max > hcon->le_conn_max_interval)
6801 return send_conn_param_neg_reply(hdev, handle,
6802 HCI_ERROR_INVALID_LL_PARAMS);
6803
6804 if (hci_check_conn_params(min, max, latency, timeout))
6805 return send_conn_param_neg_reply(hdev, handle,
6806 HCI_ERROR_INVALID_LL_PARAMS);
6807
6808 if (hcon->role == HCI_ROLE_MASTER) {
6809 struct hci_conn_params *params;
6810 u8 store_hint;
6811
6812 hci_dev_lock(hdev);
6813
6814 params = hci_conn_params_lookup(hdev, &hcon->dst,
6815 hcon->dst_type);
6816 if (params) {
6817 params->conn_min_interval = min;
6818 params->conn_max_interval = max;
6819 params->conn_latency = latency;
6820 params->supervision_timeout = timeout;
6821 store_hint = 0x01;
6822 } else {
6823 store_hint = 0x00;
6824 }
6825
6826 hci_dev_unlock(hdev);
6827
6828 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
6829 store_hint, min, max, latency, timeout);
6830 }
6831
6832 cp.handle = ev->handle;
6833 cp.interval_min = ev->interval_min;
6834 cp.interval_max = ev->interval_max;
6835 cp.latency = ev->latency;
6836 cp.timeout = ev->timeout;
6837 cp.min_ce_len = 0;
6838 cp.max_ce_len = 0;
6839
6840 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
6841}
6842
6843static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
6844 struct sk_buff *skb)
6845{
6846 struct hci_ev_le_direct_adv_report *ev = data;
6847 u64 instant = jiffies;
6848 int i;
6849
6850 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_DIRECT_ADV_REPORT,
6851 flex_array_size(ev, info, ev->num)))
6852 return;
6853
6854 if (!ev->num)
6855 return;
6856
6857 hci_dev_lock(hdev);
6858
6859 for (i = 0; i < ev->num; i++) {
6860 struct hci_ev_le_direct_adv_info *info = &ev->info[i];
6861
6862 process_adv_report(hdev, info->type, &info->bdaddr,
6863 info->bdaddr_type, &info->direct_addr,
6864 info->direct_addr_type, info->rssi, NULL, 0,
6865 false, false, instant);
6866 }
6867
6868 hci_dev_unlock(hdev);
6869}
6870
6871static void hci_le_phy_update_evt(struct hci_dev *hdev, void *data,
6872 struct sk_buff *skb)
6873{
6874 struct hci_ev_le_phy_update_complete *ev = data;
6875 struct hci_conn *conn;
6876
6877 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6878
6879 if (ev->status)
6880 return;
6881
6882 hci_dev_lock(hdev);
6883
6884 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6885 if (!conn)
6886 goto unlock;
6887
6888 conn->le_tx_phy = ev->tx_phy;
6889 conn->le_rx_phy = ev->rx_phy;
6890
6891unlock:
6892 hci_dev_unlock(hdev);
6893}
6894
6895static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
6896 struct sk_buff *skb)
6897{
6898 struct hci_evt_le_cis_established *ev = data;
6899 struct hci_conn *conn;
6900 struct bt_iso_qos *qos;
6901 bool pending = false;
6902 u16 handle = __le16_to_cpu(ev->handle);
6903
6904 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6905
6906 hci_dev_lock(hdev);
6907
6908 conn = hci_conn_hash_lookup_handle(hdev, handle);
6909 if (!conn) {
6910 bt_dev_err(hdev,
6911 "Unable to find connection with handle 0x%4.4x",
6912 handle);
6913 goto unlock;
6914 }
6915
6916 if (conn->type != ISO_LINK) {
6917 bt_dev_err(hdev,
6918 "Invalid connection link type handle 0x%4.4x",
6919 handle);
6920 goto unlock;
6921 }
6922
6923 qos = &conn->iso_qos;
6924
6925 pending = test_and_clear_bit(HCI_CONN_CREATE_CIS, &conn->flags);
6926
6927 /* Convert ISO Interval (1.25 ms slots) to SDU Interval (us) */
6928 qos->ucast.in.interval = le16_to_cpu(ev->interval) * 1250;
6929 qos->ucast.out.interval = qos->ucast.in.interval;
6930
6931 switch (conn->role) {
6932 case HCI_ROLE_SLAVE:
6933 /* Convert Transport Latency (us) to Latency (msec) */
6934 qos->ucast.in.latency =
6935 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency),
6936 1000);
6937 qos->ucast.out.latency =
6938 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->p_latency),
6939 1000);
6940 qos->ucast.in.sdu = le16_to_cpu(ev->c_mtu);
6941 qos->ucast.out.sdu = le16_to_cpu(ev->p_mtu);
6942 qos->ucast.in.phy = ev->c_phy;
6943 qos->ucast.out.phy = ev->p_phy;
6944 break;
6945 case HCI_ROLE_MASTER:
6946 /* Convert Transport Latency (us) to Latency (msec) */
6947 qos->ucast.out.latency =
6948 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency),
6949 1000);
6950 qos->ucast.in.latency =
6951 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->p_latency),
6952 1000);
6953 qos->ucast.out.sdu = le16_to_cpu(ev->c_mtu);
6954 qos->ucast.in.sdu = le16_to_cpu(ev->p_mtu);
6955 qos->ucast.out.phy = ev->c_phy;
6956 qos->ucast.in.phy = ev->p_phy;
6957 break;
6958 }
6959
6960 if (!ev->status) {
6961 conn->state = BT_CONNECTED;
6962 hci_debugfs_create_conn(conn);
6963 hci_conn_add_sysfs(conn);
6964 hci_iso_setup_path(conn);
6965 goto unlock;
6966 }
6967
6968 conn->state = BT_CLOSED;
6969 hci_connect_cfm(conn, ev->status);
6970 hci_conn_del(conn);
6971
6972unlock:
6973 if (pending)
6974 hci_le_create_cis_pending(hdev);
6975
6976 hci_dev_unlock(hdev);
6977}
6978
6979static void hci_le_reject_cis(struct hci_dev *hdev, __le16 handle)
6980{
6981 struct hci_cp_le_reject_cis cp;
6982
6983 memset(&cp, 0, sizeof(cp));
6984 cp.handle = handle;
6985 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
6986 hci_send_cmd(hdev, HCI_OP_LE_REJECT_CIS, sizeof(cp), &cp);
6987}
6988
6989static void hci_le_accept_cis(struct hci_dev *hdev, __le16 handle)
6990{
6991 struct hci_cp_le_accept_cis cp;
6992
6993 memset(&cp, 0, sizeof(cp));
6994 cp.handle = handle;
6995 hci_send_cmd(hdev, HCI_OP_LE_ACCEPT_CIS, sizeof(cp), &cp);
6996}
6997
6998static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
6999 struct sk_buff *skb)
7000{
7001 struct hci_evt_le_cis_req *ev = data;
7002 u16 acl_handle, cis_handle;
7003 struct hci_conn *acl, *cis;
7004 int mask;
7005 __u8 flags = 0;
7006
7007 acl_handle = __le16_to_cpu(ev->acl_handle);
7008 cis_handle = __le16_to_cpu(ev->cis_handle);
7009
7010 bt_dev_dbg(hdev, "acl 0x%4.4x handle 0x%4.4x cig 0x%2.2x cis 0x%2.2x",
7011 acl_handle, cis_handle, ev->cig_id, ev->cis_id);
7012
7013 hci_dev_lock(hdev);
7014
7015 acl = hci_conn_hash_lookup_handle(hdev, acl_handle);
7016 if (!acl)
7017 goto unlock;
7018
7019 mask = hci_proto_connect_ind(hdev, &acl->dst, ISO_LINK, &flags);
7020 if (!(mask & HCI_LM_ACCEPT)) {
7021 hci_le_reject_cis(hdev, ev->cis_handle);
7022 goto unlock;
7023 }
7024
7025 cis = hci_conn_hash_lookup_handle(hdev, cis_handle);
7026 if (!cis) {
7027 cis = hci_conn_add(hdev, ISO_LINK, &acl->dst, HCI_ROLE_SLAVE,
7028 cis_handle);
7029 if (!cis) {
7030 hci_le_reject_cis(hdev, ev->cis_handle);
7031 goto unlock;
7032 }
7033 }
7034
7035 cis->iso_qos.ucast.cig = ev->cig_id;
7036 cis->iso_qos.ucast.cis = ev->cis_id;
7037
7038 if (!(flags & HCI_PROTO_DEFER)) {
7039 hci_le_accept_cis(hdev, ev->cis_handle);
7040 } else {
7041 cis->state = BT_CONNECT2;
7042 hci_connect_cfm(cis, 0);
7043 }
7044
7045unlock:
7046 hci_dev_unlock(hdev);
7047}
7048
7049static int hci_iso_term_big_sync(struct hci_dev *hdev, void *data)
7050{
7051 u8 handle = PTR_UINT(data);
7052
7053 return hci_le_terminate_big_sync(hdev, handle,
7054 HCI_ERROR_LOCAL_HOST_TERM);
7055}
7056
7057static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
7058 struct sk_buff *skb)
7059{
7060 struct hci_evt_le_create_big_complete *ev = data;
7061 struct hci_conn *conn;
7062 __u8 i = 0;
7063
7064 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
7065
7066 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_CREATE_BIG_COMPLETE,
7067 flex_array_size(ev, bis_handle, ev->num_bis)))
7068 return;
7069
7070 hci_dev_lock(hdev);
7071 rcu_read_lock();
7072
7073 /* Connect all BISes that are bound to the BIG */
7074 list_for_each_entry_rcu(conn, &hdev->conn_hash.list, list) {
7075 if (bacmp(&conn->dst, BDADDR_ANY) ||
7076 conn->type != ISO_LINK ||
7077 conn->iso_qos.bcast.big != ev->handle)
7078 continue;
7079
7080 if (hci_conn_set_handle(conn,
7081 __le16_to_cpu(ev->bis_handle[i++])))
7082 continue;
7083
7084 if (!ev->status) {
7085 conn->state = BT_CONNECTED;
7086 set_bit(HCI_CONN_BIG_CREATED, &conn->flags);
7087 rcu_read_unlock();
7088 hci_debugfs_create_conn(conn);
7089 hci_conn_add_sysfs(conn);
7090 hci_iso_setup_path(conn);
7091 rcu_read_lock();
7092 continue;
7093 }
7094
7095 hci_connect_cfm(conn, ev->status);
7096 rcu_read_unlock();
7097 hci_conn_del(conn);
7098 rcu_read_lock();
7099 }
7100
7101 rcu_read_unlock();
7102
7103 if (!ev->status && !i)
7104 /* If no BISes have been connected for the BIG,
7105 * terminate. This is in case all bound connections
7106 * have been closed before the BIG creation
7107 * has completed.
7108 */
7109 hci_cmd_sync_queue(hdev, hci_iso_term_big_sync,
7110 UINT_PTR(ev->handle), NULL);
7111
7112 hci_dev_unlock(hdev);
7113}
7114
7115static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
7116 struct sk_buff *skb)
7117{
7118 struct hci_evt_le_big_sync_estabilished *ev = data;
7119 struct hci_conn *bis;
7120 int i;
7121
7122 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
7123
7124 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7125 flex_array_size(ev, bis, ev->num_bis)))
7126 return;
7127
7128 hci_dev_lock(hdev);
7129
7130 for (i = 0; i < ev->num_bis; i++) {
7131 u16 handle = le16_to_cpu(ev->bis[i]);
7132 __le32 interval;
7133
7134 bis = hci_conn_hash_lookup_handle(hdev, handle);
7135 if (!bis) {
7136 bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
7137 HCI_ROLE_SLAVE, handle);
7138 if (!bis)
7139 continue;
7140 }
7141
7142 if (ev->status != 0x42)
7143 /* Mark PA sync as established */
7144 set_bit(HCI_CONN_PA_SYNC, &bis->flags);
7145
7146 bis->iso_qos.bcast.big = ev->handle;
7147 memset(&interval, 0, sizeof(interval));
7148 memcpy(&interval, ev->latency, sizeof(ev->latency));
7149 bis->iso_qos.bcast.in.interval = le32_to_cpu(interval);
7150 /* Convert ISO Interval (1.25 ms slots) to latency (ms) */
7151 bis->iso_qos.bcast.in.latency = le16_to_cpu(ev->interval) * 125 / 100;
7152 bis->iso_qos.bcast.in.sdu = le16_to_cpu(ev->max_pdu);
7153
7154 if (!ev->status) {
7155 set_bit(HCI_CONN_BIG_SYNC, &bis->flags);
7156 hci_iso_setup_path(bis);
7157 }
7158 }
7159
7160 /* In case BIG sync failed, notify each failed connection to
7161 * the user after all hci connections have been added
7162 */
7163 if (ev->status)
7164 for (i = 0; i < ev->num_bis; i++) {
7165 u16 handle = le16_to_cpu(ev->bis[i]);
7166
7167 bis = hci_conn_hash_lookup_handle(hdev, handle);
7168
7169 set_bit(HCI_CONN_BIG_SYNC_FAILED, &bis->flags);
7170 hci_connect_cfm(bis, ev->status);
7171 }
7172
7173 hci_dev_unlock(hdev);
7174}
7175
7176static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
7177 struct sk_buff *skb)
7178{
7179 struct hci_evt_le_big_info_adv_report *ev = data;
7180 int mask = hdev->link_mode;
7181 __u8 flags = 0;
7182 struct hci_conn *pa_sync;
7183
7184 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
7185
7186 hci_dev_lock(hdev);
7187
7188 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
7189 if (!(mask & HCI_LM_ACCEPT)) {
7190 hci_le_pa_term_sync(hdev, ev->sync_handle);
7191 goto unlock;
7192 }
7193
7194 if (!(flags & HCI_PROTO_DEFER))
7195 goto unlock;
7196
7197 pa_sync = hci_conn_hash_lookup_pa_sync_handle
7198 (hdev,
7199 le16_to_cpu(ev->sync_handle));
7200
7201 if (pa_sync)
7202 goto unlock;
7203
7204 /* Add connection to indicate the PA sync event */
7205 pa_sync = hci_conn_add_unset(hdev, ISO_LINK, BDADDR_ANY,
7206 HCI_ROLE_SLAVE);
7207
7208 if (!pa_sync)
7209 goto unlock;
7210
7211 pa_sync->sync_handle = le16_to_cpu(ev->sync_handle);
7212 set_bit(HCI_CONN_PA_SYNC, &pa_sync->flags);
7213
7214 /* Notify iso layer */
7215 hci_connect_cfm(pa_sync, 0x00);
7216
7217unlock:
7218 hci_dev_unlock(hdev);
7219}
7220
7221#define HCI_LE_EV_VL(_op, _func, _min_len, _max_len) \
7222[_op] = { \
7223 .func = _func, \
7224 .min_len = _min_len, \
7225 .max_len = _max_len, \
7226}
7227
7228#define HCI_LE_EV(_op, _func, _len) \
7229 HCI_LE_EV_VL(_op, _func, _len, _len)
7230
7231#define HCI_LE_EV_STATUS(_op, _func) \
7232 HCI_LE_EV(_op, _func, sizeof(struct hci_ev_status))
7233
7234/* Entries in this table shall have their position according to the subevent
7235 * opcode they handle so the use of the macros above is recommend since it does
7236 * attempt to initialize at its proper index using Designated Initializers that
7237 * way events without a callback function can be ommited.
7238 */
7239static const struct hci_le_ev {
7240 void (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
7241 u16 min_len;
7242 u16 max_len;
7243} hci_le_ev_table[U8_MAX + 1] = {
7244 /* [0x01 = HCI_EV_LE_CONN_COMPLETE] */
7245 HCI_LE_EV(HCI_EV_LE_CONN_COMPLETE, hci_le_conn_complete_evt,
7246 sizeof(struct hci_ev_le_conn_complete)),
7247 /* [0x02 = HCI_EV_LE_ADVERTISING_REPORT] */
7248 HCI_LE_EV_VL(HCI_EV_LE_ADVERTISING_REPORT, hci_le_adv_report_evt,
7249 sizeof(struct hci_ev_le_advertising_report),
7250 HCI_MAX_EVENT_SIZE),
7251 /* [0x03 = HCI_EV_LE_CONN_UPDATE_COMPLETE] */
7252 HCI_LE_EV(HCI_EV_LE_CONN_UPDATE_COMPLETE,
7253 hci_le_conn_update_complete_evt,
7254 sizeof(struct hci_ev_le_conn_update_complete)),
7255 /* [0x04 = HCI_EV_LE_REMOTE_FEAT_COMPLETE] */
7256 HCI_LE_EV(HCI_EV_LE_REMOTE_FEAT_COMPLETE,
7257 hci_le_remote_feat_complete_evt,
7258 sizeof(struct hci_ev_le_remote_feat_complete)),
7259 /* [0x05 = HCI_EV_LE_LTK_REQ] */
7260 HCI_LE_EV(HCI_EV_LE_LTK_REQ, hci_le_ltk_request_evt,
7261 sizeof(struct hci_ev_le_ltk_req)),
7262 /* [0x06 = HCI_EV_LE_REMOTE_CONN_PARAM_REQ] */
7263 HCI_LE_EV(HCI_EV_LE_REMOTE_CONN_PARAM_REQ,
7264 hci_le_remote_conn_param_req_evt,
7265 sizeof(struct hci_ev_le_remote_conn_param_req)),
7266 /* [0x0a = HCI_EV_LE_ENHANCED_CONN_COMPLETE] */
7267 HCI_LE_EV(HCI_EV_LE_ENHANCED_CONN_COMPLETE,
7268 hci_le_enh_conn_complete_evt,
7269 sizeof(struct hci_ev_le_enh_conn_complete)),
7270 /* [0x0b = HCI_EV_LE_DIRECT_ADV_REPORT] */
7271 HCI_LE_EV_VL(HCI_EV_LE_DIRECT_ADV_REPORT, hci_le_direct_adv_report_evt,
7272 sizeof(struct hci_ev_le_direct_adv_report),
7273 HCI_MAX_EVENT_SIZE),
7274 /* [0x0c = HCI_EV_LE_PHY_UPDATE_COMPLETE] */
7275 HCI_LE_EV(HCI_EV_LE_PHY_UPDATE_COMPLETE, hci_le_phy_update_evt,
7276 sizeof(struct hci_ev_le_phy_update_complete)),
7277 /* [0x0d = HCI_EV_LE_EXT_ADV_REPORT] */
7278 HCI_LE_EV_VL(HCI_EV_LE_EXT_ADV_REPORT, hci_le_ext_adv_report_evt,
7279 sizeof(struct hci_ev_le_ext_adv_report),
7280 HCI_MAX_EVENT_SIZE),
7281 /* [0x0e = HCI_EV_LE_PA_SYNC_ESTABLISHED] */
7282 HCI_LE_EV(HCI_EV_LE_PA_SYNC_ESTABLISHED,
7283 hci_le_pa_sync_estabilished_evt,
7284 sizeof(struct hci_ev_le_pa_sync_established)),
7285 /* [0x0f = HCI_EV_LE_PER_ADV_REPORT] */
7286 HCI_LE_EV_VL(HCI_EV_LE_PER_ADV_REPORT,
7287 hci_le_per_adv_report_evt,
7288 sizeof(struct hci_ev_le_per_adv_report),
7289 HCI_MAX_EVENT_SIZE),
7290 /* [0x12 = HCI_EV_LE_EXT_ADV_SET_TERM] */
7291 HCI_LE_EV(HCI_EV_LE_EXT_ADV_SET_TERM, hci_le_ext_adv_term_evt,
7292 sizeof(struct hci_evt_le_ext_adv_set_term)),
7293 /* [0x19 = HCI_EVT_LE_CIS_ESTABLISHED] */
7294 HCI_LE_EV(HCI_EVT_LE_CIS_ESTABLISHED, hci_le_cis_estabilished_evt,
7295 sizeof(struct hci_evt_le_cis_established)),
7296 /* [0x1a = HCI_EVT_LE_CIS_REQ] */
7297 HCI_LE_EV(HCI_EVT_LE_CIS_REQ, hci_le_cis_req_evt,
7298 sizeof(struct hci_evt_le_cis_req)),
7299 /* [0x1b = HCI_EVT_LE_CREATE_BIG_COMPLETE] */
7300 HCI_LE_EV_VL(HCI_EVT_LE_CREATE_BIG_COMPLETE,
7301 hci_le_create_big_complete_evt,
7302 sizeof(struct hci_evt_le_create_big_complete),
7303 HCI_MAX_EVENT_SIZE),
7304 /* [0x1d = HCI_EV_LE_BIG_SYNC_ESTABILISHED] */
7305 HCI_LE_EV_VL(HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7306 hci_le_big_sync_established_evt,
7307 sizeof(struct hci_evt_le_big_sync_estabilished),
7308 HCI_MAX_EVENT_SIZE),
7309 /* [0x22 = HCI_EVT_LE_BIG_INFO_ADV_REPORT] */
7310 HCI_LE_EV_VL(HCI_EVT_LE_BIG_INFO_ADV_REPORT,
7311 hci_le_big_info_adv_report_evt,
7312 sizeof(struct hci_evt_le_big_info_adv_report),
7313 HCI_MAX_EVENT_SIZE),
7314};
7315
7316static void hci_le_meta_evt(struct hci_dev *hdev, void *data,
7317 struct sk_buff *skb, u16 *opcode, u8 *status,
7318 hci_req_complete_t *req_complete,
7319 hci_req_complete_skb_t *req_complete_skb)
7320{
7321 struct hci_ev_le_meta *ev = data;
7322 const struct hci_le_ev *subev;
7323
7324 bt_dev_dbg(hdev, "subevent 0x%2.2x", ev->subevent);
7325
7326 /* Only match event if command OGF is for LE */
7327 if (hdev->sent_cmd &&
7328 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) == 0x08 &&
7329 hci_skb_event(hdev->sent_cmd) == ev->subevent) {
7330 *opcode = hci_skb_opcode(hdev->sent_cmd);
7331 hci_req_cmd_complete(hdev, *opcode, 0x00, req_complete,
7332 req_complete_skb);
7333 }
7334
7335 subev = &hci_le_ev_table[ev->subevent];
7336 if (!subev->func)
7337 return;
7338
7339 if (skb->len < subev->min_len) {
7340 bt_dev_err(hdev, "unexpected subevent 0x%2.2x length: %u < %u",
7341 ev->subevent, skb->len, subev->min_len);
7342 return;
7343 }
7344
7345 /* Just warn if the length is over max_len size it still be
7346 * possible to partially parse the event so leave to callback to
7347 * decide if that is acceptable.
7348 */
7349 if (skb->len > subev->max_len)
7350 bt_dev_warn(hdev, "unexpected subevent 0x%2.2x length: %u > %u",
7351 ev->subevent, skb->len, subev->max_len);
7352 data = hci_le_ev_skb_pull(hdev, skb, ev->subevent, subev->min_len);
7353 if (!data)
7354 return;
7355
7356 subev->func(hdev, data, skb);
7357}
7358
7359static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
7360 u8 event, struct sk_buff *skb)
7361{
7362 struct hci_ev_cmd_complete *ev;
7363 struct hci_event_hdr *hdr;
7364
7365 if (!skb)
7366 return false;
7367
7368 hdr = hci_ev_skb_pull(hdev, skb, event, sizeof(*hdr));
7369 if (!hdr)
7370 return false;
7371
7372 if (event) {
7373 if (hdr->evt != event)
7374 return false;
7375 return true;
7376 }
7377
7378 /* Check if request ended in Command Status - no way to retrieve
7379 * any extra parameters in this case.
7380 */
7381 if (hdr->evt == HCI_EV_CMD_STATUS)
7382 return false;
7383
7384 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
7385 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
7386 hdr->evt);
7387 return false;
7388 }
7389
7390 ev = hci_cc_skb_pull(hdev, skb, opcode, sizeof(*ev));
7391 if (!ev)
7392 return false;
7393
7394 if (opcode != __le16_to_cpu(ev->opcode)) {
7395 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
7396 __le16_to_cpu(ev->opcode));
7397 return false;
7398 }
7399
7400 return true;
7401}
7402
7403static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
7404 struct sk_buff *skb)
7405{
7406 struct hci_ev_le_advertising_info *adv;
7407 struct hci_ev_le_direct_adv_info *direct_adv;
7408 struct hci_ev_le_ext_adv_info *ext_adv;
7409 const struct hci_ev_conn_complete *conn_complete = (void *)skb->data;
7410 const struct hci_ev_conn_request *conn_request = (void *)skb->data;
7411
7412 hci_dev_lock(hdev);
7413
7414 /* If we are currently suspended and this is the first BT event seen,
7415 * save the wake reason associated with the event.
7416 */
7417 if (!hdev->suspended || hdev->wake_reason)
7418 goto unlock;
7419
7420 /* Default to remote wake. Values for wake_reason are documented in the
7421 * Bluez mgmt api docs.
7422 */
7423 hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE;
7424
7425 /* Once configured for remote wakeup, we should only wake up for
7426 * reconnections. It's useful to see which device is waking us up so
7427 * keep track of the bdaddr of the connection event that woke us up.
7428 */
7429 if (event == HCI_EV_CONN_REQUEST) {
7430 bacpy(&hdev->wake_addr, &conn_request->bdaddr);
7431 hdev->wake_addr_type = BDADDR_BREDR;
7432 } else if (event == HCI_EV_CONN_COMPLETE) {
7433 bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
7434 hdev->wake_addr_type = BDADDR_BREDR;
7435 } else if (event == HCI_EV_LE_META) {
7436 struct hci_ev_le_meta *le_ev = (void *)skb->data;
7437 u8 subevent = le_ev->subevent;
7438 u8 *ptr = &skb->data[sizeof(*le_ev)];
7439 u8 num_reports = *ptr;
7440
7441 if ((subevent == HCI_EV_LE_ADVERTISING_REPORT ||
7442 subevent == HCI_EV_LE_DIRECT_ADV_REPORT ||
7443 subevent == HCI_EV_LE_EXT_ADV_REPORT) &&
7444 num_reports) {
7445 adv = (void *)(ptr + 1);
7446 direct_adv = (void *)(ptr + 1);
7447 ext_adv = (void *)(ptr + 1);
7448
7449 switch (subevent) {
7450 case HCI_EV_LE_ADVERTISING_REPORT:
7451 bacpy(&hdev->wake_addr, &adv->bdaddr);
7452 hdev->wake_addr_type = adv->bdaddr_type;
7453 break;
7454 case HCI_EV_LE_DIRECT_ADV_REPORT:
7455 bacpy(&hdev->wake_addr, &direct_adv->bdaddr);
7456 hdev->wake_addr_type = direct_adv->bdaddr_type;
7457 break;
7458 case HCI_EV_LE_EXT_ADV_REPORT:
7459 bacpy(&hdev->wake_addr, &ext_adv->bdaddr);
7460 hdev->wake_addr_type = ext_adv->bdaddr_type;
7461 break;
7462 }
7463 }
7464 } else {
7465 hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
7466 }
7467
7468unlock:
7469 hci_dev_unlock(hdev);
7470}
7471
7472#define HCI_EV_VL(_op, _func, _min_len, _max_len) \
7473[_op] = { \
7474 .req = false, \
7475 .func = _func, \
7476 .min_len = _min_len, \
7477 .max_len = _max_len, \
7478}
7479
7480#define HCI_EV(_op, _func, _len) \
7481 HCI_EV_VL(_op, _func, _len, _len)
7482
7483#define HCI_EV_STATUS(_op, _func) \
7484 HCI_EV(_op, _func, sizeof(struct hci_ev_status))
7485
7486#define HCI_EV_REQ_VL(_op, _func, _min_len, _max_len) \
7487[_op] = { \
7488 .req = true, \
7489 .func_req = _func, \
7490 .min_len = _min_len, \
7491 .max_len = _max_len, \
7492}
7493
7494#define HCI_EV_REQ(_op, _func, _len) \
7495 HCI_EV_REQ_VL(_op, _func, _len, _len)
7496
7497/* Entries in this table shall have their position according to the event opcode
7498 * they handle so the use of the macros above is recommend since it does attempt
7499 * to initialize at its proper index using Designated Initializers that way
7500 * events without a callback function don't have entered.
7501 */
7502static const struct hci_ev {
7503 bool req;
7504 union {
7505 void (*func)(struct hci_dev *hdev, void *data,
7506 struct sk_buff *skb);
7507 void (*func_req)(struct hci_dev *hdev, void *data,
7508 struct sk_buff *skb, u16 *opcode, u8 *status,
7509 hci_req_complete_t *req_complete,
7510 hci_req_complete_skb_t *req_complete_skb);
7511 };
7512 u16 min_len;
7513 u16 max_len;
7514} hci_ev_table[U8_MAX + 1] = {
7515 /* [0x01 = HCI_EV_INQUIRY_COMPLETE] */
7516 HCI_EV_STATUS(HCI_EV_INQUIRY_COMPLETE, hci_inquiry_complete_evt),
7517 /* [0x02 = HCI_EV_INQUIRY_RESULT] */
7518 HCI_EV_VL(HCI_EV_INQUIRY_RESULT, hci_inquiry_result_evt,
7519 sizeof(struct hci_ev_inquiry_result), HCI_MAX_EVENT_SIZE),
7520 /* [0x03 = HCI_EV_CONN_COMPLETE] */
7521 HCI_EV(HCI_EV_CONN_COMPLETE, hci_conn_complete_evt,
7522 sizeof(struct hci_ev_conn_complete)),
7523 /* [0x04 = HCI_EV_CONN_REQUEST] */
7524 HCI_EV(HCI_EV_CONN_REQUEST, hci_conn_request_evt,
7525 sizeof(struct hci_ev_conn_request)),
7526 /* [0x05 = HCI_EV_DISCONN_COMPLETE] */
7527 HCI_EV(HCI_EV_DISCONN_COMPLETE, hci_disconn_complete_evt,
7528 sizeof(struct hci_ev_disconn_complete)),
7529 /* [0x06 = HCI_EV_AUTH_COMPLETE] */
7530 HCI_EV(HCI_EV_AUTH_COMPLETE, hci_auth_complete_evt,
7531 sizeof(struct hci_ev_auth_complete)),
7532 /* [0x07 = HCI_EV_REMOTE_NAME] */
7533 HCI_EV(HCI_EV_REMOTE_NAME, hci_remote_name_evt,
7534 sizeof(struct hci_ev_remote_name)),
7535 /* [0x08 = HCI_EV_ENCRYPT_CHANGE] */
7536 HCI_EV(HCI_EV_ENCRYPT_CHANGE, hci_encrypt_change_evt,
7537 sizeof(struct hci_ev_encrypt_change)),
7538 /* [0x09 = HCI_EV_CHANGE_LINK_KEY_COMPLETE] */
7539 HCI_EV(HCI_EV_CHANGE_LINK_KEY_COMPLETE,
7540 hci_change_link_key_complete_evt,
7541 sizeof(struct hci_ev_change_link_key_complete)),
7542 /* [0x0b = HCI_EV_REMOTE_FEATURES] */
7543 HCI_EV(HCI_EV_REMOTE_FEATURES, hci_remote_features_evt,
7544 sizeof(struct hci_ev_remote_features)),
7545 /* [0x0e = HCI_EV_CMD_COMPLETE] */
7546 HCI_EV_REQ_VL(HCI_EV_CMD_COMPLETE, hci_cmd_complete_evt,
7547 sizeof(struct hci_ev_cmd_complete), HCI_MAX_EVENT_SIZE),
7548 /* [0x0f = HCI_EV_CMD_STATUS] */
7549 HCI_EV_REQ(HCI_EV_CMD_STATUS, hci_cmd_status_evt,
7550 sizeof(struct hci_ev_cmd_status)),
7551 /* [0x10 = HCI_EV_CMD_STATUS] */
7552 HCI_EV(HCI_EV_HARDWARE_ERROR, hci_hardware_error_evt,
7553 sizeof(struct hci_ev_hardware_error)),
7554 /* [0x12 = HCI_EV_ROLE_CHANGE] */
7555 HCI_EV(HCI_EV_ROLE_CHANGE, hci_role_change_evt,
7556 sizeof(struct hci_ev_role_change)),
7557 /* [0x13 = HCI_EV_NUM_COMP_PKTS] */
7558 HCI_EV_VL(HCI_EV_NUM_COMP_PKTS, hci_num_comp_pkts_evt,
7559 sizeof(struct hci_ev_num_comp_pkts), HCI_MAX_EVENT_SIZE),
7560 /* [0x14 = HCI_EV_MODE_CHANGE] */
7561 HCI_EV(HCI_EV_MODE_CHANGE, hci_mode_change_evt,
7562 sizeof(struct hci_ev_mode_change)),
7563 /* [0x16 = HCI_EV_PIN_CODE_REQ] */
7564 HCI_EV(HCI_EV_PIN_CODE_REQ, hci_pin_code_request_evt,
7565 sizeof(struct hci_ev_pin_code_req)),
7566 /* [0x17 = HCI_EV_LINK_KEY_REQ] */
7567 HCI_EV(HCI_EV_LINK_KEY_REQ, hci_link_key_request_evt,
7568 sizeof(struct hci_ev_link_key_req)),
7569 /* [0x18 = HCI_EV_LINK_KEY_NOTIFY] */
7570 HCI_EV(HCI_EV_LINK_KEY_NOTIFY, hci_link_key_notify_evt,
7571 sizeof(struct hci_ev_link_key_notify)),
7572 /* [0x1c = HCI_EV_CLOCK_OFFSET] */
7573 HCI_EV(HCI_EV_CLOCK_OFFSET, hci_clock_offset_evt,
7574 sizeof(struct hci_ev_clock_offset)),
7575 /* [0x1d = HCI_EV_PKT_TYPE_CHANGE] */
7576 HCI_EV(HCI_EV_PKT_TYPE_CHANGE, hci_pkt_type_change_evt,
7577 sizeof(struct hci_ev_pkt_type_change)),
7578 /* [0x20 = HCI_EV_PSCAN_REP_MODE] */
7579 HCI_EV(HCI_EV_PSCAN_REP_MODE, hci_pscan_rep_mode_evt,
7580 sizeof(struct hci_ev_pscan_rep_mode)),
7581 /* [0x22 = HCI_EV_INQUIRY_RESULT_WITH_RSSI] */
7582 HCI_EV_VL(HCI_EV_INQUIRY_RESULT_WITH_RSSI,
7583 hci_inquiry_result_with_rssi_evt,
7584 sizeof(struct hci_ev_inquiry_result_rssi),
7585 HCI_MAX_EVENT_SIZE),
7586 /* [0x23 = HCI_EV_REMOTE_EXT_FEATURES] */
7587 HCI_EV(HCI_EV_REMOTE_EXT_FEATURES, hci_remote_ext_features_evt,
7588 sizeof(struct hci_ev_remote_ext_features)),
7589 /* [0x2c = HCI_EV_SYNC_CONN_COMPLETE] */
7590 HCI_EV(HCI_EV_SYNC_CONN_COMPLETE, hci_sync_conn_complete_evt,
7591 sizeof(struct hci_ev_sync_conn_complete)),
7592 /* [0x2d = HCI_EV_EXTENDED_INQUIRY_RESULT] */
7593 HCI_EV_VL(HCI_EV_EXTENDED_INQUIRY_RESULT,
7594 hci_extended_inquiry_result_evt,
7595 sizeof(struct hci_ev_ext_inquiry_result), HCI_MAX_EVENT_SIZE),
7596 /* [0x30 = HCI_EV_KEY_REFRESH_COMPLETE] */
7597 HCI_EV(HCI_EV_KEY_REFRESH_COMPLETE, hci_key_refresh_complete_evt,
7598 sizeof(struct hci_ev_key_refresh_complete)),
7599 /* [0x31 = HCI_EV_IO_CAPA_REQUEST] */
7600 HCI_EV(HCI_EV_IO_CAPA_REQUEST, hci_io_capa_request_evt,
7601 sizeof(struct hci_ev_io_capa_request)),
7602 /* [0x32 = HCI_EV_IO_CAPA_REPLY] */
7603 HCI_EV(HCI_EV_IO_CAPA_REPLY, hci_io_capa_reply_evt,
7604 sizeof(struct hci_ev_io_capa_reply)),
7605 /* [0x33 = HCI_EV_USER_CONFIRM_REQUEST] */
7606 HCI_EV(HCI_EV_USER_CONFIRM_REQUEST, hci_user_confirm_request_evt,
7607 sizeof(struct hci_ev_user_confirm_req)),
7608 /* [0x34 = HCI_EV_USER_PASSKEY_REQUEST] */
7609 HCI_EV(HCI_EV_USER_PASSKEY_REQUEST, hci_user_passkey_request_evt,
7610 sizeof(struct hci_ev_user_passkey_req)),
7611 /* [0x35 = HCI_EV_REMOTE_OOB_DATA_REQUEST] */
7612 HCI_EV(HCI_EV_REMOTE_OOB_DATA_REQUEST, hci_remote_oob_data_request_evt,
7613 sizeof(struct hci_ev_remote_oob_data_request)),
7614 /* [0x36 = HCI_EV_SIMPLE_PAIR_COMPLETE] */
7615 HCI_EV(HCI_EV_SIMPLE_PAIR_COMPLETE, hci_simple_pair_complete_evt,
7616 sizeof(struct hci_ev_simple_pair_complete)),
7617 /* [0x3b = HCI_EV_USER_PASSKEY_NOTIFY] */
7618 HCI_EV(HCI_EV_USER_PASSKEY_NOTIFY, hci_user_passkey_notify_evt,
7619 sizeof(struct hci_ev_user_passkey_notify)),
7620 /* [0x3c = HCI_EV_KEYPRESS_NOTIFY] */
7621 HCI_EV(HCI_EV_KEYPRESS_NOTIFY, hci_keypress_notify_evt,
7622 sizeof(struct hci_ev_keypress_notify)),
7623 /* [0x3d = HCI_EV_REMOTE_HOST_FEATURES] */
7624 HCI_EV(HCI_EV_REMOTE_HOST_FEATURES, hci_remote_host_features_evt,
7625 sizeof(struct hci_ev_remote_host_features)),
7626 /* [0x3e = HCI_EV_LE_META] */
7627 HCI_EV_REQ_VL(HCI_EV_LE_META, hci_le_meta_evt,
7628 sizeof(struct hci_ev_le_meta), HCI_MAX_EVENT_SIZE),
7629#if IS_ENABLED(CONFIG_BT_HS)
7630 /* [0x40 = HCI_EV_PHY_LINK_COMPLETE] */
7631 HCI_EV(HCI_EV_PHY_LINK_COMPLETE, hci_phy_link_complete_evt,
7632 sizeof(struct hci_ev_phy_link_complete)),
7633 /* [0x41 = HCI_EV_CHANNEL_SELECTED] */
7634 HCI_EV(HCI_EV_CHANNEL_SELECTED, hci_chan_selected_evt,
7635 sizeof(struct hci_ev_channel_selected)),
7636 /* [0x42 = HCI_EV_DISCONN_PHY_LINK_COMPLETE] */
7637 HCI_EV(HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE,
7638 hci_disconn_loglink_complete_evt,
7639 sizeof(struct hci_ev_disconn_logical_link_complete)),
7640 /* [0x45 = HCI_EV_LOGICAL_LINK_COMPLETE] */
7641 HCI_EV(HCI_EV_LOGICAL_LINK_COMPLETE, hci_loglink_complete_evt,
7642 sizeof(struct hci_ev_logical_link_complete)),
7643 /* [0x46 = HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE] */
7644 HCI_EV(HCI_EV_DISCONN_PHY_LINK_COMPLETE,
7645 hci_disconn_phylink_complete_evt,
7646 sizeof(struct hci_ev_disconn_phy_link_complete)),
7647#endif
7648 /* [0x48 = HCI_EV_NUM_COMP_BLOCKS] */
7649 HCI_EV(HCI_EV_NUM_COMP_BLOCKS, hci_num_comp_blocks_evt,
7650 sizeof(struct hci_ev_num_comp_blocks)),
7651 /* [0xff = HCI_EV_VENDOR] */
7652 HCI_EV_VL(HCI_EV_VENDOR, msft_vendor_evt, 0, HCI_MAX_EVENT_SIZE),
7653};
7654
7655static void hci_event_func(struct hci_dev *hdev, u8 event, struct sk_buff *skb,
7656 u16 *opcode, u8 *status,
7657 hci_req_complete_t *req_complete,
7658 hci_req_complete_skb_t *req_complete_skb)
7659{
7660 const struct hci_ev *ev = &hci_ev_table[event];
7661 void *data;
7662
7663 if (!ev->func)
7664 return;
7665
7666 if (skb->len < ev->min_len) {
7667 bt_dev_err(hdev, "unexpected event 0x%2.2x length: %u < %u",
7668 event, skb->len, ev->min_len);
7669 return;
7670 }
7671
7672 /* Just warn if the length is over max_len size it still be
7673 * possible to partially parse the event so leave to callback to
7674 * decide if that is acceptable.
7675 */
7676 if (skb->len > ev->max_len)
7677 bt_dev_warn_ratelimited(hdev,
7678 "unexpected event 0x%2.2x length: %u > %u",
7679 event, skb->len, ev->max_len);
7680
7681 data = hci_ev_skb_pull(hdev, skb, event, ev->min_len);
7682 if (!data)
7683 return;
7684
7685 if (ev->req)
7686 ev->func_req(hdev, data, skb, opcode, status, req_complete,
7687 req_complete_skb);
7688 else
7689 ev->func(hdev, data, skb);
7690}
7691
7692void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
7693{
7694 struct hci_event_hdr *hdr = (void *) skb->data;
7695 hci_req_complete_t req_complete = NULL;
7696 hci_req_complete_skb_t req_complete_skb = NULL;
7697 struct sk_buff *orig_skb = NULL;
7698 u8 status = 0, event, req_evt = 0;
7699 u16 opcode = HCI_OP_NOP;
7700
7701 if (skb->len < sizeof(*hdr)) {
7702 bt_dev_err(hdev, "Malformed HCI Event");
7703 goto done;
7704 }
7705
7706 kfree_skb(hdev->recv_event);
7707 hdev->recv_event = skb_clone(skb, GFP_KERNEL);
7708
7709 event = hdr->evt;
7710 if (!event) {
7711 bt_dev_warn(hdev, "Received unexpected HCI Event 0x%2.2x",
7712 event);
7713 goto done;
7714 }
7715
7716 /* Only match event if command OGF is not for LE */
7717 if (hdev->sent_cmd &&
7718 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) != 0x08 &&
7719 hci_skb_event(hdev->sent_cmd) == event) {
7720 hci_req_cmd_complete(hdev, hci_skb_opcode(hdev->sent_cmd),
7721 status, &req_complete, &req_complete_skb);
7722 req_evt = event;
7723 }
7724
7725 /* If it looks like we might end up having to call
7726 * req_complete_skb, store a pristine copy of the skb since the
7727 * various handlers may modify the original one through
7728 * skb_pull() calls, etc.
7729 */
7730 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
7731 event == HCI_EV_CMD_COMPLETE)
7732 orig_skb = skb_clone(skb, GFP_KERNEL);
7733
7734 skb_pull(skb, HCI_EVENT_HDR_SIZE);
7735
7736 /* Store wake reason if we're suspended */
7737 hci_store_wake_reason(hdev, event, skb);
7738
7739 bt_dev_dbg(hdev, "event 0x%2.2x", event);
7740
7741 hci_event_func(hdev, event, skb, &opcode, &status, &req_complete,
7742 &req_complete_skb);
7743
7744 if (req_complete) {
7745 req_complete(hdev, status, opcode);
7746 } else if (req_complete_skb) {
7747 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
7748 kfree_skb(orig_skb);
7749 orig_skb = NULL;
7750 }
7751 req_complete_skb(hdev, status, opcode, orig_skb);
7752 }
7753
7754done:
7755 kfree_skb(orig_skb);
7756 kfree_skb(skb);
7757 hdev->stat.evt_rx++;
7758}
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
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 <net/sock.h>
39
40#include <linux/uaccess.h>
41#include <asm/unaligned.h>
42
43#include <net/bluetooth/bluetooth.h>
44#include <net/bluetooth/hci_core.h>
45
46/* Handle HCI Event packets */
47
48static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
49{
50 __u8 status = *((__u8 *) skb->data);
51
52 BT_DBG("%s status 0x%x", hdev->name, status);
53
54 if (status) {
55 hci_dev_lock(hdev);
56 mgmt_stop_discovery_failed(hdev, status);
57 hci_dev_unlock(hdev);
58 return;
59 }
60
61 clear_bit(HCI_INQUIRY, &hdev->flags);
62
63 hci_dev_lock(hdev);
64 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
65 hci_dev_unlock(hdev);
66
67 hci_req_complete(hdev, HCI_OP_INQUIRY_CANCEL, status);
68
69 hci_conn_check_pending(hdev);
70}
71
72static void hci_cc_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
73{
74 __u8 status = *((__u8 *) skb->data);
75
76 BT_DBG("%s status 0x%x", hdev->name, status);
77
78 if (status)
79 return;
80
81 set_bit(HCI_PERIODIC_INQ, &hdev->dev_flags);
82}
83
84static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
85{
86 __u8 status = *((__u8 *) skb->data);
87
88 BT_DBG("%s status 0x%x", hdev->name, status);
89
90 if (status)
91 return;
92
93 clear_bit(HCI_PERIODIC_INQ, &hdev->dev_flags);
94
95 hci_conn_check_pending(hdev);
96}
97
98static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev, struct sk_buff *skb)
99{
100 BT_DBG("%s", hdev->name);
101}
102
103static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
104{
105 struct hci_rp_role_discovery *rp = (void *) skb->data;
106 struct hci_conn *conn;
107
108 BT_DBG("%s status 0x%x", hdev->name, rp->status);
109
110 if (rp->status)
111 return;
112
113 hci_dev_lock(hdev);
114
115 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
116 if (conn) {
117 if (rp->role)
118 conn->link_mode &= ~HCI_LM_MASTER;
119 else
120 conn->link_mode |= HCI_LM_MASTER;
121 }
122
123 hci_dev_unlock(hdev);
124}
125
126static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
127{
128 struct hci_rp_read_link_policy *rp = (void *) skb->data;
129 struct hci_conn *conn;
130
131 BT_DBG("%s status 0x%x", hdev->name, rp->status);
132
133 if (rp->status)
134 return;
135
136 hci_dev_lock(hdev);
137
138 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
139 if (conn)
140 conn->link_policy = __le16_to_cpu(rp->policy);
141
142 hci_dev_unlock(hdev);
143}
144
145static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
146{
147 struct hci_rp_write_link_policy *rp = (void *) skb->data;
148 struct hci_conn *conn;
149 void *sent;
150
151 BT_DBG("%s status 0x%x", hdev->name, rp->status);
152
153 if (rp->status)
154 return;
155
156 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
157 if (!sent)
158 return;
159
160 hci_dev_lock(hdev);
161
162 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
163 if (conn)
164 conn->link_policy = get_unaligned_le16(sent + 2);
165
166 hci_dev_unlock(hdev);
167}
168
169static void hci_cc_read_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
170{
171 struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
172
173 BT_DBG("%s status 0x%x", hdev->name, rp->status);
174
175 if (rp->status)
176 return;
177
178 hdev->link_policy = __le16_to_cpu(rp->policy);
179}
180
181static void hci_cc_write_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
182{
183 __u8 status = *((__u8 *) skb->data);
184 void *sent;
185
186 BT_DBG("%s status 0x%x", hdev->name, status);
187
188 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
189 if (!sent)
190 return;
191
192 if (!status)
193 hdev->link_policy = get_unaligned_le16(sent);
194
195 hci_req_complete(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, status);
196}
197
198static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
199{
200 __u8 status = *((__u8 *) skb->data);
201
202 BT_DBG("%s status 0x%x", hdev->name, status);
203
204 clear_bit(HCI_RESET, &hdev->flags);
205
206 hci_req_complete(hdev, HCI_OP_RESET, status);
207
208 /* Reset all non-persistent flags */
209 hdev->dev_flags &= ~(BIT(HCI_LE_SCAN) | BIT(HCI_PENDING_CLASS) |
210 BIT(HCI_PERIODIC_INQ));
211
212 hdev->discovery.state = DISCOVERY_STOPPED;
213}
214
215static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
216{
217 __u8 status = *((__u8 *) skb->data);
218 void *sent;
219
220 BT_DBG("%s status 0x%x", hdev->name, status);
221
222 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
223 if (!sent)
224 return;
225
226 hci_dev_lock(hdev);
227
228 if (test_bit(HCI_MGMT, &hdev->dev_flags))
229 mgmt_set_local_name_complete(hdev, sent, status);
230 else if (!status)
231 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
232
233 hci_dev_unlock(hdev);
234
235 hci_req_complete(hdev, HCI_OP_WRITE_LOCAL_NAME, status);
236}
237
238static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
239{
240 struct hci_rp_read_local_name *rp = (void *) skb->data;
241
242 BT_DBG("%s status 0x%x", hdev->name, rp->status);
243
244 if (rp->status)
245 return;
246
247 if (test_bit(HCI_SETUP, &hdev->dev_flags))
248 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
249}
250
251static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
252{
253 __u8 status = *((__u8 *) skb->data);
254 void *sent;
255
256 BT_DBG("%s status 0x%x", hdev->name, status);
257
258 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
259 if (!sent)
260 return;
261
262 if (!status) {
263 __u8 param = *((__u8 *) sent);
264
265 if (param == AUTH_ENABLED)
266 set_bit(HCI_AUTH, &hdev->flags);
267 else
268 clear_bit(HCI_AUTH, &hdev->flags);
269 }
270
271 if (test_bit(HCI_MGMT, &hdev->dev_flags))
272 mgmt_auth_enable_complete(hdev, status);
273
274 hci_req_complete(hdev, HCI_OP_WRITE_AUTH_ENABLE, status);
275}
276
277static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
278{
279 __u8 status = *((__u8 *) skb->data);
280 void *sent;
281
282 BT_DBG("%s status 0x%x", hdev->name, status);
283
284 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
285 if (!sent)
286 return;
287
288 if (!status) {
289 __u8 param = *((__u8 *) sent);
290
291 if (param)
292 set_bit(HCI_ENCRYPT, &hdev->flags);
293 else
294 clear_bit(HCI_ENCRYPT, &hdev->flags);
295 }
296
297 hci_req_complete(hdev, HCI_OP_WRITE_ENCRYPT_MODE, status);
298}
299
300static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
301{
302 __u8 param, status = *((__u8 *) skb->data);
303 int old_pscan, old_iscan;
304 void *sent;
305
306 BT_DBG("%s status 0x%x", hdev->name, status);
307
308 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
309 if (!sent)
310 return;
311
312 param = *((__u8 *) sent);
313
314 hci_dev_lock(hdev);
315
316 if (status != 0) {
317 mgmt_write_scan_failed(hdev, param, status);
318 hdev->discov_timeout = 0;
319 goto done;
320 }
321
322 old_pscan = test_and_clear_bit(HCI_PSCAN, &hdev->flags);
323 old_iscan = test_and_clear_bit(HCI_ISCAN, &hdev->flags);
324
325 if (param & SCAN_INQUIRY) {
326 set_bit(HCI_ISCAN, &hdev->flags);
327 if (!old_iscan)
328 mgmt_discoverable(hdev, 1);
329 if (hdev->discov_timeout > 0) {
330 int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
331 queue_delayed_work(hdev->workqueue, &hdev->discov_off,
332 to);
333 }
334 } else if (old_iscan)
335 mgmt_discoverable(hdev, 0);
336
337 if (param & SCAN_PAGE) {
338 set_bit(HCI_PSCAN, &hdev->flags);
339 if (!old_pscan)
340 mgmt_connectable(hdev, 1);
341 } else if (old_pscan)
342 mgmt_connectable(hdev, 0);
343
344done:
345 hci_dev_unlock(hdev);
346 hci_req_complete(hdev, HCI_OP_WRITE_SCAN_ENABLE, status);
347}
348
349static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
350{
351 struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
352
353 BT_DBG("%s status 0x%x", hdev->name, rp->status);
354
355 if (rp->status)
356 return;
357
358 memcpy(hdev->dev_class, rp->dev_class, 3);
359
360 BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
361 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
362}
363
364static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
365{
366 __u8 status = *((__u8 *) skb->data);
367 void *sent;
368
369 BT_DBG("%s status 0x%x", hdev->name, status);
370
371 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
372 if (!sent)
373 return;
374
375 hci_dev_lock(hdev);
376
377 if (status == 0)
378 memcpy(hdev->dev_class, sent, 3);
379
380 if (test_bit(HCI_MGMT, &hdev->dev_flags))
381 mgmt_set_class_of_dev_complete(hdev, sent, status);
382
383 hci_dev_unlock(hdev);
384}
385
386static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
387{
388 struct hci_rp_read_voice_setting *rp = (void *) skb->data;
389 __u16 setting;
390
391 BT_DBG("%s status 0x%x", hdev->name, rp->status);
392
393 if (rp->status)
394 return;
395
396 setting = __le16_to_cpu(rp->voice_setting);
397
398 if (hdev->voice_setting == setting)
399 return;
400
401 hdev->voice_setting = setting;
402
403 BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
404
405 if (hdev->notify)
406 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
407}
408
409static void hci_cc_write_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
410{
411 __u8 status = *((__u8 *) skb->data);
412 __u16 setting;
413 void *sent;
414
415 BT_DBG("%s status 0x%x", hdev->name, status);
416
417 if (status)
418 return;
419
420 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
421 if (!sent)
422 return;
423
424 setting = get_unaligned_le16(sent);
425
426 if (hdev->voice_setting == setting)
427 return;
428
429 hdev->voice_setting = setting;
430
431 BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
432
433 if (hdev->notify)
434 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
435}
436
437static void hci_cc_host_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
438{
439 __u8 status = *((__u8 *) skb->data);
440
441 BT_DBG("%s status 0x%x", hdev->name, status);
442
443 hci_req_complete(hdev, HCI_OP_HOST_BUFFER_SIZE, status);
444}
445
446static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
447{
448 __u8 status = *((__u8 *) skb->data);
449 void *sent;
450
451 BT_DBG("%s status 0x%x", hdev->name, status);
452
453 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
454 if (!sent)
455 return;
456
457 if (test_bit(HCI_MGMT, &hdev->dev_flags))
458 mgmt_ssp_enable_complete(hdev, *((u8 *) sent), status);
459 else if (!status) {
460 if (*((u8 *) sent))
461 set_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
462 else
463 clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
464 }
465}
466
467static u8 hci_get_inquiry_mode(struct hci_dev *hdev)
468{
469 if (hdev->features[6] & LMP_EXT_INQ)
470 return 2;
471
472 if (hdev->features[3] & LMP_RSSI_INQ)
473 return 1;
474
475 if (hdev->manufacturer == 11 && hdev->hci_rev == 0x00 &&
476 hdev->lmp_subver == 0x0757)
477 return 1;
478
479 if (hdev->manufacturer == 15) {
480 if (hdev->hci_rev == 0x03 && hdev->lmp_subver == 0x6963)
481 return 1;
482 if (hdev->hci_rev == 0x09 && hdev->lmp_subver == 0x6963)
483 return 1;
484 if (hdev->hci_rev == 0x00 && hdev->lmp_subver == 0x6965)
485 return 1;
486 }
487
488 if (hdev->manufacturer == 31 && hdev->hci_rev == 0x2005 &&
489 hdev->lmp_subver == 0x1805)
490 return 1;
491
492 return 0;
493}
494
495static void hci_setup_inquiry_mode(struct hci_dev *hdev)
496{
497 u8 mode;
498
499 mode = hci_get_inquiry_mode(hdev);
500
501 hci_send_cmd(hdev, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode);
502}
503
504static void hci_setup_event_mask(struct hci_dev *hdev)
505{
506 /* The second byte is 0xff instead of 0x9f (two reserved bits
507 * disabled) since a Broadcom 1.2 dongle doesn't respond to the
508 * command otherwise */
509 u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 };
510
511 /* CSR 1.1 dongles does not accept any bitfield so don't try to set
512 * any event mask for pre 1.2 devices */
513 if (hdev->hci_ver < BLUETOOTH_VER_1_2)
514 return;
515
516 events[4] |= 0x01; /* Flow Specification Complete */
517 events[4] |= 0x02; /* Inquiry Result with RSSI */
518 events[4] |= 0x04; /* Read Remote Extended Features Complete */
519 events[5] |= 0x08; /* Synchronous Connection Complete */
520 events[5] |= 0x10; /* Synchronous Connection Changed */
521
522 if (hdev->features[3] & LMP_RSSI_INQ)
523 events[4] |= 0x02; /* Inquiry Result with RSSI */
524
525 if (hdev->features[5] & LMP_SNIFF_SUBR)
526 events[5] |= 0x20; /* Sniff Subrating */
527
528 if (hdev->features[5] & LMP_PAUSE_ENC)
529 events[5] |= 0x80; /* Encryption Key Refresh Complete */
530
531 if (hdev->features[6] & LMP_EXT_INQ)
532 events[5] |= 0x40; /* Extended Inquiry Result */
533
534 if (hdev->features[6] & LMP_NO_FLUSH)
535 events[7] |= 0x01; /* Enhanced Flush Complete */
536
537 if (hdev->features[7] & LMP_LSTO)
538 events[6] |= 0x80; /* Link Supervision Timeout Changed */
539
540 if (hdev->features[6] & LMP_SIMPLE_PAIR) {
541 events[6] |= 0x01; /* IO Capability Request */
542 events[6] |= 0x02; /* IO Capability Response */
543 events[6] |= 0x04; /* User Confirmation Request */
544 events[6] |= 0x08; /* User Passkey Request */
545 events[6] |= 0x10; /* Remote OOB Data Request */
546 events[6] |= 0x20; /* Simple Pairing Complete */
547 events[7] |= 0x04; /* User Passkey Notification */
548 events[7] |= 0x08; /* Keypress Notification */
549 events[7] |= 0x10; /* Remote Host Supported
550 * Features Notification */
551 }
552
553 if (hdev->features[4] & LMP_LE)
554 events[7] |= 0x20; /* LE Meta-Event */
555
556 hci_send_cmd(hdev, HCI_OP_SET_EVENT_MASK, sizeof(events), events);
557}
558
559static void hci_setup(struct hci_dev *hdev)
560{
561 if (hdev->dev_type != HCI_BREDR)
562 return;
563
564 hci_setup_event_mask(hdev);
565
566 if (hdev->hci_ver > BLUETOOTH_VER_1_1)
567 hci_send_cmd(hdev, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
568
569 if (hdev->features[6] & LMP_SIMPLE_PAIR) {
570 if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
571 u8 mode = 0x01;
572 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE,
573 sizeof(mode), &mode);
574 } else {
575 struct hci_cp_write_eir cp;
576
577 memset(hdev->eir, 0, sizeof(hdev->eir));
578 memset(&cp, 0, sizeof(cp));
579
580 hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
581 }
582 }
583
584 if (hdev->features[3] & LMP_RSSI_INQ)
585 hci_setup_inquiry_mode(hdev);
586
587 if (hdev->features[7] & LMP_INQ_TX_PWR)
588 hci_send_cmd(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);
589
590 if (hdev->features[7] & LMP_EXTFEATURES) {
591 struct hci_cp_read_local_ext_features cp;
592
593 cp.page = 0x01;
594 hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, sizeof(cp),
595 &cp);
596 }
597
598 if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) {
599 u8 enable = 1;
600 hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(enable),
601 &enable);
602 }
603}
604
605static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
606{
607 struct hci_rp_read_local_version *rp = (void *) skb->data;
608
609 BT_DBG("%s status 0x%x", hdev->name, rp->status);
610
611 if (rp->status)
612 goto done;
613
614 hdev->hci_ver = rp->hci_ver;
615 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
616 hdev->lmp_ver = rp->lmp_ver;
617 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
618 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
619
620 BT_DBG("%s manufacturer %d hci ver %d:%d", hdev->name,
621 hdev->manufacturer,
622 hdev->hci_ver, hdev->hci_rev);
623
624 if (test_bit(HCI_INIT, &hdev->flags))
625 hci_setup(hdev);
626
627done:
628 hci_req_complete(hdev, HCI_OP_READ_LOCAL_VERSION, rp->status);
629}
630
631static void hci_setup_link_policy(struct hci_dev *hdev)
632{
633 struct hci_cp_write_def_link_policy cp;
634 u16 link_policy = 0;
635
636 if (hdev->features[0] & LMP_RSWITCH)
637 link_policy |= HCI_LP_RSWITCH;
638 if (hdev->features[0] & LMP_HOLD)
639 link_policy |= HCI_LP_HOLD;
640 if (hdev->features[0] & LMP_SNIFF)
641 link_policy |= HCI_LP_SNIFF;
642 if (hdev->features[1] & LMP_PARK)
643 link_policy |= HCI_LP_PARK;
644
645 cp.policy = cpu_to_le16(link_policy);
646 hci_send_cmd(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, sizeof(cp), &cp);
647}
648
649static void hci_cc_read_local_commands(struct hci_dev *hdev, struct sk_buff *skb)
650{
651 struct hci_rp_read_local_commands *rp = (void *) skb->data;
652
653 BT_DBG("%s status 0x%x", hdev->name, rp->status);
654
655 if (rp->status)
656 goto done;
657
658 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
659
660 if (test_bit(HCI_INIT, &hdev->flags) && (hdev->commands[5] & 0x10))
661 hci_setup_link_policy(hdev);
662
663done:
664 hci_req_complete(hdev, HCI_OP_READ_LOCAL_COMMANDS, rp->status);
665}
666
667static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb)
668{
669 struct hci_rp_read_local_features *rp = (void *) skb->data;
670
671 BT_DBG("%s status 0x%x", hdev->name, rp->status);
672
673 if (rp->status)
674 return;
675
676 memcpy(hdev->features, rp->features, 8);
677
678 /* Adjust default settings according to features
679 * supported by device. */
680
681 if (hdev->features[0] & LMP_3SLOT)
682 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
683
684 if (hdev->features[0] & LMP_5SLOT)
685 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
686
687 if (hdev->features[1] & LMP_HV2) {
688 hdev->pkt_type |= (HCI_HV2);
689 hdev->esco_type |= (ESCO_HV2);
690 }
691
692 if (hdev->features[1] & LMP_HV3) {
693 hdev->pkt_type |= (HCI_HV3);
694 hdev->esco_type |= (ESCO_HV3);
695 }
696
697 if (hdev->features[3] & LMP_ESCO)
698 hdev->esco_type |= (ESCO_EV3);
699
700 if (hdev->features[4] & LMP_EV4)
701 hdev->esco_type |= (ESCO_EV4);
702
703 if (hdev->features[4] & LMP_EV5)
704 hdev->esco_type |= (ESCO_EV5);
705
706 if (hdev->features[5] & LMP_EDR_ESCO_2M)
707 hdev->esco_type |= (ESCO_2EV3);
708
709 if (hdev->features[5] & LMP_EDR_ESCO_3M)
710 hdev->esco_type |= (ESCO_3EV3);
711
712 if (hdev->features[5] & LMP_EDR_3S_ESCO)
713 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
714
715 BT_DBG("%s features 0x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", hdev->name,
716 hdev->features[0], hdev->features[1],
717 hdev->features[2], hdev->features[3],
718 hdev->features[4], hdev->features[5],
719 hdev->features[6], hdev->features[7]);
720}
721
722static void hci_set_le_support(struct hci_dev *hdev)
723{
724 struct hci_cp_write_le_host_supported cp;
725
726 memset(&cp, 0, sizeof(cp));
727
728 if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
729 cp.le = 1;
730 cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
731 }
732
733 if (cp.le != !!(hdev->host_features[0] & LMP_HOST_LE))
734 hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp),
735 &cp);
736}
737
738static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
739 struct sk_buff *skb)
740{
741 struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
742
743 BT_DBG("%s status 0x%x", hdev->name, rp->status);
744
745 if (rp->status)
746 goto done;
747
748 switch (rp->page) {
749 case 0:
750 memcpy(hdev->features, rp->features, 8);
751 break;
752 case 1:
753 memcpy(hdev->host_features, rp->features, 8);
754 break;
755 }
756
757 if (test_bit(HCI_INIT, &hdev->flags) && hdev->features[4] & LMP_LE)
758 hci_set_le_support(hdev);
759
760done:
761 hci_req_complete(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, rp->status);
762}
763
764static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
765 struct sk_buff *skb)
766{
767 struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
768
769 BT_DBG("%s status 0x%x", hdev->name, rp->status);
770
771 if (rp->status)
772 return;
773
774 hdev->flow_ctl_mode = rp->mode;
775
776 hci_req_complete(hdev, HCI_OP_READ_FLOW_CONTROL_MODE, rp->status);
777}
778
779static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
780{
781 struct hci_rp_read_buffer_size *rp = (void *) skb->data;
782
783 BT_DBG("%s status 0x%x", hdev->name, rp->status);
784
785 if (rp->status)
786 return;
787
788 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
789 hdev->sco_mtu = rp->sco_mtu;
790 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
791 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
792
793 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
794 hdev->sco_mtu = 64;
795 hdev->sco_pkts = 8;
796 }
797
798 hdev->acl_cnt = hdev->acl_pkts;
799 hdev->sco_cnt = hdev->sco_pkts;
800
801 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name,
802 hdev->acl_mtu, hdev->acl_pkts,
803 hdev->sco_mtu, hdev->sco_pkts);
804}
805
806static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
807{
808 struct hci_rp_read_bd_addr *rp = (void *) skb->data;
809
810 BT_DBG("%s status 0x%x", hdev->name, rp->status);
811
812 if (!rp->status)
813 bacpy(&hdev->bdaddr, &rp->bdaddr);
814
815 hci_req_complete(hdev, HCI_OP_READ_BD_ADDR, rp->status);
816}
817
818static void hci_cc_read_data_block_size(struct hci_dev *hdev,
819 struct sk_buff *skb)
820{
821 struct hci_rp_read_data_block_size *rp = (void *) skb->data;
822
823 BT_DBG("%s status 0x%x", hdev->name, rp->status);
824
825 if (rp->status)
826 return;
827
828 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
829 hdev->block_len = __le16_to_cpu(rp->block_len);
830 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
831
832 hdev->block_cnt = hdev->num_blocks;
833
834 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
835 hdev->block_cnt, hdev->block_len);
836
837 hci_req_complete(hdev, HCI_OP_READ_DATA_BLOCK_SIZE, rp->status);
838}
839
840static void hci_cc_write_ca_timeout(struct hci_dev *hdev, struct sk_buff *skb)
841{
842 __u8 status = *((__u8 *) skb->data);
843
844 BT_DBG("%s status 0x%x", hdev->name, status);
845
846 hci_req_complete(hdev, HCI_OP_WRITE_CA_TIMEOUT, status);
847}
848
849static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
850 struct sk_buff *skb)
851{
852 struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
853
854 BT_DBG("%s status 0x%x", hdev->name, rp->status);
855
856 if (rp->status)
857 return;
858
859 hdev->amp_status = rp->amp_status;
860 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
861 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
862 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
863 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
864 hdev->amp_type = rp->amp_type;
865 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
866 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
867 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
868 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
869
870 hci_req_complete(hdev, HCI_OP_READ_LOCAL_AMP_INFO, rp->status);
871}
872
873static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
874 struct sk_buff *skb)
875{
876 __u8 status = *((__u8 *) skb->data);
877
878 BT_DBG("%s status 0x%x", hdev->name, status);
879
880 hci_req_complete(hdev, HCI_OP_DELETE_STORED_LINK_KEY, status);
881}
882
883static void hci_cc_set_event_mask(struct hci_dev *hdev, struct sk_buff *skb)
884{
885 __u8 status = *((__u8 *) skb->data);
886
887 BT_DBG("%s status 0x%x", hdev->name, status);
888
889 hci_req_complete(hdev, HCI_OP_SET_EVENT_MASK, status);
890}
891
892static void hci_cc_write_inquiry_mode(struct hci_dev *hdev,
893 struct sk_buff *skb)
894{
895 __u8 status = *((__u8 *) skb->data);
896
897 BT_DBG("%s status 0x%x", hdev->name, status);
898
899 hci_req_complete(hdev, HCI_OP_WRITE_INQUIRY_MODE, status);
900}
901
902static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
903 struct sk_buff *skb)
904{
905 struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data;
906
907 BT_DBG("%s status 0x%x", hdev->name, rp->status);
908
909 if (!rp->status)
910 hdev->inq_tx_power = rp->tx_power;
911
912 hci_req_complete(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, rp->status);
913}
914
915static void hci_cc_set_event_flt(struct hci_dev *hdev, struct sk_buff *skb)
916{
917 __u8 status = *((__u8 *) skb->data);
918
919 BT_DBG("%s status 0x%x", hdev->name, status);
920
921 hci_req_complete(hdev, HCI_OP_SET_EVENT_FLT, status);
922}
923
924static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
925{
926 struct hci_rp_pin_code_reply *rp = (void *) skb->data;
927 struct hci_cp_pin_code_reply *cp;
928 struct hci_conn *conn;
929
930 BT_DBG("%s status 0x%x", hdev->name, rp->status);
931
932 hci_dev_lock(hdev);
933
934 if (test_bit(HCI_MGMT, &hdev->dev_flags))
935 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
936
937 if (rp->status != 0)
938 goto unlock;
939
940 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
941 if (!cp)
942 goto unlock;
943
944 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
945 if (conn)
946 conn->pin_length = cp->pin_len;
947
948unlock:
949 hci_dev_unlock(hdev);
950}
951
952static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
953{
954 struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
955
956 BT_DBG("%s status 0x%x", hdev->name, rp->status);
957
958 hci_dev_lock(hdev);
959
960 if (test_bit(HCI_MGMT, &hdev->dev_flags))
961 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
962 rp->status);
963
964 hci_dev_unlock(hdev);
965}
966
967static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
968 struct sk_buff *skb)
969{
970 struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
971
972 BT_DBG("%s status 0x%x", hdev->name, rp->status);
973
974 if (rp->status)
975 return;
976
977 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
978 hdev->le_pkts = rp->le_max_pkt;
979
980 hdev->le_cnt = hdev->le_pkts;
981
982 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
983
984 hci_req_complete(hdev, HCI_OP_LE_READ_BUFFER_SIZE, rp->status);
985}
986
987static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
988{
989 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
990
991 BT_DBG("%s status 0x%x", hdev->name, rp->status);
992
993 hci_dev_lock(hdev);
994
995 if (test_bit(HCI_MGMT, &hdev->dev_flags))
996 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
997 rp->status);
998
999 hci_dev_unlock(hdev);
1000}
1001
1002static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
1003 struct sk_buff *skb)
1004{
1005 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
1006
1007 BT_DBG("%s status 0x%x", hdev->name, rp->status);
1008
1009 hci_dev_lock(hdev);
1010
1011 if (test_bit(HCI_MGMT, &hdev->dev_flags))
1012 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1013 ACL_LINK, 0, rp->status);
1014
1015 hci_dev_unlock(hdev);
1016}
1017
1018static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
1019{
1020 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
1021
1022 BT_DBG("%s status 0x%x", hdev->name, rp->status);
1023
1024 hci_dev_lock(hdev);
1025
1026 if (test_bit(HCI_MGMT, &hdev->dev_flags))
1027 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1028 0, rp->status);
1029
1030 hci_dev_unlock(hdev);
1031}
1032
1033static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
1034 struct sk_buff *skb)
1035{
1036 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
1037
1038 BT_DBG("%s status 0x%x", hdev->name, rp->status);
1039
1040 hci_dev_lock(hdev);
1041
1042 if (test_bit(HCI_MGMT, &hdev->dev_flags))
1043 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1044 ACL_LINK, 0, rp->status);
1045
1046 hci_dev_unlock(hdev);
1047}
1048
1049static void hci_cc_read_local_oob_data_reply(struct hci_dev *hdev,
1050 struct sk_buff *skb)
1051{
1052 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
1053
1054 BT_DBG("%s status 0x%x", hdev->name, rp->status);
1055
1056 hci_dev_lock(hdev);
1057 mgmt_read_local_oob_data_reply_complete(hdev, rp->hash,
1058 rp->randomizer, rp->status);
1059 hci_dev_unlock(hdev);
1060}
1061
1062static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
1063{
1064 __u8 status = *((__u8 *) skb->data);
1065
1066 BT_DBG("%s status 0x%x", hdev->name, status);
1067
1068 hci_req_complete(hdev, HCI_OP_LE_SET_SCAN_PARAM, status);
1069
1070 if (status) {
1071 hci_dev_lock(hdev);
1072 mgmt_start_discovery_failed(hdev, status);
1073 hci_dev_unlock(hdev);
1074 return;
1075 }
1076}
1077
1078static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
1079 struct sk_buff *skb)
1080{
1081 struct hci_cp_le_set_scan_enable *cp;
1082 __u8 status = *((__u8 *) skb->data);
1083
1084 BT_DBG("%s status 0x%x", hdev->name, status);
1085
1086 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1087 if (!cp)
1088 return;
1089
1090 switch (cp->enable) {
1091 case LE_SCANNING_ENABLED:
1092 hci_req_complete(hdev, HCI_OP_LE_SET_SCAN_ENABLE, status);
1093
1094 if (status) {
1095 hci_dev_lock(hdev);
1096 mgmt_start_discovery_failed(hdev, status);
1097 hci_dev_unlock(hdev);
1098 return;
1099 }
1100
1101 set_bit(HCI_LE_SCAN, &hdev->dev_flags);
1102
1103 hci_dev_lock(hdev);
1104 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
1105 hci_dev_unlock(hdev);
1106 break;
1107
1108 case LE_SCANNING_DISABLED:
1109 if (status) {
1110 hci_dev_lock(hdev);
1111 mgmt_stop_discovery_failed(hdev, status);
1112 hci_dev_unlock(hdev);
1113 return;
1114 }
1115
1116 clear_bit(HCI_LE_SCAN, &hdev->dev_flags);
1117
1118 if (hdev->discovery.type == DISCOV_TYPE_INTERLEAVED &&
1119 hdev->discovery.state == DISCOVERY_FINDING) {
1120 mgmt_interleaved_discovery(hdev);
1121 } else {
1122 hci_dev_lock(hdev);
1123 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1124 hci_dev_unlock(hdev);
1125 }
1126
1127 break;
1128
1129 default:
1130 BT_ERR("Used reserved LE_Scan_Enable param %d", cp->enable);
1131 break;
1132 }
1133}
1134
1135static void hci_cc_le_ltk_reply(struct hci_dev *hdev, struct sk_buff *skb)
1136{
1137 struct hci_rp_le_ltk_reply *rp = (void *) skb->data;
1138
1139 BT_DBG("%s status 0x%x", hdev->name, rp->status);
1140
1141 if (rp->status)
1142 return;
1143
1144 hci_req_complete(hdev, HCI_OP_LE_LTK_REPLY, rp->status);
1145}
1146
1147static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
1148{
1149 struct hci_rp_le_ltk_neg_reply *rp = (void *) skb->data;
1150
1151 BT_DBG("%s status 0x%x", hdev->name, rp->status);
1152
1153 if (rp->status)
1154 return;
1155
1156 hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
1157}
1158
1159static inline void hci_cc_write_le_host_supported(struct hci_dev *hdev,
1160 struct sk_buff *skb)
1161{
1162 struct hci_cp_write_le_host_supported *sent;
1163 __u8 status = *((__u8 *) skb->data);
1164
1165 BT_DBG("%s status 0x%x", hdev->name, status);
1166
1167 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
1168 if (!sent)
1169 return;
1170
1171 if (!status) {
1172 if (sent->le)
1173 hdev->host_features[0] |= LMP_HOST_LE;
1174 else
1175 hdev->host_features[0] &= ~LMP_HOST_LE;
1176 }
1177
1178 if (test_bit(HCI_MGMT, &hdev->dev_flags) &&
1179 !test_bit(HCI_INIT, &hdev->flags))
1180 mgmt_le_enable_complete(hdev, sent->le, status);
1181
1182 hci_req_complete(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, status);
1183}
1184
1185static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
1186{
1187 BT_DBG("%s status 0x%x", hdev->name, status);
1188
1189 if (status) {
1190 hci_req_complete(hdev, HCI_OP_INQUIRY, status);
1191 hci_conn_check_pending(hdev);
1192 hci_dev_lock(hdev);
1193 if (test_bit(HCI_MGMT, &hdev->dev_flags))
1194 mgmt_start_discovery_failed(hdev, status);
1195 hci_dev_unlock(hdev);
1196 return;
1197 }
1198
1199 set_bit(HCI_INQUIRY, &hdev->flags);
1200
1201 hci_dev_lock(hdev);
1202 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
1203 hci_dev_unlock(hdev);
1204}
1205
1206static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
1207{
1208 struct hci_cp_create_conn *cp;
1209 struct hci_conn *conn;
1210
1211 BT_DBG("%s status 0x%x", hdev->name, status);
1212
1213 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
1214 if (!cp)
1215 return;
1216
1217 hci_dev_lock(hdev);
1218
1219 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1220
1221 BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->bdaddr), conn);
1222
1223 if (status) {
1224 if (conn && conn->state == BT_CONNECT) {
1225 if (status != 0x0c || conn->attempt > 2) {
1226 conn->state = BT_CLOSED;
1227 hci_proto_connect_cfm(conn, status);
1228 hci_conn_del(conn);
1229 } else
1230 conn->state = BT_CONNECT2;
1231 }
1232 } else {
1233 if (!conn) {
1234 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
1235 if (conn) {
1236 conn->out = true;
1237 conn->link_mode |= HCI_LM_MASTER;
1238 } else
1239 BT_ERR("No memory for new connection");
1240 }
1241 }
1242
1243 hci_dev_unlock(hdev);
1244}
1245
1246static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1247{
1248 struct hci_cp_add_sco *cp;
1249 struct hci_conn *acl, *sco;
1250 __u16 handle;
1251
1252 BT_DBG("%s status 0x%x", hdev->name, status);
1253
1254 if (!status)
1255 return;
1256
1257 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
1258 if (!cp)
1259 return;
1260
1261 handle = __le16_to_cpu(cp->handle);
1262
1263 BT_DBG("%s handle %d", hdev->name, handle);
1264
1265 hci_dev_lock(hdev);
1266
1267 acl = hci_conn_hash_lookup_handle(hdev, handle);
1268 if (acl) {
1269 sco = acl->link;
1270 if (sco) {
1271 sco->state = BT_CLOSED;
1272
1273 hci_proto_connect_cfm(sco, status);
1274 hci_conn_del(sco);
1275 }
1276 }
1277
1278 hci_dev_unlock(hdev);
1279}
1280
1281static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
1282{
1283 struct hci_cp_auth_requested *cp;
1284 struct hci_conn *conn;
1285
1286 BT_DBG("%s status 0x%x", hdev->name, status);
1287
1288 if (!status)
1289 return;
1290
1291 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
1292 if (!cp)
1293 return;
1294
1295 hci_dev_lock(hdev);
1296
1297 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1298 if (conn) {
1299 if (conn->state == BT_CONFIG) {
1300 hci_proto_connect_cfm(conn, status);
1301 hci_conn_put(conn);
1302 }
1303 }
1304
1305 hci_dev_unlock(hdev);
1306}
1307
1308static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
1309{
1310 struct hci_cp_set_conn_encrypt *cp;
1311 struct hci_conn *conn;
1312
1313 BT_DBG("%s status 0x%x", hdev->name, status);
1314
1315 if (!status)
1316 return;
1317
1318 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
1319 if (!cp)
1320 return;
1321
1322 hci_dev_lock(hdev);
1323
1324 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1325 if (conn) {
1326 if (conn->state == BT_CONFIG) {
1327 hci_proto_connect_cfm(conn, status);
1328 hci_conn_put(conn);
1329 }
1330 }
1331
1332 hci_dev_unlock(hdev);
1333}
1334
1335static int hci_outgoing_auth_needed(struct hci_dev *hdev,
1336 struct hci_conn *conn)
1337{
1338 if (conn->state != BT_CONFIG || !conn->out)
1339 return 0;
1340
1341 if (conn->pending_sec_level == BT_SECURITY_SDP)
1342 return 0;
1343
1344 /* Only request authentication for SSP connections or non-SSP
1345 * devices with sec_level HIGH or if MITM protection is requested */
1346 if (!hci_conn_ssp_enabled(conn) &&
1347 conn->pending_sec_level != BT_SECURITY_HIGH &&
1348 !(conn->auth_type & 0x01))
1349 return 0;
1350
1351 return 1;
1352}
1353
1354static inline int hci_resolve_name(struct hci_dev *hdev,
1355 struct inquiry_entry *e)
1356{
1357 struct hci_cp_remote_name_req cp;
1358
1359 memset(&cp, 0, sizeof(cp));
1360
1361 bacpy(&cp.bdaddr, &e->data.bdaddr);
1362 cp.pscan_rep_mode = e->data.pscan_rep_mode;
1363 cp.pscan_mode = e->data.pscan_mode;
1364 cp.clock_offset = e->data.clock_offset;
1365
1366 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
1367}
1368
1369static bool hci_resolve_next_name(struct hci_dev *hdev)
1370{
1371 struct discovery_state *discov = &hdev->discovery;
1372 struct inquiry_entry *e;
1373
1374 if (list_empty(&discov->resolve))
1375 return false;
1376
1377 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
1378 if (!e)
1379 return false;
1380
1381 if (hci_resolve_name(hdev, e) == 0) {
1382 e->name_state = NAME_PENDING;
1383 return true;
1384 }
1385
1386 return false;
1387}
1388
1389static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
1390 bdaddr_t *bdaddr, u8 *name, u8 name_len)
1391{
1392 struct discovery_state *discov = &hdev->discovery;
1393 struct inquiry_entry *e;
1394
1395 if (conn && !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
1396 mgmt_device_connected(hdev, bdaddr, ACL_LINK, 0x00, 0, name,
1397 name_len, conn->dev_class);
1398
1399 if (discov->state == DISCOVERY_STOPPED)
1400 return;
1401
1402 if (discov->state == DISCOVERY_STOPPING)
1403 goto discov_complete;
1404
1405 if (discov->state != DISCOVERY_RESOLVING)
1406 return;
1407
1408 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
1409 /* If the device was not found in a list of found devices names of which
1410 * are pending. there is no need to continue resolving a next name as it
1411 * will be done upon receiving another Remote Name Request Complete
1412 * Event */
1413 if (!e)
1414 return;
1415
1416 list_del(&e->list);
1417 if (name) {
1418 e->name_state = NAME_KNOWN;
1419 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
1420 e->data.rssi, name, name_len);
1421 } else {
1422 e->name_state = NAME_NOT_KNOWN;
1423 }
1424
1425 if (hci_resolve_next_name(hdev))
1426 return;
1427
1428discov_complete:
1429 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1430}
1431
1432static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
1433{
1434 struct hci_cp_remote_name_req *cp;
1435 struct hci_conn *conn;
1436
1437 BT_DBG("%s status 0x%x", hdev->name, status);
1438
1439 /* If successful wait for the name req complete event before
1440 * checking for the need to do authentication */
1441 if (!status)
1442 return;
1443
1444 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
1445 if (!cp)
1446 return;
1447
1448 hci_dev_lock(hdev);
1449
1450 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1451
1452 if (test_bit(HCI_MGMT, &hdev->dev_flags))
1453 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
1454
1455 if (!conn)
1456 goto unlock;
1457
1458 if (!hci_outgoing_auth_needed(hdev, conn))
1459 goto unlock;
1460
1461 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
1462 struct hci_cp_auth_requested cp;
1463 cp.handle = __cpu_to_le16(conn->handle);
1464 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
1465 }
1466
1467unlock:
1468 hci_dev_unlock(hdev);
1469}
1470
1471static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
1472{
1473 struct hci_cp_read_remote_features *cp;
1474 struct hci_conn *conn;
1475
1476 BT_DBG("%s status 0x%x", hdev->name, status);
1477
1478 if (!status)
1479 return;
1480
1481 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
1482 if (!cp)
1483 return;
1484
1485 hci_dev_lock(hdev);
1486
1487 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1488 if (conn) {
1489 if (conn->state == BT_CONFIG) {
1490 hci_proto_connect_cfm(conn, status);
1491 hci_conn_put(conn);
1492 }
1493 }
1494
1495 hci_dev_unlock(hdev);
1496}
1497
1498static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
1499{
1500 struct hci_cp_read_remote_ext_features *cp;
1501 struct hci_conn *conn;
1502
1503 BT_DBG("%s status 0x%x", hdev->name, status);
1504
1505 if (!status)
1506 return;
1507
1508 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
1509 if (!cp)
1510 return;
1511
1512 hci_dev_lock(hdev);
1513
1514 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1515 if (conn) {
1516 if (conn->state == BT_CONFIG) {
1517 hci_proto_connect_cfm(conn, status);
1518 hci_conn_put(conn);
1519 }
1520 }
1521
1522 hci_dev_unlock(hdev);
1523}
1524
1525static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
1526{
1527 struct hci_cp_setup_sync_conn *cp;
1528 struct hci_conn *acl, *sco;
1529 __u16 handle;
1530
1531 BT_DBG("%s status 0x%x", hdev->name, status);
1532
1533 if (!status)
1534 return;
1535
1536 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
1537 if (!cp)
1538 return;
1539
1540 handle = __le16_to_cpu(cp->handle);
1541
1542 BT_DBG("%s handle %d", hdev->name, handle);
1543
1544 hci_dev_lock(hdev);
1545
1546 acl = hci_conn_hash_lookup_handle(hdev, handle);
1547 if (acl) {
1548 sco = acl->link;
1549 if (sco) {
1550 sco->state = BT_CLOSED;
1551
1552 hci_proto_connect_cfm(sco, status);
1553 hci_conn_del(sco);
1554 }
1555 }
1556
1557 hci_dev_unlock(hdev);
1558}
1559
1560static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
1561{
1562 struct hci_cp_sniff_mode *cp;
1563 struct hci_conn *conn;
1564
1565 BT_DBG("%s status 0x%x", hdev->name, status);
1566
1567 if (!status)
1568 return;
1569
1570 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
1571 if (!cp)
1572 return;
1573
1574 hci_dev_lock(hdev);
1575
1576 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1577 if (conn) {
1578 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1579
1580 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
1581 hci_sco_setup(conn, status);
1582 }
1583
1584 hci_dev_unlock(hdev);
1585}
1586
1587static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
1588{
1589 struct hci_cp_exit_sniff_mode *cp;
1590 struct hci_conn *conn;
1591
1592 BT_DBG("%s status 0x%x", hdev->name, status);
1593
1594 if (!status)
1595 return;
1596
1597 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
1598 if (!cp)
1599 return;
1600
1601 hci_dev_lock(hdev);
1602
1603 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1604 if (conn) {
1605 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1606
1607 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
1608 hci_sco_setup(conn, status);
1609 }
1610
1611 hci_dev_unlock(hdev);
1612}
1613
1614static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
1615{
1616 struct hci_cp_disconnect *cp;
1617 struct hci_conn *conn;
1618
1619 if (!status)
1620 return;
1621
1622 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
1623 if (!cp)
1624 return;
1625
1626 hci_dev_lock(hdev);
1627
1628 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1629 if (conn)
1630 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
1631 conn->dst_type, status);
1632
1633 hci_dev_unlock(hdev);
1634}
1635
1636static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
1637{
1638 struct hci_cp_le_create_conn *cp;
1639 struct hci_conn *conn;
1640
1641 BT_DBG("%s status 0x%x", hdev->name, status);
1642
1643 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
1644 if (!cp)
1645 return;
1646
1647 hci_dev_lock(hdev);
1648
1649 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr);
1650
1651 BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->peer_addr),
1652 conn);
1653
1654 if (status) {
1655 if (conn && conn->state == BT_CONNECT) {
1656 conn->state = BT_CLOSED;
1657 mgmt_connect_failed(hdev, &cp->peer_addr, conn->type,
1658 conn->dst_type, status);
1659 hci_proto_connect_cfm(conn, status);
1660 hci_conn_del(conn);
1661 }
1662 } else {
1663 if (!conn) {
1664 conn = hci_conn_add(hdev, LE_LINK, &cp->peer_addr);
1665 if (conn) {
1666 conn->dst_type = cp->peer_addr_type;
1667 conn->out = true;
1668 } else {
1669 BT_ERR("No memory for new connection");
1670 }
1671 }
1672 }
1673
1674 hci_dev_unlock(hdev);
1675}
1676
1677static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
1678{
1679 BT_DBG("%s status 0x%x", hdev->name, status);
1680}
1681
1682static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1683{
1684 __u8 status = *((__u8 *) skb->data);
1685 struct discovery_state *discov = &hdev->discovery;
1686 struct inquiry_entry *e;
1687
1688 BT_DBG("%s status %d", hdev->name, status);
1689
1690 hci_req_complete(hdev, HCI_OP_INQUIRY, status);
1691
1692 hci_conn_check_pending(hdev);
1693
1694 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
1695 return;
1696
1697 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
1698 return;
1699
1700 hci_dev_lock(hdev);
1701
1702 if (discov->state != DISCOVERY_FINDING)
1703 goto unlock;
1704
1705 if (list_empty(&discov->resolve)) {
1706 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1707 goto unlock;
1708 }
1709
1710 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
1711 if (e && hci_resolve_name(hdev, e) == 0) {
1712 e->name_state = NAME_PENDING;
1713 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
1714 } else {
1715 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1716 }
1717
1718unlock:
1719 hci_dev_unlock(hdev);
1720}
1721
1722static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
1723{
1724 struct inquiry_data data;
1725 struct inquiry_info *info = (void *) (skb->data + 1);
1726 int num_rsp = *((__u8 *) skb->data);
1727
1728 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1729
1730 if (!num_rsp)
1731 return;
1732
1733 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
1734 return;
1735
1736 hci_dev_lock(hdev);
1737
1738 for (; num_rsp; num_rsp--, info++) {
1739 bool name_known, ssp;
1740
1741 bacpy(&data.bdaddr, &info->bdaddr);
1742 data.pscan_rep_mode = info->pscan_rep_mode;
1743 data.pscan_period_mode = info->pscan_period_mode;
1744 data.pscan_mode = info->pscan_mode;
1745 memcpy(data.dev_class, info->dev_class, 3);
1746 data.clock_offset = info->clock_offset;
1747 data.rssi = 0x00;
1748 data.ssp_mode = 0x00;
1749
1750 name_known = hci_inquiry_cache_update(hdev, &data, false, &ssp);
1751 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
1752 info->dev_class, 0, !name_known, ssp, NULL,
1753 0);
1754 }
1755
1756 hci_dev_unlock(hdev);
1757}
1758
1759static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1760{
1761 struct hci_ev_conn_complete *ev = (void *) skb->data;
1762 struct hci_conn *conn;
1763
1764 BT_DBG("%s", hdev->name);
1765
1766 hci_dev_lock(hdev);
1767
1768 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
1769 if (!conn) {
1770 if (ev->link_type != SCO_LINK)
1771 goto unlock;
1772
1773 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
1774 if (!conn)
1775 goto unlock;
1776
1777 conn->type = SCO_LINK;
1778 }
1779
1780 if (!ev->status) {
1781 conn->handle = __le16_to_cpu(ev->handle);
1782
1783 if (conn->type == ACL_LINK) {
1784 conn->state = BT_CONFIG;
1785 hci_conn_hold(conn);
1786
1787 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
1788 !hci_find_link_key(hdev, &ev->bdaddr))
1789 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
1790 else
1791 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
1792 } else
1793 conn->state = BT_CONNECTED;
1794
1795 hci_conn_hold_device(conn);
1796 hci_conn_add_sysfs(conn);
1797
1798 if (test_bit(HCI_AUTH, &hdev->flags))
1799 conn->link_mode |= HCI_LM_AUTH;
1800
1801 if (test_bit(HCI_ENCRYPT, &hdev->flags))
1802 conn->link_mode |= HCI_LM_ENCRYPT;
1803
1804 /* Get remote features */
1805 if (conn->type == ACL_LINK) {
1806 struct hci_cp_read_remote_features cp;
1807 cp.handle = ev->handle;
1808 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
1809 sizeof(cp), &cp);
1810 }
1811
1812 /* Set packet type for incoming connection */
1813 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
1814 struct hci_cp_change_conn_ptype cp;
1815 cp.handle = ev->handle;
1816 cp.pkt_type = cpu_to_le16(conn->pkt_type);
1817 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
1818 &cp);
1819 }
1820 } else {
1821 conn->state = BT_CLOSED;
1822 if (conn->type == ACL_LINK)
1823 mgmt_connect_failed(hdev, &ev->bdaddr, conn->type,
1824 conn->dst_type, ev->status);
1825 }
1826
1827 if (conn->type == ACL_LINK)
1828 hci_sco_setup(conn, ev->status);
1829
1830 if (ev->status) {
1831 hci_proto_connect_cfm(conn, ev->status);
1832 hci_conn_del(conn);
1833 } else if (ev->link_type != ACL_LINK)
1834 hci_proto_connect_cfm(conn, ev->status);
1835
1836unlock:
1837 hci_dev_unlock(hdev);
1838
1839 hci_conn_check_pending(hdev);
1840}
1841
1842static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1843{
1844 struct hci_ev_conn_request *ev = (void *) skb->data;
1845 int mask = hdev->link_mode;
1846
1847 BT_DBG("%s bdaddr %s type 0x%x", hdev->name,
1848 batostr(&ev->bdaddr), ev->link_type);
1849
1850 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
1851
1852 if ((mask & HCI_LM_ACCEPT) &&
1853 !hci_blacklist_lookup(hdev, &ev->bdaddr)) {
1854 /* Connection accepted */
1855 struct inquiry_entry *ie;
1856 struct hci_conn *conn;
1857
1858 hci_dev_lock(hdev);
1859
1860 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
1861 if (ie)
1862 memcpy(ie->data.dev_class, ev->dev_class, 3);
1863
1864 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
1865 if (!conn) {
1866 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr);
1867 if (!conn) {
1868 BT_ERR("No memory for new connection");
1869 hci_dev_unlock(hdev);
1870 return;
1871 }
1872 }
1873
1874 memcpy(conn->dev_class, ev->dev_class, 3);
1875 conn->state = BT_CONNECT;
1876
1877 hci_dev_unlock(hdev);
1878
1879 if (ev->link_type == ACL_LINK || !lmp_esco_capable(hdev)) {
1880 struct hci_cp_accept_conn_req cp;
1881
1882 bacpy(&cp.bdaddr, &ev->bdaddr);
1883
1884 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
1885 cp.role = 0x00; /* Become master */
1886 else
1887 cp.role = 0x01; /* Remain slave */
1888
1889 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp),
1890 &cp);
1891 } else {
1892 struct hci_cp_accept_sync_conn_req cp;
1893
1894 bacpy(&cp.bdaddr, &ev->bdaddr);
1895 cp.pkt_type = cpu_to_le16(conn->pkt_type);
1896
1897 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
1898 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
1899 cp.max_latency = cpu_to_le16(0xffff);
1900 cp.content_format = cpu_to_le16(hdev->voice_setting);
1901 cp.retrans_effort = 0xff;
1902
1903 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
1904 sizeof(cp), &cp);
1905 }
1906 } else {
1907 /* Connection rejected */
1908 struct hci_cp_reject_conn_req cp;
1909
1910 bacpy(&cp.bdaddr, &ev->bdaddr);
1911 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
1912 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
1913 }
1914}
1915
1916static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1917{
1918 struct hci_ev_disconn_complete *ev = (void *) skb->data;
1919 struct hci_conn *conn;
1920
1921 BT_DBG("%s status %d", hdev->name, ev->status);
1922
1923 hci_dev_lock(hdev);
1924
1925 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1926 if (!conn)
1927 goto unlock;
1928
1929 if (ev->status == 0)
1930 conn->state = BT_CLOSED;
1931
1932 if (test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags) &&
1933 (conn->type == ACL_LINK || conn->type == LE_LINK)) {
1934 if (ev->status != 0)
1935 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
1936 conn->dst_type, ev->status);
1937 else
1938 mgmt_device_disconnected(hdev, &conn->dst, conn->type,
1939 conn->dst_type);
1940 }
1941
1942 if (ev->status == 0) {
1943 if (conn->type == ACL_LINK && conn->flush_key)
1944 hci_remove_link_key(hdev, &conn->dst);
1945 hci_proto_disconn_cfm(conn, ev->reason);
1946 hci_conn_del(conn);
1947 }
1948
1949unlock:
1950 hci_dev_unlock(hdev);
1951}
1952
1953static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1954{
1955 struct hci_ev_auth_complete *ev = (void *) skb->data;
1956 struct hci_conn *conn;
1957
1958 BT_DBG("%s status %d", hdev->name, ev->status);
1959
1960 hci_dev_lock(hdev);
1961
1962 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1963 if (!conn)
1964 goto unlock;
1965
1966 if (!ev->status) {
1967 if (!hci_conn_ssp_enabled(conn) &&
1968 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
1969 BT_INFO("re-auth of legacy device is not possible.");
1970 } else {
1971 conn->link_mode |= HCI_LM_AUTH;
1972 conn->sec_level = conn->pending_sec_level;
1973 }
1974 } else {
1975 mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type,
1976 ev->status);
1977 }
1978
1979 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
1980 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
1981
1982 if (conn->state == BT_CONFIG) {
1983 if (!ev->status && hci_conn_ssp_enabled(conn)) {
1984 struct hci_cp_set_conn_encrypt cp;
1985 cp.handle = ev->handle;
1986 cp.encrypt = 0x01;
1987 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
1988 &cp);
1989 } else {
1990 conn->state = BT_CONNECTED;
1991 hci_proto_connect_cfm(conn, ev->status);
1992 hci_conn_put(conn);
1993 }
1994 } else {
1995 hci_auth_cfm(conn, ev->status);
1996
1997 hci_conn_hold(conn);
1998 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
1999 hci_conn_put(conn);
2000 }
2001
2002 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
2003 if (!ev->status) {
2004 struct hci_cp_set_conn_encrypt cp;
2005 cp.handle = ev->handle;
2006 cp.encrypt = 0x01;
2007 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2008 &cp);
2009 } else {
2010 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2011 hci_encrypt_cfm(conn, ev->status, 0x00);
2012 }
2013 }
2014
2015unlock:
2016 hci_dev_unlock(hdev);
2017}
2018
2019static inline void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
2020{
2021 struct hci_ev_remote_name *ev = (void *) skb->data;
2022 struct hci_conn *conn;
2023
2024 BT_DBG("%s", hdev->name);
2025
2026 hci_conn_check_pending(hdev);
2027
2028 hci_dev_lock(hdev);
2029
2030 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2031
2032 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
2033 goto check_auth;
2034
2035 if (ev->status == 0)
2036 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
2037 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
2038 else
2039 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
2040
2041check_auth:
2042 if (!conn)
2043 goto unlock;
2044
2045 if (!hci_outgoing_auth_needed(hdev, conn))
2046 goto unlock;
2047
2048 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2049 struct hci_cp_auth_requested cp;
2050 cp.handle = __cpu_to_le16(conn->handle);
2051 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
2052 }
2053
2054unlock:
2055 hci_dev_unlock(hdev);
2056}
2057
2058static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2059{
2060 struct hci_ev_encrypt_change *ev = (void *) skb->data;
2061 struct hci_conn *conn;
2062
2063 BT_DBG("%s status %d", hdev->name, ev->status);
2064
2065 hci_dev_lock(hdev);
2066
2067 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2068 if (conn) {
2069 if (!ev->status) {
2070 if (ev->encrypt) {
2071 /* Encryption implies authentication */
2072 conn->link_mode |= HCI_LM_AUTH;
2073 conn->link_mode |= HCI_LM_ENCRYPT;
2074 conn->sec_level = conn->pending_sec_level;
2075 } else
2076 conn->link_mode &= ~HCI_LM_ENCRYPT;
2077 }
2078
2079 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2080
2081 if (ev->status && conn->state == BT_CONNECTED) {
2082 hci_acl_disconn(conn, HCI_ERROR_AUTH_FAILURE);
2083 hci_conn_put(conn);
2084 goto unlock;
2085 }
2086
2087 if (conn->state == BT_CONFIG) {
2088 if (!ev->status)
2089 conn->state = BT_CONNECTED;
2090
2091 hci_proto_connect_cfm(conn, ev->status);
2092 hci_conn_put(conn);
2093 } else
2094 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
2095 }
2096
2097unlock:
2098 hci_dev_unlock(hdev);
2099}
2100
2101static inline void hci_change_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2102{
2103 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
2104 struct hci_conn *conn;
2105
2106 BT_DBG("%s status %d", hdev->name, ev->status);
2107
2108 hci_dev_lock(hdev);
2109
2110 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2111 if (conn) {
2112 if (!ev->status)
2113 conn->link_mode |= HCI_LM_SECURE;
2114
2115 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2116
2117 hci_key_change_cfm(conn, ev->status);
2118 }
2119
2120 hci_dev_unlock(hdev);
2121}
2122
2123static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
2124{
2125 struct hci_ev_remote_features *ev = (void *) skb->data;
2126 struct hci_conn *conn;
2127
2128 BT_DBG("%s status %d", hdev->name, ev->status);
2129
2130 hci_dev_lock(hdev);
2131
2132 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2133 if (!conn)
2134 goto unlock;
2135
2136 if (!ev->status)
2137 memcpy(conn->features, ev->features, 8);
2138
2139 if (conn->state != BT_CONFIG)
2140 goto unlock;
2141
2142 if (!ev->status && lmp_ssp_capable(hdev) && lmp_ssp_capable(conn)) {
2143 struct hci_cp_read_remote_ext_features cp;
2144 cp.handle = ev->handle;
2145 cp.page = 0x01;
2146 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
2147 sizeof(cp), &cp);
2148 goto unlock;
2149 }
2150
2151 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
2152 struct hci_cp_remote_name_req cp;
2153 memset(&cp, 0, sizeof(cp));
2154 bacpy(&cp.bdaddr, &conn->dst);
2155 cp.pscan_rep_mode = 0x02;
2156 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2157 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2158 mgmt_device_connected(hdev, &conn->dst, conn->type,
2159 conn->dst_type, 0, NULL, 0,
2160 conn->dev_class);
2161
2162 if (!hci_outgoing_auth_needed(hdev, conn)) {
2163 conn->state = BT_CONNECTED;
2164 hci_proto_connect_cfm(conn, ev->status);
2165 hci_conn_put(conn);
2166 }
2167
2168unlock:
2169 hci_dev_unlock(hdev);
2170}
2171
2172static inline void hci_remote_version_evt(struct hci_dev *hdev, struct sk_buff *skb)
2173{
2174 BT_DBG("%s", hdev->name);
2175}
2176
2177static inline void hci_qos_setup_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2178{
2179 BT_DBG("%s", hdev->name);
2180}
2181
2182static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2183{
2184 struct hci_ev_cmd_complete *ev = (void *) skb->data;
2185 __u16 opcode;
2186
2187 skb_pull(skb, sizeof(*ev));
2188
2189 opcode = __le16_to_cpu(ev->opcode);
2190
2191 switch (opcode) {
2192 case HCI_OP_INQUIRY_CANCEL:
2193 hci_cc_inquiry_cancel(hdev, skb);
2194 break;
2195
2196 case HCI_OP_PERIODIC_INQ:
2197 hci_cc_periodic_inq(hdev, skb);
2198 break;
2199
2200 case HCI_OP_EXIT_PERIODIC_INQ:
2201 hci_cc_exit_periodic_inq(hdev, skb);
2202 break;
2203
2204 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
2205 hci_cc_remote_name_req_cancel(hdev, skb);
2206 break;
2207
2208 case HCI_OP_ROLE_DISCOVERY:
2209 hci_cc_role_discovery(hdev, skb);
2210 break;
2211
2212 case HCI_OP_READ_LINK_POLICY:
2213 hci_cc_read_link_policy(hdev, skb);
2214 break;
2215
2216 case HCI_OP_WRITE_LINK_POLICY:
2217 hci_cc_write_link_policy(hdev, skb);
2218 break;
2219
2220 case HCI_OP_READ_DEF_LINK_POLICY:
2221 hci_cc_read_def_link_policy(hdev, skb);
2222 break;
2223
2224 case HCI_OP_WRITE_DEF_LINK_POLICY:
2225 hci_cc_write_def_link_policy(hdev, skb);
2226 break;
2227
2228 case HCI_OP_RESET:
2229 hci_cc_reset(hdev, skb);
2230 break;
2231
2232 case HCI_OP_WRITE_LOCAL_NAME:
2233 hci_cc_write_local_name(hdev, skb);
2234 break;
2235
2236 case HCI_OP_READ_LOCAL_NAME:
2237 hci_cc_read_local_name(hdev, skb);
2238 break;
2239
2240 case HCI_OP_WRITE_AUTH_ENABLE:
2241 hci_cc_write_auth_enable(hdev, skb);
2242 break;
2243
2244 case HCI_OP_WRITE_ENCRYPT_MODE:
2245 hci_cc_write_encrypt_mode(hdev, skb);
2246 break;
2247
2248 case HCI_OP_WRITE_SCAN_ENABLE:
2249 hci_cc_write_scan_enable(hdev, skb);
2250 break;
2251
2252 case HCI_OP_READ_CLASS_OF_DEV:
2253 hci_cc_read_class_of_dev(hdev, skb);
2254 break;
2255
2256 case HCI_OP_WRITE_CLASS_OF_DEV:
2257 hci_cc_write_class_of_dev(hdev, skb);
2258 break;
2259
2260 case HCI_OP_READ_VOICE_SETTING:
2261 hci_cc_read_voice_setting(hdev, skb);
2262 break;
2263
2264 case HCI_OP_WRITE_VOICE_SETTING:
2265 hci_cc_write_voice_setting(hdev, skb);
2266 break;
2267
2268 case HCI_OP_HOST_BUFFER_SIZE:
2269 hci_cc_host_buffer_size(hdev, skb);
2270 break;
2271
2272 case HCI_OP_WRITE_SSP_MODE:
2273 hci_cc_write_ssp_mode(hdev, skb);
2274 break;
2275
2276 case HCI_OP_READ_LOCAL_VERSION:
2277 hci_cc_read_local_version(hdev, skb);
2278 break;
2279
2280 case HCI_OP_READ_LOCAL_COMMANDS:
2281 hci_cc_read_local_commands(hdev, skb);
2282 break;
2283
2284 case HCI_OP_READ_LOCAL_FEATURES:
2285 hci_cc_read_local_features(hdev, skb);
2286 break;
2287
2288 case HCI_OP_READ_LOCAL_EXT_FEATURES:
2289 hci_cc_read_local_ext_features(hdev, skb);
2290 break;
2291
2292 case HCI_OP_READ_BUFFER_SIZE:
2293 hci_cc_read_buffer_size(hdev, skb);
2294 break;
2295
2296 case HCI_OP_READ_BD_ADDR:
2297 hci_cc_read_bd_addr(hdev, skb);
2298 break;
2299
2300 case HCI_OP_READ_DATA_BLOCK_SIZE:
2301 hci_cc_read_data_block_size(hdev, skb);
2302 break;
2303
2304 case HCI_OP_WRITE_CA_TIMEOUT:
2305 hci_cc_write_ca_timeout(hdev, skb);
2306 break;
2307
2308 case HCI_OP_READ_FLOW_CONTROL_MODE:
2309 hci_cc_read_flow_control_mode(hdev, skb);
2310 break;
2311
2312 case HCI_OP_READ_LOCAL_AMP_INFO:
2313 hci_cc_read_local_amp_info(hdev, skb);
2314 break;
2315
2316 case HCI_OP_DELETE_STORED_LINK_KEY:
2317 hci_cc_delete_stored_link_key(hdev, skb);
2318 break;
2319
2320 case HCI_OP_SET_EVENT_MASK:
2321 hci_cc_set_event_mask(hdev, skb);
2322 break;
2323
2324 case HCI_OP_WRITE_INQUIRY_MODE:
2325 hci_cc_write_inquiry_mode(hdev, skb);
2326 break;
2327
2328 case HCI_OP_READ_INQ_RSP_TX_POWER:
2329 hci_cc_read_inq_rsp_tx_power(hdev, skb);
2330 break;
2331
2332 case HCI_OP_SET_EVENT_FLT:
2333 hci_cc_set_event_flt(hdev, skb);
2334 break;
2335
2336 case HCI_OP_PIN_CODE_REPLY:
2337 hci_cc_pin_code_reply(hdev, skb);
2338 break;
2339
2340 case HCI_OP_PIN_CODE_NEG_REPLY:
2341 hci_cc_pin_code_neg_reply(hdev, skb);
2342 break;
2343
2344 case HCI_OP_READ_LOCAL_OOB_DATA:
2345 hci_cc_read_local_oob_data_reply(hdev, skb);
2346 break;
2347
2348 case HCI_OP_LE_READ_BUFFER_SIZE:
2349 hci_cc_le_read_buffer_size(hdev, skb);
2350 break;
2351
2352 case HCI_OP_USER_CONFIRM_REPLY:
2353 hci_cc_user_confirm_reply(hdev, skb);
2354 break;
2355
2356 case HCI_OP_USER_CONFIRM_NEG_REPLY:
2357 hci_cc_user_confirm_neg_reply(hdev, skb);
2358 break;
2359
2360 case HCI_OP_USER_PASSKEY_REPLY:
2361 hci_cc_user_passkey_reply(hdev, skb);
2362 break;
2363
2364 case HCI_OP_USER_PASSKEY_NEG_REPLY:
2365 hci_cc_user_passkey_neg_reply(hdev, skb);
2366 break;
2367
2368 case HCI_OP_LE_SET_SCAN_PARAM:
2369 hci_cc_le_set_scan_param(hdev, skb);
2370 break;
2371
2372 case HCI_OP_LE_SET_SCAN_ENABLE:
2373 hci_cc_le_set_scan_enable(hdev, skb);
2374 break;
2375
2376 case HCI_OP_LE_LTK_REPLY:
2377 hci_cc_le_ltk_reply(hdev, skb);
2378 break;
2379
2380 case HCI_OP_LE_LTK_NEG_REPLY:
2381 hci_cc_le_ltk_neg_reply(hdev, skb);
2382 break;
2383
2384 case HCI_OP_WRITE_LE_HOST_SUPPORTED:
2385 hci_cc_write_le_host_supported(hdev, skb);
2386 break;
2387
2388 default:
2389 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
2390 break;
2391 }
2392
2393 if (ev->opcode != HCI_OP_NOP)
2394 del_timer(&hdev->cmd_timer);
2395
2396 if (ev->ncmd) {
2397 atomic_set(&hdev->cmd_cnt, 1);
2398 if (!skb_queue_empty(&hdev->cmd_q))
2399 queue_work(hdev->workqueue, &hdev->cmd_work);
2400 }
2401}
2402
2403static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
2404{
2405 struct hci_ev_cmd_status *ev = (void *) skb->data;
2406 __u16 opcode;
2407
2408 skb_pull(skb, sizeof(*ev));
2409
2410 opcode = __le16_to_cpu(ev->opcode);
2411
2412 switch (opcode) {
2413 case HCI_OP_INQUIRY:
2414 hci_cs_inquiry(hdev, ev->status);
2415 break;
2416
2417 case HCI_OP_CREATE_CONN:
2418 hci_cs_create_conn(hdev, ev->status);
2419 break;
2420
2421 case HCI_OP_ADD_SCO:
2422 hci_cs_add_sco(hdev, ev->status);
2423 break;
2424
2425 case HCI_OP_AUTH_REQUESTED:
2426 hci_cs_auth_requested(hdev, ev->status);
2427 break;
2428
2429 case HCI_OP_SET_CONN_ENCRYPT:
2430 hci_cs_set_conn_encrypt(hdev, ev->status);
2431 break;
2432
2433 case HCI_OP_REMOTE_NAME_REQ:
2434 hci_cs_remote_name_req(hdev, ev->status);
2435 break;
2436
2437 case HCI_OP_READ_REMOTE_FEATURES:
2438 hci_cs_read_remote_features(hdev, ev->status);
2439 break;
2440
2441 case HCI_OP_READ_REMOTE_EXT_FEATURES:
2442 hci_cs_read_remote_ext_features(hdev, ev->status);
2443 break;
2444
2445 case HCI_OP_SETUP_SYNC_CONN:
2446 hci_cs_setup_sync_conn(hdev, ev->status);
2447 break;
2448
2449 case HCI_OP_SNIFF_MODE:
2450 hci_cs_sniff_mode(hdev, ev->status);
2451 break;
2452
2453 case HCI_OP_EXIT_SNIFF_MODE:
2454 hci_cs_exit_sniff_mode(hdev, ev->status);
2455 break;
2456
2457 case HCI_OP_DISCONNECT:
2458 hci_cs_disconnect(hdev, ev->status);
2459 break;
2460
2461 case HCI_OP_LE_CREATE_CONN:
2462 hci_cs_le_create_conn(hdev, ev->status);
2463 break;
2464
2465 case HCI_OP_LE_START_ENC:
2466 hci_cs_le_start_enc(hdev, ev->status);
2467 break;
2468
2469 default:
2470 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
2471 break;
2472 }
2473
2474 if (ev->opcode != HCI_OP_NOP)
2475 del_timer(&hdev->cmd_timer);
2476
2477 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
2478 atomic_set(&hdev->cmd_cnt, 1);
2479 if (!skb_queue_empty(&hdev->cmd_q))
2480 queue_work(hdev->workqueue, &hdev->cmd_work);
2481 }
2482}
2483
2484static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2485{
2486 struct hci_ev_role_change *ev = (void *) skb->data;
2487 struct hci_conn *conn;
2488
2489 BT_DBG("%s status %d", hdev->name, ev->status);
2490
2491 hci_dev_lock(hdev);
2492
2493 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2494 if (conn) {
2495 if (!ev->status) {
2496 if (ev->role)
2497 conn->link_mode &= ~HCI_LM_MASTER;
2498 else
2499 conn->link_mode |= HCI_LM_MASTER;
2500 }
2501
2502 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
2503
2504 hci_role_switch_cfm(conn, ev->status, ev->role);
2505 }
2506
2507 hci_dev_unlock(hdev);
2508}
2509
2510static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
2511{
2512 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
2513 int i;
2514
2515 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
2516 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
2517 return;
2518 }
2519
2520 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
2521 ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
2522 BT_DBG("%s bad parameters", hdev->name);
2523 return;
2524 }
2525
2526 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
2527
2528 for (i = 0; i < ev->num_hndl; i++) {
2529 struct hci_comp_pkts_info *info = &ev->handles[i];
2530 struct hci_conn *conn;
2531 __u16 handle, count;
2532
2533 handle = __le16_to_cpu(info->handle);
2534 count = __le16_to_cpu(info->count);
2535
2536 conn = hci_conn_hash_lookup_handle(hdev, handle);
2537 if (!conn)
2538 continue;
2539
2540 conn->sent -= count;
2541
2542 switch (conn->type) {
2543 case ACL_LINK:
2544 hdev->acl_cnt += count;
2545 if (hdev->acl_cnt > hdev->acl_pkts)
2546 hdev->acl_cnt = hdev->acl_pkts;
2547 break;
2548
2549 case LE_LINK:
2550 if (hdev->le_pkts) {
2551 hdev->le_cnt += count;
2552 if (hdev->le_cnt > hdev->le_pkts)
2553 hdev->le_cnt = hdev->le_pkts;
2554 } else {
2555 hdev->acl_cnt += count;
2556 if (hdev->acl_cnt > hdev->acl_pkts)
2557 hdev->acl_cnt = hdev->acl_pkts;
2558 }
2559 break;
2560
2561 case SCO_LINK:
2562 hdev->sco_cnt += count;
2563 if (hdev->sco_cnt > hdev->sco_pkts)
2564 hdev->sco_cnt = hdev->sco_pkts;
2565 break;
2566
2567 default:
2568 BT_ERR("Unknown type %d conn %p", conn->type, conn);
2569 break;
2570 }
2571 }
2572
2573 queue_work(hdev->workqueue, &hdev->tx_work);
2574}
2575
2576static inline void hci_num_comp_blocks_evt(struct hci_dev *hdev,
2577 struct sk_buff *skb)
2578{
2579 struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
2580 int i;
2581
2582 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
2583 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
2584 return;
2585 }
2586
2587 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
2588 ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
2589 BT_DBG("%s bad parameters", hdev->name);
2590 return;
2591 }
2592
2593 BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
2594 ev->num_hndl);
2595
2596 for (i = 0; i < ev->num_hndl; i++) {
2597 struct hci_comp_blocks_info *info = &ev->handles[i];
2598 struct hci_conn *conn;
2599 __u16 handle, block_count;
2600
2601 handle = __le16_to_cpu(info->handle);
2602 block_count = __le16_to_cpu(info->blocks);
2603
2604 conn = hci_conn_hash_lookup_handle(hdev, handle);
2605 if (!conn)
2606 continue;
2607
2608 conn->sent -= block_count;
2609
2610 switch (conn->type) {
2611 case ACL_LINK:
2612 hdev->block_cnt += block_count;
2613 if (hdev->block_cnt > hdev->num_blocks)
2614 hdev->block_cnt = hdev->num_blocks;
2615 break;
2616
2617 default:
2618 BT_ERR("Unknown type %d conn %p", conn->type, conn);
2619 break;
2620 }
2621 }
2622
2623 queue_work(hdev->workqueue, &hdev->tx_work);
2624}
2625
2626static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2627{
2628 struct hci_ev_mode_change *ev = (void *) skb->data;
2629 struct hci_conn *conn;
2630
2631 BT_DBG("%s status %d", hdev->name, ev->status);
2632
2633 hci_dev_lock(hdev);
2634
2635 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2636 if (conn) {
2637 conn->mode = ev->mode;
2638 conn->interval = __le16_to_cpu(ev->interval);
2639
2640 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) {
2641 if (conn->mode == HCI_CM_ACTIVE)
2642 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
2643 else
2644 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
2645 }
2646
2647 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2648 hci_sco_setup(conn, ev->status);
2649 }
2650
2651 hci_dev_unlock(hdev);
2652}
2653
2654static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2655{
2656 struct hci_ev_pin_code_req *ev = (void *) skb->data;
2657 struct hci_conn *conn;
2658
2659 BT_DBG("%s", hdev->name);
2660
2661 hci_dev_lock(hdev);
2662
2663 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2664 if (!conn)
2665 goto unlock;
2666
2667 if (conn->state == BT_CONNECTED) {
2668 hci_conn_hold(conn);
2669 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
2670 hci_conn_put(conn);
2671 }
2672
2673 if (!test_bit(HCI_PAIRABLE, &hdev->dev_flags))
2674 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
2675 sizeof(ev->bdaddr), &ev->bdaddr);
2676 else if (test_bit(HCI_MGMT, &hdev->dev_flags)) {
2677 u8 secure;
2678
2679 if (conn->pending_sec_level == BT_SECURITY_HIGH)
2680 secure = 1;
2681 else
2682 secure = 0;
2683
2684 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
2685 }
2686
2687unlock:
2688 hci_dev_unlock(hdev);
2689}
2690
2691static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2692{
2693 struct hci_ev_link_key_req *ev = (void *) skb->data;
2694 struct hci_cp_link_key_reply cp;
2695 struct hci_conn *conn;
2696 struct link_key *key;
2697
2698 BT_DBG("%s", hdev->name);
2699
2700 if (!test_bit(HCI_LINK_KEYS, &hdev->dev_flags))
2701 return;
2702
2703 hci_dev_lock(hdev);
2704
2705 key = hci_find_link_key(hdev, &ev->bdaddr);
2706 if (!key) {
2707 BT_DBG("%s link key not found for %s", hdev->name,
2708 batostr(&ev->bdaddr));
2709 goto not_found;
2710 }
2711
2712 BT_DBG("%s found key type %u for %s", hdev->name, key->type,
2713 batostr(&ev->bdaddr));
2714
2715 if (!test_bit(HCI_DEBUG_KEYS, &hdev->dev_flags) &&
2716 key->type == HCI_LK_DEBUG_COMBINATION) {
2717 BT_DBG("%s ignoring debug key", hdev->name);
2718 goto not_found;
2719 }
2720
2721 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2722 if (conn) {
2723 if (key->type == HCI_LK_UNAUTH_COMBINATION &&
2724 conn->auth_type != 0xff &&
2725 (conn->auth_type & 0x01)) {
2726 BT_DBG("%s ignoring unauthenticated key", hdev->name);
2727 goto not_found;
2728 }
2729
2730 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
2731 conn->pending_sec_level == BT_SECURITY_HIGH) {
2732 BT_DBG("%s ignoring key unauthenticated for high \
2733 security", hdev->name);
2734 goto not_found;
2735 }
2736
2737 conn->key_type = key->type;
2738 conn->pin_length = key->pin_len;
2739 }
2740
2741 bacpy(&cp.bdaddr, &ev->bdaddr);
2742 memcpy(cp.link_key, key->val, 16);
2743
2744 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
2745
2746 hci_dev_unlock(hdev);
2747
2748 return;
2749
2750not_found:
2751 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
2752 hci_dev_unlock(hdev);
2753}
2754
2755static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
2756{
2757 struct hci_ev_link_key_notify *ev = (void *) skb->data;
2758 struct hci_conn *conn;
2759 u8 pin_len = 0;
2760
2761 BT_DBG("%s", hdev->name);
2762
2763 hci_dev_lock(hdev);
2764
2765 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2766 if (conn) {
2767 hci_conn_hold(conn);
2768 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2769 pin_len = conn->pin_length;
2770
2771 if (ev->key_type != HCI_LK_CHANGED_COMBINATION)
2772 conn->key_type = ev->key_type;
2773
2774 hci_conn_put(conn);
2775 }
2776
2777 if (test_bit(HCI_LINK_KEYS, &hdev->dev_flags))
2778 hci_add_link_key(hdev, conn, 1, &ev->bdaddr, ev->link_key,
2779 ev->key_type, pin_len);
2780
2781 hci_dev_unlock(hdev);
2782}
2783
2784static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
2785{
2786 struct hci_ev_clock_offset *ev = (void *) skb->data;
2787 struct hci_conn *conn;
2788
2789 BT_DBG("%s status %d", hdev->name, ev->status);
2790
2791 hci_dev_lock(hdev);
2792
2793 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2794 if (conn && !ev->status) {
2795 struct inquiry_entry *ie;
2796
2797 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
2798 if (ie) {
2799 ie->data.clock_offset = ev->clock_offset;
2800 ie->timestamp = jiffies;
2801 }
2802 }
2803
2804 hci_dev_unlock(hdev);
2805}
2806
2807static inline void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2808{
2809 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
2810 struct hci_conn *conn;
2811
2812 BT_DBG("%s status %d", hdev->name, ev->status);
2813
2814 hci_dev_lock(hdev);
2815
2816 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2817 if (conn && !ev->status)
2818 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
2819
2820 hci_dev_unlock(hdev);
2821}
2822
2823static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
2824{
2825 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
2826 struct inquiry_entry *ie;
2827
2828 BT_DBG("%s", hdev->name);
2829
2830 hci_dev_lock(hdev);
2831
2832 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2833 if (ie) {
2834 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
2835 ie->timestamp = jiffies;
2836 }
2837
2838 hci_dev_unlock(hdev);
2839}
2840
2841static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
2842{
2843 struct inquiry_data data;
2844 int num_rsp = *((__u8 *) skb->data);
2845 bool name_known, ssp;
2846
2847 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
2848
2849 if (!num_rsp)
2850 return;
2851
2852 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
2853 return;
2854
2855 hci_dev_lock(hdev);
2856
2857 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
2858 struct inquiry_info_with_rssi_and_pscan_mode *info;
2859 info = (void *) (skb->data + 1);
2860
2861 for (; num_rsp; num_rsp--, info++) {
2862 bacpy(&data.bdaddr, &info->bdaddr);
2863 data.pscan_rep_mode = info->pscan_rep_mode;
2864 data.pscan_period_mode = info->pscan_period_mode;
2865 data.pscan_mode = info->pscan_mode;
2866 memcpy(data.dev_class, info->dev_class, 3);
2867 data.clock_offset = info->clock_offset;
2868 data.rssi = info->rssi;
2869 data.ssp_mode = 0x00;
2870
2871 name_known = hci_inquiry_cache_update(hdev, &data,
2872 false, &ssp);
2873 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2874 info->dev_class, info->rssi,
2875 !name_known, ssp, NULL, 0);
2876 }
2877 } else {
2878 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
2879
2880 for (; num_rsp; num_rsp--, info++) {
2881 bacpy(&data.bdaddr, &info->bdaddr);
2882 data.pscan_rep_mode = info->pscan_rep_mode;
2883 data.pscan_period_mode = info->pscan_period_mode;
2884 data.pscan_mode = 0x00;
2885 memcpy(data.dev_class, info->dev_class, 3);
2886 data.clock_offset = info->clock_offset;
2887 data.rssi = info->rssi;
2888 data.ssp_mode = 0x00;
2889 name_known = hci_inquiry_cache_update(hdev, &data,
2890 false, &ssp);
2891 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2892 info->dev_class, info->rssi,
2893 !name_known, ssp, NULL, 0);
2894 }
2895 }
2896
2897 hci_dev_unlock(hdev);
2898}
2899
2900static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
2901{
2902 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
2903 struct hci_conn *conn;
2904
2905 BT_DBG("%s", hdev->name);
2906
2907 hci_dev_lock(hdev);
2908
2909 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2910 if (!conn)
2911 goto unlock;
2912
2913 if (!ev->status && ev->page == 0x01) {
2914 struct inquiry_entry *ie;
2915
2916 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
2917 if (ie)
2918 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
2919
2920 if (ev->features[0] & LMP_HOST_SSP)
2921 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
2922 }
2923
2924 if (conn->state != BT_CONFIG)
2925 goto unlock;
2926
2927 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
2928 struct hci_cp_remote_name_req cp;
2929 memset(&cp, 0, sizeof(cp));
2930 bacpy(&cp.bdaddr, &conn->dst);
2931 cp.pscan_rep_mode = 0x02;
2932 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2933 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2934 mgmt_device_connected(hdev, &conn->dst, conn->type,
2935 conn->dst_type, 0, NULL, 0,
2936 conn->dev_class);
2937
2938 if (!hci_outgoing_auth_needed(hdev, conn)) {
2939 conn->state = BT_CONNECTED;
2940 hci_proto_connect_cfm(conn, ev->status);
2941 hci_conn_put(conn);
2942 }
2943
2944unlock:
2945 hci_dev_unlock(hdev);
2946}
2947
2948static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2949{
2950 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
2951 struct hci_conn *conn;
2952
2953 BT_DBG("%s status %d", hdev->name, ev->status);
2954
2955 hci_dev_lock(hdev);
2956
2957 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
2958 if (!conn) {
2959 if (ev->link_type == ESCO_LINK)
2960 goto unlock;
2961
2962 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
2963 if (!conn)
2964 goto unlock;
2965
2966 conn->type = SCO_LINK;
2967 }
2968
2969 switch (ev->status) {
2970 case 0x00:
2971 conn->handle = __le16_to_cpu(ev->handle);
2972 conn->state = BT_CONNECTED;
2973
2974 hci_conn_hold_device(conn);
2975 hci_conn_add_sysfs(conn);
2976 break;
2977
2978 case 0x11: /* Unsupported Feature or Parameter Value */
2979 case 0x1c: /* SCO interval rejected */
2980 case 0x1a: /* Unsupported Remote Feature */
2981 case 0x1f: /* Unspecified error */
2982 if (conn->out && conn->attempt < 2) {
2983 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
2984 (hdev->esco_type & EDR_ESCO_MASK);
2985 hci_setup_sync(conn, conn->link->handle);
2986 goto unlock;
2987 }
2988 /* fall through */
2989
2990 default:
2991 conn->state = BT_CLOSED;
2992 break;
2993 }
2994
2995 hci_proto_connect_cfm(conn, ev->status);
2996 if (ev->status)
2997 hci_conn_del(conn);
2998
2999unlock:
3000 hci_dev_unlock(hdev);
3001}
3002
3003static inline void hci_sync_conn_changed_evt(struct hci_dev *hdev, struct sk_buff *skb)
3004{
3005 BT_DBG("%s", hdev->name);
3006}
3007
3008static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
3009{
3010 struct hci_ev_sniff_subrate *ev = (void *) skb->data;
3011
3012 BT_DBG("%s status %d", hdev->name, ev->status);
3013}
3014
3015static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
3016{
3017 struct inquiry_data data;
3018 struct extended_inquiry_info *info = (void *) (skb->data + 1);
3019 int num_rsp = *((__u8 *) skb->data);
3020 size_t eir_len;
3021
3022 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3023
3024 if (!num_rsp)
3025 return;
3026
3027 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
3028 return;
3029
3030 hci_dev_lock(hdev);
3031
3032 for (; num_rsp; num_rsp--, info++) {
3033 bool name_known, ssp;
3034
3035 bacpy(&data.bdaddr, &info->bdaddr);
3036 data.pscan_rep_mode = info->pscan_rep_mode;
3037 data.pscan_period_mode = info->pscan_period_mode;
3038 data.pscan_mode = 0x00;
3039 memcpy(data.dev_class, info->dev_class, 3);
3040 data.clock_offset = info->clock_offset;
3041 data.rssi = info->rssi;
3042 data.ssp_mode = 0x01;
3043
3044 if (test_bit(HCI_MGMT, &hdev->dev_flags))
3045 name_known = eir_has_data_type(info->data,
3046 sizeof(info->data),
3047 EIR_NAME_COMPLETE);
3048 else
3049 name_known = true;
3050
3051 name_known = hci_inquiry_cache_update(hdev, &data, name_known,
3052 &ssp);
3053 eir_len = eir_get_length(info->data, sizeof(info->data));
3054 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3055 info->dev_class, info->rssi, !name_known,
3056 ssp, info->data, eir_len);
3057 }
3058
3059 hci_dev_unlock(hdev);
3060}
3061
3062static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
3063 struct sk_buff *skb)
3064{
3065 struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
3066 struct hci_conn *conn;
3067
3068 BT_DBG("%s status %u handle %u", hdev->name, ev->status,
3069 __le16_to_cpu(ev->handle));
3070
3071 hci_dev_lock(hdev);
3072
3073 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3074 if (!conn)
3075 goto unlock;
3076
3077 if (!ev->status)
3078 conn->sec_level = conn->pending_sec_level;
3079
3080 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3081
3082 if (ev->status && conn->state == BT_CONNECTED) {
3083 hci_acl_disconn(conn, HCI_ERROR_AUTH_FAILURE);
3084 hci_conn_put(conn);
3085 goto unlock;
3086 }
3087
3088 if (conn->state == BT_CONFIG) {
3089 if (!ev->status)
3090 conn->state = BT_CONNECTED;
3091
3092 hci_proto_connect_cfm(conn, ev->status);
3093 hci_conn_put(conn);
3094 } else {
3095 hci_auth_cfm(conn, ev->status);
3096
3097 hci_conn_hold(conn);
3098 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3099 hci_conn_put(conn);
3100 }
3101
3102unlock:
3103 hci_dev_unlock(hdev);
3104}
3105
3106static inline u8 hci_get_auth_req(struct hci_conn *conn)
3107{
3108 /* If remote requests dedicated bonding follow that lead */
3109 if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03) {
3110 /* If both remote and local IO capabilities allow MITM
3111 * protection then require it, otherwise don't */
3112 if (conn->remote_cap == 0x03 || conn->io_capability == 0x03)
3113 return 0x02;
3114 else
3115 return 0x03;
3116 }
3117
3118 /* If remote requests no-bonding follow that lead */
3119 if (conn->remote_auth == 0x00 || conn->remote_auth == 0x01)
3120 return conn->remote_auth | (conn->auth_type & 0x01);
3121
3122 return conn->auth_type;
3123}
3124
3125static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3126{
3127 struct hci_ev_io_capa_request *ev = (void *) skb->data;
3128 struct hci_conn *conn;
3129
3130 BT_DBG("%s", hdev->name);
3131
3132 hci_dev_lock(hdev);
3133
3134 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3135 if (!conn)
3136 goto unlock;
3137
3138 hci_conn_hold(conn);
3139
3140 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3141 goto unlock;
3142
3143 if (test_bit(HCI_PAIRABLE, &hdev->dev_flags) ||
3144 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
3145 struct hci_cp_io_capability_reply cp;
3146
3147 bacpy(&cp.bdaddr, &ev->bdaddr);
3148 /* Change the IO capability from KeyboardDisplay
3149 * to DisplayYesNo as it is not supported by BT spec. */
3150 cp.capability = (conn->io_capability == 0x04) ?
3151 0x01 : conn->io_capability;
3152 conn->auth_type = hci_get_auth_req(conn);
3153 cp.authentication = conn->auth_type;
3154
3155 if ((conn->out || test_bit(HCI_CONN_REMOTE_OOB, &conn->flags)) &&
3156 hci_find_remote_oob_data(hdev, &conn->dst))
3157 cp.oob_data = 0x01;
3158 else
3159 cp.oob_data = 0x00;
3160
3161 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
3162 sizeof(cp), &cp);
3163 } else {
3164 struct hci_cp_io_capability_neg_reply cp;
3165
3166 bacpy(&cp.bdaddr, &ev->bdaddr);
3167 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
3168
3169 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
3170 sizeof(cp), &cp);
3171 }
3172
3173unlock:
3174 hci_dev_unlock(hdev);
3175}
3176
3177static inline void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
3178{
3179 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
3180 struct hci_conn *conn;
3181
3182 BT_DBG("%s", hdev->name);
3183
3184 hci_dev_lock(hdev);
3185
3186 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3187 if (!conn)
3188 goto unlock;
3189
3190 conn->remote_cap = ev->capability;
3191 conn->remote_auth = ev->authentication;
3192 if (ev->oob_data)
3193 set_bit(HCI_CONN_REMOTE_OOB, &conn->flags);
3194
3195unlock:
3196 hci_dev_unlock(hdev);
3197}
3198
3199static inline void hci_user_confirm_request_evt(struct hci_dev *hdev,
3200 struct sk_buff *skb)
3201{
3202 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
3203 int loc_mitm, rem_mitm, confirm_hint = 0;
3204 struct hci_conn *conn;
3205
3206 BT_DBG("%s", hdev->name);
3207
3208 hci_dev_lock(hdev);
3209
3210 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3211 goto unlock;
3212
3213 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3214 if (!conn)
3215 goto unlock;
3216
3217 loc_mitm = (conn->auth_type & 0x01);
3218 rem_mitm = (conn->remote_auth & 0x01);
3219
3220 /* If we require MITM but the remote device can't provide that
3221 * (it has NoInputNoOutput) then reject the confirmation
3222 * request. The only exception is when we're dedicated bonding
3223 * initiators (connect_cfm_cb set) since then we always have the MITM
3224 * bit set. */
3225 if (!conn->connect_cfm_cb && loc_mitm && conn->remote_cap == 0x03) {
3226 BT_DBG("Rejecting request: remote device can't provide MITM");
3227 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
3228 sizeof(ev->bdaddr), &ev->bdaddr);
3229 goto unlock;
3230 }
3231
3232 /* If no side requires MITM protection; auto-accept */
3233 if ((!loc_mitm || conn->remote_cap == 0x03) &&
3234 (!rem_mitm || conn->io_capability == 0x03)) {
3235
3236 /* If we're not the initiators request authorization to
3237 * proceed from user space (mgmt_user_confirm with
3238 * confirm_hint set to 1). */
3239 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
3240 BT_DBG("Confirming auto-accept as acceptor");
3241 confirm_hint = 1;
3242 goto confirm;
3243 }
3244
3245 BT_DBG("Auto-accept of user confirmation with %ums delay",
3246 hdev->auto_accept_delay);
3247
3248 if (hdev->auto_accept_delay > 0) {
3249 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
3250 mod_timer(&conn->auto_accept_timer, jiffies + delay);
3251 goto unlock;
3252 }
3253
3254 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
3255 sizeof(ev->bdaddr), &ev->bdaddr);
3256 goto unlock;
3257 }
3258
3259confirm:
3260 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0, ev->passkey,
3261 confirm_hint);
3262
3263unlock:
3264 hci_dev_unlock(hdev);
3265}
3266
3267static inline void hci_user_passkey_request_evt(struct hci_dev *hdev,
3268 struct sk_buff *skb)
3269{
3270 struct hci_ev_user_passkey_req *ev = (void *) skb->data;
3271
3272 BT_DBG("%s", hdev->name);
3273
3274 hci_dev_lock(hdev);
3275
3276 if (test_bit(HCI_MGMT, &hdev->dev_flags))
3277 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
3278
3279 hci_dev_unlock(hdev);
3280}
3281
3282static inline void hci_simple_pair_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
3283{
3284 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
3285 struct hci_conn *conn;
3286
3287 BT_DBG("%s", hdev->name);
3288
3289 hci_dev_lock(hdev);
3290
3291 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3292 if (!conn)
3293 goto unlock;
3294
3295 /* To avoid duplicate auth_failed events to user space we check
3296 * the HCI_CONN_AUTH_PEND flag which will be set if we
3297 * initiated the authentication. A traditional auth_complete
3298 * event gets always produced as initiator and is also mapped to
3299 * the mgmt_auth_failed event */
3300 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status != 0)
3301 mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type,
3302 ev->status);
3303
3304 hci_conn_put(conn);
3305
3306unlock:
3307 hci_dev_unlock(hdev);
3308}
3309
3310static inline void hci_remote_host_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
3311{
3312 struct hci_ev_remote_host_features *ev = (void *) skb->data;
3313 struct inquiry_entry *ie;
3314
3315 BT_DBG("%s", hdev->name);
3316
3317 hci_dev_lock(hdev);
3318
3319 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3320 if (ie)
3321 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
3322
3323 hci_dev_unlock(hdev);
3324}
3325
3326static inline void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
3327 struct sk_buff *skb)
3328{
3329 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
3330 struct oob_data *data;
3331
3332 BT_DBG("%s", hdev->name);
3333
3334 hci_dev_lock(hdev);
3335
3336 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3337 goto unlock;
3338
3339 data = hci_find_remote_oob_data(hdev, &ev->bdaddr);
3340 if (data) {
3341 struct hci_cp_remote_oob_data_reply cp;
3342
3343 bacpy(&cp.bdaddr, &ev->bdaddr);
3344 memcpy(cp.hash, data->hash, sizeof(cp.hash));
3345 memcpy(cp.randomizer, data->randomizer, sizeof(cp.randomizer));
3346
3347 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY, sizeof(cp),
3348 &cp);
3349 } else {
3350 struct hci_cp_remote_oob_data_neg_reply cp;
3351
3352 bacpy(&cp.bdaddr, &ev->bdaddr);
3353 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY, sizeof(cp),
3354 &cp);
3355 }
3356
3357unlock:
3358 hci_dev_unlock(hdev);
3359}
3360
3361static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
3362{
3363 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
3364 struct hci_conn *conn;
3365
3366 BT_DBG("%s status %d", hdev->name, ev->status);
3367
3368 hci_dev_lock(hdev);
3369
3370 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &ev->bdaddr);
3371 if (!conn) {
3372 conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr);
3373 if (!conn) {
3374 BT_ERR("No memory for new connection");
3375 hci_dev_unlock(hdev);
3376 return;
3377 }
3378
3379 conn->dst_type = ev->bdaddr_type;
3380 }
3381
3382 if (ev->status) {
3383 mgmt_connect_failed(hdev, &ev->bdaddr, conn->type,
3384 conn->dst_type, ev->status);
3385 hci_proto_connect_cfm(conn, ev->status);
3386 conn->state = BT_CLOSED;
3387 hci_conn_del(conn);
3388 goto unlock;
3389 }
3390
3391 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3392 mgmt_device_connected(hdev, &ev->bdaddr, conn->type,
3393 conn->dst_type, 0, NULL, 0, NULL);
3394
3395 conn->sec_level = BT_SECURITY_LOW;
3396 conn->handle = __le16_to_cpu(ev->handle);
3397 conn->state = BT_CONNECTED;
3398
3399 hci_conn_hold_device(conn);
3400 hci_conn_add_sysfs(conn);
3401
3402 hci_proto_connect_cfm(conn, ev->status);
3403
3404unlock:
3405 hci_dev_unlock(hdev);
3406}
3407
3408static inline void hci_le_adv_report_evt(struct hci_dev *hdev,
3409 struct sk_buff *skb)
3410{
3411 u8 num_reports = skb->data[0];
3412 void *ptr = &skb->data[1];
3413 s8 rssi;
3414
3415 hci_dev_lock(hdev);
3416
3417 while (num_reports--) {
3418 struct hci_ev_le_advertising_info *ev = ptr;
3419
3420 rssi = ev->data[ev->length];
3421 mgmt_device_found(hdev, &ev->bdaddr, LE_LINK, ev->bdaddr_type,
3422 NULL, rssi, 0, 1, ev->data, ev->length);
3423
3424 ptr += sizeof(*ev) + ev->length + 1;
3425 }
3426
3427 hci_dev_unlock(hdev);
3428}
3429
3430static inline void hci_le_ltk_request_evt(struct hci_dev *hdev,
3431 struct sk_buff *skb)
3432{
3433 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
3434 struct hci_cp_le_ltk_reply cp;
3435 struct hci_cp_le_ltk_neg_reply neg;
3436 struct hci_conn *conn;
3437 struct smp_ltk *ltk;
3438
3439 BT_DBG("%s handle %d", hdev->name, __le16_to_cpu(ev->handle));
3440
3441 hci_dev_lock(hdev);
3442
3443 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3444 if (conn == NULL)
3445 goto not_found;
3446
3447 ltk = hci_find_ltk(hdev, ev->ediv, ev->random);
3448 if (ltk == NULL)
3449 goto not_found;
3450
3451 memcpy(cp.ltk, ltk->val, sizeof(ltk->val));
3452 cp.handle = cpu_to_le16(conn->handle);
3453
3454 if (ltk->authenticated)
3455 conn->sec_level = BT_SECURITY_HIGH;
3456
3457 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
3458
3459 if (ltk->type & HCI_SMP_STK) {
3460 list_del(<k->list);
3461 kfree(ltk);
3462 }
3463
3464 hci_dev_unlock(hdev);
3465
3466 return;
3467
3468not_found:
3469 neg.handle = ev->handle;
3470 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
3471 hci_dev_unlock(hdev);
3472}
3473
3474static inline void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
3475{
3476 struct hci_ev_le_meta *le_ev = (void *) skb->data;
3477
3478 skb_pull(skb, sizeof(*le_ev));
3479
3480 switch (le_ev->subevent) {
3481 case HCI_EV_LE_CONN_COMPLETE:
3482 hci_le_conn_complete_evt(hdev, skb);
3483 break;
3484
3485 case HCI_EV_LE_ADVERTISING_REPORT:
3486 hci_le_adv_report_evt(hdev, skb);
3487 break;
3488
3489 case HCI_EV_LE_LTK_REQ:
3490 hci_le_ltk_request_evt(hdev, skb);
3491 break;
3492
3493 default:
3494 break;
3495 }
3496}
3497
3498void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
3499{
3500 struct hci_event_hdr *hdr = (void *) skb->data;
3501 __u8 event = hdr->evt;
3502
3503 skb_pull(skb, HCI_EVENT_HDR_SIZE);
3504
3505 switch (event) {
3506 case HCI_EV_INQUIRY_COMPLETE:
3507 hci_inquiry_complete_evt(hdev, skb);
3508 break;
3509
3510 case HCI_EV_INQUIRY_RESULT:
3511 hci_inquiry_result_evt(hdev, skb);
3512 break;
3513
3514 case HCI_EV_CONN_COMPLETE:
3515 hci_conn_complete_evt(hdev, skb);
3516 break;
3517
3518 case HCI_EV_CONN_REQUEST:
3519 hci_conn_request_evt(hdev, skb);
3520 break;
3521
3522 case HCI_EV_DISCONN_COMPLETE:
3523 hci_disconn_complete_evt(hdev, skb);
3524 break;
3525
3526 case HCI_EV_AUTH_COMPLETE:
3527 hci_auth_complete_evt(hdev, skb);
3528 break;
3529
3530 case HCI_EV_REMOTE_NAME:
3531 hci_remote_name_evt(hdev, skb);
3532 break;
3533
3534 case HCI_EV_ENCRYPT_CHANGE:
3535 hci_encrypt_change_evt(hdev, skb);
3536 break;
3537
3538 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
3539 hci_change_link_key_complete_evt(hdev, skb);
3540 break;
3541
3542 case HCI_EV_REMOTE_FEATURES:
3543 hci_remote_features_evt(hdev, skb);
3544 break;
3545
3546 case HCI_EV_REMOTE_VERSION:
3547 hci_remote_version_evt(hdev, skb);
3548 break;
3549
3550 case HCI_EV_QOS_SETUP_COMPLETE:
3551 hci_qos_setup_complete_evt(hdev, skb);
3552 break;
3553
3554 case HCI_EV_CMD_COMPLETE:
3555 hci_cmd_complete_evt(hdev, skb);
3556 break;
3557
3558 case HCI_EV_CMD_STATUS:
3559 hci_cmd_status_evt(hdev, skb);
3560 break;
3561
3562 case HCI_EV_ROLE_CHANGE:
3563 hci_role_change_evt(hdev, skb);
3564 break;
3565
3566 case HCI_EV_NUM_COMP_PKTS:
3567 hci_num_comp_pkts_evt(hdev, skb);
3568 break;
3569
3570 case HCI_EV_MODE_CHANGE:
3571 hci_mode_change_evt(hdev, skb);
3572 break;
3573
3574 case HCI_EV_PIN_CODE_REQ:
3575 hci_pin_code_request_evt(hdev, skb);
3576 break;
3577
3578 case HCI_EV_LINK_KEY_REQ:
3579 hci_link_key_request_evt(hdev, skb);
3580 break;
3581
3582 case HCI_EV_LINK_KEY_NOTIFY:
3583 hci_link_key_notify_evt(hdev, skb);
3584 break;
3585
3586 case HCI_EV_CLOCK_OFFSET:
3587 hci_clock_offset_evt(hdev, skb);
3588 break;
3589
3590 case HCI_EV_PKT_TYPE_CHANGE:
3591 hci_pkt_type_change_evt(hdev, skb);
3592 break;
3593
3594 case HCI_EV_PSCAN_REP_MODE:
3595 hci_pscan_rep_mode_evt(hdev, skb);
3596 break;
3597
3598 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
3599 hci_inquiry_result_with_rssi_evt(hdev, skb);
3600 break;
3601
3602 case HCI_EV_REMOTE_EXT_FEATURES:
3603 hci_remote_ext_features_evt(hdev, skb);
3604 break;
3605
3606 case HCI_EV_SYNC_CONN_COMPLETE:
3607 hci_sync_conn_complete_evt(hdev, skb);
3608 break;
3609
3610 case HCI_EV_SYNC_CONN_CHANGED:
3611 hci_sync_conn_changed_evt(hdev, skb);
3612 break;
3613
3614 case HCI_EV_SNIFF_SUBRATE:
3615 hci_sniff_subrate_evt(hdev, skb);
3616 break;
3617
3618 case HCI_EV_EXTENDED_INQUIRY_RESULT:
3619 hci_extended_inquiry_result_evt(hdev, skb);
3620 break;
3621
3622 case HCI_EV_KEY_REFRESH_COMPLETE:
3623 hci_key_refresh_complete_evt(hdev, skb);
3624 break;
3625
3626 case HCI_EV_IO_CAPA_REQUEST:
3627 hci_io_capa_request_evt(hdev, skb);
3628 break;
3629
3630 case HCI_EV_IO_CAPA_REPLY:
3631 hci_io_capa_reply_evt(hdev, skb);
3632 break;
3633
3634 case HCI_EV_USER_CONFIRM_REQUEST:
3635 hci_user_confirm_request_evt(hdev, skb);
3636 break;
3637
3638 case HCI_EV_USER_PASSKEY_REQUEST:
3639 hci_user_passkey_request_evt(hdev, skb);
3640 break;
3641
3642 case HCI_EV_SIMPLE_PAIR_COMPLETE:
3643 hci_simple_pair_complete_evt(hdev, skb);
3644 break;
3645
3646 case HCI_EV_REMOTE_HOST_FEATURES:
3647 hci_remote_host_features_evt(hdev, skb);
3648 break;
3649
3650 case HCI_EV_LE_META:
3651 hci_le_meta_evt(hdev, skb);
3652 break;
3653
3654 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
3655 hci_remote_oob_data_request_evt(hdev, skb);
3656 break;
3657
3658 case HCI_EV_NUM_COMP_BLOCKS:
3659 hci_num_comp_blocks_evt(hdev, skb);
3660 break;
3661
3662 default:
3663 BT_DBG("%s event 0x%x", hdev->name, event);
3664 break;
3665 }
3666
3667 kfree_skb(skb);
3668 hdev->stat.evt_rx++;
3669}