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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
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 <asm/unaligned.h>
28
29#include <net/bluetooth/bluetooth.h>
30#include <net/bluetooth/hci_core.h>
31#include <net/bluetooth/mgmt.h>
32
33#include "hci_request.h"
34#include "hci_debugfs.h"
35#include "a2mp.h"
36#include "amp.h"
37#include "smp.h"
38
39#define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
40 "\x00\x00\x00\x00\x00\x00\x00\x00"
41
42/* Handle HCI Event packets */
43
44static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
45{
46 __u8 status = *((__u8 *) skb->data);
47
48 BT_DBG("%s status 0x%2.2x", hdev->name, status);
49
50 if (status)
51 return;
52
53 clear_bit(HCI_INQUIRY, &hdev->flags);
54 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
55 wake_up_bit(&hdev->flags, HCI_INQUIRY);
56
57 hci_dev_lock(hdev);
58 /* Set discovery state to stopped if we're not doing LE active
59 * scanning.
60 */
61 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
62 hdev->le_scan_type != LE_SCAN_ACTIVE)
63 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
64 hci_dev_unlock(hdev);
65
66 hci_conn_check_pending(hdev);
67}
68
69static void hci_cc_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
70{
71 __u8 status = *((__u8 *) skb->data);
72
73 BT_DBG("%s status 0x%2.2x", hdev->name, status);
74
75 if (status)
76 return;
77
78 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
79}
80
81static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
82{
83 __u8 status = *((__u8 *) skb->data);
84
85 BT_DBG("%s status 0x%2.2x", hdev->name, status);
86
87 if (status)
88 return;
89
90 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
91
92 hci_conn_check_pending(hdev);
93}
94
95static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev,
96 struct sk_buff *skb)
97{
98 BT_DBG("%s", hdev->name);
99}
100
101static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
102{
103 struct hci_rp_role_discovery *rp = (void *) skb->data;
104 struct hci_conn *conn;
105
106 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
107
108 if (rp->status)
109 return;
110
111 hci_dev_lock(hdev);
112
113 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
114 if (conn)
115 conn->role = rp->role;
116
117 hci_dev_unlock(hdev);
118}
119
120static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
121{
122 struct hci_rp_read_link_policy *rp = (void *) skb->data;
123 struct hci_conn *conn;
124
125 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
126
127 if (rp->status)
128 return;
129
130 hci_dev_lock(hdev);
131
132 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
133 if (conn)
134 conn->link_policy = __le16_to_cpu(rp->policy);
135
136 hci_dev_unlock(hdev);
137}
138
139static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
140{
141 struct hci_rp_write_link_policy *rp = (void *) skb->data;
142 struct hci_conn *conn;
143 void *sent;
144
145 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
146
147 if (rp->status)
148 return;
149
150 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
151 if (!sent)
152 return;
153
154 hci_dev_lock(hdev);
155
156 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
157 if (conn)
158 conn->link_policy = get_unaligned_le16(sent + 2);
159
160 hci_dev_unlock(hdev);
161}
162
163static void hci_cc_read_def_link_policy(struct hci_dev *hdev,
164 struct sk_buff *skb)
165{
166 struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
167
168 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
169
170 if (rp->status)
171 return;
172
173 hdev->link_policy = __le16_to_cpu(rp->policy);
174}
175
176static void hci_cc_write_def_link_policy(struct hci_dev *hdev,
177 struct sk_buff *skb)
178{
179 __u8 status = *((__u8 *) skb->data);
180 void *sent;
181
182 BT_DBG("%s status 0x%2.2x", hdev->name, status);
183
184 if (status)
185 return;
186
187 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
188 if (!sent)
189 return;
190
191 hdev->link_policy = get_unaligned_le16(sent);
192}
193
194static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
195{
196 __u8 status = *((__u8 *) skb->data);
197
198 BT_DBG("%s status 0x%2.2x", hdev->name, status);
199
200 clear_bit(HCI_RESET, &hdev->flags);
201
202 if (status)
203 return;
204
205 /* Reset all non-persistent flags */
206 hci_dev_clear_volatile_flags(hdev);
207
208 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
209
210 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
211 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
212
213 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
214 hdev->adv_data_len = 0;
215
216 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
217 hdev->scan_rsp_data_len = 0;
218
219 hdev->le_scan_type = LE_SCAN_PASSIVE;
220
221 hdev->ssp_debug_mode = 0;
222
223 hci_bdaddr_list_clear(&hdev->le_white_list);
224 hci_bdaddr_list_clear(&hdev->le_resolv_list);
225}
226
227static void hci_cc_read_stored_link_key(struct hci_dev *hdev,
228 struct sk_buff *skb)
229{
230 struct hci_rp_read_stored_link_key *rp = (void *)skb->data;
231 struct hci_cp_read_stored_link_key *sent;
232
233 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
234
235 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
236 if (!sent)
237 return;
238
239 if (!rp->status && sent->read_all == 0x01) {
240 hdev->stored_max_keys = rp->max_keys;
241 hdev->stored_num_keys = rp->num_keys;
242 }
243}
244
245static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
246 struct sk_buff *skb)
247{
248 struct hci_rp_delete_stored_link_key *rp = (void *)skb->data;
249
250 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
251
252 if (rp->status)
253 return;
254
255 if (rp->num_keys <= hdev->stored_num_keys)
256 hdev->stored_num_keys -= rp->num_keys;
257 else
258 hdev->stored_num_keys = 0;
259}
260
261static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
262{
263 __u8 status = *((__u8 *) skb->data);
264 void *sent;
265
266 BT_DBG("%s status 0x%2.2x", hdev->name, status);
267
268 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
269 if (!sent)
270 return;
271
272 hci_dev_lock(hdev);
273
274 if (hci_dev_test_flag(hdev, HCI_MGMT))
275 mgmt_set_local_name_complete(hdev, sent, status);
276 else if (!status)
277 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
278
279 hci_dev_unlock(hdev);
280}
281
282static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
283{
284 struct hci_rp_read_local_name *rp = (void *) skb->data;
285
286 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
287
288 if (rp->status)
289 return;
290
291 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
292 hci_dev_test_flag(hdev, HCI_CONFIG))
293 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
294}
295
296static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
297{
298 __u8 status = *((__u8 *) skb->data);
299 void *sent;
300
301 BT_DBG("%s status 0x%2.2x", hdev->name, status);
302
303 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
304 if (!sent)
305 return;
306
307 hci_dev_lock(hdev);
308
309 if (!status) {
310 __u8 param = *((__u8 *) sent);
311
312 if (param == AUTH_ENABLED)
313 set_bit(HCI_AUTH, &hdev->flags);
314 else
315 clear_bit(HCI_AUTH, &hdev->flags);
316 }
317
318 if (hci_dev_test_flag(hdev, HCI_MGMT))
319 mgmt_auth_enable_complete(hdev, status);
320
321 hci_dev_unlock(hdev);
322}
323
324static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
325{
326 __u8 status = *((__u8 *) skb->data);
327 __u8 param;
328 void *sent;
329
330 BT_DBG("%s status 0x%2.2x", hdev->name, status);
331
332 if (status)
333 return;
334
335 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
336 if (!sent)
337 return;
338
339 param = *((__u8 *) sent);
340
341 if (param)
342 set_bit(HCI_ENCRYPT, &hdev->flags);
343 else
344 clear_bit(HCI_ENCRYPT, &hdev->flags);
345}
346
347static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
348{
349 __u8 status = *((__u8 *) skb->data);
350 __u8 param;
351 void *sent;
352
353 BT_DBG("%s status 0x%2.2x", hdev->name, status);
354
355 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
356 if (!sent)
357 return;
358
359 param = *((__u8 *) sent);
360
361 hci_dev_lock(hdev);
362
363 if (status) {
364 hdev->discov_timeout = 0;
365 goto done;
366 }
367
368 if (param & SCAN_INQUIRY)
369 set_bit(HCI_ISCAN, &hdev->flags);
370 else
371 clear_bit(HCI_ISCAN, &hdev->flags);
372
373 if (param & SCAN_PAGE)
374 set_bit(HCI_PSCAN, &hdev->flags);
375 else
376 clear_bit(HCI_PSCAN, &hdev->flags);
377
378done:
379 hci_dev_unlock(hdev);
380}
381
382static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
383{
384 struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
385
386 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
387
388 if (rp->status)
389 return;
390
391 memcpy(hdev->dev_class, rp->dev_class, 3);
392
393 BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
394 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
395}
396
397static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
398{
399 __u8 status = *((__u8 *) skb->data);
400 void *sent;
401
402 BT_DBG("%s status 0x%2.2x", hdev->name, status);
403
404 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
405 if (!sent)
406 return;
407
408 hci_dev_lock(hdev);
409
410 if (status == 0)
411 memcpy(hdev->dev_class, sent, 3);
412
413 if (hci_dev_test_flag(hdev, HCI_MGMT))
414 mgmt_set_class_of_dev_complete(hdev, sent, status);
415
416 hci_dev_unlock(hdev);
417}
418
419static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
420{
421 struct hci_rp_read_voice_setting *rp = (void *) skb->data;
422 __u16 setting;
423
424 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
425
426 if (rp->status)
427 return;
428
429 setting = __le16_to_cpu(rp->voice_setting);
430
431 if (hdev->voice_setting == setting)
432 return;
433
434 hdev->voice_setting = setting;
435
436 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
437
438 if (hdev->notify)
439 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
440}
441
442static void hci_cc_write_voice_setting(struct hci_dev *hdev,
443 struct sk_buff *skb)
444{
445 __u8 status = *((__u8 *) skb->data);
446 __u16 setting;
447 void *sent;
448
449 BT_DBG("%s status 0x%2.2x", hdev->name, status);
450
451 if (status)
452 return;
453
454 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
455 if (!sent)
456 return;
457
458 setting = get_unaligned_le16(sent);
459
460 if (hdev->voice_setting == setting)
461 return;
462
463 hdev->voice_setting = setting;
464
465 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
466
467 if (hdev->notify)
468 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
469}
470
471static void hci_cc_read_num_supported_iac(struct hci_dev *hdev,
472 struct sk_buff *skb)
473{
474 struct hci_rp_read_num_supported_iac *rp = (void *) skb->data;
475
476 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
477
478 if (rp->status)
479 return;
480
481 hdev->num_iac = rp->num_iac;
482
483 BT_DBG("%s num iac %d", hdev->name, hdev->num_iac);
484}
485
486static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
487{
488 __u8 status = *((__u8 *) skb->data);
489 struct hci_cp_write_ssp_mode *sent;
490
491 BT_DBG("%s status 0x%2.2x", hdev->name, status);
492
493 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
494 if (!sent)
495 return;
496
497 hci_dev_lock(hdev);
498
499 if (!status) {
500 if (sent->mode)
501 hdev->features[1][0] |= LMP_HOST_SSP;
502 else
503 hdev->features[1][0] &= ~LMP_HOST_SSP;
504 }
505
506 if (hci_dev_test_flag(hdev, HCI_MGMT))
507 mgmt_ssp_enable_complete(hdev, sent->mode, status);
508 else if (!status) {
509 if (sent->mode)
510 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
511 else
512 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
513 }
514
515 hci_dev_unlock(hdev);
516}
517
518static void hci_cc_write_sc_support(struct hci_dev *hdev, struct sk_buff *skb)
519{
520 u8 status = *((u8 *) skb->data);
521 struct hci_cp_write_sc_support *sent;
522
523 BT_DBG("%s status 0x%2.2x", hdev->name, status);
524
525 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
526 if (!sent)
527 return;
528
529 hci_dev_lock(hdev);
530
531 if (!status) {
532 if (sent->support)
533 hdev->features[1][0] |= LMP_HOST_SC;
534 else
535 hdev->features[1][0] &= ~LMP_HOST_SC;
536 }
537
538 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !status) {
539 if (sent->support)
540 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
541 else
542 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
543 }
544
545 hci_dev_unlock(hdev);
546}
547
548static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
549{
550 struct hci_rp_read_local_version *rp = (void *) skb->data;
551
552 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
553
554 if (rp->status)
555 return;
556
557 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
558 hci_dev_test_flag(hdev, HCI_CONFIG)) {
559 hdev->hci_ver = rp->hci_ver;
560 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
561 hdev->lmp_ver = rp->lmp_ver;
562 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
563 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
564 }
565}
566
567static void hci_cc_read_local_commands(struct hci_dev *hdev,
568 struct sk_buff *skb)
569{
570 struct hci_rp_read_local_commands *rp = (void *) skb->data;
571
572 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
573
574 if (rp->status)
575 return;
576
577 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
578 hci_dev_test_flag(hdev, HCI_CONFIG))
579 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
580}
581
582static void hci_cc_read_auth_payload_timeout(struct hci_dev *hdev,
583 struct sk_buff *skb)
584{
585 struct hci_rp_read_auth_payload_to *rp = (void *)skb->data;
586 struct hci_conn *conn;
587
588 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
589
590 if (rp->status)
591 return;
592
593 hci_dev_lock(hdev);
594
595 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
596 if (conn)
597 conn->auth_payload_timeout = __le16_to_cpu(rp->timeout);
598
599 hci_dev_unlock(hdev);
600}
601
602static void hci_cc_write_auth_payload_timeout(struct hci_dev *hdev,
603 struct sk_buff *skb)
604{
605 struct hci_rp_write_auth_payload_to *rp = (void *)skb->data;
606 struct hci_conn *conn;
607 void *sent;
608
609 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
610
611 if (rp->status)
612 return;
613
614 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO);
615 if (!sent)
616 return;
617
618 hci_dev_lock(hdev);
619
620 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
621 if (conn)
622 conn->auth_payload_timeout = get_unaligned_le16(sent + 2);
623
624 hci_dev_unlock(hdev);
625}
626
627static void hci_cc_read_local_features(struct hci_dev *hdev,
628 struct sk_buff *skb)
629{
630 struct hci_rp_read_local_features *rp = (void *) skb->data;
631
632 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
633
634 if (rp->status)
635 return;
636
637 memcpy(hdev->features, rp->features, 8);
638
639 /* Adjust default settings according to features
640 * supported by device. */
641
642 if (hdev->features[0][0] & LMP_3SLOT)
643 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
644
645 if (hdev->features[0][0] & LMP_5SLOT)
646 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
647
648 if (hdev->features[0][1] & LMP_HV2) {
649 hdev->pkt_type |= (HCI_HV2);
650 hdev->esco_type |= (ESCO_HV2);
651 }
652
653 if (hdev->features[0][1] & LMP_HV3) {
654 hdev->pkt_type |= (HCI_HV3);
655 hdev->esco_type |= (ESCO_HV3);
656 }
657
658 if (lmp_esco_capable(hdev))
659 hdev->esco_type |= (ESCO_EV3);
660
661 if (hdev->features[0][4] & LMP_EV4)
662 hdev->esco_type |= (ESCO_EV4);
663
664 if (hdev->features[0][4] & LMP_EV5)
665 hdev->esco_type |= (ESCO_EV5);
666
667 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
668 hdev->esco_type |= (ESCO_2EV3);
669
670 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
671 hdev->esco_type |= (ESCO_3EV3);
672
673 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
674 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
675}
676
677static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
678 struct sk_buff *skb)
679{
680 struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
681
682 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
683
684 if (rp->status)
685 return;
686
687 if (hdev->max_page < rp->max_page)
688 hdev->max_page = rp->max_page;
689
690 if (rp->page < HCI_MAX_PAGES)
691 memcpy(hdev->features[rp->page], rp->features, 8);
692}
693
694static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
695 struct sk_buff *skb)
696{
697 struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
698
699 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
700
701 if (rp->status)
702 return;
703
704 hdev->flow_ctl_mode = rp->mode;
705}
706
707static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
708{
709 struct hci_rp_read_buffer_size *rp = (void *) skb->data;
710
711 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
712
713 if (rp->status)
714 return;
715
716 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
717 hdev->sco_mtu = rp->sco_mtu;
718 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
719 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
720
721 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
722 hdev->sco_mtu = 64;
723 hdev->sco_pkts = 8;
724 }
725
726 hdev->acl_cnt = hdev->acl_pkts;
727 hdev->sco_cnt = hdev->sco_pkts;
728
729 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
730 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
731}
732
733static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
734{
735 struct hci_rp_read_bd_addr *rp = (void *) skb->data;
736
737 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
738
739 if (rp->status)
740 return;
741
742 if (test_bit(HCI_INIT, &hdev->flags))
743 bacpy(&hdev->bdaddr, &rp->bdaddr);
744
745 if (hci_dev_test_flag(hdev, HCI_SETUP))
746 bacpy(&hdev->setup_addr, &rp->bdaddr);
747}
748
749static void hci_cc_read_page_scan_activity(struct hci_dev *hdev,
750 struct sk_buff *skb)
751{
752 struct hci_rp_read_page_scan_activity *rp = (void *) skb->data;
753
754 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
755
756 if (rp->status)
757 return;
758
759 if (test_bit(HCI_INIT, &hdev->flags)) {
760 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
761 hdev->page_scan_window = __le16_to_cpu(rp->window);
762 }
763}
764
765static void hci_cc_write_page_scan_activity(struct hci_dev *hdev,
766 struct sk_buff *skb)
767{
768 u8 status = *((u8 *) skb->data);
769 struct hci_cp_write_page_scan_activity *sent;
770
771 BT_DBG("%s status 0x%2.2x", hdev->name, status);
772
773 if (status)
774 return;
775
776 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
777 if (!sent)
778 return;
779
780 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
781 hdev->page_scan_window = __le16_to_cpu(sent->window);
782}
783
784static void hci_cc_read_page_scan_type(struct hci_dev *hdev,
785 struct sk_buff *skb)
786{
787 struct hci_rp_read_page_scan_type *rp = (void *) skb->data;
788
789 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
790
791 if (rp->status)
792 return;
793
794 if (test_bit(HCI_INIT, &hdev->flags))
795 hdev->page_scan_type = rp->type;
796}
797
798static void hci_cc_write_page_scan_type(struct hci_dev *hdev,
799 struct sk_buff *skb)
800{
801 u8 status = *((u8 *) skb->data);
802 u8 *type;
803
804 BT_DBG("%s status 0x%2.2x", hdev->name, status);
805
806 if (status)
807 return;
808
809 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
810 if (type)
811 hdev->page_scan_type = *type;
812}
813
814static void hci_cc_read_data_block_size(struct hci_dev *hdev,
815 struct sk_buff *skb)
816{
817 struct hci_rp_read_data_block_size *rp = (void *) skb->data;
818
819 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
820
821 if (rp->status)
822 return;
823
824 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
825 hdev->block_len = __le16_to_cpu(rp->block_len);
826 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
827
828 hdev->block_cnt = hdev->num_blocks;
829
830 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
831 hdev->block_cnt, hdev->block_len);
832}
833
834static void hci_cc_read_clock(struct hci_dev *hdev, struct sk_buff *skb)
835{
836 struct hci_rp_read_clock *rp = (void *) skb->data;
837 struct hci_cp_read_clock *cp;
838 struct hci_conn *conn;
839
840 BT_DBG("%s", hdev->name);
841
842 if (skb->len < sizeof(*rp))
843 return;
844
845 if (rp->status)
846 return;
847
848 hci_dev_lock(hdev);
849
850 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
851 if (!cp)
852 goto unlock;
853
854 if (cp->which == 0x00) {
855 hdev->clock = le32_to_cpu(rp->clock);
856 goto unlock;
857 }
858
859 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
860 if (conn) {
861 conn->clock = le32_to_cpu(rp->clock);
862 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
863 }
864
865unlock:
866 hci_dev_unlock(hdev);
867}
868
869static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
870 struct sk_buff *skb)
871{
872 struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
873
874 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
875
876 if (rp->status)
877 return;
878
879 hdev->amp_status = rp->amp_status;
880 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
881 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
882 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
883 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
884 hdev->amp_type = rp->amp_type;
885 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
886 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
887 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
888 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
889}
890
891static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
892 struct sk_buff *skb)
893{
894 struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data;
895
896 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
897
898 if (rp->status)
899 return;
900
901 hdev->inq_tx_power = rp->tx_power;
902}
903
904static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
905{
906 struct hci_rp_pin_code_reply *rp = (void *) skb->data;
907 struct hci_cp_pin_code_reply *cp;
908 struct hci_conn *conn;
909
910 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
911
912 hci_dev_lock(hdev);
913
914 if (hci_dev_test_flag(hdev, HCI_MGMT))
915 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
916
917 if (rp->status)
918 goto unlock;
919
920 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
921 if (!cp)
922 goto unlock;
923
924 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
925 if (conn)
926 conn->pin_length = cp->pin_len;
927
928unlock:
929 hci_dev_unlock(hdev);
930}
931
932static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
933{
934 struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
935
936 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
937
938 hci_dev_lock(hdev);
939
940 if (hci_dev_test_flag(hdev, HCI_MGMT))
941 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
942 rp->status);
943
944 hci_dev_unlock(hdev);
945}
946
947static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
948 struct sk_buff *skb)
949{
950 struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
951
952 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
953
954 if (rp->status)
955 return;
956
957 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
958 hdev->le_pkts = rp->le_max_pkt;
959
960 hdev->le_cnt = hdev->le_pkts;
961
962 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
963}
964
965static void hci_cc_le_read_local_features(struct hci_dev *hdev,
966 struct sk_buff *skb)
967{
968 struct hci_rp_le_read_local_features *rp = (void *) skb->data;
969
970 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
971
972 if (rp->status)
973 return;
974
975 memcpy(hdev->le_features, rp->features, 8);
976}
977
978static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
979 struct sk_buff *skb)
980{
981 struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data;
982
983 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
984
985 if (rp->status)
986 return;
987
988 hdev->adv_tx_power = rp->tx_power;
989}
990
991static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
992{
993 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
994
995 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
996
997 hci_dev_lock(hdev);
998
999 if (hci_dev_test_flag(hdev, HCI_MGMT))
1000 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
1001 rp->status);
1002
1003 hci_dev_unlock(hdev);
1004}
1005
1006static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
1007 struct sk_buff *skb)
1008{
1009 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
1010
1011 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1012
1013 hci_dev_lock(hdev);
1014
1015 if (hci_dev_test_flag(hdev, HCI_MGMT))
1016 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
1017 ACL_LINK, 0, rp->status);
1018
1019 hci_dev_unlock(hdev);
1020}
1021
1022static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
1023{
1024 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
1025
1026 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1027
1028 hci_dev_lock(hdev);
1029
1030 if (hci_dev_test_flag(hdev, HCI_MGMT))
1031 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
1032 0, rp->status);
1033
1034 hci_dev_unlock(hdev);
1035}
1036
1037static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
1038 struct sk_buff *skb)
1039{
1040 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
1041
1042 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1043
1044 hci_dev_lock(hdev);
1045
1046 if (hci_dev_test_flag(hdev, HCI_MGMT))
1047 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1048 ACL_LINK, 0, rp->status);
1049
1050 hci_dev_unlock(hdev);
1051}
1052
1053static void hci_cc_read_local_oob_data(struct hci_dev *hdev,
1054 struct sk_buff *skb)
1055{
1056 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
1057
1058 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1059}
1060
1061static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
1062 struct sk_buff *skb)
1063{
1064 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
1065
1066 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1067}
1068
1069static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb)
1070{
1071 __u8 status = *((__u8 *) skb->data);
1072 bdaddr_t *sent;
1073
1074 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1075
1076 if (status)
1077 return;
1078
1079 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1080 if (!sent)
1081 return;
1082
1083 hci_dev_lock(hdev);
1084
1085 bacpy(&hdev->random_addr, sent);
1086
1087 hci_dev_unlock(hdev);
1088}
1089
1090static void hci_cc_le_set_default_phy(struct hci_dev *hdev, struct sk_buff *skb)
1091{
1092 __u8 status = *((__u8 *) skb->data);
1093 struct hci_cp_le_set_default_phy *cp;
1094
1095 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1096
1097 if (status)
1098 return;
1099
1100 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1101 if (!cp)
1102 return;
1103
1104 hci_dev_lock(hdev);
1105
1106 hdev->le_tx_def_phys = cp->tx_phys;
1107 hdev->le_rx_def_phys = cp->rx_phys;
1108
1109 hci_dev_unlock(hdev);
1110}
1111
1112static void hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev,
1113 struct sk_buff *skb)
1114{
1115 __u8 status = *((__u8 *) skb->data);
1116 struct hci_cp_le_set_adv_set_rand_addr *cp;
1117 struct adv_info *adv_instance;
1118
1119 if (status)
1120 return;
1121
1122 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
1123 if (!cp)
1124 return;
1125
1126 hci_dev_lock(hdev);
1127
1128 if (!hdev->cur_adv_instance) {
1129 /* Store in hdev for instance 0 (Set adv and Directed advs) */
1130 bacpy(&hdev->random_addr, &cp->bdaddr);
1131 } else {
1132 adv_instance = hci_find_adv_instance(hdev,
1133 hdev->cur_adv_instance);
1134 if (adv_instance)
1135 bacpy(&adv_instance->random_addr, &cp->bdaddr);
1136 }
1137
1138 hci_dev_unlock(hdev);
1139}
1140
1141static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
1142{
1143 __u8 *sent, status = *((__u8 *) skb->data);
1144
1145 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1146
1147 if (status)
1148 return;
1149
1150 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1151 if (!sent)
1152 return;
1153
1154 hci_dev_lock(hdev);
1155
1156 /* If we're doing connection initiation as peripheral. Set a
1157 * timeout in case something goes wrong.
1158 */
1159 if (*sent) {
1160 struct hci_conn *conn;
1161
1162 hci_dev_set_flag(hdev, HCI_LE_ADV);
1163
1164 conn = hci_lookup_le_connect(hdev);
1165 if (conn)
1166 queue_delayed_work(hdev->workqueue,
1167 &conn->le_conn_timeout,
1168 conn->conn_timeout);
1169 } else {
1170 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1171 }
1172
1173 hci_dev_unlock(hdev);
1174}
1175
1176static void hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev,
1177 struct sk_buff *skb)
1178{
1179 struct hci_cp_le_set_ext_adv_enable *cp;
1180 __u8 status = *((__u8 *) skb->data);
1181
1182 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1183
1184 if (status)
1185 return;
1186
1187 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1188 if (!cp)
1189 return;
1190
1191 hci_dev_lock(hdev);
1192
1193 if (cp->enable) {
1194 struct hci_conn *conn;
1195
1196 hci_dev_set_flag(hdev, HCI_LE_ADV);
1197
1198 conn = hci_lookup_le_connect(hdev);
1199 if (conn)
1200 queue_delayed_work(hdev->workqueue,
1201 &conn->le_conn_timeout,
1202 conn->conn_timeout);
1203 } else {
1204 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1205 }
1206
1207 hci_dev_unlock(hdev);
1208}
1209
1210static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
1211{
1212 struct hci_cp_le_set_scan_param *cp;
1213 __u8 status = *((__u8 *) skb->data);
1214
1215 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1216
1217 if (status)
1218 return;
1219
1220 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1221 if (!cp)
1222 return;
1223
1224 hci_dev_lock(hdev);
1225
1226 hdev->le_scan_type = cp->type;
1227
1228 hci_dev_unlock(hdev);
1229}
1230
1231static void hci_cc_le_set_ext_scan_param(struct hci_dev *hdev,
1232 struct sk_buff *skb)
1233{
1234 struct hci_cp_le_set_ext_scan_params *cp;
1235 __u8 status = *((__u8 *) skb->data);
1236 struct hci_cp_le_scan_phy_params *phy_param;
1237
1238 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1239
1240 if (status)
1241 return;
1242
1243 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1244 if (!cp)
1245 return;
1246
1247 phy_param = (void *)cp->data;
1248
1249 hci_dev_lock(hdev);
1250
1251 hdev->le_scan_type = phy_param->type;
1252
1253 hci_dev_unlock(hdev);
1254}
1255
1256static bool has_pending_adv_report(struct hci_dev *hdev)
1257{
1258 struct discovery_state *d = &hdev->discovery;
1259
1260 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1261}
1262
1263static void clear_pending_adv_report(struct hci_dev *hdev)
1264{
1265 struct discovery_state *d = &hdev->discovery;
1266
1267 bacpy(&d->last_adv_addr, BDADDR_ANY);
1268 d->last_adv_data_len = 0;
1269}
1270
1271static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1272 u8 bdaddr_type, s8 rssi, u32 flags,
1273 u8 *data, u8 len)
1274{
1275 struct discovery_state *d = &hdev->discovery;
1276
1277 bacpy(&d->last_adv_addr, bdaddr);
1278 d->last_adv_addr_type = bdaddr_type;
1279 d->last_adv_rssi = rssi;
1280 d->last_adv_flags = flags;
1281 memcpy(d->last_adv_data, data, len);
1282 d->last_adv_data_len = len;
1283}
1284
1285static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
1286{
1287 hci_dev_lock(hdev);
1288
1289 switch (enable) {
1290 case LE_SCAN_ENABLE:
1291 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1292 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1293 clear_pending_adv_report(hdev);
1294 break;
1295
1296 case LE_SCAN_DISABLE:
1297 /* We do this here instead of when setting DISCOVERY_STOPPED
1298 * since the latter would potentially require waiting for
1299 * inquiry to stop too.
1300 */
1301 if (has_pending_adv_report(hdev)) {
1302 struct discovery_state *d = &hdev->discovery;
1303
1304 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1305 d->last_adv_addr_type, NULL,
1306 d->last_adv_rssi, d->last_adv_flags,
1307 d->last_adv_data,
1308 d->last_adv_data_len, NULL, 0);
1309 }
1310
1311 /* Cancel this timer so that we don't try to disable scanning
1312 * when it's already disabled.
1313 */
1314 cancel_delayed_work(&hdev->le_scan_disable);
1315
1316 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1317
1318 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1319 * interrupted scanning due to a connect request. Mark
1320 * therefore discovery as stopped. If this was not
1321 * because of a connect request advertising might have
1322 * been disabled because of active scanning, so
1323 * re-enable it again if necessary.
1324 */
1325 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1326 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1327 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1328 hdev->discovery.state == DISCOVERY_FINDING)
1329 hci_req_reenable_advertising(hdev);
1330
1331 break;
1332
1333 default:
1334 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1335 enable);
1336 break;
1337 }
1338
1339 hci_dev_unlock(hdev);
1340}
1341
1342static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
1343 struct sk_buff *skb)
1344{
1345 struct hci_cp_le_set_scan_enable *cp;
1346 __u8 status = *((__u8 *) skb->data);
1347
1348 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1349
1350 if (status)
1351 return;
1352
1353 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1354 if (!cp)
1355 return;
1356
1357 le_set_scan_enable_complete(hdev, cp->enable);
1358}
1359
1360static void hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev,
1361 struct sk_buff *skb)
1362{
1363 struct hci_cp_le_set_ext_scan_enable *cp;
1364 __u8 status = *((__u8 *) skb->data);
1365
1366 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1367
1368 if (status)
1369 return;
1370
1371 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1372 if (!cp)
1373 return;
1374
1375 le_set_scan_enable_complete(hdev, cp->enable);
1376}
1377
1378static void hci_cc_le_read_num_adv_sets(struct hci_dev *hdev,
1379 struct sk_buff *skb)
1380{
1381 struct hci_rp_le_read_num_supported_adv_sets *rp = (void *) skb->data;
1382
1383 BT_DBG("%s status 0x%2.2x No of Adv sets %u", hdev->name, rp->status,
1384 rp->num_of_sets);
1385
1386 if (rp->status)
1387 return;
1388
1389 hdev->le_num_of_adv_sets = rp->num_of_sets;
1390}
1391
1392static void hci_cc_le_read_white_list_size(struct hci_dev *hdev,
1393 struct sk_buff *skb)
1394{
1395 struct hci_rp_le_read_white_list_size *rp = (void *) skb->data;
1396
1397 BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
1398
1399 if (rp->status)
1400 return;
1401
1402 hdev->le_white_list_size = rp->size;
1403}
1404
1405static void hci_cc_le_clear_white_list(struct hci_dev *hdev,
1406 struct sk_buff *skb)
1407{
1408 __u8 status = *((__u8 *) skb->data);
1409
1410 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1411
1412 if (status)
1413 return;
1414
1415 hci_bdaddr_list_clear(&hdev->le_white_list);
1416}
1417
1418static void hci_cc_le_add_to_white_list(struct hci_dev *hdev,
1419 struct sk_buff *skb)
1420{
1421 struct hci_cp_le_add_to_white_list *sent;
1422 __u8 status = *((__u8 *) skb->data);
1423
1424 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1425
1426 if (status)
1427 return;
1428
1429 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST);
1430 if (!sent)
1431 return;
1432
1433 hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr,
1434 sent->bdaddr_type);
1435}
1436
1437static void hci_cc_le_del_from_white_list(struct hci_dev *hdev,
1438 struct sk_buff *skb)
1439{
1440 struct hci_cp_le_del_from_white_list *sent;
1441 __u8 status = *((__u8 *) skb->data);
1442
1443 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1444
1445 if (status)
1446 return;
1447
1448 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST);
1449 if (!sent)
1450 return;
1451
1452 hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr,
1453 sent->bdaddr_type);
1454}
1455
1456static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
1457 struct sk_buff *skb)
1458{
1459 struct hci_rp_le_read_supported_states *rp = (void *) skb->data;
1460
1461 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1462
1463 if (rp->status)
1464 return;
1465
1466 memcpy(hdev->le_states, rp->le_states, 8);
1467}
1468
1469static void hci_cc_le_read_def_data_len(struct hci_dev *hdev,
1470 struct sk_buff *skb)
1471{
1472 struct hci_rp_le_read_def_data_len *rp = (void *) skb->data;
1473
1474 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1475
1476 if (rp->status)
1477 return;
1478
1479 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1480 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1481}
1482
1483static void hci_cc_le_write_def_data_len(struct hci_dev *hdev,
1484 struct sk_buff *skb)
1485{
1486 struct hci_cp_le_write_def_data_len *sent;
1487 __u8 status = *((__u8 *) skb->data);
1488
1489 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1490
1491 if (status)
1492 return;
1493
1494 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1495 if (!sent)
1496 return;
1497
1498 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
1499 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
1500}
1501
1502static void hci_cc_le_add_to_resolv_list(struct hci_dev *hdev,
1503 struct sk_buff *skb)
1504{
1505 struct hci_cp_le_add_to_resolv_list *sent;
1506 __u8 status = *((__u8 *) skb->data);
1507
1508 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1509
1510 if (status)
1511 return;
1512
1513 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
1514 if (!sent)
1515 return;
1516
1517 hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
1518 sent->bdaddr_type, sent->peer_irk,
1519 sent->local_irk);
1520}
1521
1522static void hci_cc_le_del_from_resolv_list(struct hci_dev *hdev,
1523 struct sk_buff *skb)
1524{
1525 struct hci_cp_le_del_from_resolv_list *sent;
1526 __u8 status = *((__u8 *) skb->data);
1527
1528 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1529
1530 if (status)
1531 return;
1532
1533 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
1534 if (!sent)
1535 return;
1536
1537 hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
1538 sent->bdaddr_type);
1539}
1540
1541static void hci_cc_le_clear_resolv_list(struct hci_dev *hdev,
1542 struct sk_buff *skb)
1543{
1544 __u8 status = *((__u8 *) skb->data);
1545
1546 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1547
1548 if (status)
1549 return;
1550
1551 hci_bdaddr_list_clear(&hdev->le_resolv_list);
1552}
1553
1554static void hci_cc_le_read_resolv_list_size(struct hci_dev *hdev,
1555 struct sk_buff *skb)
1556{
1557 struct hci_rp_le_read_resolv_list_size *rp = (void *) skb->data;
1558
1559 BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
1560
1561 if (rp->status)
1562 return;
1563
1564 hdev->le_resolv_list_size = rp->size;
1565}
1566
1567static void hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev,
1568 struct sk_buff *skb)
1569{
1570 __u8 *sent, status = *((__u8 *) skb->data);
1571
1572 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1573
1574 if (status)
1575 return;
1576
1577 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
1578 if (!sent)
1579 return;
1580
1581 hci_dev_lock(hdev);
1582
1583 if (*sent)
1584 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
1585 else
1586 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
1587
1588 hci_dev_unlock(hdev);
1589}
1590
1591static void hci_cc_le_read_max_data_len(struct hci_dev *hdev,
1592 struct sk_buff *skb)
1593{
1594 struct hci_rp_le_read_max_data_len *rp = (void *) skb->data;
1595
1596 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1597
1598 if (rp->status)
1599 return;
1600
1601 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
1602 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
1603 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
1604 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
1605}
1606
1607static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
1608 struct sk_buff *skb)
1609{
1610 struct hci_cp_write_le_host_supported *sent;
1611 __u8 status = *((__u8 *) skb->data);
1612
1613 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1614
1615 if (status)
1616 return;
1617
1618 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
1619 if (!sent)
1620 return;
1621
1622 hci_dev_lock(hdev);
1623
1624 if (sent->le) {
1625 hdev->features[1][0] |= LMP_HOST_LE;
1626 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
1627 } else {
1628 hdev->features[1][0] &= ~LMP_HOST_LE;
1629 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
1630 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
1631 }
1632
1633 if (sent->simul)
1634 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
1635 else
1636 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
1637
1638 hci_dev_unlock(hdev);
1639}
1640
1641static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
1642{
1643 struct hci_cp_le_set_adv_param *cp;
1644 u8 status = *((u8 *) skb->data);
1645
1646 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1647
1648 if (status)
1649 return;
1650
1651 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
1652 if (!cp)
1653 return;
1654
1655 hci_dev_lock(hdev);
1656 hdev->adv_addr_type = cp->own_address_type;
1657 hci_dev_unlock(hdev);
1658}
1659
1660static void hci_cc_set_ext_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
1661{
1662 struct hci_rp_le_set_ext_adv_params *rp = (void *) skb->data;
1663 struct hci_cp_le_set_ext_adv_params *cp;
1664 struct adv_info *adv_instance;
1665
1666 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1667
1668 if (rp->status)
1669 return;
1670
1671 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
1672 if (!cp)
1673 return;
1674
1675 hci_dev_lock(hdev);
1676 hdev->adv_addr_type = cp->own_addr_type;
1677 if (!hdev->cur_adv_instance) {
1678 /* Store in hdev for instance 0 */
1679 hdev->adv_tx_power = rp->tx_power;
1680 } else {
1681 adv_instance = hci_find_adv_instance(hdev,
1682 hdev->cur_adv_instance);
1683 if (adv_instance)
1684 adv_instance->tx_power = rp->tx_power;
1685 }
1686 /* Update adv data as tx power is known now */
1687 hci_req_update_adv_data(hdev, hdev->cur_adv_instance);
1688 hci_dev_unlock(hdev);
1689}
1690
1691static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
1692{
1693 struct hci_rp_read_rssi *rp = (void *) skb->data;
1694 struct hci_conn *conn;
1695
1696 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1697
1698 if (rp->status)
1699 return;
1700
1701 hci_dev_lock(hdev);
1702
1703 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1704 if (conn)
1705 conn->rssi = rp->rssi;
1706
1707 hci_dev_unlock(hdev);
1708}
1709
1710static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb)
1711{
1712 struct hci_cp_read_tx_power *sent;
1713 struct hci_rp_read_tx_power *rp = (void *) skb->data;
1714 struct hci_conn *conn;
1715
1716 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1717
1718 if (rp->status)
1719 return;
1720
1721 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
1722 if (!sent)
1723 return;
1724
1725 hci_dev_lock(hdev);
1726
1727 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1728 if (!conn)
1729 goto unlock;
1730
1731 switch (sent->type) {
1732 case 0x00:
1733 conn->tx_power = rp->tx_power;
1734 break;
1735 case 0x01:
1736 conn->max_tx_power = rp->tx_power;
1737 break;
1738 }
1739
1740unlock:
1741 hci_dev_unlock(hdev);
1742}
1743
1744static void hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, struct sk_buff *skb)
1745{
1746 u8 status = *((u8 *) skb->data);
1747 u8 *mode;
1748
1749 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1750
1751 if (status)
1752 return;
1753
1754 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
1755 if (mode)
1756 hdev->ssp_debug_mode = *mode;
1757}
1758
1759static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
1760{
1761 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1762
1763 if (status) {
1764 hci_conn_check_pending(hdev);
1765 return;
1766 }
1767
1768 set_bit(HCI_INQUIRY, &hdev->flags);
1769}
1770
1771static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
1772{
1773 struct hci_cp_create_conn *cp;
1774 struct hci_conn *conn;
1775
1776 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1777
1778 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
1779 if (!cp)
1780 return;
1781
1782 hci_dev_lock(hdev);
1783
1784 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1785
1786 BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn);
1787
1788 if (status) {
1789 if (conn && conn->state == BT_CONNECT) {
1790 if (status != 0x0c || conn->attempt > 2) {
1791 conn->state = BT_CLOSED;
1792 hci_connect_cfm(conn, status);
1793 hci_conn_del(conn);
1794 } else
1795 conn->state = BT_CONNECT2;
1796 }
1797 } else {
1798 if (!conn) {
1799 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
1800 HCI_ROLE_MASTER);
1801 if (!conn)
1802 bt_dev_err(hdev, "no memory for new connection");
1803 }
1804 }
1805
1806 hci_dev_unlock(hdev);
1807}
1808
1809static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1810{
1811 struct hci_cp_add_sco *cp;
1812 struct hci_conn *acl, *sco;
1813 __u16 handle;
1814
1815 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1816
1817 if (!status)
1818 return;
1819
1820 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
1821 if (!cp)
1822 return;
1823
1824 handle = __le16_to_cpu(cp->handle);
1825
1826 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
1827
1828 hci_dev_lock(hdev);
1829
1830 acl = hci_conn_hash_lookup_handle(hdev, handle);
1831 if (acl) {
1832 sco = acl->link;
1833 if (sco) {
1834 sco->state = BT_CLOSED;
1835
1836 hci_connect_cfm(sco, status);
1837 hci_conn_del(sco);
1838 }
1839 }
1840
1841 hci_dev_unlock(hdev);
1842}
1843
1844static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
1845{
1846 struct hci_cp_auth_requested *cp;
1847 struct hci_conn *conn;
1848
1849 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1850
1851 if (!status)
1852 return;
1853
1854 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
1855 if (!cp)
1856 return;
1857
1858 hci_dev_lock(hdev);
1859
1860 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1861 if (conn) {
1862 if (conn->state == BT_CONFIG) {
1863 hci_connect_cfm(conn, status);
1864 hci_conn_drop(conn);
1865 }
1866 }
1867
1868 hci_dev_unlock(hdev);
1869}
1870
1871static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
1872{
1873 struct hci_cp_set_conn_encrypt *cp;
1874 struct hci_conn *conn;
1875
1876 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1877
1878 if (!status)
1879 return;
1880
1881 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
1882 if (!cp)
1883 return;
1884
1885 hci_dev_lock(hdev);
1886
1887 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1888 if (conn) {
1889 if (conn->state == BT_CONFIG) {
1890 hci_connect_cfm(conn, status);
1891 hci_conn_drop(conn);
1892 }
1893 }
1894
1895 hci_dev_unlock(hdev);
1896}
1897
1898static int hci_outgoing_auth_needed(struct hci_dev *hdev,
1899 struct hci_conn *conn)
1900{
1901 if (conn->state != BT_CONFIG || !conn->out)
1902 return 0;
1903
1904 if (conn->pending_sec_level == BT_SECURITY_SDP)
1905 return 0;
1906
1907 /* Only request authentication for SSP connections or non-SSP
1908 * devices with sec_level MEDIUM or HIGH or if MITM protection
1909 * is requested.
1910 */
1911 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
1912 conn->pending_sec_level != BT_SECURITY_FIPS &&
1913 conn->pending_sec_level != BT_SECURITY_HIGH &&
1914 conn->pending_sec_level != BT_SECURITY_MEDIUM)
1915 return 0;
1916
1917 return 1;
1918}
1919
1920static int hci_resolve_name(struct hci_dev *hdev,
1921 struct inquiry_entry *e)
1922{
1923 struct hci_cp_remote_name_req cp;
1924
1925 memset(&cp, 0, sizeof(cp));
1926
1927 bacpy(&cp.bdaddr, &e->data.bdaddr);
1928 cp.pscan_rep_mode = e->data.pscan_rep_mode;
1929 cp.pscan_mode = e->data.pscan_mode;
1930 cp.clock_offset = e->data.clock_offset;
1931
1932 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
1933}
1934
1935static bool hci_resolve_next_name(struct hci_dev *hdev)
1936{
1937 struct discovery_state *discov = &hdev->discovery;
1938 struct inquiry_entry *e;
1939
1940 if (list_empty(&discov->resolve))
1941 return false;
1942
1943 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
1944 if (!e)
1945 return false;
1946
1947 if (hci_resolve_name(hdev, e) == 0) {
1948 e->name_state = NAME_PENDING;
1949 return true;
1950 }
1951
1952 return false;
1953}
1954
1955static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
1956 bdaddr_t *bdaddr, u8 *name, u8 name_len)
1957{
1958 struct discovery_state *discov = &hdev->discovery;
1959 struct inquiry_entry *e;
1960
1961 /* Update the mgmt connected state if necessary. Be careful with
1962 * conn objects that exist but are not (yet) connected however.
1963 * Only those in BT_CONFIG or BT_CONNECTED states can be
1964 * considered connected.
1965 */
1966 if (conn &&
1967 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
1968 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
1969 mgmt_device_connected(hdev, conn, 0, name, name_len);
1970
1971 if (discov->state == DISCOVERY_STOPPED)
1972 return;
1973
1974 if (discov->state == DISCOVERY_STOPPING)
1975 goto discov_complete;
1976
1977 if (discov->state != DISCOVERY_RESOLVING)
1978 return;
1979
1980 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
1981 /* If the device was not found in a list of found devices names of which
1982 * are pending. there is no need to continue resolving a next name as it
1983 * will be done upon receiving another Remote Name Request Complete
1984 * Event */
1985 if (!e)
1986 return;
1987
1988 list_del(&e->list);
1989 if (name) {
1990 e->name_state = NAME_KNOWN;
1991 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
1992 e->data.rssi, name, name_len);
1993 } else {
1994 e->name_state = NAME_NOT_KNOWN;
1995 }
1996
1997 if (hci_resolve_next_name(hdev))
1998 return;
1999
2000discov_complete:
2001 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2002}
2003
2004static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
2005{
2006 struct hci_cp_remote_name_req *cp;
2007 struct hci_conn *conn;
2008
2009 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2010
2011 /* If successful wait for the name req complete event before
2012 * checking for the need to do authentication */
2013 if (!status)
2014 return;
2015
2016 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
2017 if (!cp)
2018 return;
2019
2020 hci_dev_lock(hdev);
2021
2022 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2023
2024 if (hci_dev_test_flag(hdev, HCI_MGMT))
2025 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
2026
2027 if (!conn)
2028 goto unlock;
2029
2030 if (!hci_outgoing_auth_needed(hdev, conn))
2031 goto unlock;
2032
2033 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2034 struct hci_cp_auth_requested auth_cp;
2035
2036 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2037
2038 auth_cp.handle = __cpu_to_le16(conn->handle);
2039 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
2040 sizeof(auth_cp), &auth_cp);
2041 }
2042
2043unlock:
2044 hci_dev_unlock(hdev);
2045}
2046
2047static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
2048{
2049 struct hci_cp_read_remote_features *cp;
2050 struct hci_conn *conn;
2051
2052 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2053
2054 if (!status)
2055 return;
2056
2057 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
2058 if (!cp)
2059 return;
2060
2061 hci_dev_lock(hdev);
2062
2063 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2064 if (conn) {
2065 if (conn->state == BT_CONFIG) {
2066 hci_connect_cfm(conn, status);
2067 hci_conn_drop(conn);
2068 }
2069 }
2070
2071 hci_dev_unlock(hdev);
2072}
2073
2074static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
2075{
2076 struct hci_cp_read_remote_ext_features *cp;
2077 struct hci_conn *conn;
2078
2079 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2080
2081 if (!status)
2082 return;
2083
2084 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2085 if (!cp)
2086 return;
2087
2088 hci_dev_lock(hdev);
2089
2090 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2091 if (conn) {
2092 if (conn->state == BT_CONFIG) {
2093 hci_connect_cfm(conn, status);
2094 hci_conn_drop(conn);
2095 }
2096 }
2097
2098 hci_dev_unlock(hdev);
2099}
2100
2101static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2102{
2103 struct hci_cp_setup_sync_conn *cp;
2104 struct hci_conn *acl, *sco;
2105 __u16 handle;
2106
2107 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2108
2109 if (!status)
2110 return;
2111
2112 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
2113 if (!cp)
2114 return;
2115
2116 handle = __le16_to_cpu(cp->handle);
2117
2118 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
2119
2120 hci_dev_lock(hdev);
2121
2122 acl = hci_conn_hash_lookup_handle(hdev, handle);
2123 if (acl) {
2124 sco = acl->link;
2125 if (sco) {
2126 sco->state = BT_CLOSED;
2127
2128 hci_connect_cfm(sco, status);
2129 hci_conn_del(sco);
2130 }
2131 }
2132
2133 hci_dev_unlock(hdev);
2134}
2135
2136static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
2137{
2138 struct hci_cp_sniff_mode *cp;
2139 struct hci_conn *conn;
2140
2141 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2142
2143 if (!status)
2144 return;
2145
2146 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2147 if (!cp)
2148 return;
2149
2150 hci_dev_lock(hdev);
2151
2152 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2153 if (conn) {
2154 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2155
2156 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2157 hci_sco_setup(conn, status);
2158 }
2159
2160 hci_dev_unlock(hdev);
2161}
2162
2163static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2164{
2165 struct hci_cp_exit_sniff_mode *cp;
2166 struct hci_conn *conn;
2167
2168 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2169
2170 if (!status)
2171 return;
2172
2173 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2174 if (!cp)
2175 return;
2176
2177 hci_dev_lock(hdev);
2178
2179 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2180 if (conn) {
2181 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2182
2183 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2184 hci_sco_setup(conn, status);
2185 }
2186
2187 hci_dev_unlock(hdev);
2188}
2189
2190static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2191{
2192 struct hci_cp_disconnect *cp;
2193 struct hci_conn *conn;
2194
2195 if (!status)
2196 return;
2197
2198 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2199 if (!cp)
2200 return;
2201
2202 hci_dev_lock(hdev);
2203
2204 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2205 if (conn)
2206 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2207 conn->dst_type, status);
2208
2209 hci_dev_unlock(hdev);
2210}
2211
2212static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2213 u8 peer_addr_type, u8 own_address_type,
2214 u8 filter_policy)
2215{
2216 struct hci_conn *conn;
2217
2218 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
2219 peer_addr_type);
2220 if (!conn)
2221 return;
2222
2223 /* Store the initiator and responder address information which
2224 * is needed for SMP. These values will not change during the
2225 * lifetime of the connection.
2226 */
2227 conn->init_addr_type = own_address_type;
2228 if (own_address_type == ADDR_LE_DEV_RANDOM)
2229 bacpy(&conn->init_addr, &hdev->random_addr);
2230 else
2231 bacpy(&conn->init_addr, &hdev->bdaddr);
2232
2233 conn->resp_addr_type = peer_addr_type;
2234 bacpy(&conn->resp_addr, peer_addr);
2235
2236 /* We don't want the connection attempt to stick around
2237 * indefinitely since LE doesn't have a page timeout concept
2238 * like BR/EDR. Set a timer for any connection that doesn't use
2239 * the white list for connecting.
2240 */
2241 if (filter_policy == HCI_LE_USE_PEER_ADDR)
2242 queue_delayed_work(conn->hdev->workqueue,
2243 &conn->le_conn_timeout,
2244 conn->conn_timeout);
2245}
2246
2247static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2248{
2249 struct hci_cp_le_create_conn *cp;
2250
2251 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2252
2253 /* All connection failure handling is taken care of by the
2254 * hci_le_conn_failed function which is triggered by the HCI
2255 * request completion callbacks used for connecting.
2256 */
2257 if (status)
2258 return;
2259
2260 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
2261 if (!cp)
2262 return;
2263
2264 hci_dev_lock(hdev);
2265
2266 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2267 cp->own_address_type, cp->filter_policy);
2268
2269 hci_dev_unlock(hdev);
2270}
2271
2272static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
2273{
2274 struct hci_cp_le_ext_create_conn *cp;
2275
2276 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2277
2278 /* All connection failure handling is taken care of by the
2279 * hci_le_conn_failed function which is triggered by the HCI
2280 * request completion callbacks used for connecting.
2281 */
2282 if (status)
2283 return;
2284
2285 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
2286 if (!cp)
2287 return;
2288
2289 hci_dev_lock(hdev);
2290
2291 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2292 cp->own_addr_type, cp->filter_policy);
2293
2294 hci_dev_unlock(hdev);
2295}
2296
2297static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
2298{
2299 struct hci_cp_le_read_remote_features *cp;
2300 struct hci_conn *conn;
2301
2302 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2303
2304 if (!status)
2305 return;
2306
2307 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
2308 if (!cp)
2309 return;
2310
2311 hci_dev_lock(hdev);
2312
2313 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2314 if (conn) {
2315 if (conn->state == BT_CONFIG) {
2316 hci_connect_cfm(conn, status);
2317 hci_conn_drop(conn);
2318 }
2319 }
2320
2321 hci_dev_unlock(hdev);
2322}
2323
2324static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
2325{
2326 struct hci_cp_le_start_enc *cp;
2327 struct hci_conn *conn;
2328
2329 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2330
2331 if (!status)
2332 return;
2333
2334 hci_dev_lock(hdev);
2335
2336 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
2337 if (!cp)
2338 goto unlock;
2339
2340 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2341 if (!conn)
2342 goto unlock;
2343
2344 if (conn->state != BT_CONNECTED)
2345 goto unlock;
2346
2347 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2348 hci_conn_drop(conn);
2349
2350unlock:
2351 hci_dev_unlock(hdev);
2352}
2353
2354static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
2355{
2356 struct hci_cp_switch_role *cp;
2357 struct hci_conn *conn;
2358
2359 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2360
2361 if (!status)
2362 return;
2363
2364 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
2365 if (!cp)
2366 return;
2367
2368 hci_dev_lock(hdev);
2369
2370 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2371 if (conn)
2372 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
2373
2374 hci_dev_unlock(hdev);
2375}
2376
2377static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2378{
2379 __u8 status = *((__u8 *) skb->data);
2380 struct discovery_state *discov = &hdev->discovery;
2381 struct inquiry_entry *e;
2382
2383 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2384
2385 hci_conn_check_pending(hdev);
2386
2387 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
2388 return;
2389
2390 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
2391 wake_up_bit(&hdev->flags, HCI_INQUIRY);
2392
2393 if (!hci_dev_test_flag(hdev, HCI_MGMT))
2394 return;
2395
2396 hci_dev_lock(hdev);
2397
2398 if (discov->state != DISCOVERY_FINDING)
2399 goto unlock;
2400
2401 if (list_empty(&discov->resolve)) {
2402 /* When BR/EDR inquiry is active and no LE scanning is in
2403 * progress, then change discovery state to indicate completion.
2404 *
2405 * When running LE scanning and BR/EDR inquiry simultaneously
2406 * and the LE scan already finished, then change the discovery
2407 * state to indicate completion.
2408 */
2409 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
2410 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
2411 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2412 goto unlock;
2413 }
2414
2415 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2416 if (e && hci_resolve_name(hdev, e) == 0) {
2417 e->name_state = NAME_PENDING;
2418 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
2419 } else {
2420 /* When BR/EDR inquiry is active and no LE scanning is in
2421 * progress, then change discovery state to indicate completion.
2422 *
2423 * When running LE scanning and BR/EDR inquiry simultaneously
2424 * and the LE scan already finished, then change the discovery
2425 * state to indicate completion.
2426 */
2427 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
2428 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
2429 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2430 }
2431
2432unlock:
2433 hci_dev_unlock(hdev);
2434}
2435
2436static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
2437{
2438 struct inquiry_data data;
2439 struct inquiry_info *info = (void *) (skb->data + 1);
2440 int num_rsp = *((__u8 *) skb->data);
2441
2442 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
2443
2444 if (!num_rsp)
2445 return;
2446
2447 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
2448 return;
2449
2450 hci_dev_lock(hdev);
2451
2452 for (; num_rsp; num_rsp--, info++) {
2453 u32 flags;
2454
2455 bacpy(&data.bdaddr, &info->bdaddr);
2456 data.pscan_rep_mode = info->pscan_rep_mode;
2457 data.pscan_period_mode = info->pscan_period_mode;
2458 data.pscan_mode = info->pscan_mode;
2459 memcpy(data.dev_class, info->dev_class, 3);
2460 data.clock_offset = info->clock_offset;
2461 data.rssi = HCI_RSSI_INVALID;
2462 data.ssp_mode = 0x00;
2463
2464 flags = hci_inquiry_cache_update(hdev, &data, false);
2465
2466 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2467 info->dev_class, HCI_RSSI_INVALID,
2468 flags, NULL, 0, NULL, 0);
2469 }
2470
2471 hci_dev_unlock(hdev);
2472}
2473
2474static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2475{
2476 struct hci_ev_conn_complete *ev = (void *) skb->data;
2477 struct hci_conn *conn;
2478
2479 BT_DBG("%s", hdev->name);
2480
2481 hci_dev_lock(hdev);
2482
2483 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
2484 if (!conn) {
2485 if (ev->link_type != SCO_LINK)
2486 goto unlock;
2487
2488 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
2489 if (!conn)
2490 goto unlock;
2491
2492 conn->type = SCO_LINK;
2493 }
2494
2495 if (!ev->status) {
2496 conn->handle = __le16_to_cpu(ev->handle);
2497
2498 if (conn->type == ACL_LINK) {
2499 conn->state = BT_CONFIG;
2500 hci_conn_hold(conn);
2501
2502 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
2503 !hci_find_link_key(hdev, &ev->bdaddr))
2504 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
2505 else
2506 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2507 } else
2508 conn->state = BT_CONNECTED;
2509
2510 hci_debugfs_create_conn(conn);
2511 hci_conn_add_sysfs(conn);
2512
2513 if (test_bit(HCI_AUTH, &hdev->flags))
2514 set_bit(HCI_CONN_AUTH, &conn->flags);
2515
2516 if (test_bit(HCI_ENCRYPT, &hdev->flags))
2517 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2518
2519 /* Get remote features */
2520 if (conn->type == ACL_LINK) {
2521 struct hci_cp_read_remote_features cp;
2522 cp.handle = ev->handle;
2523 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
2524 sizeof(cp), &cp);
2525
2526 hci_req_update_scan(hdev);
2527 }
2528
2529 /* Set packet type for incoming connection */
2530 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
2531 struct hci_cp_change_conn_ptype cp;
2532 cp.handle = ev->handle;
2533 cp.pkt_type = cpu_to_le16(conn->pkt_type);
2534 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
2535 &cp);
2536 }
2537 } else {
2538 conn->state = BT_CLOSED;
2539 if (conn->type == ACL_LINK)
2540 mgmt_connect_failed(hdev, &conn->dst, conn->type,
2541 conn->dst_type, ev->status);
2542 }
2543
2544 if (conn->type == ACL_LINK)
2545 hci_sco_setup(conn, ev->status);
2546
2547 if (ev->status) {
2548 hci_connect_cfm(conn, ev->status);
2549 hci_conn_del(conn);
2550 } else if (ev->link_type != ACL_LINK)
2551 hci_connect_cfm(conn, ev->status);
2552
2553unlock:
2554 hci_dev_unlock(hdev);
2555
2556 hci_conn_check_pending(hdev);
2557}
2558
2559static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
2560{
2561 struct hci_cp_reject_conn_req cp;
2562
2563 bacpy(&cp.bdaddr, bdaddr);
2564 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
2565 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
2566}
2567
2568static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2569{
2570 struct hci_ev_conn_request *ev = (void *) skb->data;
2571 int mask = hdev->link_mode;
2572 struct inquiry_entry *ie;
2573 struct hci_conn *conn;
2574 __u8 flags = 0;
2575
2576 BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr,
2577 ev->link_type);
2578
2579 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
2580 &flags);
2581
2582 if (!(mask & HCI_LM_ACCEPT)) {
2583 hci_reject_conn(hdev, &ev->bdaddr);
2584 return;
2585 }
2586
2587 if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr,
2588 BDADDR_BREDR)) {
2589 hci_reject_conn(hdev, &ev->bdaddr);
2590 return;
2591 }
2592
2593 /* Require HCI_CONNECTABLE or a whitelist entry to accept the
2594 * connection. These features are only touched through mgmt so
2595 * only do the checks if HCI_MGMT is set.
2596 */
2597 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
2598 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
2599 !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
2600 BDADDR_BREDR)) {
2601 hci_reject_conn(hdev, &ev->bdaddr);
2602 return;
2603 }
2604
2605 /* Connection accepted */
2606
2607 hci_dev_lock(hdev);
2608
2609 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2610 if (ie)
2611 memcpy(ie->data.dev_class, ev->dev_class, 3);
2612
2613 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
2614 &ev->bdaddr);
2615 if (!conn) {
2616 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
2617 HCI_ROLE_SLAVE);
2618 if (!conn) {
2619 bt_dev_err(hdev, "no memory for new connection");
2620 hci_dev_unlock(hdev);
2621 return;
2622 }
2623 }
2624
2625 memcpy(conn->dev_class, ev->dev_class, 3);
2626
2627 hci_dev_unlock(hdev);
2628
2629 if (ev->link_type == ACL_LINK ||
2630 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
2631 struct hci_cp_accept_conn_req cp;
2632 conn->state = BT_CONNECT;
2633
2634 bacpy(&cp.bdaddr, &ev->bdaddr);
2635
2636 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
2637 cp.role = 0x00; /* Become master */
2638 else
2639 cp.role = 0x01; /* Remain slave */
2640
2641 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
2642 } else if (!(flags & HCI_PROTO_DEFER)) {
2643 struct hci_cp_accept_sync_conn_req cp;
2644 conn->state = BT_CONNECT;
2645
2646 bacpy(&cp.bdaddr, &ev->bdaddr);
2647 cp.pkt_type = cpu_to_le16(conn->pkt_type);
2648
2649 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
2650 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
2651 cp.max_latency = cpu_to_le16(0xffff);
2652 cp.content_format = cpu_to_le16(hdev->voice_setting);
2653 cp.retrans_effort = 0xff;
2654
2655 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
2656 &cp);
2657 } else {
2658 conn->state = BT_CONNECT2;
2659 hci_connect_cfm(conn, 0);
2660 }
2661}
2662
2663static u8 hci_to_mgmt_reason(u8 err)
2664{
2665 switch (err) {
2666 case HCI_ERROR_CONNECTION_TIMEOUT:
2667 return MGMT_DEV_DISCONN_TIMEOUT;
2668 case HCI_ERROR_REMOTE_USER_TERM:
2669 case HCI_ERROR_REMOTE_LOW_RESOURCES:
2670 case HCI_ERROR_REMOTE_POWER_OFF:
2671 return MGMT_DEV_DISCONN_REMOTE;
2672 case HCI_ERROR_LOCAL_HOST_TERM:
2673 return MGMT_DEV_DISCONN_LOCAL_HOST;
2674 default:
2675 return MGMT_DEV_DISCONN_UNKNOWN;
2676 }
2677}
2678
2679static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2680{
2681 struct hci_ev_disconn_complete *ev = (void *) skb->data;
2682 u8 reason;
2683 struct hci_conn_params *params;
2684 struct hci_conn *conn;
2685 bool mgmt_connected;
2686 u8 type;
2687
2688 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2689
2690 hci_dev_lock(hdev);
2691
2692 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2693 if (!conn)
2694 goto unlock;
2695
2696 if (ev->status) {
2697 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2698 conn->dst_type, ev->status);
2699 goto unlock;
2700 }
2701
2702 conn->state = BT_CLOSED;
2703
2704 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2705
2706 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
2707 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
2708 else
2709 reason = hci_to_mgmt_reason(ev->reason);
2710
2711 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2712 reason, mgmt_connected);
2713
2714 if (conn->type == ACL_LINK) {
2715 if (test_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2716 hci_remove_link_key(hdev, &conn->dst);
2717
2718 hci_req_update_scan(hdev);
2719 }
2720
2721 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2722 if (params) {
2723 switch (params->auto_connect) {
2724 case HCI_AUTO_CONN_LINK_LOSS:
2725 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2726 break;
2727 /* Fall through */
2728
2729 case HCI_AUTO_CONN_DIRECT:
2730 case HCI_AUTO_CONN_ALWAYS:
2731 list_del_init(¶ms->action);
2732 list_add(¶ms->action, &hdev->pend_le_conns);
2733 hci_update_background_scan(hdev);
2734 break;
2735
2736 default:
2737 break;
2738 }
2739 }
2740
2741 type = conn->type;
2742
2743 hci_disconn_cfm(conn, ev->reason);
2744 hci_conn_del(conn);
2745
2746 /* Re-enable advertising if necessary, since it might
2747 * have been disabled by the connection. From the
2748 * HCI_LE_Set_Advertise_Enable command description in
2749 * the core specification (v4.0):
2750 * "The Controller shall continue advertising until the Host
2751 * issues an LE_Set_Advertise_Enable command with
2752 * Advertising_Enable set to 0x00 (Advertising is disabled)
2753 * or until a connection is created or until the Advertising
2754 * is timed out due to Directed Advertising."
2755 */
2756 if (type == LE_LINK)
2757 hci_req_reenable_advertising(hdev);
2758
2759unlock:
2760 hci_dev_unlock(hdev);
2761}
2762
2763static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2764{
2765 struct hci_ev_auth_complete *ev = (void *) skb->data;
2766 struct hci_conn *conn;
2767
2768 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2769
2770 hci_dev_lock(hdev);
2771
2772 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2773 if (!conn)
2774 goto unlock;
2775
2776 if (!ev->status) {
2777 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2778
2779 if (!hci_conn_ssp_enabled(conn) &&
2780 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
2781 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
2782 } else {
2783 set_bit(HCI_CONN_AUTH, &conn->flags);
2784 conn->sec_level = conn->pending_sec_level;
2785 }
2786 } else {
2787 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
2788 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2789
2790 mgmt_auth_failed(conn, ev->status);
2791 }
2792
2793 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2794 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
2795
2796 if (conn->state == BT_CONFIG) {
2797 if (!ev->status && hci_conn_ssp_enabled(conn)) {
2798 struct hci_cp_set_conn_encrypt cp;
2799 cp.handle = ev->handle;
2800 cp.encrypt = 0x01;
2801 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2802 &cp);
2803 } else {
2804 conn->state = BT_CONNECTED;
2805 hci_connect_cfm(conn, ev->status);
2806 hci_conn_drop(conn);
2807 }
2808 } else {
2809 hci_auth_cfm(conn, ev->status);
2810
2811 hci_conn_hold(conn);
2812 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2813 hci_conn_drop(conn);
2814 }
2815
2816 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
2817 if (!ev->status) {
2818 struct hci_cp_set_conn_encrypt cp;
2819 cp.handle = ev->handle;
2820 cp.encrypt = 0x01;
2821 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2822 &cp);
2823 } else {
2824 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2825 hci_encrypt_cfm(conn, ev->status, 0x00);
2826 }
2827 }
2828
2829unlock:
2830 hci_dev_unlock(hdev);
2831}
2832
2833static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
2834{
2835 struct hci_ev_remote_name *ev = (void *) skb->data;
2836 struct hci_conn *conn;
2837
2838 BT_DBG("%s", hdev->name);
2839
2840 hci_conn_check_pending(hdev);
2841
2842 hci_dev_lock(hdev);
2843
2844 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2845
2846 if (!hci_dev_test_flag(hdev, HCI_MGMT))
2847 goto check_auth;
2848
2849 if (ev->status == 0)
2850 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
2851 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
2852 else
2853 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
2854
2855check_auth:
2856 if (!conn)
2857 goto unlock;
2858
2859 if (!hci_outgoing_auth_needed(hdev, conn))
2860 goto unlock;
2861
2862 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2863 struct hci_cp_auth_requested cp;
2864
2865 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2866
2867 cp.handle = __cpu_to_le16(conn->handle);
2868 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
2869 }
2870
2871unlock:
2872 hci_dev_unlock(hdev);
2873}
2874
2875static void read_enc_key_size_complete(struct hci_dev *hdev, u8 status,
2876 u16 opcode, struct sk_buff *skb)
2877{
2878 const struct hci_rp_read_enc_key_size *rp;
2879 struct hci_conn *conn;
2880 u16 handle;
2881
2882 BT_DBG("%s status 0x%02x", hdev->name, status);
2883
2884 if (!skb || skb->len < sizeof(*rp)) {
2885 bt_dev_err(hdev, "invalid read key size response");
2886 return;
2887 }
2888
2889 rp = (void *)skb->data;
2890 handle = le16_to_cpu(rp->handle);
2891
2892 hci_dev_lock(hdev);
2893
2894 conn = hci_conn_hash_lookup_handle(hdev, handle);
2895 if (!conn)
2896 goto unlock;
2897
2898 /* If we fail to read the encryption key size, assume maximum
2899 * (which is the same we do also when this HCI command isn't
2900 * supported.
2901 */
2902 if (rp->status) {
2903 bt_dev_err(hdev, "failed to read key size for handle %u",
2904 handle);
2905 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2906 } else {
2907 conn->enc_key_size = rp->key_size;
2908 }
2909
2910 if (conn->state == BT_CONFIG) {
2911 conn->state = BT_CONNECTED;
2912 hci_connect_cfm(conn, 0);
2913 hci_conn_drop(conn);
2914 } else {
2915 u8 encrypt;
2916
2917 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2918 encrypt = 0x00;
2919 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2920 encrypt = 0x02;
2921 else
2922 encrypt = 0x01;
2923
2924 hci_encrypt_cfm(conn, 0, encrypt);
2925 }
2926
2927unlock:
2928 hci_dev_unlock(hdev);
2929}
2930
2931static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2932{
2933 struct hci_ev_encrypt_change *ev = (void *) skb->data;
2934 struct hci_conn *conn;
2935
2936 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2937
2938 hci_dev_lock(hdev);
2939
2940 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2941 if (!conn)
2942 goto unlock;
2943
2944 if (!ev->status) {
2945 if (ev->encrypt) {
2946 /* Encryption implies authentication */
2947 set_bit(HCI_CONN_AUTH, &conn->flags);
2948 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2949 conn->sec_level = conn->pending_sec_level;
2950
2951 /* P-256 authentication key implies FIPS */
2952 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
2953 set_bit(HCI_CONN_FIPS, &conn->flags);
2954
2955 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
2956 conn->type == LE_LINK)
2957 set_bit(HCI_CONN_AES_CCM, &conn->flags);
2958 } else {
2959 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
2960 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
2961 }
2962 }
2963
2964 /* We should disregard the current RPA and generate a new one
2965 * whenever the encryption procedure fails.
2966 */
2967 if (ev->status && conn->type == LE_LINK) {
2968 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
2969 hci_adv_instances_set_rpa_expired(hdev, true);
2970 }
2971
2972 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2973
2974 if (ev->status && conn->state == BT_CONNECTED) {
2975 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
2976 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2977
2978 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2979 hci_conn_drop(conn);
2980 goto unlock;
2981 }
2982
2983 /* In Secure Connections Only mode, do not allow any connections
2984 * that are not encrypted with AES-CCM using a P-256 authenticated
2985 * combination key.
2986 */
2987 if (hci_dev_test_flag(hdev, HCI_SC_ONLY) &&
2988 (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
2989 conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
2990 hci_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
2991 hci_conn_drop(conn);
2992 goto unlock;
2993 }
2994
2995 /* Try reading the encryption key size for encrypted ACL links */
2996 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
2997 struct hci_cp_read_enc_key_size cp;
2998 struct hci_request req;
2999
3000 /* Only send HCI_Read_Encryption_Key_Size if the
3001 * controller really supports it. If it doesn't, assume
3002 * the default size (16).
3003 */
3004 if (!(hdev->commands[20] & 0x10)) {
3005 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3006 goto notify;
3007 }
3008
3009 hci_req_init(&req, hdev);
3010
3011 cp.handle = cpu_to_le16(conn->handle);
3012 hci_req_add(&req, HCI_OP_READ_ENC_KEY_SIZE, sizeof(cp), &cp);
3013
3014 if (hci_req_run_skb(&req, read_enc_key_size_complete)) {
3015 bt_dev_err(hdev, "sending read key size failed");
3016 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3017 goto notify;
3018 }
3019
3020 goto unlock;
3021 }
3022
3023 /* Set the default Authenticated Payload Timeout after
3024 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
3025 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3026 * sent when the link is active and Encryption is enabled, the conn
3027 * type can be either LE or ACL and controller must support LMP Ping.
3028 * Ensure for AES-CCM encryption as well.
3029 */
3030 if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3031 test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
3032 ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
3033 (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
3034 struct hci_cp_write_auth_payload_to cp;
3035
3036 cp.handle = cpu_to_le16(conn->handle);
3037 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
3038 hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3039 sizeof(cp), &cp);
3040 }
3041
3042notify:
3043 if (conn->state == BT_CONFIG) {
3044 if (!ev->status)
3045 conn->state = BT_CONNECTED;
3046
3047 hci_connect_cfm(conn, ev->status);
3048 hci_conn_drop(conn);
3049 } else
3050 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
3051
3052unlock:
3053 hci_dev_unlock(hdev);
3054}
3055
3056static void hci_change_link_key_complete_evt(struct hci_dev *hdev,
3057 struct sk_buff *skb)
3058{
3059 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
3060 struct hci_conn *conn;
3061
3062 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3063
3064 hci_dev_lock(hdev);
3065
3066 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3067 if (conn) {
3068 if (!ev->status)
3069 set_bit(HCI_CONN_SECURE, &conn->flags);
3070
3071 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3072
3073 hci_key_change_cfm(conn, ev->status);
3074 }
3075
3076 hci_dev_unlock(hdev);
3077}
3078
3079static void hci_remote_features_evt(struct hci_dev *hdev,
3080 struct sk_buff *skb)
3081{
3082 struct hci_ev_remote_features *ev = (void *) skb->data;
3083 struct hci_conn *conn;
3084
3085 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3086
3087 hci_dev_lock(hdev);
3088
3089 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3090 if (!conn)
3091 goto unlock;
3092
3093 if (!ev->status)
3094 memcpy(conn->features[0], ev->features, 8);
3095
3096 if (conn->state != BT_CONFIG)
3097 goto unlock;
3098
3099 if (!ev->status && lmp_ext_feat_capable(hdev) &&
3100 lmp_ext_feat_capable(conn)) {
3101 struct hci_cp_read_remote_ext_features cp;
3102 cp.handle = ev->handle;
3103 cp.page = 0x01;
3104 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
3105 sizeof(cp), &cp);
3106 goto unlock;
3107 }
3108
3109 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3110 struct hci_cp_remote_name_req cp;
3111 memset(&cp, 0, sizeof(cp));
3112 bacpy(&cp.bdaddr, &conn->dst);
3113 cp.pscan_rep_mode = 0x02;
3114 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3115 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3116 mgmt_device_connected(hdev, conn, 0, NULL, 0);
3117
3118 if (!hci_outgoing_auth_needed(hdev, conn)) {
3119 conn->state = BT_CONNECTED;
3120 hci_connect_cfm(conn, ev->status);
3121 hci_conn_drop(conn);
3122 }
3123
3124unlock:
3125 hci_dev_unlock(hdev);
3126}
3127
3128static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
3129 u16 *opcode, u8 *status,
3130 hci_req_complete_t *req_complete,
3131 hci_req_complete_skb_t *req_complete_skb)
3132{
3133 struct hci_ev_cmd_complete *ev = (void *) skb->data;
3134
3135 *opcode = __le16_to_cpu(ev->opcode);
3136 *status = skb->data[sizeof(*ev)];
3137
3138 skb_pull(skb, sizeof(*ev));
3139
3140 switch (*opcode) {
3141 case HCI_OP_INQUIRY_CANCEL:
3142 hci_cc_inquiry_cancel(hdev, skb);
3143 break;
3144
3145 case HCI_OP_PERIODIC_INQ:
3146 hci_cc_periodic_inq(hdev, skb);
3147 break;
3148
3149 case HCI_OP_EXIT_PERIODIC_INQ:
3150 hci_cc_exit_periodic_inq(hdev, skb);
3151 break;
3152
3153 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
3154 hci_cc_remote_name_req_cancel(hdev, skb);
3155 break;
3156
3157 case HCI_OP_ROLE_DISCOVERY:
3158 hci_cc_role_discovery(hdev, skb);
3159 break;
3160
3161 case HCI_OP_READ_LINK_POLICY:
3162 hci_cc_read_link_policy(hdev, skb);
3163 break;
3164
3165 case HCI_OP_WRITE_LINK_POLICY:
3166 hci_cc_write_link_policy(hdev, skb);
3167 break;
3168
3169 case HCI_OP_READ_DEF_LINK_POLICY:
3170 hci_cc_read_def_link_policy(hdev, skb);
3171 break;
3172
3173 case HCI_OP_WRITE_DEF_LINK_POLICY:
3174 hci_cc_write_def_link_policy(hdev, skb);
3175 break;
3176
3177 case HCI_OP_RESET:
3178 hci_cc_reset(hdev, skb);
3179 break;
3180
3181 case HCI_OP_READ_STORED_LINK_KEY:
3182 hci_cc_read_stored_link_key(hdev, skb);
3183 break;
3184
3185 case HCI_OP_DELETE_STORED_LINK_KEY:
3186 hci_cc_delete_stored_link_key(hdev, skb);
3187 break;
3188
3189 case HCI_OP_WRITE_LOCAL_NAME:
3190 hci_cc_write_local_name(hdev, skb);
3191 break;
3192
3193 case HCI_OP_READ_LOCAL_NAME:
3194 hci_cc_read_local_name(hdev, skb);
3195 break;
3196
3197 case HCI_OP_WRITE_AUTH_ENABLE:
3198 hci_cc_write_auth_enable(hdev, skb);
3199 break;
3200
3201 case HCI_OP_WRITE_ENCRYPT_MODE:
3202 hci_cc_write_encrypt_mode(hdev, skb);
3203 break;
3204
3205 case HCI_OP_WRITE_SCAN_ENABLE:
3206 hci_cc_write_scan_enable(hdev, skb);
3207 break;
3208
3209 case HCI_OP_READ_CLASS_OF_DEV:
3210 hci_cc_read_class_of_dev(hdev, skb);
3211 break;
3212
3213 case HCI_OP_WRITE_CLASS_OF_DEV:
3214 hci_cc_write_class_of_dev(hdev, skb);
3215 break;
3216
3217 case HCI_OP_READ_VOICE_SETTING:
3218 hci_cc_read_voice_setting(hdev, skb);
3219 break;
3220
3221 case HCI_OP_WRITE_VOICE_SETTING:
3222 hci_cc_write_voice_setting(hdev, skb);
3223 break;
3224
3225 case HCI_OP_READ_NUM_SUPPORTED_IAC:
3226 hci_cc_read_num_supported_iac(hdev, skb);
3227 break;
3228
3229 case HCI_OP_WRITE_SSP_MODE:
3230 hci_cc_write_ssp_mode(hdev, skb);
3231 break;
3232
3233 case HCI_OP_WRITE_SC_SUPPORT:
3234 hci_cc_write_sc_support(hdev, skb);
3235 break;
3236
3237 case HCI_OP_READ_AUTH_PAYLOAD_TO:
3238 hci_cc_read_auth_payload_timeout(hdev, skb);
3239 break;
3240
3241 case HCI_OP_WRITE_AUTH_PAYLOAD_TO:
3242 hci_cc_write_auth_payload_timeout(hdev, skb);
3243 break;
3244
3245 case HCI_OP_READ_LOCAL_VERSION:
3246 hci_cc_read_local_version(hdev, skb);
3247 break;
3248
3249 case HCI_OP_READ_LOCAL_COMMANDS:
3250 hci_cc_read_local_commands(hdev, skb);
3251 break;
3252
3253 case HCI_OP_READ_LOCAL_FEATURES:
3254 hci_cc_read_local_features(hdev, skb);
3255 break;
3256
3257 case HCI_OP_READ_LOCAL_EXT_FEATURES:
3258 hci_cc_read_local_ext_features(hdev, skb);
3259 break;
3260
3261 case HCI_OP_READ_BUFFER_SIZE:
3262 hci_cc_read_buffer_size(hdev, skb);
3263 break;
3264
3265 case HCI_OP_READ_BD_ADDR:
3266 hci_cc_read_bd_addr(hdev, skb);
3267 break;
3268
3269 case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
3270 hci_cc_read_page_scan_activity(hdev, skb);
3271 break;
3272
3273 case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY:
3274 hci_cc_write_page_scan_activity(hdev, skb);
3275 break;
3276
3277 case HCI_OP_READ_PAGE_SCAN_TYPE:
3278 hci_cc_read_page_scan_type(hdev, skb);
3279 break;
3280
3281 case HCI_OP_WRITE_PAGE_SCAN_TYPE:
3282 hci_cc_write_page_scan_type(hdev, skb);
3283 break;
3284
3285 case HCI_OP_READ_DATA_BLOCK_SIZE:
3286 hci_cc_read_data_block_size(hdev, skb);
3287 break;
3288
3289 case HCI_OP_READ_FLOW_CONTROL_MODE:
3290 hci_cc_read_flow_control_mode(hdev, skb);
3291 break;
3292
3293 case HCI_OP_READ_LOCAL_AMP_INFO:
3294 hci_cc_read_local_amp_info(hdev, skb);
3295 break;
3296
3297 case HCI_OP_READ_CLOCK:
3298 hci_cc_read_clock(hdev, skb);
3299 break;
3300
3301 case HCI_OP_READ_INQ_RSP_TX_POWER:
3302 hci_cc_read_inq_rsp_tx_power(hdev, skb);
3303 break;
3304
3305 case HCI_OP_PIN_CODE_REPLY:
3306 hci_cc_pin_code_reply(hdev, skb);
3307 break;
3308
3309 case HCI_OP_PIN_CODE_NEG_REPLY:
3310 hci_cc_pin_code_neg_reply(hdev, skb);
3311 break;
3312
3313 case HCI_OP_READ_LOCAL_OOB_DATA:
3314 hci_cc_read_local_oob_data(hdev, skb);
3315 break;
3316
3317 case HCI_OP_READ_LOCAL_OOB_EXT_DATA:
3318 hci_cc_read_local_oob_ext_data(hdev, skb);
3319 break;
3320
3321 case HCI_OP_LE_READ_BUFFER_SIZE:
3322 hci_cc_le_read_buffer_size(hdev, skb);
3323 break;
3324
3325 case HCI_OP_LE_READ_LOCAL_FEATURES:
3326 hci_cc_le_read_local_features(hdev, skb);
3327 break;
3328
3329 case HCI_OP_LE_READ_ADV_TX_POWER:
3330 hci_cc_le_read_adv_tx_power(hdev, skb);
3331 break;
3332
3333 case HCI_OP_USER_CONFIRM_REPLY:
3334 hci_cc_user_confirm_reply(hdev, skb);
3335 break;
3336
3337 case HCI_OP_USER_CONFIRM_NEG_REPLY:
3338 hci_cc_user_confirm_neg_reply(hdev, skb);
3339 break;
3340
3341 case HCI_OP_USER_PASSKEY_REPLY:
3342 hci_cc_user_passkey_reply(hdev, skb);
3343 break;
3344
3345 case HCI_OP_USER_PASSKEY_NEG_REPLY:
3346 hci_cc_user_passkey_neg_reply(hdev, skb);
3347 break;
3348
3349 case HCI_OP_LE_SET_RANDOM_ADDR:
3350 hci_cc_le_set_random_addr(hdev, skb);
3351 break;
3352
3353 case HCI_OP_LE_SET_ADV_ENABLE:
3354 hci_cc_le_set_adv_enable(hdev, skb);
3355 break;
3356
3357 case HCI_OP_LE_SET_SCAN_PARAM:
3358 hci_cc_le_set_scan_param(hdev, skb);
3359 break;
3360
3361 case HCI_OP_LE_SET_SCAN_ENABLE:
3362 hci_cc_le_set_scan_enable(hdev, skb);
3363 break;
3364
3365 case HCI_OP_LE_READ_WHITE_LIST_SIZE:
3366 hci_cc_le_read_white_list_size(hdev, skb);
3367 break;
3368
3369 case HCI_OP_LE_CLEAR_WHITE_LIST:
3370 hci_cc_le_clear_white_list(hdev, skb);
3371 break;
3372
3373 case HCI_OP_LE_ADD_TO_WHITE_LIST:
3374 hci_cc_le_add_to_white_list(hdev, skb);
3375 break;
3376
3377 case HCI_OP_LE_DEL_FROM_WHITE_LIST:
3378 hci_cc_le_del_from_white_list(hdev, skb);
3379 break;
3380
3381 case HCI_OP_LE_READ_SUPPORTED_STATES:
3382 hci_cc_le_read_supported_states(hdev, skb);
3383 break;
3384
3385 case HCI_OP_LE_READ_DEF_DATA_LEN:
3386 hci_cc_le_read_def_data_len(hdev, skb);
3387 break;
3388
3389 case HCI_OP_LE_WRITE_DEF_DATA_LEN:
3390 hci_cc_le_write_def_data_len(hdev, skb);
3391 break;
3392
3393 case HCI_OP_LE_ADD_TO_RESOLV_LIST:
3394 hci_cc_le_add_to_resolv_list(hdev, skb);
3395 break;
3396
3397 case HCI_OP_LE_DEL_FROM_RESOLV_LIST:
3398 hci_cc_le_del_from_resolv_list(hdev, skb);
3399 break;
3400
3401 case HCI_OP_LE_CLEAR_RESOLV_LIST:
3402 hci_cc_le_clear_resolv_list(hdev, skb);
3403 break;
3404
3405 case HCI_OP_LE_READ_RESOLV_LIST_SIZE:
3406 hci_cc_le_read_resolv_list_size(hdev, skb);
3407 break;
3408
3409 case HCI_OP_LE_SET_ADDR_RESOLV_ENABLE:
3410 hci_cc_le_set_addr_resolution_enable(hdev, skb);
3411 break;
3412
3413 case HCI_OP_LE_READ_MAX_DATA_LEN:
3414 hci_cc_le_read_max_data_len(hdev, skb);
3415 break;
3416
3417 case HCI_OP_WRITE_LE_HOST_SUPPORTED:
3418 hci_cc_write_le_host_supported(hdev, skb);
3419 break;
3420
3421 case HCI_OP_LE_SET_ADV_PARAM:
3422 hci_cc_set_adv_param(hdev, skb);
3423 break;
3424
3425 case HCI_OP_READ_RSSI:
3426 hci_cc_read_rssi(hdev, skb);
3427 break;
3428
3429 case HCI_OP_READ_TX_POWER:
3430 hci_cc_read_tx_power(hdev, skb);
3431 break;
3432
3433 case HCI_OP_WRITE_SSP_DEBUG_MODE:
3434 hci_cc_write_ssp_debug_mode(hdev, skb);
3435 break;
3436
3437 case HCI_OP_LE_SET_EXT_SCAN_PARAMS:
3438 hci_cc_le_set_ext_scan_param(hdev, skb);
3439 break;
3440
3441 case HCI_OP_LE_SET_EXT_SCAN_ENABLE:
3442 hci_cc_le_set_ext_scan_enable(hdev, skb);
3443 break;
3444
3445 case HCI_OP_LE_SET_DEFAULT_PHY:
3446 hci_cc_le_set_default_phy(hdev, skb);
3447 break;
3448
3449 case HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS:
3450 hci_cc_le_read_num_adv_sets(hdev, skb);
3451 break;
3452
3453 case HCI_OP_LE_SET_EXT_ADV_PARAMS:
3454 hci_cc_set_ext_adv_param(hdev, skb);
3455 break;
3456
3457 case HCI_OP_LE_SET_EXT_ADV_ENABLE:
3458 hci_cc_le_set_ext_adv_enable(hdev, skb);
3459 break;
3460
3461 case HCI_OP_LE_SET_ADV_SET_RAND_ADDR:
3462 hci_cc_le_set_adv_set_random_addr(hdev, skb);
3463 break;
3464
3465 default:
3466 BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
3467 break;
3468 }
3469
3470 if (*opcode != HCI_OP_NOP)
3471 cancel_delayed_work(&hdev->cmd_timer);
3472
3473 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
3474 atomic_set(&hdev->cmd_cnt, 1);
3475
3476 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
3477 req_complete_skb);
3478
3479 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
3480 bt_dev_err(hdev,
3481 "unexpected event for opcode 0x%4.4x", *opcode);
3482 return;
3483 }
3484
3485 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
3486 queue_work(hdev->workqueue, &hdev->cmd_work);
3487}
3488
3489static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb,
3490 u16 *opcode, u8 *status,
3491 hci_req_complete_t *req_complete,
3492 hci_req_complete_skb_t *req_complete_skb)
3493{
3494 struct hci_ev_cmd_status *ev = (void *) skb->data;
3495
3496 skb_pull(skb, sizeof(*ev));
3497
3498 *opcode = __le16_to_cpu(ev->opcode);
3499 *status = ev->status;
3500
3501 switch (*opcode) {
3502 case HCI_OP_INQUIRY:
3503 hci_cs_inquiry(hdev, ev->status);
3504 break;
3505
3506 case HCI_OP_CREATE_CONN:
3507 hci_cs_create_conn(hdev, ev->status);
3508 break;
3509
3510 case HCI_OP_DISCONNECT:
3511 hci_cs_disconnect(hdev, ev->status);
3512 break;
3513
3514 case HCI_OP_ADD_SCO:
3515 hci_cs_add_sco(hdev, ev->status);
3516 break;
3517
3518 case HCI_OP_AUTH_REQUESTED:
3519 hci_cs_auth_requested(hdev, ev->status);
3520 break;
3521
3522 case HCI_OP_SET_CONN_ENCRYPT:
3523 hci_cs_set_conn_encrypt(hdev, ev->status);
3524 break;
3525
3526 case HCI_OP_REMOTE_NAME_REQ:
3527 hci_cs_remote_name_req(hdev, ev->status);
3528 break;
3529
3530 case HCI_OP_READ_REMOTE_FEATURES:
3531 hci_cs_read_remote_features(hdev, ev->status);
3532 break;
3533
3534 case HCI_OP_READ_REMOTE_EXT_FEATURES:
3535 hci_cs_read_remote_ext_features(hdev, ev->status);
3536 break;
3537
3538 case HCI_OP_SETUP_SYNC_CONN:
3539 hci_cs_setup_sync_conn(hdev, ev->status);
3540 break;
3541
3542 case HCI_OP_SNIFF_MODE:
3543 hci_cs_sniff_mode(hdev, ev->status);
3544 break;
3545
3546 case HCI_OP_EXIT_SNIFF_MODE:
3547 hci_cs_exit_sniff_mode(hdev, ev->status);
3548 break;
3549
3550 case HCI_OP_SWITCH_ROLE:
3551 hci_cs_switch_role(hdev, ev->status);
3552 break;
3553
3554 case HCI_OP_LE_CREATE_CONN:
3555 hci_cs_le_create_conn(hdev, ev->status);
3556 break;
3557
3558 case HCI_OP_LE_READ_REMOTE_FEATURES:
3559 hci_cs_le_read_remote_features(hdev, ev->status);
3560 break;
3561
3562 case HCI_OP_LE_START_ENC:
3563 hci_cs_le_start_enc(hdev, ev->status);
3564 break;
3565
3566 case HCI_OP_LE_EXT_CREATE_CONN:
3567 hci_cs_le_ext_create_conn(hdev, ev->status);
3568 break;
3569
3570 default:
3571 BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
3572 break;
3573 }
3574
3575 if (*opcode != HCI_OP_NOP)
3576 cancel_delayed_work(&hdev->cmd_timer);
3577
3578 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
3579 atomic_set(&hdev->cmd_cnt, 1);
3580
3581 /* Indicate request completion if the command failed. Also, if
3582 * we're not waiting for a special event and we get a success
3583 * command status we should try to flag the request as completed
3584 * (since for this kind of commands there will not be a command
3585 * complete event).
3586 */
3587 if (ev->status ||
3588 (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->hci.req_event))
3589 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
3590 req_complete_skb);
3591
3592 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
3593 bt_dev_err(hdev,
3594 "unexpected event for opcode 0x%4.4x", *opcode);
3595 return;
3596 }
3597
3598 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
3599 queue_work(hdev->workqueue, &hdev->cmd_work);
3600}
3601
3602static void hci_hardware_error_evt(struct hci_dev *hdev, struct sk_buff *skb)
3603{
3604 struct hci_ev_hardware_error *ev = (void *) skb->data;
3605
3606 hdev->hw_error_code = ev->code;
3607
3608 queue_work(hdev->req_workqueue, &hdev->error_reset);
3609}
3610
3611static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3612{
3613 struct hci_ev_role_change *ev = (void *) skb->data;
3614 struct hci_conn *conn;
3615
3616 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3617
3618 hci_dev_lock(hdev);
3619
3620 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3621 if (conn) {
3622 if (!ev->status)
3623 conn->role = ev->role;
3624
3625 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3626
3627 hci_role_switch_cfm(conn, ev->status, ev->role);
3628 }
3629
3630 hci_dev_unlock(hdev);
3631}
3632
3633static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
3634{
3635 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
3636 int i;
3637
3638 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
3639 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
3640 return;
3641 }
3642
3643 if (skb->len < sizeof(*ev) ||
3644 skb->len < struct_size(ev, handles, ev->num_hndl)) {
3645 BT_DBG("%s bad parameters", hdev->name);
3646 return;
3647 }
3648
3649 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
3650
3651 for (i = 0; i < ev->num_hndl; i++) {
3652 struct hci_comp_pkts_info *info = &ev->handles[i];
3653 struct hci_conn *conn;
3654 __u16 handle, count;
3655
3656 handle = __le16_to_cpu(info->handle);
3657 count = __le16_to_cpu(info->count);
3658
3659 conn = hci_conn_hash_lookup_handle(hdev, handle);
3660 if (!conn)
3661 continue;
3662
3663 conn->sent -= count;
3664
3665 switch (conn->type) {
3666 case ACL_LINK:
3667 hdev->acl_cnt += count;
3668 if (hdev->acl_cnt > hdev->acl_pkts)
3669 hdev->acl_cnt = hdev->acl_pkts;
3670 break;
3671
3672 case LE_LINK:
3673 if (hdev->le_pkts) {
3674 hdev->le_cnt += count;
3675 if (hdev->le_cnt > hdev->le_pkts)
3676 hdev->le_cnt = hdev->le_pkts;
3677 } else {
3678 hdev->acl_cnt += count;
3679 if (hdev->acl_cnt > hdev->acl_pkts)
3680 hdev->acl_cnt = hdev->acl_pkts;
3681 }
3682 break;
3683
3684 case SCO_LINK:
3685 hdev->sco_cnt += count;
3686 if (hdev->sco_cnt > hdev->sco_pkts)
3687 hdev->sco_cnt = hdev->sco_pkts;
3688 break;
3689
3690 default:
3691 bt_dev_err(hdev, "unknown type %d conn %p",
3692 conn->type, conn);
3693 break;
3694 }
3695 }
3696
3697 queue_work(hdev->workqueue, &hdev->tx_work);
3698}
3699
3700static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
3701 __u16 handle)
3702{
3703 struct hci_chan *chan;
3704
3705 switch (hdev->dev_type) {
3706 case HCI_PRIMARY:
3707 return hci_conn_hash_lookup_handle(hdev, handle);
3708 case HCI_AMP:
3709 chan = hci_chan_lookup_handle(hdev, handle);
3710 if (chan)
3711 return chan->conn;
3712 break;
3713 default:
3714 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
3715 break;
3716 }
3717
3718 return NULL;
3719}
3720
3721static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
3722{
3723 struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
3724 int i;
3725
3726 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
3727 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
3728 return;
3729 }
3730
3731 if (skb->len < sizeof(*ev) ||
3732 skb->len < struct_size(ev, handles, ev->num_hndl)) {
3733 BT_DBG("%s bad parameters", hdev->name);
3734 return;
3735 }
3736
3737 BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
3738 ev->num_hndl);
3739
3740 for (i = 0; i < ev->num_hndl; i++) {
3741 struct hci_comp_blocks_info *info = &ev->handles[i];
3742 struct hci_conn *conn = NULL;
3743 __u16 handle, block_count;
3744
3745 handle = __le16_to_cpu(info->handle);
3746 block_count = __le16_to_cpu(info->blocks);
3747
3748 conn = __hci_conn_lookup_handle(hdev, handle);
3749 if (!conn)
3750 continue;
3751
3752 conn->sent -= block_count;
3753
3754 switch (conn->type) {
3755 case ACL_LINK:
3756 case AMP_LINK:
3757 hdev->block_cnt += block_count;
3758 if (hdev->block_cnt > hdev->num_blocks)
3759 hdev->block_cnt = hdev->num_blocks;
3760 break;
3761
3762 default:
3763 bt_dev_err(hdev, "unknown type %d conn %p",
3764 conn->type, conn);
3765 break;
3766 }
3767 }
3768
3769 queue_work(hdev->workqueue, &hdev->tx_work);
3770}
3771
3772static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3773{
3774 struct hci_ev_mode_change *ev = (void *) skb->data;
3775 struct hci_conn *conn;
3776
3777 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3778
3779 hci_dev_lock(hdev);
3780
3781 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3782 if (conn) {
3783 conn->mode = ev->mode;
3784
3785 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
3786 &conn->flags)) {
3787 if (conn->mode == HCI_CM_ACTIVE)
3788 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3789 else
3790 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3791 }
3792
3793 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
3794 hci_sco_setup(conn, ev->status);
3795 }
3796
3797 hci_dev_unlock(hdev);
3798}
3799
3800static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3801{
3802 struct hci_ev_pin_code_req *ev = (void *) skb->data;
3803 struct hci_conn *conn;
3804
3805 BT_DBG("%s", hdev->name);
3806
3807 hci_dev_lock(hdev);
3808
3809 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3810 if (!conn)
3811 goto unlock;
3812
3813 if (conn->state == BT_CONNECTED) {
3814 hci_conn_hold(conn);
3815 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3816 hci_conn_drop(conn);
3817 }
3818
3819 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
3820 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
3821 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
3822 sizeof(ev->bdaddr), &ev->bdaddr);
3823 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
3824 u8 secure;
3825
3826 if (conn->pending_sec_level == BT_SECURITY_HIGH)
3827 secure = 1;
3828 else
3829 secure = 0;
3830
3831 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
3832 }
3833
3834unlock:
3835 hci_dev_unlock(hdev);
3836}
3837
3838static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
3839{
3840 if (key_type == HCI_LK_CHANGED_COMBINATION)
3841 return;
3842
3843 conn->pin_length = pin_len;
3844 conn->key_type = key_type;
3845
3846 switch (key_type) {
3847 case HCI_LK_LOCAL_UNIT:
3848 case HCI_LK_REMOTE_UNIT:
3849 case HCI_LK_DEBUG_COMBINATION:
3850 return;
3851 case HCI_LK_COMBINATION:
3852 if (pin_len == 16)
3853 conn->pending_sec_level = BT_SECURITY_HIGH;
3854 else
3855 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3856 break;
3857 case HCI_LK_UNAUTH_COMBINATION_P192:
3858 case HCI_LK_UNAUTH_COMBINATION_P256:
3859 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3860 break;
3861 case HCI_LK_AUTH_COMBINATION_P192:
3862 conn->pending_sec_level = BT_SECURITY_HIGH;
3863 break;
3864 case HCI_LK_AUTH_COMBINATION_P256:
3865 conn->pending_sec_level = BT_SECURITY_FIPS;
3866 break;
3867 }
3868}
3869
3870static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3871{
3872 struct hci_ev_link_key_req *ev = (void *) skb->data;
3873 struct hci_cp_link_key_reply cp;
3874 struct hci_conn *conn;
3875 struct link_key *key;
3876
3877 BT_DBG("%s", hdev->name);
3878
3879 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3880 return;
3881
3882 hci_dev_lock(hdev);
3883
3884 key = hci_find_link_key(hdev, &ev->bdaddr);
3885 if (!key) {
3886 BT_DBG("%s link key not found for %pMR", hdev->name,
3887 &ev->bdaddr);
3888 goto not_found;
3889 }
3890
3891 BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
3892 &ev->bdaddr);
3893
3894 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3895 if (conn) {
3896 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
3897
3898 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
3899 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
3900 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
3901 BT_DBG("%s ignoring unauthenticated key", hdev->name);
3902 goto not_found;
3903 }
3904
3905 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
3906 (conn->pending_sec_level == BT_SECURITY_HIGH ||
3907 conn->pending_sec_level == BT_SECURITY_FIPS)) {
3908 BT_DBG("%s ignoring key unauthenticated for high security",
3909 hdev->name);
3910 goto not_found;
3911 }
3912
3913 conn_set_key(conn, key->type, key->pin_len);
3914 }
3915
3916 bacpy(&cp.bdaddr, &ev->bdaddr);
3917 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
3918
3919 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
3920
3921 hci_dev_unlock(hdev);
3922
3923 return;
3924
3925not_found:
3926 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
3927 hci_dev_unlock(hdev);
3928}
3929
3930static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
3931{
3932 struct hci_ev_link_key_notify *ev = (void *) skb->data;
3933 struct hci_conn *conn;
3934 struct link_key *key;
3935 bool persistent;
3936 u8 pin_len = 0;
3937
3938 BT_DBG("%s", hdev->name);
3939
3940 hci_dev_lock(hdev);
3941
3942 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3943 if (!conn)
3944 goto unlock;
3945
3946 hci_conn_hold(conn);
3947 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3948 hci_conn_drop(conn);
3949
3950 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
3951 conn_set_key(conn, ev->key_type, conn->pin_length);
3952
3953 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3954 goto unlock;
3955
3956 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
3957 ev->key_type, pin_len, &persistent);
3958 if (!key)
3959 goto unlock;
3960
3961 /* Update connection information since adding the key will have
3962 * fixed up the type in the case of changed combination keys.
3963 */
3964 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
3965 conn_set_key(conn, key->type, key->pin_len);
3966
3967 mgmt_new_link_key(hdev, key, persistent);
3968
3969 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
3970 * is set. If it's not set simply remove the key from the kernel
3971 * list (we've still notified user space about it but with
3972 * store_hint being 0).
3973 */
3974 if (key->type == HCI_LK_DEBUG_COMBINATION &&
3975 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
3976 list_del_rcu(&key->list);
3977 kfree_rcu(key, rcu);
3978 goto unlock;
3979 }
3980
3981 if (persistent)
3982 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3983 else
3984 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3985
3986unlock:
3987 hci_dev_unlock(hdev);
3988}
3989
3990static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
3991{
3992 struct hci_ev_clock_offset *ev = (void *) skb->data;
3993 struct hci_conn *conn;
3994
3995 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3996
3997 hci_dev_lock(hdev);
3998
3999 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4000 if (conn && !ev->status) {
4001 struct inquiry_entry *ie;
4002
4003 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4004 if (ie) {
4005 ie->data.clock_offset = ev->clock_offset;
4006 ie->timestamp = jiffies;
4007 }
4008 }
4009
4010 hci_dev_unlock(hdev);
4011}
4012
4013static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
4014{
4015 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
4016 struct hci_conn *conn;
4017
4018 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4019
4020 hci_dev_lock(hdev);
4021
4022 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4023 if (conn && !ev->status)
4024 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
4025
4026 hci_dev_unlock(hdev);
4027}
4028
4029static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
4030{
4031 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
4032 struct inquiry_entry *ie;
4033
4034 BT_DBG("%s", hdev->name);
4035
4036 hci_dev_lock(hdev);
4037
4038 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4039 if (ie) {
4040 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
4041 ie->timestamp = jiffies;
4042 }
4043
4044 hci_dev_unlock(hdev);
4045}
4046
4047static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
4048 struct sk_buff *skb)
4049{
4050 struct inquiry_data data;
4051 int num_rsp = *((__u8 *) skb->data);
4052
4053 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
4054
4055 if (!num_rsp)
4056 return;
4057
4058 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
4059 return;
4060
4061 hci_dev_lock(hdev);
4062
4063 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
4064 struct inquiry_info_with_rssi_and_pscan_mode *info;
4065 info = (void *) (skb->data + 1);
4066
4067 for (; num_rsp; num_rsp--, info++) {
4068 u32 flags;
4069
4070 bacpy(&data.bdaddr, &info->bdaddr);
4071 data.pscan_rep_mode = info->pscan_rep_mode;
4072 data.pscan_period_mode = info->pscan_period_mode;
4073 data.pscan_mode = info->pscan_mode;
4074 memcpy(data.dev_class, info->dev_class, 3);
4075 data.clock_offset = info->clock_offset;
4076 data.rssi = info->rssi;
4077 data.ssp_mode = 0x00;
4078
4079 flags = hci_inquiry_cache_update(hdev, &data, false);
4080
4081 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4082 info->dev_class, info->rssi,
4083 flags, NULL, 0, NULL, 0);
4084 }
4085 } else {
4086 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
4087
4088 for (; num_rsp; num_rsp--, info++) {
4089 u32 flags;
4090
4091 bacpy(&data.bdaddr, &info->bdaddr);
4092 data.pscan_rep_mode = info->pscan_rep_mode;
4093 data.pscan_period_mode = info->pscan_period_mode;
4094 data.pscan_mode = 0x00;
4095 memcpy(data.dev_class, info->dev_class, 3);
4096 data.clock_offset = info->clock_offset;
4097 data.rssi = info->rssi;
4098 data.ssp_mode = 0x00;
4099
4100 flags = hci_inquiry_cache_update(hdev, &data, false);
4101
4102 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4103 info->dev_class, info->rssi,
4104 flags, NULL, 0, NULL, 0);
4105 }
4106 }
4107
4108 hci_dev_unlock(hdev);
4109}
4110
4111static void hci_remote_ext_features_evt(struct hci_dev *hdev,
4112 struct sk_buff *skb)
4113{
4114 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
4115 struct hci_conn *conn;
4116
4117 BT_DBG("%s", hdev->name);
4118
4119 hci_dev_lock(hdev);
4120
4121 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4122 if (!conn)
4123 goto unlock;
4124
4125 if (ev->page < HCI_MAX_PAGES)
4126 memcpy(conn->features[ev->page], ev->features, 8);
4127
4128 if (!ev->status && ev->page == 0x01) {
4129 struct inquiry_entry *ie;
4130
4131 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4132 if (ie)
4133 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4134
4135 if (ev->features[0] & LMP_HOST_SSP) {
4136 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4137 } else {
4138 /* It is mandatory by the Bluetooth specification that
4139 * Extended Inquiry Results are only used when Secure
4140 * Simple Pairing is enabled, but some devices violate
4141 * this.
4142 *
4143 * To make these devices work, the internal SSP
4144 * enabled flag needs to be cleared if the remote host
4145 * features do not indicate SSP support */
4146 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4147 }
4148
4149 if (ev->features[0] & LMP_HOST_SC)
4150 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
4151 }
4152
4153 if (conn->state != BT_CONFIG)
4154 goto unlock;
4155
4156 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
4157 struct hci_cp_remote_name_req cp;
4158 memset(&cp, 0, sizeof(cp));
4159 bacpy(&cp.bdaddr, &conn->dst);
4160 cp.pscan_rep_mode = 0x02;
4161 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
4162 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4163 mgmt_device_connected(hdev, conn, 0, NULL, 0);
4164
4165 if (!hci_outgoing_auth_needed(hdev, conn)) {
4166 conn->state = BT_CONNECTED;
4167 hci_connect_cfm(conn, ev->status);
4168 hci_conn_drop(conn);
4169 }
4170
4171unlock:
4172 hci_dev_unlock(hdev);
4173}
4174
4175static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
4176 struct sk_buff *skb)
4177{
4178 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
4179 struct hci_conn *conn;
4180
4181 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4182
4183 hci_dev_lock(hdev);
4184
4185 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
4186 if (!conn) {
4187 if (ev->link_type == ESCO_LINK)
4188 goto unlock;
4189
4190 /* When the link type in the event indicates SCO connection
4191 * and lookup of the connection object fails, then check
4192 * if an eSCO connection object exists.
4193 *
4194 * The core limits the synchronous connections to either
4195 * SCO or eSCO. The eSCO connection is preferred and tried
4196 * to be setup first and until successfully established,
4197 * the link type will be hinted as eSCO.
4198 */
4199 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
4200 if (!conn)
4201 goto unlock;
4202 }
4203
4204 switch (ev->status) {
4205 case 0x00:
4206 conn->handle = __le16_to_cpu(ev->handle);
4207 conn->state = BT_CONNECTED;
4208 conn->type = ev->link_type;
4209
4210 hci_debugfs_create_conn(conn);
4211 hci_conn_add_sysfs(conn);
4212 break;
4213
4214 case 0x10: /* Connection Accept Timeout */
4215 case 0x0d: /* Connection Rejected due to Limited Resources */
4216 case 0x11: /* Unsupported Feature or Parameter Value */
4217 case 0x1c: /* SCO interval rejected */
4218 case 0x1a: /* Unsupported Remote Feature */
4219 case 0x1f: /* Unspecified error */
4220 case 0x20: /* Unsupported LMP Parameter value */
4221 if (conn->out) {
4222 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
4223 (hdev->esco_type & EDR_ESCO_MASK);
4224 if (hci_setup_sync(conn, conn->link->handle))
4225 goto unlock;
4226 }
4227 /* fall through */
4228
4229 default:
4230 conn->state = BT_CLOSED;
4231 break;
4232 }
4233
4234 hci_connect_cfm(conn, ev->status);
4235 if (ev->status)
4236 hci_conn_del(conn);
4237
4238unlock:
4239 hci_dev_unlock(hdev);
4240}
4241
4242static inline size_t eir_get_length(u8 *eir, size_t eir_len)
4243{
4244 size_t parsed = 0;
4245
4246 while (parsed < eir_len) {
4247 u8 field_len = eir[0];
4248
4249 if (field_len == 0)
4250 return parsed;
4251
4252 parsed += field_len + 1;
4253 eir += field_len + 1;
4254 }
4255
4256 return eir_len;
4257}
4258
4259static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
4260 struct sk_buff *skb)
4261{
4262 struct inquiry_data data;
4263 struct extended_inquiry_info *info = (void *) (skb->data + 1);
4264 int num_rsp = *((__u8 *) skb->data);
4265 size_t eir_len;
4266
4267 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
4268
4269 if (!num_rsp)
4270 return;
4271
4272 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
4273 return;
4274
4275 hci_dev_lock(hdev);
4276
4277 for (; num_rsp; num_rsp--, info++) {
4278 u32 flags;
4279 bool name_known;
4280
4281 bacpy(&data.bdaddr, &info->bdaddr);
4282 data.pscan_rep_mode = info->pscan_rep_mode;
4283 data.pscan_period_mode = info->pscan_period_mode;
4284 data.pscan_mode = 0x00;
4285 memcpy(data.dev_class, info->dev_class, 3);
4286 data.clock_offset = info->clock_offset;
4287 data.rssi = info->rssi;
4288 data.ssp_mode = 0x01;
4289
4290 if (hci_dev_test_flag(hdev, HCI_MGMT))
4291 name_known = eir_get_data(info->data,
4292 sizeof(info->data),
4293 EIR_NAME_COMPLETE, NULL);
4294 else
4295 name_known = true;
4296
4297 flags = hci_inquiry_cache_update(hdev, &data, name_known);
4298
4299 eir_len = eir_get_length(info->data, sizeof(info->data));
4300
4301 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4302 info->dev_class, info->rssi,
4303 flags, info->data, eir_len, NULL, 0);
4304 }
4305
4306 hci_dev_unlock(hdev);
4307}
4308
4309static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
4310 struct sk_buff *skb)
4311{
4312 struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
4313 struct hci_conn *conn;
4314
4315 BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status,
4316 __le16_to_cpu(ev->handle));
4317
4318 hci_dev_lock(hdev);
4319
4320 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4321 if (!conn)
4322 goto unlock;
4323
4324 /* For BR/EDR the necessary steps are taken through the
4325 * auth_complete event.
4326 */
4327 if (conn->type != LE_LINK)
4328 goto unlock;
4329
4330 if (!ev->status)
4331 conn->sec_level = conn->pending_sec_level;
4332
4333 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
4334
4335 if (ev->status && conn->state == BT_CONNECTED) {
4336 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
4337 hci_conn_drop(conn);
4338 goto unlock;
4339 }
4340
4341 if (conn->state == BT_CONFIG) {
4342 if (!ev->status)
4343 conn->state = BT_CONNECTED;
4344
4345 hci_connect_cfm(conn, ev->status);
4346 hci_conn_drop(conn);
4347 } else {
4348 hci_auth_cfm(conn, ev->status);
4349
4350 hci_conn_hold(conn);
4351 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4352 hci_conn_drop(conn);
4353 }
4354
4355unlock:
4356 hci_dev_unlock(hdev);
4357}
4358
4359static u8 hci_get_auth_req(struct hci_conn *conn)
4360{
4361 /* If remote requests no-bonding follow that lead */
4362 if (conn->remote_auth == HCI_AT_NO_BONDING ||
4363 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
4364 return conn->remote_auth | (conn->auth_type & 0x01);
4365
4366 /* If both remote and local have enough IO capabilities, require
4367 * MITM protection
4368 */
4369 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
4370 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
4371 return conn->remote_auth | 0x01;
4372
4373 /* No MITM protection possible so ignore remote requirement */
4374 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
4375}
4376
4377static u8 bredr_oob_data_present(struct hci_conn *conn)
4378{
4379 struct hci_dev *hdev = conn->hdev;
4380 struct oob_data *data;
4381
4382 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
4383 if (!data)
4384 return 0x00;
4385
4386 if (bredr_sc_enabled(hdev)) {
4387 /* When Secure Connections is enabled, then just
4388 * return the present value stored with the OOB
4389 * data. The stored value contains the right present
4390 * information. However it can only be trusted when
4391 * not in Secure Connection Only mode.
4392 */
4393 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
4394 return data->present;
4395
4396 /* When Secure Connections Only mode is enabled, then
4397 * the P-256 values are required. If they are not
4398 * available, then do not declare that OOB data is
4399 * present.
4400 */
4401 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
4402 !memcmp(data->hash256, ZERO_KEY, 16))
4403 return 0x00;
4404
4405 return 0x02;
4406 }
4407
4408 /* When Secure Connections is not enabled or actually
4409 * not supported by the hardware, then check that if
4410 * P-192 data values are present.
4411 */
4412 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
4413 !memcmp(data->hash192, ZERO_KEY, 16))
4414 return 0x00;
4415
4416 return 0x01;
4417}
4418
4419static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
4420{
4421 struct hci_ev_io_capa_request *ev = (void *) skb->data;
4422 struct hci_conn *conn;
4423
4424 BT_DBG("%s", hdev->name);
4425
4426 hci_dev_lock(hdev);
4427
4428 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4429 if (!conn)
4430 goto unlock;
4431
4432 hci_conn_hold(conn);
4433
4434 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4435 goto unlock;
4436
4437 /* Allow pairing if we're pairable, the initiators of the
4438 * pairing or if the remote is not requesting bonding.
4439 */
4440 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
4441 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
4442 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
4443 struct hci_cp_io_capability_reply cp;
4444
4445 bacpy(&cp.bdaddr, &ev->bdaddr);
4446 /* Change the IO capability from KeyboardDisplay
4447 * to DisplayYesNo as it is not supported by BT spec. */
4448 cp.capability = (conn->io_capability == 0x04) ?
4449 HCI_IO_DISPLAY_YESNO : conn->io_capability;
4450
4451 /* If we are initiators, there is no remote information yet */
4452 if (conn->remote_auth == 0xff) {
4453 /* Request MITM protection if our IO caps allow it
4454 * except for the no-bonding case.
4455 */
4456 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
4457 conn->auth_type != HCI_AT_NO_BONDING)
4458 conn->auth_type |= 0x01;
4459 } else {
4460 conn->auth_type = hci_get_auth_req(conn);
4461 }
4462
4463 /* If we're not bondable, force one of the non-bondable
4464 * authentication requirement values.
4465 */
4466 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
4467 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
4468
4469 cp.authentication = conn->auth_type;
4470 cp.oob_data = bredr_oob_data_present(conn);
4471
4472 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
4473 sizeof(cp), &cp);
4474 } else {
4475 struct hci_cp_io_capability_neg_reply cp;
4476
4477 bacpy(&cp.bdaddr, &ev->bdaddr);
4478 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
4479
4480 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
4481 sizeof(cp), &cp);
4482 }
4483
4484unlock:
4485 hci_dev_unlock(hdev);
4486}
4487
4488static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
4489{
4490 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
4491 struct hci_conn *conn;
4492
4493 BT_DBG("%s", hdev->name);
4494
4495 hci_dev_lock(hdev);
4496
4497 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4498 if (!conn)
4499 goto unlock;
4500
4501 conn->remote_cap = ev->capability;
4502 conn->remote_auth = ev->authentication;
4503
4504unlock:
4505 hci_dev_unlock(hdev);
4506}
4507
4508static void hci_user_confirm_request_evt(struct hci_dev *hdev,
4509 struct sk_buff *skb)
4510{
4511 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
4512 int loc_mitm, rem_mitm, confirm_hint = 0;
4513 struct hci_conn *conn;
4514
4515 BT_DBG("%s", hdev->name);
4516
4517 hci_dev_lock(hdev);
4518
4519 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4520 goto unlock;
4521
4522 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4523 if (!conn)
4524 goto unlock;
4525
4526 loc_mitm = (conn->auth_type & 0x01);
4527 rem_mitm = (conn->remote_auth & 0x01);
4528
4529 /* If we require MITM but the remote device can't provide that
4530 * (it has NoInputNoOutput) then reject the confirmation
4531 * request. We check the security level here since it doesn't
4532 * necessarily match conn->auth_type.
4533 */
4534 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
4535 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
4536 BT_DBG("Rejecting request: remote device can't provide MITM");
4537 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
4538 sizeof(ev->bdaddr), &ev->bdaddr);
4539 goto unlock;
4540 }
4541
4542 /* If no side requires MITM protection; auto-accept */
4543 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
4544 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
4545
4546 /* If we're not the initiators request authorization to
4547 * proceed from user space (mgmt_user_confirm with
4548 * confirm_hint set to 1). The exception is if neither
4549 * side had MITM or if the local IO capability is
4550 * NoInputNoOutput, in which case we do auto-accept
4551 */
4552 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
4553 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
4554 (loc_mitm || rem_mitm)) {
4555 BT_DBG("Confirming auto-accept as acceptor");
4556 confirm_hint = 1;
4557 goto confirm;
4558 }
4559
4560 BT_DBG("Auto-accept of user confirmation with %ums delay",
4561 hdev->auto_accept_delay);
4562
4563 if (hdev->auto_accept_delay > 0) {
4564 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
4565 queue_delayed_work(conn->hdev->workqueue,
4566 &conn->auto_accept_work, delay);
4567 goto unlock;
4568 }
4569
4570 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
4571 sizeof(ev->bdaddr), &ev->bdaddr);
4572 goto unlock;
4573 }
4574
4575confirm:
4576 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
4577 le32_to_cpu(ev->passkey), confirm_hint);
4578
4579unlock:
4580 hci_dev_unlock(hdev);
4581}
4582
4583static void hci_user_passkey_request_evt(struct hci_dev *hdev,
4584 struct sk_buff *skb)
4585{
4586 struct hci_ev_user_passkey_req *ev = (void *) skb->data;
4587
4588 BT_DBG("%s", hdev->name);
4589
4590 if (hci_dev_test_flag(hdev, HCI_MGMT))
4591 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
4592}
4593
4594static void hci_user_passkey_notify_evt(struct hci_dev *hdev,
4595 struct sk_buff *skb)
4596{
4597 struct hci_ev_user_passkey_notify *ev = (void *) skb->data;
4598 struct hci_conn *conn;
4599
4600 BT_DBG("%s", hdev->name);
4601
4602 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4603 if (!conn)
4604 return;
4605
4606 conn->passkey_notify = __le32_to_cpu(ev->passkey);
4607 conn->passkey_entered = 0;
4608
4609 if (hci_dev_test_flag(hdev, HCI_MGMT))
4610 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4611 conn->dst_type, conn->passkey_notify,
4612 conn->passkey_entered);
4613}
4614
4615static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
4616{
4617 struct hci_ev_keypress_notify *ev = (void *) skb->data;
4618 struct hci_conn *conn;
4619
4620 BT_DBG("%s", hdev->name);
4621
4622 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4623 if (!conn)
4624 return;
4625
4626 switch (ev->type) {
4627 case HCI_KEYPRESS_STARTED:
4628 conn->passkey_entered = 0;
4629 return;
4630
4631 case HCI_KEYPRESS_ENTERED:
4632 conn->passkey_entered++;
4633 break;
4634
4635 case HCI_KEYPRESS_ERASED:
4636 conn->passkey_entered--;
4637 break;
4638
4639 case HCI_KEYPRESS_CLEARED:
4640 conn->passkey_entered = 0;
4641 break;
4642
4643 case HCI_KEYPRESS_COMPLETED:
4644 return;
4645 }
4646
4647 if (hci_dev_test_flag(hdev, HCI_MGMT))
4648 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4649 conn->dst_type, conn->passkey_notify,
4650 conn->passkey_entered);
4651}
4652
4653static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
4654 struct sk_buff *skb)
4655{
4656 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
4657 struct hci_conn *conn;
4658
4659 BT_DBG("%s", hdev->name);
4660
4661 hci_dev_lock(hdev);
4662
4663 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4664 if (!conn)
4665 goto unlock;
4666
4667 /* Reset the authentication requirement to unknown */
4668 conn->remote_auth = 0xff;
4669
4670 /* To avoid duplicate auth_failed events to user space we check
4671 * the HCI_CONN_AUTH_PEND flag which will be set if we
4672 * initiated the authentication. A traditional auth_complete
4673 * event gets always produced as initiator and is also mapped to
4674 * the mgmt_auth_failed event */
4675 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
4676 mgmt_auth_failed(conn, ev->status);
4677
4678 hci_conn_drop(conn);
4679
4680unlock:
4681 hci_dev_unlock(hdev);
4682}
4683
4684static void hci_remote_host_features_evt(struct hci_dev *hdev,
4685 struct sk_buff *skb)
4686{
4687 struct hci_ev_remote_host_features *ev = (void *) skb->data;
4688 struct inquiry_entry *ie;
4689 struct hci_conn *conn;
4690
4691 BT_DBG("%s", hdev->name);
4692
4693 hci_dev_lock(hdev);
4694
4695 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4696 if (conn)
4697 memcpy(conn->features[1], ev->features, 8);
4698
4699 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4700 if (ie)
4701 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4702
4703 hci_dev_unlock(hdev);
4704}
4705
4706static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
4707 struct sk_buff *skb)
4708{
4709 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
4710 struct oob_data *data;
4711
4712 BT_DBG("%s", hdev->name);
4713
4714 hci_dev_lock(hdev);
4715
4716 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4717 goto unlock;
4718
4719 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
4720 if (!data) {
4721 struct hci_cp_remote_oob_data_neg_reply cp;
4722
4723 bacpy(&cp.bdaddr, &ev->bdaddr);
4724 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
4725 sizeof(cp), &cp);
4726 goto unlock;
4727 }
4728
4729 if (bredr_sc_enabled(hdev)) {
4730 struct hci_cp_remote_oob_ext_data_reply cp;
4731
4732 bacpy(&cp.bdaddr, &ev->bdaddr);
4733 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
4734 memset(cp.hash192, 0, sizeof(cp.hash192));
4735 memset(cp.rand192, 0, sizeof(cp.rand192));
4736 } else {
4737 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
4738 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
4739 }
4740 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
4741 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
4742
4743 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
4744 sizeof(cp), &cp);
4745 } else {
4746 struct hci_cp_remote_oob_data_reply cp;
4747
4748 bacpy(&cp.bdaddr, &ev->bdaddr);
4749 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
4750 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
4751
4752 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
4753 sizeof(cp), &cp);
4754 }
4755
4756unlock:
4757 hci_dev_unlock(hdev);
4758}
4759
4760#if IS_ENABLED(CONFIG_BT_HS)
4761static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
4762{
4763 struct hci_ev_channel_selected *ev = (void *)skb->data;
4764 struct hci_conn *hcon;
4765
4766 BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);
4767
4768 skb_pull(skb, sizeof(*ev));
4769
4770 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4771 if (!hcon)
4772 return;
4773
4774 amp_read_loc_assoc_final_data(hdev, hcon);
4775}
4776
4777static void hci_phy_link_complete_evt(struct hci_dev *hdev,
4778 struct sk_buff *skb)
4779{
4780 struct hci_ev_phy_link_complete *ev = (void *) skb->data;
4781 struct hci_conn *hcon, *bredr_hcon;
4782
4783 BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
4784 ev->status);
4785
4786 hci_dev_lock(hdev);
4787
4788 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4789 if (!hcon) {
4790 hci_dev_unlock(hdev);
4791 return;
4792 }
4793
4794 if (ev->status) {
4795 hci_conn_del(hcon);
4796 hci_dev_unlock(hdev);
4797 return;
4798 }
4799
4800 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
4801
4802 hcon->state = BT_CONNECTED;
4803 bacpy(&hcon->dst, &bredr_hcon->dst);
4804
4805 hci_conn_hold(hcon);
4806 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
4807 hci_conn_drop(hcon);
4808
4809 hci_debugfs_create_conn(hcon);
4810 hci_conn_add_sysfs(hcon);
4811
4812 amp_physical_cfm(bredr_hcon, hcon);
4813
4814 hci_dev_unlock(hdev);
4815}
4816
4817static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4818{
4819 struct hci_ev_logical_link_complete *ev = (void *) skb->data;
4820 struct hci_conn *hcon;
4821 struct hci_chan *hchan;
4822 struct amp_mgr *mgr;
4823
4824 BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
4825 hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
4826 ev->status);
4827
4828 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4829 if (!hcon)
4830 return;
4831
4832 /* Create AMP hchan */
4833 hchan = hci_chan_create(hcon);
4834 if (!hchan)
4835 return;
4836
4837 hchan->handle = le16_to_cpu(ev->handle);
4838
4839 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
4840
4841 mgr = hcon->amp_mgr;
4842 if (mgr && mgr->bredr_chan) {
4843 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
4844
4845 l2cap_chan_lock(bredr_chan);
4846
4847 bredr_chan->conn->mtu = hdev->block_mtu;
4848 l2cap_logical_cfm(bredr_chan, hchan, 0);
4849 hci_conn_hold(hcon);
4850
4851 l2cap_chan_unlock(bredr_chan);
4852 }
4853}
4854
4855static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
4856 struct sk_buff *skb)
4857{
4858 struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
4859 struct hci_chan *hchan;
4860
4861 BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
4862 le16_to_cpu(ev->handle), ev->status);
4863
4864 if (ev->status)
4865 return;
4866
4867 hci_dev_lock(hdev);
4868
4869 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
4870 if (!hchan)
4871 goto unlock;
4872
4873 amp_destroy_logical_link(hchan, ev->reason);
4874
4875unlock:
4876 hci_dev_unlock(hdev);
4877}
4878
4879static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
4880 struct sk_buff *skb)
4881{
4882 struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
4883 struct hci_conn *hcon;
4884
4885 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4886
4887 if (ev->status)
4888 return;
4889
4890 hci_dev_lock(hdev);
4891
4892 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4893 if (hcon) {
4894 hcon->state = BT_CLOSED;
4895 hci_conn_del(hcon);
4896 }
4897
4898 hci_dev_unlock(hdev);
4899}
4900#endif
4901
4902static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
4903 bdaddr_t *bdaddr, u8 bdaddr_type, u8 role, u16 handle,
4904 u16 interval, u16 latency, u16 supervision_timeout)
4905{
4906 struct hci_conn_params *params;
4907 struct hci_conn *conn;
4908 struct smp_irk *irk;
4909 u8 addr_type;
4910
4911 hci_dev_lock(hdev);
4912
4913 /* All controllers implicitly stop advertising in the event of a
4914 * connection, so ensure that the state bit is cleared.
4915 */
4916 hci_dev_clear_flag(hdev, HCI_LE_ADV);
4917
4918 conn = hci_lookup_le_connect(hdev);
4919 if (!conn) {
4920 conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
4921 if (!conn) {
4922 bt_dev_err(hdev, "no memory for new connection");
4923 goto unlock;
4924 }
4925
4926 conn->dst_type = bdaddr_type;
4927
4928 /* If we didn't have a hci_conn object previously
4929 * but we're in master role this must be something
4930 * initiated using a white list. Since white list based
4931 * connections are not "first class citizens" we don't
4932 * have full tracking of them. Therefore, we go ahead
4933 * with a "best effort" approach of determining the
4934 * initiator address based on the HCI_PRIVACY flag.
4935 */
4936 if (conn->out) {
4937 conn->resp_addr_type = bdaddr_type;
4938 bacpy(&conn->resp_addr, bdaddr);
4939 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
4940 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
4941 bacpy(&conn->init_addr, &hdev->rpa);
4942 } else {
4943 hci_copy_identity_address(hdev,
4944 &conn->init_addr,
4945 &conn->init_addr_type);
4946 }
4947 }
4948 } else {
4949 cancel_delayed_work(&conn->le_conn_timeout);
4950 }
4951
4952 if (!conn->out) {
4953 /* Set the responder (our side) address type based on
4954 * the advertising address type.
4955 */
4956 conn->resp_addr_type = hdev->adv_addr_type;
4957 if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
4958 /* In case of ext adv, resp_addr will be updated in
4959 * Adv Terminated event.
4960 */
4961 if (!ext_adv_capable(hdev))
4962 bacpy(&conn->resp_addr, &hdev->random_addr);
4963 } else {
4964 bacpy(&conn->resp_addr, &hdev->bdaddr);
4965 }
4966
4967 conn->init_addr_type = bdaddr_type;
4968 bacpy(&conn->init_addr, bdaddr);
4969
4970 /* For incoming connections, set the default minimum
4971 * and maximum connection interval. They will be used
4972 * to check if the parameters are in range and if not
4973 * trigger the connection update procedure.
4974 */
4975 conn->le_conn_min_interval = hdev->le_conn_min_interval;
4976 conn->le_conn_max_interval = hdev->le_conn_max_interval;
4977 }
4978
4979 /* Lookup the identity address from the stored connection
4980 * address and address type.
4981 *
4982 * When establishing connections to an identity address, the
4983 * connection procedure will store the resolvable random
4984 * address first. Now if it can be converted back into the
4985 * identity address, start using the identity address from
4986 * now on.
4987 */
4988 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
4989 if (irk) {
4990 bacpy(&conn->dst, &irk->bdaddr);
4991 conn->dst_type = irk->addr_type;
4992 }
4993
4994 if (status) {
4995 hci_le_conn_failed(conn, status);
4996 goto unlock;
4997 }
4998
4999 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
5000 addr_type = BDADDR_LE_PUBLIC;
5001 else
5002 addr_type = BDADDR_LE_RANDOM;
5003
5004 /* Drop the connection if the device is blocked */
5005 if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) {
5006 hci_conn_drop(conn);
5007 goto unlock;
5008 }
5009
5010 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
5011 mgmt_device_connected(hdev, conn, 0, NULL, 0);
5012
5013 conn->sec_level = BT_SECURITY_LOW;
5014 conn->handle = handle;
5015 conn->state = BT_CONFIG;
5016
5017 conn->le_conn_interval = interval;
5018 conn->le_conn_latency = latency;
5019 conn->le_supv_timeout = supervision_timeout;
5020
5021 hci_debugfs_create_conn(conn);
5022 hci_conn_add_sysfs(conn);
5023
5024 /* The remote features procedure is defined for master
5025 * role only. So only in case of an initiated connection
5026 * request the remote features.
5027 *
5028 * If the local controller supports slave-initiated features
5029 * exchange, then requesting the remote features in slave
5030 * role is possible. Otherwise just transition into the
5031 * connected state without requesting the remote features.
5032 */
5033 if (conn->out ||
5034 (hdev->le_features[0] & HCI_LE_SLAVE_FEATURES)) {
5035 struct hci_cp_le_read_remote_features cp;
5036
5037 cp.handle = __cpu_to_le16(conn->handle);
5038
5039 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
5040 sizeof(cp), &cp);
5041
5042 hci_conn_hold(conn);
5043 } else {
5044 conn->state = BT_CONNECTED;
5045 hci_connect_cfm(conn, status);
5046 }
5047
5048 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
5049 conn->dst_type);
5050 if (params) {
5051 list_del_init(¶ms->action);
5052 if (params->conn) {
5053 hci_conn_drop(params->conn);
5054 hci_conn_put(params->conn);
5055 params->conn = NULL;
5056 }
5057 }
5058
5059unlock:
5060 hci_update_background_scan(hdev);
5061 hci_dev_unlock(hdev);
5062}
5063
5064static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
5065{
5066 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
5067
5068 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
5069
5070 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
5071 ev->role, le16_to_cpu(ev->handle),
5072 le16_to_cpu(ev->interval),
5073 le16_to_cpu(ev->latency),
5074 le16_to_cpu(ev->supervision_timeout));
5075}
5076
5077static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev,
5078 struct sk_buff *skb)
5079{
5080 struct hci_ev_le_enh_conn_complete *ev = (void *) skb->data;
5081
5082 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
5083
5084 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
5085 ev->role, le16_to_cpu(ev->handle),
5086 le16_to_cpu(ev->interval),
5087 le16_to_cpu(ev->latency),
5088 le16_to_cpu(ev->supervision_timeout));
5089}
5090
5091static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, struct sk_buff *skb)
5092{
5093 struct hci_evt_le_ext_adv_set_term *ev = (void *) skb->data;
5094 struct hci_conn *conn;
5095
5096 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
5097
5098 if (ev->status)
5099 return;
5100
5101 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
5102 if (conn) {
5103 struct adv_info *adv_instance;
5104
5105 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM)
5106 return;
5107
5108 if (!hdev->cur_adv_instance) {
5109 bacpy(&conn->resp_addr, &hdev->random_addr);
5110 return;
5111 }
5112
5113 adv_instance = hci_find_adv_instance(hdev, hdev->cur_adv_instance);
5114 if (adv_instance)
5115 bacpy(&conn->resp_addr, &adv_instance->random_addr);
5116 }
5117}
5118
5119static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
5120 struct sk_buff *skb)
5121{
5122 struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
5123 struct hci_conn *conn;
5124
5125 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
5126
5127 if (ev->status)
5128 return;
5129
5130 hci_dev_lock(hdev);
5131
5132 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5133 if (conn) {
5134 conn->le_conn_interval = le16_to_cpu(ev->interval);
5135 conn->le_conn_latency = le16_to_cpu(ev->latency);
5136 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
5137 }
5138
5139 hci_dev_unlock(hdev);
5140}
5141
5142/* This function requires the caller holds hdev->lock */
5143static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
5144 bdaddr_t *addr,
5145 u8 addr_type, u8 adv_type,
5146 bdaddr_t *direct_rpa)
5147{
5148 struct hci_conn *conn;
5149 struct hci_conn_params *params;
5150
5151 /* If the event is not connectable don't proceed further */
5152 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
5153 return NULL;
5154
5155 /* Ignore if the device is blocked */
5156 if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type))
5157 return NULL;
5158
5159 /* Most controller will fail if we try to create new connections
5160 * while we have an existing one in slave role.
5161 */
5162 if (hdev->conn_hash.le_num_slave > 0)
5163 return NULL;
5164
5165 /* If we're not connectable only connect devices that we have in
5166 * our pend_le_conns list.
5167 */
5168 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
5169 addr_type);
5170 if (!params)
5171 return NULL;
5172
5173 if (!params->explicit_connect) {
5174 switch (params->auto_connect) {
5175 case HCI_AUTO_CONN_DIRECT:
5176 /* Only devices advertising with ADV_DIRECT_IND are
5177 * triggering a connection attempt. This is allowing
5178 * incoming connections from slave devices.
5179 */
5180 if (adv_type != LE_ADV_DIRECT_IND)
5181 return NULL;
5182 break;
5183 case HCI_AUTO_CONN_ALWAYS:
5184 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
5185 * are triggering a connection attempt. This means
5186 * that incoming connectioms from slave device are
5187 * accepted and also outgoing connections to slave
5188 * devices are established when found.
5189 */
5190 break;
5191 default:
5192 return NULL;
5193 }
5194 }
5195
5196 conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
5197 HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER,
5198 direct_rpa);
5199 if (!IS_ERR(conn)) {
5200 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
5201 * by higher layer that tried to connect, if no then
5202 * store the pointer since we don't really have any
5203 * other owner of the object besides the params that
5204 * triggered it. This way we can abort the connection if
5205 * the parameters get removed and keep the reference
5206 * count consistent once the connection is established.
5207 */
5208
5209 if (!params->explicit_connect)
5210 params->conn = hci_conn_get(conn);
5211
5212 return conn;
5213 }
5214
5215 switch (PTR_ERR(conn)) {
5216 case -EBUSY:
5217 /* If hci_connect() returns -EBUSY it means there is already
5218 * an LE connection attempt going on. Since controllers don't
5219 * support more than one connection attempt at the time, we
5220 * don't consider this an error case.
5221 */
5222 break;
5223 default:
5224 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
5225 return NULL;
5226 }
5227
5228 return NULL;
5229}
5230
5231static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
5232 u8 bdaddr_type, bdaddr_t *direct_addr,
5233 u8 direct_addr_type, s8 rssi, u8 *data, u8 len)
5234{
5235 struct discovery_state *d = &hdev->discovery;
5236 struct smp_irk *irk;
5237 struct hci_conn *conn;
5238 bool match;
5239 u32 flags;
5240 u8 *ptr, real_len;
5241
5242 switch (type) {
5243 case LE_ADV_IND:
5244 case LE_ADV_DIRECT_IND:
5245 case LE_ADV_SCAN_IND:
5246 case LE_ADV_NONCONN_IND:
5247 case LE_ADV_SCAN_RSP:
5248 break;
5249 default:
5250 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
5251 "type: 0x%02x", type);
5252 return;
5253 }
5254
5255 /* Find the end of the data in case the report contains padded zero
5256 * bytes at the end causing an invalid length value.
5257 *
5258 * When data is NULL, len is 0 so there is no need for extra ptr
5259 * check as 'ptr < data + 0' is already false in such case.
5260 */
5261 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
5262 if (ptr + 1 + *ptr > data + len)
5263 break;
5264 }
5265
5266 real_len = ptr - data;
5267
5268 /* Adjust for actual length */
5269 if (len != real_len) {
5270 bt_dev_err_ratelimited(hdev, "advertising data len corrected");
5271 len = real_len;
5272 }
5273
5274 /* If the direct address is present, then this report is from
5275 * a LE Direct Advertising Report event. In that case it is
5276 * important to see if the address is matching the local
5277 * controller address.
5278 */
5279 if (direct_addr) {
5280 /* Only resolvable random addresses are valid for these
5281 * kind of reports and others can be ignored.
5282 */
5283 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
5284 return;
5285
5286 /* If the controller is not using resolvable random
5287 * addresses, then this report can be ignored.
5288 */
5289 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
5290 return;
5291
5292 /* If the local IRK of the controller does not match
5293 * with the resolvable random address provided, then
5294 * this report can be ignored.
5295 */
5296 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
5297 return;
5298 }
5299
5300 /* Check if we need to convert to identity address */
5301 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
5302 if (irk) {
5303 bdaddr = &irk->bdaddr;
5304 bdaddr_type = irk->addr_type;
5305 }
5306
5307 /* Check if we have been requested to connect to this device.
5308 *
5309 * direct_addr is set only for directed advertising reports (it is NULL
5310 * for advertising reports) and is already verified to be RPA above.
5311 */
5312 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, type,
5313 direct_addr);
5314 if (conn && type == LE_ADV_IND) {
5315 /* Store report for later inclusion by
5316 * mgmt_device_connected
5317 */
5318 memcpy(conn->le_adv_data, data, len);
5319 conn->le_adv_data_len = len;
5320 }
5321
5322 /* Passive scanning shouldn't trigger any device found events,
5323 * except for devices marked as CONN_REPORT for which we do send
5324 * device found events.
5325 */
5326 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
5327 if (type == LE_ADV_DIRECT_IND)
5328 return;
5329
5330 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
5331 bdaddr, bdaddr_type))
5332 return;
5333
5334 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
5335 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
5336 else
5337 flags = 0;
5338 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
5339 rssi, flags, data, len, NULL, 0);
5340 return;
5341 }
5342
5343 /* When receiving non-connectable or scannable undirected
5344 * advertising reports, this means that the remote device is
5345 * not connectable and then clearly indicate this in the
5346 * device found event.
5347 *
5348 * When receiving a scan response, then there is no way to
5349 * know if the remote device is connectable or not. However
5350 * since scan responses are merged with a previously seen
5351 * advertising report, the flags field from that report
5352 * will be used.
5353 *
5354 * In the really unlikely case that a controller get confused
5355 * and just sends a scan response event, then it is marked as
5356 * not connectable as well.
5357 */
5358 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND ||
5359 type == LE_ADV_SCAN_RSP)
5360 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
5361 else
5362 flags = 0;
5363
5364 /* If there's nothing pending either store the data from this
5365 * event or send an immediate device found event if the data
5366 * should not be stored for later.
5367 */
5368 if (!has_pending_adv_report(hdev)) {
5369 /* If the report will trigger a SCAN_REQ store it for
5370 * later merging.
5371 */
5372 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
5373 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
5374 rssi, flags, data, len);
5375 return;
5376 }
5377
5378 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
5379 rssi, flags, data, len, NULL, 0);
5380 return;
5381 }
5382
5383 /* Check if the pending report is for the same device as the new one */
5384 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
5385 bdaddr_type == d->last_adv_addr_type);
5386
5387 /* If the pending data doesn't match this report or this isn't a
5388 * scan response (e.g. we got a duplicate ADV_IND) then force
5389 * sending of the pending data.
5390 */
5391 if (type != LE_ADV_SCAN_RSP || !match) {
5392 /* Send out whatever is in the cache, but skip duplicates */
5393 if (!match)
5394 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
5395 d->last_adv_addr_type, NULL,
5396 d->last_adv_rssi, d->last_adv_flags,
5397 d->last_adv_data,
5398 d->last_adv_data_len, NULL, 0);
5399
5400 /* If the new report will trigger a SCAN_REQ store it for
5401 * later merging.
5402 */
5403 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
5404 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
5405 rssi, flags, data, len);
5406 return;
5407 }
5408
5409 /* The advertising reports cannot be merged, so clear
5410 * the pending report and send out a device found event.
5411 */
5412 clear_pending_adv_report(hdev);
5413 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
5414 rssi, flags, data, len, NULL, 0);
5415 return;
5416 }
5417
5418 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
5419 * the new event is a SCAN_RSP. We can therefore proceed with
5420 * sending a merged device found event.
5421 */
5422 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
5423 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
5424 d->last_adv_data, d->last_adv_data_len, data, len);
5425 clear_pending_adv_report(hdev);
5426}
5427
5428static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
5429{
5430 u8 num_reports = skb->data[0];
5431 void *ptr = &skb->data[1];
5432
5433 hci_dev_lock(hdev);
5434
5435 while (num_reports--) {
5436 struct hci_ev_le_advertising_info *ev = ptr;
5437 s8 rssi;
5438
5439 if (ev->length <= HCI_MAX_AD_LENGTH) {
5440 rssi = ev->data[ev->length];
5441 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
5442 ev->bdaddr_type, NULL, 0, rssi,
5443 ev->data, ev->length);
5444 } else {
5445 bt_dev_err(hdev, "Dropping invalid advertising data");
5446 }
5447
5448 ptr += sizeof(*ev) + ev->length + 1;
5449 }
5450
5451 hci_dev_unlock(hdev);
5452}
5453
5454static u8 ext_evt_type_to_legacy(u16 evt_type)
5455{
5456 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
5457 switch (evt_type) {
5458 case LE_LEGACY_ADV_IND:
5459 return LE_ADV_IND;
5460 case LE_LEGACY_ADV_DIRECT_IND:
5461 return LE_ADV_DIRECT_IND;
5462 case LE_LEGACY_ADV_SCAN_IND:
5463 return LE_ADV_SCAN_IND;
5464 case LE_LEGACY_NONCONN_IND:
5465 return LE_ADV_NONCONN_IND;
5466 case LE_LEGACY_SCAN_RSP_ADV:
5467 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
5468 return LE_ADV_SCAN_RSP;
5469 }
5470
5471 BT_ERR_RATELIMITED("Unknown advertising packet type: 0x%02x",
5472 evt_type);
5473
5474 return LE_ADV_INVALID;
5475 }
5476
5477 if (evt_type & LE_EXT_ADV_CONN_IND) {
5478 if (evt_type & LE_EXT_ADV_DIRECT_IND)
5479 return LE_ADV_DIRECT_IND;
5480
5481 return LE_ADV_IND;
5482 }
5483
5484 if (evt_type & LE_EXT_ADV_SCAN_RSP)
5485 return LE_ADV_SCAN_RSP;
5486
5487 if (evt_type & LE_EXT_ADV_SCAN_IND)
5488 return LE_ADV_SCAN_IND;
5489
5490 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
5491 evt_type & LE_EXT_ADV_DIRECT_IND)
5492 return LE_ADV_NONCONN_IND;
5493
5494 BT_ERR_RATELIMITED("Unknown advertising packet type: 0x%02x",
5495 evt_type);
5496
5497 return LE_ADV_INVALID;
5498}
5499
5500static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
5501{
5502 u8 num_reports = skb->data[0];
5503 void *ptr = &skb->data[1];
5504
5505 hci_dev_lock(hdev);
5506
5507 while (num_reports--) {
5508 struct hci_ev_le_ext_adv_report *ev = ptr;
5509 u8 legacy_evt_type;
5510 u16 evt_type;
5511
5512 evt_type = __le16_to_cpu(ev->evt_type);
5513 legacy_evt_type = ext_evt_type_to_legacy(evt_type);
5514 if (legacy_evt_type != LE_ADV_INVALID) {
5515 process_adv_report(hdev, legacy_evt_type, &ev->bdaddr,
5516 ev->bdaddr_type, NULL, 0, ev->rssi,
5517 ev->data, ev->length);
5518 }
5519
5520 ptr += sizeof(*ev) + ev->length;
5521 }
5522
5523 hci_dev_unlock(hdev);
5524}
5525
5526static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev,
5527 struct sk_buff *skb)
5528{
5529 struct hci_ev_le_remote_feat_complete *ev = (void *)skb->data;
5530 struct hci_conn *conn;
5531
5532 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
5533
5534 hci_dev_lock(hdev);
5535
5536 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5537 if (conn) {
5538 if (!ev->status)
5539 memcpy(conn->features[0], ev->features, 8);
5540
5541 if (conn->state == BT_CONFIG) {
5542 __u8 status;
5543
5544 /* If the local controller supports slave-initiated
5545 * features exchange, but the remote controller does
5546 * not, then it is possible that the error code 0x1a
5547 * for unsupported remote feature gets returned.
5548 *
5549 * In this specific case, allow the connection to
5550 * transition into connected state and mark it as
5551 * successful.
5552 */
5553 if ((hdev->le_features[0] & HCI_LE_SLAVE_FEATURES) &&
5554 !conn->out && ev->status == 0x1a)
5555 status = 0x00;
5556 else
5557 status = ev->status;
5558
5559 conn->state = BT_CONNECTED;
5560 hci_connect_cfm(conn, status);
5561 hci_conn_drop(conn);
5562 }
5563 }
5564
5565 hci_dev_unlock(hdev);
5566}
5567
5568static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
5569{
5570 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
5571 struct hci_cp_le_ltk_reply cp;
5572 struct hci_cp_le_ltk_neg_reply neg;
5573 struct hci_conn *conn;
5574 struct smp_ltk *ltk;
5575
5576 BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle));
5577
5578 hci_dev_lock(hdev);
5579
5580 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5581 if (conn == NULL)
5582 goto not_found;
5583
5584 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
5585 if (!ltk)
5586 goto not_found;
5587
5588 if (smp_ltk_is_sc(ltk)) {
5589 /* With SC both EDiv and Rand are set to zero */
5590 if (ev->ediv || ev->rand)
5591 goto not_found;
5592 } else {
5593 /* For non-SC keys check that EDiv and Rand match */
5594 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
5595 goto not_found;
5596 }
5597
5598 memcpy(cp.ltk, ltk->val, ltk->enc_size);
5599 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
5600 cp.handle = cpu_to_le16(conn->handle);
5601
5602 conn->pending_sec_level = smp_ltk_sec_level(ltk);
5603
5604 conn->enc_key_size = ltk->enc_size;
5605
5606 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
5607
5608 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
5609 * temporary key used to encrypt a connection following
5610 * pairing. It is used during the Encrypted Session Setup to
5611 * distribute the keys. Later, security can be re-established
5612 * using a distributed LTK.
5613 */
5614 if (ltk->type == SMP_STK) {
5615 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
5616 list_del_rcu(<k->list);
5617 kfree_rcu(ltk, rcu);
5618 } else {
5619 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
5620 }
5621
5622 hci_dev_unlock(hdev);
5623
5624 return;
5625
5626not_found:
5627 neg.handle = ev->handle;
5628 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
5629 hci_dev_unlock(hdev);
5630}
5631
5632static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
5633 u8 reason)
5634{
5635 struct hci_cp_le_conn_param_req_neg_reply cp;
5636
5637 cp.handle = cpu_to_le16(handle);
5638 cp.reason = reason;
5639
5640 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
5641 &cp);
5642}
5643
5644static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
5645 struct sk_buff *skb)
5646{
5647 struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data;
5648 struct hci_cp_le_conn_param_req_reply cp;
5649 struct hci_conn *hcon;
5650 u16 handle, min, max, latency, timeout;
5651
5652 handle = le16_to_cpu(ev->handle);
5653 min = le16_to_cpu(ev->interval_min);
5654 max = le16_to_cpu(ev->interval_max);
5655 latency = le16_to_cpu(ev->latency);
5656 timeout = le16_to_cpu(ev->timeout);
5657
5658 hcon = hci_conn_hash_lookup_handle(hdev, handle);
5659 if (!hcon || hcon->state != BT_CONNECTED)
5660 return send_conn_param_neg_reply(hdev, handle,
5661 HCI_ERROR_UNKNOWN_CONN_ID);
5662
5663 if (hci_check_conn_params(min, max, latency, timeout))
5664 return send_conn_param_neg_reply(hdev, handle,
5665 HCI_ERROR_INVALID_LL_PARAMS);
5666
5667 if (hcon->role == HCI_ROLE_MASTER) {
5668 struct hci_conn_params *params;
5669 u8 store_hint;
5670
5671 hci_dev_lock(hdev);
5672
5673 params = hci_conn_params_lookup(hdev, &hcon->dst,
5674 hcon->dst_type);
5675 if (params) {
5676 params->conn_min_interval = min;
5677 params->conn_max_interval = max;
5678 params->conn_latency = latency;
5679 params->supervision_timeout = timeout;
5680 store_hint = 0x01;
5681 } else{
5682 store_hint = 0x00;
5683 }
5684
5685 hci_dev_unlock(hdev);
5686
5687 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
5688 store_hint, min, max, latency, timeout);
5689 }
5690
5691 cp.handle = ev->handle;
5692 cp.interval_min = ev->interval_min;
5693 cp.interval_max = ev->interval_max;
5694 cp.latency = ev->latency;
5695 cp.timeout = ev->timeout;
5696 cp.min_ce_len = 0;
5697 cp.max_ce_len = 0;
5698
5699 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
5700}
5701
5702static void hci_le_direct_adv_report_evt(struct hci_dev *hdev,
5703 struct sk_buff *skb)
5704{
5705 u8 num_reports = skb->data[0];
5706 void *ptr = &skb->data[1];
5707
5708 hci_dev_lock(hdev);
5709
5710 while (num_reports--) {
5711 struct hci_ev_le_direct_adv_info *ev = ptr;
5712
5713 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
5714 ev->bdaddr_type, &ev->direct_addr,
5715 ev->direct_addr_type, ev->rssi, NULL, 0);
5716
5717 ptr += sizeof(*ev);
5718 }
5719
5720 hci_dev_unlock(hdev);
5721}
5722
5723static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
5724{
5725 struct hci_ev_le_meta *le_ev = (void *) skb->data;
5726
5727 skb_pull(skb, sizeof(*le_ev));
5728
5729 switch (le_ev->subevent) {
5730 case HCI_EV_LE_CONN_COMPLETE:
5731 hci_le_conn_complete_evt(hdev, skb);
5732 break;
5733
5734 case HCI_EV_LE_CONN_UPDATE_COMPLETE:
5735 hci_le_conn_update_complete_evt(hdev, skb);
5736 break;
5737
5738 case HCI_EV_LE_ADVERTISING_REPORT:
5739 hci_le_adv_report_evt(hdev, skb);
5740 break;
5741
5742 case HCI_EV_LE_REMOTE_FEAT_COMPLETE:
5743 hci_le_remote_feat_complete_evt(hdev, skb);
5744 break;
5745
5746 case HCI_EV_LE_LTK_REQ:
5747 hci_le_ltk_request_evt(hdev, skb);
5748 break;
5749
5750 case HCI_EV_LE_REMOTE_CONN_PARAM_REQ:
5751 hci_le_remote_conn_param_req_evt(hdev, skb);
5752 break;
5753
5754 case HCI_EV_LE_DIRECT_ADV_REPORT:
5755 hci_le_direct_adv_report_evt(hdev, skb);
5756 break;
5757
5758 case HCI_EV_LE_EXT_ADV_REPORT:
5759 hci_le_ext_adv_report_evt(hdev, skb);
5760 break;
5761
5762 case HCI_EV_LE_ENHANCED_CONN_COMPLETE:
5763 hci_le_enh_conn_complete_evt(hdev, skb);
5764 break;
5765
5766 case HCI_EV_LE_EXT_ADV_SET_TERM:
5767 hci_le_ext_adv_term_evt(hdev, skb);
5768 break;
5769
5770 default:
5771 break;
5772 }
5773}
5774
5775static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
5776 u8 event, struct sk_buff *skb)
5777{
5778 struct hci_ev_cmd_complete *ev;
5779 struct hci_event_hdr *hdr;
5780
5781 if (!skb)
5782 return false;
5783
5784 if (skb->len < sizeof(*hdr)) {
5785 bt_dev_err(hdev, "too short HCI event");
5786 return false;
5787 }
5788
5789 hdr = (void *) skb->data;
5790 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5791
5792 if (event) {
5793 if (hdr->evt != event)
5794 return false;
5795 return true;
5796 }
5797
5798 /* Check if request ended in Command Status - no way to retreive
5799 * any extra parameters in this case.
5800 */
5801 if (hdr->evt == HCI_EV_CMD_STATUS)
5802 return false;
5803
5804 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
5805 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
5806 hdr->evt);
5807 return false;
5808 }
5809
5810 if (skb->len < sizeof(*ev)) {
5811 bt_dev_err(hdev, "too short cmd_complete event");
5812 return false;
5813 }
5814
5815 ev = (void *) skb->data;
5816 skb_pull(skb, sizeof(*ev));
5817
5818 if (opcode != __le16_to_cpu(ev->opcode)) {
5819 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
5820 __le16_to_cpu(ev->opcode));
5821 return false;
5822 }
5823
5824 return true;
5825}
5826
5827void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
5828{
5829 struct hci_event_hdr *hdr = (void *) skb->data;
5830 hci_req_complete_t req_complete = NULL;
5831 hci_req_complete_skb_t req_complete_skb = NULL;
5832 struct sk_buff *orig_skb = NULL;
5833 u8 status = 0, event = hdr->evt, req_evt = 0;
5834 u16 opcode = HCI_OP_NOP;
5835
5836 if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->hci.req_event == event) {
5837 struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
5838 opcode = __le16_to_cpu(cmd_hdr->opcode);
5839 hci_req_cmd_complete(hdev, opcode, status, &req_complete,
5840 &req_complete_skb);
5841 req_evt = event;
5842 }
5843
5844 /* If it looks like we might end up having to call
5845 * req_complete_skb, store a pristine copy of the skb since the
5846 * various handlers may modify the original one through
5847 * skb_pull() calls, etc.
5848 */
5849 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
5850 event == HCI_EV_CMD_COMPLETE)
5851 orig_skb = skb_clone(skb, GFP_KERNEL);
5852
5853 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5854
5855 switch (event) {
5856 case HCI_EV_INQUIRY_COMPLETE:
5857 hci_inquiry_complete_evt(hdev, skb);
5858 break;
5859
5860 case HCI_EV_INQUIRY_RESULT:
5861 hci_inquiry_result_evt(hdev, skb);
5862 break;
5863
5864 case HCI_EV_CONN_COMPLETE:
5865 hci_conn_complete_evt(hdev, skb);
5866 break;
5867
5868 case HCI_EV_CONN_REQUEST:
5869 hci_conn_request_evt(hdev, skb);
5870 break;
5871
5872 case HCI_EV_DISCONN_COMPLETE:
5873 hci_disconn_complete_evt(hdev, skb);
5874 break;
5875
5876 case HCI_EV_AUTH_COMPLETE:
5877 hci_auth_complete_evt(hdev, skb);
5878 break;
5879
5880 case HCI_EV_REMOTE_NAME:
5881 hci_remote_name_evt(hdev, skb);
5882 break;
5883
5884 case HCI_EV_ENCRYPT_CHANGE:
5885 hci_encrypt_change_evt(hdev, skb);
5886 break;
5887
5888 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
5889 hci_change_link_key_complete_evt(hdev, skb);
5890 break;
5891
5892 case HCI_EV_REMOTE_FEATURES:
5893 hci_remote_features_evt(hdev, skb);
5894 break;
5895
5896 case HCI_EV_CMD_COMPLETE:
5897 hci_cmd_complete_evt(hdev, skb, &opcode, &status,
5898 &req_complete, &req_complete_skb);
5899 break;
5900
5901 case HCI_EV_CMD_STATUS:
5902 hci_cmd_status_evt(hdev, skb, &opcode, &status, &req_complete,
5903 &req_complete_skb);
5904 break;
5905
5906 case HCI_EV_HARDWARE_ERROR:
5907 hci_hardware_error_evt(hdev, skb);
5908 break;
5909
5910 case HCI_EV_ROLE_CHANGE:
5911 hci_role_change_evt(hdev, skb);
5912 break;
5913
5914 case HCI_EV_NUM_COMP_PKTS:
5915 hci_num_comp_pkts_evt(hdev, skb);
5916 break;
5917
5918 case HCI_EV_MODE_CHANGE:
5919 hci_mode_change_evt(hdev, skb);
5920 break;
5921
5922 case HCI_EV_PIN_CODE_REQ:
5923 hci_pin_code_request_evt(hdev, skb);
5924 break;
5925
5926 case HCI_EV_LINK_KEY_REQ:
5927 hci_link_key_request_evt(hdev, skb);
5928 break;
5929
5930 case HCI_EV_LINK_KEY_NOTIFY:
5931 hci_link_key_notify_evt(hdev, skb);
5932 break;
5933
5934 case HCI_EV_CLOCK_OFFSET:
5935 hci_clock_offset_evt(hdev, skb);
5936 break;
5937
5938 case HCI_EV_PKT_TYPE_CHANGE:
5939 hci_pkt_type_change_evt(hdev, skb);
5940 break;
5941
5942 case HCI_EV_PSCAN_REP_MODE:
5943 hci_pscan_rep_mode_evt(hdev, skb);
5944 break;
5945
5946 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
5947 hci_inquiry_result_with_rssi_evt(hdev, skb);
5948 break;
5949
5950 case HCI_EV_REMOTE_EXT_FEATURES:
5951 hci_remote_ext_features_evt(hdev, skb);
5952 break;
5953
5954 case HCI_EV_SYNC_CONN_COMPLETE:
5955 hci_sync_conn_complete_evt(hdev, skb);
5956 break;
5957
5958 case HCI_EV_EXTENDED_INQUIRY_RESULT:
5959 hci_extended_inquiry_result_evt(hdev, skb);
5960 break;
5961
5962 case HCI_EV_KEY_REFRESH_COMPLETE:
5963 hci_key_refresh_complete_evt(hdev, skb);
5964 break;
5965
5966 case HCI_EV_IO_CAPA_REQUEST:
5967 hci_io_capa_request_evt(hdev, skb);
5968 break;
5969
5970 case HCI_EV_IO_CAPA_REPLY:
5971 hci_io_capa_reply_evt(hdev, skb);
5972 break;
5973
5974 case HCI_EV_USER_CONFIRM_REQUEST:
5975 hci_user_confirm_request_evt(hdev, skb);
5976 break;
5977
5978 case HCI_EV_USER_PASSKEY_REQUEST:
5979 hci_user_passkey_request_evt(hdev, skb);
5980 break;
5981
5982 case HCI_EV_USER_PASSKEY_NOTIFY:
5983 hci_user_passkey_notify_evt(hdev, skb);
5984 break;
5985
5986 case HCI_EV_KEYPRESS_NOTIFY:
5987 hci_keypress_notify_evt(hdev, skb);
5988 break;
5989
5990 case HCI_EV_SIMPLE_PAIR_COMPLETE:
5991 hci_simple_pair_complete_evt(hdev, skb);
5992 break;
5993
5994 case HCI_EV_REMOTE_HOST_FEATURES:
5995 hci_remote_host_features_evt(hdev, skb);
5996 break;
5997
5998 case HCI_EV_LE_META:
5999 hci_le_meta_evt(hdev, skb);
6000 break;
6001
6002 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
6003 hci_remote_oob_data_request_evt(hdev, skb);
6004 break;
6005
6006#if IS_ENABLED(CONFIG_BT_HS)
6007 case HCI_EV_CHANNEL_SELECTED:
6008 hci_chan_selected_evt(hdev, skb);
6009 break;
6010
6011 case HCI_EV_PHY_LINK_COMPLETE:
6012 hci_phy_link_complete_evt(hdev, skb);
6013 break;
6014
6015 case HCI_EV_LOGICAL_LINK_COMPLETE:
6016 hci_loglink_complete_evt(hdev, skb);
6017 break;
6018
6019 case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
6020 hci_disconn_loglink_complete_evt(hdev, skb);
6021 break;
6022
6023 case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
6024 hci_disconn_phylink_complete_evt(hdev, skb);
6025 break;
6026#endif
6027
6028 case HCI_EV_NUM_COMP_BLOCKS:
6029 hci_num_comp_blocks_evt(hdev, skb);
6030 break;
6031
6032 default:
6033 BT_DBG("%s event 0x%2.2x", hdev->name, event);
6034 break;
6035 }
6036
6037 if (req_complete) {
6038 req_complete(hdev, status, opcode);
6039 } else if (req_complete_skb) {
6040 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
6041 kfree_skb(orig_skb);
6042 orig_skb = NULL;
6043 }
6044 req_complete_skb(hdev, status, opcode, orig_skb);
6045 }
6046
6047 kfree_skb(orig_skb);
6048 kfree_skb(skb);
6049 hdev->stat.evt_rx++;
6050}
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 <linux/notifier.h>
39#include <net/sock.h>
40
41#include <asm/system.h>
42#include <linux/uaccess.h>
43#include <asm/unaligned.h>
44
45#include <net/bluetooth/bluetooth.h>
46#include <net/bluetooth/hci_core.h>
47
48static int enable_le;
49
50/* Handle HCI Event packets */
51
52static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
53{
54 __u8 status = *((__u8 *) skb->data);
55
56 BT_DBG("%s status 0x%x", hdev->name, status);
57
58 if (status)
59 return;
60
61 if (test_and_clear_bit(HCI_INQUIRY, &hdev->flags) &&
62 test_bit(HCI_MGMT, &hdev->flags))
63 mgmt_discovering(hdev->id, 0);
64
65 hci_req_complete(hdev, HCI_OP_INQUIRY_CANCEL, status);
66
67 hci_conn_check_pending(hdev);
68}
69
70static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
71{
72 __u8 status = *((__u8 *) skb->data);
73
74 BT_DBG("%s status 0x%x", hdev->name, status);
75
76 if (status)
77 return;
78
79 if (test_and_clear_bit(HCI_INQUIRY, &hdev->flags) &&
80 test_bit(HCI_MGMT, &hdev->flags))
81 mgmt_discovering(hdev->id, 0);
82
83 hci_conn_check_pending(hdev);
84}
85
86static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev, struct sk_buff *skb)
87{
88 BT_DBG("%s", hdev->name);
89}
90
91static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
92{
93 struct hci_rp_role_discovery *rp = (void *) skb->data;
94 struct hci_conn *conn;
95
96 BT_DBG("%s status 0x%x", hdev->name, rp->status);
97
98 if (rp->status)
99 return;
100
101 hci_dev_lock(hdev);
102
103 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
104 if (conn) {
105 if (rp->role)
106 conn->link_mode &= ~HCI_LM_MASTER;
107 else
108 conn->link_mode |= HCI_LM_MASTER;
109 }
110
111 hci_dev_unlock(hdev);
112}
113
114static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
115{
116 struct hci_rp_read_link_policy *rp = (void *) skb->data;
117 struct hci_conn *conn;
118
119 BT_DBG("%s status 0x%x", hdev->name, rp->status);
120
121 if (rp->status)
122 return;
123
124 hci_dev_lock(hdev);
125
126 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
127 if (conn)
128 conn->link_policy = __le16_to_cpu(rp->policy);
129
130 hci_dev_unlock(hdev);
131}
132
133static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
134{
135 struct hci_rp_write_link_policy *rp = (void *) skb->data;
136 struct hci_conn *conn;
137 void *sent;
138
139 BT_DBG("%s status 0x%x", hdev->name, rp->status);
140
141 if (rp->status)
142 return;
143
144 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
145 if (!sent)
146 return;
147
148 hci_dev_lock(hdev);
149
150 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
151 if (conn)
152 conn->link_policy = get_unaligned_le16(sent + 2);
153
154 hci_dev_unlock(hdev);
155}
156
157static void hci_cc_read_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
158{
159 struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
160
161 BT_DBG("%s status 0x%x", hdev->name, rp->status);
162
163 if (rp->status)
164 return;
165
166 hdev->link_policy = __le16_to_cpu(rp->policy);
167}
168
169static void hci_cc_write_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
170{
171 __u8 status = *((__u8 *) skb->data);
172 void *sent;
173
174 BT_DBG("%s status 0x%x", hdev->name, status);
175
176 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
177 if (!sent)
178 return;
179
180 if (!status)
181 hdev->link_policy = get_unaligned_le16(sent);
182
183 hci_req_complete(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, status);
184}
185
186static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
187{
188 __u8 status = *((__u8 *) skb->data);
189
190 BT_DBG("%s status 0x%x", hdev->name, status);
191
192 clear_bit(HCI_RESET, &hdev->flags);
193
194 hci_req_complete(hdev, HCI_OP_RESET, status);
195}
196
197static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
198{
199 __u8 status = *((__u8 *) skb->data);
200 void *sent;
201
202 BT_DBG("%s status 0x%x", hdev->name, status);
203
204 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
205 if (!sent)
206 return;
207
208 if (test_bit(HCI_MGMT, &hdev->flags))
209 mgmt_set_local_name_complete(hdev->id, sent, status);
210
211 if (status)
212 return;
213
214 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
215}
216
217static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
218{
219 struct hci_rp_read_local_name *rp = (void *) skb->data;
220
221 BT_DBG("%s status 0x%x", hdev->name, rp->status);
222
223 if (rp->status)
224 return;
225
226 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
227}
228
229static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
230{
231 __u8 status = *((__u8 *) skb->data);
232 void *sent;
233
234 BT_DBG("%s status 0x%x", hdev->name, status);
235
236 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
237 if (!sent)
238 return;
239
240 if (!status) {
241 __u8 param = *((__u8 *) sent);
242
243 if (param == AUTH_ENABLED)
244 set_bit(HCI_AUTH, &hdev->flags);
245 else
246 clear_bit(HCI_AUTH, &hdev->flags);
247 }
248
249 hci_req_complete(hdev, HCI_OP_WRITE_AUTH_ENABLE, status);
250}
251
252static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
253{
254 __u8 status = *((__u8 *) skb->data);
255 void *sent;
256
257 BT_DBG("%s status 0x%x", hdev->name, status);
258
259 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
260 if (!sent)
261 return;
262
263 if (!status) {
264 __u8 param = *((__u8 *) sent);
265
266 if (param)
267 set_bit(HCI_ENCRYPT, &hdev->flags);
268 else
269 clear_bit(HCI_ENCRYPT, &hdev->flags);
270 }
271
272 hci_req_complete(hdev, HCI_OP_WRITE_ENCRYPT_MODE, status);
273}
274
275static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
276{
277 __u8 status = *((__u8 *) skb->data);
278 void *sent;
279
280 BT_DBG("%s status 0x%x", hdev->name, status);
281
282 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
283 if (!sent)
284 return;
285
286 if (!status) {
287 __u8 param = *((__u8 *) sent);
288 int old_pscan, old_iscan;
289
290 old_pscan = test_and_clear_bit(HCI_PSCAN, &hdev->flags);
291 old_iscan = test_and_clear_bit(HCI_ISCAN, &hdev->flags);
292
293 if (param & SCAN_INQUIRY) {
294 set_bit(HCI_ISCAN, &hdev->flags);
295 if (!old_iscan)
296 mgmt_discoverable(hdev->id, 1);
297 } else if (old_iscan)
298 mgmt_discoverable(hdev->id, 0);
299
300 if (param & SCAN_PAGE) {
301 set_bit(HCI_PSCAN, &hdev->flags);
302 if (!old_pscan)
303 mgmt_connectable(hdev->id, 1);
304 } else if (old_pscan)
305 mgmt_connectable(hdev->id, 0);
306 }
307
308 hci_req_complete(hdev, HCI_OP_WRITE_SCAN_ENABLE, status);
309}
310
311static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
312{
313 struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
314
315 BT_DBG("%s status 0x%x", hdev->name, rp->status);
316
317 if (rp->status)
318 return;
319
320 memcpy(hdev->dev_class, rp->dev_class, 3);
321
322 BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
323 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
324}
325
326static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
327{
328 __u8 status = *((__u8 *) skb->data);
329 void *sent;
330
331 BT_DBG("%s status 0x%x", hdev->name, status);
332
333 if (status)
334 return;
335
336 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
337 if (!sent)
338 return;
339
340 memcpy(hdev->dev_class, sent, 3);
341}
342
343static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
344{
345 struct hci_rp_read_voice_setting *rp = (void *) skb->data;
346 __u16 setting;
347
348 BT_DBG("%s status 0x%x", hdev->name, rp->status);
349
350 if (rp->status)
351 return;
352
353 setting = __le16_to_cpu(rp->voice_setting);
354
355 if (hdev->voice_setting == setting)
356 return;
357
358 hdev->voice_setting = setting;
359
360 BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
361
362 if (hdev->notify) {
363 tasklet_disable(&hdev->tx_task);
364 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
365 tasklet_enable(&hdev->tx_task);
366 }
367}
368
369static void hci_cc_write_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
370{
371 __u8 status = *((__u8 *) skb->data);
372 __u16 setting;
373 void *sent;
374
375 BT_DBG("%s status 0x%x", hdev->name, status);
376
377 if (status)
378 return;
379
380 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
381 if (!sent)
382 return;
383
384 setting = get_unaligned_le16(sent);
385
386 if (hdev->voice_setting == setting)
387 return;
388
389 hdev->voice_setting = setting;
390
391 BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
392
393 if (hdev->notify) {
394 tasklet_disable(&hdev->tx_task);
395 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
396 tasklet_enable(&hdev->tx_task);
397 }
398}
399
400static void hci_cc_host_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
401{
402 __u8 status = *((__u8 *) skb->data);
403
404 BT_DBG("%s status 0x%x", hdev->name, status);
405
406 hci_req_complete(hdev, HCI_OP_HOST_BUFFER_SIZE, status);
407}
408
409static void hci_cc_read_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
410{
411 struct hci_rp_read_ssp_mode *rp = (void *) skb->data;
412
413 BT_DBG("%s status 0x%x", hdev->name, rp->status);
414
415 if (rp->status)
416 return;
417
418 hdev->ssp_mode = rp->mode;
419}
420
421static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
422{
423 __u8 status = *((__u8 *) skb->data);
424 void *sent;
425
426 BT_DBG("%s status 0x%x", hdev->name, status);
427
428 if (status)
429 return;
430
431 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
432 if (!sent)
433 return;
434
435 hdev->ssp_mode = *((__u8 *) sent);
436}
437
438static u8 hci_get_inquiry_mode(struct hci_dev *hdev)
439{
440 if (hdev->features[6] & LMP_EXT_INQ)
441 return 2;
442
443 if (hdev->features[3] & LMP_RSSI_INQ)
444 return 1;
445
446 if (hdev->manufacturer == 11 && hdev->hci_rev == 0x00 &&
447 hdev->lmp_subver == 0x0757)
448 return 1;
449
450 if (hdev->manufacturer == 15) {
451 if (hdev->hci_rev == 0x03 && hdev->lmp_subver == 0x6963)
452 return 1;
453 if (hdev->hci_rev == 0x09 && hdev->lmp_subver == 0x6963)
454 return 1;
455 if (hdev->hci_rev == 0x00 && hdev->lmp_subver == 0x6965)
456 return 1;
457 }
458
459 if (hdev->manufacturer == 31 && hdev->hci_rev == 0x2005 &&
460 hdev->lmp_subver == 0x1805)
461 return 1;
462
463 return 0;
464}
465
466static void hci_setup_inquiry_mode(struct hci_dev *hdev)
467{
468 u8 mode;
469
470 mode = hci_get_inquiry_mode(hdev);
471
472 hci_send_cmd(hdev, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode);
473}
474
475static void hci_setup_event_mask(struct hci_dev *hdev)
476{
477 /* The second byte is 0xff instead of 0x9f (two reserved bits
478 * disabled) since a Broadcom 1.2 dongle doesn't respond to the
479 * command otherwise */
480 u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 };
481
482 /* CSR 1.1 dongles does not accept any bitfield so don't try to set
483 * any event mask for pre 1.2 devices */
484 if (hdev->lmp_ver <= 1)
485 return;
486
487 events[4] |= 0x01; /* Flow Specification Complete */
488 events[4] |= 0x02; /* Inquiry Result with RSSI */
489 events[4] |= 0x04; /* Read Remote Extended Features Complete */
490 events[5] |= 0x08; /* Synchronous Connection Complete */
491 events[5] |= 0x10; /* Synchronous Connection Changed */
492
493 if (hdev->features[3] & LMP_RSSI_INQ)
494 events[4] |= 0x04; /* Inquiry Result with RSSI */
495
496 if (hdev->features[5] & LMP_SNIFF_SUBR)
497 events[5] |= 0x20; /* Sniff Subrating */
498
499 if (hdev->features[5] & LMP_PAUSE_ENC)
500 events[5] |= 0x80; /* Encryption Key Refresh Complete */
501
502 if (hdev->features[6] & LMP_EXT_INQ)
503 events[5] |= 0x40; /* Extended Inquiry Result */
504
505 if (hdev->features[6] & LMP_NO_FLUSH)
506 events[7] |= 0x01; /* Enhanced Flush Complete */
507
508 if (hdev->features[7] & LMP_LSTO)
509 events[6] |= 0x80; /* Link Supervision Timeout Changed */
510
511 if (hdev->features[6] & LMP_SIMPLE_PAIR) {
512 events[6] |= 0x01; /* IO Capability Request */
513 events[6] |= 0x02; /* IO Capability Response */
514 events[6] |= 0x04; /* User Confirmation Request */
515 events[6] |= 0x08; /* User Passkey Request */
516 events[6] |= 0x10; /* Remote OOB Data Request */
517 events[6] |= 0x20; /* Simple Pairing Complete */
518 events[7] |= 0x04; /* User Passkey Notification */
519 events[7] |= 0x08; /* Keypress Notification */
520 events[7] |= 0x10; /* Remote Host Supported
521 * Features Notification */
522 }
523
524 if (hdev->features[4] & LMP_LE)
525 events[7] |= 0x20; /* LE Meta-Event */
526
527 hci_send_cmd(hdev, HCI_OP_SET_EVENT_MASK, sizeof(events), events);
528}
529
530static void hci_set_le_support(struct hci_dev *hdev)
531{
532 struct hci_cp_write_le_host_supported cp;
533
534 memset(&cp, 0, sizeof(cp));
535
536 if (enable_le) {
537 cp.le = 1;
538 cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
539 }
540
541 hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp), &cp);
542}
543
544static void hci_setup(struct hci_dev *hdev)
545{
546 hci_setup_event_mask(hdev);
547
548 if (hdev->lmp_ver > 1)
549 hci_send_cmd(hdev, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
550
551 if (hdev->features[6] & LMP_SIMPLE_PAIR) {
552 u8 mode = 0x01;
553 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, sizeof(mode), &mode);
554 }
555
556 if (hdev->features[3] & LMP_RSSI_INQ)
557 hci_setup_inquiry_mode(hdev);
558
559 if (hdev->features[7] & LMP_INQ_TX_PWR)
560 hci_send_cmd(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);
561
562 if (hdev->features[7] & LMP_EXTFEATURES) {
563 struct hci_cp_read_local_ext_features cp;
564
565 cp.page = 0x01;
566 hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES,
567 sizeof(cp), &cp);
568 }
569
570 if (hdev->features[4] & LMP_LE)
571 hci_set_le_support(hdev);
572}
573
574static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
575{
576 struct hci_rp_read_local_version *rp = (void *) skb->data;
577
578 BT_DBG("%s status 0x%x", hdev->name, rp->status);
579
580 if (rp->status)
581 return;
582
583 hdev->hci_ver = rp->hci_ver;
584 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
585 hdev->lmp_ver = rp->lmp_ver;
586 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
587 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
588
589 BT_DBG("%s manufacturer %d hci ver %d:%d", hdev->name,
590 hdev->manufacturer,
591 hdev->hci_ver, hdev->hci_rev);
592
593 if (test_bit(HCI_INIT, &hdev->flags))
594 hci_setup(hdev);
595}
596
597static void hci_setup_link_policy(struct hci_dev *hdev)
598{
599 u16 link_policy = 0;
600
601 if (hdev->features[0] & LMP_RSWITCH)
602 link_policy |= HCI_LP_RSWITCH;
603 if (hdev->features[0] & LMP_HOLD)
604 link_policy |= HCI_LP_HOLD;
605 if (hdev->features[0] & LMP_SNIFF)
606 link_policy |= HCI_LP_SNIFF;
607 if (hdev->features[1] & LMP_PARK)
608 link_policy |= HCI_LP_PARK;
609
610 link_policy = cpu_to_le16(link_policy);
611 hci_send_cmd(hdev, HCI_OP_WRITE_DEF_LINK_POLICY,
612 sizeof(link_policy), &link_policy);
613}
614
615static void hci_cc_read_local_commands(struct hci_dev *hdev, struct sk_buff *skb)
616{
617 struct hci_rp_read_local_commands *rp = (void *) skb->data;
618
619 BT_DBG("%s status 0x%x", hdev->name, rp->status);
620
621 if (rp->status)
622 goto done;
623
624 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
625
626 if (test_bit(HCI_INIT, &hdev->flags) && (hdev->commands[5] & 0x10))
627 hci_setup_link_policy(hdev);
628
629done:
630 hci_req_complete(hdev, HCI_OP_READ_LOCAL_COMMANDS, rp->status);
631}
632
633static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb)
634{
635 struct hci_rp_read_local_features *rp = (void *) skb->data;
636
637 BT_DBG("%s status 0x%x", hdev->name, rp->status);
638
639 if (rp->status)
640 return;
641
642 memcpy(hdev->features, rp->features, 8);
643
644 /* Adjust default settings according to features
645 * supported by device. */
646
647 if (hdev->features[0] & LMP_3SLOT)
648 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
649
650 if (hdev->features[0] & LMP_5SLOT)
651 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
652
653 if (hdev->features[1] & LMP_HV2) {
654 hdev->pkt_type |= (HCI_HV2);
655 hdev->esco_type |= (ESCO_HV2);
656 }
657
658 if (hdev->features[1] & LMP_HV3) {
659 hdev->pkt_type |= (HCI_HV3);
660 hdev->esco_type |= (ESCO_HV3);
661 }
662
663 if (hdev->features[3] & LMP_ESCO)
664 hdev->esco_type |= (ESCO_EV3);
665
666 if (hdev->features[4] & LMP_EV4)
667 hdev->esco_type |= (ESCO_EV4);
668
669 if (hdev->features[4] & LMP_EV5)
670 hdev->esco_type |= (ESCO_EV5);
671
672 if (hdev->features[5] & LMP_EDR_ESCO_2M)
673 hdev->esco_type |= (ESCO_2EV3);
674
675 if (hdev->features[5] & LMP_EDR_ESCO_3M)
676 hdev->esco_type |= (ESCO_3EV3);
677
678 if (hdev->features[5] & LMP_EDR_3S_ESCO)
679 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
680
681 BT_DBG("%s features 0x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", hdev->name,
682 hdev->features[0], hdev->features[1],
683 hdev->features[2], hdev->features[3],
684 hdev->features[4], hdev->features[5],
685 hdev->features[6], hdev->features[7]);
686}
687
688static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
689 struct sk_buff *skb)
690{
691 struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
692
693 BT_DBG("%s status 0x%x", hdev->name, rp->status);
694
695 if (rp->status)
696 return;
697
698 memcpy(hdev->extfeatures, rp->features, 8);
699
700 hci_req_complete(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, rp->status);
701}
702
703static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
704{
705 struct hci_rp_read_buffer_size *rp = (void *) skb->data;
706
707 BT_DBG("%s status 0x%x", hdev->name, rp->status);
708
709 if (rp->status)
710 return;
711
712 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
713 hdev->sco_mtu = rp->sco_mtu;
714 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
715 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
716
717 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
718 hdev->sco_mtu = 64;
719 hdev->sco_pkts = 8;
720 }
721
722 hdev->acl_cnt = hdev->acl_pkts;
723 hdev->sco_cnt = hdev->sco_pkts;
724
725 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name,
726 hdev->acl_mtu, hdev->acl_pkts,
727 hdev->sco_mtu, hdev->sco_pkts);
728}
729
730static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
731{
732 struct hci_rp_read_bd_addr *rp = (void *) skb->data;
733
734 BT_DBG("%s status 0x%x", hdev->name, rp->status);
735
736 if (!rp->status)
737 bacpy(&hdev->bdaddr, &rp->bdaddr);
738
739 hci_req_complete(hdev, HCI_OP_READ_BD_ADDR, rp->status);
740}
741
742static void hci_cc_write_ca_timeout(struct hci_dev *hdev, struct sk_buff *skb)
743{
744 __u8 status = *((__u8 *) skb->data);
745
746 BT_DBG("%s status 0x%x", hdev->name, status);
747
748 hci_req_complete(hdev, HCI_OP_WRITE_CA_TIMEOUT, status);
749}
750
751static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
752 struct sk_buff *skb)
753{
754 __u8 status = *((__u8 *) skb->data);
755
756 BT_DBG("%s status 0x%x", hdev->name, status);
757
758 hci_req_complete(hdev, HCI_OP_DELETE_STORED_LINK_KEY, status);
759}
760
761static void hci_cc_set_event_mask(struct hci_dev *hdev, struct sk_buff *skb)
762{
763 __u8 status = *((__u8 *) skb->data);
764
765 BT_DBG("%s status 0x%x", hdev->name, status);
766
767 hci_req_complete(hdev, HCI_OP_SET_EVENT_MASK, status);
768}
769
770static void hci_cc_write_inquiry_mode(struct hci_dev *hdev,
771 struct sk_buff *skb)
772{
773 __u8 status = *((__u8 *) skb->data);
774
775 BT_DBG("%s status 0x%x", hdev->name, status);
776
777 hci_req_complete(hdev, HCI_OP_WRITE_INQUIRY_MODE, status);
778}
779
780static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
781 struct sk_buff *skb)
782{
783 __u8 status = *((__u8 *) skb->data);
784
785 BT_DBG("%s status 0x%x", hdev->name, status);
786
787 hci_req_complete(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, status);
788}
789
790static void hci_cc_set_event_flt(struct hci_dev *hdev, struct sk_buff *skb)
791{
792 __u8 status = *((__u8 *) skb->data);
793
794 BT_DBG("%s status 0x%x", hdev->name, status);
795
796 hci_req_complete(hdev, HCI_OP_SET_EVENT_FLT, status);
797}
798
799static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
800{
801 struct hci_rp_pin_code_reply *rp = (void *) skb->data;
802 struct hci_cp_pin_code_reply *cp;
803 struct hci_conn *conn;
804
805 BT_DBG("%s status 0x%x", hdev->name, rp->status);
806
807 if (test_bit(HCI_MGMT, &hdev->flags))
808 mgmt_pin_code_reply_complete(hdev->id, &rp->bdaddr, rp->status);
809
810 if (rp->status != 0)
811 return;
812
813 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
814 if (!cp)
815 return;
816
817 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
818 if (conn)
819 conn->pin_length = cp->pin_len;
820}
821
822static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
823{
824 struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
825
826 BT_DBG("%s status 0x%x", hdev->name, rp->status);
827
828 if (test_bit(HCI_MGMT, &hdev->flags))
829 mgmt_pin_code_neg_reply_complete(hdev->id, &rp->bdaddr,
830 rp->status);
831}
832static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
833 struct sk_buff *skb)
834{
835 struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
836
837 BT_DBG("%s status 0x%x", hdev->name, rp->status);
838
839 if (rp->status)
840 return;
841
842 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
843 hdev->le_pkts = rp->le_max_pkt;
844
845 hdev->le_cnt = hdev->le_pkts;
846
847 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
848
849 hci_req_complete(hdev, HCI_OP_LE_READ_BUFFER_SIZE, rp->status);
850}
851
852static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
853{
854 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
855
856 BT_DBG("%s status 0x%x", hdev->name, rp->status);
857
858 if (test_bit(HCI_MGMT, &hdev->flags))
859 mgmt_user_confirm_reply_complete(hdev->id, &rp->bdaddr,
860 rp->status);
861}
862
863static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
864 struct sk_buff *skb)
865{
866 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
867
868 BT_DBG("%s status 0x%x", hdev->name, rp->status);
869
870 if (test_bit(HCI_MGMT, &hdev->flags))
871 mgmt_user_confirm_neg_reply_complete(hdev->id, &rp->bdaddr,
872 rp->status);
873}
874
875static void hci_cc_read_local_oob_data_reply(struct hci_dev *hdev,
876 struct sk_buff *skb)
877{
878 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
879
880 BT_DBG("%s status 0x%x", hdev->name, rp->status);
881
882 mgmt_read_local_oob_data_reply_complete(hdev->id, rp->hash,
883 rp->randomizer, rp->status);
884}
885
886static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
887 struct sk_buff *skb)
888{
889 struct hci_cp_le_set_scan_enable *cp;
890 __u8 status = *((__u8 *) skb->data);
891
892 BT_DBG("%s status 0x%x", hdev->name, status);
893
894 if (status)
895 return;
896
897 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
898 if (!cp)
899 return;
900
901 hci_dev_lock(hdev);
902
903 if (cp->enable == 0x01) {
904 del_timer(&hdev->adv_timer);
905 hci_adv_entries_clear(hdev);
906 } else if (cp->enable == 0x00) {
907 mod_timer(&hdev->adv_timer, jiffies + ADV_CLEAR_TIMEOUT);
908 }
909
910 hci_dev_unlock(hdev);
911}
912
913static void hci_cc_le_ltk_reply(struct hci_dev *hdev, struct sk_buff *skb)
914{
915 struct hci_rp_le_ltk_reply *rp = (void *) skb->data;
916
917 BT_DBG("%s status 0x%x", hdev->name, rp->status);
918
919 if (rp->status)
920 return;
921
922 hci_req_complete(hdev, HCI_OP_LE_LTK_REPLY, rp->status);
923}
924
925static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
926{
927 struct hci_rp_le_ltk_neg_reply *rp = (void *) skb->data;
928
929 BT_DBG("%s status 0x%x", hdev->name, rp->status);
930
931 if (rp->status)
932 return;
933
934 hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
935}
936
937static inline void hci_cc_write_le_host_supported(struct hci_dev *hdev,
938 struct sk_buff *skb)
939{
940 struct hci_cp_read_local_ext_features cp;
941 __u8 status = *((__u8 *) skb->data);
942
943 BT_DBG("%s status 0x%x", hdev->name, status);
944
945 if (status)
946 return;
947
948 cp.page = 0x01;
949 hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, sizeof(cp), &cp);
950}
951
952static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
953{
954 BT_DBG("%s status 0x%x", hdev->name, status);
955
956 if (status) {
957 hci_req_complete(hdev, HCI_OP_INQUIRY, status);
958 hci_conn_check_pending(hdev);
959 return;
960 }
961
962 if (!test_and_set_bit(HCI_INQUIRY, &hdev->flags) &&
963 test_bit(HCI_MGMT, &hdev->flags))
964 mgmt_discovering(hdev->id, 1);
965}
966
967static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
968{
969 struct hci_cp_create_conn *cp;
970 struct hci_conn *conn;
971
972 BT_DBG("%s status 0x%x", hdev->name, status);
973
974 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
975 if (!cp)
976 return;
977
978 hci_dev_lock(hdev);
979
980 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
981
982 BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->bdaddr), conn);
983
984 if (status) {
985 if (conn && conn->state == BT_CONNECT) {
986 if (status != 0x0c || conn->attempt > 2) {
987 conn->state = BT_CLOSED;
988 hci_proto_connect_cfm(conn, status);
989 hci_conn_del(conn);
990 } else
991 conn->state = BT_CONNECT2;
992 }
993 } else {
994 if (!conn) {
995 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
996 if (conn) {
997 conn->out = 1;
998 conn->link_mode |= HCI_LM_MASTER;
999 } else
1000 BT_ERR("No memory for new connection");
1001 }
1002 }
1003
1004 hci_dev_unlock(hdev);
1005}
1006
1007static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1008{
1009 struct hci_cp_add_sco *cp;
1010 struct hci_conn *acl, *sco;
1011 __u16 handle;
1012
1013 BT_DBG("%s status 0x%x", hdev->name, status);
1014
1015 if (!status)
1016 return;
1017
1018 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
1019 if (!cp)
1020 return;
1021
1022 handle = __le16_to_cpu(cp->handle);
1023
1024 BT_DBG("%s handle %d", hdev->name, handle);
1025
1026 hci_dev_lock(hdev);
1027
1028 acl = hci_conn_hash_lookup_handle(hdev, handle);
1029 if (acl) {
1030 sco = acl->link;
1031 if (sco) {
1032 sco->state = BT_CLOSED;
1033
1034 hci_proto_connect_cfm(sco, status);
1035 hci_conn_del(sco);
1036 }
1037 }
1038
1039 hci_dev_unlock(hdev);
1040}
1041
1042static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
1043{
1044 struct hci_cp_auth_requested *cp;
1045 struct hci_conn *conn;
1046
1047 BT_DBG("%s status 0x%x", hdev->name, status);
1048
1049 if (!status)
1050 return;
1051
1052 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
1053 if (!cp)
1054 return;
1055
1056 hci_dev_lock(hdev);
1057
1058 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1059 if (conn) {
1060 if (conn->state == BT_CONFIG) {
1061 hci_proto_connect_cfm(conn, status);
1062 hci_conn_put(conn);
1063 }
1064 }
1065
1066 hci_dev_unlock(hdev);
1067}
1068
1069static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
1070{
1071 struct hci_cp_set_conn_encrypt *cp;
1072 struct hci_conn *conn;
1073
1074 BT_DBG("%s status 0x%x", hdev->name, status);
1075
1076 if (!status)
1077 return;
1078
1079 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
1080 if (!cp)
1081 return;
1082
1083 hci_dev_lock(hdev);
1084
1085 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1086 if (conn) {
1087 if (conn->state == BT_CONFIG) {
1088 hci_proto_connect_cfm(conn, status);
1089 hci_conn_put(conn);
1090 }
1091 }
1092
1093 hci_dev_unlock(hdev);
1094}
1095
1096static int hci_outgoing_auth_needed(struct hci_dev *hdev,
1097 struct hci_conn *conn)
1098{
1099 if (conn->state != BT_CONFIG || !conn->out)
1100 return 0;
1101
1102 if (conn->pending_sec_level == BT_SECURITY_SDP)
1103 return 0;
1104
1105 /* Only request authentication for SSP connections or non-SSP
1106 * devices with sec_level HIGH */
1107 if (!(hdev->ssp_mode > 0 && conn->ssp_mode > 0) &&
1108 conn->pending_sec_level != BT_SECURITY_HIGH)
1109 return 0;
1110
1111 return 1;
1112}
1113
1114static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
1115{
1116 struct hci_cp_remote_name_req *cp;
1117 struct hci_conn *conn;
1118
1119 BT_DBG("%s status 0x%x", hdev->name, status);
1120
1121 /* If successful wait for the name req complete event before
1122 * checking for the need to do authentication */
1123 if (!status)
1124 return;
1125
1126 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
1127 if (!cp)
1128 return;
1129
1130 hci_dev_lock(hdev);
1131
1132 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1133 if (!conn)
1134 goto unlock;
1135
1136 if (!hci_outgoing_auth_needed(hdev, conn))
1137 goto unlock;
1138
1139 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
1140 struct hci_cp_auth_requested cp;
1141 cp.handle = __cpu_to_le16(conn->handle);
1142 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
1143 }
1144
1145unlock:
1146 hci_dev_unlock(hdev);
1147}
1148
1149static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
1150{
1151 struct hci_cp_read_remote_features *cp;
1152 struct hci_conn *conn;
1153
1154 BT_DBG("%s status 0x%x", hdev->name, status);
1155
1156 if (!status)
1157 return;
1158
1159 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
1160 if (!cp)
1161 return;
1162
1163 hci_dev_lock(hdev);
1164
1165 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1166 if (conn) {
1167 if (conn->state == BT_CONFIG) {
1168 hci_proto_connect_cfm(conn, status);
1169 hci_conn_put(conn);
1170 }
1171 }
1172
1173 hci_dev_unlock(hdev);
1174}
1175
1176static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
1177{
1178 struct hci_cp_read_remote_ext_features *cp;
1179 struct hci_conn *conn;
1180
1181 BT_DBG("%s status 0x%x", hdev->name, status);
1182
1183 if (!status)
1184 return;
1185
1186 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
1187 if (!cp)
1188 return;
1189
1190 hci_dev_lock(hdev);
1191
1192 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1193 if (conn) {
1194 if (conn->state == BT_CONFIG) {
1195 hci_proto_connect_cfm(conn, status);
1196 hci_conn_put(conn);
1197 }
1198 }
1199
1200 hci_dev_unlock(hdev);
1201}
1202
1203static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
1204{
1205 struct hci_cp_setup_sync_conn *cp;
1206 struct hci_conn *acl, *sco;
1207 __u16 handle;
1208
1209 BT_DBG("%s status 0x%x", hdev->name, status);
1210
1211 if (!status)
1212 return;
1213
1214 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
1215 if (!cp)
1216 return;
1217
1218 handle = __le16_to_cpu(cp->handle);
1219
1220 BT_DBG("%s handle %d", hdev->name, handle);
1221
1222 hci_dev_lock(hdev);
1223
1224 acl = hci_conn_hash_lookup_handle(hdev, handle);
1225 if (acl) {
1226 sco = acl->link;
1227 if (sco) {
1228 sco->state = BT_CLOSED;
1229
1230 hci_proto_connect_cfm(sco, status);
1231 hci_conn_del(sco);
1232 }
1233 }
1234
1235 hci_dev_unlock(hdev);
1236}
1237
1238static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
1239{
1240 struct hci_cp_sniff_mode *cp;
1241 struct hci_conn *conn;
1242
1243 BT_DBG("%s status 0x%x", hdev->name, status);
1244
1245 if (!status)
1246 return;
1247
1248 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
1249 if (!cp)
1250 return;
1251
1252 hci_dev_lock(hdev);
1253
1254 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1255 if (conn) {
1256 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
1257
1258 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->pend))
1259 hci_sco_setup(conn, status);
1260 }
1261
1262 hci_dev_unlock(hdev);
1263}
1264
1265static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
1266{
1267 struct hci_cp_exit_sniff_mode *cp;
1268 struct hci_conn *conn;
1269
1270 BT_DBG("%s status 0x%x", hdev->name, status);
1271
1272 if (!status)
1273 return;
1274
1275 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
1276 if (!cp)
1277 return;
1278
1279 hci_dev_lock(hdev);
1280
1281 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1282 if (conn) {
1283 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
1284
1285 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->pend))
1286 hci_sco_setup(conn, status);
1287 }
1288
1289 hci_dev_unlock(hdev);
1290}
1291
1292static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
1293{
1294 struct hci_cp_le_create_conn *cp;
1295 struct hci_conn *conn;
1296
1297 BT_DBG("%s status 0x%x", hdev->name, status);
1298
1299 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
1300 if (!cp)
1301 return;
1302
1303 hci_dev_lock(hdev);
1304
1305 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr);
1306
1307 BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->peer_addr),
1308 conn);
1309
1310 if (status) {
1311 if (conn && conn->state == BT_CONNECT) {
1312 conn->state = BT_CLOSED;
1313 hci_proto_connect_cfm(conn, status);
1314 hci_conn_del(conn);
1315 }
1316 } else {
1317 if (!conn) {
1318 conn = hci_conn_add(hdev, LE_LINK, &cp->peer_addr);
1319 if (conn) {
1320 conn->dst_type = cp->peer_addr_type;
1321 conn->out = 1;
1322 } else {
1323 BT_ERR("No memory for new connection");
1324 }
1325 }
1326 }
1327
1328 hci_dev_unlock(hdev);
1329}
1330
1331static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
1332{
1333 BT_DBG("%s status 0x%x", hdev->name, status);
1334}
1335
1336static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1337{
1338 __u8 status = *((__u8 *) skb->data);
1339
1340 BT_DBG("%s status %d", hdev->name, status);
1341
1342 if (test_and_clear_bit(HCI_INQUIRY, &hdev->flags) &&
1343 test_bit(HCI_MGMT, &hdev->flags))
1344 mgmt_discovering(hdev->id, 0);
1345
1346 hci_req_complete(hdev, HCI_OP_INQUIRY, status);
1347
1348 hci_conn_check_pending(hdev);
1349}
1350
1351static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
1352{
1353 struct inquiry_data data;
1354 struct inquiry_info *info = (void *) (skb->data + 1);
1355 int num_rsp = *((__u8 *) skb->data);
1356
1357 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1358
1359 if (!num_rsp)
1360 return;
1361
1362 hci_dev_lock(hdev);
1363
1364 if (!test_and_set_bit(HCI_INQUIRY, &hdev->flags)) {
1365
1366 if (test_bit(HCI_MGMT, &hdev->flags))
1367 mgmt_discovering(hdev->id, 1);
1368 }
1369
1370 for (; num_rsp; num_rsp--, info++) {
1371 bacpy(&data.bdaddr, &info->bdaddr);
1372 data.pscan_rep_mode = info->pscan_rep_mode;
1373 data.pscan_period_mode = info->pscan_period_mode;
1374 data.pscan_mode = info->pscan_mode;
1375 memcpy(data.dev_class, info->dev_class, 3);
1376 data.clock_offset = info->clock_offset;
1377 data.rssi = 0x00;
1378 data.ssp_mode = 0x00;
1379 hci_inquiry_cache_update(hdev, &data);
1380 mgmt_device_found(hdev->id, &info->bdaddr, info->dev_class, 0,
1381 NULL);
1382 }
1383
1384 hci_dev_unlock(hdev);
1385}
1386
1387static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1388{
1389 struct hci_ev_conn_complete *ev = (void *) skb->data;
1390 struct hci_conn *conn;
1391
1392 BT_DBG("%s", hdev->name);
1393
1394 hci_dev_lock(hdev);
1395
1396 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
1397 if (!conn) {
1398 if (ev->link_type != SCO_LINK)
1399 goto unlock;
1400
1401 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
1402 if (!conn)
1403 goto unlock;
1404
1405 conn->type = SCO_LINK;
1406 }
1407
1408 if (!ev->status) {
1409 conn->handle = __le16_to_cpu(ev->handle);
1410
1411 if (conn->type == ACL_LINK) {
1412 conn->state = BT_CONFIG;
1413 hci_conn_hold(conn);
1414 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
1415 mgmt_connected(hdev->id, &ev->bdaddr);
1416 } else
1417 conn->state = BT_CONNECTED;
1418
1419 hci_conn_hold_device(conn);
1420 hci_conn_add_sysfs(conn);
1421
1422 if (test_bit(HCI_AUTH, &hdev->flags))
1423 conn->link_mode |= HCI_LM_AUTH;
1424
1425 if (test_bit(HCI_ENCRYPT, &hdev->flags))
1426 conn->link_mode |= HCI_LM_ENCRYPT;
1427
1428 /* Get remote features */
1429 if (conn->type == ACL_LINK) {
1430 struct hci_cp_read_remote_features cp;
1431 cp.handle = ev->handle;
1432 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
1433 sizeof(cp), &cp);
1434 }
1435
1436 /* Set packet type for incoming connection */
1437 if (!conn->out && hdev->hci_ver < 3) {
1438 struct hci_cp_change_conn_ptype cp;
1439 cp.handle = ev->handle;
1440 cp.pkt_type = cpu_to_le16(conn->pkt_type);
1441 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE,
1442 sizeof(cp), &cp);
1443 }
1444 } else {
1445 conn->state = BT_CLOSED;
1446 if (conn->type == ACL_LINK)
1447 mgmt_connect_failed(hdev->id, &ev->bdaddr, ev->status);
1448 }
1449
1450 if (conn->type == ACL_LINK)
1451 hci_sco_setup(conn, ev->status);
1452
1453 if (ev->status) {
1454 hci_proto_connect_cfm(conn, ev->status);
1455 hci_conn_del(conn);
1456 } else if (ev->link_type != ACL_LINK)
1457 hci_proto_connect_cfm(conn, ev->status);
1458
1459unlock:
1460 hci_dev_unlock(hdev);
1461
1462 hci_conn_check_pending(hdev);
1463}
1464
1465static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1466{
1467 struct hci_ev_conn_request *ev = (void *) skb->data;
1468 int mask = hdev->link_mode;
1469
1470 BT_DBG("%s bdaddr %s type 0x%x", hdev->name,
1471 batostr(&ev->bdaddr), ev->link_type);
1472
1473 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
1474
1475 if ((mask & HCI_LM_ACCEPT) &&
1476 !hci_blacklist_lookup(hdev, &ev->bdaddr)) {
1477 /* Connection accepted */
1478 struct inquiry_entry *ie;
1479 struct hci_conn *conn;
1480
1481 hci_dev_lock(hdev);
1482
1483 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
1484 if (ie)
1485 memcpy(ie->data.dev_class, ev->dev_class, 3);
1486
1487 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
1488 if (!conn) {
1489 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr);
1490 if (!conn) {
1491 BT_ERR("No memory for new connection");
1492 hci_dev_unlock(hdev);
1493 return;
1494 }
1495 }
1496
1497 memcpy(conn->dev_class, ev->dev_class, 3);
1498 conn->state = BT_CONNECT;
1499
1500 hci_dev_unlock(hdev);
1501
1502 if (ev->link_type == ACL_LINK || !lmp_esco_capable(hdev)) {
1503 struct hci_cp_accept_conn_req cp;
1504
1505 bacpy(&cp.bdaddr, &ev->bdaddr);
1506
1507 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
1508 cp.role = 0x00; /* Become master */
1509 else
1510 cp.role = 0x01; /* Remain slave */
1511
1512 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ,
1513 sizeof(cp), &cp);
1514 } else {
1515 struct hci_cp_accept_sync_conn_req cp;
1516
1517 bacpy(&cp.bdaddr, &ev->bdaddr);
1518 cp.pkt_type = cpu_to_le16(conn->pkt_type);
1519
1520 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
1521 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
1522 cp.max_latency = cpu_to_le16(0xffff);
1523 cp.content_format = cpu_to_le16(hdev->voice_setting);
1524 cp.retrans_effort = 0xff;
1525
1526 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
1527 sizeof(cp), &cp);
1528 }
1529 } else {
1530 /* Connection rejected */
1531 struct hci_cp_reject_conn_req cp;
1532
1533 bacpy(&cp.bdaddr, &ev->bdaddr);
1534 cp.reason = 0x0f;
1535 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
1536 }
1537}
1538
1539static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1540{
1541 struct hci_ev_disconn_complete *ev = (void *) skb->data;
1542 struct hci_conn *conn;
1543
1544 BT_DBG("%s status %d", hdev->name, ev->status);
1545
1546 if (ev->status) {
1547 mgmt_disconnect_failed(hdev->id);
1548 return;
1549 }
1550
1551 hci_dev_lock(hdev);
1552
1553 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1554 if (!conn)
1555 goto unlock;
1556
1557 conn->state = BT_CLOSED;
1558
1559 if (conn->type == ACL_LINK || conn->type == LE_LINK)
1560 mgmt_disconnected(hdev->id, &conn->dst);
1561
1562 hci_proto_disconn_cfm(conn, ev->reason);
1563 hci_conn_del(conn);
1564
1565unlock:
1566 hci_dev_unlock(hdev);
1567}
1568
1569static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1570{
1571 struct hci_ev_auth_complete *ev = (void *) skb->data;
1572 struct hci_conn *conn;
1573
1574 BT_DBG("%s status %d", hdev->name, ev->status);
1575
1576 hci_dev_lock(hdev);
1577
1578 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1579 if (!conn)
1580 goto unlock;
1581
1582 if (!ev->status) {
1583 if (!(conn->ssp_mode > 0 && hdev->ssp_mode > 0) &&
1584 test_bit(HCI_CONN_REAUTH_PEND, &conn->pend)) {
1585 BT_INFO("re-auth of legacy device is not possible.");
1586 } else {
1587 conn->link_mode |= HCI_LM_AUTH;
1588 conn->sec_level = conn->pending_sec_level;
1589 }
1590 } else {
1591 mgmt_auth_failed(hdev->id, &conn->dst, ev->status);
1592 }
1593
1594 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
1595 clear_bit(HCI_CONN_REAUTH_PEND, &conn->pend);
1596
1597 if (conn->state == BT_CONFIG) {
1598 if (!ev->status && hdev->ssp_mode > 0 && conn->ssp_mode > 0) {
1599 struct hci_cp_set_conn_encrypt cp;
1600 cp.handle = ev->handle;
1601 cp.encrypt = 0x01;
1602 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
1603 &cp);
1604 } else {
1605 conn->state = BT_CONNECTED;
1606 hci_proto_connect_cfm(conn, ev->status);
1607 hci_conn_put(conn);
1608 }
1609 } else {
1610 hci_auth_cfm(conn, ev->status);
1611
1612 hci_conn_hold(conn);
1613 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
1614 hci_conn_put(conn);
1615 }
1616
1617 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
1618 if (!ev->status) {
1619 struct hci_cp_set_conn_encrypt cp;
1620 cp.handle = ev->handle;
1621 cp.encrypt = 0x01;
1622 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
1623 &cp);
1624 } else {
1625 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
1626 hci_encrypt_cfm(conn, ev->status, 0x00);
1627 }
1628 }
1629
1630unlock:
1631 hci_dev_unlock(hdev);
1632}
1633
1634static inline void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
1635{
1636 struct hci_ev_remote_name *ev = (void *) skb->data;
1637 struct hci_conn *conn;
1638
1639 BT_DBG("%s", hdev->name);
1640
1641 hci_conn_check_pending(hdev);
1642
1643 hci_dev_lock(hdev);
1644
1645 if (ev->status == 0 && test_bit(HCI_MGMT, &hdev->flags))
1646 mgmt_remote_name(hdev->id, &ev->bdaddr, ev->name);
1647
1648 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1649 if (!conn)
1650 goto unlock;
1651
1652 if (!hci_outgoing_auth_needed(hdev, conn))
1653 goto unlock;
1654
1655 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
1656 struct hci_cp_auth_requested cp;
1657 cp.handle = __cpu_to_le16(conn->handle);
1658 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
1659 }
1660
1661unlock:
1662 hci_dev_unlock(hdev);
1663}
1664
1665static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
1666{
1667 struct hci_ev_encrypt_change *ev = (void *) skb->data;
1668 struct hci_conn *conn;
1669
1670 BT_DBG("%s status %d", hdev->name, ev->status);
1671
1672 hci_dev_lock(hdev);
1673
1674 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1675 if (conn) {
1676 if (!ev->status) {
1677 if (ev->encrypt) {
1678 /* Encryption implies authentication */
1679 conn->link_mode |= HCI_LM_AUTH;
1680 conn->link_mode |= HCI_LM_ENCRYPT;
1681 conn->sec_level = conn->pending_sec_level;
1682 } else
1683 conn->link_mode &= ~HCI_LM_ENCRYPT;
1684 }
1685
1686 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
1687
1688 if (conn->state == BT_CONFIG) {
1689 if (!ev->status)
1690 conn->state = BT_CONNECTED;
1691
1692 hci_proto_connect_cfm(conn, ev->status);
1693 hci_conn_put(conn);
1694 } else
1695 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
1696 }
1697
1698 hci_dev_unlock(hdev);
1699}
1700
1701static inline void hci_change_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1702{
1703 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
1704 struct hci_conn *conn;
1705
1706 BT_DBG("%s status %d", hdev->name, ev->status);
1707
1708 hci_dev_lock(hdev);
1709
1710 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1711 if (conn) {
1712 if (!ev->status)
1713 conn->link_mode |= HCI_LM_SECURE;
1714
1715 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
1716
1717 hci_key_change_cfm(conn, ev->status);
1718 }
1719
1720 hci_dev_unlock(hdev);
1721}
1722
1723static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
1724{
1725 struct hci_ev_remote_features *ev = (void *) skb->data;
1726 struct hci_conn *conn;
1727
1728 BT_DBG("%s status %d", hdev->name, ev->status);
1729
1730 hci_dev_lock(hdev);
1731
1732 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1733 if (!conn)
1734 goto unlock;
1735
1736 if (!ev->status)
1737 memcpy(conn->features, ev->features, 8);
1738
1739 if (conn->state != BT_CONFIG)
1740 goto unlock;
1741
1742 if (!ev->status && lmp_ssp_capable(hdev) && lmp_ssp_capable(conn)) {
1743 struct hci_cp_read_remote_ext_features cp;
1744 cp.handle = ev->handle;
1745 cp.page = 0x01;
1746 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
1747 sizeof(cp), &cp);
1748 goto unlock;
1749 }
1750
1751 if (!ev->status) {
1752 struct hci_cp_remote_name_req cp;
1753 memset(&cp, 0, sizeof(cp));
1754 bacpy(&cp.bdaddr, &conn->dst);
1755 cp.pscan_rep_mode = 0x02;
1756 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
1757 }
1758
1759 if (!hci_outgoing_auth_needed(hdev, conn)) {
1760 conn->state = BT_CONNECTED;
1761 hci_proto_connect_cfm(conn, ev->status);
1762 hci_conn_put(conn);
1763 }
1764
1765unlock:
1766 hci_dev_unlock(hdev);
1767}
1768
1769static inline void hci_remote_version_evt(struct hci_dev *hdev, struct sk_buff *skb)
1770{
1771 BT_DBG("%s", hdev->name);
1772}
1773
1774static inline void hci_qos_setup_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1775{
1776 BT_DBG("%s", hdev->name);
1777}
1778
1779static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1780{
1781 struct hci_ev_cmd_complete *ev = (void *) skb->data;
1782 __u16 opcode;
1783
1784 skb_pull(skb, sizeof(*ev));
1785
1786 opcode = __le16_to_cpu(ev->opcode);
1787
1788 switch (opcode) {
1789 case HCI_OP_INQUIRY_CANCEL:
1790 hci_cc_inquiry_cancel(hdev, skb);
1791 break;
1792
1793 case HCI_OP_EXIT_PERIODIC_INQ:
1794 hci_cc_exit_periodic_inq(hdev, skb);
1795 break;
1796
1797 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
1798 hci_cc_remote_name_req_cancel(hdev, skb);
1799 break;
1800
1801 case HCI_OP_ROLE_DISCOVERY:
1802 hci_cc_role_discovery(hdev, skb);
1803 break;
1804
1805 case HCI_OP_READ_LINK_POLICY:
1806 hci_cc_read_link_policy(hdev, skb);
1807 break;
1808
1809 case HCI_OP_WRITE_LINK_POLICY:
1810 hci_cc_write_link_policy(hdev, skb);
1811 break;
1812
1813 case HCI_OP_READ_DEF_LINK_POLICY:
1814 hci_cc_read_def_link_policy(hdev, skb);
1815 break;
1816
1817 case HCI_OP_WRITE_DEF_LINK_POLICY:
1818 hci_cc_write_def_link_policy(hdev, skb);
1819 break;
1820
1821 case HCI_OP_RESET:
1822 hci_cc_reset(hdev, skb);
1823 break;
1824
1825 case HCI_OP_WRITE_LOCAL_NAME:
1826 hci_cc_write_local_name(hdev, skb);
1827 break;
1828
1829 case HCI_OP_READ_LOCAL_NAME:
1830 hci_cc_read_local_name(hdev, skb);
1831 break;
1832
1833 case HCI_OP_WRITE_AUTH_ENABLE:
1834 hci_cc_write_auth_enable(hdev, skb);
1835 break;
1836
1837 case HCI_OP_WRITE_ENCRYPT_MODE:
1838 hci_cc_write_encrypt_mode(hdev, skb);
1839 break;
1840
1841 case HCI_OP_WRITE_SCAN_ENABLE:
1842 hci_cc_write_scan_enable(hdev, skb);
1843 break;
1844
1845 case HCI_OP_READ_CLASS_OF_DEV:
1846 hci_cc_read_class_of_dev(hdev, skb);
1847 break;
1848
1849 case HCI_OP_WRITE_CLASS_OF_DEV:
1850 hci_cc_write_class_of_dev(hdev, skb);
1851 break;
1852
1853 case HCI_OP_READ_VOICE_SETTING:
1854 hci_cc_read_voice_setting(hdev, skb);
1855 break;
1856
1857 case HCI_OP_WRITE_VOICE_SETTING:
1858 hci_cc_write_voice_setting(hdev, skb);
1859 break;
1860
1861 case HCI_OP_HOST_BUFFER_SIZE:
1862 hci_cc_host_buffer_size(hdev, skb);
1863 break;
1864
1865 case HCI_OP_READ_SSP_MODE:
1866 hci_cc_read_ssp_mode(hdev, skb);
1867 break;
1868
1869 case HCI_OP_WRITE_SSP_MODE:
1870 hci_cc_write_ssp_mode(hdev, skb);
1871 break;
1872
1873 case HCI_OP_READ_LOCAL_VERSION:
1874 hci_cc_read_local_version(hdev, skb);
1875 break;
1876
1877 case HCI_OP_READ_LOCAL_COMMANDS:
1878 hci_cc_read_local_commands(hdev, skb);
1879 break;
1880
1881 case HCI_OP_READ_LOCAL_FEATURES:
1882 hci_cc_read_local_features(hdev, skb);
1883 break;
1884
1885 case HCI_OP_READ_LOCAL_EXT_FEATURES:
1886 hci_cc_read_local_ext_features(hdev, skb);
1887 break;
1888
1889 case HCI_OP_READ_BUFFER_SIZE:
1890 hci_cc_read_buffer_size(hdev, skb);
1891 break;
1892
1893 case HCI_OP_READ_BD_ADDR:
1894 hci_cc_read_bd_addr(hdev, skb);
1895 break;
1896
1897 case HCI_OP_WRITE_CA_TIMEOUT:
1898 hci_cc_write_ca_timeout(hdev, skb);
1899 break;
1900
1901 case HCI_OP_DELETE_STORED_LINK_KEY:
1902 hci_cc_delete_stored_link_key(hdev, skb);
1903 break;
1904
1905 case HCI_OP_SET_EVENT_MASK:
1906 hci_cc_set_event_mask(hdev, skb);
1907 break;
1908
1909 case HCI_OP_WRITE_INQUIRY_MODE:
1910 hci_cc_write_inquiry_mode(hdev, skb);
1911 break;
1912
1913 case HCI_OP_READ_INQ_RSP_TX_POWER:
1914 hci_cc_read_inq_rsp_tx_power(hdev, skb);
1915 break;
1916
1917 case HCI_OP_SET_EVENT_FLT:
1918 hci_cc_set_event_flt(hdev, skb);
1919 break;
1920
1921 case HCI_OP_PIN_CODE_REPLY:
1922 hci_cc_pin_code_reply(hdev, skb);
1923 break;
1924
1925 case HCI_OP_PIN_CODE_NEG_REPLY:
1926 hci_cc_pin_code_neg_reply(hdev, skb);
1927 break;
1928
1929 case HCI_OP_READ_LOCAL_OOB_DATA:
1930 hci_cc_read_local_oob_data_reply(hdev, skb);
1931 break;
1932
1933 case HCI_OP_LE_READ_BUFFER_SIZE:
1934 hci_cc_le_read_buffer_size(hdev, skb);
1935 break;
1936
1937 case HCI_OP_USER_CONFIRM_REPLY:
1938 hci_cc_user_confirm_reply(hdev, skb);
1939 break;
1940
1941 case HCI_OP_USER_CONFIRM_NEG_REPLY:
1942 hci_cc_user_confirm_neg_reply(hdev, skb);
1943 break;
1944
1945 case HCI_OP_LE_SET_SCAN_ENABLE:
1946 hci_cc_le_set_scan_enable(hdev, skb);
1947 break;
1948
1949 case HCI_OP_LE_LTK_REPLY:
1950 hci_cc_le_ltk_reply(hdev, skb);
1951 break;
1952
1953 case HCI_OP_LE_LTK_NEG_REPLY:
1954 hci_cc_le_ltk_neg_reply(hdev, skb);
1955 break;
1956
1957 case HCI_OP_WRITE_LE_HOST_SUPPORTED:
1958 hci_cc_write_le_host_supported(hdev, skb);
1959 break;
1960
1961 default:
1962 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
1963 break;
1964 }
1965
1966 if (ev->opcode != HCI_OP_NOP)
1967 del_timer(&hdev->cmd_timer);
1968
1969 if (ev->ncmd) {
1970 atomic_set(&hdev->cmd_cnt, 1);
1971 if (!skb_queue_empty(&hdev->cmd_q))
1972 tasklet_schedule(&hdev->cmd_task);
1973 }
1974}
1975
1976static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
1977{
1978 struct hci_ev_cmd_status *ev = (void *) skb->data;
1979 __u16 opcode;
1980
1981 skb_pull(skb, sizeof(*ev));
1982
1983 opcode = __le16_to_cpu(ev->opcode);
1984
1985 switch (opcode) {
1986 case HCI_OP_INQUIRY:
1987 hci_cs_inquiry(hdev, ev->status);
1988 break;
1989
1990 case HCI_OP_CREATE_CONN:
1991 hci_cs_create_conn(hdev, ev->status);
1992 break;
1993
1994 case HCI_OP_ADD_SCO:
1995 hci_cs_add_sco(hdev, ev->status);
1996 break;
1997
1998 case HCI_OP_AUTH_REQUESTED:
1999 hci_cs_auth_requested(hdev, ev->status);
2000 break;
2001
2002 case HCI_OP_SET_CONN_ENCRYPT:
2003 hci_cs_set_conn_encrypt(hdev, ev->status);
2004 break;
2005
2006 case HCI_OP_REMOTE_NAME_REQ:
2007 hci_cs_remote_name_req(hdev, ev->status);
2008 break;
2009
2010 case HCI_OP_READ_REMOTE_FEATURES:
2011 hci_cs_read_remote_features(hdev, ev->status);
2012 break;
2013
2014 case HCI_OP_READ_REMOTE_EXT_FEATURES:
2015 hci_cs_read_remote_ext_features(hdev, ev->status);
2016 break;
2017
2018 case HCI_OP_SETUP_SYNC_CONN:
2019 hci_cs_setup_sync_conn(hdev, ev->status);
2020 break;
2021
2022 case HCI_OP_SNIFF_MODE:
2023 hci_cs_sniff_mode(hdev, ev->status);
2024 break;
2025
2026 case HCI_OP_EXIT_SNIFF_MODE:
2027 hci_cs_exit_sniff_mode(hdev, ev->status);
2028 break;
2029
2030 case HCI_OP_DISCONNECT:
2031 if (ev->status != 0)
2032 mgmt_disconnect_failed(hdev->id);
2033 break;
2034
2035 case HCI_OP_LE_CREATE_CONN:
2036 hci_cs_le_create_conn(hdev, ev->status);
2037 break;
2038
2039 case HCI_OP_LE_START_ENC:
2040 hci_cs_le_start_enc(hdev, ev->status);
2041 break;
2042
2043 default:
2044 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
2045 break;
2046 }
2047
2048 if (ev->opcode != HCI_OP_NOP)
2049 del_timer(&hdev->cmd_timer);
2050
2051 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
2052 atomic_set(&hdev->cmd_cnt, 1);
2053 if (!skb_queue_empty(&hdev->cmd_q))
2054 tasklet_schedule(&hdev->cmd_task);
2055 }
2056}
2057
2058static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2059{
2060 struct hci_ev_role_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_ba(hdev, ACL_LINK, &ev->bdaddr);
2068 if (conn) {
2069 if (!ev->status) {
2070 if (ev->role)
2071 conn->link_mode &= ~HCI_LM_MASTER;
2072 else
2073 conn->link_mode |= HCI_LM_MASTER;
2074 }
2075
2076 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->pend);
2077
2078 hci_role_switch_cfm(conn, ev->status, ev->role);
2079 }
2080
2081 hci_dev_unlock(hdev);
2082}
2083
2084static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
2085{
2086 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
2087 __le16 *ptr;
2088 int i;
2089
2090 skb_pull(skb, sizeof(*ev));
2091
2092 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
2093
2094 if (skb->len < ev->num_hndl * 4) {
2095 BT_DBG("%s bad parameters", hdev->name);
2096 return;
2097 }
2098
2099 tasklet_disable(&hdev->tx_task);
2100
2101 for (i = 0, ptr = (__le16 *) skb->data; i < ev->num_hndl; i++) {
2102 struct hci_conn *conn;
2103 __u16 handle, count;
2104
2105 handle = get_unaligned_le16(ptr++);
2106 count = get_unaligned_le16(ptr++);
2107
2108 conn = hci_conn_hash_lookup_handle(hdev, handle);
2109 if (conn) {
2110 conn->sent -= count;
2111
2112 if (conn->type == ACL_LINK) {
2113 hdev->acl_cnt += count;
2114 if (hdev->acl_cnt > hdev->acl_pkts)
2115 hdev->acl_cnt = hdev->acl_pkts;
2116 } else if (conn->type == LE_LINK) {
2117 if (hdev->le_pkts) {
2118 hdev->le_cnt += count;
2119 if (hdev->le_cnt > hdev->le_pkts)
2120 hdev->le_cnt = hdev->le_pkts;
2121 } else {
2122 hdev->acl_cnt += count;
2123 if (hdev->acl_cnt > hdev->acl_pkts)
2124 hdev->acl_cnt = hdev->acl_pkts;
2125 }
2126 } else {
2127 hdev->sco_cnt += count;
2128 if (hdev->sco_cnt > hdev->sco_pkts)
2129 hdev->sco_cnt = hdev->sco_pkts;
2130 }
2131 }
2132 }
2133
2134 tasklet_schedule(&hdev->tx_task);
2135
2136 tasklet_enable(&hdev->tx_task);
2137}
2138
2139static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2140{
2141 struct hci_ev_mode_change *ev = (void *) skb->data;
2142 struct hci_conn *conn;
2143
2144 BT_DBG("%s status %d", hdev->name, ev->status);
2145
2146 hci_dev_lock(hdev);
2147
2148 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2149 if (conn) {
2150 conn->mode = ev->mode;
2151 conn->interval = __le16_to_cpu(ev->interval);
2152
2153 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
2154 if (conn->mode == HCI_CM_ACTIVE)
2155 conn->power_save = 1;
2156 else
2157 conn->power_save = 0;
2158 }
2159
2160 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->pend))
2161 hci_sco_setup(conn, ev->status);
2162 }
2163
2164 hci_dev_unlock(hdev);
2165}
2166
2167static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2168{
2169 struct hci_ev_pin_code_req *ev = (void *) skb->data;
2170 struct hci_conn *conn;
2171
2172 BT_DBG("%s", hdev->name);
2173
2174 hci_dev_lock(hdev);
2175
2176 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2177 if (conn && conn->state == BT_CONNECTED) {
2178 hci_conn_hold(conn);
2179 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
2180 hci_conn_put(conn);
2181 }
2182
2183 if (!test_bit(HCI_PAIRABLE, &hdev->flags))
2184 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
2185 sizeof(ev->bdaddr), &ev->bdaddr);
2186 else if (test_bit(HCI_MGMT, &hdev->flags)) {
2187 u8 secure;
2188
2189 if (conn->pending_sec_level == BT_SECURITY_HIGH)
2190 secure = 1;
2191 else
2192 secure = 0;
2193
2194 mgmt_pin_code_request(hdev->id, &ev->bdaddr, secure);
2195 }
2196
2197 hci_dev_unlock(hdev);
2198}
2199
2200static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2201{
2202 struct hci_ev_link_key_req *ev = (void *) skb->data;
2203 struct hci_cp_link_key_reply cp;
2204 struct hci_conn *conn;
2205 struct link_key *key;
2206
2207 BT_DBG("%s", hdev->name);
2208
2209 if (!test_bit(HCI_LINK_KEYS, &hdev->flags))
2210 return;
2211
2212 hci_dev_lock(hdev);
2213
2214 key = hci_find_link_key(hdev, &ev->bdaddr);
2215 if (!key) {
2216 BT_DBG("%s link key not found for %s", hdev->name,
2217 batostr(&ev->bdaddr));
2218 goto not_found;
2219 }
2220
2221 BT_DBG("%s found key type %u for %s", hdev->name, key->type,
2222 batostr(&ev->bdaddr));
2223
2224 if (!test_bit(HCI_DEBUG_KEYS, &hdev->flags) &&
2225 key->type == HCI_LK_DEBUG_COMBINATION) {
2226 BT_DBG("%s ignoring debug key", hdev->name);
2227 goto not_found;
2228 }
2229
2230 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2231 if (conn) {
2232 if (key->type == HCI_LK_UNAUTH_COMBINATION &&
2233 conn->auth_type != 0xff &&
2234 (conn->auth_type & 0x01)) {
2235 BT_DBG("%s ignoring unauthenticated key", hdev->name);
2236 goto not_found;
2237 }
2238
2239 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
2240 conn->pending_sec_level == BT_SECURITY_HIGH) {
2241 BT_DBG("%s ignoring key unauthenticated for high \
2242 security", hdev->name);
2243 goto not_found;
2244 }
2245
2246 conn->key_type = key->type;
2247 conn->pin_length = key->pin_len;
2248 }
2249
2250 bacpy(&cp.bdaddr, &ev->bdaddr);
2251 memcpy(cp.link_key, key->val, 16);
2252
2253 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
2254
2255 hci_dev_unlock(hdev);
2256
2257 return;
2258
2259not_found:
2260 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
2261 hci_dev_unlock(hdev);
2262}
2263
2264static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
2265{
2266 struct hci_ev_link_key_notify *ev = (void *) skb->data;
2267 struct hci_conn *conn;
2268 u8 pin_len = 0;
2269
2270 BT_DBG("%s", hdev->name);
2271
2272 hci_dev_lock(hdev);
2273
2274 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2275 if (conn) {
2276 hci_conn_hold(conn);
2277 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2278 pin_len = conn->pin_length;
2279
2280 if (ev->key_type != HCI_LK_CHANGED_COMBINATION)
2281 conn->key_type = ev->key_type;
2282
2283 hci_conn_put(conn);
2284 }
2285
2286 if (test_bit(HCI_LINK_KEYS, &hdev->flags))
2287 hci_add_link_key(hdev, conn, 1, &ev->bdaddr, ev->link_key,
2288 ev->key_type, pin_len);
2289
2290 hci_dev_unlock(hdev);
2291}
2292
2293static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
2294{
2295 struct hci_ev_clock_offset *ev = (void *) skb->data;
2296 struct hci_conn *conn;
2297
2298 BT_DBG("%s status %d", hdev->name, ev->status);
2299
2300 hci_dev_lock(hdev);
2301
2302 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2303 if (conn && !ev->status) {
2304 struct inquiry_entry *ie;
2305
2306 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
2307 if (ie) {
2308 ie->data.clock_offset = ev->clock_offset;
2309 ie->timestamp = jiffies;
2310 }
2311 }
2312
2313 hci_dev_unlock(hdev);
2314}
2315
2316static inline void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2317{
2318 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
2319 struct hci_conn *conn;
2320
2321 BT_DBG("%s status %d", hdev->name, ev->status);
2322
2323 hci_dev_lock(hdev);
2324
2325 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2326 if (conn && !ev->status)
2327 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
2328
2329 hci_dev_unlock(hdev);
2330}
2331
2332static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
2333{
2334 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
2335 struct inquiry_entry *ie;
2336
2337 BT_DBG("%s", hdev->name);
2338
2339 hci_dev_lock(hdev);
2340
2341 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2342 if (ie) {
2343 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
2344 ie->timestamp = jiffies;
2345 }
2346
2347 hci_dev_unlock(hdev);
2348}
2349
2350static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
2351{
2352 struct inquiry_data data;
2353 int num_rsp = *((__u8 *) skb->data);
2354
2355 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
2356
2357 if (!num_rsp)
2358 return;
2359
2360 hci_dev_lock(hdev);
2361
2362 if (!test_and_set_bit(HCI_INQUIRY, &hdev->flags)) {
2363
2364 if (test_bit(HCI_MGMT, &hdev->flags))
2365 mgmt_discovering(hdev->id, 1);
2366 }
2367
2368 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
2369 struct inquiry_info_with_rssi_and_pscan_mode *info;
2370 info = (void *) (skb->data + 1);
2371
2372 for (; num_rsp; num_rsp--, info++) {
2373 bacpy(&data.bdaddr, &info->bdaddr);
2374 data.pscan_rep_mode = info->pscan_rep_mode;
2375 data.pscan_period_mode = info->pscan_period_mode;
2376 data.pscan_mode = info->pscan_mode;
2377 memcpy(data.dev_class, info->dev_class, 3);
2378 data.clock_offset = info->clock_offset;
2379 data.rssi = info->rssi;
2380 data.ssp_mode = 0x00;
2381 hci_inquiry_cache_update(hdev, &data);
2382 mgmt_device_found(hdev->id, &info->bdaddr,
2383 info->dev_class, info->rssi,
2384 NULL);
2385 }
2386 } else {
2387 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
2388
2389 for (; num_rsp; num_rsp--, info++) {
2390 bacpy(&data.bdaddr, &info->bdaddr);
2391 data.pscan_rep_mode = info->pscan_rep_mode;
2392 data.pscan_period_mode = info->pscan_period_mode;
2393 data.pscan_mode = 0x00;
2394 memcpy(data.dev_class, info->dev_class, 3);
2395 data.clock_offset = info->clock_offset;
2396 data.rssi = info->rssi;
2397 data.ssp_mode = 0x00;
2398 hci_inquiry_cache_update(hdev, &data);
2399 mgmt_device_found(hdev->id, &info->bdaddr,
2400 info->dev_class, info->rssi,
2401 NULL);
2402 }
2403 }
2404
2405 hci_dev_unlock(hdev);
2406}
2407
2408static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
2409{
2410 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
2411 struct hci_conn *conn;
2412
2413 BT_DBG("%s", hdev->name);
2414
2415 hci_dev_lock(hdev);
2416
2417 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2418 if (!conn)
2419 goto unlock;
2420
2421 if (!ev->status && ev->page == 0x01) {
2422 struct inquiry_entry *ie;
2423
2424 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
2425 if (ie)
2426 ie->data.ssp_mode = (ev->features[0] & 0x01);
2427
2428 conn->ssp_mode = (ev->features[0] & 0x01);
2429 }
2430
2431 if (conn->state != BT_CONFIG)
2432 goto unlock;
2433
2434 if (!ev->status) {
2435 struct hci_cp_remote_name_req cp;
2436 memset(&cp, 0, sizeof(cp));
2437 bacpy(&cp.bdaddr, &conn->dst);
2438 cp.pscan_rep_mode = 0x02;
2439 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2440 }
2441
2442 if (!hci_outgoing_auth_needed(hdev, conn)) {
2443 conn->state = BT_CONNECTED;
2444 hci_proto_connect_cfm(conn, ev->status);
2445 hci_conn_put(conn);
2446 }
2447
2448unlock:
2449 hci_dev_unlock(hdev);
2450}
2451
2452static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2453{
2454 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
2455 struct hci_conn *conn;
2456
2457 BT_DBG("%s status %d", hdev->name, ev->status);
2458
2459 hci_dev_lock(hdev);
2460
2461 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
2462 if (!conn) {
2463 if (ev->link_type == ESCO_LINK)
2464 goto unlock;
2465
2466 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
2467 if (!conn)
2468 goto unlock;
2469
2470 conn->type = SCO_LINK;
2471 }
2472
2473 switch (ev->status) {
2474 case 0x00:
2475 conn->handle = __le16_to_cpu(ev->handle);
2476 conn->state = BT_CONNECTED;
2477
2478 hci_conn_hold_device(conn);
2479 hci_conn_add_sysfs(conn);
2480 break;
2481
2482 case 0x11: /* Unsupported Feature or Parameter Value */
2483 case 0x1c: /* SCO interval rejected */
2484 case 0x1a: /* Unsupported Remote Feature */
2485 case 0x1f: /* Unspecified error */
2486 if (conn->out && conn->attempt < 2) {
2487 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
2488 (hdev->esco_type & EDR_ESCO_MASK);
2489 hci_setup_sync(conn, conn->link->handle);
2490 goto unlock;
2491 }
2492 /* fall through */
2493
2494 default:
2495 conn->state = BT_CLOSED;
2496 break;
2497 }
2498
2499 hci_proto_connect_cfm(conn, ev->status);
2500 if (ev->status)
2501 hci_conn_del(conn);
2502
2503unlock:
2504 hci_dev_unlock(hdev);
2505}
2506
2507static inline void hci_sync_conn_changed_evt(struct hci_dev *hdev, struct sk_buff *skb)
2508{
2509 BT_DBG("%s", hdev->name);
2510}
2511
2512static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
2513{
2514 struct hci_ev_sniff_subrate *ev = (void *) skb->data;
2515
2516 BT_DBG("%s status %d", hdev->name, ev->status);
2517}
2518
2519static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
2520{
2521 struct inquiry_data data;
2522 struct extended_inquiry_info *info = (void *) (skb->data + 1);
2523 int num_rsp = *((__u8 *) skb->data);
2524
2525 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
2526
2527 if (!num_rsp)
2528 return;
2529
2530 if (!test_and_set_bit(HCI_INQUIRY, &hdev->flags)) {
2531
2532 if (test_bit(HCI_MGMT, &hdev->flags))
2533 mgmt_discovering(hdev->id, 1);
2534 }
2535
2536 hci_dev_lock(hdev);
2537
2538 for (; num_rsp; num_rsp--, info++) {
2539 bacpy(&data.bdaddr, &info->bdaddr);
2540 data.pscan_rep_mode = info->pscan_rep_mode;
2541 data.pscan_period_mode = info->pscan_period_mode;
2542 data.pscan_mode = 0x00;
2543 memcpy(data.dev_class, info->dev_class, 3);
2544 data.clock_offset = info->clock_offset;
2545 data.rssi = info->rssi;
2546 data.ssp_mode = 0x01;
2547 hci_inquiry_cache_update(hdev, &data);
2548 mgmt_device_found(hdev->id, &info->bdaddr, info->dev_class,
2549 info->rssi, info->data);
2550 }
2551
2552 hci_dev_unlock(hdev);
2553}
2554
2555static inline u8 hci_get_auth_req(struct hci_conn *conn)
2556{
2557 /* If remote requests dedicated bonding follow that lead */
2558 if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03) {
2559 /* If both remote and local IO capabilities allow MITM
2560 * protection then require it, otherwise don't */
2561 if (conn->remote_cap == 0x03 || conn->io_capability == 0x03)
2562 return 0x02;
2563 else
2564 return 0x03;
2565 }
2566
2567 /* If remote requests no-bonding follow that lead */
2568 if (conn->remote_auth == 0x00 || conn->remote_auth == 0x01)
2569 return conn->remote_auth | (conn->auth_type & 0x01);
2570
2571 return conn->auth_type;
2572}
2573
2574static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2575{
2576 struct hci_ev_io_capa_request *ev = (void *) skb->data;
2577 struct hci_conn *conn;
2578
2579 BT_DBG("%s", hdev->name);
2580
2581 hci_dev_lock(hdev);
2582
2583 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2584 if (!conn)
2585 goto unlock;
2586
2587 hci_conn_hold(conn);
2588
2589 if (!test_bit(HCI_MGMT, &hdev->flags))
2590 goto unlock;
2591
2592 if (test_bit(HCI_PAIRABLE, &hdev->flags) ||
2593 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
2594 struct hci_cp_io_capability_reply cp;
2595
2596 bacpy(&cp.bdaddr, &ev->bdaddr);
2597 cp.capability = conn->io_capability;
2598 conn->auth_type = hci_get_auth_req(conn);
2599 cp.authentication = conn->auth_type;
2600
2601 if ((conn->out == 0x01 || conn->remote_oob == 0x01) &&
2602 hci_find_remote_oob_data(hdev, &conn->dst))
2603 cp.oob_data = 0x01;
2604 else
2605 cp.oob_data = 0x00;
2606
2607 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
2608 sizeof(cp), &cp);
2609 } else {
2610 struct hci_cp_io_capability_neg_reply cp;
2611
2612 bacpy(&cp.bdaddr, &ev->bdaddr);
2613 cp.reason = 0x18; /* Pairing not allowed */
2614
2615 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
2616 sizeof(cp), &cp);
2617 }
2618
2619unlock:
2620 hci_dev_unlock(hdev);
2621}
2622
2623static inline void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
2624{
2625 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
2626 struct hci_conn *conn;
2627
2628 BT_DBG("%s", hdev->name);
2629
2630 hci_dev_lock(hdev);
2631
2632 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2633 if (!conn)
2634 goto unlock;
2635
2636 conn->remote_cap = ev->capability;
2637 conn->remote_oob = ev->oob_data;
2638 conn->remote_auth = ev->authentication;
2639
2640unlock:
2641 hci_dev_unlock(hdev);
2642}
2643
2644static inline void hci_user_confirm_request_evt(struct hci_dev *hdev,
2645 struct sk_buff *skb)
2646{
2647 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
2648 int loc_mitm, rem_mitm, confirm_hint = 0;
2649 struct hci_conn *conn;
2650
2651 BT_DBG("%s", hdev->name);
2652
2653 hci_dev_lock(hdev);
2654
2655 if (!test_bit(HCI_MGMT, &hdev->flags))
2656 goto unlock;
2657
2658 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2659 if (!conn)
2660 goto unlock;
2661
2662 loc_mitm = (conn->auth_type & 0x01);
2663 rem_mitm = (conn->remote_auth & 0x01);
2664
2665 /* If we require MITM but the remote device can't provide that
2666 * (it has NoInputNoOutput) then reject the confirmation
2667 * request. The only exception is when we're dedicated bonding
2668 * initiators (connect_cfm_cb set) since then we always have the MITM
2669 * bit set. */
2670 if (!conn->connect_cfm_cb && loc_mitm && conn->remote_cap == 0x03) {
2671 BT_DBG("Rejecting request: remote device can't provide MITM");
2672 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
2673 sizeof(ev->bdaddr), &ev->bdaddr);
2674 goto unlock;
2675 }
2676
2677 /* If no side requires MITM protection; auto-accept */
2678 if ((!loc_mitm || conn->remote_cap == 0x03) &&
2679 (!rem_mitm || conn->io_capability == 0x03)) {
2680
2681 /* If we're not the initiators request authorization to
2682 * proceed from user space (mgmt_user_confirm with
2683 * confirm_hint set to 1). */
2684 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
2685 BT_DBG("Confirming auto-accept as acceptor");
2686 confirm_hint = 1;
2687 goto confirm;
2688 }
2689
2690 BT_DBG("Auto-accept of user confirmation with %ums delay",
2691 hdev->auto_accept_delay);
2692
2693 if (hdev->auto_accept_delay > 0) {
2694 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
2695 mod_timer(&conn->auto_accept_timer, jiffies + delay);
2696 goto unlock;
2697 }
2698
2699 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
2700 sizeof(ev->bdaddr), &ev->bdaddr);
2701 goto unlock;
2702 }
2703
2704confirm:
2705 mgmt_user_confirm_request(hdev->id, &ev->bdaddr, ev->passkey,
2706 confirm_hint);
2707
2708unlock:
2709 hci_dev_unlock(hdev);
2710}
2711
2712static inline void hci_simple_pair_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2713{
2714 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
2715 struct hci_conn *conn;
2716
2717 BT_DBG("%s", hdev->name);
2718
2719 hci_dev_lock(hdev);
2720
2721 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2722 if (!conn)
2723 goto unlock;
2724
2725 /* To avoid duplicate auth_failed events to user space we check
2726 * the HCI_CONN_AUTH_PEND flag which will be set if we
2727 * initiated the authentication. A traditional auth_complete
2728 * event gets always produced as initiator and is also mapped to
2729 * the mgmt_auth_failed event */
2730 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->pend) && ev->status != 0)
2731 mgmt_auth_failed(hdev->id, &conn->dst, ev->status);
2732
2733 hci_conn_put(conn);
2734
2735unlock:
2736 hci_dev_unlock(hdev);
2737}
2738
2739static inline void hci_remote_host_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
2740{
2741 struct hci_ev_remote_host_features *ev = (void *) skb->data;
2742 struct inquiry_entry *ie;
2743
2744 BT_DBG("%s", hdev->name);
2745
2746 hci_dev_lock(hdev);
2747
2748 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2749 if (ie)
2750 ie->data.ssp_mode = (ev->features[0] & 0x01);
2751
2752 hci_dev_unlock(hdev);
2753}
2754
2755static inline void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
2756 struct sk_buff *skb)
2757{
2758 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
2759 struct oob_data *data;
2760
2761 BT_DBG("%s", hdev->name);
2762
2763 hci_dev_lock(hdev);
2764
2765 if (!test_bit(HCI_MGMT, &hdev->flags))
2766 goto unlock;
2767
2768 data = hci_find_remote_oob_data(hdev, &ev->bdaddr);
2769 if (data) {
2770 struct hci_cp_remote_oob_data_reply cp;
2771
2772 bacpy(&cp.bdaddr, &ev->bdaddr);
2773 memcpy(cp.hash, data->hash, sizeof(cp.hash));
2774 memcpy(cp.randomizer, data->randomizer, sizeof(cp.randomizer));
2775
2776 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY, sizeof(cp),
2777 &cp);
2778 } else {
2779 struct hci_cp_remote_oob_data_neg_reply cp;
2780
2781 bacpy(&cp.bdaddr, &ev->bdaddr);
2782 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY, sizeof(cp),
2783 &cp);
2784 }
2785
2786unlock:
2787 hci_dev_unlock(hdev);
2788}
2789
2790static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2791{
2792 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
2793 struct hci_conn *conn;
2794
2795 BT_DBG("%s status %d", hdev->name, ev->status);
2796
2797 hci_dev_lock(hdev);
2798
2799 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &ev->bdaddr);
2800 if (!conn) {
2801 conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr);
2802 if (!conn) {
2803 BT_ERR("No memory for new connection");
2804 hci_dev_unlock(hdev);
2805 return;
2806 }
2807
2808 conn->dst_type = ev->bdaddr_type;
2809 }
2810
2811 if (ev->status) {
2812 mgmt_connect_failed(hdev->id, &ev->bdaddr, ev->status);
2813 hci_proto_connect_cfm(conn, ev->status);
2814 conn->state = BT_CLOSED;
2815 hci_conn_del(conn);
2816 goto unlock;
2817 }
2818
2819 mgmt_connected(hdev->id, &ev->bdaddr);
2820
2821 conn->sec_level = BT_SECURITY_LOW;
2822 conn->handle = __le16_to_cpu(ev->handle);
2823 conn->state = BT_CONNECTED;
2824
2825 hci_conn_hold_device(conn);
2826 hci_conn_add_sysfs(conn);
2827
2828 hci_proto_connect_cfm(conn, ev->status);
2829
2830unlock:
2831 hci_dev_unlock(hdev);
2832}
2833
2834static inline void hci_le_adv_report_evt(struct hci_dev *hdev,
2835 struct sk_buff *skb)
2836{
2837 struct hci_ev_le_advertising_info *ev;
2838 u8 num_reports;
2839
2840 num_reports = skb->data[0];
2841 ev = (void *) &skb->data[1];
2842
2843 hci_dev_lock(hdev);
2844
2845 hci_add_adv_entry(hdev, ev);
2846
2847 while (--num_reports) {
2848 ev = (void *) (ev->data + ev->length + 1);
2849 hci_add_adv_entry(hdev, ev);
2850 }
2851
2852 hci_dev_unlock(hdev);
2853}
2854
2855static inline void hci_le_ltk_request_evt(struct hci_dev *hdev,
2856 struct sk_buff *skb)
2857{
2858 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
2859 struct hci_cp_le_ltk_reply cp;
2860 struct hci_cp_le_ltk_neg_reply neg;
2861 struct hci_conn *conn;
2862 struct link_key *ltk;
2863
2864 BT_DBG("%s handle %d", hdev->name, cpu_to_le16(ev->handle));
2865
2866 hci_dev_lock(hdev);
2867
2868 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2869 if (conn == NULL)
2870 goto not_found;
2871
2872 ltk = hci_find_ltk(hdev, ev->ediv, ev->random);
2873 if (ltk == NULL)
2874 goto not_found;
2875
2876 memcpy(cp.ltk, ltk->val, sizeof(ltk->val));
2877 cp.handle = cpu_to_le16(conn->handle);
2878 conn->pin_length = ltk->pin_len;
2879
2880 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
2881
2882 hci_dev_unlock(hdev);
2883
2884 return;
2885
2886not_found:
2887 neg.handle = ev->handle;
2888 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
2889 hci_dev_unlock(hdev);
2890}
2891
2892static inline void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
2893{
2894 struct hci_ev_le_meta *le_ev = (void *) skb->data;
2895
2896 skb_pull(skb, sizeof(*le_ev));
2897
2898 switch (le_ev->subevent) {
2899 case HCI_EV_LE_CONN_COMPLETE:
2900 hci_le_conn_complete_evt(hdev, skb);
2901 break;
2902
2903 case HCI_EV_LE_ADVERTISING_REPORT:
2904 hci_le_adv_report_evt(hdev, skb);
2905 break;
2906
2907 case HCI_EV_LE_LTK_REQ:
2908 hci_le_ltk_request_evt(hdev, skb);
2909 break;
2910
2911 default:
2912 break;
2913 }
2914}
2915
2916void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
2917{
2918 struct hci_event_hdr *hdr = (void *) skb->data;
2919 __u8 event = hdr->evt;
2920
2921 skb_pull(skb, HCI_EVENT_HDR_SIZE);
2922
2923 switch (event) {
2924 case HCI_EV_INQUIRY_COMPLETE:
2925 hci_inquiry_complete_evt(hdev, skb);
2926 break;
2927
2928 case HCI_EV_INQUIRY_RESULT:
2929 hci_inquiry_result_evt(hdev, skb);
2930 break;
2931
2932 case HCI_EV_CONN_COMPLETE:
2933 hci_conn_complete_evt(hdev, skb);
2934 break;
2935
2936 case HCI_EV_CONN_REQUEST:
2937 hci_conn_request_evt(hdev, skb);
2938 break;
2939
2940 case HCI_EV_DISCONN_COMPLETE:
2941 hci_disconn_complete_evt(hdev, skb);
2942 break;
2943
2944 case HCI_EV_AUTH_COMPLETE:
2945 hci_auth_complete_evt(hdev, skb);
2946 break;
2947
2948 case HCI_EV_REMOTE_NAME:
2949 hci_remote_name_evt(hdev, skb);
2950 break;
2951
2952 case HCI_EV_ENCRYPT_CHANGE:
2953 hci_encrypt_change_evt(hdev, skb);
2954 break;
2955
2956 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
2957 hci_change_link_key_complete_evt(hdev, skb);
2958 break;
2959
2960 case HCI_EV_REMOTE_FEATURES:
2961 hci_remote_features_evt(hdev, skb);
2962 break;
2963
2964 case HCI_EV_REMOTE_VERSION:
2965 hci_remote_version_evt(hdev, skb);
2966 break;
2967
2968 case HCI_EV_QOS_SETUP_COMPLETE:
2969 hci_qos_setup_complete_evt(hdev, skb);
2970 break;
2971
2972 case HCI_EV_CMD_COMPLETE:
2973 hci_cmd_complete_evt(hdev, skb);
2974 break;
2975
2976 case HCI_EV_CMD_STATUS:
2977 hci_cmd_status_evt(hdev, skb);
2978 break;
2979
2980 case HCI_EV_ROLE_CHANGE:
2981 hci_role_change_evt(hdev, skb);
2982 break;
2983
2984 case HCI_EV_NUM_COMP_PKTS:
2985 hci_num_comp_pkts_evt(hdev, skb);
2986 break;
2987
2988 case HCI_EV_MODE_CHANGE:
2989 hci_mode_change_evt(hdev, skb);
2990 break;
2991
2992 case HCI_EV_PIN_CODE_REQ:
2993 hci_pin_code_request_evt(hdev, skb);
2994 break;
2995
2996 case HCI_EV_LINK_KEY_REQ:
2997 hci_link_key_request_evt(hdev, skb);
2998 break;
2999
3000 case HCI_EV_LINK_KEY_NOTIFY:
3001 hci_link_key_notify_evt(hdev, skb);
3002 break;
3003
3004 case HCI_EV_CLOCK_OFFSET:
3005 hci_clock_offset_evt(hdev, skb);
3006 break;
3007
3008 case HCI_EV_PKT_TYPE_CHANGE:
3009 hci_pkt_type_change_evt(hdev, skb);
3010 break;
3011
3012 case HCI_EV_PSCAN_REP_MODE:
3013 hci_pscan_rep_mode_evt(hdev, skb);
3014 break;
3015
3016 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
3017 hci_inquiry_result_with_rssi_evt(hdev, skb);
3018 break;
3019
3020 case HCI_EV_REMOTE_EXT_FEATURES:
3021 hci_remote_ext_features_evt(hdev, skb);
3022 break;
3023
3024 case HCI_EV_SYNC_CONN_COMPLETE:
3025 hci_sync_conn_complete_evt(hdev, skb);
3026 break;
3027
3028 case HCI_EV_SYNC_CONN_CHANGED:
3029 hci_sync_conn_changed_evt(hdev, skb);
3030 break;
3031
3032 case HCI_EV_SNIFF_SUBRATE:
3033 hci_sniff_subrate_evt(hdev, skb);
3034 break;
3035
3036 case HCI_EV_EXTENDED_INQUIRY_RESULT:
3037 hci_extended_inquiry_result_evt(hdev, skb);
3038 break;
3039
3040 case HCI_EV_IO_CAPA_REQUEST:
3041 hci_io_capa_request_evt(hdev, skb);
3042 break;
3043
3044 case HCI_EV_IO_CAPA_REPLY:
3045 hci_io_capa_reply_evt(hdev, skb);
3046 break;
3047
3048 case HCI_EV_USER_CONFIRM_REQUEST:
3049 hci_user_confirm_request_evt(hdev, skb);
3050 break;
3051
3052 case HCI_EV_SIMPLE_PAIR_COMPLETE:
3053 hci_simple_pair_complete_evt(hdev, skb);
3054 break;
3055
3056 case HCI_EV_REMOTE_HOST_FEATURES:
3057 hci_remote_host_features_evt(hdev, skb);
3058 break;
3059
3060 case HCI_EV_LE_META:
3061 hci_le_meta_evt(hdev, skb);
3062 break;
3063
3064 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
3065 hci_remote_oob_data_request_evt(hdev, skb);
3066 break;
3067
3068 default:
3069 BT_DBG("%s event 0x%x", hdev->name, event);
3070 break;
3071 }
3072
3073 kfree_skb(skb);
3074 hdev->stat.evt_rx++;
3075}
3076
3077/* Generate internal stack event */
3078void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
3079{
3080 struct hci_event_hdr *hdr;
3081 struct hci_ev_stack_internal *ev;
3082 struct sk_buff *skb;
3083
3084 skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC);
3085 if (!skb)
3086 return;
3087
3088 hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE);
3089 hdr->evt = HCI_EV_STACK_INTERNAL;
3090 hdr->plen = sizeof(*ev) + dlen;
3091
3092 ev = (void *) skb_put(skb, sizeof(*ev) + dlen);
3093 ev->type = type;
3094 memcpy(ev->data, data, dlen);
3095
3096 bt_cb(skb)->incoming = 1;
3097 __net_timestamp(skb);
3098
3099 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
3100 skb->dev = (void *) hdev;
3101 hci_send_to_sock(hdev, skb, NULL);
3102 kfree_skb(skb);
3103}
3104
3105module_param(enable_le, bool, 0444);
3106MODULE_PARM_DESC(enable_le, "Enable LE support");