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192.168.1.100 / T800 / b04a402ae4328aad41335d93cebd3484973ab7c2 / . / src / kernel / linux / v4.19 / net / bluetooth / hci_event.c
blob: 3e7badb3ac2d50fd8516bd87d08a3c424e9e6cb9 [file] [log] [blame]
xjb04a4022021-11-25 15:01:52 +0800[diff] [blame^]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_local_features(struct hci_dev *hdev,
583 struct sk_buff *skb)
584{
585 struct hci_rp_read_local_features *rp = (void *) skb->data;
586
587 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
588
589 if (rp->status)
590 return;
591
592 memcpy(hdev->features, rp->features, 8);
593
594 /* Adjust default settings according to features
595 * supported by device. */
596
597 if (hdev->features[0][0] & LMP_3SLOT)
598 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
599
600 if (hdev->features[0][0] & LMP_5SLOT)
601 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
602
603 if (hdev->features[0][1] & LMP_HV2) {
604 hdev->pkt_type |= (HCI_HV2);
605 hdev->esco_type |= (ESCO_HV2);
606 }
607
608 if (hdev->features[0][1] & LMP_HV3) {
609 hdev->pkt_type |= (HCI_HV3);
610 hdev->esco_type |= (ESCO_HV3);
611 }
612
613 if (lmp_esco_capable(hdev))
614 hdev->esco_type |= (ESCO_EV3);
615
616 if (hdev->features[0][4] & LMP_EV4)
617 hdev->esco_type |= (ESCO_EV4);
618
619 if (hdev->features[0][4] & LMP_EV5)
620 hdev->esco_type |= (ESCO_EV5);
621
622 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
623 hdev->esco_type |= (ESCO_2EV3);
624
625 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
626 hdev->esco_type |= (ESCO_3EV3);
627
628 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
629 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
630}
631
632static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
633 struct sk_buff *skb)
634{
635 struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
636
637 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
638
639 if (rp->status)
640 return;
641
642 if (hdev->max_page < rp->max_page)
643 hdev->max_page = rp->max_page;
644
645 if (rp->page < HCI_MAX_PAGES)
646 memcpy(hdev->features[rp->page], rp->features, 8);
647}
648
649static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
650 struct sk_buff *skb)
651{
652 struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
653
654 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
655
656 if (rp->status)
657 return;
658
659 hdev->flow_ctl_mode = rp->mode;
660}
661
662static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
663{
664 struct hci_rp_read_buffer_size *rp = (void *) skb->data;
665
666 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
667
668 if (rp->status)
669 return;
670
671 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
672 hdev->sco_mtu = rp->sco_mtu;
673 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
674 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
675
676 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
677 hdev->sco_mtu = 64;
678 hdev->sco_pkts = 8;
679 }
680
681 hdev->acl_cnt = hdev->acl_pkts;
682 hdev->sco_cnt = hdev->sco_pkts;
683
684 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
685 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
686}
687
688static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
689{
690 struct hci_rp_read_bd_addr *rp = (void *) skb->data;
691
692 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
693
694 if (rp->status)
695 return;
696
697 if (test_bit(HCI_INIT, &hdev->flags))
698 bacpy(&hdev->bdaddr, &rp->bdaddr);
699
700 if (hci_dev_test_flag(hdev, HCI_SETUP))
701 bacpy(&hdev->setup_addr, &rp->bdaddr);
702}
703
704static void hci_cc_read_page_scan_activity(struct hci_dev *hdev,
705 struct sk_buff *skb)
706{
707 struct hci_rp_read_page_scan_activity *rp = (void *) skb->data;
708
709 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
710
711 if (rp->status)
712 return;
713
714 if (test_bit(HCI_INIT, &hdev->flags)) {
715 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
716 hdev->page_scan_window = __le16_to_cpu(rp->window);
717 }
718}
719
720static void hci_cc_write_page_scan_activity(struct hci_dev *hdev,
721 struct sk_buff *skb)
722{
723 u8 status = *((u8 *) skb->data);
724 struct hci_cp_write_page_scan_activity *sent;
725
726 BT_DBG("%s status 0x%2.2x", hdev->name, status);
727
728 if (status)
729 return;
730
731 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
732 if (!sent)
733 return;
734
735 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
736 hdev->page_scan_window = __le16_to_cpu(sent->window);
737}
738
739static void hci_cc_read_page_scan_type(struct hci_dev *hdev,
740 struct sk_buff *skb)
741{
742 struct hci_rp_read_page_scan_type *rp = (void *) skb->data;
743
744 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
745
746 if (rp->status)
747 return;
748
749 if (test_bit(HCI_INIT, &hdev->flags))
750 hdev->page_scan_type = rp->type;
751}
752
753static void hci_cc_write_page_scan_type(struct hci_dev *hdev,
754 struct sk_buff *skb)
755{
756 u8 status = *((u8 *) skb->data);
757 u8 *type;
758
759 BT_DBG("%s status 0x%2.2x", hdev->name, status);
760
761 if (status)
762 return;
763
764 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
765 if (type)
766 hdev->page_scan_type = *type;
767}
768
769static void hci_cc_read_data_block_size(struct hci_dev *hdev,
770 struct sk_buff *skb)
771{
772 struct hci_rp_read_data_block_size *rp = (void *) skb->data;
773
774 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
775
776 if (rp->status)
777 return;
778
779 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
780 hdev->block_len = __le16_to_cpu(rp->block_len);
781 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
782
783 hdev->block_cnt = hdev->num_blocks;
784
785 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
786 hdev->block_cnt, hdev->block_len);
787}
788
789static void hci_cc_read_clock(struct hci_dev *hdev, struct sk_buff *skb)
790{
791 struct hci_rp_read_clock *rp = (void *) skb->data;
792 struct hci_cp_read_clock *cp;
793 struct hci_conn *conn;
794
795 BT_DBG("%s", hdev->name);
796
797 if (skb->len < sizeof(*rp))
798 return;
799
800 if (rp->status)
801 return;
802
803 hci_dev_lock(hdev);
804
805 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
806 if (!cp)
807 goto unlock;
808
809 if (cp->which == 0x00) {
810 hdev->clock = le32_to_cpu(rp->clock);
811 goto unlock;
812 }
813
814 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
815 if (conn) {
816 conn->clock = le32_to_cpu(rp->clock);
817 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
818 }
819
820unlock:
821 hci_dev_unlock(hdev);
822}
823
824static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
825 struct sk_buff *skb)
826{
827 struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
828
829 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
830
831 if (rp->status)
832 return;
833
834 hdev->amp_status = rp->amp_status;
835 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
836 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
837 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
838 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
839 hdev->amp_type = rp->amp_type;
840 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
841 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
842 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
843 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
844}
845
846static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
847 struct sk_buff *skb)
848{
849 struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data;
850
851 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
852
853 if (rp->status)
854 return;
855
856 hdev->inq_tx_power = rp->tx_power;
857}
858
859static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
860{
861 struct hci_rp_pin_code_reply *rp = (void *) skb->data;
862 struct hci_cp_pin_code_reply *cp;
863 struct hci_conn *conn;
864
865 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
866
867 hci_dev_lock(hdev);
868
869 if (hci_dev_test_flag(hdev, HCI_MGMT))
870 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
871
872 if (rp->status)
873 goto unlock;
874
875 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
876 if (!cp)
877 goto unlock;
878
879 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
880 if (conn)
881 conn->pin_length = cp->pin_len;
882
883unlock:
884 hci_dev_unlock(hdev);
885}
886
887static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
888{
889 struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
890
891 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
892
893 hci_dev_lock(hdev);
894
895 if (hci_dev_test_flag(hdev, HCI_MGMT))
896 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
897 rp->status);
898
899 hci_dev_unlock(hdev);
900}
901
902static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
903 struct sk_buff *skb)
904{
905 struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
906
907 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
908
909 if (rp->status)
910 return;
911
912 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
913 hdev->le_pkts = rp->le_max_pkt;
914
915 hdev->le_cnt = hdev->le_pkts;
916
917 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
918}
919
920static void hci_cc_le_read_local_features(struct hci_dev *hdev,
921 struct sk_buff *skb)
922{
923 struct hci_rp_le_read_local_features *rp = (void *) skb->data;
924
925 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
926
927 if (rp->status)
928 return;
929
930 memcpy(hdev->le_features, rp->features, 8);
931}
932
933static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
934 struct sk_buff *skb)
935{
936 struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data;
937
938 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
939
940 if (rp->status)
941 return;
942
943 hdev->adv_tx_power = rp->tx_power;
944}
945
946static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
947{
948 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
949
950 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
951
952 hci_dev_lock(hdev);
953
954 if (hci_dev_test_flag(hdev, HCI_MGMT))
955 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
956 rp->status);
957
958 hci_dev_unlock(hdev);
959}
960
961static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
962 struct sk_buff *skb)
963{
964 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
965
966 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
967
968 hci_dev_lock(hdev);
969
970 if (hci_dev_test_flag(hdev, HCI_MGMT))
971 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
972 ACL_LINK, 0, rp->status);
973
974 hci_dev_unlock(hdev);
975}
976
977static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
978{
979 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
980
981 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
982
983 hci_dev_lock(hdev);
984
985 if (hci_dev_test_flag(hdev, HCI_MGMT))
986 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
987 0, rp->status);
988
989 hci_dev_unlock(hdev);
990}
991
992static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
993 struct sk_buff *skb)
994{
995 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
996
997 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
998
999 hci_dev_lock(hdev);
1000
1001 if (hci_dev_test_flag(hdev, HCI_MGMT))
1002 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
1003 ACL_LINK, 0, rp->status);
1004
1005 hci_dev_unlock(hdev);
1006}
1007
1008static void hci_cc_read_local_oob_data(struct hci_dev *hdev,
1009 struct sk_buff *skb)
1010{
1011 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
1012
1013 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1014}
1015
1016static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
1017 struct sk_buff *skb)
1018{
1019 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
1020
1021 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1022}
1023
1024static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb)
1025{
1026 __u8 status = *((__u8 *) skb->data);
1027 bdaddr_t *sent;
1028
1029 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1030
1031 if (status)
1032 return;
1033
1034 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1035 if (!sent)
1036 return;
1037
1038 hci_dev_lock(hdev);
1039
1040 bacpy(&hdev->random_addr, sent);
1041
1042 hci_dev_unlock(hdev);
1043}
1044
1045static void hci_cc_le_set_default_phy(struct hci_dev *hdev, struct sk_buff *skb)
1046{
1047 __u8 status = *((__u8 *) skb->data);
1048 struct hci_cp_le_set_default_phy *cp;
1049
1050 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1051
1052 if (status)
1053 return;
1054
1055 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1056 if (!cp)
1057 return;
1058
1059 hci_dev_lock(hdev);
1060
1061 hdev->le_tx_def_phys = cp->tx_phys;
1062 hdev->le_rx_def_phys = cp->rx_phys;
1063
1064 hci_dev_unlock(hdev);
1065}
1066
1067static void hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev,
1068 struct sk_buff *skb)
1069{
1070 __u8 status = *((__u8 *) skb->data);
1071 struct hci_cp_le_set_adv_set_rand_addr *cp;
1072 struct adv_info *adv_instance;
1073
1074 if (status)
1075 return;
1076
1077 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
1078 if (!cp)
1079 return;
1080
1081 hci_dev_lock(hdev);
1082
1083 if (!hdev->cur_adv_instance) {
1084 /* Store in hdev for instance 0 (Set adv and Directed advs) */
1085 bacpy(&hdev->random_addr, &cp->bdaddr);
1086 } else {
1087 adv_instance = hci_find_adv_instance(hdev,
1088 hdev->cur_adv_instance);
1089 if (adv_instance)
1090 bacpy(&adv_instance->random_addr, &cp->bdaddr);
1091 }
1092
1093 hci_dev_unlock(hdev);
1094}
1095
1096static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
1097{
1098 __u8 *sent, status = *((__u8 *) skb->data);
1099
1100 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1101
1102 if (status)
1103 return;
1104
1105 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1106 if (!sent)
1107 return;
1108
1109 hci_dev_lock(hdev);
1110
1111 /* If we're doing connection initiation as peripheral. Set a
1112 * timeout in case something goes wrong.
1113 */
1114 if (*sent) {
1115 struct hci_conn *conn;
1116
1117 hci_dev_set_flag(hdev, HCI_LE_ADV);
1118
1119 conn = hci_lookup_le_connect(hdev);
1120 if (conn)
1121 queue_delayed_work(hdev->workqueue,
1122 &conn->le_conn_timeout,
1123 conn->conn_timeout);
1124 } else {
1125 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1126 }
1127
1128 hci_dev_unlock(hdev);
1129}
1130
1131static void hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev,
1132 struct sk_buff *skb)
1133{
1134 struct hci_cp_le_set_ext_adv_enable *cp;
1135 __u8 status = *((__u8 *) skb->data);
1136
1137 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1138
1139 if (status)
1140 return;
1141
1142 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1143 if (!cp)
1144 return;
1145
1146 hci_dev_lock(hdev);
1147
1148 if (cp->enable) {
1149 struct hci_conn *conn;
1150
1151 hci_dev_set_flag(hdev, HCI_LE_ADV);
1152
1153 conn = hci_lookup_le_connect(hdev);
1154 if (conn)
1155 queue_delayed_work(hdev->workqueue,
1156 &conn->le_conn_timeout,
1157 conn->conn_timeout);
1158 } else {
1159 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1160 }
1161
1162 hci_dev_unlock(hdev);
1163}
1164
1165static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
1166{
1167 struct hci_cp_le_set_scan_param *cp;
1168 __u8 status = *((__u8 *) skb->data);
1169
1170 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1171
1172 if (status)
1173 return;
1174
1175 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1176 if (!cp)
1177 return;
1178
1179 hci_dev_lock(hdev);
1180
1181 hdev->le_scan_type = cp->type;
1182
1183 hci_dev_unlock(hdev);
1184}
1185
1186static void hci_cc_le_set_ext_scan_param(struct hci_dev *hdev,
1187 struct sk_buff *skb)
1188{
1189 struct hci_cp_le_set_ext_scan_params *cp;
1190 __u8 status = *((__u8 *) skb->data);
1191 struct hci_cp_le_scan_phy_params *phy_param;
1192
1193 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1194
1195 if (status)
1196 return;
1197
1198 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1199 if (!cp)
1200 return;
1201
1202 phy_param = (void *)cp->data;
1203
1204 hci_dev_lock(hdev);
1205
1206 hdev->le_scan_type = phy_param->type;
1207
1208 hci_dev_unlock(hdev);
1209}
1210
1211static bool has_pending_adv_report(struct hci_dev *hdev)
1212{
1213 struct discovery_state *d = &hdev->discovery;
1214
1215 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1216}
1217
1218static void clear_pending_adv_report(struct hci_dev *hdev)
1219{
1220 struct discovery_state *d = &hdev->discovery;
1221
1222 bacpy(&d->last_adv_addr, BDADDR_ANY);
1223 d->last_adv_data_len = 0;
1224}
1225
1226static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1227 u8 bdaddr_type, s8 rssi, u32 flags,
1228 u8 *data, u8 len)
1229{
1230 struct discovery_state *d = &hdev->discovery;
1231
1232 bacpy(&d->last_adv_addr, bdaddr);
1233 d->last_adv_addr_type = bdaddr_type;
1234 d->last_adv_rssi = rssi;
1235 d->last_adv_flags = flags;
1236 memcpy(d->last_adv_data, data, len);
1237 d->last_adv_data_len = len;
1238}
1239
1240static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
1241{
1242 hci_dev_lock(hdev);
1243
1244 switch (enable) {
1245 case LE_SCAN_ENABLE:
1246 hci_dev_set_flag(hdev, HCI_LE_SCAN);
1247 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1248 clear_pending_adv_report(hdev);
1249 break;
1250
1251 case LE_SCAN_DISABLE:
1252 /* We do this here instead of when setting DISCOVERY_STOPPED
1253 * since the latter would potentially require waiting for
1254 * inquiry to stop too.
1255 */
1256 if (has_pending_adv_report(hdev)) {
1257 struct discovery_state *d = &hdev->discovery;
1258
1259 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1260 d->last_adv_addr_type, NULL,
1261 d->last_adv_rssi, d->last_adv_flags,
1262 d->last_adv_data,
1263 d->last_adv_data_len, NULL, 0);
1264 }
1265
1266 /* Cancel this timer so that we don't try to disable scanning
1267 * when it's already disabled.
1268 */
1269 cancel_delayed_work(&hdev->le_scan_disable);
1270
1271 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
1272
1273 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1274 * interrupted scanning due to a connect request. Mark
1275 * therefore discovery as stopped. If this was not
1276 * because of a connect request advertising might have
1277 * been disabled because of active scanning, so
1278 * re-enable it again if necessary.
1279 */
1280 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
1281 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1282 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1283 hdev->discovery.state == DISCOVERY_FINDING)
1284 hci_req_reenable_advertising(hdev);
1285
1286 break;
1287
1288 default:
1289 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1290 enable);
1291 break;
1292 }
1293
1294 hci_dev_unlock(hdev);
1295}
1296
1297static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
1298 struct sk_buff *skb)
1299{
1300 struct hci_cp_le_set_scan_enable *cp;
1301 __u8 status = *((__u8 *) skb->data);
1302
1303 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1304
1305 if (status)
1306 return;
1307
1308 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1309 if (!cp)
1310 return;
1311
1312 le_set_scan_enable_complete(hdev, cp->enable);
1313}
1314
1315static void hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev,
1316 struct sk_buff *skb)
1317{
1318 struct hci_cp_le_set_ext_scan_enable *cp;
1319 __u8 status = *((__u8 *) skb->data);
1320
1321 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1322
1323 if (status)
1324 return;
1325
1326 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1327 if (!cp)
1328 return;
1329
1330 le_set_scan_enable_complete(hdev, cp->enable);
1331}
1332
1333static void hci_cc_le_read_num_adv_sets(struct hci_dev *hdev,
1334 struct sk_buff *skb)
1335{
1336 struct hci_rp_le_read_num_supported_adv_sets *rp = (void *) skb->data;
1337
1338 BT_DBG("%s status 0x%2.2x No of Adv sets %u", hdev->name, rp->status,
1339 rp->num_of_sets);
1340
1341 if (rp->status)
1342 return;
1343
1344 hdev->le_num_of_adv_sets = rp->num_of_sets;
1345}
1346
1347static void hci_cc_le_read_white_list_size(struct hci_dev *hdev,
1348 struct sk_buff *skb)
1349{
1350 struct hci_rp_le_read_white_list_size *rp = (void *) skb->data;
1351
1352 BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
1353
1354 if (rp->status)
1355 return;
1356
1357 hdev->le_white_list_size = rp->size;
1358}
1359
1360static void hci_cc_le_clear_white_list(struct hci_dev *hdev,
1361 struct sk_buff *skb)
1362{
1363 __u8 status = *((__u8 *) skb->data);
1364
1365 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1366
1367 if (status)
1368 return;
1369
1370 hci_bdaddr_list_clear(&hdev->le_white_list);
1371}
1372
1373static void hci_cc_le_add_to_white_list(struct hci_dev *hdev,
1374 struct sk_buff *skb)
1375{
1376 struct hci_cp_le_add_to_white_list *sent;
1377 __u8 status = *((__u8 *) skb->data);
1378
1379 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1380
1381 if (status)
1382 return;
1383
1384 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST);
1385 if (!sent)
1386 return;
1387
1388 hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr,
1389 sent->bdaddr_type);
1390}
1391
1392static void hci_cc_le_del_from_white_list(struct hci_dev *hdev,
1393 struct sk_buff *skb)
1394{
1395 struct hci_cp_le_del_from_white_list *sent;
1396 __u8 status = *((__u8 *) skb->data);
1397
1398 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1399
1400 if (status)
1401 return;
1402
1403 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST);
1404 if (!sent)
1405 return;
1406
1407 hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr,
1408 sent->bdaddr_type);
1409}
1410
1411static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
1412 struct sk_buff *skb)
1413{
1414 struct hci_rp_le_read_supported_states *rp = (void *) skb->data;
1415
1416 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1417
1418 if (rp->status)
1419 return;
1420
1421 memcpy(hdev->le_states, rp->le_states, 8);
1422}
1423
1424static void hci_cc_le_read_def_data_len(struct hci_dev *hdev,
1425 struct sk_buff *skb)
1426{
1427 struct hci_rp_le_read_def_data_len *rp = (void *) skb->data;
1428
1429 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1430
1431 if (rp->status)
1432 return;
1433
1434 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1435 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1436}
1437
1438static void hci_cc_le_write_def_data_len(struct hci_dev *hdev,
1439 struct sk_buff *skb)
1440{
1441 struct hci_cp_le_write_def_data_len *sent;
1442 __u8 status = *((__u8 *) skb->data);
1443
1444 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1445
1446 if (status)
1447 return;
1448
1449 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1450 if (!sent)
1451 return;
1452
1453 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
1454 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
1455}
1456
1457static void hci_cc_le_clear_resolv_list(struct hci_dev *hdev,
1458 struct sk_buff *skb)
1459{
1460 __u8 status = *((__u8 *) skb->data);
1461
1462 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1463
1464 if (status)
1465 return;
1466
1467 hci_bdaddr_list_clear(&hdev->le_resolv_list);
1468}
1469
1470static void hci_cc_le_read_resolv_list_size(struct hci_dev *hdev,
1471 struct sk_buff *skb)
1472{
1473 struct hci_rp_le_read_resolv_list_size *rp = (void *) skb->data;
1474
1475 BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
1476
1477 if (rp->status)
1478 return;
1479
1480 hdev->le_resolv_list_size = rp->size;
1481}
1482
1483static void hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev,
1484 struct sk_buff *skb)
1485{
1486 __u8 *sent, status = *((__u8 *) skb->data);
1487
1488 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1489
1490 if (status)
1491 return;
1492
1493 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
1494 if (!sent)
1495 return;
1496
1497 hci_dev_lock(hdev);
1498
1499 if (*sent)
1500 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
1501 else
1502 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
1503
1504 hci_dev_unlock(hdev);
1505}
1506
1507static void hci_cc_le_read_max_data_len(struct hci_dev *hdev,
1508 struct sk_buff *skb)
1509{
1510 struct hci_rp_le_read_max_data_len *rp = (void *) skb->data;
1511
1512 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1513
1514 if (rp->status)
1515 return;
1516
1517 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
1518 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
1519 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
1520 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
1521}
1522
1523static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
1524 struct sk_buff *skb)
1525{
1526 struct hci_cp_write_le_host_supported *sent;
1527 __u8 status = *((__u8 *) skb->data);
1528
1529 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1530
1531 if (status)
1532 return;
1533
1534 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
1535 if (!sent)
1536 return;
1537
1538 hci_dev_lock(hdev);
1539
1540 if (sent->le) {
1541 hdev->features[1][0] |= LMP_HOST_LE;
1542 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
1543 } else {
1544 hdev->features[1][0] &= ~LMP_HOST_LE;
1545 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
1546 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
1547 }
1548
1549 if (sent->simul)
1550 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
1551 else
1552 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
1553
1554 hci_dev_unlock(hdev);
1555}
1556
1557static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
1558{
1559 struct hci_cp_le_set_adv_param *cp;
1560 u8 status = *((u8 *) skb->data);
1561
1562 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1563
1564 if (status)
1565 return;
1566
1567 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
1568 if (!cp)
1569 return;
1570
1571 hci_dev_lock(hdev);
1572 hdev->adv_addr_type = cp->own_address_type;
1573 hci_dev_unlock(hdev);
1574}
1575
1576static void hci_cc_set_ext_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
1577{
1578 struct hci_rp_le_set_ext_adv_params *rp = (void *) skb->data;
1579 struct hci_cp_le_set_ext_adv_params *cp;
1580 struct adv_info *adv_instance;
1581
1582 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1583
1584 if (rp->status)
1585 return;
1586
1587 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
1588 if (!cp)
1589 return;
1590
1591 hci_dev_lock(hdev);
1592 hdev->adv_addr_type = cp->own_addr_type;
1593 if (!hdev->cur_adv_instance) {
1594 /* Store in hdev for instance 0 */
1595 hdev->adv_tx_power = rp->tx_power;
1596 } else {
1597 adv_instance = hci_find_adv_instance(hdev,
1598 hdev->cur_adv_instance);
1599 if (adv_instance)
1600 adv_instance->tx_power = rp->tx_power;
1601 }
1602 /* Update adv data as tx power is known now */
1603 hci_req_update_adv_data(hdev, hdev->cur_adv_instance);
1604 hci_dev_unlock(hdev);
1605}
1606
1607static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
1608{
1609 struct hci_rp_read_rssi *rp = (void *) skb->data;
1610 struct hci_conn *conn;
1611
1612 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1613
1614 if (rp->status)
1615 return;
1616
1617 hci_dev_lock(hdev);
1618
1619 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1620 if (conn)
1621 conn->rssi = rp->rssi;
1622
1623 hci_dev_unlock(hdev);
1624}
1625
1626static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb)
1627{
1628 struct hci_cp_read_tx_power *sent;
1629 struct hci_rp_read_tx_power *rp = (void *) skb->data;
1630 struct hci_conn *conn;
1631
1632 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1633
1634 if (rp->status)
1635 return;
1636
1637 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
1638 if (!sent)
1639 return;
1640
1641 hci_dev_lock(hdev);
1642
1643 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1644 if (!conn)
1645 goto unlock;
1646
1647 switch (sent->type) {
1648 case 0x00:
1649 conn->tx_power = rp->tx_power;
1650 break;
1651 case 0x01:
1652 conn->max_tx_power = rp->tx_power;
1653 break;
1654 }
1655
1656unlock:
1657 hci_dev_unlock(hdev);
1658}
1659
1660static void hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, struct sk_buff *skb)
1661{
1662 u8 status = *((u8 *) skb->data);
1663 u8 *mode;
1664
1665 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1666
1667 if (status)
1668 return;
1669
1670 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
1671 if (mode)
1672 hdev->ssp_debug_mode = *mode;
1673}
1674
1675static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
1676{
1677 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1678
1679 if (status) {
1680 hci_conn_check_pending(hdev);
1681 return;
1682 }
1683
1684 set_bit(HCI_INQUIRY, &hdev->flags);
1685}
1686
1687static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
1688{
1689 struct hci_cp_create_conn *cp;
1690 struct hci_conn *conn;
1691
1692 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1693
1694 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
1695 if (!cp)
1696 return;
1697
1698 hci_dev_lock(hdev);
1699
1700 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1701
1702 BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn);
1703
1704 if (status) {
1705 if (conn && conn->state == BT_CONNECT) {
1706 if (status != 0x0c || conn->attempt > 2) {
1707 conn->state = BT_CLOSED;
1708 hci_connect_cfm(conn, status);
1709 hci_conn_del(conn);
1710 } else
1711 conn->state = BT_CONNECT2;
1712 }
1713 } else {
1714 if (!conn) {
1715 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
1716 HCI_ROLE_MASTER);
1717 if (!conn)
1718 bt_dev_err(hdev, "no memory for new connection");
1719 }
1720 }
1721
1722 hci_dev_unlock(hdev);
1723}
1724
1725static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1726{
1727 struct hci_cp_add_sco *cp;
1728 struct hci_conn *acl, *sco;
1729 __u16 handle;
1730
1731 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1732
1733 if (!status)
1734 return;
1735
1736 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
1737 if (!cp)
1738 return;
1739
1740 handle = __le16_to_cpu(cp->handle);
1741
1742 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
1743
1744 hci_dev_lock(hdev);
1745
1746 acl = hci_conn_hash_lookup_handle(hdev, handle);
1747 if (acl) {
1748 sco = acl->link;
1749 if (sco) {
1750 sco->state = BT_CLOSED;
1751
1752 hci_connect_cfm(sco, status);
1753 hci_conn_del(sco);
1754 }
1755 }
1756
1757 hci_dev_unlock(hdev);
1758}
1759
1760static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
1761{
1762 struct hci_cp_auth_requested *cp;
1763 struct hci_conn *conn;
1764
1765 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1766
1767 if (!status)
1768 return;
1769
1770 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
1771 if (!cp)
1772 return;
1773
1774 hci_dev_lock(hdev);
1775
1776 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1777 if (conn) {
1778 if (conn->state == BT_CONFIG) {
1779 hci_connect_cfm(conn, status);
1780 hci_conn_drop(conn);
1781 }
1782 }
1783
1784 hci_dev_unlock(hdev);
1785}
1786
1787static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
1788{
1789 struct hci_cp_set_conn_encrypt *cp;
1790 struct hci_conn *conn;
1791
1792 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1793
1794 if (!status)
1795 return;
1796
1797 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
1798 if (!cp)
1799 return;
1800
1801 hci_dev_lock(hdev);
1802
1803 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1804 if (conn) {
1805 if (conn->state == BT_CONFIG) {
1806 hci_connect_cfm(conn, status);
1807 hci_conn_drop(conn);
1808 }
1809 }
1810
1811 hci_dev_unlock(hdev);
1812}
1813
1814static int hci_outgoing_auth_needed(struct hci_dev *hdev,
1815 struct hci_conn *conn)
1816{
1817 if (conn->state != BT_CONFIG || !conn->out)
1818 return 0;
1819
1820 if (conn->pending_sec_level == BT_SECURITY_SDP)
1821 return 0;
1822
1823 /* Only request authentication for SSP connections or non-SSP
1824 * devices with sec_level MEDIUM or HIGH or if MITM protection
1825 * is requested.
1826 */
1827 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
1828 conn->pending_sec_level != BT_SECURITY_FIPS &&
1829 conn->pending_sec_level != BT_SECURITY_HIGH &&
1830 conn->pending_sec_level != BT_SECURITY_MEDIUM)
1831 return 0;
1832
1833 return 1;
1834}
1835
1836static int hci_resolve_name(struct hci_dev *hdev,
1837 struct inquiry_entry *e)
1838{
1839 struct hci_cp_remote_name_req cp;
1840
1841 memset(&cp, 0, sizeof(cp));
1842
1843 bacpy(&cp.bdaddr, &e->data.bdaddr);
1844 cp.pscan_rep_mode = e->data.pscan_rep_mode;
1845 cp.pscan_mode = e->data.pscan_mode;
1846 cp.clock_offset = e->data.clock_offset;
1847
1848 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
1849}
1850
1851static bool hci_resolve_next_name(struct hci_dev *hdev)
1852{
1853 struct discovery_state *discov = &hdev->discovery;
1854 struct inquiry_entry *e;
1855
1856 if (list_empty(&discov->resolve))
1857 return false;
1858
1859 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
1860 if (!e)
1861 return false;
1862
1863 if (hci_resolve_name(hdev, e) == 0) {
1864 e->name_state = NAME_PENDING;
1865 return true;
1866 }
1867
1868 return false;
1869}
1870
1871static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
1872 bdaddr_t *bdaddr, u8 *name, u8 name_len)
1873{
1874 struct discovery_state *discov = &hdev->discovery;
1875 struct inquiry_entry *e;
1876
1877 /* Update the mgmt connected state if necessary. Be careful with
1878 * conn objects that exist but are not (yet) connected however.
1879 * Only those in BT_CONFIG or BT_CONNECTED states can be
1880 * considered connected.
1881 */
1882 if (conn &&
1883 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
1884 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
1885 mgmt_device_connected(hdev, conn, 0, name, name_len);
1886
1887 if (discov->state == DISCOVERY_STOPPED)
1888 return;
1889
1890 if (discov->state == DISCOVERY_STOPPING)
1891 goto discov_complete;
1892
1893 if (discov->state != DISCOVERY_RESOLVING)
1894 return;
1895
1896 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
1897 /* If the device was not found in a list of found devices names of which
1898 * are pending. there is no need to continue resolving a next name as it
1899 * will be done upon receiving another Remote Name Request Complete
1900 * Event */
1901 if (!e)
1902 return;
1903
1904 list_del(&e->list);
1905 if (name) {
1906 e->name_state = NAME_KNOWN;
1907 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
1908 e->data.rssi, name, name_len);
1909 } else {
1910 e->name_state = NAME_NOT_KNOWN;
1911 }
1912
1913 if (hci_resolve_next_name(hdev))
1914 return;
1915
1916discov_complete:
1917 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1918}
1919
1920static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
1921{
1922 struct hci_cp_remote_name_req *cp;
1923 struct hci_conn *conn;
1924
1925 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1926
1927 /* If successful wait for the name req complete event before
1928 * checking for the need to do authentication */
1929 if (!status)
1930 return;
1931
1932 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
1933 if (!cp)
1934 return;
1935
1936 hci_dev_lock(hdev);
1937
1938 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1939
1940 if (hci_dev_test_flag(hdev, HCI_MGMT))
1941 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
1942
1943 if (!conn)
1944 goto unlock;
1945
1946 if (!hci_outgoing_auth_needed(hdev, conn))
1947 goto unlock;
1948
1949 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
1950 struct hci_cp_auth_requested auth_cp;
1951
1952 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
1953
1954 auth_cp.handle = __cpu_to_le16(conn->handle);
1955 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
1956 sizeof(auth_cp), &auth_cp);
1957 }
1958
1959unlock:
1960 hci_dev_unlock(hdev);
1961}
1962
1963static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
1964{
1965 struct hci_cp_read_remote_features *cp;
1966 struct hci_conn *conn;
1967
1968 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1969
1970 if (!status)
1971 return;
1972
1973 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
1974 if (!cp)
1975 return;
1976
1977 hci_dev_lock(hdev);
1978
1979 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1980 if (conn) {
1981 if (conn->state == BT_CONFIG) {
1982 hci_connect_cfm(conn, status);
1983 hci_conn_drop(conn);
1984 }
1985 }
1986
1987 hci_dev_unlock(hdev);
1988}
1989
1990static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
1991{
1992 struct hci_cp_read_remote_ext_features *cp;
1993 struct hci_conn *conn;
1994
1995 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1996
1997 if (!status)
1998 return;
1999
2000 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2001 if (!cp)
2002 return;
2003
2004 hci_dev_lock(hdev);
2005
2006 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2007 if (conn) {
2008 if (conn->state == BT_CONFIG) {
2009 hci_connect_cfm(conn, status);
2010 hci_conn_drop(conn);
2011 }
2012 }
2013
2014 hci_dev_unlock(hdev);
2015}
2016
2017static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2018{
2019 struct hci_cp_setup_sync_conn *cp;
2020 struct hci_conn *acl, *sco;
2021 __u16 handle;
2022
2023 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2024
2025 if (!status)
2026 return;
2027
2028 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
2029 if (!cp)
2030 return;
2031
2032 handle = __le16_to_cpu(cp->handle);
2033
2034 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
2035
2036 hci_dev_lock(hdev);
2037
2038 acl = hci_conn_hash_lookup_handle(hdev, handle);
2039 if (acl) {
2040 sco = acl->link;
2041 if (sco) {
2042 sco->state = BT_CLOSED;
2043
2044 hci_connect_cfm(sco, status);
2045 hci_conn_del(sco);
2046 }
2047 }
2048
2049 hci_dev_unlock(hdev);
2050}
2051
2052static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
2053{
2054 struct hci_cp_sniff_mode *cp;
2055 struct hci_conn *conn;
2056
2057 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2058
2059 if (!status)
2060 return;
2061
2062 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2063 if (!cp)
2064 return;
2065
2066 hci_dev_lock(hdev);
2067
2068 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2069 if (conn) {
2070 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2071
2072 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2073 hci_sco_setup(conn, status);
2074 }
2075
2076 hci_dev_unlock(hdev);
2077}
2078
2079static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2080{
2081 struct hci_cp_exit_sniff_mode *cp;
2082 struct hci_conn *conn;
2083
2084 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2085
2086 if (!status)
2087 return;
2088
2089 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2090 if (!cp)
2091 return;
2092
2093 hci_dev_lock(hdev);
2094
2095 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2096 if (conn) {
2097 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
2098
2099 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
2100 hci_sco_setup(conn, status);
2101 }
2102
2103 hci_dev_unlock(hdev);
2104}
2105
2106static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2107{
2108 struct hci_cp_disconnect *cp;
2109 struct hci_conn *conn;
2110
2111 if (!status)
2112 return;
2113
2114 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2115 if (!cp)
2116 return;
2117
2118 hci_dev_lock(hdev);
2119
2120 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2121 if (conn)
2122 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2123 conn->dst_type, status);
2124
2125 hci_dev_unlock(hdev);
2126}
2127
2128static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2129 u8 peer_addr_type, u8 own_address_type,
2130 u8 filter_policy)
2131{
2132 struct hci_conn *conn;
2133
2134 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
2135 peer_addr_type);
2136 if (!conn)
2137 return;
2138
2139 /* Store the initiator and responder address information which
2140 * is needed for SMP. These values will not change during the
2141 * lifetime of the connection.
2142 */
2143 conn->init_addr_type = own_address_type;
2144 if (own_address_type == ADDR_LE_DEV_RANDOM)
2145 bacpy(&conn->init_addr, &hdev->random_addr);
2146 else
2147 bacpy(&conn->init_addr, &hdev->bdaddr);
2148
2149 conn->resp_addr_type = peer_addr_type;
2150 bacpy(&conn->resp_addr, peer_addr);
2151
2152 /* We don't want the connection attempt to stick around
2153 * indefinitely since LE doesn't have a page timeout concept
2154 * like BR/EDR. Set a timer for any connection that doesn't use
2155 * the white list for connecting.
2156 */
2157 if (filter_policy == HCI_LE_USE_PEER_ADDR)
2158 queue_delayed_work(conn->hdev->workqueue,
2159 &conn->le_conn_timeout,
2160 conn->conn_timeout);
2161}
2162
2163static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2164{
2165 struct hci_cp_le_create_conn *cp;
2166
2167 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2168
2169 /* All connection failure handling is taken care of by the
2170 * hci_le_conn_failed function which is triggered by the HCI
2171 * request completion callbacks used for connecting.
2172 */
2173 if (status)
2174 return;
2175
2176 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
2177 if (!cp)
2178 return;
2179
2180 hci_dev_lock(hdev);
2181
2182 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2183 cp->own_address_type, cp->filter_policy);
2184
2185 hci_dev_unlock(hdev);
2186}
2187
2188static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
2189{
2190 struct hci_cp_le_ext_create_conn *cp;
2191
2192 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2193
2194 /* All connection failure handling is taken care of by the
2195 * hci_le_conn_failed function which is triggered by the HCI
2196 * request completion callbacks used for connecting.
2197 */
2198 if (status)
2199 return;
2200
2201 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
2202 if (!cp)
2203 return;
2204
2205 hci_dev_lock(hdev);
2206
2207 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2208 cp->own_addr_type, cp->filter_policy);
2209
2210 hci_dev_unlock(hdev);
2211}
2212
2213static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
2214{
2215 struct hci_cp_le_read_remote_features *cp;
2216 struct hci_conn *conn;
2217
2218 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2219
2220 if (!status)
2221 return;
2222
2223 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
2224 if (!cp)
2225 return;
2226
2227 hci_dev_lock(hdev);
2228
2229 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2230 if (conn) {
2231 if (conn->state == BT_CONFIG) {
2232 hci_connect_cfm(conn, status);
2233 hci_conn_drop(conn);
2234 }
2235 }
2236
2237 hci_dev_unlock(hdev);
2238}
2239
2240static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
2241{
2242 struct hci_cp_le_start_enc *cp;
2243 struct hci_conn *conn;
2244
2245 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2246
2247 if (!status)
2248 return;
2249
2250 hci_dev_lock(hdev);
2251
2252 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
2253 if (!cp)
2254 goto unlock;
2255
2256 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2257 if (!conn)
2258 goto unlock;
2259
2260 if (conn->state != BT_CONNECTED)
2261 goto unlock;
2262
2263 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2264 hci_conn_drop(conn);
2265
2266unlock:
2267 hci_dev_unlock(hdev);
2268}
2269
2270static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
2271{
2272 struct hci_cp_switch_role *cp;
2273 struct hci_conn *conn;
2274
2275 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2276
2277 if (!status)
2278 return;
2279
2280 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
2281 if (!cp)
2282 return;
2283
2284 hci_dev_lock(hdev);
2285
2286 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2287 if (conn)
2288 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
2289
2290 hci_dev_unlock(hdev);
2291}
2292
2293static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2294{
2295 __u8 status = *((__u8 *) skb->data);
2296 struct discovery_state *discov = &hdev->discovery;
2297 struct inquiry_entry *e;
2298
2299 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2300
2301 hci_conn_check_pending(hdev);
2302
2303 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
2304 return;
2305
2306 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
2307 wake_up_bit(&hdev->flags, HCI_INQUIRY);
2308
2309 if (!hci_dev_test_flag(hdev, HCI_MGMT))
2310 return;
2311
2312 hci_dev_lock(hdev);
2313
2314 if (discov->state != DISCOVERY_FINDING)
2315 goto unlock;
2316
2317 if (list_empty(&discov->resolve)) {
2318 /* When BR/EDR inquiry is active and no LE scanning is in
2319 * progress, then change discovery state to indicate completion.
2320 *
2321 * When running LE scanning and BR/EDR inquiry simultaneously
2322 * and the LE scan already finished, then change the discovery
2323 * state to indicate completion.
2324 */
2325 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
2326 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
2327 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2328 goto unlock;
2329 }
2330
2331 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2332 if (e && hci_resolve_name(hdev, e) == 0) {
2333 e->name_state = NAME_PENDING;
2334 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
2335 } else {
2336 /* When BR/EDR inquiry is active and no LE scanning is in
2337 * progress, then change discovery state to indicate completion.
2338 *
2339 * When running LE scanning and BR/EDR inquiry simultaneously
2340 * and the LE scan already finished, then change the discovery
2341 * state to indicate completion.
2342 */
2343 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
2344 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
2345 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2346 }
2347
2348unlock:
2349 hci_dev_unlock(hdev);
2350}
2351
2352static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
2353{
2354 struct inquiry_data data;
2355 struct inquiry_info *info = (void *) (skb->data + 1);
2356 int num_rsp = *((__u8 *) skb->data);
2357
2358 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
2359
2360 if (!num_rsp)
2361 return;
2362
2363 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
2364 return;
2365
2366 hci_dev_lock(hdev);
2367
2368 for (; num_rsp; num_rsp--, info++) {
2369 u32 flags;
2370
2371 bacpy(&data.bdaddr, &info->bdaddr);
2372 data.pscan_rep_mode = info->pscan_rep_mode;
2373 data.pscan_period_mode = info->pscan_period_mode;
2374 data.pscan_mode = info->pscan_mode;
2375 memcpy(data.dev_class, info->dev_class, 3);
2376 data.clock_offset = info->clock_offset;
2377 data.rssi = HCI_RSSI_INVALID;
2378 data.ssp_mode = 0x00;
2379
2380 flags = hci_inquiry_cache_update(hdev, &data, false);
2381
2382 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2383 info->dev_class, HCI_RSSI_INVALID,
2384 flags, NULL, 0, NULL, 0);
2385 }
2386
2387 hci_dev_unlock(hdev);
2388}
2389
2390static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2391{
2392 struct hci_ev_conn_complete *ev = (void *) skb->data;
2393 struct hci_conn *conn;
2394
2395 BT_DBG("%s", hdev->name);
2396
2397 hci_dev_lock(hdev);
2398
2399 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
2400 if (!conn) {
2401 if (ev->link_type != SCO_LINK)
2402 goto unlock;
2403
2404 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
2405 if (!conn)
2406 goto unlock;
2407
2408 conn->type = SCO_LINK;
2409 }
2410
2411 if (!ev->status) {
2412 conn->handle = __le16_to_cpu(ev->handle);
2413
2414 if (conn->type == ACL_LINK) {
2415 conn->state = BT_CONFIG;
2416 hci_conn_hold(conn);
2417
2418 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
2419 !hci_find_link_key(hdev, &ev->bdaddr))
2420 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
2421 else
2422 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2423 } else
2424 conn->state = BT_CONNECTED;
2425
2426 hci_debugfs_create_conn(conn);
2427 hci_conn_add_sysfs(conn);
2428
2429 if (test_bit(HCI_AUTH, &hdev->flags))
2430 set_bit(HCI_CONN_AUTH, &conn->flags);
2431
2432 if (test_bit(HCI_ENCRYPT, &hdev->flags))
2433 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2434
2435 /* Get remote features */
2436 if (conn->type == ACL_LINK) {
2437 struct hci_cp_read_remote_features cp;
2438 cp.handle = ev->handle;
2439 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
2440 sizeof(cp), &cp);
2441
2442 hci_req_update_scan(hdev);
2443 }
2444
2445 /* Set packet type for incoming connection */
2446 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
2447 struct hci_cp_change_conn_ptype cp;
2448 cp.handle = ev->handle;
2449 cp.pkt_type = cpu_to_le16(conn->pkt_type);
2450 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
2451 &cp);
2452 }
2453 } else {
2454 conn->state = BT_CLOSED;
2455 if (conn->type == ACL_LINK)
2456 mgmt_connect_failed(hdev, &conn->dst, conn->type,
2457 conn->dst_type, ev->status);
2458 }
2459
2460 if (conn->type == ACL_LINK)
2461 hci_sco_setup(conn, ev->status);
2462
2463 if (ev->status) {
2464 hci_connect_cfm(conn, ev->status);
2465 hci_conn_del(conn);
2466 } else if (ev->link_type != ACL_LINK)
2467 hci_connect_cfm(conn, ev->status);
2468
2469unlock:
2470 hci_dev_unlock(hdev);
2471
2472 hci_conn_check_pending(hdev);
2473}
2474
2475static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
2476{
2477 struct hci_cp_reject_conn_req cp;
2478
2479 bacpy(&cp.bdaddr, bdaddr);
2480 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
2481 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
2482}
2483
2484static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2485{
2486 struct hci_ev_conn_request *ev = (void *) skb->data;
2487 int mask = hdev->link_mode;
2488 struct inquiry_entry *ie;
2489 struct hci_conn *conn;
2490 __u8 flags = 0;
2491
2492 BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr,
2493 ev->link_type);
2494
2495 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
2496 &flags);
2497
2498 if (!(mask & HCI_LM_ACCEPT)) {
2499 hci_reject_conn(hdev, &ev->bdaddr);
2500 return;
2501 }
2502
2503 if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr,
2504 BDADDR_BREDR)) {
2505 hci_reject_conn(hdev, &ev->bdaddr);
2506 return;
2507 }
2508
2509 /* Require HCI_CONNECTABLE or a whitelist entry to accept the
2510 * connection. These features are only touched through mgmt so
2511 * only do the checks if HCI_MGMT is set.
2512 */
2513 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
2514 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
2515 !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
2516 BDADDR_BREDR)) {
2517 hci_reject_conn(hdev, &ev->bdaddr);
2518 return;
2519 }
2520
2521 /* Connection accepted */
2522
2523 hci_dev_lock(hdev);
2524
2525 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2526 if (ie)
2527 memcpy(ie->data.dev_class, ev->dev_class, 3);
2528
2529 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
2530 &ev->bdaddr);
2531 if (!conn) {
2532 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
2533 HCI_ROLE_SLAVE);
2534 if (!conn) {
2535 bt_dev_err(hdev, "no memory for new connection");
2536 hci_dev_unlock(hdev);
2537 return;
2538 }
2539 }
2540
2541 memcpy(conn->dev_class, ev->dev_class, 3);
2542
2543 hci_dev_unlock(hdev);
2544
2545 if (ev->link_type == ACL_LINK ||
2546 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
2547 struct hci_cp_accept_conn_req cp;
2548 conn->state = BT_CONNECT;
2549
2550 bacpy(&cp.bdaddr, &ev->bdaddr);
2551
2552 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
2553 cp.role = 0x00; /* Become master */
2554 else
2555 cp.role = 0x01; /* Remain slave */
2556
2557 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
2558 } else if (!(flags & HCI_PROTO_DEFER)) {
2559 struct hci_cp_accept_sync_conn_req cp;
2560 conn->state = BT_CONNECT;
2561
2562 bacpy(&cp.bdaddr, &ev->bdaddr);
2563 cp.pkt_type = cpu_to_le16(conn->pkt_type);
2564
2565 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
2566 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
2567 cp.max_latency = cpu_to_le16(0xffff);
2568 cp.content_format = cpu_to_le16(hdev->voice_setting);
2569 cp.retrans_effort = 0xff;
2570
2571 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
2572 &cp);
2573 } else {
2574 conn->state = BT_CONNECT2;
2575 hci_connect_cfm(conn, 0);
2576 }
2577}
2578
2579static u8 hci_to_mgmt_reason(u8 err)
2580{
2581 switch (err) {
2582 case HCI_ERROR_CONNECTION_TIMEOUT:
2583 return MGMT_DEV_DISCONN_TIMEOUT;
2584 case HCI_ERROR_REMOTE_USER_TERM:
2585 case HCI_ERROR_REMOTE_LOW_RESOURCES:
2586 case HCI_ERROR_REMOTE_POWER_OFF:
2587 return MGMT_DEV_DISCONN_REMOTE;
2588 case HCI_ERROR_LOCAL_HOST_TERM:
2589 return MGMT_DEV_DISCONN_LOCAL_HOST;
2590 default:
2591 return MGMT_DEV_DISCONN_UNKNOWN;
2592 }
2593}
2594
2595static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2596{
2597 struct hci_ev_disconn_complete *ev = (void *) skb->data;
2598 u8 reason;
2599 struct hci_conn_params *params;
2600 struct hci_conn *conn;
2601 bool mgmt_connected;
2602 u8 type;
2603
2604 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2605
2606 hci_dev_lock(hdev);
2607
2608 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2609 if (!conn)
2610 goto unlock;
2611
2612 if (ev->status) {
2613 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2614 conn->dst_type, ev->status);
2615 goto unlock;
2616 }
2617
2618 conn->state = BT_CLOSED;
2619
2620 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2621
2622 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
2623 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
2624 else
2625 reason = hci_to_mgmt_reason(ev->reason);
2626
2627 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2628 reason, mgmt_connected);
2629
2630 if (conn->type == ACL_LINK) {
2631 if (test_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2632 hci_remove_link_key(hdev, &conn->dst);
2633
2634 hci_req_update_scan(hdev);
2635 }
2636
2637 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2638 if (params) {
2639 switch (params->auto_connect) {
2640 case HCI_AUTO_CONN_LINK_LOSS:
2641 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2642 break;
2643 /* Fall through */
2644
2645 case HCI_AUTO_CONN_DIRECT:
2646 case HCI_AUTO_CONN_ALWAYS:
2647 list_del_init(&params->action);
2648 list_add(&params->action, &hdev->pend_le_conns);
2649 hci_update_background_scan(hdev);
2650 break;
2651
2652 default:
2653 break;
2654 }
2655 }
2656
2657 type = conn->type;
2658
2659 hci_disconn_cfm(conn, ev->reason);
2660 hci_conn_del(conn);
2661
2662 /* Re-enable advertising if necessary, since it might
2663 * have been disabled by the connection. From the
2664 * HCI_LE_Set_Advertise_Enable command description in
2665 * the core specification (v4.0):
2666 * "The Controller shall continue advertising until the Host
2667 * issues an LE_Set_Advertise_Enable command with
2668 * Advertising_Enable set to 0x00 (Advertising is disabled)
2669 * or until a connection is created or until the Advertising
2670 * is timed out due to Directed Advertising."
2671 */
2672 if (type == LE_LINK)
2673 hci_req_reenable_advertising(hdev);
2674
2675unlock:
2676 hci_dev_unlock(hdev);
2677}
2678
2679static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2680{
2681 struct hci_ev_auth_complete *ev = (void *) skb->data;
2682 struct hci_conn *conn;
2683
2684 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2685
2686 hci_dev_lock(hdev);
2687
2688 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2689 if (!conn)
2690 goto unlock;
2691
2692 if (!ev->status) {
2693 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2694
2695 if (!hci_conn_ssp_enabled(conn) &&
2696 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
2697 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
2698 } else {
2699 set_bit(HCI_CONN_AUTH, &conn->flags);
2700 conn->sec_level = conn->pending_sec_level;
2701 }
2702 } else {
2703 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
2704 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2705
2706 mgmt_auth_failed(conn, ev->status);
2707 }
2708
2709 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2710 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
2711
2712 if (conn->state == BT_CONFIG) {
2713 if (!ev->status && hci_conn_ssp_enabled(conn)) {
2714 struct hci_cp_set_conn_encrypt cp;
2715 cp.handle = ev->handle;
2716 cp.encrypt = 0x01;
2717 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2718 &cp);
2719 } else {
2720 conn->state = BT_CONNECTED;
2721 hci_connect_cfm(conn, ev->status);
2722 hci_conn_drop(conn);
2723 }
2724 } else {
2725 hci_auth_cfm(conn, ev->status);
2726
2727 hci_conn_hold(conn);
2728 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2729 hci_conn_drop(conn);
2730 }
2731
2732 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
2733 if (!ev->status) {
2734 struct hci_cp_set_conn_encrypt cp;
2735 cp.handle = ev->handle;
2736 cp.encrypt = 0x01;
2737 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2738 &cp);
2739 } else {
2740 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2741 hci_encrypt_cfm(conn, ev->status, 0x00);
2742 }
2743 }
2744
2745unlock:
2746 hci_dev_unlock(hdev);
2747}
2748
2749static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
2750{
2751 struct hci_ev_remote_name *ev = (void *) skb->data;
2752 struct hci_conn *conn;
2753
2754 BT_DBG("%s", hdev->name);
2755
2756 hci_conn_check_pending(hdev);
2757
2758 hci_dev_lock(hdev);
2759
2760 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2761
2762 if (!hci_dev_test_flag(hdev, HCI_MGMT))
2763 goto check_auth;
2764
2765 if (ev->status == 0)
2766 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
2767 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
2768 else
2769 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
2770
2771check_auth:
2772 if (!conn)
2773 goto unlock;
2774
2775 if (!hci_outgoing_auth_needed(hdev, conn))
2776 goto unlock;
2777
2778 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2779 struct hci_cp_auth_requested cp;
2780
2781 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2782
2783 cp.handle = __cpu_to_le16(conn->handle);
2784 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
2785 }
2786
2787unlock:
2788 hci_dev_unlock(hdev);
2789}
2790
2791static void read_enc_key_size_complete(struct hci_dev *hdev, u8 status,
2792 u16 opcode, struct sk_buff *skb)
2793{
2794 const struct hci_rp_read_enc_key_size *rp;
2795 struct hci_conn *conn;
2796 u16 handle;
2797
2798 BT_DBG("%s status 0x%02x", hdev->name, status);
2799
2800 if (!skb || skb->len < sizeof(*rp)) {
2801 bt_dev_err(hdev, "invalid read key size response");
2802 return;
2803 }
2804
2805 rp = (void *)skb->data;
2806 handle = le16_to_cpu(rp->handle);
2807
2808 hci_dev_lock(hdev);
2809
2810 conn = hci_conn_hash_lookup_handle(hdev, handle);
2811 if (!conn)
2812 goto unlock;
2813
2814 /* If we fail to read the encryption key size, assume maximum
2815 * (which is the same we do also when this HCI command isn't
2816 * supported.
2817 */
2818 if (rp->status) {
2819 bt_dev_err(hdev, "failed to read key size for handle %u",
2820 handle);
2821 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2822 } else {
2823 conn->enc_key_size = rp->key_size;
2824 }
2825
2826 if (conn->state == BT_CONFIG) {
2827 conn->state = BT_CONNECTED;
2828 hci_connect_cfm(conn, 0);
2829 hci_conn_drop(conn);
2830 } else {
2831 u8 encrypt;
2832
2833 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2834 encrypt = 0x00;
2835 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2836 encrypt = 0x02;
2837 else
2838 encrypt = 0x01;
2839
2840 hci_encrypt_cfm(conn, 0, encrypt);
2841 }
2842
2843unlock:
2844 hci_dev_unlock(hdev);
2845}
2846
2847static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2848{
2849 struct hci_ev_encrypt_change *ev = (void *) skb->data;
2850 struct hci_conn *conn;
2851
2852 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2853
2854 hci_dev_lock(hdev);
2855
2856 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2857 if (!conn)
2858 goto unlock;
2859
2860 if (!ev->status) {
2861 if (ev->encrypt) {
2862 /* Encryption implies authentication */
2863 set_bit(HCI_CONN_AUTH, &conn->flags);
2864 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2865 conn->sec_level = conn->pending_sec_level;
2866
2867 /* P-256 authentication key implies FIPS */
2868 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
2869 set_bit(HCI_CONN_FIPS, &conn->flags);
2870
2871 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
2872 conn->type == LE_LINK)
2873 set_bit(HCI_CONN_AES_CCM, &conn->flags);
2874 } else {
2875 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
2876 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
2877 }
2878 }
2879
2880 /* We should disregard the current RPA and generate a new one
2881 * whenever the encryption procedure fails.
2882 */
2883 if (ev->status && conn->type == LE_LINK) {
2884 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
2885 hci_adv_instances_set_rpa_expired(hdev, true);
2886 }
2887
2888 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2889
2890 if (ev->status && conn->state == BT_CONNECTED) {
2891 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
2892 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2893
2894 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2895 hci_conn_drop(conn);
2896 goto unlock;
2897 }
2898
2899 /* In Secure Connections Only mode, do not allow any connections
2900 * that are not encrypted with AES-CCM using a P-256 authenticated
2901 * combination key.
2902 */
2903 if (hci_dev_test_flag(hdev, HCI_SC_ONLY) &&
2904 (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
2905 conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
2906 hci_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
2907 hci_conn_drop(conn);
2908 goto unlock;
2909 }
2910
2911 /* Try reading the encryption key size for encrypted ACL links */
2912 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
2913 struct hci_cp_read_enc_key_size cp;
2914 struct hci_request req;
2915
2916 /* Only send HCI_Read_Encryption_Key_Size if the
2917 * controller really supports it. If it doesn't, assume
2918 * the default size (16).
2919 */
2920 if (!(hdev->commands[20] & 0x10)) {
2921 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2922 goto notify;
2923 }
2924
2925 hci_req_init(&req, hdev);
2926
2927 cp.handle = cpu_to_le16(conn->handle);
2928 hci_req_add(&req, HCI_OP_READ_ENC_KEY_SIZE, sizeof(cp), &cp);
2929
2930 if (hci_req_run_skb(&req, read_enc_key_size_complete)) {
2931 bt_dev_err(hdev, "sending read key size failed");
2932 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2933 goto notify;
2934 }
2935
2936 goto unlock;
2937 }
2938
2939notify:
2940 if (conn->state == BT_CONFIG) {
2941 if (!ev->status)
2942 conn->state = BT_CONNECTED;
2943
2944 hci_connect_cfm(conn, ev->status);
2945 hci_conn_drop(conn);
2946 } else
2947 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
2948
2949unlock:
2950 hci_dev_unlock(hdev);
2951}
2952
2953static void hci_change_link_key_complete_evt(struct hci_dev *hdev,
2954 struct sk_buff *skb)
2955{
2956 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
2957 struct hci_conn *conn;
2958
2959 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2960
2961 hci_dev_lock(hdev);
2962
2963 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2964 if (conn) {
2965 if (!ev->status)
2966 set_bit(HCI_CONN_SECURE, &conn->flags);
2967
2968 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2969
2970 hci_key_change_cfm(conn, ev->status);
2971 }
2972
2973 hci_dev_unlock(hdev);
2974}
2975
2976static void hci_remote_features_evt(struct hci_dev *hdev,
2977 struct sk_buff *skb)
2978{
2979 struct hci_ev_remote_features *ev = (void *) skb->data;
2980 struct hci_conn *conn;
2981
2982 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2983
2984 hci_dev_lock(hdev);
2985
2986 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2987 if (!conn)
2988 goto unlock;
2989
2990 if (!ev->status)
2991 memcpy(conn->features[0], ev->features, 8);
2992
2993 if (conn->state != BT_CONFIG)
2994 goto unlock;
2995
2996 if (!ev->status && lmp_ext_feat_capable(hdev) &&
2997 lmp_ext_feat_capable(conn)) {
2998 struct hci_cp_read_remote_ext_features cp;
2999 cp.handle = ev->handle;
3000 cp.page = 0x01;
3001 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
3002 sizeof(cp), &cp);
3003 goto unlock;
3004 }
3005
3006 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3007 struct hci_cp_remote_name_req cp;
3008 memset(&cp, 0, sizeof(cp));
3009 bacpy(&cp.bdaddr, &conn->dst);
3010 cp.pscan_rep_mode = 0x02;
3011 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3012 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3013 mgmt_device_connected(hdev, conn, 0, NULL, 0);
3014
3015 if (!hci_outgoing_auth_needed(hdev, conn)) {
3016 conn->state = BT_CONNECTED;
3017 hci_connect_cfm(conn, ev->status);
3018 hci_conn_drop(conn);
3019 }
3020
3021unlock:
3022 hci_dev_unlock(hdev);
3023}
3024
3025static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
3026 u16 *opcode, u8 *status,
3027 hci_req_complete_t *req_complete,
3028 hci_req_complete_skb_t *req_complete_skb)
3029{
3030 struct hci_ev_cmd_complete *ev = (void *) skb->data;
3031
3032 *opcode = __le16_to_cpu(ev->opcode);
3033 *status = skb->data[sizeof(*ev)];
3034
3035 skb_pull(skb, sizeof(*ev));
3036
3037 switch (*opcode) {
3038 case HCI_OP_INQUIRY_CANCEL:
3039 hci_cc_inquiry_cancel(hdev, skb);
3040 break;
3041
3042 case HCI_OP_PERIODIC_INQ:
3043 hci_cc_periodic_inq(hdev, skb);
3044 break;
3045
3046 case HCI_OP_EXIT_PERIODIC_INQ:
3047 hci_cc_exit_periodic_inq(hdev, skb);
3048 break;
3049
3050 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
3051 hci_cc_remote_name_req_cancel(hdev, skb);
3052 break;
3053
3054 case HCI_OP_ROLE_DISCOVERY:
3055 hci_cc_role_discovery(hdev, skb);
3056 break;
3057
3058 case HCI_OP_READ_LINK_POLICY:
3059 hci_cc_read_link_policy(hdev, skb);
3060 break;
3061
3062 case HCI_OP_WRITE_LINK_POLICY:
3063 hci_cc_write_link_policy(hdev, skb);
3064 break;
3065
3066 case HCI_OP_READ_DEF_LINK_POLICY:
3067 hci_cc_read_def_link_policy(hdev, skb);
3068 break;
3069
3070 case HCI_OP_WRITE_DEF_LINK_POLICY:
3071 hci_cc_write_def_link_policy(hdev, skb);
3072 break;
3073
3074 case HCI_OP_RESET:
3075 hci_cc_reset(hdev, skb);
3076 break;
3077
3078 case HCI_OP_READ_STORED_LINK_KEY:
3079 hci_cc_read_stored_link_key(hdev, skb);
3080 break;
3081
3082 case HCI_OP_DELETE_STORED_LINK_KEY:
3083 hci_cc_delete_stored_link_key(hdev, skb);
3084 break;
3085
3086 case HCI_OP_WRITE_LOCAL_NAME:
3087 hci_cc_write_local_name(hdev, skb);
3088 break;
3089
3090 case HCI_OP_READ_LOCAL_NAME:
3091 hci_cc_read_local_name(hdev, skb);
3092 break;
3093
3094 case HCI_OP_WRITE_AUTH_ENABLE:
3095 hci_cc_write_auth_enable(hdev, skb);
3096 break;
3097
3098 case HCI_OP_WRITE_ENCRYPT_MODE:
3099 hci_cc_write_encrypt_mode(hdev, skb);
3100 break;
3101
3102 case HCI_OP_WRITE_SCAN_ENABLE:
3103 hci_cc_write_scan_enable(hdev, skb);
3104 break;
3105
3106 case HCI_OP_READ_CLASS_OF_DEV:
3107 hci_cc_read_class_of_dev(hdev, skb);
3108 break;
3109
3110 case HCI_OP_WRITE_CLASS_OF_DEV:
3111 hci_cc_write_class_of_dev(hdev, skb);
3112 break;
3113
3114 case HCI_OP_READ_VOICE_SETTING:
3115 hci_cc_read_voice_setting(hdev, skb);
3116 break;
3117
3118 case HCI_OP_WRITE_VOICE_SETTING:
3119 hci_cc_write_voice_setting(hdev, skb);
3120 break;
3121
3122 case HCI_OP_READ_NUM_SUPPORTED_IAC:
3123 hci_cc_read_num_supported_iac(hdev, skb);
3124 break;
3125
3126 case HCI_OP_WRITE_SSP_MODE:
3127 hci_cc_write_ssp_mode(hdev, skb);
3128 break;
3129
3130 case HCI_OP_WRITE_SC_SUPPORT:
3131 hci_cc_write_sc_support(hdev, skb);
3132 break;
3133
3134 case HCI_OP_READ_LOCAL_VERSION:
3135 hci_cc_read_local_version(hdev, skb);
3136 break;
3137
3138 case HCI_OP_READ_LOCAL_COMMANDS:
3139 hci_cc_read_local_commands(hdev, skb);
3140 break;
3141
3142 case HCI_OP_READ_LOCAL_FEATURES:
3143 hci_cc_read_local_features(hdev, skb);
3144 break;
3145
3146 case HCI_OP_READ_LOCAL_EXT_FEATURES:
3147 hci_cc_read_local_ext_features(hdev, skb);
3148 break;
3149
3150 case HCI_OP_READ_BUFFER_SIZE:
3151 hci_cc_read_buffer_size(hdev, skb);
3152 break;
3153
3154 case HCI_OP_READ_BD_ADDR:
3155 hci_cc_read_bd_addr(hdev, skb);
3156 break;
3157
3158 case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
3159 hci_cc_read_page_scan_activity(hdev, skb);
3160 break;
3161
3162 case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY:
3163 hci_cc_write_page_scan_activity(hdev, skb);
3164 break;
3165
3166 case HCI_OP_READ_PAGE_SCAN_TYPE:
3167 hci_cc_read_page_scan_type(hdev, skb);
3168 break;
3169
3170 case HCI_OP_WRITE_PAGE_SCAN_TYPE:
3171 hci_cc_write_page_scan_type(hdev, skb);
3172 break;
3173
3174 case HCI_OP_READ_DATA_BLOCK_SIZE:
3175 hci_cc_read_data_block_size(hdev, skb);
3176 break;
3177
3178 case HCI_OP_READ_FLOW_CONTROL_MODE:
3179 hci_cc_read_flow_control_mode(hdev, skb);
3180 break;
3181
3182 case HCI_OP_READ_LOCAL_AMP_INFO:
3183 hci_cc_read_local_amp_info(hdev, skb);
3184 break;
3185
3186 case HCI_OP_READ_CLOCK:
3187 hci_cc_read_clock(hdev, skb);
3188 break;
3189
3190 case HCI_OP_READ_INQ_RSP_TX_POWER:
3191 hci_cc_read_inq_rsp_tx_power(hdev, skb);
3192 break;
3193
3194 case HCI_OP_PIN_CODE_REPLY:
3195 hci_cc_pin_code_reply(hdev, skb);
3196 break;
3197
3198 case HCI_OP_PIN_CODE_NEG_REPLY:
3199 hci_cc_pin_code_neg_reply(hdev, skb);
3200 break;
3201
3202 case HCI_OP_READ_LOCAL_OOB_DATA:
3203 hci_cc_read_local_oob_data(hdev, skb);
3204 break;
3205
3206 case HCI_OP_READ_LOCAL_OOB_EXT_DATA:
3207 hci_cc_read_local_oob_ext_data(hdev, skb);
3208 break;
3209
3210 case HCI_OP_LE_READ_BUFFER_SIZE:
3211 hci_cc_le_read_buffer_size(hdev, skb);
3212 break;
3213
3214 case HCI_OP_LE_READ_LOCAL_FEATURES:
3215 hci_cc_le_read_local_features(hdev, skb);
3216 break;
3217
3218 case HCI_OP_LE_READ_ADV_TX_POWER:
3219 hci_cc_le_read_adv_tx_power(hdev, skb);
3220 break;
3221
3222 case HCI_OP_USER_CONFIRM_REPLY:
3223 hci_cc_user_confirm_reply(hdev, skb);
3224 break;
3225
3226 case HCI_OP_USER_CONFIRM_NEG_REPLY:
3227 hci_cc_user_confirm_neg_reply(hdev, skb);
3228 break;
3229
3230 case HCI_OP_USER_PASSKEY_REPLY:
3231 hci_cc_user_passkey_reply(hdev, skb);
3232 break;
3233
3234 case HCI_OP_USER_PASSKEY_NEG_REPLY:
3235 hci_cc_user_passkey_neg_reply(hdev, skb);
3236 break;
3237
3238 case HCI_OP_LE_SET_RANDOM_ADDR:
3239 hci_cc_le_set_random_addr(hdev, skb);
3240 break;
3241
3242 case HCI_OP_LE_SET_ADV_ENABLE:
3243 hci_cc_le_set_adv_enable(hdev, skb);
3244 break;
3245
3246 case HCI_OP_LE_SET_SCAN_PARAM:
3247 hci_cc_le_set_scan_param(hdev, skb);
3248 break;
3249
3250 case HCI_OP_LE_SET_SCAN_ENABLE:
3251 hci_cc_le_set_scan_enable(hdev, skb);
3252 break;
3253
3254 case HCI_OP_LE_READ_WHITE_LIST_SIZE:
3255 hci_cc_le_read_white_list_size(hdev, skb);
3256 break;
3257
3258 case HCI_OP_LE_CLEAR_WHITE_LIST:
3259 hci_cc_le_clear_white_list(hdev, skb);
3260 break;
3261
3262 case HCI_OP_LE_ADD_TO_WHITE_LIST:
3263 hci_cc_le_add_to_white_list(hdev, skb);
3264 break;
3265
3266 case HCI_OP_LE_DEL_FROM_WHITE_LIST:
3267 hci_cc_le_del_from_white_list(hdev, skb);
3268 break;
3269
3270 case HCI_OP_LE_READ_SUPPORTED_STATES:
3271 hci_cc_le_read_supported_states(hdev, skb);
3272 break;
3273
3274 case HCI_OP_LE_READ_DEF_DATA_LEN:
3275 hci_cc_le_read_def_data_len(hdev, skb);
3276 break;
3277
3278 case HCI_OP_LE_WRITE_DEF_DATA_LEN:
3279 hci_cc_le_write_def_data_len(hdev, skb);
3280 break;
3281
3282 case HCI_OP_LE_CLEAR_RESOLV_LIST:
3283 hci_cc_le_clear_resolv_list(hdev, skb);
3284 break;
3285
3286 case HCI_OP_LE_READ_RESOLV_LIST_SIZE:
3287 hci_cc_le_read_resolv_list_size(hdev, skb);
3288 break;
3289
3290 case HCI_OP_LE_SET_ADDR_RESOLV_ENABLE:
3291 hci_cc_le_set_addr_resolution_enable(hdev, skb);
3292 break;
3293
3294 case HCI_OP_LE_READ_MAX_DATA_LEN:
3295 hci_cc_le_read_max_data_len(hdev, skb);
3296 break;
3297
3298 case HCI_OP_WRITE_LE_HOST_SUPPORTED:
3299 hci_cc_write_le_host_supported(hdev, skb);
3300 break;
3301
3302 case HCI_OP_LE_SET_ADV_PARAM:
3303 hci_cc_set_adv_param(hdev, skb);
3304 break;
3305
3306 case HCI_OP_READ_RSSI:
3307 hci_cc_read_rssi(hdev, skb);
3308 break;
3309
3310 case HCI_OP_READ_TX_POWER:
3311 hci_cc_read_tx_power(hdev, skb);
3312 break;
3313
3314 case HCI_OP_WRITE_SSP_DEBUG_MODE:
3315 hci_cc_write_ssp_debug_mode(hdev, skb);
3316 break;
3317
3318 case HCI_OP_LE_SET_EXT_SCAN_PARAMS:
3319 hci_cc_le_set_ext_scan_param(hdev, skb);
3320 break;
3321
3322 case HCI_OP_LE_SET_EXT_SCAN_ENABLE:
3323 hci_cc_le_set_ext_scan_enable(hdev, skb);
3324 break;
3325
3326 case HCI_OP_LE_SET_DEFAULT_PHY:
3327 hci_cc_le_set_default_phy(hdev, skb);
3328 break;
3329
3330 case HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS:
3331 hci_cc_le_read_num_adv_sets(hdev, skb);
3332 break;
3333
3334 case HCI_OP_LE_SET_EXT_ADV_PARAMS:
3335 hci_cc_set_ext_adv_param(hdev, skb);
3336 break;
3337
3338 case HCI_OP_LE_SET_EXT_ADV_ENABLE:
3339 hci_cc_le_set_ext_adv_enable(hdev, skb);
3340 break;
3341
3342 case HCI_OP_LE_SET_ADV_SET_RAND_ADDR:
3343 hci_cc_le_set_adv_set_random_addr(hdev, skb);
3344 break;
3345
3346 default:
3347 BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
3348 break;
3349 }
3350
3351 if (*opcode != HCI_OP_NOP)
3352 cancel_delayed_work(&hdev->cmd_timer);
3353
3354 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
3355 atomic_set(&hdev->cmd_cnt, 1);
3356
3357 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
3358 req_complete_skb);
3359
3360 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
3361 bt_dev_err(hdev,
3362 "unexpected event for opcode 0x%4.4x", *opcode);
3363 return;
3364 }
3365
3366 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
3367 queue_work(hdev->workqueue, &hdev->cmd_work);
3368}
3369
3370static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb,
3371 u16 *opcode, u8 *status,
3372 hci_req_complete_t *req_complete,
3373 hci_req_complete_skb_t *req_complete_skb)
3374{
3375 struct hci_ev_cmd_status *ev = (void *) skb->data;
3376
3377 skb_pull(skb, sizeof(*ev));
3378
3379 *opcode = __le16_to_cpu(ev->opcode);
3380 *status = ev->status;
3381
3382 switch (*opcode) {
3383 case HCI_OP_INQUIRY:
3384 hci_cs_inquiry(hdev, ev->status);
3385 break;
3386
3387 case HCI_OP_CREATE_CONN:
3388 hci_cs_create_conn(hdev, ev->status);
3389 break;
3390
3391 case HCI_OP_DISCONNECT:
3392 hci_cs_disconnect(hdev, ev->status);
3393 break;
3394
3395 case HCI_OP_ADD_SCO:
3396 hci_cs_add_sco(hdev, ev->status);
3397 break;
3398
3399 case HCI_OP_AUTH_REQUESTED:
3400 hci_cs_auth_requested(hdev, ev->status);
3401 break;
3402
3403 case HCI_OP_SET_CONN_ENCRYPT:
3404 hci_cs_set_conn_encrypt(hdev, ev->status);
3405 break;
3406
3407 case HCI_OP_REMOTE_NAME_REQ:
3408 hci_cs_remote_name_req(hdev, ev->status);
3409 break;
3410
3411 case HCI_OP_READ_REMOTE_FEATURES:
3412 hci_cs_read_remote_features(hdev, ev->status);
3413 break;
3414
3415 case HCI_OP_READ_REMOTE_EXT_FEATURES:
3416 hci_cs_read_remote_ext_features(hdev, ev->status);
3417 break;
3418
3419 case HCI_OP_SETUP_SYNC_CONN:
3420 hci_cs_setup_sync_conn(hdev, ev->status);
3421 break;
3422
3423 case HCI_OP_SNIFF_MODE:
3424 hci_cs_sniff_mode(hdev, ev->status);
3425 break;
3426
3427 case HCI_OP_EXIT_SNIFF_MODE:
3428 hci_cs_exit_sniff_mode(hdev, ev->status);
3429 break;
3430
3431 case HCI_OP_SWITCH_ROLE:
3432 hci_cs_switch_role(hdev, ev->status);
3433 break;
3434
3435 case HCI_OP_LE_CREATE_CONN:
3436 hci_cs_le_create_conn(hdev, ev->status);
3437 break;
3438
3439 case HCI_OP_LE_READ_REMOTE_FEATURES:
3440 hci_cs_le_read_remote_features(hdev, ev->status);
3441 break;
3442
3443 case HCI_OP_LE_START_ENC:
3444 hci_cs_le_start_enc(hdev, ev->status);
3445 break;
3446
3447 case HCI_OP_LE_EXT_CREATE_CONN:
3448 hci_cs_le_ext_create_conn(hdev, ev->status);
3449 break;
3450
3451 default:
3452 BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
3453 break;
3454 }
3455
3456 if (*opcode != HCI_OP_NOP)
3457 cancel_delayed_work(&hdev->cmd_timer);
3458
3459 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
3460 atomic_set(&hdev->cmd_cnt, 1);
3461
3462 /* Indicate request completion if the command failed. Also, if
3463 * we're not waiting for a special event and we get a success
3464 * command status we should try to flag the request as completed
3465 * (since for this kind of commands there will not be a command
3466 * complete event).
3467 */
3468 if (ev->status ||
3469 (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->hci.req_event))
3470 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
3471 req_complete_skb);
3472
3473 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
3474 bt_dev_err(hdev,
3475 "unexpected event for opcode 0x%4.4x", *opcode);
3476 return;
3477 }
3478
3479 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
3480 queue_work(hdev->workqueue, &hdev->cmd_work);
3481}
3482
3483static void hci_hardware_error_evt(struct hci_dev *hdev, struct sk_buff *skb)
3484{
3485 struct hci_ev_hardware_error *ev = (void *) skb->data;
3486
3487 hdev->hw_error_code = ev->code;
3488
3489 queue_work(hdev->req_workqueue, &hdev->error_reset);
3490}
3491
3492static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3493{
3494 struct hci_ev_role_change *ev = (void *) skb->data;
3495 struct hci_conn *conn;
3496
3497 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3498
3499 hci_dev_lock(hdev);
3500
3501 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3502 if (conn) {
3503 if (!ev->status)
3504 conn->role = ev->role;
3505
3506 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3507
3508 hci_role_switch_cfm(conn, ev->status, ev->role);
3509 }
3510
3511 hci_dev_unlock(hdev);
3512}
3513
3514static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
3515{
3516 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
3517 int i;
3518
3519 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
3520 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
3521 return;
3522 }
3523
3524 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
3525 ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
3526 BT_DBG("%s bad parameters", hdev->name);
3527 return;
3528 }
3529
3530 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
3531
3532 for (i = 0; i < ev->num_hndl; i++) {
3533 struct hci_comp_pkts_info *info = &ev->handles[i];
3534 struct hci_conn *conn;
3535 __u16 handle, count;
3536
3537 handle = __le16_to_cpu(info->handle);
3538 count = __le16_to_cpu(info->count);
3539
3540 conn = hci_conn_hash_lookup_handle(hdev, handle);
3541 if (!conn)
3542 continue;
3543
3544 conn->sent -= count;
3545
3546 switch (conn->type) {
3547 case ACL_LINK:
3548 hdev->acl_cnt += count;
3549 if (hdev->acl_cnt > hdev->acl_pkts)
3550 hdev->acl_cnt = hdev->acl_pkts;
3551 break;
3552
3553 case LE_LINK:
3554 if (hdev->le_pkts) {
3555 hdev->le_cnt += count;
3556 if (hdev->le_cnt > hdev->le_pkts)
3557 hdev->le_cnt = hdev->le_pkts;
3558 } else {
3559 hdev->acl_cnt += count;
3560 if (hdev->acl_cnt > hdev->acl_pkts)
3561 hdev->acl_cnt = hdev->acl_pkts;
3562 }
3563 break;
3564
3565 case SCO_LINK:
3566 hdev->sco_cnt += count;
3567 if (hdev->sco_cnt > hdev->sco_pkts)
3568 hdev->sco_cnt = hdev->sco_pkts;
3569 break;
3570
3571 default:
3572 bt_dev_err(hdev, "unknown type %d conn %p",
3573 conn->type, conn);
3574 break;
3575 }
3576 }
3577
3578 queue_work(hdev->workqueue, &hdev->tx_work);
3579}
3580
3581static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
3582 __u16 handle)
3583{
3584 struct hci_chan *chan;
3585
3586 switch (hdev->dev_type) {
3587 case HCI_PRIMARY:
3588 return hci_conn_hash_lookup_handle(hdev, handle);
3589 case HCI_AMP:
3590 chan = hci_chan_lookup_handle(hdev, handle);
3591 if (chan)
3592 return chan->conn;
3593 break;
3594 default:
3595 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
3596 break;
3597 }
3598
3599 return NULL;
3600}
3601
3602static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
3603{
3604 struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
3605 int i;
3606
3607 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
3608 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
3609 return;
3610 }
3611
3612 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
3613 ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
3614 BT_DBG("%s bad parameters", hdev->name);
3615 return;
3616 }
3617
3618 BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
3619 ev->num_hndl);
3620
3621 for (i = 0; i < ev->num_hndl; i++) {
3622 struct hci_comp_blocks_info *info = &ev->handles[i];
3623 struct hci_conn *conn = NULL;
3624 __u16 handle, block_count;
3625
3626 handle = __le16_to_cpu(info->handle);
3627 block_count = __le16_to_cpu(info->blocks);
3628
3629 conn = __hci_conn_lookup_handle(hdev, handle);
3630 if (!conn)
3631 continue;
3632
3633 conn->sent -= block_count;
3634
3635 switch (conn->type) {
3636 case ACL_LINK:
3637 case AMP_LINK:
3638 hdev->block_cnt += block_count;
3639 if (hdev->block_cnt > hdev->num_blocks)
3640 hdev->block_cnt = hdev->num_blocks;
3641 break;
3642
3643 default:
3644 bt_dev_err(hdev, "unknown type %d conn %p",
3645 conn->type, conn);
3646 break;
3647 }
3648 }
3649
3650 queue_work(hdev->workqueue, &hdev->tx_work);
3651}
3652
3653static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3654{
3655 struct hci_ev_mode_change *ev = (void *) skb->data;
3656 struct hci_conn *conn;
3657
3658 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3659
3660 hci_dev_lock(hdev);
3661
3662 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3663 if (conn) {
3664 conn->mode = ev->mode;
3665
3666 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
3667 &conn->flags)) {
3668 if (conn->mode == HCI_CM_ACTIVE)
3669 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3670 else
3671 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3672 }
3673
3674 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
3675 hci_sco_setup(conn, ev->status);
3676 }
3677
3678 hci_dev_unlock(hdev);
3679}
3680
3681static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3682{
3683 struct hci_ev_pin_code_req *ev = (void *) skb->data;
3684 struct hci_conn *conn;
3685
3686 BT_DBG("%s", hdev->name);
3687
3688 hci_dev_lock(hdev);
3689
3690 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3691 if (!conn)
3692 goto unlock;
3693
3694 if (conn->state == BT_CONNECTED) {
3695 hci_conn_hold(conn);
3696 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3697 hci_conn_drop(conn);
3698 }
3699
3700 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
3701 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
3702 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
3703 sizeof(ev->bdaddr), &ev->bdaddr);
3704 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
3705 u8 secure;
3706
3707 if (conn->pending_sec_level == BT_SECURITY_HIGH)
3708 secure = 1;
3709 else
3710 secure = 0;
3711
3712 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
3713 }
3714
3715unlock:
3716 hci_dev_unlock(hdev);
3717}
3718
3719static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
3720{
3721 if (key_type == HCI_LK_CHANGED_COMBINATION)
3722 return;
3723
3724 conn->pin_length = pin_len;
3725 conn->key_type = key_type;
3726
3727 switch (key_type) {
3728 case HCI_LK_LOCAL_UNIT:
3729 case HCI_LK_REMOTE_UNIT:
3730 case HCI_LK_DEBUG_COMBINATION:
3731 return;
3732 case HCI_LK_COMBINATION:
3733 if (pin_len == 16)
3734 conn->pending_sec_level = BT_SECURITY_HIGH;
3735 else
3736 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3737 break;
3738 case HCI_LK_UNAUTH_COMBINATION_P192:
3739 case HCI_LK_UNAUTH_COMBINATION_P256:
3740 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3741 break;
3742 case HCI_LK_AUTH_COMBINATION_P192:
3743 conn->pending_sec_level = BT_SECURITY_HIGH;
3744 break;
3745 case HCI_LK_AUTH_COMBINATION_P256:
3746 conn->pending_sec_level = BT_SECURITY_FIPS;
3747 break;
3748 }
3749}
3750
3751static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3752{
3753 struct hci_ev_link_key_req *ev = (void *) skb->data;
3754 struct hci_cp_link_key_reply cp;
3755 struct hci_conn *conn;
3756 struct link_key *key;
3757
3758 BT_DBG("%s", hdev->name);
3759
3760 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3761 return;
3762
3763 hci_dev_lock(hdev);
3764
3765 key = hci_find_link_key(hdev, &ev->bdaddr);
3766 if (!key) {
3767 BT_DBG("%s link key not found for %pMR", hdev->name,
3768 &ev->bdaddr);
3769 goto not_found;
3770 }
3771
3772 BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
3773 &ev->bdaddr);
3774
3775 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3776 if (conn) {
3777 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
3778
3779 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
3780 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
3781 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
3782 BT_DBG("%s ignoring unauthenticated key", hdev->name);
3783 goto not_found;
3784 }
3785
3786 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
3787 (conn->pending_sec_level == BT_SECURITY_HIGH ||
3788 conn->pending_sec_level == BT_SECURITY_FIPS)) {
3789 BT_DBG("%s ignoring key unauthenticated for high security",
3790 hdev->name);
3791 goto not_found;
3792 }
3793
3794 conn_set_key(conn, key->type, key->pin_len);
3795 }
3796
3797 bacpy(&cp.bdaddr, &ev->bdaddr);
3798 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
3799
3800 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
3801
3802 hci_dev_unlock(hdev);
3803
3804 return;
3805
3806not_found:
3807 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
3808 hci_dev_unlock(hdev);
3809}
3810
3811static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
3812{
3813 struct hci_ev_link_key_notify *ev = (void *) skb->data;
3814 struct hci_conn *conn;
3815 struct link_key *key;
3816 bool persistent;
3817 u8 pin_len = 0;
3818
3819 BT_DBG("%s", hdev->name);
3820
3821 hci_dev_lock(hdev);
3822
3823 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3824 if (!conn)
3825 goto unlock;
3826
3827 hci_conn_hold(conn);
3828 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3829 hci_conn_drop(conn);
3830
3831 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
3832 conn_set_key(conn, ev->key_type, conn->pin_length);
3833
3834 if (!hci_dev_test_flag(hdev, HCI_MGMT))
3835 goto unlock;
3836
3837 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
3838 ev->key_type, pin_len, &persistent);
3839 if (!key)
3840 goto unlock;
3841
3842 /* Update connection information since adding the key will have
3843 * fixed up the type in the case of changed combination keys.
3844 */
3845 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
3846 conn_set_key(conn, key->type, key->pin_len);
3847
3848 mgmt_new_link_key(hdev, key, persistent);
3849
3850 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
3851 * is set. If it's not set simply remove the key from the kernel
3852 * list (we've still notified user space about it but with
3853 * store_hint being 0).
3854 */
3855 if (key->type == HCI_LK_DEBUG_COMBINATION &&
3856 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
3857 list_del_rcu(&key->list);
3858 kfree_rcu(key, rcu);
3859 goto unlock;
3860 }
3861
3862 if (persistent)
3863 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3864 else
3865 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3866
3867unlock:
3868 hci_dev_unlock(hdev);
3869}
3870
3871static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
3872{
3873 struct hci_ev_clock_offset *ev = (void *) skb->data;
3874 struct hci_conn *conn;
3875
3876 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3877
3878 hci_dev_lock(hdev);
3879
3880 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3881 if (conn && !ev->status) {
3882 struct inquiry_entry *ie;
3883
3884 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3885 if (ie) {
3886 ie->data.clock_offset = ev->clock_offset;
3887 ie->timestamp = jiffies;
3888 }
3889 }
3890
3891 hci_dev_unlock(hdev);
3892}
3893
3894static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3895{
3896 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
3897 struct hci_conn *conn;
3898
3899 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3900
3901 hci_dev_lock(hdev);
3902
3903 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3904 if (conn && !ev->status)
3905 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
3906
3907 hci_dev_unlock(hdev);
3908}
3909
3910static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
3911{
3912 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
3913 struct inquiry_entry *ie;
3914
3915 BT_DBG("%s", hdev->name);
3916
3917 hci_dev_lock(hdev);
3918
3919 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3920 if (ie) {
3921 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
3922 ie->timestamp = jiffies;
3923 }
3924
3925 hci_dev_unlock(hdev);
3926}
3927
3928static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
3929 struct sk_buff *skb)
3930{
3931 struct inquiry_data data;
3932 int num_rsp = *((__u8 *) skb->data);
3933
3934 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3935
3936 if (!num_rsp)
3937 return;
3938
3939 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
3940 return;
3941
3942 hci_dev_lock(hdev);
3943
3944 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
3945 struct inquiry_info_with_rssi_and_pscan_mode *info;
3946 info = (void *) (skb->data + 1);
3947
3948 for (; num_rsp; num_rsp--, info++) {
3949 u32 flags;
3950
3951 bacpy(&data.bdaddr, &info->bdaddr);
3952 data.pscan_rep_mode = info->pscan_rep_mode;
3953 data.pscan_period_mode = info->pscan_period_mode;
3954 data.pscan_mode = info->pscan_mode;
3955 memcpy(data.dev_class, info->dev_class, 3);
3956 data.clock_offset = info->clock_offset;
3957 data.rssi = info->rssi;
3958 data.ssp_mode = 0x00;
3959
3960 flags = hci_inquiry_cache_update(hdev, &data, false);
3961
3962 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3963 info->dev_class, info->rssi,
3964 flags, NULL, 0, NULL, 0);
3965 }
3966 } else {
3967 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
3968
3969 for (; num_rsp; num_rsp--, info++) {
3970 u32 flags;
3971
3972 bacpy(&data.bdaddr, &info->bdaddr);
3973 data.pscan_rep_mode = info->pscan_rep_mode;
3974 data.pscan_period_mode = info->pscan_period_mode;
3975 data.pscan_mode = 0x00;
3976 memcpy(data.dev_class, info->dev_class, 3);
3977 data.clock_offset = info->clock_offset;
3978 data.rssi = info->rssi;
3979 data.ssp_mode = 0x00;
3980
3981 flags = hci_inquiry_cache_update(hdev, &data, false);
3982
3983 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3984 info->dev_class, info->rssi,
3985 flags, NULL, 0, NULL, 0);
3986 }
3987 }
3988
3989 hci_dev_unlock(hdev);
3990}
3991
3992static void hci_remote_ext_features_evt(struct hci_dev *hdev,
3993 struct sk_buff *skb)
3994{
3995 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
3996 struct hci_conn *conn;
3997
3998 BT_DBG("%s", hdev->name);
3999
4000 hci_dev_lock(hdev);
4001
4002 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4003 if (!conn)
4004 goto unlock;
4005
4006 if (ev->page < HCI_MAX_PAGES)
4007 memcpy(conn->features[ev->page], ev->features, 8);
4008
4009 if (!ev->status && ev->page == 0x01) {
4010 struct inquiry_entry *ie;
4011
4012 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4013 if (ie)
4014 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4015
4016 if (ev->features[0] & LMP_HOST_SSP) {
4017 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4018 } else {
4019 /* It is mandatory by the Bluetooth specification that
4020 * Extended Inquiry Results are only used when Secure
4021 * Simple Pairing is enabled, but some devices violate
4022 * this.
4023 *
4024 * To make these devices work, the internal SSP
4025 * enabled flag needs to be cleared if the remote host
4026 * features do not indicate SSP support */
4027 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4028 }
4029
4030 if (ev->features[0] & LMP_HOST_SC)
4031 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
4032 }
4033
4034 if (conn->state != BT_CONFIG)
4035 goto unlock;
4036
4037 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
4038 struct hci_cp_remote_name_req cp;
4039 memset(&cp, 0, sizeof(cp));
4040 bacpy(&cp.bdaddr, &conn->dst);
4041 cp.pscan_rep_mode = 0x02;
4042 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
4043 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4044 mgmt_device_connected(hdev, conn, 0, NULL, 0);
4045
4046 if (!hci_outgoing_auth_needed(hdev, conn)) {
4047 conn->state = BT_CONNECTED;
4048 hci_connect_cfm(conn, ev->status);
4049 hci_conn_drop(conn);
4050 }
4051
4052unlock:
4053 hci_dev_unlock(hdev);
4054}
4055
4056static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
4057 struct sk_buff *skb)
4058{
4059 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
4060 struct hci_conn *conn;
4061
4062 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4063
4064 hci_dev_lock(hdev);
4065
4066 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
4067 if (!conn) {
4068 if (ev->link_type == ESCO_LINK)
4069 goto unlock;
4070
4071 /* When the link type in the event indicates SCO connection
4072 * and lookup of the connection object fails, then check
4073 * if an eSCO connection object exists.
4074 *
4075 * The core limits the synchronous connections to either
4076 * SCO or eSCO. The eSCO connection is preferred and tried
4077 * to be setup first and until successfully established,
4078 * the link type will be hinted as eSCO.
4079 */
4080 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
4081 if (!conn)
4082 goto unlock;
4083 }
4084
4085 switch (ev->status) {
4086 case 0x00:
4087 conn->handle = __le16_to_cpu(ev->handle);
4088 conn->state = BT_CONNECTED;
4089 conn->type = ev->link_type;
4090
4091 hci_debugfs_create_conn(conn);
4092 hci_conn_add_sysfs(conn);
4093 break;
4094
4095 case 0x10: /* Connection Accept Timeout */
4096 case 0x0d: /* Connection Rejected due to Limited Resources */
4097 case 0x11: /* Unsupported Feature or Parameter Value */
4098 case 0x1c: /* SCO interval rejected */
4099 case 0x1a: /* Unsupported Remote Feature */
4100 case 0x1f: /* Unspecified error */
4101 case 0x20: /* Unsupported LMP Parameter value */
4102 if (conn->out) {
4103 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
4104 (hdev->esco_type & EDR_ESCO_MASK);
4105 if (hci_setup_sync(conn, conn->link->handle))
4106 goto unlock;
4107 }
4108 /* fall through */
4109
4110 default:
4111 conn->state = BT_CLOSED;
4112 break;
4113 }
4114
4115 hci_connect_cfm(conn, ev->status);
4116 if (ev->status)
4117 hci_conn_del(conn);
4118
4119unlock:
4120 hci_dev_unlock(hdev);
4121}
4122
4123static inline size_t eir_get_length(u8 *eir, size_t eir_len)
4124{
4125 size_t parsed = 0;
4126
4127 while (parsed < eir_len) {
4128 u8 field_len = eir[0];
4129
4130 if (field_len == 0)
4131 return parsed;
4132
4133 parsed += field_len + 1;
4134 eir += field_len + 1;
4135 }
4136
4137 return eir_len;
4138}
4139
4140static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
4141 struct sk_buff *skb)
4142{
4143 struct inquiry_data data;
4144 struct extended_inquiry_info *info = (void *) (skb->data + 1);
4145 int num_rsp = *((__u8 *) skb->data);
4146 size_t eir_len;
4147
4148 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
4149
4150 if (!num_rsp)
4151 return;
4152
4153 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
4154 return;
4155
4156 hci_dev_lock(hdev);
4157
4158 for (; num_rsp; num_rsp--, info++) {
4159 u32 flags;
4160 bool name_known;
4161
4162 bacpy(&data.bdaddr, &info->bdaddr);
4163 data.pscan_rep_mode = info->pscan_rep_mode;
4164 data.pscan_period_mode = info->pscan_period_mode;
4165 data.pscan_mode = 0x00;
4166 memcpy(data.dev_class, info->dev_class, 3);
4167 data.clock_offset = info->clock_offset;
4168 data.rssi = info->rssi;
4169 data.ssp_mode = 0x01;
4170
4171 if (hci_dev_test_flag(hdev, HCI_MGMT))
4172 name_known = eir_get_data(info->data,
4173 sizeof(info->data),
4174 EIR_NAME_COMPLETE, NULL);
4175 else
4176 name_known = true;
4177
4178 flags = hci_inquiry_cache_update(hdev, &data, name_known);
4179
4180 eir_len = eir_get_length(info->data, sizeof(info->data));
4181
4182 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
4183 info->dev_class, info->rssi,
4184 flags, info->data, eir_len, NULL, 0);
4185 }
4186
4187 hci_dev_unlock(hdev);
4188}
4189
4190static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
4191 struct sk_buff *skb)
4192{
4193 struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
4194 struct hci_conn *conn;
4195
4196 BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status,
4197 __le16_to_cpu(ev->handle));
4198
4199 hci_dev_lock(hdev);
4200
4201 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4202 if (!conn)
4203 goto unlock;
4204
4205 /* For BR/EDR the necessary steps are taken through the
4206 * auth_complete event.
4207 */
4208 if (conn->type != LE_LINK)
4209 goto unlock;
4210
4211 if (!ev->status)
4212 conn->sec_level = conn->pending_sec_level;
4213
4214 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
4215
4216 if (ev->status && conn->state == BT_CONNECTED) {
4217 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
4218 hci_conn_drop(conn);
4219 goto unlock;
4220 }
4221
4222 if (conn->state == BT_CONFIG) {
4223 if (!ev->status)
4224 conn->state = BT_CONNECTED;
4225
4226 hci_connect_cfm(conn, ev->status);
4227 hci_conn_drop(conn);
4228 } else {
4229 hci_auth_cfm(conn, ev->status);
4230
4231 hci_conn_hold(conn);
4232 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4233 hci_conn_drop(conn);
4234 }
4235
4236unlock:
4237 hci_dev_unlock(hdev);
4238}
4239
4240static u8 hci_get_auth_req(struct hci_conn *conn)
4241{
4242 /* If remote requests no-bonding follow that lead */
4243 if (conn->remote_auth == HCI_AT_NO_BONDING ||
4244 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
4245 return conn->remote_auth | (conn->auth_type & 0x01);
4246
4247 /* If both remote and local have enough IO capabilities, require
4248 * MITM protection
4249 */
4250 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
4251 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
4252 return conn->remote_auth | 0x01;
4253
4254 /* No MITM protection possible so ignore remote requirement */
4255 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
4256}
4257
4258static u8 bredr_oob_data_present(struct hci_conn *conn)
4259{
4260 struct hci_dev *hdev = conn->hdev;
4261 struct oob_data *data;
4262
4263 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
4264 if (!data)
4265 return 0x00;
4266
4267 if (bredr_sc_enabled(hdev)) {
4268 /* When Secure Connections is enabled, then just
4269 * return the present value stored with the OOB
4270 * data. The stored value contains the right present
4271 * information. However it can only be trusted when
4272 * not in Secure Connection Only mode.
4273 */
4274 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
4275 return data->present;
4276
4277 /* When Secure Connections Only mode is enabled, then
4278 * the P-256 values are required. If they are not
4279 * available, then do not declare that OOB data is
4280 * present.
4281 */
4282 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
4283 !memcmp(data->hash256, ZERO_KEY, 16))
4284 return 0x00;
4285
4286 return 0x02;
4287 }
4288
4289 /* When Secure Connections is not enabled or actually
4290 * not supported by the hardware, then check that if
4291 * P-192 data values are present.
4292 */
4293 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
4294 !memcmp(data->hash192, ZERO_KEY, 16))
4295 return 0x00;
4296
4297 return 0x01;
4298}
4299
4300static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
4301{
4302 struct hci_ev_io_capa_request *ev = (void *) skb->data;
4303 struct hci_conn *conn;
4304
4305 BT_DBG("%s", hdev->name);
4306
4307 hci_dev_lock(hdev);
4308
4309 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4310 if (!conn)
4311 goto unlock;
4312
4313 hci_conn_hold(conn);
4314
4315 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4316 goto unlock;
4317
4318 /* Allow pairing if we're pairable, the initiators of the
4319 * pairing or if the remote is not requesting bonding.
4320 */
4321 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
4322 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
4323 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
4324 struct hci_cp_io_capability_reply cp;
4325
4326 bacpy(&cp.bdaddr, &ev->bdaddr);
4327 /* Change the IO capability from KeyboardDisplay
4328 * to DisplayYesNo as it is not supported by BT spec. */
4329 cp.capability = (conn->io_capability == 0x04) ?
4330 HCI_IO_DISPLAY_YESNO : conn->io_capability;
4331
4332 /* If we are initiators, there is no remote information yet */
4333 if (conn->remote_auth == 0xff) {
4334 /* Request MITM protection if our IO caps allow it
4335 * except for the no-bonding case.
4336 */
4337 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
4338 conn->auth_type != HCI_AT_NO_BONDING)
4339 conn->auth_type |= 0x01;
4340 } else {
4341 conn->auth_type = hci_get_auth_req(conn);
4342 }
4343
4344 /* If we're not bondable, force one of the non-bondable
4345 * authentication requirement values.
4346 */
4347 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
4348 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
4349
4350 cp.authentication = conn->auth_type;
4351 cp.oob_data = bredr_oob_data_present(conn);
4352
4353 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
4354 sizeof(cp), &cp);
4355 } else {
4356 struct hci_cp_io_capability_neg_reply cp;
4357
4358 bacpy(&cp.bdaddr, &ev->bdaddr);
4359 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
4360
4361 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
4362 sizeof(cp), &cp);
4363 }
4364
4365unlock:
4366 hci_dev_unlock(hdev);
4367}
4368
4369static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
4370{
4371 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
4372 struct hci_conn *conn;
4373
4374 BT_DBG("%s", hdev->name);
4375
4376 hci_dev_lock(hdev);
4377
4378 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4379 if (!conn)
4380 goto unlock;
4381
4382 conn->remote_cap = ev->capability;
4383 conn->remote_auth = ev->authentication;
4384
4385unlock:
4386 hci_dev_unlock(hdev);
4387}
4388
4389static void hci_user_confirm_request_evt(struct hci_dev *hdev,
4390 struct sk_buff *skb)
4391{
4392 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
4393 int loc_mitm, rem_mitm, confirm_hint = 0;
4394 struct hci_conn *conn;
4395
4396 BT_DBG("%s", hdev->name);
4397
4398 hci_dev_lock(hdev);
4399
4400 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4401 goto unlock;
4402
4403 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4404 if (!conn)
4405 goto unlock;
4406
4407 loc_mitm = (conn->auth_type & 0x01);
4408 rem_mitm = (conn->remote_auth & 0x01);
4409
4410 /* If we require MITM but the remote device can't provide that
4411 * (it has NoInputNoOutput) then reject the confirmation
4412 * request. We check the security level here since it doesn't
4413 * necessarily match conn->auth_type.
4414 */
4415 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
4416 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
4417 BT_DBG("Rejecting request: remote device can't provide MITM");
4418 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
4419 sizeof(ev->bdaddr), &ev->bdaddr);
4420 goto unlock;
4421 }
4422
4423 /* If no side requires MITM protection; auto-accept */
4424 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
4425 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
4426
4427 /* If we're not the initiators request authorization to
4428 * proceed from user space (mgmt_user_confirm with
4429 * confirm_hint set to 1). The exception is if neither
4430 * side had MITM or if the local IO capability is
4431 * NoInputNoOutput, in which case we do auto-accept
4432 */
4433 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
4434 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
4435 (loc_mitm || rem_mitm)) {
4436 BT_DBG("Confirming auto-accept as acceptor");
4437 confirm_hint = 1;
4438 goto confirm;
4439 }
4440
4441 BT_DBG("Auto-accept of user confirmation with %ums delay",
4442 hdev->auto_accept_delay);
4443
4444 if (hdev->auto_accept_delay > 0) {
4445 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
4446 queue_delayed_work(conn->hdev->workqueue,
4447 &conn->auto_accept_work, delay);
4448 goto unlock;
4449 }
4450
4451 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
4452 sizeof(ev->bdaddr), &ev->bdaddr);
4453 goto unlock;
4454 }
4455
4456confirm:
4457 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
4458 le32_to_cpu(ev->passkey), confirm_hint);
4459
4460unlock:
4461 hci_dev_unlock(hdev);
4462}
4463
4464static void hci_user_passkey_request_evt(struct hci_dev *hdev,
4465 struct sk_buff *skb)
4466{
4467 struct hci_ev_user_passkey_req *ev = (void *) skb->data;
4468
4469 BT_DBG("%s", hdev->name);
4470
4471 if (hci_dev_test_flag(hdev, HCI_MGMT))
4472 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
4473}
4474
4475static void hci_user_passkey_notify_evt(struct hci_dev *hdev,
4476 struct sk_buff *skb)
4477{
4478 struct hci_ev_user_passkey_notify *ev = (void *) skb->data;
4479 struct hci_conn *conn;
4480
4481 BT_DBG("%s", hdev->name);
4482
4483 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4484 if (!conn)
4485 return;
4486
4487 conn->passkey_notify = __le32_to_cpu(ev->passkey);
4488 conn->passkey_entered = 0;
4489
4490 if (hci_dev_test_flag(hdev, HCI_MGMT))
4491 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4492 conn->dst_type, conn->passkey_notify,
4493 conn->passkey_entered);
4494}
4495
4496static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
4497{
4498 struct hci_ev_keypress_notify *ev = (void *) skb->data;
4499 struct hci_conn *conn;
4500
4501 BT_DBG("%s", hdev->name);
4502
4503 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4504 if (!conn)
4505 return;
4506
4507 switch (ev->type) {
4508 case HCI_KEYPRESS_STARTED:
4509 conn->passkey_entered = 0;
4510 return;
4511
4512 case HCI_KEYPRESS_ENTERED:
4513 conn->passkey_entered++;
4514 break;
4515
4516 case HCI_KEYPRESS_ERASED:
4517 conn->passkey_entered--;
4518 break;
4519
4520 case HCI_KEYPRESS_CLEARED:
4521 conn->passkey_entered = 0;
4522 break;
4523
4524 case HCI_KEYPRESS_COMPLETED:
4525 return;
4526 }
4527
4528 if (hci_dev_test_flag(hdev, HCI_MGMT))
4529 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4530 conn->dst_type, conn->passkey_notify,
4531 conn->passkey_entered);
4532}
4533
4534static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
4535 struct sk_buff *skb)
4536{
4537 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
4538 struct hci_conn *conn;
4539
4540 BT_DBG("%s", hdev->name);
4541
4542 hci_dev_lock(hdev);
4543
4544 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4545 if (!conn)
4546 goto unlock;
4547
4548 /* Reset the authentication requirement to unknown */
4549 conn->remote_auth = 0xff;
4550
4551 /* To avoid duplicate auth_failed events to user space we check
4552 * the HCI_CONN_AUTH_PEND flag which will be set if we
4553 * initiated the authentication. A traditional auth_complete
4554 * event gets always produced as initiator and is also mapped to
4555 * the mgmt_auth_failed event */
4556 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
4557 mgmt_auth_failed(conn, ev->status);
4558
4559 hci_conn_drop(conn);
4560
4561unlock:
4562 hci_dev_unlock(hdev);
4563}
4564
4565static void hci_remote_host_features_evt(struct hci_dev *hdev,
4566 struct sk_buff *skb)
4567{
4568 struct hci_ev_remote_host_features *ev = (void *) skb->data;
4569 struct inquiry_entry *ie;
4570 struct hci_conn *conn;
4571
4572 BT_DBG("%s", hdev->name);
4573
4574 hci_dev_lock(hdev);
4575
4576 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4577 if (conn)
4578 memcpy(conn->features[1], ev->features, 8);
4579
4580 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4581 if (ie)
4582 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
4583
4584 hci_dev_unlock(hdev);
4585}
4586
4587static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
4588 struct sk_buff *skb)
4589{
4590 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
4591 struct oob_data *data;
4592
4593 BT_DBG("%s", hdev->name);
4594
4595 hci_dev_lock(hdev);
4596
4597 if (!hci_dev_test_flag(hdev, HCI_MGMT))
4598 goto unlock;
4599
4600 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
4601 if (!data) {
4602 struct hci_cp_remote_oob_data_neg_reply cp;
4603
4604 bacpy(&cp.bdaddr, &ev->bdaddr);
4605 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
4606 sizeof(cp), &cp);
4607 goto unlock;
4608 }
4609
4610 if (bredr_sc_enabled(hdev)) {
4611 struct hci_cp_remote_oob_ext_data_reply cp;
4612
4613 bacpy(&cp.bdaddr, &ev->bdaddr);
4614 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
4615 memset(cp.hash192, 0, sizeof(cp.hash192));
4616 memset(cp.rand192, 0, sizeof(cp.rand192));
4617 } else {
4618 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
4619 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
4620 }
4621 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
4622 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
4623
4624 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
4625 sizeof(cp), &cp);
4626 } else {
4627 struct hci_cp_remote_oob_data_reply cp;
4628
4629 bacpy(&cp.bdaddr, &ev->bdaddr);
4630 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
4631 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
4632
4633 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
4634 sizeof(cp), &cp);
4635 }
4636
4637unlock:
4638 hci_dev_unlock(hdev);
4639}
4640
4641#if IS_ENABLED(CONFIG_BT_HS)
4642static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
4643{
4644 struct hci_ev_channel_selected *ev = (void *)skb->data;
4645 struct hci_conn *hcon;
4646
4647 BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);
4648
4649 skb_pull(skb, sizeof(*ev));
4650
4651 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4652 if (!hcon)
4653 return;
4654
4655 amp_read_loc_assoc_final_data(hdev, hcon);
4656}
4657
4658static void hci_phy_link_complete_evt(struct hci_dev *hdev,
4659 struct sk_buff *skb)
4660{
4661 struct hci_ev_phy_link_complete *ev = (void *) skb->data;
4662 struct hci_conn *hcon, *bredr_hcon;
4663
4664 BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
4665 ev->status);
4666
4667 hci_dev_lock(hdev);
4668
4669 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4670 if (!hcon) {
4671 hci_dev_unlock(hdev);
4672 return;
4673 }
4674
4675 if (ev->status) {
4676 hci_conn_del(hcon);
4677 hci_dev_unlock(hdev);
4678 return;
4679 }
4680
4681 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
4682
4683 hcon->state = BT_CONNECTED;
4684 bacpy(&hcon->dst, &bredr_hcon->dst);
4685
4686 hci_conn_hold(hcon);
4687 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
4688 hci_conn_drop(hcon);
4689
4690 hci_debugfs_create_conn(hcon);
4691 hci_conn_add_sysfs(hcon);
4692
4693 amp_physical_cfm(bredr_hcon, hcon);
4694
4695 hci_dev_unlock(hdev);
4696}
4697
4698static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4699{
4700 struct hci_ev_logical_link_complete *ev = (void *) skb->data;
4701 struct hci_conn *hcon;
4702 struct hci_chan *hchan;
4703 struct amp_mgr *mgr;
4704
4705 BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
4706 hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
4707 ev->status);
4708
4709 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4710 if (!hcon)
4711 return;
4712
4713 /* Create AMP hchan */
4714 hchan = hci_chan_create(hcon);
4715 if (!hchan)
4716 return;
4717
4718 hchan->handle = le16_to_cpu(ev->handle);
4719
4720 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
4721
4722 mgr = hcon->amp_mgr;
4723 if (mgr && mgr->bredr_chan) {
4724 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
4725
4726 l2cap_chan_lock(bredr_chan);
4727
4728 bredr_chan->conn->mtu = hdev->block_mtu;
4729 l2cap_logical_cfm(bredr_chan, hchan, 0);
4730 hci_conn_hold(hcon);
4731
4732 l2cap_chan_unlock(bredr_chan);
4733 }
4734}
4735
4736static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
4737 struct sk_buff *skb)
4738{
4739 struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
4740 struct hci_chan *hchan;
4741
4742 BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
4743 le16_to_cpu(ev->handle), ev->status);
4744
4745 if (ev->status)
4746 return;
4747
4748 hci_dev_lock(hdev);
4749
4750 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
4751 if (!hchan)
4752 goto unlock;
4753
4754 amp_destroy_logical_link(hchan, ev->reason);
4755
4756unlock:
4757 hci_dev_unlock(hdev);
4758}
4759
4760static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
4761 struct sk_buff *skb)
4762{
4763 struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
4764 struct hci_conn *hcon;
4765
4766 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4767
4768 if (ev->status)
4769 return;
4770
4771 hci_dev_lock(hdev);
4772
4773 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4774 if (hcon) {
4775 hcon->state = BT_CLOSED;
4776 hci_conn_del(hcon);
4777 }
4778
4779 hci_dev_unlock(hdev);
4780}
4781#endif
4782
4783static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
4784 bdaddr_t *bdaddr, u8 bdaddr_type, u8 role, u16 handle,
4785 u16 interval, u16 latency, u16 supervision_timeout)
4786{
4787 struct hci_conn_params *params;
4788 struct hci_conn *conn;
4789 struct smp_irk *irk;
4790 u8 addr_type;
4791
4792 hci_dev_lock(hdev);
4793
4794 /* All controllers implicitly stop advertising in the event of a
4795 * connection, so ensure that the state bit is cleared.
4796 */
4797 hci_dev_clear_flag(hdev, HCI_LE_ADV);
4798
4799 conn = hci_lookup_le_connect(hdev);
4800 if (!conn) {
4801 conn = hci_conn_add(hdev, LE_LINK, bdaddr, role);
4802 if (!conn) {
4803 bt_dev_err(hdev, "no memory for new connection");
4804 goto unlock;
4805 }
4806
4807 conn->dst_type = bdaddr_type;
4808
4809 /* If we didn't have a hci_conn object previously
4810 * but we're in master role this must be something
4811 * initiated using a white list. Since white list based
4812 * connections are not "first class citizens" we don't
4813 * have full tracking of them. Therefore, we go ahead
4814 * with a "best effort" approach of determining the
4815 * initiator address based on the HCI_PRIVACY flag.
4816 */
4817 if (conn->out) {
4818 conn->resp_addr_type = bdaddr_type;
4819 bacpy(&conn->resp_addr, bdaddr);
4820 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
4821 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
4822 bacpy(&conn->init_addr, &hdev->rpa);
4823 } else {
4824 hci_copy_identity_address(hdev,
4825 &conn->init_addr,
4826 &conn->init_addr_type);
4827 }
4828 }
4829 } else {
4830 cancel_delayed_work(&conn->le_conn_timeout);
4831 }
4832
4833 if (!conn->out) {
4834 /* Set the responder (our side) address type based on
4835 * the advertising address type.
4836 */
4837 conn->resp_addr_type = hdev->adv_addr_type;
4838 if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
4839 /* In case of ext adv, resp_addr will be updated in
4840 * Adv Terminated event.
4841 */
4842 if (!ext_adv_capable(hdev))
4843 bacpy(&conn->resp_addr, &hdev->random_addr);
4844 } else {
4845 bacpy(&conn->resp_addr, &hdev->bdaddr);
4846 }
4847
4848 conn->init_addr_type = bdaddr_type;
4849 bacpy(&conn->init_addr, bdaddr);
4850
4851 /* For incoming connections, set the default minimum
4852 * and maximum connection interval. They will be used
4853 * to check if the parameters are in range and if not
4854 * trigger the connection update procedure.
4855 */
4856 conn->le_conn_min_interval = hdev->le_conn_min_interval;
4857 conn->le_conn_max_interval = hdev->le_conn_max_interval;
4858 }
4859
4860 /* Lookup the identity address from the stored connection
4861 * address and address type.
4862 *
4863 * When establishing connections to an identity address, the
4864 * connection procedure will store the resolvable random
4865 * address first. Now if it can be converted back into the
4866 * identity address, start using the identity address from
4867 * now on.
4868 */
4869 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
4870 if (irk) {
4871 bacpy(&conn->dst, &irk->bdaddr);
4872 conn->dst_type = irk->addr_type;
4873 }
4874
4875 if (status) {
4876 hci_le_conn_failed(conn, status);
4877 goto unlock;
4878 }
4879
4880 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
4881 addr_type = BDADDR_LE_PUBLIC;
4882 else
4883 addr_type = BDADDR_LE_RANDOM;
4884
4885 /* Drop the connection if the device is blocked */
4886 if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) {
4887 hci_conn_drop(conn);
4888 goto unlock;
4889 }
4890
4891 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4892 mgmt_device_connected(hdev, conn, 0, NULL, 0);
4893
4894 conn->sec_level = BT_SECURITY_LOW;
4895 conn->handle = handle;
4896 conn->state = BT_CONFIG;
4897
4898 conn->le_conn_interval = interval;
4899 conn->le_conn_latency = latency;
4900 conn->le_supv_timeout = supervision_timeout;
4901
4902 hci_debugfs_create_conn(conn);
4903 hci_conn_add_sysfs(conn);
4904
4905 if (!status) {
4906 /* The remote features procedure is defined for master
4907 * role only. So only in case of an initiated connection
4908 * request the remote features.
4909 *
4910 * If the local controller supports slave-initiated features
4911 * exchange, then requesting the remote features in slave
4912 * role is possible. Otherwise just transition into the
4913 * connected state without requesting the remote features.
4914 */
4915 if (conn->out ||
4916 (hdev->le_features[0] & HCI_LE_SLAVE_FEATURES)) {
4917 struct hci_cp_le_read_remote_features cp;
4918
4919 cp.handle = __cpu_to_le16(conn->handle);
4920
4921 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
4922 sizeof(cp), &cp);
4923
4924 hci_conn_hold(conn);
4925 } else {
4926 conn->state = BT_CONNECTED;
4927 hci_connect_cfm(conn, status);
4928 }
4929 } else {
4930 hci_connect_cfm(conn, status);
4931 }
4932
4933 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
4934 conn->dst_type);
4935 if (params) {
4936 list_del_init(&params->action);
4937 if (params->conn) {
4938 hci_conn_drop(params->conn);
4939 hci_conn_put(params->conn);
4940 params->conn = NULL;
4941 }
4942 }
4943
4944unlock:
4945 hci_update_background_scan(hdev);
4946 hci_dev_unlock(hdev);
4947}
4948
4949static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4950{
4951 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
4952
4953 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4954
4955 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
4956 ev->role, le16_to_cpu(ev->handle),
4957 le16_to_cpu(ev->interval),
4958 le16_to_cpu(ev->latency),
4959 le16_to_cpu(ev->supervision_timeout));
4960}
4961
4962static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev,
4963 struct sk_buff *skb)
4964{
4965 struct hci_ev_le_enh_conn_complete *ev = (void *) skb->data;
4966
4967 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4968
4969 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
4970 ev->role, le16_to_cpu(ev->handle),
4971 le16_to_cpu(ev->interval),
4972 le16_to_cpu(ev->latency),
4973 le16_to_cpu(ev->supervision_timeout));
4974}
4975
4976static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, struct sk_buff *skb)
4977{
4978 struct hci_evt_le_ext_adv_set_term *ev = (void *) skb->data;
4979 struct hci_conn *conn;
4980
4981 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4982
4983 if (ev->status)
4984 return;
4985
4986 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
4987 if (conn) {
4988 struct adv_info *adv_instance;
4989
4990 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM)
4991 return;
4992
4993 if (!hdev->cur_adv_instance) {
4994 bacpy(&conn->resp_addr, &hdev->random_addr);
4995 return;
4996 }
4997
4998 adv_instance = hci_find_adv_instance(hdev, hdev->cur_adv_instance);
4999 if (adv_instance)
5000 bacpy(&conn->resp_addr, &adv_instance->random_addr);
5001 }
5002}
5003
5004static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
5005 struct sk_buff *skb)
5006{
5007 struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
5008 struct hci_conn *conn;
5009
5010 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
5011
5012 if (ev->status)
5013 return;
5014
5015 hci_dev_lock(hdev);
5016
5017 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5018 if (conn) {
5019 conn->le_conn_interval = le16_to_cpu(ev->interval);
5020 conn->le_conn_latency = le16_to_cpu(ev->latency);
5021 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
5022 }
5023
5024 hci_dev_unlock(hdev);
5025}
5026
5027/* This function requires the caller holds hdev->lock */
5028static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
5029 bdaddr_t *addr,
5030 u8 addr_type, u8 adv_type,
5031 bdaddr_t *direct_rpa)
5032{
5033 struct hci_conn *conn;
5034 struct hci_conn_params *params;
5035
5036 /* If the event is not connectable don't proceed further */
5037 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
5038 return NULL;
5039
5040 /* Ignore if the device is blocked */
5041 if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type))
5042 return NULL;
5043
5044 /* Most controller will fail if we try to create new connections
5045 * while we have an existing one in slave role.
5046 */
5047 if (hdev->conn_hash.le_num_slave > 0)
5048 return NULL;
5049
5050 /* If we're not connectable only connect devices that we have in
5051 * our pend_le_conns list.
5052 */
5053 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
5054 addr_type);
5055 if (!params)
5056 return NULL;
5057
5058 if (!params->explicit_connect) {
5059 switch (params->auto_connect) {
5060 case HCI_AUTO_CONN_DIRECT:
5061 /* Only devices advertising with ADV_DIRECT_IND are
5062 * triggering a connection attempt. This is allowing
5063 * incoming connections from slave devices.
5064 */
5065 if (adv_type != LE_ADV_DIRECT_IND)
5066 return NULL;
5067 break;
5068 case HCI_AUTO_CONN_ALWAYS:
5069 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
5070 * are triggering a connection attempt. This means
5071 * that incoming connectioms from slave device are
5072 * accepted and also outgoing connections to slave
5073 * devices are established when found.
5074 */
5075 break;
5076 default:
5077 return NULL;
5078 }
5079 }
5080
5081 conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
5082 HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER,
5083 direct_rpa);
5084 if (!IS_ERR(conn)) {
5085 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
5086 * by higher layer that tried to connect, if no then
5087 * store the pointer since we don't really have any
5088 * other owner of the object besides the params that
5089 * triggered it. This way we can abort the connection if
5090 * the parameters get removed and keep the reference
5091 * count consistent once the connection is established.
5092 */
5093
5094 if (!params->explicit_connect)
5095 params->conn = hci_conn_get(conn);
5096
5097 return conn;
5098 }
5099
5100 switch (PTR_ERR(conn)) {
5101 case -EBUSY:
5102 /* If hci_connect() returns -EBUSY it means there is already
5103 * an LE connection attempt going on. Since controllers don't
5104 * support more than one connection attempt at the time, we
5105 * don't consider this an error case.
5106 */
5107 break;
5108 default:
5109 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
5110 return NULL;
5111 }
5112
5113 return NULL;
5114}
5115
5116static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
5117 u8 bdaddr_type, bdaddr_t *direct_addr,
5118 u8 direct_addr_type, s8 rssi, u8 *data, u8 len)
5119{
5120 struct discovery_state *d = &hdev->discovery;
5121 struct smp_irk *irk;
5122 struct hci_conn *conn;
5123 bool match;
5124 u32 flags;
5125 u8 *ptr, real_len;
5126
5127 switch (type) {
5128 case LE_ADV_IND:
5129 case LE_ADV_DIRECT_IND:
5130 case LE_ADV_SCAN_IND:
5131 case LE_ADV_NONCONN_IND:
5132 case LE_ADV_SCAN_RSP:
5133 break;
5134 default:
5135 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
5136 "type: 0x%02x", type);
5137 return;
5138 }
5139
5140 /* Find the end of the data in case the report contains padded zero
5141 * bytes at the end causing an invalid length value.
5142 *
5143 * When data is NULL, len is 0 so there is no need for extra ptr
5144 * check as 'ptr < data + 0' is already false in such case.
5145 */
5146 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
5147 if (ptr + 1 + *ptr > data + len)
5148 break;
5149 }
5150
5151 real_len = ptr - data;
5152
5153 /* Adjust for actual length */
5154 if (len != real_len) {
5155 bt_dev_err_ratelimited(hdev, "advertising data len corrected");
5156 len = real_len;
5157 }
5158
5159 /* If the direct address is present, then this report is from
5160 * a LE Direct Advertising Report event. In that case it is
5161 * important to see if the address is matching the local
5162 * controller address.
5163 */
5164 if (direct_addr) {
5165 /* Only resolvable random addresses are valid for these
5166 * kind of reports and others can be ignored.
5167 */
5168 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
5169 return;
5170
5171 /* If the controller is not using resolvable random
5172 * addresses, then this report can be ignored.
5173 */
5174 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
5175 return;
5176
5177 /* If the local IRK of the controller does not match
5178 * with the resolvable random address provided, then
5179 * this report can be ignored.
5180 */
5181 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
5182 return;
5183 }
5184
5185 /* Check if we need to convert to identity address */
5186 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
5187 if (irk) {
5188 bdaddr = &irk->bdaddr;
5189 bdaddr_type = irk->addr_type;
5190 }
5191
5192 /* Check if we have been requested to connect to this device.
5193 *
5194 * direct_addr is set only for directed advertising reports (it is NULL
5195 * for advertising reports) and is already verified to be RPA above.
5196 */
5197 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, type,
5198 direct_addr);
5199 if (conn && type == LE_ADV_IND) {
5200 /* Store report for later inclusion by
5201 * mgmt_device_connected
5202 */
5203 memcpy(conn->le_adv_data, data, len);
5204 conn->le_adv_data_len = len;
5205 }
5206
5207 /* Passive scanning shouldn't trigger any device found events,
5208 * except for devices marked as CONN_REPORT for which we do send
5209 * device found events.
5210 */
5211 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
5212 if (type == LE_ADV_DIRECT_IND)
5213 return;
5214
5215 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
5216 bdaddr, bdaddr_type))
5217 return;
5218
5219 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
5220 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
5221 else
5222 flags = 0;
5223 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
5224 rssi, flags, data, len, NULL, 0);
5225 return;
5226 }
5227
5228 /* When receiving non-connectable or scannable undirected
5229 * advertising reports, this means that the remote device is
5230 * not connectable and then clearly indicate this in the
5231 * device found event.
5232 *
5233 * When receiving a scan response, then there is no way to
5234 * know if the remote device is connectable or not. However
5235 * since scan responses are merged with a previously seen
5236 * advertising report, the flags field from that report
5237 * will be used.
5238 *
5239 * In the really unlikely case that a controller get confused
5240 * and just sends a scan response event, then it is marked as
5241 * not connectable as well.
5242 */
5243 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND ||
5244 type == LE_ADV_SCAN_RSP)
5245 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
5246 else
5247 flags = 0;
5248
5249 /* If there's nothing pending either store the data from this
5250 * event or send an immediate device found event if the data
5251 * should not be stored for later.
5252 */
5253 if (!has_pending_adv_report(hdev)) {
5254 /* If the report will trigger a SCAN_REQ store it for
5255 * later merging.
5256 */
5257 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
5258 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
5259 rssi, flags, data, len);
5260 return;
5261 }
5262
5263 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
5264 rssi, flags, data, len, NULL, 0);
5265 return;
5266 }
5267
5268 /* Check if the pending report is for the same device as the new one */
5269 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
5270 bdaddr_type == d->last_adv_addr_type);
5271
5272 /* If the pending data doesn't match this report or this isn't a
5273 * scan response (e.g. we got a duplicate ADV_IND) then force
5274 * sending of the pending data.
5275 */
5276 if (type != LE_ADV_SCAN_RSP || !match) {
5277 /* Send out whatever is in the cache, but skip duplicates */
5278 if (!match)
5279 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
5280 d->last_adv_addr_type, NULL,
5281 d->last_adv_rssi, d->last_adv_flags,
5282 d->last_adv_data,
5283 d->last_adv_data_len, NULL, 0);
5284
5285 /* If the new report will trigger a SCAN_REQ store it for
5286 * later merging.
5287 */
5288 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
5289 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
5290 rssi, flags, data, len);
5291 return;
5292 }
5293
5294 /* The advertising reports cannot be merged, so clear
5295 * the pending report and send out a device found event.
5296 */
5297 clear_pending_adv_report(hdev);
5298 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
5299 rssi, flags, data, len, NULL, 0);
5300 return;
5301 }
5302
5303 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
5304 * the new event is a SCAN_RSP. We can therefore proceed with
5305 * sending a merged device found event.
5306 */
5307 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
5308 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
5309 d->last_adv_data, d->last_adv_data_len, data, len);
5310 clear_pending_adv_report(hdev);
5311}
5312
5313static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
5314{
5315 u8 num_reports = skb->data[0];
5316 void *ptr = &skb->data[1];
5317
5318 hci_dev_lock(hdev);
5319
5320 while (num_reports--) {
5321 struct hci_ev_le_advertising_info *ev = ptr;
5322 s8 rssi;
5323
5324 if (ev->length <= HCI_MAX_AD_LENGTH) {
5325 rssi = ev->data[ev->length];
5326 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
5327 ev->bdaddr_type, NULL, 0, rssi,
5328 ev->data, ev->length);
5329 } else {
5330 bt_dev_err(hdev, "Dropping invalid advertising data");
5331 }
5332
5333 ptr += sizeof(*ev) + ev->length + 1;
5334 }
5335
5336 hci_dev_unlock(hdev);
5337}
5338
5339static u8 ext_evt_type_to_legacy(u16 evt_type)
5340{
5341 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
5342 switch (evt_type) {
5343 case LE_LEGACY_ADV_IND:
5344 return LE_ADV_IND;
5345 case LE_LEGACY_ADV_DIRECT_IND:
5346 return LE_ADV_DIRECT_IND;
5347 case LE_LEGACY_ADV_SCAN_IND:
5348 return LE_ADV_SCAN_IND;
5349 case LE_LEGACY_NONCONN_IND:
5350 return LE_ADV_NONCONN_IND;
5351 case LE_LEGACY_SCAN_RSP_ADV:
5352 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
5353 return LE_ADV_SCAN_RSP;
5354 }
5355
5356 BT_ERR_RATELIMITED("Unknown advertising packet type: 0x%02x",
5357 evt_type);
5358
5359 return LE_ADV_INVALID;
5360 }
5361
5362 if (evt_type & LE_EXT_ADV_CONN_IND) {
5363 if (evt_type & LE_EXT_ADV_DIRECT_IND)
5364 return LE_ADV_DIRECT_IND;
5365
5366 return LE_ADV_IND;
5367 }
5368
5369 if (evt_type & LE_EXT_ADV_SCAN_RSP)
5370 return LE_ADV_SCAN_RSP;
5371
5372 if (evt_type & LE_EXT_ADV_SCAN_IND)
5373 return LE_ADV_SCAN_IND;
5374
5375 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
5376 evt_type & LE_EXT_ADV_DIRECT_IND)
5377 return LE_ADV_NONCONN_IND;
5378
5379 BT_ERR_RATELIMITED("Unknown advertising packet type: 0x%02x",
5380 evt_type);
5381
5382 return LE_ADV_INVALID;
5383}
5384
5385static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
5386{
5387 u8 num_reports = skb->data[0];
5388 void *ptr = &skb->data[1];
5389
5390 hci_dev_lock(hdev);
5391
5392 while (num_reports--) {
5393 struct hci_ev_le_ext_adv_report *ev = ptr;
5394 u8 legacy_evt_type;
5395 u16 evt_type;
5396
5397 evt_type = __le16_to_cpu(ev->evt_type);
5398 legacy_evt_type = ext_evt_type_to_legacy(evt_type);
5399 if (legacy_evt_type != LE_ADV_INVALID) {
5400 process_adv_report(hdev, legacy_evt_type, &ev->bdaddr,
5401 ev->bdaddr_type, NULL, 0, ev->rssi,
5402 ev->data, ev->length);
5403 }
5404
5405 ptr += sizeof(*ev) + ev->length + 1;
5406 }
5407
5408 hci_dev_unlock(hdev);
5409}
5410
5411static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev,
5412 struct sk_buff *skb)
5413{
5414 struct hci_ev_le_remote_feat_complete *ev = (void *)skb->data;
5415 struct hci_conn *conn;
5416
5417 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
5418
5419 hci_dev_lock(hdev);
5420
5421 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5422 if (conn) {
5423 if (!ev->status)
5424 memcpy(conn->features[0], ev->features, 8);
5425
5426 if (conn->state == BT_CONFIG) {
5427 __u8 status;
5428
5429 /* If the local controller supports slave-initiated
5430 * features exchange, but the remote controller does
5431 * not, then it is possible that the error code 0x1a
5432 * for unsupported remote feature gets returned.
5433 *
5434 * In this specific case, allow the connection to
5435 * transition into connected state and mark it as
5436 * successful.
5437 */
5438 if ((hdev->le_features[0] & HCI_LE_SLAVE_FEATURES) &&
5439 !conn->out && ev->status == 0x1a)
5440 status = 0x00;
5441 else
5442 status = ev->status;
5443
5444 conn->state = BT_CONNECTED;
5445 hci_connect_cfm(conn, status);
5446 hci_conn_drop(conn);
5447 }
5448 }
5449
5450 hci_dev_unlock(hdev);
5451}
5452
5453static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
5454{
5455 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
5456 struct hci_cp_le_ltk_reply cp;
5457 struct hci_cp_le_ltk_neg_reply neg;
5458 struct hci_conn *conn;
5459 struct smp_ltk *ltk;
5460
5461 BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle));
5462
5463 hci_dev_lock(hdev);
5464
5465 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5466 if (conn == NULL)
5467 goto not_found;
5468
5469 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
5470 if (!ltk)
5471 goto not_found;
5472
5473 if (smp_ltk_is_sc(ltk)) {
5474 /* With SC both EDiv and Rand are set to zero */
5475 if (ev->ediv || ev->rand)
5476 goto not_found;
5477 } else {
5478 /* For non-SC keys check that EDiv and Rand match */
5479 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
5480 goto not_found;
5481 }
5482
5483 memcpy(cp.ltk, ltk->val, ltk->enc_size);
5484 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
5485 cp.handle = cpu_to_le16(conn->handle);
5486
5487 conn->pending_sec_level = smp_ltk_sec_level(ltk);
5488
5489 conn->enc_key_size = ltk->enc_size;
5490
5491 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
5492
5493 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
5494 * temporary key used to encrypt a connection following
5495 * pairing. It is used during the Encrypted Session Setup to
5496 * distribute the keys. Later, security can be re-established
5497 * using a distributed LTK.
5498 */
5499 if (ltk->type == SMP_STK) {
5500 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
5501 list_del_rcu(&ltk->list);
5502 kfree_rcu(ltk, rcu);
5503 } else {
5504 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
5505 }
5506
5507 hci_dev_unlock(hdev);
5508
5509 return;
5510
5511not_found:
5512 neg.handle = ev->handle;
5513 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
5514 hci_dev_unlock(hdev);
5515}
5516
5517static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
5518 u8 reason)
5519{
5520 struct hci_cp_le_conn_param_req_neg_reply cp;
5521
5522 cp.handle = cpu_to_le16(handle);
5523 cp.reason = reason;
5524
5525 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
5526 &cp);
5527}
5528
5529static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
5530 struct sk_buff *skb)
5531{
5532 struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data;
5533 struct hci_cp_le_conn_param_req_reply cp;
5534 struct hci_conn *hcon;
5535 u16 handle, min, max, latency, timeout;
5536
5537 handle = le16_to_cpu(ev->handle);
5538 min = le16_to_cpu(ev->interval_min);
5539 max = le16_to_cpu(ev->interval_max);
5540 latency = le16_to_cpu(ev->latency);
5541 timeout = le16_to_cpu(ev->timeout);
5542
5543 hcon = hci_conn_hash_lookup_handle(hdev, handle);
5544 if (!hcon || hcon->state != BT_CONNECTED)
5545 return send_conn_param_neg_reply(hdev, handle,
5546 HCI_ERROR_UNKNOWN_CONN_ID);
5547
5548 if (hci_check_conn_params(min, max, latency, timeout))
5549 return send_conn_param_neg_reply(hdev, handle,
5550 HCI_ERROR_INVALID_LL_PARAMS);
5551
5552 if (hcon->role == HCI_ROLE_MASTER) {
5553 struct hci_conn_params *params;
5554 u8 store_hint;
5555
5556 hci_dev_lock(hdev);
5557
5558 params = hci_conn_params_lookup(hdev, &hcon->dst,
5559 hcon->dst_type);
5560 if (params) {
5561 params->conn_min_interval = min;
5562 params->conn_max_interval = max;
5563 params->conn_latency = latency;
5564 params->supervision_timeout = timeout;
5565 store_hint = 0x01;
5566 } else{
5567 store_hint = 0x00;
5568 }
5569
5570 hci_dev_unlock(hdev);
5571
5572 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
5573 store_hint, min, max, latency, timeout);
5574 }
5575
5576 cp.handle = ev->handle;
5577 cp.interval_min = ev->interval_min;
5578 cp.interval_max = ev->interval_max;
5579 cp.latency = ev->latency;
5580 cp.timeout = ev->timeout;
5581 cp.min_ce_len = 0;
5582 cp.max_ce_len = 0;
5583
5584 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
5585}
5586
5587static void hci_le_direct_adv_report_evt(struct hci_dev *hdev,
5588 struct sk_buff *skb)
5589{
5590 u8 num_reports = skb->data[0];
5591 void *ptr = &skb->data[1];
5592
5593 hci_dev_lock(hdev);
5594
5595 while (num_reports--) {
5596 struct hci_ev_le_direct_adv_info *ev = ptr;
5597
5598 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
5599 ev->bdaddr_type, &ev->direct_addr,
5600 ev->direct_addr_type, ev->rssi, NULL, 0);
5601
5602 ptr += sizeof(*ev);
5603 }
5604
5605 hci_dev_unlock(hdev);
5606}
5607
5608static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
5609{
5610 struct hci_ev_le_meta *le_ev = (void *) skb->data;
5611
5612 skb_pull(skb, sizeof(*le_ev));
5613
5614 switch (le_ev->subevent) {
5615 case HCI_EV_LE_CONN_COMPLETE:
5616 hci_le_conn_complete_evt(hdev, skb);
5617 break;
5618
5619 case HCI_EV_LE_CONN_UPDATE_COMPLETE:
5620 hci_le_conn_update_complete_evt(hdev, skb);
5621 break;
5622
5623 case HCI_EV_LE_ADVERTISING_REPORT:
5624 hci_le_adv_report_evt(hdev, skb);
5625 break;
5626
5627 case HCI_EV_LE_REMOTE_FEAT_COMPLETE:
5628 hci_le_remote_feat_complete_evt(hdev, skb);
5629 break;
5630
5631 case HCI_EV_LE_LTK_REQ:
5632 hci_le_ltk_request_evt(hdev, skb);
5633 break;
5634
5635 case HCI_EV_LE_REMOTE_CONN_PARAM_REQ:
5636 hci_le_remote_conn_param_req_evt(hdev, skb);
5637 break;
5638
5639 case HCI_EV_LE_DIRECT_ADV_REPORT:
5640 hci_le_direct_adv_report_evt(hdev, skb);
5641 break;
5642
5643 case HCI_EV_LE_EXT_ADV_REPORT:
5644 hci_le_ext_adv_report_evt(hdev, skb);
5645 break;
5646
5647 case HCI_EV_LE_ENHANCED_CONN_COMPLETE:
5648 hci_le_enh_conn_complete_evt(hdev, skb);
5649 break;
5650
5651 case HCI_EV_LE_EXT_ADV_SET_TERM:
5652 hci_le_ext_adv_term_evt(hdev, skb);
5653 break;
5654
5655 default:
5656 break;
5657 }
5658}
5659
5660static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
5661 u8 event, struct sk_buff *skb)
5662{
5663 struct hci_ev_cmd_complete *ev;
5664 struct hci_event_hdr *hdr;
5665
5666 if (!skb)
5667 return false;
5668
5669 if (skb->len < sizeof(*hdr)) {
5670 bt_dev_err(hdev, "too short HCI event");
5671 return false;
5672 }
5673
5674 hdr = (void *) skb->data;
5675 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5676
5677 if (event) {
5678 if (hdr->evt != event)
5679 return false;
5680 return true;
5681 }
5682
5683 /* Check if request ended in Command Status - no way to retreive
5684 * any extra parameters in this case.
5685 */
5686 if (hdr->evt == HCI_EV_CMD_STATUS)
5687 return false;
5688
5689 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
5690 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
5691 hdr->evt);
5692 return false;
5693 }
5694
5695 if (skb->len < sizeof(*ev)) {
5696 bt_dev_err(hdev, "too short cmd_complete event");
5697 return false;
5698 }
5699
5700 ev = (void *) skb->data;
5701 skb_pull(skb, sizeof(*ev));
5702
5703 if (opcode != __le16_to_cpu(ev->opcode)) {
5704 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
5705 __le16_to_cpu(ev->opcode));
5706 return false;
5707 }
5708
5709 return true;
5710}
5711
5712void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
5713{
5714 struct hci_event_hdr *hdr = (void *) skb->data;
5715 hci_req_complete_t req_complete = NULL;
5716 hci_req_complete_skb_t req_complete_skb = NULL;
5717 struct sk_buff *orig_skb = NULL;
5718 u8 status = 0, event = hdr->evt, req_evt = 0;
5719 u16 opcode = HCI_OP_NOP;
5720
5721 if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->hci.req_event == event) {
5722 struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
5723 opcode = __le16_to_cpu(cmd_hdr->opcode);
5724 hci_req_cmd_complete(hdev, opcode, status, &req_complete,
5725 &req_complete_skb);
5726 req_evt = event;
5727 }
5728
5729 /* If it looks like we might end up having to call
5730 * req_complete_skb, store a pristine copy of the skb since the
5731 * various handlers may modify the original one through
5732 * skb_pull() calls, etc.
5733 */
5734 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
5735 event == HCI_EV_CMD_COMPLETE)
5736 orig_skb = skb_clone(skb, GFP_KERNEL);
5737
5738 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5739
5740 switch (event) {
5741 case HCI_EV_INQUIRY_COMPLETE:
5742 hci_inquiry_complete_evt(hdev, skb);
5743 break;
5744
5745 case HCI_EV_INQUIRY_RESULT:
5746 hci_inquiry_result_evt(hdev, skb);
5747 break;
5748
5749 case HCI_EV_CONN_COMPLETE:
5750 hci_conn_complete_evt(hdev, skb);
5751 break;
5752
5753 case HCI_EV_CONN_REQUEST:
5754 hci_conn_request_evt(hdev, skb);
5755 break;
5756
5757 case HCI_EV_DISCONN_COMPLETE:
5758 hci_disconn_complete_evt(hdev, skb);
5759 break;
5760
5761 case HCI_EV_AUTH_COMPLETE:
5762 hci_auth_complete_evt(hdev, skb);
5763 break;
5764
5765 case HCI_EV_REMOTE_NAME:
5766 hci_remote_name_evt(hdev, skb);
5767 break;
5768
5769 case HCI_EV_ENCRYPT_CHANGE:
5770 hci_encrypt_change_evt(hdev, skb);
5771 break;
5772
5773 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
5774 hci_change_link_key_complete_evt(hdev, skb);
5775 break;
5776
5777 case HCI_EV_REMOTE_FEATURES:
5778 hci_remote_features_evt(hdev, skb);
5779 break;
5780
5781 case HCI_EV_CMD_COMPLETE:
5782 hci_cmd_complete_evt(hdev, skb, &opcode, &status,
5783 &req_complete, &req_complete_skb);
5784 break;
5785
5786 case HCI_EV_CMD_STATUS:
5787 hci_cmd_status_evt(hdev, skb, &opcode, &status, &req_complete,
5788 &req_complete_skb);
5789 break;
5790
5791 case HCI_EV_HARDWARE_ERROR:
5792 hci_hardware_error_evt(hdev, skb);
5793 break;
5794
5795 case HCI_EV_ROLE_CHANGE:
5796 hci_role_change_evt(hdev, skb);
5797 break;
5798
5799 case HCI_EV_NUM_COMP_PKTS:
5800 hci_num_comp_pkts_evt(hdev, skb);
5801 break;
5802
5803 case HCI_EV_MODE_CHANGE:
5804 hci_mode_change_evt(hdev, skb);
5805 break;
5806
5807 case HCI_EV_PIN_CODE_REQ:
5808 hci_pin_code_request_evt(hdev, skb);
5809 break;
5810
5811 case HCI_EV_LINK_KEY_REQ:
5812 hci_link_key_request_evt(hdev, skb);
5813 break;
5814
5815 case HCI_EV_LINK_KEY_NOTIFY:
5816 hci_link_key_notify_evt(hdev, skb);
5817 break;
5818
5819 case HCI_EV_CLOCK_OFFSET:
5820 hci_clock_offset_evt(hdev, skb);
5821 break;
5822
5823 case HCI_EV_PKT_TYPE_CHANGE:
5824 hci_pkt_type_change_evt(hdev, skb);
5825 break;
5826
5827 case HCI_EV_PSCAN_REP_MODE:
5828 hci_pscan_rep_mode_evt(hdev, skb);
5829 break;
5830
5831 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
5832 hci_inquiry_result_with_rssi_evt(hdev, skb);
5833 break;
5834
5835 case HCI_EV_REMOTE_EXT_FEATURES:
5836 hci_remote_ext_features_evt(hdev, skb);
5837 break;
5838
5839 case HCI_EV_SYNC_CONN_COMPLETE:
5840 hci_sync_conn_complete_evt(hdev, skb);
5841 break;
5842
5843 case HCI_EV_EXTENDED_INQUIRY_RESULT:
5844 hci_extended_inquiry_result_evt(hdev, skb);
5845 break;
5846
5847 case HCI_EV_KEY_REFRESH_COMPLETE:
5848 hci_key_refresh_complete_evt(hdev, skb);
5849 break;
5850
5851 case HCI_EV_IO_CAPA_REQUEST:
5852 hci_io_capa_request_evt(hdev, skb);
5853 break;
5854
5855 case HCI_EV_IO_CAPA_REPLY:
5856 hci_io_capa_reply_evt(hdev, skb);
5857 break;
5858
5859 case HCI_EV_USER_CONFIRM_REQUEST:
5860 hci_user_confirm_request_evt(hdev, skb);
5861 break;
5862
5863 case HCI_EV_USER_PASSKEY_REQUEST:
5864 hci_user_passkey_request_evt(hdev, skb);
5865 break;
5866
5867 case HCI_EV_USER_PASSKEY_NOTIFY:
5868 hci_user_passkey_notify_evt(hdev, skb);
5869 break;
5870
5871 case HCI_EV_KEYPRESS_NOTIFY:
5872 hci_keypress_notify_evt(hdev, skb);
5873 break;
5874
5875 case HCI_EV_SIMPLE_PAIR_COMPLETE:
5876 hci_simple_pair_complete_evt(hdev, skb);
5877 break;
5878
5879 case HCI_EV_REMOTE_HOST_FEATURES:
5880 hci_remote_host_features_evt(hdev, skb);
5881 break;
5882
5883 case HCI_EV_LE_META:
5884 hci_le_meta_evt(hdev, skb);
5885 break;
5886
5887 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
5888 hci_remote_oob_data_request_evt(hdev, skb);
5889 break;
5890
5891#if IS_ENABLED(CONFIG_BT_HS)
5892 case HCI_EV_CHANNEL_SELECTED:
5893 hci_chan_selected_evt(hdev, skb);
5894 break;
5895
5896 case HCI_EV_PHY_LINK_COMPLETE:
5897 hci_phy_link_complete_evt(hdev, skb);
5898 break;
5899
5900 case HCI_EV_LOGICAL_LINK_COMPLETE:
5901 hci_loglink_complete_evt(hdev, skb);
5902 break;
5903
5904 case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
5905 hci_disconn_loglink_complete_evt(hdev, skb);
5906 break;
5907
5908 case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
5909 hci_disconn_phylink_complete_evt(hdev, skb);
5910 break;
5911#endif
5912
5913 case HCI_EV_NUM_COMP_BLOCKS:
5914 hci_num_comp_blocks_evt(hdev, skb);
5915 break;
5916
5917 default:
5918 BT_DBG("%s event 0x%2.2x", hdev->name, event);
5919 break;
5920 }
5921
5922 if (req_complete) {
5923 req_complete(hdev, status, opcode);
5924 } else if (req_complete_skb) {
5925 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
5926 kfree_skb(orig_skb);
5927 orig_skb = NULL;
5928 }
5929 req_complete_skb(hdev, status, opcode, orig_skb);
5930 }
5931
5932 kfree_skb(orig_skb);
5933 kfree_skb(skb);
5934 hdev->stat.evt_rx++;
5935}