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Merge tag 'xfs-for-linus-3.17-rc1' of git://oss.sgi.com/xfs/xfs
[deliverable/linux.git] / net / bluetooth / hci_event.c
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 "a2mp.h"
34 #include "amp.h"
35 #include "smp.h"
36
37 /* Handle HCI Event packets */
38
39 static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
40 {
41 __u8 status = *((__u8 *) skb->data);
42
43 BT_DBG("%s status 0x%2.2x", hdev->name, status);
44
45 if (status)
46 return;
47
48 clear_bit(HCI_INQUIRY, &hdev->flags);
49 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
50 wake_up_bit(&hdev->flags, HCI_INQUIRY);
51
52 hci_dev_lock(hdev);
53 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
54 hci_dev_unlock(hdev);
55
56 hci_conn_check_pending(hdev);
57 }
58
59 static void hci_cc_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
60 {
61 __u8 status = *((__u8 *) skb->data);
62
63 BT_DBG("%s status 0x%2.2x", hdev->name, status);
64
65 if (status)
66 return;
67
68 set_bit(HCI_PERIODIC_INQ, &hdev->dev_flags);
69 }
70
71 static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
72 {
73 __u8 status = *((__u8 *) skb->data);
74
75 BT_DBG("%s status 0x%2.2x", hdev->name, status);
76
77 if (status)
78 return;
79
80 clear_bit(HCI_PERIODIC_INQ, &hdev->dev_flags);
81
82 hci_conn_check_pending(hdev);
83 }
84
85 static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev,
86 struct sk_buff *skb)
87 {
88 BT_DBG("%s", hdev->name);
89 }
90
91 static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
92 {
93 struct hci_rp_role_discovery *rp = (void *) skb->data;
94 struct hci_conn *conn;
95
96 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
97
98 if (rp->status)
99 return;
100
101 hci_dev_lock(hdev);
102
103 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
104 if (conn)
105 conn->role = rp->role;
106
107 hci_dev_unlock(hdev);
108 }
109
110 static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
111 {
112 struct hci_rp_read_link_policy *rp = (void *) skb->data;
113 struct hci_conn *conn;
114
115 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
116
117 if (rp->status)
118 return;
119
120 hci_dev_lock(hdev);
121
122 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
123 if (conn)
124 conn->link_policy = __le16_to_cpu(rp->policy);
125
126 hci_dev_unlock(hdev);
127 }
128
129 static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
130 {
131 struct hci_rp_write_link_policy *rp = (void *) skb->data;
132 struct hci_conn *conn;
133 void *sent;
134
135 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
136
137 if (rp->status)
138 return;
139
140 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
141 if (!sent)
142 return;
143
144 hci_dev_lock(hdev);
145
146 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
147 if (conn)
148 conn->link_policy = get_unaligned_le16(sent + 2);
149
150 hci_dev_unlock(hdev);
151 }
152
153 static void hci_cc_read_def_link_policy(struct hci_dev *hdev,
154 struct sk_buff *skb)
155 {
156 struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
157
158 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
159
160 if (rp->status)
161 return;
162
163 hdev->link_policy = __le16_to_cpu(rp->policy);
164 }
165
166 static void hci_cc_write_def_link_policy(struct hci_dev *hdev,
167 struct sk_buff *skb)
168 {
169 __u8 status = *((__u8 *) skb->data);
170 void *sent;
171
172 BT_DBG("%s status 0x%2.2x", hdev->name, status);
173
174 if (status)
175 return;
176
177 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
178 if (!sent)
179 return;
180
181 hdev->link_policy = get_unaligned_le16(sent);
182 }
183
184 static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
185 {
186 __u8 status = *((__u8 *) skb->data);
187
188 BT_DBG("%s status 0x%2.2x", hdev->name, status);
189
190 clear_bit(HCI_RESET, &hdev->flags);
191
192 /* Reset all non-persistent flags */
193 hdev->dev_flags &= ~HCI_PERSISTENT_MASK;
194
195 hdev->discovery.state = DISCOVERY_STOPPED;
196 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
197 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
198
199 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
200 hdev->adv_data_len = 0;
201
202 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
203 hdev->scan_rsp_data_len = 0;
204
205 hdev->le_scan_type = LE_SCAN_PASSIVE;
206
207 hdev->ssp_debug_mode = 0;
208 }
209
210 static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
211 {
212 __u8 status = *((__u8 *) skb->data);
213 void *sent;
214
215 BT_DBG("%s status 0x%2.2x", hdev->name, status);
216
217 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
218 if (!sent)
219 return;
220
221 hci_dev_lock(hdev);
222
223 if (test_bit(HCI_MGMT, &hdev->dev_flags))
224 mgmt_set_local_name_complete(hdev, sent, status);
225 else if (!status)
226 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
227
228 hci_dev_unlock(hdev);
229 }
230
231 static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
232 {
233 struct hci_rp_read_local_name *rp = (void *) skb->data;
234
235 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
236
237 if (rp->status)
238 return;
239
240 if (test_bit(HCI_SETUP, &hdev->dev_flags))
241 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
242 }
243
244 static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
245 {
246 __u8 status = *((__u8 *) skb->data);
247 void *sent;
248
249 BT_DBG("%s status 0x%2.2x", hdev->name, status);
250
251 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
252 if (!sent)
253 return;
254
255 if (!status) {
256 __u8 param = *((__u8 *) sent);
257
258 if (param == AUTH_ENABLED)
259 set_bit(HCI_AUTH, &hdev->flags);
260 else
261 clear_bit(HCI_AUTH, &hdev->flags);
262 }
263
264 if (test_bit(HCI_MGMT, &hdev->dev_flags))
265 mgmt_auth_enable_complete(hdev, status);
266 }
267
268 static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
269 {
270 __u8 status = *((__u8 *) skb->data);
271 __u8 param;
272 void *sent;
273
274 BT_DBG("%s status 0x%2.2x", hdev->name, status);
275
276 if (status)
277 return;
278
279 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
280 if (!sent)
281 return;
282
283 param = *((__u8 *) sent);
284
285 if (param)
286 set_bit(HCI_ENCRYPT, &hdev->flags);
287 else
288 clear_bit(HCI_ENCRYPT, &hdev->flags);
289 }
290
291 static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
292 {
293 __u8 status = *((__u8 *) skb->data);
294 __u8 param;
295 void *sent;
296
297 BT_DBG("%s status 0x%2.2x", hdev->name, status);
298
299 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
300 if (!sent)
301 return;
302
303 param = *((__u8 *) sent);
304
305 hci_dev_lock(hdev);
306
307 if (status) {
308 hdev->discov_timeout = 0;
309 goto done;
310 }
311
312 if (param & SCAN_INQUIRY)
313 set_bit(HCI_ISCAN, &hdev->flags);
314 else
315 clear_bit(HCI_ISCAN, &hdev->flags);
316
317 if (param & SCAN_PAGE)
318 set_bit(HCI_PSCAN, &hdev->flags);
319 else
320 clear_bit(HCI_PSCAN, &hdev->flags);
321
322 done:
323 hci_dev_unlock(hdev);
324 }
325
326 static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
327 {
328 struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
329
330 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
331
332 if (rp->status)
333 return;
334
335 memcpy(hdev->dev_class, rp->dev_class, 3);
336
337 BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
338 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
339 }
340
341 static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
342 {
343 __u8 status = *((__u8 *) skb->data);
344 void *sent;
345
346 BT_DBG("%s status 0x%2.2x", hdev->name, status);
347
348 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
349 if (!sent)
350 return;
351
352 hci_dev_lock(hdev);
353
354 if (status == 0)
355 memcpy(hdev->dev_class, sent, 3);
356
357 if (test_bit(HCI_MGMT, &hdev->dev_flags))
358 mgmt_set_class_of_dev_complete(hdev, sent, status);
359
360 hci_dev_unlock(hdev);
361 }
362
363 static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
364 {
365 struct hci_rp_read_voice_setting *rp = (void *) skb->data;
366 __u16 setting;
367
368 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
369
370 if (rp->status)
371 return;
372
373 setting = __le16_to_cpu(rp->voice_setting);
374
375 if (hdev->voice_setting == setting)
376 return;
377
378 hdev->voice_setting = setting;
379
380 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
381
382 if (hdev->notify)
383 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
384 }
385
386 static void hci_cc_write_voice_setting(struct hci_dev *hdev,
387 struct sk_buff *skb)
388 {
389 __u8 status = *((__u8 *) skb->data);
390 __u16 setting;
391 void *sent;
392
393 BT_DBG("%s status 0x%2.2x", hdev->name, status);
394
395 if (status)
396 return;
397
398 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
399 if (!sent)
400 return;
401
402 setting = get_unaligned_le16(sent);
403
404 if (hdev->voice_setting == setting)
405 return;
406
407 hdev->voice_setting = setting;
408
409 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
410
411 if (hdev->notify)
412 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
413 }
414
415 static void hci_cc_read_num_supported_iac(struct hci_dev *hdev,
416 struct sk_buff *skb)
417 {
418 struct hci_rp_read_num_supported_iac *rp = (void *) skb->data;
419
420 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
421
422 if (rp->status)
423 return;
424
425 hdev->num_iac = rp->num_iac;
426
427 BT_DBG("%s num iac %d", hdev->name, hdev->num_iac);
428 }
429
430 static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
431 {
432 __u8 status = *((__u8 *) skb->data);
433 struct hci_cp_write_ssp_mode *sent;
434
435 BT_DBG("%s status 0x%2.2x", hdev->name, status);
436
437 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
438 if (!sent)
439 return;
440
441 if (!status) {
442 if (sent->mode)
443 hdev->features[1][0] |= LMP_HOST_SSP;
444 else
445 hdev->features[1][0] &= ~LMP_HOST_SSP;
446 }
447
448 if (test_bit(HCI_MGMT, &hdev->dev_flags))
449 mgmt_ssp_enable_complete(hdev, sent->mode, status);
450 else if (!status) {
451 if (sent->mode)
452 set_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
453 else
454 clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
455 }
456 }
457
458 static void hci_cc_write_sc_support(struct hci_dev *hdev, struct sk_buff *skb)
459 {
460 u8 status = *((u8 *) skb->data);
461 struct hci_cp_write_sc_support *sent;
462
463 BT_DBG("%s status 0x%2.2x", hdev->name, status);
464
465 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
466 if (!sent)
467 return;
468
469 if (!status) {
470 if (sent->support)
471 hdev->features[1][0] |= LMP_HOST_SC;
472 else
473 hdev->features[1][0] &= ~LMP_HOST_SC;
474 }
475
476 if (test_bit(HCI_MGMT, &hdev->dev_flags))
477 mgmt_sc_enable_complete(hdev, sent->support, status);
478 else if (!status) {
479 if (sent->support)
480 set_bit(HCI_SC_ENABLED, &hdev->dev_flags);
481 else
482 clear_bit(HCI_SC_ENABLED, &hdev->dev_flags);
483 }
484 }
485
486 static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
487 {
488 struct hci_rp_read_local_version *rp = (void *) skb->data;
489
490 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
491
492 if (rp->status)
493 return;
494
495 if (test_bit(HCI_SETUP, &hdev->dev_flags)) {
496 hdev->hci_ver = rp->hci_ver;
497 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
498 hdev->lmp_ver = rp->lmp_ver;
499 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
500 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
501 }
502 }
503
504 static void hci_cc_read_local_commands(struct hci_dev *hdev,
505 struct sk_buff *skb)
506 {
507 struct hci_rp_read_local_commands *rp = (void *) skb->data;
508
509 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
510
511 if (rp->status)
512 return;
513
514 if (test_bit(HCI_SETUP, &hdev->dev_flags))
515 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
516 }
517
518 static void hci_cc_read_local_features(struct hci_dev *hdev,
519 struct sk_buff *skb)
520 {
521 struct hci_rp_read_local_features *rp = (void *) skb->data;
522
523 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
524
525 if (rp->status)
526 return;
527
528 memcpy(hdev->features, rp->features, 8);
529
530 /* Adjust default settings according to features
531 * supported by device. */
532
533 if (hdev->features[0][0] & LMP_3SLOT)
534 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
535
536 if (hdev->features[0][0] & LMP_5SLOT)
537 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
538
539 if (hdev->features[0][1] & LMP_HV2) {
540 hdev->pkt_type |= (HCI_HV2);
541 hdev->esco_type |= (ESCO_HV2);
542 }
543
544 if (hdev->features[0][1] & LMP_HV3) {
545 hdev->pkt_type |= (HCI_HV3);
546 hdev->esco_type |= (ESCO_HV3);
547 }
548
549 if (lmp_esco_capable(hdev))
550 hdev->esco_type |= (ESCO_EV3);
551
552 if (hdev->features[0][4] & LMP_EV4)
553 hdev->esco_type |= (ESCO_EV4);
554
555 if (hdev->features[0][4] & LMP_EV5)
556 hdev->esco_type |= (ESCO_EV5);
557
558 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
559 hdev->esco_type |= (ESCO_2EV3);
560
561 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
562 hdev->esco_type |= (ESCO_3EV3);
563
564 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
565 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
566 }
567
568 static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
569 struct sk_buff *skb)
570 {
571 struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
572
573 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
574
575 if (rp->status)
576 return;
577
578 if (hdev->max_page < rp->max_page)
579 hdev->max_page = rp->max_page;
580
581 if (rp->page < HCI_MAX_PAGES)
582 memcpy(hdev->features[rp->page], rp->features, 8);
583 }
584
585 static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
586 struct sk_buff *skb)
587 {
588 struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
589
590 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
591
592 if (rp->status)
593 return;
594
595 hdev->flow_ctl_mode = rp->mode;
596 }
597
598 static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
599 {
600 struct hci_rp_read_buffer_size *rp = (void *) skb->data;
601
602 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
603
604 if (rp->status)
605 return;
606
607 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
608 hdev->sco_mtu = rp->sco_mtu;
609 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
610 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
611
612 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
613 hdev->sco_mtu = 64;
614 hdev->sco_pkts = 8;
615 }
616
617 hdev->acl_cnt = hdev->acl_pkts;
618 hdev->sco_cnt = hdev->sco_pkts;
619
620 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
621 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
622 }
623
624 static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
625 {
626 struct hci_rp_read_bd_addr *rp = (void *) skb->data;
627
628 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
629
630 if (rp->status)
631 return;
632
633 if (test_bit(HCI_INIT, &hdev->flags))
634 bacpy(&hdev->bdaddr, &rp->bdaddr);
635
636 if (test_bit(HCI_SETUP, &hdev->dev_flags))
637 bacpy(&hdev->setup_addr, &rp->bdaddr);
638 }
639
640 static void hci_cc_read_page_scan_activity(struct hci_dev *hdev,
641 struct sk_buff *skb)
642 {
643 struct hci_rp_read_page_scan_activity *rp = (void *) skb->data;
644
645 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
646
647 if (rp->status)
648 return;
649
650 if (test_bit(HCI_INIT, &hdev->flags)) {
651 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
652 hdev->page_scan_window = __le16_to_cpu(rp->window);
653 }
654 }
655
656 static void hci_cc_write_page_scan_activity(struct hci_dev *hdev,
657 struct sk_buff *skb)
658 {
659 u8 status = *((u8 *) skb->data);
660 struct hci_cp_write_page_scan_activity *sent;
661
662 BT_DBG("%s status 0x%2.2x", hdev->name, status);
663
664 if (status)
665 return;
666
667 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
668 if (!sent)
669 return;
670
671 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
672 hdev->page_scan_window = __le16_to_cpu(sent->window);
673 }
674
675 static void hci_cc_read_page_scan_type(struct hci_dev *hdev,
676 struct sk_buff *skb)
677 {
678 struct hci_rp_read_page_scan_type *rp = (void *) skb->data;
679
680 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
681
682 if (rp->status)
683 return;
684
685 if (test_bit(HCI_INIT, &hdev->flags))
686 hdev->page_scan_type = rp->type;
687 }
688
689 static void hci_cc_write_page_scan_type(struct hci_dev *hdev,
690 struct sk_buff *skb)
691 {
692 u8 status = *((u8 *) skb->data);
693 u8 *type;
694
695 BT_DBG("%s status 0x%2.2x", hdev->name, status);
696
697 if (status)
698 return;
699
700 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
701 if (type)
702 hdev->page_scan_type = *type;
703 }
704
705 static void hci_cc_read_data_block_size(struct hci_dev *hdev,
706 struct sk_buff *skb)
707 {
708 struct hci_rp_read_data_block_size *rp = (void *) skb->data;
709
710 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
711
712 if (rp->status)
713 return;
714
715 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
716 hdev->block_len = __le16_to_cpu(rp->block_len);
717 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
718
719 hdev->block_cnt = hdev->num_blocks;
720
721 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
722 hdev->block_cnt, hdev->block_len);
723 }
724
725 static void hci_cc_read_clock(struct hci_dev *hdev, struct sk_buff *skb)
726 {
727 struct hci_rp_read_clock *rp = (void *) skb->data;
728 struct hci_cp_read_clock *cp;
729 struct hci_conn *conn;
730
731 BT_DBG("%s", hdev->name);
732
733 if (skb->len < sizeof(*rp))
734 return;
735
736 if (rp->status)
737 return;
738
739 hci_dev_lock(hdev);
740
741 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
742 if (!cp)
743 goto unlock;
744
745 if (cp->which == 0x00) {
746 hdev->clock = le32_to_cpu(rp->clock);
747 goto unlock;
748 }
749
750 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
751 if (conn) {
752 conn->clock = le32_to_cpu(rp->clock);
753 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
754 }
755
756 unlock:
757 hci_dev_unlock(hdev);
758 }
759
760 static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
761 struct sk_buff *skb)
762 {
763 struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
764
765 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
766
767 if (rp->status)
768 goto a2mp_rsp;
769
770 hdev->amp_status = rp->amp_status;
771 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
772 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
773 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
774 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
775 hdev->amp_type = rp->amp_type;
776 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
777 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
778 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
779 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
780
781 a2mp_rsp:
782 a2mp_send_getinfo_rsp(hdev);
783 }
784
785 static void hci_cc_read_local_amp_assoc(struct hci_dev *hdev,
786 struct sk_buff *skb)
787 {
788 struct hci_rp_read_local_amp_assoc *rp = (void *) skb->data;
789 struct amp_assoc *assoc = &hdev->loc_assoc;
790 size_t rem_len, frag_len;
791
792 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
793
794 if (rp->status)
795 goto a2mp_rsp;
796
797 frag_len = skb->len - sizeof(*rp);
798 rem_len = __le16_to_cpu(rp->rem_len);
799
800 if (rem_len > frag_len) {
801 BT_DBG("frag_len %zu rem_len %zu", frag_len, rem_len);
802
803 memcpy(assoc->data + assoc->offset, rp->frag, frag_len);
804 assoc->offset += frag_len;
805
806 /* Read other fragments */
807 amp_read_loc_assoc_frag(hdev, rp->phy_handle);
808
809 return;
810 }
811
812 memcpy(assoc->data + assoc->offset, rp->frag, rem_len);
813 assoc->len = assoc->offset + rem_len;
814 assoc->offset = 0;
815
816 a2mp_rsp:
817 /* Send A2MP Rsp when all fragments are received */
818 a2mp_send_getampassoc_rsp(hdev, rp->status);
819 a2mp_send_create_phy_link_req(hdev, rp->status);
820 }
821
822 static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
823 struct sk_buff *skb)
824 {
825 struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data;
826
827 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
828
829 if (rp->status)
830 return;
831
832 hdev->inq_tx_power = rp->tx_power;
833 }
834
835 static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
836 {
837 struct hci_rp_pin_code_reply *rp = (void *) skb->data;
838 struct hci_cp_pin_code_reply *cp;
839 struct hci_conn *conn;
840
841 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
842
843 hci_dev_lock(hdev);
844
845 if (test_bit(HCI_MGMT, &hdev->dev_flags))
846 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
847
848 if (rp->status)
849 goto unlock;
850
851 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
852 if (!cp)
853 goto unlock;
854
855 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
856 if (conn)
857 conn->pin_length = cp->pin_len;
858
859 unlock:
860 hci_dev_unlock(hdev);
861 }
862
863 static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
864 {
865 struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
866
867 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
868
869 hci_dev_lock(hdev);
870
871 if (test_bit(HCI_MGMT, &hdev->dev_flags))
872 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
873 rp->status);
874
875 hci_dev_unlock(hdev);
876 }
877
878 static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
879 struct sk_buff *skb)
880 {
881 struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
882
883 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
884
885 if (rp->status)
886 return;
887
888 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
889 hdev->le_pkts = rp->le_max_pkt;
890
891 hdev->le_cnt = hdev->le_pkts;
892
893 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
894 }
895
896 static void hci_cc_le_read_local_features(struct hci_dev *hdev,
897 struct sk_buff *skb)
898 {
899 struct hci_rp_le_read_local_features *rp = (void *) skb->data;
900
901 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
902
903 if (rp->status)
904 return;
905
906 memcpy(hdev->le_features, rp->features, 8);
907 }
908
909 static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
910 struct sk_buff *skb)
911 {
912 struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data;
913
914 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
915
916 if (rp->status)
917 return;
918
919 hdev->adv_tx_power = rp->tx_power;
920 }
921
922 static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
923 {
924 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
925
926 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
927
928 hci_dev_lock(hdev);
929
930 if (test_bit(HCI_MGMT, &hdev->dev_flags))
931 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
932 rp->status);
933
934 hci_dev_unlock(hdev);
935 }
936
937 static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
938 struct sk_buff *skb)
939 {
940 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
941
942 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
943
944 hci_dev_lock(hdev);
945
946 if (test_bit(HCI_MGMT, &hdev->dev_flags))
947 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
948 ACL_LINK, 0, rp->status);
949
950 hci_dev_unlock(hdev);
951 }
952
953 static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
954 {
955 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
956
957 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
958
959 hci_dev_lock(hdev);
960
961 if (test_bit(HCI_MGMT, &hdev->dev_flags))
962 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
963 0, rp->status);
964
965 hci_dev_unlock(hdev);
966 }
967
968 static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
969 struct sk_buff *skb)
970 {
971 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
972
973 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
974
975 hci_dev_lock(hdev);
976
977 if (test_bit(HCI_MGMT, &hdev->dev_flags))
978 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
979 ACL_LINK, 0, rp->status);
980
981 hci_dev_unlock(hdev);
982 }
983
984 static void hci_cc_read_local_oob_data(struct hci_dev *hdev,
985 struct sk_buff *skb)
986 {
987 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
988
989 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
990
991 hci_dev_lock(hdev);
992 mgmt_read_local_oob_data_complete(hdev, rp->hash, rp->randomizer,
993 NULL, NULL, rp->status);
994 hci_dev_unlock(hdev);
995 }
996
997 static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
998 struct sk_buff *skb)
999 {
1000 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
1001
1002 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1003
1004 hci_dev_lock(hdev);
1005 mgmt_read_local_oob_data_complete(hdev, rp->hash192, rp->randomizer192,
1006 rp->hash256, rp->randomizer256,
1007 rp->status);
1008 hci_dev_unlock(hdev);
1009 }
1010
1011
1012 static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb)
1013 {
1014 __u8 status = *((__u8 *) skb->data);
1015 bdaddr_t *sent;
1016
1017 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1018
1019 if (status)
1020 return;
1021
1022 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1023 if (!sent)
1024 return;
1025
1026 hci_dev_lock(hdev);
1027
1028 bacpy(&hdev->random_addr, sent);
1029
1030 hci_dev_unlock(hdev);
1031 }
1032
1033 static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
1034 {
1035 __u8 *sent, status = *((__u8 *) skb->data);
1036
1037 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1038
1039 if (status)
1040 return;
1041
1042 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1043 if (!sent)
1044 return;
1045
1046 hci_dev_lock(hdev);
1047
1048 /* If we're doing connection initation as peripheral. Set a
1049 * timeout in case something goes wrong.
1050 */
1051 if (*sent) {
1052 struct hci_conn *conn;
1053
1054 set_bit(HCI_LE_ADV, &hdev->dev_flags);
1055
1056 conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
1057 if (conn)
1058 queue_delayed_work(hdev->workqueue,
1059 &conn->le_conn_timeout,
1060 conn->conn_timeout);
1061 } else {
1062 clear_bit(HCI_LE_ADV, &hdev->dev_flags);
1063 }
1064
1065 hci_dev_unlock(hdev);
1066 }
1067
1068 static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
1069 {
1070 struct hci_cp_le_set_scan_param *cp;
1071 __u8 status = *((__u8 *) skb->data);
1072
1073 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1074
1075 if (status)
1076 return;
1077
1078 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1079 if (!cp)
1080 return;
1081
1082 hci_dev_lock(hdev);
1083
1084 hdev->le_scan_type = cp->type;
1085
1086 hci_dev_unlock(hdev);
1087 }
1088
1089 static bool has_pending_adv_report(struct hci_dev *hdev)
1090 {
1091 struct discovery_state *d = &hdev->discovery;
1092
1093 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1094 }
1095
1096 static void clear_pending_adv_report(struct hci_dev *hdev)
1097 {
1098 struct discovery_state *d = &hdev->discovery;
1099
1100 bacpy(&d->last_adv_addr, BDADDR_ANY);
1101 d->last_adv_data_len = 0;
1102 }
1103
1104 static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1105 u8 bdaddr_type, s8 rssi, u32 flags,
1106 u8 *data, u8 len)
1107 {
1108 struct discovery_state *d = &hdev->discovery;
1109
1110 bacpy(&d->last_adv_addr, bdaddr);
1111 d->last_adv_addr_type = bdaddr_type;
1112 d->last_adv_rssi = rssi;
1113 d->last_adv_flags = flags;
1114 memcpy(d->last_adv_data, data, len);
1115 d->last_adv_data_len = len;
1116 }
1117
1118 static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
1119 struct sk_buff *skb)
1120 {
1121 struct hci_cp_le_set_scan_enable *cp;
1122 __u8 status = *((__u8 *) skb->data);
1123
1124 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1125
1126 if (status)
1127 return;
1128
1129 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1130 if (!cp)
1131 return;
1132
1133 switch (cp->enable) {
1134 case LE_SCAN_ENABLE:
1135 set_bit(HCI_LE_SCAN, &hdev->dev_flags);
1136 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1137 clear_pending_adv_report(hdev);
1138 break;
1139
1140 case LE_SCAN_DISABLE:
1141 /* We do this here instead of when setting DISCOVERY_STOPPED
1142 * since the latter would potentially require waiting for
1143 * inquiry to stop too.
1144 */
1145 if (has_pending_adv_report(hdev)) {
1146 struct discovery_state *d = &hdev->discovery;
1147
1148 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1149 d->last_adv_addr_type, NULL,
1150 d->last_adv_rssi, d->last_adv_flags,
1151 d->last_adv_data,
1152 d->last_adv_data_len, NULL, 0);
1153 }
1154
1155 /* Cancel this timer so that we don't try to disable scanning
1156 * when it's already disabled.
1157 */
1158 cancel_delayed_work(&hdev->le_scan_disable);
1159
1160 clear_bit(HCI_LE_SCAN, &hdev->dev_flags);
1161
1162 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1163 * interrupted scanning due to a connect request. Mark
1164 * therefore discovery as stopped. If this was not
1165 * because of a connect request advertising might have
1166 * been disabled because of active scanning, so
1167 * re-enable it again if necessary.
1168 */
1169 if (test_and_clear_bit(HCI_LE_SCAN_INTERRUPTED,
1170 &hdev->dev_flags))
1171 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1172 else if (!test_bit(HCI_LE_ADV, &hdev->dev_flags) &&
1173 hdev->discovery.state == DISCOVERY_FINDING)
1174 mgmt_reenable_advertising(hdev);
1175
1176 break;
1177
1178 default:
1179 BT_ERR("Used reserved LE_Scan_Enable param %d", cp->enable);
1180 break;
1181 }
1182 }
1183
1184 static void hci_cc_le_read_white_list_size(struct hci_dev *hdev,
1185 struct sk_buff *skb)
1186 {
1187 struct hci_rp_le_read_white_list_size *rp = (void *) skb->data;
1188
1189 BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
1190
1191 if (rp->status)
1192 return;
1193
1194 hdev->le_white_list_size = rp->size;
1195 }
1196
1197 static void hci_cc_le_clear_white_list(struct hci_dev *hdev,
1198 struct sk_buff *skb)
1199 {
1200 __u8 status = *((__u8 *) skb->data);
1201
1202 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1203
1204 if (status)
1205 return;
1206
1207 hci_bdaddr_list_clear(&hdev->le_white_list);
1208 }
1209
1210 static void hci_cc_le_add_to_white_list(struct hci_dev *hdev,
1211 struct sk_buff *skb)
1212 {
1213 struct hci_cp_le_add_to_white_list *sent;
1214 __u8 status = *((__u8 *) skb->data);
1215
1216 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1217
1218 if (status)
1219 return;
1220
1221 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST);
1222 if (!sent)
1223 return;
1224
1225 hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr,
1226 sent->bdaddr_type);
1227 }
1228
1229 static void hci_cc_le_del_from_white_list(struct hci_dev *hdev,
1230 struct sk_buff *skb)
1231 {
1232 struct hci_cp_le_del_from_white_list *sent;
1233 __u8 status = *((__u8 *) skb->data);
1234
1235 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1236
1237 if (status)
1238 return;
1239
1240 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST);
1241 if (!sent)
1242 return;
1243
1244 hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr,
1245 sent->bdaddr_type);
1246 }
1247
1248 static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
1249 struct sk_buff *skb)
1250 {
1251 struct hci_rp_le_read_supported_states *rp = (void *) skb->data;
1252
1253 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1254
1255 if (rp->status)
1256 return;
1257
1258 memcpy(hdev->le_states, rp->le_states, 8);
1259 }
1260
1261 static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
1262 struct sk_buff *skb)
1263 {
1264 struct hci_cp_write_le_host_supported *sent;
1265 __u8 status = *((__u8 *) skb->data);
1266
1267 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1268
1269 if (status)
1270 return;
1271
1272 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
1273 if (!sent)
1274 return;
1275
1276 if (sent->le) {
1277 hdev->features[1][0] |= LMP_HOST_LE;
1278 set_bit(HCI_LE_ENABLED, &hdev->dev_flags);
1279 } else {
1280 hdev->features[1][0] &= ~LMP_HOST_LE;
1281 clear_bit(HCI_LE_ENABLED, &hdev->dev_flags);
1282 clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
1283 }
1284
1285 if (sent->simul)
1286 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
1287 else
1288 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
1289 }
1290
1291 static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
1292 {
1293 struct hci_cp_le_set_adv_param *cp;
1294 u8 status = *((u8 *) skb->data);
1295
1296 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1297
1298 if (status)
1299 return;
1300
1301 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
1302 if (!cp)
1303 return;
1304
1305 hci_dev_lock(hdev);
1306 hdev->adv_addr_type = cp->own_address_type;
1307 hci_dev_unlock(hdev);
1308 }
1309
1310 static void hci_cc_write_remote_amp_assoc(struct hci_dev *hdev,
1311 struct sk_buff *skb)
1312 {
1313 struct hci_rp_write_remote_amp_assoc *rp = (void *) skb->data;
1314
1315 BT_DBG("%s status 0x%2.2x phy_handle 0x%2.2x",
1316 hdev->name, rp->status, rp->phy_handle);
1317
1318 if (rp->status)
1319 return;
1320
1321 amp_write_rem_assoc_continue(hdev, rp->phy_handle);
1322 }
1323
1324 static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
1325 {
1326 struct hci_rp_read_rssi *rp = (void *) skb->data;
1327 struct hci_conn *conn;
1328
1329 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1330
1331 if (rp->status)
1332 return;
1333
1334 hci_dev_lock(hdev);
1335
1336 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1337 if (conn)
1338 conn->rssi = rp->rssi;
1339
1340 hci_dev_unlock(hdev);
1341 }
1342
1343 static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb)
1344 {
1345 struct hci_cp_read_tx_power *sent;
1346 struct hci_rp_read_tx_power *rp = (void *) skb->data;
1347 struct hci_conn *conn;
1348
1349 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1350
1351 if (rp->status)
1352 return;
1353
1354 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
1355 if (!sent)
1356 return;
1357
1358 hci_dev_lock(hdev);
1359
1360 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1361 if (!conn)
1362 goto unlock;
1363
1364 switch (sent->type) {
1365 case 0x00:
1366 conn->tx_power = rp->tx_power;
1367 break;
1368 case 0x01:
1369 conn->max_tx_power = rp->tx_power;
1370 break;
1371 }
1372
1373 unlock:
1374 hci_dev_unlock(hdev);
1375 }
1376
1377 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
1378 {
1379 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1380
1381 if (status) {
1382 hci_conn_check_pending(hdev);
1383 return;
1384 }
1385
1386 set_bit(HCI_INQUIRY, &hdev->flags);
1387 }
1388
1389 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
1390 {
1391 struct hci_cp_create_conn *cp;
1392 struct hci_conn *conn;
1393
1394 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1395
1396 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
1397 if (!cp)
1398 return;
1399
1400 hci_dev_lock(hdev);
1401
1402 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1403
1404 BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn);
1405
1406 if (status) {
1407 if (conn && conn->state == BT_CONNECT) {
1408 if (status != 0x0c || conn->attempt > 2) {
1409 conn->state = BT_CLOSED;
1410 hci_proto_connect_cfm(conn, status);
1411 hci_conn_del(conn);
1412 } else
1413 conn->state = BT_CONNECT2;
1414 }
1415 } else {
1416 if (!conn) {
1417 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
1418 HCI_ROLE_MASTER);
1419 if (!conn)
1420 BT_ERR("No memory for new connection");
1421 }
1422 }
1423
1424 hci_dev_unlock(hdev);
1425 }
1426
1427 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1428 {
1429 struct hci_cp_add_sco *cp;
1430 struct hci_conn *acl, *sco;
1431 __u16 handle;
1432
1433 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1434
1435 if (!status)
1436 return;
1437
1438 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
1439 if (!cp)
1440 return;
1441
1442 handle = __le16_to_cpu(cp->handle);
1443
1444 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
1445
1446 hci_dev_lock(hdev);
1447
1448 acl = hci_conn_hash_lookup_handle(hdev, handle);
1449 if (acl) {
1450 sco = acl->link;
1451 if (sco) {
1452 sco->state = BT_CLOSED;
1453
1454 hci_proto_connect_cfm(sco, status);
1455 hci_conn_del(sco);
1456 }
1457 }
1458
1459 hci_dev_unlock(hdev);
1460 }
1461
1462 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
1463 {
1464 struct hci_cp_auth_requested *cp;
1465 struct hci_conn *conn;
1466
1467 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1468
1469 if (!status)
1470 return;
1471
1472 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
1473 if (!cp)
1474 return;
1475
1476 hci_dev_lock(hdev);
1477
1478 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1479 if (conn) {
1480 if (conn->state == BT_CONFIG) {
1481 hci_proto_connect_cfm(conn, status);
1482 hci_conn_drop(conn);
1483 }
1484 }
1485
1486 hci_dev_unlock(hdev);
1487 }
1488
1489 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
1490 {
1491 struct hci_cp_set_conn_encrypt *cp;
1492 struct hci_conn *conn;
1493
1494 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1495
1496 if (!status)
1497 return;
1498
1499 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
1500 if (!cp)
1501 return;
1502
1503 hci_dev_lock(hdev);
1504
1505 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1506 if (conn) {
1507 if (conn->state == BT_CONFIG) {
1508 hci_proto_connect_cfm(conn, status);
1509 hci_conn_drop(conn);
1510 }
1511 }
1512
1513 hci_dev_unlock(hdev);
1514 }
1515
1516 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
1517 struct hci_conn *conn)
1518 {
1519 if (conn->state != BT_CONFIG || !conn->out)
1520 return 0;
1521
1522 if (conn->pending_sec_level == BT_SECURITY_SDP)
1523 return 0;
1524
1525 /* Only request authentication for SSP connections or non-SSP
1526 * devices with sec_level MEDIUM or HIGH or if MITM protection
1527 * is requested.
1528 */
1529 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
1530 conn->pending_sec_level != BT_SECURITY_FIPS &&
1531 conn->pending_sec_level != BT_SECURITY_HIGH &&
1532 conn->pending_sec_level != BT_SECURITY_MEDIUM)
1533 return 0;
1534
1535 return 1;
1536 }
1537
1538 static int hci_resolve_name(struct hci_dev *hdev,
1539 struct inquiry_entry *e)
1540 {
1541 struct hci_cp_remote_name_req cp;
1542
1543 memset(&cp, 0, sizeof(cp));
1544
1545 bacpy(&cp.bdaddr, &e->data.bdaddr);
1546 cp.pscan_rep_mode = e->data.pscan_rep_mode;
1547 cp.pscan_mode = e->data.pscan_mode;
1548 cp.clock_offset = e->data.clock_offset;
1549
1550 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
1551 }
1552
1553 static bool hci_resolve_next_name(struct hci_dev *hdev)
1554 {
1555 struct discovery_state *discov = &hdev->discovery;
1556 struct inquiry_entry *e;
1557
1558 if (list_empty(&discov->resolve))
1559 return false;
1560
1561 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
1562 if (!e)
1563 return false;
1564
1565 if (hci_resolve_name(hdev, e) == 0) {
1566 e->name_state = NAME_PENDING;
1567 return true;
1568 }
1569
1570 return false;
1571 }
1572
1573 static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
1574 bdaddr_t *bdaddr, u8 *name, u8 name_len)
1575 {
1576 struct discovery_state *discov = &hdev->discovery;
1577 struct inquiry_entry *e;
1578
1579 if (conn && !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
1580 mgmt_device_connected(hdev, bdaddr, ACL_LINK, 0x00, 0, name,
1581 name_len, conn->dev_class);
1582
1583 if (discov->state == DISCOVERY_STOPPED)
1584 return;
1585
1586 if (discov->state == DISCOVERY_STOPPING)
1587 goto discov_complete;
1588
1589 if (discov->state != DISCOVERY_RESOLVING)
1590 return;
1591
1592 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
1593 /* If the device was not found in a list of found devices names of which
1594 * are pending. there is no need to continue resolving a next name as it
1595 * will be done upon receiving another Remote Name Request Complete
1596 * Event */
1597 if (!e)
1598 return;
1599
1600 list_del(&e->list);
1601 if (name) {
1602 e->name_state = NAME_KNOWN;
1603 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
1604 e->data.rssi, name, name_len);
1605 } else {
1606 e->name_state = NAME_NOT_KNOWN;
1607 }
1608
1609 if (hci_resolve_next_name(hdev))
1610 return;
1611
1612 discov_complete:
1613 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1614 }
1615
1616 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
1617 {
1618 struct hci_cp_remote_name_req *cp;
1619 struct hci_conn *conn;
1620
1621 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1622
1623 /* If successful wait for the name req complete event before
1624 * checking for the need to do authentication */
1625 if (!status)
1626 return;
1627
1628 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
1629 if (!cp)
1630 return;
1631
1632 hci_dev_lock(hdev);
1633
1634 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1635
1636 if (test_bit(HCI_MGMT, &hdev->dev_flags))
1637 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
1638
1639 if (!conn)
1640 goto unlock;
1641
1642 if (!hci_outgoing_auth_needed(hdev, conn))
1643 goto unlock;
1644
1645 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
1646 struct hci_cp_auth_requested auth_cp;
1647
1648 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
1649
1650 auth_cp.handle = __cpu_to_le16(conn->handle);
1651 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
1652 sizeof(auth_cp), &auth_cp);
1653 }
1654
1655 unlock:
1656 hci_dev_unlock(hdev);
1657 }
1658
1659 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
1660 {
1661 struct hci_cp_read_remote_features *cp;
1662 struct hci_conn *conn;
1663
1664 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1665
1666 if (!status)
1667 return;
1668
1669 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
1670 if (!cp)
1671 return;
1672
1673 hci_dev_lock(hdev);
1674
1675 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1676 if (conn) {
1677 if (conn->state == BT_CONFIG) {
1678 hci_proto_connect_cfm(conn, status);
1679 hci_conn_drop(conn);
1680 }
1681 }
1682
1683 hci_dev_unlock(hdev);
1684 }
1685
1686 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
1687 {
1688 struct hci_cp_read_remote_ext_features *cp;
1689 struct hci_conn *conn;
1690
1691 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1692
1693 if (!status)
1694 return;
1695
1696 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
1697 if (!cp)
1698 return;
1699
1700 hci_dev_lock(hdev);
1701
1702 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1703 if (conn) {
1704 if (conn->state == BT_CONFIG) {
1705 hci_proto_connect_cfm(conn, status);
1706 hci_conn_drop(conn);
1707 }
1708 }
1709
1710 hci_dev_unlock(hdev);
1711 }
1712
1713 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
1714 {
1715 struct hci_cp_setup_sync_conn *cp;
1716 struct hci_conn *acl, *sco;
1717 __u16 handle;
1718
1719 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1720
1721 if (!status)
1722 return;
1723
1724 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
1725 if (!cp)
1726 return;
1727
1728 handle = __le16_to_cpu(cp->handle);
1729
1730 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
1731
1732 hci_dev_lock(hdev);
1733
1734 acl = hci_conn_hash_lookup_handle(hdev, handle);
1735 if (acl) {
1736 sco = acl->link;
1737 if (sco) {
1738 sco->state = BT_CLOSED;
1739
1740 hci_proto_connect_cfm(sco, status);
1741 hci_conn_del(sco);
1742 }
1743 }
1744
1745 hci_dev_unlock(hdev);
1746 }
1747
1748 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
1749 {
1750 struct hci_cp_sniff_mode *cp;
1751 struct hci_conn *conn;
1752
1753 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1754
1755 if (!status)
1756 return;
1757
1758 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
1759 if (!cp)
1760 return;
1761
1762 hci_dev_lock(hdev);
1763
1764 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1765 if (conn) {
1766 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1767
1768 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
1769 hci_sco_setup(conn, status);
1770 }
1771
1772 hci_dev_unlock(hdev);
1773 }
1774
1775 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
1776 {
1777 struct hci_cp_exit_sniff_mode *cp;
1778 struct hci_conn *conn;
1779
1780 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1781
1782 if (!status)
1783 return;
1784
1785 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
1786 if (!cp)
1787 return;
1788
1789 hci_dev_lock(hdev);
1790
1791 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1792 if (conn) {
1793 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1794
1795 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
1796 hci_sco_setup(conn, status);
1797 }
1798
1799 hci_dev_unlock(hdev);
1800 }
1801
1802 static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
1803 {
1804 struct hci_cp_disconnect *cp;
1805 struct hci_conn *conn;
1806
1807 if (!status)
1808 return;
1809
1810 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
1811 if (!cp)
1812 return;
1813
1814 hci_dev_lock(hdev);
1815
1816 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1817 if (conn)
1818 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
1819 conn->dst_type, status);
1820
1821 hci_dev_unlock(hdev);
1822 }
1823
1824 static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status)
1825 {
1826 struct hci_cp_create_phy_link *cp;
1827
1828 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1829
1830 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_PHY_LINK);
1831 if (!cp)
1832 return;
1833
1834 hci_dev_lock(hdev);
1835
1836 if (status) {
1837 struct hci_conn *hcon;
1838
1839 hcon = hci_conn_hash_lookup_handle(hdev, cp->phy_handle);
1840 if (hcon)
1841 hci_conn_del(hcon);
1842 } else {
1843 amp_write_remote_assoc(hdev, cp->phy_handle);
1844 }
1845
1846 hci_dev_unlock(hdev);
1847 }
1848
1849 static void hci_cs_accept_phylink(struct hci_dev *hdev, u8 status)
1850 {
1851 struct hci_cp_accept_phy_link *cp;
1852
1853 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1854
1855 if (status)
1856 return;
1857
1858 cp = hci_sent_cmd_data(hdev, HCI_OP_ACCEPT_PHY_LINK);
1859 if (!cp)
1860 return;
1861
1862 amp_write_remote_assoc(hdev, cp->phy_handle);
1863 }
1864
1865 static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
1866 {
1867 struct hci_cp_le_create_conn *cp;
1868 struct hci_conn *conn;
1869
1870 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1871
1872 /* All connection failure handling is taken care of by the
1873 * hci_le_conn_failed function which is triggered by the HCI
1874 * request completion callbacks used for connecting.
1875 */
1876 if (status)
1877 return;
1878
1879 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
1880 if (!cp)
1881 return;
1882
1883 hci_dev_lock(hdev);
1884
1885 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr);
1886 if (!conn)
1887 goto unlock;
1888
1889 /* Store the initiator and responder address information which
1890 * is needed for SMP. These values will not change during the
1891 * lifetime of the connection.
1892 */
1893 conn->init_addr_type = cp->own_address_type;
1894 if (cp->own_address_type == ADDR_LE_DEV_RANDOM)
1895 bacpy(&conn->init_addr, &hdev->random_addr);
1896 else
1897 bacpy(&conn->init_addr, &hdev->bdaddr);
1898
1899 conn->resp_addr_type = cp->peer_addr_type;
1900 bacpy(&conn->resp_addr, &cp->peer_addr);
1901
1902 /* We don't want the connection attempt to stick around
1903 * indefinitely since LE doesn't have a page timeout concept
1904 * like BR/EDR. Set a timer for any connection that doesn't use
1905 * the white list for connecting.
1906 */
1907 if (cp->filter_policy == HCI_LE_USE_PEER_ADDR)
1908 queue_delayed_work(conn->hdev->workqueue,
1909 &conn->le_conn_timeout,
1910 conn->conn_timeout);
1911
1912 unlock:
1913 hci_dev_unlock(hdev);
1914 }
1915
1916 static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
1917 {
1918 struct hci_cp_le_start_enc *cp;
1919 struct hci_conn *conn;
1920
1921 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1922
1923 if (!status)
1924 return;
1925
1926 hci_dev_lock(hdev);
1927
1928 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
1929 if (!cp)
1930 goto unlock;
1931
1932 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1933 if (!conn)
1934 goto unlock;
1935
1936 if (conn->state != BT_CONNECTED)
1937 goto unlock;
1938
1939 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
1940 hci_conn_drop(conn);
1941
1942 unlock:
1943 hci_dev_unlock(hdev);
1944 }
1945
1946 static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1947 {
1948 __u8 status = *((__u8 *) skb->data);
1949 struct discovery_state *discov = &hdev->discovery;
1950 struct inquiry_entry *e;
1951
1952 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1953
1954 hci_conn_check_pending(hdev);
1955
1956 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
1957 return;
1958
1959 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
1960 wake_up_bit(&hdev->flags, HCI_INQUIRY);
1961
1962 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
1963 return;
1964
1965 hci_dev_lock(hdev);
1966
1967 if (discov->state != DISCOVERY_FINDING)
1968 goto unlock;
1969
1970 if (list_empty(&discov->resolve)) {
1971 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1972 goto unlock;
1973 }
1974
1975 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
1976 if (e && hci_resolve_name(hdev, e) == 0) {
1977 e->name_state = NAME_PENDING;
1978 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
1979 } else {
1980 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1981 }
1982
1983 unlock:
1984 hci_dev_unlock(hdev);
1985 }
1986
1987 static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
1988 {
1989 struct inquiry_data data;
1990 struct inquiry_info *info = (void *) (skb->data + 1);
1991 int num_rsp = *((__u8 *) skb->data);
1992
1993 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1994
1995 if (!num_rsp)
1996 return;
1997
1998 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
1999 return;
2000
2001 hci_dev_lock(hdev);
2002
2003 for (; num_rsp; num_rsp--, info++) {
2004 u32 flags;
2005
2006 bacpy(&data.bdaddr, &info->bdaddr);
2007 data.pscan_rep_mode = info->pscan_rep_mode;
2008 data.pscan_period_mode = info->pscan_period_mode;
2009 data.pscan_mode = info->pscan_mode;
2010 memcpy(data.dev_class, info->dev_class, 3);
2011 data.clock_offset = info->clock_offset;
2012 data.rssi = 0x00;
2013 data.ssp_mode = 0x00;
2014
2015 flags = hci_inquiry_cache_update(hdev, &data, false);
2016
2017 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2018 info->dev_class, 0, flags, NULL, 0, NULL, 0);
2019 }
2020
2021 hci_dev_unlock(hdev);
2022 }
2023
2024 static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2025 {
2026 struct hci_ev_conn_complete *ev = (void *) skb->data;
2027 struct hci_conn *conn;
2028
2029 BT_DBG("%s", hdev->name);
2030
2031 hci_dev_lock(hdev);
2032
2033 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
2034 if (!conn) {
2035 if (ev->link_type != SCO_LINK)
2036 goto unlock;
2037
2038 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
2039 if (!conn)
2040 goto unlock;
2041
2042 conn->type = SCO_LINK;
2043 }
2044
2045 if (!ev->status) {
2046 conn->handle = __le16_to_cpu(ev->handle);
2047
2048 if (conn->type == ACL_LINK) {
2049 conn->state = BT_CONFIG;
2050 hci_conn_hold(conn);
2051
2052 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
2053 !hci_find_link_key(hdev, &ev->bdaddr))
2054 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
2055 else
2056 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2057 } else
2058 conn->state = BT_CONNECTED;
2059
2060 hci_conn_add_sysfs(conn);
2061
2062 if (test_bit(HCI_AUTH, &hdev->flags))
2063 set_bit(HCI_CONN_AUTH, &conn->flags);
2064
2065 if (test_bit(HCI_ENCRYPT, &hdev->flags))
2066 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2067
2068 /* Get remote features */
2069 if (conn->type == ACL_LINK) {
2070 struct hci_cp_read_remote_features cp;
2071 cp.handle = ev->handle;
2072 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
2073 sizeof(cp), &cp);
2074 }
2075
2076 /* Set packet type for incoming connection */
2077 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
2078 struct hci_cp_change_conn_ptype cp;
2079 cp.handle = ev->handle;
2080 cp.pkt_type = cpu_to_le16(conn->pkt_type);
2081 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
2082 &cp);
2083 }
2084 } else {
2085 conn->state = BT_CLOSED;
2086 if (conn->type == ACL_LINK)
2087 mgmt_connect_failed(hdev, &conn->dst, conn->type,
2088 conn->dst_type, ev->status);
2089 }
2090
2091 if (conn->type == ACL_LINK)
2092 hci_sco_setup(conn, ev->status);
2093
2094 if (ev->status) {
2095 hci_proto_connect_cfm(conn, ev->status);
2096 hci_conn_del(conn);
2097 } else if (ev->link_type != ACL_LINK)
2098 hci_proto_connect_cfm(conn, ev->status);
2099
2100 unlock:
2101 hci_dev_unlock(hdev);
2102
2103 hci_conn_check_pending(hdev);
2104 }
2105
2106 static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
2107 {
2108 struct hci_cp_reject_conn_req cp;
2109
2110 bacpy(&cp.bdaddr, bdaddr);
2111 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
2112 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
2113 }
2114
2115 static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2116 {
2117 struct hci_ev_conn_request *ev = (void *) skb->data;
2118 int mask = hdev->link_mode;
2119 struct inquiry_entry *ie;
2120 struct hci_conn *conn;
2121 __u8 flags = 0;
2122
2123 BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr,
2124 ev->link_type);
2125
2126 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
2127 &flags);
2128
2129 if (!(mask & HCI_LM_ACCEPT)) {
2130 hci_reject_conn(hdev, &ev->bdaddr);
2131 return;
2132 }
2133
2134 if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr,
2135 BDADDR_BREDR)) {
2136 hci_reject_conn(hdev, &ev->bdaddr);
2137 return;
2138 }
2139
2140 if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags) &&
2141 !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
2142 BDADDR_BREDR)) {
2143 hci_reject_conn(hdev, &ev->bdaddr);
2144 return;
2145 }
2146
2147 /* Connection accepted */
2148
2149 hci_dev_lock(hdev);
2150
2151 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2152 if (ie)
2153 memcpy(ie->data.dev_class, ev->dev_class, 3);
2154
2155 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
2156 &ev->bdaddr);
2157 if (!conn) {
2158 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
2159 HCI_ROLE_SLAVE);
2160 if (!conn) {
2161 BT_ERR("No memory for new connection");
2162 hci_dev_unlock(hdev);
2163 return;
2164 }
2165 }
2166
2167 memcpy(conn->dev_class, ev->dev_class, 3);
2168
2169 hci_dev_unlock(hdev);
2170
2171 if (ev->link_type == ACL_LINK ||
2172 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
2173 struct hci_cp_accept_conn_req cp;
2174 conn->state = BT_CONNECT;
2175
2176 bacpy(&cp.bdaddr, &ev->bdaddr);
2177
2178 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
2179 cp.role = 0x00; /* Become master */
2180 else
2181 cp.role = 0x01; /* Remain slave */
2182
2183 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
2184 } else if (!(flags & HCI_PROTO_DEFER)) {
2185 struct hci_cp_accept_sync_conn_req cp;
2186 conn->state = BT_CONNECT;
2187
2188 bacpy(&cp.bdaddr, &ev->bdaddr);
2189 cp.pkt_type = cpu_to_le16(conn->pkt_type);
2190
2191 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
2192 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
2193 cp.max_latency = cpu_to_le16(0xffff);
2194 cp.content_format = cpu_to_le16(hdev->voice_setting);
2195 cp.retrans_effort = 0xff;
2196
2197 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
2198 &cp);
2199 } else {
2200 conn->state = BT_CONNECT2;
2201 hci_proto_connect_cfm(conn, 0);
2202 }
2203 }
2204
2205 static u8 hci_to_mgmt_reason(u8 err)
2206 {
2207 switch (err) {
2208 case HCI_ERROR_CONNECTION_TIMEOUT:
2209 return MGMT_DEV_DISCONN_TIMEOUT;
2210 case HCI_ERROR_REMOTE_USER_TERM:
2211 case HCI_ERROR_REMOTE_LOW_RESOURCES:
2212 case HCI_ERROR_REMOTE_POWER_OFF:
2213 return MGMT_DEV_DISCONN_REMOTE;
2214 case HCI_ERROR_LOCAL_HOST_TERM:
2215 return MGMT_DEV_DISCONN_LOCAL_HOST;
2216 default:
2217 return MGMT_DEV_DISCONN_UNKNOWN;
2218 }
2219 }
2220
2221 static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2222 {
2223 struct hci_ev_disconn_complete *ev = (void *) skb->data;
2224 u8 reason = hci_to_mgmt_reason(ev->reason);
2225 struct hci_conn_params *params;
2226 struct hci_conn *conn;
2227 bool mgmt_connected;
2228 u8 type;
2229
2230 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2231
2232 hci_dev_lock(hdev);
2233
2234 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2235 if (!conn)
2236 goto unlock;
2237
2238 if (ev->status) {
2239 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2240 conn->dst_type, ev->status);
2241 goto unlock;
2242 }
2243
2244 conn->state = BT_CLOSED;
2245
2246 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2247 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2248 reason, mgmt_connected);
2249
2250 if (conn->type == ACL_LINK &&
2251 test_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2252 hci_remove_link_key(hdev, &conn->dst);
2253
2254 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2255 if (params) {
2256 switch (params->auto_connect) {
2257 case HCI_AUTO_CONN_LINK_LOSS:
2258 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2259 break;
2260 /* Fall through */
2261
2262 case HCI_AUTO_CONN_DIRECT:
2263 case HCI_AUTO_CONN_ALWAYS:
2264 list_del_init(&params->action);
2265 list_add(&params->action, &hdev->pend_le_conns);
2266 hci_update_background_scan(hdev);
2267 break;
2268
2269 default:
2270 break;
2271 }
2272 }
2273
2274 type = conn->type;
2275
2276 hci_proto_disconn_cfm(conn, ev->reason);
2277 hci_conn_del(conn);
2278
2279 /* Re-enable advertising if necessary, since it might
2280 * have been disabled by the connection. From the
2281 * HCI_LE_Set_Advertise_Enable command description in
2282 * the core specification (v4.0):
2283 * "The Controller shall continue advertising until the Host
2284 * issues an LE_Set_Advertise_Enable command with
2285 * Advertising_Enable set to 0x00 (Advertising is disabled)
2286 * or until a connection is created or until the Advertising
2287 * is timed out due to Directed Advertising."
2288 */
2289 if (type == LE_LINK)
2290 mgmt_reenable_advertising(hdev);
2291
2292 unlock:
2293 hci_dev_unlock(hdev);
2294 }
2295
2296 static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2297 {
2298 struct hci_ev_auth_complete *ev = (void *) skb->data;
2299 struct hci_conn *conn;
2300
2301 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2302
2303 hci_dev_lock(hdev);
2304
2305 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2306 if (!conn)
2307 goto unlock;
2308
2309 if (!ev->status) {
2310 if (!hci_conn_ssp_enabled(conn) &&
2311 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
2312 BT_INFO("re-auth of legacy device is not possible.");
2313 } else {
2314 set_bit(HCI_CONN_AUTH, &conn->flags);
2315 conn->sec_level = conn->pending_sec_level;
2316 }
2317 } else {
2318 mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type,
2319 ev->status);
2320 }
2321
2322 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2323 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
2324
2325 if (conn->state == BT_CONFIG) {
2326 if (!ev->status && hci_conn_ssp_enabled(conn)) {
2327 struct hci_cp_set_conn_encrypt cp;
2328 cp.handle = ev->handle;
2329 cp.encrypt = 0x01;
2330 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2331 &cp);
2332 } else {
2333 conn->state = BT_CONNECTED;
2334 hci_proto_connect_cfm(conn, ev->status);
2335 hci_conn_drop(conn);
2336 }
2337 } else {
2338 hci_auth_cfm(conn, ev->status);
2339
2340 hci_conn_hold(conn);
2341 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2342 hci_conn_drop(conn);
2343 }
2344
2345 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
2346 if (!ev->status) {
2347 struct hci_cp_set_conn_encrypt cp;
2348 cp.handle = ev->handle;
2349 cp.encrypt = 0x01;
2350 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2351 &cp);
2352 } else {
2353 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2354 hci_encrypt_cfm(conn, ev->status, 0x00);
2355 }
2356 }
2357
2358 unlock:
2359 hci_dev_unlock(hdev);
2360 }
2361
2362 static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
2363 {
2364 struct hci_ev_remote_name *ev = (void *) skb->data;
2365 struct hci_conn *conn;
2366
2367 BT_DBG("%s", hdev->name);
2368
2369 hci_conn_check_pending(hdev);
2370
2371 hci_dev_lock(hdev);
2372
2373 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2374
2375 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
2376 goto check_auth;
2377
2378 if (ev->status == 0)
2379 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
2380 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
2381 else
2382 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
2383
2384 check_auth:
2385 if (!conn)
2386 goto unlock;
2387
2388 if (!hci_outgoing_auth_needed(hdev, conn))
2389 goto unlock;
2390
2391 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2392 struct hci_cp_auth_requested cp;
2393
2394 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2395
2396 cp.handle = __cpu_to_le16(conn->handle);
2397 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
2398 }
2399
2400 unlock:
2401 hci_dev_unlock(hdev);
2402 }
2403
2404 static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2405 {
2406 struct hci_ev_encrypt_change *ev = (void *) skb->data;
2407 struct hci_conn *conn;
2408
2409 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2410
2411 hci_dev_lock(hdev);
2412
2413 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2414 if (!conn)
2415 goto unlock;
2416
2417 if (!ev->status) {
2418 if (ev->encrypt) {
2419 /* Encryption implies authentication */
2420 set_bit(HCI_CONN_AUTH, &conn->flags);
2421 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2422 conn->sec_level = conn->pending_sec_level;
2423
2424 /* P-256 authentication key implies FIPS */
2425 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
2426 set_bit(HCI_CONN_FIPS, &conn->flags);
2427
2428 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
2429 conn->type == LE_LINK)
2430 set_bit(HCI_CONN_AES_CCM, &conn->flags);
2431 } else {
2432 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
2433 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
2434 }
2435 }
2436
2437 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2438
2439 if (ev->status && conn->state == BT_CONNECTED) {
2440 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2441 hci_conn_drop(conn);
2442 goto unlock;
2443 }
2444
2445 if (conn->state == BT_CONFIG) {
2446 if (!ev->status)
2447 conn->state = BT_CONNECTED;
2448
2449 /* In Secure Connections Only mode, do not allow any
2450 * connections that are not encrypted with AES-CCM
2451 * using a P-256 authenticated combination key.
2452 */
2453 if (test_bit(HCI_SC_ONLY, &hdev->dev_flags) &&
2454 (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
2455 conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
2456 hci_proto_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
2457 hci_conn_drop(conn);
2458 goto unlock;
2459 }
2460
2461 hci_proto_connect_cfm(conn, ev->status);
2462 hci_conn_drop(conn);
2463 } else
2464 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
2465
2466 unlock:
2467 hci_dev_unlock(hdev);
2468 }
2469
2470 static void hci_change_link_key_complete_evt(struct hci_dev *hdev,
2471 struct sk_buff *skb)
2472 {
2473 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
2474 struct hci_conn *conn;
2475
2476 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2477
2478 hci_dev_lock(hdev);
2479
2480 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2481 if (conn) {
2482 if (!ev->status)
2483 set_bit(HCI_CONN_SECURE, &conn->flags);
2484
2485 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2486
2487 hci_key_change_cfm(conn, ev->status);
2488 }
2489
2490 hci_dev_unlock(hdev);
2491 }
2492
2493 static void hci_remote_features_evt(struct hci_dev *hdev,
2494 struct sk_buff *skb)
2495 {
2496 struct hci_ev_remote_features *ev = (void *) skb->data;
2497 struct hci_conn *conn;
2498
2499 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2500
2501 hci_dev_lock(hdev);
2502
2503 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2504 if (!conn)
2505 goto unlock;
2506
2507 if (!ev->status)
2508 memcpy(conn->features[0], ev->features, 8);
2509
2510 if (conn->state != BT_CONFIG)
2511 goto unlock;
2512
2513 if (!ev->status && lmp_ssp_capable(hdev) && lmp_ssp_capable(conn)) {
2514 struct hci_cp_read_remote_ext_features cp;
2515 cp.handle = ev->handle;
2516 cp.page = 0x01;
2517 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
2518 sizeof(cp), &cp);
2519 goto unlock;
2520 }
2521
2522 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
2523 struct hci_cp_remote_name_req cp;
2524 memset(&cp, 0, sizeof(cp));
2525 bacpy(&cp.bdaddr, &conn->dst);
2526 cp.pscan_rep_mode = 0x02;
2527 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2528 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2529 mgmt_device_connected(hdev, &conn->dst, conn->type,
2530 conn->dst_type, 0, NULL, 0,
2531 conn->dev_class);
2532
2533 if (!hci_outgoing_auth_needed(hdev, conn)) {
2534 conn->state = BT_CONNECTED;
2535 hci_proto_connect_cfm(conn, ev->status);
2536 hci_conn_drop(conn);
2537 }
2538
2539 unlock:
2540 hci_dev_unlock(hdev);
2541 }
2542
2543 static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2544 {
2545 struct hci_ev_cmd_complete *ev = (void *) skb->data;
2546 u8 status = skb->data[sizeof(*ev)];
2547 __u16 opcode;
2548
2549 skb_pull(skb, sizeof(*ev));
2550
2551 opcode = __le16_to_cpu(ev->opcode);
2552
2553 switch (opcode) {
2554 case HCI_OP_INQUIRY_CANCEL:
2555 hci_cc_inquiry_cancel(hdev, skb);
2556 break;
2557
2558 case HCI_OP_PERIODIC_INQ:
2559 hci_cc_periodic_inq(hdev, skb);
2560 break;
2561
2562 case HCI_OP_EXIT_PERIODIC_INQ:
2563 hci_cc_exit_periodic_inq(hdev, skb);
2564 break;
2565
2566 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
2567 hci_cc_remote_name_req_cancel(hdev, skb);
2568 break;
2569
2570 case HCI_OP_ROLE_DISCOVERY:
2571 hci_cc_role_discovery(hdev, skb);
2572 break;
2573
2574 case HCI_OP_READ_LINK_POLICY:
2575 hci_cc_read_link_policy(hdev, skb);
2576 break;
2577
2578 case HCI_OP_WRITE_LINK_POLICY:
2579 hci_cc_write_link_policy(hdev, skb);
2580 break;
2581
2582 case HCI_OP_READ_DEF_LINK_POLICY:
2583 hci_cc_read_def_link_policy(hdev, skb);
2584 break;
2585
2586 case HCI_OP_WRITE_DEF_LINK_POLICY:
2587 hci_cc_write_def_link_policy(hdev, skb);
2588 break;
2589
2590 case HCI_OP_RESET:
2591 hci_cc_reset(hdev, skb);
2592 break;
2593
2594 case HCI_OP_WRITE_LOCAL_NAME:
2595 hci_cc_write_local_name(hdev, skb);
2596 break;
2597
2598 case HCI_OP_READ_LOCAL_NAME:
2599 hci_cc_read_local_name(hdev, skb);
2600 break;
2601
2602 case HCI_OP_WRITE_AUTH_ENABLE:
2603 hci_cc_write_auth_enable(hdev, skb);
2604 break;
2605
2606 case HCI_OP_WRITE_ENCRYPT_MODE:
2607 hci_cc_write_encrypt_mode(hdev, skb);
2608 break;
2609
2610 case HCI_OP_WRITE_SCAN_ENABLE:
2611 hci_cc_write_scan_enable(hdev, skb);
2612 break;
2613
2614 case HCI_OP_READ_CLASS_OF_DEV:
2615 hci_cc_read_class_of_dev(hdev, skb);
2616 break;
2617
2618 case HCI_OP_WRITE_CLASS_OF_DEV:
2619 hci_cc_write_class_of_dev(hdev, skb);
2620 break;
2621
2622 case HCI_OP_READ_VOICE_SETTING:
2623 hci_cc_read_voice_setting(hdev, skb);
2624 break;
2625
2626 case HCI_OP_WRITE_VOICE_SETTING:
2627 hci_cc_write_voice_setting(hdev, skb);
2628 break;
2629
2630 case HCI_OP_READ_NUM_SUPPORTED_IAC:
2631 hci_cc_read_num_supported_iac(hdev, skb);
2632 break;
2633
2634 case HCI_OP_WRITE_SSP_MODE:
2635 hci_cc_write_ssp_mode(hdev, skb);
2636 break;
2637
2638 case HCI_OP_WRITE_SC_SUPPORT:
2639 hci_cc_write_sc_support(hdev, skb);
2640 break;
2641
2642 case HCI_OP_READ_LOCAL_VERSION:
2643 hci_cc_read_local_version(hdev, skb);
2644 break;
2645
2646 case HCI_OP_READ_LOCAL_COMMANDS:
2647 hci_cc_read_local_commands(hdev, skb);
2648 break;
2649
2650 case HCI_OP_READ_LOCAL_FEATURES:
2651 hci_cc_read_local_features(hdev, skb);
2652 break;
2653
2654 case HCI_OP_READ_LOCAL_EXT_FEATURES:
2655 hci_cc_read_local_ext_features(hdev, skb);
2656 break;
2657
2658 case HCI_OP_READ_BUFFER_SIZE:
2659 hci_cc_read_buffer_size(hdev, skb);
2660 break;
2661
2662 case HCI_OP_READ_BD_ADDR:
2663 hci_cc_read_bd_addr(hdev, skb);
2664 break;
2665
2666 case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
2667 hci_cc_read_page_scan_activity(hdev, skb);
2668 break;
2669
2670 case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY:
2671 hci_cc_write_page_scan_activity(hdev, skb);
2672 break;
2673
2674 case HCI_OP_READ_PAGE_SCAN_TYPE:
2675 hci_cc_read_page_scan_type(hdev, skb);
2676 break;
2677
2678 case HCI_OP_WRITE_PAGE_SCAN_TYPE:
2679 hci_cc_write_page_scan_type(hdev, skb);
2680 break;
2681
2682 case HCI_OP_READ_DATA_BLOCK_SIZE:
2683 hci_cc_read_data_block_size(hdev, skb);
2684 break;
2685
2686 case HCI_OP_READ_FLOW_CONTROL_MODE:
2687 hci_cc_read_flow_control_mode(hdev, skb);
2688 break;
2689
2690 case HCI_OP_READ_LOCAL_AMP_INFO:
2691 hci_cc_read_local_amp_info(hdev, skb);
2692 break;
2693
2694 case HCI_OP_READ_CLOCK:
2695 hci_cc_read_clock(hdev, skb);
2696 break;
2697
2698 case HCI_OP_READ_LOCAL_AMP_ASSOC:
2699 hci_cc_read_local_amp_assoc(hdev, skb);
2700 break;
2701
2702 case HCI_OP_READ_INQ_RSP_TX_POWER:
2703 hci_cc_read_inq_rsp_tx_power(hdev, skb);
2704 break;
2705
2706 case HCI_OP_PIN_CODE_REPLY:
2707 hci_cc_pin_code_reply(hdev, skb);
2708 break;
2709
2710 case HCI_OP_PIN_CODE_NEG_REPLY:
2711 hci_cc_pin_code_neg_reply(hdev, skb);
2712 break;
2713
2714 case HCI_OP_READ_LOCAL_OOB_DATA:
2715 hci_cc_read_local_oob_data(hdev, skb);
2716 break;
2717
2718 case HCI_OP_READ_LOCAL_OOB_EXT_DATA:
2719 hci_cc_read_local_oob_ext_data(hdev, skb);
2720 break;
2721
2722 case HCI_OP_LE_READ_BUFFER_SIZE:
2723 hci_cc_le_read_buffer_size(hdev, skb);
2724 break;
2725
2726 case HCI_OP_LE_READ_LOCAL_FEATURES:
2727 hci_cc_le_read_local_features(hdev, skb);
2728 break;
2729
2730 case HCI_OP_LE_READ_ADV_TX_POWER:
2731 hci_cc_le_read_adv_tx_power(hdev, skb);
2732 break;
2733
2734 case HCI_OP_USER_CONFIRM_REPLY:
2735 hci_cc_user_confirm_reply(hdev, skb);
2736 break;
2737
2738 case HCI_OP_USER_CONFIRM_NEG_REPLY:
2739 hci_cc_user_confirm_neg_reply(hdev, skb);
2740 break;
2741
2742 case HCI_OP_USER_PASSKEY_REPLY:
2743 hci_cc_user_passkey_reply(hdev, skb);
2744 break;
2745
2746 case HCI_OP_USER_PASSKEY_NEG_REPLY:
2747 hci_cc_user_passkey_neg_reply(hdev, skb);
2748 break;
2749
2750 case HCI_OP_LE_SET_RANDOM_ADDR:
2751 hci_cc_le_set_random_addr(hdev, skb);
2752 break;
2753
2754 case HCI_OP_LE_SET_ADV_ENABLE:
2755 hci_cc_le_set_adv_enable(hdev, skb);
2756 break;
2757
2758 case HCI_OP_LE_SET_SCAN_PARAM:
2759 hci_cc_le_set_scan_param(hdev, skb);
2760 break;
2761
2762 case HCI_OP_LE_SET_SCAN_ENABLE:
2763 hci_cc_le_set_scan_enable(hdev, skb);
2764 break;
2765
2766 case HCI_OP_LE_READ_WHITE_LIST_SIZE:
2767 hci_cc_le_read_white_list_size(hdev, skb);
2768 break;
2769
2770 case HCI_OP_LE_CLEAR_WHITE_LIST:
2771 hci_cc_le_clear_white_list(hdev, skb);
2772 break;
2773
2774 case HCI_OP_LE_ADD_TO_WHITE_LIST:
2775 hci_cc_le_add_to_white_list(hdev, skb);
2776 break;
2777
2778 case HCI_OP_LE_DEL_FROM_WHITE_LIST:
2779 hci_cc_le_del_from_white_list(hdev, skb);
2780 break;
2781
2782 case HCI_OP_LE_READ_SUPPORTED_STATES:
2783 hci_cc_le_read_supported_states(hdev, skb);
2784 break;
2785
2786 case HCI_OP_WRITE_LE_HOST_SUPPORTED:
2787 hci_cc_write_le_host_supported(hdev, skb);
2788 break;
2789
2790 case HCI_OP_LE_SET_ADV_PARAM:
2791 hci_cc_set_adv_param(hdev, skb);
2792 break;
2793
2794 case HCI_OP_WRITE_REMOTE_AMP_ASSOC:
2795 hci_cc_write_remote_amp_assoc(hdev, skb);
2796 break;
2797
2798 case HCI_OP_READ_RSSI:
2799 hci_cc_read_rssi(hdev, skb);
2800 break;
2801
2802 case HCI_OP_READ_TX_POWER:
2803 hci_cc_read_tx_power(hdev, skb);
2804 break;
2805
2806 default:
2807 BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
2808 break;
2809 }
2810
2811 if (opcode != HCI_OP_NOP)
2812 cancel_delayed_work(&hdev->cmd_timer);
2813
2814 hci_req_cmd_complete(hdev, opcode, status);
2815
2816 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
2817 atomic_set(&hdev->cmd_cnt, 1);
2818 if (!skb_queue_empty(&hdev->cmd_q))
2819 queue_work(hdev->workqueue, &hdev->cmd_work);
2820 }
2821 }
2822
2823 static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
2824 {
2825 struct hci_ev_cmd_status *ev = (void *) skb->data;
2826 __u16 opcode;
2827
2828 skb_pull(skb, sizeof(*ev));
2829
2830 opcode = __le16_to_cpu(ev->opcode);
2831
2832 switch (opcode) {
2833 case HCI_OP_INQUIRY:
2834 hci_cs_inquiry(hdev, ev->status);
2835 break;
2836
2837 case HCI_OP_CREATE_CONN:
2838 hci_cs_create_conn(hdev, ev->status);
2839 break;
2840
2841 case HCI_OP_ADD_SCO:
2842 hci_cs_add_sco(hdev, ev->status);
2843 break;
2844
2845 case HCI_OP_AUTH_REQUESTED:
2846 hci_cs_auth_requested(hdev, ev->status);
2847 break;
2848
2849 case HCI_OP_SET_CONN_ENCRYPT:
2850 hci_cs_set_conn_encrypt(hdev, ev->status);
2851 break;
2852
2853 case HCI_OP_REMOTE_NAME_REQ:
2854 hci_cs_remote_name_req(hdev, ev->status);
2855 break;
2856
2857 case HCI_OP_READ_REMOTE_FEATURES:
2858 hci_cs_read_remote_features(hdev, ev->status);
2859 break;
2860
2861 case HCI_OP_READ_REMOTE_EXT_FEATURES:
2862 hci_cs_read_remote_ext_features(hdev, ev->status);
2863 break;
2864
2865 case HCI_OP_SETUP_SYNC_CONN:
2866 hci_cs_setup_sync_conn(hdev, ev->status);
2867 break;
2868
2869 case HCI_OP_SNIFF_MODE:
2870 hci_cs_sniff_mode(hdev, ev->status);
2871 break;
2872
2873 case HCI_OP_EXIT_SNIFF_MODE:
2874 hci_cs_exit_sniff_mode(hdev, ev->status);
2875 break;
2876
2877 case HCI_OP_DISCONNECT:
2878 hci_cs_disconnect(hdev, ev->status);
2879 break;
2880
2881 case HCI_OP_CREATE_PHY_LINK:
2882 hci_cs_create_phylink(hdev, ev->status);
2883 break;
2884
2885 case HCI_OP_ACCEPT_PHY_LINK:
2886 hci_cs_accept_phylink(hdev, ev->status);
2887 break;
2888
2889 case HCI_OP_LE_CREATE_CONN:
2890 hci_cs_le_create_conn(hdev, ev->status);
2891 break;
2892
2893 case HCI_OP_LE_START_ENC:
2894 hci_cs_le_start_enc(hdev, ev->status);
2895 break;
2896
2897 default:
2898 BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
2899 break;
2900 }
2901
2902 if (opcode != HCI_OP_NOP)
2903 cancel_delayed_work(&hdev->cmd_timer);
2904
2905 if (ev->status ||
2906 (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event))
2907 hci_req_cmd_complete(hdev, opcode, ev->status);
2908
2909 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
2910 atomic_set(&hdev->cmd_cnt, 1);
2911 if (!skb_queue_empty(&hdev->cmd_q))
2912 queue_work(hdev->workqueue, &hdev->cmd_work);
2913 }
2914 }
2915
2916 static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2917 {
2918 struct hci_ev_role_change *ev = (void *) skb->data;
2919 struct hci_conn *conn;
2920
2921 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2922
2923 hci_dev_lock(hdev);
2924
2925 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2926 if (conn) {
2927 if (!ev->status)
2928 conn->role = ev->role;
2929
2930 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
2931
2932 hci_role_switch_cfm(conn, ev->status, ev->role);
2933 }
2934
2935 hci_dev_unlock(hdev);
2936 }
2937
2938 static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
2939 {
2940 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
2941 int i;
2942
2943 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
2944 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
2945 return;
2946 }
2947
2948 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
2949 ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
2950 BT_DBG("%s bad parameters", hdev->name);
2951 return;
2952 }
2953
2954 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
2955
2956 for (i = 0; i < ev->num_hndl; i++) {
2957 struct hci_comp_pkts_info *info = &ev->handles[i];
2958 struct hci_conn *conn;
2959 __u16 handle, count;
2960
2961 handle = __le16_to_cpu(info->handle);
2962 count = __le16_to_cpu(info->count);
2963
2964 conn = hci_conn_hash_lookup_handle(hdev, handle);
2965 if (!conn)
2966 continue;
2967
2968 conn->sent -= count;
2969
2970 switch (conn->type) {
2971 case ACL_LINK:
2972 hdev->acl_cnt += count;
2973 if (hdev->acl_cnt > hdev->acl_pkts)
2974 hdev->acl_cnt = hdev->acl_pkts;
2975 break;
2976
2977 case LE_LINK:
2978 if (hdev->le_pkts) {
2979 hdev->le_cnt += count;
2980 if (hdev->le_cnt > hdev->le_pkts)
2981 hdev->le_cnt = hdev->le_pkts;
2982 } else {
2983 hdev->acl_cnt += count;
2984 if (hdev->acl_cnt > hdev->acl_pkts)
2985 hdev->acl_cnt = hdev->acl_pkts;
2986 }
2987 break;
2988
2989 case SCO_LINK:
2990 hdev->sco_cnt += count;
2991 if (hdev->sco_cnt > hdev->sco_pkts)
2992 hdev->sco_cnt = hdev->sco_pkts;
2993 break;
2994
2995 default:
2996 BT_ERR("Unknown type %d conn %p", conn->type, conn);
2997 break;
2998 }
2999 }
3000
3001 queue_work(hdev->workqueue, &hdev->tx_work);
3002 }
3003
3004 static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
3005 __u16 handle)
3006 {
3007 struct hci_chan *chan;
3008
3009 switch (hdev->dev_type) {
3010 case HCI_BREDR:
3011 return hci_conn_hash_lookup_handle(hdev, handle);
3012 case HCI_AMP:
3013 chan = hci_chan_lookup_handle(hdev, handle);
3014 if (chan)
3015 return chan->conn;
3016 break;
3017 default:
3018 BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type);
3019 break;
3020 }
3021
3022 return NULL;
3023 }
3024
3025 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
3026 {
3027 struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
3028 int i;
3029
3030 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
3031 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
3032 return;
3033 }
3034
3035 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
3036 ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
3037 BT_DBG("%s bad parameters", hdev->name);
3038 return;
3039 }
3040
3041 BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
3042 ev->num_hndl);
3043
3044 for (i = 0; i < ev->num_hndl; i++) {
3045 struct hci_comp_blocks_info *info = &ev->handles[i];
3046 struct hci_conn *conn = NULL;
3047 __u16 handle, block_count;
3048
3049 handle = __le16_to_cpu(info->handle);
3050 block_count = __le16_to_cpu(info->blocks);
3051
3052 conn = __hci_conn_lookup_handle(hdev, handle);
3053 if (!conn)
3054 continue;
3055
3056 conn->sent -= block_count;
3057
3058 switch (conn->type) {
3059 case ACL_LINK:
3060 case AMP_LINK:
3061 hdev->block_cnt += block_count;
3062 if (hdev->block_cnt > hdev->num_blocks)
3063 hdev->block_cnt = hdev->num_blocks;
3064 break;
3065
3066 default:
3067 BT_ERR("Unknown type %d conn %p", conn->type, conn);
3068 break;
3069 }
3070 }
3071
3072 queue_work(hdev->workqueue, &hdev->tx_work);
3073 }
3074
3075 static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3076 {
3077 struct hci_ev_mode_change *ev = (void *) skb->data;
3078 struct hci_conn *conn;
3079
3080 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3081
3082 hci_dev_lock(hdev);
3083
3084 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3085 if (conn) {
3086 conn->mode = ev->mode;
3087
3088 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
3089 &conn->flags)) {
3090 if (conn->mode == HCI_CM_ACTIVE)
3091 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3092 else
3093 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3094 }
3095
3096 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
3097 hci_sco_setup(conn, ev->status);
3098 }
3099
3100 hci_dev_unlock(hdev);
3101 }
3102
3103 static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3104 {
3105 struct hci_ev_pin_code_req *ev = (void *) skb->data;
3106 struct hci_conn *conn;
3107
3108 BT_DBG("%s", hdev->name);
3109
3110 hci_dev_lock(hdev);
3111
3112 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3113 if (!conn)
3114 goto unlock;
3115
3116 if (conn->state == BT_CONNECTED) {
3117 hci_conn_hold(conn);
3118 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3119 hci_conn_drop(conn);
3120 }
3121
3122 if (!test_bit(HCI_BONDABLE, &hdev->dev_flags) &&
3123 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
3124 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
3125 sizeof(ev->bdaddr), &ev->bdaddr);
3126 } else if (test_bit(HCI_MGMT, &hdev->dev_flags)) {
3127 u8 secure;
3128
3129 if (conn->pending_sec_level == BT_SECURITY_HIGH)
3130 secure = 1;
3131 else
3132 secure = 0;
3133
3134 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
3135 }
3136
3137 unlock:
3138 hci_dev_unlock(hdev);
3139 }
3140
3141 static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3142 {
3143 struct hci_ev_link_key_req *ev = (void *) skb->data;
3144 struct hci_cp_link_key_reply cp;
3145 struct hci_conn *conn;
3146 struct link_key *key;
3147
3148 BT_DBG("%s", hdev->name);
3149
3150 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3151 return;
3152
3153 hci_dev_lock(hdev);
3154
3155 key = hci_find_link_key(hdev, &ev->bdaddr);
3156 if (!key) {
3157 BT_DBG("%s link key not found for %pMR", hdev->name,
3158 &ev->bdaddr);
3159 goto not_found;
3160 }
3161
3162 BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
3163 &ev->bdaddr);
3164
3165 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3166 if (conn) {
3167 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
3168 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
3169 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
3170 BT_DBG("%s ignoring unauthenticated key", hdev->name);
3171 goto not_found;
3172 }
3173
3174 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
3175 (conn->pending_sec_level == BT_SECURITY_HIGH ||
3176 conn->pending_sec_level == BT_SECURITY_FIPS)) {
3177 BT_DBG("%s ignoring key unauthenticated for high security",
3178 hdev->name);
3179 goto not_found;
3180 }
3181
3182 conn->key_type = key->type;
3183 conn->pin_length = key->pin_len;
3184 }
3185
3186 bacpy(&cp.bdaddr, &ev->bdaddr);
3187 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
3188
3189 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
3190
3191 hci_dev_unlock(hdev);
3192
3193 return;
3194
3195 not_found:
3196 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
3197 hci_dev_unlock(hdev);
3198 }
3199
3200 static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
3201 {
3202 struct hci_ev_link_key_notify *ev = (void *) skb->data;
3203 struct hci_conn *conn;
3204 struct link_key *key;
3205 bool persistent;
3206 u8 pin_len = 0;
3207
3208 BT_DBG("%s", hdev->name);
3209
3210 hci_dev_lock(hdev);
3211
3212 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3213 if (conn) {
3214 hci_conn_hold(conn);
3215 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3216 pin_len = conn->pin_length;
3217
3218 if (ev->key_type != HCI_LK_CHANGED_COMBINATION)
3219 conn->key_type = ev->key_type;
3220
3221 hci_conn_drop(conn);
3222 }
3223
3224 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3225 goto unlock;
3226
3227 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
3228 ev->key_type, pin_len, &persistent);
3229 if (!key)
3230 goto unlock;
3231
3232 mgmt_new_link_key(hdev, key, persistent);
3233
3234 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
3235 * is set. If it's not set simply remove the key from the kernel
3236 * list (we've still notified user space about it but with
3237 * store_hint being 0).
3238 */
3239 if (key->type == HCI_LK_DEBUG_COMBINATION &&
3240 !test_bit(HCI_KEEP_DEBUG_KEYS, &hdev->dev_flags)) {
3241 list_del(&key->list);
3242 kfree(key);
3243 } else if (conn) {
3244 if (persistent)
3245 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3246 else
3247 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3248 }
3249
3250 unlock:
3251 hci_dev_unlock(hdev);
3252 }
3253
3254 static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
3255 {
3256 struct hci_ev_clock_offset *ev = (void *) skb->data;
3257 struct hci_conn *conn;
3258
3259 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3260
3261 hci_dev_lock(hdev);
3262
3263 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3264 if (conn && !ev->status) {
3265 struct inquiry_entry *ie;
3266
3267 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3268 if (ie) {
3269 ie->data.clock_offset = ev->clock_offset;
3270 ie->timestamp = jiffies;
3271 }
3272 }
3273
3274 hci_dev_unlock(hdev);
3275 }
3276
3277 static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3278 {
3279 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
3280 struct hci_conn *conn;
3281
3282 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3283
3284 hci_dev_lock(hdev);
3285
3286 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3287 if (conn && !ev->status)
3288 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
3289
3290 hci_dev_unlock(hdev);
3291 }
3292
3293 static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
3294 {
3295 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
3296 struct inquiry_entry *ie;
3297
3298 BT_DBG("%s", hdev->name);
3299
3300 hci_dev_lock(hdev);
3301
3302 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3303 if (ie) {
3304 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
3305 ie->timestamp = jiffies;
3306 }
3307
3308 hci_dev_unlock(hdev);
3309 }
3310
3311 static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
3312 struct sk_buff *skb)
3313 {
3314 struct inquiry_data data;
3315 int num_rsp = *((__u8 *) skb->data);
3316
3317 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3318
3319 if (!num_rsp)
3320 return;
3321
3322 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
3323 return;
3324
3325 hci_dev_lock(hdev);
3326
3327 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
3328 struct inquiry_info_with_rssi_and_pscan_mode *info;
3329 info = (void *) (skb->data + 1);
3330
3331 for (; num_rsp; num_rsp--, info++) {
3332 u32 flags;
3333
3334 bacpy(&data.bdaddr, &info->bdaddr);
3335 data.pscan_rep_mode = info->pscan_rep_mode;
3336 data.pscan_period_mode = info->pscan_period_mode;
3337 data.pscan_mode = info->pscan_mode;
3338 memcpy(data.dev_class, info->dev_class, 3);
3339 data.clock_offset = info->clock_offset;
3340 data.rssi = info->rssi;
3341 data.ssp_mode = 0x00;
3342
3343 flags = hci_inquiry_cache_update(hdev, &data, false);
3344
3345 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3346 info->dev_class, info->rssi,
3347 flags, NULL, 0, NULL, 0);
3348 }
3349 } else {
3350 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
3351
3352 for (; num_rsp; num_rsp--, info++) {
3353 u32 flags;
3354
3355 bacpy(&data.bdaddr, &info->bdaddr);
3356 data.pscan_rep_mode = info->pscan_rep_mode;
3357 data.pscan_period_mode = info->pscan_period_mode;
3358 data.pscan_mode = 0x00;
3359 memcpy(data.dev_class, info->dev_class, 3);
3360 data.clock_offset = info->clock_offset;
3361 data.rssi = info->rssi;
3362 data.ssp_mode = 0x00;
3363
3364 flags = hci_inquiry_cache_update(hdev, &data, false);
3365
3366 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3367 info->dev_class, info->rssi,
3368 flags, NULL, 0, NULL, 0);
3369 }
3370 }
3371
3372 hci_dev_unlock(hdev);
3373 }
3374
3375 static void hci_remote_ext_features_evt(struct hci_dev *hdev,
3376 struct sk_buff *skb)
3377 {
3378 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
3379 struct hci_conn *conn;
3380
3381 BT_DBG("%s", hdev->name);
3382
3383 hci_dev_lock(hdev);
3384
3385 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3386 if (!conn)
3387 goto unlock;
3388
3389 if (ev->page < HCI_MAX_PAGES)
3390 memcpy(conn->features[ev->page], ev->features, 8);
3391
3392 if (!ev->status && ev->page == 0x01) {
3393 struct inquiry_entry *ie;
3394
3395 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3396 if (ie)
3397 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
3398
3399 if (ev->features[0] & LMP_HOST_SSP) {
3400 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
3401 } else {
3402 /* It is mandatory by the Bluetooth specification that
3403 * Extended Inquiry Results are only used when Secure
3404 * Simple Pairing is enabled, but some devices violate
3405 * this.
3406 *
3407 * To make these devices work, the internal SSP
3408 * enabled flag needs to be cleared if the remote host
3409 * features do not indicate SSP support */
3410 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
3411 }
3412
3413 if (ev->features[0] & LMP_HOST_SC)
3414 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
3415 }
3416
3417 if (conn->state != BT_CONFIG)
3418 goto unlock;
3419
3420 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3421 struct hci_cp_remote_name_req cp;
3422 memset(&cp, 0, sizeof(cp));
3423 bacpy(&cp.bdaddr, &conn->dst);
3424 cp.pscan_rep_mode = 0x02;
3425 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3426 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3427 mgmt_device_connected(hdev, &conn->dst, conn->type,
3428 conn->dst_type, 0, NULL, 0,
3429 conn->dev_class);
3430
3431 if (!hci_outgoing_auth_needed(hdev, conn)) {
3432 conn->state = BT_CONNECTED;
3433 hci_proto_connect_cfm(conn, ev->status);
3434 hci_conn_drop(conn);
3435 }
3436
3437 unlock:
3438 hci_dev_unlock(hdev);
3439 }
3440
3441 static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
3442 struct sk_buff *skb)
3443 {
3444 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
3445 struct hci_conn *conn;
3446
3447 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3448
3449 hci_dev_lock(hdev);
3450
3451 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3452 if (!conn) {
3453 if (ev->link_type == ESCO_LINK)
3454 goto unlock;
3455
3456 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
3457 if (!conn)
3458 goto unlock;
3459
3460 conn->type = SCO_LINK;
3461 }
3462
3463 switch (ev->status) {
3464 case 0x00:
3465 conn->handle = __le16_to_cpu(ev->handle);
3466 conn->state = BT_CONNECTED;
3467
3468 hci_conn_add_sysfs(conn);
3469 break;
3470
3471 case 0x10: /* Connection Accept Timeout */
3472 case 0x0d: /* Connection Rejected due to Limited Resources */
3473 case 0x11: /* Unsupported Feature or Parameter Value */
3474 case 0x1c: /* SCO interval rejected */
3475 case 0x1a: /* Unsupported Remote Feature */
3476 case 0x1f: /* Unspecified error */
3477 case 0x20: /* Unsupported LMP Parameter value */
3478 if (conn->out) {
3479 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
3480 (hdev->esco_type & EDR_ESCO_MASK);
3481 if (hci_setup_sync(conn, conn->link->handle))
3482 goto unlock;
3483 }
3484 /* fall through */
3485
3486 default:
3487 conn->state = BT_CLOSED;
3488 break;
3489 }
3490
3491 hci_proto_connect_cfm(conn, ev->status);
3492 if (ev->status)
3493 hci_conn_del(conn);
3494
3495 unlock:
3496 hci_dev_unlock(hdev);
3497 }
3498
3499 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
3500 {
3501 size_t parsed = 0;
3502
3503 while (parsed < eir_len) {
3504 u8 field_len = eir[0];
3505
3506 if (field_len == 0)
3507 return parsed;
3508
3509 parsed += field_len + 1;
3510 eir += field_len + 1;
3511 }
3512
3513 return eir_len;
3514 }
3515
3516 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
3517 struct sk_buff *skb)
3518 {
3519 struct inquiry_data data;
3520 struct extended_inquiry_info *info = (void *) (skb->data + 1);
3521 int num_rsp = *((__u8 *) skb->data);
3522 size_t eir_len;
3523
3524 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3525
3526 if (!num_rsp)
3527 return;
3528
3529 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
3530 return;
3531
3532 hci_dev_lock(hdev);
3533
3534 for (; num_rsp; num_rsp--, info++) {
3535 u32 flags;
3536 bool name_known;
3537
3538 bacpy(&data.bdaddr, &info->bdaddr);
3539 data.pscan_rep_mode = info->pscan_rep_mode;
3540 data.pscan_period_mode = info->pscan_period_mode;
3541 data.pscan_mode = 0x00;
3542 memcpy(data.dev_class, info->dev_class, 3);
3543 data.clock_offset = info->clock_offset;
3544 data.rssi = info->rssi;
3545 data.ssp_mode = 0x01;
3546
3547 if (test_bit(HCI_MGMT, &hdev->dev_flags))
3548 name_known = eir_has_data_type(info->data,
3549 sizeof(info->data),
3550 EIR_NAME_COMPLETE);
3551 else
3552 name_known = true;
3553
3554 flags = hci_inquiry_cache_update(hdev, &data, name_known);
3555
3556 eir_len = eir_get_length(info->data, sizeof(info->data));
3557
3558 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3559 info->dev_class, info->rssi,
3560 flags, info->data, eir_len, NULL, 0);
3561 }
3562
3563 hci_dev_unlock(hdev);
3564 }
3565
3566 static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
3567 struct sk_buff *skb)
3568 {
3569 struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
3570 struct hci_conn *conn;
3571
3572 BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status,
3573 __le16_to_cpu(ev->handle));
3574
3575 hci_dev_lock(hdev);
3576
3577 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3578 if (!conn)
3579 goto unlock;
3580
3581 /* For BR/EDR the necessary steps are taken through the
3582 * auth_complete event.
3583 */
3584 if (conn->type != LE_LINK)
3585 goto unlock;
3586
3587 if (!ev->status)
3588 conn->sec_level = conn->pending_sec_level;
3589
3590 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3591
3592 if (ev->status && conn->state == BT_CONNECTED) {
3593 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3594 hci_conn_drop(conn);
3595 goto unlock;
3596 }
3597
3598 if (conn->state == BT_CONFIG) {
3599 if (!ev->status)
3600 conn->state = BT_CONNECTED;
3601
3602 hci_proto_connect_cfm(conn, ev->status);
3603 hci_conn_drop(conn);
3604 } else {
3605 hci_auth_cfm(conn, ev->status);
3606
3607 hci_conn_hold(conn);
3608 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3609 hci_conn_drop(conn);
3610 }
3611
3612 unlock:
3613 hci_dev_unlock(hdev);
3614 }
3615
3616 static u8 hci_get_auth_req(struct hci_conn *conn)
3617 {
3618 /* If remote requests no-bonding follow that lead */
3619 if (conn->remote_auth == HCI_AT_NO_BONDING ||
3620 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
3621 return conn->remote_auth | (conn->auth_type & 0x01);
3622
3623 /* If both remote and local have enough IO capabilities, require
3624 * MITM protection
3625 */
3626 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
3627 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
3628 return conn->remote_auth | 0x01;
3629
3630 /* No MITM protection possible so ignore remote requirement */
3631 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
3632 }
3633
3634 static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3635 {
3636 struct hci_ev_io_capa_request *ev = (void *) skb->data;
3637 struct hci_conn *conn;
3638
3639 BT_DBG("%s", hdev->name);
3640
3641 hci_dev_lock(hdev);
3642
3643 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3644 if (!conn)
3645 goto unlock;
3646
3647 hci_conn_hold(conn);
3648
3649 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3650 goto unlock;
3651
3652 /* Allow pairing if we're pairable, the initiators of the
3653 * pairing or if the remote is not requesting bonding.
3654 */
3655 if (test_bit(HCI_BONDABLE, &hdev->dev_flags) ||
3656 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
3657 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
3658 struct hci_cp_io_capability_reply cp;
3659
3660 bacpy(&cp.bdaddr, &ev->bdaddr);
3661 /* Change the IO capability from KeyboardDisplay
3662 * to DisplayYesNo as it is not supported by BT spec. */
3663 cp.capability = (conn->io_capability == 0x04) ?
3664 HCI_IO_DISPLAY_YESNO : conn->io_capability;
3665
3666 /* If we are initiators, there is no remote information yet */
3667 if (conn->remote_auth == 0xff) {
3668 /* Request MITM protection if our IO caps allow it
3669 * except for the no-bonding case.
3670 */
3671 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
3672 conn->auth_type != HCI_AT_NO_BONDING)
3673 conn->auth_type |= 0x01;
3674 } else {
3675 conn->auth_type = hci_get_auth_req(conn);
3676 }
3677
3678 /* If we're not bondable, force one of the non-bondable
3679 * authentication requirement values.
3680 */
3681 if (!test_bit(HCI_BONDABLE, &hdev->dev_flags))
3682 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
3683
3684 cp.authentication = conn->auth_type;
3685
3686 if (hci_find_remote_oob_data(hdev, &conn->dst) &&
3687 (conn->out || test_bit(HCI_CONN_REMOTE_OOB, &conn->flags)))
3688 cp.oob_data = 0x01;
3689 else
3690 cp.oob_data = 0x00;
3691
3692 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
3693 sizeof(cp), &cp);
3694 } else {
3695 struct hci_cp_io_capability_neg_reply cp;
3696
3697 bacpy(&cp.bdaddr, &ev->bdaddr);
3698 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
3699
3700 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
3701 sizeof(cp), &cp);
3702 }
3703
3704 unlock:
3705 hci_dev_unlock(hdev);
3706 }
3707
3708 static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
3709 {
3710 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
3711 struct hci_conn *conn;
3712
3713 BT_DBG("%s", hdev->name);
3714
3715 hci_dev_lock(hdev);
3716
3717 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3718 if (!conn)
3719 goto unlock;
3720
3721 conn->remote_cap = ev->capability;
3722 conn->remote_auth = ev->authentication;
3723 if (ev->oob_data)
3724 set_bit(HCI_CONN_REMOTE_OOB, &conn->flags);
3725
3726 unlock:
3727 hci_dev_unlock(hdev);
3728 }
3729
3730 static void hci_user_confirm_request_evt(struct hci_dev *hdev,
3731 struct sk_buff *skb)
3732 {
3733 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
3734 int loc_mitm, rem_mitm, confirm_hint = 0;
3735 struct hci_conn *conn;
3736
3737 BT_DBG("%s", hdev->name);
3738
3739 hci_dev_lock(hdev);
3740
3741 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3742 goto unlock;
3743
3744 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3745 if (!conn)
3746 goto unlock;
3747
3748 loc_mitm = (conn->auth_type & 0x01);
3749 rem_mitm = (conn->remote_auth & 0x01);
3750
3751 /* If we require MITM but the remote device can't provide that
3752 * (it has NoInputNoOutput) then reject the confirmation
3753 * request. We check the security level here since it doesn't
3754 * necessarily match conn->auth_type.
3755 */
3756 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
3757 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
3758 BT_DBG("Rejecting request: remote device can't provide MITM");
3759 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
3760 sizeof(ev->bdaddr), &ev->bdaddr);
3761 goto unlock;
3762 }
3763
3764 /* If no side requires MITM protection; auto-accept */
3765 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
3766 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
3767
3768 /* If we're not the initiators request authorization to
3769 * proceed from user space (mgmt_user_confirm with
3770 * confirm_hint set to 1). The exception is if neither
3771 * side had MITM or if the local IO capability is
3772 * NoInputNoOutput, in which case we do auto-accept
3773 */
3774 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
3775 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
3776 (loc_mitm || rem_mitm)) {
3777 BT_DBG("Confirming auto-accept as acceptor");
3778 confirm_hint = 1;
3779 goto confirm;
3780 }
3781
3782 BT_DBG("Auto-accept of user confirmation with %ums delay",
3783 hdev->auto_accept_delay);
3784
3785 if (hdev->auto_accept_delay > 0) {
3786 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
3787 queue_delayed_work(conn->hdev->workqueue,
3788 &conn->auto_accept_work, delay);
3789 goto unlock;
3790 }
3791
3792 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
3793 sizeof(ev->bdaddr), &ev->bdaddr);
3794 goto unlock;
3795 }
3796
3797 confirm:
3798 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
3799 le32_to_cpu(ev->passkey), confirm_hint);
3800
3801 unlock:
3802 hci_dev_unlock(hdev);
3803 }
3804
3805 static void hci_user_passkey_request_evt(struct hci_dev *hdev,
3806 struct sk_buff *skb)
3807 {
3808 struct hci_ev_user_passkey_req *ev = (void *) skb->data;
3809
3810 BT_DBG("%s", hdev->name);
3811
3812 if (test_bit(HCI_MGMT, &hdev->dev_flags))
3813 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
3814 }
3815
3816 static void hci_user_passkey_notify_evt(struct hci_dev *hdev,
3817 struct sk_buff *skb)
3818 {
3819 struct hci_ev_user_passkey_notify *ev = (void *) skb->data;
3820 struct hci_conn *conn;
3821
3822 BT_DBG("%s", hdev->name);
3823
3824 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3825 if (!conn)
3826 return;
3827
3828 conn->passkey_notify = __le32_to_cpu(ev->passkey);
3829 conn->passkey_entered = 0;
3830
3831 if (test_bit(HCI_MGMT, &hdev->dev_flags))
3832 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
3833 conn->dst_type, conn->passkey_notify,
3834 conn->passkey_entered);
3835 }
3836
3837 static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
3838 {
3839 struct hci_ev_keypress_notify *ev = (void *) skb->data;
3840 struct hci_conn *conn;
3841
3842 BT_DBG("%s", hdev->name);
3843
3844 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3845 if (!conn)
3846 return;
3847
3848 switch (ev->type) {
3849 case HCI_KEYPRESS_STARTED:
3850 conn->passkey_entered = 0;
3851 return;
3852
3853 case HCI_KEYPRESS_ENTERED:
3854 conn->passkey_entered++;
3855 break;
3856
3857 case HCI_KEYPRESS_ERASED:
3858 conn->passkey_entered--;
3859 break;
3860
3861 case HCI_KEYPRESS_CLEARED:
3862 conn->passkey_entered = 0;
3863 break;
3864
3865 case HCI_KEYPRESS_COMPLETED:
3866 return;
3867 }
3868
3869 if (test_bit(HCI_MGMT, &hdev->dev_flags))
3870 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
3871 conn->dst_type, conn->passkey_notify,
3872 conn->passkey_entered);
3873 }
3874
3875 static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
3876 struct sk_buff *skb)
3877 {
3878 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
3879 struct hci_conn *conn;
3880
3881 BT_DBG("%s", hdev->name);
3882
3883 hci_dev_lock(hdev);
3884
3885 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3886 if (!conn)
3887 goto unlock;
3888
3889 /* Reset the authentication requirement to unknown */
3890 conn->remote_auth = 0xff;
3891
3892 /* To avoid duplicate auth_failed events to user space we check
3893 * the HCI_CONN_AUTH_PEND flag which will be set if we
3894 * initiated the authentication. A traditional auth_complete
3895 * event gets always produced as initiator and is also mapped to
3896 * the mgmt_auth_failed event */
3897 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
3898 mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type,
3899 ev->status);
3900
3901 hci_conn_drop(conn);
3902
3903 unlock:
3904 hci_dev_unlock(hdev);
3905 }
3906
3907 static void hci_remote_host_features_evt(struct hci_dev *hdev,
3908 struct sk_buff *skb)
3909 {
3910 struct hci_ev_remote_host_features *ev = (void *) skb->data;
3911 struct inquiry_entry *ie;
3912 struct hci_conn *conn;
3913
3914 BT_DBG("%s", hdev->name);
3915
3916 hci_dev_lock(hdev);
3917
3918 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3919 if (conn)
3920 memcpy(conn->features[1], ev->features, 8);
3921
3922 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3923 if (ie)
3924 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
3925
3926 hci_dev_unlock(hdev);
3927 }
3928
3929 static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
3930 struct sk_buff *skb)
3931 {
3932 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
3933 struct oob_data *data;
3934
3935 BT_DBG("%s", hdev->name);
3936
3937 hci_dev_lock(hdev);
3938
3939 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3940 goto unlock;
3941
3942 data = hci_find_remote_oob_data(hdev, &ev->bdaddr);
3943 if (data) {
3944 if (test_bit(HCI_SC_ENABLED, &hdev->dev_flags)) {
3945 struct hci_cp_remote_oob_ext_data_reply cp;
3946
3947 bacpy(&cp.bdaddr, &ev->bdaddr);
3948 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
3949 memcpy(cp.randomizer192, data->randomizer192,
3950 sizeof(cp.randomizer192));
3951 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
3952 memcpy(cp.randomizer256, data->randomizer256,
3953 sizeof(cp.randomizer256));
3954
3955 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
3956 sizeof(cp), &cp);
3957 } else {
3958 struct hci_cp_remote_oob_data_reply cp;
3959
3960 bacpy(&cp.bdaddr, &ev->bdaddr);
3961 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
3962 memcpy(cp.randomizer, data->randomizer192,
3963 sizeof(cp.randomizer));
3964
3965 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
3966 sizeof(cp), &cp);
3967 }
3968 } else {
3969 struct hci_cp_remote_oob_data_neg_reply cp;
3970
3971 bacpy(&cp.bdaddr, &ev->bdaddr);
3972 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
3973 sizeof(cp), &cp);
3974 }
3975
3976 unlock:
3977 hci_dev_unlock(hdev);
3978 }
3979
3980 static void hci_phy_link_complete_evt(struct hci_dev *hdev,
3981 struct sk_buff *skb)
3982 {
3983 struct hci_ev_phy_link_complete *ev = (void *) skb->data;
3984 struct hci_conn *hcon, *bredr_hcon;
3985
3986 BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
3987 ev->status);
3988
3989 hci_dev_lock(hdev);
3990
3991 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
3992 if (!hcon) {
3993 hci_dev_unlock(hdev);
3994 return;
3995 }
3996
3997 if (ev->status) {
3998 hci_conn_del(hcon);
3999 hci_dev_unlock(hdev);
4000 return;
4001 }
4002
4003 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
4004
4005 hcon->state = BT_CONNECTED;
4006 bacpy(&hcon->dst, &bredr_hcon->dst);
4007
4008 hci_conn_hold(hcon);
4009 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
4010 hci_conn_drop(hcon);
4011
4012 hci_conn_add_sysfs(hcon);
4013
4014 amp_physical_cfm(bredr_hcon, hcon);
4015
4016 hci_dev_unlock(hdev);
4017 }
4018
4019 static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4020 {
4021 struct hci_ev_logical_link_complete *ev = (void *) skb->data;
4022 struct hci_conn *hcon;
4023 struct hci_chan *hchan;
4024 struct amp_mgr *mgr;
4025
4026 BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
4027 hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
4028 ev->status);
4029
4030 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4031 if (!hcon)
4032 return;
4033
4034 /* Create AMP hchan */
4035 hchan = hci_chan_create(hcon);
4036 if (!hchan)
4037 return;
4038
4039 hchan->handle = le16_to_cpu(ev->handle);
4040
4041 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
4042
4043 mgr = hcon->amp_mgr;
4044 if (mgr && mgr->bredr_chan) {
4045 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
4046
4047 l2cap_chan_lock(bredr_chan);
4048
4049 bredr_chan->conn->mtu = hdev->block_mtu;
4050 l2cap_logical_cfm(bredr_chan, hchan, 0);
4051 hci_conn_hold(hcon);
4052
4053 l2cap_chan_unlock(bredr_chan);
4054 }
4055 }
4056
4057 static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
4058 struct sk_buff *skb)
4059 {
4060 struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
4061 struct hci_chan *hchan;
4062
4063 BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
4064 le16_to_cpu(ev->handle), ev->status);
4065
4066 if (ev->status)
4067 return;
4068
4069 hci_dev_lock(hdev);
4070
4071 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
4072 if (!hchan)
4073 goto unlock;
4074
4075 amp_destroy_logical_link(hchan, ev->reason);
4076
4077 unlock:
4078 hci_dev_unlock(hdev);
4079 }
4080
4081 static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
4082 struct sk_buff *skb)
4083 {
4084 struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
4085 struct hci_conn *hcon;
4086
4087 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4088
4089 if (ev->status)
4090 return;
4091
4092 hci_dev_lock(hdev);
4093
4094 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4095 if (hcon) {
4096 hcon->state = BT_CLOSED;
4097 hci_conn_del(hcon);
4098 }
4099
4100 hci_dev_unlock(hdev);
4101 }
4102
4103 static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4104 {
4105 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
4106 struct hci_conn_params *params;
4107 struct hci_conn *conn;
4108 struct smp_irk *irk;
4109 u8 addr_type;
4110
4111 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4112
4113 hci_dev_lock(hdev);
4114
4115 /* All controllers implicitly stop advertising in the event of a
4116 * connection, so ensure that the state bit is cleared.
4117 */
4118 clear_bit(HCI_LE_ADV, &hdev->dev_flags);
4119
4120 conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
4121 if (!conn) {
4122 conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr, ev->role);
4123 if (!conn) {
4124 BT_ERR("No memory for new connection");
4125 goto unlock;
4126 }
4127
4128 conn->dst_type = ev->bdaddr_type;
4129
4130 /* If we didn't have a hci_conn object previously
4131 * but we're in master role this must be something
4132 * initiated using a white list. Since white list based
4133 * connections are not "first class citizens" we don't
4134 * have full tracking of them. Therefore, we go ahead
4135 * with a "best effort" approach of determining the
4136 * initiator address based on the HCI_PRIVACY flag.
4137 */
4138 if (conn->out) {
4139 conn->resp_addr_type = ev->bdaddr_type;
4140 bacpy(&conn->resp_addr, &ev->bdaddr);
4141 if (test_bit(HCI_PRIVACY, &hdev->dev_flags)) {
4142 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
4143 bacpy(&conn->init_addr, &hdev->rpa);
4144 } else {
4145 hci_copy_identity_address(hdev,
4146 &conn->init_addr,
4147 &conn->init_addr_type);
4148 }
4149 }
4150 } else {
4151 cancel_delayed_work(&conn->le_conn_timeout);
4152 }
4153
4154 if (!conn->out) {
4155 /* Set the responder (our side) address type based on
4156 * the advertising address type.
4157 */
4158 conn->resp_addr_type = hdev->adv_addr_type;
4159 if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM)
4160 bacpy(&conn->resp_addr, &hdev->random_addr);
4161 else
4162 bacpy(&conn->resp_addr, &hdev->bdaddr);
4163
4164 conn->init_addr_type = ev->bdaddr_type;
4165 bacpy(&conn->init_addr, &ev->bdaddr);
4166
4167 /* For incoming connections, set the default minimum
4168 * and maximum connection interval. They will be used
4169 * to check if the parameters are in range and if not
4170 * trigger the connection update procedure.
4171 */
4172 conn->le_conn_min_interval = hdev->le_conn_min_interval;
4173 conn->le_conn_max_interval = hdev->le_conn_max_interval;
4174 }
4175
4176 /* Lookup the identity address from the stored connection
4177 * address and address type.
4178 *
4179 * When establishing connections to an identity address, the
4180 * connection procedure will store the resolvable random
4181 * address first. Now if it can be converted back into the
4182 * identity address, start using the identity address from
4183 * now on.
4184 */
4185 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
4186 if (irk) {
4187 bacpy(&conn->dst, &irk->bdaddr);
4188 conn->dst_type = irk->addr_type;
4189 }
4190
4191 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
4192 addr_type = BDADDR_LE_PUBLIC;
4193 else
4194 addr_type = BDADDR_LE_RANDOM;
4195
4196 if (ev->status) {
4197 hci_le_conn_failed(conn, ev->status);
4198 goto unlock;
4199 }
4200
4201 /* Drop the connection if the device is blocked */
4202 if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) {
4203 hci_conn_drop(conn);
4204 goto unlock;
4205 }
4206
4207 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4208 mgmt_device_connected(hdev, &conn->dst, conn->type,
4209 conn->dst_type, 0, NULL, 0, NULL);
4210
4211 conn->sec_level = BT_SECURITY_LOW;
4212 conn->handle = __le16_to_cpu(ev->handle);
4213 conn->state = BT_CONNECTED;
4214
4215 conn->le_conn_interval = le16_to_cpu(ev->interval);
4216 conn->le_conn_latency = le16_to_cpu(ev->latency);
4217 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4218
4219 hci_conn_add_sysfs(conn);
4220
4221 hci_proto_connect_cfm(conn, ev->status);
4222
4223 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
4224 if (params)
4225 list_del_init(&params->action);
4226
4227 unlock:
4228 hci_update_background_scan(hdev);
4229 hci_dev_unlock(hdev);
4230 }
4231
4232 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
4233 struct sk_buff *skb)
4234 {
4235 struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
4236 struct hci_conn *conn;
4237
4238 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4239
4240 if (ev->status)
4241 return;
4242
4243 hci_dev_lock(hdev);
4244
4245 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4246 if (conn) {
4247 conn->le_conn_interval = le16_to_cpu(ev->interval);
4248 conn->le_conn_latency = le16_to_cpu(ev->latency);
4249 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4250 }
4251
4252 hci_dev_unlock(hdev);
4253 }
4254
4255 /* This function requires the caller holds hdev->lock */
4256 static void check_pending_le_conn(struct hci_dev *hdev, bdaddr_t *addr,
4257 u8 addr_type, u8 adv_type)
4258 {
4259 struct hci_conn *conn;
4260 struct hci_conn_params *params;
4261
4262 /* If the event is not connectable don't proceed further */
4263 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
4264 return;
4265
4266 /* Ignore if the device is blocked */
4267 if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type))
4268 return;
4269
4270 /* Most controller will fail if we try to create new connections
4271 * while we have an existing one in slave role.
4272 */
4273 if (hdev->conn_hash.le_num_slave > 0)
4274 return;
4275
4276 /* If we're not connectable only connect devices that we have in
4277 * our pend_le_conns list.
4278 */
4279 params = hci_pend_le_action_lookup(&hdev->pend_le_conns,
4280 addr, addr_type);
4281 if (!params)
4282 return;
4283
4284 switch (params->auto_connect) {
4285 case HCI_AUTO_CONN_DIRECT:
4286 /* Only devices advertising with ADV_DIRECT_IND are
4287 * triggering a connection attempt. This is allowing
4288 * incoming connections from slave devices.
4289 */
4290 if (adv_type != LE_ADV_DIRECT_IND)
4291 return;
4292 break;
4293 case HCI_AUTO_CONN_ALWAYS:
4294 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
4295 * are triggering a connection attempt. This means
4296 * that incoming connectioms from slave device are
4297 * accepted and also outgoing connections to slave
4298 * devices are established when found.
4299 */
4300 break;
4301 default:
4302 return;
4303 }
4304
4305 conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
4306 HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER);
4307 if (!IS_ERR(conn))
4308 return;
4309
4310 switch (PTR_ERR(conn)) {
4311 case -EBUSY:
4312 /* If hci_connect() returns -EBUSY it means there is already
4313 * an LE connection attempt going on. Since controllers don't
4314 * support more than one connection attempt at the time, we
4315 * don't consider this an error case.
4316 */
4317 break;
4318 default:
4319 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
4320 }
4321 }
4322
4323 static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
4324 u8 bdaddr_type, s8 rssi, u8 *data, u8 len)
4325 {
4326 struct discovery_state *d = &hdev->discovery;
4327 struct smp_irk *irk;
4328 bool match;
4329 u32 flags;
4330
4331 /* Check if we need to convert to identity address */
4332 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
4333 if (irk) {
4334 bdaddr = &irk->bdaddr;
4335 bdaddr_type = irk->addr_type;
4336 }
4337
4338 /* Check if we have been requested to connect to this device */
4339 check_pending_le_conn(hdev, bdaddr, bdaddr_type, type);
4340
4341 /* Passive scanning shouldn't trigger any device found events,
4342 * except for devices marked as CONN_REPORT for which we do send
4343 * device found events.
4344 */
4345 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
4346 if (type == LE_ADV_DIRECT_IND)
4347 return;
4348
4349 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
4350 bdaddr, bdaddr_type))
4351 return;
4352
4353 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
4354 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4355 else
4356 flags = 0;
4357 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4358 rssi, flags, data, len, NULL, 0);
4359 return;
4360 }
4361
4362 /* When receiving non-connectable or scannable undirected
4363 * advertising reports, this means that the remote device is
4364 * not connectable and then clearly indicate this in the
4365 * device found event.
4366 *
4367 * When receiving a scan response, then there is no way to
4368 * know if the remote device is connectable or not. However
4369 * since scan responses are merged with a previously seen
4370 * advertising report, the flags field from that report
4371 * will be used.
4372 *
4373 * In the really unlikely case that a controller get confused
4374 * and just sends a scan response event, then it is marked as
4375 * not connectable as well.
4376 */
4377 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND ||
4378 type == LE_ADV_SCAN_RSP)
4379 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4380 else
4381 flags = 0;
4382
4383 /* If there's nothing pending either store the data from this
4384 * event or send an immediate device found event if the data
4385 * should not be stored for later.
4386 */
4387 if (!has_pending_adv_report(hdev)) {
4388 /* If the report will trigger a SCAN_REQ store it for
4389 * later merging.
4390 */
4391 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4392 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
4393 rssi, flags, data, len);
4394 return;
4395 }
4396
4397 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4398 rssi, flags, data, len, NULL, 0);
4399 return;
4400 }
4401
4402 /* Check if the pending report is for the same device as the new one */
4403 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
4404 bdaddr_type == d->last_adv_addr_type);
4405
4406 /* If the pending data doesn't match this report or this isn't a
4407 * scan response (e.g. we got a duplicate ADV_IND) then force
4408 * sending of the pending data.
4409 */
4410 if (type != LE_ADV_SCAN_RSP || !match) {
4411 /* Send out whatever is in the cache, but skip duplicates */
4412 if (!match)
4413 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
4414 d->last_adv_addr_type, NULL,
4415 d->last_adv_rssi, d->last_adv_flags,
4416 d->last_adv_data,
4417 d->last_adv_data_len, NULL, 0);
4418
4419 /* If the new report will trigger a SCAN_REQ store it for
4420 * later merging.
4421 */
4422 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4423 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
4424 rssi, flags, data, len);
4425 return;
4426 }
4427
4428 /* The advertising reports cannot be merged, so clear
4429 * the pending report and send out a device found event.
4430 */
4431 clear_pending_adv_report(hdev);
4432 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4433 rssi, flags, data, len, NULL, 0);
4434 return;
4435 }
4436
4437 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
4438 * the new event is a SCAN_RSP. We can therefore proceed with
4439 * sending a merged device found event.
4440 */
4441 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
4442 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
4443 d->last_adv_data, d->last_adv_data_len, data, len);
4444 clear_pending_adv_report(hdev);
4445 }
4446
4447 static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
4448 {
4449 u8 num_reports = skb->data[0];
4450 void *ptr = &skb->data[1];
4451
4452 hci_dev_lock(hdev);
4453
4454 while (num_reports--) {
4455 struct hci_ev_le_advertising_info *ev = ptr;
4456 s8 rssi;
4457
4458 rssi = ev->data[ev->length];
4459 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
4460 ev->bdaddr_type, rssi, ev->data, ev->length);
4461
4462 ptr += sizeof(*ev) + ev->length + 1;
4463 }
4464
4465 hci_dev_unlock(hdev);
4466 }
4467
4468 static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
4469 {
4470 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
4471 struct hci_cp_le_ltk_reply cp;
4472 struct hci_cp_le_ltk_neg_reply neg;
4473 struct hci_conn *conn;
4474 struct smp_ltk *ltk;
4475
4476 BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle));
4477
4478 hci_dev_lock(hdev);
4479
4480 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4481 if (conn == NULL)
4482 goto not_found;
4483
4484 ltk = hci_find_ltk(hdev, ev->ediv, ev->rand, conn->role);
4485 if (ltk == NULL)
4486 goto not_found;
4487
4488 memcpy(cp.ltk, ltk->val, sizeof(ltk->val));
4489 cp.handle = cpu_to_le16(conn->handle);
4490
4491 if (ltk->authenticated)
4492 conn->pending_sec_level = BT_SECURITY_HIGH;
4493 else
4494 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4495
4496 conn->enc_key_size = ltk->enc_size;
4497
4498 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
4499
4500 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
4501 * temporary key used to encrypt a connection following
4502 * pairing. It is used during the Encrypted Session Setup to
4503 * distribute the keys. Later, security can be re-established
4504 * using a distributed LTK.
4505 */
4506 if (ltk->type == SMP_STK) {
4507 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
4508 list_del(&ltk->list);
4509 kfree(ltk);
4510 } else {
4511 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
4512 }
4513
4514 hci_dev_unlock(hdev);
4515
4516 return;
4517
4518 not_found:
4519 neg.handle = ev->handle;
4520 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
4521 hci_dev_unlock(hdev);
4522 }
4523
4524 static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
4525 u8 reason)
4526 {
4527 struct hci_cp_le_conn_param_req_neg_reply cp;
4528
4529 cp.handle = cpu_to_le16(handle);
4530 cp.reason = reason;
4531
4532 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
4533 &cp);
4534 }
4535
4536 static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
4537 struct sk_buff *skb)
4538 {
4539 struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data;
4540 struct hci_cp_le_conn_param_req_reply cp;
4541 struct hci_conn *hcon;
4542 u16 handle, min, max, latency, timeout;
4543
4544 handle = le16_to_cpu(ev->handle);
4545 min = le16_to_cpu(ev->interval_min);
4546 max = le16_to_cpu(ev->interval_max);
4547 latency = le16_to_cpu(ev->latency);
4548 timeout = le16_to_cpu(ev->timeout);
4549
4550 hcon = hci_conn_hash_lookup_handle(hdev, handle);
4551 if (!hcon || hcon->state != BT_CONNECTED)
4552 return send_conn_param_neg_reply(hdev, handle,
4553 HCI_ERROR_UNKNOWN_CONN_ID);
4554
4555 if (hci_check_conn_params(min, max, latency, timeout))
4556 return send_conn_param_neg_reply(hdev, handle,
4557 HCI_ERROR_INVALID_LL_PARAMS);
4558
4559 if (hcon->role == HCI_ROLE_MASTER) {
4560 struct hci_conn_params *params;
4561 u8 store_hint;
4562
4563 hci_dev_lock(hdev);
4564
4565 params = hci_conn_params_lookup(hdev, &hcon->dst,
4566 hcon->dst_type);
4567 if (params) {
4568 params->conn_min_interval = min;
4569 params->conn_max_interval = max;
4570 params->conn_latency = latency;
4571 params->supervision_timeout = timeout;
4572 store_hint = 0x01;
4573 } else{
4574 store_hint = 0x00;
4575 }
4576
4577 hci_dev_unlock(hdev);
4578
4579 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
4580 store_hint, min, max, latency, timeout);
4581 }
4582
4583 cp.handle = ev->handle;
4584 cp.interval_min = ev->interval_min;
4585 cp.interval_max = ev->interval_max;
4586 cp.latency = ev->latency;
4587 cp.timeout = ev->timeout;
4588 cp.min_ce_len = 0;
4589 cp.max_ce_len = 0;
4590
4591 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
4592 }
4593
4594 static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
4595 {
4596 struct hci_ev_le_meta *le_ev = (void *) skb->data;
4597
4598 skb_pull(skb, sizeof(*le_ev));
4599
4600 switch (le_ev->subevent) {
4601 case HCI_EV_LE_CONN_COMPLETE:
4602 hci_le_conn_complete_evt(hdev, skb);
4603 break;
4604
4605 case HCI_EV_LE_CONN_UPDATE_COMPLETE:
4606 hci_le_conn_update_complete_evt(hdev, skb);
4607 break;
4608
4609 case HCI_EV_LE_ADVERTISING_REPORT:
4610 hci_le_adv_report_evt(hdev, skb);
4611 break;
4612
4613 case HCI_EV_LE_LTK_REQ:
4614 hci_le_ltk_request_evt(hdev, skb);
4615 break;
4616
4617 case HCI_EV_LE_REMOTE_CONN_PARAM_REQ:
4618 hci_le_remote_conn_param_req_evt(hdev, skb);
4619 break;
4620
4621 default:
4622 break;
4623 }
4624 }
4625
4626 static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
4627 {
4628 struct hci_ev_channel_selected *ev = (void *) skb->data;
4629 struct hci_conn *hcon;
4630
4631 BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);
4632
4633 skb_pull(skb, sizeof(*ev));
4634
4635 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4636 if (!hcon)
4637 return;
4638
4639 amp_read_loc_assoc_final_data(hdev, hcon);
4640 }
4641
4642 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
4643 {
4644 struct hci_event_hdr *hdr = (void *) skb->data;
4645 __u8 event = hdr->evt;
4646
4647 hci_dev_lock(hdev);
4648
4649 /* Received events are (currently) only needed when a request is
4650 * ongoing so avoid unnecessary memory allocation.
4651 */
4652 if (hci_req_pending(hdev)) {
4653 kfree_skb(hdev->recv_evt);
4654 hdev->recv_evt = skb_clone(skb, GFP_KERNEL);
4655 }
4656
4657 hci_dev_unlock(hdev);
4658
4659 skb_pull(skb, HCI_EVENT_HDR_SIZE);
4660
4661 if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) {
4662 struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
4663 u16 opcode = __le16_to_cpu(cmd_hdr->opcode);
4664
4665 hci_req_cmd_complete(hdev, opcode, 0);
4666 }
4667
4668 switch (event) {
4669 case HCI_EV_INQUIRY_COMPLETE:
4670 hci_inquiry_complete_evt(hdev, skb);
4671 break;
4672
4673 case HCI_EV_INQUIRY_RESULT:
4674 hci_inquiry_result_evt(hdev, skb);
4675 break;
4676
4677 case HCI_EV_CONN_COMPLETE:
4678 hci_conn_complete_evt(hdev, skb);
4679 break;
4680
4681 case HCI_EV_CONN_REQUEST:
4682 hci_conn_request_evt(hdev, skb);
4683 break;
4684
4685 case HCI_EV_DISCONN_COMPLETE:
4686 hci_disconn_complete_evt(hdev, skb);
4687 break;
4688
4689 case HCI_EV_AUTH_COMPLETE:
4690 hci_auth_complete_evt(hdev, skb);
4691 break;
4692
4693 case HCI_EV_REMOTE_NAME:
4694 hci_remote_name_evt(hdev, skb);
4695 break;
4696
4697 case HCI_EV_ENCRYPT_CHANGE:
4698 hci_encrypt_change_evt(hdev, skb);
4699 break;
4700
4701 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
4702 hci_change_link_key_complete_evt(hdev, skb);
4703 break;
4704
4705 case HCI_EV_REMOTE_FEATURES:
4706 hci_remote_features_evt(hdev, skb);
4707 break;
4708
4709 case HCI_EV_CMD_COMPLETE:
4710 hci_cmd_complete_evt(hdev, skb);
4711 break;
4712
4713 case HCI_EV_CMD_STATUS:
4714 hci_cmd_status_evt(hdev, skb);
4715 break;
4716
4717 case HCI_EV_ROLE_CHANGE:
4718 hci_role_change_evt(hdev, skb);
4719 break;
4720
4721 case HCI_EV_NUM_COMP_PKTS:
4722 hci_num_comp_pkts_evt(hdev, skb);
4723 break;
4724
4725 case HCI_EV_MODE_CHANGE:
4726 hci_mode_change_evt(hdev, skb);
4727 break;
4728
4729 case HCI_EV_PIN_CODE_REQ:
4730 hci_pin_code_request_evt(hdev, skb);
4731 break;
4732
4733 case HCI_EV_LINK_KEY_REQ:
4734 hci_link_key_request_evt(hdev, skb);
4735 break;
4736
4737 case HCI_EV_LINK_KEY_NOTIFY:
4738 hci_link_key_notify_evt(hdev, skb);
4739 break;
4740
4741 case HCI_EV_CLOCK_OFFSET:
4742 hci_clock_offset_evt(hdev, skb);
4743 break;
4744
4745 case HCI_EV_PKT_TYPE_CHANGE:
4746 hci_pkt_type_change_evt(hdev, skb);
4747 break;
4748
4749 case HCI_EV_PSCAN_REP_MODE:
4750 hci_pscan_rep_mode_evt(hdev, skb);
4751 break;
4752
4753 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
4754 hci_inquiry_result_with_rssi_evt(hdev, skb);
4755 break;
4756
4757 case HCI_EV_REMOTE_EXT_FEATURES:
4758 hci_remote_ext_features_evt(hdev, skb);
4759 break;
4760
4761 case HCI_EV_SYNC_CONN_COMPLETE:
4762 hci_sync_conn_complete_evt(hdev, skb);
4763 break;
4764
4765 case HCI_EV_EXTENDED_INQUIRY_RESULT:
4766 hci_extended_inquiry_result_evt(hdev, skb);
4767 break;
4768
4769 case HCI_EV_KEY_REFRESH_COMPLETE:
4770 hci_key_refresh_complete_evt(hdev, skb);
4771 break;
4772
4773 case HCI_EV_IO_CAPA_REQUEST:
4774 hci_io_capa_request_evt(hdev, skb);
4775 break;
4776
4777 case HCI_EV_IO_CAPA_REPLY:
4778 hci_io_capa_reply_evt(hdev, skb);
4779 break;
4780
4781 case HCI_EV_USER_CONFIRM_REQUEST:
4782 hci_user_confirm_request_evt(hdev, skb);
4783 break;
4784
4785 case HCI_EV_USER_PASSKEY_REQUEST:
4786 hci_user_passkey_request_evt(hdev, skb);
4787 break;
4788
4789 case HCI_EV_USER_PASSKEY_NOTIFY:
4790 hci_user_passkey_notify_evt(hdev, skb);
4791 break;
4792
4793 case HCI_EV_KEYPRESS_NOTIFY:
4794 hci_keypress_notify_evt(hdev, skb);
4795 break;
4796
4797 case HCI_EV_SIMPLE_PAIR_COMPLETE:
4798 hci_simple_pair_complete_evt(hdev, skb);
4799 break;
4800
4801 case HCI_EV_REMOTE_HOST_FEATURES:
4802 hci_remote_host_features_evt(hdev, skb);
4803 break;
4804
4805 case HCI_EV_LE_META:
4806 hci_le_meta_evt(hdev, skb);
4807 break;
4808
4809 case HCI_EV_CHANNEL_SELECTED:
4810 hci_chan_selected_evt(hdev, skb);
4811 break;
4812
4813 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
4814 hci_remote_oob_data_request_evt(hdev, skb);
4815 break;
4816
4817 case HCI_EV_PHY_LINK_COMPLETE:
4818 hci_phy_link_complete_evt(hdev, skb);
4819 break;
4820
4821 case HCI_EV_LOGICAL_LINK_COMPLETE:
4822 hci_loglink_complete_evt(hdev, skb);
4823 break;
4824
4825 case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
4826 hci_disconn_loglink_complete_evt(hdev, skb);
4827 break;
4828
4829 case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
4830 hci_disconn_phylink_complete_evt(hdev, skb);
4831 break;
4832
4833 case HCI_EV_NUM_COMP_BLOCKS:
4834 hci_num_comp_blocks_evt(hdev, skb);
4835 break;
4836
4837 default:
4838 BT_DBG("%s event 0x%2.2x", hdev->name, event);
4839 break;
4840 }
4841
4842 kfree_skb(skb);
4843 hdev->stat.evt_rx++;
4844 }
Linux kernel - Deliverables
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