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Btrfs: fix list transaction->pending_ordered corruption
[linux/fpc-iii.git] / net / bluetooth / hci_event.c
blobe5124a9ea6f66372b380e5de45c256f3355b138c
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 hci_bdaddr_list_clear(&hdev->le_white_list);
210 }
211
212 static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
213 {
214 __u8 status = *((__u8 *) skb->data);
215 void *sent;
216
217 BT_DBG("%s status 0x%2.2x", hdev->name, status);
218
219 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
220 if (!sent)
221 return;
222
223 hci_dev_lock(hdev);
224
225 if (test_bit(HCI_MGMT, &hdev->dev_flags))
226 mgmt_set_local_name_complete(hdev, sent, status);
227 else if (!status)
228 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
229
230 hci_dev_unlock(hdev);
231 }
232
233 static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
234 {
235 struct hci_rp_read_local_name *rp = (void *) skb->data;
236
237 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
238
239 if (rp->status)
240 return;
241
242 if (test_bit(HCI_SETUP, &hdev->dev_flags) ||
243 test_bit(HCI_CONFIG, &hdev->dev_flags))
244 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
245 }
246
247 static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
248 {
249 __u8 status = *((__u8 *) skb->data);
250 void *sent;
251
252 BT_DBG("%s status 0x%2.2x", hdev->name, status);
253
254 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
255 if (!sent)
256 return;
257
258 if (!status) {
259 __u8 param = *((__u8 *) sent);
260
261 if (param == AUTH_ENABLED)
262 set_bit(HCI_AUTH, &hdev->flags);
263 else
264 clear_bit(HCI_AUTH, &hdev->flags);
265 }
266
267 if (test_bit(HCI_MGMT, &hdev->dev_flags))
268 mgmt_auth_enable_complete(hdev, status);
269 }
270
271 static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
272 {
273 __u8 status = *((__u8 *) skb->data);
274 __u8 param;
275 void *sent;
276
277 BT_DBG("%s status 0x%2.2x", hdev->name, status);
278
279 if (status)
280 return;
281
282 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
283 if (!sent)
284 return;
285
286 param = *((__u8 *) sent);
287
288 if (param)
289 set_bit(HCI_ENCRYPT, &hdev->flags);
290 else
291 clear_bit(HCI_ENCRYPT, &hdev->flags);
292 }
293
294 static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
295 {
296 __u8 status = *((__u8 *) skb->data);
297 __u8 param;
298 void *sent;
299
300 BT_DBG("%s status 0x%2.2x", hdev->name, status);
301
302 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
303 if (!sent)
304 return;
305
306 param = *((__u8 *) sent);
307
308 hci_dev_lock(hdev);
309
310 if (status) {
311 hdev->discov_timeout = 0;
312 goto done;
313 }
314
315 if (param & SCAN_INQUIRY)
316 set_bit(HCI_ISCAN, &hdev->flags);
317 else
318 clear_bit(HCI_ISCAN, &hdev->flags);
319
320 if (param & SCAN_PAGE)
321 set_bit(HCI_PSCAN, &hdev->flags);
322 else
323 clear_bit(HCI_PSCAN, &hdev->flags);
324
325 done:
326 hci_dev_unlock(hdev);
327 }
328
329 static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
330 {
331 struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
332
333 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
334
335 if (rp->status)
336 return;
337
338 memcpy(hdev->dev_class, rp->dev_class, 3);
339
340 BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
341 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
342 }
343
344 static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
345 {
346 __u8 status = *((__u8 *) skb->data);
347 void *sent;
348
349 BT_DBG("%s status 0x%2.2x", hdev->name, status);
350
351 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
352 if (!sent)
353 return;
354
355 hci_dev_lock(hdev);
356
357 if (status == 0)
358 memcpy(hdev->dev_class, sent, 3);
359
360 if (test_bit(HCI_MGMT, &hdev->dev_flags))
361 mgmt_set_class_of_dev_complete(hdev, sent, status);
362
363 hci_dev_unlock(hdev);
364 }
365
366 static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
367 {
368 struct hci_rp_read_voice_setting *rp = (void *) skb->data;
369 __u16 setting;
370
371 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
372
373 if (rp->status)
374 return;
375
376 setting = __le16_to_cpu(rp->voice_setting);
377
378 if (hdev->voice_setting == setting)
379 return;
380
381 hdev->voice_setting = setting;
382
383 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
384
385 if (hdev->notify)
386 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
387 }
388
389 static void hci_cc_write_voice_setting(struct hci_dev *hdev,
390 struct sk_buff *skb)
391 {
392 __u8 status = *((__u8 *) skb->data);
393 __u16 setting;
394 void *sent;
395
396 BT_DBG("%s status 0x%2.2x", hdev->name, status);
397
398 if (status)
399 return;
400
401 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
402 if (!sent)
403 return;
404
405 setting = get_unaligned_le16(sent);
406
407 if (hdev->voice_setting == setting)
408 return;
409
410 hdev->voice_setting = setting;
411
412 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
413
414 if (hdev->notify)
415 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
416 }
417
418 static void hci_cc_read_num_supported_iac(struct hci_dev *hdev,
419 struct sk_buff *skb)
420 {
421 struct hci_rp_read_num_supported_iac *rp = (void *) skb->data;
422
423 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
424
425 if (rp->status)
426 return;
427
428 hdev->num_iac = rp->num_iac;
429
430 BT_DBG("%s num iac %d", hdev->name, hdev->num_iac);
431 }
432
433 static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
434 {
435 __u8 status = *((__u8 *) skb->data);
436 struct hci_cp_write_ssp_mode *sent;
437
438 BT_DBG("%s status 0x%2.2x", hdev->name, status);
439
440 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
441 if (!sent)
442 return;
443
444 if (!status) {
445 if (sent->mode)
446 hdev->features[1][0] |= LMP_HOST_SSP;
447 else
448 hdev->features[1][0] &= ~LMP_HOST_SSP;
449 }
450
451 if (test_bit(HCI_MGMT, &hdev->dev_flags))
452 mgmt_ssp_enable_complete(hdev, sent->mode, status);
453 else if (!status) {
454 if (sent->mode)
455 set_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
456 else
457 clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
458 }
459 }
460
461 static void hci_cc_write_sc_support(struct hci_dev *hdev, struct sk_buff *skb)
462 {
463 u8 status = *((u8 *) skb->data);
464 struct hci_cp_write_sc_support *sent;
465
466 BT_DBG("%s status 0x%2.2x", hdev->name, status);
467
468 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
469 if (!sent)
470 return;
471
472 if (!status) {
473 if (sent->support)
474 hdev->features[1][0] |= LMP_HOST_SC;
475 else
476 hdev->features[1][0] &= ~LMP_HOST_SC;
477 }
478
479 if (test_bit(HCI_MGMT, &hdev->dev_flags))
480 mgmt_sc_enable_complete(hdev, sent->support, status);
481 else if (!status) {
482 if (sent->support)
483 set_bit(HCI_SC_ENABLED, &hdev->dev_flags);
484 else
485 clear_bit(HCI_SC_ENABLED, &hdev->dev_flags);
486 }
487 }
488
489 static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
490 {
491 struct hci_rp_read_local_version *rp = (void *) skb->data;
492
493 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
494
495 if (rp->status)
496 return;
497
498 if (test_bit(HCI_SETUP, &hdev->dev_flags) ||
499 test_bit(HCI_CONFIG, &hdev->dev_flags)) {
500 hdev->hci_ver = rp->hci_ver;
501 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
502 hdev->lmp_ver = rp->lmp_ver;
503 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
504 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
505 }
506 }
507
508 static void hci_cc_read_local_commands(struct hci_dev *hdev,
509 struct sk_buff *skb)
510 {
511 struct hci_rp_read_local_commands *rp = (void *) skb->data;
512
513 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
514
515 if (rp->status)
516 return;
517
518 if (test_bit(HCI_SETUP, &hdev->dev_flags) ||
519 test_bit(HCI_CONFIG, &hdev->dev_flags))
520 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
521 }
522
523 static void hci_cc_read_local_features(struct hci_dev *hdev,
524 struct sk_buff *skb)
525 {
526 struct hci_rp_read_local_features *rp = (void *) skb->data;
527
528 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
529
530 if (rp->status)
531 return;
532
533 memcpy(hdev->features, rp->features, 8);
534
535 /* Adjust default settings according to features
536 * supported by device. */
537
538 if (hdev->features[0][0] & LMP_3SLOT)
539 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
540
541 if (hdev->features[0][0] & LMP_5SLOT)
542 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
543
544 if (hdev->features[0][1] & LMP_HV2) {
545 hdev->pkt_type |= (HCI_HV2);
546 hdev->esco_type |= (ESCO_HV2);
547 }
548
549 if (hdev->features[0][1] & LMP_HV3) {
550 hdev->pkt_type |= (HCI_HV3);
551 hdev->esco_type |= (ESCO_HV3);
552 }
553
554 if (lmp_esco_capable(hdev))
555 hdev->esco_type |= (ESCO_EV3);
556
557 if (hdev->features[0][4] & LMP_EV4)
558 hdev->esco_type |= (ESCO_EV4);
559
560 if (hdev->features[0][4] & LMP_EV5)
561 hdev->esco_type |= (ESCO_EV5);
562
563 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
564 hdev->esco_type |= (ESCO_2EV3);
565
566 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
567 hdev->esco_type |= (ESCO_3EV3);
568
569 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
570 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
571 }
572
573 static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
574 struct sk_buff *skb)
575 {
576 struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
577
578 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
579
580 if (rp->status)
581 return;
582
583 if (hdev->max_page < rp->max_page)
584 hdev->max_page = rp->max_page;
585
586 if (rp->page < HCI_MAX_PAGES)
587 memcpy(hdev->features[rp->page], rp->features, 8);
588 }
589
590 static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
591 struct sk_buff *skb)
592 {
593 struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
594
595 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
596
597 if (rp->status)
598 return;
599
600 hdev->flow_ctl_mode = rp->mode;
601 }
602
603 static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
604 {
605 struct hci_rp_read_buffer_size *rp = (void *) skb->data;
606
607 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
608
609 if (rp->status)
610 return;
611
612 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
613 hdev->sco_mtu = rp->sco_mtu;
614 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
615 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
616
617 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
618 hdev->sco_mtu = 64;
619 hdev->sco_pkts = 8;
620 }
621
622 hdev->acl_cnt = hdev->acl_pkts;
623 hdev->sco_cnt = hdev->sco_pkts;
624
625 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
626 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
627 }
628
629 static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
630 {
631 struct hci_rp_read_bd_addr *rp = (void *) skb->data;
632
633 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
634
635 if (rp->status)
636 return;
637
638 if (test_bit(HCI_INIT, &hdev->flags))
639 bacpy(&hdev->bdaddr, &rp->bdaddr);
640
641 if (test_bit(HCI_SETUP, &hdev->dev_flags))
642 bacpy(&hdev->setup_addr, &rp->bdaddr);
643 }
644
645 static void hci_cc_read_page_scan_activity(struct hci_dev *hdev,
646 struct sk_buff *skb)
647 {
648 struct hci_rp_read_page_scan_activity *rp = (void *) skb->data;
649
650 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
651
652 if (rp->status)
653 return;
654
655 if (test_bit(HCI_INIT, &hdev->flags)) {
656 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
657 hdev->page_scan_window = __le16_to_cpu(rp->window);
658 }
659 }
660
661 static void hci_cc_write_page_scan_activity(struct hci_dev *hdev,
662 struct sk_buff *skb)
663 {
664 u8 status = *((u8 *) skb->data);
665 struct hci_cp_write_page_scan_activity *sent;
666
667 BT_DBG("%s status 0x%2.2x", hdev->name, status);
668
669 if (status)
670 return;
671
672 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
673 if (!sent)
674 return;
675
676 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
677 hdev->page_scan_window = __le16_to_cpu(sent->window);
678 }
679
680 static void hci_cc_read_page_scan_type(struct hci_dev *hdev,
681 struct sk_buff *skb)
682 {
683 struct hci_rp_read_page_scan_type *rp = (void *) skb->data;
684
685 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
686
687 if (rp->status)
688 return;
689
690 if (test_bit(HCI_INIT, &hdev->flags))
691 hdev->page_scan_type = rp->type;
692 }
693
694 static void hci_cc_write_page_scan_type(struct hci_dev *hdev,
695 struct sk_buff *skb)
696 {
697 u8 status = *((u8 *) skb->data);
698 u8 *type;
699
700 BT_DBG("%s status 0x%2.2x", hdev->name, status);
701
702 if (status)
703 return;
704
705 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
706 if (type)
707 hdev->page_scan_type = *type;
708 }
709
710 static void hci_cc_read_data_block_size(struct hci_dev *hdev,
711 struct sk_buff *skb)
712 {
713 struct hci_rp_read_data_block_size *rp = (void *) skb->data;
714
715 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
716
717 if (rp->status)
718 return;
719
720 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
721 hdev->block_len = __le16_to_cpu(rp->block_len);
722 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
723
724 hdev->block_cnt = hdev->num_blocks;
725
726 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
727 hdev->block_cnt, hdev->block_len);
728 }
729
730 static void hci_cc_read_clock(struct hci_dev *hdev, struct sk_buff *skb)
731 {
732 struct hci_rp_read_clock *rp = (void *) skb->data;
733 struct hci_cp_read_clock *cp;
734 struct hci_conn *conn;
735
736 BT_DBG("%s", hdev->name);
737
738 if (skb->len < sizeof(*rp))
739 return;
740
741 if (rp->status)
742 return;
743
744 hci_dev_lock(hdev);
745
746 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
747 if (!cp)
748 goto unlock;
749
750 if (cp->which == 0x00) {
751 hdev->clock = le32_to_cpu(rp->clock);
752 goto unlock;
753 }
754
755 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
756 if (conn) {
757 conn->clock = le32_to_cpu(rp->clock);
758 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
759 }
760
761 unlock:
762 hci_dev_unlock(hdev);
763 }
764
765 static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
766 struct sk_buff *skb)
767 {
768 struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
769
770 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
771
772 if (rp->status)
773 goto a2mp_rsp;
774
775 hdev->amp_status = rp->amp_status;
776 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
777 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
778 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
779 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
780 hdev->amp_type = rp->amp_type;
781 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
782 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
783 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
784 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
785
786 a2mp_rsp:
787 a2mp_send_getinfo_rsp(hdev);
788 }
789
790 static void hci_cc_read_local_amp_assoc(struct hci_dev *hdev,
791 struct sk_buff *skb)
792 {
793 struct hci_rp_read_local_amp_assoc *rp = (void *) skb->data;
794 struct amp_assoc *assoc = &hdev->loc_assoc;
795 size_t rem_len, frag_len;
796
797 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
798
799 if (rp->status)
800 goto a2mp_rsp;
801
802 frag_len = skb->len - sizeof(*rp);
803 rem_len = __le16_to_cpu(rp->rem_len);
804
805 if (rem_len > frag_len) {
806 BT_DBG("frag_len %zu rem_len %zu", frag_len, rem_len);
807
808 memcpy(assoc->data + assoc->offset, rp->frag, frag_len);
809 assoc->offset += frag_len;
810
811 /* Read other fragments */
812 amp_read_loc_assoc_frag(hdev, rp->phy_handle);
813
814 return;
815 }
816
817 memcpy(assoc->data + assoc->offset, rp->frag, rem_len);
818 assoc->len = assoc->offset + rem_len;
819 assoc->offset = 0;
820
821 a2mp_rsp:
822 /* Send A2MP Rsp when all fragments are received */
823 a2mp_send_getampassoc_rsp(hdev, rp->status);
824 a2mp_send_create_phy_link_req(hdev, rp->status);
825 }
826
827 static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
828 struct sk_buff *skb)
829 {
830 struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data;
831
832 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
833
834 if (rp->status)
835 return;
836
837 hdev->inq_tx_power = rp->tx_power;
838 }
839
840 static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
841 {
842 struct hci_rp_pin_code_reply *rp = (void *) skb->data;
843 struct hci_cp_pin_code_reply *cp;
844 struct hci_conn *conn;
845
846 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
847
848 hci_dev_lock(hdev);
849
850 if (test_bit(HCI_MGMT, &hdev->dev_flags))
851 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
852
853 if (rp->status)
854 goto unlock;
855
856 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
857 if (!cp)
858 goto unlock;
859
860 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
861 if (conn)
862 conn->pin_length = cp->pin_len;
863
864 unlock:
865 hci_dev_unlock(hdev);
866 }
867
868 static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
869 {
870 struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
871
872 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
873
874 hci_dev_lock(hdev);
875
876 if (test_bit(HCI_MGMT, &hdev->dev_flags))
877 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
878 rp->status);
879
880 hci_dev_unlock(hdev);
881 }
882
883 static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
884 struct sk_buff *skb)
885 {
886 struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
887
888 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
889
890 if (rp->status)
891 return;
892
893 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
894 hdev->le_pkts = rp->le_max_pkt;
895
896 hdev->le_cnt = hdev->le_pkts;
897
898 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
899 }
900
901 static void hci_cc_le_read_local_features(struct hci_dev *hdev,
902 struct sk_buff *skb)
903 {
904 struct hci_rp_le_read_local_features *rp = (void *) skb->data;
905
906 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
907
908 if (rp->status)
909 return;
910
911 memcpy(hdev->le_features, rp->features, 8);
912 }
913
914 static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
915 struct sk_buff *skb)
916 {
917 struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data;
918
919 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
920
921 if (rp->status)
922 return;
923
924 hdev->adv_tx_power = rp->tx_power;
925 }
926
927 static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
928 {
929 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
930
931 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
932
933 hci_dev_lock(hdev);
934
935 if (test_bit(HCI_MGMT, &hdev->dev_flags))
936 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
937 rp->status);
938
939 hci_dev_unlock(hdev);
940 }
941
942 static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
943 struct sk_buff *skb)
944 {
945 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
946
947 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
948
949 hci_dev_lock(hdev);
950
951 if (test_bit(HCI_MGMT, &hdev->dev_flags))
952 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
953 ACL_LINK, 0, rp->status);
954
955 hci_dev_unlock(hdev);
956 }
957
958 static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
959 {
960 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
961
962 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
963
964 hci_dev_lock(hdev);
965
966 if (test_bit(HCI_MGMT, &hdev->dev_flags))
967 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
968 0, rp->status);
969
970 hci_dev_unlock(hdev);
971 }
972
973 static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
974 struct sk_buff *skb)
975 {
976 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
977
978 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
979
980 hci_dev_lock(hdev);
981
982 if (test_bit(HCI_MGMT, &hdev->dev_flags))
983 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
984 ACL_LINK, 0, rp->status);
985
986 hci_dev_unlock(hdev);
987 }
988
989 static void hci_cc_read_local_oob_data(struct hci_dev *hdev,
990 struct sk_buff *skb)
991 {
992 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
993
994 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
995
996 hci_dev_lock(hdev);
997 mgmt_read_local_oob_data_complete(hdev, rp->hash, rp->randomizer,
998 NULL, NULL, rp->status);
999 hci_dev_unlock(hdev);
1000 }
1001
1002 static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
1003 struct sk_buff *skb)
1004 {
1005 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
1006
1007 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1008
1009 hci_dev_lock(hdev);
1010 mgmt_read_local_oob_data_complete(hdev, rp->hash192, rp->randomizer192,
1011 rp->hash256, rp->randomizer256,
1012 rp->status);
1013 hci_dev_unlock(hdev);
1014 }
1015
1016
1017 static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb)
1018 {
1019 __u8 status = *((__u8 *) skb->data);
1020 bdaddr_t *sent;
1021
1022 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1023
1024 if (status)
1025 return;
1026
1027 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1028 if (!sent)
1029 return;
1030
1031 hci_dev_lock(hdev);
1032
1033 bacpy(&hdev->random_addr, sent);
1034
1035 hci_dev_unlock(hdev);
1036 }
1037
1038 static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
1039 {
1040 __u8 *sent, status = *((__u8 *) skb->data);
1041
1042 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1043
1044 if (status)
1045 return;
1046
1047 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1048 if (!sent)
1049 return;
1050
1051 hci_dev_lock(hdev);
1052
1053 /* If we're doing connection initation as peripheral. Set a
1054 * timeout in case something goes wrong.
1055 */
1056 if (*sent) {
1057 struct hci_conn *conn;
1058
1059 set_bit(HCI_LE_ADV, &hdev->dev_flags);
1060
1061 conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
1062 if (conn)
1063 queue_delayed_work(hdev->workqueue,
1064 &conn->le_conn_timeout,
1065 conn->conn_timeout);
1066 } else {
1067 clear_bit(HCI_LE_ADV, &hdev->dev_flags);
1068 }
1069
1070 hci_dev_unlock(hdev);
1071 }
1072
1073 static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
1074 {
1075 struct hci_cp_le_set_scan_param *cp;
1076 __u8 status = *((__u8 *) skb->data);
1077
1078 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1079
1080 if (status)
1081 return;
1082
1083 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1084 if (!cp)
1085 return;
1086
1087 hci_dev_lock(hdev);
1088
1089 hdev->le_scan_type = cp->type;
1090
1091 hci_dev_unlock(hdev);
1092 }
1093
1094 static bool has_pending_adv_report(struct hci_dev *hdev)
1095 {
1096 struct discovery_state *d = &hdev->discovery;
1097
1098 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1099 }
1100
1101 static void clear_pending_adv_report(struct hci_dev *hdev)
1102 {
1103 struct discovery_state *d = &hdev->discovery;
1104
1105 bacpy(&d->last_adv_addr, BDADDR_ANY);
1106 d->last_adv_data_len = 0;
1107 }
1108
1109 static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
1110 u8 bdaddr_type, s8 rssi, u32 flags,
1111 u8 *data, u8 len)
1112 {
1113 struct discovery_state *d = &hdev->discovery;
1114
1115 bacpy(&d->last_adv_addr, bdaddr);
1116 d->last_adv_addr_type = bdaddr_type;
1117 d->last_adv_rssi = rssi;
1118 d->last_adv_flags = flags;
1119 memcpy(d->last_adv_data, data, len);
1120 d->last_adv_data_len = len;
1121 }
1122
1123 static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
1124 struct sk_buff *skb)
1125 {
1126 struct hci_cp_le_set_scan_enable *cp;
1127 __u8 status = *((__u8 *) skb->data);
1128
1129 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1130
1131 if (status)
1132 return;
1133
1134 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1135 if (!cp)
1136 return;
1137
1138 switch (cp->enable) {
1139 case LE_SCAN_ENABLE:
1140 set_bit(HCI_LE_SCAN, &hdev->dev_flags);
1141 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1142 clear_pending_adv_report(hdev);
1143 break;
1144
1145 case LE_SCAN_DISABLE:
1146 /* We do this here instead of when setting DISCOVERY_STOPPED
1147 * since the latter would potentially require waiting for
1148 * inquiry to stop too.
1149 */
1150 if (has_pending_adv_report(hdev)) {
1151 struct discovery_state *d = &hdev->discovery;
1152
1153 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
1154 d->last_adv_addr_type, NULL,
1155 d->last_adv_rssi, d->last_adv_flags,
1156 d->last_adv_data,
1157 d->last_adv_data_len, NULL, 0);
1158 }
1159
1160 /* Cancel this timer so that we don't try to disable scanning
1161 * when it's already disabled.
1162 */
1163 cancel_delayed_work(&hdev->le_scan_disable);
1164
1165 clear_bit(HCI_LE_SCAN, &hdev->dev_flags);
1166
1167 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1168 * interrupted scanning due to a connect request. Mark
1169 * therefore discovery as stopped. If this was not
1170 * because of a connect request advertising might have
1171 * been disabled because of active scanning, so
1172 * re-enable it again if necessary.
1173 */
1174 if (test_and_clear_bit(HCI_LE_SCAN_INTERRUPTED,
1175 &hdev->dev_flags))
1176 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1177 else if (!test_bit(HCI_LE_ADV, &hdev->dev_flags) &&
1178 hdev->discovery.state == DISCOVERY_FINDING)
1179 mgmt_reenable_advertising(hdev);
1180
1181 break;
1182
1183 default:
1184 BT_ERR("Used reserved LE_Scan_Enable param %d", cp->enable);
1185 break;
1186 }
1187 }
1188
1189 static void hci_cc_le_read_white_list_size(struct hci_dev *hdev,
1190 struct sk_buff *skb)
1191 {
1192 struct hci_rp_le_read_white_list_size *rp = (void *) skb->data;
1193
1194 BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
1195
1196 if (rp->status)
1197 return;
1198
1199 hdev->le_white_list_size = rp->size;
1200 }
1201
1202 static void hci_cc_le_clear_white_list(struct hci_dev *hdev,
1203 struct sk_buff *skb)
1204 {
1205 __u8 status = *((__u8 *) skb->data);
1206
1207 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1208
1209 if (status)
1210 return;
1211
1212 hci_bdaddr_list_clear(&hdev->le_white_list);
1213 }
1214
1215 static void hci_cc_le_add_to_white_list(struct hci_dev *hdev,
1216 struct sk_buff *skb)
1217 {
1218 struct hci_cp_le_add_to_white_list *sent;
1219 __u8 status = *((__u8 *) skb->data);
1220
1221 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1222
1223 if (status)
1224 return;
1225
1226 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST);
1227 if (!sent)
1228 return;
1229
1230 hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr,
1231 sent->bdaddr_type);
1232 }
1233
1234 static void hci_cc_le_del_from_white_list(struct hci_dev *hdev,
1235 struct sk_buff *skb)
1236 {
1237 struct hci_cp_le_del_from_white_list *sent;
1238 __u8 status = *((__u8 *) skb->data);
1239
1240 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1241
1242 if (status)
1243 return;
1244
1245 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST);
1246 if (!sent)
1247 return;
1248
1249 hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr,
1250 sent->bdaddr_type);
1251 }
1252
1253 static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
1254 struct sk_buff *skb)
1255 {
1256 struct hci_rp_le_read_supported_states *rp = (void *) skb->data;
1257
1258 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1259
1260 if (rp->status)
1261 return;
1262
1263 memcpy(hdev->le_states, rp->le_states, 8);
1264 }
1265
1266 static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
1267 struct sk_buff *skb)
1268 {
1269 struct hci_cp_write_le_host_supported *sent;
1270 __u8 status = *((__u8 *) skb->data);
1271
1272 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1273
1274 if (status)
1275 return;
1276
1277 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
1278 if (!sent)
1279 return;
1280
1281 if (sent->le) {
1282 hdev->features[1][0] |= LMP_HOST_LE;
1283 set_bit(HCI_LE_ENABLED, &hdev->dev_flags);
1284 } else {
1285 hdev->features[1][0] &= ~LMP_HOST_LE;
1286 clear_bit(HCI_LE_ENABLED, &hdev->dev_flags);
1287 clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
1288 }
1289
1290 if (sent->simul)
1291 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
1292 else
1293 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
1294 }
1295
1296 static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
1297 {
1298 struct hci_cp_le_set_adv_param *cp;
1299 u8 status = *((u8 *) skb->data);
1300
1301 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1302
1303 if (status)
1304 return;
1305
1306 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
1307 if (!cp)
1308 return;
1309
1310 hci_dev_lock(hdev);
1311 hdev->adv_addr_type = cp->own_address_type;
1312 hci_dev_unlock(hdev);
1313 }
1314
1315 static void hci_cc_write_remote_amp_assoc(struct hci_dev *hdev,
1316 struct sk_buff *skb)
1317 {
1318 struct hci_rp_write_remote_amp_assoc *rp = (void *) skb->data;
1319
1320 BT_DBG("%s status 0x%2.2x phy_handle 0x%2.2x",
1321 hdev->name, rp->status, rp->phy_handle);
1322
1323 if (rp->status)
1324 return;
1325
1326 amp_write_rem_assoc_continue(hdev, rp->phy_handle);
1327 }
1328
1329 static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
1330 {
1331 struct hci_rp_read_rssi *rp = (void *) skb->data;
1332 struct hci_conn *conn;
1333
1334 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1335
1336 if (rp->status)
1337 return;
1338
1339 hci_dev_lock(hdev);
1340
1341 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1342 if (conn)
1343 conn->rssi = rp->rssi;
1344
1345 hci_dev_unlock(hdev);
1346 }
1347
1348 static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb)
1349 {
1350 struct hci_cp_read_tx_power *sent;
1351 struct hci_rp_read_tx_power *rp = (void *) skb->data;
1352 struct hci_conn *conn;
1353
1354 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1355
1356 if (rp->status)
1357 return;
1358
1359 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
1360 if (!sent)
1361 return;
1362
1363 hci_dev_lock(hdev);
1364
1365 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1366 if (!conn)
1367 goto unlock;
1368
1369 switch (sent->type) {
1370 case 0x00:
1371 conn->tx_power = rp->tx_power;
1372 break;
1373 case 0x01:
1374 conn->max_tx_power = rp->tx_power;
1375 break;
1376 }
1377
1378 unlock:
1379 hci_dev_unlock(hdev);
1380 }
1381
1382 static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
1383 {
1384 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1385
1386 if (status) {
1387 hci_conn_check_pending(hdev);
1388 return;
1389 }
1390
1391 set_bit(HCI_INQUIRY, &hdev->flags);
1392 }
1393
1394 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
1395 {
1396 struct hci_cp_create_conn *cp;
1397 struct hci_conn *conn;
1398
1399 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1400
1401 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
1402 if (!cp)
1403 return;
1404
1405 hci_dev_lock(hdev);
1406
1407 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1408
1409 BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn);
1410
1411 if (status) {
1412 if (conn && conn->state == BT_CONNECT) {
1413 if (status != 0x0c || conn->attempt > 2) {
1414 conn->state = BT_CLOSED;
1415 hci_proto_connect_cfm(conn, status);
1416 hci_conn_del(conn);
1417 } else
1418 conn->state = BT_CONNECT2;
1419 }
1420 } else {
1421 if (!conn) {
1422 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
1423 HCI_ROLE_MASTER);
1424 if (!conn)
1425 BT_ERR("No memory for new connection");
1426 }
1427 }
1428
1429 hci_dev_unlock(hdev);
1430 }
1431
1432 static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1433 {
1434 struct hci_cp_add_sco *cp;
1435 struct hci_conn *acl, *sco;
1436 __u16 handle;
1437
1438 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1439
1440 if (!status)
1441 return;
1442
1443 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
1444 if (!cp)
1445 return;
1446
1447 handle = __le16_to_cpu(cp->handle);
1448
1449 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
1450
1451 hci_dev_lock(hdev);
1452
1453 acl = hci_conn_hash_lookup_handle(hdev, handle);
1454 if (acl) {
1455 sco = acl->link;
1456 if (sco) {
1457 sco->state = BT_CLOSED;
1458
1459 hci_proto_connect_cfm(sco, status);
1460 hci_conn_del(sco);
1461 }
1462 }
1463
1464 hci_dev_unlock(hdev);
1465 }
1466
1467 static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
1468 {
1469 struct hci_cp_auth_requested *cp;
1470 struct hci_conn *conn;
1471
1472 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1473
1474 if (!status)
1475 return;
1476
1477 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
1478 if (!cp)
1479 return;
1480
1481 hci_dev_lock(hdev);
1482
1483 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1484 if (conn) {
1485 if (conn->state == BT_CONFIG) {
1486 hci_proto_connect_cfm(conn, status);
1487 hci_conn_drop(conn);
1488 }
1489 }
1490
1491 hci_dev_unlock(hdev);
1492 }
1493
1494 static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
1495 {
1496 struct hci_cp_set_conn_encrypt *cp;
1497 struct hci_conn *conn;
1498
1499 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1500
1501 if (!status)
1502 return;
1503
1504 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
1505 if (!cp)
1506 return;
1507
1508 hci_dev_lock(hdev);
1509
1510 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1511 if (conn) {
1512 if (conn->state == BT_CONFIG) {
1513 hci_proto_connect_cfm(conn, status);
1514 hci_conn_drop(conn);
1515 }
1516 }
1517
1518 hci_dev_unlock(hdev);
1519 }
1520
1521 static int hci_outgoing_auth_needed(struct hci_dev *hdev,
1522 struct hci_conn *conn)
1523 {
1524 if (conn->state != BT_CONFIG || !conn->out)
1525 return 0;
1526
1527 if (conn->pending_sec_level == BT_SECURITY_SDP)
1528 return 0;
1529
1530 /* Only request authentication for SSP connections or non-SSP
1531 * devices with sec_level MEDIUM or HIGH or if MITM protection
1532 * is requested.
1533 */
1534 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
1535 conn->pending_sec_level != BT_SECURITY_FIPS &&
1536 conn->pending_sec_level != BT_SECURITY_HIGH &&
1537 conn->pending_sec_level != BT_SECURITY_MEDIUM)
1538 return 0;
1539
1540 return 1;
1541 }
1542
1543 static int hci_resolve_name(struct hci_dev *hdev,
1544 struct inquiry_entry *e)
1545 {
1546 struct hci_cp_remote_name_req cp;
1547
1548 memset(&cp, 0, sizeof(cp));
1549
1550 bacpy(&cp.bdaddr, &e->data.bdaddr);
1551 cp.pscan_rep_mode = e->data.pscan_rep_mode;
1552 cp.pscan_mode = e->data.pscan_mode;
1553 cp.clock_offset = e->data.clock_offset;
1554
1555 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
1556 }
1557
1558 static bool hci_resolve_next_name(struct hci_dev *hdev)
1559 {
1560 struct discovery_state *discov = &hdev->discovery;
1561 struct inquiry_entry *e;
1562
1563 if (list_empty(&discov->resolve))
1564 return false;
1565
1566 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
1567 if (!e)
1568 return false;
1569
1570 if (hci_resolve_name(hdev, e) == 0) {
1571 e->name_state = NAME_PENDING;
1572 return true;
1573 }
1574
1575 return false;
1576 }
1577
1578 static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
1579 bdaddr_t *bdaddr, u8 *name, u8 name_len)
1580 {
1581 struct discovery_state *discov = &hdev->discovery;
1582 struct inquiry_entry *e;
1583
1584 if (conn && !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
1585 mgmt_device_connected(hdev, bdaddr, ACL_LINK, 0x00, 0, name,
1586 name_len, conn->dev_class);
1587
1588 if (discov->state == DISCOVERY_STOPPED)
1589 return;
1590
1591 if (discov->state == DISCOVERY_STOPPING)
1592 goto discov_complete;
1593
1594 if (discov->state != DISCOVERY_RESOLVING)
1595 return;
1596
1597 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
1598 /* If the device was not found in a list of found devices names of which
1599 * are pending. there is no need to continue resolving a next name as it
1600 * will be done upon receiving another Remote Name Request Complete
1601 * Event */
1602 if (!e)
1603 return;
1604
1605 list_del(&e->list);
1606 if (name) {
1607 e->name_state = NAME_KNOWN;
1608 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
1609 e->data.rssi, name, name_len);
1610 } else {
1611 e->name_state = NAME_NOT_KNOWN;
1612 }
1613
1614 if (hci_resolve_next_name(hdev))
1615 return;
1616
1617 discov_complete:
1618 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1619 }
1620
1621 static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
1622 {
1623 struct hci_cp_remote_name_req *cp;
1624 struct hci_conn *conn;
1625
1626 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1627
1628 /* If successful wait for the name req complete event before
1629 * checking for the need to do authentication */
1630 if (!status)
1631 return;
1632
1633 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
1634 if (!cp)
1635 return;
1636
1637 hci_dev_lock(hdev);
1638
1639 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1640
1641 if (test_bit(HCI_MGMT, &hdev->dev_flags))
1642 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
1643
1644 if (!conn)
1645 goto unlock;
1646
1647 if (!hci_outgoing_auth_needed(hdev, conn))
1648 goto unlock;
1649
1650 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
1651 struct hci_cp_auth_requested auth_cp;
1652
1653 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
1654
1655 auth_cp.handle = __cpu_to_le16(conn->handle);
1656 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
1657 sizeof(auth_cp), &auth_cp);
1658 }
1659
1660 unlock:
1661 hci_dev_unlock(hdev);
1662 }
1663
1664 static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
1665 {
1666 struct hci_cp_read_remote_features *cp;
1667 struct hci_conn *conn;
1668
1669 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1670
1671 if (!status)
1672 return;
1673
1674 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
1675 if (!cp)
1676 return;
1677
1678 hci_dev_lock(hdev);
1679
1680 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1681 if (conn) {
1682 if (conn->state == BT_CONFIG) {
1683 hci_proto_connect_cfm(conn, status);
1684 hci_conn_drop(conn);
1685 }
1686 }
1687
1688 hci_dev_unlock(hdev);
1689 }
1690
1691 static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
1692 {
1693 struct hci_cp_read_remote_ext_features *cp;
1694 struct hci_conn *conn;
1695
1696 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1697
1698 if (!status)
1699 return;
1700
1701 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
1702 if (!cp)
1703 return;
1704
1705 hci_dev_lock(hdev);
1706
1707 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1708 if (conn) {
1709 if (conn->state == BT_CONFIG) {
1710 hci_proto_connect_cfm(conn, status);
1711 hci_conn_drop(conn);
1712 }
1713 }
1714
1715 hci_dev_unlock(hdev);
1716 }
1717
1718 static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
1719 {
1720 struct hci_cp_setup_sync_conn *cp;
1721 struct hci_conn *acl, *sco;
1722 __u16 handle;
1723
1724 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1725
1726 if (!status)
1727 return;
1728
1729 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
1730 if (!cp)
1731 return;
1732
1733 handle = __le16_to_cpu(cp->handle);
1734
1735 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
1736
1737 hci_dev_lock(hdev);
1738
1739 acl = hci_conn_hash_lookup_handle(hdev, handle);
1740 if (acl) {
1741 sco = acl->link;
1742 if (sco) {
1743 sco->state = BT_CLOSED;
1744
1745 hci_proto_connect_cfm(sco, status);
1746 hci_conn_del(sco);
1747 }
1748 }
1749
1750 hci_dev_unlock(hdev);
1751 }
1752
1753 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
1754 {
1755 struct hci_cp_sniff_mode *cp;
1756 struct hci_conn *conn;
1757
1758 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1759
1760 if (!status)
1761 return;
1762
1763 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
1764 if (!cp)
1765 return;
1766
1767 hci_dev_lock(hdev);
1768
1769 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1770 if (conn) {
1771 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1772
1773 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
1774 hci_sco_setup(conn, status);
1775 }
1776
1777 hci_dev_unlock(hdev);
1778 }
1779
1780 static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
1781 {
1782 struct hci_cp_exit_sniff_mode *cp;
1783 struct hci_conn *conn;
1784
1785 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1786
1787 if (!status)
1788 return;
1789
1790 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
1791 if (!cp)
1792 return;
1793
1794 hci_dev_lock(hdev);
1795
1796 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1797 if (conn) {
1798 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1799
1800 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
1801 hci_sco_setup(conn, status);
1802 }
1803
1804 hci_dev_unlock(hdev);
1805 }
1806
1807 static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
1808 {
1809 struct hci_cp_disconnect *cp;
1810 struct hci_conn *conn;
1811
1812 if (!status)
1813 return;
1814
1815 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
1816 if (!cp)
1817 return;
1818
1819 hci_dev_lock(hdev);
1820
1821 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1822 if (conn)
1823 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
1824 conn->dst_type, status);
1825
1826 hci_dev_unlock(hdev);
1827 }
1828
1829 static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status)
1830 {
1831 struct hci_cp_create_phy_link *cp;
1832
1833 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1834
1835 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_PHY_LINK);
1836 if (!cp)
1837 return;
1838
1839 hci_dev_lock(hdev);
1840
1841 if (status) {
1842 struct hci_conn *hcon;
1843
1844 hcon = hci_conn_hash_lookup_handle(hdev, cp->phy_handle);
1845 if (hcon)
1846 hci_conn_del(hcon);
1847 } else {
1848 amp_write_remote_assoc(hdev, cp->phy_handle);
1849 }
1850
1851 hci_dev_unlock(hdev);
1852 }
1853
1854 static void hci_cs_accept_phylink(struct hci_dev *hdev, u8 status)
1855 {
1856 struct hci_cp_accept_phy_link *cp;
1857
1858 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1859
1860 if (status)
1861 return;
1862
1863 cp = hci_sent_cmd_data(hdev, HCI_OP_ACCEPT_PHY_LINK);
1864 if (!cp)
1865 return;
1866
1867 amp_write_remote_assoc(hdev, cp->phy_handle);
1868 }
1869
1870 static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
1871 {
1872 struct hci_cp_le_create_conn *cp;
1873 struct hci_conn *conn;
1874
1875 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1876
1877 /* All connection failure handling is taken care of by the
1878 * hci_le_conn_failed function which is triggered by the HCI
1879 * request completion callbacks used for connecting.
1880 */
1881 if (status)
1882 return;
1883
1884 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
1885 if (!cp)
1886 return;
1887
1888 hci_dev_lock(hdev);
1889
1890 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr);
1891 if (!conn)
1892 goto unlock;
1893
1894 /* Store the initiator and responder address information which
1895 * is needed for SMP. These values will not change during the
1896 * lifetime of the connection.
1897 */
1898 conn->init_addr_type = cp->own_address_type;
1899 if (cp->own_address_type == ADDR_LE_DEV_RANDOM)
1900 bacpy(&conn->init_addr, &hdev->random_addr);
1901 else
1902 bacpy(&conn->init_addr, &hdev->bdaddr);
1903
1904 conn->resp_addr_type = cp->peer_addr_type;
1905 bacpy(&conn->resp_addr, &cp->peer_addr);
1906
1907 /* We don't want the connection attempt to stick around
1908 * indefinitely since LE doesn't have a page timeout concept
1909 * like BR/EDR. Set a timer for any connection that doesn't use
1910 * the white list for connecting.
1911 */
1912 if (cp->filter_policy == HCI_LE_USE_PEER_ADDR)
1913 queue_delayed_work(conn->hdev->workqueue,
1914 &conn->le_conn_timeout,
1915 conn->conn_timeout);
1916
1917 unlock:
1918 hci_dev_unlock(hdev);
1919 }
1920
1921 static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
1922 {
1923 struct hci_cp_le_start_enc *cp;
1924 struct hci_conn *conn;
1925
1926 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1927
1928 if (!status)
1929 return;
1930
1931 hci_dev_lock(hdev);
1932
1933 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
1934 if (!cp)
1935 goto unlock;
1936
1937 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1938 if (!conn)
1939 goto unlock;
1940
1941 if (conn->state != BT_CONNECTED)
1942 goto unlock;
1943
1944 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
1945 hci_conn_drop(conn);
1946
1947 unlock:
1948 hci_dev_unlock(hdev);
1949 }
1950
1951 static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1952 {
1953 __u8 status = *((__u8 *) skb->data);
1954 struct discovery_state *discov = &hdev->discovery;
1955 struct inquiry_entry *e;
1956
1957 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1958
1959 hci_conn_check_pending(hdev);
1960
1961 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
1962 return;
1963
1964 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
1965 wake_up_bit(&hdev->flags, HCI_INQUIRY);
1966
1967 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
1968 return;
1969
1970 hci_dev_lock(hdev);
1971
1972 if (discov->state != DISCOVERY_FINDING)
1973 goto unlock;
1974
1975 if (list_empty(&discov->resolve)) {
1976 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1977 goto unlock;
1978 }
1979
1980 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
1981 if (e && hci_resolve_name(hdev, e) == 0) {
1982 e->name_state = NAME_PENDING;
1983 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
1984 } else {
1985 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1986 }
1987
1988 unlock:
1989 hci_dev_unlock(hdev);
1990 }
1991
1992 static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
1993 {
1994 struct inquiry_data data;
1995 struct inquiry_info *info = (void *) (skb->data + 1);
1996 int num_rsp = *((__u8 *) skb->data);
1997
1998 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1999
2000 if (!num_rsp)
2001 return;
2002
2003 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
2004 return;
2005
2006 hci_dev_lock(hdev);
2007
2008 for (; num_rsp; num_rsp--, info++) {
2009 u32 flags;
2010
2011 bacpy(&data.bdaddr, &info->bdaddr);
2012 data.pscan_rep_mode = info->pscan_rep_mode;
2013 data.pscan_period_mode = info->pscan_period_mode;
2014 data.pscan_mode = info->pscan_mode;
2015 memcpy(data.dev_class, info->dev_class, 3);
2016 data.clock_offset = info->clock_offset;
2017 data.rssi = 0x00;
2018 data.ssp_mode = 0x00;
2019
2020 flags = hci_inquiry_cache_update(hdev, &data, false);
2021
2022 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2023 info->dev_class, 0, flags, NULL, 0, NULL, 0);
2024 }
2025
2026 hci_dev_unlock(hdev);
2027 }
2028
2029 static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2030 {
2031 struct hci_ev_conn_complete *ev = (void *) skb->data;
2032 struct hci_conn *conn;
2033
2034 BT_DBG("%s", hdev->name);
2035
2036 hci_dev_lock(hdev);
2037
2038 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
2039 if (!conn) {
2040 if (ev->link_type != SCO_LINK)
2041 goto unlock;
2042
2043 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
2044 if (!conn)
2045 goto unlock;
2046
2047 conn->type = SCO_LINK;
2048 }
2049
2050 if (!ev->status) {
2051 conn->handle = __le16_to_cpu(ev->handle);
2052
2053 if (conn->type == ACL_LINK) {
2054 conn->state = BT_CONFIG;
2055 hci_conn_hold(conn);
2056
2057 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
2058 !hci_find_link_key(hdev, &ev->bdaddr))
2059 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
2060 else
2061 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2062 } else
2063 conn->state = BT_CONNECTED;
2064
2065 hci_conn_add_sysfs(conn);
2066
2067 if (test_bit(HCI_AUTH, &hdev->flags))
2068 set_bit(HCI_CONN_AUTH, &conn->flags);
2069
2070 if (test_bit(HCI_ENCRYPT, &hdev->flags))
2071 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2072
2073 /* Get remote features */
2074 if (conn->type == ACL_LINK) {
2075 struct hci_cp_read_remote_features cp;
2076 cp.handle = ev->handle;
2077 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
2078 sizeof(cp), &cp);
2079
2080 hci_update_page_scan(hdev, NULL);
2081 }
2082
2083 /* Set packet type for incoming connection */
2084 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
2085 struct hci_cp_change_conn_ptype cp;
2086 cp.handle = ev->handle;
2087 cp.pkt_type = cpu_to_le16(conn->pkt_type);
2088 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
2089 &cp);
2090 }
2091 } else {
2092 conn->state = BT_CLOSED;
2093 if (conn->type == ACL_LINK)
2094 mgmt_connect_failed(hdev, &conn->dst, conn->type,
2095 conn->dst_type, ev->status);
2096 }
2097
2098 if (conn->type == ACL_LINK)
2099 hci_sco_setup(conn, ev->status);
2100
2101 if (ev->status) {
2102 hci_proto_connect_cfm(conn, ev->status);
2103 hci_conn_del(conn);
2104 } else if (ev->link_type != ACL_LINK)
2105 hci_proto_connect_cfm(conn, ev->status);
2106
2107 unlock:
2108 hci_dev_unlock(hdev);
2109
2110 hci_conn_check_pending(hdev);
2111 }
2112
2113 static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
2114 {
2115 struct hci_cp_reject_conn_req cp;
2116
2117 bacpy(&cp.bdaddr, bdaddr);
2118 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
2119 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
2120 }
2121
2122 static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2123 {
2124 struct hci_ev_conn_request *ev = (void *) skb->data;
2125 int mask = hdev->link_mode;
2126 struct inquiry_entry *ie;
2127 struct hci_conn *conn;
2128 __u8 flags = 0;
2129
2130 BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr,
2131 ev->link_type);
2132
2133 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
2134 &flags);
2135
2136 if (!(mask & HCI_LM_ACCEPT)) {
2137 hci_reject_conn(hdev, &ev->bdaddr);
2138 return;
2139 }
2140
2141 if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr,
2142 BDADDR_BREDR)) {
2143 hci_reject_conn(hdev, &ev->bdaddr);
2144 return;
2145 }
2146
2147 /* Require HCI_CONNECTABLE or a whitelist entry to accept the
2148 * connection. These features are only touched through mgmt so
2149 * only do the checks if HCI_MGMT is set.
2150 */
2151 if (test_bit(HCI_MGMT, &hdev->dev_flags) &&
2152 !test_bit(HCI_CONNECTABLE, &hdev->dev_flags) &&
2153 !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
2154 BDADDR_BREDR)) {
2155 hci_reject_conn(hdev, &ev->bdaddr);
2156 return;
2157 }
2158
2159 /* Connection accepted */
2160
2161 hci_dev_lock(hdev);
2162
2163 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2164 if (ie)
2165 memcpy(ie->data.dev_class, ev->dev_class, 3);
2166
2167 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
2168 &ev->bdaddr);
2169 if (!conn) {
2170 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
2171 HCI_ROLE_SLAVE);
2172 if (!conn) {
2173 BT_ERR("No memory for new connection");
2174 hci_dev_unlock(hdev);
2175 return;
2176 }
2177 }
2178
2179 memcpy(conn->dev_class, ev->dev_class, 3);
2180
2181 hci_dev_unlock(hdev);
2182
2183 if (ev->link_type == ACL_LINK ||
2184 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
2185 struct hci_cp_accept_conn_req cp;
2186 conn->state = BT_CONNECT;
2187
2188 bacpy(&cp.bdaddr, &ev->bdaddr);
2189
2190 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
2191 cp.role = 0x00; /* Become master */
2192 else
2193 cp.role = 0x01; /* Remain slave */
2194
2195 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
2196 } else if (!(flags & HCI_PROTO_DEFER)) {
2197 struct hci_cp_accept_sync_conn_req cp;
2198 conn->state = BT_CONNECT;
2199
2200 bacpy(&cp.bdaddr, &ev->bdaddr);
2201 cp.pkt_type = cpu_to_le16(conn->pkt_type);
2202
2203 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
2204 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
2205 cp.max_latency = cpu_to_le16(0xffff);
2206 cp.content_format = cpu_to_le16(hdev->voice_setting);
2207 cp.retrans_effort = 0xff;
2208
2209 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
2210 &cp);
2211 } else {
2212 conn->state = BT_CONNECT2;
2213 hci_proto_connect_cfm(conn, 0);
2214 }
2215 }
2216
2217 static u8 hci_to_mgmt_reason(u8 err)
2218 {
2219 switch (err) {
2220 case HCI_ERROR_CONNECTION_TIMEOUT:
2221 return MGMT_DEV_DISCONN_TIMEOUT;
2222 case HCI_ERROR_REMOTE_USER_TERM:
2223 case HCI_ERROR_REMOTE_LOW_RESOURCES:
2224 case HCI_ERROR_REMOTE_POWER_OFF:
2225 return MGMT_DEV_DISCONN_REMOTE;
2226 case HCI_ERROR_LOCAL_HOST_TERM:
2227 return MGMT_DEV_DISCONN_LOCAL_HOST;
2228 default:
2229 return MGMT_DEV_DISCONN_UNKNOWN;
2230 }
2231 }
2232
2233 static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2234 {
2235 struct hci_ev_disconn_complete *ev = (void *) skb->data;
2236 u8 reason = hci_to_mgmt_reason(ev->reason);
2237 struct hci_conn_params *params;
2238 struct hci_conn *conn;
2239 bool mgmt_connected;
2240 u8 type;
2241
2242 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2243
2244 hci_dev_lock(hdev);
2245
2246 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2247 if (!conn)
2248 goto unlock;
2249
2250 if (ev->status) {
2251 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2252 conn->dst_type, ev->status);
2253 goto unlock;
2254 }
2255
2256 conn->state = BT_CLOSED;
2257
2258 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2259 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2260 reason, mgmt_connected);
2261
2262 if (conn->type == ACL_LINK) {
2263 if (test_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2264 hci_remove_link_key(hdev, &conn->dst);
2265
2266 hci_update_page_scan(hdev, NULL);
2267 }
2268
2269 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2270 if (params) {
2271 switch (params->auto_connect) {
2272 case HCI_AUTO_CONN_LINK_LOSS:
2273 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2274 break;
2275 /* Fall through */
2276
2277 case HCI_AUTO_CONN_DIRECT:
2278 case HCI_AUTO_CONN_ALWAYS:
2279 list_del_init(&params->action);
2280 list_add(&params->action, &hdev->pend_le_conns);
2281 hci_update_background_scan(hdev);
2282 break;
2283
2284 default:
2285 break;
2286 }
2287 }
2288
2289 type = conn->type;
2290
2291 hci_proto_disconn_cfm(conn, ev->reason);
2292 hci_conn_del(conn);
2293
2294 /* Re-enable advertising if necessary, since it might
2295 * have been disabled by the connection. From the
2296 * HCI_LE_Set_Advertise_Enable command description in
2297 * the core specification (v4.0):
2298 * "The Controller shall continue advertising until the Host
2299 * issues an LE_Set_Advertise_Enable command with
2300 * Advertising_Enable set to 0x00 (Advertising is disabled)
2301 * or until a connection is created or until the Advertising
2302 * is timed out due to Directed Advertising."
2303 */
2304 if (type == LE_LINK)
2305 mgmt_reenable_advertising(hdev);
2306
2307 unlock:
2308 hci_dev_unlock(hdev);
2309 }
2310
2311 static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2312 {
2313 struct hci_ev_auth_complete *ev = (void *) skb->data;
2314 struct hci_conn *conn;
2315
2316 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2317
2318 hci_dev_lock(hdev);
2319
2320 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2321 if (!conn)
2322 goto unlock;
2323
2324 if (!ev->status) {
2325 if (!hci_conn_ssp_enabled(conn) &&
2326 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
2327 BT_INFO("re-auth of legacy device is not possible.");
2328 } else {
2329 set_bit(HCI_CONN_AUTH, &conn->flags);
2330 conn->sec_level = conn->pending_sec_level;
2331 }
2332 } else {
2333 mgmt_auth_failed(conn, ev->status);
2334 }
2335
2336 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2337 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
2338
2339 if (conn->state == BT_CONFIG) {
2340 if (!ev->status && hci_conn_ssp_enabled(conn)) {
2341 struct hci_cp_set_conn_encrypt cp;
2342 cp.handle = ev->handle;
2343 cp.encrypt = 0x01;
2344 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2345 &cp);
2346 } else {
2347 conn->state = BT_CONNECTED;
2348 hci_proto_connect_cfm(conn, ev->status);
2349 hci_conn_drop(conn);
2350 }
2351 } else {
2352 hci_auth_cfm(conn, ev->status);
2353
2354 hci_conn_hold(conn);
2355 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2356 hci_conn_drop(conn);
2357 }
2358
2359 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
2360 if (!ev->status) {
2361 struct hci_cp_set_conn_encrypt cp;
2362 cp.handle = ev->handle;
2363 cp.encrypt = 0x01;
2364 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
2365 &cp);
2366 } else {
2367 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2368 hci_encrypt_cfm(conn, ev->status, 0x00);
2369 }
2370 }
2371
2372 unlock:
2373 hci_dev_unlock(hdev);
2374 }
2375
2376 static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
2377 {
2378 struct hci_ev_remote_name *ev = (void *) skb->data;
2379 struct hci_conn *conn;
2380
2381 BT_DBG("%s", hdev->name);
2382
2383 hci_conn_check_pending(hdev);
2384
2385 hci_dev_lock(hdev);
2386
2387 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2388
2389 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
2390 goto check_auth;
2391
2392 if (ev->status == 0)
2393 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
2394 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
2395 else
2396 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
2397
2398 check_auth:
2399 if (!conn)
2400 goto unlock;
2401
2402 if (!hci_outgoing_auth_needed(hdev, conn))
2403 goto unlock;
2404
2405 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
2406 struct hci_cp_auth_requested cp;
2407
2408 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2409
2410 cp.handle = __cpu_to_le16(conn->handle);
2411 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
2412 }
2413
2414 unlock:
2415 hci_dev_unlock(hdev);
2416 }
2417
2418 static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2419 {
2420 struct hci_ev_encrypt_change *ev = (void *) skb->data;
2421 struct hci_conn *conn;
2422
2423 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2424
2425 hci_dev_lock(hdev);
2426
2427 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2428 if (!conn)
2429 goto unlock;
2430
2431 if (!ev->status) {
2432 if (ev->encrypt) {
2433 /* Encryption implies authentication */
2434 set_bit(HCI_CONN_AUTH, &conn->flags);
2435 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
2436 conn->sec_level = conn->pending_sec_level;
2437
2438 /* P-256 authentication key implies FIPS */
2439 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
2440 set_bit(HCI_CONN_FIPS, &conn->flags);
2441
2442 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
2443 conn->type == LE_LINK)
2444 set_bit(HCI_CONN_AES_CCM, &conn->flags);
2445 } else {
2446 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
2447 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
2448 }
2449 }
2450
2451 /* We should disregard the current RPA and generate a new one
2452 * whenever the encryption procedure fails.
2453 */
2454 if (ev->status && conn->type == LE_LINK)
2455 set_bit(HCI_RPA_EXPIRED, &hdev->dev_flags);
2456
2457 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
2458
2459 if (ev->status && conn->state == BT_CONNECTED) {
2460 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2461 hci_conn_drop(conn);
2462 goto unlock;
2463 }
2464
2465 if (conn->state == BT_CONFIG) {
2466 if (!ev->status)
2467 conn->state = BT_CONNECTED;
2468
2469 /* In Secure Connections Only mode, do not allow any
2470 * connections that are not encrypted with AES-CCM
2471 * using a P-256 authenticated combination key.
2472 */
2473 if (test_bit(HCI_SC_ONLY, &hdev->dev_flags) &&
2474 (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
2475 conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
2476 hci_proto_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
2477 hci_conn_drop(conn);
2478 goto unlock;
2479 }
2480
2481 hci_proto_connect_cfm(conn, ev->status);
2482 hci_conn_drop(conn);
2483 } else
2484 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
2485
2486 unlock:
2487 hci_dev_unlock(hdev);
2488 }
2489
2490 static void hci_change_link_key_complete_evt(struct hci_dev *hdev,
2491 struct sk_buff *skb)
2492 {
2493 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
2494 struct hci_conn *conn;
2495
2496 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2497
2498 hci_dev_lock(hdev);
2499
2500 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2501 if (conn) {
2502 if (!ev->status)
2503 set_bit(HCI_CONN_SECURE, &conn->flags);
2504
2505 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2506
2507 hci_key_change_cfm(conn, ev->status);
2508 }
2509
2510 hci_dev_unlock(hdev);
2511 }
2512
2513 static void hci_remote_features_evt(struct hci_dev *hdev,
2514 struct sk_buff *skb)
2515 {
2516 struct hci_ev_remote_features *ev = (void *) skb->data;
2517 struct hci_conn *conn;
2518
2519 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2520
2521 hci_dev_lock(hdev);
2522
2523 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2524 if (!conn)
2525 goto unlock;
2526
2527 if (!ev->status)
2528 memcpy(conn->features[0], ev->features, 8);
2529
2530 if (conn->state != BT_CONFIG)
2531 goto unlock;
2532
2533 if (!ev->status && lmp_ssp_capable(hdev) && lmp_ssp_capable(conn)) {
2534 struct hci_cp_read_remote_ext_features cp;
2535 cp.handle = ev->handle;
2536 cp.page = 0x01;
2537 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
2538 sizeof(cp), &cp);
2539 goto unlock;
2540 }
2541
2542 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
2543 struct hci_cp_remote_name_req cp;
2544 memset(&cp, 0, sizeof(cp));
2545 bacpy(&cp.bdaddr, &conn->dst);
2546 cp.pscan_rep_mode = 0x02;
2547 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2548 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
2549 mgmt_device_connected(hdev, &conn->dst, conn->type,
2550 conn->dst_type, 0, NULL, 0,
2551 conn->dev_class);
2552
2553 if (!hci_outgoing_auth_needed(hdev, conn)) {
2554 conn->state = BT_CONNECTED;
2555 hci_proto_connect_cfm(conn, ev->status);
2556 hci_conn_drop(conn);
2557 }
2558
2559 unlock:
2560 hci_dev_unlock(hdev);
2561 }
2562
2563 static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2564 {
2565 struct hci_ev_cmd_complete *ev = (void *) skb->data;
2566 u8 status = skb->data[sizeof(*ev)];
2567 __u16 opcode;
2568
2569 skb_pull(skb, sizeof(*ev));
2570
2571 opcode = __le16_to_cpu(ev->opcode);
2572
2573 switch (opcode) {
2574 case HCI_OP_INQUIRY_CANCEL:
2575 hci_cc_inquiry_cancel(hdev, skb);
2576 break;
2577
2578 case HCI_OP_PERIODIC_INQ:
2579 hci_cc_periodic_inq(hdev, skb);
2580 break;
2581
2582 case HCI_OP_EXIT_PERIODIC_INQ:
2583 hci_cc_exit_periodic_inq(hdev, skb);
2584 break;
2585
2586 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
2587 hci_cc_remote_name_req_cancel(hdev, skb);
2588 break;
2589
2590 case HCI_OP_ROLE_DISCOVERY:
2591 hci_cc_role_discovery(hdev, skb);
2592 break;
2593
2594 case HCI_OP_READ_LINK_POLICY:
2595 hci_cc_read_link_policy(hdev, skb);
2596 break;
2597
2598 case HCI_OP_WRITE_LINK_POLICY:
2599 hci_cc_write_link_policy(hdev, skb);
2600 break;
2601
2602 case HCI_OP_READ_DEF_LINK_POLICY:
2603 hci_cc_read_def_link_policy(hdev, skb);
2604 break;
2605
2606 case HCI_OP_WRITE_DEF_LINK_POLICY:
2607 hci_cc_write_def_link_policy(hdev, skb);
2608 break;
2609
2610 case HCI_OP_RESET:
2611 hci_cc_reset(hdev, skb);
2612 break;
2613
2614 case HCI_OP_WRITE_LOCAL_NAME:
2615 hci_cc_write_local_name(hdev, skb);
2616 break;
2617
2618 case HCI_OP_READ_LOCAL_NAME:
2619 hci_cc_read_local_name(hdev, skb);
2620 break;
2621
2622 case HCI_OP_WRITE_AUTH_ENABLE:
2623 hci_cc_write_auth_enable(hdev, skb);
2624 break;
2625
2626 case HCI_OP_WRITE_ENCRYPT_MODE:
2627 hci_cc_write_encrypt_mode(hdev, skb);
2628 break;
2629
2630 case HCI_OP_WRITE_SCAN_ENABLE:
2631 hci_cc_write_scan_enable(hdev, skb);
2632 break;
2633
2634 case HCI_OP_READ_CLASS_OF_DEV:
2635 hci_cc_read_class_of_dev(hdev, skb);
2636 break;
2637
2638 case HCI_OP_WRITE_CLASS_OF_DEV:
2639 hci_cc_write_class_of_dev(hdev, skb);
2640 break;
2641
2642 case HCI_OP_READ_VOICE_SETTING:
2643 hci_cc_read_voice_setting(hdev, skb);
2644 break;
2645
2646 case HCI_OP_WRITE_VOICE_SETTING:
2647 hci_cc_write_voice_setting(hdev, skb);
2648 break;
2649
2650 case HCI_OP_READ_NUM_SUPPORTED_IAC:
2651 hci_cc_read_num_supported_iac(hdev, skb);
2652 break;
2653
2654 case HCI_OP_WRITE_SSP_MODE:
2655 hci_cc_write_ssp_mode(hdev, skb);
2656 break;
2657
2658 case HCI_OP_WRITE_SC_SUPPORT:
2659 hci_cc_write_sc_support(hdev, skb);
2660 break;
2661
2662 case HCI_OP_READ_LOCAL_VERSION:
2663 hci_cc_read_local_version(hdev, skb);
2664 break;
2665
2666 case HCI_OP_READ_LOCAL_COMMANDS:
2667 hci_cc_read_local_commands(hdev, skb);
2668 break;
2669
2670 case HCI_OP_READ_LOCAL_FEATURES:
2671 hci_cc_read_local_features(hdev, skb);
2672 break;
2673
2674 case HCI_OP_READ_LOCAL_EXT_FEATURES:
2675 hci_cc_read_local_ext_features(hdev, skb);
2676 break;
2677
2678 case HCI_OP_READ_BUFFER_SIZE:
2679 hci_cc_read_buffer_size(hdev, skb);
2680 break;
2681
2682 case HCI_OP_READ_BD_ADDR:
2683 hci_cc_read_bd_addr(hdev, skb);
2684 break;
2685
2686 case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
2687 hci_cc_read_page_scan_activity(hdev, skb);
2688 break;
2689
2690 case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY:
2691 hci_cc_write_page_scan_activity(hdev, skb);
2692 break;
2693
2694 case HCI_OP_READ_PAGE_SCAN_TYPE:
2695 hci_cc_read_page_scan_type(hdev, skb);
2696 break;
2697
2698 case HCI_OP_WRITE_PAGE_SCAN_TYPE:
2699 hci_cc_write_page_scan_type(hdev, skb);
2700 break;
2701
2702 case HCI_OP_READ_DATA_BLOCK_SIZE:
2703 hci_cc_read_data_block_size(hdev, skb);
2704 break;
2705
2706 case HCI_OP_READ_FLOW_CONTROL_MODE:
2707 hci_cc_read_flow_control_mode(hdev, skb);
2708 break;
2709
2710 case HCI_OP_READ_LOCAL_AMP_INFO:
2711 hci_cc_read_local_amp_info(hdev, skb);
2712 break;
2713
2714 case HCI_OP_READ_CLOCK:
2715 hci_cc_read_clock(hdev, skb);
2716 break;
2717
2718 case HCI_OP_READ_LOCAL_AMP_ASSOC:
2719 hci_cc_read_local_amp_assoc(hdev, skb);
2720 break;
2721
2722 case HCI_OP_READ_INQ_RSP_TX_POWER:
2723 hci_cc_read_inq_rsp_tx_power(hdev, skb);
2724 break;
2725
2726 case HCI_OP_PIN_CODE_REPLY:
2727 hci_cc_pin_code_reply(hdev, skb);
2728 break;
2729
2730 case HCI_OP_PIN_CODE_NEG_REPLY:
2731 hci_cc_pin_code_neg_reply(hdev, skb);
2732 break;
2733
2734 case HCI_OP_READ_LOCAL_OOB_DATA:
2735 hci_cc_read_local_oob_data(hdev, skb);
2736 break;
2737
2738 case HCI_OP_READ_LOCAL_OOB_EXT_DATA:
2739 hci_cc_read_local_oob_ext_data(hdev, skb);
2740 break;
2741
2742 case HCI_OP_LE_READ_BUFFER_SIZE:
2743 hci_cc_le_read_buffer_size(hdev, skb);
2744 break;
2745
2746 case HCI_OP_LE_READ_LOCAL_FEATURES:
2747 hci_cc_le_read_local_features(hdev, skb);
2748 break;
2749
2750 case HCI_OP_LE_READ_ADV_TX_POWER:
2751 hci_cc_le_read_adv_tx_power(hdev, skb);
2752 break;
2753
2754 case HCI_OP_USER_CONFIRM_REPLY:
2755 hci_cc_user_confirm_reply(hdev, skb);
2756 break;
2757
2758 case HCI_OP_USER_CONFIRM_NEG_REPLY:
2759 hci_cc_user_confirm_neg_reply(hdev, skb);
2760 break;
2761
2762 case HCI_OP_USER_PASSKEY_REPLY:
2763 hci_cc_user_passkey_reply(hdev, skb);
2764 break;
2765
2766 case HCI_OP_USER_PASSKEY_NEG_REPLY:
2767 hci_cc_user_passkey_neg_reply(hdev, skb);
2768 break;
2769
2770 case HCI_OP_LE_SET_RANDOM_ADDR:
2771 hci_cc_le_set_random_addr(hdev, skb);
2772 break;
2773
2774 case HCI_OP_LE_SET_ADV_ENABLE:
2775 hci_cc_le_set_adv_enable(hdev, skb);
2776 break;
2777
2778 case HCI_OP_LE_SET_SCAN_PARAM:
2779 hci_cc_le_set_scan_param(hdev, skb);
2780 break;
2781
2782 case HCI_OP_LE_SET_SCAN_ENABLE:
2783 hci_cc_le_set_scan_enable(hdev, skb);
2784 break;
2785
2786 case HCI_OP_LE_READ_WHITE_LIST_SIZE:
2787 hci_cc_le_read_white_list_size(hdev, skb);
2788 break;
2789
2790 case HCI_OP_LE_CLEAR_WHITE_LIST:
2791 hci_cc_le_clear_white_list(hdev, skb);
2792 break;
2793
2794 case HCI_OP_LE_ADD_TO_WHITE_LIST:
2795 hci_cc_le_add_to_white_list(hdev, skb);
2796 break;
2797
2798 case HCI_OP_LE_DEL_FROM_WHITE_LIST:
2799 hci_cc_le_del_from_white_list(hdev, skb);
2800 break;
2801
2802 case HCI_OP_LE_READ_SUPPORTED_STATES:
2803 hci_cc_le_read_supported_states(hdev, skb);
2804 break;
2805
2806 case HCI_OP_WRITE_LE_HOST_SUPPORTED:
2807 hci_cc_write_le_host_supported(hdev, skb);
2808 break;
2809
2810 case HCI_OP_LE_SET_ADV_PARAM:
2811 hci_cc_set_adv_param(hdev, skb);
2812 break;
2813
2814 case HCI_OP_WRITE_REMOTE_AMP_ASSOC:
2815 hci_cc_write_remote_amp_assoc(hdev, skb);
2816 break;
2817
2818 case HCI_OP_READ_RSSI:
2819 hci_cc_read_rssi(hdev, skb);
2820 break;
2821
2822 case HCI_OP_READ_TX_POWER:
2823 hci_cc_read_tx_power(hdev, skb);
2824 break;
2825
2826 default:
2827 BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
2828 break;
2829 }
2830
2831 if (opcode != HCI_OP_NOP)
2832 cancel_delayed_work(&hdev->cmd_timer);
2833
2834 hci_req_cmd_complete(hdev, opcode, status);
2835
2836 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
2837 atomic_set(&hdev->cmd_cnt, 1);
2838 if (!skb_queue_empty(&hdev->cmd_q))
2839 queue_work(hdev->workqueue, &hdev->cmd_work);
2840 }
2841 }
2842
2843 static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
2844 {
2845 struct hci_ev_cmd_status *ev = (void *) skb->data;
2846 __u16 opcode;
2847
2848 skb_pull(skb, sizeof(*ev));
2849
2850 opcode = __le16_to_cpu(ev->opcode);
2851
2852 switch (opcode) {
2853 case HCI_OP_INQUIRY:
2854 hci_cs_inquiry(hdev, ev->status);
2855 break;
2856
2857 case HCI_OP_CREATE_CONN:
2858 hci_cs_create_conn(hdev, ev->status);
2859 break;
2860
2861 case HCI_OP_ADD_SCO:
2862 hci_cs_add_sco(hdev, ev->status);
2863 break;
2864
2865 case HCI_OP_AUTH_REQUESTED:
2866 hci_cs_auth_requested(hdev, ev->status);
2867 break;
2868
2869 case HCI_OP_SET_CONN_ENCRYPT:
2870 hci_cs_set_conn_encrypt(hdev, ev->status);
2871 break;
2872
2873 case HCI_OP_REMOTE_NAME_REQ:
2874 hci_cs_remote_name_req(hdev, ev->status);
2875 break;
2876
2877 case HCI_OP_READ_REMOTE_FEATURES:
2878 hci_cs_read_remote_features(hdev, ev->status);
2879 break;
2880
2881 case HCI_OP_READ_REMOTE_EXT_FEATURES:
2882 hci_cs_read_remote_ext_features(hdev, ev->status);
2883 break;
2884
2885 case HCI_OP_SETUP_SYNC_CONN:
2886 hci_cs_setup_sync_conn(hdev, ev->status);
2887 break;
2888
2889 case HCI_OP_SNIFF_MODE:
2890 hci_cs_sniff_mode(hdev, ev->status);
2891 break;
2892
2893 case HCI_OP_EXIT_SNIFF_MODE:
2894 hci_cs_exit_sniff_mode(hdev, ev->status);
2895 break;
2896
2897 case HCI_OP_DISCONNECT:
2898 hci_cs_disconnect(hdev, ev->status);
2899 break;
2900
2901 case HCI_OP_CREATE_PHY_LINK:
2902 hci_cs_create_phylink(hdev, ev->status);
2903 break;
2904
2905 case HCI_OP_ACCEPT_PHY_LINK:
2906 hci_cs_accept_phylink(hdev, ev->status);
2907 break;
2908
2909 case HCI_OP_LE_CREATE_CONN:
2910 hci_cs_le_create_conn(hdev, ev->status);
2911 break;
2912
2913 case HCI_OP_LE_START_ENC:
2914 hci_cs_le_start_enc(hdev, ev->status);
2915 break;
2916
2917 default:
2918 BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
2919 break;
2920 }
2921
2922 if (opcode != HCI_OP_NOP)
2923 cancel_delayed_work(&hdev->cmd_timer);
2924
2925 if (ev->status ||
2926 (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event))
2927 hci_req_cmd_complete(hdev, opcode, ev->status);
2928
2929 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
2930 atomic_set(&hdev->cmd_cnt, 1);
2931 if (!skb_queue_empty(&hdev->cmd_q))
2932 queue_work(hdev->workqueue, &hdev->cmd_work);
2933 }
2934 }
2935
2936 static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2937 {
2938 struct hci_ev_role_change *ev = (void *) skb->data;
2939 struct hci_conn *conn;
2940
2941 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
2942
2943 hci_dev_lock(hdev);
2944
2945 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2946 if (conn) {
2947 if (!ev->status)
2948 conn->role = ev->role;
2949
2950 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
2951
2952 hci_role_switch_cfm(conn, ev->status, ev->role);
2953 }
2954
2955 hci_dev_unlock(hdev);
2956 }
2957
2958 static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
2959 {
2960 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
2961 int i;
2962
2963 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
2964 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
2965 return;
2966 }
2967
2968 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
2969 ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
2970 BT_DBG("%s bad parameters", hdev->name);
2971 return;
2972 }
2973
2974 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
2975
2976 for (i = 0; i < ev->num_hndl; i++) {
2977 struct hci_comp_pkts_info *info = &ev->handles[i];
2978 struct hci_conn *conn;
2979 __u16 handle, count;
2980
2981 handle = __le16_to_cpu(info->handle);
2982 count = __le16_to_cpu(info->count);
2983
2984 conn = hci_conn_hash_lookup_handle(hdev, handle);
2985 if (!conn)
2986 continue;
2987
2988 conn->sent -= count;
2989
2990 switch (conn->type) {
2991 case ACL_LINK:
2992 hdev->acl_cnt += count;
2993 if (hdev->acl_cnt > hdev->acl_pkts)
2994 hdev->acl_cnt = hdev->acl_pkts;
2995 break;
2996
2997 case LE_LINK:
2998 if (hdev->le_pkts) {
2999 hdev->le_cnt += count;
3000 if (hdev->le_cnt > hdev->le_pkts)
3001 hdev->le_cnt = hdev->le_pkts;
3002 } else {
3003 hdev->acl_cnt += count;
3004 if (hdev->acl_cnt > hdev->acl_pkts)
3005 hdev->acl_cnt = hdev->acl_pkts;
3006 }
3007 break;
3008
3009 case SCO_LINK:
3010 hdev->sco_cnt += count;
3011 if (hdev->sco_cnt > hdev->sco_pkts)
3012 hdev->sco_cnt = hdev->sco_pkts;
3013 break;
3014
3015 default:
3016 BT_ERR("Unknown type %d conn %p", conn->type, conn);
3017 break;
3018 }
3019 }
3020
3021 queue_work(hdev->workqueue, &hdev->tx_work);
3022 }
3023
3024 static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
3025 __u16 handle)
3026 {
3027 struct hci_chan *chan;
3028
3029 switch (hdev->dev_type) {
3030 case HCI_BREDR:
3031 return hci_conn_hash_lookup_handle(hdev, handle);
3032 case HCI_AMP:
3033 chan = hci_chan_lookup_handle(hdev, handle);
3034 if (chan)
3035 return chan->conn;
3036 break;
3037 default:
3038 BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type);
3039 break;
3040 }
3041
3042 return NULL;
3043 }
3044
3045 static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
3046 {
3047 struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
3048 int i;
3049
3050 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
3051 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
3052 return;
3053 }
3054
3055 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
3056 ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
3057 BT_DBG("%s bad parameters", hdev->name);
3058 return;
3059 }
3060
3061 BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
3062 ev->num_hndl);
3063
3064 for (i = 0; i < ev->num_hndl; i++) {
3065 struct hci_comp_blocks_info *info = &ev->handles[i];
3066 struct hci_conn *conn = NULL;
3067 __u16 handle, block_count;
3068
3069 handle = __le16_to_cpu(info->handle);
3070 block_count = __le16_to_cpu(info->blocks);
3071
3072 conn = __hci_conn_lookup_handle(hdev, handle);
3073 if (!conn)
3074 continue;
3075
3076 conn->sent -= block_count;
3077
3078 switch (conn->type) {
3079 case ACL_LINK:
3080 case AMP_LINK:
3081 hdev->block_cnt += block_count;
3082 if (hdev->block_cnt > hdev->num_blocks)
3083 hdev->block_cnt = hdev->num_blocks;
3084 break;
3085
3086 default:
3087 BT_ERR("Unknown type %d conn %p", conn->type, conn);
3088 break;
3089 }
3090 }
3091
3092 queue_work(hdev->workqueue, &hdev->tx_work);
3093 }
3094
3095 static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3096 {
3097 struct hci_ev_mode_change *ev = (void *) skb->data;
3098 struct hci_conn *conn;
3099
3100 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3101
3102 hci_dev_lock(hdev);
3103
3104 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3105 if (conn) {
3106 conn->mode = ev->mode;
3107
3108 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
3109 &conn->flags)) {
3110 if (conn->mode == HCI_CM_ACTIVE)
3111 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3112 else
3113 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
3114 }
3115
3116 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
3117 hci_sco_setup(conn, ev->status);
3118 }
3119
3120 hci_dev_unlock(hdev);
3121 }
3122
3123 static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3124 {
3125 struct hci_ev_pin_code_req *ev = (void *) skb->data;
3126 struct hci_conn *conn;
3127
3128 BT_DBG("%s", hdev->name);
3129
3130 hci_dev_lock(hdev);
3131
3132 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3133 if (!conn)
3134 goto unlock;
3135
3136 if (conn->state == BT_CONNECTED) {
3137 hci_conn_hold(conn);
3138 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3139 hci_conn_drop(conn);
3140 }
3141
3142 if (!test_bit(HCI_BONDABLE, &hdev->dev_flags) &&
3143 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
3144 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
3145 sizeof(ev->bdaddr), &ev->bdaddr);
3146 } else if (test_bit(HCI_MGMT, &hdev->dev_flags)) {
3147 u8 secure;
3148
3149 if (conn->pending_sec_level == BT_SECURITY_HIGH)
3150 secure = 1;
3151 else
3152 secure = 0;
3153
3154 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
3155 }
3156
3157 unlock:
3158 hci_dev_unlock(hdev);
3159 }
3160
3161 static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3162 {
3163 struct hci_ev_link_key_req *ev = (void *) skb->data;
3164 struct hci_cp_link_key_reply cp;
3165 struct hci_conn *conn;
3166 struct link_key *key;
3167
3168 BT_DBG("%s", hdev->name);
3169
3170 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3171 return;
3172
3173 hci_dev_lock(hdev);
3174
3175 key = hci_find_link_key(hdev, &ev->bdaddr);
3176 if (!key) {
3177 BT_DBG("%s link key not found for %pMR", hdev->name,
3178 &ev->bdaddr);
3179 goto not_found;
3180 }
3181
3182 BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
3183 &ev->bdaddr);
3184
3185 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3186 if (conn) {
3187 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
3188 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
3189 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
3190 BT_DBG("%s ignoring unauthenticated key", hdev->name);
3191 goto not_found;
3192 }
3193
3194 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
3195 (conn->pending_sec_level == BT_SECURITY_HIGH ||
3196 conn->pending_sec_level == BT_SECURITY_FIPS)) {
3197 BT_DBG("%s ignoring key unauthenticated for high security",
3198 hdev->name);
3199 goto not_found;
3200 }
3201
3202 conn->key_type = key->type;
3203 conn->pin_length = key->pin_len;
3204 }
3205
3206 bacpy(&cp.bdaddr, &ev->bdaddr);
3207 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
3208
3209 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
3210
3211 hci_dev_unlock(hdev);
3212
3213 return;
3214
3215 not_found:
3216 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
3217 hci_dev_unlock(hdev);
3218 }
3219
3220 static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
3221 {
3222 struct hci_ev_link_key_notify *ev = (void *) skb->data;
3223 struct hci_conn *conn;
3224 struct link_key *key;
3225 bool persistent;
3226 u8 pin_len = 0;
3227
3228 BT_DBG("%s", hdev->name);
3229
3230 hci_dev_lock(hdev);
3231
3232 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3233 if (conn) {
3234 hci_conn_hold(conn);
3235 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3236 pin_len = conn->pin_length;
3237
3238 if (ev->key_type != HCI_LK_CHANGED_COMBINATION)
3239 conn->key_type = ev->key_type;
3240
3241 hci_conn_drop(conn);
3242 }
3243
3244 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3245 goto unlock;
3246
3247 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
3248 ev->key_type, pin_len, &persistent);
3249 if (!key)
3250 goto unlock;
3251
3252 mgmt_new_link_key(hdev, key, persistent);
3253
3254 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
3255 * is set. If it's not set simply remove the key from the kernel
3256 * list (we've still notified user space about it but with
3257 * store_hint being 0).
3258 */
3259 if (key->type == HCI_LK_DEBUG_COMBINATION &&
3260 !test_bit(HCI_KEEP_DEBUG_KEYS, &hdev->dev_flags)) {
3261 list_del(&key->list);
3262 kfree(key);
3263 } else if (conn) {
3264 if (persistent)
3265 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3266 else
3267 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3268 }
3269
3270 unlock:
3271 hci_dev_unlock(hdev);
3272 }
3273
3274 static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
3275 {
3276 struct hci_ev_clock_offset *ev = (void *) skb->data;
3277 struct hci_conn *conn;
3278
3279 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3280
3281 hci_dev_lock(hdev);
3282
3283 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3284 if (conn && !ev->status) {
3285 struct inquiry_entry *ie;
3286
3287 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3288 if (ie) {
3289 ie->data.clock_offset = ev->clock_offset;
3290 ie->timestamp = jiffies;
3291 }
3292 }
3293
3294 hci_dev_unlock(hdev);
3295 }
3296
3297 static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
3298 {
3299 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
3300 struct hci_conn *conn;
3301
3302 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3303
3304 hci_dev_lock(hdev);
3305
3306 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3307 if (conn && !ev->status)
3308 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
3309
3310 hci_dev_unlock(hdev);
3311 }
3312
3313 static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
3314 {
3315 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
3316 struct inquiry_entry *ie;
3317
3318 BT_DBG("%s", hdev->name);
3319
3320 hci_dev_lock(hdev);
3321
3322 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3323 if (ie) {
3324 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
3325 ie->timestamp = jiffies;
3326 }
3327
3328 hci_dev_unlock(hdev);
3329 }
3330
3331 static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
3332 struct sk_buff *skb)
3333 {
3334 struct inquiry_data data;
3335 int num_rsp = *((__u8 *) skb->data);
3336
3337 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3338
3339 if (!num_rsp)
3340 return;
3341
3342 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
3343 return;
3344
3345 hci_dev_lock(hdev);
3346
3347 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
3348 struct inquiry_info_with_rssi_and_pscan_mode *info;
3349 info = (void *) (skb->data + 1);
3350
3351 for (; num_rsp; num_rsp--, info++) {
3352 u32 flags;
3353
3354 bacpy(&data.bdaddr, &info->bdaddr);
3355 data.pscan_rep_mode = info->pscan_rep_mode;
3356 data.pscan_period_mode = info->pscan_period_mode;
3357 data.pscan_mode = info->pscan_mode;
3358 memcpy(data.dev_class, info->dev_class, 3);
3359 data.clock_offset = info->clock_offset;
3360 data.rssi = info->rssi;
3361 data.ssp_mode = 0x00;
3362
3363 flags = hci_inquiry_cache_update(hdev, &data, false);
3364
3365 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3366 info->dev_class, info->rssi,
3367 flags, NULL, 0, NULL, 0);
3368 }
3369 } else {
3370 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
3371
3372 for (; num_rsp; num_rsp--, info++) {
3373 u32 flags;
3374
3375 bacpy(&data.bdaddr, &info->bdaddr);
3376 data.pscan_rep_mode = info->pscan_rep_mode;
3377 data.pscan_period_mode = info->pscan_period_mode;
3378 data.pscan_mode = 0x00;
3379 memcpy(data.dev_class, info->dev_class, 3);
3380 data.clock_offset = info->clock_offset;
3381 data.rssi = info->rssi;
3382 data.ssp_mode = 0x00;
3383
3384 flags = hci_inquiry_cache_update(hdev, &data, false);
3385
3386 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3387 info->dev_class, info->rssi,
3388 flags, NULL, 0, NULL, 0);
3389 }
3390 }
3391
3392 hci_dev_unlock(hdev);
3393 }
3394
3395 static void hci_remote_ext_features_evt(struct hci_dev *hdev,
3396 struct sk_buff *skb)
3397 {
3398 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
3399 struct hci_conn *conn;
3400
3401 BT_DBG("%s", hdev->name);
3402
3403 hci_dev_lock(hdev);
3404
3405 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3406 if (!conn)
3407 goto unlock;
3408
3409 if (ev->page < HCI_MAX_PAGES)
3410 memcpy(conn->features[ev->page], ev->features, 8);
3411
3412 if (!ev->status && ev->page == 0x01) {
3413 struct inquiry_entry *ie;
3414
3415 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3416 if (ie)
3417 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
3418
3419 if (ev->features[0] & LMP_HOST_SSP) {
3420 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
3421 } else {
3422 /* It is mandatory by the Bluetooth specification that
3423 * Extended Inquiry Results are only used when Secure
3424 * Simple Pairing is enabled, but some devices violate
3425 * this.
3426 *
3427 * To make these devices work, the internal SSP
3428 * enabled flag needs to be cleared if the remote host
3429 * features do not indicate SSP support */
3430 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
3431 }
3432
3433 if (ev->features[0] & LMP_HOST_SC)
3434 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
3435 }
3436
3437 if (conn->state != BT_CONFIG)
3438 goto unlock;
3439
3440 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
3441 struct hci_cp_remote_name_req cp;
3442 memset(&cp, 0, sizeof(cp));
3443 bacpy(&cp.bdaddr, &conn->dst);
3444 cp.pscan_rep_mode = 0x02;
3445 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
3446 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
3447 mgmt_device_connected(hdev, &conn->dst, conn->type,
3448 conn->dst_type, 0, NULL, 0,
3449 conn->dev_class);
3450
3451 if (!hci_outgoing_auth_needed(hdev, conn)) {
3452 conn->state = BT_CONNECTED;
3453 hci_proto_connect_cfm(conn, ev->status);
3454 hci_conn_drop(conn);
3455 }
3456
3457 unlock:
3458 hci_dev_unlock(hdev);
3459 }
3460
3461 static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
3462 struct sk_buff *skb)
3463 {
3464 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
3465 struct hci_conn *conn;
3466
3467 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
3468
3469 hci_dev_lock(hdev);
3470
3471 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
3472 if (!conn) {
3473 if (ev->link_type == ESCO_LINK)
3474 goto unlock;
3475
3476 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
3477 if (!conn)
3478 goto unlock;
3479
3480 conn->type = SCO_LINK;
3481 }
3482
3483 switch (ev->status) {
3484 case 0x00:
3485 conn->handle = __le16_to_cpu(ev->handle);
3486 conn->state = BT_CONNECTED;
3487
3488 hci_conn_add_sysfs(conn);
3489 break;
3490
3491 case 0x10: /* Connection Accept Timeout */
3492 case 0x0d: /* Connection Rejected due to Limited Resources */
3493 case 0x11: /* Unsupported Feature or Parameter Value */
3494 case 0x1c: /* SCO interval rejected */
3495 case 0x1a: /* Unsupported Remote Feature */
3496 case 0x1f: /* Unspecified error */
3497 case 0x20: /* Unsupported LMP Parameter value */
3498 if (conn->out) {
3499 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
3500 (hdev->esco_type & EDR_ESCO_MASK);
3501 if (hci_setup_sync(conn, conn->link->handle))
3502 goto unlock;
3503 }
3504 /* fall through */
3505
3506 default:
3507 conn->state = BT_CLOSED;
3508 break;
3509 }
3510
3511 hci_proto_connect_cfm(conn, ev->status);
3512 if (ev->status)
3513 hci_conn_del(conn);
3514
3515 unlock:
3516 hci_dev_unlock(hdev);
3517 }
3518
3519 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
3520 {
3521 size_t parsed = 0;
3522
3523 while (parsed < eir_len) {
3524 u8 field_len = eir[0];
3525
3526 if (field_len == 0)
3527 return parsed;
3528
3529 parsed += field_len + 1;
3530 eir += field_len + 1;
3531 }
3532
3533 return eir_len;
3534 }
3535
3536 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
3537 struct sk_buff *skb)
3538 {
3539 struct inquiry_data data;
3540 struct extended_inquiry_info *info = (void *) (skb->data + 1);
3541 int num_rsp = *((__u8 *) skb->data);
3542 size_t eir_len;
3543
3544 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3545
3546 if (!num_rsp)
3547 return;
3548
3549 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags))
3550 return;
3551
3552 hci_dev_lock(hdev);
3553
3554 for (; num_rsp; num_rsp--, info++) {
3555 u32 flags;
3556 bool name_known;
3557
3558 bacpy(&data.bdaddr, &info->bdaddr);
3559 data.pscan_rep_mode = info->pscan_rep_mode;
3560 data.pscan_period_mode = info->pscan_period_mode;
3561 data.pscan_mode = 0x00;
3562 memcpy(data.dev_class, info->dev_class, 3);
3563 data.clock_offset = info->clock_offset;
3564 data.rssi = info->rssi;
3565 data.ssp_mode = 0x01;
3566
3567 if (test_bit(HCI_MGMT, &hdev->dev_flags))
3568 name_known = eir_has_data_type(info->data,
3569 sizeof(info->data),
3570 EIR_NAME_COMPLETE);
3571 else
3572 name_known = true;
3573
3574 flags = hci_inquiry_cache_update(hdev, &data, name_known);
3575
3576 eir_len = eir_get_length(info->data, sizeof(info->data));
3577
3578 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
3579 info->dev_class, info->rssi,
3580 flags, info->data, eir_len, NULL, 0);
3581 }
3582
3583 hci_dev_unlock(hdev);
3584 }
3585
3586 static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
3587 struct sk_buff *skb)
3588 {
3589 struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
3590 struct hci_conn *conn;
3591
3592 BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status,
3593 __le16_to_cpu(ev->handle));
3594
3595 hci_dev_lock(hdev);
3596
3597 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3598 if (!conn)
3599 goto unlock;
3600
3601 /* For BR/EDR the necessary steps are taken through the
3602 * auth_complete event.
3603 */
3604 if (conn->type != LE_LINK)
3605 goto unlock;
3606
3607 if (!ev->status)
3608 conn->sec_level = conn->pending_sec_level;
3609
3610 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3611
3612 if (ev->status && conn->state == BT_CONNECTED) {
3613 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3614 hci_conn_drop(conn);
3615 goto unlock;
3616 }
3617
3618 if (conn->state == BT_CONFIG) {
3619 if (!ev->status)
3620 conn->state = BT_CONNECTED;
3621
3622 hci_proto_connect_cfm(conn, ev->status);
3623 hci_conn_drop(conn);
3624 } else {
3625 hci_auth_cfm(conn, ev->status);
3626
3627 hci_conn_hold(conn);
3628 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3629 hci_conn_drop(conn);
3630 }
3631
3632 unlock:
3633 hci_dev_unlock(hdev);
3634 }
3635
3636 static u8 hci_get_auth_req(struct hci_conn *conn)
3637 {
3638 /* If remote requests no-bonding follow that lead */
3639 if (conn->remote_auth == HCI_AT_NO_BONDING ||
3640 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
3641 return conn->remote_auth | (conn->auth_type & 0x01);
3642
3643 /* If both remote and local have enough IO capabilities, require
3644 * MITM protection
3645 */
3646 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
3647 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
3648 return conn->remote_auth | 0x01;
3649
3650 /* No MITM protection possible so ignore remote requirement */
3651 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
3652 }
3653
3654 static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
3655 {
3656 struct hci_ev_io_capa_request *ev = (void *) skb->data;
3657 struct hci_conn *conn;
3658
3659 BT_DBG("%s", hdev->name);
3660
3661 hci_dev_lock(hdev);
3662
3663 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3664 if (!conn)
3665 goto unlock;
3666
3667 hci_conn_hold(conn);
3668
3669 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3670 goto unlock;
3671
3672 /* Allow pairing if we're pairable, the initiators of the
3673 * pairing or if the remote is not requesting bonding.
3674 */
3675 if (test_bit(HCI_BONDABLE, &hdev->dev_flags) ||
3676 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
3677 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
3678 struct hci_cp_io_capability_reply cp;
3679
3680 bacpy(&cp.bdaddr, &ev->bdaddr);
3681 /* Change the IO capability from KeyboardDisplay
3682 * to DisplayYesNo as it is not supported by BT spec. */
3683 cp.capability = (conn->io_capability == 0x04) ?
3684 HCI_IO_DISPLAY_YESNO : conn->io_capability;
3685
3686 /* If we are initiators, there is no remote information yet */
3687 if (conn->remote_auth == 0xff) {
3688 /* Request MITM protection if our IO caps allow it
3689 * except for the no-bonding case.
3690 */
3691 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
3692 conn->auth_type != HCI_AT_NO_BONDING)
3693 conn->auth_type |= 0x01;
3694 } else {
3695 conn->auth_type = hci_get_auth_req(conn);
3696 }
3697
3698 /* If we're not bondable, force one of the non-bondable
3699 * authentication requirement values.
3700 */
3701 if (!test_bit(HCI_BONDABLE, &hdev->dev_flags))
3702 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
3703
3704 cp.authentication = conn->auth_type;
3705
3706 if (hci_find_remote_oob_data(hdev, &conn->dst) &&
3707 (conn->out || test_bit(HCI_CONN_REMOTE_OOB, &conn->flags)))
3708 cp.oob_data = 0x01;
3709 else
3710 cp.oob_data = 0x00;
3711
3712 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
3713 sizeof(cp), &cp);
3714 } else {
3715 struct hci_cp_io_capability_neg_reply cp;
3716
3717 bacpy(&cp.bdaddr, &ev->bdaddr);
3718 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
3719
3720 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
3721 sizeof(cp), &cp);
3722 }
3723
3724 unlock:
3725 hci_dev_unlock(hdev);
3726 }
3727
3728 static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
3729 {
3730 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
3731 struct hci_conn *conn;
3732
3733 BT_DBG("%s", hdev->name);
3734
3735 hci_dev_lock(hdev);
3736
3737 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3738 if (!conn)
3739 goto unlock;
3740
3741 conn->remote_cap = ev->capability;
3742 conn->remote_auth = ev->authentication;
3743 if (ev->oob_data)
3744 set_bit(HCI_CONN_REMOTE_OOB, &conn->flags);
3745
3746 unlock:
3747 hci_dev_unlock(hdev);
3748 }
3749
3750 static void hci_user_confirm_request_evt(struct hci_dev *hdev,
3751 struct sk_buff *skb)
3752 {
3753 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
3754 int loc_mitm, rem_mitm, confirm_hint = 0;
3755 struct hci_conn *conn;
3756
3757 BT_DBG("%s", hdev->name);
3758
3759 hci_dev_lock(hdev);
3760
3761 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3762 goto unlock;
3763
3764 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3765 if (!conn)
3766 goto unlock;
3767
3768 loc_mitm = (conn->auth_type & 0x01);
3769 rem_mitm = (conn->remote_auth & 0x01);
3770
3771 /* If we require MITM but the remote device can't provide that
3772 * (it has NoInputNoOutput) then reject the confirmation
3773 * request. We check the security level here since it doesn't
3774 * necessarily match conn->auth_type.
3775 */
3776 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
3777 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
3778 BT_DBG("Rejecting request: remote device can't provide MITM");
3779 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
3780 sizeof(ev->bdaddr), &ev->bdaddr);
3781 goto unlock;
3782 }
3783
3784 /* If no side requires MITM protection; auto-accept */
3785 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
3786 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
3787
3788 /* If we're not the initiators request authorization to
3789 * proceed from user space (mgmt_user_confirm with
3790 * confirm_hint set to 1). The exception is if neither
3791 * side had MITM or if the local IO capability is
3792 * NoInputNoOutput, in which case we do auto-accept
3793 */
3794 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
3795 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
3796 (loc_mitm || rem_mitm)) {
3797 BT_DBG("Confirming auto-accept as acceptor");
3798 confirm_hint = 1;
3799 goto confirm;
3800 }
3801
3802 BT_DBG("Auto-accept of user confirmation with %ums delay",
3803 hdev->auto_accept_delay);
3804
3805 if (hdev->auto_accept_delay > 0) {
3806 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
3807 queue_delayed_work(conn->hdev->workqueue,
3808 &conn->auto_accept_work, delay);
3809 goto unlock;
3810 }
3811
3812 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
3813 sizeof(ev->bdaddr), &ev->bdaddr);
3814 goto unlock;
3815 }
3816
3817 confirm:
3818 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
3819 le32_to_cpu(ev->passkey), confirm_hint);
3820
3821 unlock:
3822 hci_dev_unlock(hdev);
3823 }
3824
3825 static void hci_user_passkey_request_evt(struct hci_dev *hdev,
3826 struct sk_buff *skb)
3827 {
3828 struct hci_ev_user_passkey_req *ev = (void *) skb->data;
3829
3830 BT_DBG("%s", hdev->name);
3831
3832 if (test_bit(HCI_MGMT, &hdev->dev_flags))
3833 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
3834 }
3835
3836 static void hci_user_passkey_notify_evt(struct hci_dev *hdev,
3837 struct sk_buff *skb)
3838 {
3839 struct hci_ev_user_passkey_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 conn->passkey_notify = __le32_to_cpu(ev->passkey);
3849 conn->passkey_entered = 0;
3850
3851 if (test_bit(HCI_MGMT, &hdev->dev_flags))
3852 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
3853 conn->dst_type, conn->passkey_notify,
3854 conn->passkey_entered);
3855 }
3856
3857 static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
3858 {
3859 struct hci_ev_keypress_notify *ev = (void *) skb->data;
3860 struct hci_conn *conn;
3861
3862 BT_DBG("%s", hdev->name);
3863
3864 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3865 if (!conn)
3866 return;
3867
3868 switch (ev->type) {
3869 case HCI_KEYPRESS_STARTED:
3870 conn->passkey_entered = 0;
3871 return;
3872
3873 case HCI_KEYPRESS_ENTERED:
3874 conn->passkey_entered++;
3875 break;
3876
3877 case HCI_KEYPRESS_ERASED:
3878 conn->passkey_entered--;
3879 break;
3880
3881 case HCI_KEYPRESS_CLEARED:
3882 conn->passkey_entered = 0;
3883 break;
3884
3885 case HCI_KEYPRESS_COMPLETED:
3886 return;
3887 }
3888
3889 if (test_bit(HCI_MGMT, &hdev->dev_flags))
3890 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
3891 conn->dst_type, conn->passkey_notify,
3892 conn->passkey_entered);
3893 }
3894
3895 static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
3896 struct sk_buff *skb)
3897 {
3898 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
3899 struct hci_conn *conn;
3900
3901 BT_DBG("%s", hdev->name);
3902
3903 hci_dev_lock(hdev);
3904
3905 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3906 if (!conn)
3907 goto unlock;
3908
3909 /* Reset the authentication requirement to unknown */
3910 conn->remote_auth = 0xff;
3911
3912 /* To avoid duplicate auth_failed events to user space we check
3913 * the HCI_CONN_AUTH_PEND flag which will be set if we
3914 * initiated the authentication. A traditional auth_complete
3915 * event gets always produced as initiator and is also mapped to
3916 * the mgmt_auth_failed event */
3917 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
3918 mgmt_auth_failed(conn, ev->status);
3919
3920 hci_conn_drop(conn);
3921
3922 unlock:
3923 hci_dev_unlock(hdev);
3924 }
3925
3926 static void hci_remote_host_features_evt(struct hci_dev *hdev,
3927 struct sk_buff *skb)
3928 {
3929 struct hci_ev_remote_host_features *ev = (void *) skb->data;
3930 struct inquiry_entry *ie;
3931 struct hci_conn *conn;
3932
3933 BT_DBG("%s", hdev->name);
3934
3935 hci_dev_lock(hdev);
3936
3937 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3938 if (conn)
3939 memcpy(conn->features[1], ev->features, 8);
3940
3941 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3942 if (ie)
3943 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
3944
3945 hci_dev_unlock(hdev);
3946 }
3947
3948 static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
3949 struct sk_buff *skb)
3950 {
3951 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
3952 struct oob_data *data;
3953
3954 BT_DBG("%s", hdev->name);
3955
3956 hci_dev_lock(hdev);
3957
3958 if (!test_bit(HCI_MGMT, &hdev->dev_flags))
3959 goto unlock;
3960
3961 data = hci_find_remote_oob_data(hdev, &ev->bdaddr);
3962 if (data) {
3963 if (test_bit(HCI_SC_ENABLED, &hdev->dev_flags)) {
3964 struct hci_cp_remote_oob_ext_data_reply cp;
3965
3966 bacpy(&cp.bdaddr, &ev->bdaddr);
3967 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
3968 memcpy(cp.randomizer192, data->randomizer192,
3969 sizeof(cp.randomizer192));
3970 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
3971 memcpy(cp.randomizer256, data->randomizer256,
3972 sizeof(cp.randomizer256));
3973
3974 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
3975 sizeof(cp), &cp);
3976 } else {
3977 struct hci_cp_remote_oob_data_reply cp;
3978
3979 bacpy(&cp.bdaddr, &ev->bdaddr);
3980 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
3981 memcpy(cp.randomizer, data->randomizer192,
3982 sizeof(cp.randomizer));
3983
3984 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
3985 sizeof(cp), &cp);
3986 }
3987 } else {
3988 struct hci_cp_remote_oob_data_neg_reply cp;
3989
3990 bacpy(&cp.bdaddr, &ev->bdaddr);
3991 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
3992 sizeof(cp), &cp);
3993 }
3994
3995 unlock:
3996 hci_dev_unlock(hdev);
3997 }
3998
3999 static void hci_phy_link_complete_evt(struct hci_dev *hdev,
4000 struct sk_buff *skb)
4001 {
4002 struct hci_ev_phy_link_complete *ev = (void *) skb->data;
4003 struct hci_conn *hcon, *bredr_hcon;
4004
4005 BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
4006 ev->status);
4007
4008 hci_dev_lock(hdev);
4009
4010 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4011 if (!hcon) {
4012 hci_dev_unlock(hdev);
4013 return;
4014 }
4015
4016 if (ev->status) {
4017 hci_conn_del(hcon);
4018 hci_dev_unlock(hdev);
4019 return;
4020 }
4021
4022 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
4023
4024 hcon->state = BT_CONNECTED;
4025 bacpy(&hcon->dst, &bredr_hcon->dst);
4026
4027 hci_conn_hold(hcon);
4028 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
4029 hci_conn_drop(hcon);
4030
4031 hci_conn_add_sysfs(hcon);
4032
4033 amp_physical_cfm(bredr_hcon, hcon);
4034
4035 hci_dev_unlock(hdev);
4036 }
4037
4038 static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4039 {
4040 struct hci_ev_logical_link_complete *ev = (void *) skb->data;
4041 struct hci_conn *hcon;
4042 struct hci_chan *hchan;
4043 struct amp_mgr *mgr;
4044
4045 BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
4046 hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
4047 ev->status);
4048
4049 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4050 if (!hcon)
4051 return;
4052
4053 /* Create AMP hchan */
4054 hchan = hci_chan_create(hcon);
4055 if (!hchan)
4056 return;
4057
4058 hchan->handle = le16_to_cpu(ev->handle);
4059
4060 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
4061
4062 mgr = hcon->amp_mgr;
4063 if (mgr && mgr->bredr_chan) {
4064 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
4065
4066 l2cap_chan_lock(bredr_chan);
4067
4068 bredr_chan->conn->mtu = hdev->block_mtu;
4069 l2cap_logical_cfm(bredr_chan, hchan, 0);
4070 hci_conn_hold(hcon);
4071
4072 l2cap_chan_unlock(bredr_chan);
4073 }
4074 }
4075
4076 static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
4077 struct sk_buff *skb)
4078 {
4079 struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
4080 struct hci_chan *hchan;
4081
4082 BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
4083 le16_to_cpu(ev->handle), ev->status);
4084
4085 if (ev->status)
4086 return;
4087
4088 hci_dev_lock(hdev);
4089
4090 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
4091 if (!hchan)
4092 goto unlock;
4093
4094 amp_destroy_logical_link(hchan, ev->reason);
4095
4096 unlock:
4097 hci_dev_unlock(hdev);
4098 }
4099
4100 static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
4101 struct sk_buff *skb)
4102 {
4103 struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
4104 struct hci_conn *hcon;
4105
4106 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4107
4108 if (ev->status)
4109 return;
4110
4111 hci_dev_lock(hdev);
4112
4113 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4114 if (hcon) {
4115 hcon->state = BT_CLOSED;
4116 hci_conn_del(hcon);
4117 }
4118
4119 hci_dev_unlock(hdev);
4120 }
4121
4122 static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4123 {
4124 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
4125 struct hci_conn_params *params;
4126 struct hci_conn *conn;
4127 struct smp_irk *irk;
4128 u8 addr_type;
4129
4130 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4131
4132 hci_dev_lock(hdev);
4133
4134 /* All controllers implicitly stop advertising in the event of a
4135 * connection, so ensure that the state bit is cleared.
4136 */
4137 clear_bit(HCI_LE_ADV, &hdev->dev_flags);
4138
4139 conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
4140 if (!conn) {
4141 conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr, ev->role);
4142 if (!conn) {
4143 BT_ERR("No memory for new connection");
4144 goto unlock;
4145 }
4146
4147 conn->dst_type = ev->bdaddr_type;
4148
4149 /* If we didn't have a hci_conn object previously
4150 * but we're in master role this must be something
4151 * initiated using a white list. Since white list based
4152 * connections are not "first class citizens" we don't
4153 * have full tracking of them. Therefore, we go ahead
4154 * with a "best effort" approach of determining the
4155 * initiator address based on the HCI_PRIVACY flag.
4156 */
4157 if (conn->out) {
4158 conn->resp_addr_type = ev->bdaddr_type;
4159 bacpy(&conn->resp_addr, &ev->bdaddr);
4160 if (test_bit(HCI_PRIVACY, &hdev->dev_flags)) {
4161 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
4162 bacpy(&conn->init_addr, &hdev->rpa);
4163 } else {
4164 hci_copy_identity_address(hdev,
4165 &conn->init_addr,
4166 &conn->init_addr_type);
4167 }
4168 }
4169 } else {
4170 cancel_delayed_work(&conn->le_conn_timeout);
4171 }
4172
4173 if (!conn->out) {
4174 /* Set the responder (our side) address type based on
4175 * the advertising address type.
4176 */
4177 conn->resp_addr_type = hdev->adv_addr_type;
4178 if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM)
4179 bacpy(&conn->resp_addr, &hdev->random_addr);
4180 else
4181 bacpy(&conn->resp_addr, &hdev->bdaddr);
4182
4183 conn->init_addr_type = ev->bdaddr_type;
4184 bacpy(&conn->init_addr, &ev->bdaddr);
4185
4186 /* For incoming connections, set the default minimum
4187 * and maximum connection interval. They will be used
4188 * to check if the parameters are in range and if not
4189 * trigger the connection update procedure.
4190 */
4191 conn->le_conn_min_interval = hdev->le_conn_min_interval;
4192 conn->le_conn_max_interval = hdev->le_conn_max_interval;
4193 }
4194
4195 /* Lookup the identity address from the stored connection
4196 * address and address type.
4197 *
4198 * When establishing connections to an identity address, the
4199 * connection procedure will store the resolvable random
4200 * address first. Now if it can be converted back into the
4201 * identity address, start using the identity address from
4202 * now on.
4203 */
4204 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
4205 if (irk) {
4206 bacpy(&conn->dst, &irk->bdaddr);
4207 conn->dst_type = irk->addr_type;
4208 }
4209
4210 if (ev->status) {
4211 hci_le_conn_failed(conn, ev->status);
4212 goto unlock;
4213 }
4214
4215 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
4216 addr_type = BDADDR_LE_PUBLIC;
4217 else
4218 addr_type = BDADDR_LE_RANDOM;
4219
4220 /* Drop the connection if the device is blocked */
4221 if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) {
4222 hci_conn_drop(conn);
4223 goto unlock;
4224 }
4225
4226 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
4227 mgmt_device_connected(hdev, &conn->dst, conn->type,
4228 conn->dst_type, 0, NULL, 0, NULL);
4229
4230 conn->sec_level = BT_SECURITY_LOW;
4231 conn->handle = __le16_to_cpu(ev->handle);
4232 conn->state = BT_CONNECTED;
4233
4234 conn->le_conn_interval = le16_to_cpu(ev->interval);
4235 conn->le_conn_latency = le16_to_cpu(ev->latency);
4236 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4237
4238 hci_conn_add_sysfs(conn);
4239
4240 hci_proto_connect_cfm(conn, ev->status);
4241
4242 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
4243 conn->dst_type);
4244 if (params) {
4245 list_del_init(&params->action);
4246 if (params->conn) {
4247 hci_conn_drop(params->conn);
4248 hci_conn_put(params->conn);
4249 params->conn = NULL;
4250 }
4251 }
4252
4253 unlock:
4254 hci_update_background_scan(hdev);
4255 hci_dev_unlock(hdev);
4256 }
4257
4258 static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
4259 struct sk_buff *skb)
4260 {
4261 struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
4262 struct hci_conn *conn;
4263
4264 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4265
4266 if (ev->status)
4267 return;
4268
4269 hci_dev_lock(hdev);
4270
4271 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4272 if (conn) {
4273 conn->le_conn_interval = le16_to_cpu(ev->interval);
4274 conn->le_conn_latency = le16_to_cpu(ev->latency);
4275 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4276 }
4277
4278 hci_dev_unlock(hdev);
4279 }
4280
4281 /* This function requires the caller holds hdev->lock */
4282 static void check_pending_le_conn(struct hci_dev *hdev, bdaddr_t *addr,
4283 u8 addr_type, u8 adv_type)
4284 {
4285 struct hci_conn *conn;
4286 struct hci_conn_params *params;
4287
4288 /* If the event is not connectable don't proceed further */
4289 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
4290 return;
4291
4292 /* Ignore if the device is blocked */
4293 if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type))
4294 return;
4295
4296 /* Most controller will fail if we try to create new connections
4297 * while we have an existing one in slave role.
4298 */
4299 if (hdev->conn_hash.le_num_slave > 0)
4300 return;
4301
4302 /* If we're not connectable only connect devices that we have in
4303 * our pend_le_conns list.
4304 */
4305 params = hci_pend_le_action_lookup(&hdev->pend_le_conns,
4306 addr, addr_type);
4307 if (!params)
4308 return;
4309
4310 switch (params->auto_connect) {
4311 case HCI_AUTO_CONN_DIRECT:
4312 /* Only devices advertising with ADV_DIRECT_IND are
4313 * triggering a connection attempt. This is allowing
4314 * incoming connections from slave devices.
4315 */
4316 if (adv_type != LE_ADV_DIRECT_IND)
4317 return;
4318 break;
4319 case HCI_AUTO_CONN_ALWAYS:
4320 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
4321 * are triggering a connection attempt. This means
4322 * that incoming connectioms from slave device are
4323 * accepted and also outgoing connections to slave
4324 * devices are established when found.
4325 */
4326 break;
4327 default:
4328 return;
4329 }
4330
4331 conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
4332 HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER);
4333 if (!IS_ERR(conn)) {
4334 /* Store the pointer since we don't really have any
4335 * other owner of the object besides the params that
4336 * triggered it. This way we can abort the connection if
4337 * the parameters get removed and keep the reference
4338 * count consistent once the connection is established.
4339 */
4340 params->conn = hci_conn_get(conn);
4341 return;
4342 }
4343
4344 switch (PTR_ERR(conn)) {
4345 case -EBUSY:
4346 /* If hci_connect() returns -EBUSY it means there is already
4347 * an LE connection attempt going on. Since controllers don't
4348 * support more than one connection attempt at the time, we
4349 * don't consider this an error case.
4350 */
4351 break;
4352 default:
4353 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
4354 }
4355 }
4356
4357 static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
4358 u8 bdaddr_type, s8 rssi, u8 *data, u8 len)
4359 {
4360 struct discovery_state *d = &hdev->discovery;
4361 struct smp_irk *irk;
4362 bool match;
4363 u32 flags;
4364
4365 /* Check if we need to convert to identity address */
4366 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
4367 if (irk) {
4368 bdaddr = &irk->bdaddr;
4369 bdaddr_type = irk->addr_type;
4370 }
4371
4372 /* Check if we have been requested to connect to this device */
4373 check_pending_le_conn(hdev, bdaddr, bdaddr_type, type);
4374
4375 /* Passive scanning shouldn't trigger any device found events,
4376 * except for devices marked as CONN_REPORT for which we do send
4377 * device found events.
4378 */
4379 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
4380 if (type == LE_ADV_DIRECT_IND)
4381 return;
4382
4383 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
4384 bdaddr, bdaddr_type))
4385 return;
4386
4387 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
4388 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4389 else
4390 flags = 0;
4391 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4392 rssi, flags, data, len, NULL, 0);
4393 return;
4394 }
4395
4396 /* When receiving non-connectable or scannable undirected
4397 * advertising reports, this means that the remote device is
4398 * not connectable and then clearly indicate this in the
4399 * device found event.
4400 *
4401 * When receiving a scan response, then there is no way to
4402 * know if the remote device is connectable or not. However
4403 * since scan responses are merged with a previously seen
4404 * advertising report, the flags field from that report
4405 * will be used.
4406 *
4407 * In the really unlikely case that a controller get confused
4408 * and just sends a scan response event, then it is marked as
4409 * not connectable as well.
4410 */
4411 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND ||
4412 type == LE_ADV_SCAN_RSP)
4413 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4414 else
4415 flags = 0;
4416
4417 /* If there's nothing pending either store the data from this
4418 * event or send an immediate device found event if the data
4419 * should not be stored for later.
4420 */
4421 if (!has_pending_adv_report(hdev)) {
4422 /* If the report will trigger a SCAN_REQ store it for
4423 * later merging.
4424 */
4425 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4426 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
4427 rssi, flags, data, len);
4428 return;
4429 }
4430
4431 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4432 rssi, flags, data, len, NULL, 0);
4433 return;
4434 }
4435
4436 /* Check if the pending report is for the same device as the new one */
4437 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
4438 bdaddr_type == d->last_adv_addr_type);
4439
4440 /* If the pending data doesn't match this report or this isn't a
4441 * scan response (e.g. we got a duplicate ADV_IND) then force
4442 * sending of the pending data.
4443 */
4444 if (type != LE_ADV_SCAN_RSP || !match) {
4445 /* Send out whatever is in the cache, but skip duplicates */
4446 if (!match)
4447 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
4448 d->last_adv_addr_type, NULL,
4449 d->last_adv_rssi, d->last_adv_flags,
4450 d->last_adv_data,
4451 d->last_adv_data_len, NULL, 0);
4452
4453 /* If the new report will trigger a SCAN_REQ store it for
4454 * later merging.
4455 */
4456 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4457 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
4458 rssi, flags, data, len);
4459 return;
4460 }
4461
4462 /* The advertising reports cannot be merged, so clear
4463 * the pending report and send out a device found event.
4464 */
4465 clear_pending_adv_report(hdev);
4466 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4467 rssi, flags, data, len, NULL, 0);
4468 return;
4469 }
4470
4471 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
4472 * the new event is a SCAN_RSP. We can therefore proceed with
4473 * sending a merged device found event.
4474 */
4475 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
4476 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
4477 d->last_adv_data, d->last_adv_data_len, data, len);
4478 clear_pending_adv_report(hdev);
4479 }
4480
4481 static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
4482 {
4483 u8 num_reports = skb->data[0];
4484 void *ptr = &skb->data[1];
4485
4486 hci_dev_lock(hdev);
4487
4488 while (num_reports--) {
4489 struct hci_ev_le_advertising_info *ev = ptr;
4490 s8 rssi;
4491
4492 rssi = ev->data[ev->length];
4493 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
4494 ev->bdaddr_type, rssi, ev->data, ev->length);
4495
4496 ptr += sizeof(*ev) + ev->length + 1;
4497 }
4498
4499 hci_dev_unlock(hdev);
4500 }
4501
4502 static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
4503 {
4504 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
4505 struct hci_cp_le_ltk_reply cp;
4506 struct hci_cp_le_ltk_neg_reply neg;
4507 struct hci_conn *conn;
4508 struct smp_ltk *ltk;
4509
4510 BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle));
4511
4512 hci_dev_lock(hdev);
4513
4514 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4515 if (conn == NULL)
4516 goto not_found;
4517
4518 ltk = hci_find_ltk(hdev, ev->ediv, ev->rand, conn->role);
4519 if (ltk == NULL)
4520 goto not_found;
4521
4522 memcpy(cp.ltk, ltk->val, sizeof(ltk->val));
4523 cp.handle = cpu_to_le16(conn->handle);
4524
4525 conn->pending_sec_level = smp_ltk_sec_level(ltk);
4526
4527 conn->enc_key_size = ltk->enc_size;
4528
4529 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
4530
4531 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
4532 * temporary key used to encrypt a connection following
4533 * pairing. It is used during the Encrypted Session Setup to
4534 * distribute the keys. Later, security can be re-established
4535 * using a distributed LTK.
4536 */
4537 if (ltk->type == SMP_STK) {
4538 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
4539 list_del(&ltk->list);
4540 kfree(ltk);
4541 } else {
4542 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
4543 }
4544
4545 hci_dev_unlock(hdev);
4546
4547 return;
4548
4549 not_found:
4550 neg.handle = ev->handle;
4551 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
4552 hci_dev_unlock(hdev);
4553 }
4554
4555 static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
4556 u8 reason)
4557 {
4558 struct hci_cp_le_conn_param_req_neg_reply cp;
4559
4560 cp.handle = cpu_to_le16(handle);
4561 cp.reason = reason;
4562
4563 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
4564 &cp);
4565 }
4566
4567 static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
4568 struct sk_buff *skb)
4569 {
4570 struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data;
4571 struct hci_cp_le_conn_param_req_reply cp;
4572 struct hci_conn *hcon;
4573 u16 handle, min, max, latency, timeout;
4574
4575 handle = le16_to_cpu(ev->handle);
4576 min = le16_to_cpu(ev->interval_min);
4577 max = le16_to_cpu(ev->interval_max);
4578 latency = le16_to_cpu(ev->latency);
4579 timeout = le16_to_cpu(ev->timeout);
4580
4581 hcon = hci_conn_hash_lookup_handle(hdev, handle);
4582 if (!hcon || hcon->state != BT_CONNECTED)
4583 return send_conn_param_neg_reply(hdev, handle,
4584 HCI_ERROR_UNKNOWN_CONN_ID);
4585
4586 if (hci_check_conn_params(min, max, latency, timeout))
4587 return send_conn_param_neg_reply(hdev, handle,
4588 HCI_ERROR_INVALID_LL_PARAMS);
4589
4590 if (hcon->role == HCI_ROLE_MASTER) {
4591 struct hci_conn_params *params;
4592 u8 store_hint;
4593
4594 hci_dev_lock(hdev);
4595
4596 params = hci_conn_params_lookup(hdev, &hcon->dst,
4597 hcon->dst_type);
4598 if (params) {
4599 params->conn_min_interval = min;
4600 params->conn_max_interval = max;
4601 params->conn_latency = latency;
4602 params->supervision_timeout = timeout;
4603 store_hint = 0x01;
4604 } else{
4605 store_hint = 0x00;
4606 }
4607
4608 hci_dev_unlock(hdev);
4609
4610 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
4611 store_hint, min, max, latency, timeout);
4612 }
4613
4614 cp.handle = ev->handle;
4615 cp.interval_min = ev->interval_min;
4616 cp.interval_max = ev->interval_max;
4617 cp.latency = ev->latency;
4618 cp.timeout = ev->timeout;
4619 cp.min_ce_len = 0;
4620 cp.max_ce_len = 0;
4621
4622 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
4623 }
4624
4625 static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
4626 {
4627 struct hci_ev_le_meta *le_ev = (void *) skb->data;
4628
4629 skb_pull(skb, sizeof(*le_ev));
4630
4631 switch (le_ev->subevent) {
4632 case HCI_EV_LE_CONN_COMPLETE:
4633 hci_le_conn_complete_evt(hdev, skb);
4634 break;
4635
4636 case HCI_EV_LE_CONN_UPDATE_COMPLETE:
4637 hci_le_conn_update_complete_evt(hdev, skb);
4638 break;
4639
4640 case HCI_EV_LE_ADVERTISING_REPORT:
4641 hci_le_adv_report_evt(hdev, skb);
4642 break;
4643
4644 case HCI_EV_LE_LTK_REQ:
4645 hci_le_ltk_request_evt(hdev, skb);
4646 break;
4647
4648 case HCI_EV_LE_REMOTE_CONN_PARAM_REQ:
4649 hci_le_remote_conn_param_req_evt(hdev, skb);
4650 break;
4651
4652 default:
4653 break;
4654 }
4655 }
4656
4657 static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
4658 {
4659 struct hci_ev_channel_selected *ev = (void *) skb->data;
4660 struct hci_conn *hcon;
4661
4662 BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);
4663
4664 skb_pull(skb, sizeof(*ev));
4665
4666 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4667 if (!hcon)
4668 return;
4669
4670 amp_read_loc_assoc_final_data(hdev, hcon);
4671 }
4672
4673 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
4674 {
4675 struct hci_event_hdr *hdr = (void *) skb->data;
4676 __u8 event = hdr->evt;
4677
4678 hci_dev_lock(hdev);
4679
4680 /* Received events are (currently) only needed when a request is
4681 * ongoing so avoid unnecessary memory allocation.
4682 */
4683 if (hci_req_pending(hdev)) {
4684 kfree_skb(hdev->recv_evt);
4685 hdev->recv_evt = skb_clone(skb, GFP_KERNEL);
4686 }
4687
4688 hci_dev_unlock(hdev);
4689
4690 skb_pull(skb, HCI_EVENT_HDR_SIZE);
4691
4692 if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) {
4693 struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
4694 u16 opcode = __le16_to_cpu(cmd_hdr->opcode);
4695
4696 hci_req_cmd_complete(hdev, opcode, 0);
4697 }
4698
4699 switch (event) {
4700 case HCI_EV_INQUIRY_COMPLETE:
4701 hci_inquiry_complete_evt(hdev, skb);
4702 break;
4703
4704 case HCI_EV_INQUIRY_RESULT:
4705 hci_inquiry_result_evt(hdev, skb);
4706 break;
4707
4708 case HCI_EV_CONN_COMPLETE:
4709 hci_conn_complete_evt(hdev, skb);
4710 break;
4711
4712 case HCI_EV_CONN_REQUEST:
4713 hci_conn_request_evt(hdev, skb);
4714 break;
4715
4716 case HCI_EV_DISCONN_COMPLETE:
4717 hci_disconn_complete_evt(hdev, skb);
4718 break;
4719
4720 case HCI_EV_AUTH_COMPLETE:
4721 hci_auth_complete_evt(hdev, skb);
4722 break;
4723
4724 case HCI_EV_REMOTE_NAME:
4725 hci_remote_name_evt(hdev, skb);
4726 break;
4727
4728 case HCI_EV_ENCRYPT_CHANGE:
4729 hci_encrypt_change_evt(hdev, skb);
4730 break;
4731
4732 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
4733 hci_change_link_key_complete_evt(hdev, skb);
4734 break;
4735
4736 case HCI_EV_REMOTE_FEATURES:
4737 hci_remote_features_evt(hdev, skb);
4738 break;
4739
4740 case HCI_EV_CMD_COMPLETE:
4741 hci_cmd_complete_evt(hdev, skb);
4742 break;
4743
4744 case HCI_EV_CMD_STATUS:
4745 hci_cmd_status_evt(hdev, skb);
4746 break;
4747
4748 case HCI_EV_ROLE_CHANGE:
4749 hci_role_change_evt(hdev, skb);
4750 break;
4751
4752 case HCI_EV_NUM_COMP_PKTS:
4753 hci_num_comp_pkts_evt(hdev, skb);
4754 break;
4755
4756 case HCI_EV_MODE_CHANGE:
4757 hci_mode_change_evt(hdev, skb);
4758 break;
4759
4760 case HCI_EV_PIN_CODE_REQ:
4761 hci_pin_code_request_evt(hdev, skb);
4762 break;
4763
4764 case HCI_EV_LINK_KEY_REQ:
4765 hci_link_key_request_evt(hdev, skb);
4766 break;
4767
4768 case HCI_EV_LINK_KEY_NOTIFY:
4769 hci_link_key_notify_evt(hdev, skb);
4770 break;
4771
4772 case HCI_EV_CLOCK_OFFSET:
4773 hci_clock_offset_evt(hdev, skb);
4774 break;
4775
4776 case HCI_EV_PKT_TYPE_CHANGE:
4777 hci_pkt_type_change_evt(hdev, skb);
4778 break;
4779
4780 case HCI_EV_PSCAN_REP_MODE:
4781 hci_pscan_rep_mode_evt(hdev, skb);
4782 break;
4783
4784 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
4785 hci_inquiry_result_with_rssi_evt(hdev, skb);
4786 break;
4787
4788 case HCI_EV_REMOTE_EXT_FEATURES:
4789 hci_remote_ext_features_evt(hdev, skb);
4790 break;
4791
4792 case HCI_EV_SYNC_CONN_COMPLETE:
4793 hci_sync_conn_complete_evt(hdev, skb);
4794 break;
4795
4796 case HCI_EV_EXTENDED_INQUIRY_RESULT:
4797 hci_extended_inquiry_result_evt(hdev, skb);
4798 break;
4799
4800 case HCI_EV_KEY_REFRESH_COMPLETE:
4801 hci_key_refresh_complete_evt(hdev, skb);
4802 break;
4803
4804 case HCI_EV_IO_CAPA_REQUEST:
4805 hci_io_capa_request_evt(hdev, skb);
4806 break;
4807
4808 case HCI_EV_IO_CAPA_REPLY:
4809 hci_io_capa_reply_evt(hdev, skb);
4810 break;
4811
4812 case HCI_EV_USER_CONFIRM_REQUEST:
4813 hci_user_confirm_request_evt(hdev, skb);
4814 break;
4815
4816 case HCI_EV_USER_PASSKEY_REQUEST:
4817 hci_user_passkey_request_evt(hdev, skb);
4818 break;
4819
4820 case HCI_EV_USER_PASSKEY_NOTIFY:
4821 hci_user_passkey_notify_evt(hdev, skb);
4822 break;
4823
4824 case HCI_EV_KEYPRESS_NOTIFY:
4825 hci_keypress_notify_evt(hdev, skb);
4826 break;
4827
4828 case HCI_EV_SIMPLE_PAIR_COMPLETE:
4829 hci_simple_pair_complete_evt(hdev, skb);
4830 break;
4831
4832 case HCI_EV_REMOTE_HOST_FEATURES:
4833 hci_remote_host_features_evt(hdev, skb);
4834 break;
4835
4836 case HCI_EV_LE_META:
4837 hci_le_meta_evt(hdev, skb);
4838 break;
4839
4840 case HCI_EV_CHANNEL_SELECTED:
4841 hci_chan_selected_evt(hdev, skb);
4842 break;
4843
4844 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
4845 hci_remote_oob_data_request_evt(hdev, skb);
4846 break;
4847
4848 case HCI_EV_PHY_LINK_COMPLETE:
4849 hci_phy_link_complete_evt(hdev, skb);
4850 break;
4851
4852 case HCI_EV_LOGICAL_LINK_COMPLETE:
4853 hci_loglink_complete_evt(hdev, skb);
4854 break;
4855
4856 case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
4857 hci_disconn_loglink_complete_evt(hdev, skb);
4858 break;
4859
4860 case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
4861 hci_disconn_phylink_complete_evt(hdev, skb);
4862 break;
4863
4864 case HCI_EV_NUM_COMP_BLOCKS:
4865 hci_num_comp_blocks_evt(hdev, skb);
4866 break;
4867
4868 default:
4869 BT_DBG("%s event 0x%2.2x", hdev->name, event);
4870 break;
4871 }
4872
4873 kfree_skb(skb);
4874 hdev->stat.evt_rx++;
4875 }
Linux with added FPC-III support