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Bluetooth: Check for flow control mode
[deliverable/linux.git] / net / bluetooth / hci_event.c
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1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25/* Bluetooth HCI event handling. */
26
27#include <linux/module.h>
28
29#include <linux/types.h>
30#include <linux/errno.h>
31#include <linux/kernel.h>
32#include <linux/slab.h>
33#include <linux/poll.h>
34#include <linux/fcntl.h>
35#include <linux/init.h>
36#include <linux/skbuff.h>
37#include <linux/interrupt.h>
38#include <linux/notifier.h>
39#include <net/sock.h>
40
41#include <asm/system.h>
42#include <linux/uaccess.h>
43#include <asm/unaligned.h>
44
45#include <net/bluetooth/bluetooth.h>
46#include <net/bluetooth/hci_core.h>
47
48static int enable_le;
49
50/* Handle HCI Event packets */
51
52static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
53{
54 __u8 status = *((__u8 *) skb->data);
55
56 BT_DBG("%s status 0x%x", hdev->name, status);
57
58 if (status) {
59 hci_dev_lock(hdev);
60 mgmt_stop_discovery_failed(hdev, status);
61 hci_dev_unlock(hdev);
62 return;
63 }
64
65 clear_bit(HCI_INQUIRY, &hdev->flags);
66
67 hci_dev_lock(hdev);
68 mgmt_discovering(hdev, 0);
69 hci_dev_unlock(hdev);
70
71 hci_req_complete(hdev, HCI_OP_INQUIRY_CANCEL, status);
72
73 hci_conn_check_pending(hdev);
74}
75
76static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
77{
78 __u8 status = *((__u8 *) skb->data);
79
80 BT_DBG("%s status 0x%x", hdev->name, status);
81
82 if (status)
83 return;
84
85 hci_conn_check_pending(hdev);
86}
87
88static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev, struct sk_buff *skb)
89{
90 BT_DBG("%s", hdev->name);
91}
92
93static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
94{
95 struct hci_rp_role_discovery *rp = (void *) skb->data;
96 struct hci_conn *conn;
97
98 BT_DBG("%s status 0x%x", hdev->name, rp->status);
99
100 if (rp->status)
101 return;
102
103 hci_dev_lock(hdev);
104
105 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
106 if (conn) {
107 if (rp->role)
108 conn->link_mode &= ~HCI_LM_MASTER;
109 else
110 conn->link_mode |= HCI_LM_MASTER;
111 }
112
113 hci_dev_unlock(hdev);
114}
115
116static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
117{
118 struct hci_rp_read_link_policy *rp = (void *) skb->data;
119 struct hci_conn *conn;
120
121 BT_DBG("%s status 0x%x", hdev->name, rp->status);
122
123 if (rp->status)
124 return;
125
126 hci_dev_lock(hdev);
127
128 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
129 if (conn)
130 conn->link_policy = __le16_to_cpu(rp->policy);
131
132 hci_dev_unlock(hdev);
133}
134
135static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
136{
137 struct hci_rp_write_link_policy *rp = (void *) skb->data;
138 struct hci_conn *conn;
139 void *sent;
140
141 BT_DBG("%s status 0x%x", hdev->name, rp->status);
142
143 if (rp->status)
144 return;
145
146 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
147 if (!sent)
148 return;
149
150 hci_dev_lock(hdev);
151
152 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
153 if (conn)
154 conn->link_policy = get_unaligned_le16(sent + 2);
155
156 hci_dev_unlock(hdev);
157}
158
159static void hci_cc_read_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
160{
161 struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
162
163 BT_DBG("%s status 0x%x", hdev->name, rp->status);
164
165 if (rp->status)
166 return;
167
168 hdev->link_policy = __le16_to_cpu(rp->policy);
169}
170
171static void hci_cc_write_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
172{
173 __u8 status = *((__u8 *) skb->data);
174 void *sent;
175
176 BT_DBG("%s status 0x%x", hdev->name, status);
177
178 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
179 if (!sent)
180 return;
181
182 if (!status)
183 hdev->link_policy = get_unaligned_le16(sent);
184
185 hci_req_complete(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, status);
186}
187
188static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
189{
190 __u8 status = *((__u8 *) skb->data);
191
192 BT_DBG("%s status 0x%x", hdev->name, status);
193
194 clear_bit(HCI_RESET, &hdev->flags);
195
196 hci_req_complete(hdev, HCI_OP_RESET, status);
197
198 hdev->dev_flags = 0;
199}
200
201static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
202{
203 __u8 status = *((__u8 *) skb->data);
204 void *sent;
205
206 BT_DBG("%s status 0x%x", hdev->name, status);
207
208 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
209 if (!sent)
210 return;
211
212 hci_dev_lock(hdev);
213
214 if (test_bit(HCI_MGMT, &hdev->flags))
215 mgmt_set_local_name_complete(hdev, sent, status);
216
217 if (status == 0)
218 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
219
220 hci_dev_unlock(hdev);
221}
222
223static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
224{
225 struct hci_rp_read_local_name *rp = (void *) skb->data;
226
227 BT_DBG("%s status 0x%x", hdev->name, rp->status);
228
229 if (rp->status)
230 return;
231
232 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
233}
234
235static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
236{
237 __u8 status = *((__u8 *) skb->data);
238 void *sent;
239
240 BT_DBG("%s status 0x%x", hdev->name, status);
241
242 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
243 if (!sent)
244 return;
245
246 if (!status) {
247 __u8 param = *((__u8 *) sent);
248
249 if (param == AUTH_ENABLED)
250 set_bit(HCI_AUTH, &hdev->flags);
251 else
252 clear_bit(HCI_AUTH, &hdev->flags);
253 }
254
255 hci_req_complete(hdev, HCI_OP_WRITE_AUTH_ENABLE, status);
256}
257
258static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
259{
260 __u8 status = *((__u8 *) skb->data);
261 void *sent;
262
263 BT_DBG("%s status 0x%x", hdev->name, status);
264
265 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
266 if (!sent)
267 return;
268
269 if (!status) {
270 __u8 param = *((__u8 *) sent);
271
272 if (param)
273 set_bit(HCI_ENCRYPT, &hdev->flags);
274 else
275 clear_bit(HCI_ENCRYPT, &hdev->flags);
276 }
277
278 hci_req_complete(hdev, HCI_OP_WRITE_ENCRYPT_MODE, status);
279}
280
281static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
282{
283 __u8 param, status = *((__u8 *) skb->data);
284 int old_pscan, old_iscan;
285 void *sent;
286
287 BT_DBG("%s status 0x%x", hdev->name, status);
288
289 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
290 if (!sent)
291 return;
292
293 param = *((__u8 *) sent);
294
295 hci_dev_lock(hdev);
296
297 if (status != 0) {
298 mgmt_write_scan_failed(hdev, param, status);
299 hdev->discov_timeout = 0;
300 goto done;
301 }
302
303 old_pscan = test_and_clear_bit(HCI_PSCAN, &hdev->flags);
304 old_iscan = test_and_clear_bit(HCI_ISCAN, &hdev->flags);
305
306 if (param & SCAN_INQUIRY) {
307 set_bit(HCI_ISCAN, &hdev->flags);
308 if (!old_iscan)
309 mgmt_discoverable(hdev, 1);
310 if (hdev->discov_timeout > 0) {
311 int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
312 queue_delayed_work(hdev->workqueue, &hdev->discov_off,
313 to);
314 }
315 } else if (old_iscan)
316 mgmt_discoverable(hdev, 0);
317
318 if (param & SCAN_PAGE) {
319 set_bit(HCI_PSCAN, &hdev->flags);
320 if (!old_pscan)
321 mgmt_connectable(hdev, 1);
322 } else if (old_pscan)
323 mgmt_connectable(hdev, 0);
324
325done:
326 hci_dev_unlock(hdev);
327 hci_req_complete(hdev, HCI_OP_WRITE_SCAN_ENABLE, status);
328}
329
330static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
331{
332 struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
333
334 BT_DBG("%s status 0x%x", hdev->name, rp->status);
335
336 if (rp->status)
337 return;
338
339 memcpy(hdev->dev_class, rp->dev_class, 3);
340
341 BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
342 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
343}
344
345static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
346{
347 __u8 status = *((__u8 *) skb->data);
348 void *sent;
349
350 BT_DBG("%s status 0x%x", hdev->name, status);
351
352 if (status)
353 return;
354
355 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
356 if (!sent)
357 return;
358
359 memcpy(hdev->dev_class, sent, 3);
360}
361
362static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
363{
364 struct hci_rp_read_voice_setting *rp = (void *) skb->data;
365 __u16 setting;
366
367 BT_DBG("%s status 0x%x", hdev->name, rp->status);
368
369 if (rp->status)
370 return;
371
372 setting = __le16_to_cpu(rp->voice_setting);
373
374 if (hdev->voice_setting == setting)
375 return;
376
377 hdev->voice_setting = setting;
378
379 BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
380
381 if (hdev->notify)
382 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
383}
384
385static void hci_cc_write_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
386{
387 __u8 status = *((__u8 *) skb->data);
388 __u16 setting;
389 void *sent;
390
391 BT_DBG("%s status 0x%x", hdev->name, status);
392
393 if (status)
394 return;
395
396 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
397 if (!sent)
398 return;
399
400 setting = get_unaligned_le16(sent);
401
402 if (hdev->voice_setting == setting)
403 return;
404
405 hdev->voice_setting = setting;
406
407 BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
408
409 if (hdev->notify)
410 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
411}
412
413static void hci_cc_host_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
414{
415 __u8 status = *((__u8 *) skb->data);
416
417 BT_DBG("%s status 0x%x", hdev->name, status);
418
419 hci_req_complete(hdev, HCI_OP_HOST_BUFFER_SIZE, status);
420}
421
422static void hci_cc_read_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
423{
424 struct hci_rp_read_ssp_mode *rp = (void *) skb->data;
425
426 BT_DBG("%s status 0x%x", hdev->name, rp->status);
427
428 if (rp->status)
429 return;
430
431 hdev->ssp_mode = rp->mode;
432}
433
434static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
435{
436 __u8 status = *((__u8 *) skb->data);
437 void *sent;
438
439 BT_DBG("%s status 0x%x", hdev->name, status);
440
441 if (status)
442 return;
443
444 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
445 if (!sent)
446 return;
447
448 hdev->ssp_mode = *((__u8 *) sent);
449}
450
451static u8 hci_get_inquiry_mode(struct hci_dev *hdev)
452{
453 if (hdev->features[6] & LMP_EXT_INQ)
454 return 2;
455
456 if (hdev->features[3] & LMP_RSSI_INQ)
457 return 1;
458
459 if (hdev->manufacturer == 11 && hdev->hci_rev == 0x00 &&
460 hdev->lmp_subver == 0x0757)
461 return 1;
462
463 if (hdev->manufacturer == 15) {
464 if (hdev->hci_rev == 0x03 && hdev->lmp_subver == 0x6963)
465 return 1;
466 if (hdev->hci_rev == 0x09 && hdev->lmp_subver == 0x6963)
467 return 1;
468 if (hdev->hci_rev == 0x00 && hdev->lmp_subver == 0x6965)
469 return 1;
470 }
471
472 if (hdev->manufacturer == 31 && hdev->hci_rev == 0x2005 &&
473 hdev->lmp_subver == 0x1805)
474 return 1;
475
476 return 0;
477}
478
479static void hci_setup_inquiry_mode(struct hci_dev *hdev)
480{
481 u8 mode;
482
483 mode = hci_get_inquiry_mode(hdev);
484
485 hci_send_cmd(hdev, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode);
486}
487
488static void hci_setup_event_mask(struct hci_dev *hdev)
489{
490 /* The second byte is 0xff instead of 0x9f (two reserved bits
491 * disabled) since a Broadcom 1.2 dongle doesn't respond to the
492 * command otherwise */
493 u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 };
494
495 /* CSR 1.1 dongles does not accept any bitfield so don't try to set
496 * any event mask for pre 1.2 devices */
497 if (hdev->hci_ver < BLUETOOTH_VER_1_2)
498 return;
499
500 events[4] |= 0x01; /* Flow Specification Complete */
501 events[4] |= 0x02; /* Inquiry Result with RSSI */
502 events[4] |= 0x04; /* Read Remote Extended Features Complete */
503 events[5] |= 0x08; /* Synchronous Connection Complete */
504 events[5] |= 0x10; /* Synchronous Connection Changed */
505
506 if (hdev->features[3] & LMP_RSSI_INQ)
507 events[4] |= 0x04; /* Inquiry Result with RSSI */
508
509 if (hdev->features[5] & LMP_SNIFF_SUBR)
510 events[5] |= 0x20; /* Sniff Subrating */
511
512 if (hdev->features[5] & LMP_PAUSE_ENC)
513 events[5] |= 0x80; /* Encryption Key Refresh Complete */
514
515 if (hdev->features[6] & LMP_EXT_INQ)
516 events[5] |= 0x40; /* Extended Inquiry Result */
517
518 if (hdev->features[6] & LMP_NO_FLUSH)
519 events[7] |= 0x01; /* Enhanced Flush Complete */
520
521 if (hdev->features[7] & LMP_LSTO)
522 events[6] |= 0x80; /* Link Supervision Timeout Changed */
523
524 if (hdev->features[6] & LMP_SIMPLE_PAIR) {
525 events[6] |= 0x01; /* IO Capability Request */
526 events[6] |= 0x02; /* IO Capability Response */
527 events[6] |= 0x04; /* User Confirmation Request */
528 events[6] |= 0x08; /* User Passkey Request */
529 events[6] |= 0x10; /* Remote OOB Data Request */
530 events[6] |= 0x20; /* Simple Pairing Complete */
531 events[7] |= 0x04; /* User Passkey Notification */
532 events[7] |= 0x08; /* Keypress Notification */
533 events[7] |= 0x10; /* Remote Host Supported
534 * Features Notification */
535 }
536
537 if (hdev->features[4] & LMP_LE)
538 events[7] |= 0x20; /* LE Meta-Event */
539
540 hci_send_cmd(hdev, HCI_OP_SET_EVENT_MASK, sizeof(events), events);
541}
542
543static void hci_set_le_support(struct hci_dev *hdev)
544{
545 struct hci_cp_write_le_host_supported cp;
546
547 memset(&cp, 0, sizeof(cp));
548
549 if (enable_le) {
550 cp.le = 1;
551 cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
552 }
553
554 hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp), &cp);
555}
556
557static void hci_setup(struct hci_dev *hdev)
558{
559 if (hdev->dev_type != HCI_BREDR)
560 return;
561
562 hci_setup_event_mask(hdev);
563
564 if (hdev->hci_ver > BLUETOOTH_VER_1_1)
565 hci_send_cmd(hdev, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
566
567 if (hdev->features[6] & LMP_SIMPLE_PAIR) {
568 u8 mode = 0x01;
569 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, sizeof(mode), &mode);
570 }
571
572 if (hdev->features[3] & LMP_RSSI_INQ)
573 hci_setup_inquiry_mode(hdev);
574
575 if (hdev->features[7] & LMP_INQ_TX_PWR)
576 hci_send_cmd(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);
577
578 if (hdev->features[7] & LMP_EXTFEATURES) {
579 struct hci_cp_read_local_ext_features cp;
580
581 cp.page = 0x01;
582 hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES,
583 sizeof(cp), &cp);
584 }
585
586 if (hdev->features[4] & LMP_LE)
587 hci_set_le_support(hdev);
588}
589
590static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
591{
592 struct hci_rp_read_local_version *rp = (void *) skb->data;
593
594 BT_DBG("%s status 0x%x", hdev->name, rp->status);
595
596 if (rp->status)
597 return;
598
599 hdev->hci_ver = rp->hci_ver;
600 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
601 hdev->lmp_ver = rp->lmp_ver;
602 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
603 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
604
605 BT_DBG("%s manufacturer %d hci ver %d:%d", hdev->name,
606 hdev->manufacturer,
607 hdev->hci_ver, hdev->hci_rev);
608
609 if (test_bit(HCI_INIT, &hdev->flags))
610 hci_setup(hdev);
611}
612
613static void hci_setup_link_policy(struct hci_dev *hdev)
614{
615 u16 link_policy = 0;
616
617 if (hdev->features[0] & LMP_RSWITCH)
618 link_policy |= HCI_LP_RSWITCH;
619 if (hdev->features[0] & LMP_HOLD)
620 link_policy |= HCI_LP_HOLD;
621 if (hdev->features[0] & LMP_SNIFF)
622 link_policy |= HCI_LP_SNIFF;
623 if (hdev->features[1] & LMP_PARK)
624 link_policy |= HCI_LP_PARK;
625
626 link_policy = cpu_to_le16(link_policy);
627 hci_send_cmd(hdev, HCI_OP_WRITE_DEF_LINK_POLICY,
628 sizeof(link_policy), &link_policy);
629}
630
631static void hci_cc_read_local_commands(struct hci_dev *hdev, struct sk_buff *skb)
632{
633 struct hci_rp_read_local_commands *rp = (void *) skb->data;
634
635 BT_DBG("%s status 0x%x", hdev->name, rp->status);
636
637 if (rp->status)
638 goto done;
639
640 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
641
642 if (test_bit(HCI_INIT, &hdev->flags) && (hdev->commands[5] & 0x10))
643 hci_setup_link_policy(hdev);
644
645done:
646 hci_req_complete(hdev, HCI_OP_READ_LOCAL_COMMANDS, rp->status);
647}
648
649static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb)
650{
651 struct hci_rp_read_local_features *rp = (void *) skb->data;
652
653 BT_DBG("%s status 0x%x", hdev->name, rp->status);
654
655 if (rp->status)
656 return;
657
658 memcpy(hdev->features, rp->features, 8);
659
660 /* Adjust default settings according to features
661 * supported by device. */
662
663 if (hdev->features[0] & LMP_3SLOT)
664 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
665
666 if (hdev->features[0] & LMP_5SLOT)
667 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
668
669 if (hdev->features[1] & LMP_HV2) {
670 hdev->pkt_type |= (HCI_HV2);
671 hdev->esco_type |= (ESCO_HV2);
672 }
673
674 if (hdev->features[1] & LMP_HV3) {
675 hdev->pkt_type |= (HCI_HV3);
676 hdev->esco_type |= (ESCO_HV3);
677 }
678
679 if (hdev->features[3] & LMP_ESCO)
680 hdev->esco_type |= (ESCO_EV3);
681
682 if (hdev->features[4] & LMP_EV4)
683 hdev->esco_type |= (ESCO_EV4);
684
685 if (hdev->features[4] & LMP_EV5)
686 hdev->esco_type |= (ESCO_EV5);
687
688 if (hdev->features[5] & LMP_EDR_ESCO_2M)
689 hdev->esco_type |= (ESCO_2EV3);
690
691 if (hdev->features[5] & LMP_EDR_ESCO_3M)
692 hdev->esco_type |= (ESCO_3EV3);
693
694 if (hdev->features[5] & LMP_EDR_3S_ESCO)
695 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
696
697 BT_DBG("%s features 0x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", hdev->name,
698 hdev->features[0], hdev->features[1],
699 hdev->features[2], hdev->features[3],
700 hdev->features[4], hdev->features[5],
701 hdev->features[6], hdev->features[7]);
702}
703
704static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
705 struct sk_buff *skb)
706{
707 struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
708
709 BT_DBG("%s status 0x%x", hdev->name, rp->status);
710
711 if (rp->status)
712 return;
713
714 memcpy(hdev->extfeatures, rp->features, 8);
715
716 hci_req_complete(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, rp->status);
717}
718
719static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
720 struct sk_buff *skb)
721{
722 struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
723
724 BT_DBG("%s status 0x%x", hdev->name, rp->status);
725
726 if (rp->status)
727 return;
728
729 hdev->flow_ctl_mode = rp->mode;
730
731 hci_req_complete(hdev, HCI_OP_READ_FLOW_CONTROL_MODE, rp->status);
732}
733
734static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
735{
736 struct hci_rp_read_buffer_size *rp = (void *) skb->data;
737
738 BT_DBG("%s status 0x%x", hdev->name, rp->status);
739
740 if (rp->status)
741 return;
742
743 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
744 hdev->sco_mtu = rp->sco_mtu;
745 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
746 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
747
748 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
749 hdev->sco_mtu = 64;
750 hdev->sco_pkts = 8;
751 }
752
753 hdev->acl_cnt = hdev->acl_pkts;
754 hdev->sco_cnt = hdev->sco_pkts;
755
756 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name,
757 hdev->acl_mtu, hdev->acl_pkts,
758 hdev->sco_mtu, hdev->sco_pkts);
759}
760
761static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
762{
763 struct hci_rp_read_bd_addr *rp = (void *) skb->data;
764
765 BT_DBG("%s status 0x%x", hdev->name, rp->status);
766
767 if (!rp->status)
768 bacpy(&hdev->bdaddr, &rp->bdaddr);
769
770 hci_req_complete(hdev, HCI_OP_READ_BD_ADDR, rp->status);
771}
772
773static void hci_cc_read_data_block_size(struct hci_dev *hdev,
774 struct sk_buff *skb)
775{
776 struct hci_rp_read_data_block_size *rp = (void *) skb->data;
777
778 BT_DBG("%s status 0x%x", hdev->name, rp->status);
779
780 if (rp->status)
781 return;
782
783 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
784 hdev->block_len = __le16_to_cpu(rp->block_len);
785 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
786
787 hdev->block_cnt = hdev->num_blocks;
788
789 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
790 hdev->block_cnt, hdev->block_len);
791
792 hci_req_complete(hdev, HCI_OP_READ_DATA_BLOCK_SIZE, rp->status);
793}
794
795static void hci_cc_write_ca_timeout(struct hci_dev *hdev, struct sk_buff *skb)
796{
797 __u8 status = *((__u8 *) skb->data);
798
799 BT_DBG("%s status 0x%x", hdev->name, status);
800
801 hci_req_complete(hdev, HCI_OP_WRITE_CA_TIMEOUT, status);
802}
803
804static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
805 struct sk_buff *skb)
806{
807 struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
808
809 BT_DBG("%s status 0x%x", hdev->name, rp->status);
810
811 if (rp->status)
812 return;
813
814 hdev->amp_status = rp->amp_status;
815 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
816 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
817 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
818 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
819 hdev->amp_type = rp->amp_type;
820 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
821 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
822 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
823 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
824
825 hci_req_complete(hdev, HCI_OP_READ_LOCAL_AMP_INFO, rp->status);
826}
827
828static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
829 struct sk_buff *skb)
830{
831 __u8 status = *((__u8 *) skb->data);
832
833 BT_DBG("%s status 0x%x", hdev->name, status);
834
835 hci_req_complete(hdev, HCI_OP_DELETE_STORED_LINK_KEY, status);
836}
837
838static void hci_cc_set_event_mask(struct hci_dev *hdev, struct sk_buff *skb)
839{
840 __u8 status = *((__u8 *) skb->data);
841
842 BT_DBG("%s status 0x%x", hdev->name, status);
843
844 hci_req_complete(hdev, HCI_OP_SET_EVENT_MASK, status);
845}
846
847static void hci_cc_write_inquiry_mode(struct hci_dev *hdev,
848 struct sk_buff *skb)
849{
850 __u8 status = *((__u8 *) skb->data);
851
852 BT_DBG("%s status 0x%x", hdev->name, status);
853
854 hci_req_complete(hdev, HCI_OP_WRITE_INQUIRY_MODE, status);
855}
856
857static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
858 struct sk_buff *skb)
859{
860 __u8 status = *((__u8 *) skb->data);
861
862 BT_DBG("%s status 0x%x", hdev->name, status);
863
864 hci_req_complete(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, status);
865}
866
867static void hci_cc_set_event_flt(struct hci_dev *hdev, struct sk_buff *skb)
868{
869 __u8 status = *((__u8 *) skb->data);
870
871 BT_DBG("%s status 0x%x", hdev->name, status);
872
873 hci_req_complete(hdev, HCI_OP_SET_EVENT_FLT, status);
874}
875
876static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
877{
878 struct hci_rp_pin_code_reply *rp = (void *) skb->data;
879 struct hci_cp_pin_code_reply *cp;
880 struct hci_conn *conn;
881
882 BT_DBG("%s status 0x%x", hdev->name, rp->status);
883
884 hci_dev_lock(hdev);
885
886 if (test_bit(HCI_MGMT, &hdev->flags))
887 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
888
889 if (rp->status != 0)
890 goto unlock;
891
892 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
893 if (!cp)
894 goto unlock;
895
896 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
897 if (conn)
898 conn->pin_length = cp->pin_len;
899
900unlock:
901 hci_dev_unlock(hdev);
902}
903
904static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
905{
906 struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
907
908 BT_DBG("%s status 0x%x", hdev->name, rp->status);
909
910 hci_dev_lock(hdev);
911
912 if (test_bit(HCI_MGMT, &hdev->flags))
913 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
914 rp->status);
915
916 hci_dev_unlock(hdev);
917}
918
919static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
920 struct sk_buff *skb)
921{
922 struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
923
924 BT_DBG("%s status 0x%x", hdev->name, rp->status);
925
926 if (rp->status)
927 return;
928
929 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
930 hdev->le_pkts = rp->le_max_pkt;
931
932 hdev->le_cnt = hdev->le_pkts;
933
934 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
935
936 hci_req_complete(hdev, HCI_OP_LE_READ_BUFFER_SIZE, rp->status);
937}
938
939static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
940{
941 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
942
943 BT_DBG("%s status 0x%x", hdev->name, rp->status);
944
945 hci_dev_lock(hdev);
946
947 if (test_bit(HCI_MGMT, &hdev->flags))
948 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr,
949 rp->status);
950
951 hci_dev_unlock(hdev);
952}
953
954static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
955 struct sk_buff *skb)
956{
957 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
958
959 BT_DBG("%s status 0x%x", hdev->name, rp->status);
960
961 hci_dev_lock(hdev);
962
963 if (test_bit(HCI_MGMT, &hdev->flags))
964 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
965 rp->status);
966
967 hci_dev_unlock(hdev);
968}
969
970static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
971{
972 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
973
974 BT_DBG("%s status 0x%x", hdev->name, rp->status);
975
976 hci_dev_lock(hdev);
977
978 if (test_bit(HCI_MGMT, &hdev->flags))
979 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr,
980 rp->status);
981
982 hci_dev_unlock(hdev);
983}
984
985static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
986 struct sk_buff *skb)
987{
988 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
989
990 BT_DBG("%s status 0x%x", hdev->name, rp->status);
991
992 hci_dev_lock(hdev);
993
994 if (test_bit(HCI_MGMT, &hdev->flags))
995 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
996 rp->status);
997
998 hci_dev_unlock(hdev);
999}
1000
1001static void hci_cc_read_local_oob_data_reply(struct hci_dev *hdev,
1002 struct sk_buff *skb)
1003{
1004 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
1005
1006 BT_DBG("%s status 0x%x", hdev->name, rp->status);
1007
1008 hci_dev_lock(hdev);
1009 mgmt_read_local_oob_data_reply_complete(hdev, rp->hash,
1010 rp->randomizer, rp->status);
1011 hci_dev_unlock(hdev);
1012}
1013
1014static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
1015{
1016 __u8 status = *((__u8 *) skb->data);
1017
1018 BT_DBG("%s status 0x%x", hdev->name, status);
1019}
1020
1021static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
1022 struct sk_buff *skb)
1023{
1024 struct hci_cp_le_set_scan_enable *cp;
1025 __u8 status = *((__u8 *) skb->data);
1026
1027 BT_DBG("%s status 0x%x", hdev->name, status);
1028
1029 if (status)
1030 return;
1031
1032 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1033 if (!cp)
1034 return;
1035
1036 if (cp->enable == 0x01) {
1037 set_bit(HCI_LE_SCAN, &hdev->dev_flags);
1038
1039 cancel_delayed_work_sync(&hdev->adv_work);
1040
1041 hci_dev_lock(hdev);
1042 hci_adv_entries_clear(hdev);
1043 hci_dev_unlock(hdev);
1044 } else if (cp->enable == 0x00) {
1045 clear_bit(HCI_LE_SCAN, &hdev->dev_flags);
1046
1047 cancel_delayed_work_sync(&hdev->adv_work);
1048 queue_delayed_work(hdev->workqueue, &hdev->adv_work,
1049 jiffies + ADV_CLEAR_TIMEOUT);
1050 }
1051}
1052
1053static void hci_cc_le_ltk_reply(struct hci_dev *hdev, struct sk_buff *skb)
1054{
1055 struct hci_rp_le_ltk_reply *rp = (void *) skb->data;
1056
1057 BT_DBG("%s status 0x%x", hdev->name, rp->status);
1058
1059 if (rp->status)
1060 return;
1061
1062 hci_req_complete(hdev, HCI_OP_LE_LTK_REPLY, rp->status);
1063}
1064
1065static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
1066{
1067 struct hci_rp_le_ltk_neg_reply *rp = (void *) skb->data;
1068
1069 BT_DBG("%s status 0x%x", hdev->name, rp->status);
1070
1071 if (rp->status)
1072 return;
1073
1074 hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
1075}
1076
1077static inline void hci_cc_write_le_host_supported(struct hci_dev *hdev,
1078 struct sk_buff *skb)
1079{
1080 struct hci_cp_read_local_ext_features cp;
1081 __u8 status = *((__u8 *) skb->data);
1082
1083 BT_DBG("%s status 0x%x", hdev->name, status);
1084
1085 if (status)
1086 return;
1087
1088 cp.page = 0x01;
1089 hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, sizeof(cp), &cp);
1090}
1091
1092static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
1093{
1094 BT_DBG("%s status 0x%x", hdev->name, status);
1095
1096 if (status) {
1097 hci_req_complete(hdev, HCI_OP_INQUIRY, status);
1098 hci_conn_check_pending(hdev);
1099 hci_dev_lock(hdev);
1100 if (test_bit(HCI_MGMT, &hdev->flags))
1101 mgmt_start_discovery_failed(hdev, status);
1102 hci_dev_unlock(hdev);
1103 return;
1104 }
1105
1106 set_bit(HCI_INQUIRY, &hdev->flags);
1107
1108 hci_dev_lock(hdev);
1109 mgmt_discovering(hdev, 1);
1110 hci_dev_unlock(hdev);
1111}
1112
1113static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
1114{
1115 struct hci_cp_create_conn *cp;
1116 struct hci_conn *conn;
1117
1118 BT_DBG("%s status 0x%x", hdev->name, status);
1119
1120 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
1121 if (!cp)
1122 return;
1123
1124 hci_dev_lock(hdev);
1125
1126 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1127
1128 BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->bdaddr), conn);
1129
1130 if (status) {
1131 if (conn && conn->state == BT_CONNECT) {
1132 if (status != 0x0c || conn->attempt > 2) {
1133 conn->state = BT_CLOSED;
1134 hci_proto_connect_cfm(conn, status);
1135 hci_conn_del(conn);
1136 } else
1137 conn->state = BT_CONNECT2;
1138 }
1139 } else {
1140 if (!conn) {
1141 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
1142 if (conn) {
1143 conn->out = 1;
1144 conn->link_mode |= HCI_LM_MASTER;
1145 } else
1146 BT_ERR("No memory for new connection");
1147 }
1148 }
1149
1150 hci_dev_unlock(hdev);
1151}
1152
1153static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1154{
1155 struct hci_cp_add_sco *cp;
1156 struct hci_conn *acl, *sco;
1157 __u16 handle;
1158
1159 BT_DBG("%s status 0x%x", hdev->name, status);
1160
1161 if (!status)
1162 return;
1163
1164 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
1165 if (!cp)
1166 return;
1167
1168 handle = __le16_to_cpu(cp->handle);
1169
1170 BT_DBG("%s handle %d", hdev->name, handle);
1171
1172 hci_dev_lock(hdev);
1173
1174 acl = hci_conn_hash_lookup_handle(hdev, handle);
1175 if (acl) {
1176 sco = acl->link;
1177 if (sco) {
1178 sco->state = BT_CLOSED;
1179
1180 hci_proto_connect_cfm(sco, status);
1181 hci_conn_del(sco);
1182 }
1183 }
1184
1185 hci_dev_unlock(hdev);
1186}
1187
1188static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
1189{
1190 struct hci_cp_auth_requested *cp;
1191 struct hci_conn *conn;
1192
1193 BT_DBG("%s status 0x%x", hdev->name, status);
1194
1195 if (!status)
1196 return;
1197
1198 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
1199 if (!cp)
1200 return;
1201
1202 hci_dev_lock(hdev);
1203
1204 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1205 if (conn) {
1206 if (conn->state == BT_CONFIG) {
1207 hci_proto_connect_cfm(conn, status);
1208 hci_conn_put(conn);
1209 }
1210 }
1211
1212 hci_dev_unlock(hdev);
1213}
1214
1215static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
1216{
1217 struct hci_cp_set_conn_encrypt *cp;
1218 struct hci_conn *conn;
1219
1220 BT_DBG("%s status 0x%x", hdev->name, status);
1221
1222 if (!status)
1223 return;
1224
1225 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
1226 if (!cp)
1227 return;
1228
1229 hci_dev_lock(hdev);
1230
1231 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1232 if (conn) {
1233 if (conn->state == BT_CONFIG) {
1234 hci_proto_connect_cfm(conn, status);
1235 hci_conn_put(conn);
1236 }
1237 }
1238
1239 hci_dev_unlock(hdev);
1240}
1241
1242static int hci_outgoing_auth_needed(struct hci_dev *hdev,
1243 struct hci_conn *conn)
1244{
1245 if (conn->state != BT_CONFIG || !conn->out)
1246 return 0;
1247
1248 if (conn->pending_sec_level == BT_SECURITY_SDP)
1249 return 0;
1250
1251 /* Only request authentication for SSP connections or non-SSP
1252 * devices with sec_level HIGH or if MITM protection is requested */
1253 if (!(hdev->ssp_mode > 0 && conn->ssp_mode > 0) &&
1254 conn->pending_sec_level != BT_SECURITY_HIGH &&
1255 !(conn->auth_type & 0x01))
1256 return 0;
1257
1258 return 1;
1259}
1260
1261static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
1262{
1263 struct hci_cp_remote_name_req *cp;
1264 struct hci_conn *conn;
1265
1266 BT_DBG("%s status 0x%x", hdev->name, status);
1267
1268 /* If successful wait for the name req complete event before
1269 * checking for the need to do authentication */
1270 if (!status)
1271 return;
1272
1273 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
1274 if (!cp)
1275 return;
1276
1277 hci_dev_lock(hdev);
1278
1279 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1280 if (!conn)
1281 goto unlock;
1282
1283 if (!hci_outgoing_auth_needed(hdev, conn))
1284 goto unlock;
1285
1286 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
1287 struct hci_cp_auth_requested cp;
1288 cp.handle = __cpu_to_le16(conn->handle);
1289 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
1290 }
1291
1292unlock:
1293 hci_dev_unlock(hdev);
1294}
1295
1296static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
1297{
1298 struct hci_cp_read_remote_features *cp;
1299 struct hci_conn *conn;
1300
1301 BT_DBG("%s status 0x%x", hdev->name, status);
1302
1303 if (!status)
1304 return;
1305
1306 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
1307 if (!cp)
1308 return;
1309
1310 hci_dev_lock(hdev);
1311
1312 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1313 if (conn) {
1314 if (conn->state == BT_CONFIG) {
1315 hci_proto_connect_cfm(conn, status);
1316 hci_conn_put(conn);
1317 }
1318 }
1319
1320 hci_dev_unlock(hdev);
1321}
1322
1323static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
1324{
1325 struct hci_cp_read_remote_ext_features *cp;
1326 struct hci_conn *conn;
1327
1328 BT_DBG("%s status 0x%x", hdev->name, status);
1329
1330 if (!status)
1331 return;
1332
1333 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
1334 if (!cp)
1335 return;
1336
1337 hci_dev_lock(hdev);
1338
1339 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1340 if (conn) {
1341 if (conn->state == BT_CONFIG) {
1342 hci_proto_connect_cfm(conn, status);
1343 hci_conn_put(conn);
1344 }
1345 }
1346
1347 hci_dev_unlock(hdev);
1348}
1349
1350static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
1351{
1352 struct hci_cp_setup_sync_conn *cp;
1353 struct hci_conn *acl, *sco;
1354 __u16 handle;
1355
1356 BT_DBG("%s status 0x%x", hdev->name, status);
1357
1358 if (!status)
1359 return;
1360
1361 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
1362 if (!cp)
1363 return;
1364
1365 handle = __le16_to_cpu(cp->handle);
1366
1367 BT_DBG("%s handle %d", hdev->name, handle);
1368
1369 hci_dev_lock(hdev);
1370
1371 acl = hci_conn_hash_lookup_handle(hdev, handle);
1372 if (acl) {
1373 sco = acl->link;
1374 if (sco) {
1375 sco->state = BT_CLOSED;
1376
1377 hci_proto_connect_cfm(sco, status);
1378 hci_conn_del(sco);
1379 }
1380 }
1381
1382 hci_dev_unlock(hdev);
1383}
1384
1385static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
1386{
1387 struct hci_cp_sniff_mode *cp;
1388 struct hci_conn *conn;
1389
1390 BT_DBG("%s status 0x%x", hdev->name, status);
1391
1392 if (!status)
1393 return;
1394
1395 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
1396 if (!cp)
1397 return;
1398
1399 hci_dev_lock(hdev);
1400
1401 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1402 if (conn) {
1403 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
1404
1405 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->pend))
1406 hci_sco_setup(conn, status);
1407 }
1408
1409 hci_dev_unlock(hdev);
1410}
1411
1412static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
1413{
1414 struct hci_cp_exit_sniff_mode *cp;
1415 struct hci_conn *conn;
1416
1417 BT_DBG("%s status 0x%x", hdev->name, status);
1418
1419 if (!status)
1420 return;
1421
1422 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
1423 if (!cp)
1424 return;
1425
1426 hci_dev_lock(hdev);
1427
1428 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1429 if (conn) {
1430 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
1431
1432 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->pend))
1433 hci_sco_setup(conn, status);
1434 }
1435
1436 hci_dev_unlock(hdev);
1437}
1438
1439static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
1440{
1441 struct hci_cp_le_create_conn *cp;
1442 struct hci_conn *conn;
1443
1444 BT_DBG("%s status 0x%x", hdev->name, status);
1445
1446 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
1447 if (!cp)
1448 return;
1449
1450 hci_dev_lock(hdev);
1451
1452 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr);
1453
1454 BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->peer_addr),
1455 conn);
1456
1457 if (status) {
1458 if (conn && conn->state == BT_CONNECT) {
1459 conn->state = BT_CLOSED;
1460 hci_proto_connect_cfm(conn, status);
1461 hci_conn_del(conn);
1462 }
1463 } else {
1464 if (!conn) {
1465 conn = hci_conn_add(hdev, LE_LINK, &cp->peer_addr);
1466 if (conn) {
1467 conn->dst_type = cp->peer_addr_type;
1468 conn->out = 1;
1469 } else {
1470 BT_ERR("No memory for new connection");
1471 }
1472 }
1473 }
1474
1475 hci_dev_unlock(hdev);
1476}
1477
1478static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
1479{
1480 BT_DBG("%s status 0x%x", hdev->name, status);
1481}
1482
1483static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1484{
1485 __u8 status = *((__u8 *) skb->data);
1486
1487 BT_DBG("%s status %d", hdev->name, status);
1488
1489 hci_req_complete(hdev, HCI_OP_INQUIRY, status);
1490
1491 hci_conn_check_pending(hdev);
1492
1493 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
1494 return;
1495
1496 hci_dev_lock(hdev);
1497 mgmt_discovering(hdev, 0);
1498 hci_dev_unlock(hdev);
1499}
1500
1501static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
1502{
1503 struct inquiry_data data;
1504 struct inquiry_info *info = (void *) (skb->data + 1);
1505 int num_rsp = *((__u8 *) skb->data);
1506
1507 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1508
1509 if (!num_rsp)
1510 return;
1511
1512 hci_dev_lock(hdev);
1513
1514 for (; num_rsp; num_rsp--, info++) {
1515 bacpy(&data.bdaddr, &info->bdaddr);
1516 data.pscan_rep_mode = info->pscan_rep_mode;
1517 data.pscan_period_mode = info->pscan_period_mode;
1518 data.pscan_mode = info->pscan_mode;
1519 memcpy(data.dev_class, info->dev_class, 3);
1520 data.clock_offset = info->clock_offset;
1521 data.rssi = 0x00;
1522 data.ssp_mode = 0x00;
1523 hci_inquiry_cache_update(hdev, &data);
1524 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
1525 info->dev_class, 0, NULL);
1526 }
1527
1528 hci_dev_unlock(hdev);
1529}
1530
1531static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1532{
1533 struct hci_ev_conn_complete *ev = (void *) skb->data;
1534 struct hci_conn *conn;
1535
1536 BT_DBG("%s", hdev->name);
1537
1538 hci_dev_lock(hdev);
1539
1540 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
1541 if (!conn) {
1542 if (ev->link_type != SCO_LINK)
1543 goto unlock;
1544
1545 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
1546 if (!conn)
1547 goto unlock;
1548
1549 conn->type = SCO_LINK;
1550 }
1551
1552 if (!ev->status) {
1553 conn->handle = __le16_to_cpu(ev->handle);
1554
1555 if (conn->type == ACL_LINK) {
1556 conn->state = BT_CONFIG;
1557 hci_conn_hold(conn);
1558 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
1559 mgmt_connected(hdev, &ev->bdaddr, conn->type,
1560 conn->dst_type);
1561 } else
1562 conn->state = BT_CONNECTED;
1563
1564 hci_conn_hold_device(conn);
1565 hci_conn_add_sysfs(conn);
1566
1567 if (test_bit(HCI_AUTH, &hdev->flags))
1568 conn->link_mode |= HCI_LM_AUTH;
1569
1570 if (test_bit(HCI_ENCRYPT, &hdev->flags))
1571 conn->link_mode |= HCI_LM_ENCRYPT;
1572
1573 /* Get remote features */
1574 if (conn->type == ACL_LINK) {
1575 struct hci_cp_read_remote_features cp;
1576 cp.handle = ev->handle;
1577 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
1578 sizeof(cp), &cp);
1579 }
1580
1581 /* Set packet type for incoming connection */
1582 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
1583 struct hci_cp_change_conn_ptype cp;
1584 cp.handle = ev->handle;
1585 cp.pkt_type = cpu_to_le16(conn->pkt_type);
1586 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE,
1587 sizeof(cp), &cp);
1588 }
1589 } else {
1590 conn->state = BT_CLOSED;
1591 if (conn->type == ACL_LINK)
1592 mgmt_connect_failed(hdev, &ev->bdaddr, conn->type,
1593 conn->dst_type, ev->status);
1594 }
1595
1596 if (conn->type == ACL_LINK)
1597 hci_sco_setup(conn, ev->status);
1598
1599 if (ev->status) {
1600 hci_proto_connect_cfm(conn, ev->status);
1601 hci_conn_del(conn);
1602 } else if (ev->link_type != ACL_LINK)
1603 hci_proto_connect_cfm(conn, ev->status);
1604
1605unlock:
1606 hci_dev_unlock(hdev);
1607
1608 hci_conn_check_pending(hdev);
1609}
1610
1611static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1612{
1613 struct hci_ev_conn_request *ev = (void *) skb->data;
1614 int mask = hdev->link_mode;
1615
1616 BT_DBG("%s bdaddr %s type 0x%x", hdev->name,
1617 batostr(&ev->bdaddr), ev->link_type);
1618
1619 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
1620
1621 if ((mask & HCI_LM_ACCEPT) &&
1622 !hci_blacklist_lookup(hdev, &ev->bdaddr)) {
1623 /* Connection accepted */
1624 struct inquiry_entry *ie;
1625 struct hci_conn *conn;
1626
1627 hci_dev_lock(hdev);
1628
1629 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
1630 if (ie)
1631 memcpy(ie->data.dev_class, ev->dev_class, 3);
1632
1633 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
1634 if (!conn) {
1635 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr);
1636 if (!conn) {
1637 BT_ERR("No memory for new connection");
1638 hci_dev_unlock(hdev);
1639 return;
1640 }
1641 }
1642
1643 memcpy(conn->dev_class, ev->dev_class, 3);
1644 conn->state = BT_CONNECT;
1645
1646 hci_dev_unlock(hdev);
1647
1648 if (ev->link_type == ACL_LINK || !lmp_esco_capable(hdev)) {
1649 struct hci_cp_accept_conn_req cp;
1650
1651 bacpy(&cp.bdaddr, &ev->bdaddr);
1652
1653 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
1654 cp.role = 0x00; /* Become master */
1655 else
1656 cp.role = 0x01; /* Remain slave */
1657
1658 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ,
1659 sizeof(cp), &cp);
1660 } else {
1661 struct hci_cp_accept_sync_conn_req cp;
1662
1663 bacpy(&cp.bdaddr, &ev->bdaddr);
1664 cp.pkt_type = cpu_to_le16(conn->pkt_type);
1665
1666 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
1667 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
1668 cp.max_latency = cpu_to_le16(0xffff);
1669 cp.content_format = cpu_to_le16(hdev->voice_setting);
1670 cp.retrans_effort = 0xff;
1671
1672 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
1673 sizeof(cp), &cp);
1674 }
1675 } else {
1676 /* Connection rejected */
1677 struct hci_cp_reject_conn_req cp;
1678
1679 bacpy(&cp.bdaddr, &ev->bdaddr);
1680 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
1681 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
1682 }
1683}
1684
1685static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1686{
1687 struct hci_ev_disconn_complete *ev = (void *) skb->data;
1688 struct hci_conn *conn;
1689
1690 BT_DBG("%s status %d", hdev->name, ev->status);
1691
1692 hci_dev_lock(hdev);
1693
1694 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1695 if (!conn)
1696 goto unlock;
1697
1698 if (ev->status == 0)
1699 conn->state = BT_CLOSED;
1700
1701 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
1702 if (ev->status != 0)
1703 mgmt_disconnect_failed(hdev, &conn->dst, ev->status);
1704 else
1705 mgmt_disconnected(hdev, &conn->dst, conn->type,
1706 conn->dst_type);
1707 }
1708
1709 if (ev->status == 0) {
1710 hci_proto_disconn_cfm(conn, ev->reason);
1711 hci_conn_del(conn);
1712 }
1713
1714unlock:
1715 hci_dev_unlock(hdev);
1716}
1717
1718static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1719{
1720 struct hci_ev_auth_complete *ev = (void *) skb->data;
1721 struct hci_conn *conn;
1722
1723 BT_DBG("%s status %d", hdev->name, ev->status);
1724
1725 hci_dev_lock(hdev);
1726
1727 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1728 if (!conn)
1729 goto unlock;
1730
1731 if (!ev->status) {
1732 if (!(conn->ssp_mode > 0 && hdev->ssp_mode > 0) &&
1733 test_bit(HCI_CONN_REAUTH_PEND, &conn->pend)) {
1734 BT_INFO("re-auth of legacy device is not possible.");
1735 } else {
1736 conn->link_mode |= HCI_LM_AUTH;
1737 conn->sec_level = conn->pending_sec_level;
1738 }
1739 } else {
1740 mgmt_auth_failed(hdev, &conn->dst, ev->status);
1741 }
1742
1743 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
1744 clear_bit(HCI_CONN_REAUTH_PEND, &conn->pend);
1745
1746 if (conn->state == BT_CONFIG) {
1747 if (!ev->status && hdev->ssp_mode > 0 && conn->ssp_mode > 0) {
1748 struct hci_cp_set_conn_encrypt cp;
1749 cp.handle = ev->handle;
1750 cp.encrypt = 0x01;
1751 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
1752 &cp);
1753 } else {
1754 conn->state = BT_CONNECTED;
1755 hci_proto_connect_cfm(conn, ev->status);
1756 hci_conn_put(conn);
1757 }
1758 } else {
1759 hci_auth_cfm(conn, ev->status);
1760
1761 hci_conn_hold(conn);
1762 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
1763 hci_conn_put(conn);
1764 }
1765
1766 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
1767 if (!ev->status) {
1768 struct hci_cp_set_conn_encrypt cp;
1769 cp.handle = ev->handle;
1770 cp.encrypt = 0x01;
1771 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
1772 &cp);
1773 } else {
1774 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
1775 hci_encrypt_cfm(conn, ev->status, 0x00);
1776 }
1777 }
1778
1779unlock:
1780 hci_dev_unlock(hdev);
1781}
1782
1783static inline void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
1784{
1785 struct hci_ev_remote_name *ev = (void *) skb->data;
1786 struct hci_conn *conn;
1787
1788 BT_DBG("%s", hdev->name);
1789
1790 hci_conn_check_pending(hdev);
1791
1792 hci_dev_lock(hdev);
1793
1794 if (ev->status == 0 && test_bit(HCI_MGMT, &hdev->flags))
1795 mgmt_remote_name(hdev, &ev->bdaddr, ev->name);
1796
1797 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
1798 if (!conn)
1799 goto unlock;
1800
1801 if (!hci_outgoing_auth_needed(hdev, conn))
1802 goto unlock;
1803
1804 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
1805 struct hci_cp_auth_requested cp;
1806 cp.handle = __cpu_to_le16(conn->handle);
1807 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
1808 }
1809
1810unlock:
1811 hci_dev_unlock(hdev);
1812}
1813
1814static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
1815{
1816 struct hci_ev_encrypt_change *ev = (void *) skb->data;
1817 struct hci_conn *conn;
1818
1819 BT_DBG("%s status %d", hdev->name, ev->status);
1820
1821 hci_dev_lock(hdev);
1822
1823 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1824 if (conn) {
1825 if (!ev->status) {
1826 if (ev->encrypt) {
1827 /* Encryption implies authentication */
1828 conn->link_mode |= HCI_LM_AUTH;
1829 conn->link_mode |= HCI_LM_ENCRYPT;
1830 conn->sec_level = conn->pending_sec_level;
1831 } else
1832 conn->link_mode &= ~HCI_LM_ENCRYPT;
1833 }
1834
1835 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
1836
1837 if (conn->state == BT_CONFIG) {
1838 if (!ev->status)
1839 conn->state = BT_CONNECTED;
1840
1841 hci_proto_connect_cfm(conn, ev->status);
1842 hci_conn_put(conn);
1843 } else
1844 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
1845 }
1846
1847 hci_dev_unlock(hdev);
1848}
1849
1850static inline void hci_change_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1851{
1852 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
1853 struct hci_conn *conn;
1854
1855 BT_DBG("%s status %d", hdev->name, ev->status);
1856
1857 hci_dev_lock(hdev);
1858
1859 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1860 if (conn) {
1861 if (!ev->status)
1862 conn->link_mode |= HCI_LM_SECURE;
1863
1864 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
1865
1866 hci_key_change_cfm(conn, ev->status);
1867 }
1868
1869 hci_dev_unlock(hdev);
1870}
1871
1872static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
1873{
1874 struct hci_ev_remote_features *ev = (void *) skb->data;
1875 struct hci_conn *conn;
1876
1877 BT_DBG("%s status %d", hdev->name, ev->status);
1878
1879 hci_dev_lock(hdev);
1880
1881 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1882 if (!conn)
1883 goto unlock;
1884
1885 if (!ev->status)
1886 memcpy(conn->features, ev->features, 8);
1887
1888 if (conn->state != BT_CONFIG)
1889 goto unlock;
1890
1891 if (!ev->status && lmp_ssp_capable(hdev) && lmp_ssp_capable(conn)) {
1892 struct hci_cp_read_remote_ext_features cp;
1893 cp.handle = ev->handle;
1894 cp.page = 0x01;
1895 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
1896 sizeof(cp), &cp);
1897 goto unlock;
1898 }
1899
1900 if (!ev->status) {
1901 struct hci_cp_remote_name_req cp;
1902 memset(&cp, 0, sizeof(cp));
1903 bacpy(&cp.bdaddr, &conn->dst);
1904 cp.pscan_rep_mode = 0x02;
1905 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
1906 }
1907
1908 if (!hci_outgoing_auth_needed(hdev, conn)) {
1909 conn->state = BT_CONNECTED;
1910 hci_proto_connect_cfm(conn, ev->status);
1911 hci_conn_put(conn);
1912 }
1913
1914unlock:
1915 hci_dev_unlock(hdev);
1916}
1917
1918static inline void hci_remote_version_evt(struct hci_dev *hdev, struct sk_buff *skb)
1919{
1920 BT_DBG("%s", hdev->name);
1921}
1922
1923static inline void hci_qos_setup_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1924{
1925 BT_DBG("%s", hdev->name);
1926}
1927
1928static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1929{
1930 struct hci_ev_cmd_complete *ev = (void *) skb->data;
1931 __u16 opcode;
1932
1933 skb_pull(skb, sizeof(*ev));
1934
1935 opcode = __le16_to_cpu(ev->opcode);
1936
1937 switch (opcode) {
1938 case HCI_OP_INQUIRY_CANCEL:
1939 hci_cc_inquiry_cancel(hdev, skb);
1940 break;
1941
1942 case HCI_OP_EXIT_PERIODIC_INQ:
1943 hci_cc_exit_periodic_inq(hdev, skb);
1944 break;
1945
1946 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
1947 hci_cc_remote_name_req_cancel(hdev, skb);
1948 break;
1949
1950 case HCI_OP_ROLE_DISCOVERY:
1951 hci_cc_role_discovery(hdev, skb);
1952 break;
1953
1954 case HCI_OP_READ_LINK_POLICY:
1955 hci_cc_read_link_policy(hdev, skb);
1956 break;
1957
1958 case HCI_OP_WRITE_LINK_POLICY:
1959 hci_cc_write_link_policy(hdev, skb);
1960 break;
1961
1962 case HCI_OP_READ_DEF_LINK_POLICY:
1963 hci_cc_read_def_link_policy(hdev, skb);
1964 break;
1965
1966 case HCI_OP_WRITE_DEF_LINK_POLICY:
1967 hci_cc_write_def_link_policy(hdev, skb);
1968 break;
1969
1970 case HCI_OP_RESET:
1971 hci_cc_reset(hdev, skb);
1972 break;
1973
1974 case HCI_OP_WRITE_LOCAL_NAME:
1975 hci_cc_write_local_name(hdev, skb);
1976 break;
1977
1978 case HCI_OP_READ_LOCAL_NAME:
1979 hci_cc_read_local_name(hdev, skb);
1980 break;
1981
1982 case HCI_OP_WRITE_AUTH_ENABLE:
1983 hci_cc_write_auth_enable(hdev, skb);
1984 break;
1985
1986 case HCI_OP_WRITE_ENCRYPT_MODE:
1987 hci_cc_write_encrypt_mode(hdev, skb);
1988 break;
1989
1990 case HCI_OP_WRITE_SCAN_ENABLE:
1991 hci_cc_write_scan_enable(hdev, skb);
1992 break;
1993
1994 case HCI_OP_READ_CLASS_OF_DEV:
1995 hci_cc_read_class_of_dev(hdev, skb);
1996 break;
1997
1998 case HCI_OP_WRITE_CLASS_OF_DEV:
1999 hci_cc_write_class_of_dev(hdev, skb);
2000 break;
2001
2002 case HCI_OP_READ_VOICE_SETTING:
2003 hci_cc_read_voice_setting(hdev, skb);
2004 break;
2005
2006 case HCI_OP_WRITE_VOICE_SETTING:
2007 hci_cc_write_voice_setting(hdev, skb);
2008 break;
2009
2010 case HCI_OP_HOST_BUFFER_SIZE:
2011 hci_cc_host_buffer_size(hdev, skb);
2012 break;
2013
2014 case HCI_OP_READ_SSP_MODE:
2015 hci_cc_read_ssp_mode(hdev, skb);
2016 break;
2017
2018 case HCI_OP_WRITE_SSP_MODE:
2019 hci_cc_write_ssp_mode(hdev, skb);
2020 break;
2021
2022 case HCI_OP_READ_LOCAL_VERSION:
2023 hci_cc_read_local_version(hdev, skb);
2024 break;
2025
2026 case HCI_OP_READ_LOCAL_COMMANDS:
2027 hci_cc_read_local_commands(hdev, skb);
2028 break;
2029
2030 case HCI_OP_READ_LOCAL_FEATURES:
2031 hci_cc_read_local_features(hdev, skb);
2032 break;
2033
2034 case HCI_OP_READ_LOCAL_EXT_FEATURES:
2035 hci_cc_read_local_ext_features(hdev, skb);
2036 break;
2037
2038 case HCI_OP_READ_BUFFER_SIZE:
2039 hci_cc_read_buffer_size(hdev, skb);
2040 break;
2041
2042 case HCI_OP_READ_BD_ADDR:
2043 hci_cc_read_bd_addr(hdev, skb);
2044 break;
2045
2046 case HCI_OP_READ_DATA_BLOCK_SIZE:
2047 hci_cc_read_data_block_size(hdev, skb);
2048 break;
2049
2050 case HCI_OP_WRITE_CA_TIMEOUT:
2051 hci_cc_write_ca_timeout(hdev, skb);
2052 break;
2053
2054 case HCI_OP_READ_FLOW_CONTROL_MODE:
2055 hci_cc_read_flow_control_mode(hdev, skb);
2056 break;
2057
2058 case HCI_OP_READ_LOCAL_AMP_INFO:
2059 hci_cc_read_local_amp_info(hdev, skb);
2060 break;
2061
2062 case HCI_OP_DELETE_STORED_LINK_KEY:
2063 hci_cc_delete_stored_link_key(hdev, skb);
2064 break;
2065
2066 case HCI_OP_SET_EVENT_MASK:
2067 hci_cc_set_event_mask(hdev, skb);
2068 break;
2069
2070 case HCI_OP_WRITE_INQUIRY_MODE:
2071 hci_cc_write_inquiry_mode(hdev, skb);
2072 break;
2073
2074 case HCI_OP_READ_INQ_RSP_TX_POWER:
2075 hci_cc_read_inq_rsp_tx_power(hdev, skb);
2076 break;
2077
2078 case HCI_OP_SET_EVENT_FLT:
2079 hci_cc_set_event_flt(hdev, skb);
2080 break;
2081
2082 case HCI_OP_PIN_CODE_REPLY:
2083 hci_cc_pin_code_reply(hdev, skb);
2084 break;
2085
2086 case HCI_OP_PIN_CODE_NEG_REPLY:
2087 hci_cc_pin_code_neg_reply(hdev, skb);
2088 break;
2089
2090 case HCI_OP_READ_LOCAL_OOB_DATA:
2091 hci_cc_read_local_oob_data_reply(hdev, skb);
2092 break;
2093
2094 case HCI_OP_LE_READ_BUFFER_SIZE:
2095 hci_cc_le_read_buffer_size(hdev, skb);
2096 break;
2097
2098 case HCI_OP_USER_CONFIRM_REPLY:
2099 hci_cc_user_confirm_reply(hdev, skb);
2100 break;
2101
2102 case HCI_OP_USER_CONFIRM_NEG_REPLY:
2103 hci_cc_user_confirm_neg_reply(hdev, skb);
2104 break;
2105
2106 case HCI_OP_USER_PASSKEY_REPLY:
2107 hci_cc_user_passkey_reply(hdev, skb);
2108 break;
2109
2110 case HCI_OP_USER_PASSKEY_NEG_REPLY:
2111 hci_cc_user_passkey_neg_reply(hdev, skb);
2112
2113 case HCI_OP_LE_SET_SCAN_PARAM:
2114 hci_cc_le_set_scan_param(hdev, skb);
2115 break;
2116
2117 case HCI_OP_LE_SET_SCAN_ENABLE:
2118 hci_cc_le_set_scan_enable(hdev, skb);
2119 break;
2120
2121 case HCI_OP_LE_LTK_REPLY:
2122 hci_cc_le_ltk_reply(hdev, skb);
2123 break;
2124
2125 case HCI_OP_LE_LTK_NEG_REPLY:
2126 hci_cc_le_ltk_neg_reply(hdev, skb);
2127 break;
2128
2129 case HCI_OP_WRITE_LE_HOST_SUPPORTED:
2130 hci_cc_write_le_host_supported(hdev, skb);
2131 break;
2132
2133 default:
2134 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
2135 break;
2136 }
2137
2138 if (ev->opcode != HCI_OP_NOP)
2139 del_timer(&hdev->cmd_timer);
2140
2141 if (ev->ncmd) {
2142 atomic_set(&hdev->cmd_cnt, 1);
2143 if (!skb_queue_empty(&hdev->cmd_q))
2144 queue_work(hdev->workqueue, &hdev->cmd_work);
2145 }
2146}
2147
2148static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
2149{
2150 struct hci_ev_cmd_status *ev = (void *) skb->data;
2151 __u16 opcode;
2152
2153 skb_pull(skb, sizeof(*ev));
2154
2155 opcode = __le16_to_cpu(ev->opcode);
2156
2157 switch (opcode) {
2158 case HCI_OP_INQUIRY:
2159 hci_cs_inquiry(hdev, ev->status);
2160 break;
2161
2162 case HCI_OP_CREATE_CONN:
2163 hci_cs_create_conn(hdev, ev->status);
2164 break;
2165
2166 case HCI_OP_ADD_SCO:
2167 hci_cs_add_sco(hdev, ev->status);
2168 break;
2169
2170 case HCI_OP_AUTH_REQUESTED:
2171 hci_cs_auth_requested(hdev, ev->status);
2172 break;
2173
2174 case HCI_OP_SET_CONN_ENCRYPT:
2175 hci_cs_set_conn_encrypt(hdev, ev->status);
2176 break;
2177
2178 case HCI_OP_REMOTE_NAME_REQ:
2179 hci_cs_remote_name_req(hdev, ev->status);
2180 break;
2181
2182 case HCI_OP_READ_REMOTE_FEATURES:
2183 hci_cs_read_remote_features(hdev, ev->status);
2184 break;
2185
2186 case HCI_OP_READ_REMOTE_EXT_FEATURES:
2187 hci_cs_read_remote_ext_features(hdev, ev->status);
2188 break;
2189
2190 case HCI_OP_SETUP_SYNC_CONN:
2191 hci_cs_setup_sync_conn(hdev, ev->status);
2192 break;
2193
2194 case HCI_OP_SNIFF_MODE:
2195 hci_cs_sniff_mode(hdev, ev->status);
2196 break;
2197
2198 case HCI_OP_EXIT_SNIFF_MODE:
2199 hci_cs_exit_sniff_mode(hdev, ev->status);
2200 break;
2201
2202 case HCI_OP_DISCONNECT:
2203 if (ev->status != 0)
2204 mgmt_disconnect_failed(hdev, NULL, ev->status);
2205 break;
2206
2207 case HCI_OP_LE_CREATE_CONN:
2208 hci_cs_le_create_conn(hdev, ev->status);
2209 break;
2210
2211 case HCI_OP_LE_START_ENC:
2212 hci_cs_le_start_enc(hdev, ev->status);
2213 break;
2214
2215 default:
2216 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
2217 break;
2218 }
2219
2220 if (ev->opcode != HCI_OP_NOP)
2221 del_timer(&hdev->cmd_timer);
2222
2223 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
2224 atomic_set(&hdev->cmd_cnt, 1);
2225 if (!skb_queue_empty(&hdev->cmd_q))
2226 queue_work(hdev->workqueue, &hdev->cmd_work);
2227 }
2228}
2229
2230static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2231{
2232 struct hci_ev_role_change *ev = (void *) skb->data;
2233 struct hci_conn *conn;
2234
2235 BT_DBG("%s status %d", hdev->name, ev->status);
2236
2237 hci_dev_lock(hdev);
2238
2239 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2240 if (conn) {
2241 if (!ev->status) {
2242 if (ev->role)
2243 conn->link_mode &= ~HCI_LM_MASTER;
2244 else
2245 conn->link_mode |= HCI_LM_MASTER;
2246 }
2247
2248 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->pend);
2249
2250 hci_role_switch_cfm(conn, ev->status, ev->role);
2251 }
2252
2253 hci_dev_unlock(hdev);
2254}
2255
2256static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
2257{
2258 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
2259 __le16 *ptr;
2260 int i;
2261
2262 skb_pull(skb, sizeof(*ev));
2263
2264 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
2265
2266 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
2267 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
2268 return;
2269 }
2270
2271 if (skb->len < ev->num_hndl * 4) {
2272 BT_DBG("%s bad parameters", hdev->name);
2273 return;
2274 }
2275
2276 for (i = 0, ptr = (__le16 *) skb->data; i < ev->num_hndl; i++) {
2277 struct hci_conn *conn;
2278 __u16 handle, count;
2279
2280 handle = get_unaligned_le16(ptr++);
2281 count = get_unaligned_le16(ptr++);
2282
2283 conn = hci_conn_hash_lookup_handle(hdev, handle);
2284 if (!conn)
2285 continue;
2286
2287 conn->sent -= count;
2288
2289 switch (conn->type) {
2290 case ACL_LINK:
2291 hdev->acl_cnt += count;
2292 if (hdev->acl_cnt > hdev->acl_pkts)
2293 hdev->acl_cnt = hdev->acl_pkts;
2294 break;
2295
2296 case LE_LINK:
2297 if (hdev->le_pkts) {
2298 hdev->le_cnt += count;
2299 if (hdev->le_cnt > hdev->le_pkts)
2300 hdev->le_cnt = hdev->le_pkts;
2301 } else {
2302 hdev->acl_cnt += count;
2303 if (hdev->acl_cnt > hdev->acl_pkts)
2304 hdev->acl_cnt = hdev->acl_pkts;
2305 }
2306 break;
2307
2308 case SCO_LINK:
2309 hdev->sco_cnt += count;
2310 if (hdev->sco_cnt > hdev->sco_pkts)
2311 hdev->sco_cnt = hdev->sco_pkts;
2312 break;
2313
2314 default:
2315 BT_ERR("Unknown type %d conn %p", conn->type, conn);
2316 break;
2317 }
2318 }
2319
2320 queue_work(hdev->workqueue, &hdev->tx_work);
2321}
2322
2323static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2324{
2325 struct hci_ev_mode_change *ev = (void *) skb->data;
2326 struct hci_conn *conn;
2327
2328 BT_DBG("%s status %d", hdev->name, ev->status);
2329
2330 hci_dev_lock(hdev);
2331
2332 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2333 if (conn) {
2334 conn->mode = ev->mode;
2335 conn->interval = __le16_to_cpu(ev->interval);
2336
2337 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
2338 if (conn->mode == HCI_CM_ACTIVE)
2339 conn->power_save = 1;
2340 else
2341 conn->power_save = 0;
2342 }
2343
2344 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->pend))
2345 hci_sco_setup(conn, ev->status);
2346 }
2347
2348 hci_dev_unlock(hdev);
2349}
2350
2351static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2352{
2353 struct hci_ev_pin_code_req *ev = (void *) skb->data;
2354 struct hci_conn *conn;
2355
2356 BT_DBG("%s", hdev->name);
2357
2358 hci_dev_lock(hdev);
2359
2360 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2361 if (!conn)
2362 goto unlock;
2363
2364 if (conn->state == BT_CONNECTED) {
2365 hci_conn_hold(conn);
2366 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
2367 hci_conn_put(conn);
2368 }
2369
2370 if (!test_bit(HCI_PAIRABLE, &hdev->flags))
2371 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
2372 sizeof(ev->bdaddr), &ev->bdaddr);
2373 else if (test_bit(HCI_MGMT, &hdev->flags)) {
2374 u8 secure;
2375
2376 if (conn->pending_sec_level == BT_SECURITY_HIGH)
2377 secure = 1;
2378 else
2379 secure = 0;
2380
2381 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
2382 }
2383
2384unlock:
2385 hci_dev_unlock(hdev);
2386}
2387
2388static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2389{
2390 struct hci_ev_link_key_req *ev = (void *) skb->data;
2391 struct hci_cp_link_key_reply cp;
2392 struct hci_conn *conn;
2393 struct link_key *key;
2394
2395 BT_DBG("%s", hdev->name);
2396
2397 if (!test_bit(HCI_LINK_KEYS, &hdev->flags))
2398 return;
2399
2400 hci_dev_lock(hdev);
2401
2402 key = hci_find_link_key(hdev, &ev->bdaddr);
2403 if (!key) {
2404 BT_DBG("%s link key not found for %s", hdev->name,
2405 batostr(&ev->bdaddr));
2406 goto not_found;
2407 }
2408
2409 BT_DBG("%s found key type %u for %s", hdev->name, key->type,
2410 batostr(&ev->bdaddr));
2411
2412 if (!test_bit(HCI_DEBUG_KEYS, &hdev->flags) &&
2413 key->type == HCI_LK_DEBUG_COMBINATION) {
2414 BT_DBG("%s ignoring debug key", hdev->name);
2415 goto not_found;
2416 }
2417
2418 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2419 if (conn) {
2420 if (key->type == HCI_LK_UNAUTH_COMBINATION &&
2421 conn->auth_type != 0xff &&
2422 (conn->auth_type & 0x01)) {
2423 BT_DBG("%s ignoring unauthenticated key", hdev->name);
2424 goto not_found;
2425 }
2426
2427 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
2428 conn->pending_sec_level == BT_SECURITY_HIGH) {
2429 BT_DBG("%s ignoring key unauthenticated for high \
2430 security", hdev->name);
2431 goto not_found;
2432 }
2433
2434 conn->key_type = key->type;
2435 conn->pin_length = key->pin_len;
2436 }
2437
2438 bacpy(&cp.bdaddr, &ev->bdaddr);
2439 memcpy(cp.link_key, key->val, 16);
2440
2441 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
2442
2443 hci_dev_unlock(hdev);
2444
2445 return;
2446
2447not_found:
2448 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
2449 hci_dev_unlock(hdev);
2450}
2451
2452static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
2453{
2454 struct hci_ev_link_key_notify *ev = (void *) skb->data;
2455 struct hci_conn *conn;
2456 u8 pin_len = 0;
2457
2458 BT_DBG("%s", hdev->name);
2459
2460 hci_dev_lock(hdev);
2461
2462 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2463 if (conn) {
2464 hci_conn_hold(conn);
2465 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
2466 pin_len = conn->pin_length;
2467
2468 if (ev->key_type != HCI_LK_CHANGED_COMBINATION)
2469 conn->key_type = ev->key_type;
2470
2471 hci_conn_put(conn);
2472 }
2473
2474 if (test_bit(HCI_LINK_KEYS, &hdev->flags))
2475 hci_add_link_key(hdev, conn, 1, &ev->bdaddr, ev->link_key,
2476 ev->key_type, pin_len);
2477
2478 hci_dev_unlock(hdev);
2479}
2480
2481static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
2482{
2483 struct hci_ev_clock_offset *ev = (void *) skb->data;
2484 struct hci_conn *conn;
2485
2486 BT_DBG("%s status %d", hdev->name, ev->status);
2487
2488 hci_dev_lock(hdev);
2489
2490 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2491 if (conn && !ev->status) {
2492 struct inquiry_entry *ie;
2493
2494 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
2495 if (ie) {
2496 ie->data.clock_offset = ev->clock_offset;
2497 ie->timestamp = jiffies;
2498 }
2499 }
2500
2501 hci_dev_unlock(hdev);
2502}
2503
2504static inline void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
2505{
2506 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
2507 struct hci_conn *conn;
2508
2509 BT_DBG("%s status %d", hdev->name, ev->status);
2510
2511 hci_dev_lock(hdev);
2512
2513 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2514 if (conn && !ev->status)
2515 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
2516
2517 hci_dev_unlock(hdev);
2518}
2519
2520static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
2521{
2522 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
2523 struct inquiry_entry *ie;
2524
2525 BT_DBG("%s", hdev->name);
2526
2527 hci_dev_lock(hdev);
2528
2529 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2530 if (ie) {
2531 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
2532 ie->timestamp = jiffies;
2533 }
2534
2535 hci_dev_unlock(hdev);
2536}
2537
2538static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
2539{
2540 struct inquiry_data data;
2541 int num_rsp = *((__u8 *) skb->data);
2542
2543 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
2544
2545 if (!num_rsp)
2546 return;
2547
2548 hci_dev_lock(hdev);
2549
2550 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
2551 struct inquiry_info_with_rssi_and_pscan_mode *info;
2552 info = (void *) (skb->data + 1);
2553
2554 for (; num_rsp; num_rsp--, info++) {
2555 bacpy(&data.bdaddr, &info->bdaddr);
2556 data.pscan_rep_mode = info->pscan_rep_mode;
2557 data.pscan_period_mode = info->pscan_period_mode;
2558 data.pscan_mode = info->pscan_mode;
2559 memcpy(data.dev_class, info->dev_class, 3);
2560 data.clock_offset = info->clock_offset;
2561 data.rssi = info->rssi;
2562 data.ssp_mode = 0x00;
2563 hci_inquiry_cache_update(hdev, &data);
2564 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2565 info->dev_class, info->rssi,
2566 NULL);
2567 }
2568 } else {
2569 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
2570
2571 for (; num_rsp; num_rsp--, info++) {
2572 bacpy(&data.bdaddr, &info->bdaddr);
2573 data.pscan_rep_mode = info->pscan_rep_mode;
2574 data.pscan_period_mode = info->pscan_period_mode;
2575 data.pscan_mode = 0x00;
2576 memcpy(data.dev_class, info->dev_class, 3);
2577 data.clock_offset = info->clock_offset;
2578 data.rssi = info->rssi;
2579 data.ssp_mode = 0x00;
2580 hci_inquiry_cache_update(hdev, &data);
2581 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2582 info->dev_class, info->rssi,
2583 NULL);
2584 }
2585 }
2586
2587 hci_dev_unlock(hdev);
2588}
2589
2590static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
2591{
2592 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
2593 struct hci_conn *conn;
2594
2595 BT_DBG("%s", hdev->name);
2596
2597 hci_dev_lock(hdev);
2598
2599 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
2600 if (!conn)
2601 goto unlock;
2602
2603 if (!ev->status && ev->page == 0x01) {
2604 struct inquiry_entry *ie;
2605
2606 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
2607 if (ie)
2608 ie->data.ssp_mode = (ev->features[0] & 0x01);
2609
2610 conn->ssp_mode = (ev->features[0] & 0x01);
2611 }
2612
2613 if (conn->state != BT_CONFIG)
2614 goto unlock;
2615
2616 if (!ev->status) {
2617 struct hci_cp_remote_name_req cp;
2618 memset(&cp, 0, sizeof(cp));
2619 bacpy(&cp.bdaddr, &conn->dst);
2620 cp.pscan_rep_mode = 0x02;
2621 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2622 }
2623
2624 if (!hci_outgoing_auth_needed(hdev, conn)) {
2625 conn->state = BT_CONNECTED;
2626 hci_proto_connect_cfm(conn, ev->status);
2627 hci_conn_put(conn);
2628 }
2629
2630unlock:
2631 hci_dev_unlock(hdev);
2632}
2633
2634static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2635{
2636 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
2637 struct hci_conn *conn;
2638
2639 BT_DBG("%s status %d", hdev->name, ev->status);
2640
2641 hci_dev_lock(hdev);
2642
2643 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
2644 if (!conn) {
2645 if (ev->link_type == ESCO_LINK)
2646 goto unlock;
2647
2648 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
2649 if (!conn)
2650 goto unlock;
2651
2652 conn->type = SCO_LINK;
2653 }
2654
2655 switch (ev->status) {
2656 case 0x00:
2657 conn->handle = __le16_to_cpu(ev->handle);
2658 conn->state = BT_CONNECTED;
2659
2660 hci_conn_hold_device(conn);
2661 hci_conn_add_sysfs(conn);
2662 break;
2663
2664 case 0x11: /* Unsupported Feature or Parameter Value */
2665 case 0x1c: /* SCO interval rejected */
2666 case 0x1a: /* Unsupported Remote Feature */
2667 case 0x1f: /* Unspecified error */
2668 if (conn->out && conn->attempt < 2) {
2669 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
2670 (hdev->esco_type & EDR_ESCO_MASK);
2671 hci_setup_sync(conn, conn->link->handle);
2672 goto unlock;
2673 }
2674 /* fall through */
2675
2676 default:
2677 conn->state = BT_CLOSED;
2678 break;
2679 }
2680
2681 hci_proto_connect_cfm(conn, ev->status);
2682 if (ev->status)
2683 hci_conn_del(conn);
2684
2685unlock:
2686 hci_dev_unlock(hdev);
2687}
2688
2689static inline void hci_sync_conn_changed_evt(struct hci_dev *hdev, struct sk_buff *skb)
2690{
2691 BT_DBG("%s", hdev->name);
2692}
2693
2694static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
2695{
2696 struct hci_ev_sniff_subrate *ev = (void *) skb->data;
2697
2698 BT_DBG("%s status %d", hdev->name, ev->status);
2699}
2700
2701static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
2702{
2703 struct inquiry_data data;
2704 struct extended_inquiry_info *info = (void *) (skb->data + 1);
2705 int num_rsp = *((__u8 *) skb->data);
2706
2707 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
2708
2709 if (!num_rsp)
2710 return;
2711
2712 hci_dev_lock(hdev);
2713
2714 for (; num_rsp; num_rsp--, info++) {
2715 bacpy(&data.bdaddr, &info->bdaddr);
2716 data.pscan_rep_mode = info->pscan_rep_mode;
2717 data.pscan_period_mode = info->pscan_period_mode;
2718 data.pscan_mode = 0x00;
2719 memcpy(data.dev_class, info->dev_class, 3);
2720 data.clock_offset = info->clock_offset;
2721 data.rssi = info->rssi;
2722 data.ssp_mode = 0x01;
2723 hci_inquiry_cache_update(hdev, &data);
2724 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
2725 info->dev_class, info->rssi, info->data);
2726 }
2727
2728 hci_dev_unlock(hdev);
2729}
2730
2731static inline u8 hci_get_auth_req(struct hci_conn *conn)
2732{
2733 /* If remote requests dedicated bonding follow that lead */
2734 if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03) {
2735 /* If both remote and local IO capabilities allow MITM
2736 * protection then require it, otherwise don't */
2737 if (conn->remote_cap == 0x03 || conn->io_capability == 0x03)
2738 return 0x02;
2739 else
2740 return 0x03;
2741 }
2742
2743 /* If remote requests no-bonding follow that lead */
2744 if (conn->remote_auth == 0x00 || conn->remote_auth == 0x01)
2745 return conn->remote_auth | (conn->auth_type & 0x01);
2746
2747 return conn->auth_type;
2748}
2749
2750static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
2751{
2752 struct hci_ev_io_capa_request *ev = (void *) skb->data;
2753 struct hci_conn *conn;
2754
2755 BT_DBG("%s", hdev->name);
2756
2757 hci_dev_lock(hdev);
2758
2759 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2760 if (!conn)
2761 goto unlock;
2762
2763 hci_conn_hold(conn);
2764
2765 if (!test_bit(HCI_MGMT, &hdev->flags))
2766 goto unlock;
2767
2768 if (test_bit(HCI_PAIRABLE, &hdev->flags) ||
2769 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
2770 struct hci_cp_io_capability_reply cp;
2771
2772 bacpy(&cp.bdaddr, &ev->bdaddr);
2773 cp.capability = conn->io_capability;
2774 conn->auth_type = hci_get_auth_req(conn);
2775 cp.authentication = conn->auth_type;
2776
2777 if ((conn->out == 0x01 || conn->remote_oob == 0x01) &&
2778 hci_find_remote_oob_data(hdev, &conn->dst))
2779 cp.oob_data = 0x01;
2780 else
2781 cp.oob_data = 0x00;
2782
2783 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
2784 sizeof(cp), &cp);
2785 } else {
2786 struct hci_cp_io_capability_neg_reply cp;
2787
2788 bacpy(&cp.bdaddr, &ev->bdaddr);
2789 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
2790
2791 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
2792 sizeof(cp), &cp);
2793 }
2794
2795unlock:
2796 hci_dev_unlock(hdev);
2797}
2798
2799static inline void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
2800{
2801 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
2802 struct hci_conn *conn;
2803
2804 BT_DBG("%s", hdev->name);
2805
2806 hci_dev_lock(hdev);
2807
2808 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2809 if (!conn)
2810 goto unlock;
2811
2812 conn->remote_cap = ev->capability;
2813 conn->remote_oob = ev->oob_data;
2814 conn->remote_auth = ev->authentication;
2815
2816unlock:
2817 hci_dev_unlock(hdev);
2818}
2819
2820static inline void hci_user_confirm_request_evt(struct hci_dev *hdev,
2821 struct sk_buff *skb)
2822{
2823 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
2824 int loc_mitm, rem_mitm, confirm_hint = 0;
2825 struct hci_conn *conn;
2826
2827 BT_DBG("%s", hdev->name);
2828
2829 hci_dev_lock(hdev);
2830
2831 if (!test_bit(HCI_MGMT, &hdev->flags))
2832 goto unlock;
2833
2834 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2835 if (!conn)
2836 goto unlock;
2837
2838 loc_mitm = (conn->auth_type & 0x01);
2839 rem_mitm = (conn->remote_auth & 0x01);
2840
2841 /* If we require MITM but the remote device can't provide that
2842 * (it has NoInputNoOutput) then reject the confirmation
2843 * request. The only exception is when we're dedicated bonding
2844 * initiators (connect_cfm_cb set) since then we always have the MITM
2845 * bit set. */
2846 if (!conn->connect_cfm_cb && loc_mitm && conn->remote_cap == 0x03) {
2847 BT_DBG("Rejecting request: remote device can't provide MITM");
2848 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
2849 sizeof(ev->bdaddr), &ev->bdaddr);
2850 goto unlock;
2851 }
2852
2853 /* If no side requires MITM protection; auto-accept */
2854 if ((!loc_mitm || conn->remote_cap == 0x03) &&
2855 (!rem_mitm || conn->io_capability == 0x03)) {
2856
2857 /* If we're not the initiators request authorization to
2858 * proceed from user space (mgmt_user_confirm with
2859 * confirm_hint set to 1). */
2860 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
2861 BT_DBG("Confirming auto-accept as acceptor");
2862 confirm_hint = 1;
2863 goto confirm;
2864 }
2865
2866 BT_DBG("Auto-accept of user confirmation with %ums delay",
2867 hdev->auto_accept_delay);
2868
2869 if (hdev->auto_accept_delay > 0) {
2870 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
2871 mod_timer(&conn->auto_accept_timer, jiffies + delay);
2872 goto unlock;
2873 }
2874
2875 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
2876 sizeof(ev->bdaddr), &ev->bdaddr);
2877 goto unlock;
2878 }
2879
2880confirm:
2881 mgmt_user_confirm_request(hdev, &ev->bdaddr, ev->passkey,
2882 confirm_hint);
2883
2884unlock:
2885 hci_dev_unlock(hdev);
2886}
2887
2888static inline void hci_user_passkey_request_evt(struct hci_dev *hdev,
2889 struct sk_buff *skb)
2890{
2891 struct hci_ev_user_passkey_req *ev = (void *) skb->data;
2892
2893 BT_DBG("%s", hdev->name);
2894
2895 hci_dev_lock(hdev);
2896
2897 if (test_bit(HCI_MGMT, &hdev->flags))
2898 mgmt_user_passkey_request(hdev, &ev->bdaddr);
2899
2900 hci_dev_unlock(hdev);
2901}
2902
2903static inline void hci_simple_pair_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2904{
2905 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
2906 struct hci_conn *conn;
2907
2908 BT_DBG("%s", hdev->name);
2909
2910 hci_dev_lock(hdev);
2911
2912 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2913 if (!conn)
2914 goto unlock;
2915
2916 /* To avoid duplicate auth_failed events to user space we check
2917 * the HCI_CONN_AUTH_PEND flag which will be set if we
2918 * initiated the authentication. A traditional auth_complete
2919 * event gets always produced as initiator and is also mapped to
2920 * the mgmt_auth_failed event */
2921 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->pend) && ev->status != 0)
2922 mgmt_auth_failed(hdev, &conn->dst, ev->status);
2923
2924 hci_conn_put(conn);
2925
2926unlock:
2927 hci_dev_unlock(hdev);
2928}
2929
2930static inline void hci_remote_host_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
2931{
2932 struct hci_ev_remote_host_features *ev = (void *) skb->data;
2933 struct inquiry_entry *ie;
2934
2935 BT_DBG("%s", hdev->name);
2936
2937 hci_dev_lock(hdev);
2938
2939 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2940 if (ie)
2941 ie->data.ssp_mode = (ev->features[0] & 0x01);
2942
2943 hci_dev_unlock(hdev);
2944}
2945
2946static inline void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
2947 struct sk_buff *skb)
2948{
2949 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
2950 struct oob_data *data;
2951
2952 BT_DBG("%s", hdev->name);
2953
2954 hci_dev_lock(hdev);
2955
2956 if (!test_bit(HCI_MGMT, &hdev->flags))
2957 goto unlock;
2958
2959 data = hci_find_remote_oob_data(hdev, &ev->bdaddr);
2960 if (data) {
2961 struct hci_cp_remote_oob_data_reply cp;
2962
2963 bacpy(&cp.bdaddr, &ev->bdaddr);
2964 memcpy(cp.hash, data->hash, sizeof(cp.hash));
2965 memcpy(cp.randomizer, data->randomizer, sizeof(cp.randomizer));
2966
2967 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY, sizeof(cp),
2968 &cp);
2969 } else {
2970 struct hci_cp_remote_oob_data_neg_reply cp;
2971
2972 bacpy(&cp.bdaddr, &ev->bdaddr);
2973 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY, sizeof(cp),
2974 &cp);
2975 }
2976
2977unlock:
2978 hci_dev_unlock(hdev);
2979}
2980
2981static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
2982{
2983 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
2984 struct hci_conn *conn;
2985
2986 BT_DBG("%s status %d", hdev->name, ev->status);
2987
2988 hci_dev_lock(hdev);
2989
2990 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &ev->bdaddr);
2991 if (!conn) {
2992 conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr);
2993 if (!conn) {
2994 BT_ERR("No memory for new connection");
2995 hci_dev_unlock(hdev);
2996 return;
2997 }
2998
2999 conn->dst_type = ev->bdaddr_type;
3000 }
3001
3002 if (ev->status) {
3003 mgmt_connect_failed(hdev, &ev->bdaddr, conn->type,
3004 conn->dst_type, ev->status);
3005 hci_proto_connect_cfm(conn, ev->status);
3006 conn->state = BT_CLOSED;
3007 hci_conn_del(conn);
3008 goto unlock;
3009 }
3010
3011 mgmt_connected(hdev, &ev->bdaddr, conn->type, conn->dst_type);
3012
3013 conn->sec_level = BT_SECURITY_LOW;
3014 conn->handle = __le16_to_cpu(ev->handle);
3015 conn->state = BT_CONNECTED;
3016
3017 hci_conn_hold_device(conn);
3018 hci_conn_add_sysfs(conn);
3019
3020 hci_proto_connect_cfm(conn, ev->status);
3021
3022unlock:
3023 hci_dev_unlock(hdev);
3024}
3025
3026static inline void hci_le_adv_report_evt(struct hci_dev *hdev,
3027 struct sk_buff *skb)
3028{
3029 u8 num_reports = skb->data[0];
3030 void *ptr = &skb->data[1];
3031
3032 hci_dev_lock(hdev);
3033
3034 while (num_reports--) {
3035 struct hci_ev_le_advertising_info *ev = ptr;
3036
3037 hci_add_adv_entry(hdev, ev);
3038
3039 ptr += sizeof(*ev) + ev->length + 1;
3040 }
3041
3042 hci_dev_unlock(hdev);
3043}
3044
3045static inline void hci_le_ltk_request_evt(struct hci_dev *hdev,
3046 struct sk_buff *skb)
3047{
3048 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
3049 struct hci_cp_le_ltk_reply cp;
3050 struct hci_cp_le_ltk_neg_reply neg;
3051 struct hci_conn *conn;
3052 struct link_key *ltk;
3053
3054 BT_DBG("%s handle %d", hdev->name, cpu_to_le16(ev->handle));
3055
3056 hci_dev_lock(hdev);
3057
3058 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3059 if (conn == NULL)
3060 goto not_found;
3061
3062 ltk = hci_find_ltk(hdev, ev->ediv, ev->random);
3063 if (ltk == NULL)
3064 goto not_found;
3065
3066 memcpy(cp.ltk, ltk->val, sizeof(ltk->val));
3067 cp.handle = cpu_to_le16(conn->handle);
3068 conn->pin_length = ltk->pin_len;
3069
3070 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
3071
3072 hci_dev_unlock(hdev);
3073
3074 return;
3075
3076not_found:
3077 neg.handle = ev->handle;
3078 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
3079 hci_dev_unlock(hdev);
3080}
3081
3082static inline void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
3083{
3084 struct hci_ev_le_meta *le_ev = (void *) skb->data;
3085
3086 skb_pull(skb, sizeof(*le_ev));
3087
3088 switch (le_ev->subevent) {
3089 case HCI_EV_LE_CONN_COMPLETE:
3090 hci_le_conn_complete_evt(hdev, skb);
3091 break;
3092
3093 case HCI_EV_LE_ADVERTISING_REPORT:
3094 hci_le_adv_report_evt(hdev, skb);
3095 break;
3096
3097 case HCI_EV_LE_LTK_REQ:
3098 hci_le_ltk_request_evt(hdev, skb);
3099 break;
3100
3101 default:
3102 break;
3103 }
3104}
3105
3106void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
3107{
3108 struct hci_event_hdr *hdr = (void *) skb->data;
3109 __u8 event = hdr->evt;
3110
3111 skb_pull(skb, HCI_EVENT_HDR_SIZE);
3112
3113 switch (event) {
3114 case HCI_EV_INQUIRY_COMPLETE:
3115 hci_inquiry_complete_evt(hdev, skb);
3116 break;
3117
3118 case HCI_EV_INQUIRY_RESULT:
3119 hci_inquiry_result_evt(hdev, skb);
3120 break;
3121
3122 case HCI_EV_CONN_COMPLETE:
3123 hci_conn_complete_evt(hdev, skb);
3124 break;
3125
3126 case HCI_EV_CONN_REQUEST:
3127 hci_conn_request_evt(hdev, skb);
3128 break;
3129
3130 case HCI_EV_DISCONN_COMPLETE:
3131 hci_disconn_complete_evt(hdev, skb);
3132 break;
3133
3134 case HCI_EV_AUTH_COMPLETE:
3135 hci_auth_complete_evt(hdev, skb);
3136 break;
3137
3138 case HCI_EV_REMOTE_NAME:
3139 hci_remote_name_evt(hdev, skb);
3140 break;
3141
3142 case HCI_EV_ENCRYPT_CHANGE:
3143 hci_encrypt_change_evt(hdev, skb);
3144 break;
3145
3146 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
3147 hci_change_link_key_complete_evt(hdev, skb);
3148 break;
3149
3150 case HCI_EV_REMOTE_FEATURES:
3151 hci_remote_features_evt(hdev, skb);
3152 break;
3153
3154 case HCI_EV_REMOTE_VERSION:
3155 hci_remote_version_evt(hdev, skb);
3156 break;
3157
3158 case HCI_EV_QOS_SETUP_COMPLETE:
3159 hci_qos_setup_complete_evt(hdev, skb);
3160 break;
3161
3162 case HCI_EV_CMD_COMPLETE:
3163 hci_cmd_complete_evt(hdev, skb);
3164 break;
3165
3166 case HCI_EV_CMD_STATUS:
3167 hci_cmd_status_evt(hdev, skb);
3168 break;
3169
3170 case HCI_EV_ROLE_CHANGE:
3171 hci_role_change_evt(hdev, skb);
3172 break;
3173
3174 case HCI_EV_NUM_COMP_PKTS:
3175 hci_num_comp_pkts_evt(hdev, skb);
3176 break;
3177
3178 case HCI_EV_MODE_CHANGE:
3179 hci_mode_change_evt(hdev, skb);
3180 break;
3181
3182 case HCI_EV_PIN_CODE_REQ:
3183 hci_pin_code_request_evt(hdev, skb);
3184 break;
3185
3186 case HCI_EV_LINK_KEY_REQ:
3187 hci_link_key_request_evt(hdev, skb);
3188 break;
3189
3190 case HCI_EV_LINK_KEY_NOTIFY:
3191 hci_link_key_notify_evt(hdev, skb);
3192 break;
3193
3194 case HCI_EV_CLOCK_OFFSET:
3195 hci_clock_offset_evt(hdev, skb);
3196 break;
3197
3198 case HCI_EV_PKT_TYPE_CHANGE:
3199 hci_pkt_type_change_evt(hdev, skb);
3200 break;
3201
3202 case HCI_EV_PSCAN_REP_MODE:
3203 hci_pscan_rep_mode_evt(hdev, skb);
3204 break;
3205
3206 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
3207 hci_inquiry_result_with_rssi_evt(hdev, skb);
3208 break;
3209
3210 case HCI_EV_REMOTE_EXT_FEATURES:
3211 hci_remote_ext_features_evt(hdev, skb);
3212 break;
3213
3214 case HCI_EV_SYNC_CONN_COMPLETE:
3215 hci_sync_conn_complete_evt(hdev, skb);
3216 break;
3217
3218 case HCI_EV_SYNC_CONN_CHANGED:
3219 hci_sync_conn_changed_evt(hdev, skb);
3220 break;
3221
3222 case HCI_EV_SNIFF_SUBRATE:
3223 hci_sniff_subrate_evt(hdev, skb);
3224 break;
3225
3226 case HCI_EV_EXTENDED_INQUIRY_RESULT:
3227 hci_extended_inquiry_result_evt(hdev, skb);
3228 break;
3229
3230 case HCI_EV_IO_CAPA_REQUEST:
3231 hci_io_capa_request_evt(hdev, skb);
3232 break;
3233
3234 case HCI_EV_IO_CAPA_REPLY:
3235 hci_io_capa_reply_evt(hdev, skb);
3236 break;
3237
3238 case HCI_EV_USER_CONFIRM_REQUEST:
3239 hci_user_confirm_request_evt(hdev, skb);
3240 break;
3241
3242 case HCI_EV_USER_PASSKEY_REQUEST:
3243 hci_user_passkey_request_evt(hdev, skb);
3244 break;
3245
3246 case HCI_EV_SIMPLE_PAIR_COMPLETE:
3247 hci_simple_pair_complete_evt(hdev, skb);
3248 break;
3249
3250 case HCI_EV_REMOTE_HOST_FEATURES:
3251 hci_remote_host_features_evt(hdev, skb);
3252 break;
3253
3254 case HCI_EV_LE_META:
3255 hci_le_meta_evt(hdev, skb);
3256 break;
3257
3258 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
3259 hci_remote_oob_data_request_evt(hdev, skb);
3260 break;
3261
3262 default:
3263 BT_DBG("%s event 0x%x", hdev->name, event);
3264 break;
3265 }
3266
3267 kfree_skb(skb);
3268 hdev->stat.evt_rx++;
3269}
3270
3271/* Generate internal stack event */
3272void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
3273{
3274 struct hci_event_hdr *hdr;
3275 struct hci_ev_stack_internal *ev;
3276 struct sk_buff *skb;
3277
3278 skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC);
3279 if (!skb)
3280 return;
3281
3282 hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE);
3283 hdr->evt = HCI_EV_STACK_INTERNAL;
3284 hdr->plen = sizeof(*ev) + dlen;
3285
3286 ev = (void *) skb_put(skb, sizeof(*ev) + dlen);
3287 ev->type = type;
3288 memcpy(ev->data, data, dlen);
3289
3290 bt_cb(skb)->incoming = 1;
3291 __net_timestamp(skb);
3292
3293 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
3294 skb->dev = (void *) hdev;
3295 hci_send_to_sock(hdev, skb, NULL);
3296 kfree_skb(skb);
3297}
3298
3299module_param(enable_le, bool, 0644);
3300MODULE_PARM_DESC(enable_le, "Enable LE support");
Linux kernel - Deliverables
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