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Bluetooth: Fix unnecessary error message for HCI request completion
[mirror_ubuntu-bionic-kernel.git] / net / bluetooth / hci_event.c
CommitLineData
8e87d142 1/*
1da177e4 2 BlueZ - Bluetooth protocol stack for Linux
2d0a0346 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
1da177e4
LT		 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
8e87d142
YH		 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
1da177e4
LT		 18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
8e87d142
YH		 20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
1da177e4
LT		 22 SOFTWARE IS DISCLAIMED.
23*/
24
25/* Bluetooth HCI event handling. */
26
1da177e4
LT		 27#include <asm/unaligned.h>
28
29#include <net/bluetooth/bluetooth.h>
30#include <net/bluetooth/hci_core.h>
f0d6a0ea 31#include <net/bluetooth/mgmt.h>
7ef9fbf0 32
0857dd3b 33#include "hci_request.h"
23b9ceb7 34#include "hci_debugfs.h"
7024728e 35#include "a2mp.h"
7ef9fbf0 36#include "amp.h"
2ceba539 37#include "smp.h"
1da177e4 38
aa5b0345
MH		 39#define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
40 "\x00\x00\x00\x00\x00\x00\x00\x00"
41
1da177e4
LT		 42/* Handle HCI Event packets */
43
a9de9248 44static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 45{
a9de9248 46 __u8 status = *((__u8 *) skb->data);
1da177e4 47
9f1db00c 48 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1da177e4 49
82f4785c 50 if (status)
a9de9248 51 return;
1da177e4 52
89352e7d 53 clear_bit(HCI_INQUIRY, &hdev->flags);
4e857c58 54 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3e13fa1e 55 wake_up_bit(&hdev->flags, HCI_INQUIRY);
89352e7d 56
50143a43 57 hci_dev_lock(hdev);
168b8a25
JP		 58 /* Set discovery state to stopped if we're not doing LE active
59 * scanning.
60 */
61 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
62 hdev->le_scan_type != LE_SCAN_ACTIVE)
63 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
50143a43
JH		 64 hci_dev_unlock(hdev);
65
a9de9248
MH		 66 hci_conn_check_pending(hdev);
67}
6bd57416 68
4d93483b
AG		 69static void hci_cc_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
70{
71 __u8 status = *((__u8 *) skb->data);
72
9f1db00c 73 BT_DBG("%s status 0x%2.2x", hdev->name, status);
ae854a70
AG		 74
75 if (status)
76 return;
77
a1536da2 78 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
4d93483b
AG		 79}
80
a9de9248
MH		 81static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
82{
83 __u8 status = *((__u8 *) skb->data);
6bd57416 84
9f1db00c 85 BT_DBG("%s status 0x%2.2x", hdev->name, status);
6bd57416 86
a9de9248
MH		 87 if (status)
88 return;
1da177e4 89
a358dc11 90 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
ae854a70 91
a9de9248
MH		 92 hci_conn_check_pending(hdev);
93}
94
807deac2
GP		 95static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev,
96 struct sk_buff *skb)
a9de9248
MH		 97{
98 BT_DBG("%s", hdev->name);
99}
100
101static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
102{
103 struct hci_rp_role_discovery *rp = (void *) skb->data;
104 struct hci_conn *conn;
105
9f1db00c 106 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
a9de9248
MH		 107
108 if (rp->status)
109 return;
110
111 hci_dev_lock(hdev);
112
113 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
40bef302
JH		 114 if (conn)
115 conn->role = rp->role;
a9de9248
MH		 116
117 hci_dev_unlock(hdev);
1da177e4
LT		 118}
119
e4e8e37c
MH		 120static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
121{
122 struct hci_rp_read_link_policy *rp = (void *) skb->data;
123 struct hci_conn *conn;
124
9f1db00c 125 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
e4e8e37c
MH		 126
127 if (rp->status)
128 return;
129
130 hci_dev_lock(hdev);
131
132 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
133 if (conn)
134 conn->link_policy = __le16_to_cpu(rp->policy);
135
136 hci_dev_unlock(hdev);
137}
138
a9de9248 139static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 140{
a9de9248 141 struct hci_rp_write_link_policy *rp = (void *) skb->data;
1da177e4 142 struct hci_conn *conn;
04837f64 143 void *sent;
1da177e4 144
9f1db00c 145 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1da177e4 146
a9de9248
MH		 147 if (rp->status)
148 return;
1da177e4 149
a9de9248
MH		 150 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
151 if (!sent)
152 return;
1da177e4 153
a9de9248 154 hci_dev_lock(hdev);
1da177e4 155
a9de9248 156 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
e4e8e37c 157 if (conn)
83985319 158 conn->link_policy = get_unaligned_le16(sent + 2);
1da177e4 159
a9de9248
MH		 160 hci_dev_unlock(hdev);
161}
1da177e4 162
807deac2
GP		 163static void hci_cc_read_def_link_policy(struct hci_dev *hdev,
164 struct sk_buff *skb)
e4e8e37c
MH		 165{
166 struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
167
9f1db00c 168 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
e4e8e37c
MH		 169
170 if (rp->status)
171 return;
172
173 hdev->link_policy = __le16_to_cpu(rp->policy);
174}
175
807deac2
GP		 176static void hci_cc_write_def_link_policy(struct hci_dev *hdev,
177 struct sk_buff *skb)
e4e8e37c
MH		 178{
179 __u8 status = *((__u8 *) skb->data);
180 void *sent;
181
9f1db00c 182 BT_DBG("%s status 0x%2.2x", hdev->name, status);
e4e8e37c 183
45296acd
MH		 184 if (status)
185 return;
186
e4e8e37c
MH		 187 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
188 if (!sent)
189 return;
190
45296acd 191 hdev->link_policy = get_unaligned_le16(sent);
e4e8e37c
MH		 192}
193
a9de9248
MH		 194static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
195{
196 __u8 status = *((__u8 *) skb->data);
04837f64 197
9f1db00c 198 BT_DBG("%s status 0x%2.2x", hdev->name, status);
04837f64 199
10572132
GP		 200 clear_bit(HCI_RESET, &hdev->flags);
201
8761f9d6
MH		 202 if (status)
203 return;
204
a297e97c 205 /* Reset all non-persistent flags */
eacb44df 206 hci_dev_clear_volatile_flags(hdev);
69775ff6 207
39c5d970
JH		 208 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
209
bbaf444a
JH		 210 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
211 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
3f0f524b
JH		 212
213 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
214 hdev->adv_data_len = 0;
f8e808bd
MH		 215
216 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
217 hdev->scan_rsp_data_len = 0;
06f5b778 218
533553f8
MH		 219 hdev->le_scan_type = LE_SCAN_PASSIVE;
220
06f5b778 221 hdev->ssp_debug_mode = 0;
a4d5504d
MH		 222
223 hci_bdaddr_list_clear(&hdev->le_white_list);
a9de9248 224}
04837f64 225
c2f0f979
MH		 226static void hci_cc_read_stored_link_key(struct hci_dev *hdev,
227 struct sk_buff *skb)
228{
229 struct hci_rp_read_stored_link_key *rp = (void *)skb->data;
230 struct hci_cp_read_stored_link_key *sent;
231
232 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
233
234 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
235 if (!sent)
236 return;
237
238 if (!rp->status && sent->read_all == 0x01) {
239 hdev->stored_max_keys = rp->max_keys;
240 hdev->stored_num_keys = rp->num_keys;
241 }
242}
243
a9366120
MH		 244static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
245 struct sk_buff *skb)
246{
247 struct hci_rp_delete_stored_link_key *rp = (void *)skb->data;
248
249 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
250
251 if (rp->status)
252 return;
253
254 if (rp->num_keys <= hdev->stored_num_keys)
255 hdev->stored_num_keys -= rp->num_keys;
256 else
257 hdev->stored_num_keys = 0;
258}
259
a9de9248
MH		 260static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
261{
262 __u8 status = *((__u8 *) skb->data);
263 void *sent;
04837f64 264
9f1db00c 265 BT_DBG("%s status 0x%2.2x", hdev->name, status);
04837f64 266
a9de9248
MH		 267 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
268 if (!sent)
269 return;
04837f64 270
56e5cb86
JH		 271 hci_dev_lock(hdev);
272
d7a5a11d 273 if (hci_dev_test_flag(hdev, HCI_MGMT))
f51d5b24 274 mgmt_set_local_name_complete(hdev, sent, status);
28cc7bde
JH		 275 else if (!status)
276 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
f51d5b24 277
56e5cb86 278 hci_dev_unlock(hdev);
a9de9248
MH		 279}
280
281static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
282{
283 struct hci_rp_read_local_name *rp = (void *) skb->data;
284
9f1db00c 285 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
a9de9248
MH		 286
287 if (rp->status)
288 return;
289
d7a5a11d
MH		 290 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
291 hci_dev_test_flag(hdev, HCI_CONFIG))
db99b5fc 292 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
a9de9248
MH		 293}
294
295static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
296{
297 __u8 status = *((__u8 *) skb->data);
298 void *sent;
299
9f1db00c 300 BT_DBG("%s status 0x%2.2x", hdev->name, status);
a9de9248
MH		 301
302 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
303 if (!sent)
304 return;
305
5c1a4c8f
JK		 306 hci_dev_lock(hdev);
307
a9de9248
MH		 308 if (!status) {
309 __u8 param = *((__u8 *) sent);
310
311 if (param == AUTH_ENABLED)
312 set_bit(HCI_AUTH, &hdev->flags);
313 else
314 clear_bit(HCI_AUTH, &hdev->flags);
1da177e4 315 }
a9de9248 316
d7a5a11d 317 if (hci_dev_test_flag(hdev, HCI_MGMT))
33ef95ed 318 mgmt_auth_enable_complete(hdev, status);
5c1a4c8f
JK		 319
320 hci_dev_unlock(hdev);
1da177e4
LT		 321}
322
a9de9248 323static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 324{
a9de9248 325 __u8 status = *((__u8 *) skb->data);
45296acd 326 __u8 param;
1da177e4
LT		 327 void *sent;
328
9f1db00c 329 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1da177e4 330
45296acd
MH		 331 if (status)
332 return;
333
a9de9248
MH		 334 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
335 if (!sent)
336 return;
1da177e4 337
45296acd 338 param = *((__u8 *) sent);
a9de9248 339
45296acd
MH		 340 if (param)
341 set_bit(HCI_ENCRYPT, &hdev->flags);
342 else
343 clear_bit(HCI_ENCRYPT, &hdev->flags);
a9de9248 344}
1da177e4 345
a9de9248
MH		 346static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
347{
45296acd
MH		 348 __u8 status = *((__u8 *) skb->data);
349 __u8 param;
a9de9248 350 void *sent;
1da177e4 351
9f1db00c 352 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1da177e4 353
a9de9248
MH		 354 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
355 if (!sent)
356 return;
1da177e4 357
36f7fc7e
JH		 358 param = *((__u8 *) sent);
359
56e5cb86
JH		 360 hci_dev_lock(hdev);
361
fa1bd918 362 if (status) {
2d7cee58
JH		 363 hdev->discov_timeout = 0;
364 goto done;
365 }
366
bc6d2d04 367 if (param & SCAN_INQUIRY)
36f7fc7e 368 set_bit(HCI_ISCAN, &hdev->flags);
bc6d2d04
JH		 369 else
370 clear_bit(HCI_ISCAN, &hdev->flags);
36f7fc7e 371
031547d8 372 if (param & SCAN_PAGE)
36f7fc7e 373 set_bit(HCI_PSCAN, &hdev->flags);
bc6d2d04 374 else
204e3990 375 clear_bit(HCI_PSCAN, &hdev->flags);
1da177e4 376
36f7fc7e 377done:
56e5cb86 378 hci_dev_unlock(hdev);
a9de9248 379}
1da177e4 380
a9de9248
MH		 381static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
382{
383 struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
1da177e4 384
9f1db00c 385 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1da177e4 386
a9de9248
MH		 387 if (rp->status)
388 return;
1da177e4 389
a9de9248 390 memcpy(hdev->dev_class, rp->dev_class, 3);
1da177e4 391
a9de9248 392 BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
807deac2 393 hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
a9de9248 394}
1da177e4 395
a9de9248
MH		 396static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
397{
398 __u8 status = *((__u8 *) skb->data);
399 void *sent;
1da177e4 400
9f1db00c 401 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1da177e4 402
a9de9248
MH		 403 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
404 if (!sent)
405 return;
1da177e4 406
7f9a903c
MH		 407 hci_dev_lock(hdev);
408
409 if (status == 0)
410 memcpy(hdev->dev_class, sent, 3);
411
d7a5a11d 412 if (hci_dev_test_flag(hdev, HCI_MGMT))
7f9a903c
MH		 413 mgmt_set_class_of_dev_complete(hdev, sent, status);
414
415 hci_dev_unlock(hdev);
a9de9248 416}
1da177e4 417
a9de9248
MH		 418static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
419{
420 struct hci_rp_read_voice_setting *rp = (void *) skb->data;
421 __u16 setting;
422
9f1db00c 423 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
a9de9248
MH		 424
425 if (rp->status)
426 return;
427
428 setting = __le16_to_cpu(rp->voice_setting);
429
f383f275 430 if (hdev->voice_setting == setting)
a9de9248
MH		 431 return;
432
433 hdev->voice_setting = setting;
434
9f1db00c 435 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
a9de9248 436
3c54711c 437 if (hdev->notify)
a9de9248 438 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
a9de9248
MH		 439}
440
8fc9ced3
GP		 441static void hci_cc_write_voice_setting(struct hci_dev *hdev,
442 struct sk_buff *skb)
a9de9248
MH		 443{
444 __u8 status = *((__u8 *) skb->data);
f383f275 445 __u16 setting;
a9de9248
MH		 446 void *sent;
447
9f1db00c 448 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1da177e4 449
f383f275
MH		 450 if (status)
451 return;
452
a9de9248
MH		 453 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
454 if (!sent)
455 return;
1da177e4 456
f383f275 457 setting = get_unaligned_le16(sent);
1da177e4 458
f383f275
MH		 459 if (hdev->voice_setting == setting)
460 return;
461
462 hdev->voice_setting = setting;
1da177e4 463
9f1db00c 464 BT_DBG("%s voice setting 0x%4.4x", hdev->name, setting);
1da177e4 465
3c54711c 466 if (hdev->notify)
f383f275 467 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
1da177e4
LT		 468}
469
b4cb9fb2
MH		 470static void hci_cc_read_num_supported_iac(struct hci_dev *hdev,
471 struct sk_buff *skb)
472{
473 struct hci_rp_read_num_supported_iac *rp = (void *) skb->data;
474
475 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
476
477 if (rp->status)
478 return;
479
480 hdev->num_iac = rp->num_iac;
481
482 BT_DBG("%s num iac %d", hdev->name, hdev->num_iac);
483}
484
333140b5
MH		 485static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
486{
487 __u8 status = *((__u8 *) skb->data);
5ed8eb2f 488 struct hci_cp_write_ssp_mode *sent;
333140b5 489
9f1db00c 490 BT_DBG("%s status 0x%2.2x", hdev->name, status);
333140b5 491
333140b5
MH		 492 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
493 if (!sent)
494 return;
495
5c1a4c8f
JK		 496 hci_dev_lock(hdev);
497
5ed8eb2f
JH		 498 if (!status) {
499 if (sent->mode)
cad718ed 500 hdev->features[1][0] |= LMP_HOST_SSP;
5ed8eb2f 501 else
cad718ed 502 hdev->features[1][0] &= ~LMP_HOST_SSP;
5ed8eb2f
JH		 503 }
504
d7a5a11d 505 if (hci_dev_test_flag(hdev, HCI_MGMT))
5ed8eb2f 506 mgmt_ssp_enable_complete(hdev, sent->mode, status);
c0ecddc2 507 else if (!status) {
5ed8eb2f 508 if (sent->mode)
a1536da2 509 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
c0ecddc2 510 else
a358dc11 511 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
c0ecddc2 512 }
5c1a4c8f
JK		 513
514 hci_dev_unlock(hdev);
333140b5
MH		 515}
516
eac83dc6
MH		 517static void hci_cc_write_sc_support(struct hci_dev *hdev, struct sk_buff *skb)
518{
519 u8 status = *((u8 *) skb->data);
520 struct hci_cp_write_sc_support *sent;
521
522 BT_DBG("%s status 0x%2.2x", hdev->name, status);
523
524 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
525 if (!sent)
526 return;
527
5c1a4c8f
JK		 528 hci_dev_lock(hdev);
529
eac83dc6
MH		 530 if (!status) {
531 if (sent->support)
532 hdev->features[1][0] |= LMP_HOST_SC;
533 else
534 hdev->features[1][0] &= ~LMP_HOST_SC;
535 }
536
d7a5a11d 537 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !status) {
eac83dc6 538 if (sent->support)
a1536da2 539 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
eac83dc6 540 else
a358dc11 541 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
eac83dc6 542 }
5c1a4c8f
JK		 543
544 hci_dev_unlock(hdev);
eac83dc6
MH		 545}
546
a9de9248
MH		 547static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
548{
549 struct hci_rp_read_local_version *rp = (void *) skb->data;
1143e5a6 550
9f1db00c 551 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1143e5a6 552
a9de9248 553 if (rp->status)
42c6b129 554 return;
1143e5a6 555
d7a5a11d
MH		 556 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
557 hci_dev_test_flag(hdev, HCI_CONFIG)) {
0d5551f5
MH		 558 hdev->hci_ver = rp->hci_ver;
559 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
560 hdev->lmp_ver = rp->lmp_ver;
561 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
562 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
563 }
d5859e22
JH		 564}
565
8fc9ced3
GP		 566static void hci_cc_read_local_commands(struct hci_dev *hdev,
567 struct sk_buff *skb)
a9de9248
MH		 568{
569 struct hci_rp_read_local_commands *rp = (void *) skb->data;
1da177e4 570
9f1db00c 571 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1da177e4 572
6a070e6e
MH		 573 if (rp->status)
574 return;
575
d7a5a11d
MH		 576 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
577 hci_dev_test_flag(hdev, HCI_CONFIG))
2177bab5 578 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
a9de9248 579}
1da177e4 580
8fc9ced3
GP		 581static void hci_cc_read_local_features(struct hci_dev *hdev,
582 struct sk_buff *skb)
a9de9248
MH		 583{
584 struct hci_rp_read_local_features *rp = (void *) skb->data;
5b7f9909 585
9f1db00c 586 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1da177e4 587
a9de9248
MH		 588 if (rp->status)
589 return;
5b7f9909 590
a9de9248 591 memcpy(hdev->features, rp->features, 8);
5b7f9909 592
a9de9248
MH		 593 /* Adjust default settings according to features
594 * supported by device. */
1da177e4 595
cad718ed 596 if (hdev->features[0][0] & LMP_3SLOT)
a9de9248 597 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
1da177e4 598
cad718ed 599 if (hdev->features[0][0] & LMP_5SLOT)
a9de9248 600 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
1da177e4 601
cad718ed 602 if (hdev->features[0][1] & LMP_HV2) {
a9de9248
MH		 603 hdev->pkt_type |= (HCI_HV2);
604 hdev->esco_type |= (ESCO_HV2);
605 }
1da177e4 606
cad718ed 607 if (hdev->features[0][1] & LMP_HV3) {
a9de9248
MH		 608 hdev->pkt_type |= (HCI_HV3);
609 hdev->esco_type |= (ESCO_HV3);
610 }
1da177e4 611
45db810f 612 if (lmp_esco_capable(hdev))
a9de9248 613 hdev->esco_type |= (ESCO_EV3);
da1f5198 614
cad718ed 615 if (hdev->features[0][4] & LMP_EV4)
a9de9248 616 hdev->esco_type |= (ESCO_EV4);
da1f5198 617
cad718ed 618 if (hdev->features[0][4] & LMP_EV5)
a9de9248 619 hdev->esco_type |= (ESCO_EV5);
1da177e4 620
cad718ed 621 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
efc7688b
MH		 622 hdev->esco_type |= (ESCO_2EV3);
623
cad718ed 624 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
efc7688b
MH		 625 hdev->esco_type |= (ESCO_3EV3);
626
cad718ed 627 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
efc7688b 628 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
a9de9248 629}
1da177e4 630
971e3a4b 631static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
807deac2 632 struct sk_buff *skb)
971e3a4b
AG		 633{
634 struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
635
9f1db00c 636 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
971e3a4b
AG		 637
638 if (rp->status)
42c6b129 639 return;
971e3a4b 640
57af75a8
MH		 641 if (hdev->max_page < rp->max_page)
642 hdev->max_page = rp->max_page;
d2c5d77f 643
cad718ed
JH		 644 if (rp->page < HCI_MAX_PAGES)
645 memcpy(hdev->features[rp->page], rp->features, 8);
971e3a4b
AG		 646}
647
1e89cffb 648static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
807deac2 649 struct sk_buff *skb)
1e89cffb
AE		 650{
651 struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
652
9f1db00c 653 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1e89cffb 654
45296acd
MH		 655 if (rp->status)
656 return;
657
658 hdev->flow_ctl_mode = rp->mode;
1e89cffb
AE		 659}
660
a9de9248
MH		 661static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
662{
663 struct hci_rp_read_buffer_size *rp = (void *) skb->data;
1da177e4 664
9f1db00c 665 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1da177e4 666
a9de9248
MH		 667 if (rp->status)
668 return;
1da177e4 669
a9de9248
MH		 670 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
671 hdev->sco_mtu = rp->sco_mtu;
672 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
673 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
674
675 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
676 hdev->sco_mtu = 64;
677 hdev->sco_pkts = 8;
1da177e4 678 }
a9de9248
MH		 679
680 hdev->acl_cnt = hdev->acl_pkts;
681 hdev->sco_cnt = hdev->sco_pkts;
682
807deac2
GP		 683 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
684 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
a9de9248
MH		 685}
686
687static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
688{
689 struct hci_rp_read_bd_addr *rp = (void *) skb->data;
690
9f1db00c 691 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
a9de9248 692
e30d3f5f
MH		 693 if (rp->status)
694 return;
695
696 if (test_bit(HCI_INIT, &hdev->flags))
a9de9248 697 bacpy(&hdev->bdaddr, &rp->bdaddr);
e30d3f5f 698
d7a5a11d 699 if (hci_dev_test_flag(hdev, HCI_SETUP))
e30d3f5f 700 bacpy(&hdev->setup_addr, &rp->bdaddr);
23bb5763
JH		 701}
702
f332ec66
JH		 703static void hci_cc_read_page_scan_activity(struct hci_dev *hdev,
704 struct sk_buff *skb)
705{
706 struct hci_rp_read_page_scan_activity *rp = (void *) skb->data;
707
708 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
709
45296acd
MH		 710 if (rp->status)
711 return;
712
713 if (test_bit(HCI_INIT, &hdev->flags)) {
f332ec66
JH		 714 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
715 hdev->page_scan_window = __le16_to_cpu(rp->window);
716 }
717}
718
4a3ee763
JH		 719static void hci_cc_write_page_scan_activity(struct hci_dev *hdev,
720 struct sk_buff *skb)
721{
722 u8 status = *((u8 *) skb->data);
723 struct hci_cp_write_page_scan_activity *sent;
724
725 BT_DBG("%s status 0x%2.2x", hdev->name, status);
726
727 if (status)
728 return;
729
730 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
731 if (!sent)
732 return;
733
734 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
735 hdev->page_scan_window = __le16_to_cpu(sent->window);
736}
737
f332ec66
JH		 738static void hci_cc_read_page_scan_type(struct hci_dev *hdev,
739 struct sk_buff *skb)
740{
741 struct hci_rp_read_page_scan_type *rp = (void *) skb->data;
742
743 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
744
45296acd
MH		 745 if (rp->status)
746 return;
747
748 if (test_bit(HCI_INIT, &hdev->flags))
f332ec66
JH		 749 hdev->page_scan_type = rp->type;
750}
751
4a3ee763
JH		 752static void hci_cc_write_page_scan_type(struct hci_dev *hdev,
753 struct sk_buff *skb)
754{
755 u8 status = *((u8 *) skb->data);
756 u8 *type;
757
758 BT_DBG("%s status 0x%2.2x", hdev->name, status);
759
760 if (status)
761 return;
762
763 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
764 if (type)
765 hdev->page_scan_type = *type;
766}
767
350ee4cf 768static void hci_cc_read_data_block_size(struct hci_dev *hdev,
807deac2 769 struct sk_buff *skb)
350ee4cf
AE		 770{
771 struct hci_rp_read_data_block_size *rp = (void *) skb->data;
772
9f1db00c 773 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
350ee4cf
AE		 774
775 if (rp->status)
776 return;
777
778 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
779 hdev->block_len = __le16_to_cpu(rp->block_len);
780 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
781
782 hdev->block_cnt = hdev->num_blocks;
783
784 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
807deac2 785 hdev->block_cnt, hdev->block_len);
350ee4cf
AE		 786}
787
33f35721
JH		 788static void hci_cc_read_clock(struct hci_dev *hdev, struct sk_buff *skb)
789{
790 struct hci_rp_read_clock *rp = (void *) skb->data;
791 struct hci_cp_read_clock *cp;
792 struct hci_conn *conn;
793
794 BT_DBG("%s", hdev->name);
795
796 if (skb->len < sizeof(*rp))
797 return;
798
799 if (rp->status)
800 return;
801
802 hci_dev_lock(hdev);
803
804 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
805 if (!cp)
806 goto unlock;
807
808 if (cp->which == 0x00) {
809 hdev->clock = le32_to_cpu(rp->clock);
810 goto unlock;
811 }
812
813 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
814 if (conn) {
815 conn->clock = le32_to_cpu(rp->clock);
816 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
817 }
818
819unlock:
820 hci_dev_unlock(hdev);
821}
822
928abaa7 823static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
807deac2 824 struct sk_buff *skb)
928abaa7
AE		 825{
826 struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
827
9f1db00c 828 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
928abaa7
AE		 829
830 if (rp->status)
83927882 831 return;
928abaa7
AE		 832
833 hdev->amp_status = rp->amp_status;
834 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
835 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
836 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
837 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
838 hdev->amp_type = rp->amp_type;
839 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
840 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
841 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
842 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
928abaa7
AE		 843}
844
d5859e22 845static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
807deac2 846 struct sk_buff *skb)
d5859e22 847{
91c4e9b1 848 struct hci_rp_read_inq_rsp_tx_power *rp = (void *) skb->data;
d5859e22 849
9f1db00c 850 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
91c4e9b1 851
45296acd
MH		 852 if (rp->status)
853 return;
854
855 hdev->inq_tx_power = rp->tx_power;
d5859e22
JH		 856}
857
980e1a53
JH		 858static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
859{
860 struct hci_rp_pin_code_reply *rp = (void *) skb->data;
861 struct hci_cp_pin_code_reply *cp;
862 struct hci_conn *conn;
863
9f1db00c 864 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
980e1a53 865
56e5cb86
JH		 866 hci_dev_lock(hdev);
867
d7a5a11d 868 if (hci_dev_test_flag(hdev, HCI_MGMT))
744cf19e 869 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
980e1a53 870
fa1bd918 871 if (rp->status)
56e5cb86 872 goto unlock;
980e1a53
JH		 873
874 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
875 if (!cp)
56e5cb86 876 goto unlock;
980e1a53
JH		 877
878 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
879 if (conn)
880 conn->pin_length = cp->pin_len;
56e5cb86
JH		 881
882unlock:
883 hci_dev_unlock(hdev);
980e1a53
JH		 884}
885
886static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
887{
888 struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
889
9f1db00c 890 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
980e1a53 891
56e5cb86
JH		 892 hci_dev_lock(hdev);
893
d7a5a11d 894 if (hci_dev_test_flag(hdev, HCI_MGMT))
744cf19e 895 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
807deac2 896 rp->status);
56e5cb86
JH		 897
898 hci_dev_unlock(hdev);
980e1a53 899}
56e5cb86 900
6ed58ec5
VT		 901static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
902 struct sk_buff *skb)
903{
904 struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
905
9f1db00c 906 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
6ed58ec5
VT		 907
908 if (rp->status)
909 return;
910
911 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
912 hdev->le_pkts = rp->le_max_pkt;
913
914 hdev->le_cnt = hdev->le_pkts;
915
916 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
6ed58ec5 917}
980e1a53 918
60e77321
JH		 919static void hci_cc_le_read_local_features(struct hci_dev *hdev,
920 struct sk_buff *skb)
921{
922 struct hci_rp_le_read_local_features *rp = (void *) skb->data;
923
924 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
925
45296acd
MH		 926 if (rp->status)
927 return;
928
929 memcpy(hdev->le_features, rp->features, 8);
60e77321
JH		 930}
931
8fa19098
JH		 932static void hci_cc_le_read_adv_tx_power(struct hci_dev *hdev,
933 struct sk_buff *skb)
934{
935 struct hci_rp_le_read_adv_tx_power *rp = (void *) skb->data;
936
937 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
938
45296acd
MH		 939 if (rp->status)
940 return;
941
942 hdev->adv_tx_power = rp->tx_power;
8fa19098
JH		 943}
944
a5c29683
JH		 945static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
946{
947 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
948
9f1db00c 949 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
a5c29683 950
56e5cb86
JH		 951 hci_dev_lock(hdev);
952
d7a5a11d 953 if (hci_dev_test_flag(hdev, HCI_MGMT))
04124681
GP		 954 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
955 rp->status);
56e5cb86
JH		 956
957 hci_dev_unlock(hdev);
a5c29683
JH		 958}
959
960static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
807deac2 961 struct sk_buff *skb)
a5c29683
JH		 962{
963 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
964
9f1db00c 965 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
a5c29683 966
56e5cb86
JH		 967 hci_dev_lock(hdev);
968
d7a5a11d 969 if (hci_dev_test_flag(hdev, HCI_MGMT))
744cf19e 970 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
04124681 971 ACL_LINK, 0, rp->status);
56e5cb86
JH		 972
973 hci_dev_unlock(hdev);
a5c29683
JH		 974}
975
1143d458
BG		 976static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
977{
978 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
979
9f1db00c 980 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1143d458
BG		 981
982 hci_dev_lock(hdev);
983
d7a5a11d 984 if (hci_dev_test_flag(hdev, HCI_MGMT))
272d90df 985 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
04124681 986 0, rp->status);
1143d458
BG		 987
988 hci_dev_unlock(hdev);
989}
990
991static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
807deac2 992 struct sk_buff *skb)
1143d458
BG		 993{
994 struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
995
9f1db00c 996 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1143d458
BG		 997
998 hci_dev_lock(hdev);
999
d7a5a11d 1000 if (hci_dev_test_flag(hdev, HCI_MGMT))
1143d458 1001 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
04124681 1002 ACL_LINK, 0, rp->status);
1143d458
BG		 1003
1004 hci_dev_unlock(hdev);
1005}
1006
4d2d2796
MH		 1007static void hci_cc_read_local_oob_data(struct hci_dev *hdev,
1008 struct sk_buff *skb)
c35938b2
SJ		 1009{
1010 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
1011
9f1db00c 1012 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
4d2d2796
MH		 1013}
1014
1015static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
1016 struct sk_buff *skb)
1017{
1018 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
1019
1020 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
c35938b2
SJ		 1021}
1022
7a4cd51d
MH		 1023static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb)
1024{
1025 __u8 status = *((__u8 *) skb->data);
1026 bdaddr_t *sent;
1027
1028 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1029
45296acd
MH		 1030 if (status)
1031 return;
1032
7a4cd51d
MH		 1033 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1034 if (!sent)
1035 return;
1036
1037 hci_dev_lock(hdev);
1038
45296acd 1039 bacpy(&hdev->random_addr, sent);
7a4cd51d
MH		 1040
1041 hci_dev_unlock(hdev);
1042}
1043
c1d5dc4a
JH		 1044static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
1045{
1046 __u8 *sent, status = *((__u8 *) skb->data);
1047
1048 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1049
45296acd 1050 if (status)
c1d5dc4a
JH		 1051 return;
1052
45296acd
MH		 1053 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1054 if (!sent)
3c857757
JH		 1055 return;
1056
c1d5dc4a
JH		 1057 hci_dev_lock(hdev);
1058
49c922bb 1059 /* If we're doing connection initiation as peripheral. Set a
3c857757
JH		 1060 * timeout in case something goes wrong.
1061 */
1062 if (*sent) {
1063 struct hci_conn *conn;
1064
a1536da2 1065 hci_dev_set_flag(hdev, HCI_LE_ADV);
66c417c1 1066
e7d9ab73 1067 conn = hci_lookup_le_connect(hdev);
3c857757
JH		 1068 if (conn)
1069 queue_delayed_work(hdev->workqueue,
1070 &conn->le_conn_timeout,
09ae260b 1071 conn->conn_timeout);
66c417c1 1072 } else {
a358dc11 1073 hci_dev_clear_flag(hdev, HCI_LE_ADV);
3c857757
JH		 1074 }
1075
04b4edcb 1076 hci_dev_unlock(hdev);
c1d5dc4a
JH		 1077}
1078
533553f8
MH		 1079static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
1080{
1081 struct hci_cp_le_set_scan_param *cp;
1082 __u8 status = *((__u8 *) skb->data);
1083
1084 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1085
45296acd
MH		 1086 if (status)
1087 return;
1088
533553f8
MH		 1089 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1090 if (!cp)
1091 return;
1092
1093 hci_dev_lock(hdev);
1094
45296acd 1095 hdev->le_scan_type = cp->type;
533553f8
MH		 1096
1097 hci_dev_unlock(hdev);
1098}
1099
b9a6328f
JH		 1100static bool has_pending_adv_report(struct hci_dev *hdev)
1101{
1102 struct discovery_state *d = &hdev->discovery;
1103
1104 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1105}
1106
1107static void clear_pending_adv_report(struct hci_dev *hdev)
1108{
1109 struct discovery_state *d = &hdev->discovery;
1110
1111 bacpy(&d->last_adv_addr, BDADDR_ANY);
1112 d->last_adv_data_len = 0;
1113}
1114
1115static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
c70a7e4c
MH		 1116 u8 bdaddr_type, s8 rssi, u32 flags,
1117 u8 *data, u8 len)
b9a6328f
JH		 1118{
1119 struct discovery_state *d = &hdev->discovery;
1120
1121 bacpy(&d->last_adv_addr, bdaddr);
1122 d->last_adv_addr_type = bdaddr_type;
ff5cd29f 1123 d->last_adv_rssi = rssi;
c70a7e4c 1124 d->last_adv_flags = flags;
b9a6328f
JH		 1125 memcpy(d->last_adv_data, data, len);
1126 d->last_adv_data_len = len;
1127}
1128
eb9d91f5 1129static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
807deac2 1130 struct sk_buff *skb)
eb9d91f5
AG		 1131{
1132 struct hci_cp_le_set_scan_enable *cp;
1133 __u8 status = *((__u8 *) skb->data);
1134
9f1db00c 1135 BT_DBG("%s status 0x%2.2x", hdev->name, status);
eb9d91f5 1136
45296acd 1137 if (status)
eb9d91f5
AG		 1138 return;
1139
45296acd
MH		 1140 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1141 if (!cp)
3fd319b8
AG		 1142 return;
1143
5c1a4c8f
JK		 1144 hci_dev_lock(hdev);
1145
68a8aea4 1146 switch (cp->enable) {
76a388be 1147 case LE_SCAN_ENABLE:
a1536da2 1148 hci_dev_set_flag(hdev, HCI_LE_SCAN);
b9a6328f
JH		 1149 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1150 clear_pending_adv_report(hdev);
68a8aea4
AE		 1151 break;
1152
76a388be 1153 case LE_SCAN_DISABLE:
b9a6328f
JH		 1154 /* We do this here instead of when setting DISCOVERY_STOPPED
1155 * since the latter would potentially require waiting for
1156 * inquiry to stop too.
1157 */
1158 if (has_pending_adv_report(hdev)) {
1159 struct discovery_state *d = &hdev->discovery;
1160
1161 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
ab0aa433 1162 d->last_adv_addr_type, NULL,
c70a7e4c 1163 d->last_adv_rssi, d->last_adv_flags,
ab0aa433 1164 d->last_adv_data,
b9a6328f
JH		 1165 d->last_adv_data_len, NULL, 0);
1166 }
1167
317ac8cb
JH		 1168 /* Cancel this timer so that we don't try to disable scanning
1169 * when it's already disabled.
1170 */
1171 cancel_delayed_work(&hdev->le_scan_disable);
1172
a358dc11 1173 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
e8bb6b97 1174
81ad6fd9
JH		 1175 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1176 * interrupted scanning due to a connect request. Mark
e8bb6b97
JH		 1177 * therefore discovery as stopped. If this was not
1178 * because of a connect request advertising might have
1179 * been disabled because of active scanning, so
1180 * re-enable it again if necessary.
81ad6fd9 1181 */
a69d8927 1182 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
81ad6fd9 1183 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
d7a5a11d 1184 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
34722277 1185 hdev->discovery.state == DISCOVERY_FINDING)
f2252570 1186 hci_req_reenable_advertising(hdev);
e8bb6b97 1187
68a8aea4
AE		 1188 break;
1189
1190 default:
2064ee33
MH		 1191 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
1192 cp->enable);
68a8aea4 1193 break;
35815085 1194 }
5c1a4c8f
JK		 1195
1196 hci_dev_unlock(hdev);
eb9d91f5
AG		 1197}
1198
cf1d081f
JH		 1199static void hci_cc_le_read_white_list_size(struct hci_dev *hdev,
1200 struct sk_buff *skb)
1201{
1202 struct hci_rp_le_read_white_list_size *rp = (void *) skb->data;
1203
1204 BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
1205
45296acd
MH		 1206 if (rp->status)
1207 return;
1208
1209 hdev->le_white_list_size = rp->size;
cf1d081f
JH		 1210}
1211
0f36b589
MH		 1212static void hci_cc_le_clear_white_list(struct hci_dev *hdev,
1213 struct sk_buff *skb)
1214{
1215 __u8 status = *((__u8 *) skb->data);
1216
1217 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1218
45296acd
MH		 1219 if (status)
1220 return;
1221
dcc36c16 1222 hci_bdaddr_list_clear(&hdev->le_white_list);
0f36b589
MH		 1223}
1224
1225static void hci_cc_le_add_to_white_list(struct hci_dev *hdev,
1226 struct sk_buff *skb)
1227{
1228 struct hci_cp_le_add_to_white_list *sent;
1229 __u8 status = *((__u8 *) skb->data);
1230
1231 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1232
45296acd
MH		 1233 if (status)
1234 return;
1235
0f36b589
MH		 1236 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST);
1237 if (!sent)
1238 return;
1239
dcc36c16
JH		 1240 hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr,
1241 sent->bdaddr_type);
0f36b589
MH		 1242}
1243
1244static void hci_cc_le_del_from_white_list(struct hci_dev *hdev,
1245 struct sk_buff *skb)
1246{
1247 struct hci_cp_le_del_from_white_list *sent;
1248 __u8 status = *((__u8 *) skb->data);
1249
1250 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1251
45296acd
MH		 1252 if (status)
1253 return;
1254
0f36b589
MH		 1255 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST);
1256 if (!sent)
1257 return;
1258
dcc36c16
JH		 1259 hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr,
1260 sent->bdaddr_type);
0f36b589
MH		 1261}
1262
9b008c04
JH		 1263static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
1264 struct sk_buff *skb)
1265{
1266 struct hci_rp_le_read_supported_states *rp = (void *) skb->data;
1267
1268 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1269
45296acd
MH		 1270 if (rp->status)
1271 return;
1272
1273 memcpy(hdev->le_states, rp->le_states, 8);
9b008c04
JH		 1274}
1275
a8e1bfaa
MH		 1276static void hci_cc_le_read_def_data_len(struct hci_dev *hdev,
1277 struct sk_buff *skb)
1278{
1279 struct hci_rp_le_read_def_data_len *rp = (void *) skb->data;
1280
1281 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1282
1283 if (rp->status)
1284 return;
1285
1286 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1287 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1288}
1289
1290static void hci_cc_le_write_def_data_len(struct hci_dev *hdev,
1291 struct sk_buff *skb)
1292{
1293 struct hci_cp_le_write_def_data_len *sent;
1294 __u8 status = *((__u8 *) skb->data);
1295
1296 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1297
1298 if (status)
1299 return;
1300
1301 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1302 if (!sent)
1303 return;
1304
1305 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
1306 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
1307}
1308
1309static void hci_cc_le_read_max_data_len(struct hci_dev *hdev,
1310 struct sk_buff *skb)
1311{
1312 struct hci_rp_le_read_max_data_len *rp = (void *) skb->data;
1313
1314 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1315
1316 if (rp->status)
1317 return;
1318
1319 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
1320 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
1321 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
1322 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
1323}
1324
6039aa73
GP		 1325static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
1326 struct sk_buff *skb)
f9b49306 1327{
06199cf8 1328 struct hci_cp_write_le_host_supported *sent;
f9b49306
AG		 1329 __u8 status = *((__u8 *) skb->data);
1330
9f1db00c 1331 BT_DBG("%s status 0x%2.2x", hdev->name, status);
f9b49306 1332
45296acd
MH		 1333 if (status)
1334 return;
1335
06199cf8 1336 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
8f984dfa 1337 if (!sent)
f9b49306
AG		 1338 return;
1339
5c1a4c8f
JK		 1340 hci_dev_lock(hdev);
1341
45296acd
MH		 1342 if (sent->le) {
1343 hdev->features[1][0] |= LMP_HOST_LE;
a1536da2 1344 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
45296acd
MH		 1345 } else {
1346 hdev->features[1][0] &= ~LMP_HOST_LE;
a358dc11
MH		 1347 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
1348 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
8f984dfa 1349 }
45296acd
MH		 1350
1351 if (sent->simul)
1352 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
1353 else
1354 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
5c1a4c8f
JK		 1355
1356 hci_dev_unlock(hdev);
f9b49306
AG		 1357}
1358
56ed2cb8
JH		 1359static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
1360{
1361 struct hci_cp_le_set_adv_param *cp;
1362 u8 status = *((u8 *) skb->data);
1363
1364 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1365
1366 if (status)
1367 return;
1368
1369 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
1370 if (!cp)
1371 return;
1372
1373 hci_dev_lock(hdev);
1374 hdev->adv_addr_type = cp->own_address_type;
1375 hci_dev_unlock(hdev);
1376}
1377
5ae76a94
AK		 1378static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
1379{
1380 struct hci_rp_read_rssi *rp = (void *) skb->data;
1381 struct hci_conn *conn;
1382
1383 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1384
1385 if (rp->status)
1386 return;
1387
1388 hci_dev_lock(hdev);
1389
1390 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1391 if (conn)
1392 conn->rssi = rp->rssi;
1393
1394 hci_dev_unlock(hdev);
1395}
1396
5a134fae
AK		 1397static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb)
1398{
1399 struct hci_cp_read_tx_power *sent;
1400 struct hci_rp_read_tx_power *rp = (void *) skb->data;
1401 struct hci_conn *conn;
1402
1403 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1404
1405 if (rp->status)
1406 return;
1407
1408 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
1409 if (!sent)
1410 return;
1411
1412 hci_dev_lock(hdev);
1413
1414 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
d0455ed9
AK		 1415 if (!conn)
1416 goto unlock;
1417
1418 switch (sent->type) {
1419 case 0x00:
5a134fae 1420 conn->tx_power = rp->tx_power;
d0455ed9
AK		 1421 break;
1422 case 0x01:
1423 conn->max_tx_power = rp->tx_power;
1424 break;
1425 }
5a134fae 1426
d0455ed9 1427unlock:
5a134fae
AK		 1428 hci_dev_unlock(hdev);
1429}
1430
c50b33c8
MH		 1431static void hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, struct sk_buff *skb)
1432{
1433 u8 status = *((u8 *) skb->data);
1434 u8 *mode;
1435
1436 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1437
1438 if (status)
1439 return;
1440
1441 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
1442 if (mode)
1443 hdev->ssp_debug_mode = *mode;
1444}
1445
6039aa73 1446static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
a9de9248 1447{
9f1db00c 1448 BT_DBG("%s status 0x%2.2x", hdev->name, status);
a9de9248
MH		 1449
1450 if (status) {
a9de9248 1451 hci_conn_check_pending(hdev);
314b2381
JH		 1452 return;
1453 }
1454
89352e7d 1455 set_bit(HCI_INQUIRY, &hdev->flags);
1da177e4
LT		 1456}
1457
6039aa73 1458static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
1da177e4 1459{
a9de9248 1460 struct hci_cp_create_conn *cp;
1da177e4 1461 struct hci_conn *conn;
1da177e4 1462
9f1db00c 1463 BT_DBG("%s status 0x%2.2x", hdev->name, status);
a9de9248
MH		 1464
1465 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
1da177e4
LT		 1466 if (!cp)
1467 return;
1468
1469 hci_dev_lock(hdev);
1470
1471 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1472
6ed93dc6 1473 BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn);
1da177e4
LT		 1474
1475 if (status) {
1476 if (conn && conn->state == BT_CONNECT) {
4c67bc74
MH		 1477 if (status != 0x0c || conn->attempt > 2) {
1478 conn->state = BT_CLOSED;
539c496d 1479 hci_connect_cfm(conn, status);
4c67bc74
MH		 1480 hci_conn_del(conn);
1481 } else
1482 conn->state = BT_CONNECT2;
1da177e4
LT		 1483 }
1484 } else {
1485 if (!conn) {
a5c4e309
JH		 1486 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
1487 HCI_ROLE_MASTER);
1488 if (!conn)
2064ee33 1489 bt_dev_err(hdev, "no memory for new connection");
1da177e4
LT		 1490 }
1491 }
1492
1493 hci_dev_unlock(hdev);
1494}
1495
a9de9248 1496static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1da177e4 1497{
a9de9248
MH		 1498 struct hci_cp_add_sco *cp;
1499 struct hci_conn *acl, *sco;
1500 __u16 handle;
1da177e4 1501
9f1db00c 1502 BT_DBG("%s status 0x%2.2x", hdev->name, status);
b6a0dc82 1503
a9de9248
MH		 1504 if (!status)
1505 return;
1da177e4 1506
a9de9248
MH		 1507 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
1508 if (!cp)
1509 return;
1da177e4 1510
a9de9248 1511 handle = __le16_to_cpu(cp->handle);
1da177e4 1512
9f1db00c 1513 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
1da177e4 1514
a9de9248 1515 hci_dev_lock(hdev);
1da177e4 1516
a9de9248 1517 acl = hci_conn_hash_lookup_handle(hdev, handle);
5a08ecce
AE		 1518 if (acl) {
1519 sco = acl->link;
1520 if (sco) {
1521 sco->state = BT_CLOSED;
1da177e4 1522
539c496d 1523 hci_connect_cfm(sco, status);
5a08ecce
AE		 1524 hci_conn_del(sco);
1525 }
a9de9248 1526 }
1da177e4 1527
a9de9248
MH		 1528 hci_dev_unlock(hdev);
1529}
1da177e4 1530
f8558555
MH		 1531static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
1532{
1533 struct hci_cp_auth_requested *cp;
1534 struct hci_conn *conn;
1535
9f1db00c 1536 BT_DBG("%s status 0x%2.2x", hdev->name, status);
f8558555
MH		 1537
1538 if (!status)
1539 return;
1540
1541 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
1542 if (!cp)
1543 return;
1544
1545 hci_dev_lock(hdev);
1546
1547 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1548 if (conn) {
1549 if (conn->state == BT_CONFIG) {
539c496d 1550 hci_connect_cfm(conn, status);
76a68ba0 1551 hci_conn_drop(conn);
f8558555
MH		 1552 }
1553 }
1554
1555 hci_dev_unlock(hdev);
1556}
1557
1558static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
1559{
1560 struct hci_cp_set_conn_encrypt *cp;
1561 struct hci_conn *conn;
1562
9f1db00c 1563 BT_DBG("%s status 0x%2.2x", hdev->name, status);
f8558555
MH		 1564
1565 if (!status)
1566 return;
1567
1568 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
1569 if (!cp)
1570 return;
1571
1572 hci_dev_lock(hdev);
1573
1574 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1575 if (conn) {
1576 if (conn->state == BT_CONFIG) {
539c496d 1577 hci_connect_cfm(conn, status);
76a68ba0 1578 hci_conn_drop(conn);
f8558555
MH		 1579 }
1580 }
1581
1582 hci_dev_unlock(hdev);
1583}
1584
127178d2 1585static int hci_outgoing_auth_needed(struct hci_dev *hdev,
807deac2 1586 struct hci_conn *conn)
392599b9 1587{
392599b9
JH		 1588 if (conn->state != BT_CONFIG || !conn->out)
1589 return 0;
1590
765c2a96 1591 if (conn->pending_sec_level == BT_SECURITY_SDP)
392599b9
JH		 1592 return 0;
1593
1594 /* Only request authentication for SSP connections or non-SSP
264b8b4e
JH		 1595 * devices with sec_level MEDIUM or HIGH or if MITM protection
1596 * is requested.
1597 */
807deac2 1598 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
7e3691e1 1599 conn->pending_sec_level != BT_SECURITY_FIPS &&
264b8b4e
JH		 1600 conn->pending_sec_level != BT_SECURITY_HIGH &&
1601 conn->pending_sec_level != BT_SECURITY_MEDIUM)
392599b9
JH		 1602 return 0;
1603
392599b9
JH		 1604 return 1;
1605}
1606
6039aa73 1607static int hci_resolve_name(struct hci_dev *hdev,
04124681 1608 struct inquiry_entry *e)
30dc78e1
JH		 1609{
1610 struct hci_cp_remote_name_req cp;
1611
1612 memset(&cp, 0, sizeof(cp));
1613
1614 bacpy(&cp.bdaddr, &e->data.bdaddr);
1615 cp.pscan_rep_mode = e->data.pscan_rep_mode;
1616 cp.pscan_mode = e->data.pscan_mode;
1617 cp.clock_offset = e->data.clock_offset;
1618
1619 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
1620}
1621
b644ba33 1622static bool hci_resolve_next_name(struct hci_dev *hdev)
30dc78e1
JH		 1623{
1624 struct discovery_state *discov = &hdev->discovery;
1625 struct inquiry_entry *e;
1626
b644ba33
JH		 1627 if (list_empty(&discov->resolve))
1628 return false;
1629
1630 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
c810089c
RM		 1631 if (!e)
1632 return false;
1633
b644ba33
JH		 1634 if (hci_resolve_name(hdev, e) == 0) {
1635 e->name_state = NAME_PENDING;
1636 return true;
1637 }
1638
1639 return false;
1640}
1641
1642static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
04124681 1643 bdaddr_t *bdaddr, u8 *name, u8 name_len)
b644ba33
JH		 1644{
1645 struct discovery_state *discov = &hdev->discovery;
1646 struct inquiry_entry *e;
1647
60cb49d2
JH		 1648 /* Update the mgmt connected state if necessary. Be careful with
1649 * conn objects that exist but are not (yet) connected however.
1650 * Only those in BT_CONFIG or BT_CONNECTED states can be
1651 * considered connected.
1652 */
1653 if (conn &&
1654 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
cb77c3ec 1655 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
48ec92fa 1656 mgmt_device_connected(hdev, conn, 0, name, name_len);
b644ba33
JH		 1657
1658 if (discov->state == DISCOVERY_STOPPED)
1659 return;
1660
30dc78e1
JH		 1661 if (discov->state == DISCOVERY_STOPPING)
1662 goto discov_complete;
1663
1664 if (discov->state != DISCOVERY_RESOLVING)
1665 return;
1666
1667 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
7cc8380e
RM		 1668 /* If the device was not found in a list of found devices names of which
1669 * are pending. there is no need to continue resolving a next name as it
1670 * will be done upon receiving another Remote Name Request Complete
1671 * Event */
1672 if (!e)
1673 return;
1674
1675 list_del(&e->list);
1676 if (name) {
30dc78e1 1677 e->name_state = NAME_KNOWN;
7cc8380e
RM		 1678 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
1679 e->data.rssi, name, name_len);
c3e7c0d9
RM		 1680 } else {
1681 e->name_state = NAME_NOT_KNOWN;
30dc78e1
JH		 1682 }
1683
b644ba33 1684 if (hci_resolve_next_name(hdev))
30dc78e1 1685 return;
30dc78e1
JH		 1686
1687discov_complete:
1688 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1689}
1690
a9de9248
MH		 1691static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
1692{
127178d2
JH		 1693 struct hci_cp_remote_name_req *cp;
1694 struct hci_conn *conn;
1695
9f1db00c 1696 BT_DBG("%s status 0x%2.2x", hdev->name, status);
127178d2
JH		 1697
1698 /* If successful wait for the name req complete event before
1699 * checking for the need to do authentication */
1700 if (!status)
1701 return;
1702
1703 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
1704 if (!cp)
1705 return;
1706
1707 hci_dev_lock(hdev);
1708
b644ba33
JH		 1709 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1710
d7a5a11d 1711 if (hci_dev_test_flag(hdev, HCI_MGMT))
b644ba33 1712 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
30dc78e1 1713
79c6c70c
JH		 1714 if (!conn)
1715 goto unlock;
1716
1717 if (!hci_outgoing_auth_needed(hdev, conn))
1718 goto unlock;
1719
51a8efd7 1720 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
c1f23a2b
JB		 1721 struct hci_cp_auth_requested auth_cp;
1722
977f8fce
JH		 1723 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
1724
c1f23a2b
JB		 1725 auth_cp.handle = __cpu_to_le16(conn->handle);
1726 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
1727 sizeof(auth_cp), &auth_cp);
127178d2
JH		 1728 }
1729
79c6c70c 1730unlock:
127178d2 1731 hci_dev_unlock(hdev);
a9de9248 1732}
1da177e4 1733
769be974
MH		 1734static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
1735{
1736 struct hci_cp_read_remote_features *cp;
1737 struct hci_conn *conn;
1738
9f1db00c 1739 BT_DBG("%s status 0x%2.2x", hdev->name, status);
769be974
MH		 1740
1741 if (!status)
1742 return;
1743
1744 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
1745 if (!cp)
1746 return;
1747
1748 hci_dev_lock(hdev);
1749
1750 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1751 if (conn) {
1752 if (conn->state == BT_CONFIG) {
539c496d 1753 hci_connect_cfm(conn, status);
76a68ba0 1754 hci_conn_drop(conn);
769be974
MH		 1755 }
1756 }
1757
1758 hci_dev_unlock(hdev);
1759}
1760
1761static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
1762{
1763 struct hci_cp_read_remote_ext_features *cp;
1764 struct hci_conn *conn;
1765
9f1db00c 1766 BT_DBG("%s status 0x%2.2x", hdev->name, status);
769be974
MH		 1767
1768 if (!status)
1769 return;
1770
1771 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
1772 if (!cp)
1773 return;
1774
1775 hci_dev_lock(hdev);
1776
1777 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1778 if (conn) {
1779 if (conn->state == BT_CONFIG) {
539c496d 1780 hci_connect_cfm(conn, status);
76a68ba0 1781 hci_conn_drop(conn);
769be974
MH		 1782 }
1783 }
1784
1785 hci_dev_unlock(hdev);
1786}
1787
a9de9248
MH		 1788static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
1789{
b6a0dc82
MH		 1790 struct hci_cp_setup_sync_conn *cp;
1791 struct hci_conn *acl, *sco;
1792 __u16 handle;
1793
9f1db00c 1794 BT_DBG("%s status 0x%2.2x", hdev->name, status);
b6a0dc82
MH		 1795
1796 if (!status)
1797 return;
1798
1799 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
1800 if (!cp)
1801 return;
1802
1803 handle = __le16_to_cpu(cp->handle);
1804
9f1db00c 1805 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
b6a0dc82
MH		 1806
1807 hci_dev_lock(hdev);
1808
1809 acl = hci_conn_hash_lookup_handle(hdev, handle);
5a08ecce
AE		 1810 if (acl) {
1811 sco = acl->link;
1812 if (sco) {
1813 sco->state = BT_CLOSED;
b6a0dc82 1814
539c496d 1815 hci_connect_cfm(sco, status);
5a08ecce
AE		 1816 hci_conn_del(sco);
1817 }
b6a0dc82
MH		 1818 }
1819
1820 hci_dev_unlock(hdev);
1da177e4
LT		 1821}
1822
a9de9248 1823static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
1da177e4 1824{
a9de9248
MH		 1825 struct hci_cp_sniff_mode *cp;
1826 struct hci_conn *conn;
1da177e4 1827
9f1db00c 1828 BT_DBG("%s status 0x%2.2x", hdev->name, status);
04837f64 1829
a9de9248
MH		 1830 if (!status)
1831 return;
04837f64 1832
a9de9248
MH		 1833 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
1834 if (!cp)
1835 return;
04837f64 1836
a9de9248 1837 hci_dev_lock(hdev);
04837f64 1838
a9de9248 1839 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
e73439d8 1840 if (conn) {
51a8efd7 1841 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
04837f64 1842
51a8efd7 1843 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
e73439d8
MH		 1844 hci_sco_setup(conn, status);
1845 }
1846
a9de9248
MH		 1847 hci_dev_unlock(hdev);
1848}
04837f64 1849
a9de9248
MH		 1850static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
1851{
1852 struct hci_cp_exit_sniff_mode *cp;
1853 struct hci_conn *conn;
04837f64 1854
9f1db00c 1855 BT_DBG("%s status 0x%2.2x", hdev->name, status);
04837f64 1856
a9de9248
MH		 1857 if (!status)
1858 return;
04837f64 1859
a9de9248
MH		 1860 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
1861 if (!cp)
1862 return;
04837f64 1863
a9de9248 1864 hci_dev_lock(hdev);
1da177e4 1865
a9de9248 1866 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
e73439d8 1867 if (conn) {
51a8efd7 1868 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1da177e4 1869
51a8efd7 1870 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
e73439d8
MH		 1871 hci_sco_setup(conn, status);
1872 }
1873
a9de9248 1874 hci_dev_unlock(hdev);
1da177e4
LT		 1875}
1876
88c3df13
JH		 1877static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
1878{
1879 struct hci_cp_disconnect *cp;
1880 struct hci_conn *conn;
1881
1882 if (!status)
1883 return;
1884
1885 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
1886 if (!cp)
1887 return;
1888
1889 hci_dev_lock(hdev);
1890
1891 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1892 if (conn)
1893 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
04124681 1894 conn->dst_type, status);
88c3df13
JH		 1895
1896 hci_dev_unlock(hdev);
1897}
1898
cb1d68f7
JH		 1899static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
1900{
1901 struct hci_cp_le_create_conn *cp;
1902 struct hci_conn *conn;
1903
1904 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1905
1906 /* All connection failure handling is taken care of by the
1907 * hci_le_conn_failed function which is triggered by the HCI
1908 * request completion callbacks used for connecting.
1909 */
1910 if (status)
1911 return;
1912
1913 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
1914 if (!cp)
1915 return;
1916
1917 hci_dev_lock(hdev);
1918
9d4c1cc1
JH		 1919 conn = hci_conn_hash_lookup_le(hdev, &cp->peer_addr,
1920 cp->peer_addr_type);
cb1d68f7
JH		 1921 if (!conn)
1922 goto unlock;
1923
1924 /* Store the initiator and responder address information which
1925 * is needed for SMP. These values will not change during the
1926 * lifetime of the connection.
1927 */
1928 conn->init_addr_type = cp->own_address_type;
1929 if (cp->own_address_type == ADDR_LE_DEV_RANDOM)
1930 bacpy(&conn->init_addr, &hdev->random_addr);
1931 else
1932 bacpy(&conn->init_addr, &hdev->bdaddr);
1933
1934 conn->resp_addr_type = cp->peer_addr_type;
1935 bacpy(&conn->resp_addr, &cp->peer_addr);
1936
9489eca4
JH		 1937 /* We don't want the connection attempt to stick around
1938 * indefinitely since LE doesn't have a page timeout concept
1939 * like BR/EDR. Set a timer for any connection that doesn't use
1940 * the white list for connecting.
1941 */
1942 if (cp->filter_policy == HCI_LE_USE_PEER_ADDR)
1943 queue_delayed_work(conn->hdev->workqueue,
1944 &conn->le_conn_timeout,
09ae260b 1945 conn->conn_timeout);
9489eca4 1946
cb1d68f7
JH		 1947unlock:
1948 hci_dev_unlock(hdev);
1949}
1950
0fe29fd1
MH		 1951static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
1952{
1953 struct hci_cp_le_read_remote_features *cp;
1954 struct hci_conn *conn;
1955
1956 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1957
1958 if (!status)
1959 return;
1960
1961 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
1962 if (!cp)
1963 return;
1964
1965 hci_dev_lock(hdev);
1966
1967 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1968 if (conn) {
1969 if (conn->state == BT_CONFIG) {
1970 hci_connect_cfm(conn, status);
1971 hci_conn_drop(conn);
1972 }
1973 }
1974
1975 hci_dev_unlock(hdev);
1976}
1977
81d0c8ad
JH		 1978static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
1979{
1980 struct hci_cp_le_start_enc *cp;
1981 struct hci_conn *conn;
1982
1983 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1984
1985 if (!status)
1986 return;
1987
1988 hci_dev_lock(hdev);
1989
1990 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
1991 if (!cp)
1992 goto unlock;
1993
1994 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1995 if (!conn)
1996 goto unlock;
1997
1998 if (conn->state != BT_CONNECTED)
1999 goto unlock;
2000
2001 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2002 hci_conn_drop(conn);
2003
2004unlock:
2005 hci_dev_unlock(hdev);
2006}
2007
50fc85f1
KP		 2008static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
2009{
2010 struct hci_cp_switch_role *cp;
2011 struct hci_conn *conn;
2012
2013 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2014
2015 if (!status)
2016 return;
2017
2018 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
2019 if (!cp)
2020 return;
2021
2022 hci_dev_lock(hdev);
2023
2024 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2025 if (conn)
2026 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
2027
2028 hci_dev_unlock(hdev);
2029}
2030
6039aa73 2031static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4
LT		 2032{
2033 __u8 status = *((__u8 *) skb->data);
30dc78e1
JH		 2034 struct discovery_state *discov = &hdev->discovery;
2035 struct inquiry_entry *e;
1da177e4 2036
9f1db00c 2037 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1da177e4 2038
a9de9248 2039 hci_conn_check_pending(hdev);
89352e7d
AG		 2040
2041 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
2042 return;
2043
4e857c58 2044 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3e13fa1e
AG		 2045 wake_up_bit(&hdev->flags, HCI_INQUIRY);
2046
d7a5a11d 2047 if (!hci_dev_test_flag(hdev, HCI_MGMT))
30dc78e1
JH		 2048 return;
2049
56e5cb86 2050 hci_dev_lock(hdev);
30dc78e1 2051
343f935b 2052 if (discov->state != DISCOVERY_FINDING)
30dc78e1
JH		 2053 goto unlock;
2054
2055 if (list_empty(&discov->resolve)) {
07d2334a
JP		 2056 /* When BR/EDR inquiry is active and no LE scanning is in
2057 * progress, then change discovery state to indicate completion.
2058 *
2059 * When running LE scanning and BR/EDR inquiry simultaneously
2060 * and the LE scan already finished, then change the discovery
2061 * state to indicate completion.
2062 */
2063 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
2064 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
2065 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
30dc78e1
JH		 2066 goto unlock;
2067 }
2068
2069 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2070 if (e && hci_resolve_name(hdev, e) == 0) {
2071 e->name_state = NAME_PENDING;
2072 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
2073 } else {
07d2334a
JP		 2074 /* When BR/EDR inquiry is active and no LE scanning is in
2075 * progress, then change discovery state to indicate completion.
2076 *
2077 * When running LE scanning and BR/EDR inquiry simultaneously
2078 * and the LE scan already finished, then change the discovery
2079 * state to indicate completion.
2080 */
2081 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
2082 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
2083 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
30dc78e1
JH		 2084 }
2085
2086unlock:
56e5cb86 2087 hci_dev_unlock(hdev);
1da177e4
LT		 2088}
2089
6039aa73 2090static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2091{
45bb4bf0 2092 struct inquiry_data data;
a9de9248 2093 struct inquiry_info *info = (void *) (skb->data + 1);
1da177e4
LT		 2094 int num_rsp = *((__u8 *) skb->data);
2095
2096 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
2097
45bb4bf0
MH		 2098 if (!num_rsp)
2099 return;
2100
d7a5a11d 2101 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 2102 return;
2103
1da177e4 2104 hci_dev_lock(hdev);
45bb4bf0 2105
e17acd40 2106 for (; num_rsp; num_rsp--, info++) {
af58925c 2107 u32 flags;
3175405b 2108
1da177e4
LT		 2109 bacpy(&data.bdaddr, &info->bdaddr);
2110 data.pscan_rep_mode = info->pscan_rep_mode;
2111 data.pscan_period_mode = info->pscan_period_mode;
2112 data.pscan_mode = info->pscan_mode;
2113 memcpy(data.dev_class, info->dev_class, 3);
2114 data.clock_offset = info->clock_offset;
efb2513f 2115 data.rssi = HCI_RSSI_INVALID;
41a96212 2116 data.ssp_mode = 0x00;
3175405b 2117
af58925c
MH		 2118 flags = hci_inquiry_cache_update(hdev, &data, false);
2119
48264f06 2120 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
efb2513f
MH		 2121 info->dev_class, HCI_RSSI_INVALID,
2122 flags, NULL, 0, NULL, 0);
1da177e4 2123 }
45bb4bf0 2124
1da177e4
LT		 2125 hci_dev_unlock(hdev);
2126}
2127
6039aa73 2128static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2129{
a9de9248
MH		 2130 struct hci_ev_conn_complete *ev = (void *) skb->data;
2131 struct hci_conn *conn;
1da177e4
LT		 2132
2133 BT_DBG("%s", hdev->name);
2134
2135 hci_dev_lock(hdev);
2136
2137 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
9499237a
MH		 2138 if (!conn) {
2139 if (ev->link_type != SCO_LINK)
2140 goto unlock;
2141
2142 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
2143 if (!conn)
2144 goto unlock;
2145
2146 conn->type = SCO_LINK;
2147 }
1da177e4
LT		 2148
2149 if (!ev->status) {
2150 conn->handle = __le16_to_cpu(ev->handle);
769be974
MH		 2151
2152 if (conn->type == ACL_LINK) {
2153 conn->state = BT_CONFIG;
2154 hci_conn_hold(conn);
a9ea3ed9
SJ		 2155
2156 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
2157 !hci_find_link_key(hdev, &ev->bdaddr))
2158 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
2159 else
2160 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
769be974
MH		 2161 } else
2162 conn->state = BT_CONNECTED;
1da177e4 2163
23b9ceb7 2164 hci_debugfs_create_conn(conn);
7d0db0a3
MH		 2165 hci_conn_add_sysfs(conn);
2166
1da177e4 2167 if (test_bit(HCI_AUTH, &hdev->flags))
4dae2798 2168 set_bit(HCI_CONN_AUTH, &conn->flags);
1da177e4
LT		 2169
2170 if (test_bit(HCI_ENCRYPT, &hdev->flags))
4dae2798 2171 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
1da177e4 2172
04837f64
MH		 2173 /* Get remote features */
2174 if (conn->type == ACL_LINK) {
2175 struct hci_cp_read_remote_features cp;
2176 cp.handle = ev->handle;
769be974 2177 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
04124681 2178 sizeof(cp), &cp);
22f433dc 2179
01b1cb87 2180 hci_req_update_scan(hdev);
04837f64
MH		 2181 }
2182
1da177e4 2183 /* Set packet type for incoming connection */
d095c1eb 2184 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
1da177e4
LT		 2185 struct hci_cp_change_conn_ptype cp;
2186 cp.handle = ev->handle;
a8746417 2187 cp.pkt_type = cpu_to_le16(conn->pkt_type);
04124681
GP		 2188 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
2189 &cp);
1da177e4 2190 }
17d5c04c 2191 } else {
1da177e4 2192 conn->state = BT_CLOSED;
17d5c04c 2193 if (conn->type == ACL_LINK)
64c7b77c 2194 mgmt_connect_failed(hdev, &conn->dst, conn->type,
04124681 2195 conn->dst_type, ev->status);
17d5c04c 2196 }
1da177e4 2197
e73439d8
MH		 2198 if (conn->type == ACL_LINK)
2199 hci_sco_setup(conn, ev->status);
1da177e4 2200
769be974 2201 if (ev->status) {
539c496d 2202 hci_connect_cfm(conn, ev->status);
1da177e4 2203 hci_conn_del(conn);
c89b6e6b 2204 } else if (ev->link_type != ACL_LINK)
539c496d 2205 hci_connect_cfm(conn, ev->status);
1da177e4 2206
a9de9248 2207unlock:
1da177e4 2208 hci_dev_unlock(hdev);
1da177e4 2209
a9de9248 2210 hci_conn_check_pending(hdev);
1da177e4
LT		 2211}
2212
70c46425
JH		 2213static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
2214{
2215 struct hci_cp_reject_conn_req cp;
2216
2217 bacpy(&cp.bdaddr, bdaddr);
2218 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
2219 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
2220}
2221
6039aa73 2222static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2223{
a9de9248
MH		 2224 struct hci_ev_conn_request *ev = (void *) skb->data;
2225 int mask = hdev->link_mode;
70c46425
JH		 2226 struct inquiry_entry *ie;
2227 struct hci_conn *conn;
20714bfe 2228 __u8 flags = 0;
1da177e4 2229
6ed93dc6 2230 BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr,
807deac2 2231 ev->link_type);
1da177e4 2232
20714bfe
FD		 2233 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
2234 &flags);
1da177e4 2235
70c46425
JH		 2236 if (!(mask & HCI_LM_ACCEPT)) {
2237 hci_reject_conn(hdev, &ev->bdaddr);
2238 return;
2239 }
2240
46c4c941
JH		 2241 if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr,
2242 BDADDR_BREDR)) {
2243 hci_reject_conn(hdev, &ev->bdaddr);
2244 return;
2245 }
2246
6a8fc95c
JH		 2247 /* Require HCI_CONNECTABLE or a whitelist entry to accept the
2248 * connection. These features are only touched through mgmt so
2249 * only do the checks if HCI_MGMT is set.
2250 */
d7a5a11d
MH		 2251 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
2252 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
46c4c941
JH		 2253 !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
2254 BDADDR_BREDR)) {
2255 hci_reject_conn(hdev, &ev->bdaddr);
2256 return;
70c46425 2257 }
1da177e4 2258
70c46425 2259 /* Connection accepted */
b6a0dc82 2260
70c46425
JH		 2261 hci_dev_lock(hdev);
2262
2263 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2264 if (ie)
2265 memcpy(ie->data.dev_class, ev->dev_class, 3);
c7bdd502 2266
70c46425
JH		 2267 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
2268 &ev->bdaddr);
2269 if (!conn) {
a5c4e309
JH		 2270 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
2271 HCI_ROLE_SLAVE);
a9de9248 2272 if (!conn) {
2064ee33 2273 bt_dev_err(hdev, "no memory for new connection");
70c46425
JH		 2274 hci_dev_unlock(hdev);
2275 return;
1da177e4 2276 }
70c46425 2277 }
b6a0dc82 2278
70c46425 2279 memcpy(conn->dev_class, ev->dev_class, 3);
b6a0dc82 2280
70c46425 2281 hci_dev_unlock(hdev);
1da177e4 2282
70c46425
JH		 2283 if (ev->link_type == ACL_LINK ||
2284 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
2285 struct hci_cp_accept_conn_req cp;
2286 conn->state = BT_CONNECT;
1da177e4 2287
70c46425 2288 bacpy(&cp.bdaddr, &ev->bdaddr);
b6a0dc82 2289
70c46425
JH		 2290 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
2291 cp.role = 0x00; /* Become master */
2292 else
2293 cp.role = 0x01; /* Remain slave */
b6a0dc82 2294
70c46425
JH		 2295 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
2296 } else if (!(flags & HCI_PROTO_DEFER)) {
2297 struct hci_cp_accept_sync_conn_req cp;
2298 conn->state = BT_CONNECT;
b6a0dc82 2299
70c46425
JH		 2300 bacpy(&cp.bdaddr, &ev->bdaddr);
2301 cp.pkt_type = cpu_to_le16(conn->pkt_type);
b6a0dc82 2302
70c46425
JH		 2303 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
2304 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
2305 cp.max_latency = cpu_to_le16(0xffff);
2306 cp.content_format = cpu_to_le16(hdev->voice_setting);
2307 cp.retrans_effort = 0xff;
1da177e4 2308
70c46425
JH		 2309 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
2310 &cp);
a9de9248 2311 } else {
70c46425 2312 conn->state = BT_CONNECT2;
539c496d 2313 hci_connect_cfm(conn, 0);
1da177e4 2314 }
1da177e4
LT		 2315}
2316
f0d6a0ea
MA		 2317static u8 hci_to_mgmt_reason(u8 err)
2318{
2319 switch (err) {
2320 case HCI_ERROR_CONNECTION_TIMEOUT:
2321 return MGMT_DEV_DISCONN_TIMEOUT;
2322 case HCI_ERROR_REMOTE_USER_TERM:
2323 case HCI_ERROR_REMOTE_LOW_RESOURCES:
2324 case HCI_ERROR_REMOTE_POWER_OFF:
2325 return MGMT_DEV_DISCONN_REMOTE;
2326 case HCI_ERROR_LOCAL_HOST_TERM:
2327 return MGMT_DEV_DISCONN_LOCAL_HOST;
2328 default:
2329 return MGMT_DEV_DISCONN_UNKNOWN;
2330 }
2331}
2332
6039aa73 2333static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
04837f64 2334{
a9de9248 2335 struct hci_ev_disconn_complete *ev = (void *) skb->data;
160b9251 2336 u8 reason;
9fcb18ef 2337 struct hci_conn_params *params;
04837f64 2338 struct hci_conn *conn;
12d4a3b2 2339 bool mgmt_connected;
3846220b 2340 u8 type;
04837f64 2341
9f1db00c 2342 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
04837f64
MH		 2343
2344 hci_dev_lock(hdev);
2345
2346 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
f7520543
JH		 2347 if (!conn)
2348 goto unlock;
7d0db0a3 2349
abf54a50
AG		 2350 if (ev->status) {
2351 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2352 conn->dst_type, ev->status);
2353 goto unlock;
37d9ef76 2354 }
f7520543 2355
3846220b
AG		 2356 conn->state = BT_CLOSED;
2357
12d4a3b2 2358 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
160b9251
SJ		 2359
2360 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
2361 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
2362 else
2363 reason = hci_to_mgmt_reason(ev->reason);
2364
12d4a3b2
JH		 2365 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2366 reason, mgmt_connected);
abf54a50 2367
22f433dc
JH		 2368 if (conn->type == ACL_LINK) {
2369 if (test_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2370 hci_remove_link_key(hdev, &conn->dst);
2371
01b1cb87 2372 hci_req_update_scan(hdev);
22f433dc 2373 }
2210246c 2374
9fcb18ef
AG		 2375 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2376 if (params) {
2377 switch (params->auto_connect) {
2378 case HCI_AUTO_CONN_LINK_LOSS:
2379 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2380 break;
2381 /* Fall through */
2382
4b9e7e75 2383 case HCI_AUTO_CONN_DIRECT:
9fcb18ef 2384 case HCI_AUTO_CONN_ALWAYS:
418025d1
JH		 2385 list_del_init(&params->action);
2386 list_add(&params->action, &hdev->pend_le_conns);
2387 hci_update_background_scan(hdev);
9fcb18ef
AG		 2388 break;
2389
2390 default:
2391 break;
2392 }
2393 }
2394
3846220b 2395 type = conn->type;
2210246c 2396
3a6d576b 2397 hci_disconn_cfm(conn, ev->reason);
3846220b
AG		 2398 hci_conn_del(conn);
2399
2400 /* Re-enable advertising if necessary, since it might
2401 * have been disabled by the connection. From the
2402 * HCI_LE_Set_Advertise_Enable command description in
2403 * the core specification (v4.0):
2404 * "The Controller shall continue advertising until the Host
2405 * issues an LE_Set_Advertise_Enable command with
2406 * Advertising_Enable set to 0x00 (Advertising is disabled)
2407 * or until a connection is created or until the Advertising
2408 * is timed out due to Directed Advertising."
2409 */
2410 if (type == LE_LINK)
f2252570 2411 hci_req_reenable_advertising(hdev);
f7520543
JH		 2412
2413unlock:
04837f64
MH		 2414 hci_dev_unlock(hdev);
2415}
2416
6039aa73 2417static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2418{
a9de9248 2419 struct hci_ev_auth_complete *ev = (void *) skb->data;
04837f64 2420 struct hci_conn *conn;
1da177e4 2421
9f1db00c 2422 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
1da177e4
LT		 2423
2424 hci_dev_lock(hdev);
2425
04837f64 2426 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
d7556e20
WR		 2427 if (!conn)
2428 goto unlock;
2429
2430 if (!ev->status) {
160b9251
SJ		 2431 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2432
aa64a8b5 2433 if (!hci_conn_ssp_enabled(conn) &&
807deac2 2434 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
2064ee33 2435 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
2a611692 2436 } else {
4dae2798 2437 set_bit(HCI_CONN_AUTH, &conn->flags);
d7556e20 2438 conn->sec_level = conn->pending_sec_level;
2a611692 2439 }
d7556e20 2440 } else {
160b9251
SJ		 2441 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
2442 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2443
e1e930f5 2444 mgmt_auth_failed(conn, ev->status);
d7556e20 2445 }
1da177e4 2446
51a8efd7
JH		 2447 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2448 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
1da177e4 2449
d7556e20 2450 if (conn->state == BT_CONFIG) {
aa64a8b5 2451 if (!ev->status && hci_conn_ssp_enabled(conn)) {
d7556e20
WR		 2452 struct hci_cp_set_conn_encrypt cp;
2453 cp.handle = ev->handle;
2454 cp.encrypt = 0x01;
2455 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
807deac2 2456 &cp);
052b30b0 2457 } else {
d7556e20 2458 conn->state = BT_CONNECTED;
539c496d 2459 hci_connect_cfm(conn, ev->status);
76a68ba0 2460 hci_conn_drop(conn);
052b30b0 2461 }
d7556e20
WR		 2462 } else {
2463 hci_auth_cfm(conn, ev->status);
052b30b0 2464
d7556e20
WR		 2465 hci_conn_hold(conn);
2466 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 2467 hci_conn_drop(conn);
d7556e20
WR		 2468 }
2469
51a8efd7 2470 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
d7556e20
WR		 2471 if (!ev->status) {
2472 struct hci_cp_set_conn_encrypt cp;
2473 cp.handle = ev->handle;
2474 cp.encrypt = 0x01;
2475 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
807deac2 2476 &cp);
d7556e20 2477 } else {
51a8efd7 2478 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
d7556e20 2479 hci_encrypt_cfm(conn, ev->status, 0x00);
1da177e4
LT		 2480 }
2481 }
2482
d7556e20 2483unlock:
1da177e4
LT		 2484 hci_dev_unlock(hdev);
2485}
2486
6039aa73 2487static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2488{
127178d2
JH		 2489 struct hci_ev_remote_name *ev = (void *) skb->data;
2490 struct hci_conn *conn;
2491
a9de9248 2492 BT_DBG("%s", hdev->name);
1da177e4 2493
a9de9248 2494 hci_conn_check_pending(hdev);
127178d2
JH		 2495
2496 hci_dev_lock(hdev);
2497
b644ba33 2498 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
30dc78e1 2499
d7a5a11d 2500 if (!hci_dev_test_flag(hdev, HCI_MGMT))
b644ba33 2501 goto check_auth;
a88a9652 2502
b644ba33
JH		 2503 if (ev->status == 0)
2504 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
04124681 2505 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
b644ba33
JH		 2506 else
2507 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
2508
2509check_auth:
79c6c70c
JH		 2510 if (!conn)
2511 goto unlock;
2512
2513 if (!hci_outgoing_auth_needed(hdev, conn))
2514 goto unlock;
2515
51a8efd7 2516 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
127178d2 2517 struct hci_cp_auth_requested cp;
977f8fce
JH		 2518
2519 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2520
127178d2
JH		 2521 cp.handle = __cpu_to_le16(conn->handle);
2522 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
2523 }
2524
79c6c70c 2525unlock:
127178d2 2526 hci_dev_unlock(hdev);
a9de9248
MH		 2527}
2528
821f3766
JH		 2529static void read_enc_key_size_complete(struct hci_dev *hdev, u8 status,
2530 u16 opcode, struct sk_buff *skb)
2531{
2532 const struct hci_rp_read_enc_key_size *rp;
2533 struct hci_conn *conn;
2534 u16 handle;
2535
2536 BT_DBG("%s status 0x%02x", hdev->name, status);
2537
2538 if (!skb || skb->len < sizeof(*rp)) {
2064ee33 2539 bt_dev_err(hdev, "invalid read key size response");
821f3766
JH		 2540 return;
2541 }
2542
2543 rp = (void *)skb->data;
2544 handle = le16_to_cpu(rp->handle);
2545
2546 hci_dev_lock(hdev);
2547
2548 conn = hci_conn_hash_lookup_handle(hdev, handle);
2549 if (!conn)
2550 goto unlock;
2551
2552 /* If we fail to read the encryption key size, assume maximum
2553 * (which is the same we do also when this HCI command isn't
2554 * supported.
2555 */
2556 if (rp->status) {
2064ee33
MH		 2557 bt_dev_err(hdev, "failed to read key size for handle %u",
2558 handle);
821f3766
JH		 2559 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2560 } else {
2561 conn->enc_key_size = rp->key_size;
2562 }
2563
2564 if (conn->state == BT_CONFIG) {
2565 conn->state = BT_CONNECTED;
2566 hci_connect_cfm(conn, 0);
2567 hci_conn_drop(conn);
2568 } else {
2569 u8 encrypt;
2570
2571 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2572 encrypt = 0x00;
5d667ef6 2573 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
821f3766
JH		 2574 encrypt = 0x02;
2575 else
2576 encrypt = 0x01;
2577
2578 hci_encrypt_cfm(conn, 0, encrypt);
2579 }
2580
2581unlock:
2582 hci_dev_unlock(hdev);
2583}
2584
6039aa73 2585static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248
MH		 2586{
2587 struct hci_ev_encrypt_change *ev = (void *) skb->data;
2588 struct hci_conn *conn;
2589
9f1db00c 2590 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
1da177e4
LT		 2591
2592 hci_dev_lock(hdev);
2593
04837f64 2594 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
dc8357cc
MH		 2595 if (!conn)
2596 goto unlock;
1da177e4 2597
dc8357cc
MH		 2598 if (!ev->status) {
2599 if (ev->encrypt) {
2600 /* Encryption implies authentication */
4dae2798
JH		 2601 set_bit(HCI_CONN_AUTH, &conn->flags);
2602 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
dc8357cc 2603 conn->sec_level = conn->pending_sec_level;
abf76bad 2604
914a6ffe
MH		 2605 /* P-256 authentication key implies FIPS */
2606 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
4dae2798 2607 set_bit(HCI_CONN_FIPS, &conn->flags);
914a6ffe 2608
abf76bad
MH		 2609 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
2610 conn->type == LE_LINK)
2611 set_bit(HCI_CONN_AES_CCM, &conn->flags);
2612 } else {
4dae2798 2613 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
abf76bad
MH		 2614 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
2615 }
dc8357cc 2616 }
a7d7723a 2617
7ed3fa20
JH		 2618 /* We should disregard the current RPA and generate a new one
2619 * whenever the encryption procedure fails.
2620 */
2621 if (ev->status && conn->type == LE_LINK)
a1536da2 2622 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
7ed3fa20 2623
dc8357cc 2624 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
f8558555 2625
dc8357cc 2626 if (ev->status && conn->state == BT_CONNECTED) {
160b9251
SJ		 2627 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
2628 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2629
dc8357cc
MH		 2630 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2631 hci_conn_drop(conn);
2632 goto unlock;
1da177e4
LT		 2633 }
2634
035ad621
JH		 2635 /* In Secure Connections Only mode, do not allow any connections
2636 * that are not encrypted with AES-CCM using a P-256 authenticated
2637 * combination key.
2638 */
2639 if (hci_dev_test_flag(hdev, HCI_SC_ONLY) &&
2640 (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
2641 conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
2642 hci_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
2643 hci_conn_drop(conn);
2644 goto unlock;
2645 }
2646
821f3766
JH		 2647 /* Try reading the encryption key size for encrypted ACL links */
2648 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
2649 struct hci_cp_read_enc_key_size cp;
2650 struct hci_request req;
2651
2652 /* Only send HCI_Read_Encryption_Key_Size if the
2653 * controller really supports it. If it doesn't, assume
2654 * the default size (16).
2655 */
2656 if (!(hdev->commands[20] & 0x10)) {
2657 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2658 goto notify;
2659 }
2660
2661 hci_req_init(&req, hdev);
2662
2663 cp.handle = cpu_to_le16(conn->handle);
2664 hci_req_add(&req, HCI_OP_READ_ENC_KEY_SIZE, sizeof(cp), &cp);
2665
2666 if (hci_req_run_skb(&req, read_enc_key_size_complete)) {
2064ee33 2667 bt_dev_err(hdev, "sending read key size failed");
821f3766
JH		 2668 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2669 goto notify;
2670 }
2671
2672 goto unlock;
2673 }
2674
2675notify:
dc8357cc
MH		 2676 if (conn->state == BT_CONFIG) {
2677 if (!ev->status)
2678 conn->state = BT_CONNECTED;
2679
539c496d 2680 hci_connect_cfm(conn, ev->status);
dc8357cc
MH		 2681 hci_conn_drop(conn);
2682 } else
2683 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
2684
a7d7723a 2685unlock:
1da177e4
LT		 2686 hci_dev_unlock(hdev);
2687}
2688
6039aa73
GP		 2689static void hci_change_link_key_complete_evt(struct hci_dev *hdev,
2690 struct sk_buff *skb)
1da177e4 2691{
a9de9248 2692 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
04837f64 2693 struct hci_conn *conn;
1da177e4 2694
9f1db00c 2695 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
1da177e4
LT		 2696
2697 hci_dev_lock(hdev);
2698
04837f64 2699 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1da177e4
LT		 2700 if (conn) {
2701 if (!ev->status)
4dae2798 2702 set_bit(HCI_CONN_SECURE, &conn->flags);
1da177e4 2703
51a8efd7 2704 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
1da177e4
LT		 2705
2706 hci_key_change_cfm(conn, ev->status);
2707 }
2708
2709 hci_dev_unlock(hdev);
2710}
2711
6039aa73
GP		 2712static void hci_remote_features_evt(struct hci_dev *hdev,
2713 struct sk_buff *skb)
1da177e4 2714{
a9de9248
MH		 2715 struct hci_ev_remote_features *ev = (void *) skb->data;
2716 struct hci_conn *conn;
2717
9f1db00c 2718 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
a9de9248 2719
a9de9248
MH		 2720 hci_dev_lock(hdev);
2721
2722 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
ccd556fe
JH		 2723 if (!conn)
2724 goto unlock;
769be974 2725
ccd556fe 2726 if (!ev->status)
cad718ed 2727 memcpy(conn->features[0], ev->features, 8);
ccd556fe
JH		 2728
2729 if (conn->state != BT_CONFIG)
2730 goto unlock;
2731
ac363cf9
SJ		 2732 if (!ev->status && lmp_ext_feat_capable(hdev) &&
2733 lmp_ext_feat_capable(conn)) {
ccd556fe
JH		 2734 struct hci_cp_read_remote_ext_features cp;
2735 cp.handle = ev->handle;
2736 cp.page = 0x01;
2737 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
807deac2 2738 sizeof(cp), &cp);
392599b9
JH		 2739 goto unlock;
2740 }
2741
671267bf 2742 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
127178d2
JH		 2743 struct hci_cp_remote_name_req cp;
2744 memset(&cp, 0, sizeof(cp));
2745 bacpy(&cp.bdaddr, &conn->dst);
2746 cp.pscan_rep_mode = 0x02;
2747 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
b644ba33 2748 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
48ec92fa 2749 mgmt_device_connected(hdev, conn, 0, NULL, 0);
392599b9 2750
127178d2 2751 if (!hci_outgoing_auth_needed(hdev, conn)) {
ccd556fe 2752 conn->state = BT_CONNECTED;
539c496d 2753 hci_connect_cfm(conn, ev->status);
76a68ba0 2754 hci_conn_drop(conn);
769be974 2755 }
a9de9248 2756
ccd556fe 2757unlock:
a9de9248 2758 hci_dev_unlock(hdev);
1da177e4
LT		 2759}
2760
e6214487
JH		 2761static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
2762 u16 *opcode, u8 *status,
2763 hci_req_complete_t *req_complete,
2764 hci_req_complete_skb_t *req_complete_skb)
a9de9248
MH		 2765{
2766 struct hci_ev_cmd_complete *ev = (void *) skb->data;
a9de9248 2767
e6214487
JH		 2768 *opcode = __le16_to_cpu(ev->opcode);
2769 *status = skb->data[sizeof(*ev)];
a9de9248 2770
e6214487 2771 skb_pull(skb, sizeof(*ev));
a9de9248 2772
e6214487 2773 switch (*opcode) {
a9de9248
MH		 2774 case HCI_OP_INQUIRY_CANCEL:
2775 hci_cc_inquiry_cancel(hdev, skb);
2776 break;
2777
4d93483b
AG		 2778 case HCI_OP_PERIODIC_INQ:
2779 hci_cc_periodic_inq(hdev, skb);
2780 break;
2781
a9de9248
MH		 2782 case HCI_OP_EXIT_PERIODIC_INQ:
2783 hci_cc_exit_periodic_inq(hdev, skb);
2784 break;
2785
2786 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
2787 hci_cc_remote_name_req_cancel(hdev, skb);
2788 break;
2789
2790 case HCI_OP_ROLE_DISCOVERY:
2791 hci_cc_role_discovery(hdev, skb);
2792 break;
2793
e4e8e37c
MH		 2794 case HCI_OP_READ_LINK_POLICY:
2795 hci_cc_read_link_policy(hdev, skb);
2796 break;
2797
a9de9248
MH		 2798 case HCI_OP_WRITE_LINK_POLICY:
2799 hci_cc_write_link_policy(hdev, skb);
2800 break;
2801
e4e8e37c
MH		 2802 case HCI_OP_READ_DEF_LINK_POLICY:
2803 hci_cc_read_def_link_policy(hdev, skb);
2804 break;
2805
2806 case HCI_OP_WRITE_DEF_LINK_POLICY:
2807 hci_cc_write_def_link_policy(hdev, skb);
2808 break;
2809
a9de9248
MH		 2810 case HCI_OP_RESET:
2811 hci_cc_reset(hdev, skb);
2812 break;
2813
c2f0f979
MH		 2814 case HCI_OP_READ_STORED_LINK_KEY:
2815 hci_cc_read_stored_link_key(hdev, skb);
2816 break;
2817
a9366120
MH		 2818 case HCI_OP_DELETE_STORED_LINK_KEY:
2819 hci_cc_delete_stored_link_key(hdev, skb);
2820 break;
2821
a9de9248
MH		 2822 case HCI_OP_WRITE_LOCAL_NAME:
2823 hci_cc_write_local_name(hdev, skb);
2824 break;
2825
2826 case HCI_OP_READ_LOCAL_NAME:
2827 hci_cc_read_local_name(hdev, skb);
2828 break;
2829
2830 case HCI_OP_WRITE_AUTH_ENABLE:
2831 hci_cc_write_auth_enable(hdev, skb);
2832 break;
2833
2834 case HCI_OP_WRITE_ENCRYPT_MODE:
2835 hci_cc_write_encrypt_mode(hdev, skb);
2836 break;
2837
2838 case HCI_OP_WRITE_SCAN_ENABLE:
2839 hci_cc_write_scan_enable(hdev, skb);
2840 break;
2841
2842 case HCI_OP_READ_CLASS_OF_DEV:
2843 hci_cc_read_class_of_dev(hdev, skb);
2844 break;
2845
2846 case HCI_OP_WRITE_CLASS_OF_DEV:
2847 hci_cc_write_class_of_dev(hdev, skb);
2848 break;
2849
2850 case HCI_OP_READ_VOICE_SETTING:
2851 hci_cc_read_voice_setting(hdev, skb);
2852 break;
2853
2854 case HCI_OP_WRITE_VOICE_SETTING:
2855 hci_cc_write_voice_setting(hdev, skb);
2856 break;
2857
b4cb9fb2
MH		 2858 case HCI_OP_READ_NUM_SUPPORTED_IAC:
2859 hci_cc_read_num_supported_iac(hdev, skb);
2860 break;
2861
333140b5
MH		 2862 case HCI_OP_WRITE_SSP_MODE:
2863 hci_cc_write_ssp_mode(hdev, skb);
2864 break;
2865
eac83dc6
MH		 2866 case HCI_OP_WRITE_SC_SUPPORT:
2867 hci_cc_write_sc_support(hdev, skb);
2868 break;
2869
a9de9248
MH		 2870 case HCI_OP_READ_LOCAL_VERSION:
2871 hci_cc_read_local_version(hdev, skb);
2872 break;
2873
2874 case HCI_OP_READ_LOCAL_COMMANDS:
2875 hci_cc_read_local_commands(hdev, skb);
2876 break;
2877
2878 case HCI_OP_READ_LOCAL_FEATURES:
2879 hci_cc_read_local_features(hdev, skb);
2880 break;
2881
971e3a4b
AG		 2882 case HCI_OP_READ_LOCAL_EXT_FEATURES:
2883 hci_cc_read_local_ext_features(hdev, skb);
2884 break;
2885
a9de9248
MH		 2886 case HCI_OP_READ_BUFFER_SIZE:
2887 hci_cc_read_buffer_size(hdev, skb);
2888 break;
2889
2890 case HCI_OP_READ_BD_ADDR:
2891 hci_cc_read_bd_addr(hdev, skb);
2892 break;
2893
f332ec66
JH		 2894 case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
2895 hci_cc_read_page_scan_activity(hdev, skb);
2896 break;
2897
4a3ee763
JH		 2898 case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY:
2899 hci_cc_write_page_scan_activity(hdev, skb);
2900 break;
2901
f332ec66
JH		 2902 case HCI_OP_READ_PAGE_SCAN_TYPE:
2903 hci_cc_read_page_scan_type(hdev, skb);
2904 break;
2905
4a3ee763
JH		 2906 case HCI_OP_WRITE_PAGE_SCAN_TYPE:
2907 hci_cc_write_page_scan_type(hdev, skb);
2908 break;
2909
350ee4cf
AE		 2910 case HCI_OP_READ_DATA_BLOCK_SIZE:
2911 hci_cc_read_data_block_size(hdev, skb);
2912 break;
2913
1e89cffb
AE		 2914 case HCI_OP_READ_FLOW_CONTROL_MODE:
2915 hci_cc_read_flow_control_mode(hdev, skb);
2916 break;
2917
928abaa7
AE		 2918 case HCI_OP_READ_LOCAL_AMP_INFO:
2919 hci_cc_read_local_amp_info(hdev, skb);
2920 break;
2921
33f35721
JH		 2922 case HCI_OP_READ_CLOCK:
2923 hci_cc_read_clock(hdev, skb);
2924 break;
2925
d5859e22
JH		 2926 case HCI_OP_READ_INQ_RSP_TX_POWER:
2927 hci_cc_read_inq_rsp_tx_power(hdev, skb);
2928 break;
2929
980e1a53
JH		 2930 case HCI_OP_PIN_CODE_REPLY:
2931 hci_cc_pin_code_reply(hdev, skb);
2932 break;
2933
2934 case HCI_OP_PIN_CODE_NEG_REPLY:
2935 hci_cc_pin_code_neg_reply(hdev, skb);
2936 break;
2937
c35938b2 2938 case HCI_OP_READ_LOCAL_OOB_DATA:
4d2d2796
MH		 2939 hci_cc_read_local_oob_data(hdev, skb);
2940 break;
2941
2942 case HCI_OP_READ_LOCAL_OOB_EXT_DATA:
2943 hci_cc_read_local_oob_ext_data(hdev, skb);
c35938b2
SJ		 2944 break;
2945
6ed58ec5
VT		 2946 case HCI_OP_LE_READ_BUFFER_SIZE:
2947 hci_cc_le_read_buffer_size(hdev, skb);
2948 break;
2949
60e77321
JH		 2950 case HCI_OP_LE_READ_LOCAL_FEATURES:
2951 hci_cc_le_read_local_features(hdev, skb);
2952 break;
2953
8fa19098
JH		 2954 case HCI_OP_LE_READ_ADV_TX_POWER:
2955 hci_cc_le_read_adv_tx_power(hdev, skb);
2956 break;
2957
a5c29683
JH		 2958 case HCI_OP_USER_CONFIRM_REPLY:
2959 hci_cc_user_confirm_reply(hdev, skb);
2960 break;
2961
2962 case HCI_OP_USER_CONFIRM_NEG_REPLY:
2963 hci_cc_user_confirm_neg_reply(hdev, skb);
2964 break;
2965
1143d458
BG		 2966 case HCI_OP_USER_PASSKEY_REPLY:
2967 hci_cc_user_passkey_reply(hdev, skb);
2968 break;
2969
2970 case HCI_OP_USER_PASSKEY_NEG_REPLY:
2971 hci_cc_user_passkey_neg_reply(hdev, skb);
16cde993 2972 break;
07f7fa5d 2973
7a4cd51d
MH		 2974 case HCI_OP_LE_SET_RANDOM_ADDR:
2975 hci_cc_le_set_random_addr(hdev, skb);
2976 break;
2977
c1d5dc4a
JH		 2978 case HCI_OP_LE_SET_ADV_ENABLE:
2979 hci_cc_le_set_adv_enable(hdev, skb);
2980 break;
2981
533553f8
MH		 2982 case HCI_OP_LE_SET_SCAN_PARAM:
2983 hci_cc_le_set_scan_param(hdev, skb);
2984 break;
2985
eb9d91f5
AG		 2986 case HCI_OP_LE_SET_SCAN_ENABLE:
2987 hci_cc_le_set_scan_enable(hdev, skb);
2988 break;
2989
cf1d081f
JH		 2990 case HCI_OP_LE_READ_WHITE_LIST_SIZE:
2991 hci_cc_le_read_white_list_size(hdev, skb);
2992 break;
2993
0f36b589
MH		 2994 case HCI_OP_LE_CLEAR_WHITE_LIST:
2995 hci_cc_le_clear_white_list(hdev, skb);
2996 break;
2997
2998 case HCI_OP_LE_ADD_TO_WHITE_LIST:
2999 hci_cc_le_add_to_white_list(hdev, skb);
3000 break;
3001
3002 case HCI_OP_LE_DEL_FROM_WHITE_LIST:
3003 hci_cc_le_del_from_white_list(hdev, skb);
3004 break;
3005
9b008c04
JH		 3006 case HCI_OP_LE_READ_SUPPORTED_STATES:
3007 hci_cc_le_read_supported_states(hdev, skb);
3008 break;
3009
a8e1bfaa
MH		 3010 case HCI_OP_LE_READ_DEF_DATA_LEN:
3011 hci_cc_le_read_def_data_len(hdev, skb);
3012 break;
3013
3014 case HCI_OP_LE_WRITE_DEF_DATA_LEN:
3015 hci_cc_le_write_def_data_len(hdev, skb);
3016 break;
3017
3018 case HCI_OP_LE_READ_MAX_DATA_LEN:
3019 hci_cc_le_read_max_data_len(hdev, skb);
3020 break;
3021
f9b49306
AG		 3022 case HCI_OP_WRITE_LE_HOST_SUPPORTED:
3023 hci_cc_write_le_host_supported(hdev, skb);
3024 break;
3025
56ed2cb8
JH		 3026 case HCI_OP_LE_SET_ADV_PARAM:
3027 hci_cc_set_adv_param(hdev, skb);
3028 break;
3029
5ae76a94
AK		 3030 case HCI_OP_READ_RSSI:
3031 hci_cc_read_rssi(hdev, skb);
3032 break;
3033
5a134fae
AK		 3034 case HCI_OP_READ_TX_POWER:
3035 hci_cc_read_tx_power(hdev, skb);
3036 break;
3037
c50b33c8
MH		 3038 case HCI_OP_WRITE_SSP_DEBUG_MODE:
3039 hci_cc_write_ssp_debug_mode(hdev, skb);
3040 break;
3041
a9de9248 3042 default:
e6214487 3043 BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
a9de9248
MH		 3044 break;
3045 }
3046
e6214487 3047 if (*opcode != HCI_OP_NOP)
65cc2b49 3048 cancel_delayed_work(&hdev->cmd_timer);
6bd32326 3049
600b2150
JH		 3050 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
3051 atomic_set(&hdev->cmd_cnt, 1);
3052
e6214487
JH		 3053 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
3054 req_complete_skb);
9238f36a 3055
600b2150
JH		 3056 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
3057 queue_work(hdev->workqueue, &hdev->cmd_work);
a9de9248
MH		 3058}
3059
e6214487
JH		 3060static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb,
3061 u16 *opcode, u8 *status,
3062 hci_req_complete_t *req_complete,
3063 hci_req_complete_skb_t *req_complete_skb)
a9de9248
MH		 3064{
3065 struct hci_ev_cmd_status *ev = (void *) skb->data;
a9de9248
MH		 3066
3067 skb_pull(skb, sizeof(*ev));
3068
e6214487
JH		 3069 *opcode = __le16_to_cpu(ev->opcode);
3070 *status = ev->status;
a9de9248 3071
e6214487 3072 switch (*opcode) {
a9de9248
MH		 3073 case HCI_OP_INQUIRY:
3074 hci_cs_inquiry(hdev, ev->status);
3075 break;
3076
3077 case HCI_OP_CREATE_CONN:
3078 hci_cs_create_conn(hdev, ev->status);
3079 break;
3080
9645c76c
KP		 3081 case HCI_OP_DISCONNECT:
3082 hci_cs_disconnect(hdev, ev->status);
3083 break;
3084
a9de9248
MH		 3085 case HCI_OP_ADD_SCO:
3086 hci_cs_add_sco(hdev, ev->status);
3087 break;
3088
f8558555
MH		 3089 case HCI_OP_AUTH_REQUESTED:
3090 hci_cs_auth_requested(hdev, ev->status);
3091 break;
3092
3093 case HCI_OP_SET_CONN_ENCRYPT:
3094 hci_cs_set_conn_encrypt(hdev, ev->status);
3095 break;
3096
a9de9248
MH		 3097 case HCI_OP_REMOTE_NAME_REQ:
3098 hci_cs_remote_name_req(hdev, ev->status);
3099 break;
3100
769be974
MH		 3101 case HCI_OP_READ_REMOTE_FEATURES:
3102 hci_cs_read_remote_features(hdev, ev->status);
3103 break;
3104
3105 case HCI_OP_READ_REMOTE_EXT_FEATURES:
3106 hci_cs_read_remote_ext_features(hdev, ev->status);
3107 break;
3108
a9de9248
MH		 3109 case HCI_OP_SETUP_SYNC_CONN:
3110 hci_cs_setup_sync_conn(hdev, ev->status);
3111 break;
3112
3113 case HCI_OP_SNIFF_MODE:
3114 hci_cs_sniff_mode(hdev, ev->status);
3115 break;
3116
3117 case HCI_OP_EXIT_SNIFF_MODE:
3118 hci_cs_exit_sniff_mode(hdev, ev->status);
3119 break;
3120
50fc85f1
KP		 3121 case HCI_OP_SWITCH_ROLE:
3122 hci_cs_switch_role(hdev, ev->status);
3123 break;
3124
cb1d68f7
JH		 3125 case HCI_OP_LE_CREATE_CONN:
3126 hci_cs_le_create_conn(hdev, ev->status);
3127 break;
3128
0fe29fd1
MH		 3129 case HCI_OP_LE_READ_REMOTE_FEATURES:
3130 hci_cs_le_read_remote_features(hdev, ev->status);
3131 break;
3132
81d0c8ad
JH		 3133 case HCI_OP_LE_START_ENC:
3134 hci_cs_le_start_enc(hdev, ev->status);
3135 break;
3136
a9de9248 3137 default:
e6214487 3138 BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
a9de9248
MH		 3139 break;
3140 }
3141
e6214487 3142 if (*opcode != HCI_OP_NOP)
65cc2b49 3143 cancel_delayed_work(&hdev->cmd_timer);
6bd32326 3144
600b2150
JH		 3145 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
3146 atomic_set(&hdev->cmd_cnt, 1);
3147
444c6dd5
JH		 3148 /* Indicate request completion if the command failed. Also, if
3149 * we're not waiting for a special event and we get a success
3150 * command status we should try to flag the request as completed
3151 * (since for this kind of commands there will not be a command
3152 * complete event).
3153 */
02350a72 3154 if (ev->status ||
242c0ebd 3155 (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->hci.req_event))
e6214487
JH		 3156 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
3157 req_complete_skb);
9238f36a 3158
600b2150
JH		 3159 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
3160 queue_work(hdev->workqueue, &hdev->cmd_work);
a9de9248
MH		 3161}
3162
24dfa343
MH		 3163static void hci_hardware_error_evt(struct hci_dev *hdev, struct sk_buff *skb)
3164{
3165 struct hci_ev_hardware_error *ev = (void *) skb->data;
3166
c7741d16
MH		 3167 hdev->hw_error_code = ev->code;
3168
3169 queue_work(hdev->req_workqueue, &hdev->error_reset);
24dfa343
MH		 3170}
3171
6039aa73 3172static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248
MH		 3173{
3174 struct hci_ev_role_change *ev = (void *) skb->data;
3175 struct hci_conn *conn;
3176
9f1db00c 3177 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
a9de9248
MH		 3178
3179 hci_dev_lock(hdev);
3180
3181 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3182 if (conn) {
40bef302
JH		 3183 if (!ev->status)
3184 conn->role = ev->role;
a9de9248 3185
51a8efd7 3186 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
a9de9248
MH		 3187
3188 hci_role_switch_cfm(conn, ev->status, ev->role);
3189 }
3190
3191 hci_dev_unlock(hdev);
3192}
3193
6039aa73 3194static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248
MH		 3195{
3196 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
a9de9248
MH		 3197 int i;
3198
32ac5b9b 3199 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
2064ee33 3200 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
32ac5b9b
AE		 3201 return;
3202 }
3203
c5993de8 3204 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
807deac2 3205 ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
a9de9248
MH		 3206 BT_DBG("%s bad parameters", hdev->name);
3207 return;
3208 }
3209
c5993de8
AE		 3210 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
3211
613a1c0c
AE		 3212 for (i = 0; i < ev->num_hndl; i++) {
3213 struct hci_comp_pkts_info *info = &ev->handles[i];
a9de9248
MH		 3214 struct hci_conn *conn;
3215 __u16 handle, count;
3216
613a1c0c
AE		 3217 handle = __le16_to_cpu(info->handle);
3218 count = __le16_to_cpu(info->count);
a9de9248
MH		 3219
3220 conn = hci_conn_hash_lookup_handle(hdev, handle);
f4280918
AE		 3221 if (!conn)
3222 continue;
3223
3224 conn->sent -= count;
3225
3226 switch (conn->type) {
3227 case ACL_LINK:
3228 hdev->acl_cnt += count;
3229 if (hdev->acl_cnt > hdev->acl_pkts)
3230 hdev->acl_cnt = hdev->acl_pkts;
3231 break;
3232
3233 case LE_LINK:
3234 if (hdev->le_pkts) {
3235 hdev->le_cnt += count;
3236 if (hdev->le_cnt > hdev->le_pkts)
3237 hdev->le_cnt = hdev->le_pkts;
3238 } else {
70f23020
AE		 3239 hdev->acl_cnt += count;
3240 if (hdev->acl_cnt > hdev->acl_pkts)
a9de9248 3241 hdev->acl_cnt = hdev->acl_pkts;
a9de9248 3242 }
f4280918
AE		 3243 break;
3244
3245 case SCO_LINK:
3246 hdev->sco_cnt += count;
3247 if (hdev->sco_cnt > hdev->sco_pkts)
3248 hdev->sco_cnt = hdev->sco_pkts;
3249 break;
3250
3251 default:
2064ee33
MH		 3252 bt_dev_err(hdev, "unknown type %d conn %p",
3253 conn->type, conn);
f4280918 3254 break;
a9de9248
MH		 3255 }
3256 }
3257
3eff45ea 3258 queue_work(hdev->workqueue, &hdev->tx_work);
a9de9248
MH		 3259}
3260
76ef7cf7
AE		 3261static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
3262 __u16 handle)
3263{
3264 struct hci_chan *chan;
3265
3266 switch (hdev->dev_type) {
ca8bee5d 3267 case HCI_PRIMARY:
76ef7cf7
AE		 3268 return hci_conn_hash_lookup_handle(hdev, handle);
3269 case HCI_AMP:
3270 chan = hci_chan_lookup_handle(hdev, handle);
3271 if (chan)
3272 return chan->conn;
3273 break;
3274 default:
2064ee33 3275 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
76ef7cf7
AE		 3276 break;
3277 }
3278
3279 return NULL;
3280}
3281
6039aa73 3282static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
25e89e99
AE		 3283{
3284 struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
3285 int i;
3286
3287 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
2064ee33 3288 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
25e89e99
AE		 3289 return;
3290 }
3291
3292 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
807deac2 3293 ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
25e89e99
AE		 3294 BT_DBG("%s bad parameters", hdev->name);
3295 return;
3296 }
3297
3298 BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
807deac2 3299 ev->num_hndl);
25e89e99
AE		 3300
3301 for (i = 0; i < ev->num_hndl; i++) {
3302 struct hci_comp_blocks_info *info = &ev->handles[i];
76ef7cf7 3303 struct hci_conn *conn = NULL;
25e89e99
AE		 3304 __u16 handle, block_count;
3305
3306 handle = __le16_to_cpu(info->handle);
3307 block_count = __le16_to_cpu(info->blocks);
3308
76ef7cf7 3309 conn = __hci_conn_lookup_handle(hdev, handle);
25e89e99
AE		 3310 if (!conn)
3311 continue;
3312
3313 conn->sent -= block_count;
3314
3315 switch (conn->type) {
3316 case ACL_LINK:
bd1eb66b 3317 case AMP_LINK:
25e89e99
AE		 3318 hdev->block_cnt += block_count;
3319 if (hdev->block_cnt > hdev->num_blocks)
3320 hdev->block_cnt = hdev->num_blocks;
3321 break;
3322
3323 default:
2064ee33
MH		 3324 bt_dev_err(hdev, "unknown type %d conn %p",
3325 conn->type, conn);
25e89e99
AE		 3326 break;
3327 }
3328 }
3329
3330 queue_work(hdev->workqueue, &hdev->tx_work);
3331}
3332
6039aa73 3333static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
04837f64 3334{
a9de9248 3335 struct hci_ev_mode_change *ev = (void *) skb->data;
04837f64
MH		 3336 struct hci_conn *conn;
3337
9f1db00c 3338 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
04837f64
MH		 3339
3340 hci_dev_lock(hdev);
3341
3342 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
a9de9248
MH		 3343 if (conn) {
3344 conn->mode = ev->mode;
a9de9248 3345
8fc9ced3
GP		 3346 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
3347 &conn->flags)) {
a9de9248 3348 if (conn->mode == HCI_CM_ACTIVE)
58a681ef 3349 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
a9de9248 3350 else
58a681ef 3351 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
a9de9248 3352 }
e73439d8 3353
51a8efd7 3354 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
e73439d8 3355 hci_sco_setup(conn, ev->status);
04837f64
MH		 3356 }
3357
3358 hci_dev_unlock(hdev);
3359}
3360
6039aa73 3361static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248 3362{
052b30b0
MH		 3363 struct hci_ev_pin_code_req *ev = (void *) skb->data;
3364 struct hci_conn *conn;
3365
a9de9248 3366 BT_DBG("%s", hdev->name);
052b30b0
MH		 3367
3368 hci_dev_lock(hdev);
3369
3370 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
b6f98044
WR		 3371 if (!conn)
3372 goto unlock;
3373
3374 if (conn->state == BT_CONNECTED) {
052b30b0
MH		 3375 hci_conn_hold(conn);
3376 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
76a68ba0 3377 hci_conn_drop(conn);
052b30b0
MH		 3378 }
3379
d7a5a11d 3380 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
2f407f0a 3381 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
03b555e1 3382 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
807deac2 3383 sizeof(ev->bdaddr), &ev->bdaddr);
d7a5a11d 3384 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
a770bb5a
WR		 3385 u8 secure;
3386
3387 if (conn->pending_sec_level == BT_SECURITY_HIGH)
3388 secure = 1;
3389 else
3390 secure = 0;
3391
744cf19e 3392 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
a770bb5a 3393 }
980e1a53 3394
b6f98044 3395unlock:
052b30b0 3396 hci_dev_unlock(hdev);
a9de9248
MH		 3397}
3398
cb6f3f7a
JH		 3399static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
3400{
3401 if (key_type == HCI_LK_CHANGED_COMBINATION)
3402 return;
3403
3404 conn->pin_length = pin_len;
3405 conn->key_type = key_type;
3406
3407 switch (key_type) {
3408 case HCI_LK_LOCAL_UNIT:
3409 case HCI_LK_REMOTE_UNIT:
3410 case HCI_LK_DEBUG_COMBINATION:
3411 return;
3412 case HCI_LK_COMBINATION:
3413 if (pin_len == 16)
3414 conn->pending_sec_level = BT_SECURITY_HIGH;
3415 else
3416 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3417 break;
3418 case HCI_LK_UNAUTH_COMBINATION_P192:
3419 case HCI_LK_UNAUTH_COMBINATION_P256:
3420 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3421 break;
3422 case HCI_LK_AUTH_COMBINATION_P192:
3423 conn->pending_sec_level = BT_SECURITY_HIGH;
3424 break;
3425 case HCI_LK_AUTH_COMBINATION_P256:
3426 conn->pending_sec_level = BT_SECURITY_FIPS;
3427 break;
3428 }
3429}
3430
6039aa73 3431static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248 3432{
55ed8ca1
JH		 3433 struct hci_ev_link_key_req *ev = (void *) skb->data;
3434 struct hci_cp_link_key_reply cp;
3435 struct hci_conn *conn;
3436 struct link_key *key;
3437
a9de9248 3438 BT_DBG("%s", hdev->name);
55ed8ca1 3439
d7a5a11d 3440 if (!hci_dev_test_flag(hdev, HCI_MGMT))
55ed8ca1
JH		 3441 return;
3442
3443 hci_dev_lock(hdev);
3444
3445 key = hci_find_link_key(hdev, &ev->bdaddr);
3446 if (!key) {
6ed93dc6
AE		 3447 BT_DBG("%s link key not found for %pMR", hdev->name,
3448 &ev->bdaddr);
55ed8ca1
JH		 3449 goto not_found;
3450 }
3451
6ed93dc6
AE		 3452 BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
3453 &ev->bdaddr);
55ed8ca1 3454
55ed8ca1 3455 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
60b83f57 3456 if (conn) {
fe8bc5ac
JH		 3457 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
3458
66138ce8
MH		 3459 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
3460 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
807deac2 3461 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
60b83f57
WR		 3462 BT_DBG("%s ignoring unauthenticated key", hdev->name);
3463 goto not_found;
3464 }
55ed8ca1 3465
60b83f57 3466 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
f3fb0b58
JH		 3467 (conn->pending_sec_level == BT_SECURITY_HIGH ||
3468 conn->pending_sec_level == BT_SECURITY_FIPS)) {
8fc9ced3
GP		 3469 BT_DBG("%s ignoring key unauthenticated for high security",
3470 hdev->name);
60b83f57
WR		 3471 goto not_found;
3472 }
3473
cb6f3f7a 3474 conn_set_key(conn, key->type, key->pin_len);
55ed8ca1
JH		 3475 }
3476
3477 bacpy(&cp.bdaddr, &ev->bdaddr);
9b3b4460 3478 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
55ed8ca1
JH		 3479
3480 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
3481
3482 hci_dev_unlock(hdev);
3483
3484 return;
3485
3486not_found:
3487 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
3488 hci_dev_unlock(hdev);
a9de9248
MH		 3489}
3490
6039aa73 3491static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248 3492{
052b30b0
MH		 3493 struct hci_ev_link_key_notify *ev = (void *) skb->data;
3494 struct hci_conn *conn;
7652ff6a
JH		 3495 struct link_key *key;
3496 bool persistent;
55ed8ca1 3497 u8 pin_len = 0;
052b30b0 3498
a9de9248 3499 BT_DBG("%s", hdev->name);
052b30b0
MH		 3500
3501 hci_dev_lock(hdev);
3502
3503 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
82c13d42
JH		 3504 if (!conn)
3505 goto unlock;
3506
3507 hci_conn_hold(conn);
3508 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3509 hci_conn_drop(conn);
3510
fe8bc5ac 3511 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
82c13d42 3512 conn_set_key(conn, ev->key_type, conn->pin_length);
052b30b0 3513
d7a5a11d 3514 if (!hci_dev_test_flag(hdev, HCI_MGMT))
7652ff6a
JH		 3515 goto unlock;
3516
3517 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
3518 ev->key_type, pin_len, &persistent);
3519 if (!key)
3520 goto unlock;
3521
cb6f3f7a
JH		 3522 /* Update connection information since adding the key will have
3523 * fixed up the type in the case of changed combination keys.
3524 */
3525 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
3526 conn_set_key(conn, key->type, key->pin_len);
3527
7652ff6a 3528 mgmt_new_link_key(hdev, key, persistent);
55ed8ca1 3529
6d5650c4
JH		 3530 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
3531 * is set. If it's not set simply remove the key from the kernel
3532 * list (we've still notified user space about it but with
3533 * store_hint being 0).
3534 */
3535 if (key->type == HCI_LK_DEBUG_COMBINATION &&
d7a5a11d 3536 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
0378b597
JH		 3537 list_del_rcu(&key->list);
3538 kfree_rcu(key, rcu);
82c13d42 3539 goto unlock;
6d5650c4 3540 }
7652ff6a 3541
82c13d42
JH		 3542 if (persistent)
3543 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3544 else
3545 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3546
7652ff6a 3547unlock:
052b30b0 3548 hci_dev_unlock(hdev);
a9de9248
MH		 3549}
3550
6039aa73 3551static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 3552{
a9de9248 3553 struct hci_ev_clock_offset *ev = (void *) skb->data;
04837f64 3554 struct hci_conn *conn;
1da177e4 3555
9f1db00c 3556 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
1da177e4
LT		 3557
3558 hci_dev_lock(hdev);
3559
04837f64 3560 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1da177e4
LT		 3561 if (conn && !ev->status) {
3562 struct inquiry_entry *ie;
3563
cc11b9c1
AE		 3564 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3565 if (ie) {
1da177e4
LT		 3566 ie->data.clock_offset = ev->clock_offset;
3567 ie->timestamp = jiffies;
3568 }
3569 }
3570
3571 hci_dev_unlock(hdev);
3572}
3573
6039aa73 3574static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
a8746417
MH		 3575{
3576 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
3577 struct hci_conn *conn;
3578
9f1db00c 3579 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
a8746417
MH		 3580
3581 hci_dev_lock(hdev);
3582
3583 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3584 if (conn && !ev->status)
3585 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
3586
3587 hci_dev_unlock(hdev);
3588}
3589
6039aa73 3590static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
85a1e930 3591{
a9de9248 3592 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
85a1e930
MH		 3593 struct inquiry_entry *ie;
3594
3595 BT_DBG("%s", hdev->name);
3596
3597 hci_dev_lock(hdev);
3598
cc11b9c1
AE		 3599 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3600 if (ie) {
85a1e930
MH		 3601 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
3602 ie->timestamp = jiffies;
3603 }
3604
3605 hci_dev_unlock(hdev);
3606}
3607
6039aa73
GP		 3608static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
3609 struct sk_buff *skb)
a9de9248
MH		 3610{
3611 struct inquiry_data data;
3612 int num_rsp = *((__u8 *) skb->data);
3613
3614 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3615
3616 if (!num_rsp)
3617 return;
3618
d7a5a11d 3619 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 3620 return;
3621
a9de9248
MH		 3622 hci_dev_lock(hdev);
3623
3624 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
138d22ef
SJ		 3625 struct inquiry_info_with_rssi_and_pscan_mode *info;
3626 info = (void *) (skb->data + 1);
a9de9248 3627
e17acd40 3628 for (; num_rsp; num_rsp--, info++) {
af58925c
MH		 3629 u32 flags;
3630
a9de9248
MH		 3631 bacpy(&data.bdaddr, &info->bdaddr);
3632 data.pscan_rep_mode = info->pscan_rep_mode;
3633 data.pscan_period_mode = info->pscan_period_mode;
3634 data.pscan_mode = info->pscan_mode;
3635 memcpy(data.dev_class, info->dev_class, 3);
3636 data.clock_offset = info->clock_offset;
3637 data.rssi = info->rssi;
41a96212 3638 data.ssp_mode = 0x00;
3175405b 3639
af58925c
MH		 3640 flags = hci_inquiry_cache_update(hdev, &data, false);
3641
48264f06 3642 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
04124681 3643 info->dev_class, info->rssi,
af58925c 3644 flags, NULL, 0, NULL, 0);
a9de9248
MH		 3645 }
3646 } else {
3647 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
3648
e17acd40 3649 for (; num_rsp; num_rsp--, info++) {
af58925c
MH		 3650 u32 flags;
3651
a9de9248
MH		 3652 bacpy(&data.bdaddr, &info->bdaddr);
3653 data.pscan_rep_mode = info->pscan_rep_mode;
3654 data.pscan_period_mode = info->pscan_period_mode;
3655 data.pscan_mode = 0x00;
3656 memcpy(data.dev_class, info->dev_class, 3);
3657 data.clock_offset = info->clock_offset;
3658 data.rssi = info->rssi;
41a96212 3659 data.ssp_mode = 0x00;
af58925c
MH		 3660
3661 flags = hci_inquiry_cache_update(hdev, &data, false);
3662
48264f06 3663 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
04124681 3664 info->dev_class, info->rssi,
af58925c 3665 flags, NULL, 0, NULL, 0);
a9de9248
MH		 3666 }
3667 }
3668
3669 hci_dev_unlock(hdev);
3670}
3671
6039aa73
GP		 3672static void hci_remote_ext_features_evt(struct hci_dev *hdev,
3673 struct sk_buff *skb)
a9de9248 3674{
41a96212
MH		 3675 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
3676 struct hci_conn *conn;
3677
a9de9248 3678 BT_DBG("%s", hdev->name);
41a96212 3679
41a96212
MH		 3680 hci_dev_lock(hdev);
3681
3682 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
ccd556fe
JH		 3683 if (!conn)
3684 goto unlock;
41a96212 3685
cad718ed
JH		 3686 if (ev->page < HCI_MAX_PAGES)
3687 memcpy(conn->features[ev->page], ev->features, 8);
3688
ccd556fe
JH		 3689 if (!ev->status && ev->page == 0x01) {
3690 struct inquiry_entry *ie;
41a96212 3691
cc11b9c1
AE		 3692 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3693 if (ie)
02b7cc62 3694 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
769be974 3695
bbb0eada 3696 if (ev->features[0] & LMP_HOST_SSP) {
58a681ef 3697 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
bbb0eada
JK		 3698 } else {
3699 /* It is mandatory by the Bluetooth specification that
3700 * Extended Inquiry Results are only used when Secure
3701 * Simple Pairing is enabled, but some devices violate
3702 * this.
3703 *
3704 * To make these devices work, the internal SSP
3705 * enabled flag needs to be cleared if the remote host
3706 * features do not indicate SSP support */
3707 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
3708 }
eb9a8f3f
MH		 3709
3710 if (ev->features[0] & LMP_HOST_SC)
3711 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
ccd556fe
JH		 3712 }
3713
3714 if (conn->state != BT_CONFIG)
3715 goto unlock;
3716
671267bf 3717 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
127178d2
JH		 3718 struct hci_cp_remote_name_req cp;
3719 memset(&cp, 0, sizeof(cp));
3720 bacpy(&cp.bdaddr, &conn->dst);
3721 cp.pscan_rep_mode = 0x02;
3722 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
b644ba33 3723 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
48ec92fa 3724 mgmt_device_connected(hdev, conn, 0, NULL, 0);
392599b9 3725
127178d2 3726 if (!hci_outgoing_auth_needed(hdev, conn)) {
ccd556fe 3727 conn->state = BT_CONNECTED;
539c496d 3728 hci_connect_cfm(conn, ev->status);
76a68ba0 3729 hci_conn_drop(conn);
41a96212
MH		 3730 }
3731
ccd556fe 3732unlock:
41a96212 3733 hci_dev_unlock(hdev);
a9de9248
MH		 3734}
3735
6039aa73
GP		 3736static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
3737 struct sk_buff *skb)
a9de9248 3738{
b6a0dc82
MH		 3739 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
3740 struct hci_conn *conn;
3741
9f1db00c 3742 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
b6a0dc82
MH		 3743
3744 hci_dev_lock(hdev);
3745
3746 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
9dc0a3af
MH		 3747 if (!conn) {
3748 if (ev->link_type == ESCO_LINK)
3749 goto unlock;
3750
618353b1
KP		 3751 /* When the link type in the event indicates SCO connection
3752 * and lookup of the connection object fails, then check
3753 * if an eSCO connection object exists.
3754 *
3755 * The core limits the synchronous connections to either
3756 * SCO or eSCO. The eSCO connection is preferred and tried
3757 * to be setup first and until successfully established,
3758 * the link type will be hinted as eSCO.
3759 */
9dc0a3af
MH		 3760 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
3761 if (!conn)
3762 goto unlock;
9dc0a3af 3763 }
b6a0dc82 3764
732547f9
MH		 3765 switch (ev->status) {
3766 case 0x00:
b6a0dc82
MH		 3767 conn->handle = __le16_to_cpu(ev->handle);
3768 conn->state = BT_CONNECTED;
618353b1 3769 conn->type = ev->link_type;
7d0db0a3 3770
23b9ceb7 3771 hci_debugfs_create_conn(conn);
7d0db0a3 3772 hci_conn_add_sysfs(conn);
732547f9
MH		 3773 break;
3774
81218d20 3775 case 0x10: /* Connection Accept Timeout */
1a4c958c 3776 case 0x0d: /* Connection Rejected due to Limited Resources */
705e5711 3777 case 0x11: /* Unsupported Feature or Parameter Value */
732547f9 3778 case 0x1c: /* SCO interval rejected */
1038a00b 3779 case 0x1a: /* Unsupported Remote Feature */
732547f9 3780 case 0x1f: /* Unspecified error */
27539bc4 3781 case 0x20: /* Unsupported LMP Parameter value */
2dea632f 3782 if (conn->out) {
732547f9
MH		 3783 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
3784 (hdev->esco_type & EDR_ESCO_MASK);
2dea632f
FD		 3785 if (hci_setup_sync(conn, conn->link->handle))
3786 goto unlock;
732547f9
MH		 3787 }
3788 /* fall through */
3789
3790 default:
b6a0dc82 3791 conn->state = BT_CLOSED;
732547f9
MH		 3792 break;
3793 }
b6a0dc82 3794
539c496d 3795 hci_connect_cfm(conn, ev->status);
b6a0dc82
MH		 3796 if (ev->status)
3797 hci_conn_del(conn);
3798
3799unlock:
3800 hci_dev_unlock(hdev);
a9de9248
MH		 3801}
3802
efdcf8e3
MH		 3803static inline size_t eir_get_length(u8 *eir, size_t eir_len)
3804{
3805 size_t parsed = 0;
3806
3807 while (parsed < eir_len) {
3808 u8 field_len = eir[0];
3809
3810 if (field_len == 0)
3811 return parsed;
3812
3813 parsed += field_len + 1;
3814 eir += field_len + 1;
3815 }
3816
3817 return eir_len;
3818}
3819
6039aa73
GP		 3820static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
3821 struct sk_buff *skb)
1da177e4 3822{
a9de9248
MH		 3823 struct inquiry_data data;
3824 struct extended_inquiry_info *info = (void *) (skb->data + 1);
3825 int num_rsp = *((__u8 *) skb->data);
9d939d94 3826 size_t eir_len;
1da177e4 3827
a9de9248 3828 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1da177e4 3829
a9de9248
MH		 3830 if (!num_rsp)
3831 return;
1da177e4 3832
d7a5a11d 3833 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 3834 return;
3835
a9de9248
MH		 3836 hci_dev_lock(hdev);
3837
e17acd40 3838 for (; num_rsp; num_rsp--, info++) {
af58925c
MH		 3839 u32 flags;
3840 bool name_known;
561aafbc 3841
a9de9248 3842 bacpy(&data.bdaddr, &info->bdaddr);
138d22ef
SJ		 3843 data.pscan_rep_mode = info->pscan_rep_mode;
3844 data.pscan_period_mode = info->pscan_period_mode;
3845 data.pscan_mode = 0x00;
a9de9248 3846 memcpy(data.dev_class, info->dev_class, 3);
138d22ef
SJ		 3847 data.clock_offset = info->clock_offset;
3848 data.rssi = info->rssi;
41a96212 3849 data.ssp_mode = 0x01;
561aafbc 3850
d7a5a11d 3851 if (hci_dev_test_flag(hdev, HCI_MGMT))
0d3b7f64
JH		 3852 name_known = eir_get_data(info->data,
3853 sizeof(info->data),
3854 EIR_NAME_COMPLETE, NULL);
561aafbc
JH		 3855 else
3856 name_known = true;
3857
af58925c
MH		 3858 flags = hci_inquiry_cache_update(hdev, &data, name_known);
3859
9d939d94 3860 eir_len = eir_get_length(info->data, sizeof(info->data));
af58925c 3861
48264f06 3862 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
af58925c
MH		 3863 info->dev_class, info->rssi,
3864 flags, info->data, eir_len, NULL, 0);
a9de9248
MH		 3865 }
3866
3867 hci_dev_unlock(hdev);
3868}
1da177e4 3869
1c2e0041
JH		 3870static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
3871 struct sk_buff *skb)
3872{
3873 struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
3874 struct hci_conn *conn;
3875
9f1db00c 3876 BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status,
1c2e0041
JH		 3877 __le16_to_cpu(ev->handle));
3878
3879 hci_dev_lock(hdev);
3880
3881 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3882 if (!conn)
3883 goto unlock;
3884
9eb1fbfa
JH		 3885 /* For BR/EDR the necessary steps are taken through the
3886 * auth_complete event.
3887 */
3888 if (conn->type != LE_LINK)
3889 goto unlock;
3890
1c2e0041
JH		 3891 if (!ev->status)
3892 conn->sec_level = conn->pending_sec_level;
3893
3894 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3895
3896 if (ev->status && conn->state == BT_CONNECTED) {
bed71748 3897 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
76a68ba0 3898 hci_conn_drop(conn);
1c2e0041
JH		 3899 goto unlock;
3900 }
3901
3902 if (conn->state == BT_CONFIG) {
3903 if (!ev->status)
3904 conn->state = BT_CONNECTED;
3905
539c496d 3906 hci_connect_cfm(conn, ev->status);
76a68ba0 3907 hci_conn_drop(conn);
1c2e0041
JH		 3908 } else {
3909 hci_auth_cfm(conn, ev->status);
3910
3911 hci_conn_hold(conn);
3912 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 3913 hci_conn_drop(conn);
1c2e0041
JH		 3914 }
3915
3916unlock:
3917 hci_dev_unlock(hdev);
3918}
3919
6039aa73 3920static u8 hci_get_auth_req(struct hci_conn *conn)
17fa4b9d 3921{
17fa4b9d 3922 /* If remote requests no-bonding follow that lead */
acabae96
MA		 3923 if (conn->remote_auth == HCI_AT_NO_BONDING ||
3924 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
58797bf7 3925 return conn->remote_auth | (conn->auth_type & 0x01);
17fa4b9d 3926
b7f94c88
MA		 3927 /* If both remote and local have enough IO capabilities, require
3928 * MITM protection
3929 */
3930 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
3931 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
3932 return conn->remote_auth | 0x01;
3933
7e74170a
TM		 3934 /* No MITM protection possible so ignore remote requirement */
3935 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
17fa4b9d
JH		 3936}
3937
a83ed81e
MH		 3938static u8 bredr_oob_data_present(struct hci_conn *conn)
3939{
3940 struct hci_dev *hdev = conn->hdev;
3941 struct oob_data *data;
3942
3943 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
3944 if (!data)
3945 return 0x00;
3946
455c2ff0
MH		 3947 if (bredr_sc_enabled(hdev)) {
3948 /* When Secure Connections is enabled, then just
3949 * return the present value stored with the OOB
3950 * data. The stored value contains the right present
3951 * information. However it can only be trusted when
3952 * not in Secure Connection Only mode.
3953 */
3954 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
3955 return data->present;
659c7fb0 3956
455c2ff0
MH		 3957 /* When Secure Connections Only mode is enabled, then
3958 * the P-256 values are required. If they are not
3959 * available, then do not declare that OOB data is
3960 * present.
659c7fb0 3961 */
455c2ff0
MH		 3962 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
3963 !memcmp(data->hash256, ZERO_KEY, 16))
659c7fb0
MH		 3964 return 0x00;
3965
455c2ff0 3966 return 0x02;
659c7fb0 3967 }
a83ed81e 3968
455c2ff0
MH		 3969 /* When Secure Connections is not enabled or actually
3970 * not supported by the hardware, then check that if
3971 * P-192 data values are present.
3972 */
3973 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
3974 !memcmp(data->hash192, ZERO_KEY, 16))
3975 return 0x00;
3976
3977 return 0x01;
a83ed81e
MH		 3978}
3979
6039aa73 3980static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
0493684e
MH		 3981{
3982 struct hci_ev_io_capa_request *ev = (void *) skb->data;
3983 struct hci_conn *conn;
3984
3985 BT_DBG("%s", hdev->name);
3986
3987 hci_dev_lock(hdev);
3988
3989 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
03b555e1
JH		 3990 if (!conn)
3991 goto unlock;
3992
3993 hci_conn_hold(conn);
3994
d7a5a11d 3995 if (!hci_dev_test_flag(hdev, HCI_MGMT))
03b555e1
JH		 3996 goto unlock;
3997
2f407f0a
JH		 3998 /* Allow pairing if we're pairable, the initiators of the
3999 * pairing or if the remote is not requesting bonding.
4000 */
d7a5a11d 4001 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
2f407f0a 4002 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
807deac2 4003 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
17fa4b9d
JH		 4004 struct hci_cp_io_capability_reply cp;
4005
4006 bacpy(&cp.bdaddr, &ev->bdaddr);
7a7f1e7c
HG		 4007 /* Change the IO capability from KeyboardDisplay
4008 * to DisplayYesNo as it is not supported by BT spec. */
4009 cp.capability = (conn->io_capability == 0x04) ?
a767631a 4010 HCI_IO_DISPLAY_YESNO : conn->io_capability;
b7f94c88
MA		 4011
4012 /* If we are initiators, there is no remote information yet */
4013 if (conn->remote_auth == 0xff) {
b16c6604 4014 /* Request MITM protection if our IO caps allow it
4ad51a75 4015 * except for the no-bonding case.
b16c6604 4016 */
6fd6b915 4017 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
9f743d74 4018 conn->auth_type != HCI_AT_NO_BONDING)
6c53823a 4019 conn->auth_type |= 0x01;
b7f94c88
MA		 4020 } else {
4021 conn->auth_type = hci_get_auth_req(conn);
b7f94c88 4022 }
17fa4b9d 4023
82c295b1
JH		 4024 /* If we're not bondable, force one of the non-bondable
4025 * authentication requirement values.
4026 */
d7a5a11d 4027 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
82c295b1
JH		 4028 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
4029
4030 cp.authentication = conn->auth_type;
a83ed81e 4031 cp.oob_data = bredr_oob_data_present(conn);
ce85ee13 4032
17fa4b9d 4033 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
807deac2 4034 sizeof(cp), &cp);
03b555e1
JH		 4035 } else {
4036 struct hci_cp_io_capability_neg_reply cp;
4037
4038 bacpy(&cp.bdaddr, &ev->bdaddr);
9f5a0d7b 4039 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
0493684e 4040
03b555e1 4041 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
807deac2 4042 sizeof(cp), &cp);
03b555e1
JH		 4043 }
4044
4045unlock:
4046 hci_dev_unlock(hdev);
4047}
4048
6039aa73 4049static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
03b555e1
JH		 4050{
4051 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
4052 struct hci_conn *conn;
4053
4054 BT_DBG("%s", hdev->name);
4055
4056 hci_dev_lock(hdev);
4057
4058 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4059 if (!conn)
4060 goto unlock;
4061
03b555e1 4062 conn->remote_cap = ev->capability;
03b555e1
JH		 4063 conn->remote_auth = ev->authentication;
4064
4065unlock:
0493684e
MH		 4066 hci_dev_unlock(hdev);
4067}
4068
6039aa73
GP		 4069static void hci_user_confirm_request_evt(struct hci_dev *hdev,
4070 struct sk_buff *skb)
a5c29683
JH		 4071{
4072 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
55bc1a37 4073 int loc_mitm, rem_mitm, confirm_hint = 0;
7a828908 4074 struct hci_conn *conn;
a5c29683
JH		 4075
4076 BT_DBG("%s", hdev->name);
4077
4078 hci_dev_lock(hdev);
4079
d7a5a11d 4080 if (!hci_dev_test_flag(hdev, HCI_MGMT))
7a828908 4081 goto unlock;
a5c29683 4082
7a828908
JH		 4083 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4084 if (!conn)
4085 goto unlock;
4086
4087 loc_mitm = (conn->auth_type & 0x01);
4088 rem_mitm = (conn->remote_auth & 0x01);
4089
4090 /* If we require MITM but the remote device can't provide that
6c53823a
JH		 4091 * (it has NoInputNoOutput) then reject the confirmation
4092 * request. We check the security level here since it doesn't
4093 * necessarily match conn->auth_type.
6fd6b915 4094 */
6c53823a
JH		 4095 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
4096 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
7a828908
JH		 4097 BT_DBG("Rejecting request: remote device can't provide MITM");
4098 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
807deac2 4099 sizeof(ev->bdaddr), &ev->bdaddr);
7a828908
JH		 4100 goto unlock;
4101 }
4102
4103 /* If no side requires MITM protection; auto-accept */
a767631a
MA		 4104 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
4105 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
55bc1a37
JH		 4106
4107 /* If we're not the initiators request authorization to
4108 * proceed from user space (mgmt_user_confirm with
ba15a58b 4109 * confirm_hint set to 1). The exception is if neither
02f3e254
JH		 4110 * side had MITM or if the local IO capability is
4111 * NoInputNoOutput, in which case we do auto-accept
ba15a58b
JH		 4112 */
4113 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
02f3e254 4114 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
ba15a58b 4115 (loc_mitm || rem_mitm)) {
55bc1a37
JH		 4116 BT_DBG("Confirming auto-accept as acceptor");
4117 confirm_hint = 1;
4118 goto confirm;
4119 }
4120
9f61656a 4121 BT_DBG("Auto-accept of user confirmation with %ums delay",
807deac2 4122 hdev->auto_accept_delay);
9f61656a
JH		 4123
4124 if (hdev->auto_accept_delay > 0) {
4125 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
7bc18d9d
JH		 4126 queue_delayed_work(conn->hdev->workqueue,
4127 &conn->auto_accept_work, delay);
9f61656a
JH		 4128 goto unlock;
4129 }
4130
7a828908 4131 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
807deac2 4132 sizeof(ev->bdaddr), &ev->bdaddr);
7a828908
JH		 4133 goto unlock;
4134 }
4135
55bc1a37 4136confirm:
39adbffe
JH		 4137 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
4138 le32_to_cpu(ev->passkey), confirm_hint);
7a828908
JH		 4139
4140unlock:
a5c29683
JH		 4141 hci_dev_unlock(hdev);
4142}
4143
6039aa73
GP		 4144static void hci_user_passkey_request_evt(struct hci_dev *hdev,
4145 struct sk_buff *skb)
1143d458
BG		 4146{
4147 struct hci_ev_user_passkey_req *ev = (void *) skb->data;
4148
4149 BT_DBG("%s", hdev->name);
4150
d7a5a11d 4151 if (hci_dev_test_flag(hdev, HCI_MGMT))
272d90df 4152 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
1143d458
BG		 4153}
4154
92a25256
JH		 4155static void hci_user_passkey_notify_evt(struct hci_dev *hdev,
4156 struct sk_buff *skb)
4157{
4158 struct hci_ev_user_passkey_notify *ev = (void *) skb->data;
4159 struct hci_conn *conn;
4160
4161 BT_DBG("%s", hdev->name);
4162
4163 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4164 if (!conn)
4165 return;
4166
4167 conn->passkey_notify = __le32_to_cpu(ev->passkey);
4168 conn->passkey_entered = 0;
4169
d7a5a11d 4170 if (hci_dev_test_flag(hdev, HCI_MGMT))
92a25256
JH		 4171 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4172 conn->dst_type, conn->passkey_notify,
4173 conn->passkey_entered);
4174}
4175
4176static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
4177{
4178 struct hci_ev_keypress_notify *ev = (void *) skb->data;
4179 struct hci_conn *conn;
4180
4181 BT_DBG("%s", hdev->name);
4182
4183 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4184 if (!conn)
4185 return;
4186
4187 switch (ev->type) {
4188 case HCI_KEYPRESS_STARTED:
4189 conn->passkey_entered = 0;
4190 return;
4191
4192 case HCI_KEYPRESS_ENTERED:
4193 conn->passkey_entered++;
4194 break;
4195
4196 case HCI_KEYPRESS_ERASED:
4197 conn->passkey_entered--;
4198 break;
4199
4200 case HCI_KEYPRESS_CLEARED:
4201 conn->passkey_entered = 0;
4202 break;
4203
4204 case HCI_KEYPRESS_COMPLETED:
4205 return;
4206 }
4207
d7a5a11d 4208 if (hci_dev_test_flag(hdev, HCI_MGMT))
92a25256
JH		 4209 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4210 conn->dst_type, conn->passkey_notify,
4211 conn->passkey_entered);
4212}
4213
6039aa73
GP		 4214static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
4215 struct sk_buff *skb)
0493684e
MH		 4216{
4217 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
4218 struct hci_conn *conn;
4219
4220 BT_DBG("%s", hdev->name);
4221
4222 hci_dev_lock(hdev);
4223
4224 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2a611692
JH		 4225 if (!conn)
4226 goto unlock;
4227
c1d4fa7a
JH		 4228 /* Reset the authentication requirement to unknown */
4229 conn->remote_auth = 0xff;
4230
2a611692
JH		 4231 /* To avoid duplicate auth_failed events to user space we check
4232 * the HCI_CONN_AUTH_PEND flag which will be set if we
4233 * initiated the authentication. A traditional auth_complete
4234 * event gets always produced as initiator and is also mapped to
4235 * the mgmt_auth_failed event */
fa1bd918 4236 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
e1e930f5 4237 mgmt_auth_failed(conn, ev->status);
0493684e 4238
76a68ba0 4239 hci_conn_drop(conn);
2a611692
JH		 4240
4241unlock:
0493684e
MH		 4242 hci_dev_unlock(hdev);
4243}
4244
6039aa73
GP		 4245static void hci_remote_host_features_evt(struct hci_dev *hdev,
4246 struct sk_buff *skb)
41a96212
MH		 4247{
4248 struct hci_ev_remote_host_features *ev = (void *) skb->data;
4249 struct inquiry_entry *ie;
cad718ed 4250 struct hci_conn *conn;
41a96212
MH		 4251
4252 BT_DBG("%s", hdev->name);
4253
4254 hci_dev_lock(hdev);
4255
cad718ed
JH		 4256 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4257 if (conn)
4258 memcpy(conn->features[1], ev->features, 8);
4259
cc11b9c1
AE		 4260 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4261 if (ie)
02b7cc62 4262 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
41a96212
MH		 4263
4264 hci_dev_unlock(hdev);
4265}
4266
6039aa73
GP		 4267static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
4268 struct sk_buff *skb)
2763eda6
SJ		 4269{
4270 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
4271 struct oob_data *data;
4272
4273 BT_DBG("%s", hdev->name);
4274
4275 hci_dev_lock(hdev);
4276
d7a5a11d 4277 if (!hci_dev_test_flag(hdev, HCI_MGMT))
e1ba1f15
SJ		 4278 goto unlock;
4279
6928a924 4280 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
6665d057
MH		 4281 if (!data) {
4282 struct hci_cp_remote_oob_data_neg_reply cp;
519ca9d0 4283
6665d057
MH		 4284 bacpy(&cp.bdaddr, &ev->bdaddr);
4285 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
4286 sizeof(cp), &cp);
4287 goto unlock;
4288 }
2763eda6 4289
6665d057
MH		 4290 if (bredr_sc_enabled(hdev)) {
4291 struct hci_cp_remote_oob_ext_data_reply cp;
519ca9d0 4292
6665d057 4293 bacpy(&cp.bdaddr, &ev->bdaddr);
d7a5a11d 4294 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
6665d057
MH		 4295 memset(cp.hash192, 0, sizeof(cp.hash192));
4296 memset(cp.rand192, 0, sizeof(cp.rand192));
4297 } else {
4298 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
4299 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
519ca9d0 4300 }
6665d057
MH		 4301 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
4302 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
4303
4304 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
4305 sizeof(cp), &cp);
2763eda6 4306 } else {
6665d057 4307 struct hci_cp_remote_oob_data_reply cp;
2763eda6
SJ		 4308
4309 bacpy(&cp.bdaddr, &ev->bdaddr);
6665d057
MH		 4310 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
4311 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
4312
4313 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
519ca9d0 4314 sizeof(cp), &cp);
2763eda6
SJ		 4315 }
4316
e1ba1f15 4317unlock:
2763eda6
SJ		 4318 hci_dev_unlock(hdev);
4319}
4320
a77a6a14
AW		 4321#if IS_ENABLED(CONFIG_BT_HS)
4322static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
4323{
4324 struct hci_ev_channel_selected *ev = (void *)skb->data;
4325 struct hci_conn *hcon;
4326
4327 BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);
4328
4329 skb_pull(skb, sizeof(*ev));
4330
4331 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4332 if (!hcon)
4333 return;
4334
4335 amp_read_loc_assoc_final_data(hdev, hcon);
4336}
4337
d5e91192
AE		 4338static void hci_phy_link_complete_evt(struct hci_dev *hdev,
4339 struct sk_buff *skb)
4340{
4341 struct hci_ev_phy_link_complete *ev = (void *) skb->data;
4342 struct hci_conn *hcon, *bredr_hcon;
4343
4344 BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
4345 ev->status);
4346
4347 hci_dev_lock(hdev);
4348
4349 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4350 if (!hcon) {
4351 hci_dev_unlock(hdev);
4352 return;
4353 }
4354
4355 if (ev->status) {
4356 hci_conn_del(hcon);
4357 hci_dev_unlock(hdev);
4358 return;
4359 }
4360
4361 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
4362
4363 hcon->state = BT_CONNECTED;
4364 bacpy(&hcon->dst, &bredr_hcon->dst);
4365
4366 hci_conn_hold(hcon);
4367 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 4368 hci_conn_drop(hcon);
d5e91192 4369
23b9ceb7 4370 hci_debugfs_create_conn(hcon);
d5e91192
AE		 4371 hci_conn_add_sysfs(hcon);
4372
cf70ff22 4373 amp_physical_cfm(bredr_hcon, hcon);
d5e91192 4374
cf70ff22 4375 hci_dev_unlock(hdev);
d5e91192
AE		 4376}
4377
27695fb4
AE		 4378static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4379{
4380 struct hci_ev_logical_link_complete *ev = (void *) skb->data;
4381 struct hci_conn *hcon;
4382 struct hci_chan *hchan;
4383 struct amp_mgr *mgr;
4384
4385 BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
4386 hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
4387 ev->status);
4388
4389 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4390 if (!hcon)
4391 return;
4392
4393 /* Create AMP hchan */
4394 hchan = hci_chan_create(hcon);
4395 if (!hchan)
4396 return;
4397
4398 hchan->handle = le16_to_cpu(ev->handle);
4399
4400 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
4401
4402 mgr = hcon->amp_mgr;
4403 if (mgr && mgr->bredr_chan) {
4404 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
4405
4406 l2cap_chan_lock(bredr_chan);
4407
4408 bredr_chan->conn->mtu = hdev->block_mtu;
4409 l2cap_logical_cfm(bredr_chan, hchan, 0);
4410 hci_conn_hold(hcon);
4411
4412 l2cap_chan_unlock(bredr_chan);
4413 }
4414}
4415
606e2a10
AE		 4416static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
4417 struct sk_buff *skb)
4418{
4419 struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
4420 struct hci_chan *hchan;
4421
4422 BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
4423 le16_to_cpu(ev->handle), ev->status);
4424
4425 if (ev->status)
4426 return;
4427
4428 hci_dev_lock(hdev);
4429
4430 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
4431 if (!hchan)
4432 goto unlock;
4433
4434 amp_destroy_logical_link(hchan, ev->reason);
4435
4436unlock:
4437 hci_dev_unlock(hdev);
4438}
4439
9eef6b3a
AE		 4440static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
4441 struct sk_buff *skb)
4442{
4443 struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
4444 struct hci_conn *hcon;
4445
4446 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4447
4448 if (ev->status)
4449 return;
4450
4451 hci_dev_lock(hdev);
4452
4453 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4454 if (hcon) {
4455 hcon->state = BT_CLOSED;
4456 hci_conn_del(hcon);
4457 }
4458
4459 hci_dev_unlock(hdev);
4460}
a77a6a14 4461#endif
9eef6b3a 4462
6039aa73 4463static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
fcd89c09
VT		 4464{
4465 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
912b42ef 4466 struct hci_conn_params *params;
fcd89c09 4467 struct hci_conn *conn;
68d6f6de 4468 struct smp_irk *irk;
837d502e 4469 u8 addr_type;
fcd89c09 4470
9f1db00c 4471 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
fcd89c09
VT		 4472
4473 hci_dev_lock(hdev);
4474
fbd96c15
JH		 4475 /* All controllers implicitly stop advertising in the event of a
4476 * connection, so ensure that the state bit is cleared.
4477 */
a358dc11 4478 hci_dev_clear_flag(hdev, HCI_LE_ADV);
fbd96c15 4479
e7d9ab73 4480 conn = hci_lookup_le_connect(hdev);
b62f328b 4481 if (!conn) {
a5c4e309 4482 conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr, ev->role);
b62f328b 4483 if (!conn) {
2064ee33 4484 bt_dev_err(hdev, "no memory for new connection");
230fd16a 4485 goto unlock;
b62f328b 4486 }
29b7988a
AG		 4487
4488 conn->dst_type = ev->bdaddr_type;
b9b343d2 4489
cb1d68f7
JH		 4490 /* If we didn't have a hci_conn object previously
4491 * but we're in master role this must be something
4492 * initiated using a white list. Since white list based
4493 * connections are not "first class citizens" we don't
4494 * have full tracking of them. Therefore, we go ahead
4495 * with a "best effort" approach of determining the
4496 * initiator address based on the HCI_PRIVACY flag.
4497 */
4498 if (conn->out) {
4499 conn->resp_addr_type = ev->bdaddr_type;
4500 bacpy(&conn->resp_addr, &ev->bdaddr);
d7a5a11d 4501 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
cb1d68f7
JH		 4502 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
4503 bacpy(&conn->init_addr, &hdev->rpa);
4504 } else {
4505 hci_copy_identity_address(hdev,
4506 &conn->init_addr,
4507 &conn->init_addr_type);
4508 }
cb1d68f7 4509 }
9489eca4
JH		 4510 } else {
4511 cancel_delayed_work(&conn->le_conn_timeout);
b62f328b 4512 }
fcd89c09 4513
80c24ab8
JH		 4514 if (!conn->out) {
4515 /* Set the responder (our side) address type based on
4516 * the advertising address type.
4517 */
4518 conn->resp_addr_type = hdev->adv_addr_type;
4519 if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM)
4520 bacpy(&conn->resp_addr, &hdev->random_addr);
4521 else
4522 bacpy(&conn->resp_addr, &hdev->bdaddr);
4523
4524 conn->init_addr_type = ev->bdaddr_type;
4525 bacpy(&conn->init_addr, &ev->bdaddr);
a720d735
MH		 4526
4527 /* For incoming connections, set the default minimum
4528 * and maximum connection interval. They will be used
4529 * to check if the parameters are in range and if not
4530 * trigger the connection update procedure.
4531 */
4532 conn->le_conn_min_interval = hdev->le_conn_min_interval;
4533 conn->le_conn_max_interval = hdev->le_conn_max_interval;
80c24ab8 4534 }
7be2edbb 4535
edb4b466
MH		 4536 /* Lookup the identity address from the stored connection
4537 * address and address type.
4538 *
4539 * When establishing connections to an identity address, the
4540 * connection procedure will store the resolvable random
4541 * address first. Now if it can be converted back into the
4542 * identity address, start using the identity address from
4543 * now on.
4544 */
4545 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
68d6f6de
JH		 4546 if (irk) {
4547 bacpy(&conn->dst, &irk->bdaddr);
4548 conn->dst_type = irk->addr_type;
4549 }
4550
2d3c2260
JH		 4551 if (ev->status) {
4552 hci_le_conn_failed(conn, ev->status);
837d502e
JH		 4553 goto unlock;
4554 }
4555
08853f18
JH		 4556 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
4557 addr_type = BDADDR_LE_PUBLIC;
4558 else
4559 addr_type = BDADDR_LE_RANDOM;
4560
2d3c2260
JH		 4561 /* Drop the connection if the device is blocked */
4562 if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) {
4563 hci_conn_drop(conn);
cd17decb
AG		 4564 goto unlock;
4565 }
4566
b644ba33 4567 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
48ec92fa 4568 mgmt_device_connected(hdev, conn, 0, NULL, 0);
83bc71b4 4569
7b5c0d52 4570 conn->sec_level = BT_SECURITY_LOW;
fcd89c09 4571 conn->handle = __le16_to_cpu(ev->handle);
0fe29fd1 4572 conn->state = BT_CONFIG;
fcd89c09 4573
e04fde60
MH		 4574 conn->le_conn_interval = le16_to_cpu(ev->interval);
4575 conn->le_conn_latency = le16_to_cpu(ev->latency);
4576 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4577
23b9ceb7 4578 hci_debugfs_create_conn(conn);
fcd89c09
VT		 4579 hci_conn_add_sysfs(conn);
4580
0fe29fd1
MH		 4581 if (!ev->status) {
4582 /* The remote features procedure is defined for master
4583 * role only. So only in case of an initiated connection
4584 * request the remote features.
4585 *
4586 * If the local controller supports slave-initiated features
4587 * exchange, then requesting the remote features in slave
4588 * role is possible. Otherwise just transition into the
4589 * connected state without requesting the remote features.
4590 */
4591 if (conn->out ||
4592 (hdev->le_features[0] & HCI_LE_SLAVE_FEATURES)) {
4593 struct hci_cp_le_read_remote_features cp;
4594
4595 cp.handle = __cpu_to_le16(conn->handle);
4596
4597 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
4598 sizeof(cp), &cp);
4599
4600 hci_conn_hold(conn);
4601 } else {
4602 conn->state = BT_CONNECTED;
4603 hci_connect_cfm(conn, ev->status);
4604 }
4605 } else {
4606 hci_connect_cfm(conn, ev->status);
4607 }
fcd89c09 4608
5477610f
JH		 4609 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
4610 conn->dst_type);
f161dd41 4611 if (params) {
95305baa 4612 list_del_init(&params->action);
f161dd41
JH		 4613 if (params->conn) {
4614 hci_conn_drop(params->conn);
f8aaf9b6 4615 hci_conn_put(params->conn);
f161dd41
JH		 4616 params->conn = NULL;
4617 }
4618 }
a4790dbd 4619
fcd89c09 4620unlock:
223683a5 4621 hci_update_background_scan(hdev);
fcd89c09
VT		 4622 hci_dev_unlock(hdev);
4623}
4624
1855d92d
MH		 4625static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
4626 struct sk_buff *skb)
4627{
4628 struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
4629 struct hci_conn *conn;
4630
4631 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4632
4633 if (ev->status)
4634 return;
4635
4636 hci_dev_lock(hdev);
4637
4638 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4639 if (conn) {
4640 conn->le_conn_interval = le16_to_cpu(ev->interval);
4641 conn->le_conn_latency = le16_to_cpu(ev->latency);
4642 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4643 }
4644
4645 hci_dev_unlock(hdev);
4646}
4647
a4790dbd 4648/* This function requires the caller holds hdev->lock */
fd45ada9
AA		 4649static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
4650 bdaddr_t *addr,
eb7e6434
SJ		 4651 u8 addr_type, u8 adv_type,
4652 bdaddr_t *direct_rpa)
a4790dbd
AG		 4653{
4654 struct hci_conn *conn;
4b9e7e75 4655 struct hci_conn_params *params;
a4790dbd 4656
1c1abcab
JH		 4657 /* If the event is not connectable don't proceed further */
4658 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
fd45ada9 4659 return NULL;
1c1abcab
JH		 4660
4661 /* Ignore if the device is blocked */
dcc36c16 4662 if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type))
fd45ada9 4663 return NULL;
1c1abcab 4664
f99353cf
JH		 4665 /* Most controller will fail if we try to create new connections
4666 * while we have an existing one in slave role.
4667 */
4668 if (hdev->conn_hash.le_num_slave > 0)
fd45ada9 4669 return NULL;
f99353cf 4670
1c1abcab
JH		 4671 /* If we're not connectable only connect devices that we have in
4672 * our pend_le_conns list.
4673 */
49c50922
JH		 4674 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
4675 addr_type);
4b9e7e75 4676 if (!params)
fd45ada9 4677 return NULL;
4b9e7e75 4678
28a667c9
JP		 4679 if (!params->explicit_connect) {
4680 switch (params->auto_connect) {
4681 case HCI_AUTO_CONN_DIRECT:
4682 /* Only devices advertising with ADV_DIRECT_IND are
4683 * triggering a connection attempt. This is allowing
4684 * incoming connections from slave devices.
4685 */
4686 if (adv_type != LE_ADV_DIRECT_IND)
4687 return NULL;
4688 break;
4689 case HCI_AUTO_CONN_ALWAYS:
4690 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
4691 * are triggering a connection attempt. This means
4692 * that incoming connectioms from slave device are
4693 * accepted and also outgoing connections to slave
4694 * devices are established when found.
4695 */
4696 break;
4697 default:
fd45ada9 4698 return NULL;
28a667c9 4699 }
4b9e7e75 4700 }
a4790dbd
AG		 4701
4702 conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
eb7e6434
SJ		 4703 HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER,
4704 direct_rpa);
f161dd41 4705 if (!IS_ERR(conn)) {
28a667c9
JP		 4706 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
4707 * by higher layer that tried to connect, if no then
4708 * store the pointer since we don't really have any
f161dd41
JH		 4709 * other owner of the object besides the params that
4710 * triggered it. This way we can abort the connection if
4711 * the parameters get removed and keep the reference
4712 * count consistent once the connection is established.
4713 */
28a667c9
JP		 4714
4715 if (!params->explicit_connect)
4716 params->conn = hci_conn_get(conn);
4717
fd45ada9 4718 return conn;
f161dd41 4719 }
a4790dbd
AG		 4720
4721 switch (PTR_ERR(conn)) {
4722 case -EBUSY:
4723 /* If hci_connect() returns -EBUSY it means there is already
4724 * an LE connection attempt going on. Since controllers don't
4725 * support more than one connection attempt at the time, we
4726 * don't consider this an error case.
4727 */
4728 break;
4729 default:
4730 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
fd45ada9 4731 return NULL;
a4790dbd 4732 }
fd45ada9
AA		 4733
4734 return NULL;
a4790dbd
AG		 4735}
4736
4af605d8 4737static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
2f010b55
MH		 4738 u8 bdaddr_type, bdaddr_t *direct_addr,
4739 u8 direct_addr_type, s8 rssi, u8 *data, u8 len)
4af605d8 4740{
b9a6328f 4741 struct discovery_state *d = &hdev->discovery;
1c1abcab 4742 struct smp_irk *irk;
fd45ada9 4743 struct hci_conn *conn;
474ee066 4744 bool match;
c70a7e4c 4745 u32 flags;
6818375e
SJ		 4746 u8 *ptr, real_len;
4747
56b40fbf
JH		 4748 switch (type) {
4749 case LE_ADV_IND:
4750 case LE_ADV_DIRECT_IND:
4751 case LE_ADV_SCAN_IND:
4752 case LE_ADV_NONCONN_IND:
4753 case LE_ADV_SCAN_RSP:
4754 break;
4755 default:
2064ee33
MH		 4756 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
4757 "type: 0x%02x", type);
56b40fbf
JH		 4758 return;
4759 }
4760
6818375e
SJ		 4761 /* Find the end of the data in case the report contains padded zero
4762 * bytes at the end causing an invalid length value.
4763 *
4764 * When data is NULL, len is 0 so there is no need for extra ptr
4765 * check as 'ptr < data + 0' is already false in such case.
4766 */
4767 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
4768 if (ptr + 1 + *ptr > data + len)
4769 break;
4770 }
4771
4772 real_len = ptr - data;
4773
4774 /* Adjust for actual length */
4775 if (len != real_len) {
2064ee33 4776 bt_dev_err_ratelimited(hdev, "advertising data len corrected");
6818375e
SJ		 4777 len = real_len;
4778 }
b9a6328f 4779
2f010b55
MH		 4780 /* If the direct address is present, then this report is from
4781 * a LE Direct Advertising Report event. In that case it is
4782 * important to see if the address is matching the local
4783 * controller address.
4784 */
4785 if (direct_addr) {
4786 /* Only resolvable random addresses are valid for these
4787 * kind of reports and others can be ignored.
4788 */
4789 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
4790 return;
4791
4792 /* If the controller is not using resolvable random
4793 * addresses, then this report can be ignored.
4794 */
d7a5a11d 4795 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
2f010b55
MH		 4796 return;
4797
4798 /* If the local IRK of the controller does not match
4799 * with the resolvable random address provided, then
4800 * this report can be ignored.
4801 */
4802 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
4803 return;
4804 }
4805
1c1abcab
JH		 4806 /* Check if we need to convert to identity address */
4807 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
4808 if (irk) {
4809 bdaddr = &irk->bdaddr;
4810 bdaddr_type = irk->addr_type;
4811 }
4812
eb7e6434
SJ		 4813 /* Check if we have been requested to connect to this device.
4814 *
4815 * direct_addr is set only for directed advertising reports (it is NULL
4816 * for advertising reports) and is already verified to be RPA above.
4817 */
4818 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, type,
4819 direct_addr);
fd45ada9
AA		 4820 if (conn && type == LE_ADV_IND) {
4821 /* Store report for later inclusion by
4822 * mgmt_device_connected
4823 */
4824 memcpy(conn->le_adv_data, data, len);
4825 conn->le_adv_data_len = len;
4826 }
1c1abcab 4827
0d2bf134
JH		 4828 /* Passive scanning shouldn't trigger any device found events,
4829 * except for devices marked as CONN_REPORT for which we do send
4830 * device found events.
4831 */
ca5c4be7 4832 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
0d2bf134
JH		 4833 if (type == LE_ADV_DIRECT_IND)
4834 return;
4835
3a19b6fe
JH		 4836 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
4837 bdaddr, bdaddr_type))
0d2bf134
JH		 4838 return;
4839
4840 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
4841 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4842 else
4843 flags = 0;
4844 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4845 rssi, flags, data, len, NULL, 0);
97bf2e99 4846 return;
ca5c4be7 4847 }
4af605d8 4848
c70a7e4c
MH		 4849 /* When receiving non-connectable or scannable undirected
4850 * advertising reports, this means that the remote device is
4851 * not connectable and then clearly indicate this in the
4852 * device found event.
4853 *
4854 * When receiving a scan response, then there is no way to
4855 * know if the remote device is connectable or not. However
4856 * since scan responses are merged with a previously seen
4857 * advertising report, the flags field from that report
4858 * will be used.
4859 *
4860 * In the really unlikely case that a controller get confused
4861 * and just sends a scan response event, then it is marked as
4862 * not connectable as well.
4863 */
4864 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND ||
4865 type == LE_ADV_SCAN_RSP)
4866 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4867 else
4868 flags = 0;
4869
b9a6328f
JH		 4870 /* If there's nothing pending either store the data from this
4871 * event or send an immediate device found event if the data
4872 * should not be stored for later.
4873 */
4874 if (!has_pending_adv_report(hdev)) {
4875 /* If the report will trigger a SCAN_REQ store it for
4876 * later merging.
4877 */
4878 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4879 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
c70a7e4c 4880 rssi, flags, data, len);
b9a6328f
JH		 4881 return;
4882 }
4883
4884 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
c70a7e4c 4885 rssi, flags, data, len, NULL, 0);
b9a6328f
JH		 4886 return;
4887 }
4888
474ee066
JH		 4889 /* Check if the pending report is for the same device as the new one */
4890 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
4891 bdaddr_type == d->last_adv_addr_type);
4892
b9a6328f
JH		 4893 /* If the pending data doesn't match this report or this isn't a
4894 * scan response (e.g. we got a duplicate ADV_IND) then force
4895 * sending of the pending data.
4896 */
474ee066
JH		 4897 if (type != LE_ADV_SCAN_RSP || !match) {
4898 /* Send out whatever is in the cache, but skip duplicates */
4899 if (!match)
4900 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
ff5cd29f 4901 d->last_adv_addr_type, NULL,
c70a7e4c 4902 d->last_adv_rssi, d->last_adv_flags,
ff5cd29f 4903 d->last_adv_data,
474ee066 4904 d->last_adv_data_len, NULL, 0);
b9a6328f
JH		 4905
4906 /* If the new report will trigger a SCAN_REQ store it for
4907 * later merging.
4908 */
4909 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4910 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
c70a7e4c 4911 rssi, flags, data, len);
b9a6328f
JH		 4912 return;
4913 }
4914
4915 /* The advertising reports cannot be merged, so clear
4916 * the pending report and send out a device found event.
4917 */
4918 clear_pending_adv_report(hdev);
5c5b93e4 4919 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
c70a7e4c 4920 rssi, flags, data, len, NULL, 0);
b9a6328f
JH		 4921 return;
4922 }
4923
4924 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
4925 * the new event is a SCAN_RSP. We can therefore proceed with
4926 * sending a merged device found event.
4927 */
4928 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
c70a7e4c 4929 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
42bd6a56 4930 d->last_adv_data, d->last_adv_data_len, data, len);
b9a6328f 4931 clear_pending_adv_report(hdev);
4af605d8
JH		 4932}
4933
6039aa73 4934static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
9aa04c91 4935{
e95beb41
AG		 4936 u8 num_reports = skb->data[0];
4937 void *ptr = &skb->data[1];
9aa04c91 4938
a4790dbd
AG		 4939 hci_dev_lock(hdev);
4940
e95beb41
AG		 4941 while (num_reports--) {
4942 struct hci_ev_le_advertising_info *ev = ptr;
4af605d8 4943 s8 rssi;
a4790dbd 4944
3c9e9195 4945 rssi = ev->data[ev->length];
4af605d8 4946 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
2f010b55
MH		 4947 ev->bdaddr_type, NULL, 0, rssi,
4948 ev->data, ev->length);
3c9e9195 4949
e95beb41 4950 ptr += sizeof(*ev) + ev->length + 1;
9aa04c91 4951 }
a4790dbd
AG		 4952
4953 hci_dev_unlock(hdev);
9aa04c91
AG		 4954}
4955
0fe29fd1
MH		 4956static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev,
4957 struct sk_buff *skb)
4958{
4959 struct hci_ev_le_remote_feat_complete *ev = (void *)skb->data;
4960 struct hci_conn *conn;
4961
4962 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4963
4964 hci_dev_lock(hdev);
4965
4966 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4967 if (conn) {
4968 if (!ev->status)
4969 memcpy(conn->features[0], ev->features, 8);
4970
4971 if (conn->state == BT_CONFIG) {
4972 __u8 status;
4973
4974 /* If the local controller supports slave-initiated
4975 * features exchange, but the remote controller does
4976 * not, then it is possible that the error code 0x1a
4977 * for unsupported remote feature gets returned.
4978 *
4979 * In this specific case, allow the connection to
4980 * transition into connected state and mark it as
4981 * successful.
4982 */
4983 if ((hdev->le_features[0] & HCI_LE_SLAVE_FEATURES) &&
4984 !conn->out && ev->status == 0x1a)
4985 status = 0x00;
4986 else
4987 status = ev->status;
4988
4989 conn->state = BT_CONNECTED;
4990 hci_connect_cfm(conn, status);
4991 hci_conn_drop(conn);
4992 }
4993 }
4994
4995 hci_dev_unlock(hdev);
4996}
4997
6039aa73 4998static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
a7a595f6
VCG		 4999{
5000 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
5001 struct hci_cp_le_ltk_reply cp;
bea710fe 5002 struct hci_cp_le_ltk_neg_reply neg;
a7a595f6 5003 struct hci_conn *conn;
c9839a11 5004 struct smp_ltk *ltk;
a7a595f6 5005
9f1db00c 5006 BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle));
a7a595f6
VCG		 5007
5008 hci_dev_lock(hdev);
5009
5010 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
bea710fe
VCG		 5011 if (conn == NULL)
5012 goto not_found;
a7a595f6 5013
f3a73d97 5014 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
5378bc56 5015 if (!ltk)
bea710fe
VCG		 5016 goto not_found;
5017
5378bc56
JH		 5018 if (smp_ltk_is_sc(ltk)) {
5019 /* With SC both EDiv and Rand are set to zero */
5020 if (ev->ediv || ev->rand)
5021 goto not_found;
5022 } else {
5023 /* For non-SC keys check that EDiv and Rand match */
5024 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
5025 goto not_found;
5026 }
5027
8b76ce34
JH		 5028 memcpy(cp.ltk, ltk->val, ltk->enc_size);
5029 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
a7a595f6 5030 cp.handle = cpu_to_le16(conn->handle);
c9839a11 5031
a6f7833c 5032 conn->pending_sec_level = smp_ltk_sec_level(ltk);
a7a595f6 5033
89cbb4da 5034 conn->enc_key_size = ltk->enc_size;
a7a595f6
VCG		 5035
5036 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
5037
5981a882
CT		 5038 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
5039 * temporary key used to encrypt a connection following
5040 * pairing. It is used during the Encrypted Session Setup to
5041 * distribute the keys. Later, security can be re-established
5042 * using a distributed LTK.
5043 */
2ceba539 5044 if (ltk->type == SMP_STK) {
fe59a05f 5045 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
970d0f1b
JH		 5046 list_del_rcu(&ltk->list);
5047 kfree_rcu(ltk, rcu);
fe59a05f
JH		 5048 } else {
5049 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
c9839a11
VCG		 5050 }
5051
a7a595f6 5052 hci_dev_unlock(hdev);
bea710fe
VCG		 5053
5054 return;
5055
5056not_found:
5057 neg.handle = ev->handle;
5058 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
5059 hci_dev_unlock(hdev);
a7a595f6
VCG		 5060}
5061
8e75b46a
AG		 5062static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
5063 u8 reason)
5064{
5065 struct hci_cp_le_conn_param_req_neg_reply cp;
5066
5067 cp.handle = cpu_to_le16(handle);
5068 cp.reason = reason;
5069
5070 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
5071 &cp);
5072}
5073
5074static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
5075 struct sk_buff *skb)
5076{
5077 struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data;
5078 struct hci_cp_le_conn_param_req_reply cp;
5079 struct hci_conn *hcon;
5080 u16 handle, min, max, latency, timeout;
5081
5082 handle = le16_to_cpu(ev->handle);
5083 min = le16_to_cpu(ev->interval_min);
5084 max = le16_to_cpu(ev->interval_max);
5085 latency = le16_to_cpu(ev->latency);
5086 timeout = le16_to_cpu(ev->timeout);
5087
5088 hcon = hci_conn_hash_lookup_handle(hdev, handle);
5089 if (!hcon || hcon->state != BT_CONNECTED)
5090 return send_conn_param_neg_reply(hdev, handle,
5091 HCI_ERROR_UNKNOWN_CONN_ID);
5092
5093 if (hci_check_conn_params(min, max, latency, timeout))
5094 return send_conn_param_neg_reply(hdev, handle,
5095 HCI_ERROR_INVALID_LL_PARAMS);
5096
40bef302 5097 if (hcon->role == HCI_ROLE_MASTER) {
348d50b8 5098 struct hci_conn_params *params;
f4869e2a 5099 u8 store_hint;
348d50b8
JH		 5100
5101 hci_dev_lock(hdev);
5102
5103 params = hci_conn_params_lookup(hdev, &hcon->dst,
5104 hcon->dst_type);
5105 if (params) {
5106 params->conn_min_interval = min;
5107 params->conn_max_interval = max;
5108 params->conn_latency = latency;
5109 params->supervision_timeout = timeout;
f4869e2a
JH		 5110 store_hint = 0x01;
5111 } else{
5112 store_hint = 0x00;
348d50b8
JH		 5113 }
5114
5115 hci_dev_unlock(hdev);
5116
f4869e2a
JH		 5117 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
5118 store_hint, min, max, latency, timeout);
348d50b8 5119 }
ffb5a827 5120
8e75b46a
AG		 5121 cp.handle = ev->handle;
5122 cp.interval_min = ev->interval_min;
5123 cp.interval_max = ev->interval_max;
5124 cp.latency = ev->latency;
5125 cp.timeout = ev->timeout;
5126 cp.min_ce_len = 0;
5127 cp.max_ce_len = 0;
5128
5129 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
5130}
5131
2f010b55
MH		 5132static void hci_le_direct_adv_report_evt(struct hci_dev *hdev,
5133 struct sk_buff *skb)
5134{
5135 u8 num_reports = skb->data[0];
5136 void *ptr = &skb->data[1];
5137
5138 hci_dev_lock(hdev);
5139
5140 while (num_reports--) {
5141 struct hci_ev_le_direct_adv_info *ev = ptr;
5142
5143 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
5144 ev->bdaddr_type, &ev->direct_addr,
5145 ev->direct_addr_type, ev->rssi, NULL, 0);
5146
5147 ptr += sizeof(*ev);
5148 }
5149
5150 hci_dev_unlock(hdev);
5151}
5152
6039aa73 5153static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
fcd89c09
VT		 5154{
5155 struct hci_ev_le_meta *le_ev = (void *) skb->data;
5156
5157 skb_pull(skb, sizeof(*le_ev));
5158
5159 switch (le_ev->subevent) {
5160 case HCI_EV_LE_CONN_COMPLETE:
5161 hci_le_conn_complete_evt(hdev, skb);
5162 break;
5163
1855d92d
MH		 5164 case HCI_EV_LE_CONN_UPDATE_COMPLETE:
5165 hci_le_conn_update_complete_evt(hdev, skb);
5166 break;
5167
9aa04c91
AG		 5168 case HCI_EV_LE_ADVERTISING_REPORT:
5169 hci_le_adv_report_evt(hdev, skb);
5170 break;
5171
0fe29fd1
MH		 5172 case HCI_EV_LE_REMOTE_FEAT_COMPLETE:
5173 hci_le_remote_feat_complete_evt(hdev, skb);
5174 break;
5175
a7a595f6
VCG		 5176 case HCI_EV_LE_LTK_REQ:
5177 hci_le_ltk_request_evt(hdev, skb);
5178 break;
5179
8e75b46a
AG		 5180 case HCI_EV_LE_REMOTE_CONN_PARAM_REQ:
5181 hci_le_remote_conn_param_req_evt(hdev, skb);
5182 break;
5183
2f010b55
MH		 5184 case HCI_EV_LE_DIRECT_ADV_REPORT:
5185 hci_le_direct_adv_report_evt(hdev, skb);
5186 break;
5187
fcd89c09
VT		 5188 default:
5189 break;
5190 }
5191}
5192
757aa0b5
JH		 5193static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
5194 u8 event, struct sk_buff *skb)
5195{
5196 struct hci_ev_cmd_complete *ev;
5197 struct hci_event_hdr *hdr;
5198
5199 if (!skb)
5200 return false;
5201
5202 if (skb->len < sizeof(*hdr)) {
2064ee33 5203 bt_dev_err(hdev, "too short HCI event");
757aa0b5
JH		 5204 return false;
5205 }
5206
5207 hdr = (void *) skb->data;
5208 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5209
5210 if (event) {
5211 if (hdr->evt != event)
5212 return false;
5213 return true;
5214 }
5215
63629992
JH		 5216 /* Check if request ended in Command Status - no way to retreive
5217 * any extra parameters in this case.
5218 */
5219 if (hdr->evt == HCI_EV_CMD_STATUS)
5220 return false;
5221
757aa0b5 5222 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
2064ee33
MH		 5223 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
5224 hdr->evt);
757aa0b5
JH		 5225 return false;
5226 }
5227
5228 if (skb->len < sizeof(*ev)) {
2064ee33 5229 bt_dev_err(hdev, "too short cmd_complete event");
757aa0b5
JH		 5230 return false;
5231 }
5232
5233 ev = (void *) skb->data;
5234 skb_pull(skb, sizeof(*ev));
5235
5236 if (opcode != __le16_to_cpu(ev->opcode)) {
5237 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
5238 __le16_to_cpu(ev->opcode));
5239 return false;
5240 }
5241
5242 return true;
5243}
5244
a9de9248
MH		 5245void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
5246{
5247 struct hci_event_hdr *hdr = (void *) skb->data;
e6214487
JH		 5248 hci_req_complete_t req_complete = NULL;
5249 hci_req_complete_skb_t req_complete_skb = NULL;
5250 struct sk_buff *orig_skb = NULL;
757aa0b5 5251 u8 status = 0, event = hdr->evt, req_evt = 0;
e6214487 5252 u16 opcode = HCI_OP_NOP;
a9de9248 5253
242c0ebd 5254 if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->hci.req_event == event) {
c1f23a2b 5255 struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
e6214487
JH		 5256 opcode = __le16_to_cpu(cmd_hdr->opcode);
5257 hci_req_cmd_complete(hdev, opcode, status, &req_complete,
5258 &req_complete_skb);
757aa0b5 5259 req_evt = event;
02350a72
JH		 5260 }
5261
e6214487
JH		 5262 /* If it looks like we might end up having to call
5263 * req_complete_skb, store a pristine copy of the skb since the
5264 * various handlers may modify the original one through
5265 * skb_pull() calls, etc.
5266 */
5267 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
5268 event == HCI_EV_CMD_COMPLETE)
5269 orig_skb = skb_clone(skb, GFP_KERNEL);
5270
5271 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5272
a9de9248 5273 switch (event) {
1da177e4
LT		 5274 case HCI_EV_INQUIRY_COMPLETE:
5275 hci_inquiry_complete_evt(hdev, skb);
5276 break;
5277
5278 case HCI_EV_INQUIRY_RESULT:
5279 hci_inquiry_result_evt(hdev, skb);
5280 break;
5281
a9de9248
MH		 5282 case HCI_EV_CONN_COMPLETE:
5283 hci_conn_complete_evt(hdev, skb);
21d9e30e
MH		 5284 break;
5285
1da177e4
LT		 5286 case HCI_EV_CONN_REQUEST:
5287 hci_conn_request_evt(hdev, skb);
5288 break;
5289
1da177e4
LT		 5290 case HCI_EV_DISCONN_COMPLETE:
5291 hci_disconn_complete_evt(hdev, skb);
5292 break;
5293
1da177e4
LT		 5294 case HCI_EV_AUTH_COMPLETE:
5295 hci_auth_complete_evt(hdev, skb);
5296 break;
5297
a9de9248
MH		 5298 case HCI_EV_REMOTE_NAME:
5299 hci_remote_name_evt(hdev, skb);
5300 break;
5301
1da177e4
LT		 5302 case HCI_EV_ENCRYPT_CHANGE:
5303 hci_encrypt_change_evt(hdev, skb);
5304 break;
5305
a9de9248
MH		 5306 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
5307 hci_change_link_key_complete_evt(hdev, skb);
5308 break;
5309
5310 case HCI_EV_REMOTE_FEATURES:
5311 hci_remote_features_evt(hdev, skb);
5312 break;
5313
a9de9248 5314 case HCI_EV_CMD_COMPLETE:
e6214487
JH		 5315 hci_cmd_complete_evt(hdev, skb, &opcode, &status,
5316 &req_complete, &req_complete_skb);
a9de9248
MH		 5317 break;
5318
5319 case HCI_EV_CMD_STATUS:
e6214487
JH		 5320 hci_cmd_status_evt(hdev, skb, &opcode, &status, &req_complete,
5321 &req_complete_skb);
a9de9248
MH		 5322 break;
5323
24dfa343
MH		 5324 case HCI_EV_HARDWARE_ERROR:
5325 hci_hardware_error_evt(hdev, skb);
5326 break;
5327
a9de9248
MH		 5328 case HCI_EV_ROLE_CHANGE:
5329 hci_role_change_evt(hdev, skb);
5330 break;
5331
5332 case HCI_EV_NUM_COMP_PKTS:
5333 hci_num_comp_pkts_evt(hdev, skb);
5334 break;
5335
5336 case HCI_EV_MODE_CHANGE:
5337 hci_mode_change_evt(hdev, skb);
1da177e4
LT		 5338 break;
5339
5340 case HCI_EV_PIN_CODE_REQ:
5341 hci_pin_code_request_evt(hdev, skb);
5342 break;
5343
5344 case HCI_EV_LINK_KEY_REQ:
5345 hci_link_key_request_evt(hdev, skb);
5346 break;
5347
5348 case HCI_EV_LINK_KEY_NOTIFY:
5349 hci_link_key_notify_evt(hdev, skb);
5350 break;
5351
5352 case HCI_EV_CLOCK_OFFSET:
5353 hci_clock_offset_evt(hdev, skb);
5354 break;
5355
a8746417
MH		 5356 case HCI_EV_PKT_TYPE_CHANGE:
5357 hci_pkt_type_change_evt(hdev, skb);
5358 break;
5359
85a1e930
MH		 5360 case HCI_EV_PSCAN_REP_MODE:
5361 hci_pscan_rep_mode_evt(hdev, skb);
5362 break;
5363
a9de9248
MH		 5364 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
5365 hci_inquiry_result_with_rssi_evt(hdev, skb);
04837f64
MH		 5366 break;
5367
a9de9248
MH		 5368 case HCI_EV_REMOTE_EXT_FEATURES:
5369 hci_remote_ext_features_evt(hdev, skb);
1da177e4
LT		 5370 break;
5371
a9de9248
MH		 5372 case HCI_EV_SYNC_CONN_COMPLETE:
5373 hci_sync_conn_complete_evt(hdev, skb);
5374 break;
1da177e4 5375
a9de9248
MH		 5376 case HCI_EV_EXTENDED_INQUIRY_RESULT:
5377 hci_extended_inquiry_result_evt(hdev, skb);
5378 break;
1da177e4 5379
1c2e0041
JH		 5380 case HCI_EV_KEY_REFRESH_COMPLETE:
5381 hci_key_refresh_complete_evt(hdev, skb);
5382 break;
5383
0493684e
MH		 5384 case HCI_EV_IO_CAPA_REQUEST:
5385 hci_io_capa_request_evt(hdev, skb);
5386 break;
5387
03b555e1
JH		 5388 case HCI_EV_IO_CAPA_REPLY:
5389 hci_io_capa_reply_evt(hdev, skb);
5390 break;
5391
a5c29683
JH		 5392 case HCI_EV_USER_CONFIRM_REQUEST:
5393 hci_user_confirm_request_evt(hdev, skb);
5394 break;
5395
1143d458
BG		 5396 case HCI_EV_USER_PASSKEY_REQUEST:
5397 hci_user_passkey_request_evt(hdev, skb);
5398 break;
5399
92a25256
JH		 5400 case HCI_EV_USER_PASSKEY_NOTIFY:
5401 hci_user_passkey_notify_evt(hdev, skb);
5402 break;
5403
5404 case HCI_EV_KEYPRESS_NOTIFY:
5405 hci_keypress_notify_evt(hdev, skb);
5406 break;
5407
0493684e
MH		 5408 case HCI_EV_SIMPLE_PAIR_COMPLETE:
5409 hci_simple_pair_complete_evt(hdev, skb);
5410 break;
5411
41a96212
MH		 5412 case HCI_EV_REMOTE_HOST_FEATURES:
5413 hci_remote_host_features_evt(hdev, skb);
5414 break;
5415
fcd89c09
VT		 5416 case HCI_EV_LE_META:
5417 hci_le_meta_evt(hdev, skb);
5418 break;
5419
2763eda6
SJ		 5420 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
5421 hci_remote_oob_data_request_evt(hdev, skb);
5422 break;
5423
a77a6a14
AW		 5424#if IS_ENABLED(CONFIG_BT_HS)
5425 case HCI_EV_CHANNEL_SELECTED:
5426 hci_chan_selected_evt(hdev, skb);
5427 break;
5428
d5e91192
AE		 5429 case HCI_EV_PHY_LINK_COMPLETE:
5430 hci_phy_link_complete_evt(hdev, skb);
5431 break;
5432
27695fb4
AE		 5433 case HCI_EV_LOGICAL_LINK_COMPLETE:
5434 hci_loglink_complete_evt(hdev, skb);
5435 break;
5436
606e2a10
AE		 5437 case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
5438 hci_disconn_loglink_complete_evt(hdev, skb);
5439 break;
5440
9eef6b3a
AE		 5441 case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
5442 hci_disconn_phylink_complete_evt(hdev, skb);
5443 break;
a77a6a14 5444#endif
9eef6b3a 5445
25e89e99
AE		 5446 case HCI_EV_NUM_COMP_BLOCKS:
5447 hci_num_comp_blocks_evt(hdev, skb);
5448 break;
5449
a9de9248 5450 default:
9f1db00c 5451 BT_DBG("%s event 0x%2.2x", hdev->name, event);
1da177e4
LT		 5452 break;
5453 }
5454
757aa0b5 5455 if (req_complete) {
e6214487 5456 req_complete(hdev, status, opcode);
757aa0b5
JH		 5457 } else if (req_complete_skb) {
5458 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
5459 kfree_skb(orig_skb);
5460 orig_skb = NULL;
5461 }
e6214487 5462 req_complete_skb(hdev, status, opcode, orig_skb);
757aa0b5 5463 }
e6214487
JH		 5464
5465 kfree_skb(orig_skb);
1da177e4
LT		 5466 kfree_skb(skb);
5467 hdev->stat.evt_rx++;
5468}
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